Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | Intel 10 Gigabit PCI Express Linux driver |
Shannon Nelson | 8c47eaa | 2010-01-13 01:49:34 +0000 | [diff] [blame] | 4 | Copyright(c) 1999 - 2010 Intel Corporation. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5 | |
| 6 | This program is free software; you can redistribute it and/or modify it |
| 7 | under the terms and conditions of the GNU General Public License, |
| 8 | version 2, as published by the Free Software Foundation. |
| 9 | |
| 10 | This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License along with |
| 16 | this program; if not, write to the Free Software Foundation, Inc., |
| 17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | |
| 19 | The full GNU General Public License is included in this distribution in |
| 20 | the file called "COPYING". |
| 21 | |
| 22 | Contact Information: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| 24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 25 | |
| 26 | *******************************************************************************/ |
| 27 | |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/pci.h> |
| 31 | #include <linux/netdevice.h> |
| 32 | #include <linux/vmalloc.h> |
| 33 | #include <linux/string.h> |
| 34 | #include <linux/in.h> |
| 35 | #include <linux/ip.h> |
| 36 | #include <linux/tcp.h> |
Lucy Liu | 6012786 | 2009-07-22 14:07:33 +0000 | [diff] [blame] | 37 | #include <linux/pkt_sched.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 38 | #include <linux/ipv6.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 39 | #include <linux/slab.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 40 | #include <net/checksum.h> |
| 41 | #include <net/ip6_checksum.h> |
| 42 | #include <linux/ethtool.h> |
| 43 | #include <linux/if_vlan.h> |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 44 | #include <scsi/fc/fc_fcoe.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 45 | |
| 46 | #include "ixgbe.h" |
| 47 | #include "ixgbe_common.h" |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 48 | #include "ixgbe_dcb_82599.h" |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 49 | #include "ixgbe_sriov.h" |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 50 | |
| 51 | char ixgbe_driver_name[] = "ixgbe"; |
Stephen Hemminger | 9c8eb72 | 2007-10-29 10:46:24 -0700 | [diff] [blame] | 52 | static const char ixgbe_driver_string[] = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 53 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 54 | |
Don Skidmore | 99faf68 | 2010-07-19 14:00:47 +0000 | [diff] [blame] | 55 | #define DRV_VERSION "2.0.84-k2" |
Stephen Hemminger | 9c8eb72 | 2007-10-29 10:46:24 -0700 | [diff] [blame] | 56 | const char ixgbe_driver_version[] = DRV_VERSION; |
Shannon Nelson | 8c47eaa | 2010-01-13 01:49:34 +0000 | [diff] [blame] | 57 | static char ixgbe_copyright[] = "Copyright (c) 1999-2010 Intel Corporation."; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 58 | |
| 59 | static const struct ixgbe_info *ixgbe_info_tbl[] = { |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 60 | [board_82598] = &ixgbe_82598_info, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 61 | [board_82599] = &ixgbe_82599_info, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 62 | }; |
| 63 | |
| 64 | /* ixgbe_pci_tbl - PCI Device ID Table |
| 65 | * |
| 66 | * Wildcard entries (PCI_ANY_ID) should come last |
| 67 | * Last entry must be all 0s |
| 68 | * |
| 69 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, |
| 70 | * Class, Class Mask, private data (not used) } |
| 71 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 72 | static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { |
Don Skidmore | 1e336d0 | 2009-01-26 20:57:51 -0800 | [diff] [blame] | 73 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), |
| 74 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 75 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 76 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 77 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 78 | board_82598 }, |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 79 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), |
| 80 | board_82598 }, |
Peter P Waskiewicz Jr | 3845bec | 2009-07-16 15:50:52 +0000 | [diff] [blame] | 81 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), |
| 82 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 83 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 84 | board_82598 }, |
Jesse Brandeburg | 8d792cd | 2008-08-08 16:24:19 -0700 | [diff] [blame] | 85 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), |
| 86 | board_82598 }, |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 87 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), |
| 88 | board_82598 }, |
| 89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), |
| 90 | board_82598 }, |
Jesse Brandeburg | b95f5fc | 2008-09-11 19:58:59 -0700 | [diff] [blame] | 91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), |
| 92 | board_82598 }, |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), |
| 94 | board_82598 }, |
Don Skidmore | 2f21bdd | 2009-02-01 01:18:23 -0800 | [diff] [blame] | 95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), |
| 96 | board_82598 }, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), |
| 98 | board_82599 }, |
Peter P Waskiewicz Jr | 1fcf03e | 2009-05-17 20:58:04 +0000 | [diff] [blame] | 99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), |
| 100 | board_82599 }, |
Don Skidmore | 74757d4 | 2009-12-08 07:22:23 +0000 | [diff] [blame] | 101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), |
| 102 | board_82599 }, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), |
| 104 | board_82599 }, |
Don Skidmore | 38ad1c8 | 2009-10-08 15:35:58 +0000 | [diff] [blame] | 105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), |
| 106 | board_82599 }, |
Don Skidmore | dbfec66 | 2009-10-02 08:58:25 +0000 | [diff] [blame] | 107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), |
| 108 | board_82599 }, |
Peter P Waskiewicz Jr | 8911184 | 2009-09-14 07:47:49 +0000 | [diff] [blame] | 109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), |
| 110 | board_82599 }, |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), |
| 112 | board_82599 }, |
Don Skidmore | 312eb93 | 2009-10-02 08:58:04 +0000 | [diff] [blame] | 113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), |
| 114 | board_82599 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 115 | |
| 116 | /* required last entry */ |
| 117 | {0, } |
| 118 | }; |
| 119 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); |
| 120 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 121 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 122 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 123 | void *p); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 124 | static struct notifier_block dca_notifier = { |
| 125 | .notifier_call = ixgbe_notify_dca, |
| 126 | .next = NULL, |
| 127 | .priority = 0 |
| 128 | }; |
| 129 | #endif |
| 130 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 131 | #ifdef CONFIG_PCI_IOV |
| 132 | static unsigned int max_vfs; |
| 133 | module_param(max_vfs, uint, 0); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 134 | MODULE_PARM_DESC(max_vfs, |
| 135 | "Maximum number of virtual functions to allocate per physical function"); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 136 | #endif /* CONFIG_PCI_IOV */ |
| 137 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 138 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
| 139 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); |
| 140 | MODULE_LICENSE("GPL"); |
| 141 | MODULE_VERSION(DRV_VERSION); |
| 142 | |
| 143 | #define DEFAULT_DEBUG_LEVEL_SHIFT 3 |
| 144 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 145 | static inline void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
| 146 | { |
| 147 | struct ixgbe_hw *hw = &adapter->hw; |
| 148 | u32 gcr; |
| 149 | u32 gpie; |
| 150 | u32 vmdctl; |
| 151 | |
| 152 | #ifdef CONFIG_PCI_IOV |
| 153 | /* disable iov and allow time for transactions to clear */ |
| 154 | pci_disable_sriov(adapter->pdev); |
| 155 | #endif |
| 156 | |
| 157 | /* turn off device IOV mode */ |
| 158 | gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); |
| 159 | gcr &= ~(IXGBE_GCR_EXT_SRIOV); |
| 160 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr); |
| 161 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); |
| 162 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; |
| 163 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); |
| 164 | |
| 165 | /* set default pool back to 0 */ |
| 166 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); |
| 167 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; |
| 168 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); |
| 169 | |
| 170 | /* take a breather then clean up driver data */ |
| 171 | msleep(100); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 172 | |
| 173 | kfree(adapter->vfinfo); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 174 | adapter->vfinfo = NULL; |
| 175 | |
| 176 | adapter->num_vfs = 0; |
| 177 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
| 178 | } |
| 179 | |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 180 | struct ixgbe_reg_info { |
| 181 | u32 ofs; |
| 182 | char *name; |
| 183 | }; |
| 184 | |
| 185 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { |
| 186 | |
| 187 | /* General Registers */ |
| 188 | {IXGBE_CTRL, "CTRL"}, |
| 189 | {IXGBE_STATUS, "STATUS"}, |
| 190 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, |
| 191 | |
| 192 | /* Interrupt Registers */ |
| 193 | {IXGBE_EICR, "EICR"}, |
| 194 | |
| 195 | /* RX Registers */ |
| 196 | {IXGBE_SRRCTL(0), "SRRCTL"}, |
| 197 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, |
| 198 | {IXGBE_RDLEN(0), "RDLEN"}, |
| 199 | {IXGBE_RDH(0), "RDH"}, |
| 200 | {IXGBE_RDT(0), "RDT"}, |
| 201 | {IXGBE_RXDCTL(0), "RXDCTL"}, |
| 202 | {IXGBE_RDBAL(0), "RDBAL"}, |
| 203 | {IXGBE_RDBAH(0), "RDBAH"}, |
| 204 | |
| 205 | /* TX Registers */ |
| 206 | {IXGBE_TDBAL(0), "TDBAL"}, |
| 207 | {IXGBE_TDBAH(0), "TDBAH"}, |
| 208 | {IXGBE_TDLEN(0), "TDLEN"}, |
| 209 | {IXGBE_TDH(0), "TDH"}, |
| 210 | {IXGBE_TDT(0), "TDT"}, |
| 211 | {IXGBE_TXDCTL(0), "TXDCTL"}, |
| 212 | |
| 213 | /* List Terminator */ |
| 214 | {} |
| 215 | }; |
| 216 | |
| 217 | |
| 218 | /* |
| 219 | * ixgbe_regdump - register printout routine |
| 220 | */ |
| 221 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) |
| 222 | { |
| 223 | int i = 0, j = 0; |
| 224 | char rname[16]; |
| 225 | u32 regs[64]; |
| 226 | |
| 227 | switch (reginfo->ofs) { |
| 228 | case IXGBE_SRRCTL(0): |
| 229 | for (i = 0; i < 64; i++) |
| 230 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); |
| 231 | break; |
| 232 | case IXGBE_DCA_RXCTRL(0): |
| 233 | for (i = 0; i < 64; i++) |
| 234 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); |
| 235 | break; |
| 236 | case IXGBE_RDLEN(0): |
| 237 | for (i = 0; i < 64; i++) |
| 238 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); |
| 239 | break; |
| 240 | case IXGBE_RDH(0): |
| 241 | for (i = 0; i < 64; i++) |
| 242 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); |
| 243 | break; |
| 244 | case IXGBE_RDT(0): |
| 245 | for (i = 0; i < 64; i++) |
| 246 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); |
| 247 | break; |
| 248 | case IXGBE_RXDCTL(0): |
| 249 | for (i = 0; i < 64; i++) |
| 250 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); |
| 251 | break; |
| 252 | case IXGBE_RDBAL(0): |
| 253 | for (i = 0; i < 64; i++) |
| 254 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); |
| 255 | break; |
| 256 | case IXGBE_RDBAH(0): |
| 257 | for (i = 0; i < 64; i++) |
| 258 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); |
| 259 | break; |
| 260 | case IXGBE_TDBAL(0): |
| 261 | for (i = 0; i < 64; i++) |
| 262 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); |
| 263 | break; |
| 264 | case IXGBE_TDBAH(0): |
| 265 | for (i = 0; i < 64; i++) |
| 266 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); |
| 267 | break; |
| 268 | case IXGBE_TDLEN(0): |
| 269 | for (i = 0; i < 64; i++) |
| 270 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); |
| 271 | break; |
| 272 | case IXGBE_TDH(0): |
| 273 | for (i = 0; i < 64; i++) |
| 274 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); |
| 275 | break; |
| 276 | case IXGBE_TDT(0): |
| 277 | for (i = 0; i < 64; i++) |
| 278 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); |
| 279 | break; |
| 280 | case IXGBE_TXDCTL(0): |
| 281 | for (i = 0; i < 64; i++) |
| 282 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); |
| 283 | break; |
| 284 | default: |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 285 | pr_info("%-15s %08x\n", reginfo->name, |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 286 | IXGBE_READ_REG(hw, reginfo->ofs)); |
| 287 | return; |
| 288 | } |
| 289 | |
| 290 | for (i = 0; i < 8; i++) { |
| 291 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 292 | pr_err("%-15s", rname); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 293 | for (j = 0; j < 8; j++) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 294 | pr_cont(" %08x", regs[i*8+j]); |
| 295 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * ixgbe_dump - Print registers, tx-rings and rx-rings |
| 302 | */ |
| 303 | static void ixgbe_dump(struct ixgbe_adapter *adapter) |
| 304 | { |
| 305 | struct net_device *netdev = adapter->netdev; |
| 306 | struct ixgbe_hw *hw = &adapter->hw; |
| 307 | struct ixgbe_reg_info *reginfo; |
| 308 | int n = 0; |
| 309 | struct ixgbe_ring *tx_ring; |
| 310 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 311 | union ixgbe_adv_tx_desc *tx_desc; |
| 312 | struct my_u0 { u64 a; u64 b; } *u0; |
| 313 | struct ixgbe_ring *rx_ring; |
| 314 | union ixgbe_adv_rx_desc *rx_desc; |
| 315 | struct ixgbe_rx_buffer *rx_buffer_info; |
| 316 | u32 staterr; |
| 317 | int i = 0; |
| 318 | |
| 319 | if (!netif_msg_hw(adapter)) |
| 320 | return; |
| 321 | |
| 322 | /* Print netdevice Info */ |
| 323 | if (netdev) { |
| 324 | dev_info(&adapter->pdev->dev, "Net device Info\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 325 | pr_info("Device Name state " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 326 | "trans_start last_rx\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 327 | pr_info("%-15s %016lX %016lX %016lX\n", |
| 328 | netdev->name, |
| 329 | netdev->state, |
| 330 | netdev->trans_start, |
| 331 | netdev->last_rx); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | /* Print Registers */ |
| 335 | dev_info(&adapter->pdev->dev, "Register Dump\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 336 | pr_info(" Register Name Value\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 337 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
| 338 | reginfo->name; reginfo++) { |
| 339 | ixgbe_regdump(hw, reginfo); |
| 340 | } |
| 341 | |
| 342 | /* Print TX Ring Summary */ |
| 343 | if (!netdev || !netif_running(netdev)) |
| 344 | goto exit; |
| 345 | |
| 346 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 347 | pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 348 | for (n = 0; n < adapter->num_tx_queues; n++) { |
| 349 | tx_ring = adapter->tx_ring[n]; |
| 350 | tx_buffer_info = |
| 351 | &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 352 | pr_info(" %5d %5X %5X %016llX %04X %3X %016llX\n", |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 353 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
| 354 | (u64)tx_buffer_info->dma, |
| 355 | tx_buffer_info->length, |
| 356 | tx_buffer_info->next_to_watch, |
| 357 | (u64)tx_buffer_info->time_stamp); |
| 358 | } |
| 359 | |
| 360 | /* Print TX Rings */ |
| 361 | if (!netif_msg_tx_done(adapter)) |
| 362 | goto rx_ring_summary; |
| 363 | |
| 364 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); |
| 365 | |
| 366 | /* Transmit Descriptor Formats |
| 367 | * |
| 368 | * Advanced Transmit Descriptor |
| 369 | * +--------------------------------------------------------------+ |
| 370 | * 0 | Buffer Address [63:0] | |
| 371 | * +--------------------------------------------------------------+ |
| 372 | * 8 | PAYLEN | PORTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
| 373 | * +--------------------------------------------------------------+ |
| 374 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 |
| 375 | */ |
| 376 | |
| 377 | for (n = 0; n < adapter->num_tx_queues; n++) { |
| 378 | tx_ring = adapter->tx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 379 | pr_info("------------------------------------\n"); |
| 380 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); |
| 381 | pr_info("------------------------------------\n"); |
| 382 | pr_info("T [desc] [address 63:0 ] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 383 | "[PlPOIdStDDt Ln] [bi->dma ] " |
| 384 | "leng ntw timestamp bi->skb\n"); |
| 385 | |
| 386 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 387 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 388 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 389 | u0 = (struct my_u0 *)tx_desc; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 390 | pr_info("T [0x%03X] %016llX %016llX %016llX" |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 391 | " %04X %3X %016llX %p", i, |
| 392 | le64_to_cpu(u0->a), |
| 393 | le64_to_cpu(u0->b), |
| 394 | (u64)tx_buffer_info->dma, |
| 395 | tx_buffer_info->length, |
| 396 | tx_buffer_info->next_to_watch, |
| 397 | (u64)tx_buffer_info->time_stamp, |
| 398 | tx_buffer_info->skb); |
| 399 | if (i == tx_ring->next_to_use && |
| 400 | i == tx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 401 | pr_cont(" NTC/U\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 402 | else if (i == tx_ring->next_to_use) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 403 | pr_cont(" NTU\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 404 | else if (i == tx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 405 | pr_cont(" NTC\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 406 | else |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 407 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 408 | |
| 409 | if (netif_msg_pktdata(adapter) && |
| 410 | tx_buffer_info->dma != 0) |
| 411 | print_hex_dump(KERN_INFO, "", |
| 412 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 413 | phys_to_virt(tx_buffer_info->dma), |
| 414 | tx_buffer_info->length, true); |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | /* Print RX Rings Summary */ |
| 419 | rx_ring_summary: |
| 420 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 421 | pr_info("Queue [NTU] [NTC]\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 422 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 423 | rx_ring = adapter->rx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 424 | pr_info("%5d %5X %5X\n", |
| 425 | n, rx_ring->next_to_use, rx_ring->next_to_clean); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | /* Print RX Rings */ |
| 429 | if (!netif_msg_rx_status(adapter)) |
| 430 | goto exit; |
| 431 | |
| 432 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); |
| 433 | |
| 434 | /* Advanced Receive Descriptor (Read) Format |
| 435 | * 63 1 0 |
| 436 | * +-----------------------------------------------------+ |
| 437 | * 0 | Packet Buffer Address [63:1] |A0/NSE| |
| 438 | * +----------------------------------------------+------+ |
| 439 | * 8 | Header Buffer Address [63:1] | DD | |
| 440 | * +-----------------------------------------------------+ |
| 441 | * |
| 442 | * |
| 443 | * Advanced Receive Descriptor (Write-Back) Format |
| 444 | * |
| 445 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 |
| 446 | * +------------------------------------------------------+ |
| 447 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | |
| 448 | * | Checksum Ident | | | | Type | Type | |
| 449 | * +------------------------------------------------------+ |
| 450 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | |
| 451 | * +------------------------------------------------------+ |
| 452 | * 63 48 47 32 31 20 19 0 |
| 453 | */ |
| 454 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 455 | rx_ring = adapter->rx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 456 | pr_info("------------------------------------\n"); |
| 457 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); |
| 458 | pr_info("------------------------------------\n"); |
| 459 | pr_info("R [desc] [ PktBuf A0] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 460 | "[ HeadBuf DD] [bi->dma ] [bi->skb] " |
| 461 | "<-- Adv Rx Read format\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 462 | pr_info("RWB[desc] [PcsmIpSHl PtRs] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 463 | "[vl er S cks ln] ---------------- [bi->skb] " |
| 464 | "<-- Adv Rx Write-Back format\n"); |
| 465 | |
| 466 | for (i = 0; i < rx_ring->count; i++) { |
| 467 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 468 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 469 | u0 = (struct my_u0 *)rx_desc; |
| 470 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 471 | if (staterr & IXGBE_RXD_STAT_DD) { |
| 472 | /* Descriptor Done */ |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 473 | pr_info("RWB[0x%03X] %016llX " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 474 | "%016llX ---------------- %p", i, |
| 475 | le64_to_cpu(u0->a), |
| 476 | le64_to_cpu(u0->b), |
| 477 | rx_buffer_info->skb); |
| 478 | } else { |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 479 | pr_info("R [0x%03X] %016llX " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 480 | "%016llX %016llX %p", i, |
| 481 | le64_to_cpu(u0->a), |
| 482 | le64_to_cpu(u0->b), |
| 483 | (u64)rx_buffer_info->dma, |
| 484 | rx_buffer_info->skb); |
| 485 | |
| 486 | if (netif_msg_pktdata(adapter)) { |
| 487 | print_hex_dump(KERN_INFO, "", |
| 488 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 489 | phys_to_virt(rx_buffer_info->dma), |
| 490 | rx_ring->rx_buf_len, true); |
| 491 | |
| 492 | if (rx_ring->rx_buf_len |
| 493 | < IXGBE_RXBUFFER_2048) |
| 494 | print_hex_dump(KERN_INFO, "", |
| 495 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 496 | phys_to_virt( |
| 497 | rx_buffer_info->page_dma + |
| 498 | rx_buffer_info->page_offset |
| 499 | ), |
| 500 | PAGE_SIZE/2, true); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | if (i == rx_ring->next_to_use) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 505 | pr_cont(" NTU\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 506 | else if (i == rx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 507 | pr_cont(" NTC\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 508 | else |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 509 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 510 | |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | exit: |
| 515 | return; |
| 516 | } |
| 517 | |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 518 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
| 519 | { |
| 520 | u32 ctrl_ext; |
| 521 | |
| 522 | /* Let firmware take over control of h/w */ |
| 523 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); |
| 524 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 525 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) |
| 529 | { |
| 530 | u32 ctrl_ext; |
| 531 | |
| 532 | /* Let firmware know the driver has taken over */ |
| 533 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); |
| 534 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 535 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 536 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 537 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 538 | /* |
| 539 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
| 540 | * @adapter: pointer to adapter struct |
| 541 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes |
| 542 | * @queue: queue to map the corresponding interrupt to |
| 543 | * @msix_vector: the vector to map to the corresponding queue |
| 544 | * |
| 545 | */ |
| 546 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 547 | u8 queue, u8 msix_vector) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 548 | { |
| 549 | u32 ivar, index; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 550 | struct ixgbe_hw *hw = &adapter->hw; |
| 551 | switch (hw->mac.type) { |
| 552 | case ixgbe_mac_82598EB: |
| 553 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 554 | if (direction == -1) |
| 555 | direction = 0; |
| 556 | index = (((direction * 64) + queue) >> 2) & 0x1F; |
| 557 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); |
| 558 | ivar &= ~(0xFF << (8 * (queue & 0x3))); |
| 559 | ivar |= (msix_vector << (8 * (queue & 0x3))); |
| 560 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); |
| 561 | break; |
| 562 | case ixgbe_mac_82599EB: |
| 563 | if (direction == -1) { |
| 564 | /* other causes */ |
| 565 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 566 | index = ((queue & 1) * 8); |
| 567 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); |
| 568 | ivar &= ~(0xFF << index); |
| 569 | ivar |= (msix_vector << index); |
| 570 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); |
| 571 | break; |
| 572 | } else { |
| 573 | /* tx or rx causes */ |
| 574 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 575 | index = ((16 * (queue & 1)) + (8 * direction)); |
| 576 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); |
| 577 | ivar &= ~(0xFF << index); |
| 578 | ivar |= (msix_vector << index); |
| 579 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); |
| 580 | break; |
| 581 | } |
| 582 | default: |
| 583 | break; |
| 584 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 585 | } |
| 586 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 587 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 588 | u64 qmask) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 589 | { |
| 590 | u32 mask; |
| 591 | |
| 592 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 593 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 594 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); |
| 595 | } else { |
| 596 | mask = (qmask & 0xFFFFFFFF); |
| 597 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); |
| 598 | mask = (qmask >> 32); |
| 599 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); |
| 600 | } |
| 601 | } |
| 602 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 603 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring, |
| 604 | struct ixgbe_tx_buffer *tx_buffer_info) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 605 | { |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 606 | if (tx_buffer_info->dma) { |
| 607 | if (tx_buffer_info->mapped_as_page) |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 608 | dma_unmap_page(tx_ring->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 609 | tx_buffer_info->dma, |
| 610 | tx_buffer_info->length, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 611 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 612 | else |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 613 | dma_unmap_single(tx_ring->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 614 | tx_buffer_info->dma, |
| 615 | tx_buffer_info->length, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 616 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 617 | tx_buffer_info->dma = 0; |
| 618 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 619 | if (tx_buffer_info->skb) { |
| 620 | dev_kfree_skb_any(tx_buffer_info->skb); |
| 621 | tx_buffer_info->skb = NULL; |
| 622 | } |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 623 | tx_buffer_info->time_stamp = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 624 | /* tx_buffer_info must be completely set up in the transmit path */ |
| 625 | } |
| 626 | |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 627 | /** |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 628 | * ixgbe_tx_xon_state - check the tx ring xon state |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 629 | * @adapter: the ixgbe adapter |
| 630 | * @tx_ring: the corresponding tx_ring |
| 631 | * |
| 632 | * If not in DCB mode, checks TFCS.TXOFF, otherwise, find out the |
| 633 | * corresponding TC of this tx_ring when checking TFCS. |
| 634 | * |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 635 | * Returns : true if in xon state (currently not paused) |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 636 | */ |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 637 | static inline bool ixgbe_tx_xon_state(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 638 | struct ixgbe_ring *tx_ring) |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 639 | { |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 640 | u32 txoff = IXGBE_TFCS_TXOFF; |
| 641 | |
| 642 | #ifdef CONFIG_IXGBE_DCB |
John Fastabend | ca73948 | 2010-06-03 17:03:45 +0000 | [diff] [blame] | 643 | if (adapter->dcb_cfg.pfc_mode_enable) { |
Jaswinder Singh Rajput | 30b76832 | 2009-11-20 04:02:27 +0000 | [diff] [blame] | 644 | int tc; |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 645 | int reg_idx = tx_ring->reg_idx; |
| 646 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; |
| 647 | |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 648 | switch (adapter->hw.mac.type) { |
| 649 | case ixgbe_mac_82598EB: |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 650 | tc = reg_idx >> 2; |
| 651 | txoff = IXGBE_TFCS_TXOFF0; |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 652 | break; |
| 653 | case ixgbe_mac_82599EB: |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 654 | tc = 0; |
| 655 | txoff = IXGBE_TFCS_TXOFF; |
| 656 | if (dcb_i == 8) { |
| 657 | /* TC0, TC1 */ |
| 658 | tc = reg_idx >> 5; |
| 659 | if (tc == 2) /* TC2, TC3 */ |
| 660 | tc += (reg_idx - 64) >> 4; |
| 661 | else if (tc == 3) /* TC4, TC5, TC6, TC7 */ |
| 662 | tc += 1 + ((reg_idx - 96) >> 3); |
| 663 | } else if (dcb_i == 4) { |
| 664 | /* TC0, TC1 */ |
| 665 | tc = reg_idx >> 6; |
| 666 | if (tc == 1) { |
| 667 | tc += (reg_idx - 64) >> 5; |
| 668 | if (tc == 2) /* TC2, TC3 */ |
| 669 | tc += (reg_idx - 96) >> 4; |
| 670 | } |
| 671 | } |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 672 | break; |
| 673 | default: |
| 674 | tc = 0; |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 675 | } |
| 676 | txoff <<= tc; |
| 677 | } |
| 678 | #endif |
| 679 | return IXGBE_READ_REG(&adapter->hw, IXGBE_TFCS) & txoff; |
| 680 | } |
| 681 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 682 | static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 683 | struct ixgbe_ring *tx_ring, |
| 684 | unsigned int eop) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 685 | { |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 686 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 687 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 688 | /* Detect a transmit hang in hardware, this serializes the |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 689 | * check with the clearing of time_stamp and movement of eop */ |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 690 | clear_check_for_tx_hang(tx_ring); |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 691 | if (tx_ring->tx_buffer_info[eop].time_stamp && |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 692 | time_after(jiffies, tx_ring->tx_buffer_info[eop].time_stamp + HZ) && |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 693 | ixgbe_tx_xon_state(adapter, tx_ring)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 694 | /* detected Tx unit hang */ |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 695 | union ixgbe_adv_tx_desc *tx_desc; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 696 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 697 | e_err(drv, "Detected Tx Unit Hang\n" |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 698 | " Tx Queue <%d>\n" |
| 699 | " TDH, TDT <%x>, <%x>\n" |
| 700 | " next_to_use <%x>\n" |
| 701 | " next_to_clean <%x>\n" |
| 702 | "tx_buffer_info[next_to_clean]\n" |
| 703 | " time_stamp <%lx>\n" |
| 704 | " jiffies <%lx>\n", |
| 705 | tx_ring->queue_index, |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 706 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), |
| 707 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 708 | tx_ring->next_to_use, eop, |
| 709 | tx_ring->tx_buffer_info[eop].time_stamp, jiffies); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 710 | return true; |
| 711 | } |
| 712 | |
| 713 | return false; |
| 714 | } |
| 715 | |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 716 | #define IXGBE_MAX_TXD_PWR 14 |
| 717 | #define IXGBE_MAX_DATA_PER_TXD (1 << IXGBE_MAX_TXD_PWR) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 718 | |
| 719 | /* Tx Descriptors needed, worst case */ |
| 720 | #define TXD_USE_COUNT(S) (((S) >> IXGBE_MAX_TXD_PWR) + \ |
| 721 | (((S) & (IXGBE_MAX_DATA_PER_TXD - 1)) ? 1 : 0)) |
| 722 | #define DESC_NEEDED (TXD_USE_COUNT(IXGBE_MAX_DATA_PER_TXD) /* skb->data */ + \ |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 723 | MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1) /* for context */ |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 724 | |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 725 | static void ixgbe_tx_timeout(struct net_device *netdev); |
| 726 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 727 | /** |
| 728 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 729 | * @q_vector: structure containing interrupt and ring information |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 730 | * @tx_ring: tx ring to clean |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 731 | **/ |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 732 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 733 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 734 | { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 735 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 736 | union ixgbe_adv_tx_desc *tx_desc, *eop_desc; |
| 737 | struct ixgbe_tx_buffer *tx_buffer_info; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 738 | unsigned int total_bytes = 0, total_packets = 0; |
Alexander Duyck | b953799 | 2010-11-16 19:26:58 -0800 | [diff] [blame] | 739 | u16 i, eop, count = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 740 | |
| 741 | i = tx_ring->next_to_clean; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 742 | eop = tx_ring->tx_buffer_info[i].next_to_watch; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 743 | eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 744 | |
| 745 | while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) && |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 746 | (count < tx_ring->work_limit)) { |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 747 | bool cleaned = false; |
Jeff Kirsher | 2d0bb1c | 2010-08-08 16:02:31 +0000 | [diff] [blame] | 748 | rmb(); /* read buffer_info after eop_desc */ |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 749 | for ( ; !cleaned; count++) { |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 750 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 751 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 752 | |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 753 | tx_desc->wb.status = 0; |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 754 | cleaned = (i == eop); |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 755 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 756 | i++; |
| 757 | if (i == tx_ring->count) |
| 758 | i = 0; |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 759 | |
| 760 | if (cleaned && tx_buffer_info->skb) { |
| 761 | total_bytes += tx_buffer_info->bytecount; |
| 762 | total_packets += tx_buffer_info->gso_segs; |
| 763 | } |
| 764 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 765 | ixgbe_unmap_and_free_tx_resource(tx_ring, |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 766 | tx_buffer_info); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 767 | } |
| 768 | |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 769 | eop = tx_ring->tx_buffer_info[i].next_to_watch; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 770 | eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 771 | } |
| 772 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 773 | tx_ring->next_to_clean = i; |
Alexander Duyck | b953799 | 2010-11-16 19:26:58 -0800 | [diff] [blame] | 774 | tx_ring->total_bytes += total_bytes; |
| 775 | tx_ring->total_packets += total_packets; |
| 776 | u64_stats_update_begin(&tx_ring->syncp); |
| 777 | tx_ring->stats.packets += total_packets; |
| 778 | tx_ring->stats.bytes += total_bytes; |
| 779 | u64_stats_update_end(&tx_ring->syncp); |
| 780 | |
| 781 | if (check_for_tx_hang(tx_ring) && |
| 782 | ixgbe_check_tx_hang(adapter, tx_ring, i)) { |
| 783 | /* schedule immediate reset if we believe we hung */ |
| 784 | e_info(probe, "tx hang %d detected, resetting " |
| 785 | "adapter\n", adapter->tx_timeout_count + 1); |
| 786 | ixgbe_tx_timeout(adapter->netdev); |
| 787 | |
| 788 | /* the adapter is about to reset, no point in enabling stuff */ |
| 789 | return true; |
| 790 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 791 | |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 792 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 793 | if (unlikely(count && netif_carrier_ok(tx_ring->netdev) && |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 794 | (IXGBE_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) { |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 795 | /* Make sure that anybody stopping the queue after this |
| 796 | * sees the new next_to_clean. |
| 797 | */ |
| 798 | smp_mb(); |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 799 | if (__netif_subqueue_stopped(tx_ring->netdev, tx_ring->queue_index) && |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 800 | !test_bit(__IXGBE_DOWN, &adapter->state)) { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 801 | netif_wake_subqueue(tx_ring->netdev, tx_ring->queue_index); |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 802 | ++tx_ring->tx_stats.restart_queue; |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 803 | } |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 804 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 805 | |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 806 | return count < tx_ring->work_limit; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 807 | } |
| 808 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 809 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 810 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 811 | struct ixgbe_ring *rx_ring, |
| 812 | int cpu) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 813 | { |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 814 | struct ixgbe_hw *hw = &adapter->hw; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 815 | u32 rxctrl; |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 816 | u8 reg_idx = rx_ring->reg_idx; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 817 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 818 | rxctrl = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(reg_idx)); |
| 819 | switch (hw->mac.type) { |
| 820 | case ixgbe_mac_82598EB: |
| 821 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; |
| 822 | rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
| 823 | break; |
| 824 | case ixgbe_mac_82599EB: |
| 825 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599; |
| 826 | rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << |
| 827 | IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599); |
| 828 | break; |
| 829 | default: |
| 830 | break; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 831 | } |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 832 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
| 833 | rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; |
| 834 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); |
| 835 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | |
| 836 | IXGBE_DCA_RXCTRL_DESC_HSRO_EN); |
| 837 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 838 | } |
| 839 | |
| 840 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 841 | struct ixgbe_ring *tx_ring, |
| 842 | int cpu) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 843 | { |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 844 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 845 | u32 txctrl; |
| 846 | u8 reg_idx = tx_ring->reg_idx; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 847 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 848 | switch (hw->mac.type) { |
| 849 | case ixgbe_mac_82598EB: |
| 850 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(reg_idx)); |
| 851 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; |
| 852 | txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
| 853 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
| 854 | txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; |
| 855 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(reg_idx), txctrl); |
| 856 | break; |
| 857 | case ixgbe_mac_82599EB: |
| 858 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx)); |
| 859 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599; |
| 860 | txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << |
| 861 | IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); |
| 862 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
| 863 | txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; |
| 864 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx), txctrl); |
| 865 | break; |
| 866 | default: |
| 867 | break; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 868 | } |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 869 | } |
| 870 | |
| 871 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) |
| 872 | { |
| 873 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 874 | int cpu = get_cpu(); |
| 875 | long r_idx; |
| 876 | int i; |
| 877 | |
| 878 | if (q_vector->cpu == cpu) |
| 879 | goto out_no_update; |
| 880 | |
| 881 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 882 | for (i = 0; i < q_vector->txr_count; i++) { |
| 883 | ixgbe_update_tx_dca(adapter, adapter->tx_ring[r_idx], cpu); |
| 884 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
| 885 | r_idx + 1); |
| 886 | } |
| 887 | |
| 888 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 889 | for (i = 0; i < q_vector->rxr_count; i++) { |
| 890 | ixgbe_update_rx_dca(adapter, adapter->rx_ring[r_idx], cpu); |
| 891 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
| 892 | r_idx + 1); |
| 893 | } |
| 894 | |
| 895 | q_vector->cpu = cpu; |
| 896 | out_no_update: |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 897 | put_cpu(); |
| 898 | } |
| 899 | |
| 900 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) |
| 901 | { |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 902 | int num_q_vectors; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 903 | int i; |
| 904 | |
| 905 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) |
| 906 | return; |
| 907 | |
Alexander Duyck | e35ec12 | 2009-05-21 13:07:12 +0000 | [diff] [blame] | 908 | /* always use CB2 mode, difference is masked in the CB driver */ |
| 909 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); |
| 910 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 911 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
| 912 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 913 | else |
| 914 | num_q_vectors = 1; |
| 915 | |
| 916 | for (i = 0; i < num_q_vectors; i++) { |
| 917 | adapter->q_vector[i]->cpu = -1; |
| 918 | ixgbe_update_dca(adapter->q_vector[i]); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 919 | } |
| 920 | } |
| 921 | |
| 922 | static int __ixgbe_notify_dca(struct device *dev, void *data) |
| 923 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 924 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 925 | unsigned long event = *(unsigned long *)data; |
| 926 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 927 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) |
| 928 | return 0; |
| 929 | |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 930 | switch (event) { |
| 931 | case DCA_PROVIDER_ADD: |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 932 | /* if we're already enabled, don't do it again */ |
| 933 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 934 | break; |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 935 | if (dca_add_requester(dev) == 0) { |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 936 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 937 | ixgbe_setup_dca(adapter); |
| 938 | break; |
| 939 | } |
| 940 | /* Fall Through since DCA is disabled. */ |
| 941 | case DCA_PROVIDER_REMOVE: |
| 942 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
| 943 | dca_remove_requester(dev); |
| 944 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; |
| 945 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); |
| 946 | } |
| 947 | break; |
| 948 | } |
| 949 | |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 950 | return 0; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 951 | } |
| 952 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 953 | #endif /* CONFIG_IXGBE_DCA */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 954 | /** |
| 955 | * ixgbe_receive_skb - Send a completed packet up the stack |
| 956 | * @adapter: board private structure |
| 957 | * @skb: packet to send up |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 958 | * @status: hardware indication of status of receive |
| 959 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
| 960 | * @rx_desc: rx descriptor |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 961 | **/ |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 962 | static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 963 | struct sk_buff *skb, u8 status, |
| 964 | struct ixgbe_ring *ring, |
| 965 | union ixgbe_adv_rx_desc *rx_desc) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 966 | { |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 967 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 968 | struct napi_struct *napi = &q_vector->napi; |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 969 | bool is_vlan = (status & IXGBE_RXD_STAT_VP); |
| 970 | u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 971 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 972 | if (is_vlan && (tag & VLAN_VID_MASK)) |
| 973 | __vlan_hwaccel_put_tag(skb, tag); |
| 974 | |
| 975 | if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) |
| 976 | napi_gro_receive(napi, skb); |
| 977 | else |
| 978 | netif_rx(skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 979 | } |
| 980 | |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 981 | /** |
| 982 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum |
| 983 | * @adapter: address of board private structure |
| 984 | * @status_err: hardware indication of status of receive |
| 985 | * @skb: skb currently being received and modified |
| 986 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 987 | static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter, |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 988 | union ixgbe_adv_rx_desc *rx_desc, |
| 989 | struct sk_buff *skb) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 990 | { |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 991 | u32 status_err = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 992 | |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 993 | skb_checksum_none_assert(skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 994 | |
Jesse Brandeburg | 712744b | 2008-08-26 04:26:56 -0700 | [diff] [blame] | 995 | /* Rx csum disabled */ |
| 996 | if (!(adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 997 | return; |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 998 | |
| 999 | /* if IP and error */ |
| 1000 | if ((status_err & IXGBE_RXD_STAT_IPCS) && |
| 1001 | (status_err & IXGBE_RXDADV_ERR_IPE)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1002 | adapter->hw_csum_rx_error++; |
| 1003 | return; |
| 1004 | } |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 1005 | |
| 1006 | if (!(status_err & IXGBE_RXD_STAT_L4CS)) |
| 1007 | return; |
| 1008 | |
| 1009 | if (status_err & IXGBE_RXDADV_ERR_TCPE) { |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 1010 | u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
| 1011 | |
| 1012 | /* |
| 1013 | * 82599 errata, UDP frames with a 0 checksum can be marked as |
| 1014 | * checksum errors. |
| 1015 | */ |
| 1016 | if ((pkt_info & IXGBE_RXDADV_PKTTYPE_UDP) && |
| 1017 | (adapter->hw.mac.type == ixgbe_mac_82599EB)) |
| 1018 | return; |
| 1019 | |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 1020 | adapter->hw_csum_rx_error++; |
| 1021 | return; |
| 1022 | } |
| 1023 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1024 | /* It must be a TCP or UDP packet with a valid checksum */ |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 1025 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1028 | static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1029 | { |
| 1030 | /* |
| 1031 | * Force memory writes to complete before letting h/w |
| 1032 | * know there are new descriptors to fetch. (Only |
| 1033 | * applicable for weak-ordered memory model archs, |
| 1034 | * such as IA-64). |
| 1035 | */ |
| 1036 | wmb(); |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1037 | writel(val, rx_ring->tail); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1040 | /** |
| 1041 | * ixgbe_alloc_rx_buffers - Replace used receive buffers; packet split |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1042 | * @rx_ring: ring to place buffers on |
| 1043 | * @cleaned_count: number of buffers to replace |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1044 | **/ |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1045 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1046 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1047 | union ixgbe_adv_rx_desc *rx_desc; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1048 | struct ixgbe_rx_buffer *bi; |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1049 | struct sk_buff *skb; |
| 1050 | u16 i = rx_ring->next_to_use; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1051 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1052 | /* do nothing if no valid netdev defined */ |
| 1053 | if (!rx_ring->netdev) |
| 1054 | return; |
| 1055 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1056 | while (cleaned_count--) { |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1057 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1058 | bi = &rx_ring->rx_buffer_info[i]; |
| 1059 | skb = bi->skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1060 | |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1061 | if (!skb) { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1062 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1063 | rx_ring->rx_buf_len); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1064 | if (!skb) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 1065 | rx_ring->rx_stats.alloc_rx_buff_failed++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1066 | goto no_buffers; |
| 1067 | } |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1068 | /* initialize queue mapping */ |
| 1069 | skb_record_rx_queue(skb, rx_ring->queue_index); |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1070 | bi->skb = skb; |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1071 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1072 | |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1073 | if (!bi->dma) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1074 | bi->dma = dma_map_single(rx_ring->dev, |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1075 | skb->data, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1076 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1077 | DMA_FROM_DEVICE); |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1078 | if (dma_mapping_error(rx_ring->dev, bi->dma)) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 1079 | rx_ring->rx_stats.alloc_rx_buff_failed++; |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1080 | bi->dma = 0; |
| 1081 | goto no_buffers; |
| 1082 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1083 | } |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1084 | |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 1085 | if (ring_is_ps_enabled(rx_ring)) { |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1086 | if (!bi->page) { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1087 | bi->page = netdev_alloc_page(rx_ring->netdev); |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1088 | if (!bi->page) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 1089 | rx_ring->rx_stats.alloc_rx_page_failed++; |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1090 | goto no_buffers; |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | if (!bi->page_dma) { |
| 1095 | /* use a half page if we're re-using */ |
| 1096 | bi->page_offset ^= PAGE_SIZE / 2; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1097 | bi->page_dma = dma_map_page(rx_ring->dev, |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1098 | bi->page, |
| 1099 | bi->page_offset, |
| 1100 | PAGE_SIZE / 2, |
| 1101 | DMA_FROM_DEVICE); |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1102 | if (dma_mapping_error(rx_ring->dev, |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1103 | bi->page_dma)) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 1104 | rx_ring->rx_stats.alloc_rx_page_failed++; |
Alexander Duyck | d5f398e | 2010-11-16 19:26:48 -0800 | [diff] [blame] | 1105 | bi->page_dma = 0; |
| 1106 | goto no_buffers; |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | /* Refresh the desc even if buffer_addrs didn't change |
| 1111 | * because each write-back erases this info. */ |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1112 | rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma); |
| 1113 | rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1114 | } else { |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1115 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma); |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 1116 | rx_desc->read.hdr_addr = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1117 | } |
| 1118 | |
| 1119 | i++; |
| 1120 | if (i == rx_ring->count) |
| 1121 | i = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1122 | } |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1123 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1124 | no_buffers: |
| 1125 | if (rx_ring->next_to_use != i) { |
| 1126 | rx_ring->next_to_use = i; |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1127 | ixgbe_release_rx_desc(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1128 | } |
| 1129 | } |
| 1130 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1131 | static inline u16 ixgbe_get_hlen(union ixgbe_adv_rx_desc *rx_desc) |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1132 | { |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1133 | /* HW will not DMA in data larger than the given buffer, even if it |
| 1134 | * parses the (NFS, of course) header to be larger. In that case, it |
| 1135 | * fills the header buffer and spills the rest into the page. |
| 1136 | */ |
| 1137 | u16 hdr_info = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.hdr_info); |
| 1138 | u16 hlen = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >> |
| 1139 | IXGBE_RXDADV_HDRBUFLEN_SHIFT; |
| 1140 | if (hlen > IXGBE_RX_HDR_SIZE) |
| 1141 | hlen = IXGBE_RX_HDR_SIZE; |
| 1142 | return hlen; |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1143 | } |
| 1144 | |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1145 | static inline u32 ixgbe_get_rsc_count(union ixgbe_adv_rx_desc *rx_desc) |
| 1146 | { |
| 1147 | return (le32_to_cpu(rx_desc->wb.lower.lo_dword.data) & |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1148 | IXGBE_RXDADV_RSCCNT_MASK) >> |
| 1149 | IXGBE_RXDADV_RSCCNT_SHIFT; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1150 | } |
| 1151 | |
| 1152 | /** |
| 1153 | * ixgbe_transform_rsc_queue - change rsc queue into a full packet |
| 1154 | * @skb: pointer to the last skb in the rsc queue |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1155 | * @count: pointer to number of packets coalesced in this context |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1156 | * |
| 1157 | * This function changes a queue full of hw rsc buffers into a completed |
| 1158 | * packet. It uses the ->prev pointers to find the first packet and then |
| 1159 | * turns it into the frag list owner. |
| 1160 | **/ |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1161 | static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1162 | u64 *count) |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1163 | { |
| 1164 | unsigned int frag_list_size = 0; |
| 1165 | |
| 1166 | while (skb->prev) { |
| 1167 | struct sk_buff *prev = skb->prev; |
| 1168 | frag_list_size += skb->len; |
| 1169 | skb->prev = NULL; |
| 1170 | skb = prev; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1171 | *count += 1; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1172 | } |
| 1173 | |
| 1174 | skb_shinfo(skb)->frag_list = skb->next; |
| 1175 | skb->next = NULL; |
| 1176 | skb->len += frag_list_size; |
| 1177 | skb->data_len += frag_list_size; |
| 1178 | skb->truesize += frag_list_size; |
| 1179 | return skb; |
| 1180 | } |
| 1181 | |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1182 | struct ixgbe_rsc_cb { |
| 1183 | dma_addr_t dma; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1184 | bool delay_unmap; |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1185 | }; |
| 1186 | |
| 1187 | #define IXGBE_RSC_CB(skb) ((struct ixgbe_rsc_cb *)(skb)->cb) |
| 1188 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1189 | static void ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1190 | struct ixgbe_ring *rx_ring, |
| 1191 | int *work_done, int work_to_do) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1192 | { |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 1193 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1194 | union ixgbe_adv_rx_desc *rx_desc, *next_rxd; |
| 1195 | struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer; |
| 1196 | struct sk_buff *skb; |
Ayyappan Veeraiyan | d2f4fbe | 2008-02-01 15:59:19 -0800 | [diff] [blame] | 1197 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1198 | const int current_node = numa_node_id(); |
| 1199 | unsigned int rsc_count = 0; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1200 | #ifdef IXGBE_FCOE |
| 1201 | int ddp_bytes = 0; |
| 1202 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1203 | u32 staterr; |
| 1204 | u16 i; |
| 1205 | u16 cleaned_count = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1206 | |
| 1207 | i = rx_ring->next_to_clean; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1208 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1209 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1210 | |
| 1211 | while (staterr & IXGBE_RXD_STAT_DD) { |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1212 | u32 upper_len = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1213 | |
Milton Miller | 3c945e5 | 2010-02-19 17:44:42 +0000 | [diff] [blame] | 1214 | rmb(); /* read descriptor and rx_buffer_info after status DD */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1215 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1216 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
| 1217 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1218 | skb = rx_buffer_info->skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1219 | rx_buffer_info->skb = NULL; |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1220 | prefetch(skb->data); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1221 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1222 | if (ring_is_rsc_enabled(rx_ring)) |
| 1223 | rsc_count = ixgbe_get_rsc_count(rx_desc); |
| 1224 | |
| 1225 | /* if this is a skb from previous receive DMA will be 0 */ |
Alexander Duyck | 21fa4e6 | 2009-06-04 15:59:49 +0000 | [diff] [blame] | 1226 | if (rx_buffer_info->dma) { |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1227 | u16 hlen; |
| 1228 | if (rsc_count && |
| 1229 | !(staterr & IXGBE_RXD_STAT_EOP) && |
| 1230 | !skb->prev) { |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1231 | /* |
| 1232 | * When HWRSC is enabled, delay unmapping |
| 1233 | * of the first packet. It carries the |
| 1234 | * header information, HW may still |
| 1235 | * access the header after the writeback. |
| 1236 | * Only unmap it when EOP is reached |
| 1237 | */ |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1238 | IXGBE_RSC_CB(skb)->delay_unmap = true; |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1239 | IXGBE_RSC_CB(skb)->dma = rx_buffer_info->dma; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1240 | } else { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1241 | dma_unmap_single(rx_ring->dev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1242 | rx_buffer_info->dma, |
| 1243 | rx_ring->rx_buf_len, |
| 1244 | DMA_FROM_DEVICE); |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1245 | } |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 1246 | rx_buffer_info->dma = 0; |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1247 | |
| 1248 | if (ring_is_ps_enabled(rx_ring)) { |
| 1249 | hlen = ixgbe_get_hlen(rx_desc); |
| 1250 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); |
| 1251 | } else { |
| 1252 | hlen = le16_to_cpu(rx_desc->wb.upper.length); |
| 1253 | } |
| 1254 | |
| 1255 | skb_put(skb, hlen); |
| 1256 | } else { |
| 1257 | /* assume packet split since header is unmapped */ |
| 1258 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1259 | } |
| 1260 | |
| 1261 | if (upper_len) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 1262 | dma_unmap_page(rx_ring->dev, |
| 1263 | rx_buffer_info->page_dma, |
| 1264 | PAGE_SIZE / 2, |
| 1265 | DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1266 | rx_buffer_info->page_dma = 0; |
| 1267 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1268 | rx_buffer_info->page, |
| 1269 | rx_buffer_info->page_offset, |
| 1270 | upper_len); |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1271 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1272 | if ((page_count(rx_buffer_info->page) == 1) && |
| 1273 | (page_to_nid(rx_buffer_info->page) == current_node)) |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1274 | get_page(rx_buffer_info->page); |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1275 | else |
| 1276 | rx_buffer_info->page = NULL; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1277 | |
| 1278 | skb->len += upper_len; |
| 1279 | skb->data_len += upper_len; |
| 1280 | skb->truesize += upper_len; |
| 1281 | } |
| 1282 | |
| 1283 | i++; |
| 1284 | if (i == rx_ring->count) |
| 1285 | i = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1286 | |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1287 | next_rxd = IXGBE_RX_DESC_ADV(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1288 | prefetch(next_rxd); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1289 | cleaned_count++; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1290 | |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1291 | if (rsc_count) { |
| 1292 | u32 nextp = (staterr & IXGBE_RXDADV_NEXTP_MASK) >> |
| 1293 | IXGBE_RXDADV_NEXTP_SHIFT; |
| 1294 | next_buffer = &rx_ring->rx_buffer_info[nextp]; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1295 | } else { |
| 1296 | next_buffer = &rx_ring->rx_buffer_info[i]; |
| 1297 | } |
| 1298 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1299 | if (!(staterr & IXGBE_RXD_STAT_EOP)) { |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 1300 | if (ring_is_ps_enabled(rx_ring)) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1301 | rx_buffer_info->skb = next_buffer->skb; |
| 1302 | rx_buffer_info->dma = next_buffer->dma; |
| 1303 | next_buffer->skb = skb; |
| 1304 | next_buffer->dma = 0; |
| 1305 | } else { |
| 1306 | skb->next = next_buffer->skb; |
| 1307 | skb->next->prev = skb; |
| 1308 | } |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 1309 | rx_ring->rx_stats.non_eop_descs++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1310 | goto next_desc; |
| 1311 | } |
| 1312 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1313 | if (skb->prev) |
| 1314 | skb = ixgbe_transform_rsc_queue(skb, |
| 1315 | &(rx_ring->rx_stats.rsc_count)); |
| 1316 | |
| 1317 | if (ring_is_rsc_enabled(rx_ring)) { |
| 1318 | if (IXGBE_RSC_CB(skb)->delay_unmap) { |
| 1319 | dma_unmap_single(rx_ring->dev, |
| 1320 | IXGBE_RSC_CB(skb)->dma, |
| 1321 | rx_ring->rx_buf_len, |
| 1322 | DMA_FROM_DEVICE); |
| 1323 | IXGBE_RSC_CB(skb)->dma = 0; |
| 1324 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
| 1325 | } |
| 1326 | if (ring_is_ps_enabled(rx_ring)) |
| 1327 | rx_ring->rx_stats.rsc_count += |
| 1328 | skb_shinfo(skb)->nr_frags; |
| 1329 | else |
| 1330 | rx_ring->rx_stats.rsc_count++; |
| 1331 | rx_ring->rx_stats.rsc_flush++; |
| 1332 | } |
| 1333 | |
| 1334 | /* ERR_MASK will only have valid bits if EOP set */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1335 | if (staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK) { |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1336 | /* trim packet back to size 0 and recycle it */ |
| 1337 | __pskb_trim(skb, 0); |
| 1338 | rx_buffer_info->skb = skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1339 | goto next_desc; |
| 1340 | } |
| 1341 | |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 1342 | ixgbe_rx_checksum(adapter, rx_desc, skb); |
Ayyappan Veeraiyan | d2f4fbe | 2008-02-01 15:59:19 -0800 | [diff] [blame] | 1343 | |
| 1344 | /* probably a little skewed due to removing CRC */ |
| 1345 | total_rx_bytes += skb->len; |
| 1346 | total_rx_packets++; |
| 1347 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1348 | skb->protocol = eth_type_trans(skb, rx_ring->netdev); |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1349 | #ifdef IXGBE_FCOE |
| 1350 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1351 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 1352 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
| 1353 | if (!ddp_bytes) |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1354 | goto next_desc; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1355 | } |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1356 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | fdaff1c | 2009-05-06 10:43:47 +0000 | [diff] [blame] | 1357 | ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1358 | |
| 1359 | next_desc: |
| 1360 | rx_desc->wb.upper.status_error = 0; |
| 1361 | |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1362 | (*work_done)++; |
| 1363 | if (*work_done >= work_to_do) |
| 1364 | break; |
| 1365 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1366 | /* return some buffers to hardware, one at a time is too slow */ |
| 1367 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1368 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1369 | cleaned_count = 0; |
| 1370 | } |
| 1371 | |
| 1372 | /* use prefetched values */ |
| 1373 | rx_desc = next_rxd; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1374 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 1375 | } |
| 1376 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1377 | rx_ring->next_to_clean = i; |
| 1378 | cleaned_count = IXGBE_DESC_UNUSED(rx_ring); |
| 1379 | |
| 1380 | if (cleaned_count) |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1381 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1382 | |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1383 | #ifdef IXGBE_FCOE |
| 1384 | /* include DDPed FCoE data */ |
| 1385 | if (ddp_bytes > 0) { |
| 1386 | unsigned int mss; |
| 1387 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 1388 | mss = rx_ring->netdev->mtu - sizeof(struct fcoe_hdr) - |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1389 | sizeof(struct fc_frame_header) - |
| 1390 | sizeof(struct fcoe_crc_eof); |
| 1391 | if (mss > 512) |
| 1392 | mss &= ~511; |
| 1393 | total_rx_bytes += ddp_bytes; |
| 1394 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss); |
| 1395 | } |
| 1396 | #endif /* IXGBE_FCOE */ |
| 1397 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1398 | rx_ring->total_packets += total_rx_packets; |
| 1399 | rx_ring->total_bytes += total_rx_bytes; |
Alexander Duyck | c267fc1 | 2010-11-16 19:27:00 -0800 | [diff] [blame] | 1400 | u64_stats_update_begin(&rx_ring->syncp); |
| 1401 | rx_ring->stats.packets += total_rx_packets; |
| 1402 | rx_ring->stats.bytes += total_rx_bytes; |
| 1403 | u64_stats_update_end(&rx_ring->syncp); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1404 | } |
| 1405 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1406 | static int ixgbe_clean_rxonly(struct napi_struct *, int); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1407 | /** |
| 1408 | * ixgbe_configure_msix - Configure MSI-X hardware |
| 1409 | * @adapter: board private structure |
| 1410 | * |
| 1411 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X |
| 1412 | * interrupts. |
| 1413 | **/ |
| 1414 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) |
| 1415 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1416 | struct ixgbe_q_vector *q_vector; |
| 1417 | int i, j, q_vectors, v_idx, r_idx; |
| 1418 | u32 mask; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1419 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1420 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 1421 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 1422 | /* |
| 1423 | * Populate the IVAR table and set the ITR values to the |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1424 | * corresponding register. |
| 1425 | */ |
| 1426 | for (v_idx = 0; v_idx < q_vectors; v_idx++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 1427 | q_vector = adapter->q_vector[v_idx]; |
Akinobu Mita | 984b3f5 | 2010-03-05 13:41:37 -0800 | [diff] [blame] | 1428 | /* XXX for_each_set_bit(...) */ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1429 | r_idx = find_first_bit(q_vector->rxr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1430 | adapter->num_rx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1431 | |
| 1432 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1433 | j = adapter->rx_ring[r_idx]->reg_idx; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1434 | ixgbe_set_ivar(adapter, 0, j, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1435 | r_idx = find_next_bit(q_vector->rxr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1436 | adapter->num_rx_queues, |
| 1437 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1438 | } |
| 1439 | r_idx = find_first_bit(q_vector->txr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1440 | adapter->num_tx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1441 | |
| 1442 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1443 | j = adapter->tx_ring[r_idx]->reg_idx; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1444 | ixgbe_set_ivar(adapter, 1, j, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1445 | r_idx = find_next_bit(q_vector->txr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1446 | adapter->num_tx_queues, |
| 1447 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1448 | } |
| 1449 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1450 | if (q_vector->txr_count && !q_vector->rxr_count) |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1451 | /* tx only */ |
| 1452 | q_vector->eitr = adapter->tx_eitr_param; |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1453 | else if (q_vector->rxr_count) |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1454 | /* rx or mixed */ |
| 1455 | q_vector->eitr = adapter->rx_eitr_param; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1456 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1457 | ixgbe_write_eitr(q_vector); |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 1458 | /* If Flow Director is enabled, set interrupt affinity */ |
| 1459 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 1460 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) { |
| 1461 | /* |
| 1462 | * Allocate the affinity_hint cpumask, assign the mask |
| 1463 | * for this vector, and set our affinity_hint for |
| 1464 | * this irq. |
| 1465 | */ |
| 1466 | if (!alloc_cpumask_var(&q_vector->affinity_mask, |
| 1467 | GFP_KERNEL)) |
| 1468 | return; |
| 1469 | cpumask_set_cpu(v_idx, q_vector->affinity_mask); |
| 1470 | irq_set_affinity_hint(adapter->msix_entries[v_idx].vector, |
| 1471 | q_vector->affinity_mask); |
| 1472 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1473 | } |
| 1474 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1475 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
| 1476 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1477 | v_idx); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1478 | else if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 1479 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1480 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1481 | |
Jesse Brandeburg | 41fb924 | 2008-09-11 19:55:58 -0700 | [diff] [blame] | 1482 | /* set up to autoclear timer, and the vectors */ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1483 | mask = IXGBE_EIMS_ENABLE_MASK; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 1484 | if (adapter->num_vfs) |
| 1485 | mask &= ~(IXGBE_EIMS_OTHER | |
| 1486 | IXGBE_EIMS_MAILBOX | |
| 1487 | IXGBE_EIMS_LSC); |
| 1488 | else |
| 1489 | mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1490 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1491 | } |
| 1492 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1493 | enum latency_range { |
| 1494 | lowest_latency = 0, |
| 1495 | low_latency = 1, |
| 1496 | bulk_latency = 2, |
| 1497 | latency_invalid = 255 |
| 1498 | }; |
| 1499 | |
| 1500 | /** |
| 1501 | * ixgbe_update_itr - update the dynamic ITR value based on statistics |
| 1502 | * @adapter: pointer to adapter |
| 1503 | * @eitr: eitr setting (ints per sec) to give last timeslice |
| 1504 | * @itr_setting: current throttle rate in ints/second |
| 1505 | * @packets: the number of packets during this measurement interval |
| 1506 | * @bytes: the number of bytes during this measurement interval |
| 1507 | * |
| 1508 | * Stores a new ITR value based on packets and byte |
| 1509 | * counts during the last interrupt. The advantage of per interrupt |
| 1510 | * computation is faster updates and more accurate ITR for the current |
| 1511 | * traffic pattern. Constants in this function were computed |
| 1512 | * based on theoretical maximum wire speed and thresholds were set based |
| 1513 | * on testing data as well as attempting to minimize response time |
| 1514 | * while increasing bulk throughput. |
| 1515 | * this functionality is controlled by the InterruptThrottleRate module |
| 1516 | * parameter (see ixgbe_param.c) |
| 1517 | **/ |
| 1518 | static u8 ixgbe_update_itr(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1519 | u32 eitr, u8 itr_setting, |
| 1520 | int packets, int bytes) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1521 | { |
| 1522 | unsigned int retval = itr_setting; |
| 1523 | u32 timepassed_us; |
| 1524 | u64 bytes_perint; |
| 1525 | |
| 1526 | if (packets == 0) |
| 1527 | goto update_itr_done; |
| 1528 | |
| 1529 | |
| 1530 | /* simple throttlerate management |
| 1531 | * 0-20MB/s lowest (100000 ints/s) |
| 1532 | * 20-100MB/s low (20000 ints/s) |
| 1533 | * 100-1249MB/s bulk (8000 ints/s) |
| 1534 | */ |
| 1535 | /* what was last interrupt timeslice? */ |
| 1536 | timepassed_us = 1000000/eitr; |
| 1537 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
| 1538 | |
| 1539 | switch (itr_setting) { |
| 1540 | case lowest_latency: |
| 1541 | if (bytes_perint > adapter->eitr_low) |
| 1542 | retval = low_latency; |
| 1543 | break; |
| 1544 | case low_latency: |
| 1545 | if (bytes_perint > adapter->eitr_high) |
| 1546 | retval = bulk_latency; |
| 1547 | else if (bytes_perint <= adapter->eitr_low) |
| 1548 | retval = lowest_latency; |
| 1549 | break; |
| 1550 | case bulk_latency: |
| 1551 | if (bytes_perint <= adapter->eitr_high) |
| 1552 | retval = low_latency; |
| 1553 | break; |
| 1554 | } |
| 1555 | |
| 1556 | update_itr_done: |
| 1557 | return retval; |
| 1558 | } |
| 1559 | |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1560 | /** |
| 1561 | * ixgbe_write_eitr - write EITR register in hardware specific way |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1562 | * @q_vector: structure containing interrupt and ring information |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1563 | * |
| 1564 | * This function is made to be called by ethtool and by the driver |
| 1565 | * when it needs to update EITR registers at runtime. Hardware |
| 1566 | * specific quirks/differences are taken care of here. |
| 1567 | */ |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1568 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1569 | { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1570 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1571 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1572 | int v_idx = q_vector->v_idx; |
| 1573 | u32 itr_reg = EITR_INTS_PER_SEC_TO_REG(q_vector->eitr); |
| 1574 | |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1575 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1576 | /* must write high and low 16 bits to reset counter */ |
| 1577 | itr_reg |= (itr_reg << 16); |
| 1578 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
| 1579 | /* |
Jesse Brandeburg | f8d1dca | 2010-04-27 01:37:20 +0000 | [diff] [blame] | 1580 | * 82599 can support a value of zero, so allow it for |
| 1581 | * max interrupt rate, but there is an errata where it can |
| 1582 | * not be zero with RSC |
| 1583 | */ |
| 1584 | if (itr_reg == 8 && |
| 1585 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) |
| 1586 | itr_reg = 0; |
| 1587 | |
| 1588 | /* |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1589 | * set the WDIS bit to not clear the timer bits and cause an |
| 1590 | * immediate assertion of the interrupt |
| 1591 | */ |
| 1592 | itr_reg |= IXGBE_EITR_CNT_WDIS; |
| 1593 | } |
| 1594 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); |
| 1595 | } |
| 1596 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1597 | static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) |
| 1598 | { |
| 1599 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1600 | u32 new_itr; |
| 1601 | u8 current_itr, ret_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1602 | int i, r_idx; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1603 | struct ixgbe_ring *rx_ring, *tx_ring; |
| 1604 | |
| 1605 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1606 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1607 | tx_ring = adapter->tx_ring[r_idx]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1608 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1609 | q_vector->tx_itr, |
| 1610 | tx_ring->total_packets, |
| 1611 | tx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1612 | /* if the result for this queue would decrease interrupt |
| 1613 | * rate for this vector then use that result */ |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1614 | q_vector->tx_itr = ((q_vector->tx_itr > ret_itr) ? |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1615 | q_vector->tx_itr - 1 : ret_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1616 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1617 | r_idx + 1); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1618 | } |
| 1619 | |
| 1620 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1621 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1622 | rx_ring = adapter->rx_ring[r_idx]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1623 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1624 | q_vector->rx_itr, |
| 1625 | rx_ring->total_packets, |
| 1626 | rx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1627 | /* if the result for this queue would decrease interrupt |
| 1628 | * rate for this vector then use that result */ |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1629 | q_vector->rx_itr = ((q_vector->rx_itr > ret_itr) ? |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1630 | q_vector->rx_itr - 1 : ret_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1631 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1632 | r_idx + 1); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1633 | } |
| 1634 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1635 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1636 | |
| 1637 | switch (current_itr) { |
| 1638 | /* counts and packets in update_itr are dependent on these numbers */ |
| 1639 | case lowest_latency: |
| 1640 | new_itr = 100000; |
| 1641 | break; |
| 1642 | case low_latency: |
| 1643 | new_itr = 20000; /* aka hwitr = ~200 */ |
| 1644 | break; |
| 1645 | case bulk_latency: |
| 1646 | default: |
| 1647 | new_itr = 8000; |
| 1648 | break; |
| 1649 | } |
| 1650 | |
| 1651 | if (new_itr != q_vector->eitr) { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1652 | /* do an exponential smoothing */ |
| 1653 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1654 | |
| 1655 | /* save the algorithm value here, not the smoothed one */ |
| 1656 | q_vector->eitr = new_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1657 | |
| 1658 | ixgbe_write_eitr(q_vector); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1659 | } |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1660 | } |
| 1661 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1662 | /** |
| 1663 | * ixgbe_check_overtemp_task - worker thread to check over tempurature |
| 1664 | * @work: pointer to work_struct containing our data |
| 1665 | **/ |
| 1666 | static void ixgbe_check_overtemp_task(struct work_struct *work) |
| 1667 | { |
| 1668 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1669 | struct ixgbe_adapter, |
| 1670 | check_overtemp_task); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1671 | struct ixgbe_hw *hw = &adapter->hw; |
| 1672 | u32 eicr = adapter->interrupt_event; |
| 1673 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1674 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) |
| 1675 | return; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1676 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1677 | switch (hw->device_id) { |
| 1678 | case IXGBE_DEV_ID_82599_T3_LOM: { |
| 1679 | u32 autoneg; |
| 1680 | bool link_up = false; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1681 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1682 | if (hw->mac.ops.check_link) |
| 1683 | hw->mac.ops.check_link(hw, &autoneg, &link_up, false); |
| 1684 | |
| 1685 | if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) || |
| 1686 | (eicr & IXGBE_EICR_LSC)) |
| 1687 | /* Check if this is due to overtemp */ |
| 1688 | if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP) |
| 1689 | break; |
| 1690 | return; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1691 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1692 | default: |
| 1693 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) |
| 1694 | return; |
| 1695 | break; |
| 1696 | } |
| 1697 | e_crit(drv, |
| 1698 | "Network adapter has been stopped because it has over heated. " |
| 1699 | "Restart the computer. If the problem persists, " |
| 1700 | "power off the system and replace the adapter\n"); |
| 1701 | /* write to clear the interrupt */ |
| 1702 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1703 | } |
| 1704 | |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1705 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
| 1706 | { |
| 1707 | struct ixgbe_hw *hw = &adapter->hw; |
| 1708 | |
| 1709 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && |
| 1710 | (eicr & IXGBE_EICR_GPI_SDP1)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 1711 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1712 | /* write to clear the interrupt */ |
| 1713 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); |
| 1714 | } |
| 1715 | } |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1716 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1717 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
| 1718 | { |
| 1719 | struct ixgbe_hw *hw = &adapter->hw; |
| 1720 | |
Alexander Duyck | 73c4b7c | 2010-11-16 19:26:57 -0800 | [diff] [blame] | 1721 | if (eicr & IXGBE_EICR_GPI_SDP2) { |
| 1722 | /* Clear the interrupt */ |
| 1723 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); |
| 1724 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 1725 | schedule_work(&adapter->sfp_config_module_task); |
| 1726 | } |
| 1727 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1728 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
| 1729 | /* Clear the interrupt */ |
| 1730 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); |
Alexander Duyck | 73c4b7c | 2010-11-16 19:26:57 -0800 | [diff] [blame] | 1731 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 1732 | schedule_work(&adapter->multispeed_fiber_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1733 | } |
| 1734 | } |
| 1735 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1736 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
| 1737 | { |
| 1738 | struct ixgbe_hw *hw = &adapter->hw; |
| 1739 | |
| 1740 | adapter->lsc_int++; |
| 1741 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 1742 | adapter->link_check_timeout = jiffies; |
| 1743 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
| 1744 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); |
Nelson, Shannon | 8a0717f | 2009-11-12 18:47:11 +0000 | [diff] [blame] | 1745 | IXGBE_WRITE_FLUSH(hw); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1746 | schedule_work(&adapter->watchdog_task); |
| 1747 | } |
| 1748 | } |
| 1749 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1750 | static irqreturn_t ixgbe_msix_lsc(int irq, void *data) |
| 1751 | { |
| 1752 | struct net_device *netdev = data; |
| 1753 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 1754 | struct ixgbe_hw *hw = &adapter->hw; |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 1755 | u32 eicr; |
| 1756 | |
| 1757 | /* |
| 1758 | * Workaround for Silicon errata. Use clear-by-write instead |
| 1759 | * of clear-by-read. Reading with EICS will return the |
| 1760 | * interrupt causes without clearing, which later be done |
| 1761 | * with the write to EICR. |
| 1762 | */ |
| 1763 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); |
| 1764 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1765 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1766 | if (eicr & IXGBE_EICR_LSC) |
| 1767 | ixgbe_check_lsc(adapter); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 1768 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 1769 | if (eicr & IXGBE_EICR_MAILBOX) |
| 1770 | ixgbe_msg_task(adapter); |
| 1771 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1772 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 1773 | ixgbe_check_fan_failure(adapter, eicr); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1774 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1775 | if (hw->mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1776 | ixgbe_check_sfp_event(adapter, eicr); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1777 | adapter->interrupt_event = eicr; |
| 1778 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
| 1779 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) |
| 1780 | schedule_work(&adapter->check_overtemp_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1781 | |
| 1782 | /* Handle Flow Director Full threshold interrupt */ |
| 1783 | if (eicr & IXGBE_EICR_FLOW_DIR) { |
| 1784 | int i; |
| 1785 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_FLOW_DIR); |
| 1786 | /* Disable transmits before FDIR Re-initialization */ |
| 1787 | netif_tx_stop_all_queues(netdev); |
| 1788 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 1789 | struct ixgbe_ring *tx_ring = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1790 | adapter->tx_ring[i]; |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 1791 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
| 1792 | &tx_ring->state)) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1793 | schedule_work(&adapter->fdir_reinit_task); |
| 1794 | } |
| 1795 | } |
| 1796 | } |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 1797 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 1798 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_OTHER); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1799 | |
| 1800 | return IRQ_HANDLED; |
| 1801 | } |
| 1802 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1803 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
| 1804 | u64 qmask) |
| 1805 | { |
| 1806 | u32 mask; |
| 1807 | |
| 1808 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1809 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 1810 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
| 1811 | } else { |
| 1812 | mask = (qmask & 0xFFFFFFFF); |
| 1813 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(0), mask); |
| 1814 | mask = (qmask >> 32); |
| 1815 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), mask); |
| 1816 | } |
| 1817 | /* skip the flush */ |
| 1818 | } |
| 1819 | |
| 1820 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1821 | u64 qmask) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1822 | { |
| 1823 | u32 mask; |
| 1824 | |
| 1825 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1826 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 1827 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, mask); |
| 1828 | } else { |
| 1829 | mask = (qmask & 0xFFFFFFFF); |
| 1830 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), mask); |
| 1831 | mask = (qmask >> 32); |
| 1832 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), mask); |
| 1833 | } |
| 1834 | /* skip the flush */ |
| 1835 | } |
| 1836 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1837 | static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data) |
| 1838 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1839 | struct ixgbe_q_vector *q_vector = data; |
| 1840 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1841 | struct ixgbe_ring *tx_ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1842 | int i, r_idx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1843 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1844 | if (!q_vector->txr_count) |
| 1845 | return IRQ_HANDLED; |
| 1846 | |
| 1847 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1848 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1849 | tx_ring = adapter->tx_ring[r_idx]; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1850 | tx_ring->total_bytes = 0; |
| 1851 | tx_ring->total_packets = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1852 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1853 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1854 | } |
| 1855 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1856 | /* EIAM disabled interrupts (on this vector) for us */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1857 | napi_schedule(&q_vector->napi); |
| 1858 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1859 | return IRQ_HANDLED; |
| 1860 | } |
| 1861 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1862 | /** |
| 1863 | * ixgbe_msix_clean_rx - single unshared vector rx clean (all queues) |
| 1864 | * @irq: unused |
| 1865 | * @data: pointer to our q_vector struct for this interrupt vector |
| 1866 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1867 | static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data) |
| 1868 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1869 | struct ixgbe_q_vector *q_vector = data; |
| 1870 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1871 | struct ixgbe_ring *rx_ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1872 | int r_idx; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1873 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1874 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 1875 | #ifdef CONFIG_IXGBE_DCA |
| 1876 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 1877 | ixgbe_update_dca(q_vector); |
| 1878 | #endif |
| 1879 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1880 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 1881 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1882 | rx_ring = adapter->rx_ring[r_idx]; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1883 | rx_ring->total_bytes = 0; |
| 1884 | rx_ring->total_packets = 0; |
| 1885 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1886 | r_idx + 1); |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1887 | } |
| 1888 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1889 | if (!q_vector->rxr_count) |
| 1890 | return IRQ_HANDLED; |
| 1891 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1892 | /* EIAM disabled interrupts (on this vector) for us */ |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1893 | napi_schedule(&q_vector->napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1894 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1895 | return IRQ_HANDLED; |
| 1896 | } |
| 1897 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1898 | static irqreturn_t ixgbe_msix_clean_many(int irq, void *data) |
| 1899 | { |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1900 | struct ixgbe_q_vector *q_vector = data; |
| 1901 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 1902 | struct ixgbe_ring *ring; |
| 1903 | int r_idx; |
| 1904 | int i; |
| 1905 | |
| 1906 | if (!q_vector->txr_count && !q_vector->rxr_count) |
| 1907 | return IRQ_HANDLED; |
| 1908 | |
| 1909 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1910 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1911 | ring = adapter->tx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1912 | ring->total_bytes = 0; |
| 1913 | ring->total_packets = 0; |
| 1914 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1915 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
| 1918 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1919 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1920 | ring = adapter->rx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1921 | ring->total_bytes = 0; |
| 1922 | ring->total_packets = 0; |
| 1923 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1924 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1925 | } |
| 1926 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1927 | /* EIAM disabled interrupts (on this vector) for us */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1928 | napi_schedule(&q_vector->napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1929 | |
| 1930 | return IRQ_HANDLED; |
| 1931 | } |
| 1932 | |
| 1933 | /** |
| 1934 | * ixgbe_clean_rxonly - msix (aka one shot) rx clean routine |
| 1935 | * @napi: napi struct with our devices info in it |
| 1936 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 1937 | * |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1938 | * This function is optimized for cleaning one queue only on a single |
| 1939 | * q_vector!!! |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1940 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1941 | static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget) |
| 1942 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1943 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1944 | container_of(napi, struct ixgbe_q_vector, napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1945 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1946 | struct ixgbe_ring *rx_ring = NULL; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1947 | int work_done = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1948 | long r_idx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1949 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 1950 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 1951 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 1952 | ixgbe_update_dca(q_vector); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 1953 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1954 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 1955 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1956 | rx_ring = adapter->rx_ring[r_idx]; |
| 1957 | |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 1958 | ixgbe_clean_rx_irq(q_vector, rx_ring, &work_done, budget); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1959 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1960 | /* If all Rx work done, exit the polling mode */ |
| 1961 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1962 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1963 | if (adapter->rx_itr_setting & 1) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1964 | ixgbe_set_itr_msix(q_vector); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1965 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1966 | ixgbe_irq_enable_queues(adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1967 | ((u64)1 << q_vector->v_idx)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1968 | } |
| 1969 | |
| 1970 | return work_done; |
| 1971 | } |
| 1972 | |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1973 | /** |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1974 | * ixgbe_clean_rxtx_many - msix (aka one shot) rx clean routine |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1975 | * @napi: napi struct with our devices info in it |
| 1976 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 1977 | * |
| 1978 | * This function will clean more than one rx queue associated with a |
| 1979 | * q_vector. |
| 1980 | **/ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1981 | static int ixgbe_clean_rxtx_many(struct napi_struct *napi, int budget) |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1982 | { |
| 1983 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1984 | container_of(napi, struct ixgbe_q_vector, napi); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1985 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1986 | struct ixgbe_ring *ring = NULL; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1987 | int work_done = 0, i; |
| 1988 | long r_idx; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1989 | bool tx_clean_complete = true; |
| 1990 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 1991 | #ifdef CONFIG_IXGBE_DCA |
| 1992 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 1993 | ixgbe_update_dca(q_vector); |
| 1994 | #endif |
| 1995 | |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1996 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1997 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1998 | ring = adapter->tx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1999 | tx_clean_complete &= ixgbe_clean_tx_irq(q_vector, ring); |
| 2000 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2001 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2002 | } |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2003 | |
| 2004 | /* attempt to distribute budget to each queue fairly, but don't allow |
| 2005 | * the budget to go below 1 because we'll exit polling */ |
| 2006 | budget /= (q_vector->rxr_count ?: 1); |
| 2007 | budget = max(budget, 1); |
| 2008 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 2009 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2010 | ring = adapter->rx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2011 | ixgbe_clean_rx_irq(q_vector, ring, &work_done, budget); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2012 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2013 | r_idx + 1); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2014 | } |
| 2015 | |
| 2016 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2017 | ring = adapter->rx_ring[r_idx]; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2018 | /* If all Rx work done, exit the polling mode */ |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 2019 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 2020 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 2021 | if (adapter->rx_itr_setting & 1) |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2022 | ixgbe_set_itr_msix(q_vector); |
| 2023 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 2024 | ixgbe_irq_enable_queues(adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2025 | ((u64)1 << q_vector->v_idx)); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 2026 | return 0; |
| 2027 | } |
| 2028 | |
| 2029 | return work_done; |
| 2030 | } |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2031 | |
| 2032 | /** |
| 2033 | * ixgbe_clean_txonly - msix (aka one shot) tx clean routine |
| 2034 | * @napi: napi struct with our devices info in it |
| 2035 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 2036 | * |
| 2037 | * This function is optimized for cleaning one queue only on a single |
| 2038 | * q_vector!!! |
| 2039 | **/ |
| 2040 | static int ixgbe_clean_txonly(struct napi_struct *napi, int budget) |
| 2041 | { |
| 2042 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2043 | container_of(napi, struct ixgbe_q_vector, napi); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2044 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 2045 | struct ixgbe_ring *tx_ring = NULL; |
| 2046 | int work_done = 0; |
| 2047 | long r_idx; |
| 2048 | |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2049 | #ifdef CONFIG_IXGBE_DCA |
| 2050 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 2051 | ixgbe_update_dca(q_vector); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2052 | #endif |
| 2053 | |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 2054 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 2055 | tx_ring = adapter->tx_ring[r_idx]; |
| 2056 | |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2057 | if (!ixgbe_clean_tx_irq(q_vector, tx_ring)) |
| 2058 | work_done = budget; |
| 2059 | |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 2060 | /* If all Tx work done, exit the polling mode */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2061 | if (work_done < budget) { |
| 2062 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 2063 | if (adapter->tx_itr_setting & 1) |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2064 | ixgbe_set_itr_msix(q_vector); |
| 2065 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2066 | ixgbe_irq_enable_queues(adapter, |
| 2067 | ((u64)1 << q_vector->v_idx)); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2068 | } |
| 2069 | |
| 2070 | return work_done; |
| 2071 | } |
| 2072 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2073 | static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2074 | int r_idx) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2075 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2076 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
| 2077 | |
| 2078 | set_bit(r_idx, q_vector->rxr_idx); |
| 2079 | q_vector->rxr_count++; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2080 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2081 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2082 | static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2083 | int t_idx) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2084 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2085 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
| 2086 | |
| 2087 | set_bit(t_idx, q_vector->txr_idx); |
| 2088 | q_vector->txr_count++; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2089 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2090 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2091 | /** |
| 2092 | * ixgbe_map_rings_to_vectors - Maps descriptor rings to vectors |
| 2093 | * @adapter: board private structure to initialize |
| 2094 | * @vectors: allotted vector count for descriptor rings |
| 2095 | * |
| 2096 | * This function maps descriptor rings to the queue-specific vectors |
| 2097 | * we were allotted through the MSI-X enabling code. Ideally, we'd have |
| 2098 | * one vector per ring/queue, but on a constrained vector budget, we |
| 2099 | * group the rings as "efficiently" as possible. You would add new |
| 2100 | * mapping configurations in here. |
| 2101 | **/ |
| 2102 | static int ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2103 | int vectors) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2104 | { |
| 2105 | int v_start = 0; |
| 2106 | int rxr_idx = 0, txr_idx = 0; |
| 2107 | int rxr_remaining = adapter->num_rx_queues; |
| 2108 | int txr_remaining = adapter->num_tx_queues; |
| 2109 | int i, j; |
| 2110 | int rqpv, tqpv; |
| 2111 | int err = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2112 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2113 | /* No mapping required if MSI-X is disabled. */ |
| 2114 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2115 | goto out; |
| 2116 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2117 | /* |
| 2118 | * The ideal configuration... |
| 2119 | * We have enough vectors to map one per queue. |
| 2120 | */ |
| 2121 | if (vectors == adapter->num_rx_queues + adapter->num_tx_queues) { |
| 2122 | for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) |
| 2123 | map_vector_to_rxq(adapter, v_start, rxr_idx); |
| 2124 | |
| 2125 | for (; txr_idx < txr_remaining; v_start++, txr_idx++) |
| 2126 | map_vector_to_txq(adapter, v_start, txr_idx); |
| 2127 | |
| 2128 | goto out; |
| 2129 | } |
| 2130 | |
| 2131 | /* |
| 2132 | * If we don't have enough vectors for a 1-to-1 |
| 2133 | * mapping, we'll have to group them so there are |
| 2134 | * multiple queues per vector. |
| 2135 | */ |
| 2136 | /* Re-adjusting *qpv takes care of the remainder. */ |
| 2137 | for (i = v_start; i < vectors; i++) { |
| 2138 | rqpv = DIV_ROUND_UP(rxr_remaining, vectors - i); |
| 2139 | for (j = 0; j < rqpv; j++) { |
| 2140 | map_vector_to_rxq(adapter, i, rxr_idx); |
| 2141 | rxr_idx++; |
| 2142 | rxr_remaining--; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2143 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2144 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2145 | for (i = v_start; i < vectors; i++) { |
| 2146 | tqpv = DIV_ROUND_UP(txr_remaining, vectors - i); |
| 2147 | for (j = 0; j < tqpv; j++) { |
| 2148 | map_vector_to_txq(adapter, i, txr_idx); |
| 2149 | txr_idx++; |
| 2150 | txr_remaining--; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2151 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2152 | } |
| 2153 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2154 | out: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2155 | return err; |
| 2156 | } |
| 2157 | |
| 2158 | /** |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2159 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts |
| 2160 | * @adapter: board private structure |
| 2161 | * |
| 2162 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests |
| 2163 | * interrupts from the kernel. |
| 2164 | **/ |
| 2165 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) |
| 2166 | { |
| 2167 | struct net_device *netdev = adapter->netdev; |
| 2168 | irqreturn_t (*handler)(int, void *); |
| 2169 | int i, vector, q_vectors, err; |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2170 | int ri = 0, ti = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2171 | |
| 2172 | /* Decrement for Other and TCP Timer vectors */ |
| 2173 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 2174 | |
| 2175 | /* Map the Tx/Rx rings to the vectors we were allotted. */ |
| 2176 | err = ixgbe_map_rings_to_vectors(adapter, q_vectors); |
| 2177 | if (err) |
| 2178 | goto out; |
| 2179 | |
| 2180 | #define SET_HANDLER(_v) ((!(_v)->rxr_count) ? &ixgbe_msix_clean_tx : \ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2181 | (!(_v)->txr_count) ? &ixgbe_msix_clean_rx : \ |
| 2182 | &ixgbe_msix_clean_many) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2183 | for (vector = 0; vector < q_vectors; vector++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2184 | handler = SET_HANDLER(adapter->q_vector[vector]); |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2185 | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2186 | if (handler == &ixgbe_msix_clean_rx) { |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2187 | sprintf(adapter->name[vector], "%s-%s-%d", |
| 2188 | netdev->name, "rx", ri++); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2189 | } else if (handler == &ixgbe_msix_clean_tx) { |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2190 | sprintf(adapter->name[vector], "%s-%s-%d", |
| 2191 | netdev->name, "tx", ti++); |
Alexander Duyck | 32aa77a | 2010-11-16 19:26:59 -0800 | [diff] [blame] | 2192 | } else { |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2193 | sprintf(adapter->name[vector], "%s-%s-%d", |
Alexander Duyck | 32aa77a | 2010-11-16 19:26:59 -0800 | [diff] [blame] | 2194 | netdev->name, "TxRx", ri++); |
| 2195 | ti++; |
| 2196 | } |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2197 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2198 | err = request_irq(adapter->msix_entries[vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2199 | handler, 0, adapter->name[vector], |
| 2200 | adapter->q_vector[vector]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2201 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2202 | e_err(probe, "request_irq failed for MSIX interrupt " |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 2203 | "Error: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2204 | goto free_queue_irqs; |
| 2205 | } |
| 2206 | } |
| 2207 | |
| 2208 | sprintf(adapter->name[vector], "%s:lsc", netdev->name); |
| 2209 | err = request_irq(adapter->msix_entries[vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2210 | ixgbe_msix_lsc, 0, adapter->name[vector], netdev); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2211 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2212 | e_err(probe, "request_irq for msix_lsc failed: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2213 | goto free_queue_irqs; |
| 2214 | } |
| 2215 | |
| 2216 | return 0; |
| 2217 | |
| 2218 | free_queue_irqs: |
| 2219 | for (i = vector - 1; i >= 0; i--) |
| 2220 | free_irq(adapter->msix_entries[--vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2221 | adapter->q_vector[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2222 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 2223 | pci_disable_msix(adapter->pdev); |
| 2224 | kfree(adapter->msix_entries); |
| 2225 | adapter->msix_entries = NULL; |
| 2226 | out: |
| 2227 | return err; |
| 2228 | } |
| 2229 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2230 | static void ixgbe_set_itr(struct ixgbe_adapter *adapter) |
| 2231 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2232 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2233 | u8 current_itr; |
| 2234 | u32 new_itr = q_vector->eitr; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2235 | struct ixgbe_ring *rx_ring = adapter->rx_ring[0]; |
| 2236 | struct ixgbe_ring *tx_ring = adapter->tx_ring[0]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2237 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2238 | q_vector->tx_itr = ixgbe_update_itr(adapter, new_itr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2239 | q_vector->tx_itr, |
| 2240 | tx_ring->total_packets, |
| 2241 | tx_ring->total_bytes); |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2242 | q_vector->rx_itr = ixgbe_update_itr(adapter, new_itr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2243 | q_vector->rx_itr, |
| 2244 | rx_ring->total_packets, |
| 2245 | rx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2246 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2247 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2248 | |
| 2249 | switch (current_itr) { |
| 2250 | /* counts and packets in update_itr are dependent on these numbers */ |
| 2251 | case lowest_latency: |
| 2252 | new_itr = 100000; |
| 2253 | break; |
| 2254 | case low_latency: |
| 2255 | new_itr = 20000; /* aka hwitr = ~200 */ |
| 2256 | break; |
| 2257 | case bulk_latency: |
| 2258 | new_itr = 8000; |
| 2259 | break; |
| 2260 | default: |
| 2261 | break; |
| 2262 | } |
| 2263 | |
| 2264 | if (new_itr != q_vector->eitr) { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 2265 | /* do an exponential smoothing */ |
| 2266 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 2267 | |
| 2268 | /* save the algorithm value here, not the smoothed one */ |
| 2269 | q_vector->eitr = new_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 2270 | |
| 2271 | ixgbe_write_eitr(q_vector); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2272 | } |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2273 | } |
| 2274 | |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2275 | /** |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2276 | * ixgbe_irq_enable - Enable default interrupt generation settings |
| 2277 | * @adapter: board private structure |
| 2278 | **/ |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2279 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
| 2280 | bool flush) |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2281 | { |
| 2282 | u32 mask; |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 2283 | |
| 2284 | mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 2285 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
| 2286 | mask |= IXGBE_EIMS_GPI_SDP0; |
David S. Miller | 6ab33d5 | 2008-11-20 16:44:00 -0800 | [diff] [blame] | 2287 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
| 2288 | mask |= IXGBE_EIMS_GPI_SDP1; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2289 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
Jesse Brandeburg | 2a41ff8 | 2009-03-13 22:14:30 +0000 | [diff] [blame] | 2290 | mask |= IXGBE_EIMS_ECC; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2291 | mask |= IXGBE_EIMS_GPI_SDP1; |
| 2292 | mask |= IXGBE_EIMS_GPI_SDP2; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2293 | if (adapter->num_vfs) |
| 2294 | mask |= IXGBE_EIMS_MAILBOX; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2295 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 2296 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 2297 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 2298 | mask |= IXGBE_EIMS_FLOW_DIR; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2299 | |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2300 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2301 | if (queues) |
| 2302 | ixgbe_irq_enable_queues(adapter, ~0); |
| 2303 | if (flush) |
| 2304 | IXGBE_WRITE_FLUSH(&adapter->hw); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2305 | |
| 2306 | if (adapter->num_vfs > 32) { |
| 2307 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; |
| 2308 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); |
| 2309 | } |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2310 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2311 | |
| 2312 | /** |
| 2313 | * ixgbe_intr - legacy mode Interrupt Handler |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2314 | * @irq: interrupt number |
| 2315 | * @data: pointer to a network interface device structure |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2316 | **/ |
| 2317 | static irqreturn_t ixgbe_intr(int irq, void *data) |
| 2318 | { |
| 2319 | struct net_device *netdev = data; |
| 2320 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 2321 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2322 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2323 | u32 eicr; |
| 2324 | |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 2325 | /* |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2326 | * Workaround for silicon errata on 82598. Mask the interrupts |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 2327 | * before the read of EICR. |
| 2328 | */ |
| 2329 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); |
| 2330 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2331 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
| 2332 | * therefore no explict interrupt disable is necessary */ |
| 2333 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2334 | if (!eicr) { |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2335 | /* |
| 2336 | * shared interrupt alert! |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2337 | * make sure interrupts are enabled because the read will |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2338 | * have disabled interrupts due to EIAM |
| 2339 | * finish the workaround of silicon errata on 82598. Unmask |
| 2340 | * the interrupt that we masked before the EICR read. |
| 2341 | */ |
| 2342 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 2343 | ixgbe_irq_enable(adapter, true, true); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2344 | return IRQ_NONE; /* Not our interrupt */ |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2345 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2346 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 2347 | if (eicr & IXGBE_EICR_LSC) |
| 2348 | ixgbe_check_lsc(adapter); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2349 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2350 | if (hw->mac.type == ixgbe_mac_82599EB) |
| 2351 | ixgbe_check_sfp_event(adapter, eicr); |
| 2352 | |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 2353 | ixgbe_check_fan_failure(adapter, eicr); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 2354 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
| 2355 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) |
| 2356 | schedule_work(&adapter->check_overtemp_task); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 2357 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2358 | if (napi_schedule_prep(&(q_vector->napi))) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2359 | adapter->tx_ring[0]->total_packets = 0; |
| 2360 | adapter->tx_ring[0]->total_bytes = 0; |
| 2361 | adapter->rx_ring[0]->total_packets = 0; |
| 2362 | adapter->rx_ring[0]->total_bytes = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2363 | /* would disable interrupts here but EIAM disabled it */ |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2364 | __napi_schedule(&(q_vector->napi)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2365 | } |
| 2366 | |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2367 | /* |
| 2368 | * re-enable link(maybe) and non-queue interrupts, no flush. |
| 2369 | * ixgbe_poll will re-enable the queue interrupts |
| 2370 | */ |
| 2371 | |
| 2372 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 2373 | ixgbe_irq_enable(adapter, false, false); |
| 2374 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2375 | return IRQ_HANDLED; |
| 2376 | } |
| 2377 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2378 | static inline void ixgbe_reset_q_vectors(struct ixgbe_adapter *adapter) |
| 2379 | { |
| 2380 | int i, q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 2381 | |
| 2382 | for (i = 0; i < q_vectors; i++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2383 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2384 | bitmap_zero(q_vector->rxr_idx, MAX_RX_QUEUES); |
| 2385 | bitmap_zero(q_vector->txr_idx, MAX_TX_QUEUES); |
| 2386 | q_vector->rxr_count = 0; |
| 2387 | q_vector->txr_count = 0; |
| 2388 | } |
| 2389 | } |
| 2390 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2391 | /** |
| 2392 | * ixgbe_request_irq - initialize interrupts |
| 2393 | * @adapter: board private structure |
| 2394 | * |
| 2395 | * Attempts to configure interrupts using the best available |
| 2396 | * capabilities of the hardware and kernel. |
| 2397 | **/ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2398 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2399 | { |
| 2400 | struct net_device *netdev = adapter->netdev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2401 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2402 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2403 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 2404 | err = ixgbe_request_msix_irqs(adapter); |
| 2405 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 2406 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2407 | netdev->name, netdev); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2408 | } else { |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 2409 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2410 | netdev->name, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2411 | } |
| 2412 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2413 | if (err) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2414 | e_err(probe, "request_irq failed, Error %d\n", err); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2415 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2416 | return err; |
| 2417 | } |
| 2418 | |
| 2419 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) |
| 2420 | { |
| 2421 | struct net_device *netdev = adapter->netdev; |
| 2422 | |
| 2423 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2424 | int i, q_vectors; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2425 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2426 | q_vectors = adapter->num_msix_vectors; |
| 2427 | |
| 2428 | i = q_vectors - 1; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2429 | free_irq(adapter->msix_entries[i].vector, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2430 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2431 | i--; |
| 2432 | for (; i >= 0; i--) { |
| 2433 | free_irq(adapter->msix_entries[i].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2434 | adapter->q_vector[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2435 | } |
| 2436 | |
| 2437 | ixgbe_reset_q_vectors(adapter); |
| 2438 | } else { |
| 2439 | free_irq(adapter->pdev->irq, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2440 | } |
| 2441 | } |
| 2442 | |
| 2443 | /** |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2444 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC |
| 2445 | * @adapter: board private structure |
| 2446 | **/ |
| 2447 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) |
| 2448 | { |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 2449 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 2450 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
| 2451 | } else { |
| 2452 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
| 2453 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2454 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2455 | if (adapter->num_vfs > 32) |
| 2456 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2457 | } |
| 2458 | IXGBE_WRITE_FLUSH(&adapter->hw); |
| 2459 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 2460 | int i; |
| 2461 | for (i = 0; i < adapter->num_msix_vectors; i++) |
| 2462 | synchronize_irq(adapter->msix_entries[i].vector); |
| 2463 | } else { |
| 2464 | synchronize_irq(adapter->pdev->irq); |
| 2465 | } |
| 2466 | } |
| 2467 | |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2468 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2469 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts |
| 2470 | * |
| 2471 | **/ |
| 2472 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) |
| 2473 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2474 | struct ixgbe_hw *hw = &adapter->hw; |
| 2475 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2476 | IXGBE_WRITE_REG(hw, IXGBE_EITR(0), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2477 | EITR_INTS_PER_SEC_TO_REG(adapter->rx_eitr_param)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2478 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2479 | ixgbe_set_ivar(adapter, 0, 0, 0); |
| 2480 | ixgbe_set_ivar(adapter, 1, 0, 0); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2481 | |
| 2482 | map_vector_to_rxq(adapter, 0, 0); |
| 2483 | map_vector_to_txq(adapter, 0, 0); |
| 2484 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2485 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2486 | } |
| 2487 | |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2488 | /** |
| 2489 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset |
| 2490 | * @adapter: board private structure |
| 2491 | * @ring: structure containing ring specific data |
| 2492 | * |
| 2493 | * Configure the Tx descriptor ring after a reset. |
| 2494 | **/ |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 2495 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
| 2496 | struct ixgbe_ring *ring) |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2497 | { |
| 2498 | struct ixgbe_hw *hw = &adapter->hw; |
| 2499 | u64 tdba = ring->dma; |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2500 | int wait_loop = 10; |
| 2501 | u32 txdctl; |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2502 | u16 reg_idx = ring->reg_idx; |
| 2503 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2504 | /* disable queue to avoid issues while updating state */ |
| 2505 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
| 2506 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), |
| 2507 | txdctl & ~IXGBE_TXDCTL_ENABLE); |
| 2508 | IXGBE_WRITE_FLUSH(hw); |
| 2509 | |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2510 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2511 | (tdba & DMA_BIT_MASK(32))); |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2512 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
| 2513 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), |
| 2514 | ring->count * sizeof(union ixgbe_adv_tx_desc)); |
| 2515 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); |
| 2516 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 2517 | ring->tail = hw->hw_addr + IXGBE_TDT(reg_idx); |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2518 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2519 | /* configure fetching thresholds */ |
| 2520 | if (adapter->rx_itr_setting == 0) { |
| 2521 | /* cannot set wthresh when itr==0 */ |
| 2522 | txdctl &= ~0x007F0000; |
| 2523 | } else { |
| 2524 | /* enable WTHRESH=8 descriptors, to encourage burst writeback */ |
| 2525 | txdctl |= (8 << 16); |
| 2526 | } |
| 2527 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 2528 | /* PThresh workaround for Tx hang with DFP enabled. */ |
| 2529 | txdctl |= 32; |
| 2530 | } |
| 2531 | |
| 2532 | /* reinitialize flowdirector state */ |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 2533 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
| 2534 | adapter->atr_sample_rate) { |
| 2535 | ring->atr_sample_rate = adapter->atr_sample_rate; |
| 2536 | ring->atr_count = 0; |
| 2537 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); |
| 2538 | } else { |
| 2539 | ring->atr_sample_rate = 0; |
| 2540 | } |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2541 | |
| 2542 | /* enable queue */ |
| 2543 | txdctl |= IXGBE_TXDCTL_ENABLE; |
| 2544 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
| 2545 | |
| 2546 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
| 2547 | if (hw->mac.type == ixgbe_mac_82598EB && |
| 2548 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) |
| 2549 | return; |
| 2550 | |
| 2551 | /* poll to verify queue is enabled */ |
| 2552 | do { |
| 2553 | msleep(1); |
| 2554 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
| 2555 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); |
| 2556 | if (!wait_loop) |
| 2557 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2558 | } |
| 2559 | |
Alexander Duyck | 120ff94 | 2010-08-19 13:34:50 +0000 | [diff] [blame] | 2560 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
| 2561 | { |
| 2562 | struct ixgbe_hw *hw = &adapter->hw; |
| 2563 | u32 rttdcs; |
| 2564 | u32 mask; |
| 2565 | |
| 2566 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 2567 | return; |
| 2568 | |
| 2569 | /* disable the arbiter while setting MTQC */ |
| 2570 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); |
| 2571 | rttdcs |= IXGBE_RTTDCS_ARBDIS; |
| 2572 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); |
| 2573 | |
| 2574 | /* set transmit pool layout */ |
| 2575 | mask = (IXGBE_FLAG_SRIOV_ENABLED | IXGBE_FLAG_DCB_ENABLED); |
| 2576 | switch (adapter->flags & mask) { |
| 2577 | |
| 2578 | case (IXGBE_FLAG_SRIOV_ENABLED): |
| 2579 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, |
| 2580 | (IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF)); |
| 2581 | break; |
| 2582 | |
| 2583 | case (IXGBE_FLAG_DCB_ENABLED): |
| 2584 | /* We enable 8 traffic classes, DCB only */ |
| 2585 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, |
| 2586 | (IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ)); |
| 2587 | break; |
| 2588 | |
| 2589 | default: |
| 2590 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, IXGBE_MTQC_64Q_1PB); |
| 2591 | break; |
| 2592 | } |
| 2593 | |
| 2594 | /* re-enable the arbiter */ |
| 2595 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; |
| 2596 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); |
| 2597 | } |
| 2598 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2599 | /** |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 2600 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2601 | * @adapter: board private structure |
| 2602 | * |
| 2603 | * Configure the Tx unit of the MAC after a reset. |
| 2604 | **/ |
| 2605 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) |
| 2606 | { |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2607 | struct ixgbe_hw *hw = &adapter->hw; |
| 2608 | u32 dmatxctl; |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2609 | u32 i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2610 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2611 | ixgbe_setup_mtqc(adapter); |
| 2612 | |
| 2613 | if (hw->mac.type != ixgbe_mac_82598EB) { |
| 2614 | /* DMATXCTL.EN must be before Tx queues are enabled */ |
| 2615 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); |
| 2616 | dmatxctl |= IXGBE_DMATXCTL_TE; |
| 2617 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); |
| 2618 | } |
| 2619 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2620 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2621 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 2622 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2623 | } |
| 2624 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2625 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2626 | |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2627 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2628 | struct ixgbe_ring *rx_ring) |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2629 | { |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2630 | u32 srrctl; |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2631 | int index; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2632 | struct ixgbe_ring_feature *feature = adapter->ring_feature; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2633 | |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2634 | index = rx_ring->reg_idx; |
| 2635 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 2636 | unsigned long mask; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2637 | mask = (unsigned long) feature[RING_F_RSS].mask; |
Alexander Duyck | 3be1adf | 2008-08-30 00:29:10 -0700 | [diff] [blame] | 2638 | index = index & mask; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2639 | } |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2640 | srrctl = IXGBE_READ_REG(&adapter->hw, IXGBE_SRRCTL(index)); |
| 2641 | |
| 2642 | srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; |
| 2643 | srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2644 | if (adapter->num_vfs) |
| 2645 | srrctl |= IXGBE_SRRCTL_DROP_EN; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2646 | |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2647 | srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & |
| 2648 | IXGBE_SRRCTL_BSIZEHDR_MASK; |
| 2649 | |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 2650 | if (ring_is_ps_enabled(rx_ring)) { |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2651 | #if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER |
| 2652 | srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
| 2653 | #else |
| 2654 | srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
| 2655 | #endif |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2656 | srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2657 | } else { |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2658 | srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >> |
| 2659 | IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2660 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2661 | } |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2662 | |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2663 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl); |
| 2664 | } |
| 2665 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2666 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2667 | { |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2668 | struct ixgbe_hw *hw = &adapter->hw; |
| 2669 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2670 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
| 2671 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2672 | u32 mrqc = 0, reta = 0; |
| 2673 | u32 rxcsum; |
| 2674 | int i, j; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2675 | int mask; |
| 2676 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2677 | /* Fill out hash function seeds */ |
| 2678 | for (i = 0; i < 10; i++) |
| 2679 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2680 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2681 | /* Fill out redirection table */ |
| 2682 | for (i = 0, j = 0; i < 128; i++, j++) { |
| 2683 | if (j == adapter->ring_feature[RING_F_RSS].indices) |
| 2684 | j = 0; |
| 2685 | /* reta = 4-byte sliding window of |
| 2686 | * 0x00..(indices-1)(indices-1)00..etc. */ |
| 2687 | reta = (reta << 8) | (j * 0x11); |
| 2688 | if ((i & 3) == 3) |
| 2689 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); |
| 2690 | } |
| 2691 | |
| 2692 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
| 2693 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); |
| 2694 | rxcsum |= IXGBE_RXCSUM_PCSD; |
| 2695 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); |
| 2696 | |
| 2697 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
| 2698 | mask = adapter->flags & IXGBE_FLAG_RSS_ENABLED; |
| 2699 | else |
| 2700 | mask = adapter->flags & (IXGBE_FLAG_RSS_ENABLED |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2701 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2702 | | IXGBE_FLAG_DCB_ENABLED |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2703 | #endif |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2704 | | IXGBE_FLAG_SRIOV_ENABLED |
| 2705 | ); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2706 | |
| 2707 | switch (mask) { |
| 2708 | case (IXGBE_FLAG_RSS_ENABLED): |
| 2709 | mrqc = IXGBE_MRQC_RSSEN; |
| 2710 | break; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2711 | case (IXGBE_FLAG_SRIOV_ENABLED): |
| 2712 | mrqc = IXGBE_MRQC_VMDQEN; |
| 2713 | break; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2714 | #ifdef CONFIG_IXGBE_DCB |
| 2715 | case (IXGBE_FLAG_DCB_ENABLED): |
| 2716 | mrqc = IXGBE_MRQC_RT8TCEN; |
| 2717 | break; |
| 2718 | #endif /* CONFIG_IXGBE_DCB */ |
| 2719 | default: |
| 2720 | break; |
| 2721 | } |
| 2722 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2723 | /* Perform hash on these packet types */ |
| 2724 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 |
| 2725 | | IXGBE_MRQC_RSS_FIELD_IPV4_TCP |
| 2726 | | IXGBE_MRQC_RSS_FIELD_IPV6 |
| 2727 | | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; |
| 2728 | |
| 2729 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2730 | } |
| 2731 | |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 2732 | /** |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2733 | * ixgbe_configure_rscctl - enable RSC for the indicated ring |
| 2734 | * @adapter: address of board private structure |
| 2735 | * @index: index of ring to set |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2736 | **/ |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2737 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
| 2738 | struct ixgbe_ring *ring) |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2739 | { |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2740 | struct ixgbe_hw *hw = &adapter->hw; |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2741 | u32 rscctrl; |
Mallikarjuna R Chilakala | edd2ea5 | 2009-11-23 10:45:11 -0800 | [diff] [blame] | 2742 | int rx_buf_len; |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2743 | u16 reg_idx = ring->reg_idx; |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2744 | |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 2745 | if (!ring_is_rsc_enabled(ring)) |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2746 | return; |
| 2747 | |
| 2748 | rx_buf_len = ring->rx_buf_len; |
| 2749 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2750 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
| 2751 | /* |
| 2752 | * we must limit the number of descriptors so that the |
| 2753 | * total size of max desc * buf_len is not greater |
| 2754 | * than 65535 |
| 2755 | */ |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 2756 | if (ring_is_ps_enabled(ring)) { |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2757 | #if (MAX_SKB_FRAGS > 16) |
| 2758 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
| 2759 | #elif (MAX_SKB_FRAGS > 8) |
| 2760 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
| 2761 | #elif (MAX_SKB_FRAGS > 4) |
| 2762 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; |
| 2763 | #else |
| 2764 | rscctrl |= IXGBE_RSCCTL_MAXDESC_1; |
| 2765 | #endif |
| 2766 | } else { |
| 2767 | if (rx_buf_len < IXGBE_RXBUFFER_4096) |
| 2768 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
| 2769 | else if (rx_buf_len < IXGBE_RXBUFFER_8192) |
| 2770 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
| 2771 | else |
| 2772 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; |
| 2773 | } |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2774 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2775 | } |
| 2776 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2777 | /** |
| 2778 | * ixgbe_set_uta - Set unicast filter table address |
| 2779 | * @adapter: board private structure |
| 2780 | * |
| 2781 | * The unicast table address is a register array of 32-bit registers. |
| 2782 | * The table is meant to be used in a way similar to how the MTA is used |
| 2783 | * however due to certain limitations in the hardware it is necessary to |
| 2784 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous |
| 2785 | * enable bit to allow vlan tag stripping when promiscuous mode is enabled |
| 2786 | **/ |
| 2787 | static void ixgbe_set_uta(struct ixgbe_adapter *adapter) |
| 2788 | { |
| 2789 | struct ixgbe_hw *hw = &adapter->hw; |
| 2790 | int i; |
| 2791 | |
| 2792 | /* The UTA table only exists on 82599 hardware and newer */ |
| 2793 | if (hw->mac.type < ixgbe_mac_82599EB) |
| 2794 | return; |
| 2795 | |
| 2796 | /* we only need to do this if VMDq is enabled */ |
| 2797 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) |
| 2798 | return; |
| 2799 | |
| 2800 | for (i = 0; i < 128; i++) |
| 2801 | IXGBE_WRITE_REG(hw, IXGBE_UTA(i), ~0); |
| 2802 | } |
| 2803 | |
| 2804 | #define IXGBE_MAX_RX_DESC_POLL 10 |
| 2805 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, |
| 2806 | struct ixgbe_ring *ring) |
| 2807 | { |
| 2808 | struct ixgbe_hw *hw = &adapter->hw; |
| 2809 | int reg_idx = ring->reg_idx; |
| 2810 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
| 2811 | u32 rxdctl; |
| 2812 | |
| 2813 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
| 2814 | if (hw->mac.type == ixgbe_mac_82598EB && |
| 2815 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) |
| 2816 | return; |
| 2817 | |
| 2818 | do { |
| 2819 | msleep(1); |
| 2820 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
| 2821 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); |
| 2822 | |
| 2823 | if (!wait_loop) { |
| 2824 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " |
| 2825 | "the polling period\n", reg_idx); |
| 2826 | } |
| 2827 | } |
| 2828 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 2829 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
| 2830 | struct ixgbe_ring *ring) |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2831 | { |
| 2832 | struct ixgbe_hw *hw = &adapter->hw; |
| 2833 | u64 rdba = ring->dma; |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2834 | u32 rxdctl; |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2835 | u16 reg_idx = ring->reg_idx; |
| 2836 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2837 | /* disable queue to avoid issues while updating state */ |
| 2838 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
| 2839 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), |
| 2840 | rxdctl & ~IXGBE_RXDCTL_ENABLE); |
| 2841 | IXGBE_WRITE_FLUSH(hw); |
| 2842 | |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2843 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
| 2844 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); |
| 2845 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), |
| 2846 | ring->count * sizeof(union ixgbe_adv_rx_desc)); |
| 2847 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); |
| 2848 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 2849 | ring->tail = hw->hw_addr + IXGBE_RDT(reg_idx); |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2850 | |
| 2851 | ixgbe_configure_srrctl(adapter, ring); |
| 2852 | ixgbe_configure_rscctl(adapter, ring); |
| 2853 | |
| 2854 | if (hw->mac.type == ixgbe_mac_82598EB) { |
| 2855 | /* |
| 2856 | * enable cache line friendly hardware writes: |
| 2857 | * PTHRESH=32 descriptors (half the internal cache), |
| 2858 | * this also removes ugly rx_no_buffer_count increment |
| 2859 | * HTHRESH=4 descriptors (to minimize latency on fetch) |
| 2860 | * WTHRESH=8 burst writeback up to two cache lines |
| 2861 | */ |
| 2862 | rxdctl &= ~0x3FFFFF; |
| 2863 | rxdctl |= 0x080420; |
| 2864 | } |
| 2865 | |
| 2866 | /* enable receive descriptor ring */ |
| 2867 | rxdctl |= IXGBE_RXDCTL_ENABLE; |
| 2868 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); |
| 2869 | |
| 2870 | ixgbe_rx_desc_queue_enable(adapter, ring); |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 2871 | ixgbe_alloc_rx_buffers(ring, IXGBE_DESC_UNUSED(ring)); |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2872 | } |
| 2873 | |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2874 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
| 2875 | { |
| 2876 | struct ixgbe_hw *hw = &adapter->hw; |
| 2877 | int p; |
| 2878 | |
| 2879 | /* PSRTYPE must be initialized in non 82598 adapters */ |
| 2880 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2881 | IXGBE_PSRTYPE_UDPHDR | |
| 2882 | IXGBE_PSRTYPE_IPV4HDR | |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2883 | IXGBE_PSRTYPE_L2HDR | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2884 | IXGBE_PSRTYPE_IPV6HDR; |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2885 | |
| 2886 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 2887 | return; |
| 2888 | |
| 2889 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) |
| 2890 | psrtype |= (adapter->num_rx_queues_per_pool << 29); |
| 2891 | |
| 2892 | for (p = 0; p < adapter->num_rx_pools; p++) |
| 2893 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(adapter->num_vfs + p), |
| 2894 | psrtype); |
| 2895 | } |
| 2896 | |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 2897 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
| 2898 | { |
| 2899 | struct ixgbe_hw *hw = &adapter->hw; |
| 2900 | u32 gcr_ext; |
| 2901 | u32 vt_reg_bits; |
| 2902 | u32 reg_offset, vf_shift; |
| 2903 | u32 vmdctl; |
| 2904 | |
| 2905 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) |
| 2906 | return; |
| 2907 | |
| 2908 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); |
| 2909 | vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN | IXGBE_VT_CTL_REPLEN; |
| 2910 | vt_reg_bits |= (adapter->num_vfs << IXGBE_VT_CTL_POOL_SHIFT); |
| 2911 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits); |
| 2912 | |
| 2913 | vf_shift = adapter->num_vfs % 32; |
| 2914 | reg_offset = (adapter->num_vfs > 32) ? 1 : 0; |
| 2915 | |
| 2916 | /* Enable only the PF's pool for Tx/Rx */ |
| 2917 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift)); |
| 2918 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), 0); |
| 2919 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift)); |
| 2920 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), 0); |
| 2921 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
| 2922 | |
| 2923 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ |
| 2924 | hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs); |
| 2925 | |
| 2926 | /* |
| 2927 | * Set up VF register offsets for selected VT Mode, |
| 2928 | * i.e. 32 or 64 VFs for SR-IOV |
| 2929 | */ |
| 2930 | gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); |
| 2931 | gcr_ext |= IXGBE_GCR_EXT_MSIX_EN; |
| 2932 | gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64; |
| 2933 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
| 2934 | |
| 2935 | /* enable Tx loopback for VF/PF communication */ |
| 2936 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
| 2937 | } |
| 2938 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2939 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2940 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2941 | struct ixgbe_hw *hw = &adapter->hw; |
| 2942 | struct net_device *netdev = adapter->netdev; |
| 2943 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2944 | int rx_buf_len; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2945 | struct ixgbe_ring *rx_ring; |
| 2946 | int i; |
| 2947 | u32 mhadd, hlreg0; |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2948 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2949 | /* Decide whether to use packet split mode or not */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2950 | /* Do not use packet split if we're in SR-IOV Mode */ |
| 2951 | if (!adapter->num_vfs) |
| 2952 | adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2953 | |
| 2954 | /* Set the RX buffer length according to the mode */ |
| 2955 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2956 | rx_buf_len = IXGBE_RX_HDR_SIZE; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2957 | } else { |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 2958 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 2959 | (netdev->mtu <= ETH_DATA_LEN)) |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2960 | rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2961 | else |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2962 | rx_buf_len = ALIGN(max_frame + VLAN_HLEN, 1024); |
| 2963 | } |
| 2964 | |
| 2965 | #ifdef IXGBE_FCOE |
| 2966 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
| 2967 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && |
| 2968 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) |
| 2969 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; |
| 2970 | |
| 2971 | #endif /* IXGBE_FCOE */ |
| 2972 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
| 2973 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { |
| 2974 | mhadd &= ~IXGBE_MHADD_MFS_MASK; |
| 2975 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; |
| 2976 | |
| 2977 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2978 | } |
| 2979 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2980 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2981 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ |
| 2982 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2983 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); |
| 2984 | |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2985 | /* |
| 2986 | * Setup the HW Rx Head and Tail Descriptor Pointers and |
| 2987 | * the Base and Length of the Rx Descriptor Ring |
| 2988 | */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2989 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2990 | rx_ring = adapter->rx_ring[i]; |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2991 | rx_ring->rx_buf_len = rx_buf_len; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2992 | |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 2993 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 2994 | set_ring_ps_enabled(rx_ring); |
Peter P Waskiewicz Jr | 1b3ff02 | 2009-09-14 07:47:27 +0000 | [diff] [blame] | 2995 | else |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 2996 | clear_ring_ps_enabled(rx_ring); |
| 2997 | |
| 2998 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
| 2999 | set_ring_rsc_enabled(rx_ring); |
| 3000 | else |
| 3001 | clear_ring_rsc_enabled(rx_ring); |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 3002 | |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 3003 | #ifdef IXGBE_FCOE |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3004 | if (netdev->features & NETIF_F_FCOE_MTU) { |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 3005 | struct ixgbe_ring_feature *f; |
| 3006 | f = &adapter->ring_feature[RING_F_FCOE]; |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 3007 | if ((i >= f->mask) && (i < f->mask + f->indices)) { |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 3008 | clear_ring_ps_enabled(rx_ring); |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 3009 | if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) |
| 3010 | rx_ring->rx_buf_len = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3011 | IXGBE_FCOE_JUMBO_FRAME_SIZE; |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 3012 | } else if (!ring_is_rsc_enabled(rx_ring) && |
| 3013 | !ring_is_ps_enabled(rx_ring)) { |
| 3014 | rx_ring->rx_buf_len = |
| 3015 | IXGBE_FCOE_JUMBO_FRAME_SIZE; |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 3016 | } |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 3017 | } |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 3018 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3019 | } |
| 3020 | |
| 3021 | } |
| 3022 | |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 3023 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
| 3024 | { |
| 3025 | struct ixgbe_hw *hw = &adapter->hw; |
| 3026 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); |
| 3027 | |
| 3028 | switch (hw->mac.type) { |
| 3029 | case ixgbe_mac_82598EB: |
| 3030 | /* |
| 3031 | * For VMDq support of different descriptor types or |
| 3032 | * buffer sizes through the use of multiple SRRCTL |
| 3033 | * registers, RDRXCTL.MVMEN must be set to 1 |
| 3034 | * |
| 3035 | * also, the manual doesn't mention it clearly but DCA hints |
| 3036 | * will only use queue 0's tags unless this bit is set. Side |
| 3037 | * effects of setting this bit are only that SRRCTL must be |
| 3038 | * fully programmed [0..15] |
| 3039 | */ |
| 3040 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; |
| 3041 | break; |
| 3042 | case ixgbe_mac_82599EB: |
| 3043 | /* Disable RSC for ACK packets */ |
| 3044 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, |
| 3045 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); |
| 3046 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; |
| 3047 | /* hardware requires some bits to be set by default */ |
| 3048 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); |
| 3049 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; |
| 3050 | break; |
| 3051 | default: |
| 3052 | /* We should do nothing since we don't know this hardware */ |
| 3053 | return; |
| 3054 | } |
| 3055 | |
| 3056 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); |
| 3057 | } |
| 3058 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3059 | /** |
| 3060 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset |
| 3061 | * @adapter: board private structure |
| 3062 | * |
| 3063 | * Configure the Rx unit of the MAC after a reset. |
| 3064 | **/ |
| 3065 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) |
| 3066 | { |
| 3067 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3068 | int i; |
| 3069 | u32 rxctrl; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3070 | |
| 3071 | /* disable receives while setting up the descriptors */ |
| 3072 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
| 3073 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); |
| 3074 | |
| 3075 | ixgbe_setup_psrtype(adapter); |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 3076 | ixgbe_setup_rdrxctl(adapter); |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3077 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3078 | /* Program registers for the distribution of queues */ |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 3079 | ixgbe_setup_mrqc(adapter); |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 3080 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3081 | ixgbe_set_uta(adapter); |
| 3082 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3083 | /* set_rx_buffer_len must be called before ring initialization */ |
| 3084 | ixgbe_set_rx_buffer_len(adapter); |
| 3085 | |
| 3086 | /* |
| 3087 | * Setup the HW Rx Head and Tail Descriptor Pointers and |
| 3088 | * the Base and Length of the Rx Descriptor Ring |
| 3089 | */ |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3090 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 3091 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 3092 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3093 | /* disable drop enable for 82598 parts */ |
| 3094 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3095 | rxctrl |= IXGBE_RXCTRL_DMBYPS; |
| 3096 | |
| 3097 | /* enable all receives */ |
| 3098 | rxctrl |= IXGBE_RXCTRL_RXEN; |
| 3099 | hw->mac.ops.enable_rx_dma(hw, rxctrl); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3100 | } |
| 3101 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3102 | static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
| 3103 | { |
| 3104 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3105 | struct ixgbe_hw *hw = &adapter->hw; |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3106 | int pool_ndx = adapter->num_vfs; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3107 | |
| 3108 | /* add VID to filter table */ |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3109 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3110 | set_bit(vid, adapter->active_vlans); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3111 | } |
| 3112 | |
| 3113 | static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) |
| 3114 | { |
| 3115 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3116 | struct ixgbe_hw *hw = &adapter->hw; |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3117 | int pool_ndx = adapter->num_vfs; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3118 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3119 | /* remove VID from filter table */ |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3120 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3121 | clear_bit(vid, adapter->active_vlans); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3122 | } |
| 3123 | |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3124 | /** |
| 3125 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering |
| 3126 | * @adapter: driver data |
| 3127 | */ |
| 3128 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) |
| 3129 | { |
| 3130 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3131 | u32 vlnctrl; |
| 3132 | |
| 3133 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3134 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
| 3135 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3136 | } |
| 3137 | |
| 3138 | /** |
| 3139 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering |
| 3140 | * @adapter: driver data |
| 3141 | */ |
| 3142 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) |
| 3143 | { |
| 3144 | struct ixgbe_hw *hw = &adapter->hw; |
| 3145 | u32 vlnctrl; |
| 3146 | |
| 3147 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3148 | vlnctrl |= IXGBE_VLNCTRL_VFE; |
| 3149 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; |
| 3150 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3151 | } |
| 3152 | |
| 3153 | /** |
| 3154 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping |
| 3155 | * @adapter: driver data |
| 3156 | */ |
| 3157 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) |
| 3158 | { |
| 3159 | struct ixgbe_hw *hw = &adapter->hw; |
| 3160 | u32 vlnctrl; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3161 | int i, j; |
| 3162 | |
| 3163 | switch (hw->mac.type) { |
| 3164 | case ixgbe_mac_82598EB: |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3165 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3166 | vlnctrl &= ~IXGBE_VLNCTRL_VME; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3167 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3168 | break; |
| 3169 | case ixgbe_mac_82599EB: |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3170 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 3171 | j = adapter->rx_ring[i]->reg_idx; |
| 3172 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
| 3173 | vlnctrl &= ~IXGBE_RXDCTL_VME; |
| 3174 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); |
| 3175 | } |
| 3176 | break; |
| 3177 | default: |
| 3178 | break; |
| 3179 | } |
| 3180 | } |
| 3181 | |
| 3182 | /** |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3183 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3184 | * @adapter: driver data |
| 3185 | */ |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3186 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3187 | { |
| 3188 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3189 | u32 vlnctrl; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3190 | int i, j; |
| 3191 | |
| 3192 | switch (hw->mac.type) { |
| 3193 | case ixgbe_mac_82598EB: |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3194 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3195 | vlnctrl |= IXGBE_VLNCTRL_VME; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3196 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3197 | break; |
| 3198 | case ixgbe_mac_82599EB: |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3199 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 3200 | j = adapter->rx_ring[i]->reg_idx; |
| 3201 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
| 3202 | vlnctrl |= IXGBE_RXDCTL_VME; |
| 3203 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); |
| 3204 | } |
| 3205 | break; |
| 3206 | default: |
| 3207 | break; |
| 3208 | } |
| 3209 | } |
| 3210 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3211 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
| 3212 | { |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3213 | u16 vid; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3214 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3215 | ixgbe_vlan_rx_add_vid(adapter->netdev, 0); |
| 3216 | |
| 3217 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) |
| 3218 | ixgbe_vlan_rx_add_vid(adapter->netdev, vid); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3219 | } |
| 3220 | |
| 3221 | /** |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3222 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table |
| 3223 | * @netdev: network interface device structure |
| 3224 | * |
| 3225 | * Writes unicast address list to the RAR table. |
| 3226 | * Returns: -ENOMEM on failure/insufficient address space |
| 3227 | * 0 on no addresses written |
| 3228 | * X on writing X addresses to the RAR table |
| 3229 | **/ |
| 3230 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) |
| 3231 | { |
| 3232 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3233 | struct ixgbe_hw *hw = &adapter->hw; |
| 3234 | unsigned int vfn = adapter->num_vfs; |
| 3235 | unsigned int rar_entries = hw->mac.num_rar_entries - (vfn + 1); |
| 3236 | int count = 0; |
| 3237 | |
| 3238 | /* return ENOMEM indicating insufficient memory for addresses */ |
| 3239 | if (netdev_uc_count(netdev) > rar_entries) |
| 3240 | return -ENOMEM; |
| 3241 | |
| 3242 | if (!netdev_uc_empty(netdev) && rar_entries) { |
| 3243 | struct netdev_hw_addr *ha; |
| 3244 | /* return error if we do not support writing to RAR table */ |
| 3245 | if (!hw->mac.ops.set_rar) |
| 3246 | return -ENOMEM; |
| 3247 | |
| 3248 | netdev_for_each_uc_addr(ha, netdev) { |
| 3249 | if (!rar_entries) |
| 3250 | break; |
| 3251 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, |
| 3252 | vfn, IXGBE_RAH_AV); |
| 3253 | count++; |
| 3254 | } |
| 3255 | } |
| 3256 | /* write the addresses in reverse order to avoid write combining */ |
| 3257 | for (; rar_entries > 0 ; rar_entries--) |
| 3258 | hw->mac.ops.clear_rar(hw, rar_entries); |
| 3259 | |
| 3260 | return count; |
| 3261 | } |
| 3262 | |
| 3263 | /** |
Christopher Leech | 2c5645c | 2008-08-26 04:27:02 -0700 | [diff] [blame] | 3264 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3265 | * @netdev: network interface device structure |
| 3266 | * |
Christopher Leech | 2c5645c | 2008-08-26 04:27:02 -0700 | [diff] [blame] | 3267 | * The set_rx_method entry point is called whenever the unicast/multicast |
| 3268 | * address list or the network interface flags are updated. This routine is |
| 3269 | * responsible for configuring the hardware for proper unicast, multicast and |
| 3270 | * promiscuous mode. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3271 | **/ |
Greg Rose | 7f87047 | 2010-01-09 02:25:29 +0000 | [diff] [blame] | 3272 | void ixgbe_set_rx_mode(struct net_device *netdev) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3273 | { |
| 3274 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3275 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3276 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
| 3277 | int count; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3278 | |
| 3279 | /* Check for Promiscuous and All Multicast modes */ |
| 3280 | |
| 3281 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 3282 | |
Alexander Duyck | f5dc442 | 2010-08-19 13:36:49 +0000 | [diff] [blame] | 3283 | /* set all bits that we expect to always be set */ |
| 3284 | fctrl |= IXGBE_FCTRL_BAM; |
| 3285 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ |
| 3286 | fctrl |= IXGBE_FCTRL_PMCF; |
| 3287 | |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3288 | /* clear the bits we are changing the status of */ |
| 3289 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
| 3290 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3291 | if (netdev->flags & IFF_PROMISC) { |
Emil Tantilov | e433ea1 | 2010-05-13 17:33:00 +0000 | [diff] [blame] | 3292 | hw->addr_ctrl.user_set_promisc = true; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3293 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3294 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3295 | /* don't hardware filter vlans in promisc mode */ |
| 3296 | ixgbe_vlan_filter_disable(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3297 | } else { |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3298 | if (netdev->flags & IFF_ALLMULTI) { |
| 3299 | fctrl |= IXGBE_FCTRL_MPE; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3300 | vmolr |= IXGBE_VMOLR_MPE; |
| 3301 | } else { |
| 3302 | /* |
| 3303 | * Write addresses to the MTA, if the attempt fails |
| 3304 | * then we should just turn on promiscous mode so |
| 3305 | * that we can at least receive multicast traffic |
| 3306 | */ |
| 3307 | hw->mac.ops.update_mc_addr_list(hw, netdev); |
| 3308 | vmolr |= IXGBE_VMOLR_ROMPE; |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3309 | } |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3310 | ixgbe_vlan_filter_enable(adapter); |
Emil Tantilov | e433ea1 | 2010-05-13 17:33:00 +0000 | [diff] [blame] | 3311 | hw->addr_ctrl.user_set_promisc = false; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3312 | /* |
| 3313 | * Write addresses to available RAR registers, if there is not |
| 3314 | * sufficient space to store all the addresses then enable |
| 3315 | * unicast promiscous mode |
| 3316 | */ |
| 3317 | count = ixgbe_write_uc_addr_list(netdev); |
| 3318 | if (count < 0) { |
| 3319 | fctrl |= IXGBE_FCTRL_UPE; |
| 3320 | vmolr |= IXGBE_VMOLR_ROPE; |
| 3321 | } |
| 3322 | } |
| 3323 | |
| 3324 | if (adapter->num_vfs) { |
| 3325 | ixgbe_restore_vf_multicasts(adapter); |
| 3326 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) & |
| 3327 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
| 3328 | IXGBE_VMOLR_ROPE); |
| 3329 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3330 | } |
| 3331 | |
| 3332 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3333 | |
| 3334 | if (netdev->features & NETIF_F_HW_VLAN_RX) |
| 3335 | ixgbe_vlan_strip_enable(adapter); |
| 3336 | else |
| 3337 | ixgbe_vlan_strip_disable(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3338 | } |
| 3339 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3340 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
| 3341 | { |
| 3342 | int q_idx; |
| 3343 | struct ixgbe_q_vector *q_vector; |
| 3344 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 3345 | |
| 3346 | /* legacy and MSI only use one vector */ |
| 3347 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
| 3348 | q_vectors = 1; |
| 3349 | |
| 3350 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3351 | struct napi_struct *napi; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 3352 | q_vector = adapter->q_vector[q_idx]; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3353 | napi = &q_vector->napi; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 3354 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 3355 | if (!q_vector->rxr_count || !q_vector->txr_count) { |
| 3356 | if (q_vector->txr_count == 1) |
| 3357 | napi->poll = &ixgbe_clean_txonly; |
| 3358 | else if (q_vector->rxr_count == 1) |
| 3359 | napi->poll = &ixgbe_clean_rxonly; |
| 3360 | } |
| 3361 | } |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3362 | |
| 3363 | napi_enable(napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3364 | } |
| 3365 | } |
| 3366 | |
| 3367 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) |
| 3368 | { |
| 3369 | int q_idx; |
| 3370 | struct ixgbe_q_vector *q_vector; |
| 3371 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 3372 | |
| 3373 | /* legacy and MSI only use one vector */ |
| 3374 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
| 3375 | q_vectors = 1; |
| 3376 | |
| 3377 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 3378 | q_vector = adapter->q_vector[q_idx]; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3379 | napi_disable(&q_vector->napi); |
| 3380 | } |
| 3381 | } |
| 3382 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 3383 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3384 | /* |
| 3385 | * ixgbe_configure_dcb - Configure DCB hardware |
| 3386 | * @adapter: ixgbe adapter struct |
| 3387 | * |
| 3388 | * This is called by the driver on open to configure the DCB hardware. |
| 3389 | * This is also called by the gennetlink interface when reconfiguring |
| 3390 | * the DCB state. |
| 3391 | */ |
| 3392 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) |
| 3393 | { |
| 3394 | struct ixgbe_hw *hw = &adapter->hw; |
John Fastabend | 9806307 | 2010-10-28 00:59:57 +0000 | [diff] [blame] | 3395 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3396 | |
Alexander Duyck | 67ebd79 | 2010-08-19 13:34:04 +0000 | [diff] [blame] | 3397 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
| 3398 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3399 | netif_set_gso_max_size(adapter->netdev, 65536); |
| 3400 | return; |
| 3401 | } |
| 3402 | |
| 3403 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3404 | netif_set_gso_max_size(adapter->netdev, 32768); |
| 3405 | |
John Fastabend | 9806307 | 2010-10-28 00:59:57 +0000 | [diff] [blame] | 3406 | #ifdef CONFIG_FCOE |
| 3407 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
| 3408 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); |
| 3409 | #endif |
| 3410 | |
John Fastabend | 80ab193 | 2010-11-16 19:26:45 -0800 | [diff] [blame] | 3411 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
John Fastabend | 9806307 | 2010-10-28 00:59:57 +0000 | [diff] [blame] | 3412 | DCB_TX_CONFIG); |
John Fastabend | 80ab193 | 2010-11-16 19:26:45 -0800 | [diff] [blame] | 3413 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
John Fastabend | 9806307 | 2010-10-28 00:59:57 +0000 | [diff] [blame] | 3414 | DCB_RX_CONFIG); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3415 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3416 | /* Enable VLAN tag insert/strip */ |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3417 | adapter->netdev->features |= NETIF_F_HW_VLAN_RX; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3418 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3419 | hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); |
Alexander Duyck | 01fa7d9 | 2010-11-16 19:26:53 -0800 | [diff] [blame] | 3420 | |
| 3421 | /* reconfigure the hardware */ |
| 3422 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3423 | } |
| 3424 | |
| 3425 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3426 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
| 3427 | { |
| 3428 | struct net_device *netdev = adapter->netdev; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3429 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3430 | int i; |
| 3431 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 3432 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 67ebd79 | 2010-08-19 13:34:04 +0000 | [diff] [blame] | 3433 | ixgbe_configure_dcb(adapter); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3434 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3435 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3436 | ixgbe_set_rx_mode(netdev); |
| 3437 | ixgbe_restore_vlan(adapter); |
| 3438 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 3439 | #ifdef IXGBE_FCOE |
| 3440 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
| 3441 | ixgbe_configure_fcoe(adapter); |
| 3442 | |
| 3443 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3444 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
| 3445 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3446 | adapter->tx_ring[i]->atr_sample_rate = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3447 | adapter->atr_sample_rate; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3448 | ixgbe_init_fdir_signature_82599(hw, adapter->fdir_pballoc); |
| 3449 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
| 3450 | ixgbe_init_fdir_perfect_82599(hw, adapter->fdir_pballoc); |
| 3451 | } |
Alexander Duyck | 933d41f | 2010-09-07 21:34:29 +0000 | [diff] [blame] | 3452 | ixgbe_configure_virtualization(adapter); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3453 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3454 | ixgbe_configure_tx(adapter); |
| 3455 | ixgbe_configure_rx(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3456 | } |
| 3457 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3458 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
| 3459 | { |
| 3460 | switch (hw->phy.type) { |
| 3461 | case ixgbe_phy_sfp_avago: |
| 3462 | case ixgbe_phy_sfp_ftl: |
| 3463 | case ixgbe_phy_sfp_intel: |
| 3464 | case ixgbe_phy_sfp_unknown: |
Don Skidmore | ea0a04d | 2010-05-18 16:00:13 +0000 | [diff] [blame] | 3465 | case ixgbe_phy_sfp_passive_tyco: |
| 3466 | case ixgbe_phy_sfp_passive_unknown: |
| 3467 | case ixgbe_phy_sfp_active_unknown: |
| 3468 | case ixgbe_phy_sfp_ftl_active: |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3469 | return true; |
| 3470 | default: |
| 3471 | return false; |
| 3472 | } |
| 3473 | } |
| 3474 | |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3475 | /** |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3476 | * ixgbe_sfp_link_config - set up SFP+ link |
| 3477 | * @adapter: pointer to private adapter struct |
| 3478 | **/ |
| 3479 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) |
| 3480 | { |
| 3481 | struct ixgbe_hw *hw = &adapter->hw; |
| 3482 | |
| 3483 | if (hw->phy.multispeed_fiber) { |
| 3484 | /* |
| 3485 | * In multispeed fiber setups, the device may not have |
| 3486 | * had a physical connection when the driver loaded. |
| 3487 | * If that's the case, the initial link configuration |
| 3488 | * couldn't get the MAC into 10G or 1G mode, so we'll |
| 3489 | * never have a link status change interrupt fire. |
| 3490 | * We need to try and force an autonegotiation |
| 3491 | * session, then bring up link. |
| 3492 | */ |
| 3493 | hw->mac.ops.setup_sfp(hw); |
| 3494 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) |
| 3495 | schedule_work(&adapter->multispeed_fiber_task); |
| 3496 | } else { |
| 3497 | /* |
| 3498 | * Direct Attach Cu and non-multispeed fiber modules |
| 3499 | * still need to be configured properly prior to |
| 3500 | * attempting link. |
| 3501 | */ |
| 3502 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_MOD_TASK)) |
| 3503 | schedule_work(&adapter->sfp_config_module_task); |
| 3504 | } |
| 3505 | } |
| 3506 | |
| 3507 | /** |
| 3508 | * ixgbe_non_sfp_link_config - set up non-SFP+ link |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3509 | * @hw: pointer to private hardware struct |
| 3510 | * |
| 3511 | * Returns 0 on success, negative on failure |
| 3512 | **/ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3513 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3514 | { |
| 3515 | u32 autoneg; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 3516 | bool negotiation, link_up = false; |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3517 | u32 ret = IXGBE_ERR_LINK_SETUP; |
| 3518 | |
| 3519 | if (hw->mac.ops.check_link) |
| 3520 | ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false); |
| 3521 | |
| 3522 | if (ret) |
| 3523 | goto link_cfg_out; |
| 3524 | |
| 3525 | if (hw->mac.ops.get_link_capabilities) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3526 | ret = hw->mac.ops.get_link_capabilities(hw, &autoneg, |
| 3527 | &negotiation); |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3528 | if (ret) |
| 3529 | goto link_cfg_out; |
| 3530 | |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 3531 | if (hw->mac.ops.setup_link) |
| 3532 | ret = hw->mac.ops.setup_link(hw, autoneg, negotiation, link_up); |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3533 | link_cfg_out: |
| 3534 | return ret; |
| 3535 | } |
| 3536 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3537 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3538 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3539 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3540 | u32 gpie = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3541 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 3542 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3543 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
| 3544 | IXGBE_GPIE_OCD; |
| 3545 | gpie |= IXGBE_GPIE_EIAME; |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 3546 | /* |
| 3547 | * use EIAM to auto-mask when MSI-X interrupt is asserted |
| 3548 | * this saves a register write for every interrupt |
| 3549 | */ |
| 3550 | switch (hw->mac.type) { |
| 3551 | case ixgbe_mac_82598EB: |
| 3552 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); |
| 3553 | break; |
| 3554 | default: |
| 3555 | case ixgbe_mac_82599EB: |
| 3556 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
| 3557 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); |
| 3558 | break; |
| 3559 | } |
| 3560 | } else { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3561 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
| 3562 | * specifically only auto mask tx and rx interrupts */ |
| 3563 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3564 | } |
| 3565 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3566 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
| 3567 | /* gpie |= IXGBE_GPIE_EIMEN; */ |
| 3568 | |
| 3569 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
| 3570 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; |
| 3571 | gpie |= IXGBE_GPIE_VTMODE_64; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 3572 | } |
| 3573 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3574 | /* Enable fan failure interrupt */ |
| 3575 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 3576 | gpie |= IXGBE_SDP1_GPIEN; |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 3577 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3578 | if (hw->mac.type == ixgbe_mac_82599EB) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3579 | gpie |= IXGBE_SDP1_GPIEN; |
| 3580 | gpie |= IXGBE_SDP2_GPIEN; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3581 | |
| 3582 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); |
| 3583 | } |
| 3584 | |
| 3585 | static int ixgbe_up_complete(struct ixgbe_adapter *adapter) |
| 3586 | { |
| 3587 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3588 | int err; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3589 | u32 ctrl_ext; |
| 3590 | |
| 3591 | ixgbe_get_hw_control(adapter); |
| 3592 | ixgbe_setup_gpie(adapter); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3593 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3594 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
| 3595 | ixgbe_configure_msix(adapter); |
| 3596 | else |
| 3597 | ixgbe_configure_msi_and_legacy(adapter); |
| 3598 | |
Peter Waskiewicz | 61fac74 | 2010-04-27 00:38:15 +0000 | [diff] [blame] | 3599 | /* enable the optics */ |
| 3600 | if (hw->phy.multispeed_fiber) |
| 3601 | hw->mac.ops.enable_tx_laser(hw); |
| 3602 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3603 | clear_bit(__IXGBE_DOWN, &adapter->state); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3604 | ixgbe_napi_enable_all(adapter); |
| 3605 | |
Alexander Duyck | 73c4b7c | 2010-11-16 19:26:57 -0800 | [diff] [blame] | 3606 | if (ixgbe_is_sfp(hw)) { |
| 3607 | ixgbe_sfp_link_config(adapter); |
| 3608 | } else { |
| 3609 | err = ixgbe_non_sfp_link_config(hw); |
| 3610 | if (err) |
| 3611 | e_err(probe, "link_config FAILED %d\n", err); |
| 3612 | } |
| 3613 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3614 | /* clear any pending interrupts, may auto mask */ |
| 3615 | IXGBE_READ_REG(hw, IXGBE_EICR); |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 3616 | ixgbe_irq_enable(adapter, true, true); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3617 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3618 | /* |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 3619 | * If this adapter has a fan, check to see if we had a failure |
| 3620 | * before we enabled the interrupt. |
| 3621 | */ |
| 3622 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { |
| 3623 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| 3624 | if (esdp & IXGBE_ESDP_SDP1) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 3625 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 3626 | } |
| 3627 | |
| 3628 | /* |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3629 | * For hot-pluggable SFP+ devices, a new SFP+ module may have |
Don Skidmore | 19343de | 2009-07-02 12:50:31 +0000 | [diff] [blame] | 3630 | * arrived before interrupts were enabled but after probe. Such |
| 3631 | * devices wouldn't have their type identified yet. We need to |
| 3632 | * kick off the SFP+ module setup first, then try to bring up link. |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3633 | * If we're not hot-pluggable SFP+, we just need to configure link |
| 3634 | * and bring it up. |
| 3635 | */ |
Alexander Duyck | 73c4b7c | 2010-11-16 19:26:57 -0800 | [diff] [blame] | 3636 | if (hw->phy.type == ixgbe_phy_unknown) |
| 3637 | schedule_work(&adapter->sfp_config_module_task); |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3638 | |
Peter P Waskiewicz Jr | 1da100b | 2009-01-19 16:55:03 -0800 | [diff] [blame] | 3639 | /* enable transmits */ |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3640 | netif_tx_start_all_queues(adapter->netdev); |
Peter P Waskiewicz Jr | 1da100b | 2009-01-19 16:55:03 -0800 | [diff] [blame] | 3641 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3642 | /* bring the link up in the watchdog, this could race with our first |
| 3643 | * link up interrupt but shouldn't be a problem */ |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 3644 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 3645 | adapter->link_check_timeout = jiffies; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3646 | mod_timer(&adapter->watchdog_timer, jiffies); |
Greg Rose | c920569 | 2010-01-22 22:46:22 +0000 | [diff] [blame] | 3647 | |
| 3648 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ |
| 3649 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); |
| 3650 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; |
| 3651 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); |
| 3652 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3653 | return 0; |
| 3654 | } |
| 3655 | |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3656 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
| 3657 | { |
| 3658 | WARN_ON(in_interrupt()); |
| 3659 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
| 3660 | msleep(1); |
| 3661 | ixgbe_down(adapter); |
Greg Rose | 5809a1a | 2010-03-24 09:36:08 +0000 | [diff] [blame] | 3662 | /* |
| 3663 | * If SR-IOV enabled then wait a bit before bringing the adapter |
| 3664 | * back up to give the VFs time to respond to the reset. The |
| 3665 | * two second wait is based upon the watchdog timer cycle in |
| 3666 | * the VF driver. |
| 3667 | */ |
| 3668 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 3669 | msleep(2000); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3670 | ixgbe_up(adapter); |
| 3671 | clear_bit(__IXGBE_RESETTING, &adapter->state); |
| 3672 | } |
| 3673 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3674 | int ixgbe_up(struct ixgbe_adapter *adapter) |
| 3675 | { |
| 3676 | /* hardware has been reset, we need to reload some things */ |
| 3677 | ixgbe_configure(adapter); |
| 3678 | |
| 3679 | return ixgbe_up_complete(adapter); |
| 3680 | } |
| 3681 | |
| 3682 | void ixgbe_reset(struct ixgbe_adapter *adapter) |
| 3683 | { |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3684 | struct ixgbe_hw *hw = &adapter->hw; |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 3685 | int err; |
| 3686 | |
| 3687 | err = hw->mac.ops.init_hw(hw); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3688 | switch (err) { |
| 3689 | case 0: |
| 3690 | case IXGBE_ERR_SFP_NOT_PRESENT: |
| 3691 | break; |
| 3692 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3693 | e_dev_err("master disable timed out\n"); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3694 | break; |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 3695 | case IXGBE_ERR_EEPROM_VERSION: |
| 3696 | /* We are running on a pre-production device, log a warning */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3697 | e_dev_warn("This device is a pre-production adapter/LOM. " |
| 3698 | "Please be aware there may be issuesassociated with " |
| 3699 | "your hardware. If you are experiencing problems " |
| 3700 | "please contact your Intel or hardware " |
| 3701 | "representative who provided you with this " |
| 3702 | "hardware.\n"); |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 3703 | break; |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3704 | default: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3705 | e_dev_err("Hardware Error: %d\n", err); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3706 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3707 | |
| 3708 | /* reprogram the RAR[0] in case user changed it. */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 3709 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
| 3710 | IXGBE_RAH_AV); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3711 | } |
| 3712 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3713 | /** |
| 3714 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3715 | * @rx_ring: ring to free buffers from |
| 3716 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3717 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3718 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3719 | struct device *dev = rx_ring->dev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3720 | unsigned long size; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3721 | u16 i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3722 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3723 | /* ring already cleared, nothing to do */ |
| 3724 | if (!rx_ring->rx_buffer_info) |
| 3725 | return; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3726 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3727 | /* Free all the Rx ring sk_buffs */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3728 | for (i = 0; i < rx_ring->count; i++) { |
| 3729 | struct ixgbe_rx_buffer *rx_buffer_info; |
| 3730 | |
| 3731 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
| 3732 | if (rx_buffer_info->dma) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3733 | dma_unmap_single(rx_ring->dev, rx_buffer_info->dma, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3734 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3735 | DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3736 | rx_buffer_info->dma = 0; |
| 3737 | } |
| 3738 | if (rx_buffer_info->skb) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3739 | struct sk_buff *skb = rx_buffer_info->skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3740 | rx_buffer_info->skb = NULL; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3741 | do { |
| 3742 | struct sk_buff *this = skb; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 3743 | if (IXGBE_RSC_CB(this)->delay_unmap) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3744 | dma_unmap_single(dev, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3745 | IXGBE_RSC_CB(this)->dma, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3746 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3747 | DMA_FROM_DEVICE); |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 3748 | IXGBE_RSC_CB(this)->dma = 0; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 3749 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 3750 | } |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3751 | skb = skb->prev; |
| 3752 | dev_kfree_skb(this); |
| 3753 | } while (skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3754 | } |
| 3755 | if (!rx_buffer_info->page) |
| 3756 | continue; |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 3757 | if (rx_buffer_info->page_dma) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3758 | dma_unmap_page(dev, rx_buffer_info->page_dma, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3759 | PAGE_SIZE / 2, DMA_FROM_DEVICE); |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 3760 | rx_buffer_info->page_dma = 0; |
| 3761 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3762 | put_page(rx_buffer_info->page); |
| 3763 | rx_buffer_info->page = NULL; |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 3764 | rx_buffer_info->page_offset = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3765 | } |
| 3766 | |
| 3767 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
| 3768 | memset(rx_ring->rx_buffer_info, 0, size); |
| 3769 | |
| 3770 | /* Zero out the descriptor ring */ |
| 3771 | memset(rx_ring->desc, 0, rx_ring->size); |
| 3772 | |
| 3773 | rx_ring->next_to_clean = 0; |
| 3774 | rx_ring->next_to_use = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3775 | } |
| 3776 | |
| 3777 | /** |
| 3778 | * ixgbe_clean_tx_ring - Free Tx Buffers |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3779 | * @tx_ring: ring to be cleaned |
| 3780 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3781 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3782 | { |
| 3783 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 3784 | unsigned long size; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3785 | u16 i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3786 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3787 | /* ring already cleared, nothing to do */ |
| 3788 | if (!tx_ring->tx_buffer_info) |
| 3789 | return; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3790 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3791 | /* Free all the Tx ring sk_buffs */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3792 | for (i = 0; i < tx_ring->count; i++) { |
| 3793 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3794 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3795 | } |
| 3796 | |
| 3797 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
| 3798 | memset(tx_ring->tx_buffer_info, 0, size); |
| 3799 | |
| 3800 | /* Zero out the descriptor ring */ |
| 3801 | memset(tx_ring->desc, 0, tx_ring->size); |
| 3802 | |
| 3803 | tx_ring->next_to_use = 0; |
| 3804 | tx_ring->next_to_clean = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3805 | } |
| 3806 | |
| 3807 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3808 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
| 3809 | * @adapter: board private structure |
| 3810 | **/ |
| 3811 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
| 3812 | { |
| 3813 | int i; |
| 3814 | |
| 3815 | for (i = 0; i < adapter->num_rx_queues; i++) |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3816 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3817 | } |
| 3818 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3819 | /** |
| 3820 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
| 3821 | * @adapter: board private structure |
| 3822 | **/ |
| 3823 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
| 3824 | { |
| 3825 | int i; |
| 3826 | |
| 3827 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 3828 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3829 | } |
| 3830 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3831 | void ixgbe_down(struct ixgbe_adapter *adapter) |
| 3832 | { |
| 3833 | struct net_device *netdev = adapter->netdev; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3834 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3835 | u32 rxctrl; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3836 | u32 txdctl; |
| 3837 | int i, j; |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 3838 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3839 | |
| 3840 | /* signal that we are down to the interrupt handler */ |
| 3841 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 3842 | |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3843 | /* disable receive for all VFs and wait one second */ |
| 3844 | if (adapter->num_vfs) { |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3845 | /* ping all the active vfs to let them know we are going down */ |
| 3846 | ixgbe_ping_all_vfs(adapter); |
Greg Rose | 581d1aa | 2010-03-24 09:36:27 +0000 | [diff] [blame] | 3847 | |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3848 | /* Disable all VFTE/VFRE TX/RX */ |
| 3849 | ixgbe_disable_tx_rx(adapter); |
Greg Rose | 581d1aa | 2010-03-24 09:36:27 +0000 | [diff] [blame] | 3850 | |
| 3851 | /* Mark all the VFs as inactive */ |
| 3852 | for (i = 0 ; i < adapter->num_vfs; i++) |
| 3853 | adapter->vfinfo[i].clear_to_send = 0; |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3854 | } |
| 3855 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3856 | /* disable receives */ |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3857 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
| 3858 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3859 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3860 | IXGBE_WRITE_FLUSH(hw); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3861 | msleep(10); |
| 3862 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3863 | netif_tx_stop_all_queues(netdev); |
| 3864 | |
Don Skidmore | 0a1f87c | 2009-09-18 09:45:43 +0000 | [diff] [blame] | 3865 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 3866 | del_timer_sync(&adapter->sfp_timer); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3867 | del_timer_sync(&adapter->watchdog_timer); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 3868 | cancel_work_sync(&adapter->watchdog_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3869 | |
John Fastabend | c0dfb90 | 2010-04-27 02:13:39 +0000 | [diff] [blame] | 3870 | netif_carrier_off(netdev); |
| 3871 | netif_tx_disable(netdev); |
| 3872 | |
| 3873 | ixgbe_irq_disable(adapter); |
| 3874 | |
| 3875 | ixgbe_napi_disable_all(adapter); |
| 3876 | |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 3877 | /* Cleanup the affinity_hint CPU mask memory and callback */ |
| 3878 | for (i = 0; i < num_q_vectors; i++) { |
| 3879 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
| 3880 | /* clear the affinity_mask in the IRQ descriptor */ |
| 3881 | irq_set_affinity_hint(adapter->msix_entries[i]. vector, NULL); |
| 3882 | /* release the CPU mask memory */ |
| 3883 | free_cpumask_var(q_vector->affinity_mask); |
| 3884 | } |
| 3885 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3886 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 3887 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 3888 | cancel_work_sync(&adapter->fdir_reinit_task); |
| 3889 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 3890 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
| 3891 | cancel_work_sync(&adapter->check_overtemp_task); |
| 3892 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3893 | /* disable transmits in the hardware now that interrupts are off */ |
| 3894 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3895 | j = adapter->tx_ring[i]->reg_idx; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3896 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
| 3897 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3898 | (txdctl & ~IXGBE_TXDCTL_ENABLE)); |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3899 | } |
PJ Waskiewicz | 8851253 | 2009-03-13 22:15:10 +0000 | [diff] [blame] | 3900 | /* Disable the Tx DMA engine on 82599 */ |
| 3901 | if (hw->mac.type == ixgbe_mac_82599EB) |
| 3902 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3903 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
| 3904 | ~IXGBE_DMATXCTL_TE)); |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3905 | |
John Fastabend | 9f756f0 | 2010-06-29 18:28:36 +0000 | [diff] [blame] | 3906 | /* power down the optics */ |
| 3907 | if (hw->phy.multispeed_fiber) |
| 3908 | hw->mac.ops.disable_tx_laser(hw); |
| 3909 | |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 3910 | /* clear n-tuple filters that are cached */ |
| 3911 | ethtool_ntuple_flush(netdev); |
| 3912 | |
Paul Larson | 6f4a0e4 | 2008-06-24 17:00:56 -0700 | [diff] [blame] | 3913 | if (!pci_channel_offline(adapter->pdev)) |
| 3914 | ixgbe_reset(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3915 | ixgbe_clean_all_tx_rings(adapter); |
| 3916 | ixgbe_clean_all_rx_rings(adapter); |
| 3917 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 3918 | #ifdef CONFIG_IXGBE_DCA |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 3919 | /* since we reset the hardware DCA settings were cleared */ |
Alexander Duyck | e35ec12 | 2009-05-21 13:07:12 +0000 | [diff] [blame] | 3920 | ixgbe_setup_dca(adapter); |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 3921 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3922 | } |
| 3923 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3924 | /** |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3925 | * ixgbe_poll - NAPI Rx polling callback |
| 3926 | * @napi: structure for representing this polling device |
| 3927 | * @budget: how many packets driver is allowed to clean |
| 3928 | * |
| 3929 | * This function is used for legacy and MSI, NAPI mode |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3930 | **/ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3931 | static int ixgbe_poll(struct napi_struct *napi, int budget) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3932 | { |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3933 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3934 | container_of(napi, struct ixgbe_q_vector, napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3935 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3936 | int tx_clean_complete, work_done = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3937 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 3938 | #ifdef CONFIG_IXGBE_DCA |
Alexander Duyck | 33cf09c | 2010-11-16 19:26:55 -0800 | [diff] [blame] | 3939 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 3940 | ixgbe_update_dca(q_vector); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 3941 | #endif |
| 3942 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3943 | tx_clean_complete = ixgbe_clean_tx_irq(q_vector, adapter->tx_ring[0]); |
| 3944 | ixgbe_clean_rx_irq(q_vector, adapter->rx_ring[0], &work_done, budget); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3945 | |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3946 | if (!tx_clean_complete) |
David S. Miller | d2c7ddd | 2008-01-15 22:43:24 -0800 | [diff] [blame] | 3947 | work_done = budget; |
| 3948 | |
David S. Miller | 53e52c7 | 2008-01-07 21:06:12 -0800 | [diff] [blame] | 3949 | /* If budget not fully consumed, exit the polling mode */ |
| 3950 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 3951 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 3952 | if (adapter->rx_itr_setting & 1) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 3953 | ixgbe_set_itr(adapter); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3954 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 3955 | ixgbe_irq_enable_queues(adapter, IXGBE_EIMS_RTX_QUEUE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3956 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3957 | return work_done; |
| 3958 | } |
| 3959 | |
| 3960 | /** |
| 3961 | * ixgbe_tx_timeout - Respond to a Tx Hang |
| 3962 | * @netdev: network interface device structure |
| 3963 | **/ |
| 3964 | static void ixgbe_tx_timeout(struct net_device *netdev) |
| 3965 | { |
| 3966 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3967 | |
| 3968 | /* Do the reset outside of interrupt context */ |
| 3969 | schedule_work(&adapter->reset_task); |
| 3970 | } |
| 3971 | |
| 3972 | static void ixgbe_reset_task(struct work_struct *work) |
| 3973 | { |
| 3974 | struct ixgbe_adapter *adapter; |
| 3975 | adapter = container_of(work, struct ixgbe_adapter, reset_task); |
| 3976 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3977 | /* If we're already down or resetting, just bail */ |
| 3978 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
| 3979 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
| 3980 | return; |
| 3981 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3982 | adapter->tx_timeout_count++; |
| 3983 | |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 3984 | ixgbe_dump(adapter); |
| 3985 | netdev_err(adapter->netdev, "Reset adapter\n"); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3986 | ixgbe_reinit_locked(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3987 | } |
| 3988 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3989 | #ifdef CONFIG_IXGBE_DCB |
| 3990 | static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 3991 | { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3992 | bool ret = false; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 3993 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_DCB]; |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 3994 | |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 3995 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) |
| 3996 | return ret; |
| 3997 | |
| 3998 | f->mask = 0x7 << 3; |
| 3999 | adapter->num_rx_queues = f->indices; |
| 4000 | adapter->num_tx_queues = f->indices; |
| 4001 | ret = true; |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 4002 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4003 | return ret; |
| 4004 | } |
| 4005 | #endif |
| 4006 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4007 | /** |
| 4008 | * ixgbe_set_rss_queues: Allocate queues for RSS |
| 4009 | * @adapter: board private structure to initialize |
| 4010 | * |
| 4011 | * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try |
| 4012 | * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. |
| 4013 | * |
| 4014 | **/ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4015 | static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) |
| 4016 | { |
| 4017 | bool ret = false; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 4018 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_RSS]; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4019 | |
| 4020 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 4021 | f->mask = 0xF; |
| 4022 | adapter->num_rx_queues = f->indices; |
| 4023 | adapter->num_tx_queues = f->indices; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4024 | ret = true; |
| 4025 | } else { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4026 | ret = false; |
| 4027 | } |
| 4028 | |
| 4029 | return ret; |
| 4030 | } |
| 4031 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4032 | /** |
| 4033 | * ixgbe_set_fdir_queues: Allocate queues for Flow Director |
| 4034 | * @adapter: board private structure to initialize |
| 4035 | * |
| 4036 | * Flow Director is an advanced Rx filter, attempting to get Rx flows back |
| 4037 | * to the original CPU that initiated the Tx session. This runs in addition |
| 4038 | * to RSS, so if a packet doesn't match an FDIR filter, we can still spread the |
| 4039 | * Rx load across CPUs using RSS. |
| 4040 | * |
| 4041 | **/ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4042 | static inline bool ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4043 | { |
| 4044 | bool ret = false; |
| 4045 | struct ixgbe_ring_feature *f_fdir = &adapter->ring_feature[RING_F_FDIR]; |
| 4046 | |
| 4047 | f_fdir->indices = min((int)num_online_cpus(), f_fdir->indices); |
| 4048 | f_fdir->mask = 0; |
| 4049 | |
| 4050 | /* Flow Director must have RSS enabled */ |
| 4051 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && |
| 4052 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 4053 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)))) { |
| 4054 | adapter->num_tx_queues = f_fdir->indices; |
| 4055 | adapter->num_rx_queues = f_fdir->indices; |
| 4056 | ret = true; |
| 4057 | } else { |
| 4058 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4059 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4060 | } |
| 4061 | return ret; |
| 4062 | } |
| 4063 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4064 | #ifdef IXGBE_FCOE |
| 4065 | /** |
| 4066 | * ixgbe_set_fcoe_queues: Allocate queues for Fiber Channel over Ethernet (FCoE) |
| 4067 | * @adapter: board private structure to initialize |
| 4068 | * |
| 4069 | * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges. |
| 4070 | * The ring feature mask is not used as a mask for FCoE, as it can take any 8 |
| 4071 | * rx queues out of the max number of rx queues, instead, it is used as the |
| 4072 | * index of the first rx queue used by FCoE. |
| 4073 | * |
| 4074 | **/ |
| 4075 | static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter) |
| 4076 | { |
| 4077 | bool ret = false; |
| 4078 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
| 4079 | |
| 4080 | f->indices = min((int)num_online_cpus(), f->indices); |
| 4081 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4082 | adapter->num_rx_queues = 1; |
| 4083 | adapter->num_tx_queues = 1; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4084 | #ifdef CONFIG_IXGBE_DCB |
| 4085 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4086 | e_info(probe, "FCoE enabled with DCB\n"); |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4087 | ixgbe_set_dcb_queues(adapter); |
| 4088 | } |
| 4089 | #endif |
| 4090 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4091 | e_info(probe, "FCoE enabled with RSS\n"); |
Yi Zou | 8faa2a7 | 2009-07-09 02:29:50 +0000 | [diff] [blame] | 4092 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4093 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
| 4094 | ixgbe_set_fdir_queues(adapter); |
| 4095 | else |
| 4096 | ixgbe_set_rss_queues(adapter); |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4097 | } |
| 4098 | /* adding FCoE rx rings to the end */ |
| 4099 | f->mask = adapter->num_rx_queues; |
| 4100 | adapter->num_rx_queues += f->indices; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4101 | adapter->num_tx_queues += f->indices; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4102 | |
| 4103 | ret = true; |
| 4104 | } |
| 4105 | |
| 4106 | return ret; |
| 4107 | } |
| 4108 | |
| 4109 | #endif /* IXGBE_FCOE */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4110 | /** |
| 4111 | * ixgbe_set_sriov_queues: Allocate queues for IOV use |
| 4112 | * @adapter: board private structure to initialize |
| 4113 | * |
| 4114 | * IOV doesn't actually use anything, so just NAK the |
| 4115 | * request for now and let the other queue routines |
| 4116 | * figure out what to do. |
| 4117 | */ |
| 4118 | static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter) |
| 4119 | { |
| 4120 | return false; |
| 4121 | } |
| 4122 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4123 | /* |
| 4124 | * ixgbe_set_num_queues: Allocate queues for device, feature dependant |
| 4125 | * @adapter: board private structure to initialize |
| 4126 | * |
| 4127 | * This is the top level queue allocation routine. The order here is very |
| 4128 | * important, starting with the "most" number of features turned on at once, |
| 4129 | * and ending with the smallest set of features. This way large combinations |
| 4130 | * can be allocated if they're turned on, and smaller combinations are the |
| 4131 | * fallthrough conditions. |
| 4132 | * |
| 4133 | **/ |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4134 | static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4135 | { |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4136 | /* Start with base case */ |
| 4137 | adapter->num_rx_queues = 1; |
| 4138 | adapter->num_tx_queues = 1; |
| 4139 | adapter->num_rx_pools = adapter->num_rx_queues; |
| 4140 | adapter->num_rx_queues_per_pool = 1; |
| 4141 | |
| 4142 | if (ixgbe_set_sriov_queues(adapter)) |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4143 | goto done; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4144 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4145 | #ifdef IXGBE_FCOE |
| 4146 | if (ixgbe_set_fcoe_queues(adapter)) |
| 4147 | goto done; |
| 4148 | |
| 4149 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4150 | #ifdef CONFIG_IXGBE_DCB |
| 4151 | if (ixgbe_set_dcb_queues(adapter)) |
Wu Fengguang | af22ab1 | 2009-04-14 21:54:07 -0700 | [diff] [blame] | 4152 | goto done; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4153 | |
| 4154 | #endif |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4155 | if (ixgbe_set_fdir_queues(adapter)) |
| 4156 | goto done; |
| 4157 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4158 | if (ixgbe_set_rss_queues(adapter)) |
Wu Fengguang | af22ab1 | 2009-04-14 21:54:07 -0700 | [diff] [blame] | 4159 | goto done; |
| 4160 | |
| 4161 | /* fallback to base case */ |
| 4162 | adapter->num_rx_queues = 1; |
| 4163 | adapter->num_tx_queues = 1; |
| 4164 | |
| 4165 | done: |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4166 | /* Notify the stack of the (possibly) reduced queue counts. */ |
John Fastabend | f0796d5 | 2010-07-01 13:21:57 +0000 | [diff] [blame] | 4167 | netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues); |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4168 | return netif_set_real_num_rx_queues(adapter->netdev, |
| 4169 | adapter->num_rx_queues); |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 4170 | } |
| 4171 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4172 | static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4173 | int vectors) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4174 | { |
| 4175 | int err, vector_threshold; |
| 4176 | |
| 4177 | /* We'll want at least 3 (vector_threshold): |
| 4178 | * 1) TxQ[0] Cleanup |
| 4179 | * 2) RxQ[0] Cleanup |
| 4180 | * 3) Other (Link Status Change, etc.) |
| 4181 | * 4) TCP Timer (optional) |
| 4182 | */ |
| 4183 | vector_threshold = MIN_MSIX_COUNT; |
| 4184 | |
| 4185 | /* The more we get, the more we will assign to Tx/Rx Cleanup |
| 4186 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. |
| 4187 | * Right now, we simply care about how many we'll get; we'll |
| 4188 | * set them up later while requesting irq's. |
| 4189 | */ |
| 4190 | while (vectors >= vector_threshold) { |
| 4191 | err = pci_enable_msix(adapter->pdev, adapter->msix_entries, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4192 | vectors); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4193 | if (!err) /* Success in acquiring all requested vectors. */ |
| 4194 | break; |
| 4195 | else if (err < 0) |
| 4196 | vectors = 0; /* Nasty failure, quit now */ |
| 4197 | else /* err == number of vectors we should try again with */ |
| 4198 | vectors = err; |
| 4199 | } |
| 4200 | |
| 4201 | if (vectors < vector_threshold) { |
| 4202 | /* Can't allocate enough MSI-X interrupts? Oh well. |
| 4203 | * This just means we'll go with either a single MSI |
| 4204 | * vector or fall back to legacy interrupts. |
| 4205 | */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4206 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
| 4207 | "Unable to allocate MSI-X interrupts\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4208 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 4209 | kfree(adapter->msix_entries); |
| 4210 | adapter->msix_entries = NULL; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4211 | } else { |
| 4212 | adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ |
Peter P Waskiewicz Jr | eb7f139 | 2009-02-01 01:18:58 -0800 | [diff] [blame] | 4213 | /* |
| 4214 | * Adjust for only the vectors we'll use, which is minimum |
| 4215 | * of max_msix_q_vectors + NON_Q_VECTORS, or the number of |
| 4216 | * vectors we were allocated. |
| 4217 | */ |
| 4218 | adapter->num_msix_vectors = min(vectors, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4219 | adapter->max_msix_q_vectors + NON_Q_VECTORS); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4220 | } |
| 4221 | } |
| 4222 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4223 | /** |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4224 | * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4225 | * @adapter: board private structure to initialize |
| 4226 | * |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4227 | * Cache the descriptor ring offsets for RSS to the assigned rings. |
| 4228 | * |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4229 | **/ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4230 | static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4231 | { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4232 | int i; |
| 4233 | bool ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4234 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4235 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
| 4236 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4237 | adapter->rx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4238 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4239 | adapter->tx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4240 | ret = true; |
| 4241 | } else { |
| 4242 | ret = false; |
| 4243 | } |
| 4244 | |
| 4245 | return ret; |
| 4246 | } |
| 4247 | |
| 4248 | #ifdef CONFIG_IXGBE_DCB |
| 4249 | /** |
| 4250 | * ixgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB |
| 4251 | * @adapter: board private structure to initialize |
| 4252 | * |
| 4253 | * Cache the descriptor ring offsets for DCB to the assigned rings. |
| 4254 | * |
| 4255 | **/ |
| 4256 | static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) |
| 4257 | { |
| 4258 | int i; |
| 4259 | bool ret = false; |
| 4260 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; |
| 4261 | |
| 4262 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 4263 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4264 | /* the number of queues is assumed to be symmetric */ |
| 4265 | for (i = 0; i < dcb_i; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4266 | adapter->rx_ring[i]->reg_idx = i << 3; |
| 4267 | adapter->tx_ring[i]->reg_idx = i << 2; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4268 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4269 | ret = true; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4270 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4271 | if (dcb_i == 8) { |
| 4272 | /* |
| 4273 | * Tx TC0 starts at: descriptor queue 0 |
| 4274 | * Tx TC1 starts at: descriptor queue 32 |
| 4275 | * Tx TC2 starts at: descriptor queue 64 |
| 4276 | * Tx TC3 starts at: descriptor queue 80 |
| 4277 | * Tx TC4 starts at: descriptor queue 96 |
| 4278 | * Tx TC5 starts at: descriptor queue 104 |
| 4279 | * Tx TC6 starts at: descriptor queue 112 |
| 4280 | * Tx TC7 starts at: descriptor queue 120 |
| 4281 | * |
| 4282 | * Rx TC0-TC7 are offset by 16 queues each |
| 4283 | */ |
| 4284 | for (i = 0; i < 3; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4285 | adapter->tx_ring[i]->reg_idx = i << 5; |
| 4286 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4287 | } |
| 4288 | for ( ; i < 5; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4289 | adapter->tx_ring[i]->reg_idx = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4290 | ((i + 2) << 4); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4291 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4292 | } |
| 4293 | for ( ; i < dcb_i; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4294 | adapter->tx_ring[i]->reg_idx = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4295 | ((i + 8) << 3); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4296 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4297 | } |
| 4298 | |
| 4299 | ret = true; |
| 4300 | } else if (dcb_i == 4) { |
| 4301 | /* |
| 4302 | * Tx TC0 starts at: descriptor queue 0 |
| 4303 | * Tx TC1 starts at: descriptor queue 64 |
| 4304 | * Tx TC2 starts at: descriptor queue 96 |
| 4305 | * Tx TC3 starts at: descriptor queue 112 |
| 4306 | * |
| 4307 | * Rx TC0-TC3 are offset by 32 queues each |
| 4308 | */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4309 | adapter->tx_ring[0]->reg_idx = 0; |
| 4310 | adapter->tx_ring[1]->reg_idx = 64; |
| 4311 | adapter->tx_ring[2]->reg_idx = 96; |
| 4312 | adapter->tx_ring[3]->reg_idx = 112; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4313 | for (i = 0 ; i < dcb_i; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4314 | adapter->rx_ring[i]->reg_idx = i << 5; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4315 | |
| 4316 | ret = true; |
| 4317 | } else { |
| 4318 | ret = false; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4319 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4320 | } else { |
| 4321 | ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4322 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4323 | } else { |
| 4324 | ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4325 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4326 | |
| 4327 | return ret; |
| 4328 | } |
| 4329 | #endif |
| 4330 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4331 | /** |
| 4332 | * ixgbe_cache_ring_fdir - Descriptor ring to register mapping for Flow Director |
| 4333 | * @adapter: board private structure to initialize |
| 4334 | * |
| 4335 | * Cache the descriptor ring offsets for Flow Director to the assigned rings. |
| 4336 | * |
| 4337 | **/ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4338 | static inline bool ixgbe_cache_ring_fdir(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4339 | { |
| 4340 | int i; |
| 4341 | bool ret = false; |
| 4342 | |
| 4343 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && |
| 4344 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4345 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))) { |
| 4346 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4347 | adapter->rx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4348 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4349 | adapter->tx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4350 | ret = true; |
| 4351 | } |
| 4352 | |
| 4353 | return ret; |
| 4354 | } |
| 4355 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4356 | #ifdef IXGBE_FCOE |
| 4357 | /** |
| 4358 | * ixgbe_cache_ring_fcoe - Descriptor ring to register mapping for the FCoE |
| 4359 | * @adapter: board private structure to initialize |
| 4360 | * |
| 4361 | * Cache the descriptor ring offsets for FCoE mode to the assigned rings. |
| 4362 | * |
| 4363 | */ |
| 4364 | static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter) |
| 4365 | { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4366 | int i, fcoe_rx_i = 0, fcoe_tx_i = 0; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4367 | bool ret = false; |
| 4368 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
| 4369 | |
| 4370 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 4371 | #ifdef CONFIG_IXGBE_DCB |
| 4372 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4373 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; |
| 4374 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4375 | ixgbe_cache_ring_dcb(adapter); |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4376 | /* find out queues in TC for FCoE */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4377 | fcoe_rx_i = adapter->rx_ring[fcoe->tc]->reg_idx + 1; |
| 4378 | fcoe_tx_i = adapter->tx_ring[fcoe->tc]->reg_idx + 1; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4379 | /* |
| 4380 | * In 82599, the number of Tx queues for each traffic |
| 4381 | * class for both 8-TC and 4-TC modes are: |
| 4382 | * TCs : TC0 TC1 TC2 TC3 TC4 TC5 TC6 TC7 |
| 4383 | * 8 TCs: 32 32 16 16 8 8 8 8 |
| 4384 | * 4 TCs: 64 64 32 32 |
| 4385 | * We have max 8 queues for FCoE, where 8 the is |
| 4386 | * FCoE redirection table size. If TC for FCoE is |
| 4387 | * less than or equal to TC3, we have enough queues |
| 4388 | * to add max of 8 queues for FCoE, so we start FCoE |
| 4389 | * tx descriptor from the next one, i.e., reg_idx + 1. |
| 4390 | * If TC for FCoE is above TC3, implying 8 TC mode, |
| 4391 | * and we need 8 for FCoE, we have to take all queues |
| 4392 | * in that traffic class for FCoE. |
| 4393 | */ |
| 4394 | if ((f->indices == IXGBE_FCRETA_SIZE) && (fcoe->tc > 3)) |
| 4395 | fcoe_tx_i--; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4396 | } |
| 4397 | #endif /* CONFIG_IXGBE_DCB */ |
| 4398 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Yi Zou | 8faa2a7 | 2009-07-09 02:29:50 +0000 | [diff] [blame] | 4399 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4400 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
| 4401 | ixgbe_cache_ring_fdir(adapter); |
| 4402 | else |
| 4403 | ixgbe_cache_ring_rss(adapter); |
| 4404 | |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4405 | fcoe_rx_i = f->mask; |
| 4406 | fcoe_tx_i = f->mask; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4407 | } |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4408 | for (i = 0; i < f->indices; i++, fcoe_rx_i++, fcoe_tx_i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4409 | adapter->rx_ring[f->mask + i]->reg_idx = fcoe_rx_i; |
| 4410 | adapter->tx_ring[f->mask + i]->reg_idx = fcoe_tx_i; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4411 | } |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4412 | ret = true; |
| 4413 | } |
| 4414 | return ret; |
| 4415 | } |
| 4416 | |
| 4417 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4418 | /** |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4419 | * ixgbe_cache_ring_sriov - Descriptor ring to register mapping for sriov |
| 4420 | * @adapter: board private structure to initialize |
| 4421 | * |
| 4422 | * SR-IOV doesn't use any descriptor rings but changes the default if |
| 4423 | * no other mapping is used. |
| 4424 | * |
| 4425 | */ |
| 4426 | static inline bool ixgbe_cache_ring_sriov(struct ixgbe_adapter *adapter) |
| 4427 | { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4428 | adapter->rx_ring[0]->reg_idx = adapter->num_vfs * 2; |
| 4429 | adapter->tx_ring[0]->reg_idx = adapter->num_vfs * 2; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4430 | if (adapter->num_vfs) |
| 4431 | return true; |
| 4432 | else |
| 4433 | return false; |
| 4434 | } |
| 4435 | |
| 4436 | /** |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4437 | * ixgbe_cache_ring_register - Descriptor ring to register mapping |
| 4438 | * @adapter: board private structure to initialize |
| 4439 | * |
| 4440 | * Once we know the feature-set enabled for the device, we'll cache |
| 4441 | * the register offset the descriptor ring is assigned to. |
| 4442 | * |
| 4443 | * Note, the order the various feature calls is important. It must start with |
| 4444 | * the "most" features enabled at the same time, then trickle down to the |
| 4445 | * least amount of features turned on at once. |
| 4446 | **/ |
| 4447 | static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) |
| 4448 | { |
| 4449 | /* start with default case */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4450 | adapter->rx_ring[0]->reg_idx = 0; |
| 4451 | adapter->tx_ring[0]->reg_idx = 0; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4452 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4453 | if (ixgbe_cache_ring_sriov(adapter)) |
| 4454 | return; |
| 4455 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4456 | #ifdef IXGBE_FCOE |
| 4457 | if (ixgbe_cache_ring_fcoe(adapter)) |
| 4458 | return; |
| 4459 | |
| 4460 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4461 | #ifdef CONFIG_IXGBE_DCB |
| 4462 | if (ixgbe_cache_ring_dcb(adapter)) |
| 4463 | return; |
| 4464 | |
| 4465 | #endif |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4466 | if (ixgbe_cache_ring_fdir(adapter)) |
| 4467 | return; |
| 4468 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4469 | if (ixgbe_cache_ring_rss(adapter)) |
| 4470 | return; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4471 | } |
| 4472 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4473 | /** |
| 4474 | * ixgbe_alloc_queues - Allocate memory for all rings |
| 4475 | * @adapter: board private structure to initialize |
| 4476 | * |
| 4477 | * We allocate one ring per queue at run-time since we don't know the |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4478 | * number of queues at compile-time. The polling_netdev array is |
| 4479 | * intended for Multiqueue, but should work fine with a single queue. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4480 | **/ |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4481 | static int ixgbe_alloc_queues(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4482 | { |
| 4483 | int i; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4484 | int rx_count; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4485 | int orig_node = adapter->node; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4486 | |
| 4487 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4488 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
| 4489 | if (orig_node == -1) { |
| 4490 | int cur_node = next_online_node(adapter->node); |
| 4491 | if (cur_node == MAX_NUMNODES) |
| 4492 | cur_node = first_online_node; |
| 4493 | adapter->node = cur_node; |
| 4494 | } |
| 4495 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4496 | adapter->node); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4497 | if (!ring) |
| 4498 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); |
| 4499 | if (!ring) |
| 4500 | goto err_tx_ring_allocation; |
| 4501 | ring->count = adapter->tx_ring_count; |
| 4502 | ring->queue_index = i; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4503 | ring->dev = &adapter->pdev->dev; |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 4504 | ring->netdev = adapter->netdev; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4505 | ring->numa_node = adapter->node; |
| 4506 | |
| 4507 | adapter->tx_ring[i] = ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4508 | } |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 4509 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4510 | /* Restore the adapter's original node */ |
| 4511 | adapter->node = orig_node; |
| 4512 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4513 | rx_count = adapter->rx_ring_count; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4514 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4515 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
| 4516 | if (orig_node == -1) { |
| 4517 | int cur_node = next_online_node(adapter->node); |
| 4518 | if (cur_node == MAX_NUMNODES) |
| 4519 | cur_node = first_online_node; |
| 4520 | adapter->node = cur_node; |
| 4521 | } |
| 4522 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4523 | adapter->node); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4524 | if (!ring) |
| 4525 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); |
| 4526 | if (!ring) |
| 4527 | goto err_rx_ring_allocation; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4528 | ring->count = rx_count; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4529 | ring->queue_index = i; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4530 | ring->dev = &adapter->pdev->dev; |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 4531 | ring->netdev = adapter->netdev; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4532 | ring->numa_node = adapter->node; |
| 4533 | |
| 4534 | adapter->rx_ring[i] = ring; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4535 | } |
| 4536 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4537 | /* Restore the adapter's original node */ |
| 4538 | adapter->node = orig_node; |
| 4539 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4540 | ixgbe_cache_ring_register(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4541 | |
| 4542 | return 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4543 | |
| 4544 | err_rx_ring_allocation: |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4545 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 4546 | kfree(adapter->tx_ring[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4547 | err_tx_ring_allocation: |
| 4548 | return -ENOMEM; |
| 4549 | } |
| 4550 | |
| 4551 | /** |
| 4552 | * ixgbe_set_interrupt_capability - set MSI-X or MSI if supported |
| 4553 | * @adapter: board private structure to initialize |
| 4554 | * |
| 4555 | * Attempt to configure the interrupts using the best available |
| 4556 | * capabilities of the hardware and the kernel. |
| 4557 | **/ |
Al Viro | feea6a5 | 2008-11-27 15:34:07 -0800 | [diff] [blame] | 4558 | static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4559 | { |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4560 | struct ixgbe_hw *hw = &adapter->hw; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4561 | int err = 0; |
| 4562 | int vector, v_budget; |
| 4563 | |
| 4564 | /* |
| 4565 | * It's easy to be greedy for MSI-X vectors, but it really |
| 4566 | * doesn't do us much good if we have a lot more vectors |
| 4567 | * than CPU's. So let's be conservative and only ask for |
PJ Waskiewicz | 342bde1 | 2009-11-12 23:50:43 +0000 | [diff] [blame] | 4568 | * (roughly) the same number of vectors as there are CPU's. |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4569 | */ |
| 4570 | v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4571 | (int)num_online_cpus()) + NON_Q_VECTORS; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4572 | |
| 4573 | /* |
| 4574 | * At the same time, hardware can only support a maximum of |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4575 | * hw.mac->max_msix_vectors vectors. With features |
| 4576 | * such as RSS and VMDq, we can easily surpass the number of Rx and Tx |
| 4577 | * descriptor queues supported by our device. Thus, we cap it off in |
| 4578 | * those rare cases where the cpu count also exceeds our vector limit. |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4579 | */ |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4580 | v_budget = min(v_budget, (int)hw->mac.max_msix_vectors); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4581 | |
| 4582 | /* A failure in MSI-X entry allocation isn't fatal, but it does |
| 4583 | * mean we disable MSI-X capabilities of the adapter. */ |
| 4584 | adapter->msix_entries = kcalloc(v_budget, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4585 | sizeof(struct msix_entry), GFP_KERNEL); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4586 | if (adapter->msix_entries) { |
| 4587 | for (vector = 0; vector < v_budget; vector++) |
| 4588 | adapter->msix_entries[vector].entry = vector; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4589 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4590 | ixgbe_acquire_msix_vectors(adapter, v_budget); |
| 4591 | |
| 4592 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
| 4593 | goto out; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4594 | } |
David S. Miller | 26d2784 | 2010-05-03 15:18:22 -0700 | [diff] [blame] | 4595 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4596 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
| 4597 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4598 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4599 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4600 | adapter->atr_sample_rate = 0; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4601 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 4602 | ixgbe_disable_sriov(adapter); |
| 4603 | |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4604 | err = ixgbe_set_num_queues(adapter); |
| 4605 | if (err) |
| 4606 | return err; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4607 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4608 | err = pci_enable_msi(adapter->pdev); |
| 4609 | if (!err) { |
| 4610 | adapter->flags |= IXGBE_FLAG_MSI_ENABLED; |
| 4611 | } else { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4612 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
| 4613 | "Unable to allocate MSI interrupt, " |
| 4614 | "falling back to legacy. Error: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4615 | /* reset err */ |
| 4616 | err = 0; |
| 4617 | } |
| 4618 | |
| 4619 | out: |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4620 | return err; |
| 4621 | } |
| 4622 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4623 | /** |
| 4624 | * ixgbe_alloc_q_vectors - Allocate memory for interrupt vectors |
| 4625 | * @adapter: board private structure to initialize |
| 4626 | * |
| 4627 | * We allocate one q_vector per queue interrupt. If allocation fails we |
| 4628 | * return -ENOMEM. |
| 4629 | **/ |
| 4630 | static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter) |
| 4631 | { |
| 4632 | int q_idx, num_q_vectors; |
| 4633 | struct ixgbe_q_vector *q_vector; |
| 4634 | int napi_vectors; |
| 4635 | int (*poll)(struct napi_struct *, int); |
| 4636 | |
| 4637 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 4638 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 4639 | napi_vectors = adapter->num_rx_queues; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4640 | poll = &ixgbe_clean_rxtx_many; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4641 | } else { |
| 4642 | num_q_vectors = 1; |
| 4643 | napi_vectors = 1; |
| 4644 | poll = &ixgbe_poll; |
| 4645 | } |
| 4646 | |
| 4647 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4648 | q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4649 | GFP_KERNEL, adapter->node); |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4650 | if (!q_vector) |
| 4651 | q_vector = kzalloc(sizeof(struct ixgbe_q_vector), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4652 | GFP_KERNEL); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4653 | if (!q_vector) |
| 4654 | goto err_out; |
| 4655 | q_vector->adapter = adapter; |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 4656 | if (q_vector->txr_count && !q_vector->rxr_count) |
| 4657 | q_vector->eitr = adapter->tx_eitr_param; |
| 4658 | else |
| 4659 | q_vector->eitr = adapter->rx_eitr_param; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 4660 | q_vector->v_idx = q_idx; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4661 | netif_napi_add(adapter->netdev, &q_vector->napi, (*poll), 64); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4662 | adapter->q_vector[q_idx] = q_vector; |
| 4663 | } |
| 4664 | |
| 4665 | return 0; |
| 4666 | |
| 4667 | err_out: |
| 4668 | while (q_idx) { |
| 4669 | q_idx--; |
| 4670 | q_vector = adapter->q_vector[q_idx]; |
| 4671 | netif_napi_del(&q_vector->napi); |
| 4672 | kfree(q_vector); |
| 4673 | adapter->q_vector[q_idx] = NULL; |
| 4674 | } |
| 4675 | return -ENOMEM; |
| 4676 | } |
| 4677 | |
| 4678 | /** |
| 4679 | * ixgbe_free_q_vectors - Free memory allocated for interrupt vectors |
| 4680 | * @adapter: board private structure to initialize |
| 4681 | * |
| 4682 | * This function frees the memory allocated to the q_vectors. In addition if |
| 4683 | * NAPI is enabled it will delete any references to the NAPI struct prior |
| 4684 | * to freeing the q_vector. |
| 4685 | **/ |
| 4686 | static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter) |
| 4687 | { |
| 4688 | int q_idx, num_q_vectors; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4689 | |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4690 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4691 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4692 | else |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4693 | num_q_vectors = 1; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4694 | |
| 4695 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { |
| 4696 | struct ixgbe_q_vector *q_vector = adapter->q_vector[q_idx]; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4697 | adapter->q_vector[q_idx] = NULL; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4698 | netif_napi_del(&q_vector->napi); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4699 | kfree(q_vector); |
| 4700 | } |
| 4701 | } |
| 4702 | |
Don Skidmore | 7b25cdb | 2009-08-25 04:47:32 +0000 | [diff] [blame] | 4703 | static void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4704 | { |
| 4705 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 4706 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 4707 | pci_disable_msix(adapter->pdev); |
| 4708 | kfree(adapter->msix_entries); |
| 4709 | adapter->msix_entries = NULL; |
| 4710 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { |
| 4711 | adapter->flags &= ~IXGBE_FLAG_MSI_ENABLED; |
| 4712 | pci_disable_msi(adapter->pdev); |
| 4713 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4714 | } |
| 4715 | |
| 4716 | /** |
| 4717 | * ixgbe_init_interrupt_scheme - Determine proper interrupt scheme |
| 4718 | * @adapter: board private structure to initialize |
| 4719 | * |
| 4720 | * We determine which interrupt scheme to use based on... |
| 4721 | * - Kernel support (MSI, MSI-X) |
| 4722 | * - which can be user-defined (via MODULE_PARAM) |
| 4723 | * - Hardware queue count (num_*_queues) |
| 4724 | * - defined by miscellaneous hardware support/features (RSS, etc.) |
| 4725 | **/ |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4726 | int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4727 | { |
| 4728 | int err; |
| 4729 | |
| 4730 | /* Number of supported queues */ |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4731 | err = ixgbe_set_num_queues(adapter); |
| 4732 | if (err) |
| 4733 | return err; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4734 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4735 | err = ixgbe_set_interrupt_capability(adapter); |
| 4736 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4737 | e_dev_err("Unable to setup interrupt capabilities\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4738 | goto err_set_interrupt; |
| 4739 | } |
| 4740 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4741 | err = ixgbe_alloc_q_vectors(adapter); |
| 4742 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4743 | e_dev_err("Unable to allocate memory for queue vectors\n"); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4744 | goto err_alloc_q_vectors; |
| 4745 | } |
| 4746 | |
| 4747 | err = ixgbe_alloc_queues(adapter); |
| 4748 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4749 | e_dev_err("Unable to allocate memory for queues\n"); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4750 | goto err_alloc_queues; |
| 4751 | } |
| 4752 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4753 | e_dev_info("Multiqueue %s: Rx Queue count = %u, Tx Queue count = %u\n", |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4754 | (adapter->num_rx_queues > 1) ? "Enabled" : "Disabled", |
| 4755 | adapter->num_rx_queues, adapter->num_tx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4756 | |
| 4757 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 4758 | |
| 4759 | return 0; |
| 4760 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4761 | err_alloc_queues: |
| 4762 | ixgbe_free_q_vectors(adapter); |
| 4763 | err_alloc_q_vectors: |
| 4764 | ixgbe_reset_interrupt_capability(adapter); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4765 | err_set_interrupt: |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4766 | return err; |
| 4767 | } |
| 4768 | |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 4769 | static void ring_free_rcu(struct rcu_head *head) |
| 4770 | { |
| 4771 | kfree(container_of(head, struct ixgbe_ring, rcu)); |
| 4772 | } |
| 4773 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4774 | /** |
| 4775 | * ixgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings |
| 4776 | * @adapter: board private structure to clear interrupt scheme on |
| 4777 | * |
| 4778 | * We go through and clear interrupt specific resources and reset the structure |
| 4779 | * to pre-load conditions |
| 4780 | **/ |
| 4781 | void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter) |
| 4782 | { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4783 | int i; |
| 4784 | |
| 4785 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 4786 | kfree(adapter->tx_ring[i]); |
| 4787 | adapter->tx_ring[i] = NULL; |
| 4788 | } |
| 4789 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 4790 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
| 4791 | |
| 4792 | /* ixgbe_get_stats64() might access this ring, we must wait |
| 4793 | * a grace period before freeing it. |
| 4794 | */ |
| 4795 | call_rcu(&ring->rcu, ring_free_rcu); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4796 | adapter->rx_ring[i] = NULL; |
| 4797 | } |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4798 | |
| 4799 | ixgbe_free_q_vectors(adapter); |
| 4800 | ixgbe_reset_interrupt_capability(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4801 | } |
| 4802 | |
| 4803 | /** |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4804 | * ixgbe_sfp_timer - worker thread to find a missing module |
| 4805 | * @data: pointer to our adapter struct |
| 4806 | **/ |
| 4807 | static void ixgbe_sfp_timer(unsigned long data) |
| 4808 | { |
| 4809 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; |
| 4810 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4811 | /* |
| 4812 | * Do the sfp_timer outside of interrupt context due to the |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4813 | * delays that sfp+ detection requires |
| 4814 | */ |
| 4815 | schedule_work(&adapter->sfp_task); |
| 4816 | } |
| 4817 | |
| 4818 | /** |
| 4819 | * ixgbe_sfp_task - worker thread to find a missing module |
| 4820 | * @work: pointer to work_struct containing our data |
| 4821 | **/ |
| 4822 | static void ixgbe_sfp_task(struct work_struct *work) |
| 4823 | { |
| 4824 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4825 | struct ixgbe_adapter, |
| 4826 | sfp_task); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4827 | struct ixgbe_hw *hw = &adapter->hw; |
| 4828 | |
| 4829 | if ((hw->phy.type == ixgbe_phy_nl) && |
| 4830 | (hw->phy.sfp_type == ixgbe_sfp_type_not_present)) { |
| 4831 | s32 ret = hw->phy.ops.identify_sfp(hw); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 4832 | if (ret == IXGBE_ERR_SFP_NOT_PRESENT) |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4833 | goto reschedule; |
| 4834 | ret = hw->phy.ops.reset(hw); |
| 4835 | if (ret == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4836 | e_dev_err("failed to initialize because an unsupported " |
| 4837 | "SFP+ module type was detected.\n"); |
| 4838 | e_dev_err("Reload the driver after installing a " |
| 4839 | "supported module.\n"); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4840 | unregister_netdev(adapter->netdev); |
| 4841 | } else { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4842 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4843 | } |
| 4844 | /* don't need this routine any more */ |
| 4845 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 4846 | } |
| 4847 | return; |
| 4848 | reschedule: |
| 4849 | if (test_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state)) |
| 4850 | mod_timer(&adapter->sfp_timer, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4851 | round_jiffies(jiffies + (2 * HZ))); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4852 | } |
| 4853 | |
| 4854 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4855 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) |
| 4856 | * @adapter: board private structure to initialize |
| 4857 | * |
| 4858 | * ixgbe_sw_init initializes the Adapter private data structure. |
| 4859 | * Fields are initialized based on PCI device information and |
| 4860 | * OS network device settings (MTU size). |
| 4861 | **/ |
| 4862 | static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) |
| 4863 | { |
| 4864 | struct ixgbe_hw *hw = &adapter->hw; |
| 4865 | struct pci_dev *pdev = adapter->pdev; |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 4866 | struct net_device *dev = adapter->netdev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4867 | unsigned int rss; |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 4868 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4869 | int j; |
| 4870 | struct tc_configuration *tc; |
| 4871 | #endif |
John Fastabend | 16b61be | 2010-11-16 19:26:44 -0800 | [diff] [blame] | 4872 | int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4873 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 4874 | /* PCI config space info */ |
| 4875 | |
| 4876 | hw->vendor_id = pdev->vendor; |
| 4877 | hw->device_id = pdev->device; |
| 4878 | hw->revision_id = pdev->revision; |
| 4879 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 4880 | hw->subsystem_device_id = pdev->subsystem_device; |
| 4881 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4882 | /* Set capability flags */ |
| 4883 | rss = min(IXGBE_MAX_RSS_INDICES, (int)num_online_cpus()); |
| 4884 | adapter->ring_feature[RING_F_RSS].indices = rss; |
| 4885 | adapter->flags |= IXGBE_FLAG_RSS_ENABLED; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4886 | adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES; |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 4887 | if (hw->mac.type == ixgbe_mac_82598EB) { |
| 4888 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
| 4889 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4890 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 4891 | } else if (hw->mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4892 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 4893 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
| 4894 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 4895 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) |
| 4896 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 4897 | if (dev->features & NETIF_F_NTUPLE) { |
| 4898 | /* Flow Director perfect filter enabled */ |
| 4899 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4900 | adapter->atr_sample_rate = 0; |
| 4901 | spin_lock_init(&adapter->fdir_perfect_lock); |
| 4902 | } else { |
| 4903 | /* Flow Director hash filters enabled */ |
| 4904 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4905 | adapter->atr_sample_rate = 20; |
| 4906 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4907 | adapter->ring_feature[RING_F_FDIR].indices = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4908 | IXGBE_MAX_FDIR_INDICES; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4909 | adapter->fdir_pballoc = 0; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 4910 | #ifdef IXGBE_FCOE |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 4911 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; |
| 4912 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; |
| 4913 | adapter->ring_feature[RING_F_FCOE].indices = 0; |
Yi Zou | 61a0f42 | 2009-12-03 11:32:22 +0000 | [diff] [blame] | 4914 | #ifdef CONFIG_IXGBE_DCB |
Yi Zou | 6ee1652 | 2009-08-31 12:34:28 +0000 | [diff] [blame] | 4915 | /* Default traffic class to use for FCoE */ |
| 4916 | adapter->fcoe.tc = IXGBE_FCOE_DEFTC; |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 4917 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; |
Yi Zou | 61a0f42 | 2009-12-03 11:32:22 +0000 | [diff] [blame] | 4918 | #endif |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 4919 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 4920 | } |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4921 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 4922 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4923 | /* Configure DCB traffic classes */ |
| 4924 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { |
| 4925 | tc = &adapter->dcb_cfg.tc_config[j]; |
| 4926 | tc->path[DCB_TX_CONFIG].bwg_id = 0; |
| 4927 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); |
| 4928 | tc->path[DCB_RX_CONFIG].bwg_id = 0; |
| 4929 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); |
| 4930 | tc->dcb_pfc = pfc_disabled; |
| 4931 | } |
| 4932 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
| 4933 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; |
| 4934 | adapter->dcb_cfg.rx_pba_cfg = pba_equal; |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 4935 | adapter->dcb_cfg.pfc_mode_enable = false; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4936 | adapter->dcb_cfg.round_robin_enable = false; |
| 4937 | adapter->dcb_set_bitmap = 0x00; |
| 4938 | ixgbe_copy_dcb_cfg(&adapter->dcb_cfg, &adapter->temp_dcb_cfg, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4939 | adapter->ring_feature[RING_F_DCB].indices); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4940 | |
| 4941 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4942 | |
| 4943 | /* default flow control settings */ |
Don Skidmore | cd7664f | 2009-03-31 21:33:44 +0000 | [diff] [blame] | 4944 | hw->fc.requested_mode = ixgbe_fc_full; |
Don Skidmore | 71fd570 | 2009-03-31 21:35:05 +0000 | [diff] [blame] | 4945 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 4946 | #ifdef CONFIG_DCB |
| 4947 | adapter->last_lfc_mode = hw->fc.current_mode; |
| 4948 | #endif |
John Fastabend | 16b61be | 2010-11-16 19:26:44 -0800 | [diff] [blame] | 4949 | hw->fc.high_water = FC_HIGH_WATER(max_frame); |
| 4950 | hw->fc.low_water = FC_LOW_WATER(max_frame); |
Jesse Brandeburg | 2b9ade9 | 2008-08-26 04:27:10 -0700 | [diff] [blame] | 4951 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
| 4952 | hw->fc.send_xon = true; |
Don Skidmore | 71fd570 | 2009-03-31 21:35:05 +0000 | [diff] [blame] | 4953 | hw->fc.disable_fc_autoneg = false; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4954 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 4955 | /* enable itr by default in dynamic mode */ |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 4956 | adapter->rx_itr_setting = 1; |
| 4957 | adapter->rx_eitr_param = 20000; |
| 4958 | adapter->tx_itr_setting = 1; |
| 4959 | adapter->tx_eitr_param = 10000; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 4960 | |
| 4961 | /* set defaults for eitr in MegaBytes */ |
| 4962 | adapter->eitr_low = 10; |
| 4963 | adapter->eitr_high = 20; |
| 4964 | |
| 4965 | /* set default ring sizes */ |
| 4966 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; |
| 4967 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; |
| 4968 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4969 | /* initialize eeprom parameters */ |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 4970 | if (ixgbe_init_eeprom_params_generic(hw)) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4971 | e_dev_err("EEPROM initialization failed\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4972 | return -EIO; |
| 4973 | } |
| 4974 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4975 | /* enable rx csum by default */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4976 | adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED; |
| 4977 | |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4978 | /* get assigned NUMA node */ |
| 4979 | adapter->node = dev_to_node(&pdev->dev); |
| 4980 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4981 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 4982 | |
| 4983 | return 0; |
| 4984 | } |
| 4985 | |
| 4986 | /** |
| 4987 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4988 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4989 | * |
| 4990 | * Return 0 on success, negative on failure |
| 4991 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4992 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4993 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 4994 | struct device *dev = tx_ring->dev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4995 | int size; |
| 4996 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4997 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4998 | tx_ring->tx_buffer_info = vmalloc_node(size, tx_ring->numa_node); |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4999 | if (!tx_ring->tx_buffer_info) |
| 5000 | tx_ring->tx_buffer_info = vmalloc(size); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 5001 | if (!tx_ring->tx_buffer_info) |
| 5002 | goto err; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5003 | memset(tx_ring->tx_buffer_info, 0, size); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5004 | |
| 5005 | /* round up to nearest 4K */ |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 5006 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5007 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5008 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5009 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 5010 | &tx_ring->dma, GFP_KERNEL); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 5011 | if (!tx_ring->desc) |
| 5012 | goto err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5013 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5014 | tx_ring->next_to_use = 0; |
| 5015 | tx_ring->next_to_clean = 0; |
| 5016 | tx_ring->work_limit = tx_ring->count; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5017 | return 0; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 5018 | |
| 5019 | err: |
| 5020 | vfree(tx_ring->tx_buffer_info); |
| 5021 | tx_ring->tx_buffer_info = NULL; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5022 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 5023 | return -ENOMEM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5024 | } |
| 5025 | |
| 5026 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5027 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources |
| 5028 | * @adapter: board private structure |
| 5029 | * |
| 5030 | * If this function returns with an error, then it's possible one or |
| 5031 | * more of the rings is populated (while the rest are not). It is the |
| 5032 | * callers duty to clean those orphaned rings. |
| 5033 | * |
| 5034 | * Return 0 on success, negative on failure |
| 5035 | **/ |
| 5036 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) |
| 5037 | { |
| 5038 | int i, err = 0; |
| 5039 | |
| 5040 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5041 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5042 | if (!err) |
| 5043 | continue; |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5044 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5045 | break; |
| 5046 | } |
| 5047 | |
| 5048 | return err; |
| 5049 | } |
| 5050 | |
| 5051 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5052 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5053 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5054 | * |
| 5055 | * Returns 0 on success, negative on failure |
| 5056 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5057 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5058 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5059 | struct device *dev = rx_ring->dev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5060 | int size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5061 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5062 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5063 | rx_ring->rx_buffer_info = vmalloc_node(size, rx_ring->numa_node); |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 5064 | if (!rx_ring->rx_buffer_info) |
| 5065 | rx_ring->rx_buffer_info = vmalloc(size); |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5066 | if (!rx_ring->rx_buffer_info) |
| 5067 | goto err; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5068 | memset(rx_ring->rx_buffer_info, 0, size); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5069 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5070 | /* Round up to nearest 4K */ |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5071 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
| 5072 | rx_ring->size = ALIGN(rx_ring->size, 4096); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5073 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5074 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 5075 | &rx_ring->dma, GFP_KERNEL); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5076 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5077 | if (!rx_ring->desc) |
| 5078 | goto err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5079 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5080 | rx_ring->next_to_clean = 0; |
| 5081 | rx_ring->next_to_use = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5082 | |
| 5083 | return 0; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5084 | err: |
| 5085 | vfree(rx_ring->rx_buffer_info); |
| 5086 | rx_ring->rx_buffer_info = NULL; |
| 5087 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 5088 | return -ENOMEM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5089 | } |
| 5090 | |
| 5091 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5092 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources |
| 5093 | * @adapter: board private structure |
| 5094 | * |
| 5095 | * If this function returns with an error, then it's possible one or |
| 5096 | * more of the rings is populated (while the rest are not). It is the |
| 5097 | * callers duty to clean those orphaned rings. |
| 5098 | * |
| 5099 | * Return 0 on success, negative on failure |
| 5100 | **/ |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5101 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
| 5102 | { |
| 5103 | int i, err = 0; |
| 5104 | |
| 5105 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5106 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5107 | if (!err) |
| 5108 | continue; |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5109 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5110 | break; |
| 5111 | } |
| 5112 | |
| 5113 | return err; |
| 5114 | } |
| 5115 | |
| 5116 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5117 | * ixgbe_free_tx_resources - Free Tx Resources per Queue |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5118 | * @tx_ring: Tx descriptor ring for a specific queue |
| 5119 | * |
| 5120 | * Free all transmit software resources |
| 5121 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5122 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5123 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5124 | ixgbe_clean_tx_ring(tx_ring); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5125 | |
| 5126 | vfree(tx_ring->tx_buffer_info); |
| 5127 | tx_ring->tx_buffer_info = NULL; |
| 5128 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5129 | /* if not set, then don't free */ |
| 5130 | if (!tx_ring->desc) |
| 5131 | return; |
| 5132 | |
| 5133 | dma_free_coherent(tx_ring->dev, tx_ring->size, |
| 5134 | tx_ring->desc, tx_ring->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5135 | |
| 5136 | tx_ring->desc = NULL; |
| 5137 | } |
| 5138 | |
| 5139 | /** |
| 5140 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues |
| 5141 | * @adapter: board private structure |
| 5142 | * |
| 5143 | * Free all transmit software resources |
| 5144 | **/ |
| 5145 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) |
| 5146 | { |
| 5147 | int i; |
| 5148 | |
| 5149 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5150 | if (adapter->tx_ring[i]->desc) |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5151 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5152 | } |
| 5153 | |
| 5154 | /** |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 5155 | * ixgbe_free_rx_resources - Free Rx Resources |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5156 | * @rx_ring: ring to clean the resources from |
| 5157 | * |
| 5158 | * Free all receive software resources |
| 5159 | **/ |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5160 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5161 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5162 | ixgbe_clean_rx_ring(rx_ring); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5163 | |
| 5164 | vfree(rx_ring->rx_buffer_info); |
| 5165 | rx_ring->rx_buffer_info = NULL; |
| 5166 | |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5167 | /* if not set, then don't free */ |
| 5168 | if (!rx_ring->desc) |
| 5169 | return; |
| 5170 | |
| 5171 | dma_free_coherent(rx_ring->dev, rx_ring->size, |
| 5172 | rx_ring->desc, rx_ring->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5173 | |
| 5174 | rx_ring->desc = NULL; |
| 5175 | } |
| 5176 | |
| 5177 | /** |
| 5178 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues |
| 5179 | * @adapter: board private structure |
| 5180 | * |
| 5181 | * Free all receive software resources |
| 5182 | **/ |
| 5183 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) |
| 5184 | { |
| 5185 | int i; |
| 5186 | |
| 5187 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5188 | if (adapter->rx_ring[i]->desc) |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 5189 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5190 | } |
| 5191 | |
| 5192 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5193 | * ixgbe_change_mtu - Change the Maximum Transfer Unit |
| 5194 | * @netdev: network interface device structure |
| 5195 | * @new_mtu: new value for maximum frame size |
| 5196 | * |
| 5197 | * Returns 0 on success, negative on failure |
| 5198 | **/ |
| 5199 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) |
| 5200 | { |
| 5201 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
John Fastabend | 16b61be | 2010-11-16 19:26:44 -0800 | [diff] [blame] | 5202 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5203 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; |
| 5204 | |
Jesse Brandeburg | 42c783c | 2008-09-11 19:56:28 -0700 | [diff] [blame] | 5205 | /* MTU < 68 is an error and causes problems on some kernels */ |
| 5206 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5207 | return -EINVAL; |
| 5208 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5209 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5210 | /* must set new MTU before calling down or up */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5211 | netdev->mtu = new_mtu; |
| 5212 | |
John Fastabend | 16b61be | 2010-11-16 19:26:44 -0800 | [diff] [blame] | 5213 | hw->fc.high_water = FC_HIGH_WATER(max_frame); |
| 5214 | hw->fc.low_water = FC_LOW_WATER(max_frame); |
| 5215 | |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 5216 | if (netif_running(netdev)) |
| 5217 | ixgbe_reinit_locked(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5218 | |
| 5219 | return 0; |
| 5220 | } |
| 5221 | |
| 5222 | /** |
| 5223 | * ixgbe_open - Called when a network interface is made active |
| 5224 | * @netdev: network interface device structure |
| 5225 | * |
| 5226 | * Returns 0 on success, negative value on failure |
| 5227 | * |
| 5228 | * The open entry point is called when a network interface is made |
| 5229 | * active by the system (IFF_UP). At this point all resources needed |
| 5230 | * for transmit and receive operations are allocated, the interrupt |
| 5231 | * handler is registered with the OS, the watchdog timer is started, |
| 5232 | * and the stack is notified that the interface is ready. |
| 5233 | **/ |
| 5234 | static int ixgbe_open(struct net_device *netdev) |
| 5235 | { |
| 5236 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 5237 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5238 | |
Auke Kok | 4bebfaa | 2008-02-11 09:26:01 -0800 | [diff] [blame] | 5239 | /* disallow open during test */ |
| 5240 | if (test_bit(__IXGBE_TESTING, &adapter->state)) |
| 5241 | return -EBUSY; |
| 5242 | |
Jesse Brandeburg | 5438646 | 2009-04-17 20:44:27 +0000 | [diff] [blame] | 5243 | netif_carrier_off(netdev); |
| 5244 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5245 | /* allocate transmit descriptors */ |
| 5246 | err = ixgbe_setup_all_tx_resources(adapter); |
| 5247 | if (err) |
| 5248 | goto err_setup_tx; |
| 5249 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5250 | /* allocate receive descriptors */ |
| 5251 | err = ixgbe_setup_all_rx_resources(adapter); |
| 5252 | if (err) |
| 5253 | goto err_setup_rx; |
| 5254 | |
| 5255 | ixgbe_configure(adapter); |
| 5256 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5257 | err = ixgbe_request_irq(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5258 | if (err) |
| 5259 | goto err_req_irq; |
| 5260 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5261 | err = ixgbe_up_complete(adapter); |
| 5262 | if (err) |
| 5263 | goto err_up; |
| 5264 | |
Jeff Kirsher | d55b53f | 2008-07-18 04:33:03 -0700 | [diff] [blame] | 5265 | netif_tx_start_all_queues(netdev); |
| 5266 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5267 | return 0; |
| 5268 | |
| 5269 | err_up: |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 5270 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5271 | ixgbe_free_irq(adapter); |
| 5272 | err_req_irq: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5273 | err_setup_rx: |
Mallikarjuna R Chilakala | a20a119 | 2009-03-31 21:34:44 +0000 | [diff] [blame] | 5274 | ixgbe_free_all_rx_resources(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5275 | err_setup_tx: |
Mallikarjuna R Chilakala | a20a119 | 2009-03-31 21:34:44 +0000 | [diff] [blame] | 5276 | ixgbe_free_all_tx_resources(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5277 | ixgbe_reset(adapter); |
| 5278 | |
| 5279 | return err; |
| 5280 | } |
| 5281 | |
| 5282 | /** |
| 5283 | * ixgbe_close - Disables a network interface |
| 5284 | * @netdev: network interface device structure |
| 5285 | * |
| 5286 | * Returns 0, this is not allowed to fail |
| 5287 | * |
| 5288 | * The close entry point is called when an interface is de-activated |
| 5289 | * by the OS. The hardware is still under the drivers control, but |
| 5290 | * needs to be disabled. A global MAC reset is issued to stop the |
| 5291 | * hardware, and all transmit and receive resources are freed. |
| 5292 | **/ |
| 5293 | static int ixgbe_close(struct net_device *netdev) |
| 5294 | { |
| 5295 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5296 | |
| 5297 | ixgbe_down(adapter); |
| 5298 | ixgbe_free_irq(adapter); |
| 5299 | |
| 5300 | ixgbe_free_all_tx_resources(adapter); |
| 5301 | ixgbe_free_all_rx_resources(adapter); |
| 5302 | |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 5303 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5304 | |
| 5305 | return 0; |
| 5306 | } |
| 5307 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5308 | #ifdef CONFIG_PM |
| 5309 | static int ixgbe_resume(struct pci_dev *pdev) |
| 5310 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 5311 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| 5312 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5313 | u32 err; |
| 5314 | |
| 5315 | pci_set_power_state(pdev, PCI_D0); |
| 5316 | pci_restore_state(pdev); |
Don Skidmore | 656ab81 | 2009-12-23 21:19:19 -0800 | [diff] [blame] | 5317 | /* |
| 5318 | * pci_restore_state clears dev->state_saved so call |
| 5319 | * pci_save_state to restore it. |
| 5320 | */ |
| 5321 | pci_save_state(pdev); |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 5322 | |
| 5323 | err = pci_enable_device_mem(pdev); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5324 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5325 | e_dev_err("Cannot enable PCI device from suspend\n"); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5326 | return err; |
| 5327 | } |
| 5328 | pci_set_master(pdev); |
| 5329 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 5330 | pci_wake_from_d3(pdev, false); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5331 | |
| 5332 | err = ixgbe_init_interrupt_scheme(adapter); |
| 5333 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5334 | e_dev_err("Cannot initialize interrupts for device\n"); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5335 | return err; |
| 5336 | } |
| 5337 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5338 | ixgbe_reset(adapter); |
| 5339 | |
Waskiewicz Jr, Peter P | 495dce1 | 2009-04-23 11:15:18 +0000 | [diff] [blame] | 5340 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
| 5341 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5342 | if (netif_running(netdev)) { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 5343 | err = ixgbe_open(netdev); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5344 | if (err) |
| 5345 | return err; |
| 5346 | } |
| 5347 | |
| 5348 | netif_device_attach(netdev); |
| 5349 | |
| 5350 | return 0; |
| 5351 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5352 | #endif /* CONFIG_PM */ |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5353 | |
| 5354 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5355 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 5356 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| 5357 | struct net_device *netdev = adapter->netdev; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5358 | struct ixgbe_hw *hw = &adapter->hw; |
| 5359 | u32 ctrl, fctrl; |
| 5360 | u32 wufc = adapter->wol; |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5361 | #ifdef CONFIG_PM |
| 5362 | int retval = 0; |
| 5363 | #endif |
| 5364 | |
| 5365 | netif_device_detach(netdev); |
| 5366 | |
| 5367 | if (netif_running(netdev)) { |
| 5368 | ixgbe_down(adapter); |
| 5369 | ixgbe_free_irq(adapter); |
| 5370 | ixgbe_free_all_tx_resources(adapter); |
| 5371 | ixgbe_free_all_rx_resources(adapter); |
| 5372 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5373 | |
Alexander Duyck | 5f5ae6f | 2010-11-16 19:26:52 -0800 | [diff] [blame] | 5374 | ixgbe_clear_interrupt_scheme(adapter); |
| 5375 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5376 | #ifdef CONFIG_PM |
| 5377 | retval = pci_save_state(pdev); |
| 5378 | if (retval) |
| 5379 | return retval; |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 5380 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5381 | #endif |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5382 | if (wufc) { |
| 5383 | ixgbe_set_rx_mode(netdev); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5384 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5385 | /* turn on all-multi mode if wake on multicast is enabled */ |
| 5386 | if (wufc & IXGBE_WUFC_MC) { |
| 5387 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 5388 | fctrl |= IXGBE_FCTRL_MPE; |
| 5389 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
| 5390 | } |
| 5391 | |
| 5392 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); |
| 5393 | ctrl |= IXGBE_CTRL_GIO_DIS; |
| 5394 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); |
| 5395 | |
| 5396 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); |
| 5397 | } else { |
| 5398 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); |
| 5399 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); |
| 5400 | } |
| 5401 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 5402 | if (wufc && hw->mac.type == ixgbe_mac_82599EB) |
| 5403 | pci_wake_from_d3(pdev, true); |
| 5404 | else |
| 5405 | pci_wake_from_d3(pdev, false); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5406 | |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5407 | *enable_wake = !!wufc; |
| 5408 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5409 | ixgbe_release_hw_control(adapter); |
| 5410 | |
| 5411 | pci_disable_device(pdev); |
| 5412 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5413 | return 0; |
| 5414 | } |
| 5415 | |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5416 | #ifdef CONFIG_PM |
| 5417 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) |
| 5418 | { |
| 5419 | int retval; |
| 5420 | bool wake; |
| 5421 | |
| 5422 | retval = __ixgbe_shutdown(pdev, &wake); |
| 5423 | if (retval) |
| 5424 | return retval; |
| 5425 | |
| 5426 | if (wake) { |
| 5427 | pci_prepare_to_sleep(pdev); |
| 5428 | } else { |
| 5429 | pci_wake_from_d3(pdev, false); |
| 5430 | pci_set_power_state(pdev, PCI_D3hot); |
| 5431 | } |
| 5432 | |
| 5433 | return 0; |
| 5434 | } |
| 5435 | #endif /* CONFIG_PM */ |
| 5436 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5437 | static void ixgbe_shutdown(struct pci_dev *pdev) |
| 5438 | { |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5439 | bool wake; |
| 5440 | |
| 5441 | __ixgbe_shutdown(pdev, &wake); |
| 5442 | |
| 5443 | if (system_state == SYSTEM_POWER_OFF) { |
| 5444 | pci_wake_from_d3(pdev, wake); |
| 5445 | pci_set_power_state(pdev, PCI_D3hot); |
| 5446 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5447 | } |
| 5448 | |
| 5449 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5450 | * ixgbe_update_stats - Update the board statistics counters. |
| 5451 | * @adapter: board private structure |
| 5452 | **/ |
| 5453 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) |
| 5454 | { |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5455 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5456 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 5457 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5458 | u64 total_mpc = 0; |
| 5459 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 5460 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
| 5461 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; |
| 5462 | u64 bytes = 0, packets = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5463 | |
Don Skidmore | d08935c | 2010-06-11 13:20:29 +0000 | [diff] [blame] | 5464 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
| 5465 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
| 5466 | return; |
| 5467 | |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5468 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 5469 | u64 rsc_count = 0; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5470 | u64 rsc_flush = 0; |
PJ Waskiewicz | d51019a | 2009-03-13 22:12:48 +0000 | [diff] [blame] | 5471 | for (i = 0; i < 16; i++) |
| 5472 | adapter->hw_rx_no_dma_resources += |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5473 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5474 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 5475 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
| 5476 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5477 | } |
| 5478 | adapter->rsc_total_count = rsc_count; |
| 5479 | adapter->rsc_total_flush = rsc_flush; |
PJ Waskiewicz | d51019a | 2009-03-13 22:12:48 +0000 | [diff] [blame] | 5480 | } |
| 5481 | |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 5482 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 5483 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; |
| 5484 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; |
| 5485 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; |
| 5486 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; |
| 5487 | bytes += rx_ring->stats.bytes; |
| 5488 | packets += rx_ring->stats.packets; |
| 5489 | } |
Mallikarjuna R Chilakala | eb985f0 | 2009-12-15 11:56:59 +0000 | [diff] [blame] | 5490 | adapter->non_eop_descs = non_eop_descs; |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 5491 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; |
| 5492 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; |
| 5493 | netdev->stats.rx_bytes = bytes; |
| 5494 | netdev->stats.rx_packets = packets; |
| 5495 | |
| 5496 | bytes = 0; |
| 5497 | packets = 0; |
| 5498 | /* gather some stats to the adapter struct that are per queue */ |
| 5499 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 5500 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; |
| 5501 | restart_queue += tx_ring->tx_stats.restart_queue; |
| 5502 | tx_busy += tx_ring->tx_stats.tx_busy; |
| 5503 | bytes += tx_ring->stats.bytes; |
| 5504 | packets += tx_ring->stats.packets; |
| 5505 | } |
| 5506 | adapter->restart_queue = restart_queue; |
| 5507 | adapter->tx_busy = tx_busy; |
| 5508 | netdev->stats.tx_bytes = bytes; |
| 5509 | netdev->stats.tx_packets = packets; |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 5510 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5511 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5512 | for (i = 0; i < 8; i++) { |
| 5513 | /* for packet buffers not used, the register should read 0 */ |
| 5514 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); |
| 5515 | missed_rx += mpc; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5516 | hwstats->mpc[i] += mpc; |
| 5517 | total_mpc += hwstats->mpc[i]; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5518 | if (hw->mac.type == ixgbe_mac_82598EB) |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5519 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
| 5520 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); |
| 5521 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); |
| 5522 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); |
| 5523 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5524 | if (hw->mac.type == ixgbe_mac_82599EB) { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5525 | hwstats->pxonrxc[i] += |
| 5526 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); |
| 5527 | hwstats->pxoffrxc[i] += |
| 5528 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
| 5529 | hwstats->qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5530 | } else { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5531 | hwstats->pxonrxc[i] += |
| 5532 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); |
| 5533 | hwstats->pxoffrxc[i] += |
| 5534 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5535 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5536 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
| 5537 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5538 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5539 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5540 | /* work around hardware counting issue */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5541 | hwstats->gprc -= missed_rx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5542 | |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5543 | /* 82598 hardware only has a 32 bit counter in the high register */ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5544 | if (hw->mac.type == ixgbe_mac_82599EB) { |
Ben Greear | aad7191 | 2009-09-30 12:08:16 +0000 | [diff] [blame] | 5545 | u64 tmp; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5546 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5547 | tmp = IXGBE_READ_REG(hw, IXGBE_GORCH) & 0xF; |
| 5548 | /* 4 high bits of GORC */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5549 | hwstats->gorc += (tmp << 32); |
| 5550 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5551 | tmp = IXGBE_READ_REG(hw, IXGBE_GOTCH) & 0xF; |
| 5552 | /* 4 high bits of GOTC */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5553 | hwstats->gotc += (tmp << 32); |
| 5554 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5555 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5556 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
| 5557 | hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); |
| 5558 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
| 5559 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); |
Yi Zou | 6d45522 | 2009-05-13 13:12:16 +0000 | [diff] [blame] | 5560 | #ifdef IXGBE_FCOE |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5561 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
| 5562 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); |
| 5563 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); |
| 5564 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); |
| 5565 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); |
| 5566 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); |
Yi Zou | 6d45522 | 2009-05-13 13:12:16 +0000 | [diff] [blame] | 5567 | #endif /* IXGBE_FCOE */ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5568 | } else { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5569 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); |
| 5570 | hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); |
| 5571 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
| 5572 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); |
| 5573 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5574 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5575 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5576 | hwstats->bprc += bprc; |
| 5577 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5578 | if (hw->mac.type == ixgbe_mac_82598EB) |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5579 | hwstats->mprc -= bprc; |
| 5580 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); |
| 5581 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); |
| 5582 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); |
| 5583 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); |
| 5584 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); |
| 5585 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); |
| 5586 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); |
| 5587 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5588 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5589 | hwstats->lxontxc += lxon; |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5590 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5591 | hwstats->lxofftxc += lxoff; |
| 5592 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
| 5593 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
| 5594 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5595 | /* |
| 5596 | * 82598 errata - tx of flow control packets is included in tx counters |
| 5597 | */ |
| 5598 | xon_off_tot = lxon + lxoff; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5599 | hwstats->gptc -= xon_off_tot; |
| 5600 | hwstats->mptc -= xon_off_tot; |
| 5601 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); |
| 5602 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
| 5603 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); |
| 5604 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); |
| 5605 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); |
| 5606 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); |
| 5607 | hwstats->ptc64 -= xon_off_tot; |
| 5608 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); |
| 5609 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); |
| 5610 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); |
| 5611 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); |
| 5612 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); |
| 5613 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5614 | |
| 5615 | /* Fill out the OS statistics structure */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5616 | netdev->stats.multicast = hwstats->mprc; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5617 | |
| 5618 | /* Rx Errors */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5619 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5620 | netdev->stats.rx_dropped = 0; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5621 | netdev->stats.rx_length_errors = hwstats->rlec; |
| 5622 | netdev->stats.rx_crc_errors = hwstats->crcerrs; |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5623 | netdev->stats.rx_missed_errors = total_mpc; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5624 | } |
| 5625 | |
| 5626 | /** |
| 5627 | * ixgbe_watchdog - Timer Call-back |
| 5628 | * @data: pointer to adapter cast into an unsigned long |
| 5629 | **/ |
| 5630 | static void ixgbe_watchdog(unsigned long data) |
| 5631 | { |
| 5632 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5633 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5634 | u64 eics = 0; |
| 5635 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5636 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5637 | /* |
| 5638 | * Do the watchdog outside of interrupt context due to the lovely |
| 5639 | * delays that some of the newer hardware requires |
| 5640 | */ |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 5641 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5642 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
| 5643 | goto watchdog_short_circuit; |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 5644 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5645 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
| 5646 | /* |
| 5647 | * for legacy and MSI interrupts don't set any bits |
| 5648 | * that are enabled for EIAM, because this operation |
| 5649 | * would set *both* EIMS and EICS for any bit in EIAM |
| 5650 | */ |
| 5651 | IXGBE_WRITE_REG(hw, IXGBE_EICS, |
| 5652 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); |
| 5653 | goto watchdog_reschedule; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5654 | } |
| 5655 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5656 | /* get one bit for every active tx/rx interrupt vector */ |
| 5657 | for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) { |
| 5658 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
| 5659 | if (qv->rxr_count || qv->txr_count) |
| 5660 | eics |= ((u64)1 << i); |
| 5661 | } |
| 5662 | |
| 5663 | /* Cause software interrupt to ensure rx rings are cleaned */ |
| 5664 | ixgbe_irq_rearm_queues(adapter, eics); |
| 5665 | |
| 5666 | watchdog_reschedule: |
| 5667 | /* Reset the timer */ |
| 5668 | mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ)); |
| 5669 | |
| 5670 | watchdog_short_circuit: |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5671 | schedule_work(&adapter->watchdog_task); |
| 5672 | } |
| 5673 | |
| 5674 | /** |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5675 | * ixgbe_multispeed_fiber_task - worker thread to configure multispeed fiber |
| 5676 | * @work: pointer to work_struct containing our data |
| 5677 | **/ |
| 5678 | static void ixgbe_multispeed_fiber_task(struct work_struct *work) |
| 5679 | { |
| 5680 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5681 | struct ixgbe_adapter, |
| 5682 | multispeed_fiber_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5683 | struct ixgbe_hw *hw = &adapter->hw; |
| 5684 | u32 autoneg; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5685 | bool negotiation; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5686 | |
| 5687 | adapter->flags |= IXGBE_FLAG_IN_SFP_LINK_TASK; |
Mallikarjuna R Chilakala | a1f2532 | 2009-06-30 11:44:36 +0000 | [diff] [blame] | 5688 | autoneg = hw->phy.autoneg_advertised; |
| 5689 | if ((!autoneg) && (hw->mac.ops.get_link_capabilities)) |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5690 | hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation); |
Mallikarjuna R Chilakala | 1097cd1 | 2010-03-18 14:34:52 +0000 | [diff] [blame] | 5691 | hw->mac.autotry_restart = false; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5692 | if (hw->mac.ops.setup_link) |
| 5693 | hw->mac.ops.setup_link(hw, autoneg, negotiation, true); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5694 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 5695 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_LINK_TASK; |
| 5696 | } |
| 5697 | |
| 5698 | /** |
| 5699 | * ixgbe_sfp_config_module_task - worker thread to configure a new SFP+ module |
| 5700 | * @work: pointer to work_struct containing our data |
| 5701 | **/ |
| 5702 | static void ixgbe_sfp_config_module_task(struct work_struct *work) |
| 5703 | { |
| 5704 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5705 | struct ixgbe_adapter, |
| 5706 | sfp_config_module_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5707 | struct ixgbe_hw *hw = &adapter->hw; |
| 5708 | u32 err; |
| 5709 | |
| 5710 | adapter->flags |= IXGBE_FLAG_IN_SFP_MOD_TASK; |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5711 | |
| 5712 | /* Time for electrical oscillations to settle down */ |
| 5713 | msleep(100); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5714 | err = hw->phy.ops.identify_sfp(hw); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5715 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5716 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5717 | e_dev_err("failed to initialize because an unsupported SFP+ " |
| 5718 | "module type was detected.\n"); |
| 5719 | e_dev_err("Reload the driver after installing a supported " |
| 5720 | "module.\n"); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5721 | unregister_netdev(adapter->netdev); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5722 | return; |
| 5723 | } |
| 5724 | hw->mac.ops.setup_sfp(hw); |
| 5725 | |
Tony Breeds | 8d1c3c0 | 2009-04-09 22:29:10 +0000 | [diff] [blame] | 5726 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5727 | /* This will also work for DA Twinax connections */ |
| 5728 | schedule_work(&adapter->multispeed_fiber_task); |
| 5729 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_MOD_TASK; |
| 5730 | } |
| 5731 | |
| 5732 | /** |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5733 | * ixgbe_fdir_reinit_task - worker thread to reinit FDIR filter table |
| 5734 | * @work: pointer to work_struct containing our data |
| 5735 | **/ |
| 5736 | static void ixgbe_fdir_reinit_task(struct work_struct *work) |
| 5737 | { |
| 5738 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5739 | struct ixgbe_adapter, |
| 5740 | fdir_reinit_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5741 | struct ixgbe_hw *hw = &adapter->hw; |
| 5742 | int i; |
| 5743 | |
| 5744 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
| 5745 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 5746 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, |
| 5747 | &(adapter->tx_ring[i]->state)); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5748 | } else { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5749 | e_err(probe, "failed to finish FDIR re-initialization, " |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5750 | "ignored adding FDIR ATR filters\n"); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5751 | } |
| 5752 | /* Done FDIR Re-initialization, enable transmits */ |
| 5753 | netif_tx_start_all_queues(adapter->netdev); |
| 5754 | } |
| 5755 | |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5756 | static DEFINE_MUTEX(ixgbe_watchdog_lock); |
| 5757 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5758 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5759 | * ixgbe_watchdog_task - worker thread to bring link up |
| 5760 | * @work: pointer to work_struct containing our data |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5761 | **/ |
| 5762 | static void ixgbe_watchdog_task(struct work_struct *work) |
| 5763 | { |
| 5764 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5765 | struct ixgbe_adapter, |
| 5766 | watchdog_task); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5767 | struct net_device *netdev = adapter->netdev; |
| 5768 | struct ixgbe_hw *hw = &adapter->hw; |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5769 | u32 link_speed; |
| 5770 | bool link_up; |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5771 | int i; |
| 5772 | struct ixgbe_ring *tx_ring; |
| 5773 | int some_tx_pending = 0; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5774 | |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5775 | mutex_lock(&ixgbe_watchdog_lock); |
| 5776 | |
| 5777 | link_up = adapter->link_up; |
| 5778 | link_speed = adapter->link_speed; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5779 | |
| 5780 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) { |
| 5781 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5782 | if (link_up) { |
| 5783 | #ifdef CONFIG_DCB |
| 5784 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 5785 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5786 | hw->mac.ops.fc_enable(hw, i); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5787 | } else { |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5788 | hw->mac.ops.fc_enable(hw, 0); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5789 | } |
| 5790 | #else |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5791 | hw->mac.ops.fc_enable(hw, 0); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5792 | #endif |
| 5793 | } |
| 5794 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5795 | if (link_up || |
| 5796 | time_after(jiffies, (adapter->link_check_timeout + |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5797 | IXGBE_TRY_LINK_TIMEOUT))) { |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5798 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5799 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5800 | } |
| 5801 | adapter->link_up = link_up; |
| 5802 | adapter->link_speed = link_speed; |
| 5803 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5804 | |
| 5805 | if (link_up) { |
| 5806 | if (!netif_carrier_ok(netdev)) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5807 | bool flow_rx, flow_tx; |
| 5808 | |
| 5809 | if (hw->mac.type == ixgbe_mac_82599EB) { |
| 5810 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); |
| 5811 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); |
Peter P Waskiewicz Jr | 078788b | 2009-07-16 15:50:32 +0000 | [diff] [blame] | 5812 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); |
| 5813 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5814 | } else { |
| 5815 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 5816 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); |
Peter P Waskiewicz Jr | 078788b | 2009-07-16 15:50:32 +0000 | [diff] [blame] | 5817 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); |
| 5818 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5819 | } |
| 5820 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5821 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
Jeff Kirsher | a46e534 | 2008-11-27 00:22:21 -0800 | [diff] [blame] | 5822 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5823 | "10 Gbps" : |
| 5824 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? |
| 5825 | "1 Gbps" : "unknown speed")), |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5826 | ((flow_rx && flow_tx) ? "RX/TX" : |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5827 | (flow_rx ? "RX" : |
| 5828 | (flow_tx ? "TX" : "None")))); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5829 | |
| 5830 | netif_carrier_on(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5831 | } else { |
| 5832 | /* Force detection of hung controller */ |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 5833 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 5834 | tx_ring = adapter->tx_ring[i]; |
| 5835 | set_check_for_tx_hang(tx_ring); |
| 5836 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5837 | } |
| 5838 | } else { |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5839 | adapter->link_up = false; |
| 5840 | adapter->link_speed = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5841 | if (netif_carrier_ok(netdev)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5842 | e_info(drv, "NIC Link is Down\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5843 | netif_carrier_off(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5844 | } |
| 5845 | } |
| 5846 | |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5847 | if (!netif_carrier_ok(netdev)) { |
| 5848 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5849 | tx_ring = adapter->tx_ring[i]; |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5850 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
| 5851 | some_tx_pending = 1; |
| 5852 | break; |
| 5853 | } |
| 5854 | } |
| 5855 | |
| 5856 | if (some_tx_pending) { |
| 5857 | /* We've lost link, so the controller stops DMA, |
| 5858 | * but we've got queued Tx work that's never going |
| 5859 | * to get done, so reset controller to flush Tx. |
| 5860 | * (Do the reset outside of interrupt context). |
| 5861 | */ |
| 5862 | schedule_work(&adapter->reset_task); |
| 5863 | } |
| 5864 | } |
| 5865 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5866 | ixgbe_update_stats(adapter); |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5867 | mutex_unlock(&ixgbe_watchdog_lock); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5868 | } |
| 5869 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5870 | static int ixgbe_tso(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5871 | struct ixgbe_ring *tx_ring, struct sk_buff *skb, |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5872 | u32 tx_flags, u8 *hdr_len, __be16 protocol) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5873 | { |
| 5874 | struct ixgbe_adv_tx_context_desc *context_desc; |
| 5875 | unsigned int i; |
| 5876 | int err; |
| 5877 | struct ixgbe_tx_buffer *tx_buffer_info; |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5878 | u32 vlan_macip_lens = 0, type_tucmd_mlhl; |
| 5879 | u32 mss_l4len_idx, l4len; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5880 | |
| 5881 | if (skb_is_gso(skb)) { |
| 5882 | if (skb_header_cloned(skb)) { |
| 5883 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
| 5884 | if (err) |
| 5885 | return err; |
| 5886 | } |
| 5887 | l4len = tcp_hdrlen(skb); |
| 5888 | *hdr_len += l4len; |
| 5889 | |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5890 | if (protocol == htons(ETH_P_IP)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5891 | struct iphdr *iph = ip_hdr(skb); |
| 5892 | iph->tot_len = 0; |
| 5893 | iph->check = 0; |
| 5894 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5895 | iph->daddr, 0, |
| 5896 | IPPROTO_TCP, |
| 5897 | 0); |
Sridhar Samudrala | 8e1e8a4 | 2010-01-23 02:02:21 -0800 | [diff] [blame] | 5898 | } else if (skb_is_gso_v6(skb)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5899 | ipv6_hdr(skb)->payload_len = 0; |
| 5900 | tcp_hdr(skb)->check = |
| 5901 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5902 | &ipv6_hdr(skb)->daddr, |
| 5903 | 0, IPPROTO_TCP, 0); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5904 | } |
| 5905 | |
| 5906 | i = tx_ring->next_to_use; |
| 5907 | |
| 5908 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 5909 | context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5910 | |
| 5911 | /* VLAN MACLEN IPLEN */ |
| 5912 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 5913 | vlan_macip_lens |= |
| 5914 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); |
| 5915 | vlan_macip_lens |= ((skb_network_offset(skb)) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5916 | IXGBE_ADVTXD_MACLEN_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5917 | *hdr_len += skb_network_offset(skb); |
| 5918 | vlan_macip_lens |= |
| 5919 | (skb_transport_header(skb) - skb_network_header(skb)); |
| 5920 | *hdr_len += |
| 5921 | (skb_transport_header(skb) - skb_network_header(skb)); |
| 5922 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
| 5923 | context_desc->seqnum_seed = 0; |
| 5924 | |
| 5925 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5926 | type_tucmd_mlhl = (IXGBE_TXD_CMD_DEXT | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5927 | IXGBE_ADVTXD_DTYP_CTXT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5928 | |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5929 | if (protocol == htons(ETH_P_IP)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5930 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4; |
| 5931 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5932 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); |
| 5933 | |
| 5934 | /* MSS L4LEN IDX */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5935 | mss_l4len_idx = |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5936 | (skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT); |
| 5937 | mss_l4len_idx |= (l4len << IXGBE_ADVTXD_L4LEN_SHIFT); |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 5938 | /* use index 1 for TSO */ |
| 5939 | mss_l4len_idx |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5940 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); |
| 5941 | |
| 5942 | tx_buffer_info->time_stamp = jiffies; |
| 5943 | tx_buffer_info->next_to_watch = i; |
| 5944 | |
| 5945 | i++; |
| 5946 | if (i == tx_ring->count) |
| 5947 | i = 0; |
| 5948 | tx_ring->next_to_use = i; |
| 5949 | |
| 5950 | return true; |
| 5951 | } |
| 5952 | return false; |
| 5953 | } |
| 5954 | |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5955 | static u32 ixgbe_psum(struct ixgbe_adapter *adapter, struct sk_buff *skb, |
| 5956 | __be16 protocol) |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5957 | { |
| 5958 | u32 rtn = 0; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5959 | |
| 5960 | switch (protocol) { |
| 5961 | case cpu_to_be16(ETH_P_IP): |
| 5962 | rtn |= IXGBE_ADVTXD_TUCMD_IPV4; |
| 5963 | switch (ip_hdr(skb)->protocol) { |
| 5964 | case IPPROTO_TCP: |
| 5965 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5966 | break; |
| 5967 | case IPPROTO_SCTP: |
| 5968 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
| 5969 | break; |
| 5970 | } |
| 5971 | break; |
| 5972 | case cpu_to_be16(ETH_P_IPV6): |
| 5973 | /* XXX what about other V6 headers?? */ |
| 5974 | switch (ipv6_hdr(skb)->nexthdr) { |
| 5975 | case IPPROTO_TCP: |
| 5976 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5977 | break; |
| 5978 | case IPPROTO_SCTP: |
| 5979 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
| 5980 | break; |
| 5981 | } |
| 5982 | break; |
| 5983 | default: |
| 5984 | if (unlikely(net_ratelimit())) |
| 5985 | e_warn(probe, "partial checksum but proto=%x!\n", |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5986 | protocol); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5987 | break; |
| 5988 | } |
| 5989 | |
| 5990 | return rtn; |
| 5991 | } |
| 5992 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5993 | static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5994 | struct ixgbe_ring *tx_ring, |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 5995 | struct sk_buff *skb, u32 tx_flags, |
| 5996 | __be16 protocol) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5997 | { |
| 5998 | struct ixgbe_adv_tx_context_desc *context_desc; |
| 5999 | unsigned int i; |
| 6000 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 6001 | u32 vlan_macip_lens = 0, type_tucmd_mlhl = 0; |
| 6002 | |
| 6003 | if (skb->ip_summed == CHECKSUM_PARTIAL || |
| 6004 | (tx_flags & IXGBE_TX_FLAGS_VLAN)) { |
| 6005 | i = tx_ring->next_to_use; |
| 6006 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 6007 | context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6008 | |
| 6009 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 6010 | vlan_macip_lens |= |
| 6011 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); |
| 6012 | vlan_macip_lens |= (skb_network_offset(skb) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6013 | IXGBE_ADVTXD_MACLEN_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6014 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
| 6015 | vlan_macip_lens |= (skb_transport_header(skb) - |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6016 | skb_network_header(skb)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6017 | |
| 6018 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
| 6019 | context_desc->seqnum_seed = 0; |
| 6020 | |
| 6021 | type_tucmd_mlhl |= (IXGBE_TXD_CMD_DEXT | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6022 | IXGBE_ADVTXD_DTYP_CTXT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6023 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 6024 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6025 | type_tucmd_mlhl |= ixgbe_psum(adapter, skb, protocol); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6026 | |
| 6027 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 6028 | /* use index zero for tx checksum offload */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6029 | context_desc->mss_l4len_idx = 0; |
| 6030 | |
| 6031 | tx_buffer_info->time_stamp = jiffies; |
| 6032 | tx_buffer_info->next_to_watch = i; |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6033 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6034 | i++; |
| 6035 | if (i == tx_ring->count) |
| 6036 | i = 0; |
| 6037 | tx_ring->next_to_use = i; |
| 6038 | |
| 6039 | return true; |
| 6040 | } |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6041 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6042 | return false; |
| 6043 | } |
| 6044 | |
| 6045 | static int ixgbe_tx_map(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6046 | struct ixgbe_ring *tx_ring, |
| 6047 | struct sk_buff *skb, u32 tx_flags, |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 6048 | unsigned int first, const u8 hdr_len) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6049 | { |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6050 | struct device *dev = tx_ring->dev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6051 | struct ixgbe_tx_buffer *tx_buffer_info; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6052 | unsigned int len; |
| 6053 | unsigned int total = skb->len; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6054 | unsigned int offset = 0, size, count = 0, i; |
| 6055 | unsigned int nr_frags = skb_shinfo(skb)->nr_frags; |
| 6056 | unsigned int f; |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 6057 | unsigned int bytecount = skb->len; |
| 6058 | u16 gso_segs = 1; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6059 | |
| 6060 | i = tx_ring->next_to_use; |
| 6061 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6062 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) |
| 6063 | /* excluding fcoe_crc_eof for FCoE */ |
| 6064 | total -= sizeof(struct fcoe_crc_eof); |
| 6065 | |
| 6066 | len = min(skb_headlen(skb), total); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6067 | while (len) { |
| 6068 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 6069 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); |
| 6070 | |
| 6071 | tx_buffer_info->length = size; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6072 | tx_buffer_info->mapped_as_page = false; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6073 | tx_buffer_info->dma = dma_map_single(dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6074 | skb->data + offset, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6075 | size, DMA_TO_DEVICE); |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6076 | if (dma_mapping_error(dev, tx_buffer_info->dma)) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6077 | goto dma_error; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6078 | tx_buffer_info->time_stamp = jiffies; |
| 6079 | tx_buffer_info->next_to_watch = i; |
| 6080 | |
| 6081 | len -= size; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6082 | total -= size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6083 | offset += size; |
| 6084 | count++; |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6085 | |
| 6086 | if (len) { |
| 6087 | i++; |
| 6088 | if (i == tx_ring->count) |
| 6089 | i = 0; |
| 6090 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6091 | } |
| 6092 | |
| 6093 | for (f = 0; f < nr_frags; f++) { |
| 6094 | struct skb_frag_struct *frag; |
| 6095 | |
| 6096 | frag = &skb_shinfo(skb)->frags[f]; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6097 | len = min((unsigned int)frag->size, total); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6098 | offset = frag->page_offset; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6099 | |
| 6100 | while (len) { |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6101 | i++; |
| 6102 | if (i == tx_ring->count) |
| 6103 | i = 0; |
| 6104 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6105 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 6106 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); |
| 6107 | |
| 6108 | tx_buffer_info->length = size; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6109 | tx_buffer_info->dma = dma_map_page(dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6110 | frag->page, |
| 6111 | offset, size, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6112 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6113 | tx_buffer_info->mapped_as_page = true; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6114 | if (dma_mapping_error(dev, tx_buffer_info->dma)) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6115 | goto dma_error; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6116 | tx_buffer_info->time_stamp = jiffies; |
| 6117 | tx_buffer_info->next_to_watch = i; |
| 6118 | |
| 6119 | len -= size; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6120 | total -= size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6121 | offset += size; |
| 6122 | count++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6123 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6124 | if (total == 0) |
| 6125 | break; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6126 | } |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6127 | |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 6128 | if (tx_flags & IXGBE_TX_FLAGS_TSO) |
| 6129 | gso_segs = skb_shinfo(skb)->gso_segs; |
| 6130 | #ifdef IXGBE_FCOE |
| 6131 | /* adjust for FCoE Sequence Offload */ |
| 6132 | else if (tx_flags & IXGBE_TX_FLAGS_FSO) |
| 6133 | gso_segs = DIV_ROUND_UP(skb->len - hdr_len, |
| 6134 | skb_shinfo(skb)->gso_size); |
| 6135 | #endif /* IXGBE_FCOE */ |
| 6136 | bytecount += (gso_segs - 1) * hdr_len; |
| 6137 | |
| 6138 | /* multiply data chunks by size of headers */ |
| 6139 | tx_ring->tx_buffer_info[i].bytecount = bytecount; |
| 6140 | tx_ring->tx_buffer_info[i].gso_segs = gso_segs; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6141 | tx_ring->tx_buffer_info[i].skb = skb; |
| 6142 | tx_ring->tx_buffer_info[first].next_to_watch = i; |
| 6143 | |
| 6144 | return count; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6145 | |
| 6146 | dma_error: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6147 | e_dev_err("TX DMA map failed\n"); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6148 | |
| 6149 | /* clear timestamp and dma mappings for failed tx_buffer_info map */ |
| 6150 | tx_buffer_info->dma = 0; |
| 6151 | tx_buffer_info->time_stamp = 0; |
| 6152 | tx_buffer_info->next_to_watch = 0; |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6153 | if (count) |
| 6154 | count--; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6155 | |
| 6156 | /* clear timestamp and dma mappings for remaining portion of packet */ |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6157 | while (count--) { |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6158 | if (i == 0) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6159 | i += tx_ring->count; |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6160 | i--; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6161 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | b6ec895 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6162 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6163 | } |
| 6164 | |
Anton Blanchard | e44d38e | 2010-02-03 13:12:51 +0000 | [diff] [blame] | 6165 | return 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6166 | } |
| 6167 | |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6168 | static void ixgbe_tx_queue(struct ixgbe_ring *tx_ring, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6169 | int tx_flags, int count, u32 paylen, u8 hdr_len) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6170 | { |
| 6171 | union ixgbe_adv_tx_desc *tx_desc = NULL; |
| 6172 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 6173 | u32 olinfo_status = 0, cmd_type_len = 0; |
| 6174 | unsigned int i; |
| 6175 | u32 txd_cmd = IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS | IXGBE_TXD_CMD_IFCS; |
| 6176 | |
| 6177 | cmd_type_len |= IXGBE_ADVTXD_DTYP_DATA; |
| 6178 | |
| 6179 | cmd_type_len |= IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT; |
| 6180 | |
| 6181 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 6182 | cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE; |
| 6183 | |
| 6184 | if (tx_flags & IXGBE_TX_FLAGS_TSO) { |
| 6185 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; |
| 6186 | |
| 6187 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6188 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6189 | |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 6190 | /* use index 1 context for tso */ |
| 6191 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6192 | if (tx_flags & IXGBE_TX_FLAGS_IPV4) |
| 6193 | olinfo_status |= IXGBE_TXD_POPTS_IXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6194 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6195 | |
| 6196 | } else if (tx_flags & IXGBE_TX_FLAGS_CSUM) |
| 6197 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6198 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6199 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6200 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
| 6201 | olinfo_status |= IXGBE_ADVTXD_CC; |
| 6202 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
| 6203 | if (tx_flags & IXGBE_TX_FLAGS_FSO) |
| 6204 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; |
| 6205 | } |
| 6206 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6207 | olinfo_status |= ((paylen - hdr_len) << IXGBE_ADVTXD_PAYLEN_SHIFT); |
| 6208 | |
| 6209 | i = tx_ring->next_to_use; |
| 6210 | while (count--) { |
| 6211 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 6212 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6213 | tx_desc->read.buffer_addr = cpu_to_le64(tx_buffer_info->dma); |
| 6214 | tx_desc->read.cmd_type_len = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6215 | cpu_to_le32(cmd_type_len | tx_buffer_info->length); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6216 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6217 | i++; |
| 6218 | if (i == tx_ring->count) |
| 6219 | i = 0; |
| 6220 | } |
| 6221 | |
| 6222 | tx_desc->read.cmd_type_len |= cpu_to_le32(txd_cmd); |
| 6223 | |
| 6224 | /* |
| 6225 | * Force memory writes to complete before letting h/w |
| 6226 | * know there are new descriptors to fetch. (Only |
| 6227 | * applicable for weak-ordered memory model archs, |
| 6228 | * such as IA-64). |
| 6229 | */ |
| 6230 | wmb(); |
| 6231 | |
| 6232 | tx_ring->next_to_use = i; |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6233 | writel(i, tx_ring->tail); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6234 | } |
| 6235 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6236 | static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb, |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6237 | u8 queue, u32 tx_flags, __be16 protocol) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6238 | { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6239 | struct ixgbe_atr_input atr_input; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6240 | struct iphdr *iph = ip_hdr(skb); |
| 6241 | struct ethhdr *eth = (struct ethhdr *)skb->data; |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6242 | struct tcphdr *th; |
| 6243 | u16 vlan_id; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6244 | |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6245 | /* Right now, we support IPv4 w/ TCP only */ |
| 6246 | if (protocol != htons(ETH_P_IP) || |
| 6247 | iph->protocol != IPPROTO_TCP) |
Guillaume Gaudonville | d3ead24 | 2010-06-29 18:29:00 +0000 | [diff] [blame] | 6248 | return; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6249 | |
| 6250 | memset(&atr_input, 0, sizeof(struct ixgbe_atr_input)); |
| 6251 | |
| 6252 | vlan_id = (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK) >> |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6253 | IXGBE_TX_FLAGS_VLAN_SHIFT; |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6254 | |
| 6255 | th = tcp_hdr(skb); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6256 | |
| 6257 | ixgbe_atr_set_vlan_id_82599(&atr_input, vlan_id); |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6258 | ixgbe_atr_set_src_port_82599(&atr_input, th->dest); |
| 6259 | ixgbe_atr_set_dst_port_82599(&atr_input, th->source); |
| 6260 | ixgbe_atr_set_flex_byte_82599(&atr_input, eth->h_proto); |
| 6261 | ixgbe_atr_set_l4type_82599(&atr_input, IXGBE_ATR_L4TYPE_TCP); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6262 | /* src and dst are inverted, think how the receiver sees them */ |
Alexander Duyck | ee9e0f0 | 2010-11-16 19:27:01 -0800 | [diff] [blame^] | 6263 | ixgbe_atr_set_src_ipv4_82599(&atr_input, iph->daddr); |
| 6264 | ixgbe_atr_set_dst_ipv4_82599(&atr_input, iph->saddr); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6265 | |
| 6266 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ |
| 6267 | ixgbe_fdir_add_signature_filter_82599(&adapter->hw, &atr_input, queue); |
| 6268 | } |
| 6269 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6270 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, int size) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6271 | { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6272 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6273 | /* Herbert's original patch had: |
| 6274 | * smp_mb__after_netif_stop_queue(); |
| 6275 | * but since that doesn't exist yet, just open code it. */ |
| 6276 | smp_mb(); |
| 6277 | |
| 6278 | /* We need to check again in a case another CPU has just |
| 6279 | * made room available. */ |
| 6280 | if (likely(IXGBE_DESC_UNUSED(tx_ring) < size)) |
| 6281 | return -EBUSY; |
| 6282 | |
| 6283 | /* A reprieve! - use start_queue because it doesn't call schedule */ |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6284 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 6285 | ++tx_ring->tx_stats.restart_queue; |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6286 | return 0; |
| 6287 | } |
| 6288 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6289 | static int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, int size) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6290 | { |
| 6291 | if (likely(IXGBE_DESC_UNUSED(tx_ring) >= size)) |
| 6292 | return 0; |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6293 | return __ixgbe_maybe_stop_tx(tx_ring, size); |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6294 | } |
| 6295 | |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6296 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 6297 | { |
| 6298 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6299 | int txq = smp_processor_id(); |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6300 | #ifdef IXGBE_FCOE |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6301 | __be16 protocol; |
| 6302 | |
| 6303 | protocol = vlan_get_protocol(skb); |
| 6304 | |
| 6305 | if ((protocol == htons(ETH_P_FCOE)) || |
| 6306 | (protocol == htons(ETH_P_FIP))) { |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6307 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 6308 | txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); |
| 6309 | txq += adapter->ring_feature[RING_F_FCOE].mask; |
| 6310 | return txq; |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6311 | #ifdef CONFIG_IXGBE_DCB |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6312 | } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6313 | txq = adapter->fcoe.up; |
| 6314 | return txq; |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6315 | #endif |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6316 | } |
| 6317 | } |
| 6318 | #endif |
| 6319 | |
Krishna Kumar | fdd3d63 | 2010-02-03 13:13:10 +0000 | [diff] [blame] | 6320 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
| 6321 | while (unlikely(txq >= dev->real_num_tx_queues)) |
| 6322 | txq -= dev->real_num_tx_queues; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6323 | return txq; |
Krishna Kumar | fdd3d63 | 2010-02-03 13:13:10 +0000 | [diff] [blame] | 6324 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6325 | |
John Fastabend | 2ea186a | 2010-02-27 03:28:24 -0800 | [diff] [blame] | 6326 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6327 | if (skb->priority == TC_PRIO_CONTROL) |
| 6328 | txq = adapter->ring_feature[RING_F_DCB].indices-1; |
| 6329 | else |
| 6330 | txq = (skb->vlan_tci & IXGBE_TX_FLAGS_VLAN_PRIO_MASK) |
| 6331 | >> 13; |
| 6332 | return txq; |
| 6333 | } |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6334 | |
| 6335 | return skb_tx_hash(dev, skb); |
| 6336 | } |
| 6337 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6338 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 6339 | struct ixgbe_adapter *adapter, |
| 6340 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6341 | { |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6342 | struct net_device *netdev = tx_ring->netdev; |
Eric Dumazet | 60d5113 | 2009-12-08 07:22:03 +0000 | [diff] [blame] | 6343 | struct netdev_queue *txq; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6344 | unsigned int first; |
| 6345 | unsigned int tx_flags = 0; |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 6346 | u8 hdr_len = 0; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6347 | int tso; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6348 | int count = 0; |
| 6349 | unsigned int f; |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6350 | __be16 protocol; |
| 6351 | |
| 6352 | protocol = vlan_get_protocol(skb); |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6353 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 6354 | if (vlan_tx_tag_present(skb)) { |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6355 | tx_flags |= vlan_tx_tag_get(skb); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6356 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6357 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6358 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6359 | } |
| 6360 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; |
| 6361 | tx_flags |= IXGBE_TX_FLAGS_VLAN; |
John Fastabend | 33c66bd | 2010-05-18 16:00:11 +0000 | [diff] [blame] | 6362 | } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED && |
| 6363 | skb->priority != TC_PRIO_CONTROL) { |
John Fastabend | 2ea186a | 2010-02-27 03:28:24 -0800 | [diff] [blame] | 6364 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
| 6365 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; |
| 6366 | tx_flags |= IXGBE_TX_FLAGS_VLAN; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6367 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6368 | |
Yi Zou | 09ad1cc | 2009-09-03 14:56:10 +0000 | [diff] [blame] | 6369 | #ifdef IXGBE_FCOE |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6370 | /* for FCoE with DCB, we force the priority to what |
| 6371 | * was specified by the switch */ |
| 6372 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED && |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6373 | (protocol == htons(ETH_P_FCOE) || |
| 6374 | protocol == htons(ETH_P_FIP))) { |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6375 | #ifdef CONFIG_IXGBE_DCB |
| 6376 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6377 | tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK |
| 6378 | << IXGBE_TX_FLAGS_VLAN_SHIFT); |
| 6379 | tx_flags |= ((adapter->fcoe.up << 13) |
| 6380 | << IXGBE_TX_FLAGS_VLAN_SHIFT); |
| 6381 | } |
| 6382 | #endif |
Robert Love | ca77cd5 | 2010-03-24 12:45:00 +0000 | [diff] [blame] | 6383 | /* flag for FCoE offloads */ |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6384 | if (protocol == htons(ETH_P_FCOE)) |
Robert Love | ca77cd5 | 2010-03-24 12:45:00 +0000 | [diff] [blame] | 6385 | tx_flags |= IXGBE_TX_FLAGS_FCOE; |
Yi Zou | 09ad1cc | 2009-09-03 14:56:10 +0000 | [diff] [blame] | 6386 | } |
Robert Love | ca77cd5 | 2010-03-24 12:45:00 +0000 | [diff] [blame] | 6387 | #endif |
| 6388 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6389 | /* four things can cause us to need a context descriptor */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6390 | if (skb_is_gso(skb) || |
| 6391 | (skb->ip_summed == CHECKSUM_PARTIAL) || |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6392 | (tx_flags & IXGBE_TX_FLAGS_VLAN) || |
| 6393 | (tx_flags & IXGBE_TX_FLAGS_FCOE)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6394 | count++; |
| 6395 | |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6396 | count += TXD_USE_COUNT(skb_headlen(skb)); |
| 6397 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6398 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); |
| 6399 | |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6400 | if (ixgbe_maybe_stop_tx(tx_ring, count)) { |
Alexander Duyck | 5b7da51 | 2010-11-16 19:26:50 -0800 | [diff] [blame] | 6401 | tx_ring->tx_stats.tx_busy++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6402 | return NETDEV_TX_BUSY; |
| 6403 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6404 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6405 | first = tx_ring->next_to_use; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6406 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
| 6407 | #ifdef IXGBE_FCOE |
| 6408 | /* setup tx offload for FCoE */ |
| 6409 | tso = ixgbe_fso(adapter, tx_ring, skb, tx_flags, &hdr_len); |
| 6410 | if (tso < 0) { |
| 6411 | dev_kfree_skb_any(skb); |
| 6412 | return NETDEV_TX_OK; |
| 6413 | } |
| 6414 | if (tso) |
| 6415 | tx_flags |= IXGBE_TX_FLAGS_FSO; |
| 6416 | #endif /* IXGBE_FCOE */ |
| 6417 | } else { |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6418 | if (protocol == htons(ETH_P_IP)) |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6419 | tx_flags |= IXGBE_TX_FLAGS_IPV4; |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6420 | tso = ixgbe_tso(adapter, tx_ring, skb, tx_flags, &hdr_len, |
| 6421 | protocol); |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6422 | if (tso < 0) { |
| 6423 | dev_kfree_skb_any(skb); |
| 6424 | return NETDEV_TX_OK; |
| 6425 | } |
| 6426 | |
| 6427 | if (tso) |
| 6428 | tx_flags |= IXGBE_TX_FLAGS_TSO; |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6429 | else if (ixgbe_tx_csum(adapter, tx_ring, skb, tx_flags, |
| 6430 | protocol) && |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6431 | (skb->ip_summed == CHECKSUM_PARTIAL)) |
| 6432 | tx_flags |= IXGBE_TX_FLAGS_CSUM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6433 | } |
| 6434 | |
Alexander Duyck | 8ad494b | 2010-11-16 19:26:47 -0800 | [diff] [blame] | 6435 | count = ixgbe_tx_map(adapter, tx_ring, skb, tx_flags, first, hdr_len); |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6436 | if (count) { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6437 | /* add the ATR filter if ATR is on */ |
| 6438 | if (tx_ring->atr_sample_rate) { |
| 6439 | ++tx_ring->atr_count; |
| 6440 | if ((tx_ring->atr_count >= tx_ring->atr_sample_rate) && |
Alexander Duyck | 7d637bc | 2010-11-16 19:26:56 -0800 | [diff] [blame] | 6441 | test_bit(__IXGBE_TX_FDIR_INIT_DONE, |
| 6442 | &tx_ring->state)) { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6443 | ixgbe_atr(adapter, skb, tx_ring->queue_index, |
Hao Zheng | 5e09a10 | 2010-11-11 13:47:59 +0000 | [diff] [blame] | 6444 | tx_flags, protocol); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6445 | tx_ring->atr_count = 0; |
| 6446 | } |
| 6447 | } |
Eric Dumazet | 60d5113 | 2009-12-08 07:22:03 +0000 | [diff] [blame] | 6448 | txq = netdev_get_tx_queue(netdev, tx_ring->queue_index); |
| 6449 | txq->tx_bytes += skb->len; |
| 6450 | txq->tx_packets++; |
Alexander Duyck | 84ea259 | 2010-11-16 19:26:49 -0800 | [diff] [blame] | 6451 | ixgbe_tx_queue(tx_ring, tx_flags, count, skb->len, hdr_len); |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6452 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6453 | |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6454 | } else { |
| 6455 | dev_kfree_skb_any(skb); |
| 6456 | tx_ring->tx_buffer_info[first].time_stamp = 0; |
| 6457 | tx_ring->next_to_use = first; |
| 6458 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6459 | |
| 6460 | return NETDEV_TX_OK; |
| 6461 | } |
| 6462 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 6463 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
| 6464 | { |
| 6465 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6466 | struct ixgbe_ring *tx_ring; |
| 6467 | |
| 6468 | tx_ring = adapter->tx_ring[skb->queue_mapping]; |
Alexander Duyck | fc77dc3 | 2010-11-16 19:26:51 -0800 | [diff] [blame] | 6469 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 6470 | } |
| 6471 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6472 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6473 | * ixgbe_set_mac - Change the Ethernet Address of the NIC |
| 6474 | * @netdev: network interface device structure |
| 6475 | * @p: pointer to an address structure |
| 6476 | * |
| 6477 | * Returns 0 on success, negative on failure |
| 6478 | **/ |
| 6479 | static int ixgbe_set_mac(struct net_device *netdev, void *p) |
| 6480 | { |
| 6481 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 6482 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6483 | struct sockaddr *addr = p; |
| 6484 | |
| 6485 | if (!is_valid_ether_addr(addr->sa_data)) |
| 6486 | return -EADDRNOTAVAIL; |
| 6487 | |
| 6488 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 6489 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6490 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6491 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
| 6492 | IXGBE_RAH_AV); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6493 | |
| 6494 | return 0; |
| 6495 | } |
| 6496 | |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6497 | static int |
| 6498 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) |
| 6499 | { |
| 6500 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6501 | struct ixgbe_hw *hw = &adapter->hw; |
| 6502 | u16 value; |
| 6503 | int rc; |
| 6504 | |
| 6505 | if (prtad != hw->phy.mdio.prtad) |
| 6506 | return -EINVAL; |
| 6507 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); |
| 6508 | if (!rc) |
| 6509 | rc = value; |
| 6510 | return rc; |
| 6511 | } |
| 6512 | |
| 6513 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, |
| 6514 | u16 addr, u16 value) |
| 6515 | { |
| 6516 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6517 | struct ixgbe_hw *hw = &adapter->hw; |
| 6518 | |
| 6519 | if (prtad != hw->phy.mdio.prtad) |
| 6520 | return -EINVAL; |
| 6521 | return hw->phy.ops.write_reg(hw, addr, devad, value); |
| 6522 | } |
| 6523 | |
| 6524 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) |
| 6525 | { |
| 6526 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6527 | |
| 6528 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); |
| 6529 | } |
| 6530 | |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6531 | /** |
| 6532 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding |
Jiri Pirko | 31278e7 | 2009-06-17 01:12:19 +0000 | [diff] [blame] | 6533 | * netdev->dev_addrs |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6534 | * @netdev: network interface device structure |
| 6535 | * |
| 6536 | * Returns non-zero on failure |
| 6537 | **/ |
| 6538 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) |
| 6539 | { |
| 6540 | int err = 0; |
| 6541 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
| 6542 | struct ixgbe_mac_info *mac = &adapter->hw.mac; |
| 6543 | |
| 6544 | if (is_valid_ether_addr(mac->san_addr)) { |
| 6545 | rtnl_lock(); |
| 6546 | err = dev_addr_add(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); |
| 6547 | rtnl_unlock(); |
| 6548 | } |
| 6549 | return err; |
| 6550 | } |
| 6551 | |
| 6552 | /** |
| 6553 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding |
Jiri Pirko | 31278e7 | 2009-06-17 01:12:19 +0000 | [diff] [blame] | 6554 | * netdev->dev_addrs |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6555 | * @netdev: network interface device structure |
| 6556 | * |
| 6557 | * Returns non-zero on failure |
| 6558 | **/ |
| 6559 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) |
| 6560 | { |
| 6561 | int err = 0; |
| 6562 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
| 6563 | struct ixgbe_mac_info *mac = &adapter->hw.mac; |
| 6564 | |
| 6565 | if (is_valid_ether_addr(mac->san_addr)) { |
| 6566 | rtnl_lock(); |
| 6567 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); |
| 6568 | rtnl_unlock(); |
| 6569 | } |
| 6570 | return err; |
| 6571 | } |
| 6572 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6573 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 6574 | /* |
| 6575 | * Polling 'interrupt' - used by things like netconsole to send skbs |
| 6576 | * without having to re-enable interrupts. It's not called while |
| 6577 | * the interrupt routine is executing. |
| 6578 | */ |
| 6579 | static void ixgbe_netpoll(struct net_device *netdev) |
| 6580 | { |
| 6581 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz Jr | 8f9a716 | 2009-07-30 12:25:09 +0000 | [diff] [blame] | 6582 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6583 | |
Alexander Duyck | 1a647bd | 2010-01-13 01:49:13 +0000 | [diff] [blame] | 6584 | /* if interface is down do nothing */ |
| 6585 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
| 6586 | return; |
| 6587 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6588 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
Peter P Waskiewicz Jr | 8f9a716 | 2009-07-30 12:25:09 +0000 | [diff] [blame] | 6589 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 6590 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 6591 | for (i = 0; i < num_q_vectors; i++) { |
| 6592 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
| 6593 | ixgbe_msix_clean_many(0, q_vector); |
| 6594 | } |
| 6595 | } else { |
| 6596 | ixgbe_intr(adapter->pdev->irq, netdev); |
| 6597 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6598 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6599 | } |
| 6600 | #endif |
| 6601 | |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6602 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
| 6603 | struct rtnl_link_stats64 *stats) |
| 6604 | { |
| 6605 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6606 | int i; |
| 6607 | |
| 6608 | /* accurate rx/tx bytes/packets stats */ |
| 6609 | dev_txq_stats_fold(netdev, stats); |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 6610 | rcu_read_lock(); |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6611 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 6612 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6613 | u64 bytes, packets; |
| 6614 | unsigned int start; |
| 6615 | |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 6616 | if (ring) { |
| 6617 | do { |
| 6618 | start = u64_stats_fetch_begin_bh(&ring->syncp); |
| 6619 | packets = ring->stats.packets; |
| 6620 | bytes = ring->stats.bytes; |
| 6621 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); |
| 6622 | stats->rx_packets += packets; |
| 6623 | stats->rx_bytes += bytes; |
| 6624 | } |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6625 | } |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 6626 | rcu_read_unlock(); |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6627 | /* following stats updated by ixgbe_watchdog_task() */ |
| 6628 | stats->multicast = netdev->stats.multicast; |
| 6629 | stats->rx_errors = netdev->stats.rx_errors; |
| 6630 | stats->rx_length_errors = netdev->stats.rx_length_errors; |
| 6631 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; |
| 6632 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; |
| 6633 | return stats; |
| 6634 | } |
| 6635 | |
| 6636 | |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6637 | static const struct net_device_ops ixgbe_netdev_ops = { |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6638 | .ndo_open = ixgbe_open, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6639 | .ndo_stop = ixgbe_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 6640 | .ndo_start_xmit = ixgbe_xmit_frame, |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6641 | .ndo_select_queue = ixgbe_select_queue, |
Chris Leech | e90d400 | 2009-03-10 16:00:24 +0000 | [diff] [blame] | 6642 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6643 | .ndo_set_multicast_list = ixgbe_set_rx_mode, |
| 6644 | .ndo_validate_addr = eth_validate_addr, |
| 6645 | .ndo_set_mac_address = ixgbe_set_mac, |
| 6646 | .ndo_change_mtu = ixgbe_change_mtu, |
| 6647 | .ndo_tx_timeout = ixgbe_tx_timeout, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6648 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
| 6649 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6650 | .ndo_do_ioctl = ixgbe_ioctl, |
Greg Rose | 7f01648 | 2010-05-04 22:12:06 +0000 | [diff] [blame] | 6651 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
| 6652 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, |
| 6653 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, |
| 6654 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame] | 6655 | .ndo_get_stats64 = ixgbe_get_stats64, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6656 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 6657 | .ndo_poll_controller = ixgbe_netpoll, |
| 6658 | #endif |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 6659 | #ifdef IXGBE_FCOE |
| 6660 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, |
| 6661 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
Yi Zou | 8450ff8 | 2009-08-31 12:32:14 +0000 | [diff] [blame] | 6662 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
| 6663 | .ndo_fcoe_disable = ixgbe_fcoe_disable, |
Yi Zou | 61a1fa1 | 2009-10-28 18:24:56 +0000 | [diff] [blame] | 6664 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 6665 | #endif /* IXGBE_FCOE */ |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6666 | }; |
| 6667 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6668 | static void __devinit ixgbe_probe_vf(struct ixgbe_adapter *adapter, |
| 6669 | const struct ixgbe_info *ii) |
| 6670 | { |
| 6671 | #ifdef CONFIG_PCI_IOV |
| 6672 | struct ixgbe_hw *hw = &adapter->hw; |
| 6673 | int err; |
| 6674 | |
| 6675 | if (hw->mac.type != ixgbe_mac_82599EB || !max_vfs) |
| 6676 | return; |
| 6677 | |
| 6678 | /* The 82599 supports up to 64 VFs per physical function |
| 6679 | * but this implementation limits allocation to 63 so that |
| 6680 | * basic networking resources are still available to the |
| 6681 | * physical function |
| 6682 | */ |
| 6683 | adapter->num_vfs = (max_vfs > 63) ? 63 : max_vfs; |
| 6684 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; |
| 6685 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); |
| 6686 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6687 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6688 | goto err_novfs; |
| 6689 | } |
| 6690 | /* If call to enable VFs succeeded then allocate memory |
| 6691 | * for per VF control structures. |
| 6692 | */ |
| 6693 | adapter->vfinfo = |
| 6694 | kcalloc(adapter->num_vfs, |
| 6695 | sizeof(struct vf_data_storage), GFP_KERNEL); |
| 6696 | if (adapter->vfinfo) { |
| 6697 | /* Now that we're sure SR-IOV is enabled |
| 6698 | * and memory allocated set up the mailbox parameters |
| 6699 | */ |
| 6700 | ixgbe_init_mbx_params_pf(hw); |
| 6701 | memcpy(&hw->mbx.ops, ii->mbx_ops, |
| 6702 | sizeof(hw->mbx.ops)); |
| 6703 | |
| 6704 | /* Disable RSC when in SR-IOV mode */ |
| 6705 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | |
| 6706 | IXGBE_FLAG2_RSC_ENABLED); |
| 6707 | return; |
| 6708 | } |
| 6709 | |
| 6710 | /* Oh oh */ |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6711 | e_err(probe, "Unable to allocate memory for VF Data Storage - " |
| 6712 | "SRIOV disabled\n"); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6713 | pci_disable_sriov(adapter->pdev); |
| 6714 | |
| 6715 | err_novfs: |
| 6716 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
| 6717 | adapter->num_vfs = 0; |
| 6718 | #endif /* CONFIG_PCI_IOV */ |
| 6719 | } |
| 6720 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6721 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6722 | * ixgbe_probe - Device Initialization Routine |
| 6723 | * @pdev: PCI device information struct |
| 6724 | * @ent: entry in ixgbe_pci_tbl |
| 6725 | * |
| 6726 | * Returns 0 on success, negative on failure |
| 6727 | * |
| 6728 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. |
| 6729 | * The OS initialization, configuring of the adapter private structure, |
| 6730 | * and a hardware reset occur. |
| 6731 | **/ |
| 6732 | static int __devinit ixgbe_probe(struct pci_dev *pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6733 | const struct pci_device_id *ent) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6734 | { |
| 6735 | struct net_device *netdev; |
| 6736 | struct ixgbe_adapter *adapter = NULL; |
| 6737 | struct ixgbe_hw *hw; |
| 6738 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6739 | static int cards_found; |
| 6740 | int i, err, pci_using_dac; |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6741 | unsigned int indices = num_possible_cpus(); |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6742 | #ifdef IXGBE_FCOE |
| 6743 | u16 device_caps; |
| 6744 | #endif |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6745 | u32 part_num, eec; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6746 | |
Andy Gospodarek | bded64a | 2010-07-21 06:40:31 +0000 | [diff] [blame] | 6747 | /* Catch broken hardware that put the wrong VF device ID in |
| 6748 | * the PCIe SR-IOV capability. |
| 6749 | */ |
| 6750 | if (pdev->is_virtfn) { |
| 6751 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", |
| 6752 | pci_name(pdev), pdev->vendor, pdev->device); |
| 6753 | return -EINVAL; |
| 6754 | } |
| 6755 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 6756 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6757 | if (err) |
| 6758 | return err; |
| 6759 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6760 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
| 6761 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6762 | pci_using_dac = 1; |
| 6763 | } else { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6764 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6765 | if (err) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6766 | err = dma_set_coherent_mask(&pdev->dev, |
| 6767 | DMA_BIT_MASK(32)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6768 | if (err) { |
Dan Carpenter | b8bc042 | 2010-07-27 00:05:56 +0000 | [diff] [blame] | 6769 | dev_err(&pdev->dev, |
| 6770 | "No usable DMA configuration, aborting\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6771 | goto err_dma; |
| 6772 | } |
| 6773 | } |
| 6774 | pci_using_dac = 0; |
| 6775 | } |
| 6776 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 6777 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6778 | IORESOURCE_MEM), ixgbe_driver_name); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6779 | if (err) { |
Dan Carpenter | b8bc042 | 2010-07-27 00:05:56 +0000 | [diff] [blame] | 6780 | dev_err(&pdev->dev, |
| 6781 | "pci_request_selected_regions failed 0x%x\n", err); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6782 | goto err_pci_reg; |
| 6783 | } |
| 6784 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 6785 | pci_enable_pcie_error_reporting(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 6786 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6787 | pci_set_master(pdev); |
Wendy Xiong | fb3b27b | 2008-04-23 11:09:24 -0700 | [diff] [blame] | 6788 | pci_save_state(pdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6789 | |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6790 | if (ii->mac == ixgbe_mac_82598EB) |
| 6791 | indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); |
| 6792 | else |
| 6793 | indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); |
| 6794 | |
| 6795 | indices = max_t(unsigned int, indices, IXGBE_MAX_DCB_INDICES); |
| 6796 | #ifdef IXGBE_FCOE |
| 6797 | indices += min_t(unsigned int, num_possible_cpus(), |
| 6798 | IXGBE_MAX_FCOE_INDICES); |
| 6799 | #endif |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6800 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6801 | if (!netdev) { |
| 6802 | err = -ENOMEM; |
| 6803 | goto err_alloc_etherdev; |
| 6804 | } |
| 6805 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6806 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 6807 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6808 | adapter = netdev_priv(netdev); |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 6809 | pci_set_drvdata(pdev, adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6810 | |
| 6811 | adapter->netdev = netdev; |
| 6812 | adapter->pdev = pdev; |
| 6813 | hw = &adapter->hw; |
| 6814 | hw->back = adapter; |
| 6815 | adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; |
| 6816 | |
Jeff Kirsher | 0585798 | 2008-09-11 19:57:00 -0700 | [diff] [blame] | 6817 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6818 | pci_resource_len(pdev, 0)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6819 | if (!hw->hw_addr) { |
| 6820 | err = -EIO; |
| 6821 | goto err_ioremap; |
| 6822 | } |
| 6823 | |
| 6824 | for (i = 1; i <= 5; i++) { |
| 6825 | if (pci_resource_len(pdev, i) == 0) |
| 6826 | continue; |
| 6827 | } |
| 6828 | |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6829 | netdev->netdev_ops = &ixgbe_netdev_ops; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6830 | ixgbe_set_ethtool_ops(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6831 | netdev->watchdog_timeo = 5 * HZ; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6832 | strcpy(netdev->name, pci_name(pdev)); |
| 6833 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6834 | adapter->bd_number = cards_found; |
| 6835 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6836 | /* Setup hw api */ |
| 6837 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 6838 | hw->mac.type = ii->mac; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6839 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6840 | /* EEPROM */ |
| 6841 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); |
| 6842 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); |
| 6843 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
| 6844 | if (!(eec & (1 << 8))) |
| 6845 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; |
| 6846 | |
| 6847 | /* PHY */ |
| 6848 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6849 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6850 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
| 6851 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; |
| 6852 | hw->phy.mdio.mmds = 0; |
| 6853 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; |
| 6854 | hw->phy.mdio.dev = netdev; |
| 6855 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; |
| 6856 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6857 | |
| 6858 | /* set up this timer and work struct before calling get_invariants |
| 6859 | * which might start the timer |
| 6860 | */ |
| 6861 | init_timer(&adapter->sfp_timer); |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 6862 | adapter->sfp_timer.function = ixgbe_sfp_timer; |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6863 | adapter->sfp_timer.data = (unsigned long) adapter; |
| 6864 | |
| 6865 | INIT_WORK(&adapter->sfp_task, ixgbe_sfp_task); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6866 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6867 | /* multispeed fiber has its own tasklet, called from GPI SDP1 context */ |
| 6868 | INIT_WORK(&adapter->multispeed_fiber_task, ixgbe_multispeed_fiber_task); |
| 6869 | |
| 6870 | /* a new SFP+ module arrival, called from GPI SDP2 context */ |
| 6871 | INIT_WORK(&adapter->sfp_config_module_task, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6872 | ixgbe_sfp_config_module_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6873 | |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 6874 | ii->get_invariants(hw); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6875 | |
| 6876 | /* setup the private structure */ |
| 6877 | err = ixgbe_sw_init(adapter); |
| 6878 | if (err) |
| 6879 | goto err_sw_init; |
| 6880 | |
Don Skidmore | e86bff0 | 2010-02-11 04:14:08 +0000 | [diff] [blame] | 6881 | /* Make it possible the adapter to be woken up via WOL */ |
| 6882 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 6883 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
| 6884 | |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 6885 | /* |
| 6886 | * If there is a fan on this device and it has failed log the |
| 6887 | * failure. |
| 6888 | */ |
| 6889 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { |
| 6890 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| 6891 | if (esdp & IXGBE_ESDP_SDP1) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6892 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 6893 | } |
| 6894 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6895 | /* reset_hw fills in the perm_addr as well */ |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 6896 | hw->phy.reset_if_overtemp = true; |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6897 | err = hw->mac.ops.reset_hw(hw); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 6898 | hw->phy.reset_if_overtemp = false; |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 6899 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
| 6900 | hw->mac.type == ixgbe_mac_82598EB) { |
| 6901 | /* |
| 6902 | * Start a kernel thread to watch for a module to arrive. |
| 6903 | * Only do this for 82598, since 82599 will generate |
| 6904 | * interrupts on module arrival. |
| 6905 | */ |
| 6906 | set_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 6907 | mod_timer(&adapter->sfp_timer, |
| 6908 | round_jiffies(jiffies + (2 * HZ))); |
| 6909 | err = 0; |
| 6910 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6911 | e_dev_err("failed to initialize because an unsupported SFP+ " |
| 6912 | "module type was detected.\n"); |
| 6913 | e_dev_err("Reload the driver after installing a supported " |
| 6914 | "module.\n"); |
PJ Waskiewicz | 04f165e | 2009-04-09 22:27:57 +0000 | [diff] [blame] | 6915 | goto err_sw_init; |
| 6916 | } else if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6917 | e_dev_err("HW Init failed: %d\n", err); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6918 | goto err_sw_init; |
| 6919 | } |
| 6920 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6921 | ixgbe_probe_vf(adapter, ii); |
| 6922 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6923 | netdev->features = NETIF_F_SG | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6924 | NETIF_F_IP_CSUM | |
| 6925 | NETIF_F_HW_VLAN_TX | |
| 6926 | NETIF_F_HW_VLAN_RX | |
| 6927 | NETIF_F_HW_VLAN_FILTER; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6928 | |
Jesse Brandeburg | e9990a9 | 2008-08-26 04:27:24 -0700 | [diff] [blame] | 6929 | netdev->features |= NETIF_F_IPV6_CSUM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6930 | netdev->features |= NETIF_F_TSO; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6931 | netdev->features |= NETIF_F_TSO6; |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 6932 | netdev->features |= NETIF_F_GRO; |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6933 | |
Jesse Brandeburg | 45a5ead | 2009-04-27 22:36:35 +0000 | [diff] [blame] | 6934 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 6935 | netdev->features |= NETIF_F_SCTP_CSUM; |
| 6936 | |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6937 | netdev->vlan_features |= NETIF_F_TSO; |
| 6938 | netdev->vlan_features |= NETIF_F_TSO6; |
Jesse Brandeburg | 22f32b7a5 | 2008-08-26 04:27:18 -0700 | [diff] [blame] | 6939 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
Alexander Duyck | cd1da50 | 2009-08-25 04:47:50 +0000 | [diff] [blame] | 6940 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6941 | netdev->vlan_features |= NETIF_F_SG; |
| 6942 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6943 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 6944 | adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED | |
| 6945 | IXGBE_FLAG_DCB_ENABLED); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6946 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) |
| 6947 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; |
| 6948 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 6949 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6950 | netdev->dcbnl_ops = &dcbnl_ops; |
| 6951 | #endif |
| 6952 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6953 | #ifdef IXGBE_FCOE |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 6954 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6955 | if (hw->mac.ops.get_device_caps) { |
| 6956 | hw->mac.ops.get_device_caps(hw, &device_caps); |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 6957 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
| 6958 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6959 | } |
| 6960 | } |
Yi Zou | 5e09d7f | 2010-07-19 13:59:52 +0000 | [diff] [blame] | 6961 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
| 6962 | netdev->vlan_features |= NETIF_F_FCOE_CRC; |
| 6963 | netdev->vlan_features |= NETIF_F_FSO; |
| 6964 | netdev->vlan_features |= NETIF_F_FCOE_MTU; |
| 6965 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6966 | #endif /* IXGBE_FCOE */ |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 6967 | if (pci_using_dac) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6968 | netdev->features |= NETIF_F_HIGHDMA; |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 6969 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
| 6970 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6971 | |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 6972 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 6973 | netdev->features |= NETIF_F_LRO; |
| 6974 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6975 | /* make sure the EEPROM is good */ |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6976 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6977 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6978 | err = -EIO; |
| 6979 | goto err_eeprom; |
| 6980 | } |
| 6981 | |
| 6982 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); |
| 6983 | memcpy(netdev->perm_addr, hw->mac.perm_addr, netdev->addr_len); |
| 6984 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6985 | if (ixgbe_validate_mac_addr(netdev->perm_addr)) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6986 | e_dev_err("invalid MAC address\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6987 | err = -EIO; |
| 6988 | goto err_eeprom; |
| 6989 | } |
| 6990 | |
Peter Waskiewicz | 61fac74 | 2010-04-27 00:38:15 +0000 | [diff] [blame] | 6991 | /* power down the optics */ |
| 6992 | if (hw->phy.multispeed_fiber) |
| 6993 | hw->mac.ops.disable_tx_laser(hw); |
| 6994 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6995 | init_timer(&adapter->watchdog_timer); |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 6996 | adapter->watchdog_timer.function = ixgbe_watchdog; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6997 | adapter->watchdog_timer.data = (unsigned long)adapter; |
| 6998 | |
| 6999 | INIT_WORK(&adapter->reset_task, ixgbe_reset_task); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 7000 | INIT_WORK(&adapter->watchdog_task, ixgbe_watchdog_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7001 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 7002 | err = ixgbe_init_interrupt_scheme(adapter); |
| 7003 | if (err) |
| 7004 | goto err_sw_init; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7005 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7006 | switch (pdev->device) { |
| 7007 | case IXGBE_DEV_ID_82599_KX4: |
Waskiewicz Jr, Peter P | 495dce1 | 2009-04-23 11:15:18 +0000 | [diff] [blame] | 7008 | adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7009 | IXGBE_WUFC_MC | IXGBE_WUFC_BC); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7010 | break; |
| 7011 | default: |
| 7012 | adapter->wol = 0; |
| 7013 | break; |
| 7014 | } |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7015 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
| 7016 | |
PJ Waskiewicz | 04f165e | 2009-04-09 22:27:57 +0000 | [diff] [blame] | 7017 | /* pick up the PCI bus settings for reporting later */ |
| 7018 | hw->mac.ops.get_bus_info(hw); |
| 7019 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7020 | /* print bus type/speed/width info */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7021 | e_dev_info("(PCI Express:%s:%s) %pM\n", |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7022 | (hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0Gb/s" : |
| 7023 | hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5Gb/s" : |
| 7024 | "Unknown"), |
| 7025 | (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" : |
| 7026 | hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" : |
| 7027 | hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" : |
| 7028 | "Unknown"), |
| 7029 | netdev->dev_addr); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 7030 | ixgbe_read_pba_num_generic(hw, &part_num); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7031 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7032 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, " |
| 7033 | "PBA No: %06x-%03x\n", |
| 7034 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, |
| 7035 | (part_num >> 8), (part_num & 0xff)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7036 | else |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7037 | e_dev_info("MAC: %d, PHY: %d, PBA No: %06x-%03x\n", |
| 7038 | hw->mac.type, hw->phy.type, |
| 7039 | (part_num >> 8), (part_num & 0xff)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7040 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7041 | if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7042 | e_dev_warn("PCI-Express bandwidth available for this card is " |
| 7043 | "not sufficient for optimal performance.\n"); |
| 7044 | e_dev_warn("For optimal performance a x8 PCI-Express slot " |
| 7045 | "is required.\n"); |
Auke Kok | 0c254d8 | 2008-02-11 09:25:56 -0800 | [diff] [blame] | 7046 | } |
| 7047 | |
Peter P Waskiewicz Jr | 34b0368 | 2009-02-05 23:54:42 -0800 | [diff] [blame] | 7048 | /* save off EEPROM version number */ |
| 7049 | hw->eeprom.ops.read(hw, 0x29, &adapter->eeprom_version); |
| 7050 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7051 | /* reset the hardware with the new settings */ |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 7052 | err = hw->mac.ops.start_hw(hw); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 7053 | |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 7054 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
| 7055 | /* We are running on a pre-production device, log a warning */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7056 | e_dev_warn("This device is a pre-production adapter/LOM. " |
| 7057 | "Please be aware there may be issues associated " |
| 7058 | "with your hardware. If you are experiencing " |
| 7059 | "problems please contact your Intel or hardware " |
| 7060 | "representative who provided you with this " |
| 7061 | "hardware.\n"); |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 7062 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7063 | strcpy(netdev->name, "eth%d"); |
| 7064 | err = register_netdev(netdev); |
| 7065 | if (err) |
| 7066 | goto err_register; |
| 7067 | |
Jesse Brandeburg | 5438646 | 2009-04-17 20:44:27 +0000 | [diff] [blame] | 7068 | /* carrier off reporting is important to ethtool even BEFORE open */ |
| 7069 | netif_carrier_off(netdev); |
| 7070 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 7071 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 7072 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 7073 | INIT_WORK(&adapter->fdir_reinit_task, ixgbe_fdir_reinit_task); |
| 7074 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 7075 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7076 | INIT_WORK(&adapter->check_overtemp_task, |
| 7077 | ixgbe_check_overtemp_task); |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7078 | #ifdef CONFIG_IXGBE_DCA |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 7079 | if (dca_add_requester(&pdev->dev) == 0) { |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7080 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7081 | ixgbe_setup_dca(adapter); |
| 7082 | } |
| 7083 | #endif |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7084 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7085 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7086 | for (i = 0; i < adapter->num_vfs; i++) |
| 7087 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); |
| 7088 | } |
| 7089 | |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 7090 | /* add san mac addr to netdev */ |
| 7091 | ixgbe_add_sanmac_netdev(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7092 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7093 | e_dev_info("Intel(R) 10 Gigabit Network Connection\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7094 | cards_found++; |
| 7095 | return 0; |
| 7096 | |
| 7097 | err_register: |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 7098 | ixgbe_release_hw_control(adapter); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 7099 | ixgbe_clear_interrupt_scheme(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7100 | err_sw_init: |
| 7101 | err_eeprom: |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7102 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 7103 | ixgbe_disable_sriov(adapter); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7104 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 7105 | del_timer_sync(&adapter->sfp_timer); |
| 7106 | cancel_work_sync(&adapter->sfp_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7107 | cancel_work_sync(&adapter->multispeed_fiber_task); |
| 7108 | cancel_work_sync(&adapter->sfp_config_module_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7109 | iounmap(hw->hw_addr); |
| 7110 | err_ioremap: |
| 7111 | free_netdev(netdev); |
| 7112 | err_alloc_etherdev: |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7113 | pci_release_selected_regions(pdev, |
| 7114 | pci_select_bars(pdev, IORESOURCE_MEM)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7115 | err_pci_reg: |
| 7116 | err_dma: |
| 7117 | pci_disable_device(pdev); |
| 7118 | return err; |
| 7119 | } |
| 7120 | |
| 7121 | /** |
| 7122 | * ixgbe_remove - Device Removal Routine |
| 7123 | * @pdev: PCI device information struct |
| 7124 | * |
| 7125 | * ixgbe_remove is called by the PCI subsystem to alert the driver |
| 7126 | * that it should release a PCI device. The could be caused by a |
| 7127 | * Hot-Plug event, or because the driver is going to be removed from |
| 7128 | * memory. |
| 7129 | **/ |
| 7130 | static void __devexit ixgbe_remove(struct pci_dev *pdev) |
| 7131 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 7132 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| 7133 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7134 | |
| 7135 | set_bit(__IXGBE_DOWN, &adapter->state); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7136 | /* clear the module not found bit to make sure the worker won't |
| 7137 | * reschedule |
| 7138 | */ |
| 7139 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7140 | del_timer_sync(&adapter->watchdog_timer); |
| 7141 | |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7142 | del_timer_sync(&adapter->sfp_timer); |
| 7143 | cancel_work_sync(&adapter->watchdog_task); |
| 7144 | cancel_work_sync(&adapter->sfp_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7145 | cancel_work_sync(&adapter->multispeed_fiber_task); |
| 7146 | cancel_work_sync(&adapter->sfp_config_module_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 7147 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 7148 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 7149 | cancel_work_sync(&adapter->fdir_reinit_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7150 | flush_scheduled_work(); |
| 7151 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7152 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7153 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
| 7154 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; |
| 7155 | dca_remove_requester(&pdev->dev); |
| 7156 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); |
| 7157 | } |
| 7158 | |
| 7159 | #endif |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 7160 | #ifdef IXGBE_FCOE |
| 7161 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
| 7162 | ixgbe_cleanup_fcoe(adapter); |
| 7163 | |
| 7164 | #endif /* IXGBE_FCOE */ |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 7165 | |
| 7166 | /* remove the added san mac */ |
| 7167 | ixgbe_del_sanmac_netdev(netdev); |
| 7168 | |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7169 | if (netdev->reg_state == NETREG_REGISTERED) |
| 7170 | unregister_netdev(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7171 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7172 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 7173 | ixgbe_disable_sriov(adapter); |
| 7174 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 7175 | ixgbe_clear_interrupt_scheme(adapter); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 7176 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 7177 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7178 | |
| 7179 | iounmap(adapter->hw.hw_addr); |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 7180 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7181 | IORESOURCE_MEM)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7182 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7183 | e_dev_info("complete\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 7184 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7185 | free_netdev(netdev); |
| 7186 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 7187 | pci_disable_pcie_error_reporting(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7188 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7189 | pci_disable_device(pdev); |
| 7190 | } |
| 7191 | |
| 7192 | /** |
| 7193 | * ixgbe_io_error_detected - called when PCI error is detected |
| 7194 | * @pdev: Pointer to PCI device |
| 7195 | * @state: The current pci connection state |
| 7196 | * |
| 7197 | * This function is called after a PCI bus error affecting |
| 7198 | * this device has been detected. |
| 7199 | */ |
| 7200 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7201 | pci_channel_state_t state) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7202 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 7203 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| 7204 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7205 | |
| 7206 | netif_device_detach(netdev); |
| 7207 | |
Breno Leitao | 3044b8d | 2009-05-06 10:44:26 +0000 | [diff] [blame] | 7208 | if (state == pci_channel_io_perm_failure) |
| 7209 | return PCI_ERS_RESULT_DISCONNECT; |
| 7210 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7211 | if (netif_running(netdev)) |
| 7212 | ixgbe_down(adapter); |
| 7213 | pci_disable_device(pdev); |
| 7214 | |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 7215 | /* Request a slot reset. */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7216 | return PCI_ERS_RESULT_NEED_RESET; |
| 7217 | } |
| 7218 | |
| 7219 | /** |
| 7220 | * ixgbe_io_slot_reset - called after the pci bus has been reset. |
| 7221 | * @pdev: Pointer to PCI device |
| 7222 | * |
| 7223 | * Restart the card from scratch, as if from a cold-boot. |
| 7224 | */ |
| 7225 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) |
| 7226 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 7227 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7228 | pci_ers_result_t result; |
| 7229 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7230 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 7231 | if (pci_enable_device_mem(pdev)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7232 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7233 | result = PCI_ERS_RESULT_DISCONNECT; |
| 7234 | } else { |
| 7235 | pci_set_master(pdev); |
| 7236 | pci_restore_state(pdev); |
Breno Leitao | c0e1f68 | 2009-11-10 08:37:47 +0000 | [diff] [blame] | 7237 | pci_save_state(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7238 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 7239 | pci_wake_from_d3(pdev, false); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7240 | |
| 7241 | ixgbe_reset(adapter); |
PJ Waskiewicz | 8851253 | 2009-03-13 22:15:10 +0000 | [diff] [blame] | 7242 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7243 | result = PCI_ERS_RESULT_RECOVERED; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7244 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7245 | |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7246 | err = pci_cleanup_aer_uncorrect_error_status(pdev); |
| 7247 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7248 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
| 7249 | "failed 0x%0x\n", err); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7250 | /* non-fatal, continue */ |
| 7251 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7252 | |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7253 | return result; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7254 | } |
| 7255 | |
| 7256 | /** |
| 7257 | * ixgbe_io_resume - called when traffic can start flowing again. |
| 7258 | * @pdev: Pointer to PCI device |
| 7259 | * |
| 7260 | * This callback is called when the error recovery driver tells us that |
| 7261 | * its OK to resume normal operation. |
| 7262 | */ |
| 7263 | static void ixgbe_io_resume(struct pci_dev *pdev) |
| 7264 | { |
Alexander Duyck | c60fbb0 | 2010-11-16 19:26:54 -0800 | [diff] [blame] | 7265 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| 7266 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7267 | |
| 7268 | if (netif_running(netdev)) { |
| 7269 | if (ixgbe_up(adapter)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7270 | e_info(probe, "ixgbe_up failed after reset\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7271 | return; |
| 7272 | } |
| 7273 | } |
| 7274 | |
| 7275 | netif_device_attach(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7276 | } |
| 7277 | |
| 7278 | static struct pci_error_handlers ixgbe_err_handler = { |
| 7279 | .error_detected = ixgbe_io_error_detected, |
| 7280 | .slot_reset = ixgbe_io_slot_reset, |
| 7281 | .resume = ixgbe_io_resume, |
| 7282 | }; |
| 7283 | |
| 7284 | static struct pci_driver ixgbe_driver = { |
| 7285 | .name = ixgbe_driver_name, |
| 7286 | .id_table = ixgbe_pci_tbl, |
| 7287 | .probe = ixgbe_probe, |
| 7288 | .remove = __devexit_p(ixgbe_remove), |
| 7289 | #ifdef CONFIG_PM |
| 7290 | .suspend = ixgbe_suspend, |
| 7291 | .resume = ixgbe_resume, |
| 7292 | #endif |
| 7293 | .shutdown = ixgbe_shutdown, |
| 7294 | .err_handler = &ixgbe_err_handler |
| 7295 | }; |
| 7296 | |
| 7297 | /** |
| 7298 | * ixgbe_init_module - Driver Registration Routine |
| 7299 | * |
| 7300 | * ixgbe_init_module is the first routine called when the driver is |
| 7301 | * loaded. All it does is register with the PCI subsystem. |
| 7302 | **/ |
| 7303 | static int __init ixgbe_init_module(void) |
| 7304 | { |
| 7305 | int ret; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 7306 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7307 | pr_info("%s\n", ixgbe_copyright); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7308 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7309 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7310 | dca_register_notify(&dca_notifier); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7311 | #endif |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7312 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7313 | ret = pci_register_driver(&ixgbe_driver); |
| 7314 | return ret; |
| 7315 | } |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 7316 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7317 | module_init(ixgbe_init_module); |
| 7318 | |
| 7319 | /** |
| 7320 | * ixgbe_exit_module - Driver Exit Cleanup Routine |
| 7321 | * |
| 7322 | * ixgbe_exit_module is called just before the driver is removed |
| 7323 | * from memory. |
| 7324 | **/ |
| 7325 | static void __exit ixgbe_exit_module(void) |
| 7326 | { |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7327 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7328 | dca_unregister_notify(&dca_notifier); |
| 7329 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7330 | pci_unregister_driver(&ixgbe_driver); |
Eric Dumazet | 1a51502 | 2010-11-16 19:26:42 -0800 | [diff] [blame] | 7331 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7332 | } |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7333 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7334 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7335 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7336 | void *p) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7337 | { |
| 7338 | int ret_val; |
| 7339 | |
| 7340 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7341 | __ixgbe_notify_dca); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7342 | |
| 7343 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; |
| 7344 | } |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7345 | |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7346 | #endif /* CONFIG_IXGBE_DCA */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7347 | |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7348 | /** |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7349 | * ixgbe_get_hw_dev return device |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7350 | * used by hardware layer to print debugging information |
| 7351 | **/ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7352 | struct net_device *ixgbe_get_hw_dev(struct ixgbe_hw *hw) |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7353 | { |
| 7354 | struct ixgbe_adapter *adapter = hw->back; |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7355 | return adapter->netdev; |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7356 | } |
| 7357 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7358 | module_exit(ixgbe_exit_module); |
| 7359 | |
| 7360 | /* ixgbe_main.c */ |