Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1 | /* bnx2x_cmn.h: Broadcom Everest network driver. |
| 2 | * |
| 3 | * Copyright (c) 2007-2010 Broadcom Corporation |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation. |
| 8 | * |
| 9 | * Maintained by: Eilon Greenstein <eilong@broadcom.com> |
| 10 | * Written by: Eliezer Tamir |
| 11 | * Based on code from Michael Chan's bnx2 driver |
| 12 | * UDP CSUM errata workaround by Arik Gendelman |
| 13 | * Slowpath and fastpath rework by Vladislav Zolotarov |
| 14 | * Statistics and Link management by Yitchak Gertner |
| 15 | * |
| 16 | */ |
| 17 | #ifndef BNX2X_CMN_H |
| 18 | #define BNX2X_CMN_H |
| 19 | |
| 20 | #include <linux/types.h> |
| 21 | #include <linux/netdevice.h> |
| 22 | |
| 23 | |
| 24 | #include "bnx2x.h" |
| 25 | |
| 26 | |
| 27 | /*********************** Interfaces **************************** |
| 28 | * Functions that need to be implemented by each driver version |
| 29 | */ |
| 30 | |
| 31 | /** |
| 32 | * Initialize link parameters structure variables. |
| 33 | * |
| 34 | * @param bp |
| 35 | * @param load_mode |
| 36 | * |
| 37 | * @return u8 |
| 38 | */ |
| 39 | u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode); |
| 40 | |
| 41 | /** |
| 42 | * Configure hw according to link parameters structure. |
| 43 | * |
| 44 | * @param bp |
| 45 | */ |
| 46 | void bnx2x_link_set(struct bnx2x *bp); |
| 47 | |
| 48 | /** |
| 49 | * Query link status |
| 50 | * |
| 51 | * @param bp |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 52 | * @param is_serdes |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 53 | * |
| 54 | * @return 0 - link is UP |
| 55 | */ |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 56 | u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 57 | |
| 58 | /** |
| 59 | * Handles link status change |
| 60 | * |
| 61 | * @param bp |
| 62 | */ |
| 63 | void bnx2x__link_status_update(struct bnx2x *bp); |
| 64 | |
| 65 | /** |
| 66 | * MSI-X slowpath interrupt handler |
| 67 | * |
| 68 | * @param irq |
| 69 | * @param dev_instance |
| 70 | * |
| 71 | * @return irqreturn_t |
| 72 | */ |
| 73 | irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance); |
| 74 | |
| 75 | /** |
| 76 | * non MSI-X interrupt handler |
| 77 | * |
| 78 | * @param irq |
| 79 | * @param dev_instance |
| 80 | * |
| 81 | * @return irqreturn_t |
| 82 | */ |
| 83 | irqreturn_t bnx2x_interrupt(int irq, void *dev_instance); |
| 84 | #ifdef BCM_CNIC |
| 85 | |
| 86 | /** |
| 87 | * Send command to cnic driver |
| 88 | * |
| 89 | * @param bp |
| 90 | * @param cmd |
| 91 | */ |
| 92 | int bnx2x_cnic_notify(struct bnx2x *bp, int cmd); |
| 93 | |
| 94 | /** |
| 95 | * Provides cnic information for proper interrupt handling |
| 96 | * |
| 97 | * @param bp |
| 98 | */ |
| 99 | void bnx2x_setup_cnic_irq_info(struct bnx2x *bp); |
| 100 | #endif |
| 101 | |
| 102 | /** |
| 103 | * Enable HW interrupts. |
| 104 | * |
| 105 | * @param bp |
| 106 | */ |
| 107 | void bnx2x_int_enable(struct bnx2x *bp); |
| 108 | |
| 109 | /** |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 110 | * Disable HW interrupts. |
| 111 | * |
| 112 | * @param bp |
| 113 | */ |
| 114 | void bnx2x_int_disable(struct bnx2x *bp); |
| 115 | |
| 116 | /** |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 117 | * Disable interrupts. This function ensures that there are no |
| 118 | * ISRs or SP DPCs (sp_task) are running after it returns. |
| 119 | * |
| 120 | * @param bp |
| 121 | * @param disable_hw if true, disable HW interrupts. |
| 122 | */ |
| 123 | void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw); |
| 124 | |
| 125 | /** |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 126 | * Loads device firmware |
| 127 | * |
| 128 | * @param bp |
| 129 | * |
| 130 | * @return int |
| 131 | */ |
| 132 | int bnx2x_init_firmware(struct bnx2x *bp); |
| 133 | |
| 134 | /** |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 135 | * Init HW blocks according to current initialization stage: |
| 136 | * COMMON, PORT or FUNCTION. |
| 137 | * |
| 138 | * @param bp |
| 139 | * @param load_code: COMMON, PORT or FUNCTION |
| 140 | * |
| 141 | * @return int |
| 142 | */ |
| 143 | int bnx2x_init_hw(struct bnx2x *bp, u32 load_code); |
| 144 | |
| 145 | /** |
| 146 | * Init driver internals: |
| 147 | * - rings |
| 148 | * - status blocks |
| 149 | * - etc. |
| 150 | * |
| 151 | * @param bp |
| 152 | * @param load_code COMMON, PORT or FUNCTION |
| 153 | */ |
| 154 | void bnx2x_nic_init(struct bnx2x *bp, u32 load_code); |
| 155 | |
| 156 | /** |
| 157 | * Allocate driver's memory. |
| 158 | * |
| 159 | * @param bp |
| 160 | * |
| 161 | * @return int |
| 162 | */ |
| 163 | int bnx2x_alloc_mem(struct bnx2x *bp); |
| 164 | |
| 165 | /** |
| 166 | * Release driver's memory. |
| 167 | * |
| 168 | * @param bp |
| 169 | */ |
| 170 | void bnx2x_free_mem(struct bnx2x *bp); |
| 171 | |
| 172 | /** |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 173 | * Setup eth Client. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 174 | * |
| 175 | * @param bp |
| 176 | * @param fp |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 177 | * @param is_leading |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 178 | * |
| 179 | * @return int |
| 180 | */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 181 | int bnx2x_setup_client(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 182 | int is_leading); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 183 | |
| 184 | /** |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 185 | * Bring down an eth client. |
| 186 | * |
| 187 | * @param bp |
| 188 | * @param p |
| 189 | * |
| 190 | * @return int |
| 191 | */ |
| 192 | int bnx2x_stop_fw_client(struct bnx2x *bp, |
| 193 | struct bnx2x_client_ramrod_params *p); |
| 194 | |
| 195 | /** |
| 196 | * Set number of quueus according to mode |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 197 | * |
| 198 | * @param bp |
| 199 | * |
| 200 | */ |
| 201 | void bnx2x_set_num_queues_msix(struct bnx2x *bp); |
| 202 | |
| 203 | /** |
| 204 | * Cleanup chip internals: |
| 205 | * - Cleanup MAC configuration. |
| 206 | * - Close clients. |
| 207 | * - etc. |
| 208 | * |
| 209 | * @param bp |
| 210 | * @param unload_mode |
| 211 | */ |
| 212 | void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode); |
| 213 | |
| 214 | /** |
| 215 | * Acquire HW lock. |
| 216 | * |
| 217 | * @param bp |
| 218 | * @param resource Resource bit which was locked |
| 219 | * |
| 220 | * @return int |
| 221 | */ |
| 222 | int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource); |
| 223 | |
| 224 | /** |
| 225 | * Release HW lock. |
| 226 | * |
| 227 | * @param bp driver handle |
| 228 | * @param resource Resource bit which was locked |
| 229 | * |
| 230 | * @return int |
| 231 | */ |
| 232 | int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource); |
| 233 | |
| 234 | /** |
| 235 | * Configure eth MAC address in the HW according to the value in |
| 236 | * netdev->dev_addr for 57711 |
| 237 | * |
| 238 | * @param bp driver handle |
| 239 | * @param set |
| 240 | */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 241 | void bnx2x_set_eth_mac(struct bnx2x *bp, int set); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 242 | |
| 243 | #ifdef BCM_CNIC |
| 244 | /** |
| 245 | * Set iSCSI MAC(s) at the next enties in the CAM after the ETH |
| 246 | * MAC(s). The function will wait until the ramrod completion |
| 247 | * returns. |
| 248 | * |
| 249 | * @param bp driver handle |
| 250 | * @param set set or clear the CAM entry |
| 251 | * |
| 252 | * @return 0 if cussess, -ENODEV if ramrod doesn't return. |
| 253 | */ |
| 254 | int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp, int set); |
| 255 | #endif |
| 256 | |
| 257 | /** |
| 258 | * Initialize status block in FW and HW |
| 259 | * |
| 260 | * @param bp driver handle |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 261 | * @param dma_addr_t mapping |
| 262 | * @param int sb_id |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 263 | * @param int vfid |
| 264 | * @param u8 vf_valid |
| 265 | * @param int fw_sb_id |
| 266 | * @param int igu_sb_id |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 267 | */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 268 | void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid, |
| 269 | u8 vf_valid, int fw_sb_id, int igu_sb_id); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 270 | |
| 271 | /** |
| 272 | * Reconfigure FW/HW according to dev->flags rx mode |
| 273 | * |
| 274 | * @param dev net_device |
| 275 | * |
| 276 | */ |
| 277 | void bnx2x_set_rx_mode(struct net_device *dev); |
| 278 | |
| 279 | /** |
| 280 | * Configure MAC filtering rules in a FW. |
| 281 | * |
| 282 | * @param bp driver handle |
| 283 | */ |
| 284 | void bnx2x_set_storm_rx_mode(struct bnx2x *bp); |
| 285 | |
| 286 | /* Parity errors related */ |
| 287 | void bnx2x_inc_load_cnt(struct bnx2x *bp); |
| 288 | u32 bnx2x_dec_load_cnt(struct bnx2x *bp); |
| 289 | bool bnx2x_chk_parity_attn(struct bnx2x *bp); |
| 290 | bool bnx2x_reset_is_done(struct bnx2x *bp); |
| 291 | void bnx2x_disable_close_the_gate(struct bnx2x *bp); |
| 292 | |
| 293 | /** |
| 294 | * Perform statistics handling according to event |
| 295 | * |
| 296 | * @param bp driver handle |
| 297 | * @param even tbnx2x_stats_event |
| 298 | */ |
| 299 | void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event); |
| 300 | |
| 301 | /** |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 302 | * Handle sp events |
| 303 | * |
| 304 | * @param fp fastpath handle for the event |
| 305 | * @param rr_cqe eth_rx_cqe |
| 306 | */ |
| 307 | void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe); |
| 308 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 309 | /** |
| 310 | * Init/halt function before/after sending |
| 311 | * CLIENT_SETUP/CFC_DEL for the first/last client. |
| 312 | * |
| 313 | * @param bp |
| 314 | * |
| 315 | * @return int |
| 316 | */ |
| 317 | int bnx2x_func_start(struct bnx2x *bp); |
| 318 | int bnx2x_func_stop(struct bnx2x *bp); |
| 319 | |
| 320 | /** |
| 321 | * Prepare ILT configurations according to current driver |
| 322 | * parameters. |
| 323 | * |
| 324 | * @param bp |
| 325 | */ |
| 326 | void bnx2x_ilt_set_info(struct bnx2x *bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 327 | |
| 328 | static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp) |
| 329 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 330 | barrier(); /* status block is written to by the chip */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 331 | fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | static inline void bnx2x_update_rx_prod(struct bnx2x *bp, |
| 335 | struct bnx2x_fastpath *fp, |
| 336 | u16 bd_prod, u16 rx_comp_prod, |
| 337 | u16 rx_sge_prod) |
| 338 | { |
| 339 | struct ustorm_eth_rx_producers rx_prods = {0}; |
| 340 | int i; |
| 341 | |
| 342 | /* Update producers */ |
| 343 | rx_prods.bd_prod = bd_prod; |
| 344 | rx_prods.cqe_prod = rx_comp_prod; |
| 345 | rx_prods.sge_prod = rx_sge_prod; |
| 346 | |
| 347 | /* |
| 348 | * Make sure that the BD and SGE data is updated before updating the |
| 349 | * producers since FW might read the BD/SGE right after the producer |
| 350 | * is updated. |
| 351 | * This is only applicable for weak-ordered memory model archs such |
| 352 | * as IA-64. The following barrier is also mandatory since FW will |
| 353 | * assumes BDs must have buffers. |
| 354 | */ |
| 355 | wmb(); |
| 356 | |
| 357 | for (i = 0; i < sizeof(struct ustorm_eth_rx_producers)/4; i++) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 358 | REG_WR(bp, |
| 359 | BAR_USTRORM_INTMEM + fp->ustorm_rx_prods_offset + i*4, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 360 | ((u32 *)&rx_prods)[i]); |
| 361 | |
| 362 | mmiowb(); /* keep prod updates ordered */ |
| 363 | |
| 364 | DP(NETIF_MSG_RX_STATUS, |
| 365 | "queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n", |
| 366 | fp->index, bd_prod, rx_comp_prod, rx_sge_prod); |
| 367 | } |
| 368 | |
| 369 | |
| 370 | |
| 371 | static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 sb_id, |
| 372 | u8 storm, u16 index, u8 op, u8 update) |
| 373 | { |
| 374 | u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + |
| 375 | COMMAND_REG_INT_ACK); |
| 376 | struct igu_ack_register igu_ack; |
| 377 | |
| 378 | igu_ack.status_block_index = index; |
| 379 | igu_ack.sb_id_and_flags = |
| 380 | ((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) | |
| 381 | (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) | |
| 382 | (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) | |
| 383 | (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT)); |
| 384 | |
| 385 | DP(BNX2X_MSG_OFF, "write 0x%08x to HC addr 0x%x\n", |
| 386 | (*(u32 *)&igu_ack), hc_addr); |
| 387 | REG_WR(bp, hc_addr, (*(u32 *)&igu_ack)); |
| 388 | |
| 389 | /* Make sure that ACK is written */ |
| 390 | mmiowb(); |
| 391 | barrier(); |
| 392 | } |
| 393 | static inline u16 bnx2x_ack_int(struct bnx2x *bp) |
| 394 | { |
| 395 | u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + |
| 396 | COMMAND_REG_SIMD_MASK); |
| 397 | u32 result = REG_RD(bp, hc_addr); |
| 398 | |
| 399 | DP(BNX2X_MSG_OFF, "read 0x%08x from HC addr 0x%x\n", |
| 400 | result, hc_addr); |
| 401 | |
| 402 | return result; |
| 403 | } |
| 404 | |
| 405 | /* |
| 406 | * fast path service functions |
| 407 | */ |
| 408 | |
| 409 | static inline int bnx2x_has_tx_work_unload(struct bnx2x_fastpath *fp) |
| 410 | { |
| 411 | /* Tell compiler that consumer and producer can change */ |
| 412 | barrier(); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 413 | return fp->tx_pkt_prod != fp->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 414 | } |
| 415 | |
| 416 | static inline u16 bnx2x_tx_avail(struct bnx2x_fastpath *fp) |
| 417 | { |
| 418 | s16 used; |
| 419 | u16 prod; |
| 420 | u16 cons; |
| 421 | |
| 422 | prod = fp->tx_bd_prod; |
| 423 | cons = fp->tx_bd_cons; |
| 424 | |
| 425 | /* NUM_TX_RINGS = number of "next-page" entries |
| 426 | It will be used as a threshold */ |
| 427 | used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS; |
| 428 | |
| 429 | #ifdef BNX2X_STOP_ON_ERROR |
| 430 | WARN_ON(used < 0); |
| 431 | WARN_ON(used > fp->bp->tx_ring_size); |
| 432 | WARN_ON((fp->bp->tx_ring_size - used) > MAX_TX_AVAIL); |
| 433 | #endif |
| 434 | |
| 435 | return (s16)(fp->bp->tx_ring_size) - used; |
| 436 | } |
| 437 | |
| 438 | static inline int bnx2x_has_tx_work(struct bnx2x_fastpath *fp) |
| 439 | { |
| 440 | u16 hw_cons; |
| 441 | |
| 442 | /* Tell compiler that status block fields can change */ |
| 443 | barrier(); |
| 444 | hw_cons = le16_to_cpu(*fp->tx_cons_sb); |
| 445 | return hw_cons != fp->tx_pkt_cons; |
| 446 | } |
| 447 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 448 | static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp) |
| 449 | { |
| 450 | u16 rx_cons_sb; |
| 451 | |
| 452 | /* Tell compiler that status block fields can change */ |
| 453 | barrier(); |
| 454 | rx_cons_sb = le16_to_cpu(*fp->rx_cons_sb); |
| 455 | if ((rx_cons_sb & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT) |
| 456 | rx_cons_sb++; |
| 457 | return (fp->rx_comp_cons != rx_cons_sb); |
| 458 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 459 | static inline void bnx2x_free_rx_sge(struct bnx2x *bp, |
| 460 | struct bnx2x_fastpath *fp, u16 index) |
| 461 | { |
| 462 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 463 | struct page *page = sw_buf->page; |
| 464 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 465 | |
| 466 | /* Skip "next page" elements */ |
| 467 | if (!page) |
| 468 | return; |
| 469 | |
| 470 | dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping), |
| 471 | SGE_PAGE_SIZE*PAGES_PER_SGE, PCI_DMA_FROMDEVICE); |
| 472 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 473 | |
| 474 | sw_buf->page = NULL; |
| 475 | sge->addr_hi = 0; |
| 476 | sge->addr_lo = 0; |
| 477 | } |
| 478 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 479 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 480 | |
| 481 | |
| 482 | |
| 483 | static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp) |
| 484 | { |
| 485 | int i, j; |
| 486 | |
| 487 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 488 | int idx = RX_SGE_CNT * i - 1; |
| 489 | |
| 490 | for (j = 0; j < 2; j++) { |
| 491 | SGE_MASK_CLEAR_BIT(fp, idx); |
| 492 | idx--; |
| 493 | } |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp) |
| 498 | { |
| 499 | /* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */ |
| 500 | memset(fp->sge_mask, 0xff, |
| 501 | (NUM_RX_SGE >> RX_SGE_MASK_ELEM_SHIFT)*sizeof(u64)); |
| 502 | |
| 503 | /* Clear the two last indices in the page to 1: |
| 504 | these are the indices that correspond to the "next" element, |
| 505 | hence will never be indicated and should be removed from |
| 506 | the calculations. */ |
| 507 | bnx2x_clear_sge_mask_next_elems(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | static inline int bnx2x_alloc_rx_sge(struct bnx2x *bp, |
| 511 | struct bnx2x_fastpath *fp, u16 index) |
| 512 | { |
| 513 | struct page *page = alloc_pages(GFP_ATOMIC, PAGES_PER_SGE_SHIFT); |
| 514 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 515 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 516 | dma_addr_t mapping; |
| 517 | |
| 518 | if (unlikely(page == NULL)) |
| 519 | return -ENOMEM; |
| 520 | |
| 521 | mapping = dma_map_page(&bp->pdev->dev, page, 0, |
| 522 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
| 523 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 524 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 525 | return -ENOMEM; |
| 526 | } |
| 527 | |
| 528 | sw_buf->page = page; |
| 529 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 530 | |
| 531 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 532 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 533 | |
| 534 | return 0; |
| 535 | } |
| 536 | static inline int bnx2x_alloc_rx_skb(struct bnx2x *bp, |
| 537 | struct bnx2x_fastpath *fp, u16 index) |
| 538 | { |
| 539 | struct sk_buff *skb; |
| 540 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 541 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 542 | dma_addr_t mapping; |
| 543 | |
| 544 | skb = netdev_alloc_skb(bp->dev, bp->rx_buf_size); |
| 545 | if (unlikely(skb == NULL)) |
| 546 | return -ENOMEM; |
| 547 | |
| 548 | mapping = dma_map_single(&bp->pdev->dev, skb->data, bp->rx_buf_size, |
| 549 | DMA_FROM_DEVICE); |
| 550 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 551 | dev_kfree_skb(skb); |
| 552 | return -ENOMEM; |
| 553 | } |
| 554 | |
| 555 | rx_buf->skb = skb; |
| 556 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 557 | |
| 558 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 559 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 560 | |
| 561 | return 0; |
| 562 | } |
| 563 | |
| 564 | /* note that we are not allocating a new skb, |
| 565 | * we are just moving one from cons to prod |
| 566 | * we are not creating a new mapping, |
| 567 | * so there is no need to check for dma_mapping_error(). |
| 568 | */ |
| 569 | static inline void bnx2x_reuse_rx_skb(struct bnx2x_fastpath *fp, |
| 570 | struct sk_buff *skb, u16 cons, u16 prod) |
| 571 | { |
| 572 | struct bnx2x *bp = fp->bp; |
| 573 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 574 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 575 | struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons]; |
| 576 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 577 | |
| 578 | dma_sync_single_for_device(&bp->pdev->dev, |
| 579 | dma_unmap_addr(cons_rx_buf, mapping), |
| 580 | RX_COPY_THRESH, DMA_FROM_DEVICE); |
| 581 | |
| 582 | prod_rx_buf->skb = cons_rx_buf->skb; |
| 583 | dma_unmap_addr_set(prod_rx_buf, mapping, |
| 584 | dma_unmap_addr(cons_rx_buf, mapping)); |
| 585 | *prod_bd = *cons_bd; |
| 586 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 587 | static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, |
| 588 | struct bnx2x_fastpath *fp, int last) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 589 | { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 590 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 591 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 592 | for (i = 0; i < last; i++) |
| 593 | bnx2x_free_rx_sge(bp, fp, i); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 594 | } |
| 595 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 596 | static inline void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 597 | struct bnx2x_fastpath *fp, int last) |
| 598 | { |
| 599 | int i; |
| 600 | |
| 601 | for (i = 0; i < last; i++) { |
| 602 | struct sw_rx_bd *rx_buf = &(fp->tpa_pool[i]); |
| 603 | struct sk_buff *skb = rx_buf->skb; |
| 604 | |
| 605 | if (skb == NULL) { |
| 606 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 607 | continue; |
| 608 | } |
| 609 | |
| 610 | if (fp->tpa_state[i] == BNX2X_TPA_START) |
| 611 | dma_unmap_single(&bp->pdev->dev, |
| 612 | dma_unmap_addr(rx_buf, mapping), |
| 613 | bp->rx_buf_size, DMA_FROM_DEVICE); |
| 614 | |
| 615 | dev_kfree_skb(skb); |
| 616 | rx_buf->skb = NULL; |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 621 | static inline void bnx2x_init_tx_rings(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 622 | { |
| 623 | int i, j; |
| 624 | |
| 625 | for_each_queue(bp, j) { |
| 626 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 627 | |
| 628 | for (i = 1; i <= NUM_TX_RINGS; i++) { |
| 629 | struct eth_tx_next_bd *tx_next_bd = |
| 630 | &fp->tx_desc_ring[TX_DESC_CNT * i - 1].next_bd; |
| 631 | |
| 632 | tx_next_bd->addr_hi = |
| 633 | cpu_to_le32(U64_HI(fp->tx_desc_mapping + |
| 634 | BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); |
| 635 | tx_next_bd->addr_lo = |
| 636 | cpu_to_le32(U64_LO(fp->tx_desc_mapping + |
| 637 | BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); |
| 638 | } |
| 639 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 640 | SET_FLAG(fp->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 641 | fp->tx_db.data.zero_fill1 = 0; |
| 642 | fp->tx_db.data.prod = 0; |
| 643 | |
| 644 | fp->tx_pkt_prod = 0; |
| 645 | fp->tx_pkt_cons = 0; |
| 646 | fp->tx_bd_prod = 0; |
| 647 | fp->tx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 648 | fp->tx_pkt = 0; |
| 649 | } |
| 650 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 651 | static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 652 | { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 653 | int i; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 654 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 655 | for (i = 1; i <= NUM_RX_RINGS; i++) { |
| 656 | struct eth_rx_bd *rx_bd; |
| 657 | |
| 658 | rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2]; |
| 659 | rx_bd->addr_hi = |
| 660 | cpu_to_le32(U64_HI(fp->rx_desc_mapping + |
| 661 | BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); |
| 662 | rx_bd->addr_lo = |
| 663 | cpu_to_le32(U64_LO(fp->rx_desc_mapping + |
| 664 | BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); |
| 665 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 666 | } |
| 667 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 668 | static inline void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 669 | { |
| 670 | int i; |
| 671 | |
| 672 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 673 | struct eth_rx_sge *sge; |
| 674 | |
| 675 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 676 | sge->addr_hi = |
| 677 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 678 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 679 | |
| 680 | sge->addr_lo = |
| 681 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 682 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | static inline void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 687 | { |
| 688 | int i; |
| 689 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 690 | struct eth_rx_cqe_next_page *nextpg; |
| 691 | |
| 692 | nextpg = (struct eth_rx_cqe_next_page *) |
| 693 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 694 | nextpg->addr_hi = |
| 695 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 696 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 697 | nextpg->addr_lo = |
| 698 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 699 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | |
| 704 | |
| 705 | static inline void __storm_memset_struct(struct bnx2x *bp, |
| 706 | u32 addr, size_t size, u32 *data) |
| 707 | { |
| 708 | int i; |
| 709 | for (i = 0; i < size/4; i++) |
| 710 | REG_WR(bp, addr + (i * 4), data[i]); |
| 711 | } |
| 712 | |
| 713 | static inline void storm_memset_mac_filters(struct bnx2x *bp, |
| 714 | struct tstorm_eth_mac_filter_config *mac_filters, |
| 715 | u16 abs_fid) |
| 716 | { |
| 717 | size_t size = sizeof(struct tstorm_eth_mac_filter_config); |
| 718 | |
| 719 | u32 addr = BAR_TSTRORM_INTMEM + |
| 720 | TSTORM_MAC_FILTER_CONFIG_OFFSET(abs_fid); |
| 721 | |
| 722 | __storm_memset_struct(bp, addr, size, (u32 *)mac_filters); |
| 723 | } |
| 724 | |
| 725 | static inline void storm_memset_cmng(struct bnx2x *bp, |
| 726 | struct cmng_struct_per_port *cmng, |
| 727 | u8 port) |
| 728 | { |
| 729 | size_t size = sizeof(struct cmng_struct_per_port); |
| 730 | |
| 731 | u32 addr = BAR_XSTRORM_INTMEM + |
| 732 | XSTORM_CMNG_PER_PORT_VARS_OFFSET(port); |
| 733 | |
| 734 | __storm_memset_struct(bp, addr, size, (u32 *)cmng); |
| 735 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 736 | /* HW Lock for shared dual port PHYs */ |
| 737 | void bnx2x_acquire_phy_lock(struct bnx2x *bp); |
| 738 | void bnx2x_release_phy_lock(struct bnx2x *bp); |
| 739 | |
| 740 | void bnx2x_link_report(struct bnx2x *bp); |
| 741 | int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget); |
| 742 | int bnx2x_tx_int(struct bnx2x_fastpath *fp); |
| 743 | void bnx2x_init_rx_rings(struct bnx2x *bp); |
| 744 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| 745 | |
| 746 | int bnx2x_change_mac_addr(struct net_device *dev, void *p); |
| 747 | void bnx2x_tx_timeout(struct net_device *dev); |
| 748 | void bnx2x_vlan_rx_register(struct net_device *dev, struct vlan_group *vlgrp); |
| 749 | void bnx2x_netif_start(struct bnx2x *bp); |
| 750 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw); |
| 751 | void bnx2x_free_irq(struct bnx2x *bp, bool disable_only); |
| 752 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state); |
| 753 | int bnx2x_resume(struct pci_dev *pdev); |
| 754 | void bnx2x_free_skbs(struct bnx2x *bp); |
| 755 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu); |
| 756 | int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode); |
| 757 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode); |
| 758 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state); |
| 759 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame^] | 760 | /** |
| 761 | * Allocate/release memories outsize main driver structure |
| 762 | * |
| 763 | * @param bp |
| 764 | * |
| 765 | * @return int |
| 766 | */ |
| 767 | int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp); |
| 768 | void bnx2x_free_mem_bp(struct bnx2x *bp); |
| 769 | |
| 770 | #define BNX2X_FW_IP_HDR_ALIGN_PAD 2 /* FW places hdr with this padding */ |
| 771 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 772 | #endif /* BNX2X_CMN_H */ |