Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
new file mode 100644
index 0000000..05b827f
--- /dev/null
+++ b/drivers/net/sk98lin/skge.c
@@ -0,0 +1,5186 @@
+/******************************************************************************
+ *
+ * Name: skge.c
+ * Project: GEnesis, PCI Gigabit Ethernet Adapter
+ * Version: $Revision: 1.45 $
+ * Date: $Date: 2004/02/12 14:41:02 $
+ * Purpose: The main driver source module
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (C)Copyright 1998-2002 SysKonnect GmbH.
+ * (C)Copyright 2002-2003 Marvell.
+ *
+ * Driver for Marvell Yukon chipset and SysKonnect Gigabit Ethernet
+ * Server Adapters.
+ *
+ * Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
+ * SysKonnects GEnesis Solaris driver
+ * Author: Christoph Goos (cgoos@syskonnect.de)
+ * Mirko Lindner (mlindner@syskonnect.de)
+ *
+ * Address all question to: linux@syskonnect.de
+ *
+ * The technical manual for the adapters is available from SysKonnect's
+ * web pages: www.syskonnect.com
+ * Goto "Support" and search Knowledge Base for "manual".
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Possible compiler options (#define xxx / -Dxxx):
+ *
+ * debugging can be enable by changing SK_DEBUG_CHKMOD and
+ * SK_DEBUG_CHKCAT in makefile (described there).
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * Description:
+ *
+ * This is the main module of the Linux GE driver.
+ *
+ * All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h
+ * are part of SysKonnect's COMMON MODULES for the SK-98xx adapters.
+ * Those are used for drivers on multiple OS', so some thing may seem
+ * unnecessary complicated on Linux. Please do not try to 'clean up'
+ * them without VERY good reasons, because this will make it more
+ * difficult to keep the Linux driver in synchronisation with the
+ * other versions.
+ *
+ * Include file hierarchy:
+ *
+ * <linux/module.h>
+ *
+ * "h/skdrv1st.h"
+ * <linux/types.h>
+ * <linux/kernel.h>
+ * <linux/string.h>
+ * <linux/errno.h>
+ * <linux/ioport.h>
+ * <linux/slab.h>
+ * <linux/interrupt.h>
+ * <linux/pci.h>
+ * <linux/bitops.h>
+ * <asm/byteorder.h>
+ * <asm/io.h>
+ * <linux/netdevice.h>
+ * <linux/etherdevice.h>
+ * <linux/skbuff.h>
+ * those three depending on kernel version used:
+ * <linux/bios32.h>
+ * <linux/init.h>
+ * <asm/uaccess.h>
+ * <net/checksum.h>
+ *
+ * "h/skerror.h"
+ * "h/skdebug.h"
+ * "h/sktypes.h"
+ * "h/lm80.h"
+ * "h/xmac_ii.h"
+ *
+ * "h/skdrv2nd.h"
+ * "h/skqueue.h"
+ * "h/skgehwt.h"
+ * "h/sktimer.h"
+ * "h/ski2c.h"
+ * "h/skgepnmi.h"
+ * "h/skvpd.h"
+ * "h/skgehw.h"
+ * "h/skgeinit.h"
+ * "h/skaddr.h"
+ * "h/skgesirq.h"
+ * "h/skcsum.h"
+ * "h/skrlmt.h"
+ *
+ ******************************************************************************/
+
+#include "h/skversion.h"
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+
+#include "h/skdrv1st.h"
+#include "h/skdrv2nd.h"
+
+/*******************************************************************************
+ *
+ * Defines
+ *
+ ******************************************************************************/
+
+/* for debuging on x86 only */
+/* #define BREAKPOINT() asm(" int $3"); */
+
+/* use the transmit hw checksum driver functionality */
+#define USE_SK_TX_CHECKSUM
+
+/* use the receive hw checksum driver functionality */
+#define USE_SK_RX_CHECKSUM
+
+/* use the scatter-gather functionality with sendfile() */
+#define SK_ZEROCOPY
+
+/* use of a transmit complete interrupt */
+#define USE_TX_COMPLETE
+
+/*
+ * threshold for copying small receive frames
+ * set to 0 to avoid copying, set to 9001 to copy all frames
+ */
+#define SK_COPY_THRESHOLD 50
+
+/* number of adapters that can be configured via command line params */
+#define SK_MAX_CARD_PARAM 16
+
+
+
+/*
+ * use those defines for a compile-in version of the driver instead
+ * of command line parameters
+ */
+// #define LINK_SPEED_A {"Auto", }
+// #define LINK_SPEED_B {"Auto", }
+// #define AUTO_NEG_A {"Sense", }
+// #define AUTO_NEG_B {"Sense", }
+// #define DUP_CAP_A {"Both", }
+// #define DUP_CAP_B {"Both", }
+// #define FLOW_CTRL_A {"SymOrRem", }
+// #define FLOW_CTRL_B {"SymOrRem", }
+// #define ROLE_A {"Auto", }
+// #define ROLE_B {"Auto", }
+// #define PREF_PORT {"A", }
+// #define CON_TYPE {"Auto", }
+// #define RLMT_MODE {"CheckLinkState", }
+
+#define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
+#define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
+#define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
+
+
+/* Set blink mode*/
+#define OEM_CONFIG_VALUE ( SK_ACT_LED_BLINK | \
+ SK_DUP_LED_NORMAL | \
+ SK_LED_LINK100_ON)
+
+
+/* Isr return value */
+#define SkIsrRetVar irqreturn_t
+#define SkIsrRetNone IRQ_NONE
+#define SkIsrRetHandled IRQ_HANDLED
+
+
+/*******************************************************************************
+ *
+ * Local Function Prototypes
+ *
+ ******************************************************************************/
+
+static void FreeResources(struct SK_NET_DEVICE *dev);
+static int SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
+static SK_BOOL BoardAllocMem(SK_AC *pAC);
+static void BoardFreeMem(SK_AC *pAC);
+static void BoardInitMem(SK_AC *pAC);
+static void SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, int*, SK_BOOL);
+static SkIsrRetVar SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
+static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
+static int SkGeOpen(struct SK_NET_DEVICE *dev);
+static int SkGeClose(struct SK_NET_DEVICE *dev);
+static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
+static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
+static void SkGeSetRxMode(struct SK_NET_DEVICE *dev);
+static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
+static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
+static void GetConfiguration(SK_AC*);
+static void ProductStr(SK_AC*);
+static int XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
+static void FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
+static void FillRxRing(SK_AC*, RX_PORT*);
+static SK_BOOL FillRxDescriptor(SK_AC*, RX_PORT*);
+static void ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
+static void ClearAndStartRx(SK_AC*, int);
+static void ClearTxIrq(SK_AC*, int, int);
+static void ClearRxRing(SK_AC*, RX_PORT*);
+static void ClearTxRing(SK_AC*, TX_PORT*);
+static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
+static void PortReInitBmu(SK_AC*, int);
+static int SkGeIocMib(DEV_NET*, unsigned int, int);
+static int SkGeInitPCI(SK_AC *pAC);
+static void StartDrvCleanupTimer(SK_AC *pAC);
+static void StopDrvCleanupTimer(SK_AC *pAC);
+static int XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
+
+#ifdef SK_DIAG_SUPPORT
+static SK_U32 ParseDeviceNbrFromSlotName(const char *SlotName);
+static int SkDrvInitAdapter(SK_AC *pAC, int devNbr);
+static int SkDrvDeInitAdapter(SK_AC *pAC, int devNbr);
+#endif
+
+/*******************************************************************************
+ *
+ * Extern Function Prototypes
+ *
+ ******************************************************************************/
+static const char SKRootName[] = "sk98lin";
+static struct proc_dir_entry *pSkRootDir;
+extern struct file_operations sk_proc_fops;
+
+static inline void SkGeProcCreate(struct net_device *dev)
+{
+ struct proc_dir_entry *pe;
+
+ if (pSkRootDir &&
+ (pe = create_proc_entry(dev->name, S_IRUGO, pSkRootDir))) {
+ pe->proc_fops = &sk_proc_fops;
+ pe->data = dev;
+ pe->owner = THIS_MODULE;
+ }
+}
+
+static inline void SkGeProcRemove(struct net_device *dev)
+{
+ if (pSkRootDir)
+ remove_proc_entry(dev->name, pSkRootDir);
+}
+
+extern void SkDimEnableModerationIfNeeded(SK_AC *pAC);
+extern void SkDimDisplayModerationSettings(SK_AC *pAC);
+extern void SkDimStartModerationTimer(SK_AC *pAC);
+extern void SkDimModerate(SK_AC *pAC);
+extern void SkGeBlinkTimer(unsigned long data);
+
+#ifdef DEBUG
+static void DumpMsg(struct sk_buff*, char*);
+static void DumpData(char*, int);
+static void DumpLong(char*, int);
+#endif
+
+/* global variables *********************************************************/
+static SK_BOOL DoPrintInterfaceChange = SK_TRUE;
+extern struct ethtool_ops SkGeEthtoolOps;
+
+/* local variables **********************************************************/
+static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
+static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
+
+/*****************************************************************************
+ *
+ * SkGeInitPCI - Init the PCI resources
+ *
+ * Description:
+ * This function initialize the PCI resources and IO
+ *
+ * Returns: N/A
+ *
+ */
+int SkGeInitPCI(SK_AC *pAC)
+{
+ struct SK_NET_DEVICE *dev = pAC->dev[0];
+ struct pci_dev *pdev = pAC->PciDev;
+ int retval;
+
+ if (pci_enable_device(pdev) != 0) {
+ return 1;
+ }
+
+ dev->mem_start = pci_resource_start (pdev, 0);
+ pci_set_master(pdev);
+
+ if (pci_request_regions(pdev, pAC->Name) != 0) {
+ retval = 2;
+ goto out_disable;
+ }
+
+#ifdef SK_BIG_ENDIAN
+ /*
+ * On big endian machines, we use the adapter's aibility of
+ * reading the descriptors as big endian.
+ */
+ {
+ SK_U32 our2;
+ SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
+ our2 |= PCI_REV_DESC;
+ SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
+ }
+#endif
+
+ /*
+ * Remap the regs into kernel space.
+ */
+ pAC->IoBase = ioremap_nocache(dev->mem_start, 0x4000);
+
+ if (!pAC->IoBase){
+ retval = 3;
+ goto out_release;
+ }
+
+ return 0;
+
+ out_release:
+ pci_release_regions(pdev);
+ out_disable:
+ pci_disable_device(pdev);
+ return retval;
+}
+
+
+/*****************************************************************************
+ *
+ * FreeResources - release resources allocated for adapter
+ *
+ * Description:
+ * This function releases the IRQ, unmaps the IO and
+ * frees the desriptor ring.
+ *
+ * Returns: N/A
+ *
+ */
+static void FreeResources(struct SK_NET_DEVICE *dev)
+{
+SK_U32 AllocFlag;
+DEV_NET *pNet;
+SK_AC *pAC;
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+ AllocFlag = pAC->AllocFlag;
+ if (pAC->PciDev) {
+ pci_release_regions(pAC->PciDev);
+ }
+ if (AllocFlag & SK_ALLOC_IRQ) {
+ free_irq(dev->irq, dev);
+ }
+ if (pAC->IoBase) {
+ iounmap(pAC->IoBase);
+ }
+ if (pAC->pDescrMem) {
+ BoardFreeMem(pAC);
+ }
+
+} /* FreeResources */
+
+MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
+MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
+MODULE_LICENSE("GPL");
+
+#ifdef LINK_SPEED_A
+static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED;
+#else
+static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef LINK_SPEED_B
+static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED;
+#else
+static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef AUTO_NEG_A
+static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
+#else
+static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef DUP_CAP_A
+static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
+#else
+static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef FLOW_CTRL_A
+static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
+#else
+static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef ROLE_A
+static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
+#else
+static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef AUTO_NEG_B
+static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
+#else
+static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef DUP_CAP_B
+static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
+#else
+static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef FLOW_CTRL_B
+static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
+#else
+static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef ROLE_B
+static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
+#else
+static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef CON_TYPE
+static char *ConType[SK_MAX_CARD_PARAM] = CON_TYPE;
+#else
+static char *ConType[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef PREF_PORT
+static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
+#else
+static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+#ifdef RLMT_MODE
+static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
+#else
+static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
+#endif
+
+static int IntsPerSec[SK_MAX_CARD_PARAM];
+static char *Moderation[SK_MAX_CARD_PARAM];
+static char *ModerationMask[SK_MAX_CARD_PARAM];
+static char *AutoSizing[SK_MAX_CARD_PARAM];
+static char *Stats[SK_MAX_CARD_PARAM];
+
+module_param_array(Speed_A, charp, NULL, 0);
+module_param_array(Speed_B, charp, NULL, 0);
+module_param_array(AutoNeg_A, charp, NULL, 0);
+module_param_array(AutoNeg_B, charp, NULL, 0);
+module_param_array(DupCap_A, charp, NULL, 0);
+module_param_array(DupCap_B, charp, NULL, 0);
+module_param_array(FlowCtrl_A, charp, NULL, 0);
+module_param_array(FlowCtrl_B, charp, NULL, 0);
+module_param_array(Role_A, charp, NULL, 0);
+module_param_array(Role_B, charp, NULL, 0);
+module_param_array(ConType, charp, NULL, 0);
+module_param_array(PrefPort, charp, NULL, 0);
+module_param_array(RlmtMode, charp, NULL, 0);
+/* used for interrupt moderation */
+module_param_array(IntsPerSec, int, NULL, 0);
+module_param_array(Moderation, charp, NULL, 0);
+module_param_array(Stats, charp, NULL, 0);
+module_param_array(ModerationMask, charp, NULL, 0);
+module_param_array(AutoSizing, charp, NULL, 0);
+
+/*****************************************************************************
+ *
+ * SkGeBoardInit - do level 0 and 1 initialization
+ *
+ * Description:
+ * This function prepares the board hardware for running. The desriptor
+ * ring is set up, the IRQ is allocated and the configuration settings
+ * are examined.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
+{
+short i;
+unsigned long Flags;
+char *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
+char *VerStr = VER_STRING;
+int Ret; /* return code of request_irq */
+SK_BOOL DualNet;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
+ for (i=0; i<SK_MAX_MACS; i++) {
+ pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
+ pAC->TxPort[i][0].PortIndex = i;
+ pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
+ pAC->RxPort[i].PortIndex = i;
+ }
+
+ /* Initialize the mutexes */
+ for (i=0; i<SK_MAX_MACS; i++) {
+ spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
+ spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
+ }
+ spin_lock_init(&pAC->SlowPathLock);
+
+ /* setup phy_id blink timer */
+ pAC->BlinkTimer.function = SkGeBlinkTimer;
+ pAC->BlinkTimer.data = (unsigned long) dev;
+ init_timer(&pAC->BlinkTimer);
+
+ /* level 0 init common modules here */
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ /* Does a RESET on board ...*/
+ if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) {
+ printk("HWInit (0) failed.\n");
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ return(-EAGAIN);
+ }
+ SkI2cInit( pAC, pAC->IoBase, SK_INIT_DATA);
+ SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA);
+ SkPnmiInit( pAC, pAC->IoBase, SK_INIT_DATA);
+ SkAddrInit( pAC, pAC->IoBase, SK_INIT_DATA);
+ SkRlmtInit( pAC, pAC->IoBase, SK_INIT_DATA);
+ SkTimerInit(pAC, pAC->IoBase, SK_INIT_DATA);
+
+ pAC->BoardLevel = SK_INIT_DATA;
+ pAC->RxBufSize = ETH_BUF_SIZE;
+
+ SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
+ SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
+
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ /* level 1 init common modules here (HW init) */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
+ printk("sk98lin: HWInit (1) failed.\n");
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ return(-EAGAIN);
+ }
+ SkI2cInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
+ SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
+
+ /* Set chipset type support */
+ pAC->ChipsetType = 0;
+ if ((pAC->GIni.GIChipId == CHIP_ID_YUKON) ||
+ (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE)) {
+ pAC->ChipsetType = 1;
+ }
+
+ GetConfiguration(pAC);
+ if (pAC->RlmtNets == 2) {
+ pAC->GIni.GIPortUsage = SK_MUL_LINK;
+ }
+
+ pAC->BoardLevel = SK_INIT_IO;
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ if (pAC->GIni.GIMacsFound == 2) {
+ Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
+ } else if (pAC->GIni.GIMacsFound == 1) {
+ Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
+ pAC->Name, dev);
+ } else {
+ printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n",
+ pAC->GIni.GIMacsFound);
+ return -EAGAIN;
+ }
+
+ if (Ret) {
+ printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n",
+ dev->irq);
+ return -EAGAIN;
+ }
+ pAC->AllocFlag |= SK_ALLOC_IRQ;
+
+ /* Alloc memory for this board (Mem for RxD/TxD) : */
+ if(!BoardAllocMem(pAC)) {
+ printk("No memory for descriptor rings.\n");
+ return(-EAGAIN);
+ }
+
+ SkCsSetReceiveFlags(pAC,
+ SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP,
+ &pAC->CsOfs1, &pAC->CsOfs2, 0);
+ pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
+
+ BoardInitMem(pAC);
+ /* tschilling: New common function with minimum size check. */
+ DualNet = SK_FALSE;
+ if (pAC->RlmtNets == 2) {
+ DualNet = SK_TRUE;
+ }
+
+ if (SkGeInitAssignRamToQueues(
+ pAC,
+ pAC->ActivePort,
+ DualNet)) {
+ BoardFreeMem(pAC);
+ printk("sk98lin: SkGeInitAssignRamToQueues failed.\n");
+ return(-EAGAIN);
+ }
+
+ return (0);
+} /* SkGeBoardInit */
+
+
+/*****************************************************************************
+ *
+ * BoardAllocMem - allocate the memory for the descriptor rings
+ *
+ * Description:
+ * This function allocates the memory for all descriptor rings.
+ * Each ring is aligned for the desriptor alignment and no ring
+ * has a 4 GByte boundary in it (because the upper 32 bit must
+ * be constant for all descriptiors in one rings).
+ *
+ * Returns:
+ * SK_TRUE, if all memory could be allocated
+ * SK_FALSE, if not
+ */
+static SK_BOOL BoardAllocMem(
+SK_AC *pAC)
+{
+caddr_t pDescrMem; /* pointer to descriptor memory area */
+size_t AllocLength; /* length of complete descriptor area */
+int i; /* loop counter */
+unsigned long BusAddr;
+
+
+ /* rings plus one for alignment (do not cross 4 GB boundary) */
+ /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
+#if (BITS_PER_LONG == 32)
+ AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
+#else
+ AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
+ + RX_RING_SIZE + 8;
+#endif
+
+ pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
+ &pAC->pDescrMemDMA);
+
+ if (pDescrMem == NULL) {
+ return (SK_FALSE);
+ }
+ pAC->pDescrMem = pDescrMem;
+ BusAddr = (unsigned long) pAC->pDescrMemDMA;
+
+ /* Descriptors need 8 byte alignment, and this is ensured
+ * by pci_alloc_consistent.
+ */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("TX%d/A: pDescrMem: %lX, PhysDescrMem: %lX\n",
+ i, (unsigned long) pDescrMem,
+ BusAddr));
+ pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
+ pAC->TxPort[i][0].VTxDescrRing = BusAddr;
+ pDescrMem += TX_RING_SIZE;
+ BusAddr += TX_RING_SIZE;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("RX%d: pDescrMem: %lX, PhysDescrMem: %lX\n",
+ i, (unsigned long) pDescrMem,
+ (unsigned long)BusAddr));
+ pAC->RxPort[i].pRxDescrRing = pDescrMem;
+ pAC->RxPort[i].VRxDescrRing = BusAddr;
+ pDescrMem += RX_RING_SIZE;
+ BusAddr += RX_RING_SIZE;
+ } /* for */
+
+ return (SK_TRUE);
+} /* BoardAllocMem */
+
+
+/****************************************************************************
+ *
+ * BoardFreeMem - reverse of BoardAllocMem
+ *
+ * Description:
+ * Free all memory allocated in BoardAllocMem: adapter context,
+ * descriptor rings, locks.
+ *
+ * Returns: N/A
+ */
+static void BoardFreeMem(
+SK_AC *pAC)
+{
+size_t AllocLength; /* length of complete descriptor area */
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("BoardFreeMem\n"));
+#if (BITS_PER_LONG == 32)
+ AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
+#else
+ AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
+ + RX_RING_SIZE + 8;
+#endif
+
+ pci_free_consistent(pAC->PciDev, AllocLength,
+ pAC->pDescrMem, pAC->pDescrMemDMA);
+ pAC->pDescrMem = NULL;
+} /* BoardFreeMem */
+
+
+/*****************************************************************************
+ *
+ * BoardInitMem - initiate the descriptor rings
+ *
+ * Description:
+ * This function sets the descriptor rings up in memory.
+ * The adapter is initialized with the descriptor start addresses.
+ *
+ * Returns: N/A
+ */
+static void BoardInitMem(
+SK_AC *pAC) /* pointer to adapter context */
+{
+int i; /* loop counter */
+int RxDescrSize; /* the size of a rx descriptor rounded up to alignment*/
+int TxDescrSize; /* the size of a tx descriptor rounded up to alignment*/
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("BoardInitMem\n"));
+
+ RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
+ pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
+ TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
+ pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
+
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ SetupRing(
+ pAC,
+ pAC->TxPort[i][0].pTxDescrRing,
+ pAC->TxPort[i][0].VTxDescrRing,
+ (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
+ (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
+ (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
+ &pAC->TxPort[i][0].TxdRingFree,
+ SK_TRUE);
+ SetupRing(
+ pAC,
+ pAC->RxPort[i].pRxDescrRing,
+ pAC->RxPort[i].VRxDescrRing,
+ &pAC->RxPort[i].pRxdRingHead,
+ &pAC->RxPort[i].pRxdRingTail,
+ &pAC->RxPort[i].pRxdRingPrev,
+ &pAC->RxPort[i].RxdRingFree,
+ SK_FALSE);
+ }
+} /* BoardInitMem */
+
+
+/*****************************************************************************
+ *
+ * SetupRing - create one descriptor ring
+ *
+ * Description:
+ * This function creates one descriptor ring in the given memory area.
+ * The head, tail and number of free descriptors in the ring are set.
+ *
+ * Returns:
+ * none
+ */
+static void SetupRing(
+SK_AC *pAC,
+void *pMemArea, /* a pointer to the memory area for the ring */
+uintptr_t VMemArea, /* the virtual bus address of the memory area */
+RXD **ppRingHead, /* address where the head should be written */
+RXD **ppRingTail, /* address where the tail should be written */
+RXD **ppRingPrev, /* address where the tail should be written */
+int *pRingFree, /* address where the # of free descr. goes */
+SK_BOOL IsTx) /* flag: is this a tx ring */
+{
+int i; /* loop counter */
+int DescrSize; /* the size of a descriptor rounded up to alignment*/
+int DescrNum; /* number of descriptors per ring */
+RXD *pDescr; /* pointer to a descriptor (receive or transmit) */
+RXD *pNextDescr; /* pointer to the next descriptor */
+RXD *pPrevDescr; /* pointer to the previous descriptor */
+uintptr_t VNextDescr; /* the virtual bus address of the next descriptor */
+
+ if (IsTx == SK_TRUE) {
+ DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
+ DESCR_ALIGN;
+ DescrNum = TX_RING_SIZE / DescrSize;
+ } else {
+ DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
+ DESCR_ALIGN;
+ DescrNum = RX_RING_SIZE / DescrSize;
+ }
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("Descriptor size: %d Descriptor Number: %d\n",
+ DescrSize,DescrNum));
+
+ pDescr = (RXD*) pMemArea;
+ pPrevDescr = NULL;
+ pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
+ VNextDescr = VMemArea + DescrSize;
+ for(i=0; i<DescrNum; i++) {
+ /* set the pointers right */
+ pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
+ pDescr->pNextRxd = pNextDescr;
+ pDescr->TcpSumStarts = pAC->CsOfs;
+
+ /* advance one step */
+ pPrevDescr = pDescr;
+ pDescr = pNextDescr;
+ pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
+ VNextDescr += DescrSize;
+ }
+ pPrevDescr->pNextRxd = (RXD*) pMemArea;
+ pPrevDescr->VNextRxd = VMemArea;
+ pDescr = (RXD*) pMemArea;
+ *ppRingHead = (RXD*) pMemArea;
+ *ppRingTail = *ppRingHead;
+ *ppRingPrev = pPrevDescr;
+ *pRingFree = DescrNum;
+} /* SetupRing */
+
+
+/*****************************************************************************
+ *
+ * PortReInitBmu - re-initiate the descriptor rings for one port
+ *
+ * Description:
+ * This function reinitializes the descriptor rings of one port
+ * in memory. The port must be stopped before.
+ * The HW is initialized with the descriptor start addresses.
+ *
+ * Returns:
+ * none
+ */
+static void PortReInitBmu(
+SK_AC *pAC, /* pointer to adapter context */
+int PortIndex) /* index of the port for which to re-init */
+{
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("PortReInitBmu "));
+
+ /* set address of first descriptor of ring in BMU */
+ SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_L,
+ (uint32_t)(((caddr_t)
+ (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
+ pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
+ pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
+ 0xFFFFFFFF));
+ SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_H,
+ (uint32_t)(((caddr_t)
+ (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
+ pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
+ pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
+ SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_L,
+ (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
+ pAC->RxPort[PortIndex].pRxDescrRing +
+ pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
+ SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_H,
+ (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
+ pAC->RxPort[PortIndex].pRxDescrRing +
+ pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
+} /* PortReInitBmu */
+
+
+/****************************************************************************
+ *
+ * SkGeIsr - handle adapter interrupts
+ *
+ * Description:
+ * The interrupt routine is called when the network adapter
+ * generates an interrupt. It may also be called if another device
+ * shares this interrupt vector with the driver.
+ *
+ * Returns: N/A
+ *
+ */
+static SkIsrRetVar SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
+{
+struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
+DEV_NET *pNet;
+SK_AC *pAC;
+SK_U32 IntSrc; /* interrupts source register contents */
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ /*
+ * Check and process if its our interrupt
+ */
+ SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
+ if (IntSrc == 0) {
+ return SkIsrRetNone;
+ }
+
+ while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
+#if 0 /* software irq currently not used */
+ if (IntSrc & IS_IRQ_SW) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("Software IRQ\n"));
+ }
+#endif
+ if (IntSrc & IS_R1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX1 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
+ SK_PNMI_CNT_RX_INTR(pAC, 0);
+ }
+ if (IntSrc & IS_R2_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX2 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
+ SK_PNMI_CNT_RX_INTR(pAC, 1);
+ }
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IS_XA1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 0);
+ spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
+ FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
+ }
+ if (IntSrc & IS_XA2_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX2 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 1);
+ spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
+ FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
+ spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
+ }
+#if 0 /* only if sync. queues used */
+ if (IntSrc & IS_XS1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 1);
+ spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
+ }
+ if (IntSrc & IS_XS2_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX2 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 1);
+ spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
+ ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
+ }
+#endif
+#endif
+
+ /* do all IO at once */
+ if (IntSrc & IS_R1_F)
+ ClearAndStartRx(pAC, 0);
+ if (IntSrc & IS_R2_F)
+ ClearAndStartRx(pAC, 1);
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IS_XA1_F)
+ ClearTxIrq(pAC, 0, TX_PRIO_LOW);
+ if (IntSrc & IS_XA2_F)
+ ClearTxIrq(pAC, 1, TX_PRIO_LOW);
+#endif
+ SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
+ } /* while (IntSrc & IRQ_MASK != 0) */
+
+ IntSrc &= pAC->GIni.GIValIrqMask;
+ if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
+ ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
+ pAC->CheckQueue = SK_FALSE;
+ spin_lock(&pAC->SlowPathLock);
+ if (IntSrc & SPECIAL_IRQS)
+ SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
+
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock(&pAC->SlowPathLock);
+ }
+ /*
+ * do it all again is case we cleared an interrupt that
+ * came in after handling the ring (OUTs may be delayed
+ * in hardware buffers, but are through after IN)
+ *
+ * rroesler: has been commented out and shifted to
+ * SkGeDrvEvent(), because it is timer
+ * guarded now
+ *
+ ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
+ ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
+ */
+
+ if (pAC->CheckQueue) {
+ pAC->CheckQueue = SK_FALSE;
+ spin_lock(&pAC->SlowPathLock);
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock(&pAC->SlowPathLock);
+ }
+
+ /* IRQ is processed - Enable IRQs again*/
+ SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
+
+ return SkIsrRetHandled;
+} /* SkGeIsr */
+
+
+/****************************************************************************
+ *
+ * SkGeIsrOnePort - handle adapter interrupts for single port adapter
+ *
+ * Description:
+ * The interrupt routine is called when the network adapter
+ * generates an interrupt. It may also be called if another device
+ * shares this interrupt vector with the driver.
+ * This is the same as above, but handles only one port.
+ *
+ * Returns: N/A
+ *
+ */
+static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
+{
+struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
+DEV_NET *pNet;
+SK_AC *pAC;
+SK_U32 IntSrc; /* interrupts source register contents */
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ /*
+ * Check and process if its our interrupt
+ */
+ SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
+ if (IntSrc == 0) {
+ return SkIsrRetNone;
+ }
+
+ while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
+#if 0 /* software irq currently not used */
+ if (IntSrc & IS_IRQ_SW) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("Software IRQ\n"));
+ }
+#endif
+ if (IntSrc & IS_R1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX1 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
+ SK_PNMI_CNT_RX_INTR(pAC, 0);
+ }
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IS_XA1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 0);
+ spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
+ FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
+ }
+#if 0 /* only if sync. queues used */
+ if (IntSrc & IS_XS1_F) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC, 0);
+ spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
+ }
+#endif
+#endif
+
+ /* do all IO at once */
+ if (IntSrc & IS_R1_F)
+ ClearAndStartRx(pAC, 0);
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IS_XA1_F)
+ ClearTxIrq(pAC, 0, TX_PRIO_LOW);
+#endif
+ SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
+ } /* while (IntSrc & IRQ_MASK != 0) */
+
+ IntSrc &= pAC->GIni.GIValIrqMask;
+ if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
+ ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
+ pAC->CheckQueue = SK_FALSE;
+ spin_lock(&pAC->SlowPathLock);
+ if (IntSrc & SPECIAL_IRQS)
+ SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
+
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock(&pAC->SlowPathLock);
+ }
+ /*
+ * do it all again is case we cleared an interrupt that
+ * came in after handling the ring (OUTs may be delayed
+ * in hardware buffers, but are through after IN)
+ *
+ * rroesler: has been commented out and shifted to
+ * SkGeDrvEvent(), because it is timer
+ * guarded now
+ *
+ ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
+ */
+
+ /* IRQ is processed - Enable IRQs again*/
+ SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
+
+ return SkIsrRetHandled;
+} /* SkGeIsrOnePort */
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/****************************************************************************
+ *
+ * SkGePollController - polling receive, for netconsole
+ *
+ * Description:
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ *
+ * Returns: N/A
+ */
+static void SkGePollController(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ SkGeIsr(dev->irq, dev, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
+/****************************************************************************
+ *
+ * SkGeOpen - handle start of initialized adapter
+ *
+ * Description:
+ * This function starts the initialized adapter.
+ * The board level variable is set and the adapter is
+ * brought to full functionality.
+ * The device flags are set for operation.
+ * Do all necessary level 2 initialization, enable interrupts and
+ * give start command to RLMT.
+ *
+ * Returns:
+ * 0 on success
+ * != 0 on error
+ */
+static int SkGeOpen(
+struct SK_NET_DEVICE *dev)
+{
+ DEV_NET *pNet;
+ SK_AC *pAC;
+ unsigned long Flags; /* for spin lock */
+ int i;
+ SK_EVPARA EvPara; /* an event parameter union */
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
+
+#ifdef SK_DIAG_SUPPORT
+ if (pAC->DiagModeActive == DIAG_ACTIVE) {
+ if (pAC->Pnmi.DiagAttached == SK_DIAG_RUNNING) {
+ return (-1); /* still in use by diag; deny actions */
+ }
+ }
+#endif
+
+ /* Set blink mode */
+ if ((pAC->PciDev->vendor == 0x1186) || (pAC->PciDev->vendor == 0x11ab ))
+ pAC->GIni.GILedBlinkCtrl = OEM_CONFIG_VALUE;
+
+ if (pAC->BoardLevel == SK_INIT_DATA) {
+ /* level 1 init common modules here */
+ if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
+ printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
+ return (-1);
+ }
+ SkI2cInit (pAC, pAC->IoBase, SK_INIT_IO);
+ SkEventInit (pAC, pAC->IoBase, SK_INIT_IO);
+ SkPnmiInit (pAC, pAC->IoBase, SK_INIT_IO);
+ SkAddrInit (pAC, pAC->IoBase, SK_INIT_IO);
+ SkRlmtInit (pAC, pAC->IoBase, SK_INIT_IO);
+ SkTimerInit (pAC, pAC->IoBase, SK_INIT_IO);
+ pAC->BoardLevel = SK_INIT_IO;
+ }
+
+ if (pAC->BoardLevel != SK_INIT_RUN) {
+ /* tschilling: Level 2 init modules here, check return value. */
+ if (SkGeInit(pAC, pAC->IoBase, SK_INIT_RUN) != 0) {
+ printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
+ return (-1);
+ }
+ SkI2cInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ SkEventInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ SkPnmiInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ SkAddrInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ SkRlmtInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ SkTimerInit (pAC, pAC->IoBase, SK_INIT_RUN);
+ pAC->BoardLevel = SK_INIT_RUN;
+ }
+
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ /* Enable transmit descriptor polling. */
+ SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
+ FillRxRing(pAC, &pAC->RxPort[i]);
+ }
+ SkGeYellowLED(pAC, pAC->IoBase, 1);
+
+ StartDrvCleanupTimer(pAC);
+ SkDimEnableModerationIfNeeded(pAC);
+ SkDimDisplayModerationSettings(pAC);
+
+ pAC->GIni.GIValIrqMask &= IRQ_MASK;
+
+ /* enable Interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
+ SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+
+ if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
+ EvPara.Para32[0] = pAC->RlmtNets;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
+ EvPara);
+ EvPara.Para32[0] = pAC->RlmtMode;
+ EvPara.Para32[1] = 0;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
+ EvPara);
+ }
+
+ EvPara.Para32[0] = pNet->NetNr;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ pAC->MaxPorts++;
+ pNet->Up = 1;
+
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeOpen suceeded\n"));
+
+ return (0);
+} /* SkGeOpen */
+
+
+/****************************************************************************
+ *
+ * SkGeClose - Stop initialized adapter
+ *
+ * Description:
+ * Close initialized adapter.
+ *
+ * Returns:
+ * 0 - on success
+ * error code - on error
+ */
+static int SkGeClose(
+struct SK_NET_DEVICE *dev)
+{
+ DEV_NET *pNet;
+ DEV_NET *newPtrNet;
+ SK_AC *pAC;
+
+ unsigned long Flags; /* for spin lock */
+ int i;
+ int PortIdx;
+ SK_EVPARA EvPara;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+#ifdef SK_DIAG_SUPPORT
+ if (pAC->DiagModeActive == DIAG_ACTIVE) {
+ if (pAC->DiagFlowCtrl == SK_FALSE) {
+ /*
+ ** notify that the interface which has been closed
+ ** by operator interaction must not be started up
+ ** again when the DIAG has finished.
+ */
+ newPtrNet = netdev_priv(pAC->dev[0]);
+ if (newPtrNet == pNet) {
+ pAC->WasIfUp[0] = SK_FALSE;
+ } else {
+ pAC->WasIfUp[1] = SK_FALSE;
+ }
+ return 0; /* return to system everything is fine... */
+ } else {
+ pAC->DiagFlowCtrl = SK_FALSE;
+ }
+ }
+#endif
+
+ netif_stop_queue(dev);
+
+ if (pAC->RlmtNets == 1)
+ PortIdx = pAC->ActivePort;
+ else
+ PortIdx = pNet->NetNr;
+
+ StopDrvCleanupTimer(pAC);
+
+ /*
+ * Clear multicast table, promiscuous mode ....
+ */
+ SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
+ SK_PROM_MODE_NONE);
+
+ if (pAC->MaxPorts == 1) {
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ /* disable interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ EvPara.Para32[0] = pNet->NetNr;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ /* stop the hardware */
+ SkGeDeInit(pAC, pAC->IoBase);
+ pAC->BoardLevel = SK_INIT_DATA;
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ } else {
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ EvPara.Para32[0] = pNet->NetNr;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ SkPnmiEvent(pAC, pAC->IoBase, SK_PNMI_EVT_XMAC_RESET, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ /* Stop port */
+ spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
+ [TX_PRIO_LOW].TxDesRingLock, Flags);
+ SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
+ SK_STOP_ALL, SK_HARD_RST);
+ spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
+ [TX_PRIO_LOW].TxDesRingLock, Flags);
+ }
+
+ if (pAC->RlmtNets == 1) {
+ /* clear all descriptor rings */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
+ ClearRxRing(pAC, &pAC->RxPort[i]);
+ ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
+ }
+ } else {
+ /* clear port descriptor rings */
+ ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
+ ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
+ ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
+ }
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeClose: done "));
+
+ SK_MEMSET(&(pAC->PnmiBackup), 0, sizeof(SK_PNMI_STRUCT_DATA));
+ SK_MEMCPY(&(pAC->PnmiBackup), &(pAC->PnmiStruct),
+ sizeof(SK_PNMI_STRUCT_DATA));
+
+ pAC->MaxPorts--;
+ pNet->Up = 0;
+
+ return (0);
+} /* SkGeClose */
+
+
+/*****************************************************************************
+ *
+ * SkGeXmit - Linux frame transmit function
+ *
+ * Description:
+ * The system calls this function to send frames onto the wire.
+ * It puts the frame in the tx descriptor ring. If the ring is
+ * full then, the 'tbusy' flag is set.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ * WARNING: returning 1 in 'tbusy' case caused system crashes (double
+ * allocated skb's) !!!
+ */
+static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
+{
+DEV_NET *pNet;
+SK_AC *pAC;
+int Rc; /* return code of XmitFrame */
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ if ((!skb_shinfo(skb)->nr_frags) ||
+ (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
+ /* Don't activate scatter-gather and hardware checksum */
+
+ if (pAC->RlmtNets == 2)
+ Rc = XmitFrame(
+ pAC,
+ &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
+ skb);
+ else
+ Rc = XmitFrame(
+ pAC,
+ &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
+ skb);
+ } else {
+ /* scatter-gather and hardware TCP checksumming anabled*/
+ if (pAC->RlmtNets == 2)
+ Rc = XmitFrameSG(
+ pAC,
+ &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
+ skb);
+ else
+ Rc = XmitFrameSG(
+ pAC,
+ &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
+ skb);
+ }
+
+ /* Transmitter out of resources? */
+ if (Rc <= 0) {
+ netif_stop_queue(dev);
+ }
+
+ /* If not taken, give buffer ownership back to the
+ * queueing layer.
+ */
+ if (Rc < 0)
+ return (1);
+
+ dev->trans_start = jiffies;
+ return (0);
+} /* SkGeXmit */
+
+
+/*****************************************************************************
+ *
+ * XmitFrame - fill one socket buffer into the transmit ring
+ *
+ * Description:
+ * This function puts a message into the transmit descriptor ring
+ * if there is a descriptors left.
+ * Linux skb's consist of only one continuous buffer.
+ * The first step locks the ring. It is held locked
+ * all time to avoid problems with SWITCH_../PORT_RESET.
+ * Then the descriptoris allocated.
+ * The second part is linking the buffer to the descriptor.
+ * At the very last, the Control field of the descriptor
+ * is made valid for the BMU and a start TX command is given
+ * if necessary.
+ *
+ * Returns:
+ * > 0 - on succes: the number of bytes in the message
+ * = 0 - on resource shortage: this frame sent or dropped, now
+ * the ring is full ( -> set tbusy)
+ * < 0 - on failure: other problems ( -> return failure to upper layers)
+ */
+static int XmitFrame(
+SK_AC *pAC, /* pointer to adapter context */
+TX_PORT *pTxPort, /* pointer to struct of port to send to */
+struct sk_buff *pMessage) /* pointer to send-message */
+{
+ TXD *pTxd; /* the rxd to fill */
+ TXD *pOldTxd;
+ unsigned long Flags;
+ SK_U64 PhysAddr;
+ int Protocol;
+ int IpHeaderLength;
+ int BytesSend = pMessage->len;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
+
+ spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
+#ifndef USE_TX_COMPLETE
+ FreeTxDescriptors(pAC, pTxPort);
+#endif
+ if (pTxPort->TxdRingFree == 0) {
+ /*
+ ** no enough free descriptors in ring at the moment.
+ ** Maybe free'ing some old one help?
+ */
+ FreeTxDescriptors(pAC, pTxPort);
+ if (pTxPort->TxdRingFree == 0) {
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_TX_PROGRESS,
+ ("XmitFrame failed\n"));
+ /*
+ ** the desired message can not be sent
+ ** Because tbusy seems to be set, the message
+ ** should not be freed here. It will be used
+ ** by the scheduler of the ethernet handler
+ */
+ return (-1);
+ }
+ }
+
+ /*
+ ** If the passed socket buffer is of smaller MTU-size than 60,
+ ** copy everything into new buffer and fill all bytes between
+ ** the original packet end and the new packet end of 60 with 0x00.
+ ** This is to resolve faulty padding by the HW with 0xaa bytes.
+ */
+ if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
+ if ((pMessage = skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) == NULL) {
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ return 0;
+ }
+ pMessage->len = C_LEN_ETHERNET_MINSIZE;
+ }
+
+ /*
+ ** advance head counter behind descriptor needed for this frame,
+ ** so that needed descriptor is reserved from that on. The next
+ ** action will be to add the passed buffer to the TX-descriptor
+ */
+ pTxd = pTxPort->pTxdRingHead;
+ pTxPort->pTxdRingHead = pTxd->pNextTxd;
+ pTxPort->TxdRingFree--;
+
+#ifdef SK_DUMP_TX
+ DumpMsg(pMessage, "XmitFrame");
+#endif
+
+ /*
+ ** First step is to map the data to be sent via the adapter onto
+ ** the DMA memory. Kernel 2.2 uses virt_to_bus(), but kernels 2.4
+ ** and 2.6 need to use pci_map_page() for that mapping.
+ */
+ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
+ virt_to_page(pMessage->data),
+ ((unsigned long) pMessage->data & ~PAGE_MASK),
+ pMessage->len,
+ PCI_DMA_TODEVICE);
+ pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+ pTxd->pMBuf = pMessage;
+
+ if (pMessage->ip_summed == CHECKSUM_HW) {
+ Protocol = ((SK_U8)pMessage->data[C_OFFSET_IPPROTO] & 0xff);
+ if ((Protocol == C_PROTO_ID_UDP) &&
+ (pAC->GIni.GIChipRev == 0) &&
+ (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
+ pTxd->TBControl = BMU_TCP_CHECK;
+ } else {
+ pTxd->TBControl = BMU_UDP_CHECK;
+ }
+
+ IpHeaderLength = (SK_U8)pMessage->data[C_OFFSET_IPHEADER];
+ IpHeaderLength = (IpHeaderLength & 0xf) * 4;
+ pTxd->TcpSumOfs = 0; /* PH-Checksum already calculated */
+ pTxd->TcpSumSt = C_LEN_ETHERMAC_HEADER + IpHeaderLength +
+ (Protocol == C_PROTO_ID_UDP ?
+ C_OFFSET_UDPHEADER_UDPCS :
+ C_OFFSET_TCPHEADER_TCPCS);
+ pTxd->TcpSumWr = C_LEN_ETHERMAC_HEADER + IpHeaderLength;
+
+ pTxd->TBControl |= BMU_OWN | BMU_STF |
+ BMU_SW | BMU_EOF |
+#ifdef USE_TX_COMPLETE
+ BMU_IRQ_EOF |
+#endif
+ pMessage->len;
+ } else {
+ pTxd->TBControl = BMU_OWN | BMU_STF | BMU_CHECK |
+ BMU_SW | BMU_EOF |
+#ifdef USE_TX_COMPLETE
+ BMU_IRQ_EOF |
+#endif
+ pMessage->len;
+ }
+
+ /*
+ ** If previous descriptor already done, give TX start cmd
+ */
+ pOldTxd = xchg(&pTxPort->pTxdRingPrev, pTxd);
+ if ((pOldTxd->TBControl & BMU_OWN) == 0) {
+ SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
+ }
+
+ /*
+ ** after releasing the lock, the skb may immediately be free'd
+ */
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ if (pTxPort->TxdRingFree != 0) {
+ return (BytesSend);
+ } else {
+ return (0);
+ }
+
+} /* XmitFrame */
+
+/*****************************************************************************
+ *
+ * XmitFrameSG - fill one socket buffer into the transmit ring
+ * (use SG and TCP/UDP hardware checksumming)
+ *
+ * Description:
+ * This function puts a message into the transmit descriptor ring
+ * if there is a descriptors left.
+ *
+ * Returns:
+ * > 0 - on succes: the number of bytes in the message
+ * = 0 - on resource shortage: this frame sent or dropped, now
+ * the ring is full ( -> set tbusy)
+ * < 0 - on failure: other problems ( -> return failure to upper layers)
+ */
+static int XmitFrameSG(
+SK_AC *pAC, /* pointer to adapter context */
+TX_PORT *pTxPort, /* pointer to struct of port to send to */
+struct sk_buff *pMessage) /* pointer to send-message */
+{
+
+ TXD *pTxd;
+ TXD *pTxdFst;
+ TXD *pTxdLst;
+ int CurrFrag;
+ int BytesSend;
+ int IpHeaderLength;
+ int Protocol;
+ skb_frag_t *sk_frag;
+ SK_U64 PhysAddr;
+ unsigned long Flags;
+
+ spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
+#ifndef USE_TX_COMPLETE
+ FreeTxDescriptors(pAC, pTxPort);
+#endif
+ if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
+ FreeTxDescriptors(pAC, pTxPort);
+ if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_TX_PROGRESS,
+ ("XmitFrameSG failed - Ring full\n"));
+ /* this message can not be sent now */
+ return(-1);
+ }
+ }
+
+ pTxd = pTxPort->pTxdRingHead;
+ pTxdFst = pTxd;
+ pTxdLst = pTxd;
+ BytesSend = 0;
+ Protocol = 0;
+
+ /*
+ ** Map the first fragment (header) into the DMA-space
+ */
+ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
+ virt_to_page(pMessage->data),
+ ((unsigned long) pMessage->data & ~PAGE_MASK),
+ skb_headlen(pMessage),
+ PCI_DMA_TODEVICE);
+
+ pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+
+ /*
+ ** Does the HW need to evaluate checksum for TCP or UDP packets?
+ */
+ if (pMessage->ip_summed == CHECKSUM_HW) {
+ pTxd->TBControl = BMU_STF | BMU_STFWD | skb_headlen(pMessage);
+ /*
+ ** We have to use the opcode for tcp here, because the
+ ** opcode for udp is not working in the hardware yet
+ ** (Revision 2.0)
+ */
+ Protocol = ((SK_U8)pMessage->data[C_OFFSET_IPPROTO] & 0xff);
+ if ((Protocol == C_PROTO_ID_UDP) &&
+ (pAC->GIni.GIChipRev == 0) &&
+ (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
+ pTxd->TBControl |= BMU_TCP_CHECK;
+ } else {
+ pTxd->TBControl |= BMU_UDP_CHECK;
+ }
+
+ IpHeaderLength = ((SK_U8)pMessage->data[C_OFFSET_IPHEADER] & 0xf)*4;
+ pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */
+ pTxd->TcpSumSt = C_LEN_ETHERMAC_HEADER + IpHeaderLength +
+ (Protocol == C_PROTO_ID_UDP ?
+ C_OFFSET_UDPHEADER_UDPCS :
+ C_OFFSET_TCPHEADER_TCPCS);
+ pTxd->TcpSumWr = C_LEN_ETHERMAC_HEADER + IpHeaderLength;
+ } else {
+ pTxd->TBControl = BMU_CHECK | BMU_SW | BMU_STF |
+ skb_headlen(pMessage);
+ }
+
+ pTxd = pTxd->pNextTxd;
+ pTxPort->TxdRingFree--;
+ BytesSend += skb_headlen(pMessage);
+
+ /*
+ ** Browse over all SG fragments and map each of them into the DMA space
+ */
+ for (CurrFrag = 0; CurrFrag < skb_shinfo(pMessage)->nr_frags; CurrFrag++) {
+ sk_frag = &skb_shinfo(pMessage)->frags[CurrFrag];
+ /*
+ ** we already have the proper value in entry
+ */
+ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
+ sk_frag->page,
+ sk_frag->page_offset,
+ sk_frag->size,
+ PCI_DMA_TODEVICE);
+
+ pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+ pTxd->pMBuf = pMessage;
+
+ /*
+ ** Does the HW need to evaluate checksum for TCP or UDP packets?
+ */
+ if (pMessage->ip_summed == CHECKSUM_HW) {
+ pTxd->TBControl = BMU_OWN | BMU_SW | BMU_STFWD;
+ /*
+ ** We have to use the opcode for tcp here because the
+ ** opcode for udp is not working in the hardware yet
+ ** (revision 2.0)
+ */
+ if ((Protocol == C_PROTO_ID_UDP) &&
+ (pAC->GIni.GIChipRev == 0) &&
+ (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
+ pTxd->TBControl |= BMU_TCP_CHECK;
+ } else {
+ pTxd->TBControl |= BMU_UDP_CHECK;
+ }
+ } else {
+ pTxd->TBControl = BMU_CHECK | BMU_SW | BMU_OWN;
+ }
+
+ /*
+ ** Do we have the last fragment?
+ */
+ if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags ) {
+#ifdef USE_TX_COMPLETE
+ pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF | sk_frag->size;
+#else
+ pTxd->TBControl |= BMU_EOF | sk_frag->size;
+#endif
+ pTxdFst->TBControl |= BMU_OWN | BMU_SW;
+
+ } else {
+ pTxd->TBControl |= sk_frag->size;
+ }
+ pTxdLst = pTxd;
+ pTxd = pTxd->pNextTxd;
+ pTxPort->TxdRingFree--;
+ BytesSend += sk_frag->size;
+ }
+
+ /*
+ ** If previous descriptor already done, give TX start cmd
+ */
+ if ((pTxPort->pTxdRingPrev->TBControl & BMU_OWN) == 0) {
+ SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
+ }
+
+ pTxPort->pTxdRingPrev = pTxdLst;
+ pTxPort->pTxdRingHead = pTxd;
+
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+
+ if (pTxPort->TxdRingFree > 0) {
+ return (BytesSend);
+ } else {
+ return (0);
+ }
+}
+
+/*****************************************************************************
+ *
+ * FreeTxDescriptors - release descriptors from the descriptor ring
+ *
+ * Description:
+ * This function releases descriptors from a transmit ring if they
+ * have been sent by the BMU.
+ * If a descriptors is sent, it can be freed and the message can
+ * be freed, too.
+ * The SOFTWARE controllable bit is used to prevent running around a
+ * completely free ring for ever. If this bit is no set in the
+ * frame (by XmitFrame), this frame has never been sent or is
+ * already freed.
+ * The Tx descriptor ring lock must be held while calling this function !!!
+ *
+ * Returns:
+ * none
+ */
+static void FreeTxDescriptors(
+SK_AC *pAC, /* pointer to the adapter context */
+TX_PORT *pTxPort) /* pointer to destination port structure */
+{
+TXD *pTxd; /* pointer to the checked descriptor */
+TXD *pNewTail; /* pointer to 'end' of the ring */
+SK_U32 Control; /* TBControl field of descriptor */
+SK_U64 PhysAddr; /* address of DMA mapping */
+
+ pNewTail = pTxPort->pTxdRingTail;
+ pTxd = pNewTail;
+ /*
+ ** loop forever; exits if BMU_SW bit not set in start frame
+ ** or BMU_OWN bit set in any frame
+ */
+ while (1) {
+ Control = pTxd->TBControl;
+ if ((Control & BMU_SW) == 0) {
+ /*
+ ** software controllable bit is set in first
+ ** fragment when given to BMU. Not set means that
+ ** this fragment was never sent or is already
+ ** freed ( -> ring completely free now).
+ */
+ pTxPort->pTxdRingTail = pTxd;
+ netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
+ return;
+ }
+ if (Control & BMU_OWN) {
+ pTxPort->pTxdRingTail = pTxd;
+ if (pTxPort->TxdRingFree > 0) {
+ netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
+ }
+ return;
+ }
+
+ /*
+ ** release the DMA mapping, because until not unmapped
+ ** this buffer is considered being under control of the
+ ** adapter card!
+ */
+ PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
+ PhysAddr |= (SK_U64) pTxd->VDataLow;
+ pci_unmap_page(pAC->PciDev, PhysAddr,
+ pTxd->pMBuf->len,
+ PCI_DMA_TODEVICE);
+
+ if (Control & BMU_EOF)
+ DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
+
+ pTxPort->TxdRingFree++;
+ pTxd->TBControl &= ~BMU_SW;
+ pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
+ } /* while(forever) */
+} /* FreeTxDescriptors */
+
+/*****************************************************************************
+ *
+ * FillRxRing - fill the receive ring with valid descriptors
+ *
+ * Description:
+ * This function fills the receive ring descriptors with data
+ * segments and makes them valid for the BMU.
+ * The active ring is filled completely, if possible.
+ * The non-active ring is filled only partial to save memory.
+ *
+ * Description of rx ring structure:
+ * head - points to the descriptor which will be used next by the BMU
+ * tail - points to the next descriptor to give to the BMU
+ *
+ * Returns: N/A
+ */
+static void FillRxRing(
+SK_AC *pAC, /* pointer to the adapter context */
+RX_PORT *pRxPort) /* ptr to port struct for which the ring
+ should be filled */
+{
+unsigned long Flags;
+
+ spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
+ while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
+ if(!FillRxDescriptor(pAC, pRxPort))
+ break;
+ }
+ spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
+} /* FillRxRing */
+
+
+/*****************************************************************************
+ *
+ * FillRxDescriptor - fill one buffer into the receive ring
+ *
+ * Description:
+ * The function allocates a new receive buffer and
+ * puts it into the next descriptor.
+ *
+ * Returns:
+ * SK_TRUE - a buffer was added to the ring
+ * SK_FALSE - a buffer could not be added
+ */
+static SK_BOOL FillRxDescriptor(
+SK_AC *pAC, /* pointer to the adapter context struct */
+RX_PORT *pRxPort) /* ptr to port struct of ring to fill */
+{
+struct sk_buff *pMsgBlock; /* pointer to a new message block */
+RXD *pRxd; /* the rxd to fill */
+SK_U16 Length; /* data fragment length */
+SK_U64 PhysAddr; /* physical address of a rx buffer */
+
+ pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
+ if (pMsgBlock == NULL) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_ENTRY,
+ ("%s: Allocation of rx buffer failed !\n",
+ pAC->dev[pRxPort->PortIndex]->name));
+ SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
+ return(SK_FALSE);
+ }
+ skb_reserve(pMsgBlock, 2); /* to align IP frames */
+ /* skb allocated ok, so add buffer */
+ pRxd = pRxPort->pRxdRingTail;
+ pRxPort->pRxdRingTail = pRxd->pNextRxd;
+ pRxPort->RxdRingFree--;
+ Length = pAC->RxBufSize;
+ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
+ virt_to_page(pMsgBlock->data),
+ ((unsigned long) pMsgBlock->data &
+ ~PAGE_MASK),
+ pAC->RxBufSize - 2,
+ PCI_DMA_FROMDEVICE);
+
+ pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+ pRxd->pMBuf = pMsgBlock;
+ pRxd->RBControl = BMU_OWN |
+ BMU_STF |
+ BMU_IRQ_EOF |
+ BMU_TCP_CHECK |
+ Length;
+ return (SK_TRUE);
+
+} /* FillRxDescriptor */
+
+
+/*****************************************************************************
+ *
+ * ReQueueRxBuffer - fill one buffer back into the receive ring
+ *
+ * Description:
+ * Fill a given buffer back into the rx ring. The buffer
+ * has been previously allocated and aligned, and its phys.
+ * address calculated, so this is no more necessary.
+ *
+ * Returns: N/A
+ */
+static void ReQueueRxBuffer(
+SK_AC *pAC, /* pointer to the adapter context struct */
+RX_PORT *pRxPort, /* ptr to port struct of ring to fill */
+struct sk_buff *pMsg, /* pointer to the buffer */
+SK_U32 PhysHigh, /* phys address high dword */
+SK_U32 PhysLow) /* phys address low dword */
+{
+RXD *pRxd; /* the rxd to fill */
+SK_U16 Length; /* data fragment length */
+
+ pRxd = pRxPort->pRxdRingTail;
+ pRxPort->pRxdRingTail = pRxd->pNextRxd;
+ pRxPort->RxdRingFree--;
+ Length = pAC->RxBufSize;
+
+ pRxd->VDataLow = PhysLow;
+ pRxd->VDataHigh = PhysHigh;
+ pRxd->pMBuf = pMsg;
+ pRxd->RBControl = BMU_OWN |
+ BMU_STF |
+ BMU_IRQ_EOF |
+ BMU_TCP_CHECK |
+ Length;
+ return;
+} /* ReQueueRxBuffer */
+
+/*****************************************************************************
+ *
+ * ReceiveIrq - handle a receive IRQ
+ *
+ * Description:
+ * This function is called when a receive IRQ is set.
+ * It walks the receive descriptor ring and sends up all
+ * frames that are complete.
+ *
+ * Returns: N/A
+ */
+static void ReceiveIrq(
+ SK_AC *pAC, /* pointer to adapter context */
+ RX_PORT *pRxPort, /* pointer to receive port struct */
+ SK_BOOL SlowPathLock) /* indicates if SlowPathLock is needed */
+{
+RXD *pRxd; /* pointer to receive descriptors */
+SK_U32 Control; /* control field of descriptor */
+struct sk_buff *pMsg; /* pointer to message holding frame */
+struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */
+int FrameLength; /* total length of received frame */
+int IpFrameLength;
+SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */
+SK_EVPARA EvPara; /* an event parameter union */
+unsigned long Flags; /* for spin lock */
+int PortIndex = pRxPort->PortIndex;
+unsigned int Offset;
+unsigned int NumBytes;
+unsigned int ForRlmt;
+SK_BOOL IsBc;
+SK_BOOL IsMc;
+SK_BOOL IsBadFrame; /* Bad frame */
+
+SK_U32 FrameStat;
+unsigned short Csum1;
+unsigned short Csum2;
+unsigned short Type;
+int Result;
+SK_U64 PhysAddr;
+
+rx_start:
+ /* do forever; exit if BMU_OWN found */
+ for ( pRxd = pRxPort->pRxdRingHead ;
+ pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
+ pRxd = pRxd->pNextRxd,
+ pRxPort->pRxdRingHead = pRxd,
+ pRxPort->RxdRingFree ++) {
+
+ /*
+ * For a better understanding of this loop
+ * Go through every descriptor beginning at the head
+ * Please note: the ring might be completely received so the OWN bit
+ * set is not a good crirteria to leave that loop.
+ * Therefore the RingFree counter is used.
+ * On entry of this loop pRxd is a pointer to the Rxd that needs
+ * to be checked next.
+ */
+
+ Control = pRxd->RBControl;
+
+ /* check if this descriptor is ready */
+ if ((Control & BMU_OWN) != 0) {
+ /* this descriptor is not yet ready */
+ /* This is the usual end of the loop */
+ /* We don't need to start the ring again */
+ FillRxRing(pAC, pRxPort);
+ return;
+ }
+ pAC->DynIrqModInfo.NbrProcessedDescr++;
+
+ /* get length of frame and check it */
+ FrameLength = Control & BMU_BBC;
+ if (FrameLength > pAC->RxBufSize) {
+ goto rx_failed;
+ }
+
+ /* check for STF and EOF */
+ if ((Control & (BMU_STF | BMU_EOF)) != (BMU_STF | BMU_EOF)) {
+ goto rx_failed;
+ }
+
+ /* here we have a complete frame in the ring */
+ pMsg = pRxd->pMBuf;
+
+ FrameStat = pRxd->FrameStat;
+
+ /* check for frame length mismatch */
+#define XMR_FS_LEN_SHIFT 18
+#define GMR_FS_LEN_SHIFT 16
+ if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
+ if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("skge: Frame length mismatch (%u/%u).\n",
+ FrameLength,
+ (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
+ goto rx_failed;
+ }
+ }
+ else {
+ if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("skge: Frame length mismatch (%u/%u).\n",
+ FrameLength,
+ (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
+ goto rx_failed;
+ }
+ }
+
+ /* Set Rx Status */
+ if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
+ IsBc = (FrameStat & XMR_FS_BC) != 0;
+ IsMc = (FrameStat & XMR_FS_MC) != 0;
+ IsBadFrame = (FrameStat &
+ (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
+ } else {
+ IsBc = (FrameStat & GMR_FS_BC) != 0;
+ IsMc = (FrameStat & GMR_FS_MC) != 0;
+ IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
+ ((FrameStat & GMR_FS_RX_OK) == 0));
+ }
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
+ ("Received frame of length %d on port %d\n",
+ FrameLength, PortIndex));
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
+ ("Number of free rx descriptors: %d\n",
+ pRxPort->RxdRingFree));
+/* DumpMsg(pMsg, "Rx"); */
+
+ if ((Control & BMU_STAT_VAL) != BMU_STAT_VAL || (IsBadFrame)) {
+#if 0
+ (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
+#endif
+ /* there is a receive error in this frame */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("skge: Error in received frame, dropped!\n"
+ "Control: %x\nRxStat: %x\n",
+ Control, FrameStat));
+
+ ReQueueRxBuffer(pAC, pRxPort, pMsg,
+ pRxd->VDataHigh, pRxd->VDataLow);
+
+ continue;
+ }
+
+ /*
+ * if short frame then copy data to reduce memory waste
+ */
+ if ((FrameLength < SK_COPY_THRESHOLD) &&
+ ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
+ /*
+ * Short frame detected and allocation successfull
+ */
+ /* use new skb and copy data */
+ skb_reserve(pNewMsg, 2);
+ skb_put(pNewMsg, FrameLength);
+ PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
+ PhysAddr |= (SK_U64) pRxd->VDataLow;
+
+ pci_dma_sync_single_for_cpu(pAC->PciDev,
+ (dma_addr_t) PhysAddr,
+ FrameLength,
+ PCI_DMA_FROMDEVICE);
+ eth_copy_and_sum(pNewMsg, pMsg->data,
+ FrameLength, 0);
+ pci_dma_sync_single_for_device(pAC->PciDev,
+ (dma_addr_t) PhysAddr,
+ FrameLength,
+ PCI_DMA_FROMDEVICE);
+ ReQueueRxBuffer(pAC, pRxPort, pMsg,
+ pRxd->VDataHigh, pRxd->VDataLow);
+
+ pMsg = pNewMsg;
+
+ }
+ else {
+ /*
+ * if large frame, or SKB allocation failed, pass
+ * the SKB directly to the networking
+ */
+
+ PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
+ PhysAddr |= (SK_U64) pRxd->VDataLow;
+
+ /* release the DMA mapping */
+ pci_unmap_single(pAC->PciDev,
+ PhysAddr,
+ pAC->RxBufSize - 2,
+ PCI_DMA_FROMDEVICE);
+
+ /* set length in message */
+ skb_put(pMsg, FrameLength);
+ /* hardware checksum */
+ Type = ntohs(*((short*)&pMsg->data[12]));
+
+#ifdef USE_SK_RX_CHECKSUM
+ if (Type == 0x800) {
+ Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff);
+ Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
+ IpFrameLength = (int) ntohs((unsigned short)
+ ((unsigned short *) pMsg->data)[8]);
+
+ /*
+ * Test: If frame is padded, a check is not possible!
+ * Frame not padded? Length difference must be 14 (0xe)!
+ */
+ if ((FrameLength - IpFrameLength) != 0xe) {
+ /* Frame padded => TCP offload not possible! */
+ pMsg->ip_summed = CHECKSUM_NONE;
+ } else {
+ /* Frame not padded => TCP offload! */
+ if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) &&
+ (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) ||
+ (pAC->ChipsetType)) {
+ Result = SkCsGetReceiveInfo(pAC,
+ &pMsg->data[14],
+ Csum1, Csum2, pRxPort->PortIndex);
+ if (Result ==
+ SKCS_STATUS_IP_FRAGMENT ||
+ Result ==
+ SKCS_STATUS_IP_CSUM_OK ||
+ Result ==
+ SKCS_STATUS_TCP_CSUM_OK ||
+ Result ==
+ SKCS_STATUS_UDP_CSUM_OK) {
+ pMsg->ip_summed =
+ CHECKSUM_UNNECESSARY;
+ }
+ else if (Result ==
+ SKCS_STATUS_TCP_CSUM_ERROR ||
+ Result ==
+ SKCS_STATUS_UDP_CSUM_ERROR ||
+ Result ==
+ SKCS_STATUS_IP_CSUM_ERROR_UDP ||
+ Result ==
+ SKCS_STATUS_IP_CSUM_ERROR_TCP ||
+ Result ==
+ SKCS_STATUS_IP_CSUM_ERROR ) {
+ /* HW Checksum error */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("skge: CRC error. Frame dropped!\n"));
+ goto rx_failed;
+ } else {
+ pMsg->ip_summed =
+ CHECKSUM_NONE;
+ }
+ }/* checksumControl calculation valid */
+ } /* Frame length check */
+ } /* IP frame */
+#else
+ pMsg->ip_summed = CHECKSUM_NONE;
+#endif
+ } /* frame > SK_COPY_TRESHOLD */
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
+ ForRlmt = SK_RLMT_RX_PROTOCOL;
+#if 0
+ IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
+#endif
+ SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
+ IsBc, &Offset, &NumBytes);
+ if (NumBytes != 0) {
+#if 0
+ IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
+#endif
+ SK_RLMT_LOOKAHEAD(pAC, PortIndex,
+ &pMsg->data[Offset],
+ IsBc, IsMc, &ForRlmt);
+ }
+ if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
+ /* send up only frames from active port */
+ if ((PortIndex == pAC->ActivePort) ||
+ (pAC->RlmtNets == 2)) {
+ /* frame for upper layer */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
+#ifdef xDEBUG
+ DumpMsg(pMsg, "Rx");
+#endif
+ SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
+ FrameLength, pRxPort->PortIndex);
+
+ pMsg->dev = pAC->dev[pRxPort->PortIndex];
+ pMsg->protocol = eth_type_trans(pMsg,
+ pAC->dev[pRxPort->PortIndex]);
+ netif_rx(pMsg);
+ pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
+ }
+ else {
+ /* drop frame */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("D"));
+ DEV_KFREE_SKB(pMsg);
+ }
+
+ } /* if not for rlmt */
+ else {
+ /* packet for rlmt */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
+ pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
+ pAC->IoBase, FrameLength);
+ if (pRlmtMbuf != NULL) {
+ pRlmtMbuf->pNext = NULL;
+ pRlmtMbuf->Length = FrameLength;
+ pRlmtMbuf->PortIdx = PortIndex;
+ EvPara.pParaPtr = pRlmtMbuf;
+ memcpy((char*)(pRlmtMbuf->pData),
+ (char*)(pMsg->data),
+ FrameLength);
+
+ /* SlowPathLock needed? */
+ if (SlowPathLock == SK_TRUE) {
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ SkEventQueue(pAC, SKGE_RLMT,
+ SK_RLMT_PACKET_RECEIVED,
+ EvPara);
+ pAC->CheckQueue = SK_TRUE;
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ } else {
+ SkEventQueue(pAC, SKGE_RLMT,
+ SK_RLMT_PACKET_RECEIVED,
+ EvPara);
+ pAC->CheckQueue = SK_TRUE;
+ }
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("Q"));
+ }
+ if ((pAC->dev[pRxPort->PortIndex]->flags &
+ (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
+ (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
+ SK_RLMT_RX_PROTOCOL) {
+ pMsg->dev = pAC->dev[pRxPort->PortIndex];
+ pMsg->protocol = eth_type_trans(pMsg,
+ pAC->dev[pRxPort->PortIndex]);
+ netif_rx(pMsg);
+ pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
+ }
+ else {
+ DEV_KFREE_SKB(pMsg);
+ }
+
+ } /* if packet for rlmt */
+ } /* for ... scanning the RXD ring */
+
+ /* RXD ring is empty -> fill and restart */
+ FillRxRing(pAC, pRxPort);
+ /* do not start if called from Close */
+ if (pAC->BoardLevel > SK_INIT_DATA) {
+ ClearAndStartRx(pAC, PortIndex);
+ }
+ return;
+
+rx_failed:
+ /* remove error frame */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
+ ("Schrottdescriptor, length: 0x%x\n", FrameLength));
+
+ /* release the DMA mapping */
+
+ PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
+ PhysAddr |= (SK_U64) pRxd->VDataLow;
+ pci_unmap_page(pAC->PciDev,
+ PhysAddr,
+ pAC->RxBufSize - 2,
+ PCI_DMA_FROMDEVICE);
+ DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
+ pRxd->pMBuf = NULL;
+ pRxPort->RxdRingFree++;
+ pRxPort->pRxdRingHead = pRxd->pNextRxd;
+ goto rx_start;
+
+} /* ReceiveIrq */
+
+
+/*****************************************************************************
+ *
+ * ClearAndStartRx - give a start receive command to BMU, clear IRQ
+ *
+ * Description:
+ * This function sends a start command and a clear interrupt
+ * command for one receive queue to the BMU.
+ *
+ * Returns: N/A
+ * none
+ */
+static void ClearAndStartRx(
+SK_AC *pAC, /* pointer to the adapter context */
+int PortIndex) /* index of the receive port (XMAC) */
+{
+ SK_OUT8(pAC->IoBase,
+ RxQueueAddr[PortIndex]+Q_CSR,
+ CSR_START | CSR_IRQ_CL_F);
+} /* ClearAndStartRx */
+
+
+/*****************************************************************************
+ *
+ * ClearTxIrq - give a clear transmit IRQ command to BMU
+ *
+ * Description:
+ * This function sends a clear tx IRQ command for one
+ * transmit queue to the BMU.
+ *
+ * Returns: N/A
+ */
+static void ClearTxIrq(
+SK_AC *pAC, /* pointer to the adapter context */
+int PortIndex, /* index of the transmit port (XMAC) */
+int Prio) /* priority or normal queue */
+{
+ SK_OUT8(pAC->IoBase,
+ TxQueueAddr[PortIndex][Prio]+Q_CSR,
+ CSR_IRQ_CL_F);
+} /* ClearTxIrq */
+
+
+/*****************************************************************************
+ *
+ * ClearRxRing - remove all buffers from the receive ring
+ *
+ * Description:
+ * This function removes all receive buffers from the ring.
+ * The receive BMU must be stopped before calling this function.
+ *
+ * Returns: N/A
+ */
+static void ClearRxRing(
+SK_AC *pAC, /* pointer to adapter context */
+RX_PORT *pRxPort) /* pointer to rx port struct */
+{
+RXD *pRxd; /* pointer to the current descriptor */
+unsigned long Flags;
+SK_U64 PhysAddr;
+
+ if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
+ return;
+ }
+ spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
+ pRxd = pRxPort->pRxdRingHead;
+ do {
+ if (pRxd->pMBuf != NULL) {
+
+ PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
+ PhysAddr |= (SK_U64) pRxd->VDataLow;
+ pci_unmap_page(pAC->PciDev,
+ PhysAddr,
+ pAC->RxBufSize - 2,
+ PCI_DMA_FROMDEVICE);
+ DEV_KFREE_SKB(pRxd->pMBuf);
+ pRxd->pMBuf = NULL;
+ }
+ pRxd->RBControl &= BMU_OWN;
+ pRxd = pRxd->pNextRxd;
+ pRxPort->RxdRingFree++;
+ } while (pRxd != pRxPort->pRxdRingTail);
+ pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
+ spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
+} /* ClearRxRing */
+
+/*****************************************************************************
+ *
+ * ClearTxRing - remove all buffers from the transmit ring
+ *
+ * Description:
+ * This function removes all transmit buffers from the ring.
+ * The transmit BMU must be stopped before calling this function
+ * and transmitting at the upper level must be disabled.
+ * The BMU own bit of all descriptors is cleared, the rest is
+ * done by calling FreeTxDescriptors.
+ *
+ * Returns: N/A
+ */
+static void ClearTxRing(
+SK_AC *pAC, /* pointer to adapter context */
+TX_PORT *pTxPort) /* pointer to tx prt struct */
+{
+TXD *pTxd; /* pointer to the current descriptor */
+int i;
+unsigned long Flags;
+
+ spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
+ pTxd = pTxPort->pTxdRingHead;
+ for (i=0; i<pAC->TxDescrPerRing; i++) {
+ pTxd->TBControl &= ~BMU_OWN;
+ pTxd = pTxd->pNextTxd;
+ }
+ FreeTxDescriptors(pAC, pTxPort);
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+} /* ClearTxRing */
+
+/*****************************************************************************
+ *
+ * SkGeSetMacAddr - Set the hardware MAC address
+ *
+ * Description:
+ * This function sets the MAC address used by the adapter.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
+{
+
+DEV_NET *pNet = netdev_priv(dev);
+SK_AC *pAC = pNet->pAC;
+
+struct sockaddr *addr = p;
+unsigned long Flags;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeSetMacAddr starts now...\n"));
+ if(netif_running(dev))
+ return -EBUSY;
+
+ memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+
+ if (pAC->RlmtNets == 2)
+ SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
+ (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
+ else
+ SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
+ (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
+
+
+
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ return 0;
+} /* SkGeSetMacAddr */
+
+
+/*****************************************************************************
+ *
+ * SkGeSetRxMode - set receive mode
+ *
+ * Description:
+ * This function sets the receive mode of an adapter. The adapter
+ * supports promiscuous mode, allmulticast mode and a number of
+ * multicast addresses. If more multicast addresses the available
+ * are selected, a hash function in the hardware is used.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
+{
+
+DEV_NET *pNet;
+SK_AC *pAC;
+
+struct dev_mc_list *pMcList;
+int i;
+int PortIdx;
+unsigned long Flags;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeSetRxMode starts now... "));
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+ if (pAC->RlmtNets == 1)
+ PortIdx = pAC->ActivePort;
+ else
+ PortIdx = pNet->NetNr;
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ if (dev->flags & IFF_PROMISC) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("PROMISCUOUS mode\n"));
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
+ SK_PROM_MODE_LLC);
+ } else if (dev->flags & IFF_ALLMULTI) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("ALLMULTI mode\n"));
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
+ SK_PROM_MODE_ALL_MC);
+ } else {
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
+ SK_PROM_MODE_NONE);
+ SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("Number of MC entries: %d ", dev->mc_count));
+
+ pMcList = dev->mc_list;
+ for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
+ SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
+ (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
+ ("%02x:%02x:%02x:%02x:%02x:%02x\n",
+ pMcList->dmi_addr[0],
+ pMcList->dmi_addr[1],
+ pMcList->dmi_addr[2],
+ pMcList->dmi_addr[3],
+ pMcList->dmi_addr[4],
+ pMcList->dmi_addr[5]));
+ }
+ SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
+ }
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ return;
+} /* SkGeSetRxMode */
+
+
+/*****************************************************************************
+ *
+ * SkGeChangeMtu - set the MTU to another value
+ *
+ * Description:
+ * This function sets is called whenever the MTU size is changed
+ * (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
+ * ethernet MTU size, long frame support is activated.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
+{
+DEV_NET *pNet;
+DEV_NET *pOtherNet;
+SK_AC *pAC;
+unsigned long Flags;
+int i;
+SK_EVPARA EvPara;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeChangeMtu starts now...\n"));
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
+ return -EINVAL;
+ }
+
+ if(pAC->BoardLevel != SK_INIT_RUN) {
+ return -EINVAL;
+ }
+
+#ifdef SK_DIAG_SUPPORT
+ if (pAC->DiagModeActive == DIAG_ACTIVE) {
+ if (pAC->DiagFlowCtrl == SK_FALSE) {
+ return -1; /* still in use, deny any actions of MTU */
+ } else {
+ pAC->DiagFlowCtrl = SK_FALSE;
+ }
+ }
+#endif
+
+ pNet->Mtu = NewMtu;
+ pOtherNet = netdev_priv(pAC->dev[1 - pNet->NetNr]);
+ if ((pOtherNet->Mtu>1500) && (NewMtu<=1500) && (pOtherNet->Up==1)) {
+ return(0);
+ }
+
+ pAC->RxBufSize = NewMtu + 32;
+ dev->mtu = NewMtu;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("New MTU: %d\n", NewMtu));
+
+ /*
+ ** Prevent any reconfiguration while changing the MTU
+ ** by disabling any interrupts
+ */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+
+ /*
+ ** Notify RLMT that any ports are to be stopped
+ */
+ EvPara.Para32[0] = 0;
+ EvPara.Para32[1] = -1;
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ EvPara.Para32[0] = 1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ } else {
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ }
+
+ /*
+ ** After calling the SkEventDispatcher(), RLMT is aware about
+ ** the stopped ports -> configuration can take place!
+ */
+ SkEventDispatcher(pAC, pAC->IoBase);
+
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
+ netif_stop_queue(pAC->dev[i]);
+
+ }
+
+ /*
+ ** Depending on the desired MTU size change, a different number of
+ ** RX buffers need to be allocated
+ */
+ if (NewMtu > 1500) {
+ /*
+ ** Use less rx buffers
+ */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
+ (pAC->RxDescrPerRing / 4);
+ } else {
+ if (i == pAC->ActivePort) {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
+ (pAC->RxDescrPerRing / 4);
+ } else {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
+ (pAC->RxDescrPerRing / 10);
+ }
+ }
+ }
+ } else {
+ /*
+ ** Use the normal amount of rx buffers
+ */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ pAC->RxPort[i].RxFillLimit = 1;
+ } else {
+ if (i == pAC->ActivePort) {
+ pAC->RxPort[i].RxFillLimit = 1;
+ } else {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
+ (pAC->RxDescrPerRing / 4);
+ }
+ }
+ }
+ }
+
+ SkGeDeInit(pAC, pAC->IoBase);
+
+ /*
+ ** enable/disable hardware support for long frames
+ */
+ if (NewMtu > 1500) {
+// pAC->JumboActivated = SK_TRUE; /* is never set back !!! */
+ pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
+ } else {
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ pAC->GIni.GIPortUsage = SK_MUL_LINK;
+ } else {
+ pAC->GIni.GIPortUsage = SK_RED_LINK;
+ }
+ }
+
+ SkGeInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkI2cInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
+ SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
+ SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
+
+ /*
+ ** tschilling:
+ ** Speed and others are set back to default in level 1 init!
+ */
+ GetConfiguration(pAC);
+
+ SkGeInit( pAC, pAC->IoBase, SK_INIT_RUN);
+ SkI2cInit( pAC, pAC->IoBase, SK_INIT_RUN);
+ SkEventInit(pAC, pAC->IoBase, SK_INIT_RUN);
+ SkPnmiInit( pAC, pAC->IoBase, SK_INIT_RUN);
+ SkAddrInit( pAC, pAC->IoBase, SK_INIT_RUN);
+ SkRlmtInit( pAC, pAC->IoBase, SK_INIT_RUN);
+ SkTimerInit(pAC, pAC->IoBase, SK_INIT_RUN);
+
+ /*
+ ** clear and reinit the rx rings here
+ */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
+ ClearRxRing(pAC, &pAC->RxPort[i]);
+ FillRxRing(pAC, &pAC->RxPort[i]);
+
+ /*
+ ** Enable transmit descriptor polling
+ */
+ SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
+ FillRxRing(pAC, &pAC->RxPort[i]);
+ };
+
+ SkGeYellowLED(pAC, pAC->IoBase, 1);
+ SkDimEnableModerationIfNeeded(pAC);
+ SkDimDisplayModerationSettings(pAC);
+
+ netif_start_queue(pAC->dev[pNet->PortNr]);
+ for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
+ spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
+ }
+
+ /*
+ ** Enable Interrupts again
+ */
+ SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
+ SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
+
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+
+ /*
+ ** Notify RLMT about the changing and restarting one (or more) ports
+ */
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ EvPara.Para32[0] = pAC->RlmtNets;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, EvPara);
+ EvPara.Para32[0] = pNet->PortNr;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+
+ if (pOtherNet->Up) {
+ EvPara.Para32[0] = pOtherNet->PortNr;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ }
+ } else {
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ }
+
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ /*
+ ** While testing this driver with latest kernel 2.5 (2.5.70), it
+ ** seems as if upper layers have a problem to handle a successful
+ ** return value of '0'. If such a zero is returned, the complete
+ ** system hangs for several minutes (!), which is in acceptable.
+ **
+ ** Currently it is not clear, what the exact reason for this problem
+ ** is. The implemented workaround for 2.5 is to return the desired
+ ** new MTU size if all needed changes for the new MTU size where
+ ** performed. In kernels 2.2 and 2.4, a zero value is returned,
+ ** which indicates the successful change of the mtu-size.
+ */
+ return NewMtu;
+
+} /* SkGeChangeMtu */
+
+
+/*****************************************************************************
+ *
+ * SkGeStats - return ethernet device statistics
+ *
+ * Description:
+ * This function return statistic data about the ethernet device
+ * to the operating system.
+ *
+ * Returns:
+ * pointer to the statistic structure.
+ */
+static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
+{
+DEV_NET *pNet = netdev_priv(dev);
+SK_AC *pAC = pNet->pAC;
+SK_PNMI_STRUCT_DATA *pPnmiStruct; /* structure for all Pnmi-Data */
+SK_PNMI_STAT *pPnmiStat; /* pointer to virtual XMAC stat. data */
+SK_PNMI_CONF *pPnmiConf; /* pointer to virtual link config. */
+unsigned int Size; /* size of pnmi struct */
+unsigned long Flags; /* for spin lock */
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeStats starts now...\n"));
+ pPnmiStruct = &pAC->PnmiStruct;
+
+#ifdef SK_DIAG_SUPPORT
+ if ((pAC->DiagModeActive == DIAG_NOTACTIVE) &&
+ (pAC->BoardLevel == SK_INIT_RUN)) {
+#endif
+ SK_MEMSET(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ Size = SK_PNMI_STRUCT_SIZE;
+ SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+#ifdef SK_DIAG_SUPPORT
+ }
+#endif
+
+ pPnmiStat = &pPnmiStruct->Stat[0];
+ pPnmiConf = &pPnmiStruct->Conf[0];
+
+ pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
+ pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
+ pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
+ pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
+
+ if (pNet->Mtu <= 1500) {
+ pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
+ } else {
+ pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
+ pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
+ }
+
+
+ if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
+ pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
+
+ pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
+ pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
+ pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
+ pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
+ pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
+
+ /* detailed rx_errors: */
+ pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
+ pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
+ pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
+ pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
+ pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
+ pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
+
+ /* detailed tx_errors */
+ pAC->stats.tx_aborted_errors = (SK_U32) 0;
+ pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
+ pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
+ pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
+ pAC->stats.tx_window_errors = (SK_U32) 0;
+
+ return(&pAC->stats);
+} /* SkGeStats */
+
+
+/*****************************************************************************
+ *
+ * SkGeIoctl - IO-control function
+ *
+ * Description:
+ * This function is called if an ioctl is issued on the device.
+ * There are three subfunction for reading, writing and test-writing
+ * the private MIB data structure (usefull for SysKonnect-internal tools).
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
+{
+DEV_NET *pNet;
+SK_AC *pAC;
+void *pMemBuf;
+struct pci_dev *pdev = NULL;
+SK_GE_IOCTL Ioctl;
+unsigned int Err = 0;
+int Size = 0;
+int Ret = 0;
+unsigned int Length = 0;
+int HeaderLength = sizeof(SK_U32) + sizeof(SK_U32);
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeIoctl starts now...\n"));
+
+ pNet = netdev_priv(dev);
+ pAC = pNet->pAC;
+
+ if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
+ return -EFAULT;
+ }
+
+ switch(cmd) {
+ case SK_IOCTL_SETMIB:
+ case SK_IOCTL_PRESETMIB:
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ case SK_IOCTL_GETMIB:
+ if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
+ Ioctl.Len<sizeof(pAC->PnmiStruct)?
+ Ioctl.Len : sizeof(pAC->PnmiStruct))) {
+ return -EFAULT;
+ }
+ Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
+ if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
+ Ioctl.Len<Size? Ioctl.Len : Size)) {
+ return -EFAULT;
+ }
+ Ioctl.Len = Size;
+ if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
+ return -EFAULT;
+ }
+ break;
+ case SK_IOCTL_GEN:
+ if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
+ Length = Ioctl.Len;
+ } else {
+ Length = sizeof(pAC->PnmiStruct) + HeaderLength;
+ }
+ if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
+ return -ENOMEM;
+ }
+ if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
+ Err = -EFAULT;
+ goto fault_gen;
+ }
+ if ((Ret = SkPnmiGenIoctl(pAC, pAC->IoBase, pMemBuf, &Length, 0)) < 0) {
+ Err = -EFAULT;
+ goto fault_gen;
+ }
+ if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
+ Err = -EFAULT;
+ goto fault_gen;
+ }
+ Ioctl.Len = Length;
+ if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
+ Err = -EFAULT;
+ goto fault_gen;
+ }
+fault_gen:
+ kfree(pMemBuf); /* cleanup everything */
+ break;
+#ifdef SK_DIAG_SUPPORT
+ case SK_IOCTL_DIAG:
+ if (!capable(CAP_NET_ADMIN)) return -EPERM;
+ if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
+ Length = Ioctl.Len;
+ } else {
+ Length = sizeof(pAC->PnmiStruct) + HeaderLength;
+ }
+ if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
+ return -ENOMEM;
+ }
+ if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
+ Err = -EFAULT;
+ goto fault_diag;
+ }
+ pdev = pAC->PciDev;
+ Length = 3 * sizeof(SK_U32); /* Error, Bus and Device */
+ /*
+ ** While coding this new IOCTL interface, only a few lines of code
+ ** are to to be added. Therefore no dedicated function has been
+ ** added. If more functionality is added, a separate function
+ ** should be used...
+ */
+ * ((SK_U32 *)pMemBuf) = 0;
+ * ((SK_U32 *)pMemBuf + 1) = pdev->bus->number;
+ * ((SK_U32 *)pMemBuf + 2) = ParseDeviceNbrFromSlotName(pci_name(pdev));
+ if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
+ Err = -EFAULT;
+ goto fault_diag;
+ }
+ Ioctl.Len = Length;
+ if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
+ Err = -EFAULT;
+ goto fault_diag;
+ }
+fault_diag:
+ kfree(pMemBuf); /* cleanup everything */
+ break;
+#endif
+ default:
+ Err = -EOPNOTSUPP;
+ }
+
+ return(Err);
+
+} /* SkGeIoctl */
+
+
+/*****************************************************************************
+ *
+ * SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
+ *
+ * Description:
+ * This function reads/writes the MIB data using PNMI (Private Network
+ * Management Interface).
+ * The destination for the data must be provided with the
+ * ioctl call and is given to the driver in the form of
+ * a user space address.
+ * Copying from the user-provided data area into kernel messages
+ * and back is done by copy_from_user and copy_to_user calls in
+ * SkGeIoctl.
+ *
+ * Returns:
+ * returned size from PNMI call
+ */
+static int SkGeIocMib(
+DEV_NET *pNet, /* pointer to the adapter context */
+unsigned int Size, /* length of ioctl data */
+int mode) /* flag for set/preset */
+{
+unsigned long Flags; /* for spin lock */
+SK_AC *pAC;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeIocMib starts now...\n"));
+ pAC = pNet->pAC;
+ /* access MIB */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ switch(mode) {
+ case SK_IOCTL_GETMIB:
+ SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
+ pNet->NetNr);
+ break;
+ case SK_IOCTL_PRESETMIB:
+ SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
+ pNet->NetNr);
+ break;
+ case SK_IOCTL_SETMIB:
+ SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
+ pNet->NetNr);
+ break;
+ default:
+ break;
+ }
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("MIB data access succeeded\n"));
+ return (Size);
+} /* SkGeIocMib */
+
+
+/*****************************************************************************
+ *
+ * GetConfiguration - read configuration information
+ *
+ * Description:
+ * This function reads per-adapter configuration information from
+ * the options provided on the command line.
+ *
+ * Returns:
+ * none
+ */
+static void GetConfiguration(
+SK_AC *pAC) /* pointer to the adapter context structure */
+{
+SK_I32 Port; /* preferred port */
+SK_BOOL AutoSet;
+SK_BOOL DupSet;
+int LinkSpeed = SK_LSPEED_AUTO; /* Link speed */
+int AutoNeg = 1; /* autoneg off (0) or on (1) */
+int DuplexCap = 0; /* 0=both,1=full,2=half */
+int FlowCtrl = SK_FLOW_MODE_SYM_OR_REM; /* FlowControl */
+int MSMode = SK_MS_MODE_AUTO; /* master/slave mode */
+
+SK_BOOL IsConTypeDefined = SK_TRUE;
+SK_BOOL IsLinkSpeedDefined = SK_TRUE;
+SK_BOOL IsFlowCtrlDefined = SK_TRUE;
+SK_BOOL IsRoleDefined = SK_TRUE;
+SK_BOOL IsModeDefined = SK_TRUE;
+/*
+ * The two parameters AutoNeg. and DuplexCap. map to one configuration
+ * parameter. The mapping is described by this table:
+ * DuplexCap -> | both | full | half |
+ * AutoNeg | | | |
+ * -----------------------------------------------------------------
+ * Off | illegal | Full | Half |
+ * -----------------------------------------------------------------
+ * On | AutoBoth | AutoFull | AutoHalf |
+ * -----------------------------------------------------------------
+ * Sense | AutoSense | AutoSense | AutoSense |
+ */
+int Capabilities[3][3] =
+ { { -1, SK_LMODE_FULL , SK_LMODE_HALF },
+ {SK_LMODE_AUTOBOTH , SK_LMODE_AUTOFULL , SK_LMODE_AUTOHALF },
+ {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
+
+#define DC_BOTH 0
+#define DC_FULL 1
+#define DC_HALF 2
+#define AN_OFF 0
+#define AN_ON 1
+#define AN_SENS 2
+#define M_CurrPort pAC->GIni.GP[Port]
+
+
+ /*
+ ** Set the default values first for both ports!
+ */
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_AUTO;
+ }
+
+ /*
+ ** Check merged parameter ConType. If it has not been used,
+ ** verify any other parameter (e.g. AutoNeg) and use default values.
+ **
+ ** Stating both ConType and other lowlevel link parameters is also
+ ** possible. If this is the case, the passed ConType-parameter is
+ ** overwritten by the lowlevel link parameter.
+ **
+ ** The following settings are used for a merged ConType-parameter:
+ **
+ ** ConType DupCap AutoNeg FlowCtrl Role Speed
+ ** ------- ------ ------- -------- ---------- -----
+ ** Auto Both On SymOrRem Auto Auto
+ ** 100FD Full Off None <ignored> 100
+ ** 100HD Half Off None <ignored> 100
+ ** 10FD Full Off None <ignored> 10
+ ** 10HD Half Off None <ignored> 10
+ **
+ ** This ConType parameter is used for all ports of the adapter!
+ */
+ if ( (ConType != NULL) &&
+ (pAC->Index < SK_MAX_CARD_PARAM) &&
+ (ConType[pAC->Index] != NULL) ) {
+
+ /* Check chipset family */
+ if ((!pAC->ChipsetType) &&
+ (strcmp(ConType[pAC->Index],"Auto")!=0) &&
+ (strcmp(ConType[pAC->Index],"")!=0)) {
+ /* Set the speed parameter back */
+ printk("sk98lin: Illegal value \"%s\" "
+ "for ConType."
+ " Using Auto.\n",
+ ConType[pAC->Index]);
+
+ sprintf(ConType[pAC->Index], "Auto");
+ }
+
+ if (strcmp(ConType[pAC->Index],"")==0) {
+ IsConTypeDefined = SK_FALSE; /* No ConType defined */
+ } else if (strcmp(ConType[pAC->Index],"Auto")==0) {
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_AUTO;
+ }
+ } else if (strcmp(ConType[pAC->Index],"100FD")==0) {
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_100MBPS;
+ }
+ } else if (strcmp(ConType[pAC->Index],"100HD")==0) {
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_100MBPS;
+ }
+ } else if (strcmp(ConType[pAC->Index],"10FD")==0) {
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_10MBPS;
+ }
+ } else if (strcmp(ConType[pAC->Index],"10HD")==0) {
+ for (Port = 0; Port < SK_MAX_MACS; Port++) {
+ M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
+ M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ M_CurrPort.PMSMode = SK_MS_MODE_AUTO;
+ M_CurrPort.PLinkSpeed = SK_LSPEED_10MBPS;
+ }
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for ConType\n",
+ ConType[pAC->Index]);
+ IsConTypeDefined = SK_FALSE; /* Wrong ConType defined */
+ }
+ } else {
+ IsConTypeDefined = SK_FALSE; /* No ConType defined */
+ }
+
+ /*
+ ** Parse any parameter settings for port A:
+ ** a) any LinkSpeed stated?
+ */
+ if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Speed_A[pAC->Index] != NULL) {
+ if (strcmp(Speed_A[pAC->Index],"")==0) {
+ IsLinkSpeedDefined = SK_FALSE;
+ } else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
+ LinkSpeed = SK_LSPEED_AUTO;
+ } else if (strcmp(Speed_A[pAC->Index],"10")==0) {
+ LinkSpeed = SK_LSPEED_10MBPS;
+ } else if (strcmp(Speed_A[pAC->Index],"100")==0) {
+ LinkSpeed = SK_LSPEED_100MBPS;
+ } else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
+ LinkSpeed = SK_LSPEED_1000MBPS;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for Speed_A\n",
+ Speed_A[pAC->Index]);
+ IsLinkSpeedDefined = SK_FALSE;
+ }
+ } else {
+ IsLinkSpeedDefined = SK_FALSE;
+ }
+
+ /*
+ ** Check speed parameter:
+ ** Only copper type adapter and GE V2 cards
+ */
+ if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
+ ((LinkSpeed != SK_LSPEED_AUTO) &&
+ (LinkSpeed != SK_LSPEED_1000MBPS))) {
+ printk("sk98lin: Illegal value for Speed_A. "
+ "Not a copper card or GE V2 card\n Using "
+ "speed 1000\n");
+ LinkSpeed = SK_LSPEED_1000MBPS;
+ }
+
+ /*
+ ** Decide whether to set new config value if somethig valid has
+ ** been received.
+ */
+ if (IsLinkSpeedDefined) {
+ pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
+ }
+
+ /*
+ ** b) Any Autonegotiation and DuplexCapabilities set?
+ ** Please note that both belong together...
+ */
+ AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
+ AutoSet = SK_FALSE;
+ if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ AutoNeg_A[pAC->Index] != NULL) {
+ AutoSet = SK_TRUE;
+ if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
+ AutoSet = SK_FALSE;
+ } else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
+ AutoNeg = AN_ON;
+ } else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
+ AutoNeg = AN_OFF;
+ } else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
+ AutoNeg = AN_SENS;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for AutoNeg_A\n",
+ AutoNeg_A[pAC->Index]);
+ }
+ }
+
+ DuplexCap = DC_BOTH;
+ DupSet = SK_FALSE;
+ if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ DupCap_A[pAC->Index] != NULL) {
+ DupSet = SK_TRUE;
+ if (strcmp(DupCap_A[pAC->Index],"")==0) {
+ DupSet = SK_FALSE;
+ } else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
+ DuplexCap = DC_BOTH;
+ } else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
+ DuplexCap = DC_FULL;
+ } else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
+ DuplexCap = DC_HALF;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for DupCap_A\n",
+ DupCap_A[pAC->Index]);
+ }
+ }
+
+ /*
+ ** Check for illegal combinations
+ */
+ if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
+ ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
+ (DuplexCap == SK_LMODE_STAT_HALF)) &&
+ (pAC->ChipsetType)) {
+ printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
+ " Using Full Duplex.\n");
+ DuplexCap = DC_FULL;
+ }
+
+ if ( AutoSet && AutoNeg==AN_SENS && DupSet) {
+ printk("sk98lin, Port A: DuplexCapabilities"
+ " ignored using Sense mode\n");
+ }
+
+ if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
+ printk("sk98lin: Port A: Illegal combination"
+ " of values AutoNeg. and DuplexCap.\n Using "
+ "Full Duplex\n");
+ DuplexCap = DC_FULL;
+ }
+
+ if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
+ DuplexCap = DC_FULL;
+ }
+
+ if (!AutoSet && DupSet) {
+ printk("sk98lin: Port A: Duplex setting not"
+ " possible in\n default AutoNegotiation mode"
+ " (Sense).\n Using AutoNegotiation On\n");
+ AutoNeg = AN_ON;
+ }
+
+ /*
+ ** set the desired mode
+ */
+ if (AutoSet || DupSet) {
+ pAC->GIni.GP[0].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
+ }
+
+ /*
+ ** c) Any Flowcontrol-parameter set?
+ */
+ if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ FlowCtrl_A[pAC->Index] != NULL) {
+ if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
+ IsFlowCtrlDefined = SK_FALSE;
+ } else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
+ FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
+ } else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
+ FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
+ } else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
+ FlowCtrl = SK_FLOW_MODE_LOC_SEND;
+ } else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
+ FlowCtrl = SK_FLOW_MODE_NONE;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for FlowCtrl_A\n",
+ FlowCtrl_A[pAC->Index]);
+ IsFlowCtrlDefined = SK_FALSE;
+ }
+ } else {
+ IsFlowCtrlDefined = SK_FALSE;
+ }
+
+ if (IsFlowCtrlDefined) {
+ if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
+ printk("sk98lin: Port A: FlowControl"
+ " impossible without AutoNegotiation,"
+ " disabled\n");
+ FlowCtrl = SK_FLOW_MODE_NONE;
+ }
+ pAC->GIni.GP[0].PFlowCtrlMode = FlowCtrl;
+ }
+
+ /*
+ ** d) What is with the RoleParameter?
+ */
+ if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Role_A[pAC->Index] != NULL) {
+ if (strcmp(Role_A[pAC->Index],"")==0) {
+ IsRoleDefined = SK_FALSE;
+ } else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
+ MSMode = SK_MS_MODE_AUTO;
+ } else if (strcmp(Role_A[pAC->Index],"Master")==0) {
+ MSMode = SK_MS_MODE_MASTER;
+ } else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
+ MSMode = SK_MS_MODE_SLAVE;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for Role_A\n",
+ Role_A[pAC->Index]);
+ IsRoleDefined = SK_FALSE;
+ }
+ } else {
+ IsRoleDefined = SK_FALSE;
+ }
+
+ if (IsRoleDefined == SK_TRUE) {
+ pAC->GIni.GP[0].PMSMode = MSMode;
+ }
+
+
+
+ /*
+ ** Parse any parameter settings for port B:
+ ** a) any LinkSpeed stated?
+ */
+ IsConTypeDefined = SK_TRUE;
+ IsLinkSpeedDefined = SK_TRUE;
+ IsFlowCtrlDefined = SK_TRUE;
+ IsModeDefined = SK_TRUE;
+
+ if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Speed_B[pAC->Index] != NULL) {
+ if (strcmp(Speed_B[pAC->Index],"")==0) {
+ IsLinkSpeedDefined = SK_FALSE;
+ } else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
+ LinkSpeed = SK_LSPEED_AUTO;
+ } else if (strcmp(Speed_B[pAC->Index],"10")==0) {
+ LinkSpeed = SK_LSPEED_10MBPS;
+ } else if (strcmp(Speed_B[pAC->Index],"100")==0) {
+ LinkSpeed = SK_LSPEED_100MBPS;
+ } else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
+ LinkSpeed = SK_LSPEED_1000MBPS;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for Speed_B\n",
+ Speed_B[pAC->Index]);
+ IsLinkSpeedDefined = SK_FALSE;
+ }
+ } else {
+ IsLinkSpeedDefined = SK_FALSE;
+ }
+
+ /*
+ ** Check speed parameter:
+ ** Only copper type adapter and GE V2 cards
+ */
+ if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
+ ((LinkSpeed != SK_LSPEED_AUTO) &&
+ (LinkSpeed != SK_LSPEED_1000MBPS))) {
+ printk("sk98lin: Illegal value for Speed_B. "
+ "Not a copper card or GE V2 card\n Using "
+ "speed 1000\n");
+ LinkSpeed = SK_LSPEED_1000MBPS;
+ }
+
+ /*
+ ** Decide whether to set new config value if somethig valid has
+ ** been received.
+ */
+ if (IsLinkSpeedDefined) {
+ pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
+ }
+
+ /*
+ ** b) Any Autonegotiation and DuplexCapabilities set?
+ ** Please note that both belong together...
+ */
+ AutoNeg = AN_SENS; /* default: do auto Sense */
+ AutoSet = SK_FALSE;
+ if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ AutoNeg_B[pAC->Index] != NULL) {
+ AutoSet = SK_TRUE;
+ if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
+ AutoSet = SK_FALSE;
+ } else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
+ AutoNeg = AN_ON;
+ } else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
+ AutoNeg = AN_OFF;
+ } else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
+ AutoNeg = AN_SENS;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for AutoNeg_B\n",
+ AutoNeg_B[pAC->Index]);
+ }
+ }
+
+ DuplexCap = DC_BOTH;
+ DupSet = SK_FALSE;
+ if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ DupCap_B[pAC->Index] != NULL) {
+ DupSet = SK_TRUE;
+ if (strcmp(DupCap_B[pAC->Index],"")==0) {
+ DupSet = SK_FALSE;
+ } else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
+ DuplexCap = DC_BOTH;
+ } else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
+ DuplexCap = DC_FULL;
+ } else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
+ DuplexCap = DC_HALF;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for DupCap_B\n",
+ DupCap_B[pAC->Index]);
+ }
+ }
+
+
+ /*
+ ** Check for illegal combinations
+ */
+ if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
+ ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
+ (DuplexCap == SK_LMODE_STAT_HALF)) &&
+ (pAC->ChipsetType)) {
+ printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
+ " Using Full Duplex.\n");
+ DuplexCap = DC_FULL;
+ }
+
+ if (AutoSet && AutoNeg==AN_SENS && DupSet) {
+ printk("sk98lin, Port B: DuplexCapabilities"
+ " ignored using Sense mode\n");
+ }
+
+ if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
+ printk("sk98lin: Port B: Illegal combination"
+ " of values AutoNeg. and DuplexCap.\n Using "
+ "Full Duplex\n");
+ DuplexCap = DC_FULL;
+ }
+
+ if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
+ DuplexCap = DC_FULL;
+ }
+
+ if (!AutoSet && DupSet) {
+ printk("sk98lin: Port B: Duplex setting not"
+ " possible in\n default AutoNegotiation mode"
+ " (Sense).\n Using AutoNegotiation On\n");
+ AutoNeg = AN_ON;
+ }
+
+ /*
+ ** set the desired mode
+ */
+ if (AutoSet || DupSet) {
+ pAC->GIni.GP[1].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
+ }
+
+ /*
+ ** c) Any FlowCtrl parameter set?
+ */
+ if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ FlowCtrl_B[pAC->Index] != NULL) {
+ if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
+ IsFlowCtrlDefined = SK_FALSE;
+ } else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
+ FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
+ } else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
+ FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
+ } else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
+ FlowCtrl = SK_FLOW_MODE_LOC_SEND;
+ } else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
+ FlowCtrl = SK_FLOW_MODE_NONE;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for FlowCtrl_B\n",
+ FlowCtrl_B[pAC->Index]);
+ IsFlowCtrlDefined = SK_FALSE;
+ }
+ } else {
+ IsFlowCtrlDefined = SK_FALSE;
+ }
+
+ if (IsFlowCtrlDefined) {
+ if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
+ printk("sk98lin: Port B: FlowControl"
+ " impossible without AutoNegotiation,"
+ " disabled\n");
+ FlowCtrl = SK_FLOW_MODE_NONE;
+ }
+ pAC->GIni.GP[1].PFlowCtrlMode = FlowCtrl;
+ }
+
+ /*
+ ** d) What is the RoleParameter?
+ */
+ if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Role_B[pAC->Index] != NULL) {
+ if (strcmp(Role_B[pAC->Index],"")==0) {
+ IsRoleDefined = SK_FALSE;
+ } else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
+ MSMode = SK_MS_MODE_AUTO;
+ } else if (strcmp(Role_B[pAC->Index],"Master")==0) {
+ MSMode = SK_MS_MODE_MASTER;
+ } else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
+ MSMode = SK_MS_MODE_SLAVE;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for Role_B\n",
+ Role_B[pAC->Index]);
+ IsRoleDefined = SK_FALSE;
+ }
+ } else {
+ IsRoleDefined = SK_FALSE;
+ }
+
+ if (IsRoleDefined) {
+ pAC->GIni.GP[1].PMSMode = MSMode;
+ }
+
+ /*
+ ** Evaluate settings for both ports
+ */
+ pAC->ActivePort = 0;
+ if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ PrefPort[pAC->Index] != NULL) {
+ if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
+ pAC->ActivePort = 0;
+ pAC->Rlmt.Net[0].Preference = -1; /* auto */
+ pAC->Rlmt.Net[0].PrefPort = 0;
+ } else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
+ /*
+ ** do not set ActivePort here, thus a port
+ ** switch is issued after net up.
+ */
+ Port = 0;
+ pAC->Rlmt.Net[0].Preference = Port;
+ pAC->Rlmt.Net[0].PrefPort = Port;
+ } else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
+ /*
+ ** do not set ActivePort here, thus a port
+ ** switch is issued after net up.
+ */
+ if (pAC->GIni.GIMacsFound == 1) {
+ printk("sk98lin: Illegal value \"B\" for PrefPort.\n"
+ " Port B not available on single port adapters.\n");
+
+ pAC->ActivePort = 0;
+ pAC->Rlmt.Net[0].Preference = -1; /* auto */
+ pAC->Rlmt.Net[0].PrefPort = 0;
+ } else {
+ Port = 1;
+ pAC->Rlmt.Net[0].Preference = Port;
+ pAC->Rlmt.Net[0].PrefPort = Port;
+ }
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for PrefPort\n",
+ PrefPort[pAC->Index]);
+ }
+ }
+
+ pAC->RlmtNets = 1;
+
+ if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ RlmtMode[pAC->Index] != NULL) {
+ if (strcmp(RlmtMode[pAC->Index], "") == 0) {
+ pAC->RlmtMode = 0;
+ } else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
+ pAC->RlmtMode = SK_RLMT_CHECK_LINK;
+ } else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
+ pAC->RlmtMode = SK_RLMT_CHECK_LINK |
+ SK_RLMT_CHECK_LOC_LINK;
+ } else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
+ pAC->RlmtMode = SK_RLMT_CHECK_LINK |
+ SK_RLMT_CHECK_LOC_LINK |
+ SK_RLMT_CHECK_SEG;
+ } else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
+ (pAC->GIni.GIMacsFound == 2)) {
+ pAC->RlmtMode = SK_RLMT_CHECK_LINK;
+ pAC->RlmtNets = 2;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for"
+ " RlmtMode, using default\n",
+ RlmtMode[pAC->Index]);
+ pAC->RlmtMode = 0;
+ }
+ } else {
+ pAC->RlmtMode = 0;
+ }
+
+ /*
+ ** Check the interrupt moderation parameters
+ */
+ if (Moderation[pAC->Index] != NULL) {
+ if (strcmp(Moderation[pAC->Index], "") == 0) {
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
+ } else if (strcmp(Moderation[pAC->Index], "Static") == 0) {
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_STATIC;
+ } else if (strcmp(Moderation[pAC->Index], "Dynamic") == 0) {
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_DYNAMIC;
+ } else if (strcmp(Moderation[pAC->Index], "None") == 0) {
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
+ } else {
+ printk("sk98lin: Illegal value \"%s\" for Moderation.\n"
+ " Disable interrupt moderation.\n",
+ Moderation[pAC->Index]);
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
+ }
+ } else {
+ pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
+ }
+
+ if (Stats[pAC->Index] != NULL) {
+ if (strcmp(Stats[pAC->Index], "Yes") == 0) {
+ pAC->DynIrqModInfo.DisplayStats = SK_TRUE;
+ } else {
+ pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
+ }
+ } else {
+ pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
+ }
+
+ if (ModerationMask[pAC->Index] != NULL) {
+ if (strcmp(ModerationMask[pAC->Index], "Rx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
+ } else if (strcmp(ModerationMask[pAC->Index], "Tx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_ONLY;
+ } else if (strcmp(ModerationMask[pAC->Index], "Sp") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_ONLY;
+ } else if (strcmp(ModerationMask[pAC->Index], "RxSp") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
+ } else if (strcmp(ModerationMask[pAC->Index], "SpRx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
+ } else if (strcmp(ModerationMask[pAC->Index], "RxTx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
+ } else if (strcmp(ModerationMask[pAC->Index], "TxRx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
+ } else if (strcmp(ModerationMask[pAC->Index], "TxSp") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
+ } else if (strcmp(ModerationMask[pAC->Index], "SpTx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
+ } else if (strcmp(ModerationMask[pAC->Index], "RxTxSp") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else if (strcmp(ModerationMask[pAC->Index], "RxSpTx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else if (strcmp(ModerationMask[pAC->Index], "TxRxSp") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else if (strcmp(ModerationMask[pAC->Index], "TxSpRx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else if (strcmp(ModerationMask[pAC->Index], "SpTxRx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else if (strcmp(ModerationMask[pAC->Index], "SpRxTx") == 0) {
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
+ } else { /* some rubbish */
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
+ }
+ } else { /* operator has stated nothing */
+ pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
+ }
+
+ if (AutoSizing[pAC->Index] != NULL) {
+ if (strcmp(AutoSizing[pAC->Index], "On") == 0) {
+ pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
+ } else {
+ pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
+ }
+ } else { /* operator has stated nothing */
+ pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
+ }
+
+ if (IntsPerSec[pAC->Index] != 0) {
+ if ((IntsPerSec[pAC->Index]< C_INT_MOD_IPS_LOWER_RANGE) ||
+ (IntsPerSec[pAC->Index] > C_INT_MOD_IPS_UPPER_RANGE)) {
+ printk("sk98lin: Illegal value \"%d\" for IntsPerSec. (Range: %d - %d)\n"
+ " Using default value of %i.\n",
+ IntsPerSec[pAC->Index],
+ C_INT_MOD_IPS_LOWER_RANGE,
+ C_INT_MOD_IPS_UPPER_RANGE,
+ C_INTS_PER_SEC_DEFAULT);
+ pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
+ } else {
+ pAC->DynIrqModInfo.MaxModIntsPerSec = IntsPerSec[pAC->Index];
+ }
+ } else {
+ pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
+ }
+
+ /*
+ ** Evaluate upper and lower moderation threshold
+ */
+ pAC->DynIrqModInfo.MaxModIntsPerSecUpperLimit =
+ pAC->DynIrqModInfo.MaxModIntsPerSec +
+ (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
+
+ pAC->DynIrqModInfo.MaxModIntsPerSecLowerLimit =
+ pAC->DynIrqModInfo.MaxModIntsPerSec -
+ (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
+
+ pAC->DynIrqModInfo.PrevTimeVal = jiffies; /* initial value */
+
+
+} /* GetConfiguration */
+
+
+/*****************************************************************************
+ *
+ * ProductStr - return a adapter identification string from vpd
+ *
+ * Description:
+ * This function reads the product name string from the vpd area
+ * and puts it the field pAC->DeviceString.
+ *
+ * Returns: N/A
+ */
+static void ProductStr(
+SK_AC *pAC /* pointer to adapter context */
+)
+{
+int StrLen = 80; /* length of the string, defined in SK_AC */
+char Keyword[] = VPD_NAME; /* vpd productname identifier */
+int ReturnCode; /* return code from vpd_read */
+unsigned long Flags;
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
+ &StrLen);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ if (ReturnCode != 0) {
+ /* there was an error reading the vpd data */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
+ ("Error reading VPD data: %d\n", ReturnCode));
+ pAC->DeviceStr[0] = '\0';
+ }
+} /* ProductStr */
+
+/*****************************************************************************
+ *
+ * StartDrvCleanupTimer - Start timer to check for descriptors which
+ * might be placed in descriptor ring, but
+ * havent been handled up to now
+ *
+ * Description:
+ * This function requests a HW-timer fo the Yukon card. The actions to
+ * perform when this timer expires, are located in the SkDrvEvent().
+ *
+ * Returns: N/A
+ */
+static void
+StartDrvCleanupTimer(SK_AC *pAC) {
+ SK_EVPARA EventParam; /* Event struct for timer event */
+
+ SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
+ EventParam.Para32[0] = SK_DRV_RX_CLEANUP_TIMER;
+ SkTimerStart(pAC, pAC->IoBase, &pAC->DrvCleanupTimer,
+ SK_DRV_RX_CLEANUP_TIMER_LENGTH,
+ SKGE_DRV, SK_DRV_TIMER, EventParam);
+}
+
+/*****************************************************************************
+ *
+ * StopDrvCleanupTimer - Stop timer to check for descriptors
+ *
+ * Description:
+ * This function requests a HW-timer fo the Yukon card. The actions to
+ * perform when this timer expires, are located in the SkDrvEvent().
+ *
+ * Returns: N/A
+ */
+static void
+StopDrvCleanupTimer(SK_AC *pAC) {
+ SkTimerStop(pAC, pAC->IoBase, &pAC->DrvCleanupTimer);
+ SK_MEMSET((char *) &pAC->DrvCleanupTimer, 0, sizeof(SK_TIMER));
+}
+
+/****************************************************************************/
+/* functions for common modules *********************************************/
+/****************************************************************************/
+
+
+/*****************************************************************************
+ *
+ * SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
+ *
+ * Description:
+ * This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
+ * is embedded into a socket buff data area.
+ *
+ * Context:
+ * runtime
+ *
+ * Returns:
+ * NULL or pointer to Mbuf.
+ */
+SK_MBUF *SkDrvAllocRlmtMbuf(
+SK_AC *pAC, /* pointer to adapter context */
+SK_IOC IoC, /* the IO-context */
+unsigned BufferSize) /* size of the requested buffer */
+{
+SK_MBUF *pRlmtMbuf; /* pointer to a new rlmt-mbuf structure */
+struct sk_buff *pMsgBlock; /* pointer to a new message block */
+
+ pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
+ if (pMsgBlock == NULL) {
+ return (NULL);
+ }
+ pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
+ skb_reserve(pMsgBlock, sizeof(SK_MBUF));
+ pRlmtMbuf->pNext = NULL;
+ pRlmtMbuf->pOs = pMsgBlock;
+ pRlmtMbuf->pData = pMsgBlock->data; /* Data buffer. */
+ pRlmtMbuf->Size = BufferSize; /* Data buffer size. */
+ pRlmtMbuf->Length = 0; /* Length of packet (<= Size). */
+ return (pRlmtMbuf);
+
+} /* SkDrvAllocRlmtMbuf */
+
+
+/*****************************************************************************
+ *
+ * SkDrvFreeRlmtMbuf - free an RLMT mbuf
+ *
+ * Description:
+ * This routine frees one or more RLMT mbuf(s).
+ *
+ * Context:
+ * runtime
+ *
+ * Returns:
+ * Nothing
+ */
+void SkDrvFreeRlmtMbuf(
+SK_AC *pAC, /* pointer to adapter context */
+SK_IOC IoC, /* the IO-context */
+SK_MBUF *pMbuf) /* size of the requested buffer */
+{
+SK_MBUF *pFreeMbuf;
+SK_MBUF *pNextMbuf;
+
+ pFreeMbuf = pMbuf;
+ do {
+ pNextMbuf = pFreeMbuf->pNext;
+ DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
+ pFreeMbuf = pNextMbuf;
+ } while ( pFreeMbuf != NULL );
+} /* SkDrvFreeRlmtMbuf */
+
+
+/*****************************************************************************
+ *
+ * SkOsGetTime - provide a time value
+ *
+ * Description:
+ * This routine provides a time value. The unit is 1/HZ (defined by Linux).
+ * It is not used for absolute time, but only for time differences.
+ *
+ *
+ * Returns:
+ * Time value
+ */
+SK_U64 SkOsGetTime(SK_AC *pAC)
+{
+ SK_U64 PrivateJiffies;
+ SkOsGetTimeCurrent(pAC, &PrivateJiffies);
+ return PrivateJiffies;
+} /* SkOsGetTime */
+
+
+/*****************************************************************************
+ *
+ * SkPciReadCfgDWord - read a 32 bit value from pci config space
+ *
+ * Description:
+ * This routine reads a 32 bit value from the pci configuration
+ * space.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciReadCfgDWord(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U32 *pVal) /* pointer to store the read value */
+{
+ pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
+ return(0);
+} /* SkPciReadCfgDWord */
+
+
+/*****************************************************************************
+ *
+ * SkPciReadCfgWord - read a 16 bit value from pci config space
+ *
+ * Description:
+ * This routine reads a 16 bit value from the pci configuration
+ * space.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciReadCfgWord(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U16 *pVal) /* pointer to store the read value */
+{
+ pci_read_config_word(pAC->PciDev, PciAddr, pVal);
+ return(0);
+} /* SkPciReadCfgWord */
+
+
+/*****************************************************************************
+ *
+ * SkPciReadCfgByte - read a 8 bit value from pci config space
+ *
+ * Description:
+ * This routine reads a 8 bit value from the pci configuration
+ * space.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciReadCfgByte(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U8 *pVal) /* pointer to store the read value */
+{
+ pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
+ return(0);
+} /* SkPciReadCfgByte */
+
+
+/*****************************************************************************
+ *
+ * SkPciWriteCfgDWord - write a 32 bit value to pci config space
+ *
+ * Description:
+ * This routine writes a 32 bit value to the pci configuration
+ * space.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciWriteCfgDWord(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U32 Val) /* pointer to store the read value */
+{
+ pci_write_config_dword(pAC->PciDev, PciAddr, Val);
+ return(0);
+} /* SkPciWriteCfgDWord */
+
+
+/*****************************************************************************
+ *
+ * SkPciWriteCfgWord - write a 16 bit value to pci config space
+ *
+ * Description:
+ * This routine writes a 16 bit value to the pci configuration
+ * space. The flag PciConfigUp indicates whether the config space
+ * is accesible or must be set up first.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciWriteCfgWord(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U16 Val) /* pointer to store the read value */
+{
+ pci_write_config_word(pAC->PciDev, PciAddr, Val);
+ return(0);
+} /* SkPciWriteCfgWord */
+
+
+/*****************************************************************************
+ *
+ * SkPciWriteCfgWord - write a 8 bit value to pci config space
+ *
+ * Description:
+ * This routine writes a 8 bit value to the pci configuration
+ * space. The flag PciConfigUp indicates whether the config space
+ * is accesible or must be set up first.
+ *
+ * Returns:
+ * 0 - indicate everything worked ok.
+ * != 0 - error indication
+ */
+int SkPciWriteCfgByte(
+SK_AC *pAC, /* Adapter Control structure pointer */
+int PciAddr, /* PCI register address */
+SK_U8 Val) /* pointer to store the read value */
+{
+ pci_write_config_byte(pAC->PciDev, PciAddr, Val);
+ return(0);
+} /* SkPciWriteCfgByte */
+
+
+/*****************************************************************************
+ *
+ * SkDrvEvent - handle driver events
+ *
+ * Description:
+ * This function handles events from all modules directed to the driver
+ *
+ * Context:
+ * Is called under protection of slow path lock.
+ *
+ * Returns:
+ * 0 if everything ok
+ * < 0 on error
+ *
+ */
+int SkDrvEvent(
+SK_AC *pAC, /* pointer to adapter context */
+SK_IOC IoC, /* io-context */
+SK_U32 Event, /* event-id */
+SK_EVPARA Param) /* event-parameter */
+{
+SK_MBUF *pRlmtMbuf; /* pointer to a rlmt-mbuf structure */
+struct sk_buff *pMsg; /* pointer to a message block */
+int FromPort; /* the port from which we switch away */
+int ToPort; /* the port we switch to */
+SK_EVPARA NewPara; /* parameter for further events */
+int Stat;
+unsigned long Flags;
+SK_BOOL DualNet;
+
+ switch (Event) {
+ case SK_DRV_ADAP_FAIL:
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("ADAPTER FAIL EVENT\n"));
+ printk("%s: Adapter failed.\n", pAC->dev[0]->name);
+ /* disable interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ /* cgoos */
+ break;
+ case SK_DRV_PORT_FAIL:
+ FromPort = Param.Para32[0];
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("PORT FAIL EVENT, Port: %d\n", FromPort));
+ if (FromPort == 0) {
+ printk("%s: Port A failed.\n", pAC->dev[0]->name);
+ } else {
+ printk("%s: Port B failed.\n", pAC->dev[1]->name);
+ }
+ /* cgoos */
+ break;
+ case SK_DRV_PORT_RESET: /* SK_U32 PortIdx */
+ /* action list 4 */
+ FromPort = Param.Para32[0];
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("PORT RESET EVENT, Port: %d ", FromPort));
+ NewPara.Para64 = FromPort;
+ SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
+ spin_lock_irqsave(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
+ pAC->dev[Param.Para32[0]]->flags &= ~IFF_RUNNING;
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ /* clear rx ring from received frames */
+ ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
+
+ ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
+ spin_lock_irqsave(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ /* tschilling: Handling of return value inserted. */
+ if (SkGeInitPort(pAC, IoC, FromPort)) {
+ if (FromPort == 0) {
+ printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
+ } else {
+ printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
+ }
+ }
+ SkAddrMcUpdate(pAC,IoC, FromPort);
+ PortReInitBmu(pAC, FromPort);
+ SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
+ ClearAndStartRx(pAC, FromPort);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ break;
+ case SK_DRV_NET_UP: /* SK_U32 PortIdx */
+ /* action list 5 */
+ FromPort = Param.Para32[0];
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("NET UP EVENT, Port: %d ", Param.Para32[0]));
+ /* Mac update */
+ SkAddrMcUpdate(pAC,IoC, FromPort);
+
+ if (DoPrintInterfaceChange) {
+ printk("%s: network connection up using"
+ " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
+
+ /* tschilling: Values changed according to LinkSpeedUsed. */
+ Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
+ if (Stat == SK_LSPEED_STAT_10MBPS) {
+ printk(" speed: 10\n");
+ } else if (Stat == SK_LSPEED_STAT_100MBPS) {
+ printk(" speed: 100\n");
+ } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
+ printk(" speed: 1000\n");
+ } else {
+ printk(" speed: unknown\n");
+ }
+
+
+ Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
+ if (Stat == SK_LMODE_STAT_AUTOHALF ||
+ Stat == SK_LMODE_STAT_AUTOFULL) {
+ printk(" autonegotiation: yes\n");
+ }
+ else {
+ printk(" autonegotiation: no\n");
+ }
+ if (Stat == SK_LMODE_STAT_AUTOHALF ||
+ Stat == SK_LMODE_STAT_HALF) {
+ printk(" duplex mode: half\n");
+ }
+ else {
+ printk(" duplex mode: full\n");
+ }
+ Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
+ if (Stat == SK_FLOW_STAT_REM_SEND ) {
+ printk(" flowctrl: remote send\n");
+ }
+ else if (Stat == SK_FLOW_STAT_LOC_SEND ){
+ printk(" flowctrl: local send\n");
+ }
+ else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
+ printk(" flowctrl: symmetric\n");
+ }
+ else {
+ printk(" flowctrl: none\n");
+ }
+
+ /* tschilling: Check against CopperType now. */
+ if ((pAC->GIni.GICopperType == SK_TRUE) &&
+ (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
+ SK_LSPEED_STAT_1000MBPS)) {
+ Stat = pAC->GIni.GP[FromPort].PMSStatus;
+ if (Stat == SK_MS_STAT_MASTER ) {
+ printk(" role: master\n");
+ }
+ else if (Stat == SK_MS_STAT_SLAVE ) {
+ printk(" role: slave\n");
+ }
+ else {
+ printk(" role: ???\n");
+ }
+ }
+
+ /*
+ Display dim (dynamic interrupt moderation)
+ informations
+ */
+ if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC)
+ printk(" irq moderation: static (%d ints/sec)\n",
+ pAC->DynIrqModInfo.MaxModIntsPerSec);
+ else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC)
+ printk(" irq moderation: dynamic (%d ints/sec)\n",
+ pAC->DynIrqModInfo.MaxModIntsPerSec);
+ else
+ printk(" irq moderation: disabled\n");
+
+
+#ifdef SK_ZEROCOPY
+ if (pAC->ChipsetType)
+#ifdef USE_SK_TX_CHECKSUM
+ printk(" scatter-gather: enabled\n");
+#else
+ printk(" tx-checksum: disabled\n");
+#endif
+ else
+ printk(" scatter-gather: disabled\n");
+#else
+ printk(" scatter-gather: disabled\n");
+#endif
+
+#ifndef USE_SK_RX_CHECKSUM
+ printk(" rx-checksum: disabled\n");
+#endif
+
+ } else {
+ DoPrintInterfaceChange = SK_TRUE;
+ }
+
+ if ((Param.Para32[0] != pAC->ActivePort) &&
+ (pAC->RlmtNets == 1)) {
+ NewPara.Para32[0] = pAC->ActivePort;
+ NewPara.Para32[1] = Param.Para32[0];
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
+ NewPara);
+ }
+
+ /* Inform the world that link protocol is up. */
+ pAC->dev[Param.Para32[0]]->flags |= IFF_RUNNING;
+
+ break;
+ case SK_DRV_NET_DOWN: /* SK_U32 Reason */
+ /* action list 7 */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("NET DOWN EVENT "));
+ if (DoPrintInterfaceChange) {
+ printk("%s: network connection down\n",
+ pAC->dev[Param.Para32[1]]->name);
+ } else {
+ DoPrintInterfaceChange = SK_TRUE;
+ }
+ pAC->dev[Param.Para32[1]]->flags &= ~IFF_RUNNING;
+ break;
+ case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("PORT SWITCH HARD "));
+ case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
+ /* action list 6 */
+ printk("%s: switching to port %c\n", pAC->dev[0]->name,
+ 'A'+Param.Para32[1]);
+ case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
+ FromPort = Param.Para32[0];
+ ToPort = Param.Para32[1];
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("PORT SWITCH EVENT, From: %d To: %d (Pref %d) ",
+ FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
+ NewPara.Para64 = FromPort;
+ SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
+ NewPara.Para64 = ToPort;
+ SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
+ spin_lock_irqsave(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
+ SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
+ SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
+ spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
+ ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
+
+ ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
+ ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
+ spin_lock_irqsave(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
+ pAC->ActivePort = ToPort;
+#if 0
+ SetQueueSizes(pAC);
+#else
+ /* tschilling: New common function with minimum size check. */
+ DualNet = SK_FALSE;
+ if (pAC->RlmtNets == 2) {
+ DualNet = SK_TRUE;
+ }
+
+ if (SkGeInitAssignRamToQueues(
+ pAC,
+ pAC->ActivePort,
+ DualNet)) {
+ spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ printk("SkGeInitAssignRamToQueues failed.\n");
+ break;
+ }
+#endif
+ /* tschilling: Handling of return values inserted. */
+ if (SkGeInitPort(pAC, IoC, FromPort) ||
+ SkGeInitPort(pAC, IoC, ToPort)) {
+ printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
+ }
+ if (Event == SK_DRV_SWITCH_SOFT) {
+ SkMacRxTxEnable(pAC, IoC, FromPort);
+ }
+ SkMacRxTxEnable(pAC, IoC, ToPort);
+ SkAddrSwap(pAC, IoC, FromPort, ToPort);
+ SkAddrMcUpdate(pAC, IoC, FromPort);
+ SkAddrMcUpdate(pAC, IoC, ToPort);
+ PortReInitBmu(pAC, FromPort);
+ PortReInitBmu(pAC, ToPort);
+ SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
+ SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
+ ClearAndStartRx(pAC, FromPort);
+ ClearAndStartRx(pAC, ToPort);
+ spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ break;
+ case SK_DRV_RLMT_SEND: /* SK_MBUF *pMb */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("RLS "));
+ pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
+ pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
+ skb_put(pMsg, pRlmtMbuf->Length);
+ if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
+ pMsg) < 0)
+
+ DEV_KFREE_SKB_ANY(pMsg);
+ break;
+ case SK_DRV_TIMER:
+ if (Param.Para32[0] == SK_DRV_MODERATION_TIMER) {
+ /*
+ ** expiration of the moderation timer implies that
+ ** dynamic moderation is to be applied
+ */
+ SkDimStartModerationTimer(pAC);
+ SkDimModerate(pAC);
+ if (pAC->DynIrqModInfo.DisplayStats) {
+ SkDimDisplayModerationSettings(pAC);
+ }
+ } else if (Param.Para32[0] == SK_DRV_RX_CLEANUP_TIMER) {
+ /*
+ ** check if we need to check for descriptors which
+ ** haven't been handled the last millisecs
+ */
+ StartDrvCleanupTimer(pAC);
+ if (pAC->GIni.GIMacsFound == 2) {
+ ReceiveIrq(pAC, &pAC->RxPort[1], SK_FALSE);
+ }
+ ReceiveIrq(pAC, &pAC->RxPort[0], SK_FALSE);
+ } else {
+ printk("Expiration of unknown timer\n");
+ }
+ break;
+ default:
+ break;
+ }
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
+ ("END EVENT "));
+
+ return (0);
+} /* SkDrvEvent */
+
+
+/*****************************************************************************
+ *
+ * SkErrorLog - log errors
+ *
+ * Description:
+ * This function logs errors to the system buffer and to the console
+ *
+ * Returns:
+ * 0 if everything ok
+ * < 0 on error
+ *
+ */
+void SkErrorLog(
+SK_AC *pAC,
+int ErrClass,
+int ErrNum,
+char *pErrorMsg)
+{
+char ClassStr[80];
+
+ switch (ErrClass) {
+ case SK_ERRCL_OTHER:
+ strcpy(ClassStr, "Other error");
+ break;
+ case SK_ERRCL_CONFIG:
+ strcpy(ClassStr, "Configuration error");
+ break;
+ case SK_ERRCL_INIT:
+ strcpy(ClassStr, "Initialization error");
+ break;
+ case SK_ERRCL_NORES:
+ strcpy(ClassStr, "Out of resources error");
+ break;
+ case SK_ERRCL_SW:
+ strcpy(ClassStr, "internal Software error");
+ break;
+ case SK_ERRCL_HW:
+ strcpy(ClassStr, "Hardware failure");
+ break;
+ case SK_ERRCL_COMM:
+ strcpy(ClassStr, "Communication error");
+ break;
+ }
+ printk(KERN_INFO "%s: -- ERROR --\n Class: %s\n"
+ " Nr: 0x%x\n Msg: %s\n", pAC->dev[0]->name,
+ ClassStr, ErrNum, pErrorMsg);
+
+} /* SkErrorLog */
+
+#ifdef SK_DIAG_SUPPORT
+
+/*****************************************************************************
+ *
+ * SkDrvEnterDiagMode - handles DIAG attach request
+ *
+ * Description:
+ * Notify the kernel to NOT access the card any longer due to DIAG
+ * Deinitialize the Card
+ *
+ * Returns:
+ * int
+ */
+int SkDrvEnterDiagMode(
+SK_AC *pAc) /* pointer to adapter context */
+{
+ DEV_NET *pNet = netdev_priv(pAc->dev[0]);
+ SK_AC *pAC = pNet->pAC;
+
+ SK_MEMCPY(&(pAc->PnmiBackup), &(pAc->PnmiStruct),
+ sizeof(SK_PNMI_STRUCT_DATA));
+
+ pAC->DiagModeActive = DIAG_ACTIVE;
+ if (pAC->BoardLevel > SK_INIT_DATA) {
+ if (pNet->Up) {
+ pAC->WasIfUp[0] = SK_TRUE;
+ pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvDeInitAdapter(pAC, 0); /* performs SkGeClose */
+ } else {
+ pAC->WasIfUp[0] = SK_FALSE;
+ }
+ if (pNet != netdev_priv(pAC->dev[1])) {
+ pNet = netdev_priv(pAC->dev[1]);
+ if (pNet->Up) {
+ pAC->WasIfUp[1] = SK_TRUE;
+ pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvDeInitAdapter(pAC, 1); /* do SkGeClose */
+ } else {
+ pAC->WasIfUp[1] = SK_FALSE;
+ }
+ }
+ pAC->BoardLevel = SK_INIT_DATA;
+ }
+ return(0);
+}
+
+/*****************************************************************************
+ *
+ * SkDrvLeaveDiagMode - handles DIAG detach request
+ *
+ * Description:
+ * Notify the kernel to may access the card again after use by DIAG
+ * Initialize the Card
+ *
+ * Returns:
+ * int
+ */
+int SkDrvLeaveDiagMode(
+SK_AC *pAc) /* pointer to adapter control context */
+{
+ SK_MEMCPY(&(pAc->PnmiStruct), &(pAc->PnmiBackup),
+ sizeof(SK_PNMI_STRUCT_DATA));
+ pAc->DiagModeActive = DIAG_NOTACTIVE;
+ pAc->Pnmi.DiagAttached = SK_DIAG_IDLE;
+ if (pAc->WasIfUp[0] == SK_TRUE) {
+ pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvInitAdapter(pAc, 0); /* first device */
+ }
+ if (pAc->WasIfUp[1] == SK_TRUE) {
+ pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvInitAdapter(pAc, 1); /* second device */
+ }
+ return(0);
+}
+
+/*****************************************************************************
+ *
+ * ParseDeviceNbrFromSlotName - Evaluate PCI device number
+ *
+ * Description:
+ * This function parses the PCI slot name information string and will
+ * retrieve the devcie number out of it. The slot_name maintianed by
+ * linux is in the form of '02:0a.0', whereas the first two characters
+ * represent the bus number in hex (in the sample above this is
+ * pci bus 0x02) and the next two characters the device number (0x0a).
+ *
+ * Returns:
+ * SK_U32: The device number from the PCI slot name
+ */
+
+static SK_U32 ParseDeviceNbrFromSlotName(
+const char *SlotName) /* pointer to pci slot name eg. '02:0a.0' */
+{
+ char *CurrCharPos = (char *) SlotName;
+ int FirstNibble = -1;
+ int SecondNibble = -1;
+ SK_U32 Result = 0;
+
+ while (*CurrCharPos != '\0') {
+ if (*CurrCharPos == ':') {
+ while (*CurrCharPos != '.') {
+ CurrCharPos++;
+ if ( (*CurrCharPos >= '0') &&
+ (*CurrCharPos <= '9')) {
+ if (FirstNibble == -1) {
+ /* dec. value for '0' */
+ FirstNibble = *CurrCharPos - 48;
+ } else {
+ SecondNibble = *CurrCharPos - 48;
+ }
+ } else if ( (*CurrCharPos >= 'a') &&
+ (*CurrCharPos <= 'f') ) {
+ if (FirstNibble == -1) {
+ FirstNibble = *CurrCharPos - 87;
+ } else {
+ SecondNibble = *CurrCharPos - 87;
+ }
+ } else {
+ Result = 0;
+ }
+ }
+
+ Result = FirstNibble;
+ Result = Result << 4; /* first nibble is higher one */
+ Result = Result | SecondNibble;
+ }
+ CurrCharPos++; /* next character */
+ }
+ return (Result);
+}
+
+/****************************************************************************
+ *
+ * SkDrvDeInitAdapter - deinitialize adapter (this function is only
+ * called if Diag attaches to that card)
+ *
+ * Description:
+ * Close initialized adapter.
+ *
+ * Returns:
+ * 0 - on success
+ * error code - on error
+ */
+static int SkDrvDeInitAdapter(
+SK_AC *pAC, /* pointer to adapter context */
+int devNbr) /* what device is to be handled */
+{
+ struct SK_NET_DEVICE *dev;
+
+ dev = pAC->dev[devNbr];
+
+ /* On Linux 2.6 the network driver does NOT mess with reference
+ ** counts. The driver MUST be able to be unloaded at any time
+ ** due to the possibility of hotplug.
+ */
+ if (SkGeClose(dev) != 0) {
+ return (-1);
+ }
+ return (0);
+
+} /* SkDrvDeInitAdapter() */
+
+/****************************************************************************
+ *
+ * SkDrvInitAdapter - Initialize adapter (this function is only
+ * called if Diag deattaches from that card)
+ *
+ * Description:
+ * Close initialized adapter.
+ *
+ * Returns:
+ * 0 - on success
+ * error code - on error
+ */
+static int SkDrvInitAdapter(
+SK_AC *pAC, /* pointer to adapter context */
+int devNbr) /* what device is to be handled */
+{
+ struct SK_NET_DEVICE *dev;
+
+ dev = pAC->dev[devNbr];
+
+ if (SkGeOpen(dev) != 0) {
+ return (-1);
+ }
+
+ /*
+ ** Use correct MTU size and indicate to kernel TX queue can be started
+ */
+ if (SkGeChangeMtu(dev, dev->mtu) != 0) {
+ return (-1);
+ }
+ return (0);
+
+} /* SkDrvInitAdapter */
+
+#endif
+
+#ifdef DEBUG
+/****************************************************************************/
+/* "debug only" section *****************************************************/
+/****************************************************************************/
+
+
+/*****************************************************************************
+ *
+ * DumpMsg - print a frame
+ *
+ * Description:
+ * This function prints frames to the system logfile/to the console.
+ *
+ * Returns: N/A
+ *
+ */
+static void DumpMsg(struct sk_buff *skb, char *str)
+{
+ int msglen;
+
+ if (skb == NULL) {
+ printk("DumpMsg(): NULL-Message\n");
+ return;
+ }
+
+ if (skb->data == NULL) {
+ printk("DumpMsg(): Message empty\n");
+ return;
+ }
+
+ msglen = skb->len;
+ if (msglen > 64)
+ msglen = 64;
+
+ printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
+
+ DumpData((char *)skb->data, msglen);
+
+ printk("------- End of message ---------\n");
+} /* DumpMsg */
+
+
+
+/*****************************************************************************
+ *
+ * DumpData - print a data area
+ *
+ * Description:
+ * This function prints a area of data to the system logfile/to the
+ * console.
+ *
+ * Returns: N/A
+ *
+ */
+static void DumpData(char *p, int size)
+{
+register int i;
+int haddr, addr;
+char hex_buffer[180];
+char asc_buffer[180];
+char HEXCHAR[] = "0123456789ABCDEF";
+
+ addr = 0;
+ haddr = 0;
+ hex_buffer[0] = 0;
+ asc_buffer[0] = 0;
+ for (i=0; i < size; ) {
+ if (*p >= '0' && *p <='z')
+ asc_buffer[addr] = *p;
+ else
+ asc_buffer[addr] = '.';
+ addr++;
+ asc_buffer[addr] = 0;
+ hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
+ haddr++;
+ hex_buffer[haddr] = ' ';
+ haddr++;
+ hex_buffer[haddr] = 0;
+ p++;
+ i++;
+ if (i%16 == 0) {
+ printk("%s %s\n", hex_buffer, asc_buffer);
+ addr = 0;
+ haddr = 0;
+ }
+ }
+} /* DumpData */
+
+
+/*****************************************************************************
+ *
+ * DumpLong - print a data area as long values
+ *
+ * Description:
+ * This function prints a area of data to the system logfile/to the
+ * console.
+ *
+ * Returns: N/A
+ *
+ */
+static void DumpLong(char *pc, int size)
+{
+register int i;
+int haddr, addr;
+char hex_buffer[180];
+char asc_buffer[180];
+char HEXCHAR[] = "0123456789ABCDEF";
+long *p;
+int l;
+
+ addr = 0;
+ haddr = 0;
+ hex_buffer[0] = 0;
+ asc_buffer[0] = 0;
+ p = (long*) pc;
+ for (i=0; i < size; ) {
+ l = (long) *p;
+ hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
+ haddr++;
+ hex_buffer[haddr] = HEXCHAR[l & 0x0f];
+ haddr++;
+ hex_buffer[haddr] = ' ';
+ haddr++;
+ hex_buffer[haddr] = 0;
+ p++;
+ i++;
+ if (i%8 == 0) {
+ printk("%4x %s\n", (i-8)*4, hex_buffer);
+ haddr = 0;
+ }
+ }
+ printk("------------------------\n");
+} /* DumpLong */
+
+#endif
+
+static int __devinit skge_probe_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ SK_AC *pAC;
+ DEV_NET *pNet = NULL;
+ struct net_device *dev = NULL;
+ static int boards_found = 0;
+ int error = -ENODEV;
+
+ if (pci_enable_device(pdev))
+ goto out;
+
+ /* Configure DMA attributes. */
+ if (pci_set_dma_mask(pdev, (u64) 0xffffffffffffffffULL) &&
+ pci_set_dma_mask(pdev, (u64) 0xffffffff))
+ goto out_disable_device;
+
+
+ if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) {
+ printk(KERN_ERR "Unable to allocate etherdev "
+ "structure!\n");
+ goto out_disable_device;
+ }
+
+ pNet = netdev_priv(dev);
+ pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
+ if (!pNet->pAC) {
+ printk(KERN_ERR "Unable to allocate adapter "
+ "structure!\n");
+ goto out_free_netdev;
+ }
+
+ memset(pNet->pAC, 0, sizeof(SK_AC));
+ pAC = pNet->pAC;
+ pAC->PciDev = pdev;
+ pAC->PciDevId = pdev->device;
+ pAC->dev[0] = dev;
+ pAC->dev[1] = dev;
+ sprintf(pAC->Name, "SysKonnect SK-98xx");
+ pAC->CheckQueue = SK_FALSE;
+
+ pNet->Mtu = 1500;
+ pNet->Up = 0;
+ dev->irq = pdev->irq;
+ error = SkGeInitPCI(pAC);
+ if (error) {
+ printk("SKGE: PCI setup failed: %i\n", error);
+ goto out_free_netdev;
+ }
+
+ SET_MODULE_OWNER(dev);
+ dev->open = &SkGeOpen;
+ dev->stop = &SkGeClose;
+ dev->hard_start_xmit = &SkGeXmit;
+ dev->get_stats = &SkGeStats;
+ dev->set_multicast_list = &SkGeSetRxMode;
+ dev->set_mac_address = &SkGeSetMacAddr;
+ dev->do_ioctl = &SkGeIoctl;
+ dev->change_mtu = &SkGeChangeMtu;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = &SkGePollController;
+#endif
+ dev->flags &= ~IFF_RUNNING;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
+
+#ifdef SK_ZEROCOPY
+#ifdef USE_SK_TX_CHECKSUM
+ if (pAC->ChipsetType) {
+ /* Use only if yukon hardware */
+ /* SK and ZEROCOPY - fly baby... */
+ dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ }
+#endif
+#endif
+
+ pAC->Index = boards_found++;
+
+ if (SkGeBoardInit(dev, pAC))
+ goto out_free_netdev;
+
+ /* Register net device */
+ if (register_netdev(dev)) {
+ printk(KERN_ERR "SKGE: Could not register device.\n");
+ goto out_free_resources;
+ }
+
+ /* Print adapter specific string from vpd */
+ ProductStr(pAC);
+ printk("%s: %s\n", dev->name, pAC->DeviceStr);
+
+ /* Print configuration settings */
+ printk(" PrefPort:%c RlmtMode:%s\n",
+ 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
+ (pAC->RlmtMode==0) ? "Check Link State" :
+ ((pAC->RlmtMode==1) ? "Check Link State" :
+ ((pAC->RlmtMode==3) ? "Check Local Port" :
+ ((pAC->RlmtMode==7) ? "Check Segmentation" :
+ ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
+
+ SkGeYellowLED(pAC, pAC->IoBase, 1);
+
+
+ memcpy(&dev->dev_addr, &pAC->Addr.Net[0].CurrentMacAddress, 6);
+
+ SkGeProcCreate(dev);
+
+ pNet->PortNr = 0;
+ pNet->NetNr = 0;
+
+ boards_found++;
+
+ /* More then one port found */
+ if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
+ if ((dev = alloc_etherdev(sizeof(DEV_NET))) == 0) {
+ printk(KERN_ERR "Unable to allocate etherdev "
+ "structure!\n");
+ goto out;
+ }
+
+ pAC->dev[1] = dev;
+ pNet = netdev_priv(dev);
+ pNet->PortNr = 1;
+ pNet->NetNr = 1;
+ pNet->pAC = pAC;
+ pNet->Mtu = 1500;
+ pNet->Up = 0;
+
+ dev->open = &SkGeOpen;
+ dev->stop = &SkGeClose;
+ dev->hard_start_xmit = &SkGeXmit;
+ dev->get_stats = &SkGeStats;
+ dev->set_multicast_list = &SkGeSetRxMode;
+ dev->set_mac_address = &SkGeSetMacAddr;
+ dev->do_ioctl = &SkGeIoctl;
+ dev->change_mtu = &SkGeChangeMtu;
+ dev->flags &= ~IFF_RUNNING;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
+
+#ifdef SK_ZEROCOPY
+#ifdef USE_SK_TX_CHECKSUM
+ if (pAC->ChipsetType) {
+ /* SG and ZEROCOPY - fly baby... */
+ dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ }
+#endif
+#endif
+
+ if (register_netdev(dev)) {
+ printk(KERN_ERR "SKGE: Could not register device.\n");
+ free_netdev(dev);
+ pAC->dev[1] = pAC->dev[0];
+ } else {
+ SkGeProcCreate(dev);
+ memcpy(&dev->dev_addr,
+ &pAC->Addr.Net[1].CurrentMacAddress, 6);
+
+ printk("%s: %s\n", dev->name, pAC->DeviceStr);
+ printk(" PrefPort:B RlmtMode:Dual Check Link State\n");
+ }
+ }
+
+ /* Save the hardware revision */
+ pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
+ (pAC->GIni.GIPciHwRev & 0x0F);
+
+ /* Set driver globals */
+ pAC->Pnmi.pDriverFileName = DRIVER_FILE_NAME;
+ pAC->Pnmi.pDriverReleaseDate = DRIVER_REL_DATE;
+
+ memset(&pAC->PnmiBackup, 0, sizeof(SK_PNMI_STRUCT_DATA));
+ memcpy(&pAC->PnmiBackup, &pAC->PnmiStruct, sizeof(SK_PNMI_STRUCT_DATA));
+
+ pci_set_drvdata(pdev, dev);
+ return 0;
+
+ out_free_resources:
+ FreeResources(dev);
+ out_free_netdev:
+ free_netdev(dev);
+ out_disable_device:
+ pci_disable_device(pdev);
+ out:
+ return error;
+}
+
+static void __devexit skge_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ DEV_NET *pNet = netdev_priv(dev);
+ SK_AC *pAC = pNet->pAC;
+ struct net_device *otherdev = pAC->dev[1];
+
+ SkGeProcRemove(dev);
+ unregister_netdev(dev);
+ if (otherdev != dev)
+ SkGeProcRemove(otherdev);
+
+ SkGeYellowLED(pAC, pAC->IoBase, 0);
+
+ if (pAC->BoardLevel == SK_INIT_RUN) {
+ SK_EVPARA EvPara;
+ unsigned long Flags;
+
+ /* board is still alive */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ EvPara.Para32[0] = 0;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ EvPara.Para32[0] = 1;
+ EvPara.Para32[1] = -1;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+ /* disable interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ SkGeDeInit(pAC, pAC->IoBase);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ pAC->BoardLevel = SK_INIT_DATA;
+ /* We do NOT check here, if IRQ was pending, of course*/
+ }
+
+ if (pAC->BoardLevel == SK_INIT_IO) {
+ /* board is still alive */
+ SkGeDeInit(pAC, pAC->IoBase);
+ pAC->BoardLevel = SK_INIT_DATA;
+ }
+
+ FreeResources(dev);
+ free_netdev(dev);
+ if (otherdev != dev)
+ free_netdev(otherdev);
+ kfree(pAC);
+}
+
+static struct pci_device_id skge_pci_tbl[] = {
+ { PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_SYSKONNECT, 0x4300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_SYSKONNECT, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_DLINK, 0x4c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_MARVELL, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+#if 0 /* don't handle Yukon2 cards at the moment -- mlindner@syskonnect.de */
+ { PCI_VENDOR_ID_MARVELL, 0x4360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_MARVELL, 0x4361, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+#endif
+ { PCI_VENDOR_ID_MARVELL, 0x5005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_CNET, 0x434e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_LINKSYS, 0x1064, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, skge_pci_tbl);
+
+static struct pci_driver skge_driver = {
+ .name = "sk98lin",
+ .id_table = skge_pci_tbl,
+ .probe = skge_probe_one,
+ .remove = __devexit_p(skge_remove_one),
+};
+
+static int __init skge_init(void)
+{
+ int error;
+
+ pSkRootDir = proc_mkdir(SKRootName, proc_net);
+ if (pSkRootDir)
+ pSkRootDir->owner = THIS_MODULE;
+
+ error = pci_register_driver(&skge_driver);
+ if (error)
+ proc_net_remove(SKRootName);
+ return error;
+}
+
+static void __exit skge_exit(void)
+{
+ pci_unregister_driver(&skge_driver);
+ proc_net_remove(SKRootName);
+
+}
+
+module_init(skge_init);
+module_exit(skge_exit);