patch-2.3.29 linux/drivers/net/sk98lin/skge.c
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- Lines: 3677
- Date:
Tue Nov 23 10:15:42 1999
- Orig file:
v2.3.28/linux/drivers/net/sk98lin/skge.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.3.28/linux/drivers/net/sk98lin/skge.c linux/drivers/net/sk98lin/skge.c
@@ -0,0 +1,3676 @@
+/******************************************************************************
+ *
+ * Name: skge.c
+ * Project: GEnesis, PCI Gigabit Ethernet Adapter
+ * Version: $Revision: 1.25 $
+ * Date: $Date: 1999/10/07 14:47:52 $
+ * Purpose: The main driver source module
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (C)Copyright 1998,1999 SysKonnect,
+ * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
+ *
+ * Driver for SysKonnect Gigabit Ethernet Server Adapters:
+ *
+ * SK-9841 (single link 1000Base-LX)
+ * SK-9842 (dual link 1000Base-LX)
+ * SK-9843 (single link 1000Base-SX)
+ * SK-9844 (dual link 1000Base-SX)
+ * SK-9821 (single link 1000Base-T)
+ * SK-9822 (dual link 1000Base-T)
+ *
+ * Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
+ * SysKonnects GEnesis Solaris driver
+ * Author: Christoph Goos (cgoos@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.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * History:
+ *
+ * $Log: skge.c,v $
+ * Revision 1.25 1999/10/07 14:47:52 cgoos
+ * Changed 984x to 98xx.
+ *
+ * Revision 1.24 1999/09/30 07:21:01 cgoos
+ * Removed SK_RLMT_SLOW_LOOKAHEAD option.
+ * Giving spanning tree packets also to OS now.
+ *
+ * Revision 1.23 1999/09/29 07:36:50 cgoos
+ * Changed assignment for IsBc/IsMc.
+ *
+ * Revision 1.22 1999/09/28 12:57:09 cgoos
+ * Added CheckQueue also to Single-Port-ISR.
+ *
+ * Revision 1.21 1999/09/28 12:42:41 cgoos
+ * Changed parameter strings for RlmtMode.
+ *
+ * Revision 1.20 1999/09/28 12:37:57 cgoos
+ * Added CheckQueue for fast delivery of RLMT frames.
+ *
+ * Revision 1.19 1999/09/16 07:57:25 cgoos
+ * Copperfield changes.
+ *
+ * Revision 1.18 1999/09/03 13:06:30 cgoos
+ * Fixed RlmtMode=CheckSeg bug: wrong DEV_KFREE_SKB in RLMT_SEND caused
+ * double allocated skb's.
+ * FrameStat in ReceiveIrq was accessed via wrong Rxd.
+ * Queue size for async. standby Tx queue was zero.
+ * FillRxLimit of 0 could cause problems with ReQueue, changed to 1.
+ * Removed debug output of checksum statistic.
+ *
+ * Revision 1.17 1999/08/11 13:55:27 cgoos
+ * Transmit descriptor polling was not reenabled after SkGePortInit.
+ *
+ * Revision 1.16 1999/07/27 15:17:29 cgoos
+ * Added some "\n" in output strings (removed while debuging...).
+ *
+ * Revision 1.15 1999/07/23 12:09:30 cgoos
+ * Performance optimization, rx checksumming, large frame support.
+ *
+ * Revision 1.14 1999/07/14 11:26:27 cgoos
+ * Removed Link LED settings (now in RLMT).
+ * Added status output at NET UP.
+ * Fixed SMP problems with Tx and SWITCH running in parallel.
+ * Fixed return code problem at RLMT_SEND event.
+ *
+ * Revision 1.13 1999/04/07 10:11:42 cgoos
+ * Fixed Single Port problems.
+ * Fixed Multi-Adapter problems.
+ * Always display startup string.
+ *
+ * Revision 1.12 1999/03/29 12:26:37 cgoos
+ * Reversed locking to fine granularity.
+ * Fixed skb double alloc problem (caused by incorrect xmit return code).
+ * Enhanced function descriptions.
+ *
+ * Revision 1.11 1999/03/15 13:10:51 cgoos
+ * Changed device identifier in output string to ethX.
+ *
+ * Revision 1.10 1999/03/15 12:12:34 cgoos
+ * Changed copyright notice.
+ *
+ * Revision 1.9 1999/03/15 12:10:17 cgoos
+ * Changed locking to one driver lock.
+ * Added check of SK_AC-size (for consistency with library).
+ *
+ * Revision 1.8 1999/03/08 11:44:02 cgoos
+ * Fixed missing dev->tbusy in SkGeXmit.
+ * Changed large frame (jumbo) buffer number.
+ * Added copying of short frames.
+ *
+ * Revision 1.7 1999/03/04 13:26:57 cgoos
+ * Fixed spinlock calls for SMP.
+ *
+ * Revision 1.6 1999/03/02 09:53:51 cgoos
+ * Added descriptor revertion for big endian machines.
+ *
+ * Revision 1.5 1999/03/01 08:50:59 cgoos
+ * Fixed SkGeChangeMtu.
+ * Fixed pci config space accesses.
+ *
+ * Revision 1.4 1999/02/18 15:48:44 cgoos
+ * Corrected some printk's.
+ *
+ * Revision 1.3 1999/02/18 12:45:55 cgoos
+ * Changed SK_MAX_CARD_PARAM to default 16
+ *
+ * Revision 1.2 1999/02/18 10:55:32 cgoos
+ * Removed SkGeDrvTimeStamp function.
+ * Printing "ethX:" before adapter type at adapter init.
+ *
+ *
+ * 10-Feb-1999 cg Created, based on Linux' acenic.c, 3c59x.c and
+ * SysKonnects GEnesis Solaris driver
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * 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/version.h>
+ * <linux/types.h>
+ * <linux/kernel.h>
+ * <linux/string.h>
+ * <linux/errno.h>
+ * <linux/ioport.h>
+ * <linux/malloc.h>
+ * <linux/interrupt.h>
+ * <linux/pci.h>
+ * <asm/byteorder.h>
+ * <asm/bitops.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"
+ *
+ ******************************************************************************/
+
+static const char SysKonnectFileId[] = "@(#)" __FILE__ " (C) SysKonnect.";
+static const char SysKonnectBuildNumber[] =
+ "@(#)SK-BUILD: 3.02 (19991111) PL: 01";
+
+#include <linux/module.h>
+
+#include "h/skdrv1st.h"
+#include "h/skdrv2nd.h"
+
+/* defines ******************************************************************/
+
+#define BOOT_STRING "sk98lin: Network Device Driver v3.02\n" \
+ "Copyright (C) 1999 SysKonnect"
+
+#define VER_STRING "3.02"
+
+
+/* for debuging on x86 only */
+/* #define BREAKPOINT() asm(" int $3"); */
+
+/* use of a transmit complete interrupt */
+#define USE_TX_COMPLETE
+
+/* use interrupt moderation (for tx complete only) */
+// #define USE_INT_MOD
+#define INTS_PER_SEC 1000
+
+/*
+ * threshold for copying small receive frames
+ * set to 0 to avoid copying, set to 9001 to copy all frames
+ */
+#define SK_COPY_THRESHOLD 200
+
+/* 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 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 RLMT_MODE {"CheckLink", }
+
+
+#define DEV_KFREE_SKB(skb) dev_kfree_skb(skb);
+
+/* function prototypes ******************************************************/
+static void FreeResources(struct net_device *dev);
+int init_module(void);
+void cleanup_module(void);
+static int SkGeBoardInit(struct 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 void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
+static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
+static int SkGeOpen(struct net_device *dev);
+static int SkGeClose(struct net_device *dev);
+static int SkGeXmit(struct sk_buff *skb, struct net_device *dev);
+static int SkGeSetMacAddr(struct net_device *dev, void *p);
+static void SkGeSetRxMode(struct net_device *dev);
+static struct net_device_stats *SkGeStats(struct net_device *dev);
+static int SkGeIoctl(struct 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*);
+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 void SetQueueSizes(SK_AC *pAC);
+static int SkGeChangeMtu(struct net_device *dev, int new_mtu);
+static void PortReInitBmu(SK_AC*, int);
+static int SkGeIocMib(SK_AC*, unsigned int, int);
+#ifdef DEBUG
+static void DumpMsg(struct sk_buff*, char*);
+static void DumpData(char*, int);
+static void DumpLong(char*, int);
+#endif
+
+
+/* global variables *********************************************************/
+static const char *BootString = BOOT_STRING;
+static struct net_device *root_dev = NULL;
+static int probed __initdata = 0;
+
+/* local variables **********************************************************/
+static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
+static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
+
+/*****************************************************************************
+ *
+ * skge_probe - find all SK-98xx adapters
+ *
+ * Description:
+ * This function scans the PCI bus for SK-98xx adapters. Resources for
+ * each adapter are allocated and the adapter is brought into Init 1
+ * state.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+int __init skge_probe (struct net_device *dev)
+{
+int boards_found = 0;
+int version_disp = 0;
+SK_AC *pAC;
+struct pci_dev *pdev = NULL;
+unsigned int base_address;
+
+ if (probed)
+ return -ENODEV;
+ probed++;
+
+ /* display driver info */
+ if (!version_disp)
+ {
+ /* set display flag to TRUE so that */
+ /* we only display this string ONCE */
+ version_disp = 1;
+ printk("%s\n", BootString);
+ }
+
+ if (!pci_present()) /* is PCI support present? */
+ return -ENODEV;
+
+ while((pdev = pci_find_class(PCI_CLASS_NETWORK_ETHERNET << 8, pdev)))
+ {
+ dev = NULL;
+
+ if (pdev->vendor != PCI_VENDOR_ID_SYSKONNECT ||
+ pdev->device != PCI_DEVICE_ID_SYSKONNECT_GE) {
+ continue;
+ }
+ dev = init_etherdev(dev, sizeof(SK_AC));
+
+ if (dev == NULL){
+ printk(KERN_ERR "Unable to allocate etherdev "
+ "structure!\n");
+ break;
+ }
+
+ if (!dev->priv)
+ dev->priv = kmalloc(sizeof(SK_AC), GFP_KERNEL);
+ if (dev->priv == NULL){
+ printk(KERN_ERR "Unable to allocate adapter "
+ "structure!\n");
+ break;
+ }
+
+
+ memset(dev->priv, 0, sizeof(SK_AC));
+
+ pAC = dev->priv;
+ pAC->PciDev = *pdev;
+ pAC->PciDevId = pdev->device;
+ pAC->dev = dev;
+ sprintf(pAC->Name, "SysKonnect SK-98xx");
+ pAC->CheckQueue = SK_FALSE;
+
+ dev->irq = pdev->irq;
+
+ 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;
+
+ /*
+ * Dummy value.
+ */
+ dev->base_addr = 42;
+
+ pci_set_master(pdev);
+
+ base_address = pdev->resource[0].start;
+
+#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 /* BIG ENDIAN */
+
+ /*
+ * Remap the regs into kernel space.
+ */
+
+
+ pAC->IoBase = (char*)ioremap(base_address, 0x4000);
+ if (!pAC->IoBase){
+ printk(KERN_ERR "%s: Unable to map I/O register, "
+ "SK 98xx No. %i will be disabled.\n",
+ dev->name, boards_found);
+ break;
+ }
+ pAC->Index = boards_found;
+
+ if (SkGeBoardInit(dev, pAC)) {
+ FreeResources(dev);
+ continue;
+ }
+
+ memcpy((caddr_t) &dev->dev_addr,
+ (caddr_t) &pAC->Addr.CurrentMacAddress, 6);
+
+ boards_found++;
+
+ /*
+ * This is bollocks, but we need to tell the net-init
+ * code that it shall go for the next device.
+ */
+#ifndef MODULE
+ dev->base_addr = 0;
+#endif
+ }
+
+ /*
+ * If we're at this point we're going through skge_probe() for
+ * the first time. Return success (0) if we've initialized 1
+ * or more boards. Otherwise, return failure (-ENODEV).
+ */
+
+#ifdef MODULE
+ return boards_found;
+#else
+ if (boards_found > 0)
+ return 0;
+ else
+ return -ENODEV;
+#endif
+} /* skge_probe */
+
+
+/*****************************************************************************
+ *
+ * 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 net_device *dev)
+{
+SK_U32 AllocFlag;
+SK_AC *pAC;
+
+ if (dev->priv) {
+ pAC = (SK_AC*) dev->priv;
+ AllocFlag = pAC->AllocFlag;
+ if (AllocFlag & SK_ALLOC_IRQ) {
+ free_irq(dev->irq, dev);
+ }
+ if (pAC->IoBase) {
+ iounmap(pAC->IoBase);
+ }
+ if (pAC->pDescrMem) {
+ BoardFreeMem(pAC);
+ }
+ }
+
+} /* FreeResources */
+
+
+#ifdef MODULE
+
+MODULE_AUTHOR("Christoph Goos <cgoos@syskonnect.de>");
+MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
+MODULE_PARM(AutoNeg_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(AutoNeg_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(DupCap_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(DupCap_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(FlowCtrl_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(FlowCtrl_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(Role_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(Role_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(PrefPort, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+MODULE_PARM(RlmtMode, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
+/* not used, just there because every driver should have them: */
+MODULE_PARM(options, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "i");
+MODULE_PARM(debug, "i");
+
+#endif // MODULE
+
+
+#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 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
+
+
+#ifdef MODULE
+
+static int debug = 0; /* not used */
+static int options[SK_MAX_CARD_PARAM] = {0, }; /* not used */
+
+
+/*****************************************************************************
+ *
+ * init_module - module initialization function
+ *
+ * Description:
+ * Very simple, only call skge_probe and return approriate result.
+ *
+ * Returns:
+ * 0, if everything is ok
+ * !=0, on error
+ */
+int init_module(void)
+{
+int cards;
+
+ root_dev = NULL;
+
+ /* just to avoid warnings ... */
+ debug = 0;
+ options[0] = 0;
+
+ cards = skge_probe(NULL);
+ if (cards == 0) {
+ printk("No adapter found\n");
+ }
+ return cards ? 0 : -ENODEV;
+} /* init_module */
+
+
+/*****************************************************************************
+ *
+ * cleanup_module - module unload function
+ *
+ * Description:
+ * Disable adapter if it is still running, free resources,
+ * free device struct.
+ *
+ * Returns: N/A
+ */
+void cleanup_module(void)
+{
+SK_AC *pAC;
+struct net_device *next;
+unsigned long Flags;
+SK_EVPARA EvPara;
+
+ while (root_dev) {
+ pAC = (SK_AC*)root_dev->priv;
+ next = pAC->Next;
+
+ root_dev->tbusy = 1;
+ SkGeYellowLED(pAC, pAC->IoBase, 0);
+
+ if(pAC->BoardLevel == 2) {
+ /* board is still alive */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ 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 = 0;
+ /* We do NOT check here, if IRQ was pending, of course*/
+ }
+
+ if(pAC->BoardLevel == 1) {
+ /* board is still alive */
+ SkGeDeInit(pAC, pAC->IoBase);
+ pAC->BoardLevel = 0;
+ }
+
+ FreeResources(root_dev);
+
+ root_dev->get_stats = NULL;
+ /*
+ * otherwise unregister_netdev calls get_stats with
+ * invalid IO ... :-(
+ */
+ unregister_netdev(root_dev);
+ kfree(root_dev);
+
+ root_dev = next;
+ }
+}
+#endif /* cleanup_module */
+
+
+/*****************************************************************************
+ *
+ * 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 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_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);
+
+ /* level 0 init common modules here */
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ /* Does a RESET on board ...*/
+ if (SkGeInit(pAC, pAC->IoBase, 0) != 0) {
+ printk("HWInit (0) failed.\n");
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ return(-EAGAIN);
+ }
+ SkI2cInit( pAC, pAC->IoBase, 0);
+ SkEventInit(pAC, pAC->IoBase, 0);
+ SkPnmiInit( pAC, pAC->IoBase, 0);
+ SkAddrInit( pAC, pAC->IoBase, 0);
+ SkRlmtInit( pAC, pAC->IoBase, 0);
+ SkTimerInit(pAC, pAC->IoBase, 0);
+
+ pAC->BoardLevel = 0;
+ 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);
+
+ GetConfiguration(pAC);
+
+ /* level 1 init common modules here (HW init) */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
+ printk("HWInit (1) failed.\n");
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ return(-EAGAIN);
+ }
+ SkI2cInit( pAC, pAC->IoBase, 1);
+ SkEventInit(pAC, pAC->IoBase, 1);
+ SkPnmiInit( pAC, pAC->IoBase, 1);
+ SkAddrInit( pAC, pAC->IoBase, 1);
+ SkRlmtInit( pAC, pAC->IoBase, 1);
+ SkTimerInit(pAC, pAC->IoBase, 1);
+
+ pAC->BoardLevel = 1;
+ 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 "%s: illegal number of ports: %d\n",
+ dev->name, pAC->GIni.GIMacsFound);
+ return -EAGAIN;
+ }
+ if (Ret) {
+ printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
+ dev->name, 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);
+ pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
+
+ BoardInitMem(pAC);
+
+ SetQueueSizes(pAC);
+
+ /* Print adapter specific string from vpd */
+ ProductStr(pAC);
+ printk("%s: %s\n", dev->name, pAC->DeviceStr);
+
+ SkGeYellowLED(pAC, pAC->IoBase, 1);
+
+ /*
+ * Register the device here
+ */
+ pAC->Next = root_dev;
+ root_dev = dev;
+
+ 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 = kmalloc(AllocLength, GFP_KERNEL);
+ if (pDescrMem == NULL) {
+ return (SK_FALSE);
+ }
+ pAC->pDescrMem = pDescrMem;
+ memset(pDescrMem, 0, AllocLength);
+ /* Descriptors need 8 byte alignment */
+ BusAddr = virt_to_bus(pDescrMem);
+ if (BusAddr & (DESCR_ALIGN-1)) {
+ pDescrMem += DESCR_ALIGN - (BusAddr & (DESCR_ALIGN-1));
+ }
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ if ((virt_to_bus(pDescrMem) & ~0xFFFFFFFFULL) !=
+ (virt_to_bus(pDescrMem+TX_RING_SIZE) & ~0xFFFFFFFFULL)) {
+ pDescrMem += TX_RING_SIZE;
+ }
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("TX%d/A: pDescrMem: %lX, PhysDescrMem: %lX\n",
+ i, (unsigned long) pDescrMem,
+ (unsigned long)virt_to_bus(pDescrMem)));
+ pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
+ pAC->TxPort[i][0].VTxDescrRing = virt_to_bus(pDescrMem);
+ pDescrMem += TX_RING_SIZE;
+
+ if ((virt_to_bus(pDescrMem) & ~0xFFFFFFFFULL) !=
+ (virt_to_bus(pDescrMem+RX_RING_SIZE) & ~0xFFFFFFFFULL)) {
+ pDescrMem += RX_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)(virt_to_bus(pDescrMem))));
+ pAC->RxPort[i].pRxDescrRing = pDescrMem;
+ pAC->RxPort[i].VRxDescrRing = virt_to_bus(pDescrMem);
+ pDescrMem += 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)
+{
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("BoardFreeMem\n"));
+ kfree(pAC->pDescrMem);
+} /* 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 on 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]+
+ TX_Q_CUR_DESCR_LOW,
+ (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]+
+ TX_Q_DESCR_HIGH,
+ (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]+RX_Q_CUR_DESCR_LOW,
+ (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
+ pAC->RxPort[PortIndex].pRxDescrRing +
+ pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
+ SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH,
+ (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 void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
+{
+struct net_device *dev = (struct net_device *)dev_id;
+SK_AC *pAC;
+SK_U32 IntSrc; /* interrupts source register contents */
+
+ pAC = (SK_AC*) dev->priv;
+
+ /*
+ * Check and process if its our interrupt
+ */
+ SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
+ if (IntSrc == 0) {
+ return;
+ }
+
+ while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
+#if 0 /* software irq currently not used */
+ if (IntSrc & IRQ_SW) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("Software IRQ\n"));
+ }
+#endif
+ if (IntSrc & IRQ_EOF_RX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX1 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[0]);
+ SK_PNMI_CNT_RX_INTR(pAC);
+ }
+ if (IntSrc & IRQ_EOF_RX2) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX2 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[1]);
+ SK_PNMI_CNT_RX_INTR(pAC);
+ }
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IRQ_EOF_AS_TX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 & IRQ_EOF_AS_TX2) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX2 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 & IRQ_EOF_SY_TX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 & IRQ_EOF_SY_TX2) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX2 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 /* 0 */
+#endif /* USE_TX_COMPLETE */
+
+ /* do all IO at once */
+ if (IntSrc & IRQ_EOF_RX1)
+ ClearAndStartRx(pAC, 0);
+ if (IntSrc & IRQ_EOF_RX2)
+ ClearAndStartRx(pAC, 1);
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IRQ_EOF_AS_TX1)
+ ClearTxIrq(pAC, 0, TX_PRIO_LOW);
+ if (IntSrc & IRQ_EOF_AS_TX2)
+ ClearTxIrq(pAC, 1, TX_PRIO_LOW);
+#endif
+ SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
+ } /* while (IntSrc & IRQ_MASK != 0) */
+
+ if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
+ ("SPECIAL IRQ\n"));
+ 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)
+ */
+ ReceiveIrq(pAC, &pAC->RxPort[pAC->ActivePort]);
+// ReceiveIrq(pAC, &pAC->RxPort[1]);
+
+#if 0
+// #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ 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);
+
+ 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 */
+ spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+
+ spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
+#endif /* 0 */
+#endif /* USE_TX_COMPLETE */
+
+ /* IRQ is processed - Enable IRQs again*/
+ SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
+
+ return;
+} /* 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 void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
+{
+struct net_device *dev = (struct net_device *)dev_id;
+SK_AC *pAC;
+SK_U32 IntSrc; /* interrupts source register contents */
+
+ pAC = (SK_AC*) dev->priv;
+
+ /*
+ * Check and process if its our interrupt
+ */
+ SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
+ if (IntSrc == 0) {
+ return;
+ }
+
+ while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
+#if 0 /* software irq currently not used */
+ if (IntSrc & IRQ_SW) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("Software IRQ\n"));
+ }
+#endif
+ if (IntSrc & IRQ_EOF_RX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF RX1 IRQ\n"));
+ ReceiveIrq(pAC, &pAC->RxPort[0]);
+ SK_PNMI_CNT_RX_INTR(pAC);
+ }
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IRQ_EOF_AS_TX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF AS TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 & IRQ_EOF_SY_TX1) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_INT_SRC,
+ ("EOF SY TX1 IRQ\n"));
+ SK_PNMI_CNT_TX_INTR(pAC);
+ 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 /* 0 */
+#endif /* USE_TX_COMPLETE */
+
+ /* do all IO at once */
+ if (IntSrc & IRQ_EOF_RX1)
+ ClearAndStartRx(pAC, 0);
+#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ if (IntSrc & IRQ_EOF_AS_TX1)
+ ClearTxIrq(pAC, 0, TX_PRIO_LOW);
+#endif
+ SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
+ } /* while (IntSrc & IRQ_MASK != 0) */
+
+ if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
+ ("SPECIAL IRQ\n"));
+ 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)
+ */
+ ReceiveIrq(pAC, &pAC->RxPort[0]);
+
+#if 0
+// #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
+ 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 */
+ spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+ FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
+ spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
+
+#endif /* 0 */
+#endif /* USE_TX_COMPLETE */
+
+ /* IRQ is processed - Enable IRQs again*/
+ SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
+
+ return;
+} /* SkGeIsrOnePort */
+
+
+/****************************************************************************
+ *
+ * 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 net_device *dev)
+{
+SK_AC *pAC; /* pointer to adapter context struct */
+unsigned int Flags; /* for spin lock */
+int i;
+SK_EVPARA EvPara; /* an event parameter union */
+
+ pAC = (SK_AC*) dev->priv;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
+
+ if (pAC->BoardLevel == 0) {
+ /* level 1 init common modules here */
+ if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
+ printk("%s: HWInit(1) failed\n", pAC->dev->name);
+ return (-1);
+ }
+ SkI2cInit (pAC, pAC->IoBase, 1);
+ SkEventInit (pAC, pAC->IoBase, 1);
+ SkPnmiInit (pAC, pAC->IoBase, 1);
+ SkAddrInit (pAC, pAC->IoBase, 1);
+ SkRlmtInit (pAC, pAC->IoBase, 1);
+ SkTimerInit (pAC, pAC->IoBase, 1);
+ pAC->BoardLevel = 1;
+ }
+
+ /* level 2 init modules here */
+ SkGeInit (pAC, pAC->IoBase, 2);
+ SkI2cInit (pAC, pAC->IoBase, 2);
+ SkEventInit (pAC, pAC->IoBase, 2);
+ SkPnmiInit (pAC, pAC->IoBase, 2);
+ SkAddrInit (pAC, pAC->IoBase, 2);
+ SkRlmtInit (pAC, pAC->IoBase, 2);
+ SkTimerInit (pAC, pAC->IoBase, 2);
+ pAC->BoardLevel = 2;
+
+ 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);
+
+#ifdef USE_INT_MOD
+// moderate only TX complete interrupts (these are not time critical)
+#define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2)
+ {
+ unsigned long ModBase;
+ ModBase = 53125000 / INTS_PER_SEC;
+ SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
+ SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
+ SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
+ }
+#endif
+
+ /* enable Interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
+ SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ if (pAC->RlmtMode != 0) {
+ EvPara.Para32[0] = pAC->RlmtMode;
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
+ EvPara);
+ }
+ SkEventDispatcher(pAC, pAC->IoBase);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ dev->tbusy = 0;
+ dev->interrupt = 0;
+ dev->start = 1;
+
+ MOD_INC_USE_COUNT;
+
+ 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 net_device *dev)
+{
+SK_AC *pAC;
+unsigned int Flags; /* for spin lock */
+int i;
+SK_EVPARA EvPara;
+
+ dev->start = 0;
+ set_bit(0, (void*)&dev->tbusy);
+
+ pAC = (SK_AC*) dev->priv;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
+
+ /*
+ * Clear multicast table, promiscuous mode ....
+ */
+ SkAddrMcClear(pAC, pAC->IoBase, pAC->ActivePort, 0);
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
+ SK_PROM_MODE_NONE);
+
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ /* disable interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ 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 = 0;
+
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ /* clear all descriptor rings */
+ ReceiveIrq(pAC, &pAC->RxPort[i]);
+ ClearRxRing(pAC, &pAC->RxPort[i]);
+ ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
+ }
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeClose: done "));
+
+ MOD_DEC_USE_COUNT;
+
+ 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 net_device *dev)
+{
+SK_AC *pAC;
+int Rc; /* return code of XmitFrame */
+
+ pAC = (SK_AC*) dev->priv;
+
+ Rc = XmitFrame(pAC, &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW], skb);
+
+ if (Rc == 0) {
+ /* transmitter out of resources */
+ set_bit(0, (void*) &dev->tbusy);
+ return (0);
+ }
+ 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 (not used)
+ */
+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 */
+unsigned int Flags;
+SK_U64 PhysAddr;
+int BytesSend;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("X"));
+
+ spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
+
+ if (pTxPort->TxdRingFree == 0) {
+ /* no enough free descriptors in ring at the moment */
+ FreeTxDescriptors(pAC, pTxPort);
+ if (pTxPort->TxdRingFree == 0) {
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ SK_PNMI_CNT_NO_TX_BUF(pAC);
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_TX_PROGRESS,
+ ("XmitFrame failed\n"));
+ /* this message can not be sent now */
+ DEV_KFREE_SKB(pMessage);
+ return (0);
+ }
+ }
+ /* advance head counter behind descriptor needed for this frame */
+ pTxd = pTxPort->pTxdRingHead;
+ pTxPort->pTxdRingHead = pTxd->pNextTxd;
+ pTxPort->TxdRingFree--;
+ /* the needed descriptor is reserved now */
+
+ /*
+ * everything allocated ok, so add buffer to descriptor
+ */
+
+#ifdef SK_DUMP_TX
+ DumpMsg(pMessage, "XmitFrame");
+#endif
+
+ /* set up descriptor and CONTROL dword */
+ PhysAddr = virt_to_bus(pMessage->data);
+ pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+ pTxd->pMBuf = pMessage;
+ pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF |
+ TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE |
+#ifdef USE_TX_COMPLETE
+ TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len;
+#else
+ TX_CTRL_EOF | pMessage->len;
+#endif
+
+ if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
+ /* previous descriptor already done, so give tx start cmd */
+ /* StartTx(pAC, pTxPort->HwAddr); */
+ SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
+ }
+ pTxPort->pTxdRingPrev = pTxd;
+
+
+ BytesSend = pMessage->len;
+ /* after releasing the lock, the skb may be immidiately freed */
+ if (pTxPort->TxdRingFree != 0) {
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ return (BytesSend);
+ }
+ else {
+ /* ring full: set tbusy on return */
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+ return (0);
+ }
+} /* XmitFrame */
+
+
+/*****************************************************************************
+ *
+ * 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 */
+
+ pNewTail = pTxPort->pTxdRingTail;
+ pTxd = pNewTail;
+
+ /*
+ * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame
+ * or TX_CTRL_OWN_BMU bit set in any frame
+ */
+ while (1) {
+ Control = pTxd->TBControl;
+ if ((Control & TX_CTRL_SOFTWARE) == 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;
+ pAC->dev->tbusy = 0;
+ return;
+ }
+ if (Control & TX_CTRL_OWN_BMU) {
+ pTxPort->pTxdRingTail = pTxd;
+ if (pTxPort->TxdRingFree > 0) {
+ pAC->dev->tbusy = 0;
+ }
+ return;
+ }
+
+ DEV_KFREE_SKB(pTxd->pMBuf); /* free message */
+ pTxPort->TxdRingFree++;
+ pTxd->TBControl &= ~TX_CTRL_SOFTWARE;
+ 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 int 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->name));
+ SK_PNMI_CNT_NO_RX_BUF(pAC);
+ 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 = virt_to_bus(pMsgBlock->data);
+ pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
+ pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
+ pRxd->pMBuf = pMsgBlock;
+ pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
+ RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | 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 = RX_CTRL_OWN_BMU | RX_CTRL_STF |
+ RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | 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 */
+{
+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 */
+SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */
+SK_EVPARA EvPara; /* an event parameter union */
+int PortIndex = pRxPort->PortIndex;
+unsigned int Offset;
+unsigned int NumBytes;
+unsigned int ForRlmt;
+SK_BOOL IsBc;
+SK_BOOL IsMc;
+SK_U32 FrameStat;
+unsigned short Csum1;
+unsigned short Csum2;
+unsigned short Type;
+int Result;
+
+rx_start:
+ /* do forever; exit if RX_CTRL_OWN_BMU found */
+ while (pRxPort->RxdRingFree < pAC->RxDescrPerRing) {
+ pRxd = pRxPort->pRxdRingHead;
+
+ Control = pRxd->RBControl;
+
+ /* check if this descriptor is ready */
+ if ((Control & RX_CTRL_OWN_BMU) != 0) {
+ /* this descriptor is not yet ready */
+ FillRxRing(pAC, pRxPort);
+ return;
+ }
+
+ /* get length of frame and check it */
+ FrameLength = Control & RX_CTRL_LEN_MASK;
+ if (FrameLength > pAC->RxBufSize)
+ goto rx_failed;
+
+ /* check for STF and EOF */
+ if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) !=
+ (RX_CTRL_STF | RX_CTRL_EOF))
+ goto rx_failed;
+
+ /* here we have a complete frame in the ring */
+ pMsg = pRxd->pMBuf;
+
+ /*
+ * if short frame then copy data to reduce memory waste
+ */
+ if (FrameLength < SK_COPY_THRESHOLD) {
+ pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC);
+ if (pNewMsg == NULL) {
+ /* use original skb */
+ /* set length in message */
+ skb_put(pMsg, FrameLength);
+ }
+ else {
+ /* alloc new skb and copy data */
+ skb_reserve(pNewMsg, 2);
+ skb_put(pNewMsg, FrameLength);
+ eth_copy_and_sum(pNewMsg, pMsg->data,
+ FrameLength, 0);
+ ReQueueRxBuffer(pAC, pRxPort, pMsg,
+ pRxd->VDataHigh, pRxd->VDataLow);
+ pMsg = pNewMsg;
+ }
+ }
+ else {
+ /* set length in message */
+ skb_put(pMsg, FrameLength);
+ /* hardware checksum */
+ Type = ntohs(*((short*)&pMsg->data[12]));
+ if (Type == 0x800) {
+ Csum1= pRxd->TcpSums & 0xffff;
+ Csum2=(pRxd->TcpSums >> 16) & 0xffff;
+ if ((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) {
+ Result = SkCsGetReceiveInfo(pAC,
+ &pMsg->data[14],
+ Csum1, Csum2);
+ 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;
+ }
+ } /* checksum calculation valid */
+ } /* IP frame */
+ } /* frame > SK_COPY_TRESHOLD */
+
+ FrameStat = pRxd->FrameStat;
+ pRxd = pRxd->pNextRxd;
+ pRxPort->pRxdRingHead = pRxd;
+ pRxPort->RxdRingFree ++;
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,
+ ("Received frame of length %d on port %d\n",
+ FrameLength, PortIndex));
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,
+ ("Number of free rx descriptors: %d\n",
+ pRxPort->RxdRingFree));
+
+ if ((Control & RX_CTRL_STAT_VALID) == RX_CTRL_STAT_VALID &&
+ (FrameStat &
+ (XMR_FS_ANY_ERR | XMR_FS_1L_VLAN | XMR_FS_2L_VLAN))
+ == 0) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,("V"));
+ ForRlmt = SK_RLMT_RX_PROTOCOL;
+ IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
+ SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
+ IsBc, &Offset, &NumBytes);
+ if (NumBytes != 0) {
+ IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
+ SK_RLMT_LOOKAHEAD(pAC, PortIndex,
+ &pMsg->data[Offset],
+ IsBc, IsMc, &ForRlmt);
+ }
+ if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
+ /* send up only frames from active port */
+ if (PortIndex == pAC->ActivePort) {
+ /* frame for upper layer */
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
+ SK_DBGCAT_DRV_RX_PROGRESS,
+ ("U"));
+#ifdef DUMP_RX
+ DumpMsg(pMsg, "Rx");
+#endif
+ pMsg->dev = pAC->dev;
+ pMsg->protocol = eth_type_trans(pMsg,
+ pAC->dev);
+ SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
+ FrameLength);
+ netif_rx(pMsg);
+ pAC->dev->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);
+ 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->flags &
+ (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
+ (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
+ SK_RLMT_RX_PROTOCOL) {
+ pMsg->dev = pAC->dev;
+ pMsg->protocol = eth_type_trans(pMsg,
+ pAC->dev);
+ netif_rx(pMsg);
+ pAC->dev->last_rx = jiffies;
+ }
+ else {
+ DEV_KFREE_SKB(pMsg);
+ }
+
+ } /* if packet for rlmt */
+ } /* if valid frame */
+ else {
+ /* there is a receive error in this frame */
+ if ((FrameStat & XMR_FS_1L_VLAN) != 0) {
+ printk("%s: Received frame"
+ " with VLAN Level 1 header, check"
+ " switch configuration\n",
+ pAC->dev->name);
+ }
+ if ((FrameStat & XMR_FS_2L_VLAN) != 0) {
+ printk("%s: Received frame"
+ " with VLAN Level 2 header, check"
+ " switch configuration\n",
+ pAC->dev->name);
+ }
+ 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));
+ DEV_KFREE_SKB(pMsg);
+ }
+ } /* while */
+ FillRxRing(pAC, pRxPort);
+ /* do not start if called from Close */
+ if (pAC->BoardLevel > 0) {
+ 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));
+ DEV_KFREE_SKB(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]+RX_Q_CTRL,
+ RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF);
+} /* 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]+TX_Q_CTRL,
+ TX_Q_CTRL_CLR_I_EOF);
+} /* 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 int Flags;
+
+ if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
+ return;
+ }
+ spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
+ pRxd = pRxPort->pRxdRingHead;
+ do {
+ if (pRxd->pMBuf != NULL) {
+ DEV_KFREE_SKB(pRxd->pMBuf);
+ pRxd->pMBuf = NULL;
+ }
+ pRxd->RBControl &= RX_CTRL_OWN_BMU;
+ 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 int Flags;
+
+ spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
+ pTxd = pTxPort->pTxdRingHead;
+ for (i=0; i<pAC->TxDescrPerRing; i++) {
+ pTxd->TBControl &= ~TX_CTRL_OWN_BMU;
+ pTxd = pTxd->pNextTxd;
+ }
+ FreeTxDescriptors(pAC, pTxPort);
+ spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
+} /* ClearTxRing */
+
+
+/*****************************************************************************
+ *
+ * SetQueueSizes - configure the sizes of rx and tx queues
+ *
+ * Description:
+ * This function assigns the sizes for active and passive port
+ * to the appropriate HWinit structure variables.
+ * The passive port(s) get standard values, all remaining RAM
+ * is given to the active port.
+ * The queue sizes are in kbyte and must be multiple of 8.
+ * The limits for the number of buffers filled into the rx rings
+ * is also set in this routine.
+ *
+ * Returns:
+ * none
+ */
+static void SetQueueSizes(
+SK_AC *pAC) /* pointer to the adapter context */
+{
+int StandbyRam; /* adapter RAM used for a standby port */
+int RemainingRam; /* adapter RAM available for the active port */
+int RxRam; /* RAM used for the active port receive queue */
+int i; /* loop counter */
+
+ StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE +
+ SK_RLMT_STANDBY_QXSSIZE;
+ RemainingRam = pAC->GIni.GIRamSize -
+ (pAC->GIni.GIMacsFound-1) * StandbyRam;
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE;
+ pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE;
+ pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE;
+ }
+ RxRam = (RemainingRam * 8 / 10) & ~7;
+ pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam;
+ pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0;
+ pAC->GIni.GP[pAC->ActivePort].PXAQSize =
+ (RemainingRam - RxRam) & ~7;
+ pAC->RxQueueSize = RxRam;
+ pAC->TxSQueueSize = 0;
+ pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("queue sizes settings - rx:%d txA:%d txS:%d\n",
+ pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize));
+
+ for (i=0; i<SK_MAX_MACS; i++) {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing;
+ }
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
+ }
+ /*
+ * Do not set the Limit to 0, because this could cause
+ * wrap around with ReQueue'ed buffers (a buffer could
+ * be requeued in the same position, made accessable to
+ * the hardware, and the hardware could change its
+ * contents!
+ */
+ pAC->RxPort[pAC->ActivePort].RxFillLimit = 1;
+
+#ifdef DEBUG
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
+ ("i: %d, RxQSize: %d, PXSQsize: %d, PXAQSize: %d\n",
+ i,
+ pAC->GIni.GP[i].PRxQSize,
+ pAC->GIni.GP[i].PXSQSize,
+ pAC->GIni.GP[i].PXAQSize));
+ }
+#endif
+} /* SetQueueSizes */
+
+
+/*****************************************************************************
+ *
+ * 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 net_device *dev, void *p)
+{
+SK_AC *pAC = (SK_AC*) dev->priv;
+struct sockaddr *addr = p;
+unsigned int Flags;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeSetMacAddr starts now...\n"));
+ if(dev->start) {
+ return -EBUSY;
+ }
+ memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
+
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ 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 net_device *dev)
+{
+SK_AC *pAC;
+struct dev_mc_list *pMcList;
+int i;
+unsigned int Flags;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeSetRxMode starts now... "));
+ pAC = (SK_AC*) dev->priv;
+
+ 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, pAC->ActivePort,
+ 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, pAC->ActivePort,
+ SK_PROM_MODE_ALL_MC);
+ } else {
+ SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
+ SK_PROM_MODE_NONE);
+ SkAddrMcClear(pAC, pAC->IoBase, pAC->ActivePort, 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, pAC->ActivePort,
+ (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, pAC->ActivePort);
+
+ }
+ 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 net_device *dev, int NewMtu)
+{
+SK_AC *pAC;
+unsigned int Flags;
+int i;
+SK_EVPARA EvPara;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeChangeMtu starts now...\n"));
+
+ pAC = (SK_AC*) dev->priv;
+ if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
+ return -EINVAL;
+ }
+
+ pAC->RxBufSize = NewMtu + 32;
+ dev->mtu = NewMtu;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("New MTU: %d\n", NewMtu));
+
+ /* prevent reconfiguration while changing the MTU */
+
+ /* disable interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, 0);
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ spin_lock_irqsave(
+ &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags);
+ }
+ pAC->dev->tbusy = 1;
+
+ /*
+ * adjust number of rx buffers allocated
+ */
+ if (NewMtu > 1500) {
+ /* use less rx buffers */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ if (i == pAC->ActivePort)
+ pAC->RxPort[i].RxFillLimit =
+ pAC->RxDescrPerRing - 100;
+ else
+ pAC->RxPort[i].RxFillLimit =
+ pAC->RxDescrPerRing - 10;
+
+ }
+ }
+ else {
+ /* use normal anoumt of rx buffers */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ if (i == pAC->ActivePort)
+ pAC->RxPort[i].RxFillLimit = 1;
+ else
+ pAC->RxPort[i].RxFillLimit =
+ pAC->RxDescrPerRing - 100;
+ }
+ }
+
+ SkGeDeInit(pAC, pAC->IoBase);
+
+ /*
+ * enable/disable hardware support for long frames
+ */
+ if (NewMtu > 1500) {
+ pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ pAC->GIni.GP[i].PRxCmd =
+ XM_RX_STRIP_FCS | XM_RX_LENERR_OK;
+ }
+ }
+ else {
+ pAC->GIni.GIPortUsage = SK_RED_LINK;
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ pAC->GIni.GP[i].PRxCmd =
+ XM_RX_STRIP_FCS | XM_RX_LENERR_OK;
+ }
+ }
+
+ SkGeInit( pAC, pAC->IoBase, 1);
+ SkI2cInit( pAC, pAC->IoBase, 1);
+ SkEventInit(pAC, pAC->IoBase, 1);
+ SkPnmiInit( pAC, pAC->IoBase, 1);
+ SkAddrInit( pAC, pAC->IoBase, 1);
+ SkRlmtInit( pAC, pAC->IoBase, 1);
+ SkTimerInit(pAC, pAC->IoBase, 1);
+
+ SkGeInit( pAC, pAC->IoBase, 2);
+ SkI2cInit( pAC, pAC->IoBase, 2);
+ SkEventInit(pAC, pAC->IoBase, 2);
+ SkPnmiInit( pAC, pAC->IoBase, 2);
+ SkAddrInit( pAC, pAC->IoBase, 2);
+ SkRlmtInit( pAC, pAC->IoBase, 2);
+ SkTimerInit(pAC, pAC->IoBase, 2);
+
+ /*
+ * clear and reinit the rx rings here
+ */
+ for (i=0; i<pAC->GIni.GIMacsFound; i++) {
+ ReceiveIrq(pAC, &pAC->RxPort[i]);
+ 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);
+
+#ifdef USE_INT_MOD
+ {
+ unsigned long ModBase;
+ ModBase = 53125000 / INTS_PER_SEC;
+ SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
+ SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
+ SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
+ }
+#endif
+
+ pAC->dev->tbusy = 0;
+ for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
+ spin_unlock_irqrestore(
+ &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags);
+ }
+
+ /* enable Interrupts */
+ SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
+ SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
+
+ SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
+ SkEventDispatcher(pAC, pAC->IoBase);
+
+
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+
+ return 0;
+} /* 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 net_device *dev)
+{
+SK_AC *pAC = (SK_AC*) dev->priv;
+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 int Flags; /* for spin lock */
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeStats starts now...\n"));
+ pPnmiStruct = &pAC->PnmiStruct;
+ 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);
+ spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
+ 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;
+ pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
+ 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 net_device *dev, struct ifreq *rq, int cmd)
+{
+SK_AC *pAC;
+SK_GE_IOCTL Ioctl;
+unsigned int Err = 0;
+int Size;
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeIoctl starts now...\n"));
+ pAC = (SK_AC*) dev->priv;
+
+ 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(pAC, 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;
+ 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(
+SK_AC *pAC, /* pointer to the adapter context */
+unsigned int Size, /* length of ioctl data */
+int mode) /* flag for set/preset */
+{
+unsigned int Flags; /* for spin lock */
+
+ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
+ ("SkGeIocMib starts now...\n"));
+ /* access MIB */
+ spin_lock_irqsave(&pAC->SlowPathLock, Flags);
+ switch(mode) {
+ case SK_IOCTL_GETMIB:
+ SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
+ break;
+ case SK_IOCTL_PRESETMIB:
+ SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
+ break;
+ case SK_IOCTL_SETMIB:
+ SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
+ 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 */
+int AutoNeg; /* auto negotiation off (0) or on (1) */
+int DuplexCap; /* duplex capabilities (0=both, 1=full, 2=half */
+int MSMode; /* master / slave mode selection */
+SK_BOOL AutoSet;
+SK_BOOL DupSet;
+/*
+ * 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
+
+ /* settings for port A */
+ AutoNeg = AN_SENS; /* default: do auto Sense */
+ 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("%s: Illegal value for AutoNeg_A\n",
+ pAC->dev->name);
+ }
+
+ 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("%s: Illegal value for DupCap_A\n",
+ pAC->dev->name);
+ }
+
+ /* check for illegal combinations */
+ if (AutoSet && AutoNeg==AN_SENS && DupSet) {
+ printk("%s, Port A: DuplexCapabilities"
+ " ignored using Sense mode\n", pAC->dev->name);
+ }
+ if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
+ printk("%s, Port A: Illegal combination"
+ " of values AutoNeg. and DuplexCap.\n Using "
+ "Full Duplex\n", pAC->dev->name);
+
+ DuplexCap = DC_FULL;
+ }
+ if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
+ DuplexCap = DC_FULL;
+ }
+
+ if (!AutoSet && DupSet) {
+ printk("%s, Port A: Duplex setting not"
+ " possible in\n default AutoNegotiation mode"
+ " (Sense).\n Using AutoNegotiation On\n",
+ pAC->dev->name);
+ AutoNeg = AN_ON;
+ }
+
+ /* set the desired mode */
+ pAC->GIni.GP[0].PLinkModeConf =
+ Capabilities[AutoNeg][DuplexCap];
+
+ pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
+ if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ FlowCtrl_A[pAC->Index] != NULL) {
+ if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
+ }
+ else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
+ pAC->GIni.GP[0].PFlowCtrlMode =
+ SK_FLOW_MODE_SYM_OR_REM;
+ }
+ else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
+ pAC->GIni.GP[0].PFlowCtrlMode =
+ SK_FLOW_MODE_SYMMETRIC;
+ }
+ else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
+ pAC->GIni.GP[0].PFlowCtrlMode =
+ SK_FLOW_MODE_LOC_SEND;
+ }
+ else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
+ pAC->GIni.GP[0].PFlowCtrlMode =
+ SK_FLOW_MODE_NONE;
+ }
+ else printk("Illegal value for FlowCtrl_A\n");
+ }
+ if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!=
+ SK_FLOW_MODE_NONE) {
+ printk("%s, Port A: FlowControl"
+ " impossible without AutoNegotiation,"
+ " disabled\n", pAC->dev->name);
+ pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ }
+
+ MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
+ if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Role_A[pAC->Index] != NULL) {
+ if (strcmp(Role_A[pAC->Index],"")==0) {
+ }
+ 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("%s: Illegal value for Role_A\n",
+ pAC->dev->name);
+ }
+ pAC->GIni.GP[0].PMSMode = MSMode;
+
+
+ /* settings for port B */
+ 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("Illegal value for AutoNeg_B\n");
+ }
+
+ 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("Illegal value for DupCap_B\n");
+ }
+
+ /* check for illegal combinations */
+ if (AutoSet && AutoNeg==AN_SENS && DupSet) {
+ printk("%s, Port B: DuplexCapabilities"
+ " ignored using Sense mode\n", pAC->dev->name);
+ }
+ if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
+ printk("%s, Port B: Illegal combination"
+ " of values AutoNeg. and DuplexCap.\n Using "
+ "Full Duplex\n", pAC->dev->name);
+
+ DuplexCap = DC_FULL;
+ }
+ if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
+ DuplexCap = DC_FULL;
+ }
+
+ if (!AutoSet && DupSet) {
+ printk("%s, Port B: Duplex setting not"
+ " possible in\n default AutoNegotiation mode"
+ " (Sense).\n Using AutoNegotiation On\n",
+ pAC->dev->name);
+ AutoNeg = AN_ON;
+ }
+
+ /* set the desired mode */
+ pAC->GIni.GP[1].PLinkModeConf =
+ Capabilities[AutoNeg][DuplexCap];
+
+ pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
+ if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ FlowCtrl_B[pAC->Index] != NULL) {
+ if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
+ }
+ else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
+ pAC->GIni.GP[1].PFlowCtrlMode =
+ SK_FLOW_MODE_SYM_OR_REM;
+ }
+ else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
+ pAC->GIni.GP[1].PFlowCtrlMode =
+ SK_FLOW_MODE_SYMMETRIC;
+ }
+ else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
+ pAC->GIni.GP[1].PFlowCtrlMode =
+ SK_FLOW_MODE_LOC_SEND;
+ }
+ else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
+ pAC->GIni.GP[1].PFlowCtrlMode =
+ SK_FLOW_MODE_NONE;
+ }
+ else printk("Illegal value for FlowCtrl_B\n");
+ }
+ if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!=
+ SK_FLOW_MODE_NONE) {
+ printk("%s, Port B: FlowControl"
+ " impossible without AutoNegotiation,"
+ " disabled\n", pAC->dev->name);
+ pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE;
+ }
+
+ MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
+ if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
+ Role_B[pAC->Index] != NULL) {
+ if (strcmp(Role_B[pAC->Index],"")==0) {
+ }
+ 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("%s: Illegal value for Role_B\n",
+ pAC->dev->name);
+ }
+ pAC->GIni.GP[1].PMSMode = MSMode;
+
+
+ /* 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.MacPreferred = -1; /* auto */
+ pAC->Rlmt.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.MacPreferred = Port;
+ pAC->Rlmt.PrefPort = Port;
+ }
+ else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
+ /*
+ * do not set ActivePort here, thus a port
+ * switch is issued after net up.
+ */
+ Port = 1;
+ pAC->Rlmt.MacPreferred = Port;
+ pAC->Rlmt.PrefPort = Port;
+ }
+ else printk("%s: Illegal value for PrefPort\n",
+ pAC->dev->name);
+ }
+
+ 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 {
+ printk("%s: Illegal value for"
+ " RlmtMode, using default\n", pAC->dev->name);
+ pAC->RlmtMode = 0;
+ }
+ }
+ else {
+ pAC->RlmtMode = 0;
+ }
+} /* 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 int 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 */
+
+
+
+
+/****************************************************************************/
+/* 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(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)
+{
+ return jiffies;
+} /* 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 int Flags;
+
+ 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->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->name);
+ } else {
+ printk("%s: Port B failed.\n", pAC->dev->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);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ /* clear rx ring from received frames */
+ ReceiveIrq(pAC, &pAC->RxPort[FromPort]);
+
+ ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
+ spin_lock_irqsave(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+ SkGeInitPort(pAC, IoC, FromPort);
+ 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]));
+ printk("%s: network connection up using"
+ " port %c\n", pAC->dev->name, 'A'+Param.Para32[0]);
+ printk(" speed: 1000\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");
+ }
+ if (pAC->GIni.GP[FromPort].PhyType != SK_PHY_XMAC) {
+ 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");
+ }
+ }
+
+ if (Param.Para32[0] != pAC->ActivePort) {
+ NewPara.Para32[0] = pAC->ActivePort;
+ NewPara.Para32[1] = Param.Para32[0];
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
+ NewPara);
+ }
+ 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 "));
+ printk("%s: network connection down\n", pAC->dev->name);
+ 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->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.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_irqsave(
+ &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
+ SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
+ SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
+ spin_unlock_irqrestore(
+ &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
+ Flags);
+
+ ReceiveIrq(pAC, &pAC->RxPort[FromPort]); /* clears rx ring */
+ ReceiveIrq(pAC, &pAC->RxPort[ToPort]); /* 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_irqsave(
+ &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
+ pAC->ActivePort = ToPort;
+ SetQueueSizes(pAC);
+ SkGeInitPort(pAC, IoC, FromPort);
+ SkGeInitPort(pAC, IoC, ToPort);
+ if (Event == SK_DRV_SWITCH_SOFT) {
+ SkXmRxTxEnable(pAC, IoC, FromPort);
+ }
+ SkXmRxTxEnable(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_irqrestore(
+ &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
+ 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);
+ XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
+ pMsg);
+ 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->name,
+ ClassStr, ErrNum, pErrorMsg);
+
+} /* SkErrorLog */
+
+#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 /* DEBUG */
+
+/*
+ * Local variables:
+ * compile-command: "make"
+ * End:
+ */
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)