drivers/net/sk98lin/skge.c

   1 /******************************************************************************
   2  *
   3  * Name:        skge.c
   4  * Project:     GEnesis, PCI Gigabit Ethernet Adapter
   5  * Version:     $Revision: 1.45 $
   6  * Date:        $Date: 2004/02/12 14:41:02 $
   7  * Purpose:     The main driver source module
   8  *
   9  ******************************************************************************/
  10
  11 /******************************************************************************
  12  *
  13  *      (C)Copyright 1998-2002 SysKonnect GmbH.
  14  *      (C)Copyright 2002-2003 Marvell.
  15  *
  16  *      Driver for Marvell Yukon chipset and SysKonnect Gigabit Ethernet
  17  *      Server Adapters.
  18  *
  19  *      Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
  20  *      SysKonnects GEnesis Solaris driver
  21  *      Author: Christoph Goos (cgoos@syskonnect.de)
  22  *              Mirko Lindner (mlindner@syskonnect.de)
  23  *
  24  *      Address all question to: linux@syskonnect.de
  25  *
  26  *      The technical manual for the adapters is available from SysKonnect's
  27  *      web pages: www.syskonnect.com
  28  *      Goto "Support" and search Knowledge Base for "manual".
  29  *
  30  *      This program is free software; you can redistribute it and/or modify
  31  *      it under the terms of the GNU General Public License as published by
  32  *      the Free Software Foundation; either version 2 of the License, or
  33  *      (at your option) any later version.
  34  *
  35  *      The information in this file is provided "AS IS" without warranty.
  36  *
  37  ******************************************************************************/
  38
  39 /******************************************************************************
  40  *
  41  * Possible compiler options (#define xxx / -Dxxx):
  42  *
  43  *      debugging can be enable by changing SK_DEBUG_CHKMOD and
  44  *      SK_DEBUG_CHKCAT in makefile (described there).
  45  *
  46  ******************************************************************************/
  47
  48 /******************************************************************************
  49  *
  50  * Description:
  51  *
  52  *      This is the main module of the Linux GE driver.
  53  *
  54  *      All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h
  55  *      are part of SysKonnect's COMMON MODULES for the SK-98xx adapters.
  56  *      Those are used for drivers on multiple OS', so some thing may seem
  57  *      unnecessary complicated on Linux. Please do not try to 'clean up'
  58  *      them without VERY good reasons, because this will make it more
  59  *      difficult to keep the Linux driver in synchronisation with the
  60  *      other versions.
  61  *
  62  * Include file hierarchy:
  63  *
  64  *      <linux/module.h>
  65  *
  66  *      "h/skdrv1st.h"
  67  *              <linux/types.h>
  68  *              <linux/kernel.h>
  69  *              <linux/string.h>
  70  *              <linux/errno.h>
  71  *              <linux/ioport.h>
  72  *              <linux/slab.h>
  73  *              <linux/interrupt.h>
  74  *              <linux/pci.h>
  75  *              <linux/bitops.h>
  76  *              <asm/byteorder.h>
  77  *              <asm/io.h>
  78  *              <linux/netdevice.h>
  79  *              <linux/etherdevice.h>
  80  *              <linux/skbuff.h>
  81  *          those three depending on kernel version used:
  82  *              <linux/bios32.h>
  83  *              <linux/init.h>
  84  *              <asm/uaccess.h>
  85  *              <net/checksum.h>
  86  *
  87  *              "h/skerror.h"
  88  *              "h/skdebug.h"
  89  *              "h/sktypes.h"
  90  *              "h/lm80.h"
  91  *              "h/xmac_ii.h"
  92  *
  93  *      "h/skdrv2nd.h"
  94  *              "h/skqueue.h"
  95  *              "h/skgehwt.h"
  96  *              "h/sktimer.h"
  97  *              "h/ski2c.h"
  98  *              "h/skgepnmi.h"
  99  *              "h/skvpd.h"
 100  *              "h/skgehw.h"
 101  *              "h/skgeinit.h"
 102  *              "h/skaddr.h"
 103  *              "h/skgesirq.h"
 104  *              "h/skrlmt.h"
 105  *
 106  ******************************************************************************/
 107
 108 #include        "h/skversion.h"
 109
 110 #include        <linux/module.h>
 111 #include        <linux/moduleparam.h>
 112 #include        <linux/init.h>
 113 #include        <linux/dma-mapping.h>
 114 #include        <linux/ip.h>
 115
 116 #include        "h/skdrv1st.h"
 117 #include        "h/skdrv2nd.h"
 118
 119 /*******************************************************************************
 120  *
 121  * Defines
 122  *
 123  ******************************************************************************/
 124
 125 /* for debuging on x86 only */
 126 /* #define BREAKPOINT() asm(" int $3"); */
 127
 128 /* use the transmit hw checksum driver functionality */
 129 #define USE_SK_TX_CHECKSUM
 130
 131 /* use the receive hw checksum driver functionality */
 132 #define USE_SK_RX_CHECKSUM
 133
 134 /* use the scatter-gather functionality with sendfile() */
 135 #define SK_ZEROCOPY
 136
 137 /* use of a transmit complete interrupt */
 138 #define USE_TX_COMPLETE
 139
 140 /*
 141  * threshold for copying small receive frames
 142  * set to 0 to avoid copying, set to 9001 to copy all frames
 143  */
 144 #define SK_COPY_THRESHOLD       50
 145
 146 /* number of adapters that can be configured via command line params */
 147 #define SK_MAX_CARD_PARAM       16
 148
 149
 150
 151 /*
 152  * use those defines for a compile-in version of the driver instead
 153  * of command line parameters
 154  */
 155 // #define LINK_SPEED_A {"Auto", }
 156 // #define LINK_SPEED_B {"Auto", }
 157 // #define AUTO_NEG_A   {"Sense", }
 158 // #define AUTO_NEG_B   {"Sense", }
 159 // #define DUP_CAP_A    {"Both", }
 160 // #define DUP_CAP_B    {"Both", }
 161 // #define FLOW_CTRL_A  {"SymOrRem", }
 162 // #define FLOW_CTRL_B  {"SymOrRem", }
 163 // #define ROLE_A       {"Auto", }
 164 // #define ROLE_B       {"Auto", }
 165 // #define PREF_PORT    {"A", }
 166 // #define CON_TYPE     {"Auto", }
 167 // #define RLMT_MODE    {"CheckLinkState", }
 168
 169 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
 170 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
 171 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
 172
 173
 174 /* Set blink mode*/
 175 #define OEM_CONFIG_VALUE (      SK_ACT_LED_BLINK | \
 176                                 SK_DUP_LED_NORMAL | \
 177                                 SK_LED_LINK100_ON)
 178
 179
 180 /* Isr return value */
 181 #define SkIsrRetVar     irqreturn_t
 182 #define SkIsrRetNone    IRQ_NONE
 183 #define SkIsrRetHandled IRQ_HANDLED
 184
 185
 186 /*******************************************************************************
 187  *
 188  * Local Function Prototypes
 189  *
 190  ******************************************************************************/
 191
 192 static void     FreeResources(struct SK_NET_DEVICE *dev);
 193 static int      SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
 194 static SK_BOOL  BoardAllocMem(SK_AC *pAC);
 195 static void     BoardFreeMem(SK_AC *pAC);
 196 static void     BoardInitMem(SK_AC *pAC);
 197 static void     SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, int*, SK_BOOL);
 198 static SkIsrRetVar      SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
 199 static SkIsrRetVar      SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
 200 static int      SkGeOpen(struct SK_NET_DEVICE *dev);
 201 static int      SkGeClose(struct SK_NET_DEVICE *dev);
 202 static int      SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 203 static int      SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
 204 static void     SkGeSetRxMode(struct SK_NET_DEVICE *dev);
 205 static struct   net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
 206 static int      SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
 207 static void     GetConfiguration(SK_AC*);
 208 static int      XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
 209 static void     FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
 210 static void     FillRxRing(SK_AC*, RX_PORT*);
 211 static SK_BOOL  FillRxDescriptor(SK_AC*, RX_PORT*);
 212 static void     ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
 213 static void     ClearAndStartRx(SK_AC*, int);
 214 static void     ClearTxIrq(SK_AC*, int, int);
 215 static void     ClearRxRing(SK_AC*, RX_PORT*);
 216 static void     ClearTxRing(SK_AC*, TX_PORT*);
 217 static int      SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
 218 static void     PortReInitBmu(SK_AC*, int);
 219 static int      SkGeIocMib(DEV_NET*, unsigned int, int);
 220 static int      SkGeInitPCI(SK_AC *pAC);
 221 static void     StartDrvCleanupTimer(SK_AC *pAC);
 222 static void     StopDrvCleanupTimer(SK_AC *pAC);
 223 static int      XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
 224
 225 #ifdef SK_DIAG_SUPPORT
 226 static SK_U32   ParseDeviceNbrFromSlotName(const char *SlotName);
 227 static int      SkDrvInitAdapter(SK_AC *pAC, int devNbr);
 228 static int      SkDrvDeInitAdapter(SK_AC *pAC, int devNbr);
 229 #endif
 230
 231 /*******************************************************************************
 232  *
 233  * Extern Function Prototypes
 234  *
 235  ******************************************************************************/
 236 extern void SkDimEnableModerationIfNeeded(SK_AC *pAC);
 237 extern void SkDimDisplayModerationSettings(SK_AC *pAC);
 238 extern void SkDimStartModerationTimer(SK_AC *pAC);
 239 extern void SkDimModerate(SK_AC *pAC);
 240 extern void SkGeBlinkTimer(unsigned long data);
 241
 242 #ifdef DEBUG
 243 static void     DumpMsg(struct sk_buff*, char*);
 244 static void     DumpData(char*, int);
 245 static void     DumpLong(char*, int);
 246 #endif
 247
 248 /* global variables *********************************************************/
 249 static SK_BOOL DoPrintInterfaceChange = SK_TRUE;
 250 extern  struct ethtool_ops SkGeEthtoolOps;
 251
 252 /* local variables **********************************************************/
 253 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
 254 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
 255
 256 /*****************************************************************************
 257  *
 258  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
 259  *
 260  * Description:
 261  *      This routine writes a 32 bit value to the pci configuration
 262  *      space.
 263  *
 264  * Returns:
 265  *      0 - indicate everything worked ok.
 266  *      != 0 - error indication
 267  */
 268 static inline int SkPciWriteCfgDWord(
 269 SK_AC *pAC,     /* Adapter Control structure pointer */
 270 int PciAddr,            /* PCI register address */
 271 SK_U32 Val)             /* pointer to store the read value */
 272 {
 273         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
 274         return(0);
 275 } /* SkPciWriteCfgDWord */
 276
 277 /*****************************************************************************
 278  *
 279  *      SkGeInitPCI - Init the PCI resources
 280  *
 281  * Description:
 282  *      This function initialize the PCI resources and IO
 283  *
 284  * Returns: N/A
 285  *
 286  */
 287 int SkGeInitPCI(SK_AC *pAC)
 288 {
 289         struct SK_NET_DEVICE *dev = pAC->dev[0];
 290         struct pci_dev *pdev = pAC->PciDev;
 291         int retval;
 292
 293         if (pci_enable_device(pdev) != 0) {
 294                 return 1;
 295         }
 296
 297         dev->mem_start = pci_resource_start (pdev, 0);
 298         pci_set_master(pdev);
 299
 300         if (pci_request_regions(pdev, "sk98lin") != 0) {
 301                 retval = 2;
 302                 goto out_disable;
 303         }
 304
 305 #ifdef SK_BIG_ENDIAN
 306         /*
 307          * On big endian machines, we use the adapter's aibility of
 308          * reading the descriptors as big endian.
 309          */
 310         {
 311                 SK_U32          our2;
 312                 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
 313                 our2 |= PCI_REV_DESC;
 314                 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
 315         }
 316 #endif
 317
 318         /*
 319          * Remap the regs into kernel space.
 320          */
 321         pAC->IoBase = ioremap_nocache(dev->mem_start, 0x4000);
 322
 323         if (!pAC->IoBase){
 324                 retval = 3;
 325                 goto out_release;
 326         }
 327
 328         return 0;
 329
 330  out_release:
 331         pci_release_regions(pdev);
 332  out_disable:
 333         pci_disable_device(pdev);
 334         return retval;
 335 }
 336
 337
 338 /*****************************************************************************
 339  *
 340  *      FreeResources - release resources allocated for adapter
 341  *
 342  * Description:
 343  *      This function releases the IRQ, unmaps the IO and
 344  *      frees the desriptor ring.
 345  *
 346  * Returns: N/A
 347  *
 348  */
 349 static void FreeResources(struct SK_NET_DEVICE *dev)
 350 {
 351 SK_U32 AllocFlag;
 352 DEV_NET         *pNet;
 353 SK_AC           *pAC;
 354
 355         pNet = netdev_priv(dev);
 356         pAC = pNet->pAC;
 357         AllocFlag = pAC->AllocFlag;
 358         if (pAC->PciDev) {
 359                 pci_release_regions(pAC->PciDev);
 360         }
 361         if (AllocFlag & SK_ALLOC_IRQ) {
 362                 free_irq(dev->irq, dev);
 363         }
 364         if (pAC->IoBase) {
 365                 iounmap(pAC->IoBase);
 366         }
 367         if (pAC->pDescrMem) {
 368                 BoardFreeMem(pAC);
 369         }
 370
 371 } /* FreeResources */
 372
 373 MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
 374 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
 375 MODULE_LICENSE("GPL");
 376
 377 #ifdef LINK_SPEED_A
 378 static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED;
 379 #else
 380 static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
 381 #endif
 382
 383 #ifdef LINK_SPEED_B
 384 static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED;
 385 #else
 386 static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
 387 #endif
 388
 389 #ifdef AUTO_NEG_A
 390 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
 391 #else
 392 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
 393 #endif
 394
 395 #ifdef DUP_CAP_A
 396 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
 397 #else
 398 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
 399 #endif
 400
 401 #ifdef FLOW_CTRL_A
 402 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
 403 #else
 404 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
 405 #endif
 406
 407 #ifdef ROLE_A
 408 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
 409 #else
 410 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
 411 #endif
 412
 413 #ifdef AUTO_NEG_B
 414 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
 415 #else
 416 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
 417 #endif
 418
 419 #ifdef DUP_CAP_B
 420 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
 421 #else
 422 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
 423 #endif
 424
 425 #ifdef FLOW_CTRL_B
 426 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
 427 #else
 428 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
 429 #endif
 430
 431 #ifdef ROLE_B
 432 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
 433 #else
 434 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
 435 #endif
 436
 437 #ifdef CON_TYPE
 438 static char *ConType[SK_MAX_CARD_PARAM] = CON_TYPE;
 439 #else
 440 static char *ConType[SK_MAX_CARD_PARAM] = {"", };
 441 #endif
 442
 443 #ifdef PREF_PORT
 444 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
 445 #else
 446 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
 447 #endif
 448
 449 #ifdef RLMT_MODE
 450 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
 451 #else
 452 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
 453 #endif
 454
 455 static int   IntsPerSec[SK_MAX_CARD_PARAM];
 456 static char *Moderation[SK_MAX_CARD_PARAM];
 457 static char *ModerationMask[SK_MAX_CARD_PARAM];
 458 static char *AutoSizing[SK_MAX_CARD_PARAM];
 459 static char *Stats[SK_MAX_CARD_PARAM];
 460
 461 module_param_array(Speed_A, charp, NULL, 0);
 462 module_param_array(Speed_B, charp, NULL, 0);
 463 module_param_array(AutoNeg_A, charp, NULL, 0);
 464 module_param_array(AutoNeg_B, charp, NULL, 0);
 465 module_param_array(DupCap_A, charp, NULL, 0);
 466 module_param_array(DupCap_B, charp, NULL, 0);
 467 module_param_array(FlowCtrl_A, charp, NULL, 0);
 468 module_param_array(FlowCtrl_B, charp, NULL, 0);
 469 module_param_array(Role_A, charp, NULL, 0);
 470 module_param_array(Role_B, charp, NULL, 0);
 471 module_param_array(ConType, charp, NULL, 0);
 472 module_param_array(PrefPort, charp, NULL, 0);
 473 module_param_array(RlmtMode, charp, NULL, 0);
 474 /* used for interrupt moderation */
 475 module_param_array(IntsPerSec, int, NULL, 0);
 476 module_param_array(Moderation, charp, NULL, 0);
 477 module_param_array(Stats, charp, NULL, 0);
 478 module_param_array(ModerationMask, charp, NULL, 0);
 479 module_param_array(AutoSizing, charp, NULL, 0);
 480
 481 /*****************************************************************************
 482  *
 483  *      SkGeBoardInit - do level 0 and 1 initialization
 484  *
 485  * Description:
 486  *      This function prepares the board hardware for running. The desriptor
 487  *      ring is set up, the IRQ is allocated and the configuration settings
 488  *      are examined.
 489  *
 490  * Returns:
 491  *      0, if everything is ok
 492  *      !=0, on error
 493  */
 494 static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
 495 {
 496 short   i;
 497 unsigned long Flags;
 498 char    *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
 499 char    *VerStr = VER_STRING;
 500 int     Ret;                    /* return code of request_irq */
 501 SK_BOOL DualNet;
 502
 503         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 504                 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
 505         for (i=0; i<SK_MAX_MACS; i++) {
 506                 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
 507                 pAC->TxPort[i][0].PortIndex = i;
 508                 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
 509                 pAC->RxPort[i].PortIndex = i;
 510         }
 511
 512         /* Initialize the mutexes */
 513         for (i=0; i<SK_MAX_MACS; i++) {
 514                 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
 515                 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
 516         }
 517         spin_lock_init(&pAC->SlowPathLock);
 518
 519         /* setup phy_id blink timer */
 520         pAC->BlinkTimer.function = SkGeBlinkTimer;
 521         pAC->BlinkTimer.data = (unsigned long) dev;
 522         init_timer(&pAC->BlinkTimer);
 523
 524         /* level 0 init common modules here */
 525
 526         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 527         /* Does a RESET on board ...*/
 528         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) {
 529                 printk("HWInit (0) failed.\n");
 530                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 531                 return(-EAGAIN);
 532         }
 533         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_DATA);
 534         SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA);
 535         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_DATA);
 536         SkAddrInit( pAC, pAC->IoBase, SK_INIT_DATA);
 537         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_DATA);
 538         SkTimerInit(pAC, pAC->IoBase, SK_INIT_DATA);
 539
 540         pAC->BoardLevel = SK_INIT_DATA;
 541         pAC->RxBufSize  = ETH_BUF_SIZE;
 542
 543         SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
 544         SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
 545
 546         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 547
 548         /* level 1 init common modules here (HW init) */
 549         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 550         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
 551                 printk("sk98lin: HWInit (1) failed.\n");
 552                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 553                 return(-EAGAIN);
 554         }
 555         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
 556         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
 557         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
 558         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
 559         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
 560         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
 561
 562         /* Set chipset type support */
 563         pAC->ChipsetType = 0;
 564         if ((pAC->GIni.GIChipId == CHIP_ID_YUKON) ||
 565                 (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE)) {
 566                 pAC->ChipsetType = 1;
 567         }
 568
 569         GetConfiguration(pAC);
 570         if (pAC->RlmtNets == 2) {
 571                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
 572         }
 573
 574         pAC->BoardLevel = SK_INIT_IO;
 575         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 576
 577         if (pAC->GIni.GIMacsFound == 2) {
 578                  Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, "sk98lin", dev);
 579         } else if (pAC->GIni.GIMacsFound == 1) {
 580                 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
 581                         "sk98lin", dev);
 582         } else {
 583                 printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n",
 584                        pAC->GIni.GIMacsFound);
 585                 return -EAGAIN;
 586         }
 587
 588         if (Ret) {
 589                 printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n",
 590                        dev->irq);
 591                 return -EAGAIN;
 592         }
 593         pAC->AllocFlag |= SK_ALLOC_IRQ;
 594
 595         /* Alloc memory for this board (Mem for RxD/TxD) : */
 596         if(!BoardAllocMem(pAC)) {
 597                 printk("No memory for descriptor rings.\n");
 598                 return(-EAGAIN);
 599         }
 600
 601         BoardInitMem(pAC);
 602         /* tschilling: New common function with minimum size check. */
 603         DualNet = SK_FALSE;
 604         if (pAC->RlmtNets == 2) {
 605                 DualNet = SK_TRUE;
 606         }
 607
 608         if (SkGeInitAssignRamToQueues(
 609                 pAC,
 610                 pAC->ActivePort,
 611                 DualNet)) {
 612                 BoardFreeMem(pAC);
 613                 printk("sk98lin: SkGeInitAssignRamToQueues failed.\n");
 614                 return(-EAGAIN);
 615         }
 616
 617         return (0);
 618 } /* SkGeBoardInit */
 619
 620
 621 /*****************************************************************************
 622  *
 623  *      BoardAllocMem - allocate the memory for the descriptor rings
 624  *
 625  * Description:
 626  *      This function allocates the memory for all descriptor rings.
 627  *      Each ring is aligned for the desriptor alignment and no ring
 628  *      has a 4 GByte boundary in it (because the upper 32 bit must
 629  *      be constant for all descriptiors in one rings).
 630  *
 631  * Returns:
 632  *      SK_TRUE, if all memory could be allocated
 633  *      SK_FALSE, if not
 634  */
 635 static SK_BOOL BoardAllocMem(
 636 SK_AC   *pAC)
 637 {
 638 caddr_t         pDescrMem;      /* pointer to descriptor memory area */
 639 size_t          AllocLength;    /* length of complete descriptor area */
 640 int             i;              /* loop counter */
 641 unsigned long   BusAddr;
 642
 643
 644         /* rings plus one for alignment (do not cross 4 GB boundary) */
 645         /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
 646 #if (BITS_PER_LONG == 32)
 647         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 648 #else
 649         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 650                 + RX_RING_SIZE + 8;
 651 #endif
 652
 653         pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
 654                                          &pAC->pDescrMemDMA);
 655
 656         if (pDescrMem == NULL) {
 657                 return (SK_FALSE);
 658         }
 659         pAC->pDescrMem = pDescrMem;
 660         BusAddr = (unsigned long) pAC->pDescrMemDMA;
 661
 662         /* Descriptors need 8 byte alignment, and this is ensured
 663          * by pci_alloc_consistent.
 664          */
 665         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 666                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 667                         ("TX%d/A: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 668                         i, (unsigned long) pDescrMem,
 669                         BusAddr));
 670                 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
 671                 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
 672                 pDescrMem += TX_RING_SIZE;
 673                 BusAddr += TX_RING_SIZE;
 674
 675                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 676                         ("RX%d: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 677                         i, (unsigned long) pDescrMem,
 678                         (unsigned long)BusAddr));
 679                 pAC->RxPort[i].pRxDescrRing = pDescrMem;
 680                 pAC->RxPort[i].VRxDescrRing = BusAddr;
 681                 pDescrMem += RX_RING_SIZE;
 682                 BusAddr += RX_RING_SIZE;
 683         } /* for */
 684
 685         return (SK_TRUE);
 686 } /* BoardAllocMem */
 687
 688
 689 /****************************************************************************
 690  *
 691  *      BoardFreeMem - reverse of BoardAllocMem
 692  *
 693  * Description:
 694  *      Free all memory allocated in BoardAllocMem: adapter context,
 695  *      descriptor rings, locks.
 696  *
 697  * Returns:     N/A
 698  */
 699 static void BoardFreeMem(
 700 SK_AC           *pAC)
 701 {
 702 size_t          AllocLength;    /* length of complete descriptor area */
 703
 704         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 705                 ("BoardFreeMem\n"));
 706 #if (BITS_PER_LONG == 32)
 707         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 708 #else
 709         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 710                 + RX_RING_SIZE + 8;
 711 #endif
 712
 713         pci_free_consistent(pAC->PciDev, AllocLength,
 714                             pAC->pDescrMem, pAC->pDescrMemDMA);
 715         pAC->pDescrMem = NULL;
 716 } /* BoardFreeMem */
 717
 718
 719 /*****************************************************************************
 720  *
 721  *      BoardInitMem - initiate the descriptor rings
 722  *
 723  * Description:
 724  *      This function sets the descriptor rings up in memory.
 725  *      The adapter is initialized with the descriptor start addresses.
 726  *
 727  * Returns:     N/A
 728  */
 729 static void BoardInitMem(
 730 SK_AC   *pAC)   /* pointer to adapter context */
 731 {
 732 int     i;              /* loop counter */
 733 int     RxDescrSize;    /* the size of a rx descriptor rounded up to alignment*/
 734 int     TxDescrSize;    /* the size of a tx descriptor rounded up to alignment*/
 735
 736         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 737                 ("BoardInitMem\n"));
 738
 739         RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 740         pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
 741         TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 742         pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
 743
 744         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 745                 SetupRing(
 746                         pAC,
 747                         pAC->TxPort[i][0].pTxDescrRing,
 748                         pAC->TxPort[i][0].VTxDescrRing,
 749                         (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
 750                         (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
 751                         (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
 752                         &pAC->TxPort[i][0].TxdRingFree,
 753                         SK_TRUE);
 754                 SetupRing(
 755                         pAC,
 756                         pAC->RxPort[i].pRxDescrRing,
 757                         pAC->RxPort[i].VRxDescrRing,
 758                         &pAC->RxPort[i].pRxdRingHead,
 759                         &pAC->RxPort[i].pRxdRingTail,
 760                         &pAC->RxPort[i].pRxdRingPrev,
 761                         &pAC->RxPort[i].RxdRingFree,
 762                         SK_FALSE);
 763         }
 764 } /* BoardInitMem */
 765
 766
 767 /*****************************************************************************
 768  *
 769  *      SetupRing - create one descriptor ring
 770  *
 771  * Description:
 772  *      This function creates one descriptor ring in the given memory area.
 773  *      The head, tail and number of free descriptors in the ring are set.
 774  *
 775  * Returns:
 776  *      none
 777  */
 778 static void SetupRing(
 779 SK_AC           *pAC,
 780 void            *pMemArea,      /* a pointer to the memory area for the ring */
 781 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
 782 RXD             **ppRingHead,   /* address where the head should be written */
 783 RXD             **ppRingTail,   /* address where the tail should be written */
 784 RXD             **ppRingPrev,   /* address where the tail should be written */
 785 int             *pRingFree,     /* address where the # of free descr. goes */
 786 SK_BOOL         IsTx)           /* flag: is this a tx ring */
 787 {
 788 int     i;              /* loop counter */
 789 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
 790 int     DescrNum;       /* number of descriptors per ring */
 791 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
 792 RXD     *pNextDescr;    /* pointer to the next descriptor */
 793 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
 794 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
 795
 796         if (IsTx == SK_TRUE) {
 797                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
 798                         DESCR_ALIGN;
 799                 DescrNum = TX_RING_SIZE / DescrSize;
 800         } else {
 801                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
 802                         DESCR_ALIGN;
 803                 DescrNum = RX_RING_SIZE / DescrSize;
 804         }
 805
 806         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 807                 ("Descriptor size: %d   Descriptor Number: %d\n",
 808                 DescrSize,DescrNum));
 809
 810         pDescr = (RXD*) pMemArea;
 811         pPrevDescr = NULL;
 812         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 813         VNextDescr = VMemArea + DescrSize;
 814         for(i=0; i<DescrNum; i++) {
 815                 /* set the pointers right */
 816                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
 817                 pDescr->pNextRxd = pNextDescr;
 818                 pDescr->TcpSumStarts = 0;
 819
 820                 /* advance one step */
 821                 pPrevDescr = pDescr;
 822                 pDescr = pNextDescr;
 823                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 824                 VNextDescr += DescrSize;
 825         }
 826         pPrevDescr->pNextRxd = (RXD*) pMemArea;
 827         pPrevDescr->VNextRxd = VMemArea;
 828         pDescr = (RXD*) pMemArea;
 829         *ppRingHead = (RXD*) pMemArea;
 830         *ppRingTail = *ppRingHead;
 831         *ppRingPrev = pPrevDescr;
 832         *pRingFree = DescrNum;
 833 } /* SetupRing */
 834
 835
 836 /*****************************************************************************
 837  *
 838  *      PortReInitBmu - re-initiate the descriptor rings for one port
 839  *
 840  * Description:
 841  *      This function reinitializes the descriptor rings of one port
 842  *      in memory. The port must be stopped before.
 843  *      The HW is initialized with the descriptor start addresses.
 844  *
 845  * Returns:
 846  *      none
 847  */
 848 static void PortReInitBmu(
 849 SK_AC   *pAC,           /* pointer to adapter context */
 850 int     PortIndex)      /* index of the port for which to re-init */
 851 {
 852         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 853                 ("PortReInitBmu "));
 854
 855         /* set address of first descriptor of ring in BMU */
 856         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_L,
 857                 (uint32_t)(((caddr_t)
 858                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 859                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 860                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
 861                 0xFFFFFFFF));
 862         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_H,
 863                 (uint32_t)(((caddr_t)
 864                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 865                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 866                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
 867         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_L,
 868                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 869                 pAC->RxPort[PortIndex].pRxDescrRing +
 870                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
 871         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_H,
 872                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 873                 pAC->RxPort[PortIndex].pRxDescrRing +
 874                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
 875 } /* PortReInitBmu */
 876
 877
 878 /****************************************************************************
 879  *
 880  *      SkGeIsr - handle adapter interrupts
 881  *
 882  * Description:
 883  *      The interrupt routine is called when the network adapter
 884  *      generates an interrupt. It may also be called if another device
 885  *      shares this interrupt vector with the driver.
 886  *
 887  * Returns: N/A
 888  *
 889  */
 890 static SkIsrRetVar SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
 891 {
 892 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
 893 DEV_NET         *pNet;
 894 SK_AC           *pAC;
 895 SK_U32          IntSrc;         /* interrupts source register contents */
 896
 897         pNet = netdev_priv(dev);
 898         pAC = pNet->pAC;
 899
 900         /*
 901          * Check and process if its our interrupt
 902          */
 903         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
 904         if (IntSrc == 0) {
 905                 return SkIsrRetNone;
 906         }
 907
 908         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
 909 #if 0 /* software irq currently not used */
 910                 if (IntSrc & IS_IRQ_SW) {
 911                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 912                                 SK_DBGCAT_DRV_INT_SRC,
 913                                 ("Software IRQ\n"));
 914                 }
 915 #endif
 916                 if (IntSrc & IS_R1_F) {
 917                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 918                                 SK_DBGCAT_DRV_INT_SRC,
 919                                 ("EOF RX1 IRQ\n"));
 920                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
 921                         SK_PNMI_CNT_RX_INTR(pAC, 0);
 922                 }
 923                 if (IntSrc & IS_R2_F) {
 924                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 925                                 SK_DBGCAT_DRV_INT_SRC,
 926                                 ("EOF RX2 IRQ\n"));
 927                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
 928                         SK_PNMI_CNT_RX_INTR(pAC, 1);
 929                 }
 930 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 931                 if (IntSrc & IS_XA1_F) {
 932                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 933                                 SK_DBGCAT_DRV_INT_SRC,
 934                                 ("EOF AS TX1 IRQ\n"));
 935                         SK_PNMI_CNT_TX_INTR(pAC, 0);
 936                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 937                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
 938                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 939                 }
 940                 if (IntSrc & IS_XA2_F) {
 941                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 942                                 SK_DBGCAT_DRV_INT_SRC,
 943                                 ("EOF AS TX2 IRQ\n"));
 944                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 945                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 946                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
 947                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 948                 }
 949 #if 0 /* only if sync. queues used */
 950                 if (IntSrc & IS_XS1_F) {
 951                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 952                                 SK_DBGCAT_DRV_INT_SRC,
 953                                 ("EOF SY TX1 IRQ\n"));
 954                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 955                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 956                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
 957                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 958                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
 959                 }
 960                 if (IntSrc & IS_XS2_F) {
 961                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 962                                 SK_DBGCAT_DRV_INT_SRC,
 963                                 ("EOF SY TX2 IRQ\n"));
 964                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 965                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 966                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
 967                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 968                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
 969                 }
 970 #endif
 971 #endif
 972
 973                 /* do all IO at once */
 974                 if (IntSrc & IS_R1_F)
 975                         ClearAndStartRx(pAC, 0);
 976                 if (IntSrc & IS_R2_F)
 977                         ClearAndStartRx(pAC, 1);
 978 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 979                 if (IntSrc & IS_XA1_F)
 980                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
 981                 if (IntSrc & IS_XA2_F)
 982                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
 983 #endif
 984                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
 985         } /* while (IntSrc & IRQ_MASK != 0) */
 986
 987         IntSrc &= pAC->GIni.GIValIrqMask;
 988         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
 989                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
 990                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
 991                 pAC->CheckQueue = SK_FALSE;
 992                 spin_lock(&pAC->SlowPathLock);
 993                 if (IntSrc & SPECIAL_IRQS)
 994                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
 995
 996                 SkEventDispatcher(pAC, pAC->IoBase);
 997                 spin_unlock(&pAC->SlowPathLock);
 998         }
 999         /*
1000          * do it all again is case we cleared an interrupt that
1001          * came in after handling the ring (OUTs may be delayed
1002          * in hardware buffers, but are through after IN)
1003          *
1004          * rroesler: has been commented out and shifted to
1005          *           SkGeDrvEvent(), because it is timer
1006          *           guarded now
1007          *
1008         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1009         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1010          */
1011
1012         if (pAC->CheckQueue) {
1013                 pAC->CheckQueue = SK_FALSE;
1014                 spin_lock(&pAC->SlowPathLock);
1015                 SkEventDispatcher(pAC, pAC->IoBase);
1016                 spin_unlock(&pAC->SlowPathLock);
1017         }
1018
1019         /* IRQ is processed - Enable IRQs again*/
1020         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1021
1022                 return SkIsrRetHandled;
1023 } /* SkGeIsr */
1024
1025
1026 /****************************************************************************
1027  *
1028  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1029  *
1030  * Description:
1031  *      The interrupt routine is called when the network adapter
1032  *      generates an interrupt. It may also be called if another device
1033  *      shares this interrupt vector with the driver.
1034  *      This is the same as above, but handles only one port.
1035  *
1036  * Returns: N/A
1037  *
1038  */
1039 static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1040 {
1041 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1042 DEV_NET         *pNet;
1043 SK_AC           *pAC;
1044 SK_U32          IntSrc;         /* interrupts source register contents */
1045
1046         pNet = netdev_priv(dev);
1047         pAC = pNet->pAC;
1048
1049         /*
1050          * Check and process if its our interrupt
1051          */
1052         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1053         if (IntSrc == 0) {
1054                 return SkIsrRetNone;
1055         }
1056
1057         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1058 #if 0 /* software irq currently not used */
1059                 if (IntSrc & IS_IRQ_SW) {
1060                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1061                                 SK_DBGCAT_DRV_INT_SRC,
1062                                 ("Software IRQ\n"));
1063                 }
1064 #endif
1065                 if (IntSrc & IS_R1_F) {
1066                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1067                                 SK_DBGCAT_DRV_INT_SRC,
1068                                 ("EOF RX1 IRQ\n"));
1069                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1070                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1071                 }
1072 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1073                 if (IntSrc & IS_XA1_F) {
1074                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1075                                 SK_DBGCAT_DRV_INT_SRC,
1076                                 ("EOF AS TX1 IRQ\n"));
1077                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1078                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1079                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1080                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1081                 }
1082 #if 0 /* only if sync. queues used */
1083                 if (IntSrc & IS_XS1_F) {
1084                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1085                                 SK_DBGCAT_DRV_INT_SRC,
1086                                 ("EOF SY TX1 IRQ\n"));
1087                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1088                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1089                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1090                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1091                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1092                 }
1093 #endif
1094 #endif
1095
1096                 /* do all IO at once */
1097                 if (IntSrc & IS_R1_F)
1098                         ClearAndStartRx(pAC, 0);
1099 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1100                 if (IntSrc & IS_XA1_F)
1101                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1102 #endif
1103                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1104         } /* while (IntSrc & IRQ_MASK != 0) */
1105
1106         IntSrc &= pAC->GIni.GIValIrqMask;
1107         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1108                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1109                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1110                 pAC->CheckQueue = SK_FALSE;
1111                 spin_lock(&pAC->SlowPathLock);
1112                 if (IntSrc & SPECIAL_IRQS)
1113                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1114
1115                 SkEventDispatcher(pAC, pAC->IoBase);
1116                 spin_unlock(&pAC->SlowPathLock);
1117         }
1118         /*
1119          * do it all again is case we cleared an interrupt that
1120          * came in after handling the ring (OUTs may be delayed
1121          * in hardware buffers, but are through after IN)
1122          *
1123          * rroesler: has been commented out and shifted to
1124          *           SkGeDrvEvent(), because it is timer
1125          *           guarded now
1126          *
1127         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1128          */
1129
1130         /* IRQ is processed - Enable IRQs again*/
1131         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1132
1133                 return SkIsrRetHandled;
1134 } /* SkGeIsrOnePort */
1135
1136 #ifdef CONFIG_NET_POLL_CONTROLLER
1137 /****************************************************************************
1138  *
1139  *      SkGePollController - polling receive, for netconsole
1140  *
1141  * Description:
1142  *      Polling receive - used by netconsole and other diagnostic tools
1143  *      to allow network i/o with interrupts disabled.
1144  *
1145  * Returns: N/A
1146  */
1147 static void SkGePollController(struct net_device *dev)
1148 {
1149         disable_irq(dev->irq);
1150         SkGeIsr(dev->irq, dev, NULL);
1151         enable_irq(dev->irq);
1152 }
1153 #endif
1154
1155 /****************************************************************************
1156  *
1157  *      SkGeOpen - handle start of initialized adapter
1158  *
1159  * Description:
1160  *      This function starts the initialized adapter.
1161  *      The board level variable is set and the adapter is
1162  *      brought to full functionality.
1163  *      The device flags are set for operation.
1164  *      Do all necessary level 2 initialization, enable interrupts and
1165  *      give start command to RLMT.
1166  *
1167  * Returns:
1168  *      0 on success
1169  *      != 0 on error
1170  */
1171 static int SkGeOpen(
1172 struct SK_NET_DEVICE    *dev)
1173 {
1174         DEV_NET                 *pNet;
1175         SK_AC                   *pAC;
1176         unsigned long   Flags;          /* for spin lock */
1177         int                             i;
1178         SK_EVPARA               EvPara;         /* an event parameter union */
1179
1180         pNet = netdev_priv(dev);
1181         pAC = pNet->pAC;
1182
1183         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1184                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1185
1186 #ifdef SK_DIAG_SUPPORT
1187         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1188                 if (pAC->Pnmi.DiagAttached == SK_DIAG_RUNNING) {
1189                         return (-1);   /* still in use by diag; deny actions */
1190                 }
1191         }
1192 #endif
1193
1194         /* Set blink mode */
1195         if ((pAC->PciDev->vendor == 0x1186) || (pAC->PciDev->vendor == 0x11ab ))
1196                 pAC->GIni.GILedBlinkCtrl = OEM_CONFIG_VALUE;
1197
1198         if (pAC->BoardLevel == SK_INIT_DATA) {
1199                 /* level 1 init common modules here */
1200                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
1201                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1202                         return (-1);
1203                 }
1204                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_IO);
1205                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_IO);
1206                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_IO);
1207                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_IO);
1208                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_IO);
1209                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_IO);
1210                 pAC->BoardLevel = SK_INIT_IO;
1211         }
1212
1213         if (pAC->BoardLevel != SK_INIT_RUN) {
1214                 /* tschilling: Level 2 init modules here, check return value. */
1215                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_RUN) != 0) {
1216                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1217                         return (-1);
1218                 }
1219                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_RUN);
1220                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1221                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1222                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1223                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1224                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1225                 pAC->BoardLevel = SK_INIT_RUN;
1226         }
1227
1228         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1229                 /* Enable transmit descriptor polling. */
1230                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1231                 FillRxRing(pAC, &pAC->RxPort[i]);
1232         }
1233         SkGeYellowLED(pAC, pAC->IoBase, 1);
1234
1235         StartDrvCleanupTimer(pAC);
1236         SkDimEnableModerationIfNeeded(pAC);
1237         SkDimDisplayModerationSettings(pAC);
1238
1239         pAC->GIni.GIValIrqMask &= IRQ_MASK;
1240
1241         /* enable Interrupts */
1242         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1243         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1244
1245         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1246
1247         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1248                 EvPara.Para32[0] = pAC->RlmtNets;
1249                 EvPara.Para32[1] = -1;
1250                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1251                         EvPara);
1252                 EvPara.Para32[0] = pAC->RlmtMode;
1253                 EvPara.Para32[1] = 0;
1254                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1255                         EvPara);
1256         }
1257
1258         EvPara.Para32[0] = pNet->NetNr;
1259         EvPara.Para32[1] = -1;
1260         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1261         SkEventDispatcher(pAC, pAC->IoBase);
1262         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1263
1264         pAC->MaxPorts++;
1265
1266
1267         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1268                 ("SkGeOpen suceeded\n"));
1269
1270         return (0);
1271 } /* SkGeOpen */
1272
1273
1274 /****************************************************************************
1275  *
1276  *      SkGeClose - Stop initialized adapter
1277  *
1278  * Description:
1279  *      Close initialized adapter.
1280  *
1281  * Returns:
1282  *      0 - on success
1283  *      error code - on error
1284  */
1285 static int SkGeClose(
1286 struct SK_NET_DEVICE    *dev)
1287 {
1288         DEV_NET         *pNet;
1289         DEV_NET         *newPtrNet;
1290         SK_AC           *pAC;
1291
1292         unsigned long   Flags;          /* for spin lock */
1293         int             i;
1294         int             PortIdx;
1295         SK_EVPARA       EvPara;
1296
1297         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1298                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1299
1300         pNet = netdev_priv(dev);
1301         pAC = pNet->pAC;
1302
1303 #ifdef SK_DIAG_SUPPORT
1304         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1305                 if (pAC->DiagFlowCtrl == SK_FALSE) {
1306                         /*
1307                         ** notify that the interface which has been closed
1308                         ** by operator interaction must not be started up
1309                         ** again when the DIAG has finished.
1310                         */
1311                         newPtrNet = netdev_priv(pAC->dev[0]);
1312                         if (newPtrNet == pNet) {
1313                                 pAC->WasIfUp[0] = SK_FALSE;
1314                         } else {
1315                                 pAC->WasIfUp[1] = SK_FALSE;
1316                         }
1317                         return 0; /* return to system everything is fine... */
1318                 } else {
1319                         pAC->DiagFlowCtrl = SK_FALSE;
1320                 }
1321         }
1322 #endif
1323
1324         netif_stop_queue(dev);
1325
1326         if (pAC->RlmtNets == 1)
1327                 PortIdx = pAC->ActivePort;
1328         else
1329                 PortIdx = pNet->NetNr;
1330
1331         StopDrvCleanupTimer(pAC);
1332
1333         /*
1334          * Clear multicast table, promiscuous mode ....
1335          */
1336         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1337         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1338                 SK_PROM_MODE_NONE);
1339
1340         if (pAC->MaxPorts == 1) {
1341                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1342                 /* disable interrupts */
1343                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1344                 EvPara.Para32[0] = pNet->NetNr;
1345                 EvPara.Para32[1] = -1;
1346                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1347                 SkEventDispatcher(pAC, pAC->IoBase);
1348                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1349                 /* stop the hardware */
1350                 SkGeDeInit(pAC, pAC->IoBase);
1351                 pAC->BoardLevel = SK_INIT_DATA;
1352                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1353         } else {
1354
1355                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1356                 EvPara.Para32[0] = pNet->NetNr;
1357                 EvPara.Para32[1] = -1;
1358                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1359                 SkPnmiEvent(pAC, pAC->IoBase, SK_PNMI_EVT_XMAC_RESET, EvPara);
1360                 SkEventDispatcher(pAC, pAC->IoBase);
1361                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1362
1363                 /* Stop port */
1364                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1365                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1366                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1367                         SK_STOP_ALL, SK_HARD_RST);
1368                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1369                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1370         }
1371
1372         if (pAC->RlmtNets == 1) {
1373                 /* clear all descriptor rings */
1374                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1375                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1376                         ClearRxRing(pAC, &pAC->RxPort[i]);
1377                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1378                 }
1379         } else {
1380                 /* clear port descriptor rings */
1381                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1382                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1383                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1384         }
1385
1386         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1387                 ("SkGeClose: done "));
1388
1389         SK_MEMSET(&(pAC->PnmiBackup), 0, sizeof(SK_PNMI_STRUCT_DATA));
1390         SK_MEMCPY(&(pAC->PnmiBackup), &(pAC->PnmiStruct),
1391                         sizeof(SK_PNMI_STRUCT_DATA));
1392
1393         pAC->MaxPorts--;
1394
1395         return (0);
1396 } /* SkGeClose */
1397
1398
1399 /*****************************************************************************
1400  *
1401  *      SkGeXmit - Linux frame transmit function
1402  *
1403  * Description:
1404  *      The system calls this function to send frames onto the wire.
1405  *      It puts the frame in the tx descriptor ring. If the ring is
1406  *      full then, the 'tbusy' flag is set.
1407  *
1408  * Returns:
1409  *      0, if everything is ok
1410  *      !=0, on error
1411  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
1412  *      allocated skb's) !!!
1413  */
1414 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
1415 {
1416 DEV_NET         *pNet;
1417 SK_AC           *pAC;
1418 int                     Rc;     /* return code of XmitFrame */
1419
1420         pNet = netdev_priv(dev);
1421         pAC = pNet->pAC;
1422
1423         if ((!skb_shinfo(skb)->nr_frags) ||
1424                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
1425                 /* Don't activate scatter-gather and hardware checksum */
1426
1427                 if (pAC->RlmtNets == 2)
1428                         Rc = XmitFrame(
1429                                 pAC,
1430                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1431                                 skb);
1432                 else
1433                         Rc = XmitFrame(
1434                                 pAC,
1435                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1436                                 skb);
1437         } else {
1438                 /* scatter-gather and hardware TCP checksumming anabled*/
1439                 if (pAC->RlmtNets == 2)
1440                         Rc = XmitFrameSG(
1441                                 pAC,
1442                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1443                                 skb);
1444                 else
1445                         Rc = XmitFrameSG(
1446                                 pAC,
1447                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1448                                 skb);
1449         }
1450
1451         /* Transmitter out of resources? */
1452         if (Rc <= 0) {
1453                 netif_stop_queue(dev);
1454         }
1455
1456         /* If not taken, give buffer ownership back to the
1457          * queueing layer.
1458          */
1459         if (Rc < 0)
1460                 return (1);
1461
1462         dev->trans_start = jiffies;
1463         return (0);
1464 } /* SkGeXmit */
1465
1466
1467 /*****************************************************************************
1468  *
1469  *      XmitFrame - fill one socket buffer into the transmit ring
1470  *
1471  * Description:
1472  *      This function puts a message into the transmit descriptor ring
1473  *      if there is a descriptors left.
1474  *      Linux skb's consist of only one continuous buffer.
1475  *      The first step locks the ring. It is held locked
1476  *      all time to avoid problems with SWITCH_../PORT_RESET.
1477  *      Then the descriptoris allocated.
1478  *      The second part is linking the buffer to the descriptor.
1479  *      At the very last, the Control field of the descriptor
1480  *      is made valid for the BMU and a start TX command is given
1481  *      if necessary.
1482  *
1483  * Returns:
1484  *      > 0 - on succes: the number of bytes in the message
1485  *      = 0 - on resource shortage: this frame sent or dropped, now
1486  *              the ring is full ( -> set tbusy)
1487  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1488  */
1489 static int XmitFrame(
1490 SK_AC           *pAC,           /* pointer to adapter context           */
1491 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1492 struct sk_buff  *pMessage)      /* pointer to send-message              */
1493 {
1494         TXD             *pTxd;          /* the rxd to fill */
1495         TXD             *pOldTxd;
1496         unsigned long    Flags;
1497         SK_U64           PhysAddr;
1498         int              BytesSend = pMessage->len;
1499
1500         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
1501
1502         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1503 #ifndef USE_TX_COMPLETE
1504         FreeTxDescriptors(pAC, pTxPort);
1505 #endif
1506         if (pTxPort->TxdRingFree == 0) {
1507                 /*
1508                 ** no enough free descriptors in ring at the moment.
1509                 ** Maybe free'ing some old one help?
1510                 */
1511                 FreeTxDescriptors(pAC, pTxPort);
1512                 if (pTxPort->TxdRingFree == 0) {
1513                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1514                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1515                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1516                                 SK_DBGCAT_DRV_TX_PROGRESS,
1517                                 ("XmitFrame failed\n"));
1518                         /*
1519                         ** the desired message can not be sent
1520                         ** Because tbusy seems to be set, the message
1521                         ** should not be freed here. It will be used
1522                         ** by the scheduler of the ethernet handler
1523                         */
1524                         return (-1);
1525                 }
1526         }
1527
1528         /*
1529         ** If the passed socket buffer is of smaller MTU-size than 60,
1530         ** copy everything into new buffer and fill all bytes between
1531         ** the original packet end and the new packet end of 60 with 0x00.
1532         ** This is to resolve faulty padding by the HW with 0xaa bytes.
1533         */
1534         if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
1535                 if ((pMessage = skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) == NULL) {
1536                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1537                         return 0;
1538                 }
1539                 pMessage->len = C_LEN_ETHERNET_MINSIZE;
1540         }
1541
1542         /*
1543         ** advance head counter behind descriptor needed for this frame,
1544         ** so that needed descriptor is reserved from that on. The next
1545         ** action will be to add the passed buffer to the TX-descriptor
1546         */
1547         pTxd = pTxPort->pTxdRingHead;
1548         pTxPort->pTxdRingHead = pTxd->pNextTxd;
1549         pTxPort->TxdRingFree--;
1550
1551 #ifdef SK_DUMP_TX
1552         DumpMsg(pMessage, "XmitFrame");
1553 #endif
1554
1555         /*
1556         ** First step is to map the data to be sent via the adapter onto
1557         ** the DMA memory. Kernel 2.2 uses virt_to_bus(), but kernels 2.4
1558         ** and 2.6 need to use pci_map_page() for that mapping.
1559         */
1560         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1561                                         virt_to_page(pMessage->data),
1562                                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1563                                         pMessage->len,
1564                                         PCI_DMA_TODEVICE);
1565         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1566         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1567         pTxd->pMBuf     = pMessage;
1568
1569         if (pMessage->ip_summed == CHECKSUM_HW) {
1570                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1571                 u16 offset = hdrlen + pMessage->csum;
1572
1573                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1574                         (pAC->GIni.GIChipRev == 0) &&
1575                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1576                         pTxd->TBControl = BMU_TCP_CHECK;
1577                 } else {
1578                         pTxd->TBControl = BMU_UDP_CHECK;
1579                 }
1580
1581                 pTxd->TcpSumOfs = 0;
1582                 pTxd->TcpSumSt  = hdrlen;
1583                 pTxd->TcpSumWr  = offset;
1584
1585                 pTxd->TBControl |= BMU_OWN | BMU_STF |
1586                                    BMU_SW  | BMU_EOF |
1587 #ifdef USE_TX_COMPLETE
1588                                    BMU_IRQ_EOF |
1589 #endif
1590                                    pMessage->len;
1591         } else {
1592                 pTxd->TBControl = BMU_OWN | BMU_STF | BMU_CHECK |
1593                                   BMU_SW  | BMU_EOF |
1594 #ifdef USE_TX_COMPLETE
1595                                    BMU_IRQ_EOF |
1596 #endif
1597                         pMessage->len;
1598         }
1599
1600         /*
1601         ** If previous descriptor already done, give TX start cmd
1602         */
1603         pOldTxd = xchg(&pTxPort->pTxdRingPrev, pTxd);
1604         if ((pOldTxd->TBControl & BMU_OWN) == 0) {
1605                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1606         }
1607
1608         /*
1609         ** after releasing the lock, the skb may immediately be free'd
1610         */
1611         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1612         if (pTxPort->TxdRingFree != 0) {
1613                 return (BytesSend);
1614         } else {
1615                 return (0);
1616         }
1617
1618 } /* XmitFrame */
1619
1620 /*****************************************************************************
1621  *
1622  *      XmitFrameSG - fill one socket buffer into the transmit ring
1623  *                (use SG and TCP/UDP hardware checksumming)
1624  *
1625  * Description:
1626  *      This function puts a message into the transmit descriptor ring
1627  *      if there is a descriptors left.
1628  *
1629  * Returns:
1630  *      > 0 - on succes: the number of bytes in the message
1631  *      = 0 - on resource shortage: this frame sent or dropped, now
1632  *              the ring is full ( -> set tbusy)
1633  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1634  */
1635 static int XmitFrameSG(
1636 SK_AC           *pAC,           /* pointer to adapter context           */
1637 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1638 struct sk_buff  *pMessage)      /* pointer to send-message              */
1639 {
1640
1641         TXD             *pTxd;
1642         TXD             *pTxdFst;
1643         TXD             *pTxdLst;
1644         int              CurrFrag;
1645         int              BytesSend;
1646         skb_frag_t      *sk_frag;
1647         SK_U64           PhysAddr;
1648         unsigned long    Flags;
1649         SK_U32           Control;
1650
1651         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1652 #ifndef USE_TX_COMPLETE
1653         FreeTxDescriptors(pAC, pTxPort);
1654 #endif
1655         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
1656                 FreeTxDescriptors(pAC, pTxPort);
1657                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
1658                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1659                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1660                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1661                                 SK_DBGCAT_DRV_TX_PROGRESS,
1662                                 ("XmitFrameSG failed - Ring full\n"));
1663                                 /* this message can not be sent now */
1664                         return(-1);
1665                 }
1666         }
1667
1668         pTxd      = pTxPort->pTxdRingHead;
1669         pTxdFst   = pTxd;
1670         pTxdLst   = pTxd;
1671         BytesSend = 0;
1672
1673         /*
1674         ** Map the first fragment (header) into the DMA-space
1675         */
1676         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1677                         virt_to_page(pMessage->data),
1678                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1679                         skb_headlen(pMessage),
1680                         PCI_DMA_TODEVICE);
1681
1682         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1683         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1684
1685         /*
1686         ** Does the HW need to evaluate checksum for TCP or UDP packets?
1687         */
1688         if (pMessage->ip_summed == CHECKSUM_HW) {
1689                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1690                 u16 offset = hdrlen + pMessage->csum;
1691
1692                 Control = BMU_STFWD;
1693
1694                 /*
1695                 ** We have to use the opcode for tcp here,  because the
1696                 ** opcode for udp is not working in the hardware yet
1697                 ** (Revision 2.0)
1698                 */
1699                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1700                         (pAC->GIni.GIChipRev == 0) &&
1701                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1702                         Control |= BMU_TCP_CHECK;
1703                 } else {
1704                         Control |= BMU_UDP_CHECK;
1705                 }
1706
1707                 pTxd->TcpSumOfs = 0;
1708                 pTxd->TcpSumSt  = hdrlen;
1709                 pTxd->TcpSumWr  = offset;
1710         } else
1711                 Control = BMU_CHECK | BMU_SW;
1712
1713         pTxd->TBControl = BMU_STF | Control | skb_headlen(pMessage);
1714
1715         pTxd = pTxd->pNextTxd;
1716         pTxPort->TxdRingFree--;
1717         BytesSend += skb_headlen(pMessage);
1718
1719         /*
1720         ** Browse over all SG fragments and map each of them into the DMA space
1721         */
1722         for (CurrFrag = 0; CurrFrag < skb_shinfo(pMessage)->nr_frags; CurrFrag++) {
1723                 sk_frag = &skb_shinfo(pMessage)->frags[CurrFrag];
1724                 /*
1725                 ** we already have the proper value in entry
1726                 */
1727                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1728                                                  sk_frag->page,
1729                                                  sk_frag->page_offset,
1730                                                  sk_frag->size,
1731                                                  PCI_DMA_TODEVICE);
1732
1733                 pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1734                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1735                 pTxd->pMBuf     = pMessage;
1736
1737                 pTxd->TBControl = Control | BMU_OWN | sk_frag->size;;
1738
1739                 /*
1740                 ** Do we have the last fragment?
1741                 */
1742                 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags )  {
1743 #ifdef USE_TX_COMPLETE
1744                         pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF;
1745 #else
1746                         pTxd->TBControl |= BMU_EOF;
1747 #endif
1748                         pTxdFst->TBControl |= BMU_OWN | BMU_SW;
1749                 }
1750                 pTxdLst = pTxd;
1751                 pTxd    = pTxd->pNextTxd;
1752                 pTxPort->TxdRingFree--;
1753                 BytesSend += sk_frag->size;
1754         }
1755
1756         /*
1757         ** If previous descriptor already done, give TX start cmd
1758         */
1759         if ((pTxPort->pTxdRingPrev->TBControl & BMU_OWN) == 0) {
1760                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1761         }
1762
1763         pTxPort->pTxdRingPrev = pTxdLst;
1764         pTxPort->pTxdRingHead = pTxd;
1765
1766         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1767
1768         if (pTxPort->TxdRingFree > 0) {
1769                 return (BytesSend);
1770         } else {
1771                 return (0);
1772         }
1773 }
1774
1775 /*****************************************************************************
1776  *
1777  *      FreeTxDescriptors - release descriptors from the descriptor ring
1778  *
1779  * Description:
1780  *      This function releases descriptors from a transmit ring if they
1781  *      have been sent by the BMU.
1782  *      If a descriptors is sent, it can be freed and the message can
1783  *      be freed, too.
1784  *      The SOFTWARE controllable bit is used to prevent running around a
1785  *      completely free ring for ever. If this bit is no set in the
1786  *      frame (by XmitFrame), this frame has never been sent or is
1787  *      already freed.
1788  *      The Tx descriptor ring lock must be held while calling this function !!!
1789  *
1790  * Returns:
1791  *      none
1792  */
1793 static void FreeTxDescriptors(
1794 SK_AC   *pAC,           /* pointer to the adapter context */
1795 TX_PORT *pTxPort)       /* pointer to destination port structure */
1796 {
1797 TXD     *pTxd;          /* pointer to the checked descriptor */
1798 TXD     *pNewTail;      /* pointer to 'end' of the ring */
1799 SK_U32  Control;        /* TBControl field of descriptor */
1800 SK_U64  PhysAddr;       /* address of DMA mapping */
1801
1802         pNewTail = pTxPort->pTxdRingTail;
1803         pTxd     = pNewTail;
1804         /*
1805         ** loop forever; exits if BMU_SW bit not set in start frame
1806         ** or BMU_OWN bit set in any frame
1807         */
1808         while (1) {
1809                 Control = pTxd->TBControl;
1810                 if ((Control & BMU_SW) == 0) {
1811                         /*
1812                         ** software controllable bit is set in first
1813                         ** fragment when given to BMU. Not set means that
1814                         ** this fragment was never sent or is already
1815                         ** freed ( -> ring completely free now).
1816                         */
1817                         pTxPort->pTxdRingTail = pTxd;
1818                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1819                         return;
1820                 }
1821                 if (Control & BMU_OWN) {
1822                         pTxPort->pTxdRingTail = pTxd;
1823                         if (pTxPort->TxdRingFree > 0) {
1824                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1825                         }
1826                         return;
1827                 }
1828
1829                 /*
1830                 ** release the DMA mapping, because until not unmapped
1831                 ** this buffer is considered being under control of the
1832                 ** adapter card!
1833                 */
1834                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
1835                 PhysAddr |= (SK_U64) pTxd->VDataLow;
1836                 pci_unmap_page(pAC->PciDev, PhysAddr,
1837                                  pTxd->pMBuf->len,
1838                                  PCI_DMA_TODEVICE);
1839
1840                 if (Control & BMU_EOF)
1841                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
1842
1843                 pTxPort->TxdRingFree++;
1844                 pTxd->TBControl &= ~BMU_SW;
1845                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
1846         } /* while(forever) */
1847 } /* FreeTxDescriptors */
1848
1849 /*****************************************************************************
1850  *
1851  *      FillRxRing - fill the receive ring with valid descriptors
1852  *
1853  * Description:
1854  *      This function fills the receive ring descriptors with data
1855  *      segments and makes them valid for the BMU.
1856  *      The active ring is filled completely, if possible.
1857  *      The non-active ring is filled only partial to save memory.
1858  *
1859  * Description of rx ring structure:
1860  *      head - points to the descriptor which will be used next by the BMU
1861  *      tail - points to the next descriptor to give to the BMU
1862  *
1863  * Returns:     N/A
1864  */
1865 static void FillRxRing(
1866 SK_AC           *pAC,           /* pointer to the adapter context */
1867 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
1868                                    should be filled */
1869 {
1870 unsigned long   Flags;
1871
1872         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
1873         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
1874                 if(!FillRxDescriptor(pAC, pRxPort))
1875                         break;
1876         }
1877         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
1878 } /* FillRxRing */
1879
1880
1881 /*****************************************************************************
1882  *
1883  *      FillRxDescriptor - fill one buffer into the receive ring
1884  *
1885  * Description:
1886  *      The function allocates a new receive buffer and
1887  *      puts it into the next descriptor.
1888  *
1889  * Returns:
1890  *      SK_TRUE - a buffer was added to the ring
1891  *      SK_FALSE - a buffer could not be added
1892  */
1893 static SK_BOOL FillRxDescriptor(
1894 SK_AC           *pAC,           /* pointer to the adapter context struct */
1895 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
1896 {
1897 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
1898 RXD             *pRxd;          /* the rxd to fill */
1899 SK_U16          Length;         /* data fragment length */
1900 SK_U64          PhysAddr;       /* physical address of a rx buffer */
1901
1902         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
1903         if (pMsgBlock == NULL) {
1904                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1905                         SK_DBGCAT_DRV_ENTRY,
1906                         ("%s: Allocation of rx buffer failed !\n",
1907                         pAC->dev[pRxPort->PortIndex]->name));
1908                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
1909                 return(SK_FALSE);
1910         }
1911         skb_reserve(pMsgBlock, 2); /* to align IP frames */
1912         /* skb allocated ok, so add buffer */
1913         pRxd = pRxPort->pRxdRingTail;
1914         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1915         pRxPort->RxdRingFree--;
1916         Length = pAC->RxBufSize;
1917         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1918                 virt_to_page(pMsgBlock->data),
1919                 ((unsigned long) pMsgBlock->data &
1920                 ~PAGE_MASK),
1921                 pAC->RxBufSize - 2,
1922                 PCI_DMA_FROMDEVICE);
1923
1924         pRxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1925         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1926         pRxd->pMBuf     = pMsgBlock;
1927         pRxd->RBControl = BMU_OWN       |
1928                           BMU_STF       |
1929                           BMU_IRQ_EOF   |
1930                           BMU_TCP_CHECK |
1931                           Length;
1932         return (SK_TRUE);
1933
1934 } /* FillRxDescriptor */
1935
1936
1937 /*****************************************************************************
1938  *
1939  *      ReQueueRxBuffer - fill one buffer back into the receive ring
1940  *
1941  * Description:
1942  *      Fill a given buffer back into the rx ring. The buffer
1943  *      has been previously allocated and aligned, and its phys.
1944  *      address calculated, so this is no more necessary.
1945  *
1946  * Returns: N/A
1947  */
1948 static void ReQueueRxBuffer(
1949 SK_AC           *pAC,           /* pointer to the adapter context struct */
1950 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
1951 struct sk_buff  *pMsg,          /* pointer to the buffer */
1952 SK_U32          PhysHigh,       /* phys address high dword */
1953 SK_U32          PhysLow)        /* phys address low dword */
1954 {
1955 RXD             *pRxd;          /* the rxd to fill */
1956 SK_U16          Length;         /* data fragment length */
1957
1958         pRxd = pRxPort->pRxdRingTail;
1959         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1960         pRxPort->RxdRingFree--;
1961         Length = pAC->RxBufSize;
1962
1963         pRxd->VDataLow  = PhysLow;
1964         pRxd->VDataHigh = PhysHigh;
1965         pRxd->pMBuf     = pMsg;
1966         pRxd->RBControl = BMU_OWN       |
1967                           BMU_STF       |
1968                           BMU_IRQ_EOF   |
1969                           BMU_TCP_CHECK |
1970                           Length;
1971         return;
1972 } /* ReQueueRxBuffer */
1973
1974 /*****************************************************************************
1975  *
1976  *      ReceiveIrq - handle a receive IRQ
1977  *
1978  * Description:
1979  *      This function is called when a receive IRQ is set.
1980  *      It walks the receive descriptor ring and sends up all
1981  *      frames that are complete.
1982  *
1983  * Returns:     N/A
1984  */
1985 static void ReceiveIrq(
1986         SK_AC           *pAC,                   /* pointer to adapter context */
1987         RX_PORT         *pRxPort,               /* pointer to receive port struct */
1988         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
1989 {
1990 RXD                             *pRxd;                  /* pointer to receive descriptors */
1991 SK_U32                  Control;                /* control field of descriptor */
1992 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
1993 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
1994 int                             FrameLength;    /* total length of received frame */
1995 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
1996 SK_EVPARA               EvPara;                 /* an event parameter union */
1997 unsigned long   Flags;                  /* for spin lock */
1998 int                             PortIndex = pRxPort->PortIndex;
1999 unsigned int    Offset;
2000 unsigned int    NumBytes;
2001 unsigned int    ForRlmt;
2002 SK_BOOL                 IsBc;
2003 SK_BOOL                 IsMc;
2004 SK_BOOL  IsBadFrame;                    /* Bad frame */
2005
2006 SK_U32                  FrameStat;
2007 SK_U64                  PhysAddr;
2008
2009 rx_start:
2010         /* do forever; exit if BMU_OWN found */
2011         for ( pRxd = pRxPort->pRxdRingHead ;
2012                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2013                   pRxd = pRxd->pNextRxd,
2014                   pRxPort->pRxdRingHead = pRxd,
2015                   pRxPort->RxdRingFree ++) {
2016
2017                 /*
2018                  * For a better understanding of this loop
2019                  * Go through every descriptor beginning at the head
2020                  * Please note: the ring might be completely received so the OWN bit
2021                  * set is not a good crirteria to leave that loop.
2022                  * Therefore the RingFree counter is used.
2023                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2024                  * to be checked next.
2025                  */
2026
2027                 Control = pRxd->RBControl;
2028
2029                 /* check if this descriptor is ready */
2030                 if ((Control & BMU_OWN) != 0) {
2031                         /* this descriptor is not yet ready */
2032                         /* This is the usual end of the loop */
2033                         /* We don't need to start the ring again */
2034                         FillRxRing(pAC, pRxPort);
2035                         return;
2036                 }
2037                 pAC->DynIrqModInfo.NbrProcessedDescr++;
2038
2039                 /* get length of frame and check it */
2040                 FrameLength = Control & BMU_BBC;
2041                 if (FrameLength > pAC->RxBufSize) {
2042                         goto rx_failed;
2043                 }
2044
2045                 /* check for STF and EOF */
2046                 if ((Control & (BMU_STF | BMU_EOF)) != (BMU_STF | BMU_EOF)) {
2047                         goto rx_failed;
2048                 }
2049
2050                 /* here we have a complete frame in the ring */
2051                 pMsg = pRxd->pMBuf;
2052
2053                 FrameStat = pRxd->FrameStat;
2054
2055                 /* check for frame length mismatch */
2056 #define XMR_FS_LEN_SHIFT        18
2057 #define GMR_FS_LEN_SHIFT        16
2058                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2059                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2060                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2061                                         SK_DBGCAT_DRV_RX_PROGRESS,
2062                                         ("skge: Frame length mismatch (%u/%u).\n",
2063                                         FrameLength,
2064                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2065                                 goto rx_failed;
2066                         }
2067                 }
2068                 else {
2069                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2070                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2071                                         SK_DBGCAT_DRV_RX_PROGRESS,
2072                                         ("skge: Frame length mismatch (%u/%u).\n",
2073                                         FrameLength,
2074                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2075                                 goto rx_failed;
2076                         }
2077                 }
2078
2079                 /* Set Rx Status */
2080                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2081                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2082                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2083                         IsBadFrame = (FrameStat &
2084                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2085                 } else {
2086                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2087                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2088                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2089                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2090                 }
2091
2092                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2093                         ("Received frame of length %d on port %d\n",
2094                         FrameLength, PortIndex));
2095                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2096                         ("Number of free rx descriptors: %d\n",
2097                         pRxPort->RxdRingFree));
2098 /* DumpMsg(pMsg, "Rx"); */
2099
2100                 if ((Control & BMU_STAT_VAL) != BMU_STAT_VAL || (IsBadFrame)) {
2101 #if 0
2102                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2103 #endif
2104                         /* there is a receive error in this frame */
2105                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2106                                 SK_DBGCAT_DRV_RX_PROGRESS,
2107                                 ("skge: Error in received frame, dropped!\n"
2108                                 "Control: %x\nRxStat: %x\n",
2109                                 Control, FrameStat));
2110
2111                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2112                                 pRxd->VDataHigh, pRxd->VDataLow);
2113
2114                         continue;
2115                 }
2116
2117                 /*
2118                  * if short frame then copy data to reduce memory waste
2119                  */
2120                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2121                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2122                         /*
2123                          * Short frame detected and allocation successfull
2124                          */
2125                         /* use new skb and copy data */
2126                         skb_reserve(pNewMsg, 2);
2127                         skb_put(pNewMsg, FrameLength);
2128                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2129                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2130
2131                         pci_dma_sync_single_for_cpu(pAC->PciDev,
2132                                                     (dma_addr_t) PhysAddr,
2133                                                     FrameLength,
2134                                                     PCI_DMA_FROMDEVICE);
2135                         memcpy(pNewMsg->data, pMsg, FrameLength);
2136
2137                         pci_dma_sync_single_for_device(pAC->PciDev,
2138                                                        (dma_addr_t) PhysAddr,
2139                                                        FrameLength,
2140                                                        PCI_DMA_FROMDEVICE);
2141                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2142                                 pRxd->VDataHigh, pRxd->VDataLow);
2143
2144                         pMsg = pNewMsg;
2145
2146                 }
2147                 else {
2148                         /*
2149                          * if large frame, or SKB allocation failed, pass
2150                          * the SKB directly to the networking
2151                          */
2152
2153                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2154                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2155
2156                         /* release the DMA mapping */
2157                         pci_unmap_single(pAC->PciDev,
2158                                          PhysAddr,
2159                                          pAC->RxBufSize - 2,
2160                                          PCI_DMA_FROMDEVICE);
2161
2162                         /* set length in message */
2163                         skb_put(pMsg, FrameLength);
2164                 } /* frame > SK_COPY_TRESHOLD */
2165
2166                 if (pRxPort->RxCsum) {
2167                         pMsg->csum = pRxd->TcpSums;
2168                         pMsg->ip_summed = CHECKSUM_HW;
2169                 }
2170
2171                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2172                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2173 #if 0
2174                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2175 #endif
2176                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2177                         IsBc, &Offset, &NumBytes);
2178                 if (NumBytes != 0) {
2179 #if 0
2180                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2181 #endif
2182                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2183                                 &pMsg->data[Offset],
2184                                 IsBc, IsMc, &ForRlmt);
2185                 }
2186                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2187                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2188                         /* send up only frames from active port */
2189                         if ((PortIndex == pAC->ActivePort) ||
2190                                 (pAC->RlmtNets == 2)) {
2191                                 /* frame for upper layer */
2192                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2193 #ifdef xDEBUG
2194                                 DumpMsg(pMsg, "Rx");
2195 #endif
2196                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2197                                         FrameLength, pRxPort->PortIndex);
2198
2199                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2200                                 pMsg->protocol = eth_type_trans(pMsg,
2201                                         pAC->dev[pRxPort->PortIndex]);
2202                                 netif_rx(pMsg);
2203                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2204                         }
2205                         else {
2206                                 /* drop frame */
2207                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2208                                         SK_DBGCAT_DRV_RX_PROGRESS,
2209                                         ("D"));
2210                                 DEV_KFREE_SKB(pMsg);
2211                         }
2212
2213                 } /* if not for rlmt */
2214                 else {
2215                         /* packet for rlmt */
2216                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2217                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2218                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2219                                 pAC->IoBase, FrameLength);
2220                         if (pRlmtMbuf != NULL) {
2221                                 pRlmtMbuf->pNext = NULL;
2222                                 pRlmtMbuf->Length = FrameLength;
2223                                 pRlmtMbuf->PortIdx = PortIndex;
2224                                 EvPara.pParaPtr = pRlmtMbuf;
2225                                 memcpy((char*)(pRlmtMbuf->pData),
2226                                            (char*)(pMsg->data),
2227                                            FrameLength);
2228
2229                                 /* SlowPathLock needed? */
2230                                 if (SlowPathLock == SK_TRUE) {
2231                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2232                                         SkEventQueue(pAC, SKGE_RLMT,
2233                                                 SK_RLMT_PACKET_RECEIVED,
2234                                                 EvPara);
2235                                         pAC->CheckQueue = SK_TRUE;
2236                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2237                                 } else {
2238                                         SkEventQueue(pAC, SKGE_RLMT,
2239                                                 SK_RLMT_PACKET_RECEIVED,
2240                                                 EvPara);
2241                                         pAC->CheckQueue = SK_TRUE;
2242                                 }
2243
2244                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2245                                         SK_DBGCAT_DRV_RX_PROGRESS,
2246                                         ("Q"));
2247                         }
2248                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2249                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2250                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2251                                 SK_RLMT_RX_PROTOCOL) {
2252                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2253                                 pMsg->protocol = eth_type_trans(pMsg,
2254                                         pAC->dev[pRxPort->PortIndex]);
2255                                 netif_rx(pMsg);
2256                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2257                         }
2258                         else {
2259                                 DEV_KFREE_SKB(pMsg);
2260                         }
2261
2262                 } /* if packet for rlmt */
2263         } /* for ... scanning the RXD ring */
2264
2265         /* RXD ring is empty -> fill and restart */
2266         FillRxRing(pAC, pRxPort);
2267         /* do not start if called from Close */
2268         if (pAC->BoardLevel > SK_INIT_DATA) {
2269                 ClearAndStartRx(pAC, PortIndex);
2270         }
2271         return;
2272
2273 rx_failed:
2274         /* remove error frame */
2275         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2276                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2277
2278         /* release the DMA mapping */
2279
2280         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2281         PhysAddr |= (SK_U64) pRxd->VDataLow;
2282         pci_unmap_page(pAC->PciDev,
2283                          PhysAddr,
2284                          pAC->RxBufSize - 2,
2285                          PCI_DMA_FROMDEVICE);
2286         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2287         pRxd->pMBuf = NULL;
2288         pRxPort->RxdRingFree++;
2289         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2290         goto rx_start;
2291
2292 } /* ReceiveIrq */
2293
2294
2295 /*****************************************************************************
2296  *
2297  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2298  *
2299  * Description:
2300  *      This function sends a start command and a clear interrupt
2301  *      command for one receive queue to the BMU.
2302  *
2303  * Returns: N/A
2304  *      none
2305  */
2306 static void ClearAndStartRx(
2307 SK_AC   *pAC,           /* pointer to the adapter context */
2308 int     PortIndex)      /* index of the receive port (XMAC) */
2309 {
2310         SK_OUT8(pAC->IoBase,
2311                 RxQueueAddr[PortIndex]+Q_CSR,
2312                 CSR_START | CSR_IRQ_CL_F);
2313 } /* ClearAndStartRx */
2314
2315
2316 /*****************************************************************************
2317  *
2318  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2319  *
2320  * Description:
2321  *      This function sends a clear tx IRQ command for one
2322  *      transmit queue to the BMU.
2323  *
2324  * Returns: N/A
2325  */
2326 static void ClearTxIrq(
2327 SK_AC   *pAC,           /* pointer to the adapter context */
2328 int     PortIndex,      /* index of the transmit port (XMAC) */
2329 int     Prio)           /* priority or normal queue */
2330 {
2331         SK_OUT8(pAC->IoBase,
2332                 TxQueueAddr[PortIndex][Prio]+Q_CSR,
2333                 CSR_IRQ_CL_F);
2334 } /* ClearTxIrq */
2335
2336
2337 /*****************************************************************************
2338  *
2339  *      ClearRxRing - remove all buffers from the receive ring
2340  *
2341  * Description:
2342  *      This function removes all receive buffers from the ring.
2343  *      The receive BMU must be stopped before calling this function.
2344  *
2345  * Returns: N/A
2346  */
2347 static void ClearRxRing(
2348 SK_AC   *pAC,           /* pointer to adapter context */
2349 RX_PORT *pRxPort)       /* pointer to rx port struct */
2350 {
2351 RXD             *pRxd;  /* pointer to the current descriptor */
2352 unsigned long   Flags;
2353 SK_U64          PhysAddr;
2354
2355         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2356                 return;
2357         }
2358         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2359         pRxd = pRxPort->pRxdRingHead;
2360         do {
2361                 if (pRxd->pMBuf != NULL) {
2362
2363                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2364                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2365                         pci_unmap_page(pAC->PciDev,
2366                                          PhysAddr,
2367                                          pAC->RxBufSize - 2,
2368                                          PCI_DMA_FROMDEVICE);
2369                         DEV_KFREE_SKB(pRxd->pMBuf);
2370                         pRxd->pMBuf = NULL;
2371                 }
2372                 pRxd->RBControl &= BMU_OWN;
2373                 pRxd = pRxd->pNextRxd;
2374                 pRxPort->RxdRingFree++;
2375         } while (pRxd != pRxPort->pRxdRingTail);
2376         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
2377         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2378 } /* ClearRxRing */
2379
2380 /*****************************************************************************
2381  *
2382  *      ClearTxRing - remove all buffers from the transmit ring
2383  *
2384  * Description:
2385  *      This function removes all transmit buffers from the ring.
2386  *      The transmit BMU must be stopped before calling this function
2387  *      and transmitting at the upper level must be disabled.
2388  *      The BMU own bit of all descriptors is cleared, the rest is
2389  *      done by calling FreeTxDescriptors.
2390  *
2391  * Returns: N/A
2392  */
2393 static void ClearTxRing(
2394 SK_AC   *pAC,           /* pointer to adapter context */
2395 TX_PORT *pTxPort)       /* pointer to tx prt struct */
2396 {
2397 TXD             *pTxd;          /* pointer to the current descriptor */
2398 int             i;
2399 unsigned long   Flags;
2400
2401         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2402         pTxd = pTxPort->pTxdRingHead;
2403         for (i=0; i<pAC->TxDescrPerRing; i++) {
2404                 pTxd->TBControl &= ~BMU_OWN;
2405                 pTxd = pTxd->pNextTxd;
2406         }
2407         FreeTxDescriptors(pAC, pTxPort);
2408         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2409 } /* ClearTxRing */
2410
2411 /*****************************************************************************
2412  *
2413  *      SkGeSetMacAddr - Set the hardware MAC address
2414  *
2415  * Description:
2416  *      This function sets the MAC address used by the adapter.
2417  *
2418  * Returns:
2419  *      0, if everything is ok
2420  *      !=0, on error
2421  */
2422 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
2423 {
2424
2425 DEV_NET *pNet = netdev_priv(dev);
2426 SK_AC   *pAC = pNet->pAC;
2427
2428 struct sockaddr *addr = p;
2429 unsigned long   Flags;
2430
2431         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2432                 ("SkGeSetMacAddr starts now...\n"));
2433         if(netif_running(dev))
2434                 return -EBUSY;
2435
2436         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
2437
2438         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2439
2440         if (pAC->RlmtNets == 2)
2441                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
2442                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2443         else
2444                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
2445                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2446
2447
2448
2449         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2450         return 0;
2451 } /* SkGeSetMacAddr */
2452
2453
2454 /*****************************************************************************
2455  *
2456  *      SkGeSetRxMode - set receive mode
2457  *
2458  * Description:
2459  *      This function sets the receive mode of an adapter. The adapter
2460  *      supports promiscuous mode, allmulticast mode and a number of
2461  *      multicast addresses. If more multicast addresses the available
2462  *      are selected, a hash function in the hardware is used.
2463  *
2464  * Returns:
2465  *      0, if everything is ok
2466  *      !=0, on error
2467  */
2468 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
2469 {
2470
2471 DEV_NET         *pNet;
2472 SK_AC           *pAC;
2473
2474 struct dev_mc_list      *pMcList;
2475 int                     i;
2476 int                     PortIdx;
2477 unsigned long           Flags;
2478
2479         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2480                 ("SkGeSetRxMode starts now... "));
2481
2482         pNet = netdev_priv(dev);
2483         pAC = pNet->pAC;
2484         if (pAC->RlmtNets == 1)
2485                 PortIdx = pAC->ActivePort;
2486         else
2487                 PortIdx = pNet->NetNr;
2488
2489         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2490         if (dev->flags & IFF_PROMISC) {
2491                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2492                         ("PROMISCUOUS mode\n"));
2493                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2494                         SK_PROM_MODE_LLC);
2495         } else if (dev->flags & IFF_ALLMULTI) {
2496                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2497                         ("ALLMULTI mode\n"));
2498                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2499                         SK_PROM_MODE_ALL_MC);
2500         } else {
2501                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2502                         SK_PROM_MODE_NONE);
2503                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
2504
2505                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2506                         ("Number of MC entries: %d ", dev->mc_count));
2507
2508                 pMcList = dev->mc_list;
2509                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
2510                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
2511                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
2512                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
2513                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
2514                                 pMcList->dmi_addr[0],
2515                                 pMcList->dmi_addr[1],
2516                                 pMcList->dmi_addr[2],
2517                                 pMcList->dmi_addr[3],
2518                                 pMcList->dmi_addr[4],
2519                                 pMcList->dmi_addr[5]));
2520                 }
2521                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
2522         }
2523         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2524
2525         return;
2526 } /* SkGeSetRxMode */
2527
2528
2529 /*****************************************************************************
2530  *
2531  *      SkGeChangeMtu - set the MTU to another value
2532  *
2533  * Description:
2534  *      This function sets is called whenever the MTU size is changed
2535  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
2536  *      ethernet MTU size, long frame support is activated.
2537  *
2538  * Returns:
2539  *      0, if everything is ok
2540  *      !=0, on error
2541  */
2542 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
2543 {
2544 DEV_NET         *pNet;
2545 struct net_device *pOtherDev;
2546 SK_AC           *pAC;
2547 unsigned long   Flags;
2548 int             i;
2549 SK_EVPARA       EvPara;
2550
2551         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2552                 ("SkGeChangeMtu starts now...\n"));
2553
2554         pNet = netdev_priv(dev);
2555         pAC  = pNet->pAC;
2556
2557         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
2558                 return -EINVAL;
2559         }
2560
2561         if(pAC->BoardLevel != SK_INIT_RUN) {
2562                 return -EINVAL;
2563         }
2564
2565 #ifdef SK_DIAG_SUPPORT
2566         if (pAC->DiagModeActive == DIAG_ACTIVE) {
2567                 if (pAC->DiagFlowCtrl == SK_FALSE) {
2568                         return -1; /* still in use, deny any actions of MTU */
2569                 } else {
2570                         pAC->DiagFlowCtrl = SK_FALSE;
2571                 }
2572         }
2573 #endif
2574
2575         pOtherDev = pAC->dev[1 - pNet->NetNr];
2576
2577         if ( netif_running(pOtherDev) && (pOtherDev->mtu > 1500)
2578              && (NewMtu <= 1500))
2579                 return 0;
2580
2581         pAC->RxBufSize = NewMtu + 32;
2582         dev->mtu = NewMtu;
2583
2584         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2585                 ("New MTU: %d\n", NewMtu));
2586
2587         /*
2588         ** Prevent any reconfiguration while changing the MTU
2589         ** by disabling any interrupts
2590         */
2591         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
2592         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2593
2594         /*
2595         ** Notify RLMT that any ports are to be stopped
2596         */
2597         EvPara.Para32[0] =  0;
2598         EvPara.Para32[1] = -1;
2599         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2600                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2601                 EvPara.Para32[0] =  1;
2602                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2603         } else {
2604                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2605         }
2606
2607         /*
2608         ** After calling the SkEventDispatcher(), RLMT is aware about
2609         ** the stopped ports -> configuration can take place!
2610         */
2611         SkEventDispatcher(pAC, pAC->IoBase);
2612
2613         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2614                 spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2615                 netif_stop_queue(pAC->dev[i]);
2616
2617         }
2618
2619         /*
2620         ** Depending on the desired MTU size change, a different number of
2621         ** RX buffers need to be allocated
2622         */
2623         if (NewMtu > 1500) {
2624             /*
2625             ** Use less rx buffers
2626             */
2627             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2628                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2629                     pAC->RxPort[i].RxFillLimit =  pAC->RxDescrPerRing -
2630                                                  (pAC->RxDescrPerRing / 4);
2631                 } else {
2632                     if (i == pAC->ActivePort) {
2633                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2634                                                     (pAC->RxDescrPerRing / 4);
2635                     } else {
2636                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2637                                                     (pAC->RxDescrPerRing / 10);
2638                     }
2639                 }
2640             }
2641         } else {
2642             /*
2643             ** Use the normal amount of rx buffers
2644             */
2645             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2646                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2647                     pAC->RxPort[i].RxFillLimit = 1;
2648                 } else {
2649                     if (i == pAC->ActivePort) {
2650                         pAC->RxPort[i].RxFillLimit = 1;
2651                     } else {
2652                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2653                                                     (pAC->RxDescrPerRing / 4);
2654                     }
2655                 }
2656             }
2657         }
2658
2659         SkGeDeInit(pAC, pAC->IoBase);
2660
2661         /*
2662         ** enable/disable hardware support for long frames
2663         */
2664         if (NewMtu > 1500) {
2665 // pAC->JumboActivated = SK_TRUE; /* is never set back !!! */
2666                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
2667         } else {
2668             if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2669                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
2670             } else {
2671                 pAC->GIni.GIPortUsage = SK_RED_LINK;
2672             }
2673         }
2674
2675         SkGeInit(   pAC, pAC->IoBase, SK_INIT_IO);
2676         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
2677         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
2678         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
2679         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
2680         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
2681         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
2682
2683         /*
2684         ** tschilling:
2685         ** Speed and others are set back to default in level 1 init!
2686         */
2687         GetConfiguration(pAC);
2688
2689         SkGeInit(   pAC, pAC->IoBase, SK_INIT_RUN);
2690         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_RUN);
2691         SkEventInit(pAC, pAC->IoBase, SK_INIT_RUN);
2692         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_RUN);
2693         SkAddrInit( pAC, pAC->IoBase, SK_INIT_RUN);
2694         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_RUN);
2695         SkTimerInit(pAC, pAC->IoBase, SK_INIT_RUN);
2696
2697         /*
2698         ** clear and reinit the rx rings here
2699         */
2700         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2701                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
2702                 ClearRxRing(pAC, &pAC->RxPort[i]);
2703                 FillRxRing(pAC, &pAC->RxPort[i]);
2704
2705                 /*
2706                 ** Enable transmit descriptor polling
2707                 */
2708                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
2709                 FillRxRing(pAC, &pAC->RxPort[i]);
2710         };
2711
2712         SkGeYellowLED(pAC, pAC->IoBase, 1);
2713         SkDimEnableModerationIfNeeded(pAC);
2714         SkDimDisplayModerationSettings(pAC);
2715
2716         netif_start_queue(pAC->dev[pNet->PortNr]);
2717         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
2718                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2719         }
2720
2721         /*
2722         ** Enable Interrupts again
2723         */
2724         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
2725         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
2726
2727         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2728         SkEventDispatcher(pAC, pAC->IoBase);
2729
2730         /*
2731         ** Notify RLMT about the changing and restarting one (or more) ports
2732         */
2733         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2734                 EvPara.Para32[0] = pAC->RlmtNets;
2735                 EvPara.Para32[1] = -1;
2736                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, EvPara);
2737                 EvPara.Para32[0] = pNet->PortNr;
2738                 EvPara.Para32[1] = -1;
2739                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2740
2741                 if (netif_running(pOtherDev)) {
2742                         DEV_NET *pOtherNet = netdev_priv(pOtherDev);
2743                         EvPara.Para32[0] = pOtherNet->PortNr;
2744                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2745                 }
2746         } else {
2747                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2748         }
2749
2750         SkEventDispatcher(pAC, pAC->IoBase);
2751         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2752
2753         /*
2754         ** While testing this driver with latest kernel 2.5 (2.5.70), it
2755         ** seems as if upper layers have a problem to handle a successful
2756         ** return value of '0'. If such a zero is returned, the complete
2757         ** system hangs for several minutes (!), which is in acceptable.
2758         **
2759         ** Currently it is not clear, what the exact reason for this problem
2760         ** is. The implemented workaround for 2.5 is to return the desired
2761         ** new MTU size if all needed changes for the new MTU size where
2762         ** performed. In kernels 2.2 and 2.4, a zero value is returned,
2763         ** which indicates the successful change of the mtu-size.
2764         */
2765         return NewMtu;
2766
2767 } /* SkGeChangeMtu */
2768
2769
2770 /*****************************************************************************
2771  *
2772  *      SkGeStats - return ethernet device statistics
2773  *
2774  * Description:
2775  *      This function return statistic data about the ethernet device
2776  *      to the operating system.
2777  *
2778  * Returns:
2779  *      pointer to the statistic structure.
2780  */
2781 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
2782 {
2783 DEV_NET *pNet = netdev_priv(dev);
2784 SK_AC   *pAC = pNet->pAC;
2785 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
2786 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
2787 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
2788 unsigned int    Size;                   /* size of pnmi struct */
2789 unsigned long   Flags;                  /* for spin lock */
2790
2791         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2792                 ("SkGeStats starts now...\n"));
2793         pPnmiStruct = &pAC->PnmiStruct;
2794
2795 #ifdef SK_DIAG_SUPPORT
2796         if ((pAC->DiagModeActive == DIAG_NOTACTIVE) &&
2797                 (pAC->BoardLevel == SK_INIT_RUN)) {
2798 #endif
2799         SK_MEMSET(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
2800         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2801         Size = SK_PNMI_STRUCT_SIZE;
2802                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
2803         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2804 #ifdef SK_DIAG_SUPPORT
2805         }
2806 #endif
2807
2808         pPnmiStat = &pPnmiStruct->Stat[0];
2809         pPnmiConf = &pPnmiStruct->Conf[0];
2810
2811         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
2812         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
2813         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
2814         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
2815
2816         if (dev->mtu <= 1500) {
2817                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
2818         } else {
2819                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
2820                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
2821         }
2822
2823
2824         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
2825                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
2826
2827         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2828         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
2829         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
2830         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
2831         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2832
2833         /* detailed rx_errors: */
2834         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
2835         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2836         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
2837         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
2838         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2839         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
2840
2841         /* detailed tx_errors */
2842         pAC->stats.tx_aborted_errors = (SK_U32) 0;
2843         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2844         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
2845         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2846         pAC->stats.tx_window_errors = (SK_U32) 0;
2847
2848         return(&pAC->stats);
2849 } /* SkGeStats */
2850
2851
2852 /*****************************************************************************
2853  *
2854  *      SkGeIoctl - IO-control function
2855  *
2856  * Description:
2857  *      This function is called if an ioctl is issued on the device.
2858  *      There are three subfunction for reading, writing and test-writing
2859  *      the private MIB data structure (usefull for SysKonnect-internal tools).
2860  *
2861  * Returns:
2862  *      0, if everything is ok
2863  *      !=0, on error
2864  */
2865 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
2866 {
2867 DEV_NET         *pNet;
2868 SK_AC           *pAC;
2869 void            *pMemBuf;
2870 struct pci_dev  *pdev = NULL;
2871 SK_GE_IOCTL     Ioctl;
2872 unsigned int    Err = 0;
2873 int             Size = 0;
2874 int             Ret = 0;
2875 unsigned int    Length = 0;
2876 int             HeaderLength = sizeof(SK_U32) + sizeof(SK_U32);
2877
2878         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2879                 ("SkGeIoctl starts now...\n"));
2880
2881         pNet = netdev_priv(dev);
2882         pAC = pNet->pAC;
2883
2884         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
2885                 return -EFAULT;
2886         }
2887
2888         switch(cmd) {
2889         case SK_IOCTL_SETMIB:
2890         case SK_IOCTL_PRESETMIB:
2891                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2892         case SK_IOCTL_GETMIB:
2893                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
2894                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
2895                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
2896                         return -EFAULT;
2897                 }
2898                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
2899                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
2900                         Ioctl.Len<Size? Ioctl.Len : Size)) {
2901                         return -EFAULT;
2902                 }
2903                 Ioctl.Len = Size;
2904                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2905                         return -EFAULT;
2906                 }
2907                 break;
2908         case SK_IOCTL_GEN:
2909                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2910                         Length = Ioctl.Len;
2911                 } else {
2912                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2913                 }
2914                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2915                         return -ENOMEM;
2916                 }
2917                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2918                         Err = -EFAULT;
2919                         goto fault_gen;
2920                 }
2921                 if ((Ret = SkPnmiGenIoctl(pAC, pAC->IoBase, pMemBuf, &Length, 0)) < 0) {
2922                         Err = -EFAULT;
2923                         goto fault_gen;
2924                 }
2925                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2926                         Err = -EFAULT;
2927                         goto fault_gen;
2928                 }
2929                 Ioctl.Len = Length;
2930                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2931                         Err = -EFAULT;
2932                         goto fault_gen;
2933                 }
2934 fault_gen:
2935                 kfree(pMemBuf); /* cleanup everything */
2936                 break;
2937 #ifdef SK_DIAG_SUPPORT
2938        case SK_IOCTL_DIAG:
2939                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2940                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2941                         Length = Ioctl.Len;
2942                 } else {
2943                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2944                 }
2945                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2946                         return -ENOMEM;
2947                 }
2948                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2949                         Err = -EFAULT;
2950                         goto fault_diag;
2951                 }
2952                 pdev = pAC->PciDev;
2953                 Length = 3 * sizeof(SK_U32);  /* Error, Bus and Device */
2954                 /*
2955                 ** While coding this new IOCTL interface, only a few lines of code
2956                 ** are to to be added. Therefore no dedicated function has been
2957                 ** added. If more functionality is added, a separate function
2958                 ** should be used...
2959                 */
2960                 * ((SK_U32 *)pMemBuf) = 0;
2961                 * ((SK_U32 *)pMemBuf + 1) = pdev->bus->number;
2962                 * ((SK_U32 *)pMemBuf + 2) = ParseDeviceNbrFromSlotName(pci_name(pdev));
2963                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2964                         Err = -EFAULT;
2965                         goto fault_diag;
2966                 }
2967                 Ioctl.Len = Length;
2968                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2969                         Err = -EFAULT;
2970                         goto fault_diag;
2971                 }
2972 fault_diag:
2973                 kfree(pMemBuf); /* cleanup everything */
2974                 break;
2975 #endif
2976         default:
2977                 Err = -EOPNOTSUPP;
2978         }
2979
2980         return(Err);
2981
2982 } /* SkGeIoctl */
2983
2984
2985 /*****************************************************************************
2986  *
2987  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
2988  *
2989  * Description:
2990  *      This function reads/writes the MIB data using PNMI (Private Network
2991  *      Management Interface).
2992  *      The destination for the data must be provided with the
2993  *      ioctl call and is given to the driver in the form of
2994  *      a user space address.
2995  *      Copying from the user-provided data area into kernel messages
2996  *      and back is done by copy_from_user and copy_to_user calls in
2997  *      SkGeIoctl.
2998  *
2999  * Returns:
3000  *      returned size from PNMI call
3001  */
3002 static int SkGeIocMib(
3003 DEV_NET         *pNet,  /* pointer to the adapter context */
3004 unsigned int    Size,   /* length of ioctl data */
3005 int             mode)   /* flag for set/preset */
3006 {
3007 unsigned long   Flags;  /* for spin lock */
3008 SK_AC           *pAC;
3009
3010         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3011                 ("SkGeIocMib starts now...\n"));
3012         pAC = pNet->pAC;
3013         /* access MIB */
3014         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3015         switch(mode) {
3016         case SK_IOCTL_GETMIB:
3017                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3018                         pNet->NetNr);
3019                 break;
3020         case SK_IOCTL_PRESETMIB:
3021                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3022                         pNet->NetNr);
3023                 break;
3024         case SK_IOCTL_SETMIB:
3025                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3026                         pNet->NetNr);
3027                 break;
3028         default:
3029                 break;
3030         }
3031         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3032         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3033                 ("MIB data access succeeded\n"));
3034         return (Size);
3035 } /* SkGeIocMib */
3036
3037
3038 /*****************************************************************************
3039  *
3040  *      GetConfiguration - read configuration information
3041  *
3042  * Description:
3043  *      This function reads per-adapter configuration information from
3044  *      the options provided on the command line.
3045  *
3046  * Returns:
3047  *      none
3048  */
3049 static void GetConfiguration(
3050 SK_AC   *pAC)   /* pointer to the adapter context structure */
3051 {
3052 SK_I32  Port;           /* preferred port */
3053 SK_BOOL AutoSet;
3054 SK_BOOL DupSet;
3055 int     LinkSpeed          = SK_LSPEED_AUTO;    /* Link speed */
3056 int     AutoNeg            = 1;                 /* autoneg off (0) or on (1) */
3057 int     DuplexCap          = 0;                 /* 0=both,1=full,2=half */
3058 int     FlowCtrl           = SK_FLOW_MODE_SYM_OR_REM;   /* FlowControl  */
3059 int     MSMode             = SK_MS_MODE_AUTO;   /* master/slave mode    */
3060
3061 SK_BOOL IsConTypeDefined   = SK_TRUE;
3062 SK_BOOL IsLinkSpeedDefined = SK_TRUE;
3063 SK_BOOL IsFlowCtrlDefined  = SK_TRUE;
3064 SK_BOOL IsRoleDefined      = SK_TRUE;
3065 SK_BOOL IsModeDefined      = SK_TRUE;
3066 /*
3067  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3068  *      parameter. The mapping is described by this table:
3069  *      DuplexCap ->    |       both    |       full    |       half    |
3070  *      AutoNeg         |               |               |               |
3071  *      -----------------------------------------------------------------
3072  *      Off             |    illegal    |       Full    |       Half    |
3073  *      -----------------------------------------------------------------
3074  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3075  *      -----------------------------------------------------------------
3076  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3077  */
3078 int     Capabilities[3][3] =
3079                 { {                -1, SK_LMODE_FULL     , SK_LMODE_HALF     },
3080                   {SK_LMODE_AUTOBOTH , SK_LMODE_AUTOFULL , SK_LMODE_AUTOHALF },
3081                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3082
3083 #define DC_BOTH 0
3084 #define DC_FULL 1
3085 #define DC_HALF 2
3086 #define AN_OFF  0
3087 #define AN_ON   1
3088 #define AN_SENS 2
3089 #define M_CurrPort pAC->GIni.GP[Port]
3090
3091
3092         /*
3093         ** Set the default values first for both ports!
3094         */
3095         for (Port = 0; Port < SK_MAX_MACS; Port++) {
3096                 M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3097                 M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3098                 M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3099                 M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3100         }
3101
3102         /*
3103         ** Check merged parameter ConType. If it has not been used,
3104         ** verify any other parameter (e.g. AutoNeg) and use default values.
3105         **
3106         ** Stating both ConType and other lowlevel link parameters is also
3107         ** possible. If this is the case, the passed ConType-parameter is
3108         ** overwritten by the lowlevel link parameter.
3109         **
3110         ** The following settings are used for a merged ConType-parameter:
3111         **
3112         ** ConType   DupCap   AutoNeg   FlowCtrl      Role      Speed
3113         ** -------   ------   -------   --------   ----------   -----
3114         **  Auto      Both      On      SymOrRem      Auto       Auto
3115         **  100FD     Full      Off       None      <ignored>    100
3116         **  100HD     Half      Off       None      <ignored>    100
3117         **  10FD      Full      Off       None      <ignored>    10
3118         **  10HD      Half      Off       None      <ignored>    10
3119         **
3120         ** This ConType parameter is used for all ports of the adapter!
3121         */
3122         if ( (ConType != NULL)                &&
3123              (pAC->Index < SK_MAX_CARD_PARAM) &&
3124              (ConType[pAC->Index] != NULL) ) {
3125
3126                         /* Check chipset family */
3127                         if ((!pAC->ChipsetType) &&
3128                                 (strcmp(ConType[pAC->Index],"Auto")!=0) &&
3129                                 (strcmp(ConType[pAC->Index],"")!=0)) {
3130                                 /* Set the speed parameter back */
3131                                         printk("sk98lin: Illegal value \"%s\" "
3132                                                         "for ConType."
3133                                                         " Using Auto.\n",
3134                                                         ConType[pAC->Index]);
3135
3136                                         sprintf(ConType[pAC->Index], "Auto");
3137                         }
3138
3139                                 if (strcmp(ConType[pAC->Index],"")==0) {
3140                         IsConTypeDefined = SK_FALSE; /* No ConType defined */
3141                                 } else if (strcmp(ConType[pAC->Index],"Auto")==0) {
3142                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3143                         M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3144                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3145                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3146                         M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3147                     }
3148                 } else if (strcmp(ConType[pAC->Index],"100FD")==0) {
3149                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3150                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3151                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3152                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3153                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3154                     }
3155                 } else if (strcmp(ConType[pAC->Index],"100HD")==0) {
3156                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3157                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3158                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3159                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3160                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3161                     }
3162                 } else if (strcmp(ConType[pAC->Index],"10FD")==0) {
3163                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3164                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3165                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3166                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3167                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3168                     }
3169                 } else if (strcmp(ConType[pAC->Index],"10HD")==0) {
3170                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3171                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3172                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3173                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3174                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3175                     }
3176                 } else {
3177                     printk("sk98lin: Illegal value \"%s\" for ConType\n",
3178                         ConType[pAC->Index]);
3179                     IsConTypeDefined = SK_FALSE; /* Wrong ConType defined */
3180                 }
3181         } else {
3182             IsConTypeDefined = SK_FALSE; /* No ConType defined */
3183         }
3184
3185         /*
3186         ** Parse any parameter settings for port A:
3187         ** a) any LinkSpeed stated?
3188         */
3189         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3190                 Speed_A[pAC->Index] != NULL) {
3191                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3192                     IsLinkSpeedDefined = SK_FALSE;
3193                 } else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3194                     LinkSpeed = SK_LSPEED_AUTO;
3195                 } else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3196                     LinkSpeed = SK_LSPEED_10MBPS;
3197                 } else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3198                     LinkSpeed = SK_LSPEED_100MBPS;
3199                 } else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3200                     LinkSpeed = SK_LSPEED_1000MBPS;
3201                 } else {
3202                     printk("sk98lin: Illegal value \"%s\" for Speed_A\n",
3203                         Speed_A[pAC->Index]);
3204                     IsLinkSpeedDefined = SK_FALSE;
3205                 }
3206         } else {
3207             IsLinkSpeedDefined = SK_FALSE;
3208         }
3209
3210         /*
3211         ** Check speed parameter:
3212         **    Only copper type adapter and GE V2 cards
3213         */
3214         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3215                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3216                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3217                 printk("sk98lin: Illegal value for Speed_A. "
3218                         "Not a copper card or GE V2 card\n    Using "
3219                         "speed 1000\n");
3220                 LinkSpeed = SK_LSPEED_1000MBPS;
3221         }
3222
3223         /*
3224         ** Decide whether to set new config value if somethig valid has
3225         ** been received.
3226         */
3227         if (IsLinkSpeedDefined) {
3228                 pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3229         }
3230
3231         /*
3232         ** b) Any Autonegotiation and DuplexCapabilities set?
3233         **    Please note that both belong together...
3234         */
3235         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3236         AutoSet = SK_FALSE;
3237         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3238                 AutoNeg_A[pAC->Index] != NULL) {
3239                 AutoSet = SK_TRUE;
3240                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3241                     AutoSet = SK_FALSE;
3242                 } else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3243                     AutoNeg = AN_ON;
3244                 } else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3245                     AutoNeg = AN_OFF;
3246                 } else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3247                     AutoNeg = AN_SENS;
3248                 } else {
3249                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_A\n",
3250                         AutoNeg_A[pAC->Index]);
3251                 }
3252         }
3253
3254         DuplexCap = DC_BOTH;
3255         DupSet    = SK_FALSE;
3256         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3257                 DupCap_A[pAC->Index] != NULL) {
3258                 DupSet = SK_TRUE;
3259                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3260                     DupSet = SK_FALSE;
3261                 } else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3262                     DuplexCap = DC_BOTH;
3263                 } else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3264                     DuplexCap = DC_FULL;
3265                 } else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3266                     DuplexCap = DC_HALF;
3267                 } else {
3268                     printk("sk98lin: Illegal value \"%s\" for DupCap_A\n",
3269                         DupCap_A[pAC->Index]);
3270                 }
3271         }
3272
3273         /*
3274         ** Check for illegal combinations
3275         */
3276         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3277                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3278                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3279                 (pAC->ChipsetType)) {
3280                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3281                                         "    Using Full Duplex.\n");
3282                                 DuplexCap = DC_FULL;
3283         }
3284
3285         if ( AutoSet && AutoNeg==AN_SENS && DupSet) {
3286                 printk("sk98lin, Port A: DuplexCapabilities"
3287                         " ignored using Sense mode\n");
3288         }
3289
3290         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3291                 printk("sk98lin: Port A: Illegal combination"
3292                         " of values AutoNeg. and DuplexCap.\n    Using "
3293                         "Full Duplex\n");
3294                 DuplexCap = DC_FULL;
3295         }
3296
3297         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3298                 DuplexCap = DC_FULL;
3299         }
3300
3301         if (!AutoSet && DupSet) {
3302                 printk("sk98lin: Port A: Duplex setting not"
3303                         " possible in\n    default AutoNegotiation mode"
3304                         " (Sense).\n    Using AutoNegotiation On\n");
3305                 AutoNeg = AN_ON;
3306         }
3307
3308         /*
3309         ** set the desired mode
3310         */
3311         if (AutoSet || DupSet) {
3312             pAC->GIni.GP[0].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3313         }
3314
3315         /*
3316         ** c) Any Flowcontrol-parameter set?
3317         */
3318         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3319                 FlowCtrl_A[pAC->Index] != NULL) {
3320                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3321                     IsFlowCtrlDefined = SK_FALSE;
3322                 } else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3323                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3324                 } else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3325                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3326                 } else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3327                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3328                 } else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3329                     FlowCtrl = SK_FLOW_MODE_NONE;
3330                 } else {
3331                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_A\n",
3332                         FlowCtrl_A[pAC->Index]);
3333                     IsFlowCtrlDefined = SK_FALSE;
3334                 }
3335         } else {
3336            IsFlowCtrlDefined = SK_FALSE;
3337         }
3338
3339         if (IsFlowCtrlDefined) {
3340             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3341                 printk("sk98lin: Port A: FlowControl"
3342                         " impossible without AutoNegotiation,"
3343                         " disabled\n");
3344                 FlowCtrl = SK_FLOW_MODE_NONE;
3345             }
3346             pAC->GIni.GP[0].PFlowCtrlMode = FlowCtrl;
3347         }
3348
3349         /*
3350         ** d) What is with the RoleParameter?
3351         */
3352         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3353                 Role_A[pAC->Index] != NULL) {
3354                 if (strcmp(Role_A[pAC->Index],"")==0) {
3355                    IsRoleDefined = SK_FALSE;
3356                 } else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3357                     MSMode = SK_MS_MODE_AUTO;
3358                 } else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3359                     MSMode = SK_MS_MODE_MASTER;
3360                 } else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3361                     MSMode = SK_MS_MODE_SLAVE;
3362                 } else {
3363                     printk("sk98lin: Illegal value \"%s\" for Role_A\n",
3364                         Role_A[pAC->Index]);
3365                     IsRoleDefined = SK_FALSE;
3366                 }
3367         } else {
3368            IsRoleDefined = SK_FALSE;
3369         }
3370
3371         if (IsRoleDefined == SK_TRUE) {
3372             pAC->GIni.GP[0].PMSMode = MSMode;
3373         }
3374
3375
3376
3377         /*
3378         ** Parse any parameter settings for port B:
3379         ** a) any LinkSpeed stated?
3380         */
3381         IsConTypeDefined   = SK_TRUE;
3382         IsLinkSpeedDefined = SK_TRUE;
3383         IsFlowCtrlDefined  = SK_TRUE;
3384         IsModeDefined      = SK_TRUE;
3385
3386         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3387                 Speed_B[pAC->Index] != NULL) {
3388                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3389                     IsLinkSpeedDefined = SK_FALSE;
3390                 } else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3391                     LinkSpeed = SK_LSPEED_AUTO;
3392                 } else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3393                     LinkSpeed = SK_LSPEED_10MBPS;
3394                 } else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3395                     LinkSpeed = SK_LSPEED_100MBPS;
3396                 } else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3397                     LinkSpeed = SK_LSPEED_1000MBPS;
3398                 } else {
3399                     printk("sk98lin: Illegal value \"%s\" for Speed_B\n",
3400                         Speed_B[pAC->Index]);
3401                     IsLinkSpeedDefined = SK_FALSE;
3402                 }
3403         } else {
3404             IsLinkSpeedDefined = SK_FALSE;
3405         }
3406
3407         /*
3408         ** Check speed parameter:
3409         **    Only copper type adapter and GE V2 cards
3410         */
3411         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3412                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3413                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3414                 printk("sk98lin: Illegal value for Speed_B. "
3415                         "Not a copper card or GE V2 card\n    Using "
3416                         "speed 1000\n");
3417                 LinkSpeed = SK_LSPEED_1000MBPS;
3418         }
3419
3420         /*
3421         ** Decide whether to set new config value if somethig valid has
3422         ** been received.
3423         */
3424         if (IsLinkSpeedDefined) {
3425             pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3426         }
3427
3428         /*
3429         ** b) Any Autonegotiation and DuplexCapabilities set?
3430         **    Please note that both belong together...
3431         */
3432         AutoNeg = AN_SENS; /* default: do auto Sense */
3433         AutoSet = SK_FALSE;
3434         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3435                 AutoNeg_B[pAC->Index] != NULL) {
3436                 AutoSet = SK_TRUE;
3437                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3438                     AutoSet = SK_FALSE;
3439                 } else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3440                     AutoNeg = AN_ON;
3441                 } else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3442                     AutoNeg = AN_OFF;
3443                 } else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3444                     AutoNeg = AN_SENS;
3445                 } else {
3446                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_B\n",
3447                         AutoNeg_B[pAC->Index]);
3448                 }
3449         }
3450
3451         DuplexCap = DC_BOTH;
3452         DupSet    = SK_FALSE;
3453         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3454                 DupCap_B[pAC->Index] != NULL) {
3455                 DupSet = SK_TRUE;
3456                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3457                     DupSet = SK_FALSE;
3458                 } else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3459                     DuplexCap = DC_BOTH;
3460                 } else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3461                     DuplexCap = DC_FULL;
3462                 } else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3463                     DuplexCap = DC_HALF;
3464                 } else {
3465                     printk("sk98lin: Illegal value \"%s\" for DupCap_B\n",
3466                         DupCap_B[pAC->Index]);
3467                 }
3468         }
3469
3470
3471         /*
3472         ** Check for illegal combinations
3473         */
3474         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3475                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3476                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3477                 (pAC->ChipsetType)) {
3478                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3479                                         "    Using Full Duplex.\n");
3480                                 DuplexCap = DC_FULL;
3481         }
3482
3483         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3484                 printk("sk98lin, Port B: DuplexCapabilities"
3485                         " ignored using Sense mode\n");
3486         }
3487
3488         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3489                 printk("sk98lin: Port B: Illegal combination"
3490                         " of values AutoNeg. and DuplexCap.\n    Using "
3491                         "Full Duplex\n");
3492                 DuplexCap = DC_FULL;
3493         }
3494
3495         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3496                 DuplexCap = DC_FULL;
3497         }
3498
3499         if (!AutoSet && DupSet) {
3500                 printk("sk98lin: Port B: Duplex setting not"
3501                         " possible in\n    default AutoNegotiation mode"
3502                         " (Sense).\n    Using AutoNegotiation On\n");
3503                 AutoNeg = AN_ON;
3504         }
3505
3506         /*
3507         ** set the desired mode
3508         */
3509         if (AutoSet || DupSet) {
3510             pAC->GIni.GP[1].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3511         }
3512
3513         /*
3514         ** c) Any FlowCtrl parameter set?
3515         */
3516         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3517                 FlowCtrl_B[pAC->Index] != NULL) {
3518                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3519                     IsFlowCtrlDefined = SK_FALSE;
3520                 } else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3521                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3522                 } else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3523                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3524                 } else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
3525                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3526                 } else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
3527                     FlowCtrl = SK_FLOW_MODE_NONE;
3528                 } else {
3529                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_B\n",
3530                         FlowCtrl_B[pAC->Index]);
3531                     IsFlowCtrlDefined = SK_FALSE;
3532                 }
3533         } else {
3534                 IsFlowCtrlDefined = SK_FALSE;
3535         }
3536
3537         if (IsFlowCtrlDefined) {
3538             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3539                 printk("sk98lin: Port B: FlowControl"
3540                         " impossible without AutoNegotiation,"
3541                         " disabled\n");
3542                 FlowCtrl = SK_FLOW_MODE_NONE;
3543             }
3544             pAC->GIni.GP[1].PFlowCtrlMode = FlowCtrl;
3545         }
3546
3547         /*
3548         ** d) What is the RoleParameter?
3549         */
3550         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3551                 Role_B[pAC->Index] != NULL) {
3552                 if (strcmp(Role_B[pAC->Index],"")==0) {
3553                     IsRoleDefined = SK_FALSE;
3554                 } else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
3555                     MSMode = SK_MS_MODE_AUTO;
3556                 } else if (strcmp(Role_B[pAC->Index],"Master")==0) {
3557                     MSMode = SK_MS_MODE_MASTER;
3558                 } else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
3559                     MSMode = SK_MS_MODE_SLAVE;
3560                 } else {
3561                     printk("sk98lin: Illegal value \"%s\" for Role_B\n",
3562                         Role_B[pAC->Index]);
3563                     IsRoleDefined = SK_FALSE;
3564                 }
3565         } else {
3566             IsRoleDefined = SK_FALSE;
3567         }
3568
3569         if (IsRoleDefined) {
3570             pAC->GIni.GP[1].PMSMode = MSMode;
3571         }
3572
3573         /*
3574         ** Evaluate settings for both ports
3575         */
3576         pAC->ActivePort = 0;
3577         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3578                 PrefPort[pAC->Index] != NULL) {
3579                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
3580                         pAC->ActivePort             =  0;
3581                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
3582                         pAC->Rlmt.Net[0].PrefPort   =  0;
3583                 } else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
3584                         /*
3585                         ** do not set ActivePort here, thus a port
3586                         ** switch is issued after net up.
3587                         */
3588                         Port                        = 0;
3589                         pAC->Rlmt.Net[0].Preference = Port;
3590                         pAC->Rlmt.Net[0].PrefPort   = Port;
3591                 } else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
3592                         /*
3593                         ** do not set ActivePort here, thus a port
3594                         ** switch is issued after net up.
3595                         */
3596                         if (pAC->GIni.GIMacsFound == 1) {
3597                                 printk("sk98lin: Illegal value \"B\" for PrefPort.\n"
3598                                         "      Port B not available on single port adapters.\n");
3599
3600                                 pAC->ActivePort             =  0;
3601                                 pAC->Rlmt.Net[0].Preference = -1; /* auto */
3602                                 pAC->Rlmt.Net[0].PrefPort   =  0;
3603                         } else {
3604                                 Port                        = 1;
3605                                 pAC->Rlmt.Net[0].Preference = Port;
3606                                 pAC->Rlmt.Net[0].PrefPort   = Port;
3607                         }
3608                 } else {
3609                     printk("sk98lin: Illegal value \"%s\" for PrefPort\n",
3610                         PrefPort[pAC->Index]);
3611                 }
3612         }
3613
3614         pAC->RlmtNets = 1;
3615
3616         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3617                 RlmtMode[pAC->Index] != NULL) {
3618                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
3619                         pAC->RlmtMode = 0;
3620                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
3621                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3622                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
3623                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3624                                         SK_RLMT_CHECK_LOC_LINK;
3625                 } else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
3626                         pAC->RlmtMode = SK_RLMT_CHECK_LINK     |
3627                                         SK_RLMT_CHECK_LOC_LINK |
3628                                         SK_RLMT_CHECK_SEG;
3629                 } else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
3630                         (pAC->GIni.GIMacsFound == 2)) {
3631                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3632                         pAC->RlmtNets = 2;
3633                 } else {
3634                     printk("sk98lin: Illegal value \"%s\" for"
3635                         " RlmtMode, using default\n",
3636                         RlmtMode[pAC->Index]);
3637                         pAC->RlmtMode = 0;
3638                 }
3639         } else {
3640                 pAC->RlmtMode = 0;
3641         }
3642
3643         /*
3644         ** Check the interrupt moderation parameters
3645         */
3646         if (Moderation[pAC->Index] != NULL) {
3647                 if (strcmp(Moderation[pAC->Index], "") == 0) {
3648                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3649                 } else if (strcmp(Moderation[pAC->Index], "Static") == 0) {
3650                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_STATIC;
3651                 } else if (strcmp(Moderation[pAC->Index], "Dynamic") == 0) {
3652                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_DYNAMIC;
3653                 } else if (strcmp(Moderation[pAC->Index], "None") == 0) {
3654                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3655                 } else {
3656                         printk("sk98lin: Illegal value \"%s\" for Moderation.\n"
3657                                 "      Disable interrupt moderation.\n",
3658                                 Moderation[pAC->Index]);
3659                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3660                 }
3661         } else {
3662                 pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3663         }
3664
3665         if (Stats[pAC->Index] != NULL) {
3666                 if (strcmp(Stats[pAC->Index], "Yes") == 0) {
3667                         pAC->DynIrqModInfo.DisplayStats = SK_TRUE;
3668                 } else {
3669                         pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3670                 }
3671         } else {
3672                 pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3673         }
3674
3675         if (ModerationMask[pAC->Index] != NULL) {
3676                 if (strcmp(ModerationMask[pAC->Index], "Rx") == 0) {
3677                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3678                 } else if (strcmp(ModerationMask[pAC->Index], "Tx") == 0) {
3679                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_ONLY;
3680                 } else if (strcmp(ModerationMask[pAC->Index], "Sp") == 0) {
3681                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_ONLY;
3682                 } else if (strcmp(ModerationMask[pAC->Index], "RxSp") == 0) {
3683                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3684                 } else if (strcmp(ModerationMask[pAC->Index], "SpRx") == 0) {
3685                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3686                 } else if (strcmp(ModerationMask[pAC->Index], "RxTx") == 0) {
3687                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3688                 } else if (strcmp(ModerationMask[pAC->Index], "TxRx") == 0) {
3689                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3690                 } else if (strcmp(ModerationMask[pAC->Index], "TxSp") == 0) {
3691                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3692                 } else if (strcmp(ModerationMask[pAC->Index], "SpTx") == 0) {
3693                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3694                 } else if (strcmp(ModerationMask[pAC->Index], "RxTxSp") == 0) {
3695                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3696                 } else if (strcmp(ModerationMask[pAC->Index], "RxSpTx") == 0) {
3697                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3698                 } else if (strcmp(ModerationMask[pAC->Index], "TxRxSp") == 0) {
3699                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3700                 } else if (strcmp(ModerationMask[pAC->Index], "TxSpRx") == 0) {
3701                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3702                 } else if (strcmp(ModerationMask[pAC->Index], "SpTxRx") == 0) {
3703                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3704                 } else if (strcmp(ModerationMask[pAC->Index], "SpRxTx") == 0) {
3705                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3706                 } else { /* some rubbish */
3707                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3708                 }
3709         } else {  /* operator has stated nothing */
3710                 pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3711         }
3712
3713         if (AutoSizing[pAC->Index] != NULL) {
3714                 if (strcmp(AutoSizing[pAC->Index], "On") == 0) {
3715                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3716                 } else {
3717                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3718                 }
3719         } else {  /* operator has stated nothing */
3720                 pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3721         }
3722
3723         if (IntsPerSec[pAC->Index] != 0) {
3724                 if ((IntsPerSec[pAC->Index]< C_INT_MOD_IPS_LOWER_RANGE) ||
3725                         (IntsPerSec[pAC->Index] > C_INT_MOD_IPS_UPPER_RANGE)) {
3726                         printk("sk98lin: Illegal value \"%d\" for IntsPerSec. (Range: %d - %d)\n"
3727                                 "      Using default value of %i.\n",
3728                                 IntsPerSec[pAC->Index],
3729                                 C_INT_MOD_IPS_LOWER_RANGE,
3730                                 C_INT_MOD_IPS_UPPER_RANGE,
3731                                 C_INTS_PER_SEC_DEFAULT);
3732                         pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3733                 } else {
3734                         pAC->DynIrqModInfo.MaxModIntsPerSec = IntsPerSec[pAC->Index];
3735                 }
3736         } else {
3737                 pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3738         }
3739
3740         /*
3741         ** Evaluate upper and lower moderation threshold
3742         */
3743         pAC->DynIrqModInfo.MaxModIntsPerSecUpperLimit =
3744                 pAC->DynIrqModInfo.MaxModIntsPerSec +
3745                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3746
3747         pAC->DynIrqModInfo.MaxModIntsPerSecLowerLimit =
3748                 pAC->DynIrqModInfo.MaxModIntsPerSec -
3749                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3750
3751         pAC->DynIrqModInfo.PrevTimeVal = jiffies;  /* initial value */
3752
3753
3754 } /* GetConfiguration */
3755
3756
3757 /*****************************************************************************
3758  *
3759  *      ProductStr - return a adapter identification string from vpd
3760  *
3761  * Description:
3762  *      This function reads the product name string from the vpd area
3763  *      and puts it the field pAC->DeviceString.
3764  *
3765  * Returns: N/A
3766  */
3767 static inline int ProductStr(
3768         SK_AC   *pAC,           /* pointer to adapter context */
3769         char    *DeviceStr,     /* result string */
3770         int      StrLen         /* length of the string */
3771 )
3772 {
3773 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
3774 int     ReturnCode;             /* return code from vpd_read */
3775 unsigned long Flags;
3776
3777         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3778         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, DeviceStr, &StrLen);
3779         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3780
3781         return ReturnCode;
3782 } /* ProductStr */
3783
3784 /*****************************************************************************
3785  *
3786  *      StartDrvCleanupTimer - Start timer to check for descriptors which
3787  *                             might be placed in descriptor ring, but
3788  *                             havent been handled up to now
3789  *
3790  * Description:
3791  *      This function requests a HW-timer fo the Yukon card. The actions to
3792  *      perform when this timer expires, are located in the SkDrvEvent().
3793  *
3794  * Returns: N/A
3795  */
3796 static void
3797 StartDrvCleanupTimer(SK_AC *pAC) {
3798     SK_EVPARA    EventParam;   /* Event struct for timer event */
3799
3800     SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
3801     EventParam.Para32[0] = SK_DRV_RX_CLEANUP_TIMER;
3802     SkTimerStart(pAC, pAC->IoBase, &pAC->DrvCleanupTimer,
3803                  SK_DRV_RX_CLEANUP_TIMER_LENGTH,
3804                  SKGE_DRV, SK_DRV_TIMER, EventParam);
3805 }
3806
3807 /*****************************************************************************
3808  *
3809  *      StopDrvCleanupTimer - Stop timer to check for descriptors
3810  *
3811  * Description:
3812  *      This function requests a HW-timer fo the Yukon card. The actions to
3813  *      perform when this timer expires, are located in the SkDrvEvent().
3814  *
3815  * Returns: N/A
3816  */
3817 static void
3818 StopDrvCleanupTimer(SK_AC *pAC) {
3819     SkTimerStop(pAC, pAC->IoBase, &pAC->DrvCleanupTimer);
3820     SK_MEMSET((char *) &pAC->DrvCleanupTimer, 0, sizeof(SK_TIMER));
3821 }
3822
3823 /****************************************************************************/
3824 /* functions for common modules *********************************************/
3825 /****************************************************************************/
3826
3827
3828 /*****************************************************************************
3829  *
3830  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
3831  *
3832  * Description:
3833  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
3834  *      is embedded into a socket buff data area.
3835  *
3836  * Context:
3837  *      runtime
3838  *
3839  * Returns:
3840  *      NULL or pointer to Mbuf.
3841  */
3842 SK_MBUF *SkDrvAllocRlmtMbuf(
3843 SK_AC           *pAC,           /* pointer to adapter context */
3844 SK_IOC          IoC,            /* the IO-context */
3845 unsigned        BufferSize)     /* size of the requested buffer */
3846 {
3847 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
3848 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
3849
3850         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
3851         if (pMsgBlock == NULL) {
3852                 return (NULL);
3853         }
3854         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
3855         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
3856         pRlmtMbuf->pNext = NULL;
3857         pRlmtMbuf->pOs = pMsgBlock;
3858         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
3859         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
3860         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
3861         return (pRlmtMbuf);
3862
3863 } /* SkDrvAllocRlmtMbuf */
3864
3865
3866 /*****************************************************************************
3867  *
3868  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
3869  *
3870  * Description:
3871  *      This routine frees one or more RLMT mbuf(s).
3872  *
3873  * Context:
3874  *      runtime
3875  *
3876  * Returns:
3877  *      Nothing
3878  */
3879 void  SkDrvFreeRlmtMbuf(
3880 SK_AC           *pAC,           /* pointer to adapter context */
3881 SK_IOC          IoC,            /* the IO-context */
3882 SK_MBUF         *pMbuf)         /* size of the requested buffer */
3883 {
3884 SK_MBUF         *pFreeMbuf;
3885 SK_MBUF         *pNextMbuf;
3886
3887         pFreeMbuf = pMbuf;
3888         do {
3889                 pNextMbuf = pFreeMbuf->pNext;
3890                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
3891                 pFreeMbuf = pNextMbuf;
3892         } while ( pFreeMbuf != NULL );
3893 } /* SkDrvFreeRlmtMbuf */
3894
3895
3896 /*****************************************************************************
3897  *
3898  *      SkOsGetTime - provide a time value
3899  *
3900  * Description:
3901  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
3902  *      It is not used for absolute time, but only for time differences.
3903  *
3904  *
3905  * Returns:
3906  *      Time value
3907  */
3908 SK_U64 SkOsGetTime(SK_AC *pAC)
3909 {
3910         SK_U64  PrivateJiffies;
3911         SkOsGetTimeCurrent(pAC, &PrivateJiffies);
3912         return PrivateJiffies;
3913 } /* SkOsGetTime */
3914
3915
3916 /*****************************************************************************
3917  *
3918  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
3919  *
3920  * Description:
3921  *      This routine reads a 32 bit value from the pci configuration
3922  *      space.
3923  *
3924  * Returns:
3925  *      0 - indicate everything worked ok.
3926  *      != 0 - error indication
3927  */
3928 int SkPciReadCfgDWord(
3929 SK_AC *pAC,             /* Adapter Control structure pointer */
3930 int PciAddr,            /* PCI register address */
3931 SK_U32 *pVal)           /* pointer to store the read value */
3932 {
3933         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
3934         return(0);
3935 } /* SkPciReadCfgDWord */
3936
3937
3938 /*****************************************************************************
3939  *
3940  *      SkPciReadCfgWord - read a 16 bit value from pci config space
3941  *
3942  * Description:
3943  *      This routine reads a 16 bit value from the pci configuration
3944  *      space.
3945  *
3946  * Returns:
3947  *      0 - indicate everything worked ok.
3948  *      != 0 - error indication
3949  */
3950 int SkPciReadCfgWord(
3951 SK_AC *pAC,     /* Adapter Control structure pointer */
3952 int PciAddr,            /* PCI register address */
3953 SK_U16 *pVal)           /* pointer to store the read value */
3954 {
3955         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
3956         return(0);
3957 } /* SkPciReadCfgWord */
3958
3959
3960 /*****************************************************************************
3961  *
3962  *      SkPciReadCfgByte - read a 8 bit value from pci config space
3963  *
3964  * Description:
3965  *      This routine reads a 8 bit value from the pci configuration
3966  *      space.
3967  *
3968  * Returns:
3969  *      0 - indicate everything worked ok.
3970  *      != 0 - error indication
3971  */
3972 int SkPciReadCfgByte(
3973 SK_AC *pAC,     /* Adapter Control structure pointer */
3974 int PciAddr,            /* PCI register address */
3975 SK_U8 *pVal)            /* pointer to store the read value */
3976 {
3977         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
3978         return(0);
3979 } /* SkPciReadCfgByte */
3980
3981
3982 /*****************************************************************************
3983  *
3984  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
3985  *
3986  * Description:
3987  *      This routine writes a 16 bit value to the pci configuration
3988  *      space. The flag PciConfigUp indicates whether the config space
3989  *      is accesible or must be set up first.
3990  *
3991  * Returns:
3992  *      0 - indicate everything worked ok.
3993  *      != 0 - error indication
3994  */
3995 int SkPciWriteCfgWord(
3996 SK_AC *pAC,     /* Adapter Control structure pointer */
3997 int PciAddr,            /* PCI register address */
3998 SK_U16 Val)             /* pointer to store the read value */
3999 {
4000         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4001         return(0);
4002 } /* SkPciWriteCfgWord */
4003
4004
4005 /*****************************************************************************
4006  *
4007  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4008  *
4009  * Description:
4010  *      This routine writes a 8 bit value to the pci configuration
4011  *      space. The flag PciConfigUp indicates whether the config space
4012  *      is accesible or must be set up first.
4013  *
4014  * Returns:
4015  *      0 - indicate everything worked ok.
4016  *      != 0 - error indication
4017  */
4018 int SkPciWriteCfgByte(
4019 SK_AC *pAC,     /* Adapter Control structure pointer */
4020 int PciAddr,            /* PCI register address */
4021 SK_U8 Val)              /* pointer to store the read value */
4022 {
4023         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4024         return(0);
4025 } /* SkPciWriteCfgByte */
4026
4027
4028 /*****************************************************************************
4029  *
4030  *      SkDrvEvent - handle driver events
4031  *
4032  * Description:
4033  *      This function handles events from all modules directed to the driver
4034  *
4035  * Context:
4036  *      Is called under protection of slow path lock.
4037  *
4038  * Returns:
4039  *      0 if everything ok
4040  *      < 0  on error
4041  *
4042  */
4043 int SkDrvEvent(
4044 SK_AC *pAC,             /* pointer to adapter context */
4045 SK_IOC IoC,             /* io-context */
4046 SK_U32 Event,           /* event-id */
4047 SK_EVPARA Param)        /* event-parameter */
4048 {
4049 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4050 struct sk_buff  *pMsg;          /* pointer to a message block */
4051 int             FromPort;       /* the port from which we switch away */
4052 int             ToPort;         /* the port we switch to */
4053 SK_EVPARA       NewPara;        /* parameter for further events */
4054 int             Stat;
4055 unsigned long   Flags;
4056 SK_BOOL         DualNet;
4057
4058         switch (Event) {
4059         case SK_DRV_ADAP_FAIL:
4060                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4061                         ("ADAPTER FAIL EVENT\n"));
4062                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4063                 /* disable interrupts */
4064                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4065                 /* cgoos */
4066                 break;
4067         case SK_DRV_PORT_FAIL:
4068                 FromPort = Param.Para32[0];
4069                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4070                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4071                 if (FromPort == 0) {
4072                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4073                 } else {
4074                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4075                 }
4076                 /* cgoos */
4077                 break;
4078         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4079                 /* action list 4 */
4080                 FromPort = Param.Para32[0];
4081                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4082                         ("PORT RESET EVENT, Port: %d ", FromPort));
4083                 NewPara.Para64 = FromPort;
4084                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4085                 spin_lock_irqsave(
4086                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4087                         Flags);
4088
4089                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4090                 netif_carrier_off(pAC->dev[Param.Para32[0]]);
4091                 spin_unlock_irqrestore(
4092                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4093                         Flags);
4094
4095                 /* clear rx ring from received frames */
4096                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4097
4098                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4099                 spin_lock_irqsave(
4100                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4101                         Flags);
4102
4103                 /* tschilling: Handling of return value inserted. */
4104                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4105                         if (FromPort == 0) {
4106                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4107                         } else {
4108                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4109                         }
4110                 }
4111                 SkAddrMcUpdate(pAC,IoC, FromPort);
4112                 PortReInitBmu(pAC, FromPort);
4113                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4114                 ClearAndStartRx(pAC, FromPort);
4115                 spin_unlock_irqrestore(
4116                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4117                         Flags);
4118                 break;
4119         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4120         {       struct net_device *dev = pAC->dev[Param.Para32[0]];
4121                 /* action list 5 */
4122                 FromPort = Param.Para32[0];
4123                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4124                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4125                 /* Mac update */
4126                 SkAddrMcUpdate(pAC,IoC, FromPort);
4127
4128                 if (DoPrintInterfaceChange) {
4129                 printk("%s: network connection up using"
4130                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4131
4132                 /* tschilling: Values changed according to LinkSpeedUsed. */
4133                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4134                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4135                         printk("    speed:           10\n");
4136                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4137                         printk("    speed:           100\n");
4138                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4139                         printk("    speed:           1000\n");
4140                 } else {
4141                         printk("    speed:           unknown\n");
4142                 }
4143
4144
4145                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4146                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4147                         Stat == SK_LMODE_STAT_AUTOFULL) {
4148                         printk("    autonegotiation: yes\n");
4149                 }
4150                 else {
4151                         printk("    autonegotiation: no\n");
4152                 }
4153                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4154                         Stat == SK_LMODE_STAT_HALF) {
4155                         printk("    duplex mode:     half\n");
4156                 }
4157                 else {
4158                         printk("    duplex mode:     full\n");
4159                 }
4160                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4161                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4162                         printk("    flowctrl:        remote send\n");
4163                 }
4164                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4165                         printk("    flowctrl:        local send\n");
4166                 }
4167                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4168                         printk("    flowctrl:        symmetric\n");
4169                 }
4170                 else {
4171                         printk("    flowctrl:        none\n");
4172                 }
4173
4174                 /* tschilling: Check against CopperType now. */
4175                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4176                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4177                         SK_LSPEED_STAT_1000MBPS)) {
4178                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4179                         if (Stat == SK_MS_STAT_MASTER ) {
4180                                 printk("    role:            master\n");
4181                         }
4182                         else if (Stat == SK_MS_STAT_SLAVE ) {
4183                                 printk("    role:            slave\n");
4184                         }
4185                         else {
4186                                 printk("    role:            ???\n");
4187                         }
4188                 }
4189
4190                 /*
4191                    Display dim (dynamic interrupt moderation)
4192                    informations
4193                  */
4194                 if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC)
4195                         printk("    irq moderation:  static (%d ints/sec)\n",
4196                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4197                 else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC)
4198                         printk("    irq moderation:  dynamic (%d ints/sec)\n",
4199                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4200                 else
4201                         printk("    irq moderation:  disabled\n");
4202
4203
4204                 printk("    scatter-gather:  %s\n",
4205                        (dev->features & NETIF_F_SG) ? "enabled" : "disabled");
4206                 printk("    tx-checksum:     %s\n",
4207                        (dev->features & NETIF_F_IP_CSUM) ? "enabled" : "disabled");
4208                 printk("    rx-checksum:     %s\n",
4209                        pAC->RxPort[Param.Para32[0]].RxCsum ? "enabled" : "disabled");
4210
4211                 } else {
4212                         DoPrintInterfaceChange = SK_TRUE;
4213                 }
4214
4215                 if ((Param.Para32[0] != pAC->ActivePort) &&
4216                         (pAC->RlmtNets == 1)) {
4217                         NewPara.Para32[0] = pAC->ActivePort;
4218                         NewPara.Para32[1] = Param.Para32[0];
4219                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4220                                 NewPara);
4221                 }
4222
4223                 /* Inform the world that link protocol is up. */
4224                 netif_carrier_on(dev);
4225                 break;
4226         }
4227         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4228                 /* action list 7 */
4229                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4230                         ("NET DOWN EVENT "));
4231                 if (DoPrintInterfaceChange) {
4232                         printk("%s: network connection down\n",
4233                                 pAC->dev[Param.Para32[1]]->name);
4234                 } else {
4235                         DoPrintInterfaceChange = SK_TRUE;
4236                 }
4237                 netif_carrier_off(pAC->dev[Param.Para32[1]]);
4238                 break;
4239         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4240                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4241                         ("PORT SWITCH HARD "));
4242         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4243         /* action list 6 */
4244                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4245                         'A'+Param.Para32[1]);
4246         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4247                 FromPort = Param.Para32[0];
4248                 ToPort = Param.Para32[1];
4249                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4250                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4251                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4252                 NewPara.Para64 = FromPort;
4253                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4254                 NewPara.Para64 = ToPort;
4255                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4256                 spin_lock_irqsave(
4257                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4258                         Flags);
4259                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4260                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4261                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4262                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4263                 spin_unlock_irqrestore(
4264                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4265                         Flags);
4266
4267                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4268                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4269
4270                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4271                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4272                 spin_lock_irqsave(
4273                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4274                         Flags);
4275                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4276                 pAC->ActivePort = ToPort;
4277 #if 0
4278                 SetQueueSizes(pAC);
4279 #else
4280                 /* tschilling: New common function with minimum size check. */
4281                 DualNet = SK_FALSE;
4282                 if (pAC->RlmtNets == 2) {
4283                         DualNet = SK_TRUE;
4284                 }
4285
4286                 if (SkGeInitAssignRamToQueues(
4287                         pAC,
4288                         pAC->ActivePort,
4289                         DualNet)) {
4290                         spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4291                         spin_unlock_irqrestore(
4292                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4293                                 Flags);
4294                         printk("SkGeInitAssignRamToQueues failed.\n");
4295                         break;
4296                 }
4297 #endif
4298                 /* tschilling: Handling of return values inserted. */
4299                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4300                         SkGeInitPort(pAC, IoC, ToPort)) {
4301                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4302                 }
4303                 if (Event == SK_DRV_SWITCH_SOFT) {
4304                         SkMacRxTxEnable(pAC, IoC, FromPort);
4305                 }
4306                 SkMacRxTxEnable(pAC, IoC, ToPort);
4307                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4308                 SkAddrMcUpdate(pAC, IoC, FromPort);
4309                 SkAddrMcUpdate(pAC, IoC, ToPort);
4310                 PortReInitBmu(pAC, FromPort);
4311                 PortReInitBmu(pAC, ToPort);
4312                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4313                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4314                 ClearAndStartRx(pAC, FromPort);
4315                 ClearAndStartRx(pAC, ToPort);
4316                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4317                 spin_unlock_irqrestore(
4318                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4319                         Flags);
4320                 break;
4321         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4322                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4323                         ("RLS "));
4324                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4325                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4326                 skb_put(pMsg, pRlmtMbuf->Length);
4327                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4328                         pMsg) < 0)
4329
4330                         DEV_KFREE_SKB_ANY(pMsg);
4331                 break;
4332         case SK_DRV_TIMER:
4333                 if (Param.Para32[0] == SK_DRV_MODERATION_TIMER) {
4334                         /*
4335                         ** expiration of the moderation timer implies that
4336                         ** dynamic moderation is to be applied
4337                         */
4338                         SkDimStartModerationTimer(pAC);
4339                         SkDimModerate(pAC);
4340                         if (pAC->DynIrqModInfo.DisplayStats) {
4341                             SkDimDisplayModerationSettings(pAC);
4342                         }
4343                 } else if (Param.Para32[0] == SK_DRV_RX_CLEANUP_TIMER) {
4344                         /*
4345                         ** check if we need to check for descriptors which
4346                         ** haven't been handled the last millisecs
4347                         */
4348                         StartDrvCleanupTimer(pAC);
4349                         if (pAC->GIni.GIMacsFound == 2) {
4350                                 ReceiveIrq(pAC, &pAC->RxPort[1], SK_FALSE);
4351                         }
4352                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_FALSE);
4353                 } else {
4354                         printk("Expiration of unknown timer\n");
4355                 }
4356                 break;
4357         default:
4358                 break;
4359         }
4360         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4361                 ("END EVENT "));
4362
4363         return (0);
4364 } /* SkDrvEvent */
4365
4366
4367 /*****************************************************************************
4368  *
4369  *      SkErrorLog - log errors
4370  *
4371  * Description:
4372  *      This function logs errors to the system buffer and to the console
4373  *
4374  * Returns:
4375  *      0 if everything ok
4376  *      < 0  on error
4377  *
4378  */
4379 void SkErrorLog(
4380 SK_AC   *pAC,
4381 int     ErrClass,
4382 int     ErrNum,
4383 char    *pErrorMsg)
4384 {
4385 char    ClassStr[80];
4386
4387         switch (ErrClass) {
4388         case SK_ERRCL_OTHER:
4389                 strcpy(ClassStr, "Other error");
4390                 break;
4391         case SK_ERRCL_CONFIG:
4392                 strcpy(ClassStr, "Configuration error");
4393                 break;
4394         case SK_ERRCL_INIT:
4395                 strcpy(ClassStr, "Initialization error");
4396                 break;
4397         case SK_ERRCL_NORES:
4398                 strcpy(ClassStr, "Out of resources error");
4399                 break;
4400         case SK_ERRCL_SW:
4401                 strcpy(ClassStr, "internal Software error");
4402                 break;
4403         case SK_ERRCL_HW:
4404                 strcpy(ClassStr, "Hardware failure");
4405                 break;
4406         case SK_ERRCL_COMM:
4407                 strcpy(ClassStr, "Communication error");
4408                 break;
4409         }
4410         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4411                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4412                 ClassStr, ErrNum, pErrorMsg);
4413
4414 } /* SkErrorLog */
4415
4416 #ifdef SK_DIAG_SUPPORT
4417
4418 /*****************************************************************************
4419  *
4420  *      SkDrvEnterDiagMode - handles DIAG attach request
4421  *
4422  * Description:
4423  *      Notify the kernel to NOT access the card any longer due to DIAG
4424  *      Deinitialize the Card
4425  *
4426  * Returns:
4427  *      int
4428  */
4429 int SkDrvEnterDiagMode(
4430 SK_AC   *pAc)   /* pointer to adapter context */
4431 {
4432         DEV_NET *pNet = netdev_priv(pAc->dev[0]);
4433         SK_AC   *pAC  = pNet->pAC;
4434
4435         SK_MEMCPY(&(pAc->PnmiBackup), &(pAc->PnmiStruct),
4436                         sizeof(SK_PNMI_STRUCT_DATA));
4437
4438         pAC->DiagModeActive = DIAG_ACTIVE;
4439         if (pAC->BoardLevel > SK_INIT_DATA) {
4440                 if (netif_running(pAC->dev[0])) {
4441                         pAC->WasIfUp[0] = SK_TRUE;
4442                         pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose      */
4443                         DoPrintInterfaceChange = SK_FALSE;
4444                         SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
4445                 } else {
4446                         pAC->WasIfUp[0] = SK_FALSE;
4447                 }
4448                 if (pNet != netdev_priv(pAC->dev[1])) {
4449                         pNet = netdev_priv(pAC->dev[1]);
4450                         if (netif_running(pAC->dev[1])) {
4451                                 pAC->WasIfUp[1] = SK_TRUE;
4452                                 pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4453                                 DoPrintInterfaceChange = SK_FALSE;
4454                                 SkDrvDeInitAdapter(pAC, 1);  /* do SkGeClose  */
4455                         } else {
4456                                 pAC->WasIfUp[1] = SK_FALSE;
4457                         }
4458                 }
4459                 pAC->BoardLevel = SK_INIT_DATA;
4460         }
4461         return(0);
4462 }
4463
4464 /*****************************************************************************
4465  *
4466  *      SkDrvLeaveDiagMode - handles DIAG detach request
4467  *
4468  * Description:
4469  *      Notify the kernel to may access the card again after use by DIAG
4470  *      Initialize the Card
4471  *
4472  * Returns:
4473  *      int
4474  */
4475 int SkDrvLeaveDiagMode(
4476 SK_AC   *pAc)   /* pointer to adapter control context */
4477 {
4478         SK_MEMCPY(&(pAc->PnmiStruct), &(pAc->PnmiBackup),
4479                         sizeof(SK_PNMI_STRUCT_DATA));
4480         pAc->DiagModeActive    = DIAG_NOTACTIVE;
4481         pAc->Pnmi.DiagAttached = SK_DIAG_IDLE;
4482         if (pAc->WasIfUp[0] == SK_TRUE) {
4483                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4484                 DoPrintInterfaceChange = SK_FALSE;
4485                 SkDrvInitAdapter(pAc, 0);    /* first device  */
4486         }
4487         if (pAc->WasIfUp[1] == SK_TRUE) {
4488                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4489                 DoPrintInterfaceChange = SK_FALSE;
4490                 SkDrvInitAdapter(pAc, 1);    /* second device */
4491         }
4492         return(0);
4493 }
4494
4495 /*****************************************************************************
4496  *
4497  *      ParseDeviceNbrFromSlotName - Evaluate PCI device number
4498  *
4499  * Description:
4500  *      This function parses the PCI slot name information string and will
4501  *      retrieve the devcie number out of it. The slot_name maintianed by
4502  *      linux is in the form of '02:0a.0', whereas the first two characters
4503  *      represent the bus number in hex (in the sample above this is
4504  *      pci bus 0x02) and the next two characters the device number (0x0a).
4505  *
4506  * Returns:
4507  *      SK_U32: The device number from the PCI slot name
4508  */
4509
4510 static SK_U32 ParseDeviceNbrFromSlotName(
4511 const char *SlotName)   /* pointer to pci slot name eg. '02:0a.0' */
4512 {
4513         char    *CurrCharPos    = (char *) SlotName;
4514         int     FirstNibble     = -1;
4515         int     SecondNibble    = -1;
4516         SK_U32  Result          =  0;
4517
4518         while (*CurrCharPos != '\0') {
4519                 if (*CurrCharPos == ':') {
4520                         while (*CurrCharPos != '.') {
4521                                 CurrCharPos++;
4522                                 if (    (*CurrCharPos >= '0') &&
4523                                         (*CurrCharPos <= '9')) {
4524                                         if (FirstNibble == -1) {
4525                                                 /* dec. value for '0' */
4526                                                 FirstNibble = *CurrCharPos - 48;
4527                                         } else {
4528                                                 SecondNibble = *CurrCharPos - 48;
4529                                         }
4530                                 } else if (     (*CurrCharPos >= 'a') &&
4531                                                 (*CurrCharPos <= 'f')  ) {
4532                                         if (FirstNibble == -1) {
4533                                                 FirstNibble = *CurrCharPos - 87;
4534                                         } else {
4535                                                 SecondNibble = *CurrCharPos - 87;
4536                                         }
4537                                 } else {
4538                                         Result = 0;
4539                                 }
4540                         }
4541
4542                         Result = FirstNibble;
4543                         Result = Result << 4; /* first nibble is higher one */
4544                         Result = Result | SecondNibble;
4545                 }
4546                 CurrCharPos++;   /* next character */
4547         }
4548         return (Result);
4549 }
4550
4551 /****************************************************************************
4552  *
4553  *      SkDrvDeInitAdapter - deinitialize adapter (this function is only
4554  *                              called if Diag attaches to that card)
4555  *
4556  * Description:
4557  *      Close initialized adapter.
4558  *
4559  * Returns:
4560  *      0 - on success
4561  *      error code - on error
4562  */
4563 static int SkDrvDeInitAdapter(
4564 SK_AC   *pAC,           /* pointer to adapter context   */
4565 int      devNbr)        /* what device is to be handled */
4566 {
4567         struct SK_NET_DEVICE *dev;
4568
4569         dev = pAC->dev[devNbr];
4570
4571         /* On Linux 2.6 the network driver does NOT mess with reference
4572         ** counts.  The driver MUST be able to be unloaded at any time
4573         ** due to the possibility of hotplug.
4574         */
4575         if (SkGeClose(dev) != 0) {
4576                 return (-1);
4577         }
4578         return (0);
4579
4580 } /* SkDrvDeInitAdapter() */
4581
4582 /****************************************************************************
4583  *
4584  *      SkDrvInitAdapter - Initialize adapter (this function is only
4585  *                              called if Diag deattaches from that card)
4586  *
4587  * Description:
4588  *      Close initialized adapter.
4589  *
4590  * Returns:
4591  *      0 - on success
4592  *      error code - on error
4593  */
4594 static int SkDrvInitAdapter(
4595 SK_AC   *pAC,           /* pointer to adapter context   */
4596 int      devNbr)        /* what device is to be handled */
4597 {
4598         struct SK_NET_DEVICE *dev;
4599
4600         dev = pAC->dev[devNbr];
4601
4602         if (SkGeOpen(dev) != 0) {
4603                 return (-1);
4604         }
4605
4606         /*
4607         ** Use correct MTU size and indicate to kernel TX queue can be started
4608         */
4609         if (SkGeChangeMtu(dev, dev->mtu) != 0) {
4610                 return (-1);
4611         }
4612         return (0);
4613
4614 } /* SkDrvInitAdapter */
4615
4616 #endif
4617
4618 #ifdef DEBUG
4619 /****************************************************************************/
4620 /* "debug only" section *****************************************************/
4621 /****************************************************************************/
4622
4623
4624 /*****************************************************************************
4625  *
4626  *      DumpMsg - print a frame
4627  *
4628  * Description:
4629  *      This function prints frames to the system logfile/to the console.
4630  *
4631  * Returns: N/A
4632  *
4633  */
4634 static void DumpMsg(struct sk_buff *skb, char *str)
4635 {
4636         int     msglen;
4637
4638         if (skb == NULL) {
4639                 printk("DumpMsg(): NULL-Message\n");
4640                 return;
4641         }
4642
4643         if (skb->data == NULL) {
4644                 printk("DumpMsg(): Message empty\n");
4645                 return;
4646         }
4647
4648         msglen = skb->len;
4649         if (msglen > 64)
4650                 msglen = 64;
4651
4652         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4653
4654         DumpData((char *)skb->data, msglen);
4655
4656         printk("------- End of message ---------\n");
4657 } /* DumpMsg */
4658
4659
4660
4661 /*****************************************************************************
4662  *
4663  *      DumpData - print a data area
4664  *
4665  * Description:
4666  *      This function prints a area of data to the system logfile/to the
4667  *      console.
4668  *
4669  * Returns: N/A
4670  *
4671  */
4672 static void DumpData(char *p, int size)
4673 {
4674 register int    i;
4675 int     haddr, addr;
4676 char    hex_buffer[180];
4677 char    asc_buffer[180];
4678 char    HEXCHAR[] = "0123456789ABCDEF";
4679
4680         addr = 0;
4681         haddr = 0;
4682         hex_buffer[0] = 0;
4683         asc_buffer[0] = 0;
4684         for (i=0; i < size; ) {
4685                 if (*p >= '0' && *p <='z')
4686                         asc_buffer[addr] = *p;
4687                 else
4688                         asc_buffer[addr] = '.';
4689                 addr++;
4690                 asc_buffer[addr] = 0;
4691                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4692                 haddr++;
4693                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4694                 haddr++;
4695                 hex_buffer[haddr] = ' ';
4696                 haddr++;
4697                 hex_buffer[haddr] = 0;
4698                 p++;
4699                 i++;
4700                 if (i%16 == 0) {
4701                         printk("%s  %s\n", hex_buffer, asc_buffer);
4702                         addr = 0;
4703                         haddr = 0;
4704                 }
4705         }
4706 } /* DumpData */
4707
4708
4709 /*****************************************************************************
4710  *
4711  *      DumpLong - print a data area as long values
4712  *
4713  * Description:
4714  *      This function prints a area of data to the system logfile/to the
4715  *      console.
4716  *
4717  * Returns: N/A
4718  *
4719  */
4720 static void DumpLong(char *pc, int size)
4721 {
4722 register int    i;
4723 int     haddr, addr;
4724 char    hex_buffer[180];
4725 char    asc_buffer[180];
4726 char    HEXCHAR[] = "0123456789ABCDEF";
4727 long    *p;
4728 int     l;
4729
4730         addr = 0;
4731         haddr = 0;
4732         hex_buffer[0] = 0;
4733         asc_buffer[0] = 0;
4734         p = (long*) pc;
4735         for (i=0; i < size; ) {
4736                 l = (long) *p;
4737                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4738                 haddr++;
4739                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4740                 haddr++;
4741                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4742                 haddr++;
4743                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4744                 haddr++;
4745                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4746                 haddr++;
4747                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4748                 haddr++;
4749                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4750                 haddr++;
4751                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4752                 haddr++;
4753                 hex_buffer[haddr] = ' ';
4754                 haddr++;
4755                 hex_buffer[haddr] = 0;
4756                 p++;
4757                 i++;
4758                 if (i%8 == 0) {
4759                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4760                         haddr = 0;
4761                 }
4762         }
4763         printk("------------------------\n");
4764 } /* DumpLong */
4765
4766 #endif
4767
4768 static int __devinit skge_probe_one(struct pci_dev *pdev,
4769                 const struct pci_device_id *ent)
4770 {
4771         SK_AC                   *pAC;
4772         DEV_NET                 *pNet = NULL;
4773         struct net_device       *dev = NULL;
4774         static int boards_found = 0;
4775         int error = -ENODEV;
4776         char DeviceStr[80];
4777
4778         if (pci_enable_device(pdev))
4779                 goto out;
4780
4781         /* Configure DMA attributes. */
4782         if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
4783             pci_set_dma_mask(pdev, DMA_32BIT_MASK))
4784                 goto out_disable_device;
4785
4786
4787         if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) {
4788                 printk(KERN_ERR "Unable to allocate etherdev "
4789                        "structure!\n");
4790                 goto out_disable_device;
4791         }
4792
4793         pNet = netdev_priv(dev);
4794         pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
4795         if (!pNet->pAC) {
4796                 printk(KERN_ERR "Unable to allocate adapter "
4797                        "structure!\n");
4798                 goto out_free_netdev;
4799         }
4800
4801         memset(pNet->pAC, 0, sizeof(SK_AC));
4802         pAC = pNet->pAC;
4803         pAC->PciDev = pdev;
4804
4805         pAC->dev[0] = dev;
4806         pAC->dev[1] = dev;
4807         pAC->CheckQueue = SK_FALSE;
4808
4809         dev->irq = pdev->irq;
4810         error = SkGeInitPCI(pAC);
4811         if (error) {
4812                 printk(KERN_ERR "sk98lin: PCI setup failed: %i\n", error);
4813                 goto out_free_netdev;
4814         }
4815
4816         SET_MODULE_OWNER(dev);
4817         dev->open =             &SkGeOpen;
4818         dev->stop =             &SkGeClose;
4819         dev->hard_start_xmit =  &SkGeXmit;
4820         dev->get_stats =        &SkGeStats;
4821         dev->set_multicast_list = &SkGeSetRxMode;
4822         dev->set_mac_address =  &SkGeSetMacAddr;
4823         dev->do_ioctl =         &SkGeIoctl;
4824         dev->change_mtu =       &SkGeChangeMtu;
4825 #ifdef CONFIG_NET_POLL_CONTROLLER
4826         dev->poll_controller =  &SkGePollController;
4827 #endif
4828         SET_NETDEV_DEV(dev, &pdev->dev);
4829         SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4830
4831         /* Use only if yukon hardware */
4832         if (pAC->ChipsetType) {
4833 #ifdef USE_SK_TX_CHECKSUM
4834                 dev->features |= NETIF_F_IP_CSUM;
4835 #endif
4836 #ifdef SK_ZEROCOPY
4837                 dev->features |= NETIF_F_SG;
4838 #endif
4839 #ifdef USE_SK_RX_CHECKSUM
4840                 pAC->RxPort[0].RxCsum = 1;
4841 #endif
4842         }
4843
4844         pAC->Index = boards_found++;
4845
4846         if (SkGeBoardInit(dev, pAC))
4847                 goto out_free_netdev;
4848
4849         /* Read Adapter name from VPD */
4850         if (ProductStr(pAC, DeviceStr, sizeof(DeviceStr)) != 0) {
4851                 printk(KERN_ERR "sk98lin: Could not read VPD data.\n");
4852                 goto out_free_resources;
4853         }
4854
4855         /* Register net device */
4856         if (register_netdev(dev)) {
4857                 printk(KERN_ERR "sk98lin: Could not register device.\n");
4858                 goto out_free_resources;
4859         }
4860
4861         /* Print adapter specific string from vpd */
4862         printk("%s: %s\n", dev->name, DeviceStr);
4863
4864         /* Print configuration settings */
4865         printk("      PrefPort:%c  RlmtMode:%s\n",
4866                 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
4867                 (pAC->RlmtMode==0)  ? "Check Link State" :
4868                 ((pAC->RlmtMode==1) ? "Check Link State" :
4869                 ((pAC->RlmtMode==3) ? "Check Local Port" :
4870                 ((pAC->RlmtMode==7) ? "Check Segmentation" :
4871                 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
4872
4873         SkGeYellowLED(pAC, pAC->IoBase, 1);
4874
4875         memcpy(&dev->dev_addr, &pAC->Addr.Net[0].CurrentMacAddress, 6);
4876         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4877
4878         pNet->PortNr = 0;
4879         pNet->NetNr  = 0;
4880
4881         boards_found++;
4882
4883         /* More then one port found */
4884         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
4885                 if ((dev = alloc_etherdev(sizeof(DEV_NET))) == 0) {
4886                         printk(KERN_ERR "Unable to allocate etherdev "
4887                                 "structure!\n");
4888                         goto out;
4889                 }
4890
4891                 pAC->dev[1]   = dev;
4892                 pNet          = netdev_priv(dev);
4893                 pNet->PortNr  = 1;
4894                 pNet->NetNr   = 1;
4895                 pNet->pAC     = pAC;
4896
4897                 dev->open               = &SkGeOpen;
4898                 dev->stop               = &SkGeClose;
4899                 dev->hard_start_xmit    = &SkGeXmit;
4900                 dev->get_stats          = &SkGeStats;
4901                 dev->set_multicast_list = &SkGeSetRxMode;
4902                 dev->set_mac_address    = &SkGeSetMacAddr;
4903                 dev->do_ioctl           = &SkGeIoctl;
4904                 dev->change_mtu         = &SkGeChangeMtu;
4905                 SET_NETDEV_DEV(dev, &pdev->dev);
4906                 SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4907
4908                 if (pAC->ChipsetType) {
4909 #ifdef USE_SK_TX_CHECKSUM
4910                         dev->features |= NETIF_F_IP_CSUM;
4911 #endif
4912 #ifdef SK_ZEROCOPY
4913                         dev->features |= NETIF_F_SG;
4914 #endif
4915 #ifdef USE_SK_RX_CHECKSUM
4916                         pAC->RxPort[1].RxCsum = 1;
4917 #endif
4918                 }
4919
4920                 if (register_netdev(dev)) {
4921                         printk(KERN_ERR "sk98lin: Could not register device for seconf port.\n");
4922                         free_netdev(dev);
4923                         pAC->dev[1] = pAC->dev[0];
4924                 } else {
4925                         memcpy(&dev->dev_addr,
4926                                         &pAC->Addr.Net[1].CurrentMacAddress, 6);
4927                         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4928
4929                         printk("%s: %s\n", dev->name, DeviceStr);
4930                         printk("      PrefPort:B  RlmtMode:Dual Check Link State\n");
4931                 }
4932         }
4933
4934         /* Save the hardware revision */
4935         pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
4936                 (pAC->GIni.GIPciHwRev & 0x0F);
4937
4938         /* Set driver globals */
4939         pAC->Pnmi.pDriverFileName    = DRIVER_FILE_NAME;
4940         pAC->Pnmi.pDriverReleaseDate = DRIVER_REL_DATE;
4941
4942         memset(&pAC->PnmiBackup, 0, sizeof(SK_PNMI_STRUCT_DATA));
4943         memcpy(&pAC->PnmiBackup, &pAC->PnmiStruct, sizeof(SK_PNMI_STRUCT_DATA));
4944
4945         pci_set_drvdata(pdev, dev);
4946         return 0;
4947
4948  out_free_resources:
4949         FreeResources(dev);
4950  out_free_netdev:
4951         free_netdev(dev);
4952  out_disable_device:
4953         pci_disable_device(pdev);
4954  out:
4955         return error;
4956 }
4957
4958 static void __devexit skge_remove_one(struct pci_dev *pdev)
4959 {
4960         struct net_device *dev = pci_get_drvdata(pdev);
4961         DEV_NET *pNet = netdev_priv(dev);
4962         SK_AC *pAC = pNet->pAC;
4963         struct net_device *otherdev = pAC->dev[1];
4964
4965         unregister_netdev(dev);
4966
4967         SkGeYellowLED(pAC, pAC->IoBase, 0);
4968
4969         if (pAC->BoardLevel == SK_INIT_RUN) {
4970                 SK_EVPARA EvPara;
4971                 unsigned long Flags;
4972
4973                 /* board is still alive */
4974                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
4975                 EvPara.Para32[0] = 0;
4976                 EvPara.Para32[1] = -1;
4977                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
4978                 EvPara.Para32[0] = 1;
4979                 EvPara.Para32[1] = -1;
4980                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
4981                 SkEventDispatcher(pAC, pAC->IoBase);
4982                 /* disable interrupts */
4983                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4984                 SkGeDeInit(pAC, pAC->IoBase);
4985                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
4986                 pAC->BoardLevel = SK_INIT_DATA;
4987                 /* We do NOT check here, if IRQ was pending, of course*/
4988         }
4989
4990         if (pAC->BoardLevel == SK_INIT_IO) {
4991                 /* board is still alive */
4992                 SkGeDeInit(pAC, pAC->IoBase);
4993                 pAC->BoardLevel = SK_INIT_DATA;
4994         }
4995
4996         FreeResources(dev);
4997         free_netdev(dev);
4998         if (otherdev != dev)
4999                 free_netdev(otherdev);
5000         kfree(pAC);
5001 }
5002
5003 #ifdef CONFIG_PM
5004 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
5005 {
5006         struct net_device *dev = pci_get_drvdata(pdev);
5007         DEV_NET *pNet = netdev_priv(dev);
5008         SK_AC *pAC = pNet->pAC;
5009         struct net_device *otherdev = pAC->dev[1];
5010
5011         if (netif_running(dev)) {
5012                 netif_carrier_off(dev);
5013                 DoPrintInterfaceChange = SK_FALSE;
5014                 SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
5015                 netif_device_detach(dev);
5016         }
5017         if (otherdev != dev) {
5018                 if (netif_running(otherdev)) {
5019                         netif_carrier_off(otherdev);
5020                         DoPrintInterfaceChange = SK_FALSE;
5021                         SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
5022                         netif_device_detach(otherdev);
5023                 }
5024         }
5025
5026         pci_save_state(pdev);
5027         pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
5028         if (pAC->AllocFlag & SK_ALLOC_IRQ) {
5029                 free_irq(dev->irq, dev);
5030         }
5031         pci_disable_device(pdev);
5032         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5033
5034         return 0;
5035 }
5036
5037 static int skge_resume(struct pci_dev *pdev)
5038 {
5039         struct net_device *dev = pci_get_drvdata(pdev);
5040         DEV_NET *pNet = netdev_priv(dev);
5041         SK_AC *pAC = pNet->pAC;
5042         struct net_device *otherdev = pAC->dev[1];
5043         int ret;
5044
5045         pci_set_power_state(pdev, PCI_D0);
5046         pci_restore_state(pdev);
5047         pci_enable_device(pdev);
5048         pci_set_master(pdev);
5049         if (pAC->GIni.GIMacsFound == 2)
5050                 ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, "sk98lin", dev);
5051         else
5052                 ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, "sk98lin", dev);
5053         if (ret) {
5054                 printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
5055                 pAC->AllocFlag &= ~SK_ALLOC_IRQ;
5056                 dev->irq = 0;
5057                 pci_disable_device(pdev);
5058                 return -EBUSY;
5059         }
5060
5061         netif_device_attach(dev);
5062         if (netif_running(dev)) {
5063                 DoPrintInterfaceChange = SK_FALSE;
5064                 SkDrvInitAdapter(pAC, 0);    /* first device  */
5065         }
5066         if (otherdev != dev) {
5067                 netif_device_attach(otherdev);
5068                 if (netif_running(otherdev)) {
5069                         DoPrintInterfaceChange = SK_FALSE;
5070                         SkDrvInitAdapter(pAC, 1);    /* second device  */
5071                 }
5072         }
5073
5074         return 0;
5075 }
5076 #else
5077 #define skge_suspend NULL
5078 #define skge_resume NULL
5079 #endif
5080
5081 static struct pci_device_id skge_pci_tbl[] = {
5082         { PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5083         { PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5084         { PCI_VENDOR_ID_SYSKONNECT, 0x4300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5085         { PCI_VENDOR_ID_SYSKONNECT, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5086 /* DLink card does not have valid VPD so this driver gags
5087  *      { PCI_VENDOR_ID_DLINK, 0x4c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5088  */
5089         { PCI_VENDOR_ID_MARVELL, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5090         { PCI_VENDOR_ID_MARVELL, 0x5005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5091         { PCI_VENDOR_ID_CNET, 0x434e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5092         { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
5093         { PCI_VENDOR_ID_LINKSYS, 0x1064, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5094         { 0 }
5095 };
5096
5097 MODULE_DEVICE_TABLE(pci, skge_pci_tbl);
5098
5099 static struct pci_driver skge_driver = {
5100         .name           = "sk98lin",
5101         .id_table       = skge_pci_tbl,
5102         .probe          = skge_probe_one,
5103         .remove         = __devexit_p(skge_remove_one),
5104         .suspend        = skge_suspend,
5105         .resume         = skge_resume,
5106 };
5107
5108 static int __init skge_init(void)
5109 {
5110         return pci_module_init(&skge_driver);
5111 }
5112
5113 static void __exit skge_exit(void)
5114 {
5115         pci_unregister_driver(&skge_driver);
5116 }
5117
5118 module_init(skge_init);
5119 module_exit(skge_exit);