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/in.h>
 111 #include        <linux/module.h>
 112 #include        <linux/moduleparam.h>
 113 #include        <linux/init.h>
 114 #include        <linux/dma-mapping.h>
 115 #include        <linux/ip.h>
 116
 117 #include        "h/skdrv1st.h"
 118 #include        "h/skdrv2nd.h"
 119
 120 /*******************************************************************************
 121  *
 122  * Defines
 123  *
 124  ******************************************************************************/
 125
 126 /* for debuging on x86 only */
 127 /* #define BREAKPOINT() asm(" int $3"); */
 128
 129 /* use the transmit hw checksum driver functionality */
 130 #define USE_SK_TX_CHECKSUM
 131
 132 /* use the receive hw checksum driver functionality */
 133 #define USE_SK_RX_CHECKSUM
 134
 135 /* use the scatter-gather functionality with sendfile() */
 136 #define SK_ZEROCOPY
 137
 138 /* use of a transmit complete interrupt */
 139 #define USE_TX_COMPLETE
 140
 141 /*
 142  * threshold for copying small receive frames
 143  * set to 0 to avoid copying, set to 9001 to copy all frames
 144  */
 145 #define SK_COPY_THRESHOLD       50
 146
 147 /* number of adapters that can be configured via command line params */
 148 #define SK_MAX_CARD_PARAM       16
 149
 150
 151
 152 /*
 153  * use those defines for a compile-in version of the driver instead
 154  * of command line parameters
 155  */
 156 // #define LINK_SPEED_A {"Auto", }
 157 // #define LINK_SPEED_B {"Auto", }
 158 // #define AUTO_NEG_A   {"Sense", }
 159 // #define AUTO_NEG_B   {"Sense", }
 160 // #define DUP_CAP_A    {"Both", }
 161 // #define DUP_CAP_B    {"Both", }
 162 // #define FLOW_CTRL_A  {"SymOrRem", }
 163 // #define FLOW_CTRL_B  {"SymOrRem", }
 164 // #define ROLE_A       {"Auto", }
 165 // #define ROLE_B       {"Auto", }
 166 // #define PREF_PORT    {"A", }
 167 // #define CON_TYPE     {"Auto", }
 168 // #define RLMT_MODE    {"CheckLinkState", }
 169
 170 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
 171 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
 172 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
 173
 174
 175 /* Set blink mode*/
 176 #define OEM_CONFIG_VALUE (      SK_ACT_LED_BLINK | \
 177                                 SK_DUP_LED_NORMAL | \
 178                                 SK_LED_LINK100_ON)
 179
 180
 181 /* Isr return value */
 182 #define SkIsrRetVar     irqreturn_t
 183 #define SkIsrRetNone    IRQ_NONE
 184 #define SkIsrRetHandled IRQ_HANDLED
 185
 186
 187 /*******************************************************************************
 188  *
 189  * Local Function Prototypes
 190  *
 191  ******************************************************************************/
 192
 193 static void     FreeResources(struct SK_NET_DEVICE *dev);
 194 static int      SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
 195 static SK_BOOL  BoardAllocMem(SK_AC *pAC);
 196 static void     BoardFreeMem(SK_AC *pAC);
 197 static void     BoardInitMem(SK_AC *pAC);
 198 static void     SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, int*, SK_BOOL);
 199 static SkIsrRetVar      SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
 200 static SkIsrRetVar      SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
 201 static int      SkGeOpen(struct SK_NET_DEVICE *dev);
 202 static int      SkGeClose(struct SK_NET_DEVICE *dev);
 203 static int      SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 204 static int      SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
 205 static void     SkGeSetRxMode(struct SK_NET_DEVICE *dev);
 206 static struct   net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
 207 static int      SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
 208 static void     GetConfiguration(SK_AC*);
 209 static int      XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
 210 static void     FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
 211 static void     FillRxRing(SK_AC*, RX_PORT*);
 212 static SK_BOOL  FillRxDescriptor(SK_AC*, RX_PORT*);
 213 static void     ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
 214 static void     ClearAndStartRx(SK_AC*, int);
 215 static void     ClearTxIrq(SK_AC*, int, int);
 216 static void     ClearRxRing(SK_AC*, RX_PORT*);
 217 static void     ClearTxRing(SK_AC*, TX_PORT*);
 218 static int      SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
 219 static void     PortReInitBmu(SK_AC*, int);
 220 static int      SkGeIocMib(DEV_NET*, unsigned int, int);
 221 static int      SkGeInitPCI(SK_AC *pAC);
 222 static void     StartDrvCleanupTimer(SK_AC *pAC);
 223 static void     StopDrvCleanupTimer(SK_AC *pAC);
 224 static int      XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
 225
 226 #ifdef SK_DIAG_SUPPORT
 227 static SK_U32   ParseDeviceNbrFromSlotName(const char *SlotName);
 228 static int      SkDrvInitAdapter(SK_AC *pAC, int devNbr);
 229 static int      SkDrvDeInitAdapter(SK_AC *pAC, int devNbr);
 230 #endif
 231
 232 /*******************************************************************************
 233  *
 234  * Extern Function Prototypes
 235  *
 236  ******************************************************************************/
 237 extern void SkDimEnableModerationIfNeeded(SK_AC *pAC);
 238 extern void SkDimDisplayModerationSettings(SK_AC *pAC);
 239 extern void SkDimStartModerationTimer(SK_AC *pAC);
 240 extern void SkDimModerate(SK_AC *pAC);
 241 extern void SkGeBlinkTimer(unsigned long data);
 242
 243 #ifdef DEBUG
 244 static void     DumpMsg(struct sk_buff*, char*);
 245 static void     DumpData(char*, int);
 246 static void     DumpLong(char*, int);
 247 #endif
 248
 249 /* global variables *********************************************************/
 250 static SK_BOOL DoPrintInterfaceChange = SK_TRUE;
 251 extern  struct ethtool_ops SkGeEthtoolOps;
 252
 253 /* local variables **********************************************************/
 254 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
 255 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
 256
 257 /*****************************************************************************
 258  *
 259  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
 260  *
 261  * Description:
 262  *      This routine writes a 32 bit value to the pci configuration
 263  *      space.
 264  *
 265  * Returns:
 266  *      0 - indicate everything worked ok.
 267  *      != 0 - error indication
 268  */
 269 static inline int SkPciWriteCfgDWord(
 270 SK_AC *pAC,     /* Adapter Control structure pointer */
 271 int PciAddr,            /* PCI register address */
 272 SK_U32 Val)             /* pointer to store the read value */
 273 {
 274         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
 275         return(0);
 276 } /* SkPciWriteCfgDWord */
 277
 278 /*****************************************************************************
 279  *
 280  *      SkGeInitPCI - Init the PCI resources
 281  *
 282  * Description:
 283  *      This function initialize the PCI resources and IO
 284  *
 285  * Returns: N/A
 286  *
 287  */
 288 int SkGeInitPCI(SK_AC *pAC)
 289 {
 290         struct SK_NET_DEVICE *dev = pAC->dev[0];
 291         struct pci_dev *pdev = pAC->PciDev;
 292         int retval;
 293
 294         if (pci_enable_device(pdev) != 0) {
 295                 return 1;
 296         }
 297
 298         dev->mem_start = pci_resource_start (pdev, 0);
 299         pci_set_master(pdev);
 300
 301         if (pci_request_regions(pdev, "sk98lin") != 0) {
 302                 retval = 2;
 303                 goto out_disable;
 304         }
 305
 306 #ifdef SK_BIG_ENDIAN
 307         /*
 308          * On big endian machines, we use the adapter's aibility of
 309          * reading the descriptors as big endian.
 310          */
 311         {
 312                 SK_U32          our2;
 313                 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
 314                 our2 |= PCI_REV_DESC;
 315                 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
 316         }
 317 #endif
 318
 319         /*
 320          * Remap the regs into kernel space.
 321          */
 322         pAC->IoBase = ioremap_nocache(dev->mem_start, 0x4000);
 323
 324         if (!pAC->IoBase){
 325                 retval = 3;
 326                 goto out_release;
 327         }
 328
 329         return 0;
 330
 331  out_release:
 332         pci_release_regions(pdev);
 333  out_disable:
 334         pci_disable_device(pdev);
 335         return retval;
 336 }
 337
 338
 339 /*****************************************************************************
 340  *
 341  *      FreeResources - release resources allocated for adapter
 342  *
 343  * Description:
 344  *      This function releases the IRQ, unmaps the IO and
 345  *      frees the desriptor ring.
 346  *
 347  * Returns: N/A
 348  *
 349  */
 350 static void FreeResources(struct SK_NET_DEVICE *dev)
 351 {
 352 SK_U32 AllocFlag;
 353 DEV_NET         *pNet;
 354 SK_AC           *pAC;
 355
 356         pNet = netdev_priv(dev);
 357         pAC = pNet->pAC;
 358         AllocFlag = pAC->AllocFlag;
 359         if (pAC->PciDev) {
 360                 pci_release_regions(pAC->PciDev);
 361         }
 362         if (AllocFlag & SK_ALLOC_IRQ) {
 363                 free_irq(dev->irq, dev);
 364         }
 365         if (pAC->IoBase) {
 366                 iounmap(pAC->IoBase);
 367         }
 368         if (pAC->pDescrMem) {
 369                 BoardFreeMem(pAC);
 370         }
 371
 372 } /* FreeResources */
 373
 374 MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
 375 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
 376 MODULE_LICENSE("GPL");
 377
 378 #ifdef LINK_SPEED_A
 379 static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED;
 380 #else
 381 static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
 382 #endif
 383
 384 #ifdef LINK_SPEED_B
 385 static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED;
 386 #else
 387 static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
 388 #endif
 389
 390 #ifdef AUTO_NEG_A
 391 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
 392 #else
 393 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
 394 #endif
 395
 396 #ifdef DUP_CAP_A
 397 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
 398 #else
 399 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
 400 #endif
 401
 402 #ifdef FLOW_CTRL_A
 403 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
 404 #else
 405 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
 406 #endif
 407
 408 #ifdef ROLE_A
 409 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
 410 #else
 411 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
 412 #endif
 413
 414 #ifdef AUTO_NEG_B
 415 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
 416 #else
 417 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
 418 #endif
 419
 420 #ifdef DUP_CAP_B
 421 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
 422 #else
 423 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
 424 #endif
 425
 426 #ifdef FLOW_CTRL_B
 427 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
 428 #else
 429 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
 430 #endif
 431
 432 #ifdef ROLE_B
 433 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
 434 #else
 435 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
 436 #endif
 437
 438 #ifdef CON_TYPE
 439 static char *ConType[SK_MAX_CARD_PARAM] = CON_TYPE;
 440 #else
 441 static char *ConType[SK_MAX_CARD_PARAM] = {"", };
 442 #endif
 443
 444 #ifdef PREF_PORT
 445 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
 446 #else
 447 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
 448 #endif
 449
 450 #ifdef RLMT_MODE
 451 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
 452 #else
 453 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
 454 #endif
 455
 456 static int   IntsPerSec[SK_MAX_CARD_PARAM];
 457 static char *Moderation[SK_MAX_CARD_PARAM];
 458 static char *ModerationMask[SK_MAX_CARD_PARAM];
 459 static char *AutoSizing[SK_MAX_CARD_PARAM];
 460 static char *Stats[SK_MAX_CARD_PARAM];
 461
 462 module_param_array(Speed_A, charp, NULL, 0);
 463 module_param_array(Speed_B, charp, NULL, 0);
 464 module_param_array(AutoNeg_A, charp, NULL, 0);
 465 module_param_array(AutoNeg_B, charp, NULL, 0);
 466 module_param_array(DupCap_A, charp, NULL, 0);
 467 module_param_array(DupCap_B, charp, NULL, 0);
 468 module_param_array(FlowCtrl_A, charp, NULL, 0);
 469 module_param_array(FlowCtrl_B, charp, NULL, 0);
 470 module_param_array(Role_A, charp, NULL, 0);
 471 module_param_array(Role_B, charp, NULL, 0);
 472 module_param_array(ConType, charp, NULL, 0);
 473 module_param_array(PrefPort, charp, NULL, 0);
 474 module_param_array(RlmtMode, charp, NULL, 0);
 475 /* used for interrupt moderation */
 476 module_param_array(IntsPerSec, int, NULL, 0);
 477 module_param_array(Moderation, charp, NULL, 0);
 478 module_param_array(Stats, charp, NULL, 0);
 479 module_param_array(ModerationMask, charp, NULL, 0);
 480 module_param_array(AutoSizing, charp, NULL, 0);
 481
 482 /*****************************************************************************
 483  *
 484  *      SkGeBoardInit - do level 0 and 1 initialization
 485  *
 486  * Description:
 487  *      This function prepares the board hardware for running. The desriptor
 488  *      ring is set up, the IRQ is allocated and the configuration settings
 489  *      are examined.
 490  *
 491  * Returns:
 492  *      0, if everything is ok
 493  *      !=0, on error
 494  */
 495 static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
 496 {
 497 short   i;
 498 unsigned long Flags;
 499 char    *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
 500 char    *VerStr = VER_STRING;
 501 int     Ret;                    /* return code of request_irq */
 502 SK_BOOL DualNet;
 503
 504         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 505                 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
 506         for (i=0; i<SK_MAX_MACS; i++) {
 507                 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
 508                 pAC->TxPort[i][0].PortIndex = i;
 509                 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
 510                 pAC->RxPort[i].PortIndex = i;
 511         }
 512
 513         /* Initialize the mutexes */
 514         for (i=0; i<SK_MAX_MACS; i++) {
 515                 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
 516                 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
 517         }
 518         spin_lock_init(&pAC->SlowPathLock);
 519
 520         /* setup phy_id blink timer */
 521         pAC->BlinkTimer.function = SkGeBlinkTimer;
 522         pAC->BlinkTimer.data = (unsigned long) dev;
 523         init_timer(&pAC->BlinkTimer);
 524
 525         /* level 0 init common modules here */
 526
 527         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 528         /* Does a RESET on board ...*/
 529         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) {
 530                 printk("HWInit (0) failed.\n");
 531                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 532                 return(-EAGAIN);
 533         }
 534         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_DATA);
 535         SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA);
 536         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_DATA);
 537         SkAddrInit( pAC, pAC->IoBase, SK_INIT_DATA);
 538         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_DATA);
 539         SkTimerInit(pAC, pAC->IoBase, SK_INIT_DATA);
 540
 541         pAC->BoardLevel = SK_INIT_DATA;
 542         pAC->RxBufSize  = ETH_BUF_SIZE;
 543
 544         SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
 545         SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
 546
 547         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 548
 549         /* level 1 init common modules here (HW init) */
 550         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 551         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
 552                 printk("sk98lin: HWInit (1) failed.\n");
 553                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 554                 return(-EAGAIN);
 555         }
 556         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
 557         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
 558         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
 559         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
 560         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
 561         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
 562
 563         /* Set chipset type support */
 564         pAC->ChipsetType = 0;
 565         if ((pAC->GIni.GIChipId == CHIP_ID_YUKON) ||
 566                 (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE)) {
 567                 pAC->ChipsetType = 1;
 568         }
 569
 570         GetConfiguration(pAC);
 571         if (pAC->RlmtNets == 2) {
 572                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
 573         }
 574
 575         pAC->BoardLevel = SK_INIT_IO;
 576         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 577
 578         if (pAC->GIni.GIMacsFound == 2) {
 579                  Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, "sk98lin", dev);
 580         } else if (pAC->GIni.GIMacsFound == 1) {
 581                 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
 582                         "sk98lin", dev);
 583         } else {
 584                 printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n",
 585                        pAC->GIni.GIMacsFound);
 586                 return -EAGAIN;
 587         }
 588
 589         if (Ret) {
 590                 printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n",
 591                        dev->irq);
 592                 return -EAGAIN;
 593         }
 594         pAC->AllocFlag |= SK_ALLOC_IRQ;
 595
 596         /* Alloc memory for this board (Mem for RxD/TxD) : */
 597         if(!BoardAllocMem(pAC)) {
 598                 printk("No memory for descriptor rings.\n");
 599                 return(-EAGAIN);
 600         }
 601
 602         BoardInitMem(pAC);
 603         /* tschilling: New common function with minimum size check. */
 604         DualNet = SK_FALSE;
 605         if (pAC->RlmtNets == 2) {
 606                 DualNet = SK_TRUE;
 607         }
 608
 609         if (SkGeInitAssignRamToQueues(
 610                 pAC,
 611                 pAC->ActivePort,
 612                 DualNet)) {
 613                 BoardFreeMem(pAC);
 614                 printk("sk98lin: SkGeInitAssignRamToQueues failed.\n");
 615                 return(-EAGAIN);
 616         }
 617
 618         return (0);
 619 } /* SkGeBoardInit */
 620
 621
 622 /*****************************************************************************
 623  *
 624  *      BoardAllocMem - allocate the memory for the descriptor rings
 625  *
 626  * Description:
 627  *      This function allocates the memory for all descriptor rings.
 628  *      Each ring is aligned for the desriptor alignment and no ring
 629  *      has a 4 GByte boundary in it (because the upper 32 bit must
 630  *      be constant for all descriptiors in one rings).
 631  *
 632  * Returns:
 633  *      SK_TRUE, if all memory could be allocated
 634  *      SK_FALSE, if not
 635  */
 636 static SK_BOOL BoardAllocMem(
 637 SK_AC   *pAC)
 638 {
 639 caddr_t         pDescrMem;      /* pointer to descriptor memory area */
 640 size_t          AllocLength;    /* length of complete descriptor area */
 641 int             i;              /* loop counter */
 642 unsigned long   BusAddr;
 643
 644
 645         /* rings plus one for alignment (do not cross 4 GB boundary) */
 646         /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
 647 #if (BITS_PER_LONG == 32)
 648         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 649 #else
 650         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 651                 + RX_RING_SIZE + 8;
 652 #endif
 653
 654         pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
 655                                          &pAC->pDescrMemDMA);
 656
 657         if (pDescrMem == NULL) {
 658                 return (SK_FALSE);
 659         }
 660         pAC->pDescrMem = pDescrMem;
 661         BusAddr = (unsigned long) pAC->pDescrMemDMA;
 662
 663         /* Descriptors need 8 byte alignment, and this is ensured
 664          * by pci_alloc_consistent.
 665          */
 666         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 667                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 668                         ("TX%d/A: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 669                         i, (unsigned long) pDescrMem,
 670                         BusAddr));
 671                 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
 672                 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
 673                 pDescrMem += TX_RING_SIZE;
 674                 BusAddr += TX_RING_SIZE;
 675
 676                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 677                         ("RX%d: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 678                         i, (unsigned long) pDescrMem,
 679                         (unsigned long)BusAddr));
 680                 pAC->RxPort[i].pRxDescrRing = pDescrMem;
 681                 pAC->RxPort[i].VRxDescrRing = BusAddr;
 682                 pDescrMem += RX_RING_SIZE;
 683                 BusAddr += RX_RING_SIZE;
 684         } /* for */
 685
 686         return (SK_TRUE);
 687 } /* BoardAllocMem */
 688
 689
 690 /****************************************************************************
 691  *
 692  *      BoardFreeMem - reverse of BoardAllocMem
 693  *
 694  * Description:
 695  *      Free all memory allocated in BoardAllocMem: adapter context,
 696  *      descriptor rings, locks.
 697  *
 698  * Returns:     N/A
 699  */
 700 static void BoardFreeMem(
 701 SK_AC           *pAC)
 702 {
 703 size_t          AllocLength;    /* length of complete descriptor area */
 704
 705         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 706                 ("BoardFreeMem\n"));
 707 #if (BITS_PER_LONG == 32)
 708         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 709 #else
 710         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 711                 + RX_RING_SIZE + 8;
 712 #endif
 713
 714         pci_free_consistent(pAC->PciDev, AllocLength,
 715                             pAC->pDescrMem, pAC->pDescrMemDMA);
 716         pAC->pDescrMem = NULL;
 717 } /* BoardFreeMem */
 718
 719
 720 /*****************************************************************************
 721  *
 722  *      BoardInitMem - initiate the descriptor rings
 723  *
 724  * Description:
 725  *      This function sets the descriptor rings up in memory.
 726  *      The adapter is initialized with the descriptor start addresses.
 727  *
 728  * Returns:     N/A
 729  */
 730 static void BoardInitMem(
 731 SK_AC   *pAC)   /* pointer to adapter context */
 732 {
 733 int     i;              /* loop counter */
 734 int     RxDescrSize;    /* the size of a rx descriptor rounded up to alignment*/
 735 int     TxDescrSize;    /* the size of a tx descriptor rounded up to alignment*/
 736
 737         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 738                 ("BoardInitMem\n"));
 739
 740         RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 741         pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
 742         TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 743         pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
 744
 745         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 746                 SetupRing(
 747                         pAC,
 748                         pAC->TxPort[i][0].pTxDescrRing,
 749                         pAC->TxPort[i][0].VTxDescrRing,
 750                         (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
 751                         (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
 752                         (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
 753                         &pAC->TxPort[i][0].TxdRingFree,
 754                         SK_TRUE);
 755                 SetupRing(
 756                         pAC,
 757                         pAC->RxPort[i].pRxDescrRing,
 758                         pAC->RxPort[i].VRxDescrRing,
 759                         &pAC->RxPort[i].pRxdRingHead,
 760                         &pAC->RxPort[i].pRxdRingTail,
 761                         &pAC->RxPort[i].pRxdRingPrev,
 762                         &pAC->RxPort[i].RxdRingFree,
 763                         SK_FALSE);
 764         }
 765 } /* BoardInitMem */
 766
 767
 768 /*****************************************************************************
 769  *
 770  *      SetupRing - create one descriptor ring
 771  *
 772  * Description:
 773  *      This function creates one descriptor ring in the given memory area.
 774  *      The head, tail and number of free descriptors in the ring are set.
 775  *
 776  * Returns:
 777  *      none
 778  */
 779 static void SetupRing(
 780 SK_AC           *pAC,
 781 void            *pMemArea,      /* a pointer to the memory area for the ring */
 782 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
 783 RXD             **ppRingHead,   /* address where the head should be written */
 784 RXD             **ppRingTail,   /* address where the tail should be written */
 785 RXD             **ppRingPrev,   /* address where the tail should be written */
 786 int             *pRingFree,     /* address where the # of free descr. goes */
 787 SK_BOOL         IsTx)           /* flag: is this a tx ring */
 788 {
 789 int     i;              /* loop counter */
 790 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
 791 int     DescrNum;       /* number of descriptors per ring */
 792 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
 793 RXD     *pNextDescr;    /* pointer to the next descriptor */
 794 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
 795 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
 796
 797         if (IsTx == SK_TRUE) {
 798                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
 799                         DESCR_ALIGN;
 800                 DescrNum = TX_RING_SIZE / DescrSize;
 801         } else {
 802                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
 803                         DESCR_ALIGN;
 804                 DescrNum = RX_RING_SIZE / DescrSize;
 805         }
 806
 807         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 808                 ("Descriptor size: %d   Descriptor Number: %d\n",
 809                 DescrSize,DescrNum));
 810
 811         pDescr = (RXD*) pMemArea;
 812         pPrevDescr = NULL;
 813         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 814         VNextDescr = VMemArea + DescrSize;
 815         for(i=0; i<DescrNum; i++) {
 816                 /* set the pointers right */
 817                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
 818                 pDescr->pNextRxd = pNextDescr;
 819                 if (!IsTx) pDescr->TcpSumStarts = ETH_HLEN << 16 | ETH_HLEN;
 820
 821                 /* advance one step */
 822                 pPrevDescr = pDescr;
 823                 pDescr = pNextDescr;
 824                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 825                 VNextDescr += DescrSize;
 826         }
 827         pPrevDescr->pNextRxd = (RXD*) pMemArea;
 828         pPrevDescr->VNextRxd = VMemArea;
 829         pDescr = (RXD*) pMemArea;
 830         *ppRingHead = (RXD*) pMemArea;
 831         *ppRingTail = *ppRingHead;
 832         *ppRingPrev = pPrevDescr;
 833         *pRingFree = DescrNum;
 834 } /* SetupRing */
 835
 836
 837 /*****************************************************************************
 838  *
 839  *      PortReInitBmu - re-initiate the descriptor rings for one port
 840  *
 841  * Description:
 842  *      This function reinitializes the descriptor rings of one port
 843  *      in memory. The port must be stopped before.
 844  *      The HW is initialized with the descriptor start addresses.
 845  *
 846  * Returns:
 847  *      none
 848  */
 849 static void PortReInitBmu(
 850 SK_AC   *pAC,           /* pointer to adapter context */
 851 int     PortIndex)      /* index of the port for which to re-init */
 852 {
 853         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 854                 ("PortReInitBmu "));
 855
 856         /* set address of first descriptor of ring in BMU */
 857         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_L,
 858                 (uint32_t)(((caddr_t)
 859                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 860                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 861                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
 862                 0xFFFFFFFF));
 863         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_H,
 864                 (uint32_t)(((caddr_t)
 865                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 866                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 867                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
 868         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_L,
 869                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 870                 pAC->RxPort[PortIndex].pRxDescrRing +
 871                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
 872         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_H,
 873                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 874                 pAC->RxPort[PortIndex].pRxDescrRing +
 875                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
 876 } /* PortReInitBmu */
 877
 878
 879 /****************************************************************************
 880  *
 881  *      SkGeIsr - handle adapter interrupts
 882  *
 883  * Description:
 884  *      The interrupt routine is called when the network adapter
 885  *      generates an interrupt. It may also be called if another device
 886  *      shares this interrupt vector with the driver.
 887  *
 888  * Returns: N/A
 889  *
 890  */
 891 static SkIsrRetVar SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
 892 {
 893 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
 894 DEV_NET         *pNet;
 895 SK_AC           *pAC;
 896 SK_U32          IntSrc;         /* interrupts source register contents */
 897
 898         pNet = netdev_priv(dev);
 899         pAC = pNet->pAC;
 900
 901         /*
 902          * Check and process if its our interrupt
 903          */
 904         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
 905         if (IntSrc == 0) {
 906                 return SkIsrRetNone;
 907         }
 908
 909         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
 910 #if 0 /* software irq currently not used */
 911                 if (IntSrc & IS_IRQ_SW) {
 912                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 913                                 SK_DBGCAT_DRV_INT_SRC,
 914                                 ("Software IRQ\n"));
 915                 }
 916 #endif
 917                 if (IntSrc & IS_R1_F) {
 918                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 919                                 SK_DBGCAT_DRV_INT_SRC,
 920                                 ("EOF RX1 IRQ\n"));
 921                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
 922                         SK_PNMI_CNT_RX_INTR(pAC, 0);
 923                 }
 924                 if (IntSrc & IS_R2_F) {
 925                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 926                                 SK_DBGCAT_DRV_INT_SRC,
 927                                 ("EOF RX2 IRQ\n"));
 928                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
 929                         SK_PNMI_CNT_RX_INTR(pAC, 1);
 930                 }
 931 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 932                 if (IntSrc & IS_XA1_F) {
 933                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 934                                 SK_DBGCAT_DRV_INT_SRC,
 935                                 ("EOF AS TX1 IRQ\n"));
 936                         SK_PNMI_CNT_TX_INTR(pAC, 0);
 937                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 938                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
 939                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 940                 }
 941                 if (IntSrc & IS_XA2_F) {
 942                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 943                                 SK_DBGCAT_DRV_INT_SRC,
 944                                 ("EOF AS TX2 IRQ\n"));
 945                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 946                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 947                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
 948                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 949                 }
 950 #if 0 /* only if sync. queues used */
 951                 if (IntSrc & IS_XS1_F) {
 952                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 953                                 SK_DBGCAT_DRV_INT_SRC,
 954                                 ("EOF SY TX1 IRQ\n"));
 955                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 956                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 957                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
 958                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 959                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
 960                 }
 961                 if (IntSrc & IS_XS2_F) {
 962                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 963                                 SK_DBGCAT_DRV_INT_SRC,
 964                                 ("EOF SY TX2 IRQ\n"));
 965                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 966                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 967                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
 968                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 969                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
 970                 }
 971 #endif
 972 #endif
 973
 974                 /* do all IO at once */
 975                 if (IntSrc & IS_R1_F)
 976                         ClearAndStartRx(pAC, 0);
 977                 if (IntSrc & IS_R2_F)
 978                         ClearAndStartRx(pAC, 1);
 979 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 980                 if (IntSrc & IS_XA1_F)
 981                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
 982                 if (IntSrc & IS_XA2_F)
 983                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
 984 #endif
 985                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
 986         } /* while (IntSrc & IRQ_MASK != 0) */
 987
 988         IntSrc &= pAC->GIni.GIValIrqMask;
 989         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
 990                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
 991                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
 992                 pAC->CheckQueue = SK_FALSE;
 993                 spin_lock(&pAC->SlowPathLock);
 994                 if (IntSrc & SPECIAL_IRQS)
 995                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
 996
 997                 SkEventDispatcher(pAC, pAC->IoBase);
 998                 spin_unlock(&pAC->SlowPathLock);
 999         }
1000         /*
1001          * do it all again is case we cleared an interrupt that
1002          * came in after handling the ring (OUTs may be delayed
1003          * in hardware buffers, but are through after IN)
1004          *
1005          * rroesler: has been commented out and shifted to
1006          *           SkGeDrvEvent(), because it is timer
1007          *           guarded now
1008          *
1009         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1010         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1011          */
1012
1013         if (pAC->CheckQueue) {
1014                 pAC->CheckQueue = SK_FALSE;
1015                 spin_lock(&pAC->SlowPathLock);
1016                 SkEventDispatcher(pAC, pAC->IoBase);
1017                 spin_unlock(&pAC->SlowPathLock);
1018         }
1019
1020         /* IRQ is processed - Enable IRQs again*/
1021         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1022
1023                 return SkIsrRetHandled;
1024 } /* SkGeIsr */
1025
1026
1027 /****************************************************************************
1028  *
1029  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1030  *
1031  * Description:
1032  *      The interrupt routine is called when the network adapter
1033  *      generates an interrupt. It may also be called if another device
1034  *      shares this interrupt vector with the driver.
1035  *      This is the same as above, but handles only one port.
1036  *
1037  * Returns: N/A
1038  *
1039  */
1040 static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1041 {
1042 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1043 DEV_NET         *pNet;
1044 SK_AC           *pAC;
1045 SK_U32          IntSrc;         /* interrupts source register contents */
1046
1047         pNet = netdev_priv(dev);
1048         pAC = pNet->pAC;
1049
1050         /*
1051          * Check and process if its our interrupt
1052          */
1053         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1054         if (IntSrc == 0) {
1055                 return SkIsrRetNone;
1056         }
1057
1058         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1059 #if 0 /* software irq currently not used */
1060                 if (IntSrc & IS_IRQ_SW) {
1061                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1062                                 SK_DBGCAT_DRV_INT_SRC,
1063                                 ("Software IRQ\n"));
1064                 }
1065 #endif
1066                 if (IntSrc & IS_R1_F) {
1067                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1068                                 SK_DBGCAT_DRV_INT_SRC,
1069                                 ("EOF RX1 IRQ\n"));
1070                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1071                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1072                 }
1073 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1074                 if (IntSrc & IS_XA1_F) {
1075                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1076                                 SK_DBGCAT_DRV_INT_SRC,
1077                                 ("EOF AS TX1 IRQ\n"));
1078                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1079                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1080                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1081                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1082                 }
1083 #if 0 /* only if sync. queues used */
1084                 if (IntSrc & IS_XS1_F) {
1085                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1086                                 SK_DBGCAT_DRV_INT_SRC,
1087                                 ("EOF SY TX1 IRQ\n"));
1088                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1089                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1090                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1091                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1092                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1093                 }
1094 #endif
1095 #endif
1096
1097                 /* do all IO at once */
1098                 if (IntSrc & IS_R1_F)
1099                         ClearAndStartRx(pAC, 0);
1100 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1101                 if (IntSrc & IS_XA1_F)
1102                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1103 #endif
1104                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1105         } /* while (IntSrc & IRQ_MASK != 0) */
1106
1107         IntSrc &= pAC->GIni.GIValIrqMask;
1108         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1109                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1110                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1111                 pAC->CheckQueue = SK_FALSE;
1112                 spin_lock(&pAC->SlowPathLock);
1113                 if (IntSrc & SPECIAL_IRQS)
1114                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1115
1116                 SkEventDispatcher(pAC, pAC->IoBase);
1117                 spin_unlock(&pAC->SlowPathLock);
1118         }
1119         /*
1120          * do it all again is case we cleared an interrupt that
1121          * came in after handling the ring (OUTs may be delayed
1122          * in hardware buffers, but are through after IN)
1123          *
1124          * rroesler: has been commented out and shifted to
1125          *           SkGeDrvEvent(), because it is timer
1126          *           guarded now
1127          *
1128         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1129          */
1130
1131         /* IRQ is processed - Enable IRQs again*/
1132         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1133
1134                 return SkIsrRetHandled;
1135 } /* SkGeIsrOnePort */
1136
1137 #ifdef CONFIG_NET_POLL_CONTROLLER
1138 /****************************************************************************
1139  *
1140  *      SkGePollController - polling receive, for netconsole
1141  *
1142  * Description:
1143  *      Polling receive - used by netconsole and other diagnostic tools
1144  *      to allow network i/o with interrupts disabled.
1145  *
1146  * Returns: N/A
1147  */
1148 static void SkGePollController(struct net_device *dev)
1149 {
1150         disable_irq(dev->irq);
1151         SkGeIsr(dev->irq, dev, NULL);
1152         enable_irq(dev->irq);
1153 }
1154 #endif
1155
1156 /****************************************************************************
1157  *
1158  *      SkGeOpen - handle start of initialized adapter
1159  *
1160  * Description:
1161  *      This function starts the initialized adapter.
1162  *      The board level variable is set and the adapter is
1163  *      brought to full functionality.
1164  *      The device flags are set for operation.
1165  *      Do all necessary level 2 initialization, enable interrupts and
1166  *      give start command to RLMT.
1167  *
1168  * Returns:
1169  *      0 on success
1170  *      != 0 on error
1171  */
1172 static int SkGeOpen(
1173 struct SK_NET_DEVICE    *dev)
1174 {
1175         DEV_NET                 *pNet;
1176         SK_AC                   *pAC;
1177         unsigned long   Flags;          /* for spin lock */
1178         int                             i;
1179         SK_EVPARA               EvPara;         /* an event parameter union */
1180
1181         pNet = netdev_priv(dev);
1182         pAC = pNet->pAC;
1183
1184         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1185                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1186
1187 #ifdef SK_DIAG_SUPPORT
1188         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1189                 if (pAC->Pnmi.DiagAttached == SK_DIAG_RUNNING) {
1190                         return (-1);   /* still in use by diag; deny actions */
1191                 }
1192         }
1193 #endif
1194
1195         /* Set blink mode */
1196         if ((pAC->PciDev->vendor == 0x1186) || (pAC->PciDev->vendor == 0x11ab ))
1197                 pAC->GIni.GILedBlinkCtrl = OEM_CONFIG_VALUE;
1198
1199         if (pAC->BoardLevel == SK_INIT_DATA) {
1200                 /* level 1 init common modules here */
1201                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
1202                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1203                         return (-1);
1204                 }
1205                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_IO);
1206                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_IO);
1207                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_IO);
1208                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_IO);
1209                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_IO);
1210                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_IO);
1211                 pAC->BoardLevel = SK_INIT_IO;
1212         }
1213
1214         if (pAC->BoardLevel != SK_INIT_RUN) {
1215                 /* tschilling: Level 2 init modules here, check return value. */
1216                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_RUN) != 0) {
1217                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1218                         return (-1);
1219                 }
1220                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_RUN);
1221                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1222                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1223                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1224                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1225                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1226                 pAC->BoardLevel = SK_INIT_RUN;
1227         }
1228
1229         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1230                 /* Enable transmit descriptor polling. */
1231                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1232                 FillRxRing(pAC, &pAC->RxPort[i]);
1233         }
1234         SkGeYellowLED(pAC, pAC->IoBase, 1);
1235
1236         StartDrvCleanupTimer(pAC);
1237         SkDimEnableModerationIfNeeded(pAC);
1238         SkDimDisplayModerationSettings(pAC);
1239
1240         pAC->GIni.GIValIrqMask &= IRQ_MASK;
1241
1242         /* enable Interrupts */
1243         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1244         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1245
1246         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1247
1248         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1249                 EvPara.Para32[0] = pAC->RlmtNets;
1250                 EvPara.Para32[1] = -1;
1251                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1252                         EvPara);
1253                 EvPara.Para32[0] = pAC->RlmtMode;
1254                 EvPara.Para32[1] = 0;
1255                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1256                         EvPara);
1257         }
1258
1259         EvPara.Para32[0] = pNet->NetNr;
1260         EvPara.Para32[1] = -1;
1261         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1262         SkEventDispatcher(pAC, pAC->IoBase);
1263         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1264
1265         pAC->MaxPorts++;
1266
1267
1268         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1269                 ("SkGeOpen suceeded\n"));
1270
1271         return (0);
1272 } /* SkGeOpen */
1273
1274
1275 /****************************************************************************
1276  *
1277  *      SkGeClose - Stop initialized adapter
1278  *
1279  * Description:
1280  *      Close initialized adapter.
1281  *
1282  * Returns:
1283  *      0 - on success
1284  *      error code - on error
1285  */
1286 static int SkGeClose(
1287 struct SK_NET_DEVICE    *dev)
1288 {
1289         DEV_NET         *pNet;
1290         DEV_NET         *newPtrNet;
1291         SK_AC           *pAC;
1292
1293         unsigned long   Flags;          /* for spin lock */
1294         int             i;
1295         int             PortIdx;
1296         SK_EVPARA       EvPara;
1297
1298         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1299                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1300
1301         pNet = netdev_priv(dev);
1302         pAC = pNet->pAC;
1303
1304 #ifdef SK_DIAG_SUPPORT
1305         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1306                 if (pAC->DiagFlowCtrl == SK_FALSE) {
1307                         /*
1308                         ** notify that the interface which has been closed
1309                         ** by operator interaction must not be started up
1310                         ** again when the DIAG has finished.
1311                         */
1312                         newPtrNet = netdev_priv(pAC->dev[0]);
1313                         if (newPtrNet == pNet) {
1314                                 pAC->WasIfUp[0] = SK_FALSE;
1315                         } else {
1316                                 pAC->WasIfUp[1] = SK_FALSE;
1317                         }
1318                         return 0; /* return to system everything is fine... */
1319                 } else {
1320                         pAC->DiagFlowCtrl = SK_FALSE;
1321                 }
1322         }
1323 #endif
1324
1325         netif_stop_queue(dev);
1326
1327         if (pAC->RlmtNets == 1)
1328                 PortIdx = pAC->ActivePort;
1329         else
1330                 PortIdx = pNet->NetNr;
1331
1332         StopDrvCleanupTimer(pAC);
1333
1334         /*
1335          * Clear multicast table, promiscuous mode ....
1336          */
1337         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1338         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1339                 SK_PROM_MODE_NONE);
1340
1341         if (pAC->MaxPorts == 1) {
1342                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1343                 /* disable interrupts */
1344                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1345                 EvPara.Para32[0] = pNet->NetNr;
1346                 EvPara.Para32[1] = -1;
1347                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1348                 SkEventDispatcher(pAC, pAC->IoBase);
1349                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1350                 /* stop the hardware */
1351                 SkGeDeInit(pAC, pAC->IoBase);
1352                 pAC->BoardLevel = SK_INIT_DATA;
1353                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1354         } else {
1355
1356                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1357                 EvPara.Para32[0] = pNet->NetNr;
1358                 EvPara.Para32[1] = -1;
1359                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1360                 SkPnmiEvent(pAC, pAC->IoBase, SK_PNMI_EVT_XMAC_RESET, EvPara);
1361                 SkEventDispatcher(pAC, pAC->IoBase);
1362                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1363
1364                 /* Stop port */
1365                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1366                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1367                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1368                         SK_STOP_ALL, SK_HARD_RST);
1369                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1370                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1371         }
1372
1373         if (pAC->RlmtNets == 1) {
1374                 /* clear all descriptor rings */
1375                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1376                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1377                         ClearRxRing(pAC, &pAC->RxPort[i]);
1378                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1379                 }
1380         } else {
1381                 /* clear port descriptor rings */
1382                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1383                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1384                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1385         }
1386
1387         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1388                 ("SkGeClose: done "));
1389
1390         SK_MEMSET(&(pAC->PnmiBackup), 0, sizeof(SK_PNMI_STRUCT_DATA));
1391         SK_MEMCPY(&(pAC->PnmiBackup), &(pAC->PnmiStruct),
1392                         sizeof(SK_PNMI_STRUCT_DATA));
1393
1394         pAC->MaxPorts--;
1395
1396         return (0);
1397 } /* SkGeClose */
1398
1399
1400 /*****************************************************************************
1401  *
1402  *      SkGeXmit - Linux frame transmit function
1403  *
1404  * Description:
1405  *      The system calls this function to send frames onto the wire.
1406  *      It puts the frame in the tx descriptor ring. If the ring is
1407  *      full then, the 'tbusy' flag is set.
1408  *
1409  * Returns:
1410  *      0, if everything is ok
1411  *      !=0, on error
1412  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
1413  *      allocated skb's) !!!
1414  */
1415 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
1416 {
1417 DEV_NET         *pNet;
1418 SK_AC           *pAC;
1419 int                     Rc;     /* return code of XmitFrame */
1420
1421         pNet = netdev_priv(dev);
1422         pAC = pNet->pAC;
1423
1424         if ((!skb_shinfo(skb)->nr_frags) ||
1425                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
1426                 /* Don't activate scatter-gather and hardware checksum */
1427
1428                 if (pAC->RlmtNets == 2)
1429                         Rc = XmitFrame(
1430                                 pAC,
1431                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1432                                 skb);
1433                 else
1434                         Rc = XmitFrame(
1435                                 pAC,
1436                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1437                                 skb);
1438         } else {
1439                 /* scatter-gather and hardware TCP checksumming anabled*/
1440                 if (pAC->RlmtNets == 2)
1441                         Rc = XmitFrameSG(
1442                                 pAC,
1443                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1444                                 skb);
1445                 else
1446                         Rc = XmitFrameSG(
1447                                 pAC,
1448                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1449                                 skb);
1450         }
1451
1452         /* Transmitter out of resources? */
1453         if (Rc <= 0) {
1454                 netif_stop_queue(dev);
1455         }
1456
1457         /* If not taken, give buffer ownership back to the
1458          * queueing layer.
1459          */
1460         if (Rc < 0)
1461                 return (1);
1462
1463         dev->trans_start = jiffies;
1464         return (0);
1465 } /* SkGeXmit */
1466
1467
1468 /*****************************************************************************
1469  *
1470  *      XmitFrame - fill one socket buffer into the transmit ring
1471  *
1472  * Description:
1473  *      This function puts a message into the transmit descriptor ring
1474  *      if there is a descriptors left.
1475  *      Linux skb's consist of only one continuous buffer.
1476  *      The first step locks the ring. It is held locked
1477  *      all time to avoid problems with SWITCH_../PORT_RESET.
1478  *      Then the descriptoris allocated.
1479  *      The second part is linking the buffer to the descriptor.
1480  *      At the very last, the Control field of the descriptor
1481  *      is made valid for the BMU and a start TX command is given
1482  *      if necessary.
1483  *
1484  * Returns:
1485  *      > 0 - on succes: the number of bytes in the message
1486  *      = 0 - on resource shortage: this frame sent or dropped, now
1487  *              the ring is full ( -> set tbusy)
1488  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1489  */
1490 static int XmitFrame(
1491 SK_AC           *pAC,           /* pointer to adapter context           */
1492 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1493 struct sk_buff  *pMessage)      /* pointer to send-message              */
1494 {
1495         TXD             *pTxd;          /* the rxd to fill */
1496         TXD             *pOldTxd;
1497         unsigned long    Flags;
1498         SK_U64           PhysAddr;
1499         int              BytesSend = pMessage->len;
1500
1501         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
1502
1503         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1504 #ifndef USE_TX_COMPLETE
1505         FreeTxDescriptors(pAC, pTxPort);
1506 #endif
1507         if (pTxPort->TxdRingFree == 0) {
1508                 /*
1509                 ** no enough free descriptors in ring at the moment.
1510                 ** Maybe free'ing some old one help?
1511                 */
1512                 FreeTxDescriptors(pAC, pTxPort);
1513                 if (pTxPort->TxdRingFree == 0) {
1514                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1515                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1516                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1517                                 SK_DBGCAT_DRV_TX_PROGRESS,
1518                                 ("XmitFrame failed\n"));
1519                         /*
1520                         ** the desired message can not be sent
1521                         ** Because tbusy seems to be set, the message
1522                         ** should not be freed here. It will be used
1523                         ** by the scheduler of the ethernet handler
1524                         */
1525                         return (-1);
1526                 }
1527         }
1528
1529         /*
1530         ** If the passed socket buffer is of smaller MTU-size than 60,
1531         ** copy everything into new buffer and fill all bytes between
1532         ** the original packet end and the new packet end of 60 with 0x00.
1533         ** This is to resolve faulty padding by the HW with 0xaa bytes.
1534         */
1535         if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
1536                 if ((pMessage = skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) == NULL) {
1537                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1538                         return 0;
1539                 }
1540                 pMessage->len = C_LEN_ETHERNET_MINSIZE;
1541         }
1542
1543         /*
1544         ** advance head counter behind descriptor needed for this frame,
1545         ** so that needed descriptor is reserved from that on. The next
1546         ** action will be to add the passed buffer to the TX-descriptor
1547         */
1548         pTxd = pTxPort->pTxdRingHead;
1549         pTxPort->pTxdRingHead = pTxd->pNextTxd;
1550         pTxPort->TxdRingFree--;
1551
1552 #ifdef SK_DUMP_TX
1553         DumpMsg(pMessage, "XmitFrame");
1554 #endif
1555
1556         /*
1557         ** First step is to map the data to be sent via the adapter onto
1558         ** the DMA memory. Kernel 2.2 uses virt_to_bus(), but kernels 2.4
1559         ** and 2.6 need to use pci_map_page() for that mapping.
1560         */
1561         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1562                                         virt_to_page(pMessage->data),
1563                                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1564                                         pMessage->len,
1565                                         PCI_DMA_TODEVICE);
1566         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1567         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1568         pTxd->pMBuf     = pMessage;
1569
1570         if (pMessage->ip_summed == CHECKSUM_HW) {
1571                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1572                 u16 offset = hdrlen + pMessage->csum;
1573
1574                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1575                         (pAC->GIni.GIChipRev == 0) &&
1576                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1577                         pTxd->TBControl = BMU_TCP_CHECK;
1578                 } else {
1579                         pTxd->TBControl = BMU_UDP_CHECK;
1580                 }
1581
1582                 pTxd->TcpSumOfs = 0;
1583                 pTxd->TcpSumSt  = hdrlen;
1584                 pTxd->TcpSumWr  = offset;
1585
1586                 pTxd->TBControl |= BMU_OWN | BMU_STF |
1587                                    BMU_SW  | BMU_EOF |
1588 #ifdef USE_TX_COMPLETE
1589                                    BMU_IRQ_EOF |
1590 #endif
1591                                    pMessage->len;
1592         } else {
1593                 pTxd->TBControl = BMU_OWN | BMU_STF | BMU_CHECK |
1594                                   BMU_SW  | BMU_EOF |
1595 #ifdef USE_TX_COMPLETE
1596                                    BMU_IRQ_EOF |
1597 #endif
1598                         pMessage->len;
1599         }
1600
1601         /*
1602         ** If previous descriptor already done, give TX start cmd
1603         */
1604         pOldTxd = xchg(&pTxPort->pTxdRingPrev, pTxd);
1605         if ((pOldTxd->TBControl & BMU_OWN) == 0) {
1606                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1607         }
1608
1609         /*
1610         ** after releasing the lock, the skb may immediately be free'd
1611         */
1612         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1613         if (pTxPort->TxdRingFree != 0) {
1614                 return (BytesSend);
1615         } else {
1616                 return (0);
1617         }
1618
1619 } /* XmitFrame */
1620
1621 /*****************************************************************************
1622  *
1623  *      XmitFrameSG - fill one socket buffer into the transmit ring
1624  *                (use SG and TCP/UDP hardware checksumming)
1625  *
1626  * Description:
1627  *      This function puts a message into the transmit descriptor ring
1628  *      if there is a descriptors left.
1629  *
1630  * Returns:
1631  *      > 0 - on succes: the number of bytes in the message
1632  *      = 0 - on resource shortage: this frame sent or dropped, now
1633  *              the ring is full ( -> set tbusy)
1634  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1635  */
1636 static int XmitFrameSG(
1637 SK_AC           *pAC,           /* pointer to adapter context           */
1638 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1639 struct sk_buff  *pMessage)      /* pointer to send-message              */
1640 {
1641
1642         TXD             *pTxd;
1643         TXD             *pTxdFst;
1644         TXD             *pTxdLst;
1645         int              CurrFrag;
1646         int              BytesSend;
1647         skb_frag_t      *sk_frag;
1648         SK_U64           PhysAddr;
1649         unsigned long    Flags;
1650         SK_U32           Control;
1651
1652         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1653 #ifndef USE_TX_COMPLETE
1654         FreeTxDescriptors(pAC, pTxPort);
1655 #endif
1656         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
1657                 FreeTxDescriptors(pAC, pTxPort);
1658                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
1659                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1660                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1661                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1662                                 SK_DBGCAT_DRV_TX_PROGRESS,
1663                                 ("XmitFrameSG failed - Ring full\n"));
1664                                 /* this message can not be sent now */
1665                         return(-1);
1666                 }
1667         }
1668
1669         pTxd      = pTxPort->pTxdRingHead;
1670         pTxdFst   = pTxd;
1671         pTxdLst   = pTxd;
1672         BytesSend = 0;
1673
1674         /*
1675         ** Map the first fragment (header) into the DMA-space
1676         */
1677         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1678                         virt_to_page(pMessage->data),
1679                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1680                         skb_headlen(pMessage),
1681                         PCI_DMA_TODEVICE);
1682
1683         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1684         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1685
1686         /*
1687         ** Does the HW need to evaluate checksum for TCP or UDP packets?
1688         */
1689         if (pMessage->ip_summed == CHECKSUM_HW) {
1690                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1691                 u16 offset = hdrlen + pMessage->csum;
1692
1693                 Control = BMU_STFWD;
1694
1695                 /*
1696                 ** We have to use the opcode for tcp here,  because the
1697                 ** opcode for udp is not working in the hardware yet
1698                 ** (Revision 2.0)
1699                 */
1700                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1701                         (pAC->GIni.GIChipRev == 0) &&
1702                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1703                         Control |= BMU_TCP_CHECK;
1704                 } else {
1705                         Control |= BMU_UDP_CHECK;
1706                 }
1707
1708                 pTxd->TcpSumOfs = 0;
1709                 pTxd->TcpSumSt  = hdrlen;
1710                 pTxd->TcpSumWr  = offset;
1711         } else
1712                 Control = BMU_CHECK | BMU_SW;
1713
1714         pTxd->TBControl = BMU_STF | Control | skb_headlen(pMessage);
1715
1716         pTxd = pTxd->pNextTxd;
1717         pTxPort->TxdRingFree--;
1718         BytesSend += skb_headlen(pMessage);
1719
1720         /*
1721         ** Browse over all SG fragments and map each of them into the DMA space
1722         */
1723         for (CurrFrag = 0; CurrFrag < skb_shinfo(pMessage)->nr_frags; CurrFrag++) {
1724                 sk_frag = &skb_shinfo(pMessage)->frags[CurrFrag];
1725                 /*
1726                 ** we already have the proper value in entry
1727                 */
1728                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1729                                                  sk_frag->page,
1730                                                  sk_frag->page_offset,
1731                                                  sk_frag->size,
1732                                                  PCI_DMA_TODEVICE);
1733
1734                 pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1735                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1736                 pTxd->pMBuf     = pMessage;
1737
1738                 pTxd->TBControl = Control | BMU_OWN | sk_frag->size;;
1739
1740                 /*
1741                 ** Do we have the last fragment?
1742                 */
1743                 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags )  {
1744 #ifdef USE_TX_COMPLETE
1745                         pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF;
1746 #else
1747                         pTxd->TBControl |= BMU_EOF;
1748 #endif
1749                         pTxdFst->TBControl |= BMU_OWN | BMU_SW;
1750                 }
1751                 pTxdLst = pTxd;
1752                 pTxd    = pTxd->pNextTxd;
1753                 pTxPort->TxdRingFree--;
1754                 BytesSend += sk_frag->size;
1755         }
1756
1757         /*
1758         ** If previous descriptor already done, give TX start cmd
1759         */
1760         if ((pTxPort->pTxdRingPrev->TBControl & BMU_OWN) == 0) {
1761                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1762         }
1763
1764         pTxPort->pTxdRingPrev = pTxdLst;
1765         pTxPort->pTxdRingHead = pTxd;
1766
1767         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1768
1769         if (pTxPort->TxdRingFree > 0) {
1770                 return (BytesSend);
1771         } else {
1772                 return (0);
1773         }
1774 }
1775
1776 /*****************************************************************************
1777  *
1778  *      FreeTxDescriptors - release descriptors from the descriptor ring
1779  *
1780  * Description:
1781  *      This function releases descriptors from a transmit ring if they
1782  *      have been sent by the BMU.
1783  *      If a descriptors is sent, it can be freed and the message can
1784  *      be freed, too.
1785  *      The SOFTWARE controllable bit is used to prevent running around a
1786  *      completely free ring for ever. If this bit is no set in the
1787  *      frame (by XmitFrame), this frame has never been sent or is
1788  *      already freed.
1789  *      The Tx descriptor ring lock must be held while calling this function !!!
1790  *
1791  * Returns:
1792  *      none
1793  */
1794 static void FreeTxDescriptors(
1795 SK_AC   *pAC,           /* pointer to the adapter context */
1796 TX_PORT *pTxPort)       /* pointer to destination port structure */
1797 {
1798 TXD     *pTxd;          /* pointer to the checked descriptor */
1799 TXD     *pNewTail;      /* pointer to 'end' of the ring */
1800 SK_U32  Control;        /* TBControl field of descriptor */
1801 SK_U64  PhysAddr;       /* address of DMA mapping */
1802
1803         pNewTail = pTxPort->pTxdRingTail;
1804         pTxd     = pNewTail;
1805         /*
1806         ** loop forever; exits if BMU_SW bit not set in start frame
1807         ** or BMU_OWN bit set in any frame
1808         */
1809         while (1) {
1810                 Control = pTxd->TBControl;
1811                 if ((Control & BMU_SW) == 0) {
1812                         /*
1813                         ** software controllable bit is set in first
1814                         ** fragment when given to BMU. Not set means that
1815                         ** this fragment was never sent or is already
1816                         ** freed ( -> ring completely free now).
1817                         */
1818                         pTxPort->pTxdRingTail = pTxd;
1819                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1820                         return;
1821                 }
1822                 if (Control & BMU_OWN) {
1823                         pTxPort->pTxdRingTail = pTxd;
1824                         if (pTxPort->TxdRingFree > 0) {
1825                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1826                         }
1827                         return;
1828                 }
1829
1830                 /*
1831                 ** release the DMA mapping, because until not unmapped
1832                 ** this buffer is considered being under control of the
1833                 ** adapter card!
1834                 */
1835                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
1836                 PhysAddr |= (SK_U64) pTxd->VDataLow;
1837                 pci_unmap_page(pAC->PciDev, PhysAddr,
1838                                  pTxd->pMBuf->len,
1839                                  PCI_DMA_TODEVICE);
1840
1841                 if (Control & BMU_EOF)
1842                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
1843
1844                 pTxPort->TxdRingFree++;
1845                 pTxd->TBControl &= ~BMU_SW;
1846                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
1847         } /* while(forever) */
1848 } /* FreeTxDescriptors */
1849
1850 /*****************************************************************************
1851  *
1852  *      FillRxRing - fill the receive ring with valid descriptors
1853  *
1854  * Description:
1855  *      This function fills the receive ring descriptors with data
1856  *      segments and makes them valid for the BMU.
1857  *      The active ring is filled completely, if possible.
1858  *      The non-active ring is filled only partial to save memory.
1859  *
1860  * Description of rx ring structure:
1861  *      head - points to the descriptor which will be used next by the BMU
1862  *      tail - points to the next descriptor to give to the BMU
1863  *
1864  * Returns:     N/A
1865  */
1866 static void FillRxRing(
1867 SK_AC           *pAC,           /* pointer to the adapter context */
1868 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
1869                                    should be filled */
1870 {
1871 unsigned long   Flags;
1872
1873         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
1874         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
1875                 if(!FillRxDescriptor(pAC, pRxPort))
1876                         break;
1877         }
1878         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
1879 } /* FillRxRing */
1880
1881
1882 /*****************************************************************************
1883  *
1884  *      FillRxDescriptor - fill one buffer into the receive ring
1885  *
1886  * Description:
1887  *      The function allocates a new receive buffer and
1888  *      puts it into the next descriptor.
1889  *
1890  * Returns:
1891  *      SK_TRUE - a buffer was added to the ring
1892  *      SK_FALSE - a buffer could not be added
1893  */
1894 static SK_BOOL FillRxDescriptor(
1895 SK_AC           *pAC,           /* pointer to the adapter context struct */
1896 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
1897 {
1898 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
1899 RXD             *pRxd;          /* the rxd to fill */
1900 SK_U16          Length;         /* data fragment length */
1901 SK_U64          PhysAddr;       /* physical address of a rx buffer */
1902
1903         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
1904         if (pMsgBlock == NULL) {
1905                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1906                         SK_DBGCAT_DRV_ENTRY,
1907                         ("%s: Allocation of rx buffer failed !\n",
1908                         pAC->dev[pRxPort->PortIndex]->name));
1909                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
1910                 return(SK_FALSE);
1911         }
1912         skb_reserve(pMsgBlock, 2); /* to align IP frames */
1913         /* skb allocated ok, so add buffer */
1914         pRxd = pRxPort->pRxdRingTail;
1915         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1916         pRxPort->RxdRingFree--;
1917         Length = pAC->RxBufSize;
1918         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1919                 virt_to_page(pMsgBlock->data),
1920                 ((unsigned long) pMsgBlock->data &
1921                 ~PAGE_MASK),
1922                 pAC->RxBufSize - 2,
1923                 PCI_DMA_FROMDEVICE);
1924
1925         pRxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1926         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1927         pRxd->pMBuf     = pMsgBlock;
1928         pRxd->RBControl = BMU_OWN       |
1929                           BMU_STF       |
1930                           BMU_IRQ_EOF   |
1931                           BMU_TCP_CHECK |
1932                           Length;
1933         return (SK_TRUE);
1934
1935 } /* FillRxDescriptor */
1936
1937
1938 /*****************************************************************************
1939  *
1940  *      ReQueueRxBuffer - fill one buffer back into the receive ring
1941  *
1942  * Description:
1943  *      Fill a given buffer back into the rx ring. The buffer
1944  *      has been previously allocated and aligned, and its phys.
1945  *      address calculated, so this is no more necessary.
1946  *
1947  * Returns: N/A
1948  */
1949 static void ReQueueRxBuffer(
1950 SK_AC           *pAC,           /* pointer to the adapter context struct */
1951 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
1952 struct sk_buff  *pMsg,          /* pointer to the buffer */
1953 SK_U32          PhysHigh,       /* phys address high dword */
1954 SK_U32          PhysLow)        /* phys address low dword */
1955 {
1956 RXD             *pRxd;          /* the rxd to fill */
1957 SK_U16          Length;         /* data fragment length */
1958
1959         pRxd = pRxPort->pRxdRingTail;
1960         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1961         pRxPort->RxdRingFree--;
1962         Length = pAC->RxBufSize;
1963
1964         pRxd->VDataLow  = PhysLow;
1965         pRxd->VDataHigh = PhysHigh;
1966         pRxd->pMBuf     = pMsg;
1967         pRxd->RBControl = BMU_OWN       |
1968                           BMU_STF       |
1969                           BMU_IRQ_EOF   |
1970                           BMU_TCP_CHECK |
1971                           Length;
1972         return;
1973 } /* ReQueueRxBuffer */
1974
1975 /*****************************************************************************
1976  *
1977  *      ReceiveIrq - handle a receive IRQ
1978  *
1979  * Description:
1980  *      This function is called when a receive IRQ is set.
1981  *      It walks the receive descriptor ring and sends up all
1982  *      frames that are complete.
1983  *
1984  * Returns:     N/A
1985  */
1986 static void ReceiveIrq(
1987         SK_AC           *pAC,                   /* pointer to adapter context */
1988         RX_PORT         *pRxPort,               /* pointer to receive port struct */
1989         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
1990 {
1991 RXD                             *pRxd;                  /* pointer to receive descriptors */
1992 SK_U32                  Control;                /* control field of descriptor */
1993 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
1994 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
1995 int                             FrameLength;    /* total length of received frame */
1996 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
1997 SK_EVPARA               EvPara;                 /* an event parameter union */
1998 unsigned long   Flags;                  /* for spin lock */
1999 int                             PortIndex = pRxPort->PortIndex;
2000 unsigned int    Offset;
2001 unsigned int    NumBytes;
2002 unsigned int    ForRlmt;
2003 SK_BOOL                 IsBc;
2004 SK_BOOL                 IsMc;
2005 SK_BOOL  IsBadFrame;                    /* Bad frame */
2006
2007 SK_U32                  FrameStat;
2008 SK_U64                  PhysAddr;
2009
2010 rx_start:
2011         /* do forever; exit if BMU_OWN found */
2012         for ( pRxd = pRxPort->pRxdRingHead ;
2013                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2014                   pRxd = pRxd->pNextRxd,
2015                   pRxPort->pRxdRingHead = pRxd,
2016                   pRxPort->RxdRingFree ++) {
2017
2018                 /*
2019                  * For a better understanding of this loop
2020                  * Go through every descriptor beginning at the head
2021                  * Please note: the ring might be completely received so the OWN bit
2022                  * set is not a good crirteria to leave that loop.
2023                  * Therefore the RingFree counter is used.
2024                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2025                  * to be checked next.
2026                  */
2027
2028                 Control = pRxd->RBControl;
2029
2030                 /* check if this descriptor is ready */
2031                 if ((Control & BMU_OWN) != 0) {
2032                         /* this descriptor is not yet ready */
2033                         /* This is the usual end of the loop */
2034                         /* We don't need to start the ring again */
2035                         FillRxRing(pAC, pRxPort);
2036                         return;
2037                 }
2038                 pAC->DynIrqModInfo.NbrProcessedDescr++;
2039
2040                 /* get length of frame and check it */
2041                 FrameLength = Control & BMU_BBC;
2042                 if (FrameLength > pAC->RxBufSize) {
2043                         goto rx_failed;
2044                 }
2045
2046                 /* check for STF and EOF */
2047                 if ((Control & (BMU_STF | BMU_EOF)) != (BMU_STF | BMU_EOF)) {
2048                         goto rx_failed;
2049                 }
2050
2051                 /* here we have a complete frame in the ring */
2052                 pMsg = pRxd->pMBuf;
2053
2054                 FrameStat = pRxd->FrameStat;
2055
2056                 /* check for frame length mismatch */
2057 #define XMR_FS_LEN_SHIFT        18
2058 #define GMR_FS_LEN_SHIFT        16
2059                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2060                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2061                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2062                                         SK_DBGCAT_DRV_RX_PROGRESS,
2063                                         ("skge: Frame length mismatch (%u/%u).\n",
2064                                         FrameLength,
2065                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2066                                 goto rx_failed;
2067                         }
2068                 }
2069                 else {
2070                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2071                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2072                                         SK_DBGCAT_DRV_RX_PROGRESS,
2073                                         ("skge: Frame length mismatch (%u/%u).\n",
2074                                         FrameLength,
2075                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2076                                 goto rx_failed;
2077                         }
2078                 }
2079
2080                 /* Set Rx Status */
2081                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2082                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2083                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2084                         IsBadFrame = (FrameStat &
2085                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2086                 } else {
2087                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2088                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2089                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2090                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2091                 }
2092
2093                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2094                         ("Received frame of length %d on port %d\n",
2095                         FrameLength, PortIndex));
2096                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2097                         ("Number of free rx descriptors: %d\n",
2098                         pRxPort->RxdRingFree));
2099 /* DumpMsg(pMsg, "Rx"); */
2100
2101                 if ((Control & BMU_STAT_VAL) != BMU_STAT_VAL || (IsBadFrame)) {
2102 #if 0
2103                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2104 #endif
2105                         /* there is a receive error in this frame */
2106                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2107                                 SK_DBGCAT_DRV_RX_PROGRESS,
2108                                 ("skge: Error in received frame, dropped!\n"
2109                                 "Control: %x\nRxStat: %x\n",
2110                                 Control, FrameStat));
2111
2112                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2113                                 pRxd->VDataHigh, pRxd->VDataLow);
2114
2115                         continue;
2116                 }
2117
2118                 /*
2119                  * if short frame then copy data to reduce memory waste
2120                  */
2121                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2122                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2123                         /*
2124                          * Short frame detected and allocation successfull
2125                          */
2126                         /* use new skb and copy data */
2127                         skb_reserve(pNewMsg, 2);
2128                         skb_put(pNewMsg, FrameLength);
2129                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2130                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2131
2132                         pci_dma_sync_single_for_cpu(pAC->PciDev,
2133                                                     (dma_addr_t) PhysAddr,
2134                                                     FrameLength,
2135                                                     PCI_DMA_FROMDEVICE);
2136                         memcpy(pNewMsg->data, pMsg, FrameLength);
2137
2138                         pci_dma_sync_single_for_device(pAC->PciDev,
2139                                                        (dma_addr_t) PhysAddr,
2140                                                        FrameLength,
2141                                                        PCI_DMA_FROMDEVICE);
2142                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2143                                 pRxd->VDataHigh, pRxd->VDataLow);
2144
2145                         pMsg = pNewMsg;
2146
2147                 }
2148                 else {
2149                         /*
2150                          * if large frame, or SKB allocation failed, pass
2151                          * the SKB directly to the networking
2152                          */
2153
2154                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2155                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2156
2157                         /* release the DMA mapping */
2158                         pci_unmap_single(pAC->PciDev,
2159                                          PhysAddr,
2160                                          pAC->RxBufSize - 2,
2161                                          PCI_DMA_FROMDEVICE);
2162
2163                         /* set length in message */
2164                         skb_put(pMsg, FrameLength);
2165                 } /* frame > SK_COPY_TRESHOLD */
2166
2167 #ifdef USE_SK_RX_CHECKSUM
2168                 pMsg->csum = pRxd->TcpSums & 0xffff;
2169                 pMsg->ip_summed = CHECKSUM_HW;
2170 #else
2171                 pMsg->ip_summed = CHECKSUM_NONE;
2172 #endif
2173
2174                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2175                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2176 #if 0
2177                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2178 #endif
2179                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2180                         IsBc, &Offset, &NumBytes);
2181                 if (NumBytes != 0) {
2182 #if 0
2183                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2184 #endif
2185                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2186                                 &pMsg->data[Offset],
2187                                 IsBc, IsMc, &ForRlmt);
2188                 }
2189                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2190                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2191                         /* send up only frames from active port */
2192                         if ((PortIndex == pAC->ActivePort) ||
2193                                 (pAC->RlmtNets == 2)) {
2194                                 /* frame for upper layer */
2195                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2196 #ifdef xDEBUG
2197                                 DumpMsg(pMsg, "Rx");
2198 #endif
2199                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2200                                         FrameLength, pRxPort->PortIndex);
2201
2202                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2203                                 pMsg->protocol = eth_type_trans(pMsg,
2204                                         pAC->dev[pRxPort->PortIndex]);
2205                                 netif_rx(pMsg);
2206                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2207                         }
2208                         else {
2209                                 /* drop frame */
2210                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2211                                         SK_DBGCAT_DRV_RX_PROGRESS,
2212                                         ("D"));
2213                                 DEV_KFREE_SKB(pMsg);
2214                         }
2215
2216                 } /* if not for rlmt */
2217                 else {
2218                         /* packet for rlmt */
2219                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2220                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2221                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2222                                 pAC->IoBase, FrameLength);
2223                         if (pRlmtMbuf != NULL) {
2224                                 pRlmtMbuf->pNext = NULL;
2225                                 pRlmtMbuf->Length = FrameLength;
2226                                 pRlmtMbuf->PortIdx = PortIndex;
2227                                 EvPara.pParaPtr = pRlmtMbuf;
2228                                 memcpy((char*)(pRlmtMbuf->pData),
2229                                            (char*)(pMsg->data),
2230                                            FrameLength);
2231
2232                                 /* SlowPathLock needed? */
2233                                 if (SlowPathLock == SK_TRUE) {
2234                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2235                                         SkEventQueue(pAC, SKGE_RLMT,
2236                                                 SK_RLMT_PACKET_RECEIVED,
2237                                                 EvPara);
2238                                         pAC->CheckQueue = SK_TRUE;
2239                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2240                                 } else {
2241                                         SkEventQueue(pAC, SKGE_RLMT,
2242                                                 SK_RLMT_PACKET_RECEIVED,
2243                                                 EvPara);
2244                                         pAC->CheckQueue = SK_TRUE;
2245                                 }
2246
2247                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2248                                         SK_DBGCAT_DRV_RX_PROGRESS,
2249                                         ("Q"));
2250                         }
2251                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2252                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2253                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2254                                 SK_RLMT_RX_PROTOCOL) {
2255                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2256                                 pMsg->protocol = eth_type_trans(pMsg,
2257                                         pAC->dev[pRxPort->PortIndex]);
2258                                 netif_rx(pMsg);
2259                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2260                         }
2261                         else {
2262                                 DEV_KFREE_SKB(pMsg);
2263                         }
2264
2265                 } /* if packet for rlmt */
2266         } /* for ... scanning the RXD ring */
2267
2268         /* RXD ring is empty -> fill and restart */
2269         FillRxRing(pAC, pRxPort);
2270         /* do not start if called from Close */
2271         if (pAC->BoardLevel > SK_INIT_DATA) {
2272                 ClearAndStartRx(pAC, PortIndex);
2273         }
2274         return;
2275
2276 rx_failed:
2277         /* remove error frame */
2278         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2279                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2280
2281         /* release the DMA mapping */
2282
2283         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2284         PhysAddr |= (SK_U64) pRxd->VDataLow;
2285         pci_unmap_page(pAC->PciDev,
2286                          PhysAddr,
2287                          pAC->RxBufSize - 2,
2288                          PCI_DMA_FROMDEVICE);
2289         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2290         pRxd->pMBuf = NULL;
2291         pRxPort->RxdRingFree++;
2292         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2293         goto rx_start;
2294
2295 } /* ReceiveIrq */
2296
2297
2298 /*****************************************************************************
2299  *
2300  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2301  *
2302  * Description:
2303  *      This function sends a start command and a clear interrupt
2304  *      command for one receive queue to the BMU.
2305  *
2306  * Returns: N/A
2307  *      none
2308  */
2309 static void ClearAndStartRx(
2310 SK_AC   *pAC,           /* pointer to the adapter context */
2311 int     PortIndex)      /* index of the receive port (XMAC) */
2312 {
2313         SK_OUT8(pAC->IoBase,
2314                 RxQueueAddr[PortIndex]+Q_CSR,
2315                 CSR_START | CSR_IRQ_CL_F);
2316 } /* ClearAndStartRx */
2317
2318
2319 /*****************************************************************************
2320  *
2321  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2322  *
2323  * Description:
2324  *      This function sends a clear tx IRQ command for one
2325  *      transmit queue to the BMU.
2326  *
2327  * Returns: N/A
2328  */
2329 static void ClearTxIrq(
2330 SK_AC   *pAC,           /* pointer to the adapter context */
2331 int     PortIndex,      /* index of the transmit port (XMAC) */
2332 int     Prio)           /* priority or normal queue */
2333 {
2334         SK_OUT8(pAC->IoBase,
2335                 TxQueueAddr[PortIndex][Prio]+Q_CSR,
2336                 CSR_IRQ_CL_F);
2337 } /* ClearTxIrq */
2338
2339
2340 /*****************************************************************************
2341  *
2342  *      ClearRxRing - remove all buffers from the receive ring
2343  *
2344  * Description:
2345  *      This function removes all receive buffers from the ring.
2346  *      The receive BMU must be stopped before calling this function.
2347  *
2348  * Returns: N/A
2349  */
2350 static void ClearRxRing(
2351 SK_AC   *pAC,           /* pointer to adapter context */
2352 RX_PORT *pRxPort)       /* pointer to rx port struct */
2353 {
2354 RXD             *pRxd;  /* pointer to the current descriptor */
2355 unsigned long   Flags;
2356 SK_U64          PhysAddr;
2357
2358         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2359                 return;
2360         }
2361         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2362         pRxd = pRxPort->pRxdRingHead;
2363         do {
2364                 if (pRxd->pMBuf != NULL) {
2365
2366                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2367                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2368                         pci_unmap_page(pAC->PciDev,
2369                                          PhysAddr,
2370                                          pAC->RxBufSize - 2,
2371                                          PCI_DMA_FROMDEVICE);
2372                         DEV_KFREE_SKB(pRxd->pMBuf);
2373                         pRxd->pMBuf = NULL;
2374                 }
2375                 pRxd->RBControl &= BMU_OWN;
2376                 pRxd = pRxd->pNextRxd;
2377                 pRxPort->RxdRingFree++;
2378         } while (pRxd != pRxPort->pRxdRingTail);
2379         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
2380         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2381 } /* ClearRxRing */
2382
2383 /*****************************************************************************
2384  *
2385  *      ClearTxRing - remove all buffers from the transmit ring
2386  *
2387  * Description:
2388  *      This function removes all transmit buffers from the ring.
2389  *      The transmit BMU must be stopped before calling this function
2390  *      and transmitting at the upper level must be disabled.
2391  *      The BMU own bit of all descriptors is cleared, the rest is
2392  *      done by calling FreeTxDescriptors.
2393  *
2394  * Returns: N/A
2395  */
2396 static void ClearTxRing(
2397 SK_AC   *pAC,           /* pointer to adapter context */
2398 TX_PORT *pTxPort)       /* pointer to tx prt struct */
2399 {
2400 TXD             *pTxd;          /* pointer to the current descriptor */
2401 int             i;
2402 unsigned long   Flags;
2403
2404         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2405         pTxd = pTxPort->pTxdRingHead;
2406         for (i=0; i<pAC->TxDescrPerRing; i++) {
2407                 pTxd->TBControl &= ~BMU_OWN;
2408                 pTxd = pTxd->pNextTxd;
2409         }
2410         FreeTxDescriptors(pAC, pTxPort);
2411         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2412 } /* ClearTxRing */
2413
2414 /*****************************************************************************
2415  *
2416  *      SkGeSetMacAddr - Set the hardware MAC address
2417  *
2418  * Description:
2419  *      This function sets the MAC address used by the adapter.
2420  *
2421  * Returns:
2422  *      0, if everything is ok
2423  *      !=0, on error
2424  */
2425 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
2426 {
2427
2428 DEV_NET *pNet = netdev_priv(dev);
2429 SK_AC   *pAC = pNet->pAC;
2430
2431 struct sockaddr *addr = p;
2432 unsigned long   Flags;
2433
2434         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2435                 ("SkGeSetMacAddr starts now...\n"));
2436         if(netif_running(dev))
2437                 return -EBUSY;
2438
2439         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
2440
2441         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2442
2443         if (pAC->RlmtNets == 2)
2444                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
2445                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2446         else
2447                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
2448                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2449
2450
2451
2452         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2453         return 0;
2454 } /* SkGeSetMacAddr */
2455
2456
2457 /*****************************************************************************
2458  *
2459  *      SkGeSetRxMode - set receive mode
2460  *
2461  * Description:
2462  *      This function sets the receive mode of an adapter. The adapter
2463  *      supports promiscuous mode, allmulticast mode and a number of
2464  *      multicast addresses. If more multicast addresses the available
2465  *      are selected, a hash function in the hardware is used.
2466  *
2467  * Returns:
2468  *      0, if everything is ok
2469  *      !=0, on error
2470  */
2471 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
2472 {
2473
2474 DEV_NET         *pNet;
2475 SK_AC           *pAC;
2476
2477 struct dev_mc_list      *pMcList;
2478 int                     i;
2479 int                     PortIdx;
2480 unsigned long           Flags;
2481
2482         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2483                 ("SkGeSetRxMode starts now... "));
2484
2485         pNet = netdev_priv(dev);
2486         pAC = pNet->pAC;
2487         if (pAC->RlmtNets == 1)
2488                 PortIdx = pAC->ActivePort;
2489         else
2490                 PortIdx = pNet->NetNr;
2491
2492         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2493         if (dev->flags & IFF_PROMISC) {
2494                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2495                         ("PROMISCUOUS mode\n"));
2496                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2497                         SK_PROM_MODE_LLC);
2498         } else if (dev->flags & IFF_ALLMULTI) {
2499                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2500                         ("ALLMULTI mode\n"));
2501                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2502                         SK_PROM_MODE_ALL_MC);
2503         } else {
2504                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2505                         SK_PROM_MODE_NONE);
2506                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
2507
2508                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2509                         ("Number of MC entries: %d ", dev->mc_count));
2510
2511                 pMcList = dev->mc_list;
2512                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
2513                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
2514                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
2515                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
2516                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
2517                                 pMcList->dmi_addr[0],
2518                                 pMcList->dmi_addr[1],
2519                                 pMcList->dmi_addr[2],
2520                                 pMcList->dmi_addr[3],
2521                                 pMcList->dmi_addr[4],
2522                                 pMcList->dmi_addr[5]));
2523                 }
2524                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
2525         }
2526         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2527
2528         return;
2529 } /* SkGeSetRxMode */
2530
2531
2532 /*****************************************************************************
2533  *
2534  *      SkGeChangeMtu - set the MTU to another value
2535  *
2536  * Description:
2537  *      This function sets is called whenever the MTU size is changed
2538  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
2539  *      ethernet MTU size, long frame support is activated.
2540  *
2541  * Returns:
2542  *      0, if everything is ok
2543  *      !=0, on error
2544  */
2545 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
2546 {
2547 DEV_NET         *pNet;
2548 struct net_device *pOtherDev;
2549 SK_AC           *pAC;
2550 unsigned long   Flags;
2551 int             i;
2552 SK_EVPARA       EvPara;
2553
2554         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2555                 ("SkGeChangeMtu starts now...\n"));
2556
2557         pNet = netdev_priv(dev);
2558         pAC  = pNet->pAC;
2559
2560         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
2561                 return -EINVAL;
2562         }
2563
2564         if(pAC->BoardLevel != SK_INIT_RUN) {
2565                 return -EINVAL;
2566         }
2567
2568 #ifdef SK_DIAG_SUPPORT
2569         if (pAC->DiagModeActive == DIAG_ACTIVE) {
2570                 if (pAC->DiagFlowCtrl == SK_FALSE) {
2571                         return -1; /* still in use, deny any actions of MTU */
2572                 } else {
2573                         pAC->DiagFlowCtrl = SK_FALSE;
2574                 }
2575         }
2576 #endif
2577
2578         pOtherDev = pAC->dev[1 - pNet->NetNr];
2579
2580         if ( netif_running(pOtherDev) && (pOtherDev->mtu > 1500)
2581              && (NewMtu <= 1500))
2582                 return 0;
2583
2584         pAC->RxBufSize = NewMtu + 32;
2585         dev->mtu = NewMtu;
2586
2587         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2588                 ("New MTU: %d\n", NewMtu));
2589
2590         /*
2591         ** Prevent any reconfiguration while changing the MTU
2592         ** by disabling any interrupts
2593         */
2594         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
2595         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2596
2597         /*
2598         ** Notify RLMT that any ports are to be stopped
2599         */
2600         EvPara.Para32[0] =  0;
2601         EvPara.Para32[1] = -1;
2602         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2603                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2604                 EvPara.Para32[0] =  1;
2605                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2606         } else {
2607                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2608         }
2609
2610         /*
2611         ** After calling the SkEventDispatcher(), RLMT is aware about
2612         ** the stopped ports -> configuration can take place!
2613         */
2614         SkEventDispatcher(pAC, pAC->IoBase);
2615
2616         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2617                 spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2618                 netif_stop_queue(pAC->dev[i]);
2619
2620         }
2621
2622         /*
2623         ** Depending on the desired MTU size change, a different number of
2624         ** RX buffers need to be allocated
2625         */
2626         if (NewMtu > 1500) {
2627             /*
2628             ** Use less rx buffers
2629             */
2630             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2631                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2632                     pAC->RxPort[i].RxFillLimit =  pAC->RxDescrPerRing -
2633                                                  (pAC->RxDescrPerRing / 4);
2634                 } else {
2635                     if (i == pAC->ActivePort) {
2636                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2637                                                     (pAC->RxDescrPerRing / 4);
2638                     } else {
2639                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2640                                                     (pAC->RxDescrPerRing / 10);
2641                     }
2642                 }
2643             }
2644         } else {
2645             /*
2646             ** Use the normal amount of rx buffers
2647             */
2648             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2649                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2650                     pAC->RxPort[i].RxFillLimit = 1;
2651                 } else {
2652                     if (i == pAC->ActivePort) {
2653                         pAC->RxPort[i].RxFillLimit = 1;
2654                     } else {
2655                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2656                                                     (pAC->RxDescrPerRing / 4);
2657                     }
2658                 }
2659             }
2660         }
2661
2662         SkGeDeInit(pAC, pAC->IoBase);
2663
2664         /*
2665         ** enable/disable hardware support for long frames
2666         */
2667         if (NewMtu > 1500) {
2668 // pAC->JumboActivated = SK_TRUE; /* is never set back !!! */
2669                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
2670         } else {
2671             if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2672                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
2673             } else {
2674                 pAC->GIni.GIPortUsage = SK_RED_LINK;
2675             }
2676         }
2677
2678         SkGeInit(   pAC, pAC->IoBase, SK_INIT_IO);
2679         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
2680         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
2681         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
2682         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
2683         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
2684         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
2685
2686         /*
2687         ** tschilling:
2688         ** Speed and others are set back to default in level 1 init!
2689         */
2690         GetConfiguration(pAC);
2691
2692         SkGeInit(   pAC, pAC->IoBase, SK_INIT_RUN);
2693         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_RUN);
2694         SkEventInit(pAC, pAC->IoBase, SK_INIT_RUN);
2695         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_RUN);
2696         SkAddrInit( pAC, pAC->IoBase, SK_INIT_RUN);
2697         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_RUN);
2698         SkTimerInit(pAC, pAC->IoBase, SK_INIT_RUN);
2699
2700         /*
2701         ** clear and reinit the rx rings here
2702         */
2703         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2704                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
2705                 ClearRxRing(pAC, &pAC->RxPort[i]);
2706                 FillRxRing(pAC, &pAC->RxPort[i]);
2707
2708                 /*
2709                 ** Enable transmit descriptor polling
2710                 */
2711                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
2712                 FillRxRing(pAC, &pAC->RxPort[i]);
2713         };
2714
2715         SkGeYellowLED(pAC, pAC->IoBase, 1);
2716         SkDimEnableModerationIfNeeded(pAC);
2717         SkDimDisplayModerationSettings(pAC);
2718
2719         netif_start_queue(pAC->dev[pNet->PortNr]);
2720         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
2721                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2722         }
2723
2724         /*
2725         ** Enable Interrupts again
2726         */
2727         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
2728         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
2729
2730         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2731         SkEventDispatcher(pAC, pAC->IoBase);
2732
2733         /*
2734         ** Notify RLMT about the changing and restarting one (or more) ports
2735         */
2736         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2737                 EvPara.Para32[0] = pAC->RlmtNets;
2738                 EvPara.Para32[1] = -1;
2739                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, EvPara);
2740                 EvPara.Para32[0] = pNet->PortNr;
2741                 EvPara.Para32[1] = -1;
2742                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2743
2744                 if (netif_running(pOtherDev)) {
2745                         DEV_NET *pOtherNet = netdev_priv(pOtherDev);
2746                         EvPara.Para32[0] = pOtherNet->PortNr;
2747                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2748                 }
2749         } else {
2750                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2751         }
2752
2753         SkEventDispatcher(pAC, pAC->IoBase);
2754         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2755
2756         /*
2757         ** While testing this driver with latest kernel 2.5 (2.5.70), it
2758         ** seems as if upper layers have a problem to handle a successful
2759         ** return value of '0'. If such a zero is returned, the complete
2760         ** system hangs for several minutes (!), which is in acceptable.
2761         **
2762         ** Currently it is not clear, what the exact reason for this problem
2763         ** is. The implemented workaround for 2.5 is to return the desired
2764         ** new MTU size if all needed changes for the new MTU size where
2765         ** performed. In kernels 2.2 and 2.4, a zero value is returned,
2766         ** which indicates the successful change of the mtu-size.
2767         */
2768         return NewMtu;
2769
2770 } /* SkGeChangeMtu */
2771
2772
2773 /*****************************************************************************
2774  *
2775  *      SkGeStats - return ethernet device statistics
2776  *
2777  * Description:
2778  *      This function return statistic data about the ethernet device
2779  *      to the operating system.
2780  *
2781  * Returns:
2782  *      pointer to the statistic structure.
2783  */
2784 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
2785 {
2786 DEV_NET *pNet = netdev_priv(dev);
2787 SK_AC   *pAC = pNet->pAC;
2788 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
2789 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
2790 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
2791 unsigned int    Size;                   /* size of pnmi struct */
2792 unsigned long   Flags;                  /* for spin lock */
2793
2794         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2795                 ("SkGeStats starts now...\n"));
2796         pPnmiStruct = &pAC->PnmiStruct;
2797
2798 #ifdef SK_DIAG_SUPPORT
2799         if ((pAC->DiagModeActive == DIAG_NOTACTIVE) &&
2800                 (pAC->BoardLevel == SK_INIT_RUN)) {
2801 #endif
2802         SK_MEMSET(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
2803         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2804         Size = SK_PNMI_STRUCT_SIZE;
2805                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
2806         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2807 #ifdef SK_DIAG_SUPPORT
2808         }
2809 #endif
2810
2811         pPnmiStat = &pPnmiStruct->Stat[0];
2812         pPnmiConf = &pPnmiStruct->Conf[0];
2813
2814         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
2815         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
2816         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
2817         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
2818
2819         if (dev->mtu <= 1500) {
2820                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
2821         } else {
2822                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
2823                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
2824         }
2825
2826
2827         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
2828                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
2829
2830         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2831         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
2832         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
2833         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
2834         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2835
2836         /* detailed rx_errors: */
2837         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
2838         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2839         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
2840         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
2841         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2842         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
2843
2844         /* detailed tx_errors */
2845         pAC->stats.tx_aborted_errors = (SK_U32) 0;
2846         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2847         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
2848         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2849         pAC->stats.tx_window_errors = (SK_U32) 0;
2850
2851         return(&pAC->stats);
2852 } /* SkGeStats */
2853
2854
2855 /*****************************************************************************
2856  *
2857  *      SkGeIoctl - IO-control function
2858  *
2859  * Description:
2860  *      This function is called if an ioctl is issued on the device.
2861  *      There are three subfunction for reading, writing and test-writing
2862  *      the private MIB data structure (usefull for SysKonnect-internal tools).
2863  *
2864  * Returns:
2865  *      0, if everything is ok
2866  *      !=0, on error
2867  */
2868 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
2869 {
2870 DEV_NET         *pNet;
2871 SK_AC           *pAC;
2872 void            *pMemBuf;
2873 struct pci_dev  *pdev = NULL;
2874 SK_GE_IOCTL     Ioctl;
2875 unsigned int    Err = 0;
2876 int             Size = 0;
2877 int             Ret = 0;
2878 unsigned int    Length = 0;
2879 int             HeaderLength = sizeof(SK_U32) + sizeof(SK_U32);
2880
2881         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2882                 ("SkGeIoctl starts now...\n"));
2883
2884         pNet = netdev_priv(dev);
2885         pAC = pNet->pAC;
2886
2887         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
2888                 return -EFAULT;
2889         }
2890
2891         switch(cmd) {
2892         case SK_IOCTL_SETMIB:
2893         case SK_IOCTL_PRESETMIB:
2894                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2895         case SK_IOCTL_GETMIB:
2896                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
2897                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
2898                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
2899                         return -EFAULT;
2900                 }
2901                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
2902                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
2903                         Ioctl.Len<Size? Ioctl.Len : Size)) {
2904                         return -EFAULT;
2905                 }
2906                 Ioctl.Len = Size;
2907                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2908                         return -EFAULT;
2909                 }
2910                 break;
2911         case SK_IOCTL_GEN:
2912                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2913                         Length = Ioctl.Len;
2914                 } else {
2915                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2916                 }
2917                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2918                         return -ENOMEM;
2919                 }
2920                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2921                         Err = -EFAULT;
2922                         goto fault_gen;
2923                 }
2924                 if ((Ret = SkPnmiGenIoctl(pAC, pAC->IoBase, pMemBuf, &Length, 0)) < 0) {
2925                         Err = -EFAULT;
2926                         goto fault_gen;
2927                 }
2928                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2929                         Err = -EFAULT;
2930                         goto fault_gen;
2931                 }
2932                 Ioctl.Len = Length;
2933                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2934                         Err = -EFAULT;
2935                         goto fault_gen;
2936                 }
2937 fault_gen:
2938                 kfree(pMemBuf); /* cleanup everything */
2939                 break;
2940 #ifdef SK_DIAG_SUPPORT
2941        case SK_IOCTL_DIAG:
2942                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2943                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2944                         Length = Ioctl.Len;
2945                 } else {
2946                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2947                 }
2948                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2949                         return -ENOMEM;
2950                 }
2951                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2952                         Err = -EFAULT;
2953                         goto fault_diag;
2954                 }
2955                 pdev = pAC->PciDev;
2956                 Length = 3 * sizeof(SK_U32);  /* Error, Bus and Device */
2957                 /*
2958                 ** While coding this new IOCTL interface, only a few lines of code
2959                 ** are to to be added. Therefore no dedicated function has been
2960                 ** added. If more functionality is added, a separate function
2961                 ** should be used...
2962                 */
2963                 * ((SK_U32 *)pMemBuf) = 0;
2964                 * ((SK_U32 *)pMemBuf + 1) = pdev->bus->number;
2965                 * ((SK_U32 *)pMemBuf + 2) = ParseDeviceNbrFromSlotName(pci_name(pdev));
2966                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2967                         Err = -EFAULT;
2968                         goto fault_diag;
2969                 }
2970                 Ioctl.Len = Length;
2971                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2972                         Err = -EFAULT;
2973                         goto fault_diag;
2974                 }
2975 fault_diag:
2976                 kfree(pMemBuf); /* cleanup everything */
2977                 break;
2978 #endif
2979         default:
2980                 Err = -EOPNOTSUPP;
2981         }
2982
2983         return(Err);
2984
2985 } /* SkGeIoctl */
2986
2987
2988 /*****************************************************************************
2989  *
2990  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
2991  *
2992  * Description:
2993  *      This function reads/writes the MIB data using PNMI (Private Network
2994  *      Management Interface).
2995  *      The destination for the data must be provided with the
2996  *      ioctl call and is given to the driver in the form of
2997  *      a user space address.
2998  *      Copying from the user-provided data area into kernel messages
2999  *      and back is done by copy_from_user and copy_to_user calls in
3000  *      SkGeIoctl.
3001  *
3002  * Returns:
3003  *      returned size from PNMI call
3004  */
3005 static int SkGeIocMib(
3006 DEV_NET         *pNet,  /* pointer to the adapter context */
3007 unsigned int    Size,   /* length of ioctl data */
3008 int             mode)   /* flag for set/preset */
3009 {
3010 unsigned long   Flags;  /* for spin lock */
3011 SK_AC           *pAC;
3012
3013         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3014                 ("SkGeIocMib starts now...\n"));
3015         pAC = pNet->pAC;
3016         /* access MIB */
3017         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3018         switch(mode) {
3019         case SK_IOCTL_GETMIB:
3020                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3021                         pNet->NetNr);
3022                 break;
3023         case SK_IOCTL_PRESETMIB:
3024                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3025                         pNet->NetNr);
3026                 break;
3027         case SK_IOCTL_SETMIB:
3028                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3029                         pNet->NetNr);
3030                 break;
3031         default:
3032                 break;
3033         }
3034         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3035         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3036                 ("MIB data access succeeded\n"));
3037         return (Size);
3038 } /* SkGeIocMib */
3039
3040
3041 /*****************************************************************************
3042  *
3043  *      GetConfiguration - read configuration information
3044  *
3045  * Description:
3046  *      This function reads per-adapter configuration information from
3047  *      the options provided on the command line.
3048  *
3049  * Returns:
3050  *      none
3051  */
3052 static void GetConfiguration(
3053 SK_AC   *pAC)   /* pointer to the adapter context structure */
3054 {
3055 SK_I32  Port;           /* preferred port */
3056 SK_BOOL AutoSet;
3057 SK_BOOL DupSet;
3058 int     LinkSpeed          = SK_LSPEED_AUTO;    /* Link speed */
3059 int     AutoNeg            = 1;                 /* autoneg off (0) or on (1) */
3060 int     DuplexCap          = 0;                 /* 0=both,1=full,2=half */
3061 int     FlowCtrl           = SK_FLOW_MODE_SYM_OR_REM;   /* FlowControl  */
3062 int     MSMode             = SK_MS_MODE_AUTO;   /* master/slave mode    */
3063
3064 SK_BOOL IsConTypeDefined   = SK_TRUE;
3065 SK_BOOL IsLinkSpeedDefined = SK_TRUE;
3066 SK_BOOL IsFlowCtrlDefined  = SK_TRUE;
3067 SK_BOOL IsRoleDefined      = SK_TRUE;
3068 SK_BOOL IsModeDefined      = SK_TRUE;
3069 /*
3070  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3071  *      parameter. The mapping is described by this table:
3072  *      DuplexCap ->    |       both    |       full    |       half    |
3073  *      AutoNeg         |               |               |               |
3074  *      -----------------------------------------------------------------
3075  *      Off             |    illegal    |       Full    |       Half    |
3076  *      -----------------------------------------------------------------
3077  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3078  *      -----------------------------------------------------------------
3079  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3080  */
3081 int     Capabilities[3][3] =
3082                 { {                -1, SK_LMODE_FULL     , SK_LMODE_HALF     },
3083                   {SK_LMODE_AUTOBOTH , SK_LMODE_AUTOFULL , SK_LMODE_AUTOHALF },
3084                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3085
3086 #define DC_BOTH 0
3087 #define DC_FULL 1
3088 #define DC_HALF 2
3089 #define AN_OFF  0
3090 #define AN_ON   1
3091 #define AN_SENS 2
3092 #define M_CurrPort pAC->GIni.GP[Port]
3093
3094
3095         /*
3096         ** Set the default values first for both ports!
3097         */
3098         for (Port = 0; Port < SK_MAX_MACS; Port++) {
3099                 M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3100                 M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3101                 M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3102                 M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3103         }
3104
3105         /*
3106         ** Check merged parameter ConType. If it has not been used,
3107         ** verify any other parameter (e.g. AutoNeg) and use default values.
3108         **
3109         ** Stating both ConType and other lowlevel link parameters is also
3110         ** possible. If this is the case, the passed ConType-parameter is
3111         ** overwritten by the lowlevel link parameter.
3112         **
3113         ** The following settings are used for a merged ConType-parameter:
3114         **
3115         ** ConType   DupCap   AutoNeg   FlowCtrl      Role      Speed
3116         ** -------   ------   -------   --------   ----------   -----
3117         **  Auto      Both      On      SymOrRem      Auto       Auto
3118         **  100FD     Full      Off       None      <ignored>    100
3119         **  100HD     Half      Off       None      <ignored>    100
3120         **  10FD      Full      Off       None      <ignored>    10
3121         **  10HD      Half      Off       None      <ignored>    10
3122         **
3123         ** This ConType parameter is used for all ports of the adapter!
3124         */
3125         if ( (ConType != NULL)                &&
3126              (pAC->Index < SK_MAX_CARD_PARAM) &&
3127              (ConType[pAC->Index] != NULL) ) {
3128
3129                         /* Check chipset family */
3130                         if ((!pAC->ChipsetType) &&
3131                                 (strcmp(ConType[pAC->Index],"Auto")!=0) &&
3132                                 (strcmp(ConType[pAC->Index],"")!=0)) {
3133                                 /* Set the speed parameter back */
3134                                         printk("sk98lin: Illegal value \"%s\" "
3135                                                         "for ConType."
3136                                                         " Using Auto.\n",
3137                                                         ConType[pAC->Index]);
3138
3139                                         sprintf(ConType[pAC->Index], "Auto");
3140                         }
3141
3142                                 if (strcmp(ConType[pAC->Index],"")==0) {
3143                         IsConTypeDefined = SK_FALSE; /* No ConType defined */
3144                                 } else if (strcmp(ConType[pAC->Index],"Auto")==0) {
3145                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3146                         M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3147                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3148                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3149                         M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3150                     }
3151                 } else if (strcmp(ConType[pAC->Index],"100FD")==0) {
3152                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3153                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3154                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3155                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3156                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3157                     }
3158                 } else if (strcmp(ConType[pAC->Index],"100HD")==0) {
3159                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3160                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3161                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3162                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3163                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3164                     }
3165                 } else if (strcmp(ConType[pAC->Index],"10FD")==0) {
3166                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3167                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3168                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3169                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3170                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3171                     }
3172                 } else if (strcmp(ConType[pAC->Index],"10HD")==0) {
3173                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3174                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3175                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3176                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3177                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3178                     }
3179                 } else {
3180                     printk("sk98lin: Illegal value \"%s\" for ConType\n",
3181                         ConType[pAC->Index]);
3182                     IsConTypeDefined = SK_FALSE; /* Wrong ConType defined */
3183                 }
3184         } else {
3185             IsConTypeDefined = SK_FALSE; /* No ConType defined */
3186         }
3187
3188         /*
3189         ** Parse any parameter settings for port A:
3190         ** a) any LinkSpeed stated?
3191         */
3192         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3193                 Speed_A[pAC->Index] != NULL) {
3194                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3195                     IsLinkSpeedDefined = SK_FALSE;
3196                 } else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3197                     LinkSpeed = SK_LSPEED_AUTO;
3198                 } else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3199                     LinkSpeed = SK_LSPEED_10MBPS;
3200                 } else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3201                     LinkSpeed = SK_LSPEED_100MBPS;
3202                 } else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3203                     LinkSpeed = SK_LSPEED_1000MBPS;
3204                 } else {
3205                     printk("sk98lin: Illegal value \"%s\" for Speed_A\n",
3206                         Speed_A[pAC->Index]);
3207                     IsLinkSpeedDefined = SK_FALSE;
3208                 }
3209         } else {
3210             IsLinkSpeedDefined = SK_FALSE;
3211         }
3212
3213         /*
3214         ** Check speed parameter:
3215         **    Only copper type adapter and GE V2 cards
3216         */
3217         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3218                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3219                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3220                 printk("sk98lin: Illegal value for Speed_A. "
3221                         "Not a copper card or GE V2 card\n    Using "
3222                         "speed 1000\n");
3223                 LinkSpeed = SK_LSPEED_1000MBPS;
3224         }
3225
3226         /*
3227         ** Decide whether to set new config value if somethig valid has
3228         ** been received.
3229         */
3230         if (IsLinkSpeedDefined) {
3231                 pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3232         }
3233
3234         /*
3235         ** b) Any Autonegotiation and DuplexCapabilities set?
3236         **    Please note that both belong together...
3237         */
3238         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3239         AutoSet = SK_FALSE;
3240         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3241                 AutoNeg_A[pAC->Index] != NULL) {
3242                 AutoSet = SK_TRUE;
3243                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3244                     AutoSet = SK_FALSE;
3245                 } else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3246                     AutoNeg = AN_ON;
3247                 } else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3248                     AutoNeg = AN_OFF;
3249                 } else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3250                     AutoNeg = AN_SENS;
3251                 } else {
3252                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_A\n",
3253                         AutoNeg_A[pAC->Index]);
3254                 }
3255         }
3256
3257         DuplexCap = DC_BOTH;
3258         DupSet    = SK_FALSE;
3259         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3260                 DupCap_A[pAC->Index] != NULL) {
3261                 DupSet = SK_TRUE;
3262                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3263                     DupSet = SK_FALSE;
3264                 } else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3265                     DuplexCap = DC_BOTH;
3266                 } else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3267                     DuplexCap = DC_FULL;
3268                 } else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3269                     DuplexCap = DC_HALF;
3270                 } else {
3271                     printk("sk98lin: Illegal value \"%s\" for DupCap_A\n",
3272                         DupCap_A[pAC->Index]);
3273                 }
3274         }
3275
3276         /*
3277         ** Check for illegal combinations
3278         */
3279         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3280                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3281                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3282                 (pAC->ChipsetType)) {
3283                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3284                                         "    Using Full Duplex.\n");
3285                                 DuplexCap = DC_FULL;
3286         }
3287
3288         if ( AutoSet && AutoNeg==AN_SENS && DupSet) {
3289                 printk("sk98lin, Port A: DuplexCapabilities"
3290                         " ignored using Sense mode\n");
3291         }
3292
3293         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3294                 printk("sk98lin: Port A: Illegal combination"
3295                         " of values AutoNeg. and DuplexCap.\n    Using "
3296                         "Full Duplex\n");
3297                 DuplexCap = DC_FULL;
3298         }
3299
3300         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3301                 DuplexCap = DC_FULL;
3302         }
3303
3304         if (!AutoSet && DupSet) {
3305                 printk("sk98lin: Port A: Duplex setting not"
3306                         " possible in\n    default AutoNegotiation mode"
3307                         " (Sense).\n    Using AutoNegotiation On\n");
3308                 AutoNeg = AN_ON;
3309         }
3310
3311         /*
3312         ** set the desired mode
3313         */
3314         if (AutoSet || DupSet) {
3315             pAC->GIni.GP[0].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3316         }
3317
3318         /*
3319         ** c) Any Flowcontrol-parameter set?
3320         */
3321         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3322                 FlowCtrl_A[pAC->Index] != NULL) {
3323                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3324                     IsFlowCtrlDefined = SK_FALSE;
3325                 } else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3326                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3327                 } else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3328                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3329                 } else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3330                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3331                 } else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3332                     FlowCtrl = SK_FLOW_MODE_NONE;
3333                 } else {
3334                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_A\n",
3335                         FlowCtrl_A[pAC->Index]);
3336                     IsFlowCtrlDefined = SK_FALSE;
3337                 }
3338         } else {
3339            IsFlowCtrlDefined = SK_FALSE;
3340         }
3341
3342         if (IsFlowCtrlDefined) {
3343             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3344                 printk("sk98lin: Port A: FlowControl"
3345                         " impossible without AutoNegotiation,"
3346                         " disabled\n");
3347                 FlowCtrl = SK_FLOW_MODE_NONE;
3348             }
3349             pAC->GIni.GP[0].PFlowCtrlMode = FlowCtrl;
3350         }
3351
3352         /*
3353         ** d) What is with the RoleParameter?
3354         */
3355         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3356                 Role_A[pAC->Index] != NULL) {
3357                 if (strcmp(Role_A[pAC->Index],"")==0) {
3358                    IsRoleDefined = SK_FALSE;
3359                 } else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3360                     MSMode = SK_MS_MODE_AUTO;
3361                 } else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3362                     MSMode = SK_MS_MODE_MASTER;
3363                 } else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3364                     MSMode = SK_MS_MODE_SLAVE;
3365                 } else {
3366                     printk("sk98lin: Illegal value \"%s\" for Role_A\n",
3367                         Role_A[pAC->Index]);
3368                     IsRoleDefined = SK_FALSE;
3369                 }
3370         } else {
3371            IsRoleDefined = SK_FALSE;
3372         }
3373
3374         if (IsRoleDefined == SK_TRUE) {
3375             pAC->GIni.GP[0].PMSMode = MSMode;
3376         }
3377
3378
3379
3380         /*
3381         ** Parse any parameter settings for port B:
3382         ** a) any LinkSpeed stated?
3383         */
3384         IsConTypeDefined   = SK_TRUE;
3385         IsLinkSpeedDefined = SK_TRUE;
3386         IsFlowCtrlDefined  = SK_TRUE;
3387         IsModeDefined      = SK_TRUE;
3388
3389         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3390                 Speed_B[pAC->Index] != NULL) {
3391                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3392                     IsLinkSpeedDefined = SK_FALSE;
3393                 } else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3394                     LinkSpeed = SK_LSPEED_AUTO;
3395                 } else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3396                     LinkSpeed = SK_LSPEED_10MBPS;
3397                 } else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3398                     LinkSpeed = SK_LSPEED_100MBPS;
3399                 } else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3400                     LinkSpeed = SK_LSPEED_1000MBPS;
3401                 } else {
3402                     printk("sk98lin: Illegal value \"%s\" for Speed_B\n",
3403                         Speed_B[pAC->Index]);
3404                     IsLinkSpeedDefined = SK_FALSE;
3405                 }
3406         } else {
3407             IsLinkSpeedDefined = SK_FALSE;
3408         }
3409
3410         /*
3411         ** Check speed parameter:
3412         **    Only copper type adapter and GE V2 cards
3413         */
3414         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3415                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3416                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3417                 printk("sk98lin: Illegal value for Speed_B. "
3418                         "Not a copper card or GE V2 card\n    Using "
3419                         "speed 1000\n");
3420                 LinkSpeed = SK_LSPEED_1000MBPS;
3421         }
3422
3423         /*
3424         ** Decide whether to set new config value if somethig valid has
3425         ** been received.
3426         */
3427         if (IsLinkSpeedDefined) {
3428             pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3429         }
3430
3431         /*
3432         ** b) Any Autonegotiation and DuplexCapabilities set?
3433         **    Please note that both belong together...
3434         */
3435         AutoNeg = AN_SENS; /* default: do auto Sense */
3436         AutoSet = SK_FALSE;
3437         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3438                 AutoNeg_B[pAC->Index] != NULL) {
3439                 AutoSet = SK_TRUE;
3440                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3441                     AutoSet = SK_FALSE;
3442                 } else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3443                     AutoNeg = AN_ON;
3444                 } else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3445                     AutoNeg = AN_OFF;
3446                 } else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3447                     AutoNeg = AN_SENS;
3448                 } else {
3449                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_B\n",
3450                         AutoNeg_B[pAC->Index]);
3451                 }
3452         }
3453
3454         DuplexCap = DC_BOTH;
3455         DupSet    = SK_FALSE;
3456         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3457                 DupCap_B[pAC->Index] != NULL) {
3458                 DupSet = SK_TRUE;
3459                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3460                     DupSet = SK_FALSE;
3461                 } else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3462                     DuplexCap = DC_BOTH;
3463                 } else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3464                     DuplexCap = DC_FULL;
3465                 } else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3466                     DuplexCap = DC_HALF;
3467                 } else {
3468                     printk("sk98lin: Illegal value \"%s\" for DupCap_B\n",
3469                         DupCap_B[pAC->Index]);
3470                 }
3471         }
3472
3473
3474         /*
3475         ** Check for illegal combinations
3476         */
3477         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3478                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3479                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3480                 (pAC->ChipsetType)) {
3481                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3482                                         "    Using Full Duplex.\n");
3483                                 DuplexCap = DC_FULL;
3484         }
3485
3486         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3487                 printk("sk98lin, Port B: DuplexCapabilities"
3488                         " ignored using Sense mode\n");
3489         }
3490
3491         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3492                 printk("sk98lin: Port B: Illegal combination"
3493                         " of values AutoNeg. and DuplexCap.\n    Using "
3494                         "Full Duplex\n");
3495                 DuplexCap = DC_FULL;
3496         }
3497
3498         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3499                 DuplexCap = DC_FULL;
3500         }
3501
3502         if (!AutoSet && DupSet) {
3503                 printk("sk98lin: Port B: Duplex setting not"
3504                         " possible in\n    default AutoNegotiation mode"
3505                         " (Sense).\n    Using AutoNegotiation On\n");
3506                 AutoNeg = AN_ON;
3507         }
3508
3509         /*
3510         ** set the desired mode
3511         */
3512         if (AutoSet || DupSet) {
3513             pAC->GIni.GP[1].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3514         }
3515
3516         /*
3517         ** c) Any FlowCtrl parameter set?
3518         */
3519         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3520                 FlowCtrl_B[pAC->Index] != NULL) {
3521                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3522                     IsFlowCtrlDefined = SK_FALSE;
3523                 } else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3524                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3525                 } else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3526                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3527                 } else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
3528                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3529                 } else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
3530                     FlowCtrl = SK_FLOW_MODE_NONE;
3531                 } else {
3532                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_B\n",
3533                         FlowCtrl_B[pAC->Index]);
3534                     IsFlowCtrlDefined = SK_FALSE;
3535                 }
3536         } else {
3537                 IsFlowCtrlDefined = SK_FALSE;
3538         }
3539
3540         if (IsFlowCtrlDefined) {
3541             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3542                 printk("sk98lin: Port B: FlowControl"
3543                         " impossible without AutoNegotiation,"
3544                         " disabled\n");
3545                 FlowCtrl = SK_FLOW_MODE_NONE;
3546             }
3547             pAC->GIni.GP[1].PFlowCtrlMode = FlowCtrl;
3548         }
3549
3550         /*
3551         ** d) What is the RoleParameter?
3552         */
3553         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3554                 Role_B[pAC->Index] != NULL) {
3555                 if (strcmp(Role_B[pAC->Index],"")==0) {
3556                     IsRoleDefined = SK_FALSE;
3557                 } else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
3558                     MSMode = SK_MS_MODE_AUTO;
3559                 } else if (strcmp(Role_B[pAC->Index],"Master")==0) {
3560                     MSMode = SK_MS_MODE_MASTER;
3561                 } else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
3562                     MSMode = SK_MS_MODE_SLAVE;
3563                 } else {
3564                     printk("sk98lin: Illegal value \"%s\" for Role_B\n",
3565                         Role_B[pAC->Index]);
3566                     IsRoleDefined = SK_FALSE;
3567                 }
3568         } else {
3569             IsRoleDefined = SK_FALSE;
3570         }
3571
3572         if (IsRoleDefined) {
3573             pAC->GIni.GP[1].PMSMode = MSMode;
3574         }
3575
3576         /*
3577         ** Evaluate settings for both ports
3578         */
3579         pAC->ActivePort = 0;
3580         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3581                 PrefPort[pAC->Index] != NULL) {
3582                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
3583                         pAC->ActivePort             =  0;
3584                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
3585                         pAC->Rlmt.Net[0].PrefPort   =  0;
3586                 } else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
3587                         /*
3588                         ** do not set ActivePort here, thus a port
3589                         ** switch is issued after net up.
3590                         */
3591                         Port                        = 0;
3592                         pAC->Rlmt.Net[0].Preference = Port;
3593                         pAC->Rlmt.Net[0].PrefPort   = Port;
3594                 } else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
3595                         /*
3596                         ** do not set ActivePort here, thus a port
3597                         ** switch is issued after net up.
3598                         */
3599                         if (pAC->GIni.GIMacsFound == 1) {
3600                                 printk("sk98lin: Illegal value \"B\" for PrefPort.\n"
3601                                         "      Port B not available on single port adapters.\n");
3602
3603                                 pAC->ActivePort             =  0;
3604                                 pAC->Rlmt.Net[0].Preference = -1; /* auto */
3605                                 pAC->Rlmt.Net[0].PrefPort   =  0;
3606                         } else {
3607                                 Port                        = 1;
3608                                 pAC->Rlmt.Net[0].Preference = Port;
3609                                 pAC->Rlmt.Net[0].PrefPort   = Port;
3610                         }
3611                 } else {
3612                     printk("sk98lin: Illegal value \"%s\" for PrefPort\n",
3613                         PrefPort[pAC->Index]);
3614                 }
3615         }
3616
3617         pAC->RlmtNets = 1;
3618
3619         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3620                 RlmtMode[pAC->Index] != NULL) {
3621                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
3622                         pAC->RlmtMode = 0;
3623                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
3624                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3625                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
3626                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3627                                         SK_RLMT_CHECK_LOC_LINK;
3628                 } else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
3629                         pAC->RlmtMode = SK_RLMT_CHECK_LINK     |
3630                                         SK_RLMT_CHECK_LOC_LINK |
3631                                         SK_RLMT_CHECK_SEG;
3632                 } else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
3633                         (pAC->GIni.GIMacsFound == 2)) {
3634                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3635                         pAC->RlmtNets = 2;
3636                 } else {
3637                     printk("sk98lin: Illegal value \"%s\" for"
3638                         " RlmtMode, using default\n",
3639                         RlmtMode[pAC->Index]);
3640                         pAC->RlmtMode = 0;
3641                 }
3642         } else {
3643                 pAC->RlmtMode = 0;
3644         }
3645
3646         /*
3647         ** Check the interrupt moderation parameters
3648         */
3649         if (Moderation[pAC->Index] != NULL) {
3650                 if (strcmp(Moderation[pAC->Index], "") == 0) {
3651                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3652                 } else if (strcmp(Moderation[pAC->Index], "Static") == 0) {
3653                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_STATIC;
3654                 } else if (strcmp(Moderation[pAC->Index], "Dynamic") == 0) {
3655                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_DYNAMIC;
3656                 } else if (strcmp(Moderation[pAC->Index], "None") == 0) {
3657                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3658                 } else {
3659                         printk("sk98lin: Illegal value \"%s\" for Moderation.\n"
3660                                 "      Disable interrupt moderation.\n",
3661                                 Moderation[pAC->Index]);
3662                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3663                 }
3664         } else {
3665                 pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3666         }
3667
3668         if (Stats[pAC->Index] != NULL) {
3669                 if (strcmp(Stats[pAC->Index], "Yes") == 0) {
3670                         pAC->DynIrqModInfo.DisplayStats = SK_TRUE;
3671                 } else {
3672                         pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3673                 }
3674         } else {
3675                 pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3676         }
3677
3678         if (ModerationMask[pAC->Index] != NULL) {
3679                 if (strcmp(ModerationMask[pAC->Index], "Rx") == 0) {
3680                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3681                 } else if (strcmp(ModerationMask[pAC->Index], "Tx") == 0) {
3682                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_ONLY;
3683                 } else if (strcmp(ModerationMask[pAC->Index], "Sp") == 0) {
3684                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_ONLY;
3685                 } else if (strcmp(ModerationMask[pAC->Index], "RxSp") == 0) {
3686                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3687                 } else if (strcmp(ModerationMask[pAC->Index], "SpRx") == 0) {
3688                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3689                 } else if (strcmp(ModerationMask[pAC->Index], "RxTx") == 0) {
3690                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3691                 } else if (strcmp(ModerationMask[pAC->Index], "TxRx") == 0) {
3692                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3693                 } else if (strcmp(ModerationMask[pAC->Index], "TxSp") == 0) {
3694                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3695                 } else if (strcmp(ModerationMask[pAC->Index], "SpTx") == 0) {
3696                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3697                 } else if (strcmp(ModerationMask[pAC->Index], "RxTxSp") == 0) {
3698                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3699                 } else if (strcmp(ModerationMask[pAC->Index], "RxSpTx") == 0) {
3700                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3701                 } else if (strcmp(ModerationMask[pAC->Index], "TxRxSp") == 0) {
3702                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3703                 } else if (strcmp(ModerationMask[pAC->Index], "TxSpRx") == 0) {
3704                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3705                 } else if (strcmp(ModerationMask[pAC->Index], "SpTxRx") == 0) {
3706                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3707                 } else if (strcmp(ModerationMask[pAC->Index], "SpRxTx") == 0) {
3708                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3709                 } else { /* some rubbish */
3710                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3711                 }
3712         } else {  /* operator has stated nothing */
3713                 pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3714         }
3715
3716         if (AutoSizing[pAC->Index] != NULL) {
3717                 if (strcmp(AutoSizing[pAC->Index], "On") == 0) {
3718                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3719                 } else {
3720                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3721                 }
3722         } else {  /* operator has stated nothing */
3723                 pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3724         }
3725
3726         if (IntsPerSec[pAC->Index] != 0) {
3727                 if ((IntsPerSec[pAC->Index]< C_INT_MOD_IPS_LOWER_RANGE) ||
3728                         (IntsPerSec[pAC->Index] > C_INT_MOD_IPS_UPPER_RANGE)) {
3729                         printk("sk98lin: Illegal value \"%d\" for IntsPerSec. (Range: %d - %d)\n"
3730                                 "      Using default value of %i.\n",
3731                                 IntsPerSec[pAC->Index],
3732                                 C_INT_MOD_IPS_LOWER_RANGE,
3733                                 C_INT_MOD_IPS_UPPER_RANGE,
3734                                 C_INTS_PER_SEC_DEFAULT);
3735                         pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3736                 } else {
3737                         pAC->DynIrqModInfo.MaxModIntsPerSec = IntsPerSec[pAC->Index];
3738                 }
3739         } else {
3740                 pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3741         }
3742
3743         /*
3744         ** Evaluate upper and lower moderation threshold
3745         */
3746         pAC->DynIrqModInfo.MaxModIntsPerSecUpperLimit =
3747                 pAC->DynIrqModInfo.MaxModIntsPerSec +
3748                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3749
3750         pAC->DynIrqModInfo.MaxModIntsPerSecLowerLimit =
3751                 pAC->DynIrqModInfo.MaxModIntsPerSec -
3752                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3753
3754         pAC->DynIrqModInfo.PrevTimeVal = jiffies;  /* initial value */
3755
3756
3757 } /* GetConfiguration */
3758
3759
3760 /*****************************************************************************
3761  *
3762  *      ProductStr - return a adapter identification string from vpd
3763  *
3764  * Description:
3765  *      This function reads the product name string from the vpd area
3766  *      and puts it the field pAC->DeviceString.
3767  *
3768  * Returns: N/A
3769  */
3770 static inline int ProductStr(
3771         SK_AC   *pAC,           /* pointer to adapter context */
3772         char    *DeviceStr,     /* result string */
3773         int      StrLen         /* length of the string */
3774 )
3775 {
3776 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
3777 int     ReturnCode;             /* return code from vpd_read */
3778 unsigned long Flags;
3779
3780         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3781         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, DeviceStr, &StrLen);
3782         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3783
3784         return ReturnCode;
3785 } /* ProductStr */
3786
3787 /*****************************************************************************
3788  *
3789  *      StartDrvCleanupTimer - Start timer to check for descriptors which
3790  *                             might be placed in descriptor ring, but
3791  *                             havent been handled up to now
3792  *
3793  * Description:
3794  *      This function requests a HW-timer fo the Yukon card. The actions to
3795  *      perform when this timer expires, are located in the SkDrvEvent().
3796  *
3797  * Returns: N/A
3798  */
3799 static void
3800 StartDrvCleanupTimer(SK_AC *pAC) {
3801     SK_EVPARA    EventParam;   /* Event struct for timer event */
3802
3803     SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
3804     EventParam.Para32[0] = SK_DRV_RX_CLEANUP_TIMER;
3805     SkTimerStart(pAC, pAC->IoBase, &pAC->DrvCleanupTimer,
3806                  SK_DRV_RX_CLEANUP_TIMER_LENGTH,
3807                  SKGE_DRV, SK_DRV_TIMER, EventParam);
3808 }
3809
3810 /*****************************************************************************
3811  *
3812  *      StopDrvCleanupTimer - Stop timer to check for descriptors
3813  *
3814  * Description:
3815  *      This function requests a HW-timer fo the Yukon card. The actions to
3816  *      perform when this timer expires, are located in the SkDrvEvent().
3817  *
3818  * Returns: N/A
3819  */
3820 static void
3821 StopDrvCleanupTimer(SK_AC *pAC) {
3822     SkTimerStop(pAC, pAC->IoBase, &pAC->DrvCleanupTimer);
3823     SK_MEMSET((char *) &pAC->DrvCleanupTimer, 0, sizeof(SK_TIMER));
3824 }
3825
3826 /****************************************************************************/
3827 /* functions for common modules *********************************************/
3828 /****************************************************************************/
3829
3830
3831 /*****************************************************************************
3832  *
3833  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
3834  *
3835  * Description:
3836  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
3837  *      is embedded into a socket buff data area.
3838  *
3839  * Context:
3840  *      runtime
3841  *
3842  * Returns:
3843  *      NULL or pointer to Mbuf.
3844  */
3845 SK_MBUF *SkDrvAllocRlmtMbuf(
3846 SK_AC           *pAC,           /* pointer to adapter context */
3847 SK_IOC          IoC,            /* the IO-context */
3848 unsigned        BufferSize)     /* size of the requested buffer */
3849 {
3850 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
3851 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
3852
3853         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
3854         if (pMsgBlock == NULL) {
3855                 return (NULL);
3856         }
3857         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
3858         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
3859         pRlmtMbuf->pNext = NULL;
3860         pRlmtMbuf->pOs = pMsgBlock;
3861         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
3862         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
3863         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
3864         return (pRlmtMbuf);
3865
3866 } /* SkDrvAllocRlmtMbuf */
3867
3868
3869 /*****************************************************************************
3870  *
3871  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
3872  *
3873  * Description:
3874  *      This routine frees one or more RLMT mbuf(s).
3875  *
3876  * Context:
3877  *      runtime
3878  *
3879  * Returns:
3880  *      Nothing
3881  */
3882 void  SkDrvFreeRlmtMbuf(
3883 SK_AC           *pAC,           /* pointer to adapter context */
3884 SK_IOC          IoC,            /* the IO-context */
3885 SK_MBUF         *pMbuf)         /* size of the requested buffer */
3886 {
3887 SK_MBUF         *pFreeMbuf;
3888 SK_MBUF         *pNextMbuf;
3889
3890         pFreeMbuf = pMbuf;
3891         do {
3892                 pNextMbuf = pFreeMbuf->pNext;
3893                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
3894                 pFreeMbuf = pNextMbuf;
3895         } while ( pFreeMbuf != NULL );
3896 } /* SkDrvFreeRlmtMbuf */
3897
3898
3899 /*****************************************************************************
3900  *
3901  *      SkOsGetTime - provide a time value
3902  *
3903  * Description:
3904  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
3905  *      It is not used for absolute time, but only for time differences.
3906  *
3907  *
3908  * Returns:
3909  *      Time value
3910  */
3911 SK_U64 SkOsGetTime(SK_AC *pAC)
3912 {
3913         SK_U64  PrivateJiffies;
3914         SkOsGetTimeCurrent(pAC, &PrivateJiffies);
3915         return PrivateJiffies;
3916 } /* SkOsGetTime */
3917
3918
3919 /*****************************************************************************
3920  *
3921  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
3922  *
3923  * Description:
3924  *      This routine reads a 32 bit value from the pci configuration
3925  *      space.
3926  *
3927  * Returns:
3928  *      0 - indicate everything worked ok.
3929  *      != 0 - error indication
3930  */
3931 int SkPciReadCfgDWord(
3932 SK_AC *pAC,             /* Adapter Control structure pointer */
3933 int PciAddr,            /* PCI register address */
3934 SK_U32 *pVal)           /* pointer to store the read value */
3935 {
3936         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
3937         return(0);
3938 } /* SkPciReadCfgDWord */
3939
3940
3941 /*****************************************************************************
3942  *
3943  *      SkPciReadCfgWord - read a 16 bit value from pci config space
3944  *
3945  * Description:
3946  *      This routine reads a 16 bit value from the pci configuration
3947  *      space.
3948  *
3949  * Returns:
3950  *      0 - indicate everything worked ok.
3951  *      != 0 - error indication
3952  */
3953 int SkPciReadCfgWord(
3954 SK_AC *pAC,     /* Adapter Control structure pointer */
3955 int PciAddr,            /* PCI register address */
3956 SK_U16 *pVal)           /* pointer to store the read value */
3957 {
3958         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
3959         return(0);
3960 } /* SkPciReadCfgWord */
3961
3962
3963 /*****************************************************************************
3964  *
3965  *      SkPciReadCfgByte - read a 8 bit value from pci config space
3966  *
3967  * Description:
3968  *      This routine reads a 8 bit value from the pci configuration
3969  *      space.
3970  *
3971  * Returns:
3972  *      0 - indicate everything worked ok.
3973  *      != 0 - error indication
3974  */
3975 int SkPciReadCfgByte(
3976 SK_AC *pAC,     /* Adapter Control structure pointer */
3977 int PciAddr,            /* PCI register address */
3978 SK_U8 *pVal)            /* pointer to store the read value */
3979 {
3980         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
3981         return(0);
3982 } /* SkPciReadCfgByte */
3983
3984
3985 /*****************************************************************************
3986  *
3987  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
3988  *
3989  * Description:
3990  *      This routine writes a 16 bit value to the pci configuration
3991  *      space. The flag PciConfigUp indicates whether the config space
3992  *      is accesible or must be set up first.
3993  *
3994  * Returns:
3995  *      0 - indicate everything worked ok.
3996  *      != 0 - error indication
3997  */
3998 int SkPciWriteCfgWord(
3999 SK_AC *pAC,     /* Adapter Control structure pointer */
4000 int PciAddr,            /* PCI register address */
4001 SK_U16 Val)             /* pointer to store the read value */
4002 {
4003         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4004         return(0);
4005 } /* SkPciWriteCfgWord */
4006
4007
4008 /*****************************************************************************
4009  *
4010  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4011  *
4012  * Description:
4013  *      This routine writes a 8 bit value to the pci configuration
4014  *      space. The flag PciConfigUp indicates whether the config space
4015  *      is accesible or must be set up first.
4016  *
4017  * Returns:
4018  *      0 - indicate everything worked ok.
4019  *      != 0 - error indication
4020  */
4021 int SkPciWriteCfgByte(
4022 SK_AC *pAC,     /* Adapter Control structure pointer */
4023 int PciAddr,            /* PCI register address */
4024 SK_U8 Val)              /* pointer to store the read value */
4025 {
4026         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4027         return(0);
4028 } /* SkPciWriteCfgByte */
4029
4030
4031 /*****************************************************************************
4032  *
4033  *      SkDrvEvent - handle driver events
4034  *
4035  * Description:
4036  *      This function handles events from all modules directed to the driver
4037  *
4038  * Context:
4039  *      Is called under protection of slow path lock.
4040  *
4041  * Returns:
4042  *      0 if everything ok
4043  *      < 0  on error
4044  *
4045  */
4046 int SkDrvEvent(
4047 SK_AC *pAC,             /* pointer to adapter context */
4048 SK_IOC IoC,             /* io-context */
4049 SK_U32 Event,           /* event-id */
4050 SK_EVPARA Param)        /* event-parameter */
4051 {
4052 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4053 struct sk_buff  *pMsg;          /* pointer to a message block */
4054 int             FromPort;       /* the port from which we switch away */
4055 int             ToPort;         /* the port we switch to */
4056 SK_EVPARA       NewPara;        /* parameter for further events */
4057 int             Stat;
4058 unsigned long   Flags;
4059 SK_BOOL         DualNet;
4060
4061         switch (Event) {
4062         case SK_DRV_ADAP_FAIL:
4063                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4064                         ("ADAPTER FAIL EVENT\n"));
4065                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4066                 /* disable interrupts */
4067                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4068                 /* cgoos */
4069                 break;
4070         case SK_DRV_PORT_FAIL:
4071                 FromPort = Param.Para32[0];
4072                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4073                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4074                 if (FromPort == 0) {
4075                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4076                 } else {
4077                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4078                 }
4079                 /* cgoos */
4080                 break;
4081         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4082                 /* action list 4 */
4083                 FromPort = Param.Para32[0];
4084                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4085                         ("PORT RESET EVENT, Port: %d ", FromPort));
4086                 NewPara.Para64 = FromPort;
4087                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4088                 spin_lock_irqsave(
4089                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4090                         Flags);
4091
4092                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4093                 netif_carrier_off(pAC->dev[Param.Para32[0]]);
4094                 spin_unlock_irqrestore(
4095                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4096                         Flags);
4097
4098                 /* clear rx ring from received frames */
4099                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4100
4101                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4102                 spin_lock_irqsave(
4103                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4104                         Flags);
4105
4106                 /* tschilling: Handling of return value inserted. */
4107                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4108                         if (FromPort == 0) {
4109                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4110                         } else {
4111                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4112                         }
4113                 }
4114                 SkAddrMcUpdate(pAC,IoC, FromPort);
4115                 PortReInitBmu(pAC, FromPort);
4116                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4117                 ClearAndStartRx(pAC, FromPort);
4118                 spin_unlock_irqrestore(
4119                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4120                         Flags);
4121                 break;
4122         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4123         {       struct net_device *dev = pAC->dev[Param.Para32[0]];
4124                 /* action list 5 */
4125                 FromPort = Param.Para32[0];
4126                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4127                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4128                 /* Mac update */
4129                 SkAddrMcUpdate(pAC,IoC, FromPort);
4130
4131                 if (DoPrintInterfaceChange) {
4132                 printk("%s: network connection up using"
4133                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4134
4135                 /* tschilling: Values changed according to LinkSpeedUsed. */
4136                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4137                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4138                         printk("    speed:           10\n");
4139                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4140                         printk("    speed:           100\n");
4141                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4142                         printk("    speed:           1000\n");
4143                 } else {
4144                         printk("    speed:           unknown\n");
4145                 }
4146
4147
4148                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4149                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4150                         Stat == SK_LMODE_STAT_AUTOFULL) {
4151                         printk("    autonegotiation: yes\n");
4152                 }
4153                 else {
4154                         printk("    autonegotiation: no\n");
4155                 }
4156                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4157                         Stat == SK_LMODE_STAT_HALF) {
4158                         printk("    duplex mode:     half\n");
4159                 }
4160                 else {
4161                         printk("    duplex mode:     full\n");
4162                 }
4163                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4164                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4165                         printk("    flowctrl:        remote send\n");
4166                 }
4167                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4168                         printk("    flowctrl:        local send\n");
4169                 }
4170                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4171                         printk("    flowctrl:        symmetric\n");
4172                 }
4173                 else {
4174                         printk("    flowctrl:        none\n");
4175                 }
4176
4177                 /* tschilling: Check against CopperType now. */
4178                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4179                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4180                         SK_LSPEED_STAT_1000MBPS)) {
4181                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4182                         if (Stat == SK_MS_STAT_MASTER ) {
4183                                 printk("    role:            master\n");
4184                         }
4185                         else if (Stat == SK_MS_STAT_SLAVE ) {
4186                                 printk("    role:            slave\n");
4187                         }
4188                         else {
4189                                 printk("    role:            ???\n");
4190                         }
4191                 }
4192
4193                 /*
4194                    Display dim (dynamic interrupt moderation)
4195                    informations
4196                  */
4197                 if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC)
4198                         printk("    irq moderation:  static (%d ints/sec)\n",
4199                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4200                 else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC)
4201                         printk("    irq moderation:  dynamic (%d ints/sec)\n",
4202                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4203                 else
4204                         printk("    irq moderation:  disabled\n");
4205
4206
4207                 printk("    scatter-gather:  %s\n",
4208                        (dev->features & NETIF_F_SG) ? "enabled" : "disabled");
4209                 printk("    tx-checksum:     %s\n",
4210                        (dev->features & NETIF_F_IP_CSUM) ? "enabled" : "disabled");
4211                 printk("    rx-checksum:     %s\n",
4212                        pAC->RxPort[Param.Para32[0]].RxCsum ? "enabled" : "disabled");
4213
4214                 } else {
4215                         DoPrintInterfaceChange = SK_TRUE;
4216                 }
4217
4218                 if ((Param.Para32[0] != pAC->ActivePort) &&
4219                         (pAC->RlmtNets == 1)) {
4220                         NewPara.Para32[0] = pAC->ActivePort;
4221                         NewPara.Para32[1] = Param.Para32[0];
4222                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4223                                 NewPara);
4224                 }
4225
4226                 /* Inform the world that link protocol is up. */
4227                 netif_carrier_on(dev);
4228                 break;
4229         }
4230         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4231                 /* action list 7 */
4232                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4233                         ("NET DOWN EVENT "));
4234                 if (DoPrintInterfaceChange) {
4235                         printk("%s: network connection down\n",
4236                                 pAC->dev[Param.Para32[1]]->name);
4237                 } else {
4238                         DoPrintInterfaceChange = SK_TRUE;
4239                 }
4240                 netif_carrier_off(pAC->dev[Param.Para32[1]]);
4241                 break;
4242         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4243                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4244                         ("PORT SWITCH HARD "));
4245         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4246         /* action list 6 */
4247                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4248                         'A'+Param.Para32[1]);
4249         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4250                 FromPort = Param.Para32[0];
4251                 ToPort = Param.Para32[1];
4252                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4253                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4254                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4255                 NewPara.Para64 = FromPort;
4256                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4257                 NewPara.Para64 = ToPort;
4258                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4259                 spin_lock_irqsave(
4260                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4261                         Flags);
4262                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4263                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4264                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4265                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4266                 spin_unlock_irqrestore(
4267                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4268                         Flags);
4269
4270                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4271                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4272
4273                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4274                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4275                 spin_lock_irqsave(
4276                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4277                         Flags);
4278                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4279                 pAC->ActivePort = ToPort;
4280 #if 0
4281                 SetQueueSizes(pAC);
4282 #else
4283                 /* tschilling: New common function with minimum size check. */
4284                 DualNet = SK_FALSE;
4285                 if (pAC->RlmtNets == 2) {
4286                         DualNet = SK_TRUE;
4287                 }
4288
4289                 if (SkGeInitAssignRamToQueues(
4290                         pAC,
4291                         pAC->ActivePort,
4292                         DualNet)) {
4293                         spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4294                         spin_unlock_irqrestore(
4295                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4296                                 Flags);
4297                         printk("SkGeInitAssignRamToQueues failed.\n");
4298                         break;
4299                 }
4300 #endif
4301                 /* tschilling: Handling of return values inserted. */
4302                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4303                         SkGeInitPort(pAC, IoC, ToPort)) {
4304                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4305                 }
4306                 if (Event == SK_DRV_SWITCH_SOFT) {
4307                         SkMacRxTxEnable(pAC, IoC, FromPort);
4308                 }
4309                 SkMacRxTxEnable(pAC, IoC, ToPort);
4310                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4311                 SkAddrMcUpdate(pAC, IoC, FromPort);
4312                 SkAddrMcUpdate(pAC, IoC, ToPort);
4313                 PortReInitBmu(pAC, FromPort);
4314                 PortReInitBmu(pAC, ToPort);
4315                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4316                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4317                 ClearAndStartRx(pAC, FromPort);
4318                 ClearAndStartRx(pAC, ToPort);
4319                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4320                 spin_unlock_irqrestore(
4321                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4322                         Flags);
4323                 break;
4324         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4325                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4326                         ("RLS "));
4327                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4328                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4329                 skb_put(pMsg, pRlmtMbuf->Length);
4330                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4331                         pMsg) < 0)
4332
4333                         DEV_KFREE_SKB_ANY(pMsg);
4334                 break;
4335         case SK_DRV_TIMER:
4336                 if (Param.Para32[0] == SK_DRV_MODERATION_TIMER) {
4337                         /*
4338                         ** expiration of the moderation timer implies that
4339                         ** dynamic moderation is to be applied
4340                         */
4341                         SkDimStartModerationTimer(pAC);
4342                         SkDimModerate(pAC);
4343                         if (pAC->DynIrqModInfo.DisplayStats) {
4344                             SkDimDisplayModerationSettings(pAC);
4345                         }
4346                 } else if (Param.Para32[0] == SK_DRV_RX_CLEANUP_TIMER) {
4347                         /*
4348                         ** check if we need to check for descriptors which
4349                         ** haven't been handled the last millisecs
4350                         */
4351                         StartDrvCleanupTimer(pAC);
4352                         if (pAC->GIni.GIMacsFound == 2) {
4353                                 ReceiveIrq(pAC, &pAC->RxPort[1], SK_FALSE);
4354                         }
4355                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_FALSE);
4356                 } else {
4357                         printk("Expiration of unknown timer\n");
4358                 }
4359                 break;
4360         default:
4361                 break;
4362         }
4363         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4364                 ("END EVENT "));
4365
4366         return (0);
4367 } /* SkDrvEvent */
4368
4369
4370 /*****************************************************************************
4371  *
4372  *      SkErrorLog - log errors
4373  *
4374  * Description:
4375  *      This function logs errors to the system buffer and to the console
4376  *
4377  * Returns:
4378  *      0 if everything ok
4379  *      < 0  on error
4380  *
4381  */
4382 void SkErrorLog(
4383 SK_AC   *pAC,
4384 int     ErrClass,
4385 int     ErrNum,
4386 char    *pErrorMsg)
4387 {
4388 char    ClassStr[80];
4389
4390         switch (ErrClass) {
4391         case SK_ERRCL_OTHER:
4392                 strcpy(ClassStr, "Other error");
4393                 break;
4394         case SK_ERRCL_CONFIG:
4395                 strcpy(ClassStr, "Configuration error");
4396                 break;
4397         case SK_ERRCL_INIT:
4398                 strcpy(ClassStr, "Initialization error");
4399                 break;
4400         case SK_ERRCL_NORES:
4401                 strcpy(ClassStr, "Out of resources error");
4402                 break;
4403         case SK_ERRCL_SW:
4404                 strcpy(ClassStr, "internal Software error");
4405                 break;
4406         case SK_ERRCL_HW:
4407                 strcpy(ClassStr, "Hardware failure");
4408                 break;
4409         case SK_ERRCL_COMM:
4410                 strcpy(ClassStr, "Communication error");
4411                 break;
4412         }
4413         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4414                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4415                 ClassStr, ErrNum, pErrorMsg);
4416
4417 } /* SkErrorLog */
4418
4419 #ifdef SK_DIAG_SUPPORT
4420
4421 /*****************************************************************************
4422  *
4423  *      SkDrvEnterDiagMode - handles DIAG attach request
4424  *
4425  * Description:
4426  *      Notify the kernel to NOT access the card any longer due to DIAG
4427  *      Deinitialize the Card
4428  *
4429  * Returns:
4430  *      int
4431  */
4432 int SkDrvEnterDiagMode(
4433 SK_AC   *pAc)   /* pointer to adapter context */
4434 {
4435         DEV_NET *pNet = netdev_priv(pAc->dev[0]);
4436         SK_AC   *pAC  = pNet->pAC;
4437
4438         SK_MEMCPY(&(pAc->PnmiBackup), &(pAc->PnmiStruct),
4439                         sizeof(SK_PNMI_STRUCT_DATA));
4440
4441         pAC->DiagModeActive = DIAG_ACTIVE;
4442         if (pAC->BoardLevel > SK_INIT_DATA) {
4443                 if (netif_running(pAC->dev[0])) {
4444                         pAC->WasIfUp[0] = SK_TRUE;
4445                         pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose      */
4446                         DoPrintInterfaceChange = SK_FALSE;
4447                         SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
4448                 } else {
4449                         pAC->WasIfUp[0] = SK_FALSE;
4450                 }
4451                 if (pNet != netdev_priv(pAC->dev[1])) {
4452                         pNet = netdev_priv(pAC->dev[1]);
4453                         if (netif_running(pAC->dev[1])) {
4454                                 pAC->WasIfUp[1] = SK_TRUE;
4455                                 pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4456                                 DoPrintInterfaceChange = SK_FALSE;
4457                                 SkDrvDeInitAdapter(pAC, 1);  /* do SkGeClose  */
4458                         } else {
4459                                 pAC->WasIfUp[1] = SK_FALSE;
4460                         }
4461                 }
4462                 pAC->BoardLevel = SK_INIT_DATA;
4463         }
4464         return(0);
4465 }
4466
4467 /*****************************************************************************
4468  *
4469  *      SkDrvLeaveDiagMode - handles DIAG detach request
4470  *
4471  * Description:
4472  *      Notify the kernel to may access the card again after use by DIAG
4473  *      Initialize the Card
4474  *
4475  * Returns:
4476  *      int
4477  */
4478 int SkDrvLeaveDiagMode(
4479 SK_AC   *pAc)   /* pointer to adapter control context */
4480 {
4481         SK_MEMCPY(&(pAc->PnmiStruct), &(pAc->PnmiBackup),
4482                         sizeof(SK_PNMI_STRUCT_DATA));
4483         pAc->DiagModeActive    = DIAG_NOTACTIVE;
4484         pAc->Pnmi.DiagAttached = SK_DIAG_IDLE;
4485         if (pAc->WasIfUp[0] == SK_TRUE) {
4486                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4487                 DoPrintInterfaceChange = SK_FALSE;
4488                 SkDrvInitAdapter(pAc, 0);    /* first device  */
4489         }
4490         if (pAc->WasIfUp[1] == SK_TRUE) {
4491                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4492                 DoPrintInterfaceChange = SK_FALSE;
4493                 SkDrvInitAdapter(pAc, 1);    /* second device */
4494         }
4495         return(0);
4496 }
4497
4498 /*****************************************************************************
4499  *
4500  *      ParseDeviceNbrFromSlotName - Evaluate PCI device number
4501  *
4502  * Description:
4503  *      This function parses the PCI slot name information string and will
4504  *      retrieve the devcie number out of it. The slot_name maintianed by
4505  *      linux is in the form of '02:0a.0', whereas the first two characters
4506  *      represent the bus number in hex (in the sample above this is
4507  *      pci bus 0x02) and the next two characters the device number (0x0a).
4508  *
4509  * Returns:
4510  *      SK_U32: The device number from the PCI slot name
4511  */
4512
4513 static SK_U32 ParseDeviceNbrFromSlotName(
4514 const char *SlotName)   /* pointer to pci slot name eg. '02:0a.0' */
4515 {
4516         char    *CurrCharPos    = (char *) SlotName;
4517         int     FirstNibble     = -1;
4518         int     SecondNibble    = -1;
4519         SK_U32  Result          =  0;
4520
4521         while (*CurrCharPos != '\0') {
4522                 if (*CurrCharPos == ':') {
4523                         while (*CurrCharPos != '.') {
4524                                 CurrCharPos++;
4525                                 if (    (*CurrCharPos >= '0') &&
4526                                         (*CurrCharPos <= '9')) {
4527                                         if (FirstNibble == -1) {
4528                                                 /* dec. value for '0' */
4529                                                 FirstNibble = *CurrCharPos - 48;
4530                                         } else {
4531                                                 SecondNibble = *CurrCharPos - 48;
4532                                         }
4533                                 } else if (     (*CurrCharPos >= 'a') &&
4534                                                 (*CurrCharPos <= 'f')  ) {
4535                                         if (FirstNibble == -1) {
4536                                                 FirstNibble = *CurrCharPos - 87;
4537                                         } else {
4538                                                 SecondNibble = *CurrCharPos - 87;
4539                                         }
4540                                 } else {
4541                                         Result = 0;
4542                                 }
4543                         }
4544
4545                         Result = FirstNibble;
4546                         Result = Result << 4; /* first nibble is higher one */
4547                         Result = Result | SecondNibble;
4548                 }
4549                 CurrCharPos++;   /* next character */
4550         }
4551         return (Result);
4552 }
4553
4554 /****************************************************************************
4555  *
4556  *      SkDrvDeInitAdapter - deinitialize adapter (this function is only
4557  *                              called if Diag attaches to that card)
4558  *
4559  * Description:
4560  *      Close initialized adapter.
4561  *
4562  * Returns:
4563  *      0 - on success
4564  *      error code - on error
4565  */
4566 static int SkDrvDeInitAdapter(
4567 SK_AC   *pAC,           /* pointer to adapter context   */
4568 int      devNbr)        /* what device is to be handled */
4569 {
4570         struct SK_NET_DEVICE *dev;
4571
4572         dev = pAC->dev[devNbr];
4573
4574         /* On Linux 2.6 the network driver does NOT mess with reference
4575         ** counts.  The driver MUST be able to be unloaded at any time
4576         ** due to the possibility of hotplug.
4577         */
4578         if (SkGeClose(dev) != 0) {
4579                 return (-1);
4580         }
4581         return (0);
4582
4583 } /* SkDrvDeInitAdapter() */
4584
4585 /****************************************************************************
4586  *
4587  *      SkDrvInitAdapter - Initialize adapter (this function is only
4588  *                              called if Diag deattaches from that card)
4589  *
4590  * Description:
4591  *      Close initialized adapter.
4592  *
4593  * Returns:
4594  *      0 - on success
4595  *      error code - on error
4596  */
4597 static int SkDrvInitAdapter(
4598 SK_AC   *pAC,           /* pointer to adapter context   */
4599 int      devNbr)        /* what device is to be handled */
4600 {
4601         struct SK_NET_DEVICE *dev;
4602
4603         dev = pAC->dev[devNbr];
4604
4605         if (SkGeOpen(dev) != 0) {
4606                 return (-1);
4607         }
4608
4609         /*
4610         ** Use correct MTU size and indicate to kernel TX queue can be started
4611         */
4612         if (SkGeChangeMtu(dev, dev->mtu) != 0) {
4613                 return (-1);
4614         }
4615         return (0);
4616
4617 } /* SkDrvInitAdapter */
4618
4619 #endif
4620
4621 #ifdef DEBUG
4622 /****************************************************************************/
4623 /* "debug only" section *****************************************************/
4624 /****************************************************************************/
4625
4626
4627 /*****************************************************************************
4628  *
4629  *      DumpMsg - print a frame
4630  *
4631  * Description:
4632  *      This function prints frames to the system logfile/to the console.
4633  *
4634  * Returns: N/A
4635  *
4636  */
4637 static void DumpMsg(struct sk_buff *skb, char *str)
4638 {
4639         int     msglen;
4640
4641         if (skb == NULL) {
4642                 printk("DumpMsg(): NULL-Message\n");
4643                 return;
4644         }
4645
4646         if (skb->data == NULL) {
4647                 printk("DumpMsg(): Message empty\n");
4648                 return;
4649         }
4650
4651         msglen = skb->len;
4652         if (msglen > 64)
4653                 msglen = 64;
4654
4655         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4656
4657         DumpData((char *)skb->data, msglen);
4658
4659         printk("------- End of message ---------\n");
4660 } /* DumpMsg */
4661
4662
4663
4664 /*****************************************************************************
4665  *
4666  *      DumpData - print a data area
4667  *
4668  * Description:
4669  *      This function prints a area of data to the system logfile/to the
4670  *      console.
4671  *
4672  * Returns: N/A
4673  *
4674  */
4675 static void DumpData(char *p, int size)
4676 {
4677 register int    i;
4678 int     haddr, addr;
4679 char    hex_buffer[180];
4680 char    asc_buffer[180];
4681 char    HEXCHAR[] = "0123456789ABCDEF";
4682
4683         addr = 0;
4684         haddr = 0;
4685         hex_buffer[0] = 0;
4686         asc_buffer[0] = 0;
4687         for (i=0; i < size; ) {
4688                 if (*p >= '0' && *p <='z')
4689                         asc_buffer[addr] = *p;
4690                 else
4691                         asc_buffer[addr] = '.';
4692                 addr++;
4693                 asc_buffer[addr] = 0;
4694                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4695                 haddr++;
4696                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4697                 haddr++;
4698                 hex_buffer[haddr] = ' ';
4699                 haddr++;
4700                 hex_buffer[haddr] = 0;
4701                 p++;
4702                 i++;
4703                 if (i%16 == 0) {
4704                         printk("%s  %s\n", hex_buffer, asc_buffer);
4705                         addr = 0;
4706                         haddr = 0;
4707                 }
4708         }
4709 } /* DumpData */
4710
4711
4712 /*****************************************************************************
4713  *
4714  *      DumpLong - print a data area as long values
4715  *
4716  * Description:
4717  *      This function prints a area of data to the system logfile/to the
4718  *      console.
4719  *
4720  * Returns: N/A
4721  *
4722  */
4723 static void DumpLong(char *pc, int size)
4724 {
4725 register int    i;
4726 int     haddr, addr;
4727 char    hex_buffer[180];
4728 char    asc_buffer[180];
4729 char    HEXCHAR[] = "0123456789ABCDEF";
4730 long    *p;
4731 int     l;
4732
4733         addr = 0;
4734         haddr = 0;
4735         hex_buffer[0] = 0;
4736         asc_buffer[0] = 0;
4737         p = (long*) pc;
4738         for (i=0; i < size; ) {
4739                 l = (long) *p;
4740                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4741                 haddr++;
4742                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4743                 haddr++;
4744                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4745                 haddr++;
4746                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4747                 haddr++;
4748                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4749                 haddr++;
4750                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4751                 haddr++;
4752                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4753                 haddr++;
4754                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4755                 haddr++;
4756                 hex_buffer[haddr] = ' ';
4757                 haddr++;
4758                 hex_buffer[haddr] = 0;
4759                 p++;
4760                 i++;
4761                 if (i%8 == 0) {
4762                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4763                         haddr = 0;
4764                 }
4765         }
4766         printk("------------------------\n");
4767 } /* DumpLong */
4768
4769 #endif
4770
4771 static int __devinit skge_probe_one(struct pci_dev *pdev,
4772                 const struct pci_device_id *ent)
4773 {
4774         SK_AC                   *pAC;
4775         DEV_NET                 *pNet = NULL;
4776         struct net_device       *dev = NULL;
4777         static int boards_found = 0;
4778         int error = -ENODEV;
4779         char DeviceStr[80];
4780
4781         if (pci_enable_device(pdev))
4782                 goto out;
4783
4784         /* Configure DMA attributes. */
4785         if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
4786             pci_set_dma_mask(pdev, DMA_32BIT_MASK))
4787                 goto out_disable_device;
4788
4789
4790         if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) {
4791                 printk(KERN_ERR "Unable to allocate etherdev "
4792                        "structure!\n");
4793                 goto out_disable_device;
4794         }
4795
4796         pNet = netdev_priv(dev);
4797         pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
4798         if (!pNet->pAC) {
4799                 printk(KERN_ERR "Unable to allocate adapter "
4800                        "structure!\n");
4801                 goto out_free_netdev;
4802         }
4803
4804         memset(pNet->pAC, 0, sizeof(SK_AC));
4805         pAC = pNet->pAC;
4806         pAC->PciDev = pdev;
4807
4808         pAC->dev[0] = dev;
4809         pAC->dev[1] = dev;
4810         pAC->CheckQueue = SK_FALSE;
4811
4812         dev->irq = pdev->irq;
4813         error = SkGeInitPCI(pAC);
4814         if (error) {
4815                 printk(KERN_ERR "sk98lin: PCI setup failed: %i\n", error);
4816                 goto out_free_netdev;
4817         }
4818
4819         SET_MODULE_OWNER(dev);
4820         dev->open =             &SkGeOpen;
4821         dev->stop =             &SkGeClose;
4822         dev->hard_start_xmit =  &SkGeXmit;
4823         dev->get_stats =        &SkGeStats;
4824         dev->set_multicast_list = &SkGeSetRxMode;
4825         dev->set_mac_address =  &SkGeSetMacAddr;
4826         dev->do_ioctl =         &SkGeIoctl;
4827         dev->change_mtu =       &SkGeChangeMtu;
4828 #ifdef CONFIG_NET_POLL_CONTROLLER
4829         dev->poll_controller =  &SkGePollController;
4830 #endif
4831         SET_NETDEV_DEV(dev, &pdev->dev);
4832         SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4833
4834         /* Use only if yukon hardware */
4835         if (pAC->ChipsetType) {
4836 #ifdef USE_SK_TX_CHECKSUM
4837                 dev->features |= NETIF_F_IP_CSUM;
4838 #endif
4839 #ifdef SK_ZEROCOPY
4840                 dev->features |= NETIF_F_SG;
4841 #endif
4842 #ifdef USE_SK_RX_CHECKSUM
4843                 pAC->RxPort[0].RxCsum = 1;
4844 #endif
4845         }
4846
4847         pAC->Index = boards_found++;
4848
4849         if (SkGeBoardInit(dev, pAC))
4850                 goto out_free_netdev;
4851
4852         /* Read Adapter name from VPD */
4853         if (ProductStr(pAC, DeviceStr, sizeof(DeviceStr)) != 0) {
4854                 printk(KERN_ERR "sk98lin: Could not read VPD data.\n");
4855                 goto out_free_resources;
4856         }
4857
4858         /* Register net device */
4859         if (register_netdev(dev)) {
4860                 printk(KERN_ERR "sk98lin: Could not register device.\n");
4861                 goto out_free_resources;
4862         }
4863
4864         /* Print adapter specific string from vpd */
4865         printk("%s: %s\n", dev->name, DeviceStr);
4866
4867         /* Print configuration settings */
4868         printk("      PrefPort:%c  RlmtMode:%s\n",
4869                 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
4870                 (pAC->RlmtMode==0)  ? "Check Link State" :
4871                 ((pAC->RlmtMode==1) ? "Check Link State" :
4872                 ((pAC->RlmtMode==3) ? "Check Local Port" :
4873                 ((pAC->RlmtMode==7) ? "Check Segmentation" :
4874                 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
4875
4876         SkGeYellowLED(pAC, pAC->IoBase, 1);
4877
4878         memcpy(&dev->dev_addr, &pAC->Addr.Net[0].CurrentMacAddress, 6);
4879         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4880
4881         pNet->PortNr = 0;
4882         pNet->NetNr  = 0;
4883
4884         boards_found++;
4885
4886         /* More then one port found */
4887         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
4888                 if ((dev = alloc_etherdev(sizeof(DEV_NET))) == 0) {
4889                         printk(KERN_ERR "Unable to allocate etherdev "
4890                                 "structure!\n");
4891                         goto out;
4892                 }
4893
4894                 pAC->dev[1]   = dev;
4895                 pNet          = netdev_priv(dev);
4896                 pNet->PortNr  = 1;
4897                 pNet->NetNr   = 1;
4898                 pNet->pAC     = pAC;
4899
4900                 dev->open               = &SkGeOpen;
4901                 dev->stop               = &SkGeClose;
4902                 dev->hard_start_xmit    = &SkGeXmit;
4903                 dev->get_stats          = &SkGeStats;
4904                 dev->set_multicast_list = &SkGeSetRxMode;
4905                 dev->set_mac_address    = &SkGeSetMacAddr;
4906                 dev->do_ioctl           = &SkGeIoctl;
4907                 dev->change_mtu         = &SkGeChangeMtu;
4908                 SET_NETDEV_DEV(dev, &pdev->dev);
4909                 SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4910
4911                 if (pAC->ChipsetType) {
4912 #ifdef USE_SK_TX_CHECKSUM
4913                         dev->features |= NETIF_F_IP_CSUM;
4914 #endif
4915 #ifdef SK_ZEROCOPY
4916                         dev->features |= NETIF_F_SG;
4917 #endif
4918 #ifdef USE_SK_RX_CHECKSUM
4919                         pAC->RxPort[1].RxCsum = 1;
4920 #endif
4921                 }
4922
4923                 if (register_netdev(dev)) {
4924                         printk(KERN_ERR "sk98lin: Could not register device for seconf port.\n");
4925                         free_netdev(dev);
4926                         pAC->dev[1] = pAC->dev[0];
4927                 } else {
4928                         memcpy(&dev->dev_addr,
4929                                         &pAC->Addr.Net[1].CurrentMacAddress, 6);
4930                         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4931
4932                         printk("%s: %s\n", dev->name, DeviceStr);
4933                         printk("      PrefPort:B  RlmtMode:Dual Check Link State\n");
4934                 }
4935         }
4936
4937         /* Save the hardware revision */
4938         pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
4939                 (pAC->GIni.GIPciHwRev & 0x0F);
4940
4941         /* Set driver globals */
4942         pAC->Pnmi.pDriverFileName    = DRIVER_FILE_NAME;
4943         pAC->Pnmi.pDriverReleaseDate = DRIVER_REL_DATE;
4944
4945         memset(&pAC->PnmiBackup, 0, sizeof(SK_PNMI_STRUCT_DATA));
4946         memcpy(&pAC->PnmiBackup, &pAC->PnmiStruct, sizeof(SK_PNMI_STRUCT_DATA));
4947
4948         pci_set_drvdata(pdev, dev);
4949         return 0;
4950
4951  out_free_resources:
4952         FreeResources(dev);
4953  out_free_netdev:
4954         free_netdev(dev);
4955  out_disable_device:
4956         pci_disable_device(pdev);
4957  out:
4958         return error;
4959 }
4960
4961 static void __devexit skge_remove_one(struct pci_dev *pdev)
4962 {
4963         struct net_device *dev = pci_get_drvdata(pdev);
4964         DEV_NET *pNet = netdev_priv(dev);
4965         SK_AC *pAC = pNet->pAC;
4966         struct net_device *otherdev = pAC->dev[1];
4967
4968         unregister_netdev(dev);
4969
4970         SkGeYellowLED(pAC, pAC->IoBase, 0);
4971
4972         if (pAC->BoardLevel == SK_INIT_RUN) {
4973                 SK_EVPARA EvPara;
4974                 unsigned long Flags;
4975
4976                 /* board is still alive */
4977                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
4978                 EvPara.Para32[0] = 0;
4979                 EvPara.Para32[1] = -1;
4980                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
4981                 EvPara.Para32[0] = 1;
4982                 EvPara.Para32[1] = -1;
4983                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
4984                 SkEventDispatcher(pAC, pAC->IoBase);
4985                 /* disable interrupts */
4986                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4987                 SkGeDeInit(pAC, pAC->IoBase);
4988                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
4989                 pAC->BoardLevel = SK_INIT_DATA;
4990                 /* We do NOT check here, if IRQ was pending, of course*/
4991         }
4992
4993         if (pAC->BoardLevel == SK_INIT_IO) {
4994                 /* board is still alive */
4995                 SkGeDeInit(pAC, pAC->IoBase);
4996                 pAC->BoardLevel = SK_INIT_DATA;
4997         }
4998
4999         FreeResources(dev);
5000         free_netdev(dev);
5001         if (otherdev != dev)
5002                 free_netdev(otherdev);
5003         kfree(pAC);
5004 }
5005
5006 #ifdef CONFIG_PM
5007 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
5008 {
5009         struct net_device *dev = pci_get_drvdata(pdev);
5010         DEV_NET *pNet = netdev_priv(dev);
5011         SK_AC *pAC = pNet->pAC;
5012         struct net_device *otherdev = pAC->dev[1];
5013
5014         if (netif_running(dev)) {
5015                 netif_carrier_off(dev);
5016                 DoPrintInterfaceChange = SK_FALSE;
5017                 SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
5018                 netif_device_detach(dev);
5019         }
5020         if (otherdev != dev) {
5021                 if (netif_running(otherdev)) {
5022                         netif_carrier_off(otherdev);
5023                         DoPrintInterfaceChange = SK_FALSE;
5024                         SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
5025                         netif_device_detach(otherdev);
5026                 }
5027         }
5028
5029         pci_save_state(pdev);
5030         pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
5031         if (pAC->AllocFlag & SK_ALLOC_IRQ) {
5032                 free_irq(dev->irq, dev);
5033         }
5034         pci_disable_device(pdev);
5035         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5036
5037         return 0;
5038 }
5039
5040 static int skge_resume(struct pci_dev *pdev)
5041 {
5042         struct net_device *dev = pci_get_drvdata(pdev);
5043         DEV_NET *pNet = netdev_priv(dev);
5044         SK_AC *pAC = pNet->pAC;
5045         struct net_device *otherdev = pAC->dev[1];
5046         int ret;
5047
5048         pci_set_power_state(pdev, PCI_D0);
5049         pci_restore_state(pdev);
5050         pci_enable_device(pdev);
5051         pci_set_master(pdev);
5052         if (pAC->GIni.GIMacsFound == 2)
5053                 ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, "sk98lin", dev);
5054         else
5055                 ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, "sk98lin", dev);
5056         if (ret) {
5057                 printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
5058                 pAC->AllocFlag &= ~SK_ALLOC_IRQ;
5059                 dev->irq = 0;
5060                 pci_disable_device(pdev);
5061                 return -EBUSY;
5062         }
5063
5064         netif_device_attach(dev);
5065         if (netif_running(dev)) {
5066                 DoPrintInterfaceChange = SK_FALSE;
5067                 SkDrvInitAdapter(pAC, 0);    /* first device  */
5068         }
5069         if (otherdev != dev) {
5070                 netif_device_attach(otherdev);
5071                 if (netif_running(otherdev)) {
5072                         DoPrintInterfaceChange = SK_FALSE;
5073                         SkDrvInitAdapter(pAC, 1);    /* second device  */
5074                 }
5075         }
5076
5077         return 0;
5078 }
5079 #else
5080 #define skge_suspend NULL
5081 #define skge_resume NULL
5082 #endif
5083
5084 static struct pci_device_id skge_pci_tbl[] = {
5085         { PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5086         { PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5087         { PCI_VENDOR_ID_SYSKONNECT, 0x4300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5088         { PCI_VENDOR_ID_SYSKONNECT, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5089 /* DLink card does not have valid VPD so this driver gags
5090  *      { PCI_VENDOR_ID_DLINK, 0x4c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5091  */
5092         { PCI_VENDOR_ID_MARVELL, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5093         { PCI_VENDOR_ID_MARVELL, 0x5005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5094         { PCI_VENDOR_ID_CNET, 0x434e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5095         { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
5096         { PCI_VENDOR_ID_LINKSYS, 0x1064, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5097         { 0 }
5098 };
5099
5100 MODULE_DEVICE_TABLE(pci, skge_pci_tbl);
5101
5102 static struct pci_driver skge_driver = {
5103         .name           = "sk98lin",
5104         .id_table       = skge_pci_tbl,
5105         .probe          = skge_probe_one,
5106         .remove         = __devexit_p(skge_remove_one),
5107         .suspend        = skge_suspend,
5108         .resume         = skge_resume,
5109 };
5110
5111 static int __init skge_init(void)
5112 {
5113         return pci_module_init(&skge_driver);
5114 }
5115
5116 static void __exit skge_exit(void)
5117 {
5118         pci_unregister_driver(&skge_driver);
5119 }
5120
5121 module_init(skge_init);
5122 module_exit(skge_exit);