git.oblomov.eu Git - linux-2.6/blob - 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 #include        <linux/mii.h>
 117 #include        <linux/mm.h>
 118
 119 #include        "h/skdrv1st.h"
 120 #include        "h/skdrv2nd.h"
 121
 122 /*******************************************************************************
 123  *
 124  * Defines
 125  *
 126  ******************************************************************************/
 127
 128 /* for debuging on x86 only */
 129 /* #define BREAKPOINT() asm(" int $3"); */
 130
 131 /* use the transmit hw checksum driver functionality */
 132 #define USE_SK_TX_CHECKSUM
 133
 134 /* use the receive hw checksum driver functionality */
 135 #define USE_SK_RX_CHECKSUM
 136
 137 /* use the scatter-gather functionality with sendfile() */
 138 #define SK_ZEROCOPY
 139
 140 /* use of a transmit complete interrupt */
 141 #define USE_TX_COMPLETE
 142
 143 /*
 144  * threshold for copying small receive frames
 145  * set to 0 to avoid copying, set to 9001 to copy all frames
 146  */
 147 #define SK_COPY_THRESHOLD       50
 148
 149 /* number of adapters that can be configured via command line params */
 150 #define SK_MAX_CARD_PARAM       16
 151
 152
 153
 154 /*
 155  * use those defines for a compile-in version of the driver instead
 156  * of command line parameters
 157  */
 158 // #define LINK_SPEED_A {"Auto", }
 159 // #define LINK_SPEED_B {"Auto", }
 160 // #define AUTO_NEG_A   {"Sense", }
 161 // #define AUTO_NEG_B   {"Sense", }
 162 // #define DUP_CAP_A    {"Both", }
 163 // #define DUP_CAP_B    {"Both", }
 164 // #define FLOW_CTRL_A  {"SymOrRem", }
 165 // #define FLOW_CTRL_B  {"SymOrRem", }
 166 // #define ROLE_A       {"Auto", }
 167 // #define ROLE_B       {"Auto", }
 168 // #define PREF_PORT    {"A", }
 169 // #define CON_TYPE     {"Auto", }
 170 // #define RLMT_MODE    {"CheckLinkState", }
 171
 172 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
 173 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
 174 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
 175
 176
 177 /* Set blink mode*/
 178 #define OEM_CONFIG_VALUE (      SK_ACT_LED_BLINK | \
 179                                 SK_DUP_LED_NORMAL | \
 180                                 SK_LED_LINK100_ON)
 181
 182
 183 /* Isr return value */
 184 #define SkIsrRetVar     irqreturn_t
 185 #define SkIsrRetNone    IRQ_NONE
 186 #define SkIsrRetHandled IRQ_HANDLED
 187
 188
 189 /*******************************************************************************
 190  *
 191  * Local Function Prototypes
 192  *
 193  ******************************************************************************/
 194
 195 static void     FreeResources(struct SK_NET_DEVICE *dev);
 196 static int      SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
 197 static SK_BOOL  BoardAllocMem(SK_AC *pAC);
 198 static void     BoardFreeMem(SK_AC *pAC);
 199 static void     BoardInitMem(SK_AC *pAC);
 200 static void     SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, int*, SK_BOOL);
 201 static SkIsrRetVar      SkGeIsr(int irq, void *dev_id);
 202 static SkIsrRetVar      SkGeIsrOnePort(int irq, void *dev_id);
 203 static int      SkGeOpen(struct SK_NET_DEVICE *dev);
 204 static int      SkGeClose(struct SK_NET_DEVICE *dev);
 205 static int      SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 206 static int      SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
 207 static void     SkGeSetRxMode(struct SK_NET_DEVICE *dev);
 208 static struct   net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
 209 static int      SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
 210 static void     GetConfiguration(SK_AC*);
 211 static int      XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
 212 static void     FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
 213 static void     FillRxRing(SK_AC*, RX_PORT*);
 214 static SK_BOOL  FillRxDescriptor(SK_AC*, RX_PORT*);
 215 static void     ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
 216 static void     ClearAndStartRx(SK_AC*, int);
 217 static void     ClearTxIrq(SK_AC*, int, int);
 218 static void     ClearRxRing(SK_AC*, RX_PORT*);
 219 static void     ClearTxRing(SK_AC*, TX_PORT*);
 220 static int      SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
 221 static void     PortReInitBmu(SK_AC*, int);
 222 static int      SkGeIocMib(DEV_NET*, unsigned int, int);
 223 static int      SkGeInitPCI(SK_AC *pAC);
 224 static void     StartDrvCleanupTimer(SK_AC *pAC);
 225 static void     StopDrvCleanupTimer(SK_AC *pAC);
 226 static int      XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
 227
 228 #ifdef SK_DIAG_SUPPORT
 229 static SK_U32   ParseDeviceNbrFromSlotName(const char *SlotName);
 230 static int      SkDrvInitAdapter(SK_AC *pAC, int devNbr);
 231 static int      SkDrvDeInitAdapter(SK_AC *pAC, int devNbr);
 232 #endif
 233
 234 /*******************************************************************************
 235  *
 236  * Extern Function Prototypes
 237  *
 238  ******************************************************************************/
 239 extern void SkDimEnableModerationIfNeeded(SK_AC *pAC);
 240 extern void SkDimDisplayModerationSettings(SK_AC *pAC);
 241 extern void SkDimStartModerationTimer(SK_AC *pAC);
 242 extern void SkDimModerate(SK_AC *pAC);
 243 extern void SkGeBlinkTimer(unsigned long data);
 244
 245 #ifdef DEBUG
 246 static void     DumpMsg(struct sk_buff*, char*);
 247 static void     DumpData(char*, int);
 248 static void     DumpLong(char*, int);
 249 #endif
 250
 251 /* global variables *********************************************************/
 252 static SK_BOOL DoPrintInterfaceChange = SK_TRUE;
 253 extern const struct ethtool_ops SkGeEthtoolOps;
 254
 255 /* local variables **********************************************************/
 256 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
 257 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
 258
 259 /*****************************************************************************
 260  *
 261  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
 262  *
 263  * Description:
 264  *      This routine writes a 32 bit value to the pci configuration
 265  *      space.
 266  *
 267  * Returns:
 268  *      0 - indicate everything worked ok.
 269  *      != 0 - error indication
 270  */
 271 static inline int SkPciWriteCfgDWord(
 272 SK_AC *pAC,     /* Adapter Control structure pointer */
 273 int PciAddr,            /* PCI register address */
 274 SK_U32 Val)             /* pointer to store the read value */
 275 {
 276         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
 277         return(0);
 278 } /* SkPciWriteCfgDWord */
 279
 280 /*****************************************************************************
 281  *
 282  *      SkGeInitPCI - Init the PCI resources
 283  *
 284  * Description:
 285  *      This function initialize the PCI resources and IO
 286  *
 287  * Returns:
 288  *      0 - indicate everything worked ok.
 289  *      != 0 - error indication
 290  */
 291 static __devinit int SkGeInitPCI(SK_AC *pAC)
 292 {
 293         struct SK_NET_DEVICE *dev = pAC->dev[0];
 294         struct pci_dev *pdev = pAC->PciDev;
 295         int retval;
 296
 297         dev->mem_start = pci_resource_start (pdev, 0);
 298         pci_set_master(pdev);
 299
 300         retval = pci_request_regions(pdev, "sk98lin");
 301         if (retval)
 302                 goto out;
 303
 304 #ifdef SK_BIG_ENDIAN
 305         /*
 306          * On big endian machines, we use the adapter's aibility of
 307          * reading the descriptors as big endian.
 308          */
 309         {
 310                 SK_U32          our2;
 311                 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
 312                 our2 |= PCI_REV_DESC;
 313                 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
 314         }
 315 #endif
 316
 317         /*
 318          * Remap the regs into kernel space.
 319          */
 320         pAC->IoBase = ioremap_nocache(dev->mem_start, 0x4000);
 321         if (!pAC->IoBase) {
 322                 retval = -EIO;
 323                 goto out_release;
 324         }
 325
 326         return 0;
 327
 328  out_release:
 329         pci_release_regions(pdev);
 330  out:
 331         return retval;
 332 }
 333
 334
 335 /*****************************************************************************
 336  *
 337  *      FreeResources - release resources allocated for adapter
 338  *
 339  * Description:
 340  *      This function releases the IRQ, unmaps the IO and
 341  *      frees the desriptor ring.
 342  *
 343  * Returns: N/A
 344  *
 345  */
 346 static void FreeResources(struct SK_NET_DEVICE *dev)
 347 {
 348 SK_U32 AllocFlag;
 349 DEV_NET         *pNet;
 350 SK_AC           *pAC;
 351
 352         pNet = netdev_priv(dev);
 353         pAC = pNet->pAC;
 354         AllocFlag = pAC->AllocFlag;
 355         if (pAC->PciDev) {
 356                 pci_release_regions(pAC->PciDev);
 357         }
 358         if (AllocFlag & SK_ALLOC_IRQ) {
 359                 free_irq(dev->irq, dev);
 360         }
 361         if (pAC->IoBase) {
 362                 iounmap(pAC->IoBase);
 363         }
 364         if (pAC->pDescrMem) {
 365                 BoardFreeMem(pAC);
 366         }
 367
 368 } /* FreeResources */
 369
 370 MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
 371 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
 372 MODULE_LICENSE("GPL");
 373
 374 #ifdef LINK_SPEED_A
 375 static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED;
 376 #else
 377 static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
 378 #endif
 379
 380 #ifdef LINK_SPEED_B
 381 static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED;
 382 #else
 383 static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
 384 #endif
 385
 386 #ifdef AUTO_NEG_A
 387 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
 388 #else
 389 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
 390 #endif
 391
 392 #ifdef DUP_CAP_A
 393 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
 394 #else
 395 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
 396 #endif
 397
 398 #ifdef FLOW_CTRL_A
 399 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
 400 #else
 401 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
 402 #endif
 403
 404 #ifdef ROLE_A
 405 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
 406 #else
 407 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
 408 #endif
 409
 410 #ifdef AUTO_NEG_B
 411 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
 412 #else
 413 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
 414 #endif
 415
 416 #ifdef DUP_CAP_B
 417 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
 418 #else
 419 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
 420 #endif
 421
 422 #ifdef FLOW_CTRL_B
 423 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
 424 #else
 425 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
 426 #endif
 427
 428 #ifdef ROLE_B
 429 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
 430 #else
 431 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
 432 #endif
 433
 434 #ifdef CON_TYPE
 435 static char *ConType[SK_MAX_CARD_PARAM] = CON_TYPE;
 436 #else
 437 static char *ConType[SK_MAX_CARD_PARAM] = {"", };
 438 #endif
 439
 440 #ifdef PREF_PORT
 441 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
 442 #else
 443 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
 444 #endif
 445
 446 #ifdef RLMT_MODE
 447 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
 448 #else
 449 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
 450 #endif
 451
 452 static int   IntsPerSec[SK_MAX_CARD_PARAM];
 453 static char *Moderation[SK_MAX_CARD_PARAM];
 454 static char *ModerationMask[SK_MAX_CARD_PARAM];
 455 static char *AutoSizing[SK_MAX_CARD_PARAM];
 456 static char *Stats[SK_MAX_CARD_PARAM];
 457
 458 module_param_array(Speed_A, charp, NULL, 0);
 459 module_param_array(Speed_B, charp, NULL, 0);
 460 module_param_array(AutoNeg_A, charp, NULL, 0);
 461 module_param_array(AutoNeg_B, charp, NULL, 0);
 462 module_param_array(DupCap_A, charp, NULL, 0);
 463 module_param_array(DupCap_B, charp, NULL, 0);
 464 module_param_array(FlowCtrl_A, charp, NULL, 0);
 465 module_param_array(FlowCtrl_B, charp, NULL, 0);
 466 module_param_array(Role_A, charp, NULL, 0);
 467 module_param_array(Role_B, charp, NULL, 0);
 468 module_param_array(ConType, charp, NULL, 0);
 469 module_param_array(PrefPort, charp, NULL, 0);
 470 module_param_array(RlmtMode, charp, NULL, 0);
 471 /* used for interrupt moderation */
 472 module_param_array(IntsPerSec, int, NULL, 0);
 473 module_param_array(Moderation, charp, NULL, 0);
 474 module_param_array(Stats, charp, NULL, 0);
 475 module_param_array(ModerationMask, charp, NULL, 0);
 476 module_param_array(AutoSizing, charp, NULL, 0);
 477
 478 /*****************************************************************************
 479  *
 480  *      SkGeBoardInit - do level 0 and 1 initialization
 481  *
 482  * Description:
 483  *      This function prepares the board hardware for running. The desriptor
 484  *      ring is set up, the IRQ is allocated and the configuration settings
 485  *      are examined.
 486  *
 487  * Returns:
 488  *      0, if everything is ok
 489  *      !=0, on error
 490  */
 491 static int __devinit SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
 492 {
 493 short   i;
 494 unsigned long Flags;
 495 char    *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
 496 char    *VerStr = VER_STRING;
 497 int     Ret;                    /* return code of request_irq */
 498 SK_BOOL DualNet;
 499
 500         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 501                 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
 502         for (i=0; i<SK_MAX_MACS; i++) {
 503                 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
 504                 pAC->TxPort[i][0].PortIndex = i;
 505                 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
 506                 pAC->RxPort[i].PortIndex = i;
 507         }
 508
 509         /* Initialize the mutexes */
 510         for (i=0; i<SK_MAX_MACS; i++) {
 511                 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
 512                 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
 513         }
 514         spin_lock_init(&pAC->SlowPathLock);
 515
 516         /* setup phy_id blink timer */
 517         pAC->BlinkTimer.function = SkGeBlinkTimer;
 518         pAC->BlinkTimer.data = (unsigned long) dev;
 519         init_timer(&pAC->BlinkTimer);
 520
 521         /* level 0 init common modules here */
 522
 523         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 524         /* Does a RESET on board ...*/
 525         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) {
 526                 printk("HWInit (0) failed.\n");
 527                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 528                 return -EIO;
 529         }
 530         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_DATA);
 531         SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA);
 532         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_DATA);
 533         SkAddrInit( pAC, pAC->IoBase, SK_INIT_DATA);
 534         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_DATA);
 535         SkTimerInit(pAC, pAC->IoBase, SK_INIT_DATA);
 536
 537         pAC->BoardLevel = SK_INIT_DATA;
 538         pAC->RxBufSize  = ETH_BUF_SIZE;
 539
 540         SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
 541         SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
 542
 543         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 544
 545         /* level 1 init common modules here (HW init) */
 546         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 547         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
 548                 printk("sk98lin: HWInit (1) failed.\n");
 549                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 550                 return -EIO;
 551         }
 552         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
 553         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
 554         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
 555         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
 556         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
 557         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
 558
 559         /* Set chipset type support */
 560         pAC->ChipsetType = 0;
 561         if ((pAC->GIni.GIChipId == CHIP_ID_YUKON) ||
 562                 (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE)) {
 563                 pAC->ChipsetType = 1;
 564         }
 565
 566         GetConfiguration(pAC);
 567         if (pAC->RlmtNets == 2) {
 568                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
 569         }
 570
 571         pAC->BoardLevel = SK_INIT_IO;
 572         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 573
 574         if (pAC->GIni.GIMacsFound == 2) {
 575                  Ret = request_irq(dev->irq, SkGeIsr, IRQF_SHARED, "sk98lin", dev);
 576         } else if (pAC->GIni.GIMacsFound == 1) {
 577                 Ret = request_irq(dev->irq, SkGeIsrOnePort, IRQF_SHARED,
 578                         "sk98lin", dev);
 579         } else {
 580                 printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n",
 581                        pAC->GIni.GIMacsFound);
 582                 return -EIO;
 583         }
 584
 585         if (Ret) {
 586                 printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n",
 587                        dev->irq);
 588                 return Ret;
 589         }
 590         pAC->AllocFlag |= SK_ALLOC_IRQ;
 591
 592         /* Alloc memory for this board (Mem for RxD/TxD) : */
 593         if(!BoardAllocMem(pAC)) {
 594                 printk("No memory for descriptor rings.\n");
 595                 return -ENOMEM;
 596         }
 597
 598         BoardInitMem(pAC);
 599         /* tschilling: New common function with minimum size check. */
 600         DualNet = SK_FALSE;
 601         if (pAC->RlmtNets == 2) {
 602                 DualNet = SK_TRUE;
 603         }
 604
 605         if (SkGeInitAssignRamToQueues(
 606                 pAC,
 607                 pAC->ActivePort,
 608                 DualNet)) {
 609                 BoardFreeMem(pAC);
 610                 printk("sk98lin: SkGeInitAssignRamToQueues failed.\n");
 611                 return -EIO;
 612         }
 613
 614         return (0);
 615 } /* SkGeBoardInit */
 616
 617
 618 /*****************************************************************************
 619  *
 620  *      BoardAllocMem - allocate the memory for the descriptor rings
 621  *
 622  * Description:
 623  *      This function allocates the memory for all descriptor rings.
 624  *      Each ring is aligned for the desriptor alignment and no ring
 625  *      has a 4 GByte boundary in it (because the upper 32 bit must
 626  *      be constant for all descriptiors in one rings).
 627  *
 628  * Returns:
 629  *      SK_TRUE, if all memory could be allocated
 630  *      SK_FALSE, if not
 631  */
 632 static __devinit SK_BOOL BoardAllocMem(SK_AC    *pAC)
 633 {
 634 caddr_t         pDescrMem;      /* pointer to descriptor memory area */
 635 size_t          AllocLength;    /* length of complete descriptor area */
 636 int             i;              /* loop counter */
 637 unsigned long   BusAddr;
 638
 639
 640         /* rings plus one for alignment (do not cross 4 GB boundary) */
 641         /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
 642 #if (BITS_PER_LONG == 32)
 643         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 644 #else
 645         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 646                 + RX_RING_SIZE + 8;
 647 #endif
 648
 649         pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
 650                                          &pAC->pDescrMemDMA);
 651
 652         if (pDescrMem == NULL) {
 653                 return (SK_FALSE);
 654         }
 655         pAC->pDescrMem = pDescrMem;
 656         BusAddr = (unsigned long) pAC->pDescrMemDMA;
 657
 658         /* Descriptors need 8 byte alignment, and this is ensured
 659          * by pci_alloc_consistent.
 660          */
 661         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 662                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 663                         ("TX%d/A: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 664                         i, (unsigned long) pDescrMem,
 665                         BusAddr));
 666                 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
 667                 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
 668                 pDescrMem += TX_RING_SIZE;
 669                 BusAddr += TX_RING_SIZE;
 670
 671                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 672                         ("RX%d: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 673                         i, (unsigned long) pDescrMem,
 674                         (unsigned long)BusAddr));
 675                 pAC->RxPort[i].pRxDescrRing = pDescrMem;
 676                 pAC->RxPort[i].VRxDescrRing = BusAddr;
 677                 pDescrMem += RX_RING_SIZE;
 678                 BusAddr += RX_RING_SIZE;
 679         } /* for */
 680
 681         return (SK_TRUE);
 682 } /* BoardAllocMem */
 683
 684
 685 /****************************************************************************
 686  *
 687  *      BoardFreeMem - reverse of BoardAllocMem
 688  *
 689  * Description:
 690  *      Free all memory allocated in BoardAllocMem: adapter context,
 691  *      descriptor rings, locks.
 692  *
 693  * Returns:     N/A
 694  */
 695 static void BoardFreeMem(
 696 SK_AC           *pAC)
 697 {
 698 size_t          AllocLength;    /* length of complete descriptor area */
 699
 700         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 701                 ("BoardFreeMem\n"));
 702 #if (BITS_PER_LONG == 32)
 703         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 704 #else
 705         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 706                 + RX_RING_SIZE + 8;
 707 #endif
 708
 709         pci_free_consistent(pAC->PciDev, AllocLength,
 710                             pAC->pDescrMem, pAC->pDescrMemDMA);
 711         pAC->pDescrMem = NULL;
 712 } /* BoardFreeMem */
 713
 714
 715 /*****************************************************************************
 716  *
 717  *      BoardInitMem - initiate the descriptor rings
 718  *
 719  * Description:
 720  *      This function sets the descriptor rings up in memory.
 721  *      The adapter is initialized with the descriptor start addresses.
 722  *
 723  * Returns:     N/A
 724  */
 725 static __devinit void BoardInitMem(SK_AC *pAC)
 726 {
 727 int     i;              /* loop counter */
 728 int     RxDescrSize;    /* the size of a rx descriptor rounded up to alignment*/
 729 int     TxDescrSize;    /* the size of a tx descriptor rounded up to alignment*/
 730
 731         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 732                 ("BoardInitMem\n"));
 733
 734         RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 735         pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
 736         TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 737         pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
 738
 739         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 740                 SetupRing(
 741                         pAC,
 742                         pAC->TxPort[i][0].pTxDescrRing,
 743                         pAC->TxPort[i][0].VTxDescrRing,
 744                         (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
 745                         (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
 746                         (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
 747                         &pAC->TxPort[i][0].TxdRingFree,
 748                         SK_TRUE);
 749                 SetupRing(
 750                         pAC,
 751                         pAC->RxPort[i].pRxDescrRing,
 752                         pAC->RxPort[i].VRxDescrRing,
 753                         &pAC->RxPort[i].pRxdRingHead,
 754                         &pAC->RxPort[i].pRxdRingTail,
 755                         &pAC->RxPort[i].pRxdRingPrev,
 756                         &pAC->RxPort[i].RxdRingFree,
 757                         SK_FALSE);
 758         }
 759 } /* BoardInitMem */
 760
 761
 762 /*****************************************************************************
 763  *
 764  *      SetupRing - create one descriptor ring
 765  *
 766  * Description:
 767  *      This function creates one descriptor ring in the given memory area.
 768  *      The head, tail and number of free descriptors in the ring are set.
 769  *
 770  * Returns:
 771  *      none
 772  */
 773 static void SetupRing(
 774 SK_AC           *pAC,
 775 void            *pMemArea,      /* a pointer to the memory area for the ring */
 776 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
 777 RXD             **ppRingHead,   /* address where the head should be written */
 778 RXD             **ppRingTail,   /* address where the tail should be written */
 779 RXD             **ppRingPrev,   /* address where the tail should be written */
 780 int             *pRingFree,     /* address where the # of free descr. goes */
 781 SK_BOOL         IsTx)           /* flag: is this a tx ring */
 782 {
 783 int     i;              /* loop counter */
 784 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
 785 int     DescrNum;       /* number of descriptors per ring */
 786 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
 787 RXD     *pNextDescr;    /* pointer to the next descriptor */
 788 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
 789 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
 790
 791         if (IsTx == SK_TRUE) {
 792                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
 793                         DESCR_ALIGN;
 794                 DescrNum = TX_RING_SIZE / DescrSize;
 795         } else {
 796                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
 797                         DESCR_ALIGN;
 798                 DescrNum = RX_RING_SIZE / DescrSize;
 799         }
 800
 801         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 802                 ("Descriptor size: %d   Descriptor Number: %d\n",
 803                 DescrSize,DescrNum));
 804
 805         pDescr = (RXD*) pMemArea;
 806         pPrevDescr = NULL;
 807         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 808         VNextDescr = VMemArea + DescrSize;
 809         for(i=0; i<DescrNum; i++) {
 810                 /* set the pointers right */
 811                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
 812                 pDescr->pNextRxd = pNextDescr;
 813                 if (!IsTx) pDescr->TcpSumStarts = ETH_HLEN << 16 | ETH_HLEN;
 814
 815                 /* advance one step */
 816                 pPrevDescr = pDescr;
 817                 pDescr = pNextDescr;
 818                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 819                 VNextDescr += DescrSize;
 820         }
 821         pPrevDescr->pNextRxd = (RXD*) pMemArea;
 822         pPrevDescr->VNextRxd = VMemArea;
 823         pDescr = (RXD*) pMemArea;
 824         *ppRingHead = (RXD*) pMemArea;
 825         *ppRingTail = *ppRingHead;
 826         *ppRingPrev = pPrevDescr;
 827         *pRingFree = DescrNum;
 828 } /* SetupRing */
 829
 830
 831 /*****************************************************************************
 832  *
 833  *      PortReInitBmu - re-initiate the descriptor rings for one port
 834  *
 835  * Description:
 836  *      This function reinitializes the descriptor rings of one port
 837  *      in memory. The port must be stopped before.
 838  *      The HW is initialized with the descriptor start addresses.
 839  *
 840  * Returns:
 841  *      none
 842  */
 843 static void PortReInitBmu(
 844 SK_AC   *pAC,           /* pointer to adapter context */
 845 int     PortIndex)      /* index of the port for which to re-init */
 846 {
 847         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 848                 ("PortReInitBmu "));
 849
 850         /* set address of first descriptor of ring in BMU */
 851         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_L,
 852                 (uint32_t)(((caddr_t)
 853                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 854                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 855                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
 856                 0xFFFFFFFF));
 857         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_H,
 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) >> 32));
 862         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_L,
 863                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 864                 pAC->RxPort[PortIndex].pRxDescrRing +
 865                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
 866         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_H,
 867                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 868                 pAC->RxPort[PortIndex].pRxDescrRing +
 869                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
 870 } /* PortReInitBmu */
 871
 872
 873 /****************************************************************************
 874  *
 875  *      SkGeIsr - handle adapter interrupts
 876  *
 877  * Description:
 878  *      The interrupt routine is called when the network adapter
 879  *      generates an interrupt. It may also be called if another device
 880  *      shares this interrupt vector with the driver.
 881  *
 882  * Returns: N/A
 883  *
 884  */
 885 static SkIsrRetVar SkGeIsr(int irq, void *dev_id)
 886 {
 887 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
 888 DEV_NET         *pNet;
 889 SK_AC           *pAC;
 890 SK_U32          IntSrc;         /* interrupts source register contents */
 891
 892         pNet = netdev_priv(dev);
 893         pAC = pNet->pAC;
 894
 895         /*
 896          * Check and process if its our interrupt
 897          */
 898         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
 899         if (IntSrc == 0) {
 900                 return SkIsrRetNone;
 901         }
 902
 903         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
 904 #if 0 /* software irq currently not used */
 905                 if (IntSrc & IS_IRQ_SW) {
 906                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 907                                 SK_DBGCAT_DRV_INT_SRC,
 908                                 ("Software IRQ\n"));
 909                 }
 910 #endif
 911                 if (IntSrc & IS_R1_F) {
 912                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 913                                 SK_DBGCAT_DRV_INT_SRC,
 914                                 ("EOF RX1 IRQ\n"));
 915                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
 916                         SK_PNMI_CNT_RX_INTR(pAC, 0);
 917                 }
 918                 if (IntSrc & IS_R2_F) {
 919                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 920                                 SK_DBGCAT_DRV_INT_SRC,
 921                                 ("EOF RX2 IRQ\n"));
 922                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
 923                         SK_PNMI_CNT_RX_INTR(pAC, 1);
 924                 }
 925 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 926                 if (IntSrc & IS_XA1_F) {
 927                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 928                                 SK_DBGCAT_DRV_INT_SRC,
 929                                 ("EOF AS TX1 IRQ\n"));
 930                         SK_PNMI_CNT_TX_INTR(pAC, 0);
 931                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 932                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
 933                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 934                 }
 935                 if (IntSrc & IS_XA2_F) {
 936                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 937                                 SK_DBGCAT_DRV_INT_SRC,
 938                                 ("EOF AS TX2 IRQ\n"));
 939                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 940                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 941                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
 942                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 943                 }
 944 #if 0 /* only if sync. queues used */
 945                 if (IntSrc & IS_XS1_F) {
 946                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 947                                 SK_DBGCAT_DRV_INT_SRC,
 948                                 ("EOF SY TX1 IRQ\n"));
 949                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 950                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 951                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
 952                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 953                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
 954                 }
 955                 if (IntSrc & IS_XS2_F) {
 956                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 957                                 SK_DBGCAT_DRV_INT_SRC,
 958                                 ("EOF SY TX2 IRQ\n"));
 959                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 960                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 961                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
 962                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 963                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
 964                 }
 965 #endif
 966 #endif
 967
 968                 /* do all IO at once */
 969                 if (IntSrc & IS_R1_F)
 970                         ClearAndStartRx(pAC, 0);
 971                 if (IntSrc & IS_R2_F)
 972                         ClearAndStartRx(pAC, 1);
 973 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 974                 if (IntSrc & IS_XA1_F)
 975                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
 976                 if (IntSrc & IS_XA2_F)
 977                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
 978 #endif
 979                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
 980         } /* while (IntSrc & IRQ_MASK != 0) */
 981
 982         IntSrc &= pAC->GIni.GIValIrqMask;
 983         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
 984                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
 985                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
 986                 pAC->CheckQueue = SK_FALSE;
 987                 spin_lock(&pAC->SlowPathLock);
 988                 if (IntSrc & SPECIAL_IRQS)
 989                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
 990
 991                 SkEventDispatcher(pAC, pAC->IoBase);
 992                 spin_unlock(&pAC->SlowPathLock);
 993         }
 994         /*
 995          * do it all again is case we cleared an interrupt that
 996          * came in after handling the ring (OUTs may be delayed
 997          * in hardware buffers, but are through after IN)
 998          *
 999          * rroesler: has been commented out and shifted to
1000          *           SkGeDrvEvent(), because it is timer
1001          *           guarded now
1002          *
1003         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1004         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1005          */
1006
1007         if (pAC->CheckQueue) {
1008                 pAC->CheckQueue = SK_FALSE;
1009                 spin_lock(&pAC->SlowPathLock);
1010                 SkEventDispatcher(pAC, pAC->IoBase);
1011                 spin_unlock(&pAC->SlowPathLock);
1012         }
1013
1014         /* IRQ is processed - Enable IRQs again*/
1015         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1016
1017                 return SkIsrRetHandled;
1018 } /* SkGeIsr */
1019
1020
1021 /****************************************************************************
1022  *
1023  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1024  *
1025  * Description:
1026  *      The interrupt routine is called when the network adapter
1027  *      generates an interrupt. It may also be called if another device
1028  *      shares this interrupt vector with the driver.
1029  *      This is the same as above, but handles only one port.
1030  *
1031  * Returns: N/A
1032  *
1033  */
1034 static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id)
1035 {
1036 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1037 DEV_NET         *pNet;
1038 SK_AC           *pAC;
1039 SK_U32          IntSrc;         /* interrupts source register contents */
1040
1041         pNet = netdev_priv(dev);
1042         pAC = pNet->pAC;
1043
1044         /*
1045          * Check and process if its our interrupt
1046          */
1047         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1048         if (IntSrc == 0) {
1049                 return SkIsrRetNone;
1050         }
1051
1052         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1053 #if 0 /* software irq currently not used */
1054                 if (IntSrc & IS_IRQ_SW) {
1055                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1056                                 SK_DBGCAT_DRV_INT_SRC,
1057                                 ("Software IRQ\n"));
1058                 }
1059 #endif
1060                 if (IntSrc & IS_R1_F) {
1061                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1062                                 SK_DBGCAT_DRV_INT_SRC,
1063                                 ("EOF RX1 IRQ\n"));
1064                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1065                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1066                 }
1067 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1068                 if (IntSrc & IS_XA1_F) {
1069                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1070                                 SK_DBGCAT_DRV_INT_SRC,
1071                                 ("EOF AS TX1 IRQ\n"));
1072                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1073                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1074                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1075                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1076                 }
1077 #if 0 /* only if sync. queues used */
1078                 if (IntSrc & IS_XS1_F) {
1079                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1080                                 SK_DBGCAT_DRV_INT_SRC,
1081                                 ("EOF SY TX1 IRQ\n"));
1082                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1083                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1084                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1085                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1086                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1087                 }
1088 #endif
1089 #endif
1090
1091                 /* do all IO at once */
1092                 if (IntSrc & IS_R1_F)
1093                         ClearAndStartRx(pAC, 0);
1094 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1095                 if (IntSrc & IS_XA1_F)
1096                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1097 #endif
1098                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1099         } /* while (IntSrc & IRQ_MASK != 0) */
1100
1101         IntSrc &= pAC->GIni.GIValIrqMask;
1102         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1103                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1104                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1105                 pAC->CheckQueue = SK_FALSE;
1106                 spin_lock(&pAC->SlowPathLock);
1107                 if (IntSrc & SPECIAL_IRQS)
1108                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1109
1110                 SkEventDispatcher(pAC, pAC->IoBase);
1111                 spin_unlock(&pAC->SlowPathLock);
1112         }
1113         /*
1114          * do it all again is case we cleared an interrupt that
1115          * came in after handling the ring (OUTs may be delayed
1116          * in hardware buffers, but are through after IN)
1117          *
1118          * rroesler: has been commented out and shifted to
1119          *           SkGeDrvEvent(), because it is timer
1120          *           guarded now
1121          *
1122         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1123          */
1124
1125         /* IRQ is processed - Enable IRQs again*/
1126         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1127
1128                 return SkIsrRetHandled;
1129 } /* SkGeIsrOnePort */
1130
1131 #ifdef CONFIG_NET_POLL_CONTROLLER
1132 /****************************************************************************
1133  *
1134  *      SkGePollController - polling receive, for netconsole
1135  *
1136  * Description:
1137  *      Polling receive - used by netconsole and other diagnostic tools
1138  *      to allow network i/o with interrupts disabled.
1139  *
1140  * Returns: N/A
1141  */
1142 static void SkGePollController(struct net_device *dev)
1143 {
1144         disable_irq(dev->irq);
1145         SkGeIsr(dev->irq, dev);
1146         enable_irq(dev->irq);
1147 }
1148 #endif
1149
1150 /****************************************************************************
1151  *
1152  *      SkGeOpen - handle start of initialized adapter
1153  *
1154  * Description:
1155  *      This function starts the initialized adapter.
1156  *      The board level variable is set and the adapter is
1157  *      brought to full functionality.
1158  *      The device flags are set for operation.
1159  *      Do all necessary level 2 initialization, enable interrupts and
1160  *      give start command to RLMT.
1161  *
1162  * Returns:
1163  *      0 on success
1164  *      != 0 on error
1165  */
1166 static int SkGeOpen(
1167 struct SK_NET_DEVICE    *dev)
1168 {
1169         DEV_NET                 *pNet;
1170         SK_AC                   *pAC;
1171         unsigned long   Flags;          /* for spin lock */
1172         int                             i;
1173         SK_EVPARA               EvPara;         /* an event parameter union */
1174
1175         pNet = netdev_priv(dev);
1176         pAC = pNet->pAC;
1177
1178         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1179                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1180
1181 #ifdef SK_DIAG_SUPPORT
1182         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1183                 if (pAC->Pnmi.DiagAttached == SK_DIAG_RUNNING) {
1184                         return (-1);   /* still in use by diag; deny actions */
1185                 }
1186         }
1187 #endif
1188
1189         /* Set blink mode */
1190         if ((pAC->PciDev->vendor == 0x1186) || (pAC->PciDev->vendor == 0x11ab ))
1191                 pAC->GIni.GILedBlinkCtrl = OEM_CONFIG_VALUE;
1192
1193         if (pAC->BoardLevel == SK_INIT_DATA) {
1194                 /* level 1 init common modules here */
1195                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
1196                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1197                         return (-1);
1198                 }
1199                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_IO);
1200                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_IO);
1201                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_IO);
1202                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_IO);
1203                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_IO);
1204                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_IO);
1205                 pAC->BoardLevel = SK_INIT_IO;
1206         }
1207
1208         if (pAC->BoardLevel != SK_INIT_RUN) {
1209                 /* tschilling: Level 2 init modules here, check return value. */
1210                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_RUN) != 0) {
1211                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1212                         return (-1);
1213                 }
1214                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_RUN);
1215                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1216                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1217                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1218                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1219                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1220                 pAC->BoardLevel = SK_INIT_RUN;
1221         }
1222
1223         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1224                 /* Enable transmit descriptor polling. */
1225                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1226                 FillRxRing(pAC, &pAC->RxPort[i]);
1227         }
1228         SkGeYellowLED(pAC, pAC->IoBase, 1);
1229
1230         StartDrvCleanupTimer(pAC);
1231         SkDimEnableModerationIfNeeded(pAC);
1232         SkDimDisplayModerationSettings(pAC);
1233
1234         pAC->GIni.GIValIrqMask &= IRQ_MASK;
1235
1236         /* enable Interrupts */
1237         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1238         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1239
1240         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1241
1242         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1243                 EvPara.Para32[0] = pAC->RlmtNets;
1244                 EvPara.Para32[1] = -1;
1245                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1246                         EvPara);
1247                 EvPara.Para32[0] = pAC->RlmtMode;
1248                 EvPara.Para32[1] = 0;
1249                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1250                         EvPara);
1251         }
1252
1253         EvPara.Para32[0] = pNet->NetNr;
1254         EvPara.Para32[1] = -1;
1255         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1256         SkEventDispatcher(pAC, pAC->IoBase);
1257         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1258
1259         pAC->MaxPorts++;
1260
1261
1262         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1263                 ("SkGeOpen suceeded\n"));
1264
1265         return (0);
1266 } /* SkGeOpen */
1267
1268
1269 /****************************************************************************
1270  *
1271  *      SkGeClose - Stop initialized adapter
1272  *
1273  * Description:
1274  *      Close initialized adapter.
1275  *
1276  * Returns:
1277  *      0 - on success
1278  *      error code - on error
1279  */
1280 static int SkGeClose(
1281 struct SK_NET_DEVICE    *dev)
1282 {
1283         DEV_NET         *pNet;
1284         DEV_NET         *newPtrNet;
1285         SK_AC           *pAC;
1286
1287         unsigned long   Flags;          /* for spin lock */
1288         int             i;
1289         int             PortIdx;
1290         SK_EVPARA       EvPara;
1291
1292         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1293                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1294
1295         pNet = netdev_priv(dev);
1296         pAC = pNet->pAC;
1297
1298 #ifdef SK_DIAG_SUPPORT
1299         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1300                 if (pAC->DiagFlowCtrl == SK_FALSE) {
1301                         /*
1302                         ** notify that the interface which has been closed
1303                         ** by operator interaction must not be started up
1304                         ** again when the DIAG has finished.
1305                         */
1306                         newPtrNet = netdev_priv(pAC->dev[0]);
1307                         if (newPtrNet == pNet) {
1308                                 pAC->WasIfUp[0] = SK_FALSE;
1309                         } else {
1310                                 pAC->WasIfUp[1] = SK_FALSE;
1311                         }
1312                         return 0; /* return to system everything is fine... */
1313                 } else {
1314                         pAC->DiagFlowCtrl = SK_FALSE;
1315                 }
1316         }
1317 #endif
1318
1319         netif_stop_queue(dev);
1320
1321         if (pAC->RlmtNets == 1)
1322                 PortIdx = pAC->ActivePort;
1323         else
1324                 PortIdx = pNet->NetNr;
1325
1326         StopDrvCleanupTimer(pAC);
1327
1328         /*
1329          * Clear multicast table, promiscuous mode ....
1330          */
1331         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1332         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1333                 SK_PROM_MODE_NONE);
1334
1335         if (pAC->MaxPorts == 1) {
1336                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1337                 /* disable interrupts */
1338                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1339                 EvPara.Para32[0] = pNet->NetNr;
1340                 EvPara.Para32[1] = -1;
1341                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1342                 SkEventDispatcher(pAC, pAC->IoBase);
1343                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1344                 /* stop the hardware */
1345                 SkGeDeInit(pAC, pAC->IoBase);
1346                 pAC->BoardLevel = SK_INIT_DATA;
1347                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1348         } else {
1349
1350                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1351                 EvPara.Para32[0] = pNet->NetNr;
1352                 EvPara.Para32[1] = -1;
1353                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1354                 SkPnmiEvent(pAC, pAC->IoBase, SK_PNMI_EVT_XMAC_RESET, EvPara);
1355                 SkEventDispatcher(pAC, pAC->IoBase);
1356                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1357
1358                 /* Stop port */
1359                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1360                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1361                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1362                         SK_STOP_ALL, SK_HARD_RST);
1363                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1364                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1365         }
1366
1367         if (pAC->RlmtNets == 1) {
1368                 /* clear all descriptor rings */
1369                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1370                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1371                         ClearRxRing(pAC, &pAC->RxPort[i]);
1372                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1373                 }
1374         } else {
1375                 /* clear port descriptor rings */
1376                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1377                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1378                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1379         }
1380
1381         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1382                 ("SkGeClose: done "));
1383
1384         SK_MEMSET(&(pAC->PnmiBackup), 0, sizeof(SK_PNMI_STRUCT_DATA));
1385         SK_MEMCPY(&(pAC->PnmiBackup), &(pAC->PnmiStruct),
1386                         sizeof(SK_PNMI_STRUCT_DATA));
1387
1388         pAC->MaxPorts--;
1389
1390         return (0);
1391 } /* SkGeClose */
1392
1393
1394 /*****************************************************************************
1395  *
1396  *      SkGeXmit - Linux frame transmit function
1397  *
1398  * Description:
1399  *      The system calls this function to send frames onto the wire.
1400  *      It puts the frame in the tx descriptor ring. If the ring is
1401  *      full then, the 'tbusy' flag is set.
1402  *
1403  * Returns:
1404  *      0, if everything is ok
1405  *      !=0, on error
1406  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
1407  *      allocated skb's) !!!
1408  */
1409 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
1410 {
1411 DEV_NET         *pNet;
1412 SK_AC           *pAC;
1413 int                     Rc;     /* return code of XmitFrame */
1414
1415         pNet = netdev_priv(dev);
1416         pAC = pNet->pAC;
1417
1418         if ((!skb_shinfo(skb)->nr_frags) ||
1419                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
1420                 /* Don't activate scatter-gather and hardware checksum */
1421
1422                 if (pAC->RlmtNets == 2)
1423                         Rc = XmitFrame(
1424                                 pAC,
1425                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1426                                 skb);
1427                 else
1428                         Rc = XmitFrame(
1429                                 pAC,
1430                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1431                                 skb);
1432         } else {
1433                 /* scatter-gather and hardware TCP checksumming anabled*/
1434                 if (pAC->RlmtNets == 2)
1435                         Rc = XmitFrameSG(
1436                                 pAC,
1437                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1438                                 skb);
1439                 else
1440                         Rc = XmitFrameSG(
1441                                 pAC,
1442                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1443                                 skb);
1444         }
1445
1446         /* Transmitter out of resources? */
1447         if (Rc <= 0) {
1448                 netif_stop_queue(dev);
1449         }
1450
1451         /* If not taken, give buffer ownership back to the
1452          * queueing layer.
1453          */
1454         if (Rc < 0)
1455                 return (1);
1456
1457         dev->trans_start = jiffies;
1458         return (0);
1459 } /* SkGeXmit */
1460
1461
1462 /*****************************************************************************
1463  *
1464  *      XmitFrame - fill one socket buffer into the transmit ring
1465  *
1466  * Description:
1467  *      This function puts a message into the transmit descriptor ring
1468  *      if there is a descriptors left.
1469  *      Linux skb's consist of only one continuous buffer.
1470  *      The first step locks the ring. It is held locked
1471  *      all time to avoid problems with SWITCH_../PORT_RESET.
1472  *      Then the descriptoris allocated.
1473  *      The second part is linking the buffer to the descriptor.
1474  *      At the very last, the Control field of the descriptor
1475  *      is made valid for the BMU and a start TX command is given
1476  *      if necessary.
1477  *
1478  * Returns:
1479  *      > 0 - on succes: the number of bytes in the message
1480  *      = 0 - on resource shortage: this frame sent or dropped, now
1481  *              the ring is full ( -> set tbusy)
1482  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1483  */
1484 static int XmitFrame(
1485 SK_AC           *pAC,           /* pointer to adapter context           */
1486 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1487 struct sk_buff  *pMessage)      /* pointer to send-message              */
1488 {
1489         TXD             *pTxd;          /* the rxd to fill */
1490         TXD             *pOldTxd;
1491         unsigned long    Flags;
1492         SK_U64           PhysAddr;
1493         int              BytesSend = pMessage->len;
1494
1495         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
1496
1497         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1498 #ifndef USE_TX_COMPLETE
1499         FreeTxDescriptors(pAC, pTxPort);
1500 #endif
1501         if (pTxPort->TxdRingFree == 0) {
1502                 /*
1503                 ** no enough free descriptors in ring at the moment.
1504                 ** Maybe free'ing some old one help?
1505                 */
1506                 FreeTxDescriptors(pAC, pTxPort);
1507                 if (pTxPort->TxdRingFree == 0) {
1508                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1509                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1510                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1511                                 SK_DBGCAT_DRV_TX_PROGRESS,
1512                                 ("XmitFrame failed\n"));
1513                         /*
1514                         ** the desired message can not be sent
1515                         ** Because tbusy seems to be set, the message
1516                         ** should not be freed here. It will be used
1517                         ** by the scheduler of the ethernet handler
1518                         */
1519                         return (-1);
1520                 }
1521         }
1522
1523         /*
1524         ** If the passed socket buffer is of smaller MTU-size than 60,
1525         ** copy everything into new buffer and fill all bytes between
1526         ** the original packet end and the new packet end of 60 with 0x00.
1527         ** This is to resolve faulty padding by the HW with 0xaa bytes.
1528         */
1529         if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
1530                 if (skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) {
1531                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1532                         return 0;
1533                 }
1534                 pMessage->len = C_LEN_ETHERNET_MINSIZE;
1535         }
1536
1537         /*
1538         ** advance head counter behind descriptor needed for this frame,
1539         ** so that needed descriptor is reserved from that on. The next
1540         ** action will be to add the passed buffer to the TX-descriptor
1541         */
1542         pTxd = pTxPort->pTxdRingHead;
1543         pTxPort->pTxdRingHead = pTxd->pNextTxd;
1544         pTxPort->TxdRingFree--;
1545
1546 #ifdef SK_DUMP_TX
1547         DumpMsg(pMessage, "XmitFrame");
1548 #endif
1549
1550         /*
1551         ** First step is to map the data to be sent via the adapter onto
1552         ** the DMA memory. Kernel 2.2 uses virt_to_bus(), but kernels 2.4
1553         ** and 2.6 need to use pci_map_page() for that mapping.
1554         */
1555         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1556                                         virt_to_page(pMessage->data),
1557                                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1558                                         pMessage->len,
1559                                         PCI_DMA_TODEVICE);
1560         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1561         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1562         pTxd->pMBuf     = pMessage;
1563
1564         if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
1565                 u16 hdrlen = skb_transport_offset(pMessage);
1566                 u16 offset = hdrlen + pMessage->csum_offset;
1567
1568                 if ((ipip_hdr(pMessage)->protocol == IPPROTO_UDP) &&
1569                         (pAC->GIni.GIChipRev == 0) &&
1570                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1571                         pTxd->TBControl = BMU_TCP_CHECK;
1572                 } else {
1573                         pTxd->TBControl = BMU_UDP_CHECK;
1574                 }
1575
1576                 pTxd->TcpSumOfs = 0;
1577                 pTxd->TcpSumSt  = hdrlen;
1578                 pTxd->TcpSumWr  = offset;
1579
1580                 pTxd->TBControl |= BMU_OWN | BMU_STF |
1581                                    BMU_SW  | BMU_EOF |
1582 #ifdef USE_TX_COMPLETE
1583                                    BMU_IRQ_EOF |
1584 #endif
1585                                    pMessage->len;
1586         } else {
1587                 pTxd->TBControl = BMU_OWN | BMU_STF | BMU_CHECK |
1588                                   BMU_SW  | BMU_EOF |
1589 #ifdef USE_TX_COMPLETE
1590                                    BMU_IRQ_EOF |
1591 #endif
1592                         pMessage->len;
1593         }
1594
1595         /*
1596         ** If previous descriptor already done, give TX start cmd
1597         */
1598         pOldTxd = xchg(&pTxPort->pTxdRingPrev, pTxd);
1599         if ((pOldTxd->TBControl & BMU_OWN) == 0) {
1600                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1601         }
1602
1603         /*
1604         ** after releasing the lock, the skb may immediately be free'd
1605         */
1606         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1607         if (pTxPort->TxdRingFree != 0) {
1608                 return (BytesSend);
1609         } else {
1610                 return (0);
1611         }
1612
1613 } /* XmitFrame */
1614
1615 /*****************************************************************************
1616  *
1617  *      XmitFrameSG - fill one socket buffer into the transmit ring
1618  *                (use SG and TCP/UDP hardware checksumming)
1619  *
1620  * Description:
1621  *      This function puts a message into the transmit descriptor ring
1622  *      if there is a descriptors left.
1623  *
1624  * Returns:
1625  *      > 0 - on succes: the number of bytes in the message
1626  *      = 0 - on resource shortage: this frame sent or dropped, now
1627  *              the ring is full ( -> set tbusy)
1628  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1629  */
1630 static int XmitFrameSG(
1631 SK_AC           *pAC,           /* pointer to adapter context           */
1632 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1633 struct sk_buff  *pMessage)      /* pointer to send-message              */
1634 {
1635
1636         TXD             *pTxd;
1637         TXD             *pTxdFst;
1638         TXD             *pTxdLst;
1639         int              CurrFrag;
1640         int              BytesSend;
1641         skb_frag_t      *sk_frag;
1642         SK_U64           PhysAddr;
1643         unsigned long    Flags;
1644         SK_U32           Control;
1645
1646         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1647 #ifndef USE_TX_COMPLETE
1648         FreeTxDescriptors(pAC, pTxPort);
1649 #endif
1650         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
1651                 FreeTxDescriptors(pAC, pTxPort);
1652                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
1653                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1654                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1655                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1656                                 SK_DBGCAT_DRV_TX_PROGRESS,
1657                                 ("XmitFrameSG failed - Ring full\n"));
1658                                 /* this message can not be sent now */
1659                         return(-1);
1660                 }
1661         }
1662
1663         pTxd      = pTxPort->pTxdRingHead;
1664         pTxdFst   = pTxd;
1665         pTxdLst   = pTxd;
1666         BytesSend = 0;
1667
1668         /*
1669         ** Map the first fragment (header) into the DMA-space
1670         */
1671         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1672                         virt_to_page(pMessage->data),
1673                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1674                         skb_headlen(pMessage),
1675                         PCI_DMA_TODEVICE);
1676
1677         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1678         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1679
1680         /*
1681         ** Does the HW need to evaluate checksum for TCP or UDP packets?
1682         */
1683         if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
1684                 u16 hdrlen = skb_transport_offset(pMessage);
1685                 u16 offset = hdrlen + pMessage->csum_offset;
1686
1687                 Control = BMU_STFWD;
1688
1689                 /*
1690                 ** We have to use the opcode for tcp here,  because the
1691                 ** opcode for udp is not working in the hardware yet
1692                 ** (Revision 2.0)
1693                 */
1694                 if ((ipip_hdr(pMessage)->protocol == IPPROTO_UDP) &&
1695                         (pAC->GIni.GIChipRev == 0) &&
1696                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1697                         Control |= BMU_TCP_CHECK;
1698                 } else {
1699                         Control |= BMU_UDP_CHECK;
1700                 }
1701
1702                 pTxd->TcpSumOfs = 0;
1703                 pTxd->TcpSumSt  = hdrlen;
1704                 pTxd->TcpSumWr  = offset;
1705         } else
1706                 Control = BMU_CHECK | BMU_SW;
1707
1708         pTxd->TBControl = BMU_STF | Control | skb_headlen(pMessage);
1709
1710         pTxd = pTxd->pNextTxd;
1711         pTxPort->TxdRingFree--;
1712         BytesSend += skb_headlen(pMessage);
1713
1714         /*
1715         ** Browse over all SG fragments and map each of them into the DMA space
1716         */
1717         for (CurrFrag = 0; CurrFrag < skb_shinfo(pMessage)->nr_frags; CurrFrag++) {
1718                 sk_frag = &skb_shinfo(pMessage)->frags[CurrFrag];
1719                 /*
1720                 ** we already have the proper value in entry
1721                 */
1722                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1723                                                  sk_frag->page,
1724                                                  sk_frag->page_offset,
1725                                                  sk_frag->size,
1726                                                  PCI_DMA_TODEVICE);
1727
1728                 pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1729                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1730                 pTxd->pMBuf     = pMessage;
1731
1732                 pTxd->TBControl = Control | BMU_OWN | sk_frag->size;
1733
1734                 /*
1735                 ** Do we have the last fragment?
1736                 */
1737                 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags )  {
1738 #ifdef USE_TX_COMPLETE
1739                         pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF;
1740 #else
1741                         pTxd->TBControl |= BMU_EOF;
1742 #endif
1743                         pTxdFst->TBControl |= BMU_OWN | BMU_SW;
1744                 }
1745                 pTxdLst = pTxd;
1746                 pTxd    = pTxd->pNextTxd;
1747                 pTxPort->TxdRingFree--;
1748                 BytesSend += sk_frag->size;
1749         }
1750
1751         /*
1752         ** If previous descriptor already done, give TX start cmd
1753         */
1754         if ((pTxPort->pTxdRingPrev->TBControl & BMU_OWN) == 0) {
1755                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1756         }
1757
1758         pTxPort->pTxdRingPrev = pTxdLst;
1759         pTxPort->pTxdRingHead = pTxd;
1760
1761         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1762
1763         if (pTxPort->TxdRingFree > 0) {
1764                 return (BytesSend);
1765         } else {
1766                 return (0);
1767         }
1768 }
1769
1770 /*****************************************************************************
1771  *
1772  *      FreeTxDescriptors - release descriptors from the descriptor ring
1773  *
1774  * Description:
1775  *      This function releases descriptors from a transmit ring if they
1776  *      have been sent by the BMU.
1777  *      If a descriptors is sent, it can be freed and the message can
1778  *      be freed, too.
1779  *      The SOFTWARE controllable bit is used to prevent running around a
1780  *      completely free ring for ever. If this bit is no set in the
1781  *      frame (by XmitFrame), this frame has never been sent or is
1782  *      already freed.
1783  *      The Tx descriptor ring lock must be held while calling this function !!!
1784  *
1785  * Returns:
1786  *      none
1787  */
1788 static void FreeTxDescriptors(
1789 SK_AC   *pAC,           /* pointer to the adapter context */
1790 TX_PORT *pTxPort)       /* pointer to destination port structure */
1791 {
1792 TXD     *pTxd;          /* pointer to the checked descriptor */
1793 TXD     *pNewTail;      /* pointer to 'end' of the ring */
1794 SK_U32  Control;        /* TBControl field of descriptor */
1795 SK_U64  PhysAddr;       /* address of DMA mapping */
1796
1797         pNewTail = pTxPort->pTxdRingTail;
1798         pTxd     = pNewTail;
1799         /*
1800         ** loop forever; exits if BMU_SW bit not set in start frame
1801         ** or BMU_OWN bit set in any frame
1802         */
1803         while (1) {
1804                 Control = pTxd->TBControl;
1805                 if ((Control & BMU_SW) == 0) {
1806                         /*
1807                         ** software controllable bit is set in first
1808                         ** fragment when given to BMU. Not set means that
1809                         ** this fragment was never sent or is already
1810                         ** freed ( -> ring completely free now).
1811                         */
1812                         pTxPort->pTxdRingTail = pTxd;
1813                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1814                         return;
1815                 }
1816                 if (Control & BMU_OWN) {
1817                         pTxPort->pTxdRingTail = pTxd;
1818                         if (pTxPort->TxdRingFree > 0) {
1819                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1820                         }
1821                         return;
1822                 }
1823
1824                 /*
1825                 ** release the DMA mapping, because until not unmapped
1826                 ** this buffer is considered being under control of the
1827                 ** adapter card!
1828                 */
1829                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
1830                 PhysAddr |= (SK_U64) pTxd->VDataLow;
1831                 pci_unmap_page(pAC->PciDev, PhysAddr,
1832                                  pTxd->pMBuf->len,
1833                                  PCI_DMA_TODEVICE);
1834
1835                 if (Control & BMU_EOF)
1836                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
1837
1838                 pTxPort->TxdRingFree++;
1839                 pTxd->TBControl &= ~BMU_SW;
1840                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
1841         } /* while(forever) */
1842 } /* FreeTxDescriptors */
1843
1844 /*****************************************************************************
1845  *
1846  *      FillRxRing - fill the receive ring with valid descriptors
1847  *
1848  * Description:
1849  *      This function fills the receive ring descriptors with data
1850  *      segments and makes them valid for the BMU.
1851  *      The active ring is filled completely, if possible.
1852  *      The non-active ring is filled only partial to save memory.
1853  *
1854  * Description of rx ring structure:
1855  *      head - points to the descriptor which will be used next by the BMU
1856  *      tail - points to the next descriptor to give to the BMU
1857  *
1858  * Returns:     N/A
1859  */
1860 static void FillRxRing(
1861 SK_AC           *pAC,           /* pointer to the adapter context */
1862 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
1863                                    should be filled */
1864 {
1865 unsigned long   Flags;
1866
1867         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
1868         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
1869                 if(!FillRxDescriptor(pAC, pRxPort))
1870                         break;
1871         }
1872         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
1873 } /* FillRxRing */
1874
1875
1876 /*****************************************************************************
1877  *
1878  *      FillRxDescriptor - fill one buffer into the receive ring
1879  *
1880  * Description:
1881  *      The function allocates a new receive buffer and
1882  *      puts it into the next descriptor.
1883  *
1884  * Returns:
1885  *      SK_TRUE - a buffer was added to the ring
1886  *      SK_FALSE - a buffer could not be added
1887  */
1888 static SK_BOOL FillRxDescriptor(
1889 SK_AC           *pAC,           /* pointer to the adapter context struct */
1890 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
1891 {
1892 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
1893 RXD             *pRxd;          /* the rxd to fill */
1894 SK_U16          Length;         /* data fragment length */
1895 SK_U64          PhysAddr;       /* physical address of a rx buffer */
1896
1897         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
1898         if (pMsgBlock == NULL) {
1899                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1900                         SK_DBGCAT_DRV_ENTRY,
1901                         ("%s: Allocation of rx buffer failed !\n",
1902                         pAC->dev[pRxPort->PortIndex]->name));
1903                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
1904                 return(SK_FALSE);
1905         }
1906         skb_reserve(pMsgBlock, 2); /* to align IP frames */
1907         /* skb allocated ok, so add buffer */
1908         pRxd = pRxPort->pRxdRingTail;
1909         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1910         pRxPort->RxdRingFree--;
1911         Length = pAC->RxBufSize;
1912         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1913                 virt_to_page(pMsgBlock->data),
1914                 ((unsigned long) pMsgBlock->data &
1915                 ~PAGE_MASK),
1916                 pAC->RxBufSize - 2,
1917                 PCI_DMA_FROMDEVICE);
1918
1919         pRxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1920         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1921         pRxd->pMBuf     = pMsgBlock;
1922         pRxd->RBControl = BMU_OWN       |
1923                           BMU_STF       |
1924                           BMU_IRQ_EOF   |
1925                           BMU_TCP_CHECK |
1926                           Length;
1927         return (SK_TRUE);
1928
1929 } /* FillRxDescriptor */
1930
1931
1932 /*****************************************************************************
1933  *
1934  *      ReQueueRxBuffer - fill one buffer back into the receive ring
1935  *
1936  * Description:
1937  *      Fill a given buffer back into the rx ring. The buffer
1938  *      has been previously allocated and aligned, and its phys.
1939  *      address calculated, so this is no more necessary.
1940  *
1941  * Returns: N/A
1942  */
1943 static void ReQueueRxBuffer(
1944 SK_AC           *pAC,           /* pointer to the adapter context struct */
1945 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
1946 struct sk_buff  *pMsg,          /* pointer to the buffer */
1947 SK_U32          PhysHigh,       /* phys address high dword */
1948 SK_U32          PhysLow)        /* phys address low dword */
1949 {
1950 RXD             *pRxd;          /* the rxd to fill */
1951 SK_U16          Length;         /* data fragment length */
1952
1953         pRxd = pRxPort->pRxdRingTail;
1954         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1955         pRxPort->RxdRingFree--;
1956         Length = pAC->RxBufSize;
1957
1958         pRxd->VDataLow  = PhysLow;
1959         pRxd->VDataHigh = PhysHigh;
1960         pRxd->pMBuf     = pMsg;
1961         pRxd->RBControl = BMU_OWN       |
1962                           BMU_STF       |
1963                           BMU_IRQ_EOF   |
1964                           BMU_TCP_CHECK |
1965                           Length;
1966         return;
1967 } /* ReQueueRxBuffer */
1968
1969 /*****************************************************************************
1970  *
1971  *      ReceiveIrq - handle a receive IRQ
1972  *
1973  * Description:
1974  *      This function is called when a receive IRQ is set.
1975  *      It walks the receive descriptor ring and sends up all
1976  *      frames that are complete.
1977  *
1978  * Returns:     N/A
1979  */
1980 static void ReceiveIrq(
1981         SK_AC           *pAC,                   /* pointer to adapter context */
1982         RX_PORT         *pRxPort,               /* pointer to receive port struct */
1983         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
1984 {
1985 RXD                             *pRxd;                  /* pointer to receive descriptors */
1986 SK_U32                  Control;                /* control field of descriptor */
1987 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
1988 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
1989 int                             FrameLength;    /* total length of received frame */
1990 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
1991 SK_EVPARA               EvPara;                 /* an event parameter union */
1992 unsigned long   Flags;                  /* for spin lock */
1993 int                             PortIndex = pRxPort->PortIndex;
1994 unsigned int    Offset;
1995 unsigned int    NumBytes;
1996 unsigned int    ForRlmt;
1997 SK_BOOL                 IsBc;
1998 SK_BOOL                 IsMc;
1999 SK_BOOL  IsBadFrame;                    /* Bad frame */
2000
2001 SK_U32                  FrameStat;
2002 SK_U64                  PhysAddr;
2003
2004 rx_start:
2005         /* do forever; exit if BMU_OWN found */
2006         for ( pRxd = pRxPort->pRxdRingHead ;
2007                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2008                   pRxd = pRxd->pNextRxd,
2009                   pRxPort->pRxdRingHead = pRxd,
2010                   pRxPort->RxdRingFree ++) {
2011
2012                 /*
2013                  * For a better understanding of this loop
2014                  * Go through every descriptor beginning at the head
2015                  * Please note: the ring might be completely received so the OWN bit
2016                  * set is not a good crirteria to leave that loop.
2017                  * Therefore the RingFree counter is used.
2018                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2019                  * to be checked next.
2020                  */
2021
2022                 Control = pRxd->RBControl;
2023
2024                 /* check if this descriptor is ready */
2025                 if ((Control & BMU_OWN) != 0) {
2026                         /* this descriptor is not yet ready */
2027                         /* This is the usual end of the loop */
2028                         /* We don't need to start the ring again */
2029                         FillRxRing(pAC, pRxPort);
2030                         return;
2031                 }
2032                 pAC->DynIrqModInfo.NbrProcessedDescr++;
2033
2034                 /* get length of frame and check it */
2035                 FrameLength = Control & BMU_BBC;
2036                 if (FrameLength > pAC->RxBufSize) {
2037                         goto rx_failed;
2038                 }
2039
2040                 /* check for STF and EOF */
2041                 if ((Control & (BMU_STF | BMU_EOF)) != (BMU_STF | BMU_EOF)) {
2042                         goto rx_failed;
2043                 }
2044
2045                 /* here we have a complete frame in the ring */
2046                 pMsg = pRxd->pMBuf;
2047
2048                 FrameStat = pRxd->FrameStat;
2049
2050                 /* check for frame length mismatch */
2051 #define XMR_FS_LEN_SHIFT        18
2052 #define GMR_FS_LEN_SHIFT        16
2053                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2054                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2055                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2056                                         SK_DBGCAT_DRV_RX_PROGRESS,
2057                                         ("skge: Frame length mismatch (%u/%u).\n",
2058                                         FrameLength,
2059                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2060                                 goto rx_failed;
2061                         }
2062                 }
2063                 else {
2064                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2065                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2066                                         SK_DBGCAT_DRV_RX_PROGRESS,
2067                                         ("skge: Frame length mismatch (%u/%u).\n",
2068                                         FrameLength,
2069                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2070                                 goto rx_failed;
2071                         }
2072                 }
2073
2074                 /* Set Rx Status */
2075                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2076                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2077                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2078                         IsBadFrame = (FrameStat &
2079                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2080                 } else {
2081                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2082                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2083                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2084                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2085                 }
2086
2087                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2088                         ("Received frame of length %d on port %d\n",
2089                         FrameLength, PortIndex));
2090                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2091                         ("Number of free rx descriptors: %d\n",
2092                         pRxPort->RxdRingFree));
2093 /* DumpMsg(pMsg, "Rx"); */
2094
2095                 if ((Control & BMU_STAT_VAL) != BMU_STAT_VAL || (IsBadFrame)) {
2096 #if 0
2097                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2098 #endif
2099                         /* there is a receive error in this frame */
2100                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2101                                 SK_DBGCAT_DRV_RX_PROGRESS,
2102                                 ("skge: Error in received frame, dropped!\n"
2103                                 "Control: %x\nRxStat: %x\n",
2104                                 Control, FrameStat));
2105
2106                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2107                                 pRxd->VDataHigh, pRxd->VDataLow);
2108
2109                         continue;
2110                 }
2111
2112                 /*
2113                  * if short frame then copy data to reduce memory waste
2114                  */
2115                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2116                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2117                         /*
2118                          * Short frame detected and allocation successfull
2119                          */
2120                         /* use new skb and copy data */
2121                         skb_reserve(pNewMsg, 2);
2122                         skb_put(pNewMsg, FrameLength);
2123                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2124                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2125
2126                         pci_dma_sync_single_for_cpu(pAC->PciDev,
2127                                                     (dma_addr_t) PhysAddr,
2128                                                     FrameLength,
2129                                                     PCI_DMA_FROMDEVICE);
2130                         skb_copy_to_linear_data(pNewMsg, pMsg, FrameLength);
2131
2132                         pci_dma_sync_single_for_device(pAC->PciDev,
2133                                                        (dma_addr_t) PhysAddr,
2134                                                        FrameLength,
2135                                                        PCI_DMA_FROMDEVICE);
2136                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2137                                 pRxd->VDataHigh, pRxd->VDataLow);
2138
2139                         pMsg = pNewMsg;
2140
2141                 }
2142                 else {
2143                         /*
2144                          * if large frame, or SKB allocation failed, pass
2145                          * the SKB directly to the networking
2146                          */
2147
2148                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2149                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2150
2151                         /* release the DMA mapping */
2152                         pci_unmap_single(pAC->PciDev,
2153                                          PhysAddr,
2154                                          pAC->RxBufSize - 2,
2155                                          PCI_DMA_FROMDEVICE);
2156
2157                         /* set length in message */
2158                         skb_put(pMsg, FrameLength);
2159                 } /* frame > SK_COPY_TRESHOLD */
2160
2161 #ifdef USE_SK_RX_CHECKSUM
2162                 pMsg->csum = pRxd->TcpSums & 0xffff;
2163                 pMsg->ip_summed = CHECKSUM_COMPLETE;
2164 #else
2165                 pMsg->ip_summed = CHECKSUM_NONE;
2166 #endif
2167
2168                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2169                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2170 #if 0
2171                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2172 #endif
2173                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2174                         IsBc, &Offset, &NumBytes);
2175                 if (NumBytes != 0) {
2176 #if 0
2177                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2178 #endif
2179                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2180                                 &pMsg->data[Offset],
2181                                 IsBc, IsMc, &ForRlmt);
2182                 }
2183                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2184                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2185                         /* send up only frames from active port */
2186                         if ((PortIndex == pAC->ActivePort) ||
2187                                 (pAC->RlmtNets == 2)) {
2188                                 /* frame for upper layer */
2189                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2190 #ifdef xDEBUG
2191                                 DumpMsg(pMsg, "Rx");
2192 #endif
2193                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2194                                         FrameLength, pRxPort->PortIndex);
2195
2196                                 pMsg->protocol = eth_type_trans(pMsg,
2197                                         pAC->dev[pRxPort->PortIndex]);
2198                                 netif_rx(pMsg);
2199                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2200                         }
2201                         else {
2202                                 /* drop frame */
2203                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2204                                         SK_DBGCAT_DRV_RX_PROGRESS,
2205                                         ("D"));
2206                                 DEV_KFREE_SKB(pMsg);
2207                         }
2208
2209                 } /* if not for rlmt */
2210                 else {
2211                         /* packet for rlmt */
2212                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2213                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2214                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2215                                 pAC->IoBase, FrameLength);
2216                         if (pRlmtMbuf != NULL) {
2217                                 pRlmtMbuf->pNext = NULL;
2218                                 pRlmtMbuf->Length = FrameLength;
2219                                 pRlmtMbuf->PortIdx = PortIndex;
2220                                 EvPara.pParaPtr = pRlmtMbuf;
2221                                 memcpy((char*)(pRlmtMbuf->pData),
2222                                            (char*)(pMsg->data),
2223                                            FrameLength);
2224
2225                                 /* SlowPathLock needed? */
2226                                 if (SlowPathLock == SK_TRUE) {
2227                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2228                                         SkEventQueue(pAC, SKGE_RLMT,
2229                                                 SK_RLMT_PACKET_RECEIVED,
2230                                                 EvPara);
2231                                         pAC->CheckQueue = SK_TRUE;
2232                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2233                                 } else {
2234                                         SkEventQueue(pAC, SKGE_RLMT,
2235                                                 SK_RLMT_PACKET_RECEIVED,
2236                                                 EvPara);
2237                                         pAC->CheckQueue = SK_TRUE;
2238                                 }
2239
2240                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2241                                         SK_DBGCAT_DRV_RX_PROGRESS,
2242                                         ("Q"));
2243                         }
2244                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2245                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2246                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2247                                 SK_RLMT_RX_PROTOCOL) {
2248                                 pMsg->protocol = eth_type_trans(pMsg,
2249                                         pAC->dev[pRxPort->PortIndex]);
2250                                 netif_rx(pMsg);
2251                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2252                         }
2253                         else {
2254                                 DEV_KFREE_SKB(pMsg);
2255                         }
2256
2257                 } /* if packet for rlmt */
2258         } /* for ... scanning the RXD ring */
2259
2260         /* RXD ring is empty -> fill and restart */
2261         FillRxRing(pAC, pRxPort);
2262         /* do not start if called from Close */
2263         if (pAC->BoardLevel > SK_INIT_DATA) {
2264                 ClearAndStartRx(pAC, PortIndex);
2265         }
2266         return;
2267
2268 rx_failed:
2269         /* remove error frame */
2270         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2271                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2272
2273         /* release the DMA mapping */
2274
2275         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2276         PhysAddr |= (SK_U64) pRxd->VDataLow;
2277         pci_unmap_page(pAC->PciDev,
2278                          PhysAddr,
2279                          pAC->RxBufSize - 2,
2280                          PCI_DMA_FROMDEVICE);
2281         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2282         pRxd->pMBuf = NULL;
2283         pRxPort->RxdRingFree++;
2284         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2285         goto rx_start;
2286
2287 } /* ReceiveIrq */
2288
2289
2290 /*****************************************************************************
2291  *
2292  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2293  *
2294  * Description:
2295  *      This function sends a start command and a clear interrupt
2296  *      command for one receive queue to the BMU.
2297  *
2298  * Returns: N/A
2299  *      none
2300  */
2301 static void ClearAndStartRx(
2302 SK_AC   *pAC,           /* pointer to the adapter context */
2303 int     PortIndex)      /* index of the receive port (XMAC) */
2304 {
2305         SK_OUT8(pAC->IoBase,
2306                 RxQueueAddr[PortIndex]+Q_CSR,
2307                 CSR_START | CSR_IRQ_CL_F);
2308 } /* ClearAndStartRx */
2309
2310
2311 /*****************************************************************************
2312  *
2313  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2314  *
2315  * Description:
2316  *      This function sends a clear tx IRQ command for one
2317  *      transmit queue to the BMU.
2318  *
2319  * Returns: N/A
2320  */
2321 static void ClearTxIrq(
2322 SK_AC   *pAC,           /* pointer to the adapter context */
2323 int     PortIndex,      /* index of the transmit port (XMAC) */
2324 int     Prio)           /* priority or normal queue */
2325 {
2326         SK_OUT8(pAC->IoBase,
2327                 TxQueueAddr[PortIndex][Prio]+Q_CSR,
2328                 CSR_IRQ_CL_F);
2329 } /* ClearTxIrq */
2330
2331
2332 /*****************************************************************************
2333  *
2334  *      ClearRxRing - remove all buffers from the receive ring
2335  *
2336  * Description:
2337  *      This function removes all receive buffers from the ring.
2338  *      The receive BMU must be stopped before calling this function.
2339  *
2340  * Returns: N/A
2341  */
2342 static void ClearRxRing(
2343 SK_AC   *pAC,           /* pointer to adapter context */
2344 RX_PORT *pRxPort)       /* pointer to rx port struct */
2345 {
2346 RXD             *pRxd;  /* pointer to the current descriptor */
2347 unsigned long   Flags;
2348 SK_U64          PhysAddr;
2349
2350         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2351                 return;
2352         }
2353         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2354         pRxd = pRxPort->pRxdRingHead;
2355         do {
2356                 if (pRxd->pMBuf != NULL) {
2357
2358                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2359                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2360                         pci_unmap_page(pAC->PciDev,
2361                                          PhysAddr,
2362                                          pAC->RxBufSize - 2,
2363                                          PCI_DMA_FROMDEVICE);
2364                         DEV_KFREE_SKB(pRxd->pMBuf);
2365                         pRxd->pMBuf = NULL;
2366                 }
2367                 pRxd->RBControl &= BMU_OWN;
2368                 pRxd = pRxd->pNextRxd;
2369                 pRxPort->RxdRingFree++;
2370         } while (pRxd != pRxPort->pRxdRingTail);
2371         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
2372         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2373 } /* ClearRxRing */
2374
2375 /*****************************************************************************
2376  *
2377  *      ClearTxRing - remove all buffers from the transmit ring
2378  *
2379  * Description:
2380  *      This function removes all transmit buffers from the ring.
2381  *      The transmit BMU must be stopped before calling this function
2382  *      and transmitting at the upper level must be disabled.
2383  *      The BMU own bit of all descriptors is cleared, the rest is
2384  *      done by calling FreeTxDescriptors.
2385  *
2386  * Returns: N/A
2387  */
2388 static void ClearTxRing(
2389 SK_AC   *pAC,           /* pointer to adapter context */
2390 TX_PORT *pTxPort)       /* pointer to tx prt struct */
2391 {
2392 TXD             *pTxd;          /* pointer to the current descriptor */
2393 int             i;
2394 unsigned long   Flags;
2395
2396         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2397         pTxd = pTxPort->pTxdRingHead;
2398         for (i=0; i<pAC->TxDescrPerRing; i++) {
2399                 pTxd->TBControl &= ~BMU_OWN;
2400                 pTxd = pTxd->pNextTxd;
2401         }
2402         FreeTxDescriptors(pAC, pTxPort);
2403         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2404 } /* ClearTxRing */
2405
2406 /*****************************************************************************
2407  *
2408  *      SkGeSetMacAddr - Set the hardware MAC address
2409  *
2410  * Description:
2411  *      This function sets the MAC address used by the adapter.
2412  *
2413  * Returns:
2414  *      0, if everything is ok
2415  *      !=0, on error
2416  */
2417 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
2418 {
2419
2420 DEV_NET *pNet = netdev_priv(dev);
2421 SK_AC   *pAC = pNet->pAC;
2422
2423 struct sockaddr *addr = p;
2424 unsigned long   Flags;
2425
2426         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2427                 ("SkGeSetMacAddr starts now...\n"));
2428         if(netif_running(dev))
2429                 return -EBUSY;
2430
2431         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
2432
2433         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2434
2435         if (pAC->RlmtNets == 2)
2436                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
2437                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2438         else
2439                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
2440                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2441
2442
2443
2444         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2445         return 0;
2446 } /* SkGeSetMacAddr */
2447
2448
2449 /*****************************************************************************
2450  *
2451  *      SkGeSetRxMode - set receive mode
2452  *
2453  * Description:
2454  *      This function sets the receive mode of an adapter. The adapter
2455  *      supports promiscuous mode, allmulticast mode and a number of
2456  *      multicast addresses. If more multicast addresses the available
2457  *      are selected, a hash function in the hardware is used.
2458  *
2459  * Returns:
2460  *      0, if everything is ok
2461  *      !=0, on error
2462  */
2463 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
2464 {
2465
2466 DEV_NET         *pNet;
2467 SK_AC           *pAC;
2468
2469 struct dev_mc_list      *pMcList;
2470 int                     i;
2471 int                     PortIdx;
2472 unsigned long           Flags;
2473
2474         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2475                 ("SkGeSetRxMode starts now... "));
2476
2477         pNet = netdev_priv(dev);
2478         pAC = pNet->pAC;
2479         if (pAC->RlmtNets == 1)
2480                 PortIdx = pAC->ActivePort;
2481         else
2482                 PortIdx = pNet->NetNr;
2483
2484         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2485         if (dev->flags & IFF_PROMISC) {
2486                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2487                         ("PROMISCUOUS mode\n"));
2488                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2489                         SK_PROM_MODE_LLC);
2490         } else if (dev->flags & IFF_ALLMULTI) {
2491                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2492                         ("ALLMULTI mode\n"));
2493                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2494                         SK_PROM_MODE_ALL_MC);
2495         } else {
2496                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2497                         SK_PROM_MODE_NONE);
2498                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
2499
2500                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2501                         ("Number of MC entries: %d ", dev->mc_count));
2502
2503                 pMcList = dev->mc_list;
2504                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
2505                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
2506                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
2507                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
2508                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
2509                                 pMcList->dmi_addr[0],
2510                                 pMcList->dmi_addr[1],
2511                                 pMcList->dmi_addr[2],
2512                                 pMcList->dmi_addr[3],
2513                                 pMcList->dmi_addr[4],
2514                                 pMcList->dmi_addr[5]));
2515                 }
2516                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
2517         }
2518         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2519
2520         return;
2521 } /* SkGeSetRxMode */
2522
2523
2524 /*****************************************************************************
2525  *
2526  *      SkGeChangeMtu - set the MTU to another value
2527  *
2528  * Description:
2529  *      This function sets is called whenever the MTU size is changed
2530  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
2531  *      ethernet MTU size, long frame support is activated.
2532  *
2533  * Returns:
2534  *      0, if everything is ok
2535  *      !=0, on error
2536  */
2537 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
2538 {
2539 DEV_NET         *pNet;
2540 struct net_device *pOtherDev;
2541 SK_AC           *pAC;
2542 unsigned long   Flags;
2543 int             i;
2544 SK_EVPARA       EvPara;
2545
2546         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2547                 ("SkGeChangeMtu starts now...\n"));
2548
2549         pNet = netdev_priv(dev);
2550         pAC  = pNet->pAC;
2551
2552         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
2553                 return -EINVAL;
2554         }
2555
2556         if(pAC->BoardLevel != SK_INIT_RUN) {
2557                 return -EINVAL;
2558         }
2559
2560 #ifdef SK_DIAG_SUPPORT
2561         if (pAC->DiagModeActive == DIAG_ACTIVE) {
2562                 if (pAC->DiagFlowCtrl == SK_FALSE) {
2563                         return -1; /* still in use, deny any actions of MTU */
2564                 } else {
2565                         pAC->DiagFlowCtrl = SK_FALSE;
2566                 }
2567         }
2568 #endif
2569
2570         pOtherDev = pAC->dev[1 - pNet->NetNr];
2571
2572         if ( netif_running(pOtherDev) && (pOtherDev->mtu > 1500)
2573              && (NewMtu <= 1500))
2574                 return 0;
2575
2576         pAC->RxBufSize = NewMtu + 32;
2577         dev->mtu = NewMtu;
2578
2579         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2580                 ("New MTU: %d\n", NewMtu));
2581
2582         /*
2583         ** Prevent any reconfiguration while changing the MTU
2584         ** by disabling any interrupts
2585         */
2586         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
2587         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2588
2589         /*
2590         ** Notify RLMT that any ports are to be stopped
2591         */
2592         EvPara.Para32[0] =  0;
2593         EvPara.Para32[1] = -1;
2594         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2595                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2596                 EvPara.Para32[0] =  1;
2597                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2598         } else {
2599                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2600         }
2601
2602         /*
2603         ** After calling the SkEventDispatcher(), RLMT is aware about
2604         ** the stopped ports -> configuration can take place!
2605         */
2606         SkEventDispatcher(pAC, pAC->IoBase);
2607
2608         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2609                 spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2610                 netif_stop_queue(pAC->dev[i]);
2611
2612         }
2613
2614         /*
2615         ** Depending on the desired MTU size change, a different number of
2616         ** RX buffers need to be allocated
2617         */
2618         if (NewMtu > 1500) {
2619             /*
2620             ** Use less rx buffers
2621             */
2622             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2623                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2624                     pAC->RxPort[i].RxFillLimit =  pAC->RxDescrPerRing -
2625                                                  (pAC->RxDescrPerRing / 4);
2626                 } else {
2627                     if (i == pAC->ActivePort) {
2628                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2629                                                     (pAC->RxDescrPerRing / 4);
2630                     } else {
2631                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2632                                                     (pAC->RxDescrPerRing / 10);
2633                     }
2634                 }
2635             }
2636         } else {
2637             /*
2638             ** Use the normal amount of rx buffers
2639             */
2640             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2641                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2642                     pAC->RxPort[i].RxFillLimit = 1;
2643                 } else {
2644                     if (i == pAC->ActivePort) {
2645                         pAC->RxPort[i].RxFillLimit = 1;
2646                     } else {
2647                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2648                                                     (pAC->RxDescrPerRing / 4);
2649                     }
2650                 }
2651             }
2652         }
2653
2654         SkGeDeInit(pAC, pAC->IoBase);
2655
2656         /*
2657         ** enable/disable hardware support for long frames
2658         */
2659         if (NewMtu > 1500) {
2660 // pAC->JumboActivated = SK_TRUE; /* is never set back !!! */
2661                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
2662         } else {
2663             if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2664                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
2665             } else {
2666                 pAC->GIni.GIPortUsage = SK_RED_LINK;
2667             }
2668         }
2669
2670         SkGeInit(   pAC, pAC->IoBase, SK_INIT_IO);
2671         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
2672         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
2673         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
2674         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
2675         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
2676         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
2677
2678         /*
2679         ** tschilling:
2680         ** Speed and others are set back to default in level 1 init!
2681         */
2682         GetConfiguration(pAC);
2683
2684         SkGeInit(   pAC, pAC->IoBase, SK_INIT_RUN);
2685         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_RUN);
2686         SkEventInit(pAC, pAC->IoBase, SK_INIT_RUN);
2687         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_RUN);
2688         SkAddrInit( pAC, pAC->IoBase, SK_INIT_RUN);
2689         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_RUN);
2690         SkTimerInit(pAC, pAC->IoBase, SK_INIT_RUN);
2691
2692         /*
2693         ** clear and reinit the rx rings here
2694         */
2695         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2696                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
2697                 ClearRxRing(pAC, &pAC->RxPort[i]);
2698                 FillRxRing(pAC, &pAC->RxPort[i]);
2699
2700                 /*
2701                 ** Enable transmit descriptor polling
2702                 */
2703                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
2704                 FillRxRing(pAC, &pAC->RxPort[i]);
2705         };
2706
2707         SkGeYellowLED(pAC, pAC->IoBase, 1);
2708         SkDimEnableModerationIfNeeded(pAC);
2709         SkDimDisplayModerationSettings(pAC);
2710
2711         netif_start_queue(pAC->dev[pNet->PortNr]);
2712         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
2713                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2714         }
2715
2716         /*
2717         ** Enable Interrupts again
2718         */
2719         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
2720         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
2721
2722         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2723         SkEventDispatcher(pAC, pAC->IoBase);
2724
2725         /*
2726         ** Notify RLMT about the changing and restarting one (or more) ports
2727         */
2728         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2729                 EvPara.Para32[0] = pAC->RlmtNets;
2730                 EvPara.Para32[1] = -1;
2731                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, EvPara);
2732                 EvPara.Para32[0] = pNet->PortNr;
2733                 EvPara.Para32[1] = -1;
2734                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2735
2736                 if (netif_running(pOtherDev)) {
2737                         DEV_NET *pOtherNet = netdev_priv(pOtherDev);
2738                         EvPara.Para32[0] = pOtherNet->PortNr;
2739                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2740                 }
2741         } else {
2742                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2743         }
2744
2745         SkEventDispatcher(pAC, pAC->IoBase);
2746         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2747
2748         /*
2749         ** While testing this driver with latest kernel 2.5 (2.5.70), it
2750         ** seems as if upper layers have a problem to handle a successful
2751         ** return value of '0'. If such a zero is returned, the complete
2752         ** system hangs for several minutes (!), which is in acceptable.
2753         **
2754         ** Currently it is not clear, what the exact reason for this problem
2755         ** is. The implemented workaround for 2.5 is to return the desired
2756         ** new MTU size if all needed changes for the new MTU size where
2757         ** performed. In kernels 2.2 and 2.4, a zero value is returned,
2758         ** which indicates the successful change of the mtu-size.
2759         */
2760         return NewMtu;
2761
2762 } /* SkGeChangeMtu */
2763
2764
2765 /*****************************************************************************
2766  *
2767  *      SkGeStats - return ethernet device statistics
2768  *
2769  * Description:
2770  *      This function return statistic data about the ethernet device
2771  *      to the operating system.
2772  *
2773  * Returns:
2774  *      pointer to the statistic structure.
2775  */
2776 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
2777 {
2778 DEV_NET *pNet = netdev_priv(dev);
2779 SK_AC   *pAC = pNet->pAC;
2780 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
2781 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
2782 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
2783 unsigned int    Size;                   /* size of pnmi struct */
2784 unsigned long   Flags;                  /* for spin lock */
2785
2786         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2787                 ("SkGeStats starts now...\n"));
2788         pPnmiStruct = &pAC->PnmiStruct;
2789
2790 #ifdef SK_DIAG_SUPPORT
2791         if ((pAC->DiagModeActive == DIAG_NOTACTIVE) &&
2792                 (pAC->BoardLevel == SK_INIT_RUN)) {
2793 #endif
2794         SK_MEMSET(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
2795         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2796         Size = SK_PNMI_STRUCT_SIZE;
2797                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
2798         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2799 #ifdef SK_DIAG_SUPPORT
2800         }
2801 #endif
2802
2803         pPnmiStat = &pPnmiStruct->Stat[0];
2804         pPnmiConf = &pPnmiStruct->Conf[0];
2805
2806         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
2807         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
2808         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
2809         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
2810
2811         if (dev->mtu <= 1500) {
2812                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
2813         } else {
2814                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
2815                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
2816         }
2817
2818
2819         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
2820                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
2821
2822         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2823         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
2824         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
2825         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
2826         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2827
2828         /* detailed rx_errors: */
2829         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
2830         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2831         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
2832         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
2833         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2834         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
2835
2836         /* detailed tx_errors */
2837         pAC->stats.tx_aborted_errors = (SK_U32) 0;
2838         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2839         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
2840         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2841         pAC->stats.tx_window_errors = (SK_U32) 0;
2842
2843         return(&pAC->stats);
2844 } /* SkGeStats */
2845
2846 /*
2847  * Basic MII register access
2848  */
2849 static int SkGeMiiIoctl(struct net_device *dev,
2850                         struct mii_ioctl_data *data, int cmd)
2851 {
2852         DEV_NET *pNet = netdev_priv(dev);
2853         SK_AC *pAC = pNet->pAC;
2854         SK_IOC IoC = pAC->IoBase;
2855         int Port = pNet->PortNr;
2856         SK_GEPORT *pPrt = &pAC->GIni.GP[Port];
2857         unsigned long Flags;
2858         int err = 0;
2859         int reg = data->reg_num & 0x1f;
2860         SK_U16 val = data->val_in;
2861
2862         if (!netif_running(dev))
2863                 return -ENODEV; /* Phy still in reset */
2864
2865         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2866         switch(cmd) {
2867         case SIOCGMIIPHY:
2868                 data->phy_id = pPrt->PhyAddr;
2869
2870                 /* fallthru */
2871         case SIOCGMIIREG:
2872                 if (pAC->GIni.GIGenesis)
2873                         SkXmPhyRead(pAC, IoC, Port, reg, &val);
2874                 else
2875                         SkGmPhyRead(pAC, IoC, Port, reg, &val);
2876
2877                 data->val_out = val;
2878                 break;
2879
2880         case SIOCSMIIREG:
2881                 if (!capable(CAP_NET_ADMIN))
2882                         err = -EPERM;
2883
2884                 else if (pAC->GIni.GIGenesis)
2885                         SkXmPhyWrite(pAC, IoC, Port, reg, val);
2886                 else
2887                         SkGmPhyWrite(pAC, IoC, Port, reg, val);
2888                 break;
2889         default:
2890                 err = -EOPNOTSUPP;
2891         }
2892         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2893         return err;
2894 }
2895
2896
2897 /*****************************************************************************
2898  *
2899  *      SkGeIoctl - IO-control function
2900  *
2901  * Description:
2902  *      This function is called if an ioctl is issued on the device.
2903  *      There are three subfunction for reading, writing and test-writing
2904  *      the private MIB data structure (useful for SysKonnect-internal tools).
2905  *
2906  * Returns:
2907  *      0, if everything is ok
2908  *      !=0, on error
2909  */
2910 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
2911 {
2912 DEV_NET         *pNet;
2913 SK_AC           *pAC;
2914 void            *pMemBuf;
2915 struct pci_dev  *pdev = NULL;
2916 SK_GE_IOCTL     Ioctl;
2917 unsigned int    Err = 0;
2918 int             Size = 0;
2919 int             Ret = 0;
2920 unsigned int    Length = 0;
2921 int             HeaderLength = sizeof(SK_U32) + sizeof(SK_U32);
2922
2923         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2924                 ("SkGeIoctl starts now...\n"));
2925
2926         pNet = netdev_priv(dev);
2927         pAC = pNet->pAC;
2928
2929         if (cmd == SIOCGMIIPHY || cmd == SIOCSMIIREG || cmd == SIOCGMIIREG)
2930             return SkGeMiiIoctl(dev, if_mii(rq), cmd);
2931
2932         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
2933                 return -EFAULT;
2934         }
2935
2936         switch(cmd) {
2937         case SK_IOCTL_SETMIB:
2938         case SK_IOCTL_PRESETMIB:
2939                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2940         case SK_IOCTL_GETMIB:
2941                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
2942                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
2943                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
2944                         return -EFAULT;
2945                 }
2946                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
2947                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
2948                         Ioctl.Len<Size? Ioctl.Len : Size)) {
2949                         return -EFAULT;
2950                 }
2951                 Ioctl.Len = Size;
2952                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2953                         return -EFAULT;
2954                 }
2955                 break;
2956         case SK_IOCTL_GEN:
2957                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2958                         Length = Ioctl.Len;
2959                 } else {
2960                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2961                 }
2962                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2963                         return -ENOMEM;
2964                 }
2965                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2966                         Err = -EFAULT;
2967                         goto fault_gen;
2968                 }
2969                 if ((Ret = SkPnmiGenIoctl(pAC, pAC->IoBase, pMemBuf, &Length, 0)) < 0) {
2970                         Err = -EFAULT;
2971                         goto fault_gen;
2972                 }
2973                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2974                         Err = -EFAULT;
2975                         goto fault_gen;
2976                 }
2977                 Ioctl.Len = Length;
2978                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2979                         Err = -EFAULT;
2980                         goto fault_gen;
2981                 }
2982 fault_gen:
2983                 kfree(pMemBuf); /* cleanup everything */
2984                 break;
2985 #ifdef SK_DIAG_SUPPORT
2986        case SK_IOCTL_DIAG:
2987                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2988                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2989                         Length = Ioctl.Len;
2990                 } else {
2991                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2992                 }
2993                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2994                         return -ENOMEM;
2995                 }
2996                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2997                         Err = -EFAULT;
2998                         goto fault_diag;
2999                 }
3000                 pdev = pAC->PciDev;
3001                 Length = 3 * sizeof(SK_U32);  /* Error, Bus and Device */
3002                 /*
3003                 ** While coding this new IOCTL interface, only a few lines of code
3004                 ** are to to be added. Therefore no dedicated function has been
3005                 ** added. If more functionality is added, a separate function
3006                 ** should be used...
3007                 */
3008                 * ((SK_U32 *)pMemBuf) = 0;
3009                 * ((SK_U32 *)pMemBuf + 1) = pdev->bus->number;
3010                 * ((SK_U32 *)pMemBuf + 2) = ParseDeviceNbrFromSlotName(pci_name(pdev));
3011                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
3012                         Err = -EFAULT;
3013                         goto fault_diag;
3014                 }
3015                 Ioctl.Len = Length;
3016                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
3017                         Err = -EFAULT;
3018                         goto fault_diag;
3019                 }
3020 fault_diag:
3021                 kfree(pMemBuf); /* cleanup everything */
3022                 break;
3023 #endif
3024         default:
3025                 Err = -EOPNOTSUPP;
3026         }
3027
3028         return(Err);
3029
3030 } /* SkGeIoctl */
3031
3032
3033 /*****************************************************************************
3034  *
3035  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
3036  *
3037  * Description:
3038  *      This function reads/writes the MIB data using PNMI (Private Network
3039  *      Management Interface).
3040  *      The destination for the data must be provided with the
3041  *      ioctl call and is given to the driver in the form of
3042  *      a user space address.
3043  *      Copying from the user-provided data area into kernel messages
3044  *      and back is done by copy_from_user and copy_to_user calls in
3045  *      SkGeIoctl.
3046  *
3047  * Returns:
3048  *      returned size from PNMI call
3049  */
3050 static int SkGeIocMib(
3051 DEV_NET         *pNet,  /* pointer to the adapter context */
3052 unsigned int    Size,   /* length of ioctl data */
3053 int             mode)   /* flag for set/preset */
3054 {
3055 unsigned long   Flags;  /* for spin lock */
3056 SK_AC           *pAC;
3057
3058         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3059                 ("SkGeIocMib starts now...\n"));
3060         pAC = pNet->pAC;
3061         /* access MIB */
3062         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3063         switch(mode) {
3064         case SK_IOCTL_GETMIB:
3065                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3066                         pNet->NetNr);
3067                 break;
3068         case SK_IOCTL_PRESETMIB:
3069                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3070                         pNet->NetNr);
3071                 break;
3072         case SK_IOCTL_SETMIB:
3073                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3074                         pNet->NetNr);
3075                 break;
3076         default:
3077                 break;
3078         }
3079         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3080         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3081                 ("MIB data access succeeded\n"));
3082         return (Size);
3083 } /* SkGeIocMib */
3084
3085
3086 /*****************************************************************************
3087  *
3088  *      GetConfiguration - read configuration information
3089  *
3090  * Description:
3091  *      This function reads per-adapter configuration information from
3092  *      the options provided on the command line.
3093  *
3094  * Returns:
3095  *      none
3096  */
3097 static void GetConfiguration(
3098 SK_AC   *pAC)   /* pointer to the adapter context structure */
3099 {
3100 SK_I32  Port;           /* preferred port */
3101 SK_BOOL AutoSet;
3102 SK_BOOL DupSet;
3103 int     LinkSpeed          = SK_LSPEED_AUTO;    /* Link speed */
3104 int     AutoNeg            = 1;                 /* autoneg off (0) or on (1) */
3105 int     DuplexCap          = 0;                 /* 0=both,1=full,2=half */
3106 int     FlowCtrl           = SK_FLOW_MODE_SYM_OR_REM;   /* FlowControl  */
3107 int     MSMode             = SK_MS_MODE_AUTO;   /* master/slave mode    */
3108
3109 SK_BOOL IsConTypeDefined   = SK_TRUE;
3110 SK_BOOL IsLinkSpeedDefined = SK_TRUE;
3111 SK_BOOL IsFlowCtrlDefined  = SK_TRUE;
3112 SK_BOOL IsRoleDefined      = SK_TRUE;
3113 SK_BOOL IsModeDefined      = SK_TRUE;
3114 /*
3115  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3116  *      parameter. The mapping is described by this table:
3117  *      DuplexCap ->    |       both    |       full    |       half    |
3118  *      AutoNeg         |               |               |               |
3119  *      -----------------------------------------------------------------
3120  *      Off             |    illegal    |       Full    |       Half    |
3121  *      -----------------------------------------------------------------
3122  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3123  *      -----------------------------------------------------------------
3124  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3125  */
3126 int     Capabilities[3][3] =
3127                 { {                -1, SK_LMODE_FULL     , SK_LMODE_HALF     },
3128                   {SK_LMODE_AUTOBOTH , SK_LMODE_AUTOFULL , SK_LMODE_AUTOHALF },
3129                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3130
3131 #define DC_BOTH 0
3132 #define DC_FULL 1
3133 #define DC_HALF 2
3134 #define AN_OFF  0
3135 #define AN_ON   1
3136 #define AN_SENS 2
3137 #define M_CurrPort pAC->GIni.GP[Port]
3138
3139
3140         /*
3141         ** Set the default values first for both ports!
3142         */
3143         for (Port = 0; Port < SK_MAX_MACS; Port++) {
3144                 M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3145                 M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3146                 M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3147                 M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3148         }
3149
3150         /*
3151         ** Check merged parameter ConType. If it has not been used,
3152         ** verify any other parameter (e.g. AutoNeg) and use default values.
3153         **
3154         ** Stating both ConType and other lowlevel link parameters is also
3155         ** possible. If this is the case, the passed ConType-parameter is
3156         ** overwritten by the lowlevel link parameter.
3157         **
3158         ** The following settings are used for a merged ConType-parameter:
3159         **
3160         ** ConType   DupCap   AutoNeg   FlowCtrl      Role      Speed
3161         ** -------   ------   -------   --------   ----------   -----
3162         **  Auto      Both      On      SymOrRem      Auto       Auto
3163         **  100FD     Full      Off       None      <ignored>    100
3164         **  100HD     Half      Off       None      <ignored>    100
3165         **  10FD      Full      Off       None      <ignored>    10
3166         **  10HD      Half      Off       None      <ignored>    10
3167         **
3168         ** This ConType parameter is used for all ports of the adapter!
3169         */
3170         if ( (ConType != NULL)                &&
3171              (pAC->Index < SK_MAX_CARD_PARAM) &&
3172              (ConType[pAC->Index] != NULL) ) {
3173
3174                         /* Check chipset family */
3175                         if ((!pAC->ChipsetType) &&
3176                                 (strcmp(ConType[pAC->Index],"Auto")!=0) &&
3177                                 (strcmp(ConType[pAC->Index],"")!=0)) {
3178                                 /* Set the speed parameter back */
3179                                         printk("sk98lin: Illegal value \"%s\" "
3180                                                         "for ConType."
3181                                                         " Using Auto.\n",
3182                                                         ConType[pAC->Index]);
3183
3184                                         sprintf(ConType[pAC->Index], "Auto");
3185                         }
3186
3187                                 if (strcmp(ConType[pAC->Index],"")==0) {
3188                         IsConTypeDefined = SK_FALSE; /* No ConType defined */
3189                                 } else if (strcmp(ConType[pAC->Index],"Auto")==0) {
3190                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3191                         M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3192                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3193                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3194                         M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3195                     }
3196                 } else if (strcmp(ConType[pAC->Index],"100FD")==0) {
3197                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3198                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3199                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3200                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3201                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3202                     }
3203                 } else if (strcmp(ConType[pAC->Index],"100HD")==0) {
3204                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3205                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3206                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3207                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3208                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3209                     }
3210                 } else if (strcmp(ConType[pAC->Index],"10FD")==0) {
3211                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3212                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3213                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3214                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3215                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3216                     }
3217                 } else if (strcmp(ConType[pAC->Index],"10HD")==0) {
3218                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3219                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3220                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3221                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3222                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3223                     }
3224                 } else {
3225                     printk("sk98lin: Illegal value \"%s\" for ConType\n",
3226                         ConType[pAC->Index]);
3227                     IsConTypeDefined = SK_FALSE; /* Wrong ConType defined */
3228                 }
3229         } else {
3230             IsConTypeDefined = SK_FALSE; /* No ConType defined */
3231         }
3232
3233         /*
3234         ** Parse any parameter settings for port A:
3235         ** a) any LinkSpeed stated?
3236         */
3237         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3238                 Speed_A[pAC->Index] != NULL) {
3239                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3240                     IsLinkSpeedDefined = SK_FALSE;
3241                 } else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3242                     LinkSpeed = SK_LSPEED_AUTO;
3243                 } else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3244                     LinkSpeed = SK_LSPEED_10MBPS;
3245                 } else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3246                     LinkSpeed = SK_LSPEED_100MBPS;
3247                 } else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3248                     LinkSpeed = SK_LSPEED_1000MBPS;
3249                 } else {
3250                     printk("sk98lin: Illegal value \"%s\" for Speed_A\n",
3251                         Speed_A[pAC->Index]);
3252                     IsLinkSpeedDefined = SK_FALSE;
3253                 }
3254         } else {
3255             IsLinkSpeedDefined = SK_FALSE;
3256         }
3257
3258         /*
3259         ** Check speed parameter:
3260         **    Only copper type adapter and GE V2 cards
3261         */
3262         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3263                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3264                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3265                 printk("sk98lin: Illegal value for Speed_A. "
3266                         "Not a copper card or GE V2 card\n    Using "
3267                         "speed 1000\n");
3268                 LinkSpeed = SK_LSPEED_1000MBPS;
3269         }
3270
3271         /*
3272         ** Decide whether to set new config value if somethig valid has
3273         ** been received.
3274         */
3275         if (IsLinkSpeedDefined) {
3276                 pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3277         }
3278
3279         /*
3280         ** b) Any Autonegotiation and DuplexCapabilities set?
3281         **    Please note that both belong together...
3282         */
3283         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3284         AutoSet = SK_FALSE;
3285         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3286                 AutoNeg_A[pAC->Index] != NULL) {
3287                 AutoSet = SK_TRUE;
3288                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3289                     AutoSet = SK_FALSE;
3290                 } else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3291                     AutoNeg = AN_ON;
3292                 } else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3293                     AutoNeg = AN_OFF;
3294                 } else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3295                     AutoNeg = AN_SENS;
3296                 } else {
3297                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_A\n",
3298                         AutoNeg_A[pAC->Index]);
3299                 }
3300         }
3301
3302         DuplexCap = DC_BOTH;
3303         DupSet    = SK_FALSE;
3304         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3305                 DupCap_A[pAC->Index] != NULL) {
3306                 DupSet = SK_TRUE;
3307                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3308                     DupSet = SK_FALSE;
3309                 } else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3310                     DuplexCap = DC_BOTH;
3311                 } else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3312                     DuplexCap = DC_FULL;
3313                 } else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3314                     DuplexCap = DC_HALF;
3315                 } else {
3316                     printk("sk98lin: Illegal value \"%s\" for DupCap_A\n",
3317                         DupCap_A[pAC->Index]);
3318                 }
3319         }
3320
3321         /*
3322         ** Check for illegal combinations
3323         */
3324         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3325                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3326                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3327                 (pAC->ChipsetType)) {
3328                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3329                                         "    Using Full Duplex.\n");
3330                                 DuplexCap = DC_FULL;
3331         }
3332
3333         if ( AutoSet && AutoNeg==AN_SENS && DupSet) {
3334                 printk("sk98lin, Port A: DuplexCapabilities"
3335                         " ignored using Sense mode\n");
3336         }
3337
3338         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3339                 printk("sk98lin: Port A: Illegal combination"
3340                         " of values AutoNeg. and DuplexCap.\n    Using "
3341                         "Full Duplex\n");
3342                 DuplexCap = DC_FULL;
3343         }
3344
3345         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3346                 DuplexCap = DC_FULL;
3347         }
3348
3349         if (!AutoSet && DupSet) {
3350                 printk("sk98lin: Port A: Duplex setting not"
3351                         " possible in\n    default AutoNegotiation mode"
3352                         " (Sense).\n    Using AutoNegotiation On\n");
3353                 AutoNeg = AN_ON;
3354         }
3355
3356         /*
3357         ** set the desired mode
3358         */
3359         if (AutoSet || DupSet) {
3360             pAC->GIni.GP[0].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3361         }
3362
3363         /*
3364         ** c) Any Flowcontrol-parameter set?
3365         */
3366         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3367                 FlowCtrl_A[pAC->Index] != NULL) {
3368                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3369                     IsFlowCtrlDefined = SK_FALSE;
3370                 } else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3371                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3372                 } else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3373                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3374                 } else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3375                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3376                 } else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3377                     FlowCtrl = SK_FLOW_MODE_NONE;
3378                 } else {
3379                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_A\n",
3380                         FlowCtrl_A[pAC->Index]);
3381                     IsFlowCtrlDefined = SK_FALSE;
3382                 }
3383         } else {
3384            IsFlowCtrlDefined = SK_FALSE;
3385         }
3386
3387         if (IsFlowCtrlDefined) {
3388             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3389                 printk("sk98lin: Port A: FlowControl"
3390                         " impossible without AutoNegotiation,"
3391                         " disabled\n");
3392                 FlowCtrl = SK_FLOW_MODE_NONE;
3393             }
3394             pAC->GIni.GP[0].PFlowCtrlMode = FlowCtrl;
3395         }
3396
3397         /*
3398         ** d) What is with the RoleParameter?
3399         */
3400         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3401                 Role_A[pAC->Index] != NULL) {
3402                 if (strcmp(Role_A[pAC->Index],"")==0) {
3403                    IsRoleDefined = SK_FALSE;
3404                 } else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3405                     MSMode = SK_MS_MODE_AUTO;
3406                 } else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3407                     MSMode = SK_MS_MODE_MASTER;
3408                 } else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3409                     MSMode = SK_MS_MODE_SLAVE;
3410                 } else {
3411                     printk("sk98lin: Illegal value \"%s\" for Role_A\n",
3412                         Role_A[pAC->Index]);
3413                     IsRoleDefined = SK_FALSE;
3414                 }
3415         } else {
3416            IsRoleDefined = SK_FALSE;
3417         }
3418
3419         if (IsRoleDefined == SK_TRUE) {
3420             pAC->GIni.GP[0].PMSMode = MSMode;
3421         }
3422
3423
3424
3425         /*
3426         ** Parse any parameter settings for port B:
3427         ** a) any LinkSpeed stated?
3428         */
3429         IsConTypeDefined   = SK_TRUE;
3430         IsLinkSpeedDefined = SK_TRUE;
3431         IsFlowCtrlDefined  = SK_TRUE;
3432         IsModeDefined      = SK_TRUE;
3433
3434         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3435                 Speed_B[pAC->Index] != NULL) {
3436                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3437                     IsLinkSpeedDefined = SK_FALSE;
3438                 } else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3439                     LinkSpeed = SK_LSPEED_AUTO;
3440                 } else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3441                     LinkSpeed = SK_LSPEED_10MBPS;
3442                 } else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3443                     LinkSpeed = SK_LSPEED_100MBPS;
3444                 } else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3445                     LinkSpeed = SK_LSPEED_1000MBPS;
3446                 } else {
3447                     printk("sk98lin: Illegal value \"%s\" for Speed_B\n",
3448                         Speed_B[pAC->Index]);
3449                     IsLinkSpeedDefined = SK_FALSE;
3450                 }
3451         } else {
3452             IsLinkSpeedDefined = SK_FALSE;
3453         }
3454
3455         /*
3456         ** Check speed parameter:
3457         **    Only copper type adapter and GE V2 cards
3458         */
3459         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3460                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3461                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3462                 printk("sk98lin: Illegal value for Speed_B. "
3463                         "Not a copper card or GE V2 card\n    Using "
3464                         "speed 1000\n");
3465                 LinkSpeed = SK_LSPEED_1000MBPS;
3466         }
3467
3468         /*
3469         ** Decide whether to set new config value if somethig valid has
3470         ** been received.
3471         */
3472         if (IsLinkSpeedDefined) {
3473             pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3474         }
3475
3476         /*
3477         ** b) Any Autonegotiation and DuplexCapabilities set?
3478         **    Please note that both belong together...
3479         */
3480         AutoNeg = AN_SENS; /* default: do auto Sense */
3481         AutoSet = SK_FALSE;
3482         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3483                 AutoNeg_B[pAC->Index] != NULL) {
3484                 AutoSet = SK_TRUE;
3485                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3486                     AutoSet = SK_FALSE;
3487                 } else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3488                     AutoNeg = AN_ON;
3489                 } else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3490                     AutoNeg = AN_OFF;
3491                 } else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3492                     AutoNeg = AN_SENS;
3493                 } else {
3494                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_B\n",
3495                         AutoNeg_B[pAC->Index]);
3496                 }
3497         }
3498
3499         DuplexCap = DC_BOTH;
3500         DupSet    = SK_FALSE;
3501         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3502                 DupCap_B[pAC->Index] != NULL) {
3503                 DupSet = SK_TRUE;
3504                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3505                     DupSet = SK_FALSE;
3506                 } else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3507                     DuplexCap = DC_BOTH;
3508                 } else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3509                     DuplexCap = DC_FULL;
3510                 } else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3511                     DuplexCap = DC_HALF;
3512                 } else {
3513                     printk("sk98lin: Illegal value \"%s\" for DupCap_B\n",
3514                         DupCap_B[pAC->Index]);
3515                 }
3516         }
3517
3518
3519         /*
3520         ** Check for illegal combinations
3521         */
3522         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3523                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3524                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3525                 (pAC->ChipsetType)) {
3526                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3527                                         "    Using Full Duplex.\n");
3528                                 DuplexCap = DC_FULL;
3529         }
3530
3531         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3532                 printk("sk98lin, Port B: DuplexCapabilities"
3533                         " ignored using Sense mode\n");
3534         }
3535
3536         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3537                 printk("sk98lin: Port B: Illegal combination"
3538                         " of values AutoNeg. and DuplexCap.\n    Using "
3539                         "Full Duplex\n");
3540                 DuplexCap = DC_FULL;
3541         }
3542
3543         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3544                 DuplexCap = DC_FULL;
3545         }
3546
3547         if (!AutoSet && DupSet) {
3548                 printk("sk98lin: Port B: Duplex setting not"
3549                         " possible in\n    default AutoNegotiation mode"
3550                         " (Sense).\n    Using AutoNegotiation On\n");
3551                 AutoNeg = AN_ON;
3552         }
3553
3554         /*
3555         ** set the desired mode
3556         */
3557         if (AutoSet || DupSet) {
3558             pAC->GIni.GP[1].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3559         }
3560
3561         /*
3562         ** c) Any FlowCtrl parameter set?
3563         */
3564         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3565                 FlowCtrl_B[pAC->Index] != NULL) {
3566                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3567                     IsFlowCtrlDefined = SK_FALSE;
3568                 } else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3569                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3570                 } else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3571                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3572                 } else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
3573                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3574                 } else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
3575                     FlowCtrl = SK_FLOW_MODE_NONE;
3576                 } else {
3577                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_B\n",
3578                         FlowCtrl_B[pAC->Index]);
3579                     IsFlowCtrlDefined = SK_FALSE;
3580                 }
3581         } else {
3582                 IsFlowCtrlDefined = SK_FALSE;
3583         }
3584
3585         if (IsFlowCtrlDefined) {
3586             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3587                 printk("sk98lin: Port B: FlowControl"
3588                         " impossible without AutoNegotiation,"
3589                         " disabled\n");
3590                 FlowCtrl = SK_FLOW_MODE_NONE;
3591             }
3592             pAC->GIni.GP[1].PFlowCtrlMode = FlowCtrl;
3593         }
3594
3595         /*
3596         ** d) What is the RoleParameter?
3597         */
3598         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3599                 Role_B[pAC->Index] != NULL) {
3600                 if (strcmp(Role_B[pAC->Index],"")==0) {
3601                     IsRoleDefined = SK_FALSE;
3602                 } else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
3603                     MSMode = SK_MS_MODE_AUTO;
3604                 } else if (strcmp(Role_B[pAC->Index],"Master")==0) {
3605                     MSMode = SK_MS_MODE_MASTER;
3606                 } else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
3607                     MSMode = SK_MS_MODE_SLAVE;
3608                 } else {
3609                     printk("sk98lin: Illegal value \"%s\" for Role_B\n",
3610                         Role_B[pAC->Index]);
3611                     IsRoleDefined = SK_FALSE;
3612                 }
3613         } else {
3614             IsRoleDefined = SK_FALSE;
3615         }
3616
3617         if (IsRoleDefined) {
3618             pAC->GIni.GP[1].PMSMode = MSMode;
3619         }
3620
3621         /*
3622         ** Evaluate settings for both ports
3623         */
3624         pAC->ActivePort = 0;
3625         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3626                 PrefPort[pAC->Index] != NULL) {
3627                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
3628                         pAC->ActivePort             =  0;
3629                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
3630                         pAC->Rlmt.Net[0].PrefPort   =  0;
3631                 } else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
3632                         /*
3633                         ** do not set ActivePort here, thus a port
3634                         ** switch is issued after net up.
3635                         */
3636                         Port                        = 0;
3637                         pAC->Rlmt.Net[0].Preference = Port;
3638                         pAC->Rlmt.Net[0].PrefPort   = Port;
3639                 } else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
3640                         /*
3641                         ** do not set ActivePort here, thus a port
3642                         ** switch is issued after net up.
3643                         */
3644                         if (pAC->GIni.GIMacsFound == 1) {
3645                                 printk("sk98lin: Illegal value \"B\" for PrefPort.\n"
3646                                         "      Port B not available on single port adapters.\n");
3647
3648                                 pAC->ActivePort             =  0;
3649                                 pAC->Rlmt.Net[0].Preference = -1; /* auto */
3650                                 pAC->Rlmt.Net[0].PrefPort   =  0;
3651                         } else {
3652                                 Port                        = 1;
3653                                 pAC->Rlmt.Net[0].Preference = Port;
3654                                 pAC->Rlmt.Net[0].PrefPort   = Port;
3655                         }
3656                 } else {
3657                     printk("sk98lin: Illegal value \"%s\" for PrefPort\n",
3658                         PrefPort[pAC->Index]);
3659                 }
3660         }
3661
3662         pAC->RlmtNets = 1;
3663
3664         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3665                 RlmtMode[pAC->Index] != NULL) {
3666                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
3667                         pAC->RlmtMode = 0;
3668                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
3669                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3670                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
3671                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3672                                         SK_RLMT_CHECK_LOC_LINK;
3673                 } else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
3674                         pAC->RlmtMode = SK_RLMT_CHECK_LINK     |
3675                                         SK_RLMT_CHECK_LOC_LINK |
3676                                         SK_RLMT_CHECK_SEG;
3677                 } else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
3678                         (pAC->GIni.GIMacsFound == 2)) {
3679                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3680                         pAC->RlmtNets = 2;
3681                 } else {
3682                     printk("sk98lin: Illegal value \"%s\" for"
3683                         " RlmtMode, using default\n",
3684                         RlmtMode[pAC->Index]);
3685                         pAC->RlmtMode = 0;
3686                 }
3687         } else {
3688                 pAC->RlmtMode = 0;
3689         }
3690
3691         /*
3692         ** Check the interrupt moderation parameters
3693         */
3694         if (Moderation[pAC->Index] != NULL) {
3695                 if (strcmp(Moderation[pAC->Index], "") == 0) {
3696                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3697                 } else if (strcmp(Moderation[pAC->Index], "Static") == 0) {
3698                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_STATIC;
3699                 } else if (strcmp(Moderation[pAC->Index], "Dynamic") == 0) {
3700                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_DYNAMIC;
3701                 } else if (strcmp(Moderation[pAC->Index], "None") == 0) {
3702                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3703                 } else {
3704                         printk("sk98lin: Illegal value \"%s\" for Moderation.\n"
3705                                 "      Disable interrupt moderation.\n",
3706                                 Moderation[pAC->Index]);
3707                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3708                 }
3709         } else {
3710                 pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3711         }
3712
3713         if (Stats[pAC->Index] != NULL) {
3714                 if (strcmp(Stats[pAC->Index], "Yes") == 0) {
3715                         pAC->DynIrqModInfo.DisplayStats = SK_TRUE;
3716                 } else {
3717                         pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3718                 }
3719         } else {
3720                 pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3721         }
3722
3723         if (ModerationMask[pAC->Index] != NULL) {
3724                 if (strcmp(ModerationMask[pAC->Index], "Rx") == 0) {
3725                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3726                 } else if (strcmp(ModerationMask[pAC->Index], "Tx") == 0) {
3727                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_ONLY;
3728                 } else if (strcmp(ModerationMask[pAC->Index], "Sp") == 0) {
3729                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_ONLY;
3730                 } else if (strcmp(ModerationMask[pAC->Index], "RxSp") == 0) {
3731                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3732                 } else if (strcmp(ModerationMask[pAC->Index], "SpRx") == 0) {
3733                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3734                 } else if (strcmp(ModerationMask[pAC->Index], "RxTx") == 0) {
3735                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3736                 } else if (strcmp(ModerationMask[pAC->Index], "TxRx") == 0) {
3737                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3738                 } else if (strcmp(ModerationMask[pAC->Index], "TxSp") == 0) {
3739                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3740                 } else if (strcmp(ModerationMask[pAC->Index], "SpTx") == 0) {
3741                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3742                 } else if (strcmp(ModerationMask[pAC->Index], "RxTxSp") == 0) {
3743                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3744                 } else if (strcmp(ModerationMask[pAC->Index], "RxSpTx") == 0) {
3745                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3746                 } else if (strcmp(ModerationMask[pAC->Index], "TxRxSp") == 0) {
3747                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3748                 } else if (strcmp(ModerationMask[pAC->Index], "TxSpRx") == 0) {
3749                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3750                 } else if (strcmp(ModerationMask[pAC->Index], "SpTxRx") == 0) {
3751                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3752                 } else if (strcmp(ModerationMask[pAC->Index], "SpRxTx") == 0) {
3753                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3754                 } else { /* some rubbish */
3755                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3756                 }
3757         } else {  /* operator has stated nothing */
3758                 pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3759         }
3760
3761         if (AutoSizing[pAC->Index] != NULL) {
3762                 if (strcmp(AutoSizing[pAC->Index], "On") == 0) {
3763                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3764                 } else {
3765                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3766                 }
3767         } else {  /* operator has stated nothing */
3768                 pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3769         }
3770
3771         if (IntsPerSec[pAC->Index] != 0) {
3772                 if ((IntsPerSec[pAC->Index]< C_INT_MOD_IPS_LOWER_RANGE) ||
3773                         (IntsPerSec[pAC->Index] > C_INT_MOD_IPS_UPPER_RANGE)) {
3774                         printk("sk98lin: Illegal value \"%d\" for IntsPerSec. (Range: %d - %d)\n"
3775                                 "      Using default value of %i.\n",
3776                                 IntsPerSec[pAC->Index],
3777                                 C_INT_MOD_IPS_LOWER_RANGE,
3778                                 C_INT_MOD_IPS_UPPER_RANGE,
3779                                 C_INTS_PER_SEC_DEFAULT);
3780                         pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3781                 } else {
3782                         pAC->DynIrqModInfo.MaxModIntsPerSec = IntsPerSec[pAC->Index];
3783                 }
3784         } else {
3785                 pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3786         }
3787
3788         /*
3789         ** Evaluate upper and lower moderation threshold
3790         */
3791         pAC->DynIrqModInfo.MaxModIntsPerSecUpperLimit =
3792                 pAC->DynIrqModInfo.MaxModIntsPerSec +
3793                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3794
3795         pAC->DynIrqModInfo.MaxModIntsPerSecLowerLimit =
3796                 pAC->DynIrqModInfo.MaxModIntsPerSec -
3797                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3798
3799         pAC->DynIrqModInfo.PrevTimeVal = jiffies;  /* initial value */
3800
3801
3802 } /* GetConfiguration */
3803
3804
3805 /*****************************************************************************
3806  *
3807  *      ProductStr - return a adapter identification string from vpd
3808  *
3809  * Description:
3810  *      This function reads the product name string from the vpd area
3811  *      and puts it the field pAC->DeviceString.
3812  *
3813  * Returns: N/A
3814  */
3815 static inline int ProductStr(
3816         SK_AC   *pAC,           /* pointer to adapter context */
3817         char    *DeviceStr,     /* result string */
3818         int      StrLen         /* length of the string */
3819 )
3820 {
3821 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
3822 int     ReturnCode;             /* return code from vpd_read */
3823 unsigned long Flags;
3824
3825         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3826         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, DeviceStr, &StrLen);
3827         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3828
3829         return ReturnCode;
3830 } /* ProductStr */
3831
3832 /*****************************************************************************
3833  *
3834  *      StartDrvCleanupTimer - Start timer to check for descriptors which
3835  *                             might be placed in descriptor ring, but
3836  *                             havent been handled up to now
3837  *
3838  * Description:
3839  *      This function requests a HW-timer fo the Yukon card. The actions to
3840  *      perform when this timer expires, are located in the SkDrvEvent().
3841  *
3842  * Returns: N/A
3843  */
3844 static void
3845 StartDrvCleanupTimer(SK_AC *pAC) {
3846     SK_EVPARA    EventParam;   /* Event struct for timer event */
3847
3848     SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
3849     EventParam.Para32[0] = SK_DRV_RX_CLEANUP_TIMER;
3850     SkTimerStart(pAC, pAC->IoBase, &pAC->DrvCleanupTimer,
3851                  SK_DRV_RX_CLEANUP_TIMER_LENGTH,
3852                  SKGE_DRV, SK_DRV_TIMER, EventParam);
3853 }
3854
3855 /*****************************************************************************
3856  *
3857  *      StopDrvCleanupTimer - Stop timer to check for descriptors
3858  *
3859  * Description:
3860  *      This function requests a HW-timer fo the Yukon card. The actions to
3861  *      perform when this timer expires, are located in the SkDrvEvent().
3862  *
3863  * Returns: N/A
3864  */
3865 static void
3866 StopDrvCleanupTimer(SK_AC *pAC) {
3867     SkTimerStop(pAC, pAC->IoBase, &pAC->DrvCleanupTimer);
3868     SK_MEMSET((char *) &pAC->DrvCleanupTimer, 0, sizeof(SK_TIMER));
3869 }
3870
3871 /****************************************************************************/
3872 /* functions for common modules *********************************************/
3873 /****************************************************************************/
3874
3875
3876 /*****************************************************************************
3877  *
3878  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
3879  *
3880  * Description:
3881  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
3882  *      is embedded into a socket buff data area.
3883  *
3884  * Context:
3885  *      runtime
3886  *
3887  * Returns:
3888  *      NULL or pointer to Mbuf.
3889  */
3890 SK_MBUF *SkDrvAllocRlmtMbuf(
3891 SK_AC           *pAC,           /* pointer to adapter context */
3892 SK_IOC          IoC,            /* the IO-context */
3893 unsigned        BufferSize)     /* size of the requested buffer */
3894 {
3895 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
3896 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
3897
3898         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
3899         if (pMsgBlock == NULL) {
3900                 return (NULL);
3901         }
3902         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
3903         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
3904         pRlmtMbuf->pNext = NULL;
3905         pRlmtMbuf->pOs = pMsgBlock;
3906         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
3907         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
3908         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
3909         return (pRlmtMbuf);
3910
3911 } /* SkDrvAllocRlmtMbuf */
3912
3913
3914 /*****************************************************************************
3915  *
3916  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
3917  *
3918  * Description:
3919  *      This routine frees one or more RLMT mbuf(s).
3920  *
3921  * Context:
3922  *      runtime
3923  *
3924  * Returns:
3925  *      Nothing
3926  */
3927 void  SkDrvFreeRlmtMbuf(
3928 SK_AC           *pAC,           /* pointer to adapter context */
3929 SK_IOC          IoC,            /* the IO-context */
3930 SK_MBUF         *pMbuf)         /* size of the requested buffer */
3931 {
3932 SK_MBUF         *pFreeMbuf;
3933 SK_MBUF         *pNextMbuf;
3934
3935         pFreeMbuf = pMbuf;
3936         do {
3937                 pNextMbuf = pFreeMbuf->pNext;
3938                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
3939                 pFreeMbuf = pNextMbuf;
3940         } while ( pFreeMbuf != NULL );
3941 } /* SkDrvFreeRlmtMbuf */
3942
3943
3944 /*****************************************************************************
3945  *
3946  *      SkOsGetTime - provide a time value
3947  *
3948  * Description:
3949  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
3950  *      It is not used for absolute time, but only for time differences.
3951  *
3952  *
3953  * Returns:
3954  *      Time value
3955  */
3956 SK_U64 SkOsGetTime(SK_AC *pAC)
3957 {
3958         SK_U64  PrivateJiffies;
3959         SkOsGetTimeCurrent(pAC, &PrivateJiffies);
3960         return PrivateJiffies;
3961 } /* SkOsGetTime */
3962
3963
3964 /*****************************************************************************
3965  *
3966  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
3967  *
3968  * Description:
3969  *      This routine reads a 32 bit value from the pci configuration
3970  *      space.
3971  *
3972  * Returns:
3973  *      0 - indicate everything worked ok.
3974  *      != 0 - error indication
3975  */
3976 int SkPciReadCfgDWord(
3977 SK_AC *pAC,             /* Adapter Control structure pointer */
3978 int PciAddr,            /* PCI register address */
3979 SK_U32 *pVal)           /* pointer to store the read value */
3980 {
3981         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
3982         return(0);
3983 } /* SkPciReadCfgDWord */
3984
3985
3986 /*****************************************************************************
3987  *
3988  *      SkPciReadCfgWord - read a 16 bit value from pci config space
3989  *
3990  * Description:
3991  *      This routine reads a 16 bit value from the pci configuration
3992  *      space.
3993  *
3994  * Returns:
3995  *      0 - indicate everything worked ok.
3996  *      != 0 - error indication
3997  */
3998 int SkPciReadCfgWord(
3999 SK_AC *pAC,     /* Adapter Control structure pointer */
4000 int PciAddr,            /* PCI register address */
4001 SK_U16 *pVal)           /* pointer to store the read value */
4002 {
4003         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
4004         return(0);
4005 } /* SkPciReadCfgWord */
4006
4007
4008 /*****************************************************************************
4009  *
4010  *      SkPciReadCfgByte - read a 8 bit value from pci config space
4011  *
4012  * Description:
4013  *      This routine reads a 8 bit value from the pci configuration
4014  *      space.
4015  *
4016  * Returns:
4017  *      0 - indicate everything worked ok.
4018  *      != 0 - error indication
4019  */
4020 int SkPciReadCfgByte(
4021 SK_AC *pAC,     /* Adapter Control structure pointer */
4022 int PciAddr,            /* PCI register address */
4023 SK_U8 *pVal)            /* pointer to store the read value */
4024 {
4025         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
4026         return(0);
4027 } /* SkPciReadCfgByte */
4028
4029
4030 /*****************************************************************************
4031  *
4032  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
4033  *
4034  * Description:
4035  *      This routine writes a 16 bit value to the pci configuration
4036  *      space. The flag PciConfigUp indicates whether the config space
4037  *      is accesible or must be set up first.
4038  *
4039  * Returns:
4040  *      0 - indicate everything worked ok.
4041  *      != 0 - error indication
4042  */
4043 int SkPciWriteCfgWord(
4044 SK_AC *pAC,     /* Adapter Control structure pointer */
4045 int PciAddr,            /* PCI register address */
4046 SK_U16 Val)             /* pointer to store the read value */
4047 {
4048         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4049         return(0);
4050 } /* SkPciWriteCfgWord */
4051
4052
4053 /*****************************************************************************
4054  *
4055  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4056  *
4057  * Description:
4058  *      This routine writes a 8 bit value to the pci configuration
4059  *      space. The flag PciConfigUp indicates whether the config space
4060  *      is accesible or must be set up first.
4061  *
4062  * Returns:
4063  *      0 - indicate everything worked ok.
4064  *      != 0 - error indication
4065  */
4066 int SkPciWriteCfgByte(
4067 SK_AC *pAC,     /* Adapter Control structure pointer */
4068 int PciAddr,            /* PCI register address */
4069 SK_U8 Val)              /* pointer to store the read value */
4070 {
4071         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4072         return(0);
4073 } /* SkPciWriteCfgByte */
4074
4075
4076 /*****************************************************************************
4077  *
4078  *      SkDrvEvent - handle driver events
4079  *
4080  * Description:
4081  *      This function handles events from all modules directed to the driver
4082  *
4083  * Context:
4084  *      Is called under protection of slow path lock.
4085  *
4086  * Returns:
4087  *      0 if everything ok
4088  *      < 0  on error
4089  *
4090  */
4091 int SkDrvEvent(
4092 SK_AC *pAC,             /* pointer to adapter context */
4093 SK_IOC IoC,             /* io-context */
4094 SK_U32 Event,           /* event-id */
4095 SK_EVPARA Param)        /* event-parameter */
4096 {
4097 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4098 struct sk_buff  *pMsg;          /* pointer to a message block */
4099 int             FromPort;       /* the port from which we switch away */
4100 int             ToPort;         /* the port we switch to */
4101 SK_EVPARA       NewPara;        /* parameter for further events */
4102 int             Stat;
4103 unsigned long   Flags;
4104 SK_BOOL         DualNet;
4105
4106         switch (Event) {
4107         case SK_DRV_ADAP_FAIL:
4108                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4109                         ("ADAPTER FAIL EVENT\n"));
4110                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4111                 /* disable interrupts */
4112                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4113                 /* cgoos */
4114                 break;
4115         case SK_DRV_PORT_FAIL:
4116                 FromPort = Param.Para32[0];
4117                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4118                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4119                 if (FromPort == 0) {
4120                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4121                 } else {
4122                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4123                 }
4124                 /* cgoos */
4125                 break;
4126         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4127                 /* action list 4 */
4128                 FromPort = Param.Para32[0];
4129                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4130                         ("PORT RESET EVENT, Port: %d ", FromPort));
4131                 NewPara.Para64 = FromPort;
4132                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4133                 spin_lock_irqsave(
4134                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4135                         Flags);
4136
4137                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4138                 netif_carrier_off(pAC->dev[Param.Para32[0]]);
4139                 spin_unlock_irqrestore(
4140                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4141                         Flags);
4142
4143                 /* clear rx ring from received frames */
4144                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4145
4146                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4147                 spin_lock_irqsave(
4148                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4149                         Flags);
4150
4151                 /* tschilling: Handling of return value inserted. */
4152                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4153                         if (FromPort == 0) {
4154                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4155                         } else {
4156                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4157                         }
4158                 }
4159                 SkAddrMcUpdate(pAC,IoC, FromPort);
4160                 PortReInitBmu(pAC, FromPort);
4161                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4162                 ClearAndStartRx(pAC, FromPort);
4163                 spin_unlock_irqrestore(
4164                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4165                         Flags);
4166                 break;
4167         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4168         {       struct net_device *dev = pAC->dev[Param.Para32[0]];
4169                 /* action list 5 */
4170                 FromPort = Param.Para32[0];
4171                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4172                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4173                 /* Mac update */
4174                 SkAddrMcUpdate(pAC,IoC, FromPort);
4175
4176                 if (DoPrintInterfaceChange) {
4177                 printk("%s: network connection up using"
4178                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4179
4180                 /* tschilling: Values changed according to LinkSpeedUsed. */
4181                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4182                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4183                         printk("    speed:           10\n");
4184                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4185                         printk("    speed:           100\n");
4186                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4187                         printk("    speed:           1000\n");
4188                 } else {
4189                         printk("    speed:           unknown\n");
4190                 }
4191
4192
4193                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4194                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4195                         Stat == SK_LMODE_STAT_AUTOFULL) {
4196                         printk("    autonegotiation: yes\n");
4197                 }
4198                 else {
4199                         printk("    autonegotiation: no\n");
4200                 }
4201                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4202                         Stat == SK_LMODE_STAT_HALF) {
4203                         printk("    duplex mode:     half\n");
4204                 }
4205                 else {
4206                         printk("    duplex mode:     full\n");
4207                 }
4208                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4209                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4210                         printk("    flowctrl:        remote send\n");
4211                 }
4212                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4213                         printk("    flowctrl:        local send\n");
4214                 }
4215                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4216                         printk("    flowctrl:        symmetric\n");
4217                 }
4218                 else {
4219                         printk("    flowctrl:        none\n");
4220                 }
4221
4222                 /* tschilling: Check against CopperType now. */
4223                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4224                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4225                         SK_LSPEED_STAT_1000MBPS)) {
4226                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4227                         if (Stat == SK_MS_STAT_MASTER ) {
4228                                 printk("    role:            master\n");
4229                         }
4230                         else if (Stat == SK_MS_STAT_SLAVE ) {
4231                                 printk("    role:            slave\n");
4232                         }
4233                         else {
4234                                 printk("    role:            ???\n");
4235                         }
4236                 }
4237
4238                 /*
4239                    Display dim (dynamic interrupt moderation)
4240                    informations
4241                  */
4242                 if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC)
4243                         printk("    irq moderation:  static (%d ints/sec)\n",
4244                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4245                 else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC)
4246                         printk("    irq moderation:  dynamic (%d ints/sec)\n",
4247                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4248                 else
4249                         printk("    irq moderation:  disabled\n");
4250
4251
4252                 printk("    scatter-gather:  %s\n",
4253                        (dev->features & NETIF_F_SG) ? "enabled" : "disabled");
4254                 printk("    tx-checksum:     %s\n",
4255                        (dev->features & NETIF_F_IP_CSUM) ? "enabled" : "disabled");
4256                 printk("    rx-checksum:     %s\n",
4257                        pAC->RxPort[Param.Para32[0]].RxCsum ? "enabled" : "disabled");
4258
4259                 } else {
4260                         DoPrintInterfaceChange = SK_TRUE;
4261                 }
4262
4263                 if ((Param.Para32[0] != pAC->ActivePort) &&
4264                         (pAC->RlmtNets == 1)) {
4265                         NewPara.Para32[0] = pAC->ActivePort;
4266                         NewPara.Para32[1] = Param.Para32[0];
4267                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4268                                 NewPara);
4269                 }
4270
4271                 /* Inform the world that link protocol is up. */
4272                 netif_carrier_on(dev);
4273                 break;
4274         }
4275         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4276                 /* action list 7 */
4277                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4278                         ("NET DOWN EVENT "));
4279                 if (DoPrintInterfaceChange) {
4280                         printk("%s: network connection down\n",
4281                                 pAC->dev[Param.Para32[1]]->name);
4282                 } else {
4283                         DoPrintInterfaceChange = SK_TRUE;
4284                 }
4285                 netif_carrier_off(pAC->dev[Param.Para32[1]]);
4286                 break;
4287         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4288                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4289                         ("PORT SWITCH HARD "));
4290         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4291         /* action list 6 */
4292                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4293                         'A'+Param.Para32[1]);
4294         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4295                 FromPort = Param.Para32[0];
4296                 ToPort = Param.Para32[1];
4297                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4298                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4299                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4300                 NewPara.Para64 = FromPort;
4301                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4302                 NewPara.Para64 = ToPort;
4303                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4304                 spin_lock_irqsave(
4305                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4306                         Flags);
4307                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4308                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4309                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4310                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4311                 spin_unlock_irqrestore(
4312                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4313                         Flags);
4314
4315                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4316                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4317
4318                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4319                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4320                 spin_lock_irqsave(
4321                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4322                         Flags);
4323                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4324                 pAC->ActivePort = ToPort;
4325 #if 0
4326                 SetQueueSizes(pAC);
4327 #else
4328                 /* tschilling: New common function with minimum size check. */
4329                 DualNet = SK_FALSE;
4330                 if (pAC->RlmtNets == 2) {
4331                         DualNet = SK_TRUE;
4332                 }
4333
4334                 if (SkGeInitAssignRamToQueues(
4335                         pAC,
4336                         pAC->ActivePort,
4337                         DualNet)) {
4338                         spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4339                         spin_unlock_irqrestore(
4340                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4341                                 Flags);
4342                         printk("SkGeInitAssignRamToQueues failed.\n");
4343                         break;
4344                 }
4345 #endif
4346                 /* tschilling: Handling of return values inserted. */
4347                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4348                         SkGeInitPort(pAC, IoC, ToPort)) {
4349                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4350                 }
4351                 if (Event == SK_DRV_SWITCH_SOFT) {
4352                         SkMacRxTxEnable(pAC, IoC, FromPort);
4353                 }
4354                 SkMacRxTxEnable(pAC, IoC, ToPort);
4355                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4356                 SkAddrMcUpdate(pAC, IoC, FromPort);
4357                 SkAddrMcUpdate(pAC, IoC, ToPort);
4358                 PortReInitBmu(pAC, FromPort);
4359                 PortReInitBmu(pAC, ToPort);
4360                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4361                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4362                 ClearAndStartRx(pAC, FromPort);
4363                 ClearAndStartRx(pAC, ToPort);
4364                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4365                 spin_unlock_irqrestore(
4366                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4367                         Flags);
4368                 break;
4369         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4370                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4371                         ("RLS "));
4372                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4373                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4374                 skb_put(pMsg, pRlmtMbuf->Length);
4375                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4376                         pMsg) < 0)
4377
4378                         DEV_KFREE_SKB_ANY(pMsg);
4379                 break;
4380         case SK_DRV_TIMER:
4381                 if (Param.Para32[0] == SK_DRV_MODERATION_TIMER) {
4382                         /*
4383                         ** expiration of the moderation timer implies that
4384                         ** dynamic moderation is to be applied
4385                         */
4386                         SkDimStartModerationTimer(pAC);
4387                         SkDimModerate(pAC);
4388                         if (pAC->DynIrqModInfo.DisplayStats) {
4389                             SkDimDisplayModerationSettings(pAC);
4390                         }
4391                 } else if (Param.Para32[0] == SK_DRV_RX_CLEANUP_TIMER) {
4392                         /*
4393                         ** check if we need to check for descriptors which
4394                         ** haven't been handled the last millisecs
4395                         */
4396                         StartDrvCleanupTimer(pAC);
4397                         if (pAC->GIni.GIMacsFound == 2) {
4398                                 ReceiveIrq(pAC, &pAC->RxPort[1], SK_FALSE);
4399                         }
4400                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_FALSE);
4401                 } else {
4402                         printk("Expiration of unknown timer\n");
4403                 }
4404                 break;
4405         default:
4406                 break;
4407         }
4408         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4409                 ("END EVENT "));
4410
4411         return (0);
4412 } /* SkDrvEvent */
4413
4414
4415 /*****************************************************************************
4416  *
4417  *      SkErrorLog - log errors
4418  *
4419  * Description:
4420  *      This function logs errors to the system buffer and to the console
4421  *
4422  * Returns:
4423  *      0 if everything ok
4424  *      < 0  on error
4425  *
4426  */
4427 void SkErrorLog(
4428 SK_AC   *pAC,
4429 int     ErrClass,
4430 int     ErrNum,
4431 char    *pErrorMsg)
4432 {
4433 char    ClassStr[80];
4434
4435         switch (ErrClass) {
4436         case SK_ERRCL_OTHER:
4437                 strcpy(ClassStr, "Other error");
4438                 break;
4439         case SK_ERRCL_CONFIG:
4440                 strcpy(ClassStr, "Configuration error");
4441                 break;
4442         case SK_ERRCL_INIT:
4443                 strcpy(ClassStr, "Initialization error");
4444                 break;
4445         case SK_ERRCL_NORES:
4446                 strcpy(ClassStr, "Out of resources error");
4447                 break;
4448         case SK_ERRCL_SW:
4449                 strcpy(ClassStr, "internal Software error");
4450                 break;
4451         case SK_ERRCL_HW:
4452                 strcpy(ClassStr, "Hardware failure");
4453                 break;
4454         case SK_ERRCL_COMM:
4455                 strcpy(ClassStr, "Communication error");
4456                 break;
4457         }
4458         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4459                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4460                 ClassStr, ErrNum, pErrorMsg);
4461
4462 } /* SkErrorLog */
4463
4464 #ifdef SK_DIAG_SUPPORT
4465
4466 /*****************************************************************************
4467  *
4468  *      SkDrvEnterDiagMode - handles DIAG attach request
4469  *
4470  * Description:
4471  *      Notify the kernel to NOT access the card any longer due to DIAG
4472  *      Deinitialize the Card
4473  *
4474  * Returns:
4475  *      int
4476  */
4477 int SkDrvEnterDiagMode(
4478 SK_AC   *pAc)   /* pointer to adapter context */
4479 {
4480         DEV_NET *pNet = netdev_priv(pAc->dev[0]);
4481         SK_AC   *pAC  = pNet->pAC;
4482
4483         SK_MEMCPY(&(pAc->PnmiBackup), &(pAc->PnmiStruct),
4484                         sizeof(SK_PNMI_STRUCT_DATA));
4485
4486         pAC->DiagModeActive = DIAG_ACTIVE;
4487         if (pAC->BoardLevel > SK_INIT_DATA) {
4488                 if (netif_running(pAC->dev[0])) {
4489                         pAC->WasIfUp[0] = SK_TRUE;
4490                         pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose      */
4491                         DoPrintInterfaceChange = SK_FALSE;
4492                         SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
4493                 } else {
4494                         pAC->WasIfUp[0] = SK_FALSE;
4495                 }
4496                 if (pNet != netdev_priv(pAC->dev[1])) {
4497                         pNet = netdev_priv(pAC->dev[1]);
4498                         if (netif_running(pAC->dev[1])) {
4499                                 pAC->WasIfUp[1] = SK_TRUE;
4500                                 pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4501                                 DoPrintInterfaceChange = SK_FALSE;
4502                                 SkDrvDeInitAdapter(pAC, 1);  /* do SkGeClose  */
4503                         } else {
4504                                 pAC->WasIfUp[1] = SK_FALSE;
4505                         }
4506                 }
4507                 pAC->BoardLevel = SK_INIT_DATA;
4508         }
4509         return(0);
4510 }
4511
4512 /*****************************************************************************
4513  *
4514  *      SkDrvLeaveDiagMode - handles DIAG detach request
4515  *
4516  * Description:
4517  *      Notify the kernel to may access the card again after use by DIAG
4518  *      Initialize the Card
4519  *
4520  * Returns:
4521  *      int
4522  */
4523 int SkDrvLeaveDiagMode(
4524 SK_AC   *pAc)   /* pointer to adapter control context */
4525 {
4526         SK_MEMCPY(&(pAc->PnmiStruct), &(pAc->PnmiBackup),
4527                         sizeof(SK_PNMI_STRUCT_DATA));
4528         pAc->DiagModeActive    = DIAG_NOTACTIVE;
4529         pAc->Pnmi.DiagAttached = SK_DIAG_IDLE;
4530         if (pAc->WasIfUp[0] == SK_TRUE) {
4531                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4532                 DoPrintInterfaceChange = SK_FALSE;
4533                 SkDrvInitAdapter(pAc, 0);    /* first device  */
4534         }
4535         if (pAc->WasIfUp[1] == SK_TRUE) {
4536                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4537                 DoPrintInterfaceChange = SK_FALSE;
4538                 SkDrvInitAdapter(pAc, 1);    /* second device */
4539         }
4540         return(0);
4541 }
4542
4543 /*****************************************************************************
4544  *
4545  *      ParseDeviceNbrFromSlotName - Evaluate PCI device number
4546  *
4547  * Description:
4548  *      This function parses the PCI slot name information string and will
4549  *      retrieve the devcie number out of it. The slot_name maintianed by
4550  *      linux is in the form of '02:0a.0', whereas the first two characters
4551  *      represent the bus number in hex (in the sample above this is
4552  *      pci bus 0x02) and the next two characters the device number (0x0a).
4553  *
4554  * Returns:
4555  *      SK_U32: The device number from the PCI slot name
4556  */
4557
4558 static SK_U32 ParseDeviceNbrFromSlotName(
4559 const char *SlotName)   /* pointer to pci slot name eg. '02:0a.0' */
4560 {
4561         char    *CurrCharPos    = (char *) SlotName;
4562         int     FirstNibble     = -1;
4563         int     SecondNibble    = -1;
4564         SK_U32  Result          =  0;
4565
4566         while (*CurrCharPos != '\0') {
4567                 if (*CurrCharPos == ':') {
4568                         while (*CurrCharPos != '.') {
4569                                 CurrCharPos++;
4570                                 if (    (*CurrCharPos >= '0') &&
4571                                         (*CurrCharPos <= '9')) {
4572                                         if (FirstNibble == -1) {
4573                                                 /* dec. value for '0' */
4574                                                 FirstNibble = *CurrCharPos - 48;
4575                                         } else {
4576                                                 SecondNibble = *CurrCharPos - 48;
4577                                         }
4578                                 } else if (     (*CurrCharPos >= 'a') &&
4579                                                 (*CurrCharPos <= 'f')  ) {
4580                                         if (FirstNibble == -1) {
4581                                                 FirstNibble = *CurrCharPos - 87;
4582                                         } else {
4583                                                 SecondNibble = *CurrCharPos - 87;
4584                                         }
4585                                 } else {
4586                                         Result = 0;
4587                                 }
4588                         }
4589
4590                         Result = FirstNibble;
4591                         Result = Result << 4; /* first nibble is higher one */
4592                         Result = Result | SecondNibble;
4593                 }
4594                 CurrCharPos++;   /* next character */
4595         }
4596         return (Result);
4597 }
4598
4599 /****************************************************************************
4600  *
4601  *      SkDrvDeInitAdapter - deinitialize adapter (this function is only
4602  *                              called if Diag attaches to that card)
4603  *
4604  * Description:
4605  *      Close initialized adapter.
4606  *
4607  * Returns:
4608  *      0 - on success
4609  *      error code - on error
4610  */
4611 static int SkDrvDeInitAdapter(
4612 SK_AC   *pAC,           /* pointer to adapter context   */
4613 int      devNbr)        /* what device is to be handled */
4614 {
4615         struct SK_NET_DEVICE *dev;
4616
4617         dev = pAC->dev[devNbr];
4618
4619         /* On Linux 2.6 the network driver does NOT mess with reference
4620         ** counts.  The driver MUST be able to be unloaded at any time
4621         ** due to the possibility of hotplug.
4622         */
4623         if (SkGeClose(dev) != 0) {
4624                 return (-1);
4625         }
4626         return (0);
4627
4628 } /* SkDrvDeInitAdapter() */
4629
4630 /****************************************************************************
4631  *
4632  *      SkDrvInitAdapter - Initialize adapter (this function is only
4633  *                              called if Diag deattaches from that card)
4634  *
4635  * Description:
4636  *      Close initialized adapter.
4637  *
4638  * Returns:
4639  *      0 - on success
4640  *      error code - on error
4641  */
4642 static int SkDrvInitAdapter(
4643 SK_AC   *pAC,           /* pointer to adapter context   */
4644 int      devNbr)        /* what device is to be handled */
4645 {
4646         struct SK_NET_DEVICE *dev;
4647
4648         dev = pAC->dev[devNbr];
4649
4650         if (SkGeOpen(dev) != 0) {
4651                 return (-1);
4652         }
4653
4654         /*
4655         ** Use correct MTU size and indicate to kernel TX queue can be started
4656         */
4657         if (SkGeChangeMtu(dev, dev->mtu) != 0) {
4658                 return (-1);
4659         }
4660         return (0);
4661
4662 } /* SkDrvInitAdapter */
4663
4664 #endif
4665
4666 #ifdef DEBUG
4667 /****************************************************************************/
4668 /* "debug only" section *****************************************************/
4669 /****************************************************************************/
4670
4671
4672 /*****************************************************************************
4673  *
4674  *      DumpMsg - print a frame
4675  *
4676  * Description:
4677  *      This function prints frames to the system logfile/to the console.
4678  *
4679  * Returns: N/A
4680  *
4681  */
4682 static void DumpMsg(struct sk_buff *skb, char *str)
4683 {
4684         int     msglen;
4685
4686         if (skb == NULL) {
4687                 printk("DumpMsg(): NULL-Message\n");
4688                 return;
4689         }
4690
4691         if (skb->data == NULL) {
4692                 printk("DumpMsg(): Message empty\n");
4693                 return;
4694         }
4695
4696         msglen = skb->len;
4697         if (msglen > 64)
4698                 msglen = 64;
4699
4700         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4701
4702         DumpData((char *)skb->data, msglen);
4703
4704         printk("------- End of message ---------\n");
4705 } /* DumpMsg */
4706
4707
4708
4709 /*****************************************************************************
4710  *
4711  *      DumpData - print a data area
4712  *
4713  * Description:
4714  *      This function prints a area of data to the system logfile/to the
4715  *      console.
4716  *
4717  * Returns: N/A
4718  *
4719  */
4720 static void DumpData(char *p, int size)
4721 {
4722 register int    i;
4723 int     haddr, addr;
4724 char    hex_buffer[180];
4725 char    asc_buffer[180];
4726 char    HEXCHAR[] = "0123456789ABCDEF";
4727
4728         addr = 0;
4729         haddr = 0;
4730         hex_buffer[0] = 0;
4731         asc_buffer[0] = 0;
4732         for (i=0; i < size; ) {
4733                 if (*p >= '0' && *p <='z')
4734                         asc_buffer[addr] = *p;
4735                 else
4736                         asc_buffer[addr] = '.';
4737                 addr++;
4738                 asc_buffer[addr] = 0;
4739                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4740                 haddr++;
4741                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4742                 haddr++;
4743                 hex_buffer[haddr] = ' ';
4744                 haddr++;
4745                 hex_buffer[haddr] = 0;
4746                 p++;
4747                 i++;
4748                 if (i%16 == 0) {
4749                         printk("%s  %s\n", hex_buffer, asc_buffer);
4750                         addr = 0;
4751                         haddr = 0;
4752                 }
4753         }
4754 } /* DumpData */
4755
4756
4757 /*****************************************************************************
4758  *
4759  *      DumpLong - print a data area as long values
4760  *
4761  * Description:
4762  *      This function prints a area of data to the system logfile/to the
4763  *      console.
4764  *
4765  * Returns: N/A
4766  *
4767  */
4768 static void DumpLong(char *pc, int size)
4769 {
4770 register int    i;
4771 int     haddr, addr;
4772 char    hex_buffer[180];
4773 char    asc_buffer[180];
4774 char    HEXCHAR[] = "0123456789ABCDEF";
4775 long    *p;
4776 int     l;
4777
4778         addr = 0;
4779         haddr = 0;
4780         hex_buffer[0] = 0;
4781         asc_buffer[0] = 0;
4782         p = (long*) pc;
4783         for (i=0; i < size; ) {
4784                 l = (long) *p;
4785                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4786                 haddr++;
4787                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4788                 haddr++;
4789                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4790                 haddr++;
4791                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4792                 haddr++;
4793                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4794                 haddr++;
4795                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4796                 haddr++;
4797                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4798                 haddr++;
4799                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4800                 haddr++;
4801                 hex_buffer[haddr] = ' ';
4802                 haddr++;
4803                 hex_buffer[haddr] = 0;
4804                 p++;
4805                 i++;
4806                 if (i%8 == 0) {
4807                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4808                         haddr = 0;
4809                 }
4810         }
4811         printk("------------------------\n");
4812 } /* DumpLong */
4813
4814 #endif
4815
4816 static int __devinit skge_probe_one(struct pci_dev *pdev,
4817                 const struct pci_device_id *ent)
4818 {
4819         SK_AC                   *pAC;
4820         DEV_NET                 *pNet = NULL;
4821         struct net_device       *dev = NULL;
4822         static int boards_found = 0;
4823         int error = -ENODEV;
4824         int using_dac = 0;
4825         char DeviceStr[80];
4826
4827         if (pci_enable_device(pdev))
4828                 goto out;
4829
4830         /* Configure DMA attributes. */
4831         if (sizeof(dma_addr_t) > sizeof(u32) &&
4832             !(error = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
4833                 using_dac = 1;
4834                 error = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
4835                 if (error < 0) {
4836                         printk(KERN_ERR "sk98lin %s unable to obtain 64 bit DMA "
4837                                "for consistent allocations\n", pci_name(pdev));
4838                         goto out_disable_device;
4839                 }
4840         } else {
4841                 error = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
4842                 if (error) {
4843                         printk(KERN_ERR "sk98lin %s no usable DMA configuration\n",
4844                                pci_name(pdev));
4845                         goto out_disable_device;
4846                 }
4847         }
4848
4849         error = -ENOMEM;
4850         dev = alloc_etherdev(sizeof(DEV_NET));
4851         if (!dev) {
4852                 printk(KERN_ERR "sk98lin: unable to allocate etherdev "
4853                        "structure!\n");
4854                 goto out_disable_device;
4855         }
4856
4857         pNet = netdev_priv(dev);
4858         pNet->pAC = kzalloc(sizeof(SK_AC), GFP_KERNEL);
4859         if (!pNet->pAC) {
4860                 printk(KERN_ERR "sk98lin: unable to allocate adapter "
4861                        "structure!\n");
4862                 goto out_free_netdev;
4863         }
4864
4865         pAC = pNet->pAC;
4866         pAC->PciDev = pdev;
4867
4868         pAC->dev[0] = dev;
4869         pAC->dev[1] = dev;
4870         pAC->CheckQueue = SK_FALSE;
4871
4872         dev->irq = pdev->irq;
4873
4874         error = SkGeInitPCI(pAC);
4875         if (error) {
4876                 printk(KERN_ERR "sk98lin: PCI setup failed: %i\n", error);
4877                 goto out_free_netdev;
4878         }
4879
4880         dev->open =             &SkGeOpen;
4881         dev->stop =             &SkGeClose;
4882         dev->hard_start_xmit =  &SkGeXmit;
4883         dev->get_stats =        &SkGeStats;
4884         dev->set_multicast_list = &SkGeSetRxMode;
4885         dev->set_mac_address =  &SkGeSetMacAddr;
4886         dev->do_ioctl =         &SkGeIoctl;
4887         dev->change_mtu =       &SkGeChangeMtu;
4888 #ifdef CONFIG_NET_POLL_CONTROLLER
4889         dev->poll_controller =  &SkGePollController;
4890 #endif
4891         SET_NETDEV_DEV(dev, &pdev->dev);
4892         SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4893
4894         /* Use only if yukon hardware */
4895         if (pAC->ChipsetType) {
4896 #ifdef USE_SK_TX_CHECKSUM
4897                 dev->features |= NETIF_F_IP_CSUM;
4898 #endif
4899 #ifdef SK_ZEROCOPY
4900                 dev->features |= NETIF_F_SG;
4901 #endif
4902 #ifdef USE_SK_RX_CHECKSUM
4903                 pAC->RxPort[0].RxCsum = 1;
4904 #endif
4905         }
4906
4907         if (using_dac)
4908                 dev->features |= NETIF_F_HIGHDMA;
4909
4910         pAC->Index = boards_found++;
4911
4912         error = SkGeBoardInit(dev, pAC);
4913         if (error)
4914                 goto out_free_netdev;
4915
4916         /* Read Adapter name from VPD */
4917         if (ProductStr(pAC, DeviceStr, sizeof(DeviceStr)) != 0) {
4918                 error = -EIO;
4919                 printk(KERN_ERR "sk98lin: Could not read VPD data.\n");
4920                 goto out_free_resources;
4921         }
4922
4923         /* Register net device */
4924         error = register_netdev(dev);
4925         if (error) {
4926                 printk(KERN_ERR "sk98lin: Could not register device.\n");
4927                 goto out_free_resources;
4928         }
4929
4930         /* Print adapter specific string from vpd */
4931         printk("%s: %s\n", dev->name, DeviceStr);
4932
4933         /* Print configuration settings */
4934         printk("      PrefPort:%c  RlmtMode:%s\n",
4935                 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
4936                 (pAC->RlmtMode==0)  ? "Check Link State" :
4937                 ((pAC->RlmtMode==1) ? "Check Link State" :
4938                 ((pAC->RlmtMode==3) ? "Check Local Port" :
4939                 ((pAC->RlmtMode==7) ? "Check Segmentation" :
4940                 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
4941
4942         SkGeYellowLED(pAC, pAC->IoBase, 1);
4943
4944         memcpy(&dev->dev_addr, &pAC->Addr.Net[0].CurrentMacAddress, 6);
4945         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4946
4947         pNet->PortNr = 0;
4948         pNet->NetNr  = 0;
4949
4950         boards_found++;
4951
4952         pci_set_drvdata(pdev, dev);
4953
4954         /* More then one port found */
4955         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
4956                 dev = alloc_etherdev(sizeof(DEV_NET));
4957                 if (!dev) {
4958                         printk(KERN_ERR "sk98lin: unable to allocate etherdev "
4959                                 "structure!\n");
4960                         goto single_port;
4961                 }
4962
4963                 pNet          = netdev_priv(dev);
4964                 pNet->PortNr  = 1;
4965                 pNet->NetNr   = 1;
4966                 pNet->pAC     = pAC;
4967
4968                 dev->open               = &SkGeOpen;
4969                 dev->stop               = &SkGeClose;
4970                 dev->hard_start_xmit    = &SkGeXmit;
4971                 dev->get_stats          = &SkGeStats;
4972                 dev->set_multicast_list = &SkGeSetRxMode;
4973                 dev->set_mac_address    = &SkGeSetMacAddr;
4974                 dev->do_ioctl           = &SkGeIoctl;
4975                 dev->change_mtu         = &SkGeChangeMtu;
4976                 SET_NETDEV_DEV(dev, &pdev->dev);
4977                 SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4978
4979                 if (pAC->ChipsetType) {
4980 #ifdef USE_SK_TX_CHECKSUM
4981                         dev->features |= NETIF_F_IP_CSUM;
4982 #endif
4983 #ifdef SK_ZEROCOPY
4984                         dev->features |= NETIF_F_SG;
4985 #endif
4986 #ifdef USE_SK_RX_CHECKSUM
4987                         pAC->RxPort[1].RxCsum = 1;
4988 #endif
4989                 }
4990
4991                 if (using_dac)
4992                         dev->features |= NETIF_F_HIGHDMA;
4993
4994                 error = register_netdev(dev);
4995                 if (error) {
4996                         printk(KERN_ERR "sk98lin: Could not register device"
4997                                " for second port. (%d)\n", error);
4998                         free_netdev(dev);
4999                         goto single_port;
5000                 }
5001
5002                 pAC->dev[1]   = dev;
5003                 memcpy(&dev->dev_addr,
5004                        &pAC->Addr.Net[1].CurrentMacAddress, 6);
5005                 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
5006
5007                 printk("%s: %s\n", dev->name, DeviceStr);
5008                 printk("      PrefPort:B  RlmtMode:Dual Check Link State\n");
5009         }
5010
5011 single_port:
5012
5013         /* Save the hardware revision */
5014         pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
5015                 (pAC->GIni.GIPciHwRev & 0x0F);
5016
5017         /* Set driver globals */
5018         pAC->Pnmi.pDriverFileName    = DRIVER_FILE_NAME;
5019         pAC->Pnmi.pDriverReleaseDate = DRIVER_REL_DATE;
5020
5021         memset(&pAC->PnmiBackup, 0, sizeof(SK_PNMI_STRUCT_DATA));
5022         memcpy(&pAC->PnmiBackup, &pAC->PnmiStruct, sizeof(SK_PNMI_STRUCT_DATA));
5023
5024         return 0;
5025
5026  out_free_resources:
5027         FreeResources(dev);
5028  out_free_netdev:
5029         free_netdev(dev);
5030  out_disable_device:
5031         pci_disable_device(pdev);
5032  out:
5033         return error;
5034 }
5035
5036 static void __devexit skge_remove_one(struct pci_dev *pdev)
5037 {
5038         struct net_device *dev = pci_get_drvdata(pdev);
5039         DEV_NET *pNet = netdev_priv(dev);
5040         SK_AC *pAC = pNet->pAC;
5041         struct net_device *otherdev = pAC->dev[1];
5042
5043         unregister_netdev(dev);
5044
5045         SkGeYellowLED(pAC, pAC->IoBase, 0);
5046
5047         if (pAC->BoardLevel == SK_INIT_RUN) {
5048                 SK_EVPARA EvPara;
5049                 unsigned long Flags;
5050
5051                 /* board is still alive */
5052                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
5053                 EvPara.Para32[0] = 0;
5054                 EvPara.Para32[1] = -1;
5055                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
5056                 EvPara.Para32[0] = 1;
5057                 EvPara.Para32[1] = -1;
5058                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
5059                 SkEventDispatcher(pAC, pAC->IoBase);
5060                 /* disable interrupts */
5061                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
5062                 SkGeDeInit(pAC, pAC->IoBase);
5063                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
5064                 pAC->BoardLevel = SK_INIT_DATA;
5065                 /* We do NOT check here, if IRQ was pending, of course*/
5066         }
5067
5068         if (pAC->BoardLevel == SK_INIT_IO) {
5069                 /* board is still alive */
5070                 SkGeDeInit(pAC, pAC->IoBase);
5071                 pAC->BoardLevel = SK_INIT_DATA;
5072         }
5073
5074         FreeResources(dev);
5075         free_netdev(dev);
5076         if (otherdev != dev)
5077                 free_netdev(otherdev);
5078         kfree(pAC);
5079 }
5080
5081 #ifdef CONFIG_PM
5082 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
5083 {
5084         struct net_device *dev = pci_get_drvdata(pdev);
5085         DEV_NET *pNet = netdev_priv(dev);
5086         SK_AC *pAC = pNet->pAC;
5087         struct net_device *otherdev = pAC->dev[1];
5088
5089         if (netif_running(dev)) {
5090                 netif_carrier_off(dev);
5091                 DoPrintInterfaceChange = SK_FALSE;
5092                 SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
5093                 netif_device_detach(dev);
5094         }
5095         if (otherdev != dev) {
5096                 if (netif_running(otherdev)) {
5097                         netif_carrier_off(otherdev);
5098                         DoPrintInterfaceChange = SK_FALSE;
5099                         SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
5100                         netif_device_detach(otherdev);
5101                 }
5102         }
5103
5104         pci_save_state(pdev);
5105         pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
5106         if (pAC->AllocFlag & SK_ALLOC_IRQ) {
5107                 free_irq(dev->irq, dev);
5108         }
5109         pci_disable_device(pdev);
5110         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5111
5112         return 0;
5113 }
5114
5115 static int skge_resume(struct pci_dev *pdev)
5116 {
5117         struct net_device *dev = pci_get_drvdata(pdev);
5118         DEV_NET *pNet = netdev_priv(dev);
5119         SK_AC *pAC = pNet->pAC;
5120         struct net_device *otherdev = pAC->dev[1];
5121         int ret;
5122
5123         pci_set_power_state(pdev, PCI_D0);
5124         pci_restore_state(pdev);
5125         ret = pci_enable_device(pdev);
5126         if (ret) {
5127                 printk(KERN_WARNING "sk98lin: unable to enable device %s "
5128                                 "in resume\n", dev->name);
5129                 goto err_out;
5130         }
5131         pci_set_master(pdev);
5132         if (pAC->GIni.GIMacsFound == 2)
5133                 ret = request_irq(dev->irq, SkGeIsr, IRQF_SHARED, "sk98lin", dev);
5134         else
5135                 ret = request_irq(dev->irq, SkGeIsrOnePort, IRQF_SHARED, "sk98lin", dev);
5136         if (ret) {
5137                 printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
5138                 ret = -EBUSY;
5139                 goto err_out_disable_pdev;
5140         }
5141
5142         netif_device_attach(dev);
5143         if (netif_running(dev)) {
5144                 DoPrintInterfaceChange = SK_FALSE;
5145                 SkDrvInitAdapter(pAC, 0);    /* first device  */
5146         }
5147         if (otherdev != dev) {
5148                 netif_device_attach(otherdev);
5149                 if (netif_running(otherdev)) {
5150                         DoPrintInterfaceChange = SK_FALSE;
5151                         SkDrvInitAdapter(pAC, 1);    /* second device  */
5152                 }
5153         }
5154
5155         return 0;
5156
5157 err_out_disable_pdev:
5158         pci_disable_device(pdev);
5159 err_out:
5160         pAC->AllocFlag &= ~SK_ALLOC_IRQ;
5161         dev->irq = 0;
5162         return ret;
5163 }
5164 #else
5165 #define skge_suspend NULL
5166 #define skge_resume NULL
5167 #endif
5168
5169 static struct pci_device_id skge_pci_tbl[] = {
5170 #ifdef SK98LIN_ALL_DEVICES
5171         { PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5172         { PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5173 #endif
5174 #ifdef GENESIS
5175         /* Generic SysKonnect SK-98xx Gigabit Ethernet Server Adapter */
5176         { PCI_VENDOR_ID_SYSKONNECT, 0x4300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5177 #endif
5178         /* Generic SysKonnect SK-98xx V2.0 Gigabit Ethernet Adapter */
5179         { PCI_VENDOR_ID_SYSKONNECT, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5180 #ifdef SK98LIN_ALL_DEVICES
5181 /* DLink card does not have valid VPD so this driver gags
5182  *      { PCI_VENDOR_ID_DLINK, 0x4c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5183  */
5184         { PCI_VENDOR_ID_MARVELL, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5185         { PCI_VENDOR_ID_MARVELL, 0x5005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5186         { PCI_VENDOR_ID_CNET, 0x434e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5187         { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
5188         { PCI_VENDOR_ID_LINKSYS, 0x1064, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5189 #endif
5190         { 0 }
5191 };
5192
5193 MODULE_DEVICE_TABLE(pci, skge_pci_tbl);
5194
5195 static struct pci_driver skge_driver = {
5196         .name           = "sk98lin",
5197         .id_table       = skge_pci_tbl,
5198         .probe          = skge_probe_one,
5199         .remove         = __devexit_p(skge_remove_one),
5200         .suspend        = skge_suspend,
5201         .resume         = skge_resume,
5202 };
5203
5204 static int __init skge_init(void)
5205 {
5206         printk(KERN_NOTICE "sk98lin: driver has been replaced by the skge driver"
5207                " and is scheduled for removal\n");
5208
5209         return pci_register_driver(&skge_driver);
5210 }
5211
5212 static void __exit skge_exit(void)
5213 {
5214         pci_unregister_driver(&skge_driver);
5215 }
5216
5217 module_init(skge_init);
5218 module_exit(skge_exit);