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/proc_fs.h>
 115 #include        <linux/dma-mapping.h>
 116 #include        <linux/ip.h>
 117
 118 #include        "h/skdrv1st.h"
 119 #include        "h/skdrv2nd.h"
 120
 121 /*******************************************************************************
 122  *
 123  * Defines
 124  *
 125  ******************************************************************************/
 126
 127 /* for debuging on x86 only */
 128 /* #define BREAKPOINT() asm(" int $3"); */
 129
 130 /* use the transmit hw checksum driver functionality */
 131 #define USE_SK_TX_CHECKSUM
 132
 133 /* use the receive hw checksum driver functionality */
 134 #define USE_SK_RX_CHECKSUM
 135
 136 /* use the scatter-gather functionality with sendfile() */
 137 #define SK_ZEROCOPY
 138
 139 /* use of a transmit complete interrupt */
 140 #define USE_TX_COMPLETE
 141
 142 /*
 143  * threshold for copying small receive frames
 144  * set to 0 to avoid copying, set to 9001 to copy all frames
 145  */
 146 #define SK_COPY_THRESHOLD       50
 147
 148 /* number of adapters that can be configured via command line params */
 149 #define SK_MAX_CARD_PARAM       16
 150
 151
 152
 153 /*
 154  * use those defines for a compile-in version of the driver instead
 155  * of command line parameters
 156  */
 157 // #define LINK_SPEED_A {"Auto", }
 158 // #define LINK_SPEED_B {"Auto", }
 159 // #define AUTO_NEG_A   {"Sense", }
 160 // #define AUTO_NEG_B   {"Sense", }
 161 // #define DUP_CAP_A    {"Both", }
 162 // #define DUP_CAP_B    {"Both", }
 163 // #define FLOW_CTRL_A  {"SymOrRem", }
 164 // #define FLOW_CTRL_B  {"SymOrRem", }
 165 // #define ROLE_A       {"Auto", }
 166 // #define ROLE_B       {"Auto", }
 167 // #define PREF_PORT    {"A", }
 168 // #define CON_TYPE     {"Auto", }
 169 // #define RLMT_MODE    {"CheckLinkState", }
 170
 171 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
 172 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
 173 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
 174
 175
 176 /* Set blink mode*/
 177 #define OEM_CONFIG_VALUE (      SK_ACT_LED_BLINK | \
 178                                 SK_DUP_LED_NORMAL | \
 179                                 SK_LED_LINK100_ON)
 180
 181
 182 /* Isr return value */
 183 #define SkIsrRetVar     irqreturn_t
 184 #define SkIsrRetNone    IRQ_NONE
 185 #define SkIsrRetHandled IRQ_HANDLED
 186
 187
 188 /*******************************************************************************
 189  *
 190  * Local Function Prototypes
 191  *
 192  ******************************************************************************/
 193
 194 static void     FreeResources(struct SK_NET_DEVICE *dev);
 195 static int      SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
 196 static SK_BOOL  BoardAllocMem(SK_AC *pAC);
 197 static void     BoardFreeMem(SK_AC *pAC);
 198 static void     BoardInitMem(SK_AC *pAC);
 199 static void     SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, int*, SK_BOOL);
 200 static SkIsrRetVar      SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
 201 static SkIsrRetVar      SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
 202 static int      SkGeOpen(struct SK_NET_DEVICE *dev);
 203 static int      SkGeClose(struct SK_NET_DEVICE *dev);
 204 static int      SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 205 static int      SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
 206 static void     SkGeSetRxMode(struct SK_NET_DEVICE *dev);
 207 static struct   net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
 208 static int      SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
 209 static void     GetConfiguration(SK_AC*);
 210 static void     ProductStr(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 static const char       SKRootName[] = "net/sk98lin";
 240 static struct           proc_dir_entry *pSkRootDir;
 241 extern struct   file_operations sk_proc_fops;
 242
 243 static inline void SkGeProcCreate(struct net_device *dev)
 244 {
 245         struct proc_dir_entry *pe;
 246
 247         if (pSkRootDir &&
 248             (pe = create_proc_entry(dev->name, S_IRUGO, pSkRootDir))) {
 249                 pe->proc_fops = &sk_proc_fops;
 250                 pe->data = dev;
 251                 pe->owner = THIS_MODULE;
 252         }
 253 }
 254
 255 static inline void SkGeProcRemove(struct net_device *dev)
 256 {
 257         if (pSkRootDir)
 258                 remove_proc_entry(dev->name, pSkRootDir);
 259 }
 260
 261 extern void SkDimEnableModerationIfNeeded(SK_AC *pAC);
 262 extern void SkDimDisplayModerationSettings(SK_AC *pAC);
 263 extern void SkDimStartModerationTimer(SK_AC *pAC);
 264 extern void SkDimModerate(SK_AC *pAC);
 265 extern void SkGeBlinkTimer(unsigned long data);
 266
 267 #ifdef DEBUG
 268 static void     DumpMsg(struct sk_buff*, char*);
 269 static void     DumpData(char*, int);
 270 static void     DumpLong(char*, int);
 271 #endif
 272
 273 /* global variables *********************************************************/
 274 static SK_BOOL DoPrintInterfaceChange = SK_TRUE;
 275 extern  struct ethtool_ops SkGeEthtoolOps;
 276
 277 /* local variables **********************************************************/
 278 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
 279 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
 280
 281 /*****************************************************************************
 282  *
 283  *      SkGeInitPCI - Init the PCI resources
 284  *
 285  * Description:
 286  *      This function initialize the PCI resources and IO
 287  *
 288  * Returns: N/A
 289  *
 290  */
 291 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         if (pci_enable_device(pdev) != 0) {
 298                 return 1;
 299         }
 300
 301         dev->mem_start = pci_resource_start (pdev, 0);
 302         pci_set_master(pdev);
 303
 304         if (pci_request_regions(pdev, pAC->Name) != 0) {
 305                 retval = 2;
 306                 goto out_disable;
 307         }
 308
 309 #ifdef SK_BIG_ENDIAN
 310         /*
 311          * On big endian machines, we use the adapter's aibility of
 312          * reading the descriptors as big endian.
 313          */
 314         {
 315                 SK_U32          our2;
 316                 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
 317                 our2 |= PCI_REV_DESC;
 318                 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
 319         }
 320 #endif
 321
 322         /*
 323          * Remap the regs into kernel space.
 324          */
 325         pAC->IoBase = ioremap_nocache(dev->mem_start, 0x4000);
 326
 327         if (!pAC->IoBase){
 328                 retval = 3;
 329                 goto out_release;
 330         }
 331
 332         return 0;
 333
 334  out_release:
 335         pci_release_regions(pdev);
 336  out_disable:
 337         pci_disable_device(pdev);
 338         return retval;
 339 }
 340
 341
 342 /*****************************************************************************
 343  *
 344  *      FreeResources - release resources allocated for adapter
 345  *
 346  * Description:
 347  *      This function releases the IRQ, unmaps the IO and
 348  *      frees the desriptor ring.
 349  *
 350  * Returns: N/A
 351  *
 352  */
 353 static void FreeResources(struct SK_NET_DEVICE *dev)
 354 {
 355 SK_U32 AllocFlag;
 356 DEV_NET         *pNet;
 357 SK_AC           *pAC;
 358
 359         pNet = netdev_priv(dev);
 360         pAC = pNet->pAC;
 361         AllocFlag = pAC->AllocFlag;
 362         if (pAC->PciDev) {
 363                 pci_release_regions(pAC->PciDev);
 364         }
 365         if (AllocFlag & SK_ALLOC_IRQ) {
 366                 free_irq(dev->irq, dev);
 367         }
 368         if (pAC->IoBase) {
 369                 iounmap(pAC->IoBase);
 370         }
 371         if (pAC->pDescrMem) {
 372                 BoardFreeMem(pAC);
 373         }
 374
 375 } /* FreeResources */
 376
 377 MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
 378 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
 379 MODULE_LICENSE("GPL");
 380
 381 #ifdef LINK_SPEED_A
 382 static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED;
 383 #else
 384 static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
 385 #endif
 386
 387 #ifdef LINK_SPEED_B
 388 static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED;
 389 #else
 390 static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
 391 #endif
 392
 393 #ifdef AUTO_NEG_A
 394 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
 395 #else
 396 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
 397 #endif
 398
 399 #ifdef DUP_CAP_A
 400 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
 401 #else
 402 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
 403 #endif
 404
 405 #ifdef FLOW_CTRL_A
 406 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
 407 #else
 408 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
 409 #endif
 410
 411 #ifdef ROLE_A
 412 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
 413 #else
 414 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
 415 #endif
 416
 417 #ifdef AUTO_NEG_B
 418 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
 419 #else
 420 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
 421 #endif
 422
 423 #ifdef DUP_CAP_B
 424 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
 425 #else
 426 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
 427 #endif
 428
 429 #ifdef FLOW_CTRL_B
 430 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
 431 #else
 432 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
 433 #endif
 434
 435 #ifdef ROLE_B
 436 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
 437 #else
 438 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
 439 #endif
 440
 441 #ifdef CON_TYPE
 442 static char *ConType[SK_MAX_CARD_PARAM] = CON_TYPE;
 443 #else
 444 static char *ConType[SK_MAX_CARD_PARAM] = {"", };
 445 #endif
 446
 447 #ifdef PREF_PORT
 448 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
 449 #else
 450 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
 451 #endif
 452
 453 #ifdef RLMT_MODE
 454 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
 455 #else
 456 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
 457 #endif
 458
 459 static int   IntsPerSec[SK_MAX_CARD_PARAM];
 460 static char *Moderation[SK_MAX_CARD_PARAM];
 461 static char *ModerationMask[SK_MAX_CARD_PARAM];
 462 static char *AutoSizing[SK_MAX_CARD_PARAM];
 463 static char *Stats[SK_MAX_CARD_PARAM];
 464
 465 module_param_array(Speed_A, charp, NULL, 0);
 466 module_param_array(Speed_B, charp, NULL, 0);
 467 module_param_array(AutoNeg_A, charp, NULL, 0);
 468 module_param_array(AutoNeg_B, charp, NULL, 0);
 469 module_param_array(DupCap_A, charp, NULL, 0);
 470 module_param_array(DupCap_B, charp, NULL, 0);
 471 module_param_array(FlowCtrl_A, charp, NULL, 0);
 472 module_param_array(FlowCtrl_B, charp, NULL, 0);
 473 module_param_array(Role_A, charp, NULL, 0);
 474 module_param_array(Role_B, charp, NULL, 0);
 475 module_param_array(ConType, charp, NULL, 0);
 476 module_param_array(PrefPort, charp, NULL, 0);
 477 module_param_array(RlmtMode, charp, NULL, 0);
 478 /* used for interrupt moderation */
 479 module_param_array(IntsPerSec, int, NULL, 0);
 480 module_param_array(Moderation, charp, NULL, 0);
 481 module_param_array(Stats, charp, NULL, 0);
 482 module_param_array(ModerationMask, charp, NULL, 0);
 483 module_param_array(AutoSizing, charp, NULL, 0);
 484
 485 /*****************************************************************************
 486  *
 487  *      SkGeBoardInit - do level 0 and 1 initialization
 488  *
 489  * Description:
 490  *      This function prepares the board hardware for running. The desriptor
 491  *      ring is set up, the IRQ is allocated and the configuration settings
 492  *      are examined.
 493  *
 494  * Returns:
 495  *      0, if everything is ok
 496  *      !=0, on error
 497  */
 498 static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
 499 {
 500 short   i;
 501 unsigned long Flags;
 502 char    *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
 503 char    *VerStr = VER_STRING;
 504 int     Ret;                    /* return code of request_irq */
 505 SK_BOOL DualNet;
 506
 507         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 508                 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
 509         for (i=0; i<SK_MAX_MACS; i++) {
 510                 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
 511                 pAC->TxPort[i][0].PortIndex = i;
 512                 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
 513                 pAC->RxPort[i].PortIndex = i;
 514         }
 515
 516         /* Initialize the mutexes */
 517         for (i=0; i<SK_MAX_MACS; i++) {
 518                 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
 519                 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
 520         }
 521         spin_lock_init(&pAC->SlowPathLock);
 522
 523         /* setup phy_id blink timer */
 524         pAC->BlinkTimer.function = SkGeBlinkTimer;
 525         pAC->BlinkTimer.data = (unsigned long) dev;
 526         init_timer(&pAC->BlinkTimer);
 527
 528         /* level 0 init common modules here */
 529
 530         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 531         /* Does a RESET on board ...*/
 532         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_DATA) != 0) {
 533                 printk("HWInit (0) failed.\n");
 534                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 535                 return(-EAGAIN);
 536         }
 537         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_DATA);
 538         SkEventInit(pAC, pAC->IoBase, SK_INIT_DATA);
 539         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_DATA);
 540         SkAddrInit( pAC, pAC->IoBase, SK_INIT_DATA);
 541         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_DATA);
 542         SkTimerInit(pAC, pAC->IoBase, SK_INIT_DATA);
 543
 544         pAC->BoardLevel = SK_INIT_DATA;
 545         pAC->RxBufSize  = ETH_BUF_SIZE;
 546
 547         SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
 548         SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
 549
 550         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 551
 552         /* level 1 init common modules here (HW init) */
 553         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
 554         if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
 555                 printk("sk98lin: HWInit (1) failed.\n");
 556                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 557                 return(-EAGAIN);
 558         }
 559         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
 560         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
 561         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
 562         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
 563         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
 564         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
 565
 566         /* Set chipset type support */
 567         pAC->ChipsetType = 0;
 568         if ((pAC->GIni.GIChipId == CHIP_ID_YUKON) ||
 569                 (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE)) {
 570                 pAC->ChipsetType = 1;
 571         }
 572
 573         GetConfiguration(pAC);
 574         if (pAC->RlmtNets == 2) {
 575                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
 576         }
 577
 578         pAC->BoardLevel = SK_INIT_IO;
 579         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
 580
 581         if (pAC->GIni.GIMacsFound == 2) {
 582                  Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
 583         } else if (pAC->GIni.GIMacsFound == 1) {
 584                 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
 585                         pAC->Name, dev);
 586         } else {
 587                 printk(KERN_WARNING "sk98lin: Illegal number of ports: %d\n",
 588                        pAC->GIni.GIMacsFound);
 589                 return -EAGAIN;
 590         }
 591
 592         if (Ret) {
 593                 printk(KERN_WARNING "sk98lin: Requested IRQ %d is busy.\n",
 594                        dev->irq);
 595                 return -EAGAIN;
 596         }
 597         pAC->AllocFlag |= SK_ALLOC_IRQ;
 598
 599         /* Alloc memory for this board (Mem for RxD/TxD) : */
 600         if(!BoardAllocMem(pAC)) {
 601                 printk("No memory for descriptor rings.\n");
 602                 return(-EAGAIN);
 603         }
 604
 605         BoardInitMem(pAC);
 606         /* tschilling: New common function with minimum size check. */
 607         DualNet = SK_FALSE;
 608         if (pAC->RlmtNets == 2) {
 609                 DualNet = SK_TRUE;
 610         }
 611
 612         if (SkGeInitAssignRamToQueues(
 613                 pAC,
 614                 pAC->ActivePort,
 615                 DualNet)) {
 616                 BoardFreeMem(pAC);
 617                 printk("sk98lin: SkGeInitAssignRamToQueues failed.\n");
 618                 return(-EAGAIN);
 619         }
 620
 621         return (0);
 622 } /* SkGeBoardInit */
 623
 624
 625 /*****************************************************************************
 626  *
 627  *      BoardAllocMem - allocate the memory for the descriptor rings
 628  *
 629  * Description:
 630  *      This function allocates the memory for all descriptor rings.
 631  *      Each ring is aligned for the desriptor alignment and no ring
 632  *      has a 4 GByte boundary in it (because the upper 32 bit must
 633  *      be constant for all descriptiors in one rings).
 634  *
 635  * Returns:
 636  *      SK_TRUE, if all memory could be allocated
 637  *      SK_FALSE, if not
 638  */
 639 static SK_BOOL BoardAllocMem(
 640 SK_AC   *pAC)
 641 {
 642 caddr_t         pDescrMem;      /* pointer to descriptor memory area */
 643 size_t          AllocLength;    /* length of complete descriptor area */
 644 int             i;              /* loop counter */
 645 unsigned long   BusAddr;
 646
 647
 648         /* rings plus one for alignment (do not cross 4 GB boundary) */
 649         /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
 650 #if (BITS_PER_LONG == 32)
 651         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 652 #else
 653         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 654                 + RX_RING_SIZE + 8;
 655 #endif
 656
 657         pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
 658                                          &pAC->pDescrMemDMA);
 659
 660         if (pDescrMem == NULL) {
 661                 return (SK_FALSE);
 662         }
 663         pAC->pDescrMem = pDescrMem;
 664         BusAddr = (unsigned long) pAC->pDescrMemDMA;
 665
 666         /* Descriptors need 8 byte alignment, and this is ensured
 667          * by pci_alloc_consistent.
 668          */
 669         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 670                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 671                         ("TX%d/A: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 672                         i, (unsigned long) pDescrMem,
 673                         BusAddr));
 674                 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
 675                 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
 676                 pDescrMem += TX_RING_SIZE;
 677                 BusAddr += TX_RING_SIZE;
 678
 679                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 680                         ("RX%d: pDescrMem: %lX,   PhysDescrMem: %lX\n",
 681                         i, (unsigned long) pDescrMem,
 682                         (unsigned long)BusAddr));
 683                 pAC->RxPort[i].pRxDescrRing = pDescrMem;
 684                 pAC->RxPort[i].VRxDescrRing = BusAddr;
 685                 pDescrMem += RX_RING_SIZE;
 686                 BusAddr += RX_RING_SIZE;
 687         } /* for */
 688
 689         return (SK_TRUE);
 690 } /* BoardAllocMem */
 691
 692
 693 /****************************************************************************
 694  *
 695  *      BoardFreeMem - reverse of BoardAllocMem
 696  *
 697  * Description:
 698  *      Free all memory allocated in BoardAllocMem: adapter context,
 699  *      descriptor rings, locks.
 700  *
 701  * Returns:     N/A
 702  */
 703 static void BoardFreeMem(
 704 SK_AC           *pAC)
 705 {
 706 size_t          AllocLength;    /* length of complete descriptor area */
 707
 708         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 709                 ("BoardFreeMem\n"));
 710 #if (BITS_PER_LONG == 32)
 711         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
 712 #else
 713         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
 714                 + RX_RING_SIZE + 8;
 715 #endif
 716
 717         pci_free_consistent(pAC->PciDev, AllocLength,
 718                             pAC->pDescrMem, pAC->pDescrMemDMA);
 719         pAC->pDescrMem = NULL;
 720 } /* BoardFreeMem */
 721
 722
 723 /*****************************************************************************
 724  *
 725  *      BoardInitMem - initiate the descriptor rings
 726  *
 727  * Description:
 728  *      This function sets the descriptor rings up in memory.
 729  *      The adapter is initialized with the descriptor start addresses.
 730  *
 731  * Returns:     N/A
 732  */
 733 static void BoardInitMem(
 734 SK_AC   *pAC)   /* pointer to adapter context */
 735 {
 736 int     i;              /* loop counter */
 737 int     RxDescrSize;    /* the size of a rx descriptor rounded up to alignment*/
 738 int     TxDescrSize;    /* the size of a tx descriptor rounded up to alignment*/
 739
 740         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 741                 ("BoardInitMem\n"));
 742
 743         RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 744         pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
 745         TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
 746         pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
 747
 748         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
 749                 SetupRing(
 750                         pAC,
 751                         pAC->TxPort[i][0].pTxDescrRing,
 752                         pAC->TxPort[i][0].VTxDescrRing,
 753                         (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
 754                         (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
 755                         (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
 756                         &pAC->TxPort[i][0].TxdRingFree,
 757                         SK_TRUE);
 758                 SetupRing(
 759                         pAC,
 760                         pAC->RxPort[i].pRxDescrRing,
 761                         pAC->RxPort[i].VRxDescrRing,
 762                         &pAC->RxPort[i].pRxdRingHead,
 763                         &pAC->RxPort[i].pRxdRingTail,
 764                         &pAC->RxPort[i].pRxdRingPrev,
 765                         &pAC->RxPort[i].RxdRingFree,
 766                         SK_FALSE);
 767         }
 768 } /* BoardInitMem */
 769
 770
 771 /*****************************************************************************
 772  *
 773  *      SetupRing - create one descriptor ring
 774  *
 775  * Description:
 776  *      This function creates one descriptor ring in the given memory area.
 777  *      The head, tail and number of free descriptors in the ring are set.
 778  *
 779  * Returns:
 780  *      none
 781  */
 782 static void SetupRing(
 783 SK_AC           *pAC,
 784 void            *pMemArea,      /* a pointer to the memory area for the ring */
 785 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
 786 RXD             **ppRingHead,   /* address where the head should be written */
 787 RXD             **ppRingTail,   /* address where the tail should be written */
 788 RXD             **ppRingPrev,   /* address where the tail should be written */
 789 int             *pRingFree,     /* address where the # of free descr. goes */
 790 SK_BOOL         IsTx)           /* flag: is this a tx ring */
 791 {
 792 int     i;              /* loop counter */
 793 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
 794 int     DescrNum;       /* number of descriptors per ring */
 795 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
 796 RXD     *pNextDescr;    /* pointer to the next descriptor */
 797 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
 798 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
 799
 800         if (IsTx == SK_TRUE) {
 801                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
 802                         DESCR_ALIGN;
 803                 DescrNum = TX_RING_SIZE / DescrSize;
 804         } else {
 805                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
 806                         DESCR_ALIGN;
 807                 DescrNum = RX_RING_SIZE / DescrSize;
 808         }
 809
 810         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
 811                 ("Descriptor size: %d   Descriptor Number: %d\n",
 812                 DescrSize,DescrNum));
 813
 814         pDescr = (RXD*) pMemArea;
 815         pPrevDescr = NULL;
 816         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 817         VNextDescr = VMemArea + DescrSize;
 818         for(i=0; i<DescrNum; i++) {
 819                 /* set the pointers right */
 820                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
 821                 pDescr->pNextRxd = pNextDescr;
 822                 if (!IsTx) pDescr->TcpSumStarts = ETH_HLEN << 16 | ETH_HLEN;
 823
 824                 /* advance one step */
 825                 pPrevDescr = pDescr;
 826                 pDescr = pNextDescr;
 827                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
 828                 VNextDescr += DescrSize;
 829         }
 830         pPrevDescr->pNextRxd = (RXD*) pMemArea;
 831         pPrevDescr->VNextRxd = VMemArea;
 832         pDescr = (RXD*) pMemArea;
 833         *ppRingHead = (RXD*) pMemArea;
 834         *ppRingTail = *ppRingHead;
 835         *ppRingPrev = pPrevDescr;
 836         *pRingFree = DescrNum;
 837 } /* SetupRing */
 838
 839
 840 /*****************************************************************************
 841  *
 842  *      PortReInitBmu - re-initiate the descriptor rings for one port
 843  *
 844  * Description:
 845  *      This function reinitializes the descriptor rings of one port
 846  *      in memory. The port must be stopped before.
 847  *      The HW is initialized with the descriptor start addresses.
 848  *
 849  * Returns:
 850  *      none
 851  */
 852 static void PortReInitBmu(
 853 SK_AC   *pAC,           /* pointer to adapter context */
 854 int     PortIndex)      /* index of the port for which to re-init */
 855 {
 856         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
 857                 ("PortReInitBmu "));
 858
 859         /* set address of first descriptor of ring in BMU */
 860         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_L,
 861                 (uint32_t)(((caddr_t)
 862                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 863                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 864                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
 865                 0xFFFFFFFF));
 866         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ Q_DA_H,
 867                 (uint32_t)(((caddr_t)
 868                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
 869                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
 870                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
 871         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_L,
 872                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 873                 pAC->RxPort[PortIndex].pRxDescrRing +
 874                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
 875         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+Q_DA_H,
 876                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
 877                 pAC->RxPort[PortIndex].pRxDescrRing +
 878                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
 879 } /* PortReInitBmu */
 880
 881
 882 /****************************************************************************
 883  *
 884  *      SkGeIsr - handle adapter interrupts
 885  *
 886  * Description:
 887  *      The interrupt routine is called when the network adapter
 888  *      generates an interrupt. It may also be called if another device
 889  *      shares this interrupt vector with the driver.
 890  *
 891  * Returns: N/A
 892  *
 893  */
 894 static SkIsrRetVar SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
 895 {
 896 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
 897 DEV_NET         *pNet;
 898 SK_AC           *pAC;
 899 SK_U32          IntSrc;         /* interrupts source register contents */
 900
 901         pNet = netdev_priv(dev);
 902         pAC = pNet->pAC;
 903
 904         /*
 905          * Check and process if its our interrupt
 906          */
 907         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
 908         if (IntSrc == 0) {
 909                 return SkIsrRetNone;
 910         }
 911
 912         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
 913 #if 0 /* software irq currently not used */
 914                 if (IntSrc & IS_IRQ_SW) {
 915                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 916                                 SK_DBGCAT_DRV_INT_SRC,
 917                                 ("Software IRQ\n"));
 918                 }
 919 #endif
 920                 if (IntSrc & IS_R1_F) {
 921                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 922                                 SK_DBGCAT_DRV_INT_SRC,
 923                                 ("EOF RX1 IRQ\n"));
 924                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
 925                         SK_PNMI_CNT_RX_INTR(pAC, 0);
 926                 }
 927                 if (IntSrc & IS_R2_F) {
 928                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 929                                 SK_DBGCAT_DRV_INT_SRC,
 930                                 ("EOF RX2 IRQ\n"));
 931                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
 932                         SK_PNMI_CNT_RX_INTR(pAC, 1);
 933                 }
 934 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 935                 if (IntSrc & IS_XA1_F) {
 936                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 937                                 SK_DBGCAT_DRV_INT_SRC,
 938                                 ("EOF AS TX1 IRQ\n"));
 939                         SK_PNMI_CNT_TX_INTR(pAC, 0);
 940                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 941                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
 942                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
 943                 }
 944                 if (IntSrc & IS_XA2_F) {
 945                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 946                                 SK_DBGCAT_DRV_INT_SRC,
 947                                 ("EOF AS TX2 IRQ\n"));
 948                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 949                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 950                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
 951                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
 952                 }
 953 #if 0 /* only if sync. queues used */
 954                 if (IntSrc & IS_XS1_F) {
 955                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 956                                 SK_DBGCAT_DRV_INT_SRC,
 957                                 ("EOF SY TX1 IRQ\n"));
 958                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 959                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 960                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
 961                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
 962                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
 963                 }
 964                 if (IntSrc & IS_XS2_F) {
 965                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
 966                                 SK_DBGCAT_DRV_INT_SRC,
 967                                 ("EOF SY TX2 IRQ\n"));
 968                         SK_PNMI_CNT_TX_INTR(pAC, 1);
 969                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 970                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
 971                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
 972                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
 973                 }
 974 #endif
 975 #endif
 976
 977                 /* do all IO at once */
 978                 if (IntSrc & IS_R1_F)
 979                         ClearAndStartRx(pAC, 0);
 980                 if (IntSrc & IS_R2_F)
 981                         ClearAndStartRx(pAC, 1);
 982 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
 983                 if (IntSrc & IS_XA1_F)
 984                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
 985                 if (IntSrc & IS_XA2_F)
 986                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
 987 #endif
 988                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
 989         } /* while (IntSrc & IRQ_MASK != 0) */
 990
 991         IntSrc &= pAC->GIni.GIValIrqMask;
 992         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
 993                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
 994                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
 995                 pAC->CheckQueue = SK_FALSE;
 996                 spin_lock(&pAC->SlowPathLock);
 997                 if (IntSrc & SPECIAL_IRQS)
 998                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
 999
1000                 SkEventDispatcher(pAC, pAC->IoBase);
1001                 spin_unlock(&pAC->SlowPathLock);
1002         }
1003         /*
1004          * do it all again is case we cleared an interrupt that
1005          * came in after handling the ring (OUTs may be delayed
1006          * in hardware buffers, but are through after IN)
1007          *
1008          * rroesler: has been commented out and shifted to
1009          *           SkGeDrvEvent(), because it is timer
1010          *           guarded now
1011          *
1012         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1013         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1014          */
1015
1016         if (pAC->CheckQueue) {
1017                 pAC->CheckQueue = SK_FALSE;
1018                 spin_lock(&pAC->SlowPathLock);
1019                 SkEventDispatcher(pAC, pAC->IoBase);
1020                 spin_unlock(&pAC->SlowPathLock);
1021         }
1022
1023         /* IRQ is processed - Enable IRQs again*/
1024         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1025
1026                 return SkIsrRetHandled;
1027 } /* SkGeIsr */
1028
1029
1030 /****************************************************************************
1031  *
1032  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1033  *
1034  * Description:
1035  *      The interrupt routine is called when the network adapter
1036  *      generates an interrupt. It may also be called if another device
1037  *      shares this interrupt vector with the driver.
1038  *      This is the same as above, but handles only one port.
1039  *
1040  * Returns: N/A
1041  *
1042  */
1043 static SkIsrRetVar SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1044 {
1045 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1046 DEV_NET         *pNet;
1047 SK_AC           *pAC;
1048 SK_U32          IntSrc;         /* interrupts source register contents */
1049
1050         pNet = netdev_priv(dev);
1051         pAC = pNet->pAC;
1052
1053         /*
1054          * Check and process if its our interrupt
1055          */
1056         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1057         if (IntSrc == 0) {
1058                 return SkIsrRetNone;
1059         }
1060
1061         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1062 #if 0 /* software irq currently not used */
1063                 if (IntSrc & IS_IRQ_SW) {
1064                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1065                                 SK_DBGCAT_DRV_INT_SRC,
1066                                 ("Software IRQ\n"));
1067                 }
1068 #endif
1069                 if (IntSrc & IS_R1_F) {
1070                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1071                                 SK_DBGCAT_DRV_INT_SRC,
1072                                 ("EOF RX1 IRQ\n"));
1073                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1074                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1075                 }
1076 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1077                 if (IntSrc & IS_XA1_F) {
1078                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1079                                 SK_DBGCAT_DRV_INT_SRC,
1080                                 ("EOF AS TX1 IRQ\n"));
1081                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1082                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1083                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1084                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1085                 }
1086 #if 0 /* only if sync. queues used */
1087                 if (IntSrc & IS_XS1_F) {
1088                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1089                                 SK_DBGCAT_DRV_INT_SRC,
1090                                 ("EOF SY TX1 IRQ\n"));
1091                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1092                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1093                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1094                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1095                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1096                 }
1097 #endif
1098 #endif
1099
1100                 /* do all IO at once */
1101                 if (IntSrc & IS_R1_F)
1102                         ClearAndStartRx(pAC, 0);
1103 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1104                 if (IntSrc & IS_XA1_F)
1105                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1106 #endif
1107                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1108         } /* while (IntSrc & IRQ_MASK != 0) */
1109
1110         IntSrc &= pAC->GIni.GIValIrqMask;
1111         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1112                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1113                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1114                 pAC->CheckQueue = SK_FALSE;
1115                 spin_lock(&pAC->SlowPathLock);
1116                 if (IntSrc & SPECIAL_IRQS)
1117                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1118
1119                 SkEventDispatcher(pAC, pAC->IoBase);
1120                 spin_unlock(&pAC->SlowPathLock);
1121         }
1122         /*
1123          * do it all again is case we cleared an interrupt that
1124          * came in after handling the ring (OUTs may be delayed
1125          * in hardware buffers, but are through after IN)
1126          *
1127          * rroesler: has been commented out and shifted to
1128          *           SkGeDrvEvent(), because it is timer
1129          *           guarded now
1130          *
1131         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1132          */
1133
1134         /* IRQ is processed - Enable IRQs again*/
1135         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1136
1137                 return SkIsrRetHandled;
1138 } /* SkGeIsrOnePort */
1139
1140 #ifdef CONFIG_NET_POLL_CONTROLLER
1141 /****************************************************************************
1142  *
1143  *      SkGePollController - polling receive, for netconsole
1144  *
1145  * Description:
1146  *      Polling receive - used by netconsole and other diagnostic tools
1147  *      to allow network i/o with interrupts disabled.
1148  *
1149  * Returns: N/A
1150  */
1151 static void SkGePollController(struct net_device *dev)
1152 {
1153         disable_irq(dev->irq);
1154         SkGeIsr(dev->irq, dev, NULL);
1155         enable_irq(dev->irq);
1156 }
1157 #endif
1158
1159 /****************************************************************************
1160  *
1161  *      SkGeOpen - handle start of initialized adapter
1162  *
1163  * Description:
1164  *      This function starts the initialized adapter.
1165  *      The board level variable is set and the adapter is
1166  *      brought to full functionality.
1167  *      The device flags are set for operation.
1168  *      Do all necessary level 2 initialization, enable interrupts and
1169  *      give start command to RLMT.
1170  *
1171  * Returns:
1172  *      0 on success
1173  *      != 0 on error
1174  */
1175 static int SkGeOpen(
1176 struct SK_NET_DEVICE    *dev)
1177 {
1178         DEV_NET                 *pNet;
1179         SK_AC                   *pAC;
1180         unsigned long   Flags;          /* for spin lock */
1181         int                             i;
1182         SK_EVPARA               EvPara;         /* an event parameter union */
1183
1184         pNet = netdev_priv(dev);
1185         pAC = pNet->pAC;
1186
1187         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1188                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1189
1190 #ifdef SK_DIAG_SUPPORT
1191         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1192                 if (pAC->Pnmi.DiagAttached == SK_DIAG_RUNNING) {
1193                         return (-1);   /* still in use by diag; deny actions */
1194                 }
1195         }
1196 #endif
1197
1198         /* Set blink mode */
1199         if ((pAC->PciDev->vendor == 0x1186) || (pAC->PciDev->vendor == 0x11ab ))
1200                 pAC->GIni.GILedBlinkCtrl = OEM_CONFIG_VALUE;
1201
1202         if (pAC->BoardLevel == SK_INIT_DATA) {
1203                 /* level 1 init common modules here */
1204                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_IO) != 0) {
1205                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1206                         return (-1);
1207                 }
1208                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_IO);
1209                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_IO);
1210                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_IO);
1211                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_IO);
1212                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_IO);
1213                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_IO);
1214                 pAC->BoardLevel = SK_INIT_IO;
1215         }
1216
1217         if (pAC->BoardLevel != SK_INIT_RUN) {
1218                 /* tschilling: Level 2 init modules here, check return value. */
1219                 if (SkGeInit(pAC, pAC->IoBase, SK_INIT_RUN) != 0) {
1220                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1221                         return (-1);
1222                 }
1223                 SkI2cInit       (pAC, pAC->IoBase, SK_INIT_RUN);
1224                 SkEventInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1225                 SkPnmiInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1226                 SkAddrInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1227                 SkRlmtInit      (pAC, pAC->IoBase, SK_INIT_RUN);
1228                 SkTimerInit     (pAC, pAC->IoBase, SK_INIT_RUN);
1229                 pAC->BoardLevel = SK_INIT_RUN;
1230         }
1231
1232         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1233                 /* Enable transmit descriptor polling. */
1234                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1235                 FillRxRing(pAC, &pAC->RxPort[i]);
1236         }
1237         SkGeYellowLED(pAC, pAC->IoBase, 1);
1238
1239         StartDrvCleanupTimer(pAC);
1240         SkDimEnableModerationIfNeeded(pAC);
1241         SkDimDisplayModerationSettings(pAC);
1242
1243         pAC->GIni.GIValIrqMask &= IRQ_MASK;
1244
1245         /* enable Interrupts */
1246         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
1247         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1248
1249         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1250
1251         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1252                 EvPara.Para32[0] = pAC->RlmtNets;
1253                 EvPara.Para32[1] = -1;
1254                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1255                         EvPara);
1256                 EvPara.Para32[0] = pAC->RlmtMode;
1257                 EvPara.Para32[1] = 0;
1258                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1259                         EvPara);
1260         }
1261
1262         EvPara.Para32[0] = pNet->NetNr;
1263         EvPara.Para32[1] = -1;
1264         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1265         SkEventDispatcher(pAC, pAC->IoBase);
1266         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1267
1268         pAC->MaxPorts++;
1269         pNet->Up = 1;
1270
1271
1272         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1273                 ("SkGeOpen suceeded\n"));
1274
1275         return (0);
1276 } /* SkGeOpen */
1277
1278
1279 /****************************************************************************
1280  *
1281  *      SkGeClose - Stop initialized adapter
1282  *
1283  * Description:
1284  *      Close initialized adapter.
1285  *
1286  * Returns:
1287  *      0 - on success
1288  *      error code - on error
1289  */
1290 static int SkGeClose(
1291 struct SK_NET_DEVICE    *dev)
1292 {
1293         DEV_NET         *pNet;
1294         DEV_NET         *newPtrNet;
1295         SK_AC           *pAC;
1296
1297         unsigned long   Flags;          /* for spin lock */
1298         int             i;
1299         int             PortIdx;
1300         SK_EVPARA       EvPara;
1301
1302         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1303                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1304
1305         pNet = netdev_priv(dev);
1306         pAC = pNet->pAC;
1307
1308 #ifdef SK_DIAG_SUPPORT
1309         if (pAC->DiagModeActive == DIAG_ACTIVE) {
1310                 if (pAC->DiagFlowCtrl == SK_FALSE) {
1311                         /*
1312                         ** notify that the interface which has been closed
1313                         ** by operator interaction must not be started up
1314                         ** again when the DIAG has finished.
1315                         */
1316                         newPtrNet = netdev_priv(pAC->dev[0]);
1317                         if (newPtrNet == pNet) {
1318                                 pAC->WasIfUp[0] = SK_FALSE;
1319                         } else {
1320                                 pAC->WasIfUp[1] = SK_FALSE;
1321                         }
1322                         return 0; /* return to system everything is fine... */
1323                 } else {
1324                         pAC->DiagFlowCtrl = SK_FALSE;
1325                 }
1326         }
1327 #endif
1328
1329         netif_stop_queue(dev);
1330
1331         if (pAC->RlmtNets == 1)
1332                 PortIdx = pAC->ActivePort;
1333         else
1334                 PortIdx = pNet->NetNr;
1335
1336         StopDrvCleanupTimer(pAC);
1337
1338         /*
1339          * Clear multicast table, promiscuous mode ....
1340          */
1341         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1342         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1343                 SK_PROM_MODE_NONE);
1344
1345         if (pAC->MaxPorts == 1) {
1346                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1347                 /* disable interrupts */
1348                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1349                 EvPara.Para32[0] = pNet->NetNr;
1350                 EvPara.Para32[1] = -1;
1351                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1352                 SkEventDispatcher(pAC, pAC->IoBase);
1353                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1354                 /* stop the hardware */
1355                 SkGeDeInit(pAC, pAC->IoBase);
1356                 pAC->BoardLevel = SK_INIT_DATA;
1357                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1358         } else {
1359
1360                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1361                 EvPara.Para32[0] = pNet->NetNr;
1362                 EvPara.Para32[1] = -1;
1363                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1364                 SkPnmiEvent(pAC, pAC->IoBase, SK_PNMI_EVT_XMAC_RESET, EvPara);
1365                 SkEventDispatcher(pAC, pAC->IoBase);
1366                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1367
1368                 /* Stop port */
1369                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1370                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1371                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1372                         SK_STOP_ALL, SK_HARD_RST);
1373                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1374                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1375         }
1376
1377         if (pAC->RlmtNets == 1) {
1378                 /* clear all descriptor rings */
1379                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1380                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1381                         ClearRxRing(pAC, &pAC->RxPort[i]);
1382                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1383                 }
1384         } else {
1385                 /* clear port descriptor rings */
1386                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1387                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1388                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1389         }
1390
1391         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1392                 ("SkGeClose: done "));
1393
1394         SK_MEMSET(&(pAC->PnmiBackup), 0, sizeof(SK_PNMI_STRUCT_DATA));
1395         SK_MEMCPY(&(pAC->PnmiBackup), &(pAC->PnmiStruct),
1396                         sizeof(SK_PNMI_STRUCT_DATA));
1397
1398         pAC->MaxPorts--;
1399         pNet->Up = 0;
1400
1401         return (0);
1402 } /* SkGeClose */
1403
1404
1405 /*****************************************************************************
1406  *
1407  *      SkGeXmit - Linux frame transmit function
1408  *
1409  * Description:
1410  *      The system calls this function to send frames onto the wire.
1411  *      It puts the frame in the tx descriptor ring. If the ring is
1412  *      full then, the 'tbusy' flag is set.
1413  *
1414  * Returns:
1415  *      0, if everything is ok
1416  *      !=0, on error
1417  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
1418  *      allocated skb's) !!!
1419  */
1420 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
1421 {
1422 DEV_NET         *pNet;
1423 SK_AC           *pAC;
1424 int                     Rc;     /* return code of XmitFrame */
1425
1426         pNet = netdev_priv(dev);
1427         pAC = pNet->pAC;
1428
1429         if ((!skb_shinfo(skb)->nr_frags) ||
1430                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
1431                 /* Don't activate scatter-gather and hardware checksum */
1432
1433                 if (pAC->RlmtNets == 2)
1434                         Rc = XmitFrame(
1435                                 pAC,
1436                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1437                                 skb);
1438                 else
1439                         Rc = XmitFrame(
1440                                 pAC,
1441                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1442                                 skb);
1443         } else {
1444                 /* scatter-gather and hardware TCP checksumming anabled*/
1445                 if (pAC->RlmtNets == 2)
1446                         Rc = XmitFrameSG(
1447                                 pAC,
1448                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
1449                                 skb);
1450                 else
1451                         Rc = XmitFrameSG(
1452                                 pAC,
1453                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
1454                                 skb);
1455         }
1456
1457         /* Transmitter out of resources? */
1458         if (Rc <= 0) {
1459                 netif_stop_queue(dev);
1460         }
1461
1462         /* If not taken, give buffer ownership back to the
1463          * queueing layer.
1464          */
1465         if (Rc < 0)
1466                 return (1);
1467
1468         dev->trans_start = jiffies;
1469         return (0);
1470 } /* SkGeXmit */
1471
1472
1473 /*****************************************************************************
1474  *
1475  *      XmitFrame - fill one socket buffer into the transmit ring
1476  *
1477  * Description:
1478  *      This function puts a message into the transmit descriptor ring
1479  *      if there is a descriptors left.
1480  *      Linux skb's consist of only one continuous buffer.
1481  *      The first step locks the ring. It is held locked
1482  *      all time to avoid problems with SWITCH_../PORT_RESET.
1483  *      Then the descriptoris allocated.
1484  *      The second part is linking the buffer to the descriptor.
1485  *      At the very last, the Control field of the descriptor
1486  *      is made valid for the BMU and a start TX command is given
1487  *      if necessary.
1488  *
1489  * Returns:
1490  *      > 0 - on succes: the number of bytes in the message
1491  *      = 0 - on resource shortage: this frame sent or dropped, now
1492  *              the ring is full ( -> set tbusy)
1493  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1494  */
1495 static int XmitFrame(
1496 SK_AC           *pAC,           /* pointer to adapter context           */
1497 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1498 struct sk_buff  *pMessage)      /* pointer to send-message              */
1499 {
1500         TXD             *pTxd;          /* the rxd to fill */
1501         TXD             *pOldTxd;
1502         unsigned long    Flags;
1503         SK_U64           PhysAddr;
1504         int              BytesSend = pMessage->len;
1505
1506         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("X"));
1507
1508         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1509 #ifndef USE_TX_COMPLETE
1510         FreeTxDescriptors(pAC, pTxPort);
1511 #endif
1512         if (pTxPort->TxdRingFree == 0) {
1513                 /*
1514                 ** no enough free descriptors in ring at the moment.
1515                 ** Maybe free'ing some old one help?
1516                 */
1517                 FreeTxDescriptors(pAC, pTxPort);
1518                 if (pTxPort->TxdRingFree == 0) {
1519                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1520                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1521                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1522                                 SK_DBGCAT_DRV_TX_PROGRESS,
1523                                 ("XmitFrame failed\n"));
1524                         /*
1525                         ** the desired message can not be sent
1526                         ** Because tbusy seems to be set, the message
1527                         ** should not be freed here. It will be used
1528                         ** by the scheduler of the ethernet handler
1529                         */
1530                         return (-1);
1531                 }
1532         }
1533
1534         /*
1535         ** If the passed socket buffer is of smaller MTU-size than 60,
1536         ** copy everything into new buffer and fill all bytes between
1537         ** the original packet end and the new packet end of 60 with 0x00.
1538         ** This is to resolve faulty padding by the HW with 0xaa bytes.
1539         */
1540         if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
1541                 if ((pMessage = skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) == NULL) {
1542                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1543                         return 0;
1544                 }
1545                 pMessage->len = C_LEN_ETHERNET_MINSIZE;
1546         }
1547
1548         /*
1549         ** advance head counter behind descriptor needed for this frame,
1550         ** so that needed descriptor is reserved from that on. The next
1551         ** action will be to add the passed buffer to the TX-descriptor
1552         */
1553         pTxd = pTxPort->pTxdRingHead;
1554         pTxPort->pTxdRingHead = pTxd->pNextTxd;
1555         pTxPort->TxdRingFree--;
1556
1557 #ifdef SK_DUMP_TX
1558         DumpMsg(pMessage, "XmitFrame");
1559 #endif
1560
1561         /*
1562         ** First step is to map the data to be sent via the adapter onto
1563         ** the DMA memory. Kernel 2.2 uses virt_to_bus(), but kernels 2.4
1564         ** and 2.6 need to use pci_map_page() for that mapping.
1565         */
1566         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1567                                         virt_to_page(pMessage->data),
1568                                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1569                                         pMessage->len,
1570                                         PCI_DMA_TODEVICE);
1571         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1572         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1573         pTxd->pMBuf     = pMessage;
1574
1575         if (pMessage->ip_summed == CHECKSUM_HW) {
1576                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1577                 u16 offset = hdrlen + pMessage->csum;
1578
1579                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1580                         (pAC->GIni.GIChipRev == 0) &&
1581                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1582                         pTxd->TBControl = BMU_TCP_CHECK;
1583                 } else {
1584                         pTxd->TBControl = BMU_UDP_CHECK;
1585                 }
1586
1587                 pTxd->TcpSumOfs = 0;
1588                 pTxd->TcpSumSt  = hdrlen;
1589                 pTxd->TcpSumWr  = offset;
1590
1591                 pTxd->TBControl |= BMU_OWN | BMU_STF |
1592                                    BMU_SW  | BMU_EOF |
1593 #ifdef USE_TX_COMPLETE
1594                                    BMU_IRQ_EOF |
1595 #endif
1596                                    pMessage->len;
1597         } else {
1598                 pTxd->TBControl = BMU_OWN | BMU_STF | BMU_CHECK |
1599                                   BMU_SW  | BMU_EOF |
1600 #ifdef USE_TX_COMPLETE
1601                                    BMU_IRQ_EOF |
1602 #endif
1603                         pMessage->len;
1604         }
1605
1606         /*
1607         ** If previous descriptor already done, give TX start cmd
1608         */
1609         pOldTxd = xchg(&pTxPort->pTxdRingPrev, pTxd);
1610         if ((pOldTxd->TBControl & BMU_OWN) == 0) {
1611                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1612         }
1613
1614         /*
1615         ** after releasing the lock, the skb may immediately be free'd
1616         */
1617         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1618         if (pTxPort->TxdRingFree != 0) {
1619                 return (BytesSend);
1620         } else {
1621                 return (0);
1622         }
1623
1624 } /* XmitFrame */
1625
1626 /*****************************************************************************
1627  *
1628  *      XmitFrameSG - fill one socket buffer into the transmit ring
1629  *                (use SG and TCP/UDP hardware checksumming)
1630  *
1631  * Description:
1632  *      This function puts a message into the transmit descriptor ring
1633  *      if there is a descriptors left.
1634  *
1635  * Returns:
1636  *      > 0 - on succes: the number of bytes in the message
1637  *      = 0 - on resource shortage: this frame sent or dropped, now
1638  *              the ring is full ( -> set tbusy)
1639  *      < 0 - on failure: other problems ( -> return failure to upper layers)
1640  */
1641 static int XmitFrameSG(
1642 SK_AC           *pAC,           /* pointer to adapter context           */
1643 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
1644 struct sk_buff  *pMessage)      /* pointer to send-message              */
1645 {
1646
1647         TXD             *pTxd;
1648         TXD             *pTxdFst;
1649         TXD             *pTxdLst;
1650         int              CurrFrag;
1651         int              BytesSend;
1652         skb_frag_t      *sk_frag;
1653         SK_U64           PhysAddr;
1654         unsigned long    Flags;
1655         SK_U32           Control;
1656
1657         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1658 #ifndef USE_TX_COMPLETE
1659         FreeTxDescriptors(pAC, pTxPort);
1660 #endif
1661         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
1662                 FreeTxDescriptors(pAC, pTxPort);
1663                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
1664                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1665                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
1666                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1667                                 SK_DBGCAT_DRV_TX_PROGRESS,
1668                                 ("XmitFrameSG failed - Ring full\n"));
1669                                 /* this message can not be sent now */
1670                         return(-1);
1671                 }
1672         }
1673
1674         pTxd      = pTxPort->pTxdRingHead;
1675         pTxdFst   = pTxd;
1676         pTxdLst   = pTxd;
1677         BytesSend = 0;
1678
1679         /*
1680         ** Map the first fragment (header) into the DMA-space
1681         */
1682         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1683                         virt_to_page(pMessage->data),
1684                         ((unsigned long) pMessage->data & ~PAGE_MASK),
1685                         skb_headlen(pMessage),
1686                         PCI_DMA_TODEVICE);
1687
1688         pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1689         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1690
1691         /*
1692         ** Does the HW need to evaluate checksum for TCP or UDP packets?
1693         */
1694         if (pMessage->ip_summed == CHECKSUM_HW) {
1695                 u16 hdrlen = pMessage->h.raw - pMessage->data;
1696                 u16 offset = hdrlen + pMessage->csum;
1697
1698                 Control = BMU_STFWD;
1699
1700                 /*
1701                 ** We have to use the opcode for tcp here,  because the
1702                 ** opcode for udp is not working in the hardware yet
1703                 ** (Revision 2.0)
1704                 */
1705                 if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
1706                         (pAC->GIni.GIChipRev == 0) &&
1707                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
1708                         Control |= BMU_TCP_CHECK;
1709                 } else {
1710                         Control |= BMU_UDP_CHECK;
1711                 }
1712
1713                 pTxd->TcpSumOfs = 0;
1714                 pTxd->TcpSumSt  = hdrlen;
1715                 pTxd->TcpSumWr  = offset;
1716         } else
1717                 Control = BMU_CHECK | BMU_SW;
1718
1719         pTxd->TBControl = BMU_STF | Control | skb_headlen(pMessage);
1720
1721         pTxd = pTxd->pNextTxd;
1722         pTxPort->TxdRingFree--;
1723         BytesSend += skb_headlen(pMessage);
1724
1725         /*
1726         ** Browse over all SG fragments and map each of them into the DMA space
1727         */
1728         for (CurrFrag = 0; CurrFrag < skb_shinfo(pMessage)->nr_frags; CurrFrag++) {
1729                 sk_frag = &skb_shinfo(pMessage)->frags[CurrFrag];
1730                 /*
1731                 ** we already have the proper value in entry
1732                 */
1733                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1734                                                  sk_frag->page,
1735                                                  sk_frag->page_offset,
1736                                                  sk_frag->size,
1737                                                  PCI_DMA_TODEVICE);
1738
1739                 pTxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1740                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1741                 pTxd->pMBuf     = pMessage;
1742
1743                 pTxd->TBControl = Control | BMU_OWN | sk_frag->size;;
1744
1745                 /*
1746                 ** Do we have the last fragment?
1747                 */
1748                 if( (CurrFrag+1) == skb_shinfo(pMessage)->nr_frags )  {
1749 #ifdef USE_TX_COMPLETE
1750                         pTxd->TBControl |= BMU_EOF | BMU_IRQ_EOF;
1751 #else
1752                         pTxd->TBControl |= BMU_EOF;
1753 #endif
1754                         pTxdFst->TBControl |= BMU_OWN | BMU_SW;
1755                 }
1756                 pTxdLst = pTxd;
1757                 pTxd    = pTxd->pNextTxd;
1758                 pTxPort->TxdRingFree--;
1759                 BytesSend += sk_frag->size;
1760         }
1761
1762         /*
1763         ** If previous descriptor already done, give TX start cmd
1764         */
1765         if ((pTxPort->pTxdRingPrev->TBControl & BMU_OWN) == 0) {
1766                 SK_OUT8(pTxPort->HwAddr, Q_CSR, CSR_START);
1767         }
1768
1769         pTxPort->pTxdRingPrev = pTxdLst;
1770         pTxPort->pTxdRingHead = pTxd;
1771
1772         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1773
1774         if (pTxPort->TxdRingFree > 0) {
1775                 return (BytesSend);
1776         } else {
1777                 return (0);
1778         }
1779 }
1780
1781 /*****************************************************************************
1782  *
1783  *      FreeTxDescriptors - release descriptors from the descriptor ring
1784  *
1785  * Description:
1786  *      This function releases descriptors from a transmit ring if they
1787  *      have been sent by the BMU.
1788  *      If a descriptors is sent, it can be freed and the message can
1789  *      be freed, too.
1790  *      The SOFTWARE controllable bit is used to prevent running around a
1791  *      completely free ring for ever. If this bit is no set in the
1792  *      frame (by XmitFrame), this frame has never been sent or is
1793  *      already freed.
1794  *      The Tx descriptor ring lock must be held while calling this function !!!
1795  *
1796  * Returns:
1797  *      none
1798  */
1799 static void FreeTxDescriptors(
1800 SK_AC   *pAC,           /* pointer to the adapter context */
1801 TX_PORT *pTxPort)       /* pointer to destination port structure */
1802 {
1803 TXD     *pTxd;          /* pointer to the checked descriptor */
1804 TXD     *pNewTail;      /* pointer to 'end' of the ring */
1805 SK_U32  Control;        /* TBControl field of descriptor */
1806 SK_U64  PhysAddr;       /* address of DMA mapping */
1807
1808         pNewTail = pTxPort->pTxdRingTail;
1809         pTxd     = pNewTail;
1810         /*
1811         ** loop forever; exits if BMU_SW bit not set in start frame
1812         ** or BMU_OWN bit set in any frame
1813         */
1814         while (1) {
1815                 Control = pTxd->TBControl;
1816                 if ((Control & BMU_SW) == 0) {
1817                         /*
1818                         ** software controllable bit is set in first
1819                         ** fragment when given to BMU. Not set means that
1820                         ** this fragment was never sent or is already
1821                         ** freed ( -> ring completely free now).
1822                         */
1823                         pTxPort->pTxdRingTail = pTxd;
1824                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1825                         return;
1826                 }
1827                 if (Control & BMU_OWN) {
1828                         pTxPort->pTxdRingTail = pTxd;
1829                         if (pTxPort->TxdRingFree > 0) {
1830                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
1831                         }
1832                         return;
1833                 }
1834
1835                 /*
1836                 ** release the DMA mapping, because until not unmapped
1837                 ** this buffer is considered being under control of the
1838                 ** adapter card!
1839                 */
1840                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
1841                 PhysAddr |= (SK_U64) pTxd->VDataLow;
1842                 pci_unmap_page(pAC->PciDev, PhysAddr,
1843                                  pTxd->pMBuf->len,
1844                                  PCI_DMA_TODEVICE);
1845
1846                 if (Control & BMU_EOF)
1847                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
1848
1849                 pTxPort->TxdRingFree++;
1850                 pTxd->TBControl &= ~BMU_SW;
1851                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
1852         } /* while(forever) */
1853 } /* FreeTxDescriptors */
1854
1855 /*****************************************************************************
1856  *
1857  *      FillRxRing - fill the receive ring with valid descriptors
1858  *
1859  * Description:
1860  *      This function fills the receive ring descriptors with data
1861  *      segments and makes them valid for the BMU.
1862  *      The active ring is filled completely, if possible.
1863  *      The non-active ring is filled only partial to save memory.
1864  *
1865  * Description of rx ring structure:
1866  *      head - points to the descriptor which will be used next by the BMU
1867  *      tail - points to the next descriptor to give to the BMU
1868  *
1869  * Returns:     N/A
1870  */
1871 static void FillRxRing(
1872 SK_AC           *pAC,           /* pointer to the adapter context */
1873 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
1874                                    should be filled */
1875 {
1876 unsigned long   Flags;
1877
1878         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
1879         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
1880                 if(!FillRxDescriptor(pAC, pRxPort))
1881                         break;
1882         }
1883         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
1884 } /* FillRxRing */
1885
1886
1887 /*****************************************************************************
1888  *
1889  *      FillRxDescriptor - fill one buffer into the receive ring
1890  *
1891  * Description:
1892  *      The function allocates a new receive buffer and
1893  *      puts it into the next descriptor.
1894  *
1895  * Returns:
1896  *      SK_TRUE - a buffer was added to the ring
1897  *      SK_FALSE - a buffer could not be added
1898  */
1899 static SK_BOOL FillRxDescriptor(
1900 SK_AC           *pAC,           /* pointer to the adapter context struct */
1901 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
1902 {
1903 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
1904 RXD             *pRxd;          /* the rxd to fill */
1905 SK_U16          Length;         /* data fragment length */
1906 SK_U64          PhysAddr;       /* physical address of a rx buffer */
1907
1908         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
1909         if (pMsgBlock == NULL) {
1910                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1911                         SK_DBGCAT_DRV_ENTRY,
1912                         ("%s: Allocation of rx buffer failed !\n",
1913                         pAC->dev[pRxPort->PortIndex]->name));
1914                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
1915                 return(SK_FALSE);
1916         }
1917         skb_reserve(pMsgBlock, 2); /* to align IP frames */
1918         /* skb allocated ok, so add buffer */
1919         pRxd = pRxPort->pRxdRingTail;
1920         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1921         pRxPort->RxdRingFree--;
1922         Length = pAC->RxBufSize;
1923         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
1924                 virt_to_page(pMsgBlock->data),
1925                 ((unsigned long) pMsgBlock->data &
1926                 ~PAGE_MASK),
1927                 pAC->RxBufSize - 2,
1928                 PCI_DMA_FROMDEVICE);
1929
1930         pRxd->VDataLow  = (SK_U32) (PhysAddr & 0xffffffff);
1931         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1932         pRxd->pMBuf     = pMsgBlock;
1933         pRxd->RBControl = BMU_OWN       |
1934                           BMU_STF       |
1935                           BMU_IRQ_EOF   |
1936                           BMU_TCP_CHECK |
1937                           Length;
1938         return (SK_TRUE);
1939
1940 } /* FillRxDescriptor */
1941
1942
1943 /*****************************************************************************
1944  *
1945  *      ReQueueRxBuffer - fill one buffer back into the receive ring
1946  *
1947  * Description:
1948  *      Fill a given buffer back into the rx ring. The buffer
1949  *      has been previously allocated and aligned, and its phys.
1950  *      address calculated, so this is no more necessary.
1951  *
1952  * Returns: N/A
1953  */
1954 static void ReQueueRxBuffer(
1955 SK_AC           *pAC,           /* pointer to the adapter context struct */
1956 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
1957 struct sk_buff  *pMsg,          /* pointer to the buffer */
1958 SK_U32          PhysHigh,       /* phys address high dword */
1959 SK_U32          PhysLow)        /* phys address low dword */
1960 {
1961 RXD             *pRxd;          /* the rxd to fill */
1962 SK_U16          Length;         /* data fragment length */
1963
1964         pRxd = pRxPort->pRxdRingTail;
1965         pRxPort->pRxdRingTail = pRxd->pNextRxd;
1966         pRxPort->RxdRingFree--;
1967         Length = pAC->RxBufSize;
1968
1969         pRxd->VDataLow  = PhysLow;
1970         pRxd->VDataHigh = PhysHigh;
1971         pRxd->pMBuf     = pMsg;
1972         pRxd->RBControl = BMU_OWN       |
1973                           BMU_STF       |
1974                           BMU_IRQ_EOF   |
1975                           BMU_TCP_CHECK |
1976                           Length;
1977         return;
1978 } /* ReQueueRxBuffer */
1979
1980 /*****************************************************************************
1981  *
1982  *      ReceiveIrq - handle a receive IRQ
1983  *
1984  * Description:
1985  *      This function is called when a receive IRQ is set.
1986  *      It walks the receive descriptor ring and sends up all
1987  *      frames that are complete.
1988  *
1989  * Returns:     N/A
1990  */
1991 static void ReceiveIrq(
1992         SK_AC           *pAC,                   /* pointer to adapter context */
1993         RX_PORT         *pRxPort,               /* pointer to receive port struct */
1994         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
1995 {
1996 RXD                             *pRxd;                  /* pointer to receive descriptors */
1997 SK_U32                  Control;                /* control field of descriptor */
1998 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
1999 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
2000 int                             FrameLength;    /* total length of received frame */
2001 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
2002 SK_EVPARA               EvPara;                 /* an event parameter union */
2003 unsigned long   Flags;                  /* for spin lock */
2004 int                             PortIndex = pRxPort->PortIndex;
2005 unsigned int    Offset;
2006 unsigned int    NumBytes;
2007 unsigned int    ForRlmt;
2008 SK_BOOL                 IsBc;
2009 SK_BOOL                 IsMc;
2010 SK_BOOL  IsBadFrame;                    /* Bad frame */
2011
2012 SK_U32                  FrameStat;
2013 SK_U64                  PhysAddr;
2014
2015 rx_start:
2016         /* do forever; exit if BMU_OWN found */
2017         for ( pRxd = pRxPort->pRxdRingHead ;
2018                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2019                   pRxd = pRxd->pNextRxd,
2020                   pRxPort->pRxdRingHead = pRxd,
2021                   pRxPort->RxdRingFree ++) {
2022
2023                 /*
2024                  * For a better understanding of this loop
2025                  * Go through every descriptor beginning at the head
2026                  * Please note: the ring might be completely received so the OWN bit
2027                  * set is not a good crirteria to leave that loop.
2028                  * Therefore the RingFree counter is used.
2029                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2030                  * to be checked next.
2031                  */
2032
2033                 Control = pRxd->RBControl;
2034
2035                 /* check if this descriptor is ready */
2036                 if ((Control & BMU_OWN) != 0) {
2037                         /* this descriptor is not yet ready */
2038                         /* This is the usual end of the loop */
2039                         /* We don't need to start the ring again */
2040                         FillRxRing(pAC, pRxPort);
2041                         return;
2042                 }
2043                 pAC->DynIrqModInfo.NbrProcessedDescr++;
2044
2045                 /* get length of frame and check it */
2046                 FrameLength = Control & BMU_BBC;
2047                 if (FrameLength > pAC->RxBufSize) {
2048                         goto rx_failed;
2049                 }
2050
2051                 /* check for STF and EOF */
2052                 if ((Control & (BMU_STF | BMU_EOF)) != (BMU_STF | BMU_EOF)) {
2053                         goto rx_failed;
2054                 }
2055
2056                 /* here we have a complete frame in the ring */
2057                 pMsg = pRxd->pMBuf;
2058
2059                 FrameStat = pRxd->FrameStat;
2060
2061                 /* check for frame length mismatch */
2062 #define XMR_FS_LEN_SHIFT        18
2063 #define GMR_FS_LEN_SHIFT        16
2064                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2065                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2066                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2067                                         SK_DBGCAT_DRV_RX_PROGRESS,
2068                                         ("skge: Frame length mismatch (%u/%u).\n",
2069                                         FrameLength,
2070                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2071                                 goto rx_failed;
2072                         }
2073                 }
2074                 else {
2075                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2076                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2077                                         SK_DBGCAT_DRV_RX_PROGRESS,
2078                                         ("skge: Frame length mismatch (%u/%u).\n",
2079                                         FrameLength,
2080                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2081                                 goto rx_failed;
2082                         }
2083                 }
2084
2085                 /* Set Rx Status */
2086                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2087                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2088                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2089                         IsBadFrame = (FrameStat &
2090                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2091                 } else {
2092                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2093                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2094                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2095                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2096                 }
2097
2098                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2099                         ("Received frame of length %d on port %d\n",
2100                         FrameLength, PortIndex));
2101                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2102                         ("Number of free rx descriptors: %d\n",
2103                         pRxPort->RxdRingFree));
2104 /* DumpMsg(pMsg, "Rx"); */
2105
2106                 if ((Control & BMU_STAT_VAL) != BMU_STAT_VAL || (IsBadFrame)) {
2107 #if 0
2108                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2109 #endif
2110                         /* there is a receive error in this frame */
2111                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2112                                 SK_DBGCAT_DRV_RX_PROGRESS,
2113                                 ("skge: Error in received frame, dropped!\n"
2114                                 "Control: %x\nRxStat: %x\n",
2115                                 Control, FrameStat));
2116
2117                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2118                                 pRxd->VDataHigh, pRxd->VDataLow);
2119
2120                         continue;
2121                 }
2122
2123                 /*
2124                  * if short frame then copy data to reduce memory waste
2125                  */
2126                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2127                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2128                         /*
2129                          * Short frame detected and allocation successfull
2130                          */
2131                         /* use new skb and copy data */
2132                         skb_reserve(pNewMsg, 2);
2133                         skb_put(pNewMsg, FrameLength);
2134                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2135                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2136
2137                         pci_dma_sync_single_for_cpu(pAC->PciDev,
2138                                                     (dma_addr_t) PhysAddr,
2139                                                     FrameLength,
2140                                                     PCI_DMA_FROMDEVICE);
2141                         memcpy(pNewMsg->data, pMsg, FrameLength);
2142
2143                         pci_dma_sync_single_for_device(pAC->PciDev,
2144                                                        (dma_addr_t) PhysAddr,
2145                                                        FrameLength,
2146                                                        PCI_DMA_FROMDEVICE);
2147                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2148                                 pRxd->VDataHigh, pRxd->VDataLow);
2149
2150                         pMsg = pNewMsg;
2151
2152                 }
2153                 else {
2154                         /*
2155                          * if large frame, or SKB allocation failed, pass
2156                          * the SKB directly to the networking
2157                          */
2158
2159                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2160                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2161
2162                         /* release the DMA mapping */
2163                         pci_unmap_single(pAC->PciDev,
2164                                          PhysAddr,
2165                                          pAC->RxBufSize - 2,
2166                                          PCI_DMA_FROMDEVICE);
2167
2168                         /* set length in message */
2169                         skb_put(pMsg, FrameLength);
2170                 } /* frame > SK_COPY_TRESHOLD */
2171
2172 #ifdef USE_SK_RX_CHECKSUM
2173                 pMsg->csum = pRxd->TcpSums & 0xffff;
2174                 pMsg->ip_summed = CHECKSUM_HW;
2175 #else
2176                 pMsg->ip_summed = CHECKSUM_NONE;
2177 #endif
2178
2179
2180                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2181                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2182 #if 0
2183                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2184 #endif
2185                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2186                         IsBc, &Offset, &NumBytes);
2187                 if (NumBytes != 0) {
2188 #if 0
2189                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2190 #endif
2191                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2192                                 &pMsg->data[Offset],
2193                                 IsBc, IsMc, &ForRlmt);
2194                 }
2195                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2196                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2197                         /* send up only frames from active port */
2198                         if ((PortIndex == pAC->ActivePort) ||
2199                                 (pAC->RlmtNets == 2)) {
2200                                 /* frame for upper layer */
2201                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2202 #ifdef xDEBUG
2203                                 DumpMsg(pMsg, "Rx");
2204 #endif
2205                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2206                                         FrameLength, pRxPort->PortIndex);
2207
2208                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2209                                 pMsg->protocol = eth_type_trans(pMsg,
2210                                         pAC->dev[pRxPort->PortIndex]);
2211                                 netif_rx(pMsg);
2212                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2213                         }
2214                         else {
2215                                 /* drop frame */
2216                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2217                                         SK_DBGCAT_DRV_RX_PROGRESS,
2218                                         ("D"));
2219                                 DEV_KFREE_SKB(pMsg);
2220                         }
2221
2222                 } /* if not for rlmt */
2223                 else {
2224                         /* packet for rlmt */
2225                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2226                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2227                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2228                                 pAC->IoBase, FrameLength);
2229                         if (pRlmtMbuf != NULL) {
2230                                 pRlmtMbuf->pNext = NULL;
2231                                 pRlmtMbuf->Length = FrameLength;
2232                                 pRlmtMbuf->PortIdx = PortIndex;
2233                                 EvPara.pParaPtr = pRlmtMbuf;
2234                                 memcpy((char*)(pRlmtMbuf->pData),
2235                                            (char*)(pMsg->data),
2236                                            FrameLength);
2237
2238                                 /* SlowPathLock needed? */
2239                                 if (SlowPathLock == SK_TRUE) {
2240                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2241                                         SkEventQueue(pAC, SKGE_RLMT,
2242                                                 SK_RLMT_PACKET_RECEIVED,
2243                                                 EvPara);
2244                                         pAC->CheckQueue = SK_TRUE;
2245                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2246                                 } else {
2247                                         SkEventQueue(pAC, SKGE_RLMT,
2248                                                 SK_RLMT_PACKET_RECEIVED,
2249                                                 EvPara);
2250                                         pAC->CheckQueue = SK_TRUE;
2251                                 }
2252
2253                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2254                                         SK_DBGCAT_DRV_RX_PROGRESS,
2255                                         ("Q"));
2256                         }
2257                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2258                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2259                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2260                                 SK_RLMT_RX_PROTOCOL) {
2261                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2262                                 pMsg->protocol = eth_type_trans(pMsg,
2263                                         pAC->dev[pRxPort->PortIndex]);
2264                                 netif_rx(pMsg);
2265                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2266                         }
2267                         else {
2268                                 DEV_KFREE_SKB(pMsg);
2269                         }
2270
2271                 } /* if packet for rlmt */
2272         } /* for ... scanning the RXD ring */
2273
2274         /* RXD ring is empty -> fill and restart */
2275         FillRxRing(pAC, pRxPort);
2276         /* do not start if called from Close */
2277         if (pAC->BoardLevel > SK_INIT_DATA) {
2278                 ClearAndStartRx(pAC, PortIndex);
2279         }
2280         return;
2281
2282 rx_failed:
2283         /* remove error frame */
2284         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2285                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2286
2287         /* release the DMA mapping */
2288
2289         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2290         PhysAddr |= (SK_U64) pRxd->VDataLow;
2291         pci_unmap_page(pAC->PciDev,
2292                          PhysAddr,
2293                          pAC->RxBufSize - 2,
2294                          PCI_DMA_FROMDEVICE);
2295         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2296         pRxd->pMBuf = NULL;
2297         pRxPort->RxdRingFree++;
2298         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2299         goto rx_start;
2300
2301 } /* ReceiveIrq */
2302
2303
2304 /*****************************************************************************
2305  *
2306  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2307  *
2308  * Description:
2309  *      This function sends a start command and a clear interrupt
2310  *      command for one receive queue to the BMU.
2311  *
2312  * Returns: N/A
2313  *      none
2314  */
2315 static void ClearAndStartRx(
2316 SK_AC   *pAC,           /* pointer to the adapter context */
2317 int     PortIndex)      /* index of the receive port (XMAC) */
2318 {
2319         SK_OUT8(pAC->IoBase,
2320                 RxQueueAddr[PortIndex]+Q_CSR,
2321                 CSR_START | CSR_IRQ_CL_F);
2322 } /* ClearAndStartRx */
2323
2324
2325 /*****************************************************************************
2326  *
2327  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2328  *
2329  * Description:
2330  *      This function sends a clear tx IRQ command for one
2331  *      transmit queue to the BMU.
2332  *
2333  * Returns: N/A
2334  */
2335 static void ClearTxIrq(
2336 SK_AC   *pAC,           /* pointer to the adapter context */
2337 int     PortIndex,      /* index of the transmit port (XMAC) */
2338 int     Prio)           /* priority or normal queue */
2339 {
2340         SK_OUT8(pAC->IoBase,
2341                 TxQueueAddr[PortIndex][Prio]+Q_CSR,
2342                 CSR_IRQ_CL_F);
2343 } /* ClearTxIrq */
2344
2345
2346 /*****************************************************************************
2347  *
2348  *      ClearRxRing - remove all buffers from the receive ring
2349  *
2350  * Description:
2351  *      This function removes all receive buffers from the ring.
2352  *      The receive BMU must be stopped before calling this function.
2353  *
2354  * Returns: N/A
2355  */
2356 static void ClearRxRing(
2357 SK_AC   *pAC,           /* pointer to adapter context */
2358 RX_PORT *pRxPort)       /* pointer to rx port struct */
2359 {
2360 RXD             *pRxd;  /* pointer to the current descriptor */
2361 unsigned long   Flags;
2362 SK_U64          PhysAddr;
2363
2364         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2365                 return;
2366         }
2367         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2368         pRxd = pRxPort->pRxdRingHead;
2369         do {
2370                 if (pRxd->pMBuf != NULL) {
2371
2372                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2373                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2374                         pci_unmap_page(pAC->PciDev,
2375                                          PhysAddr,
2376                                          pAC->RxBufSize - 2,
2377                                          PCI_DMA_FROMDEVICE);
2378                         DEV_KFREE_SKB(pRxd->pMBuf);
2379                         pRxd->pMBuf = NULL;
2380                 }
2381                 pRxd->RBControl &= BMU_OWN;
2382                 pRxd = pRxd->pNextRxd;
2383                 pRxPort->RxdRingFree++;
2384         } while (pRxd != pRxPort->pRxdRingTail);
2385         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
2386         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2387 } /* ClearRxRing */
2388
2389 /*****************************************************************************
2390  *
2391  *      ClearTxRing - remove all buffers from the transmit ring
2392  *
2393  * Description:
2394  *      This function removes all transmit buffers from the ring.
2395  *      The transmit BMU must be stopped before calling this function
2396  *      and transmitting at the upper level must be disabled.
2397  *      The BMU own bit of all descriptors is cleared, the rest is
2398  *      done by calling FreeTxDescriptors.
2399  *
2400  * Returns: N/A
2401  */
2402 static void ClearTxRing(
2403 SK_AC   *pAC,           /* pointer to adapter context */
2404 TX_PORT *pTxPort)       /* pointer to tx prt struct */
2405 {
2406 TXD             *pTxd;          /* pointer to the current descriptor */
2407 int             i;
2408 unsigned long   Flags;
2409
2410         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2411         pTxd = pTxPort->pTxdRingHead;
2412         for (i=0; i<pAC->TxDescrPerRing; i++) {
2413                 pTxd->TBControl &= ~BMU_OWN;
2414                 pTxd = pTxd->pNextTxd;
2415         }
2416         FreeTxDescriptors(pAC, pTxPort);
2417         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2418 } /* ClearTxRing */
2419
2420 /*****************************************************************************
2421  *
2422  *      SkGeSetMacAddr - Set the hardware MAC address
2423  *
2424  * Description:
2425  *      This function sets the MAC address used by the adapter.
2426  *
2427  * Returns:
2428  *      0, if everything is ok
2429  *      !=0, on error
2430  */
2431 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
2432 {
2433
2434 DEV_NET *pNet = netdev_priv(dev);
2435 SK_AC   *pAC = pNet->pAC;
2436
2437 struct sockaddr *addr = p;
2438 unsigned long   Flags;
2439
2440         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2441                 ("SkGeSetMacAddr starts now...\n"));
2442         if(netif_running(dev))
2443                 return -EBUSY;
2444
2445         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
2446
2447         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2448
2449         if (pAC->RlmtNets == 2)
2450                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
2451                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2452         else
2453                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
2454                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2455
2456
2457
2458         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2459         return 0;
2460 } /* SkGeSetMacAddr */
2461
2462
2463 /*****************************************************************************
2464  *
2465  *      SkGeSetRxMode - set receive mode
2466  *
2467  * Description:
2468  *      This function sets the receive mode of an adapter. The adapter
2469  *      supports promiscuous mode, allmulticast mode and a number of
2470  *      multicast addresses. If more multicast addresses the available
2471  *      are selected, a hash function in the hardware is used.
2472  *
2473  * Returns:
2474  *      0, if everything is ok
2475  *      !=0, on error
2476  */
2477 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
2478 {
2479
2480 DEV_NET         *pNet;
2481 SK_AC           *pAC;
2482
2483 struct dev_mc_list      *pMcList;
2484 int                     i;
2485 int                     PortIdx;
2486 unsigned long           Flags;
2487
2488         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2489                 ("SkGeSetRxMode starts now... "));
2490
2491         pNet = netdev_priv(dev);
2492         pAC = pNet->pAC;
2493         if (pAC->RlmtNets == 1)
2494                 PortIdx = pAC->ActivePort;
2495         else
2496                 PortIdx = pNet->NetNr;
2497
2498         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2499         if (dev->flags & IFF_PROMISC) {
2500                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2501                         ("PROMISCUOUS mode\n"));
2502                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2503                         SK_PROM_MODE_LLC);
2504         } else if (dev->flags & IFF_ALLMULTI) {
2505                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2506                         ("ALLMULTI mode\n"));
2507                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2508                         SK_PROM_MODE_ALL_MC);
2509         } else {
2510                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
2511                         SK_PROM_MODE_NONE);
2512                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
2513
2514                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2515                         ("Number of MC entries: %d ", dev->mc_count));
2516
2517                 pMcList = dev->mc_list;
2518                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
2519                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
2520                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
2521                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
2522                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
2523                                 pMcList->dmi_addr[0],
2524                                 pMcList->dmi_addr[1],
2525                                 pMcList->dmi_addr[2],
2526                                 pMcList->dmi_addr[3],
2527                                 pMcList->dmi_addr[4],
2528                                 pMcList->dmi_addr[5]));
2529                 }
2530                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
2531         }
2532         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2533
2534         return;
2535 } /* SkGeSetRxMode */
2536
2537
2538 /*****************************************************************************
2539  *
2540  *      SkGeChangeMtu - set the MTU to another value
2541  *
2542  * Description:
2543  *      This function sets is called whenever the MTU size is changed
2544  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
2545  *      ethernet MTU size, long frame support is activated.
2546  *
2547  * Returns:
2548  *      0, if everything is ok
2549  *      !=0, on error
2550  */
2551 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
2552 {
2553 DEV_NET         *pNet;
2554 DEV_NET         *pOtherNet;
2555 SK_AC           *pAC;
2556 unsigned long   Flags;
2557 int             i;
2558 SK_EVPARA       EvPara;
2559
2560         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2561                 ("SkGeChangeMtu starts now...\n"));
2562
2563         pNet = netdev_priv(dev);
2564         pAC  = pNet->pAC;
2565
2566         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
2567                 return -EINVAL;
2568         }
2569
2570         if(pAC->BoardLevel != SK_INIT_RUN) {
2571                 return -EINVAL;
2572         }
2573
2574 #ifdef SK_DIAG_SUPPORT
2575         if (pAC->DiagModeActive == DIAG_ACTIVE) {
2576                 if (pAC->DiagFlowCtrl == SK_FALSE) {
2577                         return -1; /* still in use, deny any actions of MTU */
2578                 } else {
2579                         pAC->DiagFlowCtrl = SK_FALSE;
2580                 }
2581         }
2582 #endif
2583
2584         pNet->Mtu = NewMtu;
2585         pOtherNet = netdev_priv(pAC->dev[1 - pNet->NetNr]);
2586         if ((pOtherNet->Mtu>1500) && (NewMtu<=1500) && (pOtherNet->Up==1)) {
2587                 return(0);
2588         }
2589
2590         pAC->RxBufSize = NewMtu + 32;
2591         dev->mtu = NewMtu;
2592
2593         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2594                 ("New MTU: %d\n", NewMtu));
2595
2596         /*
2597         ** Prevent any reconfiguration while changing the MTU
2598         ** by disabling any interrupts
2599         */
2600         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
2601         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2602
2603         /*
2604         ** Notify RLMT that any ports are to be stopped
2605         */
2606         EvPara.Para32[0] =  0;
2607         EvPara.Para32[1] = -1;
2608         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2609                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2610                 EvPara.Para32[0] =  1;
2611                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2612         } else {
2613                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2614         }
2615
2616         /*
2617         ** After calling the SkEventDispatcher(), RLMT is aware about
2618         ** the stopped ports -> configuration can take place!
2619         */
2620         SkEventDispatcher(pAC, pAC->IoBase);
2621
2622         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2623                 spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2624                 netif_stop_queue(pAC->dev[i]);
2625
2626         }
2627
2628         /*
2629         ** Depending on the desired MTU size change, a different number of
2630         ** RX buffers need to be allocated
2631         */
2632         if (NewMtu > 1500) {
2633             /*
2634             ** Use less rx buffers
2635             */
2636             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2637                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2638                     pAC->RxPort[i].RxFillLimit =  pAC->RxDescrPerRing -
2639                                                  (pAC->RxDescrPerRing / 4);
2640                 } else {
2641                     if (i == pAC->ActivePort) {
2642                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2643                                                     (pAC->RxDescrPerRing / 4);
2644                     } else {
2645                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2646                                                     (pAC->RxDescrPerRing / 10);
2647                     }
2648                 }
2649             }
2650         } else {
2651             /*
2652             ** Use the normal amount of rx buffers
2653             */
2654             for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2655                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2656                     pAC->RxPort[i].RxFillLimit = 1;
2657                 } else {
2658                     if (i == pAC->ActivePort) {
2659                         pAC->RxPort[i].RxFillLimit = 1;
2660                     } else {
2661                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing -
2662                                                     (pAC->RxDescrPerRing / 4);
2663                     }
2664                 }
2665             }
2666         }
2667
2668         SkGeDeInit(pAC, pAC->IoBase);
2669
2670         /*
2671         ** enable/disable hardware support for long frames
2672         */
2673         if (NewMtu > 1500) {
2674 // pAC->JumboActivated = SK_TRUE; /* is never set back !!! */
2675                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
2676         } else {
2677             if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2678                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
2679             } else {
2680                 pAC->GIni.GIPortUsage = SK_RED_LINK;
2681             }
2682         }
2683
2684         SkGeInit(   pAC, pAC->IoBase, SK_INIT_IO);
2685         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_IO);
2686         SkEventInit(pAC, pAC->IoBase, SK_INIT_IO);
2687         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_IO);
2688         SkAddrInit( pAC, pAC->IoBase, SK_INIT_IO);
2689         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_IO);
2690         SkTimerInit(pAC, pAC->IoBase, SK_INIT_IO);
2691
2692         /*
2693         ** tschilling:
2694         ** Speed and others are set back to default in level 1 init!
2695         */
2696         GetConfiguration(pAC);
2697
2698         SkGeInit(   pAC, pAC->IoBase, SK_INIT_RUN);
2699         SkI2cInit(  pAC, pAC->IoBase, SK_INIT_RUN);
2700         SkEventInit(pAC, pAC->IoBase, SK_INIT_RUN);
2701         SkPnmiInit( pAC, pAC->IoBase, SK_INIT_RUN);
2702         SkAddrInit( pAC, pAC->IoBase, SK_INIT_RUN);
2703         SkRlmtInit( pAC, pAC->IoBase, SK_INIT_RUN);
2704         SkTimerInit(pAC, pAC->IoBase, SK_INIT_RUN);
2705
2706         /*
2707         ** clear and reinit the rx rings here
2708         */
2709         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2710                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
2711                 ClearRxRing(pAC, &pAC->RxPort[i]);
2712                 FillRxRing(pAC, &pAC->RxPort[i]);
2713
2714                 /*
2715                 ** Enable transmit descriptor polling
2716                 */
2717                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
2718                 FillRxRing(pAC, &pAC->RxPort[i]);
2719         };
2720
2721         SkGeYellowLED(pAC, pAC->IoBase, 1);
2722         SkDimEnableModerationIfNeeded(pAC);
2723         SkDimDisplayModerationSettings(pAC);
2724
2725         netif_start_queue(pAC->dev[pNet->PortNr]);
2726         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
2727                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2728         }
2729
2730         /*
2731         ** Enable Interrupts again
2732         */
2733         SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask);
2734         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
2735
2736         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2737         SkEventDispatcher(pAC, pAC->IoBase);
2738
2739         /*
2740         ** Notify RLMT about the changing and restarting one (or more) ports
2741         */
2742         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
2743                 EvPara.Para32[0] = pAC->RlmtNets;
2744                 EvPara.Para32[1] = -1;
2745                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, EvPara);
2746                 EvPara.Para32[0] = pNet->PortNr;
2747                 EvPara.Para32[1] = -1;
2748                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2749
2750                 if (pOtherNet->Up) {
2751                         EvPara.Para32[0] = pOtherNet->PortNr;
2752                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2753                 }
2754         } else {
2755                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2756         }
2757
2758         SkEventDispatcher(pAC, pAC->IoBase);
2759         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2760
2761         /*
2762         ** While testing this driver with latest kernel 2.5 (2.5.70), it
2763         ** seems as if upper layers have a problem to handle a successful
2764         ** return value of '0'. If such a zero is returned, the complete
2765         ** system hangs for several minutes (!), which is in acceptable.
2766         **
2767         ** Currently it is not clear, what the exact reason for this problem
2768         ** is. The implemented workaround for 2.5 is to return the desired
2769         ** new MTU size if all needed changes for the new MTU size where
2770         ** performed. In kernels 2.2 and 2.4, a zero value is returned,
2771         ** which indicates the successful change of the mtu-size.
2772         */
2773         return NewMtu;
2774
2775 } /* SkGeChangeMtu */
2776
2777
2778 /*****************************************************************************
2779  *
2780  *      SkGeStats - return ethernet device statistics
2781  *
2782  * Description:
2783  *      This function return statistic data about the ethernet device
2784  *      to the operating system.
2785  *
2786  * Returns:
2787  *      pointer to the statistic structure.
2788  */
2789 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
2790 {
2791 DEV_NET *pNet = netdev_priv(dev);
2792 SK_AC   *pAC = pNet->pAC;
2793 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
2794 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
2795 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
2796 unsigned int    Size;                   /* size of pnmi struct */
2797 unsigned long   Flags;                  /* for spin lock */
2798
2799         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2800                 ("SkGeStats starts now...\n"));
2801         pPnmiStruct = &pAC->PnmiStruct;
2802
2803 #ifdef SK_DIAG_SUPPORT
2804         if ((pAC->DiagModeActive == DIAG_NOTACTIVE) &&
2805                 (pAC->BoardLevel == SK_INIT_RUN)) {
2806 #endif
2807         SK_MEMSET(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
2808         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2809         Size = SK_PNMI_STRUCT_SIZE;
2810                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
2811         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2812 #ifdef SK_DIAG_SUPPORT
2813         }
2814 #endif
2815
2816         pPnmiStat = &pPnmiStruct->Stat[0];
2817         pPnmiConf = &pPnmiStruct->Conf[0];
2818
2819         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
2820         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
2821         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
2822         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
2823
2824         if (pNet->Mtu <= 1500) {
2825                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
2826         } else {
2827                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
2828                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
2829         }
2830
2831
2832         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
2833                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
2834
2835         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2836         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
2837         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
2838         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
2839         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2840
2841         /* detailed rx_errors: */
2842         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
2843         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2844         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
2845         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
2846         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2847         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
2848
2849         /* detailed tx_errors */
2850         pAC->stats.tx_aborted_errors = (SK_U32) 0;
2851         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2852         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
2853         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2854         pAC->stats.tx_window_errors = (SK_U32) 0;
2855
2856         return(&pAC->stats);
2857 } /* SkGeStats */
2858
2859
2860 /*****************************************************************************
2861  *
2862  *      SkGeIoctl - IO-control function
2863  *
2864  * Description:
2865  *      This function is called if an ioctl is issued on the device.
2866  *      There are three subfunction for reading, writing and test-writing
2867  *      the private MIB data structure (usefull for SysKonnect-internal tools).
2868  *
2869  * Returns:
2870  *      0, if everything is ok
2871  *      !=0, on error
2872  */
2873 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
2874 {
2875 DEV_NET         *pNet;
2876 SK_AC           *pAC;
2877 void            *pMemBuf;
2878 struct pci_dev  *pdev = NULL;
2879 SK_GE_IOCTL     Ioctl;
2880 unsigned int    Err = 0;
2881 int             Size = 0;
2882 int             Ret = 0;
2883 unsigned int    Length = 0;
2884 int             HeaderLength = sizeof(SK_U32) + sizeof(SK_U32);
2885
2886         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2887                 ("SkGeIoctl starts now...\n"));
2888
2889         pNet = netdev_priv(dev);
2890         pAC = pNet->pAC;
2891
2892         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
2893                 return -EFAULT;
2894         }
2895
2896         switch(cmd) {
2897         case SK_IOCTL_SETMIB:
2898         case SK_IOCTL_PRESETMIB:
2899                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2900         case SK_IOCTL_GETMIB:
2901                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
2902                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
2903                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
2904                         return -EFAULT;
2905                 }
2906                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
2907                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
2908                         Ioctl.Len<Size? Ioctl.Len : Size)) {
2909                         return -EFAULT;
2910                 }
2911                 Ioctl.Len = Size;
2912                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2913                         return -EFAULT;
2914                 }
2915                 break;
2916         case SK_IOCTL_GEN:
2917                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2918                         Length = Ioctl.Len;
2919                 } else {
2920                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2921                 }
2922                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2923                         return -ENOMEM;
2924                 }
2925                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2926                         Err = -EFAULT;
2927                         goto fault_gen;
2928                 }
2929                 if ((Ret = SkPnmiGenIoctl(pAC, pAC->IoBase, pMemBuf, &Length, 0)) < 0) {
2930                         Err = -EFAULT;
2931                         goto fault_gen;
2932                 }
2933                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2934                         Err = -EFAULT;
2935                         goto fault_gen;
2936                 }
2937                 Ioctl.Len = Length;
2938                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2939                         Err = -EFAULT;
2940                         goto fault_gen;
2941                 }
2942 fault_gen:
2943                 kfree(pMemBuf); /* cleanup everything */
2944                 break;
2945 #ifdef SK_DIAG_SUPPORT
2946        case SK_IOCTL_DIAG:
2947                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2948                 if (Ioctl.Len < (sizeof(pAC->PnmiStruct) + HeaderLength)) {
2949                         Length = Ioctl.Len;
2950                 } else {
2951                         Length = sizeof(pAC->PnmiStruct) + HeaderLength;
2952                 }
2953                 if (NULL == (pMemBuf = kmalloc(Length, GFP_KERNEL))) {
2954                         return -ENOMEM;
2955                 }
2956                 if(copy_from_user(pMemBuf, Ioctl.pData, Length)) {
2957                         Err = -EFAULT;
2958                         goto fault_diag;
2959                 }
2960                 pdev = pAC->PciDev;
2961                 Length = 3 * sizeof(SK_U32);  /* Error, Bus and Device */
2962                 /*
2963                 ** While coding this new IOCTL interface, only a few lines of code
2964                 ** are to to be added. Therefore no dedicated function has been
2965                 ** added. If more functionality is added, a separate function
2966                 ** should be used...
2967                 */
2968                 * ((SK_U32 *)pMemBuf) = 0;
2969                 * ((SK_U32 *)pMemBuf + 1) = pdev->bus->number;
2970                 * ((SK_U32 *)pMemBuf + 2) = ParseDeviceNbrFromSlotName(pci_name(pdev));
2971                 if(copy_to_user(Ioctl.pData, pMemBuf, Length) ) {
2972                         Err = -EFAULT;
2973                         goto fault_diag;
2974                 }
2975                 Ioctl.Len = Length;
2976                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2977                         Err = -EFAULT;
2978                         goto fault_diag;
2979                 }
2980 fault_diag:
2981                 kfree(pMemBuf); /* cleanup everything */
2982                 break;
2983 #endif
2984         default:
2985                 Err = -EOPNOTSUPP;
2986         }
2987
2988         return(Err);
2989
2990 } /* SkGeIoctl */
2991
2992
2993 /*****************************************************************************
2994  *
2995  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
2996  *
2997  * Description:
2998  *      This function reads/writes the MIB data using PNMI (Private Network
2999  *      Management Interface).
3000  *      The destination for the data must be provided with the
3001  *      ioctl call and is given to the driver in the form of
3002  *      a user space address.
3003  *      Copying from the user-provided data area into kernel messages
3004  *      and back is done by copy_from_user and copy_to_user calls in
3005  *      SkGeIoctl.
3006  *
3007  * Returns:
3008  *      returned size from PNMI call
3009  */
3010 static int SkGeIocMib(
3011 DEV_NET         *pNet,  /* pointer to the adapter context */
3012 unsigned int    Size,   /* length of ioctl data */
3013 int             mode)   /* flag for set/preset */
3014 {
3015 unsigned long   Flags;  /* for spin lock */
3016 SK_AC           *pAC;
3017
3018         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3019                 ("SkGeIocMib starts now...\n"));
3020         pAC = pNet->pAC;
3021         /* access MIB */
3022         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3023         switch(mode) {
3024         case SK_IOCTL_GETMIB:
3025                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3026                         pNet->NetNr);
3027                 break;
3028         case SK_IOCTL_PRESETMIB:
3029                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3030                         pNet->NetNr);
3031                 break;
3032         case SK_IOCTL_SETMIB:
3033                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3034                         pNet->NetNr);
3035                 break;
3036         default:
3037                 break;
3038         }
3039         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3040         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3041                 ("MIB data access succeeded\n"));
3042         return (Size);
3043 } /* SkGeIocMib */
3044
3045
3046 /*****************************************************************************
3047  *
3048  *      GetConfiguration - read configuration information
3049  *
3050  * Description:
3051  *      This function reads per-adapter configuration information from
3052  *      the options provided on the command line.
3053  *
3054  * Returns:
3055  *      none
3056  */
3057 static void GetConfiguration(
3058 SK_AC   *pAC)   /* pointer to the adapter context structure */
3059 {
3060 SK_I32  Port;           /* preferred port */
3061 SK_BOOL AutoSet;
3062 SK_BOOL DupSet;
3063 int     LinkSpeed          = SK_LSPEED_AUTO;    /* Link speed */
3064 int     AutoNeg            = 1;                 /* autoneg off (0) or on (1) */
3065 int     DuplexCap          = 0;                 /* 0=both,1=full,2=half */
3066 int     FlowCtrl           = SK_FLOW_MODE_SYM_OR_REM;   /* FlowControl  */
3067 int     MSMode             = SK_MS_MODE_AUTO;   /* master/slave mode    */
3068
3069 SK_BOOL IsConTypeDefined   = SK_TRUE;
3070 SK_BOOL IsLinkSpeedDefined = SK_TRUE;
3071 SK_BOOL IsFlowCtrlDefined  = SK_TRUE;
3072 SK_BOOL IsRoleDefined      = SK_TRUE;
3073 SK_BOOL IsModeDefined      = SK_TRUE;
3074 /*
3075  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3076  *      parameter. The mapping is described by this table:
3077  *      DuplexCap ->    |       both    |       full    |       half    |
3078  *      AutoNeg         |               |               |               |
3079  *      -----------------------------------------------------------------
3080  *      Off             |    illegal    |       Full    |       Half    |
3081  *      -----------------------------------------------------------------
3082  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3083  *      -----------------------------------------------------------------
3084  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3085  */
3086 int     Capabilities[3][3] =
3087                 { {                -1, SK_LMODE_FULL     , SK_LMODE_HALF     },
3088                   {SK_LMODE_AUTOBOTH , SK_LMODE_AUTOFULL , SK_LMODE_AUTOHALF },
3089                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3090
3091 #define DC_BOTH 0
3092 #define DC_FULL 1
3093 #define DC_HALF 2
3094 #define AN_OFF  0
3095 #define AN_ON   1
3096 #define AN_SENS 2
3097 #define M_CurrPort pAC->GIni.GP[Port]
3098
3099
3100         /*
3101         ** Set the default values first for both ports!
3102         */
3103         for (Port = 0; Port < SK_MAX_MACS; Port++) {
3104                 M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3105                 M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3106                 M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3107                 M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3108         }
3109
3110         /*
3111         ** Check merged parameter ConType. If it has not been used,
3112         ** verify any other parameter (e.g. AutoNeg) and use default values.
3113         **
3114         ** Stating both ConType and other lowlevel link parameters is also
3115         ** possible. If this is the case, the passed ConType-parameter is
3116         ** overwritten by the lowlevel link parameter.
3117         **
3118         ** The following settings are used for a merged ConType-parameter:
3119         **
3120         ** ConType   DupCap   AutoNeg   FlowCtrl      Role      Speed
3121         ** -------   ------   -------   --------   ----------   -----
3122         **  Auto      Both      On      SymOrRem      Auto       Auto
3123         **  100FD     Full      Off       None      <ignored>    100
3124         **  100HD     Half      Off       None      <ignored>    100
3125         **  10FD      Full      Off       None      <ignored>    10
3126         **  10HD      Half      Off       None      <ignored>    10
3127         **
3128         ** This ConType parameter is used for all ports of the adapter!
3129         */
3130         if ( (ConType != NULL)                &&
3131              (pAC->Index < SK_MAX_CARD_PARAM) &&
3132              (ConType[pAC->Index] != NULL) ) {
3133
3134                         /* Check chipset family */
3135                         if ((!pAC->ChipsetType) &&
3136                                 (strcmp(ConType[pAC->Index],"Auto")!=0) &&
3137                                 (strcmp(ConType[pAC->Index],"")!=0)) {
3138                                 /* Set the speed parameter back */
3139                                         printk("sk98lin: Illegal value \"%s\" "
3140                                                         "for ConType."
3141                                                         " Using Auto.\n",
3142                                                         ConType[pAC->Index]);
3143
3144                                         sprintf(ConType[pAC->Index], "Auto");
3145                         }
3146
3147                                 if (strcmp(ConType[pAC->Index],"")==0) {
3148                         IsConTypeDefined = SK_FALSE; /* No ConType defined */
3149                                 } else if (strcmp(ConType[pAC->Index],"Auto")==0) {
3150                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3151                         M_CurrPort.PLinkModeConf = Capabilities[AN_ON][DC_BOTH];
3152                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3153                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3154                         M_CurrPort.PLinkSpeed    = SK_LSPEED_AUTO;
3155                     }
3156                 } else if (strcmp(ConType[pAC->Index],"100FD")==0) {
3157                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3158                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3159                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3160                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3161                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3162                     }
3163                 } else if (strcmp(ConType[pAC->Index],"100HD")==0) {
3164                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3165                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3166                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3167                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3168                         M_CurrPort.PLinkSpeed    = SK_LSPEED_100MBPS;
3169                     }
3170                 } else if (strcmp(ConType[pAC->Index],"10FD")==0) {
3171                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3172                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_FULL];
3173                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3174                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3175                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3176                     }
3177                 } else if (strcmp(ConType[pAC->Index],"10HD")==0) {
3178                     for (Port = 0; Port < SK_MAX_MACS; Port++) {
3179                         M_CurrPort.PLinkModeConf = Capabilities[AN_OFF][DC_HALF];
3180                         M_CurrPort.PFlowCtrlMode = SK_FLOW_MODE_NONE;
3181                         M_CurrPort.PMSMode       = SK_MS_MODE_AUTO;
3182                         M_CurrPort.PLinkSpeed    = SK_LSPEED_10MBPS;
3183                     }
3184                 } else {
3185                     printk("sk98lin: Illegal value \"%s\" for ConType\n",
3186                         ConType[pAC->Index]);
3187                     IsConTypeDefined = SK_FALSE; /* Wrong ConType defined */
3188                 }
3189         } else {
3190             IsConTypeDefined = SK_FALSE; /* No ConType defined */
3191         }
3192
3193         /*
3194         ** Parse any parameter settings for port A:
3195         ** a) any LinkSpeed stated?
3196         */
3197         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3198                 Speed_A[pAC->Index] != NULL) {
3199                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3200                     IsLinkSpeedDefined = SK_FALSE;
3201                 } else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3202                     LinkSpeed = SK_LSPEED_AUTO;
3203                 } else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3204                     LinkSpeed = SK_LSPEED_10MBPS;
3205                 } else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3206                     LinkSpeed = SK_LSPEED_100MBPS;
3207                 } else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3208                     LinkSpeed = SK_LSPEED_1000MBPS;
3209                 } else {
3210                     printk("sk98lin: Illegal value \"%s\" for Speed_A\n",
3211                         Speed_A[pAC->Index]);
3212                     IsLinkSpeedDefined = SK_FALSE;
3213                 }
3214         } else {
3215             IsLinkSpeedDefined = SK_FALSE;
3216         }
3217
3218         /*
3219         ** Check speed parameter:
3220         **    Only copper type adapter and GE V2 cards
3221         */
3222         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3223                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3224                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3225                 printk("sk98lin: Illegal value for Speed_A. "
3226                         "Not a copper card or GE V2 card\n    Using "
3227                         "speed 1000\n");
3228                 LinkSpeed = SK_LSPEED_1000MBPS;
3229         }
3230
3231         /*
3232         ** Decide whether to set new config value if somethig valid has
3233         ** been received.
3234         */
3235         if (IsLinkSpeedDefined) {
3236                 pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3237         }
3238
3239         /*
3240         ** b) Any Autonegotiation and DuplexCapabilities set?
3241         **    Please note that both belong together...
3242         */
3243         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3244         AutoSet = SK_FALSE;
3245         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3246                 AutoNeg_A[pAC->Index] != NULL) {
3247                 AutoSet = SK_TRUE;
3248                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3249                     AutoSet = SK_FALSE;
3250                 } else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3251                     AutoNeg = AN_ON;
3252                 } else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3253                     AutoNeg = AN_OFF;
3254                 } else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3255                     AutoNeg = AN_SENS;
3256                 } else {
3257                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_A\n",
3258                         AutoNeg_A[pAC->Index]);
3259                 }
3260         }
3261
3262         DuplexCap = DC_BOTH;
3263         DupSet    = SK_FALSE;
3264         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3265                 DupCap_A[pAC->Index] != NULL) {
3266                 DupSet = SK_TRUE;
3267                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3268                     DupSet = SK_FALSE;
3269                 } else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3270                     DuplexCap = DC_BOTH;
3271                 } else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3272                     DuplexCap = DC_FULL;
3273                 } else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3274                     DuplexCap = DC_HALF;
3275                 } else {
3276                     printk("sk98lin: Illegal value \"%s\" for DupCap_A\n",
3277                         DupCap_A[pAC->Index]);
3278                 }
3279         }
3280
3281         /*
3282         ** Check for illegal combinations
3283         */
3284         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3285                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3286                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3287                 (pAC->ChipsetType)) {
3288                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3289                                         "    Using Full Duplex.\n");
3290                                 DuplexCap = DC_FULL;
3291         }
3292
3293         if ( AutoSet && AutoNeg==AN_SENS && DupSet) {
3294                 printk("sk98lin, Port A: DuplexCapabilities"
3295                         " ignored using Sense mode\n");
3296         }
3297
3298         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3299                 printk("sk98lin: Port A: Illegal combination"
3300                         " of values AutoNeg. and DuplexCap.\n    Using "
3301                         "Full Duplex\n");
3302                 DuplexCap = DC_FULL;
3303         }
3304
3305         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3306                 DuplexCap = DC_FULL;
3307         }
3308
3309         if (!AutoSet && DupSet) {
3310                 printk("sk98lin: Port A: Duplex setting not"
3311                         " possible in\n    default AutoNegotiation mode"
3312                         " (Sense).\n    Using AutoNegotiation On\n");
3313                 AutoNeg = AN_ON;
3314         }
3315
3316         /*
3317         ** set the desired mode
3318         */
3319         if (AutoSet || DupSet) {
3320             pAC->GIni.GP[0].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3321         }
3322
3323         /*
3324         ** c) Any Flowcontrol-parameter set?
3325         */
3326         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3327                 FlowCtrl_A[pAC->Index] != NULL) {
3328                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3329                     IsFlowCtrlDefined = SK_FALSE;
3330                 } else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3331                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3332                 } else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3333                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3334                 } else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3335                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3336                 } else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3337                     FlowCtrl = SK_FLOW_MODE_NONE;
3338                 } else {
3339                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_A\n",
3340                         FlowCtrl_A[pAC->Index]);
3341                     IsFlowCtrlDefined = SK_FALSE;
3342                 }
3343         } else {
3344            IsFlowCtrlDefined = SK_FALSE;
3345         }
3346
3347         if (IsFlowCtrlDefined) {
3348             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3349                 printk("sk98lin: Port A: FlowControl"
3350                         " impossible without AutoNegotiation,"
3351                         " disabled\n");
3352                 FlowCtrl = SK_FLOW_MODE_NONE;
3353             }
3354             pAC->GIni.GP[0].PFlowCtrlMode = FlowCtrl;
3355         }
3356
3357         /*
3358         ** d) What is with the RoleParameter?
3359         */
3360         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3361                 Role_A[pAC->Index] != NULL) {
3362                 if (strcmp(Role_A[pAC->Index],"")==0) {
3363                    IsRoleDefined = SK_FALSE;
3364                 } else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3365                     MSMode = SK_MS_MODE_AUTO;
3366                 } else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3367                     MSMode = SK_MS_MODE_MASTER;
3368                 } else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3369                     MSMode = SK_MS_MODE_SLAVE;
3370                 } else {
3371                     printk("sk98lin: Illegal value \"%s\" for Role_A\n",
3372                         Role_A[pAC->Index]);
3373                     IsRoleDefined = SK_FALSE;
3374                 }
3375         } else {
3376            IsRoleDefined = SK_FALSE;
3377         }
3378
3379         if (IsRoleDefined == SK_TRUE) {
3380             pAC->GIni.GP[0].PMSMode = MSMode;
3381         }
3382
3383
3384
3385         /*
3386         ** Parse any parameter settings for port B:
3387         ** a) any LinkSpeed stated?
3388         */
3389         IsConTypeDefined   = SK_TRUE;
3390         IsLinkSpeedDefined = SK_TRUE;
3391         IsFlowCtrlDefined  = SK_TRUE;
3392         IsModeDefined      = SK_TRUE;
3393
3394         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3395                 Speed_B[pAC->Index] != NULL) {
3396                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3397                     IsLinkSpeedDefined = SK_FALSE;
3398                 } else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3399                     LinkSpeed = SK_LSPEED_AUTO;
3400                 } else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3401                     LinkSpeed = SK_LSPEED_10MBPS;
3402                 } else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3403                     LinkSpeed = SK_LSPEED_100MBPS;
3404                 } else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3405                     LinkSpeed = SK_LSPEED_1000MBPS;
3406                 } else {
3407                     printk("sk98lin: Illegal value \"%s\" for Speed_B\n",
3408                         Speed_B[pAC->Index]);
3409                     IsLinkSpeedDefined = SK_FALSE;
3410                 }
3411         } else {
3412             IsLinkSpeedDefined = SK_FALSE;
3413         }
3414
3415         /*
3416         ** Check speed parameter:
3417         **    Only copper type adapter and GE V2 cards
3418         */
3419         if (((!pAC->ChipsetType) || (pAC->GIni.GICopperType != SK_TRUE)) &&
3420                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3421                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3422                 printk("sk98lin: Illegal value for Speed_B. "
3423                         "Not a copper card or GE V2 card\n    Using "
3424                         "speed 1000\n");
3425                 LinkSpeed = SK_LSPEED_1000MBPS;
3426         }
3427
3428         /*
3429         ** Decide whether to set new config value if somethig valid has
3430         ** been received.
3431         */
3432         if (IsLinkSpeedDefined) {
3433             pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3434         }
3435
3436         /*
3437         ** b) Any Autonegotiation and DuplexCapabilities set?
3438         **    Please note that both belong together...
3439         */
3440         AutoNeg = AN_SENS; /* default: do auto Sense */
3441         AutoSet = SK_FALSE;
3442         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3443                 AutoNeg_B[pAC->Index] != NULL) {
3444                 AutoSet = SK_TRUE;
3445                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3446                     AutoSet = SK_FALSE;
3447                 } else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3448                     AutoNeg = AN_ON;
3449                 } else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3450                     AutoNeg = AN_OFF;
3451                 } else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3452                     AutoNeg = AN_SENS;
3453                 } else {
3454                     printk("sk98lin: Illegal value \"%s\" for AutoNeg_B\n",
3455                         AutoNeg_B[pAC->Index]);
3456                 }
3457         }
3458
3459         DuplexCap = DC_BOTH;
3460         DupSet    = SK_FALSE;
3461         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3462                 DupCap_B[pAC->Index] != NULL) {
3463                 DupSet = SK_TRUE;
3464                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3465                     DupSet = SK_FALSE;
3466                 } else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3467                     DuplexCap = DC_BOTH;
3468                 } else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3469                     DuplexCap = DC_FULL;
3470                 } else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3471                     DuplexCap = DC_HALF;
3472                 } else {
3473                     printk("sk98lin: Illegal value \"%s\" for DupCap_B\n",
3474                         DupCap_B[pAC->Index]);
3475                 }
3476         }
3477
3478
3479         /*
3480         ** Check for illegal combinations
3481         */
3482         if ((LinkSpeed == SK_LSPEED_1000MBPS) &&
3483                 ((DuplexCap == SK_LMODE_STAT_AUTOHALF) ||
3484                 (DuplexCap == SK_LMODE_STAT_HALF)) &&
3485                 (pAC->ChipsetType)) {
3486                     printk("sk98lin: Half Duplex not possible with Gigabit speed!\n"
3487                                         "    Using Full Duplex.\n");
3488                                 DuplexCap = DC_FULL;
3489         }
3490
3491         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3492                 printk("sk98lin, Port B: DuplexCapabilities"
3493                         " ignored using Sense mode\n");
3494         }
3495
3496         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3497                 printk("sk98lin: Port B: Illegal combination"
3498                         " of values AutoNeg. and DuplexCap.\n    Using "
3499                         "Full Duplex\n");
3500                 DuplexCap = DC_FULL;
3501         }
3502
3503         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3504                 DuplexCap = DC_FULL;
3505         }
3506
3507         if (!AutoSet && DupSet) {
3508                 printk("sk98lin: Port B: Duplex setting not"
3509                         " possible in\n    default AutoNegotiation mode"
3510                         " (Sense).\n    Using AutoNegotiation On\n");
3511                 AutoNeg = AN_ON;
3512         }
3513
3514         /*
3515         ** set the desired mode
3516         */
3517         if (AutoSet || DupSet) {
3518             pAC->GIni.GP[1].PLinkModeConf = Capabilities[AutoNeg][DuplexCap];
3519         }
3520
3521         /*
3522         ** c) Any FlowCtrl parameter set?
3523         */
3524         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3525                 FlowCtrl_B[pAC->Index] != NULL) {
3526                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3527                     IsFlowCtrlDefined = SK_FALSE;
3528                 } else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3529                     FlowCtrl = SK_FLOW_MODE_SYM_OR_REM;
3530                 } else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3531                     FlowCtrl = SK_FLOW_MODE_SYMMETRIC;
3532                 } else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
3533                     FlowCtrl = SK_FLOW_MODE_LOC_SEND;
3534                 } else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
3535                     FlowCtrl = SK_FLOW_MODE_NONE;
3536                 } else {
3537                     printk("sk98lin: Illegal value \"%s\" for FlowCtrl_B\n",
3538                         FlowCtrl_B[pAC->Index]);
3539                     IsFlowCtrlDefined = SK_FALSE;
3540                 }
3541         } else {
3542                 IsFlowCtrlDefined = SK_FALSE;
3543         }
3544
3545         if (IsFlowCtrlDefined) {
3546             if ((AutoNeg == AN_OFF) && (FlowCtrl != SK_FLOW_MODE_NONE)) {
3547                 printk("sk98lin: Port B: FlowControl"
3548                         " impossible without AutoNegotiation,"
3549                         " disabled\n");
3550                 FlowCtrl = SK_FLOW_MODE_NONE;
3551             }
3552             pAC->GIni.GP[1].PFlowCtrlMode = FlowCtrl;
3553         }
3554
3555         /*
3556         ** d) What is the RoleParameter?
3557         */
3558         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3559                 Role_B[pAC->Index] != NULL) {
3560                 if (strcmp(Role_B[pAC->Index],"")==0) {
3561                     IsRoleDefined = SK_FALSE;
3562                 } else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
3563                     MSMode = SK_MS_MODE_AUTO;
3564                 } else if (strcmp(Role_B[pAC->Index],"Master")==0) {
3565                     MSMode = SK_MS_MODE_MASTER;
3566                 } else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
3567                     MSMode = SK_MS_MODE_SLAVE;
3568                 } else {
3569                     printk("sk98lin: Illegal value \"%s\" for Role_B\n",
3570                         Role_B[pAC->Index]);
3571                     IsRoleDefined = SK_FALSE;
3572                 }
3573         } else {
3574             IsRoleDefined = SK_FALSE;
3575         }
3576
3577         if (IsRoleDefined) {
3578             pAC->GIni.GP[1].PMSMode = MSMode;
3579         }
3580
3581         /*
3582         ** Evaluate settings for both ports
3583         */
3584         pAC->ActivePort = 0;
3585         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3586                 PrefPort[pAC->Index] != NULL) {
3587                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
3588                         pAC->ActivePort             =  0;
3589                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
3590                         pAC->Rlmt.Net[0].PrefPort   =  0;
3591                 } else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
3592                         /*
3593                         ** do not set ActivePort here, thus a port
3594                         ** switch is issued after net up.
3595                         */
3596                         Port                        = 0;
3597                         pAC->Rlmt.Net[0].Preference = Port;
3598                         pAC->Rlmt.Net[0].PrefPort   = Port;
3599                 } else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
3600                         /*
3601                         ** do not set ActivePort here, thus a port
3602                         ** switch is issued after net up.
3603                         */
3604                         if (pAC->GIni.GIMacsFound == 1) {
3605                                 printk("sk98lin: Illegal value \"B\" for PrefPort.\n"
3606                                         "      Port B not available on single port adapters.\n");
3607
3608                                 pAC->ActivePort             =  0;
3609                                 pAC->Rlmt.Net[0].Preference = -1; /* auto */
3610                                 pAC->Rlmt.Net[0].PrefPort   =  0;
3611                         } else {
3612                                 Port                        = 1;
3613                                 pAC->Rlmt.Net[0].Preference = Port;
3614                                 pAC->Rlmt.Net[0].PrefPort   = Port;
3615                         }
3616                 } else {
3617                     printk("sk98lin: Illegal value \"%s\" for PrefPort\n",
3618                         PrefPort[pAC->Index]);
3619                 }
3620         }
3621
3622         pAC->RlmtNets = 1;
3623
3624         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3625                 RlmtMode[pAC->Index] != NULL) {
3626                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
3627                         pAC->RlmtMode = 0;
3628                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
3629                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3630                 } else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
3631                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3632                                         SK_RLMT_CHECK_LOC_LINK;
3633                 } else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
3634                         pAC->RlmtMode = SK_RLMT_CHECK_LINK     |
3635                                         SK_RLMT_CHECK_LOC_LINK |
3636                                         SK_RLMT_CHECK_SEG;
3637                 } else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
3638                         (pAC->GIni.GIMacsFound == 2)) {
3639                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3640                         pAC->RlmtNets = 2;
3641                 } else {
3642                     printk("sk98lin: Illegal value \"%s\" for"
3643                         " RlmtMode, using default\n",
3644                         RlmtMode[pAC->Index]);
3645                         pAC->RlmtMode = 0;
3646                 }
3647         } else {
3648                 pAC->RlmtMode = 0;
3649         }
3650
3651         /*
3652         ** Check the interrupt moderation parameters
3653         */
3654         if (Moderation[pAC->Index] != NULL) {
3655                 if (strcmp(Moderation[pAC->Index], "") == 0) {
3656                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3657                 } else if (strcmp(Moderation[pAC->Index], "Static") == 0) {
3658                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_STATIC;
3659                 } else if (strcmp(Moderation[pAC->Index], "Dynamic") == 0) {
3660                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_DYNAMIC;
3661                 } else if (strcmp(Moderation[pAC->Index], "None") == 0) {
3662                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3663                 } else {
3664                         printk("sk98lin: Illegal value \"%s\" for Moderation.\n"
3665                                 "      Disable interrupt moderation.\n",
3666                                 Moderation[pAC->Index]);
3667                         pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3668                 }
3669         } else {
3670                 pAC->DynIrqModInfo.IntModTypeSelect = C_INT_MOD_NONE;
3671         }
3672
3673         if (Stats[pAC->Index] != NULL) {
3674                 if (strcmp(Stats[pAC->Index], "Yes") == 0) {
3675                         pAC->DynIrqModInfo.DisplayStats = SK_TRUE;
3676                 } else {
3677                         pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3678                 }
3679         } else {
3680                 pAC->DynIrqModInfo.DisplayStats = SK_FALSE;
3681         }
3682
3683         if (ModerationMask[pAC->Index] != NULL) {
3684                 if (strcmp(ModerationMask[pAC->Index], "Rx") == 0) {
3685                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3686                 } else if (strcmp(ModerationMask[pAC->Index], "Tx") == 0) {
3687                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_ONLY;
3688                 } else if (strcmp(ModerationMask[pAC->Index], "Sp") == 0) {
3689                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_ONLY;
3690                 } else if (strcmp(ModerationMask[pAC->Index], "RxSp") == 0) {
3691                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3692                 } else if (strcmp(ModerationMask[pAC->Index], "SpRx") == 0) {
3693                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_RX;
3694                 } else if (strcmp(ModerationMask[pAC->Index], "RxTx") == 0) {
3695                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3696                 } else if (strcmp(ModerationMask[pAC->Index], "TxRx") == 0) {
3697                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3698                 } else if (strcmp(ModerationMask[pAC->Index], "TxSp") == 0) {
3699                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3700                 } else if (strcmp(ModerationMask[pAC->Index], "SpTx") == 0) {
3701                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_SP_TX;
3702                 } else if (strcmp(ModerationMask[pAC->Index], "RxTxSp") == 0) {
3703                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3704                 } else if (strcmp(ModerationMask[pAC->Index], "RxSpTx") == 0) {
3705                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3706                 } else if (strcmp(ModerationMask[pAC->Index], "TxRxSp") == 0) {
3707                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3708                 } else if (strcmp(ModerationMask[pAC->Index], "TxSpRx") == 0) {
3709                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3710                 } else if (strcmp(ModerationMask[pAC->Index], "SpTxRx") == 0) {
3711                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3712                 } else if (strcmp(ModerationMask[pAC->Index], "SpRxTx") == 0) {
3713                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_TX_SP;
3714                 } else { /* some rubbish */
3715                         pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_RX_ONLY;
3716                 }
3717         } else {  /* operator has stated nothing */
3718                 pAC->DynIrqModInfo.MaskIrqModeration = IRQ_MASK_TX_RX;
3719         }
3720
3721         if (AutoSizing[pAC->Index] != NULL) {
3722                 if (strcmp(AutoSizing[pAC->Index], "On") == 0) {
3723                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3724                 } else {
3725                         pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3726                 }
3727         } else {  /* operator has stated nothing */
3728                 pAC->DynIrqModInfo.AutoSizing = SK_FALSE;
3729         }
3730
3731         if (IntsPerSec[pAC->Index] != 0) {
3732                 if ((IntsPerSec[pAC->Index]< C_INT_MOD_IPS_LOWER_RANGE) ||
3733                         (IntsPerSec[pAC->Index] > C_INT_MOD_IPS_UPPER_RANGE)) {
3734                         printk("sk98lin: Illegal value \"%d\" for IntsPerSec. (Range: %d - %d)\n"
3735                                 "      Using default value of %i.\n",
3736                                 IntsPerSec[pAC->Index],
3737                                 C_INT_MOD_IPS_LOWER_RANGE,
3738                                 C_INT_MOD_IPS_UPPER_RANGE,
3739                                 C_INTS_PER_SEC_DEFAULT);
3740                         pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3741                 } else {
3742                         pAC->DynIrqModInfo.MaxModIntsPerSec = IntsPerSec[pAC->Index];
3743                 }
3744         } else {
3745                 pAC->DynIrqModInfo.MaxModIntsPerSec = C_INTS_PER_SEC_DEFAULT;
3746         }
3747
3748         /*
3749         ** Evaluate upper and lower moderation threshold
3750         */
3751         pAC->DynIrqModInfo.MaxModIntsPerSecUpperLimit =
3752                 pAC->DynIrqModInfo.MaxModIntsPerSec +
3753                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3754
3755         pAC->DynIrqModInfo.MaxModIntsPerSecLowerLimit =
3756                 pAC->DynIrqModInfo.MaxModIntsPerSec -
3757                 (pAC->DynIrqModInfo.MaxModIntsPerSec / 2);
3758
3759         pAC->DynIrqModInfo.PrevTimeVal = jiffies;  /* initial value */
3760
3761
3762 } /* GetConfiguration */
3763
3764
3765 /*****************************************************************************
3766  *
3767  *      ProductStr - return a adapter identification string from vpd
3768  *
3769  * Description:
3770  *      This function reads the product name string from the vpd area
3771  *      and puts it the field pAC->DeviceString.
3772  *
3773  * Returns: N/A
3774  */
3775 static void ProductStr(
3776 SK_AC   *pAC            /* pointer to adapter context */
3777 )
3778 {
3779 int     StrLen = 80;            /* length of the string, defined in SK_AC */
3780 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
3781 int     ReturnCode;             /* return code from vpd_read */
3782 unsigned long Flags;
3783
3784         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3785         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
3786                 &StrLen);
3787         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3788         if (ReturnCode != 0) {
3789                 /* there was an error reading the vpd data */
3790                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
3791                         ("Error reading VPD data: %d\n", ReturnCode));
3792                 pAC->DeviceStr[0] = '\0';
3793         }
3794 } /* ProductStr */
3795
3796 /*****************************************************************************
3797  *
3798  *      StartDrvCleanupTimer - Start timer to check for descriptors which
3799  *                             might be placed in descriptor ring, but
3800  *                             havent been handled up to now
3801  *
3802  * Description:
3803  *      This function requests a HW-timer fo the Yukon card. The actions to
3804  *      perform when this timer expires, are located in the SkDrvEvent().
3805  *
3806  * Returns: N/A
3807  */
3808 static void
3809 StartDrvCleanupTimer(SK_AC *pAC) {
3810     SK_EVPARA    EventParam;   /* Event struct for timer event */
3811
3812     SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
3813     EventParam.Para32[0] = SK_DRV_RX_CLEANUP_TIMER;
3814     SkTimerStart(pAC, pAC->IoBase, &pAC->DrvCleanupTimer,
3815                  SK_DRV_RX_CLEANUP_TIMER_LENGTH,
3816                  SKGE_DRV, SK_DRV_TIMER, EventParam);
3817 }
3818
3819 /*****************************************************************************
3820  *
3821  *      StopDrvCleanupTimer - Stop timer to check for descriptors
3822  *
3823  * Description:
3824  *      This function requests a HW-timer fo the Yukon card. The actions to
3825  *      perform when this timer expires, are located in the SkDrvEvent().
3826  *
3827  * Returns: N/A
3828  */
3829 static void
3830 StopDrvCleanupTimer(SK_AC *pAC) {
3831     SkTimerStop(pAC, pAC->IoBase, &pAC->DrvCleanupTimer);
3832     SK_MEMSET((char *) &pAC->DrvCleanupTimer, 0, sizeof(SK_TIMER));
3833 }
3834
3835 /****************************************************************************/
3836 /* functions for common modules *********************************************/
3837 /****************************************************************************/
3838
3839
3840 /*****************************************************************************
3841  *
3842  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
3843  *
3844  * Description:
3845  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
3846  *      is embedded into a socket buff data area.
3847  *
3848  * Context:
3849  *      runtime
3850  *
3851  * Returns:
3852  *      NULL or pointer to Mbuf.
3853  */
3854 SK_MBUF *SkDrvAllocRlmtMbuf(
3855 SK_AC           *pAC,           /* pointer to adapter context */
3856 SK_IOC          IoC,            /* the IO-context */
3857 unsigned        BufferSize)     /* size of the requested buffer */
3858 {
3859 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
3860 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
3861
3862         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
3863         if (pMsgBlock == NULL) {
3864                 return (NULL);
3865         }
3866         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
3867         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
3868         pRlmtMbuf->pNext = NULL;
3869         pRlmtMbuf->pOs = pMsgBlock;
3870         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
3871         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
3872         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
3873         return (pRlmtMbuf);
3874
3875 } /* SkDrvAllocRlmtMbuf */
3876
3877
3878 /*****************************************************************************
3879  *
3880  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
3881  *
3882  * Description:
3883  *      This routine frees one or more RLMT mbuf(s).
3884  *
3885  * Context:
3886  *      runtime
3887  *
3888  * Returns:
3889  *      Nothing
3890  */
3891 void  SkDrvFreeRlmtMbuf(
3892 SK_AC           *pAC,           /* pointer to adapter context */
3893 SK_IOC          IoC,            /* the IO-context */
3894 SK_MBUF         *pMbuf)         /* size of the requested buffer */
3895 {
3896 SK_MBUF         *pFreeMbuf;
3897 SK_MBUF         *pNextMbuf;
3898
3899         pFreeMbuf = pMbuf;
3900         do {
3901                 pNextMbuf = pFreeMbuf->pNext;
3902                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
3903                 pFreeMbuf = pNextMbuf;
3904         } while ( pFreeMbuf != NULL );
3905 } /* SkDrvFreeRlmtMbuf */
3906
3907
3908 /*****************************************************************************
3909  *
3910  *      SkOsGetTime - provide a time value
3911  *
3912  * Description:
3913  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
3914  *      It is not used for absolute time, but only for time differences.
3915  *
3916  *
3917  * Returns:
3918  *      Time value
3919  */
3920 SK_U64 SkOsGetTime(SK_AC *pAC)
3921 {
3922         SK_U64  PrivateJiffies;
3923         SkOsGetTimeCurrent(pAC, &PrivateJiffies);
3924         return PrivateJiffies;
3925 } /* SkOsGetTime */
3926
3927
3928 /*****************************************************************************
3929  *
3930  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
3931  *
3932  * Description:
3933  *      This routine reads a 32 bit value from the pci configuration
3934  *      space.
3935  *
3936  * Returns:
3937  *      0 - indicate everything worked ok.
3938  *      != 0 - error indication
3939  */
3940 int SkPciReadCfgDWord(
3941 SK_AC *pAC,             /* Adapter Control structure pointer */
3942 int PciAddr,            /* PCI register address */
3943 SK_U32 *pVal)           /* pointer to store the read value */
3944 {
3945         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
3946         return(0);
3947 } /* SkPciReadCfgDWord */
3948
3949
3950 /*****************************************************************************
3951  *
3952  *      SkPciReadCfgWord - read a 16 bit value from pci config space
3953  *
3954  * Description:
3955  *      This routine reads a 16 bit value from the pci configuration
3956  *      space.
3957  *
3958  * Returns:
3959  *      0 - indicate everything worked ok.
3960  *      != 0 - error indication
3961  */
3962 int SkPciReadCfgWord(
3963 SK_AC *pAC,     /* Adapter Control structure pointer */
3964 int PciAddr,            /* PCI register address */
3965 SK_U16 *pVal)           /* pointer to store the read value */
3966 {
3967         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
3968         return(0);
3969 } /* SkPciReadCfgWord */
3970
3971
3972 /*****************************************************************************
3973  *
3974  *      SkPciReadCfgByte - read a 8 bit value from pci config space
3975  *
3976  * Description:
3977  *      This routine reads a 8 bit value from the pci configuration
3978  *      space.
3979  *
3980  * Returns:
3981  *      0 - indicate everything worked ok.
3982  *      != 0 - error indication
3983  */
3984 int SkPciReadCfgByte(
3985 SK_AC *pAC,     /* Adapter Control structure pointer */
3986 int PciAddr,            /* PCI register address */
3987 SK_U8 *pVal)            /* pointer to store the read value */
3988 {
3989         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
3990         return(0);
3991 } /* SkPciReadCfgByte */
3992
3993
3994 /*****************************************************************************
3995  *
3996  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
3997  *
3998  * Description:
3999  *      This routine writes a 32 bit value to the pci configuration
4000  *      space.
4001  *
4002  * Returns:
4003  *      0 - indicate everything worked ok.
4004  *      != 0 - error indication
4005  */
4006 int SkPciWriteCfgDWord(
4007 SK_AC *pAC,     /* Adapter Control structure pointer */
4008 int PciAddr,            /* PCI register address */
4009 SK_U32 Val)             /* pointer to store the read value */
4010 {
4011         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
4012         return(0);
4013 } /* SkPciWriteCfgDWord */
4014
4015
4016 /*****************************************************************************
4017  *
4018  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
4019  *
4020  * Description:
4021  *      This routine writes a 16 bit value to the pci configuration
4022  *      space. The flag PciConfigUp indicates whether the config space
4023  *      is accesible or must be set up first.
4024  *
4025  * Returns:
4026  *      0 - indicate everything worked ok.
4027  *      != 0 - error indication
4028  */
4029 int SkPciWriteCfgWord(
4030 SK_AC *pAC,     /* Adapter Control structure pointer */
4031 int PciAddr,            /* PCI register address */
4032 SK_U16 Val)             /* pointer to store the read value */
4033 {
4034         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4035         return(0);
4036 } /* SkPciWriteCfgWord */
4037
4038
4039 /*****************************************************************************
4040  *
4041  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4042  *
4043  * Description:
4044  *      This routine writes a 8 bit value to the pci configuration
4045  *      space. The flag PciConfigUp indicates whether the config space
4046  *      is accesible or must be set up first.
4047  *
4048  * Returns:
4049  *      0 - indicate everything worked ok.
4050  *      != 0 - error indication
4051  */
4052 int SkPciWriteCfgByte(
4053 SK_AC *pAC,     /* Adapter Control structure pointer */
4054 int PciAddr,            /* PCI register address */
4055 SK_U8 Val)              /* pointer to store the read value */
4056 {
4057         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4058         return(0);
4059 } /* SkPciWriteCfgByte */
4060
4061
4062 /*****************************************************************************
4063  *
4064  *      SkDrvEvent - handle driver events
4065  *
4066  * Description:
4067  *      This function handles events from all modules directed to the driver
4068  *
4069  * Context:
4070  *      Is called under protection of slow path lock.
4071  *
4072  * Returns:
4073  *      0 if everything ok
4074  *      < 0  on error
4075  *
4076  */
4077 int SkDrvEvent(
4078 SK_AC *pAC,             /* pointer to adapter context */
4079 SK_IOC IoC,             /* io-context */
4080 SK_U32 Event,           /* event-id */
4081 SK_EVPARA Param)        /* event-parameter */
4082 {
4083 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4084 struct sk_buff  *pMsg;          /* pointer to a message block */
4085 int             FromPort;       /* the port from which we switch away */
4086 int             ToPort;         /* the port we switch to */
4087 SK_EVPARA       NewPara;        /* parameter for further events */
4088 int             Stat;
4089 unsigned long   Flags;
4090 SK_BOOL         DualNet;
4091
4092         switch (Event) {
4093         case SK_DRV_ADAP_FAIL:
4094                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4095                         ("ADAPTER FAIL EVENT\n"));
4096                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4097                 /* disable interrupts */
4098                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4099                 /* cgoos */
4100                 break;
4101         case SK_DRV_PORT_FAIL:
4102                 FromPort = Param.Para32[0];
4103                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4104                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4105                 if (FromPort == 0) {
4106                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4107                 } else {
4108                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4109                 }
4110                 /* cgoos */
4111                 break;
4112         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4113                 /* action list 4 */
4114                 FromPort = Param.Para32[0];
4115                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4116                         ("PORT RESET EVENT, Port: %d ", FromPort));
4117                 NewPara.Para64 = FromPort;
4118                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4119                 spin_lock_irqsave(
4120                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4121                         Flags);
4122
4123                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4124                 netif_carrier_off(pAC->dev[Param.Para32[0]]);
4125                 spin_unlock_irqrestore(
4126                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4127                         Flags);
4128
4129                 /* clear rx ring from received frames */
4130                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4131
4132                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4133                 spin_lock_irqsave(
4134                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4135                         Flags);
4136
4137                 /* tschilling: Handling of return value inserted. */
4138                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4139                         if (FromPort == 0) {
4140                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4141                         } else {
4142                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4143                         }
4144                 }
4145                 SkAddrMcUpdate(pAC,IoC, FromPort);
4146                 PortReInitBmu(pAC, FromPort);
4147                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4148                 ClearAndStartRx(pAC, FromPort);
4149                 spin_unlock_irqrestore(
4150                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4151                         Flags);
4152                 break;
4153         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4154                 /* action list 5 */
4155                 FromPort = Param.Para32[0];
4156                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4157                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4158                 /* Mac update */
4159                 SkAddrMcUpdate(pAC,IoC, FromPort);
4160
4161                 if (DoPrintInterfaceChange) {
4162                 printk("%s: network connection up using"
4163                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4164
4165                 /* tschilling: Values changed according to LinkSpeedUsed. */
4166                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4167                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4168                         printk("    speed:           10\n");
4169                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4170                         printk("    speed:           100\n");
4171                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4172                         printk("    speed:           1000\n");
4173                 } else {
4174                         printk("    speed:           unknown\n");
4175                 }
4176
4177
4178                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4179                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4180                         Stat == SK_LMODE_STAT_AUTOFULL) {
4181                         printk("    autonegotiation: yes\n");
4182                 }
4183                 else {
4184                         printk("    autonegotiation: no\n");
4185                 }
4186                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4187                         Stat == SK_LMODE_STAT_HALF) {
4188                         printk("    duplex mode:     half\n");
4189                 }
4190                 else {
4191                         printk("    duplex mode:     full\n");
4192                 }
4193                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4194                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4195                         printk("    flowctrl:        remote send\n");
4196                 }
4197                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4198                         printk("    flowctrl:        local send\n");
4199                 }
4200                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4201                         printk("    flowctrl:        symmetric\n");
4202                 }
4203                 else {
4204                         printk("    flowctrl:        none\n");
4205                 }
4206
4207                 /* tschilling: Check against CopperType now. */
4208                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4209                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4210                         SK_LSPEED_STAT_1000MBPS)) {
4211                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4212                         if (Stat == SK_MS_STAT_MASTER ) {
4213                                 printk("    role:            master\n");
4214                         }
4215                         else if (Stat == SK_MS_STAT_SLAVE ) {
4216                                 printk("    role:            slave\n");
4217                         }
4218                         else {
4219                                 printk("    role:            ???\n");
4220                         }
4221                 }
4222
4223                 /*
4224                    Display dim (dynamic interrupt moderation)
4225                    informations
4226                  */
4227                 if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC)
4228                         printk("    irq moderation:  static (%d ints/sec)\n",
4229                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4230                 else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC)
4231                         printk("    irq moderation:  dynamic (%d ints/sec)\n",
4232                                         pAC->DynIrqModInfo.MaxModIntsPerSec);
4233                 else
4234                         printk("    irq moderation:  disabled\n");
4235
4236
4237 #ifdef SK_ZEROCOPY
4238                 if (pAC->ChipsetType)
4239 #ifdef USE_SK_TX_CHECKSUM
4240                         printk("    scatter-gather:  enabled\n");
4241 #else
4242                         printk("    tx-checksum:     disabled\n");
4243 #endif
4244                 else
4245                         printk("    scatter-gather:  disabled\n");
4246 #else
4247                         printk("    scatter-gather:  disabled\n");
4248 #endif
4249
4250 #ifndef USE_SK_RX_CHECKSUM
4251                         printk("    rx-checksum:     disabled\n");
4252 #endif
4253
4254                 } else {
4255                         DoPrintInterfaceChange = SK_TRUE;
4256                 }
4257
4258                 if ((Param.Para32[0] != pAC->ActivePort) &&
4259                         (pAC->RlmtNets == 1)) {
4260                         NewPara.Para32[0] = pAC->ActivePort;
4261                         NewPara.Para32[1] = Param.Para32[0];
4262                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4263                                 NewPara);
4264                 }
4265
4266                 /* Inform the world that link protocol is up. */
4267                 netif_carrier_on(pAC->dev[Param.Para32[0]]);
4268
4269                 break;
4270         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4271                 /* action list 7 */
4272                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4273                         ("NET DOWN EVENT "));
4274                 if (DoPrintInterfaceChange) {
4275                         printk("%s: network connection down\n",
4276                                 pAC->dev[Param.Para32[1]]->name);
4277                 } else {
4278                         DoPrintInterfaceChange = SK_TRUE;
4279                 }
4280                 netif_carrier_off(pAC->dev[Param.Para32[1]]);
4281                 break;
4282         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4283                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4284                         ("PORT SWITCH HARD "));
4285         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4286         /* action list 6 */
4287                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4288                         'A'+Param.Para32[1]);
4289         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4290                 FromPort = Param.Para32[0];
4291                 ToPort = Param.Para32[1];
4292                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4293                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4294                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4295                 NewPara.Para64 = FromPort;
4296                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4297                 NewPara.Para64 = ToPort;
4298                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4299                 spin_lock_irqsave(
4300                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4301                         Flags);
4302                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4303                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4304                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4305                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4306                 spin_unlock_irqrestore(
4307                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4308                         Flags);
4309
4310                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4311                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4312
4313                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4314                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4315                 spin_lock_irqsave(
4316                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4317                         Flags);
4318                 spin_lock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4319                 pAC->ActivePort = ToPort;
4320 #if 0
4321                 SetQueueSizes(pAC);
4322 #else
4323                 /* tschilling: New common function with minimum size check. */
4324                 DualNet = SK_FALSE;
4325                 if (pAC->RlmtNets == 2) {
4326                         DualNet = SK_TRUE;
4327                 }
4328
4329                 if (SkGeInitAssignRamToQueues(
4330                         pAC,
4331                         pAC->ActivePort,
4332                         DualNet)) {
4333                         spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4334                         spin_unlock_irqrestore(
4335                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4336                                 Flags);
4337                         printk("SkGeInitAssignRamToQueues failed.\n");
4338                         break;
4339                 }
4340 #endif
4341                 /* tschilling: Handling of return values inserted. */
4342                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4343                         SkGeInitPort(pAC, IoC, ToPort)) {
4344                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4345                 }
4346                 if (Event == SK_DRV_SWITCH_SOFT) {
4347                         SkMacRxTxEnable(pAC, IoC, FromPort);
4348                 }
4349                 SkMacRxTxEnable(pAC, IoC, ToPort);
4350                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4351                 SkAddrMcUpdate(pAC, IoC, FromPort);
4352                 SkAddrMcUpdate(pAC, IoC, ToPort);
4353                 PortReInitBmu(pAC, FromPort);
4354                 PortReInitBmu(pAC, ToPort);
4355                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4356                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4357                 ClearAndStartRx(pAC, FromPort);
4358                 ClearAndStartRx(pAC, ToPort);
4359                 spin_unlock(&pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock);
4360                 spin_unlock_irqrestore(
4361                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4362                         Flags);
4363                 break;
4364         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4365                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4366                         ("RLS "));
4367                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4368                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4369                 skb_put(pMsg, pRlmtMbuf->Length);
4370                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4371                         pMsg) < 0)
4372
4373                         DEV_KFREE_SKB_ANY(pMsg);
4374                 break;
4375         case SK_DRV_TIMER:
4376                 if (Param.Para32[0] == SK_DRV_MODERATION_TIMER) {
4377                         /*
4378                         ** expiration of the moderation timer implies that
4379                         ** dynamic moderation is to be applied
4380                         */
4381                         SkDimStartModerationTimer(pAC);
4382                         SkDimModerate(pAC);
4383                         if (pAC->DynIrqModInfo.DisplayStats) {
4384                             SkDimDisplayModerationSettings(pAC);
4385                         }
4386                 } else if (Param.Para32[0] == SK_DRV_RX_CLEANUP_TIMER) {
4387                         /*
4388                         ** check if we need to check for descriptors which
4389                         ** haven't been handled the last millisecs
4390                         */
4391                         StartDrvCleanupTimer(pAC);
4392                         if (pAC->GIni.GIMacsFound == 2) {
4393                                 ReceiveIrq(pAC, &pAC->RxPort[1], SK_FALSE);
4394                         }
4395                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_FALSE);
4396                 } else {
4397                         printk("Expiration of unknown timer\n");
4398                 }
4399                 break;
4400         default:
4401                 break;
4402         }
4403         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4404                 ("END EVENT "));
4405
4406         return (0);
4407 } /* SkDrvEvent */
4408
4409
4410 /*****************************************************************************
4411  *
4412  *      SkErrorLog - log errors
4413  *
4414  * Description:
4415  *      This function logs errors to the system buffer and to the console
4416  *
4417  * Returns:
4418  *      0 if everything ok
4419  *      < 0  on error
4420  *
4421  */
4422 void SkErrorLog(
4423 SK_AC   *pAC,
4424 int     ErrClass,
4425 int     ErrNum,
4426 char    *pErrorMsg)
4427 {
4428 char    ClassStr[80];
4429
4430         switch (ErrClass) {
4431         case SK_ERRCL_OTHER:
4432                 strcpy(ClassStr, "Other error");
4433                 break;
4434         case SK_ERRCL_CONFIG:
4435                 strcpy(ClassStr, "Configuration error");
4436                 break;
4437         case SK_ERRCL_INIT:
4438                 strcpy(ClassStr, "Initialization error");
4439                 break;
4440         case SK_ERRCL_NORES:
4441                 strcpy(ClassStr, "Out of resources error");
4442                 break;
4443         case SK_ERRCL_SW:
4444                 strcpy(ClassStr, "internal Software error");
4445                 break;
4446         case SK_ERRCL_HW:
4447                 strcpy(ClassStr, "Hardware failure");
4448                 break;
4449         case SK_ERRCL_COMM:
4450                 strcpy(ClassStr, "Communication error");
4451                 break;
4452         }
4453         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4454                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4455                 ClassStr, ErrNum, pErrorMsg);
4456
4457 } /* SkErrorLog */
4458
4459 #ifdef SK_DIAG_SUPPORT
4460
4461 /*****************************************************************************
4462  *
4463  *      SkDrvEnterDiagMode - handles DIAG attach request
4464  *
4465  * Description:
4466  *      Notify the kernel to NOT access the card any longer due to DIAG
4467  *      Deinitialize the Card
4468  *
4469  * Returns:
4470  *      int
4471  */
4472 int SkDrvEnterDiagMode(
4473 SK_AC   *pAc)   /* pointer to adapter context */
4474 {
4475         DEV_NET *pNet = netdev_priv(pAc->dev[0]);
4476         SK_AC   *pAC  = pNet->pAC;
4477
4478         SK_MEMCPY(&(pAc->PnmiBackup), &(pAc->PnmiStruct),
4479                         sizeof(SK_PNMI_STRUCT_DATA));
4480
4481         pAC->DiagModeActive = DIAG_ACTIVE;
4482         if (pAC->BoardLevel > SK_INIT_DATA) {
4483                 if (pNet->Up) {
4484                         pAC->WasIfUp[0] = SK_TRUE;
4485                         pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose      */
4486                         DoPrintInterfaceChange = SK_FALSE;
4487                         SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
4488                 } else {
4489                         pAC->WasIfUp[0] = SK_FALSE;
4490                 }
4491                 if (pNet != netdev_priv(pAC->dev[1])) {
4492                         pNet = netdev_priv(pAC->dev[1]);
4493                         if (pNet->Up) {
4494                                 pAC->WasIfUp[1] = SK_TRUE;
4495                                 pAC->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4496                                 DoPrintInterfaceChange = SK_FALSE;
4497                                 SkDrvDeInitAdapter(pAC, 1);  /* do SkGeClose  */
4498                         } else {
4499                                 pAC->WasIfUp[1] = SK_FALSE;
4500                         }
4501                 }
4502                 pAC->BoardLevel = SK_INIT_DATA;
4503         }
4504         return(0);
4505 }
4506
4507 /*****************************************************************************
4508  *
4509  *      SkDrvLeaveDiagMode - handles DIAG detach request
4510  *
4511  * Description:
4512  *      Notify the kernel to may access the card again after use by DIAG
4513  *      Initialize the Card
4514  *
4515  * Returns:
4516  *      int
4517  */
4518 int SkDrvLeaveDiagMode(
4519 SK_AC   *pAc)   /* pointer to adapter control context */
4520 {
4521         SK_MEMCPY(&(pAc->PnmiStruct), &(pAc->PnmiBackup),
4522                         sizeof(SK_PNMI_STRUCT_DATA));
4523         pAc->DiagModeActive    = DIAG_NOTACTIVE;
4524         pAc->Pnmi.DiagAttached = SK_DIAG_IDLE;
4525         if (pAc->WasIfUp[0] == SK_TRUE) {
4526                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4527                 DoPrintInterfaceChange = SK_FALSE;
4528                 SkDrvInitAdapter(pAc, 0);    /* first device  */
4529         }
4530         if (pAc->WasIfUp[1] == SK_TRUE) {
4531                 pAc->DiagFlowCtrl = SK_TRUE; /* for SkGeClose */
4532                 DoPrintInterfaceChange = SK_FALSE;
4533                 SkDrvInitAdapter(pAc, 1);    /* second device */
4534         }
4535         return(0);
4536 }
4537
4538 /*****************************************************************************
4539  *
4540  *      ParseDeviceNbrFromSlotName - Evaluate PCI device number
4541  *
4542  * Description:
4543  *      This function parses the PCI slot name information string and will
4544  *      retrieve the devcie number out of it. The slot_name maintianed by
4545  *      linux is in the form of '02:0a.0', whereas the first two characters
4546  *      represent the bus number in hex (in the sample above this is
4547  *      pci bus 0x02) and the next two characters the device number (0x0a).
4548  *
4549  * Returns:
4550  *      SK_U32: The device number from the PCI slot name
4551  */
4552
4553 static SK_U32 ParseDeviceNbrFromSlotName(
4554 const char *SlotName)   /* pointer to pci slot name eg. '02:0a.0' */
4555 {
4556         char    *CurrCharPos    = (char *) SlotName;
4557         int     FirstNibble     = -1;
4558         int     SecondNibble    = -1;
4559         SK_U32  Result          =  0;
4560
4561         while (*CurrCharPos != '\0') {
4562                 if (*CurrCharPos == ':') {
4563                         while (*CurrCharPos != '.') {
4564                                 CurrCharPos++;
4565                                 if (    (*CurrCharPos >= '0') &&
4566                                         (*CurrCharPos <= '9')) {
4567                                         if (FirstNibble == -1) {
4568                                                 /* dec. value for '0' */
4569                                                 FirstNibble = *CurrCharPos - 48;
4570                                         } else {
4571                                                 SecondNibble = *CurrCharPos - 48;
4572                                         }
4573                                 } else if (     (*CurrCharPos >= 'a') &&
4574                                                 (*CurrCharPos <= 'f')  ) {
4575                                         if (FirstNibble == -1) {
4576                                                 FirstNibble = *CurrCharPos - 87;
4577                                         } else {
4578                                                 SecondNibble = *CurrCharPos - 87;
4579                                         }
4580                                 } else {
4581                                         Result = 0;
4582                                 }
4583                         }
4584
4585                         Result = FirstNibble;
4586                         Result = Result << 4; /* first nibble is higher one */
4587                         Result = Result | SecondNibble;
4588                 }
4589                 CurrCharPos++;   /* next character */
4590         }
4591         return (Result);
4592 }
4593
4594 /****************************************************************************
4595  *
4596  *      SkDrvDeInitAdapter - deinitialize adapter (this function is only
4597  *                              called if Diag attaches to that card)
4598  *
4599  * Description:
4600  *      Close initialized adapter.
4601  *
4602  * Returns:
4603  *      0 - on success
4604  *      error code - on error
4605  */
4606 static int SkDrvDeInitAdapter(
4607 SK_AC   *pAC,           /* pointer to adapter context   */
4608 int      devNbr)        /* what device is to be handled */
4609 {
4610         struct SK_NET_DEVICE *dev;
4611
4612         dev = pAC->dev[devNbr];
4613
4614         /* On Linux 2.6 the network driver does NOT mess with reference
4615         ** counts.  The driver MUST be able to be unloaded at any time
4616         ** due to the possibility of hotplug.
4617         */
4618         if (SkGeClose(dev) != 0) {
4619                 return (-1);
4620         }
4621         return (0);
4622
4623 } /* SkDrvDeInitAdapter() */
4624
4625 /****************************************************************************
4626  *
4627  *      SkDrvInitAdapter - Initialize adapter (this function is only
4628  *                              called if Diag deattaches from that card)
4629  *
4630  * Description:
4631  *      Close initialized adapter.
4632  *
4633  * Returns:
4634  *      0 - on success
4635  *      error code - on error
4636  */
4637 static int SkDrvInitAdapter(
4638 SK_AC   *pAC,           /* pointer to adapter context   */
4639 int      devNbr)        /* what device is to be handled */
4640 {
4641         struct SK_NET_DEVICE *dev;
4642
4643         dev = pAC->dev[devNbr];
4644
4645         if (SkGeOpen(dev) != 0) {
4646                 return (-1);
4647         }
4648
4649         /*
4650         ** Use correct MTU size and indicate to kernel TX queue can be started
4651         */
4652         if (SkGeChangeMtu(dev, dev->mtu) != 0) {
4653                 return (-1);
4654         }
4655         return (0);
4656
4657 } /* SkDrvInitAdapter */
4658
4659 #endif
4660
4661 #ifdef DEBUG
4662 /****************************************************************************/
4663 /* "debug only" section *****************************************************/
4664 /****************************************************************************/
4665
4666
4667 /*****************************************************************************
4668  *
4669  *      DumpMsg - print a frame
4670  *
4671  * Description:
4672  *      This function prints frames to the system logfile/to the console.
4673  *
4674  * Returns: N/A
4675  *
4676  */
4677 static void DumpMsg(struct sk_buff *skb, char *str)
4678 {
4679         int     msglen;
4680
4681         if (skb == NULL) {
4682                 printk("DumpMsg(): NULL-Message\n");
4683                 return;
4684         }
4685
4686         if (skb->data == NULL) {
4687                 printk("DumpMsg(): Message empty\n");
4688                 return;
4689         }
4690
4691         msglen = skb->len;
4692         if (msglen > 64)
4693                 msglen = 64;
4694
4695         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4696
4697         DumpData((char *)skb->data, msglen);
4698
4699         printk("------- End of message ---------\n");
4700 } /* DumpMsg */
4701
4702
4703
4704 /*****************************************************************************
4705  *
4706  *      DumpData - print a data area
4707  *
4708  * Description:
4709  *      This function prints a area of data to the system logfile/to the
4710  *      console.
4711  *
4712  * Returns: N/A
4713  *
4714  */
4715 static void DumpData(char *p, int size)
4716 {
4717 register int    i;
4718 int     haddr, addr;
4719 char    hex_buffer[180];
4720 char    asc_buffer[180];
4721 char    HEXCHAR[] = "0123456789ABCDEF";
4722
4723         addr = 0;
4724         haddr = 0;
4725         hex_buffer[0] = 0;
4726         asc_buffer[0] = 0;
4727         for (i=0; i < size; ) {
4728                 if (*p >= '0' && *p <='z')
4729                         asc_buffer[addr] = *p;
4730                 else
4731                         asc_buffer[addr] = '.';
4732                 addr++;
4733                 asc_buffer[addr] = 0;
4734                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4735                 haddr++;
4736                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4737                 haddr++;
4738                 hex_buffer[haddr] = ' ';
4739                 haddr++;
4740                 hex_buffer[haddr] = 0;
4741                 p++;
4742                 i++;
4743                 if (i%16 == 0) {
4744                         printk("%s  %s\n", hex_buffer, asc_buffer);
4745                         addr = 0;
4746                         haddr = 0;
4747                 }
4748         }
4749 } /* DumpData */
4750
4751
4752 /*****************************************************************************
4753  *
4754  *      DumpLong - print a data area as long values
4755  *
4756  * Description:
4757  *      This function prints a area of data to the system logfile/to the
4758  *      console.
4759  *
4760  * Returns: N/A
4761  *
4762  */
4763 static void DumpLong(char *pc, int size)
4764 {
4765 register int    i;
4766 int     haddr, addr;
4767 char    hex_buffer[180];
4768 char    asc_buffer[180];
4769 char    HEXCHAR[] = "0123456789ABCDEF";
4770 long    *p;
4771 int     l;
4772
4773         addr = 0;
4774         haddr = 0;
4775         hex_buffer[0] = 0;
4776         asc_buffer[0] = 0;
4777         p = (long*) pc;
4778         for (i=0; i < size; ) {
4779                 l = (long) *p;
4780                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4781                 haddr++;
4782                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4783                 haddr++;
4784                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4785                 haddr++;
4786                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4787                 haddr++;
4788                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4789                 haddr++;
4790                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4791                 haddr++;
4792                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4793                 haddr++;
4794                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4795                 haddr++;
4796                 hex_buffer[haddr] = ' ';
4797                 haddr++;
4798                 hex_buffer[haddr] = 0;
4799                 p++;
4800                 i++;
4801                 if (i%8 == 0) {
4802                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4803                         haddr = 0;
4804                 }
4805         }
4806         printk("------------------------\n");
4807 } /* DumpLong */
4808
4809 #endif
4810
4811 static int __devinit skge_probe_one(struct pci_dev *pdev,
4812                 const struct pci_device_id *ent)
4813 {
4814         SK_AC                   *pAC;
4815         DEV_NET                 *pNet = NULL;
4816         struct net_device       *dev = NULL;
4817         static int boards_found = 0;
4818         int error = -ENODEV;
4819
4820         if (pci_enable_device(pdev))
4821                 goto out;
4822
4823         /* Configure DMA attributes. */
4824         if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
4825             pci_set_dma_mask(pdev, DMA_32BIT_MASK))
4826                 goto out_disable_device;
4827
4828
4829         if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) {
4830                 printk(KERN_ERR "Unable to allocate etherdev "
4831                        "structure!\n");
4832                 goto out_disable_device;
4833         }
4834
4835         pNet = netdev_priv(dev);
4836         pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
4837         if (!pNet->pAC) {
4838                 printk(KERN_ERR "Unable to allocate adapter "
4839                        "structure!\n");
4840                 goto out_free_netdev;
4841         }
4842
4843         memset(pNet->pAC, 0, sizeof(SK_AC));
4844         pAC = pNet->pAC;
4845         pAC->PciDev = pdev;
4846         pAC->PciDevId = pdev->device;
4847         pAC->dev[0] = dev;
4848         pAC->dev[1] = dev;
4849         sprintf(pAC->Name, "SysKonnect SK-98xx");
4850         pAC->CheckQueue = SK_FALSE;
4851
4852         pNet->Mtu = 1500;
4853         pNet->Up = 0;
4854         dev->irq = pdev->irq;
4855         error = SkGeInitPCI(pAC);
4856         if (error) {
4857                 printk(KERN_ERR "sk98lin: PCI setup failed: %i\n", error);
4858                 goto out_free_netdev;
4859         }
4860
4861         SET_MODULE_OWNER(dev);
4862         dev->open =             &SkGeOpen;
4863         dev->stop =             &SkGeClose;
4864         dev->hard_start_xmit =  &SkGeXmit;
4865         dev->get_stats =        &SkGeStats;
4866         dev->set_multicast_list = &SkGeSetRxMode;
4867         dev->set_mac_address =  &SkGeSetMacAddr;
4868         dev->do_ioctl =         &SkGeIoctl;
4869         dev->change_mtu =       &SkGeChangeMtu;
4870 #ifdef CONFIG_NET_POLL_CONTROLLER
4871         dev->poll_controller =  &SkGePollController;
4872 #endif
4873         SET_NETDEV_DEV(dev, &pdev->dev);
4874         SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4875
4876 #ifdef SK_ZEROCOPY
4877 #ifdef USE_SK_TX_CHECKSUM
4878         if (pAC->ChipsetType) {
4879                 /* Use only if yukon hardware */
4880                 /* SK and ZEROCOPY - fly baby... */
4881                 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
4882         }
4883 #endif
4884 #endif
4885
4886         pAC->Index = boards_found++;
4887
4888         if (SkGeBoardInit(dev, pAC))
4889                 goto out_free_netdev;
4890
4891         /* Register net device */
4892         if (register_netdev(dev)) {
4893                 printk(KERN_ERR "sk98lin: Could not register device.\n");
4894                 goto out_free_resources;
4895         }
4896
4897         /* Print adapter specific string from vpd */
4898         ProductStr(pAC);
4899         printk("%s: %s\n", dev->name, pAC->DeviceStr);
4900
4901         /* Print configuration settings */
4902         printk("      PrefPort:%c  RlmtMode:%s\n",
4903                 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
4904                 (pAC->RlmtMode==0)  ? "Check Link State" :
4905                 ((pAC->RlmtMode==1) ? "Check Link State" :
4906                 ((pAC->RlmtMode==3) ? "Check Local Port" :
4907                 ((pAC->RlmtMode==7) ? "Check Segmentation" :
4908                 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
4909
4910         SkGeYellowLED(pAC, pAC->IoBase, 1);
4911
4912         memcpy(&dev->dev_addr, &pAC->Addr.Net[0].CurrentMacAddress, 6);
4913         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4914
4915         SkGeProcCreate(dev);
4916
4917         pNet->PortNr = 0;
4918         pNet->NetNr  = 0;
4919
4920         boards_found++;
4921
4922         /* More then one port found */
4923         if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
4924                 if ((dev = alloc_etherdev(sizeof(DEV_NET))) == 0) {
4925                         printk(KERN_ERR "Unable to allocate etherdev "
4926                                 "structure!\n");
4927                         goto out;
4928                 }
4929
4930                 pAC->dev[1]   = dev;
4931                 pNet          = netdev_priv(dev);
4932                 pNet->PortNr  = 1;
4933                 pNet->NetNr   = 1;
4934                 pNet->pAC     = pAC;
4935                 pNet->Mtu     = 1500;
4936                 pNet->Up      = 0;
4937
4938                 dev->open               = &SkGeOpen;
4939                 dev->stop               = &SkGeClose;
4940                 dev->hard_start_xmit    = &SkGeXmit;
4941                 dev->get_stats          = &SkGeStats;
4942                 dev->set_multicast_list = &SkGeSetRxMode;
4943                 dev->set_mac_address    = &SkGeSetMacAddr;
4944                 dev->do_ioctl           = &SkGeIoctl;
4945                 dev->change_mtu         = &SkGeChangeMtu;
4946                 SET_NETDEV_DEV(dev, &pdev->dev);
4947                 SET_ETHTOOL_OPS(dev, &SkGeEthtoolOps);
4948
4949 #ifdef SK_ZEROCOPY
4950 #ifdef USE_SK_TX_CHECKSUM
4951                 if (pAC->ChipsetType) {
4952                         /* SG and ZEROCOPY - fly baby... */
4953                         dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
4954                 }
4955 #endif
4956 #endif
4957
4958                 if (register_netdev(dev)) {
4959                         printk(KERN_ERR "sk98lin: Could not register device for seconf port.\n");
4960                         free_netdev(dev);
4961                         pAC->dev[1] = pAC->dev[0];
4962                 } else {
4963                         SkGeProcCreate(dev);
4964                         memcpy(&dev->dev_addr,
4965                                         &pAC->Addr.Net[1].CurrentMacAddress, 6);
4966                         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
4967
4968                         printk("%s: %s\n", dev->name, pAC->DeviceStr);
4969                         printk("      PrefPort:B  RlmtMode:Dual Check Link State\n");
4970                 }
4971         }
4972
4973         /* Save the hardware revision */
4974         pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
4975                 (pAC->GIni.GIPciHwRev & 0x0F);
4976
4977         /* Set driver globals */
4978         pAC->Pnmi.pDriverFileName    = DRIVER_FILE_NAME;
4979         pAC->Pnmi.pDriverReleaseDate = DRIVER_REL_DATE;
4980
4981         memset(&pAC->PnmiBackup, 0, sizeof(SK_PNMI_STRUCT_DATA));
4982         memcpy(&pAC->PnmiBackup, &pAC->PnmiStruct, sizeof(SK_PNMI_STRUCT_DATA));
4983
4984         pci_set_drvdata(pdev, dev);
4985         return 0;
4986
4987  out_free_resources:
4988         FreeResources(dev);
4989  out_free_netdev:
4990         free_netdev(dev);
4991  out_disable_device:
4992         pci_disable_device(pdev);
4993  out:
4994         return error;
4995 }
4996
4997 static void __devexit skge_remove_one(struct pci_dev *pdev)
4998 {
4999         struct net_device *dev = pci_get_drvdata(pdev);
5000         DEV_NET *pNet = netdev_priv(dev);
5001         SK_AC *pAC = pNet->pAC;
5002         struct net_device *otherdev = pAC->dev[1];
5003
5004         SkGeProcRemove(dev);
5005         unregister_netdev(dev);
5006         if (otherdev != dev)
5007                 SkGeProcRemove(otherdev);
5008
5009         SkGeYellowLED(pAC, pAC->IoBase, 0);
5010
5011         if (pAC->BoardLevel == SK_INIT_RUN) {
5012                 SK_EVPARA EvPara;
5013                 unsigned long Flags;
5014
5015                 /* board is still alive */
5016                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
5017                 EvPara.Para32[0] = 0;
5018                 EvPara.Para32[1] = -1;
5019                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
5020                 EvPara.Para32[0] = 1;
5021                 EvPara.Para32[1] = -1;
5022                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
5023                 SkEventDispatcher(pAC, pAC->IoBase);
5024                 /* disable interrupts */
5025                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
5026                 SkGeDeInit(pAC, pAC->IoBase);
5027                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
5028                 pAC->BoardLevel = SK_INIT_DATA;
5029                 /* We do NOT check here, if IRQ was pending, of course*/
5030         }
5031
5032         if (pAC->BoardLevel == SK_INIT_IO) {
5033                 /* board is still alive */
5034                 SkGeDeInit(pAC, pAC->IoBase);
5035                 pAC->BoardLevel = SK_INIT_DATA;
5036         }
5037
5038         FreeResources(dev);
5039         free_netdev(dev);
5040         if (otherdev != dev)
5041                 free_netdev(otherdev);
5042         kfree(pAC);
5043 }
5044
5045 #ifdef CONFIG_PM
5046 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
5047 {
5048         struct net_device *dev = pci_get_drvdata(pdev);
5049         DEV_NET *pNet = netdev_priv(dev);
5050         SK_AC *pAC = pNet->pAC;
5051         struct net_device *otherdev = pAC->dev[1];
5052
5053         if (netif_running(dev)) {
5054                 netif_carrier_off(dev);
5055                 DoPrintInterfaceChange = SK_FALSE;
5056                 SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
5057                 netif_device_detach(dev);
5058         }
5059         if (otherdev != dev) {
5060                 if (netif_running(otherdev)) {
5061                         netif_carrier_off(otherdev);
5062                         DoPrintInterfaceChange = SK_FALSE;
5063                         SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
5064                         netif_device_detach(otherdev);
5065                 }
5066         }
5067
5068         pci_save_state(pdev);
5069         pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
5070         if (pAC->AllocFlag & SK_ALLOC_IRQ) {
5071                 free_irq(dev->irq, dev);
5072         }
5073         pci_disable_device(pdev);
5074         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5075
5076         return 0;
5077 }
5078
5079 static int skge_resume(struct pci_dev *pdev)
5080 {
5081         struct net_device *dev = pci_get_drvdata(pdev);
5082         DEV_NET *pNet = netdev_priv(dev);
5083         SK_AC *pAC = pNet->pAC;
5084         struct net_device *otherdev = pAC->dev[1];
5085         int ret;
5086
5087         pci_set_power_state(pdev, PCI_D0);
5088         pci_restore_state(pdev);
5089         pci_enable_device(pdev);
5090         pci_set_master(pdev);
5091         if (pAC->GIni.GIMacsFound == 2)
5092                 ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
5093         else
5094                 ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
5095         if (ret) {
5096                 printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
5097                 pAC->AllocFlag &= ~SK_ALLOC_IRQ;
5098                 dev->irq = 0;
5099                 pci_disable_device(pdev);
5100                 return -EBUSY;
5101         }
5102
5103         netif_device_attach(dev);
5104         if (netif_running(dev)) {
5105                 DoPrintInterfaceChange = SK_FALSE;
5106                 SkDrvInitAdapter(pAC, 0);    /* first device  */
5107         }
5108         if (otherdev != dev) {
5109                 netif_device_attach(otherdev);
5110                 if (netif_running(otherdev)) {
5111                         DoPrintInterfaceChange = SK_FALSE;
5112                         SkDrvInitAdapter(pAC, 1);    /* second device  */
5113                 }
5114         }
5115
5116         return 0;
5117 }
5118 #else
5119 #define skge_suspend NULL
5120 #define skge_resume NULL
5121 #endif
5122
5123 static struct pci_device_id skge_pci_tbl[] = {
5124         { PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5125         { PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5126         { PCI_VENDOR_ID_SYSKONNECT, 0x4300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5127         { PCI_VENDOR_ID_SYSKONNECT, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5128 /* DLink card does not have valid VPD so this driver gags
5129  *      { PCI_VENDOR_ID_DLINK, 0x4c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5130  */
5131         { PCI_VENDOR_ID_MARVELL, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5132         { PCI_VENDOR_ID_MARVELL, 0x5005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5133         { PCI_VENDOR_ID_CNET, 0x434e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5134         { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
5135         { PCI_VENDOR_ID_LINKSYS, 0x1064, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
5136         { 0 }
5137 };
5138
5139 MODULE_DEVICE_TABLE(pci, skge_pci_tbl);
5140
5141 static struct pci_driver skge_driver = {
5142         .name           = "sk98lin",
5143         .id_table       = skge_pci_tbl,
5144         .probe          = skge_probe_one,
5145         .remove         = __devexit_p(skge_remove_one),
5146         .suspend        = skge_suspend,
5147         .resume         = skge_resume,
5148 };
5149
5150 static int __init skge_init(void)
5151 {
5152         int error;
5153
5154         pSkRootDir = proc_mkdir(SKRootName, NULL);
5155         if (pSkRootDir)
5156                 pSkRootDir->owner = THIS_MODULE;
5157
5158         error = pci_register_driver(&skge_driver);
5159         if (error)
5160                 remove_proc_entry(SKRootName, NULL);
5161         return error;
5162 }
5163
5164 static void __exit skge_exit(void)
5165 {
5166         pci_unregister_driver(&skge_driver);
5167         remove_proc_entry(SKRootName, NULL);
5168
5169 }
5170
5171 module_init(skge_init);
5172 module_exit(skge_exit);