drivers/net/sk98lin/skge.c

   1 /******************************************************************************
   2  *
   3  * Name:    skge.c
   4  * Project:     GEnesis, PCI Gigabit Ethernet Adapter
   5  * Version:     $Revision: 1.46 $
   6  * Date:        $Date: 2003/02/25 14:16:36 $
   7  * Purpose:     The main driver source module
   8  *
   9  ******************************************************************************/
  10
  11 /******************************************************************************
  12  *
  13  *      (C)Copyright 1998-2003 SysKonnect GmbH.
  14  *
  15  *      Driver for SysKonnect Gigabit Ethernet Server Adapters:
  16  *
  17  *      SK-9871 (single link 1000Base-ZX)
  18  *      SK-9872 (dual link   1000Base-ZX)
  19  *      SK-9861 (single link 1000Base-SX, VF45 Volition Plug)
  20  *      SK-9862 (dual link   1000Base-SX, VF45 Volition Plug)
  21  *      SK-9841 (single link 1000Base-LX)
  22  *      SK-9842 (dual link   1000Base-LX)
  23  *      SK-9843 (single link 1000Base-SX)
  24  *      SK-9844 (dual link   1000Base-SX)
  25  *      SK-9821 (single link 1000Base-T)
  26  *      SK-9822 (dual link   1000Base-T)
  27  *      SK-9881 (single link 1000Base-SX V2 LC)
  28  *      SK-9871 (single link 1000Base-ZX V2)
  29  *      SK-9861 (single link 1000Base-SX V2, VF45 Volition Plug)
  30  *      SK-9841 (single link 1000Base-LX V2)
  31  *      SK-9843 (single link 1000Base-SX V2)
  32  *      SK-9821 (single link 1000Base-T V2)
  33  *
  34  *      Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
  35  *      SysKonnects GEnesis Solaris driver
  36  *      Author: Christoph Goos (cgoos@syskonnect.de)
  37  *              Mirko Lindner (mlindner@syskonnect.de)
  38  *
  39  *      Address all question to: linux@syskonnect.de
  40  *
  41  *      The technical manual for the adapters is available from SysKonnect's
  42  *      web pages: www.syskonnect.com
  43  *      Goto "Support" and search Knowledge Base for "manual".
  44  *
  45  *      This program is free software; you can redistribute it and/or modify
  46  *      it under the terms of the GNU General Public License as published by
  47  *      the Free Software Foundation; either version 2 of the License, or
  48  *      (at your option) any later version.
  49  *
  50  *      The information in this file is provided "AS IS" without warranty.
  51  *
  52  ******************************************************************************/
  53
  54 /******************************************************************************
  55  *
  56  * History:
  57  *
  58  *      $Log: skge.c,v $
  59  *      Revision 1.46  2003/02/25 14:16:36  mlindner
  60  *      Fix: Copyright statement
  61  *
  62  *      Revision 1.45  2003/02/25 13:25:55  mlindner
  63  *      Add: Performance improvements
  64  *      Add: Support for various vendors
  65  *      Fix: Init function
  66  *
  67  *      Revision 1.44  2003/01/09 09:25:26  mlindner
  68  *      Fix: Remove useless init_module/cleanup_module forward declarations
  69  *
  70  *      Revision 1.43  2002/11/29 08:42:41  mlindner
  71  *      Fix: Boot message
  72  *
  73  *      Revision 1.42  2002/11/28 13:30:23  mlindner
  74  *      Add: New frame check
  75  *
  76  *      Revision 1.41  2002/11/27 13:55:18  mlindner
  77  *      Fix: Drop wrong csum packets
  78  *      Fix: Initialize proc_entry after hw check
  79  *
  80  *      Revision 1.40  2002/10/31 07:50:37  tschilli
  81  *      Function SkGeInitAssignRamToQueues() from common module inserted.
  82  *      Autonegotiation is set to ON for all adapters.
  83  *      LinkSpeedUsed is used in link up status report.
  84  *      Role parameter will show up for 1000 Mbps links only.
  85  *      GetConfiguration() inserted after init level 1 in SkGeChangeMtu().
  86  *      All return values of SkGeInit() and SkGeInitPort() are checked.
  87  *
  88  *      Revision 1.39  2002/10/02 12:56:05  mlindner
  89  *      Add: Support for Yukon
  90  *      Add: Support for ZEROCOPY, scatter-gather and hw checksum
  91  *      Add: New transmit ring function (use SG and TCP/UDP hardware checksumming)
  92  *      Add: New init function
  93  *      Add: Speed check and setup
  94  *      Add: Merge source for kernel 2.2.x and 2.4.x
  95  *      Add: Opcode check for tcp
  96  *      Add: Frame length check
  97  *      Fix: Transmit complete interrupt
  98  *      Fix: Interrupt moderation
  99  *
 100  *      Revision 1.29.2.13  2002/01/14 12:44:52  mlindner
 101  *      Fix: Rlmt modes
 102  *
 103  *      Revision 1.29.2.12  2001/12/07 12:06:18  mlindner
 104  *      Fix: malloc -> slab changes
 105  *
 106  *      Revision 1.29.2.11  2001/12/06 15:19:20  mlindner
 107  *      Add: DMA attributes
 108  *      Fix: Module initialisation
 109  *      Fix: pci_map_single and pci_unmap_single replaced
 110  *
 111  *      Revision 1.29.2.10  2001/12/06 09:56:50  mlindner
 112  *      Corrected some printk's
 113  *
 114  *      Revision 1.29.2.9  2001/09/05 12:15:34  mlindner
 115  *      Add: LBFO Changes
 116  *      Fix: Counter Errors (Jumbo == to long errors)
 117  *      Fix: Changed pAC->PciDev declaration
 118  *      Fix: too short counters
 119  *
 120  *      Revision 1.29.2.8  2001/06/25 12:10:44  mlindner
 121  *      fix: ReceiveIrq() changed.
 122  *
 123  *      Revision 1.29.2.7  2001/06/25 08:07:05  mlindner
 124  *      fix: RLMT locking in ReceiveIrq() changed.
 125  *
 126  *      Revision 1.29.2.6  2001/05/21 07:59:29  mlindner
 127  *      fix: MTU init problems
 128  *
 129  *      Revision 1.29.2.5  2001/05/08 11:25:08  mlindner
 130  *      fix: removed VLAN error message
 131  *
 132  *      Revision 1.29.2.4  2001/05/04 13:31:43  gklug
 133  *      fix: do not handle eth_copy on bad fragments received.
 134  *
 135  *      Revision 1.29.2.3  2001/04/23 08:06:43  mlindner
 136  *      Fix: error handling
 137  *
 138  *      Revision 1.29.2.2  2001/03/15 12:04:54  mlindner
 139  *      Fixed memory problem
 140  *
 141  *      Revision 1.29.2.1  2001/03/12 16:41:44  mlindner
 142  *      add: procfs function
 143  *      add: dual-net function
 144  *      add: RLMT networks
 145  *      add: extended PNMI features
 146  *
 147  *      Kernel 2.4.x specific:
 148  *      Revision 1.xx  2000/09/12 13:31:56  cgoos
 149  *      Fixed missign "dev=NULL in skge_probe.
 150  *      Added counting for jumbo frames (corrects error statistic).
 151  *      Removed VLAN tag check (enables VLAN support).
 152  *
 153  *      Kernel 2.2.x specific:
 154  *      Revision 1.29  2000/02/21 13:31:56  cgoos
 155  *      Fixed "unused" warning for UltraSPARC change.
 156  *
 157  *      Partially kernel 2.2.x specific:
 158  *      Revision 1.28  2000/02/21 10:32:36  cgoos
 159  *      Added fixes for UltraSPARC.
 160  *      Now printing RlmtMode and PrefPort setting at startup.
 161  *      Changed XmitFrame return value.
 162  *      Fixed rx checksum calculation for BIG ENDIAN systems.
 163  *      Fixed rx jumbo frames counted as ierrors.
 164  *
 165  *
 166  *      Revision 1.27  1999/11/25 09:06:28  cgoos
 167  *      Changed base_addr to unsigned long.
 168  *
 169  *      Revision 1.26  1999/11/22 13:29:16  cgoos
 170  *      Changed license header to GPL.
 171  *      Changes for inclusion in linux kernel (2.2.13).
 172  *      Removed 2.0.x defines.
 173  *      Changed SkGeProbe to skge_probe.
 174  *      Added checks in SkGeIoctl.
 175  *
 176  *      Revision 1.25  1999/10/07 14:47:52  cgoos
 177  *      Changed 984x to 98xx.
 178  *
 179  *      Revision 1.24  1999/09/30 07:21:01  cgoos
 180  *      Removed SK_RLMT_SLOW_LOOKAHEAD option.
 181  *      Giving spanning tree packets also to OS now.
 182  *
 183  *      Revision 1.23  1999/09/29 07:36:50  cgoos
 184  *      Changed assignment for IsBc/IsMc.
 185  *
 186  *      Revision 1.22  1999/09/28 12:57:09  cgoos
 187  *      Added CheckQueue also to Single-Port-ISR.
 188  *
 189  *      Revision 1.21  1999/09/28 12:42:41  cgoos
 190  *      Changed parameter strings for RlmtMode.
 191  *
 192  *      Revision 1.20  1999/09/28 12:37:57  cgoos
 193  *      Added CheckQueue for fast delivery of RLMT frames.
 194  *
 195  *      Revision 1.19  1999/09/16 07:57:25  cgoos
 196  *      Copperfield changes.
 197  *
 198  *      Revision 1.18  1999/09/03 13:06:30  cgoos
 199  *      Fixed RlmtMode=CheckSeg bug: wrong DEV_KFREE_SKB in RLMT_SEND caused
 200  *      double allocated skb's.
 201  *      FrameStat in ReceiveIrq was accessed via wrong Rxd.
 202  *      Queue size for async. standby Tx queue was zero.
 203  *      FillRxLimit of 0 could cause problems with ReQueue, changed to 1.
 204  *      Removed debug output of checksum statistic.
 205  *
 206  *      Revision 1.17  1999/08/11 13:55:27  cgoos
 207  *      Transmit descriptor polling was not reenabled after SkGePortInit.
 208  *
 209  *      Revision 1.16  1999/07/27 15:17:29  cgoos
 210  *      Added some "\n" in output strings (removed while debuging...).
 211  *
 212  *      Revision 1.15  1999/07/23 12:09:30  cgoos
 213  *      Performance optimization, rx checksumming, large frame support.
 214  *
 215  *      Revision 1.14  1999/07/14 11:26:27  cgoos
 216  *      Removed Link LED settings (now in RLMT).
 217  *      Added status output at NET UP.
 218  *      Fixed SMP problems with Tx and SWITCH running in parallel.
 219  *      Fixed return code problem at RLMT_SEND event.
 220  *
 221  *      Revision 1.13  1999/04/07 10:11:42  cgoos
 222  *      Fixed Single Port problems.
 223  *      Fixed Multi-Adapter problems.
 224  *      Always display startup string.
 225  *
 226  *      Revision 1.12  1999/03/29 12:26:37  cgoos
 227  *      Reversed locking to fine granularity.
 228  *      Fixed skb double alloc problem (caused by incorrect xmit return code).
 229  *      Enhanced function descriptions.
 230  *
 231  *      Revision 1.11  1999/03/15 13:10:51  cgoos
 232  *      Changed device identifier in output string to ethX.
 233  *
 234  *      Revision 1.10  1999/03/15 12:12:34  cgoos
 235  *      Changed copyright notice.
 236  *
 237  *      Revision 1.9  1999/03/15 12:10:17  cgoos
 238  *      Changed locking to one driver lock.
 239  *      Added check of SK_AC-size (for consistency with library).
 240  *
 241  *      Revision 1.8  1999/03/08 11:44:02  cgoos
 242  *      Fixed missing dev->tbusy in SkGeXmit.
 243  *      Changed large frame (jumbo) buffer number.
 244  *      Added copying of short frames.
 245  *
 246  *      Revision 1.7  1999/03/04 13:26:57  cgoos
 247  *      Fixed spinlock calls for SMP.
 248  *
 249  *      Revision 1.6  1999/03/02 09:53:51  cgoos
 250  *      Added descriptor revertion for big endian machines.
 251  *
 252  *      Revision 1.5  1999/03/01 08:50:59  cgoos
 253  *      Fixed SkGeChangeMtu.
 254  *      Fixed pci config space accesses.
 255  *
 256  *      Revision 1.4  1999/02/18 15:48:44  cgoos
 257  *      Corrected some printk's.
 258  *
 259  *      Revision 1.3  1999/02/18 12:45:55  cgoos
 260  *      Changed SK_MAX_CARD_PARAM to default 16
 261  *
 262  *      Revision 1.2  1999/02/18 10:55:32  cgoos
 263  *      Removed SkGeDrvTimeStamp function.
 264  *      Printing "ethX:" before adapter type at adapter init.
 265  *
 266  *
 267  *      10-Feb-1999 cg  Created, based on Linux' acenic.c, 3c59x.c and
 268  *                      SysKonnects GEnesis Solaris driver
 269  *
 270  ******************************************************************************/
 271
 272 /******************************************************************************
 273  *
 274  * Possible compiler options (#define xxx / -Dxxx):
 275  *
 276  *      debugging can be enable by changing SK_DEBUG_CHKMOD and
 277  *      SK_DEBUG_CHKCAT in makefile (described there).
 278  *
 279  ******************************************************************************/
 280
 281 /******************************************************************************
 282  *
 283  * Description:
 284  *
 285  *      This is the main module of the Linux GE driver.
 286  *
 287  *      All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h
 288  *      are part of SysKonnect's COMMON MODULES for the SK-98xx adapters.
 289  *      Those are used for drivers on multiple OS', so some thing may seem
 290  *      unnecessary complicated on Linux. Please do not try to 'clean up'
 291  *      them without VERY good reasons, because this will make it more
 292  *      difficult to keep the Linux driver in synchronisation with the
 293  *      other versions.
 294  *
 295  * Include file hierarchy:
 296  *
 297  *      <linux/module.h>
 298  *
 299  *      "h/skdrv1st.h"
 300  *              <linux/version.h>
 301  *              <linux/types.h>
 302  *              <linux/kernel.h>
 303  *              <linux/string.h>
 304  *              <linux/errno.h>
 305  *              <linux/ioport.h>
 306  *              <linux/slab.h>
 307  *              <linux/interrupt.h>
 308  *              <linux/pci.h>
 309  *              <asm/byteorder.h>
 310  *              <asm/bitops.h>
 311  *              <asm/io.h>
 312  *              <linux/netdevice.h>
 313  *              <linux/etherdevice.h>
 314  *              <linux/skbuff.h>
 315  *          those three depending on kernel version used:
 316  *              <linux/bios32.h>
 317  *              <linux/init.h>
 318  *              <asm/uaccess.h>
 319  *              <net/checksum.h>
 320  *
 321  *              "h/skerror.h"
 322  *              "h/skdebug.h"
 323  *              "h/sktypes.h"
 324  *              "h/lm80.h"
 325  *              "h/xmac_ii.h"
 326  *
 327  *      "h/skdrv2nd.h"
 328  *              "h/skqueue.h"
 329  *              "h/skgehwt.h"
 330  *              "h/sktimer.h"
 331  *              "h/ski2c.h"
 332  *              "h/skgepnmi.h"
 333  *              "h/skvpd.h"
 334  *              "h/skgehw.h"
 335  *              "h/skgeinit.h"
 336  *              "h/skaddr.h"
 337  *              "h/skgesirq.h"
 338  *              "h/skcsum.h"
 339  *              "h/skrlmt.h"
 340  *
 341  ******************************************************************************/
 342
 343 #include <config.h>
 344
 345 #include        "h/skversion.h"
 346 #if 0
 347 #include        <linux/module.h>
 348 #include        <linux/init.h>
 349 #include        <linux/proc_fs.h>
 350 #endif
 351 #include        "h/skdrv1st.h"
 352 #include        "h/skdrv2nd.h"
 353
 354
 355 /* defines ******************************************************************/
 356 /* for debuging on x86 only */
 357 /* #define BREAKPOINT() asm(" int $3"); */
 358
 359 /* use the scatter-gather functionality with sendfile() */
 360 #if 0
 361 #define SK_ZEROCOPY
 362 #endif
 363
 364 /* use of a transmit complete interrupt */
 365 #define USE_TX_COMPLETE
 366
 367 /* use interrupt moderation (for tx complete only) */
 368 #define USE_INT_MOD
 369 #define INTS_PER_SEC    1000
 370
 371 /*
 372  * threshold for copying small receive frames
 373  * set to 0 to avoid copying, set to 9001 to copy all frames
 374  */
 375 #define SK_COPY_THRESHOLD       50
 376
 377 /* number of adapters that can be configured via command line params */
 378 #define SK_MAX_CARD_PARAM       16
 379
 380
 381 /*
 382  * use those defines for a compile-in version of the driver instead
 383  * of command line parameters
 384  */
 385 /* #define LINK_SPEED_A {"Auto", }              */
 386 /* #define LINK_SPEED_B {"Auto", }              */
 387 /* #define AUTO_NEG_A   {"Sense", }             */
 388 /* #define AUTO_NEG_B   {"Sense", }             */
 389 /* #define DUP_CAP_A    {"Both", }              */
 390 /* #define DUP_CAP_B    {"Both", }              */
 391 /* #define FLOW_CTRL_A  {"SymOrRem", }          */
 392 /* #define FLOW_CTRL_B  {"SymOrRem", }          */
 393 /* #define ROLE_A       {"Auto", }              */
 394 /* #define ROLE_B       {"Auto", }              */
 395 /* #define PREF_PORT    {"A", }                 */
 396 /* #define RLMT_MODE    {"CheckLinkState", }    */
 397
 398 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
 399 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
 400 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
 401
 402 /* function prototypes ******************************************************/
 403 static void     FreeResources(struct SK_NET_DEVICE *dev);
 404 static int      SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC);
 405 static SK_BOOL  BoardAllocMem(SK_AC *pAC);
 406 static void     BoardFreeMem(SK_AC *pAC);
 407 static void     BoardInitMem(SK_AC *pAC);
 408 static void     SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**,
 409                         int*, SK_BOOL);
 410
 411 #if 0
 412 static void     SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
 413 static void     SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
 414 static int      SkGeOpen(struct SK_NET_DEVICE *dev);
 415 static int      SkGeClose(struct SK_NET_DEVICE *dev);
 416 static int      SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 417 static int      SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p);
 418 static void     SkGeSetRxMode(struct SK_NET_DEVICE *dev);
 419 static struct   net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev);
 420 static int      SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd);
 421 #else
 422 void    SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
 423 void    SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
 424 int     SkGeOpen(struct SK_NET_DEVICE *dev);
 425 int     SkGeClose(struct SK_NET_DEVICE *dev);
 426 int     SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev);
 427 #endif
 428 static void     GetConfiguration(SK_AC*);
 429 static void     ProductStr(SK_AC*);
 430 static int      XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
 431 static void     FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
 432 static void     FillRxRing(SK_AC*, RX_PORT*);
 433 static SK_BOOL  FillRxDescriptor(SK_AC*, RX_PORT*);
 434 #if 0
 435 static void     ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
 436 #else
 437 void    ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL);
 438 #endif
 439 static void ClearAndStartRx(SK_AC*, int);
 440 static void     ClearTxIrq(SK_AC*, int, int);
 441 static void     ClearRxRing(SK_AC*, RX_PORT*);
 442 static void     ClearTxRing(SK_AC*, TX_PORT*);
 443 #if 0
 444 static void     SetQueueSizes(SK_AC     *pAC);
 445
 446 static int      SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu);
 447 #endif
 448 static void     PortReInitBmu(SK_AC*, int);
 449 #if 0
 450 static int      SkGeIocMib(DEV_NET*, unsigned int, int);
 451 static int      XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*);
 452 #endif
 453
 454 /*Extern */
 455
 456 /* external Proc function */
 457 extern int proc_read(
 458         char    *buffer,
 459         char    **buffer_location,
 460         off_t   offset,
 461         int             buffer_length,
 462         int             *eof,
 463         void    *data);
 464
 465 #ifdef DEBUG
 466 static void     DumpMsg(struct sk_buff*, char*);
 467 static void     DumpData(char*, int);
 468 static void     DumpLong(char*, int);
 469 #endif
 470 void dump_frag( SK_U8 *data, int length);
 471
 472 /* global variables *********************************************************/
 473 #if 0
 474 static const char *BootString = BOOT_STRING;
 475 #endif
 476 struct SK_NET_DEVICE *SkGeRootDev = NULL;
 477 static int probed __initdata = 0;
 478
 479 /* local variables **********************************************************/
 480 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
 481 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
 482
 483
 484 /* local variables **********************************************************/
 485 const char SK_Root_Dir_entry[8];
 486
 487 #if 0
 488 static struct proc_dir_entry    *pSkRootDir;
 489 #endif
 490
 491
 492 static struct pci_device_id supported[] = {
 493         {PCI_VENDOR_ID_3COM, 0x1700},
 494         {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE},
 495         {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU},
 496         {}
 497 };
 498
 499
 500 /*****************************************************************************
 501  *
 502  *      skge_probe - find all SK-98xx adapters
 503  *
 504  * Description:
 505  *      This function scans the PCI bus for SK-98xx adapters. Resources for
 506  *      each adapter are allocated and the adapter is brought into Init 1
 507  *      state.
 508  *
 509  * Returns:
 510  *      0, if everything is ok
 511  *      !=0, on error
 512  */
 513 #if 0
 514 static int __init skge_probe (void)
 515 #else
 516 int skge_probe (struct eth_device ** ret_dev)
 517 #endif
 518 {
 519 #if 0
 520         int                     proc_root_initialized = 0;
 521 #endif
 522         int                     boards_found = 0;
 523 #if 0
 524         int                     vendor_flag = SK_FALSE;
 525 #endif
 526         SK_AC                   *pAC;
 527         DEV_NET                 *pNet = NULL;
 528 #if 0
 529         struct proc_dir_entry   *pProcFile;
 530         struct pci_dev  *pdev = NULL;
 531         unsigned long           base_address;
 532 #else
 533         u32                     base_address;
 534 #endif
 535         struct SK_NET_DEVICE *dev = NULL;
 536 #if 0
 537         SK_BOOL DeviceFound = SK_FALSE;
 538 #endif
 539         SK_BOOL BootStringCount = SK_FALSE;
 540 #if 1
 541         pci_dev_t devno;
 542 #endif
 543
 544         if (probed)
 545                 return -ENODEV;
 546         probed++;
 547
 548         if (!pci_present())             /* is PCI support present? */
 549                 return -ENODEV;
 550
 551 #if 0
 552                 while((pdev = pci_find_class(PCI_CLASS_NETWORK_ETHERNET << 8, pdev)))
 553 #else
 554                 while((devno = pci_find_devices (supported, boards_found)) >= 0)
 555 #endif
 556                 {
 557
 558                 dev = NULL;
 559                 pNet = NULL;
 560
 561
 562 #if 0
 563                 SK_PCI_ISCOMPLIANT(vendor_flag, pdev);
 564                 if (!vendor_flag)
 565                         continue;
 566 #endif
 567
 568 /*              if ((pdev->vendor != PCI_VENDOR_ID_SYSKONNECT) &&
 569                         ((pdev->device != PCI_DEVICE_ID_SYSKONNECT_GE) ||
 570                         (pdev->device != PCI_DEVICE_ID_SYSKONNECT_YU))){
 571                         continue;
 572                 }
 573 */
 574 #if 0
 575                 /* Configure DMA attributes. */
 576                 if (pci_set_dma_mask(pdev, (u64) 0xffffffffffffffff) &&
 577                         pci_set_dma_mask(pdev, (u64) 0xffffffff))
 578                         continue;
 579 #endif
 580
 581
 582 #if 0
 583                 if ((dev = init_etherdev(dev, sizeof(DEV_NET))) == NULL) {
 584                         printk(KERN_ERR "Unable to allocate etherdev "
 585                                "structure!\n");
 586                         break;
 587                 }
 588 #else
 589                 dev = malloc (sizeof *dev);
 590                 memset(dev, 0, sizeof(*dev));
 591                 dev->priv = malloc(sizeof(DEV_NET));
 592 #endif
 593
 594                 if (dev->priv == NULL) {
 595                         printk(KERN_ERR "Unable to allocate adapter "
 596                                "structure!\n");
 597                         break;
 598                 }
 599
 600                 pNet = dev->priv;
 601                 pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL);
 602                 if (pNet->pAC == NULL){
 603                         kfree(dev->priv);
 604                         printk(KERN_ERR "Unable to allocate adapter "
 605                                "structure!\n");
 606                         break;
 607                 }
 608
 609                 /* Print message */
 610                 if (!BootStringCount) {
 611                         /* set display flag to TRUE so that */
 612                         /* we only display this string ONCE */
 613                         BootStringCount = SK_TRUE;
 614 #ifdef SK98_INFO
 615                         printk("%s\n", BootString);
 616 #endif
 617                 }
 618
 619                 memset(pNet->pAC, 0, sizeof(SK_AC));
 620                 pAC = pNet->pAC;
 621 #if 0
 622                 pAC->PciDev = pdev;
 623                 pAC->PciDevId = pdev->device;
 624                 pAC->dev[0] = dev;
 625                 pAC->dev[1] = dev;
 626 #else
 627                 pAC->PciDev = devno;
 628                 ret_dev[0] = pAC->dev[0] = dev;
 629                 ret_dev[1] = pAC->dev[1] = dev;
 630 #endif
 631                 sprintf(pAC->Name, "SysKonnect SK-98xx");
 632                 pAC->CheckQueue = SK_FALSE;
 633
 634                 pNet->Mtu = 1500;
 635                 pNet->Up = 0;
 636 #if 0
 637                 dev->irq = pdev->irq;
 638
 639                 dev->open =             &SkGeOpen;
 640                 dev->stop =             &SkGeClose;
 641                 dev->hard_start_xmit =  &SkGeXmit;
 642                 dev->get_stats =        &SkGeStats;
 643                 dev->set_multicast_list = &SkGeSetRxMode;
 644                 dev->set_mac_address =  &SkGeSetMacAddr;
 645                 dev->do_ioctl =         &SkGeIoctl;
 646                 dev->change_mtu =       &SkGeChangeMtu;
 647                 dev->flags &=           ~IFF_RUNNING;
 648 #endif
 649
 650 #ifdef SK_ZEROCOPY
 651                 if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
 652                         /* Use only if yukon hardware */
 653                         /* SK and ZEROCOPY - fly baby... */
 654                         dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
 655                 }
 656 #endif
 657
 658 #if 0
 659                 /*
 660                  * Dummy value.
 661                  */
 662                 dev->base_addr = 42;
 663                 pci_set_master(pdev);
 664
 665                 pci_set_master(pdev);
 666                 base_address = pci_resource_start (pdev, 0);
 667 #else
 668                 pci_write_config_dword(devno,
 669                                        PCI_COMMAND,
 670                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
 671                 pci_read_config_dword (devno, PCI_BASE_ADDRESS_0,
 672                                        &base_address);
 673 #endif
 674
 675 #ifdef SK_BIG_ENDIAN
 676                 /*
 677                  * On big endian machines, we use the adapter's aibility of
 678                  * reading the descriptors as big endian.
 679                  */
 680                 {
 681                 SK_U32          our2;
 682                         SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
 683                         our2 |= PCI_REV_DESC;
 684                         SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
 685                 }
 686 #endif
 687
 688                 /*
 689                  * Remap the regs into kernel space.
 690                  */
 691 #if 0
 692                 pAC->IoBase = (char*)ioremap(base_address, 0x4000);
 693 #else
 694                 pAC->IoBase = (char*)pci_mem_to_phys(devno, base_address);
 695 #endif
 696
 697                 if (!pAC->IoBase){
 698                         printk(KERN_ERR "%s:  Unable to map I/O register, "
 699                                "SK 98xx No. %i will be disabled.\n",
 700                                dev->name, boards_found);
 701                         kfree(dev);
 702                         break;
 703                 }
 704
 705                 pAC->Index = boards_found;
 706                 if (SkGeBoardInit(dev, pAC)) {
 707                         FreeResources(dev);
 708                         kfree(dev);
 709                         continue;
 710                 }
 711
 712 #if 0
 713                 memcpy((caddr_t) &dev->dev_addr,
 714                         (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6);
 715 #else
 716                 memcpy((caddr_t) &dev->enetaddr,
 717                         (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6);
 718 #endif
 719
 720 #if 0
 721                 /* First adapter... Create proc and print message */
 722                 if (!DeviceFound) {
 723                         DeviceFound = SK_TRUE;
 724                         SK_MEMCPY(&SK_Root_Dir_entry, BootString,
 725                                 sizeof(SK_Root_Dir_entry) - 1);
 726
 727                         /*Create proc (directory)*/
 728                         if(!proc_root_initialized) {
 729                                 pSkRootDir = create_proc_entry(SK_Root_Dir_entry,
 730                                         S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO, proc_net);
 731                                 proc_root_initialized = 1;
 732                         }
 733
 734                         pSkRootDir->owner = THIS_MODULE;
 735                 }
 736
 737
 738                 /* Create proc file */
 739                 pProcFile = create_proc_entry(dev->name,
 740                         S_IFREG | S_IXUSR | S_IWGRP | S_IROTH,
 741                         pSkRootDir);
 742
 743
 744                 pProcFile->read_proc = proc_read;
 745                 pProcFile->write_proc = NULL;
 746                 pProcFile->nlink = 1;
 747                 pProcFile->size = sizeof(dev->name + 1);
 748                 pProcFile->data = (void *)pProcFile;
 749 #endif
 750
 751                 pNet->PortNr = 0;
 752                 pNet->NetNr = 0;
 753
 754 #ifdef SK_ZEROCOPY
 755                         if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
 756                                 /* SG and ZEROCOPY - fly baby... */
 757                                 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
 758                         }
 759 #endif
 760
 761                 boards_found++;
 762
 763                 /* More then one port found */
 764                 if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) {
 765 #if 0
 766                         if ((dev = init_etherdev(NULL, sizeof(DEV_NET))) == 0) {
 767                                 printk(KERN_ERR "Unable to allocate etherdev "
 768                                         "structure!\n");
 769                                 break;
 770                         }
 771 #else
 772                         dev = malloc (sizeof *dev);
 773                         memset(dev, 0, sizeof(*dev));
 774                         dev->priv = malloc(sizeof(DEV_NET));
 775 #endif
 776
 777                         pAC->dev[1] = dev;
 778                         pNet = dev->priv;
 779                         pNet->PortNr = 1;
 780                         pNet->NetNr = 1;
 781                         pNet->pAC = pAC;
 782                         pNet->Mtu = 1500;
 783                         pNet->Up = 0;
 784
 785 #if 0
 786                         dev->open =             &SkGeOpen;
 787                         dev->stop =             &SkGeClose;
 788                         dev->hard_start_xmit =  &SkGeXmit;
 789                         dev->get_stats =        &SkGeStats;
 790                         dev->set_multicast_list = &SkGeSetRxMode;
 791                         dev->set_mac_address =  &SkGeSetMacAddr;
 792                         dev->do_ioctl =         &SkGeIoctl;
 793                         dev->change_mtu =       &SkGeChangeMtu;
 794                         dev->flags &=           ~IFF_RUNNING;
 795 #endif
 796
 797 #ifdef SK_ZEROCOPY
 798                         if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
 799                                 /* SG and ZEROCOPY - fly baby... */
 800                                 dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
 801                         }
 802 #endif
 803
 804 #if 0
 805                         pProcFile = create_proc_entry(dev->name,
 806                                 S_IFREG | S_IXUSR | S_IWGRP | S_IROTH,
 807                                 pSkRootDir);
 808
 809
 810                         pProcFile->read_proc = proc_read;
 811                         pProcFile->write_proc = NULL;
 812                         pProcFile->nlink = 1;
 813                         pProcFile->size = sizeof(dev->name + 1);
 814                         pProcFile->data = (void *)pProcFile;
 815 #endif
 816
 817 #if 0
 818                         memcpy((caddr_t) &dev->dev_addr,
 819                         (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6);
 820 #else
 821                         memcpy((caddr_t) &dev->enetaddr,
 822                         (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6);
 823 #endif
 824
 825                         printk("%s: %s\n", dev->name, pAC->DeviceStr);
 826                         printk("      PrefPort:B  RlmtMode:Dual Check Link State\n");
 827
 828                 }
 829
 830
 831                 /* Save the hardware revision */
 832                 pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) +
 833                         (pAC->GIni.GIPciHwRev & 0x0F);
 834
 835                 /*
 836                  * This is bollocks, but we need to tell the net-init
 837                  * code that it shall go for the next device.
 838                  */
 839 #if 0
 840 #ifndef MODULE
 841                 dev->base_addr = 0;
 842 #endif
 843 #endif
 844         }
 845
 846         /*
 847          * If we're at this point we're going through skge_probe() for
 848          * the first time.  Return success (0) if we've initialized 1
 849          * or more boards. Otherwise, return failure (-ENODEV).
 850          */
 851
 852         return boards_found;
 853 } /* skge_probe */
 854
 855
 856 /*****************************************************************************
 857  *
 858  *      FreeResources - release resources allocated for adapter
 859  *
 860  * Description:
 861  *      This function releases the IRQ, unmaps the IO and
 862  *      frees the desriptor ring.
 863  *
 864  * Returns: N/A
 865  *
 866  */
 867 static void FreeResources(struct SK_NET_DEVICE *dev)
 868 {
 869 SK_U32 AllocFlag;
 870 DEV_NET         *pNet;
 871 SK_AC           *pAC;
 872
 873         if (dev->priv) {
 874                 pNet = (DEV_NET*) dev->priv;
 875                 pAC = pNet->pAC;
 876                 AllocFlag = pAC->AllocFlag;
 877 #if 0
 878                 if (AllocFlag & SK_ALLOC_IRQ) {
 879                         free_irq(dev->irq, dev);
 880                 }
 881                 if (pAC->IoBase) {
 882                         iounmap(pAC->IoBase);
 883                 }
 884 #endif
 885                 if (pAC->pDescrMem) {
 886                         BoardFreeMem(pAC);
 887                 }
 888         }
 889
 890 } /* FreeResources */
 891
 892 #if 0
 893 MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
 894 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
 895 MODULE_LICENSE("GPL");
 896 MODULE_PARM(Speed_A,    "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 897 MODULE_PARM(Speed_B,    "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 898 MODULE_PARM(AutoNeg_A,  "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 899 MODULE_PARM(AutoNeg_B,  "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 900 MODULE_PARM(DupCap_A,   "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 901 MODULE_PARM(DupCap_B,   "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 902 MODULE_PARM(FlowCtrl_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 903 MODULE_PARM(FlowCtrl_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 904 MODULE_PARM(Role_A,         "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 905 MODULE_PARM(Role_B,         "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 906 MODULE_PARM(PrefPort,   "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 907 MODULE_PARM(RlmtMode,   "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
 908 /* not used, just there because every driver should have them: */
 909 MODULE_PARM(options,    "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "i");
 910 MODULE_PARM(debug,      "i");
 911 #endif
 912
 913
 914 #ifdef LINK_SPEED_A
 915 static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED_A;
 916 #else
 917 static char *Speed_A[SK_MAX_CARD_PARAM] = {"", };
 918 #endif
 919
 920 #ifdef LINK_SPEED_B
 921 static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED_B;
 922 #else
 923 static char *Speed_B[SK_MAX_CARD_PARAM] = {"", };
 924 #endif
 925
 926 #ifdef AUTO_NEG_A
 927 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
 928 #else
 929 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
 930 #endif
 931
 932 #ifdef DUP_CAP_A
 933 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
 934 #else
 935 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
 936 #endif
 937
 938 #ifdef FLOW_CTRL_A
 939 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
 940 #else
 941 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
 942 #endif
 943
 944 #ifdef ROLE_A
 945 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
 946 #else
 947 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
 948 #endif
 949
 950 #ifdef AUTO_NEG_B
 951 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
 952 #else
 953 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
 954 #endif
 955
 956 #ifdef DUP_CAP_B
 957 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
 958 #else
 959 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
 960 #endif
 961
 962 #ifdef FLOW_CTRL_B
 963 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
 964 #else
 965 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
 966 #endif
 967
 968 #ifdef ROLE_B
 969 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
 970 #else
 971 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
 972 #endif
 973
 974 #ifdef PREF_PORT
 975 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
 976 #else
 977 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
 978 #endif
 979
 980 #ifdef RLMT_MODE
 981 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
 982 #else
 983 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
 984 #endif
 985
 986 #if 0
 987 static int debug = 0; /* not used */
 988 static int options[SK_MAX_CARD_PARAM] = {0, }; /* not used */
 989
 990
 991 /*****************************************************************************
 992  *
 993  *      skge_init_module - module initialization function
 994  *
 995  * Description:
 996  *      Very simple, only call skge_probe and return approriate result.
 997  *
 998  * Returns:
 999  *      0, if everything is ok
1000  *      !=0, on error
1001  */
1002 static int __init skge_init_module(void)
1003 {
1004         int cards;
1005         SkGeRootDev = NULL;
1006
1007         /* just to avoid warnings ... */
1008         debug = 0;
1009         options[0] = 0;
1010
1011         cards = skge_probe();
1012         if (cards == 0) {
1013                 printk("sk98lin: No adapter found.\n");
1014         }
1015         return cards ? 0 : -ENODEV;
1016 } /* skge_init_module */
1017
1018
1019 /*****************************************************************************
1020  *
1021  *      skge_cleanup_module - module unload function
1022  *
1023  * Description:
1024  *      Disable adapter if it is still running, free resources,
1025  *      free device struct.
1026  *
1027  * Returns: N/A
1028  */
1029 static void __exit skge_cleanup_module(void)
1030 {
1031 DEV_NET         *pNet;
1032 SK_AC           *pAC;
1033 struct SK_NET_DEVICE *next;
1034 unsigned long Flags;
1035 SK_EVPARA EvPara;
1036
1037         while (SkGeRootDev) {
1038                 pNet = (DEV_NET*) SkGeRootDev->priv;
1039                 pAC = pNet->pAC;
1040                 next = pAC->Next;
1041
1042                 netif_stop_queue(SkGeRootDev);
1043                 SkGeYellowLED(pAC, pAC->IoBase, 0);
1044
1045                 if(pAC->BoardLevel == 2) {
1046                         /* board is still alive */
1047                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1048                         EvPara.Para32[0] = 0;
1049                         EvPara.Para32[1] = -1;
1050                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1051                         EvPara.Para32[0] = 1;
1052                         EvPara.Para32[1] = -1;
1053                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1054                         SkEventDispatcher(pAC, pAC->IoBase);
1055                         /* disable interrupts */
1056                         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1057                         SkGeDeInit(pAC, pAC->IoBase);
1058                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1059                         pAC->BoardLevel = 0;
1060                         /* We do NOT check here, if IRQ was pending, of course*/
1061                 }
1062
1063                 if(pAC->BoardLevel == 1) {
1064                         /* board is still alive */
1065                         SkGeDeInit(pAC, pAC->IoBase);
1066                         pAC->BoardLevel = 0;
1067                 }
1068
1069                 if ((pAC->GIni.GIMacsFound == 2) && pAC->RlmtNets == 2){
1070                         unregister_netdev(pAC->dev[1]);
1071                         kfree(pAC->dev[1]);
1072                 }
1073
1074                 FreeResources(SkGeRootDev);
1075
1076                 SkGeRootDev->get_stats = NULL;
1077                 /*
1078                  * otherwise unregister_netdev calls get_stats with
1079                  * invalid IO ...  :-(
1080                  */
1081                 unregister_netdev(SkGeRootDev);
1082                 kfree(SkGeRootDev);
1083                 kfree(pAC);
1084                 SkGeRootDev = next;
1085         }
1086
1087         /* clear proc-dir */
1088         remove_proc_entry(pSkRootDir->name, proc_net);
1089
1090 } /* skge_cleanup_module */
1091
1092 module_init(skge_init_module);
1093 module_exit(skge_cleanup_module);
1094 #endif
1095
1096
1097 /*****************************************************************************
1098  *
1099  *      SkGeBoardInit - do level 0 and 1 initialization
1100  *
1101  * Description:
1102  *      This function prepares the board hardware for running. The desriptor
1103  *      ring is set up, the IRQ is allocated and the configuration settings
1104  *      are examined.
1105  *
1106  * Returns:
1107  *      0, if everything is ok
1108  *      !=0, on error
1109  */
1110 static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC)
1111 {
1112 short   i;
1113 unsigned long Flags;
1114 char    *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
1115 char    *VerStr = VER_STRING;
1116 #if 0
1117 int     Ret;                    /* return code of request_irq */
1118 #endif
1119 SK_BOOL DualNet;
1120
1121         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1122                 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
1123         for (i=0; i<SK_MAX_MACS; i++) {
1124                 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
1125                 pAC->TxPort[i][0].PortIndex = i;
1126                 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
1127                 pAC->RxPort[i].PortIndex = i;
1128         }
1129
1130         /* Initialize the mutexes */
1131         for (i=0; i<SK_MAX_MACS; i++) {
1132                 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
1133                 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
1134         }
1135         spin_lock_init(&pAC->SlowPathLock);
1136
1137         /* level 0 init common modules here */
1138
1139         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1140         /* Does a RESET on board ...*/
1141         if (SkGeInit(pAC, pAC->IoBase, 0) != 0) {
1142                 printk("HWInit (0) failed.\n");
1143                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1144                 return(-EAGAIN);
1145         }
1146         SkI2cInit(  pAC, pAC->IoBase, 0);
1147         SkEventInit(pAC, pAC->IoBase, 0);
1148         SkPnmiInit( pAC, pAC->IoBase, 0);
1149         SkAddrInit( pAC, pAC->IoBase, 0);
1150         SkRlmtInit( pAC, pAC->IoBase, 0);
1151         SkTimerInit(pAC, pAC->IoBase, 0);
1152
1153         pAC->BoardLevel = 0;
1154         pAC->RxBufSize = ETH_BUF_SIZE;
1155
1156         SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
1157         SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
1158
1159         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1160
1161         /* level 1 init common modules here (HW init) */
1162         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1163         if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1164                 printk("HWInit (1) failed.\n");
1165                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1166                 return(-EAGAIN);
1167         }
1168         SkI2cInit(  pAC, pAC->IoBase, 1);
1169         SkEventInit(pAC, pAC->IoBase, 1);
1170         SkPnmiInit( pAC, pAC->IoBase, 1);
1171         SkAddrInit( pAC, pAC->IoBase, 1);
1172         SkRlmtInit( pAC, pAC->IoBase, 1);
1173         SkTimerInit(pAC, pAC->IoBase, 1);
1174
1175         GetConfiguration(pAC);
1176         if (pAC->RlmtNets == 2) {
1177                 pAC->GIni.GIPortUsage = SK_MUL_LINK;
1178         }
1179
1180         pAC->BoardLevel = 1;
1181         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1182
1183 #if 0
1184         if (pAC->GIni.GIMacsFound == 2) {
1185                  Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
1186         } else if (pAC->GIni.GIMacsFound == 1) {
1187                 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
1188                         pAC->Name, dev);
1189         } else {
1190                 printk(KERN_WARNING "%s: Illegal number of ports: %d\n",
1191                        dev->name, pAC->GIni.GIMacsFound);
1192                 return -EAGAIN;
1193         }
1194
1195         if (Ret) {
1196                 printk(KERN_WARNING "%s: Requested IRQ %d is busy.\n",
1197                        dev->name, dev->irq);
1198                 return -EAGAIN;
1199         }
1200 #endif
1201         pAC->AllocFlag |= SK_ALLOC_IRQ;
1202
1203         /* Alloc memory for this board (Mem for RxD/TxD) : */
1204         if(!BoardAllocMem(pAC)) {
1205                 printk("No memory for descriptor rings.\n");
1206                 return(-EAGAIN);
1207         }
1208
1209         SkCsSetReceiveFlags(pAC,
1210                 SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP,
1211                 &pAC->CsOfs1, &pAC->CsOfs2, 0);
1212         pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
1213
1214         BoardInitMem(pAC);
1215 #if 0
1216         SetQueueSizes(pAC);
1217 #else
1218         /* tschilling: New common function with minimum size check. */
1219         DualNet = SK_FALSE;
1220         if (pAC->RlmtNets == 2) {
1221                 DualNet = SK_TRUE;
1222         }
1223
1224         if (SkGeInitAssignRamToQueues(
1225                 pAC,
1226                 pAC->ActivePort,
1227                 DualNet)) {
1228                 BoardFreeMem(pAC);
1229                 printk("SkGeInitAssignRamToQueues failed.\n");
1230                 return(-EAGAIN);
1231         }
1232 #endif
1233
1234         /* Print adapter specific string from vpd */
1235         ProductStr(pAC);
1236 #ifdef SK98_INFO
1237         printk("%s: %s\n", dev->name, pAC->DeviceStr);
1238
1239         /* Print configuration settings */
1240         printk("      PrefPort:%c  RlmtMode:%s\n",
1241                 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber,
1242                 (pAC->RlmtMode==0)  ? "Check Link State" :
1243                 ((pAC->RlmtMode==1) ? "Check Link State" :
1244                 ((pAC->RlmtMode==3) ? "Check Local Port" :
1245                 ((pAC->RlmtMode==7) ? "Check Segmentation" :
1246                 ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error")))));
1247 #endif
1248
1249         SkGeYellowLED(pAC, pAC->IoBase, 1);
1250
1251         /*
1252          * Register the device here
1253          */
1254         pAC->Next = SkGeRootDev;
1255         SkGeRootDev = dev;
1256
1257         return (0);
1258 } /* SkGeBoardInit */
1259
1260
1261 /*****************************************************************************
1262  *
1263  *      BoardAllocMem - allocate the memory for the descriptor rings
1264  *
1265  * Description:
1266  *      This function allocates the memory for all descriptor rings.
1267  *      Each ring is aligned for the desriptor alignment and no ring
1268  *      has a 4 GByte boundary in it (because the upper 32 bit must
1269  *      be constant for all descriptiors in one rings).
1270  *
1271  * Returns:
1272  *      SK_TRUE, if all memory could be allocated
1273  *      SK_FALSE, if not
1274  */
1275 static SK_BOOL BoardAllocMem(
1276 SK_AC   *pAC)
1277 {
1278 caddr_t         pDescrMem;      /* pointer to descriptor memory area */
1279 size_t          AllocLength;    /* length of complete descriptor area */
1280 int             i;              /* loop counter */
1281 unsigned long   BusAddr;
1282
1283
1284         /* rings plus one for alignment (do not cross 4 GB boundary) */
1285         /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
1286 #if (BITS_PER_LONG == 32)
1287         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
1288 #else
1289         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
1290                 + RX_RING_SIZE + 8;
1291 #endif
1292
1293         pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength,
1294                                          &pAC->pDescrMemDMA);
1295
1296         if (pDescrMem == NULL) {
1297                 return (SK_FALSE);
1298         }
1299         pAC->pDescrMem = pDescrMem;
1300         BusAddr = (unsigned long) pAC->pDescrMemDMA;
1301
1302         /* Descriptors need 8 byte alignment, and this is ensured
1303          * by pci_alloc_consistent.
1304          */
1305         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1306                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1307                         ("TX%d/A: pDescrMem: %lX,   PhysDescrMem: %lX\n",
1308                         i, (unsigned long) pDescrMem,
1309                         BusAddr));
1310                 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
1311                 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
1312                 pDescrMem += TX_RING_SIZE;
1313                 BusAddr += TX_RING_SIZE;
1314
1315                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1316                         ("RX%d: pDescrMem: %lX,   PhysDescrMem: %lX\n",
1317                         i, (unsigned long) pDescrMem,
1318                         (unsigned long)BusAddr));
1319                 pAC->RxPort[i].pRxDescrRing = pDescrMem;
1320                 pAC->RxPort[i].VRxDescrRing = BusAddr;
1321                 pDescrMem += RX_RING_SIZE;
1322                 BusAddr += RX_RING_SIZE;
1323         } /* for */
1324
1325         return (SK_TRUE);
1326 } /* BoardAllocMem */
1327
1328
1329 /****************************************************************************
1330  *
1331  *      BoardFreeMem - reverse of BoardAllocMem
1332  *
1333  * Description:
1334  *      Free all memory allocated in BoardAllocMem: adapter context,
1335  *      descriptor rings, locks.
1336  *
1337  * Returns:     N/A
1338  */
1339 static void BoardFreeMem(
1340 SK_AC           *pAC)
1341 {
1342 size_t          AllocLength;    /* length of complete descriptor area */
1343
1344         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1345                 ("BoardFreeMem\n"));
1346 #if (BITS_PER_LONG == 32)
1347         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
1348 #else
1349         AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
1350                 + RX_RING_SIZE + 8;
1351 #endif
1352
1353         pci_free_consistent(pAC->PciDev, AllocLength,
1354                             pAC->pDescrMem, pAC->pDescrMemDMA);
1355         pAC->pDescrMem = NULL;
1356 } /* BoardFreeMem */
1357
1358
1359 /*****************************************************************************
1360  *
1361  *      BoardInitMem - initiate the descriptor rings
1362  *
1363  * Description:
1364  *      This function sets the descriptor rings up in memory.
1365  *      The adapter is initialized with the descriptor start addresses.
1366  *
1367  * Returns:     N/A
1368  */
1369 static void BoardInitMem(
1370 SK_AC   *pAC)   /* pointer to adapter context */
1371 {
1372 int     i;              /* loop counter */
1373 int     RxDescrSize;    /* the size of a rx descriptor rounded up to alignment*/
1374 int     TxDescrSize;    /* the size of a tx descriptor rounded up to alignment*/
1375
1376         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1377                 ("BoardInitMem\n"));
1378
1379         RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
1380         pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
1381         TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
1382         pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
1383
1384         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1385                 TXD **txd_head, **txd_tail, **txd_prev;
1386
1387                 txd_head = &pAC->TxPort[i][0].pTxdRingHead;
1388                 txd_tail = &pAC->TxPort[i][0].pTxdRingTail;
1389                 txd_prev = &pAC->TxPort[i][0].pTxdRingPrev;
1390
1391                 SetupRing(
1392                         pAC,
1393                         pAC->TxPort[i][0].pTxDescrRing,
1394                         pAC->TxPort[i][0].VTxDescrRing,
1395                         (RXD**)txd_head,
1396                         (RXD**)txd_tail,
1397                         (RXD**)txd_prev,
1398                         &pAC->TxPort[i][0].TxdRingFree,
1399                         SK_TRUE);
1400                 SetupRing(
1401                         pAC,
1402                         pAC->RxPort[i].pRxDescrRing,
1403                         pAC->RxPort[i].VRxDescrRing,
1404                         &pAC->RxPort[i].pRxdRingHead,
1405                         &pAC->RxPort[i].pRxdRingTail,
1406                         &pAC->RxPort[i].pRxdRingPrev,
1407                         &pAC->RxPort[i].RxdRingFree,
1408                         SK_FALSE);
1409         }
1410 } /* BoardInitMem */
1411
1412
1413 /*****************************************************************************
1414  *
1415  *      SetupRing - create one descriptor ring
1416  *
1417  * Description:
1418  *      This function creates one descriptor ring in the given memory area.
1419  *      The head, tail and number of free descriptors in the ring are set.
1420  *
1421  * Returns:
1422  *      none
1423  */
1424 static void SetupRing(
1425 SK_AC           *pAC,
1426 void            *pMemArea,      /* a pointer to the memory area for the ring */
1427 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
1428 RXD             **ppRingHead,   /* address where the head should be written */
1429 RXD             **ppRingTail,   /* address where the tail should be written */
1430 RXD             **ppRingPrev,   /* address where the tail should be written */
1431 int             *pRingFree,     /* address where the # of free descr. goes */
1432 SK_BOOL         IsTx)           /* flag: is this a tx ring */
1433 {
1434 int     i;              /* loop counter */
1435 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
1436 int     DescrNum;       /* number of descriptors per ring */
1437 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
1438 RXD     *pNextDescr;    /* pointer to the next descriptor */
1439 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
1440 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
1441
1442         if (IsTx == SK_TRUE) {
1443                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
1444                         DESCR_ALIGN;
1445                 DescrNum = TX_RING_SIZE / DescrSize;
1446         } else {
1447                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
1448                         DESCR_ALIGN;
1449                 DescrNum = RX_RING_SIZE / DescrSize;
1450         }
1451
1452         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1453                 ("Descriptor size: %d   Descriptor Number: %d\n",
1454                 DescrSize,DescrNum));
1455
1456         pDescr = (RXD*) pMemArea;
1457         pPrevDescr = NULL;
1458         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1459         VNextDescr = VMemArea + DescrSize;
1460         for(i=0; i<DescrNum; i++) {
1461                 /* set the pointers right */
1462                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
1463                 pDescr->pNextRxd = pNextDescr;
1464                 pDescr->TcpSumStarts = pAC->CsOfs;
1465
1466                 /* advance one step */
1467                 pPrevDescr = pDescr;
1468                 pDescr = pNextDescr;
1469                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1470                 VNextDescr += DescrSize;
1471         }
1472         pPrevDescr->pNextRxd = (RXD*) pMemArea;
1473         pPrevDescr->VNextRxd = VMemArea;
1474         pDescr = (RXD*) pMemArea;
1475         *ppRingHead = (RXD*) pMemArea;
1476         *ppRingTail = *ppRingHead;
1477         *ppRingPrev = pPrevDescr;
1478         *pRingFree = DescrNum;
1479 } /* SetupRing */
1480
1481
1482 /*****************************************************************************
1483  *
1484  *      PortReInitBmu - re-initiate the descriptor rings for one port
1485  *
1486  * Description:
1487  *      This function reinitializes the descriptor rings of one port
1488  *      in memory. The port must be stopped before.
1489  *      The HW is initialized with the descriptor start addresses.
1490  *
1491  * Returns:
1492  *      none
1493  */
1494 static void PortReInitBmu(
1495 SK_AC   *pAC,           /* pointer to adapter context */
1496 int     PortIndex)      /* index of the port for which to re-init */
1497 {
1498         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1499                 ("PortReInitBmu "));
1500
1501         /* set address of first descriptor of ring in BMU */
1502         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1503                 TX_Q_CUR_DESCR_LOW,
1504                 (uint32_t)(((caddr_t)
1505                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1506                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1507                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
1508                 0xFFFFFFFF));
1509         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1510                 TX_Q_DESCR_HIGH,
1511                 (uint32_t)(((caddr_t)
1512                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1513                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1514                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
1515         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CUR_DESCR_LOW,
1516                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1517                 pAC->RxPort[PortIndex].pRxDescrRing +
1518                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
1519         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH,
1520                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1521                 pAC->RxPort[PortIndex].pRxDescrRing +
1522                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
1523 } /* PortReInitBmu */
1524
1525
1526 /****************************************************************************
1527  *
1528  *      SkGeIsr - handle adapter interrupts
1529  *
1530  * Description:
1531  *      The interrupt routine is called when the network adapter
1532  *      generates an interrupt. It may also be called if another device
1533  *      shares this interrupt vector with the driver.
1534  *
1535  * Returns: N/A
1536  *
1537  */
1538 #if 0
1539 static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1540 #else
1541 void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1542 #endif
1543 {
1544 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1545 DEV_NET         *pNet;
1546 SK_AC           *pAC;
1547 SK_U32          IntSrc;         /* interrupts source register contents */
1548
1549         pNet = (DEV_NET*) dev->priv;
1550         pAC = pNet->pAC;
1551
1552         /*
1553          * Check and process if its our interrupt
1554          */
1555         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1556         if (IntSrc == 0) {
1557                 return;
1558         }
1559
1560         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1561 #if 0 /* software irq currently not used */
1562                 if (IntSrc & IRQ_SW) {
1563                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1564                                 SK_DBGCAT_DRV_INT_SRC,
1565                                 ("Software IRQ\n"));
1566                 }
1567 #endif
1568                 if (IntSrc & IRQ_EOF_RX1) {
1569                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1570                                 SK_DBGCAT_DRV_INT_SRC,
1571                                 ("EOF RX1 IRQ\n"));
1572                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1573                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1574                 }
1575                 if (IntSrc & IRQ_EOF_RX2) {
1576                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1577                                 SK_DBGCAT_DRV_INT_SRC,
1578                                 ("EOF RX2 IRQ\n"));
1579                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1580                         SK_PNMI_CNT_RX_INTR(pAC, 1);
1581                 }
1582 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1583                 if (IntSrc & IRQ_EOF_AS_TX1) {
1584                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1585                                 SK_DBGCAT_DRV_INT_SRC,
1586                                 ("EOF AS TX1 IRQ\n"));
1587                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1588                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1589                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1590                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1591                 }
1592                 if (IntSrc & IRQ_EOF_AS_TX2) {
1593                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1594                                 SK_DBGCAT_DRV_INT_SRC,
1595                                 ("EOF AS TX2 IRQ\n"));
1596                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1597                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1598                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
1599                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1600                 }
1601 #if 0 /* only if sync. queues used */
1602                 if (IntSrc & IRQ_EOF_SY_TX1) {
1603                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1604                                 SK_DBGCAT_DRV_INT_SRC,
1605                                 ("EOF SY TX1 IRQ\n"));
1606                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1607                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1608                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1609                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1610                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1611                 }
1612                 if (IntSrc & IRQ_EOF_SY_TX2) {
1613                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1614                                 SK_DBGCAT_DRV_INT_SRC,
1615                                 ("EOF SY TX2 IRQ\n"));
1616                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1617                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1618                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
1619                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1620                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
1621                 }
1622 #endif
1623 #endif
1624
1625                 /* do all IO at once */
1626                 if (IntSrc & IRQ_EOF_RX1)
1627                         ClearAndStartRx(pAC, 0);
1628                 if (IntSrc & IRQ_EOF_RX2)
1629                         ClearAndStartRx(pAC, 1);
1630 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1631                 if (IntSrc & IRQ_EOF_AS_TX1)
1632                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1633                 if (IntSrc & IRQ_EOF_AS_TX2)
1634                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
1635 #endif
1636                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1637         } /* while (IntSrc & IRQ_MASK != 0) */
1638
1639         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1640                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1641                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
1642                 pAC->CheckQueue = SK_FALSE;
1643                 spin_lock(&pAC->SlowPathLock);
1644                 if (IntSrc & SPECIAL_IRQS)
1645                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1646
1647                 SkEventDispatcher(pAC, pAC->IoBase);
1648                 spin_unlock(&pAC->SlowPathLock);
1649         }
1650         /*
1651          * do it all again is case we cleared an interrupt that
1652          * came in after handling the ring (OUTs may be delayed
1653          * in hardware buffers, but are through after IN)
1654          */
1655
1656         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1657         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1658
1659         if (pAC->CheckQueue) {
1660                 pAC->CheckQueue = SK_FALSE;
1661                 spin_lock(&pAC->SlowPathLock);
1662                 SkEventDispatcher(pAC, pAC->IoBase);
1663                 spin_unlock(&pAC->SlowPathLock);
1664         }
1665
1666
1667         /* IRQ is processed - Enable IRQs again*/
1668         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1669
1670         return;
1671 } /* SkGeIsr */
1672
1673
1674 /****************************************************************************
1675  *
1676  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1677  *
1678  * Description:
1679  *      The interrupt routine is called when the network adapter
1680  *      generates an interrupt. It may also be called if another device
1681  *      shares this interrupt vector with the driver.
1682  *      This is the same as above, but handles only one port.
1683  *
1684  * Returns: N/A
1685  *
1686  */
1687 #if 0
1688 static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1689 #else
1690 void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1691 #endif
1692 {
1693 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1694 DEV_NET         *pNet;
1695 SK_AC           *pAC;
1696 SK_U32          IntSrc;         /* interrupts source register contents */
1697
1698         pNet = (DEV_NET*) dev->priv;
1699         pAC = pNet->pAC;
1700
1701         /*
1702          * Check and process if its our interrupt
1703          */
1704         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1705         if (IntSrc == 0) {
1706                 return;
1707         }
1708
1709         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1710 #if 0 /* software irq currently not used */
1711                 if (IntSrc & IRQ_SW) {
1712                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1713                                 SK_DBGCAT_DRV_INT_SRC,
1714                                 ("Software IRQ\n"));
1715                 }
1716 #endif
1717                 if (IntSrc & IRQ_EOF_RX1) {
1718                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1719                                 SK_DBGCAT_DRV_INT_SRC,
1720                                 ("EOF RX1 IRQ\n"));
1721                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1722                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1723                 }
1724 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1725                 if (IntSrc & IRQ_EOF_AS_TX1) {
1726                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1727                                 SK_DBGCAT_DRV_INT_SRC,
1728                                 ("EOF AS TX1 IRQ\n"));
1729                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1730                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1731                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1732                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1733                 }
1734 #if 0 /* only if sync. queues used */
1735                 if (IntSrc & IRQ_EOF_SY_TX1) {
1736                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1737                                 SK_DBGCAT_DRV_INT_SRC,
1738                                 ("EOF SY TX1 IRQ\n"));
1739                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1740                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1741                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1742                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1743                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1744                 }
1745 #endif
1746 #endif
1747
1748                 /* do all IO at once */
1749                 if (IntSrc & IRQ_EOF_RX1)
1750                         ClearAndStartRx(pAC, 0);
1751 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1752                 if (IntSrc & IRQ_EOF_AS_TX1)
1753                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1754 #endif
1755                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1756         } /* while (IntSrc & IRQ_MASK != 0) */
1757
1758         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1759                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1760                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1761                 pAC->CheckQueue = SK_FALSE;
1762                 spin_lock(&pAC->SlowPathLock);
1763                 if (IntSrc & SPECIAL_IRQS)
1764                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1765
1766                 SkEventDispatcher(pAC, pAC->IoBase);
1767                 spin_unlock(&pAC->SlowPathLock);
1768         }
1769         /*
1770          * do it all again is case we cleared an interrupt that
1771          * came in after handling the ring (OUTs may be delayed
1772          * in hardware buffers, but are through after IN)
1773          */
1774         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1775
1776         /* IRQ is processed - Enable IRQs again*/
1777         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1778
1779         return;
1780 } /* SkGeIsrOnePort */
1781
1782
1783 /****************************************************************************
1784  *
1785  *      SkGeOpen - handle start of initialized adapter
1786  *
1787  * Description:
1788  *      This function starts the initialized adapter.
1789  *      The board level variable is set and the adapter is
1790  *      brought to full functionality.
1791  *      The device flags are set for operation.
1792  *      Do all necessary level 2 initialization, enable interrupts and
1793  *      give start command to RLMT.
1794  *
1795  * Returns:
1796  *      0 on success
1797  *      != 0 on error
1798  */
1799 #if 0
1800 static int SkGeOpen(
1801 #else
1802 int SkGeOpen(
1803 #endif
1804 struct SK_NET_DEVICE    *dev)
1805 {
1806         DEV_NET                 *pNet;
1807         SK_AC                   *pAC;
1808         unsigned long   Flags;          /* for spin lock */
1809         int                             i;
1810         SK_EVPARA               EvPara;         /* an event parameter union */
1811
1812         pNet = (DEV_NET*) dev->priv;
1813         pAC = pNet->pAC;
1814
1815         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1816                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1817
1818         if (pAC->BoardLevel == 0) {
1819                 /* level 1 init common modules here */
1820                 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1821                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1822                         return (-1);
1823                 }
1824                 SkI2cInit       (pAC, pAC->IoBase, 1);
1825                 SkEventInit     (pAC, pAC->IoBase, 1);
1826                 SkPnmiInit      (pAC, pAC->IoBase, 1);
1827                 SkAddrInit      (pAC, pAC->IoBase, 1);
1828                 SkRlmtInit      (pAC, pAC->IoBase, 1);
1829                 SkTimerInit     (pAC, pAC->IoBase, 1);
1830                 pAC->BoardLevel = 1;
1831         }
1832
1833         if (pAC->BoardLevel != 2) {
1834                 /* tschilling: Level 2 init modules here, check return value. */
1835                 if (SkGeInit(pAC, pAC->IoBase, 2) != 0) {
1836                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1837                         return (-1);
1838                 }
1839                 SkI2cInit       (pAC, pAC->IoBase, 2);
1840                 SkEventInit     (pAC, pAC->IoBase, 2);
1841                 SkPnmiInit      (pAC, pAC->IoBase, 2);
1842                 SkAddrInit      (pAC, pAC->IoBase, 2);
1843                 SkRlmtInit      (pAC, pAC->IoBase, 2);
1844                 SkTimerInit     (pAC, pAC->IoBase, 2);
1845                 pAC->BoardLevel = 2;
1846         }
1847
1848         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1849                 /* Enable transmit descriptor polling. */
1850                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1851                 FillRxRing(pAC, &pAC->RxPort[i]);
1852         }
1853         SkGeYellowLED(pAC, pAC->IoBase, 1);
1854
1855 #ifdef USE_INT_MOD
1856 /* moderate only TX complete interrupts (these are not time critical) */
1857 #define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2)
1858         {
1859                 unsigned long ModBase;
1860                 ModBase = 53125000 / INTS_PER_SEC;
1861                 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
1862                 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
1863                 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
1864         }
1865 #endif
1866
1867         /* enable Interrupts */
1868         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1869         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1870
1871         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1872
1873         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1874                 EvPara.Para32[0] = pAC->RlmtNets;
1875                 EvPara.Para32[1] = -1;
1876                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1877                         EvPara);
1878                 EvPara.Para32[0] = pAC->RlmtMode;
1879                 EvPara.Para32[1] = 0;
1880                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1881                         EvPara);
1882         }
1883
1884         EvPara.Para32[0] = pNet->NetNr;
1885         EvPara.Para32[1] = -1;
1886         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1887         SkEventDispatcher(pAC, pAC->IoBase);
1888         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1889
1890         pAC->MaxPorts++;
1891         pNet->Up = 1;
1892
1893         MOD_INC_USE_COUNT;
1894
1895         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1896                 ("SkGeOpen suceeded\n"));
1897
1898         return (0);
1899 } /* SkGeOpen */
1900
1901
1902 /****************************************************************************
1903  *
1904  *      SkGeClose - Stop initialized adapter
1905  *
1906  * Description:
1907  *      Close initialized adapter.
1908  *
1909  * Returns:
1910  *      0 - on success
1911  *      error code - on error
1912  */
1913 #if 0
1914 static int SkGeClose(
1915 #else
1916 int SkGeClose(
1917 #endif
1918 struct SK_NET_DEVICE    *dev)
1919 {
1920         DEV_NET                 *pNet;
1921         SK_AC                   *pAC;
1922
1923         unsigned long   Flags;          /* for spin lock */
1924         int                             i;
1925         int                             PortIdx;
1926         SK_EVPARA               EvPara;
1927
1928         netif_stop_queue(dev);
1929         pNet = (DEV_NET*) dev->priv;
1930         pAC = pNet->pAC;
1931
1932         if (pAC->RlmtNets == 1)
1933                 PortIdx = pAC->ActivePort;
1934         else
1935                 PortIdx = pNet->NetNr;
1936
1937         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1938                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1939
1940         /*
1941          * Clear multicast table, promiscuous mode ....
1942          */
1943         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1944         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1945                 SK_PROM_MODE_NONE);
1946
1947         if (pAC->MaxPorts == 1) {
1948                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1949                 /* disable interrupts */
1950                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1951                 EvPara.Para32[0] = pNet->NetNr;
1952                 EvPara.Para32[1] = -1;
1953                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1954                 SkEventDispatcher(pAC, pAC->IoBase);
1955                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1956                 /* stop the hardware */
1957                 SkGeDeInit(pAC, pAC->IoBase);
1958                 pAC->BoardLevel = 0;
1959                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1960         } else {
1961
1962                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1963                 EvPara.Para32[0] = pNet->NetNr;
1964                 EvPara.Para32[1] = -1;
1965                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1966                 SkEventDispatcher(pAC, pAC->IoBase);
1967                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1968
1969                 /* Stop port */
1970                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1971                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1972                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1973                         SK_STOP_ALL, SK_HARD_RST);
1974                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1975                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1976         }
1977
1978         if (pAC->RlmtNets == 1) {
1979                 /* clear all descriptor rings */
1980                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1981                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1982                         ClearRxRing(pAC, &pAC->RxPort[i]);
1983                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1984                 }
1985         } else {
1986                 /* clear port descriptor rings */
1987                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1988                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1989                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1990         }
1991
1992         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1993                 ("SkGeClose: done "));
1994
1995         pAC->MaxPorts--;
1996         pNet->Up = 0;
1997         MOD_DEC_USE_COUNT;
1998
1999         return (0);
2000 } /* SkGeClose */
2001
2002
2003 /*****************************************************************************
2004  *
2005  *      SkGeXmit - Linux frame transmit function
2006  *
2007  * Description:
2008  *      The system calls this function to send frames onto the wire.
2009  *      It puts the frame in the tx descriptor ring. If the ring is
2010  *      full then, the 'tbusy' flag is set.
2011  *
2012  * Returns:
2013  *      0, if everything is ok
2014  *      !=0, on error
2015  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
2016  *      allocated skb's) !!!
2017  */
2018 #if 0
2019 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2020 #else
2021 int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2022 #endif
2023 {
2024 DEV_NET         *pNet;
2025 SK_AC           *pAC;
2026 int                     Rc;     /* return code of XmitFrame */
2027
2028         pNet = (DEV_NET*) dev->priv;
2029         pAC = pNet->pAC;
2030
2031 #if 0
2032         if ((!skb_shinfo(skb)->nr_frags) ||
2033 #else
2034         if (1 ||
2035 #endif
2036                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
2037                 /* Don't activate scatter-gather and hardware checksum */
2038
2039                 if (pAC->RlmtNets == 2)
2040                         Rc = XmitFrame(
2041                                 pAC,
2042                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2043                                 skb);
2044                 else
2045                         Rc = XmitFrame(
2046                                 pAC,
2047                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2048                                 skb);
2049         } else {
2050 #if 0
2051                 /* scatter-gather and hardware TCP checksumming anabled*/
2052                 if (pAC->RlmtNets == 2)
2053                         Rc = XmitFrameSG(
2054                                 pAC,
2055                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2056                                 skb);
2057                 else
2058                         Rc = XmitFrameSG(
2059                                 pAC,
2060                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2061                                 skb);
2062 #endif
2063         }
2064
2065         /* Transmitter out of resources? */
2066         if (Rc <= 0) {
2067                 netif_stop_queue(dev);
2068         }
2069
2070         /* If not taken, give buffer ownership back to the
2071          * queueing layer.
2072          */
2073         if (Rc < 0)
2074                 return (1);
2075
2076 #if 0
2077         dev->trans_start = jiffies;
2078 #endif
2079         return (0);
2080 } /* SkGeXmit */
2081
2082
2083 /*****************************************************************************
2084  *
2085  *      XmitFrame - fill one socket buffer into the transmit ring
2086  *
2087  * Description:
2088  *      This function puts a message into the transmit descriptor ring
2089  *      if there is a descriptors left.
2090  *      Linux skb's consist of only one continuous buffer.
2091  *      The first step locks the ring. It is held locked
2092  *      all time to avoid problems with SWITCH_../PORT_RESET.
2093  *      Then the descriptoris allocated.
2094  *      The second part is linking the buffer to the descriptor.
2095  *      At the very last, the Control field of the descriptor
2096  *      is made valid for the BMU and a start TX command is given
2097  *      if necessary.
2098  *
2099  * Returns:
2100  *      > 0 - on succes: the number of bytes in the message
2101  *      = 0 - on resource shortage: this frame sent or dropped, now
2102  *              the ring is full ( -> set tbusy)
2103  *      < 0 - on failure: other problems ( -> return failure to upper layers)
2104  */
2105 static int XmitFrame(
2106 SK_AC           *pAC,           /* pointer to adapter context */
2107 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
2108 struct sk_buff  *pMessage)      /* pointer to send-message */
2109 {
2110 TXD             *pTxd;          /* the rxd to fill */
2111 unsigned long   Flags;
2112 SK_U64          PhysAddr;
2113 int             BytesSend;
2114
2115         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
2116                 ("X"));
2117
2118         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2119 #ifndef USE_TX_COMPLETE
2120         FreeTxDescriptors(pAC, pTxPort);
2121 #endif
2122         if (pTxPort->TxdRingFree == 0) {
2123                 /* no enough free descriptors in ring at the moment */
2124                 FreeTxDescriptors(pAC, pTxPort);
2125                 if (pTxPort->TxdRingFree == 0) {
2126                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2127                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2128                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2129                                 SK_DBGCAT_DRV_TX_PROGRESS,
2130                                 ("XmitFrame failed\n"));
2131                         /* this message can not be sent now */
2132                         /* Because tbusy seems to be set, the message should not be freed here */
2133                         /* It will be used by the scheduler of the ethernet handler */
2134                         return (-1);
2135                 }
2136         }
2137         /* advance head counter behind descriptor needed for this frame */
2138         pTxd = pTxPort->pTxdRingHead;
2139         pTxPort->pTxdRingHead = pTxd->pNextTxd;
2140         pTxPort->TxdRingFree--;
2141         /* the needed descriptor is reserved now */
2142
2143         /*
2144          * everything allocated ok, so add buffer to descriptor
2145          */
2146
2147 #ifdef SK_DUMP_TX
2148         DumpMsg(pMessage, "XmitFrame");
2149 #endif
2150
2151         /* set up descriptor and CONTROL dword */
2152 #if 0
2153         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2154                 virt_to_page(pMessage->data),
2155                 ((unsigned long) pMessage->data &
2156                 ~PAGE_MASK),
2157                 pMessage->len,
2158                 PCI_DMA_TODEVICE);
2159 #else
2160         PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32) pMessage->data);
2161 #endif
2162         pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2163         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2164         pTxd->pMBuf = pMessage;
2165         pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF |
2166                 TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE |
2167 #ifdef USE_TX_COMPLETE
2168                 TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len;
2169 #else
2170                 TX_CTRL_EOF | pMessage->len;
2171 #endif
2172
2173         if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2174                 /* previous descriptor already done, so give tx start cmd */
2175                 /* StartTx(pAC, pTxPort->HwAddr); */
2176                 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2177         }
2178         pTxPort->pTxdRingPrev = pTxd;
2179
2180
2181         BytesSend = pMessage->len;
2182         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2183         /* after releasing the lock, the skb may be immidiately freed */
2184         if (pTxPort->TxdRingFree != 0)
2185                 return (BytesSend);
2186         else
2187                 return (0);
2188
2189 } /* XmitFrame */
2190
2191 /*****************************************************************************
2192  *
2193  *      XmitFrameSG - fill one socket buffer into the transmit ring
2194  *                (use SG and TCP/UDP hardware checksumming)
2195  *
2196  * Description:
2197  *      This function puts a message into the transmit descriptor ring
2198  *      if there is a descriptors left.
2199  *
2200  * Returns:
2201  *      > 0 - on succes: the number of bytes in the message
2202  *      = 0 - on resource shortage: this frame sent or dropped, now
2203  *              the ring is full ( -> set tbusy)
2204  *      < 0 - on failure: other problems ( -> return failure to upper layers)
2205  */
2206 #if 0
2207 static int XmitFrameSG(
2208 SK_AC           *pAC,                   /* pointer to adapter context */
2209 TX_PORT         *pTxPort,               /* pointer to struct of port to send to */
2210 struct sk_buff  *pMessage)      /* pointer to send-message */
2211 {
2212
2213         int             i;
2214         int                     BytesSend;
2215         int                     hlength;
2216         int                     protocol;
2217         skb_frag_t              *sk_frag;
2218         TXD                     *pTxd;
2219         TXD                     *pTxdFst;
2220         TXD                     *pTxdLst;
2221         SK_U64          PhysAddr;
2222         unsigned long   Flags;
2223
2224         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2225 #ifndef USE_TX_COMPLETE
2226         FreeTxDescriptors(pAC, pTxPort);
2227 #endif
2228         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
2229                 FreeTxDescriptors(pAC, pTxPort);
2230                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
2231                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2232                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2233                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2234                                 SK_DBGCAT_DRV_TX_PROGRESS,
2235                                 ("XmitFrameSG failed - Ring full\n"));
2236                                 /* this message can not be sent now */
2237                         return(-1);
2238                 }
2239         }
2240
2241
2242         pTxd = pTxPort->pTxdRingHead;
2243         pTxdFst = pTxd;
2244         pTxdLst = pTxd;
2245         BytesSend = 0;
2246         protocol = 0;
2247
2248         /* map first fragment (header) */
2249         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2250                         virt_to_page(pMessage->data),
2251                         ((unsigned long) pMessage->data & ~PAGE_MASK),
2252                         skb_headlen(pMessage),
2253                         PCI_DMA_TODEVICE);
2254
2255         pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2256         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2257
2258         /* HW checksum? */
2259         if (pMessage->ip_summed == CHECKSUM_HW) {
2260                 pTxd->TBControl = TX_CTRL_STF |
2261                                   TX_CTRL_ST_FWD |
2262                                   skb_headlen(pMessage);
2263
2264                 /* We have to use the opcode for tcp here because the opcode for
2265                 udp is not working in the hardware yet (revision 2.0)*/
2266                 protocol = ((SK_U8)pMessage->data[23] & 0xf);
2267                 if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2268                         pTxd->TBControl |=  BMU_UDP_CHECK;
2269                 else
2270                         pTxd->TBControl |= BMU_TCP_CHECK ;
2271
2272                 hlength = ((SK_U8)pMessage->data[14] & 0xf) * 4;
2273                 pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */
2274                 pTxd->TcpSumSt = 14+hlength+16;
2275                 pTxd->TcpSumWr = 14+hlength;
2276
2277         } else {
2278                 pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
2279                                   TX_CTRL_SOFTWARE |
2280                                   TX_CTRL_STF |
2281                                   skb_headlen(pMessage);
2282         }
2283
2284         pTxd = pTxd->pNextTxd;
2285         pTxPort->TxdRingFree--;
2286         BytesSend += skb_headlen(pMessage);
2287
2288
2289         /* Map SG fragments */
2290         for (i = 0; i < skb_shinfo(pMessage)->nr_frags; i++) {
2291                 sk_frag = &skb_shinfo(pMessage)->frags[i];
2292
2293                 /* we already have the proper value in entry */
2294                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2295                                                  sk_frag->page,
2296                                                  sk_frag->page_offset,
2297                                                  sk_frag->size,
2298                                                  PCI_DMA_TODEVICE);
2299
2300                 pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2301                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2302                 pTxd->pMBuf = pMessage;
2303
2304                 /* HW checksum */
2305                 if (pMessage->ip_summed == CHECKSUM_HW) {
2306                         pTxd->TBControl = TX_CTRL_OWN_BMU |
2307                                           TX_CTRL_SOFTWARE |
2308                                           TX_CTRL_ST_FWD;
2309
2310                         /* We have to use the opcode for tcp here because the opcode for
2311                         udp is not working in the hardware yet (revision 2.0)*/
2312                         if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2313                                 pTxd->TBControl |= BMU_UDP_CHECK ;
2314                         else
2315                                 pTxd->TBControl |= BMU_TCP_CHECK ;
2316
2317                 } else {
2318                         pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
2319                                           TX_CTRL_SOFTWARE |
2320                                           TX_CTRL_OWN_BMU;
2321                 }
2322
2323                 /* Last fragment  */
2324                 if( (i+1) == skb_shinfo(pMessage)->nr_frags )  {
2325 #ifdef USE_TX_COMPLETE
2326                         pTxd->TBControl |= TX_CTRL_EOF |
2327                                            TX_CTRL_EOF_IRQ |
2328                                            sk_frag->size;
2329 #else
2330                         pTxd->TBControl |= TX_CTRL_EOF |
2331                                            sk_frag->size;
2332 #endif
2333                         pTxdFst->TBControl |= TX_CTRL_OWN_BMU |
2334                                               TX_CTRL_SOFTWARE;
2335
2336                 } else {
2337                         pTxd->TBControl |= sk_frag->size;
2338                 }
2339                 pTxdLst = pTxd;
2340                 pTxd = pTxd->pNextTxd;
2341                 pTxPort->TxdRingFree--;
2342                 BytesSend += sk_frag->size;
2343         }
2344
2345         if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2346                 /* previous descriptor already done, so give tx start cmd */
2347                 /* StartTx(pAC, pTxPort->HwAddr); */
2348                 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2349         }
2350
2351         pTxPort->pTxdRingPrev = pTxdLst;
2352         pTxPort->pTxdRingHead = pTxd;
2353
2354         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2355
2356         if (pTxPort->TxdRingFree > 0)
2357                 return (BytesSend);
2358         else
2359                 return (0);
2360 }
2361 #endif
2362
2363
2364 void dump_frag( SK_U8 *data, int length)
2365 {
2366         int i;
2367
2368         printk("Length: %d\n", length);
2369         for( i=0; i < length; i++ ) {
2370                 printk(" %02x", (SK_U8)*(data + i) );
2371                 if( !((i+1) % 20) )
2372                   printk("\n");
2373         }
2374         printk("\n\n");
2375
2376 }
2377
2378
2379 /*****************************************************************************
2380  *
2381  *      FreeTxDescriptors - release descriptors from the descriptor ring
2382  *
2383  * Description:
2384  *      This function releases descriptors from a transmit ring if they
2385  *      have been sent by the BMU.
2386  *      If a descriptors is sent, it can be freed and the message can
2387  *      be freed, too.
2388  *      The SOFTWARE controllable bit is used to prevent running around a
2389  *      completely free ring for ever. If this bit is no set in the
2390  *      frame (by XmitFrame), this frame has never been sent or is
2391  *      already freed.
2392  *      The Tx descriptor ring lock must be held while calling this function !!!
2393  *
2394  * Returns:
2395  *      none
2396  */
2397 static void FreeTxDescriptors(
2398 SK_AC   *pAC,           /* pointer to the adapter context */
2399 TX_PORT *pTxPort)       /* pointer to destination port structure */
2400 {
2401 TXD     *pTxd;          /* pointer to the checked descriptor */
2402 TXD     *pNewTail;      /* pointer to 'end' of the ring */
2403 SK_U32  Control;        /* TBControl field of descriptor */
2404 SK_U64  PhysAddr;       /* address of DMA mapping */
2405
2406         pNewTail = pTxPort->pTxdRingTail;
2407         pTxd = pNewTail;
2408         /*
2409          * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame
2410          * or TX_CTRL_OWN_BMU bit set in any frame
2411          */
2412         while (1) {
2413                 Control = pTxd->TBControl;
2414                 if ((Control & TX_CTRL_SOFTWARE) == 0) {
2415                         /*
2416                          * software controllable bit is set in first
2417                          * fragment when given to BMU. Not set means that
2418                          * this fragment was never sent or is already
2419                          * freed ( -> ring completely free now).
2420                          */
2421                         pTxPort->pTxdRingTail = pTxd;
2422                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2423                         return;
2424                 }
2425                 if (Control & TX_CTRL_OWN_BMU) {
2426                         pTxPort->pTxdRingTail = pTxd;
2427                         if (pTxPort->TxdRingFree > 0) {
2428                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2429                         }
2430                         return;
2431                 }
2432
2433                 /* release the DMA mapping */
2434                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
2435                 PhysAddr |= (SK_U64) pTxd->VDataLow;
2436                 pci_unmap_page(pAC->PciDev, PhysAddr,
2437                                  pTxd->pMBuf->len,
2438                                  PCI_DMA_TODEVICE);
2439
2440                 if (Control & TX_CTRL_EOF)
2441                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
2442
2443                 pTxPort->TxdRingFree++;
2444                 pTxd->TBControl &= ~TX_CTRL_SOFTWARE;
2445                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
2446         } /* while(forever) */
2447 } /* FreeTxDescriptors */
2448
2449 /*****************************************************************************
2450  *
2451  *      FillRxRing - fill the receive ring with valid descriptors
2452  *
2453  * Description:
2454  *      This function fills the receive ring descriptors with data
2455  *      segments and makes them valid for the BMU.
2456  *      The active ring is filled completely, if possible.
2457  *      The non-active ring is filled only partial to save memory.
2458  *
2459  * Description of rx ring structure:
2460  *      head - points to the descriptor which will be used next by the BMU
2461  *      tail - points to the next descriptor to give to the BMU
2462  *
2463  * Returns:     N/A
2464  */
2465 static void FillRxRing(
2466 SK_AC           *pAC,           /* pointer to the adapter context */
2467 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
2468                                    should be filled */
2469 {
2470 unsigned long   Flags;
2471
2472         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2473         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
2474                 if(!FillRxDescriptor(pAC, pRxPort))
2475                         break;
2476         }
2477         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2478 } /* FillRxRing */
2479
2480
2481 /*****************************************************************************
2482  *
2483  *      FillRxDescriptor - fill one buffer into the receive ring
2484  *
2485  * Description:
2486  *      The function allocates a new receive buffer and
2487  *      puts it into the next descriptor.
2488  *
2489  * Returns:
2490  *      SK_TRUE - a buffer was added to the ring
2491  *      SK_FALSE - a buffer could not be added
2492  */
2493 static SK_BOOL FillRxDescriptor(
2494 SK_AC           *pAC,           /* pointer to the adapter context struct */
2495 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
2496 {
2497 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
2498 RXD             *pRxd;          /* the rxd to fill */
2499 SK_U16          Length;         /* data fragment length */
2500 SK_U64          PhysAddr;       /* physical address of a rx buffer */
2501
2502         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
2503         if (pMsgBlock == NULL) {
2504                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2505                         SK_DBGCAT_DRV_ENTRY,
2506                         ("%s: Allocation of rx buffer failed !\n",
2507                         pAC->dev[pRxPort->PortIndex]->name));
2508                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
2509                 return(SK_FALSE);
2510         }
2511         skb_reserve(pMsgBlock, 2); /* to align IP frames */
2512         /* skb allocated ok, so add buffer */
2513         pRxd = pRxPort->pRxdRingTail;
2514         pRxPort->pRxdRingTail = pRxd->pNextRxd;
2515         pRxPort->RxdRingFree--;
2516         Length = pAC->RxBufSize;
2517 #if 0
2518         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2519                 virt_to_page(pMsgBlock->data),
2520                 ((unsigned long) pMsgBlock->data &
2521                 ~PAGE_MASK),
2522                 pAC->RxBufSize - 2,
2523                 PCI_DMA_FROMDEVICE);
2524 #else
2525         PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32)pMsgBlock->data);
2526 #endif
2527         pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2528         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2529         pRxd->pMBuf = pMsgBlock;
2530         pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2531                 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2532         return (SK_TRUE);
2533
2534 } /* FillRxDescriptor */
2535
2536
2537 /*****************************************************************************
2538  *
2539  *      ReQueueRxBuffer - fill one buffer back into the receive ring
2540  *
2541  * Description:
2542  *      Fill a given buffer back into the rx ring. The buffer
2543  *      has been previously allocated and aligned, and its phys.
2544  *      address calculated, so this is no more necessary.
2545  *
2546  * Returns: N/A
2547  */
2548 static void ReQueueRxBuffer(
2549 SK_AC           *pAC,           /* pointer to the adapter context struct */
2550 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
2551 struct sk_buff  *pMsg,          /* pointer to the buffer */
2552 SK_U32          PhysHigh,       /* phys address high dword */
2553 SK_U32          PhysLow)        /* phys address low dword */
2554 {
2555 RXD             *pRxd;          /* the rxd to fill */
2556 SK_U16          Length;         /* data fragment length */
2557
2558         pRxd = pRxPort->pRxdRingTail;
2559         pRxPort->pRxdRingTail = pRxd->pNextRxd;
2560         pRxPort->RxdRingFree--;
2561         Length = pAC->RxBufSize;
2562         pRxd->VDataLow = PhysLow;
2563         pRxd->VDataHigh = PhysHigh;
2564         pRxd->pMBuf = pMsg;
2565         pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2566                 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2567         return;
2568 } /* ReQueueRxBuffer */
2569
2570
2571 /*****************************************************************************
2572  *
2573  *      ReceiveIrq - handle a receive IRQ
2574  *
2575  * Description:
2576  *      This function is called when a receive IRQ is set.
2577  *      It walks the receive descriptor ring and sends up all
2578  *      frames that are complete.
2579  *
2580  * Returns:     N/A
2581  */
2582 #if 0
2583 static void ReceiveIrq(
2584 #else
2585 void ReceiveIrq(
2586 #endif
2587         SK_AC           *pAC,                   /* pointer to adapter context */
2588         RX_PORT         *pRxPort,               /* pointer to receive port struct */
2589         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
2590 {
2591 RXD                             *pRxd;                  /* pointer to receive descriptors */
2592 SK_U32                  Control;                /* control field of descriptor */
2593 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
2594 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
2595 int                             FrameLength;    /* total length of received frame */
2596 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
2597 SK_EVPARA               EvPara;                 /* an event parameter union */
2598 unsigned long   Flags;                  /* for spin lock */
2599 int                             PortIndex = pRxPort->PortIndex;
2600 unsigned int    Offset;
2601 unsigned int    NumBytes;
2602 unsigned int    ForRlmt;
2603 SK_BOOL                 IsBc;
2604 SK_BOOL                 IsMc;
2605 SK_BOOL  IsBadFrame;                    /* Bad frame */
2606
2607 SK_U32                  FrameStat;
2608 unsigned short  Csum1;
2609 unsigned short  Csum2;
2610 unsigned short  Type;
2611 #if 0
2612 int                             Result;
2613 #endif
2614 SK_U64                  PhysAddr;
2615
2616 rx_start:
2617         /* do forever; exit if RX_CTRL_OWN_BMU found */
2618         for ( pRxd = pRxPort->pRxdRingHead ;
2619                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2620                   pRxd = pRxd->pNextRxd,
2621                   pRxPort->pRxdRingHead = pRxd,
2622                   pRxPort->RxdRingFree ++) {
2623
2624                 /*
2625                  * For a better understanding of this loop
2626                  * Go through every descriptor beginning at the head
2627                  * Please note: the ring might be completely received so the OWN bit
2628                  * set is not a good crirteria to leave that loop.
2629                  * Therefore the RingFree counter is used.
2630                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2631                  * to be checked next.
2632                  */
2633
2634                 Control = pRxd->RBControl;
2635
2636                 /* check if this descriptor is ready */
2637                 if ((Control & RX_CTRL_OWN_BMU) != 0) {
2638                         /* this descriptor is not yet ready */
2639                         /* This is the usual end of the loop */
2640                         /* We don't need to start the ring again */
2641                         FillRxRing(pAC, pRxPort);
2642                         return;
2643                 }
2644
2645                 /* get length of frame and check it */
2646                 FrameLength = Control & RX_CTRL_LEN_MASK;
2647                 if (FrameLength > pAC->RxBufSize) {
2648                         goto rx_failed;
2649                 }
2650
2651                 /* check for STF and EOF */
2652                 if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) !=
2653                         (RX_CTRL_STF | RX_CTRL_EOF)) {
2654                         goto rx_failed;
2655                 }
2656
2657                 /* here we have a complete frame in the ring */
2658                 pMsg = pRxd->pMBuf;
2659
2660                 FrameStat = pRxd->FrameStat;
2661
2662                 /* check for frame length mismatch */
2663 #define XMR_FS_LEN_SHIFT        18
2664 #define GMR_FS_LEN_SHIFT        16
2665                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2666                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2667                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2668                                         SK_DBGCAT_DRV_RX_PROGRESS,
2669                                         ("skge: Frame length mismatch (%u/%u).\n",
2670                                         FrameLength,
2671                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2672                                 goto rx_failed;
2673                         }
2674                 }
2675                 else {
2676                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2677                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2678                                         SK_DBGCAT_DRV_RX_PROGRESS,
2679                                         ("skge: Frame length mismatch (%u/%u).\n",
2680                                         FrameLength,
2681                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2682                                 goto rx_failed;
2683                         }
2684                 }
2685
2686                 /* Set Rx Status */
2687                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2688                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2689                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2690                         IsBadFrame = (FrameStat &
2691                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2692                 } else {
2693                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2694                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2695                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2696                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2697                 }
2698
2699                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2700                         ("Received frame of length %d on port %d\n",
2701                         FrameLength, PortIndex));
2702                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2703                         ("Number of free rx descriptors: %d\n",
2704                         pRxPort->RxdRingFree));
2705 /* DumpMsg(pMsg, "Rx"); */
2706
2707                 if ((Control & RX_CTRL_STAT_VALID) != RX_CTRL_STAT_VALID ||
2708                         (IsBadFrame)) {
2709 #if 0
2710                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2711 #endif
2712                         /* there is a receive error in this frame */
2713                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2714                                 SK_DBGCAT_DRV_RX_PROGRESS,
2715                                 ("skge: Error in received frame, dropped!\n"
2716                                 "Control: %x\nRxStat: %x\n",
2717                                 Control, FrameStat));
2718
2719                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2720                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2721                         pci_dma_sync_single(pAC->PciDev,
2722                                                 (dma_addr_t) PhysAddr,
2723                                                 FrameLength,
2724                                                 PCI_DMA_FROMDEVICE);
2725                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2726                                 pRxd->VDataHigh, pRxd->VDataLow);
2727
2728                         continue;
2729                 }
2730
2731                 /*
2732                  * if short frame then copy data to reduce memory waste
2733                  */
2734                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2735                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2736                         /*
2737                          * Short frame detected and allocation successfull
2738                          */
2739                         /* use new skb and copy data */
2740                         skb_reserve(pNewMsg, 2);
2741                         skb_put(pNewMsg, FrameLength);
2742                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2743                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2744
2745                         pci_dma_sync_single(pAC->PciDev,
2746                                                 (dma_addr_t) PhysAddr,
2747                                                 FrameLength,
2748                                                 PCI_DMA_FROMDEVICE);
2749                         eth_copy_and_sum(pNewMsg, pMsg->data,
2750                                 FrameLength, 0);
2751                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2752                                 pRxd->VDataHigh, pRxd->VDataLow);
2753                         pMsg = pNewMsg;
2754
2755                 }
2756                 else {
2757                         /*
2758                          * if large frame, or SKB allocation failed, pass
2759                          * the SKB directly to the networking
2760                          */
2761
2762                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2763                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2764
2765                         /* release the DMA mapping */
2766                         pci_unmap_single(pAC->PciDev,
2767                                          PhysAddr,
2768                                          pAC->RxBufSize - 2,
2769                                          PCI_DMA_FROMDEVICE);
2770
2771                         /* set length in message */
2772                         skb_put(pMsg, FrameLength);
2773                         /* hardware checksum */
2774                         Type = ntohs(*((short*)&pMsg->data[12]));
2775                         if (Type == 0x800) {
2776                                 Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff);
2777                                 Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
2778 #if 0
2779                                 if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) &&
2780                                         (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) ||
2781                                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
2782                                         Result = SkCsGetReceiveInfo(pAC,
2783                                                 &pMsg->data[14],
2784                                                 Csum1, Csum2, pRxPort->PortIndex);
2785                                         if (Result ==
2786                                                 SKCS_STATUS_IP_FRAGMENT ||
2787                                                 Result ==
2788                                                 SKCS_STATUS_IP_CSUM_OK ||
2789                                                 Result ==
2790                                                 SKCS_STATUS_TCP_CSUM_OK ||
2791                                                 Result ==
2792                                                 SKCS_STATUS_UDP_CSUM_OK) {
2793                                                         pMsg->ip_summed =
2794                                                         CHECKSUM_UNNECESSARY;
2795                                         } else {
2796                                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2797                                                 SK_DBGCAT_DRV_RX_PROGRESS,
2798                                                 ("skge: CRC error. Frame dropped!\n"));
2799                                                 goto rx_failed;
2800                                         }
2801                                 }/* checksumControl calculation valid */
2802 #endif
2803                         } /* IP frame */
2804                 } /* frame > SK_COPY_TRESHOLD */
2805
2806                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2807                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2808 #if 0
2809                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2810 #endif
2811                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2812                         IsBc, &Offset, &NumBytes);
2813                 if (NumBytes != 0) {
2814 #if 0
2815                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2816 #endif
2817                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2818                                 &pMsg->data[Offset],
2819                                 IsBc, IsMc, &ForRlmt);
2820                 }
2821                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2822                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2823                         /* send up only frames from active port */
2824                         if ((PortIndex == pAC->ActivePort) ||
2825                                 (pAC->RlmtNets == 2)) {
2826                                 /* frame for upper layer */
2827                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2828 #ifdef xDEBUG
2829                                 DumpMsg(pMsg, "Rx");
2830 #endif
2831                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2832                                         FrameLength, pRxPort->PortIndex);
2833
2834 #if 0
2835                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2836                                 pMsg->protocol = eth_type_trans(pMsg,
2837                                         pAC->dev[pRxPort->PortIndex]);
2838                                 netif_rx(pMsg);
2839                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2840 #else
2841                                 NetReceive(pMsg->data, pMsg->len);
2842                                 dev_kfree_skb_any(pMsg);
2843 #endif
2844                         }
2845                         else {
2846                                 /* drop frame */
2847                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2848                                         SK_DBGCAT_DRV_RX_PROGRESS,
2849                                         ("D"));
2850                                 DEV_KFREE_SKB(pMsg);
2851                         }
2852
2853                 } /* if not for rlmt */
2854                 else {
2855                         /* packet for rlmt */
2856                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2857                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2858                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2859                                 pAC->IoBase, FrameLength);
2860                         if (pRlmtMbuf != NULL) {
2861                                 pRlmtMbuf->pNext = NULL;
2862                                 pRlmtMbuf->Length = FrameLength;
2863                                 pRlmtMbuf->PortIdx = PortIndex;
2864                                 EvPara.pParaPtr = pRlmtMbuf;
2865                                 memcpy((char*)(pRlmtMbuf->pData),
2866                                            (char*)(pMsg->data),
2867                                            FrameLength);
2868
2869                                 /* SlowPathLock needed? */
2870                                 if (SlowPathLock == SK_TRUE) {
2871                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2872                                         SkEventQueue(pAC, SKGE_RLMT,
2873                                                 SK_RLMT_PACKET_RECEIVED,
2874                                                 EvPara);
2875                                         pAC->CheckQueue = SK_TRUE;
2876                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2877                                 } else {
2878                                         SkEventQueue(pAC, SKGE_RLMT,
2879                                                 SK_RLMT_PACKET_RECEIVED,
2880                                                 EvPara);
2881                                         pAC->CheckQueue = SK_TRUE;
2882                                 }
2883
2884                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2885                                         SK_DBGCAT_DRV_RX_PROGRESS,
2886                                         ("Q"));
2887                         }
2888 #if 0
2889                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2890                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2891                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2892                                 SK_RLMT_RX_PROTOCOL) {
2893                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2894                                 pMsg->protocol = eth_type_trans(pMsg,
2895                                         pAC->dev[pRxPort->PortIndex]);
2896                                 netif_rx(pMsg);
2897                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2898                         }
2899 #else
2900                         if (0) {
2901                         }
2902 #endif
2903                         else {
2904                                 DEV_KFREE_SKB(pMsg);
2905                         }
2906
2907                 } /* if packet for rlmt */
2908         } /* for ... scanning the RXD ring */
2909
2910         /* RXD ring is empty -> fill and restart */
2911         FillRxRing(pAC, pRxPort);
2912         /* do not start if called from Close */
2913         if (pAC->BoardLevel > 0) {
2914                 ClearAndStartRx(pAC, PortIndex);
2915         }
2916         return;
2917
2918 rx_failed:
2919         /* remove error frame */
2920         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2921                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2922
2923         /* release the DMA mapping */
2924
2925         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2926         PhysAddr |= (SK_U64) pRxd->VDataLow;
2927         pci_unmap_page(pAC->PciDev,
2928                          PhysAddr,
2929                          pAC->RxBufSize - 2,
2930                          PCI_DMA_FROMDEVICE);
2931         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2932         pRxd->pMBuf = NULL;
2933         pRxPort->RxdRingFree++;
2934         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2935         goto rx_start;
2936
2937 } /* ReceiveIrq */
2938
2939
2940 /*****************************************************************************
2941  *
2942  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2943  *
2944  * Description:
2945  *      This function sends a start command and a clear interrupt
2946  *      command for one receive queue to the BMU.
2947  *
2948  * Returns: N/A
2949  *      none
2950  */
2951 static void ClearAndStartRx(
2952 SK_AC   *pAC,           /* pointer to the adapter context */
2953 int     PortIndex)      /* index of the receive port (XMAC) */
2954 {
2955         SK_OUT8(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CTRL,
2956                 RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF);
2957 } /* ClearAndStartRx */
2958
2959
2960 /*****************************************************************************
2961  *
2962  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2963  *
2964  * Description:
2965  *      This function sends a clear tx IRQ command for one
2966  *      transmit queue to the BMU.
2967  *
2968  * Returns: N/A
2969  */
2970 static void ClearTxIrq(
2971 SK_AC   *pAC,           /* pointer to the adapter context */
2972 int     PortIndex,      /* index of the transmit port (XMAC) */
2973 int     Prio)           /* priority or normal queue */
2974 {
2975         SK_OUT8(pAC->IoBase, TxQueueAddr[PortIndex][Prio]+TX_Q_CTRL,
2976                 TX_Q_CTRL_CLR_I_EOF);
2977 } /* ClearTxIrq */
2978
2979
2980 /*****************************************************************************
2981  *
2982  *      ClearRxRing - remove all buffers from the receive ring
2983  *
2984  * Description:
2985  *      This function removes all receive buffers from the ring.
2986  *      The receive BMU must be stopped before calling this function.
2987  *
2988  * Returns: N/A
2989  */
2990 static void ClearRxRing(
2991 SK_AC   *pAC,           /* pointer to adapter context */
2992 RX_PORT *pRxPort)       /* pointer to rx port struct */
2993 {
2994 RXD             *pRxd;  /* pointer to the current descriptor */
2995 unsigned long   Flags;
2996 SK_U64          PhysAddr;
2997
2998         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2999                 return;
3000         }
3001         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
3002         pRxd = pRxPort->pRxdRingHead;
3003         do {
3004                 if (pRxd->pMBuf != NULL) {
3005
3006                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
3007                         PhysAddr |= (SK_U64) pRxd->VDataLow;
3008                         pci_unmap_page(pAC->PciDev,
3009                                          PhysAddr,
3010                                          pAC->RxBufSize - 2,
3011                                          PCI_DMA_FROMDEVICE);
3012                         DEV_KFREE_SKB(pRxd->pMBuf);
3013                         pRxd->pMBuf = NULL;
3014                 }
3015                 pRxd->RBControl &= RX_CTRL_OWN_BMU;
3016                 pRxd = pRxd->pNextRxd;
3017                 pRxPort->RxdRingFree++;
3018         } while (pRxd != pRxPort->pRxdRingTail);
3019         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
3020         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
3021 } /* ClearRxRing */
3022
3023
3024 /*****************************************************************************
3025  *
3026  *      ClearTxRing - remove all buffers from the transmit ring
3027  *
3028  * Description:
3029  *      This function removes all transmit buffers from the ring.
3030  *      The transmit BMU must be stopped before calling this function
3031  *      and transmitting at the upper level must be disabled.
3032  *      The BMU own bit of all descriptors is cleared, the rest is
3033  *      done by calling FreeTxDescriptors.
3034  *
3035  * Returns: N/A
3036  */
3037 static void ClearTxRing(
3038 SK_AC   *pAC,           /* pointer to adapter context */
3039 TX_PORT *pTxPort)       /* pointer to tx prt struct */
3040 {
3041 TXD             *pTxd;          /* pointer to the current descriptor */
3042 int             i;
3043 unsigned long   Flags;
3044
3045         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
3046         pTxd = pTxPort->pTxdRingHead;
3047         for (i=0; i<pAC->TxDescrPerRing; i++) {
3048                 pTxd->TBControl &= ~TX_CTRL_OWN_BMU;
3049                 pTxd = pTxd->pNextTxd;
3050         }
3051         FreeTxDescriptors(pAC, pTxPort);
3052         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
3053 } /* ClearTxRing */
3054
3055
3056 #if 0
3057 /*****************************************************************************
3058  *
3059  *      SetQueueSizes - configure the sizes of rx and tx queues
3060  *
3061  * Description:
3062  *      This function assigns the sizes for active and passive port
3063  *      to the appropriate HWinit structure variables.
3064  *      The passive port(s) get standard values, all remaining RAM
3065  *      is given to the active port.
3066  *      The queue sizes are in kbyte and must be multiple of 8.
3067  *      The limits for the number of buffers filled into the rx rings
3068  *      is also set in this routine.
3069  *
3070  * Returns:
3071  *      none
3072  */
3073 static void SetQueueSizes(
3074 SK_AC   *pAC)   /* pointer to the adapter context */
3075 {
3076 int     StandbyRam;     /* adapter RAM used for a standby port */
3077 int     RemainingRam;   /* adapter RAM available for the active port */
3078 int     RxRam;          /* RAM used for the active port receive queue */
3079 int     i;              /* loop counter */
3080
3081 if (pAC->RlmtNets == 1) {
3082         StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE +
3083                 SK_RLMT_STANDBY_QXSSIZE;
3084         RemainingRam = pAC->GIni.GIRamSize -
3085                 (pAC->GIni.GIMacsFound-1) * StandbyRam;
3086         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3087                 pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE;
3088                 pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE;
3089                 pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE;
3090         }
3091         RxRam = (RemainingRam * 8 / 10) & ~7;
3092         pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam;
3093         pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0;
3094         pAC->GIni.GP[pAC->ActivePort].PXAQSize =
3095                 (RemainingRam - RxRam) & ~7;
3096         pAC->RxQueueSize = RxRam;
3097         pAC->TxSQueueSize = 0;
3098         pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3099         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3100                 ("queue sizes settings - rx:%d  txA:%d txS:%d\n",
3101                 pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize));
3102 } else {
3103         RemainingRam = pAC->GIni.GIRamSize/pAC->GIni.GIMacsFound;
3104         RxRam = (RemainingRam * 8 / 10) & ~7;
3105         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3106                 pAC->GIni.GP[i].PRxQSize = RxRam;
3107                 pAC->GIni.GP[i].PXSQSize = 0;
3108                 pAC->GIni.GP[i].PXAQSize = (RemainingRam - RxRam) & ~7;
3109         }
3110
3111         pAC->RxQueueSize = RxRam;
3112         pAC->TxSQueueSize = 0;
3113         pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3114 }
3115         for (i=0; i<SK_MAX_MACS; i++) {
3116                 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing;
3117         }
3118
3119         if (pAC->RlmtNets == 2) {
3120                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3121                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3122                 }
3123         } else {
3124                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3125                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3126                 }
3127                 /*
3128                  * Do not set the Limit to 0, because this could cause
3129                  * wrap around with ReQueue'ed buffers (a buffer could
3130                  * be requeued in the same position, made accessable to
3131                  * the hardware, and the hardware could change its
3132                  * contents!
3133                  */
3134                 pAC->RxPort[pAC->ActivePort].RxFillLimit = 1;
3135         }
3136
3137 #ifdef DEBUG
3138         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3139                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
3140                         ("i: %d,  RxQSize: %d,  PXSQsize: %d, PXAQSize: %d\n",
3141                         i,
3142                         pAC->GIni.GP[i].PRxQSize,
3143                         pAC->GIni.GP[i].PXSQSize,
3144                         pAC->GIni.GP[i].PXAQSize));
3145         }
3146 #endif
3147 } /* SetQueueSizes */
3148
3149
3150 /*****************************************************************************
3151  *
3152  *      SkGeSetMacAddr - Set the hardware MAC address
3153  *
3154  * Description:
3155  *      This function sets the MAC address used by the adapter.
3156  *
3157  * Returns:
3158  *      0, if everything is ok
3159  *      !=0, on error
3160  */
3161 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
3162 {
3163
3164 DEV_NET *pNet = (DEV_NET*) dev->priv;
3165 SK_AC   *pAC = pNet->pAC;
3166
3167 struct sockaddr *addr = p;
3168 unsigned long   Flags;
3169
3170         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3171                 ("SkGeSetMacAddr starts now...\n"));
3172         if(netif_running(dev))
3173                 return -EBUSY;
3174
3175         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
3176
3177         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3178
3179         if (pAC->RlmtNets == 2)
3180                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
3181                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3182         else
3183                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
3184                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3185
3186
3187         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3188         return 0;
3189 } /* SkGeSetMacAddr */
3190 #endif
3191
3192
3193 /*****************************************************************************
3194  *
3195  *      SkGeSetRxMode - set receive mode
3196  *
3197  * Description:
3198  *      This function sets the receive mode of an adapter. The adapter
3199  *      supports promiscuous mode, allmulticast mode and a number of
3200  *      multicast addresses. If more multicast addresses the available
3201  *      are selected, a hash function in the hardware is used.
3202  *
3203  * Returns:
3204  *      0, if everything is ok
3205  *      !=0, on error
3206  */
3207 #if 0
3208 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
3209 {
3210
3211 DEV_NET         *pNet;
3212 SK_AC           *pAC;
3213
3214 struct dev_mc_list      *pMcList;
3215 int                     i;
3216 int                     PortIdx;
3217 unsigned long           Flags;
3218
3219         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3220                 ("SkGeSetRxMode starts now... "));
3221
3222         pNet = (DEV_NET*) dev->priv;
3223         pAC = pNet->pAC;
3224         if (pAC->RlmtNets == 1)
3225                 PortIdx = pAC->ActivePort;
3226         else
3227                 PortIdx = pNet->NetNr;
3228
3229         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3230         if (dev->flags & IFF_PROMISC) {
3231                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3232                         ("PROMISCUOUS mode\n"));
3233                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3234                         SK_PROM_MODE_LLC);
3235         } else if (dev->flags & IFF_ALLMULTI) {
3236                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3237                         ("ALLMULTI mode\n"));
3238                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3239                         SK_PROM_MODE_ALL_MC);
3240         } else {
3241                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3242                         SK_PROM_MODE_NONE);
3243                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
3244
3245                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3246                         ("Number of MC entries: %d ", dev->mc_count));
3247
3248                 pMcList = dev->mc_list;
3249                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
3250                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
3251                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
3252                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
3253                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
3254                                 pMcList->dmi_addr[0],
3255                                 pMcList->dmi_addr[1],
3256                                 pMcList->dmi_addr[2],
3257                                 pMcList->dmi_addr[3],
3258                                 pMcList->dmi_addr[4],
3259                                 pMcList->dmi_addr[5]));
3260                 }
3261                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
3262         }
3263         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3264
3265         return;
3266 } /* SkGeSetRxMode */
3267
3268
3269 /*****************************************************************************
3270  *
3271  *      SkGeChangeMtu - set the MTU to another value
3272  *
3273  * Description:
3274  *      This function sets is called whenever the MTU size is changed
3275  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
3276  *      ethernet MTU size, long frame support is activated.
3277  *
3278  * Returns:
3279  *      0, if everything is ok
3280  *      !=0, on error
3281  */
3282 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
3283 {
3284 DEV_NET         *pNet;
3285 DEV_NET         *pOtherNet;
3286 SK_AC           *pAC;
3287 unsigned long   Flags;
3288 int             i;
3289 SK_EVPARA       EvPara;
3290
3291         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3292                 ("SkGeChangeMtu starts now...\n"));
3293
3294         pNet = (DEV_NET*) dev->priv;
3295         pAC = pNet->pAC;
3296
3297         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
3298                 return -EINVAL;
3299         }
3300
3301         if(pAC->BoardLevel != 2) {
3302                 return -EINVAL;
3303         }
3304
3305         pNet->Mtu = NewMtu;
3306         pOtherNet = (DEV_NET*)pAC->dev[1 - pNet->NetNr]->priv;
3307         if ((pOtherNet->Mtu > 1500) && (NewMtu <= 1500) && (pOtherNet->Up==1)) {
3308                 return(0);
3309         }
3310
3311         EvPara.Para32[0] = pNet->NetNr;
3312         EvPara.Para32[1] = -1;
3313
3314         pAC->RxBufSize = NewMtu + 32;
3315         dev->mtu = NewMtu;
3316
3317         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3318                 ("New MTU: %d\n", NewMtu));
3319
3320         /* prevent reconfiguration while changing the MTU */
3321
3322         /* disable interrupts */
3323         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
3324         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3325
3326         /* Found more than one port */
3327         if ((pAC->GIni.GIMacsFound == 2 ) &&
3328                 (pAC->RlmtNets == 2)) {
3329                         /* Stop both ports */
3330                         EvPara.Para32[0] = 0;
3331                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3332                         EvPara.Para32[0] = 1;
3333                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3334         } else {
3335                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3336         }
3337
3338         SkEventDispatcher(pAC, pAC->IoBase);
3339
3340         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3341                 spin_lock_irqsave(
3342                         &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags);
3343                 netif_stop_queue(pAC->dev[i]);
3344
3345         }
3346
3347         /*
3348          * adjust number of rx buffers allocated
3349          */
3350         if (NewMtu > 1500) {
3351                 /* use less rx buffers */
3352                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3353                         /* Found more than one port */
3354                         if ((pAC->GIni.GIMacsFound == 2 ) &&
3355                                 (pAC->RlmtNets == 2)) {
3356                                         pAC->RxPort[i].RxFillLimit =
3357                                                 pAC->RxDescrPerRing - 100;
3358                         } else {
3359                                 if (i == pAC->ActivePort)
3360                                         pAC->RxPort[i].RxFillLimit =
3361                                                 pAC->RxDescrPerRing - 100;
3362                                 else
3363                                         pAC->RxPort[i].RxFillLimit =
3364                                                 pAC->RxDescrPerRing - 10;
3365                         }
3366                 }
3367         }
3368         else {
3369                 /* use normal amount of rx buffers */
3370                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3371                         /* Found more than one port */
3372                         if ((pAC->GIni.GIMacsFound == 2 ) &&
3373                                 (pAC->RlmtNets == 2)) {
3374                                         pAC->RxPort[i].RxFillLimit = 1;
3375                         } else {
3376                                 if (i == pAC->ActivePort)
3377                                         pAC->RxPort[i].RxFillLimit = 1;
3378                                 else
3379                                         pAC->RxPort[i].RxFillLimit =
3380                                                 pAC->RxDescrPerRing - 100;
3381                         }
3382                 }
3383         }
3384
3385         SkGeDeInit(pAC, pAC->IoBase);
3386
3387         /*
3388          * enable/disable hardware support for long frames
3389          */
3390         if (NewMtu > 1500) {
3391 /*              pAC->JumboActivated = SK_TRUE; /#* is never set back !!! */
3392                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
3393         }
3394         else {
3395                 if ((pAC->GIni.GIMacsFound == 2 ) &&
3396                         (pAC->RlmtNets == 2)) {
3397                         pAC->GIni.GIPortUsage = SK_MUL_LINK;
3398                 } else {
3399                         pAC->GIni.GIPortUsage = SK_RED_LINK;
3400                 }
3401         }
3402
3403         SkGeInit(   pAC, pAC->IoBase, 1);
3404         SkI2cInit(  pAC, pAC->IoBase, 1);
3405         SkEventInit(pAC, pAC->IoBase, 1);
3406         SkPnmiInit( pAC, pAC->IoBase, 1);
3407         SkAddrInit( pAC, pAC->IoBase, 1);
3408         SkRlmtInit( pAC, pAC->IoBase, 1);
3409         SkTimerInit(pAC, pAC->IoBase, 1);
3410
3411         /*
3412          * tschilling:
3413          * Speed and others are set back to default in level 1 init!
3414          */
3415         GetConfiguration(pAC);
3416
3417         SkGeInit(   pAC, pAC->IoBase, 2);
3418         SkI2cInit(  pAC, pAC->IoBase, 2);
3419         SkEventInit(pAC, pAC->IoBase, 2);
3420         SkPnmiInit( pAC, pAC->IoBase, 2);
3421         SkAddrInit( pAC, pAC->IoBase, 2);
3422         SkRlmtInit( pAC, pAC->IoBase, 2);
3423         SkTimerInit(pAC, pAC->IoBase, 2);
3424
3425         /*
3426          * clear and reinit the rx rings here
3427          */
3428         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3429                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
3430                 ClearRxRing(pAC, &pAC->RxPort[i]);
3431                 FillRxRing(pAC, &pAC->RxPort[i]);
3432
3433                 /* Enable transmit descriptor polling. */
3434                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
3435                 FillRxRing(pAC, &pAC->RxPort[i]);
3436         };
3437
3438         SkGeYellowLED(pAC, pAC->IoBase, 1);
3439
3440 #ifdef USE_INT_MOD
3441         {
3442                 unsigned long ModBase;
3443                 ModBase = 53125000 / INTS_PER_SEC;
3444                 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
3445                 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
3446                 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
3447         }
3448 #endif
3449
3450         netif_start_queue(pAC->dev[pNet->PortNr]);
3451         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
3452                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
3453         }
3454
3455         /* enable Interrupts */
3456         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
3457         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
3458
3459         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3460         SkEventDispatcher(pAC, pAC->IoBase);
3461
3462         /* Found more than one port */
3463         if ((pAC->GIni.GIMacsFound == 2 ) &&
3464                 (pAC->RlmtNets == 2)) {
3465                         /* Start both ports */
3466                         EvPara.Para32[0] = pAC->RlmtNets;
3467                         EvPara.Para32[1] = -1;
3468                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
3469                                 EvPara);
3470
3471
3472                         EvPara.Para32[1] = -1;
3473                         EvPara.Para32[0] = pNet->PortNr;
3474                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3475
3476                         if (pOtherNet->Up) {
3477                                 EvPara.Para32[0] = pOtherNet->PortNr;
3478                                 SkEventQueue(pAC, SKGE_RLMT,
3479                                         SK_RLMT_START, EvPara);
3480                         }
3481         } else {
3482                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3483         }
3484
3485         SkEventDispatcher(pAC, pAC->IoBase);
3486         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3487
3488         return 0;
3489 } /* SkGeChangeMtu */
3490
3491
3492 /*****************************************************************************
3493  *
3494  *      SkGeStats - return ethernet device statistics
3495  *
3496  * Description:
3497  *      This function return statistic data about the ethernet device
3498  *      to the operating system.
3499  *
3500  * Returns:
3501  *      pointer to the statistic structure.
3502  */
3503 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
3504 {
3505 DEV_NET *pNet = (DEV_NET*) dev->priv;
3506 SK_AC   *pAC = pNet->pAC;
3507 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
3508 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
3509 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
3510 unsigned int    Size;                   /* size of pnmi struct */
3511 unsigned long   Flags;                  /* for spin lock */
3512
3513         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3514                 ("SkGeStats starts now...\n"));
3515         pPnmiStruct = &pAC->PnmiStruct;
3516         memset(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
3517         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3518         Size = SK_PNMI_STRUCT_SIZE;
3519                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
3520         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3521         pPnmiStat = &pPnmiStruct->Stat[0];
3522         pPnmiConf = &pPnmiStruct->Conf[0];
3523
3524         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
3525         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
3526         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
3527         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
3528
3529         if (pNet->Mtu <= 1500) {
3530                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
3531         } else {
3532                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
3533                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
3534         }
3535
3536
3537         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
3538                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
3539
3540         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3541         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
3542         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
3543         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
3544         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3545
3546         /* detailed rx_errors: */
3547         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
3548         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3549         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
3550         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
3551         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3552         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
3553
3554         /* detailed tx_errors */
3555         pAC->stats.tx_aborted_errors = (SK_U32) 0;
3556         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3557         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
3558         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3559         pAC->stats.tx_window_errors = (SK_U32) 0;
3560
3561         return(&pAC->stats);
3562 } /* SkGeStats */
3563
3564
3565 /*****************************************************************************
3566  *
3567  *      SkGeIoctl - IO-control function
3568  *
3569  * Description:
3570  *      This function is called if an ioctl is issued on the device.
3571  *      There are three subfunction for reading, writing and test-writing
3572  *      the private MIB data structure (usefull for SysKonnect-internal tools).
3573  *
3574  * Returns:
3575  *      0, if everything is ok
3576  *      !=0, on error
3577  */
3578 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
3579 {
3580 DEV_NET         *pNet;
3581 SK_AC           *pAC;
3582
3583 SK_GE_IOCTL     Ioctl;
3584 unsigned int    Err = 0;
3585 int             Size;
3586
3587         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3588                 ("SkGeIoctl starts now...\n"));
3589
3590         pNet = (DEV_NET*) dev->priv;
3591         pAC = pNet->pAC;
3592
3593         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
3594                 return -EFAULT;
3595         }
3596
3597         switch(cmd) {
3598         case SK_IOCTL_SETMIB:
3599         case SK_IOCTL_PRESETMIB:
3600                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
3601         case SK_IOCTL_GETMIB:
3602                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
3603                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
3604                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
3605                         return -EFAULT;
3606                 }
3607                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
3608                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
3609                         Ioctl.Len<Size? Ioctl.Len : Size)) {
3610                         return -EFAULT;
3611                 }
3612                 Ioctl.Len = Size;
3613                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
3614                         return -EFAULT;
3615                 }
3616                 break;
3617         default:
3618                 Err = -EOPNOTSUPP;
3619         }
3620         return(Err);
3621 } /* SkGeIoctl */
3622
3623
3624 /*****************************************************************************
3625  *
3626  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
3627  *
3628  * Description:
3629  *      This function reads/writes the MIB data using PNMI (Private Network
3630  *      Management Interface).
3631  *      The destination for the data must be provided with the
3632  *      ioctl call and is given to the driver in the form of
3633  *      a user space address.
3634  *      Copying from the user-provided data area into kernel messages
3635  *      and back is done by copy_from_user and copy_to_user calls in
3636  *      SkGeIoctl.
3637  *
3638  * Returns:
3639  *      returned size from PNMI call
3640  */
3641 static int SkGeIocMib(
3642 DEV_NET         *pNet,  /* pointer to the adapter context */
3643 unsigned int    Size,   /* length of ioctl data */
3644 int             mode)   /* flag for set/preset */
3645 {
3646 unsigned long   Flags;  /* for spin lock */
3647 SK_AC           *pAC;
3648
3649         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3650                 ("SkGeIocMib starts now...\n"));
3651         pAC = pNet->pAC;
3652         /* access MIB */
3653         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3654         switch(mode) {
3655         case SK_IOCTL_GETMIB:
3656                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3657                         pNet->NetNr);
3658                 break;
3659         case SK_IOCTL_PRESETMIB:
3660                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3661                         pNet->NetNr);
3662                 break;
3663         case SK_IOCTL_SETMIB:
3664                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3665                         pNet->NetNr);
3666                 break;
3667         default:
3668                 break;
3669         }
3670         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3671         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3672                 ("MIB data access succeeded\n"));
3673         return (Size);
3674 } /* SkGeIocMib */
3675 #endif
3676
3677
3678 /*****************************************************************************
3679  *
3680  *      GetConfiguration - read configuration information
3681  *
3682  * Description:
3683  *      This function reads per-adapter configuration information from
3684  *      the options provided on the command line.
3685  *
3686  * Returns:
3687  *      none
3688  */
3689 static void GetConfiguration(
3690 SK_AC   *pAC)   /* pointer to the adapter context structure */
3691 {
3692 SK_I32  Port;           /* preferred port */
3693 int     LinkSpeed;      /* Link speed */
3694 int     AutoNeg;        /* auto negotiation off (0) or on (1) */
3695 int     DuplexCap;      /* duplex capabilities (0=both, 1=full, 2=half */
3696 int     MSMode;         /* master / slave mode selection */
3697 SK_BOOL AutoSet;
3698 SK_BOOL DupSet;
3699 /*
3700  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3701  *      parameter. The mapping is described by this table:
3702  *      DuplexCap ->    |       both    |       full    |       half    |
3703  *      AutoNeg         |               |               |               |
3704  *      -----------------------------------------------------------------
3705  *      Off             |    illegal    |       Full    |       Half    |
3706  *      -----------------------------------------------------------------
3707  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3708  *      -----------------------------------------------------------------
3709  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3710  */
3711 int     Capabilities[3][3] =
3712                 { {               -1, SK_LMODE_FULL,     SK_LMODE_HALF},
3713                   {SK_LMODE_AUTOBOTH, SK_LMODE_AUTOFULL, SK_LMODE_AUTOHALF},
3714                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3715 #define DC_BOTH 0
3716 #define DC_FULL 1
3717 #define DC_HALF 2
3718 #define AN_OFF  0
3719 #define AN_ON   1
3720 #define AN_SENS 2
3721
3722         /* settings for port A */
3723         /* settings link speed */
3724         LinkSpeed = SK_LSPEED_AUTO;     /* default: do auto select */
3725         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3726                 Speed_A[pAC->Index] != NULL) {
3727                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3728                         LinkSpeed = SK_LSPEED_AUTO;
3729                 }
3730                 else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3731                         LinkSpeed = SK_LSPEED_AUTO;
3732                 }
3733                 else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3734                         LinkSpeed = SK_LSPEED_10MBPS;
3735                 }
3736                 else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3737                         LinkSpeed = SK_LSPEED_100MBPS;
3738                 }
3739                 else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3740                         LinkSpeed = SK_LSPEED_1000MBPS;
3741                 }
3742                 else printk("%s: Illegal value for Speed_A\n",
3743                         pAC->dev[0]->name);
3744         }
3745
3746         /* Check speed parameter */
3747         /* Only copper type adapter and GE V2 cards */
3748         if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3749                 (pAC->GIni.GICopperType != SK_TRUE)) &&
3750                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3751                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3752                 printk("%s: Illegal value for Speed_A. "
3753                         "Not a copper card or GE V2 card\n    Using "
3754                         "speed 1000\n", pAC->dev[0]->name);
3755                 LinkSpeed = SK_LSPEED_1000MBPS;
3756         }
3757         pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3758
3759         /* Autonegotiation */
3760         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3761         AutoSet = SK_FALSE;
3762         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3763                 AutoNeg_A[pAC->Index] != NULL) {
3764                 AutoSet = SK_TRUE;
3765                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3766                         AutoSet = SK_FALSE;
3767                 }
3768                 else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3769                         AutoNeg = AN_ON;
3770                 }
3771                 else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3772                         AutoNeg = AN_OFF;
3773                 }
3774                 else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3775                         AutoNeg = AN_SENS;
3776                 }
3777                 else printk("%s: Illegal value for AutoNeg_A\n",
3778                         pAC->dev[0]->name);
3779         }
3780
3781         DuplexCap = DC_BOTH;
3782         DupSet = SK_FALSE;
3783         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3784                 DupCap_A[pAC->Index] != NULL) {
3785                 DupSet = SK_TRUE;
3786                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3787                         DupSet = SK_FALSE;
3788                 }
3789                 else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3790                         DuplexCap = DC_BOTH;
3791                 }
3792                 else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3793                         DuplexCap = DC_FULL;
3794                 }
3795                 else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3796                         DuplexCap = DC_HALF;
3797                 }
3798                 else printk("%s: Illegal value for DupCap_A\n",
3799                         pAC->dev[0]->name);
3800         }
3801
3802         /* check for illegal combinations */
3803         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3804                 printk("%s, Port A: DuplexCapabilities"
3805                         " ignored using Sense mode\n", pAC->dev[0]->name);
3806         }
3807         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3808                 printk("%s, Port A: Illegal combination"
3809                         " of values AutoNeg. and DuplexCap.\n    Using "
3810                         "Full Duplex\n", pAC->dev[0]->name);
3811
3812                 DuplexCap = DC_FULL;
3813         }
3814         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3815                 DuplexCap = DC_FULL;
3816         }
3817
3818         if (!AutoSet && DupSet) {
3819                 printk("%s, Port A: Duplex setting not"
3820                         " possible in\n    default AutoNegotiation mode"
3821                         " (Sense).\n    Using AutoNegotiation On\n",
3822                         pAC->dev[0]->name);
3823                 AutoNeg = AN_ON;
3824         }
3825
3826         /* set the desired mode */
3827         pAC->GIni.GP[0].PLinkModeConf =
3828                 Capabilities[AutoNeg][DuplexCap];
3829
3830         pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3831         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3832                 FlowCtrl_A[pAC->Index] != NULL) {
3833                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3834                 }
3835                 else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3836                         pAC->GIni.GP[0].PFlowCtrlMode =
3837                                 SK_FLOW_MODE_SYM_OR_REM;
3838                 }
3839                 else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3840                         pAC->GIni.GP[0].PFlowCtrlMode =
3841                                 SK_FLOW_MODE_SYMMETRIC;
3842                 }
3843                 else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3844                         pAC->GIni.GP[0].PFlowCtrlMode =
3845                                 SK_FLOW_MODE_LOC_SEND;
3846                 }
3847                 else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3848                         pAC->GIni.GP[0].PFlowCtrlMode =
3849                                 SK_FLOW_MODE_NONE;
3850                 }
3851                 else printk("Illegal value for FlowCtrl_A\n");
3852         }
3853         if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!=
3854                 SK_FLOW_MODE_NONE) {
3855                 printk("%s, Port A: FlowControl"
3856                         " impossible without AutoNegotiation,"
3857                         " disabled\n", pAC->dev[0]->name);
3858                 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE;
3859         }
3860
3861         MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
3862         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3863                 Role_A[pAC->Index] != NULL) {
3864                 if (strcmp(Role_A[pAC->Index],"")==0) {
3865                 }
3866                 else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3867                         MSMode = SK_MS_MODE_AUTO;
3868                 }
3869                 else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3870                         MSMode = SK_MS_MODE_MASTER;
3871                 }
3872                 else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3873                         MSMode = SK_MS_MODE_SLAVE;
3874                 }
3875                 else printk("%s: Illegal value for Role_A\n",
3876                         pAC->dev[0]->name);
3877         }
3878         pAC->GIni.GP[0].PMSMode = MSMode;
3879
3880
3881         /* settings for port B */
3882         /* settings link speed */
3883         LinkSpeed = SK_LSPEED_AUTO;     /* default: do auto select */
3884         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3885                 Speed_B[pAC->Index] != NULL) {
3886                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3887                         LinkSpeed = SK_LSPEED_AUTO;
3888                 }
3889                 else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3890                         LinkSpeed = SK_LSPEED_AUTO;
3891                 }
3892                 else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3893                         LinkSpeed = SK_LSPEED_10MBPS;
3894                 }
3895                 else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3896                         LinkSpeed = SK_LSPEED_100MBPS;
3897                 }
3898                 else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3899                         LinkSpeed = SK_LSPEED_1000MBPS;
3900                 }
3901                 else printk("%s: Illegal value for Speed_B\n",
3902                         pAC->dev[1]->name);
3903         }
3904
3905         /* Check speed parameter */
3906         /* Only copper type adapter and GE V2 cards */
3907         if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3908                 (pAC->GIni.GICopperType != SK_TRUE)) &&
3909                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3910                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3911                 printk("%s: Illegal value for Speed_B. "
3912                         "Not a copper card or GE V2 card\n    Using "
3913                         "speed 1000\n", pAC->dev[1]->name);
3914                 LinkSpeed = SK_LSPEED_1000MBPS;
3915         }
3916         pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3917
3918         /* Auto negotiation */
3919         AutoNeg = AN_SENS; /* default: do auto Sense */
3920         AutoSet = SK_FALSE;
3921         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3922                 AutoNeg_B[pAC->Index] != NULL) {
3923                 AutoSet = SK_TRUE;
3924                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3925                         AutoSet = SK_FALSE;
3926                 }
3927                 else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3928                         AutoNeg = AN_ON;
3929                 }
3930                 else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3931                         AutoNeg = AN_OFF;
3932                 }
3933                 else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3934                         AutoNeg = AN_SENS;
3935                 }
3936                 else printk("Illegal value for AutoNeg_B\n");
3937         }
3938
3939         DuplexCap = DC_BOTH;
3940         DupSet = SK_FALSE;
3941         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3942                 DupCap_B[pAC->Index] != NULL) {
3943                 DupSet = SK_TRUE;
3944                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3945                         DupSet = SK_FALSE;
3946                 }
3947                 else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3948                         DuplexCap = DC_BOTH;
3949                 }
3950                 else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3951                         DuplexCap = DC_FULL;
3952                 }
3953                 else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3954                         DuplexCap = DC_HALF;
3955                 }
3956                 else printk("Illegal value for DupCap_B\n");
3957         }
3958
3959         /* check for illegal combinations */
3960         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3961                 printk("%s, Port B: DuplexCapabilities"
3962                         " ignored using Sense mode\n", pAC->dev[1]->name);
3963         }
3964         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3965                 printk("%s, Port B: Illegal combination"
3966                         " of values AutoNeg. and DuplexCap.\n    Using "
3967                         "Full Duplex\n", pAC->dev[1]->name);
3968
3969                 DuplexCap = DC_FULL;
3970         }
3971         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3972                 DuplexCap = DC_FULL;
3973         }
3974
3975         if (!AutoSet && DupSet) {
3976                 printk("%s, Port B: Duplex setting not"
3977                         " possible in\n    default AutoNegotiation mode"
3978                         " (Sense).\n    Using AutoNegotiation On\n",
3979                         pAC->dev[1]->name);
3980                 AutoNeg = AN_ON;
3981         }
3982
3983         /* set the desired mode */
3984         pAC->GIni.GP[1].PLinkModeConf =
3985                 Capabilities[AutoNeg][DuplexCap];
3986
3987         pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3988         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3989                 FlowCtrl_B[pAC->Index] != NULL) {
3990                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3991                 }
3992                 else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3993                         pAC->GIni.GP[1].PFlowCtrlMode =
3994                                 SK_FLOW_MODE_SYM_OR_REM;
3995                 }
3996                 else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3997                         pAC->GIni.GP[1].PFlowCtrlMode =
3998                                 SK_FLOW_MODE_SYMMETRIC;
3999                 }
4000                 else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
4001                         pAC->GIni.GP[1].PFlowCtrlMode =
4002                                 SK_FLOW_MODE_LOC_SEND;
4003                 }
4004                 else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
4005                         pAC->GIni.GP[1].PFlowCtrlMode =
4006                                 SK_FLOW_MODE_NONE;
4007                 }
4008                 else printk("Illegal value for FlowCtrl_B\n");
4009         }
4010         if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!=
4011                 SK_FLOW_MODE_NONE) {
4012                 printk("%s, Port B: FlowControl"
4013                         " impossible without AutoNegotiation,"
4014                         " disabled\n", pAC->dev[1]->name);
4015                 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE;
4016         }
4017
4018         MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
4019         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4020                 Role_B[pAC->Index] != NULL) {
4021                 if (strcmp(Role_B[pAC->Index],"")==0) {
4022                 }
4023                 else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
4024                         MSMode = SK_MS_MODE_AUTO;
4025                 }
4026                 else if (strcmp(Role_B[pAC->Index],"Master")==0) {
4027                         MSMode = SK_MS_MODE_MASTER;
4028                 }
4029                 else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
4030                         MSMode = SK_MS_MODE_SLAVE;
4031                 }
4032                 else printk("%s: Illegal value for Role_B\n",
4033                         pAC->dev[1]->name);
4034         }
4035         pAC->GIni.GP[1].PMSMode = MSMode;
4036
4037
4038         /* settings for both ports */
4039         pAC->ActivePort = 0;
4040         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4041                 PrefPort[pAC->Index] != NULL) {
4042                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
4043                         pAC->ActivePort = 0;
4044                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
4045                         pAC->Rlmt.Net[0].PrefPort = 0;
4046                 }
4047                 else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
4048                         /*
4049                          * do not set ActivePort here, thus a port
4050                          * switch is issued after net up.
4051                          */
4052                         Port = 0;
4053                         pAC->Rlmt.Net[0].Preference = Port;
4054                         pAC->Rlmt.Net[0].PrefPort = Port;
4055                 }
4056                 else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
4057                         /*
4058                          * do not set ActivePort here, thus a port
4059                          * switch is issued after net up.
4060                          */
4061                         Port = 1;
4062                         pAC->Rlmt.Net[0].Preference = Port;
4063                         pAC->Rlmt.Net[0].PrefPort = Port;
4064                 }
4065                 else printk("%s: Illegal value for PrefPort\n",
4066                         pAC->dev[0]->name);
4067         }
4068
4069         pAC->RlmtNets = 1;
4070
4071         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4072                 RlmtMode[pAC->Index] != NULL) {
4073                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
4074                         pAC->RlmtMode = 0;
4075                 }
4076                 else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
4077                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4078                 }
4079                 else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
4080                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
4081                                 SK_RLMT_CHECK_LOC_LINK;
4082                 }
4083                 else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
4084                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
4085                                 SK_RLMT_CHECK_LOC_LINK |
4086                                 SK_RLMT_CHECK_SEG;
4087                 }
4088                 else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
4089                         (pAC->GIni.GIMacsFound == 2)) {
4090                                 pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4091                                 pAC->RlmtNets = 2;
4092                 }
4093                 else {
4094                         printk("%s: Illegal value for"
4095                                 " RlmtMode, using default\n", pAC->dev[0]->name);
4096                         pAC->RlmtMode = 0;
4097                 }
4098         }
4099         else {
4100                 pAC->RlmtMode = 0;
4101         }
4102 } /* GetConfiguration */
4103
4104
4105 /*****************************************************************************
4106  *
4107  *      ProductStr - return a adapter identification string from vpd
4108  *
4109  * Description:
4110  *      This function reads the product name string from the vpd area
4111  *      and puts it the field pAC->DeviceString.
4112  *
4113  * Returns: N/A
4114  */
4115 static void ProductStr(
4116 SK_AC   *pAC            /* pointer to adapter context */
4117 )
4118 {
4119 int     StrLen = 80;            /* length of the string, defined in SK_AC */
4120 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
4121 int     ReturnCode;             /* return code from vpd_read */
4122 unsigned long Flags;
4123
4124         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
4125         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
4126                 &StrLen);
4127         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
4128         if (ReturnCode != 0) {
4129                 /* there was an error reading the vpd data */
4130                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
4131                         ("Error reading VPD data: %d\n", ReturnCode));
4132                 pAC->DeviceStr[0] = '\0';
4133         }
4134 } /* ProductStr */
4135
4136
4137 /****************************************************************************/
4138 /* functions for common modules *********************************************/
4139 /****************************************************************************/
4140
4141
4142 /*****************************************************************************
4143  *
4144  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
4145  *
4146  * Description:
4147  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
4148  *      is embedded into a socket buff data area.
4149  *
4150  * Context:
4151  *      runtime
4152  *
4153  * Returns:
4154  *      NULL or pointer to Mbuf.
4155  */
4156 SK_MBUF *SkDrvAllocRlmtMbuf(
4157 SK_AC           *pAC,           /* pointer to adapter context */
4158 SK_IOC          IoC,            /* the IO-context */
4159 unsigned        BufferSize)     /* size of the requested buffer */
4160 {
4161 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
4162 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
4163
4164         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
4165         if (pMsgBlock == NULL) {
4166                 return (NULL);
4167         }
4168         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
4169         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
4170         pRlmtMbuf->pNext = NULL;
4171         pRlmtMbuf->pOs = pMsgBlock;
4172         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
4173         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
4174         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
4175         return (pRlmtMbuf);
4176
4177 } /* SkDrvAllocRlmtMbuf */
4178
4179
4180 /*****************************************************************************
4181  *
4182  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
4183  *
4184  * Description:
4185  *      This routine frees one or more RLMT mbuf(s).
4186  *
4187  * Context:
4188  *      runtime
4189  *
4190  * Returns:
4191  *      Nothing
4192  */
4193 void  SkDrvFreeRlmtMbuf(
4194 SK_AC           *pAC,           /* pointer to adapter context */
4195 SK_IOC          IoC,            /* the IO-context */
4196 SK_MBUF         *pMbuf)         /* size of the requested buffer */
4197 {
4198 SK_MBUF         *pFreeMbuf;
4199 SK_MBUF         *pNextMbuf;
4200
4201         pFreeMbuf = pMbuf;
4202         do {
4203                 pNextMbuf = pFreeMbuf->pNext;
4204                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
4205                 pFreeMbuf = pNextMbuf;
4206         } while ( pFreeMbuf != NULL );
4207 } /* SkDrvFreeRlmtMbuf */
4208
4209
4210 /*****************************************************************************
4211  *
4212  *      SkOsGetTime - provide a time value
4213  *
4214  * Description:
4215  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
4216  *      It is not used for absolute time, but only for time differences.
4217  *
4218  *
4219  * Returns:
4220  *      Time value
4221  */
4222 SK_U64 SkOsGetTime(SK_AC *pAC)
4223 {
4224 #if 0
4225         return jiffies;
4226 #else
4227         return get_timer(0);
4228 #endif
4229 } /* SkOsGetTime */
4230
4231
4232 /*****************************************************************************
4233  *
4234  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
4235  *
4236  * Description:
4237  *      This routine reads a 32 bit value from the pci configuration
4238  *      space.
4239  *
4240  * Returns:
4241  *      0 - indicate everything worked ok.
4242  *      != 0 - error indication
4243  */
4244 int SkPciReadCfgDWord(
4245 SK_AC *pAC,             /* Adapter Control structure pointer */
4246 int PciAddr,            /* PCI register address */
4247 SK_U32 *pVal)           /* pointer to store the read value */
4248 {
4249         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
4250         return(0);
4251 } /* SkPciReadCfgDWord */
4252
4253
4254 /*****************************************************************************
4255  *
4256  *      SkPciReadCfgWord - read a 16 bit value from pci config space
4257  *
4258  * Description:
4259  *      This routine reads a 16 bit value from the pci configuration
4260  *      space.
4261  *
4262  * Returns:
4263  *      0 - indicate everything worked ok.
4264  *      != 0 - error indication
4265  */
4266 int SkPciReadCfgWord(
4267 SK_AC *pAC,     /* Adapter Control structure pointer */
4268 int PciAddr,            /* PCI register address */
4269 SK_U16 *pVal)           /* pointer to store the read value */
4270 {
4271         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
4272         return(0);
4273 } /* SkPciReadCfgWord */
4274
4275
4276 /*****************************************************************************
4277  *
4278  *      SkPciReadCfgByte - read a 8 bit value from pci config space
4279  *
4280  * Description:
4281  *      This routine reads a 8 bit value from the pci configuration
4282  *      space.
4283  *
4284  * Returns:
4285  *      0 - indicate everything worked ok.
4286  *      != 0 - error indication
4287  */
4288 int SkPciReadCfgByte(
4289 SK_AC *pAC,     /* Adapter Control structure pointer */
4290 int PciAddr,            /* PCI register address */
4291 SK_U8 *pVal)            /* pointer to store the read value */
4292 {
4293         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
4294         return(0);
4295 } /* SkPciReadCfgByte */
4296
4297
4298 /*****************************************************************************
4299  *
4300  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
4301  *
4302  * Description:
4303  *      This routine writes a 32 bit value to the pci configuration
4304  *      space.
4305  *
4306  * Returns:
4307  *      0 - indicate everything worked ok.
4308  *      != 0 - error indication
4309  */
4310 int SkPciWriteCfgDWord(
4311 SK_AC *pAC,     /* Adapter Control structure pointer */
4312 int PciAddr,            /* PCI register address */
4313 SK_U32 Val)             /* pointer to store the read value */
4314 {
4315         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
4316         return(0);
4317 } /* SkPciWriteCfgDWord */
4318
4319
4320 /*****************************************************************************
4321  *
4322  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
4323  *
4324  * Description:
4325  *      This routine writes a 16 bit value to the pci configuration
4326  *      space. The flag PciConfigUp indicates whether the config space
4327  *      is accesible or must be set up first.
4328  *
4329  * Returns:
4330  *      0 - indicate everything worked ok.
4331  *      != 0 - error indication
4332  */
4333 int SkPciWriteCfgWord(
4334 SK_AC *pAC,     /* Adapter Control structure pointer */
4335 int PciAddr,            /* PCI register address */
4336 SK_U16 Val)             /* pointer to store the read value */
4337 {
4338         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4339         return(0);
4340 } /* SkPciWriteCfgWord */
4341
4342
4343 /*****************************************************************************
4344  *
4345  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4346  *
4347  * Description:
4348  *      This routine writes a 8 bit value to the pci configuration
4349  *      space. The flag PciConfigUp indicates whether the config space
4350  *      is accesible or must be set up first.
4351  *
4352  * Returns:
4353  *      0 - indicate everything worked ok.
4354  *      != 0 - error indication
4355  */
4356 int SkPciWriteCfgByte(
4357 SK_AC *pAC,     /* Adapter Control structure pointer */
4358 int PciAddr,            /* PCI register address */
4359 SK_U8 Val)              /* pointer to store the read value */
4360 {
4361         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4362         return(0);
4363 } /* SkPciWriteCfgByte */
4364
4365
4366 /*****************************************************************************
4367  *
4368  *      SkDrvEvent - handle driver events
4369  *
4370  * Description:
4371  *      This function handles events from all modules directed to the driver
4372  *
4373  * Context:
4374  *      Is called under protection of slow path lock.
4375  *
4376  * Returns:
4377  *      0 if everything ok
4378  *      < 0  on error
4379  *
4380  */
4381 int SkDrvEvent(
4382 SK_AC *pAC,             /* pointer to adapter context */
4383 SK_IOC IoC,             /* io-context */
4384 SK_U32 Event,           /* event-id */
4385 SK_EVPARA Param)        /* event-parameter */
4386 {
4387 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4388 struct sk_buff  *pMsg;          /* pointer to a message block */
4389 int             FromPort;       /* the port from which we switch away */
4390 int             ToPort;         /* the port we switch to */
4391 SK_EVPARA       NewPara;        /* parameter for further events */
4392 #if 0
4393 int             Stat;
4394 #endif
4395 unsigned long   Flags;
4396 SK_BOOL         DualNet;
4397
4398         switch (Event) {
4399         case SK_DRV_ADAP_FAIL:
4400                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4401                         ("ADAPTER FAIL EVENT\n"));
4402                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4403                 /* disable interrupts */
4404                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4405                 /* cgoos */
4406                 break;
4407         case SK_DRV_PORT_FAIL:
4408                 FromPort = Param.Para32[0];
4409                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4410                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4411                 if (FromPort == 0) {
4412                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4413                 } else {
4414                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4415                 }
4416                 /* cgoos */
4417                 break;
4418         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4419                 /* action list 4 */
4420                 FromPort = Param.Para32[0];
4421                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4422                         ("PORT RESET EVENT, Port: %d ", FromPort));
4423                 NewPara.Para64 = FromPort;
4424                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4425                 spin_lock_irqsave(
4426                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4427                         Flags);
4428                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4429 #if 0
4430                 pAC->dev[Param.Para32[0]]->flags &= ~IFF_RUNNING;
4431 #endif
4432                 spin_unlock_irqrestore(
4433                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4434                         Flags);
4435
4436                 /* clear rx ring from received frames */
4437                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4438
4439                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4440                 spin_lock_irqsave(
4441                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4442                         Flags);
4443
4444                 /* tschilling: Handling of return value inserted. */
4445                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4446                         if (FromPort == 0) {
4447                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4448                         } else {
4449                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4450                         }
4451                 }
4452                 SkAddrMcUpdate(pAC,IoC, FromPort);
4453                 PortReInitBmu(pAC, FromPort);
4454                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4455                 ClearAndStartRx(pAC, FromPort);
4456                 spin_unlock_irqrestore(
4457                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4458                         Flags);
4459                 break;
4460         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4461                 /* action list 5 */
4462                 FromPort = Param.Para32[0];
4463                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4464                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4465 #ifdef SK98_INFO
4466                 printk("%s: network connection up using"
4467                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4468
4469                 /* tschilling: Values changed according to LinkSpeedUsed. */
4470                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4471                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4472                         printk("    speed:           10\n");
4473                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4474                         printk("    speed:           100\n");
4475                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4476                         printk("    speed:           1000\n");
4477                 } else {
4478                         printk("    speed:           unknown\n");
4479                 }
4480
4481                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4482                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4483                         Stat == SK_LMODE_STAT_AUTOFULL) {
4484                         printk("    autonegotiation: yes\n");
4485                 }
4486                 else {
4487                         printk("    autonegotiation: no\n");
4488                 }
4489                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4490                         Stat == SK_LMODE_STAT_HALF) {
4491                         printk("    duplex mode:     half\n");
4492                 }
4493                 else {
4494                         printk("    duplex mode:     full\n");
4495                 }
4496                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4497                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4498                         printk("    flowctrl:        remote send\n");
4499                 }
4500                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4501                         printk("    flowctrl:        local send\n");
4502                 }
4503                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4504                         printk("    flowctrl:        symmetric\n");
4505                 }
4506                 else {
4507                         printk("    flowctrl:        none\n");
4508                 }
4509
4510                 /* tschilling: Check against CopperType now. */
4511                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4512                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4513                         SK_LSPEED_STAT_1000MBPS)) {
4514                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4515                         if (Stat == SK_MS_STAT_MASTER ) {
4516                                 printk("    role:            master\n");
4517                         }
4518                         else if (Stat == SK_MS_STAT_SLAVE ) {
4519                                 printk("    role:            slave\n");
4520                         }
4521                         else {
4522                                 printk("    role:            ???\n");
4523                         }
4524                 }
4525
4526 #ifdef SK_ZEROCOPY
4527                 if (pAC->GIni.GIChipId == CHIP_ID_YUKON)
4528                         printk("    scatter-gather:  enabled\n");
4529                 else
4530                         printk("    scatter-gather:  disabled\n");
4531
4532 #else
4533                         printk("    scatter-gather:  disabled\n");
4534 #endif
4535 #endif /* SK98_INFO */
4536
4537                 if ((Param.Para32[0] != pAC->ActivePort) &&
4538                         (pAC->RlmtNets == 1)) {
4539                         NewPara.Para32[0] = pAC->ActivePort;
4540                         NewPara.Para32[1] = Param.Para32[0];
4541                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4542                                 NewPara);
4543                 }
4544
4545                 /* Inform the world that link protocol is up. */
4546 #if 0
4547                 pAC->dev[Param.Para32[0]]->flags |= IFF_RUNNING;
4548 #endif
4549
4550                 break;
4551         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4552                 /* action list 7 */
4553                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4554                         ("NET DOWN EVENT "));
4555 #ifdef SK98_INFO
4556                 printk("%s: network connection down\n", pAC->dev[Param.Para32[1]]->name);
4557 #endif
4558 #if 0
4559                 pAC->dev[Param.Para32[1]]->flags &= ~IFF_RUNNING;
4560 #endif
4561                 break;
4562         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4563                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4564                         ("PORT SWITCH HARD "));
4565         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4566         /* action list 6 */
4567                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4568                         'A'+Param.Para32[1]);
4569         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4570                 FromPort = Param.Para32[0];
4571                 ToPort = Param.Para32[1];
4572                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4573                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4574                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4575                 NewPara.Para64 = FromPort;
4576                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4577                 NewPara.Para64 = ToPort;
4578                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4579                 spin_lock_irqsave(
4580                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4581                         Flags);
4582                 spin_lock_irqsave(
4583                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4584                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4585                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4586                 spin_unlock_irqrestore(
4587                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4588                 spin_unlock_irqrestore(
4589                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4590                         Flags);
4591
4592                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4593                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4594
4595                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4596                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4597                 spin_lock_irqsave(
4598                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4599                         Flags);
4600                 spin_lock_irqsave(
4601                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4602                 pAC->ActivePort = ToPort;
4603 #if 0
4604                 SetQueueSizes(pAC);
4605 #else
4606                 /* tschilling: New common function with minimum size check. */
4607                 DualNet = SK_FALSE;
4608                 if (pAC->RlmtNets == 2) {
4609                         DualNet = SK_TRUE;
4610                 }
4611
4612                 if (SkGeInitAssignRamToQueues(
4613                         pAC,
4614                         pAC->ActivePort,
4615                         DualNet)) {
4616                         spin_unlock_irqrestore(
4617                                 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4618                         spin_unlock_irqrestore(
4619                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4620                                 Flags);
4621                         printk("SkGeInitAssignRamToQueues failed.\n");
4622                         break;
4623                 }
4624 #endif
4625                 /* tschilling: Handling of return values inserted. */
4626                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4627                         SkGeInitPort(pAC, IoC, ToPort)) {
4628                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4629                 }
4630                 if (Event == SK_DRV_SWITCH_SOFT) {
4631                         SkMacRxTxEnable(pAC, IoC, FromPort);
4632                 }
4633                 SkMacRxTxEnable(pAC, IoC, ToPort);
4634                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4635                 SkAddrMcUpdate(pAC, IoC, FromPort);
4636                 SkAddrMcUpdate(pAC, IoC, ToPort);
4637                 PortReInitBmu(pAC, FromPort);
4638                 PortReInitBmu(pAC, ToPort);
4639                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4640                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4641                 ClearAndStartRx(pAC, FromPort);
4642                 ClearAndStartRx(pAC, ToPort);
4643                 spin_unlock_irqrestore(
4644                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4645                 spin_unlock_irqrestore(
4646                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4647                         Flags);
4648                 break;
4649         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4650                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4651                         ("RLS "));
4652                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4653                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4654                 skb_put(pMsg, pRlmtMbuf->Length);
4655                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4656                         pMsg) < 0)
4657
4658                         DEV_KFREE_SKB_ANY(pMsg);
4659                 break;
4660         default:
4661                 break;
4662         }
4663         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4664                 ("END EVENT "));
4665
4666         return (0);
4667 } /* SkDrvEvent */
4668
4669
4670 /*****************************************************************************
4671  *
4672  *      SkErrorLog - log errors
4673  *
4674  * Description:
4675  *      This function logs errors to the system buffer and to the console
4676  *
4677  * Returns:
4678  *      0 if everything ok
4679  *      < 0  on error
4680  *
4681  */
4682 void SkErrorLog(
4683 SK_AC   *pAC,
4684 int     ErrClass,
4685 int     ErrNum,
4686 char    *pErrorMsg)
4687 {
4688 char    ClassStr[80];
4689
4690         switch (ErrClass) {
4691         case SK_ERRCL_OTHER:
4692                 strcpy(ClassStr, "Other error");
4693                 break;
4694         case SK_ERRCL_CONFIG:
4695                 strcpy(ClassStr, "Configuration error");
4696                 break;
4697         case SK_ERRCL_INIT:
4698                 strcpy(ClassStr, "Initialization error");
4699                 break;
4700         case SK_ERRCL_NORES:
4701                 strcpy(ClassStr, "Out of resources error");
4702                 break;
4703         case SK_ERRCL_SW:
4704                 strcpy(ClassStr, "internal Software error");
4705                 break;
4706         case SK_ERRCL_HW:
4707                 strcpy(ClassStr, "Hardware failure");
4708                 break;
4709         case SK_ERRCL_COMM:
4710                 strcpy(ClassStr, "Communication error");
4711                 break;
4712         }
4713         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4714                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4715                 ClassStr, ErrNum, pErrorMsg);
4716
4717 } /* SkErrorLog */
4718
4719 #ifdef DEBUG
4720 /****************************************************************************/
4721 /* "debug only" section *****************************************************/
4722 /****************************************************************************/
4723
4724
4725 /*****************************************************************************
4726  *
4727  *      DumpMsg - print a frame
4728  *
4729  * Description:
4730  *      This function prints frames to the system logfile/to the console.
4731  *
4732  * Returns: N/A
4733  *
4734  */
4735 static void DumpMsg(struct sk_buff *skb, char *str)
4736 {
4737         int     msglen;
4738
4739         if (skb == NULL) {
4740                 printk("DumpMsg(): NULL-Message\n");
4741                 return;
4742         }
4743
4744         if (skb->data == NULL) {
4745                 printk("DumpMsg(): Message empty\n");
4746                 return;
4747         }
4748
4749         msglen = skb->len;
4750         if (msglen > 64)
4751                 msglen = 64;
4752
4753         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4754
4755         DumpData((char *)skb->data, msglen);
4756
4757         printk("------- End of message ---------\n");
4758 } /* DumpMsg */
4759
4760
4761 /*****************************************************************************
4762  *
4763  *      DumpData - print a data area
4764  *
4765  * Description:
4766  *      This function prints a area of data to the system logfile/to the
4767  *      console.
4768  *
4769  * Returns: N/A
4770  *
4771  */
4772 static void DumpData(char *p, int size)
4773 {
4774 register int    i;
4775 int     haddr, addr;
4776 char    hex_buffer[180];
4777 char    asc_buffer[180];
4778 char    HEXCHAR[] = "0123456789ABCDEF";
4779
4780         addr = 0;
4781         haddr = 0;
4782         hex_buffer[0] = 0;
4783         asc_buffer[0] = 0;
4784         for (i=0; i < size; ) {
4785                 if (*p >= '0' && *p <='z')
4786                         asc_buffer[addr] = *p;
4787                 else
4788                         asc_buffer[addr] = '.';
4789                 addr++;
4790                 asc_buffer[addr] = 0;
4791                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4792                 haddr++;
4793                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4794                 haddr++;
4795                 hex_buffer[haddr] = ' ';
4796                 haddr++;
4797                 hex_buffer[haddr] = 0;
4798                 p++;
4799                 i++;
4800                 if (i%16 == 0) {
4801                         printk("%s  %s\n", hex_buffer, asc_buffer);
4802                         addr = 0;
4803                         haddr = 0;
4804                 }
4805         }
4806 } /* DumpData */
4807
4808
4809 /*****************************************************************************
4810  *
4811  *      DumpLong - print a data area as long values
4812  *
4813  * Description:
4814  *      This function prints a area of data to the system logfile/to the
4815  *      console.
4816  *
4817  * Returns: N/A
4818  *
4819  */
4820 static void DumpLong(char *pc, int size)
4821 {
4822 register int    i;
4823 int     haddr, addr;
4824 char    hex_buffer[180];
4825 char    asc_buffer[180];
4826 char    HEXCHAR[] = "0123456789ABCDEF";
4827 long    *p;
4828 int     l;
4829
4830         addr = 0;
4831         haddr = 0;
4832         hex_buffer[0] = 0;
4833         asc_buffer[0] = 0;
4834         p = (long*) pc;
4835         for (i=0; i < size; ) {
4836                 l = (long) *p;
4837                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4838                 haddr++;
4839                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4840                 haddr++;
4841                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4842                 haddr++;
4843                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4844                 haddr++;
4845                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4846                 haddr++;
4847                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4848                 haddr++;
4849                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4850                 haddr++;
4851                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4852                 haddr++;
4853                 hex_buffer[haddr] = ' ';
4854                 haddr++;
4855                 hex_buffer[haddr] = 0;
4856                 p++;
4857                 i++;
4858                 if (i%8 == 0) {
4859                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4860                         haddr = 0;
4861                 }
4862         }
4863         printk("------------------------\n");
4864 } /* DumpLong */
4865
4866 #endif