git.sur5r.net Git - u-boot/blob - 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                 SetupRing(
1386                         pAC,
1387                         pAC->TxPort[i][0].pTxDescrRing,
1388                         pAC->TxPort[i][0].VTxDescrRing,
1389                         (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
1390                         (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
1391                         (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
1392                         &pAC->TxPort[i][0].TxdRingFree,
1393                         SK_TRUE);
1394                 SetupRing(
1395                         pAC,
1396                         pAC->RxPort[i].pRxDescrRing,
1397                         pAC->RxPort[i].VRxDescrRing,
1398                         &pAC->RxPort[i].pRxdRingHead,
1399                         &pAC->RxPort[i].pRxdRingTail,
1400                         &pAC->RxPort[i].pRxdRingPrev,
1401                         &pAC->RxPort[i].RxdRingFree,
1402                         SK_FALSE);
1403         }
1404 } /* BoardInitMem */
1405
1406
1407 /*****************************************************************************
1408  *
1409  *      SetupRing - create one descriptor ring
1410  *
1411  * Description:
1412  *      This function creates one descriptor ring in the given memory area.
1413  *      The head, tail and number of free descriptors in the ring are set.
1414  *
1415  * Returns:
1416  *      none
1417  */
1418 static void SetupRing(
1419 SK_AC           *pAC,
1420 void            *pMemArea,      /* a pointer to the memory area for the ring */
1421 uintptr_t       VMemArea,       /* the virtual bus address of the memory area */
1422 RXD             **ppRingHead,   /* address where the head should be written */
1423 RXD             **ppRingTail,   /* address where the tail should be written */
1424 RXD             **ppRingPrev,   /* address where the tail should be written */
1425 int             *pRingFree,     /* address where the # of free descr. goes */
1426 SK_BOOL         IsTx)           /* flag: is this a tx ring */
1427 {
1428 int     i;              /* loop counter */
1429 int     DescrSize;      /* the size of a descriptor rounded up to alignment*/
1430 int     DescrNum;       /* number of descriptors per ring */
1431 RXD     *pDescr;        /* pointer to a descriptor (receive or transmit) */
1432 RXD     *pNextDescr;    /* pointer to the next descriptor */
1433 RXD     *pPrevDescr;    /* pointer to the previous descriptor */
1434 uintptr_t VNextDescr;   /* the virtual bus address of the next descriptor */
1435
1436         if (IsTx == SK_TRUE) {
1437                 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
1438                         DESCR_ALIGN;
1439                 DescrNum = TX_RING_SIZE / DescrSize;
1440         } else {
1441                 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
1442                         DESCR_ALIGN;
1443                 DescrNum = RX_RING_SIZE / DescrSize;
1444         }
1445
1446         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1447                 ("Descriptor size: %d   Descriptor Number: %d\n",
1448                 DescrSize,DescrNum));
1449
1450         pDescr = (RXD*) pMemArea;
1451         pPrevDescr = NULL;
1452         pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1453         VNextDescr = VMemArea + DescrSize;
1454         for(i=0; i<DescrNum; i++) {
1455                 /* set the pointers right */
1456                 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
1457                 pDescr->pNextRxd = pNextDescr;
1458                 pDescr->TcpSumStarts = pAC->CsOfs;
1459
1460                 /* advance one step */
1461                 pPrevDescr = pDescr;
1462                 pDescr = pNextDescr;
1463                 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1464                 VNextDescr += DescrSize;
1465         }
1466         pPrevDescr->pNextRxd = (RXD*) pMemArea;
1467         pPrevDescr->VNextRxd = VMemArea;
1468         pDescr = (RXD*) pMemArea;
1469         *ppRingHead = (RXD*) pMemArea;
1470         *ppRingTail = *ppRingHead;
1471         *ppRingPrev = pPrevDescr;
1472         *pRingFree = DescrNum;
1473 } /* SetupRing */
1474
1475
1476 /*****************************************************************************
1477  *
1478  *      PortReInitBmu - re-initiate the descriptor rings for one port
1479  *
1480  * Description:
1481  *      This function reinitializes the descriptor rings of one port
1482  *      in memory. The port must be stopped before.
1483  *      The HW is initialized with the descriptor start addresses.
1484  *
1485  * Returns:
1486  *      none
1487  */
1488 static void PortReInitBmu(
1489 SK_AC   *pAC,           /* pointer to adapter context */
1490 int     PortIndex)      /* index of the port for which to re-init */
1491 {
1492         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1493                 ("PortReInitBmu "));
1494
1495         /* set address of first descriptor of ring in BMU */
1496         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1497                 TX_Q_CUR_DESCR_LOW,
1498                 (uint32_t)(((caddr_t)
1499                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1500                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1501                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
1502                 0xFFFFFFFF));
1503         SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1504                 TX_Q_DESCR_HIGH,
1505                 (uint32_t)(((caddr_t)
1506                 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1507                 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1508                 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
1509         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CUR_DESCR_LOW,
1510                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1511                 pAC->RxPort[PortIndex].pRxDescrRing +
1512                 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
1513         SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH,
1514                 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1515                 pAC->RxPort[PortIndex].pRxDescrRing +
1516                 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
1517 } /* PortReInitBmu */
1518
1519
1520 /****************************************************************************
1521  *
1522  *      SkGeIsr - handle adapter interrupts
1523  *
1524  * Description:
1525  *      The interrupt routine is called when the network adapter
1526  *      generates an interrupt. It may also be called if another device
1527  *      shares this interrupt vector with the driver.
1528  *
1529  * Returns: N/A
1530  *
1531  */
1532 #if 0
1533 static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1534 #else
1535 void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1536 #endif
1537 {
1538 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1539 DEV_NET         *pNet;
1540 SK_AC           *pAC;
1541 SK_U32          IntSrc;         /* interrupts source register contents */
1542
1543         pNet = (DEV_NET*) dev->priv;
1544         pAC = pNet->pAC;
1545
1546         /*
1547          * Check and process if its our interrupt
1548          */
1549         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1550         if (IntSrc == 0) {
1551                 return;
1552         }
1553
1554         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1555 #if 0 /* software irq currently not used */
1556                 if (IntSrc & IRQ_SW) {
1557                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1558                                 SK_DBGCAT_DRV_INT_SRC,
1559                                 ("Software IRQ\n"));
1560                 }
1561 #endif
1562                 if (IntSrc & IRQ_EOF_RX1) {
1563                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1564                                 SK_DBGCAT_DRV_INT_SRC,
1565                                 ("EOF RX1 IRQ\n"));
1566                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1567                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1568                 }
1569                 if (IntSrc & IRQ_EOF_RX2) {
1570                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1571                                 SK_DBGCAT_DRV_INT_SRC,
1572                                 ("EOF RX2 IRQ\n"));
1573                         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1574                         SK_PNMI_CNT_RX_INTR(pAC, 1);
1575                 }
1576 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1577                 if (IntSrc & IRQ_EOF_AS_TX1) {
1578                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1579                                 SK_DBGCAT_DRV_INT_SRC,
1580                                 ("EOF AS TX1 IRQ\n"));
1581                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1582                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1583                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1584                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1585                 }
1586                 if (IntSrc & IRQ_EOF_AS_TX2) {
1587                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1588                                 SK_DBGCAT_DRV_INT_SRC,
1589                                 ("EOF AS TX2 IRQ\n"));
1590                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1591                         spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1592                         FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
1593                         spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1594                 }
1595 #if 0 /* only if sync. queues used */
1596                 if (IntSrc & IRQ_EOF_SY_TX1) {
1597                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1598                                 SK_DBGCAT_DRV_INT_SRC,
1599                                 ("EOF SY TX1 IRQ\n"));
1600                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1601                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1602                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1603                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1604                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1605                 }
1606                 if (IntSrc & IRQ_EOF_SY_TX2) {
1607                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1608                                 SK_DBGCAT_DRV_INT_SRC,
1609                                 ("EOF SY TX2 IRQ\n"));
1610                         SK_PNMI_CNT_TX_INTR(pAC, 1);
1611                         spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1612                         FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
1613                         spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1614                         ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
1615                 }
1616 #endif
1617 #endif
1618
1619                 /* do all IO at once */
1620                 if (IntSrc & IRQ_EOF_RX1)
1621                         ClearAndStartRx(pAC, 0);
1622                 if (IntSrc & IRQ_EOF_RX2)
1623                         ClearAndStartRx(pAC, 1);
1624 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1625                 if (IntSrc & IRQ_EOF_AS_TX1)
1626                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1627                 if (IntSrc & IRQ_EOF_AS_TX2)
1628                         ClearTxIrq(pAC, 1, TX_PRIO_LOW);
1629 #endif
1630                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1631         } /* while (IntSrc & IRQ_MASK != 0) */
1632
1633         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1634                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1635                         ("SPECIAL IRQ DP-Cards => %x\n", IntSrc));
1636                 pAC->CheckQueue = SK_FALSE;
1637                 spin_lock(&pAC->SlowPathLock);
1638                 if (IntSrc & SPECIAL_IRQS)
1639                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1640
1641                 SkEventDispatcher(pAC, pAC->IoBase);
1642                 spin_unlock(&pAC->SlowPathLock);
1643         }
1644         /*
1645          * do it all again is case we cleared an interrupt that
1646          * came in after handling the ring (OUTs may be delayed
1647          * in hardware buffers, but are through after IN)
1648          */
1649
1650         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1651         ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE);
1652
1653         if (pAC->CheckQueue) {
1654                 pAC->CheckQueue = SK_FALSE;
1655                 spin_lock(&pAC->SlowPathLock);
1656                 SkEventDispatcher(pAC, pAC->IoBase);
1657                 spin_unlock(&pAC->SlowPathLock);
1658         }
1659
1660
1661         /* IRQ is processed - Enable IRQs again*/
1662         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1663
1664         return;
1665 } /* SkGeIsr */
1666
1667
1668 /****************************************************************************
1669  *
1670  *      SkGeIsrOnePort - handle adapter interrupts for single port adapter
1671  *
1672  * Description:
1673  *      The interrupt routine is called when the network adapter
1674  *      generates an interrupt. It may also be called if another device
1675  *      shares this interrupt vector with the driver.
1676  *      This is the same as above, but handles only one port.
1677  *
1678  * Returns: N/A
1679  *
1680  */
1681 #if 0
1682 static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1683 #else
1684 void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1685 #endif
1686 {
1687 struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id;
1688 DEV_NET         *pNet;
1689 SK_AC           *pAC;
1690 SK_U32          IntSrc;         /* interrupts source register contents */
1691
1692         pNet = (DEV_NET*) dev->priv;
1693         pAC = pNet->pAC;
1694
1695         /*
1696          * Check and process if its our interrupt
1697          */
1698         SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1699         if (IntSrc == 0) {
1700                 return;
1701         }
1702
1703         while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1704 #if 0 /* software irq currently not used */
1705                 if (IntSrc & IRQ_SW) {
1706                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1707                                 SK_DBGCAT_DRV_INT_SRC,
1708                                 ("Software IRQ\n"));
1709                 }
1710 #endif
1711                 if (IntSrc & IRQ_EOF_RX1) {
1712                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1713                                 SK_DBGCAT_DRV_INT_SRC,
1714                                 ("EOF RX1 IRQ\n"));
1715                         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1716                         SK_PNMI_CNT_RX_INTR(pAC, 0);
1717                 }
1718 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1719                 if (IntSrc & IRQ_EOF_AS_TX1) {
1720                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1721                                 SK_DBGCAT_DRV_INT_SRC,
1722                                 ("EOF AS TX1 IRQ\n"));
1723                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1724                         spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1725                         FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1726                         spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1727                 }
1728 #if 0 /* only if sync. queues used */
1729                 if (IntSrc & IRQ_EOF_SY_TX1) {
1730                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1731                                 SK_DBGCAT_DRV_INT_SRC,
1732                                 ("EOF SY TX1 IRQ\n"));
1733                         SK_PNMI_CNT_TX_INTR(pAC, 0);
1734                         spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1735                         FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1736                         spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1737                         ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1738                 }
1739 #endif
1740 #endif
1741
1742                 /* do all IO at once */
1743                 if (IntSrc & IRQ_EOF_RX1)
1744                         ClearAndStartRx(pAC, 0);
1745 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1746                 if (IntSrc & IRQ_EOF_AS_TX1)
1747                         ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1748 #endif
1749                 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1750         } /* while (IntSrc & IRQ_MASK != 0) */
1751
1752         if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1753                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1754                         ("SPECIAL IRQ SP-Cards => %x\n", IntSrc));
1755                 pAC->CheckQueue = SK_FALSE;
1756                 spin_lock(&pAC->SlowPathLock);
1757                 if (IntSrc & SPECIAL_IRQS)
1758                         SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1759
1760                 SkEventDispatcher(pAC, pAC->IoBase);
1761                 spin_unlock(&pAC->SlowPathLock);
1762         }
1763         /*
1764          * do it all again is case we cleared an interrupt that
1765          * came in after handling the ring (OUTs may be delayed
1766          * in hardware buffers, but are through after IN)
1767          */
1768         ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE);
1769
1770         /* IRQ is processed - Enable IRQs again*/
1771         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1772
1773         return;
1774 } /* SkGeIsrOnePort */
1775
1776
1777 /****************************************************************************
1778  *
1779  *      SkGeOpen - handle start of initialized adapter
1780  *
1781  * Description:
1782  *      This function starts the initialized adapter.
1783  *      The board level variable is set and the adapter is
1784  *      brought to full functionality.
1785  *      The device flags are set for operation.
1786  *      Do all necessary level 2 initialization, enable interrupts and
1787  *      give start command to RLMT.
1788  *
1789  * Returns:
1790  *      0 on success
1791  *      != 0 on error
1792  */
1793 #if 0
1794 static int SkGeOpen(
1795 #else
1796 int SkGeOpen(
1797 #endif
1798 struct SK_NET_DEVICE    *dev)
1799 {
1800         DEV_NET                 *pNet;
1801         SK_AC                   *pAC;
1802         unsigned long   Flags;          /* for spin lock */
1803         int                             i;
1804         SK_EVPARA               EvPara;         /* an event parameter union */
1805
1806         pNet = (DEV_NET*) dev->priv;
1807         pAC = pNet->pAC;
1808
1809         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1810                 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1811
1812         if (pAC->BoardLevel == 0) {
1813                 /* level 1 init common modules here */
1814                 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1815                         printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name);
1816                         return (-1);
1817                 }
1818                 SkI2cInit       (pAC, pAC->IoBase, 1);
1819                 SkEventInit     (pAC, pAC->IoBase, 1);
1820                 SkPnmiInit      (pAC, pAC->IoBase, 1);
1821                 SkAddrInit      (pAC, pAC->IoBase, 1);
1822                 SkRlmtInit      (pAC, pAC->IoBase, 1);
1823                 SkTimerInit     (pAC, pAC->IoBase, 1);
1824                 pAC->BoardLevel = 1;
1825         }
1826
1827         if (pAC->BoardLevel != 2) {
1828                 /* tschilling: Level 2 init modules here, check return value. */
1829                 if (SkGeInit(pAC, pAC->IoBase, 2) != 0) {
1830                         printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name);
1831                         return (-1);
1832                 }
1833                 SkI2cInit       (pAC, pAC->IoBase, 2);
1834                 SkEventInit     (pAC, pAC->IoBase, 2);
1835                 SkPnmiInit      (pAC, pAC->IoBase, 2);
1836                 SkAddrInit      (pAC, pAC->IoBase, 2);
1837                 SkRlmtInit      (pAC, pAC->IoBase, 2);
1838                 SkTimerInit     (pAC, pAC->IoBase, 2);
1839                 pAC->BoardLevel = 2;
1840         }
1841
1842         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1843                 /* Enable transmit descriptor polling. */
1844                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1845                 FillRxRing(pAC, &pAC->RxPort[i]);
1846         }
1847         SkGeYellowLED(pAC, pAC->IoBase, 1);
1848
1849 #ifdef USE_INT_MOD
1850 /* moderate only TX complete interrupts (these are not time critical) */
1851 #define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2)
1852         {
1853                 unsigned long ModBase;
1854                 ModBase = 53125000 / INTS_PER_SEC;
1855                 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
1856                 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
1857                 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
1858         }
1859 #endif
1860
1861         /* enable Interrupts */
1862         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1863         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1864
1865         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1866
1867         if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) {
1868                 EvPara.Para32[0] = pAC->RlmtNets;
1869                 EvPara.Para32[1] = -1;
1870                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
1871                         EvPara);
1872                 EvPara.Para32[0] = pAC->RlmtMode;
1873                 EvPara.Para32[1] = 0;
1874                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1875                         EvPara);
1876         }
1877
1878         EvPara.Para32[0] = pNet->NetNr;
1879         EvPara.Para32[1] = -1;
1880         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1881         SkEventDispatcher(pAC, pAC->IoBase);
1882         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1883
1884         pAC->MaxPorts++;
1885         pNet->Up = 1;
1886
1887         MOD_INC_USE_COUNT;
1888
1889         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1890                 ("SkGeOpen suceeded\n"));
1891
1892         return (0);
1893 } /* SkGeOpen */
1894
1895
1896 /****************************************************************************
1897  *
1898  *      SkGeClose - Stop initialized adapter
1899  *
1900  * Description:
1901  *      Close initialized adapter.
1902  *
1903  * Returns:
1904  *      0 - on success
1905  *      error code - on error
1906  */
1907 #if 0
1908 static int SkGeClose(
1909 #else
1910 int SkGeClose(
1911 #endif
1912 struct SK_NET_DEVICE    *dev)
1913 {
1914         DEV_NET                 *pNet;
1915         SK_AC                   *pAC;
1916
1917         unsigned long   Flags;          /* for spin lock */
1918         int                             i;
1919         int                             PortIdx;
1920         SK_EVPARA               EvPara;
1921
1922         netif_stop_queue(dev);
1923         pNet = (DEV_NET*) dev->priv;
1924         pAC = pNet->pAC;
1925
1926         if (pAC->RlmtNets == 1)
1927                 PortIdx = pAC->ActivePort;
1928         else
1929                 PortIdx = pNet->NetNr;
1930
1931         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1932                 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1933
1934         /*
1935          * Clear multicast table, promiscuous mode ....
1936          */
1937         SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
1938         SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
1939                 SK_PROM_MODE_NONE);
1940
1941         if (pAC->MaxPorts == 1) {
1942                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1943                 /* disable interrupts */
1944                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1945                 EvPara.Para32[0] = pNet->NetNr;
1946                 EvPara.Para32[1] = -1;
1947                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1948                 SkEventDispatcher(pAC, pAC->IoBase);
1949                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1950                 /* stop the hardware */
1951                 SkGeDeInit(pAC, pAC->IoBase);
1952                 pAC->BoardLevel = 0;
1953                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1954         } else {
1955
1956                 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1957                 EvPara.Para32[0] = pNet->NetNr;
1958                 EvPara.Para32[1] = -1;
1959                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1960                 SkEventDispatcher(pAC, pAC->IoBase);
1961                 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1962
1963                 /* Stop port */
1964                 spin_lock_irqsave(&pAC->TxPort[pNet->PortNr]
1965                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1966                 SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr,
1967                         SK_STOP_ALL, SK_HARD_RST);
1968                 spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr]
1969                         [TX_PRIO_LOW].TxDesRingLock, Flags);
1970         }
1971
1972         if (pAC->RlmtNets == 1) {
1973                 /* clear all descriptor rings */
1974                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1975                         ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
1976                         ClearRxRing(pAC, &pAC->RxPort[i]);
1977                         ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1978                 }
1979         } else {
1980                 /* clear port descriptor rings */
1981                 ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE);
1982                 ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]);
1983                 ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]);
1984         }
1985
1986         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1987                 ("SkGeClose: done "));
1988
1989         pAC->MaxPorts--;
1990         pNet->Up = 0;
1991         MOD_DEC_USE_COUNT;
1992
1993         return (0);
1994 } /* SkGeClose */
1995
1996
1997 /*****************************************************************************
1998  *
1999  *      SkGeXmit - Linux frame transmit function
2000  *
2001  * Description:
2002  *      The system calls this function to send frames onto the wire.
2003  *      It puts the frame in the tx descriptor ring. If the ring is
2004  *      full then, the 'tbusy' flag is set.
2005  *
2006  * Returns:
2007  *      0, if everything is ok
2008  *      !=0, on error
2009  * WARNING: returning 1 in 'tbusy' case caused system crashes (double
2010  *      allocated skb's) !!!
2011  */
2012 #if 0
2013 static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2014 #else
2015 int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev)
2016 #endif
2017 {
2018 DEV_NET         *pNet;
2019 SK_AC           *pAC;
2020 int                     Rc;     /* return code of XmitFrame */
2021
2022         pNet = (DEV_NET*) dev->priv;
2023         pAC = pNet->pAC;
2024
2025 #if 0
2026         if ((!skb_shinfo(skb)->nr_frags) ||
2027 #else
2028         if (1 ||
2029 #endif
2030                 (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) {
2031                 /* Don't activate scatter-gather and hardware checksum */
2032
2033                 if (pAC->RlmtNets == 2)
2034                         Rc = XmitFrame(
2035                                 pAC,
2036                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2037                                 skb);
2038                 else
2039                         Rc = XmitFrame(
2040                                 pAC,
2041                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2042                                 skb);
2043         } else {
2044 #if 0
2045                 /* scatter-gather and hardware TCP checksumming anabled*/
2046                 if (pAC->RlmtNets == 2)
2047                         Rc = XmitFrameSG(
2048                                 pAC,
2049                                 &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW],
2050                                 skb);
2051                 else
2052                         Rc = XmitFrameSG(
2053                                 pAC,
2054                                 &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW],
2055                                 skb);
2056 #endif
2057         }
2058
2059         /* Transmitter out of resources? */
2060         if (Rc <= 0) {
2061                 netif_stop_queue(dev);
2062         }
2063
2064         /* If not taken, give buffer ownership back to the
2065          * queueing layer.
2066          */
2067         if (Rc < 0)
2068                 return (1);
2069
2070 #if 0
2071         dev->trans_start = jiffies;
2072 #endif
2073         return (0);
2074 } /* SkGeXmit */
2075
2076
2077 /*****************************************************************************
2078  *
2079  *      XmitFrame - fill one socket buffer into the transmit ring
2080  *
2081  * Description:
2082  *      This function puts a message into the transmit descriptor ring
2083  *      if there is a descriptors left.
2084  *      Linux skb's consist of only one continuous buffer.
2085  *      The first step locks the ring. It is held locked
2086  *      all time to avoid problems with SWITCH_../PORT_RESET.
2087  *      Then the descriptoris allocated.
2088  *      The second part is linking the buffer to the descriptor.
2089  *      At the very last, the Control field of the descriptor
2090  *      is made valid for the BMU and a start TX command is given
2091  *      if necessary.
2092  *
2093  * Returns:
2094  *      > 0 - on succes: the number of bytes in the message
2095  *      = 0 - on resource shortage: this frame sent or dropped, now
2096  *              the ring is full ( -> set tbusy)
2097  *      < 0 - on failure: other problems ( -> return failure to upper layers)
2098  */
2099 static int XmitFrame(
2100 SK_AC           *pAC,           /* pointer to adapter context */
2101 TX_PORT         *pTxPort,       /* pointer to struct of port to send to */
2102 struct sk_buff  *pMessage)      /* pointer to send-message */
2103 {
2104 TXD             *pTxd;          /* the rxd to fill */
2105 unsigned long   Flags;
2106 SK_U64          PhysAddr;
2107 int             BytesSend;
2108
2109         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
2110                 ("X"));
2111
2112         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2113 #ifndef USE_TX_COMPLETE
2114         FreeTxDescriptors(pAC, pTxPort);
2115 #endif
2116         if (pTxPort->TxdRingFree == 0) {
2117                 /* no enough free descriptors in ring at the moment */
2118                 FreeTxDescriptors(pAC, pTxPort);
2119                 if (pTxPort->TxdRingFree == 0) {
2120                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2121                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2122                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2123                                 SK_DBGCAT_DRV_TX_PROGRESS,
2124                                 ("XmitFrame failed\n"));
2125                         /* this message can not be sent now */
2126                         /* Because tbusy seems to be set, the message should not be freed here */
2127                         /* It will be used by the scheduler of the ethernet handler */
2128                         return (-1);
2129                 }
2130         }
2131         /* advance head counter behind descriptor needed for this frame */
2132         pTxd = pTxPort->pTxdRingHead;
2133         pTxPort->pTxdRingHead = pTxd->pNextTxd;
2134         pTxPort->TxdRingFree--;
2135         /* the needed descriptor is reserved now */
2136
2137         /*
2138          * everything allocated ok, so add buffer to descriptor
2139          */
2140
2141 #ifdef SK_DUMP_TX
2142         DumpMsg(pMessage, "XmitFrame");
2143 #endif
2144
2145         /* set up descriptor and CONTROL dword */
2146 #if 0
2147         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2148                 virt_to_page(pMessage->data),
2149                 ((unsigned long) pMessage->data &
2150                 ~PAGE_MASK),
2151                 pMessage->len,
2152                 PCI_DMA_TODEVICE);
2153 #else
2154         PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32) pMessage->data);
2155 #endif
2156         pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2157         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2158         pTxd->pMBuf = pMessage;
2159         pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF |
2160                 TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE |
2161 #ifdef USE_TX_COMPLETE
2162                 TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len;
2163 #else
2164                 TX_CTRL_EOF | pMessage->len;
2165 #endif
2166
2167         if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2168                 /* previous descriptor already done, so give tx start cmd */
2169                 /* StartTx(pAC, pTxPort->HwAddr); */
2170                 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2171         }
2172         pTxPort->pTxdRingPrev = pTxd;
2173
2174
2175         BytesSend = pMessage->len;
2176         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2177         /* after releasing the lock, the skb may be immidiately freed */
2178         if (pTxPort->TxdRingFree != 0)
2179                 return (BytesSend);
2180         else
2181                 return (0);
2182
2183 } /* XmitFrame */
2184
2185 /*****************************************************************************
2186  *
2187  *      XmitFrameSG - fill one socket buffer into the transmit ring
2188  *                (use SG and TCP/UDP hardware checksumming)
2189  *
2190  * Description:
2191  *      This function puts a message into the transmit descriptor ring
2192  *      if there is a descriptors left.
2193  *
2194  * Returns:
2195  *      > 0 - on succes: the number of bytes in the message
2196  *      = 0 - on resource shortage: this frame sent or dropped, now
2197  *              the ring is full ( -> set tbusy)
2198  *      < 0 - on failure: other problems ( -> return failure to upper layers)
2199  */
2200 #if 0
2201 static int XmitFrameSG(
2202 SK_AC           *pAC,                   /* pointer to adapter context */
2203 TX_PORT         *pTxPort,               /* pointer to struct of port to send to */
2204 struct sk_buff  *pMessage)      /* pointer to send-message */
2205 {
2206
2207         int             i;
2208         int                     BytesSend;
2209         int                     hlength;
2210         int                     protocol;
2211         skb_frag_t              *sk_frag;
2212         TXD                     *pTxd;
2213         TXD                     *pTxdFst;
2214         TXD                     *pTxdLst;
2215         SK_U64          PhysAddr;
2216         unsigned long   Flags;
2217
2218         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2219 #ifndef USE_TX_COMPLETE
2220         FreeTxDescriptors(pAC, pTxPort);
2221 #endif
2222         if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) {
2223                 FreeTxDescriptors(pAC, pTxPort);
2224                 if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) {
2225                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2226                         SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex);
2227                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2228                                 SK_DBGCAT_DRV_TX_PROGRESS,
2229                                 ("XmitFrameSG failed - Ring full\n"));
2230                                 /* this message can not be sent now */
2231                         return(-1);
2232                 }
2233         }
2234
2235
2236         pTxd = pTxPort->pTxdRingHead;
2237         pTxdFst = pTxd;
2238         pTxdLst = pTxd;
2239         BytesSend = 0;
2240         protocol = 0;
2241
2242         /* map first fragment (header) */
2243         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2244                         virt_to_page(pMessage->data),
2245                         ((unsigned long) pMessage->data & ~PAGE_MASK),
2246                         skb_headlen(pMessage),
2247                         PCI_DMA_TODEVICE);
2248
2249         pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2250         pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2251
2252         /* HW checksum? */
2253         if (pMessage->ip_summed == CHECKSUM_HW) {
2254                 pTxd->TBControl = TX_CTRL_STF |
2255                                   TX_CTRL_ST_FWD |
2256                                   skb_headlen(pMessage);
2257
2258                 /* We have to use the opcode for tcp here because the opcode for
2259                 udp is not working in the hardware yet (revision 2.0)*/
2260                 protocol = ((SK_U8)pMessage->data[23] & 0xf);
2261                 if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2262                         pTxd->TBControl |=  BMU_UDP_CHECK;
2263                 else
2264                         pTxd->TBControl |= BMU_TCP_CHECK ;
2265
2266                 hlength = ((SK_U8)pMessage->data[14] & 0xf) * 4;
2267                 pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */
2268                 pTxd->TcpSumSt = 14+hlength+16;
2269                 pTxd->TcpSumWr = 14+hlength;
2270
2271         } else {
2272                 pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
2273                                   TX_CTRL_SOFTWARE |
2274                                   TX_CTRL_STF |
2275                                   skb_headlen(pMessage);
2276         }
2277
2278         pTxd = pTxd->pNextTxd;
2279         pTxPort->TxdRingFree--;
2280         BytesSend += skb_headlen(pMessage);
2281
2282
2283         /* Map SG fragments */
2284         for (i = 0; i < skb_shinfo(pMessage)->nr_frags; i++) {
2285                 sk_frag = &skb_shinfo(pMessage)->frags[i];
2286
2287                 /* we already have the proper value in entry */
2288                 PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2289                                                  sk_frag->page,
2290                                                  sk_frag->page_offset,
2291                                                  sk_frag->size,
2292                                                  PCI_DMA_TODEVICE);
2293
2294                 pTxd->VDataLow = (SK_U32)  (PhysAddr & 0xffffffff);
2295                 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2296                 pTxd->pMBuf = pMessage;
2297
2298                 /* HW checksum */
2299                 if (pMessage->ip_summed == CHECKSUM_HW) {
2300                         pTxd->TBControl = TX_CTRL_OWN_BMU |
2301                                           TX_CTRL_SOFTWARE |
2302                                           TX_CTRL_ST_FWD;
2303
2304                         /* We have to use the opcode for tcp here because the opcode for
2305                         udp is not working in the hardware yet (revision 2.0)*/
2306                         if ((protocol == 17) && (pAC->GIni.GIChipRev != 0))
2307                                 pTxd->TBControl |= BMU_UDP_CHECK ;
2308                         else
2309                                 pTxd->TBControl |= BMU_TCP_CHECK ;
2310
2311                 } else {
2312                         pTxd->TBControl = TX_CTRL_CHECK_DEFAULT |
2313                                           TX_CTRL_SOFTWARE |
2314                                           TX_CTRL_OWN_BMU;
2315                 }
2316
2317                 /* Last fragment  */
2318                 if( (i+1) == skb_shinfo(pMessage)->nr_frags )  {
2319 #ifdef USE_TX_COMPLETE
2320                         pTxd->TBControl |= TX_CTRL_EOF |
2321                                            TX_CTRL_EOF_IRQ |
2322                                            sk_frag->size;
2323 #else
2324                         pTxd->TBControl |= TX_CTRL_EOF |
2325                                            sk_frag->size;
2326 #endif
2327                         pTxdFst->TBControl |= TX_CTRL_OWN_BMU |
2328                                               TX_CTRL_SOFTWARE;
2329
2330                 } else {
2331                         pTxd->TBControl |= sk_frag->size;
2332                 }
2333                 pTxdLst = pTxd;
2334                 pTxd = pTxd->pNextTxd;
2335                 pTxPort->TxdRingFree--;
2336                 BytesSend += sk_frag->size;
2337         }
2338
2339         if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
2340                 /* previous descriptor already done, so give tx start cmd */
2341                 /* StartTx(pAC, pTxPort->HwAddr); */
2342                 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
2343         }
2344
2345         pTxPort->pTxdRingPrev = pTxdLst;
2346         pTxPort->pTxdRingHead = pTxd;
2347
2348         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2349
2350         if (pTxPort->TxdRingFree > 0)
2351                 return (BytesSend);
2352         else
2353                 return (0);
2354 }
2355 #endif
2356
2357
2358 void dump_frag( SK_U8 *data, int length)
2359 {
2360         int i;
2361
2362         printk("Length: %d\n", length);
2363         for( i=0; i < length; i++ ) {
2364                 printk(" %02x", (SK_U8)*(data + i) );
2365                 if( !((i+1) % 20) )
2366                   printk("\n");
2367         }
2368         printk("\n\n");
2369
2370 }
2371
2372
2373 /*****************************************************************************
2374  *
2375  *      FreeTxDescriptors - release descriptors from the descriptor ring
2376  *
2377  * Description:
2378  *      This function releases descriptors from a transmit ring if they
2379  *      have been sent by the BMU.
2380  *      If a descriptors is sent, it can be freed and the message can
2381  *      be freed, too.
2382  *      The SOFTWARE controllable bit is used to prevent running around a
2383  *      completely free ring for ever. If this bit is no set in the
2384  *      frame (by XmitFrame), this frame has never been sent or is
2385  *      already freed.
2386  *      The Tx descriptor ring lock must be held while calling this function !!!
2387  *
2388  * Returns:
2389  *      none
2390  */
2391 static void FreeTxDescriptors(
2392 SK_AC   *pAC,           /* pointer to the adapter context */
2393 TX_PORT *pTxPort)       /* pointer to destination port structure */
2394 {
2395 TXD     *pTxd;          /* pointer to the checked descriptor */
2396 TXD     *pNewTail;      /* pointer to 'end' of the ring */
2397 SK_U32  Control;        /* TBControl field of descriptor */
2398 SK_U64  PhysAddr;       /* address of DMA mapping */
2399
2400         pNewTail = pTxPort->pTxdRingTail;
2401         pTxd = pNewTail;
2402         /*
2403          * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame
2404          * or TX_CTRL_OWN_BMU bit set in any frame
2405          */
2406         while (1) {
2407                 Control = pTxd->TBControl;
2408                 if ((Control & TX_CTRL_SOFTWARE) == 0) {
2409                         /*
2410                          * software controllable bit is set in first
2411                          * fragment when given to BMU. Not set means that
2412                          * this fragment was never sent or is already
2413                          * freed ( -> ring completely free now).
2414                          */
2415                         pTxPort->pTxdRingTail = pTxd;
2416                         netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2417                         return;
2418                 }
2419                 if (Control & TX_CTRL_OWN_BMU) {
2420                         pTxPort->pTxdRingTail = pTxd;
2421                         if (pTxPort->TxdRingFree > 0) {
2422                                 netif_wake_queue(pAC->dev[pTxPort->PortIndex]);
2423                         }
2424                         return;
2425                 }
2426
2427                 /* release the DMA mapping */
2428                 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
2429                 PhysAddr |= (SK_U64) pTxd->VDataLow;
2430                 pci_unmap_page(pAC->PciDev, PhysAddr,
2431                                  pTxd->pMBuf->len,
2432                                  PCI_DMA_TODEVICE);
2433
2434                 if (Control & TX_CTRL_EOF)
2435                         DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */
2436
2437                 pTxPort->TxdRingFree++;
2438                 pTxd->TBControl &= ~TX_CTRL_SOFTWARE;
2439                 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
2440         } /* while(forever) */
2441 } /* FreeTxDescriptors */
2442
2443 /*****************************************************************************
2444  *
2445  *      FillRxRing - fill the receive ring with valid descriptors
2446  *
2447  * Description:
2448  *      This function fills the receive ring descriptors with data
2449  *      segments and makes them valid for the BMU.
2450  *      The active ring is filled completely, if possible.
2451  *      The non-active ring is filled only partial to save memory.
2452  *
2453  * Description of rx ring structure:
2454  *      head - points to the descriptor which will be used next by the BMU
2455  *      tail - points to the next descriptor to give to the BMU
2456  *
2457  * Returns:     N/A
2458  */
2459 static void FillRxRing(
2460 SK_AC           *pAC,           /* pointer to the adapter context */
2461 RX_PORT         *pRxPort)       /* ptr to port struct for which the ring
2462                                    should be filled */
2463 {
2464 unsigned long   Flags;
2465
2466         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2467         while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
2468                 if(!FillRxDescriptor(pAC, pRxPort))
2469                         break;
2470         }
2471         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2472 } /* FillRxRing */
2473
2474
2475 /*****************************************************************************
2476  *
2477  *      FillRxDescriptor - fill one buffer into the receive ring
2478  *
2479  * Description:
2480  *      The function allocates a new receive buffer and
2481  *      puts it into the next descriptor.
2482  *
2483  * Returns:
2484  *      SK_TRUE - a buffer was added to the ring
2485  *      SK_FALSE - a buffer could not be added
2486  */
2487 static SK_BOOL FillRxDescriptor(
2488 SK_AC           *pAC,           /* pointer to the adapter context struct */
2489 RX_PORT         *pRxPort)       /* ptr to port struct of ring to fill */
2490 {
2491 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
2492 RXD             *pRxd;          /* the rxd to fill */
2493 SK_U16          Length;         /* data fragment length */
2494 SK_U64          PhysAddr;       /* physical address of a rx buffer */
2495
2496         pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
2497         if (pMsgBlock == NULL) {
2498                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2499                         SK_DBGCAT_DRV_ENTRY,
2500                         ("%s: Allocation of rx buffer failed !\n",
2501                         pAC->dev[pRxPort->PortIndex]->name));
2502                 SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex);
2503                 return(SK_FALSE);
2504         }
2505         skb_reserve(pMsgBlock, 2); /* to align IP frames */
2506         /* skb allocated ok, so add buffer */
2507         pRxd = pRxPort->pRxdRingTail;
2508         pRxPort->pRxdRingTail = pRxd->pNextRxd;
2509         pRxPort->RxdRingFree--;
2510         Length = pAC->RxBufSize;
2511 #if 0
2512         PhysAddr = (SK_U64) pci_map_page(pAC->PciDev,
2513                 virt_to_page(pMsgBlock->data),
2514                 ((unsigned long) pMsgBlock->data &
2515                 ~PAGE_MASK),
2516                 pAC->RxBufSize - 2,
2517                 PCI_DMA_FROMDEVICE);
2518 #else
2519         PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32)pMsgBlock->data);
2520 #endif
2521         pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
2522         pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
2523         pRxd->pMBuf = pMsgBlock;
2524         pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2525                 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2526         return (SK_TRUE);
2527
2528 } /* FillRxDescriptor */
2529
2530
2531 /*****************************************************************************
2532  *
2533  *      ReQueueRxBuffer - fill one buffer back into the receive ring
2534  *
2535  * Description:
2536  *      Fill a given buffer back into the rx ring. The buffer
2537  *      has been previously allocated and aligned, and its phys.
2538  *      address calculated, so this is no more necessary.
2539  *
2540  * Returns: N/A
2541  */
2542 static void ReQueueRxBuffer(
2543 SK_AC           *pAC,           /* pointer to the adapter context struct */
2544 RX_PORT         *pRxPort,       /* ptr to port struct of ring to fill */
2545 struct sk_buff  *pMsg,          /* pointer to the buffer */
2546 SK_U32          PhysHigh,       /* phys address high dword */
2547 SK_U32          PhysLow)        /* phys address low dword */
2548 {
2549 RXD             *pRxd;          /* the rxd to fill */
2550 SK_U16          Length;         /* data fragment length */
2551
2552         pRxd = pRxPort->pRxdRingTail;
2553         pRxPort->pRxdRingTail = pRxd->pNextRxd;
2554         pRxPort->RxdRingFree--;
2555         Length = pAC->RxBufSize;
2556         pRxd->VDataLow = PhysLow;
2557         pRxd->VDataHigh = PhysHigh;
2558         pRxd->pMBuf = pMsg;
2559         pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
2560                 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
2561         return;
2562 } /* ReQueueRxBuffer */
2563
2564
2565 /*****************************************************************************
2566  *
2567  *      ReceiveIrq - handle a receive IRQ
2568  *
2569  * Description:
2570  *      This function is called when a receive IRQ is set.
2571  *      It walks the receive descriptor ring and sends up all
2572  *      frames that are complete.
2573  *
2574  * Returns:     N/A
2575  */
2576 #if 0
2577 static void ReceiveIrq(
2578 #else
2579 void ReceiveIrq(
2580 #endif
2581         SK_AC           *pAC,                   /* pointer to adapter context */
2582         RX_PORT         *pRxPort,               /* pointer to receive port struct */
2583         SK_BOOL         SlowPathLock)   /* indicates if SlowPathLock is needed */
2584 {
2585 RXD                             *pRxd;                  /* pointer to receive descriptors */
2586 SK_U32                  Control;                /* control field of descriptor */
2587 struct sk_buff  *pMsg;                  /* pointer to message holding frame */
2588 struct sk_buff  *pNewMsg;               /* pointer to a new message for copying frame */
2589 int                             FrameLength;    /* total length of received frame */
2590 SK_MBUF                 *pRlmtMbuf;             /* ptr to a buffer for giving a frame to rlmt */
2591 SK_EVPARA               EvPara;                 /* an event parameter union */
2592 unsigned long   Flags;                  /* for spin lock */
2593 int                             PortIndex = pRxPort->PortIndex;
2594 unsigned int    Offset;
2595 unsigned int    NumBytes;
2596 unsigned int    ForRlmt;
2597 SK_BOOL                 IsBc;
2598 SK_BOOL                 IsMc;
2599 SK_BOOL  IsBadFrame;                    /* Bad frame */
2600
2601 SK_U32                  FrameStat;
2602 unsigned short  Csum1;
2603 unsigned short  Csum2;
2604 unsigned short  Type;
2605 #if 0
2606 int                             Result;
2607 #endif
2608 SK_U64                  PhysAddr;
2609
2610 rx_start:
2611         /* do forever; exit if RX_CTRL_OWN_BMU found */
2612         for ( pRxd = pRxPort->pRxdRingHead ;
2613                   pRxPort->RxdRingFree < pAC->RxDescrPerRing ;
2614                   pRxd = pRxd->pNextRxd,
2615                   pRxPort->pRxdRingHead = pRxd,
2616                   pRxPort->RxdRingFree ++) {
2617
2618                 /*
2619                  * For a better understanding of this loop
2620                  * Go through every descriptor beginning at the head
2621                  * Please note: the ring might be completely received so the OWN bit
2622                  * set is not a good crirteria to leave that loop.
2623                  * Therefore the RingFree counter is used.
2624                  * On entry of this loop pRxd is a pointer to the Rxd that needs
2625                  * to be checked next.
2626                  */
2627
2628                 Control = pRxd->RBControl;
2629
2630                 /* check if this descriptor is ready */
2631                 if ((Control & RX_CTRL_OWN_BMU) != 0) {
2632                         /* this descriptor is not yet ready */
2633                         /* This is the usual end of the loop */
2634                         /* We don't need to start the ring again */
2635                         FillRxRing(pAC, pRxPort);
2636                         return;
2637                 }
2638
2639                 /* get length of frame and check it */
2640                 FrameLength = Control & RX_CTRL_LEN_MASK;
2641                 if (FrameLength > pAC->RxBufSize) {
2642                         goto rx_failed;
2643                 }
2644
2645                 /* check for STF and EOF */
2646                 if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) !=
2647                         (RX_CTRL_STF | RX_CTRL_EOF)) {
2648                         goto rx_failed;
2649                 }
2650
2651                 /* here we have a complete frame in the ring */
2652                 pMsg = pRxd->pMBuf;
2653
2654                 FrameStat = pRxd->FrameStat;
2655
2656                 /* check for frame length mismatch */
2657 #define XMR_FS_LEN_SHIFT        18
2658 #define GMR_FS_LEN_SHIFT        16
2659                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2660                         if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) {
2661                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2662                                         SK_DBGCAT_DRV_RX_PROGRESS,
2663                                         ("skge: Frame length mismatch (%u/%u).\n",
2664                                         FrameLength,
2665                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2666                                 goto rx_failed;
2667                         }
2668                 }
2669                 else {
2670                         if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) {
2671                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2672                                         SK_DBGCAT_DRV_RX_PROGRESS,
2673                                         ("skge: Frame length mismatch (%u/%u).\n",
2674                                         FrameLength,
2675                                         (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)));
2676                                 goto rx_failed;
2677                         }
2678                 }
2679
2680                 /* Set Rx Status */
2681                 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
2682                         IsBc = (FrameStat & XMR_FS_BC) != 0;
2683                         IsMc = (FrameStat & XMR_FS_MC) != 0;
2684                         IsBadFrame = (FrameStat &
2685                                 (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0;
2686                 } else {
2687                         IsBc = (FrameStat & GMR_FS_BC) != 0;
2688                         IsMc = (FrameStat & GMR_FS_MC) != 0;
2689                         IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) ||
2690                                                         ((FrameStat & GMR_FS_RX_OK) == 0));
2691                 }
2692
2693                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2694                         ("Received frame of length %d on port %d\n",
2695                         FrameLength, PortIndex));
2696                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0,
2697                         ("Number of free rx descriptors: %d\n",
2698                         pRxPort->RxdRingFree));
2699 /* DumpMsg(pMsg, "Rx"); */
2700
2701                 if ((Control & RX_CTRL_STAT_VALID) != RX_CTRL_STAT_VALID ||
2702                         (IsBadFrame)) {
2703 #if 0
2704                         (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) {
2705 #endif
2706                         /* there is a receive error in this frame */
2707                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2708                                 SK_DBGCAT_DRV_RX_PROGRESS,
2709                                 ("skge: Error in received frame, dropped!\n"
2710                                 "Control: %x\nRxStat: %x\n",
2711                                 Control, FrameStat));
2712
2713                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2714                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2715                         pci_dma_sync_single(pAC->PciDev,
2716                                                 (dma_addr_t) PhysAddr,
2717                                                 FrameLength,
2718                                                 PCI_DMA_FROMDEVICE);
2719                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2720                                 pRxd->VDataHigh, pRxd->VDataLow);
2721
2722                         continue;
2723                 }
2724
2725                 /*
2726                  * if short frame then copy data to reduce memory waste
2727                  */
2728                 if ((FrameLength < SK_COPY_THRESHOLD) &&
2729                         ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) {
2730                         /*
2731                          * Short frame detected and allocation successfull
2732                          */
2733                         /* use new skb and copy data */
2734                         skb_reserve(pNewMsg, 2);
2735                         skb_put(pNewMsg, FrameLength);
2736                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2737                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2738
2739                         pci_dma_sync_single(pAC->PciDev,
2740                                                 (dma_addr_t) PhysAddr,
2741                                                 FrameLength,
2742                                                 PCI_DMA_FROMDEVICE);
2743                         eth_copy_and_sum(pNewMsg, pMsg->data,
2744                                 FrameLength, 0);
2745                         ReQueueRxBuffer(pAC, pRxPort, pMsg,
2746                                 pRxd->VDataHigh, pRxd->VDataLow);
2747                         pMsg = pNewMsg;
2748
2749                 }
2750                 else {
2751                         /*
2752                          * if large frame, or SKB allocation failed, pass
2753                          * the SKB directly to the networking
2754                          */
2755
2756                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2757                         PhysAddr |= (SK_U64) pRxd->VDataLow;
2758
2759                         /* release the DMA mapping */
2760                         pci_unmap_single(pAC->PciDev,
2761                                          PhysAddr,
2762                                          pAC->RxBufSize - 2,
2763                                          PCI_DMA_FROMDEVICE);
2764
2765                         /* set length in message */
2766                         skb_put(pMsg, FrameLength);
2767                         /* hardware checksum */
2768                         Type = ntohs(*((short*)&pMsg->data[12]));
2769                         if (Type == 0x800) {
2770                                 Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff);
2771                                 Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
2772 #if 0
2773                                 if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) &&
2774                                         (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) ||
2775                                         (pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
2776                                         Result = SkCsGetReceiveInfo(pAC,
2777                                                 &pMsg->data[14],
2778                                                 Csum1, Csum2, pRxPort->PortIndex);
2779                                         if (Result ==
2780                                                 SKCS_STATUS_IP_FRAGMENT ||
2781                                                 Result ==
2782                                                 SKCS_STATUS_IP_CSUM_OK ||
2783                                                 Result ==
2784                                                 SKCS_STATUS_TCP_CSUM_OK ||
2785                                                 Result ==
2786                                                 SKCS_STATUS_UDP_CSUM_OK) {
2787                                                         pMsg->ip_summed =
2788                                                         CHECKSUM_UNNECESSARY;
2789                                         } else {
2790                                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2791                                                 SK_DBGCAT_DRV_RX_PROGRESS,
2792                                                 ("skge: CRC error. Frame dropped!\n"));
2793                                                 goto rx_failed;
2794                                         }
2795                                 }/* checksumControl calculation valid */
2796 #endif
2797                         } /* IP frame */
2798                 } /* frame > SK_COPY_TRESHOLD */
2799
2800                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V"));
2801                 ForRlmt = SK_RLMT_RX_PROTOCOL;
2802 #if 0
2803                 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
2804 #endif
2805                 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
2806                         IsBc, &Offset, &NumBytes);
2807                 if (NumBytes != 0) {
2808 #if 0
2809                         IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
2810 #endif
2811                         SK_RLMT_LOOKAHEAD(pAC, PortIndex,
2812                                 &pMsg->data[Offset],
2813                                 IsBc, IsMc, &ForRlmt);
2814                 }
2815                 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
2816                                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W"));
2817                         /* send up only frames from active port */
2818                         if ((PortIndex == pAC->ActivePort) ||
2819                                 (pAC->RlmtNets == 2)) {
2820                                 /* frame for upper layer */
2821                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U"));
2822 #ifdef xDEBUG
2823                                 DumpMsg(pMsg, "Rx");
2824 #endif
2825                                 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2826                                         FrameLength, pRxPort->PortIndex);
2827
2828 #if 0
2829                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2830                                 pMsg->protocol = eth_type_trans(pMsg,
2831                                         pAC->dev[pRxPort->PortIndex]);
2832                                 netif_rx(pMsg);
2833                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2834 #else
2835                                 NetReceive(pMsg->data, pMsg->len);
2836                                 dev_kfree_skb_any(pMsg);
2837 #endif
2838                         }
2839                         else {
2840                                 /* drop frame */
2841                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2842                                         SK_DBGCAT_DRV_RX_PROGRESS,
2843                                         ("D"));
2844                                 DEV_KFREE_SKB(pMsg);
2845                         }
2846
2847                 } /* if not for rlmt */
2848                 else {
2849                         /* packet for rlmt */
2850                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2851                                 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2852                         pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2853                                 pAC->IoBase, FrameLength);
2854                         if (pRlmtMbuf != NULL) {
2855                                 pRlmtMbuf->pNext = NULL;
2856                                 pRlmtMbuf->Length = FrameLength;
2857                                 pRlmtMbuf->PortIdx = PortIndex;
2858                                 EvPara.pParaPtr = pRlmtMbuf;
2859                                 memcpy((char*)(pRlmtMbuf->pData),
2860                                            (char*)(pMsg->data),
2861                                            FrameLength);
2862
2863                                 /* SlowPathLock needed? */
2864                                 if (SlowPathLock == SK_TRUE) {
2865                                         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2866                                         SkEventQueue(pAC, SKGE_RLMT,
2867                                                 SK_RLMT_PACKET_RECEIVED,
2868                                                 EvPara);
2869                                         pAC->CheckQueue = SK_TRUE;
2870                                         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2871                                 } else {
2872                                         SkEventQueue(pAC, SKGE_RLMT,
2873                                                 SK_RLMT_PACKET_RECEIVED,
2874                                                 EvPara);
2875                                         pAC->CheckQueue = SK_TRUE;
2876                                 }
2877
2878                                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2879                                         SK_DBGCAT_DRV_RX_PROGRESS,
2880                                         ("Q"));
2881                         }
2882 #if 0
2883                         if ((pAC->dev[pRxPort->PortIndex]->flags &
2884                                 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2885                                 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2886                                 SK_RLMT_RX_PROTOCOL) {
2887                                 pMsg->dev = pAC->dev[pRxPort->PortIndex];
2888                                 pMsg->protocol = eth_type_trans(pMsg,
2889                                         pAC->dev[pRxPort->PortIndex]);
2890                                 netif_rx(pMsg);
2891                                 pAC->dev[pRxPort->PortIndex]->last_rx = jiffies;
2892                         }
2893 #else
2894                         if (0) {
2895                         }
2896 #endif
2897                         else {
2898                                 DEV_KFREE_SKB(pMsg);
2899                         }
2900
2901                 } /* if packet for rlmt */
2902         } /* for ... scanning the RXD ring */
2903
2904         /* RXD ring is empty -> fill and restart */
2905         FillRxRing(pAC, pRxPort);
2906         /* do not start if called from Close */
2907         if (pAC->BoardLevel > 0) {
2908                 ClearAndStartRx(pAC, PortIndex);
2909         }
2910         return;
2911
2912 rx_failed:
2913         /* remove error frame */
2914         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2915                 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2916
2917         /* release the DMA mapping */
2918
2919         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2920         PhysAddr |= (SK_U64) pRxd->VDataLow;
2921         pci_unmap_page(pAC->PciDev,
2922                          PhysAddr,
2923                          pAC->RxBufSize - 2,
2924                          PCI_DMA_FROMDEVICE);
2925         DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2926         pRxd->pMBuf = NULL;
2927         pRxPort->RxdRingFree++;
2928         pRxPort->pRxdRingHead = pRxd->pNextRxd;
2929         goto rx_start;
2930
2931 } /* ReceiveIrq */
2932
2933
2934 /*****************************************************************************
2935  *
2936  *      ClearAndStartRx - give a start receive command to BMU, clear IRQ
2937  *
2938  * Description:
2939  *      This function sends a start command and a clear interrupt
2940  *      command for one receive queue to the BMU.
2941  *
2942  * Returns: N/A
2943  *      none
2944  */
2945 static void ClearAndStartRx(
2946 SK_AC   *pAC,           /* pointer to the adapter context */
2947 int     PortIndex)      /* index of the receive port (XMAC) */
2948 {
2949         SK_OUT8(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CTRL,
2950                 RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF);
2951 } /* ClearAndStartRx */
2952
2953
2954 /*****************************************************************************
2955  *
2956  *      ClearTxIrq - give a clear transmit IRQ command to BMU
2957  *
2958  * Description:
2959  *      This function sends a clear tx IRQ command for one
2960  *      transmit queue to the BMU.
2961  *
2962  * Returns: N/A
2963  */
2964 static void ClearTxIrq(
2965 SK_AC   *pAC,           /* pointer to the adapter context */
2966 int     PortIndex,      /* index of the transmit port (XMAC) */
2967 int     Prio)           /* priority or normal queue */
2968 {
2969         SK_OUT8(pAC->IoBase, TxQueueAddr[PortIndex][Prio]+TX_Q_CTRL,
2970                 TX_Q_CTRL_CLR_I_EOF);
2971 } /* ClearTxIrq */
2972
2973
2974 /*****************************************************************************
2975  *
2976  *      ClearRxRing - remove all buffers from the receive ring
2977  *
2978  * Description:
2979  *      This function removes all receive buffers from the ring.
2980  *      The receive BMU must be stopped before calling this function.
2981  *
2982  * Returns: N/A
2983  */
2984 static void ClearRxRing(
2985 SK_AC   *pAC,           /* pointer to adapter context */
2986 RX_PORT *pRxPort)       /* pointer to rx port struct */
2987 {
2988 RXD             *pRxd;  /* pointer to the current descriptor */
2989 unsigned long   Flags;
2990 SK_U64          PhysAddr;
2991
2992         if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2993                 return;
2994         }
2995         spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2996         pRxd = pRxPort->pRxdRingHead;
2997         do {
2998                 if (pRxd->pMBuf != NULL) {
2999
3000                         PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
3001                         PhysAddr |= (SK_U64) pRxd->VDataLow;
3002                         pci_unmap_page(pAC->PciDev,
3003                                          PhysAddr,
3004                                          pAC->RxBufSize - 2,
3005                                          PCI_DMA_FROMDEVICE);
3006                         DEV_KFREE_SKB(pRxd->pMBuf);
3007                         pRxd->pMBuf = NULL;
3008                 }
3009                 pRxd->RBControl &= RX_CTRL_OWN_BMU;
3010                 pRxd = pRxd->pNextRxd;
3011                 pRxPort->RxdRingFree++;
3012         } while (pRxd != pRxPort->pRxdRingTail);
3013         pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
3014         spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
3015 } /* ClearRxRing */
3016
3017
3018 /*****************************************************************************
3019  *
3020  *      ClearTxRing - remove all buffers from the transmit ring
3021  *
3022  * Description:
3023  *      This function removes all transmit buffers from the ring.
3024  *      The transmit BMU must be stopped before calling this function
3025  *      and transmitting at the upper level must be disabled.
3026  *      The BMU own bit of all descriptors is cleared, the rest is
3027  *      done by calling FreeTxDescriptors.
3028  *
3029  * Returns: N/A
3030  */
3031 static void ClearTxRing(
3032 SK_AC   *pAC,           /* pointer to adapter context */
3033 TX_PORT *pTxPort)       /* pointer to tx prt struct */
3034 {
3035 TXD             *pTxd;          /* pointer to the current descriptor */
3036 int             i;
3037 unsigned long   Flags;
3038
3039         spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
3040         pTxd = pTxPort->pTxdRingHead;
3041         for (i=0; i<pAC->TxDescrPerRing; i++) {
3042                 pTxd->TBControl &= ~TX_CTRL_OWN_BMU;
3043                 pTxd = pTxd->pNextTxd;
3044         }
3045         FreeTxDescriptors(pAC, pTxPort);
3046         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
3047 } /* ClearTxRing */
3048
3049
3050 #if 0
3051 /*****************************************************************************
3052  *
3053  *      SetQueueSizes - configure the sizes of rx and tx queues
3054  *
3055  * Description:
3056  *      This function assigns the sizes for active and passive port
3057  *      to the appropriate HWinit structure variables.
3058  *      The passive port(s) get standard values, all remaining RAM
3059  *      is given to the active port.
3060  *      The queue sizes are in kbyte and must be multiple of 8.
3061  *      The limits for the number of buffers filled into the rx rings
3062  *      is also set in this routine.
3063  *
3064  * Returns:
3065  *      none
3066  */
3067 static void SetQueueSizes(
3068 SK_AC   *pAC)   /* pointer to the adapter context */
3069 {
3070 int     StandbyRam;     /* adapter RAM used for a standby port */
3071 int     RemainingRam;   /* adapter RAM available for the active port */
3072 int     RxRam;          /* RAM used for the active port receive queue */
3073 int     i;              /* loop counter */
3074
3075 if (pAC->RlmtNets == 1) {
3076         StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE +
3077                 SK_RLMT_STANDBY_QXSSIZE;
3078         RemainingRam = pAC->GIni.GIRamSize -
3079                 (pAC->GIni.GIMacsFound-1) * StandbyRam;
3080         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3081                 pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE;
3082                 pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE;
3083                 pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE;
3084         }
3085         RxRam = (RemainingRam * 8 / 10) & ~7;
3086         pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam;
3087         pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0;
3088         pAC->GIni.GP[pAC->ActivePort].PXAQSize =
3089                 (RemainingRam - RxRam) & ~7;
3090         pAC->RxQueueSize = RxRam;
3091         pAC->TxSQueueSize = 0;
3092         pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3093         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3094                 ("queue sizes settings - rx:%d  txA:%d txS:%d\n",
3095                 pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize));
3096 } else {
3097         RemainingRam = pAC->GIni.GIRamSize/pAC->GIni.GIMacsFound;
3098         RxRam = (RemainingRam * 8 / 10) & ~7;
3099         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3100                 pAC->GIni.GP[i].PRxQSize = RxRam;
3101                 pAC->GIni.GP[i].PXSQSize = 0;
3102                 pAC->GIni.GP[i].PXAQSize = (RemainingRam - RxRam) & ~7;
3103         }
3104
3105         pAC->RxQueueSize = RxRam;
3106         pAC->TxSQueueSize = 0;
3107         pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
3108 }
3109         for (i=0; i<SK_MAX_MACS; i++) {
3110                 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing;
3111         }
3112
3113         if (pAC->RlmtNets == 2) {
3114                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3115                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3116                 }
3117         } else {
3118                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3119                         pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
3120                 }
3121                 /*
3122                  * Do not set the Limit to 0, because this could cause
3123                  * wrap around with ReQueue'ed buffers (a buffer could
3124                  * be requeued in the same position, made accessable to
3125                  * the hardware, and the hardware could change its
3126                  * contents!
3127                  */
3128                 pAC->RxPort[pAC->ActivePort].RxFillLimit = 1;
3129         }
3130
3131 #ifdef DEBUG
3132         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3133                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
3134                         ("i: %d,  RxQSize: %d,  PXSQsize: %d, PXAQSize: %d\n",
3135                         i,
3136                         pAC->GIni.GP[i].PRxQSize,
3137                         pAC->GIni.GP[i].PXSQSize,
3138                         pAC->GIni.GP[i].PXAQSize));
3139         }
3140 #endif
3141 } /* SetQueueSizes */
3142
3143
3144 /*****************************************************************************
3145  *
3146  *      SkGeSetMacAddr - Set the hardware MAC address
3147  *
3148  * Description:
3149  *      This function sets the MAC address used by the adapter.
3150  *
3151  * Returns:
3152  *      0, if everything is ok
3153  *      !=0, on error
3154  */
3155 static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p)
3156 {
3157
3158 DEV_NET *pNet = (DEV_NET*) dev->priv;
3159 SK_AC   *pAC = pNet->pAC;
3160
3161 struct sockaddr *addr = p;
3162 unsigned long   Flags;
3163
3164         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3165                 ("SkGeSetMacAddr starts now...\n"));
3166         if(netif_running(dev))
3167                 return -EBUSY;
3168
3169         memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
3170
3171         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3172
3173         if (pAC->RlmtNets == 2)
3174                 SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr,
3175                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3176         else
3177                 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
3178                         (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
3179
3180
3181         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3182         return 0;
3183 } /* SkGeSetMacAddr */
3184 #endif
3185
3186
3187 /*****************************************************************************
3188  *
3189  *      SkGeSetRxMode - set receive mode
3190  *
3191  * Description:
3192  *      This function sets the receive mode of an adapter. The adapter
3193  *      supports promiscuous mode, allmulticast mode and a number of
3194  *      multicast addresses. If more multicast addresses the available
3195  *      are selected, a hash function in the hardware is used.
3196  *
3197  * Returns:
3198  *      0, if everything is ok
3199  *      !=0, on error
3200  */
3201 #if 0
3202 static void SkGeSetRxMode(struct SK_NET_DEVICE *dev)
3203 {
3204
3205 DEV_NET         *pNet;
3206 SK_AC           *pAC;
3207
3208 struct dev_mc_list      *pMcList;
3209 int                     i;
3210 int                     PortIdx;
3211 unsigned long           Flags;
3212
3213         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3214                 ("SkGeSetRxMode starts now... "));
3215
3216         pNet = (DEV_NET*) dev->priv;
3217         pAC = pNet->pAC;
3218         if (pAC->RlmtNets == 1)
3219                 PortIdx = pAC->ActivePort;
3220         else
3221                 PortIdx = pNet->NetNr;
3222
3223         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3224         if (dev->flags & IFF_PROMISC) {
3225                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3226                         ("PROMISCUOUS mode\n"));
3227                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3228                         SK_PROM_MODE_LLC);
3229         } else if (dev->flags & IFF_ALLMULTI) {
3230                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3231                         ("ALLMULTI mode\n"));
3232                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3233                         SK_PROM_MODE_ALL_MC);
3234         } else {
3235                 SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx,
3236                         SK_PROM_MODE_NONE);
3237                 SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0);
3238
3239                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3240                         ("Number of MC entries: %d ", dev->mc_count));
3241
3242                 pMcList = dev->mc_list;
3243                 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
3244                         SkAddrMcAdd(pAC, pAC->IoBase, PortIdx,
3245                                 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
3246                         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
3247                                 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
3248                                 pMcList->dmi_addr[0],
3249                                 pMcList->dmi_addr[1],
3250                                 pMcList->dmi_addr[2],
3251                                 pMcList->dmi_addr[3],
3252                                 pMcList->dmi_addr[4],
3253                                 pMcList->dmi_addr[5]));
3254                 }
3255                 SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx);
3256         }
3257         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3258
3259         return;
3260 } /* SkGeSetRxMode */
3261
3262
3263 /*****************************************************************************
3264  *
3265  *      SkGeChangeMtu - set the MTU to another value
3266  *
3267  * Description:
3268  *      This function sets is called whenever the MTU size is changed
3269  *      (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
3270  *      ethernet MTU size, long frame support is activated.
3271  *
3272  * Returns:
3273  *      0, if everything is ok
3274  *      !=0, on error
3275  */
3276 static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu)
3277 {
3278 DEV_NET         *pNet;
3279 DEV_NET         *pOtherNet;
3280 SK_AC           *pAC;
3281 unsigned long   Flags;
3282 int             i;
3283 SK_EVPARA       EvPara;
3284
3285         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3286                 ("SkGeChangeMtu starts now...\n"));
3287
3288         pNet = (DEV_NET*) dev->priv;
3289         pAC = pNet->pAC;
3290
3291         if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
3292                 return -EINVAL;
3293         }
3294
3295         if(pAC->BoardLevel != 2) {
3296                 return -EINVAL;
3297         }
3298
3299         pNet->Mtu = NewMtu;
3300         pOtherNet = (DEV_NET*)pAC->dev[1 - pNet->NetNr]->priv;
3301         if ((pOtherNet->Mtu > 1500) && (NewMtu <= 1500) && (pOtherNet->Up==1)) {
3302                 return(0);
3303         }
3304
3305         EvPara.Para32[0] = pNet->NetNr;
3306         EvPara.Para32[1] = -1;
3307
3308         pAC->RxBufSize = NewMtu + 32;
3309         dev->mtu = NewMtu;
3310
3311         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3312                 ("New MTU: %d\n", NewMtu));
3313
3314         /* prevent reconfiguration while changing the MTU */
3315
3316         /* disable interrupts */
3317         SK_OUT32(pAC->IoBase, B0_IMSK, 0);
3318         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3319
3320         /* Found more than one port */
3321         if ((pAC->GIni.GIMacsFound == 2 ) &&
3322                 (pAC->RlmtNets == 2)) {
3323                         /* Stop both ports */
3324                         EvPara.Para32[0] = 0;
3325                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3326                         EvPara.Para32[0] = 1;
3327                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3328         } else {
3329                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
3330         }
3331
3332         SkEventDispatcher(pAC, pAC->IoBase);
3333
3334         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3335                 spin_lock_irqsave(
3336                         &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags);
3337                 netif_stop_queue(pAC->dev[i]);
3338
3339         }
3340
3341         /*
3342          * adjust number of rx buffers allocated
3343          */
3344         if (NewMtu > 1500) {
3345                 /* use less rx buffers */
3346                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3347                         /* Found more than one port */
3348                         if ((pAC->GIni.GIMacsFound == 2 ) &&
3349                                 (pAC->RlmtNets == 2)) {
3350                                         pAC->RxPort[i].RxFillLimit =
3351                                                 pAC->RxDescrPerRing - 100;
3352                         } else {
3353                                 if (i == pAC->ActivePort)
3354                                         pAC->RxPort[i].RxFillLimit =
3355                                                 pAC->RxDescrPerRing - 100;
3356                                 else
3357                                         pAC->RxPort[i].RxFillLimit =
3358                                                 pAC->RxDescrPerRing - 10;
3359                         }
3360                 }
3361         }
3362         else {
3363                 /* use normal amount of rx buffers */
3364                 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3365                         /* Found more than one port */
3366                         if ((pAC->GIni.GIMacsFound == 2 ) &&
3367                                 (pAC->RlmtNets == 2)) {
3368                                         pAC->RxPort[i].RxFillLimit = 1;
3369                         } else {
3370                                 if (i == pAC->ActivePort)
3371                                         pAC->RxPort[i].RxFillLimit = 1;
3372                                 else
3373                                         pAC->RxPort[i].RxFillLimit =
3374                                                 pAC->RxDescrPerRing - 100;
3375                         }
3376                 }
3377         }
3378
3379         SkGeDeInit(pAC, pAC->IoBase);
3380
3381         /*
3382          * enable/disable hardware support for long frames
3383          */
3384         if (NewMtu > 1500) {
3385 /*              pAC->JumboActivated = SK_TRUE; /#* is never set back !!! */
3386                 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
3387         }
3388         else {
3389                 if ((pAC->GIni.GIMacsFound == 2 ) &&
3390                         (pAC->RlmtNets == 2)) {
3391                         pAC->GIni.GIPortUsage = SK_MUL_LINK;
3392                 } else {
3393                         pAC->GIni.GIPortUsage = SK_RED_LINK;
3394                 }
3395         }
3396
3397         SkGeInit(   pAC, pAC->IoBase, 1);
3398         SkI2cInit(  pAC, pAC->IoBase, 1);
3399         SkEventInit(pAC, pAC->IoBase, 1);
3400         SkPnmiInit( pAC, pAC->IoBase, 1);
3401         SkAddrInit( pAC, pAC->IoBase, 1);
3402         SkRlmtInit( pAC, pAC->IoBase, 1);
3403         SkTimerInit(pAC, pAC->IoBase, 1);
3404
3405         /*
3406          * tschilling:
3407          * Speed and others are set back to default in level 1 init!
3408          */
3409         GetConfiguration(pAC);
3410
3411         SkGeInit(   pAC, pAC->IoBase, 2);
3412         SkI2cInit(  pAC, pAC->IoBase, 2);
3413         SkEventInit(pAC, pAC->IoBase, 2);
3414         SkPnmiInit( pAC, pAC->IoBase, 2);
3415         SkAddrInit( pAC, pAC->IoBase, 2);
3416         SkRlmtInit( pAC, pAC->IoBase, 2);
3417         SkTimerInit(pAC, pAC->IoBase, 2);
3418
3419         /*
3420          * clear and reinit the rx rings here
3421          */
3422         for (i=0; i<pAC->GIni.GIMacsFound; i++) {
3423                 ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE);
3424                 ClearRxRing(pAC, &pAC->RxPort[i]);
3425                 FillRxRing(pAC, &pAC->RxPort[i]);
3426
3427                 /* Enable transmit descriptor polling. */
3428                 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
3429                 FillRxRing(pAC, &pAC->RxPort[i]);
3430         };
3431
3432         SkGeYellowLED(pAC, pAC->IoBase, 1);
3433
3434 #ifdef USE_INT_MOD
3435         {
3436                 unsigned long ModBase;
3437                 ModBase = 53125000 / INTS_PER_SEC;
3438                 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
3439                 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
3440                 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
3441         }
3442 #endif
3443
3444         netif_start_queue(pAC->dev[pNet->PortNr]);
3445         for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
3446                 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
3447         }
3448
3449         /* enable Interrupts */
3450         SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
3451         SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
3452
3453         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3454         SkEventDispatcher(pAC, pAC->IoBase);
3455
3456         /* Found more than one port */
3457         if ((pAC->GIni.GIMacsFound == 2 ) &&
3458                 (pAC->RlmtNets == 2)) {
3459                         /* Start both ports */
3460                         EvPara.Para32[0] = pAC->RlmtNets;
3461                         EvPara.Para32[1] = -1;
3462                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS,
3463                                 EvPara);
3464
3465
3466                         EvPara.Para32[1] = -1;
3467                         EvPara.Para32[0] = pNet->PortNr;
3468                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3469
3470                         if (pOtherNet->Up) {
3471                                 EvPara.Para32[0] = pOtherNet->PortNr;
3472                                 SkEventQueue(pAC, SKGE_RLMT,
3473                                         SK_RLMT_START, EvPara);
3474                         }
3475         } else {
3476                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
3477         }
3478
3479         SkEventDispatcher(pAC, pAC->IoBase);
3480         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3481
3482         return 0;
3483 } /* SkGeChangeMtu */
3484
3485
3486 /*****************************************************************************
3487  *
3488  *      SkGeStats - return ethernet device statistics
3489  *
3490  * Description:
3491  *      This function return statistic data about the ethernet device
3492  *      to the operating system.
3493  *
3494  * Returns:
3495  *      pointer to the statistic structure.
3496  */
3497 static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev)
3498 {
3499 DEV_NET *pNet = (DEV_NET*) dev->priv;
3500 SK_AC   *pAC = pNet->pAC;
3501 SK_PNMI_STRUCT_DATA *pPnmiStruct;       /* structure for all Pnmi-Data */
3502 SK_PNMI_STAT    *pPnmiStat;             /* pointer to virtual XMAC stat. data */
3503 SK_PNMI_CONF    *pPnmiConf;             /* pointer to virtual link config. */
3504 unsigned int    Size;                   /* size of pnmi struct */
3505 unsigned long   Flags;                  /* for spin lock */
3506
3507         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3508                 ("SkGeStats starts now...\n"));
3509         pPnmiStruct = &pAC->PnmiStruct;
3510         memset(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
3511         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3512         Size = SK_PNMI_STRUCT_SIZE;
3513                 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr);
3514         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3515         pPnmiStat = &pPnmiStruct->Stat[0];
3516         pPnmiConf = &pPnmiStruct->Conf[0];
3517
3518         pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
3519         pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
3520         pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
3521         pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
3522
3523         if (pNet->Mtu <= 1500) {
3524                 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
3525         } else {
3526                 pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts -
3527                         pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF);
3528         }
3529
3530
3531         if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12)
3532                 pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts;
3533
3534         pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3535         pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
3536         pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
3537         pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
3538         pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
3539
3540         /* detailed rx_errors: */
3541         pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
3542         pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3543         pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
3544         pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
3545         pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
3546         pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
3547
3548         /* detailed tx_errors */
3549         pAC->stats.tx_aborted_errors = (SK_U32) 0;
3550         pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3551         pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
3552         pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
3553         pAC->stats.tx_window_errors = (SK_U32) 0;
3554
3555         return(&pAC->stats);
3556 } /* SkGeStats */
3557
3558
3559 /*****************************************************************************
3560  *
3561  *      SkGeIoctl - IO-control function
3562  *
3563  * Description:
3564  *      This function is called if an ioctl is issued on the device.
3565  *      There are three subfunction for reading, writing and test-writing
3566  *      the private MIB data structure (usefull for SysKonnect-internal tools).
3567  *
3568  * Returns:
3569  *      0, if everything is ok
3570  *      !=0, on error
3571  */
3572 static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd)
3573 {
3574 DEV_NET         *pNet;
3575 SK_AC           *pAC;
3576
3577 SK_GE_IOCTL     Ioctl;
3578 unsigned int    Err = 0;
3579 int             Size;
3580
3581         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3582                 ("SkGeIoctl starts now...\n"));
3583
3584         pNet = (DEV_NET*) dev->priv;
3585         pAC = pNet->pAC;
3586
3587         if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
3588                 return -EFAULT;
3589         }
3590
3591         switch(cmd) {
3592         case SK_IOCTL_SETMIB:
3593         case SK_IOCTL_PRESETMIB:
3594                 if (!capable(CAP_NET_ADMIN)) return -EPERM;
3595         case SK_IOCTL_GETMIB:
3596                 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
3597                         Ioctl.Len<sizeof(pAC->PnmiStruct)?
3598                         Ioctl.Len : sizeof(pAC->PnmiStruct))) {
3599                         return -EFAULT;
3600                 }
3601                 Size = SkGeIocMib(pNet, Ioctl.Len, cmd);
3602                 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
3603                         Ioctl.Len<Size? Ioctl.Len : Size)) {
3604                         return -EFAULT;
3605                 }
3606                 Ioctl.Len = Size;
3607                 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
3608                         return -EFAULT;
3609                 }
3610                 break;
3611         default:
3612                 Err = -EOPNOTSUPP;
3613         }
3614         return(Err);
3615 } /* SkGeIoctl */
3616
3617
3618 /*****************************************************************************
3619  *
3620  *      SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
3621  *
3622  * Description:
3623  *      This function reads/writes the MIB data using PNMI (Private Network
3624  *      Management Interface).
3625  *      The destination for the data must be provided with the
3626  *      ioctl call and is given to the driver in the form of
3627  *      a user space address.
3628  *      Copying from the user-provided data area into kernel messages
3629  *      and back is done by copy_from_user and copy_to_user calls in
3630  *      SkGeIoctl.
3631  *
3632  * Returns:
3633  *      returned size from PNMI call
3634  */
3635 static int SkGeIocMib(
3636 DEV_NET         *pNet,  /* pointer to the adapter context */
3637 unsigned int    Size,   /* length of ioctl data */
3638 int             mode)   /* flag for set/preset */
3639 {
3640 unsigned long   Flags;  /* for spin lock */
3641 SK_AC           *pAC;
3642
3643         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3644                 ("SkGeIocMib starts now...\n"));
3645         pAC = pNet->pAC;
3646         /* access MIB */
3647         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3648         switch(mode) {
3649         case SK_IOCTL_GETMIB:
3650                 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3651                         pNet->NetNr);
3652                 break;
3653         case SK_IOCTL_PRESETMIB:
3654                 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3655                         pNet->NetNr);
3656                 break;
3657         case SK_IOCTL_SETMIB:
3658                 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size,
3659                         pNet->NetNr);
3660                 break;
3661         default:
3662                 break;
3663         }
3664         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3665         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
3666                 ("MIB data access succeeded\n"));
3667         return (Size);
3668 } /* SkGeIocMib */
3669 #endif
3670
3671
3672 /*****************************************************************************
3673  *
3674  *      GetConfiguration - read configuration information
3675  *
3676  * Description:
3677  *      This function reads per-adapter configuration information from
3678  *      the options provided on the command line.
3679  *
3680  * Returns:
3681  *      none
3682  */
3683 static void GetConfiguration(
3684 SK_AC   *pAC)   /* pointer to the adapter context structure */
3685 {
3686 SK_I32  Port;           /* preferred port */
3687 int     LinkSpeed;      /* Link speed */
3688 int     AutoNeg;        /* auto negotiation off (0) or on (1) */
3689 int     DuplexCap;      /* duplex capabilities (0=both, 1=full, 2=half */
3690 int     MSMode;         /* master / slave mode selection */
3691 SK_BOOL AutoSet;
3692 SK_BOOL DupSet;
3693 /*
3694  *      The two parameters AutoNeg. and DuplexCap. map to one configuration
3695  *      parameter. The mapping is described by this table:
3696  *      DuplexCap ->    |       both    |       full    |       half    |
3697  *      AutoNeg         |               |               |               |
3698  *      -----------------------------------------------------------------
3699  *      Off             |    illegal    |       Full    |       Half    |
3700  *      -----------------------------------------------------------------
3701  *      On              |   AutoBoth    |   AutoFull    |   AutoHalf    |
3702  *      -----------------------------------------------------------------
3703  *      Sense           |   AutoSense   |   AutoSense   |   AutoSense   |
3704  */
3705 int     Capabilities[3][3] =
3706                 { {               -1, SK_LMODE_FULL,     SK_LMODE_HALF},
3707                   {SK_LMODE_AUTOBOTH, SK_LMODE_AUTOFULL, SK_LMODE_AUTOHALF},
3708                   {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
3709 #define DC_BOTH 0
3710 #define DC_FULL 1
3711 #define DC_HALF 2
3712 #define AN_OFF  0
3713 #define AN_ON   1
3714 #define AN_SENS 2
3715
3716         /* settings for port A */
3717         /* settings link speed */
3718         LinkSpeed = SK_LSPEED_AUTO;     /* default: do auto select */
3719         if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3720                 Speed_A[pAC->Index] != NULL) {
3721                 if (strcmp(Speed_A[pAC->Index],"")==0) {
3722                         LinkSpeed = SK_LSPEED_AUTO;
3723                 }
3724                 else if (strcmp(Speed_A[pAC->Index],"Auto")==0) {
3725                         LinkSpeed = SK_LSPEED_AUTO;
3726                 }
3727                 else if (strcmp(Speed_A[pAC->Index],"10")==0) {
3728                         LinkSpeed = SK_LSPEED_10MBPS;
3729                 }
3730                 else if (strcmp(Speed_A[pAC->Index],"100")==0) {
3731                         LinkSpeed = SK_LSPEED_100MBPS;
3732                 }
3733                 else if (strcmp(Speed_A[pAC->Index],"1000")==0) {
3734                         LinkSpeed = SK_LSPEED_1000MBPS;
3735                 }
3736                 else printk("%s: Illegal value for Speed_A\n",
3737                         pAC->dev[0]->name);
3738         }
3739
3740         /* Check speed parameter */
3741         /* Only copper type adapter and GE V2 cards */
3742         if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3743                 (pAC->GIni.GICopperType != SK_TRUE)) &&
3744                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3745                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3746                 printk("%s: Illegal value for Speed_A. "
3747                         "Not a copper card or GE V2 card\n    Using "
3748                         "speed 1000\n", pAC->dev[0]->name);
3749                 LinkSpeed = SK_LSPEED_1000MBPS;
3750         }
3751         pAC->GIni.GP[0].PLinkSpeed = LinkSpeed;
3752
3753         /* Autonegotiation */
3754         AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */
3755         AutoSet = SK_FALSE;
3756         if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3757                 AutoNeg_A[pAC->Index] != NULL) {
3758                 AutoSet = SK_TRUE;
3759                 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
3760                         AutoSet = SK_FALSE;
3761                 }
3762                 else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
3763                         AutoNeg = AN_ON;
3764                 }
3765                 else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
3766                         AutoNeg = AN_OFF;
3767                 }
3768                 else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
3769                         AutoNeg = AN_SENS;
3770                 }
3771                 else printk("%s: Illegal value for AutoNeg_A\n",
3772                         pAC->dev[0]->name);
3773         }
3774
3775         DuplexCap = DC_BOTH;
3776         DupSet = SK_FALSE;
3777         if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3778                 DupCap_A[pAC->Index] != NULL) {
3779                 DupSet = SK_TRUE;
3780                 if (strcmp(DupCap_A[pAC->Index],"")==0) {
3781                         DupSet = SK_FALSE;
3782                 }
3783                 else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
3784                         DuplexCap = DC_BOTH;
3785                 }
3786                 else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
3787                         DuplexCap = DC_FULL;
3788                 }
3789                 else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
3790                         DuplexCap = DC_HALF;
3791                 }
3792                 else printk("%s: Illegal value for DupCap_A\n",
3793                         pAC->dev[0]->name);
3794         }
3795
3796         /* check for illegal combinations */
3797         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3798                 printk("%s, Port A: DuplexCapabilities"
3799                         " ignored using Sense mode\n", pAC->dev[0]->name);
3800         }
3801         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3802                 printk("%s, Port A: Illegal combination"
3803                         " of values AutoNeg. and DuplexCap.\n    Using "
3804                         "Full Duplex\n", pAC->dev[0]->name);
3805
3806                 DuplexCap = DC_FULL;
3807         }
3808         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3809                 DuplexCap = DC_FULL;
3810         }
3811
3812         if (!AutoSet && DupSet) {
3813                 printk("%s, Port A: Duplex setting not"
3814                         " possible in\n    default AutoNegotiation mode"
3815                         " (Sense).\n    Using AutoNegotiation On\n",
3816                         pAC->dev[0]->name);
3817                 AutoNeg = AN_ON;
3818         }
3819
3820         /* set the desired mode */
3821         pAC->GIni.GP[0].PLinkModeConf =
3822                 Capabilities[AutoNeg][DuplexCap];
3823
3824         pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3825         if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3826                 FlowCtrl_A[pAC->Index] != NULL) {
3827                 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
3828                 }
3829                 else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
3830                         pAC->GIni.GP[0].PFlowCtrlMode =
3831                                 SK_FLOW_MODE_SYM_OR_REM;
3832                 }
3833                 else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
3834                         pAC->GIni.GP[0].PFlowCtrlMode =
3835                                 SK_FLOW_MODE_SYMMETRIC;
3836                 }
3837                 else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
3838                         pAC->GIni.GP[0].PFlowCtrlMode =
3839                                 SK_FLOW_MODE_LOC_SEND;
3840                 }
3841                 else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
3842                         pAC->GIni.GP[0].PFlowCtrlMode =
3843                                 SK_FLOW_MODE_NONE;
3844                 }
3845                 else printk("Illegal value for FlowCtrl_A\n");
3846         }
3847         if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!=
3848                 SK_FLOW_MODE_NONE) {
3849                 printk("%s, Port A: FlowControl"
3850                         " impossible without AutoNegotiation,"
3851                         " disabled\n", pAC->dev[0]->name);
3852                 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE;
3853         }
3854
3855         MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
3856         if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3857                 Role_A[pAC->Index] != NULL) {
3858                 if (strcmp(Role_A[pAC->Index],"")==0) {
3859                 }
3860                 else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
3861                         MSMode = SK_MS_MODE_AUTO;
3862                 }
3863                 else if (strcmp(Role_A[pAC->Index],"Master")==0) {
3864                         MSMode = SK_MS_MODE_MASTER;
3865                 }
3866                 else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
3867                         MSMode = SK_MS_MODE_SLAVE;
3868                 }
3869                 else printk("%s: Illegal value for Role_A\n",
3870                         pAC->dev[0]->name);
3871         }
3872         pAC->GIni.GP[0].PMSMode = MSMode;
3873
3874
3875         /* settings for port B */
3876         /* settings link speed */
3877         LinkSpeed = SK_LSPEED_AUTO;     /* default: do auto select */
3878         if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3879                 Speed_B[pAC->Index] != NULL) {
3880                 if (strcmp(Speed_B[pAC->Index],"")==0) {
3881                         LinkSpeed = SK_LSPEED_AUTO;
3882                 }
3883                 else if (strcmp(Speed_B[pAC->Index],"Auto")==0) {
3884                         LinkSpeed = SK_LSPEED_AUTO;
3885                 }
3886                 else if (strcmp(Speed_B[pAC->Index],"10")==0) {
3887                         LinkSpeed = SK_LSPEED_10MBPS;
3888                 }
3889                 else if (strcmp(Speed_B[pAC->Index],"100")==0) {
3890                         LinkSpeed = SK_LSPEED_100MBPS;
3891                 }
3892                 else if (strcmp(Speed_B[pAC->Index],"1000")==0) {
3893                         LinkSpeed = SK_LSPEED_1000MBPS;
3894                 }
3895                 else printk("%s: Illegal value for Speed_B\n",
3896                         pAC->dev[1]->name);
3897         }
3898
3899         /* Check speed parameter */
3900         /* Only copper type adapter and GE V2 cards */
3901         if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) ||
3902                 (pAC->GIni.GICopperType != SK_TRUE)) &&
3903                 ((LinkSpeed != SK_LSPEED_AUTO) &&
3904                 (LinkSpeed != SK_LSPEED_1000MBPS))) {
3905                 printk("%s: Illegal value for Speed_B. "
3906                         "Not a copper card or GE V2 card\n    Using "
3907                         "speed 1000\n", pAC->dev[1]->name);
3908                 LinkSpeed = SK_LSPEED_1000MBPS;
3909         }
3910         pAC->GIni.GP[1].PLinkSpeed = LinkSpeed;
3911
3912         /* Auto negotiation */
3913         AutoNeg = AN_SENS; /* default: do auto Sense */
3914         AutoSet = SK_FALSE;
3915         if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3916                 AutoNeg_B[pAC->Index] != NULL) {
3917                 AutoSet = SK_TRUE;
3918                 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
3919                         AutoSet = SK_FALSE;
3920                 }
3921                 else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
3922                         AutoNeg = AN_ON;
3923                 }
3924                 else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
3925                         AutoNeg = AN_OFF;
3926                 }
3927                 else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
3928                         AutoNeg = AN_SENS;
3929                 }
3930                 else printk("Illegal value for AutoNeg_B\n");
3931         }
3932
3933         DuplexCap = DC_BOTH;
3934         DupSet = SK_FALSE;
3935         if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3936                 DupCap_B[pAC->Index] != NULL) {
3937                 DupSet = SK_TRUE;
3938                 if (strcmp(DupCap_B[pAC->Index],"")==0) {
3939                         DupSet = SK_FALSE;
3940                 }
3941                 else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
3942                         DuplexCap = DC_BOTH;
3943                 }
3944                 else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
3945                         DuplexCap = DC_FULL;
3946                 }
3947                 else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
3948                         DuplexCap = DC_HALF;
3949                 }
3950                 else printk("Illegal value for DupCap_B\n");
3951         }
3952
3953         /* check for illegal combinations */
3954         if (AutoSet && AutoNeg==AN_SENS && DupSet) {
3955                 printk("%s, Port B: DuplexCapabilities"
3956                         " ignored using Sense mode\n", pAC->dev[1]->name);
3957         }
3958         if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
3959                 printk("%s, Port B: Illegal combination"
3960                         " of values AutoNeg. and DuplexCap.\n    Using "
3961                         "Full Duplex\n", pAC->dev[1]->name);
3962
3963                 DuplexCap = DC_FULL;
3964         }
3965         if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
3966                 DuplexCap = DC_FULL;
3967         }
3968
3969         if (!AutoSet && DupSet) {
3970                 printk("%s, Port B: Duplex setting not"
3971                         " possible in\n    default AutoNegotiation mode"
3972                         " (Sense).\n    Using AutoNegotiation On\n",
3973                         pAC->dev[1]->name);
3974                 AutoNeg = AN_ON;
3975         }
3976
3977         /* set the desired mode */
3978         pAC->GIni.GP[1].PLinkModeConf =
3979                 Capabilities[AutoNeg][DuplexCap];
3980
3981         pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
3982         if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3983                 FlowCtrl_B[pAC->Index] != NULL) {
3984                 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
3985                 }
3986                 else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
3987                         pAC->GIni.GP[1].PFlowCtrlMode =
3988                                 SK_FLOW_MODE_SYM_OR_REM;
3989                 }
3990                 else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
3991                         pAC->GIni.GP[1].PFlowCtrlMode =
3992                                 SK_FLOW_MODE_SYMMETRIC;
3993                 }
3994                 else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
3995                         pAC->GIni.GP[1].PFlowCtrlMode =
3996                                 SK_FLOW_MODE_LOC_SEND;
3997                 }
3998                 else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
3999                         pAC->GIni.GP[1].PFlowCtrlMode =
4000                                 SK_FLOW_MODE_NONE;
4001                 }
4002                 else printk("Illegal value for FlowCtrl_B\n");
4003         }
4004         if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!=
4005                 SK_FLOW_MODE_NONE) {
4006                 printk("%s, Port B: FlowControl"
4007                         " impossible without AutoNegotiation,"
4008                         " disabled\n", pAC->dev[1]->name);
4009                 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE;
4010         }
4011
4012         MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
4013         if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4014                 Role_B[pAC->Index] != NULL) {
4015                 if (strcmp(Role_B[pAC->Index],"")==0) {
4016                 }
4017                 else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
4018                         MSMode = SK_MS_MODE_AUTO;
4019                 }
4020                 else if (strcmp(Role_B[pAC->Index],"Master")==0) {
4021                         MSMode = SK_MS_MODE_MASTER;
4022                 }
4023                 else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
4024                         MSMode = SK_MS_MODE_SLAVE;
4025                 }
4026                 else printk("%s: Illegal value for Role_B\n",
4027                         pAC->dev[1]->name);
4028         }
4029         pAC->GIni.GP[1].PMSMode = MSMode;
4030
4031
4032         /* settings for both ports */
4033         pAC->ActivePort = 0;
4034         if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4035                 PrefPort[pAC->Index] != NULL) {
4036                 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
4037                         pAC->ActivePort = 0;
4038                         pAC->Rlmt.Net[0].Preference = -1; /* auto */
4039                         pAC->Rlmt.Net[0].PrefPort = 0;
4040                 }
4041                 else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
4042                         /*
4043                          * do not set ActivePort here, thus a port
4044                          * switch is issued after net up.
4045                          */
4046                         Port = 0;
4047                         pAC->Rlmt.Net[0].Preference = Port;
4048                         pAC->Rlmt.Net[0].PrefPort = Port;
4049                 }
4050                 else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
4051                         /*
4052                          * do not set ActivePort here, thus a port
4053                          * switch is issued after net up.
4054                          */
4055                         Port = 1;
4056                         pAC->Rlmt.Net[0].Preference = Port;
4057                         pAC->Rlmt.Net[0].PrefPort = Port;
4058                 }
4059                 else printk("%s: Illegal value for PrefPort\n",
4060                         pAC->dev[0]->name);
4061         }
4062
4063         pAC->RlmtNets = 1;
4064
4065         if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
4066                 RlmtMode[pAC->Index] != NULL) {
4067                 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
4068                         pAC->RlmtMode = 0;
4069                 }
4070                 else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
4071                         pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4072                 }
4073                 else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
4074                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
4075                                 SK_RLMT_CHECK_LOC_LINK;
4076                 }
4077                 else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
4078                         pAC->RlmtMode = SK_RLMT_CHECK_LINK |
4079                                 SK_RLMT_CHECK_LOC_LINK |
4080                                 SK_RLMT_CHECK_SEG;
4081                 }
4082                 else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) &&
4083                         (pAC->GIni.GIMacsFound == 2)) {
4084                                 pAC->RlmtMode = SK_RLMT_CHECK_LINK;
4085                                 pAC->RlmtNets = 2;
4086                 }
4087                 else {
4088                         printk("%s: Illegal value for"
4089                                 " RlmtMode, using default\n", pAC->dev[0]->name);
4090                         pAC->RlmtMode = 0;
4091                 }
4092         }
4093         else {
4094                 pAC->RlmtMode = 0;
4095         }
4096 } /* GetConfiguration */
4097
4098
4099 /*****************************************************************************
4100  *
4101  *      ProductStr - return a adapter identification string from vpd
4102  *
4103  * Description:
4104  *      This function reads the product name string from the vpd area
4105  *      and puts it the field pAC->DeviceString.
4106  *
4107  * Returns: N/A
4108  */
4109 static void ProductStr(
4110 SK_AC   *pAC            /* pointer to adapter context */
4111 )
4112 {
4113 int     StrLen = 80;            /* length of the string, defined in SK_AC */
4114 char    Keyword[] = VPD_NAME;   /* vpd productname identifier */
4115 int     ReturnCode;             /* return code from vpd_read */
4116 unsigned long Flags;
4117
4118         spin_lock_irqsave(&pAC->SlowPathLock, Flags);
4119         ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
4120                 &StrLen);
4121         spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
4122         if (ReturnCode != 0) {
4123                 /* there was an error reading the vpd data */
4124                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
4125                         ("Error reading VPD data: %d\n", ReturnCode));
4126                 pAC->DeviceStr[0] = '\0';
4127         }
4128 } /* ProductStr */
4129
4130
4131 /****************************************************************************/
4132 /* functions for common modules *********************************************/
4133 /****************************************************************************/
4134
4135
4136 /*****************************************************************************
4137  *
4138  *      SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
4139  *
4140  * Description:
4141  *      This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
4142  *      is embedded into a socket buff data area.
4143  *
4144  * Context:
4145  *      runtime
4146  *
4147  * Returns:
4148  *      NULL or pointer to Mbuf.
4149  */
4150 SK_MBUF *SkDrvAllocRlmtMbuf(
4151 SK_AC           *pAC,           /* pointer to adapter context */
4152 SK_IOC          IoC,            /* the IO-context */
4153 unsigned        BufferSize)     /* size of the requested buffer */
4154 {
4155 SK_MBUF         *pRlmtMbuf;     /* pointer to a new rlmt-mbuf structure */
4156 struct sk_buff  *pMsgBlock;     /* pointer to a new message block */
4157
4158         pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
4159         if (pMsgBlock == NULL) {
4160                 return (NULL);
4161         }
4162         pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
4163         skb_reserve(pMsgBlock, sizeof(SK_MBUF));
4164         pRlmtMbuf->pNext = NULL;
4165         pRlmtMbuf->pOs = pMsgBlock;
4166         pRlmtMbuf->pData = pMsgBlock->data;     /* Data buffer. */
4167         pRlmtMbuf->Size = BufferSize;           /* Data buffer size. */
4168         pRlmtMbuf->Length = 0;          /* Length of packet (<= Size). */
4169         return (pRlmtMbuf);
4170
4171 } /* SkDrvAllocRlmtMbuf */
4172
4173
4174 /*****************************************************************************
4175  *
4176  *      SkDrvFreeRlmtMbuf - free an RLMT mbuf
4177  *
4178  * Description:
4179  *      This routine frees one or more RLMT mbuf(s).
4180  *
4181  * Context:
4182  *      runtime
4183  *
4184  * Returns:
4185  *      Nothing
4186  */
4187 void  SkDrvFreeRlmtMbuf(
4188 SK_AC           *pAC,           /* pointer to adapter context */
4189 SK_IOC          IoC,            /* the IO-context */
4190 SK_MBUF         *pMbuf)         /* size of the requested buffer */
4191 {
4192 SK_MBUF         *pFreeMbuf;
4193 SK_MBUF         *pNextMbuf;
4194
4195         pFreeMbuf = pMbuf;
4196         do {
4197                 pNextMbuf = pFreeMbuf->pNext;
4198                 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
4199                 pFreeMbuf = pNextMbuf;
4200         } while ( pFreeMbuf != NULL );
4201 } /* SkDrvFreeRlmtMbuf */
4202
4203
4204 /*****************************************************************************
4205  *
4206  *      SkOsGetTime - provide a time value
4207  *
4208  * Description:
4209  *      This routine provides a time value. The unit is 1/HZ (defined by Linux).
4210  *      It is not used for absolute time, but only for time differences.
4211  *
4212  *
4213  * Returns:
4214  *      Time value
4215  */
4216 SK_U64 SkOsGetTime(SK_AC *pAC)
4217 {
4218 #if 0
4219         return jiffies;
4220 #else
4221         return get_timer(0);
4222 #endif
4223 } /* SkOsGetTime */
4224
4225
4226 /*****************************************************************************
4227  *
4228  *      SkPciReadCfgDWord - read a 32 bit value from pci config space
4229  *
4230  * Description:
4231  *      This routine reads a 32 bit value from the pci configuration
4232  *      space.
4233  *
4234  * Returns:
4235  *      0 - indicate everything worked ok.
4236  *      != 0 - error indication
4237  */
4238 int SkPciReadCfgDWord(
4239 SK_AC *pAC,             /* Adapter Control structure pointer */
4240 int PciAddr,            /* PCI register address */
4241 SK_U32 *pVal)           /* pointer to store the read value */
4242 {
4243         pci_read_config_dword(pAC->PciDev, PciAddr, pVal);
4244         return(0);
4245 } /* SkPciReadCfgDWord */
4246
4247
4248 /*****************************************************************************
4249  *
4250  *      SkPciReadCfgWord - read a 16 bit value from pci config space
4251  *
4252  * Description:
4253  *      This routine reads a 16 bit value from the pci configuration
4254  *      space.
4255  *
4256  * Returns:
4257  *      0 - indicate everything worked ok.
4258  *      != 0 - error indication
4259  */
4260 int SkPciReadCfgWord(
4261 SK_AC *pAC,     /* Adapter Control structure pointer */
4262 int PciAddr,            /* PCI register address */
4263 SK_U16 *pVal)           /* pointer to store the read value */
4264 {
4265         pci_read_config_word(pAC->PciDev, PciAddr, pVal);
4266         return(0);
4267 } /* SkPciReadCfgWord */
4268
4269
4270 /*****************************************************************************
4271  *
4272  *      SkPciReadCfgByte - read a 8 bit value from pci config space
4273  *
4274  * Description:
4275  *      This routine reads a 8 bit value from the pci configuration
4276  *      space.
4277  *
4278  * Returns:
4279  *      0 - indicate everything worked ok.
4280  *      != 0 - error indication
4281  */
4282 int SkPciReadCfgByte(
4283 SK_AC *pAC,     /* Adapter Control structure pointer */
4284 int PciAddr,            /* PCI register address */
4285 SK_U8 *pVal)            /* pointer to store the read value */
4286 {
4287         pci_read_config_byte(pAC->PciDev, PciAddr, pVal);
4288         return(0);
4289 } /* SkPciReadCfgByte */
4290
4291
4292 /*****************************************************************************
4293  *
4294  *      SkPciWriteCfgDWord - write a 32 bit value to pci config space
4295  *
4296  * Description:
4297  *      This routine writes a 32 bit value to the pci configuration
4298  *      space.
4299  *
4300  * Returns:
4301  *      0 - indicate everything worked ok.
4302  *      != 0 - error indication
4303  */
4304 int SkPciWriteCfgDWord(
4305 SK_AC *pAC,     /* Adapter Control structure pointer */
4306 int PciAddr,            /* PCI register address */
4307 SK_U32 Val)             /* pointer to store the read value */
4308 {
4309         pci_write_config_dword(pAC->PciDev, PciAddr, Val);
4310         return(0);
4311 } /* SkPciWriteCfgDWord */
4312
4313
4314 /*****************************************************************************
4315  *
4316  *      SkPciWriteCfgWord - write a 16 bit value to pci config space
4317  *
4318  * Description:
4319  *      This routine writes a 16 bit value to the pci configuration
4320  *      space. The flag PciConfigUp indicates whether the config space
4321  *      is accesible or must be set up first.
4322  *
4323  * Returns:
4324  *      0 - indicate everything worked ok.
4325  *      != 0 - error indication
4326  */
4327 int SkPciWriteCfgWord(
4328 SK_AC *pAC,     /* Adapter Control structure pointer */
4329 int PciAddr,            /* PCI register address */
4330 SK_U16 Val)             /* pointer to store the read value */
4331 {
4332         pci_write_config_word(pAC->PciDev, PciAddr, Val);
4333         return(0);
4334 } /* SkPciWriteCfgWord */
4335
4336
4337 /*****************************************************************************
4338  *
4339  *      SkPciWriteCfgWord - write a 8 bit value to pci config space
4340  *
4341  * Description:
4342  *      This routine writes a 8 bit value to the pci configuration
4343  *      space. The flag PciConfigUp indicates whether the config space
4344  *      is accesible or must be set up first.
4345  *
4346  * Returns:
4347  *      0 - indicate everything worked ok.
4348  *      != 0 - error indication
4349  */
4350 int SkPciWriteCfgByte(
4351 SK_AC *pAC,     /* Adapter Control structure pointer */
4352 int PciAddr,            /* PCI register address */
4353 SK_U8 Val)              /* pointer to store the read value */
4354 {
4355         pci_write_config_byte(pAC->PciDev, PciAddr, Val);
4356         return(0);
4357 } /* SkPciWriteCfgByte */
4358
4359
4360 /*****************************************************************************
4361  *
4362  *      SkDrvEvent - handle driver events
4363  *
4364  * Description:
4365  *      This function handles events from all modules directed to the driver
4366  *
4367  * Context:
4368  *      Is called under protection of slow path lock.
4369  *
4370  * Returns:
4371  *      0 if everything ok
4372  *      < 0  on error
4373  *
4374  */
4375 int SkDrvEvent(
4376 SK_AC *pAC,             /* pointer to adapter context */
4377 SK_IOC IoC,             /* io-context */
4378 SK_U32 Event,           /* event-id */
4379 SK_EVPARA Param)        /* event-parameter */
4380 {
4381 SK_MBUF         *pRlmtMbuf;     /* pointer to a rlmt-mbuf structure */
4382 struct sk_buff  *pMsg;          /* pointer to a message block */
4383 int             FromPort;       /* the port from which we switch away */
4384 int             ToPort;         /* the port we switch to */
4385 SK_EVPARA       NewPara;        /* parameter for further events */
4386 #if 0
4387 int             Stat;
4388 #endif
4389 unsigned long   Flags;
4390 SK_BOOL         DualNet;
4391
4392         switch (Event) {
4393         case SK_DRV_ADAP_FAIL:
4394                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4395                         ("ADAPTER FAIL EVENT\n"));
4396                 printk("%s: Adapter failed.\n", pAC->dev[0]->name);
4397                 /* disable interrupts */
4398                 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
4399                 /* cgoos */
4400                 break;
4401         case SK_DRV_PORT_FAIL:
4402                 FromPort = Param.Para32[0];
4403                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4404                         ("PORT FAIL EVENT, Port: %d\n", FromPort));
4405                 if (FromPort == 0) {
4406                         printk("%s: Port A failed.\n", pAC->dev[0]->name);
4407                 } else {
4408                         printk("%s: Port B failed.\n", pAC->dev[1]->name);
4409                 }
4410                 /* cgoos */
4411                 break;
4412         case SK_DRV_PORT_RESET:  /* SK_U32 PortIdx */
4413                 /* action list 4 */
4414                 FromPort = Param.Para32[0];
4415                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4416                         ("PORT RESET EVENT, Port: %d ", FromPort));
4417                 NewPara.Para64 = FromPort;
4418                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4419                 spin_lock_irqsave(
4420                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4421                         Flags);
4422                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
4423 #if 0
4424                 pAC->dev[Param.Para32[0]]->flags &= ~IFF_RUNNING;
4425 #endif
4426                 spin_unlock_irqrestore(
4427                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4428                         Flags);
4429
4430                 /* clear rx ring from received frames */
4431                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
4432
4433                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4434                 spin_lock_irqsave(
4435                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4436                         Flags);
4437
4438                 /* tschilling: Handling of return value inserted. */
4439                 if (SkGeInitPort(pAC, IoC, FromPort)) {
4440                         if (FromPort == 0) {
4441                                 printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name);
4442                         } else {
4443                                 printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name);
4444                         }
4445                 }
4446                 SkAddrMcUpdate(pAC,IoC, FromPort);
4447                 PortReInitBmu(pAC, FromPort);
4448                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4449                 ClearAndStartRx(pAC, FromPort);
4450                 spin_unlock_irqrestore(
4451                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4452                         Flags);
4453                 break;
4454         case SK_DRV_NET_UP:      /* SK_U32 PortIdx */
4455                 /* action list 5 */
4456                 FromPort = Param.Para32[0];
4457                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4458                         ("NET UP EVENT, Port: %d ", Param.Para32[0]));
4459 #ifdef SK98_INFO
4460                 printk("%s: network connection up using"
4461                         " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]);
4462
4463                 /* tschilling: Values changed according to LinkSpeedUsed. */
4464                 Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed;
4465                 if (Stat == SK_LSPEED_STAT_10MBPS) {
4466                         printk("    speed:           10\n");
4467                 } else if (Stat == SK_LSPEED_STAT_100MBPS) {
4468                         printk("    speed:           100\n");
4469                 } else if (Stat == SK_LSPEED_STAT_1000MBPS) {
4470                         printk("    speed:           1000\n");
4471                 } else {
4472                         printk("    speed:           unknown\n");
4473                 }
4474
4475                 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
4476                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4477                         Stat == SK_LMODE_STAT_AUTOFULL) {
4478                         printk("    autonegotiation: yes\n");
4479                 }
4480                 else {
4481                         printk("    autonegotiation: no\n");
4482                 }
4483                 if (Stat == SK_LMODE_STAT_AUTOHALF ||
4484                         Stat == SK_LMODE_STAT_HALF) {
4485                         printk("    duplex mode:     half\n");
4486                 }
4487                 else {
4488                         printk("    duplex mode:     full\n");
4489                 }
4490                 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
4491                 if (Stat == SK_FLOW_STAT_REM_SEND ) {
4492                         printk("    flowctrl:        remote send\n");
4493                 }
4494                 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
4495                         printk("    flowctrl:        local send\n");
4496                 }
4497                 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
4498                         printk("    flowctrl:        symmetric\n");
4499                 }
4500                 else {
4501                         printk("    flowctrl:        none\n");
4502                 }
4503
4504                 /* tschilling: Check against CopperType now. */
4505                 if ((pAC->GIni.GICopperType == SK_TRUE) &&
4506                         (pAC->GIni.GP[FromPort].PLinkSpeedUsed ==
4507                         SK_LSPEED_STAT_1000MBPS)) {
4508                         Stat = pAC->GIni.GP[FromPort].PMSStatus;
4509                         if (Stat == SK_MS_STAT_MASTER ) {
4510                                 printk("    role:            master\n");
4511                         }
4512                         else if (Stat == SK_MS_STAT_SLAVE ) {
4513                                 printk("    role:            slave\n");
4514                         }
4515                         else {
4516                                 printk("    role:            ???\n");
4517                         }
4518                 }
4519
4520 #ifdef SK_ZEROCOPY
4521                 if (pAC->GIni.GIChipId == CHIP_ID_YUKON)
4522                         printk("    scatter-gather:  enabled\n");
4523                 else
4524                         printk("    scatter-gather:  disabled\n");
4525
4526 #else
4527                         printk("    scatter-gather:  disabled\n");
4528 #endif
4529 #endif /* SK98_INFO */
4530
4531                 if ((Param.Para32[0] != pAC->ActivePort) &&
4532                         (pAC->RlmtNets == 1)) {
4533                         NewPara.Para32[0] = pAC->ActivePort;
4534                         NewPara.Para32[1] = Param.Para32[0];
4535                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
4536                                 NewPara);
4537                 }
4538
4539                 /* Inform the world that link protocol is up. */
4540 #if 0
4541                 pAC->dev[Param.Para32[0]]->flags |= IFF_RUNNING;
4542 #endif
4543
4544                 break;
4545         case SK_DRV_NET_DOWN:    /* SK_U32 Reason */
4546                 /* action list 7 */
4547                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4548                         ("NET DOWN EVENT "));
4549 #ifdef SK98_INFO
4550                 printk("%s: network connection down\n", pAC->dev[Param.Para32[1]]->name);
4551 #endif
4552 #if 0
4553                 pAC->dev[Param.Para32[1]]->flags &= ~IFF_RUNNING;
4554 #endif
4555                 break;
4556         case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4557                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4558                         ("PORT SWITCH HARD "));
4559         case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4560         /* action list 6 */
4561                 printk("%s: switching to port %c\n", pAC->dev[0]->name,
4562                         'A'+Param.Para32[1]);
4563         case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
4564                 FromPort = Param.Para32[0];
4565                 ToPort = Param.Para32[1];
4566                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4567                         ("PORT SWITCH EVENT, From: %d  To: %d (Pref %d) ",
4568                         FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort));
4569                 NewPara.Para64 = FromPort;
4570                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4571                 NewPara.Para64 = ToPort;
4572                 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
4573                 spin_lock_irqsave(
4574                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4575                         Flags);
4576                 spin_lock_irqsave(
4577                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4578                 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
4579                 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
4580                 spin_unlock_irqrestore(
4581                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4582                 spin_unlock_irqrestore(
4583                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4584                         Flags);
4585
4586                 ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */
4587                 ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */
4588
4589                 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
4590                 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
4591                 spin_lock_irqsave(
4592                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4593                         Flags);
4594                 spin_lock_irqsave(
4595                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4596                 pAC->ActivePort = ToPort;
4597 #if 0
4598                 SetQueueSizes(pAC);
4599 #else
4600                 /* tschilling: New common function with minimum size check. */
4601                 DualNet = SK_FALSE;
4602                 if (pAC->RlmtNets == 2) {
4603                         DualNet = SK_TRUE;
4604                 }
4605
4606                 if (SkGeInitAssignRamToQueues(
4607                         pAC,
4608                         pAC->ActivePort,
4609                         DualNet)) {
4610                         spin_unlock_irqrestore(
4611                                 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4612                         spin_unlock_irqrestore(
4613                                 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4614                                 Flags);
4615                         printk("SkGeInitAssignRamToQueues failed.\n");
4616                         break;
4617                 }
4618 #endif
4619                 /* tschilling: Handling of return values inserted. */
4620                 if (SkGeInitPort(pAC, IoC, FromPort) ||
4621                         SkGeInitPort(pAC, IoC, ToPort)) {
4622                         printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name);
4623                 }
4624                 if (Event == SK_DRV_SWITCH_SOFT) {
4625                         SkMacRxTxEnable(pAC, IoC, FromPort);
4626                 }
4627                 SkMacRxTxEnable(pAC, IoC, ToPort);
4628                 SkAddrSwap(pAC, IoC, FromPort, ToPort);
4629                 SkAddrMcUpdate(pAC, IoC, FromPort);
4630                 SkAddrMcUpdate(pAC, IoC, ToPort);
4631                 PortReInitBmu(pAC, FromPort);
4632                 PortReInitBmu(pAC, ToPort);
4633                 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
4634                 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
4635                 ClearAndStartRx(pAC, FromPort);
4636                 ClearAndStartRx(pAC, ToPort);
4637                 spin_unlock_irqrestore(
4638                         &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
4639                 spin_unlock_irqrestore(
4640                         &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
4641                         Flags);
4642                 break;
4643         case SK_DRV_RLMT_SEND:   /* SK_MBUF *pMb */
4644                 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4645                         ("RLS "));
4646                 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
4647                 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
4648                 skb_put(pMsg, pRlmtMbuf->Length);
4649                 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
4650                         pMsg) < 0)
4651
4652                         DEV_KFREE_SKB_ANY(pMsg);
4653                 break;
4654         default:
4655                 break;
4656         }
4657         SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
4658                 ("END EVENT "));
4659
4660         return (0);
4661 } /* SkDrvEvent */
4662
4663
4664 /*****************************************************************************
4665  *
4666  *      SkErrorLog - log errors
4667  *
4668  * Description:
4669  *      This function logs errors to the system buffer and to the console
4670  *
4671  * Returns:
4672  *      0 if everything ok
4673  *      < 0  on error
4674  *
4675  */
4676 void SkErrorLog(
4677 SK_AC   *pAC,
4678 int     ErrClass,
4679 int     ErrNum,
4680 char    *pErrorMsg)
4681 {
4682 char    ClassStr[80];
4683
4684         switch (ErrClass) {
4685         case SK_ERRCL_OTHER:
4686                 strcpy(ClassStr, "Other error");
4687                 break;
4688         case SK_ERRCL_CONFIG:
4689                 strcpy(ClassStr, "Configuration error");
4690                 break;
4691         case SK_ERRCL_INIT:
4692                 strcpy(ClassStr, "Initialization error");
4693                 break;
4694         case SK_ERRCL_NORES:
4695                 strcpy(ClassStr, "Out of resources error");
4696                 break;
4697         case SK_ERRCL_SW:
4698                 strcpy(ClassStr, "internal Software error");
4699                 break;
4700         case SK_ERRCL_HW:
4701                 strcpy(ClassStr, "Hardware failure");
4702                 break;
4703         case SK_ERRCL_COMM:
4704                 strcpy(ClassStr, "Communication error");
4705                 break;
4706         }
4707         printk(KERN_INFO "%s: -- ERROR --\n        Class:  %s\n"
4708                 "        Nr:  0x%x\n        Msg:  %s\n", pAC->dev[0]->name,
4709                 ClassStr, ErrNum, pErrorMsg);
4710
4711 } /* SkErrorLog */
4712
4713 #ifdef DEBUG
4714 /****************************************************************************/
4715 /* "debug only" section *****************************************************/
4716 /****************************************************************************/
4717
4718
4719 /*****************************************************************************
4720  *
4721  *      DumpMsg - print a frame
4722  *
4723  * Description:
4724  *      This function prints frames to the system logfile/to the console.
4725  *
4726  * Returns: N/A
4727  *
4728  */
4729 static void DumpMsg(struct sk_buff *skb, char *str)
4730 {
4731         int     msglen;
4732
4733         if (skb == NULL) {
4734                 printk("DumpMsg(): NULL-Message\n");
4735                 return;
4736         }
4737
4738         if (skb->data == NULL) {
4739                 printk("DumpMsg(): Message empty\n");
4740                 return;
4741         }
4742
4743         msglen = skb->len;
4744         if (msglen > 64)
4745                 msglen = 64;
4746
4747         printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
4748
4749         DumpData((char *)skb->data, msglen);
4750
4751         printk("------- End of message ---------\n");
4752 } /* DumpMsg */
4753
4754
4755 /*****************************************************************************
4756  *
4757  *      DumpData - print a data area
4758  *
4759  * Description:
4760  *      This function prints a area of data to the system logfile/to the
4761  *      console.
4762  *
4763  * Returns: N/A
4764  *
4765  */
4766 static void DumpData(char *p, int size)
4767 {
4768 register int    i;
4769 int     haddr, addr;
4770 char    hex_buffer[180];
4771 char    asc_buffer[180];
4772 char    HEXCHAR[] = "0123456789ABCDEF";
4773
4774         addr = 0;
4775         haddr = 0;
4776         hex_buffer[0] = 0;
4777         asc_buffer[0] = 0;
4778         for (i=0; i < size; ) {
4779                 if (*p >= '0' && *p <='z')
4780                         asc_buffer[addr] = *p;
4781                 else
4782                         asc_buffer[addr] = '.';
4783                 addr++;
4784                 asc_buffer[addr] = 0;
4785                 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
4786                 haddr++;
4787                 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
4788                 haddr++;
4789                 hex_buffer[haddr] = ' ';
4790                 haddr++;
4791                 hex_buffer[haddr] = 0;
4792                 p++;
4793                 i++;
4794                 if (i%16 == 0) {
4795                         printk("%s  %s\n", hex_buffer, asc_buffer);
4796                         addr = 0;
4797                         haddr = 0;
4798                 }
4799         }
4800 } /* DumpData */
4801
4802
4803 /*****************************************************************************
4804  *
4805  *      DumpLong - print a data area as long values
4806  *
4807  * Description:
4808  *      This function prints a area of data to the system logfile/to the
4809  *      console.
4810  *
4811  * Returns: N/A
4812  *
4813  */
4814 static void DumpLong(char *pc, int size)
4815 {
4816 register int    i;
4817 int     haddr, addr;
4818 char    hex_buffer[180];
4819 char    asc_buffer[180];
4820 char    HEXCHAR[] = "0123456789ABCDEF";
4821 long    *p;
4822 int     l;
4823
4824         addr = 0;
4825         haddr = 0;
4826         hex_buffer[0] = 0;
4827         asc_buffer[0] = 0;
4828         p = (long*) pc;
4829         for (i=0; i < size; ) {
4830                 l = (long) *p;
4831                 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
4832                 haddr++;
4833                 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
4834                 haddr++;
4835                 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
4836                 haddr++;
4837                 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
4838                 haddr++;
4839                 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
4840                 haddr++;
4841                 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
4842                 haddr++;
4843                 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
4844                 haddr++;
4845                 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
4846                 haddr++;
4847                 hex_buffer[haddr] = ' ';
4848                 haddr++;
4849                 hex_buffer[haddr] = 0;
4850                 p++;
4851                 i++;
4852                 if (i%8 == 0) {
4853                         printk("%4x %s\n", (i-8)*4, hex_buffer);
4854                         haddr = 0;
4855                 }
4856         }
4857         printk("------------------------\n");
4858 } /* DumpLong */
4859
4860 #endif