git.oblomov.eu Git - linux-2.6/blob - drivers/net/sk98lin/skgesirq.c

   1 /******************************************************************************
   2  *
   3  * Name:        skgesirq.c
   4  * Project:     Gigabit Ethernet Adapters, Common Modules
   5  * Version:     $Revision: 1.92 $
   6  * Date:        $Date: 2003/09/16 14:37:07 $
   7  * Purpose:     Special IRQ module
   8  *
   9  ******************************************************************************/
  10
  11 /******************************************************************************
  12  *
  13  *      (C)Copyright 1998-2002 SysKonnect.
  14  *      (C)Copyright 2002-2003 Marvell.
  15  *
  16  *      This program is free software; you can redistribute it and/or modify
  17  *      it under the terms of the GNU General Public License as published by
  18  *      the Free Software Foundation; either version 2 of the License, or
  19  *      (at your option) any later version.
  20  *
  21  *      The information in this file is provided "AS IS" without warranty.
  22  *
  23  ******************************************************************************/
  24
  25 /*
  26  *      Special Interrupt handler
  27  *
  28  *      The following abstract should show how this module is included
  29  *      in the driver path:
  30  *
  31  *      In the ISR of the driver the bits for frame transmission complete and
  32  *      for receive complete are checked and handled by the driver itself.
  33  *      The bits of the slow path mask are checked after that and then the
  34  *      entry into the so-called "slow path" is prepared. It is an implementors
  35  *      decision whether this is executed directly or just scheduled by
  36  *      disabling the mask. In the interrupt service routine some events may be
  37  *      generated, so it would be a good idea to call the EventDispatcher
  38  *      right after this ISR.
  39  *
  40  *      The Interrupt source register of the adapter is NOT read by this module.
  41  *  SO if the drivers implementor needs a while loop around the
  42  *      slow data paths interrupt bits, he needs to call the SkGeSirqIsr() for
  43  *      each loop entered.
  44  *
  45  *      However, the MAC Interrupt status registers are read in a while loop.
  46  *
  47  */
  48
  49 #if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
  50 static const char SysKonnectFileId[] =
  51         "@(#) $Id: skgesirq.c,v 1.92 2003/09/16 14:37:07 rschmidt Exp $ (C) Marvell.";
  52 #endif
  53
  54 #include "h/skdrv1st.h"         /* Driver Specific Definitions */
  55 #ifndef SK_SLIM
  56 #include "h/skgepnmi.h"         /* PNMI Definitions */
  57 #include "h/skrlmt.h"           /* RLMT Definitions */
  58 #endif
  59 #include "h/skdrv2nd.h"         /* Adapter Control and Driver specific Def. */
  60
  61 /* local function prototypes */
  62 #ifdef GENESIS
  63 static int      SkGePortCheckUpXmac(SK_AC*, SK_IOC, int, SK_BOOL);
  64 static int      SkGePortCheckUpBcom(SK_AC*, SK_IOC, int, SK_BOOL);
  65 static void     SkPhyIsrBcom(SK_AC*, SK_IOC, int, SK_U16);
  66 #endif /* GENESIS */
  67 #ifdef YUKON
  68 static int      SkGePortCheckUpGmac(SK_AC*, SK_IOC, int, SK_BOOL);
  69 static void     SkPhyIsrGmac(SK_AC*, SK_IOC, int, SK_U16);
  70 #endif /* YUKON */
  71 #ifdef OTHER_PHY
  72 static int      SkGePortCheckUpLone(SK_AC*, SK_IOC, int, SK_BOOL);
  73 static int      SkGePortCheckUpNat(SK_AC*, SK_IOC, int, SK_BOOL);
  74 static void     SkPhyIsrLone(SK_AC*, SK_IOC, int, SK_U16);
  75 #endif /* OTHER_PHY */
  76
  77 #ifdef GENESIS
  78 /*
  79  * array of Rx counter from XMAC which are checked
  80  * in AutoSense mode to check whether a link is not able to auto-negotiate.
  81  */
  82 static const SK_U16 SkGeRxRegs[]= {
  83         XM_RXF_64B,
  84         XM_RXF_127B,
  85         XM_RXF_255B,
  86         XM_RXF_511B,
  87         XM_RXF_1023B,
  88         XM_RXF_MAX_SZ
  89 } ;
  90 #endif /* GENESIS */
  91
  92 #ifdef __C2MAN__
  93 /*
  94  *      Special IRQ function
  95  *
  96  *      General Description:
  97  *
  98  */
  99 intro()
 100 {}
 101 #endif
 102
 103 /******************************************************************************
 104  *
 105  *      SkHWInitDefSense() - Default Autosensing mode initialization
 106  *
 107  * Description: sets the PLinkMode for HWInit
 108  *
 109  * Returns: N/A
 110  */
 111 static void SkHWInitDefSense(
 112 SK_AC   *pAC,   /* adapter context */
 113 SK_IOC  IoC,    /* IO context */
 114 int             Port)   /* Port Index (MAC_1 + n) */
 115 {
 116         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 117
 118         pPrt = &pAC->GIni.GP[Port];
 119
 120         pPrt->PAutoNegTimeOut = 0;
 121
 122         if (pPrt->PLinkModeConf != SK_LMODE_AUTOSENSE) {
 123                 pPrt->PLinkMode = pPrt->PLinkModeConf;
 124                 return;
 125         }
 126
 127         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 128                 ("AutoSensing: First mode %d on Port %d\n",
 129                 (int)SK_LMODE_AUTOFULL, Port));
 130
 131         pPrt->PLinkMode = (SK_U8)SK_LMODE_AUTOFULL;
 132
 133         return;
 134 }       /* SkHWInitDefSense */
 135
 136
 137 #ifdef GENESIS
 138 /******************************************************************************
 139  *
 140  *      SkHWSenseGetNext() - Get Next Autosensing Mode
 141  *
 142  * Description: gets the appropriate next mode
 143  *
 144  * Note:
 145  *
 146  */
 147 static SK_U8 SkHWSenseGetNext(
 148 SK_AC   *pAC,   /* adapter context */
 149 SK_IOC  IoC,    /* IO context */
 150 int             Port)   /* Port Index (MAC_1 + n) */
 151 {
 152         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 153
 154         pPrt = &pAC->GIni.GP[Port];
 155
 156         pPrt->PAutoNegTimeOut = 0;
 157
 158     if (pPrt->PLinkModeConf != (SK_U8)SK_LMODE_AUTOSENSE) {
 159                 /* Leave all as configured */
 160                 return(pPrt->PLinkModeConf);
 161         }
 162
 163     if (pPrt->PLinkMode == (SK_U8)SK_LMODE_AUTOFULL) {
 164                 /* Return next mode AUTOBOTH */
 165         return ((SK_U8)SK_LMODE_AUTOBOTH);
 166         }
 167
 168         /* Return default autofull */
 169     return ((SK_U8)SK_LMODE_AUTOFULL);
 170 }       /* SkHWSenseGetNext */
 171
 172
 173 /******************************************************************************
 174  *
 175  *      SkHWSenseSetNext() - Autosensing Set next mode
 176  *
 177  * Description: sets the appropriate next mode
 178  *
 179  * Returns: N/A
 180  */
 181 static void SkHWSenseSetNext(
 182 SK_AC   *pAC,           /* adapter context */
 183 SK_IOC  IoC,            /* IO context */
 184 int             Port,           /* Port Index (MAC_1 + n) */
 185 SK_U8   NewMode)        /* New Mode to be written in sense mode */
 186 {
 187         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 188
 189         pPrt = &pAC->GIni.GP[Port];
 190
 191         pPrt->PAutoNegTimeOut = 0;
 192
 193     if (pPrt->PLinkModeConf != (SK_U8)SK_LMODE_AUTOSENSE) {
 194                 return;
 195         }
 196
 197         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 198                 ("AutoSensing: next mode %d on Port %d\n",
 199                 (int)NewMode, Port));
 200
 201         pPrt->PLinkMode = NewMode;
 202
 203         return;
 204 }       /* SkHWSenseSetNext */
 205 #endif /* GENESIS */
 206
 207
 208 /******************************************************************************
 209  *
 210  *      SkHWLinkDown() - Link Down handling
 211  *
 212  * Description: handles the hardware link down signal
 213  *
 214  * Returns: N/A
 215  */
 216 void SkHWLinkDown(
 217 SK_AC   *pAC,           /* adapter context */
 218 SK_IOC  IoC,            /* IO context */
 219 int             Port)           /* Port Index (MAC_1 + n) */
 220 {
 221         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 222
 223         pPrt = &pAC->GIni.GP[Port];
 224
 225         /* Disable all MAC interrupts */
 226         SkMacIrqDisable(pAC, IoC, Port);
 227
 228         /* Disable Receiver and Transmitter */
 229         SkMacRxTxDisable(pAC, IoC, Port);
 230
 231         /* Init default sense mode */
 232         SkHWInitDefSense(pAC, IoC, Port);
 233
 234         if (pPrt->PHWLinkUp == SK_FALSE) {
 235                 return;
 236         }
 237
 238         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 239                 ("Link down Port %d\n", Port));
 240
 241         /* Set Link to DOWN */
 242         pPrt->PHWLinkUp = SK_FALSE;
 243
 244         /* Reset Port stati */
 245     pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_UNKNOWN;
 246     pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE;
 247         pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_INDETERMINATED;
 248
 249         /* Re-init Phy especially when the AutoSense default is set now */
 250         SkMacInitPhy(pAC, IoC, Port, SK_FALSE);
 251
 252         /* GP0: used for workaround of Rev. C Errata 2 */
 253
 254         /* Do NOT signal to RLMT */
 255
 256         /* Do NOT start the timer here */
 257 }       /* SkHWLinkDown */
 258
 259
 260 /******************************************************************************
 261  *
 262  *      SkHWLinkUp() - Link Up handling
 263  *
 264  * Description: handles the hardware link up signal
 265  *
 266  * Returns: N/A
 267  */
 268 static void SkHWLinkUp(
 269 SK_AC   *pAC,   /* adapter context */
 270 SK_IOC  IoC,    /* IO context */
 271 int             Port)   /* Port Index (MAC_1 + n) */
 272 {
 273         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 274
 275         pPrt = &pAC->GIni.GP[Port];
 276
 277         if (pPrt->PHWLinkUp) {
 278                 /* We do NOT need to proceed on active link */
 279                 return;
 280         }
 281
 282         pPrt->PHWLinkUp = SK_TRUE;
 283         pPrt->PAutoNegFail = SK_FALSE;
 284     pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_UNKNOWN;
 285
 286     if (pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOHALF &&
 287         pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOFULL &&
 288         pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOBOTH) {
 289                 /* Link is up and no Auto-negotiation should be done */
 290
 291                 /* Link speed should be the configured one */
 292                 switch (pPrt->PLinkSpeed) {
 293                 case SK_LSPEED_AUTO:
 294                         /* default is 1000 Mbps */
 295                 case SK_LSPEED_1000MBPS:
 296                         pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_1000MBPS;
 297                         break;
 298                 case SK_LSPEED_100MBPS:
 299                         pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_100MBPS;
 300                         break;
 301                 case SK_LSPEED_10MBPS:
 302                         pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_10MBPS;
 303                         break;
 304                 }
 305
 306                 /* Set Link Mode Status */
 307                 if (pPrt->PLinkMode == SK_LMODE_FULL) {
 308                         pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_FULL;
 309                 }
 310                 else {
 311             pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_HALF;
 312                 }
 313
 314                 /* No flow control without auto-negotiation */
 315         pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE;
 316
 317                 /* enable Rx/Tx */
 318         (void)SkMacRxTxEnable(pAC, IoC, Port);
 319         }
 320 }       /* SkHWLinkUp */
 321
 322
 323 /******************************************************************************
 324  *
 325  *      SkMacParity() - MAC parity workaround
 326  *
 327  * Description: handles MAC parity errors correctly
 328  *
 329  * Returns: N/A
 330  */
 331 static void SkMacParity(
 332 SK_AC   *pAC,   /* adapter context */
 333 SK_IOC  IoC,    /* IO context */
 334 int             Port)   /* Port Index of the port failed */
 335 {
 336         SK_EVPARA       Para;
 337         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 338         SK_U32          TxMax;          /* Tx Max Size Counter */
 339
 340         pPrt = &pAC->GIni.GP[Port];
 341
 342         /* Clear IRQ Tx Parity Error */
 343 #ifdef GENESIS
 344         if (pAC->GIni.GIGenesis) {
 345
 346                 SK_OUT16(IoC, MR_ADDR(Port, TX_MFF_CTRL1), MFF_CLR_PERR);
 347         }
 348 #endif /* GENESIS */
 349
 350 #ifdef YUKON
 351         if (pAC->GIni.GIYukon) {
 352                 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
 353                 SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T),
 354                         (SK_U8)((pAC->GIni.GIChipId == CHIP_ID_YUKON &&
 355                         pAC->GIni.GIChipRev == 0) ? GMF_CLI_TX_FC : GMF_CLI_TX_PE));
 356         }
 357 #endif /* YUKON */
 358
 359         if (pPrt->PCheckPar) {
 360
 361                 if (Port == MAC_1) {
 362                         SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E016, SKERR_SIRQ_E016MSG);
 363                 }
 364                 else {
 365                         SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E017, SKERR_SIRQ_E017MSG);
 366                 }
 367                 Para.Para64 = Port;
 368                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 369
 370                 Para.Para32[0] = Port;
 371                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 372
 373                 return;
 374         }
 375
 376         /* Check whether frames with a size of 1k were sent */
 377 #ifdef GENESIS
 378         if (pAC->GIni.GIGenesis) {
 379                 /* Snap statistic counters */
 380                 (void)SkXmUpdateStats(pAC, IoC, Port);
 381
 382                 (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXF_MAX_SZ, &TxMax);
 383         }
 384 #endif /* GENESIS */
 385
 386 #ifdef YUKON
 387         if (pAC->GIni.GIYukon) {
 388
 389                 (void)SkGmMacStatistic(pAC, IoC, Port, GM_TXF_1518B, &TxMax);
 390         }
 391 #endif /* YUKON */
 392
 393         if (TxMax > 0) {
 394                 /* From now on check the parity */
 395                 pPrt->PCheckPar = SK_TRUE;
 396         }
 397 }       /* SkMacParity */
 398
 399
 400 /******************************************************************************
 401  *
 402  *      SkGeHwErr() - Hardware Error service routine
 403  *
 404  * Description: handles all HW Error interrupts
 405  *
 406  * Returns: N/A
 407  */
 408 static void SkGeHwErr(
 409 SK_AC   *pAC,           /* adapter context */
 410 SK_IOC  IoC,            /* IO context */
 411 SK_U32  HwStatus)       /* Interrupt status word */
 412 {
 413         SK_EVPARA       Para;
 414         SK_U16          Word;
 415
 416         if ((HwStatus & (IS_IRQ_MST_ERR | IS_IRQ_STAT)) != 0) {
 417                 /* PCI Errors occured */
 418                 if ((HwStatus & IS_IRQ_STAT) != 0) {
 419                         SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E013, SKERR_SIRQ_E013MSG);
 420                 }
 421                 else {
 422                         SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E012, SKERR_SIRQ_E012MSG);
 423                 }
 424
 425                 /* Reset all bits in the PCI STATUS register */
 426                 SK_IN16(IoC, PCI_C(PCI_STATUS), &Word);
 427
 428                 SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON);
 429         SK_OUT16(IoC, PCI_C(PCI_STATUS), (SK_U16)(Word | PCI_ERRBITS));
 430                 SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 431
 432                 Para.Para64 = 0;
 433                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
 434         }
 435
 436 #ifdef GENESIS
 437         if (pAC->GIni.GIGenesis) {
 438
 439                 if ((HwStatus & IS_NO_STAT_M1) != 0) {
 440                         /* Ignore it */
 441                         /* This situation is also indicated in the descriptor */
 442                         SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INSTAT);
 443                 }
 444
 445                 if ((HwStatus & IS_NO_STAT_M2) != 0) {
 446                         /* Ignore it */
 447                         /* This situation is also indicated in the descriptor */
 448                         SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INSTAT);
 449                 }
 450
 451                 if ((HwStatus & IS_NO_TIST_M1) != 0) {
 452                         /* Ignore it */
 453                         /* This situation is also indicated in the descriptor */
 454                         SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INTIST);
 455                 }
 456
 457                 if ((HwStatus & IS_NO_TIST_M2) != 0) {
 458                         /* Ignore it */
 459                         /* This situation is also indicated in the descriptor */
 460                         SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INTIST);
 461                 }
 462         }
 463 #endif /* GENESIS */
 464
 465 #ifdef YUKON
 466         if (pAC->GIni.GIYukon) {
 467                 /* This is necessary only for Rx timing measurements */
 468                 if ((HwStatus & IS_IRQ_TIST_OV) != 0) {
 469                         /* increment Time Stamp Timer counter (high) */
 470                         pAC->GIni.GITimeStampCnt++;
 471
 472                         /* Clear Time Stamp Timer IRQ */
 473                         SK_OUT8(IoC, GMAC_TI_ST_CTRL, (SK_U8)GMT_ST_CLR_IRQ);
 474                 }
 475
 476                 if ((HwStatus & IS_IRQ_SENSOR) != 0) {
 477                         /* no sensors on 32-bit Yukon */
 478                         if (pAC->GIni.GIYukon32Bit) {
 479                                 /* disable HW Error IRQ */
 480                                 pAC->GIni.GIValIrqMask &= ~IS_HW_ERR;
 481                         }
 482                 }
 483         }
 484 #endif /* YUKON */
 485
 486         if ((HwStatus & IS_RAM_RD_PAR) != 0) {
 487                 SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_RD_PERR);
 488                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E014, SKERR_SIRQ_E014MSG);
 489                 Para.Para64 = 0;
 490                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
 491         }
 492
 493         if ((HwStatus & IS_RAM_WR_PAR) != 0) {
 494                 SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_WR_PERR);
 495                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E015, SKERR_SIRQ_E015MSG);
 496                 Para.Para64 = 0;
 497                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
 498         }
 499
 500         if ((HwStatus & IS_M1_PAR_ERR) != 0) {
 501                 SkMacParity(pAC, IoC, MAC_1);
 502         }
 503
 504         if ((HwStatus & IS_M2_PAR_ERR) != 0) {
 505                 SkMacParity(pAC, IoC, MAC_2);
 506         }
 507
 508         if ((HwStatus & IS_R1_PAR_ERR) != 0) {
 509                 /* Clear IRQ */
 510                 SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_P);
 511
 512                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E018, SKERR_SIRQ_E018MSG);
 513                 Para.Para64 = MAC_1;
 514                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 515
 516                 Para.Para32[0] = MAC_1;
 517                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 518         }
 519
 520         if ((HwStatus & IS_R2_PAR_ERR) != 0) {
 521                 /* Clear IRQ */
 522                 SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_P);
 523
 524                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E019, SKERR_SIRQ_E019MSG);
 525                 Para.Para64 = MAC_2;
 526                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 527
 528                 Para.Para32[0] = MAC_2;
 529                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 530         }
 531 }       /* SkGeHwErr */
 532
 533
 534 /******************************************************************************
 535  *
 536  *      SkGeSirqIsr() - Special Interrupt Service Routine
 537  *
 538  * Description: handles all non data transfer specific interrupts (slow path)
 539  *
 540  * Returns: N/A
 541  */
 542 void SkGeSirqIsr(
 543 SK_AC   *pAC,           /* adapter context */
 544 SK_IOC  IoC,            /* IO context */
 545 SK_U32  Istatus)        /* Interrupt status word */
 546 {
 547         SK_EVPARA       Para;
 548         SK_U32          RegVal32;       /* Read register value */
 549         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 550         SK_U16          PhyInt;
 551         int                     i;
 552
 553         if (((Istatus & IS_HW_ERR) & pAC->GIni.GIValIrqMask) != 0) {
 554                 /* read the HW Error Interrupt source */
 555                 SK_IN32(IoC, B0_HWE_ISRC, &RegVal32);
 556
 557                 SkGeHwErr(pAC, IoC, RegVal32);
 558         }
 559
 560         /*
 561          * Packet Timeout interrupts
 562          */
 563         /* Check whether MACs are correctly initialized */
 564         if (((Istatus & (IS_PA_TO_RX1 | IS_PA_TO_TX1)) != 0) &&
 565                 pAC->GIni.GP[MAC_1].PState == SK_PRT_RESET) {
 566                 /* MAC 1 was not initialized but Packet timeout occured */
 567                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E004,
 568                         SKERR_SIRQ_E004MSG);
 569         }
 570
 571         if (((Istatus & (IS_PA_TO_RX2 | IS_PA_TO_TX2)) != 0) &&
 572             pAC->GIni.GP[MAC_2].PState == SK_PRT_RESET) {
 573                 /* MAC 2 was not initialized but Packet timeout occured */
 574                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E005,
 575                         SKERR_SIRQ_E005MSG);
 576         }
 577
 578         if ((Istatus & IS_PA_TO_RX1) != 0) {
 579                 /* Means network is filling us up */
 580                 SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E002,
 581                         SKERR_SIRQ_E002MSG);
 582                 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX1);
 583         }
 584
 585         if ((Istatus & IS_PA_TO_RX2) != 0) {
 586                 /* Means network is filling us up */
 587                 SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E003,
 588                         SKERR_SIRQ_E003MSG);
 589                 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX2);
 590         }
 591
 592         if ((Istatus & IS_PA_TO_TX1) != 0) {
 593
 594                 pPrt = &pAC->GIni.GP[0];
 595
 596                 /* May be a normal situation in a server with a slow network */
 597                 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX1);
 598
 599 #ifdef GENESIS
 600                 if (pAC->GIni.GIGenesis) {
 601                         /*
 602                          * workaround: if in half duplex mode, check for Tx hangup.
 603                          * Read number of TX'ed bytes, wait for 10 ms, then compare
 604                          * the number with current value. If nothing changed, we assume
 605                          * that Tx is hanging and do a FIFO flush (see event routine).
 606                          */
 607                         if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
 608                                 pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) &&
 609                                 !pPrt->HalfDupTimerActive) {
 610                                 /*
 611                                  * many more pack. arb. timeouts may come in between,
 612                                  * we ignore those
 613                                  */
 614                                 pPrt->HalfDupTimerActive = SK_TRUE;
 615                                 /* Snap statistic counters */
 616                                 (void)SkXmUpdateStats(pAC, IoC, 0);
 617
 618                                 (void)SkXmMacStatistic(pAC, IoC, 0, XM_TXO_OK_HI, &RegVal32);
 619
 620                                 pPrt->LastOctets = (SK_U64)RegVal32 << 32;
 621
 622                                 (void)SkXmMacStatistic(pAC, IoC, 0, XM_TXO_OK_LO, &RegVal32);
 623
 624                                 pPrt->LastOctets += RegVal32;
 625
 626                                 Para.Para32[0] = 0;
 627                                 SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME,
 628                                         SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para);
 629                         }
 630                 }
 631 #endif /* GENESIS */
 632         }
 633
 634         if ((Istatus & IS_PA_TO_TX2) != 0) {
 635
 636                 pPrt = &pAC->GIni.GP[1];
 637
 638                 /* May be a normal situation in a server with a slow network */
 639                 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX2);
 640
 641 #ifdef GENESIS
 642                 if (pAC->GIni.GIGenesis) {
 643                         /* workaround: see above */
 644                         if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
 645                                  pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) &&
 646                                 !pPrt->HalfDupTimerActive) {
 647                                 pPrt->HalfDupTimerActive = SK_TRUE;
 648                                 /* Snap statistic counters */
 649                                 (void)SkXmUpdateStats(pAC, IoC, 1);
 650
 651                                 (void)SkXmMacStatistic(pAC, IoC, 1, XM_TXO_OK_HI, &RegVal32);
 652
 653                                 pPrt->LastOctets = (SK_U64)RegVal32 << 32;
 654
 655                                 (void)SkXmMacStatistic(pAC, IoC, 1, XM_TXO_OK_LO, &RegVal32);
 656
 657                                 pPrt->LastOctets += RegVal32;
 658
 659                                 Para.Para32[0] = 1;
 660                                 SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME,
 661                                         SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para);
 662                         }
 663                 }
 664 #endif /* GENESIS */
 665         }
 666
 667         /* Check interrupts of the particular queues */
 668         if ((Istatus & IS_R1_C) != 0) {
 669                 /* Clear IRQ */
 670                 SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_C);
 671                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E006,
 672                         SKERR_SIRQ_E006MSG);
 673                 Para.Para64 = MAC_1;
 674                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 675                 Para.Para32[0] = MAC_1;
 676                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 677         }
 678
 679         if ((Istatus & IS_R2_C) != 0) {
 680                 /* Clear IRQ */
 681                 SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_C);
 682                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E007,
 683                         SKERR_SIRQ_E007MSG);
 684                 Para.Para64 = MAC_2;
 685                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 686                 Para.Para32[0] = MAC_2;
 687                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 688         }
 689
 690         if ((Istatus & IS_XS1_C) != 0) {
 691                 /* Clear IRQ */
 692                 SK_OUT32(IoC, B0_XS1_CSR, CSR_IRQ_CL_C);
 693                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E008,
 694                         SKERR_SIRQ_E008MSG);
 695                 Para.Para64 = MAC_1;
 696                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 697                 Para.Para32[0] = MAC_1;
 698                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 699         }
 700
 701         if ((Istatus & IS_XA1_C) != 0) {
 702                 /* Clear IRQ */
 703                 SK_OUT32(IoC, B0_XA1_CSR, CSR_IRQ_CL_C);
 704                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E009,
 705                         SKERR_SIRQ_E009MSG);
 706                 Para.Para64 = MAC_1;
 707                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 708                 Para.Para32[0] = MAC_1;
 709                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 710         }
 711
 712         if ((Istatus & IS_XS2_C) != 0) {
 713                 /* Clear IRQ */
 714                 SK_OUT32(IoC, B0_XS2_CSR, CSR_IRQ_CL_C);
 715                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E010,
 716                         SKERR_SIRQ_E010MSG);
 717                 Para.Para64 = MAC_2;
 718                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 719                 Para.Para32[0] = MAC_2;
 720                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 721         }
 722
 723         if ((Istatus & IS_XA2_C) != 0) {
 724                 /* Clear IRQ */
 725                 SK_OUT32(IoC, B0_XA2_CSR, CSR_IRQ_CL_C);
 726                 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E011,
 727                         SKERR_SIRQ_E011MSG);
 728                 Para.Para64 = MAC_2;
 729                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
 730                 Para.Para32[0] = MAC_2;
 731                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
 732         }
 733
 734         /* External reg interrupt */
 735         if ((Istatus & IS_EXT_REG) != 0) {
 736                 /* Test IRQs from PHY */
 737                 for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
 738
 739                         pPrt = &pAC->GIni.GP[i];
 740
 741                         if (pPrt->PState == SK_PRT_RESET) {
 742                                 continue;
 743                         }
 744
 745 #ifdef GENESIS
 746                         if (pAC->GIni.GIGenesis) {
 747
 748                                 switch (pPrt->PhyType) {
 749
 750                                 case SK_PHY_XMAC:
 751                                         break;
 752
 753                                 case SK_PHY_BCOM:
 754                                         SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_STAT, &PhyInt);
 755
 756                                         if ((PhyInt & ~PHY_B_DEF_MSK) != 0) {
 757                                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 758                                                         ("Port %d Bcom Int: 0x%04X\n",
 759                                                         i, PhyInt));
 760                                                 SkPhyIsrBcom(pAC, IoC, i, PhyInt);
 761                                         }
 762                                         break;
 763 #ifdef OTHER_PHY
 764                                 case SK_PHY_LONE:
 765                                         SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_STAT, &PhyInt);
 766
 767                                         if ((PhyInt & PHY_L_DEF_MSK) != 0) {
 768                                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 769                                                         ("Port %d Lone Int: %x\n",
 770                                                         i, PhyInt));
 771                                                 SkPhyIsrLone(pAC, IoC, i, PhyInt);
 772                                         }
 773                                         break;
 774 #endif /* OTHER_PHY */
 775                                 }
 776                         }
 777 #endif /* GENESIS */
 778
 779 #ifdef YUKON
 780                         if (pAC->GIni.GIYukon) {
 781                                 /* Read PHY Interrupt Status */
 782                                 SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_STAT, &PhyInt);
 783
 784                                 if ((PhyInt & PHY_M_DEF_MSK) != 0) {
 785                                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 786                                                 ("Port %d Marv Int: 0x%04X\n",
 787                                                 i, PhyInt));
 788                                         SkPhyIsrGmac(pAC, IoC, i, PhyInt);
 789                                 }
 790                         }
 791 #endif /* YUKON */
 792                 }
 793         }
 794
 795         /* I2C Ready interrupt */
 796         if ((Istatus & IS_I2C_READY) != 0) {
 797 #ifdef SK_SLIM
 798         SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ);
 799 #else
 800                 SkI2cIsr(pAC, IoC);
 801 #endif
 802         }
 803
 804         /* SW forced interrupt */
 805         if ((Istatus & IS_IRQ_SW) != 0) {
 806                 /* clear the software IRQ */
 807                 SK_OUT8(IoC, B0_CTST, CS_CL_SW_IRQ);
 808         }
 809
 810         if ((Istatus & IS_LNK_SYNC_M1) != 0) {
 811                 /*
 812                  * We do NOT need the Link Sync interrupt, because it shows
 813                  * us only a link going down.
 814                  */
 815                 /* clear interrupt */
 816                 SK_OUT8(IoC, MR_ADDR(MAC_1, LNK_SYNC_CTRL), LED_CLR_IRQ);
 817         }
 818
 819         /* Check MAC after link sync counter */
 820         if ((Istatus & IS_MAC1) != 0) {
 821                 /* IRQ from MAC 1 */
 822                 SkMacIrq(pAC, IoC, MAC_1);
 823         }
 824
 825         if ((Istatus & IS_LNK_SYNC_M2) != 0) {
 826                 /*
 827                  * We do NOT need the Link Sync interrupt, because it shows
 828                  * us only a link going down.
 829                  */
 830                 /* clear interrupt */
 831                 SK_OUT8(IoC, MR_ADDR(MAC_2, LNK_SYNC_CTRL), LED_CLR_IRQ);
 832         }
 833
 834         /* Check MAC after link sync counter */
 835         if ((Istatus & IS_MAC2) != 0) {
 836                 /* IRQ from MAC 2 */
 837                 SkMacIrq(pAC, IoC, MAC_2);
 838         }
 839
 840         /* Timer interrupt (served last) */
 841         if ((Istatus & IS_TIMINT) != 0) {
 842                 /* check for HW Errors */
 843                 if (((Istatus & IS_HW_ERR) & ~pAC->GIni.GIValIrqMask) != 0) {
 844                         /* read the HW Error Interrupt source */
 845                         SK_IN32(IoC, B0_HWE_ISRC, &RegVal32);
 846
 847                         SkGeHwErr(pAC, IoC, RegVal32);
 848                 }
 849
 850                 SkHwtIsr(pAC, IoC);
 851         }
 852
 853 }       /* SkGeSirqIsr */
 854
 855
 856 #ifdef GENESIS
 857 /******************************************************************************
 858  *
 859  * SkGePortCheckShorts() - Implementing XMAC Workaround Errata # 2
 860  *
 861  * return:
 862  *      0       o.k. nothing needed
 863  *      1       Restart needed on this port
 864  */
 865 static int SkGePortCheckShorts(
 866 SK_AC   *pAC,           /* Adapter Context */
 867 SK_IOC  IoC,            /* IO Context */
 868 int             Port)           /* Which port should be checked */
 869 {
 870         SK_U32          Shorts;                 /* Short Event Counter */
 871         SK_U32          CheckShorts;    /* Check value for Short Event Counter */
 872         SK_U64          RxCts;                  /* Rx Counter (packets on network) */
 873         SK_U32          RxTmp;                  /* Rx temp. Counter */
 874         SK_U32          FcsErrCts;              /* FCS Error Counter */
 875         SK_GEPORT       *pPrt;                  /* GIni Port struct pointer */
 876         int                     Rtv;                    /* Return value */
 877         int                     i;
 878
 879         pPrt = &pAC->GIni.GP[Port];
 880
 881         /* Default: no action */
 882         Rtv = SK_HW_PS_NONE;
 883
 884         (void)SkXmUpdateStats(pAC, IoC, Port);
 885
 886         /* Extra precaution: check for short Event counter */
 887         (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts);
 888
 889         /*
 890          * Read Rx counters (packets seen on the network and not necessarily
 891          * really received.
 892          */
 893         RxCts = 0;
 894
 895         for (i = 0; i < ARRAY_SIZE(SkGeRxRegs); i++) {
 896
 897                 (void)SkXmMacStatistic(pAC, IoC, Port, SkGeRxRegs[i], &RxTmp);
 898
 899                 RxCts += (SK_U64)RxTmp;
 900         }
 901
 902         /* On default: check shorts against zero */
 903         CheckShorts = 0;
 904
 905         /* Extra precaution on active links */
 906         if (pPrt->PHWLinkUp) {
 907                 /* Reset Link Restart counter */
 908                 pPrt->PLinkResCt = 0;
 909                 pPrt->PAutoNegTOCt = 0;
 910
 911                 /* If link is up check for 2 */
 912                 CheckShorts = 2;
 913
 914                 (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXF_FCS_ERR, &FcsErrCts);
 915
 916                 if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
 917                     pPrt->PLipaAutoNeg == SK_LIPA_UNKNOWN &&
 918                     (pPrt->PLinkMode == SK_LMODE_HALF ||
 919                          pPrt->PLinkMode == SK_LMODE_FULL)) {
 920                         /*
 921                          * This is autosensing and we are in the fallback
 922                          * manual full/half duplex mode.
 923                          */
 924                         if (RxCts == pPrt->PPrevRx) {
 925                                 /* Nothing received, restart link */
 926                                 pPrt->PPrevFcs = FcsErrCts;
 927                                 pPrt->PPrevShorts = Shorts;
 928
 929                                 return(SK_HW_PS_RESTART);
 930                         }
 931                         else {
 932                                 pPrt->PLipaAutoNeg = SK_LIPA_MANUAL;
 933                         }
 934                 }
 935
 936                 if (((RxCts - pPrt->PPrevRx) > pPrt->PRxLim) ||
 937                     (!(FcsErrCts - pPrt->PPrevFcs))) {
 938                         /*
 939                          * Note: The compare with zero above has to be done the way shown,
 940                          * otherwise the Linux driver will have a problem.
 941                          */
 942                         /*
 943                          * We received a bunch of frames or no CRC error occured on the
 944                          * network -> ok.
 945                          */
 946                         pPrt->PPrevRx = RxCts;
 947                         pPrt->PPrevFcs = FcsErrCts;
 948                         pPrt->PPrevShorts = Shorts;
 949
 950                         return(SK_HW_PS_NONE);
 951                 }
 952
 953                 pPrt->PPrevFcs = FcsErrCts;
 954         }
 955
 956
 957         if ((Shorts - pPrt->PPrevShorts) > CheckShorts) {
 958                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
 959                         ("Short Event Count Restart Port %d \n", Port));
 960                 Rtv = SK_HW_PS_RESTART;
 961         }
 962
 963         pPrt->PPrevShorts = Shorts;
 964         pPrt->PPrevRx = RxCts;
 965
 966         return(Rtv);
 967 }       /* SkGePortCheckShorts */
 968 #endif /* GENESIS */
 969
 970
 971 /******************************************************************************
 972  *
 973  * SkGePortCheckUp() - Check if the link is up
 974  *
 975  * return:
 976  *      0       o.k. nothing needed
 977  *      1       Restart needed on this port
 978  *      2       Link came up
 979  */
 980 static int SkGePortCheckUp(
 981 SK_AC   *pAC,           /* Adapter Context */
 982 SK_IOC  IoC,            /* IO Context */
 983 int             Port)           /* Which port should be checked */
 984 {
 985         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
 986         SK_BOOL         AutoNeg;        /* Is Auto-negotiation used ? */
 987         int                     Rtv;            /* Return value */
 988
 989         Rtv = SK_HW_PS_NONE;
 990
 991         pPrt = &pAC->GIni.GP[Port];
 992
 993         if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) {
 994                 AutoNeg = SK_FALSE;
 995         }
 996         else {
 997                 AutoNeg = SK_TRUE;
 998         }
 999
1000 #ifdef GENESIS
1001         if (pAC->GIni.GIGenesis) {
1002
1003                 switch (pPrt->PhyType) {
1004
1005                 case SK_PHY_XMAC:
1006                         Rtv = SkGePortCheckUpXmac(pAC, IoC, Port, AutoNeg);
1007                         break;
1008                 case SK_PHY_BCOM:
1009                         Rtv = SkGePortCheckUpBcom(pAC, IoC, Port, AutoNeg);
1010                         break;
1011 #ifdef OTHER_PHY
1012                 case SK_PHY_LONE:
1013                         Rtv = SkGePortCheckUpLone(pAC, IoC, Port, AutoNeg);
1014                         break;
1015                 case SK_PHY_NAT:
1016                         Rtv = SkGePortCheckUpNat(pAC, IoC, Port, AutoNeg);
1017                         break;
1018 #endif /* OTHER_PHY */
1019                 }
1020         }
1021 #endif /* GENESIS */
1022
1023 #ifdef YUKON
1024         if (pAC->GIni.GIYukon) {
1025
1026                 Rtv = SkGePortCheckUpGmac(pAC, IoC, Port, AutoNeg);
1027         }
1028 #endif /* YUKON */
1029
1030         return(Rtv);
1031 }       /* SkGePortCheckUp */
1032
1033
1034 #ifdef GENESIS
1035 /******************************************************************************
1036  *
1037  * SkGePortCheckUpXmac() - Implementing of the Workaround Errata # 2
1038  *
1039  * return:
1040  *      0       o.k. nothing needed
1041  *      1       Restart needed on this port
1042  *      2       Link came up
1043  */
1044 static int SkGePortCheckUpXmac(
1045 SK_AC   *pAC,           /* Adapter Context */
1046 SK_IOC  IoC,            /* IO Context */
1047 int             Port,           /* Which port should be checked */
1048 SK_BOOL AutoNeg)        /* Is Auto-negotiation used ? */
1049 {
1050         SK_U32          Shorts;         /* Short Event Counter */
1051         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
1052         int                     Done;
1053         SK_U32          GpReg;          /* General Purpose register value */
1054         SK_U16          Isrc;           /* Interrupt source register */
1055         SK_U16          IsrcSum;        /* Interrupt source register sum */
1056         SK_U16          LpAb;           /* Link Partner Ability */
1057         SK_U16          ResAb;          /* Resolved Ability */
1058         SK_U16          ExtStat;        /* Extended Status Register */
1059         SK_U8           NextMode;       /* Next AutoSensing Mode */
1060
1061         pPrt = &pAC->GIni.GP[Port];
1062
1063         if (pPrt->PHWLinkUp) {
1064                 if (pPrt->PhyType != SK_PHY_XMAC) {
1065                         return(SK_HW_PS_NONE);
1066                 }
1067                 else {
1068                         return(SkGePortCheckShorts(pAC, IoC, Port));
1069                 }
1070         }
1071
1072         IsrcSum = pPrt->PIsave;
1073         pPrt->PIsave = 0;
1074
1075         /* Now wait for each port's link */
1076         if (pPrt->PLinkBroken) {
1077                 /* Link was broken */
1078                 XM_IN32(IoC, Port, XM_GP_PORT, &GpReg);
1079
1080                 if ((GpReg & XM_GP_INP_ASS) == 0) {
1081                         /* The Link is in sync */
1082                         XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1083                         IsrcSum |= Isrc;
1084                         SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum);
1085
1086                         if ((Isrc & XM_IS_INP_ASS) == 0) {
1087                                 /* It has been in sync since last time */
1088                                 /* Restart the PORT */
1089                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1090                                         ("Link in sync Restart Port %d\n", Port));
1091
1092                                 (void)SkXmUpdateStats(pAC, IoC, Port);
1093
1094                                 /* We now need to reinitialize the PrevShorts counter */
1095                                 (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts);
1096                                 pPrt->PPrevShorts = Shorts;
1097
1098                                 pPrt->PLinkBroken = SK_FALSE;
1099
1100                                 /*
1101                                  * Link Restart Workaround:
1102                                  *  it may be possible that the other Link side
1103                                  *  restarts its link as well an we detect
1104                                  *  another LinkBroken. To prevent this
1105                                  *  happening we check for a maximum number
1106                                  *  of consecutive restart. If those happens,
1107                                  *  we do NOT restart the active link and
1108                                  *  check whether the link is now o.k.
1109                                  */
1110                                 pPrt->PLinkResCt++;
1111
1112                                 pPrt->PAutoNegTimeOut = 0;
1113
1114                                 if (pPrt->PLinkResCt < SK_MAX_LRESTART) {
1115                                         return(SK_HW_PS_RESTART);
1116                                 }
1117
1118                                 pPrt->PLinkResCt = 0;
1119
1120                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1121                                         ("Do NOT restart on Port %d %x %x\n", Port, Isrc, IsrcSum));
1122                         }
1123                         else {
1124                                 pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND);
1125
1126                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1127                                         ("Save Sync/nosync Port %d %x %x\n", Port, Isrc, IsrcSum));
1128
1129                                 /* Do nothing more if link is broken */
1130                                 return(SK_HW_PS_NONE);
1131                         }
1132                 }
1133                 else {
1134                         /* Do nothing more if link is broken */
1135                         return(SK_HW_PS_NONE);
1136                 }
1137
1138         }
1139         else {
1140                 /* Link was not broken, check if it is */
1141                 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1142                 IsrcSum |= Isrc;
1143                 if ((Isrc & XM_IS_INP_ASS) != 0) {
1144                         XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1145                         IsrcSum |= Isrc;
1146                         if ((Isrc & XM_IS_INP_ASS) != 0) {
1147                                 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1148                                 IsrcSum |= Isrc;
1149                                 if ((Isrc & XM_IS_INP_ASS) != 0) {
1150                                         pPrt->PLinkBroken = SK_TRUE;
1151                                         /* Re-Init Link partner Autoneg flag */
1152                                         pPrt->PLipaAutoNeg = SK_LIPA_UNKNOWN;
1153                                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1154                                                 ("Link broken Port %d\n", Port));
1155
1156                                         /* Cable removed-> reinit sense mode */
1157                                         SkHWInitDefSense(pAC, IoC, Port);
1158
1159                                         return(SK_HW_PS_RESTART);
1160                                 }
1161                         }
1162                 }
1163                 else {
1164                         SkXmAutoNegLipaXmac(pAC, IoC, Port, Isrc);
1165
1166                         if (SkGePortCheckShorts(pAC, IoC, Port) == SK_HW_PS_RESTART) {
1167                                 return(SK_HW_PS_RESTART);
1168                         }
1169                 }
1170         }
1171
1172         /*
1173          * here we usually can check whether the link is in sync and
1174          * auto-negotiation is done.
1175          */
1176         XM_IN32(IoC, Port, XM_GP_PORT, &GpReg);
1177         XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1178         IsrcSum |= Isrc;
1179
1180         SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum);
1181
1182         if ((GpReg & XM_GP_INP_ASS) != 0 || (IsrcSum & XM_IS_INP_ASS) != 0) {
1183                 if ((GpReg & XM_GP_INP_ASS) == 0) {
1184                         /* Save Auto-negotiation Done interrupt only if link is in sync */
1185                         pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND);
1186                 }
1187 #ifdef DEBUG
1188                 if ((pPrt->PIsave & XM_IS_AND) != 0) {
1189                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1190                                 ("AutoNeg done rescheduled Port %d\n", Port));
1191                 }
1192 #endif /* DEBUG */
1193                 return(SK_HW_PS_NONE);
1194         }
1195
1196         if (AutoNeg) {
1197                 if ((IsrcSum & XM_IS_AND) != 0) {
1198                         SkHWLinkUp(pAC, IoC, Port);
1199                         Done = SkMacAutoNegDone(pAC, IoC, Port);
1200                         if (Done != SK_AND_OK) {
1201                                 /* Get PHY parameters, for debugging only */
1202                                 SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_LP, &LpAb);
1203                                 SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_RES_ABI, &ResAb);
1204                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1205                                         ("AutoNeg FAIL Port %d (LpAb %x, ResAb %x)\n",
1206                                          Port, LpAb, ResAb));
1207
1208                                 /* Try next possible mode */
1209                                 NextMode = SkHWSenseGetNext(pAC, IoC, Port);
1210                                 SkHWLinkDown(pAC, IoC, Port);
1211                                 if (Done == SK_AND_DUP_CAP) {
1212                                         /* GoTo next mode */
1213                                         SkHWSenseSetNext(pAC, IoC, Port, NextMode);
1214                                 }
1215
1216                                 return(SK_HW_PS_RESTART);
1217                         }
1218                         /*
1219                          * Dummy Read extended status to prevent extra link down/ups
1220                          * (clear Page Received bit if set)
1221                          */
1222                         SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_EXP, &ExtStat);
1223
1224                         return(SK_HW_PS_LINK);
1225                 }
1226
1227                 /* AutoNeg not done, but HW link is up. Check for timeouts */
1228                 pPrt->PAutoNegTimeOut++;
1229                 if (pPrt->PAutoNegTimeOut >= SK_AND_MAX_TO) {
1230                         /* Increase the Timeout counter */
1231                         pPrt->PAutoNegTOCt++;
1232
1233                         /* Timeout occured */
1234                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1235                                 ("AutoNeg timeout Port %d\n", Port));
1236                         if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1237                                 pPrt->PLipaAutoNeg != SK_LIPA_AUTO) {
1238                                 /* Set Link manually up */
1239                                 SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
1240                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1241                                         ("Set manual full duplex Port %d\n", Port));
1242                         }
1243
1244                         if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1245                                 pPrt->PLipaAutoNeg == SK_LIPA_AUTO &&
1246                                 pPrt->PAutoNegTOCt >= SK_MAX_ANEG_TO) {
1247                                 /*
1248                                  * This is rather complicated.
1249                                  * we need to check here whether the LIPA_AUTO
1250                                  * we saw before is false alert. We saw at one
1251                                  * switch ( SR8800) that on boot time it sends
1252                                  * just one auto-neg packet and does no further
1253                                  * auto-negotiation.
1254                                  * Solution: we restart the autosensing after
1255                                  * a few timeouts.
1256                                  */
1257                                 pPrt->PAutoNegTOCt = 0;
1258                                 pPrt->PLipaAutoNeg = SK_LIPA_UNKNOWN;
1259                                 SkHWInitDefSense(pAC, IoC, Port);
1260                         }
1261
1262                         /* Do the restart */
1263                         return(SK_HW_PS_RESTART);
1264                 }
1265         }
1266         else {
1267                 /* Link is up and we don't need more */
1268 #ifdef DEBUG
1269                 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1270                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1271                                 ("ERROR: Lipa auto detected on port %d\n", Port));
1272                 }
1273 #endif /* DEBUG */
1274                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1275                         ("Link sync(GP), Port %d\n", Port));
1276                 SkHWLinkUp(pAC, IoC, Port);
1277
1278                 /*
1279                  * Link sync (GP) and so assume a good connection. But if not received
1280                  * a bunch of frames received in a time slot (maybe broken tx cable)
1281                  * the port is restart.
1282                  */
1283                 return(SK_HW_PS_LINK);
1284         }
1285
1286         return(SK_HW_PS_NONE);
1287 }       /* SkGePortCheckUpXmac */
1288
1289
1290 /******************************************************************************
1291  *
1292  * SkGePortCheckUpBcom() - Check if the link is up on Bcom PHY
1293  *
1294  * return:
1295  *      0       o.k. nothing needed
1296  *      1       Restart needed on this port
1297  *      2       Link came up
1298  */
1299 static int SkGePortCheckUpBcom(
1300 SK_AC   *pAC,           /* Adapter Context */
1301 SK_IOC  IoC,            /* IO Context */
1302 int             Port,           /* Which port should be checked */
1303 SK_BOOL AutoNeg)        /* Is Auto-negotiation used ? */
1304 {
1305         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
1306         int                     Done;
1307         SK_U16          Isrc;           /* Interrupt source register */
1308         SK_U16          PhyStat;        /* Phy Status Register */
1309         SK_U16          ResAb;          /* Master/Slave resolution */
1310         SK_U16          Ctrl;           /* Broadcom control flags */
1311 #ifdef DEBUG
1312         SK_U16          LpAb;
1313         SK_U16          ExtStat;
1314 #endif /* DEBUG */
1315
1316         pPrt = &pAC->GIni.GP[Port];
1317
1318         /* Check for No HCD Link events (#10523) */
1319         SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &Isrc);
1320
1321 #ifdef xDEBUG
1322         if ((Isrc & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) ==
1323                 (PHY_B_IS_SCR_S_ER | PHY_B_IS_RRS_CHANGE | PHY_B_IS_LRS_CHANGE)) {
1324
1325                 SK_U32  Stat1, Stat2, Stat3;
1326
1327                 Stat1 = 0;
1328                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1);
1329                 CMSMPrintString(
1330                         pAC->pConfigTable,
1331                         MSG_TYPE_RUNTIME_INFO,
1332                         "CheckUp1 - Stat: %x, Mask: %x",
1333                         (void *)Isrc,
1334                         (void *)Stat1);
1335
1336                 Stat1 = 0;
1337                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1);
1338                 Stat2 = 0;
1339                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &Stat2);
1340                 Stat1 = Stat1 << 16 | Stat2;
1341                 Stat2 = 0;
1342                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2);
1343                 Stat3 = 0;
1344                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3);
1345                 Stat2 = Stat2 << 16 | Stat3;
1346                 CMSMPrintString(
1347                         pAC->pConfigTable,
1348                         MSG_TYPE_RUNTIME_INFO,
1349                         "Ctrl/Stat: %x, AN Adv/LP: %x",
1350                         (void *)Stat1,
1351                         (void *)Stat2);
1352
1353                 Stat1 = 0;
1354                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1);
1355                 Stat2 = 0;
1356                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2);
1357                 Stat1 = Stat1 << 16 | Stat2;
1358                 Stat2 = 0;
1359                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2);
1360                 Stat3 = 0;
1361                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &Stat3);
1362                 Stat2 = Stat2 << 16 | Stat3;
1363                 CMSMPrintString(
1364                         pAC->pConfigTable,
1365                         MSG_TYPE_RUNTIME_INFO,
1366                         "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x",
1367                         (void *)Stat1,
1368                         (void *)Stat2);
1369
1370                 Stat1 = 0;
1371                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1);
1372                 Stat2 = 0;
1373                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2);
1374                 Stat1 = Stat1 << 16 | Stat2;
1375                 Stat2 = 0;
1376                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2);
1377                 Stat3 = 0;
1378                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3);
1379                 Stat2 = Stat2 << 16 | Stat3;
1380                 CMSMPrintString(
1381                         pAC->pConfigTable,
1382                         MSG_TYPE_RUNTIME_INFO,
1383                         "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x",
1384                         (void *)Stat1,
1385                         (void *)Stat2);
1386         }
1387 #endif /* DEBUG */
1388
1389         if ((Isrc & (PHY_B_IS_NO_HDCL /* | PHY_B_IS_NO_HDC */)) != 0) {
1390                 /*
1391                  * Workaround BCom Errata:
1392                  *      enable and disable loopback mode if "NO HCD" occurs.
1393                  */
1394                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Ctrl);
1395                 SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
1396                         (SK_U16)(Ctrl | PHY_CT_LOOP));
1397                 SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
1398                         (SK_U16)(Ctrl & ~PHY_CT_LOOP));
1399                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1400                         ("No HCD Link event, Port %d\n", Port));
1401 #ifdef xDEBUG
1402                 CMSMPrintString(
1403                         pAC->pConfigTable,
1404                         MSG_TYPE_RUNTIME_INFO,
1405                         "No HCD link event, port %d.",
1406                         (void *)Port,
1407                         (void *)NULL);
1408 #endif /* DEBUG */
1409         }
1410
1411         /* Not obsolete: link status bit is latched to 0 and autoclearing! */
1412         SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1413
1414         if (pPrt->PHWLinkUp) {
1415                 return(SK_HW_PS_NONE);
1416         }
1417
1418 #ifdef xDEBUG
1419         {
1420                 SK_U32  Stat1, Stat2, Stat3;
1421
1422                 Stat1 = 0;
1423                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1);
1424                 CMSMPrintString(
1425                         pAC->pConfigTable,
1426                         MSG_TYPE_RUNTIME_INFO,
1427                         "CheckUp1a - Stat: %x, Mask: %x",
1428                         (void *)Isrc,
1429                         (void *)Stat1);
1430
1431                 Stat1 = 0;
1432                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1);
1433                 Stat2 = 0;
1434                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1435                 Stat1 = Stat1 << 16 | PhyStat;
1436                 Stat2 = 0;
1437                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2);
1438                 Stat3 = 0;
1439                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3);
1440                 Stat2 = Stat2 << 16 | Stat3;
1441                 CMSMPrintString(
1442                         pAC->pConfigTable,
1443                         MSG_TYPE_RUNTIME_INFO,
1444                         "Ctrl/Stat: %x, AN Adv/LP: %x",
1445                         (void *)Stat1,
1446                         (void *)Stat2);
1447
1448                 Stat1 = 0;
1449                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1);
1450                 Stat2 = 0;
1451                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2);
1452                 Stat1 = Stat1 << 16 | Stat2;
1453                 Stat2 = 0;
1454                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2);
1455                 Stat3 = 0;
1456                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb);
1457                 Stat2 = Stat2 << 16 | ResAb;
1458                 CMSMPrintString(
1459                         pAC->pConfigTable,
1460                         MSG_TYPE_RUNTIME_INFO,
1461                         "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x",
1462                         (void *)Stat1,
1463                         (void *)Stat2);
1464
1465                 Stat1 = 0;
1466                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1);
1467                 Stat2 = 0;
1468                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2);
1469                 Stat1 = Stat1 << 16 | Stat2;
1470                 Stat2 = 0;
1471                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2);
1472                 Stat3 = 0;
1473                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3);
1474                 Stat2 = Stat2 << 16 | Stat3;
1475                 CMSMPrintString(
1476                         pAC->pConfigTable,
1477                         MSG_TYPE_RUNTIME_INFO,
1478                         "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x",
1479                         (void *)Stat1,
1480                         (void *)Stat2);
1481         }
1482 #endif /* DEBUG */
1483
1484         /*
1485          * Here we usually can check whether the link is in sync and
1486          * auto-negotiation is done.
1487          */
1488
1489         SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1490
1491         SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1492
1493         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1494                 ("CheckUp Port %d, PhyStat: 0x%04X\n", Port, PhyStat));
1495
1496         SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb);
1497
1498         if ((ResAb & PHY_B_1000S_MSF) != 0) {
1499                 /* Error */
1500                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1501                         ("Master/Slave Fault port %d\n", Port));
1502
1503                 pPrt->PAutoNegFail = SK_TRUE;
1504                 pPrt->PMSStatus = SK_MS_STAT_FAULT;
1505
1506                 return(SK_HW_PS_RESTART);
1507         }
1508
1509         if ((PhyStat & PHY_ST_LSYNC) == 0) {
1510                 return(SK_HW_PS_NONE);
1511         }
1512
1513         pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
1514                 SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
1515
1516         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1517                 ("Port %d, ResAb: 0x%04X\n", Port, ResAb));
1518
1519         if (AutoNeg) {
1520                 if ((PhyStat & PHY_ST_AN_OVER) != 0) {
1521
1522                         SkHWLinkUp(pAC, IoC, Port);
1523
1524                         Done = SkMacAutoNegDone(pAC, IoC, Port);
1525
1526                         if (Done != SK_AND_OK) {
1527 #ifdef DEBUG
1528                                 /* Get PHY parameters, for debugging only */
1529                                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &LpAb);
1530                                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ExtStat);
1531                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1532                                         ("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
1533                                         Port, LpAb, ExtStat));
1534 #endif /* DEBUG */
1535                                 return(SK_HW_PS_RESTART);
1536                         }
1537                         else {
1538 #ifdef xDEBUG
1539                                 /* Dummy read ISR to prevent extra link downs/ups */
1540                                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat);
1541
1542                                 if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) {
1543                                         CMSMPrintString(
1544                                                 pAC->pConfigTable,
1545                                                 MSG_TYPE_RUNTIME_INFO,
1546                                                 "CheckUp2 - Stat: %x",
1547                                                 (void *)ExtStat,
1548                                                 (void *)NULL);
1549                                 }
1550 #endif /* DEBUG */
1551                                 return(SK_HW_PS_LINK);
1552                         }
1553                 }
1554         }
1555         else {  /* !AutoNeg */
1556                 /* Link is up and we don't need more. */
1557 #ifdef DEBUG
1558                 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1559                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1560                                 ("ERROR: Lipa auto detected on port %d\n", Port));
1561                 }
1562 #endif /* DEBUG */
1563
1564 #ifdef xDEBUG
1565                 /* Dummy read ISR to prevent extra link downs/ups */
1566                 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat);
1567
1568                 if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) {
1569                         CMSMPrintString(
1570                                 pAC->pConfigTable,
1571                                 MSG_TYPE_RUNTIME_INFO,
1572                                 "CheckUp3 - Stat: %x",
1573                                 (void *)ExtStat,
1574                                 (void *)NULL);
1575                 }
1576 #endif /* DEBUG */
1577
1578                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1579                         ("Link sync(GP), Port %d\n", Port));
1580                 SkHWLinkUp(pAC, IoC, Port);
1581
1582                 return(SK_HW_PS_LINK);
1583         }
1584
1585         return(SK_HW_PS_NONE);
1586 }       /* SkGePortCheckUpBcom */
1587 #endif /* GENESIS */
1588
1589
1590 #ifdef YUKON
1591 /******************************************************************************
1592  *
1593  * SkGePortCheckUpGmac() - Check if the link is up on Marvell PHY
1594  *
1595  * return:
1596  *      0       o.k. nothing needed
1597  *      1       Restart needed on this port
1598  *      2       Link came up
1599  */
1600 static int SkGePortCheckUpGmac(
1601 SK_AC   *pAC,           /* Adapter Context */
1602 SK_IOC  IoC,            /* IO Context */
1603 int             Port,           /* Which port should be checked */
1604 SK_BOOL AutoNeg)        /* Is Auto-negotiation used ? */
1605 {
1606         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
1607         int                     Done;
1608         SK_U16          PhyIsrc;        /* PHY Interrupt source */
1609         SK_U16          PhyStat;        /* PPY Status */
1610         SK_U16          PhySpecStat;/* PHY Specific Status */
1611         SK_U16          ResAb;          /* Master/Slave resolution */
1612         SK_EVPARA       Para;
1613 #ifdef DEBUG
1614         SK_U16          Word;           /* I/O helper */
1615 #endif /* DEBUG */
1616
1617         pPrt = &pAC->GIni.GP[Port];
1618
1619         if (pPrt->PHWLinkUp) {
1620                 return(SK_HW_PS_NONE);
1621         }
1622
1623         /* Read PHY Status */
1624         SkGmPhyRead(pAC, IoC, Port, PHY_MARV_STAT, &PhyStat);
1625
1626         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1627                 ("CheckUp Port %d, PhyStat: 0x%04X\n", Port, PhyStat));
1628
1629         /* Read PHY Interrupt Status */
1630         SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &PhyIsrc);
1631
1632         if ((PhyIsrc & PHY_M_IS_AN_COMPL) != 0) {
1633                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1634                         ("Auto-Negotiation Completed, PhyIsrc: 0x%04X\n", PhyIsrc));
1635         }
1636
1637         if ((PhyIsrc & PHY_M_IS_LSP_CHANGE) != 0) {
1638                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1639                         ("Link Speed Changed, PhyIsrc: 0x%04X\n", PhyIsrc));
1640         }
1641
1642         SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1643
1644         SkGmPhyRead(pAC, IoC, Port, PHY_MARV_1000T_STAT, &ResAb);
1645
1646         if ((ResAb & PHY_B_1000S_MSF) != 0) {
1647                 /* Error */
1648                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1649                         ("Master/Slave Fault port %d\n", Port));
1650
1651                 pPrt->PAutoNegFail = SK_TRUE;
1652                 pPrt->PMSStatus = SK_MS_STAT_FAULT;
1653
1654                 return(SK_HW_PS_RESTART);
1655         }
1656
1657         /* Read PHY Specific Status */
1658         SkGmPhyRead(pAC, IoC, Port, PHY_MARV_PHY_STAT, &PhySpecStat);
1659
1660         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1661                 ("Phy1000BT: 0x%04X, PhySpecStat: 0x%04X\n", ResAb, PhySpecStat));
1662
1663 #ifdef DEBUG
1664         SkGmPhyRead(pAC, IoC, Port, PHY_MARV_AUNE_EXP, &Word);
1665
1666         if ((PhyIsrc & PHY_M_IS_AN_PR) != 0 || (Word & PHY_ANE_RX_PG) != 0 ||
1667                 (PhySpecStat & PHY_M_PS_PAGE_REC) != 0)  {
1668                 /* Read PHY Next Page Link Partner */
1669                 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_NEPG_LP, &Word);
1670
1671                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1672                         ("Page Received, NextPage: 0x%04X\n", Word));
1673         }
1674 #endif /* DEBUG */
1675
1676         if ((PhySpecStat & PHY_M_PS_LINK_UP) == 0) {
1677                 return(SK_HW_PS_NONE);
1678         }
1679
1680         if ((PhySpecStat & PHY_M_PS_DOWNS_STAT) != 0 ||
1681                 (PhyIsrc & PHY_M_IS_DOWNSH_DET) != 0) {
1682                 /* Downshift detected */
1683                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E025, SKERR_SIRQ_E025MSG);
1684
1685                 Para.Para64 = Port;
1686                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_DOWNSHIFT_DET, Para);
1687
1688                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1689                         ("Downshift detected, PhyIsrc: 0x%04X\n", PhyIsrc));
1690         }
1691
1692         pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
1693                 SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
1694
1695         pPrt->PCableLen = (SK_U8)((PhySpecStat & PHY_M_PS_CABLE_MSK) >> 7);
1696
1697         if (AutoNeg) {
1698                 /* Auto-Negotiation Over ? */
1699                 if ((PhyStat & PHY_ST_AN_OVER) != 0) {
1700
1701                         SkHWLinkUp(pAC, IoC, Port);
1702
1703                         Done = SkMacAutoNegDone(pAC, IoC, Port);
1704
1705                         if (Done != SK_AND_OK) {
1706                                 return(SK_HW_PS_RESTART);
1707                         }
1708
1709                         return(SK_HW_PS_LINK);
1710                 }
1711         }
1712         else {  /* !AutoNeg */
1713                 /* Link is up and we don't need more */
1714 #ifdef DEBUG
1715                 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1716                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1717                                 ("ERROR: Lipa auto detected on port %d\n", Port));
1718                 }
1719 #endif /* DEBUG */
1720
1721                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1722                         ("Link sync, Port %d\n", Port));
1723                 SkHWLinkUp(pAC, IoC, Port);
1724
1725                 return(SK_HW_PS_LINK);
1726         }
1727
1728         return(SK_HW_PS_NONE);
1729 }       /* SkGePortCheckUpGmac */
1730 #endif /* YUKON */
1731
1732
1733 #ifdef OTHER_PHY
1734 /******************************************************************************
1735  *
1736  * SkGePortCheckUpLone() - Check if the link is up on Level One PHY
1737  *
1738  * return:
1739  *      0       o.k. nothing needed
1740  *      1       Restart needed on this port
1741  *      2       Link came up
1742  */
1743 static int SkGePortCheckUpLone(
1744 SK_AC   *pAC,           /* Adapter Context */
1745 SK_IOC  IoC,            /* IO Context */
1746 int             Port,           /* Which port should be checked */
1747 SK_BOOL AutoNeg)        /* Is Auto-negotiation used ? */
1748 {
1749         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
1750         int                     Done;
1751         SK_U16          Isrc;           /* Interrupt source register */
1752         SK_U16          LpAb;           /* Link Partner Ability */
1753         SK_U16          ExtStat;        /* Extended Status Register */
1754         SK_U16          PhyStat;        /* Phy Status Register */
1755         SK_U16          StatSum;
1756         SK_U8           NextMode;       /* Next AutoSensing Mode */
1757
1758         pPrt = &pAC->GIni.GP[Port];
1759
1760         if (pPrt->PHWLinkUp) {
1761                 return(SK_HW_PS_NONE);
1762         }
1763
1764         StatSum = pPrt->PIsave;
1765         pPrt->PIsave = 0;
1766
1767         /*
1768          * here we usually can check whether the link is in sync and
1769          * auto-negotiation is done.
1770          */
1771         SkXmPhyRead(pAC, IoC, Port, PHY_LONE_STAT, &PhyStat);
1772         StatSum |= PhyStat;
1773
1774         SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1775
1776         if ((PhyStat & PHY_ST_LSYNC) == 0) {
1777                 /* Save Auto-negotiation Done bit */
1778                 pPrt->PIsave = (SK_U16)(StatSum & PHY_ST_AN_OVER);
1779 #ifdef DEBUG
1780                 if ((pPrt->PIsave & PHY_ST_AN_OVER) != 0) {
1781                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1782                                 ("AutoNeg done rescheduled Port %d\n", Port));
1783                 }
1784 #endif /* DEBUG */
1785                 return(SK_HW_PS_NONE);
1786         }
1787
1788         if (AutoNeg) {
1789                 if ((StatSum & PHY_ST_AN_OVER) != 0) {
1790                         SkHWLinkUp(pAC, IoC, Port);
1791                         Done = SkMacAutoNegDone(pAC, IoC, Port);
1792                         if (Done != SK_AND_OK) {
1793                                 /* Get PHY parameters, for debugging only */
1794                                 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_AUNE_LP, &LpAb);
1795                                 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_1000T_STAT, &ExtStat);
1796                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1797                                         ("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
1798                                          Port, LpAb, ExtStat));
1799
1800                                 /* Try next possible mode */
1801                                 NextMode = SkHWSenseGetNext(pAC, IoC, Port);
1802                                 SkHWLinkDown(pAC, IoC, Port);
1803                                 if (Done == SK_AND_DUP_CAP) {
1804                                         /* GoTo next mode */
1805                                         SkHWSenseSetNext(pAC, IoC, Port, NextMode);
1806                                 }
1807
1808                                 return(SK_HW_PS_RESTART);
1809
1810                         }
1811                         else {
1812                                 /*
1813                                  * Dummy Read interrupt status to prevent
1814                                  * extra link down/ups
1815                                  */
1816                                 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
1817                                 return(SK_HW_PS_LINK);
1818                         }
1819                 }
1820
1821                 /* AutoNeg not done, but HW link is up. Check for timeouts */
1822                 pPrt->PAutoNegTimeOut++;
1823                 if (pPrt->PAutoNegTimeOut >= SK_AND_MAX_TO) {
1824                         /* Timeout occured */
1825                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1826                                 ("AutoNeg timeout Port %d\n", Port));
1827                         if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1828                                 pPrt->PLipaAutoNeg != SK_LIPA_AUTO) {
1829                                 /* Set Link manually up */
1830                                 SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
1831                                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1832                                         ("Set manual full duplex Port %d\n", Port));
1833                         }
1834
1835                         /* Do the restart */
1836                         return(SK_HW_PS_RESTART);
1837                 }
1838         }
1839         else {
1840                 /* Link is up and we don't need more */
1841 #ifdef DEBUG
1842                 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1843                         SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1844                                 ("ERROR: Lipa auto detected on port %d\n", Port));
1845                 }
1846 #endif /* DEBUG */
1847
1848                 /*
1849                  * Dummy Read interrupt status to prevent
1850                  * extra link down/ups
1851                  */
1852                 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
1853
1854                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1855                         ("Link sync(GP), Port %d\n", Port));
1856                 SkHWLinkUp(pAC, IoC, Port);
1857
1858                 return(SK_HW_PS_LINK);
1859         }
1860
1861         return(SK_HW_PS_NONE);
1862 }       /* SkGePortCheckUpLone */
1863
1864
1865 /******************************************************************************
1866  *
1867  * SkGePortCheckUpNat() - Check if the link is up on National PHY
1868  *
1869  * return:
1870  *      0       o.k. nothing needed
1871  *      1       Restart needed on this port
1872  *      2       Link came up
1873  */
1874 static int SkGePortCheckUpNat(
1875 SK_AC   *pAC,           /* Adapter Context */
1876 SK_IOC  IoC,            /* IO Context */
1877 int             Port,           /* Which port should be checked */
1878 SK_BOOL AutoNeg)        /* Is Auto-negotiation used ? */
1879 {
1880         /* todo: National */
1881         return(SK_HW_PS_NONE);
1882 }       /* SkGePortCheckUpNat */
1883 #endif /* OTHER_PHY */
1884
1885
1886 /******************************************************************************
1887  *
1888  *      SkGeSirqEvent() - Event Service Routine
1889  *
1890  * Description:
1891  *
1892  * Notes:
1893  */
1894 int     SkGeSirqEvent(
1895 SK_AC           *pAC,           /* Adapter Context */
1896 SK_IOC          IoC,            /* Io Context */
1897 SK_U32          Event,          /* Module specific Event */
1898 SK_EVPARA       Para)           /* Event specific Parameter */
1899 {
1900         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
1901         SK_U32          Port;
1902         SK_U32          Val32;
1903         int                     PortStat;
1904         SK_U8           Val8;
1905 #ifdef GENESIS
1906         SK_U64          Octets;
1907 #endif /* GENESIS */
1908
1909         Port = Para.Para32[0];
1910         pPrt = &pAC->GIni.GP[Port];
1911
1912         switch (Event) {
1913         case SK_HWEV_WATIM:
1914                 if (pPrt->PState == SK_PRT_RESET) {
1915
1916                         PortStat = SK_HW_PS_NONE;
1917                 }
1918                 else {
1919                         /* Check whether port came up */
1920                         PortStat = SkGePortCheckUp(pAC, IoC, (int)Port);
1921                 }
1922
1923                 switch (PortStat) {
1924                 case SK_HW_PS_RESTART:
1925                         if (pPrt->PHWLinkUp) {
1926                                 /* Set Link to down */
1927                                 SkHWLinkDown(pAC, IoC, (int)Port);
1928
1929                                 /*
1930                                  * Signal directly to RLMT to ensure correct
1931                                  * sequence of SWITCH and RESET event.
1932                                  */
1933                                 SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
1934                         }
1935
1936                         /* Restart needed */
1937                         SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
1938                         break;
1939
1940                 case SK_HW_PS_LINK:
1941                         /* Signal to RLMT */
1942                         SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_UP, Para);
1943                         break;
1944                 }
1945
1946                 /* Start again the check Timer */
1947                 if (pPrt->PHWLinkUp) {
1948                         Val32 = SK_WA_ACT_TIME;
1949                 }
1950                 else {
1951                         Val32 = SK_WA_INA_TIME;
1952                 }
1953
1954                 /* Todo: still needed for non-XMAC PHYs??? */
1955                 /* Start workaround Errata #2 timer */
1956                 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, Val32,
1957                         SKGE_HWAC, SK_HWEV_WATIM, Para);
1958                 break;
1959
1960         case SK_HWEV_PORT_START:
1961                 if (pPrt->PHWLinkUp) {
1962                         /*
1963                          * Signal directly to RLMT to ensure correct
1964                          * sequence of SWITCH and RESET event.
1965                          */
1966                         SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
1967                 }
1968
1969                 SkHWLinkDown(pAC, IoC, (int)Port);
1970
1971                 /* Schedule Port RESET */
1972                 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
1973
1974                 /* Start workaround Errata #2 timer */
1975                 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
1976                         SKGE_HWAC, SK_HWEV_WATIM, Para);
1977                 break;
1978
1979         case SK_HWEV_PORT_STOP:
1980                 if (pPrt->PHWLinkUp) {
1981                         /*
1982                          * Signal directly to RLMT to ensure correct
1983                          * sequence of SWITCH and RESET event.
1984                          */
1985                         SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
1986                 }
1987
1988                 /* Stop Workaround Timer */
1989                 SkTimerStop(pAC, IoC, &pPrt->PWaTimer);
1990
1991                 SkHWLinkDown(pAC, IoC, (int)Port);
1992                 break;
1993
1994         case SK_HWEV_UPDATE_STAT:
1995                 /* We do NOT need to update any statistics */
1996                 break;
1997
1998         case SK_HWEV_CLEAR_STAT:
1999                 /* We do NOT need to clear any statistics */
2000                 for (Port = 0; Port < (SK_U32)pAC->GIni.GIMacsFound; Port++) {
2001                         pPrt->PPrevRx = 0;
2002                         pPrt->PPrevFcs = 0;
2003                         pPrt->PPrevShorts = 0;
2004                 }
2005                 break;
2006
2007         case SK_HWEV_SET_LMODE:
2008                 Val8 = (SK_U8)Para.Para32[1];
2009                 if (pPrt->PLinkModeConf != Val8) {
2010                         /* Set New link mode */
2011                         pPrt->PLinkModeConf = Val8;
2012
2013                         /* Restart Port */
2014                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2015                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2016                 }
2017                 break;
2018
2019         case SK_HWEV_SET_FLOWMODE:
2020                 Val8 = (SK_U8)Para.Para32[1];
2021                 if (pPrt->PFlowCtrlMode != Val8) {
2022                         /* Set New Flow Control mode */
2023                         pPrt->PFlowCtrlMode = Val8;
2024
2025                         /* Restart Port */
2026                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2027                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2028                 }
2029                 break;
2030
2031         case SK_HWEV_SET_ROLE:
2032                 /* not possible for fiber */
2033                 if (!pAC->GIni.GICopperType) {
2034                         break;
2035                 }
2036                 Val8 = (SK_U8)Para.Para32[1];
2037                 if (pPrt->PMSMode != Val8) {
2038                         /* Set New Role (Master/Slave) mode */
2039                         pPrt->PMSMode = Val8;
2040
2041                         /* Restart Port */
2042                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2043                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2044                 }
2045                 break;
2046
2047         case SK_HWEV_SET_SPEED:
2048                 if (pPrt->PhyType != SK_PHY_MARV_COPPER) {
2049                         break;
2050                 }
2051                 Val8 = (SK_U8)Para.Para32[1];
2052                 if (pPrt->PLinkSpeed != Val8) {
2053                         /* Set New Speed parameter */
2054                         pPrt->PLinkSpeed = Val8;
2055
2056                         /* Restart Port */
2057                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2058                         SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2059                 }
2060                 break;
2061
2062 #ifdef GENESIS
2063         case SK_HWEV_HALFDUP_CHK:
2064                 if (pAC->GIni.GIGenesis) {
2065                         /*
2066                          * half duplex hangup workaround.
2067                          * See packet arbiter timeout interrupt for description
2068                          */
2069                         pPrt->HalfDupTimerActive = SK_FALSE;
2070                         if (pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
2071                                 pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) {
2072                                 /* Snap statistic counters */
2073                                 (void)SkXmUpdateStats(pAC, IoC, Port);
2074
2075                                 (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXO_OK_HI, &Val32);
2076
2077                                 Octets = (SK_U64)Val32 << 32;
2078
2079                                 (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXO_OK_LO, &Val32);
2080
2081                                 Octets += Val32;
2082
2083                                 if (pPrt->LastOctets == Octets) {
2084                                         /* Tx hanging, a FIFO flush restarts it */
2085                                         SkMacFlushTxFifo(pAC, IoC, Port);
2086                                 }
2087                         }
2088                 }
2089                 break;
2090 #endif /* GENESIS */
2091
2092         default:
2093                 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_SIRQ_E001, SKERR_SIRQ_E001MSG);
2094                 break;
2095         }
2096
2097         return(0);
2098 }       /* SkGeSirqEvent */
2099
2100
2101 #ifdef GENESIS
2102 /******************************************************************************
2103  *
2104  *      SkPhyIsrBcom() - PHY interrupt service routine
2105  *
2106  * Description: handles all interrupts from BCom PHY
2107  *
2108  * Returns: N/A
2109  */
2110 static void SkPhyIsrBcom(
2111 SK_AC           *pAC,           /* Adapter Context */
2112 SK_IOC          IoC,            /* Io Context */
2113 int                     Port,           /* Port Num = PHY Num */
2114 SK_U16          IStatus)        /* Interrupt Status */
2115 {
2116         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
2117         SK_EVPARA       Para;
2118
2119         pPrt = &pAC->GIni.GP[Port];
2120
2121         if ((IStatus & PHY_B_IS_PSE) != 0) {
2122                 /* Incorrectable pair swap error */
2123                 SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E022,
2124                         SKERR_SIRQ_E022MSG);
2125         }
2126
2127         if ((IStatus & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) != 0) {
2128
2129                 SkHWLinkDown(pAC, IoC, Port);
2130
2131                 Para.Para32[0] = (SK_U32)Port;
2132                 /* Signal to RLMT */
2133                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2134
2135                 /* Start workaround Errata #2 timer */
2136                 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
2137                         SKGE_HWAC, SK_HWEV_WATIM, Para);
2138         }
2139
2140 }       /* SkPhyIsrBcom */
2141 #endif /* GENESIS */
2142
2143
2144 #ifdef YUKON
2145 /******************************************************************************
2146  *
2147  *      SkPhyIsrGmac() - PHY interrupt service routine
2148  *
2149  * Description: handles all interrupts from Marvell PHY
2150  *
2151  * Returns: N/A
2152  */
2153 static void SkPhyIsrGmac(
2154 SK_AC           *pAC,           /* Adapter Context */
2155 SK_IOC          IoC,            /* Io Context */
2156 int                     Port,           /* Port Num = PHY Num */
2157 SK_U16          IStatus)        /* Interrupt Status */
2158 {
2159         SK_GEPORT       *pPrt;          /* GIni Port struct pointer */
2160         SK_EVPARA       Para;
2161         SK_U16          Word;
2162
2163         pPrt = &pAC->GIni.GP[Port];
2164
2165         if ((IStatus & (PHY_M_IS_AN_PR | PHY_M_IS_LST_CHANGE)) != 0) {
2166
2167                 SkHWLinkDown(pAC, IoC, Port);
2168
2169                 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_AUNE_ADV, &Word);
2170
2171                 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
2172                         ("AutoNeg.Adv: 0x%04X\n", Word));
2173
2174                 /* Set Auto-negotiation advertisement */
2175                 if (pPrt->PFlowCtrlMode == SK_FLOW_MODE_SYM_OR_REM) {
2176                         /* restore Asymmetric Pause bit */
2177                         SkGmPhyWrite(pAC, IoC, Port, PHY_MARV_AUNE_ADV,
2178                                 (SK_U16)(Word | PHY_M_AN_ASP));
2179                 }
2180
2181                 Para.Para32[0] = (SK_U32)Port;
2182                 /* Signal to RLMT */
2183                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2184         }
2185
2186         if ((IStatus & PHY_M_IS_AN_ERROR) != 0) {
2187                 /* Auto-Negotiation Error */
2188                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E023, SKERR_SIRQ_E023MSG);
2189         }
2190
2191         if ((IStatus & PHY_M_IS_FIFO_ERROR) != 0) {
2192                 /* FIFO Overflow/Underrun Error */
2193                 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E024, SKERR_SIRQ_E024MSG);
2194         }
2195
2196 }       /* SkPhyIsrGmac */
2197 #endif /* YUKON */
2198
2199
2200 #ifdef OTHER_PHY
2201 /******************************************************************************
2202  *
2203  *      SkPhyIsrLone() - PHY interrupt service routine
2204  *
2205  * Description: handles all interrupts from LONE PHY
2206  *
2207  * Returns: N/A
2208  */
2209 static void SkPhyIsrLone(
2210 SK_AC   *pAC,           /* Adapter Context */
2211 SK_IOC  IoC,            /* Io Context */
2212 int             Port,           /* Port Num = PHY Num */
2213 SK_U16  IStatus)        /* Interrupt Status */
2214 {
2215         SK_EVPARA       Para;
2216
2217         if (IStatus & (PHY_L_IS_DUP | PHY_L_IS_ISOL)) {
2218
2219                 SkHWLinkDown(pAC, IoC, Port);
2220
2221                 Para.Para32[0] = (SK_U32)Port;
2222                 /* Signal to RLMT */
2223                 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2224         }
2225
2226 }       /* SkPhyIsrLone */
2227 #endif /* OTHER_PHY */
2228
2229 /* End of File */