diff options
Diffstat (limited to 'drivers/net/sk98lin/skgesirq.c')
| -rw-r--r-- | drivers/net/sk98lin/skgesirq.c | 2229 |
1 files changed, 0 insertions, 2229 deletions
diff --git a/drivers/net/sk98lin/skgesirq.c b/drivers/net/sk98lin/skgesirq.c deleted file mode 100644 index e5ee6d63ba4..00000000000 --- a/drivers/net/sk98lin/skgesirq.c +++ /dev/null @@ -1,2229 +0,0 @@ -/****************************************************************************** - * - * Name: skgesirq.c - * Project: Gigabit Ethernet Adapters, Common Modules - * Version: $Revision: 1.92 $ - * Date: $Date: 2003/09/16 14:37:07 $ - * Purpose: Special IRQ module - * - ******************************************************************************/ - -/****************************************************************************** - * - * (C)Copyright 1998-2002 SysKonnect. - * (C)Copyright 2002-2003 Marvell. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * The information in this file is provided "AS IS" without warranty. - * - ******************************************************************************/ - -/* - * Special Interrupt handler - * - * The following abstract should show how this module is included - * in the driver path: - * - * In the ISR of the driver the bits for frame transmission complete and - * for receive complete are checked and handled by the driver itself. - * The bits of the slow path mask are checked after that and then the - * entry into the so-called "slow path" is prepared. It is an implementors - * decision whether this is executed directly or just scheduled by - * disabling the mask. In the interrupt service routine some events may be - * generated, so it would be a good idea to call the EventDispatcher - * right after this ISR. - * - * The Interrupt source register of the adapter is NOT read by this module. - * SO if the drivers implementor needs a while loop around the - * slow data paths interrupt bits, he needs to call the SkGeSirqIsr() for - * each loop entered. - * - * However, the MAC Interrupt status registers are read in a while loop. - * - */ - -#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM)))) -static const char SysKonnectFileId[] = - "@(#) $Id: skgesirq.c,v 1.92 2003/09/16 14:37:07 rschmidt Exp $ (C) Marvell."; -#endif - -#include "h/skdrv1st.h" /* Driver Specific Definitions */ -#ifndef SK_SLIM -#include "h/skgepnmi.h" /* PNMI Definitions */ -#include "h/skrlmt.h" /* RLMT Definitions */ -#endif -#include "h/skdrv2nd.h" /* Adapter Control and Driver specific Def. */ - -/* local function prototypes */ -#ifdef GENESIS -static int SkGePortCheckUpXmac(SK_AC*, SK_IOC, int, SK_BOOL); -static int SkGePortCheckUpBcom(SK_AC*, SK_IOC, int, SK_BOOL); -static void SkPhyIsrBcom(SK_AC*, SK_IOC, int, SK_U16); -#endif /* GENESIS */ -#ifdef YUKON -static int SkGePortCheckUpGmac(SK_AC*, SK_IOC, int, SK_BOOL); -static void SkPhyIsrGmac(SK_AC*, SK_IOC, int, SK_U16); -#endif /* YUKON */ -#ifdef OTHER_PHY -static int SkGePortCheckUpLone(SK_AC*, SK_IOC, int, SK_BOOL); -static int SkGePortCheckUpNat(SK_AC*, SK_IOC, int, SK_BOOL); -static void SkPhyIsrLone(SK_AC*, SK_IOC, int, SK_U16); -#endif /* OTHER_PHY */ - -#ifdef GENESIS -/* - * array of Rx counter from XMAC which are checked - * in AutoSense mode to check whether a link is not able to auto-negotiate. - */ -static const SK_U16 SkGeRxRegs[]= { - XM_RXF_64B, - XM_RXF_127B, - XM_RXF_255B, - XM_RXF_511B, - XM_RXF_1023B, - XM_RXF_MAX_SZ -} ; -#endif /* GENESIS */ - -#ifdef __C2MAN__ -/* - * Special IRQ function - * - * General Description: - * - */ -intro() -{} -#endif - -/****************************************************************************** - * - * SkHWInitDefSense() - Default Autosensing mode initialization - * - * Description: sets the PLinkMode for HWInit - * - * Returns: N/A - */ -static void SkHWInitDefSense( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port) /* Port Index (MAC_1 + n) */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - - pPrt = &pAC->GIni.GP[Port]; - - pPrt->PAutoNegTimeOut = 0; - - if (pPrt->PLinkModeConf != SK_LMODE_AUTOSENSE) { - pPrt->PLinkMode = pPrt->PLinkModeConf; - return; - } - - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("AutoSensing: First mode %d on Port %d\n", - (int)SK_LMODE_AUTOFULL, Port)); - - pPrt->PLinkMode = (SK_U8)SK_LMODE_AUTOFULL; - - return; -} /* SkHWInitDefSense */ - - -#ifdef GENESIS -/****************************************************************************** - * - * SkHWSenseGetNext() - Get Next Autosensing Mode - * - * Description: gets the appropriate next mode - * - * Note: - * - */ -static SK_U8 SkHWSenseGetNext( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port) /* Port Index (MAC_1 + n) */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - - pPrt = &pAC->GIni.GP[Port]; - - pPrt->PAutoNegTimeOut = 0; - - if (pPrt->PLinkModeConf != (SK_U8)SK_LMODE_AUTOSENSE) { - /* Leave all as configured */ - return(pPrt->PLinkModeConf); - } - - if (pPrt->PLinkMode == (SK_U8)SK_LMODE_AUTOFULL) { - /* Return next mode AUTOBOTH */ - return ((SK_U8)SK_LMODE_AUTOBOTH); - } - - /* Return default autofull */ - return ((SK_U8)SK_LMODE_AUTOFULL); -} /* SkHWSenseGetNext */ - - -/****************************************************************************** - * - * SkHWSenseSetNext() - Autosensing Set next mode - * - * Description: sets the appropriate next mode - * - * Returns: N/A - */ -static void SkHWSenseSetNext( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port, /* Port Index (MAC_1 + n) */ -SK_U8 NewMode) /* New Mode to be written in sense mode */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - - pPrt = &pAC->GIni.GP[Port]; - - pPrt->PAutoNegTimeOut = 0; - - if (pPrt->PLinkModeConf != (SK_U8)SK_LMODE_AUTOSENSE) { - return; - } - - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("AutoSensing: next mode %d on Port %d\n", - (int)NewMode, Port)); - - pPrt->PLinkMode = NewMode; - - return; -} /* SkHWSenseSetNext */ -#endif /* GENESIS */ - - -/****************************************************************************** - * - * SkHWLinkDown() - Link Down handling - * - * Description: handles the hardware link down signal - * - * Returns: N/A - */ -void SkHWLinkDown( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port) /* Port Index (MAC_1 + n) */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - - pPrt = &pAC->GIni.GP[Port]; - - /* Disable all MAC interrupts */ - SkMacIrqDisable(pAC, IoC, Port); - - /* Disable Receiver and Transmitter */ - SkMacRxTxDisable(pAC, IoC, Port); - - /* Init default sense mode */ - SkHWInitDefSense(pAC, IoC, Port); - - if (pPrt->PHWLinkUp == SK_FALSE) { - return; - } - - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Link down Port %d\n", Port)); - - /* Set Link to DOWN */ - pPrt->PHWLinkUp = SK_FALSE; - - /* Reset Port stati */ - pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_UNKNOWN; - pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE; - pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_INDETERMINATED; - - /* Re-init Phy especially when the AutoSense default is set now */ - SkMacInitPhy(pAC, IoC, Port, SK_FALSE); - - /* GP0: used for workaround of Rev. C Errata 2 */ - - /* Do NOT signal to RLMT */ - - /* Do NOT start the timer here */ -} /* SkHWLinkDown */ - - -/****************************************************************************** - * - * SkHWLinkUp() - Link Up handling - * - * Description: handles the hardware link up signal - * - * Returns: N/A - */ -static void SkHWLinkUp( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port) /* Port Index (MAC_1 + n) */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - - pPrt = &pAC->GIni.GP[Port]; - - if (pPrt->PHWLinkUp) { - /* We do NOT need to proceed on active link */ - return; - } - - pPrt->PHWLinkUp = SK_TRUE; - pPrt->PAutoNegFail = SK_FALSE; - pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_UNKNOWN; - - if (pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOHALF && - pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOFULL && - pPrt->PLinkMode != (SK_U8)SK_LMODE_AUTOBOTH) { - /* Link is up and no Auto-negotiation should be done */ - - /* Link speed should be the configured one */ - switch (pPrt->PLinkSpeed) { - case SK_LSPEED_AUTO: - /* default is 1000 Mbps */ - case SK_LSPEED_1000MBPS: - pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_1000MBPS; - break; - case SK_LSPEED_100MBPS: - pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_100MBPS; - break; - case SK_LSPEED_10MBPS: - pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_10MBPS; - break; - } - - /* Set Link Mode Status */ - if (pPrt->PLinkMode == SK_LMODE_FULL) { - pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_FULL; - } - else { - pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_HALF; - } - - /* No flow control without auto-negotiation */ - pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE; - - /* enable Rx/Tx */ - (void)SkMacRxTxEnable(pAC, IoC, Port); - } -} /* SkHWLinkUp */ - - -/****************************************************************************** - * - * SkMacParity() - MAC parity workaround - * - * Description: handles MAC parity errors correctly - * - * Returns: N/A - */ -static void SkMacParity( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -int Port) /* Port Index of the port failed */ -{ - SK_EVPARA Para; - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - SK_U32 TxMax; /* Tx Max Size Counter */ - - pPrt = &pAC->GIni.GP[Port]; - - /* Clear IRQ Tx Parity Error */ -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - - SK_OUT16(IoC, MR_ADDR(Port, TX_MFF_CTRL1), MFF_CLR_PERR); - } -#endif /* GENESIS */ - -#ifdef YUKON - if (pAC->GIni.GIYukon) { - /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ - SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T), - (SK_U8)((pAC->GIni.GIChipId == CHIP_ID_YUKON && - pAC->GIni.GIChipRev == 0) ? GMF_CLI_TX_FC : GMF_CLI_TX_PE)); - } -#endif /* YUKON */ - - if (pPrt->PCheckPar) { - - if (Port == MAC_1) { - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E016, SKERR_SIRQ_E016MSG); - } - else { - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E017, SKERR_SIRQ_E017MSG); - } - Para.Para64 = Port; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - - Para.Para32[0] = Port; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - - return; - } - - /* Check whether frames with a size of 1k were sent */ -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - /* Snap statistic counters */ - (void)SkXmUpdateStats(pAC, IoC, Port); - - (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXF_MAX_SZ, &TxMax); - } -#endif /* GENESIS */ - -#ifdef YUKON - if (pAC->GIni.GIYukon) { - - (void)SkGmMacStatistic(pAC, IoC, Port, GM_TXF_1518B, &TxMax); - } -#endif /* YUKON */ - - if (TxMax > 0) { - /* From now on check the parity */ - pPrt->PCheckPar = SK_TRUE; - } -} /* SkMacParity */ - - -/****************************************************************************** - * - * SkGeHwErr() - Hardware Error service routine - * - * Description: handles all HW Error interrupts - * - * Returns: N/A - */ -static void SkGeHwErr( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -SK_U32 HwStatus) /* Interrupt status word */ -{ - SK_EVPARA Para; - SK_U16 Word; - - if ((HwStatus & (IS_IRQ_MST_ERR | IS_IRQ_STAT)) != 0) { - /* PCI Errors occured */ - if ((HwStatus & IS_IRQ_STAT) != 0) { - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E013, SKERR_SIRQ_E013MSG); - } - else { - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E012, SKERR_SIRQ_E012MSG); - } - - /* Reset all bits in the PCI STATUS register */ - SK_IN16(IoC, PCI_C(PCI_STATUS), &Word); - - SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON); - SK_OUT16(IoC, PCI_C(PCI_STATUS), (SK_U16)(Word | PCI_ERRBITS)); - SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF); - - Para.Para64 = 0; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para); - } - -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - - if ((HwStatus & IS_NO_STAT_M1) != 0) { - /* Ignore it */ - /* This situation is also indicated in the descriptor */ - SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INSTAT); - } - - if ((HwStatus & IS_NO_STAT_M2) != 0) { - /* Ignore it */ - /* This situation is also indicated in the descriptor */ - SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INSTAT); - } - - if ((HwStatus & IS_NO_TIST_M1) != 0) { - /* Ignore it */ - /* This situation is also indicated in the descriptor */ - SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INTIST); - } - - if ((HwStatus & IS_NO_TIST_M2) != 0) { - /* Ignore it */ - /* This situation is also indicated in the descriptor */ - SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INTIST); - } - } -#endif /* GENESIS */ - -#ifdef YUKON - if (pAC->GIni.GIYukon) { - /* This is necessary only for Rx timing measurements */ - if ((HwStatus & IS_IRQ_TIST_OV) != 0) { - /* increment Time Stamp Timer counter (high) */ - pAC->GIni.GITimeStampCnt++; - - /* Clear Time Stamp Timer IRQ */ - SK_OUT8(IoC, GMAC_TI_ST_CTRL, (SK_U8)GMT_ST_CLR_IRQ); - } - - if ((HwStatus & IS_IRQ_SENSOR) != 0) { - /* no sensors on 32-bit Yukon */ - if (pAC->GIni.GIYukon32Bit) { - /* disable HW Error IRQ */ - pAC->GIni.GIValIrqMask &= ~IS_HW_ERR; - } - } - } -#endif /* YUKON */ - - if ((HwStatus & IS_RAM_RD_PAR) != 0) { - SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_RD_PERR); - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E014, SKERR_SIRQ_E014MSG); - Para.Para64 = 0; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para); - } - - if ((HwStatus & IS_RAM_WR_PAR) != 0) { - SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_WR_PERR); - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E015, SKERR_SIRQ_E015MSG); - Para.Para64 = 0; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para); - } - - if ((HwStatus & IS_M1_PAR_ERR) != 0) { - SkMacParity(pAC, IoC, MAC_1); - } - - if ((HwStatus & IS_M2_PAR_ERR) != 0) { - SkMacParity(pAC, IoC, MAC_2); - } - - if ((HwStatus & IS_R1_PAR_ERR) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_P); - - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E018, SKERR_SIRQ_E018MSG); - Para.Para64 = MAC_1; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - - Para.Para32[0] = MAC_1; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((HwStatus & IS_R2_PAR_ERR) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_P); - - SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E019, SKERR_SIRQ_E019MSG); - Para.Para64 = MAC_2; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - - Para.Para32[0] = MAC_2; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } -} /* SkGeHwErr */ - - -/****************************************************************************** - * - * SkGeSirqIsr() - Special Interrupt Service Routine - * - * Description: handles all non data transfer specific interrupts (slow path) - * - * Returns: N/A - */ -void SkGeSirqIsr( -SK_AC *pAC, /* adapter context */ -SK_IOC IoC, /* IO context */ -SK_U32 Istatus) /* Interrupt status word */ -{ - SK_EVPARA Para; - SK_U32 RegVal32; /* Read register value */ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - SK_U16 PhyInt; - int i; - - if (((Istatus & IS_HW_ERR) & pAC->GIni.GIValIrqMask) != 0) { - /* read the HW Error Interrupt source */ - SK_IN32(IoC, B0_HWE_ISRC, &RegVal32); - - SkGeHwErr(pAC, IoC, RegVal32); - } - - /* - * Packet Timeout interrupts - */ - /* Check whether MACs are correctly initialized */ - if (((Istatus & (IS_PA_TO_RX1 | IS_PA_TO_TX1)) != 0) && - pAC->GIni.GP[MAC_1].PState == SK_PRT_RESET) { - /* MAC 1 was not initialized but Packet timeout occured */ - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E004, - SKERR_SIRQ_E004MSG); - } - - if (((Istatus & (IS_PA_TO_RX2 | IS_PA_TO_TX2)) != 0) && - pAC->GIni.GP[MAC_2].PState == SK_PRT_RESET) { - /* MAC 2 was not initialized but Packet timeout occured */ - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E005, - SKERR_SIRQ_E005MSG); - } - - if ((Istatus & IS_PA_TO_RX1) != 0) { - /* Means network is filling us up */ - SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E002, - SKERR_SIRQ_E002MSG); - SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX1); - } - - if ((Istatus & IS_PA_TO_RX2) != 0) { - /* Means network is filling us up */ - SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E003, - SKERR_SIRQ_E003MSG); - SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX2); - } - - if ((Istatus & IS_PA_TO_TX1) != 0) { - - pPrt = &pAC->GIni.GP[0]; - - /* May be a normal situation in a server with a slow network */ - SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX1); - -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - /* - * workaround: if in half duplex mode, check for Tx hangup. - * Read number of TX'ed bytes, wait for 10 ms, then compare - * the number with current value. If nothing changed, we assume - * that Tx is hanging and do a FIFO flush (see event routine). - */ - if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF || - pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) && - !pPrt->HalfDupTimerActive) { - /* - * many more pack. arb. timeouts may come in between, - * we ignore those - */ - pPrt->HalfDupTimerActive = SK_TRUE; - /* Snap statistic counters */ - (void)SkXmUpdateStats(pAC, IoC, 0); - - (void)SkXmMacStatistic(pAC, IoC, 0, XM_TXO_OK_HI, &RegVal32); - - pPrt->LastOctets = (SK_U64)RegVal32 << 32; - - (void)SkXmMacStatistic(pAC, IoC, 0, XM_TXO_OK_LO, &RegVal32); - - pPrt->LastOctets += RegVal32; - - Para.Para32[0] = 0; - SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME, - SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para); - } - } -#endif /* GENESIS */ - } - - if ((Istatus & IS_PA_TO_TX2) != 0) { - - pPrt = &pAC->GIni.GP[1]; - - /* May be a normal situation in a server with a slow network */ - SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX2); - -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - /* workaround: see above */ - if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF || - pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) && - !pPrt->HalfDupTimerActive) { - pPrt->HalfDupTimerActive = SK_TRUE; - /* Snap statistic counters */ - (void)SkXmUpdateStats(pAC, IoC, 1); - - (void)SkXmMacStatistic(pAC, IoC, 1, XM_TXO_OK_HI, &RegVal32); - - pPrt->LastOctets = (SK_U64)RegVal32 << 32; - - (void)SkXmMacStatistic(pAC, IoC, 1, XM_TXO_OK_LO, &RegVal32); - - pPrt->LastOctets += RegVal32; - - Para.Para32[0] = 1; - SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME, - SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para); - } - } -#endif /* GENESIS */ - } - - /* Check interrupts of the particular queues */ - if ((Istatus & IS_R1_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E006, - SKERR_SIRQ_E006MSG); - Para.Para64 = MAC_1; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_1; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((Istatus & IS_R2_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E007, - SKERR_SIRQ_E007MSG); - Para.Para64 = MAC_2; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_2; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((Istatus & IS_XS1_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_XS1_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E008, - SKERR_SIRQ_E008MSG); - Para.Para64 = MAC_1; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_1; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((Istatus & IS_XA1_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_XA1_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E009, - SKERR_SIRQ_E009MSG); - Para.Para64 = MAC_1; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_1; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((Istatus & IS_XS2_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_XS2_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E010, - SKERR_SIRQ_E010MSG); - Para.Para64 = MAC_2; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_2; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - if ((Istatus & IS_XA2_C) != 0) { - /* Clear IRQ */ - SK_OUT32(IoC, B0_XA2_CSR, CSR_IRQ_CL_C); - SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E011, - SKERR_SIRQ_E011MSG); - Para.Para64 = MAC_2; - SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para); - Para.Para32[0] = MAC_2; - SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); - } - - /* External reg interrupt */ - if ((Istatus & IS_EXT_REG) != 0) { - /* Test IRQs from PHY */ - for (i = 0; i < pAC->GIni.GIMacsFound; i++) { - - pPrt = &pAC->GIni.GP[i]; - - if (pPrt->PState == SK_PRT_RESET) { - continue; - } - -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - - switch (pPrt->PhyType) { - - case SK_PHY_XMAC: - break; - - case SK_PHY_BCOM: - SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_STAT, &PhyInt); - - if ((PhyInt & ~PHY_B_DEF_MSK) != 0) { - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Port %d Bcom Int: 0x%04X\n", - i, PhyInt)); - SkPhyIsrBcom(pAC, IoC, i, PhyInt); - } - break; -#ifdef OTHER_PHY - case SK_PHY_LONE: - SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_STAT, &PhyInt); - - if ((PhyInt & PHY_L_DEF_MSK) != 0) { - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Port %d Lone Int: %x\n", - i, PhyInt)); - SkPhyIsrLone(pAC, IoC, i, PhyInt); - } - break; -#endif /* OTHER_PHY */ - } - } -#endif /* GENESIS */ - -#ifdef YUKON - if (pAC->GIni.GIYukon) { - /* Read PHY Interrupt Status */ - SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_STAT, &PhyInt); - - if ((PhyInt & PHY_M_DEF_MSK) != 0) { - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Port %d Marv Int: 0x%04X\n", - i, PhyInt)); - SkPhyIsrGmac(pAC, IoC, i, PhyInt); - } - } -#endif /* YUKON */ - } - } - - /* I2C Ready interrupt */ - if ((Istatus & IS_I2C_READY) != 0) { -#ifdef SK_SLIM - SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ); -#else - SkI2cIsr(pAC, IoC); -#endif - } - - /* SW forced interrupt */ - if ((Istatus & IS_IRQ_SW) != 0) { - /* clear the software IRQ */ - SK_OUT8(IoC, B0_CTST, CS_CL_SW_IRQ); - } - - if ((Istatus & IS_LNK_SYNC_M1) != 0) { - /* - * We do NOT need the Link Sync interrupt, because it shows - * us only a link going down. - */ - /* clear interrupt */ - SK_OUT8(IoC, MR_ADDR(MAC_1, LNK_SYNC_CTRL), LED_CLR_IRQ); - } - - /* Check MAC after link sync counter */ - if ((Istatus & IS_MAC1) != 0) { - /* IRQ from MAC 1 */ - SkMacIrq(pAC, IoC, MAC_1); - } - - if ((Istatus & IS_LNK_SYNC_M2) != 0) { - /* - * We do NOT need the Link Sync interrupt, because it shows - * us only a link going down. - */ - /* clear interrupt */ - SK_OUT8(IoC, MR_ADDR(MAC_2, LNK_SYNC_CTRL), LED_CLR_IRQ); - } - - /* Check MAC after link sync counter */ - if ((Istatus & IS_MAC2) != 0) { - /* IRQ from MAC 2 */ - SkMacIrq(pAC, IoC, MAC_2); - } - - /* Timer interrupt (served last) */ - if ((Istatus & IS_TIMINT) != 0) { - /* check for HW Errors */ - if (((Istatus & IS_HW_ERR) & ~pAC->GIni.GIValIrqMask) != 0) { - /* read the HW Error Interrupt source */ - SK_IN32(IoC, B0_HWE_ISRC, &RegVal32); - - SkGeHwErr(pAC, IoC, RegVal32); - } - - SkHwtIsr(pAC, IoC); - } - -} /* SkGeSirqIsr */ - - -#ifdef GENESIS -/****************************************************************************** - * - * SkGePortCheckShorts() - Implementing XMAC Workaround Errata # 2 - * - * return: - * 0 o.k. nothing needed - * 1 Restart needed on this port - */ -static int SkGePortCheckShorts( -SK_AC *pAC, /* Adapter Context */ -SK_IOC IoC, /* IO Context */ -int Port) /* Which port should be checked */ -{ - SK_U32 Shorts; /* Short Event Counter */ - SK_U32 CheckShorts; /* Check value for Short Event Counter */ - SK_U64 RxCts; /* Rx Counter (packets on network) */ - SK_U32 RxTmp; /* Rx temp. Counter */ - SK_U32 FcsErrCts; /* FCS Error Counter */ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - int Rtv; /* Return value */ - int i; - - pPrt = &pAC->GIni.GP[Port]; - - /* Default: no action */ - Rtv = SK_HW_PS_NONE; - - (void)SkXmUpdateStats(pAC, IoC, Port); - - /* Extra precaution: check for short Event counter */ - (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts); - - /* - * Read Rx counters (packets seen on the network and not necessarily - * really received. - */ - RxCts = 0; - - for (i = 0; i < ARRAY_SIZE(SkGeRxRegs); i++) { - - (void)SkXmMacStatistic(pAC, IoC, Port, SkGeRxRegs[i], &RxTmp); - - RxCts += (SK_U64)RxTmp; - } - - /* On default: check shorts against zero */ - CheckShorts = 0; - - /* Extra precaution on active links */ - if (pPrt->PHWLinkUp) { - /* Reset Link Restart counter */ - pPrt->PLinkResCt = 0; - pPrt->PAutoNegTOCt = 0; - - /* If link is up check for 2 */ - CheckShorts = 2; - - (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXF_FCS_ERR, &FcsErrCts); - - if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE && - pPrt->PLipaAutoNeg == SK_LIPA_UNKNOWN && - (pPrt->PLinkMode == SK_LMODE_HALF || - pPrt->PLinkMode == SK_LMODE_FULL)) { - /* - * This is autosensing and we are in the fallback - * manual full/half duplex mode. - */ - if (RxCts == pPrt->PPrevRx) { - /* Nothing received, restart link */ - pPrt->PPrevFcs = FcsErrCts; - pPrt->PPrevShorts = Shorts; - - return(SK_HW_PS_RESTART); - } - else { - pPrt->PLipaAutoNeg = SK_LIPA_MANUAL; - } - } - - if (((RxCts - pPrt->PPrevRx) > pPrt->PRxLim) || - (!(FcsErrCts - pPrt->PPrevFcs))) { - /* - * Note: The compare with zero above has to be done the way shown, - * otherwise the Linux driver will have a problem. - */ - /* - * We received a bunch of frames or no CRC error occured on the - * network -> ok. - */ - pPrt->PPrevRx = RxCts; - pPrt->PPrevFcs = FcsErrCts; - pPrt->PPrevShorts = Shorts; - - return(SK_HW_PS_NONE); - } - - pPrt->PPrevFcs = FcsErrCts; - } - - - if ((Shorts - pPrt->PPrevShorts) > CheckShorts) { - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Short Event Count Restart Port %d \n", Port)); - Rtv = SK_HW_PS_RESTART; - } - - pPrt->PPrevShorts = Shorts; - pPrt->PPrevRx = RxCts; - - return(Rtv); -} /* SkGePortCheckShorts */ -#endif /* GENESIS */ - - -/****************************************************************************** - * - * SkGePortCheckUp() - Check if the link is up - * - * return: - * 0 o.k. nothing needed - * 1 Restart needed on this port - * 2 Link came up - */ -static int SkGePortCheckUp( -SK_AC *pAC, /* Adapter Context */ -SK_IOC IoC, /* IO Context */ -int Port) /* Which port should be checked */ -{ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */ - int Rtv; /* Return value */ - - Rtv = SK_HW_PS_NONE; - - pPrt = &pAC->GIni.GP[Port]; - - if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) { - AutoNeg = SK_FALSE; - } - else { - AutoNeg = SK_TRUE; - } - -#ifdef GENESIS - if (pAC->GIni.GIGenesis) { - - switch (pPrt->PhyType) { - - case SK_PHY_XMAC: - Rtv = SkGePortCheckUpXmac(pAC, IoC, Port, AutoNeg); - break; - case SK_PHY_BCOM: - Rtv = SkGePortCheckUpBcom(pAC, IoC, Port, AutoNeg); - break; -#ifdef OTHER_PHY - case SK_PHY_LONE: - Rtv = SkGePortCheckUpLone(pAC, IoC, Port, AutoNeg); - break; - case SK_PHY_NAT: - Rtv = SkGePortCheckUpNat(pAC, IoC, Port, AutoNeg); - break; -#endif /* OTHER_PHY */ - } - } -#endif /* GENESIS */ - -#ifdef YUKON - if (pAC->GIni.GIYukon) { - - Rtv = SkGePortCheckUpGmac(pAC, IoC, Port, AutoNeg); - } -#endif /* YUKON */ - - return(Rtv); -} /* SkGePortCheckUp */ - - -#ifdef GENESIS -/****************************************************************************** - * - * SkGePortCheckUpXmac() - Implementing of the Workaround Errata # 2 - * - * return: - * 0 o.k. nothing needed - * 1 Restart needed on this port - * 2 Link came up - */ -static int SkGePortCheckUpXmac( -SK_AC *pAC, /* Adapter Context */ -SK_IOC IoC, /* IO Context */ -int Port, /* Which port should be checked */ -SK_BOOL AutoNeg) /* Is Auto-negotiation used ? */ -{ - SK_U32 Shorts; /* Short Event Counter */ - SK_GEPORT *pPrt; /* GIni Port struct pointer */ - int Done; - SK_U32 GpReg; /* General Purpose register value */ - SK_U16 Isrc; /* Interrupt source register */ - SK_U16 IsrcSum; /* Interrupt source register sum */ - SK_U16 LpAb; /* Link Partner Ability */ - SK_U16 ResAb; /* Resolved Ability */ - SK_U16 ExtStat; /* Extended Status Register */ - SK_U8 NextMode; /* Next AutoSensing Mode */ - - pPrt = &pAC->GIni.GP[Port]; - - if (pPrt->PHWLinkUp) { - if (pPrt->PhyType != SK_PHY_XMAC) { - return(SK_HW_PS_NONE); - } - else { - return(SkGePortCheckShorts(pAC, IoC, Port)); - } - } - - IsrcSum = pPrt->PIsave; - pPrt->PIsave = 0; - - /* Now wait for each port's link */ - if (pPrt->PLinkBroken) { - /* Link was broken */ - XM_IN32(IoC, Port, XM_GP_PORT, &GpReg); - - if ((GpReg & XM_GP_INP_ASS) == 0) { - /* The Link is in sync */ - XM_IN16(IoC, Port, XM_ISRC, &Isrc); - IsrcSum |= Isrc; - SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum); - - if ((Isrc & XM_IS_INP_ASS) == 0) { - /* It has been in sync since last time */ - /* Restart the PORT */ - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Link in sync Restart Port %d\n", Port)); - - (void)SkXmUpdateStats(pAC, IoC, Port); - - /* We now need to reinitialize the PrevShorts counter */ - (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts); - pPrt->PPrevShorts = Shorts; - - pPrt->PLinkBroken = SK_FALSE; - - /* - * Link Restart Workaround: - * it may be possible that the other Link side - * restarts its link as well an we detect - * another LinkBroken. To prevent this - * happening we check for a maximum number - * of consecutive restart. If those happens, - * we do NOT restart the active link and - * check whether the link is now o.k. - */ - pPrt->PLinkResCt++; - - pPrt->PAutoNegTimeOut = 0; - - if (pPrt->PLinkResCt < SK_MAX_LRESTART) { - return(SK_HW_PS_RESTART); - } - - pPrt->PLinkResCt = 0; - - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, - ("Do NOT restart on Port %d %x %x\n", Port, Isrc, IsrcSum)); - } - else { - pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND); - - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, - ("Save Sync/nosync Port %d %x %x\n", Port, Isrc, IsrcSum)); - - /* Do nothing more if link is broken */ - return(SK_HW_PS_NONE); - } - } - else { - /* Do nothing more if link is broken */ - return(SK_HW_PS_NONE); - } - - } - else { - /* Link was not broken, check if it is */ - XM_IN16(IoC, Port, XM_ISRC, &Isrc); - IsrcSum |= Isrc; - if ((Isrc & XM_IS_INP_ASS) != 0) { - XM_IN16(IoC, Port, XM_ISRC, &Isrc); - IsrcSum |= Isrc; - if ((Isrc & XM_IS_INP_ASS) != 0) { - XM_IN16(IoC, Port, XM_ISRC, &Isrc); - IsrcSum |= Isrc; - if ((Isrc & XM_IS_INP_ASS) != 0) { - pPrt->PLinkBroken = SK_TRUE; - /* Re-Init Link partner Autoneg flag */ - pPrt->PLipaAutoNeg = SK_LIPA_UNKNOWN; - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, - ("Link broken Port %d\n", Port)); - - /* Cable removed-> reinit sense mode */ - SkHWInitDefSense(pAC, IoC, Port); - - return(SK_HW_PS_RESTART); - } - } - } - else { - SkXmAutoNegLipaXmac(pAC, IoC, Port, Isrc); - - if (SkGePortCheckShorts(pAC, IoC, Port) == SK_HW_PS_RESTART) { - return(SK_HW_PS_RESTART); - } - } - } - - /* - * here we usually can check whether the link is in sync and - * auto-negotiation is done. - */ - XM_IN32(IoC, Port, XM_GP_PORT, &GpReg); - XM_IN16(IoC, Port, XM_ISRC, &Isrc); - IsrcSum |= Isrc; - - SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum); - - if ((GpReg & XM_GP_INP_ASS) != 0 || (IsrcSum & XM_IS_INP_ASS) != 0) { - if ((GpReg & XM_GP_INP_ASS) == 0) { - /* Save Auto-negotiation Done interrupt only if link is in sync */ - pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND); - } -#ifdef DEBUG - if ((pPrt->PIsave & XM_IS_AND) != 0) { - SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, - ("AutoNeg done rescheduled Port %d\n", Port)); - } |