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uboot-1.1.4-kirkwood/drivers/sk98lin/skgesirq.c

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/******************************************************************************
*
* Name: skgesirq.c
* Project: Gigabit Ethernet Adapters, Common Modules
* Version: $Revision: 1.1.1.1 $
* Date: $Date: 2008-12-15 11:39:21 $
* Purpose: Special IRQ module
*
******************************************************************************/
/******************************************************************************
*
* LICENSE:
* (C)Copyright 1998-2002 SysKonnect.
* (C)Copyright 2002-2006 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.
* /LICENSE
*
******************************************************************************/
/*
* 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.
*
*/
#include <config.h>
#ifdef CONFIG_SK98
#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 variables ************************************************************/
#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
static const char SysKonnectFileId[] =
"@(#) $Id: skgesirq.c,v 1.1.1.1 2008-12-15 11:39:21 wokes Exp $ (C) Marvell.";
#endif
/* 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, /* I/O 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) {
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, /* I/O 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, /* I/O 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, /* I/O 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) {
return;
}
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Link down Port %d\n", Port));
/* Set Link to DOWN */
pPrt->PHWLinkUp = SK_FALSE;
#ifndef SK_SLIM
/* 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;
#endif /* !SK_SLIM */
/* 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
*/
void SkHWLinkUp(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O 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;
#ifndef SK_SLIM
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)
((pPrt->PLinkSpeedCap & SK_LSPEED_CAP_1000MBPS) != 0) ?
SK_LSPEED_STAT_1000MBPS : SK_LSPEED_STAT_100MBPS;
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 */
pPrt->PLinkModeStatus = (SK_U8)
((pPrt->PLinkMode == (SK_U8)SK_LMODE_FULL) ?
SK_LMODE_STAT_FULL : SK_LMODE_STAT_HALF);
/* No flow control without auto-negotiation */
pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE;
#endif /* !SK_SLIM */
/* enable Rx/Tx */
(void)SkMacRxTxEnable(pAC, IoC, Port);
#ifndef SK_SLIM
}
#endif /* !SK_SLIM */
} /* 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, /* I/O context */
int Port) /* Port Index (MAC_1 + n) */
{
SK_EVPARA Para;
SK_GEPORT *pPrt; /* GIni Port struct pointer */
SK_U32 TxMax; /* Tx Max Size Counter */
TxMax = 0;
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 */
/******************************************************************************
*
* SkGeYuHwErr() - Hardware Error service routine (Genesis and Yukon)
*
* Description: handles all HW Error interrupts
*
* Returns: N/A
*/
static void SkGeYuHwErr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O 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(pAC, PCI_STATUS), &Word);
SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON);
SK_OUT16(IoC, PCI_C(pAC, 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);
}
} /* SkGeYuHwErr */
#ifdef YUK2
/******************************************************************************
*
* SkYuk2HwPortErr() - Service HW Errors for specified port (Yukon-2 only)
*
* Description: handles the HW Error interrupts for a specific port.
*
* Returns: N/A
*/
static void SkYuk2HwPortErr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 HwStatus, /* Interrupt status word */
int Port) /* Port Index (MAC_1 + n) */
{
SK_EVPARA Para;
int Queue;
if (Port == MAC_2) {
HwStatus >>= 8;
}
if ((HwStatus & Y2_HWE_L1_MASK) == 0) {
return;
}
if ((HwStatus & Y2_IS_PAR_RD1) != 0) {
/* Clear IRQ */
SK_OUT16(IoC, SELECT_RAM_BUFFER(Port, B3_RI_CTRL), RI_CLR_RD_PERR);
if (Port == MAC_1) {
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E028, SKERR_SIRQ_E028MSG);
}
else {
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E030, SKERR_SIRQ_E030MSG);
}
}
if ((HwStatus & Y2_IS_PAR_WR1) != 0) {
/* Clear IRQ */
SK_OUT16(IoC, SELECT_RAM_BUFFER(Port, B3_RI_CTRL), RI_CLR_WR_PERR);
if (Port == MAC_1) {
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E029, SKERR_SIRQ_E029MSG);
}
else {
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E031, SKERR_SIRQ_E031MSG);
}
}
if ((HwStatus & Y2_IS_PAR_MAC1) != 0) {
/* Clear IRQ */
SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
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);
}
}
if ((HwStatus & Y2_IS_PAR_RX1) != 0) {
if (Port == MAC_1) {
Queue = Q_R1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E018, SKERR_SIRQ_E018MSG);
}
else {
Queue = Q_R2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E019, SKERR_SIRQ_E019MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_PAR);
}
if ((HwStatus & Y2_IS_TCP_TXS1) != 0) {
if (Port == MAC_1) {
Queue = Q_XS1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E033, SKERR_SIRQ_E033MSG);
}
else {
Queue = Q_XS2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E035, SKERR_SIRQ_E035MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_TCP);
}
if ((HwStatus & Y2_IS_TCP_TXA1) != 0) {
if (Port == MAC_1) {
Queue = Q_XA1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E032, SKERR_SIRQ_E032MSG);
}
else {
Queue = Q_XA2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E034, SKERR_SIRQ_E034MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_TCP);
}
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);
} /* SkYuk2HwPortErr */
/******************************************************************************
*
* SkYuk2HwErr() - Hardware Error service routine (Yukon-2 only)
*
* Description: handles all HW Error interrupts
*
* Returns: N/A
*/
static void SkYuk2HwErr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 HwStatus) /* Interrupt status word */
{
SK_EVPARA Para;
SK_U16 Word;
SK_U32 DWord;
SK_U32 TlpHead[4];
int i;
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("HW-Error Status: 0x%08lX\n", HwStatus));
/* This is necessary only for Rx timing measurements */
if ((HwStatus & Y2_IS_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);
}
/* Evaluate Y2_IS_PCI_NEXP before Y2_IS_MST_ERR or Y2_IS_IRQ_STAT */
if ((HwStatus & Y2_IS_PCI_NEXP) != 0) {
/*
* This error is also mapped either to Master Abort (Y2_IS_MST_ERR)
* or Target Abort (Y2_IS_IRQ_STAT) bit and can only be cleared there.
* Therefore handle this event just by printing an error log entry.
*/
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E027, SKERR_SIRQ_E027MSG);
}
if ((HwStatus & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) != 0) {
/* PCI Errors occured */
if ((HwStatus & Y2_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(pAC, PCI_STATUS), &Word);
SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON);
SK_OUT16(IoC, PCI_C(pAC, 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);
}
/* check for PCI-Express Uncorrectable Error */
if ((HwStatus & Y2_IS_PCI_EXP) != 0) {
/*
* On PCI-Express bus bridges are called root complexes (RC).
* PCI-Express errors are recognized by the root complex too,
* which requests the system to handle the problem. After error
* occurence it may be that no access to the adapter may be performed
* any longer.
*/
/* Get uncorrectable error status */
SK_IN32(IoC, PCI_C(pAC, PEX_UNC_ERR_STAT), &DWord);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("PEX Uncorr.Error Status: 0x%08lX\n", DWord));
if (DWord != PEX_UNSUP_REQ) {
/* ignore Unsupported Request Errors */
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E026, SKERR_SIRQ_E026MSG);
}
if ((DWord & (PEX_FATAL_ERRORS | PEX_POIS_TLP)) != 0) {
/*
* Stop only, if the uncorrectable error is fatal or
* Poisoned TLP occured
*/
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, ("Header Log:"));
for (i = 0; i < 4; i++) {
/* get TLP Header from Log Registers */
SK_IN32(IoC, PCI_C(pAC, PEX_HEADER_LOG + i*4), &TlpHead[i]);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
(" 0x%08lX", TlpHead[i]));
}
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, ("\n"));
/* check for vendor defined broadcast message */
if (TlpHead[0] == 0x73004001 && (SK_U8)TlpHead[1] == 0x7f) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Vendor defined broadcast message\n"));
}
else {
Para.Para64 = 0;
SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
pAC->GIni.GIValHwIrqMask &= ~Y2_IS_PCI_EXP;
/* Rewrite HW IRQ mask */
SK_OUT32(IoC, B0_HWE_IMSK, pAC->GIni.GIValHwIrqMask);
}
}
/* clear any PEX errors */
SK_OUT32(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON);
SK_OUT32(IoC, PCI_C(pAC, PEX_UNC_ERR_STAT), 0xffffffffUL);
SK_OUT32(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
SK_IN32(IoC, PCI_C(pAC, PEX_UNC_ERR_STAT), &DWord);
if ((DWord & PEX_RX_OV) != 0) {
/* Dev #4.205 occured */
pAC->GIni.GIValHwIrqMask &= ~Y2_IS_PCI_EXP;
pAC->GIni.GIValIrqMask &= ~Y2_IS_HW_ERR;
}
}
for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
SkYuk2HwPortErr(pAC, IoC, HwStatus, i);
}
} /* SkYuk2HwErr */
#endif /* YUK2 */
/******************************************************************************
*
* SkGeSirqIsr() - Wrapper for Special Interrupt Service Routine
*
* Description: calls the preselected special ISR (slow path)
*
* Returns: N/A
*/
void SkGeSirqIsr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O context */
SK_U32 Istatus) /* Interrupt status word */
{
pAC->GIni.GIFunc.pSkGeSirqIsr(pAC, IoC, Istatus);
}
/******************************************************************************
*
* SkGeYuSirqIsr() - Special Interrupt Service Routine
*
* Description: handles all non data transfer specific interrupts (slow path)
*
* Returns: N/A
*/
void SkGeYuSirqIsr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O 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);
SkGeYuHwErr(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[MAC_1];
/* 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[MAC_2];
/* 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 PHY 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 PHY Int: 0x%04X\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 PHY Int: 0x%04X\n", i, PhyInt));
SkPhyIsrGmac(pAC, IoC, i, PhyInt);
}
}
#endif /* YUKON */
}
}
/* TWSI 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), LNK_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), LNK_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);
SkGeYuHwErr(pAC, IoC, RegVal32);
}
SkHwtIsr(pAC, IoC);
}
} /* SkGeYuSirqIsr */
#ifdef YUK2
/******************************************************************************
*
* SkYuk2PortSirq() - Service HW Errors for specified port (Yukon-2 only)
*
* Description: handles the HW Error interrupts for a specific port.
*
* Returns: N/A
*/
static void SkYuk2PortSirq(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 IStatus, /* Interrupt status word */
int Port) /* Port Index (MAC_1 + n) */
{
SK_EVPARA Para;
int Queue;
SK_U16 PhyInt;
if (Port == MAC_2) {
IStatus >>= 8;
}
/* Interrupt from PHY */
if ((IStatus & Y2_IS_IRQ_PHY1) != 0) {
/* Read PHY Interrupt Status */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &PhyInt);
if ((PhyInt & PHY_M_DEF_MSK) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Port %d PHY Int: 0x%04X\n", Port, PhyInt));
SkPhyIsrGmac(pAC, IoC, Port, PhyInt);
}
}
/* Interrupt from MAC */
if ((IStatus & Y2_IS_IRQ_MAC1) != 0) {
SkMacIrq(pAC, IoC, Port);
}
if ((IStatus & (Y2_IS_CHK_RX1 | Y2_IS_CHK_TXS1 | Y2_IS_CHK_TXA1)) != 0) {
if ((IStatus & Y2_IS_CHK_RX1) != 0) {
if (Port == MAC_1) {
Queue = Q_R1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E006,
SKERR_SIRQ_E006MSG);
}
else {
Queue = Q_R2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E007,
SKERR_SIRQ_E007MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_CHK);
}
if ((IStatus & Y2_IS_CHK_TXS1) != 0) {
if (Port == MAC_1) {
Queue = Q_XS1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E008,
SKERR_SIRQ_E008MSG);
}
else {
Queue = Q_XS2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E010,
SKERR_SIRQ_E010MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_CHK);
}
if ((IStatus & Y2_IS_CHK_TXA1) != 0) {
if (Port == MAC_1) {
Queue = Q_XA1;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E009,
SKERR_SIRQ_E009MSG);
}
else {
Queue = Q_XA2;
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E011,
SKERR_SIRQ_E011MSG);
}
/* Clear IRQ */
SK_OUT32(IoC, Q_ADDR(Queue, Q_CSR), BMU_CLR_IRQ_CHK);
}
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);
}
} /* SkYuk2PortSirq */
#endif /* YUK2 */
/******************************************************************************
*
* SkYuk2SirqIsr() - Special Interrupt Service Routine (Yukon-2 only)
*
* Description: handles all non data transfer specific interrupts (slow path)
*
* Returns: N/A
*/
void SkYuk2SirqIsr(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 Istatus) /* Interrupt status word */
{
#ifdef YUK2
SK_EVPARA Para;
SK_U32 RegVal32; /* Read register value */
SK_U8 Value;
/* HW Error indicated ? */
if (((Istatus & Y2_IS_HW_ERR) & pAC->GIni.GIValIrqMask) != 0) {
/* read the HW Error Interrupt source */
SK_IN32(IoC, B0_HWE_ISRC, &RegVal32);
SkYuk2HwErr(pAC, IoC, RegVal32);
}
/* Interrupt from ASF Subsystem */
if ((Istatus & Y2_IS_ASF) != 0) {
/* clear IRQ */
/* later on clearing should be done in ASF ISR handler */
SK_IN8(IoC, B28_Y2_ASF_STAT_CMD, &Value);
Value |= Y2_ASF_CLR_HSTI;
SK_OUT8(IoC, B28_Y2_ASF_STAT_CMD, Value);
/* Call IRQ handler in ASF Module */
/* TBD */
}
/* Check IRQ from polling unit */
if ((Istatus & Y2_IS_POLL_CHK) != 0) {
/* Clear IRQ */
SK_OUT32(IoC, POLL_CTRL, PC_CLR_IRQ_CHK);
SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E036,
SKERR_SIRQ_E036MSG);
Para.Para64 = 0;
SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
}
/* TWSI Ready interrupt */
if ((Istatus & Y2_IS_TWSI_RDY) != 0) {
#ifdef SK_SLIM
SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ);
#else
SkI2cIsr(pAC, IoC);
#endif
}
/* SW forced interrupt */
if ((Istatus & Y2_IS_IRQ_SW) != 0) {
/* clear the software IRQ */
SK_OUT8(IoC, B0_CTST, CS_CL_SW_IRQ);
}
if ((Istatus & Y2_IS_L1_MASK) != 0) {
SkYuk2PortSirq(pAC, IoC, Istatus, MAC_1);
}
if ((Istatus & Y2_IS_L2_MASK) != 0) {
SkYuk2PortSirq(pAC, IoC, Istatus, MAC_2);
}
/* Timer interrupt (served last) */
if ((Istatus & Y2_IS_TIMINT) != 0) {
if (((Istatus & Y2_IS_HW_ERR) & ~pAC->GIni.GIValIrqMask) != 0) {
/* read the HW Error Interrupt source */
SK_IN32(IoC, B0_HWE_ISRC, &RegVal32);
/* otherwise we would generate error log entries periodically */
RegVal32 &= pAC->GIni.GIValHwIrqMask;
if (RegVal32 != 0) {
SkYuk2HwErr(pAC, IoC, RegVal32);
}
}
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Timer Int: 0x%08lX\n", Istatus));
SkHwtIsr(pAC, IoC);
}
#endif /* YUK2 */
} /* SkYuk2SirqIsr */
#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, /* I/O Context */
int Port) /* Port Index (MAC_1 + n) */
{
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 < sizeof(SkGeRxRegs)/sizeof(SkGeRxRegs[0]); 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_U8)SK_LMODE_AUTOSENSE &&
pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_UNKNOWN &&
(pPrt->PLinkMode == (SK_U8)SK_LMODE_HALF ||
pPrt->PLinkMode == (SK_U8)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_U8)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, /* I/O Context */
int Port) /* Port Index (MAC_1 + n) */
{
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];
AutoNeg = pPrt->PLinkMode != SK_LMODE_HALF &&
pPrt->PLinkMode != SK_LMODE_FULL;
#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, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
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 PLinkBroken. 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_U8)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));
}
#endif /* DEBUG */
return(SK_HW_PS_NONE);
}
if (AutoNeg) {
/* Auto-Negotiation Done ? */
if ((IsrcSum & XM_IS_AND) != 0) {
SkHWLinkUp(pAC, IoC, Port);
Done = SkMacAutoNegDone(pAC, IoC, Port);
if (Done != SK_AND_OK) {
/* Get PHY parameters, for debugging only */
SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_LP, &LpAb);
SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_RES_ABI, &ResAb);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("AutoNeg FAIL Port %d (LpAb %x, ResAb %x)\n",
Port, LpAb, ResAb));
/* Try next possible mode */
NextMode = SkHWSenseGetNext(pAC, IoC, Port);
SkHWLinkDown(pAC, IoC, Port);
if (Done == SK_AND_DUP_CAP) {
/* GoTo next mode */
SkHWSenseSetNext(pAC, IoC, Port, NextMode);
}
return(SK_HW_PS_RESTART);
}
/*
* Dummy Read extended status to prevent extra link down/ups
* (clear Page Received bit if set)
*/
SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_EXP, &ExtStat);
return(SK_HW_PS_LINK);
}
/* AutoNeg not done, but HW link is up. Check for timeouts */
if (pPrt->PAutoNegTimeOut++ >= SK_AND_MAX_TO) {
/* Increase the Timeout counter */
pPrt->PAutoNegTOCt++;
/* Timeout occured */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("AutoNeg timeout Port %d\n", Port));
if (pPrt->PLinkModeConf == (SK_U8)SK_LMODE_AUTOSENSE &&
pPrt->PLipaAutoNeg != (SK_U8)SK_LIPA_AUTO) {
/* Set Link manually up */
SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Set manual full duplex Port %d\n", Port));
}
if (pPrt->PLinkModeConf == (SK_U8)SK_LMODE_AUTOSENSE &&
pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_AUTO &&
pPrt->PAutoNegTOCt >= SK_MAX_ANEG_TO) {
/*
* This is rather complicated.
* we need to check here whether the LIPA_AUTO
* we saw before is false alert. We saw at one
* switch (SR8800) that on boot time it sends
* just one auto-neg packet and does no further
* auto-negotiation.
* Solution: we restart the autosensing after
* a few timeouts.
*/
pPrt->PAutoNegTOCt = 0;
pPrt->PLipaAutoNeg = (SK_U8)SK_LIPA_UNKNOWN;
SkHWInitDefSense(pAC, IoC, Port);
}
/* Do the restart */
return(SK_HW_PS_RESTART);
}
}
else {
/* Link is up and we don't need more */
#ifdef DEBUG
if (pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_AUTO) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("ERROR: Lipa auto detected on port %d\n", Port));
}
#endif /* DEBUG */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Link sync(GP), Port %d\n", Port));
SkHWLinkUp(pAC, IoC, Port);
/*
* Link sync (GP) and so assume a good connection. But if no
* bunch of frames received in a time slot (maybe broken Tx cable)
* the port is restart.
*/
return(SK_HW_PS_LINK);
}
return(SK_HW_PS_NONE);
} /* SkGePortCheckUpXmac */
/******************************************************************************
*
* SkGePortCheckUpBcom() - Check if the link is up on Bcom PHY
*
* return:
* 0 o.k. nothing needed
* 1 Restart needed on this port
* 2 Link came up
*/
static int SkGePortCheckUpBcom(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_BOOL AutoNeg) /* Is Auto-negotiation used ? */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
int Done;
SK_U16 Isrc; /* Interrupt source register */
SK_U16 PhyStat; /* PHY Status Register */
SK_U16 ResAb; /* Master/Slave resolution */
SK_U16 Ctrl; /* Broadcom control flags */
#ifdef DEBUG
SK_U16 LpAb;
SK_U16 ExtStat;
#endif /* DEBUG */
pPrt = &pAC->GIni.GP[Port];
/* Check for No HCD Link events (#10523) */
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &Isrc);
if ((Isrc & (PHY_B_IS_NO_HDCL /* | PHY_B_IS_NO_HDC */)) != 0) {
/*
* Workaround BCom Errata:
* enable and disable loopback mode if "NO HCD" occurs.
*/
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Ctrl);
SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
(SK_U16)(Ctrl | PHY_CT_LOOP));
SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
(SK_U16)(Ctrl & ~PHY_CT_LOOP));
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("No HCD Link event, Port %d\n", Port));
}
/* Not obsolete: link status bit is latched to 0 and autoclearing! */
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
if (pPrt->PHWLinkUp) {
return(SK_HW_PS_NONE);
}
/*
* Here we usually can check whether the link is in sync and
* auto-negotiation is done.
*/
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("CheckUp Port %d, PhyStat: 0x%04X\n", Port, PhyStat));
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb);
if ((ResAb & PHY_B_1000S_MSF) != 0) {
/* Error */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("Master/Slave Fault, ResAb: 0x%04X\n", ResAb));
pPrt->PAutoNegFail = SK_TRUE;
pPrt->PMSStatus = SK_MS_STAT_FAULT;
return(SK_HW_PS_RESTART);
}
if ((PhyStat & PHY_ST_LSYNC) == 0) {
return(SK_HW_PS_NONE);
}
pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Port %d, ResAb: 0x%04X\n", Port, ResAb));
if (AutoNeg) {
/* Auto-Negotiation Over ? */
if ((PhyStat & PHY_ST_AN_OVER) != 0) {
SkHWLinkUp(pAC, IoC, Port);
Done = SkMacAutoNegDone(pAC, IoC, Port);
if (Done != SK_AND_OK) {
#ifdef DEBUG
/* Get PHY parameters, for debugging only */
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &LpAb);
SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ExtStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
Port, LpAb, ExtStat));
#endif /* DEBUG */
return(SK_HW_PS_RESTART);
}
else {
return(SK_HW_PS_LINK);
}
}
}
else { /* !AutoNeg */
/* Link is up and we don't need more */
#ifdef DEBUG
if (pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_AUTO) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("ERROR: Lipa auto detected on port %d\n", Port));
}
#endif /* DEBUG */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Link sync(GP), Port %d\n", Port));
SkHWLinkUp(pAC, IoC, Port);
return(SK_HW_PS_LINK);
}
return(SK_HW_PS_NONE);
} /* SkGePortCheckUpBcom */
#endif /* GENESIS */
#ifdef YUKON
/******************************************************************************
*
* SkGePortCheckUpGmac() - Check if the link is up on Marvell PHY
*
* return:
* 0 o.k. nothing needed
* 1 Restart needed on this port
* 2 Link came up
*/
static int SkGePortCheckUpGmac(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_BOOL AutoNeg) /* Is Auto-negotiation used ? */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
int Done;
SK_U16 PhyStat; /* PHY Status */
SK_U16 PhySpecStat;/* PHY Specific Status */
SK_U16 ResAb; /* Master/Slave resolution */
#ifndef SK_SLIM
SK_EVPARA Para;
#endif /* !SK_SLIM */
#ifdef DEBUG
SK_U16 Word; /* I/O helper */
#endif /* DEBUG */
pPrt = &pAC->GIni.GP[Port];
if (pPrt->PHWLinkUp) {
return(SK_HW_PS_NONE);
}
/* Read PHY Status */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_STAT, &PhyStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("CheckUp Port %d, PhyStat: 0x%04X\n", Port, PhyStat));
SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
if ((pPrt->PLinkSpeedCap & SK_LSPEED_CAP_1000MBPS) != 0) {
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_1000T_STAT, &ResAb);
if ((ResAb & PHY_B_1000S_MSF) != 0) {
/* Error */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("Master/Slave Fault, ResAb: 0x%04X\n", ResAb));
pPrt->PAutoNegFail = SK_TRUE;
pPrt->PMSStatus = SK_MS_STAT_FAULT;
return(SK_HW_PS_RESTART);
}
}
/* Read PHY Specific Status */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_PHY_STAT, &PhySpecStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Phy1000BT: 0x%04X, PhySpecStat: 0x%04X\n", ResAb, PhySpecStat));
#if (defined(DEBUG) && !defined(SK_SLIM))
/* Read PHY Auto-Negotiation Expansion */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_AUNE_EXP, &Word);
if (pAC->GIni.GICopperType && (Word & PHY_ANE_LP_CAP) == 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Link Partner not Auto-Neg. able, AN Exp.: 0x%04X\n", Word));
}
if ((Word & PHY_ANE_RX_PG) != 0 ||
(PhySpecStat & PHY_M_PS_PAGE_REC) != 0) {
/* Read PHY Next Page Link Partner */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_NEPG_LP, &Word);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Page received, NextPage: 0x%04X\n", Word));
}
#endif /* DEBUG && !SK_SLIM */
if ((PhySpecStat & PHY_M_PS_LINK_UP) == 0) {
/* Link down */
return(SK_HW_PS_NONE);
}
#ifdef XXX
SK_U16 PhyInt;
/* Read PHY Interrupt Status */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &PhyInt);
/* cross check that the link is really up */
if ((PhyInt & PHY_M_IS_LST_CHANGE) == 0) {
/* Link Status unchanged */
return(SK_HW_PS_NONE);
}
#endif /* XXX */
#ifndef SK_SLIM
if (pAC->GIni.GICopperType) {
if ((pPrt->PLinkSpeedCap & SK_LSPEED_CAP_1000MBPS) != 0) {
if ((PhySpecStat & PHY_M_PS_DOWNS_STAT) != 0) {
/* Downshift detected */
Para.Para64 = Port;
SkEventQueue(pAC, SKGE_DRV, SK_DRV_DOWNSHIFT_DET, Para);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Downshift detected, PhySpecStat: 0x%04X\n", PhySpecStat));
SK_ERR_LOG(pAC, SK_ERRCL_CONFIG, SKERR_SIRQ_E025,
SKERR_SIRQ_E025MSG);
}
pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
}
if ((PhySpecStat & PHY_M_PS_MDI_X_STAT) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("MDI Xover detected, PhyStat: 0x%04X\n", PhySpecStat));
}
/* on PHY 88E1112 & 88E1145 cable length is in Reg. 26, Page 5 */
if (pAC->GIni.GIChipId == CHIP_ID_YUKON_XL ||
pAC->GIni.GIChipId == CHIP_ID_YUKON_EC_U) {
/* select page 5 to access VCT DSP distance register */
SkGmPhyWrite(pAC, IoC, Port, PHY_MARV_EXT_ADR, 5);
/* get VCT DSP distance */
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_EXT_CTRL_2, &PhySpecStat);
SkGmPhyWrite(pAC, IoC, Port, PHY_MARV_EXT_ADR, 0);
pPrt->PCableLen = (SK_U8)(PhySpecStat & PHY_M_EC2_FO_AM_MSK);
}
else {
pPrt->PCableLen = (SK_U8)((PhySpecStat & PHY_M_PS_CABLE_MSK) >> 7);
}
}
#endif /* !SK_SLIM */
if (AutoNeg) {
/* Auto-Negotiation Complete ? */
if ((PhyStat & PHY_ST_AN_OVER) != 0) {
SkHWLinkUp(pAC, IoC, Port);
Done = SkMacAutoNegDone(pAC, IoC, Port);
if (Done != SK_AND_OK) {
return(SK_HW_PS_RESTART);
}
return(SK_HW_PS_LINK);
}
}
else { /* !AutoNeg */
#if (defined(DEBUG) && !defined(SK_SLIM))
if (pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_AUTO) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("ERROR: Lipa auto detected on port %d\n", Port));
}
#endif /* DEBUG && !SK_SLIM */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Link sync, Port %d\n", Port));
SkHWLinkUp(pAC, IoC, Port);
return(SK_HW_PS_LINK);
}
return(SK_HW_PS_NONE);
} /* SkGePortCheckUpGmac */
#endif /* YUKON */
#ifdef OTHER_PHY
/******************************************************************************
*
* SkGePortCheckUpLone() - Check if the link is up on Level One PHY
*
* return:
* 0 o.k. nothing needed
* 1 Restart needed on this port
* 2 Link came up
*/
static int SkGePortCheckUpLone(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_BOOL AutoNeg) /* Is Auto-negotiation used ? */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
int Done;
SK_U16 Isrc; /* Interrupt source register */
SK_U16 LpAb; /* Link Partner Ability */
SK_U16 ExtStat; /* Extended Status Register */
SK_U16 PhyStat; /* PHY Status Register */
SK_U16 StatSum;
SK_U8 NextMode; /* Next AutoSensing Mode */
pPrt = &pAC->GIni.GP[Port];
if (pPrt->PHWLinkUp) {
return(SK_HW_PS_NONE);
}
StatSum = pPrt->PIsave;
pPrt->PIsave = 0;
/*
* here we usually can check whether the link is in sync and
* auto-negotiation is done.
*/
SkXmPhyRead(pAC, IoC, Port, PHY_LONE_STAT, &PhyStat);
StatSum |= PhyStat;
SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
if ((PhyStat & PHY_ST_LSYNC) == 0) {
/* Save Auto-negotiation Done bit */
pPrt->PIsave = (SK_U16)(StatSum & PHY_ST_AN_OVER);
#ifdef DEBUG
if ((pPrt->PIsave & PHY_ST_AN_OVER) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("AutoNeg done rescheduled Port %d\n", Port));
}
#endif /* DEBUG */
return(SK_HW_PS_NONE);
}
if (AutoNeg) {
/* Auto-Negotiation Over ? */
if ((StatSum & PHY_ST_AN_OVER) != 0) {
SkHWLinkUp(pAC, IoC, Port);
Done = SkMacAutoNegDone(pAC, IoC, Port);
if (Done != SK_AND_OK) {
/* Get PHY parameters, for debugging only */
SkXmPhyRead(pAC, IoC, Port, PHY_LONE_AUNE_LP, &LpAb);
SkXmPhyRead(pAC, IoC, Port, PHY_LONE_1000T_STAT, &ExtStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
Port, LpAb, ExtStat));
/* Try next possible mode */
NextMode = SkHWSenseGetNext(pAC, IoC, Port);
SkHWLinkDown(pAC, IoC, Port);
if (Done == SK_AND_DUP_CAP) {
/* GoTo next mode */
SkHWSenseSetNext(pAC, IoC, Port, NextMode);
}
return(SK_HW_PS_RESTART);
}
else {
/*
* Dummy Read interrupt status to prevent
* extra link down/ups
*/
SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
return(SK_HW_PS_LINK);
}
}
/* AutoNeg not done, but HW link is up. Check for timeouts */
if (pPrt->PAutoNegTimeOut++ >= SK_AND_MAX_TO) {
/* Timeout occured */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("AutoNeg timeout Port %d\n", Port));
if (pPrt->PLinkModeConf == (SK_U8)SK_LMODE_AUTOSENSE &&
pPrt->PLipaAutoNeg != (SK_U8)SK_LIPA_AUTO) {
/* Set Link manually up */
SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Set manual full duplex Port %d\n", Port));
}
/* Do the restart */
return(SK_HW_PS_RESTART);
}
}
else {
/* Link is up and we don't need more */
#ifdef DEBUG
if (pPrt->PLipaAutoNeg == (SK_U8)SK_LIPA_AUTO) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_ERR,
("ERROR: Lipa auto detected on port %d\n", Port));
}
#endif /* DEBUG */
/*
* Dummy Read interrupt status to prevent
* extra link down/ups
*/
SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
("Link sync(GP), Port %d\n", Port));
SkHWLinkUp(pAC, IoC, Port);
return(SK_HW_PS_LINK);
}
return(SK_HW_PS_NONE);
} /* SkGePortCheckUpLone */
/******************************************************************************
*
* SkGePortCheckUpNat() - Check if the link is up on National PHY
*
* return:
* 0 o.k. nothing needed
* 1 Restart needed on this port
* 2 Link came up
*/
static int SkGePortCheckUpNat(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_BOOL AutoNeg) /* Is Auto-negotiation used ? */
{
/* todo: National */
return(SK_HW_PS_NONE);
} /* SkGePortCheckUpNat */
#endif /* OTHER_PHY */
/******************************************************************************
*
* SkGeSirqEvent() - Event Service Routine
*
* Description:
*
* Notes:
*/
int SkGeSirqEvent(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 Event, /* Module specific Event */
SK_EVPARA Para) /* Event specific Parameter */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
int Port;
SK_U32 Val32;
int PortStat;
#ifndef SK_SLIM
SK_U8 Val8;
#endif
#ifdef GENESIS
SK_U64 Octets;
#endif /* GENESIS */
Port = (int)Para.Para32[0];
pPrt = &pAC->GIni.GP[Port];
switch (Event) {
case SK_HWEV_WATIM:
if (pPrt->PState == SK_PRT_RESET) {
PortStat = SK_HW_PS_NONE;
}
else {
/* Check whether port came up */
PortStat = SkGePortCheckUp(pAC, IoC, Port);
}
switch (PortStat) {
case SK_HW_PS_RESTART:
if (pPrt->PHWLinkUp) {
/* Set Link to down */
SkHWLinkDown(pAC, IoC, Port);
/*
* Signal directly to RLMT to ensure correct
* sequence of SWITCH and RESET event.
*/
SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
}
/* Restart needed */
SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
break;
case SK_HW_PS_LINK:
/* Signal to RLMT */
SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_UP, Para);
break;
}
/* Start again the check Timer */
if (pPrt->PHWLinkUp) {
Val32 = SK_WA_ACT_TIME;
}
else {
Val32 = SK_WA_INA_TIME;
if (pAC->GIni.GIYukon) {
Val32 *= 5;
}
}
/* Start workaround Errata #2 timer */
SkTimerStart(pAC, IoC, &pPrt->PWaTimer, Val32,
SKGE_HWAC, SK_HWEV_WATIM, Para);
break;
case SK_HWEV_PORT_START:
#ifndef SK_SLIM
if (pPrt->PHWLinkUp) {
/*
* Signal directly to RLMT to ensure correct
* sequence of SWITCH and RESET event.
*/
SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
}
#endif /* !SK_SLIM */
SkHWLinkDown(pAC, IoC, Port);
/* Schedule Port RESET */
SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
/* Start workaround Errata #2 timer */
SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
SKGE_HWAC, SK_HWEV_WATIM, Para);
break;
case SK_HWEV_PORT_STOP:
#ifndef SK_SLIM
if (pPrt->PHWLinkUp) {
/*
* Signal directly to RLMT to ensure correct
* sequence of SWITCH and RESET event.
*/
SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
}
#endif /* !SK_SLIM */
/* Stop Workaround Timer */
SkTimerStop(pAC, IoC, &pPrt->PWaTimer);
SkHWLinkDown(pAC, IoC, Port);
break;
#ifndef SK_SLIM
case SK_HWEV_UPDATE_STAT:
/* We do NOT need to update any statistics */
break;
case SK_HWEV_CLEAR_STAT:
/* We do NOT need to clear any statistics */
for (Port = 0; Port < pAC->GIni.GIMacsFound; Port++) {
pPrt->PPrevRx = 0;
pPrt->PPrevFcs = 0;
pPrt->PPrevShorts = 0;
}
break;
case SK_HWEV_SET_LMODE:
Val8 = (SK_U8)Para.Para32[1];
if (pPrt->PLinkModeConf != Val8) {
/* Set New link mode */
pPrt->PLinkModeConf = Val8;
/* Restart Port */
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
}
break;
case SK_HWEV_SET_FLOWMODE:
Val8 = (SK_U8)Para.Para32[1];
if (pPrt->PFlowCtrlMode != Val8) {
/* Set New Flow Control mode */
pPrt->PFlowCtrlMode = Val8;
/* Restart Port */
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
}
break;
case SK_HWEV_SET_ROLE:
/* not possible for fiber */
if (!pAC->GIni.GICopperType) {
break;
}
Val8 = (SK_U8)Para.Para32[1];
if (pPrt->PMSMode != Val8) {
/* Set New Role (Master/Slave) mode */
pPrt->PMSMode = Val8;
/* Restart Port */
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
}
break;
case SK_HWEV_SET_SPEED:
if (pPrt->PhyType != SK_PHY_MARV_COPPER) {
break;
}
Val8 = (SK_U8)Para.Para32[1];
if (pPrt->PLinkSpeed != Val8) {
/* Set New Speed parameter */
pPrt->PLinkSpeed = Val8;
/* Restart Port */
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
}
break;
#endif /* !SK_SLIM */
#ifdef GENESIS
case SK_HWEV_HALFDUP_CHK:
if (pAC->GIni.GIGenesis) {
/*
* half duplex hangup workaround.
* See packet arbiter timeout interrupt for description
*/
pPrt->HalfDupTimerActive = SK_FALSE;
if (pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) {
/* Snap statistic counters */
(void)SkXmUpdateStats(pAC, IoC, Port);
(void)SkXmMacStatistic(pAC, IoC, Port, XM_TXO_OK_HI, &Val32);
Octets = (SK_U64)Val32 << 32;
(void)SkXmMacStatistic(pAC, IoC, Port, XM_TXO_OK_LO, &Val32);
Octets += Val32;
if (pPrt->LastOctets == Octets) {
/* Tx hanging, a FIFO flush restarts it */
SkMacFlushTxFifo(pAC, IoC, Port);
}
}
}
break;
#endif /* GENESIS */
default:
SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_SIRQ_E001, SKERR_SIRQ_E001MSG);
break;
}
return(0);
} /* SkGeSirqEvent */
#ifdef GENESIS
/******************************************************************************
*
* SkPhyIsrBcom() - PHY interrupt service routine
*
* Description: handles all interrupts from BCom PHY
*
* Returns: N/A
*/
static void SkPhyIsrBcom(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_U16 IStatus) /* Interrupt Status */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
SK_EVPARA Para;
pPrt = &pAC->GIni.GP[Port];
if ((IStatus & PHY_B_IS_PSE) != 0) {
/* Incorrectable pair swap error */
SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E022,
SKERR_SIRQ_E022MSG);
}
if ((IStatus & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) != 0) {
SkHWLinkDown(pAC, IoC, Port);
Para.Para32[0] = (SK_U32)Port;
/* Signal to RLMT */
SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
/* Start workaround Errata #2 timer */
SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
SKGE_HWAC, SK_HWEV_WATIM, Para);
}
} /* SkPhyIsrBcom */
#endif /* GENESIS */
#ifdef YUKON
/******************************************************************************
*
* SkPhyIsrGmac() - PHY interrupt service routine
*
* Description: handles all interrupts from Marvell PHY
*
* Returns: N/A
*/
static void SkPhyIsrGmac(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_U16 IStatus) /* Interrupt Status */
{
SK_GEPORT *pPrt; /* GIni Port struct pointer */
SK_EVPARA Para;
#ifdef XXX
SK_U16 Word;
#endif /* XXX */
pPrt = &pAC->GIni.GP[Port];
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Port %d PHY IRQ, PhyIsrc: 0x%04X\n", Port, IStatus));
if ((IStatus & PHY_M_IS_LST_CHANGE) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Link Status changed\n"));
Para.Para32[0] = (SK_U32)Port;
if (pPrt->PHWLinkUp) {
SkHWLinkDown(pAC, IoC, Port);
#ifdef XXX
SkGmPhyRead(pAC, IoC, Port, PHY_MARV_AUNE_ADV, &Word);
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("AutoNeg.Adv: 0x%04X\n", Word));
/* Set Auto-negotiation advertisement */
if (pAC->GIni.GIChipId != CHIP_ID_YUKON_FE &&
pPrt->PFlowCtrlMode == SK_FLOW_MODE_SYM_OR_REM) {
/* restore Asymmetric Pause bit */
SkGmPhyWrite(pAC, IoC, Port, PHY_MARV_AUNE_ADV,
(SK_U16)(Word | PHY_M_AN_ASP));
}
#endif /* XXX */
/* Signal to RLMT */
SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
}
else {
if ((IStatus & PHY_M_IS_AN_COMPL) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Auto-Negotiation completed\n"));
}
if ((IStatus & PHY_M_IS_LSP_CHANGE) != 0) {
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Link Speed changed\n"));
}
SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_WATIM, Para);
}
}
if ((IStatus & PHY_M_IS_AN_ERROR) != 0) {
/* the copper PHY makes 1 retry */
if (pAC->GIni.GICopperType) {
/* not logged as error, it might be the first attempt */
SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
("Auto-Negotiation Error\n"));
}
else {
/* Auto-Negotiation Error */
SK_ERR_LOG(pAC, SK_ERRCL_CONFIG, SKERR_SIRQ_E023, SKERR_SIRQ_E023MSG);
}
}
if ((IStatus & PHY_M_IS_FIFO_ERROR) != 0) {
/* FIFO Overflow/Underrun Error */
SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E024, SKERR_SIRQ_E024MSG);
}
} /* SkPhyIsrGmac */
#endif /* YUKON */
#ifdef OTHER_PHY
/******************************************************************************
*
* SkPhyIsrLone() - PHY interrupt service routine
*
* Description: handles all interrupts from LONE PHY
*
* Returns: N/A
*/
static void SkPhyIsrLone(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Port, /* Port Index (MAC_1 + n) */
SK_U16 IStatus) /* Interrupt Status */
{
SK_EVPARA Para;
if (IStatus & (PHY_L_IS_DUP | PHY_L_IS_ISOL)) {
SkHWLinkDown(pAC, IoC, Port);
Para.Para32[0] = (SK_U32)Port;
/* Signal to RLMT */
SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
}
} /* SkPhyIsrLone */
#endif /* OTHER_PHY */
/* End of File */
#endif
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