From d04075478d378d9e15f3e1abfd14b0bd124077d4 Mon Sep 17 00:00:00 2001 From: Kevin Date: Sat, 15 Nov 2014 11:48:36 +0800 Subject: init commit via android 4.4 uboot --- drivers/sk98lin/skgesirq.c | 2417 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2417 insertions(+) create mode 100755 drivers/sk98lin/skgesirq.c (limited to 'drivers/sk98lin/skgesirq.c') diff --git a/drivers/sk98lin/skgesirq.c b/drivers/sk98lin/skgesirq.c new file mode 100755 index 0000000..e5a4f7e --- /dev/null +++ b/drivers/sk98lin/skgesirq.c @@ -0,0 +1,2417 @@ +/****************************************************************************** + * + * Name: skgesirq.c + * Project: GEnesis, PCI Gigabit Ethernet Adapter + * Version: $Revision: 1.83 $ + * Date: $Date: 2003/02/05 15:10:59 $ + * Purpose: Special IRQ module + * + ******************************************************************************/ + +/****************************************************************************** + * + * (C)Copyright 1998-2003 SysKonnect GmbH. + * + * 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. + * + ******************************************************************************/ + +/****************************************************************************** + * + * History: + * + * $Log: skgesirq.c,v $ + * Revision 1.83 2003/02/05 15:10:59 rschmidt + * Fixed setting of PLinkSpeedUsed in SkHWLinkUp() when + * auto-negotiation is disabled. + * Editorial changes. + * + * Revision 1.82 2003/01/29 13:34:33 rschmidt + * Added some typecasts to avoid compiler warnings. + * + * Revision 1.81 2002/12/05 10:49:51 rschmidt + * Fixed missing Link Down Event for fiber (Bug Id #10768) + * Added reading of cable length when link is up + * Removed testing of unused error bits in PHY ISR + * Editorial changes. + * + * Revision 1.80 2002/11/12 17:15:21 rschmidt + * Replaced SkPnmiGetVar() by ...MacStatistic() in SkMacParity(). + * Editorial changes. + * + * Revision 1.79 2002/10/14 15:14:51 rschmidt + * Changed clearing of IS_M1_PAR_ERR (MAC 1 Parity Error) in + * SkMacParity() depending on GIChipRev (HW-Bug #8). + * Added error messages for GPHY Auto-Negotiation Error and + * FIFO Overflow/Underrun in SkPhyIsrGmac(). + * Editorial changes. + * + * Revision 1.78 2002/10/10 15:54:29 mkarl + * changes for PLinkSpeedUsed + * + * Revision 1.77 2002/09/12 08:58:51 rwahl + * Retrieve counters needed for XMAC errata workarounds directly because + * PNMI returns corrected counter values (e.g. #10620). + * + * Revision 1.76 2002/08/16 15:21:54 rschmidt + * Replaced all if(GIChipId == CHIP_ID_GENESIS) with new entry GIGenesis. + * Replaced wrong 1st para pAC with IoC in SK_IN/OUT macros. + * Editorial changes. + * + * Revision 1.75 2002/08/12 13:50:47 rschmidt + * Changed clearing of IS_M1_PAR_ERR (MAC 1 Parity Error) in + * SkMacParity() by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE (HW-Bug #8). + * Added clearing of IS_IRQ_TIST_OV and IS_IRQ_SENSOR in SkGeHwErr(). + * Corrected handling of Link Up and Auto-Negotiation Over for GPHY. + * in SkGePortCheckUpGmac(). + * Editorial changes. + * + * Revision 1.74 2002/08/08 16:17:04 rschmidt + * Added PhyType check for SK_HWEV_SET_ROLE event (copper only) + * Changed Link Up check reading PHY Specific Status (YUKON) + * Editorial changes + * + * Revision 1.73 2002/07/15 18:36:53 rwahl + * Editorial changes. + * + * Revision 1.72 2002/07/15 15:46:26 rschmidt + * Added new event: SK_HWEV_SET_SPEED + * Editorial changes + * + * Revision 1.71 2002/06/10 09:34:19 rschmidt + * Editorial changes + * + * Revision 1.70 2002/06/05 08:29:18 rschmidt + * SkXmRxTxEnable() replaced by SkMacRxTxEnable(). + * Editorial changes. + * + * Revision 1.69 2002/04/25 13:03:49 rschmidt + * Changes for handling YUKON. + * Use of #ifdef OTHER_PHY to eliminate code for unused Phy types. + * Replaced all XMAC-access macros by functions: SkMacRxTxDisable(), + * SkMacIrqDisable(). + * Added handling for GMAC FIFO in SkMacParity(). + * Replaced all SkXm...() functions with SkMac...() to handle also + * YUKON's GMAC. + * Macros for XMAC PHY access PHY_READ(), PHY_WRITE() replaced + * by functions SkXmPhyRead(), SkXmPhyWrite(). + * Disabling all PHY interrupts moved to SkMacIrqDisable(). + * Added handling for GPHY IRQ in SkGeSirqIsr(). + * Removed status parameter from MAC IRQ handler SkMacIrq(). + * Added SkGePortCheckUpGmac(), SkPhyIsrGmac() for GMAC. + * Editorial changes + * + * Revision 1.68 2002/02/26 15:24:53 rwahl + * Fix: no link with manual configuration (#10673). The previous fix for + * #10639 was removed. So for RLMT mode = CLS the RLMT may switch to + * misconfigured port. It should not occur for the other RLMT modes. + * + * Revision 1.67 2001/11/20 09:19:58 rwahl + * Reworked bugfix #10639 (no dependency to RLMT mode). + * + * Revision 1.66 2001/10/26 07:52:53 afischer + * Port switching bug in `check local link` mode + * + * Revision 1.65 2001/02/23 13:41:51 gklug + * fix: PHYS2INST should be used correctly for Dual Net operation + * chg: do no longer work with older PNMI + * + * Revision 1.64 2001/02/15 11:27:04 rassmann + * Working with RLMT v1 if SK_MAX_NETS undefined. + * + * Revision 1.63 2001/02/06 10:44:23 mkunz + * - NetIndex added to interface functions of pnmi V4 with dual net support + * + * Revision 1.62 2001/01/31 15:31:41 gklug + * fix: problem with autosensing an SR8800 switch + * + * Revision 1.61 2000/11/09 11:30:09 rassmann + * WA: Waiting after releasing reset until BCom chip is accessible. + * + * Revision 1.60 2000/10/18 12:37:48 cgoos + * Reinserted the comment for version 1.56. + * + * Revision 1.59 2000/10/18 12:22:20 cgoos + * Added workaround for half duplex hangup. + * + * Revision 1.58 2000/09/28 13:06:04 gklug + * fix: BCom may NOT be touched if XMAC is in RESET state + * + * Revision 1.57 2000/09/08 12:38:39 cgoos + * Added forgotten variable declaration. + * + * Revision 1.56 2000/09/08 08:12:13 cgoos + * Changed handling of parity errors in SkGeHwErr (correct reset of error). + * + * Revision 1.55 2000/06/19 08:36:25 cgoos + * Changed comment. + * + * Revision 1.54 2000/05/22 08:45:57 malthoff + * Fix: #10523 is valid for all BCom PHYs. + * + * Revision 1.53 2000/05/19 10:20:30 cgoos + * Removed Solaris debug output code. + * + * Revision 1.52 2000/05/19 10:19:37 cgoos + * Added PHY state check in HWLinkDown. + * Move PHY interrupt code to IS_EXT_REG case in SkGeSirqIsr. + * + * Revision 1.51 2000/05/18 05:56:20 cgoos + * Fixed typo. + * + * Revision 1.50 2000/05/17 12:49:49 malthoff + * Fixes BCom link bugs (#10523). + * + * Revision 1.49 1999/12/17 11:02:50 gklug + * fix: read PHY_STAT of Broadcom chip more often to assure good status + * + * Revision 1.48 1999/12/06 10:01:17 cgoos + * Added SET function for Role. + * + * Revision 1.47 1999/11/22 13:34:24 cgoos + * Changed license header to GPL. + * + * Revision 1.46 1999/09/16 10:30:07 cgoos + * Removed debugging output statement from Linux. + * + * Revision 1.45 1999/09/16 07:32:55 cgoos + * Fixed dual-port copperfield bug (PHY_READ from resetted port). + * Removed some unused variables. + * + * Revision 1.44 1999/08/03 15:25:04 cgoos + * Removed workaround for disabled interrupts in half duplex mode. + * + * Revision 1.43 1999/08/03 14:27:58 cgoos + * Removed SENSE mode code from SkGePortCheckUpBcom. + * + * Revision 1.42 1999/07/26 09:16:54 cgoos + * Added some typecasts to avoid compiler warnings. + * + * Revision 1.41 1999/05/19 07:28:59 cgoos + * Changes for 1000Base-T. + * + * Revision 1.40 1999/04/08 13:59:39 gklug + * fix: problem with 3Com switches endless RESTARTs + * + * Revision 1.39 1999/03/08 10:10:52 gklug + * fix: AutoSensing did switch to next mode even if LiPa indicated offline + * + * Revision 1.38 1999/03/08 09:49:03 gklug + * fix: Bug using pAC instead of IoC, causing AIX problems + * fix: change compare for Linux compiler bug workaround + * + * Revision 1.37 1999/01/28 14:51:33 gklug + * fix: monitor for autosensing and extra RESETS the RX on wire counters + * + * Revision 1.36 1999/01/22 09:19:55 gklug + * fix: Init DupMode and InitPauseMd are now called in RxTxEnable + * + * Revision 1.35 1998/12/11 15:22:59 gklug + * chg: autosensing: check for receive if manual mode was guessed + * chg: simplified workaround for XMAC errata + * chg: wait additional 100 ms before link goes up. + * chg: autoneg timeout to 600 ms + * chg: restart autoneg even if configured to autonegotiation + * + * Revision 1.34 1998/12/10 10:33:14 gklug + * add: more debug messages + * fix: do a new InitPhy if link went down (AutoSensing problem) + * chg: Check for zero shorts if link is NOT up + * chg: reset Port if link goes down + * chg: wait additional 100 ms when link comes up to check shorts + * fix: dummy read extended autoneg status to prevent link going down immediately + * + * Revision 1.33 1998/12/07 12:18:29 gklug + * add: refinement of autosense mode: take into account the autoneg cap of LiPa + * + * Revision 1.32 1998/12/07 07:11:21 gklug + * fix: compiler warning + * + * Revision 1.31 1998/12/02 09:29:05 gklug + * fix: WA XMAC Errata: FCSCt check was not correct. + * fix: WA XMAC Errata: Prec Counter were NOT updated in case of short checks. + * fix: Clear Stat : now clears the Prev counters of all known Ports + * + * Revision 1.30 1998/12/01 10:54:15 gklug + * dd: workaround for XMAC errata changed. Check RX count and CRC err Count, too. + * + * Revision 1.29 1998/12/01 10:01:53 gklug + * fix: if MAC IRQ occurs during port down, this will be handled correctly + * + * Revision 1.28 1998/11/26 16:22:11 gklug + * fix: bug in autosense if manual modes are used + * + * Revision 1.27 1998/11/26 15:50:06 gklug + * fix: PNMI needs to set PLinkModeConf + * + * Revision 1.26 1998/11/26 14:51:58 gklug + * add: AutoSensing functionalty + * + * Revision 1.25 1998/11/26 07:34:37 gklug + * fix: Init PrevShorts when restarting port due to Link connection + * + * Revision 1.24 1998/11/25 10:57:32 gklug + * fix: remove unreferenced local vars + * + * Revision 1.23 1998/11/25 08:26:40 gklug + * fix: don't do a RESET on a starting or stopping port + * + * Revision 1.22 1998/11/24 13:29:44 gklug + * add: Workaround for MAC parity errata + * + * Revision 1.21 1998/11/18 15:31:06 gklug + * fix: lint bugs + * + * Revision 1.20 1998/11/18 12:58:54 gklug + * fix: use PNMI query instead of hardware access + * + * Revision 1.19 1998/11/18 12:54:55 gklug + * chg: add new workaround for XMAC Errata + * add: short event counter monitoring on active link too + * + * Revision 1.18 1998/11/13 14:27:41 malthoff + * Bug Fix: Packet Arbiter Timeout was not cleared correctly + * for timeout on TX1 and TX2. + * + * Revision 1.17 1998/11/04 07:01:59 cgoos + * Moved HW link poll sequence. + * Added call to SkXmRxTxEnable. + * + * Revision 1.16 1998/11/03 13:46:03 gklug + * add: functionality of SET_LMODE and SET_FLOW_MODE + * fix: send RLMT LinkDown event when Port stop is given with LinkUp + * + * Revision 1.15 1998/11/03 12:56:47 gklug + * fix: Needs more events + * + * Revision 1.14 1998/10/30 07:36:35 gklug + * rmv: unnecessary code + * + * Revision 1.13 1998/10/29 15:21:57 gklug + * add: Poll link feature for activating HW link + * fix: Deactivate HWLink when Port STOP is given + * + * Revision 1.12 1998/10/28 07:38:57 cgoos + * Checking link status at begin of SkHWLinkUp. + * + * Revision 1.11 1998/10/22 09:46:50 gklug + * fix SysKonnectFileId typo + * + * Revision 1.10 1998/10/14 13:57:47 gklug + * add: Port start/stop event + * + * Revision 1.9 1998/10/14 05:48:29 cgoos + * Added definition for Para. + * + * Revision 1.8 1998/10/14 05:40:09 gklug + * add: Hardware Linkup signal used + * + * Revision 1.7 1998/10/09 06:50:20 malthoff + * Remove ID_sccs by SysKonnectFileId. + * + * Revision 1.6 1998/10/08 09:11:49 gklug + * add: clear IRQ commands + * + * Revision 1.5 1998/10/02 14:27:35 cgoos + * Fixed some typos and wrong event names. + * + * Revision 1.4 1998/10/02 06:24:17 gklug + * add: HW error function + * fix: OUT macros + * + * Revision 1.3 1998/10/01 07:03:00 gklug + * add: ISR for the usual interrupt source register + * + * Revision 1.2 1998/09/03 13:50:33 gklug + * add: function prototypes + * + * Revision 1.1 1998/08/27 11:50:21 gklug + * initial revision + * + * + * + ******************************************************************************/ + +#include + +#ifdef CONFIG_SK98 + +/* + * 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. + * + */ + +static const char SysKonnectFileId[] = + "$Id: skgesirq.c,v 1.83 2003/02/05 15:10:59 rschmidt Exp $" ; + +#include "h/skdrv1st.h" /* Driver Specific Definitions */ +#include "h/skgepnmi.h" /* PNMI Definitions */ +#include "h/skrlmt.h" /* RLMT Definitions */ +#include "h/skdrv2nd.h" /* Adapter Control and Driver specific Def. */ + +/* local function prototypes */ +static int SkGePortCheckUpXmac(SK_AC*, SK_IOC, int); +static int SkGePortCheckUpBcom(SK_AC*, SK_IOC, int); +static int SkGePortCheckUpGmac(SK_AC*, SK_IOC, int); +static void SkPhyIsrBcom(SK_AC*, SK_IOC, int, SK_U16); +static void SkPhyIsrGmac(SK_AC*, SK_IOC, int, SK_U16); +#ifdef OTHER_PHY +static int SkGePortCheckUpLone(SK_AC*, SK_IOC, int); +static int SkGePortCheckUpNat(SK_AC*, SK_IOC, int); +static void SkPhyIsrLone(SK_AC*, SK_IOC, int, SK_U16); +#endif /* OTHER_PHY */ + +/* + * 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 +} ; + +#ifdef __C2MAN__ +/* + * Special IRQ function + * + * General Description: + * + */ +intro() +{} +#endif + +/* Define return codes of SkGePortCheckUp and CheckShort */ +#define SK_HW_PS_NONE 0 /* No action needed */ +#define SK_HW_PS_RESTART 1 /* Restart needed */ +#define SK_HW_PS_LINK 2 /* Link Up actions needed */ + +/****************************************************************************** + * + * 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_LMODE_AUTOFULL; + + return; +} /* SkHWInitDefSense */ + + +/****************************************************************************** + * + * SkHWSenseGetNext() - Get Next Autosensing Mode + * + * Description: gets the appropriate next mode + * + * Note: + * + */ +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_LMODE_AUTOSENSE) { + /* Leave all as configured */ + return(pPrt->PLinkModeConf); + } + + if (pPrt->PLinkMode == SK_LMODE_AUTOFULL) { + /* Return next mode AUTOBOTH */ + return(SK_LMODE_AUTOBOTH); + } + + /* Return default autofull */ + return(SK_LMODE_AUTOFULL); +} /* SkHWSenseGetNext */ + + +/****************************************************************************** + * + * SkHWSenseSetNext() - Autosensing Set next mode + * + * Description: sets the appropriate next mode + * + * Returns: N/A + */ +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_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 */ + + +/****************************************************************************** + * + * 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) { + 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_LMODE_STAT_UNKNOWN; + pPrt->PFlowCtrlStatus = SK_FLOW_STAT_NONE; + pPrt->PLinkSpeedUsed = 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 + */ +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_LMODE_STAT_UNKNOWN; + + if (pPrt->PLinkMode != SK_LMODE_AUTOHALF && + pPrt->PLinkMode != SK_LMODE_AUTOFULL && + pPrt->PLinkMode != 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_LSPEED_STAT_1000MBPS; + break; + case SK_LSPEED_100MBPS: + pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_100MBPS; + break; + case SK_LSPEED_10MBPS: + pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_10MBPS; + break; + } + + /* Set Link Mode Status */ + if (pPrt->PLinkMode == SK_LMODE_FULL) { + pPrt->PLinkModeStatus = SK_LMODE_STAT_FULL; + } + else { + pPrt->PLinkModeStatus = SK_LMODE_STAT_HALF; + } + + /* No flow control without auto-negotiation */ + pPrt->PFlowCtrlStatus = SK_FLOW_STAT_NONE; + + /* enable Rx/Tx */ + 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; /* TxMax Counter */ + + pPrt = &pAC->GIni.GP[Port]; + + /* Clear IRQ Tx Parity Error */ + if (pAC->GIni.GIGenesis) { + SK_OUT16(IoC, MR_ADDR(Port, TX_MFF_CTRL1), MFF_CLR_PERR); + } + else { + /* 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.GIChipRev == 0) ? GMF_CLI_TX_FC : GMF_CLI_TX_PE)); + } + + 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 */ + if (pAC->GIni.GIGenesis) { + /* Snap statistic counters */ + (void)SkXmUpdateStats(pAC, IoC, Port); + + (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXF_MAX_SZ, &TxMax); + } + else { + (void)SkGmMacStatistic(pAC, IoC, Port, GM_TXF_1518B, &TxMax); + } + + 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), 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); + } + + 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); + } + } + else { /* YUKON */ + /* This is necessary only for Rx timing measurements */ + if ((HwStatus & IS_IRQ_TIST_OV) != 0) { + /* Clear Time Stamp Timer IRQ */ + SK_OUT8(IoC, GMAC_TI_ST_CTRL, (SK_U8)GMT_ST_CLR_IRQ); + } + + if ((HwStatus & IS_IRQ_SENSOR) != 0) { + /* Clear I2C IRQ */ + SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ); + } + } + + 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 */ + unsigned Len; + SK_U64 Octets; + SK_U16 PhyInt; + SK_U16 PhyIMsk; + int i; + + if ((Istatus & IS_HW_ERR) != 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); + + /* + * 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; + + Len = sizeof(SK_U64); + SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets, + &Len, (SK_U32) SK_PNMI_PORT_PHYS2INST(pAC, 0), + pAC->Rlmt.Port[0].Net->NetNumber); + + pPrt->LastOctets = Octets; + + Para.Para32[0] = 0; + SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME, + SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para); + } + } + + 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); + + /* workaround: see above */ + if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF || + pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) && + !pPrt->HalfDupTimerActive) { + pPrt->HalfDupTimerActive = SK_TRUE; + + Len = sizeof(SK_U64); + SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets, + &Len, (SK_U32) SK_PNMI_PORT_PHYS2INST(pAC, 1), + pAC->Rlmt.Port[1].Net->NetNumber); + + pPrt->LastOctets = Octets; + + Para.Para32[0] = 1; + SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME, + SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para); + } + } + + /* 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; + } + + switch (pPrt->PhyType) { + + case SK_PHY_XMAC: + break; + + case SK_PHY_BCOM: + SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_STAT, &PhyInt); + SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_MASK, &PhyIMsk); + + if ((PhyInt & ~PhyIMsk) != 0) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, + ("Port %d Bcom Int: 0x%04X Mask: 0x%04X\n", + i, PhyInt, PhyIMsk)); + SkPhyIsrBcom(pAC, IoC, i, PhyInt); + } + break; + + case SK_PHY_MARV_COPPER: + case SK_PHY_MARV_FIBER: + SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_STAT, &PhyInt); + SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_MASK, &PhyIMsk); + + if ((PhyInt & PhyIMsk) != 0) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, + ("Port %d Marv Int: 0x%04X Mask: 0x%04X\n", + i, PhyInt, PhyIMsk)); + SkPhyIsrGmac(pAC, IoC, i, PhyInt); + } + break; + +#ifdef OTHER_PHY + case SK_PHY_LONE: + SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_STAT, &PhyInt); + SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_ENAB, &PhyIMsk); + + if ((PhyInt & PhyIMsk) != 0) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ, + ("Port %d Lone Int: %x Mask: %x\n", + i, PhyInt, PhyIMsk)); + SkPhyIsrLone(pAC, IoC, i, PhyInt); + } + break; + case SK_PHY_NAT: + /* todo: National */ + break; +#endif /* OTHER_PHY */ + } + } + } + + /* I2C Ready interrupt */ + if ((Istatus & IS_I2C_READY) != 0) { + SkI2cIsr(pAC, IoC); + } + + 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) { + SkHwtIsr(pAC, IoC); + } +} /* SkGeSirqIsr */ + + +/****************************************************************************** + * + * 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 counter (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_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 */ + + +/****************************************************************************** + * + * 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 */ +{ + switch (pAC->GIni.GP[Port].PhyType) { + case SK_PHY_XMAC: + return(SkGePortCheckUpXmac(pAC, IoC, Port)); + case SK_PHY_BCOM: + return(SkGePortCheckUpBcom(pAC, IoC, Port)); + case SK_PHY_MARV_COPPER: + case SK_PHY_MARV_FIBER: + return(SkGePortCheckUpGmac(pAC, IoC, Port)); +#ifdef OTHER_PHY + case SK_PHY_LONE: + return(SkGePortCheckUpLone(pAC, IoC, Port)); + case SK_PHY_NAT: + return(SkGePortCheckUpNat(pAC, IoC, Port)); +#endif /* OTHER_PHY */ + } + return(SK_HW_PS_NONE); +} /* SkGePortCheckUp */ + + +/****************************************************************************** + * + * 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_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_BOOL AutoNeg; /* Is Auto-negotiation used ? */ + 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->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) { + AutoNeg = SK_FALSE; + } + else { + AutoNeg = SK_TRUE; + } + + 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)); + } +#endif /* DEBUG */ + return(SK_HW_PS_NONE); + } + + if (AutoNeg) { + 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_CTRL, + ("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); + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("AutoNeg done Port %d\n", Port)); + return(SK_HW_PS_LINK); + } + + /* AutoNeg not done, but HW link is up. Check for timeouts */ + pPrt->PAutoNegTimeOut++; + 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_LMODE_AUTOSENSE && + pPrt->PLipaAutoNeg != 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_LMODE_AUTOSENSE && + pPrt->PLipaAutoNeg == 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_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_LIPA_AUTO) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("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 not received + * a 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, /* IO Context */ +int Port) /* Which port should be checked */ +{ + 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 */ + SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */ + + pPrt = &pAC->GIni.GP[Port]; + + /* Check for No HCD Link events (#10523) */ + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &Isrc); + +#ifdef xDEBUG + if ((Isrc & ~(PHY_B_IS_HCT | PHY_B_IS_LCT) == + (PHY_B_IS_SCR_S_ER | PHY_B_IS_RRS_CHANGE | PHY_B_IS_LRS_CHANGE)) { + + SK_U32 Stat1, Stat2, Stat3; + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1); + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "CheckUp1 - Stat: %x, Mask: %x", + (void *)Isrc, + (void *)Stat1); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &Stat2); + Stat1 = Stat1 << 16 | Stat2; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3); + Stat2 = Stat2 << 16 | Stat3; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "Ctrl/Stat: %x, AN Adv/LP: %x", + (void *)Stat1, + (void *)Stat2); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2); + Stat1 = Stat1 << 16 | Stat2; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &Stat3); + Stat2 = Stat2 << 16 | Stat3; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x", + (void *)Stat1, + (void *)Stat2); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2); + Stat1 = Stat1 << 16 | Stat2; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3); + Stat2 = Stat2 << 16 | Stat3; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x", + (void *)Stat1, + (void *)Stat2); + } +#endif /* DEBUG */ + + 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)); +#ifdef xDEBUG + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "No HCD link event, port %d.", + (void *)Port, + (void *)NULL); +#endif /* DEBUG */ + } + + /* 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); + } + +#ifdef xDEBUG + { + SK_U32 Stat1, Stat2, Stat3; + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1); + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "CheckUp1a - Stat: %x, Mask: %x", + (void *)Isrc, + (void *)Stat1); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat); + Stat1 = Stat1 << 16 | PhyStat; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3); + Stat2 = Stat2 << 16 | Stat3; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "Ctrl/Stat: %x, AN Adv/LP: %x", + (void *)Stat1, + (void *)Stat2); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2); + Stat1 = Stat1 << 16 | Stat2; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb); + Stat2 = Stat2 << 16 | ResAb; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x", + (void *)Stat1, + (void *)Stat2); + + Stat1 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1); + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2); + Stat1 = Stat1 << 16 | Stat2; + Stat2 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2); + Stat3 = 0; + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3); + Stat2 = Stat2 << 16 | Stat3; + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x", + (void *)Stat1, + (void *)Stat2); + } +#endif /* DEBUG */ + + /* Now wait for each port's link */ + if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) { + AutoNeg = SK_FALSE; + } + else { + AutoNeg = SK_TRUE; + } + + /* + * 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, + ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, 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_CTRL, + ("Master/Slave Fault port %d\n", Port)); + 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, + ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, PhyStat)); + + if (AutoNeg) { + 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_CTRL, + ("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n", + Port, LpAb, ExtStat)); +#endif /* DEBUG */ + return(SK_HW_PS_RESTART); + } + else { +#ifdef xDEBUG + /* Dummy read ISR to prevent extra link downs/ups */ + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat); + + if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) { + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "CheckUp2 - Stat: %x", + (void *)ExtStat, + (void *)NULL); + } +#endif /* DEBUG */ + + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("AutoNeg done Port %d\n", Port)); + return(SK_HW_PS_LINK); + } + } + } + else { /* !AutoNeg */ + /* Link is up and we don't need more. */ +#ifdef DEBUG + if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("ERROR: Lipa auto detected on port %d\n", Port)); + } +#endif /* DEBUG */ + +#ifdef xDEBUG + /* Dummy read ISR to prevent extra link downs/ups */ + SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat); + + if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) { + CMSMPrintString( + pAC->pConfigTable, + MSG_TYPE_RUNTIME_INFO, + "CheckUp3 - Stat: %x", + (void *)ExtStat, + (void *)NULL); + } +#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 */ + + +/****************************************************************************** + * + * 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, /* IO Context */ +int Port) /* Which port should be checked */ +{ + SK_GEPORT *pPrt; /* GIni Port struct pointer */ + int Done; + SK_U16 Isrc; /* Interrupt source */ + SK_U16 PhyStat; /* Phy Status */ + SK_U16 PhySpecStat;/* Phy Specific Status */ + SK_U16 ResAb; /* Master/Slave resolution */ + SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */ + + pPrt = &pAC->GIni.GP[Port]; + + /* Read PHY Interrupt Status */ + SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &Isrc); + + if ((Isrc & PHY_M_IS_AN_COMPL) != 0) { + /* TBD */ + } + + if ((Isrc & PHY_M_IS_DOWNSH_DET) != 0) { + /* TBD */ + } + + if (pPrt->PHWLinkUp) { + return(SK_HW_PS_NONE); + } + + /* Now wait for each port's link */ + if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) { + AutoNeg = SK_FALSE; + } + else { + AutoNeg = SK_TRUE; + } + + /* Read PHY Status */ + SkGmPhyRead(pAC, IoC, Port, PHY_MARV_STAT, &PhyStat); + + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, PhyStat)); + + SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat); + + 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_CTRL, + ("Master/Slave Fault port %d\n", Port)); + 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, + ("AutoNeg: %d, PhySpecStat: 0x%04x\n", AutoNeg, PhySpecStat)); + + if ((PhySpecStat & PHY_M_PS_LINK_UP) == 0) { + return(SK_HW_PS_NONE); + } + + pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ? + SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE; + + pPrt->PCableLen = (SK_U8)((PhySpecStat & PHY_M_PS_CABLE_MSK) >> 7); + + 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) { + return(SK_HW_PS_RESTART); + } + + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("AutoNeg done Port %d\n", Port)); + return(SK_HW_PS_LINK); + } + } + else { /* !AutoNeg */ + /* Link is up and we don't need more */ +#ifdef DEBUG + if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("ERROR: Lipa auto detected on port %d\n", Port)); + } +#endif /* DEBUG */ + + 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 */ + + +#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, /* IO Context */ +int Port) /* Which port should be checked */ +{ + 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_BOOL AutoNeg; /* Is Auto-negotiation used ? */ + 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; + + /* Now wait for each ports link */ + if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) { + AutoNeg = SK_FALSE; + } + else { + AutoNeg = SK_TRUE; + } + + /* + * 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) { + 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_CTRL, + ("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); + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("AutoNeg done Port %d\n", Port)); + return(SK_HW_PS_LINK); + } + } + + /* AutoNeg not done, but HW link is up. Check for timeouts */ + pPrt->PAutoNegTimeOut++; + 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_LMODE_AUTOSENSE && + pPrt->PLipaAutoNeg != 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_LIPA_AUTO) { + SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL, + ("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, /* IO Context */ +int Port) /* Which port should be checked */ +{ + /* 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, /* Io Context */ +SK_U32 Event, /* Module specific Event */ +SK_EVPARA Para) /* Event specific Parameter */ +{ + SK_U64 Octets; + SK_GEPORT *pPrt; /* GIni Port struct pointer */ + SK_U32 Port; + SK_U32 Time; + unsigned Len; + int PortStat; + SK_U8 Val8; + + Port = Para.Para32[0]; + pPrt = &pAC->GIni.GP[Port]; + + switch (Event) { + case SK_HWEV_WATIM: + /* 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) { + Time = SK_WA_ACT_TIME; + } + else { + Time = SK_WA_INA_TIME; + } + + /* Todo: still needed for non-XMAC PHYs??? */ + /* Start workaround Errata #2 timer */ + SkTimerStart(pAC, IoC, &pPrt->PWaTimer, Time, + SKGE_HWAC, SK_HWEV_WATIM, Para); + break; + + case SK_HWEV_PORT_START: + if (pPrt->PHWLinkUp) { + /* + * Signal directly to RLMT to ensure correct + * sequence of SWITCH and RESET event. + */ + SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para); + } + + 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: + if (pPrt->PHWLinkUp) { + /* + * Signal directly to RLMT to ensure correct + * sequence of SWITCH and RESET event. + */ + SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para); + } + + /* Stop Workaround Timer */ + SkTimerStop(pAC, IoC, &pPrt->PWaTimer); + + SkHWLinkDown(pAC, IoC, Port); + break; + + 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 < (SK_U32)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 link 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; + + case SK_HWEV_HALFDUP_CHK: + /* + * 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) { + + Len = sizeof(SK_U64); + SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets, + &Len, (SK_U32)SK_PNMI_PORT_PHYS2INST(pAC, Port), + pAC->Rlmt.Port[Port].Net->NetNumber); + + if (pPrt->LastOctets == Octets) { + /* Tx hanging, a FIFO flush restarts it */ + SkMacFlushTxFifo(pAC, IoC, Port); + } + } + break; + + default: + SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_SIRQ_E001, SKERR_SIRQ_E001MSG); + break; + } + + return(0); +} /* SkGeSirqEvent */ + + +/****************************************************************************** + * + * 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, /* Io Context */ +int Port, /* Port Num = PHY Num */ +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_SW | SK_ERRCL_INIT, SKERR_SIRQ_E022, + SKERR_SIRQ_E022MSG); + } + + if ((IStatus & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) != 0) { + Para.Para32[0] = (SK_U32)Port; + + SkHWLinkDown(pAC, IoC, 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 */ + + +/****************************************************************************** + * + * 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, /* Io Context */ +int Port, /* Port Num = PHY Num */ +SK_U16 IStatus) /* Interrupt Status */ +{ + SK_GEPORT *pPrt; /* GIni Port struct pointer */ + SK_EVPARA Para; + + pPrt = &pAC->GIni.GP[Port]; + + if ((IStatus & (PHY_M_IS_AN_PR | PHY_M_IS_LST_CHANGE)) != 0) { + Para.Para32[0] = (SK_U32)Port; + + SkHWLinkDown(pAC, IoC, Port); + + /* Signal to RLMT */ + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); + } + + if ((IStatus & PHY_M_IS_AN_ERROR) != 0) { + /* Auto-Negotiation Error */ + SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E023, SKERR_SIRQ_E023MSG); + } + + if ((IStatus & PHY_M_IS_LSP_CHANGE) != 0) { + /* TBD */ + } + + 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 */ + + +#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, /* Io Context */ +int Port, /* Port Num = PHY Num */ +SK_U16 IStatus) /* Interrupt Status */ +{ + SK_EVPARA Para; + + if (IStatus & (PHY_L_IS_DUP | PHY_L_IS_ISOL)) { + SkHWLinkDown(pAC, IoC, Port); + + /* Signal to RLMT */ + Para.Para32[0] = (SK_U32)Port; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para); + } + +} /* SkPhyIsrLone */ +#endif /* OTHER_PHY */ + +#endif /* CONFIG_SK98 */ + +/* End of File */ -- cgit