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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 2d5b561e2bfdee8552a99b2cf93016cce2a74895 / . / drivers / sk98lin / skgesirq.c
blob: c7c04b70ecc46ae5efe99b966a71706daa5bafde [file] [log] [blame]
/******************************************************************************
*
* 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 <config.h>
#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 */