skgesirq.c

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			"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 */

	/*
	 * 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,
		("Port %d, ResAb: 0x%04X\n", Port, ResAb));

	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 */
#endif /* GENESIS */


#ifdef YUKON
/******************************************************************************
 *
 * SkGePortCheckUpGmac() - Check if the link is up on Marvell PHY
 *
 * return:
 *	0	o.k. nothing needed
 *	1	Restart needed on this port
 *	2	Link came up
 */
static int SkGePortCheckUpGmac(
SK_AC	*pAC,		/* Adapter Context */
SK_IOC	IoC,		/* IO Context */
int		Port,		/* Which port should be checked */
SK_BOOL	AutoNeg)	/* Is Auto-negotiation used ? */
{
	SK_GEPORT	*pPrt;		/* GIni Port struct pointer */
	int			Done;
	SK_U16		PhyIsrc;	/* PHY Interrupt source */
	SK_U16		PhyStat;	/* PPY Status */
	SK_U16		PhySpecStat;/* PHY Specific Status */
	SK_U16		ResAb;		/* Master/Slave resolution */
	SK_EVPARA	Para;

	pPrt = &pAC->GIni.GP[Port];

	if (pPrt->PHWLinkUp) {
		return(SK_HW_PS_NONE);
	}

	/* Read PHY Status */
	SkGmPhyRead(pAC, IoC, Port, PHY_MARV_STAT, &PhyStat);

	SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
		   ("CheckUp Port %d, PhyStat: 0x%04X\n", Port, PhyStat));

	/* Read PHY Interrupt Status */
	SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &PhyIsrc);

	if ((PhyIsrc & PHY_M_IS_AN_COMPL) != 0) {
		SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
			("Auto-Negotiation Completed, PhyIsrc: 0x%04X\n", PhyIsrc));
	}

	if ((PhyIsrc & PHY_M_IS_LSP_CHANGE) != 0) {
		SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
			("Link Speed Changed, PhyIsrc: 0x%04X\n", PhyIsrc));
	}

	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);
	}
	
	if ((PhySpecStat & PHY_M_PS_DOWNS_STAT) != 0 ||
		(PhyIsrc & PHY_M_IS_DOWNSH_DET) != 0) {
		/* Downshift detected */
		SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E025, SKERR_SIRQ_E025MSG);
		
		Para.Para64 = Port;
		SkEventQueue(pAC, SKGE_DRV, SK_DRV_DOWNSHIFT_DET, Para);
		
		SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
			("Downshift detected, PhyIsrc: 0x%04X\n", PhyIsrc));
	}

	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 */
#endif /* YUKON */


#ifdef OTHER_PHY
/******************************************************************************
 *
 * SkGePortCheckUpLone() - Check if the link is up on Level One PHY
 *
 * return:
 *	0	o.k. nothing needed
 *	1	Restart needed on this port
 *	2	Link came up
 */
static int SkGePortCheckUpLone(
SK_AC	*pAC,		/* Adapter Context */
SK_IOC	IoC,		/* IO Context */
int		Port,		/* Which port should be checked */
SK_BOOL	AutoNeg)	/* Is Auto-negotiation used ? */
{
	SK_GEPORT	*pPrt;		/* GIni Port struct pointer */
	int			Done;
	SK_U16		Isrc;		/* Interrupt source register */
	SK_U16		LpAb;		/* Link Partner Ability */
	SK_U16		ExtStat;	/* Extended Status Register */
	SK_U16		PhyStat;	/* Phy Status Register */
	SK_U16		StatSum;
	SK_U8		NextMode;	/* Next AutoSensing Mode */

	pPrt = &pAC->GIni.GP[Port];

	if (pPrt->PHWLinkUp) {
		return(SK_HW_PS_NONE);
	}

	StatSum = pPrt->PIsave;
	pPrt->PIsave = 0;

	/*
	 * here we usually can check whether the link is in sync and
	 * auto-negotiation is done.
	 */
	SkXmPhyRead(pAC, IoC, Port, PHY_LONE_STAT, &PhyStat);
	StatSum |= PhyStat;

	SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
	
	if ((PhyStat & PHY_ST_LSYNC) == 0) {
		/* Save Auto-negotiation Done bit */
		pPrt->PIsave = (SK_U16)(StatSum & PHY_ST_AN_OVER);
#ifdef DEBUG
		if ((pPrt->PIsave & PHY_ST_AN_OVER) != 0) {
			SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
				("AutoNeg done rescheduled Port %d\n", Port));
		}
#endif /* DEBUG */
		return(SK_HW_PS_NONE);
	}

	if (AutoNeg) {
		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 */
SK_BOOL	AutoNeg)	/* Is Auto-negotiation used ? */
{
	/* todo: National */
	return(SK_HW_PS_NONE);
}	/* SkGePortCheckUpNat */
#endif /* OTHER_PHY */


/******************************************************************************
 *
 *	SkGeSirqEvent() - Event Service Routine
 *
 * Description:
 *
 * Notes:
 */
int	SkGeSirqEvent(
SK_