* Context: *	runtime, pageable? * * Returns: *	SK_BOOL */RLMT_STATIC SK_BOOL	SkRlmtSelectGoingUp(SK_AC	*pAC,			/* Adapter Context */SK_IOC	IoC,			/* I/O Context */SK_U32	Active,			/* Active port */SK_U32	PrefPort,		/* Preferred port */SK_U32	*pSelect,		/* New active port */SK_BOOL	AutoNegDone)	/* Successfully auto-negotiated? */{	SK_U64		GuTimeStamp;	SK_U32		i;	SK_BOOL		PortFound;	GuTimeStamp = 0;	PortFound = SK_FALSE;	/* Select port that is PortGoingUp for the longest time. */	for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {		if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&			pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {			GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;			*pSelect = i;			PortFound = SK_TRUE;			break;		}	}	if (!PortFound) {		return (SK_FALSE);	}	for (i = *pSelect + 1; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {		if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&			pAC->Rlmt.Port[i].GuTimeStamp < GuTimeStamp &&			pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {			GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;			*pSelect = i;		}	}	SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,		("SK_RLMT_SELECT_GOINGUP found Port %d going up.\n", *pSelect))	return (SK_TRUE);}	/* SkRlmtSelectGoingUp *//****************************************************************************** * *	SkRlmtSelectDown - select new active port, criteria 7, 8 (CLP) * * Description: *	This routine selects a port that is down. * * Context: *	runtime, pageable? * * Returns: *	SK_BOOL */RLMT_STATIC SK_BOOL	SkRlmtSelectDown(SK_AC	*pAC,			/* Adapter Context */SK_IOC	IoC,			/* I/O Context */SK_U32	Active,			/* Active port */SK_U32	PrefPort,		/* Preferred port */SK_U32	*pSelect,		/* New active port */SK_BOOL	AutoNegDone)	/* Successfully auto-negotiated? */{	SK_U32		i;	SK_BOOL		PortFound;	PortFound = SK_FALSE;	/* Select first port that is PortDown. */	for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {		if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_DOWN &&			pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {			*pSelect = i;			if (pAC->Rlmt.Port[Active].PortState == SK_RLMT_PS_DOWN &&				pAC->GIni.GP[Active].PAutoNegFail != AutoNegDone) {				*pSelect = Active;			}			if (pAC->Rlmt.Port[PrefPort].PortState == SK_RLMT_PS_DOWN &&				pAC->GIni.GP[PrefPort].PAutoNegFail != AutoNegDone) {				*pSelect = PrefPort;			}			PortFound = SK_TRUE;			SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,				("SK_RLMT_SELECT_DOWN found Port %d down.\n", *pSelect))			break;		}	}	return (PortFound);}	/* SkRlmtSelectDown *//****************************************************************************** * *	SkRlmtCheckSwitch - select new active port and switch to it * * Description: *	This routine decides which port should be the active one and queues *	port switching if necessary. * * Context: *	runtime, pageable? * * Returns: *	Nothing. */RLMT_STATIC void	SkRlmtCheckSwitch(SK_AC	*pAC,	/* Adapter Context */SK_IOC	IoC,	/* I/O Context */SK_U32	NetIdx)	/* Net index */{	SK_EVPARA	Para;	SK_U32		Active;	SK_U32		PrefPort;	SK_U32		i;	SK_BOOL		PortFound;	Active = pAC->Rlmt.Net[NetIdx].ActivePort;	/* Index of active port. */	PrefPort = pAC->Rlmt.Net[NetIdx].PrefPort;	/* Index of preferred port. */	PortFound = SK_FALSE;	pAC->Rlmt.CheckSwitch = SK_FALSE;#if 0	/* RW 2001/10/18 - active port becomes always prefered one */	if (pAC->Rlmt.Net[NetIdx].Preference == 0xFFFFFFFF) { /* Automatic */		/* disable auto-fail back */		PrefPort = Active;	}#endif	if (pAC->Rlmt.Net[NetIdx].LinksUp == 0) {		/* Last link went down - shut down the net. */		pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_DOWN;		Para.Para32[0] = SK_RLMT_NET_DOWN_TEMP;		Para.Para32[1] = NetIdx;		SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_DOWN, Para);		Para.Para32[0] = pAC->Rlmt.Net[NetIdx].			Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;		Para.Para32[1] = NetIdx;		SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);		return;	}	/* pAC->Rlmt.LinksUp == 0 */	else if (pAC->Rlmt.Net[NetIdx].LinksUp == 1 &&		pAC->Rlmt.Net[NetIdx].RlmtState == SK_RLMT_RS_NET_DOWN) {		/* First link came up - get the net up. */		pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_UP;		/*		 * If pAC->Rlmt.ActivePort != Para.Para32[0],		 * the DRV switches to the port that came up.		 */		for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {			if (!pAC->Rlmt.Net[NetIdx].Port[i]->LinkDown) {				if (!pAC->Rlmt.Net[NetIdx].Port[Active]->LinkDown) {					i = Active;				}				if (!pAC->Rlmt.Net[NetIdx].Port[PrefPort]->LinkDown) {					i = PrefPort;				}				PortFound = SK_TRUE;				break;			}		}		if (PortFound) {			Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;			Para.Para32[1] = NetIdx;			SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);			pAC->Rlmt.Net[NetIdx].ActivePort = i;			Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;			Para.Para32[1] = NetIdx;			SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_UP, Para);			if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&				(Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC,				pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber,				SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].				CurrentMacAddress, &SkRlmtMcAddr)) != NULL) {				/*				 * Send announce packet to RLMT multicast address to force				 * switches to learn the new location of the logical MAC address.				 */				SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);			}		}		else {			SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E007, SKERR_RLMT_E007_MSG);		}		return;	}	/* LinksUp == 1 && RlmtState == SK_RLMT_RS_NET_DOWN */	else {	/* Cannot be reached in dual-net mode. */		Para.Para32[0] = Active;		/*		 * Preselection:		 *	If RLMT Mode != CheckLinkState		 *		select port that received a broadcast frame substantially later		 *		than all other ports		 *	else select first port that is not SuspectRx		 *	else select first port that is PortUp		 *	else select port that is PortGoingUp for the longest time		 *	else select first port that is PortDown		 *	else stop.		 *		 * For the preselected port:		 *	If ActivePort is equal in quality, select ActivePort.		 *		 *	If PrefPort is equal in quality, select PrefPort.		 *		 *	If ActivePort != SelectedPort,		 *		If old ActivePort is LinkDown,		 *			SwitchHard		 *		else		 *			SwitchSoft		 */		/* check of ChgBcPrio flag added */		if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&			(!pAC->Rlmt.Net[0].ChgBcPrio)) {			if (!PortFound) {				PortFound = SkRlmtSelectBcRx(					pAC, IoC, Active, PrefPort, &Para.Para32[1]);			}			if (!PortFound) {				PortFound = SkRlmtSelectNotSuspect(					pAC, IoC, Active, PrefPort, &Para.Para32[1]);			}		}	/* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */		/* with changed priority for last broadcast received */		if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&			(pAC->Rlmt.Net[0].ChgBcPrio)) {			if (!PortFound) {				PortFound = SkRlmtSelectNotSuspect(					pAC, IoC, Active, PrefPort, &Para.Para32[1]);			}			if (!PortFound) {				PortFound = SkRlmtSelectBcRx(					pAC, IoC, Active, PrefPort, &Para.Para32[1]);			}		}	/* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */		if (!PortFound) {			PortFound = SkRlmtSelectUp(				pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);		}		if (!PortFound) {			PortFound = SkRlmtSelectUp(				pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);		}		if (!PortFound) {			PortFound = SkRlmtSelectGoingUp(				pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);		}		if (!PortFound) {			PortFound = SkRlmtSelectGoingUp(				pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);		}		if (pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) {			if (!PortFound) {				PortFound = SkRlmtSelectDown(pAC, IoC,					Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);			}			if (!PortFound) {				PortFound = SkRlmtSelectDown(pAC, IoC,					Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);			}		}	/* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */		if (PortFound) {			if (Para.Para32[1] != Active) {				SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,					("Active: %d, Para1: %d.\n", Active, Para.Para32[1]))				pAC->Rlmt.Net[NetIdx].ActivePort = Para.Para32[1];				Para.Para32[0] = pAC->Rlmt.Net[NetIdx].					Port[Para.Para32[0]]->PortNumber;				Para.Para32[1] = pAC->Rlmt.Net[NetIdx].					Port[Para.Para32[1]]->PortNumber;				SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[1], SK_LED_ACTIVE);				if (pAC->Rlmt.Port[Active].LinkDown) {					SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_HARD, Para);				}				else {					SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_STANDBY);					SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_SOFT, Para);				}				Para.Para32[1] = NetIdx;				Para.Para32[0] =					pAC->Rlmt.Net[NetIdx].Port[Para.Para32[0]]->PortNumber;				SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);				Para.Para32[0] = pAC->Rlmt.Net[NetIdx].					Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;				SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);				if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&					(Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, Para.Para32[0],					SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].CurrentMacAddress,					&SkRlmtMcAddr)) != NULL) {					/*					 * Send announce packet to RLMT multicast address to force					 * switches to learn the new location of the logical					 * MAC address.					 */					SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);				}	/* (Para.pParaPtr = SkRlmtBuildPacket(...)) != NULL */			}	/* Para.Para32[1] != Active */		}	/* PortFound */		else {			SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E004, SKERR_RLMT_E004_MSG);		}	}	/* LinksUp > 1 || LinksUp == 1 && RlmtState != SK_RLMT_RS_NET_DOWN */	return;}	/* SkRlmtCheckSwitch *//****************************************************************************** * *	SkRlmtCheckSeg - Report if segmentation is detected * * Description: *	This routine checks if the ports see different root bridges and reports *	segmentation in such a case. * * Context: *	runtime, pageable? * * Returns: *	Nothing. */RLMT_STATIC void	SkRlmtCheckSeg(SK_AC	*pAC,	/* Adapter Context */SK_IOC	IoC,	/* I/O Context */SK_U32	NetIdx)	/* Net number */{	SK_EVPARA	Para;	SK_RLMT_NET	*pNet;	SK_U32		i, j;	SK_BOOL		Equal;	pNet = &pAC->Rlmt.Net[NetIdx];	pNet->RootIdSet = SK_FALSE;	Equal = SK_TRUE;	for (i = 0; i < pNet->NumPorts; i++) {		if (pNet->Port[i]->LinkDown || !pNet->Port[i]->RootIdSet) {			continue;		}		SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_DUMP,			("Root ID %d: %02x %02x %02x %02x %02x %02x %02x %02x.\n", i,				pNet->Port[i]->Root.Id[0], pNet->Port[i]->Root.Id[1],				pNet->Port[i]->Root.Id[2], pNet->Port[i]->Root.Id[3],				pNet->Port[i]->Root.Id[4], pNet->Port[i]->Root.Id[5],				pNet->Port[i]->Root.Id[6], pNet->Port[i]->Root.Id[7]))		if (!pNet->RootIdSet) {			pNet->Root = pNet->Port[i]->Root;			pNet->RootIdSet = SK_TRUE;			continue;		}		for (j = 0; j < 8; j ++) {			Equal &= pNet->Port[i]->Root.Id[j] == pNet->Root.Id[j];			if (!Equal) {				break;			}		}		if (!Equal) {			SK_ERR_LOG(pAC, SK_ERRCL_COMM, SKERR_RLMT_E005, SKERR_RLMT_E005_MSG);			Para.Para32[0] = NetIdx;			Para.Para32[1] = (SK_U32)-1;			SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SEGMENTATION, Para);			pNet->CheckingState &= ~SK_RLMT_RCS_REPORT_SEG;			/* 2000-03-06 RA: New. */			Para.Para32[0] = NetIdx;			Para.Para32[1] = (SK_U32)-1;			SkTimerStart(pAC, IoC, &pNet->SegTimer, SK_RLMT_SEG_TO_VAL,				SKGE_RLMT, SK_RLMT_SEG_TIM, Para);			break;		}	}	/* for (i = 0; i < pNet->NumPorts; i++) */	/* 2000-03-06 RA: Moved here. */	/* Segmentation check not running anymore. */	pNet->CheckingState &= ~SK_RLMT_RCS_SEG;}	/* SkRlmtCheckSeg *//****************************************************************************** * *	SkRlmtPortStart - initialize port variables and start port * * Description: *	This routine initializes a port's variables and issues a PORT_START *	to the HWAC module.  This handles retries if the start fails or the *	link eventually goes down. * * Context: *	runtime, pageable? * * Returns: *	Nothing */RLMT_STATIC void	SkRlmtPortStart(SK_AC	*pAC,		/* Adapter Context */SK_IOC	IoC,		/* I/O Context */SK_U32	PortNumber)	/* Port number */{	SK_EVPARA	Para;	pAC->Rlmt.Port[PortNumber].PortState = SK_RLMT_PS_LINK_DOWN;	pAC->Rlmt.Port[PortNumber].PortStarted = SK_TRUE;	pAC->Rlmt.Port[PortNumber].LinkDown = SK_TRUE;	pAC->Rlmt.Port[PortNumber].PortDown = SK_TRUE;	pAC->Rlmt.Port[PortNumbe