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path: root/drivers/net/sk98lin/skgeinit.c
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-rw-r--r--drivers/net/sk98lin/skgeinit.c2005
1 files changed, 2005 insertions, 0 deletions
diff --git a/drivers/net/sk98lin/skgeinit.c b/drivers/net/sk98lin/skgeinit.c
new file mode 100644
index 00000000000..67f1d6a5c15
--- /dev/null
+++ b/drivers/net/sk98lin/skgeinit.c
@@ -0,0 +1,2005 @@
+/******************************************************************************
+ *
+ * Name: skgeinit.c
+ * Project: Gigabit Ethernet Adapters, Common Modules
+ * Version: $Revision: 1.97 $
+ * Date: $Date: 2003/10/02 16:45:31 $
+ * Purpose: Contains functions to initialize the adapter
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (C)Copyright 1998-2002 SysKonnect.
+ * (C)Copyright 2002-2003 Marvell.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+#include "h/skdrv1st.h"
+#include "h/skdrv2nd.h"
+
+/* global variables ***********************************************************/
+
+/* local variables ************************************************************/
+
+#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
+static const char SysKonnectFileId[] =
+ "@(#) $Id: skgeinit.c,v 1.97 2003/10/02 16:45:31 rschmidt Exp $ (C) Marvell.";
+#endif
+
+struct s_QOffTab {
+ int RxQOff; /* Receive Queue Address Offset */
+ int XsQOff; /* Sync Tx Queue Address Offset */
+ int XaQOff; /* Async Tx Queue Address Offset */
+};
+static struct s_QOffTab QOffTab[] = {
+ {Q_R1, Q_XS1, Q_XA1}, {Q_R2, Q_XS2, Q_XA2}
+};
+
+struct s_Config {
+ char ScanString[8];
+ SK_U32 Value;
+};
+
+static struct s_Config OemConfig = {
+ {'O','E','M','_','C','o','n','f'},
+#ifdef SK_OEM_CONFIG
+ OEM_CONFIG_VALUE,
+#else
+ 0,
+#endif
+};
+
+/******************************************************************************
+ *
+ * SkGePollTxD() - Enable / Disable Descriptor Polling of TxD Rings
+ *
+ * Description:
+ * Enable or disable the descriptor polling of the transmit descriptor
+ * ring(s) (TxD) for port 'Port'.
+ * The new configuration is *not* saved over any SkGeStopPort() and
+ * SkGeInitPort() calls.
+ *
+ * Returns:
+ * nothing
+ */
+void SkGePollTxD(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port, /* Port Index (MAC_1 + n) */
+SK_BOOL PollTxD) /* SK_TRUE (enable pol.), SK_FALSE (disable pol.) */
+{
+ SK_GEPORT *pPrt;
+ SK_U32 DWord;
+
+ pPrt = &pAC->GIni.GP[Port];
+
+ DWord = (SK_U32)(PollTxD ? CSR_ENA_POL : CSR_DIS_POL);
+
+ if (pPrt->PXSQSize != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_CSR), DWord);
+ }
+
+ if (pPrt->PXAQSize != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_CSR), DWord);
+ }
+} /* SkGePollTxD */
+
+
+/******************************************************************************
+ *
+ * SkGeYellowLED() - Switch the yellow LED on or off.
+ *
+ * Description:
+ * Switch the yellow LED on or off.
+ *
+ * Note:
+ * This function may be called any time after SkGeInit(Level 1).
+ *
+ * Returns:
+ * nothing
+ */
+void SkGeYellowLED(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int State) /* yellow LED state, 0 = OFF, 0 != ON */
+{
+ if (State == 0) {
+ /* Switch yellow LED OFF */
+ SK_OUT8(IoC, B0_LED, LED_STAT_OFF);
+ }
+ else {
+ /* Switch yellow LED ON */
+ SK_OUT8(IoC, B0_LED, LED_STAT_ON);
+ }
+} /* SkGeYellowLED */
+
+
+#if (!defined(SK_SLIM) || defined(GENESIS))
+/******************************************************************************
+ *
+ * SkGeXmitLED() - Modify the Operational Mode of a transmission LED.
+ *
+ * Description:
+ * The Rx or Tx LED which is specified by 'Led' will be
+ * enabled, disabled or switched on in test mode.
+ *
+ * Note:
+ * 'Led' must contain the address offset of the LEDs INI register.
+ *
+ * Usage:
+ * SkGeXmitLED(pAC, IoC, MR_ADDR(Port, TX_LED_INI), SK_LED_ENA);
+ *
+ * Returns:
+ * nothing
+ */
+void SkGeXmitLED(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Led, /* offset to the LED Init Value register */
+int Mode) /* Mode may be SK_LED_DIS, SK_LED_ENA, SK_LED_TST */
+{
+ SK_U32 LedIni;
+
+ switch (Mode) {
+ case SK_LED_ENA:
+ LedIni = SK_XMIT_DUR * (SK_U32)pAC->GIni.GIHstClkFact / 100;
+ SK_OUT32(IoC, Led + XMIT_LED_INI, LedIni);
+ SK_OUT8(IoC, Led + XMIT_LED_CTRL, LED_START);
+ break;
+ case SK_LED_TST:
+ SK_OUT8(IoC, Led + XMIT_LED_TST, LED_T_ON);
+ SK_OUT32(IoC, Led + XMIT_LED_CNT, 100);
+ SK_OUT8(IoC, Led + XMIT_LED_CTRL, LED_START);
+ break;
+ case SK_LED_DIS:
+ default:
+ /*
+ * Do NOT stop the LED Timer here. The LED might be
+ * in on state. But it needs to go off.
+ */
+ SK_OUT32(IoC, Led + XMIT_LED_CNT, 0);
+ SK_OUT8(IoC, Led + XMIT_LED_TST, LED_T_OFF);
+ break;
+ }
+
+ /*
+ * 1000BT: The Transmit LED is driven by the PHY.
+ * But the default LED configuration is used for
+ * Level One and Broadcom PHYs.
+ * (Broadcom: It may be that PHY_B_PEC_EN_LTR has to be set.)
+ * (In this case it has to be added here. But we will see. XXX)
+ */
+} /* SkGeXmitLED */
+#endif /* !SK_SLIM || GENESIS */
+
+
+/******************************************************************************
+ *
+ * DoCalcAddr() - Calculates the start and the end address of a queue.
+ *
+ * Description:
+ * This function calculates the start and the end address of a queue.
+ * Afterwards the 'StartVal' is incremented to the next start position.
+ * If the port is already initialized the calculated values
+ * will be checked against the configured values and an
+ * error will be returned, if they are not equal.
+ * If the port is not initialized the values will be written to
+ * *StartAdr and *EndAddr.
+ *
+ * Returns:
+ * 0: success
+ * 1: configuration error
+ */
+static int DoCalcAddr(
+SK_AC *pAC, /* adapter context */
+SK_GEPORT SK_FAR *pPrt, /* port index */
+int QuSize, /* size of the queue to configure in kB */
+SK_U32 SK_FAR *StartVal, /* start value for address calculation */
+SK_U32 SK_FAR *QuStartAddr,/* start addr to calculate */
+SK_U32 SK_FAR *QuEndAddr) /* end address to calculate */
+{
+ SK_U32 EndVal;
+ SK_U32 NextStart;
+ int Rtv;
+
+ Rtv = 0;
+ if (QuSize == 0) {
+ EndVal = *StartVal;
+ NextStart = EndVal;
+ }
+ else {
+ EndVal = *StartVal + ((SK_U32)QuSize * 1024) - 1;
+ NextStart = EndVal + 1;
+ }
+
+ if (pPrt->PState >= SK_PRT_INIT) {
+ if (*StartVal != *QuStartAddr || EndVal != *QuEndAddr) {
+ Rtv = 1;
+ }
+ }
+ else {
+ *QuStartAddr = *StartVal;
+ *QuEndAddr = EndVal;
+ }
+
+ *StartVal = NextStart;
+ return(Rtv);
+} /* DoCalcAddr */
+
+/******************************************************************************
+ *
+ * SkGeInitAssignRamToQueues() - allocate default queue sizes
+ *
+ * Description:
+ * This function assigns the memory to the different queues and ports.
+ * When DualNet is set to SK_TRUE all ports get the same amount of memory.
+ * Otherwise the first port gets most of the memory and all the
+ * other ports just the required minimum.
+ * This function can only be called when pAC->GIni.GIRamSize and
+ * pAC->GIni.GIMacsFound have been initialized, usually this happens
+ * at init level 1
+ *
+ * Returns:
+ * 0 - ok
+ * 1 - invalid input values
+ * 2 - not enough memory
+ */
+
+int SkGeInitAssignRamToQueues(
+SK_AC *pAC, /* Adapter context */
+int ActivePort, /* Active Port in RLMT mode */
+SK_BOOL DualNet) /* adapter context */
+{
+ int i;
+ int UsedKilobytes; /* memory already assigned */
+ int ActivePortKilobytes; /* memory available for active port */
+ SK_GEPORT *pGePort;
+
+ UsedKilobytes = 0;
+
+ if (ActivePort >= pAC->GIni.GIMacsFound) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_INIT,
+ ("SkGeInitAssignRamToQueues: ActivePort (%d) invalid\n",
+ ActivePort));
+ return(1);
+ }
+ if (((pAC->GIni.GIMacsFound * (SK_MIN_RXQ_SIZE + SK_MIN_TXQ_SIZE)) +
+ ((RAM_QUOTA_SYNC == 0) ? 0 : SK_MIN_TXQ_SIZE)) > pAC->GIni.GIRamSize) {
+ SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_INIT,
+ ("SkGeInitAssignRamToQueues: Not enough memory (%d)\n",
+ pAC->GIni.GIRamSize));
+ return(2);
+ }
+
+ if (DualNet) {
+ /* every port gets the same amount of memory */
+ ActivePortKilobytes = pAC->GIni.GIRamSize / pAC->GIni.GIMacsFound;
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+
+ pGePort = &pAC->GIni.GP[i];
+
+ /* take away the minimum memory for active queues */
+ ActivePortKilobytes -= (SK_MIN_RXQ_SIZE + SK_MIN_TXQ_SIZE);
+
+ /* receive queue gets the minimum + 80% of the rest */
+ pGePort->PRxQSize = (int) (ROUND_QUEUE_SIZE_KB((
+ ActivePortKilobytes * (unsigned long) RAM_QUOTA_RX) / 100))
+ + SK_MIN_RXQ_SIZE;
+
+ ActivePortKilobytes -= (pGePort->PRxQSize - SK_MIN_RXQ_SIZE);
+
+ /* synchronous transmit queue */
+ pGePort->PXSQSize = 0;
+
+ /* asynchronous transmit queue */
+ pGePort->PXAQSize = (int) ROUND_QUEUE_SIZE_KB(ActivePortKilobytes +
+ SK_MIN_TXQ_SIZE);
+ }
+ }
+ else {
+ /* Rlmt Mode or single link adapter */
+
+ /* Set standby queue size defaults for all standby ports */
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+
+ if (i != ActivePort) {
+ pGePort = &pAC->GIni.GP[i];
+
+ pGePort->PRxQSize = SK_MIN_RXQ_SIZE;
+ pGePort->PXAQSize = SK_MIN_TXQ_SIZE;
+ pGePort->PXSQSize = 0;
+
+ /* Count used RAM */
+ UsedKilobytes += pGePort->PRxQSize + pGePort->PXAQSize;
+ }
+ }
+ /* what's left? */
+ ActivePortKilobytes = pAC->GIni.GIRamSize - UsedKilobytes;
+
+ /* assign it to the active port */
+ /* first take away the minimum memory */
+ ActivePortKilobytes -= (SK_MIN_RXQ_SIZE + SK_MIN_TXQ_SIZE);
+ pGePort = &pAC->GIni.GP[ActivePort];
+
+ /* receive queue get's the minimum + 80% of the rest */
+ pGePort->PRxQSize = (int) (ROUND_QUEUE_SIZE_KB((ActivePortKilobytes *
+ (unsigned long) RAM_QUOTA_RX) / 100)) + SK_MIN_RXQ_SIZE;
+
+ ActivePortKilobytes -= (pGePort->PRxQSize - SK_MIN_RXQ_SIZE);
+
+ /* synchronous transmit queue */
+ pGePort->PXSQSize = 0;
+
+ /* asynchronous transmit queue */
+ pGePort->PXAQSize = (int) ROUND_QUEUE_SIZE_KB(ActivePortKilobytes) +
+ SK_MIN_TXQ_SIZE;
+ }
+#ifdef VCPU
+ VCPUprintf(0, "PRxQSize=%u, PXSQSize=%u, PXAQSize=%u\n",
+ pGePort->PRxQSize, pGePort->PXSQSize, pGePort->PXAQSize);
+#endif /* VCPU */
+
+ return(0);
+} /* SkGeInitAssignRamToQueues */
+
+/******************************************************************************
+ *
+ * SkGeCheckQSize() - Checks the Adapters Queue Size Configuration
+ *
+ * Description:
+ * This function verifies the Queue Size Configuration specified
+ * in the variables PRxQSize, PXSQSize, and PXAQSize of all
+ * used ports.
+ * This requirements must be fullfilled to have a valid configuration:
+ * - The size of all queues must not exceed GIRamSize.
+ * - The queue sizes must be specified in units of 8 kB.
+ * - The size of Rx queues of available ports must not be
+ * smaller than 16 kB.
+ * - The size of at least one Tx queue (synch. or asynch.)
+ * of available ports must not be smaller than 16 kB
+ * when Jumbo Frames are used.
+ * - The RAM start and end addresses must not be changed
+ * for ports which are already initialized.
+ * Furthermore SkGeCheckQSize() defines the Start and End Addresses
+ * of all ports and stores them into the HWAC port structure.
+ *
+ * Returns:
+ * 0: Queue Size Configuration valid
+ * 1: Queue Size Configuration invalid
+ */
+static int SkGeCheckQSize(
+SK_AC *pAC, /* adapter context */
+int Port) /* port index */
+{
+ SK_GEPORT *pPrt;
+ int i;
+ int Rtv;
+ int Rtv2;
+ SK_U32 StartAddr;
+#ifndef SK_SLIM
+ int UsedMem; /* total memory used (max. found ports) */
+#endif
+
+ Rtv = 0;
+
+#ifndef SK_SLIM
+
+ UsedMem = 0;
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+ pPrt = &pAC->GIni.GP[i];
+
+ if ((pPrt->PRxQSize & QZ_UNITS) != 0 ||
+ (pPrt->PXSQSize & QZ_UNITS) != 0 ||
+ (pPrt->PXAQSize & QZ_UNITS) != 0) {
+
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E012, SKERR_HWI_E012MSG);
+ return(1);
+ }
+
+ if (i == Port && pPrt->PRxQSize < SK_MIN_RXQ_SIZE) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E011, SKERR_HWI_E011MSG);
+ return(1);
+ }
+
+ /*
+ * the size of at least one Tx queue (synch. or asynch.) has to be > 0.
+ * if Jumbo Frames are used, this size has to be >= 16 kB.
+ */
+ if ((i == Port && pPrt->PXSQSize == 0 && pPrt->PXAQSize == 0) ||
+ (pAC->GIni.GIPortUsage == SK_JUMBO_LINK &&
+ ((pPrt->PXSQSize > 0 && pPrt->PXSQSize < SK_MIN_TXQ_SIZE) ||
+ (pPrt->PXAQSize > 0 && pPrt->PXAQSize < SK_MIN_TXQ_SIZE)))) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E023, SKERR_HWI_E023MSG);
+ return(1);
+ }
+
+ UsedMem += pPrt->PRxQSize + pPrt->PXSQSize + pPrt->PXAQSize;
+ }
+
+ if (UsedMem > pAC->GIni.GIRamSize) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E012, SKERR_HWI_E012MSG);
+ return(1);
+ }
+#endif /* !SK_SLIM */
+
+ /* Now start address calculation */
+ StartAddr = pAC->GIni.GIRamOffs;
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+ pPrt = &pAC->GIni.GP[i];
+
+ /* Calculate/Check values for the receive queue */
+ Rtv2 = DoCalcAddr(pAC, pPrt, pPrt->PRxQSize, &StartAddr,
+ &pPrt->PRxQRamStart, &pPrt->PRxQRamEnd);
+ Rtv |= Rtv2;
+
+ /* Calculate/Check values for the synchronous Tx queue */
+ Rtv2 = DoCalcAddr(pAC, pPrt, pPrt->PXSQSize, &StartAddr,
+ &pPrt->PXsQRamStart, &pPrt->PXsQRamEnd);
+ Rtv |= Rtv2;
+
+ /* Calculate/Check values for the asynchronous Tx queue */
+ Rtv2 = DoCalcAddr(pAC, pPrt, pPrt->PXAQSize, &StartAddr,
+ &pPrt->PXaQRamStart, &pPrt->PXaQRamEnd);
+ Rtv |= Rtv2;
+
+ if (Rtv) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E013, SKERR_HWI_E013MSG);
+ return(1);
+ }
+ }
+
+ return(0);
+} /* SkGeCheckQSize */
+
+
+#ifdef GENESIS
+/******************************************************************************
+ *
+ * SkGeInitMacArb() - Initialize the MAC Arbiter
+ *
+ * Description:
+ * This function initializes the MAC Arbiter.
+ * It must not be called if there is still an
+ * initialized or active port.
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitMacArb(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ /* release local reset */
+ SK_OUT16(IoC, B3_MA_TO_CTRL, MA_RST_CLR);
+
+ /* configure timeout values */
+ SK_OUT8(IoC, B3_MA_TOINI_RX1, SK_MAC_TO_53);
+ SK_OUT8(IoC, B3_MA_TOINI_RX2, SK_MAC_TO_53);
+ SK_OUT8(IoC, B3_MA_TOINI_TX1, SK_MAC_TO_53);
+ SK_OUT8(IoC, B3_MA_TOINI_TX2, SK_MAC_TO_53);
+
+ SK_OUT8(IoC, B3_MA_RCINI_RX1, 0);
+ SK_OUT8(IoC, B3_MA_RCINI_RX2, 0);
+ SK_OUT8(IoC, B3_MA_RCINI_TX1, 0);
+ SK_OUT8(IoC, B3_MA_RCINI_TX2, 0);
+
+ /* recovery values are needed for XMAC II Rev. B2 only */
+ /* Fast Output Enable Mode was intended to use with Rev. B2, but now? */
+
+ /*
+ * There is no start or enable button to push, therefore
+ * the MAC arbiter is configured and enabled now.
+ */
+} /* SkGeInitMacArb */
+
+
+/******************************************************************************
+ *
+ * SkGeInitPktArb() - Initialize the Packet Arbiter
+ *
+ * Description:
+ * This function initializes the Packet Arbiter.
+ * It must not be called if there is still an
+ * initialized or active port.
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitPktArb(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ /* release local reset */
+ SK_OUT16(IoC, B3_PA_CTRL, PA_RST_CLR);
+
+ /* configure timeout values */
+ SK_OUT16(IoC, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
+ SK_OUT16(IoC, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
+ SK_OUT16(IoC, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
+ SK_OUT16(IoC, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
+
+ /*
+ * enable timeout timers if jumbo frames not used
+ * NOTE: the packet arbiter timeout interrupt is needed for
+ * half duplex hangup workaround
+ */
+ if (pAC->GIni.GIPortUsage != SK_JUMBO_LINK) {
+ if (pAC->GIni.GIMacsFound == 1) {
+ SK_OUT16(IoC, B3_PA_CTRL, PA_ENA_TO_TX1);
+ }
+ else {
+ SK_OUT16(IoC, B3_PA_CTRL, PA_ENA_TO_TX1 | PA_ENA_TO_TX2);
+ }
+ }
+} /* SkGeInitPktArb */
+#endif /* GENESIS */
+
+
+/******************************************************************************
+ *
+ * SkGeInitMacFifo() - Initialize the MAC FIFOs
+ *
+ * Description:
+ * Initialize all MAC FIFOs of the specified port
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitMacFifo(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port) /* Port Index (MAC_1 + n) */
+{
+ SK_U16 Word;
+#ifdef VCPU
+ SK_U32 DWord;
+#endif /* VCPU */
+ /*
+ * For each FIFO:
+ * - release local reset
+ * - use default value for MAC FIFO size
+ * - setup defaults for the control register
+ * - enable the FIFO
+ */
+
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+ /* Configure Rx MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, RX_MFF_CTRL2), MFF_RST_CLR);
+ SK_OUT16(IoC, MR_ADDR(Port, RX_MFF_CTRL1), MFF_RX_CTRL_DEF);
+ SK_OUT8(IoC, MR_ADDR(Port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ /* Configure Tx MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, TX_MFF_CTRL2), MFF_RST_CLR);
+ SK_OUT16(IoC, MR_ADDR(Port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
+ SK_OUT8(IoC, MR_ADDR(Port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ /* Enable frame flushing if jumbo frames used */
+ if (pAC->GIni.GIPortUsage == SK_JUMBO_LINK) {
+ SK_OUT16(IoC, MR_ADDR(Port, RX_MFF_CTRL1), MFF_ENA_FLUSH);
+ }
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+ /* set Rx GMAC FIFO Flush Mask */
+ SK_OUT16(IoC, MR_ADDR(Port, RX_GMF_FL_MSK), (SK_U16)RX_FF_FL_DEF_MSK);
+
+ Word = (SK_U16)GMF_RX_CTRL_DEF;
+
+ /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
+ if (pAC->GIni.GIYukonLite && pAC->GIni.GIChipId == CHIP_ID_YUKON) {
+
+ Word &= ~GMF_RX_F_FL_ON;
+ }
+
+ /* Configure Rx MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, RX_GMF_CTRL_T), (SK_U8)GMF_RST_CLR);
+ SK_OUT16(IoC, MR_ADDR(Port, RX_GMF_CTRL_T), Word);
+
+ /* set Rx GMAC FIFO Flush Threshold (default: 0x0a -> 56 bytes) */
+ SK_OUT16(IoC, MR_ADDR(Port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
+
+ /* Configure Tx MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T), (SK_U8)GMF_RST_CLR);
+ SK_OUT16(IoC, MR_ADDR(Port, TX_GMF_CTRL_T), (SK_U16)GMF_TX_CTRL_DEF);
+
+#ifdef VCPU
+ SK_IN32(IoC, MR_ADDR(Port, RX_GMF_AF_THR), &DWord);
+ SK_IN32(IoC, MR_ADDR(Port, TX_GMF_AE_THR), &DWord);
+#endif /* VCPU */
+
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+/* SK_OUT32(IoC, MR_ADDR(Port, TX_GMF_AE_THR), 0); */
+ }
+#endif /* YUKON */
+
+} /* SkGeInitMacFifo */
+
+#ifdef SK_LNK_SYNC_CNT
+/******************************************************************************
+ *
+ * SkGeLoadLnkSyncCnt() - Load the Link Sync Counter and starts counting
+ *
+ * Description:
+ * This function starts the Link Sync Counter of the specified
+ * port and enables the generation of an Link Sync IRQ.
+ * The Link Sync Counter may be used to detect an active link,
+ * if autonegotiation is not used.
+ *
+ * Note:
+ * o To ensure receiving the Link Sync Event the LinkSyncCounter
+ * should be initialized BEFORE clearing the XMAC's reset!
+ * o Enable IS_LNK_SYNC_M1 and IS_LNK_SYNC_M2 after calling this
+ * function.
+ *
+ * Returns:
+ * nothing
+ */
+void SkGeLoadLnkSyncCnt(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port, /* Port Index (MAC_1 + n) */
+SK_U32 CntVal) /* Counter value */
+{
+ SK_U32 OrgIMsk;
+ SK_U32 NewIMsk;
+ SK_U32 ISrc;
+ SK_BOOL IrqPend;
+
+ /* stop counter */
+ SK_OUT8(IoC, MR_ADDR(Port, LNK_SYNC_CTRL), LED_STOP);
+
+ /*
+ * ASIC problem:
+ * Each time starting the Link Sync Counter an IRQ is generated
+ * by the adapter. See problem report entry from 21.07.98
+ *
+ * Workaround: Disable Link Sync IRQ and clear the unexpeced IRQ
+ * if no IRQ is already pending.
+ */
+ IrqPend = SK_FALSE;
+ SK_IN32(IoC, B0_ISRC, &ISrc);
+ SK_IN32(IoC, B0_IMSK, &OrgIMsk);
+ if (Port == MAC_1) {
+ NewIMsk = OrgIMsk & ~IS_LNK_SYNC_M1;
+ if ((ISrc & IS_LNK_SYNC_M1) != 0) {
+ IrqPend = SK_TRUE;
+ }
+ }
+ else {
+ NewIMsk = OrgIMsk & ~IS_LNK_SYNC_M2;
+ if ((ISrc & IS_LNK_SYNC_M2) != 0) {
+ IrqPend = SK_TRUE;
+ }
+ }
+ if (!IrqPend) {
+ SK_OUT32(IoC, B0_IMSK, NewIMsk);
+ }
+
+ /* load counter */
+ SK_OUT32(IoC, MR_ADDR(Port, LNK_SYNC_INI), CntVal);
+
+ /* start counter */
+ SK_OUT8(IoC, MR_ADDR(Port, LNK_SYNC_CTRL), LED_START);
+
+ if (!IrqPend) {
+ /* clear the unexpected IRQ, and restore the interrupt mask */
+ SK_OUT8(IoC, MR_ADDR(Port, LNK_SYNC_CTRL), LED_CLR_IRQ);
+ SK_OUT32(IoC, B0_IMSK, OrgIMsk);
+ }
+} /* SkGeLoadLnkSyncCnt*/
+#endif /* SK_LNK_SYNC_CNT */
+
+#if defined(SK_DIAG) || defined(SK_CFG_SYNC)
+/******************************************************************************
+ *
+ * SkGeCfgSync() - Configure synchronous bandwidth for this port.
+ *
+ * Description:
+ * This function may be used to configure synchronous bandwidth
+ * to the specified port. This may be done any time after
+ * initializing the port. The configuration values are NOT saved
+ * in the HWAC port structure and will be overwritten any
+ * time when stopping and starting the port.
+ * Any values for the synchronous configuration will be ignored
+ * if the size of the synchronous queue is zero!
+ *
+ * The default configuration for the synchronous service is
+ * TXA_ENA_FSYNC. This means if the size of
+ * the synchronous queue is unequal zero but no specific
+ * synchronous bandwidth is configured, the synchronous queue
+ * will always have the 'unlimited' transmit priority!
+ *
+ * This mode will be restored if the synchronous bandwidth is
+ * deallocated ('IntTime' = 0 and 'LimCount' = 0).
+ *
+ * Returns:
+ * 0: success
+ * 1: parameter configuration error
+ * 2: try to configure quality of service although no
+ * synchronous queue is configured
+ */
+int SkGeCfgSync(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port, /* Port Index (MAC_1 + n) */
+SK_U32 IntTime, /* Interval Timer Value in units of 8ns */
+SK_U32 LimCount, /* Number of bytes to transfer during IntTime */
+int SyncMode) /* Sync Mode: TXA_ENA_ALLOC | TXA_DIS_ALLOC | 0 */
+{
+ int Rtv;
+
+ Rtv = 0;
+
+ /* check the parameters */
+ if (LimCount > IntTime ||
+ (LimCount == 0 && IntTime != 0) ||
+ (LimCount != 0 && IntTime == 0)) {
+
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E010, SKERR_HWI_E010MSG);
+ return(1);
+ }
+
+ if (pAC->GIni.GP[Port].PXSQSize == 0) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E009, SKERR_HWI_E009MSG);
+ return(2);
+ }
+
+ /* calculate register values */
+ IntTime = (IntTime / 2) * pAC->GIni.GIHstClkFact / 100;
+ LimCount = LimCount / 8;
+
+ if (IntTime > TXA_MAX_VAL || LimCount > TXA_MAX_VAL) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E010, SKERR_HWI_E010MSG);
+ return(1);
+ }
+
+ /*
+ * - Enable 'Force Sync' to ensure the synchronous queue
+ * has the priority while configuring the new values.
+ * - Also 'disable alloc' to ensure the settings complies
+ * to the SyncMode parameter.
+ * - Disable 'Rate Control' to configure the new values.
+ * - write IntTime and LimCount
+ * - start 'Rate Control' and disable 'Force Sync'
+ * if Interval Timer or Limit Counter not zero.
+ */
+ SK_OUT8(IoC, MR_ADDR(Port, TXA_CTRL),
+ TXA_ENA_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
+
+ SK_OUT32(IoC, MR_ADDR(Port, TXA_ITI_INI), IntTime);
+ SK_OUT32(IoC, MR_ADDR(Port, TXA_LIM_INI), LimCount);
+
+ SK_OUT8(IoC, MR_ADDR(Port, TXA_CTRL),
+ (SK_U8)(SyncMode & (TXA_ENA_ALLOC | TXA_DIS_ALLOC)));
+
+ if (IntTime != 0 || LimCount != 0) {
+ SK_OUT8(IoC, MR_ADDR(Port, TXA_CTRL), TXA_DIS_FSYNC | TXA_START_RC);
+ }
+
+ return(0);
+} /* SkGeCfgSync */
+#endif /* SK_DIAG || SK_CFG_SYNC*/
+
+
+/******************************************************************************
+ *
+ * DoInitRamQueue() - Initialize the RAM Buffer Address of a single Queue
+ *
+ * Desccription:
+ * If the queue is used, enable and initialize it.
+ * Make sure the queue is still reset, if it is not used.
+ *
+ * Returns:
+ * nothing
+ */
+static void DoInitRamQueue(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int QuIoOffs, /* Queue IO Address Offset */
+SK_U32 QuStartAddr, /* Queue Start Address */
+SK_U32 QuEndAddr, /* Queue End Address */
+int QuType) /* Queue Type (SK_RX_SRAM_Q|SK_RX_BRAM_Q|SK_TX_RAM_Q) */
+{
+ SK_U32 RxUpThresVal;
+ SK_U32 RxLoThresVal;
+
+ if (QuStartAddr != QuEndAddr) {
+ /* calculate thresholds, assume we have a big Rx queue */
+ RxUpThresVal = (QuEndAddr + 1 - QuStartAddr - SK_RB_ULPP) / 8;
+ RxLoThresVal = (QuEndAddr + 1 - QuStartAddr - SK_RB_LLPP_B)/8;
+
+ /* build HW address format */
+ QuStartAddr = QuStartAddr / 8;
+ QuEndAddr = QuEndAddr / 8;
+
+ /* release local reset */
+ SK_OUT8(IoC, RB_ADDR(QuIoOffs, RB_CTRL), RB_RST_CLR);
+
+ /* configure addresses */
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_START), QuStartAddr);
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_END), QuEndAddr);
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_WP), QuStartAddr);
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_RP), QuStartAddr);
+
+ switch (QuType) {
+ case SK_RX_SRAM_Q:
+ /* configure threshold for small Rx Queue */
+ RxLoThresVal += (SK_RB_LLPP_B - SK_RB_LLPP_S) / 8;
+
+ /* continue with SK_RX_BRAM_Q */
+ case SK_RX_BRAM_Q:
+ /* write threshold for Rx Queue */
+
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_RX_UTPP), RxUpThresVal);
+ SK_OUT32(IoC, RB_ADDR(QuIoOffs, RB_RX_LTPP), RxLoThresVal);
+
+ /* the high priority threshold not used */
+ break;
+ case SK_TX_RAM_Q:
+ /*
+ * Do NOT use Store & Forward under normal operation due to
+ * performance optimization (GENESIS only).
+ * But if Jumbo Frames are configured (XMAC Tx FIFO is only 4 kB)
+ * or YUKON is used ((GMAC Tx FIFO is only 1 kB)
+ * we NEED Store & Forward of the RAM buffer.
+ */
+ if (pAC->GIni.GIPortUsage == SK_JUMBO_LINK ||
+ pAC->GIni.GIYukon) {
+ /* enable Store & Forward Mode for the Tx Side */
+ SK_OUT8(IoC, RB_ADDR(QuIoOffs, RB_CTRL), RB_ENA_STFWD);
+ }
+ break;
+ }
+
+ /* set queue operational */
+ SK_OUT8(IoC, RB_ADDR(QuIoOffs, RB_CTRL), RB_ENA_OP_MD);
+ }
+ else {
+ /* ensure the queue is still disabled */
+ SK_OUT8(IoC, RB_ADDR(QuIoOffs, RB_CTRL), RB_RST_SET);
+ }
+} /* DoInitRamQueue */
+
+
+/******************************************************************************
+ *
+ * SkGeInitRamBufs() - Initialize the RAM Buffer Queues
+ *
+ * Description:
+ * Initialize all RAM Buffer Queues of the specified port
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitRamBufs(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port) /* Port Index (MAC_1 + n) */
+{
+ SK_GEPORT *pPrt;
+ int RxQType;
+
+ pPrt = &pAC->GIni.GP[Port];
+
+ if (pPrt->PRxQSize == SK_MIN_RXQ_SIZE) {
+ RxQType = SK_RX_SRAM_Q; /* small Rx Queue */
+ }
+ else {
+ RxQType = SK_RX_BRAM_Q; /* big Rx Queue */
+ }
+
+ DoInitRamQueue(pAC, IoC, pPrt->PRxQOff, pPrt->PRxQRamStart,
+ pPrt->PRxQRamEnd, RxQType);
+
+ DoInitRamQueue(pAC, IoC, pPrt->PXsQOff, pPrt->PXsQRamStart,
+ pPrt->PXsQRamEnd, SK_TX_RAM_Q);
+
+ DoInitRamQueue(pAC, IoC, pPrt->PXaQOff, pPrt->PXaQRamStart,
+ pPrt->PXaQRamEnd, SK_TX_RAM_Q);
+
+} /* SkGeInitRamBufs */
+
+
+/******************************************************************************
+ *
+ * SkGeInitRamIface() - Initialize the RAM Interface
+ *
+ * Description:
+ * This function initializes the Adapters RAM Interface.
+ *
+ * Note:
+ * This function is used in the diagnostics.
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitRamIface(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ /* release local reset */
+ SK_OUT16(IoC, B3_RI_CTRL, RI_RST_CLR);
+
+ /* configure timeout values */
+ SK_OUT8(IoC, B3_RI_WTO_R1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_WTO_XA1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_WTO_XS1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_R1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_XA1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_XS1, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_WTO_R2, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_WTO_XA2, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_WTO_XS2, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_R2, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_XA2, SK_RI_TO_53);
+ SK_OUT8(IoC, B3_RI_RTO_XS2, SK_RI_TO_53);
+
+} /* SkGeInitRamIface */
+
+
+/******************************************************************************
+ *
+ * SkGeInitBmu() - Initialize the BMU state machines
+ *
+ * Description:
+ * Initialize all BMU state machines of the specified port
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInitBmu(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port) /* Port Index (MAC_1 + n) */
+{
+ SK_GEPORT *pPrt;
+ SK_U32 RxWm;
+ SK_U32 TxWm;
+
+ pPrt = &pAC->GIni.GP[Port];
+
+ RxWm = SK_BMU_RX_WM;
+ TxWm = SK_BMU_TX_WM;
+
+ if (!pAC->GIni.GIPciSlot64 && !pAC->GIni.GIPciClock66) {
+ /* for better performance */
+ RxWm /= 2;
+ TxWm /= 2;
+ }
+
+ /* Rx Queue: Release all local resets and set the watermark */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PRxQOff, Q_CSR), CSR_CLR_RESET);
+ SK_OUT32(IoC, Q_ADDR(pPrt->PRxQOff, Q_F), RxWm);
+
+ /*
+ * Tx Queue: Release all local resets if the queue is used !
+ * set watermark
+ */
+ if (pPrt->PXSQSize != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_CSR), CSR_CLR_RESET);
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_F), TxWm);
+ }
+
+ if (pPrt->PXAQSize != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_CSR), CSR_CLR_RESET);
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_F), TxWm);
+ }
+ /*
+ * Do NOT enable the descriptor poll timers here, because
+ * the descriptor addresses are not specified yet.
+ */
+} /* SkGeInitBmu */
+
+
+/******************************************************************************
+ *
+ * TestStopBit() - Test the stop bit of the queue
+ *
+ * Description:
+ * Stopping a queue is not as simple as it seems to be.
+ * If descriptor polling is enabled, it may happen
+ * that RX/TX stop is done and SV idle is NOT set.
+ * In this case we have to issue another stop command.
+ *
+ * Returns:
+ * The queues control status register
+ */
+static SK_U32 TestStopBit(
+SK_AC *pAC, /* Adapter Context */
+SK_IOC IoC, /* IO Context */
+int QuIoOffs) /* Queue IO Address Offset */
+{
+ SK_U32 QuCsr; /* CSR contents */
+
+ SK_IN32(IoC, Q_ADDR(QuIoOffs, Q_CSR), &QuCsr);
+
+ if ((QuCsr & (CSR_STOP | CSR_SV_IDLE)) == 0) {
+ /* Stop Descriptor overridden by start command */
+ SK_OUT32(IoC, Q_ADDR(QuIoOffs, Q_CSR), CSR_STOP);
+
+ SK_IN32(IoC, Q_ADDR(QuIoOffs, Q_CSR), &QuCsr);
+ }
+
+ return(QuCsr);
+} /* TestStopBit */
+
+
+/******************************************************************************
+ *
+ * SkGeStopPort() - Stop the Rx/Tx activity of the port 'Port'.
+ *
+ * Description:
+ * After calling this function the descriptor rings and Rx and Tx
+ * queues of this port may be reconfigured.
+ *
+ * It is possible to stop the receive and transmit path separate or
+ * both together.
+ *
+ * Dir = SK_STOP_TX Stops the transmit path only and resets the MAC.
+ * The receive queue is still active and
+ * the pending Rx frames may be still transferred
+ * into the RxD.
+ * SK_STOP_RX Stop the receive path. The tansmit path
+ * has to be stopped once before.
+ * SK_STOP_ALL SK_STOP_TX + SK_STOP_RX
+ *
+ * RstMode = SK_SOFT_RST Resets the MAC. The PHY is still alive.
+ * SK_HARD_RST Resets the MAC and the PHY.
+ *
+ * Example:
+ * 1) A Link Down event was signaled for a port. Therefore the activity
+ * of this port should be stopped and a hardware reset should be issued
+ * to enable the workaround of XMAC Errata #2. But the received frames
+ * should not be discarded.
+ * ...
+ * SkGeStopPort(pAC, IoC, Port, SK_STOP_TX, SK_HARD_RST);
+ * (transfer all pending Rx frames)
+ * SkGeStopPort(pAC, IoC, Port, SK_STOP_RX, SK_HARD_RST);
+ * ...
+ *
+ * 2) An event was issued which request the driver to switch
+ * the 'virtual active' link to an other already active port
+ * as soon as possible. The frames in the receive queue of this
+ * port may be lost. But the PHY must not be reset during this
+ * event.
+ * ...
+ * SkGeStopPort(pAC, IoC, Port, SK_STOP_ALL, SK_SOFT_RST);
+ * ...
+ *
+ * Extended Description:
+ * If SK_STOP_TX is set,
+ * o disable the MAC's receive and transmitter to prevent
+ * from sending incomplete frames
+ * o stop the port's transmit queues before terminating the
+ * BMUs to prevent from performing incomplete PCI cycles
+ * on the PCI bus
+ * - The network Rx and Tx activity and PCI Tx transfer is
+ * disabled now.
+ * o reset the MAC depending on the RstMode
+ * o Stop Interval Timer and Limit Counter of Tx Arbiter,
+ * also disable Force Sync bit and Enable Alloc bit.
+ * o perform a local reset of the port's Tx path
+ * - reset the PCI FIFO of the async Tx queue
+ * - reset the PCI FIFO of the sync Tx queue
+ * - reset the RAM Buffer async Tx queue
+ * - reset the RAM Buffer sync Tx queue
+ * - reset the MAC Tx FIFO
+ * o switch Link and Tx LED off, stop the LED counters
+ *
+ * If SK_STOP_RX is set,
+ * o stop the port's receive queue
+ * - The path data transfer activity is fully stopped now.
+ * o perform a local reset of the port's Rx path
+ * - reset the PCI FIFO of the Rx queue
+ * - reset the RAM Buffer receive queue
+ * - reset the MAC Rx FIFO
+ * o switch Rx LED off, stop the LED counter
+ *
+ * If all ports are stopped,
+ * o reset the RAM Interface.
+ *
+ * Notes:
+ * o This function may be called during the driver states RESET_PORT and
+ * SWITCH_PORT.
+ */
+void SkGeStopPort(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* I/O context */
+int Port, /* port to stop (MAC_1 + n) */
+int Dir, /* Direction to Stop (SK_STOP_RX, SK_STOP_TX, SK_STOP_ALL) */
+int RstMode)/* Reset Mode (SK_SOFT_RST, SK_HARD_RST) */
+{
+#ifndef SK_DIAG
+ SK_EVPARA Para;
+#endif /* !SK_DIAG */
+ SK_GEPORT *pPrt;
+ SK_U32 DWord;
+ SK_U32 XsCsr;
+ SK_U32 XaCsr;
+ SK_U64 ToutStart;
+ int i;
+ int ToutCnt;
+
+ pPrt = &pAC->GIni.GP[Port];
+
+ if ((Dir & SK_STOP_TX) != 0) {
+ /* disable receiver and transmitter */
+ SkMacRxTxDisable(pAC, IoC, Port);
+
+ /* stop both transmit queues */
+ /*
+ * If the BMU is in the reset state CSR_STOP will terminate
+ * immediately.
+ */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_CSR), CSR_STOP);
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_CSR), CSR_STOP);
+
+ ToutStart = SkOsGetTime(pAC);
+ ToutCnt = 0;
+ do {
+ /*
+ * Clear packet arbiter timeout to make sure
+ * this loop will terminate.
+ */
+ SK_OUT16(IoC, B3_PA_CTRL, (SK_U16)((Port == MAC_1) ?
+ PA_CLR_TO_TX1 : PA_CLR_TO_TX2));
+
+ /*
+ * If the transfer stucks at the MAC the STOP command will not
+ * terminate if we don't flush the XMAC's transmit FIFO !
+ */
+ SkMacFlushTxFifo(pAC, IoC, Port);
+
+ XsCsr = TestStopBit(pAC, IoC, pPrt->PXsQOff);
+ XaCsr = TestStopBit(pAC, IoC, pPrt->PXaQOff);
+
+ if (SkOsGetTime(pAC) - ToutStart > (SK_TICKS_PER_SEC / 18)) {
+ /*
+ * Timeout of 1/18 second reached.
+ * This needs to be checked at 1/18 sec only.
+ */
+ ToutCnt++;
+ if (ToutCnt > 1) {
+ /* Might be a problem when the driver event handler
+ * calls StopPort again. XXX.
+ */
+
+ /* Fatal Error, Loop aborted */
+ SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_HWI_E018,
+ SKERR_HWI_E018MSG);
+#ifndef SK_DIAG
+ Para.Para64 = Port;
+ SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
+#endif /* !SK_DIAG */
+ return;
+ }
+ /*
+ * Cache incoherency workaround: Assume a start command
+ * has been lost while sending the frame.
+ */
+ ToutStart = SkOsGetTime(pAC);
+
+ if ((XsCsr & CSR_STOP) != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_CSR), CSR_START);
+ }
+ if ((XaCsr & CSR_STOP) != 0) {
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_CSR), CSR_START);
+ }
+ }
+
+ /*
+ * Because of the ASIC problem report entry from 21.08.1998 it is
+ * required to wait until CSR_STOP is reset and CSR_SV_IDLE is set.
+ */
+ } while ((XsCsr & (CSR_STOP | CSR_SV_IDLE)) != CSR_SV_IDLE ||
+ (XaCsr & (CSR_STOP | CSR_SV_IDLE)) != CSR_SV_IDLE);
+
+ /* Reset the MAC depending on the RstMode */
+ if (RstMode == SK_SOFT_RST) {
+ SkMacSoftRst(pAC, IoC, Port);
+ }
+ else {
+ SkMacHardRst(pAC, IoC, Port);
+ }
+
+ /* Disable Force Sync bit and Enable Alloc bit */
+ SK_OUT8(IoC, MR_ADDR(Port, TXA_CTRL),
+ TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
+
+ /* Stop Interval Timer and Limit Counter of Tx Arbiter */
+ SK_OUT32(IoC, MR_ADDR(Port, TXA_ITI_INI), 0L);
+ SK_OUT32(IoC, MR_ADDR(Port, TXA_LIM_INI), 0L);
+
+ /* Perform a local reset of the port's Tx path */
+
+ /* Reset the PCI FIFO of the async Tx queue */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXaQOff, Q_CSR), CSR_SET_RESET);
+ /* Reset the PCI FIFO of the sync Tx queue */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PXsQOff, Q_CSR), CSR_SET_RESET);
+ /* Reset the RAM Buffer async Tx queue */
+ SK_OUT8(IoC, RB_ADDR(pPrt->PXaQOff, RB_CTRL), RB_RST_SET);
+ /* Reset the RAM Buffer sync Tx queue */
+ SK_OUT8(IoC, RB_ADDR(pPrt->PXsQOff, RB_CTRL), RB_RST_SET);
+
+ /* Reset Tx MAC FIFO */
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+ /* Note: MFF_RST_SET does NOT reset the XMAC ! */
+ SK_OUT8(IoC, MR_ADDR(Port, TX_MFF_CTRL2), MFF_RST_SET);
+
+ /* switch Link and Tx LED off, stop the LED counters */
+ /* Link LED is switched off by the RLMT and the Diag itself */
+ SkGeXmitLED(pAC, IoC, MR_ADDR(Port, TX_LED_INI), SK_LED_DIS);
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+ /* Reset TX MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T), (SK_U8)GMF_RST_SET);
+ }
+#endif /* YUKON */
+ }
+
+ if ((Dir & SK_STOP_RX) != 0) {
+ /*
+ * The RX Stop Command will not terminate if no buffers
+ * are queued in the RxD ring. But it will always reach
+ * the Idle state. Therefore we can use this feature to
+ * stop the transfer of received packets.
+ */
+ /* stop the port's receive queue */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PRxQOff, Q_CSR), CSR_STOP);
+
+ i = 100;
+ do {
+ /*
+ * Clear packet arbiter timeout to make sure
+ * this loop will terminate
+ */
+ SK_OUT16(IoC, B3_PA_CTRL, (SK_U16)((Port == MAC_1) ?
+ PA_CLR_TO_RX1 : PA_CLR_TO_RX2));
+
+ DWord = TestStopBit(pAC, IoC, pPrt->PRxQOff);
+
+ /* timeout if i==0 (bug fix for #10748) */
+ if (--i == 0) {
+ SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_HWI_E024,
+ SKERR_HWI_E024MSG);
+ break;
+ }
+ /*
+ * because of the ASIC problem report entry from 21.08.98
+ * it is required to wait until CSR_STOP is reset and
+ * CSR_SV_IDLE is set.
+ */
+ } while ((DWord & (CSR_STOP | CSR_SV_IDLE)) != CSR_SV_IDLE);
+
+ /* The path data transfer activity is fully stopped now */
+
+ /* Perform a local reset of the port's Rx path */
+
+ /* Reset the PCI FIFO of the Rx queue */
+ SK_OUT32(IoC, Q_ADDR(pPrt->PRxQOff, Q_CSR), CSR_SET_RESET);
+ /* Reset the RAM Buffer receive queue */
+ SK_OUT8(IoC, RB_ADDR(pPrt->PRxQOff, RB_CTRL), RB_RST_SET);
+
+ /* Reset Rx MAC FIFO */
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+
+ SK_OUT8(IoC, MR_ADDR(Port, RX_MFF_CTRL2), MFF_RST_SET);
+
+ /* switch Rx LED off, stop the LED counter */
+ SkGeXmitLED(pAC, IoC, MR_ADDR(Port, RX_LED_INI), SK_LED_DIS);
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+ /* Reset Rx MAC FIFO */
+ SK_OUT8(IoC, MR_ADDR(Port, RX_GMF_CTRL_T), (SK_U8)GMF_RST_SET);
+ }
+#endif /* YUKON */
+ }
+} /* SkGeStopPort */
+
+
+/******************************************************************************
+ *
+ * SkGeInit0() - Level 0 Initialization
+ *
+ * Description:
+ * - Initialize the BMU address offsets
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInit0(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ int i;
+ SK_GEPORT *pPrt;
+
+ for (i = 0; i < SK_MAX_MACS; i++) {
+ pPrt = &pAC->GIni.GP[i];
+
+ pPrt->PState = SK_PRT_RESET;
+ pPrt->PRxQOff = QOffTab[i].RxQOff;
+ pPrt->PXsQOff = QOffTab[i].XsQOff;
+ pPrt->PXaQOff = QOffTab[i].XaQOff;
+ pPrt->PCheckPar = SK_FALSE;
+ pPrt->PIsave = 0;
+ pPrt->PPrevShorts = 0;
+ pPrt->PLinkResCt = 0;
+ pPrt->PAutoNegTOCt = 0;
+ pPrt->PPrevRx = 0;
+ pPrt->PPrevFcs = 0;
+ pPrt->PRxLim = SK_DEF_RX_WA_LIM;
+ pPrt->PLinkMode = (SK_U8)SK_LMODE_AUTOFULL;
+ pPrt->PLinkSpeedCap = (SK_U8)SK_LSPEED_CAP_1000MBPS;
+ pPrt->PLinkSpeed = (SK_U8)SK_LSPEED_1000MBPS;
+ pPrt->PLinkSpeedUsed = (SK_U8)SK_LSPEED_STAT_UNKNOWN;
+ pPrt->PLinkModeConf = (SK_U8)SK_LMODE_AUTOSENSE;
+ pPrt->PFlowCtrlMode = (SK_U8)SK_FLOW_MODE_SYM_OR_REM;
+ pPrt->PLinkCap = (SK_U8)(SK_LMODE_CAP_HALF | SK_LMODE_CAP_FULL |
+ SK_LMODE_CAP_AUTOHALF | SK_LMODE_CAP_AUTOFULL);
+ pPrt->PLinkModeStatus = (SK_U8)SK_LMODE_STAT_UNKNOWN;
+ pPrt->PFlowCtrlCap = (SK_U8)SK_FLOW_MODE_SYM_OR_REM;
+ pPrt->PFlowCtrlStatus = (SK_U8)SK_FLOW_STAT_NONE;
+ pPrt->PMSCap = 0;
+ pPrt->PMSMode = (SK_U8)SK_MS_MODE_AUTO;
+ pPrt->PMSStatus = (SK_U8)SK_MS_STAT_UNSET;
+ pPrt->PLipaAutoNeg = (SK_U8)SK_LIPA_UNKNOWN;
+ pPrt->PAutoNegFail = SK_FALSE;
+ pPrt->PHWLinkUp = SK_FALSE;
+ pPrt->PLinkBroken = SK_TRUE; /* See WA code */
+ pPrt->PPhyPowerState = PHY_PM_OPERATIONAL_MODE;
+ pPrt->PMacColThres = TX_COL_DEF;
+ pPrt->PMacJamLen = TX_JAM_LEN_DEF;
+ pPrt->PMacJamIpgVal = TX_JAM_IPG_DEF;
+ pPrt->PMacJamIpgData = TX_IPG_JAM_DEF;
+ pPrt->PMacIpgData = IPG_DATA_DEF;
+ pPrt->PMacLimit4 = SK_FALSE;
+ }
+
+ pAC->GIni.GIPortUsage = SK_RED_LINK;
+ pAC->GIni.GILedBlinkCtrl = (SK_U16)OemConfig.Value;
+ pAC->GIni.GIValIrqMask = IS_ALL_MSK;
+
+} /* SkGeInit0*/
+
+
+/******************************************************************************
+ *
+ * SkGeInit1() - Level 1 Initialization
+ *
+ * Description:
+ * o Do a software reset.
+ * o Clear all reset bits.
+ * o Verify that the detected hardware is present.
+ * Return an error if not.
+ * o Get the hardware configuration
+ * + Read the number of MACs/Ports.
+ * + Read the RAM size.
+ * + Read the PCI Revision Id.
+ * + Find out the adapters host clock speed
+ * + Read and check the PHY type
+ *
+ * Returns:
+ * 0: success
+ * 5: Unexpected PHY type detected
+ * 6: HW self test failed
+ */
+static int SkGeInit1(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ SK_U8 Byte;
+ SK_U16 Word;
+ SK_U16 CtrlStat;
+ SK_U32 DWord;
+ int RetVal;
+ int i;
+
+ RetVal = 0;
+
+ /* save CLK_RUN bits (YUKON-Lite) */
+ SK_IN16(IoC, B0_CTST, &CtrlStat);
+
+ /* do the SW-reset */
+ SK_OUT8(IoC, B0_CTST, CS_RST_SET);
+
+ /* release the SW-reset */
+ SK_OUT8(IoC, B0_CTST, CS_RST_CLR);
+
+ /* reset all error bits in the PCI STATUS register */
+ /*
+ * Note: PCI Cfg cycles cannot be used, because they are not
+ * available on some platforms after 'boot time'.
+ */
+ 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), (SK_U16)(Word | PCI_ERRBITS));
+ SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ /* release Master Reset */
+ SK_OUT8(IoC, B0_CTST, CS_MRST_CLR);
+
+#ifdef CLK_RUN
+ CtrlStat |= CS_CLK_RUN_ENA;
+#endif /* CLK_RUN */
+
+ /* restore CLK_RUN bits */
+ SK_OUT16(IoC, B0_CTST, (SK_U16)(CtrlStat &
+ (CS_CLK_RUN_HOT | CS_CLK_RUN_RST | CS_CLK_RUN_ENA)));
+
+ /* read Chip Identification Number */
+ SK_IN8(IoC, B2_CHIP_ID, &Byte);
+ pAC->GIni.GIChipId = Byte;
+
+ /* read number of MACs */
+ SK_IN8(IoC, B2_MAC_CFG, &Byte);
+ pAC->GIni.GIMacsFound = (Byte & CFG_SNG_MAC) ? 1 : 2;
+
+ /* get Chip Revision Number */
+ pAC->GIni.GIChipRev = (SK_U8)((Byte & CFG_CHIP_R_MSK) >> 4);
+
+ /* get diff. PCI parameters */
+ SK_IN16(IoC, B0_CTST, &CtrlStat);
+
+ /* read the adapters RAM size */
+ SK_IN8(IoC, B2_E_0, &Byte);
+
+ pAC->GIni.GIGenesis = SK_FALSE;
+ pAC->GIni.GIYukon = SK_FALSE;
+ pAC->GIni.GIYukonLite = SK_FALSE;
+
+#ifdef GENESIS
+ if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
+
+ pAC->GIni.GIGenesis = SK_TRUE;
+
+ if (Byte == (SK_U8)3) {
+ /* special case: 4 x 64k x 36, offset = 0x80000 */
+ pAC->GIni.GIRamSize = 1024;
+ pAC->GIni.GIRamOffs = (SK_U32)512 * 1024;
+ }
+ else {
+ pAC->GIni.GIRamSize = (int)Byte * 512;
+ pAC->GIni.GIRamOffs = 0;
+ }
+ /* all GE adapters work with 53.125 MHz host clock */
+ pAC->GIni.GIHstClkFact = SK_FACT_53;
+
+ /* set Descr. Poll Timer Init Value to 250 ms */
+ pAC->GIni.GIPollTimerVal =
+ SK_DPOLL_DEF * (SK_U32)pAC->GIni.GIHstClkFact / 100;
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIChipId != CHIP_ID_GENESIS) {
+
+ pAC->GIni.GIYukon = SK_TRUE;
+
+ pAC->GIni.GIRamSize = (Byte == (SK_U8)0) ? 128 : (int)Byte * 4;
+
+ pAC->GIni.GIRamOffs = 0;
+
+ /* WA for chip Rev. A */
+ pAC->GIni.GIWolOffs = (pAC->GIni.GIChipId == CHIP_ID_YUKON &&
+ pAC->GIni.GIChipRev == 0) ? WOL_REG_OFFS : 0;
+
+ /* get PM Capabilities of PCI config space */
+ SK_IN16(IoC, PCI_C(PCI_PM_CAP_REG), &Word);
+
+ /* check if VAUX is available */
+ if (((CtrlStat & CS_VAUX_AVAIL) != 0) &&
+ /* check also if PME from D3cold is set */
+ ((Word & PCI_PME_D3C_SUP) != 0)) {
+ /* set entry in GE init struct */
+ pAC->GIni.GIVauxAvail = SK_TRUE;
+ }
+
+ if (pAC->GIni.GIChipId == CHIP_ID_YUKON_LITE) {
+ /* this is Rev. A1 */
+ pAC->GIni.GIYukonLite = SK_TRUE;
+ }
+ else {
+ /* save Flash-Address Register */
+ SK_IN32(IoC, B2_FAR, &DWord);
+
+ /* test Flash-Address Register */
+ SK_OUT8(IoC, B2_FAR + 3, 0xff);
+ SK_IN8(IoC, B2_FAR + 3, &Byte);
+
+ if (Byte != 0) {
+ /* this is Rev. A0 */
+ pAC->GIni.GIYukonLite = SK_TRUE;
+
+ /* restore Flash-Address Register */
+ SK_OUT32(IoC, B2_FAR, DWord);
+ }
+ }
+
+ /* switch power to VCC (WA for VAUX problem) */
+ SK_OUT8(IoC, B0_POWER_CTRL, (SK_U8)(PC_VAUX_ENA | PC_VCC_ENA |
+ PC_VAUX_OFF | PC_VCC_ON));
+
+ /* read the Interrupt source */
+ SK_IN32(IoC, B0_ISRC, &DWord);
+
+ if ((DWord & IS_HW_ERR) != 0) {
+ /* read the HW Error Interrupt source */
+ SK_IN32(IoC, B0_HWE_ISRC, &DWord);
+
+ if ((DWord & IS_IRQ_SENSOR) != 0) {
+ /* disable HW Error IRQ */
+ pAC->GIni.GIValIrqMask &= ~IS_HW_ERR;
+ }
+ }
+
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+ /* set GMAC Link Control reset */
+ SK_OUT16(IoC, MR_ADDR(i, GMAC_LINK_CTRL), GMLC_RST_SET);
+
+ /* clear GMAC Link Control reset */
+ SK_OUT16(IoC, MR_ADDR(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
+ }
+ /* all YU chips work with 78.125 MHz host clock */
+ pAC->GIni.GIHstClkFact = SK_FACT_78;
+
+ pAC->GIni.GIPollTimerVal = SK_DPOLL_MAX; /* 215 ms */
+ }
+#endif /* YUKON */
+
+ /* check if 64-bit PCI Slot is present */
+ pAC->GIni.GIPciSlot64 = (SK_BOOL)((CtrlStat & CS_BUS_SLOT_SZ) != 0);
+
+ /* check if 66 MHz PCI Clock is active */
+ pAC->GIni.GIPciClock66 = (SK_BOOL)((CtrlStat & CS_BUS_CLOCK) != 0);
+
+ /* read PCI HW Revision Id. */
+ SK_IN8(IoC, PCI_C(PCI_REV_ID), &Byte);
+ pAC->GIni.GIPciHwRev = Byte;
+
+ /* read the PMD type */
+ SK_IN8(IoC, B2_PMD_TYP, &Byte);
+ pAC->GIni.GICopperType = (SK_U8)(Byte == 'T');
+
+ /* read the PHY type */
+ SK_IN8(IoC, B2_E_1, &Byte);
+
+ Byte &= 0x0f; /* the PHY type is stored in the lower nibble */
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+ switch (Byte) {
+ case SK_PHY_XMAC:
+ pAC->GIni.GP[i].PhyAddr = PHY_ADDR_XMAC;
+ break;
+ case SK_PHY_BCOM:
+ pAC->GIni.GP[i].PhyAddr = PHY_ADDR_BCOM;
+ pAC->GIni.GP[i].PMSCap = (SK_U8)(SK_MS_CAP_AUTO |
+ SK_MS_CAP_MASTER | SK_MS_CAP_SLAVE);
+ break;
+#ifdef OTHER_PHY
+ case SK_PHY_LONE:
+ pAC->GIni.GP[i].PhyAddr = PHY_ADDR_LONE;
+ break;
+ case SK_PHY_NAT:
+ pAC->GIni.GP[i].PhyAddr = PHY_ADDR_NAT;
+ break;
+#endif /* OTHER_PHY */
+ default:
+ /* ERROR: unexpected PHY type detected */
+ RetVal = 5;
+ break;
+ }
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+
+ if (Byte < (SK_U8)SK_PHY_MARV_COPPER) {
+ /* if this field is not initialized */
+ Byte = (SK_U8)SK_PHY_MARV_COPPER;
+
+ pAC->GIni.GICopperType = SK_TRUE;
+ }
+
+ pAC->GIni.GP[i].PhyAddr = PHY_ADDR_MARV;
+
+ if (pAC->GIni.GICopperType) {
+
+ pAC->GIni.GP[i].PLinkSpeedCap = (SK_U8)(SK_LSPEED_CAP_AUTO |
+ SK_LSPEED_CAP_10MBPS | SK_LSPEED_CAP_100MBPS |
+ SK_LSPEED_CAP_1000MBPS);
+
+ pAC->GIni.GP[i].PLinkSpeed = (SK_U8)SK_LSPEED_AUTO;
+
+ pAC->GIni.GP[i].PMSCap = (SK_U8)(SK_MS_CAP_AUTO |
+ SK_MS_CAP_MASTER | SK_MS_CAP_SLAVE);
+ }
+ else {
+ Byte = (SK_U8)SK_PHY_MARV_FIBER;
+ }
+ }
+#endif /* YUKON */
+
+ pAC->GIni.GP[i].PhyType = (int)Byte;
+
+ SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_INIT,
+ ("PHY type: %d PHY addr: %04x\n", Byte,
+ pAC->GIni.GP[i].PhyAddr));
+ }
+
+ /* get MAC Type & set function pointers dependent on */
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+
+ pAC->GIni.GIMacType = SK_MAC_XMAC;
+
+ pAC->GIni.GIFunc.pFnMacUpdateStats = SkXmUpdateStats;
+ pAC->GIni.GIFunc.pFnMacStatistic = SkXmMacStatistic;
+ pAC->GIni.GIFunc.pFnMacResetCounter = SkXmResetCounter;
+ pAC->GIni.GIFunc.pFnMacOverflow = SkXmOverflowStatus;
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+
+ pAC->GIni.GIMacType = SK_MAC_GMAC;
+
+ pAC->GIni.GIFunc.pFnMacUpdateStats = SkGmUpdateStats;
+ pAC->GIni.GIFunc.pFnMacStatistic = SkGmMacStatistic;
+ pAC->GIni.GIFunc.pFnMacResetCounter = SkGmResetCounter;
+ pAC->GIni.GIFunc.pFnMacOverflow = SkGmOverflowStatus;
+
+#ifdef SPECIAL_HANDLING
+ if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
+ /* check HW self test result */
+ SK_IN8(IoC, B2_E_3, &Byte);
+ if (Byte & B2_E3_RES_MASK) {
+ RetVal = 6;
+ }
+ }
+#endif
+ }
+#endif /* YUKON */
+
+ return(RetVal);
+} /* SkGeInit1 */
+
+
+/******************************************************************************
+ *
+ * SkGeInit2() - Level 2 Initialization
+ *
+ * Description:
+ * - start the Blink Source Counter
+ * - start the Descriptor Poll Timer
+ * - configure the MAC-Arbiter
+ * - configure the Packet-Arbiter
+ * - enable the Tx Arbiters
+ * - enable the RAM Interface Arbiter
+ *
+ * Returns:
+ * nothing
+ */
+static void SkGeInit2(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+#ifdef GENESIS
+ SK_U32 DWord;
+#endif /* GENESIS */
+ int i;
+
+ /* start the Descriptor Poll Timer */
+ if (pAC->GIni.GIPollTimerVal != 0) {
+ if (pAC->GIni.GIPollTimerVal > SK_DPOLL_MAX) {
+ pAC->GIni.GIPollTimerVal = SK_DPOLL_MAX;
+
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E017, SKERR_HWI_E017MSG);
+ }
+ SK_OUT32(IoC, B28_DPT_INI, pAC->GIni.GIPollTimerVal);
+ SK_OUT8(IoC, B28_DPT_CTRL, DPT_START);
+ }
+
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+ /* start the Blink Source Counter */
+ DWord = SK_BLK_DUR * (SK_U32)pAC->GIni.GIHstClkFact / 100;
+
+ SK_OUT32(IoC, B2_BSC_INI, DWord);
+ SK_OUT8(IoC, B2_BSC_CTRL, BSC_START);
+
+ /*
+ * Configure the MAC Arbiter and the Packet Arbiter.
+ * They will be started once and never be stopped.
+ */
+ SkGeInitMacArb(pAC, IoC);
+
+ SkGeInitPktArb(pAC, IoC);
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+ /* start Time Stamp Timer */
+ SK_OUT8(IoC, GMAC_TI_ST_CTRL, (SK_U8)GMT_ST_START);
+ }
+#endif /* YUKON */
+
+ /* enable the Tx Arbiters */
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+ SK_OUT8(IoC, MR_ADDR(i, TXA_CTRL), TXA_ENA_ARB);
+ }
+
+ /* enable the RAM Interface Arbiter */
+ SkGeInitRamIface(pAC, IoC);
+
+} /* SkGeInit2 */
+
+/******************************************************************************
+ *
+ * SkGeInit() - Initialize the GE Adapter with the specified level.
+ *
+ * Description:
+ * Level 0: Initialize the Module structures.
+ * Level 1: Generic Hardware Initialization. The IOP/MemBase pointer has
+ * to be set before calling this level.
+ *
+ * o Do a software reset.
+ * o Clear all reset bits.
+ * o Verify that the detected hardware is present.
+ * Return an error if not.
+ * o Get the hardware configuration
+ * + Set GIMacsFound with the number of MACs.
+ * + Store the RAM size in GIRamSize.
+ * + Save the PCI Revision ID in GIPciHwRev.
+ * o return an error
+ * if Number of MACs > SK_MAX_MACS
+ *
+ * After returning from Level 0 the adapter
+ * may be accessed with IO operations.
+ *
+ * Level 2: start the Blink Source Counter
+ *
+ * Returns:
+ * 0: success
+ * 1: Number of MACs exceeds SK_MAX_MACS (after level 1)
+ * 2: Adapter not present or not accessible
+ * 3: Illegal initialization level
+ * 4: Initialization Level 1 Call missing
+ * 5: Unexpected PHY type detected
+ * 6: HW self test failed
+ */
+int SkGeInit(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Level) /* initialization level */
+{
+ int RetVal; /* return value */
+ SK_U32 DWord;
+
+ RetVal = 0;
+ SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_INIT,
+ ("SkGeInit(Level %d)\n", Level));
+
+ switch (Level) {
+ case SK_INIT_DATA:
+ /* Initialization Level 0 */
+ SkGeInit0(pAC, IoC);
+ pAC->GIni.GILevel = SK_INIT_DATA;
+ break;
+
+ case SK_INIT_IO:
+ /* Initialization Level 1 */
+ RetVal = SkGeInit1(pAC, IoC);
+ if (RetVal != 0) {
+ break;
+ }
+
+ /* check if the adapter seems to be accessible */
+ SK_OUT32(IoC, B2_IRQM_INI, SK_TEST_VAL);
+ SK_IN32(IoC, B2_IRQM_INI, &DWord);
+ SK_OUT32(IoC, B2_IRQM_INI, 0L);
+
+ if (DWord != SK_TEST_VAL) {
+ RetVal = 2;
+ break;
+ }
+
+ /* check if the number of GIMacsFound matches SK_MAX_MACS */
+ if (pAC->GIni.GIMacsFound > SK_MAX_MACS) {
+ RetVal = 1;
+ break;
+ }
+
+ /* Level 1 successfully passed */
+ pAC->GIni.GILevel = SK_INIT_IO;
+ break;
+
+ case SK_INIT_RUN:
+ /* Initialization Level 2 */
+ if (pAC->GIni.GILevel != SK_INIT_IO) {
+#ifndef SK_DIAG
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E002, SKERR_HWI_E002MSG);
+#endif /* !SK_DIAG */
+ RetVal = 4;
+ break;
+ }
+ SkGeInit2(pAC, IoC);
+
+ /* Level 2 successfully passed */
+ pAC->GIni.GILevel = SK_INIT_RUN;
+ break;
+
+ default:
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E003, SKERR_HWI_E003MSG);
+ RetVal = 3;
+ break;
+ }
+
+ return(RetVal);
+} /* SkGeInit */
+
+
+/******************************************************************************
+ *
+ * SkGeDeInit() - Deinitialize the adapter
+ *
+ * Description:
+ * All ports of the adapter will be stopped if not already done.
+ * Do a software reset and switch off all LEDs.
+ *
+ * Returns:
+ * nothing
+ */
+void SkGeDeInit(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC) /* IO context */
+{
+ int i;
+ SK_U16 Word;
+
+#if (!defined(SK_SLIM) && !defined(VCPU))
+ /* ensure I2C is ready */
+ SkI2cWaitIrq(pAC, IoC);
+#endif
+
+ /* stop all current transfer activity */
+ for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
+ if (pAC->GIni.GP[i].PState != SK_PRT_STOP &&
+ pAC->GIni.GP[i].PState != SK_PRT_RESET) {
+
+ SkGeStopPort(pAC, IoC, i, SK_STOP_ALL, SK_HARD_RST);
+ }
+ }
+
+ /* Reset all bits in the PCI STATUS register */
+ /*
+ * Note: PCI Cfg cycles cannot be used, because they are not
+ * available on some platforms after 'boot time'.
+ */
+ 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), (SK_U16)(Word | PCI_ERRBITS));
+ SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ /* do the reset, all LEDs are switched off now */
+ SK_OUT8(IoC, B0_CTST, CS_RST_SET);
+
+ pAC->GIni.GILevel = SK_INIT_DATA;
+} /* SkGeDeInit */
+
+
+/******************************************************************************
+ *
+ * SkGeInitPort() Initialize the specified port.
+ *
+ * Description:
+ * PRxQSize, PXSQSize, and PXAQSize has to be
+ * configured for the specified port before calling this function.
+ * The descriptor rings has to be initialized too.
+ *
+ * o (Re)configure queues of the specified port.
+ * o configure the MAC of the specified port.
+ * o put ASIC and MAC(s) in operational mode.
+ * o initialize Rx/Tx and Sync LED
+ * o initialize RAM Buffers and MAC FIFOs
+ *
+ * The port is ready to connect when returning.
+ *
+ * Note:
+ * The MAC's Rx and Tx state machine is still disabled when returning.
+ *
+ * Returns:
+ * 0: success
+ * 1: Queue size initialization error. The configured values
+ * for PRxQSize, PXSQSize, or PXAQSize are invalid for one
+ * or more queues. The specified port was NOT initialized.
+ * An error log entry was generated.
+ * 2: The port has to be stopped before it can be initialized again.
+ */
+int SkGeInitPort(
+SK_AC *pAC, /* adapter context */
+SK_IOC IoC, /* IO context */
+int Port) /* Port to configure */
+{
+ SK_GEPORT *pPrt;
+
+ pPrt = &pAC->GIni.GP[Port];
+
+ if (SkGeCheckQSize(pAC, Port) != 0) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E004, SKERR_HWI_E004MSG);
+ return(1);
+ }
+
+ if (pPrt->PState == SK_PRT_INIT || pPrt->PState == SK_PRT_RUN) {
+ SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_HWI_E005, SKERR_HWI_E005MSG);
+ return(2);
+ }
+
+ /* configuration ok, initialize the Port now */
+
+#ifdef GENESIS
+ if (pAC->GIni.GIGenesis) {
+ /* initialize Rx, Tx and Link LED */
+ /*
+ * If 1000BT Phy needs LED initialization than swap
+ * LED and XMAC initialization order
+ */
+ SkGeXmitLED(pAC, IoC, MR_ADDR(Port, TX_LED_INI), SK_LED_ENA);
+ SkGeXmitLED(pAC, IoC, MR_ADDR(Port, RX_LED_INI), SK_LED_ENA);
+ /* The Link LED is initialized by RLMT or Diagnostics itself */
+
+ SkXmInitMac(pAC, IoC, Port);
+ }
+#endif /* GENESIS */
+
+#ifdef YUKON
+ if (pAC->GIni.GIYukon) {
+
+ SkGmInitMac(pAC, IoC, Port);
+ }
+#endif /* YUKON */
+
+ /* do NOT initialize the Link Sync Counter */
+
+ SkGeInitMacFifo(pAC, IoC, Port);
+
+ SkGeInitRamBufs(pAC, IoC, Port);
+
+ if (pPrt->PXSQSize != 0) {
+ /* enable Force Sync bit if synchronous queue available */
+ SK_OUT8(IoC, MR_ADDR(Port, TXA_CTRL), TXA_ENA_FSYNC);
+ }
+
+ SkGeInitBmu(pAC, IoC, Port);
+
+ /* mark port as initialized */
+ pPrt->PState = SK_PRT_INIT;
+
+ return(0);
+} /* SkGeInitPort */