/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
- * Enterprise Fibre Channel Host Bus Adapters. *
- * Refer to the README file included with this package for *
- * driver version and adapter support. *
- * Copyright (C) 2004 Emulex Corporation. *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2004-2006 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
+ * Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* 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. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details, a copy of which *
- * can be found in the file COPYING included with this package. *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
*******************************************************************/
-/*
- * $Id: lpfc_sli.c 1.232 2005/04/13 11:59:16EDT sf_support Exp $
- */
-
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
#include "lpfc_sli.h"
LPFC_ABORT_IOCB
} lpfc_iocb_type;
+struct lpfc_iocbq *
+lpfc_sli_get_iocbq(struct lpfc_hba * phba)
+{
+ struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
+ struct lpfc_iocbq * iocbq = NULL;
+
+ list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
+ return iocbq;
+}
+
+void
+lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
+{
+ size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb);
+
+ /*
+ * Clean all volatile data fields, preserve iotag and node struct.
+ */
+ memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
+ list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
+}
+
/*
* Translate the iocb command to an iocb command type used to decide the final
* disposition of each completed IOCB.
static IOCB_t *
lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
- MAILBOX_t *mbox = (MAILBOX_t *)phba->sli.MBhostaddr;
- PGP *pgp = (PGP *)&mbox->us.s2.port[pring->ringno];
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
uint32_t max_cmd_idx = pring->numCiocb;
IOCB_t *iocb = NULL;
return iocb;
}
-static uint32_t
-lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
+uint16_t
+lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
{
- uint32_t search_start;
+ struct lpfc_iocbq ** new_arr;
+ struct lpfc_iocbq ** old_arr;
+ size_t new_len;
+ struct lpfc_sli *psli = &phba->sli;
+ uint16_t iotag;
- if (pring->fast_lookup == NULL) {
- pring->iotag_ctr++;
- if (pring->iotag_ctr >= pring->iotag_max)
- pring->iotag_ctr = 1;
- return pring->iotag_ctr;
+ spin_lock_irq(phba->host->host_lock);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ else if (psli->iocbq_lookup_len < (0xffff
+ - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
+ new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
+ spin_unlock_irq(phba->host->host_lock);
+ new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *),
+ GFP_KERNEL);
+ if (new_arr) {
+ memset((char *)new_arr, 0,
+ new_len * sizeof (struct lpfc_iocbq *));
+ spin_lock_irq(phba->host->host_lock);
+ old_arr = psli->iocbq_lookup;
+ if (new_len <= psli->iocbq_lookup_len) {
+ /* highly unprobable case */
+ kfree(new_arr);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ spin_unlock_irq(phba->host->host_lock);
+ return 0;
+ }
+ if (psli->iocbq_lookup)
+ memcpy(new_arr, old_arr,
+ ((psli->last_iotag + 1) *
+ sizeof (struct lpfc_iocbq *)));
+ psli->iocbq_lookup = new_arr;
+ psli->iocbq_lookup_len = new_len;
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ kfree(old_arr);
+ return iotag;
+ }
}
- search_start = pring->iotag_ctr;
-
- do {
- pring->iotag_ctr++;
- if (pring->iotag_ctr >= pring->fast_iotag)
- pring->iotag_ctr = 1;
-
- if (*(pring->fast_lookup + pring->iotag_ctr) == NULL)
- return pring->iotag_ctr;
-
- } while (pring->iotag_ctr != search_start);
+ lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
+ "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
+ phba->brd_no, psli->last_iotag);
- /*
- * Outstanding I/O count for ring <ringno> is at max <fast_iotag>
- */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0318 Outstanding I/O count for ring %d is at max x%x\n",
- phba->brd_no,
- pring->ringno,
- pring->fast_iotag);
- return (0);
+ return 0;
}
static void
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
{
/*
- * Allocate and set up an iotag
+ * Set up an iotag
*/
- nextiocb->iocb.ulpIoTag =
- lpfc_sli_next_iotag(phba, &phba->sli.ring[phba->sli.fcp_ring]);
+ nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
/*
* Issue iocb command to adapter
*/
if (nextiocb->iocb_cmpl)
lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
- else {
- list_add_tail(&nextiocb->list, &phba->lpfc_iocb_list);
- }
+ else
+ lpfc_sli_release_iocbq(phba, nextiocb);
/*
* Let the HBA know what IOCB slot will be the next one the
* driver will put a command into.
*/
pring->cmdidx = pring->next_cmdidx;
- writeb(pring->cmdidx, phba->MBslimaddr
+ writel(pring->cmdidx, phba->MBslimaddr
+ (SLIMOFF + (pring->ringno * 2)) * 4);
}
static void
lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno)
{
- PGP *pgp =
- ((PGP *) &
- (((MAILBOX_t *)phba->sli.MBhostaddr)->us.s2.port[ringno]));
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno];
/* If the ring is active, flag it */
if (phba->sli.ring[ringno].cmdringaddr) {
case MBX_SET_MASK:
case MBX_SET_SLIM:
case MBX_UNREG_D_ID:
+ case MBX_KILL_BOARD:
case MBX_CONFIG_FARP:
+ case MBX_BEACON:
case MBX_LOAD_AREA:
case MBX_RUN_BIU_DIAG64:
case MBX_CONFIG_PORT:
/* Get a Mailbox buffer to setup mailbox commands for callback */
if ((pmb = phba->sli.mbox_active)) {
pmbox = &pmb->mb;
- mbox = (MAILBOX_t *) phba->sli.MBhostaddr;
+ mbox = &phba->slim2p->mbx;
/* First check out the status word */
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t));
}
/* unSolicited Responses */
if (pring->prt[0].profile) {
- (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq);
+ if (pring->prt[0].lpfc_sli_rcv_unsol_event)
+ (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
+ saveq);
match = 1;
} else {
/* We must search, based on rctl / type
Rctl)
&& (pring->prt[i].
type == Type)) {
- (pring->prt[i].lpfc_sli_rcv_unsol_event)
- (phba, pring, saveq);
+ if (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (phba, pring, saveq);
match = 1;
break;
}
}
static struct lpfc_iocbq *
-lpfc_sli_txcmpl_ring_search_slow(struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * prspiocb)
-{
- IOCB_t *icmd = NULL;
- IOCB_t *irsp = NULL;
- struct lpfc_iocbq *cmd_iocb;
- struct lpfc_iocbq *iocb, *next_iocb;
- uint16_t iotag;
-
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- cmd_iocb = NULL;
-
- /* Search through txcmpl from the begining */
- list_for_each_entry_safe(iocb, next_iocb, &(pring->txcmplq), list) {
- icmd = &iocb->iocb;
- if (iotag == icmd->ulpIoTag) {
- /* Found a match. */
- cmd_iocb = iocb;
- list_del(&iocb->list);
- pring->txcmplq_cnt--;
- break;
- }
- }
-
- return (cmd_iocb);
-}
-
-static struct lpfc_iocbq *
-lpfc_sli_txcmpl_ring_iotag_lookup(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * prspiocb)
+lpfc_sli_iocbq_lookup(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * prspiocb)
{
- IOCB_t *irsp = NULL;
struct lpfc_iocbq *cmd_iocb = NULL;
uint16_t iotag;
- if (unlikely(pring->fast_lookup == NULL))
- return NULL;
-
- /* Use fast lookup based on iotag for completion */
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- if (iotag < pring->fast_iotag) {
- cmd_iocb = *(pring->fast_lookup + iotag);
- *(pring->fast_lookup + iotag) = NULL;
- if (cmd_iocb) {
- list_del(&cmd_iocb->list);
- pring->txcmplq_cnt--;
- return cmd_iocb;
- } else {
- /*
- * This is clearly an error. A ring that uses iotags
- * should never have a interrupt for a completion that
- * is not on the ring. Return NULL and log a error.
- */
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "%d:0327 Rsp ring %d error - command "
- "completion for iotag x%x not found\n",
- phba->brd_no, pring->ringno, iotag);
- return NULL;
- }
+ iotag = prspiocb->iocb.ulpIoTag;
+
+ if (iotag != 0 && iotag <= phba->sli.last_iotag) {
+ cmd_iocb = phba->sli.iocbq_lookup[iotag];
+ list_del(&cmd_iocb->list);
+ pring->txcmplq_cnt--;
+ return cmd_iocb;
}
- /*
- * Rsp ring <ringno> get: iotag <iotag> greater then
- * configured max <fast_iotag> wd0 <irsp>. This is an
- * error. Just return NULL.
- */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "%d:0317 Rsp ring %d get: iotag x%x greater then "
- "configured max x%x wd0 x%x\n",
- phba->brd_no, pring->ringno, iotag, pring->fast_iotag,
- *(((uint32_t *) irsp) + 7));
+ "%d:0317 iotag x%x is out off "
+ "range: max iotag x%x wd0 x%x\n",
+ phba->brd_no, iotag,
+ phba->sli.last_iotag,
+ *(((uint32_t *) &prspiocb->iocb) + 7));
return NULL;
}
/* Based on the iotag field, get the cmd IOCB from the txcmplq */
spin_lock_irqsave(phba->host->host_lock, iflag);
- cmdiocbp = lpfc_sli_txcmpl_ring_search_slow(pring, saveq);
+ cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
/*
spin_lock_irqsave(phba->host->host_lock, iflag);
}
else {
- if (cmdiocbp->iocb_flag & LPFC_IO_POLL)
- rc = 0;
-
spin_unlock_irqrestore(phba->host->host_lock,
iflag);
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
spin_lock_irqsave(phba->host->host_lock, iflag);
}
- } else {
- list_add_tail(&cmdiocbp->list, &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, cmdiocbp);
} else {
/*
* Unknown initiating command based on the response iotag.
saveq->iocb.ulpContext);
}
}
+
spin_unlock_irqrestore(phba->host->host_lock, iflag);
return rc;
}
+static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring)
+{
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ /*
+ * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+ * rsp ring <portRspMax>
+ */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0312 Ring %d handler: portRspPut %d "
+ "is bigger then rsp ring %d\n",
+ phba->brd_no, pring->ringno,
+ le32_to_cpu(pgp->rspPutInx),
+ pring->numRiocb);
+
+ phba->hba_state = LPFC_HBA_ERROR;
+
+ /*
+ * All error attention handlers are posted to
+ * worker thread
+ */
+ phba->work_ha |= HA_ERATT;
+ phba->work_hs = HS_FFER3;
+ if (phba->work_wait)
+ wake_up(phba->work_wait);
+
+ return;
+}
+
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
+{
+ struct lpfc_sli * psli = &phba->sli;
+ struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
+ IOCB_t *irsp = NULL;
+ IOCB_t *entry = NULL;
+ struct lpfc_iocbq *cmdiocbq = NULL;
+ struct lpfc_iocbq rspiocbq;
+ struct lpfc_pgp *pgp;
+ uint32_t status;
+ uint32_t portRspPut, portRspMax;
+ int type;
+ uint32_t rsp_cmpl = 0;
+ void __iomem *to_slim;
+ uint32_t ha_copy;
+
+ pring->stats.iocb_event++;
+
+ /* The driver assumes SLI-2 mode */
+ pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+
+ /*
+ * The next available response entry should never exceed the maximum
+ * entries. If it does, treat it as an adapter hardware error.
+ */
+ portRspMax = pring->numRiocb;
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ if (unlikely(portRspPut >= portRspMax)) {
+ lpfc_sli_rsp_pointers_error(phba, pring);
+ return;
+ }
+
+ rmb();
+ while (pring->rspidx != portRspPut) {
+
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+ if (++pring->rspidx >= portRspMax)
+ pring->rspidx = 0;
+
+ lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+ (uint32_t *) &rspiocbq.iocb,
+ sizeof (IOCB_t));
+ irsp = &rspiocbq.iocb;
+ type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
+ pring->stats.iocb_rsp++;
+ rsp_cmpl++;
+
+ if (unlikely(irsp->ulpStatus)) {
+ /* Rsp ring <ringno> error: IOCB */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "%d:0326 Rsp Ring %d error: IOCB Data: "
+ "x%x x%x x%x x%x x%x x%x x%x x%x\n",
+ phba->brd_no, pring->ringno,
+ irsp->un.ulpWord[0],
+ irsp->un.ulpWord[1],
+ irsp->un.ulpWord[2],
+ irsp->un.ulpWord[3],
+ irsp->un.ulpWord[4],
+ irsp->un.ulpWord[5],
+ *(((uint32_t *) irsp) + 6),
+ *(((uint32_t *) irsp) + 7));
+ }
+
+ switch (type) {
+ case LPFC_ABORT_IOCB:
+ case LPFC_SOL_IOCB:
+ /*
+ * Idle exchange closed via ABTS from port. No iocb
+ * resources need to be recovered.
+ */
+ if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
+ printk(KERN_INFO "%s: IOCB cmd 0x%x processed."
+ " Skipping completion\n", __FUNCTION__,
+ irsp->ulpCommand);
+ break;
+ }
+
+ cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+ &rspiocbq);
+ if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ }
+ break;
+ default:
+ if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+ char adaptermsg[LPFC_MAX_ADPTMSG];
+ memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+ memcpy(&adaptermsg[0], (uint8_t *) irsp,
+ MAX_MSG_DATA);
+ dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+ phba->brd_no, adaptermsg);
+ } else {
+ /* Unknown IOCB command */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0321 Unknown IOCB command "
+ "Data: x%x, x%x x%x x%x x%x\n",
+ phba->brd_no, type,
+ irsp->ulpCommand,
+ irsp->ulpStatus,
+ irsp->ulpIoTag,
+ irsp->ulpContext);
+ }
+ break;
+ }
+
+ /*
+ * The response IOCB has been processed. Update the ring
+ * pointer in SLIM. If the port response put pointer has not
+ * been updated, sync the pgp->rspPutInx and fetch the new port
+ * response put pointer.
+ */
+ to_slim = phba->MBslimaddr +
+ (SLIMOFF + (pring->ringno * 2) + 1) * 4;
+ writeb(pring->rspidx, to_slim);
+
+ if (pring->rspidx == portRspPut)
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
+ }
+
+ ha_copy = readl(phba->HAregaddr);
+ ha_copy >>= (LPFC_FCP_RING * 4);
+
+ if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
+ pring->stats.iocb_rsp_full++;
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
+ writel(status, phba->CAregaddr);
+ readl(phba->CAregaddr);
+ }
+ if ((ha_copy & HA_R0CE_RSP) &&
+ (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+ pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+ pring->stats.iocb_cmd_empty++;
+
+ /* Force update of the local copy of cmdGetInx */
+ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+ lpfc_sli_resume_iocb(phba, pring);
+
+ if ((pring->lpfc_sli_cmd_available))
+ (pring->lpfc_sli_cmd_available) (phba, pring);
+
+ }
+
+ return;
+}
+
/*
* This routine presumes LPFC_FCP_RING handling and doesn't bother
* to check it explicitly.
lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
struct lpfc_sli_ring * pring, uint32_t mask)
{
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
IOCB_t *irsp = NULL;
+ IOCB_t *entry = NULL;
struct lpfc_iocbq *cmdiocbq = NULL;
struct lpfc_iocbq rspiocbq;
- PGP *pgp;
uint32_t status;
uint32_t portRspPut, portRspMax;
int rc = 1;
spin_lock_irqsave(phba->host->host_lock, iflag);
pring->stats.iocb_event++;
- /* The driver assumes SLI-2 mode */
- pgp = (PGP *) &((MAILBOX_t *) phba->sli.MBhostaddr)
- ->us.s2.port[pring->ringno];
-
/*
* The next available response entry should never exceed the maximum
* entries. If it does, treat it as an adapter hardware error.
portRspMax = pring->numRiocb;
portRspPut = le32_to_cpu(pgp->rspPutInx);
if (unlikely(portRspPut >= portRspMax)) {
- /*
- * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
- * rsp ring <portRspMax>
- */
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "%d:0312 Ring %d handler: portRspPut %d "
- "is bigger then rsp ring %d\n",
- phba->brd_no, pring->ringno, portRspPut,
- portRspMax);
-
- phba->hba_state = LPFC_HBA_ERROR;
-
- /* All error attention handlers are posted to worker thread */
- phba->work_ha |= HA_ERATT;
- phba->work_hs = HS_FFER3;
- if (phba->work_wait)
- wake_up(phba->work_wait);
-
+ lpfc_sli_rsp_pointers_error(phba, pring);
spin_unlock_irqrestore(phba->host->host_lock, iflag);
return 1;
}
rmb();
while (pring->rspidx != portRspPut) {
- irsp = (IOCB_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+ /*
+ * Fetch an entry off the ring and copy it into a local data
+ * structure. The copy involves a byte-swap since the
+ * network byte order and pci byte orders are different.
+ */
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+ if (++pring->rspidx >= portRspMax)
+ pring->rspidx = 0;
+
+ lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+ (uint32_t *) &rspiocbq.iocb,
+ sizeof (IOCB_t));
+ irsp = &rspiocbq.iocb;
+
type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
pring->stats.iocb_rsp++;
rsp_cmpl++;
break;
}
- rspiocbq.iocb.un.ulpWord[4] = irsp->un.ulpWord[4];
- rspiocbq.iocb.ulpStatus = irsp->ulpStatus;
- rspiocbq.iocb.ulpContext = irsp->ulpContext;
- rspiocbq.iocb.ulpIoTag = irsp->ulpIoTag;
- cmdiocbq = lpfc_sli_txcmpl_ring_iotag_lookup(phba,
- pring,
- &rspiocbq);
+ cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+ &rspiocbq);
if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
- spin_unlock_irqrestore(
- phba->host->host_lock, iflag);
- (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
- &rspiocbq);
- spin_lock_irqsave(phba->host->host_lock,
- iflag);
+ if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ } else {
+ spin_unlock_irqrestore(
+ phba->host->host_lock, iflag);
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ spin_lock_irqsave(phba->host->host_lock,
+ iflag);
+ }
}
break;
default:
* been updated, sync the pgp->rspPutInx and fetch the new port
* response put pointer.
*/
- if (++pring->rspidx >= portRspMax)
- pring->rspidx = 0;
-
to_slim = phba->MBslimaddr +
(SLIMOFF + (pring->ringno * 2) + 1) * 4;
- writeb(pring->rspidx, to_slim);
+ writel(pring->rspidx, to_slim);
if (pring->rspidx == portRspPut)
portRspPut = le32_to_cpu(pgp->rspPutInx);
struct lpfc_iocbq *next_iocb;
struct lpfc_iocbq *cmdiocbp;
struct lpfc_iocbq *saveq;
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
- HGP *hgp;
- PGP *pgp;
- MAILBOX_t *mbox;
+ struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
uint8_t iocb_cmd_type;
lpfc_iocb_type type;
uint32_t status, free_saveq;
spin_lock_irqsave(phba->host->host_lock, iflag);
pring->stats.iocb_event++;
- /* The driver assumes SLI-2 mode */
- mbox = (MAILBOX_t *) phba->sli.MBhostaddr;
- pgp = (PGP *) & mbox->us.s2.port[pring->ringno];
- hgp = (HGP *) & mbox->us.s2.host[pring->ringno];
-
/*
* The next available response entry should never exceed the maximum
* entries. If it does, treat it as an adapter hardware error.
}
rmb();
- lpfc_iocb_list = &phba->lpfc_iocb_list;
while (pring->rspidx != portRspPut) {
/*
* Build a completion list and call the appropriate handler.
* received.
*/
entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
- list_remove_head(lpfc_iocb_list, rspiocbp, struct lpfc_iocbq,
- list);
+ rspiocbp = lpfc_sli_get_iocbq(phba);
if (rspiocbp == NULL) {
printk(KERN_ERR "%s: out of buffers! Failing "
"completion.\n", __FUNCTION__);
to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2)
+ 1) * 4;
- writeb(pring->rspidx, to_slim);
+ writel(pring->rspidx, to_slim);
if (list_empty(&(pring->iocb_continueq))) {
list_add(&rspiocbp->list, &(pring->iocb_continueq));
} else if (type == LPFC_ABORT_IOCB) {
if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
((cmdiocbp =
- lpfc_sli_txcmpl_ring_search_slow(pring,
- saveq)))) {
+ lpfc_sli_iocbq_lookup(phba, pring,
+ saveq)))) {
/* Call the specified completion
routine */
if (cmdiocbp->iocb_cmpl) {
spin_lock_irqsave(
phba->host->host_lock,
iflag);
- } else {
- list_add_tail(&cmdiocbp->list,
- lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba,
+ cmdiocbp);
}
} else if (type == LPFC_UNKNOWN_IOCB) {
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
next_iocb,
&saveq->list,
list) {
- list_add_tail(&rspiocbp->list,
- lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba,
+ rspiocbp);
}
}
- list_add_tail(&saveq->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, saveq);
}
}
struct lpfc_iocbq *iocb, *next_iocb;
IOCB_t *icmd = NULL, *cmd = NULL;
int errcnt;
- uint16_t iotag;
errcnt = 0;
spin_unlock_irq(phba->host->host_lock);
(iocb->iocb_cmpl) (phba, iocb, iocb);
spin_lock_irq(phba->host->host_lock);
- } else {
- list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
+ }
+ pring->txq_cnt = 0;
+ INIT_LIST_HEAD(&(pring->txq));
+
+ /* Next issue ABTS for everything on the txcmplq */
+ list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
+ cmd = &iocb->iocb;
+
+ /*
+ * Imediate abort of IOCB, deque and call compl
+ */
+
+ list_del_init(&iocb->list);
+ pring->txcmplq_cnt--;
+
+ if (iocb->iocb_cmpl) {
+ cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
+ cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
+ spin_unlock_irq(phba->host->host_lock);
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ spin_lock_irq(phba->host->host_lock);
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
+ }
+
+ INIT_LIST_HEAD(&pring->txcmplq);
+ pring->txcmplq_cnt = 0;
+ spin_unlock_irq(phba->host->host_lock);
+
+ return errcnt;
+}
+
+int
+lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
+{
+ uint32_t status;
+ int i = 0;
+ int retval = 0;
+
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
+
+ /*
+ * Check status register every 100ms for 5 retries, then every
+ * 500ms for 5, then every 2.5 sec for 5, then reset board and
+ * every 2.5 sec for 4.
+ * Break our of the loop if errors occurred during init.
+ */
+ while (((status & mask) != mask) &&
+ !(status & HS_FFERM) &&
+ i++ < 20) {
+
+ if (i <= 5)
+ msleep(10);
+ else if (i <= 10)
+ msleep(500);
+ else
+ msleep(2500);
+
+ if (i == 15) {
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
}
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
+ }
+
+ /* Check to see if any errors occurred during init */
+ if ((status & HS_FFERM) || (i >= 20)) {
+ phba->hba_state = LPFC_HBA_ERROR;
+ retval = 1;
+ }
+
+ return retval;
+}
+
+#define BARRIER_TEST_PATTERN (0xdeadbeef)
+
+void lpfc_reset_barrier(struct lpfc_hba * phba)
+{
+ uint32_t * resp_buf;
+ uint32_t * mbox_buf;
+ volatile uint32_t mbox;
+ uint32_t hc_copy;
+ int i;
+ uint8_t hdrtype;
+
+ pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
+ if (hdrtype != 0x80 ||
+ (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
+ FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
+ return;
+
+ /*
+ * Tell the other part of the chip to suspend temporarily all
+ * its DMA activity.
+ */
+ resp_buf = (uint32_t *)phba->MBslimaddr;
+
+ /* Disable the error attention */
+ hc_copy = readl(phba->HCregaddr);
+ writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ /* Clear Chip error bit */
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+
+ mbox = 0;
+ ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
+
+ writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
+ mbox_buf = (uint32_t *)phba->MBslimaddr;
+ writel(mbox, mbox_buf);
+
+ for (i = 0;
+ readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
+ mdelay(1);
+
+ if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
+ if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
+ phba->stopped)
+ goto restore_hc;
+ else
+ goto clear_errat;
+ }
+
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
+ for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
+ mdelay(1);
+
+clear_errat:
+
+ while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
+ mdelay(1);
+
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+
+restore_hc:
+ writel(hc_copy, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+}
+
+int
+lpfc_sli_brdkill(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *pmb;
+ uint32_t status;
+ uint32_t ha_copy;
+ int retval;
+ int i = 0;
+
+ psli = &phba->sli;
+
+ /* Kill HBA */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_SLI,
+ "%d:0329 Kill HBA Data: x%x x%x\n",
+ phba->brd_no,
+ phba->hba_state,
+ psli->sli_flag);
+
+ if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL)) == 0)
+ return 1;
+
+ /* Disable the error attention */
+ spin_lock_irq(phba->host->host_lock);
+ status = readl(phba->HCregaddr);
+ status &= ~HC_ERINT_ENA;
+ writel(status, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(phba->host->host_lock);
+
+ lpfc_kill_board(phba, pmb);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+ if (retval != MBX_SUCCESS) {
+ if (retval != MBX_BUSY)
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return 1;
}
- pring->txq_cnt = 0;
- INIT_LIST_HEAD(&(pring->txq));
- /* Next issue ABTS for everything on the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
- /*
- * Imediate abort of IOCB, clear fast_lookup entry,
- * if any, deque and call compl
- */
- iotag = cmd->ulpIoTag;
- if (iotag && pring->fast_lookup &&
- (iotag < pring->fast_iotag))
- pring->fast_lookup[iotag] = NULL;
+ mempool_free(pmb, phba->mbox_mem_pool);
- list_del_init(&iocb->list);
- pring->txcmplq_cnt--;
+ /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
+ * attention every 100ms for 3 seconds. If we don't get ERATT after
+ * 3 seconds we still set HBA_ERROR state because the status of the
+ * board is now undefined.
+ */
+ ha_copy = readl(phba->HAregaddr);
- if (iocb->iocb_cmpl) {
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- spin_unlock_irq(phba->host->host_lock);
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- spin_lock_irq(phba->host->host_lock);
- } else {
- list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
- }
+ while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
+ mdelay(100);
+ ha_copy = readl(phba->HAregaddr);
}
- INIT_LIST_HEAD(&pring->txcmplq);
- pring->txcmplq_cnt = 0;
+ del_timer_sync(&psli->mbox_tmo);
+ if (ha_copy & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+ spin_lock_irq(phba->host->host_lock);
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
- return errcnt;
+ psli->mbox_active = NULL;
+ lpfc_hba_down_post(phba);
+ phba->hba_state = LPFC_HBA_ERROR;
+
+ return (ha_copy & HA_ERATT ? 0 : 1);
}
-/******************************************************************************
-* lpfc_sli_send_reset
-*
-* Note: After returning from this function, the HBA cannot be accessed for
-* 1 ms. Since we do not wish to delay in interrupt context, it is the
-* responsibility of the caller to perform the mdelay(1) and flush via readl().
-******************************************************************************/
-static int
-lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post)
+int
+lpfc_sli_brdreset(struct lpfc_hba * phba)
{
- MAILBOX_t *swpmb;
- volatile uint32_t word0;
- void __iomem *to_slim;
- unsigned long flags = 0;
-
- spin_lock_irqsave(phba->host->host_lock, flags);
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+ uint16_t cfg_value;
+ int i;
- /* A board reset must use REAL SLIM. */
- phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
+ psli = &phba->sli;
- word0 = 0;
- swpmb = (MAILBOX_t *) & word0;
- swpmb->mbxCommand = MBX_RESTART;
- swpmb->mbxHc = 1;
+ /* Reset HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
- to_slim = phba->MBslimaddr;
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
+ /* perform board reset */
+ phba->fc_eventTag = 0;
+ phba->fc_myDID = 0;
+ phba->fc_prevDID = 0;
- /* Only skip post after fc_ffinit is completed */
- if (skip_post) {
- word0 = 1; /* This is really setting up word1 */
- } else {
- word0 = 0; /* This is really setting up word1 */
- }
- to_slim = phba->MBslimaddr + sizeof (uint32_t);
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
+ psli->sli_flag = 0;
/* Turn off parity checking and serr during the physical reset */
- pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value);
+ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
pci_write_config_word(phba->pcidev, PCI_COMMAND,
- (phba->pci_cfg_value &
+ (cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ /* Now toggle INITFF bit in the Host Control Register */
writel(HC_INITFF, phba->HCregaddr);
-
- phba->hba_state = LPFC_INIT_START;
- spin_unlock_irqrestore(phba->host->host_lock, flags);
-
- return 0;
-}
-
-static int
-lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post)
-{
- struct lpfc_sli_ring *pring;
- int i;
- struct lpfc_dmabuf *mp, *next_mp;
- unsigned long flags = 0;
-
- lpfc_sli_send_reset(phba, skip_post);
mdelay(1);
-
- spin_lock_irqsave(phba->host->host_lock, flags);
- /* Risk the write on flush case ie no delay after the readl */
readl(phba->HCregaddr); /* flush */
- /* Now toggle INITFF bit set by lpfc_sli_send_reset */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Restore PCI cmd register */
- pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value);
-
- /* perform board reset */
- phba->fc_eventTag = 0;
- phba->fc_myDID = 0;
- phba->fc_prevDID = Mask_DID;
-
- /* Reset HBA */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_SLI,
- "%d:0325 Reset HBA Data: x%x x%x x%x\n",
- phba->brd_no,
- phba->hba_state,
- phba->sli.sli_flag,
- skip_post);
+ pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
/* Initialize relevant SLI info */
- for (i = 0; i < phba->sli.num_rings; i++) {
- pring = &phba->sli.ring[i];
+ for (i = 0; i < psli->num_rings; i++) {
+ pring = &psli->ring[i];
pring->flag = 0;
pring->rspidx = 0;
pring->next_cmdidx = 0;
pring->cmdidx = 0;
pring->missbufcnt = 0;
}
- spin_unlock_irqrestore(phba->host->host_lock, flags);
- if (skip_post) {
- mdelay(100);
+ phba->hba_state = LPFC_WARM_START;
+ return 0;
+}
+
+int
+lpfc_sli_brdrestart(struct lpfc_hba * phba)
+{
+ MAILBOX_t *mb;
+ struct lpfc_sli *psli;
+ uint16_t skip_post;
+ volatile uint32_t word0;
+ void __iomem *to_slim;
+
+ spin_lock_irq(phba->host->host_lock);
+
+ psli = &phba->sli;
+
+ /* Restart HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
+
+ word0 = 0;
+ mb = (MAILBOX_t *) &word0;
+ mb->mbxCommand = MBX_RESTART;
+ mb->mbxHc = 1;
+
+ lpfc_reset_barrier(phba);
+
+ to_slim = phba->MBslimaddr;
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
+
+ /* Only skip post after fc_ffinit is completed */
+ if (phba->hba_state) {
+ skip_post = 1;
+ word0 = 1; /* This is really setting up word1 */
} else {
- mdelay(2000);
+ skip_post = 0;
+ word0 = 0; /* This is really setting up word1 */
}
+ to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t);
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
- spin_lock_irqsave(phba->host->host_lock, flags);
- /* Cleanup preposted buffers on the ELS ring */
- pring = &phba->sli.ring[LPFC_ELS_RING];
- list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
- list_del(&mp->list);
- pring->postbufq_cnt--;
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- spin_unlock_irqrestore(phba->host->host_lock, flags);
+ lpfc_sli_brdreset(phba);
+ phba->stopped = 0;
+ phba->hba_state = LPFC_INIT_START;
+
+ spin_unlock_irq(phba->host->host_lock);
+
+ if (skip_post)
+ mdelay(100);
+ else
+ mdelay(2000);
- for (i = 0; i < phba->sli.num_rings; i++)
- lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]);
+ lpfc_hba_down_post(phba);
return 0;
}
}
if (i == 15) {
- lpfc_sli_brdreset(phba, 0);
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
}
/* Read the HBA Host Status Register */
status = readl(phba->HSregaddr);
}
while (resetcount < 2 && !done) {
- phba->hba_state = 0;
- lpfc_sli_brdreset(phba, 0);
+ phba->hba_state = LPFC_STATE_UNKNOWN;
+ lpfc_sli_brdrestart(phba);
msleep(2500);
rc = lpfc_sli_chipset_init(phba);
if (rc)
return;
}
+ phba->work_hba_events &= ~WORKER_MBOX_TMO;
+
pmbox = phba->sli.mbox_active;
mb = &pmbox->mb;
phba->sli.sli_flag,
phba->sli.mbox_active);
- if (phba->sli.mbox_active == pmbox) {
- phba->sli.mbox_active = NULL;
- if (pmbox->mbox_cmpl) {
- mb->mbxStatus = MBX_NOT_FINISHED;
- spin_unlock_irq(phba->host->host_lock);
- (pmbox->mbox_cmpl) (phba, pmbox);
- spin_lock_irq(phba->host->host_lock);
- }
- phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ if (pmbox->mbox_cmpl) {
+ mb->mbxStatus = MBX_NOT_FINISHED;
+ spin_unlock_irq(phba->host->host_lock);
+ (pmbox->mbox_cmpl) (phba, pmbox);
+ spin_lock_irq(phba->host->host_lock);
}
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
lpfc_mbox_abort(phba);
int
lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
{
- MAILBOX_t *mbox;
MAILBOX_t *mb;
struct lpfc_sli *psli;
uint32_t status, evtctr;
mb = &pmbox->mb;
status = MBX_SUCCESS;
+ if (phba->hba_state == LPFC_HBA_ERROR) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+
+ /* Mbox command <mbxCommand> cannot issue */
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
+ if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
+ !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
/* Polling for a mbox command when another one is already active
* is not allowed in SLI. Also, the driver must have established
/* If we are not polling, we MUST be in SLI2 mode */
if (flag != MBX_POLL) {
- if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
+ if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
+ (mb->mbxCommand != MBX_KILL_BOARD)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(phba->host->host_lock,
drvr_flag);
mb->mbxOwner = OWN_CHIP;
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
-
/* First copy command data to host SLIM area */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- lpfc_sli_pcimem_bcopy(mb, mbox, MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
} else {
if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* copy command data into host mbox for cmpl */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- lpfc_sli_pcimem_bcopy(mb, mbox, MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
+ MAILBOX_CMD_SIZE);
}
/* First copy mbox command data to HBA SLIM, skip past first
psli->mbox_active = NULL;
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* First read mbox status word */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- word0 = *((volatile uint32_t *)mbox);
+ word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
word0 = le32_to_cpu(word0);
} else {
/* First read mbox status word */
ha_copy = readl(phba->HAregaddr);
/* Wait for command to complete */
- while (((word0 & OWN_CHIP) == OWN_CHIP)
- || !(ha_copy & HA_MBATT)) {
+ while (((word0 & OWN_CHIP) == OWN_CHIP) ||
+ (!(ha_copy & HA_MBATT) &&
+ (phba->hba_state > LPFC_WARM_START))) {
if (i++ >= 100) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(phba->host->host_lock,
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
/* First copy command data */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
- word0 = *((volatile uint32_t *)mbox);
+ word0 = *((volatile uint32_t *)
+ &phba->slim2p->mbx);
word0 = le32_to_cpu(word0);
if (mb->mbxCommand == MBX_CONFIG_PORT) {
MAILBOX_t *slimmb;
}
if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
- /* First copy command data */
- mbox = (MAILBOX_t *) psli->MBhostaddr;
/* copy results back to user */
- lpfc_sli_pcimem_bcopy(mbox, mb, MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
+ MAILBOX_CMD_SIZE);
} else {
/* First copy command data */
lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
switch (piocb->iocb.ulpCommand) {
case CMD_QUE_RING_BUF_CN:
case CMD_QUE_RING_BUF64_CN:
- case CMD_CLOSE_XRI_CN:
- case CMD_ABORT_XRI_CN:
/*
* For IOCBs, like QUE_RING_BUF, that have no rsp ring
* completion, iocb_cmpl MUST be 0.
!(phba->sli.sli_flag & LPFC_PROCESS_LA)))
goto iocb_busy;
- /*
- * Check to see if this is a high priority command.
- * If so bypass tx queue processing.
- */
- if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) &&
- (iocb = lpfc_sli_next_iocb_slot(phba, pring)))) {
- lpfc_sli_submit_iocb(phba, pring, iocb, piocb);
- piocb = NULL;
- }
-
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
(nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
return IOCB_BUSY;
}
+static int
+lpfc_extra_ring_setup( struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+
+ psli = &phba->sli;
+
+ /* Adjust cmd/rsp ring iocb entries more evenly */
+ pring = &psli->ring[psli->fcp_ring];
+ pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ pring = &psli->ring[1];
+ pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ /* Setup default profile for this ring */
+ pring->iotag_max = 4096;
+ pring->num_mask = 1;
+ pring->prt[0].profile = 0; /* Mask 0 */
+ pring->prt[0].rctl = FC_UNSOL_DATA;
+ pring->prt[0].type = 5;
+ pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
+ return 0;
+}
+
int
lpfc_sli_setup(struct lpfc_hba *phba)
{
psli->next_ring = LPFC_FCP_NEXT_RING;
psli->ip_ring = LPFC_IP_RING;
+ psli->iocbq_lookup = NULL;
+ psli->iocbq_lookup_len = 0;
+ psli->last_iotag = 0;
+
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
switch (i) {
"SLI2 SLIM Data: x%x x%x\n",
phba->brd_no, totiocb, MAX_SLI2_IOCB);
}
+ if (phba->cfg_multi_ring_support == 2)
+ lpfc_extra_ring_setup(phba);
return 0;
}
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
- int i, cnt;
+ int i;
psli = &phba->sli;
spin_lock_irq(phba->host->host_lock);
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
INIT_LIST_HEAD(&pring->postbufq);
- cnt = pring->fast_iotag;
- spin_unlock_irq(phba->host->host_lock);
- if (cnt) {
- pring->fast_lookup =
- kmalloc(cnt * sizeof (struct lpfc_iocbq *),
- GFP_KERNEL);
- if (pring->fast_lookup == 0) {
- return (0);
- }
- memset((char *)pring->fast_lookup, 0,
- cnt * sizeof (struct lpfc_iocbq *));
- }
- spin_lock_irq(phba->host->host_lock);
}
spin_unlock_irq(phba->host->host_lock);
return (1);
flags);
(iocb->iocb_cmpl) (phba, iocb, iocb);
spin_lock_irqsave(phba->host->host_lock, flags);
- } else {
- list_add_tail(&iocb->list,
- &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
INIT_LIST_HEAD(&(pring->txq));
- if (pring->fast_lookup) {
- kfree(pring->fast_lookup);
- pring->fast_lookup = NULL;
- }
-
+ kfree(pring->fast_lookup);
+ pring->fast_lookup = NULL;
}
spin_unlock_irqrestore(phba->host->host_lock, flags);
spin_unlock_irqrestore(phba->host->host_lock, flags);
- /*
- * Provided the hba is not in an error state, reset it. It is not
- * capable of IO anymore.
- */
- if (phba->hba_state != LPFC_HBA_ERROR) {
- phba->hba_state = LPFC_INIT_START;
- lpfc_sli_brdreset(phba, 1);
- }
-
return 1;
}
kfree(buf_ptr);
}
- list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
struct lpfc_sli_ring * pring,
struct lpfc_iocbq * cmdiocb)
{
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
- struct lpfc_iocbq *abtsiocbp = NULL;
+ struct lpfc_iocbq *abtsiocbp;
IOCB_t *icmd = NULL;
IOCB_t *iabt = NULL;
/* issue ABTS for this IOCB based on iotag */
- list_remove_head(lpfc_iocb_list, abtsiocbp, struct lpfc_iocbq, list);
+ abtsiocbp = lpfc_sli_get_iocbq(phba);
if (abtsiocbp == NULL)
return 0;
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
iabt = &abtsiocbp->iocb;
icmd = &cmdiocb->iocb;
abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl;
break;
default:
- list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
return 0;
}
iabt->ulpCommand = CMD_ABORT_MXRI64_CN;
if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) {
- list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
return 0;
}
}
static int
-lpfc_sli_validate_iocb_cmd(struct lpfc_scsi_buf *lpfc_cmd, uint16_t tgt_id,
- uint64_t lun_id, struct lpfc_iocbq *iocb,
- uint32_t ctx, lpfc_ctx_cmd ctx_cmd)
+lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id,
+ uint64_t lun_id, uint32_t ctx,
+ lpfc_ctx_cmd ctx_cmd)
{
+ struct lpfc_scsi_buf *lpfc_cmd;
+ struct scsi_cmnd *cmnd;
int rc = 1;
- if (lpfc_cmd == NULL)
+ if (!(iocbq->iocb_flag & LPFC_IO_FCP))
+ return rc;
+
+ lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
+ cmnd = lpfc_cmd->pCmd;
+
+ if (cmnd == NULL)
return rc;
switch (ctx_cmd) {
case LPFC_CTX_LUN:
- if ((lpfc_cmd->pCmd->device->id == tgt_id) &&
- (lpfc_cmd->pCmd->device->lun == lun_id))
+ if ((cmnd->device->id == tgt_id) &&
+ (cmnd->device->lun == lun_id))
rc = 0;
break;
case LPFC_CTX_TGT:
- if (lpfc_cmd->pCmd->device->id == tgt_id)
+ if (cmnd->device->id == tgt_id)
rc = 0;
break;
case LPFC_CTX_CTX:
- if (iocb->iocb.ulpContext == ctx)
+ if (iocbq->iocb.ulpContext == ctx)
rc = 0;
+ break;
case LPFC_CTX_HOST:
rc = 0;
break;
lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd)
{
- struct lpfc_iocbq *iocb, *next_iocb;
- IOCB_t *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int sum = 0, ret_val = 0;
-
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
+ struct lpfc_iocbq *iocbq;
+ int sum, i;
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
- NULL, 0, ctx_cmd);
- if (ret_val != 0)
- continue;
- sum++;
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, ctx_cmd) == 0)
+ sum++;
}
+
return sum;
}
+void
+lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
+ struct lpfc_iocbq * rspiocb)
+{
+ spin_lock_irq(phba->host->host_lock);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
+ spin_unlock_irq(phba->host->host_lock);
+ return;
+}
+
int
lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, uint32_t ctx,
lpfc_ctx_cmd abort_cmd)
{
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocb = NULL;
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
+ struct lpfc_iocbq *iocbq;
+ struct lpfc_iocbq *abtsiocb;
IOCB_t *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
int errcnt = 0, ret_val = 0;
+ int i;
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ for (i = 1; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
- iocb, ctx, abort_cmd);
- if (ret_val != 0)
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, abort_cmd) != 0)
continue;
/* issue ABTS for this IOCB based on iotag */
- list_remove_head(lpfc_iocb_list, abtsiocb, struct lpfc_iocbq,
- list);
+ abtsiocb = lpfc_sli_get_iocbq(phba);
if (abtsiocb == NULL) {
errcnt++;
continue;
}
- memset(abtsiocb, 0, sizeof (struct lpfc_iocbq));
+ cmd = &iocbq->iocb;
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
else
abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
+ /* Setup callback routine and issue the command. */
+ abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
if (ret_val == IOCB_ERROR) {
- list_add_tail(&abtsiocb->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocb);
errcnt++;
continue;
}
return errcnt;
}
-void
-lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba,
- struct lpfc_iocbq * queue1,
- struct lpfc_iocbq * queue2)
+static void
+lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
+ struct lpfc_iocbq *cmdiocbq,
+ struct lpfc_iocbq *rspiocbq)
{
- if (queue1->context2 && queue2)
- memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
+ wait_queue_head_t *pdone_q;
+ unsigned long iflags;
- /* The waiter is looking for LPFC_IO_HIPRI bit to be set
- as a signal to wake up */
- queue1->iocb_flag |= LPFC_IO_HIPRI;
+ spin_lock_irqsave(phba->host->host_lock, iflags);
+ cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
+ if (cmdiocbq->context2 && rspiocbq)
+ memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
+ &rspiocbq->iocb, sizeof(IOCB_t));
+
+ pdone_q = cmdiocbq->context_un.wait_queue;
+ spin_unlock_irqrestore(phba->host->host_lock, iflags);
+ if (pdone_q)
+ wake_up(pdone_q);
return;
}
+/*
+ * Issue the caller's iocb and wait for its completion, but no longer than the
+ * caller's timeout. Note that iocb_flags is cleared before the
+ * lpfc_sli_issue_call since the wake routine sets a unique value and by
+ * definition this is a wait function.
+ */
int
-lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * piocb,
- uint32_t flag,
- struct lpfc_iocbq * prspiocbq,
- uint32_t timeout)
+lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * piocb,
+ struct lpfc_iocbq * prspiocbq,
+ uint32_t timeout)
{
- int j, delay_time, retval = IOCB_ERROR;
-
- /* The caller must left context1 empty. */
- if (piocb->context_un.hipri_wait_queue != 0) {
- return IOCB_ERROR;
- }
+ DECLARE_WAIT_QUEUE_HEAD(done_q);
+ long timeleft, timeout_req = 0;
+ int retval = IOCB_SUCCESS;
+ uint32_t creg_val;
/*
- * If the caller has provided a response iocbq buffer, context2 must
- * be NULL or its an error.
+ * If the caller has provided a response iocbq buffer, then context2
+ * is NULL or its an error.
*/
- if (prspiocbq && piocb->context2) {
- return IOCB_ERROR;
+ if (prspiocbq) {
+ if (piocb->context2)
+ return IOCB_ERROR;
+ piocb->context2 = prspiocbq;
}
- piocb->context2 = prspiocbq;
+ piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
+ piocb->context_un.wait_queue = &done_q;
+ piocb->iocb_flag &= ~LPFC_IO_WAKE;
- /* Setup callback routine and issue the command. */
- piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority;
- retval = lpfc_sli_issue_iocb(phba, pring, piocb,
- flag | SLI_IOCB_HIGH_PRIORITY);
- if (retval != IOCB_SUCCESS) {
- piocb->context2 = NULL;
- return IOCB_ERROR;
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ creg_val = readl(phba->HCregaddr);
+ creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+ writel(creg_val, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
}
- /*
- * This high-priority iocb was sent out-of-band. Poll for its
- * completion rather than wait for a signal. Note that the host_lock
- * is held by the midlayer and must be released here to allow the
- * interrupt handlers to complete the IO and signal this routine via
- * the iocb_flag.
- * Also, the delay_time is computed to be one second longer than
- * the scsi command timeout to give the FW time to abort on
- * timeout rather than the driver just giving up. Typically,
- * the midlayer does not specify a time for this command so the
- * driver is free to enforce its own timeout.
- */
+ retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
+ if (retval == IOCB_SUCCESS) {
+ timeout_req = timeout * HZ;
+ spin_unlock_irq(phba->host->host_lock);
+ timeleft = wait_event_timeout(done_q,
+ piocb->iocb_flag & LPFC_IO_WAKE,
+ timeout_req);
+ spin_lock_irq(phba->host->host_lock);
- delay_time = ((timeout + 1) * 1000) >> 6;
- retval = IOCB_ERROR;
- spin_unlock_irq(phba->host->host_lock);
- for (j = 0; j < 64; j++) {
- msleep(delay_time);
- if (piocb->iocb_flag & LPFC_IO_HIPRI) {
- piocb->iocb_flag &= ~LPFC_IO_HIPRI;
- retval = IOCB_SUCCESS;
- break;
+ if (timeleft == 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0329 IOCB wait timeout error - no "
+ "wake response Data x%x\n",
+ phba->brd_no, timeout);
+ retval = IOCB_TIMEDOUT;
+ } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0330 IOCB wake NOT set, "
+ "Data x%x x%lx\n", phba->brd_no,
+ timeout, (timeleft / jiffies));
+ retval = IOCB_TIMEDOUT;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0331 IOCB wake signaled\n",
+ phba->brd_no);
}
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0332 IOCB wait issue failed, Data x%x\n",
+ phba->brd_no, retval);
+ retval = IOCB_ERROR;
}
- spin_lock_irq(phba->host->host_lock);
- piocb->context2 = NULL;
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ creg_val = readl(phba->HCregaddr);
+ creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+ writel(creg_val, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ }
+
+ if (prspiocbq)
+ piocb->context2 = NULL;
+
+ piocb->context_un.wait_queue = NULL;
+ piocb->iocb_cmpl = NULL;
return retval;
}
+
int
lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
uint32_t timeout)
pmboxq->context1 = NULL;
/* if schedule_timeout returns 0, we timed out and were not
woken up */
- if (timeleft == 0) {
+ if ((timeleft == 0) || signal_pending(current))
retval = MBX_TIMEOUT;
- } else {
+ else
retval = MBX_SUCCESS;
- }
}
/* Clear Chip error bit */
writel(HA_ERATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
-
- /*
- * Reseting the HBA is the only reliable way
- * to shutdown interrupt when there is a
- * ERROR.
- */
- lpfc_sli_send_reset(phba, phba->hba_state);
+ phba->stopped = 1;
}
spin_lock(phba->host->host_lock);
git://git.onelab.eu / linux-2.6.git / blobdiff