Pull xpc-disengage into release branch
[powerpc.git] / drivers / scsi / lpfc / lpfc_sli.c
index 8d14b28..e74e224 100644 (file)
@@ -1,35 +1,34 @@
 /*******************************************************************
  * 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) 2004-2005 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"
@@ -225,8 +224,7 @@ lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
 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;
 
@@ -411,9 +409,7 @@ lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
 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) {
@@ -537,7 +533,7 @@ lpfc_sli_handle_mb_event(struct lpfc_hba * phba)
        /* 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));
@@ -905,10 +901,11 @@ static int
 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;
@@ -920,10 +917,6 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
        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.
@@ -955,7 +948,17 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 
        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_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+               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++;
@@ -987,10 +990,6 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
                                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);
@@ -1075,9 +1074,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
        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;
@@ -1089,11 +1086,6 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
        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.
@@ -1738,6 +1730,8 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
                return;
        }
 
+       phba->work_hba_events &= ~WORKER_MBOX_TMO;
+
        pmbox = phba->sli.mbox_active;
        mb = &pmbox->mb;
 
@@ -1752,16 +1746,14 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
                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);
@@ -1771,7 +1763,6 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *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;
@@ -1901,15 +1892,13 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t 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
@@ -1946,8 +1935,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
                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 */
@@ -1984,8 +1972,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 
                        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;
@@ -2009,10 +1997,9 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
                }
 
                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,
@@ -2089,8 +2076,6 @@ lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                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.
@@ -2573,6 +2558,16 @@ lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
        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);
+       list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
+       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,
@@ -2622,6 +2617,8 @@ lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                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);