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authorJames Smart <james.smart@emulex.com>2010-10-22 11:06:56 -0400
committerJames Bottomley <James.Bottomley@suse.de>2010-10-26 10:42:27 -0500
commit5989b8d4dc0367a8c07cd1545dbad590a6de989d (patch)
treebb74cf25232c61538a499e7a5d5624a54a0b67a8
parent5af5eee7ca4051d8ca31edeb5216831da9625b5c (diff)
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[SCSI] lpfc 8.3.18: Fix critical errors
Fix critical errors - Update send_scsi_event to validate pnode pointer active before copying the wwpn information. - Add a message, mailbox_idle, and unlock before failing SECURITY_MGMT or AUTH_PORT mailbox commands - Prevent spin_lock_irqsave from being called twice in a row. Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c7
-rw-r--r--drivers/scsi/lpfc/lpfc_bsg.c4
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c9
3 files changed, 15 insertions, 5 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index f681eea5773..c1cbec01345 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3789,8 +3789,13 @@ sysfs_mbox_read(struct file *filp, struct kobject *kobj,
break;
case MBX_SECURITY_MGMT:
case MBX_AUTH_PORT:
- if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
+ if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
+ printk(KERN_WARNING "mbox_read:Command 0x%x "
+ "is not permitted\n", pmb->mbxCommand);
+ sysfs_mbox_idle(phba);
+ spin_unlock_irq(&phba->hbalock);
return -EPERM;
+ }
break;
case MBX_READ_SPARM64:
case MBX_READ_LA:
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index f5d60b55f53..7260c3af555 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -3142,12 +3142,12 @@ lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
job = menlo->set_job;
job->dd_data = NULL; /* so timeout handler does not reply */
- spin_lock_irqsave(&phba->hbalock, flags);
+ spin_lock(&phba->hbalock);
cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
if (cmdiocbq->context2 && rspiocbq)
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
&rspiocbq->iocb, sizeof(IOCB_t));
- spin_unlock_irqrestore(&phba->hbalock, flags);
+ spin_unlock(&phba->hbalock);
bmp = menlo->bmp;
rspiocbq = menlo->rspiocbq;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 3a658953486..f64b65a770b 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -169,6 +169,7 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
spin_lock_irqsave(shost->host_lock, flags);
if (!vport->stat_data_enabled ||
vport->stat_data_blocked ||
+ !pnode ||
!pnode->lat_data ||
(phba->bucket_type == LPFC_NO_BUCKET)) {
spin_unlock_irqrestore(shost->host_lock, flags);
@@ -2040,6 +2041,9 @@ lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode;
unsigned long flags;
+ if (!pnode || !NLP_CHK_NODE_ACT(pnode))
+ return;
+
/* If there is queuefull or busy condition send a scsi event */
if ((cmnd->result == SAM_STAT_TASK_SET_FULL) ||
(cmnd->result == SAM_STAT_BUSY)) {
@@ -3226,10 +3230,11 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
struct lpfc_scsi_buf *lpfc_cmd;
struct lpfc_iocbq *iocbq;
struct lpfc_iocbq *iocbqrsp;
+ struct lpfc_nodelist *pnode = rdata->pnode;
int ret;
int status;
- if (!rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode))
+ if (!pnode || !NLP_CHK_NODE_ACT(pnode))
return FAILED;
lpfc_cmd = lpfc_get_scsi_buf(phba);
@@ -3256,7 +3261,7 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
"0702 Issue %s to TGT %d LUN %d "
"rpi x%x nlp_flag x%x\n",
lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id,
- rdata->pnode->nlp_rpi, rdata->pnode->nlp_flag);
+ pnode->nlp_rpi, pnode->nlp_flag);
status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING,
iocbq, iocbqrsp, lpfc_cmd->timeout);