From 5989b8d4dc0367a8c07cd1545dbad590a6de989d Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 22 Oct 2010 11:06:56 -0400 Subject: [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 Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_attr.c | 7 ++++++- drivers/scsi/lpfc/lpfc_bsg.c | 4 ++-- drivers/scsi/lpfc/lpfc_scsi.c | 9 +++++++-- 3 files changed, 15 insertions(+), 5 deletions(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index f681eea57730..c1cbec01345d 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 f5d60b55f53a..7260c3af555a 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 3a658953486c..f64b65a770b8 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); -- cgit v1.2.3