From bd23e94cd70f18700fc366451a8f1427e56ed137 Mon Sep 17 00:00:00 2001 From: "Moore, Eric" Date: Mon, 17 Apr 2006 12:43:04 -0600 Subject: [SCSI] mptfusion: bug fix's for raid components adding/deleting This patch handles case where raid hidden components are not being removed when power turned off to device attached to expander, as well as the case of exposing raid components when power is turned back on to devices attached to an expander. (This is a repost of this patch, with mptsas_is_end_device declared further up in the code.) This patch contains some other miscellaneous bug fix's. Signed-off-by: Eric Moore Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/message/fusion/mptbase.c') diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 266414ca2814..ac66a658aa11 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -5741,6 +5741,7 @@ static void EventDescriptionStr(u8 event, u32 evData0, char *evStr) { char *ds; + char buf[50]; switch(event) { case MPI_EVENT_NONE: @@ -5841,7 +5842,6 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) break; case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE: { - char buf[50]; u8 id = (u8)(evData0); u8 ReasonCode = (u8)(evData0 >> 16); switch (ReasonCode) { @@ -5878,7 +5878,6 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) break; case MPI_EVENT_SAS_PHY_LINK_STATUS: { - char buf[50]; u8 LinkRates = (u8)(evData0 >> 8); u8 PhyNumber = (u8)(evData0); LinkRates = (LinkRates & MPI_EVENT_SAS_PLS_LR_CURRENT_MASK) >> @@ -5921,7 +5920,6 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) case MPI_EVENT_IR_RESYNC_UPDATE: { u8 resync_complete = (u8)(evData0 >> 16); - char buf[40]; sprintf(buf,"IR Resync Update: Complete = %d:",resync_complete); ds = buf; break; -- cgit v1.2.2 From 65207fedcf57dcb854a3ebb9da43c745106fe8d5 Mon Sep 17 00:00:00 2001 From: "Moore, Eric" Date: Fri, 21 Apr 2006 16:14:35 -0600 Subject: [SCSI] - fusion - mptfc bug fix's to prevent deadlock situations mptbase.h bump version number to 3.03.09 remove unneeded flags define workq and remove old fc specific locks mptbase.c initialize new lock and don't initialize two removed locks mptscsih.c when firmware reports target is no longer there, return DID_REQUEUE for fc hosts so that i/o doesn't get killed until the transport has an opportunity to manage the loss via its dev loss timer when the "eh_abort" routine is called, check to see if the driver has the command or not before looking to see if a reset is pending. James Smart and I talked about this and believe that the API for this routine is: if driver doesn't have command, return SUCCESS. This change helps prevent a target from being taken offline. SUCCESS is returned because it's likely that the command completed after error recovery timed it out but before it could be aborted. provide a routine to queue work to newly created workq, and use it. remove "ioc" from mptscsih_abort() it was only used one time. the other references were via hd->ioc, so I just moved it.... net change in references to ioc via hd->ioc is zero move hd->resetPending test and hd->timeouts increment to after the test for whether the command to be aborted remains known to the driver Make certain that the workq exists before queuing work to it. mptfc.c no longer need to lock rport data structures as I was able to single thread the code! I fixed up the debug code to eliminate compilation messages due to type mismatch in the printk. Got rid of some no longer needed rport flags. Initialize and destroy the workq used for the rescan work. simplify the logic regarding the increment of fc_rescan_work_count. use post increment and test for zero vs. pre increment and test for one; eliminate work_count variable: queue_work can be called with the work_lock held as it doesn't sleep Signed-off-by: Michael Reed Signed-off-by: Eric Moore Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/message/fusion/mptbase.c') diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index ac66a658aa11..5fe6e8df50ab 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1189,7 +1189,6 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) ioc->diagPending = 0; spin_lock_init(&ioc->diagLock); spin_lock_init(&ioc->fc_rescan_work_lock); - spin_lock_init(&ioc->fc_rport_lock); spin_lock_init(&ioc->initializing_hba_lock); /* Initialize the event logging. -- cgit v1.2.2 From 509e5e5d206ff7ba08011b61a882d09369ec20c3 Mon Sep 17 00:00:00 2001 From: Eric Moore Date: Wed, 26 Apr 2006 13:22:37 -0600 Subject: [SCSI] fusion - bug fix stack overflow in mptbase Bug fix for stack overflow in EventDescriptionStr, (a function for debuging firmware events). We allocated 50 bytes on local stack for buff[], however there are places in the code where we've attempted copying in greater than 50 bytes into buff[]. Signed-off-by: Eric Moore Signed-off-by: James Bottomley --- drivers/message/fusion/mptbase.c | 60 +++++++++++++++++++++++++--------------- 1 file changed, 37 insertions(+), 23 deletions(-) (limited to 'drivers/message/fusion/mptbase.c') diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 5fe6e8df50ab..9080853fe283 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -5735,12 +5735,13 @@ mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag) return rc; } +# define EVENT_DESCR_STR_SZ 100 + /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ static void EventDescriptionStr(u8 event, u32 evData0, char *evStr) { - char *ds; - char buf[50]; + char *ds = NULL; switch(event) { case MPI_EVENT_NONE: @@ -5777,9 +5778,9 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) if (evData0 == MPI_EVENT_LOOP_STATE_CHANGE_LIP) ds = "Loop State(LIP) Change"; else if (evData0 == MPI_EVENT_LOOP_STATE_CHANGE_LPE) - ds = "Loop State(LPE) Change"; /* ??? */ + ds = "Loop State(LPE) Change"; /* ??? */ else - ds = "Loop State(LPB) Change"; /* ??? */ + ds = "Loop State(LPB) Change"; /* ??? */ break; case MPI_EVENT_LOGOUT: ds = "Logout"; @@ -5845,22 +5846,28 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) u8 ReasonCode = (u8)(evData0 >> 16); switch (ReasonCode) { case MPI_EVENT_SAS_DEV_STAT_RC_ADDED: - sprintf(buf,"SAS Device Status Change: Added: id=%d", id); + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS Device Status Change: Added: id=%d", id); break; case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING: - sprintf(buf,"SAS Device Status Change: Deleted: id=%d", id); + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS Device Status Change: Deleted: id=%d", id); break; case MPI_EVENT_SAS_DEV_STAT_RC_SMART_DATA: - sprintf(buf,"SAS Device Status Change: SMART Data: id=%d", id); + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS Device Status Change: SMART Data: id=%d", + id); break; case MPI_EVENT_SAS_DEV_STAT_RC_NO_PERSIST_ADDED: - sprintf(buf,"SAS Device Status Change: No Persistancy Added: id=%d", id); + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS Device Status Change: No Persistancy " + "Added: id=%d", id); break; default: - sprintf(buf,"SAS Device Status Change: Unknown: id=%d", id); - break; + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS Device Status Change: Unknown: id=%d", id); + break; } - ds = buf; break; } case MPI_EVENT_ON_BUS_TIMER_EXPIRED: @@ -5883,34 +5890,40 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) MPI_EVENT_SAS_PLS_LR_CURRENT_SHIFT; switch (LinkRates) { case MPI_EVENT_SAS_PLS_LR_RATE_UNKNOWN: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Rate Unknown",PhyNumber); break; case MPI_EVENT_SAS_PLS_LR_RATE_PHY_DISABLED: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Phy Disabled",PhyNumber); break; case MPI_EVENT_SAS_PLS_LR_RATE_FAILED_SPEED_NEGOTIATION: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Failed Speed Nego",PhyNumber); break; case MPI_EVENT_SAS_PLS_LR_RATE_SATA_OOB_COMPLETE: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Sata OOB Completed",PhyNumber); break; case MPI_EVENT_SAS_PLS_LR_RATE_1_5: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Rate 1.5 Gbps",PhyNumber); break; case MPI_EVENT_SAS_PLS_LR_RATE_3_0: - sprintf(buf,"SAS PHY Link Status: Phy=%d:" + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d:" " Rate 3.0 Gpbs",PhyNumber); break; default: - sprintf(buf,"SAS PHY Link Status: Phy=%d", PhyNumber); + snprintf(evStr, EVENT_DESCR_STR_SZ, + "SAS PHY Link Status: Phy=%d", PhyNumber); break; } - ds = buf; break; } case MPI_EVENT_SAS_DISCOVERY_ERROR: @@ -5919,8 +5932,8 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) case MPI_EVENT_IR_RESYNC_UPDATE: { u8 resync_complete = (u8)(evData0 >> 16); - sprintf(buf,"IR Resync Update: Complete = %d:",resync_complete); - ds = buf; + snprintf(evStr, EVENT_DESCR_STR_SZ, + "IR Resync Update: Complete = %d:",resync_complete); break; } case MPI_EVENT_IR2: @@ -5973,7 +5986,8 @@ EventDescriptionStr(u8 event, u32 evData0, char *evStr) ds = "Unknown"; break; } - strcpy(evStr,ds); + if (ds) + strncpy(evStr, ds, EVENT_DESCR_STR_SZ); } /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ @@ -5995,7 +6009,7 @@ ProcessEventNotification(MPT_ADAPTER *ioc, EventNotificationReply_t *pEventReply int ii; int r = 0; int handlers = 0; - char evStr[100]; + char evStr[EVENT_DESCR_STR_SZ]; u8 event; /* -- cgit v1.2.2