Commit Graph

54 Commits

Author SHA1 Message Date
Giridhar Malavali 2e26426917 [SCSI] qla2xxx: Corrected the display of firmware dump availability for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:55:04 +04:00
Chad Dupuis cfb0919c12 [SCSI] qla2xxx: Update to dynamic logging.
This patch contains minor fixes to our new logging infrastructure:

- Remove extranous messages.
- Re-add 'nexus' and 'hdl' information.
- Adjusted the message ids to fill up the holes.
- Display FCP_CMND priority on update.
- Log only mail box error conditions.
- Do not print "Firmware ready **** FAILED ****" if cable is unplugged.
- Drop noisy 'fw_state...curr time...' message.
- Correct nexus display during abort.
- Add a special case error-logging set to '1'.
- Catagorize I/O exception display handling.
- Correct the bsg msg code printing.
- Dont use dynamic logging after host is removed.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:55:02 +04:00
Joe Perches d8424f68c0 [SCSI] qla2xxx: Make the logging functions verify their arguments and fixed the current broken uses as appropriate.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-15 10:55:02 +04:00
Giridhar Malavali 6315491698 [SCSI] qla2xxx: Disable generating pause frames when firmware hang detected for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-12 14:08:58 +04:00
Giridhar Malavali 8937f2f1c4 [SCSI] qla2xxx: Clear mailbox busy flag during premature mailbox completion for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-12 14:08:15 +04:00
Chad Dupuis c8f6544e6d [SCSI] qla2xxx: Encapsulate prematurely completing mailbox commands during ISP82xx firmware hang.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-12 12:37:58 +04:00
Chad Dupuis 10a340e641 [SCSI] qla2xxx: Display IPE error message for ISP82xx.
[jejb: fixup checkpatch error]
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-12 12:37:11 +04:00
Giridhar Malavali 841c5e5cee [SCSI] qla2xxx: Stop unconditional completion of mailbox commands issued in interrupt mode during firmware hang.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-12-12 12:34:55 +04:00
Chad Dupuis e5fdae5583 [SCSI] qla2xxx: Fix "active_mask" may be used uninitialized warning.
Since active_mask is first assigned in an "else" block, the compiler throws
a warning saying that the active_mask variable may be used uninitialized in
a print statement later.  Initialize active_mask to 0 in the declaration to
stop the warning.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:14:57 -07:00
Giridhar Malavali 3173167f01 [SCSI] qla2xxx: Issue mailbox command only when firmware hung bit is reset for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:14:57 -07:00
Saurav Kashyap 63d92d3e2e [SCSI] qla2xxx: Fix array out of bound warning.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:14:56 -07:00
Saurav Kashyap c8582ad95b [SCSI] qla2xxx: Prevent CPU lockups when "ql2xdontresethba" module param is set.
Driver is not releasing the lock if ql2xdontresethba is set, this might lead
to a lockup.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:14:55 -07:00
Saurav Kashyap 999916dc59 [SCSI] qla2xxx: Implemeted beacon on/off for ISP82XX.
[jejb: fix up checkpatch.pl errors]
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:14:55 -07:00
Giridhar Malavali 08de2844c6 [SCSI] qla2xxx: Add support for ISP82xx to capture dump (minidump) on failure.
Minidump allows us to catpure a snapshot of the firmware/hardware states at the
time of failure for further analysis.

[jejb: added missing #include <linux/vmalloc.h>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> ]
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-29 00:12:26 -07:00
Saurav Kashyap 51cc9a8e5f [SCSI] qla2xxx: Set the task attributes after memsetting fcp cmnd.
The memset of the fcp_cmnd struct needs to be moved so that it will not
zero-out valid data.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:22:09 -06:00
Saurav Kashyap 3553d343e7 [SCSI] qla2xxx: Save and restore irq in the response queue interrupt handler.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-27 08:20:18 -06:00
Saurav Kashyap 7c3df1320e [SCSI] qla2xxx: Code changes to support new dynamic logging infrastructure.
The code is changed to support the new dynamic logging infrastructure.
Following are the levels added.
Default is 0 - no logging.  0x40000000 - Module Init & Probe.
0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.
0x08000000 - IO tracing.    0x04000000 - DPC Thread.
0x02000000 - Async events.  0x01000000 - Timer routines.
0x00800000 - User space.    0x00400000 - Task Management.
0x00200000 - AER/EEH.       0x00100000 - Multi Q.
0x00080000 - P3P Specific.  0x00040000 - Virtual Port.
0x00020000 - Buffer Dump.   0x00010000 - Misc.
0x7fffffff - For enabling all logs, can be too many logs.

Setting ql2xextended_error_logging module parameter to any of the above
value, will enable the debug for that particular level.
Do LOGICAL OR of the value to enable more than one level.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 14:16:17 +04:00
Saurav Kashyap 24014d0464 [SCSI] qla2xxx: Add host number in reset and quiescent message logs.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:34:37 +04:00
Chad Dupuis d652e09370 [SCSI] qla2xxx: Add qla82xx_rom_unlock() function.
Encapsulate the unlocking of the ROM lock in a function for better
code readability.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:32:39 +04:00
Chad Dupuis 875efad774 [SCSI] qla2xxx: Log if qla82xx firmware fails to load from flash.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:32:11 +04:00
Andrew Vasquez fa96d92736 [SCSI] qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6.
The firmware spec has the fcp_data_dseg_len defined as a 32-bit
value, while the corresponding field in the driver structure has
it defined as a 16-bit value.

Cc: stable@kernel.org
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-17 11:28:03 +04:00
Giridhar Malavali 92dbf27392 [SCSI] qla2xxx: Limit the logs in case device state does not change for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:13:55 -05:00
Giridhar Malavali ed0de87ce6 [SCSI] qla2xxx: Add the ql2xdontresethba module_param.
Also, change the ISP82xx code to only reset if this module_param is set
and reset is intended via the QLA82XX_DEV_NEED_RESET case.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:12:18 -05:00
Giridhar Malavali 0e8edb0303 [SCSI] qla2xxx: Display hardware/firmware registers to get more information about the error for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:11:59 -05:00
Giridhar Malavali aee3dbcdd1 [SCSI] qla2xxx: Remove extra call to qla82xx_check_fw_alive().
The stanadlone call to qla82xx_check_fw_alive() in qla82xx_watchdog()
is a typo, so remove it.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:10:05 -05:00
Giridhar Malavali 02be221556 [SCSI] qla2xxx: Updated the reset sequence for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:08:53 -05:00
Andrew Vasquez 07e264b76d [SCSI] qla2xxx: Update copyright banner.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:07:23 -05:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Andrew Vasquez ff2fc42e74 [SCSI] qla2xxx: Propagate block-layer tags on submitted I/Os.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-25 13:00:08 -05:00
Giridhar Malavali 7190575f7a [SCSI] qla2xxx: Abort pending commands for faster recovery during ISP reset.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-25 12:51:44 -05:00
Giridhar Malavali 0060ddf8f7 [SCSI] qla2xxx: Reinitialize the device initialize timeout value after reset on ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-25 12:41:37 -05:00
Chad Dupuis 7c8cf2fee1 [SCSI] qla2xxx: Fix array subscript is above array bounds in qla2xx_build_scsi_type_6_iocbs().
The additional increment of dsd_seg was causing the compiler to throw an array
out of bounds warning. This patch moves to a direct assignment of
cmd_pkt->fcp_data_dseg_len so that the compiler doesn't generate an array out
bounds warning.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-25 12:24:59 -05:00
Giridhar Malavali aa5cbf8a70 [SCSI] qla2xxx: Use sg_next to fetch next sg element while walking sg list.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 16:09:47 -06:00
Giridhar Malavali 0ce8791149 [SCSI] qla2xxx: Remove code to not reset ISP82xx on failure.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 16:07:55 -06:00
Giridhar Malavali 10fbb7dd36 [SCSI] qla2xxx: Code cleanup to remove unwanted comments and code.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 16:02:22 -06:00
Madhuranath Iyengar c9e8fd5cfb [SCSI] qla2xxx: Fix for memory wedge on fw halt for ISP82XX
Signed-off-by: Swapnil Nagle <swapnil.nagle@qlogic.com>
Signed-off-by: Karen Higgins <karen.higgins@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 15:56:17 -06:00
Saurav Kashyap 579d12b58a [SCSI] qla2xxx: Added support for quiescence mode for ISP82xx.
Support is added for quiescence mode. This feature is for P3P
adapters. Any of the functions can put the firmware into quiescence
state. All the others have to ack that request. During quiescence mode
current commands are processed and all the new incoming I/Os are
blocked. Loop resync is performed after firmware comes out of
quiescence state.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 15:40:55 -06:00
Mike Hernandez 85727e1f78 [SCSI] qla2xxx: Populate Command Type 6 LUN field properly.
Use the host_to_fcp_swap call to correctly populate the LUN field
in the Command Type 6 path.  This field is used during LUN reset
cleanup and must match the field used in the FCP command.

Cc: stable@kernel.org
Signed-off-by: Mike Hernandez <michael.hernandez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-09 13:24:11 -06:00
Linus Torvalds c70b5296e7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (84 commits)
  [SCSI] be2iscsi: SGE Len == 64K
  [SCSI] be2iscsi: Remove premature free of cid
  [SCSI] be2iscsi: More time for FW
  [SCSI] libsas: fix bug for vacant phy
  [SCSI] sd: Fix overflow with big physical blocks
  [SCSI] st: add MTWEOFI to write filemarks without flushing drive buffer
  [SCSI] libsas: Don't issue commands to devices that have been hot-removed
  [SCSI] megaraid_sas: Add Online Controller Reset to MegaRAID SAS drive
  [SCSI] lpfc 8.3.17: Update lpfc driver version to 8.3.17
  [SCSI] lpfc 8.3.17: Replace function reset methodology
  [SCSI] lpfc 8.3.17: SCSI fixes
  [SCSI] lpfc 8.3.17: BSG fixes
  [SCSI] lpfc 8.3.17: SLI Additions and Fixes
  [SCSI] lpfc 8.3.17: Code Cleanup and Locking fixes
  [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces
  [SCSI] ipr: fix array error logging
  [SCSI] aha152x: enable PCMCIA on 64bit
  [SCSI] scsi_dh_alua: Handle all states correctly
  [SCSI] cxgb4i: connection and ddp setting update
  [SCSI] cxgb3i: fixed connection over vlan
  ...
2010-10-22 17:34:15 -07:00
Shyam Sundar e6a4202aa9 [SCSI] qla2xxx: ROM lock recovery if fw hangs while holding the lock.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-16 22:54:10 -04:00
Giridhar Malavali 77e334d240 [SCSI] qla2xxx: Cleanup some dead-code and make some functions static.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 15:34:58 -03:00
Lalit Chandivade a5b3632191 [SCSI] qla2xxx: Added AER support for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 15:33:07 -03:00
Giridhar Malavali 1bd58b89e8 [SCSI] qla2xxx: Check for empty slot in request queue before posting Command type 6 request.
For ISP82xx, the check for empty slot in request queue before posting command type 6
request was missing. This could lead to request queue entry corruptions causing
IO timeouts.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 15:22:53 -03:00
Giridhar Malavali 4142b1987f [SCSI] qla2xxx: Correctly set fw hung and complete only waiting mbx.
The fw_hung flag should be set ir-respective of if there is a
mbx command pending or not. Also the complete should be called
if there is a mbx waiting.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 15:18:29 -03:00
Lalit Chandivade efa786cc43 [SCSI] qla2xxx: Reset seconds_since_last_heartbeat correctly.
The seconds_since_last_heartbeat should be checked for consecutive
heartbeat checks. Currently it could happen that seconds_since_last_heartbeat
gets set to max (2 seconds) for non-consecutive heartbeat checks.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-05 15:18:28 -03:00
Giridhar Malavali de7c5d059d [SCSI] qla2xxx: Update copyright banner.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28 09:06:16 -05:00
Giridhar Malavali 3711333dfb [SCSI] qla2xxx: Updates for ISP82xx.
Re-organized and cleaned up the ISP82xx specific code.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28 09:06:14 -05:00
Giridhar Malavali 6907869d72 [SCSI] qla2xxx: Enable CRB based doorbell posting for request queue as default for ISP 82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:01:27 -05:00
Lalit Chandivade 0547fb37ca [SCSI] qla2xxx: Fix flash write failure on ISP82xx.
Driver was not unprotecting correctly, use correct bits
to unprotect the flash on ISP 82xx.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:01:25 -05:00
Santosh Vernekar cdbb0a4f31 [SCSI] qla2xxx: Handle outstanding mbx cmds on hung f/w scenarios.
Outstanding mailbox commands, have no way to recover on f/w hung, and we
timeout on waiting for mbx response. This in turn affects the recovery process
as follows:
- We might already be in dpc while waiting for mbx to complete, so recovery for
that pci function will never get invoked. Reset Timeout (10 sec) is far less
than mbx timeout (30 sec).
- Other mbx cmds will get stuck due to serial mbx access.

Solution is to identify fw-hung scenario and handle outstanding mbx commands to
have an early-exit instead of waiting for response.
Other mbx commands waiting for access will also do an early-exit if fw-hung is
still applicable.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:01:25 -05:00