kernel.git/drivers/scsi/bfa, branch linux-2.6.34.y

bfa: fix system crash when reading sysfs fc_host statistics

2011-04-17T20:16:12Z

commit 7873ca4e4401f0ecd8868bf1543113467e6bae61 upstream. The port data structure related to fc_host statistics collection is not initialized. This causes system crash when reading the fc_host statistics. The fix is to initialize port structure during driver attach. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley Signed-off-by: Paul Gortmaker

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

[SCSI] bfa: Update the driver version to 2.1.2.1.

2010-03-07T07:58:38Z

Upgrade the upstream driver from 2.0.0.0 to 2.1.2.1. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: Remove unused header files and did some cleanup.

2010-03-07T07:57:51Z

Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: Handle SCSI IO underrun case.

2010-03-07T07:42:38Z

When IO is completed with underrun and with good SCSI status, check if the transferred bytes against scsi_cmnd->underflow, which is set to minimum number of bytes that must be transferred for this command, if is less than required minimum, complete the IO with DID_ERROR. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: FCS and include file changes.

2010-03-07T07:42:04Z

MS module did not invoke fdmi offline in all cases, call fdmi offline when ms module receives a port offline, so that fdmi offline is from one place in the ms module. Make changes to handle 10G speed in the conversion routine. Replaced the usage of bfa_adapter_attr_s struct with specific API's. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: Modified the portstats get/clear logic

2010-03-07T07:40:13Z

Modified the portstats get/clear logic for port physical/FCoE/QoS stats. Added more stats to FC Fixed some issues with FCoE stats collection. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: Replace bfa_get_attr() with specific APIs

2010-03-07T07:37:00Z

bfa_ioc_attr_s is a big structure and some times could cause stack overflow if defined locally, so add specific APIs that are needed to replace the use of ioc_attr local var. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: New portlog entries for events (FIP/FLOGI/FDISC/LOGO).

2010-03-07T07:36:36Z

Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley

[SCSI] bfa: Rename pport to fcport in BFA FCS.

2010-03-07T07:35:10Z

Rename pport structures to fcport in BFA FCS, to resolve confusion about the port structures in the firmware, and make sure the SG page is setup correctly. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley