linux/drivers/scsi/mpt2sas
Kashyap, Desai 1bbfa378af [SCSI] mpt2sas: Copy message frame before releasing to free pool to have a local reference.
Current driver is  not clearing the per device tm_busy flag
following the Task Mangement request completion from the IOCTL path.
When this flag is set, the IO queues are frozen.   The reason the flag
didn't get cleared is becuase the driver is referencing
memory associated to the mpi request following the completion, when
the memory had been reallocated for a new request.  When the memory
was reallocated, the driver didn't clear the flag becuase it was
expecting a task managment reqeust, and the reallocated request was
for SCSI_IO.  To fix the problem the driver needs to have a cached
backup copy of the original reqeust.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:02:25 -05:00
..
mpi [SCSI] mpt2sas: MPI header version N is updated. 2010-07-27 12:02:13 -05:00
Kconfig [SCSI] mpt2sas: Copyright 2010. 2010-04-11 09:24:02 -05:00
Makefile [SCSI] mpt2sas v00.100.11.15 2009-03-13 16:08:49 -05:00
mpt2sas_base.c [SCSI] mpt2sas: Copy sense buffer instead of working on direct memory location 2010-07-27 12:02:24 -05:00
mpt2sas_base.h [SCSI] mpt2sas: Copy sense buffer instead of working on direct memory location 2010-07-27 12:02:24 -05:00
mpt2sas_config.c [SCSI] mpt2sas: print level KERN_DEBUG is replaced by KERN_INFO 2010-07-27 12:02:16 -05:00
mpt2sas_ctl.c [SCSI] mpt2sas: Copy message frame before releasing to free pool to have a local reference. 2010-07-27 12:02:25 -05:00
mpt2sas_ctl.h [SCSI] mpt2sas: Copyright 2010. 2010-04-11 09:24:02 -05:00
mpt2sas_debug.h [SCSI] mpt2sas: Copyright 2010. 2010-04-11 09:24:02 -05:00
mpt2sas_scsih.c [SCSI] mpt2sas: Adding additional message to error escalation callback 2010-07-27 12:02:23 -05:00
mpt2sas_transport.c [SCSI] mpt2sas: print level KERN_DEBUG is replaced by KERN_INFO 2010-07-27 12:02:16 -05:00