kernel/git/stable/linux-stable.git/drivers/scsi, branch linux-2.6.39.y

Fix oops caused by queue refcounting failure

2011-06-23T22:05:32+00:00

commit e73e079bf128d68284efedeba1fbbc18d78610f9 upstream. In certain circumstances, we can get an oops from a torn down device. Most notably this is from CD roms trying to call scsi_ioctl. The root cause of the problem is the fact that after scsi_remove_device() has been called, the queue is fully torn down. This is actually wrong since the queue can be used until the sdev release function is called. Therefore, we add an extra reference to the queue which is released in sdev->release, so the queue always exists. Reported-by: Parag Warudkar Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

block: don't block events on excl write for non-optical devices

2011-06-03T00:32:50+00:00

commit d4dc210f69bcb0b4bef5a83b1c323817be89bad1 upstream. Disk event code automatically blocks events on excl write. This is primarily to avoid issuing polling commands while burning is in progress. This behavior doesn't fit other types of devices with removeable media where polling commands don't have adverse side effects and door locking usually doesn't exist. This patch introduces new genhd flag which controls the auto-blocking behavior and uses it to enable auto-blocking only on optical devices. Note for stable: 2.6.38 and later only Signed-off-by: Tejun Heo Reported-by: Kay Sievers Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman

Fix Ultrastor asm snippet

2011-06-03T00:32:03+00:00

commit fad4dab5e44e10acf6b0235e469cb8e773b58e31 upstream. Commit 1292500b replaced "=m" (*field) : "1" (*field) with "=m" (*field) : with comment "The following patch fixes it by using the '+' operator on the (*field) operand, marking it as read-write to gcc." '+' was actually forgotten. This really puts it. Signed-off-by: Samuel Thibault Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

bnx2i: Updated the connection shutdown/cleanup timeout

2011-06-03T00:32:03+00:00

commit d5307a078bb0288945c900c6f4a2fd77ba6d0817 upstream. Modified the 10s wait time for inflight offload connections to advance to the next state to 2s based on test result. Modified the 20s shutdown timeout to 30s based on test result. Signed-off-by: Eddie Wai Reviewed-by: Mike Christie Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

bnx2i: Fixed packet error created when the sq_size is set to 16

2011-06-03T00:32:03+00:00

commit 7287c63e986fe1a51a89f4bb1327320274a7a741 upstream. The number of chip's internal command cell, which is use to generate SCSI cmd packets to the target, was not initialized correctly by the driver when the sq_size is changed from the default 128. This, in turn, will create a problem where the chip's transmit pipe will erroneously reuse an old command cell that is no longer valid. The fix is to correctly initialize the chip's command cell upon setup. Signed-off-by: Eddie Wai Reviewed-by: Mike Christie Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

mpt2sas: move even handling of MPT2SAS_TURN_ON_FAULT_LED into process context

2011-06-03T00:31:59+00:00

commit 3ace8e052be5293ebb3e00f819effccc64108a38 upstream. Driver was a sending a SEP request during interrupt context which required to go to sleep. The fix is to rearrange the code so a fake event MPT2SAS_TURN_ON_FAULT_LED is fired from interrupt context, then later during the kernel worker threads processing, the SEP request is issued to firmware. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

qla2xxx: Fix vport delete hang when logins are outstanding.

2011-06-03T00:31:28+00:00

commit 9f40682e2857a3c2ddb80a87b185af3c6a708346 upstream. Timer is required to flush out entries that may be present in work queues. Signed-off-by: Arun Easi Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

qla2xxx: Fix virtual port failing to login after chip reset.

2011-06-03T00:31:28+00:00

commit cefcaba67ab97fb756b3a6af5139c94d861b660d upstream. This patch ensures qla82xx_watchdog is not being run for the vport. It also makes sure that beacon ON is not done for the vport, as it will lead to the waking up of the dpc thread again and again. Signed-off-by: Saurav Kashyap Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

qla2xxx: Fix hang during driver unload when vport is active.

2011-06-03T00:31:27+00:00

commit 43ebf16d762b082663976b679b813e1b546548d1 upstream. Bumping ref count during fc_vport_terminate() was the cause. vport delete would wait for ref count to drop to zero and that would never happen. Signed-off-by: Arun Easi Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman

qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6.

2011-06-03T00:31:27+00:00

commit fa96d927362a422405d65491326f8ef763572e84 upstream. 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. Signed-off-by: Andrew Vasquez Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman