BMC/Intel-BMC/linux.git/drivers/block/mtip32xx, branch dev-4.6

mtip32xx: fix checks for dma mapping errors

2016-03-19T01:10:59+00:00

exec_drive_taskfile() checks for dma mapping errors by comparison returned address with zero, while pci_dma_mapping_error() should be used. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Jens Axboe

mtip32xx: remove unneeded variable in mtip_cmd_timeout()

2016-03-04T15:15:48+00:00

We always return BLK_EH_RESET_TIMER, so no point in storing that in an integer. Signed-off-by: Jens Axboe

mtip32xx: Cleanup queued requests after surprise removal

2016-03-03T16:08:44+00:00

Fail all pending requests after surprise removal of a drive. Signed-off-by: Vignesh Gunasekaran Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Implement timeout handler

2016-03-03T16:08:44+00:00

Added timeout handler. Replaced blk_mq_end_request() with blk_mq_complete_request() to avoid double completion of a request. Signed-off-by: Selvan Mani Signed-off-by: Rajesh Kumar Sambandam Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Handle FTL rebuild failure state during device initialization

2016-03-03T16:08:43+00:00

Allow device initialization to finish gracefully when it is in FTL rebuild failure state. Also, recover device out of this state after successfully secure erasing it. Signed-off-by: Selvan Mani Signed-off-by: Vignesh Gunasekaran Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Handle safe removal during IO

2016-03-03T16:08:43+00:00

Flush inflight IOs using fsync_bdev() when the device is safely removed. Also, block further IOs in device open function. Signed-off-by: Selvan Mani Signed-off-by: Rajesh Kumar Sambandam Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Fix for rmmod crash when drive is in FTL rebuild

2016-03-03T16:08:43+00:00

When FTL rebuild is in progress, alloc_disk() initializes the disk but device node will be created by add_disk() only after successful completion of FTL rebuild. So, skip deletion of device node in removal path when FTL rebuild is in progress. Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Avoid issuing standby immediate cmd during FTL rebuild

2016-03-03T16:08:43+00:00

Prevent standby immediate command from being issued in remove, suspend and shutdown paths, while drive is in FTL rebuild process. Signed-off-by: Selvan Mani Signed-off-by: Vignesh Gunasekaran Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Print exact time when an internal command is interrupted

2016-03-03T16:08:43+00:00

Print exact time when an internal command is interrupted. Signed-off-by: Selvan Mani Signed-off-by: Rajesh Kumar Sambandam Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe

mtip32xx: Remove unwanted code from taskfile error handler

2016-03-03T16:08:43+00:00

Remove setting and clearing MTIP_PF_EH_ACTIVE_BIT flag in mtip_handle_tfe() as they are redundant. Also avoid waking up service thread from mtip_handle_tfe() because it is already woken up in case of taskfile error. Signed-off-by: Selvan Mani Signed-off-by: Rajesh Kumar Sambandam Signed-off-by: Asai Thambi S P Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe