lwn.git/drivers/message/fusion/mptsas.c, branch v3.10.67

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

2013-05-08T17:13:35+00:00

Pull block core updates from Jens Axboe: - Major bit is Kents prep work for immutable bio vecs. - Stable candidate fix for a scheduling-while-atomic in the queue bypass operation. - Fix for the hang on exceeded rq->datalen 32-bit unsigned when merging discard bios. - Tejuns changes to convert the writeback thread pool to the generic workqueue mechanism. - Runtime PM framework, SCSI patches exists on top of these in James' tree. - A few random fixes. * 'for-3.10/core' of git://git.kernel.dk/linux-block: (40 commits) relay: move remove_buf_file inside relay_close_buf partitions/efi.c: replace useless kzalloc's by kmalloc's fs/block_dev.c: fix iov_shorten() criteria in blkdev_aio_read() block: fix max discard sectors limit blkcg: fix "scheduling while atomic" in blk_queue_bypass_start Documentation: cfq-iosched: update documentation help for cfq tunables writeback: expose the bdi_wq workqueue writeback: replace custom worker pool implementation with unbound workqueue writeback: remove unused bdi_pending_list aoe: Fix unitialized var usage bio-integrity: Add explicit field for owner of bip_buf block: Add an explicit bio flag for bios that own their bvec block: Add bio_alloc_pages() block: Convert some code to bio_for_each_segment_all() block: Add bio_for_each_segment_all() bounce: Refactor __blk_queue_bounce to not use bi_io_vec raid1: use bio_copy_data() pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage pktcdvd: use bio_copy_data() block: Add bio_copy_data() ...

fusion: switch to ->show_info()

2013-04-09T18:13:18+00:00

Signed-off-by: Al Viro

block: Remove some unnecessary bi_vcnt usage

2013-03-23T21:15:31+00:00

More prep work for immutable bvecs/effecient bio splitting - usage of bi_vcnt has to be auditing, so getting rid of all the unnecessary usage makes that easier. Plus, bio_segments() is really what this code wanted, as it respects the current value of bi_idx. Signed-off-by: Kent Overstreet CC: Jens Axboe CC: Eric Moore CC: "James E.J. Bottomley" CC: linux-scsi@vger.kernel.org

Drivers: message: remove __dev* attributes.

2013-01-03T23:57:14+00:00

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton Cc: Nagalakshmi Nandigama Cc: Sreekanth Reddy Signed-off-by: Greg Kroah-Hartman

[SCSI] mptsas: Add device ID for SAS1068_820XELP.

2011-12-15T06:57:30+00:00

Signed-off-by: Chandrakala Chavva Signed-off-by: David Daney Acked-by: "Nandigama, Nagalakshmi" Signed-off-by: James Bottomley

[SCSI] mptfusion: Fix for device offline while doing aggressive HBA reset

2011-08-27T14:35:53+00:00

[Resend patch as per Bernd Schubert comment ] Issue: Device goes offline while doing aggressive HBA reset along with IO using some utility. Root cause: FW goes into bad state due to aggressive reset. Softreset does not help to recover FW. And also aggressive reset open up the window for Error handling thread to kicked off at the same time HBA will be in constant RESET loop as part of aggressive reset test case can lead Device to goes offline. Changes: 1. Added extra check as below inside eh_timed_out call back as below. if(ioc->ioc_reset_in_progress) Rc = EH_TIMER_RESET 2. Removed " DOORBELL_ACTIVE" check for SAS controller from task management context. Since SAS controller uses high priority queue for task management. This check is not required for SAS controller. 3. Moved SoftReset call to HardReset from Task Mgmt context. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley

[SCSI] mptfusion: Avoid out of order Event processing due to cpu migration

2011-08-27T14:35:18+00:00

Driver will now schedule MPI event using "delay_work_queue_on" to specify same CPU to be used to schedule work. Earlier it used "delay_work_queue" which can cause migration of work due to kernel' timer migration feature. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley

[SCSI] mptfusion: Better handling of DEAD IOC PCI-E Link down error condition

2011-08-27T14:35:16+00:00

Find Non-Operation IOC and remove it from OS: Detecting dead(non-functional) ioc will be done reading doorbell register value from fault reset thread, which has been called from work thread context after each specific interval. If doorbell value is 0xFFFFFFFF, it will be considered as IOC is non-operational and marked as dead ioc. Once Dead IOC has been detected, it will be removed at pci layer using "pci_remove_bus_device" API. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley

[SCSI] mptfusion: Set max sector count module parameter

2011-08-27T14:35:14+00:00

The max_sector setting is currently hard-coded in the driver to 8192 sectors (4MB transfers). Using new module parameter, if max_sectors is specified at load time, the default of 8192 will be overridden. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley

[SCSI] mptsas: Fix annoying warning

2011-05-17T06:57:37+00:00

Shut up drivers/message/fusion/mptsas.c: In function 'mptsas_event_process': drivers/message/fusion/mptsas.c:5015: warning: unused variable 'log_info' for configs with CONFIG_SCSI_MPT2SAS_LOGGING unset. Signed-off-by: Borislav Petkov Acked-by: "Desai, Kashyap" Signed-off-by: James Bottomley Signed-off-by: James Bottomley