kernel.git/drivers/scsi/ipr.h, branch linux-4.16.y

scsi: ipr: Fix scsi-mq lockdep issue

2017-08-08T15:49:51Z

Fixes the following lockdep warning that can occur when scsi-mq is enabled with ipr due to ipr calling scsi_unblock_requests from irq context. The fix is to move the call to scsi_unblock_requests to ipr's existing workqueue. stack backtrace: CPU: 28 PID: 0 Comm: swapper/28 Not tainted 4.13.0-rc2-gcc6x-gf74c89b #1 Call Trace: [c000001fffe97550] [c000000000b50818] dump_stack+0xe8/0x160 (unreliable) [c000001fffe97590] [c0000000001586d0] print_usage_bug+0x2d0/0x390 [c000001fffe97640] [c000000000158f34] mark_lock+0x7a4/0x8e0 [c000001fffe976f0] [c00000000015a000] __lock_acquire+0x6a0/0x1a70 [c000001fffe97860] [c00000000015befc] lock_acquire+0xec/0x2e0 [c000001fffe97930] [c000000000b71514] _raw_spin_lock+0x44/0x70 [c000001fffe97960] [c0000000005b60f4] blk_mq_sched_dispatch_requests+0xa4/0x2a0 [c000001fffe979c0] [c0000000005acac0] __blk_mq_run_hw_queue+0x100/0x2c0 [c000001fffe97a00] [c0000000005ad478] __blk_mq_delay_run_hw_queue+0x118/0x130 [c000001fffe97a40] [c0000000005ad61c] blk_mq_start_hw_queues+0x6c/0xa0 [c000001fffe97a80] [c000000000797aac] scsi_kick_queue+0x2c/0x60 [c000001fffe97aa0] [c000000000797cf0] scsi_run_queue+0x210/0x360 [c000001fffe97b10] [c00000000079b888] scsi_run_host_queues+0x48/0x80 [c000001fffe97b40] [c0000000007b6090] ipr_ioa_bringdown_done+0x70/0x1e0 [c000001fffe97bc0] [c0000000007bc860] ipr_reset_ioa_job+0x80/0xf0 [c000001fffe97bf0] [c0000000007b4d50] ipr_reset_timer_done+0xd0/0x100 [c000001fffe97c30] [c0000000001937bc] call_timer_fn+0xdc/0x4b0 [c000001fffe97cf0] [c000000000193d08] expire_timers+0x178/0x330 [c000001fffe97d60] [c0000000001940c8] run_timer_softirq+0xb8/0x120 [c000001fffe97de0] [c000000000b726a8] __do_softirq+0x168/0x6d8 [c000001fffe97ef0] [c0000000000df2c8] irq_exit+0x108/0x150 [c000001fffe97f10] [c000000000017bf4] __do_irq+0x2a4/0x4a0 [c000001fffe97f90] [c00000000002da50] call_do_irq+0x14/0x24 [c0000007fad93aa0] [c000000000017e8c] do_IRQ+0x9c/0x140 [c0000007fad93af0] [c000000000008b98] hardware_interrupt_common+0x138/0x140 Reported-by: Michael Ellerman Signed-off-by: Brian King Signed-off-by: Martin K. Petersen

scsi: ipr: Driver version 2.6.4

2017-03-23T16:04:05Z

Bump driver version Signed-off-by: Brian King Reviewed-by: Wendy Xiong Tested-by: Wendy Xiong Signed-off-by: Martin K. Petersen

scsi: ipr: Use pci_irq_allocate_vectors

2016-11-08T22:29:46Z

Switch the ipr driver to use pci_alloc_irq_vectors. We need to two calls to pci_alloc_irq_vectors as ipr only supports multiple MSI-X vectors, but not multiple MSI vectors. Otherwise this cleans up a lot of cruft and allows to use a common request_irq loop for irq types, which happens to only iterate over a single line in the non MSI-X case. Signed-off-by: Christoph Hellwig Acked-by: Brian King Signed-off-by: Martin K. Petersen

scsi: ipr: Don't log unnecessary 9084 error details

2016-09-19T15:57:33Z

A 9084 error gets logged by the ipr adapter when adapter raw mode gets enabled. A bunch of unformatted hex data also gets logged for this error, which is of little use, so let's avoid logging it by default in order to avoid the log getting polluted with useless data. Signed-off-by: Brian King Reviewed-by: Gabriel Krisman Bertazi Signed-off-by: Martin K. Petersen

scsi: ipr: Add asynchronous error notification

2016-08-26T03:39:15Z

This patch implements functions for pushing HCAM (host controlled asynchronous messages) error buffers to userspace through sysfs attributes. Reads to the "async_err_log" attribute will result in a single HCAM buffer being copied to userspace; one can process the next HCAM buffer by writing any string to the same attribute. A new list was added to the ioa_cfg structure to store the HCAM buffers for later reporting. We also send a KOBJ_CHANGE event whenever a new HCAM buffer is made available to userspace. Signed-off-by: Heitor Ricardo Alves de Siqueira Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Brian King Signed-off-by: Martin K. Petersen

ipr: Wait to do async scan until scsi host is initialized

2016-07-27T04:32:07Z

When performing an async scan, make sure the kthread doing scanning doesn't start before the scsi host is fully initialized. Signed-off-by: Brian King Reviewed-by: Gabriel Krisman Bertazi Signed-off-by: Martin K. Petersen

ipr: Add new CCIN for new adapters support

2016-07-14T02:39:32Z

Add the appropriate definitions and table entries for new adapters support. Signed-off-by: Wen Xiong Reviewed-by: Gabriel Krisman Bertazi Acked-by: Brian King Signed-off-by: Martin K. Petersen

irq_poll: make blk-iopoll available outside the block layer

2015-12-11T19:52:24Z

The new name is irq_poll as iopoll is already taken. Better suggestions welcome. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche

ipr: Driver version 2.6.3.

2015-11-10T00:32:41Z

Signed-off-by: Gabriel Krisman Bertazi Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen

ipr: Issue Configure Cache Parameters command.

2015-11-10T00:32:08Z

Some new adapters require a special Configure Cache Parameters command to enable the adapter write cache, so send this during the adapter initialization if the adapter requires it. Signed-off-by: Gabriel Krisman Bertazi Acked-by: Brian King Reviewed-by: Wen Xiong Signed-off-by: Martin K. Petersen