]> git.baikalelectronics.ru Git - kernel.git/commit
be2iscsi: Fix IOPOLL implementation
authorJitendra Bhivare <jitendra.bhivare@avagotech.com>
Wed, 20 Jan 2016 08:40:56 +0000 (14:10 +0530)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 24 Feb 2016 02:27:02 +0000 (21:27 -0500)
commite4a296c71ac72f06277d10c33ba9ee8623074d15
tree674cba14cd6faffa0ecc56e9b583fa57f3fed3b8
parentfdb98d9f9df13bcbf76056956246290459400ddc
be2iscsi: Fix IOPOLL implementation

OS not responding when running 2 port traffic on 72 CPUs system.

be2iscsi IRQs gets affined to CPU0 when irqbalancer is disabled.
be_iopoll processing completions in BLOCK_IOPOLL_SOFTIRQ hogged CPU0.

1. Use budget to exit the polling loop. beiscsi_process_cq didn't honour
   it.
2. Rearming of EQ is done only after iopoll completes.

[mkp: Fixed up blk_iopoll -> irq_poll transition]

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/be2iscsi/be_cmds.c
drivers/scsi/be2iscsi/be_iscsi.c
drivers/scsi/be2iscsi/be_main.c
drivers/scsi/be2iscsi/be_main.h