tree 674cba14cd6faffa0ecc56e9b583fa57f3fed3b8
parent 23d7ccf134a49685aaae658e6623ef396ac76196
author Jitendra Bhivare <jitendra.bhivare@avagotech.com> 1453279256 +0530
committer Martin K. Petersen <martin.petersen@oracle.com> 1456280822 -0500

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>