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| author | Jitendra Bhivare <jitendra.bhivare@avagotech.com> | 2016-01-20 14:10:56 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-23 21:27:02 -0500 |
| commit | 1094cf68e801cdde7b65dc91fb8e9276af736176 (patch) | |
| tree | 674cba14cd6faffa0ecc56e9b583fa57f3fed3b8 /drivers/scsi/be2iscsi/be_iscsi.c | |
| parent | 23d7ccf134a49685aaae658e6623ef396ac76196 (diff) | |
| download | linux-1094cf68e801cdde7b65dc91fb8e9276af736176.tar.gz linux-1094cf68e801cdde7b65dc91fb8e9276af736176.tar.bz2 linux-1094cf68e801cdde7b65dc91fb8e9276af736176.zip | |
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>
Diffstat (limited to 'drivers/scsi/be2iscsi/be_iscsi.c')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_iscsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index 52aab12e2709..8bf7379b06ad 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -1298,7 +1298,7 @@ static void beiscsi_flush_cq(struct beiscsi_hba *phba) for (i = 0; i < phba->num_cpus; i++) { pbe_eq = &phwi_context->be_eq[i]; irq_poll_disable(&pbe_eq->iopoll); - beiscsi_process_cq(pbe_eq); + beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC); irq_poll_enable(&pbe_eq->iopoll); } } |