On 12/15/2015 04:55 PM, Jitendra Bhivare wrote:
From: Jitendra <[email protected]>
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.
Signed-off-by: Jitendra <[email protected]>
---
drivers/scsi/be2iscsi/be_cmds.c | 2 +-
drivers/scsi/be2iscsi/be_iscsi.c | 2 +-
drivers/scsi/be2iscsi/be_main.c | 91 +++++++++++++++++++++-----------------
drivers/scsi/be2iscsi/be_main.h | 5 +-
4 files changed, 56 insertions(+), 44 deletions(-)
Reviewed-by: Hannes Reinecke <[email protected]>
Cheers,
Hannes
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Dr. Hannes Reinecke zSeries & Storage
[email protected] +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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