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Re: [PATCH 1/3] scsi: hisi_sas: service v2 hw CQ ISR with tasklet

From zhangfei <zhangfei.gao@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1/3] scsi: hisi_sas: service v2 hw CQ ISR with tasklet
Date 2017-01-04 02:20 +0100
Message-ID <sVIpb-624-9@gated-at.bofh.it> (permalink)
References <sVvUZ-5CH-3@gated-at.bofh.it> <sVvV0-5CH-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2017年01月03日 20:24, John Garry wrote:
> Currently the all the slot processing for the completion
> queue is done in ISR context. It is judged that the slot
> processing can take a long time, especially when a SATA
> NCQ completes (upto 32 slots).
>
> So, as a solution, defer the bulk of the ISR processing
> to tasklet context. Each CQ will have its down tasklet.
>
> Signed-off-by: John Garry <john.garry@huawei.com>
> Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>

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Thread

[PATCH 0/3] hisi_sas: some CQ processing fixes John Garry <john.garry@huawei.com> - 2017-01-03 13:00 +0100
  [PATCH 1/3] scsi: hisi_sas: service v2 hw CQ ISR with tasklet John Garry <john.garry@huawei.com> - 2017-01-03 13:00 +0100
    Re: [PATCH 1/3] scsi: hisi_sas: service v2 hw CQ ISR with tasklet zhangfei <zhangfei.gao@linaro.org> - 2017-01-04 02:20 +0100
  Re: [PATCH 0/3] hisi_sas: some CQ processing fixes Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-04 03:30 +0100
  Re: [PATCH 0/3] hisi_sas: some CQ processing fixes "Martin K. Petersen" <martin.petersen@oracle.com> - 2017-01-06 00:30 +0100

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