linux-kernel - Re: [PATCH 0/3] hisi_sas: some CQ processing fixes

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Message-ID: <52fd4c87-a1e7-8a7e-835c-03297f7b1737@linaro.org>
Date:   Wed, 4 Jan 2017 10:14:53 +0800
From:   Hanjun Guo <hanjun.guo@...aro.org>
To:     John Garry <john.garry@...wei.com>, jejb@...ux.vnet.ibm.com,
        martin.petersen@...cle.com
Cc:     linuxarm@...wei.com, zhangfei.gao@...aro.org, xuwei5@...ilicon.com,
        john.garry2@...l.dcu.ie, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] hisi_sas: some CQ processing fixes

On 2017/1/3 20:24, John Garry wrote:
> This patchset fixes some issues related to servicing of the
> completion queue interrupt.
> The major fix is that sensitive hisi_hba structures need to be
> locked when free'ing a slot.
> Another modification is that the v2 hw completion queue irq is
> now serviced with a tasklet, as too much work was being done in
> the ISR.

Tested on v2 based sas hardware and the crashes are gone,

Tested-by: Hanjun Guo <hanjun.guo@...aro.org>

Thanks
Hanjun