From: Hannes Reinecke <hare@suse.de>
To: John Garry <john.garry@huawei.com>,
JBottomley@odin.com, martin.petersen@oracle.com
Cc: linuxarm@huawei.com, zhangfei.gao@linaro.org,
xuwei5@hisilicon.com, john.garry2@mail.dcu.ie,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/6] hisi_sas: add hisi_sas_slave_configure()
Date: Tue, 16 Feb 2016 16:33:55 +0100 [thread overview]
Message-ID: <56C34163.70606@suse.de> (raw)
In-Reply-To: <1455625351-165881-6-git-send-email-john.garry@huawei.com>
On 02/16/2016 01:22 PM, John Garry wrote:
> In high-datarate aging tests, it is found that
> the SCSI framework can periodically
> issue lu resets to the device. This is because scsi
> commands begin to timeout. It is found that TASK SET
> FULL may be returned many times for the same command,
> causing the timeouts.
> To overcome this, the queue depth for the device needs
> to be reduced to 64 (from 256, set in
> sas_slave_configure()).
>
Hmm. TASK SET FULL should cause the queue depth to be reduced
automatically, no?
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
next prev parent reply other threads:[~2016-02-16 15:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 12:22 [PATCH 0/6] hisi_sas: add abort and retry feature John Garry
2016-02-16 12:22 ` [PATCH 1/6] hisi_sas: add TMF_RESP_FUNC_SUCC check John Garry
2016-02-16 15:20 ` Hannes Reinecke
2016-02-16 12:22 ` [PATCH 2/6] hisi_sas: add hisi_sas_slot_abort() John Garry
2016-02-16 15:22 ` Hannes Reinecke
2016-02-16 15:41 ` John Garry
2016-02-18 9:30 ` John Garry
2016-02-16 12:22 ` [PATCH 3/6] hisi_sas: use slot abort in v1 hw John Garry
2016-02-16 15:31 ` Hannes Reinecke
2016-02-16 16:13 ` John Garry
2016-02-18 7:16 ` Hannes Reinecke
2016-02-18 9:52 ` John Garry
2016-02-16 12:22 ` [PATCH 4/6] hisi_sas: use slot abort in v2 hw John Garry
2016-02-16 15:32 ` Hannes Reinecke
2016-02-16 16:58 ` John Garry
2016-02-16 12:22 ` [PATCH 5/6] hisi_sas: add hisi_sas_slave_configure() John Garry
2016-02-16 15:33 ` Hannes Reinecke [this message]
2016-02-16 16:56 ` John Garry
2016-02-18 7:40 ` Hannes Reinecke
2016-02-18 10:12 ` John Garry
2016-02-18 10:30 ` Hannes Reinecke
2016-02-18 10:57 ` John Garry
2016-02-19 10:46 ` John Garry
2016-02-19 14:31 ` Hannes Reinecke
2016-02-22 10:02 ` John Garry
2016-02-16 12:22 ` [PATCH 6/6] hisi_sas: update driver version to 1.3 John Garry
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