linux-kernel - Re: [PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives

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Message-ID: <yq1twu3bg9j.fsf@sermon.lab.mkp.net>
Date:	Fri, 19 Jun 2015 16:22:00 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Sreekanth Reddy <sreekanth.reddy@...gotech.com>
Cc:	jejb@...nel.org, hch@...radead.org, jthumshirn@...e.de,
	martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
	JBottomley@...allels.com, Sathya.Prakash@...gotech.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 06/20] [SCSI] mpt3sas: Provides the physical location of sas drives

>>>>> Sreekanth Reddy <sreekanth.reddy@...gotech.com> writes:

> This Patch will provide more details of the devices such as slot
> number, enclosure logical id, enclosure level & connector name in the
> following scenarios, - When end device is added in the topology, -
> When the end device is removed from the setup, - When the SCSI mid
> layer issues TASK ABORT/ DEVICE RESET/ TARGET RESET during error
> handling, - When any command to the device fails with Sense key
> Hardware error or Medium error or Unit Attention, - When firmware
> returns device error or device not ready status for the end device, -
> When a Predicted fault is detected on an end device.

> This information can be used by the user to identify the location of
> the desired drive in the topology.

> Driver will get these information by reading the sas device page0.

Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>

-- 
Martin K. Petersen	Oracle Linux Engineering
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