From: James Bottomley <James.Bottomley@suse.de>
To: "Kashyap, Desai" <kashyap.desai@lsi.com>
Cc: linux-scsi@vger.kernel.org, Eric.Moore@lsi.com, Sathya.Prakash@lsi.com
Subject: Re: [PATCH] mpt2sas : Enable TLR for SSP TAPE drives
Date: Fri, 13 Nov 2009 08:53:50 -0600 [thread overview]
Message-ID: <1258124030.4065.11.camel@mulgrave.site> (raw)
In-Reply-To: <20091113082620.GB18271@lsi.com>
On Fri, 2009-11-13 at 13:56 +0530, Kashyap, Desai wrote:
> The driver is sending vpd page 0, to get a list of supported pages. Then it
> will traverse the list searching for page 0x90. when page 0x90 is present,
> the driver will enable the TLR logic for Tape devices only. The TLR logic
> will enable the TLR bits in the SCSI_IO for every request. If there is a
> response with MPI2_SCSITASKMGMT_RSP_INVALID_FRAME, the driver will turn off
> the TLR logic.
This is applicable to all SAS drivers, isn't it? So it should be in the
sas transport class and we should be figuring out how to add it to all
SAS drivers, shouldn't we?
James
next prev parent reply other threads:[~2009-11-13 14:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-13 8:26 [PATCH] mpt2sas : Enable TLR for SSP TAPE drives Kashyap, Desai
2009-11-13 14:53 ` James Bottomley [this message]
2009-11-16 12:02 ` Desai, Kashyap
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