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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Anil kumar <anils_r@yahoo.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Christof Schmitt <christof.schmitt@de.ibm.com>,
	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: scsi_cmnd data_buffer checksum
Date: Thu, 09 Sep 2010 23:33:34 -0400	[thread overview]
Message-ID: <yq1iq2es25t.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <198194.69355.qm@web32407.mail.mud.yahoo.com> (Anil kumar's message of "Thu, 9 Sep 2010 12:34:55 -0700 (PDT)")

>>>>> "Anil" == Anil kumar <anils_r@yahoo.com> writes:

Anil> But I had a quick question, isn't that drive has to support
Anil> "protection enable" also.

Just register DIX Type 0 in the host's protection mask.  That'll enable
protected transfer to the HBA only.


Anil> Also, does Controller FW need to do anything extra to send DIF
Anil> block down to drive. Ideally we will be sending 512 byte blocks
Anil> down to drive.

	http://oss.oracle.com/~mkp/docs/dix-draft.pdf

-- 
Martin K. Petersen	Oracle Linux Engineering

      reply	other threads:[~2010-09-10  3:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-09  3:36 scsi_cmnd data_buffer checksum Anil kumar
2010-09-09  8:00 ` Christof Schmitt
2010-09-09  8:35   ` Anil kumar
2010-09-09  8:51     ` Christof Schmitt
2010-09-09  9:09       ` Anil kumar
2010-09-09  9:29         ` Christof Schmitt
2010-09-09 13:23         ` Martin K. Petersen
2010-09-09 19:34           ` Anil kumar
2010-09-10  3:33             ` Martin K. Petersen [this message]

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