Andras Kovacs akovacs at fixstars.com writes:
Elliott, Robert (Server Storage Elliott at hp.com writes:
That is the data transferred for the command, not in the
command descriptor block itself.
Thank you. Then I guess I'll find the Paramerer List in the struct
scsi_data_buffer sdb
Andras == Andras Kovacs akov...@fixstars.com writes:
Thank you. Then I guess I'll find the Paramerer List in the struct
scsi_data_buffer sdb variable (within struct scsi_cmnd). Will check
on Monday.
Andras I've looked into it, but struct scsi_data_buffer doesn't contain
Andras a byte array
On Mon, Nov 10, 2014 at 11:44:39AM -0500, Martin K. Petersen wrote:
You'll have to traverse scatterlist and extract the descriptor from
there. You can use scsi_for_each_sg() to walk the list.
If you only care about in-kernel discards it's pretty easy since we only
issue a single descriptor.
Christoph == Christoph Hellwig h...@infradead.org writes:
Christoph Note that if the hardware doesn't actually implement UNMAP
Christoph and you have to emulate something you're probably better off
Christoph emulating WRITE SAME (16) with the UNMAP bit, as the format
Christoph is a lot easier to
Christoph Hellwig hch at infradead.org writes:
On Mon, Nov 10, 2014 at 11:44:39AM -0500, Martin K. Petersen wrote:
You'll have to traverse scatterlist and extract the descriptor from
there. You can use scsi_for_each_sg() to walk the list.
Thank you; I'm working on it.
If you only
Elliott, Robert (Server Storage Elliott at hp.com writes:
That is the data transferred for the command, not in the
command descriptor block itself.
Thank you. Then I guess I'll find the Paramerer List in the struct
scsi_data_buffer sdb variable (within struct scsi_cmnd). Will check on Monday.
-Original Message-
From: linux-scsi-ow...@vger.kernel.org [mailto:linux-scsi-
ow...@vger.kernel.org] On Behalf Of Andras Kovacs
Sent: Friday, 07 November, 2014 5:30 PM
To: linux-scsi@vger.kernel.org
Subject: UNMAP command parameter list
Hi all,
I'm trying to see what
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