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target: Allow non zero ListID in EXTENDED_COPY parameter list

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This patch changes target_do_xcopy() to allow processing of non-zero
ListIDs in EXTENDED_COPY parameter list data, instead of returning
CHECK_CONDITION status.

As the copy offload implementation reports SNLID=1 (Supports No ListID)
in OPERATING PARAMETERS, any ListID value presented by the client is
currently ignored.

Also, properly extract list_id_usage for informational purposes.

Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2013-10-07 15:22:15 -07:00
parent 934a138e97
commit 3f7a46c674
1 changed files with 2 additions and 5 deletions
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7
drivers/target/target_core_xcopy.c
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@ -911,11 +911,8 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
}
list_id = p[0];
if (list_id != 0x00) {
pr_err("XCOPY with non zero list_id: 0x%02x\n", list_id);
goto out;
}
list_id_usage = (p[1] & 0x18);
list_id_usage = (p[1] & 0x18) >> 3;
/*
* Determine TARGET DESCRIPTOR LIST LENGTH + SEGMENT DESCRIPTOR LIST LENGTH
*/