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authorNicholas Bellinger <nab@linux-iscsi.org>2013-10-08 02:22:15 +0400
committerNicholas Bellinger <nab@linux-iscsi.org>2013-10-09 12:54:43 +0400
commit3f7a46c67440a7fa422919ab2059cbab838ca558 (patch)
tree40b9ad24651ca731c5436705ab80977e5458f3f5 /drivers/target
parent934a138e970e5af73d6f79469a1eb363572abbaa (diff)
downloadlinux-3f7a46c67440a7fa422919ab2059cbab838ca558.tar.xz
target: Allow non zero ListID in EXTENDED_COPY parameter list
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>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_xcopy.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 6b9774c1dc6c..fe985559eeb8 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -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
*/