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authorBoaz Harrosh <bharrosh@panasas.com>2009-04-19 19:17:54 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-27 11:05:49 -0500
commite9da4d7f731dafc2b93ce7b31aa09c4d935ef978 (patch)
tree5394e6dfe88585cab608586f3cd2deb382c27f32 /drivers/scsi
parentf8d3a644bec74fd55dbfb11f95af7bf98fa963dc (diff)
[SCSI] libosd: OSD2r05: on-the-wire changes for latest OSD2 revision 5.
OSC's OSD2 target: [git clone git://git.open-osd.org/osc-osd/ master] (Initiator code prior to this patch must use: "git checkout CDB_VER_OSD2r01" in the target tree above) This is a summery of the wire changes: * OSDv2_ADDITIONAL_CDB_LENGTH == 192 => 228 (Total CDB is now 236 bytes) * Attributes List Element Header grew, so attribute values are 8 bytes aligned. * Cryptographic keys and signatures are 20 => 32 * Few new definitions. (Still missing new standard definitions attribute values, these do not change wire format and will be added later when needed) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/osd/osd_initiator.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index f61ab84ad20..1ce6b24abab 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -263,7 +263,12 @@ static int _osd_req_alist_elem_decode(struct osd_request *or,
oa->attr_page = be32_to_cpu(attr->attr_page);
oa->attr_id = be32_to_cpu(attr->attr_id);
- oa->val_ptr = attr->attr_val;
+ /* OSD2: For convenience, on empty attributes, we return 8 bytes
+ * of zeros here. This keeps the same behaviour with OSD2r04,
+ * and is nice with null terminating ASCII fields.
+ * oa->val_ptr == NULL marks the end-of-list, or error.
+ */
+ oa->val_ptr = likely(oa->len) ? attr->attr_val : attr->reserved;
}
return inc;
}