commit 4d7db04a7a69099accd84984a78c64d2178252f1
author James Bottomley <James.Bottomley@steeleye.com> Fri Mar 31 20:07:45 2006 -0600
committer James Bottomley <jejb@mulgrave.il.steeleye.com> Thu Apr 13 10:13:31 2006 -0500
tree 4b447d05c77290bffe88339915da1186910234a3
parent d637c4543fdc86cbef5805c679d24bb665172a7d

[SCSI] add SCSI_UNKNOWN and LUN transfer limit restrictions

Original From: Ingo Flaschberger <if@xip.at>

To support the RA4100 array from Compaq.

This patch now correctly handles SCSI_UNKNOWN types with regard to
BLIST_REPORTLUNS2 (allow it) and cdb[1] LUN inclusion (don't).

It also allows a BLIST_MAX_512 flag to restrict the maximum transfer
length to 512 blocks (apparently this is an RA4100 problem).

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/scsi.c

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 32979fe..73994e2 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -565,7 +565,8 @@
 	/* 
 	 * If SCSI-2 or lower, store the LUN value in cmnd.
 	 */
-	if (cmd->device->scsi_level <= SCSI_2) {
+	if (cmd->device->scsi_level <= SCSI_2 &&
+	    cmd->device->scsi_level != SCSI_UNKNOWN) {
 		cmd->cmnd[1] = (cmd->cmnd[1] & 0x1f) |
 			       (cmd->device->lun << 5 & 0xe0);
 	}