[SCSI] iscsi_tcp: Enable any size command

Let through upto the largest command of 260 defined by the scsi standard.
iscsi core supports this already. Now that the scsi-ml supports it we can
start using large commands.

[jejb:rejections fixed up]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

2 files changed, 3 insertions, 2 deletions

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 7c4ee39a1c43..0bd8b3dc3c19 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -1864,7 +1864,7 @@ iscsi_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
         shost->max_lun = iscsi_max_lun;
         shost->max_id = 0;
         shost->max_channel = 0;
-        shost->max_cmd_len = 16;
+        shost->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
         shost->can_queue = cmds_max;
 
         if (iscsi_host_add(shost, NULL))
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
index e0593bfae622..f2a2c1169486 100644
--- a/include/scsi/iscsi_proto.h
+++ b/include/scsi/iscsi_proto.h
@@ -22,6 +22,7 @@
 #define ISCSI_PROTO_H
 
 #include <linux/types.h>
+#include <scsi/scsi.h>
 
 #define ISCSI_DRAFT20_VERSION   0x00
 
@@ -156,7 +157,7 @@ struct iscsi_ecdb_ahdr {
         uint8_t ahstype;
         uint8_t reserved;
         /* 4-byte aligned extended CDB spillover */
-        uint8_t ecdb[260 - ISCSI_CDB_SIZE];
+        uint8_t ecdb[SCSI_MAX_VARLEN_CDB_SIZE - ISCSI_CDB_SIZE];
 };
 
 /* SCSI Response Header */