cciss: get rid of message related magic numbers

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

2 files changed, 12 insertions, 4 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index d60448941d53..1a4dff09c541 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2569,7 +2569,7 @@ static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
                 }
         } else if (cmd_type == TYPE_MSG) {
                 switch (cmd) {
-                case 0: /* ABORT message */
+                case CCISS_ABORT_MSG:
                         c->Request.CDBLen = 12;
                         c->Request.Type.Attribute = ATTR_SIMPLE;
                         c->Request.Type.Direction = XFER_WRITE;
@@ -2579,16 +2579,16 @@ static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
                         /* buff contains the tag of the command to abort */
                         memcpy(&c->Request.CDB[4], buff, 8);
                         break;
-                case 1: /* RESET message */
+                case CCISS_RESET_MSG:
                         c->Request.CDBLen = 16;
                         c->Request.Type.Attribute = ATTR_SIMPLE;
                         c->Request.Type.Direction = XFER_NONE;
                         c->Request.Timeout = 0;
                         memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
                         c->Request.CDB[0] = cmd;        /* reset */
-                        c->Request.CDB[1] = 0x03;       /* reset a target */
+                        c->Request.CDB[1] = CCISS_RESET_TYPE_TARGET;
                         break;
-                case 3: /* No-Op message */
+                case CCISS_NOOP_MSG:
                         c->Request.CDBLen = 1;
                         c->Request.Type.Attribute = ATTR_SIMPLE;
                         c->Request.Type.Direction = XFER_WRITE;
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index a2e68d21efe3..3b20c31d746d 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -142,6 +142,14 @@ typedef struct _ReadCapdata_struct_16
 #define BMIC_CACHE_FLUSH 0xc2
 #define CCISS_CACHE_FLUSH 0x01  /* C2 was already being used by CCISS */
 
+#define CCISS_ABORT_MSG 0x00
+#define CCISS_RESET_MSG 0x01
+#define CCISS_RESET_TYPE_CONTROLLER 0x00
+#define CCISS_RESET_TYPE_BUS 0x01
+#define CCISS_RESET_TYPE_TARGET 0x03
+#define CCISS_RESET_TYPE_LUN 0x04
+#define CCISS_NOOP_MSG 0x03
+
 /* Command List Structure */
 #define CTLR_LUNID "\0\0\0\0\0\0\0\0"