[SCSI] add protocol definitions

A lot of SCSI command replies have a protocol ID field.  Add
definitions for the interpretation of that from SPC-3.

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

1 files changed, 14 insertions, 0 deletions

diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 82251575a9b4..1f74bcd603fe 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -235,6 +235,20 @@ static inline int scsi_status_is_good(int status)
 #define TYPE_RBC            0x0e
 #define TYPE_NO_LUN         0x7f
 
+/* SCSI protocols; these are taken from SPC-3 section 7.5 */
+enum scsi_protocol {
+        SCSI_PROTOCOL_FCP = 0,  /* Fibre Channel */
+        SCSI_PROTOCOL_SPI = 1,  /* parallel SCSI */
+        SCSI_PROTOCOL_SSA = 2,  /* Serial Storage Architecture - Obsolete */
+        SCSI_PROTOCOL_SBP = 3,  /* firewire */
+        SCSI_PROTOCOL_SRP = 4,  /* Infiniband RDMA */
+        SCSI_PROTOCOL_ISCSI = 5,
+        SCSI_PROTOCOL_SAS = 6,
+        SCSI_PROTOCOL_ADT = 7,  /* Media Changers */
+        SCSI_PROTOCOL_ATA = 8,
+        SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
+};
+
 /* Returns a human-readable name for the device */
 extern const char * scsi_device_type(unsigned type);