[PATCH] add protocol definitions

[James Bottomley <James.Bottomley@HansenPartnership.com>]

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>
---
 include/scsi/scsi.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 702fcfe..6e4561f 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -215,6 +215,20 @@ 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);
 
-- 
1.5.3.8