[SCSI] iscsi_transport: Added error status code for ping comp event

Defined error codes for ping completion status.

This patch take care of Mike Christie's commets

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 9c23ee8fd2d..eab830acf9e 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -261,7 +261,8 @@ struct iscsi_uevent {
                 } host_event;
                 struct msg_ping_comp {
                         uint32_t        host_no;
-                        uint32_t        status;
+                        uint32_t        status; /* enum
+                                                 * iscsi_ping_status_code */
                         uint32_t        pid;    /* unique ping id associated
                                                    with each ping request */
                         uint32_t        data_size;
@@ -483,6 +484,20 @@ enum iscsi_port_state {
         ISCSI_PORT_STATE_UP             = 0x2,
 };
 
+/* iSCSI PING status/error code */
+enum iscsi_ping_status_code {
+        ISCSI_PING_SUCCESS                      = 0,
+        ISCSI_PING_FW_DISABLED                  = 0x1,
+        ISCSI_PING_IPADDR_INVALID               = 0x2,
+        ISCSI_PING_LINKLOCAL_IPV6_ADDR_INVALID  = 0x3,
+        ISCSI_PING_TIMEOUT                      = 0x4,
+        ISCSI_PING_INVALID_DEST_ADDR            = 0x5,
+        ISCSI_PING_OVERSIZE_PACKET              = 0x6,
+        ISCSI_PING_ICMP_ERROR                   = 0x7,
+        ISCSI_PING_MAX_REQ_EXCEEDED             = 0x8,
+        ISCSI_PING_NO_ARP_RECEIVED              = 0x9,
+};
+
 #define iscsi_ptr(_handle) ((void*)(unsigned long)_handle)
 #define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr)