[SCSI] libfc: add fcoe_fc_els_lesb to fc_fcoe.h for FC-BB-5 LESB definitions

Add struct fcoe_fc_els_lesb as described in FC-BB-5 LESB for FCoE. It has
the same size as LESB defined in FC-FS-3 (struct fc_els_lesb) but members
have different meanings according to FC-BB-5.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h
index ccb3dbe..e6ad3d2 100644 (file)
--- a/include/scsi/fc/fc_fcoe.h
+++ b/include/scsi/fc/fc_fcoe.h
@@ -86,6 +86,18 @@ struct fcoe_crc_eof {
 #define FCOE_MIN_FRAME 46
 
 /*
+ * FCoE Link Error Status Block: T11 FC-BB-5 Rev2.0, Clause 7.10.
+ */
+struct fcoe_fc_els_lesb {
+       __be32          lesb_link_fail; /* link failure count */
+       __be32          lesb_vlink_fail; /* virtual link failure count */
+       __be32          lesb_miss_fka;  /* missing FIP keep-alive count */
+       __be32          lesb_symb_err;  /* symbol error during carrier count */
+       __be32          lesb_err_block; /* errored block count */
+       __be32          lesb_fcs_error; /* frame check sequence error count */
+};
+
+/*
  * fc_fcoe_set_mac - Store OUI + DID into MAC address field.
  * @mac: mac address to be set
  * @did: fc dest id to use