[SCSI] libfc: provide space for LLD after remote port structure
Add pre-zeroed space after the allocation for fc_rport_priv
for use by the lower-level driver.
This is primarily for VN2VN FIP mode, but could be used in
other ways someday.
The space required is specified in lport->rport_priv_size.
Signed-off-by: Joe Eykholt <jeykholt@cisco.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/libfc.h b/include/scsi/libfc.h
index b0310b9..fcbee8c 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -799,6 +799,7 @@
* @mfs: The maximum Fibre Channel payload size
* @max_retry_count: The maximum retry attempts
* @max_rport_retry_count: The maximum remote port retry attempts
+ * @rport_priv_size: Size needed by driver after struct fc_rport_priv
* @lro_xid: The maximum XID for LRO
* @lso_max: The maximum large offload send size
* @fcts: FC-4 type mask
@@ -848,6 +849,7 @@
u32 mfs;
u8 max_retry_count;
u8 max_rport_retry_count;
+ u16 rport_priv_size;
u16 link_speed;
u16 link_supported_speeds;
u16 lro_xid;