[SCSI] bfa: Add support for FC Arbitrated Loop topology.

- Add private loop topology support at 2G/4G/8G speeds with following
  limitations
  1. No support for multiple initiators in the loop
  2. No public loop support. If attached to a loop with an FL_Port,
     device continues to work as a private NL_Port in the loop
  3. No auto topology detection. User has to manually set the
     configured topology to loop if attaching to loop.
- When loop topology is configured, enabling FC port features
  QoS/Trunk/TRL are not allowed and vice versa.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index e0beb4d..bea821b 100644
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -24,6 +24,7 @@ typedef u64 wwn_t;
 
 #define WWN_NULL	(0)
 #define FC_SYMNAME_MAX	256	/*  max name server symbolic name size */
+#define FC_ALPA_MAX	128
 
 #pragma pack(1)
 
@@ -1015,6 +1016,10 @@ struct fc_symname_s {
 	u8         symname[FC_SYMNAME_MAX];
 };
 
+struct fc_alpabm_s {
+	u8	alpa_bm[FC_ALPA_MAX / 8];
+};
+
 /*
  * protocol default timeout values
  */