[SCSI] bfa: Introduced initiator based lun masking feature.

- Added support to enable initiator based lun masking.
- Initiator based Lun masking works similar to zoning where
  initiator port is allowed to see only those LUNs which are
  configured to be seen.

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

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index c224987b9c30..99fc913929b6 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -110,6 +110,7 @@ struct bfad_ioim_s;
 struct bfad_tskim_s;
 
 typedef void    (*bfa_fcpim_profile_t) (struct bfa_ioim_s *ioim);
+typedef bfa_boolean_t (*bfa_ioim_lm_proc_rsp_data_t) (struct bfa_ioim_s *ioim);
 
 struct bfa_fcpim_s {
         struct bfa_s            *bfa;
@@ -123,7 +124,7 @@ struct bfa_fcpim_s {
         u32                     path_tov;
         u16                     q_depth;
         u8                      reqq;           /*  Request queue to be used */
-        u8                      rsvd;
+        u8                      lun_masking_pending;
         struct list_head        itnim_q;        /*  queue of active itnim */
         struct list_head        ioim_resfree_q; /*  IOs waiting for f/w */
         struct list_head        ioim_comp_q;    /*  IO global comp Q    */
@@ -178,7 +179,9 @@ struct bfa_ioim_s {
         bfa_cb_cbfn_t           io_cbfn;        /*  IO completion handler */
         struct bfa_ioim_sp_s    *iosp;          /*  slow-path IO handling */
         u8                      reqq;           /*  Request queue for I/O */
+        u8                      mode;           /*  IO is passthrough or not */
         u64                     start_time;     /*  IO's Profile start val */
+        bfa_ioim_lm_proc_rsp_data_t proc_rsp_data; /* RSP data adjust */
 };
 
 struct bfa_ioim_sp_s {
@@ -258,6 +261,10 @@ struct bfa_itnim_s {
         (__ioim)->iotag |= k << BFA_IOIM_RETRY_TAG_OFFSET;              \
 } while (0)
 
+#define BFA_IOIM_TO_LPS(__ioim)         \
+        BFA_LPS_FROM_TAG(BFA_LPS_MOD(__ioim->bfa),      \
+                __ioim->itnim->rport->rport_info.lp_tag)
+
 static inline bfa_boolean_t
 bfa_ioim_maxretry_reached(struct bfa_ioim_s *ioim)
 {
@@ -407,4 +414,7 @@ void bfa_tskim_start(struct bfa_tskim_s *tskim,
 void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
                         enum bfi_tskim_status tsk_status);
 
+void    bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn,
+                        wwn_t rp_wwn, u16 rp_tag, u8 lp_tag);
+
 #endif /* __BFA_FCPIM_H__ */