[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, 16 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
index 76300befffbe..a796de935054 100644
--- a/drivers/scsi/bfa/bfa.h
+++ b/drivers/scsi/bfa/bfa.h
@@ -382,6 +382,22 @@ int bfa_iocfc_get_pbc_vports(struct bfa_s *bfa,
 #define bfa_get_fw_clock_res(__bfa)             \
         ((__bfa)->iocfc.cfgrsp->fwcfg.fw_tick_res)
 
+/*
+ * lun mask macros return NULL when min cfg is enabled and there is
+ * no memory allocated for lunmask.
+ */
+#define bfa_get_lun_mask(__bfa)                                 \
+        ((&(__bfa)->modules.dconf_mod)->min_cfg) ? NULL :       \
+         (&(BFA_DCONF_MOD(__bfa)->dconf->lun_mask))
+
+#define bfa_get_lun_mask_list(_bfa)                             \
+        ((&(_bfa)->modules.dconf_mod)->min_cfg) ? NULL :        \
+         (bfa_get_lun_mask(_bfa)->lun_list)
+
+#define bfa_get_lun_mask_status(_bfa)                           \
+        (((&(_bfa)->modules.dconf_mod)->min_cfg)                \
+         ? BFA_LUNMASK_MINCFG : ((bfa_get_lun_mask(_bfa))->status))
+
 void bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids);
 void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg);
 void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg);