[SCSI] bfa: add dynamic queue selection

Add new bfa functionality to support dynamic queue selection (IO redirection).
IO redirection can only be enabled when QoS is disabled.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

3 files changed, 21 insertions, 2 deletions

diff --git a/drivers/scsi/bfa/include/bfa_fcpim.h b/drivers/scsi/bfa/include/bfa_fcpim.h
index 04789795fa53..4bc9453081df 100644
--- a/drivers/scsi/bfa/include/bfa_fcpim.h
+++ b/drivers/scsi/bfa/include/bfa_fcpim.h
@@ -42,6 +42,24 @@ u16	bfa_fcpim_qdepth_get(struct bfa_s *bfa);
 bfa_status_t bfa_fcpim_get_modstats(struct bfa_s *bfa,
                         struct bfa_fcpim_stats_s *modstats);
 bfa_status_t bfa_fcpim_clr_modstats(struct bfa_s *bfa);
+void bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state);
+void bfa_fcpim_update_ioredirect(struct bfa_s *bfa);
+void bfa_cb_ioredirect_state_change(void *hcb_bfad, bfa_boolean_t ioredirect);
+
+#define bfa_fcpim_ioredirect_enabled(__bfa)                             \
+        (((struct bfa_fcpim_mod_s *)(BFA_FCPIM_MOD(__bfa)))->ioredirect)
+
+#define bfa_fcpim_get_next_reqq(__bfa, __qid)                           \
+{                                                                       \
+        struct bfa_fcpim_mod_s *__fcpim = BFA_FCPIM_MOD(__bfa);         \
+        __fcpim->reqq++;                                                \
+        __fcpim->reqq &= (BFI_IOC_MAX_CQS - 1);                          \
+        *(__qid) = __fcpim->reqq;                                       \
+}
+
+#define bfa_iocfc_map_msg_to_qid(__msg, __qid)                          \
+        *(__qid) = (u8)((__msg) & (BFI_IOC_MAX_CQS - 1));
+
 
 /*
  * bfa itnim API functions
@@ -56,6 +74,7 @@ void		bfa_itnim_get_stats(struct bfa_itnim_s *itnim,
                         struct bfa_itnim_hal_stats_s *stats);
 void            bfa_itnim_clear_stats(struct bfa_itnim_s *itnim);
 
+#define bfa_itnim_get_reqq(__ioim) (((struct bfa_ioim_s *)__ioim)->itnim->reqq)
 
 /**
  *              BFA completion callback for bfa_itnim_online().
@@ -156,4 +175,3 @@ void		bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
                                   enum bfi_tskim_status tsk_status);
 
 #endif /* __BFA_FCPIM_H__ */
-
diff --git a/drivers/scsi/bfa/include/bfa_svc.h b/drivers/scsi/bfa/include/bfa_svc.h
index 1349b99a3c6d..7840943d73b0 100644
--- a/drivers/scsi/bfa/include/bfa_svc.h
+++ b/drivers/scsi/bfa/include/bfa_svc.h
@@ -215,6 +215,7 @@ bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa,
                 bfa_cb_pport_t cbfn, void *cbarg);
 bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn,
                 void *cbarg);
+bfa_boolean_t bfa_fcport_is_qos_enabled(struct bfa_s *bfa);
 
 /*
  * bfa rport API functions
diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_driver.h b/drivers/scsi/bfa/include/defs/bfa_defs_driver.h
index 50382dd2ab41..7d00d00d3969 100644
--- a/drivers/scsi/bfa/include/defs/bfa_defs_driver.h
+++ b/drivers/scsi/bfa/include/defs/bfa_defs_driver.h
@@ -29,7 +29,7 @@ struct bfa_driver_stats_s {
     u16    tm_target_reset;
     u16    tm_bus_reset;
     u16    ioc_restart;        /*  IOC restart count */
-    u16    io_pending;         /*  outstanding io count per-IOC */
+    u16    rsvd;
     u64    control_req;
     u64    input_req;
     u64    output_req;