[SCSI] bfa: Add support for IO profiling.

- Made changes to support IO profiling.
- Added support to configure and query IO profiling info.

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

1 files changed, 18 insertions, 8 deletions

diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index 57b695ad4ee5..c224987b9c30 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -79,14 +79,22 @@ bfa_ioim_get_index(u32 n) {
         if (n >= (1UL)<<22)
                 return BFA_IOBUCKET_MAX - 1;
         n >>= 8;
-        if (n >= (1UL)<<16)
-                n >>= 16; pos += 16;
-        if (n >= 1 << 8)
-                n >>= 8; pos += 8;
-        if (n >= 1 << 4)
-                n >>= 4; pos += 4;
-        if (n >= 1 << 2)
-                n >>= 2; pos += 2;
+        if (n >= (1UL)<<16) {
+                n >>= 16;
+                pos += 16;
+        }
+        if (n >= 1 << 8) {
+                n >>= 8;
+                pos += 8;
+        }
+        if (n >= 1 << 4) {
+                n >>= 4;
+                pos += 4;
+        }
+        if (n >= 1 << 2) {
+                n >>= 2;
+                pos += 2;
+        }
         if (n >= 1 << 1)
                 pos += 1;
 
@@ -297,6 +305,8 @@ bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa,
                         struct bfa_itnim_iostats_s *stats, u8 lp_tag);
 void bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *fcpim_stats,
                         struct bfa_itnim_iostats_s *itnim_stats);
+bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time);
+bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa);
 
 #define bfa_fcpim_ioredirect_enabled(__bfa)                             \
         (((struct bfa_fcpim_s *)(BFA_FCPIM(__bfa)))->ioredirect)