[SCSI] bfa: IOC fixes, check for IOC down condition.

Currently BFA was not checking for IOC down condition when issuing
getstats/clearstats

Add check to see if IOC is operational, before issuing
getstats/clearstats.

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

2 files changed, 18 insertions, 3 deletions

diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 2f09d17730cc..4d9a47ccffe9 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -1129,9 +1129,6 @@ bfa_ioc_download_fw(struct bfa_ioc_s *ioc, u32 boot_type,
         if (bfa_ioc_fwimg_get_size(ioc) < BFA_IOC_FWIMG_MINSZ)
                 boot_type = BFI_BOOT_TYPE_FLASH;
         fwimg = bfa_ioc_fwimg_get_chunk(ioc, chunkno);
-        fwimg[BFI_BOOT_TYPE_OFF / sizeof(u32)] = bfa_os_swap32(boot_type);
-        fwimg[BFI_BOOT_PARAM_OFF / sizeof(u32)] =
-                bfa_os_swap32(boot_param);
 
         pgnum = bfa_ioc_smem_pgnum(ioc, loff);
         pgoff = bfa_ioc_smem_pgoff(ioc, loff);
@@ -1166,6 +1163,14 @@ bfa_ioc_download_fw(struct bfa_ioc_s *ioc, u32 boot_type,
 
         bfa_reg_write(ioc->ioc_regs.host_page_num_fn,
                       bfa_ioc_smem_pgnum(ioc, 0));
+
+        /*
+         * Set boot type and boot param at the end.
+         */
+        bfa_mem_write(ioc->ioc_regs.smem_page_start, BFI_BOOT_TYPE_OFF,
+                        bfa_os_swap32(boot_type));
+        bfa_mem_write(ioc->ioc_regs.smem_page_start, BFI_BOOT_PARAM_OFF,
+                        bfa_os_swap32(boot_param));
 }
 
 static void
diff --git a/drivers/scsi/bfa/bfa_iocfc.c b/drivers/scsi/bfa/bfa_iocfc.c
index 6677f83f2c99..a76de2669bfc 100644
--- a/drivers/scsi/bfa/bfa_iocfc.c
+++ b/drivers/scsi/bfa/bfa_iocfc.c
@@ -801,6 +801,11 @@ bfa_iocfc_get_stats(struct bfa_s *bfa, struct bfa_iocfc_stats_s *stats,
                 return BFA_STATUS_DEVBUSY;
         }
 
+        if (!bfa_iocfc_is_operational(bfa)) {
+                bfa_trc(bfa, 0);
+                return BFA_STATUS_IOC_NON_OP;
+        }
+
         iocfc->stats_busy = BFA_TRUE;
         iocfc->stats_ret = stats;
         iocfc->stats_cbfn = cbfn;
@@ -821,6 +826,11 @@ bfa_iocfc_clear_stats(struct bfa_s *bfa, bfa_cb_ioc_t cbfn, void *cbarg)
                 return BFA_STATUS_DEVBUSY;
         }
 
+        if (!bfa_iocfc_is_operational(bfa)) {
+                bfa_trc(bfa, 0);
+                return BFA_STATUS_IOC_NON_OP;
+        }
+
         iocfc->stats_busy = BFA_TRUE;
         iocfc->stats_cbfn = cbfn;
         iocfc->stats_cbarg = cbarg;