[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>

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

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;