[SCSI] bfa: Enhancement for fcpim and IO tag handling.

- Enhancements to FCPIM module.
- Introduced IO tag management to allocate/release IOs to FCPIM module
  from a free IOtag pool.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfi_ms.h b/drivers/scsi/bfa/bfi_ms.h
index edb9256..263631d 100644
--- a/drivers/scsi/bfa/bfi_ms.h
+++ b/drivers/scsi/bfa/bfi_ms.h
@@ -40,6 +40,9 @@
 	u8	 sense_buf_len;	/*  SCSI sense length	    */
 	u16	rsvd_1;
 	u32	endian_sig;	/*  endian signature of host     */
+	__be16	num_ioim_reqs;
+	__be16	num_fwtio_reqs;
+	u8	rsvd[4];
 
 	/*
 	 * Request and response circular queue base addresses, size and