[SCSI] bfa: Introduced generic address len pair to represent DMA memory chunk.

- Avoid the use of hardware defined structure bfi_sge_s for DMA
  requests in host.

- Defined a generic address len pair to represent a DMA memory chunk
  (bfi_alen_s).

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

1 files changed, 10 insertions, 12 deletions

diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index c85182a704fb..62318d24f85e 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -112,18 +112,6 @@ struct bfa_dma_s {
 #define BFI_SMEM_CB_SIZE	0x200000U	/* ! 2MB for crossbow	*/
 #define BFI_SMEM_CT_SIZE	0x280000U	/* ! 2.5MB for catapult	*/
 
-
-#define bfa_dma_addr_set(dma_addr, pa)	\
-		__bfa_dma_addr_set(&dma_addr, (u64)pa)
-
-static inline void
-__bfa_dma_addr_set(union bfi_addr_u *dma_addr, u64 pa)
-{
-	dma_addr->a32.addr_lo = (__be32) pa;
-	dma_addr->a32.addr_hi = (__be32) (pa >> 32);
-}
-
-
 #define bfa_dma_be_addr_set(dma_addr, pa)	\
 		__bfa_dma_be_addr_set(&dma_addr, (u64)pa)
 static inline void
@@ -133,6 +121,16 @@ __bfa_dma_be_addr_set(union bfi_addr_u *dma_addr, u64 pa)
 	dma_addr->a32.addr_hi = cpu_to_be32(pa >> 32);
 }
 
+#define bfa_alen_set(__alen, __len, __pa)	\
+	__bfa_alen_set(__alen, __len, (u64)__pa)
+
+static inline void
+__bfa_alen_set(struct bfi_alen_s *alen, u32 len, u64 pa)
+{
+	alen->al_len = cpu_to_be32(len);
+	bfa_dma_be_addr_set(alen->al_addr, pa);
+}
+
 struct bfa_ioc_regs_s {
 	void __iomem *hfn_mbox_cmd;
 	void __iomem *hfn_mbox;