bnx2: Optimize fast-path tx and rx work.

Add hw_tx_cons_ptr and hw_rx_cons_ptr to speed up the retreival of
the tx and rx consumer index, since the MSI-X and default status
blocks have different structures.

Combine status_blk and status_blk_msix into a union.  We'll only use
one type of status block for each vector.

Separate the code to detect more rx and tx work from the code to
detect link related work.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 1c5ce80f6269..362bef6ff5ff 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6609,8 +6609,12 @@ struct bnx2_rx_ring_info {
 struct bnx2_napi {
 	struct napi_struct	napi		____cacheline_aligned;
 	struct bnx2		*bp;
-	struct status_block	*status_blk;
-	struct status_block_msix	*status_blk_msix;
+	union {
+		struct status_block		*msi;
+		struct status_block_msix	*msix;
+	} status_blk;
+	u16			*hw_tx_cons_ptr;
+	u16			*hw_rx_cons_ptr;
 	u32 			last_status_idx;
 	u32			int_num;
 
@@ -6759,7 +6763,6 @@ struct bnx2 {
 
 	u32			stats_ticks;
 
-	struct status_block	*status_blk;
 	dma_addr_t		status_blk_mapping;
 
 	struct statistics_block	*stats_blk;