[BNX2]: Add support for a new tx ring.

To separate TX IRQs into a different MSIX vector, we need to
support a new tx ring.  The original tx ring will still be used
when not using MSIX.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index d71ceb6..68fb590 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6529,6 +6529,9 @@
 
 #define BNX2_MAX_MSIX_HW_VEC	9
 #define BNX2_MAX_MSIX_VEC	1
+#define BNX2_BASE_VEC		0
+#define BNX2_TX_VEC		1
+#define BNX2_TX_INT_NUM	(BNX2_TX_VEC << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT)
 
 struct bnx2_irq {
 	irq_handler_t	handler;
@@ -6541,6 +6544,7 @@
 	struct napi_struct	napi		____cacheline_aligned;
 	struct bnx2		*bp;
 	struct status_block	*status_blk;
+	struct status_block_msix	*status_blk_msix;
 	u32 			last_status_idx;
 	u32			int_num;
 
@@ -6583,6 +6587,7 @@
 
 	u32		tx_prod_bseq __attribute__((aligned(L1_CACHE_BYTES)));
 	u16		tx_prod;
+	u8		tx_vec;
 	u32		tx_bidx_addr;
 	u32		tx_bseq_addr;