From 29b12174ac14f110225d6d9ebb66c30df5023baf Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Thu, 23 Mar 2006 01:13:43 -0800 Subject: [PATCH] [BNX2]: Separate tx producer and consumer fields Put the tx producer and consumer fields in separate cache lines in the device structure, similar to the VJ net channel queue structure. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 1 + drivers/net/bnx2.h | 21 ++++++++++++--------- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 3f2eaf52d19..6ccacb5f254 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -48,6 +48,7 @@ #include #include #include +#include #include "bnx2.h" #include "bnx2_fw.h" diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index 60598849acd..b87925f6a22 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -3877,15 +3877,17 @@ struct bnx2 { #define USING_MSI_FLAG 0x20 #define ASF_ENABLE_FLAG 0x40 - struct tx_bd *tx_desc_ring; - struct sw_bd *tx_buf_ring; - u32 tx_prod_bseq; - u16 tx_prod; - u16 tx_cons; - int tx_ring_size; - - u16 hw_tx_cons; - u16 hw_rx_cons; + /* Put tx producer and consumer fields in separate cache lines. */ + + u32 tx_prod_bseq __attribute__((aligned(L1_CACHE_BYTES))); + u16 tx_prod; + + struct tx_bd *tx_desc_ring; + struct sw_bd *tx_buf_ring; + int tx_ring_size; + + u16 tx_cons __attribute__((aligned(L1_CACHE_BYTES))); + u16 hw_tx_cons; #ifdef BCM_VLAN struct vlan_group *vlgrp; @@ -3899,6 +3901,7 @@ struct bnx2 { u32 rx_prod_bseq; u16 rx_prod; u16 rx_cons; + u16 hw_rx_cons; u32 rx_csum; -- 2.11.4.GIT