From 7d323bfdc056a9142b8bdbab88e4d3ac6e4989e4 Mon Sep 17 00:00:00 2001 From: Eilon Greenstein <eilong@broadcom.com> Date: Mon, 9 Nov 2009 06:09:35 +0000 Subject: [PATCH] bnx2x: Change coalescing granularity to 4us Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/bnx2x.h | 2 +- drivers/net/bnx2x_main.c | 13 +++++++------ 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h index c3b32f71e024..928942b74ce6 100644 --- a/drivers/net/bnx2x.h +++ b/drivers/net/bnx2x.h @@ -1191,7 +1191,7 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms, #define MAX_SP_DESC_CNT (SP_DESC_CNT - 1) -#define BNX2X_BTR 3 +#define BNX2X_BTR 1 #define MAX_SPQ_PENDING 8 diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index ed56973794e8..08e6a35cfc20 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -4928,21 +4928,21 @@ static void bnx2x_update_coalesce(struct bnx2x *bp) REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_SB_HC_TIMEOUT_U_OFFSET(port, sb_id, U_SB_ETH_RX_CQ_INDEX), - bp->rx_ticks/12); + bp->rx_ticks/(4 * BNX2X_BTR)); REG_WR16(bp, BAR_CSTRORM_INTMEM + CSTORM_SB_HC_DISABLE_U_OFFSET(port, sb_id, U_SB_ETH_RX_CQ_INDEX), - (bp->rx_ticks/12) ? 0 : 1); + (bp->rx_ticks/(4 * BNX2X_BTR)) ? 0 : 1); /* HC_INDEX_C_ETH_TX_CQ_CONS */ REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_SB_HC_TIMEOUT_C_OFFSET(port, sb_id, C_SB_ETH_TX_CQ_INDEX), - bp->tx_ticks/12); + bp->tx_ticks/(4 * BNX2X_BTR)); REG_WR16(bp, BAR_CSTRORM_INTMEM + CSTORM_SB_HC_DISABLE_C_OFFSET(port, sb_id, C_SB_ETH_TX_CQ_INDEX), - (bp->tx_ticks/12) ? 0 : 1); + (bp->tx_ticks/(4 * BNX2X_BTR)) ? 0 : 1); } } @@ -9016,8 +9016,9 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp) bp->rx_csum = 1; - bp->tx_ticks = 50; - bp->rx_ticks = 25; + /* make sure that the numbers are in the right granularity */ + bp->tx_ticks = (50 / (4 * BNX2X_BTR)) * (4 * BNX2X_BTR); + bp->rx_ticks = (25 / (4 * BNX2X_BTR)) * (4 * BNX2X_BTR); timer_interval = (CHIP_REV_IS_SLOW(bp) ? 5*HZ : HZ); bp->current_interval = (poll ? poll : timer_interval); -- GitLab