netdev - [PATCH resend] bnx2x: avoid TX timeout when stopping device

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Message-ID: <20100517123406.GA2504@dhcp-lab-161.englab.brq.redhat.com>
Date:	Mon, 17 May 2010 14:34:06 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, Eilon Greenstein <eilong@...adcom.com>,
	Vladislav Zolotarov <vladz@...adcom.com>,
	Dmitry Kravkov <dmitry@...adcom.com>
Subject: [PATCH resend] bnx2x: avoid TX timeout when stopping device

When stop device call netif_carrier_off() just after disabling TX queue to
avoid possibility of netdev watchdog warning and ->ndo_tx_timeout() invocation.

Signed-off-by: Stanislaw Gruszka <sgruszka@...hat.com>
Acked-by: Eilon Greenstein <eilong@...adcom.com>
---
 drivers/net/bnx2x_main.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 2bc35c7..57ff5b3 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -8499,6 +8499,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 	/* Disable HW interrupts, NAPI and Tx */
 	bnx2x_netif_stop(bp, 1);
+	netif_carrier_off(bp->dev);
 
 	del_timer_sync(&bp->timer);
 	SHMEM_WR(bp, func_mb[BP_FUNC(bp)].drv_pulse_mb,
@@ -8524,8 +8525,6 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 	bp->state = BNX2X_STATE_CLOSED;
 
-	netif_carrier_off(bp->dev);
-
 	/* The last driver must disable a "close the gate" if there is no
 	 * parity attention or "process kill" pending.
 	 */
@@ -13431,6 +13430,7 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 	bp->rx_mode = BNX2X_RX_MODE_NONE;
 
 	bnx2x_netif_stop(bp, 0);
+	netif_carrier_off(bp->dev);
 
 	del_timer_sync(&bp->timer);
 	bp->stats_state = STATS_STATE_DISABLED;
@@ -13457,8 +13457,6 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 
 	bp->state = BNX2X_STATE_CLOSED;
 
-	netif_carrier_off(bp->dev);
-
 	return 0;
 }
 
-- 
1.5.5.6

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