netdev - [PATCH net 1/3] qlcnic: Stop traffic before performing loopback test

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Date:	Thu, 18 Apr 2013 14:10:04 -0400
From:	Shahed Shaikh <shahed.shaikh@...gic.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, Dept_NX_Linux_NIC_Driver@...gic.com,
	Jitendra Kalsaria <jitendra.kalsaria@...gic.com>
Subject: [PATCH net 1/3] qlcnic: Stop traffic before performing loopback test

From: Jitendra Kalsaria <jitendra.kalsaria@...gic.com>

Before conducting loopback test by sending packets, driver should stop transmit
queue and turn off carrier.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@...gic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@...gic.com>
---
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index cd5ae88..284d628 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1500,6 +1500,12 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 		}
 	} while ((adapter->ahw->linkup && ahw->has_link_events) != 1);
 
+	/* Make sure carrier is off and queue is stopped during loopback */
+	if (netif_running(netdev)) {
+		netif_carrier_off(netdev);
+		netif_stop_queue(netdev);
+	}
+
 	ret = qlcnic_do_lb_test(adapter, mode);
 
 	qlcnic_83xx_clear_lb_mode(adapter, mode);
-- 
1.5.6

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