netdev - [PATCH 6/7] mlx4_en: performing CLOSE_PORT at the end of tear-down process

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Thu, 01 Oct 2009 16:34:08 +0200
From:	Yevgeny Petrilin <yevgenyp@...lanox.co.il>
To:	davem@...emloft.net
CC:	netdev@...r.kernel.org
Subject: [PATCH 6/7] mlx4_en: performing CLOSE_PORT at the end of tear-down
 process

As required by ConnectX PRM.
Not doing it might cause races in the HW during tear down process. 

Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
---
 drivers/net/mlx4/en_netdev.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 13fc6f0..b1e80d8 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -711,9 +711,8 @@ void mlx4_en_stop_port(struct net_device *dev)
 	netif_tx_stop_all_queues(dev);
 	netif_tx_unlock_bh(dev);
 
-	/* close port*/
+	/* Set port as not active */
 	priv->port_up = false;
-	mlx4_CLOSE_PORT(mdev->dev, priv->port);
 
 	/* Unregister Mac address for the port */
 	mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
@@ -738,6 +737,9 @@ void mlx4_en_stop_port(struct net_device *dev)
 			msleep(1);
 		mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
 	}
+
+	/* close port*/
+	mlx4_CLOSE_PORT(mdev->dev, priv->port);
 }
 
 static void mlx4_en_restart(struct work_struct *work)
-- 
1.6.1.3


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html