Message ID | 1421879031-604-1-git-send-email-chris.j.arges@canonical.com |
---|---|
State | New |
Headers | show |
On Wed, Jan 21, 2015 at 04:23:51PM -0600, Chris J Arges wrote: > From: Or Gerlitz <ogerlitz@mellanox.com> > > BugLink: http://bugs.launchpad.net/bugs/1407760 > > This is currently missing, which results in a crash when one attempts > to set VXLAN tunnel over the mlx4_en when acting as PF. > > [ 2408.785472] BUG: unable to handle kernel NULL pointer dereference at (null) > [...] > [ 2408.994104] Call Trace: > [ 2408.996584] [<ffffffffa021f7f5>] ? vxlan_get_rx_port+0xd6/0x103 [vxlan] > [ 2409.003316] [<ffffffffa021f71f>] ? vxlan_lowerdev_event+0xf2/0xf2 [vxlan] > [ 2409.010225] [<ffffffffa0630358>] mlx4_en_start_port+0x862/0x96a [mlx4_en] > [ 2409.017132] [<ffffffffa063070f>] mlx4_en_open+0x17f/0x1b8 [mlx4_en] > > While here, make sure to invoke vxlan_get_rx_port() only when VXLAN > offloads are actually enabled and not when they are only supported. > > Reported-by: Ido Shamay <idos@mellanox.com> > Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> > Signed-off-by: David S. Miller <davem@davemloft.net> > (backported from commit 9737c6ab7afbc950e997ef80cba2c40dbbd16ea4) > Signed-off-by: Eyal Perry <eyalpe@mellanox.com> > Acked-By: Chris J Arges <chris.j.arges@canonical.com> > --- > drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > index bc29746..c496b15 100644 > --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > @@ -1730,7 +1730,7 @@ int mlx4_en_start_port(struct net_device *dev) > mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); > > #ifdef CONFIG_MLX4_EN_VXLAN > - if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) > + if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) > vxlan_get_rx_port(dev); > #endif > priv->port_up = true; > @@ -2440,6 +2440,10 @@ static const struct net_device_ops mlx4_netdev_ops_master = { > .ndo_rx_flow_steer = mlx4_en_filter_rfs, > #endif > .ndo_get_phys_port_id = mlx4_en_get_phys_port_id, > +#ifdef CONFIG_MLX4_EN_VXLAN > + .ndo_add_vxlan_port = mlx4_en_add_vxlan_port, > + .ndo_del_vxlan_port = mlx4_en_del_vxlan_port, > +#endif > }; > > int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, Backport looks reasonable. Acked-by: Andy Whitcroft <apw@canonical.com> -apw
Yep looks more or less sane. This probably should come via stable but I understand that its hard to predict when. The change was in 3.18, so do we need a SRU for Utopic as well or will we wait for stable there? -Stefan
On Thu, Jan 22, 2015 at 01:16:56PM +0100, Stefan Bader wrote: > Yep looks more or less sane. This probably should come via stable but I > understand that its hard to predict when. The change was in 3.18, so do we need > a SRU for Utopic as well or will we wait for stable there? > > -Stefan > 3.16.7-ckt3 already included this fix. And this stable release has already been included in Utopic, so the fix is already in -proposed (kernel 3.16.0-30.40). Cheers, -- Luís
On Wed, Jan 21, 2015 at 04:23:51PM -0600, Chris J Arges wrote: > From: Or Gerlitz <ogerlitz@mellanox.com> > > BugLink: http://bugs.launchpad.net/bugs/1407760 > > This is currently missing, which results in a crash when one attempts > to set VXLAN tunnel over the mlx4_en when acting as PF. > > [ 2408.785472] BUG: unable to handle kernel NULL pointer dereference at (null) > [...] > [ 2408.994104] Call Trace: > [ 2408.996584] [<ffffffffa021f7f5>] ? vxlan_get_rx_port+0xd6/0x103 [vxlan] > [ 2409.003316] [<ffffffffa021f71f>] ? vxlan_lowerdev_event+0xf2/0xf2 [vxlan] > [ 2409.010225] [<ffffffffa0630358>] mlx4_en_start_port+0x862/0x96a [mlx4_en] > [ 2409.017132] [<ffffffffa063070f>] mlx4_en_open+0x17f/0x1b8 [mlx4_en] > > While here, make sure to invoke vxlan_get_rx_port() only when VXLAN > offloads are actually enabled and not when they are only supported. > > Reported-by: Ido Shamay <idos@mellanox.com> > Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> > Signed-off-by: David S. Miller <davem@davemloft.net> > (backported from commit 9737c6ab7afbc950e997ef80cba2c40dbbd16ea4) > Signed-off-by: Eyal Perry <eyalpe@mellanox.com> > Acked-By: Chris J Arges <chris.j.arges@canonical.com> > --- > drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > index bc29746..c496b15 100644 > --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c > @@ -1730,7 +1730,7 @@ int mlx4_en_start_port(struct net_device *dev) > mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); > > #ifdef CONFIG_MLX4_EN_VXLAN > - if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) > + if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) > vxlan_get_rx_port(dev); > #endif > priv->port_up = true; > @@ -2440,6 +2440,10 @@ static const struct net_device_ops mlx4_netdev_ops_master = { > .ndo_rx_flow_steer = mlx4_en_filter_rfs, > #endif > .ndo_get_phys_port_id = mlx4_en_get_phys_port_id, > +#ifdef CONFIG_MLX4_EN_VXLAN > + .ndo_add_vxlan_port = mlx4_en_add_vxlan_port, > + .ndo_del_vxlan_port = mlx4_en_del_vxlan_port, > +#endif > }; > > int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, > -- > 1.9.1 > > > -- > kernel-team mailing list > kernel-team@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/kernel-team Applied to Trusty master-next
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index bc29746..c496b15 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1730,7 +1730,7 @@ int mlx4_en_start_port(struct net_device *dev) mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); #ifdef CONFIG_MLX4_EN_VXLAN - if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) + if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) vxlan_get_rx_port(dev); #endif priv->port_up = true; @@ -2440,6 +2440,10 @@ static const struct net_device_ops mlx4_netdev_ops_master = { .ndo_rx_flow_steer = mlx4_en_filter_rfs, #endif .ndo_get_phys_port_id = mlx4_en_get_phys_port_id, +#ifdef CONFIG_MLX4_EN_VXLAN + .ndo_add_vxlan_port = mlx4_en_add_vxlan_port, + .ndo_del_vxlan_port = mlx4_en_del_vxlan_port, +#endif }; int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,