Messages in this thread Patch in this message | | | From | Calvin Owens <> | Subject | [PATCH v2] mlx5: Add ndo_poll_controller() implementation | Date | Tue, 27 Sep 2016 15:23:27 -0700 |
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This implements ndo_poll_controller in net_device_ops callback for mlx5, which is necessary to use netconsole with this driver.
Cc: Saeed Mahameed <saeedm@dev.mellanox.co.il> Signed-off-by: Calvin Owens <calvinowens@fb.com> --- Changes in v2: * Only iterate channels to avoid redundant napi_schedule() calls
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 2459c7f..830b8d0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -2786,6 +2786,20 @@ static void mlx5e_tx_timeout(struct net_device *dev) schedule_work(&priv->tx_timeout_work); } +#ifdef CONFIG_NET_POLL_CONTROLLER +/* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without + * reenabling interrupts. + */ +static void mlx5e_netpoll(struct net_device *dev) +{ + struct mlx5e_priv *priv = netdev_priv(dev); + int i; + + for (i = 0; i < priv->params.num_channels; i++) + napi_schedule(&priv->channel[i]->napi); +} +#endif + static const struct net_device_ops mlx5e_netdev_ops_basic = { .ndo_open = mlx5e_open, .ndo_stop = mlx5e_close, @@ -2805,6 +2819,9 @@ static const struct net_device_ops mlx5e_netdev_ops_basic = { .ndo_rx_flow_steer = mlx5e_rx_flow_steer, #endif .ndo_tx_timeout = mlx5e_tx_timeout, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = mlx5e_netpoll, +#endif }; static const struct net_device_ops mlx5e_netdev_ops_sriov = { @@ -2836,6 +2853,9 @@ static const struct net_device_ops mlx5e_netdev_ops_sriov = { .ndo_set_vf_link_state = mlx5e_set_vf_link_state, .ndo_get_vf_stats = mlx5e_get_vf_stats, .ndo_tx_timeout = mlx5e_tx_timeout, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = mlx5e_netpoll, +#endif }; static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) -- 2.9.3
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