[PATCH] mlx5: Add ndo_poll_controller() implementation
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STALE3676d
From: Calvin Owens <hidden>
Date: 2016-09-23 20:13:36
Also in:
lkml
Subsystem:
mellanox ethernet driver (mlx5e), mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This implements ndo_poll_controller in net_device_ops for mlx5, which is necessary to use netconsole with this driver. Signed-off-by: Calvin Owens <redacted> --- 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..439476f 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, nr_sq = priv->params.num_channels * priv->params.num_tc; + + for (i = 0; i < nr_sq; i++) + napi_schedule(priv->txq_to_sq_map[i]->cq.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)
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2.9.3