[PATCH v2 net-next] mlx5: Add ndo_poll_controller() implementation
flat view
STALE3673d
REVIEWED: 1 (0M)
From: Calvin Owens <hidden>
Date: 2016-09-29 04:46:50
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
1 review trailer.
This implements ndo_poll_controller in net_device_ops callbacks for mlx5, which is necessary to use netconsole with this driver. Acked-By: Saeed Mahameed <redacted> Signed-off-by: Calvin Owens <redacted> --- 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 b58cfe3..7eaf380 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c@@ -3188,6 +3188,20 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp) } } +#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,
@@ -3208,6 +3222,9 @@ static const struct net_device_ops mlx5e_netdev_ops_basic = { #endif .ndo_tx_timeout = mlx5e_tx_timeout, .ndo_xdp = mlx5e_xdp, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = mlx5e_netpoll, +#endif }; static const struct net_device_ops mlx5e_netdev_ops_sriov = {
@@ -3240,6 +3257,9 @@ static const struct net_device_ops mlx5e_netdev_ops_sriov = { .ndo_get_vf_stats = mlx5e_get_vf_stats, .ndo_tx_timeout = mlx5e_tx_timeout, .ndo_xdp = mlx5e_xdp, +#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