diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c index 35e188cf4ea4..87827477d38c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c @@ -7,7 +7,7 @@ #include "en/params.h" #include <net/xdp_sock.h> -int mlx5e_xsk_async_xmit(struct net_device *dev, u32 qid) +int mlx5e_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_params *params = &priv->channels.params; @@ -26,6 +26,13 @@ int mlx5e_xsk_async_xmit(struct net_device *dev, u32 qid) return -ENXIO; if (!napi_if_scheduled_mark_missed(&c->napi)) { + /* To avoid WQE overrun, don't post a NOP if XSKICOSQ is not + * active and not polled by NAPI. Return 0, because the upcoming + * activate will trigger the IRQ for us. + */ + if (unlikely(!test_bit(MLX5E_SQ_STATE_ENABLED, &c->xskicosq.state))) + return 0; + spin_lock(&c->xskicosq_lock); mlx5e_trigger_irq(&c->xskicosq); spin_unlock(&c->xskicosq_lock); |