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 | 7 |
1 files changed, 7 insertions, 0 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 9704634a87aa..87827477d38c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c @@ -26,6 +26,13 @@ int mlx5e_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags) 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); |