diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2017-06-19 18:36:30 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-09-03 06:34:08 +0300 |
| commit | 4cbb7558013a4f600eb1ca9ad34959d8912240e6 (patch) | |
| tree | 12a8d8d22b735d378d8a15f1beb435649f4cfc5c /drivers/net/ethernet/mellanox/mlx5/core | |
| parent | 4c2af5cc2bee32685883b55328d8b5ec80e1781f (diff) | |
net/mlx5e: NAPI busy-poll when UMR post is in progress
If a UMR post is in progress, it means that there's a missing
WQE in RQ, and that a completion will be shortly available in
ICO SQ completion queue. Prefer busy-poll to handle it as soon
as possible.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index fb3b83609aea..8af6577b7501 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -456,17 +456,16 @@ void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix) mlx5e_free_rx_mpwqe(rq, wi); } -#define RQ_CANNOT_POST(rq) \ - (!test_bit(MLX5E_RQ_STATE_ENABLED, &rq->state) || \ - test_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS, &rq->state)) - bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq) { struct mlx5_wq_ll *wq = &rq->wq; - if (unlikely(RQ_CANNOT_POST(rq))) + if (unlikely(!test_bit(MLX5E_RQ_STATE_ENABLED, &rq->state))) return false; + if (test_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS, &rq->state)) + return true; + while (!mlx5_wq_ll_is_full(wq)) { struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(wq, wq->head); int err; |