diff options
| author |   Tariq Toukan <tariqt@mellanox.com> | 2018-11-21 13:56:17 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-12-20 22:54:17 -0800 |
| commit | 4fb2f516186ea25dea326f97880431e14a5b9e9d (patch) | |
| tree | 021948e42b01b5703b67e1e4f8b3843acb89a941 /drivers/net | |
| parent | net/mlx5e: TX, Print opcode in error CQE warning (diff) | |
| download | linux-dev-4fb2f516186ea25dea326f97880431e14a5b9e9d.tar.xz linux-dev-4fb2f516186ea25dea326f97880431e14a5b9e9d.zip | |
net/mlx5e: XDP, Precede XDP-related operations in RQ poll by a loaded program check
At the end of the RQ polling loop, some XDP-related operations
might be required. Before checking them one by one, check if
an XDP program is even loaded.
Combine all the checks and operations in a single function in xdp files.
This saves unnecessary checks for non-XDP flows.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 15 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 12 |
3 files changed, 18 insertions, 11 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c index ad6d471d00dd..cf22ea529c53 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c @@ -305,3 +305,18 @@ int mlx5e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, return n - drops; } + +void mlx5e_xdp_rx_poll_complete(struct mlx5e_rq *rq) +{ + struct mlx5e_xdpsq *xdpsq = &rq->xdpsq; + + if (xdpsq->doorbell) { + mlx5e_xmit_xdp_doorbell(xdpsq); + xdpsq->doorbell = false; + } + + if (xdpsq->redirect_flush) { + xdp_do_flush_map(); + xdpsq->redirect_flush = false; + } +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h index 6dfab045925f..eecc0392fcff 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h @@ -44,7 +44,7 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di, void *va, u16 *rx_headroom, u32 *len); bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq); void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq); - +void mlx5e_xdp_rx_poll_complete(struct mlx5e_rq *rq); bool mlx5e_xmit_xdp_frame(struct mlx5e_xdpsq *sq, struct mlx5e_xdp_info *xdpi); int mlx5e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, u32 flags); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index cdce30a95c60..1d0bb5ff8c26 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -1190,7 +1190,6 @@ mpwrq_cqe_out: int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget) { struct mlx5e_rq *rq = container_of(cq, struct mlx5e_rq, cq); - struct mlx5e_xdpsq *xdpsq = &rq->xdpsq; struct mlx5_cqe64 *cqe; int work_done = 0; @@ -1221,15 +1220,8 @@ int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget) } while ((++work_done < budget) && (cqe = mlx5_cqwq_get_cqe(&cq->wq))); out: - if (xdpsq->doorbell) { - mlx5e_xmit_xdp_doorbell(xdpsq); - xdpsq->doorbell = false; - } - - if (xdpsq->redirect_flush) { - xdp_do_flush_map(); - xdpsq->redirect_flush = false; - } + if (rq->xdp_prog) + mlx5e_xdp_rx_poll_complete(rq); mlx5_cqwq_update_db_record(&cq->wq); |