[bpf-next V4 PATCH 09/15] mlx5: register a memory model when XDP is enabled
flat view
STALE3143d
SUPERSEDED
From: Jesper Dangaard Brouer <hidden>
Date: 2018-03-22 14:21:55
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
Status: Superseded by v11 (posted 2018-04-17). [go to v11]
Revision v4 (11 revisions archived).
Revisions (11)
Now all the users of ndo_xdp_xmit have been converted to use xdp_return_frame.
This enable a different memory model, thus activating another code path
in the xdp_return_frame API.
V2: Fixed issues pointed out by Tariq.
Signed-off-by: Jesper Dangaard Brouer <redacted>
---
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index da94c8cba5ee..2e4ca0f15b62 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c@@ -506,6 +506,14 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, rq->mkey_be = c->mkey_be; } + /* This must only be activate for order-0 pages */ + if (rq->xdp_prog) { + err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq, + MEM_TYPE_PAGE_ORDER0, NULL); + if (err) + goto err_rq_wq_destroy; + } + for (i = 0; i < wq_sz; i++) { struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);