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[net-next,V8,10/16] mlx5: register a memory model when XDP is enabled

Message ID 152249799761.28297.9006051029822981410.stgit@firesoul
State Changes Requested, archived
Delegated to: David Miller
Headers show
Series XDP redirect memory return API | expand

Commit Message

Jesper Dangaard Brouer March 31, 2018, 12:06 p.m. UTC 
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 <brouer@redhat.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c |    8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 1b48dec67abf..16dddfa481af 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -510,6 +510,14 @@  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);