diff options
author | Maxim Mikityanskiy <maximmi@nvidia.com> | 2022-01-28 13:13:11 +0200 |
---|---|---|
committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-03-18 13:51:13 -0700 |
commit | ddc87e7d477552084fd185b315a39d5067b01773 (patch) | |
tree | ce5d6d5bd37dda43e09d4d6e17294726b66883d7 /drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h | |
parent | ea5d49bdae8b4c9dcdac574eef96b1bd47000c2a (diff) |
net/mlx5e: Store DMA address inside struct page
Use page_pool_set_dma_addr() to store the DMA address of a page inside
struct page, in order to avoid passing struct mlx5e_dma_info to XDP
handlers. Previously, struct mlx5e_dma_info was used to pass both the
DMA address and the page, and it worked well for the single-fragment
case.
When XDP multi buffer is in use, and a fragmented xdp_frame has to be
transmitted, the driver needs to know the DMA addresses of fragments,
however, the array of fragments in struct skb_shared_info doesn't
contain them. In order to pass the DMA addresses, the driver puts them
into struct page itself, which is accessible from the array of fragments
in struct skb_shared_info. The existing XDP handlers are modified to
remove the dependency on struct mlx5e_dma_info.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h index 20d8af66c072..8a92cf007991 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h @@ -47,7 +47,7 @@ struct mlx5e_xsk_param; int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk); -bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di, +bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct page *page, struct bpf_prog *prog, struct xdp_buff *xdp); void mlx5e_xdp_mpwqe_complete(struct mlx5e_xdpsq *sq); bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq); |