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/txrx.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/txrx.h')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h index 210d23bf3701..c208ea307bff 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h @@ -44,10 +44,8 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget); int mlx5e_poll_ico_cq(struct mlx5e_cq *cq); /* RX */ -void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info); -void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, - struct mlx5e_dma_info *dma_info, - bool recycle); +void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct page *page); +void mlx5e_page_release_dynamic(struct mlx5e_rq *rq, struct page *page, bool recycle); INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq)); INDIRECT_CALLABLE_DECLARE(bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq)); int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget); |