diff options
author | Tariq Toukan <tariqt@nvidia.com> | 2023-04-17 15:19:00 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2023-04-19 10:59:27 +0300 |
commit | 27602319e32862717c15c32283a727dc5bed695d (patch) | |
tree | 3a75223a8e7f77cd04e90406f755fd3949903559 /drivers/net/ethernet/mellanox | |
parent | 63abf14e13ed09ead1d979949963fe08ced3a77c (diff) | |
download | linux-27602319e32862717c15c32283a727dc5bed695d.tar.xz |
net/mlx5e: RX, Take shared info fragment addition into a function
Introduce mlx5e_add_skb_shared_info_frag(), a function dedicated for
adding a fragment into a struct skb_shared_info object.
Use it in the Legacy RQ flow. Similar usage will be added in a
downstream patch by the corresponding Striding RQ flow.
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 1049805571c6..1118327f6467 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -471,6 +471,35 @@ static int mlx5e_refill_rx_wqes(struct mlx5e_rq *rq, u16 ix, int wqe_bulk) return i; } +static void +mlx5e_add_skb_shared_info_frag(struct mlx5e_rq *rq, struct skb_shared_info *sinfo, + struct xdp_buff *xdp, struct mlx5e_frag_page *frag_page, + u32 frag_offset, u32 len) +{ + skb_frag_t *frag; + + dma_addr_t addr = page_pool_get_dma_addr(frag_page->page); + + dma_sync_single_for_cpu(rq->pdev, addr + frag_offset, len, rq->buff.map_dir); + if (!xdp_buff_has_frags(xdp)) { + /* Init on the first fragment to avoid cold cache access + * when possible. + */ + sinfo->nr_frags = 0; + sinfo->xdp_frags_size = 0; + xdp_buff_set_frags_flag(xdp); + } + + frag = &sinfo->frags[sinfo->nr_frags++]; + __skb_frag_set_page(frag, frag_page->page); + skb_frag_off_set(frag, frag_offset); + skb_frag_size_set(frag, len); + + if (page_is_pfmemalloc(frag_page->page)) + xdp_buff_set_frag_pfmemalloc(xdp); + sinfo->xdp_frags_size += len; +} + static inline void mlx5e_add_skb_frag(struct mlx5e_rq *rq, struct sk_buff *skb, struct page *page, u32 frag_offset, u32 len, @@ -1694,35 +1723,12 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5e_wqe_frag_info *wi wi++; while (cqe_bcnt) { - skb_frag_t *frag; - frag_page = wi->frag_page; frag_consumed_bytes = min_t(u32, frag_info->frag_size, cqe_bcnt); - addr = page_pool_get_dma_addr(frag_page->page); - dma_sync_single_for_cpu(rq->pdev, addr + wi->offset, - frag_consumed_bytes, rq->buff.map_dir); - - if (!xdp_buff_has_frags(&mxbuf.xdp)) { - /* Init on the first fragment to avoid cold cache access - * when possible. - */ - sinfo->nr_frags = 0; - sinfo->xdp_frags_size = 0; - xdp_buff_set_frags_flag(&mxbuf.xdp); - } - - frag = &sinfo->frags[sinfo->nr_frags++]; - - __skb_frag_set_page(frag, frag_page->page); - skb_frag_off_set(frag, wi->offset); - skb_frag_size_set(frag, frag_consumed_bytes); - - if (page_is_pfmemalloc(frag_page->page)) - xdp_buff_set_frag_pfmemalloc(&mxbuf.xdp); - - sinfo->xdp_frags_size += frag_consumed_bytes; + mlx5e_add_skb_shared_info_frag(rq, sinfo, &mxbuf.xdp, frag_page, + wi->offset, frag_consumed_bytes); truesize += frag_info->frag_stride; cqe_bcnt -= frag_consumed_bytes; |