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net/mlx5e: RX, Rename xdp_xmit_bitmap to a more generic name

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The xdp_xmit_bitmap currently serves only one purpose: to avoid
releasing pages that are still in use due to XDP TX.

A following patch will use this bitmap in a slightly different context
but for the same purpose. So rename the bitmap to a more generic name
that reflects the purpose not the context.

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Dragos Tatulea 2023-02-17 12:56:30 +02:00 committed by Saeed Mahameed
parent 6f57428460
commit 38a36efccd
3 changed files with 9 additions and 9 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -622,7 +622,7 @@ union mlx5e_alloc_units {
struct mlx5e_mpw_info {
u16 consumed_strides;
DECLARE_BITMAP(xdp_xmit_bitmap, MLX5_MPWRQ_MAX_PAGES_PER_WQE);
DECLARE_BITMAP(skip_release_bitmap, MLX5_MPWRQ_MAX_PAGES_PER_WQE);
union mlx5e_alloc_units alloc_units;
};

4
drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.c
View File

@ -120,7 +120,7 @@ int mlx5e_xsk_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
}
}
bitmap_zero(wi->xdp_xmit_bitmap, rq->mpwqe.pages_per_wqe);
bitmap_zero(wi->skip_release_bitmap, rq->mpwqe.pages_per_wqe);
wi->consumed_strides = 0;
umr_wqe->ctrl.opmod_idx_opcode =
@ -289,7 +289,7 @@ struct sk_buff *mlx5e_xsk_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq,
prog = rcu_dereference(rq->xdp_prog);
if (likely(prog && mlx5e_xdp_handle(rq, prog, mxbuf))) {
if (likely(__test_and_clear_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags)))
__set_bit(page_idx, wi->xdp_xmit_bitmap); /* non-atomic */
__set_bit(page_idx, wi->skip_release_bitmap); /* non-atomic */
return NULL; /* page/packet was consumed by XDP */
}

12
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
View File

@ -439,10 +439,10 @@ mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, bool recycle
int i;
/* A common case for AF_XDP. */
if (bitmap_full(wi->xdp_xmit_bitmap, rq->mpwqe.pages_per_wqe))
if (bitmap_full(wi->skip_release_bitmap, rq->mpwqe.pages_per_wqe))
return;
no_xdp_xmit = bitmap_empty(wi->xdp_xmit_bitmap, rq->mpwqe.pages_per_wqe);
no_xdp_xmit = bitmap_empty(wi->skip_release_bitmap, rq->mpwqe.pages_per_wqe);
if (rq->xsk_pool) {
struct xdp_buff **xsk_buffs = wi->alloc_units.xsk_buffs;
@ -452,11 +452,11 @@ mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, bool recycle
* the page to the userspace when the interface goes down.
*/
for (i = 0; i < rq->mpwqe.pages_per_wqe; i++)
if (no_xdp_xmit || !test_bit(i, wi->xdp_xmit_bitmap))
if (no_xdp_xmit || !test_bit(i, wi->skip_release_bitmap))
xsk_buff_free(xsk_buffs[i]);
} else {
for (i = 0; i < rq->mpwqe.pages_per_wqe; i++) {
if (no_xdp_xmit || !test_bit(i, wi->xdp_xmit_bitmap)) {
if (no_xdp_xmit || !test_bit(i, wi->skip_release_bitmap)) {
struct mlx5e_frag_page *frag_page;
frag_page = &wi->alloc_units.frag_pages[i];
@ -687,7 +687,7 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
sizeof(*umr_wqe->inline_mtts) * pad);
}
bitmap_zero(wi->xdp_xmit_bitmap, rq->mpwqe.pages_per_wqe);
bitmap_zero(wi->skip_release_bitmap, rq->mpwqe.pages_per_wqe);
wi->consumed_strides = 0;
umr_wqe->ctrl.opmod_idx_opcode =
@ -1970,7 +1970,7 @@ mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
mlx5e_fill_mxbuf(rq, cqe, va, rx_headroom, cqe_bcnt, &mxbuf);
if (mlx5e_xdp_handle(rq, prog, &mxbuf)) {
if (__test_and_clear_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags))
__set_bit(page_idx, wi->xdp_xmit_bitmap); /* non-atomic */
__set_bit(page_idx, wi->skip_release_bitmap); /* non-atomic */
return NULL; /* page/packet was consumed by XDP */
}