diff options
| author | Dragos Tatulea <dtatulea@nvidia.com> | 2024-11-07 21:43:55 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-11-11 19:28:18 -0800 |
| commit | 4f56868b7132bb3c7e5a2c1930b6402718248a35 (patch) | |
| tree | 9739aee55cae53af962fba27cf307891eb4d6e9e /drivers | |
| parent | 1a4b5885770401b7e8de6546760686dcd2d9b784 (diff) | |
net/mlx5e: SHAMPO, Change frag page setup order during allocation
Now that the UMR allocation has been simplified, it is no longer
possible to have a leftover page from a previous call to
mlx5e_build_shampo_hd_umr().
This patch simplifies the code by switching the order of operations:
first take the frag page and then increment the index. This is more
straightforward and it also paves the way for dropping the info
array.
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241107194357.683732-11-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 76a975667c77..637069c1b988 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -651,7 +651,7 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq, u16 pi, header_offset, err, wqe_bbs; u32 lkey = rq->mdev->mlx5e_res.hw_objs.mkey; u16 page_index = shampo->curr_page_index; - struct mlx5e_frag_page *frag_page; + struct mlx5e_frag_page *frag_page = NULL; struct mlx5e_dma_info *dma_info; struct mlx5e_umr_wqe *umr_wqe; int headroom, i; @@ -663,16 +663,14 @@ static int mlx5e_build_shampo_hd_umr(struct mlx5e_rq *rq, umr_wqe = mlx5_wq_cyc_get_wqe(&sq->wq, pi); build_ksm_umr(sq, umr_wqe, shampo->key, index, ksm_entries); - frag_page = &shampo->pages[page_index]; - WARN_ON_ONCE(ksm_entries & (MLX5E_SHAMPO_WQ_HEADER_PER_PAGE - 1)); for (i = 0; i < ksm_entries; i++, index++) { dma_info = &shampo->info[index]; header_offset = (index & (MLX5E_SHAMPO_WQ_HEADER_PER_PAGE - 1)) << MLX5E_SHAMPO_LOG_MAX_HEADER_ENTRY_SIZE; if (!(header_offset & (PAGE_SIZE - 1))) { - page_index = (page_index + 1) & (shampo->pages_per_wq - 1); frag_page = &shampo->pages[page_index]; + page_index = (page_index + 1) & (shampo->pages_per_wq - 1); err = mlx5e_page_alloc_fragmented(rq, frag_page); if (unlikely(err)) |