diff options
| author | Tariq Toukan | 2018-10-14 13:46:57 +0200 |
|---|---|---|
| committer | Saeed Mahameed | 2018-12-21 07:54:19 +0100 |
| commit | 1feeab80078078186b5080fe15c51a5cce724a0e (patch) | |
| tree | a1b5f795c303483a9cace970cb7dc66ddb1e1495 /drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | |
| parent | net/mlx5e: XDP, Maintain a FIFO structure for xdp_info instances (diff) | |
| download | kernel-qcow2-linux-1feeab80078078186b5080fe15c51a5cce724a0e.tar.gz kernel-qcow2-linux-1feeab80078078186b5080fe15c51a5cce724a0e.tar.xz kernel-qcow2-linux-1feeab80078078186b5080fe15c51a5cce724a0e.zip | |
net/mlx5e: XDP, Add array for WQE info descriptors
Each xdp_wqe_info instance describes the number of data-segments
and WQEBBs of the WQE.
This is useful for a downstream patch that adds support for
Multi-Packet TX WQE feature.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 58 |
1 files changed, 37 insertions, 21 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c index fe8788a7744e..5e5e43ea9b53 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c @@ -199,19 +199,27 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq, struct mlx5e_rq *rq) get_cqe_opcode(cqe)); do { - struct mlx5e_xdp_info xdpi = - mlx5e_xdpi_fifo_pop(xdpi_fifo); + struct mlx5e_xdp_wqe_info *wi; + u16 ci, j; last_wqe = (sqcc == wqe_counter); - sqcc++; - - if (is_redirect) { - xdp_return_frame(xdpi.xdpf); - dma_unmap_single(sq->pdev, xdpi.dma_addr, - xdpi.xdpf->len, DMA_TO_DEVICE); - } else { - /* Recycle RX page */ - mlx5e_page_release(rq, &xdpi.di, true); + ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc); + wi = &sq->db.wqe_info[ci]; + + sqcc += wi->num_wqebbs; + + for (j = 0; j < wi->num_ds; j++) { + struct mlx5e_xdp_info xdpi = + mlx5e_xdpi_fifo_pop(xdpi_fifo); + + if (is_redirect) { + xdp_return_frame(xdpi.xdpf); + dma_unmap_single(sq->pdev, xdpi.dma_addr, + xdpi.xdpf->len, DMA_TO_DEVICE); + } else { + /* Recycle RX page */ + mlx5e_page_release(rq, &xdpi.di, true); + } } } while (!last_wqe); } while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq))); @@ -233,18 +241,26 @@ void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq, struct mlx5e_rq *rq) bool is_redirect = !rq; while (sq->cc != sq->pc) { - struct mlx5e_xdp_info xdpi = - mlx5e_xdpi_fifo_pop(xdpi_fifo); + struct mlx5e_xdp_wqe_info *wi; + u16 ci, i; - sq->cc++; + ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->cc); + wi = &sq->db.wqe_info[ci]; - if (is_redirect) { - xdp_return_frame(xdpi.xdpf); - dma_unmap_single(sq->pdev, xdpi.dma_addr, - xdpi.xdpf->len, DMA_TO_DEVICE); - } else { - /* Recycle RX page */ - mlx5e_page_release(rq, &xdpi.di, false); + sq->cc += wi->num_wqebbs; + + for (i = 0; i < wi->num_ds; i++) { + struct mlx5e_xdp_info xdpi = + mlx5e_xdpi_fifo_pop(xdpi_fifo); + + if (is_redirect) { + xdp_return_frame(xdpi.xdpf); + dma_unmap_single(sq->pdev, xdpi.dma_addr, + xdpi.xdpf->len, DMA_TO_DEVICE); + } else { + /* Recycle RX page */ + mlx5e_page_release(rq, &xdpi.di, false); + } } } } |