diff options
| author | Björn Töpel <bjorn.topel@intel.com> | 2020-05-20 21:20:59 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-05-21 17:31:27 -0700 |
| commit | 39d6443c8daf9fefcfcf89de7ae87240956a0b84 (patch) | |
| tree | e42dfb8274fa542b0e014ed8a68fd467516b8055 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
| parent | 7117132b22538d24728295ffafa183a0a782fe03 (diff) | |
mlx5, xsk: Migrate to new MEM_TYPE_XSK_BUFF_POOL
Use the new MEM_TYPE_XSK_BUFF_POOL API in lieu of MEM_TYPE_ZERO_COPY in
mlx5e. It allows to drop a lot of code from the driver (which is now
common in AF_XDP core and was related to XSK RX frame allocation, DMA
mapping, etc.) and slightly improve performance (RX +0.8 Mpps, TX +0.4
Mpps).
rfc->v1: Put back the sanity check for XSK params, use XSK API to get
the total headroom size. (Maxim)
v1->v2: Fix DMA address handling, set XDP metadata to invalid. (Maxim)
v2->v3: Handle frame_sz, use xsk_buff_xdp_get_frame_dma, use xsk_buff
API for DMA sync on TX, add performance numbers. (Maxim)
v3->v4: Remove unused variable num_xsk_frames. (Jakub)
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200520192103.355233-12-bjorn.topel@gmail.com
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 0e4ca08ddca9..4041132723a3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -38,7 +38,7 @@ #include <linux/bpf.h> #include <linux/if_bridge.h> #include <net/page_pool.h> -#include <net/xdp_sock.h> +#include <net/xdp_sock_drv.h> #include "eswitch.h" #include "en.h" #include "en/txrx.h" @@ -374,7 +374,6 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, struct mlx5_core_dev *mdev = c->mdev; void *rqc = rqp->rqc; void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); - u32 num_xsk_frames = 0; u32 rq_xdp_ix; u32 pool_size; int wq_sz; @@ -414,7 +413,6 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, rq->buff.map_dir = rq->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE; rq->buff.headroom = mlx5e_get_rq_headroom(mdev, params, xsk); - rq->buff.umem_headroom = xsk ? xsk->headroom : 0; pool_size = 1 << params->log_rq_mtu_frames; switch (rq->wq_type) { @@ -428,10 +426,6 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq); - if (xsk) - num_xsk_frames = wq_sz << - mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk); - pool_size = MLX5_MPWRQ_PAGES_PER_WQE << mlx5e_mpwqe_get_log_rq_size(params, xsk); @@ -483,9 +477,6 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, wq_sz = mlx5_wq_cyc_get_size(&rq->wqe.wq); - if (xsk) - num_xsk_frames = wq_sz << rq->wqe.info.log_num_frags; - rq->wqe.info = rqp->frags_info; rq->buff.frame0_sz = rq->wqe.info.arr[0].frag_stride; @@ -526,19 +517,9 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, } if (xsk) { - rq->buff.frame0_sz = xsk_umem_xdp_frame_sz(umem); - - err = mlx5e_xsk_resize_reuseq(umem, num_xsk_frames); - if (unlikely(err)) { - mlx5_core_err(mdev, "Unable to allocate the Reuse Ring for %u frames\n", - num_xsk_frames); - goto err_free; - } - - rq->zca.free = mlx5e_xsk_zca_free; err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq, - MEM_TYPE_ZERO_COPY, - &rq->zca); + MEM_TYPE_XSK_BUFF_POOL, NULL); + xsk_buff_set_rxq_info(rq->umem, &rq->xdp_rxq); } else { /* Create a page_pool and register it with rxq */ pp_params.order = 0; |