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| 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.h | |
| parent | 7117132b22538d24728295ffafa183a0a782fe03 (diff) | |
| download | linux-39d6443c8daf9fefcfcf89de7ae87240956a0b84.tar.bz2 | |
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.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 26911b15f8fe..0a02b804b2fe 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -407,10 +407,7 @@ struct mlx5e_dma_info { dma_addr_t addr; union { struct page *page; - struct { - u64 handle; - void *data; - } xsk; + struct xdp_buff *xsk; }; }; @@ -623,7 +620,6 @@ struct mlx5e_rq { } mpwqe; }; struct { - u16 umem_headroom; u16 headroom; u32 frame0_sz; u8 map_dir; /* dma map direction */ @@ -656,7 +652,6 @@ struct mlx5e_rq { struct page_pool *page_pool; /* AF_XDP zero-copy */ - struct zero_copy_allocator zca; struct xdp_umem *umem; struct work_struct recover_work; |