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| author | Maxim Mikityanskiy | 2019-06-26 16:35:35 +0200 |
|---|---|---|
| committer | Daniel Borkmann | 2019-06-27 22:53:28 +0200 |
| commit | a011b49f4ed7813777a15da12a426ab939c58f14 (patch) | |
| tree | 1d8529bdc872a9bae18caa591604f7c11b82752b /drivers/net/ethernet/mellanox/mlx5/core/en | |
| parent | net/mlx5e: XDP_TX from UMEM support (diff) | |
| download | kernel-qcow2-linux-a011b49f4ed7813777a15da12a426ab939c58f14.tar.gz kernel-qcow2-linux-a011b49f4ed7813777a15da12a426ab939c58f14.tar.xz kernel-qcow2-linux-a011b49f4ed7813777a15da12a426ab939c58f14.zip | |
net/mlx5e: Consider XSK in XDP MTU limit calculation
Use the existing mlx5e_get_linear_rq_headroom function to calculate the
headroom for mlx5e_xdp_max_mtu. This function takes the XSK headroom
into consideration, which will be used in the following patches.
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en')
4 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c index 50a458dc3836..0de908b12fcc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c @@ -9,8 +9,8 @@ static inline bool mlx5e_rx_is_xdp(struct mlx5e_params *params, return params->xdp_prog || xsk; } -static inline u16 mlx5e_get_linear_rq_headroom(struct mlx5e_params *params, - struct mlx5e_xsk_param *xsk) +u16 mlx5e_get_linear_rq_headroom(struct mlx5e_params *params, + struct mlx5e_xsk_param *xsk) { u16 headroom = NET_IP_ALIGN; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.h b/drivers/net/ethernet/mellanox/mlx5/core/en/params.h index ed420f3efe52..7f29b82dd8c2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.h @@ -11,6 +11,8 @@ struct mlx5e_xsk_param { u16 chunk_size; }; +u16 mlx5e_get_linear_rq_headroom(struct mlx5e_params *params, + struct mlx5e_xsk_param *xsk); u32 mlx5e_rx_get_linear_frag_sz(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk); u8 mlx5e_mpwqe_log_pkts_per_wqe(struct mlx5e_params *params); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c index 1364bdff702c..ee99efde9143 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c @@ -32,10 +32,11 @@ #include <linux/bpf_trace.h> #include "en/xdp.h" +#include "en/params.h" -int mlx5e_xdp_max_mtu(struct mlx5e_params *params) +int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk) { - int hr = NET_IP_ALIGN + XDP_PACKET_HEADROOM; + int hr = mlx5e_get_linear_rq_headroom(params, xsk); /* Let S := SKB_DATA_ALIGN(sizeof(struct skb_shared_info)). * The condition checked in mlx5e_rx_is_linear_skb is: diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h index 86db5ad49a42..9200cb9f499b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.h @@ -39,7 +39,8 @@ (sizeof(struct mlx5e_tx_wqe) / MLX5_SEND_WQE_DS) #define MLX5E_XDP_TX_DS_COUNT (MLX5E_XDP_TX_EMPTY_DS_COUNT + 1 /* SG DS */) -int mlx5e_xdp_max_mtu(struct mlx5e_params *params); +struct mlx5e_xsk_param; +int mlx5e_xdp_max_mtu(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk); bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di, void *va, u16 *rx_headroom, u32 *len); bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq); |