diff options
| author |   Tariq Toukan <tariqt@mellanox.com> | 2020-04-30 14:32:45 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2020-07-16 16:36:54 -0700 |
| commit | 93761ca17edf83f4222ab5abda8bde837ea5a309 (patch) | |
| tree | 2ac4b23668f079ba0a71ee09bd2d8cac743d8a5d /drivers/net/ethernet/mellanox/mlx5/core/en/xsk | |
| parent | net/mlx5e: IPsec: Add Connect-X IPsec ESN update offload support (diff) | |
| download | linux-dev-93761ca17edf83f4222ab5abda8bde837ea5a309.tar.xz linux-dev-93761ca17edf83f4222ab5abda8bde837ea5a309.zip | |
net/mlx5e: XDP, Avoid indirect call in TX flow
Use INDIRECT_CALL_2() helper to avoid the cost of the indirect call
when/if CONFIG_RETPOLINE=y.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/xsk')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c index e0b3c61af93e..0dfbc96e952a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c @@ -6,6 +6,7 @@ #include "en/xdp.h" #include "en/params.h" #include <net/xdp_sock_drv.h> +#include <linux/indirect_call_wrapper.h> int mlx5e_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags) { @@ -75,8 +76,12 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget) xdpi.mode = MLX5E_XDP_XMIT_MODE_XSK; for (; budget; budget--) { - int check_result = sq->xmit_xdp_frame_check(sq); + int check_result = INDIRECT_CALL_2(sq->xmit_xdp_frame_check, + mlx5e_xmit_xdp_frame_check_mpwqe, + mlx5e_xmit_xdp_frame_check, + sq); struct xdp_desc desc; + bool ret; if (unlikely(check_result < 0)) { work_done = false; @@ -98,7 +103,9 @@ bool mlx5e_xsk_tx(struct mlx5e_xdpsq *sq, unsigned int budget) xsk_buff_raw_dma_sync_for_device(umem, xdptxd.dma_addr, xdptxd.len); - if (unlikely(!sq->xmit_xdp_frame(sq, &xdptxd, &xdpi, check_result))) { + ret = INDIRECT_CALL_2(sq->xmit_xdp_frame, mlx5e_xmit_xdp_frame_mpwqe, + mlx5e_xmit_xdp_frame, sq, &xdptxd, &xdpi, check_result); + if (unlikely(!ret)) { if (sq->mpwqe.wqe) mlx5e_xdp_mpwqe_complete(sq); |