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net/mlx5e: XDP, Enhance RQ indication for XDP redirect flush

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The XDP redirect flush indication belongs to the receive queue,
not to its XDP send queue.

For this, use a new bit on rq->flags.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Shay Agroskin <shayag@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Tariq Toukan 2019-03-10 15:35:58 +02:00 committed by Saeed Mahameed
parent f03590f74c
commit 15143bf51c
2 changed files with 4 additions and 4 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/en.h
View file

@ -428,7 +428,6 @@ struct mlx5e_xdpsq {
/* dirtied @completion */
u32 xdpi_fifo_cc;
u16 cc;
bool redirect_flush;
/* dirtied @xmit */
u32 xdpi_fifo_pc ____cacheline_aligned_in_smp;
@ -532,6 +531,7 @@ typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
enum mlx5e_rq_flag {
MLX5E_RQ_FLAG_XDP_XMIT,
MLX5E_RQ_FLAG_XDP_REDIRECT,
};
struct mlx5e_rq_frag_info {

6
drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
View file

@ -85,7 +85,7 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
if (unlikely(err))
goto xdp_abort;
__set_bit(MLX5E_RQ_FLAG_XDP_XMIT, rq->flags);
rq->xdpsq.redirect_flush = true;
__set_bit(MLX5E_RQ_FLAG_XDP_REDIRECT, rq->flags);
mlx5e_page_dma_unmap(rq, di);
rq->stats->xdp_redirect++;
return true;
@ -419,9 +419,9 @@ void mlx5e_xdp_rx_poll_complete(struct mlx5e_rq *rq)
mlx5e_xmit_xdp_doorbell(xdpsq);
if (xdpsq->redirect_flush) {
if (test_bit(MLX5E_RQ_FLAG_XDP_REDIRECT, rq->flags)) {
xdp_do_flush_map();
xdpsq->redirect_flush = false;
__clear_bit(MLX5E_RQ_FLAG_XDP_REDIRECT, rq->flags);
}
}