Commit 15143bf5 authored by Tariq Toukan's avatar Tariq Toukan Committed by Saeed Mahameed
Browse files

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



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: default avatarTariq Toukan <tariqt@mellanox.com>
Reviewed-by: default avatarShay Agroskin <shayag@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent f03590f7

drivers/net/ethernet/mellanox/mlx5/core/en.h

+1 −1
Original line number Diff line number Diff line
@@ -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 {

drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c

+3 −3
Original line number Diff line number Diff line
@@ -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);

	}

}

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