Commit 8c4df83f authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by David S. Miller
Browse files

net: mvneta: fix dma sync size in mvneta_run_xdp 



Page pool API will start syncing (if requested) starting from
page->dma_addr + pool->p.offset. Fix dma sync length in
mvneta_run_xdp since we do not need to account xdp headroom

Fixes: 07e13edb ("net: mvneta: get rid of huge dma sync in mvneta_rx_refill")
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Acked-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 86f3f4cd

drivers/net/ethernet/marvell/mvneta.c

+10 −9
Original line number Diff line number Diff line
@@ -2081,7 +2081,11 @@ static int 
mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,

	       struct bpf_prog *prog, struct xdp_buff *xdp)

{

	u32 ret, act = bpf_prog_run_xdp(prog, xdp);

	unsigned int len;

	u32 ret, act;



	len = xdp->data_end - xdp->data_hard_start - pp->rx_offset_correction;

	act = bpf_prog_run_xdp(prog, xdp);



	switch (act) {

	case XDP_PASS:
@@ -2095,8 +2099,7 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, 
			ret = MVNETA_XDP_DROPPED;

			__page_pool_put_page(rxq->page_pool,

					     virt_to_head_page(xdp->data),

					xdp->data_end - xdp->data_hard_start,

					true);

					     len, true);

		} else {

			ret = MVNETA_XDP_REDIR;

		}
@@ -2107,8 +2110,7 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, 
		if (ret != MVNETA_XDP_TX)

			__page_pool_put_page(rxq->page_pool,

					     virt_to_head_page(xdp->data),

					xdp->data_end - xdp->data_hard_start,

					true);

					     len, true);

		break;

	default:

		bpf_warn_invalid_xdp_action(act);
@@ -2119,8 +2121,7 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, 
	case XDP_DROP:

		__page_pool_put_page(rxq->page_pool,

				     virt_to_head_page(xdp->data),

				     xdp->data_end - xdp->data_hard_start,

				     true);

				     len, true);

		ret = MVNETA_XDP_DROPPED;

		break;

	}

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