net: mvneta: Add xdp tx return bulking support (2f9d0939) · Commits · 戴 / test

Convert mvneta driver to xdp_return_frame_bulk APIs. XDP_REDIRECT (upstream codepath): 275Kpps XDP_REDIRECT (upstream codepath + bulking APIs): 284Kpps Co-developed-by:

Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:

Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by:

Daniel Borkmann <daniel@iogearbox.net> Acked-by:

John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/9af8014006d022fc0fec78cdaa71beb56999750d.1605267335.git.lorenzo@kernel.org

drivers/net/ethernet/marvell/mvneta.c

+9 −1

Original line number	Diff line number	Diff line
		@@ -1834,8 +1834,13 @@ static void mvneta_txq_bufs_free(struct mvneta_port *pp,
		struct netdev_queue *nq, bool napi)
		{
		unsigned int bytes_compl = 0, pkts_compl = 0;
		struct xdp_frame_bulk bq;
		int i;

		xdp_frame_bulk_init(&bq);

		rcu_read_lock(); /* need for xdp_return_frame_bulk */

		for (i = 0; i < num; i++) {
		struct mvneta_tx_buf *buf = &txq->buf[txq->txq_get_index];
		struct mvneta_tx_desc *tx_desc = txq->descs +
		@@ -1857,9 +1862,12 @@ static void mvneta_txq_bufs_free(struct mvneta_port *pp,
		if (napi && buf->type == MVNETA_TYPE_XDP_TX)
		xdp_return_frame_rx_napi(buf->xdpf);
		else
		xdp_return_frame(buf->xdpf);
		xdp_return_frame_bulk(buf->xdpf, &bq);
		}
		}
		xdp_flush_frame_bulk(&bq);

		rcu_read_unlock();

		netdev_tx_completed_queue(nq, pkts_compl, bytes_compl);
		}

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