leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net: mvneta: Add xdp tx return bulking support

Browse Source 
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: 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
This commit is contained in:
Lorenzo Bianconi 2020-11-13 12:48:30 +01:00 committed by Daniel Borkmann
parent 7886244736
commit 2f9d09394d
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/ethernet/marvell/mvneta.c
View File

@ -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);
}