[RFC,v2,03/33] sfc: add XDP frame size

Message ID 158634664953.707275.13465095292337872793.stgit@firesoul
State New
Headers show
Series
  • Untitled series #42432
Related show

Commit Message

Jesper Dangaard Brouer April 8, 2020, 11:50 a.m.
This driver uses RX page-split when possible. It was recently fixed
in commit 86e85bf6981c ("sfc: fix XDP-redirect in this driver") to
add needed tailroom for XDP-redirect.

After the fix efx->rx_page_buf_step is the frame size, with enough
head and tail-room for XDP-redirect.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
---
 drivers/net/ethernet/sfc/rx.c |    1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 260352d97d9d..68c47a8c71df 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -308,6 +308,7 @@  static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
 	xdp_set_data_meta_invalid(&xdp);
 	xdp.data_end = xdp.data + rx_buf->len;
 	xdp.rxq = &rx_queue->xdp_rxq_info;
+	xdp.frame_sz = efx->rx_page_buf_step;
 
 	xdp_act = bpf_prog_run_xdp(xdp_prog, &xdp);
 	rcu_read_unlock();