From: Wei Fang <wei.fang@nxp.com>
The rx_bytes statistics of XDP are always zero, because rx_byte_cnt
is not updated after it is initialized to 0. So fix it.
Fixes: d1b15102dd16 ("net: enetc: add support for XDP_DROP and XDP_PASS")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
drivers/net/ethernet/freescale/enetc/enetc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index d6c0f3f46c2a..9e1b2536e9a9 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1571,6 +1571,14 @@ static int enetc_clean_rx_ring_xdp(struct enetc_bdr *rx_ring,
enetc_build_xdp_buff(rx_ring, bd_status, &rxbd, &i,
&cleaned_cnt, &xdp_buff);
+ /* When set, the outer VLAN header is extracted and reported
+ * in the receive buffer descriptor. So rx_byte_cnt should
+ * add the length of the extracted VLAN header.
+ */
+ if (bd_status & ENETC_RXBD_FLAG_VLAN)
+ rx_byte_cnt += VLAN_HLEN;
+ rx_byte_cnt += xdp_get_buff_len(&xdp_buff);
+
xdp_act = bpf_prog_run_xdp(prog, &xdp_buff);
switch (xdp_act) {
--
2.25.1