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authorWei Fang <wei.fang@nxp.com>2023-06-02 12:46:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-06-14 12:15:17 +0300
commita22c0a03463075e75464ec627fb6175eaa6a263b (patch)
treed586ad38b70090b11dbd0aa68a579047d7f726db /drivers/net/ethernet/freescale
parentb3fc768a746bf5da0bffe9a1d525c61a3208b56c (diff)
downloadlinux-a22c0a03463075e75464ec627fb6175eaa6a263b.tar.xz
net: enetc: correct rx_bytes statistics of XDP
[ Upstream commit fdebd850cc065495abf1d64756496050bb22db67 ] 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> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/freescale')
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index df7747e49bb8..25c303406e6b 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1538,6 +1538,14 @@ 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) {