This is a note to let you know that I've just added the patch titled
net: ethernet: ti: am65-cpsw: fix RX & TX statistics for XDP_TX case
to the 6.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ethernet-ti-am65-cpsw-fix-rx-tx-statistics-for-x.patch
and it can be found in the queue-6.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2a70726cd45b58c71e763f55eec0aefbc0c605df
Author: Roger Quadros <rogerq@xxxxxxxxxx>
Date: Mon Feb 10 16:52:16 2025 +0200
net: ethernet: ti: am65-cpsw: fix RX & TX statistics for XDP_TX case
[ Upstream commit 8a9f82ff15da03a6804cdd6557fb36ff71c0924f ]
For successful XDP_TX and XDP_REDIRECT cases, the packet was received
successfully so update RX statistics. Use original received
packet length for that.
TX packets statistics are incremented on TX completion so don't
update it while TX queueing.
If xdp_convert_buff_to_frame() fails, increment tx_dropped.
Signed-off-by: Roger Quadros <rogerq@xxxxxxxxxx>
Fixes: 8acacc40f733 ("net: ethernet: ti: am65-cpsw: Add minimal XDP support")
Link: https://patch.msgid.link/20250210-am65-cpsw-xdp-fixes-v1-2-ec6b1f7f1aca@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 0bbbd4cb6fb5c..43a3f36f0d220 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1134,9 +1134,11 @@ static int am65_cpsw_run_xdp(struct am65_cpsw_rx_flow *flow,
struct xdp_frame *xdpf;
struct bpf_prog *prog;
struct page *page;
+ int pkt_len;
u32 act;
int err;
+ pkt_len = *len;
prog = READ_ONCE(port->xdp_prog);
if (!prog)
return AM65_CPSW_XDP_PASS;
@@ -1154,8 +1156,10 @@ static int am65_cpsw_run_xdp(struct am65_cpsw_rx_flow *flow,
netif_txq = netdev_get_tx_queue(ndev, tx_chn->id);
xdpf = xdp_convert_buff_to_frame(xdp);
- if (unlikely(!xdpf))
+ if (unlikely(!xdpf)) {
+ ndev->stats.tx_dropped++;
goto drop;
+ }
__netif_tx_lock(netif_txq, cpu);
err = am65_cpsw_xdp_tx_frame(ndev, tx_chn, xdpf,
@@ -1164,14 +1168,14 @@ static int am65_cpsw_run_xdp(struct am65_cpsw_rx_flow *flow,
if (err)
goto drop;
- dev_sw_netstats_tx_add(ndev, 1, *len);
+ dev_sw_netstats_rx_add(ndev, pkt_len);
ret = AM65_CPSW_XDP_CONSUMED;
goto out;
case XDP_REDIRECT:
if (unlikely(xdp_do_redirect(ndev, xdp, prog)))
goto drop;
- dev_sw_netstats_rx_add(ndev, *len);
+ dev_sw_netstats_rx_add(ndev, pkt_len);
ret = AM65_CPSW_XDP_REDIRECT;
goto out;
default:
