diff options
| author | Wei Fang <wei.fang@nxp.com> | 2025-11-06 10:14:21 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-03 12:45:16 +0100 |
| commit | e78b093badf96398165304ccaa7c1b03cd812b58 (patch) | |
| tree | b73a163009f053b697bff8fda625bfd5c9951aab | |
| parent | c2ec6ebd8e947c05808d1f0bf6428412fa03030d (diff) | |
net: fec: correct rx_bytes statistic for the case SHIFT16 is set
[ Upstream commit ad17e7e92a7c52ce70bb764813fcf99464f96903 ]
Two additional bytes in front of each frame received into the RX FIFO if
SHIFT16 is set, so we need to subtract the extra two bytes from pkt_len
to correct the statistic of rx_bytes.
Fixes: 3ac72b7b63d5 ("net: fec: align IP header in hardware")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251106021421.2096585-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 7b2ab0cc562c..cd2fd2926f2f 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1530,6 +1530,8 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) ndev->stats.rx_packets++; pkt_len = fec16_to_cpu(bdp->cbd_datlen); ndev->stats.rx_bytes += pkt_len; + if (fep->quirks & FEC_QUIRK_HAS_RACC) + ndev->stats.rx_bytes -= 2; index = fec_enet_get_bd_index(bdp, &rxq->bd); skb = rxq->rx_skbuff[index]; |