Propagate hardware checksum failures from the descriptor parser to the caller. Currently, dwmac4_wrback_get_rx_status() updates stats when the Rx descriptor signals an IP header or payload checksum error, but it does not reflect this in its return value. The higher-level stmmac_rx() code therefore cannot tell that hardware checksum validation failed. Set the csum_none flag in the returned status when either RDES1_IP_HDR_ERROR or RDES1_IP_PAYLOAD_ERROR is present. This aligns dwmac4 with enh_desc_coe_rdes0() and lets stmmac_rx() mark the skb as CHECKSUM_NONE for software verification. This is a preparatory step for disabling the hardware filter that drops frames which do not pass checksum validation. Signed-off-by: Oleksij Rempel --- drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index a5fb31eb0192..aac68dc28dc1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@ -110,16 +110,20 @@ static int dwmac4_wrback_get_rx_status(struct stmmac_extra_stats *x, message_type = (rdes1 & ERDES4_MSG_TYPE_MASK) >> 8; - if (rdes1 & RDES1_IP_HDR_ERROR) + if (rdes1 & RDES1_IP_HDR_ERROR) { x->ip_hdr_err++; + ret |= csum_none; + } if (rdes1 & RDES1_IP_CSUM_BYPASSED) x->ip_csum_bypassed++; if (rdes1 & RDES1_IPV4_HEADER) x->ipv4_pkt_rcvd++; if (rdes1 & RDES1_IPV6_HEADER) x->ipv6_pkt_rcvd++; - if (rdes1 & RDES1_IP_PAYLOAD_ERROR) + if (rdes1 & RDES1_IP_PAYLOAD_ERROR) { x->ip_payload_err++; + ret |= csum_none; + } if (message_type == RDES_EXT_NO_PTP) x->no_ptp_rx_msg_type_ext++; -- 2.39.5