linux-kernel - [PATCH net-next v2] net: stmmac: dwmac4: Add ip payload error statistics

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Message-Id: <20240930110205.44278-1-minda.chen@starfivetech.com>
Date: Mon, 30 Sep 2024 19:02:05 +0800
From: Minda Chen <minda.chen@...rfivetech.com>
To: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	Minda Chen <minda.chen@...rfivetech.com>
Subject: [PATCH net-next v2] net: stmmac: dwmac4: Add ip payload error statistics

Add dwmac4 ip payload error statistics, and rename discripter bit macro
because latest version descriptor IPCE bit claims ip checksum error or
l4 segment length error.

Signed-off-by: Minda Chen <minda.chen@...rfivetech.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c | 2 ++
 drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.h | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
index e99401bcc1f8..a5fb31eb0192 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -118,6 +118,8 @@ static int dwmac4_wrback_get_rx_status(struct stmmac_extra_stats *x,
 		x->ipv4_pkt_rcvd++;
 	if (rdes1 & RDES1_IPV6_HEADER)
 		x->ipv6_pkt_rcvd++;
+	if (rdes1 & RDES1_IP_PAYLOAD_ERROR)
+		x->ip_payload_err++;
 
 	if (message_type == RDES_EXT_NO_PTP)
 		x->no_ptp_rx_msg_type_ext++;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.h
index 6da070ccd737..1ce6f43d545a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.h
@@ -95,7 +95,7 @@
 #define RDES1_IPV4_HEADER		BIT(4)
 #define RDES1_IPV6_HEADER		BIT(5)
 #define RDES1_IP_CSUM_BYPASSED		BIT(6)
-#define RDES1_IP_CSUM_ERROR		BIT(7)
+#define RDES1_IP_PAYLOAD_ERROR		BIT(7)
 #define RDES1_PTP_MSG_TYPE_MASK		GENMASK(11, 8)
 #define RDES1_PTP_PACKET_TYPE		BIT(12)
 #define RDES1_PTP_VER			BIT(13)
-- 
2.17.1