From nobody Tue Feb 10 12:40:19 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3487218B470 for ; Tue, 3 Dec 2024 07:56:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733212602; cv=none; b=Mr47558WzLouXcTAMts/uZZKDYLKCRbFySaiYWZu8oshE3MHzwenIdOCG+Sps5swxpXUjKHlXq58cyuPcBsnNcYCeayR9H1F3YGdzuHUADtbSNiRqoFOSuxdluEgv5hkDKncQ2C8LBlfq23AUObAmzD8VN9l7eVxG1XUGRXaaUk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733212602; c=relaxed/simple; bh=KvgKfIw/lL22aGiulcuLraD/URWJ60B/wcfyKrnFy2o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=RprPHyR7L55BqG9RHkUeFM3NVUBm7rq3cHhOgnCtK6MJemuYR5q87799TgaFKbTl39a4lcj/MaeqhM2eHVkaLGHs1L8nlxrLxUlcRPRqKYotv6WnJWUiOHuOYyJajm/l3VtXTdKH5D+EeW7Lz48BjdAm5TADzcUh/uz1ZLcJ0S4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tINlj-000398-Kl; Tue, 03 Dec 2024 08:56:27 +0100 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tINle-001R94-0v; Tue, 03 Dec 2024 08:56:23 +0100 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1tINle-00AHwd-37; Tue, 03 Dec 2024 08:56:22 +0100 From: Oleksij Rempel To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Heiner Kallweit , Jonathan Corbet Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Simon Horman , Russell King , Maxime Chevallier , linux-doc@vger.kernel.org Subject: [PATCH net-next v1 6/7] phy: dp83td510: add statistics support Date: Tue, 3 Dec 2024 08:56:20 +0100 Message-Id: <20241203075622.2452169-7-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241203075622.2452169-1-o.rempel@pengutronix.de> References: <20241203075622.2452169-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add support for reporting PHY statistics in the DP83TD510 driver. This includes cumulative tracking of transmit/receive packet counts, and error counts. Implemented functions to update and provide statistics via ethtool, with optional polling support enabled through `PHY_POLL_STATS`. Signed-off-by: Oleksij Rempel --- drivers/net/phy/dp83td510.c | 98 ++++++++++++++++++++++++++++++++++++- 1 file changed, 97 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/dp83td510.c b/drivers/net/phy/dp83td510.c index 92aa3a2b9744..08d61a6a8c61 100644 --- a/drivers/net/phy/dp83td510.c +++ b/drivers/net/phy/dp83td510.c @@ -34,6 +34,24 @@ #define DP83TD510E_CTRL_HW_RESET BIT(15) #define DP83TD510E_CTRL_SW_RESET BIT(14) =20 +#define DP83TD510E_PKT_STAT_1 0x12b +#define DP83TD510E_TX_PKT_CNT_15_0_MASK GENMASK(15, 0) + +#define DP83TD510E_PKT_STAT_2 0x12c +#define DP83TD510E_TX_PKT_CNT_31_16_MASK GENMASK(15, 0) + +#define DP83TD510E_PKT_STAT_3 0x12d +#define DP83TD510E_TX_ERR_PKT_CNT_MASK GENMASK(15, 0) + +#define DP83TD510E_PKT_STAT_4 0x12e +#define DP83TD510E_RX_PKT_CNT_15_0_MASK GENMASK(15, 0) + +#define DP83TD510E_PKT_STAT_5 0x12f +#define DP83TD510E_RX_PKT_CNT_31_16_MASK GENMASK(15, 0) + +#define DP83TD510E_PKT_STAT_6 0x130 +#define DP83TD510E_RX_ERR_PKT_CNT_MASK GENMASK(15, 0) + #define DP83TD510E_AN_STAT_1 0x60c #define DP83TD510E_MASTER_SLAVE_RESOL_FAIL BIT(15) =20 @@ -58,8 +76,16 @@ static const u16 dp83td510_mse_sqi_map[] =3D { 0x0000 /* 24dB =3D< SNR */ }; =20 +struct dp83td510_stats { + u64 tx_pkt_cnt; + u64 tx_err_pkt_cnt; + u64 rx_pkt_cnt; + u64 rx_err_pkt_cnt; +}; + struct dp83td510_priv { bool alcd_test_active; + struct dp83td510_stats stats; }; =20 /* Time Domain Reflectometry (TDR) Functionality of DP83TD510 PHY @@ -177,6 +203,74 @@ struct dp83td510_priv { #define DP83TD510E_ALCD_COMPLETE BIT(15) #define DP83TD510E_ALCD_CABLE_LENGTH GENMASK(10, 0) =20 +/** + * dp83td510_update_stats - Update the PHY statistics for the DP83TD510 PH= Y. + * @phydev: Pointer to the phy_device structure. + * + * The function reads the PHY statistics registers and updates the statist= ics + * structure. + * + * Returns: 0 on success or a negative error code on failure. + */ +static int dp83td510_update_stats(struct phy_device *phydev) +{ + struct dp83td510_priv *priv =3D phydev->priv; + u64 count; + int ret; + + /* DP83TD510E_PKT_STAT_1 to DP83TD510E_PKT_STAT_6 registers are cleared + * after reading them in a sequence. A reading of this register not in + * sequence will prevent them from being cleared. + */ + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_1); + if (ret < 0) + return ret; + count =3D FIELD_GET(DP83TD510E_TX_PKT_CNT_15_0_MASK, ret); + + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_2); + if (ret < 0) + return ret; + count |=3D (u64)FIELD_GET(DP83TD510E_TX_PKT_CNT_31_16_MASK, ret) << 16; + ethtool_stat_add(&priv->stats.tx_pkt_cnt, count); + + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_3); + if (ret < 0) + return ret; + count =3D FIELD_GET(DP83TD510E_TX_ERR_PKT_CNT_MASK, ret); + ethtool_stat_add(&priv->stats.tx_err_pkt_cnt, count); + + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_4); + if (ret < 0) + return ret; + count =3D FIELD_GET(DP83TD510E_RX_PKT_CNT_15_0_MASK, ret); + + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_5); + if (ret < 0) + return ret; + count |=3D (u64)FIELD_GET(DP83TD510E_RX_PKT_CNT_31_16_MASK, ret) << 16; + ethtool_stat_add(&priv->stats.rx_pkt_cnt, count); + + ret =3D phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_PKT_STAT_6); + if (ret < 0) + return ret; + count =3D FIELD_GET(DP83TD510E_RX_ERR_PKT_CNT_MASK, ret); + ethtool_stat_add(&priv->stats.rx_err_pkt_cnt, count); + + return 0; +} + +static void dp83td510_get_phy_stats(struct phy_device *phydev, + struct ethtool_eth_phy_stats *eth_stats, + struct ethtool_phy_stats *stats) +{ + struct dp83td510_priv *priv =3D phydev->priv; + + stats->tx_packets =3D priv->stats.tx_pkt_cnt; + stats->tx_errors =3D priv->stats.tx_err_pkt_cnt; + stats->rx_packets =3D priv->stats.rx_pkt_cnt; + stats->rx_errors =3D priv->stats.rx_err_pkt_cnt; +} + static int dp83td510_config_intr(struct phy_device *phydev) { int ret; @@ -588,7 +682,7 @@ static struct phy_driver dp83td510_driver[] =3D { PHY_ID_MATCH_MODEL(DP83TD510E_PHY_ID), .name =3D "TI DP83TD510E", =20 - .flags =3D PHY_POLL_CABLE_TEST, + .flags =3D PHY_POLL_CABLE_TEST | PHY_POLL_STATS, .probe =3D dp83td510_probe, .config_aneg =3D dp83td510_config_aneg, .read_status =3D dp83td510_read_status, @@ -599,6 +693,8 @@ static struct phy_driver dp83td510_driver[] =3D { .get_sqi_max =3D dp83td510_get_sqi_max, .cable_test_start =3D dp83td510_cable_test_start, .cable_test_get_status =3D dp83td510_cable_test_get_status, + .get_phy_stats =3D dp83td510_get_phy_stats, + .update_stats =3D dp83td510_update_stats, =20 .suspend =3D genphy_suspend, .resume =3D genphy_resume, --=20 2.39.5