From nobody Sat Oct 4 06:37:53 2025 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 3F8842DECA1; Wed, 20 Aug 2025 09:07:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755680873; cv=none; b=WwXIQCeUBUEoMkCJgJGSCm4AgQUuKMZRF2tHxQ0wC+Af0MiT4gAEgtOcSpJ/VJOOxjUBx95hLttwhoqnJPeFdUG8ZjyPkLRqECiml3fQh0aCw6k7eodgSU2hpbtWH23+LHelmLLXmmWsbxumIZ5iDctPqasIXe6BXiaH0teR+BM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755680873; c=relaxed/simple; bh=VrjHvrSL5QIhW51uCmcfRPbG25k53AyjW4E7xJMdBvo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ZxfR2tVBjR0ec/D04WMCKMpIoIsV5M4sSxgKPgTuSfI3aaaT6ns21SfkPr1zSuukenIUXYJ7MPwnr1LksRGa/dJekjSaUZIGQBTnvbtFP09Y5+mkzEwfwu03JotNF/9XQwPndF424Z+zxOm71SFnPKkbB6gMfymQD5+9R6PQxfU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=C8jgJuGg; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="C8jgJuGg" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id EF5B1C6B3BE; Wed, 20 Aug 2025 09:07:35 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 9398A606A0; Wed, 20 Aug 2025 09:07:49 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 647AD1C22D468; Wed, 20 Aug 2025 11:07:47 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1755680868; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=aBfAQYLk80uQ0sZ8VK7L/49M4AQ2IfTAo8FjJAj5W1s=; b=C8jgJuGgrwdEZk+SulBlYjG4Xi1pCaSl4YaU7BrfJUNUDjBNUrd3+N0+uhg2xx9FQffvyz 3LoE31UPB+HUSbzICFtRJCNTfQvqJiIG0OvdDriVJmuZEnVcwYI+rOZK2pbKoYZ05T5fN3 fmRePHSkJ5UiswaPUzlbiyJbA8n9fTy/6HGmaKWT1K+65H2RrgjWU5QCZzzP8M9Td8M61e frc+yNwcBwYJKe4gKCnxYmHIranmr+rBfjyzoXoK0qrmL1pVz9R5k2Ge++q3OgnMImODb/ /dNX0WI9pUBHJNNPQ3g5cW/fLzMOdTwhX+RrGBnHSQJzhv//l6WACyr20DzOkA== From: Kory Maincent Date: Wed, 20 Aug 2025 11:07:34 +0200 Subject: [PATCH ethtool v3 3/3] ethtool: pse-pd: Add PSE event monitoring support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250820-b4-feature_poe_pw_budget-v3-3-c3d57362c086@bootlin.com> References: <20250820-b4-feature_poe_pw_budget-v3-0-c3d57362c086@bootlin.com> In-Reply-To: <20250820-b4-feature_poe_pw_budget-v3-0-c3d57362c086@bootlin.com> To: Oleksij Rempel , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Michal Kubecek Cc: Dent Project , Kyle Swenson , Thomas Petazzoni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Kory Maincent X-Mailer: b4 0.15-dev-8cb71 X-Last-TLS-Session-Version: TLSv1.3 From: Kory Maincent (Dent Project) Add support for PSE (Power Sourcing Equipment) event monitoring capabilities through the monitor command. Signed-off-by: Kory Maincent Reviewed-by: Oleksij Rempel --- Changes in v3: - Change event loop limit to not ignore events that could be out of scope. - Fix incorrect attribute usage. --- netlink/monitor.c | 9 ++++++++- netlink/netlink.h | 1 + netlink/pse-pd.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++= ++++ 3 files changed, 69 insertions(+), 1 deletion(-) diff --git a/netlink/monitor.c b/netlink/monitor.c index c511389..a16cb97 100644 --- a/netlink/monitor.c +++ b/netlink/monitor.c @@ -79,6 +79,10 @@ static struct { .cmd =3D ETHTOOL_MSG_PLCA_NTF, .cb =3D plca_get_cfg_reply_cb, }, + { + .cmd =3D ETHTOOL_MSG_PSE_NTF, + .cb =3D pse_ntf_cb, + }, }; =20 static void clear_filter(struct nl_context *nlctx) @@ -194,7 +198,10 @@ static struct monitor_option monitor_opts[] =3D { .pattern =3D "--get-plca-cfg|--set-plca-cfg", .cmd =3D ETHTOOL_MSG_PLCA_NTF, }, - + { + .pattern =3D "--pse-event", + .cmd =3D ETHTOOL_MSG_PSE_NTF, + }, }; =20 static bool pattern_match(const char *s, const char *pattern) diff --git a/netlink/netlink.h b/netlink/netlink.h index 290592b..eefedf7 100644 --- a/netlink/netlink.h +++ b/netlink/netlink.h @@ -93,6 +93,7 @@ int cable_test_tdr_ntf_cb(const struct nlmsghdr *nlhdr, v= oid *data); int fec_reply_cb(const struct nlmsghdr *nlhdr, void *data); int module_reply_cb(const struct nlmsghdr *nlhdr, void *data); int plca_get_cfg_reply_cb(const struct nlmsghdr *nlhdr, void *data); +int pse_ntf_cb(const struct nlmsghdr *nlhdr, void *data); =20 /* dump helpers */ =20 diff --git a/netlink/pse-pd.c b/netlink/pse-pd.c index f761871..77d599b 100644 --- a/netlink/pse-pd.c +++ b/netlink/pse-pd.c @@ -475,6 +475,66 @@ int nl_gpse(struct cmd_context *ctx) return ret; } =20 +static const char *pse_events_name(u64 val) +{ + switch (val) { + case ETHTOOL_PSE_EVENT_OVER_CURRENT: + return "over-current"; + case ETHTOOL_PSE_EVENT_OVER_TEMP: + return "over-temperature"; + case ETHTOOL_C33_PSE_EVENT_DETECTION: + return "detection"; + case ETHTOOL_C33_PSE_EVENT_CLASSIFICATION: + return "classification"; + case ETHTOOL_C33_PSE_EVENT_DISCONNECTION: + return "disconnection"; + case ETHTOOL_PSE_EVENT_OVER_BUDGET: + return "over-budget"; + case ETHTOOL_PSE_EVENT_SW_PW_CONTROL_ERROR: + return "software power control error"; + default: + return "unknown"; + } +} + +int pse_ntf_cb(const struct nlmsghdr *nlhdr, void *data) +{ + const struct nlattr *tb[ETHTOOL_A_PSE_NTF_MAX + 1] =3D {}; + struct nl_context *nlctx =3D data; + DECLARE_ATTR_TB_INFO(tb); + u64 val; + int ret, i; + + ret =3D mnl_attr_parse(nlhdr, GENL_HDRLEN, attr_cb, &tb_info); + if (ret < 0) + return MNL_CB_OK; + + if (!tb[ETHTOOL_A_PSE_NTF_EVENTS]) + return MNL_CB_OK; + + nlctx->devname =3D get_dev_name(tb[ETHTOOL_A_PSE_NTF_HEADER]); + if (!dev_ok(nlctx)) + return MNL_CB_OK; + + open_json_object(NULL); + print_string(PRINT_ANY, "ifname", "PSE event for %s:\n", + nlctx->devname); + open_json_array("events", "Events:"); + val =3D attr_get_uint(tb[ETHTOOL_A_PSE_NTF_EVENTS]); + for (i =3D 0; + i < mnl_attr_get_payload_len(tb[ETHTOOL_A_PSE_NTF_EVENTS]) * 8; + i++) + if (val & 1 << i) + print_string(PRINT_ANY, NULL, " %s", + pse_events_name(val & 1 << i)); + close_json_array("\n"); + if (ret < 0) + return MNL_CB_OK; + + close_json_object(); + return MNL_CB_OK; +} + /* PSE_SET */ =20 static const struct lookup_entry_u32 podl_pse_admin_control_values[] =3D { --=20 2.43.0