From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.smtp-ext.broadcom.com (relay.smtp-ext.broadcom.com [192.19.166.228]) (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 7CACD29ACDB; Mon, 3 Nov 2025 19:46:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.19.166.228 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762199211; cv=none; b=TegjOENqZGBo0PTbJC0cAs5kjcGvERfgnyy1fQ2bCTghWKgoqGBY3hEgTILjIdbZkbq1p6ng1jrcJ9nqpieOEUbO/rYQW0JZvGQA6pGmy18xqx61jQsvEuKz7UiNZ3LmWLKOgN3EcV8SFtgV6VPY7ZfuWWYpGu8MhPWQzh8c0cw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762199211; c=relaxed/simple; bh=nzL7Ptcfl43WHATFv9Hul72L7iQ+Pvm8RIGVEuUvQxM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=FjJqfM7qAHa9fq7fKXKtskadYiW0Pp2OiSbEEy2ZCFmtQackm1EpykhZ8H8bQMeXSfTjwg0sae4pE+sFXUBLrfml5c7k36jCIb/8tI1s+F7sMz0VlKhO07lntTTGrDWtDFOr2QAuYNcMM7RKOaiyJZgSq2E+dAszOjDKcUyglBg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=UZQKSJwI; arc=none smtp.client-ip=192.19.166.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="UZQKSJwI" Received: from mail-acc-it-01.broadcom.com (mail-acc-it-01.acc.broadcom.net [10.35.36.83]) by relay.smtp-ext.broadcom.com (Postfix) with ESMTP id 9C99CC000543; Mon, 3 Nov 2025 11:46:44 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com 9C99CC000543 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1762199204; bh=nzL7Ptcfl43WHATFv9Hul72L7iQ+Pvm8RIGVEuUvQxM=; h=From:To:Cc:Subject:Date:From; b=UZQKSJwIWlCFquLJ1IVFDrTEH/rsOaOHGfaXIuDemdcho729oziwrT8nkam+gaQ8m qNjpQrDZE+7UE9md8ImARGo5sqlx77KujhtXQnYTkfIpBF7i0qkFMS9vzCqjqfngl1 NRbNJBWADfYRDhaPzbfAiCIoeqpVBtv6GpRJa3UM= Received: from stbirv-lnx-1.igp.broadcom.net (stbirv-lnx-1.igp.broadcom.net [10.67.48.32]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail-acc-it-01.broadcom.com (Postfix) with ESMTPSA id 33EE34002F44; Mon, 3 Nov 2025 14:46:43 -0500 (EST) From: Florian Fainelli To: netdev@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com, Florian Fainelli , Doug Berger , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Stanislav Fomichev , Antoine Tenart , Kuniyuki Iwashima , Yajun Deng , linux-kernel@vger.kernel.org (open list) Subject: [PATCH net-next 0/2] Allow disabling pause frames on panic Date: Mon, 3 Nov 2025 11:46:29 -0800 Message-Id: <20251103194631.3393020-1-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patch set allows disabling pause frame generation upon encountering a kernel panic. This has proven to be helpful in lab environments where devices are still being worked on, will panic for various reasons, and will occasionally take down the entire Ethernet switch they are attached to. Florian Fainelli (2): net: ethernet: Allow disabling pause on panic net: bcmgenet: Support calling set_pauseparam from panic context Documentation/ABI/testing/sysfs-class-net | 16 ++++ drivers/net/ethernet/broadcom/genet/bcmmii.c | 9 +- include/linux/netdevice.h | 1 + net/core/net-sysfs.c | 34 +++++++ net/ethernet/Makefile | 3 +- net/ethernet/pause_panic.c | 95 ++++++++++++++++++++ 6 files changed, 154 insertions(+), 4 deletions(-) create mode 100644 net/ethernet/pause_panic.c -- 2.34.1