linux-kernel - [PATCH net-next v2 0/2] Allow disabling pause frames on panic

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Message-Id: <20251104221348.4163417-1-florian.fainelli@broadcom.com>
Date: Tue,  4 Nov 2025 14:13:46 -0800
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: netdev@...r.kernel.org
Cc: bcm-kernel-feedback-list@...adcom.com,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Doug Berger <opendmb@...il.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Antoine Tenart <atenart@...nel.org>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	Yajun Deng <yajun.deng@...ux.dev>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next v2 0/2] Allow disabling pause frames on panic

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.

Changes in v2:

- introduce a dedicated callback that runs in panic context

Florian Fainelli (2):
  net: ethernet: Allow disabling pause on panic
  net: bcmgenet: Add support for set_pauseparam_panic

 Documentation/ABI/testing/sysfs-class-net     | 16 ++++
 .../net/ethernet/broadcom/genet/bcmgenet.c    |  8 ++
 .../net/ethernet/broadcom/genet/bcmgenet.h    |  1 +
 drivers/net/ethernet/broadcom/genet/bcmmii.c  | 10 +++
 include/linux/ethtool.h                       |  3 +
 include/linux/netdevice.h                     |  1 +
 net/core/net-sysfs.c                          | 34 ++++++++
 net/ethernet/Makefile                         |  3 +-
 net/ethernet/pause_panic.c                    | 81 +++++++++++++++++++
 9 files changed, 156 insertions(+), 1 deletion(-)
 create mode 100644 net/ethernet/pause_panic.c

-- 
2.34.1