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| author | Paolo Abeni <pabeni@redhat.com> | 2026-03-05 18:26:54 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-03-05 18:26:55 +0300 |
| commit | ab99e1167293726f016360a5dbbbc10386fd7d66 (patch) | |
| tree | 8ca28ba27b69fbcdd1d9468f5d1a1b4d605c2bad /include | |
| parent | bc531c2cc1d179156e8e4bdede92842dc3b63cc2 (diff) | |
| parent | cc663d3fed062fb41b59df953a2cb9df5f56f943 (diff) | |
| download | linux-ab99e1167293726f016360a5dbbbc10386fd7d66.tar.xz | |
Merge branch 'net-ethtool-track-tx-pause-storm'
Mohsin Bashir says:
====================
net: ethtool: Track TX pause storm
With TX pause enabled, if a device cannot deliver received frames to
the stack (e.g., during a system hang), it may generate excessive pause
frames causing a pause storm. This series updates the uAPI to track TX
pause storm events as part of the pause stats (p1), proposes using the
existing pfc-prevention-tout knob to configure the storm watchdog (p2),
adds pause storm protection support for fbnic (p3), and leverages p1
to provide observability into these events for the fbnic (p4) and mlx5
(p5) drivers.
v3: https://lore.kernel.org/netdev/20260223174914.74461-1-mohsin.bashr@gmail.com/
V2: https://lore.kernel.org/20260207010525.3808842-1-mohsin.bashr@gmail.com/
V1: https://lore.kernel.org/20260122192158.428882-1-mohsin.bashr@gmail.com/
====================
Link: https://patch.msgid.link/20260302230149.1580195-1-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ethtool.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/ethtool.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/ethtool_netlink_generated.h | 1 |
3 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 798abec67a1b..83c375840835 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -512,12 +512,14 @@ struct ethtool_eth_ctrl_stats { * * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived` * from the standard. + * @tx_pause_storm_events: TX pause storm event count (see ethtool.yaml). */ struct ethtool_pause_stats { enum ethtool_mac_stats_src src; struct_group(stats, u64 tx_pause_frames; u64 rx_pause_frames; + u64 tx_pause_storm_events; ); }; diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index b74b80508553..1cdfb8341df2 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -225,7 +225,7 @@ enum tunable_id { ETHTOOL_ID_UNSPEC, ETHTOOL_RX_COPYBREAK, ETHTOOL_TX_COPYBREAK, - ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */ + ETHTOOL_PFC_PREVENTION_TOUT, /* both pause and pfc, see man ethtool */ ETHTOOL_TX_COPYBREAK_BUF_SIZE, /* * Add your fresh new tunable attribute above and remember to update diff --git a/include/uapi/linux/ethtool_netlink_generated.h b/include/uapi/linux/ethtool_netlink_generated.h index 556a0c834df5..114b83017297 100644 --- a/include/uapi/linux/ethtool_netlink_generated.h +++ b/include/uapi/linux/ethtool_netlink_generated.h @@ -381,6 +381,7 @@ enum { ETHTOOL_A_PAUSE_STAT_PAD, ETHTOOL_A_PAUSE_STAT_TX_FRAMES, ETHTOOL_A_PAUSE_STAT_RX_FRAMES, + ETHTOOL_A_PAUSE_STAT_TX_PAUSE_STORM_EVENTS, __ETHTOOL_A_PAUSE_STAT_CNT, ETHTOOL_A_PAUSE_STAT_MAX = (__ETHTOOL_A_PAUSE_STAT_CNT - 1) |