[net-next PATCH v2 1/3] net: ethtool: Add Multicast and broadcast rate limit coalescing feature
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STALE4466d
From: Mugunthan V N <hidden>
Date: 2014-07-09 07:14:24
Also in:
linux-api, lkml
Subsystem:
networking [ethtool], networking [general], the rest · Maintainers:
Andrew Lunn, Jakub Kicinski, "David S. Miller", Eric Dumazet, Paolo Abeni, Linus Torvalds
Revision v2 of 2 in this series.
Revisions (2)
- v1 [diff vs current]
- v2 current
Add ability to limit the broadcast or multicast packets to prevent the loading of the CPU by a hacker with a broadcast or multicast packet flood. Signed-off-by: Mugunthan V N <redacted> --- include/uapi/linux/ethtool.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index e3c7a71..96ade34 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h@@ -350,6 +350,8 @@ struct ethtool_modinfo { * a TX interrupt, when the packet rate is above @pkt_rate_high. * @rate_sample_interval: How often to do adaptive coalescing packet rate * sampling, measured in seconds. Must not be zero. + * @rx_max_mcast: Threshold for high multicast packet rate (packets per second) + * @rx_max_bcast: Threshold for high broadcast packet rate (packets per second) * * Each pair of (usecs, max_frames) fields specifies that interrupts * should be coalesced until
@@ -400,6 +402,8 @@ struct ethtool_coalesce { __u32 tx_coalesce_usecs_high; __u32 tx_max_coalesced_frames_high; __u32 rate_sample_interval; + __u32 rx_max_mcast; + __u32 rx_max_bcast; }; /**
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2.0.0.390.gcb682f8