Messages in this thread Patch in this message | | | From | Mugunthan V N <> | Subject | [net-next PATCH 1/3] net: ethtool: Add Multicast and broadcast rate limit coalescing feature | Date | Tue, 8 Jul 2014 14:27:39 +0530 |
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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 <mugunthanvnm@ti.com> --- 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; }; /** -- 2.0.0.390.gcb682f8
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