From: Mugunthan V N <mugunthanvnm@ti.com>
To: <netdev@vger.kernel.org>
Cc: <davem@davemloft.net>, <linux-api@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Mugunthan V N <mugunthanvnm@ti.com>
Subject: [net-next PATCH v2 1/3] net: ethtool: Add Multicast and broadcast rate limit coalescing feature
Date: Wed, 9 Jul 2014 12:44:08 +0530 [thread overview]
Message-ID: <1404890050-4020-2-git-send-email-mugunthanvnm@ti.com> (raw)
In-Reply-To: <1404890050-4020-1-git-send-email-mugunthanvnm@ti.com>
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
next prev parent reply other threads:[~2014-07-09 7:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-09 7:14 [net-next PATCH v2 0/3] Broadcast/Multicast rate limit via Ethtool Coalesce Mugunthan V N
2014-07-09 7:14 ` Mugunthan V N [this message]
2014-07-09 7:14 ` [net-next PATCH v2 2/3] drivers: net: cpsw: remove redundancy check Mugunthan V N
2014-07-09 7:14 ` [net-next PATCH v2 3/3] drivers: net: cpsw: Add support for multicast/broadcast rate limit Mugunthan V N
2014-07-09 13:39 ` Govindarajulu Varadarajan
2014-07-09 23:44 ` [net-next PATCH v2 0/3] Broadcast/Multicast rate limit via Ethtool Coalesce David Miller
2014-07-17 6:13 ` Mugunthan V N
2014-07-17 12:53 ` David Laight
2014-07-18 5:37 ` Mugunthan V N
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