Date: Wed, 5 May 2010 16:48:22 +0000 From: Navdeep Parhar <np@FreeBSD.org> To: Rui Paulo <rpaulo@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r207643 - in head: sys/dev/cxgb usr.sbin/cxgbtool Message-ID: <20100505164822.GA44629@hub.freebsd.org> In-Reply-To: <C2F9CAC7-0854-4131-BDF9-78E69EB34AC3@FreeBSD.org> References: <201005050041.o450fesw090589@svn.freebsd.org> <C2F9CAC7-0854-4131-BDF9-78E69EB34AC3@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, May 05, 2010 at 11:02:49AM +0100, Rui Paulo wrote: > On 5 May 2010, at 01:41, Navdeep Parhar wrote: > > > Author: np > > Date: Wed May 5 00:41:40 2010 > > New Revision: 207643 > > URL: http://svn.freebsd.org/changeset/base/207643 > > > > Log: > > Add support for hardware filters to cxgb(4). The T3 chip can inspect > > L2/3/4 headers and can drop or steer packets as instructed. Filtering > > based on src ip, dst ip, src port, dst port, 802.1q, udp/tcp, and mac > > addr is possible. Add support in cxgbtool to program these filters. > > Some simple examples: > > ... > > MFC after: 2 weeks > > Wow, this is great! So this is able to do packet filtering at 10Gbps with no CPU impact? Yes, a packet that is dropped due to a filter match is dropped by the NIC's silicon. There is no CPU impact. Regards, Navdeep > > Regards, > -- > Rui Paulo > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100505164822.GA44629>