Date: Thu, 27 Nov 2008 12:51:28 +0000 (GMT) From: Robert Watson <rwatson@FreeBSD.org> To: Yony Yossef <yonyossef.lists@gmail.com> Cc: jfv@FreeBSD.org, freebsd-hackers@freebsd.org, freebsd-net@freebsd.org Subject: Re: IFCAP_LRO on FreeBSD 7 Message-ID: <alpine.BSF.1.10.0811271245410.48810@fledge.watson.org> In-Reply-To: <20def4870811270441n6b201076k715e1c7e1adc8781@mail.gmail.com> References: <20def4870811270441n6b201076k715e1c7e1adc8781@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 27 Nov 2008, Yony Yossef wrote: > Is there a native interface for LRO in FreeBSD 7? I can't find any use for > IFCAP_LRO but notifying the driver if to use or not to use this offload. > > If not, is it planned for FreeBSD 8? IFCAP_LRO is a capability/policy flag allowing drivers to declare support for LRO, and for administrators to enable/disable it if present. Drivers can either provide their own implementation (mxge, nxge) or use the system implementation (cxgb, igb). I'm slightly surprised to see that igb references tcp_lro_init() but not IFCAP_LRO -- perhaps lro isn't yet fully hooked up, or perhaps there's a bug? I believe all of the above applies to 7.1 but not 7.0, except possibly mxge supporting LRO in 7.0. Robert N M Watson Computer Laboratory University of Cambridge
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.BSF.1.10.0811271245410.48810>