Date: Fri, 5 Jul 2002 10:45:50 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Bosko Milekic <bmilekic@unixdaemons.com> Cc: "Kenneth D. Merry" <ken@kdm.org>, net@FreeBSD.ORG Subject: Re: virtually contig jumbo mbufs (was Re: new zero copy sockets snapshot) Message-ID: <15653.45342.299963.692216@grasshopper.cs.duke.edu> In-Reply-To: <20020705104247.A518@unixdaemons.com> References: <20020619233721.A30669@unixdaemons.com> <15633.62357.79381.405511@grasshopper.cs.duke.edu> <20020620114511.A22413@unixdaemons.com> <15634.534.696063.241224@grasshopper.cs.duke.edu> <20020620134723.A22954@unixdaemons.com> <15652.46870.463359.853754@grasshopper.cs.duke.edu> <20020705002056.A5365@unixdaemons.com> <15653.35919.24295.698563@grasshopper.cs.duke.edu> <20020705093435.A25047@unixdaemons.com> <15653.43437.658461.49860@grasshopper.cs.duke.edu> <20020705104247.A518@unixdaemons.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Bosko Milekic writes: > > On Fri, Jul 05, 2002 at 10:14:05AM -0400, Andrew Gallatin wrote: > > I think this would be fine, But we'd need to know more about the > > hardware limitations of the popular GiGE boards out there. We know > > Tigon-II can handle 4 scatters, but are there any that can handle 3 > > but not four? > > Why would you need 4? I can absolutely guarantee that a jumbo buf > will not go over 3 pages (on i386, and 2 pages on alpha). > Perhaps I misread your earlier message. I thought you wanted to be free to align them on something other than a page boundary, so as to not waste so much space. In that case you'd need 4 scatters on i386, right? Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15653.45342.299963.692216>