From owner-freebsd-mobile Mon Sep 13 23:50:26 1999 Delivered-To: freebsd-mobile@freebsd.org Received: from mail3.svr.pol.co.uk (mail3.svr.pol.co.uk [195.92.193.19]) by hub.freebsd.org (Postfix) with ESMTP id 9321014DD7 for ; Mon, 13 Sep 1999 23:50:21 -0700 (PDT) (envelope-from s.mitchell@computer.org) Received: from modem-44.umbrella.dialup.pol.co.uk ([62.136.149.44] helo=lungfish.freeserve.co.uk) by mail3.svr.pol.co.uk with esmtp (Exim 2.12 #2) id 11QmQ0-0005hy-00; Tue, 14 Sep 1999 07:50:20 +0100 Received: (from scott@localhost) by lungfish.freeserve.co.uk (8.8.8/8.8.8) id AAA01763; Mon, 13 Sep 1999 00:31:48 +0100 (BST) (envelope-from scott) Message-ID: <19990913003148.29772@lungfish.freeserve.co.uk> Date: Mon, 13 Sep 1999 00:31:48 +0100 From: Scott Mitchell To: Andre Albsmeier Cc: FreeBSD-mobile@FreeBSD.ORG Subject: Re: Recommendation for a GOOD 100 MBit Ethernet card wanted References: <19990905192333.A34635@internal> <19990908064231.A1059@internal> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89i In-Reply-To: <19990908064231.A1059@internal>; from Andre Albsmeier on Wed, Sep 08, 1999 at 06:42:31AM +0200 X-Operating-System: FreeBSD 2.2.6-RELEASE i386 Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, Sep 08, 1999 at 06:42:31AM +0200, Andre Albsmeier wrote: > On Tue, 07-Sep-1999 at 15:36:03 -0700, Doug White wrote: > > On Sun, 5 Sep 1999, Andre Albsmeier wrote: > > > > > I am looking for a 100MBit Ethernet card for use with 3.2-STABLE which > > > does perform better than the "Intel EtherExpress(TM) PRO/100 PC C". > > > Currently, I am using this one with the xe driver, but performance is > > > rather bad (about 1.2 MBytes/sec). According to if_xe.c, this is due > > > to the way the card is handled by the driver: > > > > > > * Note that the crappy PIO used to get packets on and off the card means that > > > * you will spend a lot of time in this routine -- I can get my P150 to spend > > > * 90% of its time servicing interrupts if I really hammer the network. Could > > > * fix this, but then you'd start dropping/losing packets. The moral of this > > > * story? If you want good network performance _and_ some cycles left over to > > > * get your work done, don't buy a Xircom card. Or convince them to tell me > > > * how to do memory-mapped I/O :) > > > > ISA or PCI? > > PCMCIA :-) Sorry, I thought, this would have been clear since the post > went to -mobile :-). As the author of that comment in the xe driver I should probably step in here. I could be wrong, but I suspect you'll be SOL finding a 100Mbit PCMCIA card that gives anything approaching 100Mbit performance. CardBus would be another story, but support for that is still limited. The 10/100 PCMCIA cards are nice, in that they'll attach to a mixed or 100Mbit-only network, and give you a bit of extra bandwidth. I wouldn't expect much more than that though. I'm happy to be corrected on this -- anyone out there have experience with any other such cards? Cheers, Scott -- =========================================================================== Scott Mitchell | PGP Key ID | "Eagles may soar, but weasels Cambridge, England | 0x54B171B9 | don't get sucked into jet engines" s.mitchell@computer.org | 0xAA775B8B | -- Anon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message