From owner-freebsd-atm Wed Jan 17 17: 4:21 2001 Delivered-To: freebsd-atm@freebsd.org Received: from cage.simianscience.com (cage.simianscience.com [64.7.134.1]) by hub.freebsd.org (Postfix) with ESMTP id CA74937B69F for ; Wed, 17 Jan 2001 17:04:03 -0800 (PST) Received: (from root@localhost) by cage.simianscience.com (8.11.1/8.11.1) id f0I142g37422; Wed, 17 Jan 2001 20:04:02 -0500 (EST) (envelope-from mike@sentex.net) Received: from chimp (fcage [192.168.0.2]) by cage.simianscience.com (8.11.1/8.11.1av) with ESMTP id f0I13vd37414; Wed, 17 Jan 2001 20:03:57 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <4.2.2.20010117195924.01bde6f8@marble.sentex.net> X-Sender: mdtancsa@marble.sentex.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Wed, 17 Jan 2001 20:03:56 -0500 To: Chuck Cranor From: Mike Tancsa Subject: Re: ATM under 4.x STABLE ? Cc: freebsd-atm@freebsd.org In-Reply-To: <20010117195217.A2037890@chips.research.att.com> References: <5.0.1.4.0.20010116114713.033bd7c0@marble.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by AMaViS perl-10 Sender: owner-freebsd-atm@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org At 07:52 PM 1/17/2001 -0500, Chuck Cranor wrote: > Mike's system supports large DMA bursts (64 byte), but the starting >address of the buffer must be aligned to a 64 byte boundary (that's >why it says "(must align)" and printed the warning). i don't think >this will be a major problem (if you've got a large DMA, you can break >it up into chunks to get the needed 64 byte alignment... the driver >will do this for you). Thanks for the follow up/clarification. From my initial netperf tests, I am quite happy with the throughput of the card. The box only needs to push 30Mb/s, and it seems it can handle that in tests no problem. Not sure how it will do in the real world, but I figure its worth a try since if this works, there are a few other applications I can use this type of setup for! ---Mike ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Network Administration, mike@sentex.net Sentex Communications www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-atm" in the body of the message