Date: Thu, 5 Nov 1998 16:56:13 -0500 From: Lee Cremeans <lee@st-lcremean.tidalwave.net> To: hackers@FreeBSD.ORG Subject: Coprocessor board--which I/O method should I use? Message-ID: <19981105165613.A955@tidalwave.net>
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I'm writing a device driver for a board we're de3veloping at work that does encryption and compression in hardware. This board is going to be used in embedded applications (it's a PCI board), like VPNs and firewalls, so it'll be handling a good amount of data. For something like this, what would be the best way to do I/O from userland to the card? I'm thinking character would do, but I'd appreciate other opinions, and also being told if I'm off-base. Also, I'd need to know which interrupt level (net, bio, tty, etc.) this thing should be in. PS: this card is just a processor board, it is not a network protocol controller. -- Lee Cremeans -- Manassas, VA, USA (WakkyMouse on DALnet and WTnet) A! JW223 YWD+++^ri P&B++ SL+++^i GDF B&M KK--i MD+++i P++ I++++ Did $++ E5/10/70/3c/73ac/95/96 H2 PonPippi Ay77 M | mailto:lcremean@tidalwave.net http://st-lcremean.tidalwave.net | Powered by FreeBSD 3.0-CURRENT To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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