Date: Wed, 27 Oct 1999 01:35:57 -0700 (PDT) From: =?iso-8859-1?q?eT?= <etdebruin@yahoo.com> To: hackers@freebsd.org Subject: PCI bus Latency Message-ID: <19991027083557.22017.rocketmail@web1402.mail.yahoo.com>
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Greetings .. When doing a pci_read_config(dev, PCI_LATENCY_TIMER, 4) I get varying values on different hardware configurations. On Machine A the value is 32 and my device driver (using DMA) works fine. On Machine B the value is 64 and my device driver doesn't work fine - there seem s to be these hickups in which the Chip writing to the PCI controller says it ha s finished transferring data but the write counters are still > 0. My card works closely with two network cards in the system. Actually, I reckon I just need some pointers and things to remember when it come s to dealing with latency. Any help? Regards eT ===== Etienne de Bruin <eT@post.com> http://www.geocities.com/etdebruin __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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