Date: Fri, 30 Sep 2005 09:17:09 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-alpha@freebsd.org, walter@alasir.com Subject: Re: [patch] cia BWX oddity in RELENG4 Message-ID: <200509300917.10020.jhb@FreeBSD.org> In-Reply-To: <E1ELKE8-0004RA-1b@webmail05.int.bizland.net> References: <E1ELKE8-0004RA-1b@webmail05.int.bizland.net>
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On Friday 30 September 2005 08:43 am, Paul V. Bolotoff wrote: > Good time of day, > > There is a strange issue in alpha/pci/cia.c, which prevents the kernel from > utilising the BWX features of the Alcor 2 chipset (21172). In fact, the > code makes no difference between Alcor 2 and Alcor (21171), which has no > BWX support at all. The patch attached fixes this behaviour. > > Before and after the patch. As you can see, BWX has been enabled > successfully. The system (AlphaServer 800) is up and running as usual. > > # sysctl -a | grep hw.chipset > > hw.chipset.type: cia > hw.chipset.bwx: 0 > hw.chipset.ports: 573378134016 > hw.chipset.memory: 549755813888 > hw.chipset.dense: 575525617664 > hw.chipset.hae_mask: 3758096384 > > hw.chipset.type: alcor2 > hw.chipset.bwx: 1 > hw.chipset.ports: 588410519552 > hw.chipset.memory: 584115552256 > hw.chipset.dense: 575525617664 > hw.chipset.hae_mask: 0 > > By the way, I see this issue has been fixed in RELENG5 some time ago, > though in somewhat different way. Why not in RELENG4? Probably because development on RELENG_4 has basically stopped. 4.11 was the last release on 4.x. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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