Date: Mon, 15 Mar 1999 14:07:05 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: mjacob@feral.com Cc: alpha@FreeBSD.ORG Subject: Re: revisiting...old business...Alpha I/O vs. Mem Mapping Message-ID: <14061.22721.176843.417064@grasshopper.cs.duke.edu> In-Reply-To: <Pine.LNX.4.04.9903151016380.7456-100000@feral-gw> References: <14043.64310.216520.299580@grasshopper.cs.duke.edu> <Pine.LNX.4.04.9903151016380.7456-100000@feral-gw>
next in thread | previous in thread | raw e-mail | index | archive | help
Matthew Jacob writes: > > If I remember right, the 20152 in an AS600 doesn't support I/O space > > mapping of devices behind it. That address of 00000000 sure looks > > bogus to me anyway.. For devices behind a ppb, we should be checking > > that PCIM_CMD_PORTEN is set on the bridge its behind.. I don't really > > know how to architect that though.. > > > > At any rate, try setting SCSI_ISP_PREFER_MEM_MAP to 1 in isp_pci.c & > > see if that helps. > > > > Drew > > Drew- you wanted to make MEM map the default for all alpha platforms, but > I've had a reluctance to do so. If I/O mapping is broken here, perhaps the > best place to fix this is in the PCI code? What do you think? That's certainly the right thing to do. I don't think I understand the code well enough to do this myself though.. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14061.22721.176843.417064>