Date: Fri, 31 Jan 2003 00:24:44 +0900 From: Yasuyuki Okase <yokase@din.or.jp> To: freebsd-ia64@FreeBSD.ORG Cc: yokase@din.or.jp Subject: Re: Problems with fxp driver Message-ID: <20030131002444D.yokase@din.or.jp> In-Reply-To: <20030128073021.B3E022A89E@canning.wemm.org> References: <20030128145803D.yokase@din.or.jp> <20030128073021.B3E022A89E@canning.wemm.org>
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Thank you for mail. > > > I forgot to mention that I've tried two different i2000's so far. So, > > > next question would be: > > > has anyone succeeded in using the fxp driver in an i2000 box? > > > > Yes. > > However, only 2GB RAM has been recognized. > > The fxp driver does not yet use the busdma subsystem. This means that it > cannot use memory above the 4GB mark. In the meantime, we ignore memory > above the 4GB mark. Note that on most ia64 systems with more than 2GB of > ram, only 2GB is reachable inside the bottom 4GB of address space. The other > 2GB of space is usually reserved for system and PCI use. I see. In EFI shell, memmap command returns following. Type Start End # Pages (snip) available 0000000000100000-000000007F23DFFF 000000000007F13E (snip) available 0000000100000000-000000023FE80FFF 000000000013FE81 (snip) > If you have 64 bit capable devices (em, bge, mpt, etc) or busdma using > devices (ahc, xl, etc), then you can remove the code that ignores the memory > above 4GB from the /usr/src/sys/ia64/ia64/machdep.c file. It displays > a message about it at boot, so it is easy to find. Memory descriptor count: 37 (snip) MD 4: type 7 pa 0x100000 cnt 0x7f13e <--- 0GB to 2GB Descriptor 4 contains kernel (snip) MD 14: type 7 pa 0x100000000 cnt 0x13fd74 Skipping memory chunk start 0x100000000 <--- 4GB to 9GB (snip) > But do not do this ifyou want to use fxp or an isp qlogic scsi controller. Since I don't have ASC-29160 in the misfortune, either, I cannot but use qLogic. Examine buying it. -- Yasuyuki Okase yokase@din.or.jp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ia64" in the body of the message
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