On Mon, Nov 3, 2008 at 2:44 PM, yhlu <[EMAIL PROTECTED]> wrote: > > > On Mon, Nov 3, 2008 at 11:52 AM, ron minnich <[EMAIL PROTECTED]> wrote: > >> On Mon, Nov 3, 2008 at 11:46 AM, yhlu <[EMAIL PROTECTED]> wrote: >> >> > one HP's AMD based workstation (like tyan s2895) has that ... one ht >> chain >> > ==> one pci domain. >> > you could enable that in BIOS setup. (HP's own BIOS) >> >> >> Is there any benefit to it? > > > more than 255 pci buses. think about if you have 32 ht chains...
Sorry to be dense, but how do you have more than 4 HT chains? Aren't there are only 8 nodes allowed in a system (3 links per node)? If you took out the middle links in an 8-way design I guess you could have 8 HT chains. And I guess if you made it into a chain you could have 10. I'm obviously missing something, because it seems silly. > amd Family 10h cpu could support 16 domains ( 4 bits for domain...) > > YH > Could you point me to a section of a BKDG? I found something about protection domains, but it looked like it was only for DMA. I don't see how our current PCI functions could use domains. Thanks, Myles
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