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Date: Wed, 17 Oct 2007 13:07:02 +0200 From: Martin Mares <mj@....cz> To: John Sigler <linux.kernel@...e.fr> Cc: linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz Subject: Re: Understanding lspci output Hello! > I ran lspci -vvv on a system: > http://linux.kernel.free.fr/halt/lspci.txt > > (I used lspci version 2.2.5 in case it matters.) > > But I'm having a hard time making sense of the output. > > 1. How many PCI buses are there in the system? Two, just see the bus numbers of the devices. (However, there might be additional buses with no devices present and in case these are connected to a separate host bridge, they need not be visible.) > 4. Does the system have a PCI-X bus? Yes, the devices on bus 01 are PCI-X devices, so there is a PCI-X bus. > 2. Do any of the PCI buses support 66 MHz operation? Yes, PCI-X does. > 3. Do any of the PCI slots support 64-bit data path? This cannot be inferred from the lspci output -- there is no way how to tell if a bus has physical slots or it exists only internally. Have a nice fortnight -- Martin `MJ' Mares <mj@....cz> http://mj.ucw.cz/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth hAS ANYONE SEEN MY cAPSLOCK KEY? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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