Messages in this thread |  | | | Date | Fri, 2 Dec 2005 11:32:10 +0000 | | From | Daniel J Blueman <> | | Subject | Re: What does lspci -vv "DEVSEL=slow" and "DEVSEL=medium" mean? |
The device select settings tells the PCI bus how many bus clock ticks are required between certain PCI bus phases and is dictated by the PCI device on the bus. It sounds like one of the cards you have has an older revision ASIC/chip.
Roger Heflin wrote: > Hello, > > I have 30+ machines, one machine is slower on using an > infiniband card than the than the others, > everything we can find is the same except on the "lspci -vv" the > slow machine reports: > > "DEVSEL=slow" > > And all of the rest report: > > "DEVSEL=medium" > > Both machines have the same bus speed listed, but this is > known to be somewhat shakey on the driver it is using. > > What exactly does this mean? > > We know the bios version is the same and we believe the > bios settings are the same, and that the card > is identical, and in the same slot, and that everything else > is the same. > > Roger ___ Daniel J Blueman - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |