Re: Q: PCI-X @ 266MHz on HP rx6600 (Qlogic 4Gb FC HBA)

From: Andrew Vasquez
Date: Tue Jul 31 2007 - 12:50:26 EST


> On Fri, 27 Jul 2007, Andrew Patterson wrote:
>
> > On Thu, 2007-07-26 at 23:23 -0700, Andrew Vasquez wrote:
> >
> > > The 33/66/100/133 values refer to the bus-clock speed at which the
> > > card is operating. As is seen here (although a bit truncated --
> > > separate issue, I'll try to see if I can reproduce this on one of my
> > > HPQ rigs), the card is inserted into a PCI-X Mode-2 capable 133MHz
> > > (bus clock) slot. When operating under this mode, each data-phase
> > > between two devices is divided into 2 sub-phases, effectively doubling
> > > the transfer-data-rate to 266Mhz.
> >
> > I guess the proper terminology would be 266 MT/s (Mega
> > Transfers/second). Looking through the PSI_SIG PCI-X 2.0 marketing
> > blurbs, they use MHz a lot when referring to MT/S. So I would still
> > consider this to be a minor bug. The user wants to know the transfer
> > rate, not the actual frequency of the bus. Maybe just print out the
> > mode used instead, e.g., "PCI-X 266"?

Given PCI-X Mode-2 can run at different bus-clock speeds, how about
this as an alternative?

PCI-X 266 (133Mhz)

it's a bit more descriptive than

PCI-X Mode 2 (133Mhz)

then again, I don't want to beat this thing to death...

---

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index c488996..26f7e54 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -283,9 +283,9 @@ qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
} else {
strcat(str, "-X ");
if (pci_bus & BIT_2)
- strcat(str, "Mode 2");
+ strcat(str, "266");
else
- strcat(str, "Mode 1");
+ strcat(str, "133");
strcat(str, " (");
strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
}
-
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