On Thu, 2007-07-26 at 15:36 +0200, Ulrich Windl wrote:
> Hi,
>
> I have a question: The Qlogic ISP2422 chip is said to handle PCI-X 266MHz. So does
> the HP Itanium2 server rx6600. Basically that was the reason to select that
> server. The FC-HBA is in a 266 MHz capable slot. However when booting SLES10 SP1
> for IA64, the logs say:
>
> <6>QLogic Fibre Channel HBA Driver
> <6>GSI 49 (level, low) -> CPU 3 (0x0300) vector 51
> <6>ACPI: PCI Interrupt 0000:0f:01.0[A] -> GSI 49 (level, low) -> IRQ 51
> <6>qla2xxx 0000:0f:01.0: Found an ISP2422, irq 51, iobase 0xc0000000b0040000
> [...]
> <6>qla2xxx 0000:0f:01.0: LOOP UP detected (4 Gbps).
> <6>qla2xxx 0000:0f:01.0: Topology - (F_Port), Host Loop address 0x0
> <6>scsi0 : qla2xxx
> <6>qla2xxx 0000:0f:01.0:
> <4> QLogic Fibre Channel HBA Driver: 8.01.07-k3
> <4> QLogic HP AB378-60001 -
> <4> ISP2422: PCI-X Mode 2 (133 MH4.00.26 [IP] @ 0000:0f:01.0 hdma+, host#=0,
> fw=4.00.26 [IP]
> <5> Vendor: HP Model: HSV200 Rev: 6100
> <5> Type: RAID ANSI SCSI revision: 02
> <5> 0:0:0:0: Attached scsi generic sg0 type 12
>
> Now does Linux support the speed of 266 MHz, and is it just displayed incorrectly,
> or doesn't Linux support the speed of 266MHz yet?
This is a bug in the driver. The lookup table only goes to 133 MHz.
static char *pci_bus_modes[] = {
"33", "66", "100", "133",
The same problem exists in the scsi_misc tree.
> "lspci -v" says:
> 0f:01.0 Fibre Channel: QLogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA
> (rev 02)
> Subsystem: Hewlett-Packard Company Unknown device 12d6
> Flags: bus master, 66MHz, medium devsel, latency 128, IRQ 51
> I/O ports at 6000 [size=256]
> Memory at b0040000 (64-bit, non-prefetchable) [size=4K]
> Expansion ROM at b0000000 [disabled] [size=256K]
> Capabilities: [44] Power Management version 2
> Capabilities: [4c] PCI-X non-bridge device
> Capabilities: [64] Message Signalled Interrupts: Mask- 64bit+ Queue=0/3
> Enable-
> Capabilities: [74] Vital Product Data
>
lspci only tells you capabilities, not the speed that the card is
running at. I think you have to query the PCI bridge chipset to get
this information. I have run a proprietary tool on this configuration
that does this and confirmed that the card is indeed running at 266 MHz.
> Please CC: any replies to my address as I'm not subscribed to the kernel list.
>
> Regards,
> Ulrich Windl
Andrew
--
Andrew Patterson
Hewlett-Packard Company
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