Greetings,
I'm attempting to change the pci latency for my SATA controller. Based
on information I found from various sources, the following *should*
work. However, when I do the setpci, the latency remains unchanged. Am
I missing something?
lspci -v
<snip>
00:05.0 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2)
(prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Unknown device 8239
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 10
I/O ports at 09f0 [size=8]
I/O ports at 0bf0 [size=4]
I/O ports at 0970 [size=8]
I/O ports at 0b70 [size=4]
I/O ports at dc00 [size=16]
Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Capabilities: [b0] Message Signalled Interrupts: 64bit+ Queue=0/2
Enable-
Capabilities: [cc] HyperTransport: MSI Mapping
<snip>
[root@mythtvserver1 ~]# setpci -v -s 00:05.0 latency_timer=ff
00:05.0:0d ff
lspci -v
<snip>
00:05.0 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2)
(prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Unknown device 8239
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 10
I/O ports at 09f0 [size=8]
I/O ports at 0bf0 [size=4]
I/O ports at 0970 [size=8]
I/O ports at 0b70 [size=4]
I/O ports at dc00 [size=16]
Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Capabilities: [b0] Message Signalled Interrupts: 64bit+ Queue=0/2
Enable-
Capabilities: [cc] HyperTransport: MSI Mapping
Is this just a function of the controller/MB? Or am I missing something
obvious?
The motherboard is Asus M2N-SLI deluxe.
TIA
Brian
