Subject: Re: MPACPI fix (for those who had trouble with it, urgent!)
To: None <,,>
From: Matthias Scheler <>
List: port-amd64
Date: 05/17/2004 09:03:35
In article <>, (John Nemeth) writes:
> } That was whether a CSA-connected LAN exists or not!
>      I'm guessing you mean ISA here?

No, he means CSA (Communication Streaming Architecture). It's a special
interconnect used for the onboard Gigabit ethernet on recent Intel chipset
based motherboards. The advantage is that the Gigabit ethernet isn't slowed
downed by the 33MHz/32Bit PCI bus (CSA supports up to 266MB/Sec) and the
PCI bus is satured by the Gigabit ethernet.

Here is "dmesg" output from my motherboard for such a device:

wm0 at pci2 dev 1 function 0: Intel i82547EI 1000BASE-T Ethernet, rev. 0
wm0: interrupting at ioapic0 pin 18 (irq 10)
wm0: 32-bit 33MHz PCI bus
wm0: 65536 word (16 address bits) SPI EEPROM
wm0: Ethernet address 00:07:e9:67:18:7b
igphy0 at wm0 phy 1: Intel IGP01E1000 Gigabit PHY, rev. 0
igphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto

The "7" in "i82547EI" identifies it as a CSA device.

	Kind regards

Matthias Scheler