Re: piixide: lost interrupts (Intel Atom Mini-ITX)

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

On Tue, Sep 15, 2009 at 04:00:05PM +0300, Teemu Rinta-aho wrote:
> piixide0 at pci0 dev 31 function 2: Intel 82801GB/GR Serial ATA/Raid 
> Controller (ICH7) (rev. 0x01)
> piixide0: bus-master DMA support present
> piixide0: primary channel configured to compatibility mode
> piixide0: primary channel interrupting at ioapic0 pin 14
> 
> even when I have configured "native" mode in the BIOS?
> 
> And, where are the SATA 150/300 speeds? Not that I need those but anyway,
> there's nothing that looks like SATA here:

Well, the hostadapter is not running in full SATA mode. It is running in
IDE compatibility mode. Here is what SATA (AHCI) mode looks like:

ahcisata0 at pci0 dev 31 function 2: Intel 82801GB/GR AHCI SATA Controller
ahcisata0: interrupting at ioapic0 pin 19
ahcisata0: AHCI revision 1.1, 4 ports, 32 command slots, features 0xc720e000
atabus2 at ahcisata0 channel 0
atabus3 at ahcisata0 channel 1
atabus4 at ahcisata0 channel 2
atabus5 at ahcisata0 channel 3
[...]
ahcisata0 port 0: device present, speed: 1.5Gb/s
ahcisata0 port 1: device present, speed: 1.5Gb/s
ahcisata0 port 2: device present, speed: 1.5Gb/s
ahcisata0 port 3: device present, speed: 3.0Gb/s
[...]

> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 7
> wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using 
> DMA)

The speed reported here isn't really meaningful for SATA. I get this
from a disks connected to a SATA hostadapter:

wd0 at atabus2 drive 0: <ST3500320NS>
wd0: quirks 2<FORCE_LBA48>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) 
(using DMA)

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/