Maxtor STM3250310AS is recognized as SATA150 instead of SATA300

[Roman Serbski]

Hi list-

I'm running FreeBSD 7.1-PRERELEASE (cvsuped and built yesterday) on
Asus P5KPL-VM with Maxtor STM3250310AS (250GB) for some reason being
recognized as SATA150. According to P5KPL-VM specs
(http://www.asus.com/products.aspx?l1=3&l2=11&l3=563&l4=0&model=1772&modelmenu=2)
it does support 3Gb/s, so does STM3250310AS
(http://www.seagate.com/staticfiles/support/disc/manuals/maxtor/100451230c.pdf).
Maxtor hard drive came with jumper but removing it didn't help -- I
still see SATA150 in dmesg output. I also updated Asus BIOS to the
latest version and replaced SATA cables -- none of this helped.

Here is more detailed information:

%dmesg | grep SATA
atapci1: <Intel ICH7 SATA300 controller> port
0xc400-0xc407,0xc080-0xc083,0xc000-0xc007,0xbc00-0xbc03,0xb880-0xb88f
irq 19 at device 31.2 on pci0
ad4: 238475MB <MAXTOR STM3250310AS 3.AAC> at ata2-master SATA150

%atacontrol cap ad4

Protocol              Serial ATA II
device model          MAXTOR STM3250310AS
serial number         9RY1LHWX
firmware revision     3.AAC
cylinders             16383
heads                 16
sectors/track         63
lba supported         268435455 sectors
lba48 supported       488397168 sectors
dma supported
overlap not supported

Feature                      Support  Enable    Value           Vendor
write cache                    yes      yes
read ahead                     yes      yes
Native Command Queuing (NCQ)   yes       -      31/0x1F
Tagged Command Queuing (TCQ)   no       no      31/0x1F
SMART                          yes      yes
microcode download             yes      yes
security                       yes      no
power management               yes      yes
advanced power management      no       no      65278/0xFEFE
automatic acoustic management  no       no      0/0x00  208/0xD0

%pciconf -lv
atapci1 at pci0:0:31:2:    class=0x01018f card=0x81791043 chip=0x27c08086
rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller'
    class      = mass storage
    subclass   = ATA

There were couple of similar threads and one guy reported that he was
able to get SATA300 by playing with AHCI settings in BIOS, but I don't
really see anything related to AHCI in my BIOS.

Any hints would be greatly appreciated.

Regards,
Roman