From: ygosset <ygosset@free.fr>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: linux-ide@vger.kernel.org
Subject: Device ICH7 for ahci driver
Date: Sun, 15 Jun 2014 17:05:13 +0200 [thread overview]
Message-ID: <539DB629.6020207@free.fr> (raw)
Hello
I have the mainboard G41M-E43 from MSI.
The Sata controller comes from the ICH7 chip, with the speed of UDMA 133.
Here is identifiers by the Pci bus:
"lspci -nn | grep SATA
00:1f.2 IDE interface [0101]: Intel Corporation NM10/ICH7 Family SATA
Controller [IDE mode] [8086:27c0] (rev 01)"
So, I have connected Sata drives on it and this is no at the full speed.
It was fine before, because I don't need speed into this computer.
Today, I'm looking for performance, and I can't change the speed to
SERIAL ATA II:
- I have no option into the latest bios of the motherboard to specify
AHCI mode
- I have tried "setpci -d 8086:27c0 90.b=40" or "setpci -s 00:1f.2
90.b=40" in the grub configuration with no effect .
I'm looking for help.
I've find your email because I have read the file
linux-source-3.2.0/drivers/ata/ahci.c .
Is it a new device for this driver ?
Have you a workaround like 'setpci ...' to change the speed of the Sata
controller ?
Thanks a lot!
Regards, Yvan.
--
ygosset@free.fr
GnuPG sur hkp://pool.sks-keyservers.net
reply other threads:[~2014-06-15 15:05 UTC|newest]
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