Date: Thu, 1 Nov 2012 19:50:01 GMT From: Michael Schuh <michael.schuh@gmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/173251: ACHI/ATA_CAM doesn't find any SATA Disk on ICH7 - Dell SC430 Message-ID: <201211011950.qA1Jo1j2002483@freefall.freebsd.org>
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The following reply was made to PR kern/173251; it has been noted by GNATS. From: Michael Schuh <michael.schuh@gmail.com> To: bug-followup@freebsd.org Cc: Subject: Re: kern/173251: ACHI/ATA_CAM doesn't find any SATA Disk on ICH7 - Dell SC430 Date: Thu, 1 Nov 2012 20:42:30 +0100 According to http://www.intel.com/content/www/us/en/io/i-o-controller-hub-7= -datasheet.html if i understand the documentation and ata-intel.c right, this is a bug programmed into ata-intel.c. cause of: This document is intended for Original Equipment Manufacturers and BIOS ven= dors creating Intel=AE I/O Controller Hub 7 (ICH7) Family based products. This document is the datasheet for the following: =95 Intel=AE 82801GB ICH7 (ICH7) =95 Intel=AE 82801GR ICH7 RAID (ICH7R) =95 Intel=AE 82801GDH ICH7 Digital Home (ICH7DH) =95 Intel=AE 82801GBM ICH7 Mobile (ICH7-M) =95 Intel=AE 82801GHM ICH7 Mobile Digital Home (ICH7-M DH) =95 Intel=AE 82801GU ICH7-U Ultra Mobile (ICH7-U) Note: Throughout this datasheet, the terms =93Desktop=94, =93Digital Home= =94 =93Mobile=94, and =93Ultra Mobile=94 refer to the following components, unless specifically noted otherwise: =95 Desktop refers to the 82801GB ICH7, 82801GR ICH7R, and 82801GDH = ICH7DH. =95 Digital Home refers to the 82801GDH ICH7DH and 82801GHM ICH7-M D= H. =95 Mobile refers to the 82801GBM ICH7-M, and 82801GHM ICH7-M DH. =95 Ultra Mobile refers to the 82801GU ICH7-U. AHCI (Intel=AE ICH7R, ICH7DH, and Mobile Only) The ICH7 provides hardware support for Advanced Host Controller Interface (AHCI), a new programming interface for SATA host controllers. Platforms supporting AHCI may take advantage of performance features such as no master/slave designation for SATA devices=97each device is treated as a master=97and hardware-assisted native= command queuing. AHCI also provides usability enhancements such as Hot-Plug (Deskto= p and Mobile Only). AHCI requires appropriate software support (e.g., an AHCI driver) and for some features, hardware support in the SATA device or additional platform hardware. <<< 82801GB no AHCI capability there????? Not all ICH7 Chipsets are capable of doing AHCI. I am not sure if the chip reported ID's are right translated in ata-intel.c oder pci devices.
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