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Message-ID: <6278d2220709060059r604464fco2f5c341be29f5cd7@mail.gmail.com>
Date: Thu, 6 Sep 2007 08:59:28 +0100
From: "Daniel J Blueman" <daniel.blueman@...il.com>
To: "Mark Lord" <liml@....ca>, "Andrey Panin" <pazke@...pac.ru>,
"Alan Cox" <alan@...rguk.ukuu.org.uk>
Cc: "Tejun Heo" <htejun@...il.com>, jgarzik@...ox.com,
linux-ide@...r.kernel.org,
"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: ICH Intel PATA short cable override...
On 06/09/07, Mark Lord <liml@....ca> wrote:
> Alan Cox wrote:
> > On Tue, 4 Sep 2007 13:37:22 +0100
> > "Daniel J Blueman" <daniel.blueman@...il.com> wrote:
> >
> >> We see that in ata_piix.c, there is a whitelist for (laptop) Intel ICH
> >> controllers with short cables, tied to specific vendor subsystem IDs.
> >> Since my mini-ITX Ibase MI910F has the subsystem IDs specified as
> >> Intel [1], this is unusable.
> >>
> >> I can't find another existing mechanism to add short cable
> >> information, to allow UDMA/66 for my on-board CF socket.
> >
> > DMI is the other approach (if your box has sane responses to the
> > dmidecode command we can do this).
>
> No, something more flexible is needed here.
>
> For example, I have a Mini-ITX server here, which I personally have
> equipped with a 3" 40W IDE cable that connects to a notebook drive.
>
> The system currently uses UDMA just fine with the IDE drivers,
> but I have not been able to convert it to use the (stock) libata drivers
> because of this silly lack of end-user control.
>
> We really need an override for this -- embedded folks would also apprecaate one.
> Ditto for selecting transfer modes.
>
> Cheers
Thanks for the great suggestions guys. The only useful DMI information
the manufacturer has encoded [1], is the base board model name
('Crestline' here). This feels too generic to use, but the combination
of no vendor name and the 'Crestline' model name may be specific
enough, perhaps?
I do agree with Mark that there should be some override, for normal
PATA ports (as opposed to on-mobo sockets), since the user chooses the
cable. Perhaps we need a port mask in the DMI whitelist too, and a
port-general/specific override mechanism?
Daniel
--- [1]
# dmidecode
SMBIOS 2.3 present.
33 structures occupying 926 bytes.
Table at 0x000F0800.
Handle 0x0000, DMI type 0, 20 bytes
BIOS Information
Vendor: Phoenix Technologies, LTD
Version: 6.00 PG
Release Date: 05/14/2007
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 1024 kB
Characteristics:
ISA is supported
PCI is supported
PNP is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
ESCD support is available
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
5.25"/360 KB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 KB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
LS-120 boot is supported
ATAPI Zip drive boot is supported
BIOS boot specification is supported
Handle 0x0001, DMI type 1, 25 bytes
System Information
Manufacturer: OEM
Product Name: OEM
Version: OEM
Serial Number: OEM
UUID: Not Present
Wake-up Type: Power Switch
Handle 0x0002, DMI type 2, 10 bytes
Base Board Information
Manufacturer: Unknown
Product Name: Crestline
Version: Unknown
Serial Number:
Handle 0x0003, DMI type 3, 17 bytes
Chassis Information
Manufacturer: OEM
Type: Desktop
Lock: Not Present
Version: OEM
Serial Number:
Asset Tag:
Boot-up State: Unknown
Power Supply State: Unknown
Thermal State: Unknown
Security Status: Unknown
OEM Information: 0x00000000
Handle 0x0004, DMI type 4, 35 bytes
Processor Information
Socket Designation: Socket 423
Type: Central Processor
Family: Other
Manufacturer: Intel
ID: FA 06 00 00 FF FB EB BF
Version: Intel(R)
Voltage: 0.0 V
External Clock: 200 MHz
Max Speed: 4000 MHz
Current Speed: 2000 MHz
Status: Populated, Enabled
Upgrade: ZIF Socket
L1 Cache Handle: 0x0008
L2 Cache Handle: 0x0009
L3 Cache Handle: Not Provided
Serial Number:
Asset Tag:
Part Number:
Handle 0x0005, DMI type 5, 20 bytes
Memory Controller Information
Error Detecting Method: 8-bit Parity
Error Correcting Capabilities:
None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 2048 MB
Maximum Total Memory Size: 4096 MB
Supported Speeds:
Other
Supported Memory Types:
DIMM
Memory Module Voltage: 5.0 V
Associated Memory Slots: 2
0x0006
0x0007
Enabled Error Correcting Capabilities:
None
Handle 0x0006, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A0
Bank Connections: 0 1
Current Speed: Unknown
Type: DIMM
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK
Handle 0x0007, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: A1
Bank Connections: None
Current Speed: Unknown
Type: Unknown
Installed Size: Not Installed
Enabled Size: Not Installed
Error Status: OK
Handle 0x0008, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 32 KB
Maximum Size: 32 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Unknown
System Type: Unknown
Associativity: Unknown
Handle 0x0009, DMI type 7, 19 bytes
Cache Information
Socket Designation: External Cache
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Write Back
Location: External
Installed Size: 4096 KB
Maximum Size: 4096 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Unknown
System Type: Unknown
Associativity: Unknown
Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: PRIMARY IDE
Internal Connector Type: On Board IDE
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SECONDARY IDE
Internal Connector Type: On Board IDE
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: FDD
Internal Connector Type: On Board Floppy
External Reference Designator: Not Specified
External Connector Type: None
Port Type: 8251 FIFO Compatible
Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: COM1
Internal Connector Type: 9 Pin Dual Inline (pin 10 cut)
External Reference Designator:
External Connector Type: DB-9 male
Port Type: Serial Port 16450 Compatible
Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: COM2
Internal Connector Type: 9 Pin Dual Inline (pin 10 cut)
External Reference Designator:
External Connector Type: DB-9 male
Port Type: Serial Port 16450 Compatible
Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LPT1
Internal Connector Type: DB-25 female
External Reference Designator:
External Connector Type: DB-25 female
Port Type: Parallel Port ECP/EPP
Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Keyboard
Internal Connector Type: PS/2
External Reference Designator:
External Connector Type: PS/2
Port Type: Keyboard Port
Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: PS/2 Mouse
Internal Connector Type: PS/2
External Reference Designator:
External Connector Type: PS/2
Port Type: Mouse Port
Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Specified
Internal Connector Type: None
External Reference Designator: USB0
External Connector Type: Other
Port Type: USB
Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Specified
Internal Connector Type: None
External Reference Designator: USB1
External Connector Type: Other
Port Type: USB
Handle 0x0014, DMI type 9, 13 bytes
System Slot Information
Designation: PCI0
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 1
Characteristics:
5.0 V is provided
PME signal is supported
Handle 0x0015, DMI type 9, 13 bytes
System Slot Information
Designation: PCI1
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 2
Characteristics:
5.0 V is provided
PME signal is supported
Handle 0x0016, DMI type 9, 13 bytes
System Slot Information
Designation: PCI2
Type: 32-bit PCI
Current Usage: In Use
Length: Long
ID: 3
Characteristics:
5.0 V is provided
PME signal is supported
Handle 0x0017, DMI type 9, 13 bytes
System Slot Information
Designation: PCI3
Type: 32-bit PCI
Current Usage: In Use
Length: Long
ID: 4
Characteristics:
5.0 V is provided
PME signal is supported
Handle 0x0018, DMI type 13, 22 bytes
BIOS Language Information
Installable Languages: 3
n|US|iso8859-1
n|US|iso8859-1
r|CA|iso8859-1
Currently Installed Language: n|US|iso8859-1
Handle 0x0019, DMI type 16, 15 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 2 GB
Error Information Handle: Not Provided
Number Of Devices: 2
Handle 0x001A, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0019
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: A0
Bank Locator: Bank0/1
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: Not Specified
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Handle 0x001B, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0019
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: A1
Bank Locator: Bank2/3
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Not Specified
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Handle 0x001C, DMI type 19, 15 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0003FFFFFFF
Range Size: 1 GB
Physical Array Handle: 0x0019
Partition Width: 0
Handle 0x001D, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0003FFFFFFF
Range Size: 1 GB
Physical Device Handle: 0x001A
Memory Array Mapped Address Handle: 0x001C
Partition Row Position: 1
Handle 0x001E, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000000003FF
Range Size: 1 kB
Physical Device Handle: 0x001B
Memory Array Mapped Address Handle: 0x001C
Partition Row Position: 1
Handle 0x001F, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected
Handle 0x0020, DMI type 127, 4 bytes
End Of Table
--
Daniel J Blueman
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