Problem with libata 40-wire

[ntrl]

Hello all!

I use CF-IDE adaptor with CF card SiliconPower 8GB 300x. His support UDMA 6 and fixed ide mode.
I use 2 partitions. On sda1 - winXP, on sda2 Ubuntu 8.04.
On windows XP transfer from flash ~45mb/sec. Windows booting 5 secs. :)

But in Linux 40-wire problem, udma2 use instead udma6.

I appling this patch (http://pixca.net/blog/bits-and-bytes/limited-to-udma33-due-to-40-wire-cable/)on distro-kernel 2.6.24-19-generic. But nothing to do :(
libata parameter - force_cbl=80

Here dmesg's log:

serge@tpx40:~$ dmesg | grep ata
[ 0.000000] BIOS-e820: 000000002f6e0000 - 000000002f6f7000 (ACPI data)
[ 3.187618] Memory: 758020k/777088k available (2177k kernel code, 18456k reserved, 1006k data, 368k init, 0k highmem)
[ 3.187699] .data : 0xc0320434 - 0xc041bdc4 (1006 kB)
[ 4.027300] ACPI: EC: GPE = 0x1c, I/O: command/status = 0x66, data = 0x62
[ 5.647700] libata: no version for "struct_module" found: kernel tainted.
[ 5.656391] libata version 3.00 loaded.
[ 6.880275] ata_piix 0000:00:1f.1: version 2.12
[ 6.881265] scsi0 : ata_piix
[ 6.881822] scsi1 : ata_piix
[ 6.882937] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1810 irq 14
[ 6.882983] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1818 irq 15
[ 7.052143] ata1: forcing 80c
[ 7.052207] ata1.00: ATA-0: SILICON POWER, 20070831, max UDMA/133
[ 7.052251] ata1.00: 15662304 sectors, multi 0: LBA
[ 7.052307] ata1.00: limited to UDMA/33 due to 40-wire cable
[ 7.068085] ata1.00: configured for UDMA/33
[ 7.092090] ata1.00: configured for UDMA/33
[ 7.092137] ata1: EH complete
[ 7.247720] ata2: forcing 80c
[ 8.006132] ReiserFS: sda2: using ordered data mode


I build new kernel 2.6.25.9, libata parameter force=80c, kernel probing use udma6 mode, but just as nothing to do.
"limited to UDMA/33 due to 40-wire cable, configured for UDMA/33" :(


serge@tpx40:~$ sudo hdparm -tT /dev/sda
[sudo] password for serge:

/dev/sda:
Timing cached reads: 940 MB in 2.00 seconds = 469.91 MB/sec
Timing buffered disk reads: 70 MB in 3.05 seconds = 22.98 MB/sec



My hardware: IBM thinkpad X40, CF siliconimage 8GB 300x.

Please help me!

PS. sorry for bad English.

[ntrl]

YES!

I build new devel kernel's version 2.6.26rc8, and UDMA100 will work :)


root@tpx40:/usr/src# uname -a
Linux tpx40 2.6.26-rc8 #1 SMP Mon Jun 30 00:12:32 MSD 2008 i686 GNU/Linux
root@tpx40:/usr/src#
root@tpx40:/usr/src# dmesg | grep ata
[ 0.000000] BIOS-e820: 000000002f6e0000 - 000000002f6f7000 (ACPI data)
[ 0.000000] PERCPU: Allocating 39592 bytes of per cpu data
[ 0.004000] Memory: 758752k/777088k available (2152k kernel code, 17764k reserved, 761k data, 360k init, 0k highmem)
[ 0.004000] .data : 0xc031a2ff - 0xc03d8900 ( 761 kB)
[ 0.337429] ACPI: EC: GPE = 0x1c, I/O: command/status = 0x66, data = 0x62
[ 1.851953] libata version 3.00 loaded.
[ 3.405125] ata_piix 0000:00:1f.1: version 2.12
[ 3.405136] ata_piix 0000:00:1f.1: enabling device (0005 -> 0007)
[ 3.405575] scsi0 : ata_piix
[ 3.406125] scsi1 : ata_piix
[ 3.407478] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1810 irq 14
[ 3.407524] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1818 irq 15
[ 3.576287] ata1.00: ATA-0: SILICON POWER, 20070831, max UDMA/133
[ 3.576338] ata1.00: 15662304 sectors, multi 0: LBA
[ 3.576392] ata1.00: FORCE: xfer_mask set to udma100
[ 3.592226] ata1.00: configured for UDMA/100
[ 3.600229] ata1.00: FORCE: xfer_mask set to udma100
[ 3.616257] ata1.00: configured for UDMA/100
[ 3.616299] ata1: EH complete
[ 4.503453] ReiserFS: sda2: using ordered data mode
root@tpx40:/usr/src# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 1288 MB in 2.00 seconds = 643.81 MB/sec
Timing buffered disk reads: 136 MB in 3.01 seconds = 45.21 MB/sec