Hi there,
Have an old Thinkpad 365X laptop that 'hdparm -i' tells me is
running mdma2 but it refuses to set dma mode. 2.6.16.18 also
refuses to set dma.
With 2.432-hf32.6 running 'hdparm -c 1 /dev/hda' speeds up the
IDE interface from ~5MB/s to ~7.5MB/s for a reading an unmounted
500MB partition to /dev/null.
Is there something I forgot to do to get DMA operation, or this
one of those early PIIX that Alan is doing new drivers for?
I've yet to try development kernels since udev/pcmciautils not
setup on the thing (yet).
Comment stripped .config and dmesg for 2.4, 2.6 at:
<http://bugsplatter.mine.nu/test/boxen/hal/>
Thanks,
Grant.
appended:
dmesg excerpt
IDE config
uname -r
hdparm -v /dev/hda
lspci -vvvx
/proc/interrupts
/proc/dma
dmesg:
...
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIXa: IDE controller at PCI slot 00:01.0
PIIXa: chipset revision 2
PIIXa: not 100% native mode: will probe irqs later
PIIXa: neither IDE port enabled (BIOS)
hda: TOSHIBA MK6014MAP, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 11733120 sectors (6007 MB), CHS=776/240/63
Partition check:
hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
2.4 IDE settings:
-------------------- IDE, ATA and ATAPI Block devices ------------------
<*> Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
--- Please see Documentation/ide.txt for help/info on IDE drives
[ ] Use old disk-only driver on primary interface
[ ] Support for SATA (deprecated; conflicts with libata SATA driver)
<*> Include IDE/ATA-2 DISK support
[ ] Use multi-mode by default
[ ] Auto-Geometry Resizing support
<M> PCMCIA IDE support <<== for CompactFlash (/dev/hdc)
< > Cardbus IDE support (Delkin/ASKA/Workbit)
< > Include IDE/ATAPI CDROM support
< > Include IDE/ATAPI TAPE support
< > Include IDE/ATAPI FLOPPY support
[ ] IDE Taskfile Access
--- IDE chipset support/bugfixes
[ ] CMD640 chipset bugfix/support
[ ] ISA-PNP EIDE support
[*] PCI IDE chipset support
[ ] Generic PCI IDE Chipset Support <<== on/off: no difference
[ ] Sharing PCI IDE interrupts support
[*] Generic PCI bus-master DMA support
[ ] Boot off-board chipsets first support
[ ] Force enable legacy 2.0.X HOSTS to use DMA
[*] Use PCI DMA by default when available
[ ] Enable DMA only for disks
... (in between off)
<*> Intel PIIXn chipsets support
... (rest are off)
root@stinkpad:~# uname -r
2.4.32-hf32.6
root@stinkpad:~# hdparm -v /dev/hda
/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 776/240/63, sectors = 11733120, start = 0
root@stinkpad:~# hdparm -X mdma2 -d 1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
setting xfermode to 34 (multiword DMA mode2)
using_dma = 0 (off)
root@stinkpad:~# lspci -vvvx
00:00.0 Host bridge: Intel Corporation 430MX - 82437MX Mob. System Ctrlr (MTSC) & 82438MX Data Path (MTDP) (rev 02)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 32
00: 86 80 35 12 06 00 00 22 02 00 00 06 00 20 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:01.0 ISA bridge: Intel Corporation 82371FB PIIX ISA [Triton I] (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00: 86 80 2e 12 07 00 80 02 02 00 01 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:03.0 VGA compatible controller: Trident Microsystems TGUI 9320 (rev e3) (prog-if 00 [VGA])
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 0
Region 0: Memory at 08000000 (32-bit, non-prefetchable) [size=2M]
Region 1: Memory at 08200000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at 000c0000 [disabled] [size=64K]
00: 23 10 20 93 03 00 00 02 e3 00 00 03 00 00 00 00
10: 00 00 00 08 00 00 20 08 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 0c 00 00 00 00 00 00 00 00 00 00 01 00 00
root@stinkpad:~# cat /proc/interrupts
CPU0
0: 106675 XT-PIC timer
1: 3 XT-PIC keyboard
2: 0 XT-PIC cascade
9: 490 XT-PIC xirc2ps_cs
12: 3 XT-PIC PS/2 Mouse
14: 3820 XT-PIC ide0
15: 4 XT-PIC i82365
NMI: 0
ERR: 0
root@stinkpad:~# cat /proc/dma
4: cascade
Grant Coady wrote:
> Hi there,
>
> Have an old Thinkpad 365X laptop that 'hdparm -i' tells me is
> running mdma2 but it refuses to set dma mode. 2.6.16.18 also
> refuses to set dma.
...
No luck with "hdparm -d1 /dev/hda" ??
> ...
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> PIIXa: IDE controller at PCI slot 00:01.0
> PIIXa: chipset revision 2
> PIIXa: not 100% native mode: will probe irqs later
> PIIXa: neither IDE port enabled (BIOS)
> hda: TOSHIBA MK6014MAP, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> hda: attached ide-disk driver.
> hda: host protected area => 1
> hda: 11733120 sectors (6007 MB), CHS=776/240/63
> Partition check:
> hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
...
Mmm.. there's a curious line: "PIIXa: neither IDE port enabled (BIOS)".
Can you enable DMA in the BIOS? The IDE driver seems to be unwilling
to set up the bus-master DMA (BMDMA) portion of the chip unless
it was already initialized by the BIOS (paranoia, I suppose, or maybe a bug).
Cheers
On Sun, 28 May 2006 08:06:52 -0400, Mark Lord <[email protected]> wrote:
>Grant Coady wrote:
>> Hi there,
>>
>> Have an old Thinkpad 365X laptop that 'hdparm -i' tells me is
>> running mdma2 but it refuses to set dma mode. 2.6.16.18 also
>> refuses to set dma.
>...
>
>No luck with "hdparm -d1 /dev/hda" ??
~# hdparm -d1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
2.6.16.18 gives the same result, am I supposed to try hdparm -d1
early in the startup scripts, before / gets remounted rw?
>> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
>> PIIXa: IDE controller at PCI slot 00:01.0
>> PIIXa: chipset revision 2
>> PIIXa: not 100% native mode: will probe irqs later
>> PIIXa: neither IDE port enabled (BIOS)
>> hda: TOSHIBA MK6014MAP, ATA DISK drive
>> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
>> hda: attached ide-disk driver.
>> hda: host protected area => 1
>> hda: 11733120 sectors (6007 MB), CHS=776/240/63
>> Partition check:
>> hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
>...
>
>Mmm.. there's a curious line: "PIIXa: neither IDE port enabled (BIOS)".
>Can you enable DMA in the BIOS?
The IBM pretty BIOS with a bird shaped mouse pointer flapping wings
as it moves? ;) No, the BIOS hasn't much config options.
Installed the ms-dos PS2 utility, no joy there either:
PS2 DISK sets HDD idle standby delay in minutes
PS2 DMA selects DMA channel for audio and printer
Nothing looks like HDD DMA enable in there. Same HDD in another
box via IDE adapter does udma2 (well, it wanted to go faster but
I slowed it down with hdparm -X to suit the HDD spec.).
> The IDE driver seems to be unwilling
>to set up the bus-master DMA (BMDMA) portion of the chip unless
>it was already initialized by the BIOS (paranoia, I suppose, or maybe a bug).
Perhaps a buglet, why I cc'd Alan. I'll check if 2.6.17-rc5 boots
on the thing...
Thanks,
Grant.