Re: [gentoo-user] setting "using_dma" on a BenQ DVD/RW drive

[Rumen Yotov <rumen_yotov@dir.bg>]

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Roy Wright wrote:

> Rumen Yotov wrote:
>
>> Hi,
>> First thing to do is to make sure you have support for your mobos'
>> chipset into kernel-config.
>> Then emerge/install hdparm and have a customized '/etc/conf.s/hdparm'
>> file.
>> Ex.(mine):
>> hda_args="-d1 -A1 -m16 -u1 -a64" // this is for my hard disk
>> all_args="-d1"                                 // this is for all other
>> disks - DVD-R and DVD-RW
>> Think i took this mainly from install-guide.2005.0. Don't forget to
>> start "/etc/init.d/hdparm start" as root and if everything is OK,
>> "rc-update add hdparm default" to always have this at boot time.
>> Test with "hdparm -Tt /dev/hdX" X is a,b,c,d (for an IDE-disk) check
>> again "man hdparm" for the options ;)
>> HTH. Rumen
>>  
>>
> Here's the details of what I'm seeing from a root shell:
>
> royw-gentoo conf.d # hdparm -d1 /dev/dvd
>
> /dev/dvd:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma    =  0 (off)
>
> royw-gentoo conf.d # less /etc/conf.d/hdparm | grep -v \#
>
> all_args="-d1"
>
> royw-gentoo conf.d # /etc/init.d/hdparm start
> * Caching service dependencies
> ...                                                                     
> [ ok ]
> * Starting hdparm
> ...                                                                                  
> [ ok ]
> * Running hdparm on /dev/cdroms/cdrom0 ...
> HDIO_SET_DMA failed: Operation not permitted
>
> royw-gentoo linux # hdparm -I /dev/dvd
>
> /dev/dvd:
>
> ATAPI CD-ROM, with removable media
>        Model Number:       Memorex DVD+/-RW True-8X
>        Serial Number:      DADC011844WL
>        Firmware Revision:  1.06
> Standards:
>        Likely used CD-ROM ATAPI-1
> Configuration:
>        DRQ response: 50us.
>        Packet size: 12 bytes
> Capabilities:
>        LBA, IORDY(can be disabled)
>        Buffer size: 64.0kB
>        DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
>             Cycle time: min=120ns recommended=120ns
>        PIO: pio0 pio1 pio2 pio3 pio4
>             Cycle time: no flow control=240ns  IORDY flow control=120ns
> Commands/features:
>        Enabled Supported:
>           *    DEVICE RESET cmd
>           *    PACKET command feature set
>           *    Power Management feature set
> HW reset results:
>        CBLID- above Vih
>        Device num = 0 determined by the jumper
>
> royw-gentoo conf.d # lspci
> 0000:00:00.0 Host bridge: Intel Corporation 82875P/E7210 Memory
> Controller Hub (rev 02)
> 0000:00:01.0 PCI bridge: Intel Corporation 82875P Processor to AGP
> Controller (rev 02)
> 0000:00:03.0 PCI bridge: Intel Corporation 82875P/E7210 Processor to
> PCI to CSA Bridge (rev 02)
> 0000:00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R)
> USB UHCI Controller #1 (rev 02)
> 0000:00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R)
> USB UHCI Controller #2 (rev 02)
> 0000:00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R)
> USB UHCI #3 (rev 02)
> 0000:00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R)
> USB UHCI Controller #4 (rev 02)
> 0000:00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R)
> USB2 EHCI Controller (rev 02)
> 0000:00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
> 0000:00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC
> Interface Bridge (rev 02)
> 0000:00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA
> Controller (rev 02)
> 0000:00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus
> Controller (rev 02)
> 0000:00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER
> (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
> 0000:01:00.0 VGA compatible controller: nVidia Corporation NV40
> [GeForce 6800 GT] (rev a1)
> 0000:02:01.0 Ethernet controller: Intel Corporation 82547EI Gigabit
> Ethernet Controller (LOM)
>
> royw-gentoo linux # dmesg | grep -i dma
>  DMA zone: 4096 pages, LIFO batch:1
> ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xF000 irq 14
> ata1: dev 0 ATA, max UDMA/133, 145226112 sectors: lba48
> ata1: dev 1 ATA, max UDMA/133, 145226112 sectors: lba48
> ata1: dev 0 configured for UDMA/133
> ata1: dev 1 configured for UDMA/133
>
> royw-gentoo linux # less /usr/src/linux/.config | grep -i dma
> CONFIG_GENERIC_ISA_DMA=y
> CONFIG_BLK_DEV_IDEDMA_PCI=y
> # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> CONFIG_IDEDMA_PCI_AUTO=y
> # CONFIG_IDEDMA_ONLYDISK is not set
> CONFIG_BLK_DEV_IDEDMA=y
> # CONFIG_IDEDMA_IVB is not set
> CONFIG_IDEDMA_AUTO=y
>
> I'm missing something simple, but just don't see it.
>
> TIA,
> Roy

Hi Roy,
Just guessing here but seems you have SATA drives not IDE, don't
use/know much about SATA yet ;) but maybe this have something to do with
the error on activating DMA, from the logs your hard-disk *is* using
UDMA-133 & PIO4 ?
Could check BIOS-settings, other thoughts here? Check with 'hdparm'
setting on your hard (/dev/sdaX or /dev/....).
All kernel-config you show deals with IDE/ISA settings.
HTH. Rumen

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