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SubjectRe: IDE? IDE-TNG driver
Andre Hedrick (andre@linux-ide.org) wrote :
> I will hand it to you guys on a silver platter IDE-TNG.
>
> Below yields modular chipsets and channel index registration.
> Selectable IOPS for arch independent Taskfile Transport layers.
> Now to finish the job with device class link lists to address fully
> modular subdrivers. It also includes 1st generation of device open and
> select calls of subdrivers.

Will it support DISCONNECT/RECONNECT ( of course named differently
in ATA, "overlapped command feature" if I'm not mistaken ) ?

If not, consider this as a request for implementation :-)
I can offer (beta)testing ( I have two ATAPI CD-ROMs ( one is a
rewriter ) and a HD , that all claim ( according to hdparm -I output )
to support overlapped commands ) and maybe money, if everything else
fails :-)

I expect this to improve performance ( latency actually ) on the ATA
channel when slow devices are involved ( and even fast devices can have
slow moments, like a read of a slightly broken sector ).

Best regards,
david balazic


> You have ide-cd registered on a cdrw and you want to burn a cd?
> open(/dev/hdX) transform_subdriver_scsi close(/dev/hdX)
> open(/dev/sg) and burn baby burn.
> close(/dev/sg) releases transform_subdriver_scsi
> open(/dev/hdX) load native atapi transport.
>
> Will do it for TAPE-FLOPPY-DVDCD/RW ...
>
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> SiI680: IDE controller on PCI bus 00 dev 90
> SiI680: chipset revision 1
> SiI680: not 100% native mode: will probe irqs later
> SiI680: BASE CLOCK == 133
> ide0: MMIO-DMA at 0xe080df00-0xe080df07, BIOS settings: hda:pio, hdb:pio
> ide1: MMIO-DMA at 0xe080df08-0xe080df0f, BIOS settings: hdc:pio, hdd:pio
> hda: Maxtor 4G160J8, ATA DISK drive
> hdb: Maxtor 4G160J8, ATA DISK drive
> ide0 at 0xe080df80-0xe080df87,0xe080df8a on irq 9
> hda: host protected area => 1
> hda: 320173056 sectors (163929 MB) w/2048KiB Cache, CHS=19929/255/63, UDMA(133)
> hdb: host protected area => 1
> hdb: 320173056 sectors (163929 MB) w/2048KiB Cache, CHS=19929/255/63, UDMA(133)
> hdc: Maxtor 4G160J8, ATA DISK drive
> hdd: Maxtor 4G160J8, ATA DISK drive
> ide1 at 0xe080dfc0-0xe080dfc7,0xe080dfca on irq 9
> hdc: host protected area => 1
> hdc: 320173056 sectors (163929 MB) w/2048KiB Cache, CHS=19929/255/63, UDMA(133)
> hdd: host protected area => 1
> hdd: 320173056 sectors (163929 MB) w/2048KiB Cache, CHS=19929/255/63, UDMA(133)
> PIIX3: IDE controller on PCI bus 00 dev 39
> PIIX3: chipset revision 0
> PIIX3: not 100% native mode: will probe irqs later
> ide2: BM-DMA at 0xffa0-0xffa7, BIOS settings: hde:DMA, hdf:DMA
> ide3: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdg:pio, hdh:pio
> hde: ATAPI 44X CDROM, ATAPI CD/DVD-ROM drive
> hdf: CREATIVEDVD5240E-1, ATAPI CD/DVD-ROM drive
> ide2 at 0x1f0-0x1f7,0x3f6 on irq 14
> hde: ATAPI 40X CD-ROM drive, 128kB Cache, (U)DMA
> Uniform CD-ROM driver Revision: 3.12
> hdf: ATAPI 32X DVD-ROM drive, 512kB Cache, DMA
> Partition check:
> /dev/ide/host0/bus0/target0/lun0: p1
> /dev/ide/host0/bus0/target1/lun0: p1
> /dev/ide/host0/bus1/target0/lun0: p1
> /dev/ide/host0/bus1/target1/lun0: p1
>
> If this is what you want, this is what I have to put on the table.
> If you do not I will delete the code.
>
> Regards,
>
> Andre Hedrick
> LAD Storage Consulting Group
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