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IDE? IDE-TNG driver

DISCUSSION David Balazic 1 participant 1 message Aug 26, 2002

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David Balazic

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Quoted 7 lines · Andre Hedrick

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

Quoted 54 lines

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