Q: IDE->SATA adaptor

[Eyal Lebedinsky <eyal@eyal.emu.id.au>]

I am still looking for a working setup for adding more SATA
disks to my machine. I acquired a small PCB that plugs into
the IDE socket on the mobo and provides two SATA sockets.

It worked out of the box, except that it only does udma2. Not
what I want.

If I try to set it to a higher mode I get the message
	hdc: Speed warnings UDMA 3/4/5 is not functional.

After some digging into the ide code I identified the problem
as 'id->hw_config' being zero. In two places it is checked
before allowing higher udma modes. One bit seems to be related
to the 80c (which has no meaning here and should probably
be hardwired on the board) and the other I am not sure.

I patched ide-iops.c to not check hw_config in the two funcs
where it does so:
	eighty_ninty_three
	ide_ata66_check


BTW my .config says:
	CONFIG_BLK_DEV_IDEDMA=y
	CONFIG_IDEDMA_IVB=y
	CONFIG_IDEDMA_AUTO=y

but the IVB is not enough here.


Does anyone know what is the correct way to get this adapter going without
a patch?


I should say that the disks do identify themselves correctly (see below)
but the kernel only accept some modes:

# hdparm -i /dev/hdc
  ==================
/dev/hdc:

 Model=WDC WD3200JD-00KLB0, FwRev=08.05J08, SerialNo=WD-WCAMR1427570
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: device does not report version:

 * signifies the current active mode


# hdparm -I /dev/hdc
  ==================
/dev/hdc:

ATA device, with non-removable media
        Model Number:       WDC WD3200JD-00KLB0
        Serial Number:      WD-WCAMR1427570
        Firmware Revision:  08.05J08
Standards:
        Supported: 6 5 4 3
        Likely used: 6
Configuration:
        Logical         max     current
        cylinders       16383   65535
        heads           16      1
        sectors/track   63      63
        --
        CHS current addressable sectors:    4128705
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors:  625142448
        device size with M = 1024*1024:      305245 MBytes
        device size with M = 1000*1000:      320072 MBytes (320 GB)
Capabilities:
        LBA, IORDY(can be disabled)
        bytes avail on r/w long: 4      Queue depth: 1
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    READ BUFFER cmd
           *    WRITE BUFFER cmd
           *    Host Protected Area feature set
           *    Look-ahead
           *    Write cache
           *    Power Management feature set
                Security Mode feature set
                SMART feature set
           *    FLUSH CACHE EXT command
           *    Mandatory FLUSH CACHE command
           *    Device Configuration Overlay feature set
           *    48-bit Address feature set
                Automatic Acoustic Management feature set
                SET MAX security extension
           *    DOWNLOAD MICROCODE cmd
           *    SMART self-test
           *    SMART error logging
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
        not     supported: enhanced erase
Checksum: correct

-- 
Eyal Lebedinsky (eyal@eyal.emu.id.au) <http://samba.org/eyal/>
	attach .zip as .dat