On Tue, 28 Feb 2006, Alan Cox wrote:
On Llu, 2006-02-27 at 23:16 -0500, Mark Lord wrote:
Or maybe a whitelist instead, since nearly all existing hardware
pre-dates FUA commands.
For controllers just add it as a host flag and it can be handled the
same way as LBA48 is right now. It may also be some hosts can issue FUA
with a bit of bandaging (state machine resets/pio etc)
Alan
While I have not yet been able to reproduce the problem with the verbose
patch, here is the hdparm -I:
/dev/sdc:
ATA device, with non-removable media
Model Number: WDC WD4000KD-00NAB0
Serial Number: WD-WMAMY1020930
Firmware Revision: 01.06A01
Standards:
Supported: 7 6 5 4
Likely used: 7
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 781422768
device size with M = 1024*1024: 381554 MBytes
device size with M = 1000*1000: 400088 MBytes (400 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, with device specific
minimum
R/W multiple sector transfer: Max = 16 Current = 0
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
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:
* NOP cmd
* 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
* General Purpose Logging feature set
* SMART self-test
* SMART error logging
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
Checksum: correct
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