Robert Hancock wrote:
On 07/29/2009 05:39 PM, Mark Lord wrote:
Mark Lord wrote:
hdparm-9.17 is now available from sourceforge.net.
New in this release:
- added wiper/ subdirectory with preliminary SSD-wiper (TRIM)
..
Tejun: on a related note, my Sil-3132 PCIe SATA controller doesn't
seem to like DSM/TRIM commands passing through it.
[ 3479.010001] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
frozen
[ 3479.010008] ata4.00: irq_stat 0x00020002, protocol mismatch
[ 3479.010019] ata4.00: cmd 06/01:01:00:00:00/00:00:00:00:00/e0 tag 0
dma 512 out
[ 3479.010021] res dc/33:00:00:00:00/00:00:00:00:dc/00 Emask 0x2 (HSM
violation)
[ 3479.010025] ata4.00: status: { Busy }
[ 3479.010029] ata4.00: error: { IDNF }
[ 3479.010041] ata4: hard resetting link
[ 3481.193102] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[ 3481.197043] ata4.00: configured for UDMA/100
[ 3481.197082] ata4: EH complete
I haven't taken time to dig further yet, but perhaps somebody here
might know if they've hardcoded all of the ATA opcodes in silicon or
something, and now get confused by DSM/TRIM ?
I'll dig further into that later this summer.
Yeah, according to the datasheet "The SiI3124 will decode the 8-bit ATA
command at PRB offset 0x0a and automatically execute the default
protocol for the command. In certain cases it might be desirable to
specify a non-default protocol to be used, such as with vendor specific
device commands." The DSM command seems to be DMA data-out and the chip
likely doesn't know that command. I have to wonder why they decided to
use that design instead of just making the driver indicate the protocol
explicitly. In any case, it looks like the driver needs code to override
the protocol setting for this command. (Maybe we should just set the
protocol override for what we know the command is supposed to be in all
cases?)
..
If you can puzzle out how to do that, and post a quick(?) patch,
it would certainly make testing SSDs easier for me here.
I would like to use the Sil3124 ExpressCard controller with my notebook
for this stuff, rather than having to power up one of the noisy
full-size systems under the table. ;)
On a related note.. anyone else out there have access to a TRIM-capable
SSD yet? If you do, you probably are under NDA, but that shouldn't stop
you from at least trying out the scripts in the hdparm package and
letting me know how things go.. in a very non vendor/model specific fashion. :)
Thanks
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