David Brownell wrote:
---
This is a new patch in series; it's too against the recent Linus' kernel...
The code is not exactly trivial but hopefully self-documented, it has been
successfulyl stress tested with CPPI 3.0 and 4.1 drivers, though still needs
verification with Inventra DMA...
This looks very interesting, but it looks a bit too complex to
consider acking for 2.6.29, given there's a trivial "use PIO"
workaround
... which means about 2x speed descrease with a Maxtor USB HDD I have
here, from 15 to 8 MB/s (measured with hdparm -t, w/CPPI 4.1 driver). Almost
no speed descrease on my flash drive but it's 4.5 year old Transcend and it
topped at a little more than 8 MB/s...
WBR, Sergei
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