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* [9fans] marvell/highpoint ahci
@ 2010-09-16  3:06 erik quanstrom
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From: erik quanstrom @ 2010-09-16  3:06 UTC (permalink / raw)
  To: 9fans

i just pushed out some minor changes to contrib quanstro/sd
that add support for marvell/highpoint ahci.  it's not clear
that 6.0gbps operation is properly supported, as i don't have
a sata iii hard drive yet.  performance about half that of the
native controller.  there seems to be a large command-issue
latency as even with a fairly good ssd, i can only push about
15000 512-byte iops.  the native ahci (3.0gbps) controller can
do over 40000.

the card i have presents a single-port ide controller, which
is currently ignored since there is no pata connector, and is
thus difficult to test.

- erik



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