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authorTejun Heo <htejun@gmail.com>2008-05-19 01:15:13 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-05-19 17:51:48 -0400
commit906c1ff44a81aaad96a9feb40ea13d73bbf3662a (patch)
tree20a9f5bd6ae04853aba2ab2f68d94134c6bea450 /drivers/infiniband
parent391191c116c088edc6794a6e5ace10a13928c2f6 (diff)
downloadop-kernel-dev-906c1ff44a81aaad96a9feb40ea13d73bbf3662a.zip
op-kernel-dev-906c1ff44a81aaad96a9feb40ea13d73bbf3662a.tar.gz
sata_sil24: don't use NCQ if marvell 4140 PMP is attached
When 4140 PMP is attached to sil24, NCQ commands to fan out port 1 and 2 (0 based) often stall if commands are in progress to other ports. I've tried a number of things but can't tell what's going on. It never happens w/ ahci and reportedly sata_mv which can issue NCQ commands to multiple devices simultaneously like sil24 does. Disable NCQ for devices behind 4140 PMP for the time being. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Mark Lord <liml@rtr.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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