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MFC r285020: Disable port multiplier support on Marvell 88SE61xx chips.
authormav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Sat, 22 Aug 2015 15:36:20 +0000 (15:36 +0000)
committermav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Sat, 22 Aug 2015 15:36:20 +0000 (15:36 +0000)
commit685ce8c80d34f176f8b799f6180491312ec8992a
treef6ab9464627a37a66c9c65b12c0fb5dfd87c0f6dtree | snapshot
parentd9b58a3745b31691659ab80ac1a39f0c2547c28dcommit | diff
MFC r285020: Disable port multiplier support on Marvell 88SE61xx chips.

According to report, some recent unrelated changes in the driver triggered
timeouts when testing for absent port multiplier.  Cause of this behavior
channge is unclear, but since these chips are old, rare and buggy, it is
easier to just disable port multiplier support, same as done in Linux.

git-svn-id: svn://svn.freebsd.org/base/stable/10@287024 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/ahci/ahci_pci.c diff | blob | history
10-STABLE