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(parent: 62c4406) | patch
MFC r248704:
authormav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 24 Apr 2013 19:33:37 +0000 (19:33 +0000)
committermav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 24 Apr 2013 19:33:37 +0000 (19:33 +0000)
commit34ab71d5198b4075169173aa638f155abf170871
tree957755828b103644bb8b8fc45efa9b55324f0e6etree | snapshot
parent62c44064d67e9ac459a3c514346fa31087cd6141commit | diff
MFC r248704:
Read Asynchronous Notification statuses only if Port Multiplier or ATAPI
device are connected. ATA disks are not using ANs, while the extra register
read operation is quite expensive.

git-svn-id: svn://svn.freebsd.org/base/stable/9@249852 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/ahci/ahci.c diff | blob | history
9-STABLE