Date: Tue, 19 Apr 2011 20:38:50 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/ahci ahci.c ahci.h Message-ID: <201104192038.p3JKcw5u059798@repoman.freebsd.org>
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mav 2011-04-19 20:38:50 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/dev/ahci ahci.c ahci.h
Log:
SVN rev 220868 on 2011-04-19 20:38:50Z by mav
MFC r220657:
Some changes around hot-plug and interface power-management:
- use ATA_SE_EXCHANGED (SError.DIAG.X) bit to detect hot-plug events when
power-management enabled and ATA_SE_PHY_CHANGED (SError.DIAG.N) can't be
trusted;
- on controllers supporting staggered spin-up (SS) put unused channels
into Listen state instead of Off. It should still save some power, but
allow plug-in events to be detected;
- on controllers supporting cold presence detection (CPD), when power
management enabled, use CPD events to detect hot-plug in addition to PHY
events.
Revision Changes Path
1.1.2.53 +62 -14 src/sys/dev/ahci/ahci.c
1.1.2.14 +3 -1 src/sys/dev/ahci/ahci.h
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