Date: Fri, 20 May 2011 18:27:13 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/vge if_vge.c Message-ID: <201105201827.p4KIRRfZ032190@repoman.freebsd.org>
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yongari 2011-05-20 18:27:13 UTC
FreeBSD src repository
Modified files:
sys/dev/vge if_vge.c
Log:
SVN rev 222142 on 2011-05-20 18:27:13Z by yongari
Datasheet says vge(4) controllers support DAC but it seems that's
not true on old PCI based controllers. DAC configuration is read
from EEPROM in device reset phase and driver can override DAC
configuration. However I guess there is an undocumented reason why
EEPROM configuration does not enable DAC so do not blindly override
DAC configuration. Recent PCIe based controllers are supposed to
support 64bit DMA so allow 64bit DMA only on PCIe based controllers.
PR: kern/157184
MFC after: 1 week
Revision Changes Path
1.75 +17 -2 src/sys/dev/vge/if_vge.c
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