svn commit: r189367 - head/sys/dev/pci
rnoland at FreeBSD.org
Wed Mar 4 18:03:06 PST 2009
On Wed, 2009-03-04 at 13:56 -0700, M. Warner Losh wrote:
> In message: <200903041823.n24INmcc049524 at svn.freebsd.org>
> Robert Noland <rnoland at freebsd.org> writes:
> : Author: rnoland
> : Date: Wed Mar 4 18:23:48 2009
> : New Revision: 189367
> : URL: http://svn.freebsd.org/changeset/base/189367
> : Log:
> : Extend the management of PCIM_CMD_INTxDIS.
> : We now explicitly enable INTx during bus_setup_intr() if it is needed.
> : Several of the ata drivers were managing this bit internally. This is
> : better handled in pci and it should work for all drivers now.
> : We also mask INTx during bus_teardown_intr() by setting this bit.
> : Reviewed by: jhb
> : MFC after: 3 days
> Note: the INTxDIS bit is new in PCI 3.0, and has no effect on earlier
> devices. This should be highlighted in the comments somewhere...
It is documented in 2.3 as well, I'm not sure about previous versions of
the spec though.
Robert Noland <rnoland at FreeBSD.org>
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