svn commit: r189367 - head/sys/dev/pci

[Robert Noland]

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.

> Warner
-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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