svn commit: r343688 - head/sys/dev/vmware/vmxnet3

[Patrick Kelsey]

On Sat, Feb 2, 2019 at 7:27 PM Enji Cooper <yaneurabeya at gmail.com> wrote:

> Hi Patrick,
>
> On Feb 2, 2019, at 13:14, Patrick Kelsey <pkelsey at freebsd.org> wrote:
>
> Author: pkelsey
> Date: Sat Feb  2 21:14:53 2019
> New Revision: 343688
> URL: https://svnweb.freebsd.org/changeset/base/343688
>
> Log:
>  Fix interrupt index configuratoin when using MSI interrupts.
>
>  When in MSI mode, the device was only being configured with one
>  interrupt index, but it needs two - one for the actual interrupt and
>  one to park the tx queue at.
>
>  Also clarified comments relating to interrupt index assignment.
>
>  Reported by:    Yuri Pankov <yuripv at yuripv.net>
>  MFC after:    1 day
>
>
> Does this change partly fix
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203874 ?
>

No, this fixes the behavior of the iflib version of the vmx(4) driver when
that bug causes its interrupt configuration code to fall into the MSI path
(because MSI-X has been blacklisted).

-Patrick