MFC 302617-302621,302623,302629-302631

MFC 302617-302621,302623,302629-302631

302617
    hyperv/vmbus: Flatten channel message response processing.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6914

302618
    hyperv/vmbus: Avoid tx_evtflags setting code duplication.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6915

302619
    hyperv/vmbus: Busdma-fy Hypercall signal event input parameter.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6916

302620
    hyperv: Nuke unused stuffs

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6917

302621
    hyperv/vmbus: Don't be oversmart in default cpu selection.

    Pin the channel to cpu0 by default.  Drivers having special channel-cpu
    mapping requirement should call vmbus_channel_cpu_{set,rr}() themselves.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6918

302623
    hyperv/vmbus: Minor renaming

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6919

302629
    hyperv/vmbus: Rework vmbus version accessing.

    Instead of global variable, vmbus version is accessed through
    a vmbus DEVMETHOD now.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6953

302630
    hyperv/vmbus: Move GPADL index into vmbus_softc

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6954

302631
    hyperv/vmbus: Move channel list to vmbus_softc

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D6956

git-svn-id: svn://svn.freebsd.org/base/stable/10@307018 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f