hyperv/vmbus: Return EISCONN if the bufring GPADL can't be disconnected.

So that the callers of vmbus_chan_open_br() could handle the passed in
bufring memory properly.

MFC after: 1 week
Sponsored

hyperv/vmbus: Return EISCONN if the bufring GPADL can't be disconnected.

So that the callers of vmbus_chan_open_br() could handle the passed in
bufring memory properly.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8569

show more ...

hyperv/vmbus: No stranded bufring GPADL is allowed.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8568

hyperv/vmbus: GPADL disconnect error on a revoked channel is benign.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8567

hyperv/vmbus: Don't close unopened channels.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8566

hyperv/vmbus: Fix sysctl tree leakage, if channel open fails.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8565

hyperv/vmbus: Minor style changes.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8564

hyperv/vmbus: Commit the GPADL id only after the connection succeeds.

Minor style change.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8563

Merge ^/head r308870 through r309105.

hyperv/vmbus: Fix the multi-channel revoking on vmbus side.

- Reference count the sub-channel when channel offer message is
processed, so that immediate rescind message on the same channel
will

hyperv/vmbus: Fix the multi-channel revoking on vmbus side.

- Reference count the sub-channel when channel offer message is
processed, so that immediate rescind message on the same channel
will not race sub-channel open on driver side.
- Drop the above reference when sub-channel is closed, this closely
mimics the hypervisor's reaction when primary channel is closed
on the VM side. No drivers use sub-channel after primary channel
is closed.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8546

show more ...

hyperv/vmbus: Fix the primary channel revoking on vmbus side.

Drivers can now use vmbus_chan_{is_revoked,set_orphan,unset_orphan}() and
vmbus_xact_ctx_orphan() to fix their attach/detach DEVMETHODs

hyperv/vmbus: Fix the primary channel revoking on vmbus side.

Drivers can now use vmbus_chan_{is_revoked,set_orphan,unset_orphan}() and
vmbus_xact_ctx_orphan() to fix their attach/detach DEVMETHODs for revoked
primary channels.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8545

show more ...

hyperv/vmbus: Set a mark on the revoked channel.

This will be used to fix device detach DEVMETHOD for revoked primary
channel.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https

hyperv/vmbus: Set a mark on the revoked channel.

This will be used to fix device detach DEVMETHOD for revoked primary
channel.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8522

show more ...

Merge ^/head r303250 through r308226.

hyperv: GC unused functions.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8406

hyperv/vmbus: Avoid extra header copy.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8395

Merge ^/head r307736 through r308146.

hyperv/vmbus: Implement vmbus_chan_printf.

And use it for vmbus channel logging, which can log the channel
owner's name properly, instead of vmbus0.

Submitted by: QianYue You <t-youqi microsoft com

hyperv/vmbus: Implement vmbus_chan_printf.

And use it for vmbus channel logging, which can log the channel
owner's name properly, instead of vmbus0.

Submitted by: QianYue You <t-youqi microsoft com>
MFC after: 1 week
Sponsored by: Microsoft

show more ...

Merge ^/head r307383 through r307735.

hyperv/vmbus: Expose channel management taskqueue for driver to use.

MFC after: 3 days
Sponsored by: Microsoft

Merge ^/head r306906 through r307382.

hyperv/vmbus: Allow driver to inject synchronous task into channel taskq.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8208

Merge ^/head r306303 through 306411.

hyperv/vmbus: Add function to drain channel interrupt task.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8045

hyperv/vmbus: Add functions to test RX/TX bufring emptiness

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8044

hyperv/vmbus: Add dynamic device add and remove support

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8008

Merge ^/head r305892 through r306302.