Vincenzo Maffione 17e9052ca8 bhyve: virtio: introduce vq_kick_enable() and vq_kick_disable()
The VirtIO standard supports two schemes for notification suppression:
a notification enable bit and a more sophisticated one (event_idx) that
also supports delayed notifications. Currently bhyve fully supports
only the first scheme. This patch hides the notification suppression
internals by means of two inline routines, vq_kick_enable() and
vq_kick_disable(), and makes the code more readable.
Moreover, further improve readability by replacing the call to mb()
with a call to atomic_thread_fence_seq_cst(), which is already used
in virtio.c

Reviewed by:	pmooney_pfmooney.com, bryanv
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20581
2019-06-11 15:52:41 +00:00
..
2019-03-29 20:21:28 +00:00
2017-10-31 00:07:04 +00:00
2017-10-31 00:07:04 +00:00
2018-08-11 13:23:09 +00:00
2018-12-19 21:56:54 +00:00
2019-04-02 12:50:01 +00:00
2019-06-09 02:06:31 +00:00
2019-03-14 14:34:36 +00:00
2018-08-19 07:12:35 +00:00
2018-11-30 19:40:16 +00:00
2019-02-05 21:37:34 +00:00
2019-02-04 21:28:25 +00:00
2018-06-06 18:52:33 +00:00
2019-02-21 01:30:37 +00:00
2018-08-12 13:29:40 +00:00
2018-05-28 09:41:44 +00:00
2017-12-28 05:34:04 +00:00
2019-05-04 02:09:30 +00:00
2018-01-02 16:50:57 +00:00
2017-10-31 00:07:04 +00:00
2018-10-22 02:34:10 +00:00
2018-02-23 17:20:53 +00:00
2018-05-19 20:57:22 +00:00
2019-05-22 01:22:33 +00:00
2019-02-04 21:28:25 +00:00
2019-02-04 21:28:25 +00:00
2018-09-19 07:09:55 +00:00
2018-06-17 17:31:16 +00:00
2019-02-03 08:15:26 +00:00
2018-03-19 05:49:26 +00:00
2019-03-05 02:53:41 +00:00
2019-04-22 17:52:46 +00:00
2018-12-19 22:47:37 +00:00
2019-04-23 03:52:43 +00:00
2018-02-08 14:53:34 +00:00
2017-10-31 00:07:04 +00:00
2019-05-24 05:34:21 +00:00
2019-05-24 05:34:21 +00:00
2018-07-24 20:20:17 +00:00