10 Commits

Author SHA1 Message Date
Sepherosa Ziehau
a14df6ad64 hyperv: Remove useless channel inbound_lock
It serves no purpose.

Reviewed by:	Hongjiang Zhang <honzhan microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5450
2016-02-26 09:17:31 +00:00
Sepherosa Ziehau
9021e53b29 hyperv: Use atomic_fetchadd_int to get GPADL id.
Reviewed by:	Hongjiang Zhang <honzhan microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5439
2016-02-26 02:26:19 +00:00
Sepherosa Ziehau
f7d33dfef2 hyperv: Wait 5 seconds for hyperv result, instead of 500ms
This addresses various devices (network, stoarge) attach failure.

Reported by:	Hongxiong Xian <v-hoxian microsoft com>
Tested by:	Hongxiong Xian <v-hoxian microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5435
2016-02-25 09:27:50 +00:00
Sepherosa Ziehau
3fd8cd9ce4 hyperv: Use malloc for page allocation.
We will eventually convert them to use busdma.

Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	adrian, sephe, Dexuan Cui <decui microsoft com>
Approved by:	adrian (mentor)
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5087
2016-02-05 07:29:11 +00:00
Sepherosa Ziehau
0eff2e2ea1 hyperv/vmbus: Event handling code refactor.
- Use taskqueue instead of swi for event handling.
- Scan the interrupt flags in filter
- Disable ringbuffer interrupt mask in filter to ensure no unnecessary
  interrupts.

Submitted by:		Jun Su <junsu microsoft com>
Reviewed by:		adrian, sephe, Dexuan <decui microsoft com>
Approved by:		adrian (mentor)
MFC after:		2 weeks
Sponsored by:		Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D4920
2016-01-27 03:53:30 +00:00
Sepherosa Ziehau
51f6f18c88 hyperv/vmbus: Avoid extra copy of page information.
The page information array could contain up to 32 elements (i.e. 512B).
And on network side w/ TSO, 11+ (176B+) elements, i.e. ~44K TSO packet,
in the page information array is quite common.

This saves us some cpu cycles.

Reviewed by:		adrian, delphij
Approved by:		adrian (mentor)
Sponsored by:		Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D4992
2016-01-25 05:33:18 +00:00
Wei Hu
da2f98a1cf Microsoft vmbus, storage and other related driver enhancements for HyperV.
- Vmbus multi channel support.
    - Vector interrupt support.
    - Signal optimization.
    - Storvsc driver performance improvement.
    - Scatter and gather support for storvsc driver.
    - Minor bug fix for KVP driver.
Thanks royger, jhb and delphij from FreeBSD community for the reviews
and comments. Also thanks Hovy Xu from NetApp for the contributions to
the storvsc driver.

PR:     195238
Submitted by:   whu
Reviewed by:    royger, jhb, delphij
Approved by:    royger
MFC after:      2 weeks
Relnotes:       yes
Sponsored by:   Microsoft OSTC
2015-04-29 10:12:34 +00:00
Peter Grehan
ddc4c1e797 Fix vmbus channel memory leak where incorrect length parameter was
being passed to contigfree().

Submitted by:	Microsoft hyperv dev team
Approved by:	re@ (glebius)
2013-10-11 21:30:27 +00:00
Dimitry Andric
785e09b08f In sys/dev/hyperv, fix a number of gcc warnings about usage of anonymous
union members in strict C99, by giving them names.  While here, add some
FreeBSD keywords where they were missing.

Approved by:	re (gjb)
Reviewed by:	grehan
2013-10-10 16:25:53 +00:00
Peter Grehan
cc759c1995 Microsoft have changed their policy on how the hyper-v code will
be pulled into FreeBSD. From now, FreeBSD will be considered the
upstream repo.

First step: move the drivers away from the contrib area and into
the base system.

A follow-on commit will include the drivers in the amd64 GENERIC kernel.
2013-07-17 06:30:23 +00:00