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108 Commits

Author SHA1 Message Date
Pedro F. Giffuni
718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
 2017-11-27 14:52:40 +00:00
Sepherosa Ziehau
6bf331af5d hyperv/vmbus: Expose Hyper-V major version. 
MFC after:	3 days
Sponsored by:	Microsoft
 2017-10-10 08:23:19 +00:00
Sepherosa Ziehau
93b4e111bb hyperv: Update copyright for the files changed in 2017 
MFC after:	3 days
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D11982
 2017-08-14 06:00:50 +00:00
Sepherosa Ziehau
227bb849d3 hyperv: Add method to read 64bit Hyper-V specific time value. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D9057
 2017-01-09 03:38:41 +00:00
Sepherosa Ziehau
9622c93ae8 hyperv: Allow userland to ro-mmap reference TSC page 
This paves way to implement VDSO for the enlightened time counter.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8768
 2016-12-15 03:32:24 +00:00
Sepherosa Ziehau
de69dfbbbc hyperv: Implement "enlightened" time counter, which is rdtsc based. 
Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8763
 2016-12-14 03:20:57 +00:00
Sepherosa Ziehau
b99113a1c1 hyperv/vmbus: Add channel polling support. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8738
 2016-12-12 05:04:55 +00:00
Sepherosa Ziehau
096d83feb9 hyperv/timesync: Support "sent TC" to improve accuracy. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8723
 2016-12-08 05:37:39 +00:00
Sepherosa Ziehau
1b34e69534 hyperv/vmbus: Add result polling support for xact API. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8633
 2016-11-28 07:27:08 +00:00
Sepherosa Ziehau
a54152eaa5 hyperv/vmbus: Add supportive transaction wait function. 
This function supports channel revocation properly.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8611
 2016-11-28 05:07:48 +00:00
Sepherosa Ziehau
2641e75742 hyperv/vmbus: Add a simplified version of channel close. 
So that the caller can know the channel close error and react accordingly.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8600
 2016-11-25 09:13:10 +00:00
Sepherosa Ziehau
32ab625a61 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
 2016-11-25 07:24:11 +00:00
Sepherosa Ziehau
5ab84aaf2f 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
 2016-11-24 05:18:45 +00:00
Sepherosa Ziehau
494ec41ae2 hyperv/vmbus: Implement orphan support for transaction API 
It will be used to fix the primary channel revocation support.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8525
 2016-11-24 04:58:13 +00:00
Sepherosa Ziehau
fb6216bd43 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
 2016-11-23 05:03:44 +00:00
Sepherosa Ziehau
8f3bf5f97b hyperv/vmbus: Support transction result busy-wait. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8488
 2016-11-21 05:09:43 +00:00
Sepherosa Ziehau
2a5a7ca81d hyperv: GC unused functions. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8406
 2016-11-02 05:41:23 +00:00
Sepherosa Ziehau
e41136c060 hyperv/vmbus: Expose channel management taskqueue for driver to use. 
MFC after:	3 days
Sponsored by:	Microsoft
 2016-10-19 09:12:14 +00:00
Sepherosa Ziehau
cca23e7c3c 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
 2016-10-11 02:43:23 +00:00
Sepherosa Ziehau
c8e8d13398 hyperv/vmbus: Add function to drain channel interrupt task. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8045
 2016-09-28 04:25:25 +00:00
Sepherosa Ziehau
e8223cc6cf hyperv/vmbus: Add functions to test RX/TX bufring emptiness 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8044
 2016-09-28 04:08:20 +00:00
Sepherosa Ziehau
9613ad24b0 hyperv/vmbus: Allow bufrings preallocation. 
The assumption that the channel is only opened upon synthetic device
attach time no longer holds, e.g. Hyper-V network device MTU changes.
We have to allow device drivers to preallocate bufrings, e.g. in
attach DEVMETHOD, to prevent bufring allocation failure once the
system memory is fragmented after running for a while.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7960
 2016-09-21 05:56:47 +00:00
Sepherosa Ziehau
dd9af4103b hyperv/vmbus: Add function to calculate max # of elements in a bufring. 
MFC after:	1 week
Sponsored by:	Microsoft
 2016-08-25 05:35:51 +00:00
Sepherosa Ziehau
5ac4acb202 hyperv/hn: Factor out hn_nvs_send/hn_nvs_send_sglist 
Avoid unnecessary message type setting and centralize the send context
to transaction id cast.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7500
 2016-08-16 07:26:53 +00:00
Sepherosa Ziehau
3dba61dd3c hyperv/vmbus: Use xact APIs to implement post message Hypercall APIs 
Avoid code duplication.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7458
 2016-08-11 06:24:17 +00:00
Sepherosa Ziehau
6212aa15fc hyperv/vmbus: Add APIs for various types of transactions. 
Reviewed by:	Jun Su <junsu microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7456
 2016-08-11 05:49:49 +00:00
Sepherosa Ziehau
99fc691eec hyperv/vmbus: Add macro to get channel packet data length. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7455
 2016-08-11 03:20:38 +00:00
Sepherosa Ziehau
9d6016a773 hyperv/vmbus: Remove the artificial entry limit of SG and PRP list. 
Just make sure that the total channel packet size does not exceed 1/2
data size of the TX bufring.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7359
 2016-08-01 04:26:24 +00:00
Sepherosa Ziehau
8018156f90 hyperv/vmbus: Reindent function declarations. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7344
 2016-07-29 03:16:51 +00:00
Sepherosa Ziehau
7d8ee480c4 hyperv/vmbus: Inclusion cleanup 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7334
 2016-07-28 06:46:10 +00:00
Sepherosa Ziehau
82b8a87964 hyperv: hv_vmbus_channel -> vmbus_channel 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7260
 2016-07-21 06:09:47 +00:00
Sepherosa Ziehau
f62b3ae3be hyperv/vmbus: Shuffle function declaration and macro definition. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7259
 2016-07-21 05:46:26 +00:00
Sepherosa Ziehau
6254947245 hyperv/vmbus: Hide channel struct definition. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7245
 2016-07-20 06:00:27 +00:00
Sepherosa Ziehau
fda1c6ee42 hyperv/vmbus: Deprecate the device private data in channel struct 
They are neither flexible nor extensible.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7244
 2016-07-20 05:48:52 +00:00
Sepherosa Ziehau
ca871fb75c hyperv/vmbus: Pass channel as the first argument for channel callback 
The prepares to kill device private fields in channel struct, which
are not flexible and extensible.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7243
 2016-07-20 05:34:28 +00:00
Sepherosa Ziehau
9129ad2d70 hyperv/vmbus: Channel struct field rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7242
 2016-07-20 05:26:04 +00:00
Sepherosa Ziehau
4cd995ff5d hyperv/vmbus: Move IC register definition to Hyper-V utilities 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7241
 2016-07-20 05:16:23 +00:00
Sepherosa Ziehau
267fb25f21 hyperv/vmbus: Get rid of unnecessary definition. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7240
 2016-07-20 05:03:04 +00:00
Sepherosa Ziehau
e93854c495 hyperv/vmbus: Function rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7230
 2016-07-19 05:57:19 +00:00
Sepherosa Ziehau
742fb4f669 hyperv/vmbus: Cleanup cpu based channel selection. 
And create cpu to channel map at device attach time for storvsc(4).

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7229
 2016-07-19 05:46:15 +00:00
Sepherosa Ziehau
367d703632 hyperv/vmbus: Cosmetic vmbus channel open cleanup 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7217
 2016-07-18 05:36:31 +00:00
Sepherosa Ziehau
d0856980e4 hyperv/vmbus: Function rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7212
 2016-07-15 08:23:33 +00:00
Sepherosa Ziehau
a91e5fd55f hyperv/vmbus: Back out r302888 temporarily 
Committed by accident w/ duplicated commit log

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-07-15 08:13:44 +00:00
Sepherosa Ziehau
047affd165 hyperv/hn: Busdma-fy rxbuf and chimney sending buffer 
Nuke unused channel GPADL API.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7211
 2016-07-15 08:08:13 +00:00
Sepherosa Ziehau
8c209c9206 hyperv/hn: Busdma-fy rxbuf and chimney sending buffer 
Nuke unused channel GPADL API.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7211
 2016-07-15 08:06:48 +00:00
Sepherosa Ziehau
43bbe6b27f hyperv/vmbus: Cleanup channel packet receiving. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7204
 2016-07-15 07:53:45 +00:00
Sepherosa Ziehau
7c55724859 hyperv/vmbus: Cleanup channel receiving. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7202
 2016-07-15 07:45:30 +00:00
Sepherosa Ziehau
12140675e8 hyperv/vmbus: Function rename 
And reorder the error prone parameters list.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7191
 2016-07-15 07:16:46 +00:00
Sepherosa Ziehau
03055a2cea hyperv/vmbus: Move channel packet types definition to vmbus.h 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7177
 2016-07-15 06:58:21 +00:00
Sepherosa Ziehau
1680fb300c hyperv/vmbus: Move channel packet flags definition to vmbus.h 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7176
 2016-07-15 06:49:45 +00:00