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354 commits

Author SHA1 Message Date
Dexuan Cui
cdb316ee87 hyperv/vmbus,pcib: unbreak build in case NEW_PCIB is undefined 
vmbus_pcib requires NEW_PCIB, but in case that's not defined, we at
least shouldn't break build.

Reviewed by:	sephe
Approved by:	sephe (mentor)
MFC after:	3 days
Sponsored by:	Microsoft
 2016-11-25 04:35:40 +00:00
Sepherosa Ziehau
91955558f5 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
 2016-11-24 06:01:29 +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
713ff628ac hyperv/vmbus: Merge free/active locks. 
These functions are only used by management stuffs, so there are
no needs to introduce extra complexity.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8524
 2016-11-23 08:30:02 +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
Dexuan Cui
50182f1312 hyperv/vmbus,pcib: Add MODULE_DEPEND on pci 
We'd better add this dependency explicitly, though usually the pci
driver is built into the kernel by default.

Reviewed by:	sephe
Approved by:	sephe (mentor)
MFC after:	1 week
Sponsored by:	Microsoft
 2016-11-18 06:24:22 +00:00
Dexuan Cui
522c192d38 hyperv/vmbus: add new vmbus methods to support PCIe pass-through 
The new methods will be used by the coming pcib driver.

Reviewed by:	sephe
Approved by:	sephe (mentor)
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8409
 2016-11-16 09:08:32 +00:00
Dexuan Cui
c8b32f717d hyperv/vmbus: add a new method to get vcpu_id 
vcpu_id is host's representation of guest CPU.
We get the mapping between vcpu_id and FreeBSD kernel's cpu id when VMBus
driver is loaded. Later, when a driver, like the coming pcib driver, talks
to the host and needs to refer to a guest CPU, the driver must use the
vcpu_id.

Reviewed by:	jhb, sephe
Approved by:	sephe (mentor)
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8410
 2016-11-16 09:02:17 +00:00
Sepherosa Ziehau
afe30aa97f hyperv/vmbus: Reset ch_dev, once the child is deleted. 
So it will not be mis-used later on, e.g. in vmbus_chan_printf().

Submitted by:	dexuan
Reported by:	dexuan
MFC after:	1 week
Sponsored by:	Microsoft
 2016-11-04 01:14:41 +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
a457fab84c hyperv/vmbus: Avoid extra header copy. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8395
 2016-11-01 08:30:06 +00:00
Sepherosa Ziehau
eaaa9935d4 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
 2016-10-26 05:06:23 +00:00
Sepherosa Ziehau
91833b0f3c hyperv/vmbus: Add missing white space. 
Submitted by:	QianYue You <t-youqi microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft
 2016-10-26 04:26:17 +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
4e3e6410ad hyperv/vmbus: Add __FBSDID 
Sponsored by:	Microsoft
 2016-10-14 05:47:59 +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
9f06037b0d hyperv/vmbus: Add dynamic device add and remove support 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8008
 2016-09-27 06:30:24 +00:00
Sepherosa Ziehau
d1c1d97e6a hyperv/vmbus: Assert that the bufring address is page aligned. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7962
 2016-09-21 06:43:52 +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
67e44048f0 hyperv/vmbus: Make sure that the sub-channel count is valid. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7865
 2016-09-14 06:30:14 +00:00
Sepherosa Ziehau
19c8ea1086 hyperv/vmbus: Stringent header length and total length check. 
While I'm here, minor style changes.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7752
 2016-09-05 03:21:31 +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
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
6fd14eb940 hyperv/vmbus: Only make sure the TX bufring will not be closed. 
KVP can write data, whose size is > 1/2 TX bufring size.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7414
 2016-08-05 08:57:51 +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
c0c9089709 hyperv/vmbus: Revoke unnecessary exposure of vmbus softc 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7348
 2016-07-29 06:10:27 +00:00
Sepherosa Ziehau
fd42dfc550 hyperv/vmbus: Move driver glue to the beginning of the files 
Just as most of other drivers do.  And move sysinit function close
to its SYSINIT.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7347
 2016-07-29 05:58:24 +00:00
Sepherosa Ziehau
5b444edabc hyperv/vmbus: Forward declare static functions 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7346
 2016-07-29 05:49:12 +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
0bc135dffc hyperv/vmbus: Avoid unnecessary mb() 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7333
 2016-07-28 06:30:29 +00:00
Sepherosa Ziehau
dc831186e3 hyperv/vmbus: Rename cleaned up bufring code 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7318
 2016-07-27 09:27:08 +00:00
Sepherosa Ziehau
b5ddb4093a hyperv/vmbus: Cleanup RX bufring read process. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7317
 2016-07-27 07:36:54 +00:00
Sepherosa Ziehau
3ddfec1f17 hyperv/vmbus: Stringent RX bufring data length checks. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7316
 2016-07-27 07:19:06 +00:00
Sepherosa Ziehau
455cc95f3f hyperv/vmbus: Cleanup TX bufring write process. 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7315
 2016-07-27 06:52:43 +00:00
Sepherosa Ziehau
ca7c18e5c4 hyperv/vmbus: Update comment for bufring 
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7314
 2016-07-27 06:36:57 +00:00
Sepherosa Ziehau
ea06b5d3ec hyperv/vmbus: Use different struct for RX/TX bufring. 
So that they can use suitable MP synchronization mechanism.

While I'm here change the bufring init/read/write function names.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7313
 2016-07-27 06:17:20 +00:00
Sepherosa Ziehau
a0c3998ea9 hyperv/vmbus: Initialize RX/TX bufring mutex at channel creation time 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7312
 2016-07-27 05:47:32 +00:00
Sepherosa Ziehau
34c30e12e2 hyperv/vmbus: Nuke unnecessary accessor functions. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7303
 2016-07-26 05:06:00 +00:00
Sepherosa Ziehau
afffab7e8b hyperv/vmbus: Move bufring info definition to vmbus_brvar.h 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7282
 2016-07-25 03:30:26 +00:00
Sepherosa Ziehau
7dd8881ca6 hyperv/vmbus: Rename hv_vmbus_priv.h to vmbus_brvar.h 
It only contains bufring related bits for a while.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7281
 2016-07-25 03:12:40 +00:00
Sepherosa Ziehau
031e155216 hyperv/vmbus: Move vmbus bufring definition to vmbus_reg.h 
And add more comment about its fields.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7269
 2016-07-22 05:09:08 +00:00
Sepherosa Ziehau
bafad35c7d hyperv/vmbus: Cleanup and augment bufring sysctl tree creation 
Binary state node is added, so that userland programs do not have
to parse human readable state string.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7268
 2016-07-22 03:42:32 +00:00
Sepherosa Ziehau
a6c54e7eea hyperv/vmbus: Cosmetic bufring cleanup. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7267
 2016-07-22 03:30:00 +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
3fcf36f408 hyperv/vmbus: Reorder channel fields. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7258
 2016-07-21 05:38:05 +00:00
Sepherosa Ziehau
f617e011c9 hyperv/vmbus: Save event flag location and evet flag mask. 
This avoids unnecessary access to the vmbus_softc struct on sending path.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7257
 2016-07-21 05:30:31 +00:00
Sepherosa Ziehau
e90bb68be6 hyperv/vmbus: Save MNF trigger location instead of MNF trigger index. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7246
 2016-07-20 06:12:32 +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
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
e62409966b hyperv/vmbus: Rename laundered vmbus channel code 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7232
 2016-07-19 07:51:22 +00:00
Sepherosa Ziehau
d9687005ae hyperv/vmbus: Temp/internal variable/function rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7231
 2016-07-19 06:04:44 +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
d745ae11c9 hyperv/vmbus: Cleanup channel sysctl tree creation 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7214
 2016-07-15 08:40:22 +00:00
Sepherosa Ziehau
3ccc0ce030 hyperv/vmbus: Cosmetic vmbus channel close cleanup 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7213
 2016-07-15 08:31:53 +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
7bf5900964 hyperv/vmbus: Factor out macros to do channel packet length conversion. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7194
 2016-07-15 07:35:01 +00:00
Sepherosa Ziehau
a47c066339 hyperv/vmbus: Field rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7193
 2016-07-15 07:26:31 +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
4817a5a58d hyperv/vmbus: Cleanup channel sending 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7178
 2016-07-15 07:07:17 +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
Sepherosa Ziehau
66e132bd0f hyeprv/vmbus: Rework prplist sending. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7175
 2016-07-15 06:40:59 +00:00
Sepherosa Ziehau
6199f16549 hyperv/vmbus: Rework sglist sending. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7156
 2016-07-15 06:29:19 +00:00
Sepherosa Ziehau
d64ec3506d hyperv/vmbus: Redefine channel packet. 
The channel packet header will be shared w/ PRP (physical region page)
list channel packet and SG (scatter gather) list channel packet.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7155
 2016-07-15 06:16:39 +00:00
Sepherosa Ziehau
013c69bf17 hyperv/vmbus: Field rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7146
 2016-07-15 06:08:48 +00:00
Sepherosa Ziehau
23eaa43cc8 hyperv/vmbus: Set vcpuid to 0, if MSR_HV_VP_INDEX does not exist. 
Mainly for compatibility.  While I'm here, rename cpuid related
fields in hv_vmbus_channel.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7141
 2016-07-15 05:59:27 +00:00
Sepherosa Ziehau
29bf5462b5 hyperv/vmbus: Busdma-fy channel bufring. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7140
 2016-07-15 05:51:58 +00:00
Sepherosa Ziehau
9ab42c2138 hyperv/vmbus: Add vmbus_chan_gpadl_connect, which takes GPA physaddr 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7139
 2016-07-15 05:40:34 +00:00
Sepherosa Ziehau
b3a6435528 hyperv/vmbus: Use iovec for bufring scatter/gather list. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7134
 2016-07-15 05:29:04 +00:00
Sepherosa Ziehau
4ad849ba82 hyperv/vmbus: Remove unused function definition/declaration. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7131
 2016-07-15 05:15:21 +00:00
Sepherosa Ziehau
9ef6240130 hyperv/vmbus: Function rename 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7129
 2016-07-15 05:06:15 +00:00
Sepherosa Ziehau
1bb1ecfc00 hyperv/vmbus: Remove unused struct 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7127
 2016-07-15 04:54:07 +00:00
Sepherosa Ziehau
7d590c7345 hyperv/vmbus: Merge hv_channel_mgmt.c into hv_channel.c 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7126
 2016-07-15 04:42:08 +00:00
Sepherosa Ziehau
e11f3043cd hyperv/vmbus: Move bus related message processing into vmbus. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7125
 2016-07-14 08:40:59 +00:00
Sepherosa Ziehau
7e70f1cbaf hyperv/vmbus: Sub-channel related fields renaming 
And reorganize comment.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7113
 2016-07-14 08:15:13 +00:00
Sepherosa Ziehau
e480791797 hyperv/vmbus: Fix the racy channel close. 
It is not safe to iterate the sub-channel list w/o lock on the
close path, while it's even more difficult to hold the lock
and iterate the sub-channel list.  We leverage the
vmbua_{get,rel}_subchan() functions to solve this dilemma.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7112
 2016-07-14 07:59:01 +00:00
Sepherosa Ziehau
c1bea00ed1 hyperv/vmbus: Field renaming to reflect reality 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7111
 2016-07-14 07:48:26 +00:00
Sepherosa Ziehau
77321df6e4 hyperv/vmbus: Release vmbus channel lock before detach devices 
Device detach method may sleep.

While I'm here, rename the function, fix indentation and function
comment.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7110
 2016-07-14 07:39:34 +00:00
Sepherosa Ziehau
4cf4f2248e hyperv/vmbus: Only add primary channels to vmbus channel list 
- Make the vmbus_chan_add more straightforward.
- Partially fix the hv_vmbus_release_unattached_channels().

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7109
 2016-07-14 07:31:43 +00:00
Sepherosa Ziehau
3a1079321c hyperv/vmbus: Use sub-channel index to detect primary channel 
In case that VMBUS_CHAN_ISPRIMARY is needed in the early place of
channel setup.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7108
 2016-07-14 07:24:03 +00:00
Sepherosa Ziehau
ea505e3821 hyperv/vmbus: Cleanup vmbus_chan_add() 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7106
 2016-07-14 07:08:59 +00:00
Sepherosa Ziehau
8c1ac91660 hyperv/vmbus: Nuke the channel open state. 
Channel is either opened or not-opened.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7105
 2016-07-14 06:59:04 +00:00
Sepherosa Ziehau
0b1e5b0fd0 hyperv/vmbus: Cleanup vmbus_chan_msgproc_choffer 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7104
 2016-07-14 06:48:24 +00:00
Sepherosa Ziehau
dab4260c90 hyperv/vmbus: Move new channel scan notification to device register 
And nuke now unnecessary function indirection.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7103
 2016-07-14 06:40:42 +00:00
Sepherosa Ziehau
245903228c hyperv/vmbus: Move device register and channel free to the caller. 
This paves the way for more cleanup/disentangle.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7102
 2016-07-14 06:29:12 +00:00