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194 Commits

Author SHA1 Message Date
Sepherosa Ziehau
0fbe6eaef6 hyperv/hn: Add stat for # of chimney sending tries 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-27 06:49:16 +00:00
Sepherosa Ziehau
677d0d5076 hyperv/vmbus: Mark sysctls MPSAFE 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-27 05:45:14 +00:00
Sepherosa Ziehau
b649be4068 hyperv/hn: Mark sysctls MPSAFE 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-27 05:18:04 +00:00
Sepherosa Ziehau
6456e1587b hyperv/hn: Remove unapplied comment. 
Chimney sending buffers are shared across channels.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-27 05:05:54 +00:00
Sepherosa Ziehau
ff1c886a59 hyperv/hn: Restart sending earlier once we gathered some free TX descs 
This greatly reduces the oqdrops under heavy workload.

For TCP send/recv test (10K concurrent connections):
oqdrops is reduced by 17% on sending side, and 57% on receiving side.

For nginx-1.8/wrk-4 1KB object test (10K concurrent connections,
4 requests/connection):
oqdrops is reduced by 44% on nginx side, and 10% on wrk side.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-27 04:51:28 +00:00
Sepherosa Ziehau
49bebba7aa hyperv/hn: Change description to "Hyper-V Network Interface" 
This is consistent w/ other Hyper-V devices.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 06:50:41 +00:00
Sepherosa Ziehau
f494006fdf hyperv/stor: Set description properly in probe devmethod 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 06:41:36 +00:00
Sepherosa Ziehau
96a8c456f1 hyperv/channel: Git rid of the sub-channel creation callback 
It is no longer used.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 05:21:27 +00:00
Sepherosa Ziehau
99b476b1e8 hyperv/stor: Avoid sub-channel creation callback. 
Since the sub-channel offers are synchronized, we can do our own
channel setup without using the sub-channel creation callback.

This paves the way to whack the sub-channel creation callback.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 05:15:15 +00:00
Sepherosa Ziehau
03dbe733c5 hyperv/hn: Avoid sub-channel creation callback. 
Since the sub-channel offers are synchronized, we can do our own
channel setup without using the sub-channel creation callback.

This paves the way to whack the sub-channel creation callback.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 05:08:55 +00:00
Sepherosa Ziehau
232ab086dc hyperv/stor: Synchronize sub-channel offers 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 05:00:40 +00:00
Sepherosa Ziehau
f4ffb60d10 hyperv/stor: Remove the useless hs_open_multi_channel 
This fixes the sub-channel offer race after Hyper-V device probe/attach
is moved to vmbus SYSINIT/attach.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-26 04:48:57 +00:00
Sepherosa Ziehau
049efd1090 hyperv/hn: Synchronize sub-channel offers 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 10:16:07 +00:00
Sepherosa Ziehau
480805ab13 hyperv/channel: Add functions to synchronize sub-channel offers 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 09:00:06 +00:00
Sepherosa Ziehau
b9dfafffcd hyperv/channel: Log a warning about duplicated primary channel offer 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 05:58:32 +00:00
Sepherosa Ziehau
d4135e865c hyperv/channel: Remove unapplied comment 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 05:46:44 +00:00
Sepherosa Ziehau
a37ec104c5 hyperv/channel: Minor style changes; no functional changes. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 05:30:42 +00:00
Sepherosa Ziehau
84e83c0abd hyperv/channel: Remove the unnecessary 'new' flag 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 05:22:35 +00:00
Sepherosa Ziehau
625dc68a9e hyperv/et: Strip extra white space in function name 
Reported by:	Sascha Wildner <saw online de>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 04:58:14 +00:00
Sepherosa Ziehau
4e0c3dc461 hyperv/hn: Allow users to configure ifq or bufring depth. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 03:48:28 +00:00
Sepherosa Ziehau
62cffb8d93 hn: Increase odrops for if_transmit method if drbr_enqueue fails. 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-25 03:14:55 +00:00
Sepherosa Ziehau
d1c801bbf1 hyperv/et: Make Hyper-V event timer a device. 
Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe, Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5957
 2016-04-22 05:15:59 +00:00
Sepherosa Ziehau
7cd9b96b7a hyperv: Update copyright to 2016 for the files Microsoft changed in 2016 
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6039
 2016-04-22 05:01:43 +00:00
Sepherosa Ziehau
adc9edf341 hyperv/vmbus: Make device probe/attach synchronous w/ vmbus attach/SYSINIT 
Discussed with:	Jun Su <junsu microsoft com>, Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-19 09:42:48 +00:00
Sepherosa Ziehau
55a1cfa16b hyperv: Remove two assign-only local variables 
Submitted by:	Jun Su <junsu microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-19 09:25:56 +00:00
Sepherosa Ziehau
8310528673 hyperv/hn: Hide ring to channel linkage message under bootverbose 
Suggested by:	Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-15 08:17:55 +00:00
Sepherosa Ziehau
5f9b92f865 hyperv: No need to zero out softc 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-15 08:08:46 +00:00
Sepherosa Ziehau
a014f7e1a6 hyperv/stor: Use xpt_done_direct() upon I/O completion 
Reviewed by:	mav
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5955
 2016-04-15 08:01:07 +00:00
Sepherosa Ziehau
4a060c8407 hyperv/vmbus: Put multi-channel offer logging under bootverbose 
Suggested by:	Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-15 07:48:41 +00:00
Sepherosa Ziehau
97c4992c89 hyperv/stor: Temporary disable the wrongly done command timeout. 
It will be reenabled once the request processing is corrected.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-15 07:39:43 +00:00
Sepherosa Ziehau
0c29fe6db8 hyperv: Deprecate HYPERV option by moving Hyper-V IDT vector into vmbus 
Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	jhb, kib, sephe
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5910
 2016-04-15 02:20:18 +00:00
Sepherosa Ziehau
7e98851e93 hyperv: device_get_softc does not return NULL 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-13 09:20:29 +00:00
Sepherosa Ziehau
1859e4178b hyperv/vmbus: Merge duplicated version check for events 
Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5911
 2016-04-13 03:45:39 +00:00
Sepherosa Ziehau
3d861d81b9 hyperv: Replace 0 w/ NULL 
Submitted by:	pfg
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-12 02:01:16 +00:00
Sepherosa Ziehau
9859c43dfe hyperv: Typo 
Noticed by:	kib
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 09:52:24 +00:00
Sepherosa Ziehau
e331206e0f hyperv/hn: Remove unnecessary NULL checks 
Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5905
 2016-04-11 06:59:13 +00:00
Sepherosa Ziehau
b81e22fced hyperv/hn: By default enable multiple TX/RX rings, aka vRSS. 
Reviewed by:	Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5880
 2016-04-11 06:37:50 +00:00
Sepherosa Ziehau
0e86334196 hyperv/hn: Cap default # of rings to 8. 
8 gives the best performance in both Azure and local Hyper-V on both
10Ge and 40Ge. More rings are still allowed by manual configuration.

Reviewed by:	Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5879
 2016-04-11 06:31:52 +00:00
Sepherosa Ziehau
083b2c353d hyperv: Define macro for Hyper-V interface 
Suggested by:	rpokala
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 06:22:26 +00:00
Sepherosa Ziehau
29b7b56766 hyperv: Print more features 
And add comment about the MSR features.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 06:15:40 +00:00
Sepherosa Ziehau
3f2b057e35 hyperv: Break long line 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 04:56:23 +00:00
Sepherosa Ziehau
e4276edca5 hyperv: Declare hyperv_{features,recommends} properly 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 04:49:21 +00:00
Sepherosa Ziehau
c8d7fb6a5c hyperv: Resurrect r297481 
This time we make sure that the TIME_REF_COUNT MSR exists.

Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe, Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 03:36:07 +00:00
Sepherosa Ziehau
68247c05c2 hyperv: Identify Hyper-V features and recommends properly 
Features bits will be used to detect devices, e.g. timers, which
do not have corresponding event channels.

Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe, Dexuan Cui <decui microsoft com>
Rearranged by:	sephe
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 03:28:17 +00:00
Sepherosa Ziehau
e69fbdcbdf hyperv/vmbus: Get rid of max_leaf detection; this is actually not used. 
It will be replaced by a new one.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 03:14:28 +00:00
Sepherosa Ziehau
2924c4efeb hyperv/vmbus: Nuke unused function 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-11 03:07:35 +00:00
Pedro F. Giffuni
74b8d63dcc Cleanup unnecessary semicolons from the kernel. 
Found with devel/coccinelle.
 2016-04-10 23:07:00 +00:00
Sepherosa Ziehau
222c454d33 hyperv: Revert r297481 
Use vm_guest == VM_GUEST_HV is not enough to determine whether FreeBSD
is running on Hyper-V or not.  What a mess.

Reported by:	smokehydration tutanota com
Sponsored by:	Microsoft OSTC
 2016-04-08 09:20:46 +00:00
Sepherosa Ziehau
e43d20993a hyperv: Use lapic_{alloc,free}_ipi to allocate private interrupt vector 
Suggested by:	jhb
Reviewed by:	Dexuan Cui <decui microsoft com>, Jun Su <junsu microsoft com>
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5850
 2016-04-07 07:12:57 +00:00
Sepherosa Ziehau
a121087069 hyperv: Typo in r297634 
Noticed by:	hiren
MFC after:	1 week
Sponsored by:	Microsoft OSTC
 2016-04-07 05:56:22 +00:00