| Commit message (Collapse) | Author | Age | Files | Lines |
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Boot compatibility improvements with Azure VMs. [EN-17:06]
Approved by: so
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Submitted by: Dexuan Cui <decui microsoft.com>, gjb
Approved by: so
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hyperv: Wait 5 seconds for hyperv result, instead of 500ms
This addresses various devices (network, stoarge) attach failure.
Approved by: re (gjb)
Reported by: Hongxiong Xian <v-hoxian microsoft com>
Tested by: Hongxiong Xian <v-hoxian microsoft com>
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5435
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r294553
hyperv/vmbus: Lookup channel through id table
Vmbus event handler will need to find the channel by its relative
id, when software interrupt for event happens. The original lookup
searches the channel list, which is not very efficient. We now
create a table indexed by the channel relative id to speed up
the channel lookup.
Submitted by: Hongjiang Zhang <honzhan microsoft com>
Reviewed by: delphij, adrain, sephe, Dexuan Cui <decui microsoft com>
Approved by: adrian (mentor)
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D4802
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r294700
hyperv/hn: Partly rework transmission path
- Avoid unnecessary malloc/free on transmission path.
- busdma(9)-fy transmission path.
- Properly handle IFF_DRV_OACTIVE. This should fix the network
stalls reported by many.
- Properly setup TSO parameters.
- Properly handle bpf(4) tapping. This 5 times the performance
during TCP sending test, when there is one bpf(4) attached.
- Allow size of chimney sending be tuned on a running system.
Default value still needs more test to determine.
Reviewed by: adrian, delphij
Approved by: adrian (mentor)
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D4972
Approved by: re (marius)
Sponsored by: Microsoft OSTC
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r293719 hyperv/hn: Implement LRO
r293720 hyperv/hn: Implement SIOC[SG]IFMEDIA support
r293721 hyperv/hn: Avoid mbuf cluster allocation, if the packet is small.
r293722 hyperv/hn: Removed unused netvsc_init()
r293869 hyperv/hn: Unbreak LINT-NOIP
r293870 hyperv: use x86 generic code to do the hypervisor detection
r293871 hyperv: remove unused vmbus definitions
r293873 hyperv: implement an event timer
r293874 hyperv: add interrupt counters
r293875 hyperv: set receive buffer size according to NVSP protocol version
r293877 Unbreak `make depend` with sys/modules/hyperv/vmbus after r293870
Approved by: re (glebius), adrian (mentor)
Sponsored by: Microsoft OSTC
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hyperv: vmbus: run non-blocking message handlers in vmbus_msg_swintr()
We'll remove the per-channel control_work_queue because it can't properly
do serialization of message handling, e.g., when there are 2 NIC devices,
vmbus_channel_on_offer() -> hv_queue_work_item() has a race condition:
for an SMP VM, vmbus_channel_process_offer() can run concurrently on
different CPUs and if the second NIC's
vmbus_channel_process_offer() -> hv_vmbus_child_device_register() runs
first, the second NIC's name will be hn0 and the first NIC's name will
be hn1!
We can fix the race condition by removing the per-channel control_work_queue
and run all the message handlers in the global
hv_vmbus_g_connection.work_queue -- we'll do this in the next patch.
With the coming next patch, we have to run the non-blocking handlers
directly in the kernel thread vmbus_msg_swintr(), because the special
handling of sub-channel: when a sub-channel (e.g., of the storvsc driver)
is received and being handled in vmbus_channel_on_offer() running on the
global hv_vmbus_g_connection.work_queue, vmbus_channel_process_offer()
invokes channel->sc_creation_callback, i.e., storvsc_handle_sc_creation,
and the callback will invoke hv_vmbus_channel_open() -> hv_vmbus_post_message
and expect a further reply from the host, but the handling of the further
messag can't be done because the current message's handling hasn't finished
yet; as result, hv_vmbus_channel_open() -> sema_timedwait() will time out
and th device can't work.
Also renamed the handler type from hv_pfn_channel_msg_handler to
vmbus_msg_handler: the 'pfn' and 'channel' in the old name make no sense.
Submitted by: Dexuan Cui <decui microsoft com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D4596
MFC r292859:
hyperv: vmbus: remove the per-channel control_work_queue
Now vmbus_channel_on_offer() -> vmbus_channel_process_offer() can
safely run on the global hv_vmbus_g_connection.work_queue now.
We remove the per-channel control_work_queue to achieve the proper
serialization of the message handling.
I removed the bogus TODO in vmbus_channel_on_offer(): a vmbus offer
can only come from the parent partition, i.e., the host.
PR: kern/205156
Submitted by: Dexuan Cui <decui microsoft com>
Reviewed by: Howard Su <howard0su gmail com>, delphij
Differential Revision: https://reviews.freebsd.org/D4597
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Remove redundant vmbus_select_outgoing_channel declaration already handled
in include/hyperv.h
This unbreaks the gcc 4.2.1 kernel build of hyperv
Differential Revision: https://reviews.freebsd.org/D4684
Reviewed by: royger
Sponsored by: EMC / Isilon Storage Division
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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
Approved by: royger
Relnotes: yes
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D2575
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r257368, r257416
Hints-only devices should return BUS_PROBE_NOWILDCARD from their probe
methods.
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Centralize the detection logic for the Hyper-V hypervisor.
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs, grehan
Approved by: re (gjb)
sys/sys/systm.h:
* Add a new VM_GUEST type, VM_GUEST_HV (HyperV guest).
sys/dev/hyperv/vmbus/hv_vmbus_drv_freebsd.c:
sys/dev/hyperv/vmbus/hv_hv.c:
sys/dev/hyperv/stordisengage/hv_ata_pci_disengage.c:
* Set vm_guest to VM_GUEST_HV and use that on other HyperV related
devices instead of cloning the cpuid hypervisor check.
* Cleanup the vmbus_identify function.
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Fix vmbus channel memory leak where incorrect length parameter was
being passed to contigfree().
Approved by: re@ (glebius)
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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
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aware drivers on Xen hypervisors that advertise support for some
HyperV features.
x86/xen/hvm.c:
When running in HVM mode on a Xen hypervisor, set vm_guest
to VM_GUEST_XEN so other virtualization aware components in
the FreeBSD kernel can detect this mode is active.
dev/hyperv/vmbus/hv_hv.c:
Use vm_guest to ignore Xen's HyperV emulation when Xen is
detected and Xen PV drivers are active.
Reported by: Shanker Balan
Submitted by: Roger Pau Monné
Sponsored by: Citrix Systems R&D
Reviewed by: gibbs
Approved by: re (Xen blanket)
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Obtained from: Microsoft Hyper-v dev team
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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.
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