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* MFC 294886sephe2016-06-131-0/+2
| | | | | | | | | | | | | | | | 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
* MFC [Hyper-V]: r293719-r293722, r293869-r293871, r293873-r293875, r293877sephe2016-02-191-5/+0
| | | | | | | | | | | | | | | | | 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
* MFC r292861:delphij2016-01-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* MFC r284746 and r284889 TSO and checksum offloading support for Netvscwhu2015-07-071-1/+1
| | | | | | | | | | | driver on Hyper-V. Submitted by: whu Reviewed by: royger Approved by: re Relnotes: yes Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D2906
* MFC r282212:whu2015-05-221-7/+160
| | | | | | | | | | | | | | | | | | | | | 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
* MFC r271493,271688-271689,271696,271854,272139-272143:delphij2014-09-301-0/+29
| | | | | | | | | | | | Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft, many thanks for their continued support of FreeBSD. While I'm there, also implement a new build knob, WITHOUT_HYPERV to disable building and installing of the HyperV utilities when necessary. The HyperV utilities are only built for i386 and amd64 targets. Approved by: re (gjb)
* Properly revert r272128.gjb2014-09-261-29/+0
| | | | | Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
* Revert r272149, which introduces obscure vestiges from thegjb2014-09-261-0/+29
| | | | | | | r272128 reversal. Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
* Revert r272128:gjb2014-09-261-29/+0
| | | | | | | | | | | Though this passes the buildworld test, this fails during installworld with: make[3]: "/releng/scripts-release/chroots/10/i386/release/etc/devd/Makefile" line 13: Malformed conditional (${MK_HYPERV} != "no") Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
* MFC r271493,271688,271689,271696,271854:delphij2014-09-251-0/+29
| | | | | | | | | | | | Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft, many thanks for their continued support of FreeBSD. While I'm there, also implement a new build knob, WITHOUT_HYPERV to disable building and installing of the HyperV utilities when necessary. The HyperV utilities are only built for i386 and amd64 targets. Approved by: re (gjb)
* MFC r256350grehan2013-10-111-0/+3
| | | | | | | Fix vmbus channel memory leak where incorrect length parameter was being passed to contigfree(). Approved by: re@ (glebius)
* Microsoft have changed their policy on how the hyper-v code willgrehan2013-07-171-0/+796
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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