src-test2/sys/modules/hyperv, branch release/11.4.0

MFC r314651,r318439,r318440:

2017-05-30T04:11:12Z

r314651: sys/modules: normalize .CURDIR-relative paths to SRCTOP This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 r318439: Normalize .PATH on SRCTOP This will help Jenkins dedupe 9 warnings between the static build and the module build of ipsec(4). Missed in SRCTOP conversion in r314651. MFC with: r314651 r318440: Normalize SYSDIR on SRCTOP instead of .CURDIR This is being done to simplify pathing for CFLAGS and source files.

MFC 318136

2017-05-17T01:48:44Z

hyperv/vmbus: Reorganize vmbus device tree For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the resources for PCI passthrough and SR-IOV. There is no acpi_syscontainer0 on GEN1 Hyper-V. For GEN2 Hyper-V, vmbus is attached to acpi_syscontainer0, which contains the resources for PCI passthrough and SR-IOV. There is no pcib0 on GEN2 Hyper-V. The ACPI VMBUS device now only holds its _CRS, which is empty as of this commit; its existence is mainly for upward compatibility. Device tree structure is suggested by jhb@. Tested-by: dexuan@ Collabrated-wth: dexuan@ Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D10565

MFC 310324

2017-01-05T08:34:08Z

hyperv/ic: Rename cleaned up files. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8850

MFC 310317

2017-01-05T08:21:46Z

hyperv/ic: Rname cleaned up file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8848

MFC 309346,309348,309353

2017-01-05T06:11:53Z

309346 hyperv/hn: Add HN_DEBUG kernel option. If bufring is used for per-TX ring descs, don't update "available" counter, which is only used to help debugging. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8674 309348 hyperv/hn: Don't hold txdesc, if no BPFs are attached. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8675 309353 hyperv/hn: Add 'options RSS' support. Reviewed by: adrian Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8676

MFC 308664,308742,308743

2017-01-05T03:20:00Z

308664 hyperv/vss: Add driver and tools for VSS VSS stands for "Volume Shadow Copy Service". Unlike virtual machine snapshot, it only takes snapshot for the virtual disks, so both filesystem and applications have to aware of it, and cooperate the whole VSS process. This driver exposes two device files to the userland: /dev/hv_fsvss_dev Normally userland programs should _not_ mess with this device file. It is currently used by the hv_vss_daemon(8), which freezes and thaws the filesystem. NOTE: currently only UFS is supported, if the system mounts _any_ other filesystems, the hv_vss_daemon(8) will veto the VSS process. If hv_vss_daemon(8) was disabled, then this device file must be opened, and proper ioctls must be issued to keep the VSS working. /dev/hv_appvss_dev Userland application can opened this device file to receive the VSS freeze notification, hold the VSS for a while (mainly to flush application data to filesystem), release the VSS process, and receive the VSS thaw notification i.e. applications can run again. The VSS will still work, even if this device file is not opened. However, only filesystem consistency is promised, if this device file is not opened or is not operated properly. hv_vss_daemon(8) is started by devd(8) by default. It can be disabled by editting /etc/devd/hyperv.conf. Submitted by: Hongjiang Zhang Reviewed by: kib, mckusick Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8224 308742 hyperv/vss: Nuke unused variables. Submitted by: markj Reported by: markj Sponsored by: Microsoft 308743 hyperv/vss: Install the userland daemon to /usr/sbin instead of / Submitted by: markj Reported by: markj Sponsored by: Microsoft

MFC: 308723-308725,308793-308795,309127

2016-11-30T06:20:43Z

Approved by: sephe (mentor) r308723 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) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8410 r308724 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) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8409 r308725 hyperv/pcib: enable PCIe pass-through (a.k.a. Discrete Device Assignment) The feature enables us to pass through physical PCIe devices to FreeBSD VM running on Hyper-V (Windows Server 2016) to get near-native performance with low CPU utilization. The patch implements a PCI bridge driver to support the feature: 1) The pcib driver talks to the host to discover device(s) and presents the device(s) to FreeBSD's pci driver via PCI configuration space (note: to access the configuration space, we don't use the standard I/O port 0xCF8/CFC method; instead, we use an MMIO-based method supplied by Hyper-V, which is very similar to the 0xCF8/CFC method). 2) The pcib driver allocates resources for the device(s) and initialize the related BARs, when the device driver's attach method is invoked; 3) The pcib driver talks to the host to create MSI/MSI-X interrupt remapping between the guest and the host; 4) The pcib driver supports device hot add/remove. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8332 r308793 hyperv/pcib: Fix the build for some kernel configs Add the dependency on pci explicitly for the pcib and vmbus drivers. The related Makefiles are updated accordingly too. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft r308794 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) Sponsored by: Microsoft r308795 hyperv/pcib: change the file name: pcib.c -> vmbus_pcib.c This makes the file name and the variable naming in the file consistent. Reviewed by: sephe Approved by: sephe (mentor) Sponsored by: Microsoft r309127 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) Sponsored by: Microsoft

MFC 308163

2016-11-14T06:00:30Z

hyperv/hn: Rename cleaned up file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8390

MFC 308018,308116

2016-11-14T05:24:05Z

308018 hyeprv/hn: Rename cleaned up RNDIS header file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8360 308116 hyperv/hn: Rename cleaned up RNDIS source file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8361

MFC 308011,308012

2016-11-14T03:36:59Z

308011 hyperv/hn: Rename cleaned up NVS header file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8353 308012 hyperv/hn: Rename cleaned up NVS source file. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8354