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[PATCH-for-9.1] rdma: Remove RDMA subsystem and pvrdma device
|
From: |
Philippe Mathieu-Daudé |
|
Subject: |
[PATCH-for-9.1] rdma: Remove RDMA subsystem and pvrdma device |
|
Date: |
Wed, 27 Mar 2024 11:55:48 +0100 |
The whole RDMA subsystem was deprecated in commit e9a54265f5
("hw/rdma: Deprecate the pvrdma device and the rdma subsystem")
released in v8.2. Time to remove it.
Keep the RAM_SAVE_FLAG_HOOK definition since it might appears
in old migration streams.
Remove the dependencies on libibumad and libibverbs.
Remove the generated vmw_pvrdma/ directory from linux-headers.
Remove RDMA handling from migration.
Remove RDMA handling in GlusterFS block driver.
Remove rdmacm-mux tool from contrib/.
Remove PVRDMA device.
Cc: Peter Xu <peterx@redhat.com>
Cc: Li Zhijian <lizhijian@fujitsu.com>
Cc: Yuval Shaia <yuval.shaia.ml@gmail.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
MAINTAINERS | 17 -
docs/about/deprecated.rst | 9 -
docs/about/removed-features.rst | 4 +
docs/devel/migration/main.rst | 6 -
docs/pvrdma.txt | 345 --
docs/rdma.txt | 420 --
docs/system/device-url-syntax.rst.inc | 4 +-
docs/system/loongarch/virt.rst | 2 +-
docs/system/qemu-block-drivers.rst.inc | 1 -
meson.build | 59 -
qapi/machine.json | 17 -
qapi/migration.json | 31 +-
qapi/qapi-schema.json | 1 -
qapi/rdma.json | 38 -
contrib/rdmacm-mux/rdmacm-mux.h | 61 -
hw/rdma/rdma_backend.h | 129 -
hw/rdma/rdma_backend_defs.h | 76 -
hw/rdma/rdma_rm.h | 97 -
hw/rdma/rdma_rm_defs.h | 146 -
hw/rdma/rdma_utils.h | 63 -
hw/rdma/trace.h | 1 -
hw/rdma/vmw/pvrdma.h | 144 -
hw/rdma/vmw/pvrdma_dev_ring.h | 46 -
hw/rdma/vmw/pvrdma_qp_ops.h | 28 -
hw/rdma/vmw/trace.h | 1 -
include/hw/rdma/rdma.h | 37 -
include/monitor/hmp.h | 1 -
.../infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h | 685 ---
.../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h | 348 --
.../standard-headers/rdma/vmw_pvrdma-abi.h | 310 --
migration/migration-stats.h | 6 +-
migration/migration.h | 9 -
migration/options.h | 2 -
migration/rdma.h | 69 -
block/gluster.c | 39 -
contrib/rdmacm-mux/main.c | 831 ----
hw/core/machine-qmp-cmds.c | 32 -
hw/rdma/rdma.c | 30 -
hw/rdma/rdma_backend.c | 1401 ------
hw/rdma/rdma_rm.c | 812 ----
hw/rdma/rdma_utils.c | 126 -
hw/rdma/vmw/pvrdma_cmd.c | 815 ----
hw/rdma/vmw/pvrdma_dev_ring.c | 141 -
hw/rdma/vmw/pvrdma_main.c | 735 ---
hw/rdma/vmw/pvrdma_qp_ops.c | 298 --
migration/migration-stats.c | 5 +-
migration/migration.c | 31 -
migration/options.c | 16 -
migration/qemu-file.c | 1 -
migration/ram.c | 86 +-
migration/rdma.c | 4184 -----------------
migration/savevm.c | 2 +-
monitor/qmp-cmds.c | 1 -
Kconfig.host | 3 -
contrib/rdmacm-mux/meson.build | 7 -
hmp-commands-info.hx | 13 -
hw/Kconfig | 1 -
hw/meson.build | 1 -
hw/rdma/Kconfig | 3 -
hw/rdma/meson.build | 12 -
hw/rdma/trace-events | 31 -
hw/rdma/vmw/trace-events | 17 -
meson_options.txt | 4 -
migration/meson.build | 1 -
migration/trace-events | 68 +-
qapi/meson.build | 1 -
qemu-options.hx | 6 -
.../ci/org.centos/stream/8/x86_64/configure | 1 -
scripts/ci/setup/build-environment.yml | 2 -
scripts/coverity-scan/run-coverity-scan | 2 +-
scripts/meson-buildoptions.sh | 6 -
scripts/update-linux-headers.sh | 27 -
tests/lcitool/projects/qemu.yml | 2 -
tests/migration/guestperf/engine.py | 4 +-
74 files changed, 20 insertions(+), 12991 deletions(-)
delete mode 100644 docs/pvrdma.txt
delete mode 100644 docs/rdma.txt
delete mode 100644 qapi/rdma.json
delete mode 100644 contrib/rdmacm-mux/rdmacm-mux.h
delete mode 100644 hw/rdma/rdma_backend.h
delete mode 100644 hw/rdma/rdma_backend_defs.h
delete mode 100644 hw/rdma/rdma_rm.h
delete mode 100644 hw/rdma/rdma_rm_defs.h
delete mode 100644 hw/rdma/rdma_utils.h
delete mode 100644 hw/rdma/trace.h
delete mode 100644 hw/rdma/vmw/pvrdma.h
delete mode 100644 hw/rdma/vmw/pvrdma_dev_ring.h
delete mode 100644 hw/rdma/vmw/pvrdma_qp_ops.h
delete mode 100644 hw/rdma/vmw/trace.h
delete mode 100644 include/hw/rdma/rdma.h
delete mode 100644
include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
delete mode 100644
include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
delete mode 100644 include/standard-headers/rdma/vmw_pvrdma-abi.h
delete mode 100644 migration/rdma.h
delete mode 100644 contrib/rdmacm-mux/main.c
delete mode 100644 hw/rdma/rdma.c
delete mode 100644 hw/rdma/rdma_backend.c
delete mode 100644 hw/rdma/rdma_rm.c
delete mode 100644 hw/rdma/rdma_utils.c
delete mode 100644 hw/rdma/vmw/pvrdma_cmd.c
delete mode 100644 hw/rdma/vmw/pvrdma_dev_ring.c
delete mode 100644 hw/rdma/vmw/pvrdma_main.c
delete mode 100644 hw/rdma/vmw/pvrdma_qp_ops.c
delete mode 100644 migration/rdma.c
delete mode 100644 contrib/rdmacm-mux/meson.build
delete mode 100644 hw/rdma/Kconfig
delete mode 100644 hw/rdma/meson.build
delete mode 100644 hw/rdma/trace-events
delete mode 100644 hw/rdma/vmw/trace-events
diff --git a/MAINTAINERS b/MAINTAINERS
index a07af6b9d4..05226cea0a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3426,13 +3426,6 @@ F: docs/devel/migration.rst
F: qapi/migration.json
F: tests/migration/
F: util/userfaultfd.c
-X: migration/rdma*
-
-RDMA Migration
-R: Li Zhijian <lizhijian@fujitsu.com>
-R: Peter Xu <peterx@redhat.com>
-S: Odd Fixes
-F: migration/rdma*
Migration dirty limit and dirty page rate
M: Hyman Huang <yong.huang@smartx.com>
@@ -4060,16 +4053,6 @@ F: block/replication.c
F: tests/unit/test-replication.c
F: docs/block-replication.txt
-PVRDMA
-M: Yuval Shaia <yuval.shaia.ml@gmail.com>
-M: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
-S: Odd Fixes
-F: hw/rdma/*
-F: hw/rdma/vmw/*
-F: docs/pvrdma.txt
-F: contrib/rdmacm-mux/*
-F: qapi/rdma.json
-
Semihosting
M: Alex Bennée <alex.bennee@linaro.org>
S: Maintained
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 7b548519b5..29eae69e50 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -376,15 +376,6 @@ recommending to switch to their stable counterparts:
- "Zve64f" should be replaced with "zve64f"
- "Zve64d" should be replaced with "zve64d"
-``-device pvrdma`` and the rdma subsystem (since 8.2)
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-The pvrdma device and the whole rdma subsystem are in a bad shape and
-without active maintenance. The QEMU project intends to remove this
-device and subsystem from the code base in a future release without
-replacement unless somebody steps up and improves the situation.
-
-
Block device options
''''''''''''''''''''
diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst
index f9cf874f7b..4d5bdc43b4 100644
--- a/docs/about/removed-features.rst
+++ b/docs/about/removed-features.rst
@@ -909,6 +909,10 @@ contains native support for this feature and thus use of
the option
ROM approach was obsolete. The native SeaBIOS support can be activated
by using ``-machine graphics=off``.
+``pvrdma`` and the RDMA subsystem (removed in 9.1)
+''''''''''''''''''''''''''''''''''''''''''''''''''
+
+The 'pvrdma' device and the whole RDMA subsystem have been removed.
Related binaries
----------------
diff --git a/docs/devel/migration/main.rst b/docs/devel/migration/main.rst
index 54385a23e5..70278ce1e3 100644
--- a/docs/devel/migration/main.rst
+++ b/docs/devel/migration/main.rst
@@ -47,12 +47,6 @@ over any transport.
QEMU interference. Note that QEMU does not flush cached file
data/metadata at the end of migration.
-In addition, support is included for migration using RDMA, which
-transports the page data using ``RDMA``, where the hardware takes care of
-transporting the pages, and the load on the CPU is much lower. While the
-internals of RDMA migration are a bit different, this isn't really visible
-outside the RAM migration code.
-
All these migration protocols use the same infrastructure to
save/restore state devices. This infrastructure is shared with the
savevm/loadvm functionality.
diff --git a/docs/pvrdma.txt b/docs/pvrdma.txt
deleted file mode 100644
index 5c122fe818..0000000000
--- a/docs/pvrdma.txt
+++ /dev/null
@@ -1,345 +0,0 @@
-Paravirtualized RDMA Device (PVRDMA)
-====================================
-
-
-1. Description
-===============
-PVRDMA is the QEMU implementation of VMware's paravirtualized RDMA device.
-It works with its Linux Kernel driver AS IS, no need for any special guest
-modifications.
-
-While it complies with the VMware device, it can also communicate with bare
-metal RDMA-enabled machines as peers.
-
-It does not require an RDMA HCA in the host, it can work with Soft-RoCE (rxe).
-
-It does not require the whole guest RAM to be pinned allowing memory
-over-commit and, even if not implemented yet, migration support will be
-possible with some HW assistance.
-
-A project presentation accompany this document:
--
https://blog.linuxplumbersconf.org/2017/ocw/system/presentations/4730/original/lpc-2017-pvrdma-marcel-apfelbaum-yuval-shaia.pdf
-
-
-
-2. Setup
-========
-
-
-2.1 Guest setup
-===============
-Fedora 27+ kernels work out of the box, older distributions
-require updating the kernel to 4.14 to include the pvrdma driver.
-
-However the libpvrdma library needed by User Level Software is still
-not available as part of the distributions, so the rdma-core library
-needs to be compiled and optionally installed.
-
-Please follow the instructions at:
- https://github.com/linux-rdma/rdma-core.git
-
-
-2.2 Host Setup
-==============
-The pvrdma backend is an ibdevice interface that can be exposed
-either by a Soft-RoCE(rxe) device on machines with no RDMA device,
-or an HCA SRIOV function(VF/PF).
-Note that ibdevice interfaces can't be shared between pvrdma devices,
-each one requiring a separate instance (rxe or SRIOV VF).
-
-
-2.2.1 Soft-RoCE backend(rxe)
-===========================
-A stable version of rxe is required, Fedora 27+ or a Linux
-Kernel 4.14+ is preferred.
-
-The rdma_rxe module is part of the Linux Kernel but not loaded by default.
-Install the User Level library (librxe) following the instructions from:
-https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home
-
-Associate an ETH interface with rxe by running:
- rxe_cfg add eth0
-An rxe0 ibdevice interface will be created and can be used as pvrdma backend.
-
-
-2.2.2 RDMA device Virtual Function backend
-==========================================
-Nothing special is required, the pvrdma device can work not only with
-Ethernet Links, but also Infinibands Links.
-All is needed is an ibdevice with an active port, for Mellanox cards
-will be something like mlx5_6 which can be the backend.
-
-
-2.2.3 QEMU setup
-================
-Configure QEMU with --enable-rdma flag, installing
-the required RDMA libraries.
-
-
-
-3. Usage
-========
-
-
-3.1 VM Memory settings
-======================
-Currently the device is working only with memory backed RAM
-and it must be mark as "shared":
- -m 1G \
- -object memory-backend-ram,id=mb1,size=1G,share \
- -numa node,memdev=mb1 \
-
-
-3.2 MAD Multiplexer
-===================
-MAD Multiplexer is a service that exposes MAD-like interface for VMs in
-order to overcome the limitation where only single entity can register with
-MAD layer to send and receive RDMA-CM MAD packets.
-
-To build rdmacm-mux run
-# make rdmacm-mux
-
-Before running the rdmacm-mux make sure that both ib_cm and rdma_cm kernel
-modules aren't loaded, otherwise the rdmacm-mux service will fail to start.
-
-The application accepts 3 command line arguments and exposes a UNIX socket
-to pass control and data to it.
--d rdma-device-name Name of RDMA device to register with
--s unix-socket-path Path to unix socket to listen (default
/var/run/rdmacm-mux)
--p rdma-device-port Port number of RDMA device to register with (default 1)
-The final UNIX socket file name is a concatenation of the 3 arguments so
-for example for device mlx5_0 on port 2 this /var/run/rdmacm-mux-mlx5_0-2
-will be created.
-
-pvrdma requires this service.
-
-Please refer to contrib/rdmacm-mux for more details.
-
-
-3.3 Service exposed by libvirt daemon
-=====================================
-The control over the RDMA device's GID table is done by updating the
-device's Ethernet function addresses.
-Usually the first GID entry is determined by the MAC address, the second by
-the first IPv6 address and the third by the IPv4 address. Other entries can
-be added by adding more IP addresses. The opposite is the same, i.e.
-whenever an address is removed, the corresponding GID entry is removed.
-The process is done by the network and RDMA stacks. Whenever an address is
-added the ib_core driver is notified and calls the device driver add_gid
-function which in turn update the device.
-To support this in pvrdma device the device hooks into the create_bind and
-destroy_bind HW commands triggered by pvrdma driver in guest.
-
-Whenever changed is made to the pvrdma port's GID table a special QMP
-messages is sent to be processed by libvirt to update the address of the
-backend Ethernet device.
-
-pvrdma requires that libvirt service will be up.
-
-
-3.4 PCI devices settings
-========================
-RoCE device exposes two functions - an Ethernet and RDMA.
-To support it, pvrdma device is composed of two PCI functions, an Ethernet
-device of type vmxnet3 on PCI slot 0 and a PVRDMA device on PCI slot 1. The
-Ethernet function can be used for other Ethernet purposes such as IP.
-
-
-3.5 Device parameters
-=====================
-- netdev: Specifies the Ethernet device function name on the host for
- example enp175s0f0. For Soft-RoCE device (rxe) this would be the Ethernet
- device used to create it.
-- ibdev: The IB device name on host for example rxe0, mlx5_0 etc.
-- mad-chardev: The name of the MAD multiplexer char device.
-- ibport: In case of multi-port device (such as Mellanox's HCA) this
- specify the port to use. If not set 1 will be used.
-- dev-caps-max-mr-size: The maximum size of MR.
-- dev-caps-max-qp: Maximum number of QPs.
-- dev-caps-max-cq: Maximum number of CQs.
-- dev-caps-max-mr: Maximum number of MRs.
-- dev-caps-max-pd: Maximum number of PDs.
-- dev-caps-max-ah: Maximum number of AHs.
-
-Notes:
-- The first 3 parameters are mandatory settings, the rest have their
- defaults.
-- The last 8 parameters (the ones that prefixed by dev-caps) defines the top
- limits but the final values is adjusted by the backend device limitations.
-- netdev can be extracted from ibdev's sysfs
- (/sys/class/infiniband/<ibdev>/device/net/)
-
-
-3.6 Example
-===========
-Define bridge device with vmxnet3 network backend:
-<interface type='bridge'>
- <mac address='56:b4:44:e9:62:dc'/>
- <source bridge='bridge1'/>
- <model type='vmxnet3'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'
multifunction='on'/>
-</interface>
-
-Define pvrdma device:
-<qemu:commandline>
- <qemu:arg value='-object'/>
- <qemu:arg value='memory-backend-ram,id=mb1,size=1G,share'/>
- <qemu:arg value='-numa'/>
- <qemu:arg value='node,memdev=mb1'/>
- <qemu:arg value='-chardev'/>
- <qemu:arg value='socket,path=/var/run/rdmacm-mux-rxe0-1,id=mads'/>
- <qemu:arg value='-device'/>
- <qemu:arg
value='pvrdma,addr=10.1,ibdev=rxe0,netdev=bridge0,mad-chardev=mads'/>
-</qemu:commandline>
-
-
-
-4. Implementation details
-=========================
-
-
-4.1 Overview
-============
-The device acts like a proxy between the Guest Driver and the host
-ibdevice interface.
-On configuration path:
- - For every hardware resource request (PD/QP/CQ/...) the pvrdma will request
- a resource from the backend interface, maintaining a 1-1 mapping
- between the guest and host.
-On data path:
- - Every post_send/receive received from the guest will be converted into
- a post_send/receive for the backend. The buffers data will not be touched
- or copied resulting in near bare-metal performance for large enough buffers.
- - Completions from the backend interface will result in completions for
- the pvrdma device.
-
-
-4.2 PCI BARs
-============
-PCI Bars:
- BAR 0 - MSI-X
- MSI-X vectors:
- (0) Command - used when execution of a command is completed.
- (1) Async - not in use.
- (2) Completion - used when a completion event is placed in
- device's CQ ring.
- BAR 1 - Registers
- --------------------------------------------------------
- | VERSION | DSR | CTL | REQ | ERR | ICR | IMR | MAC |
- --------------------------------------------------------
- DSR - Address of driver/device shared memory used
- for the command channel, used for passing:
- - General info such as driver version
- - Address of 'command' and 'response'
- - Address of async ring
- - Address of device's CQ ring
- - Device capabilities
- CTL - Device control operations (activate, reset etc)
- IMG - Set interrupt mask
- REQ - Command execution register
- ERR - Operation status
-
- BAR 2 - UAR
- ---------------------------------------------------------
- | QP_NUM | SEND/RECV Flag || CQ_NUM | ARM/POLL Flag |
- ---------------------------------------------------------
- - Offset 0 used for QP operations (send and recv)
- - Offset 4 used for CQ operations (arm and poll)
-
-
-4.3 Major flows
-===============
-
-4.3.1 Create CQ
-===============
- - Guest driver
- - Allocates pages for CQ ring
- - Creates page directory (pdir) to hold CQ ring's pages
- - Initializes CQ ring
- - Initializes 'Create CQ' command object (cqe, pdir etc)
- - Copies the command to 'command' address
- - Writes 0 into REQ register
- - Device
- - Reads the request object from the 'command' address
- - Allocates CQ object and initialize CQ ring based on pdir
- - Creates the backend CQ
- - Writes operation status to ERR register
- - Posts command-interrupt to guest
- - Guest driver
- - Reads the HW response code from ERR register
-
-4.3.2 Create QP
-===============
- - Guest driver
- - Allocates pages for send and receive rings
- - Creates page directory(pdir) to hold the ring's pages
- - Initializes 'Create QP' command object (max_send_wr,
- send_cq_handle, recv_cq_handle, pdir etc)
- - Copies the object to 'command' address
- - Write 0 into REQ register
- - Device
- - Reads the request object from 'command' address
- - Allocates the QP object and initialize
- - Send and recv rings based on pdir
- - Send and recv ring state
- - Creates the backend QP
- - Writes the operation status to ERR register
- - Posts command-interrupt to guest
- - Guest driver
- - Reads the HW response code from ERR register
-
-4.3.3 Post receive
-==================
- - Guest driver
- - Initializes a wqe and place it on recv ring
- - Write to qpn|qp_recv_bit (31) to QP offset in UAR
- - Device
- - Extracts qpn from UAR
- - Walks through the ring and does the following for each wqe
- - Prepares the backend CQE context to be used when
- receiving completion from backend (wr_id, op_code, emu_cq_num)
- - For each sge prepares backend sge
- - Calls backend's post_recv
-
-4.3.4 Process backend events
-============================
- - Done by a dedicated thread used to process backend events;
- at initialization is attached to the device and creates
- the communication channel.
- - Thread main loop:
- - Polls for completions
- - Extracts QEMU _cq_num, wr_id and op_code from context
- - Writes CQE to CQ ring
- - Writes CQ number to device CQ
- - Sends completion-interrupt to guest
- - Deallocates context
- - Acks the event to backend
-
-
-
-5. Limitations
-==============
-- The device obviously is limited by the Guest Linux Driver features
implementation
- of the VMware device API.
-- Memory registration mechanism requires mremap for every page in the buffer
in order
- to map it to a contiguous virtual address range. Since this is not the data
path
- it should not matter much. If the default max mr size is increased, be aware
that
- memory registration can take up to 0.5 seconds for 1GB of memory.
-- The device requires target page size to be the same as the host page size,
- otherwise it will fail to init.
-- QEMU cannot map guest RAM from a file descriptor if a pvrdma device is
attached,
- so it can't work with huge pages. The limitation will be addressed in the
future,
- however QEMU allocates Guest RAM with MADV_HUGEPAGE so if there are enough
huge
- pages available, QEMU will use them. QEMU will fail to init if the
requirements
- are not met.
-
-
-
-6. Performance
-==============
-By design the pvrdma device exits on each post-send/receive, so for small
buffers
-the performance is affected; however for medium buffers it will became close to
-bare metal and from 1MB buffers and up it reaches bare metal performance.
-(tested with 2 VMs, the pvrdma devices connected to 2 VFs of the same device)
-
-All the above assumes no memory registration is done on data path.
diff --git a/docs/rdma.txt b/docs/rdma.txt
deleted file mode 100644
index bd8dd799a9..0000000000
--- a/docs/rdma.txt
+++ /dev/null
@@ -1,420 +0,0 @@
-(RDMA: Remote Direct Memory Access)
-RDMA Live Migration Specification, Version # 1
-==============================================
-Wiki: https://wiki.qemu.org/Features/RDMALiveMigration
-Github: git@github.com:hinesmr/qemu.git, 'rdma' branch
-
-Copyright (C) 2013 Michael R. Hines <mrhines@us.ibm.com>
-
-An *exhaustive* paper (2010) shows additional performance details
-linked on the QEMU wiki above.
-
-Contents:
-=========
-* Introduction
-* Before running
-* Running
-* Performance
-* RDMA Migration Protocol Description
-* Versioning and Capabilities
-* QEMUFileRDMA Interface
-* Migration of VM's ram
-* Error handling
-* TODO
-
-Introduction:
-=============
-
-RDMA helps make your migration more deterministic under heavy load because
-of the significantly lower latency and higher throughput over TCP/IP. This is
-because the RDMA I/O architecture reduces the number of interrupts and
-data copies by bypassing the host networking stack. In particular, a TCP-based
-migration, under certain types of memory-bound workloads, may take a more
-unpredictable amount of time to complete the migration if the amount of
-memory tracked during each live migration iteration round cannot keep pace
-with the rate of dirty memory produced by the workload.
-
-RDMA currently comes in two flavors: both Ethernet based (RoCE, or RDMA
-over Converged Ethernet) as well as Infiniband-based. This implementation of
-migration using RDMA is capable of using both technologies because of
-the use of the OpenFabrics OFED software stack that abstracts out the
-programming model irrespective of the underlying hardware.
-
-Refer to openfabrics.org or your respective RDMA hardware vendor for
-an understanding on how to verify that you have the OFED software stack
-installed in your environment. You should be able to successfully link
-against the "librdmacm" and "libibverbs" libraries and development headers
-for a working build of QEMU to run successfully using RDMA Migration.
-
-BEFORE RUNNING:
-===============
-
-Use of RDMA during migration requires pinning and registering memory
-with the hardware. This means that memory must be physically resident
-before the hardware can transmit that memory to another machine.
-If this is not acceptable for your application or product, then the use
-of RDMA migration may in fact be harmful to co-located VMs or other
-software on the machine if there is not sufficient memory available to
-relocate the entire footprint of the virtual machine. If so, then the
-use of RDMA is discouraged and it is recommended to use standard TCP migration.
-
-Experimental: Next, decide if you want dynamic page registration.
-For example, if you have an 8GB RAM virtual machine, but only 1GB
-is in active use, then enabling this feature will cause all 8GB to
-be pinned and resident in memory. This feature mostly affects the
-bulk-phase round of the migration and can be enabled for extremely
-high-performance RDMA hardware using the following command:
-
-QEMU Monitor Command:
-$ migrate_set_capability rdma-pin-all on # disabled by default
-
-Performing this action will cause all 8GB to be pinned, so if that's
-not what you want, then please ignore this step altogether.
-
-On the other hand, this will also significantly speed up the bulk round
-of the migration, which can greatly reduce the "total" time of your migration.
-Example performance of this using an idle VM in the previous example
-can be found in the "Performance" section.
-
-Note: for very large virtual machines (hundreds of GBs), pinning all
-*all* of the memory of your virtual machine in the kernel is very expensive
-may extend the initial bulk iteration time by many seconds,
-and thus extending the total migration time. However, this will not
-affect the determinism or predictability of your migration you will
-still gain from the benefits of advanced pinning with RDMA.
-
-RUNNING:
-========
-
-First, set the migration speed to match your hardware's capabilities:
-
-QEMU Monitor Command:
-$ migrate_set_parameter max-bandwidth 40g # or whatever is the MAX of your
RDMA device
-
-Next, on the destination machine, add the following to the QEMU command line:
-
-qemu ..... -incoming rdma:host:port
-
-Finally, perform the actual migration on the source machine:
-
-QEMU Monitor Command:
-$ migrate -d rdma:host:port
-
-PERFORMANCE
-===========
-
-Here is a brief summary of total migration time and downtime using RDMA:
-Using a 40gbps infiniband link performing a worst-case stress test,
-using an 8GB RAM virtual machine:
-
-Using the following command:
-$ apt-get install stress
-$ stress --vm-bytes 7500M --vm 1 --vm-keep
-
-1. Migration throughput: 26 gigabits/second.
-2. Downtime (stop time) varies between 15 and 100 milliseconds.
-
-EFFECTS of memory registration on bulk phase round:
-
-For example, in the same 8GB RAM example with all 8GB of memory in
-active use and the VM itself is completely idle using the same 40 gbps
-infiniband link:
-
-1. rdma-pin-all disabled total time: approximately 7.5 seconds @ 9.5 Gbps
-2. rdma-pin-all enabled total time: approximately 4 seconds @ 26 Gbps
-
-These numbers would of course scale up to whatever size virtual machine
-you have to migrate using RDMA.
-
-Enabling this feature does *not* have any measurable affect on
-migration *downtime*. This is because, without this feature, all of the
-memory will have already been registered already in advance during
-the bulk round and does not need to be re-registered during the successive
-iteration rounds.
-
-RDMA Protocol Description:
-==========================
-
-Migration with RDMA is separated into two parts:
-
-1. The transmission of the pages using RDMA
-2. Everything else (a control channel is introduced)
-
-"Everything else" is transmitted using a formal
-protocol now, consisting of infiniband SEND messages.
-
-An infiniband SEND message is the standard ibverbs
-message used by applications of infiniband hardware.
-The only difference between a SEND message and an RDMA
-message is that SEND messages cause notifications
-to be posted to the completion queue (CQ) on the
-infiniband receiver side, whereas RDMA messages (used
-for VM's ram) do not (to behave like an actual DMA).
-
-Messages in infiniband require two things:
-
-1. registration of the memory that will be transmitted
-2. (SEND only) work requests to be posted on both
- sides of the network before the actual transmission
- can occur.
-
-RDMA messages are much easier to deal with. Once the memory
-on the receiver side is registered and pinned, we're
-basically done. All that is required is for the sender
-side to start dumping bytes onto the link.
-
-(Memory is not released from pinning until the migration
-completes, given that RDMA migrations are very fast.)
-
-SEND messages require more coordination because the
-receiver must have reserved space (using a receive
-work request) on the receive queue (RQ) before QEMUFileRDMA
-can start using them to carry all the bytes as
-a control transport for migration of device state.
-
-To begin the migration, the initial connection setup is
-as follows (migration-rdma.c):
-
-1. Receiver and Sender are started (command line or libvirt):
-2. Both sides post two RQ work requests
-3. Receiver does listen()
-4. Sender does connect()
-5. Receiver accept()
-6. Check versioning and capabilities (described later)
-
-At this point, we define a control channel on top of SEND messages
-which is described by a formal protocol. Each SEND message has a
-header portion and a data portion (but together are transmitted
-as a single SEND message).
-
-Header:
- * Length (of the data portion, uint32, network byte order)
- * Type (what command to perform, uint32, network byte
order)
- * Repeat (Number of commands in data portion, same type only)
-
-The 'Repeat' field is here to support future multiple page registrations
-in a single message without any need to change the protocol itself
-so that the protocol is compatible against multiple versions of QEMU.
-Version #1 requires that all server implementations of the protocol must
-check this field and register all requests found in the array of commands
located
-in the data portion and return an equal number of results in the response.
-The maximum number of repeats is hard-coded to 4096. This is a conservative
-limit based on the maximum size of a SEND message along with empirical
-observations on the maximum future benefit of simultaneous page registrations.
-
-The 'type' field has 12 different command values:
- 1. Unused
- 2. Error (sent to the source during bad things)
- 3. Ready (control-channel is available)
- 4. QEMU File (for sending non-live device state)
- 5. RAM Blocks request (used right after connection setup)
- 6. RAM Blocks result (used right after connection setup)
- 7. Compress page (zap zero page and skip registration)
- 8. Register request (dynamic chunk registration)
- 9. Register result ('rkey' to be used by sender)
- 10. Register finished (registration for current iteration
finished)
- 11. Unregister request (unpin previously registered memory)
- 12. Unregister finished (confirmation that unpin completed)
-
-A single control message, as hinted above, can contain within the data
-portion an array of many commands of the same type. If there is more than
-one command, then the 'repeat' field will be greater than 1.
-
-After connection setup, message 5 & 6 are used to exchange ram block
-information and optionally pin all the memory if requested by the user.
-
-After ram block exchange is completed, we have two protocol-level
-functions, responsible for communicating control-channel commands
-using the above list of values:
-
-Logically:
-
-qemu_rdma_exchange_recv(header, expected command type)
-
-1. We transmit a READY command to let the sender know that
- we are *ready* to receive some data bytes on the control channel.
-2. Before attempting to receive the expected command, we post another
- RQ work request to replace the one we just used up.
-3. Block on a CQ event channel and wait for the SEND to arrive.
-4. When the send arrives, librdmacm will unblock us.
-5. Verify that the command-type and version received matches the one we
expected.
-
-qemu_rdma_exchange_send(header, data, optional response header & data):
-
-1. Block on the CQ event channel waiting for a READY command
- from the receiver to tell us that the receiver
- is *ready* for us to transmit some new bytes.
-2. Optionally: if we are expecting a response from the command
- (that we have not yet transmitted), let's post an RQ
- work request to receive that data a few moments later.
-3. When the READY arrives, librdmacm will
- unblock us and we immediately post a RQ work request
- to replace the one we just used up.
-4. Now, we can actually post the work request to SEND
- the requested command type of the header we were asked for.
-5. Optionally, if we are expecting a response (as before),
- we block again and wait for that response using the additional
- work request we previously posted. (This is used to carry
- 'Register result' commands #6 back to the sender which
- hold the rkey need to perform RDMA. Note that the virtual address
- corresponding to this rkey was already exchanged at the beginning
- of the connection (described below).
-
-All of the remaining command types (not including 'ready')
-described above all use the aforementioned two functions to do the hard work:
-
-1. After connection setup, RAMBlock information is exchanged using
- this protocol before the actual migration begins. This information includes
- a description of each RAMBlock on the server side as well as the virtual
addresses
- and lengths of each RAMBlock. This is used by the client to determine the
- start and stop locations of chunks and how to register them dynamically
- before performing the RDMA operations.
-2. During runtime, once a 'chunk' becomes full of pages ready to
- be sent with RDMA, the registration commands are used to ask the
- other side to register the memory for this chunk and respond
- with the result (rkey) of the registration.
-3. Also, the QEMUFile interfaces also call these functions (described below)
- when transmitting non-live state, such as devices or to send
- its own protocol information during the migration process.
-4. Finally, zero pages are only checked if a page has not yet been registered
- using chunk registration (or not checked at all and unconditionally
- written if chunk registration is disabled. This is accomplished using
- the "Compress" command listed above. If the page *has* been registered
- then we check the entire chunk for zero. Only if the entire chunk is
- zero, then we send a compress command to zap the page on the other side.
-
-Versioning and Capabilities
-===========================
-Current version of the protocol is version #1.
-
-The same version applies to both for protocol traffic and capabilities
-negotiation. (i.e. There is only one version number that is referred to
-by all communication).
-
-librdmacm provides the user with a 'private data' area to be exchanged
-at connection-setup time before any infiniband traffic is generated.
-
-Header:
- * Version (protocol version validated before send/recv occurs),
- uint32, network byte order
- * Flags (bitwise OR of each capability),
- uint32, network byte order
-
-There is no data portion of this header right now, so there is
-no length field. The maximum size of the 'private data' section
-is only 192 bytes per the Infiniband specification, so it's not
-very useful for data anyway. This structure needs to remain small.
-
-This private data area is a convenient place to check for protocol
-versioning because the user does not need to register memory to
-transmit a few bytes of version information.
-
-This is also a convenient place to negotiate capabilities
-(like dynamic page registration).
-
-If the version is invalid, we throw an error.
-
-If the version is new, we only negotiate the capabilities that the
-requested version is able to perform and ignore the rest.
-
-Currently there is only one capability in Version #1: dynamic page registration
-
-Finally: Negotiation happens with the Flags field: If the primary-VM
-sets a flag, but the destination does not support this capability, it
-will return a zero-bit for that flag and the primary-VM will understand
-that as not being an available capability and will thus disable that
-capability on the primary-VM side.
-
-QEMUFileRDMA Interface:
-=======================
-
-QEMUFileRDMA introduces a couple of new functions:
-
-1. qemu_rdma_get_buffer() (QEMUFileOps rdma_read_ops)
-2. qemu_rdma_put_buffer() (QEMUFileOps rdma_write_ops)
-
-These two functions are very short and simply use the protocol
-describe above to deliver bytes without changing the upper-level
-users of QEMUFile that depend on a bytestream abstraction.
-
-Finally, how do we handoff the actual bytes to get_buffer()?
-
-Again, because we're trying to "fake" a bytestream abstraction
-using an analogy not unlike individual UDP frames, we have
-to hold on to the bytes received from control-channel's SEND
-messages in memory.
-
-Each time we receive a complete "QEMU File" control-channel
-message, the bytes from SEND are copied into a small local holding area.
-
-Then, we return the number of bytes requested by get_buffer()
-and leave the remaining bytes in the holding area until get_buffer()
-comes around for another pass.
-
-If the buffer is empty, then we follow the same steps
-listed above and issue another "QEMU File" protocol command,
-asking for a new SEND message to re-fill the buffer.
-
-Migration of VM's ram:
-====================
-
-At the beginning of the migration, (migration-rdma.c),
-the sender and the receiver populate the list of RAMBlocks
-to be registered with each other into a structure.
-Then, using the aforementioned protocol, they exchange a
-description of these blocks with each other, to be used later
-during the iteration of main memory. This description includes
-a list of all the RAMBlocks, their offsets and lengths, virtual
-addresses and possibly includes pre-registered RDMA keys in case dynamic
-page registration was disabled on the server-side, otherwise not.
-
-Main memory is not migrated with the aforementioned protocol,
-but is instead migrated with normal RDMA Write operations.
-
-Pages are migrated in "chunks" (hard-coded to 1 Megabyte right now).
-Chunk size is not dynamic, but it could be in a future implementation.
-There's nothing to indicate that this is useful right now.
-
-When a chunk is full (or a flush() occurs), the memory backed by
-the chunk is registered with librdmacm is pinned in memory on
-both sides using the aforementioned protocol.
-After pinning, an RDMA Write is generated and transmitted
-for the entire chunk.
-
-Chunks are also transmitted in batches: This means that we
-do not request that the hardware signal the completion queue
-for the completion of *every* chunk. The current batch size
-is about 64 chunks (corresponding to 64 MB of memory).
-Only the last chunk in a batch must be signaled.
-This helps keep everything as asynchronous as possible
-and helps keep the hardware busy performing RDMA operations.
-
-Error-handling:
-===============
-
-Infiniband has what is called a "Reliable, Connected"
-link (one of 4 choices). This is the mode in which
-we use for RDMA migration.
-
-If a *single* message fails,
-the decision is to abort the migration entirely and
-cleanup all the RDMA descriptors and unregister all
-the memory.
-
-After cleanup, the Virtual Machine is returned to normal
-operation the same way that would happen if the TCP
-socket is broken during a non-RDMA based migration.
-
-TODO:
-=====
-1. Currently, 'ulimit -l' mlock() limits as well as cgroups swap limits
- are not compatible with infiniband memory pinning and will result in
- an aborted migration (but with the source VM left unaffected).
-2. Use of the recent /proc/<pid>/pagemap would likely speed up
- the use of KSM and ballooning while using RDMA.
-3. Also, some form of balloon-device usage tracking would also
- help alleviate some issues.
-4. Use LRU to provide more fine-grained direction of UNREGISTER
- requests for unpinning memory in an overcommitted environment.
-5. Expose UNREGISTER support to the user by way of workload-specific
- hints about application behavior.
diff --git a/docs/system/device-url-syntax.rst.inc
b/docs/system/device-url-syntax.rst.inc
index 7dbc525fa8..43b5c2596b 100644
--- a/docs/system/device-url-syntax.rst.inc
+++ b/docs/system/device-url-syntax.rst.inc
@@ -87,8 +87,8 @@ These are specified using a special URL syntax.
``GlusterFS``
GlusterFS is a user space distributed file system. QEMU supports the
- use of GlusterFS volumes for hosting VM disk images using TCP, Unix
- Domain Sockets and RDMA transport protocols.
+ use of GlusterFS volumes for hosting VM disk images using TCP and Unix
+ Domain Sockets transport protocols.
Syntax for specifying a VM disk image on GlusterFS volume is
diff --git a/docs/system/loongarch/virt.rst b/docs/system/loongarch/virt.rst
index c37268b404..0a8e0766e4 100644
--- a/docs/system/loongarch/virt.rst
+++ b/docs/system/loongarch/virt.rst
@@ -39,7 +39,7 @@ can be accessed by following steps.
.. code-block:: bash
- ./configure --disable-rdma --disable-pvrdma --prefix=/usr \
+ ./configure --prefix=/usr \
--target-list="loongarch64-softmmu" \
--disable-libiscsi --disable-libnfs --disable-libpmem \
--disable-glusterfs --enable-libusb --enable-usb-redir \
diff --git a/docs/system/qemu-block-drivers.rst.inc
b/docs/system/qemu-block-drivers.rst.inc
index 105cb9679c..384e95ba76 100644
--- a/docs/system/qemu-block-drivers.rst.inc
+++ b/docs/system/qemu-block-drivers.rst.inc
@@ -737,7 +737,6 @@ Examples
|qemu_system| -drive
file=gluster+tcp://[1:2:3:4:5:6:7:8]:24007/testvol/dir/a.img
|qemu_system| -drive
file=gluster+tcp://server.domain.com:24007/testvol/dir/a.img
|qemu_system| -drive
file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket
- |qemu_system| -drive file=gluster+rdma://1.2.3.4:24007/testvol/a.img
|qemu_system| -drive
file=gluster://1.2.3.4/testvol/a.img,file.debug=9,file.logfile=/var/log/qemu-gluster.log
|qemu_system| 'json:{"driver":"qcow2",
"file":{"driver":"gluster",
diff --git a/meson.build b/meson.build
index c9c3217ba4..bd65abad13 100644
--- a/meson.build
+++ b/meson.build
@@ -1854,21 +1854,6 @@ if numa.found() and not cc.links('''
endif
endif
-rdma = not_found
-if not get_option('rdma').auto() or have_system
- libumad = cc.find_library('ibumad', required: get_option('rdma'))
- rdma_libs = [cc.find_library('rdmacm', has_headers: ['rdma/rdma_cma.h'],
- required: get_option('rdma')),
- cc.find_library('ibverbs', required: get_option('rdma')),
- libumad]
- rdma = declare_dependency(dependencies: rdma_libs)
- foreach lib: rdma_libs
- if not lib.found()
- rdma = not_found
- endif
- endforeach
-endif
-
cacard = not_found
if not get_option('smartcard').auto() or have_system
cacard = dependency('libcacard', required: get_option('smartcard'),
@@ -2246,7 +2231,6 @@ endif
config_host_data.set('CONFIG_OPENGL', opengl.found())
config_host_data.set('CONFIG_PLUGIN', get_option('plugins'))
config_host_data.set('CONFIG_RBD', rbd.found())
-config_host_data.set('CONFIG_RDMA', rdma.found())
config_host_data.set('CONFIG_RELOCATABLE', get_option('relocatable'))
config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack'))
config_host_data.set('CONFIG_SDL', sdl.found())
@@ -2399,12 +2383,6 @@ if rbd.found()
dependencies: rbd,
prefix: '#include <rbd/librbd.h>'))
endif
-if rdma.found()
- config_host_data.set('HAVE_IBV_ADVISE_MR',
- cc.has_function('ibv_advise_mr',
- dependencies: rdma,
- prefix: '#include
<infiniband/verbs.h>'))
-endif
have_asan_fiber = false
if get_option('sanitizers') and \
@@ -2829,37 +2807,6 @@ config_host_data.set('CONFIG_ARM_AES_BUILTIN',
cc.compiles('''
void foo(uint8x16_t *p) { *p = vaesmcq_u8(*p); }
'''))
-have_pvrdma = get_option('pvrdma') \
- .require(rdma.found(), error_message: 'PVRDMA requires OpenFabrics
libraries') \
- .require(cc.compiles(gnu_source_prefix + '''
- #include <sys/mman.h>
- int main(void)
- {
- char buf = 0;
- void *addr = &buf;
- addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
-
- return 0;
- }'''), error_message: 'PVRDMA requires mremap').allowed()
-
-if have_pvrdma
- config_host_data.set('LEGACY_RDMA_REG_MR', not cc.links('''
- #include <infiniband/verbs.h>
- int main(void)
- {
- struct ibv_mr *mr;
- struct ibv_pd *pd = NULL;
- size_t length = 10;
- uint64_t iova = 0;
- int access = 0;
- void *addr = NULL;
-
- mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
- ibv_dereg_mr(mr);
- return 0;
- }'''))
-endif
-
if get_option('membarrier').disabled()
have_membarrier = false
elif host_os == 'windows'
@@ -2993,7 +2940,6 @@ host_kconfig = \
(have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
(have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
(host_os == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
- (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
(multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
(vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : []) + \
(hv_balloon ? ['CONFIG_HV_BALLOON_POSSIBLE=y'] : [])
@@ -3357,8 +3303,6 @@ if have_system
'hw/pci',
'hw/pci-host',
'hw/ppc',
- 'hw/rdma',
- 'hw/rdma/vmw',
'hw/rtc',
'hw/s390x',
'hw/scsi',
@@ -4028,7 +3972,6 @@ if have_tools
}]
endforeach
- subdir('contrib/rdmacm-mux')
subdir('contrib/elf2dmp')
executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
@@ -4433,8 +4376,6 @@ summary_info += {'Multipath support': mpathpersist}
summary_info += {'Linux AIO support': libaio}
summary_info += {'Linux io_uring support': linux_io_uring}
summary_info += {'ATTR/XATTR support': libattr}
-summary_info += {'RDMA support': rdma}
-summary_info += {'PVRDMA support': have_pvrdma}
summary_info += {'fdt support': fdt_opt == 'disabled' ? false : fdt_opt}
summary_info += {'libcap-ng support': libcap_ng}
summary_info += {'bpf support': libbpf}
diff --git a/qapi/machine.json b/qapi/machine.json
index e8b60641f2..e9f0f0c49a 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -1737,23 +1737,6 @@
'returns': 'HumanReadableText',
'features': [ 'unstable' ] }
-##
-# @x-query-rdma:
-#
-# Query RDMA state
-#
-# Features:
-#
-# @unstable: This command is meant for debugging.
-#
-# Returns: RDMA state
-#
-# Since: 6.2
-##
-{ 'command': 'x-query-rdma',
- 'returns': 'HumanReadableText',
- 'features': [ 'unstable' ] }
-
##
# @x-query-roms:
#
diff --git a/qapi/migration.json b/qapi/migration.json
index 8c65b90328..9a56d403be 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -221,8 +221,8 @@
#
# @setup-time: amount of setup time in milliseconds *before* the
# iterations begin but *after* the QMP command is issued. This is
-# designed to provide an accounting of any activities (such as
-# RDMA pinning) which may be expensive, but do not actually occur
+# designed to provide an accounting of any activities which may be
+# expensive, but do not actually occur
# during the iterative migration rounds themselves. (since 1.6)
#
# @cpu-throttle-percentage: percentage of time guest cpus are being
@@ -430,10 +430,6 @@
# for certain work loads, by sending compressed difference of the
# pages
#
-# @rdma-pin-all: Controls whether or not the entire VM memory
-# footprint is mlock()'d on demand or all at once. Refer to
-# docs/rdma.txt for usage. Disabled by default. (since 2.0)
-#
# @zero-blocks: During storage migration encode blocks of zeroes
# efficiently. This essentially saves 1MB of zeroes per block on
# the wire. Enabling requires source and target VM to support
@@ -547,7 +543,7 @@
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
- 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
+ 'data': ['xbzrle', 'auto-converge', 'zero-blocks',
{ 'name': 'compress', 'features': [ 'deprecated' ] },
'events', 'postcopy-ram',
{ 'name': 'x-colo', 'features': [ 'unstable' ] },
@@ -606,7 +602,6 @@
# -> { "execute": "query-migrate-capabilities" }
# <- { "return": [
# {"state": false, "capability": "xbzrle"},
-# {"state": false, "capability": "rdma-pin-all"},
# {"state": false, "capability": "auto-converge"},
# {"state": false, "capability": "zero-blocks"},
# {"state": false, "capability": "compress"},
@@ -1654,14 +1649,12 @@
#
# @exec: Direct the migration stream to another process.
#
-# @rdma: Migrate via RDMA.
-#
# @file: Direct the migration stream to a file.
#
# Since: 8.2
##
{ 'enum': 'MigrationAddressType',
- 'data': [ 'socket', 'exec', 'rdma', 'file' ] }
+ 'data': [ 'socket', 'exec', 'file' ] }
##
# @FileMigrationArgs:
@@ -1701,7 +1694,6 @@
'data': {
'socket': 'SocketAddress',
'exec': 'MigrationExecCommand',
- 'rdma': 'InetSocketAddress',
'file': 'FileMigrationArgs' } }
##
@@ -1804,14 +1796,6 @@
# -> { "execute": "migrate",
# "arguments": {
# "channels": [ { "channel-type": "main",
-# "addr": { "transport": "rdma",
-# "host": "10.12.34.9",
-# "port": "1050" } } ] } }
-# <- { "return": {} }
-#
-# -> { "execute": "migrate",
-# "arguments": {
-# "channels": [ { "channel-type": "main",
# "addr": { "transport": "file",
# "filename": "/tmp/migfile",
# "offset": "0x1000" } } ] } }
@@ -1879,13 +1863,6 @@
# "/some/sock" ] } } ] } }
# <- { "return": {} }
#
-# -> { "execute": "migrate-incoming",
-# "arguments": {
-# "channels": [ { "channel-type": "main",
-# "addr": { "transport": "rdma",
-# "host": "10.12.34.9",
-# "port": "1050" } } ] } }
-# <- { "return": {} }
##
{ 'command': 'migrate-incoming',
'data': {'*uri': 'str',
diff --git a/qapi/qapi-schema.json b/qapi/qapi-schema.json
index 8304d45625..5e33da7228 100644
--- a/qapi/qapi-schema.json
+++ b/qapi/qapi-schema.json
@@ -54,7 +54,6 @@
{ 'include': 'dump.json' }
{ 'include': 'net.json' }
{ 'include': 'ebpf.json' }
-{ 'include': 'rdma.json' }
{ 'include': 'rocker.json' }
{ 'include': 'tpm.json' }
{ 'include': 'ui.json' }
diff --git a/qapi/rdma.json b/qapi/rdma.json
deleted file mode 100644
index 195c001850..0000000000
--- a/qapi/rdma.json
+++ /dev/null
@@ -1,38 +0,0 @@
-# -*- Mode: Python -*-
-# vim: filetype=python
-#
-
-##
-# = RDMA device
-##
-
-##
-# @RDMA_GID_STATUS_CHANGED:
-#
-# Emitted when guest driver adds/deletes GID to/from device
-#
-# @netdev: RoCE Network Device name
-#
-# @gid-status: Add or delete indication
-#
-# @subnet-prefix: Subnet Prefix
-#
-# @interface-id: Interface ID
-#
-# Since: 4.0
-#
-# Example:
-#
-# <- {"timestamp": {"seconds": 1541579657, "microseconds": 986760},
-# "event": "RDMA_GID_STATUS_CHANGED",
-# "data":
-# {"netdev": "bridge0",
-# "interface-id": 15880512517475447892,
-# "gid-status": true,
-# "subnet-prefix": 33022}}
-##
-{ 'event': 'RDMA_GID_STATUS_CHANGED',
- 'data': { 'netdev' : 'str',
- 'gid-status' : 'bool',
- 'subnet-prefix' : 'uint64',
- 'interface-id' : 'uint64' } }
diff --git a/contrib/rdmacm-mux/rdmacm-mux.h b/contrib/rdmacm-mux/rdmacm-mux.h
deleted file mode 100644
index 07a4722913..0000000000
--- a/contrib/rdmacm-mux/rdmacm-mux.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * QEMU paravirtual RDMA - rdmacm-mux declarations
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMACM_MUX_H
-#define RDMACM_MUX_H
-
-#include "linux/if.h"
-#include <infiniband/verbs.h>
-#include <infiniband/umad.h>
-#include <rdma/rdma_user_cm.h>
-
-typedef enum RdmaCmMuxMsgType {
- RDMACM_MUX_MSG_TYPE_REQ = 0,
- RDMACM_MUX_MSG_TYPE_RESP = 1,
-} RdmaCmMuxMsgType;
-
-typedef enum RdmaCmMuxOpCode {
- RDMACM_MUX_OP_CODE_REG = 0,
- RDMACM_MUX_OP_CODE_UNREG = 1,
- RDMACM_MUX_OP_CODE_MAD = 2,
-} RdmaCmMuxOpCode;
-
-typedef enum RdmaCmMuxErrCode {
- RDMACM_MUX_ERR_CODE_OK = 0,
- RDMACM_MUX_ERR_CODE_EINVAL = 1,
- RDMACM_MUX_ERR_CODE_EEXIST = 2,
- RDMACM_MUX_ERR_CODE_EACCES = 3,
- RDMACM_MUX_ERR_CODE_ENOTFOUND = 4,
-} RdmaCmMuxErrCode;
-
-typedef struct RdmaCmMuxHdr {
- RdmaCmMuxMsgType msg_type;
- RdmaCmMuxOpCode op_code;
- union ibv_gid sgid;
- RdmaCmMuxErrCode err_code;
-} RdmaCmUHdr;
-
-typedef struct RdmaCmUMad {
- struct ib_user_mad hdr;
- char mad[RDMA_MAX_PRIVATE_DATA];
-} RdmaCmUMad;
-
-typedef struct RdmaCmMuxMsg {
- RdmaCmUHdr hdr;
- int umad_len;
- RdmaCmUMad umad;
-} RdmaCmMuxMsg;
-
-#endif
diff --git a/hw/rdma/rdma_backend.h b/hw/rdma/rdma_backend.h
deleted file mode 100644
index 225af481e0..0000000000
--- a/hw/rdma/rdma_backend.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * RDMA device: Definitions of Backend Device functions
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_BACKEND_H
-#define RDMA_BACKEND_H
-
-#include "qapi/error.h"
-#include "chardev/char-fe.h"
-
-#include "rdma_rm_defs.h"
-#include "rdma_backend_defs.h"
-
-/* Vendor Errors */
-#define VENDOR_ERR_FAIL_BACKEND 0x201
-#define VENDOR_ERR_TOO_MANY_SGES 0x202
-#define VENDOR_ERR_NOMEM 0x203
-#define VENDOR_ERR_QP0 0x204
-#define VENDOR_ERR_INV_NUM_SGE 0x205
-#define VENDOR_ERR_MAD_SEND 0x206
-#define VENDOR_ERR_INVLKEY 0x207
-#define VENDOR_ERR_MR_SMALL 0x208
-#define VENDOR_ERR_INV_MAD_BUFF 0x209
-#define VENDOR_ERR_INV_GID_IDX 0x210
-
-/* Add definition for QP0 and QP1 as there is no userspace enums for them */
-enum ibv_special_qp_type {
- IBV_QPT_SMI = 0,
- IBV_QPT_GSI = 1,
-};
-
-static inline uint32_t rdma_backend_qpn(const RdmaBackendQP *qp)
-{
- return qp->ibqp ? qp->ibqp->qp_num : 1;
-}
-
-static inline uint32_t rdma_backend_mr_lkey(const RdmaBackendMR *mr)
-{
- return mr->ibmr ? mr->ibmr->lkey : 0;
-}
-
-static inline uint32_t rdma_backend_mr_rkey(const RdmaBackendMR *mr)
-{
- return mr->ibmr ? mr->ibmr->rkey : 0;
-}
-
-int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev,
- RdmaDeviceResources *rdma_dev_res,
- const char *backend_device_name, uint8_t port_num,
- struct ibv_device_attr *dev_attr,
- CharBackend *mad_chr_be);
-void rdma_backend_fini(RdmaBackendDev *backend_dev);
-int rdma_backend_add_gid(RdmaBackendDev *backend_dev, const char *ifname,
- union ibv_gid *gid);
-int rdma_backend_del_gid(RdmaBackendDev *backend_dev, const char *ifname,
- union ibv_gid *gid);
-int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev,
- union ibv_gid *gid);
-void rdma_backend_start(RdmaBackendDev *backend_dev);
-void rdma_backend_stop(RdmaBackendDev *backend_dev);
-void rdma_backend_register_comp_handler(void (*handler)(void *ctx,
- struct ibv_wc *wc));
-void rdma_backend_unregister_comp_handler(void);
-
-int rdma_backend_query_port(RdmaBackendDev *backend_dev,
- struct ibv_port_attr *port_attr);
-int rdma_backend_create_pd(RdmaBackendDev *backend_dev, RdmaBackendPD *pd);
-void rdma_backend_destroy_pd(RdmaBackendPD *pd);
-
-int rdma_backend_create_mr(RdmaBackendMR *mr, RdmaBackendPD *pd, void *addr,
- size_t length, uint64_t guest_start, int access);
-void rdma_backend_destroy_mr(RdmaBackendMR *mr);
-
-int rdma_backend_create_cq(RdmaBackendDev *backend_dev, RdmaBackendCQ *cq,
- int cqe);
-void rdma_backend_destroy_cq(RdmaBackendCQ *cq);
-void rdma_backend_poll_cq(RdmaDeviceResources *rdma_dev_res, RdmaBackendCQ
*cq);
-
-int rdma_backend_create_qp(RdmaBackendQP *qp, uint8_t qp_type,
- RdmaBackendPD *pd, RdmaBackendCQ *scq,
- RdmaBackendCQ *rcq, RdmaBackendSRQ *srq,
- uint32_t max_send_wr, uint32_t max_recv_wr,
- uint32_t max_send_sge, uint32_t max_recv_sge);
-int rdma_backend_qp_state_init(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
- uint8_t qp_type, uint32_t qkey);
-int rdma_backend_qp_state_rtr(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
- uint8_t qp_type, uint8_t sgid_idx,
- union ibv_gid *dgid, uint32_t dqpn,
- uint32_t rq_psn, uint32_t qkey, bool use_qkey);
-int rdma_backend_qp_state_rts(RdmaBackendQP *qp, uint8_t qp_type,
- uint32_t sq_psn, uint32_t qkey, bool use_qkey);
-int rdma_backend_query_qp(RdmaBackendQP *qp, struct ibv_qp_attr *attr,
- int attr_mask, struct ibv_qp_init_attr *init_attr);
-void rdma_backend_destroy_qp(RdmaBackendQP *qp, RdmaDeviceResources *dev_res);
-
-void rdma_backend_post_send(RdmaBackendDev *backend_dev,
- RdmaBackendQP *qp, uint8_t qp_type,
- struct ibv_sge *sge, uint32_t num_sge,
- uint8_t sgid_idx, union ibv_gid *sgid,
- union ibv_gid *dgid, uint32_t dqpn, uint32_t dqkey,
- void *ctx);
-void rdma_backend_post_recv(RdmaBackendDev *backend_dev,
- RdmaBackendQP *qp, uint8_t qp_type,
- struct ibv_sge *sge, uint32_t num_sge, void *ctx);
-
-int rdma_backend_create_srq(RdmaBackendSRQ *srq, RdmaBackendPD *pd,
- uint32_t max_wr, uint32_t max_sge,
- uint32_t srq_limit);
-int rdma_backend_query_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr);
-int rdma_backend_modify_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr,
- int srq_attr_mask);
-void rdma_backend_destroy_srq(RdmaBackendSRQ *srq,
- RdmaDeviceResources *dev_res);
-void rdma_backend_post_srq_recv(RdmaBackendDev *backend_dev,
- RdmaBackendSRQ *srq, struct ibv_sge *sge,
- uint32_t num_sge, void *ctx);
-
-#endif
diff --git a/hw/rdma/rdma_backend_defs.h b/hw/rdma/rdma_backend_defs.h
deleted file mode 100644
index 4e6c0ad695..0000000000
--- a/hw/rdma/rdma_backend_defs.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * RDMA device: Definitions of Backend Device structures
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_BACKEND_DEFS_H
-#define RDMA_BACKEND_DEFS_H
-
-#include "qemu/thread.h"
-#include "chardev/char-fe.h"
-#include <infiniband/verbs.h>
-#include "contrib/rdmacm-mux/rdmacm-mux.h"
-#include "rdma_utils.h"
-
-typedef struct RdmaDeviceResources RdmaDeviceResources;
-
-typedef struct RdmaBackendThread {
- QemuThread thread;
- bool run; /* Set by thread manager to let thread know it should exit */
- bool is_running; /* Set by the thread to report its status */
-} RdmaBackendThread;
-
-typedef struct RdmaCmMux {
- CharBackend *chr_be;
- int can_receive;
-} RdmaCmMux;
-
-typedef struct RdmaBackendDev {
- RdmaBackendThread comp_thread;
- PCIDevice *dev;
- RdmaDeviceResources *rdma_dev_res;
- struct ibv_device *ib_dev;
- struct ibv_context *context;
- struct ibv_comp_channel *channel;
- uint8_t port_num;
- RdmaProtectedGQueue recv_mads_list;
- RdmaCmMux rdmacm_mux;
-} RdmaBackendDev;
-
-typedef struct RdmaBackendPD {
- struct ibv_pd *ibpd;
-} RdmaBackendPD;
-
-typedef struct RdmaBackendMR {
- struct ibv_pd *ibpd;
- struct ibv_mr *ibmr;
-} RdmaBackendMR;
-
-typedef struct RdmaBackendCQ {
- RdmaBackendDev *backend_dev;
- struct ibv_cq *ibcq;
-} RdmaBackendCQ;
-
-typedef struct RdmaBackendQP {
- struct ibv_pd *ibpd;
- struct ibv_qp *ibqp;
- uint8_t sgid_idx;
- RdmaProtectedGSList cqe_ctx_list;
-} RdmaBackendQP;
-
-typedef struct RdmaBackendSRQ {
- struct ibv_srq *ibsrq;
- RdmaProtectedGSList cqe_ctx_list;
-} RdmaBackendSRQ;
-
-#endif
diff --git a/hw/rdma/rdma_rm.h b/hw/rdma/rdma_rm.h
deleted file mode 100644
index d69a917795..0000000000
--- a/hw/rdma/rdma_rm.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * RDMA device: Definitions of Resource Manager functions
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_RM_H
-#define RDMA_RM_H
-
-#include "qapi/error.h"
-#include "rdma_backend_defs.h"
-#include "rdma_rm_defs.h"
-
-int rdma_rm_init(RdmaDeviceResources *dev_res,
- struct ibv_device_attr *dev_attr);
-void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname);
-
-int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t *pd_handle, uint32_t ctx_handle);
-RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
-void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle);
-
-int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint64_t guest_start, uint64_t guest_length,
- void *host_virt, int access_flags, uint32_t *mr_handle,
- uint32_t *lkey, uint32_t *rkey);
-RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
-void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle);
-
-int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn,
- uint32_t *uc_handle);
-RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
-void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle);
-
-int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t cqe, uint32_t *cq_handle, void *opaque);
-RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
-void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle,
- bool notify);
-void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle);
-
-int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint8_t qp_type, uint32_t max_send_wr,
- uint32_t max_send_sge, uint32_t send_cq_handle,
- uint32_t max_recv_wr, uint32_t max_recv_sge,
- uint32_t recv_cq_handle, void *opaque, uint32_t *qpn,
- uint8_t is_srq, uint32_t srq_handle);
-RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn);
-int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev
*backend_dev,
- uint32_t qp_handle, uint32_t attr_mask, uint8_t sgid_idx,
- union ibv_gid *dgid, uint32_t dqpn,
- enum ibv_qp_state qp_state, uint32_t qkey,
- uint32_t rq_psn, uint32_t sq_psn);
-int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t qp_handle, struct ibv_qp_attr *attr,
- int attr_mask, struct ibv_qp_init_attr *init_attr);
-void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle);
-
-RdmaRmSRQ *rdma_rm_get_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle);
-int rdma_rm_alloc_srq(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint32_t max_wr, uint32_t max_sge, uint32_t srq_limit,
- uint32_t *srq_handle, void *opaque);
-int rdma_rm_query_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
- struct ibv_srq_attr *srq_attr);
-int rdma_rm_modify_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
- struct ibv_srq_attr *srq_attr, int srq_attr_mask);
-void rdma_rm_dealloc_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle);
-
-int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id,
- void *ctx);
-void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id);
-void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t
cqe_ctx_id);
-
-int rdma_rm_add_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname, union ibv_gid *gid, int gid_idx);
-int rdma_rm_del_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname, int gid_idx);
-int rdma_rm_get_backend_gid_index(RdmaDeviceResources *dev_res,
- RdmaBackendDev *backend_dev, int sgid_idx);
-static inline union ibv_gid *rdma_rm_get_gid(RdmaDeviceResources *dev_res,
- int sgid_idx)
-{
- return &dev_res->port.gid_tbl[sgid_idx].gid;
-}
-void rdma_format_device_counters(RdmaDeviceResources *dev_res, GString *buf);
-
-#endif
diff --git a/hw/rdma/rdma_rm_defs.h b/hw/rdma/rdma_rm_defs.h
deleted file mode 100644
index 534f2f74d3..0000000000
--- a/hw/rdma/rdma_rm_defs.h
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * RDMA device: Definitions of Resource Manager structures
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_RM_DEFS_H
-#define RDMA_RM_DEFS_H
-
-#include "rdma_backend_defs.h"
-
-#define MAX_PORTS 1 /* Do not change - we support only one port */
-#define MAX_PORT_GIDS 255
-#define MAX_GIDS MAX_PORT_GIDS
-#define MAX_PORT_PKEYS 1
-#define MAX_PKEYS MAX_PORT_PKEYS
-#define MAX_UCS 512
-#define MAX_MR_SIZE (1UL << 27)
-#define MAX_QP 1024
-#define MAX_SGE 4
-#define MAX_CQ 2048
-#define MAX_MR 1024
-#define MAX_PD 1024
-#define MAX_QP_RD_ATOM 16
-#define MAX_QP_INIT_RD_ATOM 16
-#define MAX_AH 64
-#define MAX_SRQ 512
-
-#define MAX_RM_TBL_NAME 16
-#define MAX_CONSEQ_EMPTY_POLL_CQ 4096 /* considered as error above this */
-
-typedef struct RdmaRmResTbl {
- char name[MAX_RM_TBL_NAME];
- QemuMutex lock;
- unsigned long *bitmap;
- size_t tbl_sz;
- size_t res_sz;
- void *tbl;
- uint32_t used; /* number of used entries in the table */
-} RdmaRmResTbl;
-
-typedef struct RdmaRmPD {
- RdmaBackendPD backend_pd;
- uint32_t ctx_handle;
-} RdmaRmPD;
-
-typedef enum CQNotificationType {
- CNT_CLEAR,
- CNT_ARM,
- CNT_SET,
-} CQNotificationType;
-
-typedef struct RdmaRmCQ {
- RdmaBackendCQ backend_cq;
- void *opaque;
- CQNotificationType notify;
-} RdmaRmCQ;
-
-/* MR (DMA region) */
-typedef struct RdmaRmMR {
- RdmaBackendMR backend_mr;
- void *virt;
- uint64_t start;
- size_t length;
- uint32_t pd_handle;
- uint32_t lkey;
- uint32_t rkey;
-} RdmaRmMR;
-
-typedef struct RdmaRmUC {
- uint64_t uc_handle;
-} RdmaRmUC;
-
-typedef struct RdmaRmQP {
- RdmaBackendQP backend_qp;
- void *opaque;
- uint32_t qp_type;
- uint32_t qpn;
- uint32_t send_cq_handle;
- uint32_t recv_cq_handle;
- enum ibv_qp_state qp_state;
- uint8_t is_srq;
-} RdmaRmQP;
-
-typedef struct RdmaRmSRQ {
- RdmaBackendSRQ backend_srq;
- uint32_t recv_cq_handle;
- void *opaque;
-} RdmaRmSRQ;
-
-typedef struct RdmaRmGid {
- union ibv_gid gid;
- int backend_gid_index;
-} RdmaRmGid;
-
-typedef struct RdmaRmPort {
- RdmaRmGid gid_tbl[MAX_PORT_GIDS];
- enum ibv_port_state state;
-} RdmaRmPort;
-
-typedef struct RdmaRmStats {
- uint64_t tx;
- uint64_t tx_len;
- uint64_t tx_err;
- uint64_t rx_bufs;
- uint64_t rx_bufs_len;
- uint64_t rx_bufs_err;
- uint64_t rx_srq;
- uint64_t completions;
- uint64_t mad_tx;
- uint64_t mad_tx_err;
- uint64_t mad_rx;
- uint64_t mad_rx_err;
- uint64_t mad_rx_bufs;
- uint64_t mad_rx_bufs_err;
- uint64_t poll_cq_from_bk;
- uint64_t poll_cq_from_guest;
- uint64_t poll_cq_from_guest_empty;
- uint64_t poll_cq_ppoll_to;
- uint32_t missing_cqe;
-} RdmaRmStats;
-
-struct RdmaDeviceResources {
- RdmaRmPort port;
- RdmaRmResTbl pd_tbl;
- RdmaRmResTbl mr_tbl;
- RdmaRmResTbl uc_tbl;
- RdmaRmResTbl qp_tbl;
- RdmaRmResTbl cq_tbl;
- RdmaRmResTbl cqe_ctx_tbl;
- RdmaRmResTbl srq_tbl;
- GHashTable *qp_hash; /* Keeps mapping between real and emulated */
- QemuMutex lock;
- RdmaRmStats stats;
-};
-
-#endif
diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h
deleted file mode 100644
index 54e4f56edd..0000000000
--- a/hw/rdma/rdma_utils.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * RDMA device: Debug utilities
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_UTILS_H
-#define RDMA_UTILS_H
-
-#include "qemu/error-report.h"
-#include "sysemu/dma.h"
-
-#define rdma_error_report(fmt, ...) \
- error_report("%s: " fmt, "rdma", ## __VA_ARGS__)
-#define rdma_warn_report(fmt, ...) \
- warn_report("%s: " fmt, "rdma", ## __VA_ARGS__)
-#define rdma_info_report(fmt, ...) \
- info_report("%s: " fmt, "rdma", ## __VA_ARGS__)
-
-typedef struct RdmaProtectedGQueue {
- QemuMutex lock;
- GQueue *list;
-} RdmaProtectedGQueue;
-
-typedef struct RdmaProtectedGSList {
- QemuMutex lock;
- GSList *list;
-} RdmaProtectedGSList;
-
-void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t len);
-void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len);
-void rdma_protected_gqueue_init(RdmaProtectedGQueue *list);
-void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list);
-void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list,
- int64_t value);
-int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list);
-void rdma_protected_gslist_init(RdmaProtectedGSList *list);
-void rdma_protected_gslist_destroy(RdmaProtectedGSList *list);
-void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list,
- int32_t value);
-void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list,
- int32_t value);
-
-static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr)
-{
- memcpy(eui, addr, 3);
- eui[3] = 0xFF;
- eui[4] = 0xFE;
- memcpy(eui + 5, addr + 3, 3);
- eui[0] ^= 2;
-}
-
-#endif
diff --git a/hw/rdma/trace.h b/hw/rdma/trace.h
deleted file mode 100644
index b3fa8ebc51..0000000000
--- a/hw/rdma/trace.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "trace/trace-hw_rdma.h"
diff --git a/hw/rdma/vmw/pvrdma.h b/hw/rdma/vmw/pvrdma.h
deleted file mode 100644
index 4cbc10c980..0000000000
--- a/hw/rdma/vmw/pvrdma.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * QEMU VMWARE paravirtual RDMA device definitions
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef PVRDMA_PVRDMA_H
-#define PVRDMA_PVRDMA_H
-
-#include "qemu/units.h"
-#include "qemu/notify.h"
-#include "hw/pci/msix.h"
-#include "hw/pci/pci_device.h"
-#include "chardev/char-fe.h"
-#include "hw/net/vmxnet3_defs.h"
-
-#include "../rdma_backend_defs.h"
-#include "../rdma_rm_defs.h"
-
-#include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h"
-#include "pvrdma_dev_ring.h"
-#include "qom/object.h"
-
-/* BARs */
-#define RDMA_MSIX_BAR_IDX 0
-#define RDMA_REG_BAR_IDX 1
-#define RDMA_UAR_BAR_IDX 2
-#define RDMA_BAR0_MSIX_SIZE (16 * KiB)
-#define RDMA_BAR1_REGS_SIZE 64
-#define RDMA_BAR2_UAR_SIZE (0x1000 * MAX_UCS) /* each uc gets page */
-
-/* MSIX */
-#define RDMA_MAX_INTRS 3
-#define RDMA_MSIX_TABLE 0x0000
-#define RDMA_MSIX_PBA 0x2000
-
-/* Interrupts Vectors */
-#define INTR_VEC_CMD_RING 0
-#define INTR_VEC_CMD_ASYNC_EVENTS 1
-#define INTR_VEC_CMD_COMPLETION_Q 2
-
-/* HW attributes */
-#define PVRDMA_HW_NAME "pvrdma"
-#define PVRDMA_HW_VERSION 17
-#define PVRDMA_FW_VERSION 14
-
-/* Some defaults */
-#define PVRDMA_PKEY 0xFFFF
-
-typedef struct DSRInfo {
- dma_addr_t dma;
- struct pvrdma_device_shared_region *dsr;
-
- union pvrdma_cmd_req *req;
- union pvrdma_cmd_resp *rsp;
-
- PvrdmaRingState *async_ring_state;
- PvrdmaRing async;
-
- PvrdmaRingState *cq_ring_state;
- PvrdmaRing cq;
-} DSRInfo;
-
-typedef struct PVRDMADevStats {
- uint64_t commands;
- uint64_t regs_reads;
- uint64_t regs_writes;
- uint64_t uar_writes;
- uint64_t interrupts;
-} PVRDMADevStats;
-
-struct PVRDMADev {
- PCIDevice parent_obj;
- MemoryRegion msix;
- MemoryRegion regs;
- uint32_t regs_data[RDMA_BAR1_REGS_SIZE];
- MemoryRegion uar;
- uint32_t uar_data[RDMA_BAR2_UAR_SIZE];
- DSRInfo dsr_info;
- int interrupt_mask;
- struct ibv_device_attr dev_attr;
- uint64_t node_guid;
- char *backend_eth_device_name;
- char *backend_device_name;
- uint8_t backend_port_num;
- RdmaBackendDev backend_dev;
- RdmaDeviceResources rdma_dev_res;
- CharBackend mad_chr;
- VMXNET3State *func0;
- Notifier shutdown_notifier;
- PVRDMADevStats stats;
-};
-typedef struct PVRDMADev PVRDMADev;
-DECLARE_INSTANCE_CHECKER(PVRDMADev, PVRDMA_DEV,
- PVRDMA_HW_NAME)
-
-static inline int get_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t *val)
-{
- int idx = addr >> 2;
-
- if (idx >= RDMA_BAR1_REGS_SIZE) {
- return -EINVAL;
- }
-
- *val = dev->regs_data[idx];
-
- return 0;
-}
-
-static inline int set_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t val)
-{
- int idx = addr >> 2;
-
- if (idx >= RDMA_BAR1_REGS_SIZE) {
- return -EINVAL;
- }
-
- dev->regs_data[idx] = val;
-
- return 0;
-}
-
-static inline void post_interrupt(PVRDMADev *dev, unsigned vector)
-{
- PCIDevice *pci_dev = PCI_DEVICE(dev);
-
- if (likely(!dev->interrupt_mask)) {
- dev->stats.interrupts++;
- msix_notify(pci_dev, vector);
- }
-}
-
-int pvrdma_exec_cmd(PVRDMADev *dev);
-
-#endif
diff --git a/hw/rdma/vmw/pvrdma_dev_ring.h b/hw/rdma/vmw/pvrdma_dev_ring.h
deleted file mode 100644
index d231588ce0..0000000000
--- a/hw/rdma/vmw/pvrdma_dev_ring.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * QEMU VMWARE paravirtual RDMA ring utilities
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef PVRDMA_DEV_RING_H
-#define PVRDMA_DEV_RING_H
-
-
-#define MAX_RING_NAME_SZ 32
-
-typedef struct PvrdmaRingState {
- int prod_tail; /* producer tail */
- int cons_head; /* consumer head */
-} PvrdmaRingState;
-
-typedef struct PvrdmaRing {
- char name[MAX_RING_NAME_SZ];
- PCIDevice *dev;
- uint32_t max_elems;
- size_t elem_sz;
- PvrdmaRingState *ring_state; /* used only for unmap */
- int npages;
- void **pages;
-} PvrdmaRing;
-
-int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev,
- PvrdmaRingState *ring_state, uint32_t max_elems,
- size_t elem_sz, dma_addr_t *tbl, uint32_t npages);
-void *pvrdma_ring_next_elem_read(PvrdmaRing *ring);
-void pvrdma_ring_read_inc(PvrdmaRing *ring);
-void *pvrdma_ring_next_elem_write(PvrdmaRing *ring);
-void pvrdma_ring_write_inc(PvrdmaRing *ring);
-void pvrdma_ring_free(PvrdmaRing *ring);
-
-#endif
diff --git a/hw/rdma/vmw/pvrdma_qp_ops.h b/hw/rdma/vmw/pvrdma_qp_ops.h
deleted file mode 100644
index bf2b15c5ce..0000000000
--- a/hw/rdma/vmw/pvrdma_qp_ops.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * QEMU VMWARE paravirtual RDMA QP Operations
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef PVRDMA_QP_OPS_H
-#define PVRDMA_QP_OPS_H
-
-#include "pvrdma.h"
-
-int pvrdma_qp_ops_init(void);
-void pvrdma_qp_ops_fini(void);
-void pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle);
-void pvrdma_qp_recv(PVRDMADev *dev, uint32_t qp_handle);
-void pvrdma_srq_recv(PVRDMADev *dev, uint32_t srq_handle);
-void pvrdma_cq_poll(RdmaDeviceResources *dev_res, uint32_t cq_handle);
-
-#endif
diff --git a/hw/rdma/vmw/trace.h b/hw/rdma/vmw/trace.h
deleted file mode 100644
index 3ebc9fb7ad..0000000000
--- a/hw/rdma/vmw/trace.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "trace/trace-hw_rdma_vmw.h"
diff --git a/include/hw/rdma/rdma.h b/include/hw/rdma/rdma.h
deleted file mode 100644
index 80b2e531c4..0000000000
--- a/include/hw/rdma/rdma.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * RDMA device interface
- *
- * Copyright (C) 2019 Oracle
- * Copyright (C) 2019 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#ifndef RDMA_H
-#define RDMA_H
-
-#include "qom/object.h"
-
-#define INTERFACE_RDMA_PROVIDER "rdma"
-
-typedef struct RdmaProviderClass RdmaProviderClass;
-DECLARE_CLASS_CHECKERS(RdmaProviderClass, RDMA_PROVIDER,
- INTERFACE_RDMA_PROVIDER)
-#define RDMA_PROVIDER(obj) \
- INTERFACE_CHECK(RdmaProvider, (obj), \
- INTERFACE_RDMA_PROVIDER)
-
-typedef struct RdmaProvider RdmaProvider;
-
-struct RdmaProviderClass {
- InterfaceClass parent;
-
- void (*format_statistics)(RdmaProvider *obj, GString *buf);
-};
-
-#endif
diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
index 13f9a2dedb..f4cf8f6717 100644
--- a/include/monitor/hmp.h
+++ b/include/monitor/hmp.h
@@ -37,7 +37,6 @@ void hmp_info_spice(Monitor *mon, const QDict *qdict);
void hmp_info_balloon(Monitor *mon, const QDict *qdict);
void hmp_info_irq(Monitor *mon, const QDict *qdict);
void hmp_info_pic(Monitor *mon, const QDict *qdict);
-void hmp_info_rdma(Monitor *mon, const QDict *qdict);
void hmp_info_pci(Monitor *mon, const QDict *qdict);
void hmp_info_tpm(Monitor *mon, const QDict *qdict);
void hmp_info_iothreads(Monitor *mon, const QDict *qdict);
diff --git
a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
b/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
deleted file mode 100644
index a5a1c8234e..0000000000
--- a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
+++ /dev/null
@@ -1,685 +0,0 @@
-/*
- * Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of EITHER the GNU General Public License
- * version 2 as published by the Free Software Foundation or the BSD
- * 2-Clause License. This program is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License version 2 for more details at
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program available in the file COPYING in the main
- * directory of this source tree.
- *
- * The BSD 2-Clause License
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __PVRDMA_DEV_API_H__
-#define __PVRDMA_DEV_API_H__
-
-#include "standard-headers/linux/types.h"
-
-#include "pvrdma_verbs.h"
-
-/*
- * PVRDMA version macros. Some new features require updates to PVRDMA_VERSION.
- * These macros allow us to check for different features if necessary.
- */
-
-#define PVRDMA_ROCEV1_VERSION 17
-#define PVRDMA_ROCEV2_VERSION 18
-#define PVRDMA_PPN64_VERSION 19
-#define PVRDMA_QPHANDLE_VERSION 20
-#define PVRDMA_VERSION PVRDMA_QPHANDLE_VERSION
-
-#define PVRDMA_BOARD_ID 1
-#define PVRDMA_REV_ID 1
-
-/*
- * Masks and accessors for page directory, which is a two-level lookup:
- * page directory -> page table -> page. Only one directory for now, but we
- * could expand that easily. 9 bits for tables, 9 bits for pages, gives one
- * gigabyte for memory regions and so forth.
- */
-
-#define PVRDMA_PDIR_SHIFT 18
-#define PVRDMA_PTABLE_SHIFT 9
-#define PVRDMA_PAGE_DIR_DIR(x) (((x) >> PVRDMA_PDIR_SHIFT) & 0x1)
-#define PVRDMA_PAGE_DIR_TABLE(x) (((x) >> PVRDMA_PTABLE_SHIFT) & 0x1ff)
-#define PVRDMA_PAGE_DIR_PAGE(x) ((x) & 0x1ff)
-#define PVRDMA_PAGE_DIR_MAX_PAGES (1 * 512 * 512)
-#define PVRDMA_MAX_FAST_REG_PAGES 128
-
-/*
- * Max MSI-X vectors.
- */
-
-#define PVRDMA_MAX_INTERRUPTS 3
-
-/* Register offsets within PCI resource on BAR1. */
-#define PVRDMA_REG_VERSION 0x00 /* R: Version of device. */
-#define PVRDMA_REG_DSRLOW 0x04 /* W: Device shared region low PA. */
-#define PVRDMA_REG_DSRHIGH 0x08 /* W: Device shared region high PA. */
-#define PVRDMA_REG_CTL 0x0c /* W: PVRDMA_DEVICE_CTL */
-#define PVRDMA_REG_REQUEST 0x10 /* W: Indicate device request. */
-#define PVRDMA_REG_ERR 0x14 /* R: Device error. */
-#define PVRDMA_REG_ICR 0x18 /* R: Interrupt cause. */
-#define PVRDMA_REG_IMR 0x1c /* R/W: Interrupt mask. */
-#define PVRDMA_REG_MACL 0x20 /* R/W: MAC address low. */
-#define PVRDMA_REG_MACH 0x24 /* R/W: MAC address high. */
-
-/* Object flags. */
-#define PVRDMA_CQ_FLAG_ARMED_SOL BIT(0) /* Armed for solicited-only. */
-#define PVRDMA_CQ_FLAG_ARMED BIT(1) /* Armed. */
-#define PVRDMA_MR_FLAG_DMA BIT(0) /* DMA region. */
-#define PVRDMA_MR_FLAG_FRMR BIT(1) /* Fast reg memory region. */
-
-/*
- * Atomic operation capability (masked versions are extended atomic
- * operations.
- */
-
-#define PVRDMA_ATOMIC_OP_COMP_SWAP BIT(0) /* Compare and swap. */
-#define PVRDMA_ATOMIC_OP_FETCH_ADD BIT(1) /* Fetch and add. */
-#define PVRDMA_ATOMIC_OP_MASK_COMP_SWAP BIT(2) /* Masked compare and
swap. */
-#define PVRDMA_ATOMIC_OP_MASK_FETCH_ADD BIT(3) /* Masked fetch and
add. */
-
-/*
- * Base Memory Management Extension flags to support Fast Reg Memory Regions
- * and Fast Reg Work Requests. Each flag represents a verb operation and we
- * must support all of them to qualify for the BMME device cap.
- */
-
-#define PVRDMA_BMME_FLAG_LOCAL_INV BIT(0) /* Local Invalidate. */
-#define PVRDMA_BMME_FLAG_REMOTE_INV BIT(1) /* Remote Invalidate. */
-#define PVRDMA_BMME_FLAG_FAST_REG_WR BIT(2) /* Fast Reg Work Request. */
-
-/*
- * GID types. The interpretation of the gid_types bit field in the device
- * capabilities will depend on the device mode. For now, the device only
- * supports RoCE as mode, so only the different GID types for RoCE are
- * defined.
- */
-
-#define PVRDMA_GID_TYPE_FLAG_ROCE_V1 BIT(0)
-#define PVRDMA_GID_TYPE_FLAG_ROCE_V2 BIT(1)
-
-/*
- * Version checks. This checks whether each version supports specific
- * capabilities from the device.
- */
-
-#define PVRDMA_IS_VERSION17(_dev) \
- (_dev->dsr_version == PVRDMA_ROCEV1_VERSION && \
- _dev->dsr->caps.gid_types == PVRDMA_GID_TYPE_FLAG_ROCE_V1)
-
-#define PVRDMA_IS_VERSION18(_dev) \
- (_dev->dsr_version >= PVRDMA_ROCEV2_VERSION && \
- (_dev->dsr->caps.gid_types == PVRDMA_GID_TYPE_FLAG_ROCE_V1 || \
- _dev->dsr->caps.gid_types == PVRDMA_GID_TYPE_FLAG_ROCE_V2)) \
-
-#define PVRDMA_SUPPORTED(_dev) \
- ((_dev->dsr->caps.mode == PVRDMA_DEVICE_MODE_ROCE) && \
- (PVRDMA_IS_VERSION17(_dev) || PVRDMA_IS_VERSION18(_dev)))
-
-/*
- * Get capability values based on device version.
- */
-
-#define PVRDMA_GET_CAP(_dev, _old_val, _val) \
- ((PVRDMA_IS_VERSION18(_dev)) ? _val : _old_val)
-
-enum pvrdma_pci_resource {
- PVRDMA_PCI_RESOURCE_MSIX, /* BAR0: MSI-X, MMIO. */
- PVRDMA_PCI_RESOURCE_REG, /* BAR1: Registers, MMIO. */
- PVRDMA_PCI_RESOURCE_UAR, /* BAR2: UAR pages, MMIO, 64-bit. */
- PVRDMA_PCI_RESOURCE_LAST, /* Last. */
-};
-
-enum pvrdma_device_ctl {
- PVRDMA_DEVICE_CTL_ACTIVATE, /* Activate device. */
- PVRDMA_DEVICE_CTL_UNQUIESCE, /* Unquiesce device. */
- PVRDMA_DEVICE_CTL_RESET, /* Reset device. */
-};
-
-enum pvrdma_intr_vector {
- PVRDMA_INTR_VECTOR_RESPONSE, /* Command response. */
- PVRDMA_INTR_VECTOR_ASYNC, /* Async events. */
- PVRDMA_INTR_VECTOR_CQ, /* CQ notification. */
- /* Additional CQ notification vectors. */
-};
-
-enum pvrdma_intr_cause {
- PVRDMA_INTR_CAUSE_RESPONSE = (1 << PVRDMA_INTR_VECTOR_RESPONSE),
- PVRDMA_INTR_CAUSE_ASYNC = (1 << PVRDMA_INTR_VECTOR_ASYNC),
- PVRDMA_INTR_CAUSE_CQ = (1 << PVRDMA_INTR_VECTOR_CQ),
-};
-
-enum pvrdma_gos_bits {
- PVRDMA_GOS_BITS_UNK, /* Unknown. */
- PVRDMA_GOS_BITS_32, /* 32-bit. */
- PVRDMA_GOS_BITS_64, /* 64-bit. */
-};
-
-enum pvrdma_gos_type {
- PVRDMA_GOS_TYPE_UNK, /* Unknown. */
- PVRDMA_GOS_TYPE_LINUX, /* Linux. */
-};
-
-enum pvrdma_device_mode {
- PVRDMA_DEVICE_MODE_ROCE, /* RoCE. */
- PVRDMA_DEVICE_MODE_IWARP, /* iWarp. */
- PVRDMA_DEVICE_MODE_IB, /* InfiniBand. */
-};
-
-struct pvrdma_gos_info {
- uint32_t gos_bits:2; /* W: PVRDMA_GOS_BITS_ */
- uint32_t gos_type:4; /* W: PVRDMA_GOS_TYPE_ */
- uint32_t gos_ver:16; /* W: Guest OS version. */
- uint32_t gos_misc:10; /* W: Other. */
- uint32_t pad; /* Pad to 8-byte alignment. */
-};
-
-struct pvrdma_device_caps {
- uint64_t fw_ver; /* R: Query device. */
- uint64_t node_guid;
- uint64_t sys_image_guid;
- uint64_t max_mr_size;
- uint64_t page_size_cap;
- uint64_t atomic_arg_sizes; /* EX verbs. */
- uint32_t ex_comp_mask; /* EX verbs. */
- uint32_t device_cap_flags2; /* EX verbs. */
- uint32_t max_fa_bit_boundary; /* EX verbs. */
- uint32_t log_max_atomic_inline_arg; /* EX verbs. */
- uint32_t vendor_id;
- uint32_t vendor_part_id;
- uint32_t hw_ver;
- uint32_t max_qp;
- uint32_t max_qp_wr;
- uint32_t device_cap_flags;
- uint32_t max_sge;
- uint32_t max_sge_rd;
- uint32_t max_cq;
- uint32_t max_cqe;
- uint32_t max_mr;
- uint32_t max_pd;
- uint32_t max_qp_rd_atom;
- uint32_t max_ee_rd_atom;
- uint32_t max_res_rd_atom;
- uint32_t max_qp_init_rd_atom;
- uint32_t max_ee_init_rd_atom;
- uint32_t max_ee;
- uint32_t max_rdd;
- uint32_t max_mw;
- uint32_t max_raw_ipv6_qp;
- uint32_t max_raw_ethy_qp;
- uint32_t max_mcast_grp;
- uint32_t max_mcast_qp_attach;
- uint32_t max_total_mcast_qp_attach;
- uint32_t max_ah;
- uint32_t max_fmr;
- uint32_t max_map_per_fmr;
- uint32_t max_srq;
- uint32_t max_srq_wr;
- uint32_t max_srq_sge;
- uint32_t max_uar;
- uint32_t gid_tbl_len;
- uint16_t max_pkeys;
- uint8_t local_ca_ack_delay;
- uint8_t phys_port_cnt;
- uint8_t mode; /* PVRDMA_DEVICE_MODE_ */
- uint8_t atomic_ops; /* PVRDMA_ATOMIC_OP_*
bits */
- uint8_t bmme_flags; /* FRWR Mem Mgmt
Extensions */
- uint8_t gid_types; /*
PVRDMA_GID_TYPE_FLAG_ */
- uint32_t max_fast_reg_page_list_len;
-};
-
-struct pvrdma_ring_page_info {
- uint32_t num_pages; /* Num pages incl.
header. */
- uint32_t reserved; /* Reserved. */
- uint64_t pdir_dma; /* Page directory PA. */
-};
-
-#pragma pack(push, 1)
-
-struct pvrdma_device_shared_region {
- uint32_t driver_version; /* W: Driver version. */
- uint32_t pad; /* Pad to 8-byte align. */
- struct pvrdma_gos_info gos_info; /* W: Guest OS information. */
- uint64_t cmd_slot_dma; /* W: Command slot address. */
- uint64_t resp_slot_dma; /* W: Response slot address. */
- struct pvrdma_ring_page_info async_ring_pages;
- /* W: Async ring page info. */
- struct pvrdma_ring_page_info cq_ring_pages;
- /* W: CQ ring page info. */
- union {
- uint32_t uar_pfn; /* W: UAR pageframe. */
- uint64_t uar_pfn64; /* W: 64-bit UAR page
frame. */
- };
- struct pvrdma_device_caps caps; /* R: Device capabilities. */
-};
-
-#pragma pack(pop)
-
-/* Event types. Currently a 1:1 mapping with enum ib_event. */
-enum pvrdma_eqe_type {
- PVRDMA_EVENT_CQ_ERR,
- PVRDMA_EVENT_QP_FATAL,
- PVRDMA_EVENT_QP_REQ_ERR,
- PVRDMA_EVENT_QP_ACCESS_ERR,
- PVRDMA_EVENT_COMM_EST,
- PVRDMA_EVENT_SQ_DRAINED,
- PVRDMA_EVENT_PATH_MIG,
- PVRDMA_EVENT_PATH_MIG_ERR,
- PVRDMA_EVENT_DEVICE_FATAL,
- PVRDMA_EVENT_PORT_ACTIVE,
- PVRDMA_EVENT_PORT_ERR,
- PVRDMA_EVENT_LID_CHANGE,
- PVRDMA_EVENT_PKEY_CHANGE,
- PVRDMA_EVENT_SM_CHANGE,
- PVRDMA_EVENT_SRQ_ERR,
- PVRDMA_EVENT_SRQ_LIMIT_REACHED,
- PVRDMA_EVENT_QP_LAST_WQE_REACHED,
- PVRDMA_EVENT_CLIENT_REREGISTER,
- PVRDMA_EVENT_GID_CHANGE,
-};
-
-/* Event queue element. */
-struct pvrdma_eqe {
- uint32_t type; /* Event type. */
- uint32_t info; /* Handle, other. */
-};
-
-/* CQ notification queue element. */
-struct pvrdma_cqne {
- uint32_t info; /* Handle */
-};
-
-enum {
- PVRDMA_CMD_FIRST,
- PVRDMA_CMD_QUERY_PORT = PVRDMA_CMD_FIRST,
- PVRDMA_CMD_QUERY_PKEY,
- PVRDMA_CMD_CREATE_PD,
- PVRDMA_CMD_DESTROY_PD,
- PVRDMA_CMD_CREATE_MR,
- PVRDMA_CMD_DESTROY_MR,
- PVRDMA_CMD_CREATE_CQ,
- PVRDMA_CMD_RESIZE_CQ,
- PVRDMA_CMD_DESTROY_CQ,
- PVRDMA_CMD_CREATE_QP,
- PVRDMA_CMD_MODIFY_QP,
- PVRDMA_CMD_QUERY_QP,
- PVRDMA_CMD_DESTROY_QP,
- PVRDMA_CMD_CREATE_UC,
- PVRDMA_CMD_DESTROY_UC,
- PVRDMA_CMD_CREATE_BIND,
- PVRDMA_CMD_DESTROY_BIND,
- PVRDMA_CMD_CREATE_SRQ,
- PVRDMA_CMD_MODIFY_SRQ,
- PVRDMA_CMD_QUERY_SRQ,
- PVRDMA_CMD_DESTROY_SRQ,
- PVRDMA_CMD_MAX,
-};
-
-enum {
- PVRDMA_CMD_FIRST_RESP = (1 << 31),
- PVRDMA_CMD_QUERY_PORT_RESP = PVRDMA_CMD_FIRST_RESP,
- PVRDMA_CMD_QUERY_PKEY_RESP,
- PVRDMA_CMD_CREATE_PD_RESP,
- PVRDMA_CMD_DESTROY_PD_RESP_NOOP,
- PVRDMA_CMD_CREATE_MR_RESP,
- PVRDMA_CMD_DESTROY_MR_RESP_NOOP,
- PVRDMA_CMD_CREATE_CQ_RESP,
- PVRDMA_CMD_RESIZE_CQ_RESP,
- PVRDMA_CMD_DESTROY_CQ_RESP_NOOP,
- PVRDMA_CMD_CREATE_QP_RESP,
- PVRDMA_CMD_MODIFY_QP_RESP,
- PVRDMA_CMD_QUERY_QP_RESP,
- PVRDMA_CMD_DESTROY_QP_RESP,
- PVRDMA_CMD_CREATE_UC_RESP,
- PVRDMA_CMD_DESTROY_UC_RESP_NOOP,
- PVRDMA_CMD_CREATE_BIND_RESP_NOOP,
- PVRDMA_CMD_DESTROY_BIND_RESP_NOOP,
- PVRDMA_CMD_CREATE_SRQ_RESP,
- PVRDMA_CMD_MODIFY_SRQ_RESP,
- PVRDMA_CMD_QUERY_SRQ_RESP,
- PVRDMA_CMD_DESTROY_SRQ_RESP,
- PVRDMA_CMD_MAX_RESP,
-};
-
-struct pvrdma_cmd_hdr {
- uint64_t response; /* Key for response lookup. */
- uint32_t cmd; /* PVRDMA_CMD_ */
- uint32_t reserved; /* Reserved. */
-};
-
-struct pvrdma_cmd_resp_hdr {
- uint64_t response; /* From cmd hdr. */
- uint32_t ack; /* PVRDMA_CMD_XXX_RESP */
- uint8_t err; /* Error. */
- uint8_t reserved[3]; /* Reserved. */
-};
-
-struct pvrdma_cmd_query_port {
- struct pvrdma_cmd_hdr hdr;
- uint8_t port_num;
- uint8_t reserved[7];
-};
-
-struct pvrdma_cmd_query_port_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- struct pvrdma_port_attr attrs;
-};
-
-struct pvrdma_cmd_query_pkey {
- struct pvrdma_cmd_hdr hdr;
- uint8_t port_num;
- uint8_t index;
- uint8_t reserved[6];
-};
-
-struct pvrdma_cmd_query_pkey_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint16_t pkey;
- uint8_t reserved[6];
-};
-
-struct pvrdma_cmd_create_uc {
- struct pvrdma_cmd_hdr hdr;
- union {
- uint32_t pfn; /* UAR page frame number */
- uint64_t pfn64; /* 64-bit UAR page frame number */
- };
-};
-
-struct pvrdma_cmd_create_uc_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t ctx_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_destroy_uc {
- struct pvrdma_cmd_hdr hdr;
- uint32_t ctx_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_pd {
- struct pvrdma_cmd_hdr hdr;
- uint32_t ctx_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_pd_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t pd_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_destroy_pd {
- struct pvrdma_cmd_hdr hdr;
- uint32_t pd_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_mr {
- struct pvrdma_cmd_hdr hdr;
- uint64_t start;
- uint64_t length;
- uint64_t pdir_dma;
- uint32_t pd_handle;
- uint32_t access_flags;
- uint32_t flags;
- uint32_t nchunks;
-};
-
-struct pvrdma_cmd_create_mr_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t mr_handle;
- uint32_t lkey;
- uint32_t rkey;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_destroy_mr {
- struct pvrdma_cmd_hdr hdr;
- uint32_t mr_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_cq {
- struct pvrdma_cmd_hdr hdr;
- uint64_t pdir_dma;
- uint32_t ctx_handle;
- uint32_t cqe;
- uint32_t nchunks;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_cq_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t cq_handle;
- uint32_t cqe;
-};
-
-struct pvrdma_cmd_resize_cq {
- struct pvrdma_cmd_hdr hdr;
- uint32_t cq_handle;
- uint32_t cqe;
-};
-
-struct pvrdma_cmd_resize_cq_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t cqe;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_destroy_cq {
- struct pvrdma_cmd_hdr hdr;
- uint32_t cq_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_srq {
- struct pvrdma_cmd_hdr hdr;
- uint64_t pdir_dma;
- uint32_t pd_handle;
- uint32_t nchunks;
- struct pvrdma_srq_attr attrs;
- uint8_t srq_type;
- uint8_t reserved[7];
-};
-
-struct pvrdma_cmd_create_srq_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t srqn;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_modify_srq {
- struct pvrdma_cmd_hdr hdr;
- uint32_t srq_handle;
- uint32_t attr_mask;
- struct pvrdma_srq_attr attrs;
-};
-
-struct pvrdma_cmd_query_srq {
- struct pvrdma_cmd_hdr hdr;
- uint32_t srq_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_query_srq_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- struct pvrdma_srq_attr attrs;
-};
-
-struct pvrdma_cmd_destroy_srq {
- struct pvrdma_cmd_hdr hdr;
- uint32_t srq_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_qp {
- struct pvrdma_cmd_hdr hdr;
- uint64_t pdir_dma;
- uint32_t pd_handle;
- uint32_t send_cq_handle;
- uint32_t recv_cq_handle;
- uint32_t srq_handle;
- uint32_t max_send_wr;
- uint32_t max_recv_wr;
- uint32_t max_send_sge;
- uint32_t max_recv_sge;
- uint32_t max_inline_data;
- uint32_t lkey;
- uint32_t access_flags;
- uint16_t total_chunks;
- uint16_t send_chunks;
- uint16_t max_atomic_arg;
- uint8_t sq_sig_all;
- uint8_t qp_type;
- uint8_t is_srq;
- uint8_t reserved[3];
-};
-
-struct pvrdma_cmd_create_qp_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t qpn;
- uint32_t max_send_wr;
- uint32_t max_recv_wr;
- uint32_t max_send_sge;
- uint32_t max_recv_sge;
- uint32_t max_inline_data;
-};
-
-struct pvrdma_cmd_create_qp_resp_v2 {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t qpn;
- uint32_t qp_handle;
- uint32_t max_send_wr;
- uint32_t max_recv_wr;
- uint32_t max_send_sge;
- uint32_t max_recv_sge;
- uint32_t max_inline_data;
-};
-
-struct pvrdma_cmd_modify_qp {
- struct pvrdma_cmd_hdr hdr;
- uint32_t qp_handle;
- uint32_t attr_mask;
- struct pvrdma_qp_attr attrs;
-};
-
-struct pvrdma_cmd_query_qp {
- struct pvrdma_cmd_hdr hdr;
- uint32_t qp_handle;
- uint32_t attr_mask;
-};
-
-struct pvrdma_cmd_query_qp_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- struct pvrdma_qp_attr attrs;
-};
-
-struct pvrdma_cmd_destroy_qp {
- struct pvrdma_cmd_hdr hdr;
- uint32_t qp_handle;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_destroy_qp_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- uint32_t events_reported;
- uint8_t reserved[4];
-};
-
-struct pvrdma_cmd_create_bind {
- struct pvrdma_cmd_hdr hdr;
- uint32_t mtu;
- uint32_t vlan;
- uint32_t index;
- uint8_t new_gid[16];
- uint8_t gid_type;
- uint8_t reserved[3];
-};
-
-struct pvrdma_cmd_destroy_bind {
- struct pvrdma_cmd_hdr hdr;
- uint32_t index;
- uint8_t dest_gid[16];
- uint8_t reserved[4];
-};
-
-union pvrdma_cmd_req {
- struct pvrdma_cmd_hdr hdr;
- struct pvrdma_cmd_query_port query_port;
- struct pvrdma_cmd_query_pkey query_pkey;
- struct pvrdma_cmd_create_uc create_uc;
- struct pvrdma_cmd_destroy_uc destroy_uc;
- struct pvrdma_cmd_create_pd create_pd;
- struct pvrdma_cmd_destroy_pd destroy_pd;
- struct pvrdma_cmd_create_mr create_mr;
- struct pvrdma_cmd_destroy_mr destroy_mr;
- struct pvrdma_cmd_create_cq create_cq;
- struct pvrdma_cmd_resize_cq resize_cq;
- struct pvrdma_cmd_destroy_cq destroy_cq;
- struct pvrdma_cmd_create_qp create_qp;
- struct pvrdma_cmd_modify_qp modify_qp;
- struct pvrdma_cmd_query_qp query_qp;
- struct pvrdma_cmd_destroy_qp destroy_qp;
- struct pvrdma_cmd_create_bind create_bind;
- struct pvrdma_cmd_destroy_bind destroy_bind;
- struct pvrdma_cmd_create_srq create_srq;
- struct pvrdma_cmd_modify_srq modify_srq;
- struct pvrdma_cmd_query_srq query_srq;
- struct pvrdma_cmd_destroy_srq destroy_srq;
-};
-
-union pvrdma_cmd_resp {
- struct pvrdma_cmd_resp_hdr hdr;
- struct pvrdma_cmd_query_port_resp query_port_resp;
- struct pvrdma_cmd_query_pkey_resp query_pkey_resp;
- struct pvrdma_cmd_create_uc_resp create_uc_resp;
- struct pvrdma_cmd_create_pd_resp create_pd_resp;
- struct pvrdma_cmd_create_mr_resp create_mr_resp;
- struct pvrdma_cmd_create_cq_resp create_cq_resp;
- struct pvrdma_cmd_resize_cq_resp resize_cq_resp;
- struct pvrdma_cmd_create_qp_resp create_qp_resp;
- struct pvrdma_cmd_create_qp_resp_v2 create_qp_resp_v2;
- struct pvrdma_cmd_query_qp_resp query_qp_resp;
- struct pvrdma_cmd_destroy_qp_resp destroy_qp_resp;
- struct pvrdma_cmd_create_srq_resp create_srq_resp;
- struct pvrdma_cmd_query_srq_resp query_srq_resp;
-};
-
-#endif /* __PVRDMA_DEV_API_H__ */
diff --git
a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
b/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
deleted file mode 100644
index 94d41b202c..0000000000
--- a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of EITHER the GNU General Public License
- * version 2 as published by the Free Software Foundation or the BSD
- * 2-Clause License. This program is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License version 2 for more details at
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program available in the file COPYING in the main
- * directory of this source tree.
- *
- * The BSD 2-Clause License
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __PVRDMA_VERBS_H__
-#define __PVRDMA_VERBS_H__
-
-#include "standard-headers/linux/types.h"
-
-union pvrdma_gid {
- uint8_t raw[16];
- struct {
- uint64_t subnet_prefix;
- uint64_t interface_id;
- } global;
-};
-
-enum pvrdma_link_layer {
- PVRDMA_LINK_LAYER_UNSPECIFIED,
- PVRDMA_LINK_LAYER_INFINIBAND,
- PVRDMA_LINK_LAYER_ETHERNET,
-};
-
-enum pvrdma_mtu {
- PVRDMA_MTU_256 = 1,
- PVRDMA_MTU_512 = 2,
- PVRDMA_MTU_1024 = 3,
- PVRDMA_MTU_2048 = 4,
- PVRDMA_MTU_4096 = 5,
-};
-
-enum pvrdma_port_state {
- PVRDMA_PORT_NOP = 0,
- PVRDMA_PORT_DOWN = 1,
- PVRDMA_PORT_INIT = 2,
- PVRDMA_PORT_ARMED = 3,
- PVRDMA_PORT_ACTIVE = 4,
- PVRDMA_PORT_ACTIVE_DEFER = 5,
-};
-
-enum pvrdma_port_cap_flags {
- PVRDMA_PORT_SM = 1 << 1,
- PVRDMA_PORT_NOTICE_SUP = 1 << 2,
- PVRDMA_PORT_TRAP_SUP = 1 << 3,
- PVRDMA_PORT_OPT_IPD_SUP = 1 << 4,
- PVRDMA_PORT_AUTO_MIGR_SUP = 1 << 5,
- PVRDMA_PORT_SL_MAP_SUP = 1 << 6,
- PVRDMA_PORT_MKEY_NVRAM = 1 << 7,
- PVRDMA_PORT_PKEY_NVRAM = 1 << 8,
- PVRDMA_PORT_LED_INFO_SUP = 1 << 9,
- PVRDMA_PORT_SM_DISABLED = 1 << 10,
- PVRDMA_PORT_SYS_IMAGE_GUID_SUP = 1 << 11,
- PVRDMA_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12,
- PVRDMA_PORT_EXTENDED_SPEEDS_SUP = 1 << 14,
- PVRDMA_PORT_CM_SUP = 1 << 16,
- PVRDMA_PORT_SNMP_TUNNEL_SUP = 1 << 17,
- PVRDMA_PORT_REINIT_SUP = 1 << 18,
- PVRDMA_PORT_DEVICE_MGMT_SUP = 1 << 19,
- PVRDMA_PORT_VENDOR_CLASS_SUP = 1 << 20,
- PVRDMA_PORT_DR_NOTICE_SUP = 1 << 21,
- PVRDMA_PORT_CAP_MASK_NOTICE_SUP = 1 << 22,
- PVRDMA_PORT_BOOT_MGMT_SUP = 1 << 23,
- PVRDMA_PORT_LINK_LATENCY_SUP = 1 << 24,
- PVRDMA_PORT_CLIENT_REG_SUP = 1 << 25,
- PVRDMA_PORT_IP_BASED_GIDS = 1 << 26,
- PVRDMA_PORT_CAP_FLAGS_MAX = PVRDMA_PORT_IP_BASED_GIDS,
-};
-
-enum pvrdma_port_width {
- PVRDMA_WIDTH_1X = 1,
- PVRDMA_WIDTH_4X = 2,
- PVRDMA_WIDTH_8X = 4,
- PVRDMA_WIDTH_12X = 8,
-};
-
-enum pvrdma_port_speed {
- PVRDMA_SPEED_SDR = 1,
- PVRDMA_SPEED_DDR = 2,
- PVRDMA_SPEED_QDR = 4,
- PVRDMA_SPEED_FDR10 = 8,
- PVRDMA_SPEED_FDR = 16,
- PVRDMA_SPEED_EDR = 32,
-};
-
-struct pvrdma_port_attr {
- enum pvrdma_port_state state;
- enum pvrdma_mtu max_mtu;
- enum pvrdma_mtu active_mtu;
- uint32_t gid_tbl_len;
- uint32_t port_cap_flags;
- uint32_t max_msg_sz;
- uint32_t bad_pkey_cntr;
- uint32_t qkey_viol_cntr;
- uint16_t pkey_tbl_len;
- uint16_t lid;
- uint16_t sm_lid;
- uint8_t lmc;
- uint8_t max_vl_num;
- uint8_t sm_sl;
- uint8_t subnet_timeout;
- uint8_t init_type_reply;
- uint8_t active_width;
- uint8_t active_speed;
- uint8_t phys_state;
- uint8_t reserved[2];
-};
-
-struct pvrdma_global_route {
- union pvrdma_gid dgid;
- uint32_t flow_label;
- uint8_t sgid_index;
- uint8_t hop_limit;
- uint8_t traffic_class;
- uint8_t reserved;
-};
-
-struct pvrdma_grh {
- uint32_t version_tclass_flow;
- uint16_t paylen;
- uint8_t next_hdr;
- uint8_t hop_limit;
- union pvrdma_gid sgid;
- union pvrdma_gid dgid;
-};
-
-enum pvrdma_ah_flags {
- PVRDMA_AH_GRH = 1,
-};
-
-enum pvrdma_rate {
- PVRDMA_RATE_PORT_CURRENT = 0,
- PVRDMA_RATE_2_5_GBPS = 2,
- PVRDMA_RATE_5_GBPS = 5,
- PVRDMA_RATE_10_GBPS = 3,
- PVRDMA_RATE_20_GBPS = 6,
- PVRDMA_RATE_30_GBPS = 4,
- PVRDMA_RATE_40_GBPS = 7,
- PVRDMA_RATE_60_GBPS = 8,
- PVRDMA_RATE_80_GBPS = 9,
- PVRDMA_RATE_120_GBPS = 10,
- PVRDMA_RATE_14_GBPS = 11,
- PVRDMA_RATE_56_GBPS = 12,
- PVRDMA_RATE_112_GBPS = 13,
- PVRDMA_RATE_168_GBPS = 14,
- PVRDMA_RATE_25_GBPS = 15,
- PVRDMA_RATE_100_GBPS = 16,
- PVRDMA_RATE_200_GBPS = 17,
- PVRDMA_RATE_300_GBPS = 18,
-};
-
-struct pvrdma_ah_attr {
- struct pvrdma_global_route grh;
- uint16_t dlid;
- uint16_t vlan_id;
- uint8_t sl;
- uint8_t src_path_bits;
- uint8_t static_rate;
- uint8_t ah_flags;
- uint8_t port_num;
- uint8_t dmac[6];
- uint8_t reserved;
-};
-
-enum pvrdma_cq_notify_flags {
- PVRDMA_CQ_SOLICITED = 1 << 0,
- PVRDMA_CQ_NEXT_COMP = 1 << 1,
- PVRDMA_CQ_SOLICITED_MASK = PVRDMA_CQ_SOLICITED |
- PVRDMA_CQ_NEXT_COMP,
- PVRDMA_CQ_REPORT_MISSED_EVENTS = 1 << 2,
-};
-
-struct pvrdma_qp_cap {
- uint32_t max_send_wr;
- uint32_t max_recv_wr;
- uint32_t max_send_sge;
- uint32_t max_recv_sge;
- uint32_t max_inline_data;
- uint32_t reserved;
-};
-
-enum pvrdma_sig_type {
- PVRDMA_SIGNAL_ALL_WR,
- PVRDMA_SIGNAL_REQ_WR,
-};
-
-enum pvrdma_qp_type {
- PVRDMA_QPT_SMI,
- PVRDMA_QPT_GSI,
- PVRDMA_QPT_RC,
- PVRDMA_QPT_UC,
- PVRDMA_QPT_UD,
- PVRDMA_QPT_RAW_IPV6,
- PVRDMA_QPT_RAW_ETHERTYPE,
- PVRDMA_QPT_RAW_PACKET = 8,
- PVRDMA_QPT_XRC_INI = 9,
- PVRDMA_QPT_XRC_TGT,
- PVRDMA_QPT_MAX,
-};
-
-enum pvrdma_qp_create_flags {
- PVRDMA_QP_CREATE_IPOPVRDMA_UD_LSO = 1 << 0,
- PVRDMA_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1,
-};
-
-enum pvrdma_qp_attr_mask {
- PVRDMA_QP_STATE = 1 << 0,
- PVRDMA_QP_CUR_STATE = 1 << 1,
- PVRDMA_QP_EN_SQD_ASYNC_NOTIFY = 1 << 2,
- PVRDMA_QP_ACCESS_FLAGS = 1 << 3,
- PVRDMA_QP_PKEY_INDEX = 1 << 4,
- PVRDMA_QP_PORT = 1 << 5,
- PVRDMA_QP_QKEY = 1 << 6,
- PVRDMA_QP_AV = 1 << 7,
- PVRDMA_QP_PATH_MTU = 1 << 8,
- PVRDMA_QP_TIMEOUT = 1 << 9,
- PVRDMA_QP_RETRY_CNT = 1 << 10,
- PVRDMA_QP_RNR_RETRY = 1 << 11,
- PVRDMA_QP_RQ_PSN = 1 << 12,
- PVRDMA_QP_MAX_QP_RD_ATOMIC = 1 << 13,
- PVRDMA_QP_ALT_PATH = 1 << 14,
- PVRDMA_QP_MIN_RNR_TIMER = 1 << 15,
- PVRDMA_QP_SQ_PSN = 1 << 16,
- PVRDMA_QP_MAX_DEST_RD_ATOMIC = 1 << 17,
- PVRDMA_QP_PATH_MIG_STATE = 1 << 18,
- PVRDMA_QP_CAP = 1 << 19,
- PVRDMA_QP_DEST_QPN = 1 << 20,
- PVRDMA_QP_ATTR_MASK_MAX = PVRDMA_QP_DEST_QPN,
-};
-
-enum pvrdma_qp_state {
- PVRDMA_QPS_RESET,
- PVRDMA_QPS_INIT,
- PVRDMA_QPS_RTR,
- PVRDMA_QPS_RTS,
- PVRDMA_QPS_SQD,
- PVRDMA_QPS_SQE,
- PVRDMA_QPS_ERR,
-};
-
-enum pvrdma_mig_state {
- PVRDMA_MIG_MIGRATED,
- PVRDMA_MIG_REARM,
- PVRDMA_MIG_ARMED,
-};
-
-enum pvrdma_mw_type {
- PVRDMA_MW_TYPE_1 = 1,
- PVRDMA_MW_TYPE_2 = 2,
-};
-
-struct pvrdma_srq_attr {
- uint32_t max_wr;
- uint32_t max_sge;
- uint32_t srq_limit;
- uint32_t reserved;
-};
-
-struct pvrdma_qp_attr {
- enum pvrdma_qp_state qp_state;
- enum pvrdma_qp_state cur_qp_state;
- enum pvrdma_mtu path_mtu;
- enum pvrdma_mig_state path_mig_state;
- uint32_t qkey;
- uint32_t rq_psn;
- uint32_t sq_psn;
- uint32_t dest_qp_num;
- uint32_t qp_access_flags;
- uint16_t pkey_index;
- uint16_t alt_pkey_index;
- uint8_t en_sqd_async_notify;
- uint8_t sq_draining;
- uint8_t max_rd_atomic;
- uint8_t max_dest_rd_atomic;
- uint8_t min_rnr_timer;
- uint8_t port_num;
- uint8_t timeout;
- uint8_t retry_cnt;
- uint8_t rnr_retry;
- uint8_t alt_port_num;
- uint8_t alt_timeout;
- uint8_t reserved[5];
- struct pvrdma_qp_cap cap;
- struct pvrdma_ah_attr ah_attr;
- struct pvrdma_ah_attr alt_ah_attr;
-};
-
-enum pvrdma_send_flags {
- PVRDMA_SEND_FENCE = 1 << 0,
- PVRDMA_SEND_SIGNALED = 1 << 1,
- PVRDMA_SEND_SOLICITED = 1 << 2,
- PVRDMA_SEND_INLINE = 1 << 3,
- PVRDMA_SEND_IP_CSUM = 1 << 4,
- PVRDMA_SEND_FLAGS_MAX = PVRDMA_SEND_IP_CSUM,
-};
-
-enum pvrdma_access_flags {
- PVRDMA_ACCESS_LOCAL_WRITE = 1 << 0,
- PVRDMA_ACCESS_REMOTE_WRITE = 1 << 1,
- PVRDMA_ACCESS_REMOTE_READ = 1 << 2,
- PVRDMA_ACCESS_REMOTE_ATOMIC = 1 << 3,
- PVRDMA_ACCESS_MW_BIND = 1 << 4,
- PVRDMA_ZERO_BASED = 1 << 5,
- PVRDMA_ACCESS_ON_DEMAND = 1 << 6,
- PVRDMA_ACCESS_FLAGS_MAX = PVRDMA_ACCESS_ON_DEMAND,
-};
-
-#endif /* __PVRDMA_VERBS_H__ */
diff --git a/include/standard-headers/rdma/vmw_pvrdma-abi.h
b/include/standard-headers/rdma/vmw_pvrdma-abi.h
deleted file mode 100644
index c30182a7ae..0000000000
--- a/include/standard-headers/rdma/vmw_pvrdma-abi.h
+++ /dev/null
@@ -1,310 +0,0 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR
BSD-2-Clause) */
-/*
- * Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of EITHER the GNU General Public License
- * version 2 as published by the Free Software Foundation or the BSD
- * 2-Clause License. This program is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License version 2 for more details at
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program available in the file COPYING in the main
- * directory of this source tree.
- *
- * The BSD 2-Clause License
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __VMW_PVRDMA_ABI_H__
-#define __VMW_PVRDMA_ABI_H__
-
-#include "standard-headers/linux/types.h"
-
-#define PVRDMA_UVERBS_ABI_VERSION 3 /* ABI Version. */
-#define PVRDMA_UAR_HANDLE_MASK 0x00FFFFFF /* Bottom 24 bits. */
-#define PVRDMA_UAR_QP_OFFSET 0 /* QP doorbell. */
-#define PVRDMA_UAR_QP_SEND (1 << 30) /* Send bit. */
-#define PVRDMA_UAR_QP_RECV (1 << 31) /* Recv bit. */
-#define PVRDMA_UAR_CQ_OFFSET 4 /* CQ doorbell. */
-#define PVRDMA_UAR_CQ_ARM_SOL (1 << 29) /* Arm solicited bit. */
-#define PVRDMA_UAR_CQ_ARM (1 << 30) /* Arm bit. */
-#define PVRDMA_UAR_CQ_POLL (1 << 31) /* Poll bit. */
-#define PVRDMA_UAR_SRQ_OFFSET 8 /* SRQ doorbell. */
-#define PVRDMA_UAR_SRQ_RECV (1 << 30) /* Recv bit. */
-
-enum pvrdma_wr_opcode {
- PVRDMA_WR_RDMA_WRITE,
- PVRDMA_WR_RDMA_WRITE_WITH_IMM,
- PVRDMA_WR_SEND,
- PVRDMA_WR_SEND_WITH_IMM,
- PVRDMA_WR_RDMA_READ,
- PVRDMA_WR_ATOMIC_CMP_AND_SWP,
- PVRDMA_WR_ATOMIC_FETCH_AND_ADD,
- PVRDMA_WR_LSO,
- PVRDMA_WR_SEND_WITH_INV,
- PVRDMA_WR_RDMA_READ_WITH_INV,
- PVRDMA_WR_LOCAL_INV,
- PVRDMA_WR_FAST_REG_MR,
- PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP,
- PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD,
- PVRDMA_WR_BIND_MW,
- PVRDMA_WR_REG_SIG_MR,
- PVRDMA_WR_ERROR,
-};
-
-enum pvrdma_wc_status {
- PVRDMA_WC_SUCCESS,
- PVRDMA_WC_LOC_LEN_ERR,
- PVRDMA_WC_LOC_QP_OP_ERR,
- PVRDMA_WC_LOC_EEC_OP_ERR,
- PVRDMA_WC_LOC_PROT_ERR,
- PVRDMA_WC_WR_FLUSH_ERR,
- PVRDMA_WC_MW_BIND_ERR,
- PVRDMA_WC_BAD_RESP_ERR,
- PVRDMA_WC_LOC_ACCESS_ERR,
- PVRDMA_WC_REM_INV_REQ_ERR,
- PVRDMA_WC_REM_ACCESS_ERR,
- PVRDMA_WC_REM_OP_ERR,
- PVRDMA_WC_RETRY_EXC_ERR,
- PVRDMA_WC_RNR_RETRY_EXC_ERR,
- PVRDMA_WC_LOC_RDD_VIOL_ERR,
- PVRDMA_WC_REM_INV_RD_REQ_ERR,
- PVRDMA_WC_REM_ABORT_ERR,
- PVRDMA_WC_INV_EECN_ERR,
- PVRDMA_WC_INV_EEC_STATE_ERR,
- PVRDMA_WC_FATAL_ERR,
- PVRDMA_WC_RESP_TIMEOUT_ERR,
- PVRDMA_WC_GENERAL_ERR,
-};
-
-enum pvrdma_wc_opcode {
- PVRDMA_WC_SEND,
- PVRDMA_WC_RDMA_WRITE,
- PVRDMA_WC_RDMA_READ,
- PVRDMA_WC_COMP_SWAP,
- PVRDMA_WC_FETCH_ADD,
- PVRDMA_WC_BIND_MW,
- PVRDMA_WC_LSO,
- PVRDMA_WC_LOCAL_INV,
- PVRDMA_WC_FAST_REG_MR,
- PVRDMA_WC_MASKED_COMP_SWAP,
- PVRDMA_WC_MASKED_FETCH_ADD,
- PVRDMA_WC_RECV = 1 << 7,
- PVRDMA_WC_RECV_RDMA_WITH_IMM,
-};
-
-enum pvrdma_wc_flags {
- PVRDMA_WC_GRH = 1 << 0,
- PVRDMA_WC_WITH_IMM = 1 << 1,
- PVRDMA_WC_WITH_INVALIDATE = 1 << 2,
- PVRDMA_WC_IP_CSUM_OK = 1 << 3,
- PVRDMA_WC_WITH_SMAC = 1 << 4,
- PVRDMA_WC_WITH_VLAN = 1 << 5,
- PVRDMA_WC_WITH_NETWORK_HDR_TYPE = 1 << 6,
- PVRDMA_WC_FLAGS_MAX = PVRDMA_WC_WITH_NETWORK_HDR_TYPE,
-};
-
-enum pvrdma_network_type {
- PVRDMA_NETWORK_IB,
- PVRDMA_NETWORK_ROCE_V1 = PVRDMA_NETWORK_IB,
- PVRDMA_NETWORK_IPV4,
- PVRDMA_NETWORK_IPV6
-};
-
-struct pvrdma_alloc_ucontext_resp {
- uint32_t qp_tab_size;
- uint32_t reserved;
-};
-
-struct pvrdma_alloc_pd_resp {
- uint32_t pdn;
- uint32_t reserved;
-};
-
-struct pvrdma_create_cq {
- uint64_t __attribute__((aligned(8))) buf_addr;
- uint32_t buf_size;
- uint32_t reserved;
-};
-
-struct pvrdma_create_cq_resp {
- uint32_t cqn;
- uint32_t reserved;
-};
-
-struct pvrdma_resize_cq {
- uint64_t __attribute__((aligned(8))) buf_addr;
- uint32_t buf_size;
- uint32_t reserved;
-};
-
-struct pvrdma_create_srq {
- uint64_t __attribute__((aligned(8))) buf_addr;
- uint32_t buf_size;
- uint32_t reserved;
-};
-
-struct pvrdma_create_srq_resp {
- uint32_t srqn;
- uint32_t reserved;
-};
-
-struct pvrdma_create_qp {
- uint64_t __attribute__((aligned(8))) rbuf_addr;
- uint64_t __attribute__((aligned(8))) sbuf_addr;
- uint32_t rbuf_size;
- uint32_t sbuf_size;
- uint64_t __attribute__((aligned(8))) qp_addr;
-};
-
-struct pvrdma_create_qp_resp {
- uint32_t qpn;
- uint32_t qp_handle;
-};
-
-/* PVRDMA masked atomic compare and swap */
-struct pvrdma_ex_cmp_swap {
- uint64_t __attribute__((aligned(8))) swap_val;
- uint64_t __attribute__((aligned(8))) compare_val;
- uint64_t __attribute__((aligned(8))) swap_mask;
- uint64_t __attribute__((aligned(8))) compare_mask;
-};
-
-/* PVRDMA masked atomic fetch and add */
-struct pvrdma_ex_fetch_add {
- uint64_t __attribute__((aligned(8))) add_val;
- uint64_t __attribute__((aligned(8))) field_boundary;
-};
-
-/* PVRDMA address vector. */
-struct pvrdma_av {
- uint32_t port_pd;
- uint32_t sl_tclass_flowlabel;
- uint8_t dgid[16];
- uint8_t src_path_bits;
- uint8_t gid_index;
- uint8_t stat_rate;
- uint8_t hop_limit;
- uint8_t dmac[6];
- uint8_t reserved[6];
-};
-
-/* PVRDMA scatter/gather entry */
-struct pvrdma_sge {
- uint64_t __attribute__((aligned(8))) addr;
- uint32_t length;
- uint32_t lkey;
-};
-
-/* PVRDMA receive queue work request */
-struct pvrdma_rq_wqe_hdr {
- uint64_t __attribute__((aligned(8))) wr_id; /* wr id */
- uint32_t num_sge; /* size of s/g array */
- uint32_t total_len; /* reserved */
-};
-/* Use pvrdma_sge (ib_sge) for receive queue s/g array elements. */
-
-/* PVRDMA send queue work request */
-struct pvrdma_sq_wqe_hdr {
- uint64_t __attribute__((aligned(8))) wr_id; /* wr id */
- uint32_t num_sge; /* size of s/g array */
- uint32_t total_len; /* reserved */
- uint32_t opcode; /* operation type */
- uint32_t send_flags; /* wr flags */
- union {
- uint32_t imm_data;
- uint32_t invalidate_rkey;
- } ex;
- uint32_t reserved;
- union {
- struct {
- uint64_t __attribute__((aligned(8))) remote_addr;
- uint32_t rkey;
- uint8_t reserved[4];
- } rdma;
- struct {
- uint64_t __attribute__((aligned(8))) remote_addr;
- uint64_t __attribute__((aligned(8))) compare_add;
- uint64_t __attribute__((aligned(8))) swap;
- uint32_t rkey;
- uint32_t reserved;
- } atomic;
- struct {
- uint64_t __attribute__((aligned(8))) remote_addr;
- uint32_t log_arg_sz;
- uint32_t rkey;
- union {
- struct pvrdma_ex_cmp_swap cmp_swap;
- struct pvrdma_ex_fetch_add fetch_add;
- } wr_data;
- } masked_atomics;
- struct {
- uint64_t __attribute__((aligned(8))) iova_start;
- uint64_t __attribute__((aligned(8))) pl_pdir_dma;
- uint32_t page_shift;
- uint32_t page_list_len;
- uint32_t length;
- uint32_t access_flags;
- uint32_t rkey;
- uint32_t reserved;
- } fast_reg;
- struct {
- uint32_t remote_qpn;
- uint32_t remote_qkey;
- struct pvrdma_av av;
- } ud;
- } wr;
-};
-/* Use pvrdma_sge (ib_sge) for send queue s/g array elements. */
-
-/* Completion queue element. */
-struct pvrdma_cqe {
- uint64_t __attribute__((aligned(8))) wr_id;
- uint64_t __attribute__((aligned(8))) qp;
- uint32_t opcode;
- uint32_t status;
- uint32_t byte_len;
- uint32_t imm_data;
- uint32_t src_qp;
- uint32_t wc_flags;
- uint32_t vendor_err;
- uint16_t pkey_index;
- uint16_t slid;
- uint8_t sl;
- uint8_t dlid_path_bits;
- uint8_t port_num;
- uint8_t smac[6];
- uint8_t network_hdr_type;
- uint8_t reserved2[6]; /* Pad to next power of 2 (64). */
-};
-
-#endif /* __VMW_PVRDMA_ABI_H__ */
diff --git a/migration/migration-stats.h b/migration/migration-stats.h
index 05290ade76..817c53559a 100644
--- a/migration/migration-stats.h
+++ b/migration/migration-stats.h
@@ -93,10 +93,6 @@ typedef struct {
* Maximum amount of data we can send in a cycle.
*/
Stat64 rate_limit_max;
- /*
- * Number of bytes sent through RDMA.
- */
- Stat64 rdma_bytes;
/*
* Number of pages transferred that were full of zeros.
*/
@@ -133,7 +129,7 @@ void migration_rate_set(uint64_t new_rate);
*
* Returns how many bytes have we transferred since the beginning of
* the migration. It accounts for bytes sent through any migration
- * channel, multifd, qemu_file, rdma, ....
+ * channel, multifd, qemu_file, ....
*/
uint64_t migration_transferred_bytes(void);
#endif
diff --git a/migration/migration.h b/migration/migration.h
index 8045e39c26..d097828580 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -162,13 +162,6 @@ struct MigrationIncomingState {
int state;
- /*
- * The incoming migration coroutine, non-NULL during qemu_loadvm_state().
- * Used to wake the migration incoming coroutine from rdma code. How much
is
- * it safe - it's a question.
- */
- Coroutine *loadvm_co;
-
/* The coroutine we should enter (back) after failover */
Coroutine *colo_incoming_co;
QemuSemaphore colo_incoming_sem;
@@ -463,8 +456,6 @@ struct MigrationState {
* switchover has been received.
*/
bool switchover_acked;
- /* Is this a rdma migration */
- bool rdma_migration;
};
void migrate_set_state(int *state, int old_state, int new_state);
diff --git a/migration/options.h b/migration/options.h
index ab8199e207..c00213973e 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -37,7 +37,6 @@ bool migrate_multifd(void);
bool migrate_pause_before_switchover(void);
bool migrate_postcopy_blocktime(void);
bool migrate_postcopy_preempt(void);
-bool migrate_rdma_pin_all(void);
bool migrate_release_ram(void);
bool migrate_return_path(void);
bool migrate_validate_uuid(void);
@@ -54,7 +53,6 @@ bool migrate_zero_copy_send(void);
bool migrate_multifd_flush_after_each_section(void);
bool migrate_postcopy(void);
-bool migrate_rdma(void);
bool migrate_tls(void);
/* capabilities helpers */
diff --git a/migration/rdma.h b/migration/rdma.h
deleted file mode 100644
index a8d27f33b8..0000000000
--- a/migration/rdma.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * RDMA protocol and interfaces
- *
- * Copyright IBM, Corp. 2010-2013
- * Copyright Red Hat, Inc. 2015-2016
- *
- * Authors:
- * Michael R. Hines <mrhines@us.ibm.com>
- * Jiuxing Liu <jl@us.ibm.com>
- * Daniel P. Berrange <berrange@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later. See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/sockets.h"
-
-#ifndef QEMU_MIGRATION_RDMA_H
-#define QEMU_MIGRATION_RDMA_H
-
-#include "exec/memory.h"
-
-void rdma_start_outgoing_migration(void *opaque, InetSocketAddress *host_port,
- Error **errp);
-
-void rdma_start_incoming_migration(InetSocketAddress *host_port, Error **errp);
-
-/*
- * Constants used by rdma return codes
- */
-#define RAM_CONTROL_SETUP 0
-#define RAM_CONTROL_ROUND 1
-#define RAM_CONTROL_FINISH 3
-
-/*
- * Whenever this is found in the data stream, the flags
- * will be passed to rdma functions in the incoming-migration
- * side.
- */
-#define RAM_SAVE_FLAG_HOOK 0x80
-
-#define RAM_SAVE_CONTROL_NOT_SUPP -1000
-#define RAM_SAVE_CONTROL_DELAYED -2000
-
-#ifdef CONFIG_RDMA
-int rdma_registration_handle(QEMUFile *f);
-int rdma_registration_start(QEMUFile *f, uint64_t flags);
-int rdma_registration_stop(QEMUFile *f, uint64_t flags);
-int rdma_block_notification_handle(QEMUFile *f, const char *name);
-int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
- ram_addr_t offset, size_t size);
-#else
-static inline
-int rdma_registration_handle(QEMUFile *f) { return 0; }
-static inline
-int rdma_registration_start(QEMUFile *f, uint64_t flags) { return 0; }
-static inline
-int rdma_registration_stop(QEMUFile *f, uint64_t flags) { return 0; }
-static inline
-int rdma_block_notification_handle(QEMUFile *f, const char *name) { return 0; }
-static inline
-int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
- ram_addr_t offset, size_t size)
-{
- return RAM_SAVE_CONTROL_NOT_SUPP;
-}
-#endif
-#endif
diff --git a/block/gluster.c b/block/gluster.c
index cc74af06dc..4253c8db5e 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -371,9 +371,6 @@ static int qemu_gluster_parse_uri(BlockdevOptionsGluster
*gconf,
} else if (!strcmp(uri->scheme, "gluster+unix")) {
gsconf->type = SOCKET_ADDRESS_TYPE_UNIX;
is_unix = true;
- } else if (!strcmp(uri->scheme, "gluster+rdma")) {
- gsconf->type = SOCKET_ADDRESS_TYPE_INET;
- warn_report("rdma feature is not supported, falling back to tcp");
} else {
ret = -EINVAL;
goto out;
@@ -1638,44 +1635,8 @@ static BlockDriver bdrv_gluster_unix = {
.strong_runtime_opts = gluster_strong_open_opts,
};
-/* rdma is deprecated (actually never supported for volfile fetch).
- * Let's maintain it for the protocol compatibility, to make sure things
- * won't break immediately. For now, gluster+rdma will fall back to gluster+tcp
- * protocol with a warning.
- * TODO: remove gluster+rdma interface support
- */
-static BlockDriver bdrv_gluster_rdma = {
- .format_name = "gluster",
- .protocol_name = "gluster+rdma",
- .instance_size = sizeof(BDRVGlusterState),
- .bdrv_file_open = qemu_gluster_open,
- .bdrv_reopen_prepare = qemu_gluster_reopen_prepare,
- .bdrv_reopen_commit = qemu_gluster_reopen_commit,
- .bdrv_reopen_abort = qemu_gluster_reopen_abort,
- .bdrv_close = qemu_gluster_close,
- .bdrv_co_create = qemu_gluster_co_create,
- .bdrv_co_create_opts = qemu_gluster_co_create_opts,
- .bdrv_co_getlength = qemu_gluster_co_getlength,
- .bdrv_co_get_allocated_file_size = qemu_gluster_co_get_allocated_file_size,
- .bdrv_co_truncate = qemu_gluster_co_truncate,
- .bdrv_co_readv = qemu_gluster_co_readv,
- .bdrv_co_writev = qemu_gluster_co_writev,
- .bdrv_co_flush_to_disk = qemu_gluster_co_flush_to_disk,
-#ifdef CONFIG_GLUSTERFS_DISCARD
- .bdrv_co_pdiscard = qemu_gluster_co_pdiscard,
-#endif
-#ifdef CONFIG_GLUSTERFS_ZEROFILL
- .bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
-#endif
- .bdrv_co_block_status = qemu_gluster_co_block_status,
- .bdrv_refresh_limits = qemu_gluster_refresh_limits,
- .create_opts = &qemu_gluster_create_opts,
- .strong_runtime_opts = gluster_strong_open_opts,
-};
-
static void bdrv_gluster_init(void)
{
- bdrv_register(&bdrv_gluster_rdma);
bdrv_register(&bdrv_gluster_unix);
bdrv_register(&bdrv_gluster_tcp);
bdrv_register(&bdrv_gluster);
diff --git a/contrib/rdmacm-mux/main.c b/contrib/rdmacm-mux/main.c
deleted file mode 100644
index 771ca01e03..0000000000
--- a/contrib/rdmacm-mux/main.c
+++ /dev/null
@@ -1,831 +0,0 @@
-/*
- * QEMU paravirtual RDMA - rdmacm-mux implementation
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include <sys/poll.h>
-#include <sys/ioctl.h>
-#include <pthread.h>
-#include <syslog.h>
-
-#include <infiniband/verbs.h>
-#include <infiniband/umad.h>
-#include <infiniband/umad_types.h>
-#include <infiniband/umad_sa.h>
-#include <infiniband/umad_cm.h>
-
-#include "rdmacm-mux.h"
-
-#define SCALE_US 1000
-#define COMMID_TTL 2 /* How many SCALE_US a context of MAD session is saved */
-#define SLEEP_SECS 5 /* This is used both in poll() and thread */
-#define SERVER_LISTEN_BACKLOG 10
-#define MAX_CLIENTS 4096
-#define MAD_RMPP_VERSION 0
-#define MAD_METHOD_MASK0 0x8
-
-#define IB_USER_MAD_LONGS_PER_METHOD_MASK (128 / (8 * sizeof(long)))
-
-#define CM_REQ_DGID_POS 80
-#define CM_SIDR_REQ_DGID_POS 44
-
-/* The below can be override by command line parameter */
-#define UNIX_SOCKET_PATH "/var/run/rdmacm-mux"
-/* Has format %s-%s-%d" <path>-<rdma-dev--name>-<port> */
-#define SOCKET_PATH_MAX (PATH_MAX - NAME_MAX - sizeof(int) - 2)
-#define RDMA_PORT_NUM 1
-
-typedef struct RdmaCmServerArgs {
- char unix_socket_path[PATH_MAX];
- char rdma_dev_name[NAME_MAX];
- int rdma_port_num;
-} RdmaCMServerArgs;
-
-typedef struct CommId2FdEntry {
- int fd;
- int ttl; /* Initialized to 2, decrement each timeout, entry delete when 0
*/
- __be64 gid_ifid;
-} CommId2FdEntry;
-
-typedef struct RdmaCmUMadAgent {
- int port_id;
- int agent_id;
- GHashTable *gid2fd; /* Used to find fd of a given gid */
- GHashTable *commid2fd; /* Used to find fd on of a given comm_id */
-} RdmaCmUMadAgent;
-
-typedef struct RdmaCmServer {
- bool run;
- RdmaCMServerArgs args;
- struct pollfd fds[MAX_CLIENTS];
- int nfds;
- RdmaCmUMadAgent umad_agent;
- pthread_t umad_recv_thread;
- pthread_rwlock_t lock;
-} RdmaCMServer;
-
-static RdmaCMServer server = {0};
-
-static void usage(const char *progname)
-{
- printf("Usage: %s [OPTION]...\n"
- "Start a RDMA-CM multiplexer\n"
- "\n"
- "\t-h Show this help\n"
- "\t-d rdma-device-name Name of RDMA device to register with\n"
- "\t-s unix-socket-path Path to unix socket to listen on (default
%s)\n"
- "\t-p rdma-device-port Port number of RDMA device to register
with (default %d)\n",
- progname, UNIX_SOCKET_PATH, RDMA_PORT_NUM);
-}
-
-static void help(const char *progname)
-{
- fprintf(stderr, "Try '%s -h' for more information.\n", progname);
-}
-
-static void parse_args(int argc, char *argv[])
-{
- int c;
- char unix_socket_path[SOCKET_PATH_MAX];
-
- strcpy(server.args.rdma_dev_name, "");
- strcpy(unix_socket_path, UNIX_SOCKET_PATH);
- server.args.rdma_port_num = RDMA_PORT_NUM;
-
- while ((c = getopt(argc, argv, "hs:d:p:")) != -1) {
- switch (c) {
- case 'h':
- usage(argv[0]);
- exit(0);
-
- case 'd':
- strncpy(server.args.rdma_dev_name, optarg, NAME_MAX - 1);
- break;
-
- case 's':
- /* This is temporary, final name will build below */
- strncpy(unix_socket_path, optarg, SOCKET_PATH_MAX - 1);
- break;
-
- case 'p':
- server.args.rdma_port_num = atoi(optarg);
- break;
-
- default:
- help(argv[0]);
- exit(1);
- }
- }
-
- if (!strcmp(server.args.rdma_dev_name, "")) {
- fprintf(stderr, "Missing RDMA device name\n");
- help(argv[0]);
- exit(1);
- }
-
- /* Build unique unix-socket file name */
- snprintf(server.args.unix_socket_path, PATH_MAX, "%s-%s-%d",
- unix_socket_path, server.args.rdma_dev_name,
- server.args.rdma_port_num);
-
- syslog(LOG_INFO, "unix_socket_path=%s", server.args.unix_socket_path);
- syslog(LOG_INFO, "rdma-device-name=%s", server.args.rdma_dev_name);
- syslog(LOG_INFO, "rdma-device-port=%d", server.args.rdma_port_num);
-}
-
-static void hash_tbl_alloc(void)
-{
-
- server.umad_agent.gid2fd = g_hash_table_new_full(g_int64_hash,
- g_int64_equal,
- g_free, g_free);
- server.umad_agent.commid2fd = g_hash_table_new_full(g_int_hash,
- g_int_equal,
- g_free, g_free);
-}
-
-static void hash_tbl_free(void)
-{
- if (server.umad_agent.commid2fd) {
- g_hash_table_destroy(server.umad_agent.commid2fd);
- }
- if (server.umad_agent.gid2fd) {
- g_hash_table_destroy(server.umad_agent.gid2fd);
- }
-}
-
-
-static int _hash_tbl_search_fd_by_ifid(__be64 *gid_ifid)
-{
- int *fd;
-
- fd = g_hash_table_lookup(server.umad_agent.gid2fd, gid_ifid);
- if (!fd) {
- /* Let's try IPv4 */
- *gid_ifid |= 0x00000000ffff0000;
- fd = g_hash_table_lookup(server.umad_agent.gid2fd, gid_ifid);
- }
-
- return fd ? *fd : 0;
-}
-
-static int hash_tbl_search_fd_by_ifid(int *fd, __be64 *gid_ifid)
-{
- pthread_rwlock_rdlock(&server.lock);
- *fd = _hash_tbl_search_fd_by_ifid(gid_ifid);
- pthread_rwlock_unlock(&server.lock);
-
- if (!*fd) {
- syslog(LOG_WARNING, "Can't find matching for ifid 0x%llx\n",
*gid_ifid);
- return -ENOENT;
- }
-
- return 0;
-}
-
-static int hash_tbl_search_fd_by_comm_id(uint32_t comm_id, int *fd,
- __be64 *gid_idid)
-{
- CommId2FdEntry *fde;
-
- pthread_rwlock_rdlock(&server.lock);
- fde = g_hash_table_lookup(server.umad_agent.commid2fd, &comm_id);
- pthread_rwlock_unlock(&server.lock);
-
- if (!fde) {
- syslog(LOG_WARNING, "Can't find matching for comm_id 0x%x\n", comm_id);
- return -ENOENT;
- }
-
- *fd = fde->fd;
- *gid_idid = fde->gid_ifid;
-
- return 0;
-}
-
-static RdmaCmMuxErrCode add_fd_ifid_pair(int fd, __be64 gid_ifid)
-{
- int fd1;
-
- pthread_rwlock_wrlock(&server.lock);
-
- fd1 = _hash_tbl_search_fd_by_ifid(&gid_ifid);
- if (fd1) { /* record already exist - an error */
- pthread_rwlock_unlock(&server.lock);
- return fd == fd1 ? RDMACM_MUX_ERR_CODE_EEXIST :
- RDMACM_MUX_ERR_CODE_EACCES;
- }
-
- g_hash_table_insert(server.umad_agent.gid2fd, g_memdup(&gid_ifid,
- sizeof(gid_ifid)), g_memdup(&fd, sizeof(fd)));
-
- pthread_rwlock_unlock(&server.lock);
-
- syslog(LOG_INFO, "0x%lx registered on socket %d",
- be64toh((uint64_t)gid_ifid), fd);
-
- return RDMACM_MUX_ERR_CODE_OK;
-}
-
-static RdmaCmMuxErrCode delete_fd_ifid_pair(int fd, __be64 gid_ifid)
-{
- int fd1;
-
- pthread_rwlock_wrlock(&server.lock);
-
- fd1 = _hash_tbl_search_fd_by_ifid(&gid_ifid);
- if (!fd1) { /* record not exist - an error */
- pthread_rwlock_unlock(&server.lock);
- return RDMACM_MUX_ERR_CODE_ENOTFOUND;
- }
-
- g_hash_table_remove(server.umad_agent.gid2fd, g_memdup(&gid_ifid,
- sizeof(gid_ifid)));
- pthread_rwlock_unlock(&server.lock);
-
- syslog(LOG_INFO, "0x%lx unregistered on socket %d",
- be64toh((uint64_t)gid_ifid), fd);
-
- return RDMACM_MUX_ERR_CODE_OK;
-}
-
-static void hash_tbl_save_fd_comm_id_pair(int fd, uint32_t comm_id,
- uint64_t gid_ifid)
-{
- CommId2FdEntry fde = {fd, COMMID_TTL, gid_ifid};
-
- pthread_rwlock_wrlock(&server.lock);
- g_hash_table_insert(server.umad_agent.commid2fd,
- g_memdup(&comm_id, sizeof(comm_id)),
- g_memdup(&fde, sizeof(fde)));
- pthread_rwlock_unlock(&server.lock);
-}
-
-static gboolean remove_old_comm_ids(gpointer key, gpointer value,
- gpointer user_data)
-{
- CommId2FdEntry *fde = (CommId2FdEntry *)value;
-
- return !fde->ttl--;
-}
-
-static gboolean remove_entry_from_gid2fd(gpointer key, gpointer value,
- gpointer user_data)
-{
- if (*(int *)value == *(int *)user_data) {
- syslog(LOG_INFO, "0x%lx unregistered on socket %d",
- be64toh(*(uint64_t *)key), *(int *)value);
- return true;
- }
-
- return false;
-}
-
-static void hash_tbl_remove_fd_ifid_pair(int fd)
-{
- pthread_rwlock_wrlock(&server.lock);
- g_hash_table_foreach_remove(server.umad_agent.gid2fd,
- remove_entry_from_gid2fd, (gpointer)&fd);
- pthread_rwlock_unlock(&server.lock);
-}
-
-static int get_fd(const char *mad, int umad_len, int *fd, __be64 *gid_ifid)
-{
- struct umad_hdr *hdr = (struct umad_hdr *)mad;
- char *data = (char *)hdr + sizeof(*hdr);
- int32_t comm_id = 0;
- uint16_t attr_id = be16toh(hdr->attr_id);
- int rc = 0;
-
- if (umad_len <= sizeof(*hdr)) {
- rc = -EINVAL;
- syslog(LOG_DEBUG, "Ignoring MAD packets with header only\n");
- goto out;
- }
-
- switch (attr_id) {
- case UMAD_CM_ATTR_REQ:
- if (unlikely(umad_len < sizeof(*hdr) + CM_REQ_DGID_POS +
- sizeof(*gid_ifid))) {
- rc = -EINVAL;
- syslog(LOG_WARNING,
- "Invalid MAD packet size (%d) for attr_id 0x%x\n", umad_len,
- attr_id);
- goto out;
- }
- memcpy(gid_ifid, data + CM_REQ_DGID_POS, sizeof(*gid_ifid));
- rc = hash_tbl_search_fd_by_ifid(fd, gid_ifid);
- break;
-
- case UMAD_CM_ATTR_SIDR_REQ:
- if (unlikely(umad_len < sizeof(*hdr) + CM_SIDR_REQ_DGID_POS +
- sizeof(*gid_ifid))) {
- rc = -EINVAL;
- syslog(LOG_WARNING,
- "Invalid MAD packet size (%d) for attr_id 0x%x\n", umad_len,
- attr_id);
- goto out;
- }
- memcpy(gid_ifid, data + CM_SIDR_REQ_DGID_POS, sizeof(*gid_ifid));
- rc = hash_tbl_search_fd_by_ifid(fd, gid_ifid);
- break;
-
- case UMAD_CM_ATTR_REP:
- /* Fall through */
- case UMAD_CM_ATTR_REJ:
- /* Fall through */
- case UMAD_CM_ATTR_DREQ:
- /* Fall through */
- case UMAD_CM_ATTR_DREP:
- /* Fall through */
- case UMAD_CM_ATTR_RTU:
- data += sizeof(comm_id);
- /* Fall through */
- case UMAD_CM_ATTR_SIDR_REP:
- if (unlikely(umad_len < sizeof(*hdr) + sizeof(comm_id))) {
- rc = -EINVAL;
- syslog(LOG_WARNING,
- "Invalid MAD packet size (%d) for attr_id 0x%x\n", umad_len,
- attr_id);
- goto out;
- }
- memcpy(&comm_id, data, sizeof(comm_id));
- if (comm_id) {
- rc = hash_tbl_search_fd_by_comm_id(comm_id, fd, gid_ifid);
- }
- break;
-
- default:
- rc = -EINVAL;
- syslog(LOG_WARNING, "Unsupported attr_id 0x%x\n", attr_id);
- }
-
- syslog(LOG_DEBUG, "mad_to_vm: %d 0x%x 0x%x\n", *fd, attr_id, comm_id);
-
-out:
- return rc;
-}
-
-static void *umad_recv_thread_func(void *args)
-{
- int rc;
- RdmaCmMuxMsg msg = {};
- int fd = -2;
-
- msg.hdr.msg_type = RDMACM_MUX_MSG_TYPE_REQ;
- msg.hdr.op_code = RDMACM_MUX_OP_CODE_MAD;
-
- while (server.run) {
- do {
- msg.umad_len = sizeof(msg.umad.mad);
- rc = umad_recv(server.umad_agent.port_id, &msg.umad, &msg.umad_len,
- SLEEP_SECS * SCALE_US);
- if ((rc == -EIO) || (rc == -EINVAL)) {
- syslog(LOG_CRIT, "Fatal error while trying to read MAD");
- }
-
- if (rc == -ETIMEDOUT) {
- g_hash_table_foreach_remove(server.umad_agent.commid2fd,
- remove_old_comm_ids, NULL);
- }
- } while (rc && server.run);
-
- if (server.run) {
- rc = get_fd(msg.umad.mad, msg.umad_len, &fd,
- &msg.hdr.sgid.global.interface_id);
- if (rc) {
- continue;
- }
-
- send(fd, &msg, sizeof(msg), 0);
- }
- }
-
- return NULL;
-}
-
-static int read_and_process(int fd)
-{
- int rc;
- RdmaCmMuxMsg msg = {};
- struct umad_hdr *hdr;
- uint32_t *comm_id = 0;
- uint16_t attr_id;
-
- rc = recv(fd, &msg, sizeof(msg), 0);
- syslog(LOG_DEBUG, "Socket %d, recv %d\n", fd, rc);
-
- if (rc < 0 && errno != EWOULDBLOCK) {
- syslog(LOG_ERR, "Fail to read from socket %d\n", fd);
- return -EIO;
- }
-
- if (!rc) {
- syslog(LOG_ERR, "Fail to read from socket %d\n", fd);
- return -EPIPE;
- }
-
- if (msg.hdr.msg_type != RDMACM_MUX_MSG_TYPE_REQ) {
- syslog(LOG_WARNING, "Got non-request message (%d) from socket %d\n",
- msg.hdr.msg_type, fd);
- return -EPERM;
- }
-
- switch (msg.hdr.op_code) {
- case RDMACM_MUX_OP_CODE_REG:
- rc = add_fd_ifid_pair(fd, msg.hdr.sgid.global.interface_id);
- break;
-
- case RDMACM_MUX_OP_CODE_UNREG:
- rc = delete_fd_ifid_pair(fd, msg.hdr.sgid.global.interface_id);
- break;
-
- case RDMACM_MUX_OP_CODE_MAD:
- /* If this is REQ or REP then store the pair comm_id,fd to be later
- * used for other messages where gid is unknown */
- hdr = (struct umad_hdr *)msg.umad.mad;
- attr_id = be16toh(hdr->attr_id);
- if ((attr_id == UMAD_CM_ATTR_REQ) || (attr_id == UMAD_CM_ATTR_DREQ) ||
- (attr_id == UMAD_CM_ATTR_SIDR_REQ) ||
- (attr_id == UMAD_CM_ATTR_REP) || (attr_id == UMAD_CM_ATTR_DREP)) {
- comm_id = (uint32_t *)(msg.umad.mad + sizeof(*hdr));
- hash_tbl_save_fd_comm_id_pair(fd, *comm_id,
- msg.hdr.sgid.global.interface_id);
- }
-
- syslog(LOG_DEBUG, "vm_to_mad: %d 0x%x 0x%x\n", fd, attr_id,
- comm_id ? *comm_id : 0);
- rc = umad_send(server.umad_agent.port_id, server.umad_agent.agent_id,
- &msg.umad, msg.umad_len, 1, 0);
- if (rc) {
- syslog(LOG_ERR,
- "Fail to send MAD message (0x%x) from socket %d, err=%d",
- attr_id, fd, rc);
- }
- break;
-
- default:
- syslog(LOG_ERR, "Got invalid op_code (%d) from socket %d",
- msg.hdr.msg_type, fd);
- rc = RDMACM_MUX_ERR_CODE_EINVAL;
- }
-
- msg.hdr.msg_type = RDMACM_MUX_MSG_TYPE_RESP;
- msg.hdr.err_code = rc;
- rc = send(fd, &msg, sizeof(msg), 0);
-
- return rc == sizeof(msg) ? 0 : -EPIPE;
-}
-
-static int accept_all(void)
-{
- int fd, rc = 0;
-
- pthread_rwlock_wrlock(&server.lock);
-
- do {
- if ((server.nfds + 1) > MAX_CLIENTS) {
- syslog(LOG_WARNING, "Too many clients (%d)", server.nfds);
- rc = -EIO;
- goto out;
- }
-
- fd = accept(server.fds[0].fd, NULL, NULL);
- if (fd < 0) {
- if (errno != EWOULDBLOCK) {
- syslog(LOG_WARNING, "accept() failed");
- rc = -EIO;
- goto out;
- }
- break;
- }
-
- syslog(LOG_INFO, "Client connected on socket %d\n", fd);
- server.fds[server.nfds].fd = fd;
- server.fds[server.nfds].events = POLLIN;
- server.nfds++;
- } while (fd != -1);
-
-out:
- pthread_rwlock_unlock(&server.lock);
- return rc;
-}
-
-static void compress_fds(void)
-{
- int i, j;
- int closed = 0;
-
- pthread_rwlock_wrlock(&server.lock);
-
- for (i = 1; i < server.nfds; i++) {
- if (!server.fds[i].fd) {
- closed++;
- for (j = i; j < server.nfds - 1; j++) {
- server.fds[j] = server.fds[j + 1];
- }
- }
- }
-
- server.nfds -= closed;
-
- pthread_rwlock_unlock(&server.lock);
-}
-
-static void close_fd(int idx)
-{
- close(server.fds[idx].fd);
- syslog(LOG_INFO, "Socket %d closed\n", server.fds[idx].fd);
- hash_tbl_remove_fd_ifid_pair(server.fds[idx].fd);
- server.fds[idx].fd = 0;
-}
-
-static void run(void)
-{
- int rc, nfds, i;
- bool compress = false;
-
- syslog(LOG_INFO, "Service started");
-
- while (server.run) {
- rc = poll(server.fds, server.nfds, SLEEP_SECS * SCALE_US);
- if (rc < 0) {
- if (errno != EINTR) {
- syslog(LOG_WARNING, "poll() failed");
- }
- continue;
- }
-
- if (rc == 0) {
- continue;
- }
-
- nfds = server.nfds;
- for (i = 0; i < nfds; i++) {
- syslog(LOG_DEBUG, "pollfd[%d]: revents 0x%x, events 0x%x\n", i,
- server.fds[i].revents, server.fds[i].events);
- if (server.fds[i].revents == 0) {
- continue;
- }
-
- if (server.fds[i].revents != POLLIN) {
- if (i == 0) {
- syslog(LOG_NOTICE, "Unexpected poll() event (0x%x)\n",
- server.fds[i].revents);
- } else {
- close_fd(i);
- compress = true;
- }
- continue;
- }
-
- if (i == 0) {
- rc = accept_all();
- if (rc) {
- continue;
- }
- } else {
- rc = read_and_process(server.fds[i].fd);
- if (rc) {
- close_fd(i);
- compress = true;
- }
- }
- }
-
- if (compress) {
- compress = false;
- compress_fds();
- }
- }
-}
-
-static void fini_listener(void)
-{
- int i;
-
- if (server.fds[0].fd <= 0) {
- return;
- }
-
- for (i = server.nfds - 1; i >= 0; i--) {
- if (server.fds[i].fd) {
- close(server.fds[i].fd);
- }
- }
-
- unlink(server.args.unix_socket_path);
-}
-
-static void fini_umad(void)
-{
- if (server.umad_agent.agent_id) {
- umad_unregister(server.umad_agent.port_id, server.umad_agent.agent_id);
- }
-
- if (server.umad_agent.port_id) {
- umad_close_port(server.umad_agent.port_id);
- }
-
- hash_tbl_free();
-}
-
-static void fini(void)
-{
- if (server.umad_recv_thread) {
- pthread_join(server.umad_recv_thread, NULL);
- server.umad_recv_thread = 0;
- }
- fini_umad();
- fini_listener();
- pthread_rwlock_destroy(&server.lock);
-
- syslog(LOG_INFO, "Service going down");
-}
-
-static int init_listener(void)
-{
- struct sockaddr_un sun;
- int rc, on = 1;
-
- server.fds[0].fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (server.fds[0].fd < 0) {
- syslog(LOG_ALERT, "socket() failed");
- return -EIO;
- }
-
- rc = setsockopt(server.fds[0].fd, SOL_SOCKET, SO_REUSEADDR, (char *)&on,
- sizeof(on));
- if (rc < 0) {
- syslog(LOG_ALERT, "setsockopt() failed");
- rc = -EIO;
- goto err;
- }
-
- rc = ioctl(server.fds[0].fd, FIONBIO, (char *)&on);
- if (rc < 0) {
- syslog(LOG_ALERT, "ioctl() failed");
- rc = -EIO;
- goto err;
- }
-
- if (strlen(server.args.unix_socket_path) >= sizeof(sun.sun_path)) {
- syslog(LOG_ALERT,
- "Invalid unix_socket_path, size must be less than %ld\n",
- sizeof(sun.sun_path));
- rc = -EINVAL;
- goto err;
- }
-
- sun.sun_family = AF_UNIX;
- rc = snprintf(sun.sun_path, sizeof(sun.sun_path), "%s",
- server.args.unix_socket_path);
- if (rc < 0 || rc >= sizeof(sun.sun_path)) {
- syslog(LOG_ALERT, "Could not copy unix socket path\n");
- rc = -EINVAL;
- goto err;
- }
-
- rc = bind(server.fds[0].fd, (struct sockaddr *)&sun, sizeof(sun));
- if (rc < 0) {
- syslog(LOG_ALERT, "bind() failed");
- rc = -EIO;
- goto err;
- }
-
- rc = listen(server.fds[0].fd, SERVER_LISTEN_BACKLOG);
- if (rc < 0) {
- syslog(LOG_ALERT, "listen() failed");
- rc = -EIO;
- goto err;
- }
-
- server.fds[0].events = POLLIN;
- server.nfds = 1;
- server.run = true;
-
- return 0;
-
-err:
- close(server.fds[0].fd);
- return rc;
-}
-
-static int init_umad(void)
-{
- long method_mask[IB_USER_MAD_LONGS_PER_METHOD_MASK];
-
- server.umad_agent.port_id = umad_open_port(server.args.rdma_dev_name,
- server.args.rdma_port_num);
-
- if (server.umad_agent.port_id < 0) {
- syslog(LOG_WARNING, "umad_open_port() failed");
- return -EIO;
- }
-
- memset(&method_mask, 0, sizeof(method_mask));
- method_mask[0] = MAD_METHOD_MASK0;
- server.umad_agent.agent_id = umad_register(server.umad_agent.port_id,
- UMAD_CLASS_CM,
- UMAD_SA_CLASS_VERSION,
- MAD_RMPP_VERSION, method_mask);
- if (server.umad_agent.agent_id < 0) {
- syslog(LOG_WARNING, "umad_register() failed");
- return -EIO;
- }
-
- hash_tbl_alloc();
-
- return 0;
-}
-
-static void signal_handler(int sig, siginfo_t *siginfo, void *context)
-{
- static bool warned;
-
- /* Prevent stop if clients are connected */
- if (server.nfds != 1) {
- if (!warned) {
- syslog(LOG_WARNING,
- "Can't stop while active client exist, resend SIGINT to
overid");
- warned = true;
- return;
- }
- }
-
- if (sig == SIGINT) {
- server.run = false;
- fini();
- }
-
- exit(0);
-}
-
-static int init(void)
-{
- int rc;
- struct sigaction sig = {};
-
- rc = init_listener();
- if (rc) {
- return rc;
- }
-
- rc = init_umad();
- if (rc) {
- return rc;
- }
-
- pthread_rwlock_init(&server.lock, 0);
-
- rc = pthread_create(&server.umad_recv_thread, NULL, umad_recv_thread_func,
- NULL);
- if (rc) {
- syslog(LOG_ERR, "Fail to create UMAD receiver thread (%d)\n", rc);
- return rc;
- }
-
- sig.sa_sigaction = &signal_handler;
- sig.sa_flags = SA_SIGINFO;
- rc = sigaction(SIGINT, &sig, NULL);
- if (rc < 0) {
- syslog(LOG_ERR, "Fail to install SIGINT handler (%d)\n", errno);
- return rc;
- }
-
- return 0;
-}
-
-int main(int argc, char *argv[])
-{
- int rc;
-
- memset(&server, 0, sizeof(server));
-
- parse_args(argc, argv);
-
- rc = init();
- if (rc) {
- syslog(LOG_ERR, "Fail to initialize server (%d)\n", rc);
- rc = -EAGAIN;
- goto out;
- }
-
- run();
-
-out:
- fini();
-
- return rc;
-}
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 4b72009cd3..c20829b9ae 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -12,7 +12,6 @@
#include "hw/boards.h"
#include "hw/intc/intc.h"
#include "hw/mem/memory-device.h"
-#include "hw/rdma/rdma.h"
#include "qapi/error.h"
#include "qapi/qapi-builtin-visit.h"
#include "qapi/qapi-commands-machine.h"
@@ -291,37 +290,6 @@ MemoryInfo *qmp_query_memory_size_summary(Error **errp)
return mem_info;
}
-static int qmp_x_query_rdma_foreach(Object *obj, void *opaque)
-{
- RdmaProvider *rdma;
- RdmaProviderClass *k;
- GString *buf = opaque;
-
- if (object_dynamic_cast(obj, INTERFACE_RDMA_PROVIDER)) {
- rdma = RDMA_PROVIDER(obj);
- k = RDMA_PROVIDER_GET_CLASS(obj);
- if (k->format_statistics) {
- k->format_statistics(rdma, buf);
- } else {
- g_string_append_printf(buf,
- "RDMA statistics not available for %s.\n",
- object_get_typename(obj));
- }
- }
-
- return 0;
-}
-
-HumanReadableText *qmp_x_query_rdma(Error **errp)
-{
- g_autoptr(GString) buf = g_string_new("");
-
- object_child_foreach_recursive(object_get_root(),
- qmp_x_query_rdma_foreach, buf);
-
- return human_readable_text_from_str(buf);
-}
-
HumanReadableText *qmp_x_query_ramblock(Error **errp)
{
g_autoptr(GString) buf = ram_block_format();
diff --git a/hw/rdma/rdma.c b/hw/rdma/rdma.c
deleted file mode 100644
index 7bec0d0d2c..0000000000
--- a/hw/rdma/rdma.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * RDMA device interface
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "hw/rdma/rdma.h"
-#include "qemu/module.h"
-
-static const TypeInfo rdma_hmp_info = {
- .name = INTERFACE_RDMA_PROVIDER,
- .parent = TYPE_INTERFACE,
- .class_size = sizeof(RdmaProviderClass),
-};
-
-static void rdma_register_types(void)
-{
- type_register_static(&rdma_hmp_info);
-}
-
-type_init(rdma_register_types)
diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c
deleted file mode 100644
index 6dcdfbbbe2..0000000000
--- a/hw/rdma/rdma_backend.c
+++ /dev/null
@@ -1,1401 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Generic RDMA backend
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/qapi-events-rdma.h"
-
-#include <infiniband/verbs.h>
-
-#include "contrib/rdmacm-mux/rdmacm-mux.h"
-#include "trace.h"
-#include "rdma_utils.h"
-#include "rdma_rm.h"
-#include "rdma_backend.h"
-
-#define THR_NAME_LEN 16
-#define THR_POLL_TO 5000
-
-#define MAD_HDR_SIZE sizeof(struct ibv_grh)
-
-typedef struct BackendCtx {
- void *up_ctx;
- struct ibv_sge sge; /* Used to save MAD recv buffer */
- RdmaBackendQP *backend_qp; /* To maintain recv buffers */
- RdmaBackendSRQ *backend_srq;
-} BackendCtx;
-
-struct backend_umad {
- struct ib_user_mad hdr;
- char mad[RDMA_MAX_PRIVATE_DATA];
-};
-
-static void (*comp_handler)(void *ctx, struct ibv_wc *wc);
-
-static void dummy_comp_handler(void *ctx, struct ibv_wc *wc)
-{
- rdma_error_report("No completion handler is registered");
-}
-
-static inline void complete_work(enum ibv_wc_status status, uint32_t
vendor_err,
- void *ctx)
-{
- struct ibv_wc wc = {};
-
- wc.status = status;
- wc.vendor_err = vendor_err;
-
- comp_handler(ctx, &wc);
-}
-
-static void free_cqe_ctx(gpointer data, gpointer user_data)
-{
- BackendCtx *bctx;
- RdmaDeviceResources *rdma_dev_res = user_data;
- unsigned long cqe_ctx_id = GPOINTER_TO_INT(data);
-
- bctx = rdma_rm_get_cqe_ctx(rdma_dev_res, cqe_ctx_id);
- if (bctx) {
- rdma_rm_dealloc_cqe_ctx(rdma_dev_res, cqe_ctx_id);
- qatomic_dec(&rdma_dev_res->stats.missing_cqe);
- }
- g_free(bctx);
-}
-
-static void clean_recv_mads(RdmaBackendDev *backend_dev)
-{
- unsigned long cqe_ctx_id;
-
- do {
- cqe_ctx_id = rdma_protected_gqueue_pop_int64(&backend_dev->
- recv_mads_list);
- if (cqe_ctx_id != -ENOENT) {
- qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe);
- free_cqe_ctx(GINT_TO_POINTER(cqe_ctx_id),
- backend_dev->rdma_dev_res);
- }
- } while (cqe_ctx_id != -ENOENT);
-}
-
-static int rdma_poll_cq(RdmaDeviceResources *rdma_dev_res, struct ibv_cq *ibcq)
-{
- int i, ne, total_ne = 0;
- BackendCtx *bctx;
- struct ibv_wc wc[2];
- RdmaProtectedGSList *cqe_ctx_list;
-
- WITH_QEMU_LOCK_GUARD(&rdma_dev_res->lock) {
- do {
- ne = ibv_poll_cq(ibcq, ARRAY_SIZE(wc), wc);
-
- trace_rdma_poll_cq(ne, ibcq);
-
- for (i = 0; i < ne; i++) {
- bctx = rdma_rm_get_cqe_ctx(rdma_dev_res, wc[i].wr_id);
- if (unlikely(!bctx)) {
- rdma_error_report("No matching ctx for req %"PRId64,
- wc[i].wr_id);
- continue;
- }
-
- comp_handler(bctx->up_ctx, &wc[i]);
-
- if (bctx->backend_qp) {
- cqe_ctx_list = &bctx->backend_qp->cqe_ctx_list;
- } else {
- cqe_ctx_list = &bctx->backend_srq->cqe_ctx_list;
- }
-
- rdma_protected_gslist_remove_int32(cqe_ctx_list, wc[i].wr_id);
- rdma_rm_dealloc_cqe_ctx(rdma_dev_res, wc[i].wr_id);
- g_free(bctx);
- }
- total_ne += ne;
- } while (ne > 0);
- qatomic_sub(&rdma_dev_res->stats.missing_cqe, total_ne);
- }
-
- if (ne < 0) {
- rdma_error_report("ibv_poll_cq fail, rc=%d, errno=%d", ne, errno);
- }
-
- rdma_dev_res->stats.completions += total_ne;
-
- return total_ne;
-}
-
-static void *comp_handler_thread(void *arg)
-{
- RdmaBackendDev *backend_dev = (RdmaBackendDev *)arg;
- int rc;
- struct ibv_cq *ev_cq;
- void *ev_ctx;
- int flags;
- GPollFD pfds[1];
-
- /* Change to non-blocking mode */
- flags = fcntl(backend_dev->channel->fd, F_GETFL);
- rc = fcntl(backend_dev->channel->fd, F_SETFL, flags | O_NONBLOCK);
- if (rc < 0) {
- rdma_error_report("Failed to change backend channel FD to
non-blocking");
- return NULL;
- }
-
- pfds[0].fd = backend_dev->channel->fd;
- pfds[0].events = G_IO_IN | G_IO_HUP | G_IO_ERR;
-
- backend_dev->comp_thread.is_running = true;
-
- while (backend_dev->comp_thread.run) {
- do {
- rc = qemu_poll_ns(pfds, 1, THR_POLL_TO * (int64_t)SCALE_MS);
- if (!rc) {
- backend_dev->rdma_dev_res->stats.poll_cq_ppoll_to++;
- }
- } while (!rc && backend_dev->comp_thread.run);
-
- if (backend_dev->comp_thread.run) {
- rc = ibv_get_cq_event(backend_dev->channel, &ev_cq, &ev_ctx);
- if (unlikely(rc)) {
- rdma_error_report("ibv_get_cq_event fail, rc=%d, errno=%d", rc,
- errno);
- continue;
- }
-
- rc = ibv_req_notify_cq(ev_cq, 0);
- if (unlikely(rc)) {
- rdma_error_report("ibv_req_notify_cq fail, rc=%d, errno=%d",
rc,
- errno);
- }
-
- backend_dev->rdma_dev_res->stats.poll_cq_from_bk++;
- rdma_poll_cq(backend_dev->rdma_dev_res, ev_cq);
-
- ibv_ack_cq_events(ev_cq, 1);
- }
- }
-
- backend_dev->comp_thread.is_running = false;
-
- qemu_thread_exit(0);
-
- return NULL;
-}
-
-static inline void disable_rdmacm_mux_async(RdmaBackendDev *backend_dev)
-{
- qatomic_set(&backend_dev->rdmacm_mux.can_receive, 0);
-}
-
-static inline void enable_rdmacm_mux_async(RdmaBackendDev *backend_dev)
-{
- qatomic_set(&backend_dev->rdmacm_mux.can_receive, sizeof(RdmaCmMuxMsg));
-}
-
-static inline int rdmacm_mux_can_process_async(RdmaBackendDev *backend_dev)
-{
- return qatomic_read(&backend_dev->rdmacm_mux.can_receive);
-}
-
-static int rdmacm_mux_check_op_status(CharBackend *mad_chr_be)
-{
- RdmaCmMuxMsg msg = {};
- int ret;
-
- ret = qemu_chr_fe_read_all(mad_chr_be, (uint8_t *)&msg, sizeof(msg));
- if (ret != sizeof(msg)) {
- rdma_error_report("Got invalid message from mux: size %d, expecting
%d",
- ret, (int)sizeof(msg));
- return -EIO;
- }
-
- trace_rdmacm_mux_check_op_status(msg.hdr.msg_type, msg.hdr.op_code,
- msg.hdr.err_code);
-
- if (msg.hdr.msg_type != RDMACM_MUX_MSG_TYPE_RESP) {
- rdma_error_report("Got invalid message type %d", msg.hdr.msg_type);
- return -EIO;
- }
-
- if (msg.hdr.err_code != RDMACM_MUX_ERR_CODE_OK) {
- rdma_error_report("Operation failed in mux, error code %d",
- msg.hdr.err_code);
- return -EIO;
- }
-
- return 0;
-}
-
-static int rdmacm_mux_send(RdmaBackendDev *backend_dev, RdmaCmMuxMsg *msg)
-{
- int rc = 0;
-
- msg->hdr.msg_type = RDMACM_MUX_MSG_TYPE_REQ;
- trace_rdmacm_mux("send", msg->hdr.msg_type, msg->hdr.op_code);
- disable_rdmacm_mux_async(backend_dev);
- rc = qemu_chr_fe_write(backend_dev->rdmacm_mux.chr_be,
- (const uint8_t *)msg, sizeof(*msg));
- if (rc != sizeof(*msg)) {
- enable_rdmacm_mux_async(backend_dev);
- rdma_error_report("Failed to send request to rdmacm_mux (rc=%d)", rc);
- return -EIO;
- }
-
- rc = rdmacm_mux_check_op_status(backend_dev->rdmacm_mux.chr_be);
- if (rc) {
- rdma_error_report("Failed to execute rdmacm_mux request %d (rc=%d)",
- msg->hdr.op_code, rc);
- }
-
- enable_rdmacm_mux_async(backend_dev);
-
- return 0;
-}
-
-static void stop_backend_thread(RdmaBackendThread *thread)
-{
- thread->run = false;
- while (thread->is_running) {
- sleep(THR_POLL_TO / SCALE_US / 2);
- }
-}
-
-static void start_comp_thread(RdmaBackendDev *backend_dev)
-{
- char thread_name[THR_NAME_LEN] = {};
-
- stop_backend_thread(&backend_dev->comp_thread);
-
- snprintf(thread_name, sizeof(thread_name), "rdma_comp_%s",
- ibv_get_device_name(backend_dev->ib_dev));
- backend_dev->comp_thread.run = true;
- qemu_thread_create(&backend_dev->comp_thread.thread, thread_name,
- comp_handler_thread, backend_dev, QEMU_THREAD_DETACHED);
-}
-
-void rdma_backend_register_comp_handler(void (*handler)(void *ctx,
- struct ibv_wc *wc))
-{
- comp_handler = handler;
-}
-
-void rdma_backend_unregister_comp_handler(void)
-{
- rdma_backend_register_comp_handler(dummy_comp_handler);
-}
-
-int rdma_backend_query_port(RdmaBackendDev *backend_dev,
- struct ibv_port_attr *port_attr)
-{
- int rc;
-
- rc = ibv_query_port(backend_dev->context, backend_dev->port_num,
port_attr);
- if (rc) {
- rdma_error_report("ibv_query_port fail, rc=%d, errno=%d", rc, errno);
- return -EIO;
- }
-
- return 0;
-}
-
-void rdma_backend_poll_cq(RdmaDeviceResources *rdma_dev_res, RdmaBackendCQ *cq)
-{
- int polled;
-
- rdma_dev_res->stats.poll_cq_from_guest++;
- polled = rdma_poll_cq(rdma_dev_res, cq->ibcq);
- if (!polled) {
- rdma_dev_res->stats.poll_cq_from_guest_empty++;
- }
-}
-
-static GHashTable *ah_hash;
-
-static struct ibv_ah *create_ah(RdmaBackendDev *backend_dev, struct ibv_pd *pd,
- uint8_t sgid_idx, union ibv_gid *dgid)
-{
- GBytes *ah_key = g_bytes_new(dgid, sizeof(*dgid));
- struct ibv_ah *ah = g_hash_table_lookup(ah_hash, ah_key);
-
- if (ah) {
- trace_rdma_create_ah_cache_hit(be64_to_cpu(dgid->global.subnet_prefix),
- be64_to_cpu(dgid->global.interface_id));
- g_bytes_unref(ah_key);
- } else {
- struct ibv_ah_attr ah_attr = {
- .is_global = 1,
- .port_num = backend_dev->port_num,
- .grh.hop_limit = 1,
- };
-
- ah_attr.grh.dgid = *dgid;
- ah_attr.grh.sgid_index = sgid_idx;
-
- ah = ibv_create_ah(pd, &ah_attr);
- if (ah) {
- g_hash_table_insert(ah_hash, ah_key, ah);
- } else {
- g_bytes_unref(ah_key);
- rdma_error_report("Failed to create AH for gid <0x%" PRIx64",
0x%"PRIx64">",
- be64_to_cpu(dgid->global.subnet_prefix),
- be64_to_cpu(dgid->global.interface_id));
- }
-
-
trace_rdma_create_ah_cache_miss(be64_to_cpu(dgid->global.subnet_prefix),
-
be64_to_cpu(dgid->global.interface_id));
- }
-
- return ah;
-}
-
-static void destroy_ah_hash_key(gpointer data)
-{
- g_bytes_unref(data);
-}
-
-static void destroy_ah_hast_data(gpointer data)
-{
- struct ibv_ah *ah = data;
-
- ibv_destroy_ah(ah);
-}
-
-static void ah_cache_init(void)
-{
- ah_hash = g_hash_table_new_full(g_bytes_hash, g_bytes_equal,
- destroy_ah_hash_key, destroy_ah_hast_data);
-}
-
-#ifdef LEGACY_RDMA_REG_MR
-static int build_host_sge_array(RdmaDeviceResources *rdma_dev_res,
- struct ibv_sge *sge, uint8_t num_sge,
- uint64_t *total_length)
-{
- RdmaRmMR *mr;
- int idx;
-
- for (idx = 0; idx < num_sge; idx++) {
- mr = rdma_rm_get_mr(rdma_dev_res, sge[idx].lkey);
- if (unlikely(!mr)) {
- rdma_error_report("Invalid lkey 0x%x", sge[idx].lkey);
- return VENDOR_ERR_INVLKEY | sge[idx].lkey;
- }
-
- sge[idx].addr = (uintptr_t)mr->virt + sge[idx].addr - mr->start;
- sge[idx].lkey = rdma_backend_mr_lkey(&mr->backend_mr);
-
- *total_length += sge[idx].length;
- }
-
- return 0;
-}
-#else
-static inline int build_host_sge_array(RdmaDeviceResources *rdma_dev_res,
- struct ibv_sge *sge, uint8_t num_sge,
- uint64_t *total_length)
-{
- int idx;
-
- for (idx = 0; idx < num_sge; idx++) {
- *total_length += sge[idx].length;
- }
- return 0;
-}
-#endif
-
-static void trace_mad_message(const char *title, char *buf, int len)
-{
- int i;
- char *b = g_malloc0(len * 3 + 1);
- char b1[4];
-
- for (i = 0; i < len; i++) {
- sprintf(b1, "%.2X ", buf[i] & 0x000000FF);
- strcat(b, b1);
- }
-
- trace_rdma_mad_message(title, len, b);
-
- g_free(b);
-}
-
-static int mad_send(RdmaBackendDev *backend_dev, uint8_t sgid_idx,
- union ibv_gid *sgid, struct ibv_sge *sge, uint32_t num_sge)
-{
- RdmaCmMuxMsg msg = {};
- char *hdr, *data;
- int ret;
-
- if (num_sge != 2) {
- return -EINVAL;
- }
-
- msg.hdr.op_code = RDMACM_MUX_OP_CODE_MAD;
- memcpy(msg.hdr.sgid.raw, sgid->raw, sizeof(msg.hdr.sgid));
-
- msg.umad_len = sge[0].length + sge[1].length;
-
- if (msg.umad_len > sizeof(msg.umad.mad)) {
- return -ENOMEM;
- }
-
- msg.umad.hdr.addr.qpn = htobe32(1);
- msg.umad.hdr.addr.grh_present = 1;
- msg.umad.hdr.addr.gid_index = sgid_idx;
- memcpy(msg.umad.hdr.addr.gid, sgid->raw, sizeof(msg.umad.hdr.addr.gid));
- msg.umad.hdr.addr.hop_limit = 0xFF;
-
- hdr = rdma_pci_dma_map(backend_dev->dev, sge[0].addr, sge[0].length);
- if (!hdr) {
- return -ENOMEM;
- }
- data = rdma_pci_dma_map(backend_dev->dev, sge[1].addr, sge[1].length);
- if (!data) {
- rdma_pci_dma_unmap(backend_dev->dev, hdr, sge[0].length);
- return -ENOMEM;
- }
-
- memcpy(&msg.umad.mad[0], hdr, sge[0].length);
- memcpy(&msg.umad.mad[sge[0].length], data, sge[1].length);
-
- rdma_pci_dma_unmap(backend_dev->dev, data, sge[1].length);
- rdma_pci_dma_unmap(backend_dev->dev, hdr, sge[0].length);
-
- trace_mad_message("send", msg.umad.mad, msg.umad_len);
-
- ret = rdmacm_mux_send(backend_dev, &msg);
- if (ret) {
- rdma_error_report("Failed to send MAD to rdma_umadmux (%d)", ret);
- return -EIO;
- }
-
- return 0;
-}
-
-void rdma_backend_post_send(RdmaBackendDev *backend_dev,
- RdmaBackendQP *qp, uint8_t qp_type,
- struct ibv_sge *sge, uint32_t num_sge,
- uint8_t sgid_idx, union ibv_gid *sgid,
- union ibv_gid *dgid, uint32_t dqpn, uint32_t dqkey,
- void *ctx)
-{
- BackendCtx *bctx;
- uint32_t bctx_id;
- int rc;
- struct ibv_send_wr wr = {}, *bad_wr;
-
- if (!qp->ibqp) { /* This field is not initialized for QP0 and QP1 */
- if (qp_type == IBV_QPT_SMI) {
- rdma_error_report("Got QP0 request");
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_QP0, ctx);
- } else if (qp_type == IBV_QPT_GSI) {
- rc = mad_send(backend_dev, sgid_idx, sgid, sge, num_sge);
- if (rc) {
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_MAD_SEND, ctx);
- backend_dev->rdma_dev_res->stats.mad_tx_err++;
- } else {
- complete_work(IBV_WC_SUCCESS, 0, ctx);
- backend_dev->rdma_dev_res->stats.mad_tx++;
- }
- }
- return;
- }
-
- bctx = g_malloc0(sizeof(*bctx));
- bctx->up_ctx = ctx;
- bctx->backend_qp = qp;
-
- rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx);
- if (unlikely(rc)) {
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx);
- goto err_free_bctx;
- }
-
- rdma_protected_gslist_append_int32(&qp->cqe_ctx_list, bctx_id);
-
- rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge,
- &backend_dev->rdma_dev_res->stats.tx_len);
- if (rc) {
- complete_work(IBV_WC_GENERAL_ERR, rc, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- if (qp_type == IBV_QPT_UD) {
- wr.wr.ud.ah = create_ah(backend_dev, qp->ibpd, sgid_idx, dgid);
- if (!wr.wr.ud.ah) {
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx);
- goto err_dealloc_cqe_ctx;
- }
- wr.wr.ud.remote_qpn = dqpn;
- wr.wr.ud.remote_qkey = dqkey;
- }
-
- wr.num_sge = num_sge;
- wr.opcode = IBV_WR_SEND;
- wr.send_flags = IBV_SEND_SIGNALED;
- wr.sg_list = sge;
- wr.wr_id = bctx_id;
-
- rc = ibv_post_send(qp->ibqp, &wr, &bad_wr);
- if (rc) {
- rdma_error_report("ibv_post_send fail, qpn=0x%x, rc=%d, errno=%d",
- qp->ibqp->qp_num, rc, errno);
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe);
- backend_dev->rdma_dev_res->stats.tx++;
-
- return;
-
-err_dealloc_cqe_ctx:
- backend_dev->rdma_dev_res->stats.tx_err++;
- rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id);
-
-err_free_bctx:
- g_free(bctx);
-}
-
-static unsigned int save_mad_recv_buffer(RdmaBackendDev *backend_dev,
- struct ibv_sge *sge, uint32_t num_sge,
- void *ctx)
-{
- BackendCtx *bctx;
- int rc;
- uint32_t bctx_id;
-
- if (num_sge != 1) {
- rdma_error_report("Invalid num_sge (%d), expecting 1", num_sge);
- return VENDOR_ERR_INV_NUM_SGE;
- }
-
- if (sge[0].length < RDMA_MAX_PRIVATE_DATA + sizeof(struct ibv_grh)) {
- rdma_error_report("Too small buffer for MAD");
- return VENDOR_ERR_INV_MAD_BUFF;
- }
-
- bctx = g_malloc0(sizeof(*bctx));
-
- rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx);
- if (unlikely(rc)) {
- g_free(bctx);
- return VENDOR_ERR_NOMEM;
- }
-
- bctx->up_ctx = ctx;
- bctx->sge = *sge;
-
- rdma_protected_gqueue_append_int64(&backend_dev->recv_mads_list, bctx_id);
-
- return 0;
-}
-
-void rdma_backend_post_recv(RdmaBackendDev *backend_dev,
- RdmaBackendQP *qp, uint8_t qp_type,
- struct ibv_sge *sge, uint32_t num_sge, void *ctx)
-{
- BackendCtx *bctx;
- uint32_t bctx_id;
- int rc;
- struct ibv_recv_wr wr = {}, *bad_wr;
-
- if (!qp->ibqp) { /* This field does not get initialized for QP0 and QP1 */
- if (qp_type == IBV_QPT_SMI) {
- rdma_error_report("Got QP0 request");
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_QP0, ctx);
- }
- if (qp_type == IBV_QPT_GSI) {
- rc = save_mad_recv_buffer(backend_dev, sge, num_sge, ctx);
- if (rc) {
- complete_work(IBV_WC_GENERAL_ERR, rc, ctx);
- backend_dev->rdma_dev_res->stats.mad_rx_bufs_err++;
- } else {
- backend_dev->rdma_dev_res->stats.mad_rx_bufs++;
- }
- }
- return;
- }
-
- bctx = g_malloc0(sizeof(*bctx));
- bctx->up_ctx = ctx;
- bctx->backend_qp = qp;
-
- rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx);
- if (unlikely(rc)) {
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx);
- goto err_free_bctx;
- }
-
- rdma_protected_gslist_append_int32(&qp->cqe_ctx_list, bctx_id);
-
- rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge,
- &backend_dev->rdma_dev_res->stats.rx_bufs_len);
- if (rc) {
- complete_work(IBV_WC_GENERAL_ERR, rc, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- wr.num_sge = num_sge;
- wr.sg_list = sge;
- wr.wr_id = bctx_id;
- rc = ibv_post_recv(qp->ibqp, &wr, &bad_wr);
- if (rc) {
- rdma_error_report("ibv_post_recv fail, qpn=0x%x, rc=%d, errno=%d",
- qp->ibqp->qp_num, rc, errno);
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe);
- backend_dev->rdma_dev_res->stats.rx_bufs++;
-
- return;
-
-err_dealloc_cqe_ctx:
- backend_dev->rdma_dev_res->stats.rx_bufs_err++;
- rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id);
-
-err_free_bctx:
- g_free(bctx);
-}
-
-void rdma_backend_post_srq_recv(RdmaBackendDev *backend_dev,
- RdmaBackendSRQ *srq, struct ibv_sge *sge,
- uint32_t num_sge, void *ctx)
-{
- BackendCtx *bctx;
- uint32_t bctx_id;
- int rc;
- struct ibv_recv_wr wr = {}, *bad_wr;
-
- bctx = g_malloc0(sizeof(*bctx));
- bctx->up_ctx = ctx;
- bctx->backend_srq = srq;
-
- rc = rdma_rm_alloc_cqe_ctx(backend_dev->rdma_dev_res, &bctx_id, bctx);
- if (unlikely(rc)) {
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_NOMEM, ctx);
- goto err_free_bctx;
- }
-
- rdma_protected_gslist_append_int32(&srq->cqe_ctx_list, bctx_id);
-
- rc = build_host_sge_array(backend_dev->rdma_dev_res, sge, num_sge,
- &backend_dev->rdma_dev_res->stats.rx_bufs_len);
- if (rc) {
- complete_work(IBV_WC_GENERAL_ERR, rc, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- wr.num_sge = num_sge;
- wr.sg_list = sge;
- wr.wr_id = bctx_id;
- rc = ibv_post_srq_recv(srq->ibsrq, &wr, &bad_wr);
- if (rc) {
- rdma_error_report("ibv_post_srq_recv fail, srqn=0x%x, rc=%d, errno=%d",
- srq->ibsrq->handle, rc, errno);
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_FAIL_BACKEND, ctx);
- goto err_dealloc_cqe_ctx;
- }
-
- qatomic_inc(&backend_dev->rdma_dev_res->stats.missing_cqe);
- backend_dev->rdma_dev_res->stats.rx_bufs++;
- backend_dev->rdma_dev_res->stats.rx_srq++;
-
- return;
-
-err_dealloc_cqe_ctx:
- backend_dev->rdma_dev_res->stats.rx_bufs_err++;
- rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, bctx_id);
-
-err_free_bctx:
- g_free(bctx);
-}
-
-int rdma_backend_create_pd(RdmaBackendDev *backend_dev, RdmaBackendPD *pd)
-{
- pd->ibpd = ibv_alloc_pd(backend_dev->context);
-
- if (!pd->ibpd) {
- rdma_error_report("ibv_alloc_pd fail, errno=%d", errno);
- return -EIO;
- }
-
- return 0;
-}
-
-void rdma_backend_destroy_pd(RdmaBackendPD *pd)
-{
- if (pd->ibpd) {
- ibv_dealloc_pd(pd->ibpd);
- }
-}
-
-int rdma_backend_create_mr(RdmaBackendMR *mr, RdmaBackendPD *pd, void *addr,
- size_t length, uint64_t guest_start, int access)
-{
-#ifdef LEGACY_RDMA_REG_MR
- mr->ibmr = ibv_reg_mr(pd->ibpd, addr, length, access);
-#else
- mr->ibmr = ibv_reg_mr_iova(pd->ibpd, addr, length, guest_start, access);
-#endif
- if (!mr->ibmr) {
- rdma_error_report("ibv_reg_mr fail, errno=%d", errno);
- return -EIO;
- }
-
- mr->ibpd = pd->ibpd;
-
- return 0;
-}
-
-void rdma_backend_destroy_mr(RdmaBackendMR *mr)
-{
- if (mr->ibmr) {
- ibv_dereg_mr(mr->ibmr);
- }
-}
-
-int rdma_backend_create_cq(RdmaBackendDev *backend_dev, RdmaBackendCQ *cq,
- int cqe)
-{
- int rc;
-
- cq->ibcq = ibv_create_cq(backend_dev->context, cqe + 1, NULL,
- backend_dev->channel, 0);
- if (!cq->ibcq) {
- rdma_error_report("ibv_create_cq fail, errno=%d", errno);
- return -EIO;
- }
-
- rc = ibv_req_notify_cq(cq->ibcq, 0);
- if (rc) {
- rdma_warn_report("ibv_req_notify_cq fail, rc=%d, errno=%d", rc, errno);
- }
-
- cq->backend_dev = backend_dev;
-
- return 0;
-}
-
-void rdma_backend_destroy_cq(RdmaBackendCQ *cq)
-{
- if (cq->ibcq) {
- ibv_destroy_cq(cq->ibcq);
- }
-}
-
-int rdma_backend_create_qp(RdmaBackendQP *qp, uint8_t qp_type,
- RdmaBackendPD *pd, RdmaBackendCQ *scq,
- RdmaBackendCQ *rcq, RdmaBackendSRQ *srq,
- uint32_t max_send_wr, uint32_t max_recv_wr,
- uint32_t max_send_sge, uint32_t max_recv_sge)
-{
- struct ibv_qp_init_attr attr = {};
-
- qp->ibqp = 0;
-
- switch (qp_type) {
- case IBV_QPT_GSI:
- return 0;
-
- case IBV_QPT_RC:
- /* fall through */
- case IBV_QPT_UD:
- /* do nothing */
- break;
-
- default:
- rdma_error_report("Unsupported QP type %d", qp_type);
- return -EIO;
- }
-
- attr.qp_type = qp_type;
- attr.send_cq = scq->ibcq;
- attr.recv_cq = rcq->ibcq;
- attr.cap.max_send_wr = max_send_wr;
- attr.cap.max_recv_wr = max_recv_wr;
- attr.cap.max_send_sge = max_send_sge;
- attr.cap.max_recv_sge = max_recv_sge;
- if (srq) {
- attr.srq = srq->ibsrq;
- }
-
- qp->ibqp = ibv_create_qp(pd->ibpd, &attr);
- if (!qp->ibqp) {
- rdma_error_report("ibv_create_qp fail, errno=%d", errno);
- return -EIO;
- }
-
- rdma_protected_gslist_init(&qp->cqe_ctx_list);
-
- qp->ibpd = pd->ibpd;
-
- /* TODO: Query QP to get max_inline_data and save it to be used in send */
-
- return 0;
-}
-
-int rdma_backend_qp_state_init(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
- uint8_t qp_type, uint32_t qkey)
-{
- struct ibv_qp_attr attr = {};
- int rc, attr_mask;
-
- attr_mask = IBV_QP_STATE | IBV_QP_PKEY_INDEX | IBV_QP_PORT;
- attr.qp_state = IBV_QPS_INIT;
- attr.pkey_index = 0;
- attr.port_num = backend_dev->port_num;
-
- switch (qp_type) {
- case IBV_QPT_RC:
- attr_mask |= IBV_QP_ACCESS_FLAGS;
- trace_rdma_backend_rc_qp_state_init(qp->ibqp->qp_num);
- break;
-
- case IBV_QPT_UD:
- attr.qkey = qkey;
- attr_mask |= IBV_QP_QKEY;
- trace_rdma_backend_ud_qp_state_init(qp->ibqp->qp_num, qkey);
- break;
-
- default:
- rdma_error_report("Unsupported QP type %d", qp_type);
- return -EIO;
- }
-
- rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask);
- if (rc) {
- rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno);
- return -EIO;
- }
-
- return 0;
-}
-
-int rdma_backend_qp_state_rtr(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
- uint8_t qp_type, uint8_t sgid_idx,
- union ibv_gid *dgid, uint32_t dqpn,
- uint32_t rq_psn, uint32_t qkey, bool use_qkey)
-{
- struct ibv_qp_attr attr = {};
- union ibv_gid ibv_gid = {
- .global.interface_id = dgid->global.interface_id,
- .global.subnet_prefix = dgid->global.subnet_prefix
- };
- int rc, attr_mask;
-
- attr.qp_state = IBV_QPS_RTR;
- attr_mask = IBV_QP_STATE;
-
- qp->sgid_idx = sgid_idx;
-
- switch (qp_type) {
- case IBV_QPT_RC:
- attr.path_mtu = IBV_MTU_1024;
- attr.dest_qp_num = dqpn;
- attr.max_dest_rd_atomic = 1;
- attr.min_rnr_timer = 12;
- attr.ah_attr.port_num = backend_dev->port_num;
- attr.ah_attr.is_global = 1;
- attr.ah_attr.grh.hop_limit = 1;
- attr.ah_attr.grh.dgid = ibv_gid;
- attr.ah_attr.grh.sgid_index = qp->sgid_idx;
- attr.rq_psn = rq_psn;
-
- attr_mask |= IBV_QP_AV | IBV_QP_PATH_MTU | IBV_QP_DEST_QPN |
- IBV_QP_RQ_PSN | IBV_QP_MAX_DEST_RD_ATOMIC |
- IBV_QP_MIN_RNR_TIMER;
-
- trace_rdma_backend_rc_qp_state_rtr(qp->ibqp->qp_num,
- be64_to_cpu(ibv_gid.global.
- subnet_prefix),
- be64_to_cpu(ibv_gid.global.
- interface_id),
- qp->sgid_idx, dqpn, rq_psn);
- break;
-
- case IBV_QPT_UD:
- if (use_qkey) {
- attr.qkey = qkey;
- attr_mask |= IBV_QP_QKEY;
- }
- trace_rdma_backend_ud_qp_state_rtr(qp->ibqp->qp_num, use_qkey ? qkey :
- 0);
- break;
- }
-
- rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask);
- if (rc) {
- rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno);
- return -EIO;
- }
-
- return 0;
-}
-
-int rdma_backend_qp_state_rts(RdmaBackendQP *qp, uint8_t qp_type,
- uint32_t sq_psn, uint32_t qkey, bool use_qkey)
-{
- struct ibv_qp_attr attr = {};
- int rc, attr_mask;
-
- attr.qp_state = IBV_QPS_RTS;
- attr.sq_psn = sq_psn;
- attr_mask = IBV_QP_STATE | IBV_QP_SQ_PSN;
-
- switch (qp_type) {
- case IBV_QPT_RC:
- attr.timeout = 14;
- attr.retry_cnt = 7;
- attr.rnr_retry = 7;
- attr.max_rd_atomic = 1;
-
- attr_mask |= IBV_QP_TIMEOUT | IBV_QP_RETRY_CNT | IBV_QP_RNR_RETRY |
- IBV_QP_MAX_QP_RD_ATOMIC;
- trace_rdma_backend_rc_qp_state_rts(qp->ibqp->qp_num, sq_psn);
- break;
-
- case IBV_QPT_UD:
- if (use_qkey) {
- attr.qkey = qkey;
- attr_mask |= IBV_QP_QKEY;
- }
- trace_rdma_backend_ud_qp_state_rts(qp->ibqp->qp_num, sq_psn,
- use_qkey ? qkey : 0);
- break;
- }
-
- rc = ibv_modify_qp(qp->ibqp, &attr, attr_mask);
- if (rc) {
- rdma_error_report("ibv_modify_qp fail, rc=%d, errno=%d", rc, errno);
- return -EIO;
- }
-
- return 0;
-}
-
-int rdma_backend_query_qp(RdmaBackendQP *qp, struct ibv_qp_attr *attr,
- int attr_mask, struct ibv_qp_init_attr *init_attr)
-{
- if (!qp->ibqp) {
- attr->qp_state = IBV_QPS_RTS;
- return 0;
- }
-
- return ibv_query_qp(qp->ibqp, attr, attr_mask, init_attr);
-}
-
-void rdma_backend_destroy_qp(RdmaBackendQP *qp, RdmaDeviceResources *dev_res)
-{
- if (qp->ibqp) {
- ibv_destroy_qp(qp->ibqp);
- }
- g_slist_foreach(qp->cqe_ctx_list.list, free_cqe_ctx, dev_res);
- rdma_protected_gslist_destroy(&qp->cqe_ctx_list);
-}
-
-int rdma_backend_create_srq(RdmaBackendSRQ *srq, RdmaBackendPD *pd,
- uint32_t max_wr, uint32_t max_sge,
- uint32_t srq_limit)
-{
- struct ibv_srq_init_attr srq_init_attr = {};
-
- srq_init_attr.attr.max_wr = max_wr;
- srq_init_attr.attr.max_sge = max_sge;
- srq_init_attr.attr.srq_limit = srq_limit;
-
- srq->ibsrq = ibv_create_srq(pd->ibpd, &srq_init_attr);
- if (!srq->ibsrq) {
- rdma_error_report("ibv_create_srq failed, errno=%d", errno);
- return -EIO;
- }
-
- rdma_protected_gslist_init(&srq->cqe_ctx_list);
-
- return 0;
-}
-
-int rdma_backend_query_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr)
-{
- if (!srq->ibsrq) {
- return -EINVAL;
- }
-
- return ibv_query_srq(srq->ibsrq, srq_attr);
-}
-
-int rdma_backend_modify_srq(RdmaBackendSRQ *srq, struct ibv_srq_attr *srq_attr,
- int srq_attr_mask)
-{
- if (!srq->ibsrq) {
- return -EINVAL;
- }
-
- return ibv_modify_srq(srq->ibsrq, srq_attr, srq_attr_mask);
-}
-
-void rdma_backend_destroy_srq(RdmaBackendSRQ *srq, RdmaDeviceResources
*dev_res)
-{
- if (srq->ibsrq) {
- ibv_destroy_srq(srq->ibsrq);
- }
- g_slist_foreach(srq->cqe_ctx_list.list, free_cqe_ctx, dev_res);
- rdma_protected_gslist_destroy(&srq->cqe_ctx_list);
-}
-
-#define CHK_ATTR(req, dev, member, fmt) ({ \
- trace_rdma_check_dev_attr(#member, dev.member, req->member); \
- if (req->member > dev.member) { \
- rdma_warn_report("%s = "fmt" is higher than host device capability
"fmt, \
- #member, req->member, dev.member); \
- req->member = dev.member; \
- } \
-})
-
-static int init_device_caps(RdmaBackendDev *backend_dev,
- struct ibv_device_attr *dev_attr)
-{
- struct ibv_device_attr bk_dev_attr;
- int rc;
-
- rc = ibv_query_device(backend_dev->context, &bk_dev_attr);
- if (rc) {
- rdma_error_report("ibv_query_device fail, rc=%d, errno=%d", rc, errno);
- return -EIO;
- }
-
- dev_attr->max_sge = MAX_SGE;
- dev_attr->max_srq_sge = MAX_SGE;
-
- CHK_ATTR(dev_attr, bk_dev_attr, max_mr_size, "%" PRId64);
- CHK_ATTR(dev_attr, bk_dev_attr, max_qp, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_sge, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_cq, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_mr, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_pd, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_qp_rd_atom, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_qp_init_rd_atom, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_ah, "%d");
- CHK_ATTR(dev_attr, bk_dev_attr, max_srq, "%d");
-
- return 0;
-}
-
-static inline void build_mad_hdr(struct ibv_grh *grh, union ibv_gid *sgid,
- union ibv_gid *my_gid, int paylen)
-{
- grh->paylen = htons(paylen);
- grh->sgid = *sgid;
- grh->dgid = *my_gid;
-}
-
-static void process_incoming_mad_req(RdmaBackendDev *backend_dev,
- RdmaCmMuxMsg *msg)
-{
- unsigned long cqe_ctx_id;
- BackendCtx *bctx;
- char *mad;
-
- trace_mad_message("recv", msg->umad.mad, msg->umad_len);
-
- cqe_ctx_id = rdma_protected_gqueue_pop_int64(&backend_dev->recv_mads_list);
- if (cqe_ctx_id == -ENOENT) {
- rdma_warn_report("No more free MADs buffers, waiting for a while");
- sleep(THR_POLL_TO);
- return;
- }
-
- bctx = rdma_rm_get_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id);
- if (unlikely(!bctx)) {
- rdma_error_report("No matching ctx for req %ld", cqe_ctx_id);
- backend_dev->rdma_dev_res->stats.mad_rx_err++;
- return;
- }
-
- mad = rdma_pci_dma_map(backend_dev->dev, bctx->sge.addr,
- bctx->sge.length);
- if (!mad || bctx->sge.length < msg->umad_len + MAD_HDR_SIZE) {
- backend_dev->rdma_dev_res->stats.mad_rx_err++;
- complete_work(IBV_WC_GENERAL_ERR, VENDOR_ERR_INV_MAD_BUFF,
- bctx->up_ctx);
- } else {
- struct ibv_wc wc = {};
- memset(mad, 0, bctx->sge.length);
- build_mad_hdr((struct ibv_grh *)mad,
- (union ibv_gid *)&msg->umad.hdr.addr.gid, &msg->hdr.sgid,
- msg->umad_len);
- memcpy(&mad[MAD_HDR_SIZE], msg->umad.mad, msg->umad_len);
- rdma_pci_dma_unmap(backend_dev->dev, mad, bctx->sge.length);
-
- wc.byte_len = msg->umad_len;
- wc.status = IBV_WC_SUCCESS;
- wc.wc_flags = IBV_WC_GRH;
- backend_dev->rdma_dev_res->stats.mad_rx++;
- comp_handler(bctx->up_ctx, &wc);
- }
-
- g_free(bctx);
- rdma_rm_dealloc_cqe_ctx(backend_dev->rdma_dev_res, cqe_ctx_id);
-}
-
-static inline int rdmacm_mux_can_receive(void *opaque)
-{
- RdmaBackendDev *backend_dev = (RdmaBackendDev *)opaque;
-
- return rdmacm_mux_can_process_async(backend_dev);
-}
-
-static void rdmacm_mux_read(void *opaque, const uint8_t *buf, int size)
-{
- RdmaBackendDev *backend_dev = (RdmaBackendDev *)opaque;
- RdmaCmMuxMsg *msg = (RdmaCmMuxMsg *)buf;
-
- trace_rdmacm_mux("read", msg->hdr.msg_type, msg->hdr.op_code);
-
- if (msg->hdr.msg_type != RDMACM_MUX_MSG_TYPE_REQ &&
- msg->hdr.op_code != RDMACM_MUX_OP_CODE_MAD) {
- rdma_error_report("Error: Not a MAD request, skipping");
- return;
- }
- process_incoming_mad_req(backend_dev, msg);
-}
-
-static int mad_init(RdmaBackendDev *backend_dev, CharBackend *mad_chr_be)
-{
- int ret;
-
- backend_dev->rdmacm_mux.chr_be = mad_chr_be;
-
- ret = qemu_chr_fe_backend_connected(backend_dev->rdmacm_mux.chr_be);
- if (!ret) {
- rdma_error_report("Missing chardev for MAD multiplexer");
- return -EIO;
- }
-
- rdma_protected_gqueue_init(&backend_dev->recv_mads_list);
-
- enable_rdmacm_mux_async(backend_dev);
-
- qemu_chr_fe_set_handlers(backend_dev->rdmacm_mux.chr_be,
- rdmacm_mux_can_receive, rdmacm_mux_read, NULL,
- NULL, backend_dev, NULL, true);
-
- return 0;
-}
-
-static void mad_stop(RdmaBackendDev *backend_dev)
-{
- clean_recv_mads(backend_dev);
-}
-
-static void mad_fini(RdmaBackendDev *backend_dev)
-{
- disable_rdmacm_mux_async(backend_dev);
- qemu_chr_fe_disconnect(backend_dev->rdmacm_mux.chr_be);
- rdma_protected_gqueue_destroy(&backend_dev->recv_mads_list);
-}
-
-int rdma_backend_get_gid_index(RdmaBackendDev *backend_dev,
- union ibv_gid *gid)
-{
- union ibv_gid sgid;
- int ret;
- int i = 0;
-
- do {
- ret = ibv_query_gid(backend_dev->context, backend_dev->port_num, i,
- &sgid);
- i++;
- } while (!ret && (memcmp(&sgid, gid, sizeof(*gid))));
-
- trace_rdma_backend_get_gid_index(be64_to_cpu(gid->global.subnet_prefix),
- be64_to_cpu(gid->global.interface_id),
- i - 1);
-
- return ret ? ret : i - 1;
-}
-
-int rdma_backend_add_gid(RdmaBackendDev *backend_dev, const char *ifname,
- union ibv_gid *gid)
-{
- RdmaCmMuxMsg msg = {};
- int ret;
-
- trace_rdma_backend_gid_change("add",
be64_to_cpu(gid->global.subnet_prefix),
- be64_to_cpu(gid->global.interface_id));
-
- msg.hdr.op_code = RDMACM_MUX_OP_CODE_REG;
- memcpy(msg.hdr.sgid.raw, gid->raw, sizeof(msg.hdr.sgid));
-
- ret = rdmacm_mux_send(backend_dev, &msg);
- if (ret) {
- rdma_error_report("Failed to register GID to rdma_umadmux (%d)", ret);
- return -EIO;
- }
-
- qapi_event_send_rdma_gid_status_changed(ifname, true,
- gid->global.subnet_prefix,
- gid->global.interface_id);
-
- return ret;
-}
-
-int rdma_backend_del_gid(RdmaBackendDev *backend_dev, const char *ifname,
- union ibv_gid *gid)
-{
- RdmaCmMuxMsg msg = {};
- int ret;
-
- trace_rdma_backend_gid_change("del",
be64_to_cpu(gid->global.subnet_prefix),
- be64_to_cpu(gid->global.interface_id));
-
- msg.hdr.op_code = RDMACM_MUX_OP_CODE_UNREG;
- memcpy(msg.hdr.sgid.raw, gid->raw, sizeof(msg.hdr.sgid));
-
- ret = rdmacm_mux_send(backend_dev, &msg);
- if (ret) {
- rdma_error_report("Failed to unregister GID from rdma_umadmux (%d)",
- ret);
- return -EIO;
- }
-
- qapi_event_send_rdma_gid_status_changed(ifname, false,
- gid->global.subnet_prefix,
- gid->global.interface_id);
-
- return 0;
-}
-
-int rdma_backend_init(RdmaBackendDev *backend_dev, PCIDevice *pdev,
- RdmaDeviceResources *rdma_dev_res,
- const char *backend_device_name, uint8_t port_num,
- struct ibv_device_attr *dev_attr, CharBackend
*mad_chr_be)
-{
- int i;
- int ret = 0;
- int num_ibv_devices;
- struct ibv_device **dev_list;
-
- memset(backend_dev, 0, sizeof(*backend_dev));
-
- backend_dev->dev = pdev;
- backend_dev->port_num = port_num;
- backend_dev->rdma_dev_res = rdma_dev_res;
-
- rdma_backend_register_comp_handler(dummy_comp_handler);
-
- dev_list = ibv_get_device_list(&num_ibv_devices);
- if (!dev_list) {
- rdma_error_report("Failed to get IB devices list");
- return -EIO;
- }
-
- if (num_ibv_devices == 0) {
- rdma_error_report("No IB devices were found");
- ret = -ENXIO;
- goto out_free_dev_list;
- }
-
- if (backend_device_name) {
- for (i = 0; dev_list[i]; ++i) {
- if (!strcmp(ibv_get_device_name(dev_list[i]),
- backend_device_name)) {
- break;
- }
- }
-
- backend_dev->ib_dev = dev_list[i];
- if (!backend_dev->ib_dev) {
- rdma_error_report("Failed to find IB device %s",
- backend_device_name);
- ret = -EIO;
- goto out_free_dev_list;
- }
- } else {
- backend_dev->ib_dev = *dev_list;
- }
-
- rdma_info_report("uverb device %s", backend_dev->ib_dev->dev_name);
-
- backend_dev->context = ibv_open_device(backend_dev->ib_dev);
- if (!backend_dev->context) {
- rdma_error_report("Failed to open IB device %s",
- ibv_get_device_name(backend_dev->ib_dev));
- ret = -EIO;
- goto out;
- }
-
- backend_dev->channel = ibv_create_comp_channel(backend_dev->context);
- if (!backend_dev->channel) {
- rdma_error_report("Failed to create IB communication channel");
- ret = -EIO;
- goto out_close_device;
- }
-
- ret = init_device_caps(backend_dev, dev_attr);
- if (ret) {
- rdma_error_report("Failed to initialize device capabilities");
- ret = -EIO;
- goto out_destroy_comm_channel;
- }
-
-
- ret = mad_init(backend_dev, mad_chr_be);
- if (ret) {
- rdma_error_report("Failed to initialize mad");
- ret = -EIO;
- goto out_destroy_comm_channel;
- }
-
- backend_dev->comp_thread.run = false;
- backend_dev->comp_thread.is_running = false;
-
- ah_cache_init();
-
- goto out_free_dev_list;
-
-out_destroy_comm_channel:
- ibv_destroy_comp_channel(backend_dev->channel);
-
-out_close_device:
- ibv_close_device(backend_dev->context);
-
-out_free_dev_list:
- ibv_free_device_list(dev_list);
-
-out:
- return ret;
-}
-
-
-void rdma_backend_start(RdmaBackendDev *backend_dev)
-{
- start_comp_thread(backend_dev);
-}
-
-void rdma_backend_stop(RdmaBackendDev *backend_dev)
-{
- mad_stop(backend_dev);
- stop_backend_thread(&backend_dev->comp_thread);
-}
-
-void rdma_backend_fini(RdmaBackendDev *backend_dev)
-{
- mad_fini(backend_dev);
- g_hash_table_destroy(ah_hash);
- ibv_destroy_comp_channel(backend_dev->channel);
- ibv_close_device(backend_dev->context);
-}
diff --git a/hw/rdma/rdma_rm.c b/hw/rdma/rdma_rm.c
deleted file mode 100644
index 038d564433..0000000000
--- a/hw/rdma/rdma_rm.c
+++ /dev/null
@@ -1,812 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Resource Manager Implementation
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "cpu.h"
-#include "monitor/monitor.h"
-
-#include "trace.h"
-#include "rdma_utils.h"
-#include "rdma_backend.h"
-#include "rdma_rm.h"
-
-void rdma_format_device_counters(RdmaDeviceResources *dev_res, GString *buf)
-{
- g_string_append_printf(buf, "\ttx : %" PRId64 "\n",
- dev_res->stats.tx);
- g_string_append_printf(buf, "\ttx_len : %" PRId64 "\n",
- dev_res->stats.tx_len);
- g_string_append_printf(buf, "\ttx_err : %" PRId64 "\n",
- dev_res->stats.tx_err);
- g_string_append_printf(buf, "\trx_bufs : %" PRId64 "\n",
- dev_res->stats.rx_bufs);
- g_string_append_printf(buf, "\trx_srq : %" PRId64 "\n",
- dev_res->stats.rx_srq);
- g_string_append_printf(buf, "\trx_bufs_len : %" PRId64 "\n",
- dev_res->stats.rx_bufs_len);
- g_string_append_printf(buf, "\trx_bufs_err : %" PRId64 "\n",
- dev_res->stats.rx_bufs_err);
- g_string_append_printf(buf, "\tcomps : %" PRId64 "\n",
- dev_res->stats.completions);
- g_string_append_printf(buf, "\tmissing_comps : %" PRId32 "\n",
- dev_res->stats.missing_cqe);
- g_string_append_printf(buf, "\tpoll_cq (bk) : %" PRId64 "\n",
- dev_res->stats.poll_cq_from_bk);
- g_string_append_printf(buf, "\tpoll_cq_ppoll_to : %" PRId64 "\n",
- dev_res->stats.poll_cq_ppoll_to);
- g_string_append_printf(buf, "\tpoll_cq (fe) : %" PRId64 "\n",
- dev_res->stats.poll_cq_from_guest);
- g_string_append_printf(buf, "\tpoll_cq_empty : %" PRId64 "\n",
- dev_res->stats.poll_cq_from_guest_empty);
- g_string_append_printf(buf, "\tmad_tx : %" PRId64 "\n",
- dev_res->stats.mad_tx);
- g_string_append_printf(buf, "\tmad_tx_err : %" PRId64 "\n",
- dev_res->stats.mad_tx_err);
- g_string_append_printf(buf, "\tmad_rx : %" PRId64 "\n",
- dev_res->stats.mad_rx);
- g_string_append_printf(buf, "\tmad_rx_err : %" PRId64 "\n",
- dev_res->stats.mad_rx_err);
- g_string_append_printf(buf, "\tmad_rx_bufs : %" PRId64 "\n",
- dev_res->stats.mad_rx_bufs);
- g_string_append_printf(buf, "\tmad_rx_bufs_err : %" PRId64 "\n",
- dev_res->stats.mad_rx_bufs_err);
- g_string_append_printf(buf, "\tPDs : %" PRId32 "\n",
- dev_res->pd_tbl.used);
- g_string_append_printf(buf, "\tMRs : %" PRId32 "\n",
- dev_res->mr_tbl.used);
- g_string_append_printf(buf, "\tUCs : %" PRId32 "\n",
- dev_res->uc_tbl.used);
- g_string_append_printf(buf, "\tQPs : %" PRId32 "\n",
- dev_res->qp_tbl.used);
- g_string_append_printf(buf, "\tCQs : %" PRId32 "\n",
- dev_res->cq_tbl.used);
- g_string_append_printf(buf, "\tCEQ_CTXs : %" PRId32 "\n",
- dev_res->cqe_ctx_tbl.used);
-}
-
-static inline void res_tbl_init(const char *name, RdmaRmResTbl *tbl,
- uint32_t tbl_sz, uint32_t res_sz)
-{
- tbl->tbl = g_malloc(tbl_sz * res_sz);
-
- strncpy(tbl->name, name, MAX_RM_TBL_NAME);
- tbl->name[MAX_RM_TBL_NAME - 1] = 0;
-
- tbl->bitmap = bitmap_new(tbl_sz);
- tbl->tbl_sz = tbl_sz;
- tbl->res_sz = res_sz;
- tbl->used = 0;
- qemu_mutex_init(&tbl->lock);
-}
-
-static inline void res_tbl_free(RdmaRmResTbl *tbl)
-{
- if (!tbl->bitmap) {
- return;
- }
- qemu_mutex_destroy(&tbl->lock);
- g_free(tbl->tbl);
- g_free(tbl->bitmap);
-}
-
-static inline void *rdma_res_tbl_get(RdmaRmResTbl *tbl, uint32_t handle)
-{
- trace_rdma_res_tbl_get(tbl->name, handle);
-
- if ((handle < tbl->tbl_sz) && (test_bit(handle, tbl->bitmap))) {
- return tbl->tbl + handle * tbl->res_sz;
- } else {
- rdma_error_report("Table %s, invalid handle %d", tbl->name, handle);
- return NULL;
- }
-}
-
-static inline void *rdma_res_tbl_alloc(RdmaRmResTbl *tbl, uint32_t *handle)
-{
- qemu_mutex_lock(&tbl->lock);
-
- *handle = find_first_zero_bit(tbl->bitmap, tbl->tbl_sz);
- if (*handle > tbl->tbl_sz) {
- rdma_error_report("Table %s, failed to allocate, bitmap is full",
- tbl->name);
- qemu_mutex_unlock(&tbl->lock);
- return NULL;
- }
-
- set_bit(*handle, tbl->bitmap);
-
- tbl->used++;
-
- qemu_mutex_unlock(&tbl->lock);
-
- memset(tbl->tbl + *handle * tbl->res_sz, 0, tbl->res_sz);
-
- trace_rdma_res_tbl_alloc(tbl->name, *handle);
-
- return tbl->tbl + *handle * tbl->res_sz;
-}
-
-static inline void rdma_res_tbl_dealloc(RdmaRmResTbl *tbl, uint32_t handle)
-{
- trace_rdma_res_tbl_dealloc(tbl->name, handle);
-
- QEMU_LOCK_GUARD(&tbl->lock);
-
- if (handle < tbl->tbl_sz) {
- clear_bit(handle, tbl->bitmap);
- tbl->used--;
- }
-
-}
-
-int rdma_rm_alloc_pd(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t *pd_handle, uint32_t ctx_handle)
-{
- RdmaRmPD *pd;
- int ret = -ENOMEM;
-
- pd = rdma_res_tbl_alloc(&dev_res->pd_tbl, pd_handle);
- if (!pd) {
- goto out;
- }
-
- ret = rdma_backend_create_pd(backend_dev, &pd->backend_pd);
- if (ret) {
- ret = -EIO;
- goto out_tbl_dealloc;
- }
-
- pd->ctx_handle = ctx_handle;
-
- return 0;
-
-out_tbl_dealloc:
- rdma_res_tbl_dealloc(&dev_res->pd_tbl, *pd_handle);
-
-out:
- return ret;
-}
-
-RdmaRmPD *rdma_rm_get_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle)
-{
- return rdma_res_tbl_get(&dev_res->pd_tbl, pd_handle);
-}
-
-void rdma_rm_dealloc_pd(RdmaDeviceResources *dev_res, uint32_t pd_handle)
-{
- RdmaRmPD *pd = rdma_rm_get_pd(dev_res, pd_handle);
-
- if (pd) {
- rdma_backend_destroy_pd(&pd->backend_pd);
- rdma_res_tbl_dealloc(&dev_res->pd_tbl, pd_handle);
- }
-}
-
-int rdma_rm_alloc_mr(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint64_t guest_start, uint64_t guest_length,
- void *host_virt, int access_flags, uint32_t *mr_handle,
- uint32_t *lkey, uint32_t *rkey)
-{
- RdmaRmMR *mr;
- int ret = 0;
- RdmaRmPD *pd;
-
- pd = rdma_rm_get_pd(dev_res, pd_handle);
- if (!pd) {
- return -EINVAL;
- }
-
- mr = rdma_res_tbl_alloc(&dev_res->mr_tbl, mr_handle);
- if (!mr) {
- return -ENOMEM;
- }
- trace_rdma_rm_alloc_mr(*mr_handle, host_virt, guest_start, guest_length,
- access_flags);
-
- if (host_virt) {
- mr->virt = host_virt;
- mr->start = guest_start;
- mr->length = guest_length;
- mr->virt += (mr->start & (TARGET_PAGE_SIZE - 1));
-
- ret = rdma_backend_create_mr(&mr->backend_mr, &pd->backend_pd,
mr->virt,
- mr->length, guest_start, access_flags);
- if (ret) {
- ret = -EIO;
- goto out_dealloc_mr;
- }
-#ifdef LEGACY_RDMA_REG_MR
- /* We keep mr_handle in lkey so send and recv get get mr ptr */
- *lkey = *mr_handle;
-#else
- *lkey = rdma_backend_mr_lkey(&mr->backend_mr);
-#endif
- }
-
- *rkey = -1;
-
- mr->pd_handle = pd_handle;
-
- return 0;
-
-out_dealloc_mr:
- rdma_res_tbl_dealloc(&dev_res->mr_tbl, *mr_handle);
-
- return ret;
-}
-
-RdmaRmMR *rdma_rm_get_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle)
-{
- return rdma_res_tbl_get(&dev_res->mr_tbl, mr_handle);
-}
-
-void rdma_rm_dealloc_mr(RdmaDeviceResources *dev_res, uint32_t mr_handle)
-{
- RdmaRmMR *mr = rdma_rm_get_mr(dev_res, mr_handle);
-
- if (mr) {
- rdma_backend_destroy_mr(&mr->backend_mr);
- trace_rdma_rm_dealloc_mr(mr_handle, mr->start);
- if (mr->start) {
- mr->virt -= (mr->start & (TARGET_PAGE_SIZE - 1));
- munmap(mr->virt, mr->length);
- }
- rdma_res_tbl_dealloc(&dev_res->mr_tbl, mr_handle);
- }
-}
-
-int rdma_rm_alloc_uc(RdmaDeviceResources *dev_res, uint32_t pfn,
- uint32_t *uc_handle)
-{
- RdmaRmUC *uc;
-
- /* TODO: Need to make sure pfn is between bar start address and
- * bsd+RDMA_BAR2_UAR_SIZE
- if (pfn > RDMA_BAR2_UAR_SIZE) {
- rdma_error_report("pfn out of range (%d > %d)", pfn,
- RDMA_BAR2_UAR_SIZE);
- return -ENOMEM;
- }
- */
-
- uc = rdma_res_tbl_alloc(&dev_res->uc_tbl, uc_handle);
- if (!uc) {
- return -ENOMEM;
- }
-
- return 0;
-}
-
-RdmaRmUC *rdma_rm_get_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle)
-{
- return rdma_res_tbl_get(&dev_res->uc_tbl, uc_handle);
-}
-
-void rdma_rm_dealloc_uc(RdmaDeviceResources *dev_res, uint32_t uc_handle)
-{
- RdmaRmUC *uc = rdma_rm_get_uc(dev_res, uc_handle);
-
- if (uc) {
- rdma_res_tbl_dealloc(&dev_res->uc_tbl, uc_handle);
- }
-}
-
-RdmaRmCQ *rdma_rm_get_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle)
-{
- return rdma_res_tbl_get(&dev_res->cq_tbl, cq_handle);
-}
-
-int rdma_rm_alloc_cq(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t cqe, uint32_t *cq_handle, void *opaque)
-{
- int rc;
- RdmaRmCQ *cq;
-
- cq = rdma_res_tbl_alloc(&dev_res->cq_tbl, cq_handle);
- if (!cq) {
- return -ENOMEM;
- }
-
- cq->opaque = opaque;
- cq->notify = CNT_CLEAR;
-
- rc = rdma_backend_create_cq(backend_dev, &cq->backend_cq, cqe);
- if (rc) {
- rc = -EIO;
- goto out_dealloc_cq;
- }
-
- return 0;
-
-out_dealloc_cq:
- rdma_rm_dealloc_cq(dev_res, *cq_handle);
-
- return rc;
-}
-
-void rdma_rm_req_notify_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle,
- bool notify)
-{
- RdmaRmCQ *cq;
-
- cq = rdma_rm_get_cq(dev_res, cq_handle);
- if (!cq) {
- return;
- }
-
- if (cq->notify != CNT_SET) {
- cq->notify = notify ? CNT_ARM : CNT_CLEAR;
- }
-}
-
-void rdma_rm_dealloc_cq(RdmaDeviceResources *dev_res, uint32_t cq_handle)
-{
- RdmaRmCQ *cq;
-
- cq = rdma_rm_get_cq(dev_res, cq_handle);
- if (!cq) {
- return;
- }
-
- rdma_backend_destroy_cq(&cq->backend_cq);
-
- rdma_res_tbl_dealloc(&dev_res->cq_tbl, cq_handle);
-}
-
-RdmaRmQP *rdma_rm_get_qp(RdmaDeviceResources *dev_res, uint32_t qpn)
-{
- GBytes *key = g_bytes_new(&qpn, sizeof(qpn));
-
- RdmaRmQP *qp = g_hash_table_lookup(dev_res->qp_hash, key);
-
- g_bytes_unref(key);
-
- if (!qp) {
- rdma_error_report("Invalid QP handle %d", qpn);
- }
-
- return qp;
-}
-
-int rdma_rm_alloc_qp(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint8_t qp_type, uint32_t max_send_wr,
- uint32_t max_send_sge, uint32_t send_cq_handle,
- uint32_t max_recv_wr, uint32_t max_recv_sge,
- uint32_t recv_cq_handle, void *opaque, uint32_t *qpn,
- uint8_t is_srq, uint32_t srq_handle)
-{
- int rc;
- RdmaRmQP *qp;
- RdmaRmCQ *scq, *rcq;
- RdmaRmPD *pd;
- RdmaRmSRQ *srq = NULL;
- uint32_t rm_qpn;
-
- pd = rdma_rm_get_pd(dev_res, pd_handle);
- if (!pd) {
- return -EINVAL;
- }
-
- scq = rdma_rm_get_cq(dev_res, send_cq_handle);
- rcq = rdma_rm_get_cq(dev_res, recv_cq_handle);
-
- if (!scq || !rcq) {
- rdma_error_report("Invalid send_cqn or recv_cqn (%d, %d)",
- send_cq_handle, recv_cq_handle);
- return -EINVAL;
- }
-
- if (is_srq) {
- srq = rdma_rm_get_srq(dev_res, srq_handle);
- if (!srq) {
- rdma_error_report("Invalid srqn %d", srq_handle);
- return -EINVAL;
- }
-
- srq->recv_cq_handle = recv_cq_handle;
- }
-
- if (qp_type == IBV_QPT_GSI) {
- scq->notify = CNT_SET;
- rcq->notify = CNT_SET;
- }
-
- qp = rdma_res_tbl_alloc(&dev_res->qp_tbl, &rm_qpn);
- if (!qp) {
- return -ENOMEM;
- }
-
- qp->qpn = rm_qpn;
- qp->qp_state = IBV_QPS_RESET;
- qp->qp_type = qp_type;
- qp->send_cq_handle = send_cq_handle;
- qp->recv_cq_handle = recv_cq_handle;
- qp->opaque = opaque;
- qp->is_srq = is_srq;
-
- rc = rdma_backend_create_qp(&qp->backend_qp, qp_type, &pd->backend_pd,
- &scq->backend_cq, &rcq->backend_cq,
- is_srq ? &srq->backend_srq : NULL,
- max_send_wr, max_recv_wr, max_send_sge,
- max_recv_sge);
-
- if (rc) {
- rc = -EIO;
- goto out_dealloc_qp;
- }
-
- *qpn = rdma_backend_qpn(&qp->backend_qp);
- trace_rdma_rm_alloc_qp(rm_qpn, *qpn, qp_type);
- g_hash_table_insert(dev_res->qp_hash, g_bytes_new(qpn, sizeof(*qpn)), qp);
-
- return 0;
-
-out_dealloc_qp:
- rdma_res_tbl_dealloc(&dev_res->qp_tbl, qp->qpn);
-
- return rc;
-}
-
-int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev
*backend_dev,
- uint32_t qp_handle, uint32_t attr_mask, uint8_t sgid_idx,
- union ibv_gid *dgid, uint32_t dqpn,
- enum ibv_qp_state qp_state, uint32_t qkey,
- uint32_t rq_psn, uint32_t sq_psn)
-{
- RdmaRmQP *qp;
- int ret;
-
- qp = rdma_rm_get_qp(dev_res, qp_handle);
- if (!qp) {
- return -EINVAL;
- }
-
- if (qp->qp_type == IBV_QPT_SMI) {
- rdma_error_report("Got QP0 request");
- return -EPERM;
- } else if (qp->qp_type == IBV_QPT_GSI) {
- return 0;
- }
-
- trace_rdma_rm_modify_qp(qp_handle, attr_mask, qp_state, sgid_idx);
-
- if (attr_mask & IBV_QP_STATE) {
- qp->qp_state = qp_state;
-
- if (qp->qp_state == IBV_QPS_INIT) {
- ret = rdma_backend_qp_state_init(backend_dev, &qp->backend_qp,
- qp->qp_type, qkey);
- if (ret) {
- return -EIO;
- }
- }
-
- if (qp->qp_state == IBV_QPS_RTR) {
- /* Get backend gid index */
- sgid_idx = rdma_rm_get_backend_gid_index(dev_res, backend_dev,
- sgid_idx);
- if (sgid_idx <= 0) { /* TODO check also less than bk.max_sgid */
- rdma_error_report("Failed to get bk sgid_idx for sgid_idx %d",
- sgid_idx);
- return -EIO;
- }
-
- ret = rdma_backend_qp_state_rtr(backend_dev, &qp->backend_qp,
- qp->qp_type, sgid_idx, dgid, dqpn,
- rq_psn, qkey,
- attr_mask & IBV_QP_QKEY);
- if (ret) {
- return -EIO;
- }
- }
-
- if (qp->qp_state == IBV_QPS_RTS) {
- ret = rdma_backend_qp_state_rts(&qp->backend_qp, qp->qp_type,
- sq_psn, qkey,
- attr_mask & IBV_QP_QKEY);
- if (ret) {
- return -EIO;
- }
- }
- }
-
- return 0;
-}
-
-int rdma_rm_query_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- uint32_t qp_handle, struct ibv_qp_attr *attr,
- int attr_mask, struct ibv_qp_init_attr *init_attr)
-{
- RdmaRmQP *qp;
-
- qp = rdma_rm_get_qp(dev_res, qp_handle);
- if (!qp) {
- return -EINVAL;
- }
-
- return rdma_backend_query_qp(&qp->backend_qp, attr, attr_mask, init_attr);
-}
-
-void rdma_rm_dealloc_qp(RdmaDeviceResources *dev_res, uint32_t qp_handle)
-{
- RdmaRmQP *qp;
- GBytes *key;
-
- key = g_bytes_new(&qp_handle, sizeof(qp_handle));
- qp = g_hash_table_lookup(dev_res->qp_hash, key);
- g_hash_table_remove(dev_res->qp_hash, key);
- g_bytes_unref(key);
-
- if (!qp) {
- return;
- }
-
- rdma_backend_destroy_qp(&qp->backend_qp, dev_res);
-
- rdma_res_tbl_dealloc(&dev_res->qp_tbl, qp->qpn);
-}
-
-RdmaRmSRQ *rdma_rm_get_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle)
-{
- return rdma_res_tbl_get(&dev_res->srq_tbl, srq_handle);
-}
-
-int rdma_rm_alloc_srq(RdmaDeviceResources *dev_res, uint32_t pd_handle,
- uint32_t max_wr, uint32_t max_sge, uint32_t srq_limit,
- uint32_t *srq_handle, void *opaque)
-{
- RdmaRmSRQ *srq;
- RdmaRmPD *pd;
- int rc;
-
- pd = rdma_rm_get_pd(dev_res, pd_handle);
- if (!pd) {
- return -EINVAL;
- }
-
- srq = rdma_res_tbl_alloc(&dev_res->srq_tbl, srq_handle);
- if (!srq) {
- return -ENOMEM;
- }
-
- rc = rdma_backend_create_srq(&srq->backend_srq, &pd->backend_pd,
- max_wr, max_sge, srq_limit);
- if (rc) {
- rc = -EIO;
- goto out_dealloc_srq;
- }
-
- srq->opaque = opaque;
-
- return 0;
-
-out_dealloc_srq:
- rdma_res_tbl_dealloc(&dev_res->srq_tbl, *srq_handle);
-
- return rc;
-}
-
-int rdma_rm_query_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
- struct ibv_srq_attr *srq_attr)
-{
- RdmaRmSRQ *srq;
-
- srq = rdma_rm_get_srq(dev_res, srq_handle);
- if (!srq) {
- return -EINVAL;
- }
-
- return rdma_backend_query_srq(&srq->backend_srq, srq_attr);
-}
-
-int rdma_rm_modify_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle,
- struct ibv_srq_attr *srq_attr, int srq_attr_mask)
-{
- RdmaRmSRQ *srq;
-
- srq = rdma_rm_get_srq(dev_res, srq_handle);
- if (!srq) {
- return -EINVAL;
- }
-
- if ((srq_attr_mask & IBV_SRQ_LIMIT) &&
- (srq_attr->srq_limit == 0)) {
- return -EINVAL;
- }
-
- if ((srq_attr_mask & IBV_SRQ_MAX_WR) &&
- (srq_attr->max_wr == 0)) {
- return -EINVAL;
- }
-
- return rdma_backend_modify_srq(&srq->backend_srq, srq_attr,
- srq_attr_mask);
-}
-
-void rdma_rm_dealloc_srq(RdmaDeviceResources *dev_res, uint32_t srq_handle)
-{
- RdmaRmSRQ *srq;
-
- srq = rdma_rm_get_srq(dev_res, srq_handle);
- if (!srq) {
- return;
- }
-
- rdma_backend_destroy_srq(&srq->backend_srq, dev_res);
- rdma_res_tbl_dealloc(&dev_res->srq_tbl, srq_handle);
-}
-
-void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id)
-{
- void **cqe_ctx;
-
- cqe_ctx = rdma_res_tbl_get(&dev_res->cqe_ctx_tbl, cqe_ctx_id);
- if (!cqe_ctx) {
- return NULL;
- }
-
- return *cqe_ctx;
-}
-
-int rdma_rm_alloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t *cqe_ctx_id,
- void *ctx)
-{
- void **cqe_ctx;
-
- cqe_ctx = rdma_res_tbl_alloc(&dev_res->cqe_ctx_tbl, cqe_ctx_id);
- if (!cqe_ctx) {
- return -ENOMEM;
- }
-
- *cqe_ctx = ctx;
-
- return 0;
-}
-
-void rdma_rm_dealloc_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id)
-{
- rdma_res_tbl_dealloc(&dev_res->cqe_ctx_tbl, cqe_ctx_id);
-}
-
-int rdma_rm_add_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname, union ibv_gid *gid, int gid_idx)
-{
- int rc;
-
- rc = rdma_backend_add_gid(backend_dev, ifname, gid);
- if (rc) {
- return -EINVAL;
- }
-
- memcpy(&dev_res->port.gid_tbl[gid_idx].gid, gid, sizeof(*gid));
-
- return 0;
-}
-
-int rdma_rm_del_gid(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname, int gid_idx)
-{
- int rc;
-
- if (!dev_res->port.gid_tbl[gid_idx].gid.global.interface_id) {
- return 0;
- }
-
- rc = rdma_backend_del_gid(backend_dev, ifname,
- &dev_res->port.gid_tbl[gid_idx].gid);
- if (rc) {
- return -EINVAL;
- }
-
- memset(dev_res->port.gid_tbl[gid_idx].gid.raw, 0,
- sizeof(dev_res->port.gid_tbl[gid_idx].gid));
- dev_res->port.gid_tbl[gid_idx].backend_gid_index = -1;
-
- return 0;
-}
-
-int rdma_rm_get_backend_gid_index(RdmaDeviceResources *dev_res,
- RdmaBackendDev *backend_dev, int sgid_idx)
-{
- if (unlikely(sgid_idx < 0 || sgid_idx >= MAX_PORT_GIDS)) {
- rdma_error_report("Got invalid sgid_idx %d", sgid_idx);
- return -EINVAL;
- }
-
- if (unlikely(dev_res->port.gid_tbl[sgid_idx].backend_gid_index == -1)) {
- dev_res->port.gid_tbl[sgid_idx].backend_gid_index =
- rdma_backend_get_gid_index(backend_dev,
- &dev_res->port.gid_tbl[sgid_idx].gid);
- }
-
- return dev_res->port.gid_tbl[sgid_idx].backend_gid_index;
-}
-
-static void destroy_qp_hash_key(gpointer data)
-{
- g_bytes_unref(data);
-}
-
-static void init_ports(RdmaDeviceResources *dev_res)
-{
- int i;
-
- memset(&dev_res->port, 0, sizeof(dev_res->port));
-
- dev_res->port.state = IBV_PORT_DOWN;
- for (i = 0; i < MAX_PORT_GIDS; i++) {
- dev_res->port.gid_tbl[i].backend_gid_index = -1;
- }
-}
-
-static void fini_ports(RdmaDeviceResources *dev_res,
- RdmaBackendDev *backend_dev, const char *ifname)
-{
- int i;
-
- dev_res->port.state = IBV_PORT_DOWN;
- for (i = 0; i < MAX_PORT_GIDS; i++) {
- rdma_rm_del_gid(dev_res, backend_dev, ifname, i);
- }
-}
-
-int rdma_rm_init(RdmaDeviceResources *dev_res, struct ibv_device_attr
*dev_attr)
-{
- dev_res->qp_hash = g_hash_table_new_full(g_bytes_hash, g_bytes_equal,
- destroy_qp_hash_key, NULL);
- if (!dev_res->qp_hash) {
- return -ENOMEM;
- }
-
- res_tbl_init("PD", &dev_res->pd_tbl, dev_attr->max_pd, sizeof(RdmaRmPD));
- res_tbl_init("CQ", &dev_res->cq_tbl, dev_attr->max_cq, sizeof(RdmaRmCQ));
- res_tbl_init("MR", &dev_res->mr_tbl, dev_attr->max_mr, sizeof(RdmaRmMR));
- res_tbl_init("QP", &dev_res->qp_tbl, dev_attr->max_qp, sizeof(RdmaRmQP));
- res_tbl_init("CQE_CTX", &dev_res->cqe_ctx_tbl, dev_attr->max_qp *
- dev_attr->max_qp_wr, sizeof(void *));
- res_tbl_init("UC", &dev_res->uc_tbl, MAX_UCS, sizeof(RdmaRmUC));
- res_tbl_init("SRQ", &dev_res->srq_tbl, dev_attr->max_srq,
- sizeof(RdmaRmSRQ));
-
- init_ports(dev_res);
-
- qemu_mutex_init(&dev_res->lock);
-
- memset(&dev_res->stats, 0, sizeof(dev_res->stats));
- qatomic_set(&dev_res->stats.missing_cqe, 0);
-
- return 0;
-}
-
-void rdma_rm_fini(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
- const char *ifname)
-{
- qemu_mutex_destroy(&dev_res->lock);
-
- fini_ports(dev_res, backend_dev, ifname);
-
- res_tbl_free(&dev_res->srq_tbl);
- res_tbl_free(&dev_res->uc_tbl);
- res_tbl_free(&dev_res->cqe_ctx_tbl);
- res_tbl_free(&dev_res->qp_tbl);
- res_tbl_free(&dev_res->mr_tbl);
- res_tbl_free(&dev_res->cq_tbl);
- res_tbl_free(&dev_res->pd_tbl);
-
- if (dev_res->qp_hash) {
- g_hash_table_destroy(dev_res->qp_hash);
- }
-}
diff --git a/hw/rdma/rdma_utils.c b/hw/rdma/rdma_utils.c
deleted file mode 100644
index c948baf052..0000000000
--- a/hw/rdma/rdma_utils.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Generic RDMA backend
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "hw/pci/pci_device.h"
-#include "trace.h"
-#include "rdma_utils.h"
-
-void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t len)
-{
- void *p;
- dma_addr_t pci_len = len;
-
- if (!addr) {
- rdma_error_report("addr is NULL");
- return NULL;
- }
-
- p = pci_dma_map(dev, addr, &pci_len, DMA_DIRECTION_TO_DEVICE);
- if (!p) {
- rdma_error_report("pci_dma_map fail, addr=0x%"PRIx64", len=%"PRId64,
- addr, pci_len);
- return NULL;
- }
-
- if (pci_len != len) {
- rdma_pci_dma_unmap(dev, p, pci_len);
- return NULL;
- }
-
- trace_rdma_pci_dma_map(addr, p, pci_len);
-
- return p;
-}
-
-void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len)
-{
- trace_rdma_pci_dma_unmap(buffer);
- if (buffer) {
- pci_dma_unmap(dev, buffer, len, DMA_DIRECTION_TO_DEVICE, 0);
- }
-}
-
-void rdma_protected_gqueue_init(RdmaProtectedGQueue *list)
-{
- qemu_mutex_init(&list->lock);
- list->list = g_queue_new();
-}
-
-void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list)
-{
- if (list->list) {
- g_queue_free_full(list->list, g_free);
- qemu_mutex_destroy(&list->lock);
- list->list = NULL;
- }
-}
-
-void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list,
- int64_t value)
-{
- qemu_mutex_lock(&list->lock);
- g_queue_push_tail(list->list, g_memdup(&value, sizeof(value)));
- qemu_mutex_unlock(&list->lock);
-}
-
-int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list)
-{
- int64_t *valp;
- int64_t val;
-
- qemu_mutex_lock(&list->lock);
-
- valp = g_queue_pop_head(list->list);
- qemu_mutex_unlock(&list->lock);
-
- if (!valp) {
- return -ENOENT;
- }
-
- val = *valp;
- g_free(valp);
- return val;
-}
-
-void rdma_protected_gslist_init(RdmaProtectedGSList *list)
-{
- qemu_mutex_init(&list->lock);
-}
-
-void rdma_protected_gslist_destroy(RdmaProtectedGSList *list)
-{
- if (list->list) {
- g_slist_free(list->list);
- qemu_mutex_destroy(&list->lock);
- list->list = NULL;
- }
-}
-
-void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list,
- int32_t value)
-{
- qemu_mutex_lock(&list->lock);
- list->list = g_slist_prepend(list->list, GINT_TO_POINTER(value));
- qemu_mutex_unlock(&list->lock);
-}
-
-void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list,
- int32_t value)
-{
- qemu_mutex_lock(&list->lock);
- list->list = g_slist_remove(list->list, GINT_TO_POINTER(value));
- qemu_mutex_unlock(&list->lock);
-}
diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c
deleted file mode 100644
index d385d18d9c..0000000000
--- a/hw/rdma/vmw/pvrdma_cmd.c
+++ /dev/null
@@ -1,815 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Command channel
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "hw/pci/pci.h"
-#include "hw/pci/pci_ids.h"
-
-#include "../rdma_backend.h"
-#include "../rdma_rm.h"
-#include "../rdma_utils.h"
-
-#include "trace.h"
-#include "pvrdma.h"
-#include "standard-headers/rdma/vmw_pvrdma-abi.h"
-
-static void *pvrdma_map_to_pdir(PCIDevice *pdev, uint64_t pdir_dma,
- uint32_t nchunks, size_t length)
-{
- uint64_t *dir, *tbl;
- int tbl_idx, dir_idx, addr_idx;
- void *host_virt = NULL, *curr_page;
-
- if (!nchunks) {
- rdma_error_report("Got nchunks=0");
- return NULL;
- }
-
- length = ROUND_UP(length, TARGET_PAGE_SIZE);
- if (nchunks * TARGET_PAGE_SIZE != length) {
- rdma_error_report("Invalid nchunks/length (%u, %lu)", nchunks,
- (unsigned long)length);
- return NULL;
- }
-
- dir = rdma_pci_dma_map(pdev, pdir_dma, TARGET_PAGE_SIZE);
- if (!dir) {
- rdma_error_report("Failed to map to page directory");
- return NULL;
- }
-
- tbl = rdma_pci_dma_map(pdev, dir[0], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to page table 0");
- goto out_unmap_dir;
- }
-
- curr_page = rdma_pci_dma_map(pdev, (dma_addr_t)tbl[0], TARGET_PAGE_SIZE);
- if (!curr_page) {
- rdma_error_report("Failed to map the page 0");
- goto out_unmap_tbl;
- }
-
- host_virt = mremap(curr_page, 0, length, MREMAP_MAYMOVE);
- if (host_virt == MAP_FAILED) {
- host_virt = NULL;
- rdma_error_report("Failed to remap memory for host_virt");
- goto out_unmap_tbl;
- }
- trace_pvrdma_map_to_pdir_host_virt(curr_page, host_virt);
-
- rdma_pci_dma_unmap(pdev, curr_page, TARGET_PAGE_SIZE);
-
- dir_idx = 0;
- tbl_idx = 1;
- addr_idx = 1;
- while (addr_idx < nchunks) {
- if (tbl_idx == TARGET_PAGE_SIZE / sizeof(uint64_t)) {
- tbl_idx = 0;
- dir_idx++;
- rdma_pci_dma_unmap(pdev, tbl, TARGET_PAGE_SIZE);
- tbl = rdma_pci_dma_map(pdev, dir[dir_idx], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to page table %d", dir_idx);
- goto out_unmap_host_virt;
- }
- }
-
- curr_page = rdma_pci_dma_map(pdev, (dma_addr_t)tbl[tbl_idx],
- TARGET_PAGE_SIZE);
- if (!curr_page) {
- rdma_error_report("Failed to map to page %d, dir %d", tbl_idx,
- dir_idx);
- goto out_unmap_host_virt;
- }
-
- mremap(curr_page, 0, TARGET_PAGE_SIZE, MREMAP_MAYMOVE | MREMAP_FIXED,
- host_virt + TARGET_PAGE_SIZE * addr_idx);
-
- trace_pvrdma_map_to_pdir_next_page(addr_idx, curr_page, host_virt +
- TARGET_PAGE_SIZE * addr_idx);
-
- rdma_pci_dma_unmap(pdev, curr_page, TARGET_PAGE_SIZE);
-
- addr_idx++;
-
- tbl_idx++;
- }
-
- goto out_unmap_tbl;
-
-out_unmap_host_virt:
- munmap(host_virt, length);
- host_virt = NULL;
-
-out_unmap_tbl:
- rdma_pci_dma_unmap(pdev, tbl, TARGET_PAGE_SIZE);
-
-out_unmap_dir:
- rdma_pci_dma_unmap(pdev, dir, TARGET_PAGE_SIZE);
-
- return host_virt;
-}
-
-static int query_port(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_query_port *cmd = &req->query_port;
- struct pvrdma_cmd_query_port_resp *resp = &rsp->query_port_resp;
- struct ibv_port_attr attrs = {};
-
- if (cmd->port_num > MAX_PORTS) {
- return -EINVAL;
- }
-
- if (rdma_backend_query_port(&dev->backend_dev, &attrs)) {
- return -ENOMEM;
- }
-
- memset(resp, 0, sizeof(*resp));
-
- /*
- * The state, max_mtu and active_mtu fields are enums; the values
- * for pvrdma_port_state and pvrdma_mtu match those for
- * ibv_port_state and ibv_mtu, so we can cast them safely.
- */
- resp->attrs.state = dev->func0->device_active ?
- (enum pvrdma_port_state)attrs.state : PVRDMA_PORT_DOWN;
- resp->attrs.max_mtu = (enum pvrdma_mtu)attrs.max_mtu;
- resp->attrs.active_mtu = (enum pvrdma_mtu)attrs.active_mtu;
- resp->attrs.phys_state = attrs.phys_state;
- resp->attrs.gid_tbl_len = MIN(MAX_PORT_GIDS, attrs.gid_tbl_len);
- resp->attrs.max_msg_sz = 1024;
- resp->attrs.pkey_tbl_len = MIN(MAX_PORT_PKEYS, attrs.pkey_tbl_len);
- resp->attrs.active_width = 1;
- resp->attrs.active_speed = 1;
-
- return 0;
-}
-
-static int query_pkey(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_query_pkey *cmd = &req->query_pkey;
- struct pvrdma_cmd_query_pkey_resp *resp = &rsp->query_pkey_resp;
-
- if (cmd->port_num > MAX_PORTS) {
- return -EINVAL;
- }
-
- if (cmd->index > MAX_PKEYS) {
- return -EINVAL;
- }
-
- memset(resp, 0, sizeof(*resp));
-
- resp->pkey = PVRDMA_PKEY;
-
- return 0;
-}
-
-static int create_pd(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_pd *cmd = &req->create_pd;
- struct pvrdma_cmd_create_pd_resp *resp = &rsp->create_pd_resp;
-
- memset(resp, 0, sizeof(*resp));
- return rdma_rm_alloc_pd(&dev->rdma_dev_res, &dev->backend_dev,
- &resp->pd_handle, cmd->ctx_handle);
-}
-
-static int destroy_pd(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_pd *cmd = &req->destroy_pd;
-
- rdma_rm_dealloc_pd(&dev->rdma_dev_res, cmd->pd_handle);
-
- return 0;
-}
-
-static int create_mr(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_mr *cmd = &req->create_mr;
- struct pvrdma_cmd_create_mr_resp *resp = &rsp->create_mr_resp;
- PCIDevice *pci_dev = PCI_DEVICE(dev);
- void *host_virt = NULL;
- int rc = 0;
-
- memset(resp, 0, sizeof(*resp));
-
- if (!(cmd->flags & PVRDMA_MR_FLAG_DMA)) {
- host_virt = pvrdma_map_to_pdir(pci_dev, cmd->pdir_dma, cmd->nchunks,
- cmd->length);
- if (!host_virt) {
- rdma_error_report("Failed to map to pdir");
- return -EINVAL;
- }
- }
-
- rc = rdma_rm_alloc_mr(&dev->rdma_dev_res, cmd->pd_handle, cmd->start,
- cmd->length, host_virt, cmd->access_flags,
- &resp->mr_handle, &resp->lkey, &resp->rkey);
- if (rc && host_virt) {
- munmap(host_virt, cmd->length);
- }
-
- return rc;
-}
-
-static int destroy_mr(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_mr *cmd = &req->destroy_mr;
-
- rdma_rm_dealloc_mr(&dev->rdma_dev_res, cmd->mr_handle);
-
- return 0;
-}
-
-static int create_cq_ring(PCIDevice *pci_dev , PvrdmaRing **ring,
- uint64_t pdir_dma, uint32_t nchunks, uint32_t cqe)
-{
- uint64_t *dir = NULL, *tbl = NULL;
- PvrdmaRing *r;
- int rc = -EINVAL;
- char ring_name[MAX_RING_NAME_SZ];
-
- if (!nchunks || nchunks > PVRDMA_MAX_FAST_REG_PAGES) {
- rdma_error_report("Got invalid nchunks: %d", nchunks);
- return rc;
- }
-
- dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE);
- if (!dir) {
- rdma_error_report("Failed to map to CQ page directory");
- goto out;
- }
-
- tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to CQ page table");
- goto out;
- }
-
- r = g_malloc(sizeof(*r));
- *ring = r;
-
- r->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE);
-
- if (!r->ring_state) {
- rdma_error_report("Failed to map to CQ ring state");
- goto out_free_ring;
- }
-
- sprintf(ring_name, "cq_ring_%" PRIx64, pdir_dma);
- rc = pvrdma_ring_init(r, ring_name, pci_dev, &r->ring_state[1],
- cqe, sizeof(struct pvrdma_cqe),
- /* first page is ring state */
- (dma_addr_t *)&tbl[1], nchunks - 1);
- if (rc) {
- goto out_unmap_ring_state;
- }
-
- goto out;
-
-out_unmap_ring_state:
- /* ring_state was in slot 1, not 0 so need to jump back */
- rdma_pci_dma_unmap(pci_dev, --r->ring_state, TARGET_PAGE_SIZE);
-
-out_free_ring:
- g_free(r);
-
-out:
- rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE);
- rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE);
-
- return rc;
-}
-
-static void destroy_cq_ring(PvrdmaRing *ring)
-{
- pvrdma_ring_free(ring);
- /* ring_state was in slot 1, not 0 so need to jump back */
- rdma_pci_dma_unmap(ring->dev, --ring->ring_state, TARGET_PAGE_SIZE);
- g_free(ring);
-}
-
-static int create_cq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_cq *cmd = &req->create_cq;
- struct pvrdma_cmd_create_cq_resp *resp = &rsp->create_cq_resp;
- PvrdmaRing *ring = NULL;
- int rc;
-
- memset(resp, 0, sizeof(*resp));
-
- resp->cqe = cmd->cqe;
-
- rc = create_cq_ring(PCI_DEVICE(dev), &ring, cmd->pdir_dma, cmd->nchunks,
- cmd->cqe);
- if (rc) {
- return rc;
- }
-
- rc = rdma_rm_alloc_cq(&dev->rdma_dev_res, &dev->backend_dev, cmd->cqe,
- &resp->cq_handle, ring);
- if (rc) {
- destroy_cq_ring(ring);
- }
-
- resp->cqe = cmd->cqe;
-
- return rc;
-}
-
-static int destroy_cq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_cq *cmd = &req->destroy_cq;
- RdmaRmCQ *cq;
- PvrdmaRing *ring;
-
- cq = rdma_rm_get_cq(&dev->rdma_dev_res, cmd->cq_handle);
- if (!cq) {
- rdma_error_report("Got invalid CQ handle");
- return -EINVAL;
- }
-
- ring = (PvrdmaRing *)cq->opaque;
- destroy_cq_ring(ring);
-
- rdma_rm_dealloc_cq(&dev->rdma_dev_res, cmd->cq_handle);
-
- return 0;
-}
-
-static int create_qp_rings(PCIDevice *pci_dev, uint64_t pdir_dma,
- PvrdmaRing **rings, uint32_t scqe, uint32_t
smax_sge,
- uint32_t spages, uint32_t rcqe, uint32_t rmax_sge,
- uint32_t rpages, uint8_t is_srq)
-{
- uint64_t *dir = NULL, *tbl = NULL;
- PvrdmaRing *sr, *rr;
- int rc = -EINVAL;
- char ring_name[MAX_RING_NAME_SZ];
- uint32_t wqe_sz;
-
- if (!spages || spages > PVRDMA_MAX_FAST_REG_PAGES) {
- rdma_error_report("Got invalid send page count for QP ring: %d",
- spages);
- return rc;
- }
-
- if (!is_srq && (!rpages || rpages > PVRDMA_MAX_FAST_REG_PAGES)) {
- rdma_error_report("Got invalid recv page count for QP ring: %d",
- rpages);
- return rc;
- }
-
- dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE);
- if (!dir) {
- rdma_error_report("Failed to map to QP page directory");
- goto out;
- }
-
- tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to QP page table");
- goto out;
- }
-
- if (!is_srq) {
- sr = g_malloc(2 * sizeof(*rr));
- rr = &sr[1];
- } else {
- sr = g_malloc(sizeof(*sr));
- }
-
- *rings = sr;
-
- /* Create send ring */
- sr->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE);
- if (!sr->ring_state) {
- rdma_error_report("Failed to map to QP ring state");
- goto out_free_sr_mem;
- }
-
- wqe_sz = pow2ceil(sizeof(struct pvrdma_sq_wqe_hdr) +
- sizeof(struct pvrdma_sge) * smax_sge - 1);
-
- sprintf(ring_name, "qp_sring_%" PRIx64, pdir_dma);
- rc = pvrdma_ring_init(sr, ring_name, pci_dev, sr->ring_state,
- scqe, wqe_sz, (dma_addr_t *)&tbl[1], spages);
- if (rc) {
- goto out_unmap_ring_state;
- }
-
- if (!is_srq) {
- /* Create recv ring */
- rr->ring_state = &sr->ring_state[1];
- wqe_sz = pow2ceil(sizeof(struct pvrdma_rq_wqe_hdr) +
- sizeof(struct pvrdma_sge) * rmax_sge - 1);
- sprintf(ring_name, "qp_rring_%" PRIx64, pdir_dma);
- rc = pvrdma_ring_init(rr, ring_name, pci_dev, rr->ring_state,
- rcqe, wqe_sz, (dma_addr_t *)&tbl[1 + spages],
- rpages);
- if (rc) {
- goto out_free_sr;
- }
- }
-
- goto out;
-
-out_free_sr:
- pvrdma_ring_free(sr);
-
-out_unmap_ring_state:
- rdma_pci_dma_unmap(pci_dev, sr->ring_state, TARGET_PAGE_SIZE);
-
-out_free_sr_mem:
- g_free(sr);
-
-out:
- rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE);
- rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE);
-
- return rc;
-}
-
-static void destroy_qp_rings(PvrdmaRing *ring, uint8_t is_srq)
-{
- pvrdma_ring_free(&ring[0]);
- if (!is_srq) {
- pvrdma_ring_free(&ring[1]);
- }
-
- rdma_pci_dma_unmap(ring->dev, ring->ring_state, TARGET_PAGE_SIZE);
- g_free(ring);
-}
-
-static int create_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_qp *cmd = &req->create_qp;
- struct pvrdma_cmd_create_qp_resp *resp = &rsp->create_qp_resp;
- PvrdmaRing *rings = NULL;
- int rc;
-
- memset(resp, 0, sizeof(*resp));
-
- rc = create_qp_rings(PCI_DEVICE(dev), cmd->pdir_dma, &rings,
- cmd->max_send_wr, cmd->max_send_sge, cmd->send_chunks,
- cmd->max_recv_wr, cmd->max_recv_sge,
- cmd->total_chunks - cmd->send_chunks - 1,
cmd->is_srq);
- if (rc) {
- return rc;
- }
-
- rc = rdma_rm_alloc_qp(&dev->rdma_dev_res, cmd->pd_handle, cmd->qp_type,
- cmd->max_send_wr, cmd->max_send_sge,
- cmd->send_cq_handle, cmd->max_recv_wr,
- cmd->max_recv_sge, cmd->recv_cq_handle, rings,
- &resp->qpn, cmd->is_srq, cmd->srq_handle);
- if (rc) {
- destroy_qp_rings(rings, cmd->is_srq);
- return rc;
- }
-
- resp->max_send_wr = cmd->max_send_wr;
- resp->max_recv_wr = cmd->max_recv_wr;
- resp->max_send_sge = cmd->max_send_sge;
- resp->max_recv_sge = cmd->max_recv_sge;
- resp->max_inline_data = cmd->max_inline_data;
-
- return 0;
-}
-
-static int modify_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_modify_qp *cmd = &req->modify_qp;
-
- /* No need to verify sgid_index since it is u8 */
-
- return rdma_rm_modify_qp(&dev->rdma_dev_res, &dev->backend_dev,
- cmd->qp_handle, cmd->attr_mask,
- cmd->attrs.ah_attr.grh.sgid_index,
- (union ibv_gid *)&cmd->attrs.ah_attr.grh.dgid,
- cmd->attrs.dest_qp_num,
- (enum ibv_qp_state)cmd->attrs.qp_state,
- cmd->attrs.qkey, cmd->attrs.rq_psn,
- cmd->attrs.sq_psn);
-}
-
-static int query_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_query_qp *cmd = &req->query_qp;
- struct pvrdma_cmd_query_qp_resp *resp = &rsp->query_qp_resp;
- struct ibv_qp_init_attr init_attr;
-
- memset(resp, 0, sizeof(*resp));
-
- return rdma_rm_query_qp(&dev->rdma_dev_res, &dev->backend_dev,
- cmd->qp_handle,
- (struct ibv_qp_attr *)&resp->attrs,
- cmd->attr_mask,
- &init_attr);
-}
-
-static int destroy_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_qp *cmd = &req->destroy_qp;
- RdmaRmQP *qp;
- PvrdmaRing *ring;
-
- qp = rdma_rm_get_qp(&dev->rdma_dev_res, cmd->qp_handle);
- if (!qp) {
- return -EINVAL;
- }
-
- ring = (PvrdmaRing *)qp->opaque;
- destroy_qp_rings(ring, qp->is_srq);
- rdma_rm_dealloc_qp(&dev->rdma_dev_res, cmd->qp_handle);
-
- return 0;
-}
-
-static int create_bind(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_bind *cmd = &req->create_bind;
- union ibv_gid *gid = (union ibv_gid *)&cmd->new_gid;
-
- if (cmd->index >= MAX_PORT_GIDS) {
- return -EINVAL;
- }
-
- return rdma_rm_add_gid(&dev->rdma_dev_res, &dev->backend_dev,
- dev->backend_eth_device_name, gid, cmd->index);
-}
-
-static int destroy_bind(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_bind *cmd = &req->destroy_bind;
-
- if (cmd->index >= MAX_PORT_GIDS) {
- return -EINVAL;
- }
-
- return rdma_rm_del_gid(&dev->rdma_dev_res, &dev->backend_dev,
- dev->backend_eth_device_name, cmd->index);
-}
-
-static int create_uc(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_uc *cmd = &req->create_uc;
- struct pvrdma_cmd_create_uc_resp *resp = &rsp->create_uc_resp;
-
- memset(resp, 0, sizeof(*resp));
- return rdma_rm_alloc_uc(&dev->rdma_dev_res, cmd->pfn, &resp->ctx_handle);
-}
-
-static int destroy_uc(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_uc *cmd = &req->destroy_uc;
-
- rdma_rm_dealloc_uc(&dev->rdma_dev_res, cmd->ctx_handle);
-
- return 0;
-}
-
-static int create_srq_ring(PCIDevice *pci_dev, PvrdmaRing **ring,
- uint64_t pdir_dma, uint32_t max_wr,
- uint32_t max_sge, uint32_t nchunks)
-{
- uint64_t *dir = NULL, *tbl = NULL;
- PvrdmaRing *r;
- int rc = -EINVAL;
- char ring_name[MAX_RING_NAME_SZ];
- uint32_t wqe_sz;
-
- if (!nchunks || nchunks > PVRDMA_MAX_FAST_REG_PAGES) {
- rdma_error_report("Got invalid page count for SRQ ring: %d",
- nchunks);
- return rc;
- }
-
- dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE);
- if (!dir) {
- rdma_error_report("Failed to map to SRQ page directory");
- goto out;
- }
-
- tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to SRQ page table");
- goto out;
- }
-
- r = g_malloc(sizeof(*r));
- *ring = r;
-
- r->ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE);
- if (!r->ring_state) {
- rdma_error_report("Failed to map tp SRQ ring state");
- goto out_free_ring_mem;
- }
-
- wqe_sz = pow2ceil(sizeof(struct pvrdma_rq_wqe_hdr) +
- sizeof(struct pvrdma_sge) * max_sge - 1);
- sprintf(ring_name, "srq_ring_%" PRIx64, pdir_dma);
- rc = pvrdma_ring_init(r, ring_name, pci_dev, &r->ring_state[1], max_wr,
- wqe_sz, (dma_addr_t *)&tbl[1], nchunks - 1);
- if (rc) {
- goto out_unmap_ring_state;
- }
-
- goto out;
-
-out_unmap_ring_state:
- rdma_pci_dma_unmap(pci_dev, r->ring_state, TARGET_PAGE_SIZE);
-
-out_free_ring_mem:
- g_free(r);
-
-out:
- rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE);
- rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE);
-
- return rc;
-}
-
-static void destroy_srq_ring(PvrdmaRing *ring)
-{
- pvrdma_ring_free(ring);
- rdma_pci_dma_unmap(ring->dev, ring->ring_state, TARGET_PAGE_SIZE);
- g_free(ring);
-}
-
-static int create_srq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_create_srq *cmd = &req->create_srq;
- struct pvrdma_cmd_create_srq_resp *resp = &rsp->create_srq_resp;
- PvrdmaRing *ring = NULL;
- int rc;
-
- memset(resp, 0, sizeof(*resp));
-
- rc = create_srq_ring(PCI_DEVICE(dev), &ring, cmd->pdir_dma,
- cmd->attrs.max_wr, cmd->attrs.max_sge,
- cmd->nchunks);
- if (rc) {
- return rc;
- }
-
- rc = rdma_rm_alloc_srq(&dev->rdma_dev_res, cmd->pd_handle,
- cmd->attrs.max_wr, cmd->attrs.max_sge,
- cmd->attrs.srq_limit, &resp->srqn, ring);
- if (rc) {
- destroy_srq_ring(ring);
- return rc;
- }
-
- return 0;
-}
-
-static int query_srq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_query_srq *cmd = &req->query_srq;
- struct pvrdma_cmd_query_srq_resp *resp = &rsp->query_srq_resp;
-
- memset(resp, 0, sizeof(*resp));
-
- return rdma_rm_query_srq(&dev->rdma_dev_res, cmd->srq_handle,
- (struct ibv_srq_attr *)&resp->attrs);
-}
-
-static int modify_srq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_modify_srq *cmd = &req->modify_srq;
-
- /* Only support SRQ limit */
- if (!(cmd->attr_mask & IBV_SRQ_LIMIT) ||
- (cmd->attr_mask & IBV_SRQ_MAX_WR))
- return -EINVAL;
-
- return rdma_rm_modify_srq(&dev->rdma_dev_res, cmd->srq_handle,
- (struct ibv_srq_attr *)&cmd->attrs,
- cmd->attr_mask);
-}
-
-static int destroy_srq(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp)
-{
- struct pvrdma_cmd_destroy_srq *cmd = &req->destroy_srq;
- RdmaRmSRQ *srq;
- PvrdmaRing *ring;
-
- srq = rdma_rm_get_srq(&dev->rdma_dev_res, cmd->srq_handle);
- if (!srq) {
- return -EINVAL;
- }
-
- ring = (PvrdmaRing *)srq->opaque;
- destroy_srq_ring(ring);
- rdma_rm_dealloc_srq(&dev->rdma_dev_res, cmd->srq_handle);
-
- return 0;
-}
-
-struct cmd_handler {
- uint32_t cmd;
- uint32_t ack;
- int (*exec)(PVRDMADev *dev, union pvrdma_cmd_req *req,
- union pvrdma_cmd_resp *rsp);
-};
-
-static struct cmd_handler cmd_handlers[] = {
- {PVRDMA_CMD_QUERY_PORT, PVRDMA_CMD_QUERY_PORT_RESP, query_port},
- {PVRDMA_CMD_QUERY_PKEY, PVRDMA_CMD_QUERY_PKEY_RESP, query_pkey},
- {PVRDMA_CMD_CREATE_PD, PVRDMA_CMD_CREATE_PD_RESP, create_pd},
- {PVRDMA_CMD_DESTROY_PD, PVRDMA_CMD_DESTROY_PD_RESP_NOOP, destroy_pd},
- {PVRDMA_CMD_CREATE_MR, PVRDMA_CMD_CREATE_MR_RESP, create_mr},
- {PVRDMA_CMD_DESTROY_MR, PVRDMA_CMD_DESTROY_MR_RESP_NOOP, destroy_mr},
- {PVRDMA_CMD_CREATE_CQ, PVRDMA_CMD_CREATE_CQ_RESP, create_cq},
- {PVRDMA_CMD_RESIZE_CQ, PVRDMA_CMD_RESIZE_CQ_RESP, NULL},
- {PVRDMA_CMD_DESTROY_CQ, PVRDMA_CMD_DESTROY_CQ_RESP_NOOP, destroy_cq},
- {PVRDMA_CMD_CREATE_QP, PVRDMA_CMD_CREATE_QP_RESP, create_qp},
- {PVRDMA_CMD_MODIFY_QP, PVRDMA_CMD_MODIFY_QP_RESP, modify_qp},
- {PVRDMA_CMD_QUERY_QP, PVRDMA_CMD_QUERY_QP_RESP, query_qp},
- {PVRDMA_CMD_DESTROY_QP, PVRDMA_CMD_DESTROY_QP_RESP, destroy_qp},
- {PVRDMA_CMD_CREATE_UC, PVRDMA_CMD_CREATE_UC_RESP, create_uc},
- {PVRDMA_CMD_DESTROY_UC, PVRDMA_CMD_DESTROY_UC_RESP_NOOP, destroy_uc},
- {PVRDMA_CMD_CREATE_BIND, PVRDMA_CMD_CREATE_BIND_RESP_NOOP, create_bind},
- {PVRDMA_CMD_DESTROY_BIND, PVRDMA_CMD_DESTROY_BIND_RESP_NOOP, destroy_bind},
- {PVRDMA_CMD_CREATE_SRQ, PVRDMA_CMD_CREATE_SRQ_RESP, create_srq},
- {PVRDMA_CMD_QUERY_SRQ, PVRDMA_CMD_QUERY_SRQ_RESP, query_srq},
- {PVRDMA_CMD_MODIFY_SRQ, PVRDMA_CMD_MODIFY_SRQ_RESP, modify_srq},
- {PVRDMA_CMD_DESTROY_SRQ, PVRDMA_CMD_DESTROY_SRQ_RESP, destroy_srq},
-};
-
-int pvrdma_exec_cmd(PVRDMADev *dev)
-{
- int err = 0xFFFF;
- DSRInfo *dsr_info;
-
- dsr_info = &dev->dsr_info;
-
- if (!dsr_info->dsr) {
- /* Buggy or malicious guest driver */
- rdma_error_report("Exec command without dsr, req or rsp buffers");
- goto out;
- }
-
- if (dsr_info->req->hdr.cmd >= sizeof(cmd_handlers) /
- sizeof(struct cmd_handler)) {
- rdma_error_report("Unsupported command");
- goto out;
- }
-
- if (!cmd_handlers[dsr_info->req->hdr.cmd].exec) {
- rdma_error_report("Unsupported command (not implemented yet)");
- goto out;
- }
-
- err = cmd_handlers[dsr_info->req->hdr.cmd].exec(dev, dsr_info->req,
- dsr_info->rsp);
- dsr_info->rsp->hdr.response = dsr_info->req->hdr.response;
- dsr_info->rsp->hdr.ack = cmd_handlers[dsr_info->req->hdr.cmd].ack;
- dsr_info->rsp->hdr.err = err < 0 ? -err : 0;
-
- trace_pvrdma_exec_cmd(dsr_info->req->hdr.cmd, dsr_info->rsp->hdr.err);
-
- dev->stats.commands++;
-
-out:
- set_reg_val(dev, PVRDMA_REG_ERR, err);
- post_interrupt(dev, INTR_VEC_CMD_RING);
-
- return (err == 0) ? 0 : -EINVAL;
-}
diff --git a/hw/rdma/vmw/pvrdma_dev_ring.c b/hw/rdma/vmw/pvrdma_dev_ring.c
deleted file mode 100644
index 30ce22a5be..0000000000
--- a/hw/rdma/vmw/pvrdma_dev_ring.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Device rings
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "hw/pci/pci.h"
-#include "cpu.h"
-#include "qemu/cutils.h"
-
-#include "trace.h"
-
-#include "../rdma_utils.h"
-#include "pvrdma_dev_ring.h"
-
-int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev,
- PvrdmaRingState *ring_state, uint32_t max_elems,
- size_t elem_sz, dma_addr_t *tbl, uint32_t npages)
-{
- int i;
- int rc = 0;
-
- pstrcpy(ring->name, MAX_RING_NAME_SZ, name);
- ring->dev = dev;
- ring->ring_state = ring_state;
- ring->max_elems = max_elems;
- ring->elem_sz = elem_sz;
- /* TODO: Give a moment to think if we want to redo driver settings
- qatomic_set(&ring->ring_state->prod_tail, 0);
- qatomic_set(&ring->ring_state->cons_head, 0);
- */
- ring->npages = npages;
- ring->pages = g_new0(void *, npages);
-
- for (i = 0; i < npages; i++) {
- if (!tbl[i]) {
- rdma_error_report("npages=%d but tbl[%d] is NULL", npages, i);
- continue;
- }
-
- ring->pages[i] = rdma_pci_dma_map(dev, tbl[i], TARGET_PAGE_SIZE);
- if (!ring->pages[i]) {
- rc = -ENOMEM;
- rdma_error_report("Failed to map to page %d in ring %s", i, name);
- goto out_free;
- }
- memset(ring->pages[i], 0, TARGET_PAGE_SIZE);
- }
-
- goto out;
-
-out_free:
- while (i--) {
- rdma_pci_dma_unmap(dev, ring->pages[i], TARGET_PAGE_SIZE);
- }
- g_free(ring->pages);
-
-out:
- return rc;
-}
-
-void *pvrdma_ring_next_elem_read(PvrdmaRing *ring)
-{
- unsigned int idx, offset;
- const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail);
- const uint32_t head = qatomic_read(&ring->ring_state->cons_head);
-
- if (tail & ~((ring->max_elems << 1) - 1) ||
- head & ~((ring->max_elems << 1) - 1) ||
- tail == head) {
- trace_pvrdma_ring_next_elem_read_no_data(ring->name);
- return NULL;
- }
-
- idx = head & (ring->max_elems - 1);
- offset = idx * ring->elem_sz;
- return ring->pages[offset / TARGET_PAGE_SIZE] + (offset %
TARGET_PAGE_SIZE);
-}
-
-void pvrdma_ring_read_inc(PvrdmaRing *ring)
-{
- uint32_t idx = qatomic_read(&ring->ring_state->cons_head);
-
- idx = (idx + 1) & ((ring->max_elems << 1) - 1);
- qatomic_set(&ring->ring_state->cons_head, idx);
-}
-
-void *pvrdma_ring_next_elem_write(PvrdmaRing *ring)
-{
- unsigned int idx, offset;
- const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail);
- const uint32_t head = qatomic_read(&ring->ring_state->cons_head);
-
- if (tail & ~((ring->max_elems << 1) - 1) ||
- head & ~((ring->max_elems << 1) - 1) ||
- tail == (head ^ ring->max_elems)) {
- rdma_error_report("CQ is full");
- return NULL;
- }
-
- idx = tail & (ring->max_elems - 1);
- offset = idx * ring->elem_sz;
- return ring->pages[offset / TARGET_PAGE_SIZE] + (offset %
TARGET_PAGE_SIZE);
-}
-
-void pvrdma_ring_write_inc(PvrdmaRing *ring)
-{
- uint32_t idx = qatomic_read(&ring->ring_state->prod_tail);
-
- idx = (idx + 1) & ((ring->max_elems << 1) - 1);
- qatomic_set(&ring->ring_state->prod_tail, idx);
-}
-
-void pvrdma_ring_free(PvrdmaRing *ring)
-{
- if (!ring) {
- return;
- }
-
- if (!ring->pages) {
- return;
- }
-
- while (ring->npages--) {
- rdma_pci_dma_unmap(ring->dev, ring->pages[ring->npages],
- TARGET_PAGE_SIZE);
- }
-
- g_free(ring->pages);
- ring->pages = NULL;
-}
diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c
deleted file mode 100644
index e735ff97eb..0000000000
--- a/hw/rdma/vmw/pvrdma_main.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/*
- * QEMU paravirtual RDMA
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/module.h"
-#include "hw/pci/pci.h"
-#include "hw/pci/pci_ids.h"
-#include "hw/pci/msi.h"
-#include "hw/pci/msix.h"
-#include "hw/qdev-properties.h"
-#include "hw/qdev-properties-system.h"
-#include "cpu.h"
-#include "trace.h"
-#include "monitor/monitor.h"
-#include "hw/rdma/rdma.h"
-
-#include "../rdma_rm.h"
-#include "../rdma_backend.h"
-#include "../rdma_utils.h"
-
-#include <infiniband/verbs.h>
-#include "pvrdma.h"
-#include "standard-headers/rdma/vmw_pvrdma-abi.h"
-#include "sysemu/runstate.h"
-#include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h"
-#include "pvrdma_qp_ops.h"
-
-static Property pvrdma_dev_properties[] = {
- DEFINE_PROP_STRING("netdev", PVRDMADev, backend_eth_device_name),
- DEFINE_PROP_STRING("ibdev", PVRDMADev, backend_device_name),
- DEFINE_PROP_UINT8("ibport", PVRDMADev, backend_port_num, 1),
- DEFINE_PROP_UINT64("dev-caps-max-mr-size", PVRDMADev, dev_attr.max_mr_size,
- MAX_MR_SIZE),
- DEFINE_PROP_INT32("dev-caps-max-qp", PVRDMADev, dev_attr.max_qp, MAX_QP),
- DEFINE_PROP_INT32("dev-caps-max-cq", PVRDMADev, dev_attr.max_cq, MAX_CQ),
- DEFINE_PROP_INT32("dev-caps-max-mr", PVRDMADev, dev_attr.max_mr, MAX_MR),
- DEFINE_PROP_INT32("dev-caps-max-pd", PVRDMADev, dev_attr.max_pd, MAX_PD),
- DEFINE_PROP_INT32("dev-caps-qp-rd-atom", PVRDMADev,
dev_attr.max_qp_rd_atom,
- MAX_QP_RD_ATOM),
- DEFINE_PROP_INT32("dev-caps-max-qp-init-rd-atom", PVRDMADev,
- dev_attr.max_qp_init_rd_atom, MAX_QP_INIT_RD_ATOM),
- DEFINE_PROP_INT32("dev-caps-max-ah", PVRDMADev, dev_attr.max_ah, MAX_AH),
- DEFINE_PROP_INT32("dev-caps-max-srq", PVRDMADev, dev_attr.max_srq,
MAX_SRQ),
- DEFINE_PROP_CHR("mad-chardev", PVRDMADev, mad_chr),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void pvrdma_format_statistics(RdmaProvider *obj, GString *buf)
-{
- PVRDMADev *dev = PVRDMA_DEV(obj);
- PCIDevice *pdev = PCI_DEVICE(dev);
-
- g_string_append_printf(buf, "%s, %x.%x\n",
- pdev->name, PCI_SLOT(pdev->devfn),
- PCI_FUNC(pdev->devfn));
- g_string_append_printf(buf, "\tcommands : %" PRId64 "\n",
- dev->stats.commands);
- g_string_append_printf(buf, "\tregs_reads : %" PRId64 "\n",
- dev->stats.regs_reads);
- g_string_append_printf(buf, "\tregs_writes : %" PRId64 "\n",
- dev->stats.regs_writes);
- g_string_append_printf(buf, "\tuar_writes : %" PRId64 "\n",
- dev->stats.uar_writes);
- g_string_append_printf(buf, "\tinterrupts : %" PRId64 "\n",
- dev->stats.interrupts);
- rdma_format_device_counters(&dev->rdma_dev_res, buf);
-}
-
-static void free_dev_ring(PCIDevice *pci_dev, PvrdmaRing *ring,
- void *ring_state)
-{
- pvrdma_ring_free(ring);
- rdma_pci_dma_unmap(pci_dev, ring_state, TARGET_PAGE_SIZE);
-}
-
-static int init_dev_ring(PvrdmaRing *ring, PvrdmaRingState **ring_state,
- const char *name, PCIDevice *pci_dev,
- dma_addr_t dir_addr, uint32_t num_pages)
-{
- uint64_t *dir, *tbl;
- int max_pages, rc = 0;
-
- if (!num_pages) {
- rdma_error_report("Ring pages count must be strictly positive");
- return -EINVAL;
- }
-
- /*
- * Make sure we can satisfy the requested number of pages in a single
- * TARGET_PAGE_SIZE sized page table (taking into account that first entry
- * is reserved for ring-state)
- */
- max_pages = TARGET_PAGE_SIZE / sizeof(dma_addr_t) - 1;
- if (num_pages > max_pages) {
- rdma_error_report("Maximum pages on a single directory must not exceed
%d\n",
- max_pages);
- return -EINVAL;
- }
-
- dir = rdma_pci_dma_map(pci_dev, dir_addr, TARGET_PAGE_SIZE);
- if (!dir) {
- rdma_error_report("Failed to map to page directory (ring %s)", name);
- rc = -ENOMEM;
- goto out;
- }
-
- /* We support only one page table for a ring */
- tbl = rdma_pci_dma_map(pci_dev, dir[0], TARGET_PAGE_SIZE);
- if (!tbl) {
- rdma_error_report("Failed to map to page table (ring %s)", name);
- rc = -ENOMEM;
- goto out_free_dir;
- }
-
- *ring_state = rdma_pci_dma_map(pci_dev, tbl[0], TARGET_PAGE_SIZE);
- if (!*ring_state) {
- rdma_error_report("Failed to map to ring state (ring %s)", name);
- rc = -ENOMEM;
- goto out_free_tbl;
- }
- /* RX ring is the second */
- (*ring_state)++;
- rc = pvrdma_ring_init(ring, name, pci_dev,
- (PvrdmaRingState *)*ring_state,
- (num_pages - 1) * TARGET_PAGE_SIZE /
- sizeof(struct pvrdma_cqne),
- sizeof(struct pvrdma_cqne),
- (dma_addr_t *)&tbl[1], (dma_addr_t)num_pages - 1);
- if (rc) {
- rc = -ENOMEM;
- goto out_free_ring_state;
- }
-
- goto out_free_tbl;
-
-out_free_ring_state:
- rdma_pci_dma_unmap(pci_dev, *ring_state, TARGET_PAGE_SIZE);
-
-out_free_tbl:
- rdma_pci_dma_unmap(pci_dev, tbl, TARGET_PAGE_SIZE);
-
-out_free_dir:
- rdma_pci_dma_unmap(pci_dev, dir, TARGET_PAGE_SIZE);
-
-out:
- return rc;
-}
-
-static void free_dsr(PVRDMADev *dev)
-{
- PCIDevice *pci_dev = PCI_DEVICE(dev);
-
- if (!dev->dsr_info.dsr) {
- return;
- }
-
- free_dev_ring(pci_dev, &dev->dsr_info.async,
- dev->dsr_info.async_ring_state);
-
- free_dev_ring(pci_dev, &dev->dsr_info.cq, dev->dsr_info.cq_ring_state);
-
- rdma_pci_dma_unmap(pci_dev, dev->dsr_info.req,
- sizeof(union pvrdma_cmd_req));
-
- rdma_pci_dma_unmap(pci_dev, dev->dsr_info.rsp,
- sizeof(union pvrdma_cmd_resp));
-
- rdma_pci_dma_unmap(pci_dev, dev->dsr_info.dsr,
- sizeof(struct pvrdma_device_shared_region));
-
- dev->dsr_info.dsr = NULL;
-}
-
-static int load_dsr(PVRDMADev *dev)
-{
- int rc = 0;
- PCIDevice *pci_dev = PCI_DEVICE(dev);
- DSRInfo *dsr_info;
- struct pvrdma_device_shared_region *dsr;
-
- free_dsr(dev);
-
- /* Map to DSR */
- dev->dsr_info.dsr = rdma_pci_dma_map(pci_dev, dev->dsr_info.dma,
- sizeof(struct pvrdma_device_shared_region));
- if (!dev->dsr_info.dsr) {
- rdma_error_report("Failed to map to DSR");
- rc = -ENOMEM;
- goto out;
- }
-
- /* Shortcuts */
- dsr_info = &dev->dsr_info;
- dsr = dsr_info->dsr;
-
- /* Map to command slot */
- dsr_info->req = rdma_pci_dma_map(pci_dev, dsr->cmd_slot_dma,
- sizeof(union pvrdma_cmd_req));
- if (!dsr_info->req) {
- rdma_error_report("Failed to map to command slot address");
- rc = -ENOMEM;
- goto out_free_dsr;
- }
-
- /* Map to response slot */
- dsr_info->rsp = rdma_pci_dma_map(pci_dev, dsr->resp_slot_dma,
- sizeof(union pvrdma_cmd_resp));
- if (!dsr_info->rsp) {
- rdma_error_report("Failed to map to response slot address");
- rc = -ENOMEM;
- goto out_free_req;
- }
-
- /* Map to CQ notification ring */
- rc = init_dev_ring(&dsr_info->cq, &dsr_info->cq_ring_state, "dev_cq",
- pci_dev, dsr->cq_ring_pages.pdir_dma,
- dsr->cq_ring_pages.num_pages);
- if (rc) {
- rc = -ENOMEM;
- goto out_free_rsp;
- }
-
- /* Map to event notification ring */
- rc = init_dev_ring(&dsr_info->async, &dsr_info->async_ring_state,
- "dev_async", pci_dev, dsr->async_ring_pages.pdir_dma,
- dsr->async_ring_pages.num_pages);
- if (rc) {
- rc = -ENOMEM;
- goto out_free_rsp;
- }
-
- goto out;
-
-out_free_rsp:
- rdma_pci_dma_unmap(pci_dev, dsr_info->rsp, sizeof(union pvrdma_cmd_resp));
-
-out_free_req:
- rdma_pci_dma_unmap(pci_dev, dsr_info->req, sizeof(union pvrdma_cmd_req));
-
-out_free_dsr:
- rdma_pci_dma_unmap(pci_dev, dsr_info->dsr,
- sizeof(struct pvrdma_device_shared_region));
- dsr_info->dsr = NULL;
-
-out:
- return rc;
-}
-
-static void init_dsr_dev_caps(PVRDMADev *dev)
-{
- struct pvrdma_device_shared_region *dsr;
-
- if (!dev->dsr_info.dsr) {
- /* Buggy or malicious guest driver */
- rdma_error_report("Can't initialized DSR");
- return;
- }
-
- dsr = dev->dsr_info.dsr;
- dsr->caps.fw_ver = PVRDMA_FW_VERSION;
- dsr->caps.mode = PVRDMA_DEVICE_MODE_ROCE;
- dsr->caps.gid_types |= PVRDMA_GID_TYPE_FLAG_ROCE_V1;
- dsr->caps.max_uar = RDMA_BAR2_UAR_SIZE;
- dsr->caps.max_mr_size = dev->dev_attr.max_mr_size;
- dsr->caps.max_qp = dev->dev_attr.max_qp;
- dsr->caps.max_qp_wr = dev->dev_attr.max_qp_wr;
- dsr->caps.max_sge = dev->dev_attr.max_sge;
- dsr->caps.max_cq = dev->dev_attr.max_cq;
- dsr->caps.max_cqe = dev->dev_attr.max_cqe;
- dsr->caps.max_mr = dev->dev_attr.max_mr;
- dsr->caps.max_pd = dev->dev_attr.max_pd;
- dsr->caps.max_ah = dev->dev_attr.max_ah;
- dsr->caps.max_srq = dev->dev_attr.max_srq;
- dsr->caps.max_srq_wr = dev->dev_attr.max_srq_wr;
- dsr->caps.max_srq_sge = dev->dev_attr.max_srq_sge;
- dsr->caps.gid_tbl_len = MAX_GIDS;
- dsr->caps.sys_image_guid = 0;
- dsr->caps.node_guid = dev->node_guid;
- dsr->caps.phys_port_cnt = MAX_PORTS;
- dsr->caps.max_pkeys = MAX_PKEYS;
-}
-
-static void uninit_msix(PCIDevice *pdev, int used_vectors)
-{
- PVRDMADev *dev = PVRDMA_DEV(pdev);
- int i;
-
- for (i = 0; i < used_vectors; i++) {
- msix_vector_unuse(pdev, i);
- }
-
- msix_uninit(pdev, &dev->msix, &dev->msix);
-}
-
-static int init_msix(PCIDevice *pdev)
-{
- PVRDMADev *dev = PVRDMA_DEV(pdev);
- int i;
- int rc;
-
- rc = msix_init(pdev, RDMA_MAX_INTRS, &dev->msix, RDMA_MSIX_BAR_IDX,
- RDMA_MSIX_TABLE, &dev->msix, RDMA_MSIX_BAR_IDX,
- RDMA_MSIX_PBA, 0, NULL);
-
- if (rc < 0) {
- rdma_error_report("Failed to initialize MSI-X");
- return rc;
- }
-
- for (i = 0; i < RDMA_MAX_INTRS; i++) {
- msix_vector_use(PCI_DEVICE(dev), i);
- }
-
- return 0;
-}
-
-static void pvrdma_fini(PCIDevice *pdev)
-{
- PVRDMADev *dev = PVRDMA_DEV(pdev);
-
- notifier_remove(&dev->shutdown_notifier);
-
- pvrdma_qp_ops_fini();
-
- rdma_backend_stop(&dev->backend_dev);
-
- rdma_rm_fini(&dev->rdma_dev_res, &dev->backend_dev,
- dev->backend_eth_device_name);
-
- rdma_backend_fini(&dev->backend_dev);
-
- free_dsr(dev);
-
- if (msix_enabled(pdev)) {
- uninit_msix(pdev, RDMA_MAX_INTRS);
- }
-
- rdma_info_report("Device %s %x.%x is down", pdev->name,
- PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
-}
-
-static void pvrdma_stop(PVRDMADev *dev)
-{
- rdma_backend_stop(&dev->backend_dev);
-}
-
-static void pvrdma_start(PVRDMADev *dev)
-{
- rdma_backend_start(&dev->backend_dev);
-}
-
-static void activate_device(PVRDMADev *dev)
-{
- pvrdma_start(dev);
- set_reg_val(dev, PVRDMA_REG_ERR, 0);
-}
-
-static int unquiesce_device(PVRDMADev *dev)
-{
- return 0;
-}
-
-static void reset_device(PVRDMADev *dev)
-{
- pvrdma_stop(dev);
-}
-
-static uint64_t pvrdma_regs_read(void *opaque, hwaddr addr, unsigned size)
-{
- PVRDMADev *dev = opaque;
- uint32_t val;
-
- dev->stats.regs_reads++;
-
- if (get_reg_val(dev, addr, &val)) {
- rdma_error_report("Failed to read REG value from address 0x%x",
- (uint32_t)addr);
- return -EINVAL;
- }
-
- trace_pvrdma_regs_read(addr, val);
-
- return val;
-}
-
-static void pvrdma_regs_write(void *opaque, hwaddr addr, uint64_t val,
- unsigned size)
-{
- PVRDMADev *dev = opaque;
-
- dev->stats.regs_writes++;
-
- if (set_reg_val(dev, addr, val)) {
- rdma_error_report("Failed to set REG value, addr=0x%"PRIx64 ",
val=0x%"PRIx64,
- addr, val);
- return;
- }
-
- switch (addr) {
- case PVRDMA_REG_DSRLOW:
- trace_pvrdma_regs_write(addr, val, "DSRLOW", "");
- dev->dsr_info.dma = val;
- break;
- case PVRDMA_REG_DSRHIGH:
- trace_pvrdma_regs_write(addr, val, "DSRHIGH", "");
- dev->dsr_info.dma |= val << 32;
- load_dsr(dev);
- init_dsr_dev_caps(dev);
- break;
- case PVRDMA_REG_CTL:
- switch (val) {
- case PVRDMA_DEVICE_CTL_ACTIVATE:
- trace_pvrdma_regs_write(addr, val, "CTL", "ACTIVATE");
- activate_device(dev);
- break;
- case PVRDMA_DEVICE_CTL_UNQUIESCE:
- trace_pvrdma_regs_write(addr, val, "CTL", "UNQUIESCE");
- unquiesce_device(dev);
- break;
- case PVRDMA_DEVICE_CTL_RESET:
- trace_pvrdma_regs_write(addr, val, "CTL", "URESET");
- reset_device(dev);
- break;
- }
- break;
- case PVRDMA_REG_IMR:
- trace_pvrdma_regs_write(addr, val, "INTR_MASK", "");
- dev->interrupt_mask = val;
- break;
- case PVRDMA_REG_REQUEST:
- if (val == 0) {
- trace_pvrdma_regs_write(addr, val, "REQUEST", "");
- pvrdma_exec_cmd(dev);
- }
- break;
- default:
- break;
- }
-}
-
-static const MemoryRegionOps regs_ops = {
- .read = pvrdma_regs_read,
- .write = pvrdma_regs_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .impl = {
- .min_access_size = sizeof(uint32_t),
- .max_access_size = sizeof(uint32_t),
- },
-};
-
-static uint64_t pvrdma_uar_read(void *opaque, hwaddr addr, unsigned size)
-{
- return 0xffffffff;
-}
-
-static void pvrdma_uar_write(void *opaque, hwaddr addr, uint64_t val,
- unsigned size)
-{
- PVRDMADev *dev = opaque;
-
- dev->stats.uar_writes++;
-
- switch (addr & 0xFFF) { /* Mask with 0xFFF as each UC gets page */
- case PVRDMA_UAR_QP_OFFSET:
- if (val & PVRDMA_UAR_QP_SEND) {
- trace_pvrdma_uar_write(addr, val, "QP", "SEND",
- val & PVRDMA_UAR_HANDLE_MASK, 0);
- pvrdma_qp_send(dev, val & PVRDMA_UAR_HANDLE_MASK);
- }
- if (val & PVRDMA_UAR_QP_RECV) {
- trace_pvrdma_uar_write(addr, val, "QP", "RECV",
- val & PVRDMA_UAR_HANDLE_MASK, 0);
- pvrdma_qp_recv(dev, val & PVRDMA_UAR_HANDLE_MASK);
- }
- break;
- case PVRDMA_UAR_CQ_OFFSET:
- if (val & PVRDMA_UAR_CQ_ARM) {
- trace_pvrdma_uar_write(addr, val, "CQ", "ARM",
- val & PVRDMA_UAR_HANDLE_MASK,
- !!(val & PVRDMA_UAR_CQ_ARM_SOL));
- rdma_rm_req_notify_cq(&dev->rdma_dev_res,
- val & PVRDMA_UAR_HANDLE_MASK,
- !!(val & PVRDMA_UAR_CQ_ARM_SOL));
- }
- if (val & PVRDMA_UAR_CQ_ARM_SOL) {
- trace_pvrdma_uar_write(addr, val, "CQ", "ARMSOL - not supported",
0,
- 0);
- }
- if (val & PVRDMA_UAR_CQ_POLL) {
- trace_pvrdma_uar_write(addr, val, "CQ", "POLL",
- val & PVRDMA_UAR_HANDLE_MASK, 0);
- pvrdma_cq_poll(&dev->rdma_dev_res, val & PVRDMA_UAR_HANDLE_MASK);
- }
- break;
- case PVRDMA_UAR_SRQ_OFFSET:
- if (val & PVRDMA_UAR_SRQ_RECV) {
- trace_pvrdma_uar_write(addr, val, "QP", "SRQ",
- val & PVRDMA_UAR_HANDLE_MASK, 0);
- pvrdma_srq_recv(dev, val & PVRDMA_UAR_HANDLE_MASK);
- }
- break;
- default:
- rdma_error_report("Unsupported command, addr=0x%"PRIx64",
val=0x%"PRIx64,
- addr, val);
- break;
- }
-}
-
-static const MemoryRegionOps uar_ops = {
- .read = pvrdma_uar_read,
- .write = pvrdma_uar_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .impl = {
- .min_access_size = sizeof(uint32_t),
- .max_access_size = sizeof(uint32_t),
- },
-};
-
-static void init_pci_config(PCIDevice *pdev)
-{
- pdev->config[PCI_INTERRUPT_PIN] = 1;
-}
-
-static void init_bars(PCIDevice *pdev)
-{
- PVRDMADev *dev = PVRDMA_DEV(pdev);
-
- /* BAR 0 - MSI-X */
- memory_region_init(&dev->msix, OBJECT(dev), "pvrdma-msix",
- RDMA_BAR0_MSIX_SIZE);
- pci_register_bar(pdev, RDMA_MSIX_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY,
- &dev->msix);
-
- /* BAR 1 - Registers */
- memset(&dev->regs_data, 0, sizeof(dev->regs_data));
- memory_region_init_io(&dev->regs, OBJECT(dev), ®s_ops, dev,
- "pvrdma-regs", sizeof(dev->regs_data));
- pci_register_bar(pdev, RDMA_REG_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY,
- &dev->regs);
-
- /* BAR 2 - UAR */
- memset(&dev->uar_data, 0, sizeof(dev->uar_data));
- memory_region_init_io(&dev->uar, OBJECT(dev), &uar_ops, dev, "rdma-uar",
- sizeof(dev->uar_data));
- pci_register_bar(pdev, RDMA_UAR_BAR_IDX, PCI_BASE_ADDRESS_SPACE_MEMORY,
- &dev->uar);
-}
-
-static void init_regs(PCIDevice *pdev)
-{
- PVRDMADev *dev = PVRDMA_DEV(pdev);
-
- set_reg_val(dev, PVRDMA_REG_VERSION, PVRDMA_HW_VERSION);
- set_reg_val(dev, PVRDMA_REG_ERR, 0xFFFF);
-}
-
-static void init_dev_caps(PVRDMADev *dev)
-{
- size_t pg_tbl_bytes = TARGET_PAGE_SIZE *
- (TARGET_PAGE_SIZE / sizeof(uint64_t));
- size_t wr_sz = MAX(sizeof(struct pvrdma_sq_wqe_hdr),
- sizeof(struct pvrdma_rq_wqe_hdr));
-
- dev->dev_attr.max_qp_wr = pg_tbl_bytes /
- (wr_sz + sizeof(struct pvrdma_sge) *
- dev->dev_attr.max_sge) - TARGET_PAGE_SIZE;
- /* First page is ring state ^^^^ */
-
- dev->dev_attr.max_cqe = pg_tbl_bytes / sizeof(struct pvrdma_cqe) -
- TARGET_PAGE_SIZE; /* First page is ring state */
-
- dev->dev_attr.max_srq_wr = pg_tbl_bytes /
- ((sizeof(struct pvrdma_rq_wqe_hdr) +
- sizeof(struct pvrdma_sge)) *
- dev->dev_attr.max_sge) - TARGET_PAGE_SIZE;
-}
-
-static int pvrdma_check_ram_shared(Object *obj, void *opaque)
-{
- bool *shared = opaque;
-
- if (object_dynamic_cast(obj, "memory-backend-ram")) {
- *shared = object_property_get_bool(obj, "share", NULL);
- }
-
- return 0;
-}
-
-static void pvrdma_shutdown_notifier(Notifier *n, void *opaque)
-{
- PVRDMADev *dev = container_of(n, PVRDMADev, shutdown_notifier);
- PCIDevice *pci_dev = PCI_DEVICE(dev);
-
- pvrdma_fini(pci_dev);
-}
-
-static void pvrdma_realize(PCIDevice *pdev, Error **errp)
-{
- int rc = 0;
- PVRDMADev *dev = PVRDMA_DEV(pdev);
- Object *memdev_root;
- bool ram_shared = false;
- PCIDevice *func0;
-
- warn_report_once("pvrdma is deprecated and will be removed in a future
release");
-
- rdma_info_report("Initializing device %s %x.%x", pdev->name,
- PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
-
- if (TARGET_PAGE_SIZE != qemu_real_host_page_size()) {
- error_setg(errp, "Target page size must be the same as host page
size");
- return;
- }
-
- func0 = pci_get_function_0(pdev);
- /* Break if not vmxnet3 device in slot 0 */
- if (strcmp(object_get_typename(OBJECT(func0)), TYPE_VMXNET3)) {
- error_setg(errp, "Device on %x.0 must be %s", PCI_SLOT(pdev->devfn),
- TYPE_VMXNET3);
- return;
- }
- dev->func0 = VMXNET3(func0);
-
- addrconf_addr_eui48((unsigned char *)&dev->node_guid,
- (const char *)&dev->func0->conf.macaddr.a);
-
- memdev_root = object_resolve_path("/objects", NULL);
- if (memdev_root) {
- object_child_foreach(memdev_root, pvrdma_check_ram_shared,
&ram_shared);
- }
- if (!ram_shared) {
- error_setg(errp, "Only shared memory backed ram is supported");
- return;
- }
-
- dev->dsr_info.dsr = NULL;
-
- init_pci_config(pdev);
-
- init_bars(pdev);
-
- init_regs(pdev);
-
- rc = init_msix(pdev);
- if (rc) {
- goto out;
- }
-
- rc = rdma_backend_init(&dev->backend_dev, pdev, &dev->rdma_dev_res,
- dev->backend_device_name, dev->backend_port_num,
- &dev->dev_attr, &dev->mad_chr);
- if (rc) {
- goto out;
- }
-
- init_dev_caps(dev);
-
- rc = rdma_rm_init(&dev->rdma_dev_res, &dev->dev_attr);
- if (rc) {
- goto out;
- }
-
- rc = pvrdma_qp_ops_init();
- if (rc) {
- goto out;
- }
-
- memset(&dev->stats, 0, sizeof(dev->stats));
-
- dev->shutdown_notifier.notify = pvrdma_shutdown_notifier;
- qemu_register_shutdown_notifier(&dev->shutdown_notifier);
-
-#ifdef LEGACY_RDMA_REG_MR
- rdma_info_report("Using legacy reg_mr");
-#else
- rdma_info_report("Using iova reg_mr");
-#endif
-
-out:
- if (rc) {
- pvrdma_fini(pdev);
- error_append_hint(errp, "Device failed to load\n");
- }
-}
-
-static void pvrdma_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
- RdmaProviderClass *ir = RDMA_PROVIDER_CLASS(klass);
-
- k->realize = pvrdma_realize;
- k->vendor_id = PCI_VENDOR_ID_VMWARE;
- k->device_id = PCI_DEVICE_ID_VMWARE_PVRDMA;
- k->revision = 0x00;
- k->class_id = PCI_CLASS_NETWORK_OTHER;
-
- dc->desc = "RDMA Device";
- device_class_set_props(dc, pvrdma_dev_properties);
- set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
-
- ir->format_statistics = pvrdma_format_statistics;
-}
-
-static const TypeInfo pvrdma_info = {
- .name = PVRDMA_HW_NAME,
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(PVRDMADev),
- .class_init = pvrdma_class_init,
- .interfaces = (InterfaceInfo[]) {
- { INTERFACE_CONVENTIONAL_PCI_DEVICE },
- { INTERFACE_RDMA_PROVIDER },
- { }
- }
-};
-
-static void register_types(void)
-{
- type_register_static(&pvrdma_info);
-}
-
-type_init(register_types)
diff --git a/hw/rdma/vmw/pvrdma_qp_ops.c b/hw/rdma/vmw/pvrdma_qp_ops.c
deleted file mode 100644
index c30c8344f6..0000000000
--- a/hw/rdma/vmw/pvrdma_qp_ops.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * QEMU paravirtual RDMA - QP implementation
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- * Yuval Shaia <yuval.shaia@oracle.com>
- * Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-
-#include "../rdma_utils.h"
-#include "../rdma_rm.h"
-#include "../rdma_backend.h"
-
-#include "trace.h"
-
-#include "pvrdma.h"
-#include "standard-headers/rdma/vmw_pvrdma-abi.h"
-#include "pvrdma_qp_ops.h"
-
-typedef struct CompHandlerCtx {
- PVRDMADev *dev;
- uint32_t cq_handle;
- struct pvrdma_cqe cqe;
-} CompHandlerCtx;
-
-/* Send Queue WQE */
-typedef struct PvrdmaSqWqe {
- struct pvrdma_sq_wqe_hdr hdr;
- struct pvrdma_sge sge[];
-} PvrdmaSqWqe;
-
-/* Recv Queue WQE */
-typedef struct PvrdmaRqWqe {
- struct pvrdma_rq_wqe_hdr hdr;
- struct pvrdma_sge sge[];
-} PvrdmaRqWqe;
-
-/*
- * 1. Put CQE on send CQ ring
- * 2. Put CQ number on dsr completion ring
- * 3. Interrupt host
- */
-static int pvrdma_post_cqe(PVRDMADev *dev, uint32_t cq_handle,
- struct pvrdma_cqe *cqe, struct ibv_wc *wc)
-{
- struct pvrdma_cqe *cqe1;
- struct pvrdma_cqne *cqne;
- PvrdmaRing *ring;
- RdmaRmCQ *cq = rdma_rm_get_cq(&dev->rdma_dev_res, cq_handle);
-
- if (unlikely(!cq)) {
- return -EINVAL;
- }
-
- ring = (PvrdmaRing *)cq->opaque;
-
- /* Step #1: Put CQE on CQ ring */
- cqe1 = pvrdma_ring_next_elem_write(ring);
- if (unlikely(!cqe1)) {
- return -EINVAL;
- }
-
- memset(cqe1, 0, sizeof(*cqe1));
- cqe1->wr_id = cqe->wr_id;
- cqe1->qp = cqe->qp ? cqe->qp : wc->qp_num;
- cqe1->opcode = cqe->opcode;
- cqe1->status = wc->status;
- cqe1->byte_len = wc->byte_len;
- cqe1->src_qp = wc->src_qp;
- cqe1->wc_flags = wc->wc_flags;
- cqe1->vendor_err = wc->vendor_err;
-
- trace_pvrdma_post_cqe(cq_handle, cq->notify, cqe1->wr_id, cqe1->qp,
- cqe1->opcode, cqe1->status, cqe1->byte_len,
- cqe1->src_qp, cqe1->wc_flags, cqe1->vendor_err);
-
- pvrdma_ring_write_inc(ring);
-
- /* Step #2: Put CQ number on dsr completion ring */
- cqne = pvrdma_ring_next_elem_write(&dev->dsr_info.cq);
- if (unlikely(!cqne)) {
- return -EINVAL;
- }
-
- cqne->info = cq_handle;
- pvrdma_ring_write_inc(&dev->dsr_info.cq);
-
- if (cq->notify != CNT_CLEAR) {
- if (cq->notify == CNT_ARM) {
- cq->notify = CNT_CLEAR;
- }
- post_interrupt(dev, INTR_VEC_CMD_COMPLETION_Q);
- }
-
- return 0;
-}
-
-static void pvrdma_qp_ops_comp_handler(void *ctx, struct ibv_wc *wc)
-{
- CompHandlerCtx *comp_ctx = (CompHandlerCtx *)ctx;
-
- pvrdma_post_cqe(comp_ctx->dev, comp_ctx->cq_handle, &comp_ctx->cqe, wc);
-
- g_free(ctx);
-}
-
-static void complete_with_error(uint32_t vendor_err, void *ctx)
-{
- struct ibv_wc wc = {};
-
- wc.status = IBV_WC_GENERAL_ERR;
- wc.vendor_err = vendor_err;
-
- pvrdma_qp_ops_comp_handler(ctx, &wc);
-}
-
-void pvrdma_qp_ops_fini(void)
-{
- rdma_backend_unregister_comp_handler();
-}
-
-int pvrdma_qp_ops_init(void)
-{
- rdma_backend_register_comp_handler(pvrdma_qp_ops_comp_handler);
-
- return 0;
-}
-
-void pvrdma_qp_send(PVRDMADev *dev, uint32_t qp_handle)
-{
- RdmaRmQP *qp;
- PvrdmaSqWqe *wqe;
- PvrdmaRing *ring;
- int sgid_idx;
- union ibv_gid *sgid;
-
- qp = rdma_rm_get_qp(&dev->rdma_dev_res, qp_handle);
- if (unlikely(!qp)) {
- return;
- }
-
- ring = (PvrdmaRing *)qp->opaque;
-
- wqe = pvrdma_ring_next_elem_read(ring);
- while (wqe) {
- CompHandlerCtx *comp_ctx;
-
- /* Prepare CQE */
- comp_ctx = g_new(CompHandlerCtx, 1);
- comp_ctx->dev = dev;
- comp_ctx->cq_handle = qp->send_cq_handle;
- comp_ctx->cqe.wr_id = wqe->hdr.wr_id;
- comp_ctx->cqe.qp = qp_handle;
- comp_ctx->cqe.opcode = IBV_WC_SEND;
-
- sgid = rdma_rm_get_gid(&dev->rdma_dev_res,
wqe->hdr.wr.ud.av.gid_index);
- if (!sgid) {
- rdma_error_report("Failed to get gid for idx %d",
- wqe->hdr.wr.ud.av.gid_index);
- complete_with_error(VENDOR_ERR_INV_GID_IDX, comp_ctx);
- continue;
- }
-
- sgid_idx = rdma_rm_get_backend_gid_index(&dev->rdma_dev_res,
- &dev->backend_dev,
- wqe->hdr.wr.ud.av.gid_index);
- if (sgid_idx <= 0) {
- rdma_error_report("Failed to get bk sgid_idx for sgid_idx %d",
- wqe->hdr.wr.ud.av.gid_index);
- complete_with_error(VENDOR_ERR_INV_GID_IDX, comp_ctx);
- continue;
- }
-
- if (wqe->hdr.num_sge > dev->dev_attr.max_sge) {
- rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge,
- dev->dev_attr.max_sge);
- complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx);
- continue;
- }
-
- rdma_backend_post_send(&dev->backend_dev, &qp->backend_qp, qp->qp_type,
- (struct ibv_sge *)&wqe->sge[0],
wqe->hdr.num_sge,
- sgid_idx, sgid,
- (union ibv_gid *)wqe->hdr.wr.ud.av.dgid,
- wqe->hdr.wr.ud.remote_qpn,
- wqe->hdr.wr.ud.remote_qkey, comp_ctx);
-
- pvrdma_ring_read_inc(ring);
-
- wqe = pvrdma_ring_next_elem_read(ring);
- }
-}
-
-void pvrdma_qp_recv(PVRDMADev *dev, uint32_t qp_handle)
-{
- RdmaRmQP *qp;
- PvrdmaRqWqe *wqe;
- PvrdmaRing *ring;
-
- qp = rdma_rm_get_qp(&dev->rdma_dev_res, qp_handle);
- if (unlikely(!qp)) {
- return;
- }
-
- ring = &((PvrdmaRing *)qp->opaque)[1];
-
- wqe = pvrdma_ring_next_elem_read(ring);
- while (wqe) {
- CompHandlerCtx *comp_ctx;
-
- /* Prepare CQE */
- comp_ctx = g_new(CompHandlerCtx, 1);
- comp_ctx->dev = dev;
- comp_ctx->cq_handle = qp->recv_cq_handle;
- comp_ctx->cqe.wr_id = wqe->hdr.wr_id;
- comp_ctx->cqe.qp = qp_handle;
- comp_ctx->cqe.opcode = IBV_WC_RECV;
-
- if (wqe->hdr.num_sge > dev->dev_attr.max_sge) {
- rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge,
- dev->dev_attr.max_sge);
- complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx);
- continue;
- }
-
- rdma_backend_post_recv(&dev->backend_dev, &qp->backend_qp, qp->qp_type,
- (struct ibv_sge *)&wqe->sge[0],
wqe->hdr.num_sge,
- comp_ctx);
-
- pvrdma_ring_read_inc(ring);
-
- wqe = pvrdma_ring_next_elem_read(ring);
- }
-}
-
-void pvrdma_srq_recv(PVRDMADev *dev, uint32_t srq_handle)
-{
- RdmaRmSRQ *srq;
- PvrdmaRqWqe *wqe;
- PvrdmaRing *ring;
-
- srq = rdma_rm_get_srq(&dev->rdma_dev_res, srq_handle);
- if (unlikely(!srq)) {
- return;
- }
-
- ring = (PvrdmaRing *)srq->opaque;
-
- wqe = pvrdma_ring_next_elem_read(ring);
- while (wqe) {
- CompHandlerCtx *comp_ctx;
-
- /* Prepare CQE */
- comp_ctx = g_new(CompHandlerCtx, 1);
- comp_ctx->dev = dev;
- comp_ctx->cq_handle = srq->recv_cq_handle;
- comp_ctx->cqe.wr_id = wqe->hdr.wr_id;
- comp_ctx->cqe.qp = 0;
- comp_ctx->cqe.opcode = IBV_WC_RECV;
-
- if (wqe->hdr.num_sge > dev->dev_attr.max_sge) {
- rdma_error_report("Invalid num_sge=%d (max %d)", wqe->hdr.num_sge,
- dev->dev_attr.max_sge);
- complete_with_error(VENDOR_ERR_INV_NUM_SGE, comp_ctx);
- continue;
- }
-
- rdma_backend_post_srq_recv(&dev->backend_dev, &srq->backend_srq,
- (struct ibv_sge *)&wqe->sge[0],
- wqe->hdr.num_sge,
- comp_ctx);
-
- pvrdma_ring_read_inc(ring);
-
- wqe = pvrdma_ring_next_elem_read(ring);
- }
-
-}
-
-void pvrdma_cq_poll(RdmaDeviceResources *dev_res, uint32_t cq_handle)
-{
- RdmaRmCQ *cq;
-
- cq = rdma_rm_get_cq(dev_res, cq_handle);
- if (!cq) {
- return;
- }
-
- rdma_backend_poll_cq(dev_res, &cq->backend_cq);
-}
diff --git a/migration/migration-stats.c b/migration/migration-stats.c
index f690b98a03..9bc8d7018f 100644
--- a/migration/migration-stats.c
+++ b/migration/migration-stats.c
@@ -62,9 +62,8 @@ void migration_rate_reset(void)
uint64_t migration_transferred_bytes(void)
{
uint64_t multifd = stat64_get(&mig_stats.multifd_bytes);
- uint64_t rdma = stat64_get(&mig_stats.rdma_bytes);
uint64_t qemu_file = stat64_get(&mig_stats.qemu_file_transferred);
- trace_migration_transferred_bytes(qemu_file, multifd, rdma);
- return qemu_file + multifd + rdma;
+ trace_migration_transferred_bytes(qemu_file, multifd);
+ return qemu_file + multifd;
}
diff --git a/migration/migration.c b/migration/migration.c
index 9fe8fd2afd..8e17914c8b 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -25,7 +25,6 @@
#include "sysemu/runstate.h"
#include "sysemu/sysemu.h"
#include "sysemu/cpu-throttle.h"
-#include "rdma.h"
#include "ram.h"
#include "ram-compress.h"
#include "migration/global_state.h"
@@ -545,7 +544,6 @@ bool migrate_uri_parse(const char *uri, MigrationChannel
**channel,
{
g_autoptr(MigrationChannel) val = g_new0(MigrationChannel, 1);
g_autoptr(MigrationAddress) addr = g_new0(MigrationAddress, 1);
- InetSocketAddress *isock = &addr->u.rdma;
strList **tail = &addr->u.exec.args;
if (strstart(uri, "exec:", NULL)) {
@@ -558,12 +556,6 @@ bool migrate_uri_parse(const char *uri, MigrationChannel
**channel,
QAPI_LIST_APPEND(tail, g_strdup("-c"));
#endif
QAPI_LIST_APPEND(tail, g_strdup(uri + strlen("exec:")));
- } else if (strstart(uri, "rdma:", NULL)) {
- if (inet_parse(isock, uri + strlen("rdma:"), errp)) {
- qapi_free_InetSocketAddress(isock);
- return false;
- }
- addr->transport = MIGRATION_ADDRESS_TYPE_RDMA;
} else if (strstart(uri, "tcp:", NULL) ||
strstart(uri, "unix:", NULL) ||
strstart(uri, "vsock:", NULL) ||
@@ -645,22 +637,6 @@ static void qemu_start_incoming_migration(const char *uri,
bool has_channels,
} else if (saddr->type == SOCKET_ADDRESS_TYPE_FD) {
fd_start_incoming_migration(saddr->u.fd.str, errp);
}
-#ifdef CONFIG_RDMA
- } else if (addr->transport == MIGRATION_ADDRESS_TYPE_RDMA) {
- if (migrate_compress()) {
- error_setg(errp, "RDMA and compression can't be used together");
- return;
- }
- if (migrate_xbzrle()) {
- error_setg(errp, "RDMA and XBZRLE can't be used together");
- return;
- }
- if (migrate_multifd()) {
- error_setg(errp, "RDMA and multifd can't be used together");
- return;
- }
- rdma_start_incoming_migration(&addr->u.rdma, errp);
-#endif
} else if (addr->transport == MIGRATION_ADDRESS_TYPE_EXEC) {
exec_start_incoming_migration(addr->u.exec.args, errp);
} else if (addr->transport == MIGRATION_ADDRESS_TYPE_FILE) {
@@ -751,9 +727,7 @@ process_incoming_migration_co(void *opaque)
migrate_set_state(&mis->state, MIGRATION_STATUS_SETUP,
MIGRATION_STATUS_ACTIVE);
- mis->loadvm_co = qemu_coroutine_self();
ret = qemu_loadvm_state(mis->from_src_file);
- mis->loadvm_co = NULL;
trace_vmstate_downtime_checkpoint("dst-precopy-loadvm-completed");
@@ -1679,7 +1653,6 @@ int migrate_init(MigrationState *s, Error **errp)
s->iteration_initial_bytes = 0;
s->threshold_size = 0;
s->switchover_acked = false;
- s->rdma_migration = false;
/*
* set mig_stats memory to zero for a new migration
*/
@@ -2100,10 +2073,6 @@ void qmp_migrate(const char *uri, bool has_channels,
} else if (saddr->type == SOCKET_ADDRESS_TYPE_FD) {
fd_start_outgoing_migration(s, saddr->u.fd.str, &local_err);
}
-#ifdef CONFIG_RDMA
- } else if (addr->transport == MIGRATION_ADDRESS_TYPE_RDMA) {
- rdma_start_outgoing_migration(s, &addr->u.rdma, &local_err);
-#endif
} else if (addr->transport == MIGRATION_ADDRESS_TYPE_EXEC) {
exec_start_outgoing_migration(s, addr->u.exec.args, &local_err);
} else if (addr->transport == MIGRATION_ADDRESS_TYPE_FILE) {
diff --git a/migration/options.c b/migration/options.c
index bfd7753b69..02fc0b9ae8 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -185,7 +185,6 @@ Property migration_properties[] = {
/* Migration capabilities */
DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE),
- DEFINE_PROP_MIG_CAP("x-rdma-pin-all", MIGRATION_CAPABILITY_RDMA_PIN_ALL),
DEFINE_PROP_MIG_CAP("x-auto-converge", MIGRATION_CAPABILITY_AUTO_CONVERGE),
DEFINE_PROP_MIG_CAP("x-zero-blocks", MIGRATION_CAPABILITY_ZERO_BLOCKS),
DEFINE_PROP_MIG_CAP("x-compress", MIGRATION_CAPABILITY_COMPRESS),
@@ -323,13 +322,6 @@ bool migrate_postcopy_ram(void)
return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_RAM];
}
-bool migrate_rdma_pin_all(void)
-{
- MigrationState *s = migrate_get_current();
-
- return s->capabilities[MIGRATION_CAPABILITY_RDMA_PIN_ALL];
-}
-
bool migrate_release_ram(void)
{
MigrationState *s = migrate_get_current();
@@ -393,13 +385,6 @@ bool migrate_postcopy(void)
return migrate_postcopy_ram() || migrate_dirty_bitmaps();
}
-bool migrate_rdma(void)
-{
- MigrationState *s = migrate_get_current();
-
- return s->rdma_migration;
-}
-
bool migrate_tls(void)
{
MigrationState *s = migrate_get_current();
@@ -458,7 +443,6 @@ INITIALIZE_MIGRATE_CAPS_SET(check_caps_background_snapshot,
MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER,
MIGRATION_CAPABILITY_AUTO_CONVERGE,
MIGRATION_CAPABILITY_RELEASE_RAM,
- MIGRATION_CAPABILITY_RDMA_PIN_ALL,
MIGRATION_CAPABILITY_COMPRESS,
MIGRATION_CAPABILITY_XBZRLE,
MIGRATION_CAPABILITY_X_COLO,
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index a10882d47f..ad2efb332e 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -32,7 +32,6 @@
#include "trace.h"
#include "options.h"
#include "qapi/error.h"
-#include "rdma.h"
#include "io/channel-file.h"
#define IO_BUF_SIZE 32768
diff --git a/migration/ram.c b/migration/ram.c
index 8deb84984f..c81c8a7cff 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -59,7 +59,6 @@
#include "qemu/iov.h"
#include "multifd.h"
#include "sysemu/runstate.h"
-#include "rdma.h"
#include "options.h"
#include "sysemu/dirtylimit.h"
#include "sysemu/kvm.h"
@@ -89,7 +88,7 @@
#define RAM_SAVE_FLAG_EOS 0x10
#define RAM_SAVE_FLAG_CONTINUE 0x20
#define RAM_SAVE_FLAG_XBZRLE 0x40
-/* 0x80 is reserved in rdma.h for RAM_SAVE_FLAG_HOOK */
+#define RAM_SAVE_FLAG_HOOK 0x80 /* was reserved by RDMA */
#define RAM_SAVE_FLAG_COMPRESS_PAGE 0x100
#define RAM_SAVE_FLAG_MULTIFD_FLUSH 0x200
/* We can't use any flag that is bigger than 0x200 */
@@ -1175,32 +1174,6 @@ static int save_zero_page(RAMState *rs, PageSearchStatus
*pss,
return len;
}
-/*
- * @pages: the number of pages written by the control path,
- * < 0 - error
- * > 0 - number of pages written
- *
- * Return true if the pages has been saved, otherwise false is returned.
- */
-static bool control_save_page(PageSearchStatus *pss,
- ram_addr_t offset, int *pages)
-{
- int ret;
-
- ret = rdma_control_save_page(pss->pss_channel, pss->block->offset, offset,
- TARGET_PAGE_SIZE);
- if (ret == RAM_SAVE_CONTROL_NOT_SUPP) {
- return false;
- }
-
- if (ret == RAM_SAVE_CONTROL_DELAYED) {
- *pages = 1;
- return true;
- }
- *pages = ret;
- return true;
-}
-
/*
* directly send the page to the stream
*
@@ -2080,11 +2053,6 @@ static bool save_compress_page(RAMState *rs,
PageSearchStatus *pss,
static int ram_save_target_page_legacy(RAMState *rs, PageSearchStatus *pss)
{
ram_addr_t offset = ((ram_addr_t)pss->page) << TARGET_PAGE_BITS;
- int res;
-
- if (control_save_page(pss, offset, &res)) {
- return res;
- }
if (save_compress_page(rs, pss, offset)) {
return 1;
@@ -3114,18 +3082,6 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
}
}
- ret = rdma_registration_start(f, RAM_CONTROL_SETUP);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- return ret;
- }
-
- ret = rdma_registration_stop(f, RAM_CONTROL_SETUP);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- return ret;
- }
-
migration_ops = g_malloc0(sizeof(MigrationOps));
if (migrate_multifd()) {
@@ -3221,12 +3177,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
/* Read version before ram_list.blocks */
smp_rmb();
- ret = rdma_registration_start(f, RAM_CONTROL_ROUND);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- goto out;
- }
-
t0 = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
i = 0;
while ((ret = migration_rate_exceeded(f)) == 0 ||
@@ -3278,15 +3228,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
}
}
- /*
- * Must occur before EOS (or any QEMUFile operation)
- * because of RDMA protocol.
- */
- ret = rdma_registration_stop(f, RAM_CONTROL_ROUND);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- }
-
out:
if (ret >= 0
&& migration_is_setup_or_active()) {
@@ -3332,12 +3273,6 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
migration_bitmap_sync_precopy(rs, true);
}
- ret = rdma_registration_start(f, RAM_CONTROL_FINISH);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- return ret;
- }
-
/* try transferring iterative blocks of memory */
/* flush all remaining blocks regardless of rate limiting */
@@ -3358,12 +3293,6 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
qemu_mutex_unlock(&rs->bitmap_mutex);
compress_flush_data();
-
- ret = rdma_registration_stop(f, RAM_CONTROL_FINISH);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- return ret;
- }
}
ret = multifd_send_sync_main();
@@ -3576,8 +3505,7 @@ static inline void *colo_cache_from_block_offset(RAMBlock
*block,
/**
* ram_handle_zero: handle the zero page case
*
- * If a page (or a whole RDMA chunk) has been
- * determined to be zero, then zap it.
+ * If a page has been determined to be zero, then zap it.
*
* @host: host address for the zero page
* @ch: what the page is filled from. We only support zero
@@ -4161,10 +4089,6 @@ static int parse_ramblock(QEMUFile *f, RAMBlock *block,
ram_addr_t length)
return -EINVAL;
}
}
- ret = rdma_block_notification_handle(f, block->idstr);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- }
return ret;
}
@@ -4363,12 +4287,6 @@ static int ram_load_precopy(QEMUFile *f)
multifd_recv_sync_main();
}
break;
- case RAM_SAVE_FLAG_HOOK:
- ret = rdma_registration_handle(f);
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- }
- break;
default:
error_report("Unknown combination of migration flags: 0x%x",
flags);
ret = -EINVAL;
diff --git a/migration/rdma.c b/migration/rdma.c
deleted file mode 100644
index 855753c671..0000000000
--- a/migration/rdma.c
+++ /dev/null
@@ -1,4184 +0,0 @@
-/*
- * RDMA protocol and interfaces
- *
- * Copyright IBM, Corp. 2010-2013
- * Copyright Red Hat, Inc. 2015-2016
- *
- * Authors:
- * Michael R. Hines <mrhines@us.ibm.com>
- * Jiuxing Liu <jl@us.ibm.com>
- * Daniel P. Berrange <berrange@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later. See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/cutils.h"
-#include "exec/target_page.h"
-#include "rdma.h"
-#include "migration.h"
-#include "migration-stats.h"
-#include "qemu-file.h"
-#include "ram.h"
-#include "qemu/error-report.h"
-#include "qemu/main-loop.h"
-#include "qemu/module.h"
-#include "qemu/rcu.h"
-#include "qemu/sockets.h"
-#include "qemu/bitmap.h"
-#include "qemu/coroutine.h"
-#include "exec/memory.h"
-#include <sys/socket.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <rdma/rdma_cma.h>
-#include "trace.h"
-#include "qom/object.h"
-#include "options.h"
-#include <poll.h>
-
-#define RDMA_RESOLVE_TIMEOUT_MS 10000
-
-/* Do not merge data if larger than this. */
-#define RDMA_MERGE_MAX (2 * 1024 * 1024)
-#define RDMA_SIGNALED_SEND_MAX (RDMA_MERGE_MAX / 4096)
-
-#define RDMA_REG_CHUNK_SHIFT 20 /* 1 MB */
-
-/*
- * This is only for non-live state being migrated.
- * Instead of RDMA_WRITE messages, we use RDMA_SEND
- * messages for that state, which requires a different
- * delivery design than main memory.
- */
-#define RDMA_SEND_INCREMENT 32768
-
-/*
- * Maximum size infiniband SEND message
- */
-#define RDMA_CONTROL_MAX_BUFFER (512 * 1024)
-#define RDMA_CONTROL_MAX_COMMANDS_PER_MESSAGE 4096
-
-#define RDMA_CONTROL_VERSION_CURRENT 1
-/*
- * Capabilities for negotiation.
- */
-#define RDMA_CAPABILITY_PIN_ALL 0x01
-
-/*
- * Add the other flags above to this list of known capabilities
- * as they are introduced.
- */
-static uint32_t known_capabilities = RDMA_CAPABILITY_PIN_ALL;
-
-/*
- * A work request ID is 64-bits and we split up these bits
- * into 3 parts:
- *
- * bits 0-15 : type of control message, 2^16
- * bits 16-29: ram block index, 2^14
- * bits 30-63: ram block chunk number, 2^34
- *
- * The last two bit ranges are only used for RDMA writes,
- * in order to track their completion and potentially
- * also track unregistration status of the message.
- */
-#define RDMA_WRID_TYPE_SHIFT 0UL
-#define RDMA_WRID_BLOCK_SHIFT 16UL
-#define RDMA_WRID_CHUNK_SHIFT 30UL
-
-#define RDMA_WRID_TYPE_MASK \
- ((1UL << RDMA_WRID_BLOCK_SHIFT) - 1UL)
-
-#define RDMA_WRID_BLOCK_MASK \
- (~RDMA_WRID_TYPE_MASK & ((1UL << RDMA_WRID_CHUNK_SHIFT) - 1UL))
-
-#define RDMA_WRID_CHUNK_MASK (~RDMA_WRID_BLOCK_MASK & ~RDMA_WRID_TYPE_MASK)
-
-/*
- * RDMA migration protocol:
- * 1. RDMA Writes (data messages, i.e. RAM)
- * 2. IB Send/Recv (control channel messages)
- */
-enum {
- RDMA_WRID_NONE = 0,
- RDMA_WRID_RDMA_WRITE = 1,
- RDMA_WRID_SEND_CONTROL = 2000,
- RDMA_WRID_RECV_CONTROL = 4000,
-};
-
-/*
- * Work request IDs for IB SEND messages only (not RDMA writes).
- * This is used by the migration protocol to transmit
- * control messages (such as device state and registration commands)
- *
- * We could use more WRs, but we have enough for now.
- */
-enum {
- RDMA_WRID_READY = 0,
- RDMA_WRID_DATA,
- RDMA_WRID_CONTROL,
- RDMA_WRID_MAX,
-};
-
-/*
- * SEND/RECV IB Control Messages.
- */
-enum {
- RDMA_CONTROL_NONE = 0,
- RDMA_CONTROL_ERROR,
- RDMA_CONTROL_READY, /* ready to receive */
- RDMA_CONTROL_QEMU_FILE, /* QEMUFile-transmitted bytes */
- RDMA_CONTROL_RAM_BLOCKS_REQUEST, /* RAMBlock synchronization */
- RDMA_CONTROL_RAM_BLOCKS_RESULT, /* RAMBlock synchronization */
- RDMA_CONTROL_COMPRESS, /* page contains repeat values */
- RDMA_CONTROL_REGISTER_REQUEST, /* dynamic page registration */
- RDMA_CONTROL_REGISTER_RESULT, /* key to use after registration */
- RDMA_CONTROL_REGISTER_FINISHED, /* current iteration finished */
- RDMA_CONTROL_UNREGISTER_REQUEST, /* dynamic UN-registration */
- RDMA_CONTROL_UNREGISTER_FINISHED, /* unpinning finished */
-};
-
-
-/*
- * Memory and MR structures used to represent an IB Send/Recv work request.
- * This is *not* used for RDMA writes, only IB Send/Recv.
- */
-typedef struct {
- uint8_t control[RDMA_CONTROL_MAX_BUFFER]; /* actual buffer to register */
- struct ibv_mr *control_mr; /* registration metadata */
- size_t control_len; /* length of the message */
- uint8_t *control_curr; /* start of unconsumed bytes */
-} RDMAWorkRequestData;
-
-/*
- * Negotiate RDMA capabilities during connection-setup time.
- */
-typedef struct {
- uint32_t version;
- uint32_t flags;
-} RDMACapabilities;
-
-static void caps_to_network(RDMACapabilities *cap)
-{
- cap->version = htonl(cap->version);
- cap->flags = htonl(cap->flags);
-}
-
-static void network_to_caps(RDMACapabilities *cap)
-{
- cap->version = ntohl(cap->version);
- cap->flags = ntohl(cap->flags);
-}
-
-/*
- * Representation of a RAMBlock from an RDMA perspective.
- * This is not transmitted, only local.
- * This and subsequent structures cannot be linked lists
- * because we're using a single IB message to transmit
- * the information. It's small anyway, so a list is overkill.
- */
-typedef struct RDMALocalBlock {
- char *block_name;
- uint8_t *local_host_addr; /* local virtual address */
- uint64_t remote_host_addr; /* remote virtual address */
- uint64_t offset;
- uint64_t length;
- struct ibv_mr **pmr; /* MRs for chunk-level registration */
- struct ibv_mr *mr; /* MR for non-chunk-level registration */
- uint32_t *remote_keys; /* rkeys for chunk-level registration */
- uint32_t remote_rkey; /* rkeys for non-chunk-level registration
*/
- int index; /* which block are we */
- unsigned int src_index; /* (Only used on dest) */
- bool is_ram_block;
- int nb_chunks;
- unsigned long *transit_bitmap;
- unsigned long *unregister_bitmap;
-} RDMALocalBlock;
-
-/*
- * Also represents a RAMblock, but only on the dest.
- * This gets transmitted by the dest during connection-time
- * to the source VM and then is used to populate the
- * corresponding RDMALocalBlock with
- * the information needed to perform the actual RDMA.
- */
-typedef struct QEMU_PACKED RDMADestBlock {
- uint64_t remote_host_addr;
- uint64_t offset;
- uint64_t length;
- uint32_t remote_rkey;
- uint32_t padding;
-} RDMADestBlock;
-
-static const char *control_desc(unsigned int rdma_control)
-{
- static const char *strs[] = {
- [RDMA_CONTROL_NONE] = "NONE",
- [RDMA_CONTROL_ERROR] = "ERROR",
- [RDMA_CONTROL_READY] = "READY",
- [RDMA_CONTROL_QEMU_FILE] = "QEMU FILE",
- [RDMA_CONTROL_RAM_BLOCKS_REQUEST] = "RAM BLOCKS REQUEST",
- [RDMA_CONTROL_RAM_BLOCKS_RESULT] = "RAM BLOCKS RESULT",
- [RDMA_CONTROL_COMPRESS] = "COMPRESS",
- [RDMA_CONTROL_REGISTER_REQUEST] = "REGISTER REQUEST",
- [RDMA_CONTROL_REGISTER_RESULT] = "REGISTER RESULT",
- [RDMA_CONTROL_REGISTER_FINISHED] = "REGISTER FINISHED",
- [RDMA_CONTROL_UNREGISTER_REQUEST] = "UNREGISTER REQUEST",
- [RDMA_CONTROL_UNREGISTER_FINISHED] = "UNREGISTER FINISHED",
- };
-
- if (rdma_control > RDMA_CONTROL_UNREGISTER_FINISHED) {
- return "??BAD CONTROL VALUE??";
- }
-
- return strs[rdma_control];
-}
-
-#if !defined(htonll)
-static uint64_t htonll(uint64_t v)
-{
- union { uint32_t lv[2]; uint64_t llv; } u;
- u.lv[0] = htonl(v >> 32);
- u.lv[1] = htonl(v & 0xFFFFFFFFULL);
- return u.llv;
-}
-#endif
-
-#if !defined(ntohll)
-static uint64_t ntohll(uint64_t v)
-{
- union { uint32_t lv[2]; uint64_t llv; } u;
- u.llv = v;
- return ((uint64_t)ntohl(u.lv[0]) << 32) | (uint64_t) ntohl(u.lv[1]);
-}
-#endif
-
-static void dest_block_to_network(RDMADestBlock *db)
-{
- db->remote_host_addr = htonll(db->remote_host_addr);
- db->offset = htonll(db->offset);
- db->length = htonll(db->length);
- db->remote_rkey = htonl(db->remote_rkey);
-}
-
-static void network_to_dest_block(RDMADestBlock *db)
-{
- db->remote_host_addr = ntohll(db->remote_host_addr);
- db->offset = ntohll(db->offset);
- db->length = ntohll(db->length);
- db->remote_rkey = ntohl(db->remote_rkey);
-}
-
-/*
- * Virtual address of the above structures used for transmitting
- * the RAMBlock descriptions at connection-time.
- * This structure is *not* transmitted.
- */
-typedef struct RDMALocalBlocks {
- int nb_blocks;
- bool init; /* main memory init complete */
- RDMALocalBlock *block;
-} RDMALocalBlocks;
-
-/*
- * Main data structure for RDMA state.
- * While there is only one copy of this structure being allocated right now,
- * this is the place where one would start if you wanted to consider
- * having more than one RDMA connection open at the same time.
- */
-typedef struct RDMAContext {
- char *host;
- int port;
-
- RDMAWorkRequestData wr_data[RDMA_WRID_MAX];
-
- /*
- * This is used by *_exchange_send() to figure out whether or not
- * the initial "READY" message has already been received or not.
- * This is because other functions may potentially poll() and detect
- * the READY message before send() does, in which case we need to
- * know if it completed.
- */
- int control_ready_expected;
-
- /* number of outstanding writes */
- int nb_sent;
-
- /* store info about current buffer so that we can
- merge it with future sends */
- uint64_t current_addr;
- uint64_t current_length;
- /* index of ram block the current buffer belongs to */
- int current_index;
- /* index of the chunk in the current ram block */
- int current_chunk;
-
- bool pin_all;
-
- /*
- * infiniband-specific variables for opening the device
- * and maintaining connection state and so forth.
- *
- * cm_id also has ibv_context, rdma_event_channel, and ibv_qp in
- * cm_id->verbs, cm_id->channel, and cm_id->qp.
- */
- struct rdma_cm_id *cm_id; /* connection manager ID */
- struct rdma_cm_id *listen_id;
- bool connected;
-
- struct ibv_context *verbs;
- struct rdma_event_channel *channel;
- struct ibv_qp *qp; /* queue pair */
- struct ibv_comp_channel *recv_comp_channel; /* recv completion channel */
- struct ibv_comp_channel *send_comp_channel; /* send completion channel */
- struct ibv_pd *pd; /* protection domain */
- struct ibv_cq *recv_cq; /* recvieve completion queue */
- struct ibv_cq *send_cq; /* send completion queue */
-
- /*
- * If a previous write failed (perhaps because of a failed
- * memory registration, then do not attempt any future work
- * and remember the error state.
- */
- bool errored;
- bool error_reported;
- bool received_error;
-
- /*
- * Description of ram blocks used throughout the code.
- */
- RDMALocalBlocks local_ram_blocks;
- RDMADestBlock *dest_blocks;
-
- /* Index of the next RAMBlock received during block registration */
- unsigned int next_src_index;
-
- /*
- * Migration on *destination* started.
- * Then use coroutine yield function.
- * Source runs in a thread, so we don't care.
- */
- int migration_started_on_destination;
-
- int total_registrations;
- int total_writes;
-
- int unregister_current, unregister_next;
- uint64_t unregistrations[RDMA_SIGNALED_SEND_MAX];
-
- GHashTable *blockmap;
-
- /* the RDMAContext for return path */
- struct RDMAContext *return_path;
- bool is_return_path;
-} RDMAContext;
-
-#define TYPE_QIO_CHANNEL_RDMA "qio-channel-rdma"
-OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelRDMA, QIO_CHANNEL_RDMA)
-
-
-
-struct QIOChannelRDMA {
- QIOChannel parent;
- RDMAContext *rdmain;
- RDMAContext *rdmaout;
- QEMUFile *file;
- bool blocking; /* XXX we don't actually honour this yet */
-};
-
-/*
- * Main structure for IB Send/Recv control messages.
- * This gets prepended at the beginning of every Send/Recv.
- */
-typedef struct QEMU_PACKED {
- uint32_t len; /* Total length of data portion */
- uint32_t type; /* which control command to perform */
- uint32_t repeat; /* number of commands in data portion of same type */
- uint32_t padding;
-} RDMAControlHeader;
-
-static void control_to_network(RDMAControlHeader *control)
-{
- control->type = htonl(control->type);
- control->len = htonl(control->len);
- control->repeat = htonl(control->repeat);
-}
-
-static void network_to_control(RDMAControlHeader *control)
-{
- control->type = ntohl(control->type);
- control->len = ntohl(control->len);
- control->repeat = ntohl(control->repeat);
-}
-
-/*
- * Register a single Chunk.
- * Information sent by the source VM to inform the dest
- * to register an single chunk of memory before we can perform
- * the actual RDMA operation.
- */
-typedef struct QEMU_PACKED {
- union QEMU_PACKED {
- uint64_t current_addr; /* offset into the ram_addr_t space */
- uint64_t chunk; /* chunk to lookup if unregistering */
- } key;
- uint32_t current_index; /* which ramblock the chunk belongs to */
- uint32_t padding;
- uint64_t chunks; /* how many sequential chunks to register */
-} RDMARegister;
-
-static bool rdma_errored(RDMAContext *rdma)
-{
- if (rdma->errored && !rdma->error_reported) {
- error_report("RDMA is in an error state waiting migration"
- " to abort!");
- rdma->error_reported = true;
- }
- return rdma->errored;
-}
-
-static void register_to_network(RDMAContext *rdma, RDMARegister *reg)
-{
- RDMALocalBlock *local_block;
- local_block = &rdma->local_ram_blocks.block[reg->current_index];
-
- if (local_block->is_ram_block) {
- /*
- * current_addr as passed in is an address in the local ram_addr_t
- * space, we need to translate this for the destination
- */
- reg->key.current_addr -= local_block->offset;
- reg->key.current_addr += rdma->dest_blocks[reg->current_index].offset;
- }
- reg->key.current_addr = htonll(reg->key.current_addr);
- reg->current_index = htonl(reg->current_index);
- reg->chunks = htonll(reg->chunks);
-}
-
-static void network_to_register(RDMARegister *reg)
-{
- reg->key.current_addr = ntohll(reg->key.current_addr);
- reg->current_index = ntohl(reg->current_index);
- reg->chunks = ntohll(reg->chunks);
-}
-
-typedef struct QEMU_PACKED {
- uint32_t value; /* if zero, we will madvise() */
- uint32_t block_idx; /* which ram block index */
- uint64_t offset; /* Address in remote ram_addr_t space */
- uint64_t length; /* length of the chunk */
-} RDMACompress;
-
-static void compress_to_network(RDMAContext *rdma, RDMACompress *comp)
-{
- comp->value = htonl(comp->value);
- /*
- * comp->offset as passed in is an address in the local ram_addr_t
- * space, we need to translate this for the destination
- */
- comp->offset -= rdma->local_ram_blocks.block[comp->block_idx].offset;
- comp->offset += rdma->dest_blocks[comp->block_idx].offset;
- comp->block_idx = htonl(comp->block_idx);
- comp->offset = htonll(comp->offset);
- comp->length = htonll(comp->length);
-}
-
-static void network_to_compress(RDMACompress *comp)
-{
- comp->value = ntohl(comp->value);
- comp->block_idx = ntohl(comp->block_idx);
- comp->offset = ntohll(comp->offset);
- comp->length = ntohll(comp->length);
-}
-
-/*
- * The result of the dest's memory registration produces an "rkey"
- * which the source VM must reference in order to perform
- * the RDMA operation.
- */
-typedef struct QEMU_PACKED {
- uint32_t rkey;
- uint32_t padding;
- uint64_t host_addr;
-} RDMARegisterResult;
-
-static void result_to_network(RDMARegisterResult *result)
-{
- result->rkey = htonl(result->rkey);
- result->host_addr = htonll(result->host_addr);
-};
-
-static void network_to_result(RDMARegisterResult *result)
-{
- result->rkey = ntohl(result->rkey);
- result->host_addr = ntohll(result->host_addr);
-};
-
-static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head,
- uint8_t *data, RDMAControlHeader *resp,
- int *resp_idx,
- int (*callback)(RDMAContext *rdma,
- Error **errp),
- Error **errp);
-
-static inline uint64_t ram_chunk_index(const uint8_t *start,
- const uint8_t *host)
-{
- return ((uintptr_t) host - (uintptr_t) start) >> RDMA_REG_CHUNK_SHIFT;
-}
-
-static inline uint8_t *ram_chunk_start(const RDMALocalBlock *rdma_ram_block,
- uint64_t i)
-{
- return (uint8_t *)(uintptr_t)(rdma_ram_block->local_host_addr +
- (i << RDMA_REG_CHUNK_SHIFT));
-}
-
-static inline uint8_t *ram_chunk_end(const RDMALocalBlock *rdma_ram_block,
- uint64_t i)
-{
- uint8_t *result = ram_chunk_start(rdma_ram_block, i) +
- (1UL << RDMA_REG_CHUNK_SHIFT);
-
- if (result > (rdma_ram_block->local_host_addr + rdma_ram_block->length)) {
- result = rdma_ram_block->local_host_addr + rdma_ram_block->length;
- }
-
- return result;
-}
-
-static void rdma_add_block(RDMAContext *rdma, const char *block_name,
- void *host_addr,
- ram_addr_t block_offset, uint64_t length)
-{
- RDMALocalBlocks *local = &rdma->local_ram_blocks;
- RDMALocalBlock *block;
- RDMALocalBlock *old = local->block;
-
- local->block = g_new0(RDMALocalBlock, local->nb_blocks + 1);
-
- if (local->nb_blocks) {
- if (rdma->blockmap) {
- for (int x = 0; x < local->nb_blocks; x++) {
- g_hash_table_remove(rdma->blockmap,
- (void *)(uintptr_t)old[x].offset);
- g_hash_table_insert(rdma->blockmap,
- (void *)(uintptr_t)old[x].offset,
- &local->block[x]);
- }
- }
- memcpy(local->block, old, sizeof(RDMALocalBlock) * local->nb_blocks);
- g_free(old);
- }
-
- block = &local->block[local->nb_blocks];
-
- block->block_name = g_strdup(block_name);
- block->local_host_addr = host_addr;
- block->offset = block_offset;
- block->length = length;
- block->index = local->nb_blocks;
- block->src_index = ~0U; /* Filled in by the receipt of the block list */
- block->nb_chunks = ram_chunk_index(host_addr, host_addr + length) + 1UL;
- block->transit_bitmap = bitmap_new(block->nb_chunks);
- bitmap_clear(block->transit_bitmap, 0, block->nb_chunks);
- block->unregister_bitmap = bitmap_new(block->nb_chunks);
- bitmap_clear(block->unregister_bitmap, 0, block->nb_chunks);
- block->remote_keys = g_new0(uint32_t, block->nb_chunks);
-
- block->is_ram_block = local->init ? false : true;
-
- if (rdma->blockmap) {
- g_hash_table_insert(rdma->blockmap, (void *)(uintptr_t)block_offset,
block);
- }
-
- trace_rdma_add_block(block_name, local->nb_blocks,
- (uintptr_t) block->local_host_addr,
- block->offset, block->length,
- (uintptr_t) (block->local_host_addr + block->length),
- BITS_TO_LONGS(block->nb_chunks) *
- sizeof(unsigned long) * 8,
- block->nb_chunks);
-
- local->nb_blocks++;
-}
-
-/*
- * Memory regions need to be registered with the device and queue pairs setup
- * in advanced before the migration starts. This tells us where the RAM blocks
- * are so that we can register them individually.
- */
-static int qemu_rdma_init_one_block(RAMBlock *rb, void *opaque)
-{
- const char *block_name = qemu_ram_get_idstr(rb);
- void *host_addr = qemu_ram_get_host_addr(rb);
- ram_addr_t block_offset = qemu_ram_get_offset(rb);
- ram_addr_t length = qemu_ram_get_used_length(rb);
- rdma_add_block(opaque, block_name, host_addr, block_offset, length);
- return 0;
-}
-
-/*
- * Identify the RAMBlocks and their quantity. They will be references to
- * identify chunk boundaries inside each RAMBlock and also be referenced
- * during dynamic page registration.
- */
-static void qemu_rdma_init_ram_blocks(RDMAContext *rdma)
-{
- RDMALocalBlocks *local = &rdma->local_ram_blocks;
- int ret;
-
- assert(rdma->blockmap == NULL);
- memset(local, 0, sizeof *local);
- ret = foreach_not_ignored_block(qemu_rdma_init_one_block, rdma);
- assert(!ret);
- trace_qemu_rdma_init_ram_blocks(local->nb_blocks);
- rdma->dest_blocks = g_new0(RDMADestBlock,
- rdma->local_ram_blocks.nb_blocks);
- local->init = true;
-}
-
-/*
- * Note: If used outside of cleanup, the caller must ensure that the
destination
- * block structures are also updated
- */
-static void rdma_delete_block(RDMAContext *rdma, RDMALocalBlock *block)
-{
- RDMALocalBlocks *local = &rdma->local_ram_blocks;
- RDMALocalBlock *old = local->block;
-
- if (rdma->blockmap) {
- g_hash_table_remove(rdma->blockmap, (void *)(uintptr_t)block->offset);
- }
- if (block->pmr) {
- for (int j = 0; j < block->nb_chunks; j++) {
- if (!block->pmr[j]) {
- continue;
- }
- ibv_dereg_mr(block->pmr[j]);
- rdma->total_registrations--;
- }
- g_free(block->pmr);
- block->pmr = NULL;
- }
-
- if (block->mr) {
- ibv_dereg_mr(block->mr);
- rdma->total_registrations--;
- block->mr = NULL;
- }
-
- g_free(block->transit_bitmap);
- block->transit_bitmap = NULL;
-
- g_free(block->unregister_bitmap);
- block->unregister_bitmap = NULL;
-
- g_free(block->remote_keys);
- block->remote_keys = NULL;
-
- g_free(block->block_name);
- block->block_name = NULL;
-
- if (rdma->blockmap) {
- for (int x = 0; x < local->nb_blocks; x++) {
- g_hash_table_remove(rdma->blockmap,
- (void *)(uintptr_t)old[x].offset);
- }
- }
-
- if (local->nb_blocks > 1) {
-
- local->block = g_new0(RDMALocalBlock, local->nb_blocks - 1);
-
- if (block->index) {
- memcpy(local->block, old, sizeof(RDMALocalBlock) * block->index);
- }
-
- if (block->index < (local->nb_blocks - 1)) {
- memcpy(local->block + block->index, old + (block->index + 1),
- sizeof(RDMALocalBlock) *
- (local->nb_blocks - (block->index + 1)));
- for (int x = block->index; x < local->nb_blocks - 1; x++) {
- local->block[x].index--;
- }
- }
- } else {
- assert(block == local->block);
- local->block = NULL;
- }
-
- trace_rdma_delete_block(block, (uintptr_t)block->local_host_addr,
- block->offset, block->length,
- (uintptr_t)(block->local_host_addr +
block->length),
- BITS_TO_LONGS(block->nb_chunks) *
- sizeof(unsigned long) * 8, block->nb_chunks);
-
- g_free(old);
-
- local->nb_blocks--;
-
- if (local->nb_blocks && rdma->blockmap) {
- for (int x = 0; x < local->nb_blocks; x++) {
- g_hash_table_insert(rdma->blockmap,
- (void *)(uintptr_t)local->block[x].offset,
- &local->block[x]);
- }
- }
-}
-
-/*
- * Trace RDMA device open, with device details.
- */
-static void qemu_rdma_dump_id(const char *who, struct ibv_context *verbs)
-{
- struct ibv_port_attr port;
-
- if (ibv_query_port(verbs, 1, &port)) {
- trace_qemu_rdma_dump_id_failed(who);
- return;
- }
-
- trace_qemu_rdma_dump_id(who,
- verbs->device->name,
- verbs->device->dev_name,
- verbs->device->dev_path,
- verbs->device->ibdev_path,
- port.link_layer,
- port.link_layer == IBV_LINK_LAYER_INFINIBAND ? "Infiniband"
- : port.link_layer == IBV_LINK_LAYER_ETHERNET ? "Ethernet"
- : "Unknown");
-}
-
-/*
- * Trace RDMA gid addressing information.
- * Useful for understanding the RDMA device hierarchy in the kernel.
- */
-static void qemu_rdma_dump_gid(const char *who, struct rdma_cm_id *id)
-{
- char sgid[33];
- char dgid[33];
- inet_ntop(AF_INET6, &id->route.addr.addr.ibaddr.sgid, sgid, sizeof sgid);
- inet_ntop(AF_INET6, &id->route.addr.addr.ibaddr.dgid, dgid, sizeof dgid);
- trace_qemu_rdma_dump_gid(who, sgid, dgid);
-}
-
-/*
- * As of now, IPv6 over RoCE / iWARP is not supported by linux.
- * We will try the next addrinfo struct, and fail if there are
- * no other valid addresses to bind against.
- *
- * If user is listening on '[::]', then we will not have a opened a device
- * yet and have no way of verifying if the device is RoCE or not.
- *
- * In this case, the source VM will throw an error for ALL types of
- * connections (both IPv4 and IPv6) if the destination machine does not have
- * a regular infiniband network available for use.
- *
- * The only way to guarantee that an error is thrown for broken kernels is
- * for the management software to choose a *specific* interface at bind time
- * and validate what time of hardware it is.
- *
- * Unfortunately, this puts the user in a fix:
- *
- * If the source VM connects with an IPv4 address without knowing that the
- * destination has bound to '[::]' the migration will unconditionally fail
- * unless the management software is explicitly listening on the IPv4
- * address while using a RoCE-based device.
- *
- * If the source VM connects with an IPv6 address, then we're OK because we
can
- * throw an error on the source (and similarly on the destination).
- *
- * But in mixed environments, this will be broken for a while until it is
fixed
- * inside linux.
- *
- * We do provide a *tiny* bit of help in this function: We can list all of the
- * devices in the system and check to see if all the devices are RoCE or
- * Infiniband.
- *
- * If we detect that we have a *pure* RoCE environment, then we can safely
- * thrown an error even if the management software has specified '[::]' as the
- * bind address.
- *
- * However, if there is are multiple hetergeneous devices, then we cannot make
- * this assumption and the user just has to be sure they know what they are
- * doing.
- *
- * Patches are being reviewed on linux-rdma.
- */
-static int qemu_rdma_broken_ipv6_kernel(struct ibv_context *verbs, Error
**errp)
-{
- /* This bug only exists in linux, to our knowledge. */
-#ifdef CONFIG_LINUX
- struct ibv_port_attr port_attr;
-
- /*
- * Verbs are only NULL if management has bound to '[::]'.
- *
- * Let's iterate through all the devices and see if there any pure IB
- * devices (non-ethernet).
- *
- * If not, then we can safely proceed with the migration.
- * Otherwise, there are no guarantees until the bug is fixed in linux.
- */
- if (!verbs) {
- int num_devices;
- struct ibv_device **dev_list = ibv_get_device_list(&num_devices);
- bool roce_found = false;
- bool ib_found = false;
-
- for (int x = 0; x < num_devices; x++) {
- verbs = ibv_open_device(dev_list[x]);
- /*
- * ibv_open_device() is not documented to set errno. If
- * it does, it's somebody else's doc bug. If it doesn't,
- * the use of errno below is wrong.
- * TODO Find out whether ibv_open_device() sets errno.
- */
- if (!verbs) {
- if (errno == EPERM) {
- continue;
- } else {
- error_setg_errno(errp, errno,
- "could not open RDMA device context");
- return -1;
- }
- }
-
- if (ibv_query_port(verbs, 1, &port_attr)) {
- ibv_close_device(verbs);
- error_setg(errp,
- "RDMA ERROR: Could not query initial IB port");
- return -1;
- }
-
- if (port_attr.link_layer == IBV_LINK_LAYER_INFINIBAND) {
- ib_found = true;
- } else if (port_attr.link_layer == IBV_LINK_LAYER_ETHERNET) {
- roce_found = true;
- }
-
- ibv_close_device(verbs);
-
- }
-
- if (roce_found) {
- if (ib_found) {
- warn_report("migrations may fail:"
- " IPv6 over RoCE / iWARP in linux"
- " is broken. But since you appear to have a"
- " mixed RoCE / IB environment, be sure to only"
- " migrate over the IB fabric until the kernel "
- " fixes the bug.");
- } else {
- error_setg(errp, "RDMA ERROR: "
- "You only have RoCE / iWARP devices in your systems"
- " and your management software has specified '[::]'"
- ", but IPv6 over RoCE / iWARP is not supported in
Linux.");
- return -1;
- }
- }
-
- return 0;
- }
-
- /*
- * If we have a verbs context, that means that some other than '[::]' was
- * used by the management software for binding. In which case we can
- * actually warn the user about a potentially broken kernel.
- */
-
- /* IB ports start with 1, not 0 */
- if (ibv_query_port(verbs, 1, &port_attr)) {
- error_setg(errp, "RDMA ERROR: Could not query initial IB port");
- return -1;
- }
-
- if (port_attr.link_layer == IBV_LINK_LAYER_ETHERNET) {
- error_setg(errp, "RDMA ERROR: "
- "Linux kernel's RoCE / iWARP does not support IPv6 "
- "(but patches on linux-rdma in progress)");
- return -1;
- }
-
-#endif
-
- return 0;
-}
-
-/*
- * Figure out which RDMA device corresponds to the requested IP hostname
- * Also create the initial connection manager identifiers for opening
- * the connection.
- */
-static int qemu_rdma_resolve_host(RDMAContext *rdma, Error **errp)
-{
- Error *err = NULL;
- int ret;
- struct rdma_addrinfo *res;
- char port_str[16];
- struct rdma_cm_event *cm_event;
- char ip[40] = "unknown";
-
- if (rdma->host == NULL || !strcmp(rdma->host, "")) {
- error_setg(errp, "RDMA ERROR: RDMA hostname has not been set");
- return -1;
- }
-
- /* create CM channel */
- rdma->channel = rdma_create_event_channel();
- if (!rdma->channel) {
- error_setg(errp, "RDMA ERROR: could not create CM channel");
- return -1;
- }
-
- /* create CM id */
- ret = rdma_create_id(rdma->channel, &rdma->cm_id, NULL, RDMA_PS_TCP);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: could not create channel id");
- goto err_resolve_create_id;
- }
-
- snprintf(port_str, 16, "%d", rdma->port);
- port_str[15] = '\0';
-
- ret = rdma_getaddrinfo(rdma->host, port_str, NULL, &res);
- if (ret) {
- error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address %s",
- rdma->host);
- goto err_resolve_get_addr;
- }
-
- /* Try all addresses, saving the first error in @err */
- for (struct rdma_addrinfo *e = res; e != NULL; e = e->ai_next) {
- Error **local_errp = err ? NULL : &err;
-
- inet_ntop(e->ai_family,
- &((struct sockaddr_in *) e->ai_dst_addr)->sin_addr, ip, sizeof ip);
- trace_qemu_rdma_resolve_host_trying(rdma->host, ip);
-
- ret = rdma_resolve_addr(rdma->cm_id, NULL, e->ai_dst_addr,
- RDMA_RESOLVE_TIMEOUT_MS);
- if (ret >= 0) {
- if (e->ai_family == AF_INET6) {
- ret = qemu_rdma_broken_ipv6_kernel(rdma->cm_id->verbs,
- local_errp);
- if (ret < 0) {
- continue;
- }
- }
- error_free(err);
- goto route;
- }
- }
-
- rdma_freeaddrinfo(res);
- if (err) {
- error_propagate(errp, err);
- } else {
- error_setg(errp, "RDMA ERROR: could not resolve address %s",
- rdma->host);
- }
- goto err_resolve_get_addr;
-
-route:
- rdma_freeaddrinfo(res);
- qemu_rdma_dump_gid("source_resolve_addr", rdma->cm_id);
-
- ret = rdma_get_cm_event(rdma->channel, &cm_event);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: could not perform event_addr_resolved");
- goto err_resolve_get_addr;
- }
-
- if (cm_event->event != RDMA_CM_EVENT_ADDR_RESOLVED) {
- error_setg(errp,
- "RDMA ERROR: result not equal to event_addr_resolved %s",
- rdma_event_str(cm_event->event));
- rdma_ack_cm_event(cm_event);
- goto err_resolve_get_addr;
- }
- rdma_ack_cm_event(cm_event);
-
- /* resolve route */
- ret = rdma_resolve_route(rdma->cm_id, RDMA_RESOLVE_TIMEOUT_MS);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: could not resolve rdma route");
- goto err_resolve_get_addr;
- }
-
- ret = rdma_get_cm_event(rdma->channel, &cm_event);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: could not perform event_route_resolved");
- goto err_resolve_get_addr;
- }
- if (cm_event->event != RDMA_CM_EVENT_ROUTE_RESOLVED) {
- error_setg(errp, "RDMA ERROR: "
- "result not equal to event_route_resolved: %s",
- rdma_event_str(cm_event->event));
- rdma_ack_cm_event(cm_event);
- goto err_resolve_get_addr;
- }
- rdma_ack_cm_event(cm_event);
- rdma->verbs = rdma->cm_id->verbs;
- qemu_rdma_dump_id("source_resolve_host", rdma->cm_id->verbs);
- qemu_rdma_dump_gid("source_resolve_host", rdma->cm_id);
- return 0;
-
-err_resolve_get_addr:
- rdma_destroy_id(rdma->cm_id);
- rdma->cm_id = NULL;
-err_resolve_create_id:
- rdma_destroy_event_channel(rdma->channel);
- rdma->channel = NULL;
- return -1;
-}
-
-/*
- * Create protection domain and completion queues
- */
-static int qemu_rdma_alloc_pd_cq(RDMAContext *rdma, Error **errp)
-{
- /* allocate pd */
- rdma->pd = ibv_alloc_pd(rdma->verbs);
- if (!rdma->pd) {
- error_setg(errp, "failed to allocate protection domain");
- return -1;
- }
-
- /* create receive completion channel */
- rdma->recv_comp_channel = ibv_create_comp_channel(rdma->verbs);
- if (!rdma->recv_comp_channel) {
- error_setg(errp, "failed to allocate receive completion channel");
- goto err_alloc_pd_cq;
- }
-
- /*
- * Completion queue can be filled by read work requests.
- */
- rdma->recv_cq = ibv_create_cq(rdma->verbs, (RDMA_SIGNALED_SEND_MAX * 3),
- NULL, rdma->recv_comp_channel, 0);
- if (!rdma->recv_cq) {
- error_setg(errp, "failed to allocate receive completion queue");
- goto err_alloc_pd_cq;
- }
-
- /* create send completion channel */
- rdma->send_comp_channel = ibv_create_comp_channel(rdma->verbs);
- if (!rdma->send_comp_channel) {
- error_setg(errp, "failed to allocate send completion channel");
- goto err_alloc_pd_cq;
- }
-
- rdma->send_cq = ibv_create_cq(rdma->verbs, (RDMA_SIGNALED_SEND_MAX * 3),
- NULL, rdma->send_comp_channel, 0);
- if (!rdma->send_cq) {
- error_setg(errp, "failed to allocate send completion queue");
- goto err_alloc_pd_cq;
- }
-
- return 0;
-
-err_alloc_pd_cq:
- if (rdma->pd) {
- ibv_dealloc_pd(rdma->pd);
- }
- if (rdma->recv_comp_channel) {
- ibv_destroy_comp_channel(rdma->recv_comp_channel);
- }
- if (rdma->send_comp_channel) {
- ibv_destroy_comp_channel(rdma->send_comp_channel);
- }
- if (rdma->recv_cq) {
- ibv_destroy_cq(rdma->recv_cq);
- rdma->recv_cq = NULL;
- }
- rdma->pd = NULL;
- rdma->recv_comp_channel = NULL;
- rdma->send_comp_channel = NULL;
- return -1;
-
-}
-
-/*
- * Create queue pairs.
- */
-static int qemu_rdma_alloc_qp(RDMAContext *rdma)
-{
- struct ibv_qp_init_attr attr = { 0 };
-
- attr.cap.max_send_wr = RDMA_SIGNALED_SEND_MAX;
- attr.cap.max_recv_wr = 3;
- attr.cap.max_send_sge = 1;
- attr.cap.max_recv_sge = 1;
- attr.send_cq = rdma->send_cq;
- attr.recv_cq = rdma->recv_cq;
- attr.qp_type = IBV_QPT_RC;
-
- if (rdma_create_qp(rdma->cm_id, rdma->pd, &attr) < 0) {
- return -1;
- }
-
- rdma->qp = rdma->cm_id->qp;
- return 0;
-}
-
-/* Check whether On-Demand Paging is supported by RDAM device */
-static bool rdma_support_odp(struct ibv_context *dev)
-{
- struct ibv_device_attr_ex attr = {0};
-
- if (ibv_query_device_ex(dev, NULL, &attr)) {
- return false;
- }
-
- if (attr.odp_caps.general_caps & IBV_ODP_SUPPORT) {
- return true;
- }
-
- return false;
-}
-
-/*
- * ibv_advise_mr to avoid RNR NAK error as far as possible.
- * The responder mr registering with ODP will sent RNR NAK back to
- * the requester in the face of the page fault.
- */
-static void qemu_rdma_advise_prefetch_mr(struct ibv_pd *pd, uint64_t addr,
- uint32_t len, uint32_t lkey,
- const char *name, bool wr)
-{
-#ifdef HAVE_IBV_ADVISE_MR
- int ret;
- int advice = wr ? IBV_ADVISE_MR_ADVICE_PREFETCH_WRITE :
- IBV_ADVISE_MR_ADVICE_PREFETCH;
- struct ibv_sge sg_list = {.lkey = lkey, .addr = addr, .length = len};
-
- ret = ibv_advise_mr(pd, advice,
- IBV_ADVISE_MR_FLAG_FLUSH, &sg_list, 1);
- /* ignore the error */
- trace_qemu_rdma_advise_mr(name, len, addr, strerror(ret));
-#endif
-}
-
-static int qemu_rdma_reg_whole_ram_blocks(RDMAContext *rdma, Error **errp)
-{
- int i;
- RDMALocalBlocks *local = &rdma->local_ram_blocks;
-
- for (i = 0; i < local->nb_blocks; i++) {
- int access = IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE;
-
- local->block[i].mr =
- ibv_reg_mr(rdma->pd,
- local->block[i].local_host_addr,
- local->block[i].length, access
- );
- /*
- * ibv_reg_mr() is not documented to set errno. If it does,
- * it's somebody else's doc bug. If it doesn't, the use of
- * errno below is wrong.
- * TODO Find out whether ibv_reg_mr() sets errno.
- */
- if (!local->block[i].mr &&
- errno == ENOTSUP && rdma_support_odp(rdma->verbs)) {
- access |= IBV_ACCESS_ON_DEMAND;
- /* register ODP mr */
- local->block[i].mr =
- ibv_reg_mr(rdma->pd,
- local->block[i].local_host_addr,
- local->block[i].length, access);
- trace_qemu_rdma_register_odp_mr(local->block[i].block_name);
-
- if (local->block[i].mr) {
- qemu_rdma_advise_prefetch_mr(rdma->pd,
- (uintptr_t)local->block[i].local_host_addr,
- local->block[i].length,
- local->block[i].mr->lkey,
- local->block[i].block_name,
- true);
- }
- }
-
- if (!local->block[i].mr) {
- error_setg_errno(errp, errno,
- "Failed to register local dest ram block!");
- goto err;
- }
- rdma->total_registrations++;
- }
-
- return 0;
-
-err:
- for (i--; i >= 0; i--) {
- ibv_dereg_mr(local->block[i].mr);
- local->block[i].mr = NULL;
- rdma->total_registrations--;
- }
-
- return -1;
-
-}
-
-/*
- * Find the ram block that corresponds to the page requested to be
- * transmitted by QEMU.
- *
- * Once the block is found, also identify which 'chunk' within that
- * block that the page belongs to.
- */
-static void qemu_rdma_search_ram_block(RDMAContext *rdma,
- uintptr_t block_offset,
- uint64_t offset,
- uint64_t length,
- uint64_t *block_index,
- uint64_t *chunk_index)
-{
- uint64_t current_addr = block_offset + offset;
- RDMALocalBlock *block = g_hash_table_lookup(rdma->blockmap,
- (void *) block_offset);
- assert(block);
- assert(current_addr >= block->offset);
- assert((current_addr + length) <= (block->offset + block->length));
-
- *block_index = block->index;
- *chunk_index = ram_chunk_index(block->local_host_addr,
- block->local_host_addr + (current_addr - block->offset));
-}
-
-/*
- * Register a chunk with IB. If the chunk was already registered
- * previously, then skip.
- *
- * Also return the keys associated with the registration needed
- * to perform the actual RDMA operation.
- */
-static int qemu_rdma_register_and_get_keys(RDMAContext *rdma,
- RDMALocalBlock *block, uintptr_t host_addr,
- uint32_t *lkey, uint32_t *rkey, int chunk,
- uint8_t *chunk_start, uint8_t *chunk_end)
-{
- if (block->mr) {
- if (lkey) {
- *lkey = block->mr->lkey;
- }
- if (rkey) {
- *rkey = block->mr->rkey;
- }
- return 0;
- }
-
- /* allocate memory to store chunk MRs */
- if (!block->pmr) {
- block->pmr = g_new0(struct ibv_mr *, block->nb_chunks);
- }
-
- /*
- * If 'rkey', then we're the destination, so grant access to the source.
- *
- * If 'lkey', then we're the source VM, so grant access only to ourselves.
- */
- if (!block->pmr[chunk]) {
- uint64_t len = chunk_end - chunk_start;
- int access = rkey ? IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE :
- 0;
-
- trace_qemu_rdma_register_and_get_keys(len, chunk_start);
-
- block->pmr[chunk] = ibv_reg_mr(rdma->pd, chunk_start, len, access);
- /*
- * ibv_reg_mr() is not documented to set errno. If it does,
- * it's somebody else's doc bug. If it doesn't, the use of
- * errno below is wrong.
- * TODO Find out whether ibv_reg_mr() sets errno.
- */
- if (!block->pmr[chunk] &&
- errno == ENOTSUP && rdma_support_odp(rdma->verbs)) {
- access |= IBV_ACCESS_ON_DEMAND;
- /* register ODP mr */
- block->pmr[chunk] = ibv_reg_mr(rdma->pd, chunk_start, len, access);
- trace_qemu_rdma_register_odp_mr(block->block_name);
-
- if (block->pmr[chunk]) {
- qemu_rdma_advise_prefetch_mr(rdma->pd, (uintptr_t)chunk_start,
- len, block->pmr[chunk]->lkey,
- block->block_name, rkey);
-
- }
- }
- }
- if (!block->pmr[chunk]) {
- return -1;
- }
- rdma->total_registrations++;
-
- if (lkey) {
- *lkey = block->pmr[chunk]->lkey;
- }
- if (rkey) {
- *rkey = block->pmr[chunk]->rkey;
- }
- return 0;
-}
-
-/*
- * Register (at connection time) the memory used for control
- * channel messages.
- */
-static int qemu_rdma_reg_control(RDMAContext *rdma, int idx)
-{
- rdma->wr_data[idx].control_mr = ibv_reg_mr(rdma->pd,
- rdma->wr_data[idx].control, RDMA_CONTROL_MAX_BUFFER,
- IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE);
- if (rdma->wr_data[idx].control_mr) {
- rdma->total_registrations++;
- return 0;
- }
- return -1;
-}
-
-/*
- * Perform a non-optimized memory unregistration after every transfer
- * for demonstration purposes, only if pin-all is not requested.
- *
- * Potential optimizations:
- * 1. Start a new thread to run this function continuously
- - for bit clearing
- - and for receipt of unregister messages
- * 2. Use an LRU.
- * 3. Use workload hints.
- */
-static int qemu_rdma_unregister_waiting(RDMAContext *rdma)
-{
- Error *err = NULL;
-
- while (rdma->unregistrations[rdma->unregister_current]) {
- int ret;
- uint64_t wr_id = rdma->unregistrations[rdma->unregister_current];
- uint64_t chunk =
- (wr_id & RDMA_WRID_CHUNK_MASK) >> RDMA_WRID_CHUNK_SHIFT;
- uint64_t index =
- (wr_id & RDMA_WRID_BLOCK_MASK) >> RDMA_WRID_BLOCK_SHIFT;
- RDMALocalBlock *block =
- &(rdma->local_ram_blocks.block[index]);
- RDMARegister reg = { .current_index = index };
- RDMAControlHeader resp = { .type = RDMA_CONTROL_UNREGISTER_FINISHED,
- };
- RDMAControlHeader head = { .len = sizeof(RDMARegister),
- .type = RDMA_CONTROL_UNREGISTER_REQUEST,
- .repeat = 1,
- };
-
- trace_qemu_rdma_unregister_waiting_proc(chunk,
- rdma->unregister_current);
-
- rdma->unregistrations[rdma->unregister_current] = 0;
- rdma->unregister_current++;
-
- if (rdma->unregister_current == RDMA_SIGNALED_SEND_MAX) {
- rdma->unregister_current = 0;
- }
-
-
- /*
- * Unregistration is speculative (because migration is single-threaded
- * and we cannot break the protocol's inifinband message ordering).
- * Thus, if the memory is currently being used for transmission,
- * then abort the attempt to unregister and try again
- * later the next time a completion is received for this memory.
- */
- clear_bit(chunk, block->unregister_bitmap);
-
- if (test_bit(chunk, block->transit_bitmap)) {
- trace_qemu_rdma_unregister_waiting_inflight(chunk);
- continue;
- }
-
- trace_qemu_rdma_unregister_waiting_send(chunk);
-
- ret = ibv_dereg_mr(block->pmr[chunk]);
- block->pmr[chunk] = NULL;
- block->remote_keys[chunk] = 0;
-
- if (ret != 0) {
- error_report("unregistration chunk failed: %s",
- strerror(ret));
- return -1;
- }
- rdma->total_registrations--;
-
- reg.key.chunk = chunk;
- register_to_network(rdma, ®);
- ret = qemu_rdma_exchange_send(rdma, &head, (uint8_t *) ®,
- &resp, NULL, NULL, &err);
- if (ret < 0) {
- error_report_err(err);
- return -1;
- }
-
- trace_qemu_rdma_unregister_waiting_complete(chunk);
- }
-
- return 0;
-}
-
-static uint64_t qemu_rdma_make_wrid(uint64_t wr_id, uint64_t index,
- uint64_t chunk)
-{
- uint64_t result = wr_id & RDMA_WRID_TYPE_MASK;
-
- result |= (index << RDMA_WRID_BLOCK_SHIFT);
- result |= (chunk << RDMA_WRID_CHUNK_SHIFT);
-
- return result;
-}
-
-/*
- * Consult the connection manager to see a work request
- * (of any kind) has completed.
- * Return the work request ID that completed.
- */
-static int qemu_rdma_poll(RDMAContext *rdma, struct ibv_cq *cq,
- uint64_t *wr_id_out, uint32_t *byte_len)
-{
- int ret;
- struct ibv_wc wc;
- uint64_t wr_id;
-
- ret = ibv_poll_cq(cq, 1, &wc);
-
- if (!ret) {
- *wr_id_out = RDMA_WRID_NONE;
- return 0;
- }
-
- if (ret < 0) {
- return -1;
- }
-
- wr_id = wc.wr_id & RDMA_WRID_TYPE_MASK;
-
- if (wc.status != IBV_WC_SUCCESS) {
- return -1;
- }
-
- if (rdma->control_ready_expected &&
- (wr_id >= RDMA_WRID_RECV_CONTROL)) {
- trace_qemu_rdma_poll_recv(wr_id - RDMA_WRID_RECV_CONTROL, wr_id,
- rdma->nb_sent);
- rdma->control_ready_expected = 0;
- }
-
- if (wr_id == RDMA_WRID_RDMA_WRITE) {
- uint64_t chunk =
- (wc.wr_id & RDMA_WRID_CHUNK_MASK) >> RDMA_WRID_CHUNK_SHIFT;
- uint64_t index =
- (wc.wr_id & RDMA_WRID_BLOCK_MASK) >> RDMA_WRID_BLOCK_SHIFT;
- RDMALocalBlock *block = &(rdma->local_ram_blocks.block[index]);
-
- trace_qemu_rdma_poll_write(wr_id, rdma->nb_sent,
- index, chunk, block->local_host_addr,
- (void *)(uintptr_t)block->remote_host_addr);
-
- clear_bit(chunk, block->transit_bitmap);
-
- if (rdma->nb_sent > 0) {
- rdma->nb_sent--;
- }
- } else {
- trace_qemu_rdma_poll_other(wr_id, rdma->nb_sent);
- }
-
- *wr_id_out = wc.wr_id;
- if (byte_len) {
- *byte_len = wc.byte_len;
- }
-
- return 0;
-}
-
-/* Wait for activity on the completion channel.
- * Returns 0 on success, none-0 on error.
- */
-static int qemu_rdma_wait_comp_channel(RDMAContext *rdma,
- struct ibv_comp_channel *comp_channel)
-{
- struct rdma_cm_event *cm_event;
-
- /*
- * Coroutine doesn't start until migration_fd_process_incoming()
- * so don't yield unless we know we're running inside of a coroutine.
- */
- if (rdma->migration_started_on_destination &&
- migration_incoming_get_current()->state == MIGRATION_STATUS_ACTIVE) {
- yield_until_fd_readable(comp_channel->fd);
- } else {
- /* This is the source side, we're in a separate thread
- * or destination prior to migration_fd_process_incoming()
- * after postcopy, the destination also in a separate thread.
- * we can't yield; so we have to poll the fd.
- * But we need to be able to handle 'cancel' or an error
- * without hanging forever.
- */
- while (!rdma->errored && !rdma->received_error) {
- GPollFD pfds[2];
- pfds[0].fd = comp_channel->fd;
- pfds[0].events = G_IO_IN | G_IO_HUP | G_IO_ERR;
- pfds[0].revents = 0;
-
- pfds[1].fd = rdma->channel->fd;
- pfds[1].events = G_IO_IN | G_IO_HUP | G_IO_ERR;
- pfds[1].revents = 0;
-
- /* 0.1s timeout, should be fine for a 'cancel' */
- switch (qemu_poll_ns(pfds, 2, 100 * 1000 * 1000)) {
- case 2:
- case 1: /* fd active */
- if (pfds[0].revents) {
- return 0;
- }
-
- if (pfds[1].revents) {
- if (rdma_get_cm_event(rdma->channel, &cm_event) < 0) {
- return -1;
- }
-
- if (cm_event->event == RDMA_CM_EVENT_DISCONNECTED ||
- cm_event->event == RDMA_CM_EVENT_DEVICE_REMOVAL) {
- rdma_ack_cm_event(cm_event);
- return -1;
- }
- rdma_ack_cm_event(cm_event);
- }
- break;
-
- case 0: /* Timeout, go around again */
- break;
-
- default: /* Error of some type -
- * I don't trust errno from qemu_poll_ns
- */
- return -1;
- }
-
- if (migrate_get_current()->state == MIGRATION_STATUS_CANCELLING) {
- /* Bail out and let the cancellation happen */
- return -1;
- }
- }
- }
-
- if (rdma->received_error) {
- return -1;
- }
- return -rdma->errored;
-}
-
-static struct ibv_comp_channel *to_channel(RDMAContext *rdma, uint64_t wrid)
-{
- return wrid < RDMA_WRID_RECV_CONTROL ? rdma->send_comp_channel :
- rdma->recv_comp_channel;
-}
-
-static struct ibv_cq *to_cq(RDMAContext *rdma, uint64_t wrid)
-{
- return wrid < RDMA_WRID_RECV_CONTROL ? rdma->send_cq : rdma->recv_cq;
-}
-
-/*
- * Block until the next work request has completed.
- *
- * First poll to see if a work request has already completed,
- * otherwise block.
- *
- * If we encounter completed work requests for IDs other than
- * the one we're interested in, then that's generally an error.
- *
- * The only exception is actual RDMA Write completions. These
- * completions only need to be recorded, but do not actually
- * need further processing.
- */
-static int qemu_rdma_block_for_wrid(RDMAContext *rdma,
- uint64_t wrid_requested,
- uint32_t *byte_len)
-{
- int num_cq_events = 0, ret;
- struct ibv_cq *cq;
- void *cq_ctx;
- uint64_t wr_id = RDMA_WRID_NONE, wr_id_in;
- struct ibv_comp_channel *ch = to_channel(rdma, wrid_requested);
- struct ibv_cq *poll_cq = to_cq(rdma, wrid_requested);
-
- if (ibv_req_notify_cq(poll_cq, 0)) {
- return -1;
- }
- /* poll cq first */
- while (wr_id != wrid_requested) {
- ret = qemu_rdma_poll(rdma, poll_cq, &wr_id_in, byte_len);
- if (ret < 0) {
- return -1;
- }
-
- wr_id = wr_id_in & RDMA_WRID_TYPE_MASK;
-
- if (wr_id == RDMA_WRID_NONE) {
- break;
- }
- if (wr_id != wrid_requested) {
- trace_qemu_rdma_block_for_wrid_miss(wrid_requested, wr_id);
- }
- }
-
- if (wr_id == wrid_requested) {
- return 0;
- }
-
- while (1) {
- ret = qemu_rdma_wait_comp_channel(rdma, ch);
- if (ret < 0) {
- goto err_block_for_wrid;
- }
-
- ret = ibv_get_cq_event(ch, &cq, &cq_ctx);
- if (ret < 0) {
- goto err_block_for_wrid;
- }
-
- num_cq_events++;
-
- if (ibv_req_notify_cq(cq, 0)) {
- goto err_block_for_wrid;
- }
-
- while (wr_id != wrid_requested) {
- ret = qemu_rdma_poll(rdma, poll_cq, &wr_id_in, byte_len);
- if (ret < 0) {
- goto err_block_for_wrid;
- }
-
- wr_id = wr_id_in & RDMA_WRID_TYPE_MASK;
-
- if (wr_id == RDMA_WRID_NONE) {
- break;
- }
- if (wr_id != wrid_requested) {
- trace_qemu_rdma_block_for_wrid_miss(wrid_requested, wr_id);
- }
- }
-
- if (wr_id == wrid_requested) {
- goto success_block_for_wrid;
- }
- }
-
-success_block_for_wrid:
- if (num_cq_events) {
- ibv_ack_cq_events(cq, num_cq_events);
- }
- return 0;
-
-err_block_for_wrid:
- if (num_cq_events) {
- ibv_ack_cq_events(cq, num_cq_events);
- }
-
- rdma->errored = true;
- return -1;
-}
-
-/*
- * Post a SEND message work request for the control channel
- * containing some data and block until the post completes.
- */
-static int qemu_rdma_post_send_control(RDMAContext *rdma, uint8_t *buf,
- RDMAControlHeader *head,
- Error **errp)
-{
- int ret;
- RDMAWorkRequestData *wr = &rdma->wr_data[RDMA_WRID_CONTROL];
- struct ibv_send_wr *bad_wr;
- struct ibv_sge sge = {
- .addr = (uintptr_t)(wr->control),
- .length = head->len + sizeof(RDMAControlHeader),
- .lkey = wr->control_mr->lkey,
- };
- struct ibv_send_wr send_wr = {
- .wr_id = RDMA_WRID_SEND_CONTROL,
- .opcode = IBV_WR_SEND,
- .send_flags = IBV_SEND_SIGNALED,
- .sg_list = &sge,
- .num_sge = 1,
- };
-
- trace_qemu_rdma_post_send_control(control_desc(head->type));
-
- /*
- * We don't actually need to do a memcpy() in here if we used
- * the "sge" properly, but since we're only sending control messages
- * (not RAM in a performance-critical path), then its OK for now.
- *
- * The copy makes the RDMAControlHeader simpler to manipulate
- * for the time being.
- */
- assert(head->len <= RDMA_CONTROL_MAX_BUFFER - sizeof(*head));
- memcpy(wr->control, head, sizeof(RDMAControlHeader));
- control_to_network((void *) wr->control);
-
- if (buf) {
- memcpy(wr->control + sizeof(RDMAControlHeader), buf, head->len);
- }
-
-
- ret = ibv_post_send(rdma->qp, &send_wr, &bad_wr);
-
- if (ret > 0) {
- error_setg(errp, "Failed to use post IB SEND for control");
- return -1;
- }
-
- ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_SEND_CONTROL, NULL);
- if (ret < 0) {
- error_setg(errp, "rdma migration: send polling control error");
- return -1;
- }
-
- return 0;
-}
-
-/*
- * Post a RECV work request in anticipation of some future receipt
- * of data on the control channel.
- */
-static int qemu_rdma_post_recv_control(RDMAContext *rdma, int idx,
- Error **errp)
-{
- struct ibv_recv_wr *bad_wr;
- struct ibv_sge sge = {
- .addr = (uintptr_t)(rdma->wr_data[idx].control),
- .length = RDMA_CONTROL_MAX_BUFFER,
- .lkey = rdma->wr_data[idx].control_mr->lkey,
- };
-
- struct ibv_recv_wr recv_wr = {
- .wr_id = RDMA_WRID_RECV_CONTROL + idx,
- .sg_list = &sge,
- .num_sge = 1,
- };
-
-
- if (ibv_post_recv(rdma->qp, &recv_wr, &bad_wr)) {
- error_setg(errp, "error posting control recv");
- return -1;
- }
-
- return 0;
-}
-
-/*
- * Block and wait for a RECV control channel message to arrive.
- */
-static int qemu_rdma_exchange_get_response(RDMAContext *rdma,
- RDMAControlHeader *head, uint32_t expecting, int idx,
- Error **errp)
-{
- uint32_t byte_len;
- int ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_RECV_CONTROL + idx,
- &byte_len);
-
- if (ret < 0) {
- error_setg(errp, "rdma migration: recv polling control error!");
- return -1;
- }
-
- network_to_control((void *) rdma->wr_data[idx].control);
- memcpy(head, rdma->wr_data[idx].control, sizeof(RDMAControlHeader));
-
- trace_qemu_rdma_exchange_get_response_start(control_desc(expecting));
-
- if (expecting == RDMA_CONTROL_NONE) {
- trace_qemu_rdma_exchange_get_response_none(control_desc(head->type),
- head->type);
- } else if (head->type != expecting || head->type == RDMA_CONTROL_ERROR) {
- error_setg(errp, "Was expecting a %s (%d) control message"
- ", but got: %s (%d), length: %d",
- control_desc(expecting), expecting,
- control_desc(head->type), head->type, head->len);
- if (head->type == RDMA_CONTROL_ERROR) {
- rdma->received_error = true;
- }
- return -1;
- }
- if (head->len > RDMA_CONTROL_MAX_BUFFER - sizeof(*head)) {
- error_setg(errp, "too long length: %d", head->len);
- return -1;
- }
- if (sizeof(*head) + head->len != byte_len) {
- error_setg(errp, "Malformed length: %d byte_len %d",
- head->len, byte_len);
- return -1;
- }
-
- return 0;
-}
-
-/*
- * When a RECV work request has completed, the work request's
- * buffer is pointed at the header.
- *
- * This will advance the pointer to the data portion
- * of the control message of the work request's buffer that
- * was populated after the work request finished.
- */
-static void qemu_rdma_move_header(RDMAContext *rdma, int idx,
- RDMAControlHeader *head)
-{
- rdma->wr_data[idx].control_len = head->len;
- rdma->wr_data[idx].control_curr =
- rdma->wr_data[idx].control + sizeof(RDMAControlHeader);
-}
-
-/*
- * This is an 'atomic' high-level operation to deliver a single, unified
- * control-channel message.
- *
- * Additionally, if the user is expecting some kind of reply to this message,
- * they can request a 'resp' response message be filled in by posting an
- * additional work request on behalf of the user and waiting for an additional
- * completion.
- *
- * The extra (optional) response is used during registration to us from having
- * to perform an *additional* exchange of message just to provide a response by
- * instead piggy-backing on the acknowledgement.
- */
-static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head,
- uint8_t *data, RDMAControlHeader *resp,
- int *resp_idx,
- int (*callback)(RDMAContext *rdma,
- Error **errp),
- Error **errp)
-{
- int ret;
-
- /*
- * Wait until the dest is ready before attempting to deliver the message
- * by waiting for a READY message.
- */
- if (rdma->control_ready_expected) {
- RDMAControlHeader resp_ignored;
-
- ret = qemu_rdma_exchange_get_response(rdma, &resp_ignored,
- RDMA_CONTROL_READY,
- RDMA_WRID_READY, errp);
- if (ret < 0) {
- return -1;
- }
- }
-
- /*
- * If the user is expecting a response, post a WR in anticipation of it.
- */
- if (resp) {
- ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_DATA, errp);
- if (ret < 0) {
- return -1;
- }
- }
-
- /*
- * Post a WR to replace the one we just consumed for the READY message.
- */
- ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY, errp);
- if (ret < 0) {
- return -1;
- }
-
- /*
- * Deliver the control message that was requested.
- */
- ret = qemu_rdma_post_send_control(rdma, data, head, errp);
-
- if (ret < 0) {
- return -1;
- }
-
- /*
- * If we're expecting a response, block and wait for it.
- */
- if (resp) {
- if (callback) {
- trace_qemu_rdma_exchange_send_issue_callback();
- ret = callback(rdma, errp);
- if (ret < 0) {
- return -1;
- }
- }
-
- trace_qemu_rdma_exchange_send_waiting(control_desc(resp->type));
- ret = qemu_rdma_exchange_get_response(rdma, resp,
- resp->type, RDMA_WRID_DATA,
- errp);
-
- if (ret < 0) {
- return -1;
- }
-
- qemu_rdma_move_header(rdma, RDMA_WRID_DATA, resp);
- if (resp_idx) {
- *resp_idx = RDMA_WRID_DATA;
- }
- trace_qemu_rdma_exchange_send_received(control_desc(resp->type));
- }
-
- rdma->control_ready_expected = 1;
-
- return 0;
-}
-
-/*
- * This is an 'atomic' high-level operation to receive a single, unified
- * control-channel message.
- */
-static int qemu_rdma_exchange_recv(RDMAContext *rdma, RDMAControlHeader *head,
- uint32_t expecting, Error **errp)
-{
- RDMAControlHeader ready = {
- .len = 0,
- .type = RDMA_CONTROL_READY,
- .repeat = 1,
- };
- int ret;
-
- /*
- * Inform the source that we're ready to receive a message.
- */
- ret = qemu_rdma_post_send_control(rdma, NULL, &ready, errp);
-
- if (ret < 0) {
- return -1;
- }
-
- /*
- * Block and wait for the message.
- */
- ret = qemu_rdma_exchange_get_response(rdma, head,
- expecting, RDMA_WRID_READY, errp);
-
- if (ret < 0) {
- return -1;
- }
-
- qemu_rdma_move_header(rdma, RDMA_WRID_READY, head);
-
- /*
- * Post a new RECV work request to replace the one we just consumed.
- */
- ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY, errp);
- if (ret < 0) {
- return -1;
- }
-
- return 0;
-}
-
-/*
- * Write an actual chunk of memory using RDMA.
- *
- * If we're using dynamic registration on the dest-side, we have to
- * send a registration command first.
- */
-static int qemu_rdma_write_one(RDMAContext *rdma,
- int current_index, uint64_t current_addr,
- uint64_t length, Error **errp)
-{
- struct ibv_sge sge;
- struct ibv_send_wr send_wr = { 0 };
- struct ibv_send_wr *bad_wr;
- int reg_result_idx, ret, count = 0;
- uint64_t chunk, chunks;
- uint8_t *chunk_start, *chunk_end;
- RDMALocalBlock *block = &(rdma->local_ram_blocks.block[current_index]);
- RDMARegister reg;
- RDMARegisterResult *reg_result;
- RDMAControlHeader resp = { .type = RDMA_CONTROL_REGISTER_RESULT };
- RDMAControlHeader head = { .len = sizeof(RDMARegister),
- .type = RDMA_CONTROL_REGISTER_REQUEST,
- .repeat = 1,
- };
-
-retry:
- sge.addr = (uintptr_t)(block->local_host_addr +
- (current_addr - block->offset));
- sge.length = length;
-
- chunk = ram_chunk_index(block->local_host_addr,
- (uint8_t *)(uintptr_t)sge.addr);
- chunk_start = ram_chunk_start(block, chunk);
-
- if (block->is_ram_block) {
- chunks = length / (1UL << RDMA_REG_CHUNK_SHIFT);
-
- if (chunks && ((length % (1UL << RDMA_REG_CHUNK_SHIFT)) == 0)) {
- chunks--;
- }
- } else {
- chunks = block->length / (1UL << RDMA_REG_CHUNK_SHIFT);
-
- if (chunks && ((block->length % (1UL << RDMA_REG_CHUNK_SHIFT)) == 0)) {
- chunks--;
- }
- }
-
- trace_qemu_rdma_write_one_top(chunks + 1,
- (chunks + 1) *
- (1UL << RDMA_REG_CHUNK_SHIFT) / 1024 / 1024);
-
- chunk_end = ram_chunk_end(block, chunk + chunks);
-
-
- while (test_bit(chunk, block->transit_bitmap)) {
- (void)count;
- trace_qemu_rdma_write_one_block(count++, current_index, chunk,
- sge.addr, length, rdma->nb_sent, block->nb_chunks);
-
- ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_RDMA_WRITE, NULL);
-
- if (ret < 0) {
- error_setg(errp, "Failed to Wait for previous write to complete "
- "block %d chunk %" PRIu64
- " current %" PRIu64 " len %" PRIu64 " %d",
- current_index, chunk, sge.addr, length, rdma->nb_sent);
- return -1;
- }
- }
-
- if (!rdma->pin_all || !block->is_ram_block) {
- if (!block->remote_keys[chunk]) {
- /*
- * This chunk has not yet been registered, so first check to see
- * if the entire chunk is zero. If so, tell the other size to
- * memset() + madvise() the entire chunk without RDMA.
- */
-
- if (buffer_is_zero((void *)(uintptr_t)sge.addr, length)) {
- RDMACompress comp = {
- .offset = current_addr,
- .value = 0,
- .block_idx = current_index,
- .length = length,
- };
-
- head.len = sizeof(comp);
- head.type = RDMA_CONTROL_COMPRESS;
-
- trace_qemu_rdma_write_one_zero(chunk, sge.length,
- current_index, current_addr);
-
- compress_to_network(rdma, &comp);
- ret = qemu_rdma_exchange_send(rdma, &head,
- (uint8_t *) &comp, NULL, NULL, NULL, errp);
-
- if (ret < 0) {
- return -1;
- }
-
- /*
- * TODO: Here we are sending something, but we are not
- * accounting for anything transferred. The following is
wrong:
- *
- * stat64_add(&mig_stats.rdma_bytes, sge.length);
- *
- * because we are using some kind of compression. I
- * would think that head.len would be the more similar
- * thing to a correct value.
- */
- stat64_add(&mig_stats.zero_pages,
- sge.length / qemu_target_page_size());
- return 1;
- }
-
- /*
- * Otherwise, tell other side to register.
- */
- reg.current_index = current_index;
- if (block->is_ram_block) {
- reg.key.current_addr = current_addr;
- } else {
- reg.key.chunk = chunk;
- }
- reg.chunks = chunks;
-
- trace_qemu_rdma_write_one_sendreg(chunk, sge.length, current_index,
- current_addr);
-
- register_to_network(rdma, ®);
- ret = qemu_rdma_exchange_send(rdma, &head, (uint8_t *) ®,
- &resp, ®_result_idx, NULL, errp);
- if (ret < 0) {
- return -1;
- }
-
- /* try to overlap this single registration with the one we sent. */
- if (qemu_rdma_register_and_get_keys(rdma, block, sge.addr,
- &sge.lkey, NULL, chunk,
- chunk_start, chunk_end)) {
- error_setg(errp, "cannot get lkey");
- return -1;
- }
-
- reg_result = (RDMARegisterResult *)
- rdma->wr_data[reg_result_idx].control_curr;
-
- network_to_result(reg_result);
-
- trace_qemu_rdma_write_one_recvregres(block->remote_keys[chunk],
- reg_result->rkey, chunk);
-
- block->remote_keys[chunk] = reg_result->rkey;
- block->remote_host_addr = reg_result->host_addr;
- } else {
- /* already registered before */
- if (qemu_rdma_register_and_get_keys(rdma, block, sge.addr,
- &sge.lkey, NULL, chunk,
- chunk_start, chunk_end)) {
- error_setg(errp, "cannot get lkey!");
- return -1;
- }
- }
-
- send_wr.wr.rdma.rkey = block->remote_keys[chunk];
- } else {
- send_wr.wr.rdma.rkey = block->remote_rkey;
-
- if (qemu_rdma_register_and_get_keys(rdma, block, sge.addr,
- &sge.lkey, NULL, chunk,
- chunk_start, chunk_end)) {
- error_setg(errp, "cannot get lkey!");
- return -1;
- }
- }
-
- /*
- * Encode the ram block index and chunk within this wrid.
- * We will use this information at the time of completion
- * to figure out which bitmap to check against and then which
- * chunk in the bitmap to look for.
- */
- send_wr.wr_id = qemu_rdma_make_wrid(RDMA_WRID_RDMA_WRITE,
- current_index, chunk);
-
- send_wr.opcode = IBV_WR_RDMA_WRITE;
- send_wr.send_flags = IBV_SEND_SIGNALED;
- send_wr.sg_list = &sge;
- send_wr.num_sge = 1;
- send_wr.wr.rdma.remote_addr = block->remote_host_addr +
- (current_addr - block->offset);
-
- trace_qemu_rdma_write_one_post(chunk, sge.addr,
send_wr.wr.rdma.remote_addr,
- sge.length);
-
- /*
- * ibv_post_send() does not return negative error numbers,
- * per the specification they are positive - no idea why.
- */
- ret = ibv_post_send(rdma->qp, &send_wr, &bad_wr);
-
- if (ret == ENOMEM) {
- trace_qemu_rdma_write_one_queue_full();
- ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_RDMA_WRITE, NULL);
- if (ret < 0) {
- error_setg(errp, "rdma migration: failed to make "
- "room in full send queue!");
- return -1;
- }
-
- goto retry;
-
- } else if (ret > 0) {
- error_setg_errno(errp, ret,
- "rdma migration: post rdma write failed");
- return -1;
- }
-
- set_bit(chunk, block->transit_bitmap);
- stat64_add(&mig_stats.normal_pages, sge.length / qemu_target_page_size());
- /*
- * We are adding to transferred the amount of data written, but no
- * overhead at all. I will assume that RDMA is magicaly and don't
- * need to transfer (at least) the addresses where it wants to
- * write the pages. Here it looks like it should be something
- * like:
- * sizeof(send_wr) + sge.length
- * but this being RDMA, who knows.
- */
- stat64_add(&mig_stats.rdma_bytes, sge.length);
- ram_transferred_add(sge.length);
- rdma->total_writes++;
-
- return 0;
-}
-
-/*
- * Push out any unwritten RDMA operations.
- *
- * We support sending out multiple chunks at the same time.
- * Not all of them need to get signaled in the completion queue.
- */
-static int qemu_rdma_write_flush(RDMAContext *rdma, Error **errp)
-{
- int ret;
-
- if (!rdma->current_length) {
- return 0;
- }
-
- ret = qemu_rdma_write_one(rdma, rdma->current_index, rdma->current_addr,
- rdma->current_length, errp);
-
- if (ret < 0) {
- return -1;
- }
-
- if (ret == 0) {
- rdma->nb_sent++;
- trace_qemu_rdma_write_flush(rdma->nb_sent);
- }
-
- rdma->current_length = 0;
- rdma->current_addr = 0;
-
- return 0;
-}
-
-static inline bool qemu_rdma_buffer_mergeable(RDMAContext *rdma,
- uint64_t offset, uint64_t len)
-{
- RDMALocalBlock *block;
- uint8_t *host_addr;
- uint8_t *chunk_end;
-
- if (rdma->current_index < 0) {
- return false;
- }
-
- if (rdma->current_chunk < 0) {
- return false;
- }
-
- block = &(rdma->local_ram_blocks.block[rdma->current_index]);
- host_addr = block->local_host_addr + (offset - block->offset);
- chunk_end = ram_chunk_end(block, rdma->current_chunk);
-
- if (rdma->current_length == 0) {
- return false;
- }
-
- /*
- * Only merge into chunk sequentially.
- */
- if (offset != (rdma->current_addr + rdma->current_length)) {
- return false;
- }
-
- if (offset < block->offset) {
- return false;
- }
-
- if ((offset + len) > (block->offset + block->length)) {
- return false;
- }
-
- if ((host_addr + len) > chunk_end) {
- return false;
- }
-
- return true;
-}
-
-/*
- * We're not actually writing here, but doing three things:
- *
- * 1. Identify the chunk the buffer belongs to.
- * 2. If the chunk is full or the buffer doesn't belong to the current
- * chunk, then start a new chunk and flush() the old chunk.
- * 3. To keep the hardware busy, we also group chunks into batches
- * and only require that a batch gets acknowledged in the completion
- * queue instead of each individual chunk.
- */
-static int qemu_rdma_write(RDMAContext *rdma,
- uint64_t block_offset, uint64_t offset,
- uint64_t len, Error **errp)
-{
- uint64_t current_addr = block_offset + offset;
- uint64_t index = rdma->current_index;
- uint64_t chunk = rdma->current_chunk;
-
- /* If we cannot merge it, we flush the current buffer first. */
- if (!qemu_rdma_buffer_mergeable(rdma, current_addr, len)) {
- if (qemu_rdma_write_flush(rdma, errp) < 0) {
- return -1;
- }
- rdma->current_length = 0;
- rdma->current_addr = current_addr;
-
- qemu_rdma_search_ram_block(rdma, block_offset,
- offset, len, &index, &chunk);
- rdma->current_index = index;
- rdma->current_chunk = chunk;
- }
-
- /* merge it */
- rdma->current_length += len;
-
- /* flush it if buffer is too large */
- if (rdma->current_length >= RDMA_MERGE_MAX) {
- return qemu_rdma_write_flush(rdma, errp);
- }
-
- return 0;
-}
-
-static void qemu_rdma_cleanup(RDMAContext *rdma)
-{
- Error *err = NULL;
-
- if (rdma->cm_id && rdma->connected) {
- if ((rdma->errored ||
- migrate_get_current()->state == MIGRATION_STATUS_CANCELLING) &&
- !rdma->received_error) {
- RDMAControlHeader head = { .len = 0,
- .type = RDMA_CONTROL_ERROR,
- .repeat = 1,
- };
- warn_report("Early error. Sending error.");
- if (qemu_rdma_post_send_control(rdma, NULL, &head, &err) < 0) {
- warn_report_err(err);
- }
- }
-
- rdma_disconnect(rdma->cm_id);
- trace_qemu_rdma_cleanup_disconnect();
- rdma->connected = false;
- }
-
- if (rdma->channel) {
- qemu_set_fd_handler(rdma->channel->fd, NULL, NULL, NULL);
- }
- g_free(rdma->dest_blocks);
- rdma->dest_blocks = NULL;
-
- for (int i = 0; i < RDMA_WRID_MAX; i++) {
- if (rdma->wr_data[i].control_mr) {
- rdma->total_registrations--;
- ibv_dereg_mr(rdma->wr_data[i].control_mr);
- }
- rdma->wr_data[i].control_mr = NULL;
- }
-
- if (rdma->local_ram_blocks.block) {
- while (rdma->local_ram_blocks.nb_blocks) {
- rdma_delete_block(rdma, &rdma->local_ram_blocks.block[0]);
- }
- }
-
- if (rdma->qp) {
- rdma_destroy_qp(rdma->cm_id);
- rdma->qp = NULL;
- }
- if (rdma->recv_cq) {
- ibv_destroy_cq(rdma->recv_cq);
- rdma->recv_cq = NULL;
- }
- if (rdma->send_cq) {
- ibv_destroy_cq(rdma->send_cq);
- rdma->send_cq = NULL;
- }
- if (rdma->recv_comp_channel) {
- ibv_destroy_comp_channel(rdma->recv_comp_channel);
- rdma->recv_comp_channel = NULL;
- }
- if (rdma->send_comp_channel) {
- ibv_destroy_comp_channel(rdma->send_comp_channel);
- rdma->send_comp_channel = NULL;
- }
- if (rdma->pd) {
- ibv_dealloc_pd(rdma->pd);
- rdma->pd = NULL;
- }
- if (rdma->cm_id) {
- rdma_destroy_id(rdma->cm_id);
- rdma->cm_id = NULL;
- }
-
- /* the destination side, listen_id and channel is shared */
- if (rdma->listen_id) {
- if (!rdma->is_return_path) {
- rdma_destroy_id(rdma->listen_id);
- }
- rdma->listen_id = NULL;
-
- if (rdma->channel) {
- if (!rdma->is_return_path) {
- rdma_destroy_event_channel(rdma->channel);
- }
- rdma->channel = NULL;
- }
- }
-
- if (rdma->channel) {
- rdma_destroy_event_channel(rdma->channel);
- rdma->channel = NULL;
- }
- g_free(rdma->host);
- rdma->host = NULL;
-}
-
-
-static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp)
-{
- int ret;
-
- /*
- * Will be validated against destination's actual capabilities
- * after the connect() completes.
- */
- rdma->pin_all = pin_all;
-
- ret = qemu_rdma_resolve_host(rdma, errp);
- if (ret < 0) {
- goto err_rdma_source_init;
- }
-
- ret = qemu_rdma_alloc_pd_cq(rdma, errp);
- if (ret < 0) {
- goto err_rdma_source_init;
- }
-
- ret = qemu_rdma_alloc_qp(rdma);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: rdma migration: error allocating qp!");
- goto err_rdma_source_init;
- }
-
- qemu_rdma_init_ram_blocks(rdma);
-
- /* Build the hash that maps from offset to RAMBlock */
- rdma->blockmap = g_hash_table_new(g_direct_hash, g_direct_equal);
- for (int i = 0; i < rdma->local_ram_blocks.nb_blocks; i++) {
- g_hash_table_insert(rdma->blockmap,
- (void *)(uintptr_t)rdma->local_ram_blocks.block[i].offset,
- &rdma->local_ram_blocks.block[i]);
- }
-
- for (int i = 0; i < RDMA_WRID_MAX; i++) {
- ret = qemu_rdma_reg_control(rdma, i);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: rdma migration: error "
- "registering %d control!", i);
- goto err_rdma_source_init;
- }
- }
-
- return 0;
-
-err_rdma_source_init:
- qemu_rdma_cleanup(rdma);
- return -1;
-}
-
-static int qemu_get_cm_event_timeout(RDMAContext *rdma,
- struct rdma_cm_event **cm_event,
- long msec, Error **errp)
-{
- int ret;
- struct pollfd poll_fd = {
- .fd = rdma->channel->fd,
- .events = POLLIN,
- .revents = 0
- };
-
- do {
- ret = poll(&poll_fd, 1, msec);
- } while (ret < 0 && errno == EINTR);
-
- if (ret == 0) {
- error_setg(errp, "RDMA ERROR: poll cm event timeout");
- return -1;
- } else if (ret < 0) {
- error_setg(errp, "RDMA ERROR: failed to poll cm event, errno=%i",
- errno);
- return -1;
- } else if (poll_fd.revents & POLLIN) {
- if (rdma_get_cm_event(rdma->channel, cm_event) < 0) {
- error_setg(errp, "RDMA ERROR: failed to get cm event");
- return -1;
- }
- return 0;
- } else {
- error_setg(errp, "RDMA ERROR: no POLLIN event, revent=%x",
- poll_fd.revents);
- return -1;
- }
-}
-
-static int qemu_rdma_connect(RDMAContext *rdma, bool return_path,
- Error **errp)
-{
- RDMACapabilities cap = {
- .version = RDMA_CONTROL_VERSION_CURRENT,
- .flags = 0,
- };
- struct rdma_conn_param conn_param = { .initiator_depth = 2,
- .retry_count = 5,
- .private_data = &cap,
- .private_data_len = sizeof(cap),
- };
- struct rdma_cm_event *cm_event;
- int ret;
-
- /*
- * Only negotiate the capability with destination if the user
- * on the source first requested the capability.
- */
- if (rdma->pin_all) {
- trace_qemu_rdma_connect_pin_all_requested();
- cap.flags |= RDMA_CAPABILITY_PIN_ALL;
- }
-
- caps_to_network(&cap);
-
- ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY, errp);
- if (ret < 0) {
- goto err_rdma_source_connect;
- }
-
- ret = rdma_connect(rdma->cm_id, &conn_param);
- if (ret < 0) {
- error_setg_errno(errp, errno,
- "RDMA ERROR: connecting to destination!");
- goto err_rdma_source_connect;
- }
-
- if (return_path) {
- ret = qemu_get_cm_event_timeout(rdma, &cm_event, 5000, errp);
- } else {
- ret = rdma_get_cm_event(rdma->channel, &cm_event);
- if (ret < 0) {
- error_setg_errno(errp, errno,
- "RDMA ERROR: failed to get cm event");
- }
- }
- if (ret < 0) {
- goto err_rdma_source_connect;
- }
-
- if (cm_event->event != RDMA_CM_EVENT_ESTABLISHED) {
- error_setg(errp, "RDMA ERROR: connecting to destination!");
- rdma_ack_cm_event(cm_event);
- goto err_rdma_source_connect;
- }
- rdma->connected = true;
-
- memcpy(&cap, cm_event->param.conn.private_data, sizeof(cap));
- network_to_caps(&cap);
-
- /*
- * Verify that the *requested* capabilities are supported by the
destination
- * and disable them otherwise.
- */
- if (rdma->pin_all && !(cap.flags & RDMA_CAPABILITY_PIN_ALL)) {
- warn_report("RDMA: Server cannot support pinning all memory. "
- "Will register memory dynamically.");
- rdma->pin_all = false;
- }
-
- trace_qemu_rdma_connect_pin_all_outcome(rdma->pin_all);
-
- rdma_ack_cm_event(cm_event);
-
- rdma->control_ready_expected = 1;
- rdma->nb_sent = 0;
- return 0;
-
-err_rdma_source_connect:
- qemu_rdma_cleanup(rdma);
- return -1;
-}
-
-static int qemu_rdma_dest_init(RDMAContext *rdma, Error **errp)
-{
- Error *err = NULL;
- int ret;
- struct rdma_cm_id *listen_id;
- char ip[40] = "unknown";
- struct rdma_addrinfo *res, *e;
- char port_str[16];
- int reuse = 1;
-
- for (int i = 0; i < RDMA_WRID_MAX; i++) {
- rdma->wr_data[i].control_len = 0;
- rdma->wr_data[i].control_curr = NULL;
- }
-
- if (!rdma->host || !rdma->host[0]) {
- error_setg(errp, "RDMA ERROR: RDMA host is not set!");
- rdma->errored = true;
- return -1;
- }
- /* create CM channel */
- rdma->channel = rdma_create_event_channel();
- if (!rdma->channel) {
- error_setg(errp, "RDMA ERROR: could not create rdma event channel");
- rdma->errored = true;
- return -1;
- }
-
- /* create CM id */
- ret = rdma_create_id(rdma->channel, &listen_id, NULL, RDMA_PS_TCP);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: could not create cm_id!");
- goto err_dest_init_create_listen_id;
- }
-
- snprintf(port_str, 16, "%d", rdma->port);
- port_str[15] = '\0';
-
- ret = rdma_getaddrinfo(rdma->host, port_str, NULL, &res);
- if (ret) {
- error_setg(errp, "RDMA ERROR: could not rdma_getaddrinfo address %s",
- rdma->host);
- goto err_dest_init_bind_addr;
- }
-
- ret = rdma_set_option(listen_id, RDMA_OPTION_ID, RDMA_OPTION_ID_REUSEADDR,
- &reuse, sizeof reuse);
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: Error: could not set REUSEADDR option");
- goto err_dest_init_bind_addr;
- }
-
- /* Try all addresses, saving the first error in @err */
- for (e = res; e != NULL; e = e->ai_next) {
- Error **local_errp = err ? NULL : &err;
-
- inet_ntop(e->ai_family,
- &((struct sockaddr_in *) e->ai_dst_addr)->sin_addr, ip, sizeof ip);
- trace_qemu_rdma_dest_init_trying(rdma->host, ip);
- ret = rdma_bind_addr(listen_id, e->ai_dst_addr);
- if (ret < 0) {
- continue;
- }
- if (e->ai_family == AF_INET6) {
- ret = qemu_rdma_broken_ipv6_kernel(listen_id->verbs,
- local_errp);
- if (ret < 0) {
- continue;
- }
- }
- error_free(err);
- break;
- }
-
- rdma_freeaddrinfo(res);
- if (!e) {
- if (err) {
- error_propagate(errp, err);
- } else {
- error_setg(errp, "RDMA ERROR: Error: could not rdma_bind_addr!");
- }
- goto err_dest_init_bind_addr;
- }
-
- rdma->listen_id = listen_id;
- qemu_rdma_dump_gid("dest_init", listen_id);
- return 0;
-
-err_dest_init_bind_addr:
- rdma_destroy_id(listen_id);
-err_dest_init_create_listen_id:
- rdma_destroy_event_channel(rdma->channel);
- rdma->channel = NULL;
- rdma->errored = true;
- return -1;
-
-}
-
-static void qemu_rdma_return_path_dest_init(RDMAContext *rdma_return_path,
- RDMAContext *rdma)
-{
- for (int i = 0; i < RDMA_WRID_MAX; i++) {
- rdma_return_path->wr_data[i].control_len = 0;
- rdma_return_path->wr_data[i].control_curr = NULL;
- }
-
- /*the CM channel and CM id is shared*/
- rdma_return_path->channel = rdma->channel;
- rdma_return_path->listen_id = rdma->listen_id;
-
- rdma->return_path = rdma_return_path;
- rdma_return_path->return_path = rdma;
- rdma_return_path->is_return_path = true;
-}
-
-static RDMAContext *qemu_rdma_data_init(InetSocketAddress *saddr, Error **errp)
-{
- RDMAContext *rdma = NULL;
-
- rdma = g_new0(RDMAContext, 1);
- rdma->current_index = -1;
- rdma->current_chunk = -1;
-
- rdma->host = g_strdup(saddr->host);
- rdma->port = atoi(saddr->port);
- return rdma;
-}
-
-/*
- * QEMUFile interface to the control channel.
- * SEND messages for control only.
- * VM's ram is handled with regular RDMA messages.
- */
-static ssize_t qio_channel_rdma_writev(QIOChannel *ioc,
- const struct iovec *iov,
- size_t niov,
- int *fds,
- size_t nfds,
- int flags,
- Error **errp)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- RDMAContext *rdma;
- int ret;
- ssize_t done = 0;
- size_t len;
-
- RCU_READ_LOCK_GUARD();
- rdma = qatomic_rcu_read(&rioc->rdmaout);
-
- if (!rdma) {
- error_setg(errp, "RDMA control channel output is not set");
- return -1;
- }
-
- if (rdma->errored) {
- error_setg(errp,
- "RDMA is in an error state waiting migration to abort!");
- return -1;
- }
-
- /*
- * Push out any writes that
- * we're queued up for VM's ram.
- */
- ret = qemu_rdma_write_flush(rdma, errp);
- if (ret < 0) {
- rdma->errored = true;
- return -1;
- }
-
- for (int i = 0; i < niov; i++) {
- size_t remaining = iov[i].iov_len;
- uint8_t * data = (void *)iov[i].iov_base;
- while (remaining) {
- RDMAControlHeader head = {};
-
- len = MIN(remaining, RDMA_SEND_INCREMENT);
- remaining -= len;
-
- head.len = len;
- head.type = RDMA_CONTROL_QEMU_FILE;
-
- ret = qemu_rdma_exchange_send(rdma, &head,
- data, NULL, NULL, NULL, errp);
-
- if (ret < 0) {
- rdma->errored = true;
- return -1;
- }
-
- data += len;
- done += len;
- }
- }
-
- return done;
-}
-
-static size_t qemu_rdma_fill(RDMAContext *rdma, uint8_t *buf,
- size_t size, int idx)
-{
- size_t len = 0;
-
- if (rdma->wr_data[idx].control_len) {
- trace_qemu_rdma_fill(rdma->wr_data[idx].control_len, size);
-
- len = MIN(size, rdma->wr_data[idx].control_len);
- memcpy(buf, rdma->wr_data[idx].control_curr, len);
- rdma->wr_data[idx].control_curr += len;
- rdma->wr_data[idx].control_len -= len;
- }
-
- return len;
-}
-
-/*
- * QEMUFile interface to the control channel.
- * RDMA links don't use bytestreams, so we have to
- * return bytes to QEMUFile opportunistically.
- */
-static ssize_t qio_channel_rdma_readv(QIOChannel *ioc,
- const struct iovec *iov,
- size_t niov,
- int **fds,
- size_t *nfds,
- int flags,
- Error **errp)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- RDMAContext *rdma;
- RDMAControlHeader head;
- int ret;
- ssize_t done = 0;
- size_t len;
-
- RCU_READ_LOCK_GUARD();
- rdma = qatomic_rcu_read(&rioc->rdmain);
-
- if (!rdma) {
- error_setg(errp, "RDMA control channel input is not set");
- return -1;
- }
-
- if (rdma->errored) {
- error_setg(errp,
- "RDMA is in an error state waiting migration to abort!");
- return -1;
- }
-
- for (int i = 0; i < niov; i++) {
- size_t want = iov[i].iov_len;
- uint8_t *data = (void *)iov[i].iov_base;
-
- /*
- * First, we hold on to the last SEND message we
- * were given and dish out the bytes until we run
- * out of bytes.
- */
- len = qemu_rdma_fill(rdma, data, want, 0);
- done += len;
- want -= len;
- /* Got what we needed, so go to next iovec */
- if (want == 0) {
- continue;
- }
-
- /* If we got any data so far, then don't wait
- * for more, just return what we have */
- if (done > 0) {
- break;
- }
-
-
- /* We've got nothing at all, so lets wait for
- * more to arrive
- */
- ret = qemu_rdma_exchange_recv(rdma, &head, RDMA_CONTROL_QEMU_FILE,
- errp);
-
- if (ret < 0) {
- rdma->errored = true;
- return -1;
- }
-
- /*
- * SEND was received with new bytes, now try again.
- */
- len = qemu_rdma_fill(rdma, data, want, 0);
- done += len;
- want -= len;
-
- /* Still didn't get enough, so lets just return */
- if (want) {
- if (done == 0) {
- return QIO_CHANNEL_ERR_BLOCK;
- } else {
- break;
- }
- }
- }
- return done;
-}
-
-/*
- * Block until all the outstanding chunks have been delivered by the hardware.
- */
-static int qemu_rdma_drain_cq(RDMAContext *rdma)
-{
- Error *err = NULL;
-
- if (qemu_rdma_write_flush(rdma, &err) < 0) {
- error_report_err(err);
- return -1;
- }
-
- while (rdma->nb_sent) {
- if (qemu_rdma_block_for_wrid(rdma, RDMA_WRID_RDMA_WRITE, NULL) < 0) {
- error_report("rdma migration: complete polling error!");
- return -1;
- }
- }
-
- qemu_rdma_unregister_waiting(rdma);
-
- return 0;
-}
-
-
-static int qio_channel_rdma_set_blocking(QIOChannel *ioc,
- bool blocking,
- Error **errp)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- /* XXX we should make readv/writev actually honour this :-) */
- rioc->blocking = blocking;
- return 0;
-}
-
-
-typedef struct QIOChannelRDMASource QIOChannelRDMASource;
-struct QIOChannelRDMASource {
- GSource parent;
- QIOChannelRDMA *rioc;
- GIOCondition condition;
-};
-
-static gboolean
-qio_channel_rdma_source_prepare(GSource *source,
- gint *timeout)
-{
- QIOChannelRDMASource *rsource = (QIOChannelRDMASource *)source;
- RDMAContext *rdma;
- GIOCondition cond = 0;
- *timeout = -1;
-
- RCU_READ_LOCK_GUARD();
- if (rsource->condition == G_IO_IN) {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmain);
- } else {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmaout);
- }
-
- if (!rdma) {
- error_report("RDMAContext is NULL when prepare Gsource");
- return FALSE;
- }
-
- if (rdma->wr_data[0].control_len) {
- cond |= G_IO_IN;
- }
- cond |= G_IO_OUT;
-
- return cond & rsource->condition;
-}
-
-static gboolean
-qio_channel_rdma_source_check(GSource *source)
-{
- QIOChannelRDMASource *rsource = (QIOChannelRDMASource *)source;
- RDMAContext *rdma;
- GIOCondition cond = 0;
-
- RCU_READ_LOCK_GUARD();
- if (rsource->condition == G_IO_IN) {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmain);
- } else {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmaout);
- }
-
- if (!rdma) {
- error_report("RDMAContext is NULL when check Gsource");
- return FALSE;
- }
-
- if (rdma->wr_data[0].control_len) {
- cond |= G_IO_IN;
- }
- cond |= G_IO_OUT;
-
- return cond & rsource->condition;
-}
-
-static gboolean
-qio_channel_rdma_source_dispatch(GSource *source,
- GSourceFunc callback,
- gpointer user_data)
-{
- QIOChannelFunc func = (QIOChannelFunc)callback;
- QIOChannelRDMASource *rsource = (QIOChannelRDMASource *)source;
- RDMAContext *rdma;
- GIOCondition cond = 0;
-
- RCU_READ_LOCK_GUARD();
- if (rsource->condition == G_IO_IN) {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmain);
- } else {
- rdma = qatomic_rcu_read(&rsource->rioc->rdmaout);
- }
-
- if (!rdma) {
- error_report("RDMAContext is NULL when dispatch Gsource");
- return FALSE;
- }
-
- if (rdma->wr_data[0].control_len) {
- cond |= G_IO_IN;
- }
- cond |= G_IO_OUT;
-
- return (*func)(QIO_CHANNEL(rsource->rioc),
- (cond & rsource->condition),
- user_data);
-}
-
-static void
-qio_channel_rdma_source_finalize(GSource *source)
-{
- QIOChannelRDMASource *ssource = (QIOChannelRDMASource *)source;
-
- object_unref(OBJECT(ssource->rioc));
-}
-
-static GSourceFuncs qio_channel_rdma_source_funcs = {
- qio_channel_rdma_source_prepare,
- qio_channel_rdma_source_check,
- qio_channel_rdma_source_dispatch,
- qio_channel_rdma_source_finalize
-};
-
-static GSource *qio_channel_rdma_create_watch(QIOChannel *ioc,
- GIOCondition condition)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- QIOChannelRDMASource *ssource;
- GSource *source;
-
- source = g_source_new(&qio_channel_rdma_source_funcs,
- sizeof(QIOChannelRDMASource));
- ssource = (QIOChannelRDMASource *)source;
-
- ssource->rioc = rioc;
- object_ref(OBJECT(rioc));
-
- ssource->condition = condition;
-
- return source;
-}
-
-static void qio_channel_rdma_set_aio_fd_handler(QIOChannel *ioc,
- AioContext *read_ctx,
- IOHandler *io_read,
- AioContext *write_ctx,
- IOHandler *io_write,
- void *opaque)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- if (io_read) {
- aio_set_fd_handler(read_ctx, rioc->rdmain->recv_comp_channel->fd,
- io_read, io_write, NULL, NULL, opaque);
- aio_set_fd_handler(read_ctx, rioc->rdmain->send_comp_channel->fd,
- io_read, io_write, NULL, NULL, opaque);
- } else {
- aio_set_fd_handler(write_ctx, rioc->rdmaout->recv_comp_channel->fd,
- io_read, io_write, NULL, NULL, opaque);
- aio_set_fd_handler(write_ctx, rioc->rdmaout->send_comp_channel->fd,
- io_read, io_write, NULL, NULL, opaque);
- }
-}
-
-struct rdma_close_rcu {
- struct rcu_head rcu;
- RDMAContext *rdmain;
- RDMAContext *rdmaout;
-};
-
-/* callback from qio_channel_rdma_close via call_rcu */
-static void qio_channel_rdma_close_rcu(struct rdma_close_rcu *rcu)
-{
- if (rcu->rdmain) {
- qemu_rdma_cleanup(rcu->rdmain);
- }
-
- if (rcu->rdmaout) {
- qemu_rdma_cleanup(rcu->rdmaout);
- }
-
- g_free(rcu->rdmain);
- g_free(rcu->rdmaout);
- g_free(rcu);
-}
-
-static int qio_channel_rdma_close(QIOChannel *ioc,
- Error **errp)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- RDMAContext *rdmain, *rdmaout;
- struct rdma_close_rcu *rcu = g_new(struct rdma_close_rcu, 1);
-
- trace_qemu_rdma_close();
-
- rdmain = rioc->rdmain;
- if (rdmain) {
- qatomic_rcu_set(&rioc->rdmain, NULL);
- }
-
- rdmaout = rioc->rdmaout;
- if (rdmaout) {
- qatomic_rcu_set(&rioc->rdmaout, NULL);
- }
-
- rcu->rdmain = rdmain;
- rcu->rdmaout = rdmaout;
- call_rcu(rcu, qio_channel_rdma_close_rcu, rcu);
-
- return 0;
-}
-
-static int
-qio_channel_rdma_shutdown(QIOChannel *ioc,
- QIOChannelShutdown how,
- Error **errp)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(ioc);
- RDMAContext *rdmain, *rdmaout;
-
- RCU_READ_LOCK_GUARD();
-
- rdmain = qatomic_rcu_read(&rioc->rdmain);
- rdmaout = qatomic_rcu_read(&rioc->rdmain);
-
- switch (how) {
- case QIO_CHANNEL_SHUTDOWN_READ:
- if (rdmain) {
- rdmain->errored = true;
- }
- break;
- case QIO_CHANNEL_SHUTDOWN_WRITE:
- if (rdmaout) {
- rdmaout->errored = true;
- }
- break;
- case QIO_CHANNEL_SHUTDOWN_BOTH:
- default:
- if (rdmain) {
- rdmain->errored = true;
- }
- if (rdmaout) {
- rdmaout->errored = true;
- }
- break;
- }
-
- return 0;
-}
-
-/*
- * Parameters:
- * @offset == 0 :
- * This means that 'block_offset' is a full virtual address that does
not
- * belong to a RAMBlock of the virtual machine and instead
- * represents a private malloc'd memory area that the caller wishes to
- * transfer.
- *
- * @offset != 0 :
- * Offset is an offset to be added to block_offset and used
- * to also lookup the corresponding RAMBlock.
- *
- * @size : Number of bytes to transfer
- *
- * @pages_sent : User-specificed pointer to indicate how many pages were
- * sent. Usually, this will not be more than a few bytes of
- * the protocol because most transfers are sent
asynchronously.
- */
-static int qemu_rdma_save_page(QEMUFile *f, ram_addr_t block_offset,
- ram_addr_t offset, size_t size)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
- Error *err = NULL;
- RDMAContext *rdma;
- int ret;
-
- RCU_READ_LOCK_GUARD();
- rdma = qatomic_rcu_read(&rioc->rdmaout);
-
- if (!rdma) {
- return -1;
- }
-
- if (rdma_errored(rdma)) {
- return -1;
- }
-
- qemu_fflush(f);
-
- /*
- * Add this page to the current 'chunk'. If the chunk
- * is full, or the page doesn't belong to the current chunk,
- * an actual RDMA write will occur and a new chunk will be formed.
- */
- ret = qemu_rdma_write(rdma, block_offset, offset, size, &err);
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
-
- /*
- * Drain the Completion Queue if possible, but do not block,
- * just poll.
- *
- * If nothing to poll, the end of the iteration will do this
- * again to make sure we don't overflow the request queue.
- */
- while (1) {
- uint64_t wr_id, wr_id_in;
- ret = qemu_rdma_poll(rdma, rdma->recv_cq, &wr_id_in, NULL);
-
- if (ret < 0) {
- error_report("rdma migration: polling error");
- goto err;
- }
-
- wr_id = wr_id_in & RDMA_WRID_TYPE_MASK;
-
- if (wr_id == RDMA_WRID_NONE) {
- break;
- }
- }
-
- while (1) {
- uint64_t wr_id, wr_id_in;
- ret = qemu_rdma_poll(rdma, rdma->send_cq, &wr_id_in, NULL);
-
- if (ret < 0) {
- error_report("rdma migration: polling error");
- goto err;
- }
-
- wr_id = wr_id_in & RDMA_WRID_TYPE_MASK;
-
- if (wr_id == RDMA_WRID_NONE) {
- break;
- }
- }
-
- return RAM_SAVE_CONTROL_DELAYED;
-
-err:
- rdma->errored = true;
- return -1;
-}
-
-int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
- ram_addr_t offset, size_t size)
-{
- if (!migrate_rdma() || migration_in_postcopy()) {
- return RAM_SAVE_CONTROL_NOT_SUPP;
- }
-
- int ret = qemu_rdma_save_page(f, block_offset, offset, size);
-
- if (ret != RAM_SAVE_CONTROL_DELAYED &&
- ret != RAM_SAVE_CONTROL_NOT_SUPP) {
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- }
- }
- return ret;
-}
-
-static void rdma_accept_incoming_migration(void *opaque);
-
-static void rdma_cm_poll_handler(void *opaque)
-{
- RDMAContext *rdma = opaque;
- struct rdma_cm_event *cm_event;
- MigrationIncomingState *mis = migration_incoming_get_current();
-
- if (rdma_get_cm_event(rdma->channel, &cm_event) < 0) {
- error_report("get_cm_event failed %d", errno);
- return;
- }
-
- if (cm_event->event == RDMA_CM_EVENT_DISCONNECTED ||
- cm_event->event == RDMA_CM_EVENT_DEVICE_REMOVAL) {
- if (!rdma->errored &&
- migration_incoming_get_current()->state !=
- MIGRATION_STATUS_COMPLETED) {
- error_report("receive cm event, cm event is %d", cm_event->event);
- rdma->errored = true;
- if (rdma->return_path) {
- rdma->return_path->errored = true;
- }
- }
- rdma_ack_cm_event(cm_event);
- if (mis->loadvm_co) {
- qemu_coroutine_enter(mis->loadvm_co);
- }
- return;
- }
- rdma_ack_cm_event(cm_event);
-}
-
-static int qemu_rdma_accept(RDMAContext *rdma)
-{
- Error *err = NULL;
- RDMACapabilities cap;
- struct rdma_conn_param conn_param = {
- .responder_resources = 2,
- .private_data = &cap,
- .private_data_len = sizeof(cap),
- };
- RDMAContext *rdma_return_path = NULL;
- g_autoptr(InetSocketAddress) isock = g_new0(InetSocketAddress, 1);
- struct rdma_cm_event *cm_event;
- struct ibv_context *verbs;
- int ret;
-
- ret = rdma_get_cm_event(rdma->channel, &cm_event);
- if (ret < 0) {
- goto err_rdma_dest_wait;
- }
-
- if (cm_event->event != RDMA_CM_EVENT_CONNECT_REQUEST) {
- rdma_ack_cm_event(cm_event);
- goto err_rdma_dest_wait;
- }
-
- isock->host = g_strdup(rdma->host);
- isock->port = g_strdup_printf("%d", rdma->port);
-
- /*
- * initialize the RDMAContext for return path for postcopy after first
- * connection request reached.
- */
- if ((migrate_postcopy() || migrate_return_path())
- && !rdma->is_return_path) {
- rdma_return_path = qemu_rdma_data_init(isock, NULL);
- if (rdma_return_path == NULL) {
- rdma_ack_cm_event(cm_event);
- goto err_rdma_dest_wait;
- }
-
- qemu_rdma_return_path_dest_init(rdma_return_path, rdma);
- }
-
- memcpy(&cap, cm_event->param.conn.private_data, sizeof(cap));
-
- network_to_caps(&cap);
-
- if (cap.version < 1 || cap.version > RDMA_CONTROL_VERSION_CURRENT) {
- error_report("Unknown source RDMA version: %d, bailing...",
- cap.version);
- rdma_ack_cm_event(cm_event);
- goto err_rdma_dest_wait;
- }
-
- /*
- * Respond with only the capabilities this version of QEMU knows about.
- */
- cap.flags &= known_capabilities;
-
- /*
- * Enable the ones that we do know about.
- * Add other checks here as new ones are introduced.
- */
- if (cap.flags & RDMA_CAPABILITY_PIN_ALL) {
- rdma->pin_all = true;
- }
-
- rdma->cm_id = cm_event->id;
- verbs = cm_event->id->verbs;
-
- rdma_ack_cm_event(cm_event);
-
- trace_qemu_rdma_accept_pin_state(rdma->pin_all);
-
- caps_to_network(&cap);
-
- trace_qemu_rdma_accept_pin_verbsc(verbs);
-
- if (!rdma->verbs) {
- rdma->verbs = verbs;
- } else if (rdma->verbs != verbs) {
- error_report("ibv context not matching %p, %p!", rdma->verbs,
- verbs);
- goto err_rdma_dest_wait;
- }
-
- qemu_rdma_dump_id("dest_init", verbs);
-
- ret = qemu_rdma_alloc_pd_cq(rdma, &err);
- if (ret < 0) {
- error_report_err(err);
- goto err_rdma_dest_wait;
- }
-
- ret = qemu_rdma_alloc_qp(rdma);
- if (ret < 0) {
- error_report("rdma migration: error allocating qp!");
- goto err_rdma_dest_wait;
- }
-
- qemu_rdma_init_ram_blocks(rdma);
-
- for (int i = 0; i < RDMA_WRID_MAX; i++) {
- ret = qemu_rdma_reg_control(rdma, i);
- if (ret < 0) {
- error_report("rdma: error registering %d control", i);
- goto err_rdma_dest_wait;
- }
- }
-
- /* Accept the second connection request for return path */
- if ((migrate_postcopy() || migrate_return_path())
- && !rdma->is_return_path) {
- qemu_set_fd_handler(rdma->channel->fd, rdma_accept_incoming_migration,
- NULL,
- (void *)(intptr_t)rdma->return_path);
- } else {
- qemu_set_fd_handler(rdma->channel->fd, rdma_cm_poll_handler,
- NULL, rdma);
- }
-
- ret = rdma_accept(rdma->cm_id, &conn_param);
- if (ret < 0) {
- error_report("rdma_accept failed");
- goto err_rdma_dest_wait;
- }
-
- ret = rdma_get_cm_event(rdma->channel, &cm_event);
- if (ret < 0) {
- error_report("rdma_accept get_cm_event failed");
- goto err_rdma_dest_wait;
- }
-
- if (cm_event->event != RDMA_CM_EVENT_ESTABLISHED) {
- error_report("rdma_accept not event established");
- rdma_ack_cm_event(cm_event);
- goto err_rdma_dest_wait;
- }
-
- rdma_ack_cm_event(cm_event);
- rdma->connected = true;
-
- ret = qemu_rdma_post_recv_control(rdma, RDMA_WRID_READY, &err);
- if (ret < 0) {
- error_report_err(err);
- goto err_rdma_dest_wait;
- }
-
- qemu_rdma_dump_gid("dest_connect", rdma->cm_id);
-
- return 0;
-
-err_rdma_dest_wait:
- rdma->errored = true;
- qemu_rdma_cleanup(rdma);
- g_free(rdma_return_path);
- return -1;
-}
-
-static int dest_ram_sort_func(const void *a, const void *b)
-{
- unsigned int a_index = ((const RDMALocalBlock *)a)->src_index;
- unsigned int b_index = ((const RDMALocalBlock *)b)->src_index;
-
- return (a_index < b_index) ? -1 : (a_index != b_index);
-}
-
-/*
- * During each iteration of the migration, we listen for instructions
- * by the source VM to perform dynamic page registrations before they
- * can perform RDMA operations.
- *
- * We respond with the 'rkey'.
- *
- * Keep doing this until the source tells us to stop.
- */
-int rdma_registration_handle(QEMUFile *f)
-{
- RDMAControlHeader reg_resp = { .len = sizeof(RDMARegisterResult),
- .type = RDMA_CONTROL_REGISTER_RESULT,
- .repeat = 0,
- };
- RDMAControlHeader unreg_resp = { .len = 0,
- .type = RDMA_CONTROL_UNREGISTER_FINISHED,
- .repeat = 0,
- };
- RDMAControlHeader blocks = { .type = RDMA_CONTROL_RAM_BLOCKS_RESULT,
- .repeat = 1 };
- QIOChannelRDMA *rioc;
- Error *err = NULL;
- RDMAContext *rdma;
- RDMALocalBlocks *local;
- RDMAControlHeader head;
- RDMARegister *reg, *registers;
- RDMACompress *comp;
- RDMARegisterResult *reg_result;
- static RDMARegisterResult results[RDMA_CONTROL_MAX_COMMANDS_PER_MESSAGE];
- RDMALocalBlock *block;
- void *host_addr;
- int ret;
- int idx = 0;
-
- if (!migrate_rdma()) {
- return 0;
- }
-
- RCU_READ_LOCK_GUARD();
- rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
- rdma = qatomic_rcu_read(&rioc->rdmain);
-
- if (!rdma) {
- return -1;
- }
-
- if (rdma_errored(rdma)) {
- return -1;
- }
-
- local = &rdma->local_ram_blocks;
- do {
- trace_rdma_registration_handle_wait();
-
- ret = qemu_rdma_exchange_recv(rdma, &head, RDMA_CONTROL_NONE, &err);
-
- if (ret < 0) {
- error_report_err(err);
- break;
- }
-
- if (head.repeat > RDMA_CONTROL_MAX_COMMANDS_PER_MESSAGE) {
- error_report("rdma: Too many requests in this message (%d)."
- "Bailing.", head.repeat);
- break;
- }
-
- switch (head.type) {
- case RDMA_CONTROL_COMPRESS:
- comp = (RDMACompress *) rdma->wr_data[idx].control_curr;
- network_to_compress(comp);
-
- trace_rdma_registration_handle_compress(comp->length,
- comp->block_idx,
- comp->offset);
- if (comp->block_idx >= rdma->local_ram_blocks.nb_blocks) {
- error_report("rdma: 'compress' bad block index %u (vs %d)",
- (unsigned int)comp->block_idx,
- rdma->local_ram_blocks.nb_blocks);
- goto err;
- }
- block = &(rdma->local_ram_blocks.block[comp->block_idx]);
-
- host_addr = block->local_host_addr +
- (comp->offset - block->offset);
- if (comp->value) {
- error_report("rdma: Zero page with non-zero (%d) value",
- comp->value);
- goto err;
- }
- ram_handle_zero(host_addr, comp->length);
- break;
-
- case RDMA_CONTROL_REGISTER_FINISHED:
- trace_rdma_registration_handle_finished();
- return 0;
-
- case RDMA_CONTROL_RAM_BLOCKS_REQUEST:
- trace_rdma_registration_handle_ram_blocks();
-
- /* Sort our local RAM Block list so it's the same as the source,
- * we can do this since we've filled in a src_index in the list
- * as we received the RAMBlock list earlier.
- */
- qsort(rdma->local_ram_blocks.block,
- rdma->local_ram_blocks.nb_blocks,
- sizeof(RDMALocalBlock), dest_ram_sort_func);
- for (int i = 0; i < local->nb_blocks; i++) {
- local->block[i].index = i;
- }
-
- if (rdma->pin_all) {
- ret = qemu_rdma_reg_whole_ram_blocks(rdma, &err);
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
- }
-
- /*
- * Dest uses this to prepare to transmit the RAMBlock descriptions
- * to the source VM after connection setup.
- * Both sides use the "remote" structure to communicate and update
- * their "local" descriptions with what was sent.
- */
- for (int i = 0; i < local->nb_blocks; i++) {
- rdma->dest_blocks[i].remote_host_addr =
- (uintptr_t)(local->block[i].local_host_addr);
-
- if (rdma->pin_all) {
- rdma->dest_blocks[i].remote_rkey =
local->block[i].mr->rkey;
- }
-
- rdma->dest_blocks[i].offset = local->block[i].offset;
- rdma->dest_blocks[i].length = local->block[i].length;
-
- dest_block_to_network(&rdma->dest_blocks[i]);
- trace_rdma_registration_handle_ram_blocks_loop(
- local->block[i].block_name,
- local->block[i].offset,
- local->block[i].length,
- local->block[i].local_host_addr,
- local->block[i].src_index);
- }
-
- blocks.len = rdma->local_ram_blocks.nb_blocks
- * sizeof(RDMADestBlock);
-
-
- ret = qemu_rdma_post_send_control(rdma,
- (uint8_t *) rdma->dest_blocks, &blocks,
- &err);
-
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
-
- break;
- case RDMA_CONTROL_REGISTER_REQUEST:
- trace_rdma_registration_handle_register(head.repeat);
-
- reg_resp.repeat = head.repeat;
- registers = (RDMARegister *) rdma->wr_data[idx].control_curr;
-
- for (int count = 0; count < head.repeat; count++) {
- uint64_t chunk;
- uint8_t *chunk_start, *chunk_end;
-
- reg = ®isters[count];
- network_to_register(reg);
-
- reg_result = &results[count];
-
- trace_rdma_registration_handle_register_loop(count,
- reg->current_index, reg->key.current_addr,
reg->chunks);
-
- if (reg->current_index >= rdma->local_ram_blocks.nb_blocks) {
- error_report("rdma: 'register' bad block index %u (vs %d)",
- (unsigned int)reg->current_index,
- rdma->local_ram_blocks.nb_blocks);
- goto err;
- }
- block = &(rdma->local_ram_blocks.block[reg->current_index]);
- if (block->is_ram_block) {
- if (block->offset > reg->key.current_addr) {
- error_report("rdma: bad register address for block %s"
- " offset: %" PRIx64 " current_addr: %" PRIx64,
- block->block_name, block->offset,
- reg->key.current_addr);
- goto err;
- }
- host_addr = (block->local_host_addr +
- (reg->key.current_addr - block->offset));
- chunk = ram_chunk_index(block->local_host_addr,
- (uint8_t *) host_addr);
- } else {
- chunk = reg->key.chunk;
- host_addr = block->local_host_addr +
- (reg->key.chunk * (1UL << RDMA_REG_CHUNK_SHIFT));
- /* Check for particularly bad chunk value */
- if (host_addr < (void *)block->local_host_addr) {
- error_report("rdma: bad chunk for block %s"
- " chunk: %" PRIx64,
- block->block_name, reg->key.chunk);
- goto err;
- }
- }
- chunk_start = ram_chunk_start(block, chunk);
- chunk_end = ram_chunk_end(block, chunk + reg->chunks);
- /* avoid "-Waddress-of-packed-member" warning */
- uint32_t tmp_rkey = 0;
- if (qemu_rdma_register_and_get_keys(rdma, block,
- (uintptr_t)host_addr, NULL, &tmp_rkey,
- chunk, chunk_start, chunk_end)) {
- error_report("cannot get rkey");
- goto err;
- }
- reg_result->rkey = tmp_rkey;
-
- reg_result->host_addr = (uintptr_t)block->local_host_addr;
-
- trace_rdma_registration_handle_register_rkey(reg_result->rkey);
-
- result_to_network(reg_result);
- }
-
- ret = qemu_rdma_post_send_control(rdma,
- (uint8_t *) results, ®_resp, &err);
-
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
- break;
- case RDMA_CONTROL_UNREGISTER_REQUEST:
- trace_rdma_registration_handle_unregister(head.repeat);
- unreg_resp.repeat = head.repeat;
- registers = (RDMARegister *) rdma->wr_data[idx].control_curr;
-
- for (int count = 0; count < head.repeat; count++) {
- reg = ®isters[count];
- network_to_register(reg);
-
- trace_rdma_registration_handle_unregister_loop(count,
- reg->current_index, reg->key.chunk);
-
- block = &(rdma->local_ram_blocks.block[reg->current_index]);
-
- ret = ibv_dereg_mr(block->pmr[reg->key.chunk]);
- block->pmr[reg->key.chunk] = NULL;
-
- if (ret != 0) {
- error_report("rdma unregistration chunk failed: %s",
- strerror(errno));
- goto err;
- }
-
- rdma->total_registrations--;
-
-
trace_rdma_registration_handle_unregister_success(reg->key.chunk);
- }
-
- ret = qemu_rdma_post_send_control(rdma, NULL, &unreg_resp, &err);
-
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
- break;
- case RDMA_CONTROL_REGISTER_RESULT:
- error_report("Invalid RESULT message at dest.");
- goto err;
- default:
- error_report("Unknown control message %s",
control_desc(head.type));
- goto err;
- }
- } while (1);
-
-err:
- rdma->errored = true;
- return -1;
-}
-
-/* Destination:
- * Called during the initial RAM load section which lists the
- * RAMBlocks by name. This lets us know the order of the RAMBlocks on
- * the source. We've already built our local RAMBlock list, but not
- * yet sent the list to the source.
- */
-int rdma_block_notification_handle(QEMUFile *f, const char *name)
-{
- int curr;
- int found = -1;
-
- if (!migrate_rdma()) {
- return 0;
- }
-
- RCU_READ_LOCK_GUARD();
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
- RDMAContext *rdma = qatomic_rcu_read(&rioc->rdmain);
-
- if (!rdma) {
- return -1;
- }
-
- /* Find the matching RAMBlock in our local list */
- for (curr = 0; curr < rdma->local_ram_blocks.nb_blocks; curr++) {
- if (!strcmp(rdma->local_ram_blocks.block[curr].block_name, name)) {
- found = curr;
- break;
- }
- }
-
- if (found == -1) {
- error_report("RAMBlock '%s' not found on destination", name);
- return -1;
- }
-
- rdma->local_ram_blocks.block[curr].src_index = rdma->next_src_index;
- trace_rdma_block_notification_handle(name, rdma->next_src_index);
- rdma->next_src_index++;
-
- return 0;
-}
-
-int rdma_registration_start(QEMUFile *f, uint64_t flags)
-{
- if (!migrate_rdma() || migration_in_postcopy()) {
- return 0;
- }
-
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
- RCU_READ_LOCK_GUARD();
- RDMAContext *rdma = qatomic_rcu_read(&rioc->rdmaout);
- if (!rdma) {
- return -1;
- }
-
- if (rdma_errored(rdma)) {
- return -1;
- }
-
- trace_rdma_registration_start(flags);
- qemu_put_be64(f, RAM_SAVE_FLAG_HOOK);
- return qemu_fflush(f);
-}
-
-/*
- * Inform dest that dynamic registrations are done for now.
- * First, flush writes, if any.
- */
-int rdma_registration_stop(QEMUFile *f, uint64_t flags)
-{
- QIOChannelRDMA *rioc;
- Error *err = NULL;
- RDMAContext *rdma;
- RDMAControlHeader head = { .len = 0, .repeat = 1 };
- int ret;
-
- if (!migrate_rdma() || migration_in_postcopy()) {
- return 0;
- }
-
- RCU_READ_LOCK_GUARD();
- rioc = QIO_CHANNEL_RDMA(qemu_file_get_ioc(f));
- rdma = qatomic_rcu_read(&rioc->rdmaout);
- if (!rdma) {
- return -1;
- }
-
- if (rdma_errored(rdma)) {
- return -1;
- }
-
- qemu_fflush(f);
- ret = qemu_rdma_drain_cq(rdma);
-
- if (ret < 0) {
- goto err;
- }
-
- if (flags == RAM_CONTROL_SETUP) {
- RDMAControlHeader resp = {.type = RDMA_CONTROL_RAM_BLOCKS_RESULT };
- RDMALocalBlocks *local = &rdma->local_ram_blocks;
- int reg_result_idx, nb_dest_blocks;
-
- head.type = RDMA_CONTROL_RAM_BLOCKS_REQUEST;
- trace_rdma_registration_stop_ram();
-
- /*
- * Make sure that we parallelize the pinning on both sides.
- * For very large guests, doing this serially takes a really
- * long time, so we have to 'interleave' the pinning locally
- * with the control messages by performing the pinning on this
- * side before we receive the control response from the other
- * side that the pinning has completed.
- */
- ret = qemu_rdma_exchange_send(rdma, &head, NULL, &resp,
- ®_result_idx, rdma->pin_all ?
- qemu_rdma_reg_whole_ram_blocks : NULL,
- &err);
- if (ret < 0) {
- error_report_err(err);
- return -1;
- }
-
- nb_dest_blocks = resp.len / sizeof(RDMADestBlock);
-
- /*
- * The protocol uses two different sets of rkeys (mutually exclusive):
- * 1. One key to represent the virtual address of the entire ram block.
- * (dynamic chunk registration disabled - pin everything with one
rkey.)
- * 2. One to represent individual chunks within a ram block.
- * (dynamic chunk registration enabled - pin individual chunks.)
- *
- * Once the capability is successfully negotiated, the destination
transmits
- * the keys to use (or sends them later) including the virtual
addresses
- * and then propagates the remote ram block descriptions to his local
copy.
- */
-
- if (local->nb_blocks != nb_dest_blocks) {
- error_report("ram blocks mismatch (Number of blocks %d vs %d)",
- local->nb_blocks, nb_dest_blocks);
- error_printf("Your QEMU command line parameters are probably "
- "not identical on both the source and destination.");
- rdma->errored = true;
- return -1;
- }
-
- qemu_rdma_move_header(rdma, reg_result_idx, &resp);
- memcpy(rdma->dest_blocks,
- rdma->wr_data[reg_result_idx].control_curr, resp.len);
- for (int i = 0; i < nb_dest_blocks; i++) {
- network_to_dest_block(&rdma->dest_blocks[i]);
-
- /* We require that the blocks are in the same order */
- if (rdma->dest_blocks[i].length != local->block[i].length) {
- error_report("Block %s/%d has a different length %" PRIu64
- "vs %" PRIu64,
- local->block[i].block_name, i,
- local->block[i].length,
- rdma->dest_blocks[i].length);
- rdma->errored = true;
- return -1;
- }
- local->block[i].remote_host_addr =
- rdma->dest_blocks[i].remote_host_addr;
- local->block[i].remote_rkey = rdma->dest_blocks[i].remote_rkey;
- }
- }
-
- trace_rdma_registration_stop(flags);
-
- head.type = RDMA_CONTROL_REGISTER_FINISHED;
- ret = qemu_rdma_exchange_send(rdma, &head, NULL, NULL, NULL, NULL, &err);
-
- if (ret < 0) {
- error_report_err(err);
- goto err;
- }
-
- return 0;
-err:
- rdma->errored = true;
- return -1;
-}
-
-static void qio_channel_rdma_finalize(Object *obj)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(obj);
- if (rioc->rdmain) {
- qemu_rdma_cleanup(rioc->rdmain);
- g_free(rioc->rdmain);
- rioc->rdmain = NULL;
- }
- if (rioc->rdmaout) {
- qemu_rdma_cleanup(rioc->rdmaout);
- g_free(rioc->rdmaout);
- rioc->rdmaout = NULL;
- }
-}
-
-static void qio_channel_rdma_class_init(ObjectClass *klass,
- void *class_data G_GNUC_UNUSED)
-{
- QIOChannelClass *ioc_klass = QIO_CHANNEL_CLASS(klass);
-
- ioc_klass->io_writev = qio_channel_rdma_writev;
- ioc_klass->io_readv = qio_channel_rdma_readv;
- ioc_klass->io_set_blocking = qio_channel_rdma_set_blocking;
- ioc_klass->io_close = qio_channel_rdma_close;
- ioc_klass->io_create_watch = qio_channel_rdma_create_watch;
- ioc_klass->io_set_aio_fd_handler = qio_channel_rdma_set_aio_fd_handler;
- ioc_klass->io_shutdown = qio_channel_rdma_shutdown;
-}
-
-static const TypeInfo qio_channel_rdma_info = {
- .parent = TYPE_QIO_CHANNEL,
- .name = TYPE_QIO_CHANNEL_RDMA,
- .instance_size = sizeof(QIOChannelRDMA),
- .instance_finalize = qio_channel_rdma_finalize,
- .class_init = qio_channel_rdma_class_init,
-};
-
-static void qio_channel_rdma_register_types(void)
-{
- type_register_static(&qio_channel_rdma_info);
-}
-
-type_init(qio_channel_rdma_register_types);
-
-static QEMUFile *rdma_new_input(RDMAContext *rdma)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA));
-
- rioc->file = qemu_file_new_input(QIO_CHANNEL(rioc));
- rioc->rdmain = rdma;
- rioc->rdmaout = rdma->return_path;
-
- return rioc->file;
-}
-
-static QEMUFile *rdma_new_output(RDMAContext *rdma)
-{
- QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA));
-
- rioc->file = qemu_file_new_output(QIO_CHANNEL(rioc));
- rioc->rdmaout = rdma;
- rioc->rdmain = rdma->return_path;
-
- return rioc->file;
-}
-
-static void rdma_accept_incoming_migration(void *opaque)
-{
- RDMAContext *rdma = opaque;
- QEMUFile *f;
-
- trace_qemu_rdma_accept_incoming_migration();
- if (qemu_rdma_accept(rdma) < 0) {
- error_report("RDMA ERROR: Migration initialization failed");
- return;
- }
-
- trace_qemu_rdma_accept_incoming_migration_accepted();
-
- if (rdma->is_return_path) {
- return;
- }
-
- f = rdma_new_input(rdma);
- if (f == NULL) {
- error_report("RDMA ERROR: could not open RDMA for input");
- qemu_rdma_cleanup(rdma);
- return;
- }
-
- rdma->migration_started_on_destination = 1;
- migration_fd_process_incoming(f);
-}
-
-void rdma_start_incoming_migration(InetSocketAddress *host_port,
- Error **errp)
-{
- MigrationState *s = migrate_get_current();
- int ret;
- RDMAContext *rdma;
-
- trace_rdma_start_incoming_migration();
-
- /* Avoid ram_block_discard_disable(), cannot change during migration. */
- if (ram_block_discard_is_required()) {
- error_setg(errp, "RDMA: cannot disable RAM discard");
- return;
- }
-
- rdma = qemu_rdma_data_init(host_port, errp);
- if (rdma == NULL) {
- goto err;
- }
-
- ret = qemu_rdma_dest_init(rdma, errp);
- if (ret < 0) {
- goto err;
- }
-
- trace_rdma_start_incoming_migration_after_dest_init();
-
- ret = rdma_listen(rdma->listen_id, 5);
-
- if (ret < 0) {
- error_setg(errp, "RDMA ERROR: listening on socket!");
- goto cleanup_rdma;
- }
-
- trace_rdma_start_incoming_migration_after_rdma_listen();
- s->rdma_migration = true;
- qemu_set_fd_handler(rdma->channel->fd, rdma_accept_incoming_migration,
- NULL, (void *)(intptr_t)rdma);
- return;
-
-cleanup_rdma:
- qemu_rdma_cleanup(rdma);
-err:
- if (rdma) {
- g_free(rdma->host);
- }
- g_free(rdma);
-}
-
-void rdma_start_outgoing_migration(void *opaque,
- InetSocketAddress *host_port, Error **errp)
-{
- MigrationState *s = opaque;
- RDMAContext *rdma_return_path = NULL;
- RDMAContext *rdma;
- int ret;
-
- /* Avoid ram_block_discard_disable(), cannot change during migration. */
- if (ram_block_discard_is_required()) {
- error_setg(errp, "RDMA: cannot disable RAM discard");
- return;
- }
-
- rdma = qemu_rdma_data_init(host_port, errp);
- if (rdma == NULL) {
- goto err;
- }
-
- ret = qemu_rdma_source_init(rdma, migrate_rdma_pin_all(), errp);
-
- if (ret < 0) {
- goto err;
- }
-
- trace_rdma_start_outgoing_migration_after_rdma_source_init();
- ret = qemu_rdma_connect(rdma, false, errp);
-
- if (ret < 0) {
- goto err;
- }
-
- /* RDMA postcopy need a separate queue pair for return path */
- if (migrate_postcopy() || migrate_return_path()) {
- rdma_return_path = qemu_rdma_data_init(host_port, errp);
-
- if (rdma_return_path == NULL) {
- goto return_path_err;
- }
-
- ret = qemu_rdma_source_init(rdma_return_path,
- migrate_rdma_pin_all(), errp);
-
- if (ret < 0) {
- goto return_path_err;
- }
-
- ret = qemu_rdma_connect(rdma_return_path, true, errp);
-
- if (ret < 0) {
- goto return_path_err;
- }
-
- rdma->return_path = rdma_return_path;
- rdma_return_path->return_path = rdma;
- rdma_return_path->is_return_path = true;
- }
-
- trace_rdma_start_outgoing_migration_after_rdma_connect();
-
- s->to_dst_file = rdma_new_output(rdma);
- s->rdma_migration = true;
- migrate_fd_connect(s, NULL);
- return;
-return_path_err:
- qemu_rdma_cleanup(rdma);
-err:
- g_free(rdma);
- g_free(rdma_return_path);
-}
diff --git a/migration/savevm.c b/migration/savevm.c
index 388d7af7cd..939d35d69e 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2970,7 +2970,7 @@ int qemu_loadvm_state(QEMUFile *f)
/* We've got to be careful; if we don't read the data and just shut the fd
* then the sender can error if we close while it's still sending.
- * We also mustn't read data that isn't there; some transports (RDMA)
+ * We also mustn't read data that isn't there; some transports
* will stall waiting for that data when the source has already closed.
*/
if (ret == 0 && should_send_vmdesc()) {
diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c
index b0f948d337..f84a0dc523 100644
--- a/monitor/qmp-cmds.c
+++ b/monitor/qmp-cmds.c
@@ -31,7 +31,6 @@
#include "qapi/type-helpers.h"
#include "hw/mem/memory-device.h"
#include "hw/intc/intc.h"
-#include "hw/rdma/rdma.h"
NameInfo *qmp_query_name(Error **errp)
{
diff --git a/Kconfig.host b/Kconfig.host
index f496475f8e..f6a2a131e6 100644
--- a/Kconfig.host
+++ b/Kconfig.host
@@ -35,9 +35,6 @@ config VHOST_KERNEL
config VIRTFS
bool
-config PVRDMA
- bool
-
config MULTIPROCESS_ALLOWED
bool
imply MULTIPROCESS
diff --git a/contrib/rdmacm-mux/meson.build b/contrib/rdmacm-mux/meson.build
deleted file mode 100644
index 36c9c89630..0000000000
--- a/contrib/rdmacm-mux/meson.build
+++ /dev/null
@@ -1,7 +0,0 @@
-if have_pvrdma
- # FIXME: broken on big endian architectures
- executable('rdmacm-mux', files('main.c'), genh,
- dependencies: [glib, libumad],
- build_by_default: false,
- install: false)
-endif
diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index ad1b1306e3..20a9835ea8 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -182,19 +182,6 @@ SRST
Show PIC state.
ERST
- {
- .name = "rdma",
- .args_type = "",
- .params = "",
- .help = "show RDMA state",
- .cmd_info_hrt = qmp_x_query_rdma,
- },
-
-SRST
- ``info rdma``
- Show RDMA state.
-ERST
-
{
.name = "pci",
.args_type = "",
diff --git a/hw/Kconfig b/hw/Kconfig
index 2c00936c28..32f876deb0 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -29,7 +29,6 @@ source pci-bridge/Kconfig
source pci-host/Kconfig
source pcmcia/Kconfig
source pci/Kconfig
-source rdma/Kconfig
source remote/Kconfig
source rtc/Kconfig
source scsi/Kconfig
diff --git a/hw/meson.build b/hw/meson.build
index 463d702683..3049a6fab0 100644
--- a/hw/meson.build
+++ b/hw/meson.build
@@ -28,7 +28,6 @@ subdir('pci')
subdir('pci-bridge')
subdir('pci-host')
subdir('pcmcia')
-subdir('rdma')
subdir('rtc')
subdir('scsi')
subdir('sd')
diff --git a/hw/rdma/Kconfig b/hw/rdma/Kconfig
deleted file mode 100644
index 840320bdc0..0000000000
--- a/hw/rdma/Kconfig
+++ /dev/null
@@ -1,3 +0,0 @@
-config VMW_PVRDMA
- default y if PCI_DEVICES
- depends on PVRDMA && MSI_NONBROKEN && VMXNET3_PCI
diff --git a/hw/rdma/meson.build b/hw/rdma/meson.build
deleted file mode 100644
index 363c9b8c83..0000000000
--- a/hw/rdma/meson.build
+++ /dev/null
@@ -1,12 +0,0 @@
-system_ss.add(when: 'CONFIG_VMW_PVRDMA', if_true: files(
- 'rdma.c',
- 'rdma_backend.c',
- 'rdma_utils.c',
- 'vmw/pvrdma_qp_ops.c',
-))
-specific_ss.add(when: 'CONFIG_VMW_PVRDMA', if_true: files(
- 'rdma_rm.c',
- 'vmw/pvrdma_cmd.c',
- 'vmw/pvrdma_dev_ring.c',
- 'vmw/pvrdma_main.c',
-))
diff --git a/hw/rdma/trace-events b/hw/rdma/trace-events
deleted file mode 100644
index c23175120e..0000000000
--- a/hw/rdma/trace-events
+++ /dev/null
@@ -1,31 +0,0 @@
-# See docs/devel/tracing.rst for syntax documentation.
-
-# rdma_backend.c
-rdma_check_dev_attr(const char *name, int max_bk, int max_fe) "%s: be=%d,
fe=%d"
-rdma_create_ah_cache_hit(uint64_t subnet, uint64_t if_id)
"subnet=0x%"PRIx64",if_id=0x%"PRIx64
-rdma_create_ah_cache_miss(uint64_t subnet, uint64_t if_id)
"subnet=0x%"PRIx64",if_id=0x%"PRIx64
-rdma_poll_cq(int ne, void *ibcq) "Got %d completion(s) from cq %p"
-rdmacm_mux(const char *title, int msg_type, int op_code) "%s: msg_type=%d,
op_code=%d"
-rdmacm_mux_check_op_status(int msg_type, int op_code, int err_code) "resp:
msg_type=%d, op_code=%d, err_code=%d"
-rdma_mad_message(const char *title, int len, char *data) "mad %s (%d): %s"
-rdma_backend_rc_qp_state_init(uint32_t qpn) "RC QP 0x%x switch to INIT"
-rdma_backend_ud_qp_state_init(uint32_t qpn, uint32_t qkey) "UD QP 0x%x switch
to INIT, qkey=0x%x"
-rdma_backend_rc_qp_state_rtr(uint32_t qpn, uint64_t subnet, uint64_t ifid,
uint8_t sgid_idx, uint32_t dqpn, uint32_t rq_psn) "RC QP 0x%x switch to RTR,
subnet = 0x%"PRIx64", ifid = 0x%"PRIx64 ", sgid_idx=%d, dqpn=0x%x, rq_psn=0x%x"
-rdma_backend_ud_qp_state_rtr(uint32_t qpn, uint32_t qkey) "UD QP 0x%x switch
to RTR, qkey=0x%x"
-rdma_backend_rc_qp_state_rts(uint32_t qpn, uint32_t sq_psn) "RC QP 0x%x switch
to RTS, sq_psn=0x%x, "
-rdma_backend_ud_qp_state_rts(uint32_t qpn, uint32_t sq_psn, uint32_t qkey) "UD
QP 0x%x switch to RTS, sq_psn=0x%x, qkey=0x%x"
-rdma_backend_get_gid_index(uint64_t subnet, uint64_t ifid, int gid_idx)
"subnet=0x%"PRIx64", ifid=0x%"PRIx64 ", gid_idx=%d"
-rdma_backend_gid_change(const char *op, uint64_t subnet, uint64_t ifid) "%s
subnet=0x%"PRIx64", ifid=0x%"PRIx64
-
-# rdma_rm.c
-rdma_res_tbl_get(char *name, uint32_t handle) "tbl %s, handle %d"
-rdma_res_tbl_alloc(char *name, uint32_t handle) "tbl %s, handle %d"
-rdma_res_tbl_dealloc(char *name, uint32_t handle) "tbl %s, handle %d"
-rdma_rm_alloc_mr(uint32_t mr_handle, void *host_virt, uint64_t guest_start,
uint64_t guest_length, int access_flags) "mr_handle=%d, host_virt=%p,
guest_start=0x%"PRIx64", length=%" PRId64", access_flags=0x%x"
-rdma_rm_dealloc_mr(uint32_t mr_handle, uint64_t guest_start) "mr_handle=%d,
guest_start=0x%"PRIx64
-rdma_rm_alloc_qp(uint32_t rm_qpn, uint32_t backend_qpn, uint8_t qp_type)
"rm_qpn=%d, backend_qpn=0x%x, qp_type=%d"
-rdma_rm_modify_qp(uint32_t qpn, uint32_t attr_mask, int qp_state, uint8_t
sgid_idx) "qpn=0x%x, attr_mask=0x%x, qp_state=%d, sgid_idx=%d"
-
-# rdma_utils.c
-rdma_pci_dma_map(uint64_t addr, void *vaddr, uint64_t len) "0x%"PRIx64" -> %p
(len=%" PRIu64")"
-rdma_pci_dma_unmap(void *vaddr) "%p"
diff --git a/hw/rdma/vmw/trace-events b/hw/rdma/vmw/trace-events
deleted file mode 100644
index a6c77e1e10..0000000000
--- a/hw/rdma/vmw/trace-events
+++ /dev/null
@@ -1,17 +0,0 @@
-# See docs/devel/tracing.rst for syntax documentation.
-
-# pvrdma_main.c
-pvrdma_regs_read(uint64_t addr, uint64_t val)
"pvrdma.regs[0x%"PRIx64"]=0x%"PRIx64
-pvrdma_regs_write(uint64_t addr, uint64_t val, const char *reg_name, const
char *val_name) "pvrdma.regs[0x%"PRIx64"]=0x%"PRIx64" (%s %s)"
-pvrdma_uar_write(uint64_t addr, uint64_t val, const char *reg_name, const char
*val_name, int val1, int val2) "uar[0x%"PRIx64"]=0x%"PRIx64" (cls=%s, op=%s,
obj=%d, val=%d)"
-
-# pvrdma_cmd.c
-pvrdma_map_to_pdir_host_virt(void *vfirst, void *vremaped) "mremap %p -> %p"
-pvrdma_map_to_pdir_next_page(int page_idx, void *vnext, void *vremaped)
"mremap [%d] %p -> %p"
-pvrdma_exec_cmd(int cmd, int err) "cmd=%d, err=%d"
-
-# pvrdma_dev_ring.c
-pvrdma_ring_next_elem_read_no_data(char *ring_name) "pvrdma_ring %s is empty"
-
-# pvrdma_qp_ops.c
-pvrdma_post_cqe(uint32_t cq_handle, int notify, uint64_t wr_id, uint64_t qpn,
uint32_t op_code, uint32_t status, uint32_t byte_len, uint32_t src_qp, uint32_t
wc_flags, uint32_t vendor_err) "cq_handle=%d, notify=%d, wr_id=0x%"PRIx64",
qpn=0x%"PRIx64", opcode=%d, status=%d, byte_len=%d, src_qp=%d, wc_flags=%d,
vendor_err=%d"
diff --git a/meson_options.txt b/meson_options.txt
index 0a99a059ec..79b69d4286 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -196,10 +196,6 @@ option('rbd', type : 'feature', value : 'auto',
description: 'Ceph block device driver')
option('opengl', type : 'feature', value : 'auto',
description: 'OpenGL support')
-option('rdma', type : 'feature', value : 'auto',
- description: 'Enable RDMA-based migration')
-option('pvrdma', type : 'feature', value : 'auto',
- description: 'Enable PVRDMA support')
option('gtk', type : 'feature', value : 'auto',
description: 'GTK+ user interface')
option('sdl', type : 'feature', value : 'auto',
diff --git a/migration/meson.build b/migration/meson.build
index 1eeb915ff6..e2cd92c01f 100644
--- a/migration/meson.build
+++ b/migration/meson.build
@@ -36,7 +36,6 @@ if get_option('replication').allowed()
system_ss.add(files('colo-failover.c', 'colo.c'))
endif
-system_ss.add(when: rdma, if_true: files('rdma.c'))
if get_option('live_block_migration').allowed()
system_ss.add(files('block.c'))
endif
diff --git a/migration/trace-events b/migration/trace-events
index f0e1cb80c7..7db3a5194f 100644
--- a/migration/trace-events
+++ b/migration/trace-events
@@ -193,7 +193,7 @@ process_incoming_migration_co_postcopy_end_main(void) ""
postcopy_preempt_enabled(bool value) "%d"
# migration-stats
-migration_transferred_bytes(uint64_t qemu_file, uint64_t multifd, uint64_t
rdma) "qemu_file %" PRIu64 " multifd %" PRIu64 " RDMA %" PRIu64
+migration_transferred_bytes(uint64_t qemu_file, uint64_t multifd) "qemu_file
%" PRIu64 " multifd %" PRIu64
# channel.c
migration_set_incoming_channel(void *ioc, const char *ioctype) "ioc=%p
ioctype=%s"
@@ -204,72 +204,6 @@ migrate_state_too_big(void) ""
migrate_global_state_post_load(const char *state) "loaded state: %s"
migrate_global_state_pre_save(const char *state) "saved state: %s"
-# rdma.c
-qemu_rdma_accept_incoming_migration(void) ""
-qemu_rdma_accept_incoming_migration_accepted(void) ""
-qemu_rdma_accept_pin_state(bool pin) "%d"
-qemu_rdma_accept_pin_verbsc(void *verbs) "Verbs context after listen: %p"
-qemu_rdma_block_for_wrid_miss(uint64_t wcomp, uint64_t req) "A Wanted wrid %"
PRIu64 " but got %" PRIu64
-qemu_rdma_cleanup_disconnect(void) ""
-qemu_rdma_close(void) ""
-qemu_rdma_connect_pin_all_requested(void) ""
-qemu_rdma_connect_pin_all_outcome(bool pin) "%d"
-qemu_rdma_dest_init_trying(const char *host, const char *ip) "%s => %s"
-qemu_rdma_dump_id_failed(const char *who) "%s RDMA Device opened, but can't
query port information"
-qemu_rdma_dump_id(const char *who, const char *name, const char *dev_name,
const char *dev_path, const char *ibdev_path, int transport, const char
*transport_name) "%s RDMA Device opened: kernel name %s uverbs device name %s,
infiniband_verbs class device path %s, infiniband class device path %s,
transport: (%d) %s"
-qemu_rdma_dump_gid(const char *who, const char *src, const char *dst) "%s
Source GID: %s, Dest GID: %s"
-qemu_rdma_exchange_get_response_start(const char *desc) "CONTROL: %s
receiving..."
-qemu_rdma_exchange_get_response_none(const char *desc, int type) "Surprise:
got %s (%d)"
-qemu_rdma_exchange_send_issue_callback(void) ""
-qemu_rdma_exchange_send_waiting(const char *desc) "Waiting for response %s"
-qemu_rdma_exchange_send_received(const char *desc) "Response %s received."
-qemu_rdma_fill(size_t control_len, size_t size) "RDMA %zd of %zd bytes already
in buffer"
-qemu_rdma_init_ram_blocks(int blocks) "Allocated %d local ram block structures"
-qemu_rdma_poll_recv(uint64_t comp, int64_t id, int sent) "completion %" PRIu64
" received (%" PRId64 ") left %d"
-qemu_rdma_poll_write(uint64_t comp, int left, uint64_t block, uint64_t chunk,
void *local, void *remote) "completions %" PRIu64 " left %d, block %" PRIu64 ",
chunk: %" PRIu64 " %p %p"
-qemu_rdma_poll_other(uint64_t comp, int left) "other completion %" PRIu64 "
received left %d"
-qemu_rdma_post_send_control(const char *desc) "CONTROL: sending %s.."
-qemu_rdma_register_and_get_keys(uint64_t len, void *start) "Registering %"
PRIu64 " bytes @ %p"
-qemu_rdma_register_odp_mr(const char *name) "Try to register On-Demand Paging
memory region: %s"
-qemu_rdma_advise_mr(const char *name, uint32_t len, uint64_t addr, const char
*res) "Try to advise block %s prefetch at %" PRIu32 "@0x%" PRIx64 ": %s"
-qemu_rdma_resolve_host_trying(const char *host, const char *ip) "Trying %s =>
%s"
-qemu_rdma_signal_unregister_append(uint64_t chunk, int pos) "Appending
unregister chunk %" PRIu64 " at position %d"
-qemu_rdma_signal_unregister_already(uint64_t chunk) "Unregister chunk %"
PRIu64 " already in queue"
-qemu_rdma_unregister_waiting_inflight(uint64_t chunk) "Cannot unregister
inflight chunk: %" PRIu64
-qemu_rdma_unregister_waiting_proc(uint64_t chunk, int pos) "Processing
unregister for chunk: %" PRIu64 " at position %d"
-qemu_rdma_unregister_waiting_send(uint64_t chunk) "Sending unregister for
chunk: %" PRIu64
-qemu_rdma_unregister_waiting_complete(uint64_t chunk) "Unregister for chunk:
%" PRIu64 " complete."
-qemu_rdma_write_flush(int sent) "sent total: %d"
-qemu_rdma_write_one_block(int count, int block, uint64_t chunk, uint64_t
current, uint64_t len, int nb_sent, int nb_chunks) "(%d) Not clobbering: block:
%d chunk %" PRIu64 " current %" PRIu64 " len %" PRIu64 " %d %d"
-qemu_rdma_write_one_post(uint64_t chunk, long addr, long remote, uint32_t len)
"Posting chunk: %" PRIu64 ", addr: 0x%lx remote: 0x%lx, bytes %" PRIu32
-qemu_rdma_write_one_queue_full(void) ""
-qemu_rdma_write_one_recvregres(int mykey, int theirkey, uint64_t chunk)
"Received registration result: my key: 0x%x their key 0x%x, chunk %" PRIu64
-qemu_rdma_write_one_sendreg(uint64_t chunk, int len, int index, int64_t
offset) "Sending registration request chunk %" PRIu64 " for %d bytes, index:
%d, offset: %" PRId64
-qemu_rdma_write_one_top(uint64_t chunks, uint64_t size) "Writing %" PRIu64 "
chunks, (%" PRIu64 " MB)"
-qemu_rdma_write_one_zero(uint64_t chunk, int len, int index, int64_t offset)
"Entire chunk is zero, sending compress: %" PRIu64 " for %d bytes, index: %d,
offset: %" PRId64
-rdma_add_block(const char *block_name, int block, uint64_t addr, uint64_t
offset, uint64_t len, uint64_t end, uint64_t bits, int chunks) "Added Block:
'%s':%d, addr: %" PRIu64 ", offset: %" PRIu64 " length: %" PRIu64 " end: %"
PRIu64 " bits %" PRIu64 " chunks %d"
-rdma_block_notification_handle(const char *name, int index) "%s at %d"
-rdma_delete_block(void *block, uint64_t addr, uint64_t offset, uint64_t len,
uint64_t end, uint64_t bits, int chunks) "Deleted Block: %p, addr: %" PRIu64 ",
offset: %" PRIu64 " length: %" PRIu64 " end: %" PRIu64 " bits %" PRIu64 "
chunks %d"
-rdma_registration_handle_compress(int64_t length, int index, int64_t offset)
"Zapping zero chunk: %" PRId64 " bytes, index %d, offset %" PRId64
-rdma_registration_handle_finished(void) ""
-rdma_registration_handle_ram_blocks(void) ""
-rdma_registration_handle_ram_blocks_loop(const char *name, uint64_t offset,
uint64_t length, void *local_host_addr, unsigned int src_index) "%s: @0x%"
PRIx64 "/%" PRIu64 " host:@%p src_index: %u"
-rdma_registration_handle_register(int requests) "%d requests"
-rdma_registration_handle_register_loop(int req, int index, uint64_t addr,
uint64_t chunks) "Registration request (%d): index %d, current_addr %" PRIu64 "
chunks: %" PRIu64
-rdma_registration_handle_register_rkey(int rkey) "0x%x"
-rdma_registration_handle_unregister(int requests) "%d requests"
-rdma_registration_handle_unregister_loop(int count, int index, uint64_t chunk)
"Unregistration request (%d): index %d, chunk %" PRIu64
-rdma_registration_handle_unregister_success(uint64_t chunk) "%" PRIu64
-rdma_registration_handle_wait(void) ""
-rdma_registration_start(uint64_t flags) "%" PRIu64
-rdma_registration_stop(uint64_t flags) "%" PRIu64
-rdma_registration_stop_ram(void) ""
-rdma_start_incoming_migration(void) ""
-rdma_start_incoming_migration_after_dest_init(void) ""
-rdma_start_incoming_migration_after_rdma_listen(void) ""
-rdma_start_outgoing_migration_after_rdma_connect(void) ""
-rdma_start_outgoing_migration_after_rdma_source_init(void) ""
-
# postcopy-ram.c
postcopy_discard_send_finish(const char *ramblock, int nwords, int ncmds) "%s
mask words sent=%d in %d commands"
postcopy_discard_send_range(const char *ramblock, unsigned long start,
unsigned long length) "%s:%lx/%lx"
diff --git a/qapi/meson.build b/qapi/meson.build
index 375d564277..c92af6e063 100644
--- a/qapi/meson.build
+++ b/qapi/meson.build
@@ -62,7 +62,6 @@ if have_system
'cryptodev',
'qdev',
'pci',
- 'rdma',
'rocker',
'tpm',
]
diff --git a/qemu-options.hx b/qemu-options.hx
index 7fd1713fa8..4f390c33ef 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4759,7 +4759,6 @@ ERST
DEF("incoming", HAS_ARG, QEMU_OPTION_incoming, \
"-incoming tcp:[host]:port[,to=maxport][,ipv4=on|off][,ipv6=on|off]\n" \
- "-incoming rdma:host:port[,ipv4=on|off][,ipv6=on|off]\n" \
"-incoming unix:socketpath\n" \
" prepare for incoming migration, listen on\n" \
" specified protocol and socket address\n" \
@@ -4773,8 +4772,6 @@ DEF("incoming", HAS_ARG, QEMU_OPTION_incoming, \
QEMU_ARCH_ALL)
SRST
``-incoming tcp:[host]:port[,to=maxport][,ipv4=on|off][,ipv6=on|off]``
- \
-``-incoming rdma:host:port[,ipv4=on|off][,ipv6=on|off]``
Prepare for incoming migration, listen on a given tcp port.
``-incoming unix:socketpath``
@@ -5113,9 +5110,6 @@ SRST
allows a co-operating external process to access the QEMU memory
region.
- The ``share`` is also required for pvrdma devices due to
- limitations in the RDMA API provided by Linux.
-
Setting share=on might affect the ability to configure NUMA
bindings for the memory backend under some circumstances, see
Documentation/vm/numa\_memory\_policy.txt on the Linux kernel
diff --git a/scripts/ci/org.centos/stream/8/x86_64/configure
b/scripts/ci/org.centos/stream/8/x86_64/configure
index 76781f17f4..868db665f6 100755
--- a/scripts/ci/org.centos/stream/8/x86_64/configure
+++ b/scripts/ci/org.centos/stream/8/x86_64/configure
@@ -99,7 +99,6 @@
--disable-opengl \
--disable-parallels \
--disable-pie \
---disable-pvrdma \
--disable-qcow1 \
--disable-qed \
--disable-qom-cast-debug \
diff --git a/scripts/ci/setup/build-environment.yml
b/scripts/ci/setup/build-environment.yml
index f344d1a850..8a6098215b 100644
--- a/scripts/ci/setup/build-environment.yml
+++ b/scripts/ci/setup/build-environment.yml
@@ -81,8 +81,6 @@
- libglusterfs-dev
- libgnutls28-dev
- libgtk-3-dev
- - libibumad-dev
- - libibverbs-dev
- libiscsi-dev
- libjemalloc-dev
- libjpeg-turbo8-dev
diff --git a/scripts/coverity-scan/run-coverity-scan
b/scripts/coverity-scan/run-coverity-scan
index 43cf770f5e..3dd14c3cc4 100755
--- a/scripts/coverity-scan/run-coverity-scan
+++ b/scripts/coverity-scan/run-coverity-scan
@@ -426,7 +426,7 @@ echo "Configuring..."
--enable-libusb --enable-usb-redir \
--enable-libiscsi --enable-libnfs --enable-seccomp \
--enable-tpm --enable-libssh --enable-lzo --enable-snappy --enable-bzip2 \
- --enable-numa --enable-rdma --enable-smartcard --enable-virglrenderer \
+ --enable-numa --enable-smartcard --enable-virglrenderer \
--enable-mpath --enable-glusterfs \
--enable-virtfs --enable-zstd
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 680fa3f581..52c34598ba 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -163,12 +163,10 @@ meson_options_help() {
printf "%s\n" ' pixman pixman support'
printf "%s\n" ' plugins TCG plugins via shared library loading'
printf "%s\n" ' png PNG support with libpng'
- printf "%s\n" ' pvrdma Enable PVRDMA support'
printf "%s\n" ' qcow1 qcow1 image format support'
printf "%s\n" ' qed qed image format support'
printf "%s\n" ' qga-vss build QGA VSS support (broken with MinGW)'
printf "%s\n" ' rbd Ceph block device driver'
- printf "%s\n" ' rdma Enable RDMA-based migration'
printf "%s\n" ' replication replication support'
printf "%s\n" ' rutabaga-gfx rutabaga_gfx support'
printf "%s\n" ' sdl SDL user interface'
@@ -428,8 +426,6 @@ _meson_option_parse() {
--enable-png) printf "%s" -Dpng=enabled ;;
--disable-png) printf "%s" -Dpng=disabled ;;
--prefix=*) quote_sh "-Dprefix=$2" ;;
- --enable-pvrdma) printf "%s" -Dpvrdma=enabled ;;
- --disable-pvrdma) printf "%s" -Dpvrdma=disabled ;;
--enable-qcow1) printf "%s" -Dqcow1=enabled ;;
--disable-qcow1) printf "%s" -Dqcow1=disabled ;;
--enable-qed) printf "%s" -Dqed=enabled ;;
@@ -445,8 +441,6 @@ _meson_option_parse() {
--disable-qom-cast-debug) printf "%s" -Dqom_cast_debug=false ;;
--enable-rbd) printf "%s" -Drbd=enabled ;;
--disable-rbd) printf "%s" -Drbd=disabled ;;
- --enable-rdma) printf "%s" -Drdma=enabled ;;
- --disable-rdma) printf "%s" -Drdma=disabled ;;
--enable-relocatable) printf "%s" -Drelocatable=true ;;
--disable-relocatable) printf "%s" -Drelocatable=false ;;
--enable-replication) printf "%s" -Dreplication=enabled ;;
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index a0006eec6f..73c292bbac 100755
--- a/scripts/update-linux-headers.sh
+++ b/scripts/update-linux-headers.sh
@@ -55,7 +55,6 @@ cp_portable() {
-e 'linux/if_ether' \
-e 'input-event-codes' \
-e 'sys/' \
- -e 'pvrdma_verbs' \
-e 'drm.h' \
-e 'limits' \
-e 'linux/const' \
@@ -226,32 +225,6 @@ mkdir -p "$output/include/standard-headers/drm"
cp_portable "$tmpdir/include/drm/drm_fourcc.h" \
"$output/include/standard-headers/drm"
-rm -rf "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"
-mkdir -p "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma"
-
-# Remove the unused functions from pvrdma_verbs.h avoiding the unnecessary
-# import of several infiniband/networking/other headers
-tmp_pvrdma_verbs="$tmpdir/pvrdma_verbs.h"
-# Parse the entire file instead of single lines to match
-# function declarations expanding over multiple lines
-# and strip the declarations starting with pvrdma prefix.
-sed -e '1h;2,$H;$!d;g' -e 's/[^};]*pvrdma[^(| ]*([^)]*);//g' \
- "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h" > \
- "$tmp_pvrdma_verbs";
-
-for i in "$linux/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h" \
- "$tmp_pvrdma_verbs"; do \
- cp_portable "$i" \
- "$output/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/"
-done
-
-rm -rf "$output/include/standard-headers/rdma/"
-mkdir -p "$output/include/standard-headers/rdma/"
-for i in "$tmpdir/include/rdma/vmw_pvrdma-abi.h"; do
- cp_portable "$i" \
- "$output/include/standard-headers/rdma/"
-done
-
cat <<EOF >$output/include/standard-headers/linux/types.h
/* For QEMU all types are already defined via osdep.h, so this
* header does not need to do anything.
diff --git a/tests/lcitool/projects/qemu.yml b/tests/lcitool/projects/qemu.yml
index 149b15de57..0190bde8b1 100644
--- a/tests/lcitool/projects/qemu.yml
+++ b/tests/lcitool/projects/qemu.yml
@@ -48,8 +48,6 @@ packages:
- libfdt
- libffi
- libgcrypt
- - libibumad
- - libibverbs
- libiscsi
- libjemalloc
- libjpeg
diff --git a/tests/migration/guestperf/engine.py
b/tests/migration/guestperf/engine.py
index 608d7270f6..a704419082 100644
--- a/tests/migration/guestperf/engine.py
+++ b/tests/migration/guestperf/engine.py
@@ -41,7 +41,7 @@ def __init__(self, binary, dst_host, kernel, initrd,
transport="tcp",
self._dst_host = dst_host # Hostname of target host
self._kernel = kernel # Path to kernel image
self._initrd = initrd # Path to stress initrd
- self._transport = transport # 'unix' or 'tcp' or 'rdma'
+ self._transport = transport # 'unix' or 'tcp'
self._sleep = sleep
self._verbose = verbose
self._debug = debug
@@ -427,8 +427,6 @@ def run(self, hardware, scenario, result_dir=os.getcwd()):
if self._transport == "tcp":
uri = "tcp:%s:9000" % self._dst_host
- elif self._transport == "rdma":
- uri = "rdma:%s:9000" % self._dst_host
elif self._transport == "unix":
if self._dst_host != "localhost":
raise Exception("Running use unix migration transport for
non-local host")
--
2.41.0
- [PATCH-for-9.1] rdma: Remove RDMA subsystem and pvrdma device,
Philippe Mathieu-Daudé <=