8 Commits

Author SHA1 Message Date
Pavan Nikhilesh
acec04c4b2 build: disable experimental API check internally
Remove setting ALLOW_EXPERIMENTAL_API individually for each Makefile and
meson.build. Instead, enable ALLOW_EXPERIMENTAL_API flag across app, lib
and drivers.
This changes reduces the clutter across the project while still
maintaining the functionality of ALLOW_EXPERIMENTAL_API i.e. warning
external applications about experimental API usage.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2020-04-14 16:22:34 +02:00
Matan Azrad
75dd0ae917 vdpa/mlx5: disable RoCE
In order to support virtio queue creation by the FW, RoCE mode
should be disabled in the device.

Do it by netlink which is like the devlink tool commands:
	1. devlink dev param set pci/[pci] name enable_roce value false
	   cmode driverinit
	2. devlink dev reload pci/[pci]
Or by sysfs which is like:
	echo 0 >  /sys/bus/pci/devices/[pci]/roce_enable

The IB device is matched again after ROCE disabling.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
9d39e57f21 vdpa/mlx5: support live migration
Add support for live migration feature by the HW:
	Create a single Mkey that maps the memory address space of the
		VHOST live migration log file.
	Modify VIRTIO_NET_Q object and provide vhost_log_page,
		dirty_bitmap_mkey, dirty_bitmap_size, dirty_bitmap_addr
		and dirty_bitmap_dump_enable.
	Modify VIRTIO_NET_Q object and move state to SUSPEND.
	Query VIRTIO_NET_Q and get hw_available_idx and hw_used_idx.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
a5a1d98ddc vdpa/mlx5: add basic steering configurations
Add a steering object to be managed by a new file mlx5_vdpa_steer.c.

Allow promiscuous flow to scatter the device Rx packets to the virtio
queues using RSS action.

In order to allow correct RSS in L3 and L4, split the flow to 7 flows
as required by the device.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
bff7350110 vdpa/mlx5: prepare virtio queues
The HW virtq object represents an emulated context for a VIRTIO_NET
virtqueue which was created and managed by a VIRTIO_NET driver as
defined in VIRTIO Specification.

Add support to prepare and release all the basic HW resources needed
the user virtqs emulation according to the rte_vhost configurations.

This patch prepares the basic configurations needed by DevX commands to
create a virtq.

Add new file mlx5_vdpa_virtq.c to manage virtq operations.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
8395927cdf vdpa/mlx5: prepare HW queues
As an arrangement to the vitrio queues creation, a 2 QPs and CQ may be
created for the virtio queue.

The design is to trigger an event for the guest and for the vdpa driver
when a new CQE is posted by the HW after the packet transition.

This patch add the basic operations to create and destroy the above HW
objects  and to trigger the CQE events when a new CQE is posted.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
cc07a42da2 vdpa/mlx5: prepare memory regions
In order to map the guest physical addresses used by the virtio device
guest side to the host physical addresses used by the HW as the host
side, memory regions are created.

By this way, for example, the HW can translate the addresses of the
packets posted by the guest and to take the packets from the correct
place.

The design is to work with single MR which will be configured to the
virtio queues in the HW, hence a lot of direct MRs are grouped to single
indirect MR.

Create functions to prepare and release MRs with all the related
resources that are required for it.

Create a new file mlx5_vdpa_mem.c to manage all the MR related code
in the driver.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-05 09:51:21 +01:00
Matan Azrad
95276abaaf vdpa/mlx5: introduce Mellanox vDPA driver
Add a new driver to support vDPA operations by Mellanox devices.

The first Mellanox devices which support vDPA operations are
ConnectX-6 Dx and Bluefield1 HCA for their PF ports and VF ports.

This driver is depending on rdma-core like the mlx5 PMD, also it is
going to use mlx5 DevX to create HW objects directly by the FW.
Hence, the common/mlx5 library is linked to the mlx5_vdpa driver.

This driver will not be compiled by default due to the above
dependencies.

Register a new log type for this driver.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-05 09:51:21 +01:00