Commit Graph

12 Commits

Author SHA1 Message Date
Raja Zidane
fb96caa56a net/mlx5: support ESP item on Windows
ESP item is not supported on Windows, yet it is expanded from the
expansion graph when trying to create default flow to RSS all packets.

Support ESP item match (without ability to match on SPI field on Windows).
Split ESP validation per OS.

Signed-off-by: Raja Zidane <rzidane@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2022-06-05 17:04:48 +02:00
Suanming Mou
2b6791506e net/mlx5: introduce hardware steering operation
The Connect-X steering is a lookup hardware mechanism that accesses flow
tables, matches packets to the rules, and performs specified actions.
Historically, mlx5 PMD implements several software engines to manage
steering hardware facility:

   - FW Steering - Verbs/Direct Verbs, uses FW calls to manage flows
   - SW Steering - DevX/mlx5dv, uses WQEs to access table memory directly

However, there are still some disadvantages:

   - performance is limited, we should invoke firmware either to
     manage the entire flow, or to handle some internal steering objects

   - organizing and preparing flow infrastructure (actions, matchers,
     groups, etc.) on the flow inserting is sure to cause slow flow
     insertion

   - security, exposing the low-level steering entries directly to the
     userspace may cause security risks

A new hardware WQE based steering operation with codename "HW Steering"
is going to be introduced to get rid of the security risks. And it will
take advantage of the recently new introduced async queue-based rte_flow
APIs to prepare everything in advance to achieve high insertion rate.

In this new HW steering engine, the original SW steering rte_flow API
will not be supported in the first implementation, only the new async
queue-based flow operations is going to be supported. A new steering
mode parameter for dv_flow_en will be introduced and user will be
able to engage the new steering engine.

This commit adds the basic driver operation.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
2022-02-24 22:10:15 +01:00
Matan Azrad
e681eb0515 net/mlx5: optimize header modify action memory
Define the types of the modify header action fields to be with the
minimum size needed for the optional values range.

Signed-off-by: Matan Azrad <matan@nvidia.com>
Acked-by: Suanming Mou <suanmingm@nvidia.com>
2021-07-15 15:19:09 +02:00
Ophir Munk
bd935fe3e6 net/mlx5: wrap sampling actions per OS
Wrap glue calls dr_create_flow_action_sampler() and
dr_create_flow_action_dest_array() as OS-specific functions.
This is a follow up on
commit b293fbf967 ("net/mlx5: add OS specific flow actions operations")

On Windows, the sampling actions wrappers currently return ENOTSUP.
Using configuration definitions HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE and
HAVE_MLX5_DR_CREATE_ACTION_DEST_ARRAY the missing sampling DV structs
are added as stubs to windows/mlx5_glue.h file.

Signed-off-by: Ophir Munk <ophirmu@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-01-08 16:34:52 +01:00
Tal Shnaiderman
62d5b30bf3 net/mlx5: wrap flow domain sync per OS
use OS functions for flow_dv_sync_domain to compile
Windows.

mlx5_os_flow_dr_sync_domain is unsupported for Windows.

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-01-08 16:03:08 +01:00
Ophir Munk
8801972313 net/mlx5: fix flow operation wrapper per OS
Wrap glue call dv_create_flow_action_dest_devx_tir() with an OS API.

Fixes: b293fbf967 ("net/mlx5: add OS specific flow actions operations")
Cc: stable@dpdk.org

Signed-off-by: Ophir Munk <ophirmu@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-01-08 16:03:08 +01:00
Ophir Munk
14020ad53d net/mlx5: wrap default miss flow action per OS
Wrap glue call dr_create_flow_action_default_miss() with an OS API. This
commit is a follow up on [1].

[1]
commit d4d85aa6f1 ("common/mlx5: add default miss action")
commit b293fbf967 ("net/mlx5: add OS specific flow actions operations")

Signed-off-by: Ophir Munk <ophirmu@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-01-08 16:03:08 +01:00
Ophir Munk
c604d92af7 net/mlx5: wrap adjust flow priority per OS
mlx5_flow_adjust_priority() is used to adjust priorities according to
priorities levels. It is Verbs based and it is called from shared code
(mlx5_flow_dv.c). Therefore, wrap it in an OS API.

Signed-off-by: Ophir Munk <ophirmu@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2021-01-08 16:03:08 +01:00
Dekel Peled
b293fbf967 net/mlx5: add OS specific flow actions operations
This patch introduces the OS specific functions, for flow actions
create and destroy operations.

In existing implementation, the functions to create flow actions
return a pointer to the created action object.

The new OS specific functions to create flow actions return 0 on
success, and (-1) on failure.
On success, a pointer to the created action object is returned
using an additional parameter.
On failure errno is set.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-07 23:38:26 +02:00
Dekel Peled
e57b858710 net/mlx5: add OS specific flow create and destroy
This patch introduces the OS specific functions, for flow create
and flow destroy operations.

In existing implementation, the functions to create objects
(flow/table/matcher) return a pointer to the created object.
The functions to destroy objects return 0 on success and errno on
failure.

The new OS specific functions to create objects return 0 on success,
and (-1) on failure.
On success, a pointer to the created object is returned using an
additional parameter.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-07 23:38:26 +02:00
Dekel Peled
e4ed8de39b net/mlx5: add OS specific flow type selection
In current implementation the flow type (DV/Verbs) is selected
using dedicated function flow_get_drv_type().

This patch adds OS specific function mlx5_flow_os_get_type(), to
allow OS specific flow type selection.
The new function is called by flow_get_drv_type(), and if it returns a
valid value (DV/Verbs) no more logic is required.
Otherwise the existing logic is executed.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-07 23:38:26 +02:00
Dekel Peled
17ad3af9f4 net/mlx5: add OS specific flow related utilities
This patch introduces the first OS specific utility functions,
for use by flow engine in different OS implementation.

The first utility functions are:
bool mlx5_flow_os_item_supported(item)
bool mlx5_flow_os_action_supported(action)

They are implemented to check OS specific support for different
item types and action types.

New header file is added:
drivers/net/mlx5/linux/mlx5_flow_os.h

This file contains the utility functions mentioned above for Linux OS.
At this stage they are implemented as static inline, for efficiency,
and always return true.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-07 23:38:26 +02:00