diff mbox series

[v2,03/10] ethdev: bring in async queue-based flow rules operations

Message ID 20220118153027.3947448-4-akozyrev@nvidia.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series ethdev: datapath-focused flow rules management | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Alexander Kozyrev Jan. 18, 2022, 3:30 p.m. UTC
A new, faster, queue-based flow rules management mechanism is needed for
applications offloading rules inside the datapath. This asynchronous
and lockless mechanism frees the CPU for further packet processing and
reduces the performance impact of the flow rules creation/destruction
on the datapath. Note that queues are not thread-safe and the queue
should be accessed from the same thread for all queue operations.
It is the responsibility of the app to sync the queue functions in case
of multi-threaded access to the same queue.

The rte_flow_q_flow_create() function enqueues a flow creation to the
requested queue. It benefits from already configured resources and sets
unique values on top of item and action templates. A flow rule is enqueued
on the specified flow queue and offloaded asynchronously to the hardware.
The function returns immediately to spare CPU for further packet
processing. The application must invoke the rte_flow_q_dequeue() function
to complete the flow rule operation offloading, to clear the queue, and to
receive the operation status. The rte_flow_q_flow_destroy() function
enqueues a flow destruction to the requested queue.

Signed-off-by: Alexander Kozyrev <akozyrev@nvidia.com>
---
 doc/guides/prog_guide/img/rte_flow_q_init.svg |  71 ++++
 .../prog_guide/img/rte_flow_q_usage.svg       |  60 +++
 doc/guides/prog_guide/rte_flow.rst            | 158 ++++++++
 doc/guides/rel_notes/release_22_03.rst        |   9 +
 lib/ethdev/rte_flow.c                         | 173 ++++++++-
 lib/ethdev/rte_flow.h                         | 348 ++++++++++++++++++
 lib/ethdev/rte_flow_driver.h                  |  61 +++
 lib/ethdev/version.map                        |   7 +
 8 files changed, 886 insertions(+), 1 deletion(-)
 create mode 100644 doc/guides/prog_guide/img/rte_flow_q_init.svg
 create mode 100644 doc/guides/prog_guide/img/rte_flow_q_usage.svg
diff mbox series

Patch

diff --git a/doc/guides/prog_guide/img/rte_flow_q_init.svg b/doc/guides/prog_guide/img/rte_flow_q_init.svg
new file mode 100644
index 0000000000..994e85521c
--- /dev/null
+++ b/doc/guides/prog_guide/img/rte_flow_q_init.svg
@@ -0,0 +1,71 @@ 
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- SPDX-License-Identifier: BSD-3-Clause -->
+<!-- Copyright(c) 2022 NVIDIA Corporation & Affiliates -->
+
+<svg
+   width="485" height="535"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   overflow="hidden">
+   <defs>
+      <clipPath id="clip0">
+         <rect x="0" y="0" width="485" height="535"/>
+      </clipPath>
+   </defs>
+   <g clip-path="url(#clip0)">
+      <rect x="0" y="0" width="485" height="535" fill="#FFFFFF"/>
+      <rect x="0.500053" y="79.5001" width="482" height="59"
+         stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8"
+         fill="#A6A6A6"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(121.6 116)">
+         rte_eth_dev_configure
+         <tspan font-size="24" x="224.007" y="0">()</tspan>
+      </text>
+      <rect x="0.500053" y="158.5" width="482" height="59" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(140.273 195)">
+         rte_flow_configure()
+      </text>
+      <rect x="0.500053" y="236.5" width="482" height="60" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(77.4259 274)">
+         rte_flow_item_template_create()
+      </text>
+      <rect x="0.500053" y="316.5" width="482" height="59" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(69.3792 353)">
+         rte_flow_action_template_create
+         <tspan font-size="24" x="328.447" y="0">(</tspan>)
+      </text>
+      <rect x="0.500053" y="0.500053" width="482" height="60" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#A6A6A6"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(177.233 37)">
+         rte_eal_init
+         <tspan font-size="24" x="112.74" y="0">()</tspan>
+      </text>
+      <path d="M2-1.09108e-05 2.00005 9.2445-1.99995 9.24452-2 1.09108e-05ZM6.00004 7.24448 0.000104987 19.2445-5.99996 7.24455Z" transform="matrix(-1 0 0 1 241 60)"/>
+      <path d="M2-1.08133e-05 2.00005 9.41805-1.99995 9.41807-2 1.08133e-05ZM6.00004 7.41802 0.000104987 19.4181-5.99996 7.41809Z" transform="matrix(-1 0 0 1 241 138)"/>
+      <path d="M2-1.09108e-05 2.00005 9.2445-1.99995 9.24452-2 1.09108e-05ZM6.00004 7.24448 0.000104987 19.2445-5.99996 7.24455Z" transform="matrix(-1 0 0 1 241 217)"/>
+      <rect x="0.500053" y="395.5" width="482" height="59" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(124.989 432)">
+         rte_flow_table_create
+         <tspan font-size="24" x="217.227" y="0">(</tspan>
+         <tspan font-size="24" x="224.56" y="0">)</tspan>
+      </text>
+      <path d="M2-1.05859e-05 2.00005 9.83526-1.99995 9.83529-2 1.05859e-05ZM6.00004 7.83524 0.000104987 19.8353-5.99996 7.83531Z" transform="matrix(-1 0 0 1 241 296)"/>
+      <path d="M243 375 243 384.191 239 384.191 239 375ZM247 382.191 241 394.191 235 382.191Z"/>
+      <rect x="0.500053" y="473.5" width="482" height="60" stroke="#000000"
+         stroke-width="1.33333" stroke-miterlimit="8" fill="#A6A6A6"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif"
+         font-weight="400" font-size="24" transform="translate(145.303 511)">
+         rte_eth_dev_start()</text>
+      <path d="M245 454 245 463.191 241 463.191 241 454ZM249 461.191 243 473.191 237 461.191Z"/>
+   </g>
+</svg>
\ No newline at end of file
diff --git a/doc/guides/prog_guide/img/rte_flow_q_usage.svg b/doc/guides/prog_guide/img/rte_flow_q_usage.svg
new file mode 100644
index 0000000000..14447ef8eb
--- /dev/null
+++ b/doc/guides/prog_guide/img/rte_flow_q_usage.svg
@@ -0,0 +1,60 @@ 
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- SPDX-License-Identifier: BSD-3-Clause -->
+<!-- Copyright(c) 2022 NVIDIA Corporation & Affiliates -->
+
+<svg
+   width="880" height="610"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   overflow="hidden">
+   <defs>
+      <clipPath id="clip0">
+         <rect x="0" y="0" width="880" height="610"/>
+      </clipPath>
+   </defs>
+   <g clip-path="url(#clip0)">
+      <rect x="0" y="0" width="880" height="610" fill="#FFFFFF"/>
+      <rect x="333.5" y="0.500053" width="234" height="45" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#A6A6A6"/>
+      <text font-family="Consolas,Consolas_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(357.196 29)">rte_eth_rx_burst()</text>
+      <rect x="333.5" y="63.5001" width="234" height="45" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#D9D9D9"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(394.666 91)">analyze <tspan font-size="19" x="60.9267" y="0">packet </tspan></text>
+      <rect x="572.5" y="279.5" width="234" height="46" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(591.429 308)">rte_flow_q_create_flow()</text>
+      <path d="M333.5 384 450.5 350.5 567.5 384 450.5 417.5Z" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#D9D9D9" fill-rule="evenodd"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(430.069 378)">more <tspan font-size="19" x="-12.94" y="23">packets?</tspan></text>
+      <path d="M689.249 325.5 689.249 338.402 450.5 338.402 450.833 338.069 450.833 343.971 450.167 343.971 450.167 337.735 688.916 337.735 688.582 338.069 688.582 325.5ZM454.5 342.638 450.5 350.638 446.5 342.638Z"/>
+      <path d="M450.833 45.5 450.833 56.8197 450.167 56.8197 450.167 45.5001ZM454.5 55.4864 450.5 63.4864 446.5 55.4864Z"/>
+      <path d="M450.833 108.5 450.833 120.375 450.167 120.375 450.167 108.5ZM454.5 119.041 450.5 127.041 446.5 119.041Z"/>
+      <path d="M451.833 507.5 451.833 533.61 451.167 533.61 451.167 507.5ZM455.5 532.277 451.5 540.277 447.5 532.277Z"/>
+      <path d="M0 0.333333-23.9993 0.333333-23.666 0-23.666 141.649-23.9993 141.316 562.966 141.316 562.633 141.649 562.633 124.315 563.299 124.315 563.299 141.983-24.3327 141.983-24.3327-0.333333 0-0.333333ZM558.966 125.649 562.966 117.649 566.966 125.649Z" transform="matrix(-6.12323e-17 -1 -1 6.12323e-17 451.149 585.466)"/>
+      <path d="M333.5 160.5 450.5 126.5 567.5 160.5 450.5 194.5Z" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#D9D9D9" fill-rule="evenodd"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(417.576 155)">add new <tspan font-size="19" x="13.2867" y="23">rule?</tspan></text>
+      <path d="M567.5 160.167 689.267 160.167 689.267 273.228 688.6 273.228 688.6 160.5 688.933 160.833 567.5 160.833ZM692.933 271.894 688.933 279.894 684.933 271.894Z"/>
+      <rect x="602.5" y="127.5" width="46" height="30" stroke="#000000" stroke-width="0.666667" stroke-miterlimit="8" fill="#D9D9D9"/>
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+      <rect x="254.5" y="126.5" width="46" height="31" stroke="#000000" stroke-width="0.666667" stroke-miterlimit="8" fill="#D9D9D9"/>
+      <text font-family="Trebuchet MS,Trebuchet MS_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(267.182 147)">no</text>
+      <path d="M0-0.333333 251.563-0.333333 251.563 298.328 8.00002 298.328 8.00002 297.662 251.229 297.662 250.896 297.995 250.896 0 251.229 0.333333 0 0.333333ZM9.33333 301.995 1.33333 297.995 9.33333 293.995Z" transform="matrix(1 0 0 -1 567.5 383.495)"/>
+      <path d="M86.5001 213.5 203.5 180.5 320.5 213.5 203.5 246.5Z" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#D9D9D9" fill-rule="evenodd"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(159.155 208)">destroy the <tspan font-size="19" x="24.0333" y="23">rule?</tspan></text>
+      <path d="M0-0.333333 131.029-0.333333 131.029 12.9778 130.363 12.9778 130.363 0 130.696 0.333333 0 0.333333ZM134.696 11.6445 130.696 19.6445 126.696 11.6445Z" transform="matrix(-1 1.22465e-16 1.22465e-16 1 334.196 160.5)"/>
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+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(96.2282 308)">rte_flow_q_destroy_flow()</text>
+      <path d="M0 0.333333-24.0001 0.333333-23.6667 0-23.6667 49.9498-24.0001 49.6165 121.748 49.6165 121.748 59.958 121.082 59.958 121.082 49.9498 121.415 50.2832-24.3334 50.2832-24.3334-0.333333 0-0.333333ZM125.415 58.6247 121.415 66.6247 117.415 58.6247Z" transform="matrix(-1 0 0 1 319.915 213.5)"/>
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+      <path d="M0-0.333333 12.8273-0.333333 12.8273 252.111 12.494 251.778 18.321 251.778 18.321 252.445 12.1607 252.445 12.1607 0 12.494 0.333333 0 0.333333ZM16.9877 248.111 24.9877 252.111 16.9877 256.111Z" transform="matrix(1.83697e-16 1 1 -1.83697e-16 198.5 325.5)"/>
+      <rect x="334.5" y="540.5" width="234" height="45" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(365.083 569)">rte_flow_q_dequeue<tspan font-size="19" x="160.227" y="0">()</tspan></text>
+      <rect x="334.5" y="462.5" width="234" height="45" stroke="#000000" stroke-width="1.33333" stroke-miterlimit="8" fill="#FFFFFF"/>
+      <text font-family="Calibri,Calibri_MSFontService,sans-serif" font-weight="400" font-size="19" transform="translate(379.19 491)">rte_flow_q<tspan font-size="19" x="83.56" y="0">_drain</tspan>()</text>
+      <path d="M450.833 417.495 451.402 455.999 450.735 456.008 450.167 417.505ZM455.048 454.611 451.167 462.669 447.049 454.729Z"/>
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+   </g>
+</svg>
\ No newline at end of file
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index aa9d4e9573..b004811a20 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -3607,18 +3607,22 @@  Hints about the expected number of counters or meters in an application,
 for example, allow PMD to prepare and optimize NIC memory layout in advance.
 ``rte_flow_configure()`` must be called before any flow rule is created,
 but after an Ethernet device is configured.
+It also creates flow queues for asynchronous flow rules operations via
+queue-based API, see `Asynchronous operations`_ section.
 
 .. code-block:: c
 
    int
    rte_flow_configure(uint16_t port_id,
                      const struct rte_flow_port_attr *port_attr,
+                     const struct rte_flow_queue_attr *queue_attr[],
                      struct rte_flow_error *error);
 
 Arguments:
 
 - ``port_id``: port identifier of Ethernet device.
 - ``port_attr``: port attributes for flow management library.
+- ``queue_attr``: queue attributes for asynchronous operations.
 - ``error``: perform verbose error reporting if not NULL. PMDs initialize
   this structure in case of error only.
 
@@ -3750,6 +3754,160 @@  and item and action templates are created.
 				*at, nb_action_templates,
 				*error);
 
+Asynchronous operations
+-----------------------
+
+Flow rules creation/destruction can be done by using lockless flow queues.
+An application configures the number of queues during the initialization stage.
+Then create/destroy operations are enqueued without any locks asynchronously.
+By adopting an asynchronous queue-based approach, the packet processing can
+continue with handling next packets while insertion/destruction of a flow rule
+is processed inside the hardware. The application is expected to poll for
+results later to see if the flow rule is successfully inserted/destroyed.
+User data is returned as part of the result to identify the enqueued operation.
+Polling must be done before the queue is overflowed or periodically.
+Operations can be reordered inside a queue, so the result of the rule creation
+needs to be polled first before enqueueing the destroy operation for the rule.
+Flow handle is valid once the create operation is enqueued and must be
+destroyed even if the operation is not successful and the rule is not inserted.
+
+The asynchronous flow rule insertion logic can be broken into two phases.
+
+1. Initialization stage as shown here:
+
+.. _figure_rte_flow_q_init:
+
+.. figure:: img/rte_flow_q_init.*
+
+2. Main loop as presented on a datapath application example:
+
+.. _figure_rte_flow_q_usage:
+
+.. figure:: img/rte_flow_q_usage.*
+
+Enqueue creation operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enqueueing a flow rule creation operation is similar to simple creation.
+
+.. code-block:: c
+
+	struct rte_flow *
+	rte_flow_q_flow_create(uint16_t port_id,
+				uint32_t queue_id,
+				const struct rte_flow_q_ops_attr *q_ops_attr,
+				struct rte_flow_table *table,
+				const struct rte_flow_item items[],
+				uint8_t item_template_index,
+				const struct rte_flow_action actions[],
+				uint8_t action_template_index,
+				struct rte_flow_error *error);
+
+A valid handle in case of success is returned. It must be destroyed later
+by calling ``rte_flow_q_flow_destroy()`` even if the rule is rejected by HW.
+
+Enqueue destruction operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enqueueing a flow rule destruction operation is similar to simple destruction.
+
+.. code-block:: c
+
+	int
+	rte_flow_q_flow_destroy(uint16_t port_id,
+				uint32_t queue_id,
+				const struct rte_flow_q_ops_attr *q_ops_attr,
+				struct rte_flow *flow,
+				struct rte_flow_error *error);
+
+Drain a queue
+~~~~~~~~~~~~~
+
+Function to drain the queue and push all internally stored rules to the NIC.
+
+.. code-block:: c
+
+	int
+	rte_flow_q_drain(uint16_t port_id,
+			uint32_t queue_id,
+			struct rte_flow_error *error);
+
+There is the drain attribute in the queue operation attributes.
+When set, the requested operation must be sent to the HW without any delay.
+If not, multiple operations can be bulked together and not sent to HW right
+away to save SW/HW interactions and prioritize throughput over latency.
+The application must invoke this function to actually push all outstanding
+operations to HW in the latter case.
+
+Dequeue operations
+~~~~~~~~~~~~~~~~~~
+
+Dequeue rte flow operations.
+
+The application must invoke this function in order to complete the asynchronous
+flow rule operation and to receive the flow rule operation status.
+
+.. code-block:: c
+
+	int
+	rte_flow_q_dequeue(uint16_t port_id,
+			uint32_t queue_id,
+			struct rte_flow_q_op_res res[],
+			uint16_t n_res,
+			struct rte_flow_error *error);
+
+Multiple outstanding operations can be dequeued simultaneously.
+User data may be provided during a flow creation/destruction in order
+to distinguish between multiple operations. User data is returned as part
+of the result to provide a method to detect which operation is completed.
+
+Enqueue indirect action creation operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Asynchronous version of indirect action creation API.
+
+.. code-block:: c
+
+	struct rte_flow_action_handle *
+	rte_flow_q_action_handle_create(uint16_t port_id,
+			uint32_t queue_id,
+			const struct rte_flow_q_ops_attr *q_ops_attr,
+			const struct rte_flow_indir_action_conf *indir_action_conf,
+			const struct rte_flow_action *action,
+			struct rte_flow_error *error);
+
+A valid handle in case of success is returned. It must be destroyed later by
+calling ``rte_flow_q_action_handle_destroy()`` even if the rule is rejected.
+
+Enqueue indirect action destruction operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Asynchronous version of indirect action destruction API.
+
+.. code-block:: c
+
+	int
+	rte_flow_q_action_handle_destroy(uint16_t port_id,
+			uint32_t queue_id,
+			const struct rte_flow_q_ops_attr *q_ops_attr,
+			struct rte_flow_action_handle *action_handle,
+			struct rte_flow_error *error);
+
+Enqueue indirect action update operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Asynchronous version of indirect action update API.
+
+.. code-block:: c
+
+	int
+	rte_flow_q_action_handle_update(uint16_t port_id,
+			uint32_t queue_id,
+			const struct rte_flow_q_ops_attr *q_ops_attr,
+			struct rte_flow_action_handle *action_handle,
+			const void *update,
+			struct rte_flow_error *error);
+
 .. _flow_isolated_mode:
 
 Flow isolated mode
diff --git a/doc/guides/rel_notes/release_22_03.rst b/doc/guides/rel_notes/release_22_03.rst
index af56f54bc4..7ccac912a3 100644
--- a/doc/guides/rel_notes/release_22_03.rst
+++ b/doc/guides/rel_notes/release_22_03.rst
@@ -66,6 +66,15 @@  New Features
   ``rte_flow_table_destroy``, ``rte_flow_item_template_destroy``
   and ``rte_flow_action_template_destroy`` respectively.
 
+* ethdev: Added ``rte_flow_q_flow_create`` and ``rte_flow_q_flow_destroy`` API
+  to enqueue flow creaion/destruction operations asynchronously as well as
+  ``rte_flow_q_dequeue`` to poll results of these operations and
+  ``rte_flow_q_drain`` to drain the flow queue and pass all operations to NIC.
+  Introduced asynchronous API for indirect actions management as well:
+  ``rte_flow_q_action_handle_create``, ``rte_flow_q_action_handle_destroy`` and
+  ``rte_flow_q_action_handle_update``.
+
+
 Removed Items
 -------------
 
diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c
index 20613f6bed..6da899c5df 100644
--- a/lib/ethdev/rte_flow.c
+++ b/lib/ethdev/rte_flow.c
@@ -1395,6 +1395,7 @@  rte_flow_flex_item_release(uint16_t port_id,
 int
 rte_flow_configure(uint16_t port_id,
 		   const struct rte_flow_port_attr *port_attr,
+		   const struct rte_flow_queue_attr *queue_attr[],
 		   struct rte_flow_error *error)
 {
 	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
@@ -1404,7 +1405,8 @@  rte_flow_configure(uint16_t port_id,
 		return -rte_errno;
 	if (likely(!!ops->configure)) {
 		return flow_err(port_id,
-				ops->configure(dev, port_attr, error),
+				ops->configure(dev, port_attr,
+					       queue_attr, error),
 				error);
 	}
 	return rte_flow_error_set(error, ENOTSUP,
@@ -1552,3 +1554,172 @@  rte_flow_table_destroy(uint16_t port_id,
 				  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 				  NULL, rte_strerror(ENOTSUP));
 }
+
+struct rte_flow *
+rte_flow_q_flow_create(uint16_t port_id,
+		       uint32_t queue_id,
+		       const struct rte_flow_q_ops_attr *q_ops_attr,
+		       struct rte_flow_table *table,
+		       const struct rte_flow_item items[],
+		       uint8_t item_template_index,
+		       const struct rte_flow_action actions[],
+		       uint8_t action_template_index,
+		       struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+	struct rte_flow *flow;
+
+	if (unlikely(!ops))
+		return NULL;
+	if (likely(!!ops->q_flow_create)) {
+		flow = ops->q_flow_create(dev, queue_id, q_ops_attr, table,
+					  items, item_template_index,
+					  actions, action_template_index,
+					  error);
+		if (flow == NULL)
+			flow_err(port_id, -rte_errno, error);
+		return flow;
+	}
+	rte_flow_error_set(error, ENOTSUP,
+			   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+			   NULL, rte_strerror(ENOTSUP));
+	return NULL;
+}
+
+int
+rte_flow_q_flow_destroy(uint16_t port_id,
+			uint32_t queue_id,
+			const struct rte_flow_q_ops_attr *q_ops_attr,
+			struct rte_flow *flow,
+			struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+
+	if (unlikely(!ops))
+		return -rte_errno;
+	if (likely(!!ops->q_flow_destroy)) {
+		return flow_err(port_id,
+				ops->q_flow_destroy(dev, queue_id,
+						    q_ops_attr, flow, error),
+				error);
+	}
+	return rte_flow_error_set(error, ENOTSUP,
+				  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+				  NULL, rte_strerror(ENOTSUP));
+}
+
+struct rte_flow_action_handle *
+rte_flow_q_action_handle_create(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		const struct rte_flow_indir_action_conf *indir_action_conf,
+		const struct rte_flow_action *action,
+		struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+	struct rte_flow_action_handle *handle;
+
+	if (unlikely(!ops))
+		return NULL;
+	if (unlikely(!ops->q_action_handle_create)) {
+		rte_flow_error_set(error, ENOSYS,
+				   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+				   rte_strerror(ENOSYS));
+		return NULL;
+	}
+	handle = ops->q_action_handle_create(dev, queue_id, q_ops_attr,
+					     indir_action_conf, action, error);
+	if (handle == NULL)
+		flow_err(port_id, -rte_errno, error);
+	return handle;
+}
+
+int
+rte_flow_q_action_handle_destroy(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		struct rte_flow_action_handle *action_handle,
+		struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+	int ret;
+
+	if (unlikely(!ops))
+		return -rte_errno;
+	if (unlikely(!ops->q_action_handle_destroy))
+		return rte_flow_error_set(error, ENOSYS,
+					  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+					  NULL, rte_strerror(ENOSYS));
+	ret = ops->q_action_handle_destroy(dev, queue_id, q_ops_attr,
+					   action_handle, error);
+	return flow_err(port_id, ret, error);
+}
+
+int
+rte_flow_q_action_handle_update(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		struct rte_flow_action_handle *action_handle,
+		const void *update,
+		struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+	int ret;
+
+	if (unlikely(!ops))
+		return -rte_errno;
+	if (unlikely(!ops->q_action_handle_update))
+		return rte_flow_error_set(error, ENOSYS,
+					  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+					  NULL, rte_strerror(ENOSYS));
+	ret = ops->q_action_handle_update(dev, queue_id, q_ops_attr,
+					  action_handle, update, error);
+	return flow_err(port_id, ret, error);
+}
+
+int
+rte_flow_q_drain(uint16_t port_id,
+		 uint32_t queue_id,
+		 struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+
+	if (unlikely(!ops))
+		return -rte_errno;
+	if (likely(!!ops->q_drain)) {
+		return flow_err(port_id,
+				ops->q_drain(dev, queue_id, error),
+				error);
+	}
+	return rte_flow_error_set(error, ENOTSUP,
+				  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+				  NULL, rte_strerror(ENOTSUP));
+}
+
+int
+rte_flow_q_dequeue(uint16_t port_id,
+		   uint32_t queue_id,
+		   struct rte_flow_q_op_res res[],
+		   uint16_t n_res,
+		   struct rte_flow_error *error)
+{
+	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);
+	int ret;
+
+	if (unlikely(!ops))
+		return -rte_errno;
+	if (likely(!!ops->q_dequeue)) {
+		ret = ops->q_dequeue(dev, queue_id, res, n_res, error);
+		return ret ? ret : flow_err(port_id, ret, error);
+	}
+	return rte_flow_error_set(error, ENOTSUP,
+				  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+				  NULL, rte_strerror(ENOTSUP));
+}
diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h
index 2e54e9d0e3..07193090f2 100644
--- a/lib/ethdev/rte_flow.h
+++ b/lib/ethdev/rte_flow.h
@@ -4865,6 +4865,13 @@  struct rte_flow_port_attr {
 	 * Version of the struct layout, should be 0.
 	 */
 	uint32_t version;
+	/**
+	 * Number of flow queues to be configured.
+	 * Flow queues are used for asynchronous flow rule operations.
+	 * The order of operations is not guaranteed inside a queue.
+	 * Flow queues are not thread-safe.
+	 */
+	uint16_t nb_queues;
 	/**
 	 * Number of counter actions pre-configured.
 	 * If set to 0, PMD will allocate counters dynamically.
@@ -4885,6 +4892,21 @@  struct rte_flow_port_attr {
 	uint32_t nb_meters;
 };
 
+/**
+ * Flow engine queue configuration.
+ */
+__extension__
+struct rte_flow_queue_attr {
+	/**
+	 * Version of the struct layout, should be 0.
+	 */
+	uint32_t version;
+	/**
+	 * Number of flow rule operations a queue can hold.
+	 */
+	uint32_t size;
+};
+
 /**
  * @warning
  * @b EXPERIMENTAL: this API may change without prior notice.
@@ -4903,6 +4925,9 @@  struct rte_flow_port_attr {
  *   Port identifier of Ethernet device.
  * @param[in] port_attr
  *   Port configuration attributes.
+ * @param[in] queue_attr
+ *   Array that holds attributes for each flow queue.
+ *   Number of elements is set in @p port_attr.nb_queues.
  * @param[out] error
  *   Perform verbose error reporting if not NULL.
  *   PMDs initialize this structure in case of error only.
@@ -4914,6 +4939,7 @@  __rte_experimental
 int
 rte_flow_configure(uint16_t port_id,
 		   const struct rte_flow_port_attr *port_attr,
+		   const struct rte_flow_queue_attr *queue_attr[],
 		   struct rte_flow_error *error);
 
 /**
@@ -5185,6 +5211,328 @@  rte_flow_table_destroy(uint16_t port_id,
 		       struct rte_flow_table *table,
 		       struct rte_flow_error *error);
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Queue operation attributes.
+ */
+struct rte_flow_q_ops_attr {
+	/**
+	 * Version of the struct layout, should be 0.
+	 */
+	uint32_t version;
+	/**
+	 * The user data that will be returned on the completion events.
+	 */
+	void *user_data;
+	 /**
+	  * When set, the requested action must be sent to the HW without
+	  * any delay. Any prior requests must be also sent to the HW.
+	  * If this bit is cleared, the application must call the
+	  * rte_flow_queue_drain API to actually send the request to the HW.
+	  */
+	uint32_t drain:1;
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue rule creation operation.
+ *
+ * @param port_id
+ *   Port identifier of Ethernet device.
+ * @param queue_id
+ *   Flow queue used to insert the rule.
+ * @param[in] q_ops_attr
+ *   Rule creation operation attributes.
+ * @param[in] table
+ *   Table to select templates from.
+ * @param[in] items
+ *   List of pattern items to be used.
+ *   The list order should match the order in the item template.
+ *   The spec is the only relevant member of the item that is being used.
+ * @param[in] item_template_index
+ *   Item template index in the table.
+ * @param[in] actions
+ *   List of actions to be used.
+ *   The list order should match the order in the action template.
+ * @param[in] action_template_index
+ *   Action template index in the table.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   Handle on success, NULL otherwise and rte_errno is set.
+ *   The rule handle doesn't mean that the rule was offloaded.
+ *   Only completion result indicates that the rule was offloaded.
+ */
+__rte_experimental
+struct rte_flow *
+rte_flow_q_flow_create(uint16_t port_id,
+		       uint32_t queue_id,
+		       const struct rte_flow_q_ops_attr *q_ops_attr,
+		       struct rte_flow_table *table,
+		       const struct rte_flow_item items[],
+		       uint8_t item_template_index,
+		       const struct rte_flow_action actions[],
+		       uint8_t action_template_index,
+		       struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue rule destruction operation.
+ *
+ * This function enqueues a destruction operation on the queue.
+ * Application should assume that after calling this function
+ * the rule handle is not valid anymore.
+ * Completion indicates the full removal of the rule from the HW.
+ *
+ * @param port_id
+ *   Port identifier of Ethernet device.
+ * @param queue_id
+ *   Flow queue which is used to destroy the rule.
+ *   This must match the queue on which the rule was created.
+ * @param[in] q_ops_attr
+ *   Rule destroy operation attributes.
+ * @param[in] flow
+ *   Flow handle to be destroyed.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+__rte_experimental
+int
+rte_flow_q_flow_destroy(uint16_t port_id,
+			uint32_t queue_id,
+			const struct rte_flow_q_ops_attr *q_ops_attr,
+			struct rte_flow *flow,
+			struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue indirect action creation operation.
+ * @see rte_flow_action_handle_create
+ *
+ * @param[in] port_id
+ *   Port identifier of Ethernet device.
+ * @param[in] queue_id
+ *   Flow queue which is used to create the rule.
+ * @param[in] q_ops_attr
+ *   Queue operation attributes.
+ * @param[in] indir_action_conf
+ *   Action configuration for the indirect action object creation.
+ * @param[in] action
+ *   Specific configuration of the indirect action object.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   - (0) if success.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-ENOSYS) if underlying device does not support this functionality.
+ *   - (-EIO) if underlying device is removed.
+ *   - (-ENOENT) if action pointed by *action* handle was not found.
+ *   - (-EBUSY) if action pointed by *action* handle still used by some rules
+ *   rte_errno is also set.
+ */
+__rte_experimental
+struct rte_flow_action_handle *
+rte_flow_q_action_handle_create(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		const struct rte_flow_indir_action_conf *indir_action_conf,
+		const struct rte_flow_action *action,
+		struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue indirect action destruction operation.
+ * The destroy queue must be the same
+ * as the queue on which the action was created.
+ *
+ * @param[in] port_id
+ *   Port identifier of Ethernet device.
+ * @param[in] queue_id
+ *   Flow queue which is used to destroy the rule.
+ * @param[in] q_ops_attr
+ *   Queue operation attributes.
+ * @param[in] action_handle
+ *   Handle for the indirect action object to be destroyed.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   - (0) if success.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-ENOSYS) if underlying device does not support this functionality.
+ *   - (-EIO) if underlying device is removed.
+ *   - (-ENOENT) if action pointed by *action* handle was not found.
+ *   - (-EBUSY) if action pointed by *action* handle still used by some rules
+ *   rte_errno is also set.
+ */
+__rte_experimental
+int
+rte_flow_q_action_handle_destroy(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		struct rte_flow_action_handle *action_handle,
+		struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue indirect action update operation.
+ * @see rte_flow_action_handle_create
+ *
+ * @param[in] port_id
+ *   Port identifier of Ethernet device.
+ * @param[in] queue_id
+ *   Flow queue which is used to update the rule.
+ * @param[in] q_ops_attr
+ *   Queue operation attributes.
+ * @param[in] action_handle
+ *   Handle for the indirect action object to be updated.
+ * @param[in] update
+ *   Update profile specification used to modify the action pointed by handle.
+ *   *update* could be with the same type of the immediate action corresponding
+ *   to the *handle* argument when creating, or a wrapper structure includes
+ *   action configuration to be updated and bit fields to indicate the member
+ *   of fields inside the action to update.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   - (0) if success.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - (-ENOSYS) if underlying device does not support this functionality.
+ *   - (-EIO) if underlying device is removed.
+ *   - (-ENOENT) if action pointed by *action* handle was not found.
+ *   - (-EBUSY) if action pointed by *action* handle still used by some rules
+ *   rte_errno is also set.
+ */
+__rte_experimental
+int
+rte_flow_q_action_handle_update(uint16_t port_id,
+		uint32_t queue_id,
+		const struct rte_flow_q_ops_attr *q_ops_attr,
+		struct rte_flow_action_handle *action_handle,
+		const void *update,
+		struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Drain the queue and push all internally stored rules to the HW.
+ * Non-drained rules are rules that were inserted without the drain flag set.
+ * Can be used to notify the HW about batch of rules prepared by the SW to
+ * reduce the number of communications between the HW and SW.
+ *
+ * @param port_id
+ *   Port identifier of Ethernet device.
+ * @param queue_id
+ *   Flow queue to be drained.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *    0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+__rte_experimental
+int
+rte_flow_q_drain(uint16_t port_id,
+		 uint32_t queue_id,
+		 struct rte_flow_error *error);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Dequeue operation status.
+ */
+enum rte_flow_q_op_status {
+	/**
+	 * The operation was completed successfully.
+	 */
+	RTE_FLOW_Q_OP_SUCCESS,
+	/**
+	 * The operation was not completed successfully.
+	 */
+	RTE_FLOW_Q_OP_ERROR,
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Queue operation attributes
+ */
+__extension__
+struct rte_flow_q_op_res {
+	/**
+	 * Version of the struct layout, should be 0.
+	 */
+	uint32_t version;
+	/**
+	 * Returns the status of the operation that this completion signals.
+	 */
+	enum rte_flow_q_op_status status;
+	/**
+	 * The user data that will be returned on the completion events.
+	 */
+	void *user_data;
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Dequeue a rte flow operation.
+ * The application must invoke this function in order to complete
+ * the flow rule offloading and to receive the flow rule operation status.
+ *
+ * @param port_id
+ *   Port identifier of Ethernet device.
+ * @param queue_id
+ *   Flow queue which is used to dequeue the operation.
+ * @param[out] res
+ *   Array of results that will be set.
+ * @param[in] n_res
+ *   Maximum number of results that can be returned.
+ *   This value is equal to the size of the res array.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL.
+ *   PMDs initialize this structure in case of error only.
+ *
+ * @return
+ *   Number of results that were dequeued,
+ *   a negative errno value otherwise and rte_errno is set.
+ */
+__rte_experimental
+int
+rte_flow_q_dequeue(uint16_t port_id,
+		   uint32_t queue_id,
+		   struct rte_flow_q_op_res res[],
+		   uint16_t n_res,
+		   struct rte_flow_error *error);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/ethdev/rte_flow_driver.h b/lib/ethdev/rte_flow_driver.h
index cda021c302..d1cfdd2d75 100644
--- a/lib/ethdev/rte_flow_driver.h
+++ b/lib/ethdev/rte_flow_driver.h
@@ -156,6 +156,7 @@  struct rte_flow_ops {
 	int (*configure)
 		(struct rte_eth_dev *dev,
 		 const struct rte_flow_port_attr *port_attr,
+		 const struct rte_flow_queue_attr *queue_attr[],
 		 struct rte_flow_error *err);
 	/** See rte_flow_item_template_create() */
 	struct rte_flow_item_template *(*item_template_create)
@@ -194,6 +195,66 @@  struct rte_flow_ops {
 		(struct rte_eth_dev *dev,
 		 struct rte_flow_table *table,
 		 struct rte_flow_error *err);
+	/** See rte_flow_q_flow_create() */
+	struct rte_flow *(*q_flow_create)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 struct rte_flow_table *table,
+		 const struct rte_flow_item items[],
+		 uint8_t item_template_index,
+		 const struct rte_flow_action actions[],
+		 uint8_t action_template_index,
+		 struct rte_flow_error *err);
+	/** See rte_flow_q_flow_destroy() */
+	int (*q_flow_destroy)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 struct rte_flow *flow,
+		 struct rte_flow_error *err);
+	/** See rte_flow_q_flow_update() */
+	int (*q_flow_update)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 struct rte_flow *flow,
+		 struct rte_flow_error *err);
+	/** See rte_flow_q_action_handle_create() */
+	struct rte_flow_action_handle *(*q_action_handle_create)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 const struct rte_flow_indir_action_conf *indir_action_conf,
+		 const struct rte_flow_action *action,
+		 struct rte_flow_error *err);
+	/** See rte_flow_q_action_handle_destroy() */
+	int (*q_action_handle_destroy)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 struct rte_flow_action_handle *action_handle,
+		 struct rte_flow_error *error);
+	/** See rte_flow_q_action_handle_update() */
+	int (*q_action_handle_update)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 const struct rte_flow_q_ops_attr *q_ops_attr,
+		 struct rte_flow_action_handle *action_handle,
+		 const void *update,
+		 struct rte_flow_error *error);
+	/** See rte_flow_q_drain() */
+	int (*q_drain)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 struct rte_flow_error *err);
+	/** See rte_flow_q_dequeue() */
+	int (*q_dequeue)
+		(struct rte_eth_dev *dev,
+		 uint32_t queue_id,
+		 struct rte_flow_q_op_res res[],
+		 uint16_t n_res,
+		 struct rte_flow_error *error);
 };
 
 /**
diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map
index cfd5e2a3e4..d705e36c90 100644
--- a/lib/ethdev/version.map
+++ b/lib/ethdev/version.map
@@ -265,6 +265,13 @@  EXPERIMENTAL {
 	rte_flow_action_template_destroy;
 	rte_flow_table_create;
 	rte_flow_table_destroy;
+	rte_flow_q_flow_create;
+	rte_flow_q_flow_destroy;
+	rte_flow_q_action_handle_create;
+	rte_flow_q_action_handle_destroy;
+	rte_flow_q_action_handle_update;
+	rte_flow_q_drain;
+	rte_flow_q_dequeue;
 };
 
 INTERNAL {