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From: Andrey Vesnovaty <andreyv@mellanox.com>
To: dev@dpdk.org
Cc: jer@marvell.com, jerinjacobk@gmail.com, thomas@monjalon.net,
	ferruh.yigit@intel.com, stephen@networkplumber.org,
	bruce.richardson@intel.com, orika@mellanox.com,
	viacheslavo@mellanox.com, andrey.vesnovaty@gmail.com,
	Marko Kovacevic <marko.kovacevic@intel.com>,
	Radu Nicolau <radu.nicolau@intel.com>,
	Akhil Goyal <akhil.goyal@nxp.com>,
	Tomasz Kantecki <tomasz.kantecki@intel.com>,
	Sunil Kumar Kori <skori@marvell.com>,
	Pavan Nikhilesh <pbhagavatula@marvell.com>,
	John McNamara <john.mcnamara@intel.com>
Subject: [dpdk-dev] [PATCH v2 6/6] examples/flow_filtering: utilize shared RSS action
Date: Thu,  9 Jul 2020 00:39:45 +0300
Message-ID: <20200708213946.30108-7-andreyv@mellanox.com> (raw)
In-Reply-To: <20200708213946.30108-1-andreyv@mellanox.com>

This commit gives very first shared RSS action usage example and
demonstrates shared action capability for in-place update.

First application creates shared action during initialization phase.
Later on the flow object created by application uses previously created
shared RSS action with 1 queue configured instead of queue action in
original application.

On each RX queue burst shared RSS action reconfigured via
rte_flow_shared_action_update() API to switch queue 0 to 1 & 1 to 0.
User supposed to observe consistent queue switches on each packet burst.

Signed-off-by: Andrey Vesnovaty <andreyv@mellanox.com>
---
 doc/guides/sample_app_ug/flow_filtering.rst | 62 +++++++++++++++++----
 examples/flow_filtering/flow_blocks.c       | 30 +++++-----
 examples/flow_filtering/main.c              | 41 +++++++++++++-
 3 files changed, 105 insertions(+), 28 deletions(-)

diff --git a/doc/guides/sample_app_ug/flow_filtering.rst b/doc/guides/sample_app_ug/flow_filtering.rst
index 5e5a6cd8a0..cfe9334717 100644
--- a/doc/guides/sample_app_ug/flow_filtering.rst
+++ b/doc/guides/sample_app_ug/flow_filtering.rst
@@ -106,7 +106,7 @@ following code:
 .. code-block:: c
 
    /* create flow for send packet with */
-   flow = generate_ipv4_flow(port_id, selected_queue,
+   flow = generate_ipv4_flow(port_id, shared_action,
                                 SRC_IP, EMPTY_MASK,
                                 DEST_IP, FULL_MASK, &error);
    if (!flow) {
@@ -242,7 +242,7 @@ The Ethernet port is configured with default settings using the
    rxq_conf = dev_info.default_rxconf;
    rxq_conf.offloads = port_conf.rxmode.offloads;
 
-For this example we are configuring number of rx and tx queues that are connected
+For this example we are configuring 2 rx and 2 tx queues that are connected
 to a single port.
 
 .. code-block:: c
@@ -270,13 +270,22 @@ to a single port.
           }
    }
 
+Before we create the flow we create shared action in order to send it as
+actions argument when creating a flow. The action is single queue RSS action
+similar to action queue with the only difference that shared RSS action
+provides update capability after action creation.
+
+.. code-block:: c
+
+   shared_action = rte_flow_shared_action_create(port_id, &action, &error);
+
 In the next step we create and apply the flow rule. which is to send packets
 with destination ip equals to 192.168.1.1 to queue number 1. The detail
 explanation of the ``generate_ipv4_flow()`` appears later in this document:
 
 .. code-block:: c
 
-   flow = generate_ipv4_flow(port_id, selected_queue,
+   flow = generate_ipv4_flow(port_id, shared_action,
                              SRC_IP, EMPTY_MASK,
                              DEST_IP, FULL_MASK, &error);
 
@@ -339,6 +348,21 @@ looks like the following:
                                            printf("\n");
                                            rte_pktmbuf_free(m);
                                    }
+                                   if (rss_queue[0] == 0) {
+                                           printf(">>> switching queue 0 -> 1\n");
+                                           rss_queue[0] = 1;
+                                   } else {
+                                           printf(">>> switching queue 1 -> 0\n");
+                                           rss_queue[0] = 0;
+                                   }
+                                   ret = rte_flow_shared_action_update
+                                           (port_id, shared_action, &action,
+                                            &error);
+                                   if (ret)
+                                           rte_exit(EXIT_FAILURE,
+                                                    ":: error: RSS action update "
+                                                    "failed: %s\n",
+                                                    rte_strerror(-ret));
                            }
                    }
            }
@@ -348,6 +372,8 @@ looks like the following:
            rte_eth_dev_close(port_id);
    }
 
+On each loop eteration Rx queue switched using
+``rte_flow_shared_action_update()`` API.
 The main work of the application is reading the packets from all
 queues and printing for each packet the destination queue:
 
@@ -365,6 +391,21 @@ queues and printing for each packet the destination queue:
                              printf(" - queue=0x%x", (unsigned int)i);
                              printf("\n");
                              rte_pktmbuf_free(m);
+                             if (rss_queue[0] == 0) {
+                                     printf(">>> switching queue 0 -> 1\n");
+                                     rss_queue[0] = 1;
+                             } else {
+                                     printf(">>> switching queue 1 -> 0\n");
+                                     rss_queue[0] = 0;
+                             }
+                             ret = rte_flow_shared_action_update
+                                     (port_id, shared_action, &action,
+                                      &error);
+                             if (ret)
+                                     rte_exit(EXIT_FAILURE,
+                                              ":: error: RSS action update "
+                                              "failed: %s\n",
+                                              rte_strerror(-ret));
                         }
                 }
            }
@@ -378,13 +419,15 @@ The forwarding loop can be interrupted and the application closed using
 The generate_ipv4_flow function
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+
 The generate_ipv4_flow function is responsible for creating the flow rule.
 This function is located in the ``flow_blocks.c`` file.
 
 .. code-block:: c
 
    static struct rte_flow *
-   generate_ipv4_flow(uint8_t port_id, uint16_t rx_q,
+   generate_ipv4_flow(uint8_t port_id,
+                   cstructrte_flow_shared_action *shared_action,
                    uint32_t src_ip, uint32_t src_mask,
                    uint32_t dest_ip, uint32_t dest_mask,
                    struct rte_flow_error *error)
@@ -393,7 +436,6 @@ This function is located in the ``flow_blocks.c`` file.
            struct rte_flow_item pattern[MAX_PATTERN_NUM];
            struct rte_flow_action action[MAX_ACTION_NUM];
            struct rte_flow *flow = NULL;
-           struct rte_flow_action_queue queue = { .index = rx_q };
            struct rte_flow_item_ipv4 ip_spec;
            struct rte_flow_item_ipv4 ip_mask;
 
@@ -411,8 +453,8 @@ This function is located in the ``flow_blocks.c`` file.
             * create the action sequence.
             * one action only,  move packet to queue
             */
-           action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
-           action[0].conf = &queue;
+           action[0].type = RTE_FLOW_ACTION_TYPE_SHARED;
+           action[0].conf = shared_action;
            action[1].type = RTE_FLOW_ACTION_TYPE_END;
 
            /*
@@ -468,12 +510,12 @@ The following part create the flow attributes, in our case ingress.
    attr.ingress = 1;
 
 The third part defines the action to be taken when a packet matches
-the rule. In this case send the packet to queue.
+the rule. In this case send the packet to single RSS queue.
 
 .. code-block:: c
 
-   action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
-   action[0].conf = &queue;
+   action[0].type = RTE_FLOW_ACTION_TYPE_SHARED;
+   action[0].conf = shared_action;
    action[1].type = RTE_FLOW_ACTION_TYPE_END;
 
 The fourth part is responsible for creating the pattern and is built from
diff --git a/examples/flow_filtering/flow_blocks.c b/examples/flow_filtering/flow_blocks.c
index 575d792810..99bfed3172 100644
--- a/examples/flow_filtering/flow_blocks.c
+++ b/examples/flow_filtering/flow_blocks.c
@@ -6,11 +6,11 @@
 #define MAX_ACTION_NUM		2
 
 struct rte_flow *
-generate_ipv4_flow(uint16_t port_id, uint16_t rx_q,
-		uint32_t src_ip, uint32_t src_mask,
-		uint32_t dest_ip, uint32_t dest_mask,
-		struct rte_flow_error *error);
-
+generate_ipv4_flow(uint16_t port_id,
+		   struct rte_flow_shared_action *shared_action,
+		   uint32_t src_ip, uint32_t src_mask,
+		   uint32_t dest_ip, uint32_t dest_mask,
+		   struct rte_flow_error *error);
 
 /**
  * create a flow rule that sends packets with matching src and dest ip
@@ -18,8 +18,8 @@ generate_ipv4_flow(uint16_t port_id, uint16_t rx_q,
  *
  * @param port_id
  *   The selected port.
- * @param rx_q
- *   The selected target queue.
+ * @param shared_action
+ *   The shared RSS action with single queue
  * @param src_ip
  *   The src ip value to match the input packet.
  * @param src_mask
@@ -35,16 +35,16 @@ generate_ipv4_flow(uint16_t port_id, uint16_t rx_q,
  *   A flow if the rule could be created else return NULL.
  */
 struct rte_flow *
-generate_ipv4_flow(uint16_t port_id, uint16_t rx_q,
-		uint32_t src_ip, uint32_t src_mask,
-		uint32_t dest_ip, uint32_t dest_mask,
-		struct rte_flow_error *error)
+generate_ipv4_flow(uint16_t port_id,
+		   struct rte_flow_shared_action *shared_action,
+		   uint32_t src_ip, uint32_t src_mask,
+		   uint32_t dest_ip, uint32_t dest_mask,
+		   struct rte_flow_error *error)
 {
 	struct rte_flow_attr attr;
 	struct rte_flow_item pattern[MAX_PATTERN_NUM];
 	struct rte_flow_action action[MAX_ACTION_NUM];
 	struct rte_flow *flow = NULL;
-	struct rte_flow_action_queue queue = { .index = rx_q };
 	struct rte_flow_item_ipv4 ip_spec;
 	struct rte_flow_item_ipv4 ip_mask;
 	int res;
@@ -61,10 +61,10 @@ generate_ipv4_flow(uint16_t port_id, uint16_t rx_q,
 
 	/*
 	 * create the action sequence.
-	 * one action only,  move packet to queue
+	 * one action only,  move packet to shared RSS queue
 	 */
-	action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
-	action[0].conf = &queue;
+	action[0].type = RTE_FLOW_ACTION_TYPE_SHARED;
+	action[0].conf = shared_action;
 	action[1].type = RTE_FLOW_ACTION_TYPE_END;
 
 	/*
diff --git a/examples/flow_filtering/main.c b/examples/flow_filtering/main.c
index cc9e7e7808..d6b18d95fc 100644
--- a/examples/flow_filtering/main.c
+++ b/examples/flow_filtering/main.c
@@ -32,8 +32,7 @@
 static volatile bool force_quit;
 
 static uint16_t port_id;
-static uint16_t nr_queues = 5;
-static uint8_t selected_queue = 1;
+static uint16_t nr_queues = 2;
 struct rte_mempool *mbuf_pool;
 struct rte_flow *flow;
 
@@ -42,6 +41,24 @@ struct rte_flow *flow;
 #define FULL_MASK 0xffffffff /* full mask */
 #define EMPTY_MASK 0x0 /* empty mask */
 
+struct rte_flow_shared_action *shared_action;
+uint16_t rss_queue[1] = {0};
+
+struct rte_flow_action_rss action_rss = {
+		.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
+		.level = 0,
+		.types = 0,
+		.key_len = 0,
+		.key = NULL,
+		.queue = rss_queue,
+		.queue_num = 1,
+};
+
+struct rte_flow_action action = {
+	.type = RTE_FLOW_ACTION_TYPE_RSS,
+	.conf = &action_rss,
+};
+
 #include "flow_blocks.c"
 
 static inline void
@@ -61,6 +78,7 @@ main_loop(void)
 	uint16_t nb_rx;
 	uint16_t i;
 	uint16_t j;
+	int ret;
 
 	while (!force_quit) {
 		for (i = 0; i < nr_queues; i++) {
@@ -82,6 +100,21 @@ main_loop(void)
 
 					rte_pktmbuf_free(m);
 				}
+				if (rss_queue[0] == 0) {
+					printf(">>> switching queue 0 -> 1\n");
+					rss_queue[0] = 1;
+				} else {
+					printf(">>> switching queue 1 -> 0\n");
+					rss_queue[0] = 0;
+				}
+				ret = rte_flow_shared_action_update
+					(port_id, shared_action, &action,
+					 &error);
+				if (ret)
+					rte_exit(EXIT_FAILURE,
+						 ":: error: RSS action update "
+						 "failed: %s\n",
+						 rte_strerror(-ret));
 			}
 		}
 	}
@@ -243,8 +276,10 @@ main(int argc, char **argv)
 
 	init_port();
 
+	shared_action = rte_flow_shared_action_create(port_id, &action, &error);
+
 	/* create flow for send packet with */
-	flow = generate_ipv4_flow(port_id, selected_queue,
+	flow = generate_ipv4_flow(port_id, shared_action,
 				SRC_IP, EMPTY_MASK,
 				DEST_IP, FULL_MASK, &error);
 	if (!flow) {
-- 
2.26.2


  parent reply	other threads:[~2020-07-08 21:40 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-02 12:05 [dpdk-dev] [PATCH] add flow shared action API Andrey Vesnovaty
2020-07-03 15:02 ` Jerin Jacob
2020-07-03 15:21   ` Thomas Monjalon
2020-07-04  9:54     ` Andrey Vesnovaty
2020-07-04 10:10   ` Andrey Vesnovaty
2020-07-04 12:33     ` Jerin Jacob
2020-07-05 10:26       ` Ori Kam
2020-07-06  9:00         ` Jerin Jacob
2020-07-06 12:28           ` Ori Kam
2020-07-06 13:32             ` Andrey Vesnovaty
2020-07-07  2:30               ` Jerin Jacob
2020-07-07  6:21                 ` Ori Kam
2020-07-07 15:21                   ` Ferruh Yigit
2020-07-07 17:24                     ` Ori Kam
2020-07-07 17:52                       ` Ferruh Yigit
2020-07-07 19:38                   ` Jerin Jacob
2020-07-07 21:03                     ` Ori Kam
2020-07-08  9:25                       ` Jerin Jacob
2020-07-08  9:47                         ` Ori Kam
2020-07-08 11:00                           ` Jerin Jacob
2020-07-08 11:50                             ` Thomas Monjalon
2020-07-08 12:18                             ` Ori Kam
     [not found]                               ` <20200708204015.24429-2-andreyv@mellanox.com>
2020-07-13  8:04                                 ` [dpdk-dev] [PATCH v2 1/6] ethdev: " Kinsella, Ray
2020-07-13 10:16                                   ` Andrew Rybchenko
2020-07-15  8:54                                   ` Andrew Rybchenko
2020-07-15  9:00                                     ` Andrew Rybchenko
2020-09-15 11:30                                     ` Andrey Vesnovaty
     [not found]                               ` <20200708204015.24429-3-andreyv@mellanox.com>
2020-07-13  8:06                                 ` [dpdk-dev] [PATCH v2 2/6] common/mlx5: modify advanced Rx object via DevX Kinsella, Ray
2020-07-08 21:39 ` [dpdk-dev] [PATCH v2 0/6] add flow shared action API + PMD Andrey Vesnovaty
2020-07-08 21:39   ` [dpdk-dev] [PATCH v2 1/6] ethdev: add flow shared action API Andrey Vesnovaty
2020-09-12  2:18     ` Ajit Khaparde
2020-09-15 11:50       ` Andrey Vesnovaty
2020-09-15 15:49         ` Ajit Khaparde
2020-09-16 15:52           ` Andrey Vesnovaty
2020-09-16 19:20             ` Ajit Khaparde
2020-09-17 15:33               ` Andrew Rybchenko
2020-09-17 16:02                 ` Ori Kam
2020-09-24 19:25                   ` Ajit Khaparde
2020-09-26 11:09                     ` Andrey Vesnovaty
2020-10-03 22:06                       ` [dpdk-dev] [PATCH v3 00/10] RTE flow shared action Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 01/10] ethdev: add flow shared action API Andrey Vesnovaty
2020-10-04 11:10                           ` Ori Kam
2020-10-06 10:22                             ` Andrey Vesnovaty
2020-10-04 17:00                           ` Stephen Hemminger
2020-10-04 17:01                             ` Stephen Hemminger
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 02/10] ethdev: add conf arg to shared action icreate API Andrey Vesnovaty
2020-10-04 11:11                           ` Ori Kam
2020-10-06 10:28                             ` Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 03/10] common/mlx5: modify advanced Rx object via DevX Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 04/10] net/mlx5: modify hash Rx queue objects Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 05/10] net/mlx5: shared action PMD Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 06/10] net/mlx5: shared action PMD create conf arg Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 07/10] net/mlx5: driver support for shared action Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 08/10] net/mlx5: shared action create conf drv support Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 09/10] examples/flow_filtering: utilize shared RSS action Andrey Vesnovaty
2020-10-04 11:21                           ` Ori Kam
2020-10-06 10:34                             ` Andrey Vesnovaty
2020-10-03 22:06                         ` [dpdk-dev] [PATCH v3 10/10] app/testpmd: support shared action Andrey Vesnovaty
2020-10-04 11:28                           ` Ori Kam
2020-10-04 12:04                             ` Ori Kam
2020-10-06 10:36                               ` Andrey Vesnovaty
2020-10-04 11:14                         ` [dpdk-dev] [PATCH v3 00/10] RTE flow " Ori Kam
2020-10-06 10:28                           ` Andrey Vesnovaty
2020-07-08 21:39   ` [dpdk-dev] [PATCH v2 2/6] common/mlx5: modify advanced Rx object via DevX Andrey Vesnovaty
2020-07-08 21:39   ` [dpdk-dev] [PATCH v2 3/6] net/mlx5: modify hash Rx queue objects Andrey Vesnovaty
2020-07-08 21:39   ` [dpdk-dev] [PATCH v2 4/6] net/mlx5: shared action PMD Andrey Vesnovaty
2020-07-08 21:39   ` [dpdk-dev] [PATCH v2 5/6] net/mlx5: driver support for shared action Andrey Vesnovaty
2020-07-08 21:39   ` Andrey Vesnovaty [this message]
2020-07-09  4:44     ` [dpdk-dev] [PATCH v2 6/6] examples/flow_filtering: utilize shared RSS action Jerin Jacob
2020-07-09  6:08       ` Ori Kam
2020-07-09 12:25         ` Andrey Vesnovaty
2020-07-09 12:39           ` Thomas Monjalon
2020-07-09  4:39   ` [dpdk-dev] [PATCH v2 0/6] add flow shared action API + PMD Jerin Jacob
2020-10-06 20:08 ` [dpdk-dev] [PATCH v4 0/2] RTE flow shared action Andrey Vesnovaty
2020-10-06 20:08   ` [dpdk-dev] [PATCH v4 1/2] ethdev: add flow shared action API Andrey Vesnovaty
2020-10-07  6:27     ` Ori Kam
2020-10-06 20:08   ` [dpdk-dev] [PATCH v4 2/2] app/testpmd: support shared action Andrey Vesnovaty
2020-10-07  6:30     ` Ori Kam
2020-10-07 12:56 ` [dpdk-dev] [PATCH v5 0/2] RTE flow " Andrey Vesnovaty
2020-10-07 12:56   ` [dpdk-dev] [PATCH v5 1/2] ethdev: add flow shared action API Andrey Vesnovaty
2020-10-07 13:01     ` Ori Kam
2020-10-07 21:23     ` Ajit Khaparde
2020-10-08  7:28       ` Andrey Vesnovaty
2020-10-07 12:56   ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: support shared action Andrey Vesnovaty
2020-10-07 18:36 ` [dpdk-dev] [PATCH v6 0/2] RTE flow " Andrey Vesnovaty
2020-10-07 18:36   ` [dpdk-dev] [PATCH v6 1/2] ethdev: add flow shared action API Andrey Vesnovaty
2020-10-07 18:36   ` [dpdk-dev] [PATCH v6 2/2] app/testpmd: support shared action Andrey Vesnovaty
2020-10-07 20:01     ` Ajit Khaparde
2020-10-08 10:58       ` Andrey Vesnovaty
2020-10-08 11:51 ` [dpdk-dev] [PATCH v7 0/2] RTE flow " Andrey Vesnovaty
2020-10-08 11:51   ` [dpdk-dev] [PATCH v7 1/2] ethdev: add flow shared action API Andrey Vesnovaty
2020-10-08 22:30     ` Ajit Khaparde
2020-10-14 11:47       ` Andrey Vesnovaty
2020-10-12 14:19     ` Andrew Rybchenko
2020-10-13 20:06       ` Andrey Vesnovaty
2020-10-14  6:49         ` Andrew Rybchenko
2020-10-14  7:22           ` Thomas Monjalon
2020-10-14 11:43             ` Andrey Vesnovaty
2020-10-14 11:42           ` Andrey Vesnovaty
2020-10-08 11:51   ` [dpdk-dev] [PATCH v7 2/2] app/testpmd: support shared action Andrey Vesnovaty
2020-10-08 23:54     ` Ajit Khaparde
2020-10-14 11:40 ` [dpdk-dev] [PATCH v8 0/2] RTE flow " Andrey Vesnovaty
2020-10-14 11:40   ` [dpdk-dev] [PATCH v8 1/2] ethdev: add shared actions to flow API Andrey Vesnovaty
2020-10-14 11:44     ` Andrew Rybchenko
2020-10-14 16:17       ` Ferruh Yigit
2020-10-14 11:40   ` [dpdk-dev] [PATCH v8 2/2] app/testpmd: support shared action Andrey Vesnovaty

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