[dpdk-dev] [PATCH v8 6/7] examples/eventdev_pipeline: add new Rx RSS hash offload

[<pbhagavatula@marvell.com>]

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Since pipeline_generic uses `rte_mbuf::hash::rss` add the new Rx offload
flag `DEV_RX_OFFLOAD_RSS_HASH` to inform PMD to copy the RSS hash result
into the mbuf.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 examples/eventdev_pipeline/main.c             | 113 -----------------
 .../pipeline_worker_generic.c                 | 118 ++++++++++++++++++
 .../eventdev_pipeline/pipeline_worker_tx.c    | 114 +++++++++++++++++
 3 files changed, 232 insertions(+), 113 deletions(-)

diff --git a/examples/eventdev_pipeline/main.c b/examples/eventdev_pipeline/main.c
index f4e57f541..a73b61d59 100644
--- a/examples/eventdev_pipeline/main.c
+++ b/examples/eventdev_pipeline/main.c
@@ -242,118 +242,6 @@ parse_app_args(int argc, char **argv)
 	}
 }
 
-/*
- * Initializes a given port using global settings and with the RX buffers
- * coming from the mbuf_pool passed as a parameter.
- */
-static inline int
-port_init(uint8_t port, struct rte_mempool *mbuf_pool)
-{
-	struct rte_eth_rxconf rx_conf;
-	static const struct rte_eth_conf port_conf_default = {
-		.rxmode = {
-			.mq_mode = ETH_MQ_RX_RSS,
-			.max_rx_pkt_len = RTE_ETHER_MAX_LEN,
-		},
-		.rx_adv_conf = {
-			.rss_conf = {
-				.rss_hf = ETH_RSS_IP |
-					  ETH_RSS_TCP |
-					  ETH_RSS_UDP,
-			}
-		}
-	};
-	const uint16_t rx_rings = 1, tx_rings = 1;
-	const uint16_t rx_ring_size = 512, tx_ring_size = 512;
-	struct rte_eth_conf port_conf = port_conf_default;
-	int retval;
-	uint16_t q;
-	struct rte_eth_dev_info dev_info;
-	struct rte_eth_txconf txconf;
-
-	if (!rte_eth_dev_is_valid_port(port))
-		return -1;
-
-	rte_eth_dev_info_get(port, &dev_info);
-	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
-		port_conf.txmode.offloads |=
-			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
-	rx_conf = dev_info.default_rxconf;
-	rx_conf.offloads = port_conf.rxmode.offloads;
-
-	port_conf.rx_adv_conf.rss_conf.rss_hf &=
-		dev_info.flow_type_rss_offloads;
-	if (port_conf.rx_adv_conf.rss_conf.rss_hf !=
-			port_conf_default.rx_adv_conf.rss_conf.rss_hf) {
-		printf("Port %u modified RSS hash function based on hardware support,"
-			"requested:%#"PRIx64" configured:%#"PRIx64"\n",
-			port,
-			port_conf_default.rx_adv_conf.rss_conf.rss_hf,
-			port_conf.rx_adv_conf.rss_conf.rss_hf);
-	}
-
-	/* Configure the Ethernet device. */
-	retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
-	if (retval != 0)
-		return retval;
-
-	/* Allocate and set up 1 RX queue per Ethernet port. */
-	for (q = 0; q < rx_rings; q++) {
-		retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
-				rte_eth_dev_socket_id(port), &rx_conf,
-				mbuf_pool);
-		if (retval < 0)
-			return retval;
-	}
-
-	txconf = dev_info.default_txconf;
-	txconf.offloads = port_conf_default.txmode.offloads;
-	/* Allocate and set up 1 TX queue per Ethernet port. */
-	for (q = 0; q < tx_rings; q++) {
-		retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
-				rte_eth_dev_socket_id(port), &txconf);
-		if (retval < 0)
-			return retval;
-	}
-
-	/* Display the port MAC address. */
-	struct rte_ether_addr addr;
-	rte_eth_macaddr_get(port, &addr);
-	printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
-			   " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
-			(unsigned int)port,
-			addr.addr_bytes[0], addr.addr_bytes[1],
-			addr.addr_bytes[2], addr.addr_bytes[3],
-			addr.addr_bytes[4], addr.addr_bytes[5]);
-
-	/* Enable RX in promiscuous mode for the Ethernet device. */
-	rte_eth_promiscuous_enable(port);
-
-	return 0;
-}
-
-static int
-init_ports(uint16_t num_ports)
-{
-	uint16_t portid;
-
-	if (!cdata.num_mbuf)
-		cdata.num_mbuf = 16384 * num_ports;
-
-	struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool",
-			/* mbufs */ cdata.num_mbuf,
-			/* cache_size */ 512,
-			/* priv_size*/ 0,
-			/* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE,
-			rte_socket_id());
-
-	RTE_ETH_FOREACH_DEV(portid)
-		if (port_init(portid, mp) != 0)
-			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n",
-					portid);
-
-	return 0;
-}
 
 static void
 do_capability_setup(uint8_t eventdev_id)
@@ -501,7 +389,6 @@ main(int argc, char **argv)
 	if (dev_id < 0)
 		rte_exit(EXIT_FAILURE, "Error setting up eventdev\n");
 
-	init_ports(num_ports);
 	fdata->cap.adptr_setup(num_ports);
 
 	/* Start the Ethernet port. */
diff --git a/examples/eventdev_pipeline/pipeline_worker_generic.c b/examples/eventdev_pipeline/pipeline_worker_generic.c
index 766c8e958..aa1678fe7 100644
--- a/examples/eventdev_pipeline/pipeline_worker_generic.c
+++ b/examples/eventdev_pipeline/pipeline_worker_generic.c
@@ -271,6 +271,123 @@ setup_eventdev_generic(struct worker_data *worker_data)
 	return dev_id;
 }
 
+/*
+ * Initializes a given port using global settings and with the RX buffers
+ * coming from the mbuf_pool passed as a parameter.
+ */
+static inline int
+port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+{
+	struct rte_eth_rxconf rx_conf;
+	static const struct rte_eth_conf port_conf_default = {
+		.rxmode = {
+			.mq_mode = ETH_MQ_RX_RSS,
+			.max_rx_pkt_len = RTE_ETHER_MAX_LEN,
+		},
+		.rx_adv_conf = {
+			.rss_conf = {
+				.rss_hf = ETH_RSS_IP |
+					  ETH_RSS_TCP |
+					  ETH_RSS_UDP,
+			}
+		}
+	};
+	const uint16_t rx_rings = 1, tx_rings = 1;
+	const uint16_t rx_ring_size = 512, tx_ring_size = 512;
+	struct rte_eth_conf port_conf = port_conf_default;
+	int retval;
+	uint16_t q;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf txconf;
+
+	if (!rte_eth_dev_is_valid_port(port))
+		return -1;
+
+	rte_eth_dev_info_get(port, &dev_info);
+	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+		port_conf.txmode.offloads |=
+			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+
+	if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_RSS_HASH)
+		port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
+
+	rx_conf = dev_info.default_rxconf;
+	rx_conf.offloads = port_conf.rxmode.offloads;
+
+	port_conf.rx_adv_conf.rss_conf.rss_hf &=
+		dev_info.flow_type_rss_offloads;
+	if (port_conf.rx_adv_conf.rss_conf.rss_hf !=
+			port_conf_default.rx_adv_conf.rss_conf.rss_hf) {
+		printf("Port %u modified RSS hash function based on hardware support,"
+			"requested:%#"PRIx64" configured:%#"PRIx64"\n",
+			port,
+			port_conf_default.rx_adv_conf.rss_conf.rss_hf,
+			port_conf.rx_adv_conf.rss_conf.rss_hf);
+	}
+
+	/* Configure the Ethernet device. */
+	retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
+	if (retval != 0)
+		return retval;
+
+	/* Allocate and set up 1 RX queue per Ethernet port. */
+	for (q = 0; q < rx_rings; q++) {
+		retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
+				rte_eth_dev_socket_id(port), &rx_conf,
+				mbuf_pool);
+		if (retval < 0)
+			return retval;
+	}
+
+	txconf = dev_info.default_txconf;
+	txconf.offloads = port_conf_default.txmode.offloads;
+	/* Allocate and set up 1 TX queue per Ethernet port. */
+	for (q = 0; q < tx_rings; q++) {
+		retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
+				rte_eth_dev_socket_id(port), &txconf);
+		if (retval < 0)
+			return retval;
+	}
+
+	/* Display the port MAC address. */
+	struct rte_ether_addr addr;
+	rte_eth_macaddr_get(port, &addr);
+	printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
+			   " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
+			(unsigned int)port,
+			addr.addr_bytes[0], addr.addr_bytes[1],
+			addr.addr_bytes[2], addr.addr_bytes[3],
+			addr.addr_bytes[4], addr.addr_bytes[5]);
+
+	/* Enable RX in promiscuous mode for the Ethernet device. */
+	rte_eth_promiscuous_enable(port);
+
+	return 0;
+}
+
+static int
+init_ports(uint16_t num_ports)
+{
+	uint16_t portid;
+
+	if (!cdata.num_mbuf)
+		cdata.num_mbuf = 16384 * num_ports;
+
+	struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool",
+			/* mbufs */ cdata.num_mbuf,
+			/* cache_size */ 512,
+			/* priv_size*/ 0,
+			/* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE,
+			rte_socket_id());
+
+	RTE_ETH_FOREACH_DEV(portid)
+		if (port_init(portid, mp) != 0)
+			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n",
+					portid);
+
+	return 0;
+}
+
 static void
 init_adapters(uint16_t nb_ports)
 {
@@ -297,6 +414,7 @@ init_adapters(uint16_t nb_ports)
 		adptr_p_conf.enqueue_depth =
 			dev_info.max_event_port_enqueue_depth;
 
+	init_ports(nb_ports);
 	/* Create one adapter for all the ethernet ports. */
 	ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
 			&adptr_p_conf);
diff --git a/examples/eventdev_pipeline/pipeline_worker_tx.c b/examples/eventdev_pipeline/pipeline_worker_tx.c
index 8961cd656..52a1b4174 100644
--- a/examples/eventdev_pipeline/pipeline_worker_tx.c
+++ b/examples/eventdev_pipeline/pipeline_worker_tx.c
@@ -603,6 +603,119 @@ service_rx_adapter(void *arg)
 	return 0;
 }
 
+/*
+ * Initializes a given port using global settings and with the RX buffers
+ * coming from the mbuf_pool passed as a parameter.
+ */
+static inline int
+port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+{
+	struct rte_eth_rxconf rx_conf;
+	static const struct rte_eth_conf port_conf_default = {
+		.rxmode = {
+			.mq_mode = ETH_MQ_RX_RSS,
+			.max_rx_pkt_len = RTE_ETHER_MAX_LEN,
+		},
+		.rx_adv_conf = {
+			.rss_conf = {
+				.rss_hf = ETH_RSS_IP |
+					  ETH_RSS_TCP |
+					  ETH_RSS_UDP,
+			}
+		}
+	};
+	const uint16_t rx_rings = 1, tx_rings = 1;
+	const uint16_t rx_ring_size = 512, tx_ring_size = 512;
+	struct rte_eth_conf port_conf = port_conf_default;
+	int retval;
+	uint16_t q;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf txconf;
+
+	if (!rte_eth_dev_is_valid_port(port))
+		return -1;
+
+	rte_eth_dev_info_get(port, &dev_info);
+	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+		port_conf.txmode.offloads |=
+			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+	rx_conf = dev_info.default_rxconf;
+	rx_conf.offloads = port_conf.rxmode.offloads;
+
+	port_conf.rx_adv_conf.rss_conf.rss_hf &=
+		dev_info.flow_type_rss_offloads;
+	if (port_conf.rx_adv_conf.rss_conf.rss_hf !=
+			port_conf_default.rx_adv_conf.rss_conf.rss_hf) {
+		printf("Port %u modified RSS hash function based on hardware support,"
+			"requested:%#"PRIx64" configured:%#"PRIx64"\n",
+			port,
+			port_conf_default.rx_adv_conf.rss_conf.rss_hf,
+			port_conf.rx_adv_conf.rss_conf.rss_hf);
+	}
+
+	/* Configure the Ethernet device. */
+	retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
+	if (retval != 0)
+		return retval;
+
+	/* Allocate and set up 1 RX queue per Ethernet port. */
+	for (q = 0; q < rx_rings; q++) {
+		retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
+				rte_eth_dev_socket_id(port), &rx_conf,
+				mbuf_pool);
+		if (retval < 0)
+			return retval;
+	}
+
+	txconf = dev_info.default_txconf;
+	txconf.offloads = port_conf_default.txmode.offloads;
+	/* Allocate and set up 1 TX queue per Ethernet port. */
+	for (q = 0; q < tx_rings; q++) {
+		retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
+				rte_eth_dev_socket_id(port), &txconf);
+		if (retval < 0)
+			return retval;
+	}
+
+	/* Display the port MAC address. */
+	struct rte_ether_addr addr;
+	rte_eth_macaddr_get(port, &addr);
+	printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
+			   " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
+			(unsigned int)port,
+			addr.addr_bytes[0], addr.addr_bytes[1],
+			addr.addr_bytes[2], addr.addr_bytes[3],
+			addr.addr_bytes[4], addr.addr_bytes[5]);
+
+	/* Enable RX in promiscuous mode for the Ethernet device. */
+	rte_eth_promiscuous_enable(port);
+
+	return 0;
+}
+
+static int
+init_ports(uint16_t num_ports)
+{
+	uint16_t portid;
+
+	if (!cdata.num_mbuf)
+		cdata.num_mbuf = 16384 * num_ports;
+
+	struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool",
+			/* mbufs */ cdata.num_mbuf,
+			/* cache_size */ 512,
+			/* priv_size*/ 0,
+			/* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE,
+			rte_socket_id());
+
+	RTE_ETH_FOREACH_DEV(portid)
+		if (port_init(portid, mp) != 0)
+			rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n",
+					portid);
+
+	return 0;
+}
+
 static void
 init_adapters(uint16_t nb_ports)
 {
@@ -621,6 +734,7 @@ init_adapters(uint16_t nb_ports)
 		.new_event_threshold = 4096,
 	};
 
+	init_ports(nb_ports);
 	if (adptr_p_conf.new_event_threshold > dev_info.max_num_events)
 		adptr_p_conf.new_event_threshold = dev_info.max_num_events;
 	if (adptr_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
-- 
2.17.1