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From: Anoob Joseph <anoobj@marvell.com>
To: Jerin Jacob <jerinj@marvell.com>,
	Nikhil Rao <nikhil.rao@intel.com>,
	"Erik Gabriel Carrillo" <erik.g.carrillo@intel.com>,
	Abhinandan Gujjar <abhinandan.gujjar@intel.com>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Pablo de Lara <pablo.de.lara.guarch@intel.com>
Cc: "Anoob Joseph" <anoobj@marvell.com>,
	"Narayana Prasad" <pathreya@marvell.com>,
	dev@dpdk.org, "Lukasz Bartosik" <lbartosik@marvell.com>,
	"Pavan Nikhilesh" <pbhagavatula@marvell.com>,
	"Hemant Agrawal" <hemant.agrawal@nxp.com>,
	"Nipun Gupta" <nipun.gupta@nxp.com>,
	"Harry van Haaren" <harry.van.haaren@intel.com>,
	"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
	"Liang Ma" <liang.j.ma@intel.com>
Subject: [dpdk-dev] [PATCH 32/39] eventdev: add routine to launch eventmode workers
Date: Mon, 3 Jun 2019 23:02:32 +0530
Message-ID: <1559583160-13944-33-git-send-email-anoobj@marvell.com> (raw)
In-Reply-To: <1559583160-13944-1-git-send-email-anoobj@marvell.com>

With eventmode, workers could be drafted differently according to the
capabilities of the underlying event device. The added function would
receive an array of such workers and probes the eventmode properties to
choose the worker.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Lukasz Bartosik <lbartosik@marvell.com>
---
 lib/librte_eventdev/rte_eventdev_version.map       |   1 +
 lib/librte_eventdev/rte_eventmode_helper.c         | 240 +++++++++++++++++++++
 lib/librte_eventdev/rte_eventmode_helper.h         |  49 +++++
 .../rte_eventmode_helper_internal.h                |   3 +
 4 files changed, 293 insertions(+)

diff --git a/lib/librte_eventdev/rte_eventdev_version.map b/lib/librte_eventdev/rte_eventdev_version.map
index 3cf926a..665836e 100644
--- a/lib/librte_eventdev/rte_eventdev_version.map
+++ b/lib/librte_eventdev/rte_eventdev_version.map
@@ -135,4 +135,5 @@ EXPERIMENTAL {
 	rte_eventmode_helper_display_conf;
 	rte_eventmode_helper_get_event_lcore_links;
 	rte_eventmode_helper_get_tx_queue;
+	rte_eventmode_helper_launch_worker;
 };
diff --git a/lib/librte_eventdev/rte_eventmode_helper.c b/lib/librte_eventdev/rte_eventmode_helper.c
index e7670e0..77a5a4e 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.c
+++ b/lib/librte_eventdev/rte_eventmode_helper.c
@@ -2,6 +2,7 @@
  * Copyright (C) 2019 Marvell International Ltd.
  */
 #include <getopt.h>
+#include <stdbool.h>
 
 #include <rte_ethdev.h>
 #include <rte_eventdev.h>
@@ -13,6 +14,8 @@
 
 #define CMD_LINE_OPT_TRANSFER_MODE	"transfer-mode"
 
+static volatile bool eth_core_running;
+
 static const char short_options[] =
 	""
 	;
@@ -111,6 +114,16 @@ internal_get_eventdev_params(struct eventmode_conf *em_conf,
 	return &(em_conf->eventdev_config[i]);
 }
 
+static inline bool
+internal_dev_has_burst_mode(uint8_t dev_id)
+{
+	struct rte_event_dev_info dev_info;
+
+	rte_event_dev_info_get(dev_id, &dev_info);
+	return (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) ?
+			true : false;
+}
+
 /* Global functions */
 
 void __rte_experimental
@@ -980,3 +993,230 @@ rte_eventmode_helper_get_tx_queue(struct rte_eventmode_helper_conf *mode_conf,
 	return eventdev_config->nb_eventqueue - 1;
 }
 
+/* Helper functions for launching workers */
+
+static int32_t
+rte_eventmode_helper_start_worker_eth_core(struct eventmode_conf *em_conf,
+		uint32_t lcore_id)
+{
+	uint32_t service_id[EVENT_MODE_MAX_ADAPTERS_PER_RX_CORE];
+	struct rx_adapter_conf *rx_adapter;
+	int service_count = 0;
+	int adapter_id;
+	int32_t ret;
+	int i;
+
+	RTE_EM_HLPR_LOG_INFO(
+		"Entering eth_core processing on lcore %u", lcore_id);
+
+	/*
+	 * Need to parse adapter conf to see which of all Rx adapters need
+	 * to be handled by this core.
+	 */
+	for (i = 0; i < em_conf->nb_rx_adapter; i++) {
+		/* Check if we have exceeded the max allowed */
+		if (service_count > EVENT_MODE_MAX_ADAPTERS_PER_RX_CORE) {
+			RTE_EM_HLPR_LOG_ERR(
+				"Exceeded the max allowed adapters per rx core");
+			break;
+		}
+
+		rx_adapter = &(em_conf->rx_adapter[i]);
+		if (rx_adapter->rx_core_id != lcore_id)
+			continue;
+
+		/* Adapter need to be handled by this core */
+		adapter_id = rx_adapter->adapter_id;
+
+		/* Get the service ID for the adapters */
+		ret = rte_event_eth_rx_adapter_service_id_get(adapter_id,
+				&(service_id[service_count]));
+
+		if (ret != -ESRCH && ret != 0) {
+			RTE_EM_HLPR_LOG_ERR(
+				"Error getting service ID used by Rx adapter");
+			return ret;
+		}
+
+		/* Update service count */
+		service_count++;
+	}
+
+	eth_core_running = true;
+
+	while (eth_core_running) {
+		for (i = 0; i < service_count; i++) {
+			/* Initiate adapter service */
+			rte_service_run_iter_on_app_lcore(service_id[i], 0);
+		}
+	}
+
+	return 0;
+}
+
+static int32_t
+rte_eventmode_helper_stop_worker_eth_core(void)
+{
+	if (eth_core_running) {
+		RTE_EM_HLPR_LOG_INFO("Stopping rx cores\n");
+		eth_core_running = false;
+	}
+	return 0;
+}
+
+static struct rte_eventmode_helper_app_worker_params *
+rte_eventmode_helper_find_worker(uint32_t lcore_id,
+		struct eventmode_conf *em_conf,
+		struct rte_eventmode_helper_app_worker_params *app_wrkrs,
+		uint8_t nb_wrkr_param)
+{
+	struct rte_eventmode_helper_event_link_info *link = NULL;
+	uint8_t eventdev_id;
+	struct eventdev_params *eventdev_config;
+	int i;
+	struct rte_eventmode_helper_app_worker_params curr_conf = {
+			{{0} }, NULL};
+	struct rte_eventmode_helper_app_worker_params *tmp_wrkr;
+
+	/*
+	 * Event device to be used will be derived from the first lcore-event
+	 * link.
+	 *
+	 * Assumption: All lcore-event links tied to a core would be using the
+	 * same event device. in other words, one core would be polling on
+	 * queues of a single event device only.
+	 */
+
+	/* Get a link for this lcore */
+	for (i = 0; i < em_conf->nb_link; i++) {
+		link = &(em_conf->link[i]);
+		if (link->lcore_id == lcore_id)
+			break;
+	}
+
+	if (link == NULL) {
+		RTE_EM_HLPR_LOG_ERR(
+			"No valid link found for lcore(%d)", lcore_id);
+		return NULL;
+	}
+
+	/* Get event dev ID */
+	eventdev_id = link->eventdev_id;
+
+	/* Get the corresponding eventdev config */
+	eventdev_config = internal_get_eventdev_params(em_conf, eventdev_id);
+
+	/* Populate the curr_conf with the capabilities */
+
+	/* Check for burst mode */
+	if (internal_dev_has_burst_mode(eventdev_id))
+		curr_conf.cap.burst = RTE_EVENTMODE_HELPER_RX_TYPE_BURST;
+	else
+		curr_conf.cap.burst = RTE_EVENTMODE_HELPER_RX_TYPE_NON_BURST;
+
+	/* Now parse the passed list and see if we have matching capabilities */
+
+	/* Initialize the pointer used to traverse the list */
+	tmp_wrkr = app_wrkrs;
+
+	for (i = 0; i < nb_wrkr_param; i++, tmp_wrkr++) {
+
+		/* Skip this if capabilities are not matching */
+		if (tmp_wrkr->cap.u64 != curr_conf.cap.u64)
+			continue;
+
+		/* If the checks pass, we have a match */
+		return tmp_wrkr;
+	}
+
+	/* TODO required for ATQ */
+	RTE_SET_USED(eventdev_config);
+
+	return NULL;
+}
+
+static int
+rte_eventmode_helper_verify_match_worker(
+	struct rte_eventmode_helper_app_worker_params *match_wrkr)
+{
+	/* Verify registered worker */
+	if (match_wrkr->worker_thread == NULL) {
+		RTE_EM_HLPR_LOG_ERR("No worker registered for second stage");
+		return 0;
+	}
+
+	/* Success */
+	return 1;
+}
+
+void __rte_experimental
+rte_eventmode_helper_launch_worker(struct rte_eventmode_helper_conf *mode_conf,
+		struct rte_eventmode_helper_app_worker_params *app_wrkr,
+		uint8_t nb_wrkr_param)
+{
+	struct rte_eventmode_helper_app_worker_params *match_wrkr;
+	uint32_t lcore_id;
+	struct eventmode_conf *em_conf;
+
+	if (mode_conf == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid conf");
+		return;
+	}
+
+	if (mode_conf->mode_params == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid mode params");
+		return;
+	}
+
+	/* Get eventmode conf */
+	em_conf = (struct eventmode_conf *)(mode_conf->mode_params);
+
+	/* Get core ID */
+	lcore_id = rte_lcore_id();
+
+	/* TODO check capability for rx core */
+
+	/* Check if this is rx core */
+	if (em_conf->eth_core_mask & (1 << lcore_id)) {
+		rte_eventmode_helper_start_worker_eth_core(em_conf, lcore_id);
+		return;
+	}
+
+	if (app_wrkr == NULL || nb_wrkr_param == 0) {
+		RTE_EM_HLPR_LOG_ERR("Invalid args");
+		return;
+	}
+
+	/*
+	 * This is a regular worker thread. The application would be
+	 * registering multiple workers with various capabilities. The
+	 * worker to be run will be selected by the capabilities of the
+	 * event device configured.
+	 */
+
+	/* Get the first matching worker for the event device */
+	match_wrkr = rte_eventmode_helper_find_worker(lcore_id,
+			em_conf,
+			app_wrkr,
+			nb_wrkr_param);
+
+	if (match_wrkr == NULL) {
+		RTE_EM_HLPR_LOG_ERR(
+			"No matching worker registered for lcore %d", lcore_id);
+		goto clean_and_exit;
+	}
+
+	/* Verify sanity of the matched worker */
+	if (rte_eventmode_helper_verify_match_worker(match_wrkr) != 1) {
+		RTE_EM_HLPR_LOG_ERR("Error in validating the matched worker");
+		goto clean_and_exit;
+	}
+
+	/* Launch the worker thread */
+	match_wrkr->worker_thread(mode_conf);
+
+clean_and_exit:
+
+	/* Flag eth_cores to stop, if started */
+	rte_eventmode_helper_stop_worker_eth_core();
+}
diff --git a/lib/librte_eventdev/rte_eventmode_helper.h b/lib/librte_eventdev/rte_eventmode_helper.h
index cd6d708..1235ca4 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.h
+++ b/lib/librte_eventdev/rte_eventmode_helper.h
@@ -17,6 +17,20 @@ enum rte_eventmode_helper_pkt_transfer_mode {
 	RTE_EVENTMODE_HELPER_PKT_TRANSFER_MODE_EVENT,
 };
 
+/* Event mode packet rx types */
+enum rte_eventmode_helper_rx_types {
+	RTE_EVENTMODE_HELPER_RX_TYPE_INVALID = 0,
+	RTE_EVENTMODE_HELPER_RX_TYPE_NON_BURST,
+	RTE_EVENTMODE_HELPER_RX_TYPE_BURST,
+	RTE_EVENTMODE_HELPER_RX_TYPE_MAX = 16
+};
+
+/* Event mode packet tx types */
+enum rte_eventmode_helper_tx_types {
+	RTE_EVETNMODE_HELPER_TX_TYPE_INVALID = 0,
+	RTE_EVENTMODE_HELPER_TX_TYPE_MAX = 16
+};
+
 struct rte_eventmode_helper_conf {
 	enum rte_eventmode_helper_pkt_transfer_mode mode;
 		/**< Packet transfer mode of the application */
@@ -41,6 +55,20 @@ struct rte_eventmode_helper_event_link_info {
 		/**< Lcore to be polling on this port */
 };
 
+/* Workers registered by the application */
+struct rte_eventmode_helper_app_worker_params {
+	union {
+		struct {
+			uint64_t burst : 4;
+			/**< Specify status of rx type burst */
+		};
+		uint64_t u64;
+	} cap;
+			/**< Capabilities of this worker */
+	void (*worker_thread)(void *mode_conf);
+			/**< Worker thread */
+};
+
 /* Common helper functions for command line parsing */
 
 /**
@@ -157,6 +185,27 @@ uint8_t __rte_experimental
 rte_eventmode_helper_get_tx_queue(struct rte_eventmode_helper_conf *mode_conf,
 		uint8_t eventdev_id);
 
+/**
+ * Launch eventmode worker
+ *
+ * The application can request the eventmode helper subsystem to launch the
+ * worker based on the capabilities of event device and the options selected
+ * while initializing the eventmode.
+ *
+ * @param mode_conf
+ *   Configuration of the mode in which app is doing packet handling
+ * @param app_wrkr
+ *   List of all the workers registered by application, along with it's
+ *   capabilities
+ * @param nb_wrkr_param
+ *   Number of workers passed by the application
+ *
+ */
+void __rte_experimental
+rte_eventmode_helper_launch_worker(struct rte_eventmode_helper_conf *mode_conf,
+		struct rte_eventmode_helper_app_worker_params *app_wrkr,
+		uint8_t nb_wrkr_param);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/librte_eventdev/rte_eventmode_helper_internal.h b/lib/librte_eventdev/rte_eventmode_helper_internal.h
index 499cf5d..906766c 100644
--- a/lib/librte_eventdev/rte_eventmode_helper_internal.h
+++ b/lib/librte_eventdev/rte_eventmode_helper_internal.h
@@ -48,6 +48,9 @@
 #define EVENT_MODE_MAX_LCORE_LINKS \
 	(EVENT_MODE_MAX_EVENT_DEVS * EVENT_MODE_MAX_EVENT_QUEUES_PER_DEV)
 
+/* Max adapters that one Rx core can handle */
+#define EVENT_MODE_MAX_ADAPTERS_PER_RX_CORE EVENT_MODE_MAX_RX_ADAPTERS
+
 /* Event dev params */
 struct eventdev_params {
 	uint8_t eventdev_id;
-- 
2.7.4


  parent reply index

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-03 17:32 [dpdk-dev] [PATCH 00/39] adding eventmode helper library Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 01/39] examples/l2fwd-event: create copy of l2fwd Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 02/39] examples/l2fwd-event: move macros to common header Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 03/39] examples/l2fwd-event: move structures " Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 04/39] examples/l2fwd-event: move global vars " Anoob Joseph
2019-06-07 10:02   ` Jerin Jacob Kollanukkaran
2019-06-07 10:45     ` Anoob Joseph
2019-06-07 12:47       ` Jerin Jacob Kollanukkaran
2019-06-03 17:32 ` [dpdk-dev] [PATCH 05/39] examples/l2fwd-event: move dataplane code to new file Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 06/39] examples/l2fwd-event: remove unused header includes Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 07/39] examples/l2fwd-event: move drain buffers to new function Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 08/39] examples/l2fwd-event: optimize check for master core Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 09/39] examples/l2fwd-event: move periodic tasks to new func Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 10/39] examples/l2fwd-event: do timer updates only on master Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 11/39] examples/l2fwd-event: move pkt send code to a new func Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 12/39] examples/l2fwd-event: use fprintf in usage print Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 13/39] examples/l2fwd-event: improvements to the " Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 14/39] eventdev: add files for eventmode helper Anoob Joseph
2019-06-10 10:10   ` Jerin Jacob Kollanukkaran
2019-06-03 17:32 ` [dpdk-dev] [PATCH 15/39] eventdev: add routines for logging " Anoob Joseph
2019-06-10 10:12   ` Jerin Jacob Kollanukkaran
2019-06-17  9:09     ` Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 16/39] eventdev: add eventmode CL options framework Anoob Joseph
2019-06-10 10:19   ` Jerin Jacob Kollanukkaran
2019-06-17 10:14     ` Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 17:32 ` [dpdk-dev] [PATCH 17/39] eventdev: allow application to set ethernet portmask Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 18/39] eventdev: add framework for eventmode conf Anoob Joseph
2019-06-10 10:06   ` Jerin Jacob Kollanukkaran
2019-06-20  7:26     ` Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 19/39] eventdev: add common initialize routine for eventmode devs Anoob Joseph
2019-06-10 10:23   ` Jerin Jacob Kollanukkaran
2019-06-17 10:22     ` Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 17:32 ` [dpdk-dev] [PATCH 20/39] eventdev: add eventdevice init for eventmode Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 21/39] eventdev: add eventdev port-lcore link Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 22/39] eventdev: add option to specify schedule mode for app stage Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 23/39] eventdev: add placeholder for ethdev init Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 24/39] eventdev: add Rx adapter init in eventmode Anoob Joseph
2019-06-10 14:56   ` Carrillo, Erik G
2019-06-11  3:45     ` [dpdk-dev] [EXT] " Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 25/39] eventdev: add routine to validate conf Anoob Joseph
2019-06-10 10:25   ` Jerin Jacob Kollanukkaran
2019-06-17 10:23     ` Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 26/39] eventdev: add default conf for event devs field in conf Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 27/39] eventdev: add default conf for Rx adapter conf Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 28/39] eventdev: add default conf for event port-lcore link Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 29/39] eventdev: add routines to display the eventmode conf Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 30/39] eventdev: add routine to access eventmode link info Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 31/39] eventdev: add routine to access event queue for eth Tx Anoob Joseph
2019-06-03 17:32 ` Anoob Joseph [this message]
2019-06-10 14:31   ` [dpdk-dev] [PATCH 32/39] eventdev: add routine to launch eventmode workers Carrillo, Erik G
2019-06-17 10:34     ` [dpdk-dev] [EXT] " Anoob Joseph
2019-06-10 14:46   ` [dpdk-dev] " Carrillo, Erik G
2019-06-27  5:50     ` Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 17:32 ` [dpdk-dev] [PATCH 33/39] eventdev: add Tx adapter support Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 17:32 ` [dpdk-dev] [PATCH 34/39] eventdev: add support for internal ports Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 35/39] eventdev: display Tx adapter conf Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 36/39] examples/l2fwd-event: add eventmode for l2fwd Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 37/39] examples/l2fwd-event: add eventmode worker Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 38/39] " Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 39/39] " Anoob Joseph
2019-06-07  9:48 ` [dpdk-dev] [PATCH 00/39] adding eventmode helper library Jerin Jacob Kollanukkaran
2019-06-11 10:44   ` Mattias Rönnblom
2019-06-14  9:18     ` [dpdk-dev] [EXT] " Anoob Joseph
2019-06-17 13:23       ` Mattias Rönnblom
2019-06-20  3:44         ` Anoob Joseph
     [not found] <1559580584-5728-1-git-send-email-anoobj@marvell.com>
2019-06-03 16:49 ` [dpdk-dev] [PATCH 32/39] eventdev: add routine to launch eventmode workers Anoob Joseph

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	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dpdk-dev dpdk-dev/ https://lore.kernel.org/dpdk-dev \
		dev@dpdk.org
	public-inbox-index dpdk-dev

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git