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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: "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>,
	"Anoob Joseph" <anoobj@marvell.com>
Subject: [dpdk-dev] [PATCH 28/39] eventdev: add default conf for event port-lcore link
Date: Mon, 3 Jun 2019 22:19:33 +0530
Message-ID: <1559580584-5728-29-git-send-email-anoobj@marvell.com> (raw)
In-Reply-To: <1559580584-5728-1-git-send-email-anoobj@marvell.com>

Generate a default conf for event port-lcore link, if not specified in
the conf. This routine will check the number of available ports and then
create links according to the number of cores available.

This patch also adds a new entry in the eventmode conf to denote that
all queues is to be linked with every port. This enables one core to
receive packets from every port.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Lukasz Bartosik <lbartosik@marvell.com>
---
 lib/librte_eventdev/rte_eventmode_helper.c         | 109 ++++++++++++++++++++-
 .../rte_eventmode_helper_internal.h                |   5 +
 2 files changed, 113 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eventdev/rte_eventmode_helper.c b/lib/librte_eventdev/rte_eventmode_helper.c
index a24d654..191eb77 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.c
+++ b/lib/librte_eventdev/rte_eventmode_helper.c
@@ -70,6 +70,28 @@ internal_get_next_rx_core(struct eventmode_conf *em_conf,
 	return next_core;
 }
 
+static inline unsigned int
+internal_get_next_active_core(struct eventmode_conf *em_conf,
+		unsigned int prev_core)
+{
+	unsigned int next_core;
+
+get_next_core:
+	/* Get the next core */
+	next_core = rte_get_next_lcore(prev_core, 0, 0);
+
+	/* Check if we have reached max lcores */
+	if (next_core == RTE_MAX_LCORE)
+		return next_core;
+
+	/* Some cores would be reserved as rx cores. Skip them */
+	if (em_conf->eth_core_mask & (1 << next_core)) {
+		prev_core = next_core;
+		goto get_next_core;
+	}
+
+	return next_core;
+}
 
 /* Global functions */
 
@@ -350,6 +372,74 @@ rte_eventmode_helper_set_default_conf_rx_adapter(struct eventmode_conf *em_conf)
 }
 
 static int
+rte_eventmode_helper_set_default_conf_link(struct eventmode_conf *em_conf)
+{
+	int i, j;
+	struct eventdev_params *eventdev_config;
+	unsigned int lcore_id = -1;
+	int link_index;
+	struct rte_eventmode_helper_event_link_info *link;
+
+	/*
+	 * Create a 1:1 mapping from event ports to cores. If the number
+	 * of event ports is lesser than the cores, some cores won't
+	 * execute worker. If event ports are more, then some ports won't
+	 * be used.
+	 *
+	 */
+
+	/*
+	 * The event queue-port mapping is done according to the link. Since
+	 * we are falling back to the default link conf, enabling
+	 * "all_ev_queue_to_ev_port" mode flag. This will map all queues to the
+	 * port.
+	 */
+	em_conf->ext_params.all_ev_queue_to_ev_port = 1;
+
+	for (i = 0; i < em_conf->nb_eventdev; i++) {
+
+		/* Get event dev conf */
+		eventdev_config = &(em_conf->eventdev_config[i]);
+
+		/* Loop through the ports */
+		for (j = 0; j < eventdev_config->nb_eventport; j++) {
+
+			/* Get next active core id */
+			lcore_id = internal_get_next_active_core(em_conf,
+					lcore_id);
+
+			if (lcore_id == RTE_MAX_LCORE) {
+				/* Reached max cores */
+				return 0;
+			}
+
+			/* Save the current combination as one link */
+
+			/* Get the index */
+			link_index = em_conf->nb_link;
+
+			/* Get the corresponding link */
+			link = &(em_conf->link[link_index]);
+
+			/* Save link */
+			link->eventdev_id = eventdev_config->eventdev_id;
+			link->event_portid = j;
+			link->lcore_id = lcore_id;
+
+			/*
+			 * Not setting eventq_id as by default all queues
+			 * need to be mapped to the port, and is controlled
+			 * by the operating mode.
+			 */
+
+			/* Update number of links */
+			em_conf->nb_link++;
+		}
+	}
+	return 0;
+}
+
+static int
 rte_eventmode_helper_validate_conf(struct eventmode_conf *em_conf)
 {
 	int ret;
@@ -379,6 +469,16 @@ rte_eventmode_helper_validate_conf(struct eventmode_conf *em_conf)
 			return ret;
 	}
 
+	/*
+	 * See if links are specified. Else generate a default conf for
+	 * the event ports used.
+	 */
+	if (em_conf->nb_link == 0) {
+		ret = rte_eventmode_helper_set_default_conf_link(em_conf);
+		if (ret != 0)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -508,7 +608,14 @@ rte_eventmode_helper_initialize_eventdev(struct eventmode_conf *em_conf)
 		/* Get event dev ID */
 		eventdev_id = link->eventdev_id;
 
-		queue = &(link->eventq_id);
+		/*
+		 * If "all_ev_queue_to_ev_port" params flag is selected, all
+		 * queues need to be mapped to the port.
+		 */
+		if (em_conf->ext_params.all_ev_queue_to_ev_port)
+			queue = NULL;
+		else
+			queue = &(link->eventq_id);
 
 		/* Link queue to port */
 		ret = rte_event_port_link(eventdev_id, link->event_portid,
diff --git a/lib/librte_eventdev/rte_eventmode_helper_internal.h b/lib/librte_eventdev/rte_eventmode_helper_internal.h
index 7cc5776..499cf5d 100644
--- a/lib/librte_eventdev/rte_eventmode_helper_internal.h
+++ b/lib/librte_eventdev/rte_eventmode_helper_internal.h
@@ -96,6 +96,11 @@ struct eventmode_conf {
 		struct {
 			uint64_t sched_type			: 2;
 		/**< Schedule type */
+			uint64_t all_ev_queue_to_ev_port	: 1;
+		/**<
+		 * When enabled, all event queues need to be mapped to
+		 * each event port
+		 */
 		};
 		uint64_t u64;
 	} ext_params;
-- 
2.7.4


  parent reply index

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1559580584-5728-1-git-send-email-anoobj@marvell.com>
2019-06-03 16:49 ` [dpdk-dev] [PATCH 03/39] examples/l2fwd-event: move structures to common header Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 04/39] examples/l2fwd-event: move global vars " Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 05/39] examples/l2fwd-event: move dataplane code to new file Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 06/39] examples/l2fwd-event: remove unused header includes Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 07/39] examples/l2fwd-event: move drain buffers to new function Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 08/39] examples/l2fwd-event: optimize check for master core Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 09/39] examples/l2fwd-event: move periodic tasks to new func Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 10/39] examples/l2fwd-event: do timer updates only on master Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 11/39] examples/l2fwd-event: move pkt send code to a new func Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 12/39] examples/l2fwd-event: use fprintf in usage print Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 13/39] examples/l2fwd-event: improvements to the " Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 14/39] eventdev: add files for eventmode helper Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 15/39] eventdev: add routines for logging " Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 16/39] eventdev: add eventmode CL options framework Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 17/39] eventdev: allow application to set ethernet portmask Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 18/39] eventdev: add framework for eventmode conf Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 19/39] eventdev: add common initialize routine for eventmode devs Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 20/39] eventdev: add eventdevice init for eventmode Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 21/39] eventdev: add eventdev port-lcore link Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 22/39] eventdev: add option to specify schedule mode for app stage Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 23/39] eventdev: add placeholder for ethdev init Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 24/39] eventdev: add Rx adapter init in eventmode Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 16:49 ` [dpdk-dev] [PATCH 25/39] eventdev: add routine to validate conf Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 26/39] eventdev: add default conf for event devs field in conf Anoob Joseph
2019-06-11  8:58   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2019-06-03 16:49 ` [dpdk-dev] [PATCH 27/39] eventdev: add default conf for Rx adapter conf Anoob Joseph
2019-06-03 16:49 ` Anoob Joseph [this message]
2019-06-03 16:49 ` [dpdk-dev] [PATCH 29/39] eventdev: add routines to display the eventmode conf Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 30/39] eventdev: add routine to access eventmode link info Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 31/39] eventdev: add routine to access event queue for eth Tx Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 32/39] eventdev: add routine to launch eventmode workers Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 33/39] eventdev: add Tx adapter support Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 34/39] eventdev: add support for internal ports Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 35/39] eventdev: display Tx adapter conf Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 36/39] examples/l2fwd-event: add eventmode for l2fwd Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 37/39] examples/l2fwd-event: add eventmode worker Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 38/39] " Anoob Joseph
2019-06-03 16:49 ` [dpdk-dev] [PATCH 39/39] " Anoob Joseph
2019-06-03 17:32 [dpdk-dev] [PATCH 00/39] adding eventmode helper library Anoob Joseph
2019-06-03 17:32 ` [dpdk-dev] [PATCH 28/39] eventdev: add default conf for event port-lcore link Anoob Joseph

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