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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 31/39] eventdev: add routine to access event queue for eth Tx
Date: Mon, 3 Jun 2019 23:02:31 +0530
Message-ID: <1559583160-13944-32-git-send-email-anoobj@marvell.com> (raw)
In-Reply-To: <1559583160-13944-1-git-send-email-anoobj@marvell.com>

When the application is drafted for single stage eventmode, it will be
efficient to have the loop in the application space, rather than passing
it on to the helper.

When the application's stage is in ORDERED sched mode, the application
will have to change the sched type of the event to ATOMIC before sending
it, to ensure ingress ordering is maintained. Since, it is application
who would do the tx, this info is required in it's space.

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   | 53 ++++++++++++++++++++++++++++
 lib/librte_eventdev/rte_eventmode_helper.h   | 21 +++++++++++
 3 files changed, 75 insertions(+)

diff --git a/lib/librte_eventdev/rte_eventdev_version.map b/lib/librte_eventdev/rte_eventdev_version.map
index 8137cb5..3cf926a 100644
--- a/lib/librte_eventdev/rte_eventdev_version.map
+++ b/lib/librte_eventdev/rte_eventdev_version.map
@@ -134,4 +134,5 @@ EXPERIMENTAL {
 	rte_eventmode_helper_initialize_devs;
 	rte_eventmode_helper_display_conf;
 	rte_eventmode_helper_get_event_lcore_links;
+	rte_eventmode_helper_get_tx_queue;
 };
diff --git a/lib/librte_eventdev/rte_eventmode_helper.c b/lib/librte_eventdev/rte_eventmode_helper.c
index 6c853f6..e7670e0 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.c
+++ b/lib/librte_eventdev/rte_eventmode_helper.c
@@ -93,6 +93,24 @@ internal_get_next_active_core(struct eventmode_conf *em_conf,
 	return next_core;
 }
 
+static struct eventdev_params *
+internal_get_eventdev_params(struct eventmode_conf *em_conf,
+		uint8_t eventdev_id)
+{
+	int i;
+
+	for (i = 0; i < em_conf->nb_eventdev; i++) {
+		if (em_conf->eventdev_config[i].eventdev_id == eventdev_id)
+			break;
+	}
+
+	/* No match */
+	if (i == em_conf->nb_eventdev)
+		return NULL;
+
+	return &(em_conf->eventdev_config[i]);
+}
+
 /* Global functions */
 
 void __rte_experimental
@@ -927,3 +945,38 @@ rte_eventmode_helper_get_event_lcore_links(uint32_t lcore_id,
 	return lcore_nb_link;
 }
 
+uint8_t __rte_experimental
+rte_eventmode_helper_get_tx_queue(struct rte_eventmode_helper_conf *mode_conf,
+		uint8_t eventdev_id)
+{
+	struct eventdev_params *eventdev_config;
+	struct eventmode_conf *em_conf;
+
+	if (mode_conf == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid conf");
+		return (uint8_t)(-1);
+	}
+
+	if (mode_conf->mode_params == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Invalid mode params");
+		return (uint8_t)(-1);
+	}
+
+	/* Get eventmode conf */
+	em_conf = (struct eventmode_conf *)(mode_conf->mode_params);
+
+	/* Get event device conf */
+	eventdev_config = internal_get_eventdev_params(em_conf, eventdev_id);
+
+	if (eventdev_config == NULL) {
+		RTE_EM_HLPR_LOG_ERR("Error reading eventdev conf");
+		return (uint8_t)(-1);
+	}
+
+	/*
+	 * The last queue would be reserved to be used as atomic queue for the
+	 * last stage (eth packet tx stage)
+	 */
+	return eventdev_config->nb_eventqueue - 1;
+}
+
diff --git a/lib/librte_eventdev/rte_eventmode_helper.h b/lib/librte_eventdev/rte_eventmode_helper.h
index 925b660..cd6d708 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.h
+++ b/lib/librte_eventdev/rte_eventmode_helper.h
@@ -136,6 +136,27 @@ rte_eventmode_helper_get_event_lcore_links(uint32_t lcore_id,
 		struct rte_eventmode_helper_conf *mode_conf,
 		struct rte_eventmode_helper_event_link_info **links);
 
+/**
+ * Get eventdev tx queue
+ *
+ * If the application uses event device which does not support internal port
+ * then it needs to submit the events to an atomic Tx queue before final
+ * transmission. The Tx queue will be atomic to make sure that ingress order of
+ * the packets is maintained. This Tx queue will be created internally by the
+ * eventmode helper subsystem, and application will need it's queue ID when it
+ * is running the execution loop.
+ *
+ * @param mode_conf
+ *   Configuration of the mode in which app is doing packet handling
+ * @param eventdev_id
+ *   Event device ID
+ * @return
+ *   Tx queue ID
+ */
+uint8_t __rte_experimental
+rte_eventmode_helper_get_tx_queue(struct rte_eventmode_helper_conf *mode_conf,
+		uint8_t eventdev_id);
+
 #ifdef __cplusplus
 }
 #endif
-- 
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 ` Anoob Joseph [this message]
2019-06-03 17:32 ` [dpdk-dev] [PATCH 32/39] eventdev: add routine to launch eventmode workers Anoob Joseph
2019-06-10 14:31   ` 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 31/39] eventdev: add routine to access event queue for eth Tx Anoob Joseph

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