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From: Timothy McDaniel <timothy.mcdaniel@intel.com>
To: Ray Kinsella <mdr@ashroe.eu>, Neil Horman <nhorman@tuxdriver.com>
Cc: dev@dpdk.org, erik.g.carrillo@intel.com, gage.eads@intel.com,
	harry.van.haaren@intel.com, jerinj@marvell.com
Subject: [dpdk-dev] [PATCH v4 18/22] event/dlb: add PMD's token pop public interface
Date: Fri, 11 Sep 2020 14:18:36 -0500
Message-ID: <1599851920-16802-19-git-send-email-timothy.mcdaniel@intel.com> (raw)
In-Reply-To: <1599851920-16802-1-git-send-email-timothy.mcdaniel@intel.com>

The PMD uses a public interface to allow applications to
control the token pop mode. Supported token pop modes are
as follows, and they impact core scheduling affinity for
ldb ports.

AUTO_POP: Pop the CQ tokens immediately after dequeueing.
DELAYED_POP: Pop CQ tokens after (dequeue_depth - 1) events
	     are released. Supported on load-balanced ports
	     only.
DEFERRED_POP: Pop the CQ tokens during next dequeue operation.

Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
---
 drivers/event/dlb/meson.build                   |  4 ++-
 drivers/event/dlb/rte_pmd_dlb.c                 | 38 +++++++++++++++++++++++++
 drivers/event/dlb/rte_pmd_dlb_event_version.map |  6 ++++
 3 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 drivers/event/dlb/rte_pmd_dlb.c

diff --git a/drivers/event/dlb/meson.build b/drivers/event/dlb/meson.build
index 6f87274..d7aeb3b 100644
--- a/drivers/event/dlb/meson.build
+++ b/drivers/event/dlb/meson.build
@@ -6,7 +6,9 @@ sources = files('dlb.c',
 		'dlb_xstats.c',
 		'pf/dlb_main.c',
 		'pf/dlb_pf.c',
-		'pf/base/dlb_resource.c'
+		'pf/base/dlb_resource.c',
+		'rte_pmd_dlb.c',
 )
 
 deps += ['mbuf', 'mempool', 'ring', 'pci', 'bus_pci']
+install_headers('rte_pmd_dlb.h')
diff --git a/drivers/event/dlb/rte_pmd_dlb.c b/drivers/event/dlb/rte_pmd_dlb.c
new file mode 100644
index 0000000..bc802d3
--- /dev/null
+++ b/drivers/event/dlb/rte_pmd_dlb.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+#include "rte_eventdev.h"
+#include "rte_eventdev_pmd.h"
+#include "rte_pmd_dlb.h"
+#include "dlb_priv.h"
+#include "dlb_inline_fns.h"
+
+int
+rte_pmd_dlb_set_token_pop_mode(uint8_t dev_id,
+			       uint8_t port_id,
+			       enum dlb_token_pop_mode mode)
+{
+	struct dlb_eventdev *dlb;
+	struct rte_eventdev *dev;
+
+	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+	dev = &rte_eventdevs[dev_id];
+
+	dlb = dlb_pmd_priv(dev);
+
+	if (mode >= NUM_TOKEN_POP_MODES)
+		return -EINVAL;
+
+	/* The event device must be configured, but not yet started */
+	if (!dlb->configured || dlb->run_state != DLB_RUN_STATE_STOPPED)
+		return -EINVAL;
+
+	/* The token pop mode must be set before configuring the port */
+	if (port_id >= dlb->num_ports || dlb->ev_ports[port_id].setup_done)
+		return -EINVAL;
+
+	dlb->ev_ports[port_id].qm_port.token_pop_mode = mode;
+
+	return 0;
+}
diff --git a/drivers/event/dlb/rte_pmd_dlb_event_version.map b/drivers/event/dlb/rte_pmd_dlb_event_version.map
index 299ae63..b7b65d3 100644
--- a/drivers/event/dlb/rte_pmd_dlb_event_version.map
+++ b/drivers/event/dlb/rte_pmd_dlb_event_version.map
@@ -1,3 +1,9 @@
 DPDK_21.0 {
 	local: *;
 };
+
+EXPERIMENTAL {
+	global:
+
+	rte_pmd_dlb_set_token_pop_mode;
+};
-- 
2.6.4


  parent reply	other threads:[~2020-09-11 19:25 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-11 19:18 [dpdk-dev] [PATCH v4 00/22] Add DLB PMD Timothy McDaniel
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 01/22] event/dlb: add documentation and meson infrastructure Timothy McDaniel
2020-09-14 20:56   ` Eads, Gage
2020-09-16 21:05     ` McDaniel, Timothy
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 02/22] event/dlb: add dynamic logging Timothy McDaniel
2020-09-14 21:00   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 03/22] event/dlb: add private data structures and constants Timothy McDaniel
2020-09-14 22:08   ` Eads, Gage
2020-10-08 18:14   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 04/22] event/dlb: add definitions shared with LKM or shared code Timothy McDaniel
2020-09-15 18:20   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 05/22] event/dlb: add inline functions Timothy McDaniel
2020-10-08 18:22   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 06/22] event/dlb: add probe Timothy McDaniel
2020-10-08 18:51   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 07/22] event/dlb: add xstats Timothy McDaniel
2020-10-08 20:53   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 08/22] event/dlb: add infos get and configure Timothy McDaniel
2020-10-08 21:01   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 09/22] event/dlb: add queue and port default conf Timothy McDaniel
2020-10-08 21:02   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 10/22] event/dlb: add queue setup Timothy McDaniel
2020-10-08 21:15   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 11/22] event/dlb: add port setup Timothy McDaniel
2020-10-08 21:28   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 12/22] event/dlb: add port link Timothy McDaniel
2020-10-08 21:31   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 13/22] event/dlb: add port unlink and port unlinks in progress Timothy McDaniel
2020-10-08 21:38   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 14/22] event/dlb: add eventdev start Timothy McDaniel
2020-10-08 21:41   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 15/22] event/dlb: add enqueue and its burst variants Timothy McDaniel
2020-10-08 21:43   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 16/22] event/dlb: add dequeue " Timothy McDaniel
2020-10-08 21:48   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 17/22] event/dlb: add eventdev stop and close Timothy McDaniel
2020-10-08 21:49   ` Eads, Gage
2020-09-11 19:18 ` Timothy McDaniel [this message]
2020-10-08 21:50   ` [dpdk-dev] [PATCH v4 18/22] event/dlb: add PMD's token pop public interface Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 19/22] event/dlb: add PMD self-tests Timothy McDaniel
2020-10-08 21:56   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 20/22] event/dlb: add queue and port release Timothy McDaniel
2020-10-08 21:57   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 21/22] event/dlb: add timeout ticks entry point Timothy McDaniel
2020-10-08 22:01   ` Eads, Gage
2020-09-11 19:18 ` [dpdk-dev] [PATCH v4 22/22] doc: Add new DLB eventdev driver to relnotes Timothy McDaniel
2020-10-08 22:03   ` Eads, Gage

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