diff mbox series

[v12,05/16] graph: introduce graph node core affinity API

Message ID 20230609191245.252521-6-zhirun.yan@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series graph enhancement for multi-core dispatch |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Yan, Zhirun June 9, 2023, 7:12 p.m. UTC 
  Add lcore_id for node to hold affinity core id and impl
rte_graph_model_mcore_dispatch_lcore_affinity_set to set node affinity
with specific lcore.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
---
 lib/graph/graph_private.h                  |  2 +
 lib/graph/meson.build                      |  1 +
 lib/graph/node.c                           |  1 +
 lib/graph/rte_graph_model_mcore_dispatch.c | 30 +++++++++++++++
 lib/graph/rte_graph_model_mcore_dispatch.h | 45 ++++++++++++++++++++++
 lib/graph/version.map                      |  1 +
 6 files changed, 80 insertions(+)
 create mode 100644 lib/graph/rte_graph_model_mcore_dispatch.c
 create mode 100644 lib/graph/rte_graph_model_mcore_dispatch.h
diff mbox series

Patch

diff --git a/lib/graph/graph_private.h b/lib/graph/graph_private.h
index eacdef45f0..ea4409448d 100644
--- a/lib/graph/graph_private.h
+++ b/lib/graph/graph_private.h
@@ -51,6 +51,8 @@  struct node {
 	STAILQ_ENTRY(node) next;      /**< Next node in the list. */
 	char name[RTE_NODE_NAMESIZE]; /**< Name of the node. */
 	uint64_t flags;		      /**< Node configuration flag. */
+	unsigned int lcore_id;
+	/**< Node runs on the Lcore ID used for mcore dispatch model. */
 	rte_node_process_t process;   /**< Node process function. */
 	rte_node_init_t init;         /**< Node init function. */
 	rte_node_fini_t fini;	      /**< Node fini function. */
diff --git a/lib/graph/meson.build b/lib/graph/meson.build
index 9fab8243da..0685cf9e72 100644
--- a/lib/graph/meson.build
+++ b/lib/graph/meson.build
@@ -16,6 +16,7 @@  sources = files(
         'graph_populate.c',
         'graph_pcap.c',
         'rte_graph_worker.c',
+        'rte_graph_model_mcore_dispatch.c',
 )
 headers = files('rte_graph.h', 'rte_graph_worker.h')
 
diff --git a/lib/graph/node.c b/lib/graph/node.c
index 149414dcd9..339b4a0da5 100644
--- a/lib/graph/node.c
+++ b/lib/graph/node.c
@@ -100,6 +100,7 @@  __rte_node_register(const struct rte_node_register *reg)
 			goto free;
 	}
 
+	node->lcore_id = RTE_MAX_LCORE;
 	node->id = node_id++;
 
 	/* Add the node at tail */
diff --git a/lib/graph/rte_graph_model_mcore_dispatch.c b/lib/graph/rte_graph_model_mcore_dispatch.c
new file mode 100644
index 0000000000..9df2479a10
--- /dev/null
+++ b/lib/graph/rte_graph_model_mcore_dispatch.c
@@ -0,0 +1,30 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Intel Corporation
+ */
+
+#include "graph_private.h"
+#include "rte_graph_model_mcore_dispatch.h"
+
+int
+rte_graph_model_mcore_dispatch_node_lcore_affinity_set(const char *name, unsigned int lcore_id)
+{
+	struct node *node;
+	int ret = -EINVAL;
+
+	if (lcore_id >= RTE_MAX_LCORE)
+		return ret;
+
+	graph_spinlock_lock();
+
+	STAILQ_FOREACH(node, node_list_head_get(), next) {
+		if (strncmp(node->name, name, RTE_NODE_NAMESIZE) == 0) {
+			node->lcore_id = lcore_id;
+			ret = 0;
+			break;
+		}
+	}
+
+	graph_spinlock_unlock();
+
+	return ret;
+}
diff --git a/lib/graph/rte_graph_model_mcore_dispatch.h b/lib/graph/rte_graph_model_mcore_dispatch.h
new file mode 100644
index 0000000000..7da0483d13
--- /dev/null
+++ b/lib/graph/rte_graph_model_mcore_dispatch.h
@@ -0,0 +1,45 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Intel Corporation
+ */
+
+#ifndef _RTE_GRAPH_MODEL_MCORE_DISPATCH_H_
+#define _RTE_GRAPH_MODEL_MCORE_DISPATCH_H_
+
+/**
+ * @file rte_graph_model_mcore_dispatch.h
+ *
+ * @warning
+ * @b EXPERIMENTAL:
+ * All functions in this file may be changed or removed without prior notice.
+ *
+ * These APIs allow to set core affinity with the node and only used for mcore
+ * dispatch model.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "rte_graph_worker_common.h"
+
+/**
+ * Set lcore affinity with the node used for mcore dispatch model.
+ *
+ * @param name
+ *   Valid node name. In the case of the cloned node, the name will be
+ * "parent node name" + "-" + name.
+ * @param lcore_id
+ *   The lcore ID value.
+ *
+ * @return
+ *   0 on success, error otherwise.
+ */
+__rte_experimental
+int rte_graph_model_mcore_dispatch_node_lcore_affinity_set(const char *name,
+							   unsigned int lcore_id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_GRAPH_MODEL_MCORE_DISPATCH_H_ */
diff --git a/lib/graph/version.map b/lib/graph/version.map
index e9a680a45e..6ae19b0d6e 100644
--- a/lib/graph/version.map
+++ b/lib/graph/version.map
@@ -15,6 +15,7 @@  EXPERIMENTAL {
 	rte_graph_list_dump;
 	rte_graph_max_count;
 	rte_graph_model_is_valid;
+	rte_graph_model_mcore_dispatch_node_lcore_affinity_set;
 	rte_graph_node_get;
 	rte_graph_node_get_by_name;
 	rte_graph_obj_dump;