Add new get/set APIs to configure graph worker model which is used to
determine which model will be chosen.
Signed-off-by: Haiyue Wang <haiyue.w...@intel.com>
Signed-off-by: Cunming Liang <cunming.li...@intel.com>
Signed-off-by: Zhirun Yan <zhirun....@intel.com>
Acked-by: Jerin Jacob <jer...@marvell.com>
---
lib/graph/meson.build | 1 +
lib/graph/rte_graph_worker.c | 39 ++++++++++++++++
lib/graph/rte_graph_worker_common.h | 70 +++++++++++++++++++++++++++++
lib/graph/version.map | 5 +++
4 files changed, 115 insertions(+)
create mode 100644 lib/graph/rte_graph_worker.c
diff --git a/lib/graph/meson.build b/lib/graph/meson.build
index 3526d1b5d4..9fab8243da 100644
--- a/lib/graph/meson.build
+++ b/lib/graph/meson.build
@@ -15,6 +15,7 @@ sources = files(
'graph_stats.c',
'graph_populate.c',
'graph_pcap.c',
+ 'rte_graph_worker.c',
)
headers = files('rte_graph.h', 'rte_graph_worker.h')
diff --git a/lib/graph/rte_graph_worker.c b/lib/graph/rte_graph_worker.c
new file mode 100644
index 0000000000..7e2a918fae
--- /dev/null
+++ b/lib/graph/rte_graph_worker.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Intel Corporation
+ */
+
+#include "rte_graph_worker_common.h"
+#include "graph_private.h"
+
+bool
+rte_graph_model_is_valid(uint8_t model)
+{
+ if (model > RTE_GRAPH_MODEL_MCORE_DISPATCH)
+ return false;
+
+ return true;
+}
+
+int
+rte_graph_worker_model_set(uint8_t model)
+{
+ struct graph_head *graph_head = graph_list_head_get();
+ struct graph *graph;
+
+ if (!rte_graph_model_is_valid(model))
+ return -EINVAL;
+
+ STAILQ_FOREACH(graph, graph_head, next)
+ graph->graph->model = model;
+
+ return 0;
+}
+
+uint8_t
+rte_graph_worker_model_get(struct rte_graph *graph)
+{
+ if (!rte_graph_model_is_valid(graph->model))
+ return -EINVAL;
+
+ return graph->model;
+}
diff --git a/lib/graph/rte_graph_worker_common.h
b/lib/graph/rte_graph_worker_common.h
index a90addb172..123600f939 100644
--- a/lib/graph/rte_graph_worker_common.h
+++ b/lib/graph/rte_graph_worker_common.h
@@ -29,6 +29,13 @@
extern "C" {
#endif
+/** Graph worker models */
+/* When adding a new graph model entry, update rte_graph_model_is_valid()
implementation. */
+#define RTE_GRAPH_MODEL_RTC 0 /**< Run-To-Completion model. It is the default
model. */
+#define RTE_GRAPH_MODEL_MCORE_DISPATCH 1
+/**< Dispatch model to support cross-core dispatching within core affinity. */
+#define RTE_GRAPH_MODEL_DEFAULT RTE_GRAPH_MODEL_RTC /**< Default graph model.
*/
+
/**
* @internal
*
@@ -41,6 +48,9 @@ struct rte_graph {
rte_node_t nb_nodes; /**< Number of nodes in the graph. */
rte_graph_off_t *cir_start; /**< Pointer to circular buffer. */
rte_graph_off_t nodes_start; /**< Offset at which node memory starts. */
+ uint8_t model; /**< graph model */
+ uint8_t reserved1; /**< Reserved for future use. */
+ uint16_t reserved2; /**< Reserved for future use. */
rte_graph_t id; /**< Graph identifier. */
int socket; /**< Socket ID where memory is allocated. */
char name[RTE_GRAPH_NAMESIZE]; /**< Name of the graph. */
@@ -490,6 +500,66 @@ rte_node_next_stream_move(struct rte_graph *graph, struct
rte_node *src,
}
}
+/**
+ * Test the validity of model.
+ *
+ * @param model
+ * Model to check.
+ *
+ * @return
+ * True if graph model is valid, false otherwise.
+ */
+__rte_experimental
+bool
+rte_graph_model_is_valid(uint8_t model);
+
+/**
+ * @note This function does not perform any locking, and is only safe to call
+ * before graph running. It will set all graphs the same model.
+ *
+ * @param model
+ * Name of the graph worker model.
+ *
+ * @return
+ * 0 on success, -1 otherwise.
+ */
+__rte_experimental
+int rte_graph_worker_model_set(uint8_t model);
+
+/**
+ * Get the graph worker model
+ *
+ * @note All graph will use the same model and this function will get model
from the first one.
+ * Used for slow path.
+ *
+ * @param graph
+ * Graph pointer.
+ *
+ * @return
+ * Graph worker model on success.
+ */
+__rte_experimental
+uint8_t rte_graph_worker_model_get(struct rte_graph *graph);
+
+/**
+ * Get the graph worker model without check
+ *
+ * @note All graph will use the same model and this function will get model
from the first one.
+ * Used for fast path.
+ *
+ * @param graph
+ * Graph pointer.
+ *
+ * @return
+ * Graph worker model on success.
+ */
+__rte_experimental
+static __rte_always_inline
+uint8_t rte_graph_worker_model_no_check_get(struct rte_graph *graph)
+{
+ return graph->model;
+}
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/graph/version.map b/lib/graph/version.map
index 13b838752d..e9a680a45e 100644
--- a/lib/graph/version.map
+++ b/lib/graph/version.map
@@ -14,10 +14,15 @@ EXPERIMENTAL {
rte_graph_lookup;
rte_graph_list_dump;
rte_graph_max_count;
+ rte_graph_model_is_valid;
rte_graph_node_get;
rte_graph_node_get_by_name;
rte_graph_obj_dump;
rte_graph_walk;
+ rte_graph_worker_model_get;
+ rte_graph_worker_model_no_check_get;
+ rte_graph_worker_model_set;
+
rte_graph_cluster_stats_create;
rte_graph_cluster_stats_destroy;
--
2.37.2
