#include <stdint.h>
#include <rte_mbuf.h>
+#include <rte_sched.h>
#include <rte_ethdev.h>
+#include <rte_tm_driver.h>
#include "rte_eth_softnic.h"
+/**
+ * PMD Parameters
+ */
+
+enum pmd_feature {
+ PMD_FEATURE_TM = 1, /**< Traffic Management (TM) */
+};
+
#ifndef INTRUSIVE
#define INTRUSIVE 0
#endif
* (potentially faster).
*/
int intrusive;
+
+ /** Traffic Management (TM) */
+ struct {
+ uint32_t rate; /**< Rate (bytes/second) */
+ uint32_t nb_queues; /**< Number of queues */
+ uint16_t qsize[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ /**< Queue size per traffic class */
+ uint32_t enq_bsz; /**< Enqueue burst size */
+ uint32_t deq_bsz; /**< Dequeue burst size */
+ } tm;
} soft;
/** Parameters for the hard device (existing) */
uint32_t flush_count;
};
+/**
+ * Traffic Management (TM) Internals
+ */
+
+#ifndef TM_MAX_SUBPORTS
+#define TM_MAX_SUBPORTS 8
+#endif
+
+#ifndef TM_MAX_PIPES_PER_SUBPORT
+#define TM_MAX_PIPES_PER_SUBPORT 4096
+#endif
+
+struct tm_params {
+ struct rte_sched_port_params port_params;
+
+ struct rte_sched_subport_params subport_params[TM_MAX_SUBPORTS];
+
+ struct rte_sched_pipe_params
+ pipe_profiles[RTE_SCHED_PIPE_PROFILES_PER_PORT];
+ uint32_t n_pipe_profiles;
+ uint32_t pipe_to_profile[TM_MAX_SUBPORTS * TM_MAX_PIPES_PER_SUBPORT];
+};
+
+/* TM Levels */
+enum tm_node_level {
+ TM_NODE_LEVEL_PORT = 0,
+ TM_NODE_LEVEL_SUBPORT,
+ TM_NODE_LEVEL_PIPE,
+ TM_NODE_LEVEL_TC,
+ TM_NODE_LEVEL_QUEUE,
+ TM_NODE_LEVEL_MAX,
+};
+
+/* TM Node */
+struct tm_node {
+ TAILQ_ENTRY(tm_node) node;
+ uint32_t node_id;
+ uint32_t parent_node_id;
+ uint32_t priority;
+ uint32_t weight;
+ uint32_t level;
+ struct tm_node *parent_node;
+ struct rte_tm_node_params params;
+ struct rte_tm_node_stats stats;
+ uint32_t n_children;
+};
+
+TAILQ_HEAD(tm_node_list, tm_node);
+
+/* TM Hierarchy Specification */
+struct tm_hierarchy {
+ struct tm_node_list nodes;
+
+ uint32_t n_tm_nodes[TM_NODE_LEVEL_MAX];
+};
+
+struct tm_internals {
+ /** Hierarchy specification
+ *
+ * -Hierarchy is unfrozen at init and when port is stopped.
+ * -Hierarchy is frozen on successful hierarchy commit.
+ * -Run-time hierarchy changes are not allowed, therefore it makes
+ * sense to keep the hierarchy frozen after the port is started.
+ */
+ struct tm_hierarchy h;
+
+ /** Blueprints */
+ struct tm_params params;
+
+ /** Run-time */
+ struct rte_sched_port *sched;
+ struct rte_mbuf **pkts_enq;
+ struct rte_mbuf **pkts_deq;
+ uint32_t pkts_enq_len;
+ uint32_t txq_pos;
+ uint32_t flush_count;
+};
+
/**
* PMD Internals
*/
/** Soft device */
struct {
struct default_internals def; /**< Default */
+ struct tm_internals tm; /**< Traffic Management */
} soft;
/** Hard device */
} hard;
};
+/**
+ * Traffic Management (TM) Operation
+ */
+extern const struct rte_tm_ops pmd_tm_ops;
+
+int
+tm_params_check(struct pmd_params *params, uint32_t hard_rate);
+
+int
+tm_init(struct pmd_internals *p, struct pmd_params *params, int numa_node);
+
+void
+tm_free(struct pmd_internals *p);
+
+int
+tm_start(struct pmd_internals *p);
+
+void
+tm_stop(struct pmd_internals *p);
+
+static inline int
+tm_enabled(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *p = dev->data->dev_private;
+
+ return (p->params.soft.flags & PMD_FEATURE_TM);
+}
+
+static inline int
+tm_used(struct rte_eth_dev *dev)
+{
+ struct pmd_internals *p = dev->data->dev_private;
+
+ return (p->params.soft.flags & PMD_FEATURE_TM) &&
+ p->soft.tm.h.n_tm_nodes[TM_NODE_LEVEL_PORT];
+}
+
#endif /* __INCLUDE_RTE_ETH_SOFTNIC_INTERNALS_H__ */