[v2,11/22] net/softnic: add softnic run API
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Commit Message
Implements softnic API function to run pipeline objects.
Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
---
drivers/net/softnic/rte_eth_softnic.c | 13 --
drivers/net/softnic/rte_eth_softnic_thread.c | 195 +++++++++++++++++++++++++++
2 files changed, 195 insertions(+), 13 deletions(-)
@@ -193,19 +193,6 @@ pmd_tx_pkt_burst(void *txq,
NULL);
}
-int
-rte_pmd_softnic_run(uint16_t port_id)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
-
-#ifdef RTE_LIBRTE_ETHDEV_DEBUG
- RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
-#endif
-
- dev = dev;
- return 0;
-}
-
static void *
pmd_init(struct pmd_params *params)
{
@@ -88,3 +88,198 @@ thread_init(struct pmd_internals *softnic)
return 0;
}
+
+/**
+ * Master thread & data plane threads: message passing
+ */
+enum thread_req_type {
+ THREAD_REQ_MAX
+};
+
+struct thread_msg_req {
+ enum thread_req_type type;
+};
+
+struct thread_msg_rsp {
+ int status;
+};
+
+/**
+ * Data plane threads: message handling
+ */
+static inline struct thread_msg_req *
+thread_msg_recv(struct rte_ring *msgq_req)
+{
+ struct thread_msg_req *req;
+
+ int status = rte_ring_sc_dequeue(msgq_req, (void **)&req);
+
+ if (status != 0)
+ return NULL;
+
+ return req;
+}
+
+static inline void
+thread_msg_send(struct rte_ring *msgq_rsp,
+ struct thread_msg_rsp *rsp)
+{
+ int status;
+
+ do {
+ status = rte_ring_sp_enqueue(msgq_rsp, rsp);
+ } while (status == -ENOBUFS);
+}
+
+static void
+thread_msg_handle(struct thread_data *t)
+{
+ for ( ; ; ) {
+ struct thread_msg_req *req;
+ struct thread_msg_rsp *rsp;
+
+ req = thread_msg_recv(t->msgq_req);
+ if (req == NULL)
+ break;
+
+ switch (req->type) {
+ default:
+ rsp = (struct thread_msg_rsp *)req;
+ rsp->status = -1;
+ }
+
+ thread_msg_send(t->msgq_rsp, rsp);
+ }
+}
+
+/**
+ * Master thread & data plane threads: message passing
+ */
+enum pipeline_req_type {
+ PIPELINE_REQ_MAX
+};
+
+struct pipeline_msg_req {
+ enum pipeline_req_type type;
+};
+
+struct pipeline_msg_rsp {
+ int status;
+};
+
+/**
+ * Data plane threads: message handling
+ */
+static inline struct pipeline_msg_req *
+pipeline_msg_recv(struct rte_ring *msgq_req)
+{
+ struct pipeline_msg_req *req;
+
+ int status = rte_ring_sc_dequeue(msgq_req, (void **)&req);
+
+ if (status != 0)
+ return NULL;
+
+ return req;
+}
+
+static inline void
+pipeline_msg_send(struct rte_ring *msgq_rsp,
+ struct pipeline_msg_rsp *rsp)
+{
+ int status;
+
+ do {
+ status = rte_ring_sp_enqueue(msgq_rsp, rsp);
+ } while (status == -ENOBUFS);
+}
+
+static void
+pipeline_msg_handle(struct pipeline_data *p)
+{
+ for ( ; ; ) {
+ struct pipeline_msg_req *req;
+ struct pipeline_msg_rsp *rsp;
+
+ req = pipeline_msg_recv(p->msgq_req);
+ if (req == NULL)
+ break;
+
+ switch (req->type) {
+ default:
+ rsp = (struct pipeline_msg_rsp *)req;
+ rsp->status = -1;
+ }
+
+ pipeline_msg_send(p->msgq_rsp, rsp);
+ }
+}
+
+/**
+ * Data plane threads: main
+ */
+int
+rte_pmd_softnic_run(uint16_t port_id)
+{
+ struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+ struct pmd_internals *softnic;
+ struct thread_data *t;
+ uint32_t thread_id, j;
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
+#endif
+
+ softnic = dev->data->dev_private;
+ thread_id = rte_lcore_id();
+ t = &softnic->thread_data[thread_id];
+ t->iter++;
+
+ /* Data Plane */
+ for (j = 0; j < t->n_pipelines; j++)
+ rte_pipeline_run(t->p[j]);
+
+ /* Control Plane */
+ if ((t->iter & 0xFLLU) == 0) {
+ uint64_t time = rte_get_tsc_cycles();
+ uint64_t time_next_min = UINT64_MAX;
+
+ if (time < t->time_next_min)
+ return 0;
+
+ /* Pipeline message queues */
+ for (j = 0; j < t->n_pipelines; j++) {
+ struct pipeline_data *p =
+ &t->pipeline_data[j];
+ uint64_t time_next = p->time_next;
+
+ if (time_next <= time) {
+ pipeline_msg_handle(p);
+ rte_pipeline_flush(p->p);
+ time_next = time + p->timer_period;
+ p->time_next = time_next;
+ }
+
+ if (time_next < time_next_min)
+ time_next_min = time_next;
+ }
+
+ /* Thread message queues */
+ {
+ uint64_t time_next = t->time_next;
+
+ if (time_next <= time) {
+ thread_msg_handle(t);
+ time_next = time + t->timer_period;
+ t->time_next = time_next;
+ }
+
+ if (time_next < time_next_min)
+ time_next_min = time_next;
+ }
+
+ t->time_next_min = time_next_min;
+ }
+
+ return 0;
+}