/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
+ * Copyright(c) 2010-2018 Intel Corporation
*/
+#include <stdlib.h>
+
#include <rte_common.h>
#include <rte_cycles.h>
-#include <rte_pipeline.h>
+#include <rte_lcore.h>
+#include <rte_ring.h>
+
+#include <rte_table_acl.h>
+#include <rte_table_array.h>
+#include <rte_table_hash.h>
+#include <rte_table_lpm.h>
+#include <rte_table_lpm_ipv6.h>
-#include "pipeline_common_be.h"
-#include "app.h"
+#include "common.h"
#include "thread.h"
+#include "pipeline.h"
+
+#ifndef THREAD_PIPELINES_MAX
+#define THREAD_PIPELINES_MAX 256
+#endif
-#if APP_THREAD_HEADROOM_STATS_COLLECT
-
-#define PIPELINE_RUN_REGULAR(thread, pipeline) \
-do { \
- uint64_t t0 = rte_rdtsc_precise(); \
- int n_pkts = rte_pipeline_run(pipeline->p); \
- \
- if (n_pkts == 0) { \
- uint64_t t1 = rte_rdtsc_precise(); \
- \
- thread->headroom_cycles += t1 - t0; \
- } \
-} while (0)
-
-
-#define PIPELINE_RUN_CUSTOM(thread, data) \
-do { \
- uint64_t t0 = rte_rdtsc_precise(); \
- int n_pkts = data->f_run(data->be); \
- \
- if (n_pkts == 0) { \
- uint64_t t1 = rte_rdtsc_precise(); \
- \
- thread->headroom_cycles += t1 - t0; \
- } \
-} while (0)
-
-#else
-
-#define PIPELINE_RUN_REGULAR(thread, pipeline) \
- rte_pipeline_run(pipeline->p)
-
-#define PIPELINE_RUN_CUSTOM(thread, data) \
- data->f_run(data->be)
+#ifndef THREAD_MSGQ_SIZE
+#define THREAD_MSGQ_SIZE 64
+#endif
+#ifndef THREAD_TIMER_PERIOD_MS
+#define THREAD_TIMER_PERIOD_MS 100
#endif
-static inline void *
-thread_msg_recv(struct rte_ring *r)
+/**
+ * Master thead: data plane thread context
+ */
+struct thread {
+ struct rte_ring *msgq_req;
+ struct rte_ring *msgq_rsp;
+
+ uint32_t enabled;
+};
+
+static struct thread thread[RTE_MAX_LCORE];
+
+/**
+ * Data plane threads: context
+ */
+struct table_data {
+ struct rte_table_action *a;
+};
+
+struct pipeline_data {
+ struct rte_pipeline *p;
+ struct table_data table_data[RTE_PIPELINE_TABLE_MAX];
+ uint32_t n_tables;
+
+ struct rte_ring *msgq_req;
+ struct rte_ring *msgq_rsp;
+ uint64_t timer_period; /* Measured in CPU cycles. */
+ uint64_t time_next;
+
+ uint8_t buffer[TABLE_RULE_ACTION_SIZE_MAX];
+};
+
+struct thread_data {
+ struct rte_pipeline *p[THREAD_PIPELINES_MAX];
+ uint32_t n_pipelines;
+
+ struct pipeline_data pipeline_data[THREAD_PIPELINES_MAX];
+ struct rte_ring *msgq_req;
+ struct rte_ring *msgq_rsp;
+ uint64_t timer_period; /* Measured in CPU cycles. */
+ uint64_t time_next;
+ uint64_t time_next_min;
+} __rte_cache_aligned;
+
+static struct thread_data thread_data[RTE_MAX_LCORE];
+
+/**
+ * Master thread: data plane thread init
+ */
+static void
+thread_free(void)
{
- void *msg;
- int status = rte_ring_sc_dequeue(r, &msg);
+ uint32_t i;
- if (status != 0)
- return NULL;
+ for (i = 0; i < RTE_MAX_LCORE; i++) {
+ struct thread *t = &thread[i];
+
+ if (!rte_lcore_is_enabled(i))
+ continue;
+
+ /* MSGQs */
+ if (t->msgq_req)
+ rte_ring_free(t->msgq_req);
- return msg;
+ if (t->msgq_rsp)
+ rte_ring_free(t->msgq_rsp);
+ }
}
-static inline void
-thread_msg_send(struct rte_ring *r,
- void *msg)
+int
+thread_init(void)
+{
+ uint32_t i;
+
+ RTE_LCORE_FOREACH_SLAVE(i) {
+ char name[NAME_MAX];
+ struct rte_ring *msgq_req, *msgq_rsp;
+ struct thread *t = &thread[i];
+ struct thread_data *t_data = &thread_data[i];
+ uint32_t cpu_id = rte_lcore_to_socket_id(i);
+
+ /* MSGQs */
+ snprintf(name, sizeof(name), "THREAD-%04x-MSGQ-REQ", i);
+
+ msgq_req = rte_ring_create(name,
+ THREAD_MSGQ_SIZE,
+ cpu_id,
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+
+ if (msgq_req == NULL) {
+ thread_free();
+ return -1;
+ }
+
+ snprintf(name, sizeof(name), "THREAD-%04x-MSGQ-RSP", i);
+
+ msgq_rsp = rte_ring_create(name,
+ THREAD_MSGQ_SIZE,
+ cpu_id,
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+
+ if (msgq_rsp == NULL) {
+ thread_free();
+ return -1;
+ }
+
+ /* Master thread records */
+ t->msgq_req = msgq_req;
+ t->msgq_rsp = msgq_rsp;
+ t->enabled = 1;
+
+ /* Data plane thread records */
+ t_data->n_pipelines = 0;
+ t_data->msgq_req = msgq_req;
+ t_data->msgq_rsp = msgq_rsp;
+ t_data->timer_period =
+ (rte_get_tsc_hz() * THREAD_TIMER_PERIOD_MS) / 1000;
+ t_data->time_next = rte_get_tsc_cycles() + t_data->timer_period;
+ t_data->time_next_min = t_data->time_next;
+ }
+
+ return 0;
+}
+
+/**
+ * Master thread & data plane threads: message passing
+ */
+enum thread_req_type {
+ THREAD_REQ_PIPELINE_ENABLE = 0,
+ THREAD_REQ_PIPELINE_DISABLE,
+ THREAD_REQ_MAX
+};
+
+struct thread_msg_req {
+ enum thread_req_type type;
+
+ union {
+ struct {
+ struct rte_pipeline *p;
+ struct {
+ struct rte_table_action *a;
+ } table[RTE_PIPELINE_TABLE_MAX];
+ struct rte_ring *msgq_req;
+ struct rte_ring *msgq_rsp;
+ uint32_t timer_period_ms;
+ uint32_t n_tables;
+ } pipeline_enable;
+
+ struct {
+ struct rte_pipeline *p;
+ } pipeline_disable;
+ };
+};
+
+struct thread_msg_rsp {
+ int status;
+};
+
+/**
+ * Master thread
+ */
+static struct thread_msg_req *
+thread_msg_alloc(void)
{
+ size_t size = RTE_MAX(sizeof(struct thread_msg_req),
+ sizeof(struct thread_msg_rsp));
+
+ return calloc(1, size);
+}
+
+static void
+thread_msg_free(struct thread_msg_rsp *rsp)
+{
+ free(rsp);
+}
+
+static struct thread_msg_rsp *
+thread_msg_send_recv(uint32_t thread_id,
+ struct thread_msg_req *req)
+{
+ struct thread *t = &thread[thread_id];
+ struct rte_ring *msgq_req = t->msgq_req;
+ struct rte_ring *msgq_rsp = t->msgq_rsp;
+ struct thread_msg_rsp *rsp;
int status;
+ /* send */
do {
- status = rte_ring_sp_enqueue(r, msg);
+ status = rte_ring_sp_enqueue(msgq_req, req);
} while (status == -ENOBUFS);
+
+ /* recv */
+ do {
+ status = rte_ring_sc_dequeue(msgq_rsp, (void **) &rsp);
+ } while (status != 0);
+
+ return rsp;
}
-static int
-thread_pipeline_enable(struct app_thread_data *t,
- struct thread_pipeline_enable_msg_req *req)
+int
+thread_pipeline_enable(uint32_t thread_id,
+ const char *pipeline_name)
{
- struct app_thread_pipeline_data *p;
+ struct pipeline *p = pipeline_find(pipeline_name);
+ struct thread *t;
+ struct thread_msg_req *req;
+ struct thread_msg_rsp *rsp;
+ uint32_t i;
+ int status;
- if (req->f_run == NULL) {
- if (t->n_regular >= APP_MAX_THREAD_PIPELINES)
- return -1;
- } else {
- if (t->n_custom >= APP_MAX_THREAD_PIPELINES)
- return -1;
- }
+ /* Check input params */
+ if ((thread_id >= RTE_MAX_LCORE) ||
+ (p == NULL) ||
+ (p->n_ports_in == 0) ||
+ (p->n_ports_out == 0) ||
+ (p->n_tables == 0))
+ return -1;
+
+ t = &thread[thread_id];
+ if ((t->enabled == 0) ||
+ p->enabled)
+ return -1;
+
+ /* Allocate request */
+ req = thread_msg_alloc();
+ if (req == NULL)
+ return -1;
+
+ /* Write request */
+ req->type = THREAD_REQ_PIPELINE_ENABLE;
+ req->pipeline_enable.p = p->p;
+ for (i = 0; i < p->n_tables; i++)
+ req->pipeline_enable.table[i].a =
+ p->table[i].a;
+ req->pipeline_enable.msgq_req = p->msgq_req;
+ req->pipeline_enable.msgq_rsp = p->msgq_rsp;
+ req->pipeline_enable.timer_period_ms = p->timer_period_ms;
+ req->pipeline_enable.n_tables = p->n_tables;
+
+ /* Send request and wait for response */
+ rsp = thread_msg_send_recv(thread_id, req);
+ if (rsp == NULL)
+ return -1;
+
+ /* Read response */
+ status = rsp->status;
+
+ /* Free response */
+ thread_msg_free(rsp);
+
+ /* Request completion */
+ if (status)
+ return status;
+
+ p->thread_id = thread_id;
+ p->enabled = 1;
- p = (req->f_run == NULL) ?
- &t->regular[t->n_regular] :
- &t->custom[t->n_custom];
+ return 0;
+}
- p->pipeline_id = req->pipeline_id;
- p->be = req->be;
- p->f_run = req->f_run;
- p->f_timer = req->f_timer;
- p->timer_period = req->timer_period;
- p->deadline = 0;
+int
+thread_pipeline_disable(uint32_t thread_id,
+ const char *pipeline_name)
+{
+ struct pipeline *p = pipeline_find(pipeline_name);
+ struct thread *t;
+ struct thread_msg_req *req;
+ struct thread_msg_rsp *rsp;
+ int status;
+
+ /* Check input params */
+ if ((thread_id >= RTE_MAX_LCORE) ||
+ (p == NULL))
+ return -1;
- if (req->f_run == NULL)
- t->n_regular++;
- else
- t->n_custom++;
+ t = &thread[thread_id];
+ if (t->enabled == 0)
+ return -1;
+
+ if (p->enabled == 0)
+ return 0;
+
+ if (p->thread_id != thread_id)
+ return -1;
+
+ /* Allocate request */
+ req = thread_msg_alloc();
+ if (req == NULL)
+ return -1;
+
+ /* Write request */
+ req->type = THREAD_REQ_PIPELINE_DISABLE;
+ req->pipeline_disable.p = p->p;
+
+ /* Send request and wait for response */
+ rsp = thread_msg_send_recv(thread_id, req);
+ if (rsp == NULL)
+ return -1;
+
+ /* Read response */
+ status = rsp->status;
+
+ /* Free response */
+ thread_msg_free(rsp);
+
+ /* Request completion */
+ if (status)
+ return status;
+
+ p->enabled = 0;
return 0;
}
-static int
-thread_pipeline_disable(struct app_thread_data *t,
- struct thread_pipeline_disable_msg_req *req)
+/**
+ * Data plane threads: message handling
+ */
+static inline struct thread_msg_req *
+thread_msg_recv(struct rte_ring *msgq_req)
{
- uint32_t n_regular = RTE_MIN(t->n_regular, RTE_DIM(t->regular));
- uint32_t n_custom = RTE_MIN(t->n_custom, RTE_DIM(t->custom));
- uint32_t i;
+ struct thread_msg_req *req;
- /* search regular pipelines of current thread */
- for (i = 0; i < n_regular; i++) {
- if (t->regular[i].pipeline_id != req->pipeline_id)
- continue;
+ int status = rte_ring_sc_dequeue(msgq_req, (void **) &req);
- if (i < n_regular - 1)
- memcpy(&t->regular[i],
- &t->regular[i+1],
- (n_regular - 1 - i) * sizeof(struct app_thread_pipeline_data));
+ if (status != 0)
+ return NULL;
- n_regular--;
- t->n_regular = n_regular;
+ return req;
+}
- return 0;
+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 struct thread_msg_rsp *
+thread_msg_handle_pipeline_enable(struct thread_data *t,
+ struct thread_msg_req *req)
+{
+ struct thread_msg_rsp *rsp = (struct thread_msg_rsp *) req;
+ struct pipeline_data *p = &t->pipeline_data[t->n_pipelines];
+ uint32_t i;
+
+ /* Request */
+ if (t->n_pipelines >= THREAD_PIPELINES_MAX) {
+ rsp->status = -1;
+ return rsp;
}
- /* search custom pipelines of current thread */
- for (i = 0; i < n_custom; i++) {
- if (t->custom[i].pipeline_id != req->pipeline_id)
+ t->p[t->n_pipelines] = req->pipeline_enable.p;
+
+ p->p = req->pipeline_enable.p;
+ for (i = 0; i < req->pipeline_enable.n_tables; i++)
+ p->table_data[i].a =
+ req->pipeline_enable.table[i].a;
+
+ p->n_tables = req->pipeline_enable.n_tables;
+
+ p->msgq_req = req->pipeline_enable.msgq_req;
+ p->msgq_rsp = req->pipeline_enable.msgq_rsp;
+ p->timer_period =
+ (rte_get_tsc_hz() * req->pipeline_enable.timer_period_ms) / 1000;
+ p->time_next = rte_get_tsc_cycles() + p->timer_period;
+
+ t->n_pipelines++;
+
+ /* Response */
+ rsp->status = 0;
+ return rsp;
+}
+
+static struct thread_msg_rsp *
+thread_msg_handle_pipeline_disable(struct thread_data *t,
+ struct thread_msg_req *req)
+{
+ struct thread_msg_rsp *rsp = (struct thread_msg_rsp *) req;
+ uint32_t n_pipelines = t->n_pipelines;
+ struct rte_pipeline *pipeline = req->pipeline_disable.p;
+ uint32_t i;
+
+ /* find pipeline */
+ for (i = 0; i < n_pipelines; i++) {
+ struct pipeline_data *p = &t->pipeline_data[i];
+
+ if (p->p != pipeline)
continue;
- if (i < n_custom - 1)
- memcpy(&t->custom[i],
- &t->custom[i+1],
- (n_custom - 1 - i) * sizeof(struct app_thread_pipeline_data));
+ if (i < n_pipelines - 1) {
+ struct rte_pipeline *pipeline_last =
+ t->p[n_pipelines - 1];
+ struct pipeline_data *p_last =
+ &t->pipeline_data[n_pipelines - 1];
- n_custom--;
- t->n_custom = n_custom;
+ t->p[i] = pipeline_last;
+ memcpy(p, p_last, sizeof(*p));
+ }
- return 0;
+ t->n_pipelines--;
+
+ rsp->status = 0;
+ return rsp;
}
- /* return if pipeline not found */
- return -1;
+ /* should not get here */
+ rsp->status = 0;
+ return rsp;
}
-static int
-thread_msg_req_handle(struct app_thread_data *t)
+static void
+thread_msg_handle(struct thread_data *t)
{
- void *msg_ptr;
- struct thread_msg_req *req;
- struct thread_msg_rsp *rsp;
+ for ( ; ; ) {
+ struct thread_msg_req *req;
+ struct thread_msg_rsp *rsp;
- msg_ptr = thread_msg_recv(t->msgq_in);
- req = msg_ptr;
- rsp = msg_ptr;
+ req = thread_msg_recv(t->msgq_req);
+ if (req == NULL)
+ break;
- if (req != NULL)
switch (req->type) {
- case THREAD_MSG_REQ_PIPELINE_ENABLE: {
- rsp->status = thread_pipeline_enable(t,
- (struct thread_pipeline_enable_msg_req *) req);
- thread_msg_send(t->msgq_out, rsp);
+ case THREAD_REQ_PIPELINE_ENABLE:
+ rsp = thread_msg_handle_pipeline_enable(t, req);
break;
- }
- case THREAD_MSG_REQ_PIPELINE_DISABLE: {
- rsp->status = thread_pipeline_disable(t,
- (struct thread_pipeline_disable_msg_req *) req);
- thread_msg_send(t->msgq_out, rsp);
+ case THREAD_REQ_PIPELINE_DISABLE:
+ rsp = thread_msg_handle_pipeline_disable(t, req);
break;
- }
- case THREAD_MSG_REQ_HEADROOM_READ: {
- struct thread_headroom_read_msg_rsp *rsp =
- (struct thread_headroom_read_msg_rsp *)
- req;
-
- rsp->headroom_ratio = t->headroom_ratio;
- rsp->status = 0;
- thread_msg_send(t->msgq_out, rsp);
- break;
- }
default:
- break;
+ rsp = (struct thread_msg_rsp *) req;
+ rsp->status = -1;
}
- return 0;
+ thread_msg_send(t->msgq_rsp, rsp);
+ }
}
-static void
-thread_headroom_update(struct app_thread_data *t, uint64_t time)
+/**
+ * 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)
{
- uint64_t time_diff = time - t->headroom_time;
+ struct pipeline_msg_req *req;
- t->headroom_ratio =
- ((double) t->headroom_cycles) / ((double) time_diff);
+ int status = rte_ring_sc_dequeue(msgq_req, (void **) &req);
- t->headroom_cycles = 0;
- t->headroom_time = rte_rdtsc_precise();
+ if (status != 0)
+ return NULL;
+
+ return req;
}
-int
-app_thread(void *arg)
+static inline void
+pipeline_msg_send(struct rte_ring *msgq_rsp,
+ struct pipeline_msg_rsp *rsp)
{
- struct app_params *app = (struct app_params *) arg;
- uint32_t core_id = rte_lcore_id(), i, j;
- struct app_thread_data *t = &app->thread_data[core_id];
-
- for (i = 0; ; i++) {
- uint32_t n_regular = RTE_MIN(t->n_regular, RTE_DIM(t->regular));
- uint32_t n_custom = RTE_MIN(t->n_custom, RTE_DIM(t->custom));
+ int status;
- /* Run regular pipelines */
- for (j = 0; j < n_regular; j++) {
- struct app_thread_pipeline_data *data = &t->regular[j];
- struct pipeline *p = data->be;
+ do {
+ status = rte_ring_sp_enqueue(msgq_rsp, rsp);
+ } while (status == -ENOBUFS);
+}
- PIPELINE_RUN_REGULAR(t, p);
- }
+static void
+pipeline_msg_handle(struct pipeline_data *p)
+{
+ for ( ; ; ) {
+ struct pipeline_msg_req *req;
+ struct pipeline_msg_rsp *rsp;
- /* Run custom pipelines */
- for (j = 0; j < n_custom; j++) {
- struct app_thread_pipeline_data *data = &t->custom[j];
+ req = pipeline_msg_recv(p->msgq_req);
+ if (req == NULL)
+ break;
- PIPELINE_RUN_CUSTOM(t, data);
+ switch (req->type) {
+ default:
+ rsp = (struct pipeline_msg_rsp *) req;
+ rsp->status = -1;
}
- /* Timer */
- if ((i & 0xF) == 0) {
- uint64_t time = rte_get_tsc_cycles();
- uint64_t t_deadline = UINT64_MAX;
+ pipeline_msg_send(p->msgq_rsp, rsp);
+ }
+}
- if (time < t->deadline)
- continue;
+/**
+ * Data plane threads: main
+ */
+int
+thread_main(void *arg __rte_unused)
+{
+ struct thread_data *t;
+ uint32_t thread_id, i;
- /* Timer for regular pipelines */
- for (j = 0; j < n_regular; j++) {
- struct app_thread_pipeline_data *data =
- &t->regular[j];
- uint64_t p_deadline = data->deadline;
+ thread_id = rte_lcore_id();
+ t = &thread_data[thread_id];
- if (p_deadline <= time) {
- data->f_timer(data->be);
- p_deadline = time + data->timer_period;
- data->deadline = p_deadline;
- }
+ /* Dispatch loop */
+ for (i = 0; ; i++) {
+ uint32_t j;
- if (p_deadline < t_deadline)
- t_deadline = p_deadline;
- }
+ /* Data Plane */
+ for (j = 0; j < t->n_pipelines; j++)
+ rte_pipeline_run(t->p[j]);
- /* Timer for custom pipelines */
- for (j = 0; j < n_custom; j++) {
- struct app_thread_pipeline_data *data =
- &t->custom[j];
- uint64_t p_deadline = data->deadline;
+ /* Control Plane */
+ if ((i & 0xF) == 0) {
+ uint64_t time = rte_get_tsc_cycles();
+ uint64_t time_next_min = UINT64_MAX;
- if (p_deadline <= time) {
- data->f_timer(data->be);
- p_deadline = time + data->timer_period;
- data->deadline = p_deadline;
+ if (time < t->time_next_min)
+ continue;
+
+ /* 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 (p_deadline < t_deadline)
- t_deadline = p_deadline;
+ if (time_next < time_next_min)
+ time_next_min = time_next;
}
- /* Timer for thread message request */
+ /* Thread message queues */
{
- uint64_t deadline = t->thread_req_deadline;
+ uint64_t time_next = t->time_next;
- if (deadline <= time) {
- thread_msg_req_handle(t);
- thread_headroom_update(t, time);
- deadline = time + t->timer_period;
- t->thread_req_deadline = deadline;
+ if (time_next <= time) {
+ thread_msg_handle(t);
+ time_next = time + t->timer_period;
+ t->time_next = time_next;
}
- if (deadline < t_deadline)
- t_deadline = deadline;
+ if (time_next < time_next_min)
+ time_next_min = time_next;
}
-
- t->deadline = t_deadline;
+ t->time_next_min = time_next_min;
}
}
git.droids-corp.org / dpdk.git / blobdiff