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/*
// Copyright (c) 2010-2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#include "prox_malloc.h"
#include "lconf.h"
#include "rx_pkt.h"
#include "tx_pkt.h"
#include "log.h"
#include "quit.h"
#include "prox_cfg.h"
struct lcore_cfg *lcore_cfg;
/* only used at initialization time */
struct lcore_cfg lcore_cfg_init[RTE_MAX_LCORE];
static int core_targ_next_from(struct lcore_cfg **lconf, struct task_args **targ, struct lcore_cfg *lcore_cfg, const int with_master)
{
uint32_t lcore_id, task_id;
if (*lconf && *targ) {
lcore_id = *lconf - lcore_cfg;
task_id = *targ - lcore_cfg[lcore_id].targs;
if (task_id + 1 < lcore_cfg[lcore_id].n_tasks_all) {
*targ = &lcore_cfg[lcore_id].targs[task_id + 1];
return 0;
} else {
if (prox_core_next(&lcore_id, with_master))
return -1;
*lconf = &lcore_cfg[lcore_id];
*targ = &lcore_cfg[lcore_id].targs[0];
return 0;
}
} else {
lcore_id = -1;
if (prox_core_next(&lcore_id, with_master))
return -1;
*lconf = &lcore_cfg[lcore_id];
*targ = &lcore_cfg[lcore_id].targs[0];
return 0;
}
}
int core_targ_next(struct lcore_cfg **lconf, struct task_args **targ, const int with_master)
{
return core_targ_next_from(lconf, targ, lcore_cfg, with_master);
}
int core_targ_next_early(struct lcore_cfg **lconf, struct task_args **targ, const int with_master)
{
return core_targ_next_from(lconf, targ, lcore_cfg_init, with_master);
}
struct task_args *core_targ_get(uint32_t lcore_id, uint32_t task_id)
{
return &lcore_cfg[lcore_id].targs[task_id];
}
void lcore_cfg_alloc_hp(void)
{
size_t mem_size = RTE_MAX_LCORE * sizeof(struct lcore_cfg);
lcore_cfg = prox_zmalloc(mem_size, rte_socket_id());
PROX_PANIC(lcore_cfg == NULL, "Could not allocate memory for core control structures\n");
rte_memcpy(lcore_cfg, lcore_cfg_init, mem_size);
/* get thread ID for master core */
lcore_cfg[rte_lcore_id()].thread_id = pthread_self();
}
int lconf_run(__attribute__((unused)) void *dummy)
{
uint32_t lcore_id = rte_lcore_id();
struct lcore_cfg *lconf = &lcore_cfg[lcore_id];
/* get thread ID, and set cancellation type to asynchronous */
lconf->thread_id = pthread_self();
int ret = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
if (ret != 0)
plog_warn("pthread_setcanceltype() failed on core %u: %i\n", lcore_id, ret);
plog_info("Entering main loop on core %u\n", lcore_id);
return lconf->thread_x(lconf);
}
static void msg_stop(struct lcore_cfg *lconf)
{
int idx = -1;
struct task_base *t = NULL;
if (lconf->msg.task_id == -1) {
for (int i = 0; i < lconf->n_tasks_all; ++i) {
if (lconf->task_is_running[i]) {
lconf->task_is_running[i] = 0;
t = lconf->tasks_all[i];
if (t->aux->stop)
t->aux->stop(t);
}
}
lconf->n_tasks_run = 0;
if (t && t->aux->stop_last)
t->aux->stop_last(t);
}
else {
for (int i = 0; i < lconf->n_tasks_run; ++i) {
if (lconf_get_task_id(lconf, lconf->tasks_run[i]) == lconf->msg.task_id) {
idx = i;
}
else if (idx != -1) {
lconf->tasks_run[idx] = lconf->tasks_run[i];
idx++;
}
}
lconf->task_is_running[lconf->msg.task_id] = 0;
t = lconf->tasks_all[lconf->msg.task_id];
if (t->aux->stop)
t->aux->stop(t);
lconf->n_tasks_run--;
if (lconf->n_tasks_run == 0 && t->aux->stop_last)
t->aux->stop_last(t);
}
}
static void msg_start(struct lcore_cfg *lconf)
{
int idx = 1;
struct task_base *t = NULL;
if (lconf->msg.task_id == -1) {
for (int i = 0; i < lconf->n_tasks_all; ++i) {
t = lconf->tasks_run[i] = lconf->tasks_all[i];
lconf->task_is_running[i] = 1;
if (lconf->n_tasks_run == 0 && t->aux->start_first) {
t->aux->start_first(t);
lconf->n_tasks_run = 1;
}
if (t->aux->start)
t->aux->start(t);
}
lconf->n_tasks_run = lconf->n_tasks_all;
}
else if (lconf->n_tasks_run == 0) {
t = lconf->tasks_run[0] = lconf->tasks_all[lconf->msg.task_id];
lconf->n_tasks_run = 1;
lconf->task_is_running[lconf->msg.task_id] = 1;
if (t->aux->start_first)
t->aux->start_first(t);
if (t->aux->start)
t->aux->start(t);
}
else {
for (int i = lconf->n_tasks_run - 1; i >= 0; --i) {
idx = lconf_get_task_id(lconf, lconf->tasks_run[i]);
if (idx == lconf->msg.task_id) {
break;
}
else if (idx > lconf->msg.task_id) {
lconf->tasks_run[i + 1] = lconf->tasks_run[i];
if (i == 0) {
lconf->tasks_run[i] = lconf->tasks_all[lconf->msg.task_id];
lconf->n_tasks_run++;
break;
}
}
else {
lconf->tasks_run[i + 1] = lconf->tasks_all[lconf->msg.task_id];
lconf->n_tasks_run++;
break;
}
}
lconf->task_is_running[lconf->msg.task_id] = 1;
if (lconf->tasks_all[lconf->msg.task_id]->aux->start)
lconf->tasks_all[lconf->msg.task_id]->aux->start(lconf->tasks_all[lconf->msg.task_id]);
}
}
int lconf_do_flags(struct lcore_cfg *lconf)
{
struct task_base *t;
int ret = 0;
switch (lconf->msg.type) {
case LCONF_MSG_STOP:
msg_stop(lconf);
ret = -1;
break;
case LCONF_MSG_START:
msg_start(lconf);
ret = -1;
break;
case LCONF_MSG_DUMP_RX:
case LCONF_MSG_DUMP_TX:
case LCONF_MSG_DUMP:
t = lconf->tasks_all[lconf->msg.task_id];
if (lconf->msg.val) {
if (lconf->msg.type == LCONF_MSG_DUMP ||
lconf->msg.type == LCONF_MSG_DUMP_RX) {
t->aux->task_rt_dump.n_print_rx = lconf->msg.val;
task_base_add_rx_pkt_function(t, rx_pkt_dump);
}
if (lconf->msg.type == LCONF_MSG_DUMP ||
lconf->msg.type == LCONF_MSG_DUMP_TX) {
t->aux->task_rt_dump.n_print_tx = lconf->msg.val;
if (t->tx_pkt == tx_pkt_l3) {
if (t->aux->tx_pkt_orig)
t->aux->tx_pkt_l2 = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->aux->tx_pkt_l2;
t->aux->tx_pkt_l2 = tx_pkt_dump;
} else {
if (t->aux->tx_pkt_orig)
t->tx_pkt = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->tx_pkt;
t->tx_pkt = tx_pkt_dump;
}
}
}
break;
case LCONF_MSG_TRACE:
t = lconf->tasks_all[lconf->msg.task_id];
if (lconf->msg.val) {
t->aux->task_rt_dump.n_trace = lconf->msg.val;
if (task_base_get_original_rx_pkt_function(t) != rx_pkt_dummy) {
task_base_add_rx_pkt_function(t, rx_pkt_trace);
if (t->tx_pkt == tx_pkt_l3) {
if (t->aux->tx_pkt_orig)
t->aux->tx_pkt_l2 = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->aux->tx_pkt_l2;
t->aux->tx_pkt_l2 = tx_pkt_trace;
} else {
if (t->aux->tx_pkt_orig)
t->tx_pkt = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->tx_pkt;
t->tx_pkt = tx_pkt_trace;
}
} else {
t->aux->task_rt_dump.n_print_tx = lconf->msg.val;
if (t->tx_pkt == tx_pkt_l3) {
if (t->aux->tx_pkt_orig)
t->aux->tx_pkt_l2 = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->aux->tx_pkt_l2;
t->aux->tx_pkt_l2 = tx_pkt_dump;
} else {
if (t->aux->tx_pkt_orig)
t->tx_pkt = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = t->tx_pkt;
t->tx_pkt = tx_pkt_dump;
}
}
}
break;
case LCONF_MSG_RX_DISTR_START:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
task_base_add_rx_pkt_function(t, rx_pkt_distr);
memset(t->aux->rx_bucket, 0, sizeof(t->aux->rx_bucket));
lconf->flags |= LCONF_FLAG_RX_DISTR_ACTIVE;
}
break;
case LCONF_MSG_TX_DISTR_START:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
if (t->tx_pkt == tx_pkt_l3) {
t->aux->tx_pkt_orig = t->aux->tx_pkt_l2;
t->aux->tx_pkt_l2 = tx_pkt_distr;
} else {
t->aux->tx_pkt_orig = t->tx_pkt;
t->tx_pkt = tx_pkt_distr;
}
memset(t->aux->tx_bucket, 0, sizeof(t->aux->tx_bucket));
lconf->flags |= LCONF_FLAG_TX_DISTR_ACTIVE;
}
break;
case LCONF_MSG_RX_DISTR_STOP:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
task_base_del_rx_pkt_function(t, rx_pkt_distr);
lconf->flags &= ~LCONF_FLAG_RX_DISTR_ACTIVE;
}
break;
case LCONF_MSG_TX_DISTR_STOP:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
if (t->aux->tx_pkt_orig) {
if (t->tx_pkt == tx_pkt_l3) {
t->tx_pkt = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = NULL;
} else {
t->aux->tx_pkt_l2 = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = NULL;
}
lconf->flags &= ~LCONF_FLAG_TX_DISTR_ACTIVE;
}
}
break;
case LCONF_MSG_RX_DISTR_RESET:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
memset(t->aux->rx_bucket, 0, sizeof(t->aux->rx_bucket));
}
break;
case LCONF_MSG_TX_DISTR_RESET:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
memset(t->aux->tx_bucket, 0, sizeof(t->aux->tx_bucket));
}
break;
case LCONF_MSG_RX_BW_START:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
task_base_add_rx_pkt_function(t, rx_pkt_bw);
lconf->flags |= LCONF_FLAG_RX_BW_ACTIVE;
}
break;
case LCONF_MSG_RX_BW_STOP:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
task_base_del_rx_pkt_function(t, rx_pkt_bw);
lconf->flags &= ~LCONF_FLAG_RX_BW_ACTIVE;
}
break;
case LCONF_MSG_TX_BW_START:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
if (t->tx_pkt == tx_pkt_l3) {
t->aux->tx_pkt_orig = t->aux->tx_pkt_l2;
t->aux->tx_pkt_l2 = tx_pkt_bw;
} else {
t->aux->tx_pkt_orig = t->tx_pkt;
t->tx_pkt = tx_pkt_bw;
}
lconf->flags |= LCONF_FLAG_TX_BW_ACTIVE;
}
break;
case LCONF_MSG_TX_BW_STOP:
for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
t = lconf->tasks_all[task_id];
if (t->aux->tx_pkt_orig) {
if (t->tx_pkt == tx_pkt_l3) {
t->aux->tx_pkt_l2 = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = NULL;
} else {
t->tx_pkt = t->aux->tx_pkt_orig;
t->aux->tx_pkt_orig = NULL;
}
lconf->flags &= ~LCONF_FLAG_TX_BW_ACTIVE;
}
}
break;
}
lconf_unset_req(lconf);
return ret;
}
int lconf_get_task_id(const struct lcore_cfg *lconf, const struct task_base *task)
{
for (int i = 0; i < lconf->n_tasks_all; ++i) {
if (lconf->tasks_all[i] == task)
return i;
}
return -1;
}
int lconf_task_is_running(const struct lcore_cfg *lconf, uint8_t task_id)
{
return lconf->task_is_running[task_id];
}
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