/*
// 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 <string.h>
#include <rte_table_hash.h>
#include <rte_version.h>
#include <rte_malloc.h>
#if RTE_VERSION >= RTE_VERSION_NUM(18,5,0,0)
#include <rte_eal_memconfig.h>
#endif

#include "prox_malloc.h"
#include "display.h"
#include "commands.h"
#include "log.h"
#include "run.h"
#include "lconf.h"
#include "hash_utils.h"
#include "prox_cfg.h"
#include "prox_port_cfg.h"
#include "defines.h"
#include "handle_qos.h"
#include "handle_qinq_encap4.h"
#include "quit.h"
#include "input.h"
#include "rw_reg.h"
#include "cqm.h"
#include "stats_core.h"

void start_core_all(int task_id)
{
	uint32_t cores[RTE_MAX_LCORE];
	uint32_t lcore_id;
	char tmp[256];
	int cnt = 0;

	prox_core_to_str(tmp, sizeof(tmp), 0);
	plog_info("Starting cores: %s\n", tmp);

	lcore_id = -1;
	while (prox_core_next(&lcore_id, 0) == 0) {
		cores[cnt++] = lcore_id;
	}
	start_cores(cores, cnt, task_id);
}

void stop_core_all(int task_id)
{
	uint32_t cores[RTE_MAX_LCORE];
	uint32_t lcore_id;
	char tmp[256];
	int cnt = 0;

	prox_core_to_str(tmp, sizeof(tmp), 0);
	plog_info("Stopping cores: %s\n", tmp);

	lcore_id = -1;
	while (prox_core_next(&lcore_id, 0) == 0) {
		cores[cnt++] = lcore_id;
	}

	stop_cores(cores, cnt, task_id);
}

static void warn_inactive_cores(uint32_t *cores, int count, const char *prefix)
{
	for (int i = 0; i < count; ++i) {
		if (!prox_core_active(cores[i], 0)) {
			plog_warn("%s %u: core is not active\n", prefix, cores[i]);
		}
	}
}

static inline int wait_command_handled(struct lcore_cfg *lconf)
{
	uint64_t t1 = rte_rdtsc(), t2;
	int max_time = 5;

	if (lconf->msg.type == LCONF_MSG_STOP)
		max_time = 30;

	while (lconf_is_req(lconf)) {
		t2 = rte_rdtsc();
		if (t2 - t1 > max_time * rte_get_tsc_hz()) {
			// Failed to handle command ...
			for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
				struct task_args *targs = &lconf->targs[task_id];
				if (!(targs->flags & TASK_ARG_DROP)) {
					plogx_err("Failed to handle command - task is in NO_DROP and might be stuck...\n");
					return - 1;
				}
			}
			plogx_err("Failed to handle command\n");
			return -1;
		}
	}
	return 0;
}

static inline void start_l3(struct task_args *targ)
{
	if (!task_is_master(targ)) {
		if ((targ->nb_txrings != 0) || (targ->nb_txports != 0)) {
			if (targ->flags & TASK_ARG_L3)
				task_start_l3(targ->tbase, targ);
		}
	}
}

void start_cores(uint32_t *cores, int count, int task_id)
{
	int n_started_cores = 0;
	uint32_t started_cores[RTE_MAX_LCORE];
	struct task_args *targ;

	warn_inactive_cores(cores, count, "Can't start core");

	for (int i = 0; i < count; ++i) {
		struct lcore_cfg *lconf = &lcore_cfg[cores[i]];

		if (lconf->n_tasks_run != lconf->n_tasks_all) {
			if (task_id == -1) {
				for (uint8_t tid = 0; tid < lconf->n_tasks_all; ++tid) {
					targ = &lconf->targs[tid];
					start_l3(targ);
				}
			} else {
				targ = &lconf->targs[task_id];
				start_l3(targ);
			}
			lconf->msg.type = LCONF_MSG_START;
			lconf->msg.task_id = task_id;
			lconf_set_req(lconf);
			if (task_id == -1)
				plog_info("Starting core %u (all tasks)\n", cores[i]);
			else
				plog_info("Starting core %u task %u\n", cores[i], task_id);
			started_cores[n_started_cores++] = cores[i];
			lconf->flags |= LCONF_FLAG_RUNNING;
			rte_eal_remote_launch(lconf_run, NULL, cores[i]);
		}
		else {
			plog_warn("Core %u is already running all its tasks\n", cores[i]);
		}
	}

	/* This function is blocking, so detect when each core has
	   consumed the message. */
	for (int i = 0; i < n_started_cores; ++i) {
		struct lcore_cfg *lconf = &lcore_cfg[started_cores[i]];
		plog_info("Waiting for core %u to start...", started_cores[i]);
		if (wait_command_handled(lconf) == -1) return;
		plog_info(" OK\n");
	}
}

void stop_cores(uint32_t *cores, int count, int task_id)
{
	int n_stopped_cores = 0;
	uint32_t stopped_cores[RTE_MAX_LCORE];
	uint32_t c;

	warn_inactive_cores(cores, count, "Can't stop core");

	for (int i = 0; i < count; ++i) {
		struct lcore_cfg *lconf = &lcore_cfg[cores[i]];
		if (lconf->n_tasks_run) {
			if (wait_command_handled(lconf) == -1) return;

			lconf->msg.type = LCONF_MSG_STOP;
			lconf->msg.task_id = task_id;
			lconf_set_req(lconf);
			stopped_cores[n_stopped_cores++] = cores[i];
		}
	}

	for (int i = 0; i < n_stopped_cores; ++i) {
		c = stopped_cores[i];
		struct lcore_cfg *lconf = &lcore_cfg[c];
		if (wait_command_handled(lconf) == -1) return;

		if (lconf->n_tasks_run == 0) {
			plog_info("All tasks stopped on core %u, waiting for core to stop...", c);
			rte_eal_wait_lcore(c);
			plog_info(" OK\n");
			lconf->flags &= ~LCONF_FLAG_RUNNING;
		}
		else {
			plog_info("Stopped task %u on core %u\n", task_id, c);
		}
	}
}

struct size_unit {
	uint64_t val;
	uint64_t frac;
	char     unit[8];
};

static struct size_unit to_size_unit(uint64_t bytes)
{
	struct size_unit ret;

	if (bytes > 1 << 30) {
		ret.val = bytes >> 30;
		ret.frac = ((bytes - (ret.val << 30)) * 1000) / (1 << 30);
		strcpy(ret.unit, "GB");
	}
	else if (bytes > 1 << 20) {
		ret.val = bytes >> 20;
		ret.frac = ((bytes - (ret.val << 20)) * 1000) / (1 << 20);
		strcpy(ret.unit, "MB");
	}
	else if (bytes > 1 << 10) {
		ret.val = bytes >> 10;
		ret.frac = (bytes - (ret.val << 10)) * 1000 / (1 << 10);
		strcpy(ret.unit, "KB");
	}
	else {
		ret.val = bytes;
		ret.frac = 0;
		strcpy(ret.unit, "B");
	}

	return ret;
}

void cmd_mem_stats(void)
{
	struct rte_malloc_socket_stats sock_stats;
	uint64_t v;
	struct size_unit su;

	for (uint32_t i = 0; i < RTE_MAX_NUMA_NODES; ++i) {
		if (rte_malloc_get_socket_stats(i, &sock_stats) < 0 || sock_stats.heap_totalsz_bytes == 0)
			continue;

		plogx_info("Socket %u memory stats:\n", i);
		su = to_size_unit(sock_stats.heap_totalsz_bytes);
		plogx_info("\tHeap_size: %zu.%03zu %s\n", su.val, su.frac, su.unit);
		su = to_size_unit(sock_stats.heap_freesz_bytes);
		plogx_info("\tFree_size: %zu.%03zu %s\n", su.val, su.frac, su.unit);
		su = to_size_unit(sock_stats.heap_allocsz_bytes);
		plogx_info("\tAlloc_size: %zu.%03zu %s\n", su.val, su.frac, su.unit);
		su = to_size_unit(sock_stats.greatest_free_size);
		plogx_info("\tGreatest_free_size: %zu %s\n", su.val, su.unit);
		plogx_info("\tAlloc_count: %u\n", sock_stats.alloc_count);
		plogx_info("\tFree_count: %u\n", sock_stats.free_count);
	}
}

static void get_hp_sz_string(char *sz_str, uint64_t hp_sz)
{
	switch (hp_sz >> 20) {
	case 0:
		strcpy(sz_str, " 0 ");
		break;
	case 2:
		strcpy(sz_str, "2MB");
		break;
	case 1024:
		strcpy(sz_str, "1GB");
		break;
	default:
		strcpy(sz_str, "??");
	}
}

#if RTE_VERSION >= RTE_VERSION_NUM(18,5,0,0)
// Print all segments, 1 by 1
// Unused for now, keep for reference
static int print_all_segments(const struct rte_memseg_list *memseg_list, const struct rte_memseg *memseg, void *arg)
{
	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
	int memseg_list_idx, memseg_idx;
	int n = (*(int *)arg)++;

	memseg_list_idx = memseg_list - mcfg->memsegs;
	if ((memseg_list_idx < 0) || (memseg_list_idx >= RTE_MAX_MEMSEG_LISTS)) {
		plog_err("Invalid memseg_list_idx = %d; memseg_list = %p, mcfg->memsegs = %p\n", memseg_list_idx, memseg_list, mcfg->memsegs);
		return -1;
	}
	memseg_idx = rte_fbarray_find_idx(&memseg_list->memseg_arr, memseg);
	if (memseg_idx < 0) {
		plog_err("Invalid memseg_idx = %d; memseg_list = %p, memseg = %p\n", memseg_idx, memseg_list, memseg);
		return -1;
	}

	char sz_str[5];
	get_hp_sz_string(sz_str, memseg->hugepage_sz);
	plog_info("Segment %u (sock %d): [%i-%i] [%#lx-%#lx] at %p using %zu pages of %s\n",
		n,
		memseg->socket_id,
		memseg_list_idx,
		memseg_idx,
		memseg->iova,
		memseg->iova+memseg->len,
		memseg->addr,
		memseg->len/memseg->hugepage_sz, sz_str);

        return 0;
}

// Print memory segments
// Contiguous segments are shown as 1 big segment
static int print_segments(const struct rte_memseg_list *memseg_list, const struct rte_memseg *memseg, size_t len, void *arg)
{
	struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
	int memseg_list_idx, memseg_idx;
	static int n = 0;

	memseg_list_idx = memseg_list - mcfg->memsegs;
	if ((memseg_list_idx < 0) || (memseg_list_idx >= RTE_MAX_MEMSEG_LISTS)) {
		plog_err("Invalid memseg_list_idx = %d; memseg_list = %p, mcfg->memsegs = %p\n", memseg_list_idx, memseg_list, mcfg->memsegs);
		return -1;
	}
	memseg_idx = rte_fbarray_find_idx(&memseg_list->memseg_arr, memseg);
	if (memseg_idx < 0) {
		plog_err("Invalid memseg_idx = %d; memseg_list = %p, memseg = %p\n", memseg_idx, memseg_list, memseg);
		return -1;
	}

	char sz_str[5];
	get_hp_sz_string(sz_str, memseg->hugepage_sz);
	plog_info("Segment %u (sock %d): [%i-%i] [%#lx-%#lx] at %p using %zu pages of %s\n",
		n++,
		memseg->socket_id,
		memseg_list_idx,
		memseg_idx,
		memseg->iova,
		memseg->iova+len,
		memseg->addr,
		memseg->hugepage_sz?len/memseg->hugepage_sz:0, sz_str);

        return 0;
}

#endif
void cmd_mem_layout(void)
{
#if RTE_VERSION < RTE_VERSION_NUM(18,5,0,0)
	const struct rte_memseg* memseg = rte_eal_get_physmem_layout();

	plog_info("Memory layout:\n");
	for (uint32_t i = 0; i < RTE_MAX_MEMSEG; i++) {
		if (memseg[i].addr == NULL)
			break;

		char sz_str[5];
		get_hp_sz_string(sz_str, memseg[i].hugepage_sz);

		plog_info("Segment %u: [%#lx-%#lx] at %p using %zu pages of %s\n",
			  i,
			  memseg[i].phys_addr,
			  memseg[i].phys_addr + memseg[i].len,
			  memseg[i].addr,
			  memseg[i].len/memseg[i].hugepage_sz, sz_str);
	}
#else
	int segment_number = 0;
	//rte_memseg_walk(print_all_segments, &segment_number);
	rte_memseg_contig_walk(print_segments, &segment_number);
#endif
}

void cmd_dump(uint8_t lcore_id, uint8_t task_id, uint32_t nb_packets, struct input *input, int rx, int tx)
{
	plog_info("dump %u %u %u\n", lcore_id, task_id, nb_packets);
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	}
	else if (task_id >= lcore_cfg[lcore_id].n_tasks_all) {
		plog_warn("task_id too high, should be in [0, %u]\n", lcore_cfg[lcore_id].n_tasks_all - 1);
	}
	else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		lconf->tasks_all[task_id]->aux->task_rt_dump.input = input;

		if (wait_command_handled(lconf) == -1) return;
		if (rx && tx)
			lconf->msg.type = LCONF_MSG_DUMP;
		else if (rx)
			lconf->msg.type = LCONF_MSG_DUMP_RX;
		else if (tx)
			lconf->msg.type = LCONF_MSG_DUMP_TX;

		if (rx || tx) {
			lconf->msg.task_id = task_id;
			lconf->msg.val  = nb_packets;
			lconf_set_req(lconf);
		}

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_trace(uint8_t lcore_id, uint8_t task_id, uint32_t nb_packets)
{
	plog_info("trace %u %u %u\n", lcore_id, task_id, nb_packets);
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	}
	else if (task_id >= lcore_cfg[lcore_id].n_tasks_all) {
		plog_warn("task_id too high, should be in [0, %u]\n", lcore_cfg[lcore_id].n_tasks_all - 1);
	}
	else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;

		lconf->msg.type = LCONF_MSG_TRACE;
		lconf->msg.task_id = task_id;
		lconf->msg.val  = nb_packets;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_rx_bw_start(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (lcore_cfg[lcore_id].flags & LCONF_FLAG_RX_BW_ACTIVE) {
		plog_warn("rx bandwidt already on core %u\n", lcore_id);
	} else {

		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_RX_BW_START;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_tx_bw_start(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (lcore_cfg[lcore_id].flags & LCONF_FLAG_TX_BW_ACTIVE) {
		plog_warn("tx bandwidth already running on core %u\n", lcore_id);
	} else {

		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_TX_BW_START;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_rx_bw_stop(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (!(lcore_cfg[lcore_id].flags & LCONF_FLAG_RX_BW_ACTIVE)) {
		plog_warn("rx bandwidth not running on core %u\n", lcore_id);
	} else {

		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_RX_BW_STOP;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_tx_bw_stop(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (!(lcore_cfg[lcore_id].flags & LCONF_FLAG_TX_BW_ACTIVE)) {
		plog_warn("tx bandwidth not running on core %u\n", lcore_id);
	} else {

		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_TX_BW_STOP;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}
void cmd_rx_distr_start(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (lcore_cfg[lcore_id].flags & LCONF_FLAG_RX_DISTR_ACTIVE) {
		plog_warn("rx distribution already xrunning on core %u\n", lcore_id);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_RX_DISTR_START;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_tx_distr_start(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if (lcore_cfg[lcore_id].flags & LCONF_FLAG_TX_DISTR_ACTIVE) {
		plog_warn("tx distribution already xrunning on core %u\n", lcore_id);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_TX_DISTR_START;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_rx_distr_stop(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if ((lcore_cfg[lcore_id].flags & LCONF_FLAG_RX_DISTR_ACTIVE) == 0) {
		plog_warn("rx distribution not running on core %u\n", lcore_id);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_RX_DISTR_STOP;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_tx_distr_stop(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else if ((lcore_cfg[lcore_id].flags & LCONF_FLAG_TX_DISTR_ACTIVE) == 0) {
		plog_warn("tx distribution not running on core %u\n", lcore_id);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_TX_DISTR_STOP;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_rx_distr_rst(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_RX_DISTR_RESET;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_tx_distr_rst(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else {
		struct lcore_cfg *lconf = &lcore_cfg[lcore_id];

		if (wait_command_handled(lconf) == -1) return;
		lconf->msg.type = LCONF_MSG_TX_DISTR_RESET;
		lconf_set_req(lconf);

		if (lconf->n_tasks_run == 0) {
			lconf_do_flags(lconf);
		}
	}
}

void cmd_rx_distr_show(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else {
		for (uint32_t i = 0; i < lcore_cfg[lcore_id].n_tasks_all; ++i) {
			struct task_base *t = lcore_cfg[lcore_id].tasks_all[i];
			plog_info("t[%u]: ", i);
			for (uint32_t j = 0; j < sizeof(t->aux->rx_bucket)/sizeof(t->aux->rx_bucket[0]); ++j) {
				plog_info("%u ", t->aux->rx_bucket[j]);
			}
			plog_info("\n");
		}
	}
}
void cmd_tx_distr_show(uint32_t lcore_id)
{
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	} else {
		for (uint32_t i = 0; i < lcore_cfg[lcore_id].n_tasks_all; ++i) {
			struct task_base *t = lcore_cfg[lcore_id].tasks_all[i];
			uint64_t tot = 0, avg = 0;
			for (uint32_t j = 0; j < sizeof(t->aux->tx_bucket)/sizeof(t->aux->tx_bucket[0]); ++j) {
				tot += t->aux->tx_bucket[j];
				avg += j * t->aux->tx_bucket[j];
			}
			if (tot) {
				avg = avg / tot;
			}
			plog_info("t[%u]: %lu: ", i, avg);
			for (uint32_t j = 0; j < sizeof(t->aux->tx_bucket)/sizeof(t->aux->tx_bucket[0]); ++j) {
				plog_info("%u ", t->aux->tx_bucket[j]);
			}
			plog_info("\n");
		}
	}
}

void cmd_ringinfo_all(void)
{
	struct lcore_cfg *lconf;
	uint32_t lcore_id = -1;

	while(prox_core_next(&lcore_id, 0) == 0) {
		lconf = &lcore_cfg[lcore_id];
		for (uint8_t task_id = 0; task_id < lconf->n_tasks_all; ++task_id) {
			cmd_ringinfo(lcore_id, task_id);
		}
	}
}

void cmd_ringinfo(uint8_t lcore_id, uint8_t task_id)
{
	struct lcore_cfg *lconf;
	struct rte_ring *ring;
	struct task_args* targ;
	uint32_t count;

	if (!prox_core_active(lcore_id, 0)) {
		plog_info("lcore %u is not active\n", lcore_id);
		return;
	}
	lconf = &lcore_cfg[lcore_id];
	if (task_id >= lconf->n_tasks_all) {
		plog_warn("Invalid task index %u: lcore %u has %u tasks\n", task_id, lcore_id, lconf->n_tasks_all);
		return;
	}

	targ = &lconf->targs[task_id];
	plog_info("Core %u task %u: %u rings\n", lcore_id, task_id, targ->nb_rxrings);
	for (uint8_t i = 0; i < targ->nb_rxrings; ++i) {
		ring = targ->rx_rings[i];
#if RTE_VERSION < RTE_VERSION_NUM(17,5,0,1)
		count = ring->prod.mask + 1;
#else
		count = ring->mask + 1;
#endif
		plog_info("\tRing %u:\n", i);
		plog_info("\t\tFlags: %s,%s\n", ring->flags & RING_F_SP_ENQ? "sp":"mp", ring->flags & RING_F_SC_DEQ? "sc":"mc");
		plog_info("\t\tMemory size: %zu bytes\n", rte_ring_get_memsize(count));
		plog_info("\t\tOccupied: %u/%u\n", rte_ring_count(ring), count);
	}
}

void cmd_port_up(uint8_t port_id)
{
	int err;

	if (!port_is_active(port_id)) {
		return ;
	}

	if ((err = rte_eth_dev_set_link_up(port_id)) == 0) {
		plog_info("Bringing port %d up\n", port_id);
	}
	else {
		plog_warn("Failed to bring port %d up with error %d\n", port_id, err);
	}
}

void cmd_port_down(uint8_t port_id)
{
	int err;

	if (!port_is_active(port_id)) {
		return ;
	}

	if ((err = rte_eth_dev_set_link_down(port_id)) == 0) {
		plog_info("Bringing port %d down\n", port_id);
	}
	else {
		plog_warn("Failed to bring port %d down with error %d\n", port_id, err);
	}
}

void cmd_xstats(uint8_t port_id)
{
#if RTE_VERSION >= RTE_VERSION_NUM(16,7,0,0)
	int n_xstats;
	struct rte_eth_xstat *eth_xstat = NULL;	// id and value
	struct rte_eth_xstat_name *eth_xstat_name = NULL;	// only names
	struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];
	int rc;

	n_xstats = rte_eth_xstats_get(port_id, NULL, 0);
	eth_xstat_name = prox_zmalloc(n_xstats * sizeof(*eth_xstat_name), port_cfg->socket);
	PROX_ASSERT(eth_xstat_name);
	rc = rte_eth_xstats_get_names(port_id, eth_xstat_name, n_xstats);
	if ((rc < 0) || (rc > n_xstats)) {
		if (rc < 0) {
			plog_warn("Failed to get xstats_names on port %d with error %d\n", port_id, rc);
		} else if (rc > n_xstats) {
			plog_warn("Failed to get xstats_names on port %d: too many xstats (%d)\n", port_id, rc);
		}
	}

	eth_xstat = prox_zmalloc(n_xstats * sizeof(*eth_xstat), port_cfg->socket);
	PROX_ASSERT(eth_xstat);
	rc = rte_eth_xstats_get(port_id, eth_xstat, n_xstats);
	if ((rc < 0) || (rc > n_xstats)) {
		if (rc < 0) {
			plog_warn("Failed to get xstats on port %d with error %d\n", port_id, rc);
		} else if (rc > n_xstats) {
			plog_warn("Failed to get xstats on port %d: too many xstats (%d)\n", port_id, rc);
		}
	} else {
		for (int i=0;i<rc;i++) {
			plog_info("%s: %ld\n", eth_xstat_name[i].name, eth_xstat[i].value);
		}
	}
	if (eth_xstat_name)
		prox_free(eth_xstat_name);
	if (eth_xstat)
		prox_free(eth_xstat);
#else
#if RTE_VERSION >= RTE_VERSION_NUM(2,1,0,0)
	int n_xstats;
	struct rte_eth_xstats *eth_xstats;
	struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];
	int rc;

	n_xstats = rte_eth_xstats_get(port_id, NULL, 0);
	eth_xstats = prox_zmalloc(n_xstats * sizeof(*eth_xstats), port_cfg->socket);
	PROX_ASSERT(eth_xstats);
	rc = rte_eth_xstats_get(port_id, eth_xstats, n_xstats);
	if ((rc < 0) || (rc > n_xstats)) {
		if (rc < 0) {
			plog_warn("Failed to get xstats on port %d with error %d\n", port_id, rc);
		} else if (rc > n_xstats) {
			plog_warn("Failed to get xstats on port %d: too many xstats (%d)\n", port_id, rc);
		}
	} else {
		for (int i=0;i<rc;i++) {
			plog_info("%s: %ld\n", eth_xstats[i].name, eth_xstats[i].value);
		}
	}
	if (eth_xstats)
		prox_free(eth_xstats);
#else
	plog_warn("Failed to get xstats, xstats are not supported in this version of dpdk\n");
#endif
#endif
}

void cmd_portinfo(int port_id, char *dst, size_t max_len)
{
	char *end = dst + max_len;

	*dst = 0;
	if (port_id == -1) {
		uint8_t max_port_idx = prox_last_port_active() + 1;

		for (uint8_t port_id = 0; port_id < max_port_idx; ++port_id) {
			if (!prox_port_cfg[port_id].active) {
				continue;
			}
			struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];

			dst += snprintf(dst, end - dst,
					"%2d:%10s; "MAC_BYTES_FMT"; %s\n",
					port_id,
					port_cfg->name,
					MAC_BYTES(port_cfg->eth_addr.addr_bytes),
					port_cfg->pci_addr);
		}
		return;
	}

	if (!port_is_active(port_id)) {
		return ;
	}

	struct prox_port_cfg* port_cfg = &prox_port_cfg[port_id];

	dst += snprintf(dst, end - dst, "Port info for port %u\n", port_id);
	dst += snprintf(dst, end - dst, "\tName: %s\n", port_cfg->name);
	dst += snprintf(dst, end - dst, "\tDriver: %s\n", port_cfg->driver_name);
	dst += snprintf(dst, end - dst, "\tMac address: "MAC_BYTES_FMT"\n", MAC_BYTES(port_cfg->eth_addr.addr_bytes));
	dst += snprintf(dst, end - dst, "\tLink speed: %u Mbps\n", port_cfg->link_speed);
	dst += snprintf(dst, end - dst, "\tLink max speed: %u Mbps\n", port_cfg->max_link_speed);
	dst += snprintf(dst, end - dst, "\tLink status: %s\n", port_cfg->link_up? "up" : "down");
	dst += snprintf(dst, end - dst, "\tSocket: %u\n", port_cfg->socket);
	dst += snprintf(dst, end - dst, "\tPCI address: %s\n", port_cfg->pci_addr);
	dst += snprintf(dst, end - dst, "\tPromiscuous: %s\n", port_cfg->promiscuous? "yes" : "no");
	dst += snprintf(dst, end - dst, "\tNumber of RX/TX descriptors: %u/%u\n", port_cfg->n_rxd, port_cfg->n_txd);
	dst += snprintf(dst, end - dst, "\tNumber of RX/TX queues: %u/%u (max: %u/%u)\n", port_cfg->n_rxq, port_cfg->n_txq, port_cfg->max_rxq, port_cfg->max_txq);
	dst += snprintf(dst, end - dst, "\tMemory pools:\n");

	for (uint8_t i = 0; i < 32; ++i) {
		if (port_cfg->pool[i]) {
			dst += snprintf(dst, end - dst, "\t\tname: %s (%p)\n",
					port_cfg->pool[i]->name, port_cfg->pool[i]);
		}
	}
}

void cmd_read_reg(uint8_t port_id, unsigned int id)
{
	unsigned int val, rc;
	if (!port_is_active(port_id)) {
		return ;
	}
	rc = read_reg(port_id, id, &val);
	if (rc) {
		plog_warn("Failed to read register %d on port %d\n", id, port_id);
	}
	else {
		plog_info("Register 0x%08X : %08X \n", id, val);
	}
}

void cmd_reset_port(uint8_t portid)
{
	unsigned int rc;
	if (!prox_port_cfg[portid].active) {
		plog_info("port not active \n");
		return;
	}
	rte_eth_dev_stop(portid);
	rc = rte_eth_dev_start(portid);
	if (rc) {
		plog_warn("Failed to restart port %d\n", portid);
	}
}
void cmd_write_reg(uint8_t port_id, unsigned int id, unsigned int val)
{
	if (!port_is_active(port_id)) {
		return ;
	}

	plog_info("writing 0x%08X %08X\n", id, val);
	write_reg(port_id, id, val);
}

void cmd_set_vlan_offload(uint8_t port_id, unsigned int val)
{
	if (!port_is_active(port_id)) {
		return ;
	}

	plog_info("setting vlan offload to %d\n", val);
	if (val & ~(ETH_VLAN_STRIP_OFFLOAD | ETH_VLAN_FILTER_OFFLOAD | ETH_VLAN_EXTEND_OFFLOAD)) {
		plog_info("wrong vlan offload value\n");
	}
	int ret = rte_eth_dev_set_vlan_offload(port_id, val);
	plog_info("rte_eth_dev_set_vlan_offload return %d\n", ret);
}

void cmd_set_vlan_filter(uint8_t port_id, unsigned int id, unsigned int val)
{
	if (!port_is_active(port_id)) {
		return ;
	}

	plog_info("setting vln filter for vlan %d to %d\n", id, val);
	int ret = rte_eth_dev_vlan_filter(port_id, id, val);
	plog_info("rte_eth_dev_vlan_filter return %d\n", ret);
}

void cmd_thread_info(uint8_t lcore_id, uint8_t task_id)
{
	plog_info("thread_info %u %u \n", lcore_id, task_id);
	if (lcore_id > RTE_MAX_LCORE) {
		plog_warn("core_id too high, maximum allowed is: %u\n", RTE_MAX_LCORE);
	}
	if (!prox_core_active(lcore_id, 0)) {
		plog_warn("lcore %u is not active\n", lcore_id);
		return;
	}
	if (task_id >= lcore_cfg[lcore_id].n_tasks_all) {
		plog_warn("task_id too high, should be in [0, %u]\n", lcore_cfg[lcore_id].n_tasks_all - 1);
		return;
	}
	if (strcmp(lcore_cfg[lcore_id].targs[task_id].task_init->mode_str, "qos") == 0) {
		struct task_base *task;

		task = lcore_cfg[lcore_id].tasks_all[task_id];
		plog_info("core %d, task %d: %d mbufs stored in QoS\n", lcore_id, task_id,
			  task_qos_n_pkts_buffered(task));

#ifdef ENABLE_EXTRA_USER_STATISTICS
	}
	else if (lcore_cfg[lcore_id].targs[task_id].mode == QINQ_ENCAP4) {
		struct task_qinq_encap4 *task;
		task = (struct task_qinq_encap4 *)(lcore_cfg[lcore_id].tasks_all[task_id]);
		for (int i=0;i<task->n_users;i++) {
			if (task->stats_per_user[i])
				plog_info("User %d: %d packets\n", i, task->stats_per_user[i]);
		}
#endif
	}
	else {
		// Only QoS thread info so far
		plog_err("core %d, task %d: not a qos core (%p)\n", lcore_id, task_id, lcore_cfg[lcore_id].thread_x);
	}
}

void cmd_rx_tx_info(void)
{
	uint32_t lcore_id = -1;
	while(prox_core_next(&lcore_id, 0) == 0) {
		for (uint8_t task_id = 0; task_id < lcore_cfg[lcore_id].n_tasks_all; ++task_id) {
			struct task_args *targ = &lcore_cfg[lcore_id].targs[task_id];

			plog_info("Core %u:", lcore_id);
			if (targ->rx_port_queue[0].port != OUT_DISCARD) {
				for (int i = 0; i < targ->nb_rxports; i++) {
					plog_info(" RX port %u (queue %u)", targ->rx_port_queue[i].port, targ->rx_port_queue[i].queue);
				}
			}
			else {
				for (uint8_t j = 0; j < targ->nb_rxrings; ++j) {
					plog_info(" RX ring[%u,%u] %p", task_id, j, targ->rx_rings[j]);
				}
			}
			plog_info(" ==>");
			for (uint8_t j = 0; j < targ->nb_txports; ++j) {
				plog_info(" TX port %u (queue %u)", targ->tx_port_queue[j].port,
					  targ->tx_port_queue[j].queue);
			}

			for (uint8_t j = 0; j < targ->nb_txrings; ++j) {
				plog_info(" TX ring %p", targ->tx_rings[j]);
			}

			plog_info("\n");
		}
	}
}
void cmd_get_cache_class(uint32_t lcore_id, uint32_t *set)
{
	uint64_t tmp_rmid = 0;
	cqm_assoc_read(lcore_id, &tmp_rmid);
	*set = (uint32_t)(tmp_rmid >> 32);
}

void cmd_get_cache_class_mask(uint32_t lcore_id, uint32_t set, uint32_t *val)
{
	cat_get_class_mask(lcore_id, set, val);
}

void cmd_set_cache_class_mask(uint32_t lcore_id, uint32_t set, uint32_t val)
{
	cat_set_class_mask(lcore_id, set, val);
	lcore_cfg[lcore_id].cache_set = set;
	uint32_t id = -1;
	while(prox_core_next(&id, 0) == 0) {
		if ((lcore_cfg[id].cache_set == set) && (rte_lcore_to_socket_id(id) == rte_lcore_to_socket_id(lcore_id))) {
			plog_info("Updating mask for core %d to %d\n", id, set);
			stats_update_cache_mask(id, val);
		}
	}
}

void cmd_set_cache_class(uint32_t lcore_id, uint32_t set)
{
	uint64_t tmp_rmid = 0;
	uint32_t val = 0;
	cqm_assoc_read(lcore_id, &tmp_rmid);
	cqm_assoc(lcore_id, (tmp_rmid & 0xffffffff) | ((set * 1L) << 32));
	cat_get_class_mask(lcore_id, set, &val);
	stats_update_cache_mask(lcore_id, val);
}

void cmd_cache_reset(void)
{
	uint8_t sockets[MAX_SOCKETS] = {0};
	uint8_t cores[MAX_SOCKETS] = {0};
	uint32_t mask = (1 << cat_get_num_ways()) - 1;
	uint32_t lcore_id = -1, socket_id;
	while(prox_core_next(&lcore_id, 0) == 0) {
		cqm_assoc(lcore_id, 0);
		socket_id = rte_lcore_to_socket_id(lcore_id);
		if (socket_id < MAX_SOCKETS) {
			sockets[socket_id] = 1;
			cores[socket_id] = lcore_id;
		}
		stats_update_cache_mask(lcore_id, mask);
		plog_info("Setting core %d to cache mask %x\n", lcore_id, mask);
		lcore_cfg[lcore_id].cache_set = 0;
	}
	for (uint32_t s = 0; s < MAX_SOCKETS; s++) {
		if (sockets[s])
			cat_reset_cache(cores[s]);
	}
	stats_lcore_assoc_rmid();
}

int bypass_task(uint32_t lcore_id, uint32_t task_id)
{
	struct lcore_cfg *lconf = &lcore_cfg[lcore_id];
	struct task_args *targ, *starg, *dtarg;
	struct rte_ring *ring = NULL;

	if (task_id >= lconf->n_tasks_all)
		return -1;

	targ = &lconf->targs[task_id];
	if (targ->nb_txrings == 1) {
		plog_info("Task has %d receive and 1 transmmit ring and can be bypassed, %d precedent tasks\n", targ->nb_rxrings, targ->n_prev_tasks);
		// Find source task
		for (unsigned int i = 0; i < targ->n_prev_tasks; i++) {
			starg = targ->prev_tasks[i];
			for (unsigned int j = 0; j < starg->nb_txrings; j++) {
				for (unsigned int k = 0; k < targ->nb_rxrings; k++) {
					if (starg->tx_rings[j] == targ->rx_rings[k]) {
						plog_info("bypassing ring %p and connecting it to %p\n", starg->tx_rings[j], targ->tx_rings[0]);
						starg->tx_rings[j] = targ->tx_rings[0];
						struct task_base *tbase = starg->tbase;
						tbase->tx_params_sw.tx_rings[j] = starg->tx_rings[j];
					}
				}
			}
		}
	} else {
		plog_info("Task has %d receive and %d transmit ring and cannot be bypassed\n", targ->nb_rxrings, targ->nb_txrings);
		return -1;
	}

	return 0;
}

int reconnect_task(uint32_t lcore_id, uint32_t task_id)
{
	struct lcore_cfg *lconf = &lcore_cfg[lcore_id];
	struct task_args *targ, *starg, *dtarg = NULL;
	struct rte_ring *ring = NULL;

	if (task_id >= lconf->n_tasks_all)
		return -1;

	targ = &lconf->targs[task_id];
	if (targ->nb_txrings == 1) {
		// Find source task
		for (unsigned int i = 0; i < targ->n_prev_tasks; i++) {
			starg = targ->prev_tasks[i];
			for (unsigned int j = 0; j < starg->nb_txrings; j++) {
				if (starg->tx_rings[j] == targ->tx_rings[0]) {
					if (targ->n_prev_tasks == targ->nb_rxrings) {
						starg->tx_rings[j] = targ->rx_rings[i];
						struct task_base *tbase = starg->tbase;
						tbase->tx_params_sw.tx_rings[j] = starg->tx_rings[j];
						plog_info("Task has %d receive and 1 transmmit ring and can be reconnected, %d precedent tasks\n", targ->nb_rxrings, targ->n_prev_tasks);
					} else if (targ->nb_rxrings == 1) {
						starg->tx_rings[j] = targ->rx_rings[0];
						struct task_base *tbase = starg->tbase;
						tbase->tx_params_sw.tx_rings[j] = starg->tx_rings[j];
						plog_info("Task has %d receive and 1 transmmit ring and ring %p can be reconnected, %d precedent tasks\n", targ->nb_rxrings, starg->tx_rings[j], targ->n_prev_tasks);
					} else {
						plog_err("Unexpected configuration: %d precedent tasks, %d rx rings\n", targ->n_prev_tasks, targ->nb_rxrings);
					}
				}
			}
		}
	} else {
		plog_info("Task has %d receive and %d transmit ring and cannot be bypassed\n", targ->nb_rxrings, targ->nb_txrings);
		return -1;
	}

	return 0;
}