vitalif
/
f-stack
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
f-stack/dpdk/lib/librte_pipeline/rte_pipeline.c

1650 lines
38 KiB
C
Raw Blame History

/*-
* BSD LICENSE
*
* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h>
#include <stdio.h>
#include <rte_common.h>
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_cycles.h>
#include <rte_prefetch.h>
#include <rte_branch_prediction.h>
#include <rte_mbuf.h>
#include <rte_malloc.h>
#include <rte_string_fns.h>
#include "rte_pipeline.h"
#define RTE_TABLE_INVALID UINT32_MAX
#ifdef RTE_PIPELINE_STATS_COLLECT
#define RTE_PIPELINE_STATS_AH_DROP_WRITE(p, mask) \
({ (p)->n_pkts_ah_drop = __builtin_popcountll(mask); })
#define RTE_PIPELINE_STATS_AH_DROP_READ(p, counter) \
({ (counter) += (p)->n_pkts_ah_drop; (p)->n_pkts_ah_drop = 0; })
#define RTE_PIPELINE_STATS_TABLE_DROP0(p) \
({ (p)->pkts_drop_mask = (p)->action_mask0[RTE_PIPELINE_ACTION_DROP]; })
#define RTE_PIPELINE_STATS_TABLE_DROP1(p, counter) \
({ \
uint64_t mask = (p)->action_mask0[RTE_PIPELINE_ACTION_DROP]; \
mask ^= (p)->pkts_drop_mask; \
(counter) += __builtin_popcountll(mask); \
})
#else
#define RTE_PIPELINE_STATS_AH_DROP_WRITE(p, mask)
#define RTE_PIPELINE_STATS_AH_DROP_READ(p, counter)
#define RTE_PIPELINE_STATS_TABLE_DROP0(p)
#define RTE_PIPELINE_STATS_TABLE_DROP1(p, counter)
#endif
struct rte_port_in {
/* Input parameters */
struct rte_port_in_ops ops;
rte_pipeline_port_in_action_handler f_action;
void *arg_ah;
uint32_t burst_size;
/* The table to which this port is connected */
uint32_t table_id;
/* Handle to low-level port */
void *h_port;
/* List of enabled ports */
struct rte_port_in *next;
/* Statistics */
uint64_t n_pkts_dropped_by_ah;
};
struct rte_port_out {
/* Input parameters */
struct rte_port_out_ops ops;
rte_pipeline_port_out_action_handler f_action;
void *arg_ah;
/* Handle to low-level port */
void *h_port;
/* Statistics */
uint64_t n_pkts_dropped_by_ah;
};
struct rte_table {
/* Input parameters */
struct rte_table_ops ops;
rte_pipeline_table_action_handler_hit f_action_hit;
rte_pipeline_table_action_handler_miss f_action_miss;
void *arg_ah;
struct rte_pipeline_table_entry *default_entry;
uint32_t entry_size;
uint32_t table_next_id;
uint32_t table_next_id_valid;
/* Handle to the low-level table object */
void *h_table;
/* Statistics */
uint64_t n_pkts_dropped_by_lkp_hit_ah;
uint64_t n_pkts_dropped_by_lkp_miss_ah;
uint64_t n_pkts_dropped_lkp_hit;
uint64_t n_pkts_dropped_lkp_miss;
};
#define RTE_PIPELINE_MAX_NAME_SZ 124
struct rte_pipeline {
/* Input parameters */
char name[RTE_PIPELINE_MAX_NAME_SZ];
int socket_id;
uint32_t offset_port_id;
/* Internal tables */
struct rte_port_in ports_in[RTE_PIPELINE_PORT_IN_MAX];
struct rte_port_out ports_out[RTE_PIPELINE_PORT_OUT_MAX];
struct rte_table tables[RTE_PIPELINE_TABLE_MAX];
/* Occupancy of internal tables */
uint32_t num_ports_in;
uint32_t num_ports_out;
uint32_t num_tables;
/* List of enabled ports */
uint64_t enabled_port_in_mask;
struct rte_port_in *port_in_next;
/* Pipeline run structures */
struct rte_mbuf *pkts[RTE_PORT_IN_BURST_SIZE_MAX];
struct rte_pipeline_table_entry *entries[RTE_PORT_IN_BURST_SIZE_MAX];
uint64_t action_mask0[RTE_PIPELINE_ACTIONS];
uint64_t action_mask1[RTE_PIPELINE_ACTIONS];
uint64_t pkts_mask;
uint64_t n_pkts_ah_drop;
uint64_t pkts_drop_mask;
} __rte_cache_aligned;
static inline uint32_t
rte_mask_get_next(uint64_t mask, uint32_t pos)
{
uint64_t mask_rot = (mask << ((63 - pos) & 0x3F)) |
(mask >> ((pos + 1) & 0x3F));
return (__builtin_ctzll(mask_rot) - (63 - pos)) & 0x3F;
}
static inline uint32_t
rte_mask_get_prev(uint64_t mask, uint32_t pos)
{
uint64_t mask_rot = (mask >> (pos & 0x3F)) |
(mask << ((64 - pos) & 0x3F));
return ((63 - __builtin_clzll(mask_rot)) + pos) & 0x3F;
}
static void
rte_pipeline_table_free(struct rte_table *table);
static void
rte_pipeline_port_in_free(struct rte_port_in *port);
static void
rte_pipeline_port_out_free(struct rte_port_out *port);
/*
* Pipeline
*
*/
static int
rte_pipeline_check_params(struct rte_pipeline_params *params)
{
if (params == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: Incorrect value for parameter params\n", __func__);
return -EINVAL;
}
/* name */
if (params->name == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: Incorrect value for parameter name\n", __func__);
return -EINVAL;
}
/* socket */
if ((params->socket_id < 0) ||
(params->socket_id >= RTE_MAX_NUMA_NODES)) {
RTE_LOG(ERR, PIPELINE,
"%s: Incorrect value for parameter socket_id\n",
__func__);
return -EINVAL;
}
return 0;
}
struct rte_pipeline *
rte_pipeline_create(struct rte_pipeline_params *params)
{
struct rte_pipeline *p;
int status;
/* Check input parameters */
status = rte_pipeline_check_params(params);
if (status != 0) {
RTE_LOG(ERR, PIPELINE,
"%s: Pipeline params check failed (%d)\n",
__func__, status);
return NULL;
}
/* Allocate memory for the pipeline on requested socket */
p = rte_zmalloc_socket("PIPELINE", sizeof(struct rte_pipeline),
RTE_CACHE_LINE_SIZE, params->socket_id);
if (p == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: Pipeline memory allocation failed\n", __func__);
return NULL;
}
/* Save input parameters */
snprintf(p->name, RTE_PIPELINE_MAX_NAME_SZ, "%s", params->name);
p->socket_id = params->socket_id;
p->offset_port_id = params->offset_port_id;
/* Initialize pipeline internal data structure */
p->num_ports_in = 0;
p->num_ports_out = 0;
p->num_tables = 0;
p->enabled_port_in_mask = 0;
p->port_in_next = NULL;
p->pkts_mask = 0;
p->n_pkts_ah_drop = 0;
return p;
}
int
rte_pipeline_free(struct rte_pipeline *p)
{
uint32_t i;
/* Check input parameters */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: rte_pipeline parameter is NULL\n", __func__);
return -EINVAL;
}
/* Free input ports */
for (i = 0; i < p->num_ports_in; i++) {
struct rte_port_in *port = &p->ports_in[i];
rte_pipeline_port_in_free(port);
}
/* Free tables */
for (i = 0; i < p->num_tables; i++) {
struct rte_table *table = &p->tables[i];
rte_pipeline_table_free(table);
}
/* Free output ports */
for (i = 0; i < p->num_ports_out; i++) {
struct rte_port_out *port = &p->ports_out[i];
rte_pipeline_port_out_free(port);
}
/* Free pipeline memory */
rte_free(p);
return 0;
}
/*
* Table
*
*/
static int
rte_table_check_params(struct rte_pipeline *p,
struct rte_pipeline_table_params *params,
uint32_t *table_id)
{
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter is NULL\n",
__func__);
return -EINVAL;
}
if (params == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params parameter is NULL\n",
__func__);
return -EINVAL;
}
if (table_id == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: table_id parameter is NULL\n",
__func__);
return -EINVAL;
}
/* ops */
if (params->ops == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params->ops is NULL\n",
__func__);
return -EINVAL;
}
if (params->ops->f_create == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_create function pointer is NULL\n", __func__);
return -EINVAL;
}
if (params->ops->f_lookup == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_lookup function pointer is NULL\n", __func__);
return -EINVAL;
}
/* De we have room for one more table? */
if (p->num_tables == RTE_PIPELINE_TABLE_MAX) {
RTE_LOG(ERR, PIPELINE,
"%s: Incorrect value for num_tables parameter\n",
__func__);
return -EINVAL;
}
return 0;
}
int
rte_pipeline_table_create(struct rte_pipeline *p,
struct rte_pipeline_table_params *params,
uint32_t *table_id)
{
struct rte_table *table;
struct rte_pipeline_table_entry *default_entry;
void *h_table;
uint32_t entry_size, id;
int status;
/* Check input arguments */
status = rte_table_check_params(p, params, table_id);
if (status != 0)
return status;
id = p->num_tables;
table = &p->tables[id];
/* Allocate space for the default table entry */
entry_size = sizeof(struct rte_pipeline_table_entry) +
params->action_data_size;
default_entry = (struct rte_pipeline_table_entry *) rte_zmalloc_socket(
"PIPELINE", entry_size, RTE_CACHE_LINE_SIZE, p->socket_id);
if (default_entry == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: Failed to allocate default entry\n", __func__);
return -EINVAL;
}
/* Create the table */
h_table = params->ops->f_create(params->arg_create, p->socket_id,
entry_size);
if (h_table == NULL) {
rte_free(default_entry);
RTE_LOG(ERR, PIPELINE, "%s: Table creation failed\n", __func__);
return -EINVAL;
}
/* Commit current table to the pipeline */
p->num_tables++;
*table_id = id;
/* Save input parameters */
memcpy(&table->ops, params->ops, sizeof(struct rte_table_ops));
table->f_action_hit = params->f_action_hit;
table->f_action_miss = params->f_action_miss;
table->arg_ah = params->arg_ah;
table->entry_size = entry_size;
/* Clear the lookup miss actions (to be set later through API) */
table->default_entry = default_entry;
table->default_entry->action = RTE_PIPELINE_ACTION_DROP;
/* Initialize table internal data structure */
table->h_table = h_table;
table->table_next_id = 0;
table->table_next_id_valid = 0;
return 0;
}
void
rte_pipeline_table_free(struct rte_table *table)
{
if (table->ops.f_free != NULL)
table->ops.f_free(table->h_table);
rte_free(table->default_entry);
}
int
rte_pipeline_table_default_entry_add(struct rte_pipeline *p,
uint32_t table_id,
struct rte_pipeline_table_entry *default_entry,
struct rte_pipeline_table_entry **default_entry_ptr)
{
struct rte_table *table;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter is NULL\n",
__func__);
return -EINVAL;
}
if (default_entry == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: default_entry parameter is NULL\n", __func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if ((default_entry->action == RTE_PIPELINE_ACTION_TABLE) &&
table->table_next_id_valid &&
(default_entry->table_id != table->table_next_id)) {
RTE_LOG(ERR, PIPELINE,
"%s: Tree-like topologies not allowed\n", __func__);
return -EINVAL;
}
/* Set the lookup miss actions */
if ((default_entry->action == RTE_PIPELINE_ACTION_TABLE) &&
(table->table_next_id_valid == 0)) {
table->table_next_id = default_entry->table_id;
table->table_next_id_valid = 1;
}
memcpy(table->default_entry, default_entry, table->entry_size);
*default_entry_ptr = table->default_entry;
return 0;
}
int
rte_pipeline_table_default_entry_delete(struct rte_pipeline *p,
uint32_t table_id,
struct rte_pipeline_table_entry *entry)
{
struct rte_table *table;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: pipeline parameter is NULL\n", __func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
/* Save the current contents of the default entry */
if (entry)
memcpy(entry, table->default_entry, table->entry_size);
/* Clear the lookup miss actions */
memset(table->default_entry, 0, table->entry_size);
table->default_entry->action = RTE_PIPELINE_ACTION_DROP;
return 0;
}
int
rte_pipeline_table_entry_add(struct rte_pipeline *p,
uint32_t table_id,
void *key,
struct rte_pipeline_table_entry *entry,
int *key_found,
struct rte_pipeline_table_entry **entry_ptr)
{
struct rte_table *table;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter is NULL\n",
__func__);
return -EINVAL;
}
if (key == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: key parameter is NULL\n", __func__);
return -EINVAL;
}
if (entry == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: entry parameter is NULL\n",
__func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if (table->ops.f_add == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: f_add function pointer NULL\n",
__func__);
return -EINVAL;
}
if ((entry->action == RTE_PIPELINE_ACTION_TABLE) &&
table->table_next_id_valid &&
(entry->table_id != table->table_next_id)) {
RTE_LOG(ERR, PIPELINE,
"%s: Tree-like topologies not allowed\n", __func__);
return -EINVAL;
}
/* Add entry */
if ((entry->action == RTE_PIPELINE_ACTION_TABLE) &&
(table->table_next_id_valid == 0)) {
table->table_next_id = entry->table_id;
table->table_next_id_valid = 1;
}
return (table->ops.f_add)(table->h_table, key, (void *) entry,
key_found, (void **) entry_ptr);
}
int
rte_pipeline_table_entry_delete(struct rte_pipeline *p,
uint32_t table_id,
void *key,
int *key_found,
struct rte_pipeline_table_entry *entry)
{
struct rte_table *table;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (key == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: key parameter is NULL\n",
__func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if (table->ops.f_delete == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_delete function pointer NULL\n", __func__);
return -EINVAL;
}
return (table->ops.f_delete)(table->h_table, key, key_found, entry);
}
int rte_pipeline_table_entry_add_bulk(struct rte_pipeline *p,
uint32_t table_id,
void **keys,
struct rte_pipeline_table_entry **entries,
uint32_t n_keys,
int *key_found,
struct rte_pipeline_table_entry **entries_ptr)
{
struct rte_table *table;
uint32_t i;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter is NULL\n",
__func__);
return -EINVAL;
}
if (keys == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: keys parameter is NULL\n", __func__);
return -EINVAL;
}
if (entries == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: entries parameter is NULL\n",
__func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if (table->ops.f_add_bulk == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: f_add_bulk function pointer NULL\n",
__func__);
return -EINVAL;
}
for (i = 0; i < n_keys; i++) {
if ((entries[i]->action == RTE_PIPELINE_ACTION_TABLE) &&
table->table_next_id_valid &&
(entries[i]->table_id != table->table_next_id)) {
RTE_LOG(ERR, PIPELINE,
"%s: Tree-like topologies not allowed\n", __func__);
return -EINVAL;
}
}
/* Add entry */
for (i = 0; i < n_keys; i++) {
if ((entries[i]->action == RTE_PIPELINE_ACTION_TABLE) &&
(table->table_next_id_valid == 0)) {
table->table_next_id = entries[i]->table_id;
table->table_next_id_valid = 1;
}
}
return (table->ops.f_add_bulk)(table->h_table, keys, (void **) entries,
n_keys, key_found, (void **) entries_ptr);
}
int rte_pipeline_table_entry_delete_bulk(struct rte_pipeline *p,
uint32_t table_id,
void **keys,
uint32_t n_keys,
int *key_found,
struct rte_pipeline_table_entry **entries)
{
struct rte_table *table;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (keys == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: key parameter is NULL\n",
__func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table_id %d out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if (table->ops.f_delete_bulk == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_delete function pointer NULL\n", __func__);
return -EINVAL;
}
return (table->ops.f_delete_bulk)(table->h_table, keys, n_keys, key_found,
(void **) entries);
}
/*
* Port
*
*/
static int
rte_pipeline_port_in_check_params(struct rte_pipeline *p,
struct rte_pipeline_port_in_params *params,
uint32_t *port_id)
{
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (params == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params parameter NULL\n", __func__);
return -EINVAL;
}
if (port_id == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: port_id parameter NULL\n",
__func__);
return -EINVAL;
}
/* ops */
if (params->ops == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params->ops parameter NULL\n",
__func__);
return -EINVAL;
}
if (params->ops->f_create == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_create function pointer NULL\n", __func__);
return -EINVAL;
}
if (params->ops->f_rx == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: f_rx function pointer NULL\n",
__func__);
return -EINVAL;
}
/* burst_size */
if ((params->burst_size == 0) ||
(params->burst_size > RTE_PORT_IN_BURST_SIZE_MAX)) {
RTE_LOG(ERR, PIPELINE, "%s: invalid value for burst_size\n",
__func__);
return -EINVAL;
}
/* Do we have room for one more port? */
if (p->num_ports_in == RTE_PIPELINE_PORT_IN_MAX) {
RTE_LOG(ERR, PIPELINE,
"%s: invalid value for num_ports_in\n", __func__);
return -EINVAL;
}
return 0;
}
static int
rte_pipeline_port_out_check_params(struct rte_pipeline *p,
struct rte_pipeline_port_out_params *params,
uint32_t *port_id)
{
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (params == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params parameter NULL\n", __func__);
return -EINVAL;
}
if (port_id == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: port_id parameter NULL\n",
__func__);
return -EINVAL;
}
/* ops */
if (params->ops == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: params->ops parameter NULL\n",
__func__);
return -EINVAL;
}
if (params->ops->f_create == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_create function pointer NULL\n", __func__);
return -EINVAL;
}
if (params->ops->f_tx == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_tx function pointer NULL\n", __func__);
return -EINVAL;
}
if (params->ops->f_tx_bulk == NULL) {
RTE_LOG(ERR, PIPELINE,
"%s: f_tx_bulk function pointer NULL\n", __func__);
return -EINVAL;
}
/* Do we have room for one more port? */
if (p->num_ports_out == RTE_PIPELINE_PORT_OUT_MAX) {
RTE_LOG(ERR, PIPELINE,
"%s: invalid value for num_ports_out\n", __func__);
return -EINVAL;
}
return 0;
}
int
rte_pipeline_port_in_create(struct rte_pipeline *p,
struct rte_pipeline_port_in_params *params,
uint32_t *port_id)
{
struct rte_port_in *port;
void *h_port;
uint32_t id;
int status;
/* Check input arguments */
status = rte_pipeline_port_in_check_params(p, params, port_id);
if (status != 0)
return status;
id = p->num_ports_in;
port = &p->ports_in[id];
/* Create the port */
h_port = params->ops->f_create(params->arg_create, p->socket_id);
if (h_port == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: Port creation failed\n", __func__);
return -EINVAL;
}
/* Commit current table to the pipeline */
p->num_ports_in++;
*port_id = id;
/* Save input parameters */
memcpy(&port->ops, params->ops, sizeof(struct rte_port_in_ops));
port->f_action = params->f_action;
port->arg_ah = params->arg_ah;
port->burst_size = params->burst_size;
/* Initialize port internal data structure */
port->table_id = RTE_TABLE_INVALID;
port->h_port = h_port;
port->next = NULL;
return 0;
}
void
rte_pipeline_port_in_free(struct rte_port_in *port)
{
if (port->ops.f_free != NULL)
port->ops.f_free(port->h_port);
}
int
rte_pipeline_port_out_create(struct rte_pipeline *p,
struct rte_pipeline_port_out_params *params,
uint32_t *port_id)
{
struct rte_port_out *port;
void *h_port;
uint32_t id;
int status;
/* Check input arguments */
status = rte_pipeline_port_out_check_params(p, params, port_id);
if (status != 0)
return status;
id = p->num_ports_out;
port = &p->ports_out[id];
/* Create the port */
h_port = params->ops->f_create(params->arg_create, p->socket_id);
if (h_port == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: Port creation failed\n", __func__);
return -EINVAL;
}
/* Commit current table to the pipeline */
p->num_ports_out++;
*port_id = id;
/* Save input parameters */
memcpy(&port->ops, params->ops, sizeof(struct rte_port_out_ops));
port->f_action = params->f_action;
port->arg_ah = params->arg_ah;
/* Initialize port internal data structure */
port->h_port = h_port;
return 0;
}
void
rte_pipeline_port_out_free(struct rte_port_out *port)
{
if (port->ops.f_free != NULL)
port->ops.f_free(port->h_port);
}
int
rte_pipeline_port_in_connect_to_table(struct rte_pipeline *p,
uint32_t port_id,
uint32_t table_id)
{
struct rte_port_in *port;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (port_id >= p->num_ports_in) {
RTE_LOG(ERR, PIPELINE,
"%s: port IN ID %u is out of range\n",
__func__, port_id);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: Table ID %u is out of range\n",
__func__, table_id);
return -EINVAL;
}
port = &p->ports_in[port_id];
port->table_id = table_id;
return 0;
}
int
rte_pipeline_port_in_enable(struct rte_pipeline *p, uint32_t port_id)
{
struct rte_port_in *port, *port_prev, *port_next;
uint64_t port_mask;
uint32_t port_prev_id, port_next_id;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (port_id >= p->num_ports_in) {
RTE_LOG(ERR, PIPELINE,
"%s: port IN ID %u is out of range\n",
__func__, port_id);
return -EINVAL;
}
port = &p->ports_in[port_id];
/* Return if current input port is already enabled */
port_mask = 1LLU << port_id;
if (p->enabled_port_in_mask & port_mask)
return 0;
p->enabled_port_in_mask |= port_mask;
/* Add current input port to the pipeline chain of enabled ports */
port_prev_id = rte_mask_get_prev(p->enabled_port_in_mask, port_id);
port_next_id = rte_mask_get_next(p->enabled_port_in_mask, port_id);
port_prev = &p->ports_in[port_prev_id];
port_next = &p->ports_in[port_next_id];
port_prev->next = port;
port->next = port_next;
/* Check if list of enabled ports was previously empty */
if (p->enabled_port_in_mask == port_mask)
p->port_in_next = port;
return 0;
}
int
rte_pipeline_port_in_disable(struct rte_pipeline *p, uint32_t port_id)
{
struct rte_port_in *port, *port_prev, *port_next;
uint64_t port_mask;
uint32_t port_prev_id, port_next_id;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (port_id >= p->num_ports_in) {
RTE_LOG(ERR, PIPELINE, "%s: port IN ID %u is out of range\n",
__func__, port_id);
return -EINVAL;
}
port = &p->ports_in[port_id];
/* Return if current input port is already disabled */
port_mask = 1LLU << port_id;
if ((p->enabled_port_in_mask & port_mask) == 0)
return 0;
p->enabled_port_in_mask &= ~port_mask;
/* Return if no other enabled ports */
if (p->enabled_port_in_mask == 0) {
p->port_in_next = NULL;
return 0;
}
/* Add current input port to the pipeline chain of enabled ports */
port_prev_id = rte_mask_get_prev(p->enabled_port_in_mask, port_id);
port_next_id = rte_mask_get_next(p->enabled_port_in_mask, port_id);
port_prev = &p->ports_in[port_prev_id];
port_next = &p->ports_in[port_next_id];
port_prev->next = port_next;
/* Check if the port which has just been disabled is next to serve */
if (port == p->port_in_next)
p->port_in_next = port_next;
return 0;
}
/*
* Pipeline run-time
*
*/
int
rte_pipeline_check(struct rte_pipeline *p)
{
uint32_t port_in_id;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
/* Check that pipeline has at least one input port, one table and one
output port */
if (p->num_ports_in == 0) {
RTE_LOG(ERR, PIPELINE, "%s: must have at least 1 input port\n",
__func__);
return -EINVAL;
}
if (p->num_tables == 0) {
RTE_LOG(ERR, PIPELINE, "%s: must have at least 1 table\n",
__func__);
return -EINVAL;
}
if (p->num_ports_out == 0) {
RTE_LOG(ERR, PIPELINE, "%s: must have at least 1 output port\n",
__func__);
return -EINVAL;
}
/* Check that all input ports are connected */
for (port_in_id = 0; port_in_id < p->num_ports_in; port_in_id++) {
struct rte_port_in *port_in = &p->ports_in[port_in_id];
if (port_in->table_id == RTE_TABLE_INVALID) {
RTE_LOG(ERR, PIPELINE,
"%s: Port IN ID %u is not connected\n",
__func__, port_in_id);
return -EINVAL;
}
}
return 0;
}
static inline void
rte_pipeline_compute_masks(struct rte_pipeline *p, uint64_t pkts_mask)
{
p->action_mask1[RTE_PIPELINE_ACTION_DROP] = 0;
p->action_mask1[RTE_PIPELINE_ACTION_PORT] = 0;
p->action_mask1[RTE_PIPELINE_ACTION_PORT_META] = 0;
p->action_mask1[RTE_PIPELINE_ACTION_TABLE] = 0;
if ((pkts_mask & (pkts_mask + 1)) == 0) {
uint64_t n_pkts = __builtin_popcountll(pkts_mask);
uint32_t i;
for (i = 0; i < n_pkts; i++) {
uint64_t pkt_mask = 1LLU << i;
uint32_t pos = p->entries[i]->action;
p->action_mask1[pos] |= pkt_mask;
}
} else {
uint32_t i;
for (i = 0; i < RTE_PORT_IN_BURST_SIZE_MAX; i++) {
uint64_t pkt_mask = 1LLU << i;
uint32_t pos;
if ((pkt_mask & pkts_mask) == 0)
continue;
pos = p->entries[i]->action;
p->action_mask1[pos] |= pkt_mask;
}
}
}
static inline void
rte_pipeline_action_handler_port_bulk(struct rte_pipeline *p,
uint64_t pkts_mask, uint32_t port_id)
{
struct rte_port_out *port_out = &p->ports_out[port_id];
p->pkts_mask = pkts_mask;
/* Output port user actions */
if (port_out->f_action != NULL) {
port_out->f_action(p, p->pkts, pkts_mask, port_out->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_out->n_pkts_dropped_by_ah);
}
/* Output port TX */
if (p->pkts_mask != 0)
port_out->ops.f_tx_bulk(port_out->h_port,
p->pkts,
p->pkts_mask);
}
static inline void
rte_pipeline_action_handler_port(struct rte_pipeline *p, uint64_t pkts_mask)
{
p->pkts_mask = pkts_mask;
if ((pkts_mask & (pkts_mask + 1)) == 0) {
uint64_t n_pkts = __builtin_popcountll(pkts_mask);
uint32_t i;
for (i = 0; i < n_pkts; i++) {
struct rte_mbuf *pkt = p->pkts[i];
uint32_t port_out_id = p->entries[i]->port_id;
struct rte_port_out *port_out =
&p->ports_out[port_out_id];
/* Output port user actions */
if (port_out->f_action == NULL) /* Output port TX */
port_out->ops.f_tx(port_out->h_port, pkt);
else {
uint64_t pkt_mask = 1LLU << i;
port_out->f_action(p,
p->pkts,
pkt_mask,
port_out->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_out->n_pkts_dropped_by_ah);
/* Output port TX */
if (pkt_mask & p->pkts_mask)
port_out->ops.f_tx(port_out->h_port,
pkt);
}
}
} else {
uint32_t i;
for (i = 0; i < RTE_PORT_IN_BURST_SIZE_MAX; i++) {
uint64_t pkt_mask = 1LLU << i;
struct rte_mbuf *pkt;
struct rte_port_out *port_out;
uint32_t port_out_id;
if ((pkt_mask & pkts_mask) == 0)
continue;
pkt = p->pkts[i];
port_out_id = p->entries[i]->port_id;
port_out = &p->ports_out[port_out_id];
/* Output port user actions */
if (port_out->f_action == NULL) /* Output port TX */
port_out->ops.f_tx(port_out->h_port, pkt);
else {
port_out->f_action(p,
p->pkts,
pkt_mask,
port_out->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_out->n_pkts_dropped_by_ah);
/* Output port TX */
if (pkt_mask & p->pkts_mask)
port_out->ops.f_tx(port_out->h_port,
pkt);
}
}
}
}
static inline void
rte_pipeline_action_handler_port_meta(struct rte_pipeline *p,
uint64_t pkts_mask)
{
p->pkts_mask = pkts_mask;
if ((pkts_mask & (pkts_mask + 1)) == 0) {
uint64_t n_pkts = __builtin_popcountll(pkts_mask);
uint32_t i;
for (i = 0; i < n_pkts; i++) {
struct rte_mbuf *pkt = p->pkts[i];
uint32_t port_out_id =
RTE_MBUF_METADATA_UINT32(pkt,
p->offset_port_id);
struct rte_port_out *port_out = &p->ports_out[
port_out_id];
/* Output port user actions */
if (port_out->f_action == NULL) /* Output port TX */
port_out->ops.f_tx(port_out->h_port, pkt);
else {
uint64_t pkt_mask = 1LLU << i;
port_out->f_action(p,
p->pkts,
pkt_mask,
port_out->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_out->n_pkts_dropped_by_ah);
/* Output port TX */
if (pkt_mask & p->pkts_mask)
port_out->ops.f_tx(port_out->h_port,
pkt);
}
}
} else {
uint32_t i;
for (i = 0; i < RTE_PORT_IN_BURST_SIZE_MAX; i++) {
uint64_t pkt_mask = 1LLU << i;
struct rte_mbuf *pkt;
struct rte_port_out *port_out;
uint32_t port_out_id;
if ((pkt_mask & pkts_mask) == 0)
continue;
pkt = p->pkts[i];
port_out_id = RTE_MBUF_METADATA_UINT32(pkt,
p->offset_port_id);
port_out = &p->ports_out[port_out_id];
/* Output port user actions */
if (port_out->f_action == NULL) /* Output port TX */
port_out->ops.f_tx(port_out->h_port, pkt);
else {
port_out->f_action(p,
p->pkts,
pkt_mask,
port_out->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_out->n_pkts_dropped_by_ah);
/* Output port TX */
if (pkt_mask & p->pkts_mask)
port_out->ops.f_tx(port_out->h_port,
pkt);
}
}
}
}
static inline void
rte_pipeline_action_handler_drop(struct rte_pipeline *p, uint64_t pkts_mask)
{
if ((pkts_mask & (pkts_mask + 1)) == 0) {
uint64_t n_pkts = __builtin_popcountll(pkts_mask);
uint32_t i;
for (i = 0; i < n_pkts; i++)
rte_pktmbuf_free(p->pkts[i]);
} else {
uint32_t i;
for (i = 0; i < RTE_PORT_IN_BURST_SIZE_MAX; i++) {
uint64_t pkt_mask = 1LLU << i;
if ((pkt_mask & pkts_mask) == 0)
continue;
rte_pktmbuf_free(p->pkts[i]);
}
}
}
int
rte_pipeline_run(struct rte_pipeline *p)
{
struct rte_port_in *port_in = p->port_in_next;
uint32_t n_pkts, table_id;
if (port_in == NULL)
return 0;
/* Input port RX */
n_pkts = port_in->ops.f_rx(port_in->h_port, p->pkts,
port_in->burst_size);
if (n_pkts == 0) {
p->port_in_next = port_in->next;
return 0;
}
p->pkts_mask = RTE_LEN2MASK(n_pkts, uint64_t);
p->action_mask0[RTE_PIPELINE_ACTION_DROP] = 0;
p->action_mask0[RTE_PIPELINE_ACTION_PORT] = 0;
p->action_mask0[RTE_PIPELINE_ACTION_PORT_META] = 0;
p->action_mask0[RTE_PIPELINE_ACTION_TABLE] = 0;
/* Input port user actions */
if (port_in->f_action != NULL) {
port_in->f_action(p, p->pkts, n_pkts, port_in->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
port_in->n_pkts_dropped_by_ah);
}
/* Table */
for (table_id = port_in->table_id; p->pkts_mask != 0; ) {
struct rte_table *table;
uint64_t lookup_hit_mask, lookup_miss_mask;
/* Lookup */
table = &p->tables[table_id];
table->ops.f_lookup(table->h_table, p->pkts, p->pkts_mask,
&lookup_hit_mask, (void **) p->entries);
lookup_miss_mask = p->pkts_mask & (~lookup_hit_mask);
/* Lookup miss */
if (lookup_miss_mask != 0) {
struct rte_pipeline_table_entry *default_entry =
table->default_entry;
p->pkts_mask = lookup_miss_mask;
/* Table user actions */
if (table->f_action_miss != NULL) {
table->f_action_miss(p,
p->pkts,
lookup_miss_mask,
default_entry,
table->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
table->n_pkts_dropped_by_lkp_miss_ah);
}
/* Table reserved actions */
if ((default_entry->action == RTE_PIPELINE_ACTION_PORT) &&
(p->pkts_mask != 0))
rte_pipeline_action_handler_port_bulk(p,
p->pkts_mask,
default_entry->port_id);
else {
uint32_t pos = default_entry->action;
RTE_PIPELINE_STATS_TABLE_DROP0(p);
p->action_mask0[pos] |= p->pkts_mask;
RTE_PIPELINE_STATS_TABLE_DROP1(p,
table->n_pkts_dropped_lkp_miss);
}
}
/* Lookup hit */
if (lookup_hit_mask != 0) {
p->pkts_mask = lookup_hit_mask;
/* Table user actions */
if (table->f_action_hit != NULL) {
table->f_action_hit(p,
p->pkts,
lookup_hit_mask,
p->entries,
table->arg_ah);
RTE_PIPELINE_STATS_AH_DROP_READ(p,
table->n_pkts_dropped_by_lkp_hit_ah);
}
/* Table reserved actions */
RTE_PIPELINE_STATS_TABLE_DROP0(p);
rte_pipeline_compute_masks(p, p->pkts_mask);
p->action_mask0[RTE_PIPELINE_ACTION_DROP] |=
p->action_mask1[
RTE_PIPELINE_ACTION_DROP];
p->action_mask0[RTE_PIPELINE_ACTION_PORT] |=
p->action_mask1[
RTE_PIPELINE_ACTION_PORT];
p->action_mask0[RTE_PIPELINE_ACTION_PORT_META] |=
p->action_mask1[
RTE_PIPELINE_ACTION_PORT_META];
p->action_mask0[RTE_PIPELINE_ACTION_TABLE] |=
p->action_mask1[
RTE_PIPELINE_ACTION_TABLE];
RTE_PIPELINE_STATS_TABLE_DROP1(p,
table->n_pkts_dropped_lkp_hit);
}
/* Prepare for next iteration */
p->pkts_mask = p->action_mask0[RTE_PIPELINE_ACTION_TABLE];
table_id = table->table_next_id;
p->action_mask0[RTE_PIPELINE_ACTION_TABLE] = 0;
}
/* Table reserved action PORT */
rte_pipeline_action_handler_port(p,
p->action_mask0[RTE_PIPELINE_ACTION_PORT]);
/* Table reserved action PORT META */
rte_pipeline_action_handler_port_meta(p,
p->action_mask0[RTE_PIPELINE_ACTION_PORT_META]);
/* Table reserved action DROP */
rte_pipeline_action_handler_drop(p,
p->action_mask0[RTE_PIPELINE_ACTION_DROP]);
/* Pick candidate for next port IN to serve */
p->port_in_next = port_in->next;
return (int) n_pkts;
}
int
rte_pipeline_flush(struct rte_pipeline *p)
{
uint32_t port_id;
/* Check input arguments */
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
for (port_id = 0; port_id < p->num_ports_out; port_id++) {
struct rte_port_out *port = &p->ports_out[port_id];
if (port->ops.f_flush != NULL)
port->ops.f_flush(port->h_port);
}
return 0;
}
int
rte_pipeline_port_out_packet_insert(struct rte_pipeline *p,
uint32_t port_id, struct rte_mbuf *pkt)
{
struct rte_port_out *port_out = &p->ports_out[port_id];
port_out->ops.f_tx(port_out->h_port, pkt); /* Output port TX */
return 0;
}
int rte_pipeline_ah_packet_hijack(struct rte_pipeline *p,
uint64_t pkts_mask)
{
pkts_mask &= p->pkts_mask;
p->pkts_mask &= ~pkts_mask;
return 0;
}
int rte_pipeline_ah_packet_drop(struct rte_pipeline *p,
uint64_t pkts_mask)
{
pkts_mask &= p->pkts_mask;
p->pkts_mask &= ~pkts_mask;
p->action_mask0[RTE_PIPELINE_ACTION_DROP] |= pkts_mask;
RTE_PIPELINE_STATS_AH_DROP_WRITE(p, pkts_mask);
return 0;
}
int rte_pipeline_port_in_stats_read(struct rte_pipeline *p, uint32_t port_id,
struct rte_pipeline_port_in_stats *stats, int clear)
{
struct rte_port_in *port;
int retval;
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (port_id >= p->num_ports_in) {
RTE_LOG(ERR, PIPELINE,
"%s: port IN ID %u is out of range\n",
__func__, port_id);
return -EINVAL;
}
port = &p->ports_in[port_id];
if (port->ops.f_stats != NULL) {
retval = port->ops.f_stats(port->h_port, &stats->stats, clear);
if (retval)
return retval;
} else if (stats != NULL)
memset(&stats->stats, 0, sizeof(stats->stats));
if (stats != NULL)
stats->n_pkts_dropped_by_ah = port->n_pkts_dropped_by_ah;
if (clear != 0)
port->n_pkts_dropped_by_ah = 0;
return 0;
}
int rte_pipeline_port_out_stats_read(struct rte_pipeline *p, uint32_t port_id,
struct rte_pipeline_port_out_stats *stats, int clear)
{
struct rte_port_out *port;
int retval;
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n", __func__);
return -EINVAL;
}
if (port_id >= p->num_ports_out) {
RTE_LOG(ERR, PIPELINE,
"%s: port OUT ID %u is out of range\n", __func__, port_id);
return -EINVAL;
}
port = &p->ports_out[port_id];
if (port->ops.f_stats != NULL) {
retval = port->ops.f_stats(port->h_port, &stats->stats, clear);
if (retval != 0)
return retval;
} else if (stats != NULL)
memset(&stats->stats, 0, sizeof(stats->stats));
if (stats != NULL)
stats->n_pkts_dropped_by_ah = port->n_pkts_dropped_by_ah;
if (clear != 0)
port->n_pkts_dropped_by_ah = 0;
return 0;
}
int rte_pipeline_table_stats_read(struct rte_pipeline *p, uint32_t table_id,
struct rte_pipeline_table_stats *stats, int clear)
{
struct rte_table *table;
int retval;
if (p == NULL) {
RTE_LOG(ERR, PIPELINE, "%s: pipeline parameter NULL\n",
__func__);
return -EINVAL;
}
if (table_id >= p->num_tables) {
RTE_LOG(ERR, PIPELINE,
"%s: table %u is out of range\n", __func__, table_id);
return -EINVAL;
}
table = &p->tables[table_id];
if (table->ops.f_stats != NULL) {
retval = table->ops.f_stats(table->h_table, &stats->stats, clear);
if (retval != 0)
return retval;
} else if (stats != NULL)
memset(&stats->stats, 0, sizeof(stats->stats));
if (stats != NULL) {
stats->n_pkts_dropped_by_lkp_hit_ah =
table->n_pkts_dropped_by_lkp_hit_ah;
stats->n_pkts_dropped_by_lkp_miss_ah =
table->n_pkts_dropped_by_lkp_miss_ah;
stats->n_pkts_dropped_lkp_hit = table->n_pkts_dropped_lkp_hit;
stats->n_pkts_dropped_lkp_miss = table->n_pkts_dropped_lkp_miss;
}
if (clear != 0) {
table->n_pkts_dropped_by_lkp_hit_ah = 0;
table->n_pkts_dropped_by_lkp_miss_ah = 0;
table->n_pkts_dropped_lkp_hit = 0;
table->n_pkts_dropped_lkp_miss = 0;
}
return 0;
}
Reference in New Issue View Git Blame Copy Permalink