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rte_bbdev.c
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Intel Corporation
*/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <rte_common.h>
#include <rte_errno.h>
#include <rte_log.h>
#include <rte_eal.h>
#include <rte_malloc.h>
#include <rte_mempool.h>
#include <rte_memzone.h>
#include <rte_lcore.h>
#include <rte_spinlock.h>
#include <rte_interrupts.h>
#include "rte_bbdev_op.h"
#include "rte_bbdev.h"
#include "rte_bbdev_pmd.h"
#define DEV_NAME "BBDEV"
/* Number of supported operation types in *rte_bbdev_op_type*. */
#define BBDEV_OP_TYPE_COUNT 7
/* BBDev library logging ID */
RTE_LOG_REGISTER_DEFAULT(bbdev_logtype, NOTICE);
#define RTE_LOGTYPE_BBDEV bbdev_logtype
/* Helper macro for logging */
#define rte_bbdev_log(level, ...) \
RTE_LOG_LINE(level, BBDEV, "" __VA_ARGS__)
#define rte_bbdev_log_debug(fmt, ...) \
rte_bbdev_log(DEBUG, RTE_STR(__LINE__) ":%s() " fmt, __func__, \
##__VA_ARGS__)
/* Helper macro to check dev_id is valid */
#define VALID_DEV_OR_RET_ERR(dev, dev_id) do { \
if (dev == NULL) { \
rte_bbdev_log(ERR, "device %u is invalid", dev_id); \
return -ENODEV; \
} \
} while (0)
/* Helper macro to check dev_ops is valid */
#define VALID_DEV_OPS_OR_RET_ERR(dev, dev_id) do { \
if (dev->dev_ops == NULL) { \
rte_bbdev_log(ERR, "NULL dev_ops structure in device %u", \
dev_id); \
return -ENODEV; \
} \
} while (0)
/* Helper macro to check that driver implements required function pointer */
#define VALID_FUNC_OR_RET_ERR(func, dev_id) do { \
if (func == NULL) { \
rte_bbdev_log(ERR, "device %u does not support %s", \
dev_id, #func); \
return -ENOTSUP; \
} \
} while (0)
/* Helper macro to check that queue is valid */
#define VALID_QUEUE_OR_RET_ERR(queue_id, dev) do { \
if (queue_id >= dev->data->num_queues) { \
rte_bbdev_log(ERR, "Invalid queue_id %u for device %u", \
queue_id, dev->data->dev_id); \
return -ERANGE; \
} \
} while (0)
/* List of callback functions registered by an application */
struct rte_bbdev_callback {
TAILQ_ENTRY(rte_bbdev_callback) next; /* Callbacks list */
rte_bbdev_cb_fn cb_fn; /* Callback address */
void *cb_arg; /* Parameter for callback */
void *ret_param; /* Return parameter */
enum rte_bbdev_event_type event; /* Interrupt event type */
uint32_t active; /* Callback is executing */
};
/* spinlock for bbdev device callbacks */
static rte_spinlock_t rte_bbdev_cb_lock = RTE_SPINLOCK_INITIALIZER;
/*
* Global array of all devices. This is not static because it's used by the
* inline enqueue and dequeue functions
*/
struct rte_bbdev rte_bbdev_devices[RTE_BBDEV_MAX_DEVS];
/* Global array with rte_bbdev_data structures */
static struct rte_bbdev_data *rte_bbdev_data;
/* Memzone name for global bbdev data pool */
static const char *MZ_RTE_BBDEV_DATA = "rte_bbdev_data";
/* Number of currently valid devices */
static uint16_t num_devs;
/* Return pointer to device structure, with validity check */
static struct rte_bbdev *
get_dev(uint16_t dev_id)
{
if (rte_bbdev_is_valid(dev_id))
return &rte_bbdev_devices[dev_id];
return NULL;
}
/* Allocate global data array */
static int
rte_bbdev_data_alloc(void)
{
const unsigned int flags = 0;
const struct rte_memzone *mz;
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
mz = rte_memzone_reserve(MZ_RTE_BBDEV_DATA,
RTE_BBDEV_MAX_DEVS * sizeof(*rte_bbdev_data),
rte_socket_id(), flags);
} else
mz = rte_memzone_lookup(MZ_RTE_BBDEV_DATA);
if (mz == NULL) {
rte_bbdev_log(CRIT,
"Cannot allocate memzone for bbdev port data");
return -ENOMEM;
}
rte_bbdev_data = mz->addr;
if (rte_eal_process_type() == RTE_PROC_PRIMARY)
memset(rte_bbdev_data, 0,
RTE_BBDEV_MAX_DEVS * sizeof(*rte_bbdev_data));
return 0;
}
/*
* Find data allocated for the device or if not found return first unused bbdev
* data. If all structures are in use and none is used by the device return
* NULL.
*/
static struct rte_bbdev_data *
find_bbdev_data(const char *name)
{
uint16_t data_id;
for (data_id = 0; data_id < RTE_BBDEV_MAX_DEVS; ++data_id) {
if (strlen(rte_bbdev_data[data_id].name) == 0) {
memset(&rte_bbdev_data[data_id], 0,
sizeof(struct rte_bbdev_data));
return &rte_bbdev_data[data_id];
} else if (strncmp(rte_bbdev_data[data_id].name, name,
RTE_BBDEV_NAME_MAX_LEN) == 0)
return &rte_bbdev_data[data_id];
}
return NULL;
}
/* Find lowest device id with no attached device */
static uint16_t
find_free_dev_id(void)
{
uint16_t i;
for (i = 0; i < RTE_BBDEV_MAX_DEVS; i++) {
if (rte_bbdev_devices[i].state == RTE_BBDEV_UNUSED)
return i;
}
return RTE_BBDEV_MAX_DEVS;
}
struct rte_bbdev *
rte_bbdev_allocate(const char *name)
{
int ret;
struct rte_bbdev *bbdev;
uint16_t dev_id;
if (name == NULL) {
rte_bbdev_log(ERR, "Invalid null device name");
return NULL;
}
if (rte_bbdev_get_named_dev(name) != NULL) {
rte_bbdev_log(ERR, "Device \"%s\" is already allocated", name);
return NULL;
}
dev_id = find_free_dev_id();
if (dev_id == RTE_BBDEV_MAX_DEVS) {
rte_bbdev_log(ERR, "Reached maximum number of devices");
return NULL;
}
bbdev = &rte_bbdev_devices[dev_id];
if (rte_bbdev_data == NULL) {
ret = rte_bbdev_data_alloc();
if (ret != 0)
return NULL;
}
bbdev->data = find_bbdev_data(name);
if (bbdev->data == NULL) {
rte_bbdev_log(ERR,
"Max BBDevs already allocated in multi-process environment!");
return NULL;
}
rte_atomic_fetch_add_explicit(&bbdev->data->process_cnt, 1, rte_memory_order_relaxed);
bbdev->data->dev_id = dev_id;
bbdev->state = RTE_BBDEV_INITIALIZED;
ret = snprintf(bbdev->data->name, RTE_BBDEV_NAME_MAX_LEN, "%s", name);
if ((ret < 0) || (ret >= RTE_BBDEV_NAME_MAX_LEN)) {
rte_bbdev_log(ERR, "Copying device name \"%s\" failed", name);
return NULL;
}
/* init user callbacks */
TAILQ_INIT(&(bbdev->list_cbs));
num_devs++;
rte_bbdev_log_debug("Initialised device %s (id = %u). Num devices = %u",
name, dev_id, num_devs);
return bbdev;
}
int
rte_bbdev_release(struct rte_bbdev *bbdev)
{
uint16_t dev_id;
struct rte_bbdev_callback *cb, *next;
if (bbdev == NULL) {
rte_bbdev_log(ERR, "NULL bbdev");
return -ENODEV;
}
dev_id = bbdev->data->dev_id;
/* free all callbacks from the device's list */
for (cb = TAILQ_FIRST(&bbdev->list_cbs); cb != NULL; cb = next) {
next = TAILQ_NEXT(cb, next);
TAILQ_REMOVE(&(bbdev->list_cbs), cb, next);
rte_free(cb);
}
/* clear shared BBDev Data if no process is using the device anymore */
if (rte_atomic_fetch_sub_explicit(&bbdev->data->process_cnt, 1,
rte_memory_order_relaxed) - 1 == 0)
memset(bbdev->data, 0, sizeof(*bbdev->data));
memset(bbdev, 0, sizeof(*bbdev));
num_devs--;
bbdev->state = RTE_BBDEV_UNUSED;
rte_bbdev_log_debug(
"Un-initialised device id = %u. Num devices = %u",
dev_id, num_devs);
return 0;
}
struct rte_bbdev *
rte_bbdev_get_named_dev(const char *name)
{
unsigned int i;
if (name == NULL) {
rte_bbdev_log(ERR, "NULL driver name");
return NULL;
}
for (i = 0; i < RTE_BBDEV_MAX_DEVS; i++) {
struct rte_bbdev *dev = get_dev(i);
if (dev && (strncmp(dev->data->name,
name, RTE_BBDEV_NAME_MAX_LEN) == 0))
return dev;
}
return NULL;
}
uint16_t
rte_bbdev_count(void)
{
return num_devs;
}
bool
rte_bbdev_is_valid(uint16_t dev_id)
{
if ((dev_id < RTE_BBDEV_MAX_DEVS) &&
rte_bbdev_devices[dev_id].state == RTE_BBDEV_INITIALIZED)
return true;
return false;
}
uint16_t
rte_bbdev_find_next(uint16_t dev_id)
{
dev_id++;
for (; dev_id < RTE_BBDEV_MAX_DEVS; dev_id++)
if (rte_bbdev_is_valid(dev_id))
break;
return dev_id;
}
int
rte_bbdev_setup_queues(uint16_t dev_id, uint16_t num_queues, int socket_id)
{
unsigned int i;
int ret;
struct rte_bbdev_driver_info dev_info;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (dev->data->started) {
rte_bbdev_log(ERR,
"Device %u cannot be configured when started",
dev_id);
return -EBUSY;
}
/* Get device driver information to get max number of queues */
VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
memset(&dev_info, 0, sizeof(dev_info));
dev->dev_ops->info_get(dev, &dev_info);
if ((num_queues == 0) || (num_queues > dev_info.max_num_queues)) {
rte_bbdev_log(ERR,
"Device %u supports 0 < N <= %u queues, not %u",
dev_id, dev_info.max_num_queues, num_queues);
return -EINVAL;
}
/* If re-configuration, get driver to free existing internal memory */
if (dev->data->queues != NULL) {
VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_release, dev_id);
for (i = 0; i < dev->data->num_queues; i++) {
int ret = dev->dev_ops->queue_release(dev, i);
if (ret < 0) {
rte_bbdev_log(ERR,
"Device %u queue %u release failed",
dev_id, i);
return ret;
}
}
/* Call optional device close */
if (dev->dev_ops->close) {
ret = dev->dev_ops->close(dev);
if (ret < 0) {
rte_bbdev_log(ERR,
"Device %u couldn't be closed",
dev_id);
return ret;
}
}
rte_free(dev->data->queues);
}
/* Allocate queue pointers */
dev->data->queues = rte_calloc_socket(DEV_NAME, num_queues,
sizeof(dev->data->queues[0]), RTE_CACHE_LINE_SIZE,
dev->data->socket_id);
if (dev->data->queues == NULL) {
rte_bbdev_log(ERR,
"calloc of %u queues for device %u on socket %i failed",
num_queues, dev_id, dev->data->socket_id);
return -ENOMEM;
}
dev->data->num_queues = num_queues;
/* Call optional device configuration */
if (dev->dev_ops->setup_queues) {
ret = dev->dev_ops->setup_queues(dev, num_queues, socket_id);
if (ret < 0) {
rte_bbdev_log(ERR,
"Device %u memory configuration failed",
dev_id);
goto error;
}
}
rte_bbdev_log_debug("Device %u set up with %u queues", dev_id,
num_queues);
return 0;
error:
dev->data->num_queues = 0;
rte_free(dev->data->queues);
dev->data->queues = NULL;
return ret;
}
int
rte_bbdev_intr_enable(uint16_t dev_id)
{
int ret;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (dev->data->started) {
rte_bbdev_log(ERR,
"Device %u cannot be configured when started",
dev_id);
return -EBUSY;
}
if (dev->dev_ops->intr_enable) {
ret = dev->dev_ops->intr_enable(dev);
if (ret < 0) {
rte_bbdev_log(ERR,
"Device %u interrupts configuration failed",
dev_id);
return ret;
}
rte_bbdev_log_debug("Enabled interrupts for dev %u", dev_id);
return 0;
}
rte_bbdev_log(ERR, "Device %u doesn't support interrupts", dev_id);
return -ENOTSUP;
}
int
rte_bbdev_queue_configure(uint16_t dev_id, uint16_t queue_id,
const struct rte_bbdev_queue_conf *conf)
{
int ret = 0;
struct rte_bbdev_driver_info dev_info;
struct rte_bbdev *dev = get_dev(dev_id);
const struct rte_bbdev_op_cap *p;
struct rte_bbdev_queue_conf *stored_conf;
const char *op_type_str;
unsigned int max_priority;
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
VALID_QUEUE_OR_RET_ERR(queue_id, dev);
if (dev->data->queues[queue_id].started || dev->data->started) {
rte_bbdev_log(ERR,
"Queue %u of device %u cannot be configured when started",
queue_id, dev_id);
return -EBUSY;
}
VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_release, dev_id);
VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_setup, dev_id);
/* Get device driver information to verify config is valid */
VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
memset(&dev_info, 0, sizeof(dev_info));
dev->dev_ops->info_get(dev, &dev_info);
/* Check configuration is valid */
if (conf != NULL) {
if ((conf->op_type == RTE_BBDEV_OP_NONE) &&
(dev_info.capabilities[0].type ==
RTE_BBDEV_OP_NONE)) {
ret = 1;
} else {
for (p = dev_info.capabilities;
p->type != RTE_BBDEV_OP_NONE; p++) {
if (conf->op_type == p->type) {
ret = 1;
break;
}
}
}
if (ret == 0) {
rte_bbdev_log(ERR, "Invalid operation type");
return -EINVAL;
}
if (conf->queue_size > dev_info.queue_size_lim) {
rte_bbdev_log(ERR,
"Size (%u) of queue %u of device %u must be: <= %u",
conf->queue_size, queue_id, dev_id,
dev_info.queue_size_lim);
return -EINVAL;
}
if (!rte_is_power_of_2(conf->queue_size)) {
rte_bbdev_log(ERR,
"Size (%u) of queue %u of device %u must be a power of 2",
conf->queue_size, queue_id, dev_id);
return -EINVAL;
}
if ((uint8_t)conf->op_type >= RTE_BBDEV_OP_TYPE_SIZE_MAX) {
rte_bbdev_log(ERR,
"Invalid operation type (%u) ", conf->op_type);
return -EINVAL;
}
max_priority = dev_info.queue_priority[conf->op_type];
if (conf->priority > max_priority) {
rte_bbdev_log(ERR,
"Priority (%u) of queue %u of bbdev %u must be <= %u",
conf->priority, queue_id, dev_id, max_priority);
return -EINVAL;
}
}
/* Release existing queue (in case of queue reconfiguration) */
if (dev->data->queues[queue_id].queue_private != NULL) {
ret = dev->dev_ops->queue_release(dev, queue_id);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u queue %u release failed",
dev_id, queue_id);
return ret;
}
}
/* Get driver to setup the queue */
ret = dev->dev_ops->queue_setup(dev, queue_id, (conf != NULL) ?
conf : &dev_info.default_queue_conf);
if (ret < 0) {
/* This may happen when trying different priority levels */
rte_bbdev_log(INFO,
"Device %u queue %u setup failed",
dev_id, queue_id);
return ret;
}
/* Store configuration */
stored_conf = &dev->data->queues[queue_id].conf;
memcpy(stored_conf,
(conf != NULL) ? conf : &dev_info.default_queue_conf,
sizeof(*stored_conf));
op_type_str = rte_bbdev_op_type_str(stored_conf->op_type);
if (op_type_str == NULL)
return -EINVAL;
rte_bbdev_log_debug("Configured dev%uq%u (size=%u, type=%s, prio=%u)",
dev_id, queue_id, stored_conf->queue_size, op_type_str,
stored_conf->priority);
return 0;
}
int
rte_bbdev_start(uint16_t dev_id)
{
int i;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (dev->data->started) {
rte_bbdev_log_debug("Device %u is already started", dev_id);
return 0;
}
if (dev->dev_ops->start) {
int ret = dev->dev_ops->start(dev);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u start failed", dev_id);
return ret;
}
}
/* Store new state */
for (i = 0; i < dev->data->num_queues; i++)
if (!dev->data->queues[i].conf.deferred_start)
dev->data->queues[i].started = true;
dev->data->started = true;
rte_bbdev_log_debug("Started device %u", dev_id);
return 0;
}
int
rte_bbdev_stop(uint16_t dev_id)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (!dev->data->started) {
rte_bbdev_log_debug("Device %u is already stopped", dev_id);
return 0;
}
if (dev->dev_ops->stop)
dev->dev_ops->stop(dev);
dev->data->started = false;
rte_bbdev_log_debug("Stopped device %u", dev_id);
return 0;
}
int
rte_bbdev_close(uint16_t dev_id)
{
int ret;
uint16_t i;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (dev->data->started) {
ret = rte_bbdev_stop(dev_id);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u stop failed", dev_id);
return ret;
}
}
/* Free memory used by queues */
for (i = 0; i < dev->data->num_queues; i++) {
ret = dev->dev_ops->queue_release(dev, i);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u queue %u release failed",
dev_id, i);
return ret;
}
}
rte_free(dev->data->queues);
if (dev->dev_ops->close) {
ret = dev->dev_ops->close(dev);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u close failed", dev_id);
return ret;
}
}
/* Clear configuration */
dev->data->queues = NULL;
dev->data->num_queues = 0;
rte_bbdev_log_debug("Closed device %u", dev_id);
return 0;
}
int
rte_bbdev_queue_start(uint16_t dev_id, uint16_t queue_id)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
VALID_QUEUE_OR_RET_ERR(queue_id, dev);
if (dev->data->queues[queue_id].started) {
rte_bbdev_log_debug("Queue %u of device %u already started",
queue_id, dev_id);
return 0;
}
if (dev->dev_ops->queue_start) {
int ret = dev->dev_ops->queue_start(dev, queue_id);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u queue %u start failed",
dev_id, queue_id);
return ret;
}
}
dev->data->queues[queue_id].started = true;
rte_bbdev_log_debug("Started queue %u of device %u", queue_id, dev_id);
return 0;
}
int
rte_bbdev_queue_stop(uint16_t dev_id, uint16_t queue_id)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
VALID_QUEUE_OR_RET_ERR(queue_id, dev);
if (!dev->data->queues[queue_id].started) {
rte_bbdev_log_debug("Queue %u of device %u already stopped",
queue_id, dev_id);
return 0;
}
if (dev->dev_ops->queue_stop) {
int ret = dev->dev_ops->queue_stop(dev, queue_id);
if (ret < 0) {
rte_bbdev_log(ERR, "Device %u queue %u stop failed",
dev_id, queue_id);
return ret;
}
}
dev->data->queues[queue_id].started = false;
rte_bbdev_log_debug("Stopped queue %u of device %u", queue_id, dev_id);
return 0;
}
/* Get device statistics */
static void
get_stats_from_queues(struct rte_bbdev *dev, struct rte_bbdev_stats *stats)
{
unsigned int q_id;
for (q_id = 0; q_id < dev->data->num_queues; q_id++) {
struct rte_bbdev_stats *q_stats =
&dev->data->queues[q_id].queue_stats;
stats->enqueued_count += q_stats->enqueued_count;
stats->dequeued_count += q_stats->dequeued_count;
stats->enqueue_err_count += q_stats->enqueue_err_count;
stats->dequeue_err_count += q_stats->dequeue_err_count;
stats->enqueue_warn_count += q_stats->enqueue_warn_count;
stats->dequeue_warn_count += q_stats->dequeue_warn_count;
}
rte_bbdev_log_debug("Got stats on %u", dev->data->dev_id);
}
static void
reset_stats_in_queues(struct rte_bbdev *dev)
{
unsigned int q_id;
for (q_id = 0; q_id < dev->data->num_queues; q_id++) {
struct rte_bbdev_stats *q_stats =
&dev->data->queues[q_id].queue_stats;
memset(q_stats, 0, sizeof(*q_stats));
}
rte_bbdev_log_debug("Reset stats on %u", dev->data->dev_id);
}
int
rte_bbdev_stats_get(uint16_t dev_id, struct rte_bbdev_stats *stats)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (stats == NULL) {
rte_bbdev_log(ERR, "NULL stats structure");
return -EINVAL;
}
memset(stats, 0, sizeof(*stats));
if (dev->dev_ops->stats_get != NULL)
dev->dev_ops->stats_get(dev, stats);
else
get_stats_from_queues(dev, stats);
rte_bbdev_log_debug("Retrieved stats of device %u", dev_id);
return 0;
}
int
rte_bbdev_stats_reset(uint16_t dev_id)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
if (dev->dev_ops->stats_reset != NULL)
dev->dev_ops->stats_reset(dev);
else
reset_stats_in_queues(dev);
rte_bbdev_log_debug("Reset stats of device %u", dev_id);
return 0;
}
int
rte_bbdev_info_get(uint16_t dev_id, struct rte_bbdev_info *dev_info)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_FUNC_OR_RET_ERR(dev->dev_ops->info_get, dev_id);
if (dev_info == NULL) {
rte_bbdev_log(ERR, "NULL dev info structure");
return -EINVAL;
}
/* Copy data maintained by device interface layer */
memset(dev_info, 0, sizeof(*dev_info));
dev_info->dev_name = dev->data->name;
dev_info->num_queues = dev->data->num_queues;
dev_info->device = dev->device;
dev_info->socket_id = dev->data->socket_id;
dev_info->started = dev->data->started;
/* Copy data maintained by device driver layer */
dev->dev_ops->info_get(dev, &dev_info->drv);
rte_bbdev_log_debug("Retrieved info of device %u", dev_id);
return 0;
}
int
rte_bbdev_queue_info_get(uint16_t dev_id, uint16_t queue_id,
struct rte_bbdev_queue_info *queue_info)
{
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
VALID_QUEUE_OR_RET_ERR(queue_id, dev);
if (queue_info == NULL) {
rte_bbdev_log(ERR, "NULL queue info structure");
return -EINVAL;
}
/* Copy data to output */
memset(queue_info, 0, sizeof(*queue_info));
queue_info->conf = dev->data->queues[queue_id].conf;
queue_info->started = dev->data->queues[queue_id].started;
rte_bbdev_log_debug("Retrieved info of queue %u of device %u",
queue_id, dev_id);
return 0;
}
/* Calculate size needed to store bbdev_op, depending on type */
static unsigned int
get_bbdev_op_size(enum rte_bbdev_op_type type)
{
unsigned int result = 0;
switch (type) {
case RTE_BBDEV_OP_NONE:
result = RTE_MAX(sizeof(struct rte_bbdev_dec_op),
sizeof(struct rte_bbdev_enc_op));
break;
case RTE_BBDEV_OP_TURBO_DEC:
result = sizeof(struct rte_bbdev_dec_op);
break;
case RTE_BBDEV_OP_TURBO_ENC:
result = sizeof(struct rte_bbdev_enc_op);
break;
case RTE_BBDEV_OP_LDPC_DEC:
result = sizeof(struct rte_bbdev_dec_op);
break;
case RTE_BBDEV_OP_LDPC_ENC:
result = sizeof(struct rte_bbdev_enc_op);
break;
case RTE_BBDEV_OP_FFT:
result = sizeof(struct rte_bbdev_fft_op);
break;
case RTE_BBDEV_OP_MLDTS:
result = sizeof(struct rte_bbdev_mldts_op);
break;
default:
break;
}
return result;
}
/* Initialise a bbdev_op structure */
static void
bbdev_op_init(struct rte_mempool *mempool, void *arg, void *element,
__rte_unused unsigned int n)
{
enum rte_bbdev_op_type type = *(enum rte_bbdev_op_type *)arg;
if (type == RTE_BBDEV_OP_TURBO_DEC || type == RTE_BBDEV_OP_LDPC_DEC) {
struct rte_bbdev_dec_op *op = element;
memset(op, 0, mempool->elt_size);
op->mempool = mempool;
} else if (type == RTE_BBDEV_OP_TURBO_ENC ||
type == RTE_BBDEV_OP_LDPC_ENC) {
struct rte_bbdev_enc_op *op = element;
memset(op, 0, mempool->elt_size);
op->mempool = mempool;
} else if (type == RTE_BBDEV_OP_FFT) {
struct rte_bbdev_fft_op *op = element;
memset(op, 0, mempool->elt_size);
op->mempool = mempool;
} else if (type == RTE_BBDEV_OP_MLDTS) {
struct rte_bbdev_mldts_op *op = element;
memset(op, 0, mempool->elt_size);
op->mempool = mempool;
}
}
struct rte_mempool *
rte_bbdev_op_pool_create(const char *name, enum rte_bbdev_op_type type,
unsigned int num_elements, unsigned int cache_size,
int socket_id)
{
struct rte_bbdev_op_pool_private *priv;
struct rte_mempool *mp;
const char *op_type_str;
if (name == NULL) {
rte_bbdev_log(ERR, "NULL name for op pool");
return NULL;
}
if (type >= BBDEV_OP_TYPE_COUNT) {
rte_bbdev_log(ERR,
"Invalid op type (%u), should be less than %u",
type, BBDEV_OP_TYPE_COUNT);
return NULL;
}
mp = rte_mempool_create(name, num_elements, get_bbdev_op_size(type),
cache_size, sizeof(struct rte_bbdev_op_pool_private),
NULL, NULL, bbdev_op_init, &type, socket_id, 0);
if (mp == NULL) {
rte_bbdev_log(ERR,
"Failed to create op pool %s (num ops=%u, op size=%u) with error: %s",
name, num_elements, get_bbdev_op_size(type),
rte_strerror(rte_errno));
return NULL;
}
op_type_str = rte_bbdev_op_type_str(type);
if (op_type_str == NULL)
return NULL;
rte_bbdev_log_debug(
"Op pool %s created for %u ops (type=%s, cache=%u, socket=%u, size=%u)",
name, num_elements, op_type_str, cache_size, socket_id,
get_bbdev_op_size(type));
priv = (struct rte_bbdev_op_pool_private *)rte_mempool_get_priv(mp);
priv->type = type;
return mp;
}
int
rte_bbdev_callback_register(uint16_t dev_id, enum rte_bbdev_event_type event,
rte_bbdev_cb_fn cb_fn, void *cb_arg)
{
struct rte_bbdev_callback *user_cb;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
if (event >= RTE_BBDEV_EVENT_MAX) {
rte_bbdev_log(ERR,
"Invalid event type (%u), should be less than %u",
event, RTE_BBDEV_EVENT_MAX);
return -EINVAL;
}
if (cb_fn == NULL) {
rte_bbdev_log(ERR, "NULL callback function");
return -EINVAL;
}
rte_spinlock_lock(&rte_bbdev_cb_lock);
TAILQ_FOREACH(user_cb, &(dev->list_cbs), next) {
if (user_cb->cb_fn == cb_fn &&
user_cb->cb_arg == cb_arg &&
user_cb->event == event)
break;
}
/* create a new callback. */
if (user_cb == NULL) {
user_cb = rte_zmalloc("INTR_USER_CALLBACK",
sizeof(struct rte_bbdev_callback), 0);
if (user_cb != NULL) {
user_cb->cb_fn = cb_fn;
user_cb->cb_arg = cb_arg;
user_cb->event = event;
TAILQ_INSERT_TAIL(&(dev->list_cbs), user_cb, next);
}
}
rte_spinlock_unlock(&rte_bbdev_cb_lock);
return (user_cb == NULL) ? -ENOMEM : 0;
}
int
rte_bbdev_callback_unregister(uint16_t dev_id, enum rte_bbdev_event_type event,
rte_bbdev_cb_fn cb_fn, void *cb_arg)
{
int ret = 0;
struct rte_bbdev_callback *cb, *next;
struct rte_bbdev *dev = get_dev(dev_id);
VALID_DEV_OR_RET_ERR(dev, dev_id);
if (event >= RTE_BBDEV_EVENT_MAX) {
rte_bbdev_log(ERR,
"Invalid event type (%u), should be less than %u",
event, RTE_BBDEV_EVENT_MAX);
return -EINVAL;