diff options
Diffstat (limited to 'lib/librte_rawdev')
| -rw-r--r-- | lib/librte_rawdev/Makefile | 28 | ||||
| -rw-r--r-- | lib/librte_rawdev/rte_rawdev.c | 546 | ||||
| -rw-r--r-- | lib/librte_rawdev/rte_rawdev.h | 609 | ||||
| -rw-r--r-- | lib/librte_rawdev/rte_rawdev_pmd.h | 607 | ||||
| -rw-r--r-- | lib/librte_rawdev/rte_rawdev_version.map | 34 |
5 files changed, 1824 insertions, 0 deletions
diff --git a/lib/librte_rawdev/Makefile b/lib/librte_rawdev/Makefile new file mode 100644 index 00000000..b9105b06 --- /dev/null +++ b/lib/librte_rawdev/Makefile @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright 2017 NXP + +include $(RTE_SDK)/mk/rte.vars.mk + +# library name +LIB = librte_rawdev.a + +# library version +LIBABIVER := 1 + +# build flags +CFLAGS += -DALLOW_EXPERIMENTAL_API +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +LDLIBS += -lrte_eal + +# library source files +SRCS-y += rte_rawdev.c + +# export include files +SYMLINK-y-include += rte_rawdev.h +SYMLINK-y-include += rte_rawdev_pmd.h + +# versioning export map +EXPORT_MAP := rte_rawdev_version.map + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/lib/librte_rawdev/rte_rawdev.c b/lib/librte_rawdev/rte_rawdev.c new file mode 100644 index 00000000..d314ef96 --- /dev/null +++ b/lib/librte_rawdev/rte_rawdev.c @@ -0,0 +1,546 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 NXP + */ + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> +#include <stdint.h> +#include <inttypes.h> +#include <sys/types.h> +#include <sys/queue.h> + +#include <rte_byteorder.h> +#include <rte_log.h> +#include <rte_debug.h> +#include <rte_dev.h> +#include <rte_memory.h> +#include <rte_memcpy.h> +#include <rte_memzone.h> +#include <rte_eal.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_common.h> +#include <rte_malloc.h> +#include <rte_errno.h> + +#include "rte_rawdev.h" +#include "rte_rawdev_pmd.h" + +/* dynamic log identifier */ +int librawdev_logtype; + +struct rte_rawdev rte_rawdevices[RTE_RAWDEV_MAX_DEVS]; + +struct rte_rawdev *rte_rawdevs = &rte_rawdevices[0]; + +static struct rte_rawdev_global rawdev_globals = { + .nb_devs = 0 +}; + +struct rte_rawdev_global *rte_rawdev_globals = &rawdev_globals; + +/* Raw device, northbound API implementation */ +uint8_t __rte_experimental +rte_rawdev_count(void) +{ + return rte_rawdev_globals->nb_devs; +} + +uint16_t __rte_experimental +rte_rawdev_get_dev_id(const char *name) +{ + uint16_t i; + + if (!name) + return -EINVAL; + + for (i = 0; i < rte_rawdev_globals->nb_devs; i++) + if ((strcmp(rte_rawdevices[i].name, name) + == 0) && + (rte_rawdevices[i].attached == + RTE_RAWDEV_ATTACHED)) + return i; + return -ENODEV; +} + +int __rte_experimental +rte_rawdev_socket_id(uint16_t dev_id) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + return dev->socket_id; +} + +int __rte_experimental +rte_rawdev_info_get(uint16_t dev_id, struct rte_rawdev_info *dev_info) +{ + struct rte_rawdev *rawdev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + RTE_FUNC_PTR_OR_ERR_RET(dev_info, -EINVAL); + + if (dev_info == NULL) + return -EINVAL; + + rawdev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*rawdev->dev_ops->dev_info_get, -ENOTSUP); + (*rawdev->dev_ops->dev_info_get)(rawdev, dev_info->dev_private); + + if (dev_info) { + + dev_info->driver_name = rawdev->driver_name; + dev_info->device = rawdev->device; + } + + return 0; +} + +int __rte_experimental +rte_rawdev_configure(uint16_t dev_id, struct rte_rawdev_info *dev_conf) +{ + struct rte_rawdev *dev; + int diag; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + RTE_FUNC_PTR_OR_ERR_RET(dev_conf, -EINVAL); + + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP); + + if (dev->started) { + RTE_RDEV_ERR( + "device %d must be stopped to allow configuration", dev_id); + return -EBUSY; + } + + /* Configure the device */ + diag = (*dev->dev_ops->dev_configure)(dev, dev_conf->dev_private); + if (diag != 0) + RTE_RDEV_ERR("dev%d dev_configure = %d", dev_id, diag); + else + dev->attached = 1; + + return diag; +} + +int __rte_experimental +rte_rawdev_queue_conf_get(uint16_t dev_id, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf, -ENOTSUP); + (*dev->dev_ops->queue_def_conf)(dev, queue_id, queue_conf); + return 0; +} + +int __rte_experimental +rte_rawdev_queue_setup(uint16_t dev_id, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_setup, -ENOTSUP); + return (*dev->dev_ops->queue_setup)(dev, queue_id, queue_conf); +} + +int __rte_experimental +rte_rawdev_queue_release(uint16_t dev_id, uint16_t queue_id) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP); + return (*dev->dev_ops->queue_release)(dev, queue_id); +} + +int __rte_experimental +rte_rawdev_get_attr(uint16_t dev_id, + const char *attr_name, + uint64_t *attr_value) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->attr_get, -ENOTSUP); + return (*dev->dev_ops->attr_get)(dev, attr_name, attr_value); +} + +int __rte_experimental +rte_rawdev_set_attr(uint16_t dev_id, + const char *attr_name, + const uint64_t attr_value) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->attr_set, -ENOTSUP); + return (*dev->dev_ops->attr_set)(dev, attr_name, attr_value); +} + +int __rte_experimental +rte_rawdev_enqueue_buffers(uint16_t dev_id, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->enqueue_bufs, -ENOTSUP); + return (*dev->dev_ops->enqueue_bufs)(dev, buffers, count, context); +} + +int __rte_experimental +rte_rawdev_dequeue_buffers(uint16_t dev_id, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dequeue_bufs, -ENOTSUP); + return (*dev->dev_ops->dequeue_bufs)(dev, buffers, count, context); +} + +int __rte_experimental +rte_rawdev_dump(uint16_t dev_id, FILE *f) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dump, -ENOTSUP); + return (*dev->dev_ops->dump)(dev, f); +} + +static int +xstats_get_count(uint16_t dev_id) +{ + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get_names, -ENOTSUP); + return (*dev->dev_ops->xstats_get_names)(dev, NULL, 0); +} + +int __rte_experimental +rte_rawdev_xstats_names_get(uint16_t dev_id, + struct rte_rawdev_xstats_name *xstats_names, + unsigned int size) +{ + const struct rte_rawdev *dev; + int cnt_expected_entries; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV); + + cnt_expected_entries = xstats_get_count(dev_id); + + if (xstats_names == NULL || cnt_expected_entries < 0 || + (int)size < cnt_expected_entries || size <= 0) + return cnt_expected_entries; + + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get_names, -ENOTSUP); + return (*dev->dev_ops->xstats_get_names)(dev, xstats_names, size); +} + +/* retrieve rawdev extended statistics */ +int __rte_experimental +rte_rawdev_xstats_get(uint16_t dev_id, + const unsigned int ids[], + uint64_t values[], + unsigned int n) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV); + const struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get, -ENOTSUP); + return (*dev->dev_ops->xstats_get)(dev, ids, values, n); +} + +uint64_t __rte_experimental +rte_rawdev_xstats_by_name_get(uint16_t dev_id, + const char *name, + unsigned int *id) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, 0); + const struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + unsigned int temp = -1; + + if (id != NULL) + *id = (unsigned int)-1; + else + id = &temp; /* driver never gets a NULL value */ + + /* implemented by driver */ + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get_by_name, -ENOTSUP); + return (*dev->dev_ops->xstats_get_by_name)(dev, name, id); +} + +int __rte_experimental +rte_rawdev_xstats_reset(uint16_t dev_id, + const uint32_t ids[], uint32_t nb_ids) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_reset, -ENOTSUP); + return (*dev->dev_ops->xstats_reset)(dev, ids, nb_ids); +} + +int __rte_experimental +rte_rawdev_firmware_status_get(uint16_t dev_id, rte_rawdev_obj_t status_info) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->firmware_status_get, -ENOTSUP); + return (*dev->dev_ops->firmware_status_get)(dev, status_info); +} + +int __rte_experimental +rte_rawdev_firmware_version_get(uint16_t dev_id, rte_rawdev_obj_t version_info) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->firmware_version_get, -ENOTSUP); + return (*dev->dev_ops->firmware_version_get)(dev, version_info); +} + +int __rte_experimental +rte_rawdev_firmware_load(uint16_t dev_id, rte_rawdev_obj_t firmware_image) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + if (!firmware_image) + return -EINVAL; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->firmware_load, -ENOTSUP); + return (*dev->dev_ops->firmware_load)(dev, firmware_image); +} + +int __rte_experimental +rte_rawdev_firmware_unload(uint16_t dev_id) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->firmware_load, -ENOTSUP); + return (*dev->dev_ops->firmware_unload)(dev); +} + +int __rte_experimental +rte_rawdev_selftest(uint16_t dev_id) +{ + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_rawdev *dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_selftest, -ENOTSUP); + return (*dev->dev_ops->dev_selftest)(); +} + +int __rte_experimental +rte_rawdev_start(uint16_t dev_id) +{ + struct rte_rawdev *dev; + int diag; + + RTE_RDEV_DEBUG("Start dev_id=%" PRIu8, dev_id); + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP); + + if (dev->started != 0) { + RTE_RDEV_ERR("Device with dev_id=%" PRIu8 "already started", + dev_id); + return 0; + } + + diag = (*dev->dev_ops->dev_start)(dev); + if (diag == 0) + dev->started = 1; + else + return diag; + + return 0; +} + +void __rte_experimental +rte_rawdev_stop(uint16_t dev_id) +{ + struct rte_rawdev *dev; + + RTE_RDEV_DEBUG("Stop dev_id=%" PRIu8, dev_id); + + RTE_RAWDEV_VALID_DEVID_OR_RET(dev_id); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop); + + if (dev->started == 0) { + RTE_RDEV_ERR("Device with dev_id=%" PRIu8 "already stopped", + dev_id); + return; + } + + (*dev->dev_ops->dev_stop)(dev); + dev->started = 0; +} + +int __rte_experimental +rte_rawdev_close(uint16_t dev_id) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP); + /* Device must be stopped before it can be closed */ + if (dev->started == 1) { + RTE_RDEV_ERR("Device %u must be stopped before closing", + dev_id); + return -EBUSY; + } + + return (*dev->dev_ops->dev_close)(dev); +} + +int __rte_experimental +rte_rawdev_reset(uint16_t dev_id) +{ + struct rte_rawdev *dev; + + RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_rawdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_reset, -ENOTSUP); + /* Reset is not dependent on state of the device */ + return (*dev->dev_ops->dev_reset)(dev); +} + +static inline uint8_t +rte_rawdev_find_free_device_index(void) +{ + uint16_t dev_id; + + for (dev_id = 0; dev_id < RTE_RAWDEV_MAX_DEVS; dev_id++) { + if (rte_rawdevs[dev_id].attached == + RTE_RAWDEV_DETACHED) + return dev_id; + } + + return RTE_RAWDEV_MAX_DEVS; +} + +struct rte_rawdev * __rte_experimental +rte_rawdev_pmd_allocate(const char *name, size_t dev_priv_size, int socket_id) +{ + struct rte_rawdev *rawdev; + uint16_t dev_id; + + if (rte_rawdev_pmd_get_named_dev(name) != NULL) { + RTE_RDEV_ERR("Event device with name %s already allocated!", + name); + return NULL; + } + + dev_id = rte_rawdev_find_free_device_index(); + if (dev_id == RTE_RAWDEV_MAX_DEVS) { + RTE_RDEV_ERR("Reached maximum number of raw devices"); + return NULL; + } + + rawdev = &rte_rawdevs[dev_id]; + + rawdev->dev_private = rte_zmalloc_socket("rawdev private", + dev_priv_size, + RTE_CACHE_LINE_SIZE, + socket_id); + if (!rawdev->dev_private) { + RTE_RDEV_ERR("Unable to allocate memory to Skeleton dev"); + return NULL; + } + + + rawdev->dev_id = dev_id; + rawdev->socket_id = socket_id; + rawdev->started = 0; + snprintf(rawdev->name, RTE_RAWDEV_NAME_MAX_LEN, "%s", name); + + rawdev->attached = RTE_RAWDEV_ATTACHED; + rawdev_globals.nb_devs++; + + return rawdev; +} + +int __rte_experimental +rte_rawdev_pmd_release(struct rte_rawdev *rawdev) +{ + int ret; + + if (rawdev == NULL) + return -EINVAL; + + ret = rte_rawdev_close(rawdev->dev_id); + if (ret < 0) + return ret; + + rawdev->attached = RTE_RAWDEV_DETACHED; + rawdev_globals.nb_devs--; + + rawdev->dev_id = 0; + rawdev->socket_id = 0; + rawdev->dev_ops = NULL; + if (rawdev->dev_private) { + rte_free(rawdev->dev_private); + rawdev->dev_private = NULL; + } + + return 0; +} + +RTE_INIT(librawdev_init_log); + +static void +librawdev_init_log(void) +{ + librawdev_logtype = rte_log_register("lib.rawdev"); + if (librawdev_logtype >= 0) + rte_log_set_level(librawdev_logtype, RTE_LOG_INFO); +} diff --git a/lib/librte_rawdev/rte_rawdev.h b/lib/librte_rawdev/rte_rawdev.h new file mode 100644 index 00000000..2e14919b --- /dev/null +++ b/lib/librte_rawdev/rte_rawdev.h @@ -0,0 +1,609 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 NXP + */ + +#ifndef _RTE_RAWDEV_H_ +#define _RTE_RAWDEV_H_ + +/** + * @file rte_rawdev.h + * + * Generic device abstraction APIs. + * + * This API allow applications to configure and use generic devices having + * no specific type already available in DPDK. + * + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rte_common.h> +#include <rte_memory.h> +#include <rte_errno.h> + +/* Rawdevice object - essentially a void to be typecasted by implementation */ +typedef void *rte_rawdev_obj_t; + +/** + * Get the total number of raw devices that have been successfully + * initialised. + * + * @return + * The total number of usable raw devices. + */ +uint8_t __rte_experimental +rte_rawdev_count(void); + +/** + * Get the device identifier for the named raw device. + * + * @param name + * Raw device name to select the raw device identifier. + * + * @return + * Returns raw device identifier on success. + * - <0: Failure to find named raw device. + */ +uint16_t __rte_experimental +rte_rawdev_get_dev_id(const char *name); + +/** + * Return the NUMA socket to which a device is connected. + * + * @param dev_id + * The identifier of the device. + * @return + * The NUMA socket id to which the device is connected or + * a default of zero if the socket could not be determined. + * -(-EINVAL) dev_id value is out of range. + */ +int __rte_experimental +rte_rawdev_socket_id(uint16_t dev_id); + +/** + * Raw device information forward declaration + */ +struct rte_rawdev_info; + +/** + * Retrieve the contextual information of a raw device. + * + * @param dev_id + * The identifier of the device. + * + * @param[out] dev_info + * A pointer to a structure of type *rte_rawdev_info* to be filled with the + * contextual information of the device. + * + * @return + * - 0: Success, driver updates the contextual information of the raw device + * - <0: Error code returned by the driver info get function. + * + */ +int __rte_experimental +rte_rawdev_info_get(uint16_t dev_id, struct rte_rawdev_info *dev_info); + +/** + * Configure a raw device. + * + * This function must be invoked first before any other function in the + * API. This function can also be re-invoked when a device is in the + * stopped state. + * + * The caller may use rte_rawdev_info_get() to get the capability of each + * resources available for this raw device. + * + * @param dev_id + * The identifier of the device to configure. + * @param dev_conf + * The raw device configuration structure encapsulated into rte_rawdev_info + * object. + * It is assumed that the opaque object has enough information which the + * driver/implementation can use to configure the device. It is also assumed + * that once the configuration is done, a `queue_id` type field can be used + * to refer to some arbitrary internal representation of a queue. + * + * @return + * - 0: Success, device configured. + * - <0: Error code returned by the driver configuration function. + */ +int __rte_experimental +rte_rawdev_configure(uint16_t dev_id, struct rte_rawdev_info *dev_conf); + + +/** + * Retrieve the current configuration information of a raw queue designated + * by its *queue_id* from the raw driver for a raw device. + * + * This function intended to be used in conjunction with rte_raw_queue_setup() + * where caller needs to set up the queue by overriding few default values. + * + * @param dev_id + * The identifier of the device. + * @param queue_id + * The index of the raw queue to get the configuration information. + * The value must be in the range [0, nb_raw_queues - 1] + * previously supplied to rte_rawdev_configure(). + * @param[out] queue_conf + * The pointer to the default raw queue configuration data. + * @return + * - 0: Success, driver updates the default raw queue configuration data. + * - <0: Error code returned by the driver info get function. + * + * @see rte_raw_queue_setup() + * + */ +int __rte_experimental +rte_rawdev_queue_conf_get(uint16_t dev_id, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf); + +/** + * Allocate and set up a raw queue for a raw device. + * + * @param dev_id + * The identifier of the device. + * @param queue_id + * The index of the raw queue to setup. The value must be in the range + * [0, nb_raw_queues - 1] previously supplied to rte_rawdev_configure(). + * @param queue_conf + * The pointer to the configuration data to be used for the raw queue. + * NULL value is allowed, in which case default configuration used. + * + * @see rte_rawdev_queue_conf_get() + * + * @return + * - 0: Success, raw queue correctly set up. + * - <0: raw queue configuration failed + */ +int __rte_experimental +rte_rawdev_queue_setup(uint16_t dev_id, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf); + +/** + * Release and deallocate a raw queue from a raw device. + * + * @param dev_id + * The identifier of the device. + * @param queue_id + * The index of the raw queue to release. The value must be in the range + * [0, nb_raw_queues - 1] previously supplied to rte_rawdev_configure(). + * + * @see rte_rawdev_queue_conf_get() + * + * @return + * - 0: Success, raw queue released. + * - <0: raw queue configuration failed + */ +int __rte_experimental +rte_rawdev_queue_release(uint16_t dev_id, uint16_t queue_id); +/** + * Get the number of raw queues on a specific raw device + * + * @param dev_id + * Raw device identifier. + * @return + * - The number of configured raw queues + */ +uint16_t __rte_experimental +rte_rawdev_queue_count(uint16_t dev_id); + +/** + * Start a raw device. + * + * The device start step is the last one and consists of setting the raw + * queues to start accepting the raws and schedules to raw ports. + * + * On success, all basic functions exported by the API (raw enqueue, + * raw dequeue and so on) can be invoked. + * + * @param dev_id + * Raw device identifier + * @return + * - 0: Success, device started. + * < 0: Failure + */ +int __rte_experimental +rte_rawdev_start(uint16_t dev_id); + +/** + * Stop a raw device. The device can be restarted with a call to + * rte_rawdev_start() + * + * @param dev_id + * Raw device identifier. + */ +void __rte_experimental +rte_rawdev_stop(uint16_t dev_id); + +/** + * Close a raw device. The device cannot be restarted after this call. + * + * @param dev_id + * Raw device identifier + * + * @return + * - 0 on successfully closing device + * - <0 on failure to close device + * - (-EAGAIN) if device is busy + */ +int __rte_experimental +rte_rawdev_close(uint16_t dev_id); + +/** + * Reset a raw device. + * This is different from cycle of rte_rawdev_start->rte_rawdev_stop in the + * sense similar to hard or soft reset. + * + * @param dev_id + * Raw device identifiers + * @return + * 0 for sucessful reset, + * !0 for failure in resetting + */ +int __rte_experimental +rte_rawdev_reset(uint16_t dev_id); + +#define RTE_RAWDEV_NAME_MAX_LEN (64) +/**< @internal Max length of name of raw PMD */ + + + +/** @internal + * The data structure associated with each raw device. + * It is a placeholder for PMD specific data, encapsulating only information + * related to framework. + */ +struct rte_rawdev { + /**< Socket ID where memory is allocated */ + int socket_id; + /**< Device ID for this instance */ + uint16_t dev_id; + /**< Functions exported by PMD */ + const struct rte_rawdev_ops *dev_ops; + /**< Device info. supplied during device initialization */ + struct rte_device *device; + /**< Driver info. supplied by probing */ + const char *driver_name; + + RTE_STD_C11 + /**< Flag indicating the device is attached */ + uint8_t attached : 1; + /**< Device state: STARTED(1)/STOPPED(0) */ + uint8_t started : 1; + + /**< PMD-specific private data */ + rte_rawdev_obj_t dev_private; + /**< Device name */ + char name[RTE_RAWDEV_NAME_MAX_LEN]; +} __rte_cache_aligned; + +/** @internal The pool of rte_rawdev structures. */ +extern struct rte_rawdev *rte_rawdevs; + + +struct rte_rawdev_info { + /**< Name of driver handling this device */ + const char *driver_name; + /**< Device encapsulation */ + struct rte_device *device; + /**< Socket ID where memory is allocated */ + int socket_id; + /**< PMD-specific private data */ + rte_rawdev_obj_t dev_private; +}; + +struct rte_rawdev_buf { + /**< Opaque buffer reference */ + void *buf_addr; +}; + +/** + * Dump internal information about *dev_id* to the FILE* provided in *f*. + * + * @param dev_id + * The identifier of the device. + * + * @param f + * A pointer to a file for output + * + * @return + * - 0: on success + * - <0: on failure. + */ +int __rte_experimental +rte_rawdev_dump(uint16_t dev_id, FILE *f); + +/** + * Get an attribute value from implementation. + * Attribute is an opaque handle agreed upon between application and PMD. + * + * Implementations are expected to maintain an array of attribute-value pairs + * based on application calls. Memory management for this structure is + * shared responsibility of implementation and application. + * + * @param dev_id + * The identifier of the device to configure. + * @param attr_name + * Opaque object representing an attribute in implementation. + * @param attr_value [out] + * Opaque response to the attribute value. In case of error, this remains + * untouched. This is double pointer of void type. + * @return + * 0 for success + * !0 Error; attr_value remains untouched in case of error. + */ +int __rte_experimental +rte_rawdev_get_attr(uint16_t dev_id, + const char *attr_name, + uint64_t *attr_value); + +/** + * Set an attribute value. + * Attribute is an opaque handle agreed upon between application and PMD. + * + * @param dev_id + * The identifier of the device to configure. + * @param attr_name + * Opaque object representing an attribute in implementation. + * @param attr_value + * Value of the attribute represented by attr_name + * @return + * 0 for success + * !0 Error + */ +int __rte_experimental +rte_rawdev_set_attr(uint16_t dev_id, + const char *attr_name, + const uint64_t attr_value); + +/** + * Enqueue a stream of buffers to the device. + * + * Rather than specifying a queue, this API passes along an opaque object + * to the driver implementation. That object can be a queue or any other + * contextual information necessary for the device to enqueue buffers. + * + * @param dev_id + * The identifier of the device to configure. + * @param buffers + * Collection of buffers for enqueueing + * @param count + * Count of buffers to enqueue + * @param context + * Opaque context information. + * @return + * >=0 for buffers enqueued + * !0 for failure. + * Whether partial enqueue is failure or success is defined between app + * and driver implementation. + */ +int __rte_experimental +rte_rawdev_enqueue_buffers(uint16_t dev_id, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context); + +/** + * Dequeue a stream of buffers from the device. + * + * Rather than specifying a queue, this API passes along an opaque object + * to the driver implementation. That object can be a queue or any other + * contextual information necessary for the device to dequeue buffers. + * + * Application should have allocated enough space to store `count` response + * buffers. + * Releasing buffers dequeued is responsibility of the application. + * + * @param dev_id + * The identifier of the device to configure. + * @param buffers + * Collection of buffers dequeued + * @param count + * Max buffers expected to be dequeued + * @param context + * Opaque context information. + * @return + * >=0 for buffers dequeued + * !0 for failure. + * Whether partial enqueue is failure or success is defined between app + * and driver implementation. + */ +int __rte_experimental +rte_rawdev_dequeue_buffers(uint16_t dev_id, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context); + +/** Maximum name length for extended statistics counters */ +#define RTE_RAW_DEV_XSTATS_NAME_SIZE 64 + +/** + * A name-key lookup element for extended statistics. + * + * This structure is used to map between names and ID numbers + * for extended ethdev statistics. + */ +struct rte_rawdev_xstats_name { + char name[RTE_RAW_DEV_XSTATS_NAME_SIZE]; +}; + +/** + * Retrieve names of extended statistics of a raw device. + * + * @param dev_id + * The identifier of the raw device. + * @param[out] xstats_names + * Block of memory to insert names into. Must be at least size in capacity. + * If set to NULL, function returns required capacity. + * @param size + * Capacity of xstats_names (number of names). + * @return + * - positive value lower or equal to size: success. The return value + * is the number of entries filled in the stats table. + * - positive value higher than size: error, the given statistics table + * is too small. The return value corresponds to the size that should + * be given to succeed. The entries in the table are not valid and + * shall not be used by the caller. + * - negative value on error: + * -ENODEV for invalid *dev_id* + * -ENOTSUP if the device doesn't support this function. + */ +int __rte_experimental +rte_rawdev_xstats_names_get(uint16_t dev_id, + struct rte_rawdev_xstats_name *xstats_names, + unsigned int size); + +/** + * Retrieve extended statistics of a raw device. + * + * @param dev_id + * The identifier of the device. + * @param ids + * The id numbers of the stats to get. The ids can be got from the stat + * position in the stat list from rte_rawdev_get_xstats_names(), or + * by using rte_rawdev_get_xstats_by_name() + * @param[out] values + * The values for each stats request by ID. + * @param n + * The number of stats requested + * @return + * - positive value: number of stat entries filled into the values array + * - negative value on error: + * -ENODEV for invalid *dev_id* + * -ENOTSUP if the device doesn't support this function. + */ +int __rte_experimental +rte_rawdev_xstats_get(uint16_t dev_id, + const unsigned int ids[], + uint64_t values[], + unsigned int n); + +/** + * Retrieve the value of a single stat by requesting it by name. + * + * @param dev_id + * The identifier of the device + * @param name + * The stat name to retrieve + * @param[out] id + * If non-NULL, the numerical id of the stat will be returned, so that further + * requests for the stat can be got using rte_rawdev_xstats_get, which will + * be faster as it doesn't need to scan a list of names for the stat. + * If the stat cannot be found, the id returned will be (unsigned)-1. + * @return + * - positive value or zero: the stat value + * - negative value: -EINVAL if stat not found, -ENOTSUP if not supported. + */ +uint64_t __rte_experimental +rte_rawdev_xstats_by_name_get(uint16_t dev_id, + const char *name, + unsigned int *id); + +/** + * Reset the values of the xstats of the selected component in the device. + * + * @param dev_id + * The identifier of the device + * @param ids + * Selects specific statistics to be reset. When NULL, all statistics + * will be reset. If non-NULL, must point to array of at least + * *nb_ids* size. + * @param nb_ids + * The number of ids available from the *ids* array. Ignored when ids is NULL. + * @return + * - zero: successfully reset the statistics to zero + * - negative value: -EINVAL invalid parameters, -ENOTSUP if not supported. + */ +int __rte_experimental +rte_rawdev_xstats_reset(uint16_t dev_id, + const uint32_t ids[], + uint32_t nb_ids); + +/** + * Get Firmware status of the device.. + * Returns a memory allocated by driver/implementation containing status + * information block. It is responsibility of caller to release the buffer. + * + * @param dev_id + * Raw device identifier + * @param status_info + * Pointer to status information area. Caller is responsible for releasing + * the memory associated. + * @return + * 0 for success, + * !0 for failure, `status_info` argument state is undefined + */ +int __rte_experimental +rte_rawdev_firmware_status_get(uint16_t dev_id, + rte_rawdev_obj_t status_info); + +/** + * Get Firmware version of the device. + * Returns a memory allocated by driver/implementation containing version + * information block. It is responsibility of caller to release the buffer. + * + * @param dev_id + * Raw device identifier + * @param version_info + * Pointer to version information area. Caller is responsible for releasing + * the memory associated. + * @return + * 0 for success, + * !0 for failure, `version_info` argument state is undefined + */ +int __rte_experimental +rte_rawdev_firmware_version_get(uint16_t dev_id, + rte_rawdev_obj_t version_info); + +/** + * Load firmware on the device. + * TODO: In future, methods like directly flashing from file too can be + * supported. + * + * @param dev_id + * Raw device identifier + * @param firmware_image + * Pointer to buffer containing image binary data + * @return + * 0 for successful load + * !0 for failure to load the provided image, or image incorrect. + */ +int __rte_experimental +rte_rawdev_firmware_load(uint16_t dev_id, rte_rawdev_obj_t firmware_image); + +/** + * Unload firmware from the device. + * + * @param dev_id + * Raw device identifiers + * @return + * 0 for successful Unload + * !0 for failure in unloading + */ +int __rte_experimental +rte_rawdev_firmware_unload(uint16_t dev_id); + +/** + * Trigger the rawdev self test. + * + * @param dev_id + * The identifier of the device + * @return + * - 0: Selftest successful + * - -ENOTSUP if the device doesn't support selftest + * - other values < 0 on failure. + */ +int __rte_experimental +rte_rawdev_selftest(uint16_t dev_id); + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_RAWDEV_H_ */ diff --git a/lib/librte_rawdev/rte_rawdev_pmd.h b/lib/librte_rawdev/rte_rawdev_pmd.h new file mode 100644 index 00000000..408adf0f --- /dev/null +++ b/lib/librte_rawdev/rte_rawdev_pmd.h @@ -0,0 +1,607 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 NXP + */ + +#ifndef _RTE_RAWDEV_PMD_H_ +#define _RTE_RAWDEV_PMD_H_ + +/** @file + * RTE RAW PMD APIs + * + * @note + * Driver facing APIs for a raw device. These are not to be called directly by + * any application. + * + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <string.h> + +#include <rte_dev.h> +#include <rte_malloc.h> +#include <rte_log.h> +#include <rte_common.h> + +#include "rte_rawdev.h" + +extern int librawdev_logtype; + +/* Logging Macros */ +#define RTE_RDEV_LOG(level, fmt, args...) \ + rte_log(RTE_LOG_ ## level, librawdev_logtype, "%s(): " fmt "\n", \ + __func__, ##args) + +#define RTE_RDEV_ERR(fmt, args...) \ + RTE_RDEV_LOG(ERR, fmt, ## args) +#define RTE_RDEV_DEBUG(fmt, args...) \ + RTE_RDEV_LOG(DEBUG, fmt, ## args) +#define RTE_RDEV_INFO(fmt, args...) \ + RTE_RDEV_LOG(INFO, fmt, ## args) + + +/* Macros to check for valid device */ +#define RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, retval) do { \ + if (!rte_rawdev_pmd_is_valid_dev((dev_id))) { \ + RTE_RDEV_ERR("Invalid dev_id=%d", dev_id); \ + return retval; \ + } \ +} while (0) + +#define RTE_RAWDEV_VALID_DEVID_OR_RET(dev_id) do { \ + if (!rte_rawdev_pmd_is_valid_dev((dev_id))) { \ + RTE_RDEV_ERR("Invalid dev_id=%d", dev_id); \ + return; \ + } \ +} while (0) + +#define RTE_RAWDEV_DETACHED (0) +#define RTE_RAWDEV_ATTACHED (1) + +/* Global structure used for maintaining state of allocated raw devices. + * + * TODO: Can be expanded to <type of raw device>:<count> in future. + * Applications should be able to select from a number of type of raw + * devices which were detected or attached to this DPDK instance. + */ +struct rte_rawdev_global { + /**< Number of devices found */ + uint16_t nb_devs; +}; + +extern struct rte_rawdev_global *rte_rawdev_globals; +/** Pointer to global raw devices data structure. */ +extern struct rte_rawdev *rte_rawdevs; +/** The pool of rte_rawdev structures. */ + +/** + * Get the rte_rawdev structure device pointer for the named device. + * + * @param name + * device name to select the device structure. + * + * @return + * - The rte_rawdev structure pointer for the given device ID. + */ +static inline struct rte_rawdev * +rte_rawdev_pmd_get_named_dev(const char *name) +{ + struct rte_rawdev *dev; + unsigned int i; + + if (name == NULL) + return NULL; + + for (i = 0; i < RTE_RAWDEV_MAX_DEVS; i++) { + dev = &rte_rawdevs[i]; + if ((dev->attached == RTE_RAWDEV_ATTACHED) && + (strcmp(dev->name, name) == 0)) + return dev; + } + + return NULL; +} + +/** + * Validate if the raw device index is a valid attached raw device. + * + * @param dev_id + * raw device index. + * + * @return + * - If the device index is valid (1) or not (0). + */ +static inline unsigned +rte_rawdev_pmd_is_valid_dev(uint8_t dev_id) +{ + struct rte_rawdev *dev; + + if (dev_id >= RTE_RAWDEV_MAX_DEVS) + return 0; + + dev = &rte_rawdevs[dev_id]; + if (dev->attached != RTE_RAWDEV_ATTACHED) + return 0; + else + return 1; +} + +/** + * Definitions of all functions exported by a driver through the + * the generic structure of type *rawdev_ops* supplied in the + * *rte_rawdev* structure associated with a device. + */ + +/** + * Get device information of a device. + * + * @param dev + * Raw device pointer + * @param dev_info + * Raw device information structure + * + * @return + * Returns 0 on success + */ +typedef void (*rawdev_info_get_t)(struct rte_rawdev *dev, + rte_rawdev_obj_t dev_info); + +/** + * Configure a device. + * + * @param dev + * Raw device pointer + * @param config + * Void object containing device specific configuration + * + * @return + * Returns 0 on success + */ +typedef int (*rawdev_configure_t)(const struct rte_rawdev *dev, + rte_rawdev_obj_t config); + +/** + * Start a configured device. + * + * @param dev + * Raw device pointer + * + * @return + * Returns 0 on success + */ +typedef int (*rawdev_start_t)(struct rte_rawdev *dev); + +/** + * Stop a configured device. + * + * @param dev + * Raw device pointer + */ +typedef void (*rawdev_stop_t)(struct rte_rawdev *dev); + +/** + * Close a configured device. + * + * @param dev + * Raw device pointer + * + * @return + * - 0 on success + * - (-EAGAIN) if can't close as device is busy + */ +typedef int (*rawdev_close_t)(struct rte_rawdev *dev); + +/** + * Reset a configured device. + * + * @param dev + * Raw device pointer + * @return + * 0 for success + * !0 for failure + */ +typedef int (*rawdev_reset_t)(struct rte_rawdev *dev); + +/** + * Retrieve the current raw queue configuration. + * + * @param dev + * Raw device pointer + * @param queue_id + * Raw device queue index + * @param[out] queue_conf + * Raw device queue configuration structure + * + */ +typedef void (*rawdev_queue_conf_get_t)(struct rte_rawdev *dev, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf); + +/** + * Setup an raw queue. + * + * @param dev + * Raw device pointer + * @param queue_id + * Rawqueue index + * @param queue_conf + * Rawqueue configuration structure + * + * @return + * Returns 0 on success. + */ +typedef int (*rawdev_queue_setup_t)(struct rte_rawdev *dev, + uint16_t queue_id, + rte_rawdev_obj_t queue_conf); + +/** + * Release resources allocated by given raw queue. + * + * @param dev + * Raw device pointer + * @param queue_id + * Raw queue index + * + */ +typedef int (*rawdev_queue_release_t)(struct rte_rawdev *dev, + uint16_t queue_id); + +/** + * Enqueue an array of raw buffers to the device. + * + * Buffer being used is opaque - it can be obtained from mempool or from + * any other source. Interpretation of buffer is responsibility of driver. + * + * @param dev + * Raw device pointer + * @param bufs + * array of buffers + * @param count + * number of buffers passed + * @param context + * an opaque object representing context of the call; for example, an + * application can pass information about the queues on which enqueue needs + * to be done. Or, the enqueue operation might be passed reference to an + * object containing a callback (agreed upon between applicatio and driver). + * + * @return + * >=0 Count of buffers successfully enqueued (0: no buffers enqueued) + * <0 Error count in case of error + */ +typedef int (*rawdev_enqueue_bufs_t)(struct rte_rawdev *dev, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context); + +/** + * Dequeue an array of raw buffers from the device. + * + * @param dev + * Raw device pointer + * @param bufs + * array of buffers + * @param count + * Max buffers expected to be dequeued + * @param context + * an opaque object representing context of the call. Based on this object, + * the application and driver can coordinate for dequeue operation involving + * agreed upon semantics. For example, queue information/id on which Dequeue + * needs to be performed. + * @return + * >0, ~0: Count of buffers returned + * <0: Error + * Whether short dequeue is success or failure is decided between app and + * driver. + */ +typedef int (*rawdev_dequeue_bufs_t)(struct rte_rawdev *dev, + struct rte_rawdev_buf **buffers, + unsigned int count, + rte_rawdev_obj_t context); + +/** + * Dump internal information + * + * @param dev + * Raw device pointer + * @param f + * A pointer to a file for output + * @return + * 0 for success, + * !0 Error + * + */ +typedef int (*rawdev_dump_t)(struct rte_rawdev *dev, FILE *f); + +/** + * Get an attribute value from implementation. + * Attribute is an opaque handle agreed upon between application and PMD. + * + * @param dev + * Raw device pointer + * @param attr_name + * Opaque object representing an attribute in implementation. + * @param attr_value [out] + * Opaque response to the attribute value. In case of error, this remains + * untouched. This is double pointer of void type. + * @return + * 0 for success + * !0 Error; attr_value remains untouched in case of error. + */ +typedef int (*rawdev_get_attr_t)(struct rte_rawdev *dev, + const char *attr_name, + uint64_t *attr_value); + +/** + * Set an attribute value. + * Attribute is an opaque handle agreed upon between application and PMD. + * + * @param dev + * Raw device pointer + * @param attr_name + * Opaque object representing an attribute in implementation. + * @param attr_value + * Value of the attribute represented by attr_name + * @return + * 0 for success + * !0 Error + */ +typedef int (*rawdev_set_attr_t)(struct rte_rawdev *dev, + const char *attr_name, + const uint64_t attr_value); + +/** + * Retrieve a set of statistics from device. + * Note: Being a raw device, the stats are specific to the device being + * implemented thus represented as xstats. + * + * @param dev + * Raw device pointer + * @param ids + * The stat ids to retrieve + * @param values + * The returned stat values + * @param n + * The number of id values and entries in the values array + * @return + * The number of stat values successfully filled into the values array + */ +typedef int (*rawdev_xstats_get_t)(const struct rte_rawdev *dev, + const unsigned int ids[], uint64_t values[], unsigned int n); + +/** + * Resets the statistic values in xstats for the device. + */ +typedef int (*rawdev_xstats_reset_t)(struct rte_rawdev *dev, + const uint32_t ids[], + uint32_t nb_ids); + +/** + * Get names of extended stats of an raw device + * + * @param dev + * Raw device pointer + * @param xstats_names + * Array of name values to be filled in + * @param size + * Number of values in the xstats_names array + * @return + * When size >= the number of stats, return the number of stat values filled + * into the array. + * When size < the number of available stats, return the number of stats + * values, and do not fill in any data into xstats_names. + */ +typedef int (*rawdev_xstats_get_names_t)(const struct rte_rawdev *dev, + struct rte_rawdev_xstats_name *xstats_names, + unsigned int size); + +/** + * Get value of one stats and optionally return its id + * + * @param dev + * Raw device pointer + * @param name + * The name of the stat to retrieve + * @param id + * Pointer to an unsigned int where we store the stat-id. + * This pointer may be null if the id is not required. + * @return + * The value of the stat, or (uint64_t)-1 if the stat is not found. + * If the stat is not found, the id value will be returned as (unsigned)-1, + * if id pointer is non-NULL + */ +typedef uint64_t (*rawdev_xstats_get_by_name_t)(const struct rte_rawdev *dev, + const char *name, + unsigned int *id); + +/** + * Get firmware/device-stack status. + * Implementation to allocate buffer for returning information. + * + * @param dev + * Raw device pointer + * @param status + * void block containing device specific status information + * @return + * 0 for success, + * !0 for failure, with undefined value in `status_info` + */ +typedef int (*rawdev_firmware_status_get_t)(struct rte_rawdev *dev, + rte_rawdev_obj_t status_info); + +/** + * Get firmware version information + * + * @param dev + * Raw device pointer + * @param version_info + * void pointer to version information returned by device + * @return + * 0 for success, + * !0 for failure, with undefined value in `version_info` + */ +typedef int (*rawdev_firmware_version_get_t)(struct rte_rawdev *dev, + rte_rawdev_obj_t version_info); + +/** + * Load firwmare from a buffer (DMA'able) + * + * @param dev + * Raw device pointer + * @param firmware_file + * file pointer to firmware area + * @return + * >0, ~0: for successful load + * <0: for failure + * + * @see Application may use 'firmware_version_get` for ascertaining successful + * load + */ +typedef int (*rawdev_firmware_load_t)(struct rte_rawdev *dev, + rte_rawdev_obj_t firmware_buf); + +/** + * Unload firwmare + * + * @param dev + * Raw device pointer + * @return + * >0, ~0 for successful unloading + * <0 for failure in unloading + * + * Note: Application can use the `firmware_status_get` or + * `firmware_version_get` to get result of unload. + */ +typedef int (*rawdev_firmware_unload_t)(struct rte_rawdev *dev); + +/** + * Start rawdev selftest + * + * @return + * Return 0 on success + */ +typedef int (*rawdev_selftest_t)(void); + +/** Rawdevice operations function pointer table */ +struct rte_rawdev_ops { + /**< Get device info. */ + rawdev_info_get_t dev_info_get; + /**< Configure device. */ + rawdev_configure_t dev_configure; + /**< Start device. */ + rawdev_start_t dev_start; + /**< Stop device. */ + rawdev_stop_t dev_stop; + /**< Close device. */ + rawdev_close_t dev_close; + /**< Reset device. */ + rawdev_reset_t dev_reset; + + /**< Get raw queue configuration. */ + rawdev_queue_conf_get_t queue_def_conf; + /**< Set up an raw queue. */ + rawdev_queue_setup_t queue_setup; + /**< Release an raw queue. */ + rawdev_queue_release_t queue_release; + + /**< Enqueue an array of raw buffers to device. */ + rawdev_enqueue_bufs_t enqueue_bufs; + /**< Dequeue an array of raw buffers from device. */ + /** TODO: Callback based enqueue and dequeue support */ + rawdev_dequeue_bufs_t dequeue_bufs; + + /* Dump internal information */ + rawdev_dump_t dump; + + /**< Get an attribute managed by the implementation */ + rawdev_get_attr_t attr_get; + /**< Set an attribute managed by the implementation */ + rawdev_set_attr_t attr_set; + + /**< Get extended device statistics. */ + rawdev_xstats_get_t xstats_get; + /**< Get names of extended stats. */ + rawdev_xstats_get_names_t xstats_get_names; + /**< Get one value by name. */ + rawdev_xstats_get_by_name_t xstats_get_by_name; + /**< Reset the statistics values in xstats. */ + rawdev_xstats_reset_t xstats_reset; + + /**< Obtainer firmware status */ + rawdev_firmware_status_get_t firmware_status_get; + /**< Obtain firmware version information */ + rawdev_firmware_version_get_t firmware_version_get; + /**< Load firmware */ + rawdev_firmware_load_t firmware_load; + /**< Unload firmware */ + rawdev_firmware_unload_t firmware_unload; + + /**< Device selftest function */ + rawdev_selftest_t dev_selftest; +}; + +/** + * Allocates a new rawdev slot for an raw device and returns the pointer + * to that slot for the driver to use. + * + * @param name + * Unique identifier name for each device + * @param dev_private_size + * Private data allocated within rte_rawdev object. + * @param socket_id + * Socket to allocate resources on. + * @return + * - Slot in the rte_dev_devices array for a new device; + */ +struct rte_rawdev * __rte_experimental +rte_rawdev_pmd_allocate(const char *name, size_t dev_private_size, + int socket_id); + +/** + * Release the specified rawdev device. + * + * @param rawdev + * The *rawdev* pointer is the address of the *rte_rawdev* structure. + * @return + * - 0 on success, negative on error + */ +int __rte_experimental +rte_rawdev_pmd_release(struct rte_rawdev *rawdev); + +/** + * Creates a new raw device and returns the pointer to that device. + * + * @param name + * Pointer to a character array containing name of the device + * @param dev_private_size + * Size of raw PMDs private data + * @param socket_id + * Socket to allocate resources on. + * + * @return + * - Raw device pointer if device is successfully created. + * - NULL if device cannot be created. + */ +struct rte_rawdev * __rte_experimental +rte_rawdev_pmd_init(const char *name, size_t dev_private_size, + int socket_id); + +/** + * Destroy a raw device + * + * @param name + * Name of the device + * @return + * - 0 on success, negative on error + */ +int __rte_experimental +rte_rawdev_pmd_uninit(const char *name); + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_RAWDEV_PMD_H_ */ diff --git a/lib/librte_rawdev/rte_rawdev_version.map b/lib/librte_rawdev/rte_rawdev_version.map new file mode 100644 index 00000000..af4465e2 --- /dev/null +++ b/lib/librte_rawdev/rte_rawdev_version.map @@ -0,0 +1,34 @@ +EXPERIMENTAL { + global: + + rte_rawdev_close; + rte_rawdev_configure; + rte_rawdev_count; + rte_rawdev_dequeue_buffers; + rte_rawdev_enqueue_buffers; + rte_rawdev_firmware_load; + rte_rawdev_firmware_status_get; + rte_rawdev_firmware_unload; + rte_rawdev_firmware_version_get; + rte_rawdev_get_attr; + rte_rawdev_get_dev_id; + rte_rawdev_info_get; + rte_rawdev_pmd_allocate; + rte_rawdev_pmd_release; + rte_rawdev_queue_conf_get; + rte_rawdev_queue_setup; + rte_rawdev_queue_release; + rte_rawdev_reset; + rte_rawdev_selftest; + rte_rawdev_set_attr; + rte_rawdev_socket_id; + rte_rawdev_start; + rte_rawdev_stop; + rte_rawdev_xstats_by_name_get; + rte_rawdev_xstats_get; + rte_rawdev_xstats_names_get; + rte_rawdev_xstats_reset; + rte_rawdevs; + + local: *; +}; |