1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016 Cavium, Inc
5 #ifndef _RTE_EVENTDEV_PMD_H_
6 #define _RTE_EVENTDEV_PMD_H_
12 * These API are from event PMD only and user applications should not call
22 #include <rte_common.h>
23 #include <rte_config.h>
26 #include <rte_malloc.h>
28 #include "rte_eventdev.h"
31 #define RTE_EDEV_LOG_ERR(...) \
32 RTE_LOG(ERR, EVENTDEV, \
33 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
34 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
36 #ifdef RTE_LIBRTE_EVENTDEV_DEBUG
37 #define RTE_EDEV_LOG_DEBUG(...) \
38 RTE_LOG(DEBUG, EVENTDEV, \
39 RTE_FMT("%s() line %u: " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
40 __func__, __LINE__, RTE_FMT_TAIL(__VA_ARGS__,)))
42 #define RTE_EDEV_LOG_DEBUG(...) (void)0
45 /* Macros to check for valid device */
46 #define RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, retval) do { \
47 if (!rte_event_pmd_is_valid_dev((dev_id))) { \
48 RTE_EDEV_LOG_ERR("Invalid dev_id=%d\n", dev_id); \
53 #define RTE_EVENTDEV_VALID_DEVID_OR_RET(dev_id) do { \
54 if (!rte_event_pmd_is_valid_dev((dev_id))) { \
55 RTE_EDEV_LOG_ERR("Invalid dev_id=%d\n", dev_id); \
60 #define RTE_EVENT_ETH_RX_ADAPTER_SW_CAP \
61 ((RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID) | \
62 (RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ))
64 /**< Ethernet Rx adapter cap to return If the packet transfers from
65 * the ethdev to eventdev use a SW service function
68 #define RTE_EVENTDEV_DETACHED (0)
69 #define RTE_EVENTDEV_ATTACHED (1)
73 /** Global structure used for maintaining state of allocated event devices */
74 struct rte_eventdev_global {
75 uint8_t nb_devs; /**< Number of devices found */
78 extern struct rte_eventdev_global *rte_eventdev_globals;
79 /** Pointer to global event devices data structure. */
80 extern struct rte_eventdev *rte_eventdevs;
81 /** The pool of rte_eventdev structures. */
84 * Get the rte_eventdev structure device pointer for the named device.
87 * device name to select the device structure.
90 * - The rte_eventdev structure pointer for the given device ID.
92 static inline struct rte_eventdev *
93 rte_event_pmd_get_named_dev(const char *name)
95 struct rte_eventdev *dev;
101 for (i = 0; i < RTE_EVENT_MAX_DEVS; i++) {
102 dev = &rte_eventdevs[i];
103 if ((dev->attached == RTE_EVENTDEV_ATTACHED) &&
104 (strcmp(dev->data->name, name) == 0))
112 * Validate if the event device index is valid attached event device.
115 * Event device index.
118 * - If the device index is valid (1) or not (0).
120 static inline unsigned
121 rte_event_pmd_is_valid_dev(uint8_t dev_id)
123 struct rte_eventdev *dev;
125 if (dev_id >= RTE_EVENT_MAX_DEVS)
128 dev = &rte_eventdevs[dev_id];
129 if (dev->attached != RTE_EVENTDEV_ATTACHED)
136 * Definitions of all functions exported by a driver through the
137 * the generic structure of type *event_dev_ops* supplied in the
138 * *rte_eventdev* structure associated with a device.
142 * Get device information of a device.
145 * Event device pointer
147 * Event device information structure
150 * Returns 0 on success
152 typedef void (*eventdev_info_get_t)(struct rte_eventdev *dev,
153 struct rte_event_dev_info *dev_info);
156 * Configure a device.
159 * Event device pointer
162 * Returns 0 on success
164 typedef int (*eventdev_configure_t)(const struct rte_eventdev *dev);
167 * Start a configured device.
170 * Event device pointer
173 * Returns 0 on success
175 typedef int (*eventdev_start_t)(struct rte_eventdev *dev);
178 * Stop a configured device.
181 * Event device pointer
183 typedef void (*eventdev_stop_t)(struct rte_eventdev *dev);
186 * Close a configured device.
189 * Event device pointer
193 * - (-EAGAIN) if can't close as device is busy
195 typedef int (*eventdev_close_t)(struct rte_eventdev *dev);
198 * Retrieve the default event queue configuration.
201 * Event device pointer
204 * @param[out] queue_conf
205 * Event queue configuration structure
208 typedef void (*eventdev_queue_default_conf_get_t)(struct rte_eventdev *dev,
209 uint8_t queue_id, struct rte_event_queue_conf *queue_conf);
212 * Setup an event queue.
215 * Event device pointer
219 * Event queue configuration structure
222 * Returns 0 on success.
224 typedef int (*eventdev_queue_setup_t)(struct rte_eventdev *dev,
226 const struct rte_event_queue_conf *queue_conf);
229 * Release resources allocated by given event queue.
232 * Event device pointer
237 typedef void (*eventdev_queue_release_t)(struct rte_eventdev *dev,
241 * Retrieve the default event port configuration.
244 * Event device pointer
247 * @param[out] port_conf
248 * Event port configuration structure
251 typedef void (*eventdev_port_default_conf_get_t)(struct rte_eventdev *dev,
252 uint8_t port_id, struct rte_event_port_conf *port_conf);
255 * Setup an event port.
258 * Event device pointer
262 * Event port configuration structure
265 * Returns 0 on success.
267 typedef int (*eventdev_port_setup_t)(struct rte_eventdev *dev,
269 const struct rte_event_port_conf *port_conf);
272 * Release memory resources allocated by given event port.
278 typedef void (*eventdev_port_release_t)(void *port);
281 * Link multiple source event queues to destination event port.
284 * Event device pointer
288 * Points to an array of *nb_links* event queues to be linked
291 * Points to an array of *nb_links* service priorities associated with each
292 * event queue link to event port.
294 * The number of links to establish
297 * Returns 0 on success.
300 typedef int (*eventdev_port_link_t)(struct rte_eventdev *dev, void *port,
301 const uint8_t queues[], const uint8_t priorities[],
305 * Unlink multiple source event queues from destination event port.
308 * Event device pointer
312 * An array of *nb_unlinks* event queues to be unlinked from the event port.
314 * The number of unlinks to establish
317 * Returns 0 on success.
320 typedef int (*eventdev_port_unlink_t)(struct rte_eventdev *dev, void *port,
321 uint8_t queues[], uint16_t nb_unlinks);
324 * Converts nanoseconds to *timeout_ticks* value for rte_event_dequeue()
327 * Event device pointer
329 * Wait time in nanosecond
330 * @param[out] timeout_ticks
331 * Value for the *timeout_ticks* parameter in rte_event_dequeue() function
334 * Returns 0 on success.
337 typedef int (*eventdev_dequeue_timeout_ticks_t)(struct rte_eventdev *dev,
338 uint64_t ns, uint64_t *timeout_ticks);
341 * Dump internal information
344 * Event device pointer
346 * A pointer to a file for output
349 typedef void (*eventdev_dump_t)(struct rte_eventdev *dev, FILE *f);
352 * Retrieve a set of statistics from device
355 * Event device pointer
357 * The stat ids to retrieve
359 * The returned stat values
361 * The number of id values and entries in the values array
363 * The number of stat values successfully filled into the values array
365 typedef int (*eventdev_xstats_get_t)(const struct rte_eventdev *dev,
366 enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id,
367 const unsigned int ids[], uint64_t values[], unsigned int n);
370 * Resets the statistic values in xstats for the device, based on mode.
372 typedef int (*eventdev_xstats_reset_t)(struct rte_eventdev *dev,
373 enum rte_event_dev_xstats_mode mode,
374 int16_t queue_port_id,
375 const uint32_t ids[],
379 * Get names of extended stats of an event device
382 * Event device pointer
383 * @param xstats_names
384 * Array of name values to be filled in
386 * Number of values in the xstats_names array
388 * When size >= the number of stats, return the number of stat values filled
390 * When size < the number of available stats, return the number of stats
391 * values, and do not fill in any data into xstats_names.
393 typedef int (*eventdev_xstats_get_names_t)(const struct rte_eventdev *dev,
394 enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id,
395 struct rte_event_dev_xstats_name *xstats_names,
396 unsigned int *ids, unsigned int size);
399 * Get value of one stats and optionally return its id
402 * Event device pointer
404 * The name of the stat to retrieve
406 * Pointer to an unsigned int where we store the stat-id for future reference.
407 * This pointer may be null if the id is not required.
409 * The value of the stat, or (uint64_t)-1 if the stat is not found.
410 * If the stat is not found, the id value will be returned as (unsigned)-1,
411 * if id pointer is non-NULL
413 typedef uint64_t (*eventdev_xstats_get_by_name)(const struct rte_eventdev *dev,
414 const char *name, unsigned int *id);
418 * Retrieve the event device's ethdev Rx adapter capabilities for the
419 * specified ethernet port
422 * Event device pointer
425 * Ethernet device pointer
428 * A pointer to memory filled with Rx event adapter capabilities.
431 * - 0: Success, driver provides Rx event adapter capabilities for the
433 * - <0: Error code returned by the driver function.
436 typedef int (*eventdev_eth_rx_adapter_caps_get_t)
437 (const struct rte_eventdev *dev,
438 const struct rte_eth_dev *eth_dev,
441 struct rte_event_eth_rx_adapter_queue_conf *queue_conf;
444 * Add ethernet Rx queues to event device. This callback is invoked if
445 * the caps returned from rte_eventdev_eth_rx_adapter_caps_get(, eth_port_id)
446 * has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set.
449 * Event device pointer
452 * Ethernet device pointer
455 * Ethernet device receive queue index
458 * Additional configuration structure
461 * - 0: Success, ethernet receive queue added successfully.
462 * - <0: Error code returned by the driver function.
465 typedef int (*eventdev_eth_rx_adapter_queue_add_t)(
466 const struct rte_eventdev *dev,
467 const struct rte_eth_dev *eth_dev,
469 const struct rte_event_eth_rx_adapter_queue_conf *queue_conf);
472 * Delete ethernet Rx queues from event device. This callback is invoked if
473 * the caps returned from eventdev_eth_rx_adapter_caps_get(, eth_port_id)
474 * has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set.
477 * Event device pointer
480 * Ethernet device pointer
483 * Ethernet device receive queue index
486 * - 0: Success, ethernet receive queue deleted successfully.
487 * - <0: Error code returned by the driver function.
490 typedef int (*eventdev_eth_rx_adapter_queue_del_t)
491 (const struct rte_eventdev *dev,
492 const struct rte_eth_dev *eth_dev,
493 int32_t rx_queue_id);
496 * Start ethernet Rx adapter. This callback is invoked if
497 * the caps returned from eventdev_eth_rx_adapter_caps_get(.., eth_port_id)
498 * has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set and Rx queues
499 * from eth_port_id have been added to the event device.
502 * Event device pointer
505 * Ethernet device pointer
508 * - 0: Success, ethernet Rx adapter started successfully.
509 * - <0: Error code returned by the driver function.
511 typedef int (*eventdev_eth_rx_adapter_start_t)
512 (const struct rte_eventdev *dev,
513 const struct rte_eth_dev *eth_dev);
516 * Stop ethernet Rx adapter. This callback is invoked if
517 * the caps returned from eventdev_eth_rx_adapter_caps_get(..,eth_port_id)
518 * has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set and Rx queues
519 * from eth_port_id have been added to the event device.
522 * Event device pointer
525 * Ethernet device pointer
528 * - 0: Success, ethernet Rx adapter stopped successfully.
529 * - <0: Error code returned by the driver function.
531 typedef int (*eventdev_eth_rx_adapter_stop_t)
532 (const struct rte_eventdev *dev,
533 const struct rte_eth_dev *eth_dev);
535 struct rte_event_eth_rx_adapter_stats *stats;
538 * Retrieve ethernet Rx adapter statistics.
541 * Event device pointer
544 * Ethernet device pointer
547 * Pointer to stats structure
550 * Return 0 on success.
553 typedef int (*eventdev_eth_rx_adapter_stats_get)
554 (const struct rte_eventdev *dev,
555 const struct rte_eth_dev *eth_dev,
556 struct rte_event_eth_rx_adapter_stats *stats);
558 * Reset ethernet Rx adapter statistics.
561 * Event device pointer
564 * Ethernet device pointer
567 * Return 0 on success.
569 typedef int (*eventdev_eth_rx_adapter_stats_reset)
570 (const struct rte_eventdev *dev,
571 const struct rte_eth_dev *eth_dev);
573 /** Event device operations function pointer table */
574 struct rte_eventdev_ops {
575 eventdev_info_get_t dev_infos_get; /**< Get device info. */
576 eventdev_configure_t dev_configure; /**< Configure device. */
577 eventdev_start_t dev_start; /**< Start device. */
578 eventdev_stop_t dev_stop; /**< Stop device. */
579 eventdev_close_t dev_close; /**< Close device. */
581 eventdev_queue_default_conf_get_t queue_def_conf;
582 /**< Get default queue configuration. */
583 eventdev_queue_setup_t queue_setup;
584 /**< Set up an event queue. */
585 eventdev_queue_release_t queue_release;
586 /**< Release an event queue. */
588 eventdev_port_default_conf_get_t port_def_conf;
589 /**< Get default port configuration. */
590 eventdev_port_setup_t port_setup;
591 /**< Set up an event port. */
592 eventdev_port_release_t port_release;
593 /**< Release an event port. */
595 eventdev_port_link_t port_link;
596 /**< Link event queues to an event port. */
597 eventdev_port_unlink_t port_unlink;
598 /**< Unlink event queues from an event port. */
599 eventdev_dequeue_timeout_ticks_t timeout_ticks;
600 /**< Converts ns to *timeout_ticks* value for rte_event_dequeue() */
601 eventdev_dump_t dump;
602 /* Dump internal information */
604 eventdev_xstats_get_t xstats_get;
605 /**< Get extended device statistics. */
606 eventdev_xstats_get_names_t xstats_get_names;
607 /**< Get names of extended stats. */
608 eventdev_xstats_get_by_name xstats_get_by_name;
609 /**< Get one value by name. */
610 eventdev_xstats_reset_t xstats_reset;
611 /**< Reset the statistics values in xstats. */
613 eventdev_eth_rx_adapter_caps_get_t eth_rx_adapter_caps_get;
614 /**< Get ethernet Rx adapter capabilities */
615 eventdev_eth_rx_adapter_queue_add_t eth_rx_adapter_queue_add;
616 /**< Add Rx queues to ethernet Rx adapter */
617 eventdev_eth_rx_adapter_queue_del_t eth_rx_adapter_queue_del;
618 /**< Delete Rx queues from ethernet Rx adapter */
619 eventdev_eth_rx_adapter_start_t eth_rx_adapter_start;
620 /**< Start ethernet Rx adapter */
621 eventdev_eth_rx_adapter_stop_t eth_rx_adapter_stop;
622 /**< Stop ethernet Rx adapter */
623 eventdev_eth_rx_adapter_stats_get eth_rx_adapter_stats_get;
624 /**< Get ethernet Rx stats */
625 eventdev_eth_rx_adapter_stats_reset eth_rx_adapter_stats_reset;
626 /**< Reset ethernet Rx stats */
630 * Allocates a new eventdev slot for an event device and returns the pointer
631 * to that slot for the driver to use.
634 * Unique identifier name for each device
636 * Socket to allocate resources on.
638 * - Slot in the rte_dev_devices array for a new device;
640 struct rte_eventdev *
641 rte_event_pmd_allocate(const char *name, int socket_id);
644 * Release the specified eventdev device.
647 * The *eventdev* pointer is the address of the *rte_eventdev* structure.
649 * - 0 on success, negative on error
652 rte_event_pmd_release(struct rte_eventdev *eventdev);
658 #endif /* _RTE_EVENTDEV_PMD_H_ */