1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017-2018 Intel Corporation
5 #ifndef _RTE_COMPRESSDEV_INTERNAL_H_
6 #define _RTE_COMPRESSDEV_INTERNAL_H_
8 /* rte_compressdev_internal.h
9 * This file holds Compressdev private data structures.
15 #define RTE_COMPRESSDEV_NAME_MAX_LEN (64)
16 /**< Max length of name of comp PMD */
19 extern int compressdev_logtype;
20 #define COMPRESSDEV_LOG(level, fmt, args...) \
21 rte_log(RTE_LOG_ ## level, compressdev_logtype, "%s(): "fmt "\n", \
25 * Dequeue processed packets from queue pair of a device.
28 * The queue pair from which to retrieve
29 * processed operations.
31 * The address of an array of pointers to
32 * *rte_comp_op* structures that must be
33 * large enough to store *nb_ops* pointers in it
35 * The maximum number of operations to dequeue
37 * - The number of operations actually dequeued, which is the number
38 * of pointers to *rte_comp_op* structures effectively supplied to the
41 typedef uint16_t (*compressdev_dequeue_pkt_burst_t)(void *qp,
42 struct rte_comp_op **ops, uint16_t nb_ops);
45 * Enqueue a burst of operations for processing.
48 * The queue pair on which operations
49 * are to be enqueued for processing
51 * The address of an array of *nb_ops* pointers
52 * to *rte_comp_op* structures which contain
53 * the operations to be processed
55 * The number of operations to process
57 * The number of operations actually enqueued on the device. The return
58 * value can be less than the value of the *nb_ops* parameter when the
59 * comp devices queue is full or if invalid parameters are specified in
63 typedef uint16_t (*compressdev_enqueue_pkt_burst_t)(void *qp,
64 struct rte_comp_op **ops, uint16_t nb_ops);
66 /** The data structure associated with each comp device. */
67 struct rte_compressdev {
68 compressdev_dequeue_pkt_burst_t dequeue_burst;
69 /**< Pointer to PMD receive function */
70 compressdev_enqueue_pkt_burst_t enqueue_burst;
71 /**< Pointer to PMD transmit function */
73 struct rte_compressdev_data *data;
74 /**< Pointer to device data */
75 struct rte_compressdev_ops *dev_ops;
76 /**< Functions exported by PMD */
77 uint64_t feature_flags;
78 /**< Supported features */
79 struct rte_device *device;
80 /**< Backing device */
84 /**< Flag indicating the device is attached */
85 } __rte_cache_aligned;
89 * The data part, with no function pointers, associated with each device.
91 * This structure is safe to place in shared memory to be common among
92 * different processes in a multi-process configuration.
94 struct rte_compressdev_data {
96 /**< Compress device identifier */
98 /**< Socket identifier where memory is allocated */
99 char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
100 /**< Unique identifier name */
103 uint8_t dev_started : 1;
104 /**< Device state: STARTED(1)/STOPPED(0) */
107 /**< Array of pointers to queue pairs. */
108 uint16_t nb_queue_pairs;
109 /**< Number of device queue pairs */
112 /**< PMD-specific private data */
113 } __rte_cache_aligned;