1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017-2018 Intel Corporation
6 #include "rte_compressdev.h"
7 #include "rte_compressdev_internal.h"
9 const char * __rte_experimental
10 rte_comp_get_feature_name(uint64_t flag)
13 case RTE_COMP_FF_STATEFUL_COMPRESSION:
14 return "STATEFUL_COMPRESSION";
15 case RTE_COMP_FF_STATEFUL_DECOMPRESSION:
16 return "STATEFUL_DECOMPRESSION";
17 case RTE_COMP_FF_MBUF_SCATTER_GATHER:
18 return "MBUF_SCATTER_GATHER";
19 case RTE_COMP_FF_MULTI_PKT_CHECKSUM:
20 return "MULTI_PKT_CHECKSUM";
21 case RTE_COMP_FF_ADLER32_CHECKSUM:
22 return "ADLER32_CHECKSUM";
23 case RTE_COMP_FF_CRC32_CHECKSUM:
24 return "CRC32_CHECKSUM";
25 case RTE_COMP_FF_CRC32_ADLER32_CHECKSUM:
26 return "CRC32_ADLER32_CHECKSUM";
27 case RTE_COMP_FF_NONCOMPRESSED_BLOCKS:
28 return "NONCOMPRESSED_BLOCKS";
29 case RTE_COMP_FF_SHA1_HASH:
31 case RTE_COMP_FF_SHA2_SHA256_HASH:
32 return "SHA2_SHA256_HASH";
33 case RTE_COMP_FF_SHAREABLE_PRIV_XFORM:
34 return "SHAREABLE_PRIV_XFORM";
41 * Reset the fields of an operation to their default values.
43 * @note The private data associated with the operation is not zeroed.
46 * The operation to be reset
49 rte_comp_op_reset(struct rte_comp_op *op)
51 struct rte_mempool *tmp_mp = op->mempool;
52 rte_iova_t tmp_iova_addr = op->iova_addr;
54 memset(op, 0, sizeof(struct rte_comp_op));
55 op->status = RTE_COMP_OP_STATUS_NOT_PROCESSED;
56 op->iova_addr = tmp_iova_addr;
61 * Private data structure belonging to an operation pool.
63 struct rte_comp_op_pool_private {
65 /**< Size of private user data with each operation. */
69 * Bulk allocate raw element from mempool and return as comp operations
72 * Compress operation mempool
74 * Array to place allocated operations
76 * Number of operations to allocate
79 * - -ENOENT: Not enough entries in the mempool; no ops are retrieved.
82 rte_comp_op_raw_bulk_alloc(struct rte_mempool *mempool,
83 struct rte_comp_op **ops, uint16_t nb_ops)
85 if (rte_mempool_get_bulk(mempool, (void **)ops, nb_ops) == 0)
91 /** Initialise rte_comp_op mempool element */
93 rte_comp_op_init(struct rte_mempool *mempool,
94 __rte_unused void *opaque_arg,
96 __rte_unused unsigned int i)
98 struct rte_comp_op *op = _op_data;
100 memset(_op_data, 0, mempool->elt_size);
102 op->status = RTE_COMP_OP_STATUS_NOT_PROCESSED;
103 op->iova_addr = rte_mem_virt2iova(_op_data);
104 op->mempool = mempool;
107 struct rte_mempool * __rte_experimental
108 rte_comp_op_pool_create(const char *name,
109 unsigned int nb_elts, unsigned int cache_size,
110 uint16_t user_size, int socket_id)
112 struct rte_comp_op_pool_private *priv;
114 unsigned int elt_size = sizeof(struct rte_comp_op) + user_size;
116 /* lookup mempool in case already allocated */
117 struct rte_mempool *mp = rte_mempool_lookup(name);
120 priv = (struct rte_comp_op_pool_private *)
121 rte_mempool_get_priv(mp);
123 if (mp->elt_size != elt_size ||
124 mp->cache_size < cache_size ||
125 mp->size < nb_elts ||
126 priv->user_size < user_size) {
129 "Mempool %s already exists but with incompatible parameters",
136 mp = rte_mempool_create(
141 sizeof(struct rte_comp_op_pool_private),
150 COMPRESSDEV_LOG(ERR, "Failed to create mempool %s", name);
154 priv = (struct rte_comp_op_pool_private *)
155 rte_mempool_get_priv(mp);
157 priv->user_size = user_size;
162 struct rte_comp_op * __rte_experimental
163 rte_comp_op_alloc(struct rte_mempool *mempool)
165 struct rte_comp_op *op = NULL;
168 retval = rte_comp_op_raw_bulk_alloc(mempool, &op, 1);
169 if (unlikely(retval < 0))
172 rte_comp_op_reset(op);
177 int __rte_experimental
178 rte_comp_op_bulk_alloc(struct rte_mempool *mempool,
179 struct rte_comp_op **ops, uint16_t nb_ops)
184 ret = rte_comp_op_raw_bulk_alloc(mempool, ops, nb_ops);
185 if (unlikely(ret < nb_ops))
188 for (i = 0; i < nb_ops; i++)
189 rte_comp_op_reset(ops[i]);
195 * free operation structure
196 * If operation has been allocate from a rte_mempool, then the operation will
197 * be returned to the mempool.
202 void __rte_experimental
203 rte_comp_op_free(struct rte_comp_op *op)
205 if (op != NULL && op->mempool != NULL)
206 rte_mempool_put(op->mempool, op);