1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
6 #include <rte_common.h>
7 #include <rte_compressdev_pmd.h>
8 #include <rte_malloc.h>
10 #include "isal_compress_pmd_private.h"
12 static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
14 .algo = RTE_COMP_ALGO_DEFLATE,
15 .comp_feature_flags = RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
16 RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
17 RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
18 RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
19 RTE_COMP_FF_HUFFMAN_FIXED |
20 RTE_COMP_FF_HUFFMAN_DYNAMIC,
27 RTE_COMP_END_OF_CAPABILITIES_LIST()
30 /** Configure device */
32 isal_comp_pmd_config(struct rte_compressdev *dev,
33 struct rte_compressdev_config *config)
37 char mp_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
38 unsigned int elt_size = sizeof(struct isal_priv_xform);
39 struct isal_comp_private *internals = dev->data->dev_private;
41 n = snprintf(mp_name, sizeof(mp_name), "compdev_%d_xform_mp",
43 if (n > sizeof(mp_name)) {
45 "Unable to create unique name for xform mempool");
49 internals->priv_xform_mp = rte_mempool_lookup(mp_name);
51 if (internals->priv_xform_mp != NULL) {
52 if (((internals->priv_xform_mp)->elt_size != elt_size) ||
53 ((internals->priv_xform_mp)->size <
54 config->max_nb_priv_xforms)) {
56 ISAL_PMD_LOG(ERR, "%s mempool already exists with different"
57 " initialization parameters", mp_name);
58 internals->priv_xform_mp = NULL;
61 } else { /* First time configuration */
62 internals->priv_xform_mp = rte_mempool_create(
63 mp_name, /* mempool name */
64 /* number of elements*/
65 config->max_nb_priv_xforms,
66 elt_size, /* element size*/
68 0, /* private data size */
69 NULL, /* obj initialization constructor */
70 NULL, /* obj initialization constructor arg */
71 NULL, /**< obj constructor*/
72 NULL, /* obj constructor arg */
73 config->socket_id, /* socket id */
77 if (internals->priv_xform_mp == NULL) {
78 ISAL_PMD_LOG(ERR, "%s mempool allocation failed", mp_name);
82 dev->data->dev_private = internals;
89 isal_comp_pmd_start(__rte_unused struct rte_compressdev *dev)
96 isal_comp_pmd_stop(__rte_unused struct rte_compressdev *dev)
102 isal_comp_pmd_close(struct rte_compressdev *dev)
104 /* Free private data */
105 struct isal_comp_private *internals = dev->data->dev_private;
107 rte_mempool_free(internals->priv_xform_mp);
111 /** Get device statistics */
113 isal_comp_pmd_stats_get(struct rte_compressdev *dev,
114 struct rte_compressdev_stats *stats)
118 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
119 struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
121 stats->enqueued_count += qp->qp_stats.enqueued_count;
122 stats->dequeued_count += qp->qp_stats.dequeued_count;
124 stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
125 stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
129 /** Get device info */
131 isal_comp_pmd_info_get(struct rte_compressdev *dev __rte_unused,
132 struct rte_compressdev_info *dev_info)
134 if (dev_info != NULL) {
135 dev_info->capabilities = isal_pmd_capabilities;
137 /* Check CPU for supported vector instruction and set
140 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
141 dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX512;
142 else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
143 dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX2;
144 else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
145 dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX;
147 dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_SSE;
151 /** Reset device statistics */
153 isal_comp_pmd_stats_reset(struct rte_compressdev *dev)
157 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
158 struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
159 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
163 /** Release queue pair */
165 isal_comp_pmd_qp_release(struct rte_compressdev *dev, uint16_t qp_id)
167 struct isal_comp_qp *qp = dev->data->queue_pairs[qp_id];
172 if (qp->stream != NULL)
173 rte_free(qp->stream);
175 if (qp->stream->level_buf != NULL)
176 rte_free(qp->stream->level_buf);
178 if (qp->state != NULL)
181 if (qp->processed_pkts != NULL)
182 rte_ring_free(qp->processed_pkts);
185 dev->data->queue_pairs[qp_id] = NULL;
190 /** Create a ring to place process packets on */
191 static struct rte_ring *
192 isal_comp_pmd_qp_create_processed_pkts_ring(struct isal_comp_qp *qp,
193 unsigned int ring_size, int socket_id)
197 r = rte_ring_lookup(qp->name);
199 if (rte_ring_get_size(r) >= ring_size) {
201 "Reusing existing ring %s for processed packets",
207 "Unable to reuse existing ring %s"
208 " for processed packets",
213 return rte_ring_create(qp->name, ring_size, socket_id,
214 RING_F_SP_ENQ | RING_F_SC_DEQ);
217 /** set a unique name for the queue pair based on its name, dev_id and qp_id */
219 isal_comp_pmd_qp_set_unique_name(struct rte_compressdev *dev,
220 struct isal_comp_qp *qp)
222 unsigned int n = snprintf(qp->name, sizeof(qp->name),
223 "isal_compression_pmd_%u_qp_%u",
224 dev->data->dev_id, qp->id);
226 if (n >= sizeof(qp->name))
232 /* Setup a queue pair */
234 isal_comp_pmd_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
235 uint32_t max_inflight_ops, int socket_id)
237 struct isal_comp_qp *qp = NULL;
240 /* Free memory prior to re-allocation if needed. */
241 if (dev->data->queue_pairs[qp_id] != NULL)
242 isal_comp_pmd_qp_release(dev, qp_id);
244 /* Allocate the queue pair data structure. */
245 qp = rte_zmalloc_socket("Isa-l compression PMD Queue Pair", sizeof(*qp),
246 RTE_CACHE_LINE_SIZE, socket_id);
248 ISAL_PMD_LOG(ERR, "Failed to allocate queue pair memory");
252 /* Initialize memory for compression stream structure */
253 qp->stream = rte_zmalloc_socket("Isa-l compression stream ",
254 sizeof(struct isal_zstream), RTE_CACHE_LINE_SIZE,
257 /* Initialize memory for compression level buffer */
258 qp->stream->level_buf = rte_zmalloc_socket("Isa-l compression lev_buf",
259 ISAL_DEF_LVL3_DEFAULT, RTE_CACHE_LINE_SIZE,
262 /* Initialize memory for decompression state structure */
263 qp->state = rte_zmalloc_socket("Isa-l decompression state",
264 sizeof(struct inflate_state), RTE_CACHE_LINE_SIZE,
268 dev->data->queue_pairs[qp_id] = qp;
270 retval = isal_comp_pmd_qp_set_unique_name(dev, qp);
272 ISAL_PMD_LOG(ERR, "Failed to create unique name for isal "
273 "compression device");
274 goto qp_setup_cleanup;
277 qp->processed_pkts = isal_comp_pmd_qp_create_processed_pkts_ring(qp,
278 max_inflight_ops, socket_id);
279 if (qp->processed_pkts == NULL) {
280 ISAL_PMD_LOG(ERR, "Failed to create unique name for isal "
281 "compression device");
282 goto qp_setup_cleanup;
285 qp->num_free_elements = rte_ring_free_count(qp->processed_pkts);
287 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
297 /** Set private xform data*/
299 isal_comp_pmd_priv_xform_create(struct rte_compressdev *dev,
300 const struct rte_comp_xform *xform, void **priv_xform)
303 struct isal_comp_private *internals = dev->data->dev_private;
306 ISAL_PMD_LOG(ERR, "Invalid Xform struct");
310 if (rte_mempool_get(internals->priv_xform_mp, priv_xform)) {
312 "Couldn't get object from private xform mempool");
316 ret = isal_comp_set_priv_xform_parameters(*priv_xform, xform);
318 ISAL_PMD_LOG(ERR, "Failed to configure private xform parameters");
320 /* Return private xform to mempool */
321 rte_mempool_put(internals->priv_xform_mp, priv_xform);
327 /** Clear memory of the private xform so it doesn't leave key material behind */
329 isal_comp_pmd_priv_xform_free(struct rte_compressdev *dev, void *priv_xform)
331 struct isal_comp_private *internals = dev->data->dev_private;
333 /* Zero out the whole structure */
335 memset(priv_xform, 0, sizeof(struct isal_priv_xform));
336 rte_mempool_put(internals->priv_xform_mp, priv_xform);
341 struct rte_compressdev_ops isal_pmd_ops = {
342 .dev_configure = isal_comp_pmd_config,
343 .dev_start = isal_comp_pmd_start,
344 .dev_stop = isal_comp_pmd_stop,
345 .dev_close = isal_comp_pmd_close,
347 .stats_get = isal_comp_pmd_stats_get,
348 .stats_reset = isal_comp_pmd_stats_reset,
350 .dev_infos_get = isal_comp_pmd_info_get,
352 .queue_pair_setup = isal_comp_pmd_qp_setup,
353 .queue_pair_release = isal_comp_pmd_qp_release,
355 .private_xform_create = isal_comp_pmd_priv_xform_create,
356 .private_xform_free = isal_comp_pmd_priv_xform_free,
359 struct rte_compressdev_ops *isal_compress_pmd_ops = &isal_pmd_ops;