1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2019 Intel Corporation
5 #include <rte_malloc.h>
8 #include "qat_comp_pmd.h"
10 #define QAT_PMD_COMP_SGL_DEF_SEGMENTS 16
12 struct stream_create_info {
13 struct qat_comp_dev_private *comp_dev;
18 static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
19 {/* COMPRESSION - deflate */
20 .algo = RTE_COMP_ALGO_DEFLATE,
21 .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM |
22 RTE_COMP_FF_CRC32_CHECKSUM |
23 RTE_COMP_FF_ADLER32_CHECKSUM |
24 RTE_COMP_FF_CRC32_ADLER32_CHECKSUM |
25 RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
26 RTE_COMP_FF_HUFFMAN_FIXED |
27 RTE_COMP_FF_HUFFMAN_DYNAMIC |
28 RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
29 RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
30 RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
31 RTE_COMP_FF_STATEFUL_DECOMPRESSION,
32 .window_size = {.min = 15, .max = 15, .increment = 0} },
33 {RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
36 qat_comp_stats_get(struct rte_compressdev *dev,
37 struct rte_compressdev_stats *stats)
39 struct qat_common_stats qat_stats = {0};
40 struct qat_comp_dev_private *qat_priv;
42 if (stats == NULL || dev == NULL) {
43 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
46 qat_priv = dev->data->dev_private;
48 qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_COMPRESSION);
49 stats->enqueued_count = qat_stats.enqueued_count;
50 stats->dequeued_count = qat_stats.dequeued_count;
51 stats->enqueue_err_count = qat_stats.enqueue_err_count;
52 stats->dequeue_err_count = qat_stats.dequeue_err_count;
56 qat_comp_stats_reset(struct rte_compressdev *dev)
58 struct qat_comp_dev_private *qat_priv;
61 QAT_LOG(ERR, "invalid compressdev ptr %p", dev);
64 qat_priv = dev->data->dev_private;
66 qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
71 qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id)
73 struct qat_comp_dev_private *qat_private = dev->data->dev_private;
74 struct qat_qp **qp_addr =
75 (struct qat_qp **)&(dev->data->queue_pairs[queue_pair_id]);
76 struct qat_qp *qp = (struct qat_qp *)*qp_addr;
77 enum qat_device_gen qat_dev_gen = qat_private->qat_dev->qat_dev_gen;
80 QAT_LOG(DEBUG, "Release comp qp %u on device %d",
81 queue_pair_id, dev->data->dev_id);
83 qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][queue_pair_id]
87 for (i = 0; i < qp->nb_descriptors; i++) {
88 struct qat_comp_op_cookie *cookie = qp->op_cookies[i];
90 rte_free(cookie->qat_sgl_src_d);
91 rte_free(cookie->qat_sgl_dst_d);
94 return qat_qp_release(qat_dev_gen, (struct qat_qp **)
95 &(dev->data->queue_pairs[queue_pair_id]));
99 qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
100 uint32_t max_inflight_ops, int socket_id)
105 struct qat_qp_config qat_qp_conf;
107 struct qat_qp **qp_addr =
108 (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
109 struct qat_comp_dev_private *qat_private = dev->data->dev_private;
110 struct qat_pci_device *qat_dev = qat_private->qat_dev;
111 const struct qat_qp_hw_data *comp_hw_qps =
112 qat_gen_config[qat_private->qat_dev->qat_dev_gen]
113 .qp_hw_data[QAT_SERVICE_COMPRESSION];
114 const struct qat_qp_hw_data *qp_hw_data = comp_hw_qps + qp_id;
116 /* If qp is already in use free ring memory and qp metadata. */
117 if (*qp_addr != NULL) {
118 ret = qat_comp_qp_release(dev, qp_id);
122 if (qp_id >= qat_qps_per_service(qat_dev,
123 QAT_SERVICE_COMPRESSION)) {
124 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
128 qat_qp_conf.hw = qp_hw_data;
129 qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie);
130 qat_qp_conf.nb_descriptors = max_inflight_ops;
131 qat_qp_conf.socket_id = socket_id;
132 qat_qp_conf.service_str = "comp";
134 ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
138 /* store a link to the qp in the qat_pci_device */
139 qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id]
142 qp = (struct qat_qp *)*qp_addr;
143 qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold;
145 for (i = 0; i < qp->nb_descriptors; i++) {
147 struct qat_comp_op_cookie *cookie =
151 cookie->cookie_index = i;
153 cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL,
154 sizeof(struct qat_sgl) +
155 sizeof(struct qat_flat_buf) *
156 QAT_PMD_COMP_SGL_DEF_SEGMENTS,
157 64, dev->data->socket_id);
159 cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL,
160 sizeof(struct qat_sgl) +
161 sizeof(struct qat_flat_buf) *
162 QAT_PMD_COMP_SGL_DEF_SEGMENTS,
163 64, dev->data->socket_id);
165 if (cookie->qat_sgl_src_d == NULL ||
166 cookie->qat_sgl_dst_d == NULL) {
167 QAT_LOG(ERR, "Can't allocate SGL"
169 qat_private->qat_dev->name);
173 cookie->qat_sgl_src_phys_addr =
174 rte_malloc_virt2iova(cookie->qat_sgl_src_d);
176 cookie->qat_sgl_dst_phys_addr =
177 rte_malloc_virt2iova(cookie->qat_sgl_dst_d);
179 cookie->dst_nb_elems = cookie->src_nb_elems =
180 QAT_PMD_COMP_SGL_DEF_SEGMENTS;
182 cookie->socket_id = dev->data->socket_id;
191 #define QAT_IM_BUFFER_DEBUG 0
192 static const struct rte_memzone *
193 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
196 char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE];
197 const struct rte_memzone *memzone;
198 uint8_t *mz_start = NULL;
199 rte_iova_t mz_start_phys = 0;
200 struct array_of_ptrs *array_of_pointers;
201 int size_of_ptr_array;
203 uint32_t offset_of_flat_buffs;
205 int num_im_sgls = qat_gen_config[
206 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required;
208 QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls",
209 comp_dev->qat_dev->name, num_im_sgls);
210 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
211 "%s_inter_buff", comp_dev->qat_dev->name);
212 memzone = rte_memzone_lookup(inter_buff_mz_name);
213 if (memzone != NULL) {
214 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already");
218 /* Create multiple memzones to hold intermediate buffers and associated
219 * meta-data needed by the firmware.
220 * The first memzone contains:
221 * - a list of num_im_sgls physical pointers to sgls
222 * All other memzones contain:
223 * - the sgl structure, pointing to QAT_NUM_BUFS_IN_IM_SGL flat buffers
224 * - the flat buffers: QAT_NUM_BUFS_IN_IM_SGL buffers,
226 * num_im_sgls depends on the hardware generation of the device
227 * buff_size comes from the user via the config file
230 size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t);
231 offset_of_flat_buffs = sizeof(struct qat_inter_sgl);
232 full_size = offset_of_flat_buffs +
233 buff_size * QAT_NUM_BUFS_IN_IM_SGL;
235 memzone = rte_memzone_reserve_aligned(inter_buff_mz_name,
237 comp_dev->compressdev->data->socket_id,
238 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
239 if (memzone == NULL) {
241 "Can't allocate intermediate buffers for device %s",
242 comp_dev->qat_dev->name);
246 mz_start = (uint8_t *)memzone->addr;
247 mz_start_phys = memzone->iova;
248 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
249 ", size required %d, size created %zu",
250 inter_buff_mz_name, mz_start, mz_start_phys,
251 size_of_ptr_array, memzone->len);
253 array_of_pointers = (struct array_of_ptrs *)mz_start;
254 for (i = 0; i < num_im_sgls; i++) {
255 const struct rte_memzone *mz;
256 struct qat_inter_sgl *sgl;
259 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
260 "%s_inter_buff_%d", comp_dev->qat_dev->name, i);
261 mz = rte_memzone_lookup(inter_buff_mz_name);
263 mz = rte_memzone_reserve_aligned(inter_buff_mz_name,
265 comp_dev->compressdev->data->socket_id,
266 RTE_MEMZONE_IOVA_CONTIG,
270 "Can't allocate intermediate buffers for device %s",
271 comp_dev->qat_dev->name);
273 snprintf(inter_buff_mz_name,
274 RTE_MEMZONE_NAMESIZE,
276 comp_dev->qat_dev->name,
280 inter_buff_mz_name));
282 rte_memzone_free(memzone);
287 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
288 ", size required %d, size created %zu",
289 inter_buff_mz_name, mz->addr, mz->iova,
292 array_of_pointers->pointer[i] = mz->iova;
294 sgl = (struct qat_inter_sgl *) mz->addr;
295 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL;
296 sgl->num_mapped_bufs = 0;
299 #if QAT_IM_BUFFER_DEBUG
300 QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers"
301 " = 0x%"PRIx64, i, array_of_pointers->pointer[i]);
302 QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl);
304 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) {
305 sgl->buffers[lb].addr =
306 mz->iova + offset_of_flat_buffs +
308 sgl->buffers[lb].len = buff_size;
309 sgl->buffers[lb].resrvd = 0;
310 #if QAT_IM_BUFFER_DEBUG
312 " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d",
313 lb, sgl->buffers[lb].addr, sgl->buffers[lb].len);
317 #if QAT_IM_BUFFER_DEBUG
318 QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:",
319 memzone->addr, size_of_ptr_array);
324 static struct rte_mempool *
325 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
326 struct rte_compressdev_config *config,
327 uint32_t num_elements)
329 char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
330 struct rte_mempool *mp;
332 snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE,
333 "%s_xforms", comp_dev->qat_dev->name);
335 QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name);
336 mp = rte_mempool_lookup(xform_pool_name);
339 QAT_LOG(DEBUG, "xformpool already created");
340 if (mp->size != num_elements) {
341 QAT_LOG(DEBUG, "xformpool wrong size - delete it");
342 rte_mempool_free(mp);
344 comp_dev->xformpool = NULL;
349 mp = rte_mempool_create(xform_pool_name,
351 qat_comp_xform_size(), 0, 0,
352 NULL, NULL, NULL, NULL, config->socket_id,
355 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
356 xform_pool_name, num_elements, qat_comp_xform_size());
364 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque,
365 void *obj, unsigned int obj_idx)
367 struct stream_create_info *info = opaque;
368 struct qat_comp_stream *stream = obj;
369 char mz_name[RTE_MEMZONE_NAMESIZE];
370 const struct rte_memzone *memzone;
371 struct qat_inter_sgl *ram_banks_desc;
373 /* find a memzone for RAM banks */
374 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks",
375 info->comp_dev->qat_dev->name, obj_idx);
376 memzone = rte_memzone_lookup(mz_name);
377 if (memzone == NULL) {
378 /* allocate a memzone for compression state and RAM banks */
379 memzone = rte_memzone_reserve_aligned(mz_name,
380 QAT_STATE_REGISTERS_MAX_SIZE
381 + sizeof(struct qat_inter_sgl)
382 + QAT_INFLATE_CONTEXT_SIZE,
384 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
385 if (memzone == NULL) {
387 "Can't allocate RAM banks for device %s, object %u",
388 info->comp_dev->qat_dev->name, obj_idx);
389 info->error = -ENOMEM;
394 /* prepare the buffer list descriptor for RAM banks */
395 ram_banks_desc = (struct qat_inter_sgl *)
396 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE);
397 ram_banks_desc->num_bufs = 1;
398 ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE;
399 ram_banks_desc->buffers[0].addr = memzone->iova
400 + QAT_STATE_REGISTERS_MAX_SIZE
401 + sizeof(struct qat_inter_sgl);
403 memset(stream, 0, qat_comp_stream_size());
404 stream->memzone = memzone;
405 stream->state_registers_decomp = memzone->addr;
406 stream->state_registers_decomp_phys = memzone->iova;
407 stream->inflate_context = ((uint8_t *) memzone->addr)
408 + QAT_STATE_REGISTERS_MAX_SIZE;
409 stream->inflate_context_phys = memzone->iova
410 + QAT_STATE_REGISTERS_MAX_SIZE;
414 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused,
415 void *opaque __rte_unused, void *obj,
416 unsigned obj_idx __rte_unused)
418 struct qat_comp_stream *stream = obj;
420 rte_memzone_free(stream->memzone);
423 static struct rte_mempool *
424 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev,
426 uint32_t num_elements)
428 char stream_pool_name[RTE_MEMPOOL_NAMESIZE];
429 struct rte_mempool *mp;
431 snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE,
432 "%s_streams", comp_dev->qat_dev->name);
434 QAT_LOG(DEBUG, "streampool: %s", stream_pool_name);
435 mp = rte_mempool_lookup(stream_pool_name);
438 QAT_LOG(DEBUG, "streampool already created");
439 if (mp->size != num_elements) {
440 QAT_LOG(DEBUG, "streampool wrong size - delete it");
441 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
442 rte_mempool_free(mp);
444 comp_dev->streampool = NULL;
449 struct stream_create_info info = {
450 .comp_dev = comp_dev,
451 .socket_id = socket_id,
454 mp = rte_mempool_create(stream_pool_name,
456 qat_comp_stream_size(), 0, 0,
457 NULL, NULL, qat_comp_stream_init, &info,
461 "Err creating mempool %s w %d elements of size %d",
462 stream_pool_name, num_elements,
463 qat_comp_stream_size());
464 } else if (info.error) {
465 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
467 "Destoying mempool %s as at least one element failed initialisation",
469 rte_mempool_free(mp);
478 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
480 /* Free intermediate buffers */
481 if (comp_dev->interm_buff_mz) {
482 char mz_name[RTE_MEMZONE_NAMESIZE];
483 int i = qat_gen_config[
484 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required;
487 snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
489 comp_dev->qat_dev->name, i);
490 rte_memzone_free(rte_memzone_lookup(mz_name));
492 rte_memzone_free(comp_dev->interm_buff_mz);
493 comp_dev->interm_buff_mz = NULL;
496 /* Free private_xform pool */
497 if (comp_dev->xformpool) {
498 /* Free internal mempool for private xforms */
499 rte_mempool_free(comp_dev->xformpool);
500 comp_dev->xformpool = NULL;
503 /* Free stream pool */
504 if (comp_dev->streampool) {
505 rte_mempool_obj_iter(comp_dev->streampool,
506 qat_comp_stream_destroy, NULL);
507 rte_mempool_free(comp_dev->streampool);
508 comp_dev->streampool = NULL;
513 qat_comp_dev_config(struct rte_compressdev *dev,
514 struct rte_compressdev_config *config)
516 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
519 if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
521 "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
522 " QAT device can't be used for Dynamic Deflate. "
523 "Did you really intend to do this?");
525 comp_dev->interm_buff_mz =
526 qat_comp_setup_inter_buffers(comp_dev,
527 RTE_PMD_QAT_COMP_IM_BUFFER_SIZE);
528 if (comp_dev->interm_buff_mz == NULL) {
534 if (config->max_nb_priv_xforms) {
535 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
536 config, config->max_nb_priv_xforms);
537 if (comp_dev->xformpool == NULL) {
542 comp_dev->xformpool = NULL;
544 if (config->max_nb_streams) {
545 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev,
546 config->socket_id, config->max_nb_streams);
547 if (comp_dev->streampool == NULL) {
552 comp_dev->streampool = NULL;
557 _qat_comp_dev_config_clear(comp_dev);
562 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused)
568 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused)
574 qat_comp_dev_close(struct rte_compressdev *dev)
578 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
580 for (i = 0; i < dev->data->nb_queue_pairs; i++) {
581 ret = qat_comp_qp_release(dev, i);
586 _qat_comp_dev_config_clear(comp_dev);
593 qat_comp_dev_info_get(struct rte_compressdev *dev,
594 struct rte_compressdev_info *info)
596 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
597 struct qat_pci_device *qat_dev = comp_dev->qat_dev;
600 info->max_nb_queue_pairs =
601 qat_qps_per_service(qat_dev,
602 QAT_SERVICE_COMPRESSION);
603 info->feature_flags = dev->feature_flags;
604 info->capabilities = comp_dev->qat_dev_capabilities;
609 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused,
610 struct rte_comp_op **ops __rte_unused,
611 uint16_t nb_ops __rte_unused)
613 QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !");
617 static struct rte_compressdev_ops compress_qat_dummy_ops = {
619 /* Device related operations */
620 .dev_configure = NULL,
622 .dev_stop = qat_comp_dev_stop,
623 .dev_close = qat_comp_dev_close,
624 .dev_infos_get = NULL,
627 .stats_reset = qat_comp_stats_reset,
628 .queue_pair_setup = NULL,
629 .queue_pair_release = qat_comp_qp_release,
631 /* Compression related operations */
632 .private_xform_create = NULL,
633 .private_xform_free = qat_comp_private_xform_free
637 qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops,
640 uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
641 struct qat_qp *tmp_qp = (struct qat_qp *)qp;
644 if ((*ops)->debug_status ==
645 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) {
646 tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst =
647 qat_comp_pmd_enq_deq_dummy_op_burst;
648 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
649 qat_comp_pmd_enq_deq_dummy_op_burst;
651 tmp_qp->qat_dev->comp_dev->compressdev->dev_ops =
652 &compress_qat_dummy_ops;
654 "This QAT hardware doesn't support compression operation");
657 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
658 (compressdev_dequeue_pkt_burst_t)
659 qat_dequeue_op_burst;
665 static struct rte_compressdev_ops compress_qat_ops = {
667 /* Device related operations */
668 .dev_configure = qat_comp_dev_config,
669 .dev_start = qat_comp_dev_start,
670 .dev_stop = qat_comp_dev_stop,
671 .dev_close = qat_comp_dev_close,
672 .dev_infos_get = qat_comp_dev_info_get,
674 .stats_get = qat_comp_stats_get,
675 .stats_reset = qat_comp_stats_reset,
676 .queue_pair_setup = qat_comp_qp_setup,
677 .queue_pair_release = qat_comp_qp_release,
679 /* Compression related operations */
680 .private_xform_create = qat_comp_private_xform_create,
681 .private_xform_free = qat_comp_private_xform_free,
682 .stream_create = qat_comp_stream_create,
683 .stream_free = qat_comp_stream_free
686 /* An rte_driver is needed in the registration of the device with compressdev.
687 * The actual qat pci's rte_driver can't be used as its name represents
688 * the whole pci device with all services. Think of this as a holder for a name
689 * for the compression part of the pci device.
691 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD);
692 static const struct rte_driver compdev_qat_driver = {
693 .name = qat_comp_drv_name,
694 .alias = qat_comp_drv_name
697 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
698 struct qat_dev_cmd_param *qat_dev_cmd_param)
701 struct qat_device_info *qat_dev_instance =
702 &qat_pci_devs[qat_pci_dev->qat_dev_id];
703 struct rte_compressdev_pmd_init_params init_params = {
705 .socket_id = qat_dev_instance->pci_dev->device.numa_node,
707 char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
708 char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
709 struct rte_compressdev *compressdev;
710 struct qat_comp_dev_private *comp_dev;
711 const struct rte_compressdev_capabilities *capabilities;
714 if (qat_pci_dev->qat_dev_gen == QAT_GEN4) {
715 QAT_LOG(ERR, "Compression PMD not supported on QAT 4xxx");
718 snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
719 qat_pci_dev->name, "comp");
720 QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
722 /* Populate subset device to use in compressdev device creation */
723 qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver;
724 qat_dev_instance->comp_rte_dev.numa_node =
725 qat_dev_instance->pci_dev->device.numa_node;
726 qat_dev_instance->comp_rte_dev.devargs = NULL;
728 compressdev = rte_compressdev_pmd_create(name,
729 &(qat_dev_instance->comp_rte_dev),
730 sizeof(struct qat_comp_dev_private),
733 if (compressdev == NULL)
736 compressdev->dev_ops = &compress_qat_ops;
738 compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t)
739 qat_enqueue_comp_op_burst;
740 compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst;
742 compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
744 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
747 snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
748 "QAT_COMP_CAPA_GEN_%d",
749 qat_pci_dev->qat_dev_gen);
751 comp_dev = compressdev->data->dev_private;
752 comp_dev->qat_dev = qat_pci_dev;
753 comp_dev->compressdev = compressdev;
755 switch (qat_pci_dev->qat_dev_gen) {
759 capabilities = qat_comp_gen_capabilities;
760 capa_size = sizeof(qat_comp_gen_capabilities);
763 capabilities = qat_comp_gen_capabilities;
764 capa_size = sizeof(qat_comp_gen_capabilities);
766 "QAT gen %d capabilities unknown, default to GEN1",
767 qat_pci_dev->qat_dev_gen);
771 comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name);
772 if (comp_dev->capa_mz == NULL) {
773 comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name,
777 if (comp_dev->capa_mz == NULL) {
779 "Error allocating memzone for capabilities, destroying PMD for %s",
781 memset(&qat_dev_instance->comp_rte_dev, 0,
782 sizeof(qat_dev_instance->comp_rte_dev));
783 rte_compressdev_pmd_destroy(compressdev);
787 memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
788 comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr;
791 if (qat_dev_cmd_param[i].name == NULL)
793 if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME))
794 comp_dev->min_enq_burst_threshold =
795 qat_dev_cmd_param[i].val;
798 qat_pci_dev->comp_dev = comp_dev;
801 "Created QAT COMP device %s as compressdev instance %d",
802 name, compressdev->data->dev_id);
807 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
809 struct qat_comp_dev_private *comp_dev;
811 if (qat_pci_dev == NULL)
814 comp_dev = qat_pci_dev->comp_dev;
815 if (comp_dev == NULL)
818 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
819 rte_memzone_free(qat_pci_dev->comp_dev->capa_mz);
821 /* clean up any resources used by the device */
822 qat_comp_dev_close(comp_dev->compressdev);
824 rte_compressdev_pmd_destroy(comp_dev->compressdev);
825 qat_pci_dev->comp_dev = NULL;