1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2015-2019 Intel Corporation
3 */
4
5 #include <rte_malloc.h>
6
7 #include "qat_comp.h"
8 #include "qat_comp_pmd.h"
9
10 #define QAT_PMD_COMP_SGL_DEF_SEGMENTS 16
11
12 struct stream_create_info {
13 struct qat_comp_dev_private *comp_dev;
14 int socket_id;
15 int error;
16 };
17
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} } };
34
35 static void
qat_comp_stats_get(struct rte_compressdev * dev,struct rte_compressdev_stats * stats)36 qat_comp_stats_get(struct rte_compressdev *dev,
37 struct rte_compressdev_stats *stats)
38 {
39 struct qat_common_stats qat_stats = {0};
40 struct qat_comp_dev_private *qat_priv;
41
42 if (stats == NULL || dev == NULL) {
43 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
44 return;
45 }
46 qat_priv = dev->data->dev_private;
47
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;
53 }
54
55 static void
qat_comp_stats_reset(struct rte_compressdev * dev)56 qat_comp_stats_reset(struct rte_compressdev *dev)
57 {
58 struct qat_comp_dev_private *qat_priv;
59
60 if (dev == NULL) {
61 QAT_LOG(ERR, "invalid compressdev ptr %p", dev);
62 return;
63 }
64 qat_priv = dev->data->dev_private;
65
66 qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
67
68 }
69
70 static int
qat_comp_qp_release(struct rte_compressdev * dev,uint16_t queue_pair_id)71 qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id)
72 {
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 uint32_t i;
78
79 QAT_LOG(DEBUG, "Release comp qp %u on device %d",
80 queue_pair_id, dev->data->dev_id);
81
82 qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][queue_pair_id]
83 = NULL;
84
85 for (i = 0; i < qp->nb_descriptors; i++) {
86
87 struct qat_comp_op_cookie *cookie = qp->op_cookies[i];
88
89 rte_free(cookie->qat_sgl_src_d);
90 rte_free(cookie->qat_sgl_dst_d);
91 }
92
93 return qat_qp_release((struct qat_qp **)
94 &(dev->data->queue_pairs[queue_pair_id]));
95 }
96
97 static int
qat_comp_qp_setup(struct rte_compressdev * dev,uint16_t qp_id,uint32_t max_inflight_ops,int socket_id)98 qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
99 uint32_t max_inflight_ops, int socket_id)
100 {
101 struct qat_qp *qp;
102 int ret = 0;
103 uint32_t i;
104 struct qat_qp_config qat_qp_conf;
105
106 struct qat_qp **qp_addr =
107 (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
108 struct qat_comp_dev_private *qat_private = dev->data->dev_private;
109 const struct qat_qp_hw_data *comp_hw_qps =
110 qat_gen_config[qat_private->qat_dev->qat_dev_gen]
111 .qp_hw_data[QAT_SERVICE_COMPRESSION];
112 const struct qat_qp_hw_data *qp_hw_data = comp_hw_qps + qp_id;
113
114 /* If qp is already in use free ring memory and qp metadata. */
115 if (*qp_addr != NULL) {
116 ret = qat_comp_qp_release(dev, qp_id);
117 if (ret < 0)
118 return ret;
119 }
120 if (qp_id >= qat_qps_per_service(comp_hw_qps,
121 QAT_SERVICE_COMPRESSION)) {
122 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
123 return -EINVAL;
124 }
125
126 qat_qp_conf.hw = qp_hw_data;
127 qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie);
128 qat_qp_conf.nb_descriptors = max_inflight_ops;
129 qat_qp_conf.socket_id = socket_id;
130 qat_qp_conf.service_str = "comp";
131
132 ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
133 if (ret != 0)
134 return ret;
135
136 /* store a link to the qp in the qat_pci_device */
137 qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id]
138 = *qp_addr;
139
140 qp = (struct qat_qp *)*qp_addr;
141 qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold;
142
143 for (i = 0; i < qp->nb_descriptors; i++) {
144
145 struct qat_comp_op_cookie *cookie =
146 qp->op_cookies[i];
147
148 cookie->qp = qp;
149 cookie->cookie_index = i;
150
151 cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL,
152 sizeof(struct qat_sgl) +
153 sizeof(struct qat_flat_buf) *
154 QAT_PMD_COMP_SGL_DEF_SEGMENTS,
155 64, dev->data->socket_id);
156
157 cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL,
158 sizeof(struct qat_sgl) +
159 sizeof(struct qat_flat_buf) *
160 QAT_PMD_COMP_SGL_DEF_SEGMENTS,
161 64, dev->data->socket_id);
162
163 if (cookie->qat_sgl_src_d == NULL ||
164 cookie->qat_sgl_dst_d == NULL) {
165 QAT_LOG(ERR, "Can't allocate SGL"
166 " for device %s",
167 qat_private->qat_dev->name);
168 return -ENOMEM;
169 }
170
171 cookie->qat_sgl_src_phys_addr =
172 rte_malloc_virt2iova(cookie->qat_sgl_src_d);
173
174 cookie->qat_sgl_dst_phys_addr =
175 rte_malloc_virt2iova(cookie->qat_sgl_dst_d);
176
177 cookie->dst_nb_elems = cookie->src_nb_elems =
178 QAT_PMD_COMP_SGL_DEF_SEGMENTS;
179
180 cookie->socket_id = dev->data->socket_id;
181
182 cookie->error = 0;
183 }
184
185 return ret;
186 }
187
188
189 #define QAT_IM_BUFFER_DEBUG 0
190 static const struct rte_memzone *
qat_comp_setup_inter_buffers(struct qat_comp_dev_private * comp_dev,uint32_t buff_size)191 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
192 uint32_t buff_size)
193 {
194 char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE];
195 const struct rte_memzone *memzone;
196 uint8_t *mz_start = NULL;
197 rte_iova_t mz_start_phys = 0;
198 struct array_of_ptrs *array_of_pointers;
199 int size_of_ptr_array;
200 uint32_t full_size;
201 uint32_t offset_of_sgls, offset_of_flat_buffs = 0;
202 int i;
203 int num_im_sgls = qat_gen_config[
204 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required;
205
206 QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls",
207 comp_dev->qat_dev->name, num_im_sgls);
208 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
209 "%s_inter_buff", comp_dev->qat_dev->name);
210 memzone = rte_memzone_lookup(inter_buff_mz_name);
211 if (memzone != NULL) {
212 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already");
213 return memzone;
214 }
215
216 /* Create a memzone to hold intermediate buffers and associated
217 * meta-data needed by the firmware. The memzone contains 3 parts:
218 * - a list of num_im_sgls physical pointers to sgls
219 * - the num_im_sgl sgl structures, each pointing to
220 * QAT_NUM_BUFS_IN_IM_SGL flat buffers
221 * - the flat buffers: num_im_sgl * QAT_NUM_BUFS_IN_IM_SGL
222 * buffers, each of buff_size
223 * num_im_sgls depends on the hardware generation of the device
224 * buff_size comes from the user via the config file
225 */
226
227 size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t);
228 offset_of_sgls = (size_of_ptr_array + (~QAT_64_BYTE_ALIGN_MASK))
229 & QAT_64_BYTE_ALIGN_MASK;
230 offset_of_flat_buffs =
231 offset_of_sgls + num_im_sgls * sizeof(struct qat_inter_sgl);
232 full_size = offset_of_flat_buffs +
233 num_im_sgls * buff_size * QAT_NUM_BUFS_IN_IM_SGL;
234
235 memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, full_size,
236 comp_dev->compressdev->data->socket_id,
237 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
238 if (memzone == NULL) {
239 QAT_LOG(ERR, "Can't allocate intermediate buffers"
240 " for device %s", comp_dev->qat_dev->name);
241 return NULL;
242 }
243
244 mz_start = (uint8_t *)memzone->addr;
245 mz_start_phys = memzone->iova;
246 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
247 ", size required %d, size created %zu",
248 inter_buff_mz_name, mz_start, mz_start_phys,
249 full_size, memzone->len);
250
251 array_of_pointers = (struct array_of_ptrs *)mz_start;
252 for (i = 0; i < num_im_sgls; i++) {
253 uint32_t curr_sgl_offset =
254 offset_of_sgls + i * sizeof(struct qat_inter_sgl);
255 struct qat_inter_sgl *sgl =
256 (struct qat_inter_sgl *)(mz_start + curr_sgl_offset);
257 int lb;
258 array_of_pointers->pointer[i] = mz_start_phys + curr_sgl_offset;
259
260 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL;
261 sgl->num_mapped_bufs = 0;
262 sgl->resrvd = 0;
263
264 #if QAT_IM_BUFFER_DEBUG
265 QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers"
266 " = 0x%"PRIx64, i, array_of_pointers->pointer[i]);
267 QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl);
268 #endif
269 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) {
270 sgl->buffers[lb].addr =
271 mz_start_phys + offset_of_flat_buffs +
272 (((i * QAT_NUM_BUFS_IN_IM_SGL) + lb) * buff_size);
273 sgl->buffers[lb].len = buff_size;
274 sgl->buffers[lb].resrvd = 0;
275 #if QAT_IM_BUFFER_DEBUG
276 QAT_LOG(DEBUG,
277 " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d",
278 lb, sgl->buffers[lb].addr, sgl->buffers[lb].len);
279 #endif
280 }
281 }
282 #if QAT_IM_BUFFER_DEBUG
283 QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:",
284 mz_start, offset_of_flat_buffs + 32);
285 #endif
286 return memzone;
287 }
288
289 static struct rte_mempool *
qat_comp_create_xform_pool(struct qat_comp_dev_private * comp_dev,struct rte_compressdev_config * config,uint32_t num_elements)290 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
291 struct rte_compressdev_config *config,
292 uint32_t num_elements)
293 {
294 char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
295 struct rte_mempool *mp;
296
297 snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE,
298 "%s_xforms", comp_dev->qat_dev->name);
299
300 QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name);
301 mp = rte_mempool_lookup(xform_pool_name);
302
303 if (mp != NULL) {
304 QAT_LOG(DEBUG, "xformpool already created");
305 if (mp->size != num_elements) {
306 QAT_LOG(DEBUG, "xformpool wrong size - delete it");
307 rte_mempool_free(mp);
308 mp = NULL;
309 comp_dev->xformpool = NULL;
310 }
311 }
312
313 if (mp == NULL)
314 mp = rte_mempool_create(xform_pool_name,
315 num_elements,
316 qat_comp_xform_size(), 0, 0,
317 NULL, NULL, NULL, NULL, config->socket_id,
318 0);
319 if (mp == NULL) {
320 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
321 xform_pool_name, num_elements, qat_comp_xform_size());
322 return NULL;
323 }
324
325 return mp;
326 }
327
328 static void
qat_comp_stream_init(struct rte_mempool * mp __rte_unused,void * opaque,void * obj,unsigned int obj_idx)329 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque,
330 void *obj, unsigned int obj_idx)
331 {
332 struct stream_create_info *info = opaque;
333 struct qat_comp_stream *stream = obj;
334 char mz_name[RTE_MEMZONE_NAMESIZE];
335 const struct rte_memzone *memzone;
336 struct qat_inter_sgl *ram_banks_desc;
337
338 /* find a memzone for RAM banks */
339 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks",
340 info->comp_dev->qat_dev->name, obj_idx);
341 memzone = rte_memzone_lookup(mz_name);
342 if (memzone == NULL) {
343 /* allocate a memzone for compression state and RAM banks */
344 memzone = rte_memzone_reserve_aligned(mz_name,
345 QAT_STATE_REGISTERS_MAX_SIZE
346 + sizeof(struct qat_inter_sgl)
347 + QAT_INFLATE_CONTEXT_SIZE,
348 info->socket_id,
349 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
350 if (memzone == NULL) {
351 QAT_LOG(ERR,
352 "Can't allocate RAM banks for device %s, object %u",
353 info->comp_dev->qat_dev->name, obj_idx);
354 info->error = -ENOMEM;
355 return;
356 }
357 }
358
359 /* prepare the buffer list descriptor for RAM banks */
360 ram_banks_desc = (struct qat_inter_sgl *)
361 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE);
362 ram_banks_desc->num_bufs = 1;
363 ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE;
364 ram_banks_desc->buffers[0].addr = memzone->iova
365 + QAT_STATE_REGISTERS_MAX_SIZE
366 + sizeof(struct qat_inter_sgl);
367
368 memset(stream, 0, qat_comp_stream_size());
369 stream->memzone = memzone;
370 stream->state_registers_decomp = memzone->addr;
371 stream->state_registers_decomp_phys = memzone->iova;
372 stream->inflate_context = ((uint8_t *) memzone->addr)
373 + QAT_STATE_REGISTERS_MAX_SIZE;
374 stream->inflate_context_phys = memzone->iova
375 + QAT_STATE_REGISTERS_MAX_SIZE;
376 }
377
378 static void
qat_comp_stream_destroy(struct rte_mempool * mp __rte_unused,void * opaque __rte_unused,void * obj,unsigned obj_idx __rte_unused)379 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused,
380 void *opaque __rte_unused, void *obj,
381 unsigned obj_idx __rte_unused)
382 {
383 struct qat_comp_stream *stream = obj;
384
385 rte_memzone_free(stream->memzone);
386 }
387
388 static struct rte_mempool *
qat_comp_create_stream_pool(struct qat_comp_dev_private * comp_dev,int socket_id,uint32_t num_elements)389 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev,
390 int socket_id,
391 uint32_t num_elements)
392 {
393 char stream_pool_name[RTE_MEMPOOL_NAMESIZE];
394 struct rte_mempool *mp;
395
396 snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE,
397 "%s_streams", comp_dev->qat_dev->name);
398
399 QAT_LOG(DEBUG, "streampool: %s", stream_pool_name);
400 mp = rte_mempool_lookup(stream_pool_name);
401
402 if (mp != NULL) {
403 QAT_LOG(DEBUG, "streampool already created");
404 if (mp->size != num_elements) {
405 QAT_LOG(DEBUG, "streampool wrong size - delete it");
406 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
407 rte_mempool_free(mp);
408 mp = NULL;
409 comp_dev->streampool = NULL;
410 }
411 }
412
413 if (mp == NULL) {
414 struct stream_create_info info = {
415 .comp_dev = comp_dev,
416 .socket_id = socket_id,
417 .error = 0
418 };
419 mp = rte_mempool_create(stream_pool_name,
420 num_elements,
421 qat_comp_stream_size(), 0, 0,
422 NULL, NULL, qat_comp_stream_init, &info,
423 socket_id, 0);
424 if (mp == NULL) {
425 QAT_LOG(ERR,
426 "Err creating mempool %s w %d elements of size %d",
427 stream_pool_name, num_elements,
428 qat_comp_stream_size());
429 } else if (info.error) {
430 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
431 QAT_LOG(ERR,
432 "Destoying mempool %s as at least one element failed initialisation",
433 stream_pool_name);
434 rte_mempool_free(mp);
435 mp = NULL;
436 }
437 }
438
439 return mp;
440 }
441
442 static void
_qat_comp_dev_config_clear(struct qat_comp_dev_private * comp_dev)443 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
444 {
445 /* Free intermediate buffers */
446 if (comp_dev->interm_buff_mz) {
447 rte_memzone_free(comp_dev->interm_buff_mz);
448 comp_dev->interm_buff_mz = NULL;
449 }
450
451 /* Free private_xform pool */
452 if (comp_dev->xformpool) {
453 /* Free internal mempool for private xforms */
454 rte_mempool_free(comp_dev->xformpool);
455 comp_dev->xformpool = NULL;
456 }
457
458 /* Free stream pool */
459 if (comp_dev->streampool) {
460 rte_mempool_obj_iter(comp_dev->streampool,
461 qat_comp_stream_destroy, NULL);
462 rte_mempool_free(comp_dev->streampool);
463 comp_dev->streampool = NULL;
464 }
465 }
466
467 static int
qat_comp_dev_config(struct rte_compressdev * dev,struct rte_compressdev_config * config)468 qat_comp_dev_config(struct rte_compressdev *dev,
469 struct rte_compressdev_config *config)
470 {
471 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
472 int ret = 0;
473
474 if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
475 QAT_LOG(WARNING,
476 "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
477 " QAT device can't be used for Dynamic Deflate. "
478 "Did you really intend to do this?");
479 } else {
480 comp_dev->interm_buff_mz =
481 qat_comp_setup_inter_buffers(comp_dev,
482 RTE_PMD_QAT_COMP_IM_BUFFER_SIZE);
483 if (comp_dev->interm_buff_mz == NULL) {
484 ret = -ENOMEM;
485 goto error_out;
486 }
487 }
488
489 if (config->max_nb_priv_xforms) {
490 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
491 config, config->max_nb_priv_xforms);
492 if (comp_dev->xformpool == NULL) {
493 ret = -ENOMEM;
494 goto error_out;
495 }
496 } else
497 comp_dev->xformpool = NULL;
498
499 if (config->max_nb_streams) {
500 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev,
501 config->socket_id, config->max_nb_streams);
502 if (comp_dev->streampool == NULL) {
503 ret = -ENOMEM;
504 goto error_out;
505 }
506 } else
507 comp_dev->streampool = NULL;
508
509 return 0;
510
511 error_out:
512 _qat_comp_dev_config_clear(comp_dev);
513 return ret;
514 }
515
516 static int
qat_comp_dev_start(struct rte_compressdev * dev __rte_unused)517 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused)
518 {
519 return 0;
520 }
521
522 static void
qat_comp_dev_stop(struct rte_compressdev * dev __rte_unused)523 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused)
524 {
525
526 }
527
528 static int
qat_comp_dev_close(struct rte_compressdev * dev)529 qat_comp_dev_close(struct rte_compressdev *dev)
530 {
531 int i;
532 int ret = 0;
533 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
534
535 for (i = 0; i < dev->data->nb_queue_pairs; i++) {
536 ret = qat_comp_qp_release(dev, i);
537 if (ret < 0)
538 return ret;
539 }
540
541 _qat_comp_dev_config_clear(comp_dev);
542
543 return ret;
544 }
545
546
547 static void
qat_comp_dev_info_get(struct rte_compressdev * dev,struct rte_compressdev_info * info)548 qat_comp_dev_info_get(struct rte_compressdev *dev,
549 struct rte_compressdev_info *info)
550 {
551 struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
552 const struct qat_qp_hw_data *comp_hw_qps =
553 qat_gen_config[comp_dev->qat_dev->qat_dev_gen]
554 .qp_hw_data[QAT_SERVICE_COMPRESSION];
555
556 if (info != NULL) {
557 info->max_nb_queue_pairs =
558 qat_qps_per_service(comp_hw_qps,
559 QAT_SERVICE_COMPRESSION);
560 info->feature_flags = dev->feature_flags;
561 info->capabilities = comp_dev->qat_dev_capabilities;
562 }
563 }
564
565 static uint16_t
qat_comp_pmd_enq_deq_dummy_op_burst(void * qp __rte_unused,struct rte_comp_op ** ops __rte_unused,uint16_t nb_ops __rte_unused)566 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused,
567 struct rte_comp_op **ops __rte_unused,
568 uint16_t nb_ops __rte_unused)
569 {
570 QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !");
571 return 0;
572 }
573
574 static struct rte_compressdev_ops compress_qat_dummy_ops = {
575
576 /* Device related operations */
577 .dev_configure = NULL,
578 .dev_start = NULL,
579 .dev_stop = qat_comp_dev_stop,
580 .dev_close = qat_comp_dev_close,
581 .dev_infos_get = NULL,
582
583 .stats_get = NULL,
584 .stats_reset = qat_comp_stats_reset,
585 .queue_pair_setup = NULL,
586 .queue_pair_release = qat_comp_qp_release,
587
588 /* Compression related operations */
589 .private_xform_create = NULL,
590 .private_xform_free = qat_comp_private_xform_free
591 };
592
593 static uint16_t
qat_comp_pmd_dequeue_first_op_burst(void * qp,struct rte_comp_op ** ops,uint16_t nb_ops)594 qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops,
595 uint16_t nb_ops)
596 {
597 uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
598 struct qat_qp *tmp_qp = (struct qat_qp *)qp;
599
600 if (ret) {
601 if ((*ops)->debug_status ==
602 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) {
603 tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst =
604 qat_comp_pmd_enq_deq_dummy_op_burst;
605 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
606 qat_comp_pmd_enq_deq_dummy_op_burst;
607
608 tmp_qp->qat_dev->comp_dev->compressdev->dev_ops =
609 &compress_qat_dummy_ops;
610 QAT_LOG(ERR, "QAT PMD detected wrong FW version !");
611
612 } else {
613 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
614 (compressdev_dequeue_pkt_burst_t)
615 qat_dequeue_op_burst;
616 }
617 }
618 return ret;
619 }
620
621 static struct rte_compressdev_ops compress_qat_ops = {
622
623 /* Device related operations */
624 .dev_configure = qat_comp_dev_config,
625 .dev_start = qat_comp_dev_start,
626 .dev_stop = qat_comp_dev_stop,
627 .dev_close = qat_comp_dev_close,
628 .dev_infos_get = qat_comp_dev_info_get,
629
630 .stats_get = qat_comp_stats_get,
631 .stats_reset = qat_comp_stats_reset,
632 .queue_pair_setup = qat_comp_qp_setup,
633 .queue_pair_release = qat_comp_qp_release,
634
635 /* Compression related operations */
636 .private_xform_create = qat_comp_private_xform_create,
637 .private_xform_free = qat_comp_private_xform_free,
638 .stream_create = qat_comp_stream_create,
639 .stream_free = qat_comp_stream_free
640 };
641
642 /* An rte_driver is needed in the registration of the device with compressdev.
643 * The actual qat pci's rte_driver can't be used as its name represents
644 * the whole pci device with all services. Think of this as a holder for a name
645 * for the compression part of the pci device.
646 */
647 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD);
648 static const struct rte_driver compdev_qat_driver = {
649 .name = qat_comp_drv_name,
650 .alias = qat_comp_drv_name
651 };
652 int
qat_comp_dev_create(struct qat_pci_device * qat_pci_dev,struct qat_dev_cmd_param * qat_dev_cmd_param)653 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
654 struct qat_dev_cmd_param *qat_dev_cmd_param)
655 {
656 int i = 0;
657 struct qat_device_info *qat_dev_instance =
658 &qat_pci_devs[qat_pci_dev->qat_dev_id];
659 if (qat_pci_dev->qat_dev_gen == QAT_GEN3) {
660 QAT_LOG(ERR, "Compression PMD not supported on QAT c4xxx");
661 return 0;
662 }
663
664 struct rte_compressdev_pmd_init_params init_params = {
665 .name = "",
666 .socket_id = qat_dev_instance->pci_dev->device.numa_node,
667 };
668 char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
669 char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
670 struct rte_compressdev *compressdev;
671 struct qat_comp_dev_private *comp_dev;
672 const struct rte_compressdev_capabilities *capabilities;
673 uint64_t capa_size;
674
675 snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
676 qat_pci_dev->name, "comp");
677 QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
678
679 /* Populate subset device to use in compressdev device creation */
680 qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver;
681 qat_dev_instance->comp_rte_dev.numa_node =
682 qat_dev_instance->pci_dev->device.numa_node;
683 qat_dev_instance->comp_rte_dev.devargs = NULL;
684
685 compressdev = rte_compressdev_pmd_create(name,
686 &(qat_dev_instance->comp_rte_dev),
687 sizeof(struct qat_comp_dev_private),
688 &init_params);
689
690 if (compressdev == NULL)
691 return -ENODEV;
692
693 compressdev->dev_ops = &compress_qat_ops;
694
695 compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t)
696 qat_enqueue_comp_op_burst;
697 compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst;
698
699 compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
700
701 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
702 return 0;
703
704 snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
705 "QAT_COMP_CAPA_GEN_%d",
706 qat_pci_dev->qat_dev_gen);
707
708 comp_dev = compressdev->data->dev_private;
709 comp_dev->qat_dev = qat_pci_dev;
710 comp_dev->compressdev = compressdev;
711
712 switch (qat_pci_dev->qat_dev_gen) {
713 case QAT_GEN1:
714 case QAT_GEN2:
715 case QAT_GEN3:
716 capabilities = qat_comp_gen_capabilities;
717 capa_size = sizeof(qat_comp_gen_capabilities);
718 break;
719 default:
720 capabilities = qat_comp_gen_capabilities;
721 capa_size = sizeof(qat_comp_gen_capabilities);
722 QAT_LOG(DEBUG,
723 "QAT gen %d capabilities unknown, default to GEN1",
724 qat_pci_dev->qat_dev_gen);
725 break;
726 }
727
728 comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name);
729 if (comp_dev->capa_mz == NULL) {
730 comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name,
731 capa_size,
732 rte_socket_id(), 0);
733 }
734 if (comp_dev->capa_mz == NULL) {
735 QAT_LOG(DEBUG,
736 "Error allocating memzone for capabilities, destroying PMD for %s",
737 name);
738 memset(&qat_dev_instance->comp_rte_dev, 0,
739 sizeof(qat_dev_instance->comp_rte_dev));
740 rte_compressdev_pmd_destroy(compressdev);
741 return -EFAULT;
742 }
743
744 memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
745 comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr;
746
747 while (1) {
748 if (qat_dev_cmd_param[i].name == NULL)
749 break;
750 if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME))
751 comp_dev->min_enq_burst_threshold =
752 qat_dev_cmd_param[i].val;
753 i++;
754 }
755 qat_pci_dev->comp_dev = comp_dev;
756
757 QAT_LOG(DEBUG,
758 "Created QAT COMP device %s as compressdev instance %d",
759 name, compressdev->data->dev_id);
760 return 0;
761 }
762
763 int
qat_comp_dev_destroy(struct qat_pci_device * qat_pci_dev)764 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
765 {
766 struct qat_comp_dev_private *comp_dev;
767
768 if (qat_pci_dev == NULL)
769 return -ENODEV;
770
771 comp_dev = qat_pci_dev->comp_dev;
772 if (comp_dev == NULL)
773 return 0;
774
775 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
776 rte_memzone_free(qat_pci_dev->comp_dev->capa_mz);
777
778 /* clean up any resources used by the device */
779 qat_comp_dev_close(comp_dev->compressdev);
780
781 rte_compressdev_pmd_destroy(comp_dev->compressdev);
782 qat_pci_dev->comp_dev = NULL;
783
784 return 0;
785 }
786