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33 #include <rte_common.h>
34 #include <rte_hexdump.h>
35 #include <rte_cryptodev.h>
36 #include <rte_cryptodev_pmd.h>
38 #include <rte_malloc.h>
39 #include <rte_cpuflags.h>
41 #include "rte_aesni_mb_pmd_private.h"
44 * Global static parameter used to create a unique name for each AES-NI multi
45 * buffer crypto device.
47 static unsigned unique_name_id;
50 create_unique_device_name(char *name, size_t size)
57 ret = snprintf(name, size, "%s_%u", RTE_STR(CRYPTODEV_NAME_AESNI_MB_PMD),
64 typedef void (*hash_one_block_t)(void *data, void *digest);
65 typedef void (*aes_keyexp_t)(void *key, void *enc_exp_keys, void *dec_exp_keys);
68 * Calculate the authentication pre-computes
70 * @param one_block_hash Function pointer to calculate digest on ipad/opad
71 * @param ipad Inner pad output byte array
72 * @param opad Outer pad output byte array
73 * @param hkey Authentication key
74 * @param hkey_len Authentication key length
75 * @param blocksize Block size of selected hash algo
78 calculate_auth_precomputes(hash_one_block_t one_block_hash,
79 uint8_t *ipad, uint8_t *opad,
80 uint8_t *hkey, uint16_t hkey_len,
85 uint8_t ipad_buf[blocksize] __rte_aligned(16);
86 uint8_t opad_buf[blocksize] __rte_aligned(16);
88 /* Setup inner and outer pads */
89 memset(ipad_buf, HMAC_IPAD_VALUE, blocksize);
90 memset(opad_buf, HMAC_OPAD_VALUE, blocksize);
92 /* XOR hash key with inner and outer pads */
93 length = hkey_len > blocksize ? blocksize : hkey_len;
95 for (i = 0; i < length; i++) {
96 ipad_buf[i] ^= hkey[i];
97 opad_buf[i] ^= hkey[i];
100 /* Compute partial hashes */
101 (*one_block_hash)(ipad_buf, ipad);
102 (*one_block_hash)(opad_buf, opad);
105 memset(ipad_buf, 0, blocksize);
106 memset(opad_buf, 0, blocksize);
109 /** Get xform chain order */
110 static enum aesni_mb_operation
111 aesni_mb_get_chain_order(const struct rte_crypto_sym_xform *xform)
114 return AESNI_MB_OP_NOT_SUPPORTED;
116 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
117 if (xform->next == NULL)
118 return AESNI_MB_OP_CIPHER_ONLY;
119 if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
120 return AESNI_MB_OP_CIPHER_HASH;
123 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
124 if (xform->next == NULL)
125 return AESNI_MB_OP_HASH_ONLY;
126 if (xform->next->type == RTE_CRYPTO_SYM_XFORM_CIPHER)
127 return AESNI_MB_OP_HASH_CIPHER;
130 return AESNI_MB_OP_NOT_SUPPORTED;
133 /** Set session authentication parameters */
135 aesni_mb_set_session_auth_parameters(const struct aesni_mb_ops *mb_ops,
136 struct aesni_mb_session *sess,
137 const struct rte_crypto_sym_xform *xform)
139 hash_one_block_t hash_oneblock_fn;
142 sess->auth.algo = NULL_HASH;
146 if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH) {
147 MB_LOG_ERR("Crypto xform struct not of type auth");
151 /* Select auth generate/verify */
152 sess->auth.operation = xform->auth.op;
154 /* Set Authentication Parameters */
155 if (xform->auth.algo == RTE_CRYPTO_AUTH_AES_XCBC_MAC) {
156 sess->auth.algo = AES_XCBC;
157 (*mb_ops->aux.keyexp.aes_xcbc)(xform->auth.key.data,
158 sess->auth.xcbc.k1_expanded,
159 sess->auth.xcbc.k2, sess->auth.xcbc.k3);
163 switch (xform->auth.algo) {
164 case RTE_CRYPTO_AUTH_MD5_HMAC:
165 sess->auth.algo = MD5;
166 hash_oneblock_fn = mb_ops->aux.one_block.md5;
168 case RTE_CRYPTO_AUTH_SHA1_HMAC:
169 sess->auth.algo = SHA1;
170 hash_oneblock_fn = mb_ops->aux.one_block.sha1;
172 case RTE_CRYPTO_AUTH_SHA224_HMAC:
173 sess->auth.algo = SHA_224;
174 hash_oneblock_fn = mb_ops->aux.one_block.sha224;
176 case RTE_CRYPTO_AUTH_SHA256_HMAC:
177 sess->auth.algo = SHA_256;
178 hash_oneblock_fn = mb_ops->aux.one_block.sha256;
180 case RTE_CRYPTO_AUTH_SHA384_HMAC:
181 sess->auth.algo = SHA_384;
182 hash_oneblock_fn = mb_ops->aux.one_block.sha384;
184 case RTE_CRYPTO_AUTH_SHA512_HMAC:
185 sess->auth.algo = SHA_512;
186 hash_oneblock_fn = mb_ops->aux.one_block.sha512;
189 MB_LOG_ERR("Unsupported authentication algorithm selection");
193 /* Calculate Authentication precomputes */
194 calculate_auth_precomputes(hash_oneblock_fn,
195 sess->auth.pads.inner, sess->auth.pads.outer,
196 xform->auth.key.data,
197 xform->auth.key.length,
198 get_auth_algo_blocksize(sess->auth.algo));
203 /** Set session cipher parameters */
205 aesni_mb_set_session_cipher_parameters(const struct aesni_mb_ops *mb_ops,
206 struct aesni_mb_session *sess,
207 const struct rte_crypto_sym_xform *xform)
209 aes_keyexp_t aes_keyexp_fn;
212 sess->cipher.mode = NULL_CIPHER;
216 if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER) {
217 MB_LOG_ERR("Crypto xform struct not of type cipher");
221 /* Select cipher direction */
222 switch (xform->cipher.op) {
223 case RTE_CRYPTO_CIPHER_OP_ENCRYPT:
224 sess->cipher.direction = ENCRYPT;
226 case RTE_CRYPTO_CIPHER_OP_DECRYPT:
227 sess->cipher.direction = DECRYPT;
230 MB_LOG_ERR("Unsupported cipher operation parameter");
234 /* Select cipher mode */
235 switch (xform->cipher.algo) {
236 case RTE_CRYPTO_CIPHER_AES_CBC:
237 sess->cipher.mode = CBC;
239 case RTE_CRYPTO_CIPHER_AES_CTR:
240 sess->cipher.mode = CNTR;
243 MB_LOG_ERR("Unsupported cipher mode parameter");
247 /* Check key length and choose key expansion function */
248 switch (xform->cipher.key.length) {
250 sess->cipher.key_length_in_bytes = AES_128_BYTES;
251 aes_keyexp_fn = mb_ops->aux.keyexp.aes128;
254 sess->cipher.key_length_in_bytes = AES_192_BYTES;
255 aes_keyexp_fn = mb_ops->aux.keyexp.aes192;
258 sess->cipher.key_length_in_bytes = AES_256_BYTES;
259 aes_keyexp_fn = mb_ops->aux.keyexp.aes256;
262 MB_LOG_ERR("Unsupported cipher key length");
266 /* Expanded cipher keys */
267 (*aes_keyexp_fn)(xform->cipher.key.data,
268 sess->cipher.expanded_aes_keys.encode,
269 sess->cipher.expanded_aes_keys.decode);
274 /** Parse crypto xform chain and set private session parameters */
276 aesni_mb_set_session_parameters(const struct aesni_mb_ops *mb_ops,
277 struct aesni_mb_session *sess,
278 const struct rte_crypto_sym_xform *xform)
280 const struct rte_crypto_sym_xform *auth_xform = NULL;
281 const struct rte_crypto_sym_xform *cipher_xform = NULL;
283 /* Select Crypto operation - hash then cipher / cipher then hash */
284 switch (aesni_mb_get_chain_order(xform)) {
285 case AESNI_MB_OP_HASH_CIPHER:
286 sess->chain_order = HASH_CIPHER;
288 cipher_xform = xform->next;
290 case AESNI_MB_OP_CIPHER_HASH:
291 sess->chain_order = CIPHER_HASH;
292 auth_xform = xform->next;
293 cipher_xform = xform;
295 case AESNI_MB_OP_HASH_ONLY:
296 sess->chain_order = HASH_CIPHER;
300 case AESNI_MB_OP_CIPHER_ONLY:
302 * Multi buffer library operates only at two modes,
303 * CIPHER_HASH and HASH_CIPHER. When doing ciphering only,
304 * chain order depends on cipher operation: encryption is always
305 * the first operation and decryption the last one.
307 if (xform->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
308 sess->chain_order = CIPHER_HASH;
310 sess->chain_order = HASH_CIPHER;
312 cipher_xform = xform;
314 case AESNI_MB_OP_NOT_SUPPORTED:
316 MB_LOG_ERR("Unsupported operation chain order parameter");
320 if (aesni_mb_set_session_auth_parameters(mb_ops, sess, auth_xform)) {
321 MB_LOG_ERR("Invalid/unsupported authentication parameters");
325 if (aesni_mb_set_session_cipher_parameters(mb_ops, sess,
327 MB_LOG_ERR("Invalid/unsupported cipher parameters");
333 /** Get multi buffer session */
334 static struct aesni_mb_session *
335 get_session(struct aesni_mb_qp *qp, struct rte_crypto_op *op)
337 struct aesni_mb_session *sess = NULL;
339 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
340 if (unlikely(op->sym->session->dev_type !=
341 RTE_CRYPTODEV_AESNI_MB_PMD))
344 sess = (struct aesni_mb_session *)op->sym->session->_private;
348 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
351 sess = (struct aesni_mb_session *)
352 ((struct rte_cryptodev_sym_session *)_sess)->_private;
354 if (unlikely(aesni_mb_set_session_parameters(qp->ops,
355 sess, op->sym->xform) != 0)) {
356 rte_mempool_put(qp->sess_mp, _sess);
359 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
366 * Process a crypto operation and complete a JOB_AES_HMAC job structure for
367 * submission to the multi buffer library for processing.
369 * @param qp queue pair
370 * @param job JOB_AES_HMAC structure to fill
371 * @param m mbuf to process
374 * - Completed JOB_AES_HMAC structure pointer on success
375 * - NULL pointer if completion of JOB_AES_HMAC structure isn't possible
377 static JOB_AES_HMAC *
378 process_crypto_op(struct aesni_mb_qp *qp, struct rte_crypto_op *op,
379 struct aesni_mb_session *session)
383 struct rte_mbuf *m_src = op->sym->m_src, *m_dst;
384 uint16_t m_offset = 0;
386 job = (*qp->ops->job.get_next)(&qp->mb_mgr);
387 if (unlikely(job == NULL))
390 /* Set crypto operation */
391 job->chain_order = session->chain_order;
393 /* Set cipher parameters */
394 job->cipher_direction = session->cipher.direction;
395 job->cipher_mode = session->cipher.mode;
397 job->aes_key_len_in_bytes = session->cipher.key_length_in_bytes;
398 job->aes_enc_key_expanded = session->cipher.expanded_aes_keys.encode;
399 job->aes_dec_key_expanded = session->cipher.expanded_aes_keys.decode;
402 /* Set authentication parameters */
403 job->hash_alg = session->auth.algo;
404 if (job->hash_alg == AES_XCBC) {
405 job->_k1_expanded = session->auth.xcbc.k1_expanded;
406 job->_k2 = session->auth.xcbc.k2;
407 job->_k3 = session->auth.xcbc.k3;
409 job->hashed_auth_key_xor_ipad = session->auth.pads.inner;
410 job->hashed_auth_key_xor_opad = session->auth.pads.outer;
413 /* Mutable crypto operation parameters */
414 if (op->sym->m_dst) {
415 m_src = m_dst = op->sym->m_dst;
417 /* append space for output data to mbuf */
418 char *odata = rte_pktmbuf_append(m_dst,
419 rte_pktmbuf_data_len(op->sym->m_src));
421 MB_LOG_ERR("failed to allocate space in destination "
422 "mbuf for source data");
426 memcpy(odata, rte_pktmbuf_mtod(op->sym->m_src, void*),
427 rte_pktmbuf_data_len(op->sym->m_src));
430 m_offset = op->sym->cipher.data.offset;
433 /* Set digest output location */
434 if (job->hash_alg != NULL_HASH &&
435 session->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
436 job->auth_tag_output = (uint8_t *)rte_pktmbuf_append(m_dst,
437 get_digest_byte_length(job->hash_alg));
439 if (job->auth_tag_output == NULL) {
440 MB_LOG_ERR("failed to allocate space in output mbuf "
445 memset(job->auth_tag_output, 0,
446 sizeof(get_digest_byte_length(job->hash_alg)));
449 job->auth_tag_output = op->sym->auth.digest.data;
453 * Multi-buffer library current only support returning a truncated
454 * digest length as specified in the relevant IPsec RFCs
456 job->auth_tag_output_len_in_bytes =
457 get_truncated_digest_byte_length(job->hash_alg);
459 /* Set IV parameters */
460 job->iv = op->sym->cipher.iv.data;
461 job->iv_len_in_bytes = op->sym->cipher.iv.length;
464 job->src = rte_pktmbuf_mtod(m_src, uint8_t *);
465 job->dst = rte_pktmbuf_mtod_offset(m_dst, uint8_t *, m_offset);
467 job->cipher_start_src_offset_in_bytes = op->sym->cipher.data.offset;
468 job->msg_len_to_cipher_in_bytes = op->sym->cipher.data.length;
470 job->hash_start_src_offset_in_bytes = op->sym->auth.data.offset;
471 job->msg_len_to_hash_in_bytes = op->sym->auth.data.length;
473 /* Set user data to be crypto operation data struct */
475 job->user_data2 = m_dst;
481 * Process a completed job and return rte_mbuf which job processed
483 * @param job JOB_AES_HMAC job to process
486 * - Returns processed mbuf which is trimmed of output digest used in
487 * verification of supplied digest in the case of a HASH_CIPHER operation
488 * - Returns NULL on invalid job
490 static struct rte_crypto_op *
491 post_process_mb_job(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
493 struct rte_crypto_op *op =
494 (struct rte_crypto_op *)job->user_data;
495 struct rte_mbuf *m_dst =
496 (struct rte_mbuf *)job->user_data2;
497 struct aesni_mb_session *sess;
499 if (op == NULL || m_dst == NULL)
502 /* set status as successful by default */
503 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
505 /* check if job has been processed */
506 if (unlikely(job->status != STS_COMPLETED)) {
507 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
509 } else if (job->hash_alg != NULL_HASH) {
510 sess = (struct aesni_mb_session *)op->sym->session->_private;
511 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
512 /* Verify digest if required */
513 if (memcmp(job->auth_tag_output,
514 op->sym->auth.digest.data,
515 job->auth_tag_output_len_in_bytes) != 0)
516 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
518 /* trim area used for digest from mbuf */
519 rte_pktmbuf_trim(m_dst,
520 get_digest_byte_length(job->hash_alg));
524 /* Free session if a session-less crypto op */
525 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
526 rte_mempool_put(qp->sess_mp, op->sym->session);
527 op->sym->session = NULL;
534 * Process a completed JOB_AES_HMAC job and keep processing jobs until
535 * get_completed_job return NULL
537 * @param qp Queue Pair to process
538 * @param job JOB_AES_HMAC job
541 * - Number of processed jobs
544 handle_completed_jobs(struct aesni_mb_qp *qp, JOB_AES_HMAC *job)
546 struct rte_crypto_op *op = NULL;
547 unsigned processed_jobs = 0;
551 op = post_process_mb_job(qp, job);
553 rte_ring_enqueue(qp->processed_ops, (void *)op);
555 qp->stats.dequeue_err_count++;
556 job = (*qp->ops->job.get_completed_job)(&qp->mb_mgr);
559 return processed_jobs;
563 aesni_mb_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
566 struct aesni_mb_session *sess;
567 struct aesni_mb_qp *qp = queue_pair;
569 JOB_AES_HMAC *job = NULL;
571 int i, processed_jobs = 0;
573 for (i = 0; i < nb_ops; i++) {
574 #ifdef RTE_LIBRTE_PMD_AESNI_MB_DEBUG
575 if (unlikely(ops[i]->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
576 MB_LOG_ERR("PMD only supports symmetric crypto "
577 "operation requests, op (%p) is not a "
578 "symmetric operation.", ops[i]);
579 qp->stats.enqueue_err_count++;
583 if (!rte_pktmbuf_is_contiguous(ops[i]->sym->m_src) ||
584 (ops[i]->sym->m_dst != NULL &&
585 !rte_pktmbuf_is_contiguous(
586 ops[i]->sym->m_dst))) {
587 MB_LOG_ERR("PMD supports only contiguous mbufs, "
588 "op (%p) provides noncontiguous mbuf as "
589 "source/destination buffer.\n", ops[i]);
590 ops[i]->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
591 qp->stats.enqueue_err_count++;
596 sess = get_session(qp, ops[i]);
597 if (unlikely(sess == NULL)) {
598 qp->stats.enqueue_err_count++;
602 job = process_crypto_op(qp, ops[i], sess);
603 if (unlikely(job == NULL)) {
604 qp->stats.enqueue_err_count++;
609 job = (*qp->ops->job.submit)(&qp->mb_mgr);
612 * If submit returns a processed job then handle it,
613 * before submitting subsequent jobs
616 processed_jobs += handle_completed_jobs(qp, job);
619 if (processed_jobs == 0)
622 qp->stats.enqueued_count += processed_jobs;
627 * If we haven't processed any jobs in submit loop, then flush jobs
628 * queue to stop the output stalling
630 job = (*qp->ops->job.flush_job)(&qp->mb_mgr);
632 qp->stats.enqueued_count += handle_completed_jobs(qp, job);
638 aesni_mb_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
641 struct aesni_mb_qp *qp = queue_pair;
643 unsigned nb_dequeued;
645 nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
646 (void **)ops, nb_ops);
647 qp->stats.dequeued_count += nb_dequeued;
653 static int cryptodev_aesni_mb_remove(const char *name);
656 cryptodev_aesni_mb_create(const char *name,
657 struct rte_crypto_vdev_init_params *init_params)
659 struct rte_cryptodev *dev;
660 char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
661 struct aesni_mb_private *internals;
662 enum aesni_mb_vector_mode vector_mode;
664 /* Check CPU for support for AES instruction set */
665 if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_AES)) {
666 MB_LOG_ERR("AES instructions not supported by CPU");
670 /* Check CPU for supported vector instruction set */
671 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
672 vector_mode = RTE_AESNI_MB_AVX512;
673 else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
674 vector_mode = RTE_AESNI_MB_AVX2;
675 else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
676 vector_mode = RTE_AESNI_MB_AVX;
677 else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
678 vector_mode = RTE_AESNI_MB_SSE;
680 MB_LOG_ERR("Vector instructions are not supported by CPU");
684 /* create a unique device name */
685 if (create_unique_device_name(crypto_dev_name,
686 RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
687 MB_LOG_ERR("failed to create unique cryptodev name");
692 dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
693 sizeof(struct aesni_mb_private), init_params->socket_id);
695 MB_LOG_ERR("failed to create cryptodev vdev");
699 dev->dev_type = RTE_CRYPTODEV_AESNI_MB_PMD;
700 dev->dev_ops = rte_aesni_mb_pmd_ops;
702 /* register rx/tx burst functions for data path */
703 dev->dequeue_burst = aesni_mb_pmd_dequeue_burst;
704 dev->enqueue_burst = aesni_mb_pmd_enqueue_burst;
706 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
707 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
708 RTE_CRYPTODEV_FF_CPU_AESNI;
710 switch (vector_mode) {
711 case RTE_AESNI_MB_SSE:
712 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
714 case RTE_AESNI_MB_AVX:
715 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX;
717 case RTE_AESNI_MB_AVX2:
718 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX2;
720 case RTE_AESNI_MB_AVX512:
721 dev->feature_flags |= RTE_CRYPTODEV_FF_CPU_AVX512;
727 /* Set vector instructions mode supported */
728 internals = dev->data->dev_private;
730 internals->vector_mode = vector_mode;
731 internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
732 internals->max_nb_sessions = init_params->max_nb_sessions;
736 MB_LOG_ERR("driver %s: cryptodev_aesni_create failed", name);
738 cryptodev_aesni_mb_remove(crypto_dev_name);
744 cryptodev_aesni_mb_probe(const char *name,
745 const char *input_args)
747 struct rte_crypto_vdev_init_params init_params = {
748 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
749 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
753 rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
755 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
756 init_params.socket_id);
757 RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n",
758 init_params.max_nb_queue_pairs);
759 RTE_LOG(INFO, PMD, " Max number of sessions = %d\n",
760 init_params.max_nb_sessions);
762 return cryptodev_aesni_mb_create(name, &init_params);
766 cryptodev_aesni_mb_remove(const char *name)
771 RTE_LOG(INFO, PMD, "Closing AESNI crypto device %s on numa socket %u\n",
772 name, rte_socket_id());
777 static struct rte_vdev_driver cryptodev_aesni_mb_pmd_drv = {
778 .probe = cryptodev_aesni_mb_probe,
779 .remove = cryptodev_aesni_mb_remove
782 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd_drv);
783 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd);
784 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_MB_PMD,
785 "max_nb_queue_pairs=<int> "
786 "max_nb_sessions=<int> "