1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved. 3 */ 4 5 #include <rte_bus_pci.h> 6 #include <rte_bus_vdev.h> 7 #include <rte_common.h> 8 #include <rte_config.h> 9 #include <rte_cryptodev.h> 10 #include <rte_cryptodev_pmd.h> 11 #include <rte_pci.h> 12 #include <rte_dev.h> 13 #include <rte_malloc.h> 14 15 #include "ccp_crypto.h" 16 #include "ccp_dev.h" 17 #include "ccp_pmd_private.h" 18 19 /** 20 * Global static parameter used to find if CCP device is already initialized. 21 */ 22 static unsigned int ccp_pmd_init_done; 23 uint8_t ccp_cryptodev_driver_id; 24 25 struct ccp_pmd_init_params { 26 struct rte_cryptodev_pmd_init_params def_p; 27 bool auth_opt; 28 }; 29 30 #define CCP_CRYPTODEV_PARAM_NAME ("name") 31 #define CCP_CRYPTODEV_PARAM_SOCKET_ID ("socket_id") 32 #define CCP_CRYPTODEV_PARAM_MAX_NB_QP ("max_nb_queue_pairs") 33 #define CCP_CRYPTODEV_PARAM_MAX_NB_SESS ("max_nb_sessions") 34 #define CCP_CRYPTODEV_PARAM_AUTH_OPT ("ccp_auth_opt") 35 36 const char *ccp_pmd_valid_params[] = { 37 CCP_CRYPTODEV_PARAM_NAME, 38 CCP_CRYPTODEV_PARAM_SOCKET_ID, 39 CCP_CRYPTODEV_PARAM_MAX_NB_QP, 40 CCP_CRYPTODEV_PARAM_MAX_NB_SESS, 41 CCP_CRYPTODEV_PARAM_AUTH_OPT, 42 }; 43 44 /** ccp pmd auth option */ 45 enum ccp_pmd_auth_opt { 46 CCP_PMD_AUTH_OPT_CCP = 0, 47 CCP_PMD_AUTH_OPT_CPU, 48 }; 49 50 /** parse integer from integer argument */ 51 static int 52 parse_integer_arg(const char *key __rte_unused, 53 const char *value, void *extra_args) 54 { 55 int *i = (int *) extra_args; 56 57 *i = atoi(value); 58 if (*i < 0) { 59 CCP_LOG_ERR("Argument has to be positive.\n"); 60 return -EINVAL; 61 } 62 63 return 0; 64 } 65 66 /** parse name argument */ 67 static int 68 parse_name_arg(const char *key __rte_unused, 69 const char *value, void *extra_args) 70 { 71 struct rte_cryptodev_pmd_init_params *params = extra_args; 72 73 if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) { 74 CCP_LOG_ERR("Invalid name %s, should be less than " 75 "%u bytes.\n", value, 76 RTE_CRYPTODEV_NAME_MAX_LEN - 1); 77 return -EINVAL; 78 } 79 80 strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN); 81 82 return 0; 83 } 84 85 /** parse authentication operation option */ 86 static int 87 parse_auth_opt_arg(const char *key __rte_unused, 88 const char *value, void *extra_args) 89 { 90 struct ccp_pmd_init_params *params = extra_args; 91 int i; 92 93 i = atoi(value); 94 if (i < CCP_PMD_AUTH_OPT_CCP || i > CCP_PMD_AUTH_OPT_CPU) { 95 CCP_LOG_ERR("Invalid ccp pmd auth option. " 96 "0->auth on CCP(default), " 97 "1->auth on CPU\n"); 98 return -EINVAL; 99 } 100 params->auth_opt = i; 101 return 0; 102 } 103 104 static int 105 ccp_pmd_parse_input_args(struct ccp_pmd_init_params *params, 106 const char *input_args) 107 { 108 struct rte_kvargs *kvlist = NULL; 109 int ret = 0; 110 111 if (params == NULL) 112 return -EINVAL; 113 114 if (input_args) { 115 kvlist = rte_kvargs_parse(input_args, 116 ccp_pmd_valid_params); 117 if (kvlist == NULL) 118 return -1; 119 120 ret = rte_kvargs_process(kvlist, 121 CCP_CRYPTODEV_PARAM_MAX_NB_QP, 122 &parse_integer_arg, 123 ¶ms->def_p.max_nb_queue_pairs); 124 if (ret < 0) 125 goto free_kvlist; 126 127 ret = rte_kvargs_process(kvlist, 128 CCP_CRYPTODEV_PARAM_MAX_NB_SESS, 129 &parse_integer_arg, 130 ¶ms->def_p.max_nb_sessions); 131 if (ret < 0) 132 goto free_kvlist; 133 134 ret = rte_kvargs_process(kvlist, 135 CCP_CRYPTODEV_PARAM_SOCKET_ID, 136 &parse_integer_arg, 137 ¶ms->def_p.socket_id); 138 if (ret < 0) 139 goto free_kvlist; 140 141 ret = rte_kvargs_process(kvlist, 142 CCP_CRYPTODEV_PARAM_NAME, 143 &parse_name_arg, 144 ¶ms->def_p); 145 if (ret < 0) 146 goto free_kvlist; 147 148 ret = rte_kvargs_process(kvlist, 149 CCP_CRYPTODEV_PARAM_AUTH_OPT, 150 &parse_auth_opt_arg, 151 params); 152 if (ret < 0) 153 goto free_kvlist; 154 155 } 156 157 free_kvlist: 158 rte_kvargs_free(kvlist); 159 return ret; 160 } 161 162 static struct ccp_session * 163 get_ccp_session(struct ccp_qp *qp, struct rte_crypto_op *op) 164 { 165 struct ccp_session *sess = NULL; 166 167 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) { 168 if (unlikely(op->sym->session == NULL)) 169 return NULL; 170 171 sess = (struct ccp_session *) 172 get_session_private_data( 173 op->sym->session, 174 ccp_cryptodev_driver_id); 175 } else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) { 176 void *_sess; 177 void *_sess_private_data = NULL; 178 struct ccp_private *internals; 179 180 if (rte_mempool_get(qp->sess_mp, &_sess)) 181 return NULL; 182 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data)) 183 return NULL; 184 185 sess = (struct ccp_session *)_sess_private_data; 186 187 internals = (struct ccp_private *)qp->dev->data->dev_private; 188 if (unlikely(ccp_set_session_parameters(sess, op->sym->xform, 189 internals) != 0)) { 190 rte_mempool_put(qp->sess_mp, _sess); 191 rte_mempool_put(qp->sess_mp, _sess_private_data); 192 sess = NULL; 193 } 194 op->sym->session = (struct rte_cryptodev_sym_session *)_sess; 195 set_session_private_data(op->sym->session, 196 ccp_cryptodev_driver_id, 197 _sess_private_data); 198 } 199 200 return sess; 201 } 202 203 static uint16_t 204 ccp_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, 205 uint16_t nb_ops) 206 { 207 struct ccp_session *sess = NULL; 208 struct ccp_qp *qp = queue_pair; 209 struct ccp_queue *cmd_q; 210 struct rte_cryptodev *dev = qp->dev; 211 uint16_t i, enq_cnt = 0, slots_req = 0; 212 213 if (nb_ops == 0) 214 return 0; 215 216 if (unlikely(rte_ring_full(qp->processed_pkts) != 0)) 217 return 0; 218 219 for (i = 0; i < nb_ops; i++) { 220 sess = get_ccp_session(qp, ops[i]); 221 if (unlikely(sess == NULL) && (i == 0)) { 222 qp->qp_stats.enqueue_err_count++; 223 return 0; 224 } else if (sess == NULL) { 225 nb_ops = i; 226 break; 227 } 228 slots_req += ccp_compute_slot_count(sess); 229 } 230 231 cmd_q = ccp_allot_queue(dev, slots_req); 232 if (unlikely(cmd_q == NULL)) 233 return 0; 234 235 enq_cnt = process_ops_to_enqueue(qp, ops, cmd_q, nb_ops, slots_req); 236 qp->qp_stats.enqueued_count += enq_cnt; 237 return enq_cnt; 238 } 239 240 static uint16_t 241 ccp_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops, 242 uint16_t nb_ops) 243 { 244 struct ccp_qp *qp = queue_pair; 245 uint16_t nb_dequeued = 0, i; 246 247 nb_dequeued = process_ops_to_dequeue(qp, ops, nb_ops); 248 249 /* Free session if a session-less crypto op */ 250 for (i = 0; i < nb_dequeued; i++) 251 if (unlikely(ops[i]->sess_type == 252 RTE_CRYPTO_OP_SESSIONLESS)) { 253 rte_mempool_put(qp->sess_mp, 254 ops[i]->sym->session); 255 ops[i]->sym->session = NULL; 256 } 257 qp->qp_stats.dequeued_count += nb_dequeued; 258 259 return nb_dequeued; 260 } 261 262 /* 263 * The set of PCI devices this driver supports 264 */ 265 static struct rte_pci_id ccp_pci_id[] = { 266 { 267 RTE_PCI_DEVICE(0x1022, 0x1456), /* AMD CCP-5a */ 268 }, 269 { 270 RTE_PCI_DEVICE(0x1022, 0x1468), /* AMD CCP-5b */ 271 }, 272 {.device_id = 0}, 273 }; 274 275 /** Remove ccp pmd */ 276 static int 277 cryptodev_ccp_remove(struct rte_vdev_device *dev) 278 { 279 const char *name; 280 281 ccp_pmd_init_done = 0; 282 name = rte_vdev_device_name(dev); 283 if (name == NULL) 284 return -EINVAL; 285 286 RTE_LOG(INFO, PMD, "Closing ccp device %s on numa socket %u\n", 287 name, rte_socket_id()); 288 289 return 0; 290 } 291 292 /** Create crypto device */ 293 static int 294 cryptodev_ccp_create(const char *name, 295 struct rte_vdev_device *vdev, 296 struct ccp_pmd_init_params *init_params) 297 { 298 struct rte_cryptodev *dev; 299 struct ccp_private *internals; 300 uint8_t cryptodev_cnt = 0; 301 302 if (init_params->def_p.name[0] == '\0') 303 snprintf(init_params->def_p.name, 304 sizeof(init_params->def_p.name), 305 "%s", name); 306 307 dev = rte_cryptodev_pmd_create(init_params->def_p.name, 308 &vdev->device, 309 &init_params->def_p); 310 if (dev == NULL) { 311 CCP_LOG_ERR("failed to create cryptodev vdev"); 312 goto init_error; 313 } 314 315 cryptodev_cnt = ccp_probe_devices(ccp_pci_id); 316 317 if (cryptodev_cnt == 0) { 318 CCP_LOG_ERR("failed to detect CCP crypto device"); 319 goto init_error; 320 } 321 322 printf("CCP : Crypto device count = %d\n", cryptodev_cnt); 323 dev->driver_id = ccp_cryptodev_driver_id; 324 325 /* register rx/tx burst functions for data path */ 326 dev->dev_ops = ccp_pmd_ops; 327 dev->enqueue_burst = ccp_pmd_enqueue_burst; 328 dev->dequeue_burst = ccp_pmd_dequeue_burst; 329 330 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 331 RTE_CRYPTODEV_FF_HW_ACCELERATED | 332 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING; 333 334 internals = dev->data->dev_private; 335 336 internals->max_nb_qpairs = init_params->def_p.max_nb_queue_pairs; 337 internals->max_nb_sessions = init_params->def_p.max_nb_sessions; 338 internals->auth_opt = init_params->auth_opt; 339 internals->crypto_num_dev = cryptodev_cnt; 340 341 return 0; 342 343 init_error: 344 CCP_LOG_ERR("driver %s: %s() failed", 345 init_params->def_p.name, __func__); 346 cryptodev_ccp_remove(vdev); 347 348 return -EFAULT; 349 } 350 351 /** Probe ccp pmd */ 352 static int 353 cryptodev_ccp_probe(struct rte_vdev_device *vdev) 354 { 355 int rc = 0; 356 const char *name; 357 struct ccp_pmd_init_params init_params = { 358 .def_p = { 359 "", 360 sizeof(struct ccp_private), 361 rte_socket_id(), 362 CCP_PMD_MAX_QUEUE_PAIRS, 363 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS 364 }, 365 .auth_opt = CCP_PMD_AUTH_OPT_CCP, 366 }; 367 const char *input_args; 368 369 if (ccp_pmd_init_done) { 370 RTE_LOG(INFO, PMD, "CCP PMD already initialized\n"); 371 return -EFAULT; 372 } 373 name = rte_vdev_device_name(vdev); 374 if (name == NULL) 375 return -EINVAL; 376 377 input_args = rte_vdev_device_args(vdev); 378 ccp_pmd_parse_input_args(&init_params, input_args); 379 init_params.def_p.max_nb_queue_pairs = CCP_PMD_MAX_QUEUE_PAIRS; 380 381 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name, 382 init_params.def_p.socket_id); 383 RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n", 384 init_params.def_p.max_nb_queue_pairs); 385 RTE_LOG(INFO, PMD, "Max number of sessions = %d\n", 386 init_params.def_p.max_nb_sessions); 387 RTE_LOG(INFO, PMD, "Authentication offload to %s\n", 388 ((init_params.auth_opt == 0) ? "CCP" : "CPU")); 389 390 rc = cryptodev_ccp_create(name, vdev, &init_params); 391 if (rc) 392 return rc; 393 ccp_pmd_init_done = 1; 394 return 0; 395 } 396 397 static struct rte_vdev_driver cryptodev_ccp_pmd_drv = { 398 .probe = cryptodev_ccp_probe, 399 .remove = cryptodev_ccp_remove 400 }; 401 402 static struct cryptodev_driver ccp_crypto_drv; 403 404 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CCP_PMD, cryptodev_ccp_pmd_drv); 405 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CCP_PMD, 406 "max_nb_queue_pairs=<int> " 407 "max_nb_sessions=<int> " 408 "socket_id=<int> " 409 "ccp_auth_opt=<int>"); 410 RTE_PMD_REGISTER_CRYPTO_DRIVER(ccp_crypto_drv, cryptodev_ccp_pmd_drv.driver, 411 ccp_cryptodev_driver_id); 412