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