drivers/crypto/cnxk/cn9k_ipsec.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include <cryptodev_pmd.h>
   6 #include <rte_ip.h>
   7 #include <rte_security.h>
   8 #include <rte_security_driver.h>
   9
  10 #include "cnxk_cryptodev.h"
  11 #include "cnxk_cryptodev_ops.h"
  12 #include "cnxk_ipsec.h"
  13 #include "cnxk_security.h"
  14 #include "cn9k_ipsec.h"
  15
  16 #include "roc_api.h"
  17
  18 static inline int
  19 cn9k_cpt_enq_sa_write(struct cn9k_ipsec_sa *sa, struct cnxk_cpt_qp *qp,
  20                       uint8_t opcode, size_t ctx_len)
  21 {
  22         struct roc_cpt *roc_cpt = qp->lf.roc_cpt;
  23         uint64_t lmtline = qp->lmtline.lmt_base;
  24         uint64_t io_addr = qp->lmtline.io_addr;
  25         uint64_t lmt_status, time_out;
  26         struct cpt_cn9k_res_s *res;
  27         struct cpt_inst_s inst;
  28         uint64_t *mdata;
  29         int ret = 0;
  30
  31         if (unlikely(rte_mempool_get(qp->meta_info.pool, (void **)&mdata) < 0))
  32                 return -ENOMEM;
  33
  34         res = (struct cpt_cn9k_res_s *)RTE_PTR_ALIGN(mdata, 16);
  35         res->compcode = CPT_COMP_NOT_DONE;
  36
  37         inst.w4.s.opcode_major = opcode;
  38         inst.w4.s.opcode_minor = ctx_len >> 3;
  39         inst.w4.s.param1 = 0;
  40         inst.w4.s.param2 = 0;
  41         inst.w4.s.dlen = ctx_len;
  42         inst.dptr = rte_mempool_virt2iova(sa);
  43         inst.rptr = 0;
  44         inst.w7.s.cptr = rte_mempool_virt2iova(sa);
  45         inst.w7.s.egrp = roc_cpt->eng_grp[CPT_ENG_TYPE_IE];
  46
  47         inst.w0.u64 = 0;
  48         inst.w2.u64 = 0;
  49         inst.w3.u64 = 0;
  50         inst.res_addr = rte_mempool_virt2iova(res);
  51
  52         rte_io_wmb();
  53
  54         do {
  55                 /* Copy CPT command to LMTLINE */
  56                 roc_lmt_mov((void *)lmtline, &inst, 2);
  57                 lmt_status = roc_lmt_submit_ldeor(io_addr);
  58         } while (lmt_status == 0);
  59
  60         time_out = rte_get_timer_cycles() +
  61                    DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
  62
  63         while (res->compcode == CPT_COMP_NOT_DONE) {
  64                 if (rte_get_timer_cycles() > time_out) {
  65                         rte_mempool_put(qp->meta_info.pool, mdata);
  66                         plt_err("Request timed out");
  67                         return -ETIMEDOUT;
  68                 }
  69                 rte_io_rmb();
  70         }
  71
  72         if (unlikely(res->compcode != CPT_COMP_GOOD)) {
  73                 ret = res->compcode;
  74                 switch (ret) {
  75                 case CPT_COMP_INSTERR:
  76                         plt_err("Request failed with instruction error");
  77                         break;
  78                 case CPT_COMP_FAULT:
  79                         plt_err("Request failed with DMA fault");
  80                         break;
  81                 case CPT_COMP_HWERR:
  82                         plt_err("Request failed with hardware error");
  83                         break;
  84                 default:
  85                         plt_err("Request failed with unknown hardware "
  86                                 "completion code : 0x%x",
  87                                 ret);
  88                 }
  89                 ret = -EINVAL;
  90                 goto mempool_put;
  91         }
  92
  93         if (unlikely(res->uc_compcode != ROC_IE_ON_UCC_SUCCESS)) {
  94                 ret = res->uc_compcode;
  95                 switch (ret) {
  96                 case ROC_IE_ON_AUTH_UNSUPPORTED:
  97                         plt_err("Invalid auth type");
  98                         break;
  99                 case ROC_IE_ON_ENCRYPT_UNSUPPORTED:
 100                         plt_err("Invalid encrypt type");
 101                         break;
 102                 default:
 103                         plt_err("Request failed with unknown microcode "
 104                                 "completion code : 0x%x",
 105                                 ret);
 106                 }
 107                 ret = -ENOTSUP;
 108         }
 109
 110 mempool_put:
 111         rte_mempool_put(qp->meta_info.pool, mdata);
 112         return ret;
 113 }
 114
 115 static inline int
 116 ipsec_sa_ctl_set(struct rte_security_ipsec_xform *ipsec,
 117                  struct rte_crypto_sym_xform *crypto_xform,
 118                  struct roc_ie_on_sa_ctl *ctl)
 119 {
 120         struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
 121         int aes_key_len = 0;
 122
 123         if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
 124                 ctl->direction = ROC_IE_SA_DIR_OUTBOUND;
 125                 cipher_xform = crypto_xform;
 126                 auth_xform = crypto_xform->next;
 127         } else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
 128                 ctl->direction = ROC_IE_SA_DIR_INBOUND;
 129                 auth_xform = crypto_xform;
 130                 cipher_xform = crypto_xform->next;
 131         } else {
 132                 return -EINVAL;
 133         }
 134
 135         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
 136                 if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4)
 137                         ctl->outer_ip_ver = ROC_IE_SA_IP_VERSION_4;
 138                 else if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV6)
 139                         ctl->outer_ip_ver = ROC_IE_SA_IP_VERSION_6;
 140                 else
 141                         return -EINVAL;
 142         }
 143
 144         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT) {
 145                 ctl->ipsec_mode = ROC_IE_SA_MODE_TRANSPORT;
 146                 ctl->outer_ip_ver = ROC_IE_SA_IP_VERSION_4;
 147         } else if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL)
 148                 ctl->ipsec_mode = ROC_IE_SA_MODE_TUNNEL;
 149         else
 150                 return -EINVAL;
 151
 152         if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH)
 153                 ctl->ipsec_proto = ROC_IE_SA_PROTOCOL_AH;
 154         else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP)
 155                 ctl->ipsec_proto = ROC_IE_SA_PROTOCOL_ESP;
 156         else
 157                 return -EINVAL;
 158
 159         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 160                 switch (crypto_xform->aead.algo) {
 161                 case RTE_CRYPTO_AEAD_AES_GCM:
 162                         ctl->enc_type = ROC_IE_ON_SA_ENC_AES_GCM;
 163                         aes_key_len = crypto_xform->aead.key.length;
 164                         break;
 165                 default:
 166                         plt_err("Unsupported AEAD algorithm");
 167                         return -ENOTSUP;
 168                 }
 169         } else {
 170                 switch (cipher_xform->cipher.algo) {
 171                 case RTE_CRYPTO_CIPHER_NULL:
 172                         ctl->enc_type = ROC_IE_ON_SA_ENC_NULL;
 173                         break;
 174                 case RTE_CRYPTO_CIPHER_AES_CBC:
 175                         ctl->enc_type = ROC_IE_ON_SA_ENC_AES_CBC;
 176                         aes_key_len = cipher_xform->cipher.key.length;
 177                         break;
 178                 case RTE_CRYPTO_CIPHER_AES_CTR:
 179                         ctl->enc_type = ROC_IE_ON_SA_ENC_AES_CTR;
 180                         aes_key_len = cipher_xform->cipher.key.length;
 181                         break;
 182                 default:
 183                         plt_err("Unsupported cipher algorithm");
 184                         return -ENOTSUP;
 185                 }
 186
 187                 switch (auth_xform->auth.algo) {
 188                 case RTE_CRYPTO_AUTH_NULL:
 189                         ctl->auth_type = ROC_IE_ON_SA_AUTH_NULL;
 190                         break;
 191                 case RTE_CRYPTO_AUTH_MD5_HMAC:
 192                         ctl->auth_type = ROC_IE_ON_SA_AUTH_MD5;
 193                         break;
 194                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 195                         ctl->auth_type = ROC_IE_ON_SA_AUTH_SHA1;
 196                         break;
 197                 case RTE_CRYPTO_AUTH_SHA224_HMAC:
 198                         ctl->auth_type = ROC_IE_ON_SA_AUTH_SHA2_224;
 199                         break;
 200                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 201                         ctl->auth_type = ROC_IE_ON_SA_AUTH_SHA2_256;
 202                         break;
 203                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 204                         ctl->auth_type = ROC_IE_ON_SA_AUTH_SHA2_384;
 205                         break;
 206                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 207                         ctl->auth_type = ROC_IE_ON_SA_AUTH_SHA2_512;
 208                         break;
 209                 case RTE_CRYPTO_AUTH_AES_GMAC:
 210                         ctl->auth_type = ROC_IE_ON_SA_AUTH_AES_GMAC;
 211                         break;
 212                 case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
 213                         ctl->auth_type = ROC_IE_ON_SA_AUTH_AES_XCBC_128;
 214                         break;
 215                 default:
 216                         plt_err("Unsupported auth algorithm");
 217                         return -ENOTSUP;
 218                 }
 219         }
 220
 221         /* Set AES key length */
 222         if (ctl->enc_type == ROC_IE_ON_SA_ENC_AES_CBC ||
 223             ctl->enc_type == ROC_IE_ON_SA_ENC_AES_CCM ||
 224             ctl->enc_type == ROC_IE_ON_SA_ENC_AES_CTR ||
 225             ctl->enc_type == ROC_IE_ON_SA_ENC_AES_GCM ||
 226             ctl->auth_type == ROC_IE_ON_SA_AUTH_AES_GMAC) {
 227                 switch (aes_key_len) {
 228                 case 16:
 229                         ctl->aes_key_len = ROC_IE_SA_AES_KEY_LEN_128;
 230                         break;
 231                 case 24:
 232                         ctl->aes_key_len = ROC_IE_SA_AES_KEY_LEN_192;
 233                         break;
 234                 case 32:
 235                         ctl->aes_key_len = ROC_IE_SA_AES_KEY_LEN_256;
 236                         break;
 237                 default:
 238                         plt_err("Invalid AES key length");
 239                         return -EINVAL;
 240                 }
 241         }
 242
 243         if (ipsec->options.esn)
 244                 ctl->esn_en = 1;
 245
 246         if (ipsec->options.udp_encap == 1)
 247                 ctl->encap_type = ROC_IE_ON_SA_ENCAP_UDP;
 248
 249         ctl->copy_df = ipsec->options.copy_df;
 250
 251         ctl->spi = rte_cpu_to_be_32(ipsec->spi);
 252
 253         rte_io_wmb();
 254
 255         ctl->valid = 1;
 256
 257         return 0;
 258 }
 259
 260 static inline int
 261 fill_ipsec_common_sa(struct rte_security_ipsec_xform *ipsec,
 262                      struct rte_crypto_sym_xform *crypto_xform,
 263                      struct roc_ie_on_common_sa *common_sa)
 264 {
 265         struct rte_crypto_sym_xform *cipher_xform;
 266         const uint8_t *cipher_key;
 267         int cipher_key_len = 0;
 268         int ret;
 269
 270         if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
 271                 cipher_xform = crypto_xform->next;
 272         else
 273                 cipher_xform = crypto_xform;
 274
 275         ret = ipsec_sa_ctl_set(ipsec, crypto_xform, &common_sa->ctl);
 276         if (ret)
 277                 return ret;
 278
 279         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 280                 if (crypto_xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM)
 281                         memcpy(common_sa->iv.gcm.nonce, &ipsec->salt, 4);
 282                 cipher_key = crypto_xform->aead.key.data;
 283                 cipher_key_len = crypto_xform->aead.key.length;
 284         } else {
 285                 cipher_key = cipher_xform->cipher.key.data;
 286                 cipher_key_len = cipher_xform->cipher.key.length;
 287         }
 288
 289         if (cipher_key_len != 0)
 290                 memcpy(common_sa->cipher_key, cipher_key, cipher_key_len);
 291
 292         return 0;
 293 }
 294
 295 static int
 296 cn9k_ipsec_outb_sa_create(struct cnxk_cpt_qp *qp,
 297                           struct rte_security_ipsec_xform *ipsec,
 298                           struct rte_crypto_sym_xform *crypto_xform,
 299                           struct rte_security_session *sec_sess)
 300 {
 301         struct rte_crypto_sym_xform *auth_xform = crypto_xform->next;
 302         struct roc_ie_on_ip_template *template = NULL;
 303         struct roc_cpt *roc_cpt = qp->lf.roc_cpt;
 304         union roc_on_ipsec_outb_param1 param1;
 305         struct cnxk_cpt_inst_tmpl *inst_tmpl;
 306         struct roc_ie_on_outb_sa *out_sa;
 307         struct cn9k_sec_session *sess;
 308         struct roc_ie_on_sa_ctl *ctl;
 309         struct cn9k_ipsec_sa *sa;
 310         struct rte_ipv6_hdr *ip6;
 311         struct rte_ipv4_hdr *ip4;
 312         const uint8_t *auth_key;
 313         union cpt_inst_w4 w4;
 314         union cpt_inst_w7 w7;
 315         int auth_key_len = 0;
 316         size_t ctx_len;
 317         int ret;
 318
 319         sess = get_sec_session_private_data(sec_sess);
 320         sa = &sess->sa;
 321         out_sa = &sa->out_sa;
 322         ctl = &out_sa->common_sa.ctl;
 323
 324         memset(sa, 0, sizeof(struct cn9k_ipsec_sa));
 325
 326         /* Initialize lookaside IPsec private data */
 327         sa->dir = RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
 328         /* Start ip id from 1 */
 329         sa->ip_id = 1;
 330         sa->seq_lo = 1;
 331         sa->seq_hi = 0;
 332
 333         ret = fill_ipsec_common_sa(ipsec, crypto_xform, &out_sa->common_sa);
 334         if (ret)
 335                 return ret;
 336
 337         ret = cnxk_ipsec_outb_rlens_get(&sa->rlens, ipsec, crypto_xform);
 338         if (ret)
 339                 return ret;
 340
 341         if (ctl->enc_type == ROC_IE_ON_SA_ENC_AES_GCM ||
 342             ctl->auth_type == ROC_IE_ON_SA_AUTH_NULL) {
 343                 template = &out_sa->aes_gcm.template;
 344                 ctx_len = offsetof(struct roc_ie_on_outb_sa, aes_gcm.template);
 345         } else {
 346                 switch (ctl->auth_type) {
 347                 case ROC_IE_ON_SA_AUTH_SHA1:
 348                         template = &out_sa->sha1.template;
 349                         ctx_len = offsetof(struct roc_ie_on_outb_sa,
 350                                            sha1.template);
 351                         break;
 352                 case ROC_IE_ON_SA_AUTH_SHA2_256:
 353                 case ROC_IE_ON_SA_AUTH_SHA2_384:
 354                 case ROC_IE_ON_SA_AUTH_SHA2_512:
 355                         template = &out_sa->sha2.template;
 356                         ctx_len = offsetof(struct roc_ie_on_outb_sa,
 357                                            sha2.template);
 358                         break;
 359                 case ROC_IE_ON_SA_AUTH_AES_XCBC_128:
 360                         template = &out_sa->aes_xcbc.template;
 361                         ctx_len = offsetof(struct roc_ie_on_outb_sa,
 362                                            aes_xcbc.template);
 363                         break;
 364                 default:
 365                         plt_err("Unsupported auth algorithm");
 366                         return -EINVAL;
 367                 }
 368         }
 369
 370         ip4 = (struct rte_ipv4_hdr *)&template->ip4.ipv4_hdr;
 371         if (ipsec->options.udp_encap) {
 372                 ip4->next_proto_id = IPPROTO_UDP;
 373                 template->ip4.udp_src = rte_be_to_cpu_16(4500);
 374                 template->ip4.udp_dst = rte_be_to_cpu_16(4500);
 375         } else {
 376                 ip4->next_proto_id = IPPROTO_ESP;
 377         }
 378
 379         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
 380                 if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4) {
 381                         uint16_t frag_off = 0;
 382                         ctx_len += sizeof(template->ip4);
 383
 384                         ip4->version_ihl = RTE_IPV4_VHL_DEF;
 385                         ip4->time_to_live = ipsec->tunnel.ipv4.ttl;
 386                         ip4->type_of_service |= (ipsec->tunnel.ipv4.dscp << 2);
 387                         if (ipsec->tunnel.ipv4.df)
 388                                 frag_off |= RTE_IPV4_HDR_DF_FLAG;
 389                         ip4->fragment_offset = rte_cpu_to_be_16(frag_off);
 390
 391                         memcpy(&ip4->src_addr, &ipsec->tunnel.ipv4.src_ip,
 392                                sizeof(struct in_addr));
 393                         memcpy(&ip4->dst_addr, &ipsec->tunnel.ipv4.dst_ip,
 394                                sizeof(struct in_addr));
 395                 } else if (ipsec->tunnel.type ==
 396                            RTE_SECURITY_IPSEC_TUNNEL_IPV6) {
 397                         ctx_len += sizeof(template->ip6);
 398
 399                         ip6 = (struct rte_ipv6_hdr *)&template->ip6.ipv6_hdr;
 400                         if (ipsec->options.udp_encap) {
 401                                 ip6->proto = IPPROTO_UDP;
 402                                 template->ip6.udp_src = rte_be_to_cpu_16(4500);
 403                                 template->ip6.udp_dst = rte_be_to_cpu_16(4500);
 404                         } else {
 405                                 ip6->proto = (ipsec->proto ==
 406                                               RTE_SECURITY_IPSEC_SA_PROTO_ESP) ?
 407                                                      IPPROTO_ESP :
 408                                                      IPPROTO_AH;
 409                         }
 410                         ip6->vtc_flow =
 411                                 rte_cpu_to_be_32(0x60000000 |
 412                                                  ((ipsec->tunnel.ipv6.dscp
 413                                                    << RTE_IPV6_HDR_TC_SHIFT) &
 414                                                   RTE_IPV6_HDR_TC_MASK) |
 415                                                  ((ipsec->tunnel.ipv6.flabel
 416                                                    << RTE_IPV6_HDR_FL_SHIFT) &
 417                                                   RTE_IPV6_HDR_FL_MASK));
 418                         ip6->hop_limits = ipsec->tunnel.ipv6.hlimit;
 419                         memcpy(&ip6->src_addr, &ipsec->tunnel.ipv6.src_addr,
 420                                sizeof(struct in6_addr));
 421                         memcpy(&ip6->dst_addr, &ipsec->tunnel.ipv6.dst_addr,
 422                                sizeof(struct in6_addr));
 423                 }
 424         } else
 425                 ctx_len += sizeof(template->ip4);
 426
 427         ctx_len += RTE_ALIGN_CEIL(ctx_len, 8);
 428
 429         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 430                 sa->cipher_iv_off = crypto_xform->aead.iv.offset;
 431                 sa->cipher_iv_len = crypto_xform->aead.iv.length;
 432         } else {
 433                 sa->cipher_iv_off = crypto_xform->cipher.iv.offset;
 434                 sa->cipher_iv_len = crypto_xform->cipher.iv.length;
 435
 436                 auth_key = auth_xform->auth.key.data;
 437                 auth_key_len = auth_xform->auth.key.length;
 438
 439                 switch (auth_xform->auth.algo) {
 440                 case RTE_CRYPTO_AUTH_NULL:
 441                         break;
 442                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 443                         memcpy(out_sa->sha1.hmac_key, auth_key, auth_key_len);
 444                         break;
 445                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 446                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 447                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 448                         memcpy(out_sa->sha2.hmac_key, auth_key, auth_key_len);
 449                         break;
 450                 case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
 451                         memcpy(out_sa->aes_xcbc.key, auth_key, auth_key_len);
 452                         break;
 453                 default:
 454                         plt_err("Unsupported auth algorithm %u",
 455                                 auth_xform->auth.algo);
 456                         return -ENOTSUP;
 457                 }
 458         }
 459
 460         inst_tmpl = &sa->inst;
 461
 462         w4.u64 = 0;
 463         w4.s.opcode_major = ROC_IE_ON_MAJOR_OP_PROCESS_OUTBOUND_IPSEC;
 464         w4.s.opcode_minor = ctx_len >> 3;
 465
 466         param1.u16 = 0;
 467         param1.s.ikev2 = 1;
 468         param1.s.per_pkt_iv = 1;
 469         w4.s.param1 = param1.u16;
 470
 471         inst_tmpl->w4 = w4.u64;
 472
 473         w7.u64 = 0;
 474         w7.s.egrp = roc_cpt->eng_grp[CPT_ENG_TYPE_IE];
 475         w7.s.cptr = rte_mempool_virt2iova(out_sa);
 476         inst_tmpl->w7 = w7.u64;
 477
 478         return cn9k_cpt_enq_sa_write(
 479                 sa, qp, ROC_IE_ON_MAJOR_OP_WRITE_IPSEC_OUTBOUND, ctx_len);
 480 }
 481
 482 static int
 483 cn9k_ipsec_inb_sa_create(struct cnxk_cpt_qp *qp,
 484                          struct rte_security_ipsec_xform *ipsec,
 485                          struct rte_crypto_sym_xform *crypto_xform,
 486                          struct rte_security_session *sec_sess)
 487 {
 488         struct rte_crypto_sym_xform *auth_xform = crypto_xform;
 489         struct roc_cpt *roc_cpt = qp->lf.roc_cpt;
 490         union roc_on_ipsec_inb_param2 param2;
 491         struct cnxk_cpt_inst_tmpl *inst_tmpl;
 492         struct roc_ie_on_inb_sa *in_sa;
 493         struct cn9k_sec_session *sess;
 494         struct cn9k_ipsec_sa *sa;
 495         const uint8_t *auth_key;
 496         union cpt_inst_w4 w4;
 497         union cpt_inst_w7 w7;
 498         int auth_key_len = 0;
 499         size_t ctx_len = 0;
 500         int ret;
 501
 502         sess = get_sec_session_private_data(sec_sess);
 503         sa = &sess->sa;
 504         in_sa = &sa->in_sa;
 505
 506         memset(sa, 0, sizeof(struct cn9k_ipsec_sa));
 507
 508         sa->dir = RTE_SECURITY_IPSEC_SA_DIR_INGRESS;
 509         sa->replay_win_sz = ipsec->replay_win_sz;
 510
 511         ret = fill_ipsec_common_sa(ipsec, crypto_xform, &in_sa->common_sa);
 512         if (ret)
 513                 return ret;
 514
 515         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD ||
 516             auth_xform->auth.algo == RTE_CRYPTO_AUTH_NULL) {
 517                 ctx_len = offsetof(struct roc_ie_on_inb_sa,
 518                                    sha1_or_gcm.hmac_key[0]);
 519         } else {
 520                 auth_key = auth_xform->auth.key.data;
 521                 auth_key_len = auth_xform->auth.key.length;
 522
 523                 switch (auth_xform->auth.algo) {
 524                 case RTE_CRYPTO_AUTH_NULL:
 525                         break;
 526                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 527                         memcpy(in_sa->sha1_or_gcm.hmac_key, auth_key,
 528                                auth_key_len);
 529                         ctx_len = offsetof(struct roc_ie_on_inb_sa,
 530                                            sha1_or_gcm.selector);
 531                         break;
 532                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 533                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 534                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 535                         memcpy(in_sa->sha2.hmac_key, auth_key, auth_key_len);
 536                         ctx_len = offsetof(struct roc_ie_on_inb_sa,
 537                                            sha2.selector);
 538                         break;
 539                 case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
 540                         memcpy(in_sa->aes_xcbc.key, auth_key, auth_key_len);
 541                         ctx_len = offsetof(struct roc_ie_on_inb_sa,
 542                                            aes_xcbc.selector);
 543                         break;
 544                 default:
 545                         plt_err("Unsupported auth algorithm %u",
 546                                 auth_xform->auth.algo);
 547                         return -ENOTSUP;
 548                 }
 549         }
 550
 551         inst_tmpl = &sa->inst;
 552
 553         w4.u64 = 0;
 554         w4.s.opcode_major = ROC_IE_ON_MAJOR_OP_PROCESS_INBOUND_IPSEC;
 555         w4.s.opcode_minor = ctx_len >> 3;
 556
 557         param2.u16 = 0;
 558         param2.s.ikev2 = 1;
 559         w4.s.param2 = param2.u16;
 560
 561         inst_tmpl->w4 = w4.u64;
 562
 563         w7.u64 = 0;
 564         w7.s.egrp = roc_cpt->eng_grp[CPT_ENG_TYPE_IE];
 565         w7.s.cptr = rte_mempool_virt2iova(in_sa);
 566         inst_tmpl->w7 = w7.u64;
 567
 568         if (sa->replay_win_sz) {
 569                 if (sa->replay_win_sz > CNXK_ON_AR_WIN_SIZE_MAX) {
 570                         plt_err("Replay window size:%u is not supported",
 571                                 sa->replay_win_sz);
 572                         return -ENOTSUP;
 573                 }
 574
 575                 /* Set window bottom to 1, base and top to size of window */
 576                 sa->ar.winb = 1;
 577                 sa->ar.wint = sa->replay_win_sz;
 578                 sa->ar.base = sa->replay_win_sz;
 579
 580                 in_sa->common_sa.esn_low = 0;
 581                 in_sa->common_sa.esn_hi = 0;
 582         }
 583
 584         return cn9k_cpt_enq_sa_write(
 585                 sa, qp, ROC_IE_ON_MAJOR_OP_WRITE_IPSEC_INBOUND, ctx_len);
 586 }
 587
 588 static inline int
 589 cn9k_ipsec_xform_verify(struct rte_security_ipsec_xform *ipsec,
 590                         struct rte_crypto_sym_xform *crypto)
 591 {
 592         if (ipsec->life.bytes_hard_limit != 0 ||
 593             ipsec->life.bytes_soft_limit != 0 ||
 594             ipsec->life.packets_hard_limit != 0 ||
 595             ipsec->life.packets_soft_limit != 0)
 596                 return -ENOTSUP;
 597
 598         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT) {
 599                 enum rte_crypto_sym_xform_type type = crypto->type;
 600
 601                 if (type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 602                         if ((crypto->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) &&
 603                             (crypto->aead.key.length == 32)) {
 604                                 plt_err("Transport mode AES-256-GCM is not supported");
 605                                 return -ENOTSUP;
 606                         }
 607                 } else {
 608                         struct rte_crypto_cipher_xform *cipher;
 609                         struct rte_crypto_auth_xform *auth;
 610
 611                         if (crypto->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
 612                                 cipher = &crypto->cipher;
 613                                 auth = &crypto->next->auth;
 614                         } else {
 615                                 cipher = &crypto->next->cipher;
 616                                 auth = &crypto->auth;
 617                         }
 618
 619                         if ((cipher->algo == RTE_CRYPTO_CIPHER_AES_CBC) &&
 620                             (auth->algo == RTE_CRYPTO_AUTH_SHA256_HMAC)) {
 621                                 plt_err("Transport mode AES-CBC SHA2 HMAC 256 is not supported");
 622                                 return -ENOTSUP;
 623                         }
 624
 625                         if ((cipher->algo == RTE_CRYPTO_CIPHER_AES_CBC) &&
 626                             (auth->algo == RTE_CRYPTO_AUTH_SHA384_HMAC)) {
 627                                 plt_err("Transport mode AES-CBC SHA2 HMAC 384 is not supported");
 628                                 return -ENOTSUP;
 629                         }
 630
 631                         if ((cipher->algo == RTE_CRYPTO_CIPHER_AES_CBC) &&
 632                             (auth->algo == RTE_CRYPTO_AUTH_SHA512_HMAC)) {
 633                                 plt_err("Transport mode AES-CBC SHA2 HMAC 512 is not supported");
 634                                 return -ENOTSUP;
 635                         }
 636
 637                         if ((cipher->algo == RTE_CRYPTO_CIPHER_AES_CBC) &&
 638                             (auth->algo == RTE_CRYPTO_AUTH_AES_XCBC_MAC)) {
 639                                 plt_err("Transport mode AES-CBC AES-XCBC is not supported");
 640                                 return -ENOTSUP;
 641                         }
 642                 }
 643         }
 644
 645         return 0;
 646 }
 647
 648 static int
 649 cn9k_ipsec_session_create(void *dev,
 650                           struct rte_security_ipsec_xform *ipsec_xform,
 651                           struct rte_crypto_sym_xform *crypto_xform,
 652                           struct rte_security_session *sess)
 653 {
 654         struct rte_cryptodev *crypto_dev = dev;
 655         struct cnxk_cpt_qp *qp;
 656         int ret;
 657
 658         qp = crypto_dev->data->queue_pairs[0];
 659         if (qp == NULL) {
 660                 plt_err("CPT queue pairs need to be setup for creating security"
 661                         " session");
 662                 return -EPERM;
 663         }
 664
 665         ret = cnxk_ipsec_xform_verify(ipsec_xform, crypto_xform);
 666         if (ret)
 667                 return ret;
 668
 669         ret = cn9k_ipsec_xform_verify(ipsec_xform, crypto_xform);
 670         if (ret)
 671                 return ret;
 672
 673         if (ipsec_xform->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
 674                 return cn9k_ipsec_inb_sa_create(qp, ipsec_xform, crypto_xform,
 675                                                 sess);
 676         else
 677                 return cn9k_ipsec_outb_sa_create(qp, ipsec_xform, crypto_xform,
 678                                                  sess);
 679 }
 680
 681 static int
 682 cn9k_sec_session_create(void *device, struct rte_security_session_conf *conf,
 683                         struct rte_security_session *sess,
 684                         struct rte_mempool *mempool)
 685 {
 686         struct cn9k_sec_session *priv;
 687         int ret;
 688
 689         if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL)
 690                 return -EINVAL;
 691
 692         if (rte_mempool_get(mempool, (void **)&priv)) {
 693                 plt_err("Could not allocate security session private data");
 694                 return -ENOMEM;
 695         }
 696
 697         memset(priv, 0, sizeof(*priv));
 698
 699         set_sec_session_private_data(sess, priv);
 700
 701         if (conf->protocol != RTE_SECURITY_PROTOCOL_IPSEC) {
 702                 ret = -ENOTSUP;
 703                 goto mempool_put;
 704         }
 705
 706         ret = cn9k_ipsec_session_create(device, &conf->ipsec,
 707                                         conf->crypto_xform, sess);
 708         if (ret)
 709                 goto mempool_put;
 710
 711         return 0;
 712
 713 mempool_put:
 714         rte_mempool_put(mempool, priv);
 715         set_sec_session_private_data(sess, NULL);
 716         return ret;
 717 }
 718
 719 static int
 720 cn9k_sec_session_destroy(void *device __rte_unused,
 721                          struct rte_security_session *sess)
 722 {
 723         struct roc_ie_on_outb_sa *out_sa;
 724         struct cn9k_sec_session *priv;
 725         struct rte_mempool *sess_mp;
 726         struct roc_ie_on_sa_ctl *ctl;
 727         struct cn9k_ipsec_sa *sa;
 728
 729         priv = get_sec_session_private_data(sess);
 730         if (priv == NULL)
 731                 return 0;
 732
 733         sa = &priv->sa;
 734         out_sa = &sa->out_sa;
 735
 736         ctl = &out_sa->common_sa.ctl;
 737         ctl->valid = 0;
 738
 739         rte_io_wmb();
 740
 741         sess_mp = rte_mempool_from_obj(priv);
 742
 743         memset(priv, 0, sizeof(*priv));
 744
 745         set_sec_session_private_data(sess, NULL);
 746         rte_mempool_put(sess_mp, priv);
 747
 748         return 0;
 749 }
 750
 751 static unsigned int
 752 cn9k_sec_session_get_size(void *device __rte_unused)
 753 {
 754         return sizeof(struct cn9k_sec_session);
 755 }
 756
 757 /* Update platform specific security ops */
 758 void
 759 cn9k_sec_ops_override(void)
 760 {
 761         /* Update platform specific ops */
 762         cnxk_sec_ops.session_create = cn9k_sec_session_create;
 763         cnxk_sec_ops.session_destroy = cn9k_sec_session_destroy;
 764         cnxk_sec_ops.session_get_size = cn9k_sec_session_get_size;
 765 }