drivers/common/cnxk/roc_nix_inl_dev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "roc_api.h"
   6 #include "roc_priv.h"
   7
   8 #include <unistd.h>
   9
  10 #define NIX_AURA_DROP_PC_DFLT 40
  11
  12 /* Default Rx Config for Inline NIX LF */
  13 #define NIX_INL_LF_RX_CFG                                                      \
  14         (ROC_NIX_LF_RX_CFG_DROP_RE | ROC_NIX_LF_RX_CFG_L2_LEN_ERR |            \
  15          ROC_NIX_LF_RX_CFG_IP6_UDP_OPT | ROC_NIX_LF_RX_CFG_DIS_APAD |          \
  16          ROC_NIX_LF_RX_CFG_CSUM_IL4 | ROC_NIX_LF_RX_CFG_CSUM_OL4 |             \
  17          ROC_NIX_LF_RX_CFG_LEN_IL4 | ROC_NIX_LF_RX_CFG_LEN_IL3 |               \
  18          ROC_NIX_LF_RX_CFG_LEN_OL4 | ROC_NIX_LF_RX_CFG_LEN_OL3)
  19
  20 extern uint32_t soft_exp_consumer_cnt;
  21 static bool soft_exp_poll_thread_exit = true;
  22
  23 uint16_t
  24 nix_inl_dev_pffunc_get(void)
  25 {
  26         struct idev_cfg *idev = idev_get_cfg();
  27         struct nix_inl_dev *inl_dev;
  28
  29         if (idev != NULL) {
  30                 inl_dev = idev->nix_inl_dev;
  31                 if (inl_dev)
  32                         return inl_dev->dev.pf_func;
  33         }
  34         return 0;
  35 }
  36
  37 uint16_t
  38 roc_nix_inl_dev_pffunc_get(void)
  39 {
  40         return nix_inl_dev_pffunc_get();
  41 }
  42
  43 static void
  44 nix_inl_selftest_work_cb(uint64_t *gw, void *args, uint32_t soft_exp_event)
  45 {
  46         uintptr_t work = gw[1];
  47
  48         (void)soft_exp_event;
  49         *((uintptr_t *)args + (gw[0] & 0x1)) = work;
  50
  51         plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
  52 }
  53
  54 static int
  55 nix_inl_selftest(void)
  56 {
  57         struct idev_cfg *idev = idev_get_cfg();
  58         roc_nix_inl_sso_work_cb_t save_cb;
  59         static uintptr_t work_arr[2];
  60         struct nix_inl_dev *inl_dev;
  61         void *save_cb_args;
  62         uint64_t add_work0;
  63         int rc = 0;
  64
  65         if (idev == NULL)
  66                 return -ENOTSUP;
  67
  68         inl_dev = idev->nix_inl_dev;
  69         if (inl_dev == NULL)
  70                 return -ENOTSUP;
  71
  72         plt_info("Performing nix inl self test");
  73
  74         /* Save and update cb to test cb */
  75         save_cb = inl_dev->work_cb;
  76         save_cb_args = inl_dev->cb_args;
  77         inl_dev->work_cb = nix_inl_selftest_work_cb;
  78         inl_dev->cb_args = work_arr;
  79
  80         plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
  81
  82 #define WORK_MAGIC1 0x335577ff0
  83 #define WORK_MAGIC2 0xdeadbeef0
  84
  85         /* Add work */
  86         add_work0 = ((uint64_t)(SSO_TT_ORDERED) << 32) | 0x0;
  87         roc_store_pair(add_work0, WORK_MAGIC1, inl_dev->sso_base);
  88         add_work0 = ((uint64_t)(SSO_TT_ORDERED) << 32) | 0x1;
  89         roc_store_pair(add_work0, WORK_MAGIC2, inl_dev->sso_base);
  90
  91         plt_delay_ms(10000);
  92
  93         /* Check if we got expected work */
  94         if (work_arr[0] != WORK_MAGIC1 || work_arr[1] != WORK_MAGIC2) {
  95                 plt_err("Failed to get expected work, [0]=%p [1]=%p",
  96                         (void *)work_arr[0], (void *)work_arr[1]);
  97                 rc = -EFAULT;
  98                 goto exit;
  99         }
 100
 101         plt_info("Work, [0]=%p [1]=%p", (void *)work_arr[0],
 102                  (void *)work_arr[1]);
 103
 104 exit:
 105         /* Restore state */
 106         inl_dev->work_cb = save_cb;
 107         inl_dev->cb_args = save_cb_args;
 108         return rc;
 109 }
 110
 111 static int
 112 nix_inl_cpt_ctx_cache_sync(struct nix_inl_dev *inl_dev)
 113 {
 114         struct mbox *mbox = (&inl_dev->dev)->mbox;
 115         struct msg_req *req;
 116
 117         req = mbox_alloc_msg_cpt_ctx_cache_sync(mbox);
 118         if (req == NULL)
 119                 return -ENOSPC;
 120
 121         return mbox_process(mbox);
 122 }
 123
 124 static int
 125 nix_inl_nix_ipsec_cfg(struct nix_inl_dev *inl_dev, bool ena)
 126 {
 127         struct nix_inline_ipsec_lf_cfg *lf_cfg;
 128         struct mbox *mbox = (&inl_dev->dev)->mbox;
 129         uint64_t max_sa;
 130         uint32_t sa_w;
 131
 132         lf_cfg = mbox_alloc_msg_nix_inline_ipsec_lf_cfg(mbox);
 133         if (lf_cfg == NULL)
 134                 return -ENOSPC;
 135
 136         if (ena) {
 137
 138                 max_sa = inl_dev->inb_spi_mask + 1;
 139                 sa_w = plt_log2_u32(max_sa);
 140
 141                 lf_cfg->enable = 1;
 142                 lf_cfg->sa_base_addr = (uintptr_t)inl_dev->inb_sa_base;
 143                 lf_cfg->ipsec_cfg1.sa_idx_w = sa_w;
 144                 /* CN9K SA size is different */
 145                 if (roc_model_is_cn9k())
 146                         lf_cfg->ipsec_cfg0.lenm1_max = NIX_CN9K_MAX_HW_FRS - 1;
 147                 else
 148                         lf_cfg->ipsec_cfg0.lenm1_max = NIX_RPM_MAX_HW_FRS - 1;
 149                 lf_cfg->ipsec_cfg1.sa_idx_max = max_sa - 1;
 150                 lf_cfg->ipsec_cfg0.sa_pow2_size =
 151                         plt_log2_u32(inl_dev->inb_sa_sz);
 152
 153                 lf_cfg->ipsec_cfg0.tag_const = 0;
 154                 lf_cfg->ipsec_cfg0.tt = SSO_TT_ORDERED;
 155         } else {
 156                 lf_cfg->enable = 0;
 157         }
 158
 159         return mbox_process(mbox);
 160 }
 161
 162 static int
 163 nix_inl_cpt_setup(struct nix_inl_dev *inl_dev)
 164 {
 165         struct roc_cpt_lf *lf = &inl_dev->cpt_lf;
 166         struct dev *dev = &inl_dev->dev;
 167         uint8_t eng_grpmask;
 168         int rc;
 169
 170         if (!inl_dev->attach_cptlf)
 171                 return 0;
 172
 173         /* Alloc CPT LF */
 174         eng_grpmask = (1ULL << ROC_CPT_DFLT_ENG_GRP_SE |
 175                        1ULL << ROC_CPT_DFLT_ENG_GRP_SE_IE |
 176                        1ULL << ROC_CPT_DFLT_ENG_GRP_AE);
 177         rc = cpt_lfs_alloc(dev, eng_grpmask, RVU_BLOCK_ADDR_CPT0, false);
 178         if (rc) {
 179                 plt_err("Failed to alloc CPT LF resources, rc=%d", rc);
 180                 return rc;
 181         }
 182
 183         /* Setup CPT LF for submitting control opcode */
 184         lf = &inl_dev->cpt_lf;
 185         lf->lf_id = 0;
 186         lf->nb_desc = 0; /* Set to default */
 187         lf->dev = &inl_dev->dev;
 188         lf->msixoff = inl_dev->cpt_msixoff;
 189         lf->pci_dev = inl_dev->pci_dev;
 190
 191         rc = cpt_lf_init(lf);
 192         if (rc) {
 193                 plt_err("Failed to initialize CPT LF, rc=%d", rc);
 194                 goto lf_free;
 195         }
 196
 197         roc_cpt_iq_enable(lf);
 198         return 0;
 199 lf_free:
 200         rc |= cpt_lfs_free(dev);
 201         return rc;
 202 }
 203
 204 static int
 205 nix_inl_cpt_release(struct nix_inl_dev *inl_dev)
 206 {
 207         struct roc_cpt_lf *lf = &inl_dev->cpt_lf;
 208         struct dev *dev = &inl_dev->dev;
 209         int rc, ret = 0;
 210
 211         if (!inl_dev->attach_cptlf)
 212                 return 0;
 213
 214         /* Cleanup CPT LF queue */
 215         cpt_lf_fini(lf);
 216
 217         /* Free LF resources */
 218         rc = cpt_lfs_free(dev);
 219         if (rc)
 220                 plt_err("Failed to free CPT LF resources, rc=%d", rc);
 221         ret |= rc;
 222
 223         /* Detach LF */
 224         rc = cpt_lfs_detach(dev);
 225         if (rc)
 226                 plt_err("Failed to detach CPT LF, rc=%d", rc);
 227         ret |= rc;
 228
 229         return ret;
 230 }
 231
 232 static int
 233 nix_inl_sso_setup(struct nix_inl_dev *inl_dev)
 234 {
 235         struct sso_lf_alloc_rsp *sso_rsp;
 236         struct dev *dev = &inl_dev->dev;
 237         uint16_t hwgrp[1] = {0};
 238         int rc;
 239
 240         /* Alloc SSOW LF */
 241         rc = sso_lf_alloc(dev, SSO_LF_TYPE_HWS, 1, NULL);
 242         if (rc) {
 243                 plt_err("Failed to alloc SSO HWS, rc=%d", rc);
 244                 return rc;
 245         }
 246
 247         /* Alloc HWGRP LF */
 248         rc = sso_lf_alloc(dev, SSO_LF_TYPE_HWGRP, 1, (void **)&sso_rsp);
 249         if (rc) {
 250                 plt_err("Failed to alloc SSO HWGRP, rc=%d", rc);
 251                 goto free_ssow;
 252         }
 253
 254         inl_dev->xaq_buf_size = sso_rsp->xaq_buf_size;
 255         inl_dev->xae_waes = sso_rsp->xaq_wq_entries;
 256         inl_dev->iue = sso_rsp->in_unit_entries;
 257
 258         inl_dev->nb_xae = inl_dev->iue;
 259         rc = sso_hwgrp_init_xaq_aura(dev, &inl_dev->xaq, inl_dev->nb_xae,
 260                                      inl_dev->xae_waes, inl_dev->xaq_buf_size,
 261                                      1);
 262         if (rc) {
 263                 plt_err("Failed to alloc SSO XAQ aura, rc=%d", rc);
 264                 goto free_sso;
 265         }
 266
 267         /* Setup xaq for hwgrps */
 268         rc = sso_hwgrp_alloc_xaq(dev, inl_dev->xaq.aura_handle, 1);
 269         if (rc) {
 270                 plt_err("Failed to setup hwgrp xaq aura, rc=%d", rc);
 271                 goto destroy_pool;
 272         }
 273
 274         /* Register SSO, SSOW error and work irq's */
 275         rc = nix_inl_sso_register_irqs(inl_dev);
 276         if (rc) {
 277                 plt_err("Failed to register sso irq's, rc=%d", rc);
 278                 goto release_xaq;
 279         }
 280
 281         /* Setup hwgrp->hws link */
 282         sso_hws_link_modify(0, inl_dev->ssow_base, NULL, hwgrp, 1, true);
 283
 284         /* Enable HWGRP */
 285         plt_write64(0x1, inl_dev->sso_base + SSO_LF_GGRP_QCTL);
 286
 287         return 0;
 288
 289 release_xaq:
 290         sso_hwgrp_release_xaq(&inl_dev->dev, 1);
 291 destroy_pool:
 292         sso_hwgrp_free_xaq_aura(dev, &inl_dev->xaq, 0);
 293 free_sso:
 294         sso_lf_free(dev, SSO_LF_TYPE_HWGRP, 1);
 295 free_ssow:
 296         sso_lf_free(dev, SSO_LF_TYPE_HWS, 1);
 297         return rc;
 298 }
 299
 300 static int
 301 nix_inl_sso_release(struct nix_inl_dev *inl_dev)
 302 {
 303         uint16_t hwgrp[1] = {0};
 304
 305         /* Disable HWGRP */
 306         plt_write64(0, inl_dev->sso_base + SSO_LF_GGRP_QCTL);
 307
 308         /* Unregister SSO/SSOW IRQ's */
 309         nix_inl_sso_unregister_irqs(inl_dev);
 310
 311         /* Unlink hws */
 312         sso_hws_link_modify(0, inl_dev->ssow_base, NULL, hwgrp, 1, false);
 313
 314         /* Release XAQ aura */
 315         sso_hwgrp_release_xaq(&inl_dev->dev, 1);
 316
 317         /* Free SSO, SSOW LF's */
 318         sso_lf_free(&inl_dev->dev, SSO_LF_TYPE_HWS, 1);
 319         sso_lf_free(&inl_dev->dev, SSO_LF_TYPE_HWGRP, 1);
 320
 321         /* Free the XAQ aura */
 322         sso_hwgrp_free_xaq_aura(&inl_dev->dev, &inl_dev->xaq, 0);
 323
 324         return 0;
 325 }
 326
 327 static int
 328 nix_inl_nix_setup(struct nix_inl_dev *inl_dev)
 329 {
 330         uint32_t ipsec_in_min_spi = inl_dev->ipsec_in_min_spi;
 331         uint32_t ipsec_in_max_spi = inl_dev->ipsec_in_max_spi;
 332         struct dev *dev = &inl_dev->dev;
 333         struct mbox *mbox = dev->mbox;
 334         struct nix_lf_alloc_rsp *rsp;
 335         struct nix_lf_alloc_req *req;
 336         struct nix_hw_info *hw_info;
 337         uint64_t max_sa, i;
 338         size_t inb_sa_sz;
 339         int rc = -ENOSPC;
 340         void *sa;
 341
 342         max_sa = plt_align32pow2(ipsec_in_max_spi - ipsec_in_min_spi + 1);
 343
 344         /* Alloc NIX LF needed for single RQ */
 345         req = mbox_alloc_msg_nix_lf_alloc(mbox);
 346         if (req == NULL)
 347                 return rc;
 348         req->rq_cnt = 1;
 349         req->sq_cnt = 1;
 350         req->cq_cnt = 1;
 351         /* XQESZ is W16 */
 352         req->xqe_sz = NIX_XQESZ_W16;
 353         /* RSS size does not matter as this RQ is only for UCAST_IPSEC action */
 354         req->rss_sz = ROC_NIX_RSS_RETA_SZ_64;
 355         req->rss_grps = ROC_NIX_RSS_GRPS;
 356         req->npa_func = idev_npa_pffunc_get();
 357         req->sso_func = dev->pf_func;
 358         req->rx_cfg = NIX_INL_LF_RX_CFG;
 359         req->flags = NIX_LF_RSS_TAG_LSB_AS_ADDER;
 360
 361         if (roc_model_is_cn10ka_a0() || roc_model_is_cnf10ka_a0() ||
 362             roc_model_is_cnf10kb_a0())
 363                 req->rx_cfg &= ~ROC_NIX_LF_RX_CFG_DROP_RE;
 364
 365         rc = mbox_process_msg(mbox, (void *)&rsp);
 366         if (rc) {
 367                 plt_err("Failed to alloc lf, rc=%d", rc);
 368                 return rc;
 369         }
 370
 371         inl_dev->lf_tx_stats = rsp->lf_tx_stats;
 372         inl_dev->lf_rx_stats = rsp->lf_rx_stats;
 373         inl_dev->qints = rsp->qints;
 374         inl_dev->cints = rsp->cints;
 375
 376         /* Get VWQE info if supported */
 377         if (roc_model_is_cn10k()) {
 378                 mbox_alloc_msg_nix_get_hw_info(mbox);
 379                 rc = mbox_process_msg(mbox, (void *)&hw_info);
 380                 if (rc) {
 381                         plt_err("Failed to get HW info, rc=%d", rc);
 382                         goto lf_free;
 383                 }
 384                 inl_dev->vwqe_interval = hw_info->vwqe_delay;
 385         }
 386
 387         /* Register nix interrupts */
 388         rc = nix_inl_nix_register_irqs(inl_dev);
 389         if (rc) {
 390                 plt_err("Failed to register nix irq's, rc=%d", rc);
 391                 goto lf_free;
 392         }
 393
 394         /* CN9K SA is different */
 395         if (roc_model_is_cn9k())
 396                 inb_sa_sz = ROC_NIX_INL_ONF_IPSEC_INB_SA_SZ;
 397         else
 398                 inb_sa_sz = ROC_NIX_INL_OT_IPSEC_INB_SA_SZ;
 399
 400         /* Alloc contiguous memory for Inbound SA's */
 401         inl_dev->inb_sa_sz = inb_sa_sz;
 402         inl_dev->inb_spi_mask = max_sa - 1;
 403         inl_dev->inb_sa_base = plt_zmalloc(inb_sa_sz * max_sa,
 404                                            ROC_NIX_INL_SA_BASE_ALIGN);
 405         if (!inl_dev->inb_sa_base) {
 406                 plt_err("Failed to allocate memory for Inbound SA");
 407                 rc = -ENOMEM;
 408                 goto unregister_irqs;
 409         }
 410
 411         if (roc_model_is_cn10k()) {
 412                 for (i = 0; i < max_sa; i++) {
 413                         sa = ((uint8_t *)inl_dev->inb_sa_base) +
 414                              (i * inb_sa_sz);
 415                         roc_ot_ipsec_inb_sa_init(sa, true);
 416                 }
 417         }
 418         /* Setup device specific inb SA table */
 419         rc = nix_inl_nix_ipsec_cfg(inl_dev, true);
 420         if (rc) {
 421                 plt_err("Failed to setup NIX Inbound SA conf, rc=%d", rc);
 422                 goto free_mem;
 423         }
 424
 425         return 0;
 426 free_mem:
 427         plt_free(inl_dev->inb_sa_base);
 428         inl_dev->inb_sa_base = NULL;
 429 unregister_irqs:
 430         nix_inl_nix_unregister_irqs(inl_dev);
 431 lf_free:
 432         mbox_alloc_msg_nix_lf_free(mbox);
 433         rc |= mbox_process(mbox);
 434         return rc;
 435 }
 436
 437 static int
 438 nix_inl_nix_release(struct nix_inl_dev *inl_dev)
 439 {
 440         struct dev *dev = &inl_dev->dev;
 441         struct mbox *mbox = dev->mbox;
 442         struct nix_lf_free_req *req;
 443         struct ndc_sync_op *ndc_req;
 444         int rc = -ENOSPC;
 445
 446         /* Disable Inbound processing */
 447         rc = nix_inl_nix_ipsec_cfg(inl_dev, false);
 448         if (rc)
 449                 plt_err("Failed to disable Inbound IPSec, rc=%d", rc);
 450
 451         /* Sync NDC-NIX for LF */
 452         ndc_req = mbox_alloc_msg_ndc_sync_op(mbox);
 453         if (ndc_req == NULL)
 454                 return rc;
 455         ndc_req->nix_lf_rx_sync = 1;
 456         rc = mbox_process(mbox);
 457         if (rc)
 458                 plt_err("Error on NDC-NIX-RX LF sync, rc %d", rc);
 459
 460         /* Unregister IRQs */
 461         nix_inl_nix_unregister_irqs(inl_dev);
 462
 463         /* By default all associated mcam rules are deleted */
 464         req = mbox_alloc_msg_nix_lf_free(mbox);
 465         if (req == NULL)
 466                 return -ENOSPC;
 467
 468         return mbox_process(mbox);
 469 }
 470
 471 static int
 472 nix_inl_lf_attach(struct nix_inl_dev *inl_dev)
 473 {
 474         struct msix_offset_rsp *msix_rsp;
 475         struct dev *dev = &inl_dev->dev;
 476         struct mbox *mbox = dev->mbox;
 477         struct rsrc_attach_req *req;
 478         uint64_t nix_blkaddr;
 479         int rc = -ENOSPC;
 480
 481         req = mbox_alloc_msg_attach_resources(mbox);
 482         if (req == NULL)
 483                 return rc;
 484         req->modify = true;
 485         /* Attach 1 NIXLF, SSO HWS and SSO HWGRP */
 486         req->nixlf = true;
 487         req->ssow = 1;
 488         req->sso = 1;
 489         if (inl_dev->attach_cptlf) {
 490                 req->cptlfs = 1;
 491                 req->cpt_blkaddr = RVU_BLOCK_ADDR_CPT0;
 492         }
 493
 494         rc = mbox_process(dev->mbox);
 495         if (rc)
 496                 return rc;
 497
 498         /* Get MSIX vector offsets */
 499         mbox_alloc_msg_msix_offset(mbox);
 500         rc = mbox_process_msg(dev->mbox, (void **)&msix_rsp);
 501         if (rc)
 502                 return rc;
 503
 504         inl_dev->nix_msixoff = msix_rsp->nix_msixoff;
 505         inl_dev->ssow_msixoff = msix_rsp->ssow_msixoff[0];
 506         inl_dev->sso_msixoff = msix_rsp->sso_msixoff[0];
 507         inl_dev->cpt_msixoff = msix_rsp->cptlf_msixoff[0];
 508
 509         nix_blkaddr = nix_get_blkaddr(dev);
 510         inl_dev->is_nix1 = (nix_blkaddr == RVU_BLOCK_ADDR_NIX1);
 511
 512         /* Update base addresses for LF's */
 513         inl_dev->nix_base = dev->bar2 + (nix_blkaddr << 20);
 514         inl_dev->ssow_base = dev->bar2 + (RVU_BLOCK_ADDR_SSOW << 20);
 515         inl_dev->sso_base = dev->bar2 + (RVU_BLOCK_ADDR_SSO << 20);
 516         inl_dev->cpt_base = dev->bar2 + (RVU_BLOCK_ADDR_CPT0 << 20);
 517
 518         return 0;
 519 }
 520
 521 static int
 522 nix_inl_lf_detach(struct nix_inl_dev *inl_dev)
 523 {
 524         struct dev *dev = &inl_dev->dev;
 525         struct mbox *mbox = dev->mbox;
 526         struct rsrc_detach_req *req;
 527         int rc = -ENOSPC;
 528
 529         req = mbox_alloc_msg_detach_resources(mbox);
 530         if (req == NULL)
 531                 return rc;
 532         req->partial = true;
 533         req->nixlf = true;
 534         req->ssow = true;
 535         req->sso = true;
 536         req->cptlfs = !!inl_dev->attach_cptlf;
 537
 538         return mbox_process(dev->mbox);
 539 }
 540
 541 static int
 542 nix_inl_dev_wait_for_sso_empty(struct nix_inl_dev *inl_dev)
 543 {
 544         uintptr_t sso_base = inl_dev->sso_base;
 545         int wait_ms = 3000;
 546
 547         while (wait_ms > 0) {
 548                 /* Break when empty */
 549                 if (!plt_read64(sso_base + SSO_LF_GGRP_XAQ_CNT) &&
 550                     !plt_read64(sso_base + SSO_LF_GGRP_AQ_CNT))
 551                         return 0;
 552
 553                 plt_delay_us(1000);
 554                 wait_ms -= 1;
 555         }
 556
 557         return -ETIMEDOUT;
 558 }
 559
 560 int
 561 roc_nix_inl_dev_xaq_realloc(uint64_t aura_handle)
 562 {
 563         struct idev_cfg *idev = idev_get_cfg();
 564         struct nix_inl_dev *inl_dev;
 565         int rc, i;
 566
 567         if (idev == NULL)
 568                 return 0;
 569
 570         inl_dev = idev->nix_inl_dev;
 571         /* Nothing to do if no inline device */
 572         if (!inl_dev)
 573                 return 0;
 574
 575         if (!aura_handle) {
 576                 inl_dev->nb_xae = inl_dev->iue;
 577                 goto no_pool;
 578         }
 579
 580         /* Check if aura is already considered */
 581         for (i = 0; i < inl_dev->pkt_pools_cnt; i++) {
 582                 if (inl_dev->pkt_pools[i] == aura_handle)
 583                         return 0;
 584         }
 585
 586 no_pool:
 587         /* Disable RQ if enabled */
 588         if (inl_dev->rq_refs) {
 589                 rc = nix_rq_ena_dis(&inl_dev->dev, &inl_dev->rq, false);
 590                 if (rc) {
 591                         plt_err("Failed to disable inline dev RQ, rc=%d", rc);
 592                         return rc;
 593                 }
 594         }
 595
 596         /* Wait for events to be removed */
 597         rc = nix_inl_dev_wait_for_sso_empty(inl_dev);
 598         if (rc) {
 599                 plt_err("Timeout waiting for inline device event cleanup");
 600                 goto exit;
 601         }
 602
 603         /* Disable HWGRP */
 604         plt_write64(0, inl_dev->sso_base + SSO_LF_GGRP_QCTL);
 605
 606         inl_dev->pkt_pools_cnt++;
 607         inl_dev->pkt_pools =
 608                 plt_realloc(inl_dev->pkt_pools,
 609                             sizeof(uint64_t *) * inl_dev->pkt_pools_cnt, 0);
 610         if (!inl_dev->pkt_pools)
 611                 inl_dev->pkt_pools_cnt = 0;
 612         else
 613                 inl_dev->pkt_pools[inl_dev->pkt_pools_cnt - 1] = aura_handle;
 614         inl_dev->nb_xae += roc_npa_aura_op_limit_get(aura_handle);
 615
 616         /* Realloc XAQ aura */
 617         rc = sso_hwgrp_init_xaq_aura(&inl_dev->dev, &inl_dev->xaq,
 618                                      inl_dev->nb_xae, inl_dev->xae_waes,
 619                                      inl_dev->xaq_buf_size, 1);
 620         if (rc) {
 621                 plt_err("Failed to reinitialize xaq aura, rc=%d", rc);
 622                 return rc;
 623         }
 624
 625         /* Setup xaq for hwgrps */
 626         rc = sso_hwgrp_alloc_xaq(&inl_dev->dev, inl_dev->xaq.aura_handle, 1);
 627         if (rc) {
 628                 plt_err("Failed to setup hwgrp xaq aura, rc=%d", rc);
 629                 return rc;
 630         }
 631
 632         /* Enable HWGRP */
 633         plt_write64(0x1, inl_dev->sso_base + SSO_LF_GGRP_QCTL);
 634
 635 exit:
 636         /* Renable RQ */
 637         if (inl_dev->rq_refs) {
 638                 rc = nix_rq_ena_dis(&inl_dev->dev, &inl_dev->rq, true);
 639                 if (rc)
 640                         plt_err("Failed to enable inline dev RQ, rc=%d", rc);
 641         }
 642
 643         return rc;
 644 }
 645
 646 static void
 647 inl_outb_soft_exp_poll(struct nix_inl_dev *inl_dev, uint32_t ring_idx)
 648 {
 649         union roc_ot_ipsec_err_ring_head head;
 650         struct roc_ot_ipsec_outb_sa *sa;
 651         uint16_t head_l, tail_l;
 652         uint64_t *ring_base;
 653         uint32_t port_id;
 654
 655         port_id = ring_idx / ROC_NIX_SOFT_EXP_PER_PORT_MAX_RINGS;
 656         ring_base = PLT_PTR_CAST(inl_dev->sa_soft_exp_ring[ring_idx]);
 657         if (!ring_base) {
 658                 plt_err("Invalid soft exp ring base");
 659                 return;
 660         }
 661
 662         head.u64 = __atomic_load_n(ring_base, __ATOMIC_ACQUIRE);
 663         head_l = head.s.head_pos;
 664         tail_l = head.s.tail_pos;
 665
 666         while (tail_l != head_l) {
 667                 union roc_ot_ipsec_err_ring_entry entry;
 668                 int poll_counter = 0;
 669
 670                 while (poll_counter++ <
 671                        ROC_NIX_INL_SA_SOFT_EXP_ERR_MAX_POLL_COUNT) {
 672                         plt_delay_us(20);
 673                         entry.u64 = __atomic_load_n(ring_base + tail_l + 1,
 674                                                     __ATOMIC_ACQUIRE);
 675                         if (likely(entry.u64))
 676                                 break;
 677                 }
 678
 679                 entry.u64 = plt_be_to_cpu_64(entry.u64);
 680                 sa = (struct roc_ot_ipsec_outb_sa *)(((uint64_t)entry.s.data1
 681                                                       << 51) |
 682                                                      (entry.s.data0 << 7));
 683
 684                 if (sa != NULL) {
 685                         uint64_t tmp = ~(uint32_t)0x0;
 686                         inl_dev->work_cb(&tmp, sa, (port_id << 8) | 0x1);
 687                         __atomic_store_n(ring_base + tail_l + 1, 0ULL,
 688                                          __ATOMIC_RELAXED);
 689                         __atomic_add_fetch((uint32_t *)ring_base, 1,
 690                                            __ATOMIC_ACQ_REL);
 691                 } else
 692                         plt_err("Invalid SA");
 693
 694                 tail_l++;
 695         }
 696 }
 697
 698 static void *
 699 nix_inl_outb_poll_thread(void *args)
 700 {
 701         struct nix_inl_dev *inl_dev = args;
 702         uint32_t poll_freq;
 703         uint32_t i;
 704         bool bit;
 705
 706         poll_freq = inl_dev->soft_exp_poll_freq;
 707
 708         while (!soft_exp_poll_thread_exit) {
 709                 if (soft_exp_consumer_cnt) {
 710                         for (i = 0; i < ROC_NIX_INL_MAX_SOFT_EXP_RNGS; i++) {
 711                                 bit = plt_bitmap_get(
 712                                         inl_dev->soft_exp_ring_bmap, i);
 713                                 if (bit)
 714                                         inl_outb_soft_exp_poll(inl_dev, i);
 715                         }
 716                 }
 717                 usleep(poll_freq);
 718         }
 719
 720         return 0;
 721 }
 722
 723 static int
 724 nix_inl_outb_poll_thread_setup(struct nix_inl_dev *inl_dev)
 725 {
 726         struct plt_bitmap *bmap;
 727         size_t bmap_sz;
 728         uint32_t i;
 729         void *mem;
 730         int rc;
 731
 732         /* Allocate a bitmap that pool thread uses to get the port_id
 733          * that's corresponding to the inl_outb_soft_exp_ring
 734          */
 735         bmap_sz =
 736                 plt_bitmap_get_memory_footprint(ROC_NIX_INL_MAX_SOFT_EXP_RNGS);
 737         mem = plt_zmalloc(bmap_sz, PLT_CACHE_LINE_SIZE);
 738         if (mem == NULL) {
 739                 plt_err("soft expiry ring bmap alloc failed");
 740                 rc = -ENOMEM;
 741                 goto exit;
 742         }
 743
 744         bmap = plt_bitmap_init(ROC_NIX_INL_MAX_SOFT_EXP_RNGS, mem, bmap_sz);
 745         if (!bmap) {
 746                 plt_err("soft expiry ring bmap init failed");
 747                 plt_free(mem);
 748                 rc = -ENOMEM;
 749                 goto exit;
 750         }
 751
 752         inl_dev->soft_exp_ring_bmap_mem = mem;
 753         inl_dev->soft_exp_ring_bmap = bmap;
 754         inl_dev->sa_soft_exp_ring = plt_zmalloc(
 755                 ROC_NIX_INL_MAX_SOFT_EXP_RNGS * sizeof(uint64_t), 0);
 756         if (!inl_dev->sa_soft_exp_ring) {
 757                 plt_err("soft expiry ring pointer array alloc failed");
 758                 plt_free(mem);
 759                 rc = -ENOMEM;
 760                 goto exit;
 761         }
 762
 763         for (i = 0; i < ROC_NIX_INL_MAX_SOFT_EXP_RNGS; i++)
 764                 plt_bitmap_clear(inl_dev->soft_exp_ring_bmap, i);
 765
 766         soft_exp_consumer_cnt = 0;
 767         soft_exp_poll_thread_exit = false;
 768         inl_dev->soft_exp_poll_freq = 100;
 769         rc = plt_ctrl_thread_create(&inl_dev->soft_exp_poll_thread,
 770                                     "OUTB_SOFT_EXP_POLL_THREAD", NULL,
 771                                     nix_inl_outb_poll_thread, inl_dev);
 772         if (rc) {
 773                 plt_bitmap_free(inl_dev->soft_exp_ring_bmap);
 774                 plt_free(inl_dev->soft_exp_ring_bmap_mem);
 775         }
 776
 777 exit:
 778         return rc;
 779 }
 780
 781 int
 782 roc_nix_inl_dev_init(struct roc_nix_inl_dev *roc_inl_dev)
 783 {
 784         struct plt_pci_device *pci_dev;
 785         struct nix_inl_dev *inl_dev;
 786         struct idev_cfg *idev;
 787         int rc;
 788
 789         pci_dev = roc_inl_dev->pci_dev;
 790
 791         /* Skip probe if already done */
 792         idev = idev_get_cfg();
 793         if (idev == NULL)
 794                 return -ENOTSUP;
 795
 796         if (idev->nix_inl_dev) {
 797                 plt_info("Skipping device %s, inline device already probed",
 798                          pci_dev->name);
 799                 return -EEXIST;
 800         }
 801
 802         PLT_STATIC_ASSERT(sizeof(struct nix_inl_dev) <= ROC_NIX_INL_MEM_SZ);
 803
 804         inl_dev = (struct nix_inl_dev *)roc_inl_dev->reserved;
 805         memset(inl_dev, 0, sizeof(*inl_dev));
 806
 807         inl_dev->pci_dev = pci_dev;
 808         inl_dev->ipsec_in_min_spi = roc_inl_dev->ipsec_in_min_spi;
 809         inl_dev->ipsec_in_max_spi = roc_inl_dev->ipsec_in_max_spi;
 810         inl_dev->selftest = roc_inl_dev->selftest;
 811         inl_dev->is_multi_channel = roc_inl_dev->is_multi_channel;
 812         inl_dev->channel = roc_inl_dev->channel;
 813         inl_dev->chan_mask = roc_inl_dev->chan_mask;
 814         inl_dev->attach_cptlf = roc_inl_dev->attach_cptlf;
 815         inl_dev->wqe_skip = roc_inl_dev->wqe_skip;
 816         inl_dev->spb_drop_pc = NIX_AURA_DROP_PC_DFLT;
 817         inl_dev->lpb_drop_pc = NIX_AURA_DROP_PC_DFLT;
 818
 819         if (roc_inl_dev->spb_drop_pc)
 820                 inl_dev->spb_drop_pc = roc_inl_dev->spb_drop_pc;
 821         if (roc_inl_dev->lpb_drop_pc)
 822                 inl_dev->lpb_drop_pc = roc_inl_dev->lpb_drop_pc;
 823
 824         /* Initialize base device */
 825         rc = dev_init(&inl_dev->dev, pci_dev);
 826         if (rc) {
 827                 plt_err("Failed to init roc device");
 828                 goto error;
 829         }
 830
 831         /* Attach LF resources */
 832         rc = nix_inl_lf_attach(inl_dev);
 833         if (rc) {
 834                 plt_err("Failed to attach LF resources, rc=%d", rc);
 835                 goto dev_cleanup;
 836         }
 837
 838         /* Setup NIX LF */
 839         rc = nix_inl_nix_setup(inl_dev);
 840         if (rc)
 841                 goto lf_detach;
 842
 843         /* Setup SSO LF */
 844         rc = nix_inl_sso_setup(inl_dev);
 845         if (rc)
 846                 goto nix_release;
 847
 848         /* Setup CPT LF */
 849         rc = nix_inl_cpt_setup(inl_dev);
 850         if (rc)
 851                 goto sso_release;
 852
 853         if (roc_inl_dev->set_soft_exp_poll) {
 854                 rc = nix_inl_outb_poll_thread_setup(inl_dev);
 855                 if (rc)
 856                         goto cpt_release;
 857         }
 858
 859         /* Perform selftest if asked for */
 860         if (inl_dev->selftest) {
 861                 rc = nix_inl_selftest();
 862                 if (rc)
 863                         goto cpt_release;
 864         }
 865
 866         idev->nix_inl_dev = inl_dev;
 867
 868         return 0;
 869 cpt_release:
 870         rc |= nix_inl_cpt_release(inl_dev);
 871 sso_release:
 872         rc |= nix_inl_sso_release(inl_dev);
 873 nix_release:
 874         rc |= nix_inl_nix_release(inl_dev);
 875 lf_detach:
 876         rc |= nix_inl_lf_detach(inl_dev);
 877 dev_cleanup:
 878         rc |= dev_fini(&inl_dev->dev, pci_dev);
 879 error:
 880         return rc;
 881 }
 882
 883 int
 884 roc_nix_inl_dev_fini(struct roc_nix_inl_dev *roc_inl_dev)
 885 {
 886         struct plt_pci_device *pci_dev;
 887         struct nix_inl_dev *inl_dev;
 888         struct idev_cfg *idev;
 889         int rc;
 890
 891         idev = idev_get_cfg();
 892         if (idev == NULL)
 893                 return 0;
 894
 895         if (!idev->nix_inl_dev ||
 896             PLT_PTR_DIFF(roc_inl_dev->reserved, idev->nix_inl_dev))
 897                 return 0;
 898
 899         inl_dev = idev->nix_inl_dev;
 900         pci_dev = inl_dev->pci_dev;
 901
 902         if (roc_inl_dev->set_soft_exp_poll) {
 903                 soft_exp_poll_thread_exit = true;
 904                 pthread_join(inl_dev->soft_exp_poll_thread, NULL);
 905                 plt_bitmap_free(inl_dev->soft_exp_ring_bmap);
 906                 plt_free(inl_dev->soft_exp_ring_bmap_mem);
 907                 plt_free(inl_dev->sa_soft_exp_ring);
 908         }
 909
 910         /* Flush Inbound CTX cache entries */
 911         nix_inl_cpt_ctx_cache_sync(inl_dev);
 912
 913         /* Release SSO */
 914         rc = nix_inl_sso_release(inl_dev);
 915
 916         /* Release NIX */
 917         rc |= nix_inl_nix_release(inl_dev);
 918
 919         /* Detach LF's */
 920         rc |= nix_inl_lf_detach(inl_dev);
 921
 922         /* Cleanup mbox */
 923         rc |= dev_fini(&inl_dev->dev, pci_dev);
 924         if (rc)
 925                 return rc;
 926
 927         idev->nix_inl_dev = NULL;
 928         return 0;
 929 }