1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2018 Chelsio Communications. 3 * All rights reserved. 4 */ 5 6 #include <sys/queue.h> 7 #include <stdio.h> 8 #include <errno.h> 9 #include <stdint.h> 10 #include <string.h> 11 #include <unistd.h> 12 #include <stdarg.h> 13 #include <inttypes.h> 14 #include <netinet/in.h> 15 16 #include <rte_byteorder.h> 17 #include <rte_common.h> 18 #include <rte_cycles.h> 19 #include <rte_interrupts.h> 20 #include <rte_log.h> 21 #include <rte_debug.h> 22 #include <rte_pci.h> 23 #include <rte_branch_prediction.h> 24 #include <rte_memory.h> 25 #include <rte_tailq.h> 26 #include <rte_eal.h> 27 #include <rte_alarm.h> 28 #include <rte_ether.h> 29 #include <ethdev_driver.h> 30 #include <ethdev_pci.h> 31 #include <rte_random.h> 32 #include <rte_dev.h> 33 #include <rte_kvargs.h> 34 35 #include "base/common.h" 36 #include "base/t4_regs.h" 37 #include "base/t4_msg.h" 38 #include "cxgbe.h" 39 #include "cxgbe_pfvf.h" 40 #include "clip_tbl.h" 41 #include "l2t.h" 42 #include "smt.h" 43 #include "mps_tcam.h" 44 45 static const u16 cxgbe_filter_mode_features[] = { 46 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | 47 F_PROTOCOL | F_PORT), 48 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | 49 F_PROTOCOL | F_FCOE), 50 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | F_TOS | 51 F_PORT), 52 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | F_TOS | 53 F_FCOE), 54 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | F_PORT | 55 F_FCOE), 56 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_PROTOCOL | F_TOS | 57 F_PORT | F_FCOE), 58 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_PROTOCOL | F_VLAN | 59 F_FCOE), 60 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_PROTOCOL | F_VNIC_ID | 61 F_FCOE), 62 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_TOS | F_VLAN | 63 F_FCOE), 64 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_TOS | F_VNIC_ID | 65 F_FCOE), 66 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_VLAN | F_PORT | 67 F_FCOE), 68 (F_FRAGMENTATION | F_MPSHITTYPE | F_MACMATCH | F_VNIC_ID | F_PORT | 69 F_FCOE), 70 (F_FRAGMENTATION | F_MPSHITTYPE | F_ETHERTYPE | F_PROTOCOL | F_TOS | 71 F_PORT | F_FCOE), 72 (F_FRAGMENTATION | F_MPSHITTYPE | F_ETHERTYPE | F_VLAN | F_PORT), 73 (F_FRAGMENTATION | F_MPSHITTYPE | F_ETHERTYPE | F_VLAN | F_FCOE), 74 (F_FRAGMENTATION | F_MPSHITTYPE | F_ETHERTYPE | F_VNIC_ID | F_PORT), 75 (F_FRAGMENTATION | F_MPSHITTYPE | F_ETHERTYPE | F_VNIC_ID | F_FCOE), 76 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VLAN | F_PORT), 77 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VLAN | F_FCOE), 78 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VNIC_ID | 79 F_PORT), 80 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VNIC_ID | 81 F_FCOE), 82 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_VLAN | F_PORT | 83 F_FCOE), 84 (F_FRAGMENTATION | F_MPSHITTYPE | F_PROTOCOL | F_VNIC_ID | F_PORT | 85 F_FCOE), 86 (F_FRAGMENTATION | F_MPSHITTYPE | F_TOS | F_VLAN | F_PORT | F_FCOE), 87 (F_FRAGMENTATION | F_MPSHITTYPE | F_TOS | F_VNIC_ID | F_PORT | F_FCOE), 88 (F_FRAGMENTATION | F_MPSHITTYPE | F_VLAN | F_VNIC_ID | F_FCOE), 89 (F_FRAGMENTATION | F_MACMATCH | F_ETHERTYPE | F_PROTOCOL | F_PORT | 90 F_FCOE), 91 (F_FRAGMENTATION | F_MACMATCH | F_ETHERTYPE | F_TOS | F_PORT | F_FCOE), 92 (F_FRAGMENTATION | F_MACMATCH | F_PROTOCOL | F_VLAN | F_PORT | F_FCOE), 93 (F_FRAGMENTATION | F_MACMATCH | F_PROTOCOL | F_VNIC_ID | F_PORT | 94 F_FCOE), 95 (F_FRAGMENTATION | F_MACMATCH | F_TOS | F_VLAN | F_PORT | F_FCOE), 96 (F_FRAGMENTATION | F_MACMATCH | F_TOS | F_VNIC_ID | F_PORT | F_FCOE), 97 (F_FRAGMENTATION | F_ETHERTYPE | F_VLAN | F_PORT | F_FCOE), 98 (F_FRAGMENTATION | F_ETHERTYPE | F_VNIC_ID | F_PORT | F_FCOE), 99 (F_FRAGMENTATION | F_PROTOCOL | F_TOS | F_VLAN | F_FCOE), 100 (F_FRAGMENTATION | F_PROTOCOL | F_TOS | F_VNIC_ID | F_FCOE), 101 (F_FRAGMENTATION | F_VLAN | F_VNIC_ID | F_PORT | F_FCOE), 102 (F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | F_PROTOCOL | F_PORT | 103 F_FCOE), 104 (F_MPSHITTYPE | F_MACMATCH | F_ETHERTYPE | F_TOS | F_PORT | F_FCOE), 105 (F_MPSHITTYPE | F_MACMATCH | F_PROTOCOL | F_VLAN | F_PORT), 106 (F_MPSHITTYPE | F_MACMATCH | F_PROTOCOL | F_VNIC_ID | F_PORT), 107 (F_MPSHITTYPE | F_MACMATCH | F_TOS | F_VLAN | F_PORT), 108 (F_MPSHITTYPE | F_MACMATCH | F_TOS | F_VNIC_ID | F_PORT), 109 (F_MPSHITTYPE | F_ETHERTYPE | F_VLAN | F_PORT | F_FCOE), 110 (F_MPSHITTYPE | F_ETHERTYPE | F_VNIC_ID | F_PORT | F_FCOE), 111 (F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VLAN | F_PORT | F_FCOE), 112 (F_MPSHITTYPE | F_PROTOCOL | F_TOS | F_VNIC_ID | F_PORT | F_FCOE), 113 (F_MPSHITTYPE | F_VLAN | F_VNIC_ID | F_PORT), 114 }; 115 116 /** 117 * Allocate a chunk of memory. The allocated memory is cleared. 118 */ 119 void *t4_alloc_mem(size_t size) 120 { 121 return rte_zmalloc(NULL, size, 0); 122 } 123 124 /** 125 * Free memory allocated through t4_alloc_mem(). 126 */ 127 void t4_free_mem(void *addr) 128 { 129 rte_free(addr); 130 } 131 132 /* 133 * Response queue handler for the FW event queue. 134 */ 135 static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, 136 __rte_unused const struct pkt_gl *gl) 137 { 138 u8 opcode = ((const struct rss_header *)rsp)->opcode; 139 140 rsp++; /* skip RSS header */ 141 142 /* 143 * FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG. 144 */ 145 if (unlikely(opcode == CPL_FW4_MSG && 146 ((const struct cpl_fw4_msg *)rsp)->type == 147 FW_TYPE_RSSCPL)) { 148 rsp++; 149 opcode = ((const struct rss_header *)rsp)->opcode; 150 rsp++; 151 if (opcode != CPL_SGE_EGR_UPDATE) { 152 dev_err(q->adapter, "unexpected FW4/CPL %#x on FW event queue\n", 153 opcode); 154 goto out; 155 } 156 } 157 158 if (likely(opcode == CPL_SGE_EGR_UPDATE)) { 159 /* do nothing */ 160 } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { 161 const struct cpl_fw6_msg *msg = (const void *)rsp; 162 163 t4_handle_fw_rpl(q->adapter, msg->data); 164 } else if (opcode == CPL_ABORT_RPL_RSS) { 165 const struct cpl_abort_rpl_rss *p = (const void *)rsp; 166 167 cxgbe_hash_del_filter_rpl(q->adapter, p); 168 } else if (opcode == CPL_SET_TCB_RPL) { 169 const struct cpl_set_tcb_rpl *p = (const void *)rsp; 170 171 cxgbe_filter_rpl(q->adapter, p); 172 } else if (opcode == CPL_ACT_OPEN_RPL) { 173 const struct cpl_act_open_rpl *p = (const void *)rsp; 174 175 cxgbe_hash_filter_rpl(q->adapter, p); 176 } else if (opcode == CPL_L2T_WRITE_RPL) { 177 const struct cpl_l2t_write_rpl *p = (const void *)rsp; 178 179 cxgbe_do_l2t_write_rpl(q->adapter, p); 180 } else if (opcode == CPL_SMT_WRITE_RPL) { 181 const struct cpl_smt_write_rpl *p = (const void *)rsp; 182 183 cxgbe_do_smt_write_rpl(q->adapter, p); 184 } else { 185 dev_err(adapter, "unexpected CPL %#x on FW event queue\n", 186 opcode); 187 } 188 out: 189 return 0; 190 } 191 192 /** 193 * Setup sge control queues to pass control information. 194 */ 195 int cxgbe_setup_sge_ctrl_txq(struct adapter *adapter) 196 { 197 struct sge *s = &adapter->sge; 198 int err = 0, i = 0; 199 200 for_each_port(adapter, i) { 201 struct port_info *pi = adap2pinfo(adapter, i); 202 char name[RTE_ETH_NAME_MAX_LEN]; 203 struct sge_ctrl_txq *q = &s->ctrlq[i]; 204 205 q->q.size = 1024; 206 err = t4_sge_alloc_ctrl_txq(adapter, q, 207 adapter->eth_dev, i, 208 s->fw_evtq.cntxt_id, 209 rte_socket_id()); 210 if (err) { 211 dev_err(adapter, "Failed to alloc ctrl txq. Err: %d", 212 err); 213 goto out; 214 } 215 snprintf(name, sizeof(name), "%s_ctrl_pool_%d", 216 pi->eth_dev->device->driver->name, 217 pi->eth_dev->data->port_id); 218 q->mb_pool = rte_pktmbuf_pool_create(name, s->ctrlq[i].q.size, 219 RTE_CACHE_LINE_SIZE, 220 RTE_MBUF_PRIV_ALIGN, 221 RTE_MBUF_DEFAULT_BUF_SIZE, 222 SOCKET_ID_ANY); 223 if (!q->mb_pool) { 224 err = -rte_errno; 225 dev_err(adapter, 226 "Can't create ctrl pool for port %d. Err: %d\n", 227 pi->eth_dev->data->port_id, err); 228 goto out; 229 } 230 } 231 return 0; 232 out: 233 t4_free_sge_resources(adapter); 234 return err; 235 } 236 237 /** 238 * cxgbe_poll_for_completion: Poll rxq for completion 239 * @q: rxq to poll 240 * @ms: milliseconds to delay 241 * @cnt: number of times to poll 242 * @c: completion to check for 'done' status 243 * 244 * Polls the rxq for reples until completion is done or the count 245 * expires. 246 */ 247 int cxgbe_poll_for_completion(struct sge_rspq *q, unsigned int ms, 248 unsigned int cnt, struct t4_completion *c) 249 { 250 unsigned int i; 251 unsigned int work_done, budget = 32; 252 253 if (!c) 254 return -EINVAL; 255 256 for (i = 0; i < cnt; i++) { 257 cxgbe_poll(q, NULL, budget, &work_done); 258 t4_os_lock(&c->lock); 259 if (c->done) { 260 t4_os_unlock(&c->lock); 261 return 0; 262 } 263 t4_os_unlock(&c->lock); 264 rte_delay_ms(ms); 265 } 266 return -ETIMEDOUT; 267 } 268 269 int cxgbe_setup_sge_fwevtq(struct adapter *adapter) 270 { 271 struct sge *s = &adapter->sge; 272 int err = 0; 273 int msi_idx = 0; 274 275 err = t4_sge_alloc_rxq(adapter, &s->fw_evtq, true, adapter->eth_dev, 276 msi_idx, NULL, fwevtq_handler, -1, NULL, 0, 277 rte_socket_id()); 278 return err; 279 } 280 281 static int closest_timer(const struct sge *s, int time) 282 { 283 unsigned int i, match = 0; 284 int delta, min_delta = INT_MAX; 285 286 for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { 287 delta = time - s->timer_val[i]; 288 if (delta < 0) 289 delta = -delta; 290 if (delta < min_delta) { 291 min_delta = delta; 292 match = i; 293 } 294 } 295 return match; 296 } 297 298 static int closest_thres(const struct sge *s, int thres) 299 { 300 unsigned int i, match = 0; 301 int delta, min_delta = INT_MAX; 302 303 for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { 304 delta = thres - s->counter_val[i]; 305 if (delta < 0) 306 delta = -delta; 307 if (delta < min_delta) { 308 min_delta = delta; 309 match = i; 310 } 311 } 312 return match; 313 } 314 315 /** 316 * cxgb4_set_rspq_intr_params - set a queue's interrupt holdoff parameters 317 * @q: the Rx queue 318 * @us: the hold-off time in us, or 0 to disable timer 319 * @cnt: the hold-off packet count, or 0 to disable counter 320 * 321 * Sets an Rx queue's interrupt hold-off time and packet count. At least 322 * one of the two needs to be enabled for the queue to generate interrupts. 323 */ 324 int cxgb4_set_rspq_intr_params(struct sge_rspq *q, unsigned int us, 325 unsigned int cnt) 326 { 327 struct adapter *adap = q->adapter; 328 unsigned int timer_val; 329 330 if (cnt) { 331 int err; 332 u32 v, new_idx; 333 334 new_idx = closest_thres(&adap->sge, cnt); 335 if (q->desc && q->pktcnt_idx != new_idx) { 336 /* the queue has already been created, update it */ 337 v = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | 338 V_FW_PARAMS_PARAM_X( 339 FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | 340 V_FW_PARAMS_PARAM_YZ(q->cntxt_id); 341 err = t4_set_params(adap, adap->mbox, adap->pf, 0, 1, 342 &v, &new_idx); 343 if (err) 344 return err; 345 } 346 q->pktcnt_idx = new_idx; 347 } 348 349 timer_val = (us == 0) ? X_TIMERREG_RESTART_COUNTER : 350 closest_timer(&adap->sge, us); 351 352 if ((us | cnt) == 0) 353 q->intr_params = V_QINTR_TIMER_IDX(X_TIMERREG_UPDATE_CIDX); 354 else 355 q->intr_params = V_QINTR_TIMER_IDX(timer_val) | 356 V_QINTR_CNT_EN(cnt > 0); 357 return 0; 358 } 359 360 /** 361 * Allocate an active-open TID and set it to the supplied value. 362 */ 363 int cxgbe_alloc_atid(struct tid_info *t, void *data) 364 { 365 int atid = -1; 366 367 t4_os_lock(&t->atid_lock); 368 if (t->afree) { 369 union aopen_entry *p = t->afree; 370 371 atid = p - t->atid_tab; 372 t->afree = p->next; 373 p->data = data; 374 t->atids_in_use++; 375 } 376 t4_os_unlock(&t->atid_lock); 377 return atid; 378 } 379 380 /** 381 * Release an active-open TID. 382 */ 383 void cxgbe_free_atid(struct tid_info *t, unsigned int atid) 384 { 385 union aopen_entry *p = &t->atid_tab[atid]; 386 387 t4_os_lock(&t->atid_lock); 388 p->next = t->afree; 389 t->afree = p; 390 t->atids_in_use--; 391 t4_os_unlock(&t->atid_lock); 392 } 393 394 /** 395 * Populate a TID_RELEASE WR. Caller must properly size the skb. 396 */ 397 static void mk_tid_release(struct rte_mbuf *mbuf, unsigned int tid) 398 { 399 struct cpl_tid_release *req; 400 401 req = rte_pktmbuf_mtod(mbuf, struct cpl_tid_release *); 402 INIT_TP_WR_MIT_CPL(req, CPL_TID_RELEASE, tid); 403 } 404 405 /** 406 * Release a TID and inform HW. If we are unable to allocate the release 407 * message we defer to a work queue. 408 */ 409 void cxgbe_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid, 410 unsigned short family) 411 { 412 struct rte_mbuf *mbuf; 413 struct adapter *adap = container_of(t, struct adapter, tids); 414 415 WARN_ON(tid >= t->ntids); 416 417 if (t->tid_tab[tid]) { 418 t->tid_tab[tid] = NULL; 419 __atomic_sub_fetch(&t->conns_in_use, 1, __ATOMIC_RELAXED); 420 if (t->hash_base && tid >= t->hash_base) { 421 if (family == FILTER_TYPE_IPV4) 422 __atomic_sub_fetch(&t->hash_tids_in_use, 1, 423 __ATOMIC_RELAXED); 424 } else { 425 if (family == FILTER_TYPE_IPV4) 426 __atomic_sub_fetch(&t->tids_in_use, 1, 427 __ATOMIC_RELAXED); 428 } 429 } 430 431 mbuf = rte_pktmbuf_alloc((&adap->sge.ctrlq[chan])->mb_pool); 432 if (mbuf) { 433 mbuf->data_len = sizeof(struct cpl_tid_release); 434 mbuf->pkt_len = mbuf->data_len; 435 mk_tid_release(mbuf, tid); 436 t4_mgmt_tx(&adap->sge.ctrlq[chan], mbuf); 437 } 438 } 439 440 /** 441 * Insert a TID. 442 */ 443 void cxgbe_insert_tid(struct tid_info *t, void *data, unsigned int tid, 444 unsigned short family) 445 { 446 t->tid_tab[tid] = data; 447 if (t->hash_base && tid >= t->hash_base) { 448 if (family == FILTER_TYPE_IPV4) 449 __atomic_add_fetch(&t->hash_tids_in_use, 1, 450 __ATOMIC_RELAXED); 451 } else { 452 if (family == FILTER_TYPE_IPV4) 453 __atomic_add_fetch(&t->tids_in_use, 1, 454 __ATOMIC_RELAXED); 455 } 456 457 __atomic_add_fetch(&t->conns_in_use, 1, __ATOMIC_RELAXED); 458 } 459 460 /** 461 * Free TID tables. 462 */ 463 static void tid_free(struct tid_info *t) 464 { 465 if (t->tid_tab) { 466 if (t->ftid_bmap) 467 rte_bitmap_free(t->ftid_bmap); 468 469 if (t->ftid_bmap_array) 470 t4_os_free(t->ftid_bmap_array); 471 472 t4_os_free(t->tid_tab); 473 } 474 475 memset(t, 0, sizeof(struct tid_info)); 476 } 477 478 /** 479 * Allocate and initialize the TID tables. Returns 0 on success. 480 */ 481 static int tid_init(struct tid_info *t) 482 { 483 size_t size; 484 unsigned int ftid_bmap_size; 485 unsigned int natids = t->natids; 486 unsigned int max_ftids = t->nftids; 487 488 ftid_bmap_size = rte_bitmap_get_memory_footprint(t->nftids); 489 size = t->ntids * sizeof(*t->tid_tab) + 490 max_ftids * sizeof(*t->ftid_tab) + 491 natids * sizeof(*t->atid_tab); 492 493 t->tid_tab = t4_os_alloc(size); 494 if (!t->tid_tab) 495 return -ENOMEM; 496 497 t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids]; 498 t->ftid_tab = (struct filter_entry *)&t->atid_tab[t->natids]; 499 t->ftid_bmap_array = t4_os_alloc(ftid_bmap_size); 500 if (!t->ftid_bmap_array) { 501 tid_free(t); 502 return -ENOMEM; 503 } 504 505 t4_os_lock_init(&t->atid_lock); 506 t4_os_lock_init(&t->ftid_lock); 507 508 t->afree = NULL; 509 t->atids_in_use = 0; 510 t->tids_in_use = 0; 511 t->conns_in_use = 0; 512 513 /* Setup the free list for atid_tab and clear the stid bitmap. */ 514 if (natids) { 515 while (--natids) 516 t->atid_tab[natids - 1].next = &t->atid_tab[natids]; 517 t->afree = t->atid_tab; 518 } 519 520 t->ftid_bmap = rte_bitmap_init(t->nftids, t->ftid_bmap_array, 521 ftid_bmap_size); 522 if (!t->ftid_bmap) { 523 tid_free(t); 524 return -ENOMEM; 525 } 526 527 return 0; 528 } 529 530 static inline void init_rspq(struct adapter *adap, struct sge_rspq *q, 531 unsigned int us, unsigned int cnt, 532 unsigned int size, unsigned int iqe_size) 533 { 534 q->adapter = adap; 535 cxgb4_set_rspq_intr_params(q, us, cnt); 536 q->iqe_len = iqe_size; 537 q->size = size; 538 } 539 540 int cxgbe_cfg_queue_count(struct rte_eth_dev *eth_dev) 541 { 542 struct port_info *temp_pi, *pi = eth_dev->data->dev_private; 543 struct adapter *adap = pi->adapter; 544 u16 first_txq = 0, first_rxq = 0; 545 struct sge *s = &adap->sge; 546 u16 i, max_rxqs, max_txqs; 547 548 max_rxqs = s->max_ethqsets; 549 max_txqs = s->max_ethqsets; 550 for_each_port(adap, i) { 551 temp_pi = adap2pinfo(adap, i); 552 if (i == pi->port_id) 553 break; 554 555 if (max_rxqs <= temp_pi->n_rx_qsets || 556 max_txqs <= temp_pi->n_tx_qsets) 557 return -ENOMEM; 558 559 first_rxq += temp_pi->n_rx_qsets; 560 first_txq += temp_pi->n_tx_qsets; 561 max_rxqs -= temp_pi->n_rx_qsets; 562 max_txqs -= temp_pi->n_tx_qsets; 563 } 564 565 if ((eth_dev->data->nb_rx_queues < 1) || 566 (eth_dev->data->nb_tx_queues < 1)) 567 return -EINVAL; 568 569 if (eth_dev->data->nb_rx_queues > max_rxqs || 570 eth_dev->data->nb_tx_queues > max_txqs) 571 return -EINVAL; 572 573 /* We must configure RSS, since config has changed*/ 574 pi->flags &= ~PORT_RSS_DONE; 575 576 pi->n_rx_qsets = eth_dev->data->nb_rx_queues; 577 pi->n_tx_qsets = eth_dev->data->nb_tx_queues; 578 pi->first_rxqset = first_rxq; 579 pi->first_txqset = first_txq; 580 581 return 0; 582 } 583 584 void cxgbe_cfg_queues_free(struct adapter *adap) 585 { 586 if (adap->sge.ethtxq) { 587 rte_free(adap->sge.ethtxq); 588 adap->sge.ethtxq = NULL; 589 } 590 591 if (adap->sge.ethrxq) { 592 rte_free(adap->sge.ethrxq); 593 adap->sge.ethrxq = NULL; 594 } 595 596 adap->flags &= ~CFG_QUEUES; 597 } 598 599 int cxgbe_cfg_queues(struct rte_eth_dev *eth_dev) 600 { 601 struct port_info *pi = eth_dev->data->dev_private; 602 struct adapter *adap = pi->adapter; 603 struct sge *s = &adap->sge; 604 u16 i; 605 606 if (!(adap->flags & CFG_QUEUES)) { 607 s->ethrxq = rte_calloc_socket(NULL, s->max_ethqsets, 608 sizeof(struct sge_eth_rxq), 0, 609 rte_socket_id()); 610 if (!s->ethrxq) 611 return -ENOMEM; 612 613 s->ethtxq = rte_calloc_socket(NULL, s->max_ethqsets, 614 sizeof(struct sge_eth_txq), 0, 615 rte_socket_id()); 616 if (!s->ethtxq) { 617 rte_free(s->ethrxq); 618 s->ethrxq = NULL; 619 return -ENOMEM; 620 } 621 622 for (i = 0; i < s->max_ethqsets; i++) { 623 struct sge_eth_rxq *r = &s->ethrxq[i]; 624 struct sge_eth_txq *t = &s->ethtxq[i]; 625 626 init_rspq(adap, &r->rspq, 5, 32, 1024, 64); 627 r->usembufs = 1; 628 r->fl.size = (r->usembufs ? 1024 : 72); 629 630 t->q.size = 1024; 631 } 632 633 init_rspq(adap, &adap->sge.fw_evtq, 0, 0, 1024, 64); 634 adap->flags |= CFG_QUEUES; 635 } 636 637 return 0; 638 } 639 640 void cxgbe_stats_get(struct port_info *pi, struct port_stats *stats) 641 { 642 t4_get_port_stats_offset(pi->adapter, pi->tx_chan, stats, 643 &pi->stats_base); 644 } 645 646 void cxgbe_stats_reset(struct port_info *pi) 647 { 648 t4_clr_port_stats(pi->adapter, pi->tx_chan); 649 } 650 651 static void setup_memwin(struct adapter *adap) 652 { 653 u32 mem_win0_base; 654 655 /* For T5, only relative offset inside the PCIe BAR is passed */ 656 mem_win0_base = MEMWIN0_BASE; 657 658 /* 659 * Set up memory window for accessing adapter memory ranges. (Read 660 * back MA register to ensure that changes propagate before we attempt 661 * to use the new values.) 662 */ 663 t4_write_reg(adap, 664 PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, 665 MEMWIN_NIC), 666 mem_win0_base | V_BIR(0) | 667 V_WINDOW(ilog2(MEMWIN0_APERTURE) - X_WINDOW_SHIFT)); 668 t4_read_reg(adap, 669 PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, 670 MEMWIN_NIC)); 671 } 672 673 int cxgbe_init_rss(struct adapter *adap) 674 { 675 unsigned int i; 676 677 if (is_pf4(adap)) { 678 int err; 679 680 err = t4_init_rss_mode(adap, adap->mbox); 681 if (err) 682 return err; 683 } 684 685 for_each_port(adap, i) { 686 struct port_info *pi = adap2pinfo(adap, i); 687 688 pi->rss = rte_zmalloc(NULL, pi->rss_size * sizeof(u16), 0); 689 if (!pi->rss) 690 return -ENOMEM; 691 692 pi->rss_hf = CXGBE_RSS_HF_ALL; 693 } 694 return 0; 695 } 696 697 /** 698 * Dump basic information about the adapter. 699 */ 700 void cxgbe_print_adapter_info(struct adapter *adap) 701 { 702 /** 703 * Hardware/Firmware/etc. Version/Revision IDs. 704 */ 705 t4_dump_version_info(adap); 706 } 707 708 void cxgbe_print_port_info(struct adapter *adap) 709 { 710 int i; 711 char buf[80]; 712 struct rte_pci_addr *loc = &adap->pdev->addr; 713 714 for_each_port(adap, i) { 715 const struct port_info *pi = adap2pinfo(adap, i); 716 char *bufp = buf; 717 718 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_100M) 719 bufp += sprintf(bufp, "100M/"); 720 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_1G) 721 bufp += sprintf(bufp, "1G/"); 722 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_10G) 723 bufp += sprintf(bufp, "10G/"); 724 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_25G) 725 bufp += sprintf(bufp, "25G/"); 726 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_40G) 727 bufp += sprintf(bufp, "40G/"); 728 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_50G) 729 bufp += sprintf(bufp, "50G/"); 730 if (pi->link_cfg.pcaps & FW_PORT_CAP32_SPEED_100G) 731 bufp += sprintf(bufp, "100G/"); 732 if (bufp != buf) 733 --bufp; 734 sprintf(bufp, "BASE-%s", 735 t4_get_port_type_description( 736 (enum fw_port_type)pi->link_cfg.port_type)); 737 738 dev_info(adap, 739 " " PCI_PRI_FMT " Chelsio rev %d %s %s\n", 740 loc->domain, loc->bus, loc->devid, loc->function, 741 CHELSIO_CHIP_RELEASE(adap->params.chip), buf, 742 (adap->flags & USING_MSIX) ? " MSI-X" : 743 (adap->flags & USING_MSI) ? " MSI" : ""); 744 } 745 } 746 747 static int check_devargs_handler(const char *key, const char *value, void *p) 748 { 749 if (!strncmp(key, CXGBE_DEVARG_CMN_KEEP_OVLAN, strlen(key)) || 750 !strncmp(key, CXGBE_DEVARG_CMN_TX_MODE_LATENCY, strlen(key)) || 751 !strncmp(key, CXGBE_DEVARG_VF_FORCE_LINK_UP, strlen(key))) { 752 if (!strncmp(value, "1", 1)) { 753 bool *dst_val = (bool *)p; 754 755 *dst_val = true; 756 } 757 } 758 759 if (!strncmp(key, CXGBE_DEVARG_PF_FILTER_MODE, strlen(key)) || 760 !strncmp(key, CXGBE_DEVARG_PF_FILTER_MASK, strlen(key))) { 761 u32 *dst_val = (u32 *)p; 762 char *endptr = NULL; 763 u32 arg_val; 764 765 arg_val = strtoul(value, &endptr, 16); 766 if (errno || endptr == value) 767 return -EINVAL; 768 769 *dst_val = arg_val; 770 } 771 772 return 0; 773 } 774 775 static int cxgbe_get_devargs(struct rte_devargs *devargs, const char *key, 776 void *p) 777 { 778 struct rte_kvargs *kvlist; 779 int ret = 0; 780 781 if (!devargs) 782 return 0; 783 784 kvlist = rte_kvargs_parse(devargs->args, NULL); 785 if (!kvlist) 786 return 0; 787 788 if (!rte_kvargs_count(kvlist, key)) 789 goto out; 790 791 ret = rte_kvargs_process(kvlist, key, check_devargs_handler, p); 792 793 out: 794 rte_kvargs_free(kvlist); 795 796 return ret; 797 } 798 799 static void cxgbe_get_devargs_int(struct adapter *adap, bool *dst, 800 const char *key, bool default_value) 801 { 802 struct rte_pci_device *pdev = adap->pdev; 803 int ret; 804 bool devarg_value = default_value; 805 806 *dst = default_value; 807 if (!pdev) 808 return; 809 810 ret = cxgbe_get_devargs(pdev->device.devargs, key, &devarg_value); 811 if (ret) 812 return; 813 814 *dst = devarg_value; 815 } 816 817 static void cxgbe_get_devargs_u32(struct adapter *adap, u32 *dst, 818 const char *key, u32 default_value) 819 { 820 struct rte_pci_device *pdev = adap->pdev; 821 u32 devarg_value = default_value; 822 int ret; 823 824 *dst = default_value; 825 if (!pdev) 826 return; 827 828 ret = cxgbe_get_devargs(pdev->device.devargs, key, &devarg_value); 829 if (ret) 830 return; 831 832 *dst = devarg_value; 833 } 834 835 void cxgbe_process_devargs(struct adapter *adap) 836 { 837 cxgbe_get_devargs_int(adap, &adap->devargs.keep_ovlan, 838 CXGBE_DEVARG_CMN_KEEP_OVLAN, false); 839 cxgbe_get_devargs_int(adap, &adap->devargs.tx_mode_latency, 840 CXGBE_DEVARG_CMN_TX_MODE_LATENCY, false); 841 cxgbe_get_devargs_int(adap, &adap->devargs.force_link_up, 842 CXGBE_DEVARG_VF_FORCE_LINK_UP, false); 843 cxgbe_get_devargs_u32(adap, &adap->devargs.filtermode, 844 CXGBE_DEVARG_PF_FILTER_MODE, 0); 845 cxgbe_get_devargs_u32(adap, &adap->devargs.filtermask, 846 CXGBE_DEVARG_PF_FILTER_MASK, 0); 847 } 848 849 static void configure_vlan_types(struct adapter *adapter) 850 { 851 int i; 852 853 for_each_port(adapter, i) { 854 /* OVLAN Type 0x88a8 */ 855 t4_set_reg_field(adapter, MPS_PORT_RX_OVLAN_REG(i, A_RX_OVLAN0), 856 V_OVLAN_MASK(M_OVLAN_MASK) | 857 V_OVLAN_ETYPE(M_OVLAN_ETYPE), 858 V_OVLAN_MASK(M_OVLAN_MASK) | 859 V_OVLAN_ETYPE(0x88a8)); 860 /* OVLAN Type 0x9100 */ 861 t4_set_reg_field(adapter, MPS_PORT_RX_OVLAN_REG(i, A_RX_OVLAN1), 862 V_OVLAN_MASK(M_OVLAN_MASK) | 863 V_OVLAN_ETYPE(M_OVLAN_ETYPE), 864 V_OVLAN_MASK(M_OVLAN_MASK) | 865 V_OVLAN_ETYPE(0x9100)); 866 867 /* IVLAN 0X8100 */ 868 t4_set_reg_field(adapter, MPS_PORT_RX_IVLAN(i), 869 V_IVLAN_ETYPE(M_IVLAN_ETYPE), 870 V_IVLAN_ETYPE(0x8100)); 871 872 t4_set_reg_field(adapter, MPS_PORT_RX_CTL(i), 873 F_OVLAN_EN0 | F_OVLAN_EN1 | 874 F_IVLAN_EN, 875 F_OVLAN_EN0 | F_OVLAN_EN1 | 876 F_IVLAN_EN); 877 } 878 879 t4_tp_wr_bits_indirect(adapter, A_TP_INGRESS_CONFIG, V_RM_OVLAN(1), 880 V_RM_OVLAN(!adapter->devargs.keep_ovlan)); 881 } 882 883 static int cxgbe_get_filter_vnic_mode_from_devargs(u32 val) 884 { 885 u32 vnic_mode; 886 887 vnic_mode = val & (CXGBE_DEVARGS_FILTER_MODE_PF_VF | 888 CXGBE_DEVARGS_FILTER_MODE_VLAN_OUTER); 889 if (vnic_mode) { 890 switch (vnic_mode) { 891 case CXGBE_DEVARGS_FILTER_MODE_VLAN_OUTER: 892 return CXGBE_FILTER_VNIC_MODE_OVLAN; 893 case CXGBE_DEVARGS_FILTER_MODE_PF_VF: 894 return CXGBE_FILTER_VNIC_MODE_PFVF; 895 default: 896 return -EINVAL; 897 } 898 } 899 900 return CXGBE_FILTER_VNIC_MODE_NONE; 901 } 902 903 static int cxgbe_get_filter_mode_from_devargs(u32 val, bool closest_match) 904 { 905 int vnic_mode, fmode = 0; 906 bool found = false; 907 u8 i; 908 909 if (val >= CXGBE_DEVARGS_FILTER_MODE_MAX) { 910 pr_err("Unsupported flags set in filter mode. Must be < 0x%x\n", 911 CXGBE_DEVARGS_FILTER_MODE_MAX); 912 return -ERANGE; 913 } 914 915 vnic_mode = cxgbe_get_filter_vnic_mode_from_devargs(val); 916 if (vnic_mode < 0) { 917 pr_err("Unsupported Vnic-mode, more than 1 Vnic-mode selected\n"); 918 return vnic_mode; 919 } 920 921 if (vnic_mode) 922 fmode |= F_VNIC_ID; 923 if (val & CXGBE_DEVARGS_FILTER_MODE_PHYSICAL_PORT) 924 fmode |= F_PORT; 925 if (val & CXGBE_DEVARGS_FILTER_MODE_ETHERNET_DSTMAC) 926 fmode |= F_MACMATCH; 927 if (val & CXGBE_DEVARGS_FILTER_MODE_ETHERNET_ETHTYPE) 928 fmode |= F_ETHERTYPE; 929 if (val & CXGBE_DEVARGS_FILTER_MODE_VLAN_INNER) 930 fmode |= F_VLAN; 931 if (val & CXGBE_DEVARGS_FILTER_MODE_IP_TOS) 932 fmode |= F_TOS; 933 if (val & CXGBE_DEVARGS_FILTER_MODE_IP_PROTOCOL) 934 fmode |= F_PROTOCOL; 935 936 for (i = 0; i < ARRAY_SIZE(cxgbe_filter_mode_features); i++) { 937 if ((cxgbe_filter_mode_features[i] & fmode) == fmode) { 938 found = true; 939 break; 940 } 941 } 942 943 if (!found) 944 return -EINVAL; 945 946 return closest_match ? cxgbe_filter_mode_features[i] : fmode; 947 } 948 949 static int configure_filter_mode_mask(struct adapter *adap) 950 { 951 u32 params[2], val[2], nparams = 0; 952 int ret; 953 954 if (!adap->devargs.filtermode && !adap->devargs.filtermask) 955 return 0; 956 957 if (!adap->devargs.filtermode || !adap->devargs.filtermask) { 958 pr_err("Unsupported, Provide both filtermode and filtermask devargs\n"); 959 return -EINVAL; 960 } 961 962 if (adap->devargs.filtermask & ~adap->devargs.filtermode) { 963 pr_err("Unsupported, filtermask (0x%x) must be subset of filtermode (0x%x)\n", 964 adap->devargs.filtermask, adap->devargs.filtermode); 965 966 return -EINVAL; 967 } 968 969 params[0] = CXGBE_FW_PARAM_DEV(FILTER) | 970 V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_FILTER_MODE_MASK); 971 972 ret = cxgbe_get_filter_mode_from_devargs(adap->devargs.filtermode, 973 true); 974 if (ret < 0) { 975 pr_err("Unsupported filtermode devargs combination:0x%x\n", 976 adap->devargs.filtermode); 977 return ret; 978 } 979 980 val[0] = V_FW_PARAMS_PARAM_FILTER_MODE(ret); 981 982 ret = cxgbe_get_filter_mode_from_devargs(adap->devargs.filtermask, 983 false); 984 if (ret < 0) { 985 pr_err("Unsupported filtermask devargs combination:0x%x\n", 986 adap->devargs.filtermask); 987 return ret; 988 } 989 990 val[0] |= V_FW_PARAMS_PARAM_FILTER_MASK(ret); 991 992 nparams++; 993 994 ret = cxgbe_get_filter_vnic_mode_from_devargs(adap->devargs.filtermode); 995 if (ret < 0) 996 return ret; 997 998 if (ret) { 999 params[1] = CXGBE_FW_PARAM_DEV(FILTER) | 1000 V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_FILTER_VNIC_MODE); 1001 1002 val[1] = ret - 1; 1003 1004 nparams++; 1005 } 1006 1007 return t4_set_params(adap, adap->mbox, adap->pf, 0, nparams, 1008 params, val); 1009 } 1010 1011 static void configure_pcie_ext_tag(struct adapter *adapter) 1012 { 1013 u16 v; 1014 int pos = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP); 1015 1016 if (!pos) 1017 return; 1018 1019 if (pos > 0) { 1020 t4_os_pci_read_cfg2(adapter, pos + PCI_EXP_DEVCTL, &v); 1021 v |= PCI_EXP_DEVCTL_EXT_TAG; 1022 t4_os_pci_write_cfg2(adapter, pos + PCI_EXP_DEVCTL, v); 1023 if (is_t6(adapter->params.chip)) { 1024 t4_set_reg_field(adapter, A_PCIE_CFG2, 1025 V_T6_TOTMAXTAG(M_T6_TOTMAXTAG), 1026 V_T6_TOTMAXTAG(7)); 1027 t4_set_reg_field(adapter, A_PCIE_CMD_CFG, 1028 V_T6_MINTAG(M_T6_MINTAG), 1029 V_T6_MINTAG(8)); 1030 } else { 1031 t4_set_reg_field(adapter, A_PCIE_CFG2, 1032 V_TOTMAXTAG(M_TOTMAXTAG), 1033 V_TOTMAXTAG(3)); 1034 t4_set_reg_field(adapter, A_PCIE_CMD_CFG, 1035 V_MINTAG(M_MINTAG), 1036 V_MINTAG(8)); 1037 } 1038 } 1039 } 1040 1041 /* Figure out how many Queue Sets we can support */ 1042 void cxgbe_configure_max_ethqsets(struct adapter *adapter) 1043 { 1044 unsigned int ethqsets, reserved; 1045 1046 /* We need to reserve an Ingress Queue for the Asynchronous Firmware 1047 * Event Queue and 1 Control Queue per port. 1048 * 1049 * For each Queue Set, we'll need the ability to allocate two Egress 1050 * Contexts -- one for the Ingress Queue Free List and one for the TX 1051 * Ethernet Queue. 1052 */ 1053 reserved = max(adapter->params.nports, 1); 1054 if (is_pf4(adapter)) { 1055 struct pf_resources *pfres = &adapter->params.pfres; 1056 1057 ethqsets = min(pfres->niqflint, pfres->nethctrl); 1058 if (ethqsets > (pfres->neq / 2)) 1059 ethqsets = pfres->neq / 2; 1060 } else { 1061 struct vf_resources *vfres = &adapter->params.vfres; 1062 1063 ethqsets = min(vfres->niqflint, vfres->nethctrl); 1064 if (ethqsets > (vfres->neq / 2)) 1065 ethqsets = vfres->neq / 2; 1066 } 1067 1068 ethqsets -= reserved; 1069 adapter->sge.max_ethqsets = ethqsets; 1070 } 1071 1072 /* 1073 * Tweak configuration based on system architecture, etc. Most of these have 1074 * defaults assigned to them by Firmware Configuration Files (if we're using 1075 * them) but need to be explicitly set if we're using hard-coded 1076 * initialization. So these are essentially common tweaks/settings for 1077 * Configuration Files and hard-coded initialization ... 1078 */ 1079 static int adap_init0_tweaks(struct adapter *adapter) 1080 { 1081 u8 rx_dma_offset; 1082 1083 /* 1084 * Fix up various Host-Dependent Parameters like Page Size, Cache 1085 * Line Size, etc. The firmware default is for a 4KB Page Size and 1086 * 64B Cache Line Size ... 1087 */ 1088 t4_fixup_host_params_compat(adapter, CXGBE_PAGE_SIZE, L1_CACHE_BYTES, 1089 T5_LAST_REV); 1090 1091 /* 1092 * Keep the chip default offset to deliver Ingress packets into our 1093 * DMA buffers to zero 1094 */ 1095 rx_dma_offset = 0; 1096 t4_set_reg_field(adapter, A_SGE_CONTROL, V_PKTSHIFT(M_PKTSHIFT), 1097 V_PKTSHIFT(rx_dma_offset)); 1098 1099 t4_set_reg_field(adapter, A_SGE_FLM_CFG, 1100 V_CREDITCNT(M_CREDITCNT) | M_CREDITCNTPACKING, 1101 V_CREDITCNT(3) | V_CREDITCNTPACKING(1)); 1102 1103 t4_set_reg_field(adapter, A_SGE_INGRESS_RX_THRESHOLD, 1104 V_THRESHOLD_3(M_THRESHOLD_3), V_THRESHOLD_3(32U)); 1105 1106 t4_set_reg_field(adapter, A_SGE_CONTROL2, V_IDMAARBROUNDROBIN(1U), 1107 V_IDMAARBROUNDROBIN(1U)); 1108 1109 /* 1110 * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux 1111 * adds the pseudo header itself. 1112 */ 1113 t4_tp_wr_bits_indirect(adapter, A_TP_INGRESS_CONFIG, 1114 F_CSUM_HAS_PSEUDO_HDR, 0); 1115 1116 return 0; 1117 } 1118 1119 /* 1120 * Attempt to initialize the adapter via a Firmware Configuration File. 1121 */ 1122 static int adap_init0_config(struct adapter *adapter, int reset) 1123 { 1124 u32 finiver, finicsum, cfcsum, param, val; 1125 struct fw_caps_config_cmd caps_cmd; 1126 unsigned long mtype = 0, maddr = 0; 1127 u8 config_issued = 0; 1128 char config_name[20]; 1129 int cfg_addr, ret; 1130 1131 /* 1132 * Reset device if necessary. 1133 */ 1134 if (reset) { 1135 ret = t4_fw_reset(adapter, adapter->mbox, 1136 F_PIORSTMODE | F_PIORST); 1137 if (ret < 0) { 1138 dev_warn(adapter, "Firmware reset failed, error %d\n", 1139 -ret); 1140 goto bye; 1141 } 1142 } 1143 1144 cfg_addr = t4_flash_cfg_addr(adapter); 1145 if (cfg_addr < 0) { 1146 ret = cfg_addr; 1147 dev_warn(adapter, "Finding address for firmware config file in flash failed, error %d\n", 1148 -ret); 1149 goto bye; 1150 } 1151 1152 strcpy(config_name, "On Flash"); 1153 mtype = FW_MEMTYPE_CF_FLASH; 1154 maddr = cfg_addr; 1155 1156 /* Enable HASH filter region when support is available. */ 1157 val = 1; 1158 param = CXGBE_FW_PARAM_DEV(HASHFILTER_WITH_OFLD); 1159 t4_set_params(adapter, adapter->mbox, adapter->pf, 0, 1, 1160 ¶m, &val); 1161 1162 /* 1163 * Issue a Capability Configuration command to the firmware to get it 1164 * to parse the Configuration File. We don't use t4_fw_config_file() 1165 * because we want the ability to modify various features after we've 1166 * processed the configuration file ... 1167 */ 1168 memset(&caps_cmd, 0, sizeof(caps_cmd)); 1169 caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | 1170 F_FW_CMD_REQUEST | F_FW_CMD_READ); 1171 caps_cmd.cfvalid_to_len16 = 1172 cpu_to_be32(F_FW_CAPS_CONFIG_CMD_CFVALID | 1173 V_FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) | 1174 V_FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) | 1175 FW_LEN16(caps_cmd)); 1176 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), 1177 &caps_cmd); 1178 /* 1179 * If the CAPS_CONFIG failed with an ENOENT (for a Firmware 1180 * Configuration File in FLASH), our last gasp effort is to use the 1181 * Firmware Configuration File which is embedded in the firmware. A 1182 * very few early versions of the firmware didn't have one embedded 1183 * but we can ignore those. 1184 */ 1185 if (ret == -ENOENT) { 1186 dev_info(adapter, "%s: Going for embedded config in firmware..\n", 1187 __func__); 1188 1189 memset(&caps_cmd, 0, sizeof(caps_cmd)); 1190 caps_cmd.op_to_write = 1191 cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | 1192 F_FW_CMD_REQUEST | F_FW_CMD_READ); 1193 caps_cmd.cfvalid_to_len16 = cpu_to_be32(FW_LEN16(caps_cmd)); 1194 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, 1195 sizeof(caps_cmd), &caps_cmd); 1196 strcpy(config_name, "Firmware Default"); 1197 } 1198 1199 config_issued = 1; 1200 if (ret < 0) 1201 goto bye; 1202 1203 finiver = be32_to_cpu(caps_cmd.finiver); 1204 finicsum = be32_to_cpu(caps_cmd.finicsum); 1205 cfcsum = be32_to_cpu(caps_cmd.cfcsum); 1206 if (finicsum != cfcsum) 1207 dev_warn(adapter, "Configuration File checksum mismatch: [fini] csum=%#x, computed csum=%#x\n", 1208 finicsum, cfcsum); 1209 1210 /* 1211 * If we're a pure NIC driver then disable all offloading facilities. 1212 * This will allow the firmware to optimize aspects of the hardware 1213 * configuration which will result in improved performance. 1214 */ 1215 caps_cmd.niccaps &= cpu_to_be16(~FW_CAPS_CONFIG_NIC_ETHOFLD); 1216 caps_cmd.toecaps = 0; 1217 caps_cmd.iscsicaps = 0; 1218 caps_cmd.rdmacaps = 0; 1219 caps_cmd.fcoecaps = 0; 1220 caps_cmd.cryptocaps = 0; 1221 1222 /* 1223 * And now tell the firmware to use the configuration we just loaded. 1224 */ 1225 caps_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | 1226 F_FW_CMD_REQUEST | F_FW_CMD_WRITE); 1227 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); 1228 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), 1229 NULL); 1230 if (ret < 0) { 1231 dev_warn(adapter, "Unable to finalize Firmware Capabilities %d\n", 1232 -ret); 1233 goto bye; 1234 } 1235 1236 /* 1237 * Tweak configuration based on system architecture, etc. 1238 */ 1239 ret = adap_init0_tweaks(adapter); 1240 if (ret < 0) { 1241 dev_warn(adapter, "Unable to do init0-tweaks %d\n", -ret); 1242 goto bye; 1243 } 1244 1245 /* 1246 * And finally tell the firmware to initialize itself using the 1247 * parameters from the Configuration File. 1248 */ 1249 ret = t4_fw_initialize(adapter, adapter->mbox); 1250 if (ret < 0) { 1251 dev_warn(adapter, "Initializing Firmware failed, error %d\n", 1252 -ret); 1253 goto bye; 1254 } 1255 1256 /* 1257 * Return successfully and note that we're operating with parameters 1258 * not supplied by the driver, rather than from hard-wired 1259 * initialization constants buried in the driver. 1260 */ 1261 dev_info(adapter, 1262 "Successfully configured using Firmware Configuration File \"%s\", version %#x, computed checksum %#x\n", 1263 config_name, finiver, cfcsum); 1264 1265 return 0; 1266 1267 /* 1268 * Something bad happened. Return the error ... (If the "error" 1269 * is that there's no Configuration File on the adapter we don't 1270 * want to issue a warning since this is fairly common.) 1271 */ 1272 bye: 1273 if (config_issued && ret != -ENOENT) 1274 dev_warn(adapter, "\"%s\" configuration file error %d\n", 1275 config_name, -ret); 1276 1277 dev_debug(adapter, "%s: returning ret = %d ..\n", __func__, ret); 1278 return ret; 1279 } 1280 1281 static int adap_init0(struct adapter *adap) 1282 { 1283 struct fw_caps_config_cmd caps_cmd; 1284 int ret = 0; 1285 u32 v, port_vec; 1286 enum dev_state state; 1287 u32 params[7], val[7]; 1288 int reset = 1; 1289 int mbox = adap->mbox; 1290 1291 /* 1292 * Contact FW, advertising Master capability. 1293 */ 1294 ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state); 1295 if (ret < 0) { 1296 dev_err(adap, "%s: could not connect to FW, error %d\n", 1297 __func__, -ret); 1298 goto bye; 1299 } 1300 1301 CXGBE_DEBUG_MBOX(adap, "%s: adap->mbox = %d; ret = %d\n", __func__, 1302 adap->mbox, ret); 1303 1304 if (ret == mbox) 1305 adap->flags |= MASTER_PF; 1306 1307 if (state == DEV_STATE_INIT) { 1308 /* 1309 * Force halt and reset FW because a previous instance may have 1310 * exited abnormally without properly shutting down 1311 */ 1312 ret = t4_fw_halt(adap, adap->mbox, reset); 1313 if (ret < 0) { 1314 dev_err(adap, "Failed to halt. Exit.\n"); 1315 goto bye; 1316 } 1317 1318 ret = t4_fw_restart(adap, adap->mbox, reset); 1319 if (ret < 0) { 1320 dev_err(adap, "Failed to restart. Exit.\n"); 1321 goto bye; 1322 } 1323 state = (enum dev_state)((unsigned)state & ~DEV_STATE_INIT); 1324 } 1325 1326 t4_get_version_info(adap); 1327 1328 ret = t4_get_core_clock(adap, &adap->params.vpd); 1329 if (ret < 0) { 1330 dev_err(adap, "%s: could not get core clock, error %d\n", 1331 __func__, -ret); 1332 goto bye; 1333 } 1334 1335 /* 1336 * If the firmware is initialized already (and we're not forcing a 1337 * master initialization), note that we're living with existing 1338 * adapter parameters. Otherwise, it's time to try initializing the 1339 * adapter ... 1340 */ 1341 if (state == DEV_STATE_INIT) { 1342 dev_info(adap, "Coming up as %s: Adapter already initialized\n", 1343 adap->flags & MASTER_PF ? "MASTER" : "SLAVE"); 1344 } else { 1345 dev_info(adap, "Coming up as MASTER: Initializing adapter\n"); 1346 1347 ret = adap_init0_config(adap, reset); 1348 if (ret == -ENOENT) { 1349 dev_err(adap, 1350 "No Configuration File present on adapter. Using hard-wired configuration parameters.\n"); 1351 goto bye; 1352 } 1353 } 1354 if (ret < 0) { 1355 dev_err(adap, "could not initialize adapter, error %d\n", -ret); 1356 goto bye; 1357 } 1358 1359 /* Now that we've successfully configured and initialized the adapter 1360 * (or found it already initialized), we can ask the Firmware what 1361 * resources it has provisioned for us. 1362 */ 1363 ret = t4_get_pfres(adap); 1364 if (ret) { 1365 dev_err(adap->pdev_dev, 1366 "Unable to retrieve resource provisioning info\n"); 1367 goto bye; 1368 } 1369 1370 /* Find out what ports are available to us. */ 1371 v = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | 1372 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC); 1373 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, &v, &port_vec); 1374 if (ret < 0) { 1375 dev_err(adap, "%s: failure in t4_query_params; error = %d\n", 1376 __func__, ret); 1377 goto bye; 1378 } 1379 1380 adap->params.nports = hweight32(port_vec); 1381 adap->params.portvec = port_vec; 1382 1383 dev_debug(adap, "%s: adap->params.nports = %u\n", __func__, 1384 adap->params.nports); 1385 1386 /* 1387 * Give the SGE code a chance to pull in anything that it needs ... 1388 * Note that this must be called after we retrieve our VPD parameters 1389 * in order to know how to convert core ticks to seconds, etc. 1390 */ 1391 ret = t4_sge_init(adap); 1392 if (ret < 0) { 1393 dev_err(adap, "t4_sge_init failed with error %d\n", 1394 -ret); 1395 goto bye; 1396 } 1397 1398 /* 1399 * Grab some of our basic fundamental operating parameters. 1400 */ 1401 params[0] = CXGBE_FW_PARAM_PFVF(L2T_START); 1402 params[1] = CXGBE_FW_PARAM_PFVF(L2T_END); 1403 params[2] = CXGBE_FW_PARAM_PFVF(FILTER_START); 1404 params[3] = CXGBE_FW_PARAM_PFVF(FILTER_END); 1405 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 4, params, val); 1406 if (ret < 0) 1407 goto bye; 1408 adap->l2t_start = val[0]; 1409 adap->l2t_end = val[1]; 1410 adap->tids.ftid_base = val[2]; 1411 adap->tids.nftids = val[3] - val[2] + 1; 1412 1413 params[0] = CXGBE_FW_PARAM_PFVF(CLIP_START); 1414 params[1] = CXGBE_FW_PARAM_PFVF(CLIP_END); 1415 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 2, params, val); 1416 if (ret < 0) 1417 goto bye; 1418 adap->clipt_start = val[0]; 1419 adap->clipt_end = val[1]; 1420 1421 /* 1422 * Get device capabilities so we can determine what resources we need 1423 * to manage. 1424 */ 1425 memset(&caps_cmd, 0, sizeof(caps_cmd)); 1426 caps_cmd.op_to_write = htonl(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | 1427 F_FW_CMD_REQUEST | F_FW_CMD_READ); 1428 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); 1429 ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd), 1430 &caps_cmd); 1431 if (ret < 0) 1432 goto bye; 1433 1434 if ((caps_cmd.niccaps & cpu_to_be16(FW_CAPS_CONFIG_NIC_HASHFILTER)) && 1435 is_t6(adap->params.chip)) { 1436 if (cxgbe_init_hash_filter(adap) < 0) 1437 goto bye; 1438 } 1439 1440 /* See if FW supports FW_FILTER2 work request */ 1441 if (is_t4(adap->params.chip)) { 1442 adap->params.filter2_wr_support = 0; 1443 } else { 1444 params[0] = CXGBE_FW_PARAM_DEV(FILTER2_WR); 1445 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1446 1, params, val); 1447 adap->params.filter2_wr_support = (ret == 0 && val[0] != 0); 1448 } 1449 1450 /* Check if FW supports returning vin. 1451 * If this is not supported, driver will interpret 1452 * these values from viid. 1453 */ 1454 params[0] = CXGBE_FW_PARAM_DEV(OPAQUE_VIID_SMT_EXTN); 1455 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1456 1, params, val); 1457 adap->params.viid_smt_extn_support = (ret == 0 && val[0] != 0); 1458 1459 /* query tid-related parameters */ 1460 params[0] = CXGBE_FW_PARAM_DEV(NTID); 1461 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, 1462 params, val); 1463 if (ret < 0) 1464 goto bye; 1465 adap->tids.ntids = val[0]; 1466 adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS); 1467 1468 /* If we're running on newer firmware, let it know that we're 1469 * prepared to deal with encapsulated CPL messages. Older 1470 * firmware won't understand this and we'll just get 1471 * unencapsulated messages ... 1472 */ 1473 params[0] = CXGBE_FW_PARAM_PFVF(CPLFW4MSG_ENCAP); 1474 val[0] = 1; 1475 (void)t4_set_params(adap, adap->mbox, adap->pf, 0, 1, params, val); 1476 1477 /* 1478 * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL 1479 * capability. Earlier versions of the firmware didn't have the 1480 * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no 1481 * permission to use ULPTX MEMWRITE DSGL. 1482 */ 1483 if (is_t4(adap->params.chip)) { 1484 adap->params.ulptx_memwrite_dsgl = false; 1485 } else { 1486 params[0] = CXGBE_FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL); 1487 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1488 1, params, val); 1489 adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0); 1490 } 1491 1492 /* Query for max number of packets that can be coalesced for Tx */ 1493 params[0] = CXGBE_FW_PARAM_PFVF(MAX_PKTS_PER_ETH_TX_PKTS_WR); 1494 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, params, val); 1495 if (!ret && val[0] > 0) 1496 adap->params.max_tx_coalesce_num = val[0]; 1497 else 1498 adap->params.max_tx_coalesce_num = ETH_COALESCE_PKT_NUM; 1499 1500 params[0] = CXGBE_FW_PARAM_DEV(VI_ENABLE_INGRESS_AFTER_LINKUP); 1501 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, params, val); 1502 adap->params.vi_enable_rx = (ret == 0 && val[0] != 0); 1503 1504 /* 1505 * The MTU/MSS Table is initialized by now, so load their values. If 1506 * we're initializing the adapter, then we'll make any modifications 1507 * we want to the MTU/MSS Table and also initialize the congestion 1508 * parameters. 1509 */ 1510 t4_read_mtu_tbl(adap, adap->params.mtus, NULL); 1511 if (state != DEV_STATE_INIT) { 1512 int i; 1513 1514 /* 1515 * The default MTU Table contains values 1492 and 1500. 1516 * However, for TCP, it's better to have two values which are 1517 * a multiple of 8 +/- 4 bytes apart near this popular MTU. 1518 * This allows us to have a TCP Data Payload which is a 1519 * multiple of 8 regardless of what combination of TCP Options 1520 * are in use (always a multiple of 4 bytes) which is 1521 * important for performance reasons. For instance, if no 1522 * options are in use, then we have a 20-byte IP header and a 1523 * 20-byte TCP header. In this case, a 1500-byte MSS would 1524 * result in a TCP Data Payload of 1500 - 40 == 1460 bytes 1525 * which is not a multiple of 8. So using an MSS of 1488 in 1526 * this case results in a TCP Data Payload of 1448 bytes which 1527 * is a multiple of 8. On the other hand, if 12-byte TCP Time 1528 * Stamps have been negotiated, then an MTU of 1500 bytes 1529 * results in a TCP Data Payload of 1448 bytes which, as 1530 * above, is a multiple of 8 bytes ... 1531 */ 1532 for (i = 0; i < NMTUS; i++) 1533 if (adap->params.mtus[i] == 1492) { 1534 adap->params.mtus[i] = 1488; 1535 break; 1536 } 1537 1538 t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, 1539 adap->params.b_wnd); 1540 } 1541 t4_init_sge_params(adap); 1542 ret = configure_filter_mode_mask(adap); 1543 if (ret < 0) 1544 goto bye; 1545 t4_init_tp_params(adap); 1546 configure_pcie_ext_tag(adap); 1547 configure_vlan_types(adap); 1548 cxgbe_configure_max_ethqsets(adap); 1549 1550 adap->params.drv_memwin = MEMWIN_NIC; 1551 adap->flags |= FW_OK; 1552 dev_debug(adap, "%s: returning zero..\n", __func__); 1553 return 0; 1554 1555 /* 1556 * Something bad happened. If a command timed out or failed with EIO 1557 * FW does not operate within its spec or something catastrophic 1558 * happened to HW/FW, stop issuing commands. 1559 */ 1560 bye: 1561 if (ret != -ETIMEDOUT && ret != -EIO) 1562 t4_fw_bye(adap, adap->mbox); 1563 return ret; 1564 } 1565 1566 /** 1567 * t4_os_portmod_changed - handle port module changes 1568 * @adap: the adapter associated with the module change 1569 * @port_id: the port index whose module status has changed 1570 * 1571 * This is the OS-dependent handler for port module changes. It is 1572 * invoked when a port module is removed or inserted for any OS-specific 1573 * processing. 1574 */ 1575 void t4_os_portmod_changed(const struct adapter *adap, int port_id) 1576 { 1577 static const char * const mod_str[] = { 1578 NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" 1579 }; 1580 1581 const struct port_info *pi = adap2pinfo(adap, port_id); 1582 1583 if (pi->link_cfg.mod_type == FW_PORT_MOD_TYPE_NONE) 1584 dev_info(adap, "Port%d: port module unplugged\n", pi->port_id); 1585 else if (pi->link_cfg.mod_type < ARRAY_SIZE(mod_str)) 1586 dev_info(adap, "Port%d: %s port module inserted\n", pi->port_id, 1587 mod_str[pi->link_cfg.mod_type]); 1588 else if (pi->link_cfg.mod_type == FW_PORT_MOD_TYPE_NOTSUPPORTED) 1589 dev_info(adap, "Port%d: unsupported port module inserted\n", 1590 pi->port_id); 1591 else if (pi->link_cfg.mod_type == FW_PORT_MOD_TYPE_UNKNOWN) 1592 dev_info(adap, "Port%d: unknown port module inserted\n", 1593 pi->port_id); 1594 else if (pi->link_cfg.mod_type == FW_PORT_MOD_TYPE_ERROR) 1595 dev_info(adap, "Port%d: transceiver module error\n", 1596 pi->port_id); 1597 else 1598 dev_info(adap, "Port%d: unknown module type %d inserted\n", 1599 pi->port_id, pi->link_cfg.mod_type); 1600 } 1601 1602 void t4_os_link_changed(struct adapter *adap, int port_id) 1603 { 1604 struct port_info *pi = adap2pinfo(adap, port_id); 1605 1606 /* If link status has not changed or if firmware doesn't 1607 * support enabling/disabling VI's Rx path during runtime, 1608 * then return. 1609 */ 1610 if (adap->params.vi_enable_rx == 0 || 1611 pi->vi_en_rx == pi->link_cfg.link_ok) 1612 return; 1613 1614 /* Don't enable VI Rx path, if link has been administratively 1615 * turned off. 1616 */ 1617 if (pi->vi_en_tx == 0 && pi->vi_en_rx == 0) 1618 return; 1619 1620 /* When link goes down, disable the port's Rx path to drop 1621 * Rx traffic closer to the wire, instead of processing it 1622 * further in the Rx pipeline. The Rx path will be re-enabled 1623 * once the link up message comes in firmware event queue. 1624 */ 1625 pi->vi_en_rx = pi->link_cfg.link_ok; 1626 t4_enable_vi(adap, adap->mbox, pi->viid, pi->vi_en_rx, pi->vi_en_tx); 1627 } 1628 1629 bool cxgbe_force_linkup(struct adapter *adap) 1630 { 1631 if (is_pf4(adap)) 1632 return false; /* force_linkup not required for pf driver */ 1633 1634 return adap->devargs.force_link_up; 1635 } 1636 1637 /** 1638 * link_start - enable a port 1639 * @dev: the port to enable 1640 * 1641 * Performs the MAC and PHY actions needed to enable a port. 1642 */ 1643 int cxgbe_link_start(struct port_info *pi) 1644 { 1645 struct adapter *adapter = pi->adapter; 1646 u64 conf_offloads; 1647 unsigned int mtu; 1648 int ret; 1649 1650 mtu = pi->eth_dev->data->dev_conf.rxmode.max_rx_pkt_len - 1651 (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN); 1652 1653 conf_offloads = pi->eth_dev->data->dev_conf.rxmode.offloads; 1654 1655 /* 1656 * We do not set address filters and promiscuity here, the stack does 1657 * that step explicitly. 1658 */ 1659 ret = t4_set_rxmode(adapter, adapter->mbox, pi->viid, mtu, -1, -1, -1, 1660 !!(conf_offloads & DEV_RX_OFFLOAD_VLAN_STRIP), 1661 true); 1662 if (ret == 0) { 1663 ret = cxgbe_mpstcam_modify(pi, (int)pi->xact_addr_filt, 1664 (u8 *)&pi->eth_dev->data->mac_addrs[0]); 1665 if (ret >= 0) { 1666 pi->xact_addr_filt = ret; 1667 ret = 0; 1668 } 1669 } 1670 if (ret == 0 && is_pf4(adapter)) 1671 ret = t4_link_l1cfg(pi, pi->link_cfg.admin_caps); 1672 if (ret == 0) { 1673 /* Disable VI Rx until link up message is received in 1674 * firmware event queue, if firmware supports enabling/ 1675 * disabling VI Rx at runtime. 1676 */ 1677 pi->vi_en_rx = adapter->params.vi_enable_rx ? 0 : 1; 1678 pi->vi_en_tx = 1; 1679 ret = t4_enable_vi_params(adapter, adapter->mbox, pi->viid, 1680 pi->vi_en_rx, pi->vi_en_tx, false); 1681 } 1682 1683 if (ret == 0 && cxgbe_force_linkup(adapter)) 1684 pi->eth_dev->data->dev_link.link_status = ETH_LINK_UP; 1685 return ret; 1686 } 1687 1688 /** 1689 * cxgbe_write_rss_conf - flash the RSS configuration for a given port 1690 * @pi: the port 1691 * @rss_hf: Hash configuration to apply 1692 */ 1693 int cxgbe_write_rss_conf(const struct port_info *pi, uint64_t rss_hf) 1694 { 1695 struct adapter *adapter = pi->adapter; 1696 const struct sge_eth_rxq *rxq; 1697 u64 flags = 0; 1698 u16 rss; 1699 int err; 1700 1701 /* Should never be called before setting up sge eth rx queues */ 1702 if (!(adapter->flags & FULL_INIT_DONE)) { 1703 dev_err(adap, "%s No RXQs available on port %d\n", 1704 __func__, pi->port_id); 1705 return -EINVAL; 1706 } 1707 1708 /* Don't allow unsupported hash functions */ 1709 if (rss_hf & ~CXGBE_RSS_HF_ALL) 1710 return -EINVAL; 1711 1712 if (rss_hf & CXGBE_RSS_HF_IPV4_MASK) 1713 flags |= F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN; 1714 1715 if (rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) 1716 flags |= F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN; 1717 1718 if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) 1719 flags |= F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN | 1720 F_FW_RSS_VI_CONFIG_CMD_UDPEN; 1721 1722 if (rss_hf & CXGBE_RSS_HF_IPV6_MASK) 1723 flags |= F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN; 1724 1725 if (rss_hf & CXGBE_RSS_HF_TCP_IPV6_MASK) 1726 flags |= F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN | 1727 F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN; 1728 1729 if (rss_hf & CXGBE_RSS_HF_UDP_IPV6_MASK) 1730 flags |= F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN | 1731 F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN | 1732 F_FW_RSS_VI_CONFIG_CMD_UDPEN; 1733 1734 rxq = &adapter->sge.ethrxq[pi->first_rxqset]; 1735 rss = rxq[0].rspq.abs_id; 1736 1737 /* If Tunnel All Lookup isn't specified in the global RSS 1738 * Configuration, then we need to specify a default Ingress 1739 * Queue for any ingress packets which aren't hashed. We'll 1740 * use our first ingress queue ... 1741 */ 1742 err = t4_config_vi_rss(adapter, adapter->mbox, pi->viid, 1743 flags, rss); 1744 return err; 1745 } 1746 1747 /** 1748 * cxgbe_write_rss - write the RSS table for a given port 1749 * @pi: the port 1750 * @queues: array of queue indices for RSS 1751 * 1752 * Sets up the portion of the HW RSS table for the port's VI to distribute 1753 * packets to the Rx queues in @queues. 1754 */ 1755 int cxgbe_write_rss(const struct port_info *pi, const u16 *queues) 1756 { 1757 u16 *rss; 1758 int i, err; 1759 struct adapter *adapter = pi->adapter; 1760 const struct sge_eth_rxq *rxq; 1761 1762 /* Should never be called before setting up sge eth rx queues */ 1763 BUG_ON(!(adapter->flags & FULL_INIT_DONE)); 1764 1765 rxq = &adapter->sge.ethrxq[pi->first_rxqset]; 1766 rss = rte_zmalloc(NULL, pi->rss_size * sizeof(u16), 0); 1767 if (!rss) 1768 return -ENOMEM; 1769 1770 /* map the queue indices to queue ids */ 1771 for (i = 0; i < pi->rss_size; i++, queues++) 1772 rss[i] = rxq[*queues].rspq.abs_id; 1773 1774 err = t4_config_rss_range(adapter, adapter->pf, pi->viid, 0, 1775 pi->rss_size, rss, pi->rss_size); 1776 rte_free(rss); 1777 return err; 1778 } 1779 1780 /** 1781 * setup_rss - configure RSS 1782 * @adapter: the adapter 1783 * 1784 * Sets up RSS to distribute packets to multiple receive queues. We 1785 * configure the RSS CPU lookup table to distribute to the number of HW 1786 * receive queues, and the response queue lookup table to narrow that 1787 * down to the response queues actually configured for each port. 1788 * We always configure the RSS mapping for all ports since the mapping 1789 * table has plenty of entries. 1790 */ 1791 int cxgbe_setup_rss(struct port_info *pi) 1792 { 1793 int j, err; 1794 struct adapter *adapter = pi->adapter; 1795 1796 dev_debug(adapter, "%s: pi->rss_size = %u; pi->n_rx_qsets = %u\n", 1797 __func__, pi->rss_size, pi->n_rx_qsets); 1798 1799 if (!(pi->flags & PORT_RSS_DONE)) { 1800 if (adapter->flags & FULL_INIT_DONE) { 1801 /* Fill default values with equal distribution */ 1802 for (j = 0; j < pi->rss_size; j++) 1803 pi->rss[j] = j % pi->n_rx_qsets; 1804 1805 err = cxgbe_write_rss(pi, pi->rss); 1806 if (err) 1807 return err; 1808 1809 err = cxgbe_write_rss_conf(pi, pi->rss_hf); 1810 if (err) 1811 return err; 1812 pi->flags |= PORT_RSS_DONE; 1813 } 1814 } 1815 return 0; 1816 } 1817 1818 /* 1819 * Enable NAPI scheduling and interrupt generation for all Rx queues. 1820 */ 1821 static void enable_rx(struct adapter *adap, struct sge_rspq *q) 1822 { 1823 /* 0-increment GTS to start the timer and enable interrupts */ 1824 t4_write_reg(adap, is_pf4(adap) ? MYPF_REG(A_SGE_PF_GTS) : 1825 T4VF_SGE_BASE_ADDR + A_SGE_VF_GTS, 1826 V_SEINTARM(q->intr_params) | 1827 V_INGRESSQID(q->cntxt_id)); 1828 } 1829 1830 void cxgbe_enable_rx_queues(struct port_info *pi) 1831 { 1832 struct adapter *adap = pi->adapter; 1833 struct sge *s = &adap->sge; 1834 unsigned int i; 1835 1836 for (i = 0; i < pi->n_rx_qsets; i++) 1837 enable_rx(adap, &s->ethrxq[pi->first_rxqset + i].rspq); 1838 } 1839 1840 /** 1841 * fw_caps_to_speed_caps - translate Firmware Port Caps to Speed Caps. 1842 * @port_type: Firmware Port Type 1843 * @fw_caps: Firmware Port Capabilities 1844 * @speed_caps: Device Info Speed Capabilities 1845 * 1846 * Translate a Firmware Port Capabilities specification to Device Info 1847 * Speed Capabilities. 1848 */ 1849 static void fw_caps_to_speed_caps(enum fw_port_type port_type, 1850 unsigned int fw_caps, 1851 u32 *speed_caps) 1852 { 1853 #define SET_SPEED(__speed_name) \ 1854 do { \ 1855 *speed_caps |= ETH_LINK_ ## __speed_name; \ 1856 } while (0) 1857 1858 #define FW_CAPS_TO_SPEED(__fw_name) \ 1859 do { \ 1860 if (fw_caps & FW_PORT_CAP32_ ## __fw_name) \ 1861 SET_SPEED(__fw_name); \ 1862 } while (0) 1863 1864 switch (port_type) { 1865 case FW_PORT_TYPE_BT_SGMII: 1866 case FW_PORT_TYPE_BT_XFI: 1867 case FW_PORT_TYPE_BT_XAUI: 1868 FW_CAPS_TO_SPEED(SPEED_100M); 1869 FW_CAPS_TO_SPEED(SPEED_1G); 1870 FW_CAPS_TO_SPEED(SPEED_10G); 1871 break; 1872 1873 case FW_PORT_TYPE_KX4: 1874 case FW_PORT_TYPE_KX: 1875 case FW_PORT_TYPE_FIBER_XFI: 1876 case FW_PORT_TYPE_FIBER_XAUI: 1877 case FW_PORT_TYPE_SFP: 1878 case FW_PORT_TYPE_QSFP_10G: 1879 case FW_PORT_TYPE_QSA: 1880 FW_CAPS_TO_SPEED(SPEED_1G); 1881 FW_CAPS_TO_SPEED(SPEED_10G); 1882 break; 1883 1884 case FW_PORT_TYPE_KR: 1885 SET_SPEED(SPEED_10G); 1886 break; 1887 1888 case FW_PORT_TYPE_BP_AP: 1889 case FW_PORT_TYPE_BP4_AP: 1890 SET_SPEED(SPEED_1G); 1891 SET_SPEED(SPEED_10G); 1892 break; 1893 1894 case FW_PORT_TYPE_BP40_BA: 1895 case FW_PORT_TYPE_QSFP: 1896 SET_SPEED(SPEED_40G); 1897 break; 1898 1899 case FW_PORT_TYPE_CR_QSFP: 1900 case FW_PORT_TYPE_SFP28: 1901 case FW_PORT_TYPE_KR_SFP28: 1902 FW_CAPS_TO_SPEED(SPEED_1G); 1903 FW_CAPS_TO_SPEED(SPEED_10G); 1904 FW_CAPS_TO_SPEED(SPEED_25G); 1905 break; 1906 1907 case FW_PORT_TYPE_CR2_QSFP: 1908 SET_SPEED(SPEED_50G); 1909 break; 1910 1911 case FW_PORT_TYPE_KR4_100G: 1912 case FW_PORT_TYPE_CR4_QSFP: 1913 FW_CAPS_TO_SPEED(SPEED_25G); 1914 FW_CAPS_TO_SPEED(SPEED_40G); 1915 FW_CAPS_TO_SPEED(SPEED_50G); 1916 FW_CAPS_TO_SPEED(SPEED_100G); 1917 break; 1918 1919 default: 1920 break; 1921 } 1922 1923 #undef FW_CAPS_TO_SPEED 1924 #undef SET_SPEED 1925 } 1926 1927 /** 1928 * cxgbe_get_speed_caps - Fetch supported speed capabilities 1929 * @pi: Underlying port's info 1930 * @speed_caps: Device Info speed capabilities 1931 * 1932 * Fetch supported speed capabilities of the underlying port. 1933 */ 1934 void cxgbe_get_speed_caps(struct port_info *pi, u32 *speed_caps) 1935 { 1936 *speed_caps = 0; 1937 1938 fw_caps_to_speed_caps(pi->link_cfg.port_type, pi->link_cfg.pcaps, 1939 speed_caps); 1940 1941 if (!(pi->link_cfg.pcaps & FW_PORT_CAP32_ANEG)) 1942 *speed_caps |= ETH_LINK_SPEED_FIXED; 1943 } 1944 1945 /** 1946 * cxgbe_set_link_status - Set device link up or down. 1947 * @pi: Underlying port's info 1948 * @status: 0 - down, 1 - up 1949 * 1950 * Set the device link up or down. 1951 */ 1952 int cxgbe_set_link_status(struct port_info *pi, bool status) 1953 { 1954 struct adapter *adapter = pi->adapter; 1955 int err = 0; 1956 1957 /* Wait for link up message from firmware to enable Rx path, 1958 * if firmware supports enabling/disabling VI Rx at runtime. 1959 */ 1960 pi->vi_en_rx = adapter->params.vi_enable_rx ? 0 : status; 1961 pi->vi_en_tx = status; 1962 err = t4_enable_vi(adapter, adapter->mbox, pi->viid, pi->vi_en_rx, 1963 pi->vi_en_tx); 1964 if (err) { 1965 dev_err(adapter, "%s: disable_vi failed: %d\n", __func__, err); 1966 return err; 1967 } 1968 1969 if (!status) 1970 t4_reset_link_config(adapter, pi->pidx); 1971 1972 return 0; 1973 } 1974 1975 /** 1976 * cxgb_up - enable the adapter 1977 * @adap: adapter being enabled 1978 * 1979 * Called when the first port is enabled, this function performs the 1980 * actions necessary to make an adapter operational, such as completing 1981 * the initialization of HW modules, and enabling interrupts. 1982 */ 1983 int cxgbe_up(struct adapter *adap) 1984 { 1985 enable_rx(adap, &adap->sge.fw_evtq); 1986 t4_sge_tx_monitor_start(adap); 1987 if (is_pf4(adap)) 1988 t4_intr_enable(adap); 1989 adap->flags |= FULL_INIT_DONE; 1990 1991 /* TODO: deadman watchdog ?? */ 1992 return 0; 1993 } 1994 1995 /* 1996 * Close the port 1997 */ 1998 int cxgbe_down(struct port_info *pi) 1999 { 2000 return cxgbe_set_link_status(pi, false); 2001 } 2002 2003 /* 2004 * Release resources when all the ports have been stopped. 2005 */ 2006 void cxgbe_close(struct adapter *adapter) 2007 { 2008 if (adapter->flags & FULL_INIT_DONE) { 2009 tid_free(&adapter->tids); 2010 t4_cleanup_mpstcam(adapter); 2011 t4_cleanup_clip_tbl(adapter); 2012 t4_cleanup_l2t(adapter); 2013 t4_cleanup_smt(adapter); 2014 if (is_pf4(adapter)) 2015 t4_intr_disable(adapter); 2016 t4_sge_tx_monitor_stop(adapter); 2017 t4_free_sge_resources(adapter); 2018 adapter->flags &= ~FULL_INIT_DONE; 2019 } 2020 2021 cxgbe_cfg_queues_free(adapter); 2022 2023 if (is_pf4(adapter) && (adapter->flags & FW_OK)) 2024 t4_fw_bye(adapter, adapter->mbox); 2025 } 2026 2027 static void adap_smt_index(struct adapter *adapter, u32 *smt_start_idx, 2028 u32 *smt_size) 2029 { 2030 u32 params[2], smt_val[2]; 2031 int ret; 2032 2033 params[0] = CXGBE_FW_PARAM_PFVF(GET_SMT_START); 2034 params[1] = CXGBE_FW_PARAM_PFVF(GET_SMT_SIZE); 2035 2036 ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0, 2037 2, params, smt_val); 2038 2039 /* if FW doesn't recognize this command then set it to default setting 2040 * which is start index as 0 and size as 256. 2041 */ 2042 if (ret < 0) { 2043 *smt_start_idx = 0; 2044 *smt_size = SMT_SIZE; 2045 } else { 2046 *smt_start_idx = smt_val[0]; 2047 /* smt size can be zero, if nsmt is not yet configured in 2048 * the config file or set as zero, then configure all the 2049 * remaining entries to this PF itself. 2050 */ 2051 if (!smt_val[1]) 2052 *smt_size = SMT_SIZE - *smt_start_idx; 2053 else 2054 *smt_size = smt_val[1]; 2055 } 2056 } 2057 2058 int cxgbe_probe(struct adapter *adapter) 2059 { 2060 u32 smt_start_idx, smt_size; 2061 struct port_info *pi; 2062 int func, i; 2063 int err = 0; 2064 u32 whoami; 2065 int chip; 2066 2067 whoami = t4_read_reg(adapter, A_PL_WHOAMI); 2068 chip = t4_get_chip_type(adapter, 2069 CHELSIO_PCI_ID_VER(adapter->pdev->id.device_id)); 2070 if (chip < 0) 2071 return chip; 2072 2073 func = CHELSIO_CHIP_VERSION(chip) <= CHELSIO_T5 ? 2074 G_SOURCEPF(whoami) : G_T6_SOURCEPF(whoami); 2075 2076 adapter->mbox = func; 2077 adapter->pf = func; 2078 2079 t4_os_lock_init(&adapter->mbox_lock); 2080 TAILQ_INIT(&adapter->mbox_list); 2081 t4_os_lock_init(&adapter->win0_lock); 2082 2083 err = t4_prep_adapter(adapter); 2084 if (err) 2085 return err; 2086 2087 setup_memwin(adapter); 2088 err = adap_init0(adapter); 2089 if (err) { 2090 dev_err(adapter, "%s: Adapter initialization failed, error %d\n", 2091 __func__, err); 2092 goto out_free; 2093 } 2094 2095 if (!is_t4(adapter->params.chip)) { 2096 /* 2097 * The userspace doorbell BAR is split evenly into doorbell 2098 * regions, each associated with an egress queue. If this 2099 * per-queue region is large enough (at least UDBS_SEG_SIZE) 2100 * then it can be used to submit a tx work request with an 2101 * implied doorbell. Enable write combining on the BAR if 2102 * there is room for such work requests. 2103 */ 2104 int s_qpp, qpp, num_seg; 2105 2106 s_qpp = (S_QUEUESPERPAGEPF0 + 2107 (S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * 2108 adapter->pf); 2109 qpp = 1 << ((t4_read_reg(adapter, 2110 A_SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp) 2111 & M_QUEUESPERPAGEPF0); 2112 num_seg = CXGBE_PAGE_SIZE / UDBS_SEG_SIZE; 2113 if (qpp > num_seg) 2114 dev_warn(adapter, "Incorrect SGE EGRESS QUEUES_PER_PAGE configuration, continuing in debug mode\n"); 2115 2116 adapter->bar2 = (void *)adapter->pdev->mem_resource[2].addr; 2117 if (!adapter->bar2) { 2118 dev_err(adapter, "cannot map device bar2 region\n"); 2119 err = -ENOMEM; 2120 goto out_free; 2121 } 2122 t4_write_reg(adapter, A_SGE_STAT_CFG, V_STATSOURCE_T5(7) | 2123 V_STATMODE(0)); 2124 } 2125 2126 for_each_port(adapter, i) { 2127 const unsigned int numa_node = rte_socket_id(); 2128 char name[RTE_ETH_NAME_MAX_LEN]; 2129 struct rte_eth_dev *eth_dev; 2130 2131 snprintf(name, sizeof(name), "%s_%d", 2132 adapter->pdev->device.name, i); 2133 2134 if (i == 0) { 2135 /* First port is already allocated by DPDK */ 2136 eth_dev = adapter->eth_dev; 2137 goto allocate_mac; 2138 } 2139 2140 /* 2141 * now do all data allocation - for eth_dev structure, 2142 * and internal (private) data for the remaining ports 2143 */ 2144 2145 /* reserve an ethdev entry */ 2146 eth_dev = rte_eth_dev_allocate(name); 2147 if (!eth_dev) 2148 goto out_free; 2149 2150 eth_dev->data->dev_private = 2151 rte_zmalloc_socket(name, sizeof(struct port_info), 2152 RTE_CACHE_LINE_SIZE, numa_node); 2153 if (!eth_dev->data->dev_private) 2154 goto out_free; 2155 2156 allocate_mac: 2157 pi = eth_dev->data->dev_private; 2158 adapter->port[i] = pi; 2159 pi->eth_dev = eth_dev; 2160 pi->adapter = adapter; 2161 pi->xact_addr_filt = -1; 2162 pi->port_id = i; 2163 pi->pidx = i; 2164 2165 pi->eth_dev->device = &adapter->pdev->device; 2166 pi->eth_dev->dev_ops = adapter->eth_dev->dev_ops; 2167 pi->eth_dev->tx_pkt_burst = adapter->eth_dev->tx_pkt_burst; 2168 pi->eth_dev->rx_pkt_burst = adapter->eth_dev->rx_pkt_burst; 2169 2170 rte_eth_copy_pci_info(pi->eth_dev, adapter->pdev); 2171 2172 pi->eth_dev->data->mac_addrs = rte_zmalloc(name, 2173 RTE_ETHER_ADDR_LEN, 0); 2174 if (!pi->eth_dev->data->mac_addrs) { 2175 dev_err(adapter, "%s: Mem allocation failed for storing mac addr, aborting\n", 2176 __func__); 2177 err = -1; 2178 goto out_free; 2179 } 2180 2181 if (i > 0) { 2182 /* First port will be notified by upper layer */ 2183 rte_eth_dev_probing_finish(eth_dev); 2184 } 2185 } 2186 2187 if (adapter->flags & FW_OK) { 2188 err = t4_port_init(adapter, adapter->mbox, adapter->pf, 0); 2189 if (err) { 2190 dev_err(adapter, "%s: t4_port_init failed with err %d\n", 2191 __func__, err); 2192 goto out_free; 2193 } 2194 } 2195 2196 err = cxgbe_cfg_queues(adapter->eth_dev); 2197 if (err) 2198 goto out_free; 2199 2200 cxgbe_print_adapter_info(adapter); 2201 cxgbe_print_port_info(adapter); 2202 2203 adapter->clipt = t4_init_clip_tbl(adapter->clipt_start, 2204 adapter->clipt_end); 2205 if (!adapter->clipt) { 2206 /* We tolerate a lack of clip_table, giving up some 2207 * functionality 2208 */ 2209 dev_warn(adapter, "could not allocate CLIP. Continuing\n"); 2210 } 2211 2212 adap_smt_index(adapter, &smt_start_idx, &smt_size); 2213 adapter->smt = t4_init_smt(smt_start_idx, smt_size); 2214 if (!adapter->smt) 2215 dev_warn(adapter, "could not allocate SMT, continuing\n"); 2216 2217 adapter->l2t = t4_init_l2t(adapter->l2t_start, adapter->l2t_end); 2218 if (!adapter->l2t) { 2219 /* We tolerate a lack of L2T, giving up some functionality */ 2220 dev_warn(adapter, "could not allocate L2T. Continuing\n"); 2221 } 2222 2223 if (tid_init(&adapter->tids) < 0) { 2224 /* Disable filtering support */ 2225 dev_warn(adapter, "could not allocate TID table, " 2226 "filter support disabled. Continuing\n"); 2227 } 2228 2229 t4_os_lock_init(&adapter->flow_lock); 2230 2231 adapter->mpstcam = t4_init_mpstcam(adapter); 2232 if (!adapter->mpstcam) 2233 dev_warn(adapter, "could not allocate mps tcam table." 2234 " Continuing\n"); 2235 2236 if (is_hashfilter(adapter)) { 2237 if (t4_read_reg(adapter, A_LE_DB_CONFIG) & F_HASHEN) { 2238 u32 hash_base, hash_reg; 2239 2240 hash_reg = A_LE_DB_TID_HASHBASE; 2241 hash_base = t4_read_reg(adapter, hash_reg); 2242 adapter->tids.hash_base = hash_base / 4; 2243 } 2244 } else { 2245 /* Disable hash filtering support */ 2246 dev_warn(adapter, 2247 "Maskless filter support disabled. Continuing\n"); 2248 } 2249 2250 err = cxgbe_init_rss(adapter); 2251 if (err) 2252 goto out_free; 2253 2254 return 0; 2255 2256 out_free: 2257 cxgbe_cfg_queues_free(adapter); 2258 2259 for_each_port(adapter, i) { 2260 pi = adap2pinfo(adapter, i); 2261 if (pi->viid != 0) 2262 t4_free_vi(adapter, adapter->mbox, adapter->pf, 2263 0, pi->viid); 2264 rte_eth_dev_release_port(pi->eth_dev); 2265 } 2266 2267 if (adapter->flags & FW_OK) 2268 t4_fw_bye(adapter, adapter->mbox); 2269 return -err; 2270 } 2271