1 /*- 2 * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB 3 * 4 * Copyright (c) 2021 - 2022 Intel Corporation 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenFabrics.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 /*$FreeBSD$*/ 35 36 #include "osdep.h" 37 #include "ice_rdma.h" 38 #include "irdma_di_if.h" 39 #include "irdma_main.h" 40 #include <sys/gsb_crc32.h> 41 #include <netinet/in_fib.h> 42 #include <netinet6/in6_fib.h> 43 #include <net/route/nhop.h> 44 #include <net/if_llatbl.h> 45 46 /* additional QP debuging option. Keep false unless needed */ 47 bool irdma_upload_context = false; 48 49 inline u32 50 irdma_rd32(struct irdma_dev_ctx *dev_ctx, u32 reg){ 51 52 KASSERT(reg < dev_ctx->mem_bus_space_size, 53 ("irdma: register offset %#jx too large (max is %#jx)", 54 (uintmax_t)reg, (uintmax_t)dev_ctx->mem_bus_space_size)); 55 56 return (bus_space_read_4(dev_ctx->mem_bus_space_tag, 57 dev_ctx->mem_bus_space_handle, reg)); 58 } 59 60 inline void 61 irdma_wr32(struct irdma_dev_ctx *dev_ctx, u32 reg, u32 value) 62 { 63 64 KASSERT(reg < dev_ctx->mem_bus_space_size, 65 ("irdma: register offset %#jx too large (max is %#jx)", 66 (uintmax_t)reg, (uintmax_t)dev_ctx->mem_bus_space_size)); 67 68 bus_space_write_4(dev_ctx->mem_bus_space_tag, 69 dev_ctx->mem_bus_space_handle, reg, value); 70 } 71 72 inline u64 73 irdma_rd64(struct irdma_dev_ctx *dev_ctx, u32 reg){ 74 75 KASSERT(reg < dev_ctx->mem_bus_space_size, 76 ("irdma: register offset %#jx too large (max is %#jx)", 77 (uintmax_t)reg, (uintmax_t)dev_ctx->mem_bus_space_size)); 78 79 return (bus_space_read_8(dev_ctx->mem_bus_space_tag, 80 dev_ctx->mem_bus_space_handle, reg)); 81 } 82 83 inline void 84 irdma_wr64(struct irdma_dev_ctx *dev_ctx, u32 reg, u64 value) 85 { 86 87 KASSERT(reg < dev_ctx->mem_bus_space_size, 88 ("irdma: register offset %#jx too large (max is %#jx)", 89 (uintmax_t)reg, (uintmax_t)dev_ctx->mem_bus_space_size)); 90 91 bus_space_write_8(dev_ctx->mem_bus_space_tag, 92 dev_ctx->mem_bus_space_handle, reg, value); 93 94 } 95 96 void 97 irdma_request_reset(struct irdma_pci_f *rf) 98 { 99 struct ice_rdma_peer *peer = rf->peer_info; 100 struct ice_rdma_request req = {0}; 101 102 req.type = ICE_RDMA_EVENT_RESET; 103 104 printf("%s:%d requesting pf-reset\n", __func__, __LINE__); 105 IRDMA_DI_REQ_HANDLER(peer, &req); 106 } 107 108 int 109 irdma_register_qset(struct irdma_sc_vsi *vsi, struct irdma_ws_node *tc_node) 110 { 111 struct irdma_device *iwdev = vsi->back_vsi; 112 struct ice_rdma_peer *peer = iwdev->rf->peer_info; 113 struct ice_rdma_request req = {0}; 114 struct ice_rdma_qset_update *res = &req.res; 115 116 req.type = ICE_RDMA_EVENT_QSET_REGISTER; 117 res->cnt_req = 1; 118 res->res_type = ICE_RDMA_QSET_ALLOC; 119 res->qsets.qs_handle = tc_node->qs_handle; 120 res->qsets.tc = tc_node->traffic_class; 121 res->qsets.vsi_id = vsi->vsi_idx; 122 123 IRDMA_DI_REQ_HANDLER(peer, &req); 124 125 tc_node->l2_sched_node_id = res->qsets.teid; 126 vsi->qos[tc_node->user_pri].l2_sched_node_id = 127 res->qsets.teid; 128 129 return 0; 130 } 131 132 void 133 irdma_unregister_qset(struct irdma_sc_vsi *vsi, struct irdma_ws_node *tc_node) 134 { 135 struct irdma_device *iwdev = vsi->back_vsi; 136 struct ice_rdma_peer *peer = iwdev->rf->peer_info; 137 struct ice_rdma_request req = {0}; 138 struct ice_rdma_qset_update *res = &req.res; 139 140 req.type = ICE_RDMA_EVENT_QSET_REGISTER; 141 res->res_allocated = 1; 142 res->res_type = ICE_RDMA_QSET_FREE; 143 res->qsets.vsi_id = vsi->vsi_idx; 144 res->qsets.teid = tc_node->l2_sched_node_id; 145 res->qsets.qs_handle = tc_node->qs_handle; 146 147 IRDMA_DI_REQ_HANDLER(peer, &req); 148 } 149 150 void * 151 hw_to_dev(struct irdma_hw *hw) 152 { 153 struct irdma_pci_f *rf; 154 155 rf = container_of(hw, struct irdma_pci_f, hw); 156 return rf->pcidev; 157 } 158 159 void 160 irdma_free_hash_desc(void *desc) 161 { 162 return; 163 } 164 165 int 166 irdma_init_hash_desc(void **desc) 167 { 168 return 0; 169 } 170 171 int 172 irdma_ieq_check_mpacrc(void *desc, 173 void *addr, u32 len, u32 val) 174 { 175 u32 crc = calculate_crc32c(0xffffffff, addr, len) ^ 0xffffffff; 176 int ret_code = 0; 177 178 if (crc != val) { 179 irdma_pr_err("mpa crc check fail %x %x\n", crc, val); 180 ret_code = -EINVAL; 181 } 182 printf("%s: result crc=%x value=%x\n", __func__, crc, val); 183 return ret_code; 184 } 185 186 /** 187 * irdma_add_ipv6_addr - add ipv6 address to the hw arp table 188 * @iwdev: irdma device 189 * @ifp: interface network device pointer 190 */ 191 static void 192 irdma_add_ipv6_addr(struct irdma_device *iwdev, struct ifnet *ifp) 193 { 194 struct ifaddr *ifa, *tmp; 195 struct sockaddr_in6 *sin6; 196 u32 local_ipaddr6[4]; 197 u8 *mac_addr; 198 char ip6buf[INET6_ADDRSTRLEN]; 199 200 if_addr_rlock(ifp); 201 IRDMA_TAILQ_FOREACH_SAFE(ifa, &ifp->if_addrhead, ifa_link, tmp) { 202 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 203 if (sin6->sin6_family != AF_INET6) 204 continue; 205 206 irdma_copy_ip_ntohl(local_ipaddr6, (u32 *)&sin6->sin6_addr); 207 mac_addr = IF_LLADDR(ifp); 208 209 printf("%s:%d IP=%s, MAC=%02x:%02x:%02x:%02x:%02x:%02x\n", 210 __func__, __LINE__, 211 ip6_sprintf(ip6buf, &sin6->sin6_addr), 212 mac_addr[0], mac_addr[1], mac_addr[2], 213 mac_addr[3], mac_addr[4], mac_addr[5]); 214 215 irdma_manage_arp_cache(iwdev->rf, mac_addr, local_ipaddr6, 216 IRDMA_ARP_ADD); 217 218 } 219 if_addr_runlock(ifp); 220 } 221 222 /** 223 * irdma_add_ipv4_addr - add ipv4 address to the hw arp table 224 * @iwdev: irdma device 225 * @ifp: interface network device pointer 226 */ 227 static void 228 irdma_add_ipv4_addr(struct irdma_device *iwdev, struct ifnet *ifp) 229 { 230 struct ifaddr *ifa; 231 struct sockaddr_in *sin; 232 u32 ip_addr[4] = {}; 233 u8 *mac_addr; 234 235 if_addr_rlock(ifp); 236 IRDMA_TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { 237 sin = (struct sockaddr_in *)ifa->ifa_addr; 238 if (sin->sin_family != AF_INET) 239 continue; 240 241 ip_addr[0] = ntohl(sin->sin_addr.s_addr); 242 mac_addr = IF_LLADDR(ifp); 243 244 printf("%s:%d IP=%d.%d.%d.%d, MAC=%02x:%02x:%02x:%02x:%02x:%02x\n", 245 __func__, __LINE__, 246 ip_addr[0] >> 24, 247 (ip_addr[0] >> 16) & 0xFF, 248 (ip_addr[0] >> 8) & 0xFF, 249 ip_addr[0] & 0xFF, 250 mac_addr[0], mac_addr[1], mac_addr[2], 251 mac_addr[3], mac_addr[4], mac_addr[5]); 252 253 irdma_manage_arp_cache(iwdev->rf, mac_addr, ip_addr, 254 IRDMA_ARP_ADD); 255 } 256 if_addr_runlock(ifp); 257 } 258 259 /** 260 * irdma_add_ip - add ip addresses 261 * @iwdev: irdma device 262 * 263 * Add ipv4/ipv6 addresses to the arp cache 264 */ 265 void 266 irdma_add_ip(struct irdma_device *iwdev) 267 { 268 struct ifnet *ifp = iwdev->netdev; 269 struct ifnet *ifv; 270 int i; 271 272 irdma_add_ipv4_addr(iwdev, ifp); 273 irdma_add_ipv6_addr(iwdev, ifp); 274 for (i = 0; ifp->if_vlantrunk != NULL && i < VLAN_N_VID; ++i) { 275 ifv = VLAN_DEVAT(ifp, i); 276 if (!ifv) 277 continue; 278 irdma_add_ipv4_addr(iwdev, ifv); 279 irdma_add_ipv6_addr(iwdev, ifv); 280 } 281 } 282 283 static void 284 irdma_ifaddrevent_handler(void *arg, struct ifnet *ifp, struct ifaddr *ifa, int event) 285 { 286 struct irdma_pci_f *rf = arg; 287 struct ifnet *ifv = NULL; 288 struct sockaddr_in *sin; 289 struct epoch_tracker et; 290 int arp_index = 0, i = 0; 291 u32 ip[4] = {}; 292 293 if (!ifa || !ifa->ifa_addr || !ifp) 294 return; 295 if (rf->iwdev->netdev != ifp) { 296 for (i = 0; rf->iwdev->netdev->if_vlantrunk != NULL && i < VLAN_N_VID; ++i) { 297 NET_EPOCH_ENTER(et); 298 ifv = VLAN_DEVAT(rf->iwdev->netdev, i); 299 NET_EPOCH_EXIT(et); 300 if (ifv == ifp) 301 break; 302 } 303 if (ifv != ifp) 304 return; 305 } 306 sin = (struct sockaddr_in *)ifa->ifa_addr; 307 308 switch (event) { 309 case IFADDR_EVENT_ADD: 310 if (sin->sin_family == AF_INET) 311 irdma_add_ipv4_addr(rf->iwdev, ifp); 312 else if (sin->sin_family == AF_INET6) 313 irdma_add_ipv6_addr(rf->iwdev, ifp); 314 break; 315 case IFADDR_EVENT_DEL: 316 if (sin->sin_family == AF_INET) { 317 ip[0] = ntohl(sin->sin_addr.s_addr); 318 } else if (sin->sin_family == AF_INET6) { 319 irdma_copy_ip_ntohl(ip, (u32 *)&((struct sockaddr_in6 *)sin)->sin6_addr); 320 } else { 321 break; 322 } 323 for_each_set_bit(arp_index, rf->allocated_arps, rf->arp_table_size) { 324 if (!memcmp(rf->arp_table[arp_index].ip_addr, ip, sizeof(ip))) { 325 irdma_manage_arp_cache(rf, rf->arp_table[arp_index].mac_addr, 326 rf->arp_table[arp_index].ip_addr, 327 IRDMA_ARP_DELETE); 328 } 329 } 330 break; 331 default: 332 break; 333 } 334 } 335 336 void 337 irdma_reg_ipaddr_event_cb(struct irdma_pci_f *rf) 338 { 339 rf->irdma_ifaddr_event = EVENTHANDLER_REGISTER(ifaddr_event_ext, 340 irdma_ifaddrevent_handler, 341 rf, 342 EVENTHANDLER_PRI_ANY); 343 } 344 345 void 346 irdma_dereg_ipaddr_event_cb(struct irdma_pci_f *rf) 347 { 348 EVENTHANDLER_DEREGISTER(ifaddr_event_ext, rf->irdma_ifaddr_event); 349 } 350 351 static int 352 irdma_get_route_ifp(struct sockaddr *dst_sin, struct ifnet *netdev, 353 struct ifnet **ifp, struct sockaddr **nexthop, bool *gateway) 354 { 355 struct nhop_object *nh; 356 357 if (dst_sin->sa_family == AF_INET6) 358 nh = fib6_lookup(RT_DEFAULT_FIB, &((struct sockaddr_in6 *)dst_sin)->sin6_addr, 0, NHR_NONE, 0); 359 else 360 nh = fib4_lookup(RT_DEFAULT_FIB, ((struct sockaddr_in *)dst_sin)->sin_addr, 0, NHR_NONE, 0); 361 if (!nh || (nh->nh_ifp != netdev && 362 rdma_vlan_dev_real_dev(nh->nh_ifp) != netdev)) 363 goto rt_not_found; 364 *gateway = (nh->nh_flags & NHF_GATEWAY) ? true : false; 365 *nexthop = (*gateway) ? &nh->gw_sa : dst_sin; 366 *ifp = nh->nh_ifp; 367 368 return 0; 369 370 rt_not_found: 371 pr_err("irdma: route not found\n"); 372 return -ENETUNREACH; 373 } 374 375 /** 376 * irdma_get_dst_mac - get destination mac address 377 * @cm_node: connection's node 378 * @dst_sin: destination address information 379 * @dst_mac: mac address array to return 380 */ 381 int 382 irdma_get_dst_mac(struct irdma_cm_node *cm_node, struct sockaddr *dst_sin, u8 *dst_mac) 383 { 384 struct ifnet *netdev = cm_node->iwdev->netdev; 385 #ifdef VIMAGE 386 struct rdma_cm_id *rdma_id = (struct rdma_cm_id *)cm_node->cm_id->context; 387 struct vnet *vnet = rdma_id->route.addr.dev_addr.net; 388 #endif 389 struct ifnet *ifp; 390 struct llentry *lle; 391 struct sockaddr *nexthop; 392 struct epoch_tracker et; 393 int err; 394 bool gateway; 395 396 NET_EPOCH_ENTER(et); 397 CURVNET_SET_QUIET(vnet); 398 err = irdma_get_route_ifp(dst_sin, netdev, &ifp, &nexthop, &gateway); 399 if (err) 400 goto get_route_fail; 401 402 if (dst_sin->sa_family == AF_INET) { 403 err = arpresolve(ifp, gateway, NULL, nexthop, dst_mac, NULL, &lle); 404 } else if (dst_sin->sa_family == AF_INET6) { 405 err = nd6_resolve(ifp, LLE_SF(AF_INET6, gateway), NULL, nexthop, 406 dst_mac, NULL, &lle); 407 } else { 408 err = -EPROTONOSUPPORT; 409 } 410 411 get_route_fail: 412 CURVNET_RESTORE(); 413 NET_EPOCH_EXIT(et); 414 if (err) { 415 pr_err("failed to resolve neighbor address (err=%d)\n", 416 err); 417 return -ENETUNREACH; 418 } 419 420 return 0; 421 } 422 423 /** 424 * irdma_addr_resolve_neigh - resolve neighbor address 425 * @cm_node: connection's node 426 * @dst_ip: remote ip address 427 * @arpindex: if there is an arp entry 428 */ 429 int 430 irdma_addr_resolve_neigh(struct irdma_cm_node *cm_node, 431 u32 dst_ip, int arpindex) 432 { 433 struct irdma_device *iwdev = cm_node->iwdev; 434 struct sockaddr_in dst_sin = {}; 435 int err; 436 u32 ip[4] = {}; 437 u8 dst_mac[MAX_ADDR_LEN]; 438 439 dst_sin.sin_len = sizeof(dst_sin); 440 dst_sin.sin_family = AF_INET; 441 dst_sin.sin_port = 0; 442 dst_sin.sin_addr.s_addr = htonl(dst_ip); 443 444 err = irdma_get_dst_mac(cm_node, (struct sockaddr *)&dst_sin, dst_mac); 445 if (err) 446 return arpindex; 447 448 ip[0] = dst_ip; 449 450 return irdma_add_arp(iwdev->rf, ip, dst_mac); 451 } 452 453 /** 454 * irdma_addr_resolve_neigh_ipv6 - resolve neighbor ipv6 address 455 * @cm_node: connection's node 456 * @dest: remote ip address 457 * @arpindex: if there is an arp entry 458 */ 459 int 460 irdma_addr_resolve_neigh_ipv6(struct irdma_cm_node *cm_node, 461 u32 *dest, int arpindex) 462 { 463 struct irdma_device *iwdev = cm_node->iwdev; 464 struct sockaddr_in6 dst_addr = {}; 465 int err; 466 u8 dst_mac[MAX_ADDR_LEN]; 467 468 dst_addr.sin6_family = AF_INET6; 469 dst_addr.sin6_len = sizeof(dst_addr); 470 dst_addr.sin6_scope_id = iwdev->netdev->if_index; 471 472 irdma_copy_ip_htonl(dst_addr.sin6_addr.__u6_addr.__u6_addr32, dest); 473 err = irdma_get_dst_mac(cm_node, (struct sockaddr *)&dst_addr, dst_mac); 474 if (err) 475 return arpindex; 476 477 return irdma_add_arp(iwdev->rf, dest, dst_mac); 478 } 479 480 int 481 irdma_resolve_neigh_lpb_chk(struct irdma_device *iwdev, struct irdma_cm_node *cm_node, 482 struct irdma_cm_info *cm_info) 483 { 484 #ifdef VIMAGE 485 struct rdma_cm_id *rdma_id = (struct rdma_cm_id *)cm_node->cm_id->context; 486 struct vnet *vnet = rdma_id->route.addr.dev_addr.net; 487 #endif 488 int arpindex; 489 int oldarpindex; 490 bool is_lpb = false; 491 492 CURVNET_SET_QUIET(vnet); 493 is_lpb = cm_node->ipv4 ? 494 irdma_ipv4_is_lpb(cm_node->loc_addr[0], cm_node->rem_addr[0]) : 495 irdma_ipv6_is_lpb(cm_node->loc_addr, cm_node->rem_addr); 496 CURVNET_RESTORE(); 497 if (is_lpb) { 498 cm_node->do_lpb = true; 499 arpindex = irdma_arp_table(iwdev->rf, cm_node->rem_addr, 500 NULL, 501 IRDMA_ARP_RESOLVE); 502 } else { 503 oldarpindex = irdma_arp_table(iwdev->rf, cm_node->rem_addr, 504 NULL, 505 IRDMA_ARP_RESOLVE); 506 if (cm_node->ipv4) 507 arpindex = irdma_addr_resolve_neigh(cm_node, 508 cm_info->rem_addr[0], 509 oldarpindex); 510 else 511 arpindex = irdma_addr_resolve_neigh_ipv6(cm_node, 512 cm_info->rem_addr, 513 oldarpindex); 514 } 515 return arpindex; 516 } 517 518 /** 519 * irdma_add_handler - add a handler to the list 520 * @hdl: handler to be added to the handler list 521 */ 522 void 523 irdma_add_handler(struct irdma_handler *hdl) 524 { 525 unsigned long flags; 526 527 spin_lock_irqsave(&irdma_handler_lock, flags); 528 list_add(&hdl->list, &irdma_handlers); 529 spin_unlock_irqrestore(&irdma_handler_lock, flags); 530 } 531 532 /** 533 * irdma_del_handler - delete a handler from the list 534 * @hdl: handler to be deleted from the handler list 535 */ 536 void 537 irdma_del_handler(struct irdma_handler *hdl) 538 { 539 unsigned long flags; 540 541 spin_lock_irqsave(&irdma_handler_lock, flags); 542 list_del(&hdl->list); 543 spin_unlock_irqrestore(&irdma_handler_lock, flags); 544 } 545 546 /** 547 * irdma_set_rf_user_cfg_params - apply user configurable settings 548 * @rf: RDMA PCI function 549 */ 550 void 551 irdma_set_rf_user_cfg_params(struct irdma_pci_f *rf) 552 { 553 int en_rem_endpoint_trk = 0; 554 int limits_sel = 4; 555 556 rf->en_rem_endpoint_trk = en_rem_endpoint_trk; 557 rf->limits_sel = limits_sel; 558 rf->rst_to = IRDMA_RST_TIMEOUT_HZ; 559 /* Enable DCQCN algorithm by default */ 560 rf->dcqcn_ena = true; 561 } 562 563 /** 564 * irdma_sysctl_dcqcn_update - handle dcqcn_ena sysctl update 565 * @arg1: pointer to rf 566 * @arg2: unused 567 * @oidp: sysctl oid structure 568 * @req: sysctl request pointer 569 */ 570 static int 571 irdma_sysctl_dcqcn_update(SYSCTL_HANDLER_ARGS) 572 { 573 struct irdma_pci_f *rf = (struct irdma_pci_f *)arg1; 574 int ret; 575 u8 dcqcn_ena = rf->dcqcn_ena; 576 577 ret = sysctl_handle_8(oidp, &dcqcn_ena, 0, req); 578 if ((ret) || (req->newptr == NULL)) 579 return ret; 580 if (dcqcn_ena == 0) 581 rf->dcqcn_ena = false; 582 else 583 rf->dcqcn_ena = true; 584 585 return 0; 586 } 587 588 /** 589 * irdma_dcqcn_tunables_init - create tunables for dcqcn settings 590 * @rf: RDMA PCI function 591 * 592 * Create DCQCN related sysctls for the driver. 593 * dcqcn_ena is writeable settings and applicable to next QP creation or 594 * context setting. 595 * all other settings are of RDTUN type (read on driver load) and are 596 * applicable only to CQP creation. 597 */ 598 void 599 irdma_dcqcn_tunables_init(struct irdma_pci_f *rf) 600 { 601 struct sysctl_oid_list *irdma_sysctl_oid_list; 602 603 irdma_sysctl_oid_list = SYSCTL_CHILDREN(rf->tun_info.irdma_sysctl_tree); 604 605 SYSCTL_ADD_PROC(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 606 OID_AUTO, "dcqcn_enable", CTLFLAG_RW | CTLTYPE_U8, rf, 0, 607 irdma_sysctl_dcqcn_update, "A", 608 "enables DCQCN algorithm for RoCEv2 on all ports, default=true"); 609 610 SYSCTL_ADD_U8(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 611 OID_AUTO, "dcqcn_cc_cfg_valid", CTLFLAG_RDTUN, 612 &rf->dcqcn_params.cc_cfg_valid, 0, 613 "set DCQCN parameters to be valid, default=false"); 614 615 rf->dcqcn_params.min_dec_factor = 1; 616 SYSCTL_ADD_U8(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 617 OID_AUTO, "dcqcn_min_dec_factor", CTLFLAG_RDTUN, 618 &rf->dcqcn_params.min_dec_factor, 0, 619 "set minimum percentage factor by which tx rate can be changed for CNP, Range: 1-100, default=1"); 620 621 SYSCTL_ADD_U8(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 622 OID_AUTO, "dcqcn_min_rate_MBps", CTLFLAG_RDTUN, 623 &rf->dcqcn_params.min_rate, 0, 624 "set minimum rate limit value, in MBits per second, default=0"); 625 626 rf->dcqcn_params.dcqcn_f = 5; 627 SYSCTL_ADD_U8(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 628 OID_AUTO, "dcqcn_F", CTLFLAG_RDTUN, &rf->dcqcn_params.dcqcn_f, 0, 629 "set number of times to stay in each stage of bandwidth recovery, default=5"); 630 631 rf->dcqcn_params.dcqcn_t = 0x37; 632 SYSCTL_ADD_U16(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 633 OID_AUTO, "dcqcn_T", CTLFLAG_RDTUN, &rf->dcqcn_params.dcqcn_t, 0, 634 "set number of usecs that should elapse before increasing the CWND in DCQCN mode, default=0x37"); 635 636 rf->dcqcn_params.dcqcn_b = 0x249f0; 637 SYSCTL_ADD_U32(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 638 OID_AUTO, "dcqcn_B", CTLFLAG_RDTUN, &rf->dcqcn_params.dcqcn_b, 0, 639 "set number of MSS to add to the congestion window in additive increase mode, default=0x249f0"); 640 641 rf->dcqcn_params.rai_factor = 1; 642 SYSCTL_ADD_U16(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 643 OID_AUTO, "dcqcn_rai_factor", CTLFLAG_RDTUN, 644 &rf->dcqcn_params.rai_factor, 0, 645 "set number of MSS to add to the congestion window in additive increase mode, default=1"); 646 647 rf->dcqcn_params.hai_factor = 5; 648 SYSCTL_ADD_U16(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 649 OID_AUTO, "dcqcn_hai_factor", CTLFLAG_RDTUN, 650 &rf->dcqcn_params.hai_factor, 0, 651 "set number of MSS to add to the congestion window in hyperactive increase mode, default=5"); 652 653 rf->dcqcn_params.rreduce_mperiod = 50; 654 SYSCTL_ADD_U32(&rf->tun_info.irdma_sysctl_ctx, irdma_sysctl_oid_list, 655 OID_AUTO, "dcqcn_rreduce_mperiod", CTLFLAG_RDTUN, 656 &rf->dcqcn_params.rreduce_mperiod, 0, 657 "set minimum time between 2 consecutive rate reductions for a single flow, default=50"); 658 } 659 660 /** 661 * irdma_dmamap_cb - callback for bus_dmamap_load 662 */ 663 static void 664 irdma_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error) 665 { 666 if (error) 667 return; 668 *(bus_addr_t *) arg = segs->ds_addr; 669 return; 670 } 671 672 /** 673 * irdma_allocate_dma_mem - allocate dma memory 674 * @hw: pointer to hw structure 675 * @mem: structure holding memory information 676 * @size: requested size 677 * @alignment: requested alignment 678 */ 679 void * 680 irdma_allocate_dma_mem(struct irdma_hw *hw, struct irdma_dma_mem *mem, 681 u64 size, u32 alignment) 682 { 683 struct irdma_dev_ctx *dev_ctx = (struct irdma_dev_ctx *)hw->dev_context; 684 device_t dev = dev_ctx->dev; 685 void *va; 686 int ret; 687 688 ret = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 689 alignment, 0, /* alignment, bounds */ 690 BUS_SPACE_MAXADDR, /* lowaddr */ 691 BUS_SPACE_MAXADDR, /* highaddr */ 692 NULL, NULL, /* filter, filterarg */ 693 size, /* maxsize */ 694 1, /* nsegments */ 695 size, /* maxsegsize */ 696 BUS_DMA_ALLOCNOW, /* flags */ 697 NULL, /* lockfunc */ 698 NULL, /* lockfuncarg */ 699 &mem->tag); 700 if (ret != 0) { 701 device_printf(dev, "%s: bus_dma_tag_create failed, error %u\n", 702 __func__, ret); 703 goto fail_0; 704 } 705 ret = bus_dmamem_alloc(mem->tag, (void **)&va, 706 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &mem->map); 707 if (ret != 0) { 708 device_printf(dev, "%s: bus_dmamem_alloc failed, error %u\n", 709 __func__, ret); 710 goto fail_1; 711 } 712 ret = bus_dmamap_load(mem->tag, mem->map, va, size, 713 irdma_dmamap_cb, &mem->pa, BUS_DMA_NOWAIT); 714 if (ret != 0) { 715 device_printf(dev, "%s: bus_dmamap_load failed, error %u\n", 716 __func__, ret); 717 goto fail_2; 718 } 719 mem->nseg = 1; 720 mem->size = size; 721 bus_dmamap_sync(mem->tag, mem->map, 722 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 723 724 return va; 725 fail_2: 726 bus_dmamem_free(mem->tag, va, mem->map); 727 fail_1: 728 bus_dma_tag_destroy(mem->tag); 729 fail_0: 730 mem->map = NULL; 731 mem->tag = NULL; 732 733 return NULL; 734 } 735 736 /** 737 * irdma_free_dma_mem - Memory free helper fn 738 * @hw: pointer to hw structure 739 * @mem: ptr to mem struct to free 740 */ 741 int 742 irdma_free_dma_mem(struct irdma_hw *hw, struct irdma_dma_mem *mem) 743 { 744 if (!mem) 745 return -EINVAL; 746 bus_dmamap_sync(mem->tag, mem->map, 747 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 748 bus_dmamap_unload(mem->tag, mem->map); 749 if (!mem->va) 750 return -ENOMEM; 751 bus_dmamem_free(mem->tag, mem->va, mem->map); 752 bus_dma_tag_destroy(mem->tag); 753 754 mem->va = NULL; 755 756 return 0; 757 } 758 759 inline void 760 irdma_prm_rem_bitmapmem(struct irdma_hw *hw, struct irdma_chunk *chunk) 761 { 762 kfree(chunk->bitmapmem.va); 763 } 764 765 void 766 irdma_cleanup_dead_qps(struct irdma_sc_vsi *vsi) 767 { 768 struct irdma_sc_qp *qp = NULL; 769 struct irdma_qp *iwqp; 770 struct irdma_pci_f *rf; 771 u8 i; 772 773 for (i = 0; i < IRDMA_MAX_USER_PRIORITY; i++) { 774 qp = irdma_get_qp_from_list(&vsi->qos[i].qplist, qp); 775 while (qp) { 776 if (qp->qp_uk.qp_type == IRDMA_QP_TYPE_UDA) { 777 qp = irdma_get_qp_from_list(&vsi->qos[i].qplist, qp); 778 continue; 779 } 780 iwqp = qp->qp_uk.back_qp; 781 rf = iwqp->iwdev->rf; 782 irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->q2_ctx_mem); 783 irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->kqp.dma_mem); 784 785 kfree(iwqp->kqp.sq_wrid_mem); 786 kfree(iwqp->kqp.rq_wrid_mem); 787 qp = irdma_get_qp_from_list(&vsi->qos[i].qplist, qp); 788 kfree(iwqp); 789 } 790 } 791 } 792