drivers/infiniband/hw/irdma/utils.c

   1 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
   2 /* Copyright (c) 2015 - 2021 Intel Corporation */
   3 #include "main.h"
   4
   5 /**
   6  * irdma_arp_table -manage arp table
   7  * @rf: RDMA PCI function
   8  * @ip_addr: ip address for device
   9  * @ipv4: IPv4 flag
  10  * @mac_addr: mac address ptr
  11  * @action: modify, delete or add
  12  */
  13 int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
  14                     const u8 *mac_addr, u32 action)
  15 {
  16         unsigned long flags;
  17         int arp_index;
  18         u32 ip[4] = {};
  19
  20         if (ipv4)
  21                 ip[0] = *ip_addr;
  22         else
  23                 memcpy(ip, ip_addr, sizeof(ip));
  24
  25         spin_lock_irqsave(&rf->arp_lock, flags);
  26         for (arp_index = 0; (u32)arp_index < rf->arp_table_size; arp_index++) {
  27                 if (!memcmp(rf->arp_table[arp_index].ip_addr, ip, sizeof(ip)))
  28                         break;
  29         }
  30
  31         switch (action) {
  32         case IRDMA_ARP_ADD:
  33                 if (arp_index != rf->arp_table_size) {
  34                         arp_index = -1;
  35                         break;
  36                 }
  37
  38                 arp_index = 0;
  39                 if (irdma_alloc_rsrc(rf, rf->allocated_arps, rf->arp_table_size,
  40                                      (u32 *)&arp_index, &rf->next_arp_index)) {
  41                         arp_index = -1;
  42                         break;
  43                 }
  44
  45                 memcpy(rf->arp_table[arp_index].ip_addr, ip,
  46                        sizeof(rf->arp_table[arp_index].ip_addr));
  47                 ether_addr_copy(rf->arp_table[arp_index].mac_addr, mac_addr);
  48                 break;
  49         case IRDMA_ARP_RESOLVE:
  50                 if (arp_index == rf->arp_table_size)
  51                         arp_index = -1;
  52                 break;
  53         case IRDMA_ARP_DELETE:
  54                 if (arp_index == rf->arp_table_size) {
  55                         arp_index = -1;
  56                         break;
  57                 }
  58
  59                 memset(rf->arp_table[arp_index].ip_addr, 0,
  60                        sizeof(rf->arp_table[arp_index].ip_addr));
  61                 eth_zero_addr(rf->arp_table[arp_index].mac_addr);
  62                 irdma_free_rsrc(rf, rf->allocated_arps, arp_index);
  63                 break;
  64         default:
  65                 arp_index = -1;
  66                 break;
  67         }
  68
  69         spin_unlock_irqrestore(&rf->arp_lock, flags);
  70         return arp_index;
  71 }
  72
  73 /**
  74  * irdma_add_arp - add a new arp entry if needed
  75  * @rf: RDMA function
  76  * @ip: IP address
  77  * @ipv4: IPv4 flag
  78  * @mac: MAC address
  79  */
  80 int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac)
  81 {
  82         int arpidx;
  83
  84         arpidx = irdma_arp_table(rf, &ip[0], ipv4, NULL, IRDMA_ARP_RESOLVE);
  85         if (arpidx >= 0) {
  86                 if (ether_addr_equal(rf->arp_table[arpidx].mac_addr, mac))
  87                         return arpidx;
  88
  89                 irdma_manage_arp_cache(rf, rf->arp_table[arpidx].mac_addr, ip,
  90                                        ipv4, IRDMA_ARP_DELETE);
  91         }
  92
  93         irdma_manage_arp_cache(rf, mac, ip, ipv4, IRDMA_ARP_ADD);
  94
  95         return irdma_arp_table(rf, ip, ipv4, NULL, IRDMA_ARP_RESOLVE);
  96 }
  97
  98 /**
  99  * wr32 - write 32 bits to hw register
 100  * @hw: hardware information including registers
 101  * @reg: register offset
 102  * @val: value to write to register
 103  */
 104 inline void wr32(struct irdma_hw *hw, u32 reg, u32 val)
 105 {
 106         writel(val, hw->hw_addr + reg);
 107 }
 108
 109 /**
 110  * rd32 - read a 32 bit hw register
 111  * @hw: hardware information including registers
 112  * @reg: register offset
 113  *
 114  * Return value of register content
 115  */
 116 inline u32 rd32(struct irdma_hw *hw, u32 reg)
 117 {
 118         return readl(hw->hw_addr + reg);
 119 }
 120
 121 /**
 122  * rd64 - read a 64 bit hw register
 123  * @hw: hardware information including registers
 124  * @reg: register offset
 125  *
 126  * Return value of register content
 127  */
 128 inline u64 rd64(struct irdma_hw *hw, u32 reg)
 129 {
 130         return readq(hw->hw_addr + reg);
 131 }
 132
 133 static void irdma_gid_change_event(struct ib_device *ibdev)
 134 {
 135         struct ib_event ib_event;
 136
 137         ib_event.event = IB_EVENT_GID_CHANGE;
 138         ib_event.device = ibdev;
 139         ib_event.element.port_num = 1;
 140         ib_dispatch_event(&ib_event);
 141 }
 142
 143 /**
 144  * irdma_inetaddr_event - system notifier for ipv4 addr events
 145  * @notifier: not used
 146  * @event: event for notifier
 147  * @ptr: if address
 148  */
 149 int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
 150                          void *ptr)
 151 {
 152         struct in_ifaddr *ifa = ptr;
 153         struct net_device *real_dev, *netdev = ifa->ifa_dev->dev;
 154         struct irdma_device *iwdev;
 155         struct ib_device *ibdev;
 156         u32 local_ipaddr;
 157
 158         real_dev = rdma_vlan_dev_real_dev(netdev);
 159         if (!real_dev)
 160                 real_dev = netdev;
 161
 162         ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
 163         if (!ibdev)
 164                 return NOTIFY_DONE;
 165
 166         iwdev = to_iwdev(ibdev);
 167         local_ipaddr = ntohl(ifa->ifa_address);
 168         ibdev_dbg(&iwdev->ibdev,
 169                   "DEV: netdev %p event %lu local_ip=%pI4 MAC=%pM\n", real_dev,
 170                   event, &local_ipaddr, real_dev->dev_addr);
 171         switch (event) {
 172         case NETDEV_DOWN:
 173                 irdma_manage_arp_cache(iwdev->rf, real_dev->dev_addr,
 174                                        &local_ipaddr, true, IRDMA_ARP_DELETE);
 175                 irdma_if_notify(iwdev, real_dev, &local_ipaddr, true, false);
 176                 irdma_gid_change_event(&iwdev->ibdev);
 177                 break;
 178         case NETDEV_UP:
 179         case NETDEV_CHANGEADDR:
 180                 irdma_add_arp(iwdev->rf, &local_ipaddr, true, real_dev->dev_addr);
 181                 irdma_if_notify(iwdev, real_dev, &local_ipaddr, true, true);
 182                 irdma_gid_change_event(&iwdev->ibdev);
 183                 break;
 184         default:
 185                 break;
 186         }
 187
 188         ib_device_put(ibdev);
 189
 190         return NOTIFY_DONE;
 191 }
 192
 193 /**
 194  * irdma_inet6addr_event - system notifier for ipv6 addr events
 195  * @notifier: not used
 196  * @event: event for notifier
 197  * @ptr: if address
 198  */
 199 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
 200                           void *ptr)
 201 {
 202         struct inet6_ifaddr *ifa = ptr;
 203         struct net_device *real_dev, *netdev = ifa->idev->dev;
 204         struct irdma_device *iwdev;
 205         struct ib_device *ibdev;
 206         u32 local_ipaddr6[4];
 207
 208         real_dev = rdma_vlan_dev_real_dev(netdev);
 209         if (!real_dev)
 210                 real_dev = netdev;
 211
 212         ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
 213         if (!ibdev)
 214                 return NOTIFY_DONE;
 215
 216         iwdev = to_iwdev(ibdev);
 217         irdma_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
 218         ibdev_dbg(&iwdev->ibdev,
 219                   "DEV: netdev %p event %lu local_ip=%pI6 MAC=%pM\n", real_dev,
 220                   event, local_ipaddr6, real_dev->dev_addr);
 221         switch (event) {
 222         case NETDEV_DOWN:
 223                 irdma_manage_arp_cache(iwdev->rf, real_dev->dev_addr,
 224                                        local_ipaddr6, false, IRDMA_ARP_DELETE);
 225                 irdma_if_notify(iwdev, real_dev, local_ipaddr6, false, false);
 226                 irdma_gid_change_event(&iwdev->ibdev);
 227                 break;
 228         case NETDEV_UP:
 229         case NETDEV_CHANGEADDR:
 230                 irdma_add_arp(iwdev->rf, local_ipaddr6, false,
 231                               real_dev->dev_addr);
 232                 irdma_if_notify(iwdev, real_dev, local_ipaddr6, false, true);
 233                 irdma_gid_change_event(&iwdev->ibdev);
 234                 break;
 235         default:
 236                 break;
 237         }
 238
 239         ib_device_put(ibdev);
 240
 241         return NOTIFY_DONE;
 242 }
 243
 244 /**
 245  * irdma_net_event - system notifier for net events
 246  * @notifier: not used
 247  * @event: event for notifier
 248  * @ptr: neighbor
 249  */
 250 int irdma_net_event(struct notifier_block *notifier, unsigned long event,
 251                     void *ptr)
 252 {
 253         struct neighbour *neigh = ptr;
 254         struct net_device *real_dev, *netdev = (struct net_device *)neigh->dev;
 255         struct irdma_device *iwdev;
 256         struct ib_device *ibdev;
 257         __be32 *p;
 258         u32 local_ipaddr[4] = {};
 259         bool ipv4 = true;
 260
 261         switch (event) {
 262         case NETEVENT_NEIGH_UPDATE:
 263                 real_dev = rdma_vlan_dev_real_dev(netdev);
 264                 if (!real_dev)
 265                         real_dev = netdev;
 266                 ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
 267                 if (!ibdev)
 268                         return NOTIFY_DONE;
 269
 270                 iwdev = to_iwdev(ibdev);
 271                 p = (__be32 *)neigh->primary_key;
 272                 if (neigh->tbl->family == AF_INET6) {
 273                         ipv4 = false;
 274                         irdma_copy_ip_ntohl(local_ipaddr, p);
 275                 } else {
 276                         local_ipaddr[0] = ntohl(*p);
 277                 }
 278
 279                 ibdev_dbg(&iwdev->ibdev,
 280                           "DEV: netdev %p state %d local_ip=%pI4 MAC=%pM\n",
 281                           iwdev->netdev, neigh->nud_state, local_ipaddr,
 282                           neigh->ha);
 283
 284                 if (neigh->nud_state & NUD_VALID)
 285                         irdma_add_arp(iwdev->rf, local_ipaddr, ipv4, neigh->ha);
 286
 287                 else
 288                         irdma_manage_arp_cache(iwdev->rf, neigh->ha,
 289                                                local_ipaddr, ipv4,
 290                                                IRDMA_ARP_DELETE);
 291                 ib_device_put(ibdev);
 292                 break;
 293         default:
 294                 break;
 295         }
 296
 297         return NOTIFY_DONE;
 298 }
 299
 300 /**
 301  * irdma_netdevice_event - system notifier for netdev events
 302  * @notifier: not used
 303  * @event: event for notifier
 304  * @ptr: netdev
 305  */
 306 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
 307                           void *ptr)
 308 {
 309         struct irdma_device *iwdev;
 310         struct ib_device *ibdev;
 311         struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 312
 313         ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
 314         if (!ibdev)
 315                 return NOTIFY_DONE;
 316
 317         iwdev = to_iwdev(ibdev);
 318         iwdev->iw_status = 1;
 319         switch (event) {
 320         case NETDEV_DOWN:
 321                 iwdev->iw_status = 0;
 322                 fallthrough;
 323         case NETDEV_UP:
 324                 irdma_port_ibevent(iwdev);
 325                 break;
 326         default:
 327                 break;
 328         }
 329         ib_device_put(ibdev);
 330
 331         return NOTIFY_DONE;
 332 }
 333
 334 /**
 335  * irdma_add_ipv6_addr - add ipv6 address to the hw arp table
 336  * @iwdev: irdma device
 337  */
 338 static void irdma_add_ipv6_addr(struct irdma_device *iwdev)
 339 {
 340         struct net_device *ip_dev;
 341         struct inet6_dev *idev;
 342         struct inet6_ifaddr *ifp, *tmp;
 343         u32 local_ipaddr6[4];
 344
 345         rcu_read_lock();
 346         for_each_netdev_rcu (&init_net, ip_dev) {
 347                 if (((rdma_vlan_dev_vlan_id(ip_dev) < 0xFFFF &&
 348                       rdma_vlan_dev_real_dev(ip_dev) == iwdev->netdev) ||
 349                       ip_dev == iwdev->netdev) &&
 350                       (READ_ONCE(ip_dev->flags) & IFF_UP)) {
 351                         idev = __in6_dev_get(ip_dev);
 352                         if (!idev) {
 353                                 ibdev_err(&iwdev->ibdev, "ipv6 inet device not found\n");
 354                                 break;
 355                         }
 356                         list_for_each_entry_safe (ifp, tmp, &idev->addr_list,
 357                                                   if_list) {
 358                                 ibdev_dbg(&iwdev->ibdev,
 359                                           "INIT: IP=%pI6, vlan_id=%d, MAC=%pM\n",
 360                                           &ifp->addr,
 361                                           rdma_vlan_dev_vlan_id(ip_dev),
 362                                           ip_dev->dev_addr);
 363
 364                                 irdma_copy_ip_ntohl(local_ipaddr6,
 365                                                     ifp->addr.in6_u.u6_addr32);
 366                                 irdma_manage_arp_cache(iwdev->rf,
 367                                                        ip_dev->dev_addr,
 368                                                        local_ipaddr6, false,
 369                                                        IRDMA_ARP_ADD);
 370                         }
 371                 }
 372         }
 373         rcu_read_unlock();
 374 }
 375
 376 /**
 377  * irdma_add_ipv4_addr - add ipv4 address to the hw arp table
 378  * @iwdev: irdma device
 379  */
 380 static void irdma_add_ipv4_addr(struct irdma_device *iwdev)
 381 {
 382         struct net_device *dev;
 383         struct in_device *idev;
 384         u32 ip_addr;
 385
 386         rcu_read_lock();
 387         for_each_netdev_rcu (&init_net, dev) {
 388                 if (((rdma_vlan_dev_vlan_id(dev) < 0xFFFF &&
 389                       rdma_vlan_dev_real_dev(dev) == iwdev->netdev) ||
 390                       dev == iwdev->netdev) && (READ_ONCE(dev->flags) & IFF_UP)) {
 391                         const struct in_ifaddr *ifa;
 392
 393                         idev = __in_dev_get_rcu(dev);
 394                         if (!idev)
 395                                 continue;
 396
 397                         in_dev_for_each_ifa_rcu(ifa, idev) {
 398                                 ibdev_dbg(&iwdev->ibdev, "CM: IP=%pI4, vlan_id=%d, MAC=%pM\n",
 399                                           &ifa->ifa_address, rdma_vlan_dev_vlan_id(dev),
 400                                           dev->dev_addr);
 401
 402                                 ip_addr = ntohl(ifa->ifa_address);
 403                                 irdma_manage_arp_cache(iwdev->rf, dev->dev_addr,
 404                                                        &ip_addr, true,
 405                                                        IRDMA_ARP_ADD);
 406                         }
 407                 }
 408         }
 409         rcu_read_unlock();
 410 }
 411
 412 /**
 413  * irdma_add_ip - add ip addresses
 414  * @iwdev: irdma device
 415  *
 416  * Add ipv4/ipv6 addresses to the arp cache
 417  */
 418 void irdma_add_ip(struct irdma_device *iwdev)
 419 {
 420         irdma_add_ipv4_addr(iwdev);
 421         irdma_add_ipv6_addr(iwdev);
 422 }
 423
 424 /**
 425  * irdma_alloc_and_get_cqp_request - get cqp struct
 426  * @cqp: device cqp ptr
 427  * @wait: cqp to be used in wait mode
 428  */
 429 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
 430                                                           bool wait)
 431 {
 432         struct irdma_cqp_request *cqp_request = NULL;
 433         unsigned long flags;
 434
 435         spin_lock_irqsave(&cqp->req_lock, flags);
 436         if (!list_empty(&cqp->cqp_avail_reqs)) {
 437                 cqp_request = list_first_entry(&cqp->cqp_avail_reqs,
 438                                                struct irdma_cqp_request, list);
 439                 list_del_init(&cqp_request->list);
 440         }
 441         spin_unlock_irqrestore(&cqp->req_lock, flags);
 442         if (!cqp_request) {
 443                 cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC);
 444                 if (cqp_request) {
 445                         cqp_request->dynamic = true;
 446                         if (wait)
 447                                 init_waitqueue_head(&cqp_request->waitq);
 448                 }
 449         }
 450         if (!cqp_request) {
 451                 ibdev_dbg(to_ibdev(cqp->sc_cqp.dev), "ERR: CQP Request Fail: No Memory");
 452                 return NULL;
 453         }
 454
 455         cqp_request->waiting = wait;
 456         refcount_set(&cqp_request->refcnt, 1);
 457         memset(&cqp_request->compl_info, 0, sizeof(cqp_request->compl_info));
 458
 459         return cqp_request;
 460 }
 461
 462 /**
 463  * irdma_get_cqp_request - increase refcount for cqp_request
 464  * @cqp_request: pointer to cqp_request instance
 465  */
 466 static inline void irdma_get_cqp_request(struct irdma_cqp_request *cqp_request)
 467 {
 468         refcount_inc(&cqp_request->refcnt);
 469 }
 470
 471 /**
 472  * irdma_free_cqp_request - free cqp request
 473  * @cqp: cqp ptr
 474  * @cqp_request: to be put back in cqp list
 475  */
 476 void irdma_free_cqp_request(struct irdma_cqp *cqp,
 477                             struct irdma_cqp_request *cqp_request)
 478 {
 479         unsigned long flags;
 480
 481         if (cqp_request->dynamic) {
 482                 kfree(cqp_request);
 483         } else {
 484                 WRITE_ONCE(cqp_request->request_done, false);
 485                 cqp_request->callback_fcn = NULL;
 486                 cqp_request->waiting = false;
 487
 488                 spin_lock_irqsave(&cqp->req_lock, flags);
 489                 list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs);
 490                 spin_unlock_irqrestore(&cqp->req_lock, flags);
 491         }
 492         wake_up(&cqp->remove_wq);
 493 }
 494
 495 /**
 496  * irdma_put_cqp_request - dec ref count and free if 0
 497  * @cqp: cqp ptr
 498  * @cqp_request: to be put back in cqp list
 499  */
 500 void irdma_put_cqp_request(struct irdma_cqp *cqp,
 501                            struct irdma_cqp_request *cqp_request)
 502 {
 503         if (refcount_dec_and_test(&cqp_request->refcnt))
 504                 irdma_free_cqp_request(cqp, cqp_request);
 505 }
 506
 507 /**
 508  * irdma_free_pending_cqp_request -free pending cqp request objs
 509  * @cqp: cqp ptr
 510  * @cqp_request: to be put back in cqp list
 511  */
 512 static void
 513 irdma_free_pending_cqp_request(struct irdma_cqp *cqp,
 514                                struct irdma_cqp_request *cqp_request)
 515 {
 516         if (cqp_request->waiting) {
 517                 cqp_request->compl_info.error = true;
 518                 WRITE_ONCE(cqp_request->request_done, true);
 519                 wake_up(&cqp_request->waitq);
 520         }
 521         wait_event_timeout(cqp->remove_wq,
 522                            refcount_read(&cqp_request->refcnt) == 1, 1000);
 523         irdma_put_cqp_request(cqp, cqp_request);
 524 }
 525
 526 /**
 527  * irdma_cleanup_pending_cqp_op - clean-up cqp with no
 528  * completions
 529  * @rf: RDMA PCI function
 530  */
 531 void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf)
 532 {
 533         struct irdma_sc_dev *dev = &rf->sc_dev;
 534         struct irdma_cqp *cqp = &rf->cqp;
 535         struct irdma_cqp_request *cqp_request = NULL;
 536         struct cqp_cmds_info *pcmdinfo = NULL;
 537         u32 i, pending_work, wqe_idx;
 538
 539         pending_work = IRDMA_RING_USED_QUANTA(cqp->sc_cqp.sq_ring);
 540         wqe_idx = IRDMA_RING_CURRENT_TAIL(cqp->sc_cqp.sq_ring);
 541         for (i = 0; i < pending_work; i++) {
 542                 cqp_request = (struct irdma_cqp_request *)(unsigned long)
 543                                       cqp->scratch_array[wqe_idx];
 544                 if (cqp_request)
 545                         irdma_free_pending_cqp_request(cqp, cqp_request);
 546                 wqe_idx = (wqe_idx + 1) % IRDMA_RING_SIZE(cqp->sc_cqp.sq_ring);
 547         }
 548
 549         while (!list_empty(&dev->cqp_cmd_head)) {
 550                 pcmdinfo = irdma_remove_cqp_head(dev);
 551                 cqp_request =
 552                         container_of(pcmdinfo, struct irdma_cqp_request, info);
 553                 if (cqp_request)
 554                         irdma_free_pending_cqp_request(cqp, cqp_request);
 555         }
 556 }
 557
 558 /**
 559  * irdma_wait_event - wait for completion
 560  * @rf: RDMA PCI function
 561  * @cqp_request: cqp request to wait
 562  */
 563 static int irdma_wait_event(struct irdma_pci_f *rf,
 564                             struct irdma_cqp_request *cqp_request)
 565 {
 566         struct irdma_cqp_timeout cqp_timeout = {};
 567         bool cqp_error = false;
 568         int err_code = 0;
 569
 570         cqp_timeout.compl_cqp_cmds = atomic64_read(&rf->sc_dev.cqp->completed_ops);
 571         do {
 572                 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
 573                 if (wait_event_timeout(cqp_request->waitq,
 574                                        READ_ONCE(cqp_request->request_done),
 575                                        msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS)))
 576                         break;
 577
 578                 irdma_check_cqp_progress(&cqp_timeout, &rf->sc_dev);
 579
 580                 if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD)
 581                         continue;
 582
 583                 if (!rf->reset) {
 584                         rf->reset = true;
 585                         rf->gen_ops.request_reset(rf);
 586                 }
 587                 return -ETIMEDOUT;
 588         } while (1);
 589
 590         cqp_error = cqp_request->compl_info.error;
 591         if (cqp_error) {
 592                 err_code = -EIO;
 593                 if (cqp_request->compl_info.maj_err_code == 0xFFFF) {
 594                         if (cqp_request->compl_info.min_err_code == 0x8002)
 595                                 err_code = -EBUSY;
 596                         else if (cqp_request->compl_info.min_err_code == 0x8029) {
 597                                 if (!rf->reset) {
 598                                         rf->reset = true;
 599                                         rf->gen_ops.request_reset(rf);
 600                                 }
 601                         }
 602                 }
 603         }
 604
 605         return err_code;
 606 }
 607
 608 static const char *const irdma_cqp_cmd_names[IRDMA_MAX_CQP_OPS] = {
 609         [IRDMA_OP_CEQ_DESTROY] = "Destroy CEQ Cmd",
 610         [IRDMA_OP_AEQ_DESTROY] = "Destroy AEQ Cmd",
 611         [IRDMA_OP_DELETE_ARP_CACHE_ENTRY] = "Delete ARP Cache Cmd",
 612         [IRDMA_OP_MANAGE_APBVT_ENTRY] = "Manage APBV Table Entry Cmd",
 613         [IRDMA_OP_CEQ_CREATE] = "CEQ Create Cmd",
 614         [IRDMA_OP_AEQ_CREATE] = "AEQ Destroy Cmd",
 615         [IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY] = "Manage Quad Hash Table Entry Cmd",
 616         [IRDMA_OP_QP_MODIFY] = "Modify QP Cmd",
 617         [IRDMA_OP_QP_UPLOAD_CONTEXT] = "Upload Context Cmd",
 618         [IRDMA_OP_CQ_CREATE] = "Create CQ Cmd",
 619         [IRDMA_OP_CQ_DESTROY] = "Destroy CQ Cmd",
 620         [IRDMA_OP_QP_CREATE] = "Create QP Cmd",
 621         [IRDMA_OP_QP_DESTROY] = "Destroy QP Cmd",
 622         [IRDMA_OP_ALLOC_STAG] = "Allocate STag Cmd",
 623         [IRDMA_OP_MR_REG_NON_SHARED] = "Register Non-Shared MR Cmd",
 624         [IRDMA_OP_DEALLOC_STAG] = "Deallocate STag Cmd",
 625         [IRDMA_OP_MW_ALLOC] = "Allocate Memory Window Cmd",
 626         [IRDMA_OP_QP_FLUSH_WQES] = "Flush QP Cmd",
 627         [IRDMA_OP_ADD_ARP_CACHE_ENTRY] = "Add ARP Cache Cmd",
 628         [IRDMA_OP_MANAGE_PUSH_PAGE] = "Manage Push Page Cmd",
 629         [IRDMA_OP_UPDATE_PE_SDS] = "Update PE SDs Cmd",
 630         [IRDMA_OP_MANAGE_HMC_PM_FUNC_TABLE] = "Manage HMC PM Function Table Cmd",
 631         [IRDMA_OP_SUSPEND] = "Suspend QP Cmd",
 632         [IRDMA_OP_RESUME] = "Resume QP Cmd",
 633         [IRDMA_OP_MANAGE_VF_PBLE_BP] = "Manage VF PBLE Backing Pages Cmd",
 634         [IRDMA_OP_QUERY_FPM_VAL] = "Query FPM Values Cmd",
 635         [IRDMA_OP_COMMIT_FPM_VAL] = "Commit FPM Values Cmd",
 636         [IRDMA_OP_AH_CREATE] = "Create Address Handle Cmd",
 637         [IRDMA_OP_AH_MODIFY] = "Modify Address Handle Cmd",
 638         [IRDMA_OP_AH_DESTROY] = "Destroy Address Handle Cmd",
 639         [IRDMA_OP_MC_CREATE] = "Create Multicast Group Cmd",
 640         [IRDMA_OP_MC_DESTROY] = "Destroy Multicast Group Cmd",
 641         [IRDMA_OP_MC_MODIFY] = "Modify Multicast Group Cmd",
 642         [IRDMA_OP_STATS_ALLOCATE] = "Add Statistics Instance Cmd",
 643         [IRDMA_OP_STATS_FREE] = "Free Statistics Instance Cmd",
 644         [IRDMA_OP_STATS_GATHER] = "Gather Statistics Cmd",
 645         [IRDMA_OP_WS_ADD_NODE] = "Add Work Scheduler Node Cmd",
 646         [IRDMA_OP_WS_MODIFY_NODE] = "Modify Work Scheduler Node Cmd",
 647         [IRDMA_OP_WS_DELETE_NODE] = "Delete Work Scheduler Node Cmd",
 648         [IRDMA_OP_SET_UP_MAP] = "Set UP-UP Mapping Cmd",
 649         [IRDMA_OP_GEN_AE] = "Generate AE Cmd",
 650         [IRDMA_OP_QUERY_RDMA_FEATURES] = "RDMA Get Features Cmd",
 651         [IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY] = "Allocate Local MAC Entry Cmd",
 652         [IRDMA_OP_ADD_LOCAL_MAC_ENTRY] = "Add Local MAC Entry Cmd",
 653         [IRDMA_OP_DELETE_LOCAL_MAC_ENTRY] = "Delete Local MAC Entry Cmd",
 654         [IRDMA_OP_CQ_MODIFY] = "CQ Modify Cmd",
 655 };
 656
 657 static const struct irdma_cqp_err_info irdma_noncrit_err_list[] = {
 658         {0xffff, 0x8002, "Invalid State"},
 659         {0xffff, 0x8006, "Flush No Wqe Pending"},
 660         {0xffff, 0x8007, "Modify QP Bad Close"},
 661         {0xffff, 0x8009, "LLP Closed"},
 662         {0xffff, 0x800a, "Reset Not Sent"}
 663 };
 664
 665 /**
 666  * irdma_cqp_crit_err - check if CQP error is critical
 667  * @dev: pointer to dev structure
 668  * @cqp_cmd: code for last CQP operation
 669  * @maj_err_code: major error code
 670  * @min_err_code: minot error code
 671  */
 672 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
 673                         u16 maj_err_code, u16 min_err_code)
 674 {
 675         int i;
 676
 677         for (i = 0; i < ARRAY_SIZE(irdma_noncrit_err_list); ++i) {
 678                 if (maj_err_code == irdma_noncrit_err_list[i].maj &&
 679                     min_err_code == irdma_noncrit_err_list[i].min) {
 680                         ibdev_dbg(to_ibdev(dev),
 681                                   "CQP: [%s Error][%s] maj=0x%x min=0x%x\n",
 682                                   irdma_noncrit_err_list[i].desc,
 683                                   irdma_cqp_cmd_names[cqp_cmd], maj_err_code,
 684                                   min_err_code);
 685                         return false;
 686                 }
 687         }
 688         return true;
 689 }
 690
 691 /**
 692  * irdma_handle_cqp_op - process cqp command
 693  * @rf: RDMA PCI function
 694  * @cqp_request: cqp request to process
 695  */
 696 int irdma_handle_cqp_op(struct irdma_pci_f *rf,
 697                         struct irdma_cqp_request *cqp_request)
 698 {
 699         struct irdma_sc_dev *dev = &rf->sc_dev;
 700         struct cqp_cmds_info *info = &cqp_request->info;
 701         int status;
 702         bool put_cqp_request = true;
 703
 704         if (rf->reset)
 705                 return -EBUSY;
 706
 707         irdma_get_cqp_request(cqp_request);
 708         status = irdma_process_cqp_cmd(dev, info);
 709         if (status)
 710                 goto err;
 711
 712         if (cqp_request->waiting) {
 713                 put_cqp_request = false;
 714                 status = irdma_wait_event(rf, cqp_request);
 715                 if (status)
 716                         goto err;
 717         }
 718
 719         return 0;
 720
 721 err:
 722         if (irdma_cqp_crit_err(dev, info->cqp_cmd,
 723                                cqp_request->compl_info.maj_err_code,
 724                                cqp_request->compl_info.min_err_code))
 725                 ibdev_err(&rf->iwdev->ibdev,
 726                           "[%s Error][op_code=%d] status=%d waiting=%d completion_err=%d maj=0x%x min=0x%x\n",
 727                           irdma_cqp_cmd_names[info->cqp_cmd], info->cqp_cmd, status, cqp_request->waiting,
 728                           cqp_request->compl_info.error, cqp_request->compl_info.maj_err_code,
 729                           cqp_request->compl_info.min_err_code);
 730
 731         if (put_cqp_request)
 732                 irdma_put_cqp_request(&rf->cqp, cqp_request);
 733
 734         return status;
 735 }
 736
 737 void irdma_qp_add_ref(struct ib_qp *ibqp)
 738 {
 739         struct irdma_qp *iwqp = (struct irdma_qp *)ibqp;
 740
 741         refcount_inc(&iwqp->refcnt);
 742 }
 743
 744 void irdma_qp_rem_ref(struct ib_qp *ibqp)
 745 {
 746         struct irdma_qp *iwqp = to_iwqp(ibqp);
 747         struct irdma_device *iwdev = iwqp->iwdev;
 748         u32 qp_num;
 749         unsigned long flags;
 750
 751         spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
 752         if (!refcount_dec_and_test(&iwqp->refcnt)) {
 753                 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
 754                 return;
 755         }
 756
 757         qp_num = iwqp->ibqp.qp_num;
 758         iwdev->rf->qp_table[qp_num] = NULL;
 759         spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
 760         complete(&iwqp->free_qp);
 761 }
 762
 763 struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
 764 {
 765         return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;
 766 }
 767
 768 /**
 769  * irdma_get_qp - get qp address
 770  * @device: iwarp device
 771  * @qpn: qp number
 772  */
 773 struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn)
 774 {
 775         struct irdma_device *iwdev = to_iwdev(device);
 776
 777         if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp)
 778                 return NULL;
 779
 780         return &iwdev->rf->qp_table[qpn]->ibqp;
 781 }
 782
 783 /**
 784  * irdma_remove_cqp_head - return head entry and remove
 785  * @dev: device
 786  */
 787 void *irdma_remove_cqp_head(struct irdma_sc_dev *dev)
 788 {
 789         struct list_head *entry;
 790         struct list_head *list = &dev->cqp_cmd_head;
 791
 792         if (list_empty(list))
 793                 return NULL;
 794
 795         entry = list->next;
 796         list_del(entry);
 797
 798         return entry;
 799 }
 800
 801 /**
 802  * irdma_cqp_sds_cmd - create cqp command for sd
 803  * @dev: hardware control device structure
 804  * @sdinfo: information for sd cqp
 805  *
 806  */
 807 int irdma_cqp_sds_cmd(struct irdma_sc_dev *dev,
 808                       struct irdma_update_sds_info *sdinfo)
 809 {
 810         struct irdma_cqp_request *cqp_request;
 811         struct cqp_cmds_info *cqp_info;
 812         struct irdma_pci_f *rf = dev_to_rf(dev);
 813         int status;
 814
 815         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 816         if (!cqp_request)
 817                 return -ENOMEM;
 818
 819         cqp_info = &cqp_request->info;
 820         memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
 821                sizeof(cqp_info->in.u.update_pe_sds.info));
 822         cqp_info->cqp_cmd = IRDMA_OP_UPDATE_PE_SDS;
 823         cqp_info->post_sq = 1;
 824         cqp_info->in.u.update_pe_sds.dev = dev;
 825         cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
 826
 827         status = irdma_handle_cqp_op(rf, cqp_request);
 828         irdma_put_cqp_request(&rf->cqp, cqp_request);
 829
 830         return status;
 831 }
 832
 833 /**
 834  * irdma_cqp_qp_suspend_resume - cqp command for suspend/resume
 835  * @qp: hardware control qp
 836  * @op: suspend or resume
 837  */
 838 int irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp, u8 op)
 839 {
 840         struct irdma_sc_dev *dev = qp->dev;
 841         struct irdma_cqp_request *cqp_request;
 842         struct irdma_sc_cqp *cqp = dev->cqp;
 843         struct cqp_cmds_info *cqp_info;
 844         struct irdma_pci_f *rf = dev_to_rf(dev);
 845         int status;
 846
 847         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
 848         if (!cqp_request)
 849                 return -ENOMEM;
 850
 851         cqp_info = &cqp_request->info;
 852         cqp_info->cqp_cmd = op;
 853         cqp_info->in.u.suspend_resume.cqp = cqp;
 854         cqp_info->in.u.suspend_resume.qp = qp;
 855         cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request;
 856
 857         status = irdma_handle_cqp_op(rf, cqp_request);
 858         irdma_put_cqp_request(&rf->cqp, cqp_request);
 859
 860         return status;
 861 }
 862
 863 /**
 864  * irdma_term_modify_qp - modify qp for term message
 865  * @qp: hardware control qp
 866  * @next_state: qp's next state
 867  * @term: terminate code
 868  * @term_len: length
 869  */
 870 void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term,
 871                           u8 term_len)
 872 {
 873         struct irdma_qp *iwqp;
 874
 875         iwqp = qp->qp_uk.back_qp;
 876         irdma_next_iw_state(iwqp, next_state, 0, term, term_len);
 877 };
 878
 879 /**
 880  * irdma_terminate_done - after terminate is completed
 881  * @qp: hardware control qp
 882  * @timeout_occurred: indicates if terminate timer expired
 883  */
 884 void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred)
 885 {
 886         struct irdma_qp *iwqp;
 887         u8 hte = 0;
 888         bool first_time;
 889         unsigned long flags;
 890
 891         iwqp = qp->qp_uk.back_qp;
 892         spin_lock_irqsave(&iwqp->lock, flags);
 893         if (iwqp->hte_added) {
 894                 iwqp->hte_added = 0;
 895                 hte = 1;
 896         }
 897         first_time = !(qp->term_flags & IRDMA_TERM_DONE);
 898         qp->term_flags |= IRDMA_TERM_DONE;
 899         spin_unlock_irqrestore(&iwqp->lock, flags);
 900         if (first_time) {
 901                 if (!timeout_occurred)
 902                         irdma_terminate_del_timer(qp);
 903
 904                 irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0);
 905                 irdma_cm_disconn(iwqp);
 906         }
 907 }
 908
 909 static void irdma_terminate_timeout(struct timer_list *t)
 910 {
 911         struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer);
 912         struct irdma_sc_qp *qp = &iwqp->sc_qp;
 913
 914         irdma_terminate_done(qp, 1);
 915         irdma_qp_rem_ref(&iwqp->ibqp);
 916 }
 917
 918 /**
 919  * irdma_terminate_start_timer - start terminate timeout
 920  * @qp: hardware control qp
 921  */
 922 void irdma_terminate_start_timer(struct irdma_sc_qp *qp)
 923 {
 924         struct irdma_qp *iwqp;
 925
 926         iwqp = qp->qp_uk.back_qp;
 927         irdma_qp_add_ref(&iwqp->ibqp);
 928         timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0);
 929         iwqp->terminate_timer.expires = jiffies + HZ;
 930
 931         add_timer(&iwqp->terminate_timer);
 932 }
 933
 934 /**
 935  * irdma_terminate_del_timer - delete terminate timeout
 936  * @qp: hardware control qp
 937  */
 938 void irdma_terminate_del_timer(struct irdma_sc_qp *qp)
 939 {
 940         struct irdma_qp *iwqp;
 941         int ret;
 942
 943         iwqp = qp->qp_uk.back_qp;
 944         ret = del_timer(&iwqp->terminate_timer);
 945         if (ret)
 946                 irdma_qp_rem_ref(&iwqp->ibqp);
 947 }
 948
 949 /**
 950  * irdma_cqp_query_fpm_val_cmd - send cqp command for fpm
 951  * @dev: function device struct
 952  * @val_mem: buffer for fpm
 953  * @hmc_fn_id: function id for fpm
 954  */
 955 int irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev,
 956                                 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
 957 {
 958         struct irdma_cqp_request *cqp_request;
 959         struct cqp_cmds_info *cqp_info;
 960         struct irdma_pci_f *rf = dev_to_rf(dev);
 961         int status;
 962
 963         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 964         if (!cqp_request)
 965                 return -ENOMEM;
 966
 967         cqp_info = &cqp_request->info;
 968         cqp_request->param = NULL;
 969         cqp_info->in.u.query_fpm_val.cqp = dev->cqp;
 970         cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa;
 971         cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va;
 972         cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id;
 973         cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL;
 974         cqp_info->post_sq = 1;
 975         cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request;
 976
 977         status = irdma_handle_cqp_op(rf, cqp_request);
 978         irdma_put_cqp_request(&rf->cqp, cqp_request);
 979
 980         return status;
 981 }
 982
 983 /**
 984  * irdma_cqp_commit_fpm_val_cmd - commit fpm values in hw
 985  * @dev: hardware control device structure
 986  * @val_mem: buffer with fpm values
 987  * @hmc_fn_id: function id for fpm
 988  */
 989 int irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev,
 990                                  struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
 991 {
 992         struct irdma_cqp_request *cqp_request;
 993         struct cqp_cmds_info *cqp_info;
 994         struct irdma_pci_f *rf = dev_to_rf(dev);
 995         int status;
 996
 997         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 998         if (!cqp_request)
 999                 return -ENOMEM;
1000
1001         cqp_info = &cqp_request->info;
1002         cqp_request->param = NULL;
1003         cqp_info->in.u.commit_fpm_val.cqp = dev->cqp;
1004         cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa;
1005         cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va;
1006         cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id;
1007         cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL;
1008         cqp_info->post_sq = 1;
1009         cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request;
1010
1011         status = irdma_handle_cqp_op(rf, cqp_request);
1012         irdma_put_cqp_request(&rf->cqp, cqp_request);
1013
1014         return status;
1015 }
1016
1017 /**
1018  * irdma_cqp_cq_create_cmd - create a cq for the cqp
1019  * @dev: device pointer
1020  * @cq: pointer to created cq
1021  */
1022 int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1023 {
1024         struct irdma_pci_f *rf = dev_to_rf(dev);
1025         struct irdma_cqp *iwcqp = &rf->cqp;
1026         struct irdma_cqp_request *cqp_request;
1027         struct cqp_cmds_info *cqp_info;
1028         int status;
1029
1030         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1031         if (!cqp_request)
1032                 return -ENOMEM;
1033
1034         cqp_info = &cqp_request->info;
1035         cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
1036         cqp_info->post_sq = 1;
1037         cqp_info->in.u.cq_create.cq = cq;
1038         cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1039
1040         status = irdma_handle_cqp_op(rf, cqp_request);
1041         irdma_put_cqp_request(iwcqp, cqp_request);
1042
1043         return status;
1044 }
1045
1046 /**
1047  * irdma_cqp_qp_create_cmd - create a qp for the cqp
1048  * @dev: device pointer
1049  * @qp: pointer to created qp
1050  */
1051 int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1052 {
1053         struct irdma_pci_f *rf = dev_to_rf(dev);
1054         struct irdma_cqp *iwcqp = &rf->cqp;
1055         struct irdma_cqp_request *cqp_request;
1056         struct cqp_cmds_info *cqp_info;
1057         struct irdma_create_qp_info *qp_info;
1058         int status;
1059
1060         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1061         if (!cqp_request)
1062                 return -ENOMEM;
1063
1064         cqp_info = &cqp_request->info;
1065         qp_info = &cqp_request->info.in.u.qp_create.info;
1066         memset(qp_info, 0, sizeof(*qp_info));
1067         qp_info->cq_num_valid = true;
1068         qp_info->next_iwarp_state = IRDMA_QP_STATE_RTS;
1069         cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
1070         cqp_info->post_sq = 1;
1071         cqp_info->in.u.qp_create.qp = qp;
1072         cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
1073
1074         status = irdma_handle_cqp_op(rf, cqp_request);
1075         irdma_put_cqp_request(iwcqp, cqp_request);
1076
1077         return status;
1078 }
1079
1080 /**
1081  * irdma_dealloc_push_page - free a push page for qp
1082  * @rf: RDMA PCI function
1083  * @qp: hardware control qp
1084  */
1085 static void irdma_dealloc_push_page(struct irdma_pci_f *rf,
1086                                     struct irdma_sc_qp *qp)
1087 {
1088         struct irdma_cqp_request *cqp_request;
1089         struct cqp_cmds_info *cqp_info;
1090         int status;
1091
1092         if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX)
1093                 return;
1094
1095         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
1096         if (!cqp_request)
1097                 return;
1098
1099         cqp_info = &cqp_request->info;
1100         cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
1101         cqp_info->post_sq = 1;
1102         cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
1103         cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
1104         cqp_info->in.u.manage_push_page.info.free_page = 1;
1105         cqp_info->in.u.manage_push_page.info.push_page_type = 0;
1106         cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp;
1107         cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
1108         status = irdma_handle_cqp_op(rf, cqp_request);
1109         if (!status)
1110                 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
1111         irdma_put_cqp_request(&rf->cqp, cqp_request);
1112 }
1113
1114 /**
1115  * irdma_free_qp_rsrc - free up memory resources for qp
1116  * @iwqp: qp ptr (user or kernel)
1117  */
1118 void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
1119 {
1120         struct irdma_device *iwdev = iwqp->iwdev;
1121         struct irdma_pci_f *rf = iwdev->rf;
1122         u32 qp_num = iwqp->ibqp.qp_num;
1123
1124         irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
1125         irdma_dealloc_push_page(rf, &iwqp->sc_qp);
1126         if (iwqp->sc_qp.vsi) {
1127                 irdma_qp_rem_qos(&iwqp->sc_qp);
1128                 iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
1129                                            iwqp->sc_qp.user_pri);
1130         }
1131
1132         if (qp_num > 2)
1133                 irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
1134         dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size,
1135                           iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa);
1136         iwqp->q2_ctx_mem.va = NULL;
1137         dma_free_coherent(rf->sc_dev.hw->device, iwqp->kqp.dma_mem.size,
1138                           iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa);
1139         iwqp->kqp.dma_mem.va = NULL;
1140         kfree(iwqp->kqp.sq_wrid_mem);
1141         kfree(iwqp->kqp.rq_wrid_mem);
1142 }
1143
1144 /**
1145  * irdma_cq_wq_destroy - send cq destroy cqp
1146  * @rf: RDMA PCI function
1147  * @cq: hardware control cq
1148  */
1149 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
1150 {
1151         struct irdma_cqp_request *cqp_request;
1152         struct cqp_cmds_info *cqp_info;
1153
1154         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1155         if (!cqp_request)
1156                 return;
1157
1158         cqp_info = &cqp_request->info;
1159         cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY;
1160         cqp_info->post_sq = 1;
1161         cqp_info->in.u.cq_destroy.cq = cq;
1162         cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1163
1164         irdma_handle_cqp_op(rf, cqp_request);
1165         irdma_put_cqp_request(&rf->cqp, cqp_request);
1166 }
1167
1168 /**
1169  * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait
1170  * @cqp_request: modify QP completion
1171  */
1172 static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request)
1173 {
1174         struct cqp_cmds_info *cqp_info;
1175         struct irdma_qp *iwqp;
1176
1177         cqp_info = &cqp_request->info;
1178         iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp;
1179         atomic_dec(&iwqp->hw_mod_qp_pend);
1180         wake_up(&iwqp->mod_qp_waitq);
1181 }
1182
1183 /**
1184  * irdma_hw_modify_qp - setup cqp for modify qp
1185  * @iwdev: RDMA device
1186  * @iwqp: qp ptr (user or kernel)
1187  * @info: info for modify qp
1188  * @wait: flag to wait or not for modify qp completion
1189  */
1190 int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,
1191                        struct irdma_modify_qp_info *info, bool wait)
1192 {
1193         int status;
1194         struct irdma_pci_f *rf = iwdev->rf;
1195         struct irdma_cqp_request *cqp_request;
1196         struct cqp_cmds_info *cqp_info;
1197         struct irdma_modify_qp_info *m_info;
1198
1199         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1200         if (!cqp_request)
1201                 return -ENOMEM;
1202
1203         if (!wait) {
1204                 cqp_request->callback_fcn = irdma_hw_modify_qp_callback;
1205                 atomic_inc(&iwqp->hw_mod_qp_pend);
1206         }
1207         cqp_info = &cqp_request->info;
1208         m_info = &cqp_info->in.u.qp_modify.info;
1209         memcpy(m_info, info, sizeof(*m_info));
1210         cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1211         cqp_info->post_sq = 1;
1212         cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1213         cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1214         status = irdma_handle_cqp_op(rf, cqp_request);
1215         irdma_put_cqp_request(&rf->cqp, cqp_request);
1216         if (status) {
1217                 if (rdma_protocol_roce(&iwdev->ibdev, 1))
1218                         return status;
1219
1220                 switch (m_info->next_iwarp_state) {
1221                         struct irdma_gen_ae_info ae_info;
1222
1223                 case IRDMA_QP_STATE_RTS:
1224                 case IRDMA_QP_STATE_IDLE:
1225                 case IRDMA_QP_STATE_TERMINATE:
1226                 case IRDMA_QP_STATE_CLOSING:
1227                         if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE)
1228                                 irdma_send_reset(iwqp->cm_node);
1229                         else
1230                                 iwqp->sc_qp.term_flags = IRDMA_TERM_DONE;
1231                         if (!wait) {
1232                                 ae_info.ae_code = IRDMA_AE_BAD_CLOSE;
1233                                 ae_info.ae_src = 0;
1234                                 irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false);
1235                         } else {
1236                                 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp,
1237                                                                               wait);
1238                                 if (!cqp_request)
1239                                         return -ENOMEM;
1240
1241                                 cqp_info = &cqp_request->info;
1242                                 m_info = &cqp_info->in.u.qp_modify.info;
1243                                 memcpy(m_info, info, sizeof(*m_info));
1244                                 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1245                                 cqp_info->post_sq = 1;
1246                                 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1247                                 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1248                                 m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR;
1249                                 m_info->reset_tcp_conn = true;
1250                                 irdma_handle_cqp_op(rf, cqp_request);
1251                                 irdma_put_cqp_request(&rf->cqp, cqp_request);
1252                         }
1253                         break;
1254                 case IRDMA_QP_STATE_ERROR:
1255                 default:
1256                         break;
1257                 }
1258         }
1259
1260         return status;
1261 }
1262
1263 /**
1264  * irdma_cqp_cq_destroy_cmd - destroy the cqp cq
1265  * @dev: device pointer
1266  * @cq: pointer to cq
1267  */
1268 void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1269 {
1270         struct irdma_pci_f *rf = dev_to_rf(dev);
1271
1272         irdma_cq_wq_destroy(rf, cq);
1273 }
1274
1275 /**
1276  * irdma_cqp_qp_destroy_cmd - destroy the cqp
1277  * @dev: device pointer
1278  * @qp: pointer to qp
1279  */
1280 int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1281 {
1282         struct irdma_pci_f *rf = dev_to_rf(dev);
1283         struct irdma_cqp *iwcqp = &rf->cqp;
1284         struct irdma_cqp_request *cqp_request;
1285         struct cqp_cmds_info *cqp_info;
1286         int status;
1287
1288         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1289         if (!cqp_request)
1290                 return -ENOMEM;
1291
1292         cqp_info = &cqp_request->info;
1293         memset(cqp_info, 0, sizeof(*cqp_info));
1294         cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY;
1295         cqp_info->post_sq = 1;
1296         cqp_info->in.u.qp_destroy.qp = qp;
1297         cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
1298         cqp_info->in.u.qp_destroy.remove_hash_idx = true;
1299
1300         status = irdma_handle_cqp_op(rf, cqp_request);
1301         irdma_put_cqp_request(&rf->cqp, cqp_request);
1302
1303         return status;
1304 }
1305
1306 /**
1307  * irdma_ieq_mpa_crc_ae - generate AE for crc error
1308  * @dev: hardware control device structure
1309  * @qp: hardware control qp
1310  */
1311 void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1312 {
1313         struct irdma_gen_ae_info info = {};
1314         struct irdma_pci_f *rf = dev_to_rf(dev);
1315
1316         ibdev_dbg(&rf->iwdev->ibdev, "AEQ: Generate MPA CRC AE\n");
1317         info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR;
1318         info.ae_src = IRDMA_AE_SOURCE_RQ;
1319         irdma_gen_ae(rf, qp, &info, false);
1320 }
1321
1322 /**
1323  * irdma_init_hash_desc - initialize hash for crc calculation
1324  * @desc: cryption type
1325  */
1326 int irdma_init_hash_desc(struct shash_desc **desc)
1327 {
1328         struct crypto_shash *tfm;
1329         struct shash_desc *tdesc;
1330
1331         tfm = crypto_alloc_shash("crc32c", 0, 0);
1332         if (IS_ERR(tfm))
1333                 return -EINVAL;
1334
1335         tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
1336                         GFP_KERNEL);
1337         if (!tdesc) {
1338                 crypto_free_shash(tfm);
1339                 return -EINVAL;
1340         }
1341
1342         tdesc->tfm = tfm;
1343         *desc = tdesc;
1344
1345         return 0;
1346 }
1347
1348 /**
1349  * irdma_free_hash_desc - free hash desc
1350  * @desc: to be freed
1351  */
1352 void irdma_free_hash_desc(struct shash_desc *desc)
1353 {
1354         if (desc) {
1355                 crypto_free_shash(desc->tfm);
1356                 kfree(desc);
1357         }
1358 }
1359
1360 /**
1361  * irdma_ieq_check_mpacrc - check if mpa crc is OK
1362  * @desc: desc for hash
1363  * @addr: address of buffer for crc
1364  * @len: length of buffer
1365  * @val: value to be compared
1366  */
1367 int irdma_ieq_check_mpacrc(struct shash_desc *desc, void *addr, u32 len,
1368                            u32 val)
1369 {
1370         u32 crc = 0;
1371         int ret;
1372         int ret_code = 0;
1373
1374         crypto_shash_init(desc);
1375         ret = crypto_shash_update(desc, addr, len);
1376         if (!ret)
1377                 crypto_shash_final(desc, (u8 *)&crc);
1378         if (crc != val)
1379                 ret_code = -EINVAL;
1380
1381         return ret_code;
1382 }
1383
1384 /**
1385  * irdma_ieq_get_qp - get qp based on quad in puda buffer
1386  * @dev: hardware control device structure
1387  * @buf: receive puda buffer on exception q
1388  */
1389 struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
1390                                      struct irdma_puda_buf *buf)
1391 {
1392         struct irdma_qp *iwqp;
1393         struct irdma_cm_node *cm_node;
1394         struct irdma_device *iwdev = buf->vsi->back_vsi;
1395         u32 loc_addr[4] = {};
1396         u32 rem_addr[4] = {};
1397         u16 loc_port, rem_port;
1398         struct ipv6hdr *ip6h;
1399         struct iphdr *iph = (struct iphdr *)buf->iph;
1400         struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1401
1402         if (iph->version == 4) {
1403                 loc_addr[0] = ntohl(iph->daddr);
1404                 rem_addr[0] = ntohl(iph->saddr);
1405         } else {
1406                 ip6h = (struct ipv6hdr *)buf->iph;
1407                 irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
1408                 irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
1409         }
1410         loc_port = ntohs(tcph->dest);
1411         rem_port = ntohs(tcph->source);
1412         cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
1413                                   loc_addr, buf->vlan_valid ? buf->vlan_id : 0xFFFF);
1414         if (!cm_node)
1415                 return NULL;
1416
1417         iwqp = cm_node->iwqp;
1418         irdma_rem_ref_cm_node(cm_node);
1419
1420         return &iwqp->sc_qp;
1421 }
1422
1423 /**
1424  * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs
1425  * @qp: qp ptr
1426  */
1427 void irdma_send_ieq_ack(struct irdma_sc_qp *qp)
1428 {
1429         struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node;
1430         struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf;
1431         struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1432
1433         cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum;
1434         cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
1435
1436         irdma_send_ack(cm_node);
1437 }
1438
1439 /**
1440  * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer
1441  * @qp: qp pointer
1442  * @ah_info: AH info pointer
1443  */
1444 void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
1445                                 struct irdma_ah_info *ah_info)
1446 {
1447         struct irdma_puda_buf *buf = qp->pfpdu.ah_buf;
1448         struct iphdr *iph;
1449         struct ipv6hdr *ip6h;
1450
1451         memset(ah_info, 0, sizeof(*ah_info));
1452         ah_info->do_lpbk = true;
1453         ah_info->vlan_tag = buf->vlan_id;
1454         ah_info->insert_vlan_tag = buf->vlan_valid;
1455         ah_info->ipv4_valid = buf->ipv4;
1456         ah_info->vsi = qp->vsi;
1457
1458         if (buf->smac_valid)
1459                 ether_addr_copy(ah_info->mac_addr, buf->smac);
1460
1461         if (buf->ipv4) {
1462                 ah_info->ipv4_valid = true;
1463                 iph = (struct iphdr *)buf->iph;
1464                 ah_info->hop_ttl = iph->ttl;
1465                 ah_info->tc_tos = iph->tos;
1466                 ah_info->dest_ip_addr[0] = ntohl(iph->daddr);
1467                 ah_info->src_ip_addr[0] = ntohl(iph->saddr);
1468         } else {
1469                 ip6h = (struct ipv6hdr *)buf->iph;
1470                 ah_info->hop_ttl = ip6h->hop_limit;
1471                 ah_info->tc_tos = ip6h->priority;
1472                 irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
1473                                     ip6h->daddr.in6_u.u6_addr32);
1474                 irdma_copy_ip_ntohl(ah_info->src_ip_addr,
1475                                     ip6h->saddr.in6_u.u6_addr32);
1476         }
1477
1478         ah_info->dst_arpindex = irdma_arp_table(dev_to_rf(qp->dev),
1479                                                 ah_info->dest_ip_addr,
1480                                                 ah_info->ipv4_valid,
1481                                                 NULL, IRDMA_ARP_RESOLVE);
1482 }
1483
1484 /**
1485  * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer
1486  * @buf: puda to update
1487  * @len: length of buffer
1488  * @seqnum: seq number for tcp
1489  */
1490 static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf,
1491                                              u16 len, u32 seqnum)
1492 {
1493         struct tcphdr *tcph;
1494         struct iphdr *iph;
1495         u16 iphlen;
1496         u16 pktsize;
1497         u8 *addr = buf->mem.va;
1498
1499         iphlen = (buf->ipv4) ? 20 : 40;
1500         iph = (struct iphdr *)(addr + buf->maclen);
1501         tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
1502         pktsize = len + buf->tcphlen + iphlen;
1503         iph->tot_len = htons(pktsize);
1504         tcph->seq = htonl(seqnum);
1505 }
1506
1507 /**
1508  * irdma_ieq_update_tcpip_info - update tcpip in the buffer
1509  * @buf: puda to update
1510  * @len: length of buffer
1511  * @seqnum: seq number for tcp
1512  */
1513 void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len,
1514                                  u32 seqnum)
1515 {
1516         struct tcphdr *tcph;
1517         u8 *addr;
1518
1519         if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1520                 return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum);
1521
1522         addr = buf->mem.va;
1523         tcph = (struct tcphdr *)addr;
1524         tcph->seq = htonl(seqnum);
1525 }
1526
1527 /**
1528  * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda
1529  * buffer
1530  * @info: to get information
1531  * @buf: puda buffer
1532  */
1533 static int irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1534                                           struct irdma_puda_buf *buf)
1535 {
1536         struct iphdr *iph;
1537         struct ipv6hdr *ip6h;
1538         struct tcphdr *tcph;
1539         u16 iphlen;
1540         u16 pkt_len;
1541         u8 *mem = buf->mem.va;
1542         struct ethhdr *ethh = buf->mem.va;
1543
1544         if (ethh->h_proto == htons(0x8100)) {
1545                 info->vlan_valid = true;
1546                 buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) &
1547                                VLAN_VID_MASK;
1548         }
1549
1550         buf->maclen = (info->vlan_valid) ? 18 : 14;
1551         iphlen = (info->l3proto) ? 40 : 20;
1552         buf->ipv4 = (info->l3proto) ? false : true;
1553         buf->iph = mem + buf->maclen;
1554         iph = (struct iphdr *)buf->iph;
1555         buf->tcph = buf->iph + iphlen;
1556         tcph = (struct tcphdr *)buf->tcph;
1557
1558         if (buf->ipv4) {
1559                 pkt_len = ntohs(iph->tot_len);
1560         } else {
1561                 ip6h = (struct ipv6hdr *)buf->iph;
1562                 pkt_len = ntohs(ip6h->payload_len) + iphlen;
1563         }
1564
1565         buf->totallen = pkt_len + buf->maclen;
1566
1567         if (info->payload_len < buf->totallen) {
1568                 ibdev_dbg(to_ibdev(buf->vsi->dev),
1569                           "ERR: payload_len = 0x%x totallen expected0x%x\n",
1570                           info->payload_len, buf->totallen);
1571                 return -EINVAL;
1572         }
1573
1574         buf->tcphlen = tcph->doff << 2;
1575         buf->datalen = pkt_len - iphlen - buf->tcphlen;
1576         buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1577         buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
1578         buf->seqnum = ntohl(tcph->seq);
1579
1580         return 0;
1581 }
1582
1583 /**
1584  * irdma_puda_get_tcpip_info - get tcpip info from puda buffer
1585  * @info: to get information
1586  * @buf: puda buffer
1587  */
1588 int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1589                               struct irdma_puda_buf *buf)
1590 {
1591         struct tcphdr *tcph;
1592         u32 pkt_len;
1593         u8 *mem;
1594
1595         if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1596                 return irdma_gen1_puda_get_tcpip_info(info, buf);
1597
1598         mem = buf->mem.va;
1599         buf->vlan_valid = info->vlan_valid;
1600         if (info->vlan_valid)
1601                 buf->vlan_id = info->vlan;
1602
1603         buf->ipv4 = info->ipv4;
1604         if (buf->ipv4)
1605                 buf->iph = mem + IRDMA_IPV4_PAD;
1606         else
1607                 buf->iph = mem;
1608
1609         buf->tcph = mem + IRDMA_TCP_OFFSET;
1610         tcph = (struct tcphdr *)buf->tcph;
1611         pkt_len = info->payload_len;
1612         buf->totallen = pkt_len;
1613         buf->tcphlen = tcph->doff << 2;
1614         buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen;
1615         buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1616         buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen;
1617         buf->seqnum = ntohl(tcph->seq);
1618
1619         if (info->smac_valid) {
1620                 ether_addr_copy(buf->smac, info->smac);
1621                 buf->smac_valid = true;
1622         }
1623
1624         return 0;
1625 }
1626
1627 /**
1628  * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats
1629  * @t: timer_list pointer
1630  */
1631 static void irdma_hw_stats_timeout(struct timer_list *t)
1632 {
1633         struct irdma_vsi_pestat *pf_devstat =
1634                 from_timer(pf_devstat, t, stats_timer);
1635         struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi;
1636
1637         if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
1638                 irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false);
1639         else
1640                 irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat);
1641
1642         mod_timer(&pf_devstat->stats_timer,
1643                   jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1644 }
1645
1646 /**
1647  * irdma_hw_stats_start_timer - Start periodic stats timer
1648  * @vsi: vsi structure pointer
1649  */
1650 void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi)
1651 {
1652         struct irdma_vsi_pestat *devstat = vsi->pestat;
1653
1654         timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0);
1655         mod_timer(&devstat->stats_timer,
1656                   jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1657 }
1658
1659 /**
1660  * irdma_hw_stats_stop_timer - Delete periodic stats timer
1661  * @vsi: pointer to vsi structure
1662  */
1663 void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi)
1664 {
1665         struct irdma_vsi_pestat *devstat = vsi->pestat;
1666
1667         del_timer_sync(&devstat->stats_timer);
1668 }
1669
1670 /**
1671  * irdma_process_stats - Checking for wrap and update stats
1672  * @pestat: stats structure pointer
1673  */
1674 static inline void irdma_process_stats(struct irdma_vsi_pestat *pestat)
1675 {
1676         sc_vsi_update_stats(pestat->vsi);
1677 }
1678
1679 /**
1680  * irdma_cqp_gather_stats_gen1 - Gather stats
1681  * @dev: pointer to device structure
1682  * @pestat: statistics structure
1683  */
1684 void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev,
1685                                  struct irdma_vsi_pestat *pestat)
1686 {
1687         struct irdma_gather_stats *gather_stats =
1688                 pestat->gather_info.gather_stats_va;
1689         const struct irdma_hw_stat_map *map = dev->hw_stats_map;
1690         u16 max_stats_idx = dev->hw_attrs.max_stat_idx;
1691         u32 stats_inst_offset_32;
1692         u32 stats_inst_offset_64;
1693         u64 new_val;
1694         u16 i;
1695
1696         stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ?
1697                                 pestat->gather_info.stats_inst_index :
1698                                 pestat->hw->hmc.hmc_fn_id;
1699         stats_inst_offset_32 *= 4;
1700         stats_inst_offset_64 = stats_inst_offset_32 * 2;
1701
1702         for (i = 0; i < max_stats_idx; i++) {
1703                 if (map[i].bitmask <= IRDMA_MAX_STATS_32)
1704                         new_val = rd32(dev->hw,
1705                                        dev->hw_stats_regs[i] + stats_inst_offset_32);
1706                 else
1707                         new_val = rd64(dev->hw,
1708                                        dev->hw_stats_regs[i] + stats_inst_offset_64);
1709                 gather_stats->val[map[i].byteoff / sizeof(u64)] = new_val;
1710         }
1711
1712         irdma_process_stats(pestat);
1713 }
1714
1715 /**
1716  * irdma_process_cqp_stats - Checking for wrap and update stats
1717  * @cqp_request: cqp_request structure pointer
1718  */
1719 static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request)
1720 {
1721         struct irdma_vsi_pestat *pestat = cqp_request->param;
1722
1723         irdma_process_stats(pestat);
1724 }
1725
1726 /**
1727  * irdma_cqp_gather_stats_cmd - Gather stats
1728  * @dev: pointer to device structure
1729  * @pestat: pointer to stats info
1730  * @wait: flag to wait or not wait for stats
1731  */
1732 int irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev,
1733                                struct irdma_vsi_pestat *pestat, bool wait)
1734
1735 {
1736         struct irdma_pci_f *rf = dev_to_rf(dev);
1737         struct irdma_cqp *iwcqp = &rf->cqp;
1738         struct irdma_cqp_request *cqp_request;
1739         struct cqp_cmds_info *cqp_info;
1740         int status;
1741
1742         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1743         if (!cqp_request)
1744                 return -ENOMEM;
1745
1746         cqp_info = &cqp_request->info;
1747         memset(cqp_info, 0, sizeof(*cqp_info));
1748         cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER;
1749         cqp_info->post_sq = 1;
1750         cqp_info->in.u.stats_gather.info = pestat->gather_info;
1751         cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request;
1752         cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp;
1753         cqp_request->param = pestat;
1754         if (!wait)
1755                 cqp_request->callback_fcn = irdma_process_cqp_stats;
1756         status = irdma_handle_cqp_op(rf, cqp_request);
1757         if (wait)
1758                 irdma_process_stats(pestat);
1759         irdma_put_cqp_request(&rf->cqp, cqp_request);
1760
1761         return status;
1762 }
1763
1764 /**
1765  * irdma_cqp_stats_inst_cmd - Allocate/free stats instance
1766  * @vsi: pointer to vsi structure
1767  * @cmd: command to allocate or free
1768  * @stats_info: pointer to allocate stats info
1769  */
1770 int irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd,
1771                              struct irdma_stats_inst_info *stats_info)
1772 {
1773         struct irdma_pci_f *rf = dev_to_rf(vsi->dev);
1774         struct irdma_cqp *iwcqp = &rf->cqp;
1775         struct irdma_cqp_request *cqp_request;
1776         struct cqp_cmds_info *cqp_info;
1777         int status;
1778         bool wait = false;
1779
1780         if (cmd == IRDMA_OP_STATS_ALLOCATE)
1781                 wait = true;
1782         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1783         if (!cqp_request)
1784                 return -ENOMEM;
1785
1786         cqp_info = &cqp_request->info;
1787         memset(cqp_info, 0, sizeof(*cqp_info));
1788         cqp_info->cqp_cmd = cmd;
1789         cqp_info->post_sq = 1;
1790         cqp_info->in.u.stats_manage.info = *stats_info;
1791         cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request;
1792         cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp;
1793         status = irdma_handle_cqp_op(rf, cqp_request);
1794         if (wait)
1795                 stats_info->stats_idx = cqp_request->compl_info.op_ret_val;
1796         irdma_put_cqp_request(iwcqp, cqp_request);
1797
1798         return status;
1799 }
1800
1801 /**
1802  * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0
1803  * @dev: pointer to device info
1804  * @sc_ceq: pointer to ceq structure
1805  * @op: Create or Destroy
1806  */
1807 int irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_ceq *sc_ceq,
1808                       u8 op)
1809 {
1810         struct irdma_cqp_request *cqp_request;
1811         struct cqp_cmds_info *cqp_info;
1812         struct irdma_pci_f *rf = dev_to_rf(dev);
1813         int status;
1814
1815         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1816         if (!cqp_request)
1817                 return -ENOMEM;
1818
1819         cqp_info = &cqp_request->info;
1820         cqp_info->post_sq = 1;
1821         cqp_info->cqp_cmd = op;
1822         cqp_info->in.u.ceq_create.ceq = sc_ceq;
1823         cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request;
1824
1825         status = irdma_handle_cqp_op(rf, cqp_request);
1826         irdma_put_cqp_request(&rf->cqp, cqp_request);
1827
1828         return status;
1829 }
1830
1831 /**
1832  * irdma_cqp_aeq_cmd - Create/Destroy AEQ
1833  * @dev: pointer to device info
1834  * @sc_aeq: pointer to aeq structure
1835  * @op: Create or Destroy
1836  */
1837 int irdma_cqp_aeq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_aeq *sc_aeq,
1838                       u8 op)
1839 {
1840         struct irdma_cqp_request *cqp_request;
1841         struct cqp_cmds_info *cqp_info;
1842         struct irdma_pci_f *rf = dev_to_rf(dev);
1843         int status;
1844
1845         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1846         if (!cqp_request)
1847                 return -ENOMEM;
1848
1849         cqp_info = &cqp_request->info;
1850         cqp_info->post_sq = 1;
1851         cqp_info->cqp_cmd = op;
1852         cqp_info->in.u.aeq_create.aeq = sc_aeq;
1853         cqp_info->in.u.aeq_create.scratch = (uintptr_t)cqp_request;
1854
1855         status = irdma_handle_cqp_op(rf, cqp_request);
1856         irdma_put_cqp_request(&rf->cqp, cqp_request);
1857
1858         return status;
1859 }
1860
1861 /**
1862  * irdma_cqp_ws_node_cmd - Add/modify/delete ws node
1863  * @dev: pointer to device structure
1864  * @cmd: Add, modify or delete
1865  * @node_info: pointer to ws node info
1866  */
1867 int irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd,
1868                           struct irdma_ws_node_info *node_info)
1869 {
1870         struct irdma_pci_f *rf = dev_to_rf(dev);
1871         struct irdma_cqp *iwcqp = &rf->cqp;
1872         struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
1873         struct irdma_cqp_request *cqp_request;
1874         struct cqp_cmds_info *cqp_info;
1875         int status;
1876         bool poll;
1877
1878         if (!rf->sc_dev.ceq_valid)
1879                 poll = true;
1880         else
1881                 poll = false;
1882
1883         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, !poll);
1884         if (!cqp_request)
1885                 return -ENOMEM;
1886
1887         cqp_info = &cqp_request->info;
1888         memset(cqp_info, 0, sizeof(*cqp_info));
1889         cqp_info->cqp_cmd = cmd;
1890         cqp_info->post_sq = 1;
1891         cqp_info->in.u.ws_node.info = *node_info;
1892         cqp_info->in.u.ws_node.cqp = cqp;
1893         cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request;
1894         status = irdma_handle_cqp_op(rf, cqp_request);
1895         if (status)
1896                 goto exit;
1897
1898         if (poll) {
1899                 struct irdma_ccq_cqe_info compl_info;
1900
1901                 status = irdma_sc_poll_for_cqp_op_done(cqp, IRDMA_CQP_OP_WORK_SCHED_NODE,
1902                                                        &compl_info);
1903                 node_info->qs_handle = compl_info.op_ret_val;
1904                 ibdev_dbg(&rf->iwdev->ibdev, "DCB: opcode=%d, compl_info.retval=%d\n",
1905                           compl_info.op_code, compl_info.op_ret_val);
1906         } else {
1907                 node_info->qs_handle = cqp_request->compl_info.op_ret_val;
1908         }
1909
1910 exit:
1911         irdma_put_cqp_request(&rf->cqp, cqp_request);
1912
1913         return status;
1914 }
1915
1916 /**
1917  * irdma_ah_cqp_op - perform an AH cqp operation
1918  * @rf: RDMA PCI function
1919  * @sc_ah: address handle
1920  * @cmd: AH operation
1921  * @wait: wait if true
1922  * @callback_fcn: Callback function on CQP op completion
1923  * @cb_param: parameter for callback function
1924  *
1925  * returns errno
1926  */
1927 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
1928                     bool wait,
1929                     void (*callback_fcn)(struct irdma_cqp_request *),
1930                     void *cb_param)
1931 {
1932         struct irdma_cqp_request *cqp_request;
1933         struct cqp_cmds_info *cqp_info;
1934         int status;
1935
1936         if (cmd != IRDMA_OP_AH_CREATE && cmd != IRDMA_OP_AH_DESTROY)
1937                 return -EINVAL;
1938
1939         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1940         if (!cqp_request)
1941                 return -ENOMEM;
1942
1943         cqp_info = &cqp_request->info;
1944         cqp_info->cqp_cmd = cmd;
1945         cqp_info->post_sq = 1;
1946         if (cmd == IRDMA_OP_AH_CREATE) {
1947                 cqp_info->in.u.ah_create.info = sc_ah->ah_info;
1948                 cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request;
1949                 cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp;
1950         } else if (cmd == IRDMA_OP_AH_DESTROY) {
1951                 cqp_info->in.u.ah_destroy.info = sc_ah->ah_info;
1952                 cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request;
1953                 cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp;
1954         }
1955
1956         if (!wait) {
1957                 cqp_request->callback_fcn = callback_fcn;
1958                 cqp_request->param = cb_param;
1959         }
1960         status = irdma_handle_cqp_op(rf, cqp_request);
1961         irdma_put_cqp_request(&rf->cqp, cqp_request);
1962
1963         if (status)
1964                 return -ENOMEM;
1965
1966         if (wait)
1967                 sc_ah->ah_info.ah_valid = (cmd == IRDMA_OP_AH_CREATE);
1968
1969         return 0;
1970 }
1971
1972 /**
1973  * irdma_ieq_ah_cb - callback after creation of AH for IEQ
1974  * @cqp_request: pointer to cqp_request of create AH
1975  */
1976 static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request)
1977 {
1978         struct irdma_sc_qp *qp = cqp_request->param;
1979         struct irdma_sc_ah *sc_ah = qp->pfpdu.ah;
1980         unsigned long flags;
1981
1982         spin_lock_irqsave(&qp->pfpdu.lock, flags);
1983         if (!cqp_request->compl_info.op_ret_val) {
1984                 sc_ah->ah_info.ah_valid = true;
1985                 irdma_ieq_process_fpdus(qp, qp->vsi->ieq);
1986         } else {
1987                 sc_ah->ah_info.ah_valid = false;
1988                 irdma_ieq_cleanup_qp(qp->vsi->ieq, qp);
1989         }
1990         spin_unlock_irqrestore(&qp->pfpdu.lock, flags);
1991 }
1992
1993 /**
1994  * irdma_ilq_ah_cb - callback after creation of AH for ILQ
1995  * @cqp_request: pointer to cqp_request of create AH
1996  */
1997 static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request)
1998 {
1999         struct irdma_cm_node *cm_node = cqp_request->param;
2000         struct irdma_sc_ah *sc_ah = cm_node->ah;
2001
2002         sc_ah->ah_info.ah_valid = !cqp_request->compl_info.op_ret_val;
2003         irdma_add_conn_est_qh(cm_node);
2004 }
2005
2006 /**
2007  * irdma_puda_create_ah - create AH for ILQ/IEQ qp's
2008  * @dev: device pointer
2009  * @ah_info: Address handle info
2010  * @wait: When true will wait for operation to complete
2011  * @type: ILQ/IEQ
2012  * @cb_param: Callback param when not waiting
2013  * @ah_ret: Returned pointer to address handle if created
2014  *
2015  */
2016 int irdma_puda_create_ah(struct irdma_sc_dev *dev,
2017                          struct irdma_ah_info *ah_info, bool wait,
2018                          enum puda_rsrc_type type, void *cb_param,
2019                          struct irdma_sc_ah **ah_ret)
2020 {
2021         struct irdma_sc_ah *ah;
2022         struct irdma_pci_f *rf = dev_to_rf(dev);
2023         int err;
2024
2025         ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
2026         *ah_ret = ah;
2027         if (!ah)
2028                 return -ENOMEM;
2029
2030         err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah,
2031                                &ah_info->ah_idx, &rf->next_ah);
2032         if (err)
2033                 goto err_free;
2034
2035         ah->dev = dev;
2036         ah->ah_info = *ah_info;
2037
2038         if (type == IRDMA_PUDA_RSRC_TYPE_ILQ)
2039                 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2040                                       irdma_ilq_ah_cb, cb_param);
2041         else
2042                 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2043                                       irdma_ieq_ah_cb, cb_param);
2044
2045         if (err)
2046                 goto error;
2047         return 0;
2048
2049 error:
2050         irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2051 err_free:
2052         kfree(ah);
2053         *ah_ret = NULL;
2054         return -ENOMEM;
2055 }
2056
2057 /**
2058  * irdma_puda_free_ah - free a puda address handle
2059  * @dev: device pointer
2060  * @ah: The address handle to free
2061  */
2062 void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah)
2063 {
2064         struct irdma_pci_f *rf = dev_to_rf(dev);
2065
2066         if (!ah)
2067                 return;
2068
2069         if (ah->ah_info.ah_valid) {
2070                 irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL);
2071                 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2072         }
2073
2074         kfree(ah);
2075 }
2076
2077 /**
2078  * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP
2079  * @cqp_request: pointer to cqp_request of create AH
2080  */
2081 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request)
2082 {
2083         struct irdma_sc_ah *sc_ah = cqp_request->param;
2084
2085         if (!cqp_request->compl_info.op_ret_val)
2086                 sc_ah->ah_info.ah_valid = true;
2087         else
2088                 sc_ah->ah_info.ah_valid = false;
2089 }
2090
2091 /**
2092  * irdma_prm_add_pble_mem - add moemory to pble resources
2093  * @pprm: pble resource manager
2094  * @pchunk: chunk of memory to add
2095  */
2096 int irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
2097                            struct irdma_chunk *pchunk)
2098 {
2099         u64 sizeofbitmap;
2100
2101         if (pchunk->size & 0xfff)
2102                 return -EINVAL;
2103
2104         sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift;
2105
2106         pchunk->bitmapbuf = bitmap_zalloc(sizeofbitmap, GFP_KERNEL);
2107         if (!pchunk->bitmapbuf)
2108                 return -ENOMEM;
2109
2110         pchunk->sizeofbitmap = sizeofbitmap;
2111         /* each pble is 8 bytes hence shift by 3 */
2112         pprm->total_pble_alloc += pchunk->size >> 3;
2113         pprm->free_pble_cnt += pchunk->size >> 3;
2114
2115         return 0;
2116 }
2117
2118 /**
2119  * irdma_prm_get_pbles - get pble's from prm
2120  * @pprm: pble resource manager
2121  * @chunkinfo: nformation about chunk where pble's were acquired
2122  * @mem_size: size of pble memory needed
2123  * @vaddr: returns virtual address of pble memory
2124  * @fpm_addr: returns fpm address of pble memory
2125  */
2126 int irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
2127                         struct irdma_pble_chunkinfo *chunkinfo, u64 mem_size,
2128                         u64 **vaddr, u64 *fpm_addr)
2129 {
2130         u64 bits_needed;
2131         u64 bit_idx = PBLE_INVALID_IDX;
2132         struct irdma_chunk *pchunk = NULL;
2133         struct list_head *chunk_entry = pprm->clist.next;
2134         u32 offset;
2135         unsigned long flags;
2136         *vaddr = NULL;
2137         *fpm_addr = 0;
2138
2139         bits_needed = DIV_ROUND_UP_ULL(mem_size, BIT_ULL(pprm->pble_shift));
2140
2141         spin_lock_irqsave(&pprm->prm_lock, flags);
2142         while (chunk_entry != &pprm->clist) {
2143                 pchunk = (struct irdma_chunk *)chunk_entry;
2144                 bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf,
2145                                                      pchunk->sizeofbitmap, 0,
2146                                                      bits_needed, 0);
2147                 if (bit_idx < pchunk->sizeofbitmap)
2148                         break;
2149
2150                 /* list.next used macro */
2151                 chunk_entry = pchunk->list.next;
2152         }
2153
2154         if (!pchunk || bit_idx >= pchunk->sizeofbitmap) {
2155                 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2156                 return -ENOMEM;
2157         }
2158
2159         bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed);
2160         offset = bit_idx << pprm->pble_shift;
2161         *vaddr = pchunk->vaddr + offset;
2162         *fpm_addr = pchunk->fpm_addr + offset;
2163
2164         chunkinfo->pchunk = pchunk;
2165         chunkinfo->bit_idx = bit_idx;
2166         chunkinfo->bits_used = bits_needed;
2167         /* 3 is sizeof pble divide */
2168         pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3);
2169         spin_unlock_irqrestore(&pprm->prm_lock, flags);
2170
2171         return 0;
2172 }
2173
2174 /**
2175  * irdma_prm_return_pbles - return pbles back to prm
2176  * @pprm: pble resource manager
2177  * @chunkinfo: chunk where pble's were acquired and to be freed
2178  */
2179 void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
2180                             struct irdma_pble_chunkinfo *chunkinfo)
2181 {
2182         unsigned long flags;
2183
2184         spin_lock_irqsave(&pprm->prm_lock, flags);
2185         pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3);
2186         bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx,
2187                      chunkinfo->bits_used);
2188         spin_unlock_irqrestore(&pprm->prm_lock, flags);
2189 }
2190
2191 int irdma_map_vm_page_list(struct irdma_hw *hw, void *va, dma_addr_t *pg_dma,
2192                            u32 pg_cnt)
2193 {
2194         struct page *vm_page;
2195         int i;
2196         u8 *addr;
2197
2198         addr = (u8 *)(uintptr_t)va;
2199         for (i = 0; i < pg_cnt; i++) {
2200                 vm_page = vmalloc_to_page(addr);
2201                 if (!vm_page)
2202                         goto err;
2203
2204                 pg_dma[i] = dma_map_page(hw->device, vm_page, 0, PAGE_SIZE,
2205                                          DMA_BIDIRECTIONAL);
2206                 if (dma_mapping_error(hw->device, pg_dma[i]))
2207                         goto err;
2208
2209                 addr += PAGE_SIZE;
2210         }
2211
2212         return 0;
2213
2214 err:
2215         irdma_unmap_vm_page_list(hw, pg_dma, i);
2216         return -ENOMEM;
2217 }
2218
2219 void irdma_unmap_vm_page_list(struct irdma_hw *hw, dma_addr_t *pg_dma, u32 pg_cnt)
2220 {
2221         int i;
2222
2223         for (i = 0; i < pg_cnt; i++)
2224                 dma_unmap_page(hw->device, pg_dma[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
2225 }
2226
2227 /**
2228  * irdma_pble_free_paged_mem - free virtual paged memory
2229  * @chunk: chunk to free with paged memory
2230  */
2231 void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
2232 {
2233         if (!chunk->pg_cnt)
2234                 goto done;
2235
2236         irdma_unmap_vm_page_list(chunk->dev->hw, chunk->dmainfo.dmaaddrs,
2237                                  chunk->pg_cnt);
2238
2239 done:
2240         kfree(chunk->dmainfo.dmaaddrs);
2241         chunk->dmainfo.dmaaddrs = NULL;
2242         vfree(chunk->vaddr);
2243         chunk->vaddr = NULL;
2244         chunk->type = 0;
2245 }
2246
2247 /**
2248  * irdma_pble_get_paged_mem -allocate paged memory for pbles
2249  * @chunk: chunk to add for paged memory
2250  * @pg_cnt: number of pages needed
2251  */
2252 int irdma_pble_get_paged_mem(struct irdma_chunk *chunk, u32 pg_cnt)
2253 {
2254         u32 size;
2255         void *va;
2256
2257         chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
2258         if (!chunk->dmainfo.dmaaddrs)
2259                 return -ENOMEM;
2260
2261         size = PAGE_SIZE * pg_cnt;
2262         va = vmalloc(size);
2263         if (!va)
2264                 goto err;
2265
2266         if (irdma_map_vm_page_list(chunk->dev->hw, va, chunk->dmainfo.dmaaddrs,
2267                                    pg_cnt)) {
2268                 vfree(va);
2269                 goto err;
2270         }
2271         chunk->vaddr = va;
2272         chunk->size = size;
2273         chunk->pg_cnt = pg_cnt;
2274         chunk->type = PBLE_SD_PAGED;
2275
2276         return 0;
2277 err:
2278         kfree(chunk->dmainfo.dmaaddrs);
2279         chunk->dmainfo.dmaaddrs = NULL;
2280
2281         return -ENOMEM;
2282 }
2283
2284 /**
2285  * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID
2286  * @dev: device pointer
2287  */
2288 u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev)
2289 {
2290         struct irdma_pci_f *rf = dev_to_rf(dev);
2291         u32 next = 1;
2292         u32 node_id;
2293
2294         if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id,
2295                              &node_id, &next))
2296                 return IRDMA_WS_NODE_INVALID;
2297
2298         return (u16)node_id;
2299 }
2300
2301 /**
2302  * irdma_free_ws_node_id - Free a tx scheduler node ID
2303  * @dev: device pointer
2304  * @node_id: Work scheduler node ID
2305  */
2306 void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id)
2307 {
2308         struct irdma_pci_f *rf = dev_to_rf(dev);
2309
2310         irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id);
2311 }
2312
2313 /**
2314  * irdma_modify_qp_to_err - Modify a QP to error
2315  * @sc_qp: qp structure
2316  */
2317 void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp)
2318 {
2319         struct irdma_qp *qp = sc_qp->qp_uk.back_qp;
2320         struct ib_qp_attr attr;
2321
2322         if (qp->iwdev->rf->reset)
2323                 return;
2324         attr.qp_state = IB_QPS_ERR;
2325
2326         if (rdma_protocol_roce(qp->ibqp.device, 1))
2327                 irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2328         else
2329                 irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2330 }
2331
2332 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event)
2333 {
2334         struct ib_event ibevent;
2335
2336         if (!iwqp->ibqp.event_handler)
2337                 return;
2338
2339         switch (event) {
2340         case IRDMA_QP_EVENT_CATASTROPHIC:
2341                 ibevent.event = IB_EVENT_QP_FATAL;
2342                 break;
2343         case IRDMA_QP_EVENT_ACCESS_ERR:
2344                 ibevent.event = IB_EVENT_QP_ACCESS_ERR;
2345                 break;
2346         case IRDMA_QP_EVENT_REQ_ERR:
2347                 ibevent.event = IB_EVENT_QP_REQ_ERR;
2348                 break;
2349         }
2350         ibevent.device = iwqp->ibqp.device;
2351         ibevent.element.qp = &iwqp->ibqp;
2352         iwqp->ibqp.event_handler(&ibevent, iwqp->ibqp.qp_context);
2353 }
2354
2355 bool irdma_cq_empty(struct irdma_cq *iwcq)
2356 {
2357         struct irdma_cq_uk *ukcq;
2358         u64 qword3;
2359         __le64 *cqe;
2360         u8 polarity;
2361
2362         ukcq  = &iwcq->sc_cq.cq_uk;
2363         cqe = IRDMA_GET_CURRENT_CQ_ELEM(ukcq);
2364         get_64bit_val(cqe, 24, &qword3);
2365         polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
2366
2367         return polarity != ukcq->polarity;
2368 }
2369
2370 void irdma_remove_cmpls_list(struct irdma_cq *iwcq)
2371 {
2372         struct irdma_cmpl_gen *cmpl_node;
2373         struct list_head *tmp_node, *list_node;
2374
2375         list_for_each_safe (list_node, tmp_node, &iwcq->cmpl_generated) {
2376                 cmpl_node = list_entry(list_node, struct irdma_cmpl_gen, list);
2377                 list_del(&cmpl_node->list);
2378                 kfree(cmpl_node);
2379         }
2380 }
2381
2382 int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info)
2383 {
2384         struct irdma_cmpl_gen *cmpl;
2385
2386         if (list_empty(&iwcq->cmpl_generated))
2387                 return -ENOENT;
2388         cmpl = list_first_entry_or_null(&iwcq->cmpl_generated, struct irdma_cmpl_gen, list);
2389         list_del(&cmpl->list);
2390         memcpy(cq_poll_info, &cmpl->cpi, sizeof(*cq_poll_info));
2391         kfree(cmpl);
2392
2393         ibdev_dbg(iwcq->ibcq.device,
2394                   "VERBS: %s: Poll artificially generated completion for QP 0x%X, op %u, wr_id=0x%llx\n",
2395                   __func__, cq_poll_info->qp_id, cq_poll_info->op_type,
2396                   cq_poll_info->wr_id);
2397
2398         return 0;
2399 }
2400
2401 /**
2402  * irdma_set_cpi_common_values - fill in values for polling info struct
2403  * @cpi: resulting structure of cq_poll_info type
2404  * @qp: QPair
2405  * @qp_num: id of the QP
2406  */
2407 static void irdma_set_cpi_common_values(struct irdma_cq_poll_info *cpi,
2408                                         struct irdma_qp_uk *qp, u32 qp_num)
2409 {
2410         cpi->comp_status = IRDMA_COMPL_STATUS_FLUSHED;
2411         cpi->error = true;
2412         cpi->major_err = IRDMA_FLUSH_MAJOR_ERR;
2413         cpi->minor_err = FLUSH_GENERAL_ERR;
2414         cpi->qp_handle = (irdma_qp_handle)(uintptr_t)qp;
2415         cpi->qp_id = qp_num;
2416 }
2417
2418 static inline void irdma_comp_handler(struct irdma_cq *cq)
2419 {
2420         if (!cq->ibcq.comp_handler)
2421                 return;
2422         if (atomic_cmpxchg(&cq->armed, 1, 0))
2423                 cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
2424 }
2425
2426 void irdma_generate_flush_completions(struct irdma_qp *iwqp)
2427 {
2428         struct irdma_qp_uk *qp = &iwqp->sc_qp.qp_uk;
2429         struct irdma_ring *sq_ring = &qp->sq_ring;
2430         struct irdma_ring *rq_ring = &qp->rq_ring;
2431         struct irdma_cmpl_gen *cmpl;
2432         __le64 *sw_wqe;
2433         u64 wqe_qword;
2434         u32 wqe_idx;
2435         bool compl_generated = false;
2436         unsigned long flags1;
2437
2438         spin_lock_irqsave(&iwqp->iwscq->lock, flags1);
2439         if (irdma_cq_empty(iwqp->iwscq)) {
2440                 unsigned long flags2;
2441
2442                 spin_lock_irqsave(&iwqp->lock, flags2);
2443                 while (IRDMA_RING_MORE_WORK(*sq_ring)) {
2444                         cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2445                         if (!cmpl) {
2446                                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2447                                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2448                                 return;
2449                         }
2450
2451                         wqe_idx = sq_ring->tail;
2452                         irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2453
2454                         cmpl->cpi.wr_id = qp->sq_wrtrk_array[wqe_idx].wrid;
2455                         sw_wqe = qp->sq_base[wqe_idx].elem;
2456                         get_64bit_val(sw_wqe, 24, &wqe_qword);
2457                         cmpl->cpi.op_type = (u8)FIELD_GET(IRDMAQPSQ_OPCODE, IRDMAQPSQ_OPCODE);
2458                         cmpl->cpi.q_type = IRDMA_CQE_QTYPE_SQ;
2459                         /* remove the SQ WR by moving SQ tail*/
2460                         IRDMA_RING_SET_TAIL(*sq_ring,
2461                                 sq_ring->tail + qp->sq_wrtrk_array[sq_ring->tail].quanta);
2462                         if (cmpl->cpi.op_type == IRDMAQP_OP_NOP) {
2463                                 kfree(cmpl);
2464                                 continue;
2465                         }
2466                         ibdev_dbg(iwqp->iwscq->ibcq.device,
2467                                   "DEV: %s: adding wr_id = 0x%llx SQ Completion to list qp_id=%d\n",
2468                                   __func__, cmpl->cpi.wr_id, qp->qp_id);
2469                         list_add_tail(&cmpl->list, &iwqp->iwscq->cmpl_generated);
2470                         compl_generated = true;
2471                 }
2472                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2473                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2474                 if (compl_generated)
2475                         irdma_comp_handler(iwqp->iwscq);
2476         } else {
2477                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2478                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2479                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
2480         }
2481
2482         spin_lock_irqsave(&iwqp->iwrcq->lock, flags1);
2483         if (irdma_cq_empty(iwqp->iwrcq)) {
2484                 unsigned long flags2;
2485
2486                 spin_lock_irqsave(&iwqp->lock, flags2);
2487                 while (IRDMA_RING_MORE_WORK(*rq_ring)) {
2488                         cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2489                         if (!cmpl) {
2490                                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2491                                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2492                                 return;
2493                         }
2494
2495                         wqe_idx = rq_ring->tail;
2496                         irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2497
2498                         cmpl->cpi.wr_id = qp->rq_wrid_array[wqe_idx];
2499                         cmpl->cpi.op_type = IRDMA_OP_TYPE_REC;
2500                         cmpl->cpi.q_type = IRDMA_CQE_QTYPE_RQ;
2501                         /* remove the RQ WR by moving RQ tail */
2502                         IRDMA_RING_SET_TAIL(*rq_ring, rq_ring->tail + 1);
2503                         ibdev_dbg(iwqp->iwrcq->ibcq.device,
2504                                   "DEV: %s: adding wr_id = 0x%llx RQ Completion to list qp_id=%d, wqe_idx=%d\n",
2505                                   __func__, cmpl->cpi.wr_id, qp->qp_id,
2506                                   wqe_idx);
2507                         list_add_tail(&cmpl->list, &iwqp->iwrcq->cmpl_generated);
2508
2509                         compl_generated = true;
2510                 }
2511                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2512                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2513                 if (compl_generated)
2514                         irdma_comp_handler(iwqp->iwrcq);
2515         } else {
2516                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2517                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2518                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
2519         }
2520 }