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                 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                 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 = rf->sc_dev.cqp_cmd_stats[IRDMA_OP_CMPL_CMDS];
 571         do {
 572                 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
 573                 if (wait_event_timeout(cqp_request->waitq,
 574                                        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                     cqp_request->compl_info.min_err_code == 0x8029) {
 595                         if (!rf->reset) {
 596                                 rf->reset = true;
 597                                 rf->gen_ops.request_reset(rf);
 598                         }
 599                 }
 600         }
 601
 602         return err_code;
 603 }
 604
 605 static const char *const irdma_cqp_cmd_names[IRDMA_MAX_CQP_OPS] = {
 606         [IRDMA_OP_CEQ_DESTROY] = "Destroy CEQ Cmd",
 607         [IRDMA_OP_AEQ_DESTROY] = "Destroy AEQ Cmd",
 608         [IRDMA_OP_DELETE_ARP_CACHE_ENTRY] = "Delete ARP Cache Cmd",
 609         [IRDMA_OP_MANAGE_APBVT_ENTRY] = "Manage APBV Table Entry Cmd",
 610         [IRDMA_OP_CEQ_CREATE] = "CEQ Create Cmd",
 611         [IRDMA_OP_AEQ_CREATE] = "AEQ Destroy Cmd",
 612         [IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY] = "Manage Quad Hash Table Entry Cmd",
 613         [IRDMA_OP_QP_MODIFY] = "Modify QP Cmd",
 614         [IRDMA_OP_QP_UPLOAD_CONTEXT] = "Upload Context Cmd",
 615         [IRDMA_OP_CQ_CREATE] = "Create CQ Cmd",
 616         [IRDMA_OP_CQ_DESTROY] = "Destroy CQ Cmd",
 617         [IRDMA_OP_QP_CREATE] = "Create QP Cmd",
 618         [IRDMA_OP_QP_DESTROY] = "Destroy QP Cmd",
 619         [IRDMA_OP_ALLOC_STAG] = "Allocate STag Cmd",
 620         [IRDMA_OP_MR_REG_NON_SHARED] = "Register Non-Shared MR Cmd",
 621         [IRDMA_OP_DEALLOC_STAG] = "Deallocate STag Cmd",
 622         [IRDMA_OP_MW_ALLOC] = "Allocate Memory Window Cmd",
 623         [IRDMA_OP_QP_FLUSH_WQES] = "Flush QP Cmd",
 624         [IRDMA_OP_ADD_ARP_CACHE_ENTRY] = "Add ARP Cache Cmd",
 625         [IRDMA_OP_MANAGE_PUSH_PAGE] = "Manage Push Page Cmd",
 626         [IRDMA_OP_UPDATE_PE_SDS] = "Update PE SDs Cmd",
 627         [IRDMA_OP_MANAGE_HMC_PM_FUNC_TABLE] = "Manage HMC PM Function Table Cmd",
 628         [IRDMA_OP_SUSPEND] = "Suspend QP Cmd",
 629         [IRDMA_OP_RESUME] = "Resume QP Cmd",
 630         [IRDMA_OP_MANAGE_VF_PBLE_BP] = "Manage VF PBLE Backing Pages Cmd",
 631         [IRDMA_OP_QUERY_FPM_VAL] = "Query FPM Values Cmd",
 632         [IRDMA_OP_COMMIT_FPM_VAL] = "Commit FPM Values Cmd",
 633         [IRDMA_OP_AH_CREATE] = "Create Address Handle Cmd",
 634         [IRDMA_OP_AH_MODIFY] = "Modify Address Handle Cmd",
 635         [IRDMA_OP_AH_DESTROY] = "Destroy Address Handle Cmd",
 636         [IRDMA_OP_MC_CREATE] = "Create Multicast Group Cmd",
 637         [IRDMA_OP_MC_DESTROY] = "Destroy Multicast Group Cmd",
 638         [IRDMA_OP_MC_MODIFY] = "Modify Multicast Group Cmd",
 639         [IRDMA_OP_STATS_ALLOCATE] = "Add Statistics Instance Cmd",
 640         [IRDMA_OP_STATS_FREE] = "Free Statistics Instance Cmd",
 641         [IRDMA_OP_STATS_GATHER] = "Gather Statistics Cmd",
 642         [IRDMA_OP_WS_ADD_NODE] = "Add Work Scheduler Node Cmd",
 643         [IRDMA_OP_WS_MODIFY_NODE] = "Modify Work Scheduler Node Cmd",
 644         [IRDMA_OP_WS_DELETE_NODE] = "Delete Work Scheduler Node Cmd",
 645         [IRDMA_OP_SET_UP_MAP] = "Set UP-UP Mapping Cmd",
 646         [IRDMA_OP_GEN_AE] = "Generate AE Cmd",
 647         [IRDMA_OP_QUERY_RDMA_FEATURES] = "RDMA Get Features Cmd",
 648         [IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY] = "Allocate Local MAC Entry Cmd",
 649         [IRDMA_OP_ADD_LOCAL_MAC_ENTRY] = "Add Local MAC Entry Cmd",
 650         [IRDMA_OP_DELETE_LOCAL_MAC_ENTRY] = "Delete Local MAC Entry Cmd",
 651         [IRDMA_OP_CQ_MODIFY] = "CQ Modify Cmd",
 652 };
 653
 654 static const struct irdma_cqp_err_info irdma_noncrit_err_list[] = {
 655         {0xffff, 0x8006, "Flush No Wqe Pending"},
 656         {0xffff, 0x8007, "Modify QP Bad Close"},
 657         {0xffff, 0x8009, "LLP Closed"},
 658         {0xffff, 0x800a, "Reset Not Sent"}
 659 };
 660
 661 /**
 662  * irdma_cqp_crit_err - check if CQP error is critical
 663  * @dev: pointer to dev structure
 664  * @cqp_cmd: code for last CQP operation
 665  * @maj_err_code: major error code
 666  * @min_err_code: minot error code
 667  */
 668 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
 669                         u16 maj_err_code, u16 min_err_code)
 670 {
 671         int i;
 672
 673         for (i = 0; i < ARRAY_SIZE(irdma_noncrit_err_list); ++i) {
 674                 if (maj_err_code == irdma_noncrit_err_list[i].maj &&
 675                     min_err_code == irdma_noncrit_err_list[i].min) {
 676                         ibdev_dbg(to_ibdev(dev),
 677                                   "CQP: [%s Error][%s] maj=0x%x min=0x%x\n",
 678                                   irdma_noncrit_err_list[i].desc,
 679                                   irdma_cqp_cmd_names[cqp_cmd], maj_err_code,
 680                                   min_err_code);
 681                         return false;
 682                 }
 683         }
 684         return true;
 685 }
 686
 687 /**
 688  * irdma_handle_cqp_op - process cqp command
 689  * @rf: RDMA PCI function
 690  * @cqp_request: cqp request to process
 691  */
 692 int irdma_handle_cqp_op(struct irdma_pci_f *rf,
 693                         struct irdma_cqp_request *cqp_request)
 694 {
 695         struct irdma_sc_dev *dev = &rf->sc_dev;
 696         struct cqp_cmds_info *info = &cqp_request->info;
 697         int status;
 698         bool put_cqp_request = true;
 699
 700         if (rf->reset)
 701                 return -EBUSY;
 702
 703         irdma_get_cqp_request(cqp_request);
 704         status = irdma_process_cqp_cmd(dev, info);
 705         if (status)
 706                 goto err;
 707
 708         if (cqp_request->waiting) {
 709                 put_cqp_request = false;
 710                 status = irdma_wait_event(rf, cqp_request);
 711                 if (status)
 712                         goto err;
 713         }
 714
 715         return 0;
 716
 717 err:
 718         if (irdma_cqp_crit_err(dev, info->cqp_cmd,
 719                                cqp_request->compl_info.maj_err_code,
 720                                cqp_request->compl_info.min_err_code))
 721                 ibdev_err(&rf->iwdev->ibdev,
 722                           "[%s Error][op_code=%d] status=%d waiting=%d completion_err=%d maj=0x%x min=0x%x\n",
 723                           irdma_cqp_cmd_names[info->cqp_cmd], info->cqp_cmd, status, cqp_request->waiting,
 724                           cqp_request->compl_info.error, cqp_request->compl_info.maj_err_code,
 725                           cqp_request->compl_info.min_err_code);
 726
 727         if (put_cqp_request)
 728                 irdma_put_cqp_request(&rf->cqp, cqp_request);
 729
 730         return status;
 731 }
 732
 733 void irdma_qp_add_ref(struct ib_qp *ibqp)
 734 {
 735         struct irdma_qp *iwqp = (struct irdma_qp *)ibqp;
 736
 737         refcount_inc(&iwqp->refcnt);
 738 }
 739
 740 void irdma_qp_rem_ref(struct ib_qp *ibqp)
 741 {
 742         struct irdma_qp *iwqp = to_iwqp(ibqp);
 743         struct irdma_device *iwdev = iwqp->iwdev;
 744         u32 qp_num;
 745         unsigned long flags;
 746
 747         spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
 748         if (!refcount_dec_and_test(&iwqp->refcnt)) {
 749                 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
 750                 return;
 751         }
 752
 753         qp_num = iwqp->ibqp.qp_num;
 754         iwdev->rf->qp_table[qp_num] = NULL;
 755         spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
 756         complete(&iwqp->free_qp);
 757 }
 758
 759 struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
 760 {
 761         return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;
 762 }
 763
 764 /**
 765  * irdma_get_qp - get qp address
 766  * @device: iwarp device
 767  * @qpn: qp number
 768  */
 769 struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn)
 770 {
 771         struct irdma_device *iwdev = to_iwdev(device);
 772
 773         if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp)
 774                 return NULL;
 775
 776         return &iwdev->rf->qp_table[qpn]->ibqp;
 777 }
 778
 779 /**
 780  * irdma_remove_cqp_head - return head entry and remove
 781  * @dev: device
 782  */
 783 void *irdma_remove_cqp_head(struct irdma_sc_dev *dev)
 784 {
 785         struct list_head *entry;
 786         struct list_head *list = &dev->cqp_cmd_head;
 787
 788         if (list_empty(list))
 789                 return NULL;
 790
 791         entry = list->next;
 792         list_del(entry);
 793
 794         return entry;
 795 }
 796
 797 /**
 798  * irdma_cqp_sds_cmd - create cqp command for sd
 799  * @dev: hardware control device structure
 800  * @sdinfo: information for sd cqp
 801  *
 802  */
 803 int irdma_cqp_sds_cmd(struct irdma_sc_dev *dev,
 804                       struct irdma_update_sds_info *sdinfo)
 805 {
 806         struct irdma_cqp_request *cqp_request;
 807         struct cqp_cmds_info *cqp_info;
 808         struct irdma_pci_f *rf = dev_to_rf(dev);
 809         int status;
 810
 811         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 812         if (!cqp_request)
 813                 return -ENOMEM;
 814
 815         cqp_info = &cqp_request->info;
 816         memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
 817                sizeof(cqp_info->in.u.update_pe_sds.info));
 818         cqp_info->cqp_cmd = IRDMA_OP_UPDATE_PE_SDS;
 819         cqp_info->post_sq = 1;
 820         cqp_info->in.u.update_pe_sds.dev = dev;
 821         cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
 822
 823         status = irdma_handle_cqp_op(rf, cqp_request);
 824         irdma_put_cqp_request(&rf->cqp, cqp_request);
 825
 826         return status;
 827 }
 828
 829 /**
 830  * irdma_cqp_qp_suspend_resume - cqp command for suspend/resume
 831  * @qp: hardware control qp
 832  * @op: suspend or resume
 833  */
 834 int irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp, u8 op)
 835 {
 836         struct irdma_sc_dev *dev = qp->dev;
 837         struct irdma_cqp_request *cqp_request;
 838         struct irdma_sc_cqp *cqp = dev->cqp;
 839         struct cqp_cmds_info *cqp_info;
 840         struct irdma_pci_f *rf = dev_to_rf(dev);
 841         int status;
 842
 843         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
 844         if (!cqp_request)
 845                 return -ENOMEM;
 846
 847         cqp_info = &cqp_request->info;
 848         cqp_info->cqp_cmd = op;
 849         cqp_info->in.u.suspend_resume.cqp = cqp;
 850         cqp_info->in.u.suspend_resume.qp = qp;
 851         cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request;
 852
 853         status = irdma_handle_cqp_op(rf, cqp_request);
 854         irdma_put_cqp_request(&rf->cqp, cqp_request);
 855
 856         return status;
 857 }
 858
 859 /**
 860  * irdma_term_modify_qp - modify qp for term message
 861  * @qp: hardware control qp
 862  * @next_state: qp's next state
 863  * @term: terminate code
 864  * @term_len: length
 865  */
 866 void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term,
 867                           u8 term_len)
 868 {
 869         struct irdma_qp *iwqp;
 870
 871         iwqp = qp->qp_uk.back_qp;
 872         irdma_next_iw_state(iwqp, next_state, 0, term, term_len);
 873 };
 874
 875 /**
 876  * irdma_terminate_done - after terminate is completed
 877  * @qp: hardware control qp
 878  * @timeout_occurred: indicates if terminate timer expired
 879  */
 880 void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred)
 881 {
 882         struct irdma_qp *iwqp;
 883         u8 hte = 0;
 884         bool first_time;
 885         unsigned long flags;
 886
 887         iwqp = qp->qp_uk.back_qp;
 888         spin_lock_irqsave(&iwqp->lock, flags);
 889         if (iwqp->hte_added) {
 890                 iwqp->hte_added = 0;
 891                 hte = 1;
 892         }
 893         first_time = !(qp->term_flags & IRDMA_TERM_DONE);
 894         qp->term_flags |= IRDMA_TERM_DONE;
 895         spin_unlock_irqrestore(&iwqp->lock, flags);
 896         if (first_time) {
 897                 if (!timeout_occurred)
 898                         irdma_terminate_del_timer(qp);
 899
 900                 irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0);
 901                 irdma_cm_disconn(iwqp);
 902         }
 903 }
 904
 905 static void irdma_terminate_timeout(struct timer_list *t)
 906 {
 907         struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer);
 908         struct irdma_sc_qp *qp = &iwqp->sc_qp;
 909
 910         irdma_terminate_done(qp, 1);
 911         irdma_qp_rem_ref(&iwqp->ibqp);
 912 }
 913
 914 /**
 915  * irdma_terminate_start_timer - start terminate timeout
 916  * @qp: hardware control qp
 917  */
 918 void irdma_terminate_start_timer(struct irdma_sc_qp *qp)
 919 {
 920         struct irdma_qp *iwqp;
 921
 922         iwqp = qp->qp_uk.back_qp;
 923         irdma_qp_add_ref(&iwqp->ibqp);
 924         timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0);
 925         iwqp->terminate_timer.expires = jiffies + HZ;
 926
 927         add_timer(&iwqp->terminate_timer);
 928 }
 929
 930 /**
 931  * irdma_terminate_del_timer - delete terminate timeout
 932  * @qp: hardware control qp
 933  */
 934 void irdma_terminate_del_timer(struct irdma_sc_qp *qp)
 935 {
 936         struct irdma_qp *iwqp;
 937         int ret;
 938
 939         iwqp = qp->qp_uk.back_qp;
 940         ret = del_timer(&iwqp->terminate_timer);
 941         if (ret)
 942                 irdma_qp_rem_ref(&iwqp->ibqp);
 943 }
 944
 945 /**
 946  * irdma_cqp_query_fpm_val_cmd - send cqp command for fpm
 947  * @dev: function device struct
 948  * @val_mem: buffer for fpm
 949  * @hmc_fn_id: function id for fpm
 950  */
 951 int irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev,
 952                                 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
 953 {
 954         struct irdma_cqp_request *cqp_request;
 955         struct cqp_cmds_info *cqp_info;
 956         struct irdma_pci_f *rf = dev_to_rf(dev);
 957         int status;
 958
 959         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 960         if (!cqp_request)
 961                 return -ENOMEM;
 962
 963         cqp_info = &cqp_request->info;
 964         cqp_request->param = NULL;
 965         cqp_info->in.u.query_fpm_val.cqp = dev->cqp;
 966         cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa;
 967         cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va;
 968         cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id;
 969         cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL;
 970         cqp_info->post_sq = 1;
 971         cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request;
 972
 973         status = irdma_handle_cqp_op(rf, cqp_request);
 974         irdma_put_cqp_request(&rf->cqp, cqp_request);
 975
 976         return status;
 977 }
 978
 979 /**
 980  * irdma_cqp_commit_fpm_val_cmd - commit fpm values in hw
 981  * @dev: hardware control device structure
 982  * @val_mem: buffer with fpm values
 983  * @hmc_fn_id: function id for fpm
 984  */
 985 int irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev,
 986                                  struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
 987 {
 988         struct irdma_cqp_request *cqp_request;
 989         struct cqp_cmds_info *cqp_info;
 990         struct irdma_pci_f *rf = dev_to_rf(dev);
 991         int status;
 992
 993         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 994         if (!cqp_request)
 995                 return -ENOMEM;
 996
 997         cqp_info = &cqp_request->info;
 998         cqp_request->param = NULL;
 999         cqp_info->in.u.commit_fpm_val.cqp = dev->cqp;
1000         cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa;
1001         cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va;
1002         cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id;
1003         cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL;
1004         cqp_info->post_sq = 1;
1005         cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request;
1006
1007         status = irdma_handle_cqp_op(rf, cqp_request);
1008         irdma_put_cqp_request(&rf->cqp, cqp_request);
1009
1010         return status;
1011 }
1012
1013 /**
1014  * irdma_cqp_cq_create_cmd - create a cq for the cqp
1015  * @dev: device pointer
1016  * @cq: pointer to created cq
1017  */
1018 int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1019 {
1020         struct irdma_pci_f *rf = dev_to_rf(dev);
1021         struct irdma_cqp *iwcqp = &rf->cqp;
1022         struct irdma_cqp_request *cqp_request;
1023         struct cqp_cmds_info *cqp_info;
1024         int status;
1025
1026         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1027         if (!cqp_request)
1028                 return -ENOMEM;
1029
1030         cqp_info = &cqp_request->info;
1031         cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
1032         cqp_info->post_sq = 1;
1033         cqp_info->in.u.cq_create.cq = cq;
1034         cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1035
1036         status = irdma_handle_cqp_op(rf, cqp_request);
1037         irdma_put_cqp_request(iwcqp, cqp_request);
1038
1039         return status;
1040 }
1041
1042 /**
1043  * irdma_cqp_qp_create_cmd - create a qp for the cqp
1044  * @dev: device pointer
1045  * @qp: pointer to created qp
1046  */
1047 int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1048 {
1049         struct irdma_pci_f *rf = dev_to_rf(dev);
1050         struct irdma_cqp *iwcqp = &rf->cqp;
1051         struct irdma_cqp_request *cqp_request;
1052         struct cqp_cmds_info *cqp_info;
1053         struct irdma_create_qp_info *qp_info;
1054         int status;
1055
1056         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1057         if (!cqp_request)
1058                 return -ENOMEM;
1059
1060         cqp_info = &cqp_request->info;
1061         qp_info = &cqp_request->info.in.u.qp_create.info;
1062         memset(qp_info, 0, sizeof(*qp_info));
1063         qp_info->cq_num_valid = true;
1064         qp_info->next_iwarp_state = IRDMA_QP_STATE_RTS;
1065         cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
1066         cqp_info->post_sq = 1;
1067         cqp_info->in.u.qp_create.qp = qp;
1068         cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
1069
1070         status = irdma_handle_cqp_op(rf, cqp_request);
1071         irdma_put_cqp_request(iwcqp, cqp_request);
1072
1073         return status;
1074 }
1075
1076 /**
1077  * irdma_dealloc_push_page - free a push page for qp
1078  * @rf: RDMA PCI function
1079  * @qp: hardware control qp
1080  */
1081 static void irdma_dealloc_push_page(struct irdma_pci_f *rf,
1082                                     struct irdma_sc_qp *qp)
1083 {
1084         struct irdma_cqp_request *cqp_request;
1085         struct cqp_cmds_info *cqp_info;
1086         int status;
1087
1088         if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX)
1089                 return;
1090
1091         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
1092         if (!cqp_request)
1093                 return;
1094
1095         cqp_info = &cqp_request->info;
1096         cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
1097         cqp_info->post_sq = 1;
1098         cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
1099         cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
1100         cqp_info->in.u.manage_push_page.info.free_page = 1;
1101         cqp_info->in.u.manage_push_page.info.push_page_type = 0;
1102         cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp;
1103         cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
1104         status = irdma_handle_cqp_op(rf, cqp_request);
1105         if (!status)
1106                 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
1107         irdma_put_cqp_request(&rf->cqp, cqp_request);
1108 }
1109
1110 /**
1111  * irdma_free_qp_rsrc - free up memory resources for qp
1112  * @iwqp: qp ptr (user or kernel)
1113  */
1114 void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
1115 {
1116         struct irdma_device *iwdev = iwqp->iwdev;
1117         struct irdma_pci_f *rf = iwdev->rf;
1118         u32 qp_num = iwqp->ibqp.qp_num;
1119
1120         irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
1121         irdma_dealloc_push_page(rf, &iwqp->sc_qp);
1122         if (iwqp->sc_qp.vsi) {
1123                 irdma_qp_rem_qos(&iwqp->sc_qp);
1124                 iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
1125                                            iwqp->sc_qp.user_pri);
1126         }
1127
1128         if (qp_num > 2)
1129                 irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
1130         dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size,
1131                           iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa);
1132         iwqp->q2_ctx_mem.va = NULL;
1133         dma_free_coherent(rf->sc_dev.hw->device, iwqp->kqp.dma_mem.size,
1134                           iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa);
1135         iwqp->kqp.dma_mem.va = NULL;
1136         kfree(iwqp->kqp.sq_wrid_mem);
1137         kfree(iwqp->kqp.rq_wrid_mem);
1138 }
1139
1140 /**
1141  * irdma_cq_wq_destroy - send cq destroy cqp
1142  * @rf: RDMA PCI function
1143  * @cq: hardware control cq
1144  */
1145 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
1146 {
1147         struct irdma_cqp_request *cqp_request;
1148         struct cqp_cmds_info *cqp_info;
1149
1150         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1151         if (!cqp_request)
1152                 return;
1153
1154         cqp_info = &cqp_request->info;
1155         cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY;
1156         cqp_info->post_sq = 1;
1157         cqp_info->in.u.cq_destroy.cq = cq;
1158         cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1159
1160         irdma_handle_cqp_op(rf, cqp_request);
1161         irdma_put_cqp_request(&rf->cqp, cqp_request);
1162 }
1163
1164 /**
1165  * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait
1166  * @cqp_request: modify QP completion
1167  */
1168 static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request)
1169 {
1170         struct cqp_cmds_info *cqp_info;
1171         struct irdma_qp *iwqp;
1172
1173         cqp_info = &cqp_request->info;
1174         iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp;
1175         atomic_dec(&iwqp->hw_mod_qp_pend);
1176         wake_up(&iwqp->mod_qp_waitq);
1177 }
1178
1179 /**
1180  * irdma_hw_modify_qp - setup cqp for modify qp
1181  * @iwdev: RDMA device
1182  * @iwqp: qp ptr (user or kernel)
1183  * @info: info for modify qp
1184  * @wait: flag to wait or not for modify qp completion
1185  */
1186 int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,
1187                        struct irdma_modify_qp_info *info, bool wait)
1188 {
1189         int status;
1190         struct irdma_pci_f *rf = iwdev->rf;
1191         struct irdma_cqp_request *cqp_request;
1192         struct cqp_cmds_info *cqp_info;
1193         struct irdma_modify_qp_info *m_info;
1194
1195         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1196         if (!cqp_request)
1197                 return -ENOMEM;
1198
1199         if (!wait) {
1200                 cqp_request->callback_fcn = irdma_hw_modify_qp_callback;
1201                 atomic_inc(&iwqp->hw_mod_qp_pend);
1202         }
1203         cqp_info = &cqp_request->info;
1204         m_info = &cqp_info->in.u.qp_modify.info;
1205         memcpy(m_info, info, sizeof(*m_info));
1206         cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1207         cqp_info->post_sq = 1;
1208         cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1209         cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1210         status = irdma_handle_cqp_op(rf, cqp_request);
1211         irdma_put_cqp_request(&rf->cqp, cqp_request);
1212         if (status) {
1213                 if (rdma_protocol_roce(&iwdev->ibdev, 1))
1214                         return status;
1215
1216                 switch (m_info->next_iwarp_state) {
1217                         struct irdma_gen_ae_info ae_info;
1218
1219                 case IRDMA_QP_STATE_RTS:
1220                 case IRDMA_QP_STATE_IDLE:
1221                 case IRDMA_QP_STATE_TERMINATE:
1222                 case IRDMA_QP_STATE_CLOSING:
1223                         if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE)
1224                                 irdma_send_reset(iwqp->cm_node);
1225                         else
1226                                 iwqp->sc_qp.term_flags = IRDMA_TERM_DONE;
1227                         if (!wait) {
1228                                 ae_info.ae_code = IRDMA_AE_BAD_CLOSE;
1229                                 ae_info.ae_src = 0;
1230                                 irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false);
1231                         } else {
1232                                 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp,
1233                                                                               wait);
1234                                 if (!cqp_request)
1235                                         return -ENOMEM;
1236
1237                                 cqp_info = &cqp_request->info;
1238                                 m_info = &cqp_info->in.u.qp_modify.info;
1239                                 memcpy(m_info, info, sizeof(*m_info));
1240                                 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1241                                 cqp_info->post_sq = 1;
1242                                 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1243                                 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1244                                 m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR;
1245                                 m_info->reset_tcp_conn = true;
1246                                 irdma_handle_cqp_op(rf, cqp_request);
1247                                 irdma_put_cqp_request(&rf->cqp, cqp_request);
1248                         }
1249                         break;
1250                 case IRDMA_QP_STATE_ERROR:
1251                 default:
1252                         break;
1253                 }
1254         }
1255
1256         return status;
1257 }
1258
1259 /**
1260  * irdma_cqp_cq_destroy_cmd - destroy the cqp cq
1261  * @dev: device pointer
1262  * @cq: pointer to cq
1263  */
1264 void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1265 {
1266         struct irdma_pci_f *rf = dev_to_rf(dev);
1267
1268         irdma_cq_wq_destroy(rf, cq);
1269 }
1270
1271 /**
1272  * irdma_cqp_qp_destroy_cmd - destroy the cqp
1273  * @dev: device pointer
1274  * @qp: pointer to qp
1275  */
1276 int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1277 {
1278         struct irdma_pci_f *rf = dev_to_rf(dev);
1279         struct irdma_cqp *iwcqp = &rf->cqp;
1280         struct irdma_cqp_request *cqp_request;
1281         struct cqp_cmds_info *cqp_info;
1282         int status;
1283
1284         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1285         if (!cqp_request)
1286                 return -ENOMEM;
1287
1288         cqp_info = &cqp_request->info;
1289         memset(cqp_info, 0, sizeof(*cqp_info));
1290         cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY;
1291         cqp_info->post_sq = 1;
1292         cqp_info->in.u.qp_destroy.qp = qp;
1293         cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
1294         cqp_info->in.u.qp_destroy.remove_hash_idx = true;
1295
1296         status = irdma_handle_cqp_op(rf, cqp_request);
1297         irdma_put_cqp_request(&rf->cqp, cqp_request);
1298
1299         return status;
1300 }
1301
1302 /**
1303  * irdma_ieq_mpa_crc_ae - generate AE for crc error
1304  * @dev: hardware control device structure
1305  * @qp: hardware control qp
1306  */
1307 void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1308 {
1309         struct irdma_gen_ae_info info = {};
1310         struct irdma_pci_f *rf = dev_to_rf(dev);
1311
1312         ibdev_dbg(&rf->iwdev->ibdev, "AEQ: Generate MPA CRC AE\n");
1313         info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR;
1314         info.ae_src = IRDMA_AE_SOURCE_RQ;
1315         irdma_gen_ae(rf, qp, &info, false);
1316 }
1317
1318 /**
1319  * irdma_init_hash_desc - initialize hash for crc calculation
1320  * @desc: cryption type
1321  */
1322 int irdma_init_hash_desc(struct shash_desc **desc)
1323 {
1324         struct crypto_shash *tfm;
1325         struct shash_desc *tdesc;
1326
1327         tfm = crypto_alloc_shash("crc32c", 0, 0);
1328         if (IS_ERR(tfm))
1329                 return -EINVAL;
1330
1331         tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
1332                         GFP_KERNEL);
1333         if (!tdesc) {
1334                 crypto_free_shash(tfm);
1335                 return -EINVAL;
1336         }
1337
1338         tdesc->tfm = tfm;
1339         *desc = tdesc;
1340
1341         return 0;
1342 }
1343
1344 /**
1345  * irdma_free_hash_desc - free hash desc
1346  * @desc: to be freed
1347  */
1348 void irdma_free_hash_desc(struct shash_desc *desc)
1349 {
1350         if (desc) {
1351                 crypto_free_shash(desc->tfm);
1352                 kfree(desc);
1353         }
1354 }
1355
1356 /**
1357  * irdma_ieq_check_mpacrc - check if mpa crc is OK
1358  * @desc: desc for hash
1359  * @addr: address of buffer for crc
1360  * @len: length of buffer
1361  * @val: value to be compared
1362  */
1363 int irdma_ieq_check_mpacrc(struct shash_desc *desc, void *addr, u32 len,
1364                            u32 val)
1365 {
1366         u32 crc = 0;
1367         int ret;
1368         int ret_code = 0;
1369
1370         crypto_shash_init(desc);
1371         ret = crypto_shash_update(desc, addr, len);
1372         if (!ret)
1373                 crypto_shash_final(desc, (u8 *)&crc);
1374         if (crc != val)
1375                 ret_code = -EINVAL;
1376
1377         return ret_code;
1378 }
1379
1380 /**
1381  * irdma_ieq_get_qp - get qp based on quad in puda buffer
1382  * @dev: hardware control device structure
1383  * @buf: receive puda buffer on exception q
1384  */
1385 struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
1386                                      struct irdma_puda_buf *buf)
1387 {
1388         struct irdma_qp *iwqp;
1389         struct irdma_cm_node *cm_node;
1390         struct irdma_device *iwdev = buf->vsi->back_vsi;
1391         u32 loc_addr[4] = {};
1392         u32 rem_addr[4] = {};
1393         u16 loc_port, rem_port;
1394         struct ipv6hdr *ip6h;
1395         struct iphdr *iph = (struct iphdr *)buf->iph;
1396         struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1397
1398         if (iph->version == 4) {
1399                 loc_addr[0] = ntohl(iph->daddr);
1400                 rem_addr[0] = ntohl(iph->saddr);
1401         } else {
1402                 ip6h = (struct ipv6hdr *)buf->iph;
1403                 irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
1404                 irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
1405         }
1406         loc_port = ntohs(tcph->dest);
1407         rem_port = ntohs(tcph->source);
1408         cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
1409                                   loc_addr, buf->vlan_valid ? buf->vlan_id : 0xFFFF);
1410         if (!cm_node)
1411                 return NULL;
1412
1413         iwqp = cm_node->iwqp;
1414         irdma_rem_ref_cm_node(cm_node);
1415
1416         return &iwqp->sc_qp;
1417 }
1418
1419 /**
1420  * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs
1421  * @qp: qp ptr
1422  */
1423 void irdma_send_ieq_ack(struct irdma_sc_qp *qp)
1424 {
1425         struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node;
1426         struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf;
1427         struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1428
1429         cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum;
1430         cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
1431
1432         irdma_send_ack(cm_node);
1433 }
1434
1435 /**
1436  * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer
1437  * @qp: qp pointer
1438  * @ah_info: AH info pointer
1439  */
1440 void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
1441                                 struct irdma_ah_info *ah_info)
1442 {
1443         struct irdma_puda_buf *buf = qp->pfpdu.ah_buf;
1444         struct iphdr *iph;
1445         struct ipv6hdr *ip6h;
1446
1447         memset(ah_info, 0, sizeof(*ah_info));
1448         ah_info->do_lpbk = true;
1449         ah_info->vlan_tag = buf->vlan_id;
1450         ah_info->insert_vlan_tag = buf->vlan_valid;
1451         ah_info->ipv4_valid = buf->ipv4;
1452         ah_info->vsi = qp->vsi;
1453
1454         if (buf->smac_valid)
1455                 ether_addr_copy(ah_info->mac_addr, buf->smac);
1456
1457         if (buf->ipv4) {
1458                 ah_info->ipv4_valid = true;
1459                 iph = (struct iphdr *)buf->iph;
1460                 ah_info->hop_ttl = iph->ttl;
1461                 ah_info->tc_tos = iph->tos;
1462                 ah_info->dest_ip_addr[0] = ntohl(iph->daddr);
1463                 ah_info->src_ip_addr[0] = ntohl(iph->saddr);
1464         } else {
1465                 ip6h = (struct ipv6hdr *)buf->iph;
1466                 ah_info->hop_ttl = ip6h->hop_limit;
1467                 ah_info->tc_tos = ip6h->priority;
1468                 irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
1469                                     ip6h->daddr.in6_u.u6_addr32);
1470                 irdma_copy_ip_ntohl(ah_info->src_ip_addr,
1471                                     ip6h->saddr.in6_u.u6_addr32);
1472         }
1473
1474         ah_info->dst_arpindex = irdma_arp_table(dev_to_rf(qp->dev),
1475                                                 ah_info->dest_ip_addr,
1476                                                 ah_info->ipv4_valid,
1477                                                 NULL, IRDMA_ARP_RESOLVE);
1478 }
1479
1480 /**
1481  * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer
1482  * @buf: puda to update
1483  * @len: length of buffer
1484  * @seqnum: seq number for tcp
1485  */
1486 static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf,
1487                                              u16 len, u32 seqnum)
1488 {
1489         struct tcphdr *tcph;
1490         struct iphdr *iph;
1491         u16 iphlen;
1492         u16 pktsize;
1493         u8 *addr = buf->mem.va;
1494
1495         iphlen = (buf->ipv4) ? 20 : 40;
1496         iph = (struct iphdr *)(addr + buf->maclen);
1497         tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
1498         pktsize = len + buf->tcphlen + iphlen;
1499         iph->tot_len = htons(pktsize);
1500         tcph->seq = htonl(seqnum);
1501 }
1502
1503 /**
1504  * irdma_ieq_update_tcpip_info - update tcpip in the buffer
1505  * @buf: puda to update
1506  * @len: length of buffer
1507  * @seqnum: seq number for tcp
1508  */
1509 void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len,
1510                                  u32 seqnum)
1511 {
1512         struct tcphdr *tcph;
1513         u8 *addr;
1514
1515         if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1516                 return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum);
1517
1518         addr = buf->mem.va;
1519         tcph = (struct tcphdr *)addr;
1520         tcph->seq = htonl(seqnum);
1521 }
1522
1523 /**
1524  * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda
1525  * buffer
1526  * @info: to get information
1527  * @buf: puda buffer
1528  */
1529 static int irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1530                                           struct irdma_puda_buf *buf)
1531 {
1532         struct iphdr *iph;
1533         struct ipv6hdr *ip6h;
1534         struct tcphdr *tcph;
1535         u16 iphlen;
1536         u16 pkt_len;
1537         u8 *mem = buf->mem.va;
1538         struct ethhdr *ethh = buf->mem.va;
1539
1540         if (ethh->h_proto == htons(0x8100)) {
1541                 info->vlan_valid = true;
1542                 buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) &
1543                                VLAN_VID_MASK;
1544         }
1545
1546         buf->maclen = (info->vlan_valid) ? 18 : 14;
1547         iphlen = (info->l3proto) ? 40 : 20;
1548         buf->ipv4 = (info->l3proto) ? false : true;
1549         buf->iph = mem + buf->maclen;
1550         iph = (struct iphdr *)buf->iph;
1551         buf->tcph = buf->iph + iphlen;
1552         tcph = (struct tcphdr *)buf->tcph;
1553
1554         if (buf->ipv4) {
1555                 pkt_len = ntohs(iph->tot_len);
1556         } else {
1557                 ip6h = (struct ipv6hdr *)buf->iph;
1558                 pkt_len = ntohs(ip6h->payload_len) + iphlen;
1559         }
1560
1561         buf->totallen = pkt_len + buf->maclen;
1562
1563         if (info->payload_len < buf->totallen) {
1564                 ibdev_dbg(to_ibdev(buf->vsi->dev),
1565                           "ERR: payload_len = 0x%x totallen expected0x%x\n",
1566                           info->payload_len, buf->totallen);
1567                 return -EINVAL;
1568         }
1569
1570         buf->tcphlen = tcph->doff << 2;
1571         buf->datalen = pkt_len - iphlen - buf->tcphlen;
1572         buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1573         buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
1574         buf->seqnum = ntohl(tcph->seq);
1575
1576         return 0;
1577 }
1578
1579 /**
1580  * irdma_puda_get_tcpip_info - get tcpip info from puda buffer
1581  * @info: to get information
1582  * @buf: puda buffer
1583  */
1584 int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1585                               struct irdma_puda_buf *buf)
1586 {
1587         struct tcphdr *tcph;
1588         u32 pkt_len;
1589         u8 *mem;
1590
1591         if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1592                 return irdma_gen1_puda_get_tcpip_info(info, buf);
1593
1594         mem = buf->mem.va;
1595         buf->vlan_valid = info->vlan_valid;
1596         if (info->vlan_valid)
1597                 buf->vlan_id = info->vlan;
1598
1599         buf->ipv4 = info->ipv4;
1600         if (buf->ipv4)
1601                 buf->iph = mem + IRDMA_IPV4_PAD;
1602         else
1603                 buf->iph = mem;
1604
1605         buf->tcph = mem + IRDMA_TCP_OFFSET;
1606         tcph = (struct tcphdr *)buf->tcph;
1607         pkt_len = info->payload_len;
1608         buf->totallen = pkt_len;
1609         buf->tcphlen = tcph->doff << 2;
1610         buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen;
1611         buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1612         buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen;
1613         buf->seqnum = ntohl(tcph->seq);
1614
1615         if (info->smac_valid) {
1616                 ether_addr_copy(buf->smac, info->smac);
1617                 buf->smac_valid = true;
1618         }
1619
1620         return 0;
1621 }
1622
1623 /**
1624  * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats
1625  * @t: timer_list pointer
1626  */
1627 static void irdma_hw_stats_timeout(struct timer_list *t)
1628 {
1629         struct irdma_vsi_pestat *pf_devstat =
1630                 from_timer(pf_devstat, t, stats_timer);
1631         struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi;
1632
1633         if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1634                 irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat);
1635         else
1636                 irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false);
1637
1638         mod_timer(&pf_devstat->stats_timer,
1639                   jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1640 }
1641
1642 /**
1643  * irdma_hw_stats_start_timer - Start periodic stats timer
1644  * @vsi: vsi structure pointer
1645  */
1646 void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi)
1647 {
1648         struct irdma_vsi_pestat *devstat = vsi->pestat;
1649
1650         timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0);
1651         mod_timer(&devstat->stats_timer,
1652                   jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1653 }
1654
1655 /**
1656  * irdma_hw_stats_stop_timer - Delete periodic stats timer
1657  * @vsi: pointer to vsi structure
1658  */
1659 void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi)
1660 {
1661         struct irdma_vsi_pestat *devstat = vsi->pestat;
1662
1663         del_timer_sync(&devstat->stats_timer);
1664 }
1665
1666 /**
1667  * irdma_process_stats - Checking for wrap and update stats
1668  * @pestat: stats structure pointer
1669  */
1670 static inline void irdma_process_stats(struct irdma_vsi_pestat *pestat)
1671 {
1672         sc_vsi_update_stats(pestat->vsi);
1673 }
1674
1675 /**
1676  * irdma_cqp_gather_stats_gen1 - Gather stats
1677  * @dev: pointer to device structure
1678  * @pestat: statistics structure
1679  */
1680 void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev,
1681                                  struct irdma_vsi_pestat *pestat)
1682 {
1683         struct irdma_gather_stats *gather_stats =
1684                 pestat->gather_info.gather_stats_va;
1685         u32 stats_inst_offset_32;
1686         u32 stats_inst_offset_64;
1687
1688         stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ?
1689                                        pestat->gather_info.stats_inst_index :
1690                                        pestat->hw->hmc.hmc_fn_id;
1691         stats_inst_offset_32 *= 4;
1692         stats_inst_offset_64 = stats_inst_offset_32 * 2;
1693
1694         gather_stats->rxvlanerr =
1695                 rd32(dev->hw,
1696                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_RXVLANERR]
1697                      + stats_inst_offset_32);
1698         gather_stats->ip4rxdiscard =
1699                 rd32(dev->hw,
1700                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXDISCARD]
1701                      + stats_inst_offset_32);
1702         gather_stats->ip4rxtrunc =
1703                 rd32(dev->hw,
1704                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXTRUNC]
1705                      + stats_inst_offset_32);
1706         gather_stats->ip4txnoroute =
1707                 rd32(dev->hw,
1708                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE]
1709                      + stats_inst_offset_32);
1710         gather_stats->ip6rxdiscard =
1711                 rd32(dev->hw,
1712                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXDISCARD]
1713                      + stats_inst_offset_32);
1714         gather_stats->ip6rxtrunc =
1715                 rd32(dev->hw,
1716                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXTRUNC]
1717                      + stats_inst_offset_32);
1718         gather_stats->ip6txnoroute =
1719                 rd32(dev->hw,
1720                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE]
1721                      + stats_inst_offset_32);
1722         gather_stats->tcprtxseg =
1723                 rd32(dev->hw,
1724                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRTXSEG]
1725                      + stats_inst_offset_32);
1726         gather_stats->tcprxopterr =
1727                 rd32(dev->hw,
1728                      dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRXOPTERR]
1729                      + stats_inst_offset_32);
1730
1731         gather_stats->ip4rxocts =
1732                 rd64(dev->hw,
1733                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXOCTS]
1734                      + stats_inst_offset_64);
1735         gather_stats->ip4rxpkts =
1736                 rd64(dev->hw,
1737                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXPKTS]
1738                      + stats_inst_offset_64);
1739         gather_stats->ip4txfrag =
1740                 rd64(dev->hw,
1741                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXFRAGS]
1742                      + stats_inst_offset_64);
1743         gather_stats->ip4rxmcpkts =
1744                 rd64(dev->hw,
1745                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS]
1746                      + stats_inst_offset_64);
1747         gather_stats->ip4txocts =
1748                 rd64(dev->hw,
1749                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXOCTS]
1750                      + stats_inst_offset_64);
1751         gather_stats->ip4txpkts =
1752                 rd64(dev->hw,
1753                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXPKTS]
1754                      + stats_inst_offset_64);
1755         gather_stats->ip4txfrag =
1756                 rd64(dev->hw,
1757                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXFRAGS]
1758                      + stats_inst_offset_64);
1759         gather_stats->ip4txmcpkts =
1760                 rd64(dev->hw,
1761                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS]
1762                      + stats_inst_offset_64);
1763         gather_stats->ip6rxocts =
1764                 rd64(dev->hw,
1765                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXOCTS]
1766                      + stats_inst_offset_64);
1767         gather_stats->ip6rxpkts =
1768                 rd64(dev->hw,
1769                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXPKTS]
1770                      + stats_inst_offset_64);
1771         gather_stats->ip6txfrags =
1772                 rd64(dev->hw,
1773                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXFRAGS]
1774                      + stats_inst_offset_64);
1775         gather_stats->ip6rxmcpkts =
1776                 rd64(dev->hw,
1777                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS]
1778                      + stats_inst_offset_64);
1779         gather_stats->ip6txocts =
1780                 rd64(dev->hw,
1781                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXOCTS]
1782                      + stats_inst_offset_64);
1783         gather_stats->ip6txpkts =
1784                 rd64(dev->hw,
1785                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXPKTS]
1786                      + stats_inst_offset_64);
1787         gather_stats->ip6txfrags =
1788                 rd64(dev->hw,
1789                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXFRAGS]
1790                      + stats_inst_offset_64);
1791         gather_stats->ip6txmcpkts =
1792                 rd64(dev->hw,
1793                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS]
1794                      + stats_inst_offset_64);
1795         gather_stats->tcprxsegs =
1796                 rd64(dev->hw,
1797                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPRXSEGS]
1798                      + stats_inst_offset_64);
1799         gather_stats->tcptxsegs =
1800                 rd64(dev->hw,
1801                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPTXSEG]
1802                      + stats_inst_offset_64);
1803         gather_stats->rdmarxrds =
1804                 rd64(dev->hw,
1805                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXRDS]
1806                      + stats_inst_offset_64);
1807         gather_stats->rdmarxsnds =
1808                 rd64(dev->hw,
1809                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXSNDS]
1810                      + stats_inst_offset_64);
1811         gather_stats->rdmarxwrs =
1812                 rd64(dev->hw,
1813                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXWRS]
1814                      + stats_inst_offset_64);
1815         gather_stats->rdmatxrds =
1816                 rd64(dev->hw,
1817                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXRDS]
1818                      + stats_inst_offset_64);
1819         gather_stats->rdmatxsnds =
1820                 rd64(dev->hw,
1821                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXSNDS]
1822                      + stats_inst_offset_64);
1823         gather_stats->rdmatxwrs =
1824                 rd64(dev->hw,
1825                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXWRS]
1826                      + stats_inst_offset_64);
1827         gather_stats->rdmavbn =
1828                 rd64(dev->hw,
1829                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVBND]
1830                      + stats_inst_offset_64);
1831         gather_stats->rdmavinv =
1832                 rd64(dev->hw,
1833                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVINV]
1834                      + stats_inst_offset_64);
1835         gather_stats->udprxpkts =
1836                 rd64(dev->hw,
1837                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPRXPKTS]
1838                      + stats_inst_offset_64);
1839         gather_stats->udptxpkts =
1840                 rd64(dev->hw,
1841                      dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPTXPKTS]
1842                      + stats_inst_offset_64);
1843
1844         irdma_process_stats(pestat);
1845 }
1846
1847 /**
1848  * irdma_process_cqp_stats - Checking for wrap and update stats
1849  * @cqp_request: cqp_request structure pointer
1850  */
1851 static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request)
1852 {
1853         struct irdma_vsi_pestat *pestat = cqp_request->param;
1854
1855         irdma_process_stats(pestat);
1856 }
1857
1858 /**
1859  * irdma_cqp_gather_stats_cmd - Gather stats
1860  * @dev: pointer to device structure
1861  * @pestat: pointer to stats info
1862  * @wait: flag to wait or not wait for stats
1863  */
1864 int irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev,
1865                                struct irdma_vsi_pestat *pestat, bool wait)
1866
1867 {
1868         struct irdma_pci_f *rf = dev_to_rf(dev);
1869         struct irdma_cqp *iwcqp = &rf->cqp;
1870         struct irdma_cqp_request *cqp_request;
1871         struct cqp_cmds_info *cqp_info;
1872         int status;
1873
1874         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1875         if (!cqp_request)
1876                 return -ENOMEM;
1877
1878         cqp_info = &cqp_request->info;
1879         memset(cqp_info, 0, sizeof(*cqp_info));
1880         cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER;
1881         cqp_info->post_sq = 1;
1882         cqp_info->in.u.stats_gather.info = pestat->gather_info;
1883         cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request;
1884         cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp;
1885         cqp_request->param = pestat;
1886         if (!wait)
1887                 cqp_request->callback_fcn = irdma_process_cqp_stats;
1888         status = irdma_handle_cqp_op(rf, cqp_request);
1889         if (wait)
1890                 irdma_process_stats(pestat);
1891         irdma_put_cqp_request(&rf->cqp, cqp_request);
1892
1893         return status;
1894 }
1895
1896 /**
1897  * irdma_cqp_stats_inst_cmd - Allocate/free stats instance
1898  * @vsi: pointer to vsi structure
1899  * @cmd: command to allocate or free
1900  * @stats_info: pointer to allocate stats info
1901  */
1902 int irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd,
1903                              struct irdma_stats_inst_info *stats_info)
1904 {
1905         struct irdma_pci_f *rf = dev_to_rf(vsi->dev);
1906         struct irdma_cqp *iwcqp = &rf->cqp;
1907         struct irdma_cqp_request *cqp_request;
1908         struct cqp_cmds_info *cqp_info;
1909         int status;
1910         bool wait = false;
1911
1912         if (cmd == IRDMA_OP_STATS_ALLOCATE)
1913                 wait = true;
1914         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1915         if (!cqp_request)
1916                 return -ENOMEM;
1917
1918         cqp_info = &cqp_request->info;
1919         memset(cqp_info, 0, sizeof(*cqp_info));
1920         cqp_info->cqp_cmd = cmd;
1921         cqp_info->post_sq = 1;
1922         cqp_info->in.u.stats_manage.info = *stats_info;
1923         cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request;
1924         cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp;
1925         status = irdma_handle_cqp_op(rf, cqp_request);
1926         if (wait)
1927                 stats_info->stats_idx = cqp_request->compl_info.op_ret_val;
1928         irdma_put_cqp_request(iwcqp, cqp_request);
1929
1930         return status;
1931 }
1932
1933 /**
1934  * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0
1935  * @dev: pointer to device info
1936  * @sc_ceq: pointer to ceq structure
1937  * @op: Create or Destroy
1938  */
1939 int irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_ceq *sc_ceq,
1940                       u8 op)
1941 {
1942         struct irdma_cqp_request *cqp_request;
1943         struct cqp_cmds_info *cqp_info;
1944         struct irdma_pci_f *rf = dev_to_rf(dev);
1945         int status;
1946
1947         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1948         if (!cqp_request)
1949                 return -ENOMEM;
1950
1951         cqp_info = &cqp_request->info;
1952         cqp_info->post_sq = 1;
1953         cqp_info->cqp_cmd = op;
1954         cqp_info->in.u.ceq_create.ceq = sc_ceq;
1955         cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request;
1956
1957         status = irdma_handle_cqp_op(rf, cqp_request);
1958         irdma_put_cqp_request(&rf->cqp, cqp_request);
1959
1960         return status;
1961 }
1962
1963 /**
1964  * irdma_cqp_aeq_cmd - Create/Destroy AEQ
1965  * @dev: pointer to device info
1966  * @sc_aeq: pointer to aeq structure
1967  * @op: Create or Destroy
1968  */
1969 int irdma_cqp_aeq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_aeq *sc_aeq,
1970                       u8 op)
1971 {
1972         struct irdma_cqp_request *cqp_request;
1973         struct cqp_cmds_info *cqp_info;
1974         struct irdma_pci_f *rf = dev_to_rf(dev);
1975         int status;
1976
1977         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1978         if (!cqp_request)
1979                 return -ENOMEM;
1980
1981         cqp_info = &cqp_request->info;
1982         cqp_info->post_sq = 1;
1983         cqp_info->cqp_cmd = op;
1984         cqp_info->in.u.aeq_create.aeq = sc_aeq;
1985         cqp_info->in.u.aeq_create.scratch = (uintptr_t)cqp_request;
1986
1987         status = irdma_handle_cqp_op(rf, cqp_request);
1988         irdma_put_cqp_request(&rf->cqp, cqp_request);
1989
1990         return status;
1991 }
1992
1993 /**
1994  * irdma_cqp_ws_node_cmd - Add/modify/delete ws node
1995  * @dev: pointer to device structure
1996  * @cmd: Add, modify or delete
1997  * @node_info: pointer to ws node info
1998  */
1999 int irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd,
2000                           struct irdma_ws_node_info *node_info)
2001 {
2002         struct irdma_pci_f *rf = dev_to_rf(dev);
2003         struct irdma_cqp *iwcqp = &rf->cqp;
2004         struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
2005         struct irdma_cqp_request *cqp_request;
2006         struct cqp_cmds_info *cqp_info;
2007         int status;
2008         bool poll;
2009
2010         if (!rf->sc_dev.ceq_valid)
2011                 poll = true;
2012         else
2013                 poll = false;
2014
2015         cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, !poll);
2016         if (!cqp_request)
2017                 return -ENOMEM;
2018
2019         cqp_info = &cqp_request->info;
2020         memset(cqp_info, 0, sizeof(*cqp_info));
2021         cqp_info->cqp_cmd = cmd;
2022         cqp_info->post_sq = 1;
2023         cqp_info->in.u.ws_node.info = *node_info;
2024         cqp_info->in.u.ws_node.cqp = cqp;
2025         cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request;
2026         status = irdma_handle_cqp_op(rf, cqp_request);
2027         if (status)
2028                 goto exit;
2029
2030         if (poll) {
2031                 struct irdma_ccq_cqe_info compl_info;
2032
2033                 status = irdma_sc_poll_for_cqp_op_done(cqp, IRDMA_CQP_OP_WORK_SCHED_NODE,
2034                                                        &compl_info);
2035                 node_info->qs_handle = compl_info.op_ret_val;
2036                 ibdev_dbg(&rf->iwdev->ibdev, "DCB: opcode=%d, compl_info.retval=%d\n",
2037                           compl_info.op_code, compl_info.op_ret_val);
2038         } else {
2039                 node_info->qs_handle = cqp_request->compl_info.op_ret_val;
2040         }
2041
2042 exit:
2043         irdma_put_cqp_request(&rf->cqp, cqp_request);
2044
2045         return status;
2046 }
2047
2048 /**
2049  * irdma_ah_cqp_op - perform an AH cqp operation
2050  * @rf: RDMA PCI function
2051  * @sc_ah: address handle
2052  * @cmd: AH operation
2053  * @wait: wait if true
2054  * @callback_fcn: Callback function on CQP op completion
2055  * @cb_param: parameter for callback function
2056  *
2057  * returns errno
2058  */
2059 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
2060                     bool wait,
2061                     void (*callback_fcn)(struct irdma_cqp_request *),
2062                     void *cb_param)
2063 {
2064         struct irdma_cqp_request *cqp_request;
2065         struct cqp_cmds_info *cqp_info;
2066         int status;
2067
2068         if (cmd != IRDMA_OP_AH_CREATE && cmd != IRDMA_OP_AH_DESTROY)
2069                 return -EINVAL;
2070
2071         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
2072         if (!cqp_request)
2073                 return -ENOMEM;
2074
2075         cqp_info = &cqp_request->info;
2076         cqp_info->cqp_cmd = cmd;
2077         cqp_info->post_sq = 1;
2078         if (cmd == IRDMA_OP_AH_CREATE) {
2079                 cqp_info->in.u.ah_create.info = sc_ah->ah_info;
2080                 cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request;
2081                 cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp;
2082         } else if (cmd == IRDMA_OP_AH_DESTROY) {
2083                 cqp_info->in.u.ah_destroy.info = sc_ah->ah_info;
2084                 cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request;
2085                 cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp;
2086         }
2087
2088         if (!wait) {
2089                 cqp_request->callback_fcn = callback_fcn;
2090                 cqp_request->param = cb_param;
2091         }
2092         status = irdma_handle_cqp_op(rf, cqp_request);
2093         irdma_put_cqp_request(&rf->cqp, cqp_request);
2094
2095         if (status)
2096                 return -ENOMEM;
2097
2098         if (wait)
2099                 sc_ah->ah_info.ah_valid = (cmd == IRDMA_OP_AH_CREATE);
2100
2101         return 0;
2102 }
2103
2104 /**
2105  * irdma_ieq_ah_cb - callback after creation of AH for IEQ
2106  * @cqp_request: pointer to cqp_request of create AH
2107  */
2108 static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request)
2109 {
2110         struct irdma_sc_qp *qp = cqp_request->param;
2111         struct irdma_sc_ah *sc_ah = qp->pfpdu.ah;
2112         unsigned long flags;
2113
2114         spin_lock_irqsave(&qp->pfpdu.lock, flags);
2115         if (!cqp_request->compl_info.op_ret_val) {
2116                 sc_ah->ah_info.ah_valid = true;
2117                 irdma_ieq_process_fpdus(qp, qp->vsi->ieq);
2118         } else {
2119                 sc_ah->ah_info.ah_valid = false;
2120                 irdma_ieq_cleanup_qp(qp->vsi->ieq, qp);
2121         }
2122         spin_unlock_irqrestore(&qp->pfpdu.lock, flags);
2123 }
2124
2125 /**
2126  * irdma_ilq_ah_cb - callback after creation of AH for ILQ
2127  * @cqp_request: pointer to cqp_request of create AH
2128  */
2129 static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request)
2130 {
2131         struct irdma_cm_node *cm_node = cqp_request->param;
2132         struct irdma_sc_ah *sc_ah = cm_node->ah;
2133
2134         sc_ah->ah_info.ah_valid = !cqp_request->compl_info.op_ret_val;
2135         irdma_add_conn_est_qh(cm_node);
2136 }
2137
2138 /**
2139  * irdma_puda_create_ah - create AH for ILQ/IEQ qp's
2140  * @dev: device pointer
2141  * @ah_info: Address handle info
2142  * @wait: When true will wait for operation to complete
2143  * @type: ILQ/IEQ
2144  * @cb_param: Callback param when not waiting
2145  * @ah_ret: Returned pointer to address handle if created
2146  *
2147  */
2148 int irdma_puda_create_ah(struct irdma_sc_dev *dev,
2149                          struct irdma_ah_info *ah_info, bool wait,
2150                          enum puda_rsrc_type type, void *cb_param,
2151                          struct irdma_sc_ah **ah_ret)
2152 {
2153         struct irdma_sc_ah *ah;
2154         struct irdma_pci_f *rf = dev_to_rf(dev);
2155         int err;
2156
2157         ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
2158         *ah_ret = ah;
2159         if (!ah)
2160                 return -ENOMEM;
2161
2162         err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah,
2163                                &ah_info->ah_idx, &rf->next_ah);
2164         if (err)
2165                 goto err_free;
2166
2167         ah->dev = dev;
2168         ah->ah_info = *ah_info;
2169
2170         if (type == IRDMA_PUDA_RSRC_TYPE_ILQ)
2171                 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2172                                       irdma_ilq_ah_cb, cb_param);
2173         else
2174                 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2175                                       irdma_ieq_ah_cb, cb_param);
2176
2177         if (err)
2178                 goto error;
2179         return 0;
2180
2181 error:
2182         irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2183 err_free:
2184         kfree(ah);
2185         *ah_ret = NULL;
2186         return -ENOMEM;
2187 }
2188
2189 /**
2190  * irdma_puda_free_ah - free a puda address handle
2191  * @dev: device pointer
2192  * @ah: The address handle to free
2193  */
2194 void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah)
2195 {
2196         struct irdma_pci_f *rf = dev_to_rf(dev);
2197
2198         if (!ah)
2199                 return;
2200
2201         if (ah->ah_info.ah_valid) {
2202                 irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL);
2203                 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2204         }
2205
2206         kfree(ah);
2207 }
2208
2209 /**
2210  * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP
2211  * @cqp_request: pointer to cqp_request of create AH
2212  */
2213 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request)
2214 {
2215         struct irdma_sc_ah *sc_ah = cqp_request->param;
2216
2217         if (!cqp_request->compl_info.op_ret_val)
2218                 sc_ah->ah_info.ah_valid = true;
2219         else
2220                 sc_ah->ah_info.ah_valid = false;
2221 }
2222
2223 /**
2224  * irdma_prm_add_pble_mem - add moemory to pble resources
2225  * @pprm: pble resource manager
2226  * @pchunk: chunk of memory to add
2227  */
2228 int irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
2229                            struct irdma_chunk *pchunk)
2230 {
2231         u64 sizeofbitmap;
2232
2233         if (pchunk->size & 0xfff)
2234                 return -EINVAL;
2235
2236         sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift;
2237
2238         pchunk->bitmapbuf = bitmap_zalloc(sizeofbitmap, GFP_KERNEL);
2239         if (!pchunk->bitmapbuf)
2240                 return -ENOMEM;
2241
2242         pchunk->sizeofbitmap = sizeofbitmap;
2243         /* each pble is 8 bytes hence shift by 3 */
2244         pprm->total_pble_alloc += pchunk->size >> 3;
2245         pprm->free_pble_cnt += pchunk->size >> 3;
2246
2247         return 0;
2248 }
2249
2250 /**
2251  * irdma_prm_get_pbles - get pble's from prm
2252  * @pprm: pble resource manager
2253  * @chunkinfo: nformation about chunk where pble's were acquired
2254  * @mem_size: size of pble memory needed
2255  * @vaddr: returns virtual address of pble memory
2256  * @fpm_addr: returns fpm address of pble memory
2257  */
2258 int irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
2259                         struct irdma_pble_chunkinfo *chunkinfo, u64 mem_size,
2260                         u64 **vaddr, u64 *fpm_addr)
2261 {
2262         u64 bits_needed;
2263         u64 bit_idx = PBLE_INVALID_IDX;
2264         struct irdma_chunk *pchunk = NULL;
2265         struct list_head *chunk_entry = pprm->clist.next;
2266         u32 offset;
2267         unsigned long flags;
2268         *vaddr = NULL;
2269         *fpm_addr = 0;
2270
2271         bits_needed = DIV_ROUND_UP_ULL(mem_size, BIT_ULL(pprm->pble_shift));
2272
2273         spin_lock_irqsave(&pprm->prm_lock, flags);
2274         while (chunk_entry != &pprm->clist) {
2275                 pchunk = (struct irdma_chunk *)chunk_entry;
2276                 bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf,
2277                                                      pchunk->sizeofbitmap, 0,
2278                                                      bits_needed, 0);
2279                 if (bit_idx < pchunk->sizeofbitmap)
2280                         break;
2281
2282                 /* list.next used macro */
2283                 chunk_entry = pchunk->list.next;
2284         }
2285
2286         if (!pchunk || bit_idx >= pchunk->sizeofbitmap) {
2287                 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2288                 return -ENOMEM;
2289         }
2290
2291         bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed);
2292         offset = bit_idx << pprm->pble_shift;
2293         *vaddr = pchunk->vaddr + offset;
2294         *fpm_addr = pchunk->fpm_addr + offset;
2295
2296         chunkinfo->pchunk = pchunk;
2297         chunkinfo->bit_idx = bit_idx;
2298         chunkinfo->bits_used = bits_needed;
2299         /* 3 is sizeof pble divide */
2300         pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3);
2301         spin_unlock_irqrestore(&pprm->prm_lock, flags);
2302
2303         return 0;
2304 }
2305
2306 /**
2307  * irdma_prm_return_pbles - return pbles back to prm
2308  * @pprm: pble resource manager
2309  * @chunkinfo: chunk where pble's were acquired and to be freed
2310  */
2311 void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
2312                             struct irdma_pble_chunkinfo *chunkinfo)
2313 {
2314         unsigned long flags;
2315
2316         spin_lock_irqsave(&pprm->prm_lock, flags);
2317         pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3);
2318         bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx,
2319                      chunkinfo->bits_used);
2320         spin_unlock_irqrestore(&pprm->prm_lock, flags);
2321 }
2322
2323 int irdma_map_vm_page_list(struct irdma_hw *hw, void *va, dma_addr_t *pg_dma,
2324                            u32 pg_cnt)
2325 {
2326         struct page *vm_page;
2327         int i;
2328         u8 *addr;
2329
2330         addr = (u8 *)(uintptr_t)va;
2331         for (i = 0; i < pg_cnt; i++) {
2332                 vm_page = vmalloc_to_page(addr);
2333                 if (!vm_page)
2334                         goto err;
2335
2336                 pg_dma[i] = dma_map_page(hw->device, vm_page, 0, PAGE_SIZE,
2337                                          DMA_BIDIRECTIONAL);
2338                 if (dma_mapping_error(hw->device, pg_dma[i]))
2339                         goto err;
2340
2341                 addr += PAGE_SIZE;
2342         }
2343
2344         return 0;
2345
2346 err:
2347         irdma_unmap_vm_page_list(hw, pg_dma, i);
2348         return -ENOMEM;
2349 }
2350
2351 void irdma_unmap_vm_page_list(struct irdma_hw *hw, dma_addr_t *pg_dma, u32 pg_cnt)
2352 {
2353         int i;
2354
2355         for (i = 0; i < pg_cnt; i++)
2356                 dma_unmap_page(hw->device, pg_dma[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
2357 }
2358
2359 /**
2360  * irdma_pble_free_paged_mem - free virtual paged memory
2361  * @chunk: chunk to free with paged memory
2362  */
2363 void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
2364 {
2365         if (!chunk->pg_cnt)
2366                 goto done;
2367
2368         irdma_unmap_vm_page_list(chunk->dev->hw, chunk->dmainfo.dmaaddrs,
2369                                  chunk->pg_cnt);
2370
2371 done:
2372         kfree(chunk->dmainfo.dmaaddrs);
2373         chunk->dmainfo.dmaaddrs = NULL;
2374         vfree(chunk->vaddr);
2375         chunk->vaddr = NULL;
2376         chunk->type = 0;
2377 }
2378
2379 /**
2380  * irdma_pble_get_paged_mem -allocate paged memory for pbles
2381  * @chunk: chunk to add for paged memory
2382  * @pg_cnt: number of pages needed
2383  */
2384 int irdma_pble_get_paged_mem(struct irdma_chunk *chunk, u32 pg_cnt)
2385 {
2386         u32 size;
2387         void *va;
2388
2389         chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
2390         if (!chunk->dmainfo.dmaaddrs)
2391                 return -ENOMEM;
2392
2393         size = PAGE_SIZE * pg_cnt;
2394         va = vmalloc(size);
2395         if (!va)
2396                 goto err;
2397
2398         if (irdma_map_vm_page_list(chunk->dev->hw, va, chunk->dmainfo.dmaaddrs,
2399                                    pg_cnt)) {
2400                 vfree(va);
2401                 goto err;
2402         }
2403         chunk->vaddr = va;
2404         chunk->size = size;
2405         chunk->pg_cnt = pg_cnt;
2406         chunk->type = PBLE_SD_PAGED;
2407
2408         return 0;
2409 err:
2410         kfree(chunk->dmainfo.dmaaddrs);
2411         chunk->dmainfo.dmaaddrs = NULL;
2412
2413         return -ENOMEM;
2414 }
2415
2416 /**
2417  * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID
2418  * @dev: device pointer
2419  */
2420 u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev)
2421 {
2422         struct irdma_pci_f *rf = dev_to_rf(dev);
2423         u32 next = 1;
2424         u32 node_id;
2425
2426         if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id,
2427                              &node_id, &next))
2428                 return IRDMA_WS_NODE_INVALID;
2429
2430         return (u16)node_id;
2431 }
2432
2433 /**
2434  * irdma_free_ws_node_id - Free a tx scheduler node ID
2435  * @dev: device pointer
2436  * @node_id: Work scheduler node ID
2437  */
2438 void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id)
2439 {
2440         struct irdma_pci_f *rf = dev_to_rf(dev);
2441
2442         irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id);
2443 }
2444
2445 /**
2446  * irdma_modify_qp_to_err - Modify a QP to error
2447  * @sc_qp: qp structure
2448  */
2449 void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp)
2450 {
2451         struct irdma_qp *qp = sc_qp->qp_uk.back_qp;
2452         struct ib_qp_attr attr;
2453
2454         if (qp->iwdev->rf->reset)
2455                 return;
2456         attr.qp_state = IB_QPS_ERR;
2457
2458         if (rdma_protocol_roce(qp->ibqp.device, 1))
2459                 irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2460         else
2461                 irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2462 }
2463
2464 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event)
2465 {
2466         struct ib_event ibevent;
2467
2468         if (!iwqp->ibqp.event_handler)
2469                 return;
2470
2471         switch (event) {
2472         case IRDMA_QP_EVENT_CATASTROPHIC:
2473                 ibevent.event = IB_EVENT_QP_FATAL;
2474                 break;
2475         case IRDMA_QP_EVENT_ACCESS_ERR:
2476                 ibevent.event = IB_EVENT_QP_ACCESS_ERR;
2477                 break;
2478         }
2479         ibevent.device = iwqp->ibqp.device;
2480         ibevent.element.qp = &iwqp->ibqp;
2481         iwqp->ibqp.event_handler(&ibevent, iwqp->ibqp.qp_context);
2482 }
2483
2484 bool irdma_cq_empty(struct irdma_cq *iwcq)
2485 {
2486         struct irdma_cq_uk *ukcq;
2487         u64 qword3;
2488         __le64 *cqe;
2489         u8 polarity;
2490
2491         ukcq  = &iwcq->sc_cq.cq_uk;
2492         cqe = IRDMA_GET_CURRENT_CQ_ELEM(ukcq);
2493         get_64bit_val(cqe, 24, &qword3);
2494         polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
2495
2496         return polarity != ukcq->polarity;
2497 }
2498
2499 void irdma_remove_cmpls_list(struct irdma_cq *iwcq)
2500 {
2501         struct irdma_cmpl_gen *cmpl_node;
2502         struct list_head *tmp_node, *list_node;
2503
2504         list_for_each_safe (list_node, tmp_node, &iwcq->cmpl_generated) {
2505                 cmpl_node = list_entry(list_node, struct irdma_cmpl_gen, list);
2506                 list_del(&cmpl_node->list);
2507                 kfree(cmpl_node);
2508         }
2509 }
2510
2511 int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info)
2512 {
2513         struct irdma_cmpl_gen *cmpl;
2514
2515         if (list_empty(&iwcq->cmpl_generated))
2516                 return -ENOENT;
2517         cmpl = list_first_entry_or_null(&iwcq->cmpl_generated, struct irdma_cmpl_gen, list);
2518         list_del(&cmpl->list);
2519         memcpy(cq_poll_info, &cmpl->cpi, sizeof(*cq_poll_info));
2520         kfree(cmpl);
2521
2522         ibdev_dbg(iwcq->ibcq.device,
2523                   "VERBS: %s: Poll artificially generated completion for QP 0x%X, op %u, wr_id=0x%llx\n",
2524                   __func__, cq_poll_info->qp_id, cq_poll_info->op_type,
2525                   cq_poll_info->wr_id);
2526
2527         return 0;
2528 }
2529
2530 /**
2531  * irdma_set_cpi_common_values - fill in values for polling info struct
2532  * @cpi: resulting structure of cq_poll_info type
2533  * @qp: QPair
2534  * @qp_num: id of the QP
2535  */
2536 static void irdma_set_cpi_common_values(struct irdma_cq_poll_info *cpi,
2537                                         struct irdma_qp_uk *qp, u32 qp_num)
2538 {
2539         cpi->comp_status = IRDMA_COMPL_STATUS_FLUSHED;
2540         cpi->error = true;
2541         cpi->major_err = IRDMA_FLUSH_MAJOR_ERR;
2542         cpi->minor_err = FLUSH_GENERAL_ERR;
2543         cpi->qp_handle = (irdma_qp_handle)(uintptr_t)qp;
2544         cpi->qp_id = qp_num;
2545 }
2546
2547 static inline void irdma_comp_handler(struct irdma_cq *cq)
2548 {
2549         if (!cq->ibcq.comp_handler)
2550                 return;
2551         if (atomic_cmpxchg(&cq->armed, 1, 0))
2552                 cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
2553 }
2554
2555 void irdma_generate_flush_completions(struct irdma_qp *iwqp)
2556 {
2557         struct irdma_qp_uk *qp = &iwqp->sc_qp.qp_uk;
2558         struct irdma_ring *sq_ring = &qp->sq_ring;
2559         struct irdma_ring *rq_ring = &qp->rq_ring;
2560         struct irdma_cmpl_gen *cmpl;
2561         __le64 *sw_wqe;
2562         u64 wqe_qword;
2563         u32 wqe_idx;
2564         bool compl_generated = false;
2565         unsigned long flags1;
2566
2567         spin_lock_irqsave(&iwqp->iwscq->lock, flags1);
2568         if (irdma_cq_empty(iwqp->iwscq)) {
2569                 unsigned long flags2;
2570
2571                 spin_lock_irqsave(&iwqp->lock, flags2);
2572                 while (IRDMA_RING_MORE_WORK(*sq_ring)) {
2573                         cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2574                         if (!cmpl) {
2575                                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2576                                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2577                                 return;
2578                         }
2579
2580                         wqe_idx = sq_ring->tail;
2581                         irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2582
2583                         cmpl->cpi.wr_id = qp->sq_wrtrk_array[wqe_idx].wrid;
2584                         sw_wqe = qp->sq_base[wqe_idx].elem;
2585                         get_64bit_val(sw_wqe, 24, &wqe_qword);
2586                         cmpl->cpi.op_type = (u8)FIELD_GET(IRDMAQPSQ_OPCODE, IRDMAQPSQ_OPCODE);
2587                         /* remove the SQ WR by moving SQ tail*/
2588                         IRDMA_RING_SET_TAIL(*sq_ring,
2589                                 sq_ring->tail + qp->sq_wrtrk_array[sq_ring->tail].quanta);
2590
2591                         ibdev_dbg(iwqp->iwscq->ibcq.device,
2592                                   "DEV: %s: adding wr_id = 0x%llx SQ Completion to list qp_id=%d\n",
2593                                   __func__, cmpl->cpi.wr_id, qp->qp_id);
2594                         list_add_tail(&cmpl->list, &iwqp->iwscq->cmpl_generated);
2595                         compl_generated = true;
2596                 }
2597                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2598                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2599                 if (compl_generated)
2600                         irdma_comp_handler(iwqp->iwrcq);
2601         } else {
2602                 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2603                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2604                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
2605         }
2606
2607         spin_lock_irqsave(&iwqp->iwrcq->lock, flags1);
2608         if (irdma_cq_empty(iwqp->iwrcq)) {
2609                 unsigned long flags2;
2610
2611                 spin_lock_irqsave(&iwqp->lock, flags2);
2612                 while (IRDMA_RING_MORE_WORK(*rq_ring)) {
2613                         cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2614                         if (!cmpl) {
2615                                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2616                                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2617                                 return;
2618                         }
2619
2620                         wqe_idx = rq_ring->tail;
2621                         irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2622
2623                         cmpl->cpi.wr_id = qp->rq_wrid_array[wqe_idx];
2624                         cmpl->cpi.op_type = IRDMA_OP_TYPE_REC;
2625                         /* remove the RQ WR by moving RQ tail */
2626                         IRDMA_RING_SET_TAIL(*rq_ring, rq_ring->tail + 1);
2627                         ibdev_dbg(iwqp->iwrcq->ibcq.device,
2628                                   "DEV: %s: adding wr_id = 0x%llx RQ Completion to list qp_id=%d, wqe_idx=%d\n",
2629                                   __func__, cmpl->cpi.wr_id, qp->qp_id,
2630                                   wqe_idx);
2631                         list_add_tail(&cmpl->list, &iwqp->iwrcq->cmpl_generated);
2632
2633                         compl_generated = true;
2634                 }
2635                 spin_unlock_irqrestore(&iwqp->lock, flags2);
2636                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2637                 if (compl_generated)
2638                         irdma_comp_handler(iwqp->iwrcq);
2639         } else {
2640                 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2641                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2642                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
2643         }
2644 }