1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 /* Copyright (c) 2015 - 2021 Intel Corporation */
6 * irdma_arp_table -manage arp table
7 * @rf: RDMA PCI function
8 * @ip_addr: ip address for device
10 * @mac_addr: mac address ptr
11 * @action: modify, delete or add
13 int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
14 const u8 *mac_addr, u32 action)
23 memcpy(ip, ip_addr, sizeof(ip));
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)))
33 if (arp_index != rf->arp_table_size) {
39 if (irdma_alloc_rsrc(rf, rf->allocated_arps, rf->arp_table_size,
40 (u32 *)&arp_index, &rf->next_arp_index)) {
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);
49 case IRDMA_ARP_RESOLVE:
50 if (arp_index == rf->arp_table_size)
53 case IRDMA_ARP_DELETE:
54 if (arp_index == rf->arp_table_size) {
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);
69 spin_unlock_irqrestore(&rf->arp_lock, flags);
74 * irdma_add_arp - add a new arp entry if needed
80 int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac)
84 arpidx = irdma_arp_table(rf, &ip[0], ipv4, NULL, IRDMA_ARP_RESOLVE);
86 if (ether_addr_equal(rf->arp_table[arpidx].mac_addr, mac))
89 irdma_manage_arp_cache(rf, rf->arp_table[arpidx].mac_addr, ip,
90 ipv4, IRDMA_ARP_DELETE);
93 irdma_manage_arp_cache(rf, mac, ip, ipv4, IRDMA_ARP_ADD);
95 return irdma_arp_table(rf, ip, ipv4, NULL, IRDMA_ARP_RESOLVE);
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
104 inline void wr32(struct irdma_hw *hw, u32 reg, u32 val)
106 writel(val, hw->hw_addr + reg);
110 * rd32 - read a 32 bit hw register
111 * @hw: hardware information including registers
112 * @reg: register offset
114 * Return value of register content
116 inline u32 rd32(struct irdma_hw *hw, u32 reg)
118 return readl(hw->hw_addr + reg);
122 * rd64 - read a 64 bit hw register
123 * @hw: hardware information including registers
124 * @reg: register offset
126 * Return value of register content
128 inline u64 rd64(struct irdma_hw *hw, u32 reg)
130 return readq(hw->hw_addr + reg);
133 static void irdma_gid_change_event(struct ib_device *ibdev)
135 struct ib_event ib_event;
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);
144 * irdma_inetaddr_event - system notifier for ipv4 addr events
145 * @notifier: not used
146 * @event: event for notifier
149 int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
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;
158 real_dev = rdma_vlan_dev_real_dev(netdev);
162 ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
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);
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);
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);
188 ib_device_put(ibdev);
194 * irdma_inet6addr_event - system notifier for ipv6 addr events
195 * @notifier: not used
196 * @event: event for notifier
199 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
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];
208 real_dev = rdma_vlan_dev_real_dev(netdev);
212 ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
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);
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);
229 case NETDEV_CHANGEADDR:
230 irdma_add_arp(iwdev->rf, local_ipaddr6, false,
232 irdma_if_notify(iwdev, real_dev, local_ipaddr6, false, true);
233 irdma_gid_change_event(&iwdev->ibdev);
239 ib_device_put(ibdev);
245 * irdma_net_event - system notifier for net events
246 * @notifier: not used
247 * @event: event for notifier
250 int irdma_net_event(struct notifier_block *notifier, unsigned long event,
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;
258 u32 local_ipaddr[4] = {};
262 case NETEVENT_NEIGH_UPDATE:
263 real_dev = rdma_vlan_dev_real_dev(netdev);
266 ibdev = ib_device_get_by_netdev(real_dev, RDMA_DRIVER_IRDMA);
270 iwdev = to_iwdev(ibdev);
271 p = (__be32 *)neigh->primary_key;
272 if (neigh->tbl->family == AF_INET6) {
274 irdma_copy_ip_ntohl(local_ipaddr, p);
276 local_ipaddr[0] = ntohl(*p);
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,
284 if (neigh->nud_state & NUD_VALID)
285 irdma_add_arp(iwdev->rf, local_ipaddr, ipv4, neigh->ha);
288 irdma_manage_arp_cache(iwdev->rf, neigh->ha,
291 ib_device_put(ibdev);
301 * irdma_netdevice_event - system notifier for netdev events
302 * @notifier: not used
303 * @event: event for notifier
306 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
309 struct irdma_device *iwdev;
310 struct ib_device *ibdev;
311 struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
313 ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
317 iwdev = to_iwdev(ibdev);
318 iwdev->iw_status = 1;
321 iwdev->iw_status = 0;
324 irdma_port_ibevent(iwdev);
329 ib_device_put(ibdev);
335 * irdma_add_ipv6_addr - add ipv6 address to the hw arp table
336 * @iwdev: irdma device
338 static void irdma_add_ipv6_addr(struct irdma_device *iwdev)
340 struct net_device *ip_dev;
341 struct inet6_dev *idev;
342 struct inet6_ifaddr *ifp, *tmp;
343 u32 local_ipaddr6[4];
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);
353 ibdev_err(&iwdev->ibdev, "ipv6 inet device not found\n");
356 list_for_each_entry_safe (ifp, tmp, &idev->addr_list,
358 ibdev_dbg(&iwdev->ibdev,
359 "INIT: IP=%pI6, vlan_id=%d, MAC=%pM\n",
361 rdma_vlan_dev_vlan_id(ip_dev),
364 irdma_copy_ip_ntohl(local_ipaddr6,
365 ifp->addr.in6_u.u6_addr32);
366 irdma_manage_arp_cache(iwdev->rf,
368 local_ipaddr6, false,
377 * irdma_add_ipv4_addr - add ipv4 address to the hw arp table
378 * @iwdev: irdma device
380 static void irdma_add_ipv4_addr(struct irdma_device *iwdev)
382 struct net_device *dev;
383 struct in_device *idev;
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;
393 idev = __in_dev_get_rcu(dev);
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),
402 ip_addr = ntohl(ifa->ifa_address);
403 irdma_manage_arp_cache(iwdev->rf, dev->dev_addr,
413 * irdma_add_ip - add ip addresses
414 * @iwdev: irdma device
416 * Add ipv4/ipv6 addresses to the arp cache
418 void irdma_add_ip(struct irdma_device *iwdev)
420 irdma_add_ipv4_addr(iwdev);
421 irdma_add_ipv6_addr(iwdev);
425 * irdma_alloc_and_get_cqp_request - get cqp struct
426 * @cqp: device cqp ptr
427 * @wait: cqp to be used in wait mode
429 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
432 struct irdma_cqp_request *cqp_request = NULL;
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);
441 spin_unlock_irqrestore(&cqp->req_lock, flags);
443 cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC);
445 cqp_request->dynamic = true;
447 init_waitqueue_head(&cqp_request->waitq);
451 ibdev_dbg(to_ibdev(cqp->sc_cqp.dev), "ERR: CQP Request Fail: No Memory");
455 cqp_request->waiting = wait;
456 refcount_set(&cqp_request->refcnt, 1);
457 memset(&cqp_request->compl_info, 0, sizeof(cqp_request->compl_info));
463 * irdma_get_cqp_request - increase refcount for cqp_request
464 * @cqp_request: pointer to cqp_request instance
466 static inline void irdma_get_cqp_request(struct irdma_cqp_request *cqp_request)
468 refcount_inc(&cqp_request->refcnt);
472 * irdma_free_cqp_request - free cqp request
474 * @cqp_request: to be put back in cqp list
476 void irdma_free_cqp_request(struct irdma_cqp *cqp,
477 struct irdma_cqp_request *cqp_request)
481 if (cqp_request->dynamic) {
484 WRITE_ONCE(cqp_request->request_done, false);
485 cqp_request->callback_fcn = NULL;
486 cqp_request->waiting = false;
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);
492 wake_up(&cqp->remove_wq);
496 * irdma_put_cqp_request - dec ref count and free if 0
498 * @cqp_request: to be put back in cqp list
500 void irdma_put_cqp_request(struct irdma_cqp *cqp,
501 struct irdma_cqp_request *cqp_request)
503 if (refcount_dec_and_test(&cqp_request->refcnt))
504 irdma_free_cqp_request(cqp, cqp_request);
508 * irdma_free_pending_cqp_request -free pending cqp request objs
510 * @cqp_request: to be put back in cqp list
513 irdma_free_pending_cqp_request(struct irdma_cqp *cqp,
514 struct irdma_cqp_request *cqp_request)
516 if (cqp_request->waiting) {
517 cqp_request->compl_info.error = true;
518 WRITE_ONCE(cqp_request->request_done, true);
519 wake_up(&cqp_request->waitq);
521 wait_event_timeout(cqp->remove_wq,
522 refcount_read(&cqp_request->refcnt) == 1, 1000);
523 irdma_put_cqp_request(cqp, cqp_request);
527 * irdma_cleanup_pending_cqp_op - clean-up cqp with no
529 * @rf: RDMA PCI function
531 void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf)
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;
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];
545 irdma_free_pending_cqp_request(cqp, cqp_request);
546 wqe_idx = (wqe_idx + 1) % IRDMA_RING_SIZE(cqp->sc_cqp.sq_ring);
549 while (!list_empty(&dev->cqp_cmd_head)) {
550 pcmdinfo = irdma_remove_cqp_head(dev);
552 container_of(pcmdinfo, struct irdma_cqp_request, info);
554 irdma_free_pending_cqp_request(cqp, cqp_request);
559 * irdma_wait_event - wait for completion
560 * @rf: RDMA PCI function
561 * @cqp_request: cqp request to wait
563 static int irdma_wait_event(struct irdma_pci_f *rf,
564 struct irdma_cqp_request *cqp_request)
566 struct irdma_cqp_timeout cqp_timeout = {};
567 bool cqp_error = false;
570 cqp_timeout.compl_cqp_cmds = atomic64_read(&rf->sc_dev.cqp->completed_ops);
572 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
573 if (wait_event_timeout(cqp_request->waitq,
574 READ_ONCE(cqp_request->request_done),
575 msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS)))
578 irdma_check_cqp_progress(&cqp_timeout, &rf->sc_dev);
580 if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD)
585 rf->gen_ops.request_reset(rf);
590 cqp_error = cqp_request->compl_info.error;
593 if (cqp_request->compl_info.maj_err_code == 0xFFFF) {
594 if (cqp_request->compl_info.min_err_code == 0x8002)
596 else if (cqp_request->compl_info.min_err_code == 0x8029) {
599 rf->gen_ops.request_reset(rf);
608 static const char *const irdma_cqp_cmd_names[IRDMA_MAX_CQP_OPS] = {
609 [IRDMA_OP_CEQ_DESTROY] = "Destroy CEQ Cmd",
610 [IRDMA_OP_AEQ_DESTROY] = "Destroy AEQ Cmd",
611 [IRDMA_OP_DELETE_ARP_CACHE_ENTRY] = "Delete ARP Cache Cmd",
612 [IRDMA_OP_MANAGE_APBVT_ENTRY] = "Manage APBV Table Entry Cmd",
613 [IRDMA_OP_CEQ_CREATE] = "CEQ Create Cmd",
614 [IRDMA_OP_AEQ_CREATE] = "AEQ Destroy Cmd",
615 [IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY] = "Manage Quad Hash Table Entry Cmd",
616 [IRDMA_OP_QP_MODIFY] = "Modify QP Cmd",
617 [IRDMA_OP_QP_UPLOAD_CONTEXT] = "Upload Context Cmd",
618 [IRDMA_OP_CQ_CREATE] = "Create CQ Cmd",
619 [IRDMA_OP_CQ_DESTROY] = "Destroy CQ Cmd",
620 [IRDMA_OP_QP_CREATE] = "Create QP Cmd",
621 [IRDMA_OP_QP_DESTROY] = "Destroy QP Cmd",
622 [IRDMA_OP_ALLOC_STAG] = "Allocate STag Cmd",
623 [IRDMA_OP_MR_REG_NON_SHARED] = "Register Non-Shared MR Cmd",
624 [IRDMA_OP_DEALLOC_STAG] = "Deallocate STag Cmd",
625 [IRDMA_OP_MW_ALLOC] = "Allocate Memory Window Cmd",
626 [IRDMA_OP_QP_FLUSH_WQES] = "Flush QP Cmd",
627 [IRDMA_OP_ADD_ARP_CACHE_ENTRY] = "Add ARP Cache Cmd",
628 [IRDMA_OP_MANAGE_PUSH_PAGE] = "Manage Push Page Cmd",
629 [IRDMA_OP_UPDATE_PE_SDS] = "Update PE SDs Cmd",
630 [IRDMA_OP_MANAGE_HMC_PM_FUNC_TABLE] = "Manage HMC PM Function Table Cmd",
631 [IRDMA_OP_SUSPEND] = "Suspend QP Cmd",
632 [IRDMA_OP_RESUME] = "Resume QP Cmd",
633 [IRDMA_OP_MANAGE_VF_PBLE_BP] = "Manage VF PBLE Backing Pages Cmd",
634 [IRDMA_OP_QUERY_FPM_VAL] = "Query FPM Values Cmd",
635 [IRDMA_OP_COMMIT_FPM_VAL] = "Commit FPM Values Cmd",
636 [IRDMA_OP_AH_CREATE] = "Create Address Handle Cmd",
637 [IRDMA_OP_AH_MODIFY] = "Modify Address Handle Cmd",
638 [IRDMA_OP_AH_DESTROY] = "Destroy Address Handle Cmd",
639 [IRDMA_OP_MC_CREATE] = "Create Multicast Group Cmd",
640 [IRDMA_OP_MC_DESTROY] = "Destroy Multicast Group Cmd",
641 [IRDMA_OP_MC_MODIFY] = "Modify Multicast Group Cmd",
642 [IRDMA_OP_STATS_ALLOCATE] = "Add Statistics Instance Cmd",
643 [IRDMA_OP_STATS_FREE] = "Free Statistics Instance Cmd",
644 [IRDMA_OP_STATS_GATHER] = "Gather Statistics Cmd",
645 [IRDMA_OP_WS_ADD_NODE] = "Add Work Scheduler Node Cmd",
646 [IRDMA_OP_WS_MODIFY_NODE] = "Modify Work Scheduler Node Cmd",
647 [IRDMA_OP_WS_DELETE_NODE] = "Delete Work Scheduler Node Cmd",
648 [IRDMA_OP_SET_UP_MAP] = "Set UP-UP Mapping Cmd",
649 [IRDMA_OP_GEN_AE] = "Generate AE Cmd",
650 [IRDMA_OP_QUERY_RDMA_FEATURES] = "RDMA Get Features Cmd",
651 [IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY] = "Allocate Local MAC Entry Cmd",
652 [IRDMA_OP_ADD_LOCAL_MAC_ENTRY] = "Add Local MAC Entry Cmd",
653 [IRDMA_OP_DELETE_LOCAL_MAC_ENTRY] = "Delete Local MAC Entry Cmd",
654 [IRDMA_OP_CQ_MODIFY] = "CQ Modify Cmd",
657 static const struct irdma_cqp_err_info irdma_noncrit_err_list[] = {
658 {0xffff, 0x8002, "Invalid State"},
659 {0xffff, 0x8006, "Flush No Wqe Pending"},
660 {0xffff, 0x8007, "Modify QP Bad Close"},
661 {0xffff, 0x8009, "LLP Closed"},
662 {0xffff, 0x800a, "Reset Not Sent"}
666 * irdma_cqp_crit_err - check if CQP error is critical
667 * @dev: pointer to dev structure
668 * @cqp_cmd: code for last CQP operation
669 * @maj_err_code: major error code
670 * @min_err_code: minot error code
672 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
673 u16 maj_err_code, u16 min_err_code)
677 for (i = 0; i < ARRAY_SIZE(irdma_noncrit_err_list); ++i) {
678 if (maj_err_code == irdma_noncrit_err_list[i].maj &&
679 min_err_code == irdma_noncrit_err_list[i].min) {
680 ibdev_dbg(to_ibdev(dev),
681 "CQP: [%s Error][%s] maj=0x%x min=0x%x\n",
682 irdma_noncrit_err_list[i].desc,
683 irdma_cqp_cmd_names[cqp_cmd], maj_err_code,
692 * irdma_handle_cqp_op - process cqp command
693 * @rf: RDMA PCI function
694 * @cqp_request: cqp request to process
696 int irdma_handle_cqp_op(struct irdma_pci_f *rf,
697 struct irdma_cqp_request *cqp_request)
699 struct irdma_sc_dev *dev = &rf->sc_dev;
700 struct cqp_cmds_info *info = &cqp_request->info;
702 bool put_cqp_request = true;
707 irdma_get_cqp_request(cqp_request);
708 status = irdma_process_cqp_cmd(dev, info);
712 if (cqp_request->waiting) {
713 put_cqp_request = false;
714 status = irdma_wait_event(rf, cqp_request);
722 if (irdma_cqp_crit_err(dev, info->cqp_cmd,
723 cqp_request->compl_info.maj_err_code,
724 cqp_request->compl_info.min_err_code))
725 ibdev_err(&rf->iwdev->ibdev,
726 "[%s Error][op_code=%d] status=%d waiting=%d completion_err=%d maj=0x%x min=0x%x\n",
727 irdma_cqp_cmd_names[info->cqp_cmd], info->cqp_cmd, status, cqp_request->waiting,
728 cqp_request->compl_info.error, cqp_request->compl_info.maj_err_code,
729 cqp_request->compl_info.min_err_code);
732 irdma_put_cqp_request(&rf->cqp, cqp_request);
737 void irdma_qp_add_ref(struct ib_qp *ibqp)
739 struct irdma_qp *iwqp = (struct irdma_qp *)ibqp;
741 refcount_inc(&iwqp->refcnt);
744 void irdma_qp_rem_ref(struct ib_qp *ibqp)
746 struct irdma_qp *iwqp = to_iwqp(ibqp);
747 struct irdma_device *iwdev = iwqp->iwdev;
751 spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
752 if (!refcount_dec_and_test(&iwqp->refcnt)) {
753 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
757 qp_num = iwqp->ibqp.qp_num;
758 iwdev->rf->qp_table[qp_num] = NULL;
759 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
760 complete(&iwqp->free_qp);
763 void irdma_cq_add_ref(struct ib_cq *ibcq)
765 struct irdma_cq *iwcq = to_iwcq(ibcq);
767 refcount_inc(&iwcq->refcnt);
770 void irdma_cq_rem_ref(struct ib_cq *ibcq)
772 struct ib_device *ibdev = ibcq->device;
773 struct irdma_device *iwdev = to_iwdev(ibdev);
774 struct irdma_cq *iwcq = to_iwcq(ibcq);
777 spin_lock_irqsave(&iwdev->rf->cqtable_lock, flags);
778 if (!refcount_dec_and_test(&iwcq->refcnt)) {
779 spin_unlock_irqrestore(&iwdev->rf->cqtable_lock, flags);
783 iwdev->rf->cq_table[iwcq->cq_num] = NULL;
784 spin_unlock_irqrestore(&iwdev->rf->cqtable_lock, flags);
785 complete(&iwcq->free_cq);
788 struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
790 return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;
794 * irdma_get_qp - get qp address
795 * @device: iwarp device
798 struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn)
800 struct irdma_device *iwdev = to_iwdev(device);
802 if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp)
805 return &iwdev->rf->qp_table[qpn]->ibqp;
809 * irdma_remove_cqp_head - return head entry and remove
812 void *irdma_remove_cqp_head(struct irdma_sc_dev *dev)
814 struct list_head *entry;
815 struct list_head *list = &dev->cqp_cmd_head;
817 if (list_empty(list))
827 * irdma_cqp_sds_cmd - create cqp command for sd
828 * @dev: hardware control device structure
829 * @sdinfo: information for sd cqp
832 int irdma_cqp_sds_cmd(struct irdma_sc_dev *dev,
833 struct irdma_update_sds_info *sdinfo)
835 struct irdma_cqp_request *cqp_request;
836 struct cqp_cmds_info *cqp_info;
837 struct irdma_pci_f *rf = dev_to_rf(dev);
840 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
844 cqp_info = &cqp_request->info;
845 memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
846 sizeof(cqp_info->in.u.update_pe_sds.info));
847 cqp_info->cqp_cmd = IRDMA_OP_UPDATE_PE_SDS;
848 cqp_info->post_sq = 1;
849 cqp_info->in.u.update_pe_sds.dev = dev;
850 cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
852 status = irdma_handle_cqp_op(rf, cqp_request);
853 irdma_put_cqp_request(&rf->cqp, cqp_request);
859 * irdma_cqp_qp_suspend_resume - cqp command for suspend/resume
860 * @qp: hardware control qp
861 * @op: suspend or resume
863 int irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp, u8 op)
865 struct irdma_sc_dev *dev = qp->dev;
866 struct irdma_cqp_request *cqp_request;
867 struct irdma_sc_cqp *cqp = dev->cqp;
868 struct cqp_cmds_info *cqp_info;
869 struct irdma_pci_f *rf = dev_to_rf(dev);
872 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
876 cqp_info = &cqp_request->info;
877 cqp_info->cqp_cmd = op;
878 cqp_info->in.u.suspend_resume.cqp = cqp;
879 cqp_info->in.u.suspend_resume.qp = qp;
880 cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request;
882 status = irdma_handle_cqp_op(rf, cqp_request);
883 irdma_put_cqp_request(&rf->cqp, cqp_request);
889 * irdma_term_modify_qp - modify qp for term message
890 * @qp: hardware control qp
891 * @next_state: qp's next state
892 * @term: terminate code
895 void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term,
898 struct irdma_qp *iwqp;
900 iwqp = qp->qp_uk.back_qp;
901 irdma_next_iw_state(iwqp, next_state, 0, term, term_len);
905 * irdma_terminate_done - after terminate is completed
906 * @qp: hardware control qp
907 * @timeout_occurred: indicates if terminate timer expired
909 void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred)
911 struct irdma_qp *iwqp;
916 iwqp = qp->qp_uk.back_qp;
917 spin_lock_irqsave(&iwqp->lock, flags);
918 if (iwqp->hte_added) {
922 first_time = !(qp->term_flags & IRDMA_TERM_DONE);
923 qp->term_flags |= IRDMA_TERM_DONE;
924 spin_unlock_irqrestore(&iwqp->lock, flags);
926 if (!timeout_occurred)
927 irdma_terminate_del_timer(qp);
929 irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0);
930 irdma_cm_disconn(iwqp);
934 static void irdma_terminate_timeout(struct timer_list *t)
936 struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer);
937 struct irdma_sc_qp *qp = &iwqp->sc_qp;
939 irdma_terminate_done(qp, 1);
940 irdma_qp_rem_ref(&iwqp->ibqp);
944 * irdma_terminate_start_timer - start terminate timeout
945 * @qp: hardware control qp
947 void irdma_terminate_start_timer(struct irdma_sc_qp *qp)
949 struct irdma_qp *iwqp;
951 iwqp = qp->qp_uk.back_qp;
952 irdma_qp_add_ref(&iwqp->ibqp);
953 timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0);
954 iwqp->terminate_timer.expires = jiffies + HZ;
956 add_timer(&iwqp->terminate_timer);
960 * irdma_terminate_del_timer - delete terminate timeout
961 * @qp: hardware control qp
963 void irdma_terminate_del_timer(struct irdma_sc_qp *qp)
965 struct irdma_qp *iwqp;
968 iwqp = qp->qp_uk.back_qp;
969 ret = del_timer(&iwqp->terminate_timer);
971 irdma_qp_rem_ref(&iwqp->ibqp);
975 * irdma_cqp_query_fpm_val_cmd - send cqp command for fpm
976 * @dev: function device struct
977 * @val_mem: buffer for fpm
978 * @hmc_fn_id: function id for fpm
980 int irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev,
981 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
983 struct irdma_cqp_request *cqp_request;
984 struct cqp_cmds_info *cqp_info;
985 struct irdma_pci_f *rf = dev_to_rf(dev);
988 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
992 cqp_info = &cqp_request->info;
993 cqp_request->param = NULL;
994 cqp_info->in.u.query_fpm_val.cqp = dev->cqp;
995 cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa;
996 cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va;
997 cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id;
998 cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL;
999 cqp_info->post_sq = 1;
1000 cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request;
1002 status = irdma_handle_cqp_op(rf, cqp_request);
1003 irdma_put_cqp_request(&rf->cqp, cqp_request);
1009 * irdma_cqp_commit_fpm_val_cmd - commit fpm values in hw
1010 * @dev: hardware control device structure
1011 * @val_mem: buffer with fpm values
1012 * @hmc_fn_id: function id for fpm
1014 int irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev,
1015 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
1017 struct irdma_cqp_request *cqp_request;
1018 struct cqp_cmds_info *cqp_info;
1019 struct irdma_pci_f *rf = dev_to_rf(dev);
1022 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1026 cqp_info = &cqp_request->info;
1027 cqp_request->param = NULL;
1028 cqp_info->in.u.commit_fpm_val.cqp = dev->cqp;
1029 cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa;
1030 cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va;
1031 cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id;
1032 cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL;
1033 cqp_info->post_sq = 1;
1034 cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request;
1036 status = irdma_handle_cqp_op(rf, cqp_request);
1037 irdma_put_cqp_request(&rf->cqp, cqp_request);
1043 * irdma_cqp_cq_create_cmd - create a cq for the cqp
1044 * @dev: device pointer
1045 * @cq: pointer to created cq
1047 int irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
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;
1055 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1059 cqp_info = &cqp_request->info;
1060 cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
1061 cqp_info->post_sq = 1;
1062 cqp_info->in.u.cq_create.cq = cq;
1063 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1065 status = irdma_handle_cqp_op(rf, cqp_request);
1066 irdma_put_cqp_request(iwcqp, cqp_request);
1072 * irdma_cqp_qp_create_cmd - create a qp for the cqp
1073 * @dev: device pointer
1074 * @qp: pointer to created qp
1076 int irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1078 struct irdma_pci_f *rf = dev_to_rf(dev);
1079 struct irdma_cqp *iwcqp = &rf->cqp;
1080 struct irdma_cqp_request *cqp_request;
1081 struct cqp_cmds_info *cqp_info;
1082 struct irdma_create_qp_info *qp_info;
1085 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1089 cqp_info = &cqp_request->info;
1090 qp_info = &cqp_request->info.in.u.qp_create.info;
1091 memset(qp_info, 0, sizeof(*qp_info));
1092 qp_info->cq_num_valid = true;
1093 qp_info->next_iwarp_state = IRDMA_QP_STATE_RTS;
1094 cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
1095 cqp_info->post_sq = 1;
1096 cqp_info->in.u.qp_create.qp = qp;
1097 cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
1099 status = irdma_handle_cqp_op(rf, cqp_request);
1100 irdma_put_cqp_request(iwcqp, cqp_request);
1106 * irdma_dealloc_push_page - free a push page for qp
1107 * @rf: RDMA PCI function
1108 * @qp: hardware control qp
1110 static void irdma_dealloc_push_page(struct irdma_pci_f *rf,
1111 struct irdma_sc_qp *qp)
1113 struct irdma_cqp_request *cqp_request;
1114 struct cqp_cmds_info *cqp_info;
1117 if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX)
1120 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
1124 cqp_info = &cqp_request->info;
1125 cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
1126 cqp_info->post_sq = 1;
1127 cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
1128 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
1129 cqp_info->in.u.manage_push_page.info.free_page = 1;
1130 cqp_info->in.u.manage_push_page.info.push_page_type = 0;
1131 cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp;
1132 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
1133 status = irdma_handle_cqp_op(rf, cqp_request);
1135 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
1136 irdma_put_cqp_request(&rf->cqp, cqp_request);
1140 * irdma_free_qp_rsrc - free up memory resources for qp
1141 * @iwqp: qp ptr (user or kernel)
1143 void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
1145 struct irdma_device *iwdev = iwqp->iwdev;
1146 struct irdma_pci_f *rf = iwdev->rf;
1147 u32 qp_num = iwqp->ibqp.qp_num;
1149 irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
1150 irdma_dealloc_push_page(rf, &iwqp->sc_qp);
1151 if (iwqp->sc_qp.vsi) {
1152 irdma_qp_rem_qos(&iwqp->sc_qp);
1153 iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
1154 iwqp->sc_qp.user_pri);
1158 irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
1159 dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size,
1160 iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa);
1161 iwqp->q2_ctx_mem.va = NULL;
1162 dma_free_coherent(rf->sc_dev.hw->device, iwqp->kqp.dma_mem.size,
1163 iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa);
1164 iwqp->kqp.dma_mem.va = NULL;
1165 kfree(iwqp->kqp.sq_wrid_mem);
1166 kfree(iwqp->kqp.rq_wrid_mem);
1170 * irdma_cq_wq_destroy - send cq destroy cqp
1171 * @rf: RDMA PCI function
1172 * @cq: hardware control cq
1174 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
1176 struct irdma_cqp_request *cqp_request;
1177 struct cqp_cmds_info *cqp_info;
1179 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1183 cqp_info = &cqp_request->info;
1184 cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY;
1185 cqp_info->post_sq = 1;
1186 cqp_info->in.u.cq_destroy.cq = cq;
1187 cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1189 irdma_handle_cqp_op(rf, cqp_request);
1190 irdma_put_cqp_request(&rf->cqp, cqp_request);
1194 * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait
1195 * @cqp_request: modify QP completion
1197 static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request)
1199 struct cqp_cmds_info *cqp_info;
1200 struct irdma_qp *iwqp;
1202 cqp_info = &cqp_request->info;
1203 iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp;
1204 atomic_dec(&iwqp->hw_mod_qp_pend);
1205 wake_up(&iwqp->mod_qp_waitq);
1209 * irdma_hw_modify_qp - setup cqp for modify qp
1210 * @iwdev: RDMA device
1211 * @iwqp: qp ptr (user or kernel)
1212 * @info: info for modify qp
1213 * @wait: flag to wait or not for modify qp completion
1215 int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,
1216 struct irdma_modify_qp_info *info, bool wait)
1219 struct irdma_pci_f *rf = iwdev->rf;
1220 struct irdma_cqp_request *cqp_request;
1221 struct cqp_cmds_info *cqp_info;
1222 struct irdma_modify_qp_info *m_info;
1224 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1229 cqp_request->callback_fcn = irdma_hw_modify_qp_callback;
1230 atomic_inc(&iwqp->hw_mod_qp_pend);
1232 cqp_info = &cqp_request->info;
1233 m_info = &cqp_info->in.u.qp_modify.info;
1234 memcpy(m_info, info, sizeof(*m_info));
1235 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1236 cqp_info->post_sq = 1;
1237 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1238 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1239 status = irdma_handle_cqp_op(rf, cqp_request);
1240 irdma_put_cqp_request(&rf->cqp, cqp_request);
1242 if (rdma_protocol_roce(&iwdev->ibdev, 1))
1245 switch (m_info->next_iwarp_state) {
1246 struct irdma_gen_ae_info ae_info;
1248 case IRDMA_QP_STATE_RTS:
1249 case IRDMA_QP_STATE_IDLE:
1250 case IRDMA_QP_STATE_TERMINATE:
1251 case IRDMA_QP_STATE_CLOSING:
1252 if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE)
1253 irdma_send_reset(iwqp->cm_node);
1255 iwqp->sc_qp.term_flags = IRDMA_TERM_DONE;
1257 ae_info.ae_code = IRDMA_AE_BAD_CLOSE;
1259 irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false);
1261 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp,
1266 cqp_info = &cqp_request->info;
1267 m_info = &cqp_info->in.u.qp_modify.info;
1268 memcpy(m_info, info, sizeof(*m_info));
1269 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1270 cqp_info->post_sq = 1;
1271 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1272 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1273 m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR;
1274 m_info->reset_tcp_conn = true;
1275 irdma_handle_cqp_op(rf, cqp_request);
1276 irdma_put_cqp_request(&rf->cqp, cqp_request);
1279 case IRDMA_QP_STATE_ERROR:
1289 * irdma_cqp_cq_destroy_cmd - destroy the cqp cq
1290 * @dev: device pointer
1291 * @cq: pointer to cq
1293 void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1295 struct irdma_pci_f *rf = dev_to_rf(dev);
1297 irdma_cq_wq_destroy(rf, cq);
1301 * irdma_cqp_qp_destroy_cmd - destroy the cqp
1302 * @dev: device pointer
1303 * @qp: pointer to qp
1305 int irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1307 struct irdma_pci_f *rf = dev_to_rf(dev);
1308 struct irdma_cqp *iwcqp = &rf->cqp;
1309 struct irdma_cqp_request *cqp_request;
1310 struct cqp_cmds_info *cqp_info;
1313 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1317 cqp_info = &cqp_request->info;
1318 memset(cqp_info, 0, sizeof(*cqp_info));
1319 cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY;
1320 cqp_info->post_sq = 1;
1321 cqp_info->in.u.qp_destroy.qp = qp;
1322 cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
1323 cqp_info->in.u.qp_destroy.remove_hash_idx = true;
1325 status = irdma_handle_cqp_op(rf, cqp_request);
1326 irdma_put_cqp_request(&rf->cqp, cqp_request);
1332 * irdma_ieq_mpa_crc_ae - generate AE for crc error
1333 * @dev: hardware control device structure
1334 * @qp: hardware control qp
1336 void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1338 struct irdma_gen_ae_info info = {};
1339 struct irdma_pci_f *rf = dev_to_rf(dev);
1341 ibdev_dbg(&rf->iwdev->ibdev, "AEQ: Generate MPA CRC AE\n");
1342 info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR;
1343 info.ae_src = IRDMA_AE_SOURCE_RQ;
1344 irdma_gen_ae(rf, qp, &info, false);
1348 * irdma_init_hash_desc - initialize hash for crc calculation
1349 * @desc: cryption type
1351 int irdma_init_hash_desc(struct shash_desc **desc)
1353 struct crypto_shash *tfm;
1354 struct shash_desc *tdesc;
1356 tfm = crypto_alloc_shash("crc32c", 0, 0);
1360 tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
1363 crypto_free_shash(tfm);
1374 * irdma_free_hash_desc - free hash desc
1375 * @desc: to be freed
1377 void irdma_free_hash_desc(struct shash_desc *desc)
1380 crypto_free_shash(desc->tfm);
1386 * irdma_ieq_check_mpacrc - check if mpa crc is OK
1387 * @desc: desc for hash
1388 * @addr: address of buffer for crc
1389 * @len: length of buffer
1390 * @val: value to be compared
1392 int irdma_ieq_check_mpacrc(struct shash_desc *desc, void *addr, u32 len,
1399 crypto_shash_init(desc);
1400 ret = crypto_shash_update(desc, addr, len);
1402 crypto_shash_final(desc, (u8 *)&crc);
1410 * irdma_ieq_get_qp - get qp based on quad in puda buffer
1411 * @dev: hardware control device structure
1412 * @buf: receive puda buffer on exception q
1414 struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
1415 struct irdma_puda_buf *buf)
1417 struct irdma_qp *iwqp;
1418 struct irdma_cm_node *cm_node;
1419 struct irdma_device *iwdev = buf->vsi->back_vsi;
1420 u32 loc_addr[4] = {};
1421 u32 rem_addr[4] = {};
1422 u16 loc_port, rem_port;
1423 struct ipv6hdr *ip6h;
1424 struct iphdr *iph = (struct iphdr *)buf->iph;
1425 struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1427 if (iph->version == 4) {
1428 loc_addr[0] = ntohl(iph->daddr);
1429 rem_addr[0] = ntohl(iph->saddr);
1431 ip6h = (struct ipv6hdr *)buf->iph;
1432 irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
1433 irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
1435 loc_port = ntohs(tcph->dest);
1436 rem_port = ntohs(tcph->source);
1437 cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
1438 loc_addr, buf->vlan_valid ? buf->vlan_id : 0xFFFF);
1442 iwqp = cm_node->iwqp;
1443 irdma_rem_ref_cm_node(cm_node);
1445 return &iwqp->sc_qp;
1449 * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs
1452 void irdma_send_ieq_ack(struct irdma_sc_qp *qp)
1454 struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node;
1455 struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf;
1456 struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1458 cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum;
1459 cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
1461 irdma_send_ack(cm_node);
1465 * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer
1467 * @ah_info: AH info pointer
1469 void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
1470 struct irdma_ah_info *ah_info)
1472 struct irdma_puda_buf *buf = qp->pfpdu.ah_buf;
1474 struct ipv6hdr *ip6h;
1476 memset(ah_info, 0, sizeof(*ah_info));
1477 ah_info->do_lpbk = true;
1478 ah_info->vlan_tag = buf->vlan_id;
1479 ah_info->insert_vlan_tag = buf->vlan_valid;
1480 ah_info->ipv4_valid = buf->ipv4;
1481 ah_info->vsi = qp->vsi;
1483 if (buf->smac_valid)
1484 ether_addr_copy(ah_info->mac_addr, buf->smac);
1487 ah_info->ipv4_valid = true;
1488 iph = (struct iphdr *)buf->iph;
1489 ah_info->hop_ttl = iph->ttl;
1490 ah_info->tc_tos = iph->tos;
1491 ah_info->dest_ip_addr[0] = ntohl(iph->daddr);
1492 ah_info->src_ip_addr[0] = ntohl(iph->saddr);
1494 ip6h = (struct ipv6hdr *)buf->iph;
1495 ah_info->hop_ttl = ip6h->hop_limit;
1496 ah_info->tc_tos = ip6h->priority;
1497 irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
1498 ip6h->daddr.in6_u.u6_addr32);
1499 irdma_copy_ip_ntohl(ah_info->src_ip_addr,
1500 ip6h->saddr.in6_u.u6_addr32);
1503 ah_info->dst_arpindex = irdma_arp_table(dev_to_rf(qp->dev),
1504 ah_info->dest_ip_addr,
1505 ah_info->ipv4_valid,
1506 NULL, IRDMA_ARP_RESOLVE);
1510 * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer
1511 * @buf: puda to update
1512 * @len: length of buffer
1513 * @seqnum: seq number for tcp
1515 static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf,
1516 u16 len, u32 seqnum)
1518 struct tcphdr *tcph;
1522 u8 *addr = buf->mem.va;
1524 iphlen = (buf->ipv4) ? 20 : 40;
1525 iph = (struct iphdr *)(addr + buf->maclen);
1526 tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
1527 pktsize = len + buf->tcphlen + iphlen;
1528 iph->tot_len = htons(pktsize);
1529 tcph->seq = htonl(seqnum);
1533 * irdma_ieq_update_tcpip_info - update tcpip in the buffer
1534 * @buf: puda to update
1535 * @len: length of buffer
1536 * @seqnum: seq number for tcp
1538 void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len,
1541 struct tcphdr *tcph;
1544 if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1545 return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum);
1548 tcph = (struct tcphdr *)addr;
1549 tcph->seq = htonl(seqnum);
1553 * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda
1555 * @info: to get information
1558 static int irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1559 struct irdma_puda_buf *buf)
1562 struct ipv6hdr *ip6h;
1563 struct tcphdr *tcph;
1566 u8 *mem = buf->mem.va;
1567 struct ethhdr *ethh = buf->mem.va;
1569 if (ethh->h_proto == htons(0x8100)) {
1570 info->vlan_valid = true;
1571 buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) &
1575 buf->maclen = (info->vlan_valid) ? 18 : 14;
1576 iphlen = (info->l3proto) ? 40 : 20;
1577 buf->ipv4 = (info->l3proto) ? false : true;
1578 buf->iph = mem + buf->maclen;
1579 iph = (struct iphdr *)buf->iph;
1580 buf->tcph = buf->iph + iphlen;
1581 tcph = (struct tcphdr *)buf->tcph;
1584 pkt_len = ntohs(iph->tot_len);
1586 ip6h = (struct ipv6hdr *)buf->iph;
1587 pkt_len = ntohs(ip6h->payload_len) + iphlen;
1590 buf->totallen = pkt_len + buf->maclen;
1592 if (info->payload_len < buf->totallen) {
1593 ibdev_dbg(to_ibdev(buf->vsi->dev),
1594 "ERR: payload_len = 0x%x totallen expected0x%x\n",
1595 info->payload_len, buf->totallen);
1599 buf->tcphlen = tcph->doff << 2;
1600 buf->datalen = pkt_len - iphlen - buf->tcphlen;
1601 buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1602 buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
1603 buf->seqnum = ntohl(tcph->seq);
1609 * irdma_puda_get_tcpip_info - get tcpip info from puda buffer
1610 * @info: to get information
1613 int irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1614 struct irdma_puda_buf *buf)
1616 struct tcphdr *tcph;
1620 if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1621 return irdma_gen1_puda_get_tcpip_info(info, buf);
1624 buf->vlan_valid = info->vlan_valid;
1625 if (info->vlan_valid)
1626 buf->vlan_id = info->vlan;
1628 buf->ipv4 = info->ipv4;
1630 buf->iph = mem + IRDMA_IPV4_PAD;
1634 buf->tcph = mem + IRDMA_TCP_OFFSET;
1635 tcph = (struct tcphdr *)buf->tcph;
1636 pkt_len = info->payload_len;
1637 buf->totallen = pkt_len;
1638 buf->tcphlen = tcph->doff << 2;
1639 buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen;
1640 buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1641 buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen;
1642 buf->seqnum = ntohl(tcph->seq);
1644 if (info->smac_valid) {
1645 ether_addr_copy(buf->smac, info->smac);
1646 buf->smac_valid = true;
1653 * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats
1654 * @t: timer_list pointer
1656 static void irdma_hw_stats_timeout(struct timer_list *t)
1658 struct irdma_vsi_pestat *pf_devstat =
1659 from_timer(pf_devstat, t, stats_timer);
1660 struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi;
1662 if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
1663 irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false);
1665 irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat);
1667 mod_timer(&pf_devstat->stats_timer,
1668 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1672 * irdma_hw_stats_start_timer - Start periodic stats timer
1673 * @vsi: vsi structure pointer
1675 void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi)
1677 struct irdma_vsi_pestat *devstat = vsi->pestat;
1679 timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0);
1680 mod_timer(&devstat->stats_timer,
1681 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1685 * irdma_hw_stats_stop_timer - Delete periodic stats timer
1686 * @vsi: pointer to vsi structure
1688 void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi)
1690 struct irdma_vsi_pestat *devstat = vsi->pestat;
1692 del_timer_sync(&devstat->stats_timer);
1696 * irdma_process_stats - Checking for wrap and update stats
1697 * @pestat: stats structure pointer
1699 static inline void irdma_process_stats(struct irdma_vsi_pestat *pestat)
1701 sc_vsi_update_stats(pestat->vsi);
1705 * irdma_cqp_gather_stats_gen1 - Gather stats
1706 * @dev: pointer to device structure
1707 * @pestat: statistics structure
1709 void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev,
1710 struct irdma_vsi_pestat *pestat)
1712 struct irdma_gather_stats *gather_stats =
1713 pestat->gather_info.gather_stats_va;
1714 const struct irdma_hw_stat_map *map = dev->hw_stats_map;
1715 u16 max_stats_idx = dev->hw_attrs.max_stat_idx;
1716 u32 stats_inst_offset_32;
1717 u32 stats_inst_offset_64;
1721 stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ?
1722 pestat->gather_info.stats_inst_index :
1723 pestat->hw->hmc.hmc_fn_id;
1724 stats_inst_offset_32 *= 4;
1725 stats_inst_offset_64 = stats_inst_offset_32 * 2;
1727 for (i = 0; i < max_stats_idx; i++) {
1728 if (map[i].bitmask <= IRDMA_MAX_STATS_32)
1729 new_val = rd32(dev->hw,
1730 dev->hw_stats_regs[i] + stats_inst_offset_32);
1732 new_val = rd64(dev->hw,
1733 dev->hw_stats_regs[i] + stats_inst_offset_64);
1734 gather_stats->val[map[i].byteoff / sizeof(u64)] = new_val;
1737 irdma_process_stats(pestat);
1741 * irdma_process_cqp_stats - Checking for wrap and update stats
1742 * @cqp_request: cqp_request structure pointer
1744 static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request)
1746 struct irdma_vsi_pestat *pestat = cqp_request->param;
1748 irdma_process_stats(pestat);
1752 * irdma_cqp_gather_stats_cmd - Gather stats
1753 * @dev: pointer to device structure
1754 * @pestat: pointer to stats info
1755 * @wait: flag to wait or not wait for stats
1757 int irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev,
1758 struct irdma_vsi_pestat *pestat, bool wait)
1761 struct irdma_pci_f *rf = dev_to_rf(dev);
1762 struct irdma_cqp *iwcqp = &rf->cqp;
1763 struct irdma_cqp_request *cqp_request;
1764 struct cqp_cmds_info *cqp_info;
1767 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1771 cqp_info = &cqp_request->info;
1772 memset(cqp_info, 0, sizeof(*cqp_info));
1773 cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER;
1774 cqp_info->post_sq = 1;
1775 cqp_info->in.u.stats_gather.info = pestat->gather_info;
1776 cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request;
1777 cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp;
1778 cqp_request->param = pestat;
1780 cqp_request->callback_fcn = irdma_process_cqp_stats;
1781 status = irdma_handle_cqp_op(rf, cqp_request);
1783 irdma_process_stats(pestat);
1784 irdma_put_cqp_request(&rf->cqp, cqp_request);
1790 * irdma_cqp_stats_inst_cmd - Allocate/free stats instance
1791 * @vsi: pointer to vsi structure
1792 * @cmd: command to allocate or free
1793 * @stats_info: pointer to allocate stats info
1795 int irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd,
1796 struct irdma_stats_inst_info *stats_info)
1798 struct irdma_pci_f *rf = dev_to_rf(vsi->dev);
1799 struct irdma_cqp *iwcqp = &rf->cqp;
1800 struct irdma_cqp_request *cqp_request;
1801 struct cqp_cmds_info *cqp_info;
1805 if (cmd == IRDMA_OP_STATS_ALLOCATE)
1807 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1811 cqp_info = &cqp_request->info;
1812 memset(cqp_info, 0, sizeof(*cqp_info));
1813 cqp_info->cqp_cmd = cmd;
1814 cqp_info->post_sq = 1;
1815 cqp_info->in.u.stats_manage.info = *stats_info;
1816 cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request;
1817 cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp;
1818 status = irdma_handle_cqp_op(rf, cqp_request);
1820 stats_info->stats_idx = cqp_request->compl_info.op_ret_val;
1821 irdma_put_cqp_request(iwcqp, cqp_request);
1827 * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0
1828 * @dev: pointer to device info
1829 * @sc_ceq: pointer to ceq structure
1830 * @op: Create or Destroy
1832 int irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_ceq *sc_ceq,
1835 struct irdma_cqp_request *cqp_request;
1836 struct cqp_cmds_info *cqp_info;
1837 struct irdma_pci_f *rf = dev_to_rf(dev);
1840 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1844 cqp_info = &cqp_request->info;
1845 cqp_info->post_sq = 1;
1846 cqp_info->cqp_cmd = op;
1847 cqp_info->in.u.ceq_create.ceq = sc_ceq;
1848 cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request;
1850 status = irdma_handle_cqp_op(rf, cqp_request);
1851 irdma_put_cqp_request(&rf->cqp, cqp_request);
1857 * irdma_cqp_aeq_cmd - Create/Destroy AEQ
1858 * @dev: pointer to device info
1859 * @sc_aeq: pointer to aeq structure
1860 * @op: Create or Destroy
1862 int irdma_cqp_aeq_cmd(struct irdma_sc_dev *dev, struct irdma_sc_aeq *sc_aeq,
1865 struct irdma_cqp_request *cqp_request;
1866 struct cqp_cmds_info *cqp_info;
1867 struct irdma_pci_f *rf = dev_to_rf(dev);
1870 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1874 cqp_info = &cqp_request->info;
1875 cqp_info->post_sq = 1;
1876 cqp_info->cqp_cmd = op;
1877 cqp_info->in.u.aeq_create.aeq = sc_aeq;
1878 cqp_info->in.u.aeq_create.scratch = (uintptr_t)cqp_request;
1880 status = irdma_handle_cqp_op(rf, cqp_request);
1881 irdma_put_cqp_request(&rf->cqp, cqp_request);
1887 * irdma_cqp_ws_node_cmd - Add/modify/delete ws node
1888 * @dev: pointer to device structure
1889 * @cmd: Add, modify or delete
1890 * @node_info: pointer to ws node info
1892 int irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd,
1893 struct irdma_ws_node_info *node_info)
1895 struct irdma_pci_f *rf = dev_to_rf(dev);
1896 struct irdma_cqp *iwcqp = &rf->cqp;
1897 struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
1898 struct irdma_cqp_request *cqp_request;
1899 struct cqp_cmds_info *cqp_info;
1903 if (!rf->sc_dev.ceq_valid)
1908 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, !poll);
1912 cqp_info = &cqp_request->info;
1913 memset(cqp_info, 0, sizeof(*cqp_info));
1914 cqp_info->cqp_cmd = cmd;
1915 cqp_info->post_sq = 1;
1916 cqp_info->in.u.ws_node.info = *node_info;
1917 cqp_info->in.u.ws_node.cqp = cqp;
1918 cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request;
1919 status = irdma_handle_cqp_op(rf, cqp_request);
1924 struct irdma_ccq_cqe_info compl_info;
1926 status = irdma_sc_poll_for_cqp_op_done(cqp, IRDMA_CQP_OP_WORK_SCHED_NODE,
1928 node_info->qs_handle = compl_info.op_ret_val;
1929 ibdev_dbg(&rf->iwdev->ibdev, "DCB: opcode=%d, compl_info.retval=%d\n",
1930 compl_info.op_code, compl_info.op_ret_val);
1932 node_info->qs_handle = cqp_request->compl_info.op_ret_val;
1936 irdma_put_cqp_request(&rf->cqp, cqp_request);
1942 * irdma_ah_cqp_op - perform an AH cqp operation
1943 * @rf: RDMA PCI function
1944 * @sc_ah: address handle
1945 * @cmd: AH operation
1946 * @wait: wait if true
1947 * @callback_fcn: Callback function on CQP op completion
1948 * @cb_param: parameter for callback function
1952 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
1954 void (*callback_fcn)(struct irdma_cqp_request *),
1957 struct irdma_cqp_request *cqp_request;
1958 struct cqp_cmds_info *cqp_info;
1961 if (cmd != IRDMA_OP_AH_CREATE && cmd != IRDMA_OP_AH_DESTROY)
1964 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1968 cqp_info = &cqp_request->info;
1969 cqp_info->cqp_cmd = cmd;
1970 cqp_info->post_sq = 1;
1971 if (cmd == IRDMA_OP_AH_CREATE) {
1972 cqp_info->in.u.ah_create.info = sc_ah->ah_info;
1973 cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request;
1974 cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp;
1975 } else if (cmd == IRDMA_OP_AH_DESTROY) {
1976 cqp_info->in.u.ah_destroy.info = sc_ah->ah_info;
1977 cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request;
1978 cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp;
1982 cqp_request->callback_fcn = callback_fcn;
1983 cqp_request->param = cb_param;
1985 status = irdma_handle_cqp_op(rf, cqp_request);
1986 irdma_put_cqp_request(&rf->cqp, cqp_request);
1992 sc_ah->ah_info.ah_valid = (cmd == IRDMA_OP_AH_CREATE);
1998 * irdma_ieq_ah_cb - callback after creation of AH for IEQ
1999 * @cqp_request: pointer to cqp_request of create AH
2001 static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request)
2003 struct irdma_sc_qp *qp = cqp_request->param;
2004 struct irdma_sc_ah *sc_ah = qp->pfpdu.ah;
2005 unsigned long flags;
2007 spin_lock_irqsave(&qp->pfpdu.lock, flags);
2008 if (!cqp_request->compl_info.op_ret_val) {
2009 sc_ah->ah_info.ah_valid = true;
2010 irdma_ieq_process_fpdus(qp, qp->vsi->ieq);
2012 sc_ah->ah_info.ah_valid = false;
2013 irdma_ieq_cleanup_qp(qp->vsi->ieq, qp);
2015 spin_unlock_irqrestore(&qp->pfpdu.lock, flags);
2019 * irdma_ilq_ah_cb - callback after creation of AH for ILQ
2020 * @cqp_request: pointer to cqp_request of create AH
2022 static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request)
2024 struct irdma_cm_node *cm_node = cqp_request->param;
2025 struct irdma_sc_ah *sc_ah = cm_node->ah;
2027 sc_ah->ah_info.ah_valid = !cqp_request->compl_info.op_ret_val;
2028 irdma_add_conn_est_qh(cm_node);
2032 * irdma_puda_create_ah - create AH for ILQ/IEQ qp's
2033 * @dev: device pointer
2034 * @ah_info: Address handle info
2035 * @wait: When true will wait for operation to complete
2037 * @cb_param: Callback param when not waiting
2038 * @ah_ret: Returned pointer to address handle if created
2041 int irdma_puda_create_ah(struct irdma_sc_dev *dev,
2042 struct irdma_ah_info *ah_info, bool wait,
2043 enum puda_rsrc_type type, void *cb_param,
2044 struct irdma_sc_ah **ah_ret)
2046 struct irdma_sc_ah *ah;
2047 struct irdma_pci_f *rf = dev_to_rf(dev);
2050 ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
2055 err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah,
2056 &ah_info->ah_idx, &rf->next_ah);
2061 ah->ah_info = *ah_info;
2063 if (type == IRDMA_PUDA_RSRC_TYPE_ILQ)
2064 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2065 irdma_ilq_ah_cb, cb_param);
2067 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2068 irdma_ieq_ah_cb, cb_param);
2075 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2083 * irdma_puda_free_ah - free a puda address handle
2084 * @dev: device pointer
2085 * @ah: The address handle to free
2087 void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah)
2089 struct irdma_pci_f *rf = dev_to_rf(dev);
2094 if (ah->ah_info.ah_valid) {
2095 irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL);
2096 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2103 * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP
2104 * @cqp_request: pointer to cqp_request of create AH
2106 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request)
2108 struct irdma_sc_ah *sc_ah = cqp_request->param;
2110 if (!cqp_request->compl_info.op_ret_val)
2111 sc_ah->ah_info.ah_valid = true;
2113 sc_ah->ah_info.ah_valid = false;
2117 * irdma_prm_add_pble_mem - add moemory to pble resources
2118 * @pprm: pble resource manager
2119 * @pchunk: chunk of memory to add
2121 int irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
2122 struct irdma_chunk *pchunk)
2126 if (pchunk->size & 0xfff)
2129 sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift;
2131 pchunk->bitmapbuf = bitmap_zalloc(sizeofbitmap, GFP_KERNEL);
2132 if (!pchunk->bitmapbuf)
2135 pchunk->sizeofbitmap = sizeofbitmap;
2136 /* each pble is 8 bytes hence shift by 3 */
2137 pprm->total_pble_alloc += pchunk->size >> 3;
2138 pprm->free_pble_cnt += pchunk->size >> 3;
2144 * irdma_prm_get_pbles - get pble's from prm
2145 * @pprm: pble resource manager
2146 * @chunkinfo: nformation about chunk where pble's were acquired
2147 * @mem_size: size of pble memory needed
2148 * @vaddr: returns virtual address of pble memory
2149 * @fpm_addr: returns fpm address of pble memory
2151 int irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
2152 struct irdma_pble_chunkinfo *chunkinfo, u64 mem_size,
2153 u64 **vaddr, u64 *fpm_addr)
2156 u64 bit_idx = PBLE_INVALID_IDX;
2157 struct irdma_chunk *pchunk = NULL;
2158 struct list_head *chunk_entry = pprm->clist.next;
2160 unsigned long flags;
2164 bits_needed = DIV_ROUND_UP_ULL(mem_size, BIT_ULL(pprm->pble_shift));
2166 spin_lock_irqsave(&pprm->prm_lock, flags);
2167 while (chunk_entry != &pprm->clist) {
2168 pchunk = (struct irdma_chunk *)chunk_entry;
2169 bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf,
2170 pchunk->sizeofbitmap, 0,
2172 if (bit_idx < pchunk->sizeofbitmap)
2175 /* list.next used macro */
2176 chunk_entry = pchunk->list.next;
2179 if (!pchunk || bit_idx >= pchunk->sizeofbitmap) {
2180 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2184 bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed);
2185 offset = bit_idx << pprm->pble_shift;
2186 *vaddr = pchunk->vaddr + offset;
2187 *fpm_addr = pchunk->fpm_addr + offset;
2189 chunkinfo->pchunk = pchunk;
2190 chunkinfo->bit_idx = bit_idx;
2191 chunkinfo->bits_used = bits_needed;
2192 /* 3 is sizeof pble divide */
2193 pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3);
2194 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2200 * irdma_prm_return_pbles - return pbles back to prm
2201 * @pprm: pble resource manager
2202 * @chunkinfo: chunk where pble's were acquired and to be freed
2204 void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
2205 struct irdma_pble_chunkinfo *chunkinfo)
2207 unsigned long flags;
2209 spin_lock_irqsave(&pprm->prm_lock, flags);
2210 pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3);
2211 bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx,
2212 chunkinfo->bits_used);
2213 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2216 int irdma_map_vm_page_list(struct irdma_hw *hw, void *va, dma_addr_t *pg_dma,
2219 struct page *vm_page;
2223 addr = (u8 *)(uintptr_t)va;
2224 for (i = 0; i < pg_cnt; i++) {
2225 vm_page = vmalloc_to_page(addr);
2229 pg_dma[i] = dma_map_page(hw->device, vm_page, 0, PAGE_SIZE,
2231 if (dma_mapping_error(hw->device, pg_dma[i]))
2240 irdma_unmap_vm_page_list(hw, pg_dma, i);
2244 void irdma_unmap_vm_page_list(struct irdma_hw *hw, dma_addr_t *pg_dma, u32 pg_cnt)
2248 for (i = 0; i < pg_cnt; i++)
2249 dma_unmap_page(hw->device, pg_dma[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
2253 * irdma_pble_free_paged_mem - free virtual paged memory
2254 * @chunk: chunk to free with paged memory
2256 void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
2261 irdma_unmap_vm_page_list(chunk->dev->hw, chunk->dmainfo.dmaaddrs,
2265 kfree(chunk->dmainfo.dmaaddrs);
2266 chunk->dmainfo.dmaaddrs = NULL;
2267 vfree(chunk->vaddr);
2268 chunk->vaddr = NULL;
2273 * irdma_pble_get_paged_mem -allocate paged memory for pbles
2274 * @chunk: chunk to add for paged memory
2275 * @pg_cnt: number of pages needed
2277 int irdma_pble_get_paged_mem(struct irdma_chunk *chunk, u32 pg_cnt)
2282 chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
2283 if (!chunk->dmainfo.dmaaddrs)
2286 size = PAGE_SIZE * pg_cnt;
2291 if (irdma_map_vm_page_list(chunk->dev->hw, va, chunk->dmainfo.dmaaddrs,
2298 chunk->pg_cnt = pg_cnt;
2299 chunk->type = PBLE_SD_PAGED;
2303 kfree(chunk->dmainfo.dmaaddrs);
2304 chunk->dmainfo.dmaaddrs = NULL;
2310 * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID
2311 * @dev: device pointer
2313 u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev)
2315 struct irdma_pci_f *rf = dev_to_rf(dev);
2319 if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id,
2321 return IRDMA_WS_NODE_INVALID;
2323 return (u16)node_id;
2327 * irdma_free_ws_node_id - Free a tx scheduler node ID
2328 * @dev: device pointer
2329 * @node_id: Work scheduler node ID
2331 void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id)
2333 struct irdma_pci_f *rf = dev_to_rf(dev);
2335 irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id);
2339 * irdma_modify_qp_to_err - Modify a QP to error
2340 * @sc_qp: qp structure
2342 void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp)
2344 struct irdma_qp *qp = sc_qp->qp_uk.back_qp;
2345 struct ib_qp_attr attr;
2347 if (qp->iwdev->rf->reset)
2349 attr.qp_state = IB_QPS_ERR;
2351 if (rdma_protocol_roce(qp->ibqp.device, 1))
2352 irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2354 irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2357 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event)
2359 struct ib_event ibevent;
2361 if (!iwqp->ibqp.event_handler)
2365 case IRDMA_QP_EVENT_CATASTROPHIC:
2366 ibevent.event = IB_EVENT_QP_FATAL;
2368 case IRDMA_QP_EVENT_ACCESS_ERR:
2369 ibevent.event = IB_EVENT_QP_ACCESS_ERR;
2371 case IRDMA_QP_EVENT_REQ_ERR:
2372 ibevent.event = IB_EVENT_QP_REQ_ERR;
2375 ibevent.device = iwqp->ibqp.device;
2376 ibevent.element.qp = &iwqp->ibqp;
2377 iwqp->ibqp.event_handler(&ibevent, iwqp->ibqp.qp_context);
2380 bool irdma_cq_empty(struct irdma_cq *iwcq)
2382 struct irdma_cq_uk *ukcq;
2387 ukcq = &iwcq->sc_cq.cq_uk;
2388 cqe = IRDMA_GET_CURRENT_CQ_ELEM(ukcq);
2389 get_64bit_val(cqe, 24, &qword3);
2390 polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
2392 return polarity != ukcq->polarity;
2395 void irdma_remove_cmpls_list(struct irdma_cq *iwcq)
2397 struct irdma_cmpl_gen *cmpl_node;
2398 struct list_head *tmp_node, *list_node;
2400 list_for_each_safe (list_node, tmp_node, &iwcq->cmpl_generated) {
2401 cmpl_node = list_entry(list_node, struct irdma_cmpl_gen, list);
2402 list_del(&cmpl_node->list);
2407 int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info)
2409 struct irdma_cmpl_gen *cmpl;
2411 if (list_empty(&iwcq->cmpl_generated))
2413 cmpl = list_first_entry_or_null(&iwcq->cmpl_generated, struct irdma_cmpl_gen, list);
2414 list_del(&cmpl->list);
2415 memcpy(cq_poll_info, &cmpl->cpi, sizeof(*cq_poll_info));
2418 ibdev_dbg(iwcq->ibcq.device,
2419 "VERBS: %s: Poll artificially generated completion for QP 0x%X, op %u, wr_id=0x%llx\n",
2420 __func__, cq_poll_info->qp_id, cq_poll_info->op_type,
2421 cq_poll_info->wr_id);
2427 * irdma_set_cpi_common_values - fill in values for polling info struct
2428 * @cpi: resulting structure of cq_poll_info type
2430 * @qp_num: id of the QP
2432 static void irdma_set_cpi_common_values(struct irdma_cq_poll_info *cpi,
2433 struct irdma_qp_uk *qp, u32 qp_num)
2435 cpi->comp_status = IRDMA_COMPL_STATUS_FLUSHED;
2437 cpi->major_err = IRDMA_FLUSH_MAJOR_ERR;
2438 cpi->minor_err = FLUSH_GENERAL_ERR;
2439 cpi->qp_handle = (irdma_qp_handle)(uintptr_t)qp;
2440 cpi->qp_id = qp_num;
2443 static inline void irdma_comp_handler(struct irdma_cq *cq)
2445 if (!cq->ibcq.comp_handler)
2447 if (atomic_cmpxchg(&cq->armed, 1, 0))
2448 cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
2451 void irdma_generate_flush_completions(struct irdma_qp *iwqp)
2453 struct irdma_qp_uk *qp = &iwqp->sc_qp.qp_uk;
2454 struct irdma_ring *sq_ring = &qp->sq_ring;
2455 struct irdma_ring *rq_ring = &qp->rq_ring;
2456 struct irdma_cmpl_gen *cmpl;
2460 bool compl_generated = false;
2461 unsigned long flags1;
2463 spin_lock_irqsave(&iwqp->iwscq->lock, flags1);
2464 if (irdma_cq_empty(iwqp->iwscq)) {
2465 unsigned long flags2;
2467 spin_lock_irqsave(&iwqp->lock, flags2);
2468 while (IRDMA_RING_MORE_WORK(*sq_ring)) {
2469 cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2471 spin_unlock_irqrestore(&iwqp->lock, flags2);
2472 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2476 wqe_idx = sq_ring->tail;
2477 irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2479 cmpl->cpi.wr_id = qp->sq_wrtrk_array[wqe_idx].wrid;
2480 sw_wqe = qp->sq_base[wqe_idx].elem;
2481 get_64bit_val(sw_wqe, 24, &wqe_qword);
2482 cmpl->cpi.op_type = (u8)FIELD_GET(IRDMAQPSQ_OPCODE, IRDMAQPSQ_OPCODE);
2483 cmpl->cpi.q_type = IRDMA_CQE_QTYPE_SQ;
2484 /* remove the SQ WR by moving SQ tail*/
2485 IRDMA_RING_SET_TAIL(*sq_ring,
2486 sq_ring->tail + qp->sq_wrtrk_array[sq_ring->tail].quanta);
2487 if (cmpl->cpi.op_type == IRDMAQP_OP_NOP) {
2491 ibdev_dbg(iwqp->iwscq->ibcq.device,
2492 "DEV: %s: adding wr_id = 0x%llx SQ Completion to list qp_id=%d\n",
2493 __func__, cmpl->cpi.wr_id, qp->qp_id);
2494 list_add_tail(&cmpl->list, &iwqp->iwscq->cmpl_generated);
2495 compl_generated = true;
2497 spin_unlock_irqrestore(&iwqp->lock, flags2);
2498 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2499 if (compl_generated)
2500 irdma_comp_handler(iwqp->iwscq);
2502 spin_unlock_irqrestore(&iwqp->iwscq->lock, flags1);
2503 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2504 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
2507 spin_lock_irqsave(&iwqp->iwrcq->lock, flags1);
2508 if (irdma_cq_empty(iwqp->iwrcq)) {
2509 unsigned long flags2;
2511 spin_lock_irqsave(&iwqp->lock, flags2);
2512 while (IRDMA_RING_MORE_WORK(*rq_ring)) {
2513 cmpl = kzalloc(sizeof(*cmpl), GFP_ATOMIC);
2515 spin_unlock_irqrestore(&iwqp->lock, flags2);
2516 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2520 wqe_idx = rq_ring->tail;
2521 irdma_set_cpi_common_values(&cmpl->cpi, qp, qp->qp_id);
2523 cmpl->cpi.wr_id = qp->rq_wrid_array[wqe_idx];
2524 cmpl->cpi.op_type = IRDMA_OP_TYPE_REC;
2525 cmpl->cpi.q_type = IRDMA_CQE_QTYPE_RQ;
2526 /* remove the RQ WR by moving RQ tail */
2527 IRDMA_RING_SET_TAIL(*rq_ring, rq_ring->tail + 1);
2528 ibdev_dbg(iwqp->iwrcq->ibcq.device,
2529 "DEV: %s: adding wr_id = 0x%llx RQ Completion to list qp_id=%d, wqe_idx=%d\n",
2530 __func__, cmpl->cpi.wr_id, qp->qp_id,
2532 list_add_tail(&cmpl->list, &iwqp->iwrcq->cmpl_generated);
2534 compl_generated = true;
2536 spin_unlock_irqrestore(&iwqp->lock, flags2);
2537 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2538 if (compl_generated)
2539 irdma_comp_handler(iwqp->iwrcq);
2541 spin_unlock_irqrestore(&iwqp->iwrcq->lock, flags1);
2542 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
2543 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));