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 */
irdma_arp_table(struct irdma_pci_f * rf,u32 * ip_addr,bool ipv4,u8 * mac_addr,u32 action)13 int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4,
14 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 */
irdma_add_arp(struct irdma_pci_f * rf,u32 * ip,bool ipv4,u8 * mac)80 int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, 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 */
wr32(struct irdma_hw * hw,u32 reg,u32 val)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 */
rd32(struct irdma_hw * hw,u32 reg)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 */
rd64(struct irdma_hw * hw,u32 reg)128 inline u64 rd64(struct irdma_hw *hw, u32 reg)
129 {
130 return readq(hw->hw_addr + reg);
131 }
132
irdma_gid_change_event(struct ib_device * ibdev)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 */
irdma_inetaddr_event(struct notifier_block * notifier,unsigned long event,void * ptr)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 *netdev = ifa->ifa_dev->dev;
154 struct irdma_device *iwdev;
155 struct ib_device *ibdev;
156 u32 local_ipaddr;
157
158 ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
159 if (!ibdev)
160 return NOTIFY_DONE;
161
162 iwdev = to_iwdev(ibdev);
163 local_ipaddr = ntohl(ifa->ifa_address);
164 ibdev_dbg(&iwdev->ibdev,
165 "DEV: netdev %p event %lu local_ip=%pI4 MAC=%pM\n", netdev,
166 event, &local_ipaddr, netdev->dev_addr);
167 switch (event) {
168 case NETDEV_DOWN:
169 irdma_manage_arp_cache(iwdev->rf, netdev->dev_addr,
170 &local_ipaddr, true, IRDMA_ARP_DELETE);
171 irdma_if_notify(iwdev, netdev, &local_ipaddr, true, false);
172 irdma_gid_change_event(&iwdev->ibdev);
173 break;
174 case NETDEV_UP:
175 case NETDEV_CHANGEADDR:
176 irdma_add_arp(iwdev->rf, &local_ipaddr, true, netdev->dev_addr);
177 irdma_if_notify(iwdev, netdev, &local_ipaddr, true, true);
178 irdma_gid_change_event(&iwdev->ibdev);
179 break;
180 default:
181 break;
182 }
183
184 ib_device_put(ibdev);
185
186 return NOTIFY_DONE;
187 }
188
189 /**
190 * irdma_inet6addr_event - system notifier for ipv6 addr events
191 * @notifier: not used
192 * @event: event for notifier
193 * @ptr: if address
194 */
irdma_inet6addr_event(struct notifier_block * notifier,unsigned long event,void * ptr)195 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
196 void *ptr)
197 {
198 struct inet6_ifaddr *ifa = ptr;
199 struct net_device *netdev = ifa->idev->dev;
200 struct irdma_device *iwdev;
201 struct ib_device *ibdev;
202 u32 local_ipaddr6[4];
203
204 ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
205 if (!ibdev)
206 return NOTIFY_DONE;
207
208 iwdev = to_iwdev(ibdev);
209 irdma_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
210 ibdev_dbg(&iwdev->ibdev,
211 "DEV: netdev %p event %lu local_ip=%pI6 MAC=%pM\n", netdev,
212 event, local_ipaddr6, netdev->dev_addr);
213 switch (event) {
214 case NETDEV_DOWN:
215 irdma_manage_arp_cache(iwdev->rf, netdev->dev_addr,
216 local_ipaddr6, false, IRDMA_ARP_DELETE);
217 irdma_if_notify(iwdev, netdev, local_ipaddr6, false, false);
218 irdma_gid_change_event(&iwdev->ibdev);
219 break;
220 case NETDEV_UP:
221 case NETDEV_CHANGEADDR:
222 irdma_add_arp(iwdev->rf, local_ipaddr6, false,
223 netdev->dev_addr);
224 irdma_if_notify(iwdev, netdev, local_ipaddr6, false, true);
225 irdma_gid_change_event(&iwdev->ibdev);
226 break;
227 default:
228 break;
229 }
230
231 ib_device_put(ibdev);
232
233 return NOTIFY_DONE;
234 }
235
236 /**
237 * irdma_net_event - system notifier for net events
238 * @notifier: not used
239 * @event: event for notifier
240 * @ptr: neighbor
241 */
irdma_net_event(struct notifier_block * notifier,unsigned long event,void * ptr)242 int irdma_net_event(struct notifier_block *notifier, unsigned long event,
243 void *ptr)
244 {
245 struct neighbour *neigh = ptr;
246 struct irdma_device *iwdev;
247 struct ib_device *ibdev;
248 __be32 *p;
249 u32 local_ipaddr[4] = {};
250 bool ipv4 = true;
251
252 ibdev = ib_device_get_by_netdev((struct net_device *)neigh->dev,
253 RDMA_DRIVER_IRDMA);
254 if (!ibdev)
255 return NOTIFY_DONE;
256
257 iwdev = to_iwdev(ibdev);
258
259 switch (event) {
260 case NETEVENT_NEIGH_UPDATE:
261 p = (__be32 *)neigh->primary_key;
262 if (neigh->tbl->family == AF_INET6) {
263 ipv4 = false;
264 irdma_copy_ip_ntohl(local_ipaddr, p);
265 } else {
266 local_ipaddr[0] = ntohl(*p);
267 }
268
269 ibdev_dbg(&iwdev->ibdev,
270 "DEV: netdev %p state %d local_ip=%pI4 MAC=%pM\n",
271 iwdev->netdev, neigh->nud_state, local_ipaddr,
272 neigh->ha);
273
274 if (neigh->nud_state & NUD_VALID)
275 irdma_add_arp(iwdev->rf, local_ipaddr, ipv4, neigh->ha);
276
277 else
278 irdma_manage_arp_cache(iwdev->rf, neigh->ha,
279 local_ipaddr, ipv4,
280 IRDMA_ARP_DELETE);
281 break;
282 default:
283 break;
284 }
285
286 ib_device_put(ibdev);
287
288 return NOTIFY_DONE;
289 }
290
291 /**
292 * irdma_netdevice_event - system notifier for netdev events
293 * @notifier: not used
294 * @event: event for notifier
295 * @ptr: netdev
296 */
irdma_netdevice_event(struct notifier_block * notifier,unsigned long event,void * ptr)297 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
298 void *ptr)
299 {
300 struct irdma_device *iwdev;
301 struct ib_device *ibdev;
302 struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
303
304 ibdev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_IRDMA);
305 if (!ibdev)
306 return NOTIFY_DONE;
307
308 iwdev = to_iwdev(ibdev);
309 iwdev->iw_status = 1;
310 switch (event) {
311 case NETDEV_DOWN:
312 iwdev->iw_status = 0;
313 fallthrough;
314 case NETDEV_UP:
315 irdma_port_ibevent(iwdev);
316 break;
317 default:
318 break;
319 }
320 ib_device_put(ibdev);
321
322 return NOTIFY_DONE;
323 }
324
325 /**
326 * irdma_add_ipv6_addr - add ipv6 address to the hw arp table
327 * @iwdev: irdma device
328 */
irdma_add_ipv6_addr(struct irdma_device * iwdev)329 static void irdma_add_ipv6_addr(struct irdma_device *iwdev)
330 {
331 struct net_device *ip_dev;
332 struct inet6_dev *idev;
333 struct inet6_ifaddr *ifp, *tmp;
334 u32 local_ipaddr6[4];
335
336 rcu_read_lock();
337 for_each_netdev_rcu (&init_net, ip_dev) {
338 if (((rdma_vlan_dev_vlan_id(ip_dev) < 0xFFFF &&
339 rdma_vlan_dev_real_dev(ip_dev) == iwdev->netdev) ||
340 ip_dev == iwdev->netdev) &&
341 (READ_ONCE(ip_dev->flags) & IFF_UP)) {
342 idev = __in6_dev_get(ip_dev);
343 if (!idev) {
344 ibdev_err(&iwdev->ibdev, "ipv6 inet device not found\n");
345 break;
346 }
347 list_for_each_entry_safe (ifp, tmp, &idev->addr_list,
348 if_list) {
349 ibdev_dbg(&iwdev->ibdev,
350 "INIT: IP=%pI6, vlan_id=%d, MAC=%pM\n",
351 &ifp->addr,
352 rdma_vlan_dev_vlan_id(ip_dev),
353 ip_dev->dev_addr);
354
355 irdma_copy_ip_ntohl(local_ipaddr6,
356 ifp->addr.in6_u.u6_addr32);
357 irdma_manage_arp_cache(iwdev->rf,
358 ip_dev->dev_addr,
359 local_ipaddr6, false,
360 IRDMA_ARP_ADD);
361 }
362 }
363 }
364 rcu_read_unlock();
365 }
366
367 /**
368 * irdma_add_ipv4_addr - add ipv4 address to the hw arp table
369 * @iwdev: irdma device
370 */
irdma_add_ipv4_addr(struct irdma_device * iwdev)371 static void irdma_add_ipv4_addr(struct irdma_device *iwdev)
372 {
373 struct net_device *dev;
374 struct in_device *idev;
375 u32 ip_addr;
376
377 rcu_read_lock();
378 for_each_netdev_rcu (&init_net, dev) {
379 if (((rdma_vlan_dev_vlan_id(dev) < 0xFFFF &&
380 rdma_vlan_dev_real_dev(dev) == iwdev->netdev) ||
381 dev == iwdev->netdev) && (READ_ONCE(dev->flags) & IFF_UP)) {
382 const struct in_ifaddr *ifa;
383
384 idev = __in_dev_get_rcu(dev);
385 if (!idev)
386 continue;
387
388 in_dev_for_each_ifa_rcu(ifa, idev) {
389 ibdev_dbg(&iwdev->ibdev, "CM: IP=%pI4, vlan_id=%d, MAC=%pM\n",
390 &ifa->ifa_address, rdma_vlan_dev_vlan_id(dev),
391 dev->dev_addr);
392
393 ip_addr = ntohl(ifa->ifa_address);
394 irdma_manage_arp_cache(iwdev->rf, dev->dev_addr,
395 &ip_addr, true,
396 IRDMA_ARP_ADD);
397 }
398 }
399 }
400 rcu_read_unlock();
401 }
402
403 /**
404 * irdma_add_ip - add ip addresses
405 * @iwdev: irdma device
406 *
407 * Add ipv4/ipv6 addresses to the arp cache
408 */
irdma_add_ip(struct irdma_device * iwdev)409 void irdma_add_ip(struct irdma_device *iwdev)
410 {
411 irdma_add_ipv4_addr(iwdev);
412 irdma_add_ipv6_addr(iwdev);
413 }
414
415 /**
416 * irdma_alloc_and_get_cqp_request - get cqp struct
417 * @cqp: device cqp ptr
418 * @wait: cqp to be used in wait mode
419 */
irdma_alloc_and_get_cqp_request(struct irdma_cqp * cqp,bool wait)420 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
421 bool wait)
422 {
423 struct irdma_cqp_request *cqp_request = NULL;
424 unsigned long flags;
425
426 spin_lock_irqsave(&cqp->req_lock, flags);
427 if (!list_empty(&cqp->cqp_avail_reqs)) {
428 cqp_request = list_first_entry(&cqp->cqp_avail_reqs,
429 struct irdma_cqp_request, list);
430 list_del_init(&cqp_request->list);
431 }
432 spin_unlock_irqrestore(&cqp->req_lock, flags);
433 if (!cqp_request) {
434 cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC);
435 if (cqp_request) {
436 cqp_request->dynamic = true;
437 if (wait)
438 init_waitqueue_head(&cqp_request->waitq);
439 }
440 }
441 if (!cqp_request) {
442 ibdev_dbg(to_ibdev(cqp->sc_cqp.dev), "ERR: CQP Request Fail: No Memory");
443 return NULL;
444 }
445
446 cqp_request->waiting = wait;
447 refcount_set(&cqp_request->refcnt, 1);
448 memset(&cqp_request->compl_info, 0, sizeof(cqp_request->compl_info));
449
450 return cqp_request;
451 }
452
453 /**
454 * irdma_get_cqp_request - increase refcount for cqp_request
455 * @cqp_request: pointer to cqp_request instance
456 */
irdma_get_cqp_request(struct irdma_cqp_request * cqp_request)457 static inline void irdma_get_cqp_request(struct irdma_cqp_request *cqp_request)
458 {
459 refcount_inc(&cqp_request->refcnt);
460 }
461
462 /**
463 * irdma_free_cqp_request - free cqp request
464 * @cqp: cqp ptr
465 * @cqp_request: to be put back in cqp list
466 */
irdma_free_cqp_request(struct irdma_cqp * cqp,struct irdma_cqp_request * cqp_request)467 void irdma_free_cqp_request(struct irdma_cqp *cqp,
468 struct irdma_cqp_request *cqp_request)
469 {
470 unsigned long flags;
471
472 if (cqp_request->dynamic) {
473 kfree(cqp_request);
474 } else {
475 cqp_request->request_done = false;
476 cqp_request->callback_fcn = NULL;
477 cqp_request->waiting = false;
478
479 spin_lock_irqsave(&cqp->req_lock, flags);
480 list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs);
481 spin_unlock_irqrestore(&cqp->req_lock, flags);
482 }
483 wake_up(&cqp->remove_wq);
484 }
485
486 /**
487 * irdma_put_cqp_request - dec ref count and free if 0
488 * @cqp: cqp ptr
489 * @cqp_request: to be put back in cqp list
490 */
irdma_put_cqp_request(struct irdma_cqp * cqp,struct irdma_cqp_request * cqp_request)491 void irdma_put_cqp_request(struct irdma_cqp *cqp,
492 struct irdma_cqp_request *cqp_request)
493 {
494 if (refcount_dec_and_test(&cqp_request->refcnt))
495 irdma_free_cqp_request(cqp, cqp_request);
496 }
497
498 /**
499 * irdma_free_pending_cqp_request -free pending cqp request objs
500 * @cqp: cqp ptr
501 * @cqp_request: to be put back in cqp list
502 */
503 static void
irdma_free_pending_cqp_request(struct irdma_cqp * cqp,struct irdma_cqp_request * cqp_request)504 irdma_free_pending_cqp_request(struct irdma_cqp *cqp,
505 struct irdma_cqp_request *cqp_request)
506 {
507 if (cqp_request->waiting) {
508 cqp_request->compl_info.error = true;
509 cqp_request->request_done = true;
510 wake_up(&cqp_request->waitq);
511 }
512 wait_event_timeout(cqp->remove_wq,
513 refcount_read(&cqp_request->refcnt) == 1, 1000);
514 irdma_put_cqp_request(cqp, cqp_request);
515 }
516
517 /**
518 * irdma_cleanup_pending_cqp_op - clean-up cqp with no
519 * completions
520 * @rf: RDMA PCI function
521 */
irdma_cleanup_pending_cqp_op(struct irdma_pci_f * rf)522 void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf)
523 {
524 struct irdma_sc_dev *dev = &rf->sc_dev;
525 struct irdma_cqp *cqp = &rf->cqp;
526 struct irdma_cqp_request *cqp_request = NULL;
527 struct cqp_cmds_info *pcmdinfo = NULL;
528 u32 i, pending_work, wqe_idx;
529
530 pending_work = IRDMA_RING_USED_QUANTA(cqp->sc_cqp.sq_ring);
531 wqe_idx = IRDMA_RING_CURRENT_TAIL(cqp->sc_cqp.sq_ring);
532 for (i = 0; i < pending_work; i++) {
533 cqp_request = (struct irdma_cqp_request *)(unsigned long)
534 cqp->scratch_array[wqe_idx];
535 if (cqp_request)
536 irdma_free_pending_cqp_request(cqp, cqp_request);
537 wqe_idx = (wqe_idx + 1) % IRDMA_RING_SIZE(cqp->sc_cqp.sq_ring);
538 }
539
540 while (!list_empty(&dev->cqp_cmd_head)) {
541 pcmdinfo = irdma_remove_cqp_head(dev);
542 cqp_request =
543 container_of(pcmdinfo, struct irdma_cqp_request, info);
544 if (cqp_request)
545 irdma_free_pending_cqp_request(cqp, cqp_request);
546 }
547 }
548
549 /**
550 * irdma_wait_event - wait for completion
551 * @rf: RDMA PCI function
552 * @cqp_request: cqp request to wait
553 */
irdma_wait_event(struct irdma_pci_f * rf,struct irdma_cqp_request * cqp_request)554 static enum irdma_status_code irdma_wait_event(struct irdma_pci_f *rf,
555 struct irdma_cqp_request *cqp_request)
556 {
557 struct irdma_cqp_timeout cqp_timeout = {};
558 bool cqp_error = false;
559 enum irdma_status_code err_code = 0;
560
561 cqp_timeout.compl_cqp_cmds = rf->sc_dev.cqp_cmd_stats[IRDMA_OP_CMPL_CMDS];
562 do {
563 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
564 if (wait_event_timeout(cqp_request->waitq,
565 cqp_request->request_done,
566 msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS)))
567 break;
568
569 irdma_check_cqp_progress(&cqp_timeout, &rf->sc_dev);
570
571 if (cqp_timeout.count < CQP_TIMEOUT_THRESHOLD)
572 continue;
573
574 if (!rf->reset) {
575 rf->reset = true;
576 rf->gen_ops.request_reset(rf);
577 }
578 return IRDMA_ERR_TIMEOUT;
579 } while (1);
580
581 cqp_error = cqp_request->compl_info.error;
582 if (cqp_error) {
583 err_code = IRDMA_ERR_CQP_COMPL_ERROR;
584 if (cqp_request->compl_info.maj_err_code == 0xFFFF &&
585 cqp_request->compl_info.min_err_code == 0x8029) {
586 if (!rf->reset) {
587 rf->reset = true;
588 rf->gen_ops.request_reset(rf);
589 }
590 }
591 }
592
593 return err_code;
594 }
595
596 static const char *const irdma_cqp_cmd_names[IRDMA_MAX_CQP_OPS] = {
597 [IRDMA_OP_CEQ_DESTROY] = "Destroy CEQ Cmd",
598 [IRDMA_OP_AEQ_DESTROY] = "Destroy AEQ Cmd",
599 [IRDMA_OP_DELETE_ARP_CACHE_ENTRY] = "Delete ARP Cache Cmd",
600 [IRDMA_OP_MANAGE_APBVT_ENTRY] = "Manage APBV Table Entry Cmd",
601 [IRDMA_OP_CEQ_CREATE] = "CEQ Create Cmd",
602 [IRDMA_OP_AEQ_CREATE] = "AEQ Destroy Cmd",
603 [IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY] = "Manage Quad Hash Table Entry Cmd",
604 [IRDMA_OP_QP_MODIFY] = "Modify QP Cmd",
605 [IRDMA_OP_QP_UPLOAD_CONTEXT] = "Upload Context Cmd",
606 [IRDMA_OP_CQ_CREATE] = "Create CQ Cmd",
607 [IRDMA_OP_CQ_DESTROY] = "Destroy CQ Cmd",
608 [IRDMA_OP_QP_CREATE] = "Create QP Cmd",
609 [IRDMA_OP_QP_DESTROY] = "Destroy QP Cmd",
610 [IRDMA_OP_ALLOC_STAG] = "Allocate STag Cmd",
611 [IRDMA_OP_MR_REG_NON_SHARED] = "Register Non-Shared MR Cmd",
612 [IRDMA_OP_DEALLOC_STAG] = "Deallocate STag Cmd",
613 [IRDMA_OP_MW_ALLOC] = "Allocate Memory Window Cmd",
614 [IRDMA_OP_QP_FLUSH_WQES] = "Flush QP Cmd",
615 [IRDMA_OP_ADD_ARP_CACHE_ENTRY] = "Add ARP Cache Cmd",
616 [IRDMA_OP_MANAGE_PUSH_PAGE] = "Manage Push Page Cmd",
617 [IRDMA_OP_UPDATE_PE_SDS] = "Update PE SDs Cmd",
618 [IRDMA_OP_MANAGE_HMC_PM_FUNC_TABLE] = "Manage HMC PM Function Table Cmd",
619 [IRDMA_OP_SUSPEND] = "Suspend QP Cmd",
620 [IRDMA_OP_RESUME] = "Resume QP Cmd",
621 [IRDMA_OP_MANAGE_VF_PBLE_BP] = "Manage VF PBLE Backing Pages Cmd",
622 [IRDMA_OP_QUERY_FPM_VAL] = "Query FPM Values Cmd",
623 [IRDMA_OP_COMMIT_FPM_VAL] = "Commit FPM Values Cmd",
624 [IRDMA_OP_AH_CREATE] = "Create Address Handle Cmd",
625 [IRDMA_OP_AH_MODIFY] = "Modify Address Handle Cmd",
626 [IRDMA_OP_AH_DESTROY] = "Destroy Address Handle Cmd",
627 [IRDMA_OP_MC_CREATE] = "Create Multicast Group Cmd",
628 [IRDMA_OP_MC_DESTROY] = "Destroy Multicast Group Cmd",
629 [IRDMA_OP_MC_MODIFY] = "Modify Multicast Group Cmd",
630 [IRDMA_OP_STATS_ALLOCATE] = "Add Statistics Instance Cmd",
631 [IRDMA_OP_STATS_FREE] = "Free Statistics Instance Cmd",
632 [IRDMA_OP_STATS_GATHER] = "Gather Statistics Cmd",
633 [IRDMA_OP_WS_ADD_NODE] = "Add Work Scheduler Node Cmd",
634 [IRDMA_OP_WS_MODIFY_NODE] = "Modify Work Scheduler Node Cmd",
635 [IRDMA_OP_WS_DELETE_NODE] = "Delete Work Scheduler Node Cmd",
636 [IRDMA_OP_SET_UP_MAP] = "Set UP-UP Mapping Cmd",
637 [IRDMA_OP_GEN_AE] = "Generate AE Cmd",
638 [IRDMA_OP_QUERY_RDMA_FEATURES] = "RDMA Get Features Cmd",
639 [IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY] = "Allocate Local MAC Entry Cmd",
640 [IRDMA_OP_ADD_LOCAL_MAC_ENTRY] = "Add Local MAC Entry Cmd",
641 [IRDMA_OP_DELETE_LOCAL_MAC_ENTRY] = "Delete Local MAC Entry Cmd",
642 [IRDMA_OP_CQ_MODIFY] = "CQ Modify Cmd",
643 };
644
645 static const struct irdma_cqp_err_info irdma_noncrit_err_list[] = {
646 {0xffff, 0x8006, "Flush No Wqe Pending"},
647 {0xffff, 0x8007, "Modify QP Bad Close"},
648 {0xffff, 0x8009, "LLP Closed"},
649 {0xffff, 0x800a, "Reset Not Sent"}
650 };
651
652 /**
653 * irdma_cqp_crit_err - check if CQP error is critical
654 * @dev: pointer to dev structure
655 * @cqp_cmd: code for last CQP operation
656 * @maj_err_code: major error code
657 * @min_err_code: minot error code
658 */
irdma_cqp_crit_err(struct irdma_sc_dev * dev,u8 cqp_cmd,u16 maj_err_code,u16 min_err_code)659 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
660 u16 maj_err_code, u16 min_err_code)
661 {
662 int i;
663
664 for (i = 0; i < ARRAY_SIZE(irdma_noncrit_err_list); ++i) {
665 if (maj_err_code == irdma_noncrit_err_list[i].maj &&
666 min_err_code == irdma_noncrit_err_list[i].min) {
667 ibdev_dbg(to_ibdev(dev),
668 "CQP: [%s Error][%s] maj=0x%x min=0x%x\n",
669 irdma_noncrit_err_list[i].desc,
670 irdma_cqp_cmd_names[cqp_cmd], maj_err_code,
671 min_err_code);
672 return false;
673 }
674 }
675 return true;
676 }
677
678 /**
679 * irdma_handle_cqp_op - process cqp command
680 * @rf: RDMA PCI function
681 * @cqp_request: cqp request to process
682 */
irdma_handle_cqp_op(struct irdma_pci_f * rf,struct irdma_cqp_request * cqp_request)683 enum irdma_status_code irdma_handle_cqp_op(struct irdma_pci_f *rf,
684 struct irdma_cqp_request *cqp_request)
685 {
686 struct irdma_sc_dev *dev = &rf->sc_dev;
687 struct cqp_cmds_info *info = &cqp_request->info;
688 enum irdma_status_code status;
689 bool put_cqp_request = true;
690
691 if (rf->reset)
692 return IRDMA_ERR_NOT_READY;
693
694 irdma_get_cqp_request(cqp_request);
695 status = irdma_process_cqp_cmd(dev, info);
696 if (status)
697 goto err;
698
699 if (cqp_request->waiting) {
700 put_cqp_request = false;
701 status = irdma_wait_event(rf, cqp_request);
702 if (status)
703 goto err;
704 }
705
706 return 0;
707
708 err:
709 if (irdma_cqp_crit_err(dev, info->cqp_cmd,
710 cqp_request->compl_info.maj_err_code,
711 cqp_request->compl_info.min_err_code))
712 ibdev_err(&rf->iwdev->ibdev,
713 "[%s Error][op_code=%d] status=%d waiting=%d completion_err=%d maj=0x%x min=0x%x\n",
714 irdma_cqp_cmd_names[info->cqp_cmd], info->cqp_cmd, status, cqp_request->waiting,
715 cqp_request->compl_info.error, cqp_request->compl_info.maj_err_code,
716 cqp_request->compl_info.min_err_code);
717
718 if (put_cqp_request)
719 irdma_put_cqp_request(&rf->cqp, cqp_request);
720
721 return status;
722 }
723
irdma_qp_add_ref(struct ib_qp * ibqp)724 void irdma_qp_add_ref(struct ib_qp *ibqp)
725 {
726 struct irdma_qp *iwqp = (struct irdma_qp *)ibqp;
727
728 refcount_inc(&iwqp->refcnt);
729 }
730
irdma_qp_rem_ref(struct ib_qp * ibqp)731 void irdma_qp_rem_ref(struct ib_qp *ibqp)
732 {
733 struct irdma_qp *iwqp = to_iwqp(ibqp);
734 struct irdma_device *iwdev = iwqp->iwdev;
735 u32 qp_num;
736 unsigned long flags;
737
738 spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
739 if (!refcount_dec_and_test(&iwqp->refcnt)) {
740 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
741 return;
742 }
743
744 qp_num = iwqp->ibqp.qp_num;
745 iwdev->rf->qp_table[qp_num] = NULL;
746 spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
747 complete(&iwqp->free_qp);
748 }
749
to_ibdev(struct irdma_sc_dev * dev)750 struct ib_device *to_ibdev(struct irdma_sc_dev *dev)
751 {
752 return &(container_of(dev, struct irdma_pci_f, sc_dev))->iwdev->ibdev;
753 }
754
755 /**
756 * irdma_get_qp - get qp address
757 * @device: iwarp device
758 * @qpn: qp number
759 */
irdma_get_qp(struct ib_device * device,int qpn)760 struct ib_qp *irdma_get_qp(struct ib_device *device, int qpn)
761 {
762 struct irdma_device *iwdev = to_iwdev(device);
763
764 if (qpn < IW_FIRST_QPN || qpn >= iwdev->rf->max_qp)
765 return NULL;
766
767 return &iwdev->rf->qp_table[qpn]->ibqp;
768 }
769
770 /**
771 * irdma_get_hw_addr - return hw addr
772 * @par: points to shared dev
773 */
irdma_get_hw_addr(void * par)774 u8 __iomem *irdma_get_hw_addr(void *par)
775 {
776 struct irdma_sc_dev *dev = par;
777
778 return dev->hw->hw_addr;
779 }
780
781 /**
782 * irdma_remove_cqp_head - return head entry and remove
783 * @dev: device
784 */
irdma_remove_cqp_head(struct irdma_sc_dev * dev)785 void *irdma_remove_cqp_head(struct irdma_sc_dev *dev)
786 {
787 struct list_head *entry;
788 struct list_head *list = &dev->cqp_cmd_head;
789
790 if (list_empty(list))
791 return NULL;
792
793 entry = list->next;
794 list_del(entry);
795
796 return entry;
797 }
798
799 /**
800 * irdma_cqp_sds_cmd - create cqp command for sd
801 * @dev: hardware control device structure
802 * @sdinfo: information for sd cqp
803 *
804 */
irdma_cqp_sds_cmd(struct irdma_sc_dev * dev,struct irdma_update_sds_info * sdinfo)805 enum irdma_status_code irdma_cqp_sds_cmd(struct irdma_sc_dev *dev,
806 struct irdma_update_sds_info *sdinfo)
807 {
808 struct irdma_cqp_request *cqp_request;
809 struct cqp_cmds_info *cqp_info;
810 struct irdma_pci_f *rf = dev_to_rf(dev);
811 enum irdma_status_code status;
812
813 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
814 if (!cqp_request)
815 return IRDMA_ERR_NO_MEMORY;
816
817 cqp_info = &cqp_request->info;
818 memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo,
819 sizeof(cqp_info->in.u.update_pe_sds.info));
820 cqp_info->cqp_cmd = IRDMA_OP_UPDATE_PE_SDS;
821 cqp_info->post_sq = 1;
822 cqp_info->in.u.update_pe_sds.dev = dev;
823 cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request;
824
825 status = irdma_handle_cqp_op(rf, cqp_request);
826 irdma_put_cqp_request(&rf->cqp, cqp_request);
827
828 return status;
829 }
830
831 /**
832 * irdma_cqp_qp_suspend_resume - cqp command for suspend/resume
833 * @qp: hardware control qp
834 * @op: suspend or resume
835 */
irdma_cqp_qp_suspend_resume(struct irdma_sc_qp * qp,u8 op)836 enum irdma_status_code irdma_cqp_qp_suspend_resume(struct irdma_sc_qp *qp,
837 u8 op)
838 {
839 struct irdma_sc_dev *dev = qp->dev;
840 struct irdma_cqp_request *cqp_request;
841 struct irdma_sc_cqp *cqp = dev->cqp;
842 struct cqp_cmds_info *cqp_info;
843 struct irdma_pci_f *rf = dev_to_rf(dev);
844 enum irdma_status_code status;
845
846 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
847 if (!cqp_request)
848 return IRDMA_ERR_NO_MEMORY;
849
850 cqp_info = &cqp_request->info;
851 cqp_info->cqp_cmd = op;
852 cqp_info->in.u.suspend_resume.cqp = cqp;
853 cqp_info->in.u.suspend_resume.qp = qp;
854 cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request;
855
856 status = irdma_handle_cqp_op(rf, cqp_request);
857 irdma_put_cqp_request(&rf->cqp, cqp_request);
858
859 return status;
860 }
861
862 /**
863 * irdma_term_modify_qp - modify qp for term message
864 * @qp: hardware control qp
865 * @next_state: qp's next state
866 * @term: terminate code
867 * @term_len: length
868 */
irdma_term_modify_qp(struct irdma_sc_qp * qp,u8 next_state,u8 term,u8 term_len)869 void irdma_term_modify_qp(struct irdma_sc_qp *qp, u8 next_state, u8 term,
870 u8 term_len)
871 {
872 struct irdma_qp *iwqp;
873
874 iwqp = qp->qp_uk.back_qp;
875 irdma_next_iw_state(iwqp, next_state, 0, term, term_len);
876 };
877
878 /**
879 * irdma_terminate_done - after terminate is completed
880 * @qp: hardware control qp
881 * @timeout_occurred: indicates if terminate timer expired
882 */
irdma_terminate_done(struct irdma_sc_qp * qp,int timeout_occurred)883 void irdma_terminate_done(struct irdma_sc_qp *qp, int timeout_occurred)
884 {
885 struct irdma_qp *iwqp;
886 u8 hte = 0;
887 bool first_time;
888 unsigned long flags;
889
890 iwqp = qp->qp_uk.back_qp;
891 spin_lock_irqsave(&iwqp->lock, flags);
892 if (iwqp->hte_added) {
893 iwqp->hte_added = 0;
894 hte = 1;
895 }
896 first_time = !(qp->term_flags & IRDMA_TERM_DONE);
897 qp->term_flags |= IRDMA_TERM_DONE;
898 spin_unlock_irqrestore(&iwqp->lock, flags);
899 if (first_time) {
900 if (!timeout_occurred)
901 irdma_terminate_del_timer(qp);
902
903 irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, hte, 0, 0);
904 irdma_cm_disconn(iwqp);
905 }
906 }
907
irdma_terminate_timeout(struct timer_list * t)908 static void irdma_terminate_timeout(struct timer_list *t)
909 {
910 struct irdma_qp *iwqp = from_timer(iwqp, t, terminate_timer);
911 struct irdma_sc_qp *qp = &iwqp->sc_qp;
912
913 irdma_terminate_done(qp, 1);
914 irdma_qp_rem_ref(&iwqp->ibqp);
915 }
916
917 /**
918 * irdma_terminate_start_timer - start terminate timeout
919 * @qp: hardware control qp
920 */
irdma_terminate_start_timer(struct irdma_sc_qp * qp)921 void irdma_terminate_start_timer(struct irdma_sc_qp *qp)
922 {
923 struct irdma_qp *iwqp;
924
925 iwqp = qp->qp_uk.back_qp;
926 irdma_qp_add_ref(&iwqp->ibqp);
927 timer_setup(&iwqp->terminate_timer, irdma_terminate_timeout, 0);
928 iwqp->terminate_timer.expires = jiffies + HZ;
929
930 add_timer(&iwqp->terminate_timer);
931 }
932
933 /**
934 * irdma_terminate_del_timer - delete terminate timeout
935 * @qp: hardware control qp
936 */
irdma_terminate_del_timer(struct irdma_sc_qp * qp)937 void irdma_terminate_del_timer(struct irdma_sc_qp *qp)
938 {
939 struct irdma_qp *iwqp;
940 int ret;
941
942 iwqp = qp->qp_uk.back_qp;
943 ret = del_timer(&iwqp->terminate_timer);
944 if (ret)
945 irdma_qp_rem_ref(&iwqp->ibqp);
946 }
947
948 /**
949 * irdma_cqp_query_fpm_val_cmd - send cqp command for fpm
950 * @dev: function device struct
951 * @val_mem: buffer for fpm
952 * @hmc_fn_id: function id for fpm
953 */
954 enum irdma_status_code
irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev * dev,struct irdma_dma_mem * val_mem,u8 hmc_fn_id)955 irdma_cqp_query_fpm_val_cmd(struct irdma_sc_dev *dev,
956 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
957 {
958 struct irdma_cqp_request *cqp_request;
959 struct cqp_cmds_info *cqp_info;
960 struct irdma_pci_f *rf = dev_to_rf(dev);
961 enum irdma_status_code status;
962
963 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
964 if (!cqp_request)
965 return IRDMA_ERR_NO_MEMORY;
966
967 cqp_info = &cqp_request->info;
968 cqp_request->param = NULL;
969 cqp_info->in.u.query_fpm_val.cqp = dev->cqp;
970 cqp_info->in.u.query_fpm_val.fpm_val_pa = val_mem->pa;
971 cqp_info->in.u.query_fpm_val.fpm_val_va = val_mem->va;
972 cqp_info->in.u.query_fpm_val.hmc_fn_id = hmc_fn_id;
973 cqp_info->cqp_cmd = IRDMA_OP_QUERY_FPM_VAL;
974 cqp_info->post_sq = 1;
975 cqp_info->in.u.query_fpm_val.scratch = (uintptr_t)cqp_request;
976
977 status = irdma_handle_cqp_op(rf, cqp_request);
978 irdma_put_cqp_request(&rf->cqp, cqp_request);
979
980 return status;
981 }
982
983 /**
984 * irdma_cqp_commit_fpm_val_cmd - commit fpm values in hw
985 * @dev: hardware control device structure
986 * @val_mem: buffer with fpm values
987 * @hmc_fn_id: function id for fpm
988 */
989 enum irdma_status_code
irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev * dev,struct irdma_dma_mem * val_mem,u8 hmc_fn_id)990 irdma_cqp_commit_fpm_val_cmd(struct irdma_sc_dev *dev,
991 struct irdma_dma_mem *val_mem, u8 hmc_fn_id)
992 {
993 struct irdma_cqp_request *cqp_request;
994 struct cqp_cmds_info *cqp_info;
995 struct irdma_pci_f *rf = dev_to_rf(dev);
996 enum irdma_status_code status;
997
998 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
999 if (!cqp_request)
1000 return IRDMA_ERR_NO_MEMORY;
1001
1002 cqp_info = &cqp_request->info;
1003 cqp_request->param = NULL;
1004 cqp_info->in.u.commit_fpm_val.cqp = dev->cqp;
1005 cqp_info->in.u.commit_fpm_val.fpm_val_pa = val_mem->pa;
1006 cqp_info->in.u.commit_fpm_val.fpm_val_va = val_mem->va;
1007 cqp_info->in.u.commit_fpm_val.hmc_fn_id = hmc_fn_id;
1008 cqp_info->cqp_cmd = IRDMA_OP_COMMIT_FPM_VAL;
1009 cqp_info->post_sq = 1;
1010 cqp_info->in.u.commit_fpm_val.scratch = (uintptr_t)cqp_request;
1011
1012 status = irdma_handle_cqp_op(rf, cqp_request);
1013 irdma_put_cqp_request(&rf->cqp, cqp_request);
1014
1015 return status;
1016 }
1017
1018 /**
1019 * irdma_cqp_cq_create_cmd - create a cq for the cqp
1020 * @dev: device pointer
1021 * @cq: pointer to created cq
1022 */
irdma_cqp_cq_create_cmd(struct irdma_sc_dev * dev,struct irdma_sc_cq * cq)1023 enum irdma_status_code irdma_cqp_cq_create_cmd(struct irdma_sc_dev *dev,
1024 struct irdma_sc_cq *cq)
1025 {
1026 struct irdma_pci_f *rf = dev_to_rf(dev);
1027 struct irdma_cqp *iwcqp = &rf->cqp;
1028 struct irdma_cqp_request *cqp_request;
1029 struct cqp_cmds_info *cqp_info;
1030 enum irdma_status_code status;
1031
1032 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1033 if (!cqp_request)
1034 return IRDMA_ERR_NO_MEMORY;
1035
1036 cqp_info = &cqp_request->info;
1037 cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
1038 cqp_info->post_sq = 1;
1039 cqp_info->in.u.cq_create.cq = cq;
1040 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1041
1042 status = irdma_handle_cqp_op(rf, cqp_request);
1043 irdma_put_cqp_request(iwcqp, cqp_request);
1044
1045 return status;
1046 }
1047
1048 /**
1049 * irdma_cqp_qp_create_cmd - create a qp for the cqp
1050 * @dev: device pointer
1051 * @qp: pointer to created qp
1052 */
irdma_cqp_qp_create_cmd(struct irdma_sc_dev * dev,struct irdma_sc_qp * qp)1053 enum irdma_status_code irdma_cqp_qp_create_cmd(struct irdma_sc_dev *dev,
1054 struct irdma_sc_qp *qp)
1055 {
1056 struct irdma_pci_f *rf = dev_to_rf(dev);
1057 struct irdma_cqp *iwcqp = &rf->cqp;
1058 struct irdma_cqp_request *cqp_request;
1059 struct cqp_cmds_info *cqp_info;
1060 struct irdma_create_qp_info *qp_info;
1061 enum irdma_status_code status;
1062
1063 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1064 if (!cqp_request)
1065 return IRDMA_ERR_NO_MEMORY;
1066
1067 cqp_info = &cqp_request->info;
1068 qp_info = &cqp_request->info.in.u.qp_create.info;
1069 memset(qp_info, 0, sizeof(*qp_info));
1070 qp_info->cq_num_valid = true;
1071 qp_info->next_iwarp_state = IRDMA_QP_STATE_RTS;
1072 cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
1073 cqp_info->post_sq = 1;
1074 cqp_info->in.u.qp_create.qp = qp;
1075 cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
1076
1077 status = irdma_handle_cqp_op(rf, cqp_request);
1078 irdma_put_cqp_request(iwcqp, cqp_request);
1079
1080 return status;
1081 }
1082
1083 /**
1084 * irdma_dealloc_push_page - free a push page for qp
1085 * @rf: RDMA PCI function
1086 * @qp: hardware control qp
1087 */
irdma_dealloc_push_page(struct irdma_pci_f * rf,struct irdma_sc_qp * qp)1088 static void irdma_dealloc_push_page(struct irdma_pci_f *rf,
1089 struct irdma_sc_qp *qp)
1090 {
1091 struct irdma_cqp_request *cqp_request;
1092 struct cqp_cmds_info *cqp_info;
1093 enum irdma_status_code status;
1094
1095 if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX)
1096 return;
1097
1098 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
1099 if (!cqp_request)
1100 return;
1101
1102 cqp_info = &cqp_request->info;
1103 cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
1104 cqp_info->post_sq = 1;
1105 cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
1106 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
1107 cqp_info->in.u.manage_push_page.info.free_page = 1;
1108 cqp_info->in.u.manage_push_page.info.push_page_type = 0;
1109 cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp;
1110 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
1111 status = irdma_handle_cqp_op(rf, cqp_request);
1112 if (!status)
1113 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
1114 irdma_put_cqp_request(&rf->cqp, cqp_request);
1115 }
1116
1117 /**
1118 * irdma_free_qp_rsrc - free up memory resources for qp
1119 * @iwqp: qp ptr (user or kernel)
1120 */
irdma_free_qp_rsrc(struct irdma_qp * iwqp)1121 void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
1122 {
1123 struct irdma_device *iwdev = iwqp->iwdev;
1124 struct irdma_pci_f *rf = iwdev->rf;
1125 u32 qp_num = iwqp->ibqp.qp_num;
1126
1127 irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
1128 irdma_dealloc_push_page(rf, &iwqp->sc_qp);
1129 if (iwqp->sc_qp.vsi) {
1130 irdma_qp_rem_qos(&iwqp->sc_qp);
1131 iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi,
1132 iwqp->sc_qp.user_pri);
1133 }
1134
1135 if (qp_num > 2)
1136 irdma_free_rsrc(rf, rf->allocated_qps, qp_num);
1137 dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size,
1138 iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa);
1139 iwqp->q2_ctx_mem.va = NULL;
1140 dma_free_coherent(rf->sc_dev.hw->device, iwqp->kqp.dma_mem.size,
1141 iwqp->kqp.dma_mem.va, iwqp->kqp.dma_mem.pa);
1142 iwqp->kqp.dma_mem.va = NULL;
1143 kfree(iwqp->kqp.sq_wrid_mem);
1144 kfree(iwqp->kqp.rq_wrid_mem);
1145 }
1146
1147 /**
1148 * irdma_cq_wq_destroy - send cq destroy cqp
1149 * @rf: RDMA PCI function
1150 * @cq: hardware control cq
1151 */
irdma_cq_wq_destroy(struct irdma_pci_f * rf,struct irdma_sc_cq * cq)1152 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
1153 {
1154 struct irdma_cqp_request *cqp_request;
1155 struct cqp_cmds_info *cqp_info;
1156
1157 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1158 if (!cqp_request)
1159 return;
1160
1161 cqp_info = &cqp_request->info;
1162 cqp_info->cqp_cmd = IRDMA_OP_CQ_DESTROY;
1163 cqp_info->post_sq = 1;
1164 cqp_info->in.u.cq_destroy.cq = cq;
1165 cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1166
1167 irdma_handle_cqp_op(rf, cqp_request);
1168 irdma_put_cqp_request(&rf->cqp, cqp_request);
1169 }
1170
1171 /**
1172 * irdma_hw_modify_qp_callback - handle state for modifyQPs that don't wait
1173 * @cqp_request: modify QP completion
1174 */
irdma_hw_modify_qp_callback(struct irdma_cqp_request * cqp_request)1175 static void irdma_hw_modify_qp_callback(struct irdma_cqp_request *cqp_request)
1176 {
1177 struct cqp_cmds_info *cqp_info;
1178 struct irdma_qp *iwqp;
1179
1180 cqp_info = &cqp_request->info;
1181 iwqp = cqp_info->in.u.qp_modify.qp->qp_uk.back_qp;
1182 atomic_dec(&iwqp->hw_mod_qp_pend);
1183 wake_up(&iwqp->mod_qp_waitq);
1184 }
1185
1186 /**
1187 * irdma_hw_modify_qp - setup cqp for modify qp
1188 * @iwdev: RDMA device
1189 * @iwqp: qp ptr (user or kernel)
1190 * @info: info for modify qp
1191 * @wait: flag to wait or not for modify qp completion
1192 */
irdma_hw_modify_qp(struct irdma_device * iwdev,struct irdma_qp * iwqp,struct irdma_modify_qp_info * info,bool wait)1193 enum irdma_status_code irdma_hw_modify_qp(struct irdma_device *iwdev,
1194 struct irdma_qp *iwqp,
1195 struct irdma_modify_qp_info *info,
1196 bool wait)
1197 {
1198 enum irdma_status_code status;
1199 struct irdma_pci_f *rf = iwdev->rf;
1200 struct irdma_cqp_request *cqp_request;
1201 struct cqp_cmds_info *cqp_info;
1202 struct irdma_modify_qp_info *m_info;
1203
1204 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
1205 if (!cqp_request)
1206 return IRDMA_ERR_NO_MEMORY;
1207
1208 if (!wait) {
1209 cqp_request->callback_fcn = irdma_hw_modify_qp_callback;
1210 atomic_inc(&iwqp->hw_mod_qp_pend);
1211 }
1212 cqp_info = &cqp_request->info;
1213 m_info = &cqp_info->in.u.qp_modify.info;
1214 memcpy(m_info, info, sizeof(*m_info));
1215 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1216 cqp_info->post_sq = 1;
1217 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1218 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1219 status = irdma_handle_cqp_op(rf, cqp_request);
1220 irdma_put_cqp_request(&rf->cqp, cqp_request);
1221 if (status) {
1222 if (rdma_protocol_roce(&iwdev->ibdev, 1))
1223 return status;
1224
1225 switch (m_info->next_iwarp_state) {
1226 struct irdma_gen_ae_info ae_info;
1227
1228 case IRDMA_QP_STATE_RTS:
1229 case IRDMA_QP_STATE_IDLE:
1230 case IRDMA_QP_STATE_TERMINATE:
1231 case IRDMA_QP_STATE_CLOSING:
1232 if (info->curr_iwarp_state == IRDMA_QP_STATE_IDLE)
1233 irdma_send_reset(iwqp->cm_node);
1234 else
1235 iwqp->sc_qp.term_flags = IRDMA_TERM_DONE;
1236 if (!wait) {
1237 ae_info.ae_code = IRDMA_AE_BAD_CLOSE;
1238 ae_info.ae_src = 0;
1239 irdma_gen_ae(rf, &iwqp->sc_qp, &ae_info, false);
1240 } else {
1241 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp,
1242 wait);
1243 if (!cqp_request)
1244 return IRDMA_ERR_NO_MEMORY;
1245
1246 cqp_info = &cqp_request->info;
1247 m_info = &cqp_info->in.u.qp_modify.info;
1248 memcpy(m_info, info, sizeof(*m_info));
1249 cqp_info->cqp_cmd = IRDMA_OP_QP_MODIFY;
1250 cqp_info->post_sq = 1;
1251 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
1252 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
1253 m_info->next_iwarp_state = IRDMA_QP_STATE_ERROR;
1254 m_info->reset_tcp_conn = true;
1255 irdma_handle_cqp_op(rf, cqp_request);
1256 irdma_put_cqp_request(&rf->cqp, cqp_request);
1257 }
1258 break;
1259 case IRDMA_QP_STATE_ERROR:
1260 default:
1261 break;
1262 }
1263 }
1264
1265 return status;
1266 }
1267
1268 /**
1269 * irdma_cqp_cq_destroy_cmd - destroy the cqp cq
1270 * @dev: device pointer
1271 * @cq: pointer to cq
1272 */
irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev * dev,struct irdma_sc_cq * cq)1273 void irdma_cqp_cq_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_cq *cq)
1274 {
1275 struct irdma_pci_f *rf = dev_to_rf(dev);
1276
1277 irdma_cq_wq_destroy(rf, cq);
1278 }
1279
1280 /**
1281 * irdma_cqp_qp_destroy_cmd - destroy the cqp
1282 * @dev: device pointer
1283 * @qp: pointer to qp
1284 */
irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev * dev,struct irdma_sc_qp * qp)1285 enum irdma_status_code irdma_cqp_qp_destroy_cmd(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1286 {
1287 struct irdma_pci_f *rf = dev_to_rf(dev);
1288 struct irdma_cqp *iwcqp = &rf->cqp;
1289 struct irdma_cqp_request *cqp_request;
1290 struct cqp_cmds_info *cqp_info;
1291 enum irdma_status_code status;
1292
1293 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
1294 if (!cqp_request)
1295 return IRDMA_ERR_NO_MEMORY;
1296
1297 cqp_info = &cqp_request->info;
1298 memset(cqp_info, 0, sizeof(*cqp_info));
1299 cqp_info->cqp_cmd = IRDMA_OP_QP_DESTROY;
1300 cqp_info->post_sq = 1;
1301 cqp_info->in.u.qp_destroy.qp = qp;
1302 cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
1303 cqp_info->in.u.qp_destroy.remove_hash_idx = true;
1304
1305 status = irdma_handle_cqp_op(rf, cqp_request);
1306 irdma_put_cqp_request(&rf->cqp, cqp_request);
1307
1308 return status;
1309 }
1310
1311 /**
1312 * irdma_ieq_mpa_crc_ae - generate AE for crc error
1313 * @dev: hardware control device structure
1314 * @qp: hardware control qp
1315 */
irdma_ieq_mpa_crc_ae(struct irdma_sc_dev * dev,struct irdma_sc_qp * qp)1316 void irdma_ieq_mpa_crc_ae(struct irdma_sc_dev *dev, struct irdma_sc_qp *qp)
1317 {
1318 struct irdma_gen_ae_info info = {};
1319 struct irdma_pci_f *rf = dev_to_rf(dev);
1320
1321 ibdev_dbg(&rf->iwdev->ibdev, "AEQ: Generate MPA CRC AE\n");
1322 info.ae_code = IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR;
1323 info.ae_src = IRDMA_AE_SOURCE_RQ;
1324 irdma_gen_ae(rf, qp, &info, false);
1325 }
1326
1327 /**
1328 * irdma_init_hash_desc - initialize hash for crc calculation
1329 * @desc: cryption type
1330 */
irdma_init_hash_desc(struct shash_desc ** desc)1331 enum irdma_status_code irdma_init_hash_desc(struct shash_desc **desc)
1332 {
1333 struct crypto_shash *tfm;
1334 struct shash_desc *tdesc;
1335
1336 tfm = crypto_alloc_shash("crc32c", 0, 0);
1337 if (IS_ERR(tfm))
1338 return IRDMA_ERR_MPA_CRC;
1339
1340 tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm),
1341 GFP_KERNEL);
1342 if (!tdesc) {
1343 crypto_free_shash(tfm);
1344 return IRDMA_ERR_MPA_CRC;
1345 }
1346
1347 tdesc->tfm = tfm;
1348 *desc = tdesc;
1349
1350 return 0;
1351 }
1352
1353 /**
1354 * irdma_free_hash_desc - free hash desc
1355 * @desc: to be freed
1356 */
irdma_free_hash_desc(struct shash_desc * desc)1357 void irdma_free_hash_desc(struct shash_desc *desc)
1358 {
1359 if (desc) {
1360 crypto_free_shash(desc->tfm);
1361 kfree(desc);
1362 }
1363 }
1364
1365 /**
1366 * irdma_ieq_check_mpacrc - check if mpa crc is OK
1367 * @desc: desc for hash
1368 * @addr: address of buffer for crc
1369 * @len: length of buffer
1370 * @val: value to be compared
1371 */
irdma_ieq_check_mpacrc(struct shash_desc * desc,void * addr,u32 len,u32 val)1372 enum irdma_status_code irdma_ieq_check_mpacrc(struct shash_desc *desc,
1373 void *addr, u32 len, u32 val)
1374 {
1375 u32 crc = 0;
1376 int ret;
1377 enum irdma_status_code ret_code = 0;
1378
1379 crypto_shash_init(desc);
1380 ret = crypto_shash_update(desc, addr, len);
1381 if (!ret)
1382 crypto_shash_final(desc, (u8 *)&crc);
1383 if (crc != val)
1384 ret_code = IRDMA_ERR_MPA_CRC;
1385
1386 return ret_code;
1387 }
1388
1389 /**
1390 * irdma_ieq_get_qp - get qp based on quad in puda buffer
1391 * @dev: hardware control device structure
1392 * @buf: receive puda buffer on exception q
1393 */
irdma_ieq_get_qp(struct irdma_sc_dev * dev,struct irdma_puda_buf * buf)1394 struct irdma_sc_qp *irdma_ieq_get_qp(struct irdma_sc_dev *dev,
1395 struct irdma_puda_buf *buf)
1396 {
1397 struct irdma_qp *iwqp;
1398 struct irdma_cm_node *cm_node;
1399 struct irdma_device *iwdev = buf->vsi->back_vsi;
1400 u32 loc_addr[4] = {};
1401 u32 rem_addr[4] = {};
1402 u16 loc_port, rem_port;
1403 struct ipv6hdr *ip6h;
1404 struct iphdr *iph = (struct iphdr *)buf->iph;
1405 struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1406
1407 if (iph->version == 4) {
1408 loc_addr[0] = ntohl(iph->daddr);
1409 rem_addr[0] = ntohl(iph->saddr);
1410 } else {
1411 ip6h = (struct ipv6hdr *)buf->iph;
1412 irdma_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32);
1413 irdma_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32);
1414 }
1415 loc_port = ntohs(tcph->dest);
1416 rem_port = ntohs(tcph->source);
1417 cm_node = irdma_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port,
1418 loc_addr, buf->vlan_valid ? buf->vlan_id : 0xFFFF);
1419 if (!cm_node)
1420 return NULL;
1421
1422 iwqp = cm_node->iwqp;
1423 irdma_rem_ref_cm_node(cm_node);
1424
1425 return &iwqp->sc_qp;
1426 }
1427
1428 /**
1429 * irdma_send_ieq_ack - ACKs for duplicate or OOO partials FPDUs
1430 * @qp: qp ptr
1431 */
irdma_send_ieq_ack(struct irdma_sc_qp * qp)1432 void irdma_send_ieq_ack(struct irdma_sc_qp *qp)
1433 {
1434 struct irdma_cm_node *cm_node = ((struct irdma_qp *)qp->qp_uk.back_qp)->cm_node;
1435 struct irdma_puda_buf *buf = qp->pfpdu.lastrcv_buf;
1436 struct tcphdr *tcph = (struct tcphdr *)buf->tcph;
1437
1438 cm_node->tcp_cntxt.rcv_nxt = qp->pfpdu.nextseqnum;
1439 cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
1440
1441 irdma_send_ack(cm_node);
1442 }
1443
1444 /**
1445 * irdma_puda_ieq_get_ah_info - get AH info from IEQ buffer
1446 * @qp: qp pointer
1447 * @ah_info: AH info pointer
1448 */
irdma_puda_ieq_get_ah_info(struct irdma_sc_qp * qp,struct irdma_ah_info * ah_info)1449 void irdma_puda_ieq_get_ah_info(struct irdma_sc_qp *qp,
1450 struct irdma_ah_info *ah_info)
1451 {
1452 struct irdma_puda_buf *buf = qp->pfpdu.ah_buf;
1453 struct iphdr *iph;
1454 struct ipv6hdr *ip6h;
1455
1456 memset(ah_info, 0, sizeof(*ah_info));
1457 ah_info->do_lpbk = true;
1458 ah_info->vlan_tag = buf->vlan_id;
1459 ah_info->insert_vlan_tag = buf->vlan_valid;
1460 ah_info->ipv4_valid = buf->ipv4;
1461 ah_info->vsi = qp->vsi;
1462
1463 if (buf->smac_valid)
1464 ether_addr_copy(ah_info->mac_addr, buf->smac);
1465
1466 if (buf->ipv4) {
1467 ah_info->ipv4_valid = true;
1468 iph = (struct iphdr *)buf->iph;
1469 ah_info->hop_ttl = iph->ttl;
1470 ah_info->tc_tos = iph->tos;
1471 ah_info->dest_ip_addr[0] = ntohl(iph->daddr);
1472 ah_info->src_ip_addr[0] = ntohl(iph->saddr);
1473 } else {
1474 ip6h = (struct ipv6hdr *)buf->iph;
1475 ah_info->hop_ttl = ip6h->hop_limit;
1476 ah_info->tc_tos = ip6h->priority;
1477 irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
1478 ip6h->daddr.in6_u.u6_addr32);
1479 irdma_copy_ip_ntohl(ah_info->src_ip_addr,
1480 ip6h->saddr.in6_u.u6_addr32);
1481 }
1482
1483 ah_info->dst_arpindex = irdma_arp_table(dev_to_rf(qp->dev),
1484 ah_info->dest_ip_addr,
1485 ah_info->ipv4_valid,
1486 NULL, IRDMA_ARP_RESOLVE);
1487 }
1488
1489 /**
1490 * irdma_gen1_ieq_update_tcpip_info - update tcpip in the buffer
1491 * @buf: puda to update
1492 * @len: length of buffer
1493 * @seqnum: seq number for tcp
1494 */
irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf * buf,u16 len,u32 seqnum)1495 static void irdma_gen1_ieq_update_tcpip_info(struct irdma_puda_buf *buf,
1496 u16 len, u32 seqnum)
1497 {
1498 struct tcphdr *tcph;
1499 struct iphdr *iph;
1500 u16 iphlen;
1501 u16 pktsize;
1502 u8 *addr = buf->mem.va;
1503
1504 iphlen = (buf->ipv4) ? 20 : 40;
1505 iph = (struct iphdr *)(addr + buf->maclen);
1506 tcph = (struct tcphdr *)(addr + buf->maclen + iphlen);
1507 pktsize = len + buf->tcphlen + iphlen;
1508 iph->tot_len = htons(pktsize);
1509 tcph->seq = htonl(seqnum);
1510 }
1511
1512 /**
1513 * irdma_ieq_update_tcpip_info - update tcpip in the buffer
1514 * @buf: puda to update
1515 * @len: length of buffer
1516 * @seqnum: seq number for tcp
1517 */
irdma_ieq_update_tcpip_info(struct irdma_puda_buf * buf,u16 len,u32 seqnum)1518 void irdma_ieq_update_tcpip_info(struct irdma_puda_buf *buf, u16 len,
1519 u32 seqnum)
1520 {
1521 struct tcphdr *tcph;
1522 u8 *addr;
1523
1524 if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1525 return irdma_gen1_ieq_update_tcpip_info(buf, len, seqnum);
1526
1527 addr = buf->mem.va;
1528 tcph = (struct tcphdr *)addr;
1529 tcph->seq = htonl(seqnum);
1530 }
1531
1532 /**
1533 * irdma_gen1_puda_get_tcpip_info - get tcpip info from puda
1534 * buffer
1535 * @info: to get information
1536 * @buf: puda buffer
1537 */
1538 static enum irdma_status_code
irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info * info,struct irdma_puda_buf * buf)1539 irdma_gen1_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1540 struct irdma_puda_buf *buf)
1541 {
1542 struct iphdr *iph;
1543 struct ipv6hdr *ip6h;
1544 struct tcphdr *tcph;
1545 u16 iphlen;
1546 u16 pkt_len;
1547 u8 *mem = buf->mem.va;
1548 struct ethhdr *ethh = buf->mem.va;
1549
1550 if (ethh->h_proto == htons(0x8100)) {
1551 info->vlan_valid = true;
1552 buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) &
1553 VLAN_VID_MASK;
1554 }
1555
1556 buf->maclen = (info->vlan_valid) ? 18 : 14;
1557 iphlen = (info->l3proto) ? 40 : 20;
1558 buf->ipv4 = (info->l3proto) ? false : true;
1559 buf->iph = mem + buf->maclen;
1560 iph = (struct iphdr *)buf->iph;
1561 buf->tcph = buf->iph + iphlen;
1562 tcph = (struct tcphdr *)buf->tcph;
1563
1564 if (buf->ipv4) {
1565 pkt_len = ntohs(iph->tot_len);
1566 } else {
1567 ip6h = (struct ipv6hdr *)buf->iph;
1568 pkt_len = ntohs(ip6h->payload_len) + iphlen;
1569 }
1570
1571 buf->totallen = pkt_len + buf->maclen;
1572
1573 if (info->payload_len < buf->totallen) {
1574 ibdev_dbg(to_ibdev(buf->vsi->dev),
1575 "ERR: payload_len = 0x%x totallen expected0x%x\n",
1576 info->payload_len, buf->totallen);
1577 return IRDMA_ERR_INVALID_SIZE;
1578 }
1579
1580 buf->tcphlen = tcph->doff << 2;
1581 buf->datalen = pkt_len - iphlen - buf->tcphlen;
1582 buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1583 buf->hdrlen = buf->maclen + iphlen + buf->tcphlen;
1584 buf->seqnum = ntohl(tcph->seq);
1585
1586 return 0;
1587 }
1588
1589 /**
1590 * irdma_puda_get_tcpip_info - get tcpip info from puda buffer
1591 * @info: to get information
1592 * @buf: puda buffer
1593 */
1594 enum irdma_status_code
irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info * info,struct irdma_puda_buf * buf)1595 irdma_puda_get_tcpip_info(struct irdma_puda_cmpl_info *info,
1596 struct irdma_puda_buf *buf)
1597 {
1598 struct tcphdr *tcph;
1599 u32 pkt_len;
1600 u8 *mem;
1601
1602 if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1603 return irdma_gen1_puda_get_tcpip_info(info, buf);
1604
1605 mem = buf->mem.va;
1606 buf->vlan_valid = info->vlan_valid;
1607 if (info->vlan_valid)
1608 buf->vlan_id = info->vlan;
1609
1610 buf->ipv4 = info->ipv4;
1611 if (buf->ipv4)
1612 buf->iph = mem + IRDMA_IPV4_PAD;
1613 else
1614 buf->iph = mem;
1615
1616 buf->tcph = mem + IRDMA_TCP_OFFSET;
1617 tcph = (struct tcphdr *)buf->tcph;
1618 pkt_len = info->payload_len;
1619 buf->totallen = pkt_len;
1620 buf->tcphlen = tcph->doff << 2;
1621 buf->datalen = pkt_len - IRDMA_TCP_OFFSET - buf->tcphlen;
1622 buf->data = buf->datalen ? buf->tcph + buf->tcphlen : NULL;
1623 buf->hdrlen = IRDMA_TCP_OFFSET + buf->tcphlen;
1624 buf->seqnum = ntohl(tcph->seq);
1625
1626 if (info->smac_valid) {
1627 ether_addr_copy(buf->smac, info->smac);
1628 buf->smac_valid = true;
1629 }
1630
1631 return 0;
1632 }
1633
1634 /**
1635 * irdma_hw_stats_timeout - Stats timer-handler which updates all HW stats
1636 * @t: timer_list pointer
1637 */
irdma_hw_stats_timeout(struct timer_list * t)1638 static void irdma_hw_stats_timeout(struct timer_list *t)
1639 {
1640 struct irdma_vsi_pestat *pf_devstat =
1641 from_timer(pf_devstat, t, stats_timer);
1642 struct irdma_sc_vsi *sc_vsi = pf_devstat->vsi;
1643
1644 if (sc_vsi->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
1645 irdma_cqp_gather_stats_gen1(sc_vsi->dev, sc_vsi->pestat);
1646 else
1647 irdma_cqp_gather_stats_cmd(sc_vsi->dev, sc_vsi->pestat, false);
1648
1649 mod_timer(&pf_devstat->stats_timer,
1650 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1651 }
1652
1653 /**
1654 * irdma_hw_stats_start_timer - Start periodic stats timer
1655 * @vsi: vsi structure pointer
1656 */
irdma_hw_stats_start_timer(struct irdma_sc_vsi * vsi)1657 void irdma_hw_stats_start_timer(struct irdma_sc_vsi *vsi)
1658 {
1659 struct irdma_vsi_pestat *devstat = vsi->pestat;
1660
1661 timer_setup(&devstat->stats_timer, irdma_hw_stats_timeout, 0);
1662 mod_timer(&devstat->stats_timer,
1663 jiffies + msecs_to_jiffies(STATS_TIMER_DELAY));
1664 }
1665
1666 /**
1667 * irdma_hw_stats_stop_timer - Delete periodic stats timer
1668 * @vsi: pointer to vsi structure
1669 */
irdma_hw_stats_stop_timer(struct irdma_sc_vsi * vsi)1670 void irdma_hw_stats_stop_timer(struct irdma_sc_vsi *vsi)
1671 {
1672 struct irdma_vsi_pestat *devstat = vsi->pestat;
1673
1674 del_timer_sync(&devstat->stats_timer);
1675 }
1676
1677 /**
1678 * irdma_process_stats - Checking for wrap and update stats
1679 * @pestat: stats structure pointer
1680 */
irdma_process_stats(struct irdma_vsi_pestat * pestat)1681 static inline void irdma_process_stats(struct irdma_vsi_pestat *pestat)
1682 {
1683 sc_vsi_update_stats(pestat->vsi);
1684 }
1685
1686 /**
1687 * irdma_cqp_gather_stats_gen1 - Gather stats
1688 * @dev: pointer to device structure
1689 * @pestat: statistics structure
1690 */
irdma_cqp_gather_stats_gen1(struct irdma_sc_dev * dev,struct irdma_vsi_pestat * pestat)1691 void irdma_cqp_gather_stats_gen1(struct irdma_sc_dev *dev,
1692 struct irdma_vsi_pestat *pestat)
1693 {
1694 struct irdma_gather_stats *gather_stats =
1695 pestat->gather_info.gather_stats_va;
1696 u32 stats_inst_offset_32;
1697 u32 stats_inst_offset_64;
1698
1699 stats_inst_offset_32 = (pestat->gather_info.use_stats_inst) ?
1700 pestat->gather_info.stats_inst_index :
1701 pestat->hw->hmc.hmc_fn_id;
1702 stats_inst_offset_32 *= 4;
1703 stats_inst_offset_64 = stats_inst_offset_32 * 2;
1704
1705 gather_stats->rxvlanerr =
1706 rd32(dev->hw,
1707 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_RXVLANERR]
1708 + stats_inst_offset_32);
1709 gather_stats->ip4rxdiscard =
1710 rd32(dev->hw,
1711 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXDISCARD]
1712 + stats_inst_offset_32);
1713 gather_stats->ip4rxtrunc =
1714 rd32(dev->hw,
1715 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4RXTRUNC]
1716 + stats_inst_offset_32);
1717 gather_stats->ip4txnoroute =
1718 rd32(dev->hw,
1719 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE]
1720 + stats_inst_offset_32);
1721 gather_stats->ip6rxdiscard =
1722 rd32(dev->hw,
1723 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXDISCARD]
1724 + stats_inst_offset_32);
1725 gather_stats->ip6rxtrunc =
1726 rd32(dev->hw,
1727 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6RXTRUNC]
1728 + stats_inst_offset_32);
1729 gather_stats->ip6txnoroute =
1730 rd32(dev->hw,
1731 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE]
1732 + stats_inst_offset_32);
1733 gather_stats->tcprtxseg =
1734 rd32(dev->hw,
1735 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRTXSEG]
1736 + stats_inst_offset_32);
1737 gather_stats->tcprxopterr =
1738 rd32(dev->hw,
1739 dev->hw_stats_regs_32[IRDMA_HW_STAT_INDEX_TCPRXOPTERR]
1740 + stats_inst_offset_32);
1741
1742 gather_stats->ip4rxocts =
1743 rd64(dev->hw,
1744 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXOCTS]
1745 + stats_inst_offset_64);
1746 gather_stats->ip4rxpkts =
1747 rd64(dev->hw,
1748 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXPKTS]
1749 + stats_inst_offset_64);
1750 gather_stats->ip4txfrag =
1751 rd64(dev->hw,
1752 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXFRAGS]
1753 + stats_inst_offset_64);
1754 gather_stats->ip4rxmcpkts =
1755 rd64(dev->hw,
1756 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS]
1757 + stats_inst_offset_64);
1758 gather_stats->ip4txocts =
1759 rd64(dev->hw,
1760 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXOCTS]
1761 + stats_inst_offset_64);
1762 gather_stats->ip4txpkts =
1763 rd64(dev->hw,
1764 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXPKTS]
1765 + stats_inst_offset_64);
1766 gather_stats->ip4txfrag =
1767 rd64(dev->hw,
1768 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXFRAGS]
1769 + stats_inst_offset_64);
1770 gather_stats->ip4txmcpkts =
1771 rd64(dev->hw,
1772 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS]
1773 + stats_inst_offset_64);
1774 gather_stats->ip6rxocts =
1775 rd64(dev->hw,
1776 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXOCTS]
1777 + stats_inst_offset_64);
1778 gather_stats->ip6rxpkts =
1779 rd64(dev->hw,
1780 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXPKTS]
1781 + stats_inst_offset_64);
1782 gather_stats->ip6txfrags =
1783 rd64(dev->hw,
1784 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXFRAGS]
1785 + stats_inst_offset_64);
1786 gather_stats->ip6rxmcpkts =
1787 rd64(dev->hw,
1788 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS]
1789 + stats_inst_offset_64);
1790 gather_stats->ip6txocts =
1791 rd64(dev->hw,
1792 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXOCTS]
1793 + stats_inst_offset_64);
1794 gather_stats->ip6txpkts =
1795 rd64(dev->hw,
1796 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXPKTS]
1797 + stats_inst_offset_64);
1798 gather_stats->ip6txfrags =
1799 rd64(dev->hw,
1800 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXFRAGS]
1801 + stats_inst_offset_64);
1802 gather_stats->ip6txmcpkts =
1803 rd64(dev->hw,
1804 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS]
1805 + stats_inst_offset_64);
1806 gather_stats->tcprxsegs =
1807 rd64(dev->hw,
1808 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPRXSEGS]
1809 + stats_inst_offset_64);
1810 gather_stats->tcptxsegs =
1811 rd64(dev->hw,
1812 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_TCPTXSEG]
1813 + stats_inst_offset_64);
1814 gather_stats->rdmarxrds =
1815 rd64(dev->hw,
1816 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXRDS]
1817 + stats_inst_offset_64);
1818 gather_stats->rdmarxsnds =
1819 rd64(dev->hw,
1820 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXSNDS]
1821 + stats_inst_offset_64);
1822 gather_stats->rdmarxwrs =
1823 rd64(dev->hw,
1824 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMARXWRS]
1825 + stats_inst_offset_64);
1826 gather_stats->rdmatxrds =
1827 rd64(dev->hw,
1828 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXRDS]
1829 + stats_inst_offset_64);
1830 gather_stats->rdmatxsnds =
1831 rd64(dev->hw,
1832 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXSNDS]
1833 + stats_inst_offset_64);
1834 gather_stats->rdmatxwrs =
1835 rd64(dev->hw,
1836 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMATXWRS]
1837 + stats_inst_offset_64);
1838 gather_stats->rdmavbn =
1839 rd64(dev->hw,
1840 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVBND]
1841 + stats_inst_offset_64);
1842 gather_stats->rdmavinv =
1843 rd64(dev->hw,
1844 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_RDMAVINV]
1845 + stats_inst_offset_64);
1846 gather_stats->udprxpkts =
1847 rd64(dev->hw,
1848 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPRXPKTS]
1849 + stats_inst_offset_64);
1850 gather_stats->udptxpkts =
1851 rd64(dev->hw,
1852 dev->hw_stats_regs_64[IRDMA_HW_STAT_INDEX_UDPTXPKTS]
1853 + stats_inst_offset_64);
1854
1855 irdma_process_stats(pestat);
1856 }
1857
1858 /**
1859 * irdma_process_cqp_stats - Checking for wrap and update stats
1860 * @cqp_request: cqp_request structure pointer
1861 */
irdma_process_cqp_stats(struct irdma_cqp_request * cqp_request)1862 static void irdma_process_cqp_stats(struct irdma_cqp_request *cqp_request)
1863 {
1864 struct irdma_vsi_pestat *pestat = cqp_request->param;
1865
1866 irdma_process_stats(pestat);
1867 }
1868
1869 /**
1870 * irdma_cqp_gather_stats_cmd - Gather stats
1871 * @dev: pointer to device structure
1872 * @pestat: pointer to stats info
1873 * @wait: flag to wait or not wait for stats
1874 */
1875 enum irdma_status_code
irdma_cqp_gather_stats_cmd(struct irdma_sc_dev * dev,struct irdma_vsi_pestat * pestat,bool wait)1876 irdma_cqp_gather_stats_cmd(struct irdma_sc_dev *dev,
1877 struct irdma_vsi_pestat *pestat, bool wait)
1878
1879 {
1880 struct irdma_pci_f *rf = dev_to_rf(dev);
1881 struct irdma_cqp *iwcqp = &rf->cqp;
1882 struct irdma_cqp_request *cqp_request;
1883 struct cqp_cmds_info *cqp_info;
1884 enum irdma_status_code status;
1885
1886 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1887 if (!cqp_request)
1888 return IRDMA_ERR_NO_MEMORY;
1889
1890 cqp_info = &cqp_request->info;
1891 memset(cqp_info, 0, sizeof(*cqp_info));
1892 cqp_info->cqp_cmd = IRDMA_OP_STATS_GATHER;
1893 cqp_info->post_sq = 1;
1894 cqp_info->in.u.stats_gather.info = pestat->gather_info;
1895 cqp_info->in.u.stats_gather.scratch = (uintptr_t)cqp_request;
1896 cqp_info->in.u.stats_gather.cqp = &rf->cqp.sc_cqp;
1897 cqp_request->param = pestat;
1898 if (!wait)
1899 cqp_request->callback_fcn = irdma_process_cqp_stats;
1900 status = irdma_handle_cqp_op(rf, cqp_request);
1901 if (wait)
1902 irdma_process_stats(pestat);
1903 irdma_put_cqp_request(&rf->cqp, cqp_request);
1904
1905 return status;
1906 }
1907
1908 /**
1909 * irdma_cqp_stats_inst_cmd - Allocate/free stats instance
1910 * @vsi: pointer to vsi structure
1911 * @cmd: command to allocate or free
1912 * @stats_info: pointer to allocate stats info
1913 */
1914 enum irdma_status_code
irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi * vsi,u8 cmd,struct irdma_stats_inst_info * stats_info)1915 irdma_cqp_stats_inst_cmd(struct irdma_sc_vsi *vsi, u8 cmd,
1916 struct irdma_stats_inst_info *stats_info)
1917 {
1918 struct irdma_pci_f *rf = dev_to_rf(vsi->dev);
1919 struct irdma_cqp *iwcqp = &rf->cqp;
1920 struct irdma_cqp_request *cqp_request;
1921 struct cqp_cmds_info *cqp_info;
1922 enum irdma_status_code status;
1923 bool wait = false;
1924
1925 if (cmd == IRDMA_OP_STATS_ALLOCATE)
1926 wait = true;
1927 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
1928 if (!cqp_request)
1929 return IRDMA_ERR_NO_MEMORY;
1930
1931 cqp_info = &cqp_request->info;
1932 memset(cqp_info, 0, sizeof(*cqp_info));
1933 cqp_info->cqp_cmd = cmd;
1934 cqp_info->post_sq = 1;
1935 cqp_info->in.u.stats_manage.info = *stats_info;
1936 cqp_info->in.u.stats_manage.scratch = (uintptr_t)cqp_request;
1937 cqp_info->in.u.stats_manage.cqp = &rf->cqp.sc_cqp;
1938 status = irdma_handle_cqp_op(rf, cqp_request);
1939 if (wait)
1940 stats_info->stats_idx = cqp_request->compl_info.op_ret_val;
1941 irdma_put_cqp_request(iwcqp, cqp_request);
1942
1943 return status;
1944 }
1945
1946 /**
1947 * irdma_cqp_ceq_cmd - Create/Destroy CEQ's after CEQ 0
1948 * @dev: pointer to device info
1949 * @sc_ceq: pointer to ceq structure
1950 * @op: Create or Destroy
1951 */
irdma_cqp_ceq_cmd(struct irdma_sc_dev * dev,struct irdma_sc_ceq * sc_ceq,u8 op)1952 enum irdma_status_code irdma_cqp_ceq_cmd(struct irdma_sc_dev *dev,
1953 struct irdma_sc_ceq *sc_ceq, u8 op)
1954 {
1955 struct irdma_cqp_request *cqp_request;
1956 struct cqp_cmds_info *cqp_info;
1957 struct irdma_pci_f *rf = dev_to_rf(dev);
1958 enum irdma_status_code status;
1959
1960 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1961 if (!cqp_request)
1962 return IRDMA_ERR_NO_MEMORY;
1963
1964 cqp_info = &cqp_request->info;
1965 cqp_info->post_sq = 1;
1966 cqp_info->cqp_cmd = op;
1967 cqp_info->in.u.ceq_create.ceq = sc_ceq;
1968 cqp_info->in.u.ceq_create.scratch = (uintptr_t)cqp_request;
1969
1970 status = irdma_handle_cqp_op(rf, cqp_request);
1971 irdma_put_cqp_request(&rf->cqp, cqp_request);
1972
1973 return status;
1974 }
1975
1976 /**
1977 * irdma_cqp_aeq_cmd - Create/Destroy AEQ
1978 * @dev: pointer to device info
1979 * @sc_aeq: pointer to aeq structure
1980 * @op: Create or Destroy
1981 */
irdma_cqp_aeq_cmd(struct irdma_sc_dev * dev,struct irdma_sc_aeq * sc_aeq,u8 op)1982 enum irdma_status_code irdma_cqp_aeq_cmd(struct irdma_sc_dev *dev,
1983 struct irdma_sc_aeq *sc_aeq, u8 op)
1984 {
1985 struct irdma_cqp_request *cqp_request;
1986 struct cqp_cmds_info *cqp_info;
1987 struct irdma_pci_f *rf = dev_to_rf(dev);
1988 enum irdma_status_code status;
1989
1990 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1991 if (!cqp_request)
1992 return IRDMA_ERR_NO_MEMORY;
1993
1994 cqp_info = &cqp_request->info;
1995 cqp_info->post_sq = 1;
1996 cqp_info->cqp_cmd = op;
1997 cqp_info->in.u.aeq_create.aeq = sc_aeq;
1998 cqp_info->in.u.aeq_create.scratch = (uintptr_t)cqp_request;
1999
2000 status = irdma_handle_cqp_op(rf, cqp_request);
2001 irdma_put_cqp_request(&rf->cqp, cqp_request);
2002
2003 return status;
2004 }
2005
2006 /**
2007 * irdma_cqp_ws_node_cmd - Add/modify/delete ws node
2008 * @dev: pointer to device structure
2009 * @cmd: Add, modify or delete
2010 * @node_info: pointer to ws node info
2011 */
2012 enum irdma_status_code
irdma_cqp_ws_node_cmd(struct irdma_sc_dev * dev,u8 cmd,struct irdma_ws_node_info * node_info)2013 irdma_cqp_ws_node_cmd(struct irdma_sc_dev *dev, u8 cmd,
2014 struct irdma_ws_node_info *node_info)
2015 {
2016 struct irdma_pci_f *rf = dev_to_rf(dev);
2017 struct irdma_cqp *iwcqp = &rf->cqp;
2018 struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
2019 struct irdma_cqp_request *cqp_request;
2020 struct cqp_cmds_info *cqp_info;
2021 enum irdma_status_code status;
2022 bool poll;
2023
2024 if (!rf->sc_dev.ceq_valid)
2025 poll = true;
2026 else
2027 poll = false;
2028
2029 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, !poll);
2030 if (!cqp_request)
2031 return IRDMA_ERR_NO_MEMORY;
2032
2033 cqp_info = &cqp_request->info;
2034 memset(cqp_info, 0, sizeof(*cqp_info));
2035 cqp_info->cqp_cmd = cmd;
2036 cqp_info->post_sq = 1;
2037 cqp_info->in.u.ws_node.info = *node_info;
2038 cqp_info->in.u.ws_node.cqp = cqp;
2039 cqp_info->in.u.ws_node.scratch = (uintptr_t)cqp_request;
2040 status = irdma_handle_cqp_op(rf, cqp_request);
2041 if (status)
2042 goto exit;
2043
2044 if (poll) {
2045 struct irdma_ccq_cqe_info compl_info;
2046
2047 status = irdma_sc_poll_for_cqp_op_done(cqp, IRDMA_CQP_OP_WORK_SCHED_NODE,
2048 &compl_info);
2049 node_info->qs_handle = compl_info.op_ret_val;
2050 ibdev_dbg(&rf->iwdev->ibdev, "DCB: opcode=%d, compl_info.retval=%d\n",
2051 compl_info.op_code, compl_info.op_ret_val);
2052 } else {
2053 node_info->qs_handle = cqp_request->compl_info.op_ret_val;
2054 }
2055
2056 exit:
2057 irdma_put_cqp_request(&rf->cqp, cqp_request);
2058
2059 return status;
2060 }
2061
2062 /**
2063 * irdma_cqp_up_map_cmd - Set the up-up mapping
2064 * @dev: pointer to device structure
2065 * @cmd: map command
2066 * @map_info: pointer to up map info
2067 */
irdma_cqp_up_map_cmd(struct irdma_sc_dev * dev,u8 cmd,struct irdma_up_info * map_info)2068 enum irdma_status_code irdma_cqp_up_map_cmd(struct irdma_sc_dev *dev, u8 cmd,
2069 struct irdma_up_info *map_info)
2070 {
2071 struct irdma_pci_f *rf = dev_to_rf(dev);
2072 struct irdma_cqp *iwcqp = &rf->cqp;
2073 struct irdma_sc_cqp *cqp = &iwcqp->sc_cqp;
2074 struct irdma_cqp_request *cqp_request;
2075 struct cqp_cmds_info *cqp_info;
2076 enum irdma_status_code status;
2077
2078 cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, false);
2079 if (!cqp_request)
2080 return IRDMA_ERR_NO_MEMORY;
2081
2082 cqp_info = &cqp_request->info;
2083 memset(cqp_info, 0, sizeof(*cqp_info));
2084 cqp_info->cqp_cmd = cmd;
2085 cqp_info->post_sq = 1;
2086 cqp_info->in.u.up_map.info = *map_info;
2087 cqp_info->in.u.up_map.cqp = cqp;
2088 cqp_info->in.u.up_map.scratch = (uintptr_t)cqp_request;
2089
2090 status = irdma_handle_cqp_op(rf, cqp_request);
2091 irdma_put_cqp_request(&rf->cqp, cqp_request);
2092
2093 return status;
2094 }
2095
2096 /**
2097 * irdma_ah_cqp_op - perform an AH cqp operation
2098 * @rf: RDMA PCI function
2099 * @sc_ah: address handle
2100 * @cmd: AH operation
2101 * @wait: wait if true
2102 * @callback_fcn: Callback function on CQP op completion
2103 * @cb_param: parameter for callback function
2104 *
2105 * returns errno
2106 */
irdma_ah_cqp_op(struct irdma_pci_f * rf,struct irdma_sc_ah * sc_ah,u8 cmd,bool wait,void (* callback_fcn)(struct irdma_cqp_request *),void * cb_param)2107 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
2108 bool wait,
2109 void (*callback_fcn)(struct irdma_cqp_request *),
2110 void *cb_param)
2111 {
2112 struct irdma_cqp_request *cqp_request;
2113 struct cqp_cmds_info *cqp_info;
2114 enum irdma_status_code status;
2115
2116 if (cmd != IRDMA_OP_AH_CREATE && cmd != IRDMA_OP_AH_DESTROY)
2117 return -EINVAL;
2118
2119 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
2120 if (!cqp_request)
2121 return -ENOMEM;
2122
2123 cqp_info = &cqp_request->info;
2124 cqp_info->cqp_cmd = cmd;
2125 cqp_info->post_sq = 1;
2126 if (cmd == IRDMA_OP_AH_CREATE) {
2127 cqp_info->in.u.ah_create.info = sc_ah->ah_info;
2128 cqp_info->in.u.ah_create.scratch = (uintptr_t)cqp_request;
2129 cqp_info->in.u.ah_create.cqp = &rf->cqp.sc_cqp;
2130 } else if (cmd == IRDMA_OP_AH_DESTROY) {
2131 cqp_info->in.u.ah_destroy.info = sc_ah->ah_info;
2132 cqp_info->in.u.ah_destroy.scratch = (uintptr_t)cqp_request;
2133 cqp_info->in.u.ah_destroy.cqp = &rf->cqp.sc_cqp;
2134 }
2135
2136 if (!wait) {
2137 cqp_request->callback_fcn = callback_fcn;
2138 cqp_request->param = cb_param;
2139 }
2140 status = irdma_handle_cqp_op(rf, cqp_request);
2141 irdma_put_cqp_request(&rf->cqp, cqp_request);
2142
2143 if (status)
2144 return -ENOMEM;
2145
2146 if (wait)
2147 sc_ah->ah_info.ah_valid = (cmd == IRDMA_OP_AH_CREATE);
2148
2149 return 0;
2150 }
2151
2152 /**
2153 * irdma_ieq_ah_cb - callback after creation of AH for IEQ
2154 * @cqp_request: pointer to cqp_request of create AH
2155 */
irdma_ieq_ah_cb(struct irdma_cqp_request * cqp_request)2156 static void irdma_ieq_ah_cb(struct irdma_cqp_request *cqp_request)
2157 {
2158 struct irdma_sc_qp *qp = cqp_request->param;
2159 struct irdma_sc_ah *sc_ah = qp->pfpdu.ah;
2160 unsigned long flags;
2161
2162 spin_lock_irqsave(&qp->pfpdu.lock, flags);
2163 if (!cqp_request->compl_info.op_ret_val) {
2164 sc_ah->ah_info.ah_valid = true;
2165 irdma_ieq_process_fpdus(qp, qp->vsi->ieq);
2166 } else {
2167 sc_ah->ah_info.ah_valid = false;
2168 irdma_ieq_cleanup_qp(qp->vsi->ieq, qp);
2169 }
2170 spin_unlock_irqrestore(&qp->pfpdu.lock, flags);
2171 }
2172
2173 /**
2174 * irdma_ilq_ah_cb - callback after creation of AH for ILQ
2175 * @cqp_request: pointer to cqp_request of create AH
2176 */
irdma_ilq_ah_cb(struct irdma_cqp_request * cqp_request)2177 static void irdma_ilq_ah_cb(struct irdma_cqp_request *cqp_request)
2178 {
2179 struct irdma_cm_node *cm_node = cqp_request->param;
2180 struct irdma_sc_ah *sc_ah = cm_node->ah;
2181
2182 sc_ah->ah_info.ah_valid = !cqp_request->compl_info.op_ret_val;
2183 irdma_add_conn_est_qh(cm_node);
2184 }
2185
2186 /**
2187 * irdma_puda_create_ah - create AH for ILQ/IEQ qp's
2188 * @dev: device pointer
2189 * @ah_info: Address handle info
2190 * @wait: When true will wait for operation to complete
2191 * @type: ILQ/IEQ
2192 * @cb_param: Callback param when not waiting
2193 * @ah_ret: Returned pointer to address handle if created
2194 *
2195 */
irdma_puda_create_ah(struct irdma_sc_dev * dev,struct irdma_ah_info * ah_info,bool wait,enum puda_rsrc_type type,void * cb_param,struct irdma_sc_ah ** ah_ret)2196 enum irdma_status_code irdma_puda_create_ah(struct irdma_sc_dev *dev,
2197 struct irdma_ah_info *ah_info,
2198 bool wait, enum puda_rsrc_type type,
2199 void *cb_param,
2200 struct irdma_sc_ah **ah_ret)
2201 {
2202 struct irdma_sc_ah *ah;
2203 struct irdma_pci_f *rf = dev_to_rf(dev);
2204 int err;
2205
2206 ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
2207 *ah_ret = ah;
2208 if (!ah)
2209 return IRDMA_ERR_NO_MEMORY;
2210
2211 err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah,
2212 &ah_info->ah_idx, &rf->next_ah);
2213 if (err)
2214 goto err_free;
2215
2216 ah->dev = dev;
2217 ah->ah_info = *ah_info;
2218
2219 if (type == IRDMA_PUDA_RSRC_TYPE_ILQ)
2220 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2221 irdma_ilq_ah_cb, cb_param);
2222 else
2223 err = irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_CREATE, wait,
2224 irdma_ieq_ah_cb, cb_param);
2225
2226 if (err)
2227 goto error;
2228 return 0;
2229
2230 error:
2231 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2232 err_free:
2233 kfree(ah);
2234 *ah_ret = NULL;
2235 return IRDMA_ERR_NO_MEMORY;
2236 }
2237
2238 /**
2239 * irdma_puda_free_ah - free a puda address handle
2240 * @dev: device pointer
2241 * @ah: The address handle to free
2242 */
irdma_puda_free_ah(struct irdma_sc_dev * dev,struct irdma_sc_ah * ah)2243 void irdma_puda_free_ah(struct irdma_sc_dev *dev, struct irdma_sc_ah *ah)
2244 {
2245 struct irdma_pci_f *rf = dev_to_rf(dev);
2246
2247 if (!ah)
2248 return;
2249
2250 if (ah->ah_info.ah_valid) {
2251 irdma_ah_cqp_op(rf, ah, IRDMA_OP_AH_DESTROY, false, NULL, NULL);
2252 irdma_free_rsrc(rf, rf->allocated_ahs, ah->ah_info.ah_idx);
2253 }
2254
2255 kfree(ah);
2256 }
2257
2258 /**
2259 * irdma_gsi_ud_qp_ah_cb - callback after creation of AH for GSI/ID QP
2260 * @cqp_request: pointer to cqp_request of create AH
2261 */
irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request * cqp_request)2262 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request)
2263 {
2264 struct irdma_sc_ah *sc_ah = cqp_request->param;
2265
2266 if (!cqp_request->compl_info.op_ret_val)
2267 sc_ah->ah_info.ah_valid = true;
2268 else
2269 sc_ah->ah_info.ah_valid = false;
2270 }
2271
2272 /**
2273 * irdma_prm_add_pble_mem - add moemory to pble resources
2274 * @pprm: pble resource manager
2275 * @pchunk: chunk of memory to add
2276 */
irdma_prm_add_pble_mem(struct irdma_pble_prm * pprm,struct irdma_chunk * pchunk)2277 enum irdma_status_code irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm,
2278 struct irdma_chunk *pchunk)
2279 {
2280 u64 sizeofbitmap;
2281
2282 if (pchunk->size & 0xfff)
2283 return IRDMA_ERR_PARAM;
2284
2285 sizeofbitmap = (u64)pchunk->size >> pprm->pble_shift;
2286
2287 pchunk->bitmapmem.size = sizeofbitmap >> 3;
2288 pchunk->bitmapmem.va = kzalloc(pchunk->bitmapmem.size, GFP_KERNEL);
2289
2290 if (!pchunk->bitmapmem.va)
2291 return IRDMA_ERR_NO_MEMORY;
2292
2293 pchunk->bitmapbuf = pchunk->bitmapmem.va;
2294 bitmap_zero(pchunk->bitmapbuf, sizeofbitmap);
2295
2296 pchunk->sizeofbitmap = sizeofbitmap;
2297 /* each pble is 8 bytes hence shift by 3 */
2298 pprm->total_pble_alloc += pchunk->size >> 3;
2299 pprm->free_pble_cnt += pchunk->size >> 3;
2300
2301 return 0;
2302 }
2303
2304 /**
2305 * irdma_prm_get_pbles - get pble's from prm
2306 * @pprm: pble resource manager
2307 * @chunkinfo: nformation about chunk where pble's were acquired
2308 * @mem_size: size of pble memory needed
2309 * @vaddr: returns virtual address of pble memory
2310 * @fpm_addr: returns fpm address of pble memory
2311 */
2312 enum irdma_status_code
irdma_prm_get_pbles(struct irdma_pble_prm * pprm,struct irdma_pble_chunkinfo * chunkinfo,u64 mem_size,u64 ** vaddr,u64 * fpm_addr)2313 irdma_prm_get_pbles(struct irdma_pble_prm *pprm,
2314 struct irdma_pble_chunkinfo *chunkinfo, u64 mem_size,
2315 u64 **vaddr, u64 *fpm_addr)
2316 {
2317 u64 bits_needed;
2318 u64 bit_idx = PBLE_INVALID_IDX;
2319 struct irdma_chunk *pchunk = NULL;
2320 struct list_head *chunk_entry = pprm->clist.next;
2321 u32 offset;
2322 unsigned long flags;
2323 *vaddr = NULL;
2324 *fpm_addr = 0;
2325
2326 bits_needed = DIV_ROUND_UP_ULL(mem_size, BIT_ULL(pprm->pble_shift));
2327
2328 spin_lock_irqsave(&pprm->prm_lock, flags);
2329 while (chunk_entry != &pprm->clist) {
2330 pchunk = (struct irdma_chunk *)chunk_entry;
2331 bit_idx = bitmap_find_next_zero_area(pchunk->bitmapbuf,
2332 pchunk->sizeofbitmap, 0,
2333 bits_needed, 0);
2334 if (bit_idx < pchunk->sizeofbitmap)
2335 break;
2336
2337 /* list.next used macro */
2338 chunk_entry = pchunk->list.next;
2339 }
2340
2341 if (!pchunk || bit_idx >= pchunk->sizeofbitmap) {
2342 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2343 return IRDMA_ERR_NO_MEMORY;
2344 }
2345
2346 bitmap_set(pchunk->bitmapbuf, bit_idx, bits_needed);
2347 offset = bit_idx << pprm->pble_shift;
2348 *vaddr = pchunk->vaddr + offset;
2349 *fpm_addr = pchunk->fpm_addr + offset;
2350
2351 chunkinfo->pchunk = pchunk;
2352 chunkinfo->bit_idx = bit_idx;
2353 chunkinfo->bits_used = bits_needed;
2354 /* 3 is sizeof pble divide */
2355 pprm->free_pble_cnt -= chunkinfo->bits_used << (pprm->pble_shift - 3);
2356 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2357
2358 return 0;
2359 }
2360
2361 /**
2362 * irdma_prm_return_pbles - return pbles back to prm
2363 * @pprm: pble resource manager
2364 * @chunkinfo: chunk where pble's were acquired and to be freed
2365 */
irdma_prm_return_pbles(struct irdma_pble_prm * pprm,struct irdma_pble_chunkinfo * chunkinfo)2366 void irdma_prm_return_pbles(struct irdma_pble_prm *pprm,
2367 struct irdma_pble_chunkinfo *chunkinfo)
2368 {
2369 unsigned long flags;
2370
2371 spin_lock_irqsave(&pprm->prm_lock, flags);
2372 pprm->free_pble_cnt += chunkinfo->bits_used << (pprm->pble_shift - 3);
2373 bitmap_clear(chunkinfo->pchunk->bitmapbuf, chunkinfo->bit_idx,
2374 chunkinfo->bits_used);
2375 spin_unlock_irqrestore(&pprm->prm_lock, flags);
2376 }
2377
irdma_map_vm_page_list(struct irdma_hw * hw,void * va,dma_addr_t * pg_dma,u32 pg_cnt)2378 enum irdma_status_code irdma_map_vm_page_list(struct irdma_hw *hw, void *va,
2379 dma_addr_t *pg_dma, u32 pg_cnt)
2380 {
2381 struct page *vm_page;
2382 int i;
2383 u8 *addr;
2384
2385 addr = (u8 *)(uintptr_t)va;
2386 for (i = 0; i < pg_cnt; i++) {
2387 vm_page = vmalloc_to_page(addr);
2388 if (!vm_page)
2389 goto err;
2390
2391 pg_dma[i] = dma_map_page(hw->device, vm_page, 0, PAGE_SIZE,
2392 DMA_BIDIRECTIONAL);
2393 if (dma_mapping_error(hw->device, pg_dma[i]))
2394 goto err;
2395
2396 addr += PAGE_SIZE;
2397 }
2398
2399 return 0;
2400
2401 err:
2402 irdma_unmap_vm_page_list(hw, pg_dma, i);
2403 return IRDMA_ERR_NO_MEMORY;
2404 }
2405
irdma_unmap_vm_page_list(struct irdma_hw * hw,dma_addr_t * pg_dma,u32 pg_cnt)2406 void irdma_unmap_vm_page_list(struct irdma_hw *hw, dma_addr_t *pg_dma, u32 pg_cnt)
2407 {
2408 int i;
2409
2410 for (i = 0; i < pg_cnt; i++)
2411 dma_unmap_page(hw->device, pg_dma[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
2412 }
2413
2414 /**
2415 * irdma_pble_free_paged_mem - free virtual paged memory
2416 * @chunk: chunk to free with paged memory
2417 */
irdma_pble_free_paged_mem(struct irdma_chunk * chunk)2418 void irdma_pble_free_paged_mem(struct irdma_chunk *chunk)
2419 {
2420 if (!chunk->pg_cnt)
2421 goto done;
2422
2423 irdma_unmap_vm_page_list(chunk->dev->hw, chunk->dmainfo.dmaaddrs,
2424 chunk->pg_cnt);
2425
2426 done:
2427 kfree(chunk->dmainfo.dmaaddrs);
2428 chunk->dmainfo.dmaaddrs = NULL;
2429 vfree(chunk->vaddr);
2430 chunk->vaddr = NULL;
2431 chunk->type = 0;
2432 }
2433
2434 /**
2435 * irdma_pble_get_paged_mem -allocate paged memory for pbles
2436 * @chunk: chunk to add for paged memory
2437 * @pg_cnt: number of pages needed
2438 */
irdma_pble_get_paged_mem(struct irdma_chunk * chunk,u32 pg_cnt)2439 enum irdma_status_code irdma_pble_get_paged_mem(struct irdma_chunk *chunk,
2440 u32 pg_cnt)
2441 {
2442 u32 size;
2443 void *va;
2444
2445 chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
2446 if (!chunk->dmainfo.dmaaddrs)
2447 return IRDMA_ERR_NO_MEMORY;
2448
2449 size = PAGE_SIZE * pg_cnt;
2450 va = vmalloc(size);
2451 if (!va)
2452 goto err;
2453
2454 if (irdma_map_vm_page_list(chunk->dev->hw, va, chunk->dmainfo.dmaaddrs,
2455 pg_cnt)) {
2456 vfree(va);
2457 goto err;
2458 }
2459 chunk->vaddr = va;
2460 chunk->size = size;
2461 chunk->pg_cnt = pg_cnt;
2462 chunk->type = PBLE_SD_PAGED;
2463
2464 return 0;
2465 err:
2466 kfree(chunk->dmainfo.dmaaddrs);
2467 chunk->dmainfo.dmaaddrs = NULL;
2468
2469 return IRDMA_ERR_NO_MEMORY;
2470 }
2471
2472 /**
2473 * irdma_alloc_ws_node_id - Allocate a tx scheduler node ID
2474 * @dev: device pointer
2475 */
irdma_alloc_ws_node_id(struct irdma_sc_dev * dev)2476 u16 irdma_alloc_ws_node_id(struct irdma_sc_dev *dev)
2477 {
2478 struct irdma_pci_f *rf = dev_to_rf(dev);
2479 u32 next = 1;
2480 u32 node_id;
2481
2482 if (irdma_alloc_rsrc(rf, rf->allocated_ws_nodes, rf->max_ws_node_id,
2483 &node_id, &next))
2484 return IRDMA_WS_NODE_INVALID;
2485
2486 return (u16)node_id;
2487 }
2488
2489 /**
2490 * irdma_free_ws_node_id - Free a tx scheduler node ID
2491 * @dev: device pointer
2492 * @node_id: Work scheduler node ID
2493 */
irdma_free_ws_node_id(struct irdma_sc_dev * dev,u16 node_id)2494 void irdma_free_ws_node_id(struct irdma_sc_dev *dev, u16 node_id)
2495 {
2496 struct irdma_pci_f *rf = dev_to_rf(dev);
2497
2498 irdma_free_rsrc(rf, rf->allocated_ws_nodes, (u32)node_id);
2499 }
2500
2501 /**
2502 * irdma_modify_qp_to_err - Modify a QP to error
2503 * @sc_qp: qp structure
2504 */
irdma_modify_qp_to_err(struct irdma_sc_qp * sc_qp)2505 void irdma_modify_qp_to_err(struct irdma_sc_qp *sc_qp)
2506 {
2507 struct irdma_qp *qp = sc_qp->qp_uk.back_qp;
2508 struct ib_qp_attr attr;
2509
2510 if (qp->iwdev->rf->reset)
2511 return;
2512 attr.qp_state = IB_QPS_ERR;
2513
2514 if (rdma_protocol_roce(qp->ibqp.device, 1))
2515 irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2516 else
2517 irdma_modify_qp(&qp->ibqp, &attr, IB_QP_STATE, NULL);
2518 }
2519
irdma_ib_qp_event(struct irdma_qp * iwqp,enum irdma_qp_event_type event)2520 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event)
2521 {
2522 struct ib_event ibevent;
2523
2524 if (!iwqp->ibqp.event_handler)
2525 return;
2526
2527 switch (event) {
2528 case IRDMA_QP_EVENT_CATASTROPHIC:
2529 ibevent.event = IB_EVENT_QP_FATAL;
2530 break;
2531 case IRDMA_QP_EVENT_ACCESS_ERR:
2532 ibevent.event = IB_EVENT_QP_ACCESS_ERR;
2533 break;
2534 }
2535 ibevent.device = iwqp->ibqp.device;
2536 ibevent.element.qp = &iwqp->ibqp;
2537 iwqp->ibqp.event_handler(&ibevent, iwqp->ibqp.qp_context);
2538 }
2539
