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4e9042e6 FL |
1 | /******************************************************************************* |
2 | * | |
3 | * Copyright (c) 2015-2016 Intel Corporation. All rights reserved. | |
4 | * | |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenFabrics.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | * | |
33 | *******************************************************************************/ | |
34 | ||
35 | #include <linux/module.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/etherdevice.h> | |
39 | #include <linux/ethtool.h> | |
40 | #include <linux/mii.h> | |
41 | #include <linux/if_vlan.h> | |
42 | #include <linux/crc32.h> | |
43 | #include <linux/in.h> | |
44 | #include <linux/ip.h> | |
45 | #include <linux/tcp.h> | |
46 | #include <linux/init.h> | |
47 | #include <linux/io.h> | |
48 | #include <asm/irq.h> | |
49 | #include <asm/byteorder.h> | |
50 | #include <net/netevent.h> | |
51 | #include <net/neighbour.h> | |
52 | #include "i40iw.h" | |
53 | ||
54 | /** | |
55 | * i40iw_arp_table - manage arp table | |
56 | * @iwdev: iwarp device | |
57 | * @ip_addr: ip address for device | |
58 | * @mac_addr: mac address ptr | |
59 | * @action: modify, delete or add | |
60 | */ | |
61 | int i40iw_arp_table(struct i40iw_device *iwdev, | |
20c61f7e | 62 | u32 *ip_addr, |
4e9042e6 FL |
63 | bool ipv4, |
64 | u8 *mac_addr, | |
65 | u32 action) | |
66 | { | |
67 | int arp_index; | |
68 | int err; | |
69 | u32 ip[4]; | |
70 | ||
71 | if (ipv4) { | |
72 | memset(ip, 0, sizeof(ip)); | |
73 | ip[0] = *ip_addr; | |
74 | } else { | |
75 | memcpy(ip, ip_addr, sizeof(ip)); | |
76 | } | |
77 | ||
78 | for (arp_index = 0; (u32)arp_index < iwdev->arp_table_size; arp_index++) | |
79 | if (memcmp(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)) == 0) | |
80 | break; | |
81 | switch (action) { | |
82 | case I40IW_ARP_ADD: | |
83 | if (arp_index != iwdev->arp_table_size) | |
84 | return -1; | |
85 | ||
86 | arp_index = 0; | |
87 | err = i40iw_alloc_resource(iwdev, iwdev->allocated_arps, | |
88 | iwdev->arp_table_size, | |
89 | (u32 *)&arp_index, | |
90 | &iwdev->next_arp_index); | |
91 | ||
92 | if (err) | |
93 | return err; | |
94 | ||
95 | memcpy(iwdev->arp_table[arp_index].ip_addr, ip, sizeof(ip)); | |
96 | ether_addr_copy(iwdev->arp_table[arp_index].mac_addr, mac_addr); | |
97 | break; | |
98 | case I40IW_ARP_RESOLVE: | |
99 | if (arp_index == iwdev->arp_table_size) | |
100 | return -1; | |
101 | break; | |
102 | case I40IW_ARP_DELETE: | |
103 | if (arp_index == iwdev->arp_table_size) | |
104 | return -1; | |
105 | memset(iwdev->arp_table[arp_index].ip_addr, 0, | |
106 | sizeof(iwdev->arp_table[arp_index].ip_addr)); | |
107 | eth_zero_addr(iwdev->arp_table[arp_index].mac_addr); | |
108 | i40iw_free_resource(iwdev, iwdev->allocated_arps, arp_index); | |
109 | break; | |
110 | default: | |
111 | return -1; | |
112 | } | |
113 | return arp_index; | |
114 | } | |
115 | ||
116 | /** | |
117 | * i40iw_wr32 - write 32 bits to hw register | |
118 | * @hw: hardware information including registers | |
119 | * @reg: register offset | |
120 | * @value: vvalue to write to register | |
121 | */ | |
122 | inline void i40iw_wr32(struct i40iw_hw *hw, u32 reg, u32 value) | |
123 | { | |
124 | writel(value, hw->hw_addr + reg); | |
125 | } | |
126 | ||
127 | /** | |
128 | * i40iw_rd32 - read a 32 bit hw register | |
129 | * @hw: hardware information including registers | |
130 | * @reg: register offset | |
131 | * | |
132 | * Return value of register content | |
133 | */ | |
134 | inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg) | |
135 | { | |
136 | return readl(hw->hw_addr + reg); | |
137 | } | |
138 | ||
139 | /** | |
140 | * i40iw_inetaddr_event - system notifier for netdev events | |
141 | * @notfier: not used | |
142 | * @event: event for notifier | |
143 | * @ptr: if address | |
144 | */ | |
145 | int i40iw_inetaddr_event(struct notifier_block *notifier, | |
146 | unsigned long event, | |
147 | void *ptr) | |
148 | { | |
149 | struct in_ifaddr *ifa = ptr; | |
150 | struct net_device *event_netdev = ifa->ifa_dev->dev; | |
151 | struct net_device *netdev; | |
152 | struct net_device *upper_dev; | |
153 | struct i40iw_device *iwdev; | |
154 | struct i40iw_handler *hdl; | |
20c61f7e | 155 | u32 local_ipaddr; |
e5e74b61 | 156 | u32 action = I40IW_ARP_ADD; |
4e9042e6 FL |
157 | |
158 | hdl = i40iw_find_netdev(event_netdev); | |
159 | if (!hdl) | |
160 | return NOTIFY_DONE; | |
161 | ||
162 | iwdev = &hdl->device; | |
871a8623 SS |
163 | if (iwdev->init_state < INET_NOTIFIER) |
164 | return NOTIFY_DONE; | |
165 | ||
4e9042e6 FL |
166 | netdev = iwdev->ldev->netdev; |
167 | upper_dev = netdev_master_upper_dev_get(netdev); | |
168 | if (netdev != event_netdev) | |
169 | return NOTIFY_DONE; | |
170 | ||
e5e74b61 MI |
171 | if (upper_dev) |
172 | local_ipaddr = ntohl( | |
173 | ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address); | |
174 | else | |
175 | local_ipaddr = ntohl(ifa->ifa_address); | |
4e9042e6 FL |
176 | switch (event) { |
177 | case NETDEV_DOWN: | |
e5e74b61 MI |
178 | action = I40IW_ARP_DELETE; |
179 | /* Fall through */ | |
4e9042e6 | 180 | case NETDEV_UP: |
e5e74b61 | 181 | /* Fall through */ |
4e9042e6 | 182 | case NETDEV_CHANGEADDR: |
4e9042e6 FL |
183 | i40iw_manage_arp_cache(iwdev, |
184 | netdev->dev_addr, | |
185 | &local_ipaddr, | |
186 | true, | |
e5e74b61 MI |
187 | action); |
188 | i40iw_if_notify(iwdev, netdev, &local_ipaddr, true, | |
189 | (action == I40IW_ARP_ADD) ? true : false); | |
4e9042e6 FL |
190 | break; |
191 | default: | |
192 | break; | |
193 | } | |
194 | return NOTIFY_DONE; | |
195 | } | |
196 | ||
197 | /** | |
198 | * i40iw_inet6addr_event - system notifier for ipv6 netdev events | |
199 | * @notfier: not used | |
200 | * @event: event for notifier | |
201 | * @ptr: if address | |
202 | */ | |
203 | int i40iw_inet6addr_event(struct notifier_block *notifier, | |
204 | unsigned long event, | |
205 | void *ptr) | |
206 | { | |
207 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; | |
208 | struct net_device *event_netdev = ifa->idev->dev; | |
209 | struct net_device *netdev; | |
210 | struct i40iw_device *iwdev; | |
211 | struct i40iw_handler *hdl; | |
20c61f7e | 212 | u32 local_ipaddr6[4]; |
e5e74b61 | 213 | u32 action = I40IW_ARP_ADD; |
4e9042e6 FL |
214 | |
215 | hdl = i40iw_find_netdev(event_netdev); | |
216 | if (!hdl) | |
217 | return NOTIFY_DONE; | |
218 | ||
219 | iwdev = &hdl->device; | |
871a8623 SS |
220 | if (iwdev->init_state < INET_NOTIFIER) |
221 | return NOTIFY_DONE; | |
222 | ||
4e9042e6 FL |
223 | netdev = iwdev->ldev->netdev; |
224 | if (netdev != event_netdev) | |
225 | return NOTIFY_DONE; | |
226 | ||
e5e74b61 | 227 | i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32); |
4e9042e6 FL |
228 | switch (event) { |
229 | case NETDEV_DOWN: | |
e5e74b61 MI |
230 | action = I40IW_ARP_DELETE; |
231 | /* Fall through */ | |
4e9042e6 FL |
232 | case NETDEV_UP: |
233 | /* Fall through */ | |
234 | case NETDEV_CHANGEADDR: | |
4e9042e6 FL |
235 | i40iw_manage_arp_cache(iwdev, |
236 | netdev->dev_addr, | |
237 | local_ipaddr6, | |
238 | false, | |
e5e74b61 MI |
239 | action); |
240 | i40iw_if_notify(iwdev, netdev, local_ipaddr6, false, | |
241 | (action == I40IW_ARP_ADD) ? true : false); | |
4e9042e6 FL |
242 | break; |
243 | default: | |
244 | break; | |
245 | } | |
246 | return NOTIFY_DONE; | |
247 | } | |
248 | ||
249 | /** | |
250 | * i40iw_net_event - system notifier for net events | |
251 | * @notfier: not used | |
252 | * @event: event for notifier | |
253 | * @ptr: neighbor | |
254 | */ | |
255 | int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr) | |
256 | { | |
257 | struct neighbour *neigh = ptr; | |
258 | struct i40iw_device *iwdev; | |
259 | struct i40iw_handler *iwhdl; | |
260 | __be32 *p; | |
261 | u32 local_ipaddr[4]; | |
262 | ||
263 | switch (event) { | |
264 | case NETEVENT_NEIGH_UPDATE: | |
265 | iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev); | |
266 | if (!iwhdl) | |
267 | return NOTIFY_DONE; | |
268 | iwdev = &iwhdl->device; | |
871a8623 SS |
269 | if (iwdev->init_state < INET_NOTIFIER) |
270 | return NOTIFY_DONE; | |
4e9042e6 FL |
271 | p = (__be32 *)neigh->primary_key; |
272 | i40iw_copy_ip_ntohl(local_ipaddr, p); | |
273 | if (neigh->nud_state & NUD_VALID) { | |
274 | i40iw_manage_arp_cache(iwdev, | |
275 | neigh->ha, | |
276 | local_ipaddr, | |
277 | false, | |
278 | I40IW_ARP_ADD); | |
279 | ||
280 | } else { | |
281 | i40iw_manage_arp_cache(iwdev, | |
282 | neigh->ha, | |
283 | local_ipaddr, | |
284 | false, | |
285 | I40IW_ARP_DELETE); | |
286 | } | |
287 | break; | |
288 | default: | |
289 | break; | |
290 | } | |
291 | return NOTIFY_DONE; | |
292 | } | |
293 | ||
294 | /** | |
295 | * i40iw_get_cqp_request - get cqp struct | |
296 | * @cqp: device cqp ptr | |
297 | * @wait: cqp to be used in wait mode | |
298 | */ | |
299 | struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait) | |
300 | { | |
301 | struct i40iw_cqp_request *cqp_request = NULL; | |
302 | unsigned long flags; | |
303 | ||
304 | spin_lock_irqsave(&cqp->req_lock, flags); | |
305 | if (!list_empty(&cqp->cqp_avail_reqs)) { | |
306 | cqp_request = list_entry(cqp->cqp_avail_reqs.next, | |
307 | struct i40iw_cqp_request, list); | |
308 | list_del_init(&cqp_request->list); | |
309 | } | |
310 | spin_unlock_irqrestore(&cqp->req_lock, flags); | |
311 | if (!cqp_request) { | |
312 | cqp_request = kzalloc(sizeof(*cqp_request), GFP_ATOMIC); | |
313 | if (cqp_request) { | |
314 | cqp_request->dynamic = true; | |
315 | INIT_LIST_HEAD(&cqp_request->list); | |
316 | init_waitqueue_head(&cqp_request->waitq); | |
317 | } | |
318 | } | |
319 | if (!cqp_request) { | |
320 | i40iw_pr_err("CQP Request Fail: No Memory"); | |
321 | return NULL; | |
322 | } | |
323 | ||
324 | if (wait) { | |
325 | atomic_set(&cqp_request->refcount, 2); | |
326 | cqp_request->waiting = true; | |
327 | } else { | |
328 | atomic_set(&cqp_request->refcount, 1); | |
329 | } | |
330 | return cqp_request; | |
331 | } | |
332 | ||
333 | /** | |
334 | * i40iw_free_cqp_request - free cqp request | |
335 | * @cqp: cqp ptr | |
336 | * @cqp_request: to be put back in cqp list | |
337 | */ | |
338 | void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request) | |
339 | { | |
44b99f88 | 340 | struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); |
4e9042e6 FL |
341 | unsigned long flags; |
342 | ||
343 | if (cqp_request->dynamic) { | |
344 | kfree(cqp_request); | |
345 | } else { | |
346 | cqp_request->request_done = false; | |
347 | cqp_request->callback_fcn = NULL; | |
348 | cqp_request->waiting = false; | |
349 | ||
350 | spin_lock_irqsave(&cqp->req_lock, flags); | |
351 | list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs); | |
352 | spin_unlock_irqrestore(&cqp->req_lock, flags); | |
353 | } | |
44b99f88 | 354 | wake_up(&iwdev->close_wq); |
4e9042e6 FL |
355 | } |
356 | ||
357 | /** | |
358 | * i40iw_put_cqp_request - dec ref count and free if 0 | |
359 | * @cqp: cqp ptr | |
360 | * @cqp_request: to be put back in cqp list | |
361 | */ | |
362 | void i40iw_put_cqp_request(struct i40iw_cqp *cqp, | |
363 | struct i40iw_cqp_request *cqp_request) | |
364 | { | |
365 | if (atomic_dec_and_test(&cqp_request->refcount)) | |
366 | i40iw_free_cqp_request(cqp, cqp_request); | |
367 | } | |
368 | ||
44b99f88 SS |
369 | /** |
370 | * i40iw_free_pending_cqp_request -free pending cqp request objs | |
371 | * @cqp: cqp ptr | |
372 | * @cqp_request: to be put back in cqp list | |
373 | */ | |
374 | static void i40iw_free_pending_cqp_request(struct i40iw_cqp *cqp, | |
375 | struct i40iw_cqp_request *cqp_request) | |
376 | { | |
377 | struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp); | |
378 | ||
379 | if (cqp_request->waiting) { | |
380 | cqp_request->compl_info.error = true; | |
381 | cqp_request->request_done = true; | |
382 | wake_up(&cqp_request->waitq); | |
383 | } | |
384 | i40iw_put_cqp_request(cqp, cqp_request); | |
385 | wait_event_timeout(iwdev->close_wq, | |
386 | !atomic_read(&cqp_request->refcount), | |
387 | 1000); | |
388 | } | |
389 | ||
390 | /** | |
391 | * i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions | |
392 | * @iwdev: iwarp device | |
393 | */ | |
394 | void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev) | |
395 | { | |
396 | struct i40iw_sc_dev *dev = &iwdev->sc_dev; | |
397 | struct i40iw_cqp *cqp = &iwdev->cqp; | |
398 | struct i40iw_cqp_request *cqp_request = NULL; | |
399 | struct cqp_commands_info *pcmdinfo = NULL; | |
400 | u32 i, pending_work, wqe_idx; | |
401 | ||
402 | pending_work = I40IW_RING_WORK_AVAILABLE(cqp->sc_cqp.sq_ring); | |
403 | wqe_idx = I40IW_RING_GETCURRENT_TAIL(cqp->sc_cqp.sq_ring); | |
404 | for (i = 0; i < pending_work; i++) { | |
405 | cqp_request = (struct i40iw_cqp_request *)(unsigned long)cqp->scratch_array[wqe_idx]; | |
406 | if (cqp_request) | |
407 | i40iw_free_pending_cqp_request(cqp, cqp_request); | |
408 | wqe_idx = (wqe_idx + 1) % I40IW_RING_GETSIZE(cqp->sc_cqp.sq_ring); | |
409 | } | |
410 | ||
411 | while (!list_empty(&dev->cqp_cmd_head)) { | |
412 | pcmdinfo = (struct cqp_commands_info *)i40iw_remove_head(&dev->cqp_cmd_head); | |
413 | cqp_request = container_of(pcmdinfo, struct i40iw_cqp_request, info); | |
414 | if (cqp_request) | |
415 | i40iw_free_pending_cqp_request(cqp, cqp_request); | |
416 | } | |
417 | } | |
418 | ||
4e9042e6 FL |
419 | /** |
420 | * i40iw_free_qp - callback after destroy cqp completes | |
421 | * @cqp_request: cqp request for destroy qp | |
422 | * @num: not used | |
423 | */ | |
424 | static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num) | |
425 | { | |
426 | struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param; | |
427 | struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp; | |
428 | struct i40iw_device *iwdev; | |
429 | u32 qp_num = iwqp->ibqp.qp_num; | |
430 | ||
431 | iwdev = iwqp->iwdev; | |
432 | ||
433 | i40iw_rem_pdusecount(iwqp->iwpd, iwdev); | |
434 | i40iw_free_qp_resources(iwdev, iwqp, qp_num); | |
d5965934 | 435 | i40iw_rem_devusecount(iwdev); |
4e9042e6 FL |
436 | } |
437 | ||
438 | /** | |
439 | * i40iw_wait_event - wait for completion | |
440 | * @iwdev: iwarp device | |
441 | * @cqp_request: cqp request to wait | |
442 | */ | |
443 | static int i40iw_wait_event(struct i40iw_device *iwdev, | |
444 | struct i40iw_cqp_request *cqp_request) | |
445 | { | |
446 | struct cqp_commands_info *info = &cqp_request->info; | |
447 | struct i40iw_cqp *iwcqp = &iwdev->cqp; | |
448 | bool cqp_error = false; | |
449 | int err_code = 0; | |
450 | int timeout_ret = 0; | |
451 | ||
452 | timeout_ret = wait_event_timeout(cqp_request->waitq, | |
453 | cqp_request->request_done, | |
454 | I40IW_EVENT_TIMEOUT); | |
455 | if (!timeout_ret) { | |
456 | i40iw_pr_err("error cqp command 0x%x timed out ret = %d\n", | |
457 | info->cqp_cmd, timeout_ret); | |
458 | err_code = -ETIME; | |
78300cf8 HO |
459 | if (!iwdev->reset) { |
460 | iwdev->reset = true; | |
461 | i40iw_request_reset(iwdev); | |
462 | } | |
4e9042e6 FL |
463 | goto done; |
464 | } | |
465 | cqp_error = cqp_request->compl_info.error; | |
466 | if (cqp_error) { | |
467 | i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n", | |
468 | info->cqp_cmd, cqp_request->compl_info.maj_err_code, | |
469 | cqp_request->compl_info.min_err_code); | |
470 | err_code = -EPROTO; | |
471 | goto done; | |
472 | } | |
473 | done: | |
474 | i40iw_put_cqp_request(iwcqp, cqp_request); | |
475 | return err_code; | |
476 | } | |
477 | ||
478 | /** | |
479 | * i40iw_handle_cqp_op - process cqp command | |
480 | * @iwdev: iwarp device | |
481 | * @cqp_request: cqp request to process | |
482 | */ | |
483 | enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev, | |
484 | struct i40iw_cqp_request | |
485 | *cqp_request) | |
486 | { | |
487 | struct i40iw_sc_dev *dev = &iwdev->sc_dev; | |
488 | enum i40iw_status_code status; | |
489 | struct cqp_commands_info *info = &cqp_request->info; | |
490 | int err_code = 0; | |
491 | ||
78300cf8 HO |
492 | if (iwdev->reset) { |
493 | i40iw_free_cqp_request(&iwdev->cqp, cqp_request); | |
494 | return I40IW_ERR_CQP_COMPL_ERROR; | |
495 | } | |
496 | ||
4e9042e6 FL |
497 | status = i40iw_process_cqp_cmd(dev, info); |
498 | if (status) { | |
499 | i40iw_pr_err("error cqp command 0x%x failed\n", info->cqp_cmd); | |
500 | i40iw_free_cqp_request(&iwdev->cqp, cqp_request); | |
501 | return status; | |
502 | } | |
503 | if (cqp_request->waiting) | |
504 | err_code = i40iw_wait_event(iwdev, cqp_request); | |
505 | if (err_code) | |
506 | status = I40IW_ERR_CQP_COMPL_ERROR; | |
507 | return status; | |
508 | } | |
509 | ||
d5965934 MI |
510 | /** |
511 | * i40iw_add_devusecount - add dev refcount | |
512 | * @iwdev: dev for refcount | |
513 | */ | |
514 | void i40iw_add_devusecount(struct i40iw_device *iwdev) | |
515 | { | |
516 | atomic64_inc(&iwdev->use_count); | |
517 | } | |
518 | ||
519 | /** | |
520 | * i40iw_rem_devusecount - decrement refcount for dev | |
521 | * @iwdev: device | |
522 | */ | |
523 | void i40iw_rem_devusecount(struct i40iw_device *iwdev) | |
524 | { | |
525 | if (!atomic64_dec_and_test(&iwdev->use_count)) | |
526 | return; | |
527 | wake_up(&iwdev->close_wq); | |
528 | } | |
529 | ||
4e9042e6 FL |
530 | /** |
531 | * i40iw_add_pdusecount - add pd refcount | |
532 | * @iwpd: pd for refcount | |
533 | */ | |
534 | void i40iw_add_pdusecount(struct i40iw_pd *iwpd) | |
535 | { | |
536 | atomic_inc(&iwpd->usecount); | |
537 | } | |
538 | ||
539 | /** | |
540 | * i40iw_rem_pdusecount - decrement refcount for pd and free if 0 | |
541 | * @iwpd: pd for refcount | |
542 | * @iwdev: iwarp device | |
543 | */ | |
544 | void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev) | |
545 | { | |
546 | if (!atomic_dec_and_test(&iwpd->usecount)) | |
547 | return; | |
548 | i40iw_free_resource(iwdev, iwdev->allocated_pds, iwpd->sc_pd.pd_id); | |
549 | kfree(iwpd); | |
550 | } | |
551 | ||
552 | /** | |
553 | * i40iw_add_ref - add refcount for qp | |
554 | * @ibqp: iqarp qp | |
555 | */ | |
556 | void i40iw_add_ref(struct ib_qp *ibqp) | |
557 | { | |
558 | struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp; | |
559 | ||
560 | atomic_inc(&iwqp->refcount); | |
561 | } | |
562 | ||
563 | /** | |
564 | * i40iw_rem_ref - rem refcount for qp and free if 0 | |
565 | * @ibqp: iqarp qp | |
566 | */ | |
567 | void i40iw_rem_ref(struct ib_qp *ibqp) | |
568 | { | |
569 | struct i40iw_qp *iwqp; | |
570 | enum i40iw_status_code status; | |
571 | struct i40iw_cqp_request *cqp_request; | |
572 | struct cqp_commands_info *cqp_info; | |
573 | struct i40iw_device *iwdev; | |
574 | u32 qp_num; | |
996abf0a | 575 | unsigned long flags; |
4e9042e6 FL |
576 | |
577 | iwqp = to_iwqp(ibqp); | |
996abf0a IM |
578 | iwdev = iwqp->iwdev; |
579 | spin_lock_irqsave(&iwdev->qptable_lock, flags); | |
580 | if (!atomic_dec_and_test(&iwqp->refcount)) { | |
581 | spin_unlock_irqrestore(&iwdev->qptable_lock, flags); | |
4e9042e6 | 582 | return; |
996abf0a | 583 | } |
4e9042e6 | 584 | |
4e9042e6 FL |
585 | qp_num = iwqp->ibqp.qp_num; |
586 | iwdev->qp_table[qp_num] = NULL; | |
996abf0a | 587 | spin_unlock_irqrestore(&iwdev->qptable_lock, flags); |
4e9042e6 FL |
588 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); |
589 | if (!cqp_request) | |
590 | return; | |
591 | ||
592 | cqp_request->callback_fcn = i40iw_free_qp; | |
593 | cqp_request->param = (void *)&iwqp->sc_qp; | |
594 | cqp_info = &cqp_request->info; | |
595 | cqp_info->cqp_cmd = OP_QP_DESTROY; | |
596 | cqp_info->post_sq = 1; | |
597 | cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp; | |
598 | cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; | |
599 | cqp_info->in.u.qp_destroy.remove_hash_idx = true; | |
600 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
b5e452a0 SS |
601 | if (!status) |
602 | return; | |
603 | ||
604 | i40iw_rem_pdusecount(iwqp->iwpd, iwdev); | |
605 | i40iw_free_qp_resources(iwdev, iwqp, qp_num); | |
606 | i40iw_rem_devusecount(iwdev); | |
4e9042e6 FL |
607 | } |
608 | ||
609 | /** | |
610 | * i40iw_get_qp - get qp address | |
611 | * @device: iwarp device | |
612 | * @qpn: qp number | |
613 | */ | |
614 | struct ib_qp *i40iw_get_qp(struct ib_device *device, int qpn) | |
615 | { | |
616 | struct i40iw_device *iwdev = to_iwdev(device); | |
617 | ||
618 | if ((qpn < IW_FIRST_QPN) || (qpn >= iwdev->max_qp)) | |
619 | return NULL; | |
620 | ||
621 | return &iwdev->qp_table[qpn]->ibqp; | |
622 | } | |
623 | ||
624 | /** | |
625 | * i40iw_debug_buf - print debug msg and buffer is mask set | |
626 | * @dev: hardware control device structure | |
627 | * @mask: mask to compare if to print debug buffer | |
628 | * @buf: points buffer addr | |
629 | * @size: saize of buffer to print | |
630 | */ | |
631 | void i40iw_debug_buf(struct i40iw_sc_dev *dev, | |
632 | enum i40iw_debug_flag mask, | |
633 | char *desc, | |
634 | u64 *buf, | |
635 | u32 size) | |
636 | { | |
637 | u32 i; | |
638 | ||
639 | if (!(dev->debug_mask & mask)) | |
640 | return; | |
641 | i40iw_debug(dev, mask, "%s\n", desc); | |
642 | i40iw_debug(dev, mask, "starting address virt=%p phy=%llxh\n", buf, | |
643 | (unsigned long long)virt_to_phys(buf)); | |
644 | ||
645 | for (i = 0; i < size; i += 8) | |
646 | i40iw_debug(dev, mask, "index %03d val: %016llx\n", i, buf[i / 8]); | |
647 | } | |
648 | ||
649 | /** | |
650 | * i40iw_get_hw_addr - return hw addr | |
651 | * @par: points to shared dev | |
652 | */ | |
653 | u8 __iomem *i40iw_get_hw_addr(void *par) | |
654 | { | |
655 | struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)par; | |
656 | ||
657 | return dev->hw->hw_addr; | |
658 | } | |
659 | ||
660 | /** | |
661 | * i40iw_remove_head - return head entry and remove from list | |
662 | * @list: list for entry | |
663 | */ | |
664 | void *i40iw_remove_head(struct list_head *list) | |
665 | { | |
666 | struct list_head *entry; | |
667 | ||
668 | if (list_empty(list)) | |
669 | return NULL; | |
670 | ||
671 | entry = (void *)list->next; | |
672 | list_del(entry); | |
673 | return (void *)entry; | |
674 | } | |
675 | ||
676 | /** | |
677 | * i40iw_allocate_dma_mem - Memory alloc helper fn | |
678 | * @hw: pointer to the HW structure | |
679 | * @mem: ptr to mem struct to fill out | |
680 | * @size: size of memory requested | |
681 | * @alignment: what to align the allocation to | |
682 | */ | |
683 | enum i40iw_status_code i40iw_allocate_dma_mem(struct i40iw_hw *hw, | |
684 | struct i40iw_dma_mem *mem, | |
685 | u64 size, | |
686 | u32 alignment) | |
687 | { | |
688 | struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context; | |
689 | ||
690 | if (!mem) | |
691 | return I40IW_ERR_PARAM; | |
692 | mem->size = ALIGN(size, alignment); | |
693 | mem->va = dma_zalloc_coherent(&pcidev->dev, mem->size, | |
694 | (dma_addr_t *)&mem->pa, GFP_KERNEL); | |
695 | if (!mem->va) | |
696 | return I40IW_ERR_NO_MEMORY; | |
697 | return 0; | |
698 | } | |
699 | ||
700 | /** | |
701 | * i40iw_free_dma_mem - Memory free helper fn | |
702 | * @hw: pointer to the HW structure | |
703 | * @mem: ptr to mem struct to free | |
704 | */ | |
705 | void i40iw_free_dma_mem(struct i40iw_hw *hw, struct i40iw_dma_mem *mem) | |
706 | { | |
707 | struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context; | |
708 | ||
709 | if (!mem || !mem->va) | |
710 | return; | |
711 | ||
712 | dma_free_coherent(&pcidev->dev, mem->size, | |
713 | mem->va, (dma_addr_t)mem->pa); | |
714 | mem->va = NULL; | |
715 | } | |
716 | ||
717 | /** | |
718 | * i40iw_allocate_virt_mem - virtual memory alloc helper fn | |
719 | * @hw: pointer to the HW structure | |
720 | * @mem: ptr to mem struct to fill out | |
721 | * @size: size of memory requested | |
722 | */ | |
723 | enum i40iw_status_code i40iw_allocate_virt_mem(struct i40iw_hw *hw, | |
724 | struct i40iw_virt_mem *mem, | |
725 | u32 size) | |
726 | { | |
727 | if (!mem) | |
728 | return I40IW_ERR_PARAM; | |
729 | ||
730 | mem->size = size; | |
731 | mem->va = kzalloc(size, GFP_KERNEL); | |
732 | ||
733 | if (mem->va) | |
734 | return 0; | |
735 | else | |
736 | return I40IW_ERR_NO_MEMORY; | |
737 | } | |
738 | ||
739 | /** | |
740 | * i40iw_free_virt_mem - virtual memory free helper fn | |
741 | * @hw: pointer to the HW structure | |
742 | * @mem: ptr to mem struct to free | |
743 | */ | |
744 | enum i40iw_status_code i40iw_free_virt_mem(struct i40iw_hw *hw, | |
745 | struct i40iw_virt_mem *mem) | |
746 | { | |
747 | if (!mem) | |
748 | return I40IW_ERR_PARAM; | |
7eaf8313 MI |
749 | /* |
750 | * mem->va points to the parent of mem, so both mem and mem->va | |
751 | * can not be touched once mem->va is freed | |
752 | */ | |
4e9042e6 | 753 | kfree(mem->va); |
4e9042e6 FL |
754 | return 0; |
755 | } | |
756 | ||
757 | /** | |
758 | * i40iw_cqp_sds_cmd - create cqp command for sd | |
759 | * @dev: hardware control device structure | |
760 | * @sd_info: information for sd cqp | |
761 | * | |
762 | */ | |
763 | enum i40iw_status_code i40iw_cqp_sds_cmd(struct i40iw_sc_dev *dev, | |
764 | struct i40iw_update_sds_info *sdinfo) | |
765 | { | |
766 | enum i40iw_status_code status; | |
767 | struct i40iw_cqp_request *cqp_request; | |
768 | struct cqp_commands_info *cqp_info; | |
769 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
770 | ||
771 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); | |
772 | if (!cqp_request) | |
773 | return I40IW_ERR_NO_MEMORY; | |
774 | cqp_info = &cqp_request->info; | |
775 | memcpy(&cqp_info->in.u.update_pe_sds.info, sdinfo, | |
776 | sizeof(cqp_info->in.u.update_pe_sds.info)); | |
777 | cqp_info->cqp_cmd = OP_UPDATE_PE_SDS; | |
778 | cqp_info->post_sq = 1; | |
779 | cqp_info->in.u.update_pe_sds.dev = dev; | |
780 | cqp_info->in.u.update_pe_sds.scratch = (uintptr_t)cqp_request; | |
781 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
782 | if (status) | |
783 | i40iw_pr_err("CQP-OP Update SD's fail"); | |
784 | return status; | |
785 | } | |
786 | ||
0fc2dc58 HO |
787 | /** |
788 | * i40iw_qp_suspend_resume - cqp command for suspend/resume | |
789 | * @dev: hardware control device structure | |
790 | * @qp: hardware control qp | |
791 | * @suspend: flag if suspend or resume | |
792 | */ | |
793 | void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp, bool suspend) | |
794 | { | |
795 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
796 | struct i40iw_cqp_request *cqp_request; | |
797 | struct i40iw_sc_cqp *cqp = dev->cqp; | |
798 | struct cqp_commands_info *cqp_info; | |
799 | enum i40iw_status_code status; | |
800 | ||
801 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); | |
802 | if (!cqp_request) | |
803 | return; | |
804 | ||
805 | cqp_info = &cqp_request->info; | |
806 | cqp_info->cqp_cmd = (suspend) ? OP_SUSPEND : OP_RESUME; | |
807 | cqp_info->in.u.suspend_resume.cqp = cqp; | |
808 | cqp_info->in.u.suspend_resume.qp = qp; | |
809 | cqp_info->in.u.suspend_resume.scratch = (uintptr_t)cqp_request; | |
810 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
811 | if (status) | |
812 | i40iw_pr_err("CQP-OP QP Suspend/Resume fail"); | |
813 | } | |
814 | ||
4e9042e6 FL |
815 | /** |
816 | * i40iw_term_modify_qp - modify qp for term message | |
817 | * @qp: hardware control qp | |
818 | * @next_state: qp's next state | |
819 | * @term: terminate code | |
820 | * @term_len: length | |
821 | */ | |
822 | void i40iw_term_modify_qp(struct i40iw_sc_qp *qp, u8 next_state, u8 term, u8 term_len) | |
823 | { | |
824 | struct i40iw_qp *iwqp; | |
825 | ||
826 | iwqp = (struct i40iw_qp *)qp->back_qp; | |
827 | i40iw_next_iw_state(iwqp, next_state, 0, term, term_len); | |
828 | }; | |
829 | ||
830 | /** | |
831 | * i40iw_terminate_done - after terminate is completed | |
832 | * @qp: hardware control qp | |
833 | * @timeout_occurred: indicates if terminate timer expired | |
834 | */ | |
835 | void i40iw_terminate_done(struct i40iw_sc_qp *qp, int timeout_occurred) | |
836 | { | |
837 | struct i40iw_qp *iwqp; | |
838 | u32 next_iwarp_state = I40IW_QP_STATE_ERROR; | |
839 | u8 hte = 0; | |
840 | bool first_time; | |
841 | unsigned long flags; | |
842 | ||
843 | iwqp = (struct i40iw_qp *)qp->back_qp; | |
844 | spin_lock_irqsave(&iwqp->lock, flags); | |
845 | if (iwqp->hte_added) { | |
846 | iwqp->hte_added = 0; | |
847 | hte = 1; | |
848 | } | |
849 | first_time = !(qp->term_flags & I40IW_TERM_DONE); | |
850 | qp->term_flags |= I40IW_TERM_DONE; | |
851 | spin_unlock_irqrestore(&iwqp->lock, flags); | |
852 | if (first_time) { | |
853 | if (!timeout_occurred) | |
854 | i40iw_terminate_del_timer(qp); | |
855 | else | |
856 | next_iwarp_state = I40IW_QP_STATE_CLOSING; | |
857 | ||
858 | i40iw_next_iw_state(iwqp, next_iwarp_state, hte, 0, 0); | |
859 | i40iw_cm_disconn(iwqp); | |
860 | } | |
861 | } | |
862 | ||
863 | /** | |
864 | * i40iw_terminate_imeout - timeout happened | |
865 | * @context: points to iwarp qp | |
866 | */ | |
867 | static void i40iw_terminate_timeout(unsigned long context) | |
868 | { | |
869 | struct i40iw_qp *iwqp = (struct i40iw_qp *)context; | |
870 | struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp; | |
871 | ||
872 | i40iw_terminate_done(qp, 1); | |
d627b506 | 873 | i40iw_rem_ref(&iwqp->ibqp); |
4e9042e6 FL |
874 | } |
875 | ||
876 | /** | |
877 | * i40iw_terminate_start_timer - start terminate timeout | |
878 | * @qp: hardware control qp | |
879 | */ | |
880 | void i40iw_terminate_start_timer(struct i40iw_sc_qp *qp) | |
881 | { | |
882 | struct i40iw_qp *iwqp; | |
883 | ||
884 | iwqp = (struct i40iw_qp *)qp->back_qp; | |
d627b506 | 885 | i40iw_add_ref(&iwqp->ibqp); |
96ff2c11 GT |
886 | setup_timer(&iwqp->terminate_timer, i40iw_terminate_timeout, |
887 | (unsigned long)iwqp); | |
4e9042e6 | 888 | iwqp->terminate_timer.expires = jiffies + HZ; |
4e9042e6 FL |
889 | add_timer(&iwqp->terminate_timer); |
890 | } | |
891 | ||
892 | /** | |
893 | * i40iw_terminate_del_timer - delete terminate timeout | |
894 | * @qp: hardware control qp | |
895 | */ | |
896 | void i40iw_terminate_del_timer(struct i40iw_sc_qp *qp) | |
897 | { | |
898 | struct i40iw_qp *iwqp; | |
899 | ||
900 | iwqp = (struct i40iw_qp *)qp->back_qp; | |
d627b506 SS |
901 | if (del_timer(&iwqp->terminate_timer)) |
902 | i40iw_rem_ref(&iwqp->ibqp); | |
4e9042e6 FL |
903 | } |
904 | ||
905 | /** | |
906 | * i40iw_cqp_generic_worker - generic worker for cqp | |
907 | * @work: work pointer | |
908 | */ | |
909 | static void i40iw_cqp_generic_worker(struct work_struct *work) | |
910 | { | |
911 | struct i40iw_virtchnl_work_info *work_info = | |
912 | &((struct virtchnl_work *)work)->work_info; | |
913 | ||
914 | if (work_info->worker_vf_dev) | |
915 | work_info->callback_fcn(work_info->worker_vf_dev); | |
916 | } | |
917 | ||
918 | /** | |
919 | * i40iw_cqp_spawn_worker - spawn worket thread | |
920 | * @iwdev: device struct pointer | |
921 | * @work_info: work request info | |
922 | * @iw_vf_idx: virtual function index | |
923 | */ | |
924 | void i40iw_cqp_spawn_worker(struct i40iw_sc_dev *dev, | |
925 | struct i40iw_virtchnl_work_info *work_info, | |
926 | u32 iw_vf_idx) | |
927 | { | |
928 | struct virtchnl_work *work; | |
929 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
930 | ||
931 | work = &iwdev->virtchnl_w[iw_vf_idx]; | |
932 | memcpy(&work->work_info, work_info, sizeof(*work_info)); | |
933 | INIT_WORK(&work->work, i40iw_cqp_generic_worker); | |
934 | queue_work(iwdev->virtchnl_wq, &work->work); | |
935 | } | |
936 | ||
937 | /** | |
938 | * i40iw_cqp_manage_hmc_fcn_worker - | |
939 | * @work: work pointer for hmc info | |
940 | */ | |
941 | static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct *work) | |
942 | { | |
943 | struct i40iw_cqp_request *cqp_request = | |
944 | ((struct virtchnl_work *)work)->cqp_request; | |
945 | struct i40iw_ccq_cqe_info ccq_cqe_info; | |
946 | struct i40iw_hmc_fcn_info *hmcfcninfo = | |
947 | &cqp_request->info.in.u.manage_hmc_pm.info; | |
948 | struct i40iw_device *iwdev = | |
949 | (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev->back_dev; | |
950 | ||
951 | ccq_cqe_info.cqp = NULL; | |
952 | ccq_cqe_info.maj_err_code = cqp_request->compl_info.maj_err_code; | |
953 | ccq_cqe_info.min_err_code = cqp_request->compl_info.min_err_code; | |
954 | ccq_cqe_info.op_code = cqp_request->compl_info.op_code; | |
955 | ccq_cqe_info.op_ret_val = cqp_request->compl_info.op_ret_val; | |
956 | ccq_cqe_info.scratch = 0; | |
957 | ccq_cqe_info.error = cqp_request->compl_info.error; | |
958 | hmcfcninfo->callback_fcn(cqp_request->info.in.u.manage_hmc_pm.dev, | |
959 | hmcfcninfo->cqp_callback_param, &ccq_cqe_info); | |
960 | i40iw_put_cqp_request(&iwdev->cqp, cqp_request); | |
961 | } | |
962 | ||
963 | /** | |
964 | * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion | |
965 | * @cqp_request: cqp request info struct for hmc fun | |
966 | * @unused: unused param of callback | |
967 | */ | |
968 | static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request *cqp_request, | |
969 | u32 unused) | |
970 | { | |
971 | struct virtchnl_work *work; | |
972 | struct i40iw_hmc_fcn_info *hmcfcninfo = | |
973 | &cqp_request->info.in.u.manage_hmc_pm.info; | |
974 | struct i40iw_device *iwdev = | |
975 | (struct i40iw_device *)cqp_request->info.in.u.manage_hmc_pm.dev-> | |
976 | back_dev; | |
977 | ||
978 | if (hmcfcninfo && hmcfcninfo->callback_fcn) { | |
979 | i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s1\n", __func__); | |
980 | atomic_inc(&cqp_request->refcount); | |
981 | work = &iwdev->virtchnl_w[hmcfcninfo->iw_vf_idx]; | |
982 | work->cqp_request = cqp_request; | |
983 | INIT_WORK(&work->work, i40iw_cqp_manage_hmc_fcn_worker); | |
984 | queue_work(iwdev->virtchnl_wq, &work->work); | |
985 | i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s2\n", __func__); | |
986 | } else { | |
987 | i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s: Something wrong\n", __func__); | |
988 | } | |
989 | } | |
990 | ||
991 | /** | |
992 | * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc | |
993 | * @dev: hardware control device structure | |
994 | * @hmcfcninfo: info for hmc | |
995 | */ | |
996 | enum i40iw_status_code i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev *dev, | |
997 | struct i40iw_hmc_fcn_info *hmcfcninfo) | |
998 | { | |
999 | enum i40iw_status_code status; | |
1000 | struct i40iw_cqp_request *cqp_request; | |
1001 | struct cqp_commands_info *cqp_info; | |
1002 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1003 | ||
1004 | i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_HMC, "%s\n", __func__); | |
1005 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false); | |
1006 | if (!cqp_request) | |
1007 | return I40IW_ERR_NO_MEMORY; | |
1008 | cqp_info = &cqp_request->info; | |
1009 | cqp_request->callback_fcn = i40iw_cqp_manage_hmc_fcn_callback; | |
1010 | cqp_request->param = hmcfcninfo; | |
1011 | memcpy(&cqp_info->in.u.manage_hmc_pm.info, hmcfcninfo, | |
1012 | sizeof(*hmcfcninfo)); | |
1013 | cqp_info->in.u.manage_hmc_pm.dev = dev; | |
1014 | cqp_info->cqp_cmd = OP_MANAGE_HMC_PM_FUNC_TABLE; | |
1015 | cqp_info->post_sq = 1; | |
1016 | cqp_info->in.u.manage_hmc_pm.scratch = (uintptr_t)cqp_request; | |
1017 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1018 | if (status) | |
1019 | i40iw_pr_err("CQP-OP Manage HMC fail"); | |
1020 | return status; | |
1021 | } | |
1022 | ||
1023 | /** | |
1024 | * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm | |
1025 | * @iwdev: function device struct | |
1026 | * @values_mem: buffer for fpm | |
1027 | * @hmc_fn_id: function id for fpm | |
1028 | */ | |
1029 | enum i40iw_status_code i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev *dev, | |
1030 | struct i40iw_dma_mem *values_mem, | |
1031 | u8 hmc_fn_id) | |
1032 | { | |
1033 | enum i40iw_status_code status; | |
1034 | struct i40iw_cqp_request *cqp_request; | |
1035 | struct cqp_commands_info *cqp_info; | |
1036 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1037 | ||
1038 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); | |
1039 | if (!cqp_request) | |
1040 | return I40IW_ERR_NO_MEMORY; | |
1041 | cqp_info = &cqp_request->info; | |
1042 | cqp_request->param = NULL; | |
1043 | cqp_info->in.u.query_fpm_values.cqp = dev->cqp; | |
1044 | cqp_info->in.u.query_fpm_values.fpm_values_pa = values_mem->pa; | |
1045 | cqp_info->in.u.query_fpm_values.fpm_values_va = values_mem->va; | |
1046 | cqp_info->in.u.query_fpm_values.hmc_fn_id = hmc_fn_id; | |
1047 | cqp_info->cqp_cmd = OP_QUERY_FPM_VALUES; | |
1048 | cqp_info->post_sq = 1; | |
1049 | cqp_info->in.u.query_fpm_values.scratch = (uintptr_t)cqp_request; | |
1050 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1051 | if (status) | |
1052 | i40iw_pr_err("CQP-OP Query FPM fail"); | |
1053 | return status; | |
1054 | } | |
1055 | ||
1056 | /** | |
1057 | * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw | |
1058 | * @dev: hardware control device structure | |
1059 | * @values_mem: buffer with fpm values | |
1060 | * @hmc_fn_id: function id for fpm | |
1061 | */ | |
1062 | enum i40iw_status_code i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev *dev, | |
1063 | struct i40iw_dma_mem *values_mem, | |
1064 | u8 hmc_fn_id) | |
1065 | { | |
1066 | enum i40iw_status_code status; | |
1067 | struct i40iw_cqp_request *cqp_request; | |
1068 | struct cqp_commands_info *cqp_info; | |
1069 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1070 | ||
1071 | cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true); | |
1072 | if (!cqp_request) | |
1073 | return I40IW_ERR_NO_MEMORY; | |
1074 | cqp_info = &cqp_request->info; | |
1075 | cqp_request->param = NULL; | |
1076 | cqp_info->in.u.commit_fpm_values.cqp = dev->cqp; | |
1077 | cqp_info->in.u.commit_fpm_values.fpm_values_pa = values_mem->pa; | |
1078 | cqp_info->in.u.commit_fpm_values.fpm_values_va = values_mem->va; | |
1079 | cqp_info->in.u.commit_fpm_values.hmc_fn_id = hmc_fn_id; | |
1080 | cqp_info->cqp_cmd = OP_COMMIT_FPM_VALUES; | |
1081 | cqp_info->post_sq = 1; | |
1082 | cqp_info->in.u.commit_fpm_values.scratch = (uintptr_t)cqp_request; | |
1083 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1084 | if (status) | |
1085 | i40iw_pr_err("CQP-OP Commit FPM fail"); | |
1086 | return status; | |
1087 | } | |
1088 | ||
1089 | /** | |
1090 | * i40iw_vf_wait_vchnl_resp - wait for channel msg | |
1091 | * @iwdev: function's device struct | |
1092 | */ | |
1093 | enum i40iw_status_code i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev *dev) | |
1094 | { | |
1095 | struct i40iw_device *iwdev = dev->back_dev; | |
4e9042e6 FL |
1096 | int timeout_ret; |
1097 | ||
1098 | i40iw_debug(dev, I40IW_DEBUG_VIRT, "%s[%u] dev %p, iwdev %p\n", | |
1099 | __func__, __LINE__, dev, iwdev); | |
f69c3331 IM |
1100 | |
1101 | atomic_set(&iwdev->vchnl_msgs, 2); | |
4e9042e6 FL |
1102 | timeout_ret = wait_event_timeout(iwdev->vchnl_waitq, |
1103 | (atomic_read(&iwdev->vchnl_msgs) == 1), | |
1104 | I40IW_VCHNL_EVENT_TIMEOUT); | |
1105 | atomic_dec(&iwdev->vchnl_msgs); | |
1106 | if (!timeout_ret) { | |
1107 | i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret); | |
f69c3331 IM |
1108 | atomic_set(&iwdev->vchnl_msgs, 0); |
1109 | dev->vchnl_up = false; | |
1110 | return I40IW_ERR_TIMEOUT; | |
4e9042e6 | 1111 | } |
f69c3331 IM |
1112 | wake_up(&dev->vf_reqs); |
1113 | return 0; | |
4e9042e6 FL |
1114 | } |
1115 | ||
d6f7bbcc HO |
1116 | /** |
1117 | * i40iw_cqp_cq_create_cmd - create a cq for the cqp | |
1118 | * @dev: device pointer | |
1119 | * @cq: pointer to created cq | |
1120 | */ | |
1121 | enum i40iw_status_code i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev *dev, | |
1122 | struct i40iw_sc_cq *cq) | |
1123 | { | |
1124 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1125 | struct i40iw_cqp *iwcqp = &iwdev->cqp; | |
1126 | struct i40iw_cqp_request *cqp_request; | |
1127 | struct cqp_commands_info *cqp_info; | |
1128 | enum i40iw_status_code status; | |
1129 | ||
1130 | cqp_request = i40iw_get_cqp_request(iwcqp, true); | |
1131 | if (!cqp_request) | |
1132 | return I40IW_ERR_NO_MEMORY; | |
1133 | ||
1134 | cqp_info = &cqp_request->info; | |
1135 | cqp_info->cqp_cmd = OP_CQ_CREATE; | |
1136 | cqp_info->post_sq = 1; | |
1137 | cqp_info->in.u.cq_create.cq = cq; | |
1138 | cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; | |
1139 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1140 | if (status) | |
1141 | i40iw_pr_err("CQP-OP Create QP fail"); | |
1142 | ||
1143 | return status; | |
1144 | } | |
1145 | ||
1146 | /** | |
1147 | * i40iw_cqp_qp_create_cmd - create a qp for the cqp | |
1148 | * @dev: device pointer | |
1149 | * @qp: pointer to created qp | |
1150 | */ | |
1151 | enum i40iw_status_code i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev *dev, | |
1152 | struct i40iw_sc_qp *qp) | |
1153 | { | |
1154 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1155 | struct i40iw_cqp *iwcqp = &iwdev->cqp; | |
1156 | struct i40iw_cqp_request *cqp_request; | |
1157 | struct cqp_commands_info *cqp_info; | |
1158 | struct i40iw_create_qp_info *qp_info; | |
1159 | enum i40iw_status_code status; | |
1160 | ||
1161 | cqp_request = i40iw_get_cqp_request(iwcqp, true); | |
1162 | if (!cqp_request) | |
1163 | return I40IW_ERR_NO_MEMORY; | |
1164 | ||
1165 | cqp_info = &cqp_request->info; | |
1166 | qp_info = &cqp_request->info.in.u.qp_create.info; | |
1167 | ||
1168 | memset(qp_info, 0, sizeof(*qp_info)); | |
1169 | ||
1170 | qp_info->cq_num_valid = true; | |
1171 | qp_info->next_iwarp_state = I40IW_QP_STATE_RTS; | |
1172 | ||
1173 | cqp_info->cqp_cmd = OP_QP_CREATE; | |
1174 | cqp_info->post_sq = 1; | |
1175 | cqp_info->in.u.qp_create.qp = qp; | |
1176 | cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; | |
1177 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1178 | if (status) | |
1179 | i40iw_pr_err("CQP-OP QP create fail"); | |
1180 | return status; | |
1181 | } | |
1182 | ||
1183 | /** | |
1184 | * i40iw_cqp_cq_destroy_cmd - destroy the cqp cq | |
1185 | * @dev: device pointer | |
1186 | * @cq: pointer to cq | |
1187 | */ | |
1188 | void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_cq *cq) | |
1189 | { | |
1190 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1191 | ||
1192 | i40iw_cq_wq_destroy(iwdev, cq); | |
1193 | } | |
1194 | ||
1195 | /** | |
1196 | * i40iw_cqp_qp_destroy_cmd - destroy the cqp | |
1197 | * @dev: device pointer | |
1198 | * @qp: pointer to qp | |
1199 | */ | |
1200 | void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp) | |
1201 | { | |
1202 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1203 | struct i40iw_cqp *iwcqp = &iwdev->cqp; | |
1204 | struct i40iw_cqp_request *cqp_request; | |
1205 | struct cqp_commands_info *cqp_info; | |
1206 | enum i40iw_status_code status; | |
1207 | ||
1208 | cqp_request = i40iw_get_cqp_request(iwcqp, true); | |
1209 | if (!cqp_request) | |
1210 | return; | |
1211 | ||
1212 | cqp_info = &cqp_request->info; | |
1213 | memset(cqp_info, 0, sizeof(*cqp_info)); | |
1214 | ||
1215 | cqp_info->cqp_cmd = OP_QP_DESTROY; | |
1216 | cqp_info->post_sq = 1; | |
1217 | cqp_info->in.u.qp_destroy.qp = qp; | |
1218 | cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request; | |
1219 | cqp_info->in.u.qp_destroy.remove_hash_idx = true; | |
1220 | status = i40iw_handle_cqp_op(iwdev, cqp_request); | |
1221 | if (status) | |
1222 | i40iw_pr_err("CQP QP_DESTROY fail"); | |
1223 | } | |
1224 | ||
1225 | ||
4e9042e6 FL |
1226 | /** |
1227 | * i40iw_ieq_mpa_crc_ae - generate AE for crc error | |
1228 | * @dev: hardware control device structure | |
1229 | * @qp: hardware control qp | |
1230 | */ | |
1231 | void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev *dev, struct i40iw_sc_qp *qp) | |
1232 | { | |
1233 | struct i40iw_qp_flush_info info; | |
1234 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1235 | ||
1236 | i40iw_debug(dev, I40IW_DEBUG_AEQ, "%s entered\n", __func__); | |
1237 | memset(&info, 0, sizeof(info)); | |
1238 | info.ae_code = I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR; | |
1239 | info.generate_ae = true; | |
1240 | info.ae_source = 0x3; | |
1241 | (void)i40iw_hw_flush_wqes(iwdev, qp, &info, false); | |
1242 | } | |
1243 | ||
1244 | /** | |
1245 | * i40iw_init_hash_desc - initialize hash for crc calculation | |
1246 | * @desc: cryption type | |
1247 | */ | |
34abf9ed | 1248 | enum i40iw_status_code i40iw_init_hash_desc(struct shash_desc **desc) |
4e9042e6 | 1249 | { |
34abf9ed TN |
1250 | struct crypto_shash *tfm; |
1251 | struct shash_desc *tdesc; | |
1252 | ||
1253 | tfm = crypto_alloc_shash("crc32c", 0, 0); | |
1254 | if (IS_ERR(tfm)) | |
1255 | return I40IW_ERR_MPA_CRC; | |
1256 | ||
1257 | tdesc = kzalloc(sizeof(*tdesc) + crypto_shash_descsize(tfm), | |
1258 | GFP_KERNEL); | |
1259 | if (!tdesc) { | |
1260 | crypto_free_shash(tfm); | |
4e9042e6 | 1261 | return I40IW_ERR_MPA_CRC; |
34abf9ed TN |
1262 | } |
1263 | tdesc->tfm = tfm; | |
1264 | *desc = tdesc; | |
1265 | ||
4e9042e6 FL |
1266 | return 0; |
1267 | } | |
1268 | ||
1269 | /** | |
1270 | * i40iw_free_hash_desc - free hash desc | |
1271 | * @desc: to be freed | |
1272 | */ | |
34abf9ed | 1273 | void i40iw_free_hash_desc(struct shash_desc *desc) |
4e9042e6 | 1274 | { |
34abf9ed TN |
1275 | if (desc) { |
1276 | crypto_free_shash(desc->tfm); | |
1277 | kfree(desc); | |
1278 | } | |
4e9042e6 FL |
1279 | } |
1280 | ||
1281 | /** | |
1282 | * i40iw_alloc_query_fpm_buf - allocate buffer for fpm | |
1283 | * @dev: hardware control device structure | |
1284 | * @mem: buffer ptr for fpm to be allocated | |
1285 | * @return: memory allocation status | |
1286 | */ | |
1287 | enum i40iw_status_code i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev *dev, | |
1288 | struct i40iw_dma_mem *mem) | |
1289 | { | |
1290 | enum i40iw_status_code status; | |
1291 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1292 | ||
1293 | status = i40iw_obj_aligned_mem(iwdev, mem, I40IW_QUERY_FPM_BUF_SIZE, | |
1294 | I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK); | |
1295 | return status; | |
1296 | } | |
1297 | ||
1298 | /** | |
1299 | * i40iw_ieq_check_mpacrc - check if mpa crc is OK | |
1300 | * @desc: desc for hash | |
1301 | * @addr: address of buffer for crc | |
1302 | * @length: length of buffer | |
1303 | * @value: value to be compared | |
1304 | */ | |
34abf9ed | 1305 | enum i40iw_status_code i40iw_ieq_check_mpacrc(struct shash_desc *desc, |
4e9042e6 FL |
1306 | void *addr, |
1307 | u32 length, | |
1308 | u32 value) | |
1309 | { | |
4e9042e6 FL |
1310 | u32 crc = 0; |
1311 | int ret; | |
1312 | enum i40iw_status_code ret_code = 0; | |
1313 | ||
34abf9ed TN |
1314 | crypto_shash_init(desc); |
1315 | ret = crypto_shash_update(desc, addr, length); | |
4e9042e6 | 1316 | if (!ret) |
34abf9ed | 1317 | crypto_shash_final(desc, (u8 *)&crc); |
4e9042e6 FL |
1318 | if (crc != value) { |
1319 | i40iw_pr_err("mpa crc check fail\n"); | |
1320 | ret_code = I40IW_ERR_MPA_CRC; | |
1321 | } | |
1322 | return ret_code; | |
1323 | } | |
1324 | ||
1325 | /** | |
1326 | * i40iw_ieq_get_qp - get qp based on quad in puda buffer | |
1327 | * @dev: hardware control device structure | |
1328 | * @buf: receive puda buffer on exception q | |
1329 | */ | |
1330 | struct i40iw_sc_qp *i40iw_ieq_get_qp(struct i40iw_sc_dev *dev, | |
1331 | struct i40iw_puda_buf *buf) | |
1332 | { | |
1333 | struct i40iw_device *iwdev = (struct i40iw_device *)dev->back_dev; | |
1334 | struct i40iw_qp *iwqp; | |
1335 | struct i40iw_cm_node *cm_node; | |
1336 | u32 loc_addr[4], rem_addr[4]; | |
1337 | u16 loc_port, rem_port; | |
1338 | struct ipv6hdr *ip6h; | |
1339 | struct iphdr *iph = (struct iphdr *)buf->iph; | |
1340 | struct tcphdr *tcph = (struct tcphdr *)buf->tcph; | |
1341 | ||
1342 | if (iph->version == 4) { | |
1343 | memset(loc_addr, 0, sizeof(loc_addr)); | |
1344 | loc_addr[0] = ntohl(iph->daddr); | |
1345 | memset(rem_addr, 0, sizeof(rem_addr)); | |
1346 | rem_addr[0] = ntohl(iph->saddr); | |
1347 | } else { | |
1348 | ip6h = (struct ipv6hdr *)buf->iph; | |
1349 | i40iw_copy_ip_ntohl(loc_addr, ip6h->daddr.in6_u.u6_addr32); | |
1350 | i40iw_copy_ip_ntohl(rem_addr, ip6h->saddr.in6_u.u6_addr32); | |
1351 | } | |
1352 | loc_port = ntohs(tcph->dest); | |
1353 | rem_port = ntohs(tcph->source); | |
1354 | ||
1355 | cm_node = i40iw_find_node(&iwdev->cm_core, rem_port, rem_addr, loc_port, | |
1356 | loc_addr, false); | |
1357 | if (!cm_node) | |
1358 | return NULL; | |
1359 | iwqp = cm_node->iwqp; | |
1360 | return &iwqp->sc_qp; | |
1361 | } | |
1362 | ||
1363 | /** | |
1364 | * i40iw_ieq_update_tcpip_info - update tcpip in the buffer | |
1365 | * @buf: puda to update | |
1366 | * @length: length of buffer | |
1367 | * @seqnum: seq number for tcp | |
1368 | */ | |
1369 | void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf *buf, u16 length, u32 seqnum) | |
1370 | { | |
1371 | struct tcphdr *tcph; | |
1372 | struct iphdr *iph; | |
1373 | u16 iphlen; | |
1374 | u16 packetsize; | |
1375 | u8 *addr = (u8 *)buf->mem.va; | |
1376 | ||
1377 | iphlen = (buf->ipv4) ? 20 : 40; | |
1378 | iph = (struct iphdr *)(addr + buf->maclen); | |
1379 | tcph = (struct tcphdr *)(addr + buf->maclen + iphlen); | |
1380 | packetsize = length + buf->tcphlen + iphlen; | |
1381 | ||
1382 | iph->tot_len = htons(packetsize); | |
1383 | tcph->seq = htonl(seqnum); | |
1384 | } | |
1385 | ||
1386 | /** | |
1387 | * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer | |
1388 | * @info: to get information | |
1389 | * @buf: puda buffer | |
1390 | */ | |
1391 | enum i40iw_status_code i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info *info, | |
1392 | struct i40iw_puda_buf *buf) | |
1393 | { | |
1394 | struct iphdr *iph; | |
1395 | struct ipv6hdr *ip6h; | |
1396 | struct tcphdr *tcph; | |
1397 | u16 iphlen; | |
1398 | u16 pkt_len; | |
1399 | u8 *mem = (u8 *)buf->mem.va; | |
1400 | struct ethhdr *ethh = (struct ethhdr *)buf->mem.va; | |
1401 | ||
1402 | if (ethh->h_proto == htons(0x8100)) { | |
1403 | info->vlan_valid = true; | |
1404 | buf->vlan_id = ntohs(((struct vlan_ethhdr *)ethh)->h_vlan_TCI) & VLAN_VID_MASK; | |
1405 | } | |
1406 | buf->maclen = (info->vlan_valid) ? 18 : 14; | |
1407 | iphlen = (info->l3proto) ? 40 : 20; | |
1408 | buf->ipv4 = (info->l3proto) ? false : true; | |
1409 | buf->iph = mem + buf->maclen; | |
1410 | iph = (struct iphdr *)buf->iph; | |
1411 | ||
1412 | buf->tcph = buf->iph + iphlen; | |
1413 | tcph = (struct tcphdr *)buf->tcph; | |
1414 | ||
1415 | if (buf->ipv4) { | |
1416 | pkt_len = ntohs(iph->tot_len); | |
1417 | } else { | |
1418 | ip6h = (struct ipv6hdr *)buf->iph; | |
1419 | pkt_len = ntohs(ip6h->payload_len) + iphlen; | |
1420 | } | |
1421 | ||
1422 | buf->totallen = pkt_len + buf->maclen; | |
1423 | ||
7581e96c | 1424 | if (info->payload_len < buf->totallen) { |
4e9042e6 FL |
1425 | i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n", |
1426 | info->payload_len, buf->totallen); | |
1427 | return I40IW_ERR_INVALID_SIZE; | |
1428 | } | |
1429 | ||
1430 | buf->tcphlen = (tcph->doff) << 2; | |
1431 | buf->datalen = pkt_len - iphlen - buf->tcphlen; | |
1432 | buf->data = (buf->datalen) ? buf->tcph + buf->tcphlen : NULL; | |
1433 | buf->hdrlen = buf->maclen + iphlen + buf->tcphlen; | |
1434 | buf->seqnum = ntohl(tcph->seq); | |
1435 | return 0; | |
1436 | } | |
1437 | ||
1438 | /** | |
1439 | * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats | |
d6f7bbcc | 1440 | * @vsi: pointer to the vsi structure |
4e9042e6 | 1441 | */ |
d6f7bbcc | 1442 | static void i40iw_hw_stats_timeout(unsigned long vsi) |
4e9042e6 | 1443 | { |
d6f7bbcc HO |
1444 | struct i40iw_sc_vsi *sc_vsi = (struct i40iw_sc_vsi *)vsi; |
1445 | struct i40iw_sc_dev *pf_dev = sc_vsi->dev; | |
1446 | struct i40iw_vsi_pestat *pf_devstat = sc_vsi->pestat; | |
1447 | struct i40iw_vsi_pestat *vf_devstat = NULL; | |
4e9042e6 FL |
1448 | u16 iw_vf_idx; |
1449 | unsigned long flags; | |
1450 | ||
1451 | /*PF*/ | |
d6f7bbcc HO |
1452 | i40iw_hw_stats_read_all(pf_devstat, &pf_devstat->hw_stats); |
1453 | ||
4e9042e6 | 1454 | for (iw_vf_idx = 0; iw_vf_idx < I40IW_MAX_PE_ENABLED_VF_COUNT; iw_vf_idx++) { |
d6f7bbcc | 1455 | spin_lock_irqsave(&pf_devstat->lock, flags); |
4e9042e6 FL |
1456 | if (pf_dev->vf_dev[iw_vf_idx]) { |
1457 | if (pf_dev->vf_dev[iw_vf_idx]->stats_initialized) { | |
d6f7bbcc HO |
1458 | vf_devstat = &pf_dev->vf_dev[iw_vf_idx]->pestat; |
1459 | i40iw_hw_stats_read_all(vf_devstat, &vf_devstat->hw_stats); | |
4e9042e6 FL |
1460 | } |
1461 | } | |
d6f7bbcc | 1462 | spin_unlock_irqrestore(&pf_devstat->lock, flags); |
4e9042e6 FL |
1463 | } |
1464 | ||
1465 | mod_timer(&pf_devstat->stats_timer, | |
1466 | jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); | |
1467 | } | |
1468 | ||
1469 | /** | |
1470 | * i40iw_hw_stats_start_timer - Start periodic stats timer | |
d6f7bbcc | 1471 | * @vsi: pointer to the vsi structure |
4e9042e6 | 1472 | */ |
d6f7bbcc | 1473 | void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi *vsi) |
4e9042e6 | 1474 | { |
d6f7bbcc | 1475 | struct i40iw_vsi_pestat *devstat = vsi->pestat; |
4e9042e6 | 1476 | |
96ff2c11 GT |
1477 | setup_timer(&devstat->stats_timer, i40iw_hw_stats_timeout, |
1478 | (unsigned long)vsi); | |
4e9042e6 FL |
1479 | mod_timer(&devstat->stats_timer, |
1480 | jiffies + msecs_to_jiffies(STATS_TIMER_DELAY)); | |
1481 | } | |
1482 | ||
1483 | /** | |
d6f7bbcc HO |
1484 | * i40iw_hw_stats_stop_timer - Delete periodic stats timer |
1485 | * @vsi: pointer to the vsi structure | |
4e9042e6 | 1486 | */ |
d6f7bbcc | 1487 | void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi *vsi) |
4e9042e6 | 1488 | { |
d6f7bbcc | 1489 | struct i40iw_vsi_pestat *devstat = vsi->pestat; |
4e9042e6 FL |
1490 | |
1491 | del_timer_sync(&devstat->stats_timer); | |
1492 | } |