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e3219ce6 ASJ |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Driver | |
4 | * Copyright(c) 2013 - 2015 Intel Corporation. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in | |
19 | * the file called "COPYING". | |
20 | * | |
21 | * Contact Information: | |
22 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | ******************************************************************************/ | |
26 | ||
27 | #include <linux/list.h> | |
28 | #include <linux/errno.h> | |
29 | ||
30 | #include "i40e.h" | |
31 | #include "i40e_prototype.h" | |
32 | #include "i40e_client.h" | |
33 | ||
34 | static const char i40e_client_interface_version_str[] = I40E_CLIENT_VERSION_STR; | |
35 | ||
36 | static LIST_HEAD(i40e_devices); | |
37 | static DEFINE_MUTEX(i40e_device_mutex); | |
38 | ||
39 | static LIST_HEAD(i40e_clients); | |
40 | static DEFINE_MUTEX(i40e_client_mutex); | |
41 | ||
42 | static LIST_HEAD(i40e_client_instances); | |
43 | static DEFINE_MUTEX(i40e_client_instance_mutex); | |
44 | ||
45 | static int i40e_client_virtchnl_send(struct i40e_info *ldev, | |
46 | struct i40e_client *client, | |
47 | u32 vf_id, u8 *msg, u16 len); | |
48 | ||
49 | static int i40e_client_setup_qvlist(struct i40e_info *ldev, | |
50 | struct i40e_client *client, | |
51 | struct i40e_qvlist_info *qvlist_info); | |
52 | ||
53 | static void i40e_client_request_reset(struct i40e_info *ldev, | |
54 | struct i40e_client *client, | |
55 | u32 reset_level); | |
56 | ||
57 | static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, | |
58 | struct i40e_client *client, | |
59 | bool is_vf, u32 vf_id, | |
60 | u32 flag, u32 valid_flag); | |
61 | ||
62 | static struct i40e_ops i40e_lan_ops = { | |
63 | .virtchnl_send = i40e_client_virtchnl_send, | |
64 | .setup_qvlist = i40e_client_setup_qvlist, | |
65 | .request_reset = i40e_client_request_reset, | |
66 | .update_vsi_ctxt = i40e_client_update_vsi_ctxt, | |
67 | }; | |
68 | ||
69 | /** | |
70 | * i40e_client_type_to_vsi_type - convert client type to vsi type | |
71 | * @client_type: the i40e_client type | |
72 | * | |
73 | * returns the related vsi type value | |
74 | **/ | |
75 | static | |
76 | enum i40e_vsi_type i40e_client_type_to_vsi_type(enum i40e_client_type type) | |
77 | { | |
78 | switch (type) { | |
79 | case I40E_CLIENT_IWARP: | |
80 | return I40E_VSI_IWARP; | |
81 | ||
82 | case I40E_CLIENT_VMDQ2: | |
83 | return I40E_VSI_VMDQ2; | |
84 | ||
85 | default: | |
86 | pr_err("i40e: Client type unknown\n"); | |
87 | return I40E_VSI_TYPE_UNKNOWN; | |
88 | } | |
89 | } | |
90 | ||
91 | /** | |
92 | * i40e_client_get_params - Get the params that can change at runtime | |
93 | * @vsi: the VSI with the message | |
94 | * @param: clinet param struct | |
95 | * | |
96 | **/ | |
97 | static | |
98 | int i40e_client_get_params(struct i40e_vsi *vsi, struct i40e_params *params) | |
99 | { | |
100 | struct i40e_dcbx_config *dcb_cfg = &vsi->back->hw.local_dcbx_config; | |
101 | int i = 0; | |
102 | ||
103 | for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { | |
104 | u8 tc = dcb_cfg->etscfg.prioritytable[i]; | |
105 | u16 qs_handle; | |
106 | ||
107 | /* If TC is not enabled for VSI use TC0 for UP */ | |
108 | if (!(vsi->tc_config.enabled_tc & BIT(tc))) | |
109 | tc = 0; | |
110 | ||
111 | qs_handle = le16_to_cpu(vsi->info.qs_handle[tc]); | |
112 | params->qos.prio_qos[i].tc = tc; | |
113 | params->qos.prio_qos[i].qs_handle = qs_handle; | |
114 | if (qs_handle == I40E_AQ_VSI_QS_HANDLE_INVALID) { | |
115 | dev_err(&vsi->back->pdev->dev, "Invalid queue set handle for TC = %d, vsi id = %d\n", | |
116 | tc, vsi->id); | |
117 | return -EINVAL; | |
118 | } | |
119 | } | |
120 | ||
121 | params->mtu = vsi->netdev->mtu; | |
122 | return 0; | |
123 | } | |
124 | ||
125 | /** | |
126 | * i40e_notify_client_of_vf_msg - call the client vf message callback | |
127 | * @vsi: the VSI with the message | |
128 | * @vf_id: the absolute VF id that sent the message | |
129 | * @msg: message buffer | |
130 | * @len: length of the message | |
131 | * | |
132 | * If there is a client to this VSI, call the client | |
133 | **/ | |
134 | void | |
135 | i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id, u8 *msg, u16 len) | |
136 | { | |
137 | struct i40e_client_instance *cdev; | |
138 | ||
139 | if (!vsi) | |
140 | return; | |
141 | mutex_lock(&i40e_client_instance_mutex); | |
142 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
143 | if (cdev->lan_info.pf == vsi->back) { | |
144 | if (!cdev->client || | |
145 | !cdev->client->ops || | |
146 | !cdev->client->ops->virtchnl_receive) { | |
147 | dev_dbg(&vsi->back->pdev->dev, | |
148 | "Cannot locate client instance virtual channel receive routine\n"); | |
149 | continue; | |
150 | } | |
91cdca4f CS |
151 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
152 | &cdev->state)) { | |
153 | dev_dbg(&vsi->back->pdev->dev, "Client is not open, abort virtchnl_receive\n"); | |
154 | continue; | |
155 | } | |
e3219ce6 ASJ |
156 | cdev->client->ops->virtchnl_receive(&cdev->lan_info, |
157 | cdev->client, | |
158 | vf_id, msg, len); | |
159 | } | |
160 | } | |
161 | mutex_unlock(&i40e_client_instance_mutex); | |
162 | } | |
163 | ||
164 | /** | |
165 | * i40e_notify_client_of_l2_param_changes - call the client notify callback | |
166 | * @vsi: the VSI with l2 param changes | |
167 | * | |
168 | * If there is a client to this VSI, call the client | |
169 | **/ | |
170 | void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi) | |
171 | { | |
172 | struct i40e_client_instance *cdev; | |
173 | struct i40e_params params; | |
174 | ||
175 | if (!vsi) | |
176 | return; | |
177 | memset(¶ms, 0, sizeof(params)); | |
178 | i40e_client_get_params(vsi, ¶ms); | |
179 | mutex_lock(&i40e_client_instance_mutex); | |
180 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
181 | if (cdev->lan_info.pf == vsi->back) { | |
182 | if (!cdev->client || | |
183 | !cdev->client->ops || | |
184 | !cdev->client->ops->l2_param_change) { | |
185 | dev_dbg(&vsi->back->pdev->dev, | |
186 | "Cannot locate client instance l2_param_change routine\n"); | |
187 | continue; | |
188 | } | |
91cdca4f CS |
189 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
190 | &cdev->state)) { | |
191 | dev_dbg(&vsi->back->pdev->dev, "Client is not open, abort l2 param change\n"); | |
192 | continue; | |
193 | } | |
e3219ce6 ASJ |
194 | cdev->lan_info.params = params; |
195 | cdev->client->ops->l2_param_change(&cdev->lan_info, | |
196 | cdev->client, | |
197 | ¶ms); | |
198 | } | |
199 | } | |
200 | mutex_unlock(&i40e_client_instance_mutex); | |
201 | } | |
202 | ||
203 | /** | |
204 | * i40e_notify_client_of_netdev_open - call the client open callback | |
205 | * @vsi: the VSI with netdev opened | |
206 | * | |
207 | * If there is a client to this netdev, call the client with open | |
208 | **/ | |
209 | void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi) | |
210 | { | |
211 | struct i40e_client_instance *cdev; | |
f38ff2ee | 212 | int ret = 0; |
e3219ce6 ASJ |
213 | |
214 | if (!vsi) | |
215 | return; | |
216 | mutex_lock(&i40e_client_instance_mutex); | |
217 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
218 | if (cdev->lan_info.netdev == vsi->netdev) { | |
219 | if (!cdev->client || | |
220 | !cdev->client->ops || !cdev->client->ops->open) { | |
221 | dev_dbg(&vsi->back->pdev->dev, | |
222 | "Cannot locate client instance open routine\n"); | |
223 | continue; | |
224 | } | |
f38ff2ee ASJ |
225 | if (!(test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
226 | &cdev->state))) { | |
227 | ret = cdev->client->ops->open(&cdev->lan_info, | |
228 | cdev->client); | |
229 | if (!ret) | |
230 | set_bit(__I40E_CLIENT_INSTANCE_OPENED, | |
231 | &cdev->state); | |
232 | } | |
e3219ce6 ASJ |
233 | } |
234 | } | |
235 | mutex_unlock(&i40e_client_instance_mutex); | |
236 | } | |
237 | ||
238 | /** | |
239 | * i40e_client_release_qvlist | |
240 | * @ldev: pointer to L2 context. | |
241 | * | |
242 | **/ | |
243 | static void i40e_client_release_qvlist(struct i40e_info *ldev) | |
244 | { | |
245 | struct i40e_qvlist_info *qvlist_info = ldev->qvlist_info; | |
246 | u32 i; | |
247 | ||
248 | if (!ldev->qvlist_info) | |
249 | return; | |
250 | ||
251 | for (i = 0; i < qvlist_info->num_vectors; i++) { | |
252 | struct i40e_pf *pf = ldev->pf; | |
253 | struct i40e_qv_info *qv_info; | |
254 | u32 reg_idx; | |
255 | ||
256 | qv_info = &qvlist_info->qv_info[i]; | |
257 | if (!qv_info) | |
258 | continue; | |
259 | reg_idx = I40E_PFINT_LNKLSTN(qv_info->v_idx - 1); | |
260 | wr32(&pf->hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); | |
261 | } | |
262 | kfree(ldev->qvlist_info); | |
263 | ldev->qvlist_info = NULL; | |
264 | } | |
265 | ||
266 | /** | |
267 | * i40e_notify_client_of_netdev_close - call the client close callback | |
268 | * @vsi: the VSI with netdev closed | |
269 | * @reset: true when close called due to a reset pending | |
270 | * | |
271 | * If there is a client to this netdev, call the client with close | |
272 | **/ | |
273 | void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset) | |
274 | { | |
275 | struct i40e_client_instance *cdev; | |
276 | ||
277 | if (!vsi) | |
278 | return; | |
279 | mutex_lock(&i40e_client_instance_mutex); | |
280 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
281 | if (cdev->lan_info.netdev == vsi->netdev) { | |
282 | if (!cdev->client || | |
283 | !cdev->client->ops || !cdev->client->ops->close) { | |
284 | dev_dbg(&vsi->back->pdev->dev, | |
285 | "Cannot locate client instance close routine\n"); | |
286 | continue; | |
287 | } | |
288 | cdev->client->ops->close(&cdev->lan_info, cdev->client, | |
289 | reset); | |
290 | i40e_client_release_qvlist(&cdev->lan_info); | |
291 | } | |
292 | } | |
293 | mutex_unlock(&i40e_client_instance_mutex); | |
294 | } | |
295 | ||
296 | /** | |
297 | * i40e_notify_client_of_vf_reset - call the client vf reset callback | |
298 | * @pf: PF device pointer | |
299 | * @vf_id: asolute id of VF being reset | |
300 | * | |
301 | * If there is a client attached to this PF, notify when a VF is reset | |
302 | **/ | |
303 | void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id) | |
304 | { | |
305 | struct i40e_client_instance *cdev; | |
306 | ||
307 | if (!pf) | |
308 | return; | |
309 | mutex_lock(&i40e_client_instance_mutex); | |
310 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
311 | if (cdev->lan_info.pf == pf) { | |
312 | if (!cdev->client || | |
313 | !cdev->client->ops || | |
314 | !cdev->client->ops->vf_reset) { | |
315 | dev_dbg(&pf->pdev->dev, | |
316 | "Cannot locate client instance VF reset routine\n"); | |
317 | continue; | |
318 | } | |
91cdca4f CS |
319 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
320 | &cdev->state)) { | |
321 | dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-reset\n"); | |
322 | continue; | |
323 | } | |
e3219ce6 ASJ |
324 | cdev->client->ops->vf_reset(&cdev->lan_info, |
325 | cdev->client, vf_id); | |
326 | } | |
327 | } | |
328 | mutex_unlock(&i40e_client_instance_mutex); | |
329 | } | |
330 | ||
331 | /** | |
332 | * i40e_notify_client_of_vf_enable - call the client vf notification callback | |
333 | * @pf: PF device pointer | |
334 | * @num_vfs: the number of VFs currently enabled, 0 for disable | |
335 | * | |
336 | * If there is a client attached to this PF, call its VF notification routine | |
337 | **/ | |
338 | void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs) | |
339 | { | |
340 | struct i40e_client_instance *cdev; | |
341 | ||
342 | if (!pf) | |
343 | return; | |
344 | mutex_lock(&i40e_client_instance_mutex); | |
345 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
346 | if (cdev->lan_info.pf == pf) { | |
347 | if (!cdev->client || | |
348 | !cdev->client->ops || | |
349 | !cdev->client->ops->vf_enable) { | |
350 | dev_dbg(&pf->pdev->dev, | |
351 | "Cannot locate client instance VF enable routine\n"); | |
352 | continue; | |
353 | } | |
91cdca4f CS |
354 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
355 | &cdev->state)) { | |
356 | dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-enable\n"); | |
357 | continue; | |
358 | } | |
e3219ce6 ASJ |
359 | cdev->client->ops->vf_enable(&cdev->lan_info, |
360 | cdev->client, num_vfs); | |
361 | } | |
362 | } | |
363 | mutex_unlock(&i40e_client_instance_mutex); | |
364 | } | |
365 | ||
366 | /** | |
367 | * i40e_vf_client_capable - ask the client if it likes the specified VF | |
368 | * @pf: PF device pointer | |
369 | * @vf_id: the VF in question | |
370 | * | |
371 | * If there is a client of the specified type attached to this PF, call | |
372 | * its vf_capable routine | |
373 | **/ | |
374 | int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id, | |
375 | enum i40e_client_type type) | |
376 | { | |
377 | struct i40e_client_instance *cdev; | |
378 | int capable = false; | |
379 | ||
380 | if (!pf) | |
381 | return false; | |
382 | mutex_lock(&i40e_client_instance_mutex); | |
383 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
384 | if (cdev->lan_info.pf == pf) { | |
385 | if (!cdev->client || | |
386 | !cdev->client->ops || | |
387 | !cdev->client->ops->vf_capable || | |
388 | !(cdev->client->type == type)) { | |
389 | dev_dbg(&pf->pdev->dev, | |
390 | "Cannot locate client instance VF capability routine\n"); | |
391 | continue; | |
392 | } | |
91cdca4f CS |
393 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, |
394 | &cdev->state)) { | |
395 | dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-capable\n"); | |
396 | continue; | |
397 | } | |
e3219ce6 ASJ |
398 | capable = cdev->client->ops->vf_capable(&cdev->lan_info, |
399 | cdev->client, | |
400 | vf_id); | |
401 | break; | |
402 | } | |
403 | } | |
404 | mutex_unlock(&i40e_client_instance_mutex); | |
405 | return capable; | |
406 | } | |
407 | ||
408 | /** | |
409 | * i40e_vsi_lookup - finds a matching VSI from the PF list starting at start_vsi | |
410 | * @pf: board private structure | |
411 | * @type: vsi type | |
412 | * @start_vsi: a VSI pointer from where to start the search | |
413 | * | |
414 | * Returns non NULL on success or NULL for failure | |
415 | **/ | |
416 | struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, | |
417 | enum i40e_vsi_type type, | |
418 | struct i40e_vsi *start_vsi) | |
419 | { | |
420 | struct i40e_vsi *vsi; | |
421 | int i = 0; | |
422 | ||
423 | if (start_vsi) { | |
424 | for (i = 0; i < pf->num_alloc_vsi; i++) { | |
425 | vsi = pf->vsi[i]; | |
426 | if (vsi == start_vsi) | |
427 | break; | |
428 | } | |
429 | } | |
430 | for (; i < pf->num_alloc_vsi; i++) { | |
431 | vsi = pf->vsi[i]; | |
432 | if (vsi && vsi->type == type) | |
433 | return vsi; | |
434 | } | |
435 | ||
436 | return NULL; | |
437 | } | |
438 | ||
439 | /** | |
440 | * i40e_client_add_instance - add a client instance struct to the instance list | |
441 | * @pf: pointer to the board struct | |
442 | * @client: pointer to a client struct in the client list. | |
f38ff2ee | 443 | * @existing: if there was already an existing instance |
e3219ce6 | 444 | * |
f38ff2ee | 445 | * Returns cdev ptr on success or if already exists, NULL on failure |
e3219ce6 ASJ |
446 | **/ |
447 | static | |
448 | struct i40e_client_instance *i40e_client_add_instance(struct i40e_pf *pf, | |
f38ff2ee ASJ |
449 | struct i40e_client *client, |
450 | bool *existing) | |
e3219ce6 ASJ |
451 | { |
452 | struct i40e_client_instance *cdev; | |
453 | struct netdev_hw_addr *mac = NULL; | |
454 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
455 | ||
456 | mutex_lock(&i40e_client_instance_mutex); | |
457 | list_for_each_entry(cdev, &i40e_client_instances, list) { | |
458 | if ((cdev->lan_info.pf == pf) && (cdev->client == client)) { | |
f38ff2ee | 459 | *existing = true; |
e3219ce6 ASJ |
460 | goto out; |
461 | } | |
462 | } | |
463 | cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); | |
464 | if (!cdev) | |
465 | goto out; | |
466 | ||
467 | cdev->lan_info.pf = (void *)pf; | |
468 | cdev->lan_info.netdev = vsi->netdev; | |
469 | cdev->lan_info.pcidev = pf->pdev; | |
470 | cdev->lan_info.fid = pf->hw.pf_id; | |
471 | cdev->lan_info.ftype = I40E_CLIENT_FTYPE_PF; | |
472 | cdev->lan_info.hw_addr = pf->hw.hw_addr; | |
473 | cdev->lan_info.ops = &i40e_lan_ops; | |
474 | cdev->lan_info.version.major = I40E_CLIENT_VERSION_MAJOR; | |
475 | cdev->lan_info.version.minor = I40E_CLIENT_VERSION_MINOR; | |
476 | cdev->lan_info.version.build = I40E_CLIENT_VERSION_BUILD; | |
477 | cdev->lan_info.fw_maj_ver = pf->hw.aq.fw_maj_ver; | |
478 | cdev->lan_info.fw_min_ver = pf->hw.aq.fw_min_ver; | |
479 | cdev->lan_info.fw_build = pf->hw.aq.fw_build; | |
480 | set_bit(__I40E_CLIENT_INSTANCE_NONE, &cdev->state); | |
481 | ||
482 | if (i40e_client_get_params(vsi, &cdev->lan_info.params)) { | |
483 | kfree(cdev); | |
484 | cdev = NULL; | |
485 | goto out; | |
486 | } | |
487 | ||
488 | cdev->lan_info.msix_count = pf->num_iwarp_msix; | |
489 | cdev->lan_info.msix_entries = &pf->msix_entries[pf->iwarp_base_vector]; | |
490 | ||
491 | mac = list_first_entry(&cdev->lan_info.netdev->dev_addrs.list, | |
492 | struct netdev_hw_addr, list); | |
493 | if (mac) | |
494 | ether_addr_copy(cdev->lan_info.lanmac, mac->addr); | |
495 | else | |
496 | dev_err(&pf->pdev->dev, "MAC address list is empty!\n"); | |
497 | ||
498 | cdev->client = client; | |
499 | INIT_LIST_HEAD(&cdev->list); | |
500 | list_add(&cdev->list, &i40e_client_instances); | |
501 | out: | |
502 | mutex_unlock(&i40e_client_instance_mutex); | |
503 | return cdev; | |
504 | } | |
505 | ||
506 | /** | |
507 | * i40e_client_del_instance - removes a client instance from the list | |
508 | * @pf: pointer to the board struct | |
509 | * | |
510 | * Returns 0 on success or non-0 on error | |
511 | **/ | |
512 | static | |
513 | int i40e_client_del_instance(struct i40e_pf *pf, struct i40e_client *client) | |
514 | { | |
515 | struct i40e_client_instance *cdev, *tmp; | |
516 | int ret = -ENODEV; | |
517 | ||
518 | mutex_lock(&i40e_client_instance_mutex); | |
519 | list_for_each_entry_safe(cdev, tmp, &i40e_client_instances, list) { | |
520 | if ((cdev->lan_info.pf != pf) || (cdev->client != client)) | |
521 | continue; | |
522 | ||
523 | dev_info(&pf->pdev->dev, "Deleted instance of Client %s, of dev %d bus=0x%02x func=0x%02x)\n", | |
524 | client->name, pf->hw.pf_id, | |
525 | pf->hw.bus.device, pf->hw.bus.func); | |
526 | list_del(&cdev->list); | |
527 | kfree(cdev); | |
528 | ret = 0; | |
529 | break; | |
530 | } | |
531 | mutex_unlock(&i40e_client_instance_mutex); | |
532 | return ret; | |
533 | } | |
534 | ||
535 | /** | |
536 | * i40e_client_subtask - client maintenance work | |
537 | * @pf: board private structure | |
538 | **/ | |
539 | void i40e_client_subtask(struct i40e_pf *pf) | |
540 | { | |
541 | struct i40e_client_instance *cdev; | |
542 | struct i40e_client *client; | |
f38ff2ee | 543 | bool existing = false; |
e3219ce6 ASJ |
544 | int ret = 0; |
545 | ||
546 | if (!(pf->flags & I40E_FLAG_SERVICE_CLIENT_REQUESTED)) | |
547 | return; | |
548 | pf->flags &= ~I40E_FLAG_SERVICE_CLIENT_REQUESTED; | |
549 | ||
550 | /* If we're down or resetting, just bail */ | |
551 | if (test_bit(__I40E_DOWN, &pf->state) || | |
552 | test_bit(__I40E_CONFIG_BUSY, &pf->state)) | |
553 | return; | |
554 | ||
555 | /* Check client state and instantiate client if client registered */ | |
556 | mutex_lock(&i40e_client_mutex); | |
557 | list_for_each_entry(client, &i40e_clients, list) { | |
558 | /* first check client is registered */ | |
559 | if (!test_bit(__I40E_CLIENT_REGISTERED, &client->state)) | |
560 | continue; | |
561 | ||
562 | /* Do we also need the LAN VSI to be up, to create instance */ | |
563 | if (!(client->flags & I40E_CLIENT_FLAGS_LAUNCH_ON_PROBE)) { | |
564 | /* check if L2 VSI is up, if not we are not ready */ | |
565 | if (test_bit(__I40E_DOWN, &pf->vsi[pf->lan_vsi]->state)) | |
566 | continue; | |
f38ff2ee ASJ |
567 | } else { |
568 | dev_warn(&pf->pdev->dev, "This client %s is being instanciated at probe\n", | |
569 | client->name); | |
e3219ce6 ASJ |
570 | } |
571 | ||
572 | /* Add the client instance to the instance list */ | |
f38ff2ee | 573 | cdev = i40e_client_add_instance(pf, client, &existing); |
e3219ce6 ASJ |
574 | if (!cdev) |
575 | continue; | |
576 | ||
f38ff2ee ASJ |
577 | if (!existing) { |
578 | /* Also up the ref_cnt for no. of instances of this | |
579 | * client. | |
580 | */ | |
581 | atomic_inc(&client->ref_cnt); | |
582 | dev_info(&pf->pdev->dev, "Added instance of Client %s to PF%d bus=0x%02x func=0x%02x\n", | |
583 | client->name, pf->hw.pf_id, | |
584 | pf->hw.bus.device, pf->hw.bus.func); | |
585 | } | |
e3219ce6 | 586 | |
3a0f5292 | 587 | mutex_lock(&i40e_client_instance_mutex); |
e3219ce6 ASJ |
588 | /* Send an Open request to the client */ |
589 | atomic_inc(&cdev->ref_cnt); | |
590 | if (client->ops && client->ops->open) | |
591 | ret = client->ops->open(&cdev->lan_info, client); | |
592 | atomic_dec(&cdev->ref_cnt); | |
593 | if (!ret) { | |
594 | set_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); | |
595 | } else { | |
596 | /* remove client instance */ | |
0d8ab54a | 597 | mutex_unlock(&i40e_client_instance_mutex); |
e3219ce6 ASJ |
598 | i40e_client_del_instance(pf, client); |
599 | atomic_dec(&client->ref_cnt); | |
600 | continue; | |
601 | } | |
3a0f5292 | 602 | mutex_unlock(&i40e_client_instance_mutex); |
e3219ce6 ASJ |
603 | } |
604 | mutex_unlock(&i40e_client_mutex); | |
605 | } | |
606 | ||
607 | /** | |
608 | * i40e_lan_add_device - add a lan device struct to the list of lan devices | |
609 | * @pf: pointer to the board struct | |
610 | * | |
611 | * Returns 0 on success or none 0 on error | |
612 | **/ | |
613 | int i40e_lan_add_device(struct i40e_pf *pf) | |
614 | { | |
615 | struct i40e_device *ldev; | |
616 | int ret = 0; | |
617 | ||
618 | mutex_lock(&i40e_device_mutex); | |
619 | list_for_each_entry(ldev, &i40e_devices, list) { | |
620 | if (ldev->pf == pf) { | |
621 | ret = -EEXIST; | |
622 | goto out; | |
623 | } | |
624 | } | |
625 | ldev = kzalloc(sizeof(*ldev), GFP_KERNEL); | |
626 | if (!ldev) { | |
627 | ret = -ENOMEM; | |
628 | goto out; | |
629 | } | |
630 | ldev->pf = pf; | |
631 | INIT_LIST_HEAD(&ldev->list); | |
632 | list_add(&ldev->list, &i40e_devices); | |
633 | dev_info(&pf->pdev->dev, "Added LAN device PF%d bus=0x%02x func=0x%02x\n", | |
634 | pf->hw.pf_id, pf->hw.bus.device, pf->hw.bus.func); | |
635 | ||
636 | /* Since in some cases register may have happened before a device gets | |
f38ff2ee ASJ |
637 | * added, we can schedule a subtask to go initiate the clients if |
638 | * they can be launched at probe time. | |
e3219ce6 ASJ |
639 | */ |
640 | pf->flags |= I40E_FLAG_SERVICE_CLIENT_REQUESTED; | |
641 | i40e_service_event_schedule(pf); | |
642 | ||
643 | out: | |
644 | mutex_unlock(&i40e_device_mutex); | |
645 | return ret; | |
646 | } | |
647 | ||
648 | /** | |
649 | * i40e_lan_del_device - removes a lan device from the device list | |
650 | * @pf: pointer to the board struct | |
651 | * | |
652 | * Returns 0 on success or non-0 on error | |
653 | **/ | |
654 | int i40e_lan_del_device(struct i40e_pf *pf) | |
655 | { | |
656 | struct i40e_device *ldev, *tmp; | |
657 | int ret = -ENODEV; | |
658 | ||
659 | mutex_lock(&i40e_device_mutex); | |
660 | list_for_each_entry_safe(ldev, tmp, &i40e_devices, list) { | |
661 | if (ldev->pf == pf) { | |
662 | dev_info(&pf->pdev->dev, "Deleted LAN device PF%d bus=0x%02x func=0x%02x\n", | |
663 | pf->hw.pf_id, pf->hw.bus.device, | |
664 | pf->hw.bus.func); | |
665 | list_del(&ldev->list); | |
666 | kfree(ldev); | |
667 | ret = 0; | |
668 | break; | |
669 | } | |
670 | } | |
671 | ||
672 | mutex_unlock(&i40e_device_mutex); | |
673 | return ret; | |
674 | } | |
675 | ||
676 | /** | |
677 | * i40e_client_release - release client specific resources | |
678 | * @client: pointer to the registered client | |
679 | * | |
680 | * Return 0 on success or < 0 on error | |
681 | **/ | |
682 | static int i40e_client_release(struct i40e_client *client) | |
683 | { | |
684 | struct i40e_client_instance *cdev, *tmp; | |
682d11d7 | 685 | struct i40e_pf *pf; |
e3219ce6 ASJ |
686 | int ret = 0; |
687 | ||
688 | LIST_HEAD(cdevs_tmp); | |
689 | ||
690 | mutex_lock(&i40e_client_instance_mutex); | |
691 | list_for_each_entry_safe(cdev, tmp, &i40e_client_instances, list) { | |
692 | if (strncmp(cdev->client->name, client->name, | |
693 | I40E_CLIENT_STR_LENGTH)) | |
694 | continue; | |
682d11d7 | 695 | pf = (struct i40e_pf *)cdev->lan_info.pf; |
e3219ce6 ASJ |
696 | if (test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { |
697 | if (atomic_read(&cdev->ref_cnt) > 0) { | |
698 | ret = I40E_ERR_NOT_READY; | |
699 | goto out; | |
700 | } | |
e3219ce6 ASJ |
701 | if (client->ops && client->ops->close) |
702 | client->ops->close(&cdev->lan_info, client, | |
703 | false); | |
704 | i40e_client_release_qvlist(&cdev->lan_info); | |
705 | clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); | |
706 | ||
707 | dev_warn(&pf->pdev->dev, | |
708 | "Client %s instance for PF id %d closed\n", | |
709 | client->name, pf->hw.pf_id); | |
710 | } | |
711 | /* delete the client instance from the list */ | |
eb27163b | 712 | list_move(&cdev->list, &cdevs_tmp); |
e3219ce6 ASJ |
713 | atomic_dec(&client->ref_cnt); |
714 | dev_info(&pf->pdev->dev, "Deleted client instance of Client %s\n", | |
715 | client->name); | |
716 | } | |
717 | out: | |
718 | mutex_unlock(&i40e_client_instance_mutex); | |
719 | ||
720 | /* free the client device and release its vsi */ | |
721 | list_for_each_entry_safe(cdev, tmp, &cdevs_tmp, list) { | |
722 | kfree(cdev); | |
723 | } | |
724 | return ret; | |
725 | } | |
726 | ||
727 | /** | |
728 | * i40e_client_prepare - prepare client specific resources | |
729 | * @client: pointer to the registered client | |
730 | * | |
731 | * Return 0 on success or < 0 on error | |
732 | **/ | |
733 | static int i40e_client_prepare(struct i40e_client *client) | |
734 | { | |
735 | struct i40e_device *ldev; | |
736 | struct i40e_pf *pf; | |
737 | int ret = 0; | |
738 | ||
739 | mutex_lock(&i40e_device_mutex); | |
740 | list_for_each_entry(ldev, &i40e_devices, list) { | |
741 | pf = ldev->pf; | |
742 | /* Start the client subtask */ | |
743 | pf->flags |= I40E_FLAG_SERVICE_CLIENT_REQUESTED; | |
744 | i40e_service_event_schedule(pf); | |
745 | } | |
746 | mutex_unlock(&i40e_device_mutex); | |
747 | return ret; | |
748 | } | |
749 | ||
750 | /** | |
751 | * i40e_client_virtchnl_send - TBD | |
752 | * @ldev: pointer to L2 context | |
753 | * @client: Client pointer | |
754 | * @vf_id: absolute VF identifier | |
755 | * @msg: message buffer | |
756 | * @len: length of message buffer | |
757 | * | |
758 | * Return 0 on success or < 0 on error | |
759 | **/ | |
760 | static int i40e_client_virtchnl_send(struct i40e_info *ldev, | |
761 | struct i40e_client *client, | |
762 | u32 vf_id, u8 *msg, u16 len) | |
763 | { | |
764 | struct i40e_pf *pf = ldev->pf; | |
765 | struct i40e_hw *hw = &pf->hw; | |
766 | i40e_status err; | |
767 | ||
768 | err = i40e_aq_send_msg_to_vf(hw, vf_id, I40E_VIRTCHNL_OP_IWARP, | |
769 | 0, msg, len, NULL); | |
770 | if (err) | |
771 | dev_err(&pf->pdev->dev, "Unable to send iWarp message to VF, error %d, aq status %d\n", | |
772 | err, hw->aq.asq_last_status); | |
773 | ||
774 | return err; | |
775 | } | |
776 | ||
777 | /** | |
778 | * i40e_client_setup_qvlist | |
779 | * @ldev: pointer to L2 context. | |
780 | * @client: Client pointer. | |
781 | * @qv_info: queue and vector list | |
782 | * | |
783 | * Return 0 on success or < 0 on error | |
784 | **/ | |
785 | static int i40e_client_setup_qvlist(struct i40e_info *ldev, | |
786 | struct i40e_client *client, | |
787 | struct i40e_qvlist_info *qvlist_info) | |
788 | { | |
789 | struct i40e_pf *pf = ldev->pf; | |
790 | struct i40e_hw *hw = &pf->hw; | |
791 | struct i40e_qv_info *qv_info; | |
792 | u32 v_idx, i, reg_idx, reg; | |
793 | u32 size; | |
794 | ||
795 | size = sizeof(struct i40e_qvlist_info) + | |
796 | (sizeof(struct i40e_qv_info) * (qvlist_info->num_vectors - 1)); | |
797 | ldev->qvlist_info = kzalloc(size, GFP_KERNEL); | |
798 | ldev->qvlist_info->num_vectors = qvlist_info->num_vectors; | |
799 | ||
800 | for (i = 0; i < qvlist_info->num_vectors; i++) { | |
801 | qv_info = &qvlist_info->qv_info[i]; | |
802 | if (!qv_info) | |
803 | continue; | |
804 | v_idx = qv_info->v_idx; | |
805 | ||
806 | /* Validate vector id belongs to this client */ | |
807 | if ((v_idx >= (pf->iwarp_base_vector + pf->num_iwarp_msix)) || | |
808 | (v_idx < pf->iwarp_base_vector)) | |
809 | goto err; | |
810 | ||
811 | ldev->qvlist_info->qv_info[i] = *qv_info; | |
812 | reg_idx = I40E_PFINT_LNKLSTN(v_idx - 1); | |
813 | ||
814 | if (qv_info->ceq_idx == I40E_QUEUE_INVALID_IDX) { | |
815 | /* Special case - No CEQ mapped on this vector */ | |
816 | wr32(hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); | |
817 | } else { | |
818 | reg = (qv_info->ceq_idx & | |
819 | I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) | | |
820 | (I40E_QUEUE_TYPE_PE_CEQ << | |
821 | I40E_PFINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); | |
822 | wr32(hw, reg_idx, reg); | |
823 | ||
824 | reg = (I40E_PFINT_CEQCTL_CAUSE_ENA_MASK | | |
825 | (v_idx << I40E_PFINT_CEQCTL_MSIX_INDX_SHIFT) | | |
826 | (qv_info->itr_idx << | |
827 | I40E_PFINT_CEQCTL_ITR_INDX_SHIFT) | | |
828 | (I40E_QUEUE_END_OF_LIST << | |
829 | I40E_PFINT_CEQCTL_NEXTQ_INDX_SHIFT)); | |
830 | wr32(hw, I40E_PFINT_CEQCTL(qv_info->ceq_idx), reg); | |
831 | } | |
832 | if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { | |
833 | reg = (I40E_PFINT_AEQCTL_CAUSE_ENA_MASK | | |
834 | (v_idx << I40E_PFINT_AEQCTL_MSIX_INDX_SHIFT) | | |
835 | (qv_info->itr_idx << | |
836 | I40E_PFINT_AEQCTL_ITR_INDX_SHIFT)); | |
837 | ||
838 | wr32(hw, I40E_PFINT_AEQCTL, reg); | |
839 | } | |
840 | } | |
70df973b AD |
841 | /* Mitigate sync problems with iwarp VF driver */ |
842 | i40e_flush(hw); | |
e3219ce6 ASJ |
843 | return 0; |
844 | err: | |
845 | kfree(ldev->qvlist_info); | |
846 | ldev->qvlist_info = NULL; | |
847 | return -EINVAL; | |
848 | } | |
849 | ||
850 | /** | |
851 | * i40e_client_request_reset | |
852 | * @ldev: pointer to L2 context. | |
853 | * @client: Client pointer. | |
854 | * @level: reset level | |
855 | **/ | |
856 | static void i40e_client_request_reset(struct i40e_info *ldev, | |
857 | struct i40e_client *client, | |
858 | u32 reset_level) | |
859 | { | |
860 | struct i40e_pf *pf = ldev->pf; | |
861 | ||
862 | switch (reset_level) { | |
863 | case I40E_CLIENT_RESET_LEVEL_PF: | |
864 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
865 | break; | |
866 | case I40E_CLIENT_RESET_LEVEL_CORE: | |
867 | set_bit(__I40E_PF_RESET_REQUESTED, &pf->state); | |
868 | break; | |
869 | default: | |
870 | dev_warn(&pf->pdev->dev, | |
871 | "Client %s instance for PF id %d request an unsupported reset: %d.\n", | |
872 | client->name, pf->hw.pf_id, reset_level); | |
873 | break; | |
874 | } | |
875 | ||
876 | i40e_service_event_schedule(pf); | |
877 | } | |
878 | ||
879 | /** | |
880 | * i40e_client_update_vsi_ctxt | |
881 | * @ldev: pointer to L2 context. | |
882 | * @client: Client pointer. | |
883 | * @is_vf: if this for the VF | |
884 | * @vf_id: if is_vf true this carries the vf_id | |
885 | * @flag: Any device level setting that needs to be done for PE | |
886 | * @valid_flag: Bits in this match up and enable changing of flag bits | |
887 | * | |
888 | * Return 0 on success or < 0 on error | |
889 | **/ | |
890 | static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, | |
891 | struct i40e_client *client, | |
892 | bool is_vf, u32 vf_id, | |
893 | u32 flag, u32 valid_flag) | |
894 | { | |
895 | struct i40e_pf *pf = ldev->pf; | |
896 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
897 | struct i40e_vsi_context ctxt; | |
898 | bool update = true; | |
899 | i40e_status err; | |
900 | ||
901 | /* TODO: for now do not allow setting VF's VSI setting */ | |
902 | if (is_vf) | |
903 | return -EINVAL; | |
904 | ||
905 | ctxt.seid = pf->main_vsi_seid; | |
906 | ctxt.pf_num = pf->hw.pf_id; | |
907 | err = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); | |
908 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; | |
909 | if (err) { | |
910 | dev_info(&pf->pdev->dev, | |
911 | "couldn't get PF vsi config, err %s aq_err %s\n", | |
912 | i40e_stat_str(&pf->hw, err), | |
913 | i40e_aq_str(&pf->hw, | |
914 | pf->hw.aq.asq_last_status)); | |
915 | return -ENOENT; | |
916 | } | |
917 | ||
918 | if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE) && | |
919 | (flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE)) { | |
920 | ctxt.info.valid_sections = | |
921 | cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); | |
922 | ctxt.info.queueing_opt_flags |= I40E_AQ_VSI_QUE_OPT_TCP_ENA; | |
923 | } else if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE) && | |
924 | !(flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE)) { | |
925 | ctxt.info.valid_sections = | |
926 | cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); | |
927 | ctxt.info.queueing_opt_flags &= ~I40E_AQ_VSI_QUE_OPT_TCP_ENA; | |
928 | } else { | |
929 | update = false; | |
930 | dev_warn(&pf->pdev->dev, | |
931 | "Client %s instance for PF id %d request an unsupported Config: %x.\n", | |
932 | client->name, pf->hw.pf_id, flag); | |
933 | } | |
934 | ||
935 | if (update) { | |
936 | err = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); | |
937 | if (err) { | |
938 | dev_info(&pf->pdev->dev, | |
939 | "update VSI ctxt for PE failed, err %s aq_err %s\n", | |
940 | i40e_stat_str(&pf->hw, err), | |
941 | i40e_aq_str(&pf->hw, | |
942 | pf->hw.aq.asq_last_status)); | |
943 | } | |
944 | } | |
945 | return err; | |
946 | } | |
947 | ||
948 | /** | |
949 | * i40e_register_client - Register a i40e client driver with the L2 driver | |
950 | * @client: pointer to the i40e_client struct | |
951 | * | |
952 | * Returns 0 on success or non-0 on error | |
953 | **/ | |
954 | int i40e_register_client(struct i40e_client *client) | |
955 | { | |
956 | int ret = 0; | |
957 | enum i40e_vsi_type vsi_type; | |
958 | ||
959 | if (!client) { | |
960 | ret = -EIO; | |
961 | goto out; | |
962 | } | |
963 | ||
964 | if (strlen(client->name) == 0) { | |
965 | pr_info("i40e: Failed to register client with no name\n"); | |
966 | ret = -EIO; | |
967 | goto out; | |
968 | } | |
969 | ||
970 | mutex_lock(&i40e_client_mutex); | |
971 | if (i40e_client_is_registered(client)) { | |
972 | pr_info("i40e: Client %s has already been registered!\n", | |
973 | client->name); | |
974 | mutex_unlock(&i40e_client_mutex); | |
975 | ret = -EEXIST; | |
976 | goto out; | |
977 | } | |
978 | ||
979 | if ((client->version.major != I40E_CLIENT_VERSION_MAJOR) || | |
980 | (client->version.minor != I40E_CLIENT_VERSION_MINOR)) { | |
981 | pr_info("i40e: Failed to register client %s due to mismatched client interface version\n", | |
982 | client->name); | |
983 | pr_info("Client is using version: %02d.%02d.%02d while LAN driver supports %s\n", | |
984 | client->version.major, client->version.minor, | |
985 | client->version.build, | |
986 | i40e_client_interface_version_str); | |
987 | mutex_unlock(&i40e_client_mutex); | |
988 | ret = -EIO; | |
989 | goto out; | |
990 | } | |
991 | ||
992 | vsi_type = i40e_client_type_to_vsi_type(client->type); | |
993 | if (vsi_type == I40E_VSI_TYPE_UNKNOWN) { | |
994 | pr_info("i40e: Failed to register client %s due to unknown client type %d\n", | |
995 | client->name, client->type); | |
996 | mutex_unlock(&i40e_client_mutex); | |
997 | ret = -EIO; | |
998 | goto out; | |
999 | } | |
1000 | list_add(&client->list, &i40e_clients); | |
1001 | set_bit(__I40E_CLIENT_REGISTERED, &client->state); | |
1002 | mutex_unlock(&i40e_client_mutex); | |
1003 | ||
1004 | if (i40e_client_prepare(client)) { | |
1005 | ret = -EIO; | |
1006 | goto out; | |
1007 | } | |
1008 | ||
1009 | pr_info("i40e: Registered client %s with return code %d\n", | |
1010 | client->name, ret); | |
1011 | out: | |
1012 | return ret; | |
1013 | } | |
1014 | EXPORT_SYMBOL(i40e_register_client); | |
1015 | ||
1016 | /** | |
1017 | * i40e_unregister_client - Unregister a i40e client driver with the L2 driver | |
1018 | * @client: pointer to the i40e_client struct | |
1019 | * | |
1020 | * Returns 0 on success or non-0 on error | |
1021 | **/ | |
1022 | int i40e_unregister_client(struct i40e_client *client) | |
1023 | { | |
1024 | int ret = 0; | |
1025 | ||
1026 | /* When a unregister request comes through we would have to send | |
1027 | * a close for each of the client instances that were opened. | |
1028 | * client_release function is called to handle this. | |
1029 | */ | |
cd3be169 | 1030 | mutex_lock(&i40e_client_mutex); |
e3219ce6 ASJ |
1031 | if (!client || i40e_client_release(client)) { |
1032 | ret = -EIO; | |
1033 | goto out; | |
1034 | } | |
1035 | ||
1036 | /* TODO: check if device is in reset, or if that matters? */ | |
e3219ce6 ASJ |
1037 | if (!i40e_client_is_registered(client)) { |
1038 | pr_info("i40e: Client %s has not been registered\n", | |
1039 | client->name); | |
e3219ce6 ASJ |
1040 | ret = -ENODEV; |
1041 | goto out; | |
1042 | } | |
1043 | if (atomic_read(&client->ref_cnt) == 0) { | |
1044 | clear_bit(__I40E_CLIENT_REGISTERED, &client->state); | |
1045 | list_del(&client->list); | |
1046 | pr_info("i40e: Unregistered client %s with return code %d\n", | |
1047 | client->name, ret); | |
1048 | } else { | |
1049 | ret = I40E_ERR_NOT_READY; | |
1050 | pr_err("i40e: Client %s failed unregister - client has open instances\n", | |
1051 | client->name); | |
1052 | } | |
1053 | ||
e3219ce6 | 1054 | out: |
cd3be169 | 1055 | mutex_unlock(&i40e_client_mutex); |
e3219ce6 ASJ |
1056 | return ret; |
1057 | } | |
1058 | EXPORT_SYMBOL(i40e_unregister_client); |