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ae06c70b | 1 | // SPDX-License-Identifier: GPL-2.0 |
51dce24b | 2 | /* Copyright(c) 2013 - 2018 Intel Corporation. */ |
e3219ce6 ASJ |
3 | |
4 | #include <linux/list.h> | |
5 | #include <linux/errno.h> | |
6 | ||
7 | #include "i40e.h" | |
8 | #include "i40e_prototype.h" | |
9 | #include "i40e_client.h" | |
10 | ||
11 | static const char i40e_client_interface_version_str[] = I40E_CLIENT_VERSION_STR; | |
0ef2d5af | 12 | static struct i40e_client *registered_client; |
e3219ce6 ASJ |
13 | static LIST_HEAD(i40e_devices); |
14 | static DEFINE_MUTEX(i40e_device_mutex); | |
15 | ||
e3219ce6 ASJ |
16 | static int i40e_client_virtchnl_send(struct i40e_info *ldev, |
17 | struct i40e_client *client, | |
18 | u32 vf_id, u8 *msg, u16 len); | |
19 | ||
20 | static int i40e_client_setup_qvlist(struct i40e_info *ldev, | |
21 | struct i40e_client *client, | |
22 | struct i40e_qvlist_info *qvlist_info); | |
23 | ||
24 | static void i40e_client_request_reset(struct i40e_info *ldev, | |
25 | struct i40e_client *client, | |
26 | u32 reset_level); | |
27 | ||
28 | static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, | |
29 | struct i40e_client *client, | |
30 | bool is_vf, u32 vf_id, | |
31 | u32 flag, u32 valid_flag); | |
32 | ||
33 | static struct i40e_ops i40e_lan_ops = { | |
34 | .virtchnl_send = i40e_client_virtchnl_send, | |
35 | .setup_qvlist = i40e_client_setup_qvlist, | |
36 | .request_reset = i40e_client_request_reset, | |
37 | .update_vsi_ctxt = i40e_client_update_vsi_ctxt, | |
38 | }; | |
39 | ||
e3219ce6 ASJ |
40 | /** |
41 | * i40e_client_get_params - Get the params that can change at runtime | |
42 | * @vsi: the VSI with the message | |
f5254429 | 43 | * @params: client param struct |
e3219ce6 ASJ |
44 | * |
45 | **/ | |
46 | static | |
47 | int i40e_client_get_params(struct i40e_vsi *vsi, struct i40e_params *params) | |
48 | { | |
49 | struct i40e_dcbx_config *dcb_cfg = &vsi->back->hw.local_dcbx_config; | |
50 | int i = 0; | |
51 | ||
52 | for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { | |
53 | u8 tc = dcb_cfg->etscfg.prioritytable[i]; | |
54 | u16 qs_handle; | |
55 | ||
56 | /* If TC is not enabled for VSI use TC0 for UP */ | |
57 | if (!(vsi->tc_config.enabled_tc & BIT(tc))) | |
58 | tc = 0; | |
59 | ||
60 | qs_handle = le16_to_cpu(vsi->info.qs_handle[tc]); | |
61 | params->qos.prio_qos[i].tc = tc; | |
62 | params->qos.prio_qos[i].qs_handle = qs_handle; | |
63 | if (qs_handle == I40E_AQ_VSI_QS_HANDLE_INVALID) { | |
64 | dev_err(&vsi->back->pdev->dev, "Invalid queue set handle for TC = %d, vsi id = %d\n", | |
65 | tc, vsi->id); | |
66 | return -EINVAL; | |
67 | } | |
68 | } | |
69 | ||
70 | params->mtu = vsi->netdev->mtu; | |
71 | return 0; | |
72 | } | |
73 | ||
74 | /** | |
75 | * i40e_notify_client_of_vf_msg - call the client vf message callback | |
76 | * @vsi: the VSI with the message | |
77 | * @vf_id: the absolute VF id that sent the message | |
78 | * @msg: message buffer | |
79 | * @len: length of the message | |
80 | * | |
81 | * If there is a client to this VSI, call the client | |
82 | **/ | |
83 | void | |
84 | i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id, u8 *msg, u16 len) | |
85 | { | |
0ef2d5af MW |
86 | struct i40e_pf *pf = vsi->back; |
87 | struct i40e_client_instance *cdev = pf->cinst; | |
e3219ce6 | 88 | |
0ef2d5af MW |
89 | if (!cdev || !cdev->client) |
90 | return; | |
91 | if (!cdev->client->ops || !cdev->client->ops->virtchnl_receive) { | |
92 | dev_dbg(&pf->pdev->dev, | |
93 | "Cannot locate client instance virtual channel receive routine\n"); | |
94 | return; | |
95 | } | |
96 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { | |
97 | dev_dbg(&pf->pdev->dev, "Client is not open, abort virtchnl_receive\n"); | |
e3219ce6 | 98 | return; |
e3219ce6 | 99 | } |
0ef2d5af MW |
100 | cdev->client->ops->virtchnl_receive(&cdev->lan_info, cdev->client, |
101 | vf_id, msg, len); | |
e3219ce6 ASJ |
102 | } |
103 | ||
104 | /** | |
105 | * i40e_notify_client_of_l2_param_changes - call the client notify callback | |
106 | * @vsi: the VSI with l2 param changes | |
107 | * | |
108 | * If there is a client to this VSI, call the client | |
109 | **/ | |
110 | void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi) | |
111 | { | |
0ef2d5af MW |
112 | struct i40e_pf *pf = vsi->back; |
113 | struct i40e_client_instance *cdev = pf->cinst; | |
e3219ce6 ASJ |
114 | struct i40e_params params; |
115 | ||
0ef2d5af MW |
116 | if (!cdev || !cdev->client) |
117 | return; | |
118 | if (!cdev->client->ops || !cdev->client->ops->l2_param_change) { | |
119 | dev_dbg(&vsi->back->pdev->dev, | |
120 | "Cannot locate client instance l2_param_change routine\n"); | |
121 | return; | |
122 | } | |
123 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { | |
124 | dev_dbg(&vsi->back->pdev->dev, "Client is not open, abort l2 param change\n"); | |
e3219ce6 | 125 | return; |
e3219ce6 | 126 | } |
7be147dc JK |
127 | memset(¶ms, 0, sizeof(params)); |
128 | i40e_client_get_params(vsi, ¶ms); | |
0ef2d5af MW |
129 | memcpy(&cdev->lan_info.params, ¶ms, sizeof(struct i40e_params)); |
130 | cdev->client->ops->l2_param_change(&cdev->lan_info, cdev->client, | |
131 | ¶ms); | |
e3219ce6 ASJ |
132 | } |
133 | ||
e3219ce6 | 134 | /** |
0ef2d5af | 135 | * i40e_client_release_qvlist - release MSI-X vector mapping for client |
e3219ce6 ASJ |
136 | * @ldev: pointer to L2 context. |
137 | * | |
138 | **/ | |
139 | static void i40e_client_release_qvlist(struct i40e_info *ldev) | |
140 | { | |
141 | struct i40e_qvlist_info *qvlist_info = ldev->qvlist_info; | |
142 | u32 i; | |
143 | ||
144 | if (!ldev->qvlist_info) | |
145 | return; | |
146 | ||
147 | for (i = 0; i < qvlist_info->num_vectors; i++) { | |
148 | struct i40e_pf *pf = ldev->pf; | |
149 | struct i40e_qv_info *qv_info; | |
150 | u32 reg_idx; | |
151 | ||
152 | qv_info = &qvlist_info->qv_info[i]; | |
153 | if (!qv_info) | |
154 | continue; | |
155 | reg_idx = I40E_PFINT_LNKLSTN(qv_info->v_idx - 1); | |
156 | wr32(&pf->hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); | |
157 | } | |
158 | kfree(ldev->qvlist_info); | |
159 | ldev->qvlist_info = NULL; | |
160 | } | |
161 | ||
162 | /** | |
163 | * i40e_notify_client_of_netdev_close - call the client close callback | |
164 | * @vsi: the VSI with netdev closed | |
165 | * @reset: true when close called due to a reset pending | |
166 | * | |
167 | * If there is a client to this netdev, call the client with close | |
168 | **/ | |
169 | void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset) | |
170 | { | |
0ef2d5af MW |
171 | struct i40e_pf *pf = vsi->back; |
172 | struct i40e_client_instance *cdev = pf->cinst; | |
e3219ce6 | 173 | |
0ef2d5af MW |
174 | if (!cdev || !cdev->client) |
175 | return; | |
176 | if (!cdev->client->ops || !cdev->client->ops->close) { | |
177 | dev_dbg(&vsi->back->pdev->dev, | |
178 | "Cannot locate client instance close routine\n"); | |
e3219ce6 | 179 | return; |
e3219ce6 | 180 | } |
0ef2d5af MW |
181 | cdev->client->ops->close(&cdev->lan_info, cdev->client, reset); |
182 | clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); | |
183 | i40e_client_release_qvlist(&cdev->lan_info); | |
e3219ce6 ASJ |
184 | } |
185 | ||
186 | /** | |
187 | * i40e_notify_client_of_vf_reset - call the client vf reset callback | |
188 | * @pf: PF device pointer | |
189 | * @vf_id: asolute id of VF being reset | |
190 | * | |
191 | * If there is a client attached to this PF, notify when a VF is reset | |
192 | **/ | |
193 | void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id) | |
194 | { | |
0ef2d5af | 195 | struct i40e_client_instance *cdev = pf->cinst; |
e3219ce6 | 196 | |
0ef2d5af MW |
197 | if (!cdev || !cdev->client) |
198 | return; | |
199 | if (!cdev->client->ops || !cdev->client->ops->vf_reset) { | |
200 | dev_dbg(&pf->pdev->dev, | |
201 | "Cannot locate client instance VF reset routine\n"); | |
202 | return; | |
203 | } | |
204 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { | |
205 | dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-reset\n"); | |
e3219ce6 | 206 | return; |
e3219ce6 | 207 | } |
0ef2d5af | 208 | cdev->client->ops->vf_reset(&cdev->lan_info, cdev->client, vf_id); |
e3219ce6 ASJ |
209 | } |
210 | ||
211 | /** | |
212 | * i40e_notify_client_of_vf_enable - call the client vf notification callback | |
213 | * @pf: PF device pointer | |
214 | * @num_vfs: the number of VFs currently enabled, 0 for disable | |
215 | * | |
216 | * If there is a client attached to this PF, call its VF notification routine | |
217 | **/ | |
218 | void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs) | |
219 | { | |
0ef2d5af | 220 | struct i40e_client_instance *cdev = pf->cinst; |
e3219ce6 | 221 | |
0ef2d5af MW |
222 | if (!cdev || !cdev->client) |
223 | return; | |
224 | if (!cdev->client->ops || !cdev->client->ops->vf_enable) { | |
225 | dev_dbg(&pf->pdev->dev, | |
226 | "Cannot locate client instance VF enable routine\n"); | |
227 | return; | |
228 | } | |
229 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, | |
230 | &cdev->state)) { | |
231 | dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-enable\n"); | |
e3219ce6 | 232 | return; |
e3219ce6 | 233 | } |
0ef2d5af | 234 | cdev->client->ops->vf_enable(&cdev->lan_info, cdev->client, num_vfs); |
e3219ce6 ASJ |
235 | } |
236 | ||
237 | /** | |
238 | * i40e_vf_client_capable - ask the client if it likes the specified VF | |
239 | * @pf: PF device pointer | |
240 | * @vf_id: the VF in question | |
241 | * | |
242 | * If there is a client of the specified type attached to this PF, call | |
243 | * its vf_capable routine | |
244 | **/ | |
0ef2d5af | 245 | int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id) |
e3219ce6 | 246 | { |
0ef2d5af | 247 | struct i40e_client_instance *cdev = pf->cinst; |
e3219ce6 ASJ |
248 | int capable = false; |
249 | ||
0ef2d5af MW |
250 | if (!cdev || !cdev->client) |
251 | goto out; | |
252 | if (!cdev->client->ops || !cdev->client->ops->vf_capable) { | |
59e331e3 JK |
253 | dev_dbg(&pf->pdev->dev, |
254 | "Cannot locate client instance VF capability routine\n"); | |
0ef2d5af | 255 | goto out; |
e3219ce6 | 256 | } |
0ef2d5af MW |
257 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) |
258 | goto out; | |
259 | ||
260 | capable = cdev->client->ops->vf_capable(&cdev->lan_info, | |
261 | cdev->client, | |
262 | vf_id); | |
263 | out: | |
e3219ce6 ASJ |
264 | return capable; |
265 | } | |
266 | ||
ddbb8d5d SS |
267 | void i40e_client_update_msix_info(struct i40e_pf *pf) |
268 | { | |
269 | struct i40e_client_instance *cdev = pf->cinst; | |
270 | ||
271 | if (!cdev || !cdev->client) | |
272 | return; | |
273 | ||
274 | cdev->lan_info.msix_count = pf->num_iwarp_msix; | |
275 | cdev->lan_info.msix_entries = &pf->msix_entries[pf->iwarp_base_vector]; | |
276 | } | |
277 | ||
e3219ce6 ASJ |
278 | /** |
279 | * i40e_client_add_instance - add a client instance struct to the instance list | |
280 | * @pf: pointer to the board struct | |
281 | * @client: pointer to a client struct in the client list. | |
f38ff2ee | 282 | * @existing: if there was already an existing instance |
e3219ce6 | 283 | * |
e3219ce6 | 284 | **/ |
0ef2d5af | 285 | static void i40e_client_add_instance(struct i40e_pf *pf) |
e3219ce6 | 286 | { |
0ef2d5af | 287 | struct i40e_client_instance *cdev = NULL; |
e3219ce6 ASJ |
288 | struct netdev_hw_addr *mac = NULL; |
289 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
290 | ||
0ef2d5af MW |
291 | if (!registered_client || pf->cinst) |
292 | return; | |
293 | ||
e3219ce6 ASJ |
294 | cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); |
295 | if (!cdev) | |
0ef2d5af | 296 | return; |
e3219ce6 ASJ |
297 | |
298 | cdev->lan_info.pf = (void *)pf; | |
299 | cdev->lan_info.netdev = vsi->netdev; | |
300 | cdev->lan_info.pcidev = pf->pdev; | |
301 | cdev->lan_info.fid = pf->hw.pf_id; | |
302 | cdev->lan_info.ftype = I40E_CLIENT_FTYPE_PF; | |
303 | cdev->lan_info.hw_addr = pf->hw.hw_addr; | |
304 | cdev->lan_info.ops = &i40e_lan_ops; | |
305 | cdev->lan_info.version.major = I40E_CLIENT_VERSION_MAJOR; | |
306 | cdev->lan_info.version.minor = I40E_CLIENT_VERSION_MINOR; | |
307 | cdev->lan_info.version.build = I40E_CLIENT_VERSION_BUILD; | |
308 | cdev->lan_info.fw_maj_ver = pf->hw.aq.fw_maj_ver; | |
309 | cdev->lan_info.fw_min_ver = pf->hw.aq.fw_min_ver; | |
310 | cdev->lan_info.fw_build = pf->hw.aq.fw_build; | |
311 | set_bit(__I40E_CLIENT_INSTANCE_NONE, &cdev->state); | |
312 | ||
313 | if (i40e_client_get_params(vsi, &cdev->lan_info.params)) { | |
314 | kfree(cdev); | |
315 | cdev = NULL; | |
0ef2d5af | 316 | return; |
e3219ce6 ASJ |
317 | } |
318 | ||
e3219ce6 ASJ |
319 | mac = list_first_entry(&cdev->lan_info.netdev->dev_addrs.list, |
320 | struct netdev_hw_addr, list); | |
321 | if (mac) | |
322 | ether_addr_copy(cdev->lan_info.lanmac, mac->addr); | |
323 | else | |
324 | dev_err(&pf->pdev->dev, "MAC address list is empty!\n"); | |
325 | ||
0ef2d5af MW |
326 | cdev->client = registered_client; |
327 | pf->cinst = cdev; | |
ddbb8d5d SS |
328 | |
329 | i40e_client_update_msix_info(pf); | |
e3219ce6 ASJ |
330 | } |
331 | ||
332 | /** | |
333 | * i40e_client_del_instance - removes a client instance from the list | |
334 | * @pf: pointer to the board struct | |
335 | * | |
e3219ce6 ASJ |
336 | **/ |
337 | static | |
0ef2d5af | 338 | void i40e_client_del_instance(struct i40e_pf *pf) |
e3219ce6 | 339 | { |
0ef2d5af MW |
340 | kfree(pf->cinst); |
341 | pf->cinst = NULL; | |
e3219ce6 ASJ |
342 | } |
343 | ||
344 | /** | |
345 | * i40e_client_subtask - client maintenance work | |
346 | * @pf: board private structure | |
347 | **/ | |
348 | void i40e_client_subtask(struct i40e_pf *pf) | |
349 | { | |
0ef2d5af | 350 | struct i40e_client *client = registered_client; |
e3219ce6 | 351 | struct i40e_client_instance *cdev; |
0ef2d5af | 352 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
e3219ce6 ASJ |
353 | int ret = 0; |
354 | ||
5f76a704 | 355 | if (!test_and_clear_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state)) |
e3219ce6 | 356 | return; |
0ef2d5af | 357 | cdev = pf->cinst; |
e3219ce6 ASJ |
358 | |
359 | /* If we're down or resetting, just bail */ | |
0da36b97 JK |
360 | if (test_bit(__I40E_DOWN, pf->state) || |
361 | test_bit(__I40E_CONFIG_BUSY, pf->state)) | |
e3219ce6 ASJ |
362 | return; |
363 | ||
0ef2d5af MW |
364 | if (!client || !cdev) |
365 | return; | |
7be96322 | 366 | |
7b0b1a6d SS |
367 | /* Here we handle client opens. If the client is down, and |
368 | * the netdev is registered, then open the client. | |
0ef2d5af MW |
369 | */ |
370 | if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { | |
7b0b1a6d | 371 | if (vsi->netdev_registered && |
0ef2d5af MW |
372 | client->ops && client->ops->open) { |
373 | set_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); | |
374 | ret = client->ops->open(&cdev->lan_info, client); | |
375 | if (ret) { | |
376 | /* Remove failed client instance */ | |
377 | clear_bit(__I40E_CLIENT_INSTANCE_OPENED, | |
378 | &cdev->state); | |
379 | i40e_client_del_instance(pf); | |
c73d2e84 | 380 | } |
e3219ce6 ASJ |
381 | } |
382 | } | |
7b0b1a6d SS |
383 | |
384 | /* enable/disable PE TCP_ENA flag based on netdev down/up | |
385 | */ | |
386 | if (test_bit(__I40E_VSI_DOWN, vsi->state)) | |
387 | i40e_client_update_vsi_ctxt(&cdev->lan_info, client, | |
388 | 0, 0, 0, | |
389 | I40E_CLIENT_VSI_FLAG_TCP_ENABLE); | |
390 | else | |
391 | i40e_client_update_vsi_ctxt(&cdev->lan_info, client, | |
392 | 0, 0, | |
393 | I40E_CLIENT_VSI_FLAG_TCP_ENABLE, | |
394 | I40E_CLIENT_VSI_FLAG_TCP_ENABLE); | |
e3219ce6 ASJ |
395 | } |
396 | ||
397 | /** | |
398 | * i40e_lan_add_device - add a lan device struct to the list of lan devices | |
399 | * @pf: pointer to the board struct | |
400 | * | |
401 | * Returns 0 on success or none 0 on error | |
402 | **/ | |
403 | int i40e_lan_add_device(struct i40e_pf *pf) | |
404 | { | |
405 | struct i40e_device *ldev; | |
406 | int ret = 0; | |
407 | ||
408 | mutex_lock(&i40e_device_mutex); | |
409 | list_for_each_entry(ldev, &i40e_devices, list) { | |
410 | if (ldev->pf == pf) { | |
411 | ret = -EEXIST; | |
412 | goto out; | |
413 | } | |
414 | } | |
415 | ldev = kzalloc(sizeof(*ldev), GFP_KERNEL); | |
416 | if (!ldev) { | |
417 | ret = -ENOMEM; | |
418 | goto out; | |
419 | } | |
420 | ldev->pf = pf; | |
421 | INIT_LIST_HEAD(&ldev->list); | |
422 | list_add(&ldev->list, &i40e_devices); | |
b3f028fc SM |
423 | dev_info(&pf->pdev->dev, "Added LAN device PF%d bus=0x%02x dev=0x%02x func=0x%02x\n", |
424 | pf->hw.pf_id, pf->hw.bus.bus_id, | |
425 | pf->hw.bus.device, pf->hw.bus.func); | |
e3219ce6 | 426 | |
8090f618 MW |
427 | /* If a client has already been registered, we need to add an instance |
428 | * of it to our new LAN device. | |
429 | */ | |
430 | if (registered_client) | |
431 | i40e_client_add_instance(pf); | |
432 | ||
e3219ce6 | 433 | /* Since in some cases register may have happened before a device gets |
f38ff2ee ASJ |
434 | * added, we can schedule a subtask to go initiate the clients if |
435 | * they can be launched at probe time. | |
e3219ce6 | 436 | */ |
5f76a704 | 437 | set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state); |
e3219ce6 ASJ |
438 | i40e_service_event_schedule(pf); |
439 | ||
440 | out: | |
441 | mutex_unlock(&i40e_device_mutex); | |
442 | return ret; | |
443 | } | |
444 | ||
445 | /** | |
446 | * i40e_lan_del_device - removes a lan device from the device list | |
447 | * @pf: pointer to the board struct | |
448 | * | |
449 | * Returns 0 on success or non-0 on error | |
450 | **/ | |
451 | int i40e_lan_del_device(struct i40e_pf *pf) | |
452 | { | |
453 | struct i40e_device *ldev, *tmp; | |
454 | int ret = -ENODEV; | |
455 | ||
295c0a55 MW |
456 | /* First, remove any client instance. */ |
457 | i40e_client_del_instance(pf); | |
458 | ||
e3219ce6 ASJ |
459 | mutex_lock(&i40e_device_mutex); |
460 | list_for_each_entry_safe(ldev, tmp, &i40e_devices, list) { | |
461 | if (ldev->pf == pf) { | |
b3f028fc SM |
462 | dev_info(&pf->pdev->dev, "Deleted LAN device PF%d bus=0x%02x dev=0x%02x func=0x%02x\n", |
463 | pf->hw.pf_id, pf->hw.bus.bus_id, | |
464 | pf->hw.bus.device, pf->hw.bus.func); | |
e3219ce6 ASJ |
465 | list_del(&ldev->list); |
466 | kfree(ldev); | |
467 | ret = 0; | |
468 | break; | |
469 | } | |
470 | } | |
e3219ce6 ASJ |
471 | mutex_unlock(&i40e_device_mutex); |
472 | return ret; | |
473 | } | |
474 | ||
475 | /** | |
476 | * i40e_client_release - release client specific resources | |
477 | * @client: pointer to the registered client | |
478 | * | |
e3219ce6 | 479 | **/ |
0ef2d5af | 480 | static void i40e_client_release(struct i40e_client *client) |
e3219ce6 | 481 | { |
0ef2d5af MW |
482 | struct i40e_client_instance *cdev; |
483 | struct i40e_device *ldev; | |
682d11d7 | 484 | struct i40e_pf *pf; |
e3219ce6 | 485 | |
0ef2d5af MW |
486 | mutex_lock(&i40e_device_mutex); |
487 | list_for_each_entry(ldev, &i40e_devices, list) { | |
488 | pf = ldev->pf; | |
489 | cdev = pf->cinst; | |
490 | if (!cdev) | |
e3219ce6 | 491 | continue; |
0ef2d5af MW |
492 | |
493 | while (test_and_set_bit(__I40E_SERVICE_SCHED, | |
0da36b97 | 494 | pf->state)) |
0ef2d5af MW |
495 | usleep_range(500, 1000); |
496 | ||
e3219ce6 | 497 | if (test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { |
e3219ce6 ASJ |
498 | if (client->ops && client->ops->close) |
499 | client->ops->close(&cdev->lan_info, client, | |
500 | false); | |
501 | i40e_client_release_qvlist(&cdev->lan_info); | |
502 | clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); | |
503 | ||
504 | dev_warn(&pf->pdev->dev, | |
505 | "Client %s instance for PF id %d closed\n", | |
506 | client->name, pf->hw.pf_id); | |
507 | } | |
0ef2d5af MW |
508 | /* delete the client instance */ |
509 | i40e_client_del_instance(pf); | |
e3219ce6 ASJ |
510 | dev_info(&pf->pdev->dev, "Deleted client instance of Client %s\n", |
511 | client->name); | |
0da36b97 | 512 | clear_bit(__I40E_SERVICE_SCHED, pf->state); |
e3219ce6 | 513 | } |
0ef2d5af | 514 | mutex_unlock(&i40e_device_mutex); |
e3219ce6 ASJ |
515 | } |
516 | ||
517 | /** | |
518 | * i40e_client_prepare - prepare client specific resources | |
519 | * @client: pointer to the registered client | |
520 | * | |
e3219ce6 | 521 | **/ |
3bb83baf | 522 | static void i40e_client_prepare(struct i40e_client *client) |
e3219ce6 ASJ |
523 | { |
524 | struct i40e_device *ldev; | |
525 | struct i40e_pf *pf; | |
e3219ce6 ASJ |
526 | |
527 | mutex_lock(&i40e_device_mutex); | |
528 | list_for_each_entry(ldev, &i40e_devices, list) { | |
529 | pf = ldev->pf; | |
0ef2d5af | 530 | i40e_client_add_instance(pf); |
e3219ce6 | 531 | /* Start the client subtask */ |
5f76a704 | 532 | set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state); |
e3219ce6 ASJ |
533 | i40e_service_event_schedule(pf); |
534 | } | |
535 | mutex_unlock(&i40e_device_mutex); | |
e3219ce6 ASJ |
536 | } |
537 | ||
538 | /** | |
539 | * i40e_client_virtchnl_send - TBD | |
540 | * @ldev: pointer to L2 context | |
541 | * @client: Client pointer | |
542 | * @vf_id: absolute VF identifier | |
543 | * @msg: message buffer | |
544 | * @len: length of message buffer | |
545 | * | |
546 | * Return 0 on success or < 0 on error | |
547 | **/ | |
548 | static int i40e_client_virtchnl_send(struct i40e_info *ldev, | |
549 | struct i40e_client *client, | |
550 | u32 vf_id, u8 *msg, u16 len) | |
551 | { | |
552 | struct i40e_pf *pf = ldev->pf; | |
553 | struct i40e_hw *hw = &pf->hw; | |
554 | i40e_status err; | |
555 | ||
310a2ad9 | 556 | err = i40e_aq_send_msg_to_vf(hw, vf_id, VIRTCHNL_OP_IWARP, |
e3219ce6 ASJ |
557 | 0, msg, len, NULL); |
558 | if (err) | |
559 | dev_err(&pf->pdev->dev, "Unable to send iWarp message to VF, error %d, aq status %d\n", | |
560 | err, hw->aq.asq_last_status); | |
561 | ||
562 | return err; | |
563 | } | |
564 | ||
565 | /** | |
566 | * i40e_client_setup_qvlist | |
567 | * @ldev: pointer to L2 context. | |
568 | * @client: Client pointer. | |
f5254429 | 569 | * @qvlist_info: queue and vector list |
e3219ce6 ASJ |
570 | * |
571 | * Return 0 on success or < 0 on error | |
572 | **/ | |
573 | static int i40e_client_setup_qvlist(struct i40e_info *ldev, | |
574 | struct i40e_client *client, | |
575 | struct i40e_qvlist_info *qvlist_info) | |
576 | { | |
577 | struct i40e_pf *pf = ldev->pf; | |
578 | struct i40e_hw *hw = &pf->hw; | |
579 | struct i40e_qv_info *qv_info; | |
580 | u32 v_idx, i, reg_idx, reg; | |
e3219ce6 | 581 | |
825f0a4e GS |
582 | ldev->qvlist_info = kzalloc(struct_size(ldev->qvlist_info, qv_info, |
583 | qvlist_info->num_vectors - 1), GFP_KERNEL); | |
0a4ecc2c CJ |
584 | if (!ldev->qvlist_info) |
585 | return -ENOMEM; | |
e3219ce6 ASJ |
586 | ldev->qvlist_info->num_vectors = qvlist_info->num_vectors; |
587 | ||
588 | for (i = 0; i < qvlist_info->num_vectors; i++) { | |
589 | qv_info = &qvlist_info->qv_info[i]; | |
590 | if (!qv_info) | |
591 | continue; | |
592 | v_idx = qv_info->v_idx; | |
593 | ||
594 | /* Validate vector id belongs to this client */ | |
595 | if ((v_idx >= (pf->iwarp_base_vector + pf->num_iwarp_msix)) || | |
596 | (v_idx < pf->iwarp_base_vector)) | |
597 | goto err; | |
598 | ||
599 | ldev->qvlist_info->qv_info[i] = *qv_info; | |
600 | reg_idx = I40E_PFINT_LNKLSTN(v_idx - 1); | |
601 | ||
602 | if (qv_info->ceq_idx == I40E_QUEUE_INVALID_IDX) { | |
603 | /* Special case - No CEQ mapped on this vector */ | |
604 | wr32(hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); | |
605 | } else { | |
606 | reg = (qv_info->ceq_idx & | |
607 | I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) | | |
608 | (I40E_QUEUE_TYPE_PE_CEQ << | |
609 | I40E_PFINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); | |
610 | wr32(hw, reg_idx, reg); | |
611 | ||
612 | reg = (I40E_PFINT_CEQCTL_CAUSE_ENA_MASK | | |
613 | (v_idx << I40E_PFINT_CEQCTL_MSIX_INDX_SHIFT) | | |
614 | (qv_info->itr_idx << | |
615 | I40E_PFINT_CEQCTL_ITR_INDX_SHIFT) | | |
616 | (I40E_QUEUE_END_OF_LIST << | |
617 | I40E_PFINT_CEQCTL_NEXTQ_INDX_SHIFT)); | |
618 | wr32(hw, I40E_PFINT_CEQCTL(qv_info->ceq_idx), reg); | |
619 | } | |
620 | if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { | |
621 | reg = (I40E_PFINT_AEQCTL_CAUSE_ENA_MASK | | |
622 | (v_idx << I40E_PFINT_AEQCTL_MSIX_INDX_SHIFT) | | |
623 | (qv_info->itr_idx << | |
624 | I40E_PFINT_AEQCTL_ITR_INDX_SHIFT)); | |
625 | ||
626 | wr32(hw, I40E_PFINT_AEQCTL, reg); | |
627 | } | |
628 | } | |
70df973b AD |
629 | /* Mitigate sync problems with iwarp VF driver */ |
630 | i40e_flush(hw); | |
e3219ce6 ASJ |
631 | return 0; |
632 | err: | |
633 | kfree(ldev->qvlist_info); | |
634 | ldev->qvlist_info = NULL; | |
635 | return -EINVAL; | |
636 | } | |
637 | ||
638 | /** | |
639 | * i40e_client_request_reset | |
640 | * @ldev: pointer to L2 context. | |
641 | * @client: Client pointer. | |
f5254429 | 642 | * @reset_level: reset level |
e3219ce6 ASJ |
643 | **/ |
644 | static void i40e_client_request_reset(struct i40e_info *ldev, | |
645 | struct i40e_client *client, | |
646 | u32 reset_level) | |
647 | { | |
648 | struct i40e_pf *pf = ldev->pf; | |
649 | ||
650 | switch (reset_level) { | |
651 | case I40E_CLIENT_RESET_LEVEL_PF: | |
0da36b97 | 652 | set_bit(__I40E_PF_RESET_REQUESTED, pf->state); |
e3219ce6 ASJ |
653 | break; |
654 | case I40E_CLIENT_RESET_LEVEL_CORE: | |
0da36b97 | 655 | set_bit(__I40E_PF_RESET_REQUESTED, pf->state); |
e3219ce6 ASJ |
656 | break; |
657 | default: | |
658 | dev_warn(&pf->pdev->dev, | |
0ef2d5af MW |
659 | "Client for PF id %d requested an unsupported reset: %d.\n", |
660 | pf->hw.pf_id, reset_level); | |
e3219ce6 ASJ |
661 | break; |
662 | } | |
663 | ||
664 | i40e_service_event_schedule(pf); | |
665 | } | |
666 | ||
667 | /** | |
668 | * i40e_client_update_vsi_ctxt | |
669 | * @ldev: pointer to L2 context. | |
670 | * @client: Client pointer. | |
671 | * @is_vf: if this for the VF | |
672 | * @vf_id: if is_vf true this carries the vf_id | |
673 | * @flag: Any device level setting that needs to be done for PE | |
674 | * @valid_flag: Bits in this match up and enable changing of flag bits | |
675 | * | |
676 | * Return 0 on success or < 0 on error | |
677 | **/ | |
678 | static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, | |
679 | struct i40e_client *client, | |
680 | bool is_vf, u32 vf_id, | |
681 | u32 flag, u32 valid_flag) | |
682 | { | |
683 | struct i40e_pf *pf = ldev->pf; | |
684 | struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; | |
685 | struct i40e_vsi_context ctxt; | |
686 | bool update = true; | |
687 | i40e_status err; | |
688 | ||
689 | /* TODO: for now do not allow setting VF's VSI setting */ | |
690 | if (is_vf) | |
691 | return -EINVAL; | |
692 | ||
693 | ctxt.seid = pf->main_vsi_seid; | |
694 | ctxt.pf_num = pf->hw.pf_id; | |
695 | err = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); | |
696 | ctxt.flags = I40E_AQ_VSI_TYPE_PF; | |
697 | if (err) { | |
698 | dev_info(&pf->pdev->dev, | |
699 | "couldn't get PF vsi config, err %s aq_err %s\n", | |
700 | i40e_stat_str(&pf->hw, err), | |
701 | i40e_aq_str(&pf->hw, | |
702 | pf->hw.aq.asq_last_status)); | |
703 | return -ENOENT; | |
704 | } | |
705 | ||
7b0b1a6d SS |
706 | if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE) && |
707 | (flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE)) { | |
e3219ce6 ASJ |
708 | ctxt.info.valid_sections = |
709 | cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); | |
710 | ctxt.info.queueing_opt_flags |= I40E_AQ_VSI_QUE_OPT_TCP_ENA; | |
7b0b1a6d SS |
711 | } else if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE) && |
712 | !(flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE)) { | |
e3219ce6 ASJ |
713 | ctxt.info.valid_sections = |
714 | cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); | |
715 | ctxt.info.queueing_opt_flags &= ~I40E_AQ_VSI_QUE_OPT_TCP_ENA; | |
716 | } else { | |
717 | update = false; | |
718 | dev_warn(&pf->pdev->dev, | |
0ef2d5af MW |
719 | "Client for PF id %d request an unsupported Config: %x.\n", |
720 | pf->hw.pf_id, flag); | |
e3219ce6 ASJ |
721 | } |
722 | ||
723 | if (update) { | |
724 | err = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); | |
725 | if (err) { | |
726 | dev_info(&pf->pdev->dev, | |
727 | "update VSI ctxt for PE failed, err %s aq_err %s\n", | |
728 | i40e_stat_str(&pf->hw, err), | |
729 | i40e_aq_str(&pf->hw, | |
730 | pf->hw.aq.asq_last_status)); | |
731 | } | |
732 | } | |
733 | return err; | |
734 | } | |
735 | ||
736 | /** | |
737 | * i40e_register_client - Register a i40e client driver with the L2 driver | |
738 | * @client: pointer to the i40e_client struct | |
739 | * | |
740 | * Returns 0 on success or non-0 on error | |
741 | **/ | |
742 | int i40e_register_client(struct i40e_client *client) | |
743 | { | |
744 | int ret = 0; | |
e3219ce6 ASJ |
745 | |
746 | if (!client) { | |
747 | ret = -EIO; | |
748 | goto out; | |
749 | } | |
750 | ||
751 | if (strlen(client->name) == 0) { | |
752 | pr_info("i40e: Failed to register client with no name\n"); | |
753 | ret = -EIO; | |
754 | goto out; | |
755 | } | |
756 | ||
0ef2d5af | 757 | if (registered_client) { |
e3219ce6 ASJ |
758 | pr_info("i40e: Client %s has already been registered!\n", |
759 | client->name); | |
e3219ce6 ASJ |
760 | ret = -EEXIST; |
761 | goto out; | |
762 | } | |
763 | ||
764 | if ((client->version.major != I40E_CLIENT_VERSION_MAJOR) || | |
765 | (client->version.minor != I40E_CLIENT_VERSION_MINOR)) { | |
766 | pr_info("i40e: Failed to register client %s due to mismatched client interface version\n", | |
767 | client->name); | |
768 | pr_info("Client is using version: %02d.%02d.%02d while LAN driver supports %s\n", | |
769 | client->version.major, client->version.minor, | |
770 | client->version.build, | |
771 | i40e_client_interface_version_str); | |
e3219ce6 ASJ |
772 | ret = -EIO; |
773 | goto out; | |
774 | } | |
775 | ||
0ef2d5af | 776 | registered_client = client; |
e3219ce6 | 777 | |
3bb83baf | 778 | i40e_client_prepare(client); |
e3219ce6 | 779 | |
3bb83baf | 780 | pr_info("i40e: Registered client %s\n", client->name); |
e3219ce6 ASJ |
781 | out: |
782 | return ret; | |
783 | } | |
784 | EXPORT_SYMBOL(i40e_register_client); | |
785 | ||
786 | /** | |
787 | * i40e_unregister_client - Unregister a i40e client driver with the L2 driver | |
788 | * @client: pointer to the i40e_client struct | |
789 | * | |
790 | * Returns 0 on success or non-0 on error | |
791 | **/ | |
792 | int i40e_unregister_client(struct i40e_client *client) | |
793 | { | |
794 | int ret = 0; | |
795 | ||
0ef2d5af | 796 | if (registered_client != client) { |
e3219ce6 ASJ |
797 | pr_info("i40e: Client %s has not been registered\n", |
798 | client->name); | |
e3219ce6 ASJ |
799 | ret = -ENODEV; |
800 | goto out; | |
801 | } | |
0ef2d5af MW |
802 | registered_client = NULL; |
803 | /* When a unregister request comes through we would have to send | |
804 | * a close for each of the client instances that were opened. | |
805 | * client_release function is called to handle this. | |
806 | */ | |
807 | i40e_client_release(client); | |
808 | ||
809 | pr_info("i40e: Unregistered client %s\n", client->name); | |
e3219ce6 ASJ |
810 | out: |
811 | return ret; | |
812 | } | |
813 | EXPORT_SYMBOL(i40e_unregister_client); |