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62683ab5 GR |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver | |
ef8693eb | 4 | * Copyright(c) 2013 - 2014 Intel Corporation. |
62683ab5 GR |
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 | * The full GNU General Public License is included in this distribution in | |
16 | * the file called "COPYING". | |
17 | * | |
18 | * Contact Information: | |
19 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
20 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
21 | * | |
22 | ******************************************************************************/ | |
23 | ||
24 | #include "i40evf.h" | |
25 | #include "i40e_prototype.h" | |
26 | ||
27 | /* busy wait delay in msec */ | |
28 | #define I40EVF_BUSY_WAIT_DELAY 10 | |
29 | #define I40EVF_BUSY_WAIT_COUNT 50 | |
30 | ||
31 | /** | |
32 | * i40evf_send_pf_msg | |
33 | * @adapter: adapter structure | |
34 | * @op: virtual channel opcode | |
35 | * @msg: pointer to message buffer | |
36 | * @len: message length | |
37 | * | |
38 | * Send message to PF and print status if failure. | |
39 | **/ | |
40 | static int i40evf_send_pf_msg(struct i40evf_adapter *adapter, | |
41 | enum i40e_virtchnl_ops op, u8 *msg, u16 len) | |
42 | { | |
43 | struct i40e_hw *hw = &adapter->hw; | |
44 | i40e_status err; | |
45 | ||
ef8693eb MW |
46 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) |
47 | return 0; /* nothing to see here, move along */ | |
48 | ||
62683ab5 GR |
49 | err = i40e_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL); |
50 | if (err) | |
51 | dev_err(&adapter->pdev->dev, "Unable to send opcode %d to PF, error %d, aq status %d\n", | |
52 | op, err, hw->aq.asq_last_status); | |
53 | return err; | |
54 | } | |
55 | ||
56 | /** | |
57 | * i40evf_send_api_ver | |
58 | * @adapter: adapter structure | |
59 | * | |
60 | * Send API version admin queue message to the PF. The reply is not checked | |
61 | * in this function. Returns 0 if the message was successfully | |
62 | * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not. | |
63 | **/ | |
64 | int i40evf_send_api_ver(struct i40evf_adapter *adapter) | |
65 | { | |
66 | struct i40e_virtchnl_version_info vvi; | |
67 | ||
68 | vvi.major = I40E_VIRTCHNL_VERSION_MAJOR; | |
69 | vvi.minor = I40E_VIRTCHNL_VERSION_MINOR; | |
70 | ||
71 | return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi, | |
72 | sizeof(vvi)); | |
73 | } | |
74 | ||
75 | /** | |
76 | * i40evf_verify_api_ver | |
77 | * @adapter: adapter structure | |
78 | * | |
79 | * Compare API versions with the PF. Must be called after admin queue is | |
80 | * initialized. Returns 0 if API versions match, -EIO if | |
81 | * they do not, or I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty. | |
82 | **/ | |
83 | int i40evf_verify_api_ver(struct i40evf_adapter *adapter) | |
84 | { | |
85 | struct i40e_virtchnl_version_info *pf_vvi; | |
86 | struct i40e_hw *hw = &adapter->hw; | |
87 | struct i40e_arq_event_info event; | |
88 | i40e_status err; | |
89 | ||
90 | event.msg_size = I40EVF_MAX_AQ_BUF_SIZE; | |
91 | event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL); | |
92 | if (!event.msg_buf) { | |
93 | err = -ENOMEM; | |
94 | goto out; | |
95 | } | |
96 | ||
97 | err = i40evf_clean_arq_element(hw, &event, NULL); | |
98 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) | |
99 | goto out_alloc; | |
100 | ||
101 | err = (i40e_status)le32_to_cpu(event.desc.cookie_low); | |
102 | if (err) { | |
103 | err = -EIO; | |
104 | goto out_alloc; | |
105 | } | |
106 | ||
107 | if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) != | |
108 | I40E_VIRTCHNL_OP_VERSION) { | |
109 | err = -EIO; | |
110 | goto out_alloc; | |
111 | } | |
112 | ||
113 | pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf; | |
114 | if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) || | |
115 | (pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR)) | |
116 | err = -EIO; | |
117 | ||
118 | out_alloc: | |
119 | kfree(event.msg_buf); | |
120 | out: | |
121 | return err; | |
122 | } | |
123 | ||
124 | /** | |
125 | * i40evf_send_vf_config_msg | |
126 | * @adapter: adapter structure | |
127 | * | |
128 | * Send VF configuration request admin queue message to the PF. The reply | |
129 | * is not checked in this function. Returns 0 if the message was | |
130 | * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not. | |
131 | **/ | |
132 | int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter) | |
133 | { | |
134 | return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, | |
135 | NULL, 0); | |
136 | } | |
137 | ||
138 | /** | |
139 | * i40evf_get_vf_config | |
140 | * @hw: pointer to the hardware structure | |
141 | * @len: length of buffer | |
142 | * | |
143 | * Get VF configuration from PF and populate hw structure. Must be called after | |
144 | * admin queue is initialized. Busy waits until response is received from PF, | |
145 | * with maximum timeout. Response from PF is returned in the buffer for further | |
146 | * processing by the caller. | |
147 | **/ | |
148 | int i40evf_get_vf_config(struct i40evf_adapter *adapter) | |
149 | { | |
150 | struct i40e_hw *hw = &adapter->hw; | |
151 | struct i40e_arq_event_info event; | |
152 | u16 len; | |
153 | i40e_status err; | |
154 | ||
155 | len = sizeof(struct i40e_virtchnl_vf_resource) + | |
156 | I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource); | |
157 | event.msg_size = len; | |
158 | event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL); | |
159 | if (!event.msg_buf) { | |
160 | err = -ENOMEM; | |
161 | goto out; | |
162 | } | |
163 | ||
164 | err = i40evf_clean_arq_element(hw, &event, NULL); | |
165 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) | |
166 | goto out_alloc; | |
167 | ||
168 | err = (i40e_status)le32_to_cpu(event.desc.cookie_low); | |
169 | if (err) { | |
170 | dev_err(&adapter->pdev->dev, | |
171 | "%s: Error returned from PF, %d, %d\n", __func__, | |
172 | le32_to_cpu(event.desc.cookie_high), | |
173 | le32_to_cpu(event.desc.cookie_low)); | |
174 | err = -EIO; | |
175 | goto out_alloc; | |
176 | } | |
177 | ||
178 | if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) != | |
179 | I40E_VIRTCHNL_OP_GET_VF_RESOURCES) { | |
180 | dev_err(&adapter->pdev->dev, | |
181 | "%s: Invalid response from PF, %d, %d\n", __func__, | |
182 | le32_to_cpu(event.desc.cookie_high), | |
183 | le32_to_cpu(event.desc.cookie_low)); | |
184 | err = -EIO; | |
185 | goto out_alloc; | |
186 | } | |
187 | memcpy(adapter->vf_res, event.msg_buf, min(event.msg_size, len)); | |
188 | ||
189 | i40e_vf_parse_hw_config(hw, adapter->vf_res); | |
190 | out_alloc: | |
191 | kfree(event.msg_buf); | |
192 | out: | |
193 | return err; | |
194 | } | |
195 | ||
196 | /** | |
197 | * i40evf_configure_queues | |
198 | * @adapter: adapter structure | |
199 | * | |
200 | * Request that the PF set up our (previously allocated) queues. | |
201 | **/ | |
202 | void i40evf_configure_queues(struct i40evf_adapter *adapter) | |
203 | { | |
204 | struct i40e_virtchnl_vsi_queue_config_info *vqci; | |
205 | struct i40e_virtchnl_queue_pair_info *vqpi; | |
206 | int pairs = adapter->vsi_res->num_queue_pairs; | |
207 | int i, len; | |
208 | ||
209 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
210 | /* bail because we already have a command pending */ | |
211 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
212 | __func__, adapter->current_op); | |
213 | return; | |
214 | } | |
215 | adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES; | |
216 | len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) + | |
217 | (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs); | |
218 | vqci = kzalloc(len, GFP_ATOMIC); | |
219 | if (!vqci) { | |
220 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
221 | __func__); | |
222 | return; | |
223 | } | |
224 | vqci->vsi_id = adapter->vsi_res->vsi_id; | |
225 | vqci->num_queue_pairs = pairs; | |
226 | vqpi = vqci->qpair; | |
227 | /* Size check is not needed here - HW max is 16 queue pairs, and we | |
228 | * can fit info for 31 of them into the AQ buffer before it overflows. | |
229 | */ | |
230 | for (i = 0; i < pairs; i++) { | |
231 | vqpi->txq.vsi_id = vqci->vsi_id; | |
232 | vqpi->txq.queue_id = i; | |
233 | vqpi->txq.ring_len = adapter->tx_rings[i]->count; | |
234 | vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma; | |
235 | ||
236 | vqpi->rxq.vsi_id = vqci->vsi_id; | |
237 | vqpi->rxq.queue_id = i; | |
238 | vqpi->rxq.ring_len = adapter->rx_rings[i]->count; | |
239 | vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma; | |
240 | vqpi->rxq.max_pkt_size = adapter->netdev->mtu | |
241 | + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN; | |
242 | vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len; | |
243 | vqpi++; | |
244 | } | |
245 | ||
246 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, | |
247 | (u8 *)vqci, len); | |
248 | kfree(vqci); | |
249 | adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES; | |
250 | adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES; | |
251 | } | |
252 | ||
253 | /** | |
254 | * i40evf_enable_queues | |
255 | * @adapter: adapter structure | |
256 | * | |
257 | * Request that the PF enable all of our queues. | |
258 | **/ | |
259 | void i40evf_enable_queues(struct i40evf_adapter *adapter) | |
260 | { | |
261 | struct i40e_virtchnl_queue_select vqs; | |
262 | ||
263 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
264 | /* bail because we already have a command pending */ | |
265 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
266 | __func__, adapter->current_op); | |
267 | return; | |
268 | } | |
269 | adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES; | |
270 | vqs.vsi_id = adapter->vsi_res->vsi_id; | |
271 | vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1; | |
272 | vqs.rx_queues = vqs.tx_queues; | |
273 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES, | |
274 | (u8 *)&vqs, sizeof(vqs)); | |
275 | adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES; | |
276 | adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES; | |
277 | } | |
278 | ||
279 | /** | |
280 | * i40evf_disable_queues | |
281 | * @adapter: adapter structure | |
282 | * | |
283 | * Request that the PF disable all of our queues. | |
284 | **/ | |
285 | void i40evf_disable_queues(struct i40evf_adapter *adapter) | |
286 | { | |
287 | struct i40e_virtchnl_queue_select vqs; | |
288 | ||
289 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
290 | /* bail because we already have a command pending */ | |
291 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
292 | __func__, adapter->current_op); | |
293 | return; | |
294 | } | |
295 | adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES; | |
296 | vqs.vsi_id = adapter->vsi_res->vsi_id; | |
297 | vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1; | |
298 | vqs.rx_queues = vqs.tx_queues; | |
299 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES, | |
300 | (u8 *)&vqs, sizeof(vqs)); | |
301 | adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES; | |
302 | adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES; | |
303 | } | |
304 | ||
305 | /** | |
306 | * i40evf_map_queues | |
307 | * @adapter: adapter structure | |
308 | * | |
309 | * Request that the PF map queues to interrupt vectors. Misc causes, including | |
310 | * admin queue, are always mapped to vector 0. | |
311 | **/ | |
312 | void i40evf_map_queues(struct i40evf_adapter *adapter) | |
313 | { | |
314 | struct i40e_virtchnl_irq_map_info *vimi; | |
315 | int v_idx, q_vectors, len; | |
316 | struct i40e_q_vector *q_vector; | |
317 | ||
318 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
319 | /* bail because we already have a command pending */ | |
320 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
321 | __func__, adapter->current_op); | |
322 | return; | |
323 | } | |
324 | adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP; | |
325 | ||
326 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
327 | ||
328 | len = sizeof(struct i40e_virtchnl_irq_map_info) + | |
329 | (adapter->num_msix_vectors * | |
330 | sizeof(struct i40e_virtchnl_vector_map)); | |
331 | vimi = kzalloc(len, GFP_ATOMIC); | |
332 | if (!vimi) { | |
333 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
334 | __func__); | |
335 | return; | |
336 | } | |
337 | ||
338 | vimi->num_vectors = adapter->num_msix_vectors; | |
339 | /* Queue vectors first */ | |
340 | for (v_idx = 0; v_idx < q_vectors; v_idx++) { | |
341 | q_vector = adapter->q_vector[v_idx]; | |
342 | vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id; | |
343 | vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS; | |
344 | vimi->vecmap[v_idx].txq_map = q_vector->ring_mask; | |
345 | vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask; | |
346 | } | |
347 | /* Misc vector last - this is only for AdminQ messages */ | |
348 | vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id; | |
349 | vimi->vecmap[v_idx].vector_id = 0; | |
350 | vimi->vecmap[v_idx].txq_map = 0; | |
351 | vimi->vecmap[v_idx].rxq_map = 0; | |
352 | ||
353 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, | |
354 | (u8 *)vimi, len); | |
355 | kfree(vimi); | |
356 | adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS; | |
357 | adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS; | |
358 | } | |
359 | ||
360 | /** | |
361 | * i40evf_add_ether_addrs | |
362 | * @adapter: adapter structure | |
363 | * @addrs: the MAC address filters to add (contiguous) | |
364 | * @count: number of filters | |
365 | * | |
366 | * Request that the PF add one or more addresses to our filters. | |
367 | **/ | |
368 | void i40evf_add_ether_addrs(struct i40evf_adapter *adapter) | |
369 | { | |
370 | struct i40e_virtchnl_ether_addr_list *veal; | |
371 | int len, i = 0, count = 0; | |
372 | struct i40evf_mac_filter *f; | |
373 | ||
374 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
375 | /* bail because we already have a command pending */ | |
376 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
377 | __func__, adapter->current_op); | |
378 | return; | |
379 | } | |
380 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
381 | if (f->add) | |
382 | count++; | |
383 | } | |
384 | if (!count) { | |
385 | adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
386 | return; | |
387 | } | |
388 | adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS; | |
389 | ||
390 | len = sizeof(struct i40e_virtchnl_ether_addr_list) + | |
391 | (count * sizeof(struct i40e_virtchnl_ether_addr)); | |
392 | if (len > I40EVF_MAX_AQ_BUF_SIZE) { | |
393 | dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request.\n", | |
394 | __func__); | |
395 | count = (I40EVF_MAX_AQ_BUF_SIZE - | |
396 | sizeof(struct i40e_virtchnl_ether_addr_list)) / | |
397 | sizeof(struct i40e_virtchnl_ether_addr); | |
398 | len = I40EVF_MAX_AQ_BUF_SIZE; | |
399 | } | |
400 | ||
401 | veal = kzalloc(len, GFP_ATOMIC); | |
402 | if (!veal) { | |
403 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
404 | __func__); | |
405 | return; | |
406 | } | |
407 | veal->vsi_id = adapter->vsi_res->vsi_id; | |
408 | veal->num_elements = count; | |
409 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
410 | if (f->add) { | |
411 | memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN); | |
412 | i++; | |
413 | f->add = false; | |
414 | } | |
415 | } | |
416 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, | |
417 | (u8 *)veal, len); | |
418 | kfree(veal); | |
419 | adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
420 | adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
421 | ||
422 | } | |
423 | ||
424 | /** | |
425 | * i40evf_del_ether_addrs | |
426 | * @adapter: adapter structure | |
427 | * @addrs: the MAC address filters to remove (contiguous) | |
428 | * @count: number of filtes | |
429 | * | |
430 | * Request that the PF remove one or more addresses from our filters. | |
431 | **/ | |
432 | void i40evf_del_ether_addrs(struct i40evf_adapter *adapter) | |
433 | { | |
434 | struct i40e_virtchnl_ether_addr_list *veal; | |
435 | struct i40evf_mac_filter *f, *ftmp; | |
436 | int len, i = 0, count = 0; | |
437 | ||
438 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
439 | /* bail because we already have a command pending */ | |
440 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
441 | __func__, adapter->current_op); | |
442 | return; | |
443 | } | |
444 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
445 | if (f->remove) | |
446 | count++; | |
447 | } | |
448 | if (!count) { | |
449 | adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
450 | return; | |
451 | } | |
452 | adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS; | |
453 | ||
454 | len = sizeof(struct i40e_virtchnl_ether_addr_list) + | |
455 | (count * sizeof(struct i40e_virtchnl_ether_addr)); | |
456 | if (len > I40EVF_MAX_AQ_BUF_SIZE) { | |
457 | dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request.\n", | |
458 | __func__); | |
459 | count = (I40EVF_MAX_AQ_BUF_SIZE - | |
460 | sizeof(struct i40e_virtchnl_ether_addr_list)) / | |
461 | sizeof(struct i40e_virtchnl_ether_addr); | |
462 | len = I40EVF_MAX_AQ_BUF_SIZE; | |
463 | } | |
464 | veal = kzalloc(len, GFP_ATOMIC); | |
465 | if (!veal) { | |
466 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
467 | __func__); | |
468 | return; | |
469 | } | |
470 | veal->vsi_id = adapter->vsi_res->vsi_id; | |
471 | veal->num_elements = count; | |
472 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) { | |
473 | if (f->remove) { | |
474 | memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN); | |
475 | i++; | |
476 | list_del(&f->list); | |
477 | kfree(f); | |
478 | } | |
479 | } | |
480 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, | |
481 | (u8 *)veal, len); | |
482 | kfree(veal); | |
483 | adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
484 | adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
485 | } | |
486 | ||
487 | /** | |
488 | * i40evf_add_vlans | |
489 | * @adapter: adapter structure | |
490 | * @vlans: the VLANs to add | |
491 | * @count: number of VLANs | |
492 | * | |
493 | * Request that the PF add one or more VLAN filters to our VSI. | |
494 | **/ | |
495 | void i40evf_add_vlans(struct i40evf_adapter *adapter) | |
496 | { | |
497 | struct i40e_virtchnl_vlan_filter_list *vvfl; | |
498 | int len, i = 0, count = 0; | |
499 | struct i40evf_vlan_filter *f; | |
500 | ||
501 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
502 | /* bail because we already have a command pending */ | |
503 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
504 | __func__, adapter->current_op); | |
505 | return; | |
506 | } | |
507 | ||
508 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
509 | if (f->add) | |
510 | count++; | |
511 | } | |
512 | if (!count) { | |
513 | adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
514 | return; | |
515 | } | |
516 | adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN; | |
517 | ||
518 | len = sizeof(struct i40e_virtchnl_vlan_filter_list) + | |
519 | (count * sizeof(u16)); | |
520 | if (len > I40EVF_MAX_AQ_BUF_SIZE) { | |
521 | dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request.\n", | |
522 | __func__); | |
523 | count = (I40EVF_MAX_AQ_BUF_SIZE - | |
524 | sizeof(struct i40e_virtchnl_vlan_filter_list)) / | |
525 | sizeof(u16); | |
526 | len = I40EVF_MAX_AQ_BUF_SIZE; | |
527 | } | |
528 | vvfl = kzalloc(len, GFP_ATOMIC); | |
529 | if (!vvfl) { | |
530 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
531 | __func__); | |
532 | return; | |
533 | } | |
534 | vvfl->vsi_id = adapter->vsi_res->vsi_id; | |
535 | vvfl->num_elements = count; | |
536 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
537 | if (f->add) { | |
538 | vvfl->vlan_id[i] = f->vlan; | |
539 | i++; | |
540 | f->add = false; | |
541 | } | |
542 | } | |
543 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len); | |
544 | kfree(vvfl); | |
545 | adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
546 | adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
547 | } | |
548 | ||
549 | /** | |
550 | * i40evf_del_vlans | |
551 | * @adapter: adapter structure | |
552 | * @vlans: the VLANs to remove | |
553 | * @count: number of VLANs | |
554 | * | |
555 | * Request that the PF remove one or more VLAN filters from our VSI. | |
556 | **/ | |
557 | void i40evf_del_vlans(struct i40evf_adapter *adapter) | |
558 | { | |
559 | struct i40e_virtchnl_vlan_filter_list *vvfl; | |
560 | struct i40evf_vlan_filter *f, *ftmp; | |
561 | int len, i = 0, count = 0; | |
562 | ||
563 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
564 | /* bail because we already have a command pending */ | |
565 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
566 | __func__, adapter->current_op); | |
567 | return; | |
568 | } | |
569 | ||
570 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
571 | if (f->remove) | |
572 | count++; | |
573 | } | |
574 | if (!count) { | |
575 | adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER; | |
576 | return; | |
577 | } | |
578 | adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN; | |
579 | ||
580 | len = sizeof(struct i40e_virtchnl_vlan_filter_list) + | |
581 | (count * sizeof(u16)); | |
582 | if (len > I40EVF_MAX_AQ_BUF_SIZE) { | |
583 | dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request.\n", | |
584 | __func__); | |
585 | count = (I40EVF_MAX_AQ_BUF_SIZE - | |
586 | sizeof(struct i40e_virtchnl_vlan_filter_list)) / | |
587 | sizeof(u16); | |
588 | len = I40EVF_MAX_AQ_BUF_SIZE; | |
589 | } | |
590 | vvfl = kzalloc(len, GFP_ATOMIC); | |
591 | if (!vvfl) { | |
592 | dev_err(&adapter->pdev->dev, "%s: unable to allocate memory\n", | |
593 | __func__); | |
594 | return; | |
595 | } | |
596 | vvfl->vsi_id = adapter->vsi_res->vsi_id; | |
597 | vvfl->num_elements = count; | |
598 | list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) { | |
599 | if (f->remove) { | |
600 | vvfl->vlan_id[i] = f->vlan; | |
601 | i++; | |
602 | list_del(&f->list); | |
603 | kfree(f); | |
604 | } | |
605 | } | |
606 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len); | |
607 | kfree(vvfl); | |
608 | adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER; | |
609 | adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER; | |
610 | } | |
611 | ||
612 | /** | |
613 | * i40evf_set_promiscuous | |
614 | * @adapter: adapter structure | |
615 | * @flags: bitmask to control unicast/multicast promiscuous. | |
616 | * | |
617 | * Request that the PF enable promiscuous mode for our VSI. | |
618 | **/ | |
619 | void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags) | |
620 | { | |
621 | struct i40e_virtchnl_promisc_info vpi; | |
622 | ||
623 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
624 | /* bail because we already have a command pending */ | |
625 | dev_err(&adapter->pdev->dev, "%s: command %d pending\n", | |
626 | __func__, adapter->current_op); | |
627 | return; | |
628 | } | |
629 | adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE; | |
630 | vpi.vsi_id = adapter->vsi_res->vsi_id; | |
631 | vpi.flags = flags; | |
632 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, | |
633 | (u8 *)&vpi, sizeof(vpi)); | |
634 | } | |
635 | ||
636 | /** | |
637 | * i40evf_request_stats | |
638 | * @adapter: adapter structure | |
639 | * | |
640 | * Request VSI statistics from PF. | |
641 | **/ | |
642 | void i40evf_request_stats(struct i40evf_adapter *adapter) | |
643 | { | |
644 | struct i40e_virtchnl_queue_select vqs; | |
645 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
646 | /* no error message, this isn't crucial */ | |
647 | return; | |
648 | } | |
649 | adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS; | |
650 | vqs.vsi_id = adapter->vsi_res->vsi_id; | |
651 | /* queue maps are ignored for this message - only the vsi is used */ | |
652 | if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS, | |
653 | (u8 *)&vqs, sizeof(vqs))) | |
654 | /* if the request failed, don't lock out others */ | |
655 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
656 | } | |
625777e3 MW |
657 | /** |
658 | * i40evf_request_reset | |
659 | * @adapter: adapter structure | |
660 | * | |
661 | * Request that the PF reset this VF. No response is expected. | |
662 | **/ | |
663 | void i40evf_request_reset(struct i40evf_adapter *adapter) | |
664 | { | |
665 | /* Don't check CURRENT_OP - this is always higher priority */ | |
666 | i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0); | |
667 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
668 | } | |
62683ab5 GR |
669 | |
670 | /** | |
671 | * i40evf_virtchnl_completion | |
672 | * @adapter: adapter structure | |
673 | * @v_opcode: opcode sent by PF | |
674 | * @v_retval: retval sent by PF | |
675 | * @msg: message sent by PF | |
676 | * @msglen: message length | |
677 | * | |
678 | * Asynchronous completion function for admin queue messages. Rather than busy | |
679 | * wait, we fire off our requests and assume that no errors will be returned. | |
680 | * This function handles the reply messages. | |
681 | **/ | |
682 | void i40evf_virtchnl_completion(struct i40evf_adapter *adapter, | |
683 | enum i40e_virtchnl_ops v_opcode, | |
684 | i40e_status v_retval, | |
685 | u8 *msg, u16 msglen) | |
686 | { | |
687 | struct net_device *netdev = adapter->netdev; | |
688 | ||
689 | if (v_opcode == I40E_VIRTCHNL_OP_EVENT) { | |
690 | struct i40e_virtchnl_pf_event *vpe = | |
691 | (struct i40e_virtchnl_pf_event *)msg; | |
692 | switch (vpe->event) { | |
693 | case I40E_VIRTCHNL_EVENT_LINK_CHANGE: | |
694 | adapter->link_up = | |
695 | vpe->event_data.link_event.link_status; | |
696 | if (adapter->link_up && !netif_carrier_ok(netdev)) { | |
697 | dev_info(&adapter->pdev->dev, "NIC Link is Up\n"); | |
698 | netif_carrier_on(netdev); | |
699 | netif_tx_wake_all_queues(netdev); | |
700 | } else if (!adapter->link_up) { | |
701 | dev_info(&adapter->pdev->dev, "NIC Link is Down\n"); | |
702 | netif_carrier_off(netdev); | |
703 | netif_tx_stop_all_queues(netdev); | |
704 | } | |
705 | break; | |
706 | case I40E_VIRTCHNL_EVENT_RESET_IMPENDING: | |
ef8693eb MW |
707 | dev_info(&adapter->pdev->dev, "PF reset warning received\n"); |
708 | if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) { | |
709 | adapter->flags |= I40EVF_FLAG_RESET_PENDING; | |
710 | dev_info(&adapter->pdev->dev, "Scheduling reset task\n"); | |
711 | schedule_work(&adapter->reset_task); | |
712 | } | |
62683ab5 GR |
713 | break; |
714 | default: | |
715 | dev_err(&adapter->pdev->dev, | |
716 | "%s: Unknown event %d from pf\n", | |
717 | __func__, vpe->event); | |
718 | break; | |
719 | ||
720 | } | |
721 | return; | |
722 | } | |
723 | if (v_opcode != adapter->current_op) { | |
724 | dev_err(&adapter->pdev->dev, "%s: Pending op is %d, received %d.\n", | |
725 | __func__, adapter->current_op, v_opcode); | |
726 | /* We're probably completely screwed at this point, but clear | |
727 | * the current op and try to carry on.... | |
728 | */ | |
729 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
730 | return; | |
731 | } | |
732 | if (v_retval) { | |
733 | dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d!\n", | |
734 | __func__, v_retval, v_opcode); | |
735 | } | |
736 | switch (v_opcode) { | |
737 | case I40E_VIRTCHNL_OP_GET_STATS: { | |
738 | struct i40e_eth_stats *stats = | |
739 | (struct i40e_eth_stats *)msg; | |
740 | adapter->net_stats.rx_packets = stats->rx_unicast + | |
741 | stats->rx_multicast + | |
742 | stats->rx_broadcast; | |
743 | adapter->net_stats.tx_packets = stats->tx_unicast + | |
744 | stats->tx_multicast + | |
745 | stats->tx_broadcast; | |
746 | adapter->net_stats.rx_bytes = stats->rx_bytes; | |
747 | adapter->net_stats.tx_bytes = stats->tx_bytes; | |
748 | adapter->net_stats.rx_errors = stats->rx_errors; | |
749 | adapter->net_stats.tx_errors = stats->tx_errors; | |
750 | adapter->net_stats.rx_dropped = stats->rx_missed; | |
751 | adapter->net_stats.tx_dropped = stats->tx_discards; | |
752 | adapter->current_stats = *stats; | |
753 | } | |
754 | break; | |
755 | case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: | |
756 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER); | |
757 | break; | |
758 | case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: | |
759 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER); | |
760 | break; | |
761 | case I40E_VIRTCHNL_OP_ADD_VLAN: | |
762 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER); | |
763 | break; | |
764 | case I40E_VIRTCHNL_OP_DEL_VLAN: | |
765 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER); | |
766 | break; | |
767 | case I40E_VIRTCHNL_OP_ENABLE_QUEUES: | |
768 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES); | |
769 | /* enable transmits */ | |
770 | i40evf_irq_enable(adapter, true); | |
771 | netif_tx_start_all_queues(adapter->netdev); | |
772 | netif_carrier_on(adapter->netdev); | |
773 | break; | |
774 | case I40E_VIRTCHNL_OP_DISABLE_QUEUES: | |
775 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES); | |
776 | break; | |
777 | case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: | |
778 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES); | |
779 | break; | |
780 | case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: | |
781 | adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS); | |
782 | break; | |
783 | default: | |
784 | dev_warn(&adapter->pdev->dev, "%s: Received unexpected message %d from PF.\n", | |
785 | __func__, v_opcode); | |
786 | break; | |
787 | } /* switch v_opcode */ | |
788 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
789 | } |