1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
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.
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
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/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
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
25 ******************************************************************************/
28 #include "i40e_prototype.h"
30 /* busy wait delay in msec */
31 #define I40EVF_BUSY_WAIT_DELAY 10
32 #define I40EVF_BUSY_WAIT_COUNT 50
36 * @adapter: adapter structure
37 * @op: virtual channel opcode
38 * @msg: pointer to message buffer
39 * @len: message length
41 * Send message to PF and print status if failure.
43 static int i40evf_send_pf_msg(struct i40evf_adapter *adapter,
44 enum i40e_virtchnl_ops op, u8 *msg, u16 len)
46 struct i40e_hw *hw = &adapter->hw;
49 if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED)
50 return 0; /* nothing to see here, move along */
52 err = i40e_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
54 dev_err(&adapter->pdev->dev, "Unable to send opcode %d to PF, err %s, aq_err %s\n",
55 op, i40evf_stat_str(hw, err),
56 i40evf_aq_str(hw, hw->aq.asq_last_status));
62 * @adapter: adapter structure
64 * Send API version admin queue message to the PF. The reply is not checked
65 * in this function. Returns 0 if the message was successfully
66 * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
68 int i40evf_send_api_ver(struct i40evf_adapter *adapter)
70 struct i40e_virtchnl_version_info vvi;
72 vvi.major = I40E_VIRTCHNL_VERSION_MAJOR;
73 vvi.minor = I40E_VIRTCHNL_VERSION_MINOR;
75 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi,
80 * i40evf_verify_api_ver
81 * @adapter: adapter structure
83 * Compare API versions with the PF. Must be called after admin queue is
84 * initialized. Returns 0 if API versions match, -EIO if they do not,
85 * I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
86 * from the firmware are propagated.
88 int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
90 struct i40e_virtchnl_version_info *pf_vvi;
91 struct i40e_hw *hw = &adapter->hw;
92 struct i40e_arq_event_info event;
93 enum i40e_virtchnl_ops op;
96 event.buf_len = I40EVF_MAX_AQ_BUF_SIZE;
97 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
104 err = i40evf_clean_arq_element(hw, &event, NULL);
105 /* When the AQ is empty, i40evf_clean_arq_element will return
106 * nonzero and this loop will terminate.
111 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
112 if (op == I40E_VIRTCHNL_OP_VERSION)
117 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
121 if (op != I40E_VIRTCHNL_OP_VERSION) {
122 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
128 pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
129 adapter->pf_version = *pf_vvi;
131 if ((pf_vvi->major > I40E_VIRTCHNL_VERSION_MAJOR) ||
132 ((pf_vvi->major == I40E_VIRTCHNL_VERSION_MAJOR) &&
133 (pf_vvi->minor > I40E_VIRTCHNL_VERSION_MINOR)))
137 kfree(event.msg_buf);
143 * i40evf_send_vf_config_msg
144 * @adapter: adapter structure
146 * Send VF configuration request admin queue message to the PF. The reply
147 * is not checked in this function. Returns 0 if the message was
148 * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
150 int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
154 adapter->current_op = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
155 adapter->aq_required &= ~I40EVF_FLAG_AQ_GET_CONFIG;
156 caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
157 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ |
158 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
159 I40E_VIRTCHNL_VF_OFFLOAD_VLAN |
160 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
161 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
163 adapter->current_op = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
164 adapter->aq_required &= ~I40EVF_FLAG_AQ_GET_CONFIG;
165 if (PF_IS_V11(adapter))
166 return i40evf_send_pf_msg(adapter,
167 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
168 (u8 *)&caps, sizeof(caps));
170 return i40evf_send_pf_msg(adapter,
171 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
176 * i40evf_get_vf_config
177 * @hw: pointer to the hardware structure
178 * @len: length of buffer
180 * Get VF configuration from PF and populate hw structure. Must be called after
181 * admin queue is initialized. Busy waits until response is received from PF,
182 * with maximum timeout. Response from PF is returned in the buffer for further
183 * processing by the caller.
185 int i40evf_get_vf_config(struct i40evf_adapter *adapter)
187 struct i40e_hw *hw = &adapter->hw;
188 struct i40e_arq_event_info event;
189 enum i40e_virtchnl_ops op;
193 len = sizeof(struct i40e_virtchnl_vf_resource) +
194 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
196 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
197 if (!event.msg_buf) {
203 /* When the AQ is empty, i40evf_clean_arq_element will return
204 * nonzero and this loop will terminate.
206 err = i40evf_clean_arq_element(hw, &event, NULL);
210 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
211 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
215 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
216 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
218 i40e_vf_parse_hw_config(hw, adapter->vf_res);
220 kfree(event.msg_buf);
226 * i40evf_configure_queues
227 * @adapter: adapter structure
229 * Request that the PF set up our (previously allocated) queues.
231 void i40evf_configure_queues(struct i40evf_adapter *adapter)
233 struct i40e_virtchnl_vsi_queue_config_info *vqci;
234 struct i40e_virtchnl_queue_pair_info *vqpi;
235 int pairs = adapter->num_active_queues;
238 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
239 /* bail because we already have a command pending */
240 dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
241 adapter->current_op);
244 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
245 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
246 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
247 vqci = kzalloc(len, GFP_KERNEL);
251 vqci->vsi_id = adapter->vsi_res->vsi_id;
252 vqci->num_queue_pairs = pairs;
254 /* Size check is not needed here - HW max is 16 queue pairs, and we
255 * can fit info for 31 of them into the AQ buffer before it overflows.
257 for (i = 0; i < pairs; i++) {
258 vqpi->txq.vsi_id = vqci->vsi_id;
259 vqpi->txq.queue_id = i;
260 vqpi->txq.ring_len = adapter->tx_rings[i].count;
261 vqpi->txq.dma_ring_addr = adapter->tx_rings[i].dma;
262 vqpi->txq.headwb_enabled = 1;
263 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
264 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
266 vqpi->rxq.vsi_id = vqci->vsi_id;
267 vqpi->rxq.queue_id = i;
268 vqpi->rxq.ring_len = adapter->rx_rings[i].count;
269 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma;
270 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
271 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
272 vqpi->rxq.databuffer_size = adapter->rx_rings[i].rx_buf_len;
276 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
277 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
283 * i40evf_enable_queues
284 * @adapter: adapter structure
286 * Request that the PF enable all of our queues.
288 void i40evf_enable_queues(struct i40evf_adapter *adapter)
290 struct i40e_virtchnl_queue_select vqs;
292 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
293 /* bail because we already have a command pending */
294 dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
295 adapter->current_op);
298 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
299 vqs.vsi_id = adapter->vsi_res->vsi_id;
300 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
301 vqs.rx_queues = vqs.tx_queues;
302 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
303 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
304 (u8 *)&vqs, sizeof(vqs));
308 * i40evf_disable_queues
309 * @adapter: adapter structure
311 * Request that the PF disable all of our queues.
313 void i40evf_disable_queues(struct i40evf_adapter *adapter)
315 struct i40e_virtchnl_queue_select vqs;
317 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
318 /* bail because we already have a command pending */
319 dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
320 adapter->current_op);
323 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
324 vqs.vsi_id = adapter->vsi_res->vsi_id;
325 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
326 vqs.rx_queues = vqs.tx_queues;
327 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
328 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
329 (u8 *)&vqs, sizeof(vqs));
334 * @adapter: adapter structure
336 * Request that the PF map queues to interrupt vectors. Misc causes, including
337 * admin queue, are always mapped to vector 0.
339 void i40evf_map_queues(struct i40evf_adapter *adapter)
341 struct i40e_virtchnl_irq_map_info *vimi;
342 int v_idx, q_vectors, len;
343 struct i40e_q_vector *q_vector;
345 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
346 /* bail because we already have a command pending */
347 dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
348 adapter->current_op);
351 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
353 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
355 len = sizeof(struct i40e_virtchnl_irq_map_info) +
356 (adapter->num_msix_vectors *
357 sizeof(struct i40e_virtchnl_vector_map));
358 vimi = kzalloc(len, GFP_KERNEL);
362 vimi->num_vectors = adapter->num_msix_vectors;
363 /* Queue vectors first */
364 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
365 q_vector = adapter->q_vectors + v_idx;
366 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
367 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
368 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
369 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
371 /* Misc vector last - this is only for AdminQ messages */
372 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
373 vimi->vecmap[v_idx].vector_id = 0;
374 vimi->vecmap[v_idx].txq_map = 0;
375 vimi->vecmap[v_idx].rxq_map = 0;
377 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
378 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
384 * i40evf_add_ether_addrs
385 * @adapter: adapter structure
386 * @addrs: the MAC address filters to add (contiguous)
387 * @count: number of filters
389 * Request that the PF add one or more addresses to our filters.
391 void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
393 struct i40e_virtchnl_ether_addr_list *veal;
394 int len, i = 0, count = 0;
395 struct i40evf_mac_filter *f;
398 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
399 /* bail because we already have a command pending */
400 dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
401 adapter->current_op);
404 list_for_each_entry(f, &adapter->mac_filter_list, list) {
409 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
412 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
414 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
415 (count * sizeof(struct i40e_virtchnl_ether_addr));
416 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
417 dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
418 count = (I40EVF_MAX_AQ_BUF_SIZE -
419 sizeof(struct i40e_virtchnl_ether_addr_list)) /
420 sizeof(struct i40e_virtchnl_ether_addr);
421 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
422 (count * sizeof(struct i40e_virtchnl_ether_addr));
426 veal = kzalloc(len, GFP_KERNEL);
430 veal->vsi_id = adapter->vsi_res->vsi_id;
431 veal->num_elements = count;
432 list_for_each_entry(f, &adapter->mac_filter_list, list) {
434 ether_addr_copy(veal->list[i].addr, f->macaddr);
440 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
441 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
447 * i40evf_del_ether_addrs
448 * @adapter: adapter structure
449 * @addrs: the MAC address filters to remove (contiguous)
450 * @count: number of filtes
452 * Request that the PF remove one or more addresses from our filters.
454 void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
456 struct i40e_virtchnl_ether_addr_list *veal;
457 struct i40evf_mac_filter *f, *ftmp;
458 int len, i = 0, count = 0;
461 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
462 /* bail because we already have a command pending */
463 dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
464 adapter->current_op);
467 list_for_each_entry(f, &adapter->mac_filter_list, list) {
472 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
475 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
477 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
478 (count * sizeof(struct i40e_virtchnl_ether_addr));
479 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
480 dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
481 count = (I40EVF_MAX_AQ_BUF_SIZE -
482 sizeof(struct i40e_virtchnl_ether_addr_list)) /
483 sizeof(struct i40e_virtchnl_ether_addr);
484 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
485 (count * sizeof(struct i40e_virtchnl_ether_addr));
488 veal = kzalloc(len, GFP_KERNEL);
492 veal->vsi_id = adapter->vsi_res->vsi_id;
493 veal->num_elements = count;
494 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
496 ether_addr_copy(veal->list[i].addr, f->macaddr);
503 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
504 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
511 * @adapter: adapter structure
512 * @vlans: the VLANs to add
513 * @count: number of VLANs
515 * Request that the PF add one or more VLAN filters to our VSI.
517 void i40evf_add_vlans(struct i40evf_adapter *adapter)
519 struct i40e_virtchnl_vlan_filter_list *vvfl;
520 int len, i = 0, count = 0;
521 struct i40evf_vlan_filter *f;
524 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
525 /* bail because we already have a command pending */
526 dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
527 adapter->current_op);
531 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
536 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
539 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
541 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
542 (count * sizeof(u16));
543 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
544 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
545 count = (I40EVF_MAX_AQ_BUF_SIZE -
546 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
548 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
549 (count * sizeof(u16));
552 vvfl = kzalloc(len, GFP_KERNEL);
556 vvfl->vsi_id = adapter->vsi_res->vsi_id;
557 vvfl->num_elements = count;
558 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
560 vvfl->vlan_id[i] = f->vlan;
566 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
567 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
573 * @adapter: adapter structure
574 * @vlans: the VLANs to remove
575 * @count: number of VLANs
577 * Request that the PF remove one or more VLAN filters from our VSI.
579 void i40evf_del_vlans(struct i40evf_adapter *adapter)
581 struct i40e_virtchnl_vlan_filter_list *vvfl;
582 struct i40evf_vlan_filter *f, *ftmp;
583 int len, i = 0, count = 0;
586 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
587 /* bail because we already have a command pending */
588 dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
589 adapter->current_op);
593 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
598 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
601 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
603 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
604 (count * sizeof(u16));
605 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
606 dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
607 count = (I40EVF_MAX_AQ_BUF_SIZE -
608 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
610 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
611 (count * sizeof(u16));
614 vvfl = kzalloc(len, GFP_KERNEL);
618 vvfl->vsi_id = adapter->vsi_res->vsi_id;
619 vvfl->num_elements = count;
620 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
622 vvfl->vlan_id[i] = f->vlan;
629 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
630 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
635 * i40evf_set_promiscuous
636 * @adapter: adapter structure
637 * @flags: bitmask to control unicast/multicast promiscuous.
639 * Request that the PF enable promiscuous mode for our VSI.
641 void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
643 struct i40e_virtchnl_promisc_info vpi;
645 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
646 /* bail because we already have a command pending */
647 dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
648 adapter->current_op);
651 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
652 vpi.vsi_id = adapter->vsi_res->vsi_id;
654 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
655 (u8 *)&vpi, sizeof(vpi));
659 * i40evf_request_stats
660 * @adapter: adapter structure
662 * Request VSI statistics from PF.
664 void i40evf_request_stats(struct i40evf_adapter *adapter)
666 struct i40e_virtchnl_queue_select vqs;
668 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
669 /* no error message, this isn't crucial */
672 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
673 vqs.vsi_id = adapter->vsi_res->vsi_id;
674 /* queue maps are ignored for this message - only the vsi is used */
675 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
676 (u8 *)&vqs, sizeof(vqs)))
677 /* if the request failed, don't lock out others */
678 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
681 * i40evf_request_reset
682 * @adapter: adapter structure
684 * Request that the PF reset this VF. No response is expected.
686 void i40evf_request_reset(struct i40evf_adapter *adapter)
688 /* Don't check CURRENT_OP - this is always higher priority */
689 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
690 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
694 * i40evf_virtchnl_completion
695 * @adapter: adapter structure
696 * @v_opcode: opcode sent by PF
697 * @v_retval: retval sent by PF
698 * @msg: message sent by PF
699 * @msglen: message length
701 * Asynchronous completion function for admin queue messages. Rather than busy
702 * wait, we fire off our requests and assume that no errors will be returned.
703 * This function handles the reply messages.
705 void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
706 enum i40e_virtchnl_ops v_opcode,
707 i40e_status v_retval,
710 struct net_device *netdev = adapter->netdev;
712 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
713 struct i40e_virtchnl_pf_event *vpe =
714 (struct i40e_virtchnl_pf_event *)msg;
715 switch (vpe->event) {
716 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
718 vpe->event_data.link_event.link_status;
719 if (adapter->link_up && !netif_carrier_ok(netdev)) {
720 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
721 netif_carrier_on(netdev);
722 netif_tx_wake_all_queues(netdev);
723 } else if (!adapter->link_up) {
724 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
725 netif_carrier_off(netdev);
726 netif_tx_stop_all_queues(netdev);
729 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
730 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
731 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
732 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
733 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
734 schedule_work(&adapter->reset_task);
738 dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
746 case I40E_VIRTCHNL_OP_ADD_VLAN:
747 dev_err(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
748 i40evf_stat_str(&adapter->hw, v_retval));
750 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
751 dev_err(&adapter->pdev->dev, "Failed to add MAC filter, error %s\n",
752 i40evf_stat_str(&adapter->hw, v_retval));
754 case I40E_VIRTCHNL_OP_DEL_VLAN:
755 dev_err(&adapter->pdev->dev, "Failed to delete VLAN filter, error %s\n",
756 i40evf_stat_str(&adapter->hw, v_retval));
758 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
759 dev_err(&adapter->pdev->dev, "Failed to delete MAC filter, error %s\n",
760 i40evf_stat_str(&adapter->hw, v_retval));
763 dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
765 i40evf_stat_str(&adapter->hw, v_retval),
770 case I40E_VIRTCHNL_OP_GET_STATS: {
771 struct i40e_eth_stats *stats =
772 (struct i40e_eth_stats *)msg;
773 adapter->net_stats.rx_packets = stats->rx_unicast +
774 stats->rx_multicast +
776 adapter->net_stats.tx_packets = stats->tx_unicast +
777 stats->tx_multicast +
779 adapter->net_stats.rx_bytes = stats->rx_bytes;
780 adapter->net_stats.tx_bytes = stats->tx_bytes;
781 adapter->net_stats.tx_errors = stats->tx_errors;
782 adapter->net_stats.rx_dropped = stats->rx_discards;
783 adapter->net_stats.tx_dropped = stats->tx_discards;
784 adapter->current_stats = *stats;
787 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: {
788 u16 len = sizeof(struct i40e_virtchnl_vf_resource) +
790 sizeof(struct i40e_virtchnl_vsi_resource);
791 memcpy(adapter->vf_res, msg, min(msglen, len));
792 i40e_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
793 /* restore current mac address */
794 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
795 i40evf_process_config(adapter);
798 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
799 /* enable transmits */
800 i40evf_irq_enable(adapter, true);
801 netif_tx_start_all_queues(adapter->netdev);
802 netif_carrier_on(adapter->netdev);
804 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
805 i40evf_free_all_tx_resources(adapter);
806 i40evf_free_all_rx_resources(adapter);
807 if (adapter->state == __I40EVF_DOWN_PENDING)
808 adapter->state = __I40EVF_DOWN;
810 case I40E_VIRTCHNL_OP_VERSION:
811 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
812 /* Don't display an error if we get these out of sequence.
813 * If the firmware needed to get kicked, we'll get these and
816 if (v_opcode != adapter->current_op)
820 if (v_opcode != adapter->current_op)
821 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
822 adapter->current_op, v_opcode);
824 } /* switch v_opcode */
825 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;