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, error %d, aq status %d\n",
55 op, err, hw->aq.asq_last_status);
61 * @adapter: adapter structure
63 * Send API version admin queue message to the PF. The reply is not checked
64 * in this function. Returns 0 if the message was successfully
65 * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
67 int i40evf_send_api_ver(struct i40evf_adapter *adapter)
69 struct i40e_virtchnl_version_info vvi;
71 vvi.major = I40E_VIRTCHNL_VERSION_MAJOR;
72 vvi.minor = I40E_VIRTCHNL_VERSION_MINOR;
74 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi,
79 * i40evf_verify_api_ver
80 * @adapter: adapter structure
82 * Compare API versions with the PF. Must be called after admin queue is
83 * initialized. Returns 0 if API versions match, -EIO if they do not,
84 * I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
85 * from the firmware are propagated.
87 int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
89 struct i40e_virtchnl_version_info *pf_vvi;
90 struct i40e_hw *hw = &adapter->hw;
91 struct i40e_arq_event_info event;
92 enum i40e_virtchnl_ops op;
95 event.buf_len = I40EVF_MAX_AQ_BUF_SIZE;
96 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
103 err = i40evf_clean_arq_element(hw, &event, NULL);
104 /* When the AQ is empty, i40evf_clean_arq_element will return
105 * nonzero and this loop will terminate.
110 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
111 if (op == I40E_VIRTCHNL_OP_VERSION)
116 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
120 if (op != I40E_VIRTCHNL_OP_VERSION) {
121 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
127 pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
128 if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) ||
129 (pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR))
133 kfree(event.msg_buf);
139 * i40evf_send_vf_config_msg
140 * @adapter: adapter structure
142 * Send VF configuration request admin queue message to the PF. The reply
143 * is not checked in this function. Returns 0 if the message was
144 * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
146 int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
148 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
153 * i40evf_get_vf_config
154 * @hw: pointer to the hardware structure
155 * @len: length of buffer
157 * Get VF configuration from PF and populate hw structure. Must be called after
158 * admin queue is initialized. Busy waits until response is received from PF,
159 * with maximum timeout. Response from PF is returned in the buffer for further
160 * processing by the caller.
162 int i40evf_get_vf_config(struct i40evf_adapter *adapter)
164 struct i40e_hw *hw = &adapter->hw;
165 struct i40e_arq_event_info event;
166 enum i40e_virtchnl_ops op;
170 len = sizeof(struct i40e_virtchnl_vf_resource) +
171 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
173 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
174 if (!event.msg_buf) {
180 /* When the AQ is empty, i40evf_clean_arq_element will return
181 * nonzero and this loop will terminate.
183 err = i40evf_clean_arq_element(hw, &event, NULL);
187 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
188 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
192 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
193 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
195 i40e_vf_parse_hw_config(hw, adapter->vf_res);
197 kfree(event.msg_buf);
203 * i40evf_configure_queues
204 * @adapter: adapter structure
206 * Request that the PF set up our (previously allocated) queues.
208 void i40evf_configure_queues(struct i40evf_adapter *adapter)
210 struct i40e_virtchnl_vsi_queue_config_info *vqci;
211 struct i40e_virtchnl_queue_pair_info *vqpi;
212 int pairs = adapter->num_active_queues;
215 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
216 /* bail because we already have a command pending */
217 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
218 __func__, adapter->current_op);
221 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
222 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
223 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
224 vqci = kzalloc(len, GFP_ATOMIC);
228 vqci->vsi_id = adapter->vsi_res->vsi_id;
229 vqci->num_queue_pairs = pairs;
231 /* Size check is not needed here - HW max is 16 queue pairs, and we
232 * can fit info for 31 of them into the AQ buffer before it overflows.
234 for (i = 0; i < pairs; i++) {
235 vqpi->txq.vsi_id = vqci->vsi_id;
236 vqpi->txq.queue_id = i;
237 vqpi->txq.ring_len = adapter->tx_rings[i]->count;
238 vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
239 vqpi->txq.headwb_enabled = 1;
240 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
241 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
243 vqpi->rxq.vsi_id = vqci->vsi_id;
244 vqpi->rxq.queue_id = i;
245 vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
246 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
247 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
248 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
249 vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
253 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
254 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
260 * i40evf_enable_queues
261 * @adapter: adapter structure
263 * Request that the PF enable all of our queues.
265 void i40evf_enable_queues(struct i40evf_adapter *adapter)
267 struct i40e_virtchnl_queue_select vqs;
269 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
270 /* bail because we already have a command pending */
271 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
272 __func__, adapter->current_op);
275 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
276 vqs.vsi_id = adapter->vsi_res->vsi_id;
277 vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
278 vqs.rx_queues = vqs.tx_queues;
279 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
280 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
281 (u8 *)&vqs, sizeof(vqs));
285 * i40evf_disable_queues
286 * @adapter: adapter structure
288 * Request that the PF disable all of our queues.
290 void i40evf_disable_queues(struct i40evf_adapter *adapter)
292 struct i40e_virtchnl_queue_select vqs;
294 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
295 /* bail because we already have a command pending */
296 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
297 __func__, adapter->current_op);
300 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
301 vqs.vsi_id = adapter->vsi_res->vsi_id;
302 vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
303 vqs.rx_queues = vqs.tx_queues;
304 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
305 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
306 (u8 *)&vqs, sizeof(vqs));
311 * @adapter: adapter structure
313 * Request that the PF map queues to interrupt vectors. Misc causes, including
314 * admin queue, are always mapped to vector 0.
316 void i40evf_map_queues(struct i40evf_adapter *adapter)
318 struct i40e_virtchnl_irq_map_info *vimi;
319 int v_idx, q_vectors, len;
320 struct i40e_q_vector *q_vector;
322 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
323 /* bail because we already have a command pending */
324 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
325 __func__, adapter->current_op);
328 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
330 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
332 len = sizeof(struct i40e_virtchnl_irq_map_info) +
333 (adapter->num_msix_vectors *
334 sizeof(struct i40e_virtchnl_vector_map));
335 vimi = kzalloc(len, GFP_ATOMIC);
339 vimi->num_vectors = adapter->num_msix_vectors;
340 /* Queue vectors first */
341 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
342 q_vector = adapter->q_vector[v_idx];
343 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
344 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
345 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
346 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
348 /* Misc vector last - this is only for AdminQ messages */
349 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
350 vimi->vecmap[v_idx].vector_id = 0;
351 vimi->vecmap[v_idx].txq_map = 0;
352 vimi->vecmap[v_idx].rxq_map = 0;
354 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
355 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
361 * i40evf_add_ether_addrs
362 * @adapter: adapter structure
363 * @addrs: the MAC address filters to add (contiguous)
364 * @count: number of filters
366 * Request that the PF add one or more addresses to our filters.
368 void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
370 struct i40e_virtchnl_ether_addr_list *veal;
371 int len, i = 0, count = 0;
372 struct i40evf_mac_filter *f;
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);
380 list_for_each_entry(f, &adapter->mac_filter_list, list) {
385 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
388 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
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",
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;
401 veal = kzalloc(len, GFP_ATOMIC);
405 veal->vsi_id = adapter->vsi_res->vsi_id;
406 veal->num_elements = count;
407 list_for_each_entry(f, &adapter->mac_filter_list, list) {
409 ether_addr_copy(veal->list[i].addr, f->macaddr);
414 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
415 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
421 * i40evf_del_ether_addrs
422 * @adapter: adapter structure
423 * @addrs: the MAC address filters to remove (contiguous)
424 * @count: number of filtes
426 * Request that the PF remove one or more addresses from our filters.
428 void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
430 struct i40e_virtchnl_ether_addr_list *veal;
431 struct i40evf_mac_filter *f, *ftmp;
432 int len, i = 0, count = 0;
434 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
435 /* bail because we already have a command pending */
436 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
437 __func__, adapter->current_op);
440 list_for_each_entry(f, &adapter->mac_filter_list, list) {
445 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
448 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
450 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
451 (count * sizeof(struct i40e_virtchnl_ether_addr));
452 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
453 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
455 count = (I40EVF_MAX_AQ_BUF_SIZE -
456 sizeof(struct i40e_virtchnl_ether_addr_list)) /
457 sizeof(struct i40e_virtchnl_ether_addr);
458 len = I40EVF_MAX_AQ_BUF_SIZE;
460 veal = kzalloc(len, GFP_ATOMIC);
464 veal->vsi_id = adapter->vsi_res->vsi_id;
465 veal->num_elements = count;
466 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
468 ether_addr_copy(veal->list[i].addr, f->macaddr);
474 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
475 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
482 * @adapter: adapter structure
483 * @vlans: the VLANs to add
484 * @count: number of VLANs
486 * Request that the PF add one or more VLAN filters to our VSI.
488 void i40evf_add_vlans(struct i40evf_adapter *adapter)
490 struct i40e_virtchnl_vlan_filter_list *vvfl;
491 int len, i = 0, count = 0;
492 struct i40evf_vlan_filter *f;
494 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
495 /* bail because we already have a command pending */
496 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
497 __func__, adapter->current_op);
501 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
506 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
509 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
511 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
512 (count * sizeof(u16));
513 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
514 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
516 count = (I40EVF_MAX_AQ_BUF_SIZE -
517 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
519 len = I40EVF_MAX_AQ_BUF_SIZE;
521 vvfl = kzalloc(len, GFP_ATOMIC);
525 vvfl->vsi_id = adapter->vsi_res->vsi_id;
526 vvfl->num_elements = count;
527 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
529 vvfl->vlan_id[i] = f->vlan;
534 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
535 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
541 * @adapter: adapter structure
542 * @vlans: the VLANs to remove
543 * @count: number of VLANs
545 * Request that the PF remove one or more VLAN filters from our VSI.
547 void i40evf_del_vlans(struct i40evf_adapter *adapter)
549 struct i40e_virtchnl_vlan_filter_list *vvfl;
550 struct i40evf_vlan_filter *f, *ftmp;
551 int len, i = 0, count = 0;
553 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
554 /* bail because we already have a command pending */
555 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
556 __func__, adapter->current_op);
560 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
565 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
568 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
570 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
571 (count * sizeof(u16));
572 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
573 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
575 count = (I40EVF_MAX_AQ_BUF_SIZE -
576 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
578 len = I40EVF_MAX_AQ_BUF_SIZE;
580 vvfl = kzalloc(len, GFP_ATOMIC);
584 vvfl->vsi_id = adapter->vsi_res->vsi_id;
585 vvfl->num_elements = count;
586 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
588 vvfl->vlan_id[i] = f->vlan;
594 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
595 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
600 * i40evf_set_promiscuous
601 * @adapter: adapter structure
602 * @flags: bitmask to control unicast/multicast promiscuous.
604 * Request that the PF enable promiscuous mode for our VSI.
606 void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
608 struct i40e_virtchnl_promisc_info vpi;
610 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
611 /* bail because we already have a command pending */
612 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
613 __func__, adapter->current_op);
616 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
617 vpi.vsi_id = adapter->vsi_res->vsi_id;
619 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
620 (u8 *)&vpi, sizeof(vpi));
624 * i40evf_request_stats
625 * @adapter: adapter structure
627 * Request VSI statistics from PF.
629 void i40evf_request_stats(struct i40evf_adapter *adapter)
631 struct i40e_virtchnl_queue_select vqs;
633 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
634 /* no error message, this isn't crucial */
637 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
638 vqs.vsi_id = adapter->vsi_res->vsi_id;
639 /* queue maps are ignored for this message - only the vsi is used */
640 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
641 (u8 *)&vqs, sizeof(vqs)))
642 /* if the request failed, don't lock out others */
643 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
646 * i40evf_request_reset
647 * @adapter: adapter structure
649 * Request that the PF reset this VF. No response is expected.
651 void i40evf_request_reset(struct i40evf_adapter *adapter)
653 /* Don't check CURRENT_OP - this is always higher priority */
654 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
655 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
659 * i40evf_virtchnl_completion
660 * @adapter: adapter structure
661 * @v_opcode: opcode sent by PF
662 * @v_retval: retval sent by PF
663 * @msg: message sent by PF
664 * @msglen: message length
666 * Asynchronous completion function for admin queue messages. Rather than busy
667 * wait, we fire off our requests and assume that no errors will be returned.
668 * This function handles the reply messages.
670 void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
671 enum i40e_virtchnl_ops v_opcode,
672 i40e_status v_retval,
675 struct net_device *netdev = adapter->netdev;
677 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
678 struct i40e_virtchnl_pf_event *vpe =
679 (struct i40e_virtchnl_pf_event *)msg;
680 switch (vpe->event) {
681 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
683 vpe->event_data.link_event.link_status;
684 if (adapter->link_up && !netif_carrier_ok(netdev)) {
685 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
686 netif_carrier_on(netdev);
687 netif_tx_wake_all_queues(netdev);
688 } else if (!adapter->link_up) {
689 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
690 netif_carrier_off(netdev);
691 netif_tx_stop_all_queues(netdev);
694 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
695 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
696 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
697 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
698 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
699 schedule_work(&adapter->reset_task);
703 dev_err(&adapter->pdev->dev,
704 "%s: Unknown event %d from pf\n",
705 __func__, vpe->event);
711 dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d\n",
712 __func__, v_retval, v_opcode);
715 case I40E_VIRTCHNL_OP_GET_STATS: {
716 struct i40e_eth_stats *stats =
717 (struct i40e_eth_stats *)msg;
718 adapter->net_stats.rx_packets = stats->rx_unicast +
719 stats->rx_multicast +
721 adapter->net_stats.tx_packets = stats->tx_unicast +
722 stats->tx_multicast +
724 adapter->net_stats.rx_bytes = stats->rx_bytes;
725 adapter->net_stats.tx_bytes = stats->tx_bytes;
726 adapter->net_stats.tx_errors = stats->tx_errors;
727 adapter->net_stats.rx_dropped = stats->rx_discards;
728 adapter->net_stats.tx_dropped = stats->tx_discards;
729 adapter->current_stats = *stats;
732 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
733 /* enable transmits */
734 i40evf_irq_enable(adapter, true);
735 netif_tx_start_all_queues(adapter->netdev);
736 netif_carrier_on(adapter->netdev);
738 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
739 i40evf_free_all_tx_resources(adapter);
740 i40evf_free_all_rx_resources(adapter);
742 case I40E_VIRTCHNL_OP_VERSION:
743 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
744 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
745 /* Don't display an error if we get these out of sequence.
746 * If the firmware needed to get kicked, we'll get these and
749 if (v_opcode != adapter->current_op)
753 if (v_opcode != adapter->current_op)
754 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
755 adapter->current_op, v_opcode);
757 } /* switch v_opcode */
758 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;