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 adapter->current_op = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
162 adapter->aq_required &= ~I40EVF_FLAG_AQ_GET_CONFIG;
163 if (PF_IS_V11(adapter))
164 return i40evf_send_pf_msg(adapter,
165 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
166 (u8 *)&caps, sizeof(caps));
168 return i40evf_send_pf_msg(adapter,
169 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
174 * i40evf_get_vf_config
175 * @hw: pointer to the hardware structure
176 * @len: length of buffer
178 * Get VF configuration from PF and populate hw structure. Must be called after
179 * admin queue is initialized. Busy waits until response is received from PF,
180 * with maximum timeout. Response from PF is returned in the buffer for further
181 * processing by the caller.
183 int i40evf_get_vf_config(struct i40evf_adapter *adapter)
185 struct i40e_hw *hw = &adapter->hw;
186 struct i40e_arq_event_info event;
187 enum i40e_virtchnl_ops op;
191 len = sizeof(struct i40e_virtchnl_vf_resource) +
192 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
194 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
195 if (!event.msg_buf) {
201 /* When the AQ is empty, i40evf_clean_arq_element will return
202 * nonzero and this loop will terminate.
204 err = i40evf_clean_arq_element(hw, &event, NULL);
208 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
209 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
213 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
214 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
216 i40e_vf_parse_hw_config(hw, adapter->vf_res);
218 kfree(event.msg_buf);
224 * i40evf_configure_queues
225 * @adapter: adapter structure
227 * Request that the PF set up our (previously allocated) queues.
229 void i40evf_configure_queues(struct i40evf_adapter *adapter)
231 struct i40e_virtchnl_vsi_queue_config_info *vqci;
232 struct i40e_virtchnl_queue_pair_info *vqpi;
233 int pairs = adapter->num_active_queues;
236 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
237 /* bail because we already have a command pending */
238 dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
239 adapter->current_op);
242 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
243 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
244 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
245 vqci = kzalloc(len, GFP_ATOMIC);
249 vqci->vsi_id = adapter->vsi_res->vsi_id;
250 vqci->num_queue_pairs = pairs;
252 /* Size check is not needed here - HW max is 16 queue pairs, and we
253 * can fit info for 31 of them into the AQ buffer before it overflows.
255 for (i = 0; i < pairs; i++) {
256 vqpi->txq.vsi_id = vqci->vsi_id;
257 vqpi->txq.queue_id = i;
258 vqpi->txq.ring_len = adapter->tx_rings[i]->count;
259 vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
260 vqpi->txq.headwb_enabled = 1;
261 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
262 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
264 vqpi->rxq.vsi_id = vqci->vsi_id;
265 vqpi->rxq.queue_id = i;
266 vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
267 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
268 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
269 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
270 vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
274 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
275 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
281 * i40evf_enable_queues
282 * @adapter: adapter structure
284 * Request that the PF enable all of our queues.
286 void i40evf_enable_queues(struct i40evf_adapter *adapter)
288 struct i40e_virtchnl_queue_select vqs;
290 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
291 /* bail because we already have a command pending */
292 dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
293 adapter->current_op);
296 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
297 vqs.vsi_id = adapter->vsi_res->vsi_id;
298 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
299 vqs.rx_queues = vqs.tx_queues;
300 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
301 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
302 (u8 *)&vqs, sizeof(vqs));
306 * i40evf_disable_queues
307 * @adapter: adapter structure
309 * Request that the PF disable all of our queues.
311 void i40evf_disable_queues(struct i40evf_adapter *adapter)
313 struct i40e_virtchnl_queue_select vqs;
315 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
316 /* bail because we already have a command pending */
317 dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
318 adapter->current_op);
321 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
322 vqs.vsi_id = adapter->vsi_res->vsi_id;
323 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
324 vqs.rx_queues = vqs.tx_queues;
325 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
326 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
327 (u8 *)&vqs, sizeof(vqs));
332 * @adapter: adapter structure
334 * Request that the PF map queues to interrupt vectors. Misc causes, including
335 * admin queue, are always mapped to vector 0.
337 void i40evf_map_queues(struct i40evf_adapter *adapter)
339 struct i40e_virtchnl_irq_map_info *vimi;
340 int v_idx, q_vectors, len;
341 struct i40e_q_vector *q_vector;
343 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
344 /* bail because we already have a command pending */
345 dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
346 adapter->current_op);
349 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
351 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
353 len = sizeof(struct i40e_virtchnl_irq_map_info) +
354 (adapter->num_msix_vectors *
355 sizeof(struct i40e_virtchnl_vector_map));
356 vimi = kzalloc(len, GFP_ATOMIC);
360 vimi->num_vectors = adapter->num_msix_vectors;
361 /* Queue vectors first */
362 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
363 q_vector = adapter->q_vector[v_idx];
364 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
365 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
366 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
367 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
369 /* Misc vector last - this is only for AdminQ messages */
370 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
371 vimi->vecmap[v_idx].vector_id = 0;
372 vimi->vecmap[v_idx].txq_map = 0;
373 vimi->vecmap[v_idx].rxq_map = 0;
375 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
376 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
382 * i40evf_add_ether_addrs
383 * @adapter: adapter structure
384 * @addrs: the MAC address filters to add (contiguous)
385 * @count: number of filters
387 * Request that the PF add one or more addresses to our filters.
389 void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
391 struct i40e_virtchnl_ether_addr_list *veal;
392 int len, i = 0, count = 0;
393 struct i40evf_mac_filter *f;
395 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
396 /* bail because we already have a command pending */
397 dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
398 adapter->current_op);
401 list_for_each_entry(f, &adapter->mac_filter_list, list) {
406 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
409 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
411 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
412 (count * sizeof(struct i40e_virtchnl_ether_addr));
413 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
414 dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
415 count = (I40EVF_MAX_AQ_BUF_SIZE -
416 sizeof(struct i40e_virtchnl_ether_addr_list)) /
417 sizeof(struct i40e_virtchnl_ether_addr);
418 len = I40EVF_MAX_AQ_BUF_SIZE;
421 veal = kzalloc(len, GFP_ATOMIC);
425 veal->vsi_id = adapter->vsi_res->vsi_id;
426 veal->num_elements = count;
427 list_for_each_entry(f, &adapter->mac_filter_list, list) {
429 ether_addr_copy(veal->list[i].addr, f->macaddr);
434 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
435 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
441 * i40evf_del_ether_addrs
442 * @adapter: adapter structure
443 * @addrs: the MAC address filters to remove (contiguous)
444 * @count: number of filtes
446 * Request that the PF remove one or more addresses from our filters.
448 void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
450 struct i40e_virtchnl_ether_addr_list *veal;
451 struct i40evf_mac_filter *f, *ftmp;
452 int len, i = 0, count = 0;
454 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
455 /* bail because we already have a command pending */
456 dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
457 adapter->current_op);
460 list_for_each_entry(f, &adapter->mac_filter_list, list) {
465 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
468 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
470 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
471 (count * sizeof(struct i40e_virtchnl_ether_addr));
472 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
473 dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
474 count = (I40EVF_MAX_AQ_BUF_SIZE -
475 sizeof(struct i40e_virtchnl_ether_addr_list)) /
476 sizeof(struct i40e_virtchnl_ether_addr);
477 len = I40EVF_MAX_AQ_BUF_SIZE;
479 veal = kzalloc(len, GFP_ATOMIC);
483 veal->vsi_id = adapter->vsi_res->vsi_id;
484 veal->num_elements = count;
485 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
487 ether_addr_copy(veal->list[i].addr, f->macaddr);
493 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
494 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
501 * @adapter: adapter structure
502 * @vlans: the VLANs to add
503 * @count: number of VLANs
505 * Request that the PF add one or more VLAN filters to our VSI.
507 void i40evf_add_vlans(struct i40evf_adapter *adapter)
509 struct i40e_virtchnl_vlan_filter_list *vvfl;
510 int len, i = 0, count = 0;
511 struct i40evf_vlan_filter *f;
513 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
514 /* bail because we already have a command pending */
515 dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
516 adapter->current_op);
520 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
525 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
528 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
530 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
531 (count * sizeof(u16));
532 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
533 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
534 count = (I40EVF_MAX_AQ_BUF_SIZE -
535 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
537 len = I40EVF_MAX_AQ_BUF_SIZE;
539 vvfl = kzalloc(len, GFP_ATOMIC);
543 vvfl->vsi_id = adapter->vsi_res->vsi_id;
544 vvfl->num_elements = count;
545 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
547 vvfl->vlan_id[i] = f->vlan;
552 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
553 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
559 * @adapter: adapter structure
560 * @vlans: the VLANs to remove
561 * @count: number of VLANs
563 * Request that the PF remove one or more VLAN filters from our VSI.
565 void i40evf_del_vlans(struct i40evf_adapter *adapter)
567 struct i40e_virtchnl_vlan_filter_list *vvfl;
568 struct i40evf_vlan_filter *f, *ftmp;
569 int len, i = 0, count = 0;
571 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
572 /* bail because we already have a command pending */
573 dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
574 adapter->current_op);
578 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
583 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
586 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
588 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
589 (count * sizeof(u16));
590 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
591 dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
592 count = (I40EVF_MAX_AQ_BUF_SIZE -
593 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
595 len = I40EVF_MAX_AQ_BUF_SIZE;
597 vvfl = kzalloc(len, GFP_ATOMIC);
601 vvfl->vsi_id = adapter->vsi_res->vsi_id;
602 vvfl->num_elements = count;
603 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
605 vvfl->vlan_id[i] = f->vlan;
611 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
612 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
617 * i40evf_set_promiscuous
618 * @adapter: adapter structure
619 * @flags: bitmask to control unicast/multicast promiscuous.
621 * Request that the PF enable promiscuous mode for our VSI.
623 void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
625 struct i40e_virtchnl_promisc_info vpi;
627 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
628 /* bail because we already have a command pending */
629 dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
630 adapter->current_op);
633 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
634 vpi.vsi_id = adapter->vsi_res->vsi_id;
636 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
637 (u8 *)&vpi, sizeof(vpi));
641 * i40evf_request_stats
642 * @adapter: adapter structure
644 * Request VSI statistics from PF.
646 void i40evf_request_stats(struct i40evf_adapter *adapter)
648 struct i40e_virtchnl_queue_select vqs;
650 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
651 /* no error message, this isn't crucial */
654 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
655 vqs.vsi_id = adapter->vsi_res->vsi_id;
656 /* queue maps are ignored for this message - only the vsi is used */
657 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
658 (u8 *)&vqs, sizeof(vqs)))
659 /* if the request failed, don't lock out others */
660 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
663 * i40evf_request_reset
664 * @adapter: adapter structure
666 * Request that the PF reset this VF. No response is expected.
668 void i40evf_request_reset(struct i40evf_adapter *adapter)
670 /* Don't check CURRENT_OP - this is always higher priority */
671 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
672 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
676 * i40evf_virtchnl_completion
677 * @adapter: adapter structure
678 * @v_opcode: opcode sent by PF
679 * @v_retval: retval sent by PF
680 * @msg: message sent by PF
681 * @msglen: message length
683 * Asynchronous completion function for admin queue messages. Rather than busy
684 * wait, we fire off our requests and assume that no errors will be returned.
685 * This function handles the reply messages.
687 void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
688 enum i40e_virtchnl_ops v_opcode,
689 i40e_status v_retval,
692 struct net_device *netdev = adapter->netdev;
694 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
695 struct i40e_virtchnl_pf_event *vpe =
696 (struct i40e_virtchnl_pf_event *)msg;
697 switch (vpe->event) {
698 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
700 vpe->event_data.link_event.link_status;
701 if (adapter->link_up && !netif_carrier_ok(netdev)) {
702 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
703 netif_carrier_on(netdev);
704 netif_tx_wake_all_queues(netdev);
705 } else if (!adapter->link_up) {
706 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
707 netif_carrier_off(netdev);
708 netif_tx_stop_all_queues(netdev);
711 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
712 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
713 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
714 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
715 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
716 schedule_work(&adapter->reset_task);
720 dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
727 dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
728 v_retval, i40evf_stat_str(&adapter->hw, v_retval),
732 case I40E_VIRTCHNL_OP_GET_STATS: {
733 struct i40e_eth_stats *stats =
734 (struct i40e_eth_stats *)msg;
735 adapter->net_stats.rx_packets = stats->rx_unicast +
736 stats->rx_multicast +
738 adapter->net_stats.tx_packets = stats->tx_unicast +
739 stats->tx_multicast +
741 adapter->net_stats.rx_bytes = stats->rx_bytes;
742 adapter->net_stats.tx_bytes = stats->tx_bytes;
743 adapter->net_stats.tx_errors = stats->tx_errors;
744 adapter->net_stats.rx_dropped = stats->rx_discards;
745 adapter->net_stats.tx_dropped = stats->tx_discards;
746 adapter->current_stats = *stats;
749 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: {
750 u16 len = sizeof(struct i40e_virtchnl_vf_resource) +
752 sizeof(struct i40e_virtchnl_vsi_resource);
753 memcpy(adapter->vf_res, msg, min(msglen, len));
754 i40e_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
755 /* restore current mac address */
756 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
757 i40evf_process_config(adapter);
760 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
761 /* enable transmits */
762 i40evf_irq_enable(adapter, true);
763 netif_tx_start_all_queues(adapter->netdev);
764 netif_carrier_on(adapter->netdev);
766 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
767 i40evf_free_all_tx_resources(adapter);
768 i40evf_free_all_rx_resources(adapter);
770 case I40E_VIRTCHNL_OP_VERSION:
771 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
772 /* Don't display an error if we get these out of sequence.
773 * If the firmware needed to get kicked, we'll get these and
776 if (v_opcode != adapter->current_op)
780 if (v_opcode != adapter->current_op)
781 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
782 adapter->current_op, v_opcode);
784 } /* switch v_opcode */
785 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;