1/******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver 4 * Copyright(c) 2013 - 2014 Intel Corporation. 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 * 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/>. 17 * 18 * The full GNU General Public License is included in this distribution in 19 * the file called "COPYING". 20 * 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 24 * 25 ******************************************************************************/ 26 27#include "i40evf.h" 28#include "i40e_prototype.h" 29 30/* busy wait delay in msec */ 31#define I40EVF_BUSY_WAIT_DELAY 10 32#define I40EVF_BUSY_WAIT_COUNT 50 33 34/** 35 * i40evf_send_pf_msg 36 * @adapter: adapter structure 37 * @op: virtual channel opcode 38 * @msg: pointer to message buffer 39 * @len: message length 40 * 41 * Send message to PF and print status if failure. 42 **/ 43static int i40evf_send_pf_msg(struct i40evf_adapter *adapter, 44 enum i40e_virtchnl_ops op, u8 *msg, u16 len) 45{ 46 struct i40e_hw *hw = &adapter->hw; 47 i40e_status err; 48 49 if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) 50 return 0; /* nothing to see here, move along */ 51 52 err = i40e_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL); 53 if (err) 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); 56 return err; 57} 58 59/** 60 * i40evf_send_api_ver 61 * @adapter: adapter structure 62 * 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. 66 **/ 67int i40evf_send_api_ver(struct i40evf_adapter *adapter) 68{ 69 struct i40e_virtchnl_version_info vvi; 70 71 vvi.major = I40E_VIRTCHNL_VERSION_MAJOR; 72 vvi.minor = I40E_VIRTCHNL_VERSION_MINOR; 73 74 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi, 75 sizeof(vvi)); 76} 77 78/** 79 * i40evf_verify_api_ver 80 * @adapter: adapter structure 81 * 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. 86 **/ 87int i40evf_verify_api_ver(struct i40evf_adapter *adapter) 88{ 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; 93 i40e_status err; 94 95 event.buf_len = I40EVF_MAX_AQ_BUF_SIZE; 96 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); 97 if (!event.msg_buf) { 98 err = -ENOMEM; 99 goto out; 100 } 101 102 while (1) { 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. 106 */ 107 if (err) 108 goto out_alloc; 109 op = 110 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high); 111 if (op == I40E_VIRTCHNL_OP_VERSION) 112 break; 113 } 114 115 116 err = (i40e_status)le32_to_cpu(event.desc.cookie_low); 117 if (err) 118 goto out_alloc; 119 120 if (op != I40E_VIRTCHNL_OP_VERSION) { 121 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n", 122 op); 123 err = -EIO; 124 goto out_alloc; 125 } 126 127 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)) 130 err = -EIO; 131 132out_alloc: 133 kfree(event.msg_buf); 134out: 135 return err; 136} 137 138/** 139 * i40evf_send_vf_config_msg 140 * @adapter: adapter structure 141 * 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. 145 **/ 146int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter) 147{ 148 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, 149 NULL, 0); 150} 151 152/** 153 * i40evf_get_vf_config 154 * @hw: pointer to the hardware structure 155 * @len: length of buffer 156 * 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. 161 **/ 162int i40evf_get_vf_config(struct i40evf_adapter *adapter) 163{ 164 struct i40e_hw *hw = &adapter->hw; 165 struct i40e_arq_event_info event; 166 enum i40e_virtchnl_ops op; 167 i40e_status err; 168 u16 len; 169 170 len = sizeof(struct i40e_virtchnl_vf_resource) + 171 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource); 172 event.buf_len = len; 173 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); 174 if (!event.msg_buf) { 175 err = -ENOMEM; 176 goto out; 177 } 178 179 while (1) { 180 /* When the AQ is empty, i40evf_clean_arq_element will return 181 * nonzero and this loop will terminate. 182 */ 183 err = i40evf_clean_arq_element(hw, &event, NULL); 184 if (err) 185 goto out_alloc; 186 op = 187 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high); 188 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES) 189 break; 190 } 191 192 err = (i40e_status)le32_to_cpu(event.desc.cookie_low); 193 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len)); 194 195 i40e_vf_parse_hw_config(hw, adapter->vf_res); 196out_alloc: 197 kfree(event.msg_buf); 198out: 199 return err; 200} 201 202/** 203 * i40evf_configure_queues 204 * @adapter: adapter structure 205 * 206 * Request that the PF set up our (previously allocated) queues. 207 **/ 208void i40evf_configure_queues(struct i40evf_adapter *adapter) 209{ 210 struct i40e_virtchnl_vsi_queue_config_info *vqci; 211 struct i40e_virtchnl_queue_pair_info *vqpi; 212 int pairs = adapter->num_active_queues; 213 int i, len; 214 215 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); 219 return; 220 } 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); 225 if (!vqci) 226 return; 227 228 vqci->vsi_id = adapter->vsi_res->vsi_id; 229 vqci->num_queue_pairs = pairs; 230 vqpi = vqci->qpair; 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. 233 */ 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)); 242 243 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; 250 vqpi++; 251 } 252 253 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES; 254 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, 255 (u8 *)vqci, len); 256 kfree(vqci); 257} 258 259/** 260 * i40evf_enable_queues 261 * @adapter: adapter structure 262 * 263 * Request that the PF enable all of our queues. 264 **/ 265void i40evf_enable_queues(struct i40evf_adapter *adapter) 266{ 267 struct i40e_virtchnl_queue_select vqs; 268 269 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); 273 return; 274 } 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)); 282} 283 284/** 285 * i40evf_disable_queues 286 * @adapter: adapter structure 287 * 288 * Request that the PF disable all of our queues. 289 **/ 290void i40evf_disable_queues(struct i40evf_adapter *adapter) 291{ 292 struct i40e_virtchnl_queue_select vqs; 293 294 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); 298 return; 299 } 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)); 307} 308 309/** 310 * i40evf_map_queues 311 * @adapter: adapter structure 312 * 313 * Request that the PF map queues to interrupt vectors. Misc causes, including 314 * admin queue, are always mapped to vector 0. 315 **/ 316void i40evf_map_queues(struct i40evf_adapter *adapter) 317{ 318 struct i40e_virtchnl_irq_map_info *vimi; 319 int v_idx, q_vectors, len; 320 struct i40e_q_vector *q_vector; 321 322 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); 326 return; 327 } 328 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP; 329 330 q_vectors = adapter->num_msix_vectors - NONQ_VECS; 331 332 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); 336 if (!vimi) 337 return; 338 339 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; 347 } 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; 353 354 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS; 355 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, 356 (u8 *)vimi, len); 357 kfree(vimi); 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 **/ 368void 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 return; 404 405 veal->vsi_id = adapter->vsi_res->vsi_id; 406 veal->num_elements = count; 407 list_for_each_entry(f, &adapter->mac_filter_list, list) { 408 if (f->add) { 409 ether_addr_copy(veal->list[i].addr, f->macaddr); 410 i++; 411 f->add = false; 412 } 413 } 414 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER; 415 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, 416 (u8 *)veal, len); 417 kfree(veal); 418} 419 420/** 421 * i40evf_del_ether_addrs 422 * @adapter: adapter structure 423 * @addrs: the MAC address filters to remove (contiguous) 424 * @count: number of filtes 425 * 426 * Request that the PF remove one or more addresses from our filters. 427 **/ 428void i40evf_del_ether_addrs(struct i40evf_adapter *adapter) 429{ 430 struct i40e_virtchnl_ether_addr_list *veal; 431 struct i40evf_mac_filter *f, *ftmp; 432 int len, i = 0, count = 0; 433 434 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); 438 return; 439 } 440 list_for_each_entry(f, &adapter->mac_filter_list, list) { 441 if (f->remove) 442 count++; 443 } 444 if (!count) { 445 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER; 446 return; 447 } 448 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS; 449 450 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", 454 __func__); 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; 459 } 460 veal = kzalloc(len, GFP_ATOMIC); 461 if (!veal) 462 return; 463 464 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) { 467 if (f->remove) { 468 ether_addr_copy(veal->list[i].addr, f->macaddr); 469 i++; 470 list_del(&f->list); 471 kfree(f); 472 } 473 } 474 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER; 475 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, 476 (u8 *)veal, len); 477 kfree(veal); 478} 479 480/** 481 * i40evf_add_vlans 482 * @adapter: adapter structure 483 * @vlans: the VLANs to add 484 * @count: number of VLANs 485 * 486 * Request that the PF add one or more VLAN filters to our VSI. 487 **/ 488void i40evf_add_vlans(struct i40evf_adapter *adapter) 489{ 490 struct i40e_virtchnl_vlan_filter_list *vvfl; 491 int len, i = 0, count = 0; 492 struct i40evf_vlan_filter *f; 493 494 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); 498 return; 499 } 500 501 list_for_each_entry(f, &adapter->vlan_filter_list, list) { 502 if (f->add) 503 count++; 504 } 505 if (!count) { 506 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER; 507 return; 508 } 509 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN; 510 511 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", 515 __func__); 516 count = (I40EVF_MAX_AQ_BUF_SIZE - 517 sizeof(struct i40e_virtchnl_vlan_filter_list)) / 518 sizeof(u16); 519 len = I40EVF_MAX_AQ_BUF_SIZE; 520 } 521 vvfl = kzalloc(len, GFP_ATOMIC); 522 if (!vvfl) 523 return; 524 525 vvfl->vsi_id = adapter->vsi_res->vsi_id; 526 vvfl->num_elements = count; 527 list_for_each_entry(f, &adapter->vlan_filter_list, list) { 528 if (f->add) { 529 vvfl->vlan_id[i] = f->vlan; 530 i++; 531 f->add = false; 532 } 533 } 534 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER; 535 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len); 536 kfree(vvfl); 537} 538 539/** 540 * i40evf_del_vlans 541 * @adapter: adapter structure 542 * @vlans: the VLANs to remove 543 * @count: number of VLANs 544 * 545 * Request that the PF remove one or more VLAN filters from our VSI. 546 **/ 547void i40evf_del_vlans(struct i40evf_adapter *adapter) 548{ 549 struct i40e_virtchnl_vlan_filter_list *vvfl; 550 struct i40evf_vlan_filter *f, *ftmp; 551 int len, i = 0, count = 0; 552 553 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); 557 return; 558 } 559 560 list_for_each_entry(f, &adapter->vlan_filter_list, list) { 561 if (f->remove) 562 count++; 563 } 564 if (!count) { 565 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER; 566 return; 567 } 568 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN; 569 570 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", 574 __func__); 575 count = (I40EVF_MAX_AQ_BUF_SIZE - 576 sizeof(struct i40e_virtchnl_vlan_filter_list)) / 577 sizeof(u16); 578 len = I40EVF_MAX_AQ_BUF_SIZE; 579 } 580 vvfl = kzalloc(len, GFP_ATOMIC); 581 if (!vvfl) 582 return; 583 584 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) { 587 if (f->remove) { 588 vvfl->vlan_id[i] = f->vlan; 589 i++; 590 list_del(&f->list); 591 kfree(f); 592 } 593 } 594 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER; 595 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len); 596 kfree(vvfl); 597} 598 599/** 600 * i40evf_set_promiscuous 601 * @adapter: adapter structure 602 * @flags: bitmask to control unicast/multicast promiscuous. 603 * 604 * Request that the PF enable promiscuous mode for our VSI. 605 **/ 606void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags) 607{ 608 struct i40e_virtchnl_promisc_info vpi; 609 610 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); 614 return; 615 } 616 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE; 617 vpi.vsi_id = adapter->vsi_res->vsi_id; 618 vpi.flags = flags; 619 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 620 (u8 *)&vpi, sizeof(vpi)); 621} 622 623/** 624 * i40evf_request_stats 625 * @adapter: adapter structure 626 * 627 * Request VSI statistics from PF. 628 **/ 629void i40evf_request_stats(struct i40evf_adapter *adapter) 630{ 631 struct i40e_virtchnl_queue_select vqs; 632 633 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { 634 /* no error message, this isn't crucial */ 635 return; 636 } 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; 644} 645/** 646 * i40evf_request_reset 647 * @adapter: adapter structure 648 * 649 * Request that the PF reset this VF. No response is expected. 650 **/ 651void i40evf_request_reset(struct i40evf_adapter *adapter) 652{ 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; 656} 657 658/** 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 665 * 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. 669 **/ 670void i40evf_virtchnl_completion(struct i40evf_adapter *adapter, 671 enum i40e_virtchnl_ops v_opcode, 672 i40e_status v_retval, 673 u8 *msg, u16 msglen) 674{ 675 struct net_device *netdev = adapter->netdev; 676 677 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: 682 adapter->link_up = 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); 692 } 693 break; 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); 700 } 701 break; 702 default: 703 dev_err(&adapter->pdev->dev, 704 "%s: Unknown event %d from pf\n", 705 __func__, vpe->event); 706 break; 707 } 708 return; 709 } 710 if (v_retval) { 711 dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d\n", 712 __func__, v_retval, v_opcode); 713 } 714 switch (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 + 720 stats->rx_broadcast; 721 adapter->net_stats.tx_packets = stats->tx_unicast + 722 stats->tx_multicast + 723 stats->tx_broadcast; 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; 730 } 731 break; 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); 737 break; 738 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 739 i40evf_free_all_tx_resources(adapter); 740 i40evf_free_all_rx_resources(adapter); 741 break; 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 747 * it's no problem. 748 */ 749 if (v_opcode != adapter->current_op) 750 return; 751 break; 752 default: 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); 756 break; 757 } /* switch v_opcode */ 758 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; 759} 760