1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #include <linux/list.h> 5 #include <linux/errno.h> 6 #include <linux/net/intel/i40e_client.h> 7 8 #include "i40e.h" 9 #include "i40e_prototype.h" 10 11 static LIST_HEAD(i40e_devices); 12 static DEFINE_MUTEX(i40e_device_mutex); 13 DEFINE_IDA(i40e_client_ida); 14 15 static int i40e_client_virtchnl_send(struct i40e_info *ldev, 16 struct i40e_client *client, 17 u32 vf_id, u8 *msg, u16 len); 18 19 static int i40e_client_setup_qvlist(struct i40e_info *ldev, 20 struct i40e_client *client, 21 struct i40e_qvlist_info *qvlist_info); 22 23 static void i40e_client_request_reset(struct i40e_info *ldev, 24 struct i40e_client *client, 25 u32 reset_level); 26 27 static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, 28 struct i40e_client *client, 29 bool is_vf, u32 vf_id, 30 u32 flag, u32 valid_flag); 31 32 static struct i40e_ops i40e_lan_ops = { 33 .virtchnl_send = i40e_client_virtchnl_send, 34 .setup_qvlist = i40e_client_setup_qvlist, 35 .request_reset = i40e_client_request_reset, 36 .update_vsi_ctxt = i40e_client_update_vsi_ctxt, 37 }; 38 39 /** 40 * i40e_client_get_params - Get the params that can change at runtime 41 * @vsi: the VSI with the message 42 * @params: client param struct 43 * 44 **/ 45 static 46 int i40e_client_get_params(struct i40e_vsi *vsi, struct i40e_params *params) 47 { 48 struct i40e_dcbx_config *dcb_cfg = &vsi->back->hw.local_dcbx_config; 49 int i = 0; 50 51 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 52 u8 tc = dcb_cfg->etscfg.prioritytable[i]; 53 u16 qs_handle; 54 55 /* If TC is not enabled for VSI use TC0 for UP */ 56 if (!(vsi->tc_config.enabled_tc & BIT(tc))) 57 tc = 0; 58 59 qs_handle = le16_to_cpu(vsi->info.qs_handle[tc]); 60 params->qos.prio_qos[i].tc = tc; 61 params->qos.prio_qos[i].qs_handle = qs_handle; 62 if (qs_handle == I40E_AQ_VSI_QS_HANDLE_INVALID) { 63 dev_err(&vsi->back->pdev->dev, "Invalid queue set handle for TC = %d, vsi id = %d\n", 64 tc, vsi->id); 65 return -EINVAL; 66 } 67 } 68 69 params->mtu = vsi->netdev->mtu; 70 return 0; 71 } 72 73 /** 74 * i40e_notify_client_of_vf_msg - call the client vf message callback 75 * @vsi: the VSI with the message 76 * @vf_id: the absolute VF id that sent the message 77 * @msg: message buffer 78 * @len: length of the message 79 * 80 * If there is a client to this VSI, call the client 81 **/ 82 void 83 i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id, u8 *msg, u16 len) 84 { 85 struct i40e_pf *pf = vsi->back; 86 struct i40e_client_instance *cdev = pf->cinst; 87 88 if (!cdev || !cdev->client) 89 return; 90 if (!cdev->client->ops || !cdev->client->ops->virtchnl_receive) { 91 dev_dbg(&pf->pdev->dev, 92 "Cannot locate client instance virtual channel receive routine\n"); 93 return; 94 } 95 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 96 dev_dbg(&pf->pdev->dev, "Client is not open, abort virtchnl_receive\n"); 97 return; 98 } 99 cdev->client->ops->virtchnl_receive(&cdev->lan_info, cdev->client, 100 vf_id, msg, len); 101 } 102 103 /** 104 * i40e_notify_client_of_l2_param_changes - call the client notify callback 105 * @vsi: the VSI with l2 param changes 106 * 107 * If there is a client to this VSI, call the client 108 **/ 109 void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi) 110 { 111 struct i40e_pf *pf = vsi->back; 112 struct i40e_client_instance *cdev = pf->cinst; 113 struct i40e_params params; 114 115 if (!cdev || !cdev->client) 116 return; 117 if (!cdev->client->ops || !cdev->client->ops->l2_param_change) { 118 dev_dbg(&vsi->back->pdev->dev, 119 "Cannot locate client instance l2_param_change routine\n"); 120 return; 121 } 122 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 123 dev_dbg(&vsi->back->pdev->dev, "Client is not open, abort l2 param change\n"); 124 return; 125 } 126 memset(¶ms, 0, sizeof(params)); 127 i40e_client_get_params(vsi, ¶ms); 128 memcpy(&cdev->lan_info.params, ¶ms, sizeof(struct i40e_params)); 129 cdev->client->ops->l2_param_change(&cdev->lan_info, cdev->client, 130 ¶ms); 131 } 132 133 /** 134 * i40e_client_release_qvlist - release MSI-X vector mapping for client 135 * @ldev: pointer to L2 context. 136 * 137 **/ 138 static void i40e_client_release_qvlist(struct i40e_info *ldev) 139 { 140 struct i40e_qvlist_info *qvlist_info = ldev->qvlist_info; 141 u32 i; 142 143 if (!ldev->qvlist_info) 144 return; 145 146 for (i = 0; i < qvlist_info->num_vectors; i++) { 147 struct i40e_pf *pf = ldev->pf; 148 struct i40e_qv_info *qv_info; 149 u32 reg_idx; 150 151 qv_info = &qvlist_info->qv_info[i]; 152 if (!qv_info) 153 continue; 154 reg_idx = I40E_PFINT_LNKLSTN(qv_info->v_idx - 1); 155 wr32(&pf->hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); 156 } 157 kfree(ldev->qvlist_info); 158 ldev->qvlist_info = NULL; 159 } 160 161 /** 162 * i40e_notify_client_of_netdev_close - call the client close callback 163 * @vsi: the VSI with netdev closed 164 * @reset: true when close called due to a reset pending 165 * 166 * If there is a client to this netdev, call the client with close 167 **/ 168 void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset) 169 { 170 struct i40e_pf *pf = vsi->back; 171 struct i40e_client_instance *cdev = pf->cinst; 172 173 if (!cdev || !cdev->client) 174 return; 175 if (!cdev->client->ops || !cdev->client->ops->close) { 176 dev_dbg(&vsi->back->pdev->dev, 177 "Cannot locate client instance close routine\n"); 178 return; 179 } 180 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 181 dev_dbg(&pf->pdev->dev, "Client is not open, abort close\n"); 182 return; 183 } 184 cdev->client->ops->close(&cdev->lan_info, cdev->client, reset); 185 clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); 186 i40e_client_release_qvlist(&cdev->lan_info); 187 } 188 189 /** 190 * i40e_notify_client_of_vf_reset - call the client vf reset callback 191 * @pf: PF device pointer 192 * @vf_id: asolute id of VF being reset 193 * 194 * If there is a client attached to this PF, notify when a VF is reset 195 **/ 196 void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id) 197 { 198 struct i40e_client_instance *cdev = pf->cinst; 199 200 if (!cdev || !cdev->client) 201 return; 202 if (!cdev->client->ops || !cdev->client->ops->vf_reset) { 203 dev_dbg(&pf->pdev->dev, 204 "Cannot locate client instance VF reset routine\n"); 205 return; 206 } 207 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 208 dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-reset\n"); 209 return; 210 } 211 cdev->client->ops->vf_reset(&cdev->lan_info, cdev->client, vf_id); 212 } 213 214 /** 215 * i40e_notify_client_of_vf_enable - call the client vf notification callback 216 * @pf: PF device pointer 217 * @num_vfs: the number of VFs currently enabled, 0 for disable 218 * 219 * If there is a client attached to this PF, call its VF notification routine 220 **/ 221 void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs) 222 { 223 struct i40e_client_instance *cdev = pf->cinst; 224 225 if (!cdev || !cdev->client) 226 return; 227 if (!cdev->client->ops || !cdev->client->ops->vf_enable) { 228 dev_dbg(&pf->pdev->dev, 229 "Cannot locate client instance VF enable routine\n"); 230 return; 231 } 232 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, 233 &cdev->state)) { 234 dev_dbg(&pf->pdev->dev, "Client is not open, abort vf-enable\n"); 235 return; 236 } 237 cdev->client->ops->vf_enable(&cdev->lan_info, cdev->client, num_vfs); 238 } 239 240 /** 241 * i40e_vf_client_capable - ask the client if it likes the specified VF 242 * @pf: PF device pointer 243 * @vf_id: the VF in question 244 * 245 * If there is a client of the specified type attached to this PF, call 246 * its vf_capable routine 247 **/ 248 int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id) 249 { 250 struct i40e_client_instance *cdev = pf->cinst; 251 int capable = false; 252 253 if (!cdev || !cdev->client) 254 goto out; 255 if (!cdev->client->ops || !cdev->client->ops->vf_capable) { 256 dev_dbg(&pf->pdev->dev, 257 "Cannot locate client instance VF capability routine\n"); 258 goto out; 259 } 260 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) 261 goto out; 262 263 capable = cdev->client->ops->vf_capable(&cdev->lan_info, 264 cdev->client, 265 vf_id); 266 out: 267 return capable; 268 } 269 270 void i40e_client_update_msix_info(struct i40e_pf *pf) 271 { 272 struct i40e_client_instance *cdev = pf->cinst; 273 274 if (!cdev || !cdev->client) 275 return; 276 277 cdev->lan_info.msix_count = pf->num_iwarp_msix; 278 cdev->lan_info.msix_entries = &pf->msix_entries[pf->iwarp_base_vector]; 279 } 280 281 static void i40e_auxiliary_dev_release(struct device *dev) 282 { 283 struct i40e_auxiliary_device *i40e_aux_dev = 284 container_of(dev, struct i40e_auxiliary_device, aux_dev.dev); 285 286 ida_free(&i40e_client_ida, i40e_aux_dev->aux_dev.id); 287 kfree(i40e_aux_dev); 288 } 289 290 static int i40e_register_auxiliary_dev(struct i40e_info *ldev, const char *name) 291 { 292 struct i40e_auxiliary_device *i40e_aux_dev; 293 struct pci_dev *pdev = ldev->pcidev; 294 struct auxiliary_device *aux_dev; 295 int ret; 296 297 i40e_aux_dev = kzalloc(sizeof(*i40e_aux_dev), GFP_KERNEL); 298 if (!i40e_aux_dev) 299 return -ENOMEM; 300 301 i40e_aux_dev->ldev = ldev; 302 303 aux_dev = &i40e_aux_dev->aux_dev; 304 aux_dev->name = name; 305 aux_dev->dev.parent = &pdev->dev; 306 aux_dev->dev.release = i40e_auxiliary_dev_release; 307 ldev->aux_dev = aux_dev; 308 309 ret = ida_alloc(&i40e_client_ida, GFP_KERNEL); 310 if (ret < 0) { 311 kfree(i40e_aux_dev); 312 return ret; 313 } 314 aux_dev->id = ret; 315 316 ret = auxiliary_device_init(aux_dev); 317 if (ret < 0) { 318 ida_free(&i40e_client_ida, aux_dev->id); 319 kfree(i40e_aux_dev); 320 return ret; 321 } 322 323 ret = auxiliary_device_add(aux_dev); 324 if (ret) { 325 auxiliary_device_uninit(aux_dev); 326 return ret; 327 } 328 329 return ret; 330 } 331 332 /** 333 * i40e_client_add_instance - add a client instance struct to the instance list 334 * @pf: pointer to the board struct 335 * 336 **/ 337 static void i40e_client_add_instance(struct i40e_pf *pf) 338 { 339 struct i40e_client_instance *cdev = NULL; 340 struct netdev_hw_addr *mac = NULL; 341 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 342 343 cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); 344 if (!cdev) 345 return; 346 347 cdev->lan_info.pf = (void *)pf; 348 cdev->lan_info.netdev = vsi->netdev; 349 cdev->lan_info.pcidev = pf->pdev; 350 cdev->lan_info.fid = pf->hw.pf_id; 351 cdev->lan_info.ftype = I40E_CLIENT_FTYPE_PF; 352 cdev->lan_info.hw_addr = pf->hw.hw_addr; 353 cdev->lan_info.ops = &i40e_lan_ops; 354 cdev->lan_info.version.major = I40E_CLIENT_VERSION_MAJOR; 355 cdev->lan_info.version.minor = I40E_CLIENT_VERSION_MINOR; 356 cdev->lan_info.version.build = I40E_CLIENT_VERSION_BUILD; 357 cdev->lan_info.fw_maj_ver = pf->hw.aq.fw_maj_ver; 358 cdev->lan_info.fw_min_ver = pf->hw.aq.fw_min_ver; 359 cdev->lan_info.fw_build = pf->hw.aq.fw_build; 360 set_bit(__I40E_CLIENT_INSTANCE_NONE, &cdev->state); 361 362 if (i40e_client_get_params(vsi, &cdev->lan_info.params)) 363 goto free_cdev; 364 365 mac = list_first_entry(&cdev->lan_info.netdev->dev_addrs.list, 366 struct netdev_hw_addr, list); 367 if (mac) 368 ether_addr_copy(cdev->lan_info.lanmac, mac->addr); 369 else 370 dev_err(&pf->pdev->dev, "MAC address list is empty!\n"); 371 372 pf->cinst = cdev; 373 374 cdev->lan_info.msix_count = pf->num_iwarp_msix; 375 cdev->lan_info.msix_entries = &pf->msix_entries[pf->iwarp_base_vector]; 376 377 if (i40e_register_auxiliary_dev(&cdev->lan_info, "iwarp")) 378 goto free_cdev; 379 380 return; 381 382 free_cdev: 383 kfree(cdev); 384 pf->cinst = NULL; 385 } 386 387 /** 388 * i40e_client_del_instance - removes a client instance from the list 389 * @pf: pointer to the board struct 390 * 391 **/ 392 static 393 void i40e_client_del_instance(struct i40e_pf *pf) 394 { 395 kfree(pf->cinst); 396 pf->cinst = NULL; 397 } 398 399 /** 400 * i40e_client_subtask - client maintenance work 401 * @pf: board private structure 402 **/ 403 void i40e_client_subtask(struct i40e_pf *pf) 404 { 405 struct i40e_client *client; 406 struct i40e_client_instance *cdev; 407 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 408 int ret = 0; 409 410 if (!test_and_clear_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state)) 411 return; 412 cdev = pf->cinst; 413 414 /* If we're down or resetting, just bail */ 415 if (test_bit(__I40E_DOWN, pf->state) || 416 test_bit(__I40E_CONFIG_BUSY, pf->state)) 417 return; 418 419 if (!cdev || !cdev->client) 420 return; 421 422 client = cdev->client; 423 424 /* Here we handle client opens. If the client is down, and 425 * the netdev is registered, then open the client. 426 */ 427 if (!test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 428 if (vsi->netdev_registered && 429 client->ops && client->ops->open) { 430 set_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); 431 ret = client->ops->open(&cdev->lan_info, client); 432 if (ret) { 433 /* Remove failed client instance */ 434 clear_bit(__I40E_CLIENT_INSTANCE_OPENED, 435 &cdev->state); 436 return; 437 } 438 } 439 } 440 441 /* enable/disable PE TCP_ENA flag based on netdev down/up 442 */ 443 if (test_bit(__I40E_VSI_DOWN, vsi->state)) 444 i40e_client_update_vsi_ctxt(&cdev->lan_info, client, 445 0, 0, 0, 446 I40E_CLIENT_VSI_FLAG_TCP_ENABLE); 447 else 448 i40e_client_update_vsi_ctxt(&cdev->lan_info, client, 449 0, 0, 450 I40E_CLIENT_VSI_FLAG_TCP_ENABLE, 451 I40E_CLIENT_VSI_FLAG_TCP_ENABLE); 452 } 453 454 /** 455 * i40e_lan_add_device - add a lan device struct to the list of lan devices 456 * @pf: pointer to the board struct 457 * 458 * Returns 0 on success or none 0 on error 459 **/ 460 int i40e_lan_add_device(struct i40e_pf *pf) 461 { 462 struct i40e_device *ldev; 463 int ret = 0; 464 465 mutex_lock(&i40e_device_mutex); 466 list_for_each_entry(ldev, &i40e_devices, list) { 467 if (ldev->pf == pf) { 468 ret = -EEXIST; 469 goto out; 470 } 471 } 472 ldev = kzalloc(sizeof(*ldev), GFP_KERNEL); 473 if (!ldev) { 474 ret = -ENOMEM; 475 goto out; 476 } 477 ldev->pf = pf; 478 INIT_LIST_HEAD(&ldev->list); 479 list_add(&ldev->list, &i40e_devices); 480 dev_info(&pf->pdev->dev, "Added LAN device PF%d bus=0x%02x dev=0x%02x func=0x%02x\n", 481 pf->hw.pf_id, pf->hw.bus.bus_id, 482 pf->hw.bus.device, pf->hw.bus.func); 483 484 i40e_client_add_instance(pf); 485 486 set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state); 487 i40e_service_event_schedule(pf); 488 489 out: 490 mutex_unlock(&i40e_device_mutex); 491 return ret; 492 } 493 494 /** 495 * i40e_lan_del_device - removes a lan device from the device list 496 * @pf: pointer to the board struct 497 * 498 * Returns 0 on success or non-0 on error 499 **/ 500 int i40e_lan_del_device(struct i40e_pf *pf) 501 { 502 struct auxiliary_device *aux_dev = pf->cinst->lan_info.aux_dev; 503 struct i40e_device *ldev, *tmp; 504 int ret = -ENODEV; 505 506 auxiliary_device_delete(aux_dev); 507 auxiliary_device_uninit(aux_dev); 508 509 /* First, remove any client instance. */ 510 i40e_client_del_instance(pf); 511 512 mutex_lock(&i40e_device_mutex); 513 list_for_each_entry_safe(ldev, tmp, &i40e_devices, list) { 514 if (ldev->pf == pf) { 515 dev_info(&pf->pdev->dev, "Deleted LAN device PF%d bus=0x%02x dev=0x%02x func=0x%02x\n", 516 pf->hw.pf_id, pf->hw.bus.bus_id, 517 pf->hw.bus.device, pf->hw.bus.func); 518 list_del(&ldev->list); 519 kfree(ldev); 520 ret = 0; 521 break; 522 } 523 } 524 mutex_unlock(&i40e_device_mutex); 525 return ret; 526 } 527 528 /** 529 * i40e_client_virtchnl_send - TBD 530 * @ldev: pointer to L2 context 531 * @client: Client pointer 532 * @vf_id: absolute VF identifier 533 * @msg: message buffer 534 * @len: length of message buffer 535 * 536 * Return 0 on success or < 0 on error 537 **/ 538 static int i40e_client_virtchnl_send(struct i40e_info *ldev, 539 struct i40e_client *client, 540 u32 vf_id, u8 *msg, u16 len) 541 { 542 struct i40e_pf *pf = ldev->pf; 543 struct i40e_hw *hw = &pf->hw; 544 int err; 545 546 err = i40e_aq_send_msg_to_vf(hw, vf_id, VIRTCHNL_OP_RDMA, 547 0, msg, len, NULL); 548 if (err) 549 dev_err(&pf->pdev->dev, "Unable to send iWarp message to VF, error %d, aq status %d\n", 550 err, hw->aq.asq_last_status); 551 552 return err; 553 } 554 555 /** 556 * i40e_client_setup_qvlist 557 * @ldev: pointer to L2 context. 558 * @client: Client pointer. 559 * @qvlist_info: queue and vector list 560 * 561 * Return 0 on success or < 0 on error 562 **/ 563 static int i40e_client_setup_qvlist(struct i40e_info *ldev, 564 struct i40e_client *client, 565 struct i40e_qvlist_info *qvlist_info) 566 { 567 struct i40e_pf *pf = ldev->pf; 568 struct i40e_hw *hw = &pf->hw; 569 struct i40e_qv_info *qv_info; 570 u32 v_idx, i, reg_idx, reg; 571 572 ldev->qvlist_info = kzalloc(struct_size(ldev->qvlist_info, qv_info, 573 qvlist_info->num_vectors), GFP_KERNEL); 574 if (!ldev->qvlist_info) 575 return -ENOMEM; 576 ldev->qvlist_info->num_vectors = qvlist_info->num_vectors; 577 578 for (i = 0; i < qvlist_info->num_vectors; i++) { 579 qv_info = &qvlist_info->qv_info[i]; 580 if (!qv_info) 581 continue; 582 v_idx = qv_info->v_idx; 583 584 /* Validate vector id belongs to this client */ 585 if ((v_idx >= (pf->iwarp_base_vector + pf->num_iwarp_msix)) || 586 (v_idx < pf->iwarp_base_vector)) 587 goto err; 588 589 ldev->qvlist_info->qv_info[i] = *qv_info; 590 reg_idx = I40E_PFINT_LNKLSTN(v_idx - 1); 591 592 if (qv_info->ceq_idx == I40E_QUEUE_INVALID_IDX) { 593 /* Special case - No CEQ mapped on this vector */ 594 wr32(hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK); 595 } else { 596 reg = (qv_info->ceq_idx & 597 I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) | 598 (I40E_QUEUE_TYPE_PE_CEQ << 599 I40E_PFINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 600 wr32(hw, reg_idx, reg); 601 602 reg = (I40E_PFINT_CEQCTL_CAUSE_ENA_MASK | 603 (v_idx << I40E_PFINT_CEQCTL_MSIX_INDX_SHIFT) | 604 (qv_info->itr_idx << 605 I40E_PFINT_CEQCTL_ITR_INDX_SHIFT) | 606 (I40E_QUEUE_END_OF_LIST << 607 I40E_PFINT_CEQCTL_NEXTQ_INDX_SHIFT)); 608 wr32(hw, I40E_PFINT_CEQCTL(qv_info->ceq_idx), reg); 609 } 610 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 611 reg = (I40E_PFINT_AEQCTL_CAUSE_ENA_MASK | 612 (v_idx << I40E_PFINT_AEQCTL_MSIX_INDX_SHIFT) | 613 (qv_info->itr_idx << 614 I40E_PFINT_AEQCTL_ITR_INDX_SHIFT)); 615 616 wr32(hw, I40E_PFINT_AEQCTL, reg); 617 } 618 } 619 /* Mitigate sync problems with iwarp VF driver */ 620 i40e_flush(hw); 621 return 0; 622 err: 623 kfree(ldev->qvlist_info); 624 ldev->qvlist_info = NULL; 625 return -EINVAL; 626 } 627 628 /** 629 * i40e_client_request_reset 630 * @ldev: pointer to L2 context. 631 * @client: Client pointer. 632 * @reset_level: reset level 633 **/ 634 static void i40e_client_request_reset(struct i40e_info *ldev, 635 struct i40e_client *client, 636 u32 reset_level) 637 { 638 struct i40e_pf *pf = ldev->pf; 639 640 switch (reset_level) { 641 case I40E_CLIENT_RESET_LEVEL_PF: 642 set_bit(__I40E_PF_RESET_REQUESTED, pf->state); 643 break; 644 case I40E_CLIENT_RESET_LEVEL_CORE: 645 set_bit(__I40E_PF_RESET_REQUESTED, pf->state); 646 break; 647 default: 648 dev_warn(&pf->pdev->dev, 649 "Client for PF id %d requested an unsupported reset: %d.\n", 650 pf->hw.pf_id, reset_level); 651 break; 652 } 653 654 i40e_service_event_schedule(pf); 655 } 656 657 /** 658 * i40e_client_update_vsi_ctxt 659 * @ldev: pointer to L2 context. 660 * @client: Client pointer. 661 * @is_vf: if this for the VF 662 * @vf_id: if is_vf true this carries the vf_id 663 * @flag: Any device level setting that needs to be done for PE 664 * @valid_flag: Bits in this match up and enable changing of flag bits 665 * 666 * Return 0 on success or < 0 on error 667 **/ 668 static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev, 669 struct i40e_client *client, 670 bool is_vf, u32 vf_id, 671 u32 flag, u32 valid_flag) 672 { 673 struct i40e_pf *pf = ldev->pf; 674 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 675 struct i40e_vsi_context ctxt; 676 bool update = true; 677 int err; 678 679 /* TODO: for now do not allow setting VF's VSI setting */ 680 if (is_vf) 681 return -EINVAL; 682 683 ctxt.seid = pf->main_vsi_seid; 684 ctxt.pf_num = pf->hw.pf_id; 685 err = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL); 686 ctxt.flags = I40E_AQ_VSI_TYPE_PF; 687 if (err) { 688 dev_info(&pf->pdev->dev, 689 "couldn't get PF vsi config, err %pe aq_err %s\n", 690 ERR_PTR(err), 691 i40e_aq_str(&pf->hw, 692 pf->hw.aq.asq_last_status)); 693 return -ENOENT; 694 } 695 696 if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE) && 697 (flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE)) { 698 ctxt.info.valid_sections = 699 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); 700 ctxt.info.queueing_opt_flags |= I40E_AQ_VSI_QUE_OPT_TCP_ENA; 701 } else if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE) && 702 !(flag & I40E_CLIENT_VSI_FLAG_TCP_ENABLE)) { 703 ctxt.info.valid_sections = 704 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID); 705 ctxt.info.queueing_opt_flags &= ~I40E_AQ_VSI_QUE_OPT_TCP_ENA; 706 } else { 707 update = false; 708 dev_warn(&pf->pdev->dev, 709 "Client for PF id %d request an unsupported Config: %x.\n", 710 pf->hw.pf_id, flag); 711 } 712 713 if (update) { 714 err = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL); 715 if (err) { 716 dev_info(&pf->pdev->dev, 717 "update VSI ctxt for PE failed, err %pe aq_err %s\n", 718 ERR_PTR(err), 719 i40e_aq_str(&pf->hw, 720 pf->hw.aq.asq_last_status)); 721 } 722 } 723 return err; 724 } 725 726 void i40e_client_device_register(struct i40e_info *ldev, struct i40e_client *client) 727 { 728 struct i40e_pf *pf = ldev->pf; 729 730 pf->cinst->client = client; 731 set_bit(__I40E_CLIENT_SERVICE_REQUESTED, pf->state); 732 i40e_service_event_schedule(pf); 733 } 734 EXPORT_SYMBOL_GPL(i40e_client_device_register); 735 736 void i40e_client_device_unregister(struct i40e_info *ldev) 737 { 738 struct i40e_pf *pf = ldev->pf; 739 struct i40e_client_instance *cdev = pf->cinst; 740 741 if (!cdev) 742 return; 743 744 while (test_and_set_bit(__I40E_SERVICE_SCHED, pf->state)) 745 usleep_range(500, 1000); 746 747 if (test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) { 748 cdev->client->ops->close(&cdev->lan_info, cdev->client, false); 749 clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state); 750 i40e_client_release_qvlist(&cdev->lan_info); 751 } 752 753 pf->cinst->client = NULL; 754 clear_bit(__I40E_SERVICE_SCHED, pf->state); 755 } 756 EXPORT_SYMBOL_GPL(i40e_client_device_unregister); 757