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