1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic qlcnic NIC Driver 4 * Copyright (c) 2009-2013 QLogic Corporation 5 */ 6 7 #include <linux/types.h> 8 9 #include "qlcnic_sriov.h" 10 #include "qlcnic.h" 11 #include "qlcnic_83xx_hw.h" 12 13 #define QLC_BC_COMMAND 0 14 #define QLC_BC_RESPONSE 1 15 16 #define QLC_MBOX_RESP_TIMEOUT (10 * HZ) 17 #define QLC_MBOX_CH_FREE_TIMEOUT (10 * HZ) 18 19 #define QLC_BC_MSG 0 20 #define QLC_BC_CFREE 1 21 #define QLC_BC_FLR 2 22 #define QLC_BC_HDR_SZ 16 23 #define QLC_BC_PAYLOAD_SZ (1024 - QLC_BC_HDR_SZ) 24 25 #define QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF 2048 26 #define QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF 512 27 28 #define QLC_83XX_VF_RESET_FAIL_THRESH 8 29 #define QLC_BC_CMD_MAX_RETRY_CNT 5 30 31 static void qlcnic_sriov_handle_async_issue_cmd(struct work_struct *work); 32 static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *); 33 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32); 34 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *); 35 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *); 36 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *); 37 static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *, 38 struct qlcnic_cmd_args *); 39 static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *, u8); 40 static void qlcnic_sriov_process_bc_cmd(struct work_struct *); 41 static int qlcnic_sriov_vf_shutdown(struct pci_dev *); 42 static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *); 43 static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *, 44 struct qlcnic_cmd_args *); 45 46 static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = { 47 .read_crb = qlcnic_83xx_read_crb, 48 .write_crb = qlcnic_83xx_write_crb, 49 .read_reg = qlcnic_83xx_rd_reg_indirect, 50 .write_reg = qlcnic_83xx_wrt_reg_indirect, 51 .get_mac_address = qlcnic_83xx_get_mac_address, 52 .setup_intr = qlcnic_83xx_setup_intr, 53 .alloc_mbx_args = qlcnic_83xx_alloc_mbx_args, 54 .mbx_cmd = qlcnic_sriov_issue_cmd, 55 .get_func_no = qlcnic_83xx_get_func_no, 56 .api_lock = qlcnic_83xx_cam_lock, 57 .api_unlock = qlcnic_83xx_cam_unlock, 58 .process_lb_rcv_ring_diag = qlcnic_83xx_process_rcv_ring_diag, 59 .create_rx_ctx = qlcnic_83xx_create_rx_ctx, 60 .create_tx_ctx = qlcnic_83xx_create_tx_ctx, 61 .del_rx_ctx = qlcnic_83xx_del_rx_ctx, 62 .del_tx_ctx = qlcnic_83xx_del_tx_ctx, 63 .setup_link_event = qlcnic_83xx_setup_link_event, 64 .get_nic_info = qlcnic_83xx_get_nic_info, 65 .get_pci_info = qlcnic_83xx_get_pci_info, 66 .set_nic_info = qlcnic_83xx_set_nic_info, 67 .change_macvlan = qlcnic_83xx_sre_macaddr_change, 68 .napi_enable = qlcnic_83xx_napi_enable, 69 .napi_disable = qlcnic_83xx_napi_disable, 70 .config_intr_coal = qlcnic_83xx_config_intr_coal, 71 .config_rss = qlcnic_83xx_config_rss, 72 .config_hw_lro = qlcnic_83xx_config_hw_lro, 73 .config_promisc_mode = qlcnic_83xx_nic_set_promisc, 74 .change_l2_filter = qlcnic_83xx_change_l2_filter, 75 .get_board_info = qlcnic_83xx_get_port_info, 76 .free_mac_list = qlcnic_sriov_vf_free_mac_list, 77 .enable_sds_intr = qlcnic_83xx_enable_sds_intr, 78 .disable_sds_intr = qlcnic_83xx_disable_sds_intr, 79 .encap_rx_offload = qlcnic_83xx_encap_rx_offload, 80 .encap_tx_offload = qlcnic_83xx_encap_tx_offload, 81 }; 82 83 static struct qlcnic_nic_template qlcnic_sriov_vf_ops = { 84 .config_bridged_mode = qlcnic_config_bridged_mode, 85 .config_led = qlcnic_config_led, 86 .cancel_idc_work = qlcnic_sriov_vf_cancel_fw_work, 87 .napi_add = qlcnic_83xx_napi_add, 88 .napi_del = qlcnic_83xx_napi_del, 89 .shutdown = qlcnic_sriov_vf_shutdown, 90 .resume = qlcnic_sriov_vf_resume, 91 .config_ipaddr = qlcnic_83xx_config_ipaddr, 92 .clear_legacy_intr = qlcnic_83xx_clear_legacy_intr, 93 }; 94 95 static const struct qlcnic_mailbox_metadata qlcnic_sriov_bc_mbx_tbl[] = { 96 {QLCNIC_BC_CMD_CHANNEL_INIT, 2, 2}, 97 {QLCNIC_BC_CMD_CHANNEL_TERM, 2, 2}, 98 {QLCNIC_BC_CMD_GET_ACL, 3, 14}, 99 {QLCNIC_BC_CMD_CFG_GUEST_VLAN, 2, 2}, 100 }; 101 102 static inline bool qlcnic_sriov_bc_msg_check(u32 val) 103 { 104 return (val & (1 << QLC_BC_MSG)) ? true : false; 105 } 106 107 static inline bool qlcnic_sriov_channel_free_check(u32 val) 108 { 109 return (val & (1 << QLC_BC_CFREE)) ? true : false; 110 } 111 112 static inline bool qlcnic_sriov_flr_check(u32 val) 113 { 114 return (val & (1 << QLC_BC_FLR)) ? true : false; 115 } 116 117 static inline u8 qlcnic_sriov_target_func_id(u32 val) 118 { 119 return (val >> 4) & 0xff; 120 } 121 122 static int qlcnic_sriov_virtid_fn(struct qlcnic_adapter *adapter, int vf_id) 123 { 124 struct pci_dev *dev = adapter->pdev; 125 int pos; 126 u16 stride, offset; 127 128 if (qlcnic_sriov_vf_check(adapter)) 129 return 0; 130 131 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); 132 if (!pos) 133 return 0; 134 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset); 135 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride); 136 137 return (dev->devfn + offset + stride * vf_id) & 0xff; 138 } 139 140 int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs) 141 { 142 struct qlcnic_sriov *sriov; 143 struct qlcnic_back_channel *bc; 144 struct workqueue_struct *wq; 145 struct qlcnic_vport *vp; 146 struct qlcnic_vf_info *vf; 147 int err, i; 148 149 if (!qlcnic_sriov_enable_check(adapter)) 150 return -EIO; 151 152 sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL); 153 if (!sriov) 154 return -ENOMEM; 155 156 adapter->ahw->sriov = sriov; 157 sriov->num_vfs = num_vfs; 158 bc = &sriov->bc; 159 sriov->vf_info = kcalloc(num_vfs, sizeof(struct qlcnic_vf_info), 160 GFP_KERNEL); 161 if (!sriov->vf_info) { 162 err = -ENOMEM; 163 goto qlcnic_free_sriov; 164 } 165 166 wq = create_singlethread_workqueue("bc-trans"); 167 if (wq == NULL) { 168 err = -ENOMEM; 169 dev_err(&adapter->pdev->dev, 170 "Cannot create bc-trans workqueue\n"); 171 goto qlcnic_free_vf_info; 172 } 173 174 bc->bc_trans_wq = wq; 175 176 wq = create_singlethread_workqueue("async"); 177 if (wq == NULL) { 178 err = -ENOMEM; 179 dev_err(&adapter->pdev->dev, "Cannot create async workqueue\n"); 180 goto qlcnic_destroy_trans_wq; 181 } 182 183 bc->bc_async_wq = wq; 184 INIT_LIST_HEAD(&bc->async_cmd_list); 185 INIT_WORK(&bc->vf_async_work, qlcnic_sriov_handle_async_issue_cmd); 186 spin_lock_init(&bc->queue_lock); 187 bc->adapter = adapter; 188 189 for (i = 0; i < num_vfs; i++) { 190 vf = &sriov->vf_info[i]; 191 vf->adapter = adapter; 192 vf->pci_func = qlcnic_sriov_virtid_fn(adapter, i); 193 mutex_init(&vf->send_cmd_lock); 194 spin_lock_init(&vf->vlan_list_lock); 195 INIT_LIST_HEAD(&vf->rcv_act.wait_list); 196 INIT_LIST_HEAD(&vf->rcv_pend.wait_list); 197 spin_lock_init(&vf->rcv_act.lock); 198 spin_lock_init(&vf->rcv_pend.lock); 199 init_completion(&vf->ch_free_cmpl); 200 201 INIT_WORK(&vf->trans_work, qlcnic_sriov_process_bc_cmd); 202 203 if (qlcnic_sriov_pf_check(adapter)) { 204 vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL); 205 if (!vp) { 206 err = -ENOMEM; 207 goto qlcnic_destroy_async_wq; 208 } 209 sriov->vf_info[i].vp = vp; 210 vp->vlan_mode = QLC_GUEST_VLAN_MODE; 211 vp->max_tx_bw = MAX_BW; 212 vp->min_tx_bw = MIN_BW; 213 vp->spoofchk = false; 214 eth_random_addr(vp->mac); 215 dev_info(&adapter->pdev->dev, 216 "MAC Address %pM is configured for VF %d\n", 217 vp->mac, i); 218 } 219 } 220 221 return 0; 222 223 qlcnic_destroy_async_wq: 224 destroy_workqueue(bc->bc_async_wq); 225 226 qlcnic_destroy_trans_wq: 227 destroy_workqueue(bc->bc_trans_wq); 228 229 qlcnic_free_vf_info: 230 kfree(sriov->vf_info); 231 232 qlcnic_free_sriov: 233 kfree(adapter->ahw->sriov); 234 return err; 235 } 236 237 void qlcnic_sriov_cleanup_list(struct qlcnic_trans_list *t_list) 238 { 239 struct qlcnic_bc_trans *trans; 240 struct qlcnic_cmd_args cmd; 241 unsigned long flags; 242 243 spin_lock_irqsave(&t_list->lock, flags); 244 245 while (!list_empty(&t_list->wait_list)) { 246 trans = list_first_entry(&t_list->wait_list, 247 struct qlcnic_bc_trans, list); 248 list_del(&trans->list); 249 t_list->count--; 250 cmd.req.arg = (u32 *)trans->req_pay; 251 cmd.rsp.arg = (u32 *)trans->rsp_pay; 252 qlcnic_free_mbx_args(&cmd); 253 qlcnic_sriov_cleanup_transaction(trans); 254 } 255 256 spin_unlock_irqrestore(&t_list->lock, flags); 257 } 258 259 void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter) 260 { 261 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 262 struct qlcnic_back_channel *bc = &sriov->bc; 263 struct qlcnic_vf_info *vf; 264 int i; 265 266 if (!qlcnic_sriov_enable_check(adapter)) 267 return; 268 269 qlcnic_sriov_cleanup_async_list(bc); 270 destroy_workqueue(bc->bc_async_wq); 271 272 for (i = 0; i < sriov->num_vfs; i++) { 273 vf = &sriov->vf_info[i]; 274 qlcnic_sriov_cleanup_list(&vf->rcv_pend); 275 cancel_work_sync(&vf->trans_work); 276 qlcnic_sriov_cleanup_list(&vf->rcv_act); 277 } 278 279 destroy_workqueue(bc->bc_trans_wq); 280 281 for (i = 0; i < sriov->num_vfs; i++) 282 kfree(sriov->vf_info[i].vp); 283 284 kfree(sriov->vf_info); 285 kfree(adapter->ahw->sriov); 286 } 287 288 static void qlcnic_sriov_vf_cleanup(struct qlcnic_adapter *adapter) 289 { 290 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 291 qlcnic_sriov_cfg_bc_intr(adapter, 0); 292 __qlcnic_sriov_cleanup(adapter); 293 } 294 295 void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter) 296 { 297 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state)) 298 return; 299 300 qlcnic_sriov_free_vlans(adapter); 301 302 if (qlcnic_sriov_pf_check(adapter)) 303 qlcnic_sriov_pf_cleanup(adapter); 304 305 if (qlcnic_sriov_vf_check(adapter)) 306 qlcnic_sriov_vf_cleanup(adapter); 307 } 308 309 static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr, 310 u32 *pay, u8 pci_func, u8 size) 311 { 312 struct qlcnic_hardware_context *ahw = adapter->ahw; 313 struct qlcnic_mailbox *mbx = ahw->mailbox; 314 struct qlcnic_cmd_args cmd; 315 unsigned long timeout; 316 int err; 317 318 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args)); 319 cmd.hdr = hdr; 320 cmd.pay = pay; 321 cmd.pay_size = size; 322 cmd.func_num = pci_func; 323 cmd.op_type = QLC_83XX_MBX_POST_BC_OP; 324 cmd.cmd_op = ((struct qlcnic_bc_hdr *)hdr)->cmd_op; 325 326 err = mbx->ops->enqueue_cmd(adapter, &cmd, &timeout); 327 if (err) { 328 dev_err(&adapter->pdev->dev, 329 "%s: Mailbox not available, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n", 330 __func__, cmd.cmd_op, cmd.type, ahw->pci_func, 331 ahw->op_mode); 332 return err; 333 } 334 335 if (!wait_for_completion_timeout(&cmd.completion, timeout)) { 336 dev_err(&adapter->pdev->dev, 337 "%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n", 338 __func__, cmd.cmd_op, cmd.type, ahw->pci_func, 339 ahw->op_mode); 340 flush_workqueue(mbx->work_q); 341 } 342 343 return cmd.rsp_opcode; 344 } 345 346 static void qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter *adapter) 347 { 348 adapter->num_rxd = QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF; 349 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; 350 adapter->num_jumbo_rxd = QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF; 351 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 352 adapter->num_txd = MAX_CMD_DESCRIPTORS; 353 adapter->max_rds_rings = MAX_RDS_RINGS; 354 } 355 356 int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *adapter, 357 struct qlcnic_info *npar_info, u16 vport_id) 358 { 359 struct device *dev = &adapter->pdev->dev; 360 struct qlcnic_cmd_args cmd; 361 int err; 362 u32 status; 363 364 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO); 365 if (err) 366 return err; 367 368 cmd.req.arg[1] = vport_id << 16 | 0x1; 369 err = qlcnic_issue_cmd(adapter, &cmd); 370 if (err) { 371 dev_err(&adapter->pdev->dev, 372 "Failed to get vport info, err=%d\n", err); 373 qlcnic_free_mbx_args(&cmd); 374 return err; 375 } 376 377 status = cmd.rsp.arg[2] & 0xffff; 378 if (status & BIT_0) 379 npar_info->min_tx_bw = MSW(cmd.rsp.arg[2]); 380 if (status & BIT_1) 381 npar_info->max_tx_bw = LSW(cmd.rsp.arg[3]); 382 if (status & BIT_2) 383 npar_info->max_tx_ques = MSW(cmd.rsp.arg[3]); 384 if (status & BIT_3) 385 npar_info->max_tx_mac_filters = LSW(cmd.rsp.arg[4]); 386 if (status & BIT_4) 387 npar_info->max_rx_mcast_mac_filters = MSW(cmd.rsp.arg[4]); 388 if (status & BIT_5) 389 npar_info->max_rx_ucast_mac_filters = LSW(cmd.rsp.arg[5]); 390 if (status & BIT_6) 391 npar_info->max_rx_ip_addr = MSW(cmd.rsp.arg[5]); 392 if (status & BIT_7) 393 npar_info->max_rx_lro_flow = LSW(cmd.rsp.arg[6]); 394 if (status & BIT_8) 395 npar_info->max_rx_status_rings = MSW(cmd.rsp.arg[6]); 396 if (status & BIT_9) 397 npar_info->max_rx_buf_rings = LSW(cmd.rsp.arg[7]); 398 399 npar_info->max_rx_ques = MSW(cmd.rsp.arg[7]); 400 npar_info->max_tx_vlan_keys = LSW(cmd.rsp.arg[8]); 401 npar_info->max_local_ipv6_addrs = MSW(cmd.rsp.arg[8]); 402 npar_info->max_remote_ipv6_addrs = LSW(cmd.rsp.arg[9]); 403 404 dev_info(dev, "\n\tmin_tx_bw: %d, max_tx_bw: %d max_tx_ques: %d,\n" 405 "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n" 406 "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n" 407 "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n" 408 "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n" 409 "\tlocal_ipv6_addr: %d, remote_ipv6_addr: %d\n", 410 npar_info->min_tx_bw, npar_info->max_tx_bw, 411 npar_info->max_tx_ques, npar_info->max_tx_mac_filters, 412 npar_info->max_rx_mcast_mac_filters, 413 npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr, 414 npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings, 415 npar_info->max_rx_buf_rings, npar_info->max_rx_ques, 416 npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs, 417 npar_info->max_remote_ipv6_addrs); 418 419 qlcnic_free_mbx_args(&cmd); 420 return err; 421 } 422 423 static int qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter *adapter, 424 struct qlcnic_cmd_args *cmd) 425 { 426 adapter->rx_pvid = MSW(cmd->rsp.arg[1]) & 0xffff; 427 adapter->flags &= ~QLCNIC_TAGGING_ENABLED; 428 return 0; 429 } 430 431 static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, 432 struct qlcnic_cmd_args *cmd) 433 { 434 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 435 int i, num_vlans, ret; 436 u16 *vlans; 437 438 if (sriov->allowed_vlans) 439 return 0; 440 441 sriov->any_vlan = cmd->rsp.arg[2] & 0xf; 442 sriov->num_allowed_vlans = cmd->rsp.arg[2] >> 16; 443 dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n", 444 sriov->num_allowed_vlans); 445 446 ret = qlcnic_sriov_alloc_vlans(adapter); 447 if (ret) 448 return ret; 449 450 if (!sriov->any_vlan) 451 return 0; 452 453 num_vlans = sriov->num_allowed_vlans; 454 sriov->allowed_vlans = kcalloc(num_vlans, sizeof(u16), GFP_KERNEL); 455 if (!sriov->allowed_vlans) 456 return -ENOMEM; 457 458 vlans = (u16 *)&cmd->rsp.arg[3]; 459 for (i = 0; i < num_vlans; i++) 460 sriov->allowed_vlans[i] = vlans[i]; 461 462 return 0; 463 } 464 465 static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter) 466 { 467 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 468 struct qlcnic_cmd_args cmd; 469 int ret = 0; 470 471 memset(&cmd, 0, sizeof(cmd)); 472 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, QLCNIC_BC_CMD_GET_ACL); 473 if (ret) 474 return ret; 475 476 ret = qlcnic_issue_cmd(adapter, &cmd); 477 if (ret) { 478 dev_err(&adapter->pdev->dev, "Failed to get ACL, err=%d\n", 479 ret); 480 } else { 481 sriov->vlan_mode = cmd.rsp.arg[1] & 0x3; 482 switch (sriov->vlan_mode) { 483 case QLC_GUEST_VLAN_MODE: 484 ret = qlcnic_sriov_set_guest_vlan_mode(adapter, &cmd); 485 break; 486 case QLC_PVID_MODE: 487 ret = qlcnic_sriov_set_pvid_mode(adapter, &cmd); 488 break; 489 } 490 } 491 492 qlcnic_free_mbx_args(&cmd); 493 return ret; 494 } 495 496 static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter) 497 { 498 struct qlcnic_hardware_context *ahw = adapter->ahw; 499 struct qlcnic_info nic_info; 500 int err; 501 502 err = qlcnic_sriov_get_vf_vport_info(adapter, &nic_info, 0); 503 if (err) 504 return err; 505 506 ahw->max_mc_count = nic_info.max_rx_mcast_mac_filters; 507 508 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func); 509 if (err) 510 return -EIO; 511 512 if (qlcnic_83xx_get_port_info(adapter)) 513 return -EIO; 514 515 qlcnic_sriov_vf_cfg_buff_desc(adapter); 516 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; 517 dev_info(&adapter->pdev->dev, "HAL Version: %d\n", 518 adapter->ahw->fw_hal_version); 519 520 ahw->physical_port = (u8) nic_info.phys_port; 521 ahw->switch_mode = nic_info.switch_mode; 522 ahw->max_mtu = nic_info.max_mtu; 523 ahw->op_mode = nic_info.op_mode; 524 ahw->capabilities = nic_info.capabilities; 525 return 0; 526 } 527 528 static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter) 529 { 530 int err; 531 532 adapter->flags |= QLCNIC_VLAN_FILTERING; 533 adapter->ahw->total_nic_func = 1; 534 INIT_LIST_HEAD(&adapter->vf_mc_list); 535 if (!qlcnic_use_msi_x && !!qlcnic_use_msi) 536 dev_warn(&adapter->pdev->dev, 537 "Device does not support MSI interrupts\n"); 538 539 /* compute and set default and max tx/sds rings */ 540 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING); 541 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING); 542 543 err = qlcnic_setup_intr(adapter); 544 if (err) { 545 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n"); 546 goto err_out_disable_msi; 547 } 548 549 err = qlcnic_83xx_setup_mbx_intr(adapter); 550 if (err) 551 goto err_out_disable_msi; 552 553 err = qlcnic_sriov_init(adapter, 1); 554 if (err) 555 goto err_out_disable_mbx_intr; 556 557 err = qlcnic_sriov_cfg_bc_intr(adapter, 1); 558 if (err) 559 goto err_out_cleanup_sriov; 560 561 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT); 562 if (err) 563 goto err_out_disable_bc_intr; 564 565 err = qlcnic_sriov_vf_init_driver(adapter); 566 if (err) 567 goto err_out_send_channel_term; 568 569 err = qlcnic_sriov_get_vf_acl(adapter); 570 if (err) 571 goto err_out_send_channel_term; 572 573 err = qlcnic_setup_netdev(adapter, adapter->netdev); 574 if (err) 575 goto err_out_send_channel_term; 576 577 pci_set_drvdata(adapter->pdev, adapter); 578 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 579 adapter->netdev->name); 580 581 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state, 582 adapter->ahw->idc.delay); 583 return 0; 584 585 err_out_send_channel_term: 586 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 587 588 err_out_disable_bc_intr: 589 qlcnic_sriov_cfg_bc_intr(adapter, 0); 590 591 err_out_cleanup_sriov: 592 __qlcnic_sriov_cleanup(adapter); 593 594 err_out_disable_mbx_intr: 595 qlcnic_83xx_free_mbx_intr(adapter); 596 597 err_out_disable_msi: 598 qlcnic_teardown_intr(adapter); 599 return err; 600 } 601 602 static int qlcnic_sriov_check_dev_ready(struct qlcnic_adapter *adapter) 603 { 604 u32 state; 605 606 do { 607 msleep(20); 608 if (++adapter->fw_fail_cnt > QLC_BC_CMD_MAX_RETRY_CNT) 609 return -EIO; 610 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 611 } while (state != QLC_83XX_IDC_DEV_READY); 612 613 return 0; 614 } 615 616 int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter) 617 { 618 struct qlcnic_hardware_context *ahw = adapter->ahw; 619 int err; 620 621 set_bit(QLC_83XX_MODULE_LOADED, &ahw->idc.status); 622 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; 623 ahw->reset_context = 0; 624 adapter->fw_fail_cnt = 0; 625 ahw->msix_supported = 1; 626 adapter->need_fw_reset = 0; 627 adapter->flags |= QLCNIC_TX_INTR_SHARED; 628 629 err = qlcnic_sriov_check_dev_ready(adapter); 630 if (err) 631 return err; 632 633 err = qlcnic_sriov_setup_vf(adapter); 634 if (err) 635 return err; 636 637 if (qlcnic_read_mac_addr(adapter)) 638 dev_warn(&adapter->pdev->dev, "failed to read mac addr\n"); 639 640 INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work); 641 642 clear_bit(__QLCNIC_RESETTING, &adapter->state); 643 return 0; 644 } 645 646 void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *adapter) 647 { 648 struct qlcnic_hardware_context *ahw = adapter->ahw; 649 650 ahw->op_mode = QLCNIC_SRIOV_VF_FUNC; 651 dev_info(&adapter->pdev->dev, 652 "HAL Version: %d Non Privileged SRIOV function\n", 653 ahw->fw_hal_version); 654 adapter->nic_ops = &qlcnic_sriov_vf_ops; 655 set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state); 656 return; 657 } 658 659 void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *ahw) 660 { 661 ahw->hw_ops = &qlcnic_sriov_vf_hw_ops; 662 ahw->reg_tbl = (u32 *)qlcnic_83xx_reg_tbl; 663 ahw->ext_reg_tbl = (u32 *)qlcnic_83xx_ext_reg_tbl; 664 } 665 666 static u32 qlcnic_sriov_get_bc_paysize(u32 real_pay_size, u8 curr_frag) 667 { 668 u32 pay_size; 669 670 pay_size = real_pay_size / ((curr_frag + 1) * QLC_BC_PAYLOAD_SZ); 671 672 if (pay_size) 673 pay_size = QLC_BC_PAYLOAD_SZ; 674 else 675 pay_size = real_pay_size % QLC_BC_PAYLOAD_SZ; 676 677 return pay_size; 678 } 679 680 int qlcnic_sriov_func_to_index(struct qlcnic_adapter *adapter, u8 pci_func) 681 { 682 struct qlcnic_vf_info *vf_info = adapter->ahw->sriov->vf_info; 683 u8 i; 684 685 if (qlcnic_sriov_vf_check(adapter)) 686 return 0; 687 688 for (i = 0; i < adapter->ahw->sriov->num_vfs; i++) { 689 if (vf_info[i].pci_func == pci_func) 690 return i; 691 } 692 693 return -EINVAL; 694 } 695 696 static inline int qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans **trans) 697 { 698 *trans = kzalloc(sizeof(struct qlcnic_bc_trans), GFP_ATOMIC); 699 if (!*trans) 700 return -ENOMEM; 701 702 init_completion(&(*trans)->resp_cmpl); 703 return 0; 704 } 705 706 static inline int qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr **hdr, 707 u32 size) 708 { 709 *hdr = kcalloc(size, sizeof(struct qlcnic_bc_hdr), GFP_ATOMIC); 710 if (!*hdr) 711 return -ENOMEM; 712 713 return 0; 714 } 715 716 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *mbx, u32 type) 717 { 718 const struct qlcnic_mailbox_metadata *mbx_tbl; 719 int i, size; 720 721 mbx_tbl = qlcnic_sriov_bc_mbx_tbl; 722 size = ARRAY_SIZE(qlcnic_sriov_bc_mbx_tbl); 723 724 for (i = 0; i < size; i++) { 725 if (type == mbx_tbl[i].cmd) { 726 mbx->op_type = QLC_BC_CMD; 727 mbx->req.num = mbx_tbl[i].in_args; 728 mbx->rsp.num = mbx_tbl[i].out_args; 729 mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32), 730 GFP_ATOMIC); 731 if (!mbx->req.arg) 732 return -ENOMEM; 733 mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32), 734 GFP_ATOMIC); 735 if (!mbx->rsp.arg) { 736 kfree(mbx->req.arg); 737 mbx->req.arg = NULL; 738 return -ENOMEM; 739 } 740 mbx->req.arg[0] = (type | (mbx->req.num << 16) | 741 (3 << 29)); 742 mbx->rsp.arg[0] = (type & 0xffff) | mbx->rsp.num << 16; 743 return 0; 744 } 745 } 746 return -EINVAL; 747 } 748 749 static int qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans *trans, 750 struct qlcnic_cmd_args *cmd, 751 u16 seq, u8 msg_type) 752 { 753 struct qlcnic_bc_hdr *hdr; 754 int i; 755 u32 num_regs, bc_pay_sz; 756 u16 remainder; 757 u8 cmd_op, num_frags, t_num_frags; 758 759 bc_pay_sz = QLC_BC_PAYLOAD_SZ; 760 if (msg_type == QLC_BC_COMMAND) { 761 trans->req_pay = (struct qlcnic_bc_payload *)cmd->req.arg; 762 trans->rsp_pay = (struct qlcnic_bc_payload *)cmd->rsp.arg; 763 num_regs = cmd->req.num; 764 trans->req_pay_size = (num_regs * 4); 765 num_regs = cmd->rsp.num; 766 trans->rsp_pay_size = (num_regs * 4); 767 cmd_op = cmd->req.arg[0] & 0xff; 768 remainder = (trans->req_pay_size) % (bc_pay_sz); 769 num_frags = (trans->req_pay_size) / (bc_pay_sz); 770 if (remainder) 771 num_frags++; 772 t_num_frags = num_frags; 773 if (qlcnic_sriov_alloc_bc_msg(&trans->req_hdr, num_frags)) 774 return -ENOMEM; 775 remainder = (trans->rsp_pay_size) % (bc_pay_sz); 776 num_frags = (trans->rsp_pay_size) / (bc_pay_sz); 777 if (remainder) 778 num_frags++; 779 if (qlcnic_sriov_alloc_bc_msg(&trans->rsp_hdr, num_frags)) 780 return -ENOMEM; 781 num_frags = t_num_frags; 782 hdr = trans->req_hdr; 783 } else { 784 cmd->req.arg = (u32 *)trans->req_pay; 785 cmd->rsp.arg = (u32 *)trans->rsp_pay; 786 cmd_op = cmd->req.arg[0] & 0xff; 787 cmd->cmd_op = cmd_op; 788 remainder = (trans->rsp_pay_size) % (bc_pay_sz); 789 num_frags = (trans->rsp_pay_size) / (bc_pay_sz); 790 if (remainder) 791 num_frags++; 792 cmd->req.num = trans->req_pay_size / 4; 793 cmd->rsp.num = trans->rsp_pay_size / 4; 794 hdr = trans->rsp_hdr; 795 cmd->op_type = trans->req_hdr->op_type; 796 } 797 798 trans->trans_id = seq; 799 trans->cmd_id = cmd_op; 800 for (i = 0; i < num_frags; i++) { 801 hdr[i].version = 2; 802 hdr[i].msg_type = msg_type; 803 hdr[i].op_type = cmd->op_type; 804 hdr[i].num_cmds = 1; 805 hdr[i].num_frags = num_frags; 806 hdr[i].frag_num = i + 1; 807 hdr[i].cmd_op = cmd_op; 808 hdr[i].seq_id = seq; 809 } 810 return 0; 811 } 812 813 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *trans) 814 { 815 if (!trans) 816 return; 817 kfree(trans->req_hdr); 818 kfree(trans->rsp_hdr); 819 kfree(trans); 820 } 821 822 static int qlcnic_sriov_clear_trans(struct qlcnic_vf_info *vf, 823 struct qlcnic_bc_trans *trans, u8 type) 824 { 825 struct qlcnic_trans_list *t_list; 826 unsigned long flags; 827 int ret = 0; 828 829 if (type == QLC_BC_RESPONSE) { 830 t_list = &vf->rcv_act; 831 spin_lock_irqsave(&t_list->lock, flags); 832 t_list->count--; 833 list_del(&trans->list); 834 if (t_list->count > 0) 835 ret = 1; 836 spin_unlock_irqrestore(&t_list->lock, flags); 837 } 838 if (type == QLC_BC_COMMAND) { 839 while (test_and_set_bit(QLC_BC_VF_SEND, &vf->state)) 840 msleep(100); 841 vf->send_cmd = NULL; 842 clear_bit(QLC_BC_VF_SEND, &vf->state); 843 } 844 return ret; 845 } 846 847 static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov, 848 struct qlcnic_vf_info *vf, 849 work_func_t func) 850 { 851 if (test_bit(QLC_BC_VF_FLR, &vf->state) || 852 vf->adapter->need_fw_reset) 853 return; 854 855 queue_work(sriov->bc.bc_trans_wq, &vf->trans_work); 856 } 857 858 static inline void qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans *trans) 859 { 860 struct completion *cmpl = &trans->resp_cmpl; 861 862 if (wait_for_completion_timeout(cmpl, QLC_MBOX_RESP_TIMEOUT)) 863 trans->trans_state = QLC_END; 864 else 865 trans->trans_state = QLC_ABORT; 866 867 return; 868 } 869 870 static void qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans *trans, 871 u8 type) 872 { 873 if (type == QLC_BC_RESPONSE) { 874 trans->curr_rsp_frag++; 875 if (trans->curr_rsp_frag < trans->rsp_hdr->num_frags) 876 trans->trans_state = QLC_INIT; 877 else 878 trans->trans_state = QLC_END; 879 } else { 880 trans->curr_req_frag++; 881 if (trans->curr_req_frag < trans->req_hdr->num_frags) 882 trans->trans_state = QLC_INIT; 883 else 884 trans->trans_state = QLC_WAIT_FOR_RESP; 885 } 886 } 887 888 static void qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans *trans, 889 u8 type) 890 { 891 struct qlcnic_vf_info *vf = trans->vf; 892 struct completion *cmpl = &vf->ch_free_cmpl; 893 894 if (!wait_for_completion_timeout(cmpl, QLC_MBOX_CH_FREE_TIMEOUT)) { 895 trans->trans_state = QLC_ABORT; 896 return; 897 } 898 899 clear_bit(QLC_BC_VF_CHANNEL, &vf->state); 900 qlcnic_sriov_handle_multi_frags(trans, type); 901 } 902 903 static void qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter *adapter, 904 u32 *hdr, u32 *pay, u32 size) 905 { 906 struct qlcnic_hardware_context *ahw = adapter->ahw; 907 u8 i, max = 2, hdr_size, j; 908 909 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 910 max = (size / sizeof(u32)) + hdr_size; 911 912 for (i = 2, j = 0; j < hdr_size; i++, j++) 913 *(hdr++) = readl(QLCNIC_MBX_FW(ahw, i)); 914 for (; j < max; i++, j++) 915 *(pay++) = readl(QLCNIC_MBX_FW(ahw, i)); 916 } 917 918 static int __qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info *vf) 919 { 920 int ret = -EBUSY; 921 u32 timeout = 10000; 922 923 do { 924 if (!test_and_set_bit(QLC_BC_VF_CHANNEL, &vf->state)) { 925 ret = 0; 926 break; 927 } 928 mdelay(1); 929 } while (--timeout); 930 931 return ret; 932 } 933 934 static int qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans *trans, u8 type) 935 { 936 struct qlcnic_vf_info *vf = trans->vf; 937 u32 pay_size; 938 u32 *hdr, *pay; 939 int ret; 940 u8 pci_func = trans->func_id; 941 942 if (__qlcnic_sriov_issue_bc_post(vf)) 943 return -EBUSY; 944 945 if (type == QLC_BC_COMMAND) { 946 hdr = (u32 *)(trans->req_hdr + trans->curr_req_frag); 947 pay = (u32 *)(trans->req_pay + trans->curr_req_frag); 948 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 949 trans->curr_req_frag); 950 pay_size = (pay_size / sizeof(u32)); 951 } else { 952 hdr = (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag); 953 pay = (u32 *)(trans->rsp_pay + trans->curr_rsp_frag); 954 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size, 955 trans->curr_rsp_frag); 956 pay_size = (pay_size / sizeof(u32)); 957 } 958 959 ret = qlcnic_sriov_post_bc_msg(vf->adapter, hdr, pay, 960 pci_func, pay_size); 961 return ret; 962 } 963 964 static int __qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans *trans, 965 struct qlcnic_vf_info *vf, u8 type) 966 { 967 bool flag = true; 968 int err = -EIO; 969 970 while (flag) { 971 if (test_bit(QLC_BC_VF_FLR, &vf->state) || 972 vf->adapter->need_fw_reset) 973 trans->trans_state = QLC_ABORT; 974 975 switch (trans->trans_state) { 976 case QLC_INIT: 977 trans->trans_state = QLC_WAIT_FOR_CHANNEL_FREE; 978 if (qlcnic_sriov_issue_bc_post(trans, type)) 979 trans->trans_state = QLC_ABORT; 980 break; 981 case QLC_WAIT_FOR_CHANNEL_FREE: 982 qlcnic_sriov_wait_for_channel_free(trans, type); 983 break; 984 case QLC_WAIT_FOR_RESP: 985 qlcnic_sriov_wait_for_resp(trans); 986 break; 987 case QLC_END: 988 err = 0; 989 flag = false; 990 break; 991 case QLC_ABORT: 992 err = -EIO; 993 flag = false; 994 clear_bit(QLC_BC_VF_CHANNEL, &vf->state); 995 break; 996 default: 997 err = -EIO; 998 flag = false; 999 } 1000 } 1001 return err; 1002 } 1003 1004 static int qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter *adapter, 1005 struct qlcnic_bc_trans *trans, int pci_func) 1006 { 1007 struct qlcnic_vf_info *vf; 1008 int err, index = qlcnic_sriov_func_to_index(adapter, pci_func); 1009 1010 if (index < 0) 1011 return -EIO; 1012 1013 vf = &adapter->ahw->sriov->vf_info[index]; 1014 trans->vf = vf; 1015 trans->func_id = pci_func; 1016 1017 if (!test_bit(QLC_BC_VF_STATE, &vf->state)) { 1018 if (qlcnic_sriov_pf_check(adapter)) 1019 return -EIO; 1020 if (qlcnic_sriov_vf_check(adapter) && 1021 trans->cmd_id != QLCNIC_BC_CMD_CHANNEL_INIT) 1022 return -EIO; 1023 } 1024 1025 mutex_lock(&vf->send_cmd_lock); 1026 vf->send_cmd = trans; 1027 err = __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_COMMAND); 1028 qlcnic_sriov_clear_trans(vf, trans, QLC_BC_COMMAND); 1029 mutex_unlock(&vf->send_cmd_lock); 1030 return err; 1031 } 1032 1033 static void __qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter *adapter, 1034 struct qlcnic_bc_trans *trans, 1035 struct qlcnic_cmd_args *cmd) 1036 { 1037 #ifdef CONFIG_QLCNIC_SRIOV 1038 if (qlcnic_sriov_pf_check(adapter)) { 1039 qlcnic_sriov_pf_process_bc_cmd(adapter, trans, cmd); 1040 return; 1041 } 1042 #endif 1043 cmd->rsp.arg[0] |= (0x9 << 25); 1044 return; 1045 } 1046 1047 static void qlcnic_sriov_process_bc_cmd(struct work_struct *work) 1048 { 1049 struct qlcnic_vf_info *vf = container_of(work, struct qlcnic_vf_info, 1050 trans_work); 1051 struct qlcnic_bc_trans *trans = NULL; 1052 struct qlcnic_adapter *adapter = vf->adapter; 1053 struct qlcnic_cmd_args cmd; 1054 u8 req; 1055 1056 if (adapter->need_fw_reset) 1057 return; 1058 1059 if (test_bit(QLC_BC_VF_FLR, &vf->state)) 1060 return; 1061 1062 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args)); 1063 trans = list_first_entry(&vf->rcv_act.wait_list, 1064 struct qlcnic_bc_trans, list); 1065 adapter = vf->adapter; 1066 1067 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, trans->req_hdr->seq_id, 1068 QLC_BC_RESPONSE)) 1069 goto cleanup_trans; 1070 1071 __qlcnic_sriov_process_bc_cmd(adapter, trans, &cmd); 1072 trans->trans_state = QLC_INIT; 1073 __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_RESPONSE); 1074 1075 cleanup_trans: 1076 qlcnic_free_mbx_args(&cmd); 1077 req = qlcnic_sriov_clear_trans(vf, trans, QLC_BC_RESPONSE); 1078 qlcnic_sriov_cleanup_transaction(trans); 1079 if (req) 1080 qlcnic_sriov_schedule_bc_cmd(adapter->ahw->sriov, vf, 1081 qlcnic_sriov_process_bc_cmd); 1082 } 1083 1084 static void qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr *hdr, 1085 struct qlcnic_vf_info *vf) 1086 { 1087 struct qlcnic_bc_trans *trans; 1088 u32 pay_size; 1089 1090 if (test_and_set_bit(QLC_BC_VF_SEND, &vf->state)) 1091 return; 1092 1093 trans = vf->send_cmd; 1094 1095 if (trans == NULL) 1096 goto clear_send; 1097 1098 if (trans->trans_id != hdr->seq_id) 1099 goto clear_send; 1100 1101 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size, 1102 trans->curr_rsp_frag); 1103 qlcnic_sriov_pull_bc_msg(vf->adapter, 1104 (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag), 1105 (u32 *)(trans->rsp_pay + trans->curr_rsp_frag), 1106 pay_size); 1107 if (++trans->curr_rsp_frag < trans->rsp_hdr->num_frags) 1108 goto clear_send; 1109 1110 complete(&trans->resp_cmpl); 1111 1112 clear_send: 1113 clear_bit(QLC_BC_VF_SEND, &vf->state); 1114 } 1115 1116 int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov, 1117 struct qlcnic_vf_info *vf, 1118 struct qlcnic_bc_trans *trans) 1119 { 1120 struct qlcnic_trans_list *t_list = &vf->rcv_act; 1121 1122 t_list->count++; 1123 list_add_tail(&trans->list, &t_list->wait_list); 1124 if (t_list->count == 1) 1125 qlcnic_sriov_schedule_bc_cmd(sriov, vf, 1126 qlcnic_sriov_process_bc_cmd); 1127 return 0; 1128 } 1129 1130 static int qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov, 1131 struct qlcnic_vf_info *vf, 1132 struct qlcnic_bc_trans *trans) 1133 { 1134 struct qlcnic_trans_list *t_list = &vf->rcv_act; 1135 1136 spin_lock(&t_list->lock); 1137 1138 __qlcnic_sriov_add_act_list(sriov, vf, trans); 1139 1140 spin_unlock(&t_list->lock); 1141 return 0; 1142 } 1143 1144 static void qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov *sriov, 1145 struct qlcnic_vf_info *vf, 1146 struct qlcnic_bc_hdr *hdr) 1147 { 1148 struct qlcnic_bc_trans *trans = NULL; 1149 struct list_head *node; 1150 u32 pay_size, curr_frag; 1151 u8 found = 0, active = 0; 1152 1153 spin_lock(&vf->rcv_pend.lock); 1154 if (vf->rcv_pend.count > 0) { 1155 list_for_each(node, &vf->rcv_pend.wait_list) { 1156 trans = list_entry(node, struct qlcnic_bc_trans, list); 1157 if (trans->trans_id == hdr->seq_id) { 1158 found = 1; 1159 break; 1160 } 1161 } 1162 } 1163 1164 if (found) { 1165 curr_frag = trans->curr_req_frag; 1166 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 1167 curr_frag); 1168 qlcnic_sriov_pull_bc_msg(vf->adapter, 1169 (u32 *)(trans->req_hdr + curr_frag), 1170 (u32 *)(trans->req_pay + curr_frag), 1171 pay_size); 1172 trans->curr_req_frag++; 1173 if (trans->curr_req_frag >= hdr->num_frags) { 1174 vf->rcv_pend.count--; 1175 list_del(&trans->list); 1176 active = 1; 1177 } 1178 } 1179 spin_unlock(&vf->rcv_pend.lock); 1180 1181 if (active) 1182 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) 1183 qlcnic_sriov_cleanup_transaction(trans); 1184 1185 return; 1186 } 1187 1188 static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov, 1189 struct qlcnic_bc_hdr *hdr, 1190 struct qlcnic_vf_info *vf) 1191 { 1192 struct qlcnic_bc_trans *trans; 1193 struct qlcnic_adapter *adapter = vf->adapter; 1194 struct qlcnic_cmd_args cmd; 1195 u32 pay_size; 1196 int err; 1197 u8 cmd_op; 1198 1199 if (adapter->need_fw_reset) 1200 return; 1201 1202 if (!test_bit(QLC_BC_VF_STATE, &vf->state) && 1203 hdr->op_type != QLC_BC_CMD && 1204 hdr->cmd_op != QLCNIC_BC_CMD_CHANNEL_INIT) 1205 return; 1206 1207 if (hdr->frag_num > 1) { 1208 qlcnic_sriov_handle_pending_trans(sriov, vf, hdr); 1209 return; 1210 } 1211 1212 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args)); 1213 cmd_op = hdr->cmd_op; 1214 if (qlcnic_sriov_alloc_bc_trans(&trans)) 1215 return; 1216 1217 if (hdr->op_type == QLC_BC_CMD) 1218 err = qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op); 1219 else 1220 err = qlcnic_alloc_mbx_args(&cmd, adapter, cmd_op); 1221 1222 if (err) { 1223 qlcnic_sriov_cleanup_transaction(trans); 1224 return; 1225 } 1226 1227 cmd.op_type = hdr->op_type; 1228 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, hdr->seq_id, 1229 QLC_BC_COMMAND)) { 1230 qlcnic_free_mbx_args(&cmd); 1231 qlcnic_sriov_cleanup_transaction(trans); 1232 return; 1233 } 1234 1235 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 1236 trans->curr_req_frag); 1237 qlcnic_sriov_pull_bc_msg(vf->adapter, 1238 (u32 *)(trans->req_hdr + trans->curr_req_frag), 1239 (u32 *)(trans->req_pay + trans->curr_req_frag), 1240 pay_size); 1241 trans->func_id = vf->pci_func; 1242 trans->vf = vf; 1243 trans->trans_id = hdr->seq_id; 1244 trans->curr_req_frag++; 1245 1246 if (qlcnic_sriov_soft_flr_check(adapter, trans, vf)) 1247 return; 1248 1249 if (trans->curr_req_frag == trans->req_hdr->num_frags) { 1250 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) { 1251 qlcnic_free_mbx_args(&cmd); 1252 qlcnic_sriov_cleanup_transaction(trans); 1253 } 1254 } else { 1255 spin_lock(&vf->rcv_pend.lock); 1256 list_add_tail(&trans->list, &vf->rcv_pend.wait_list); 1257 vf->rcv_pend.count++; 1258 spin_unlock(&vf->rcv_pend.lock); 1259 } 1260 } 1261 1262 static void qlcnic_sriov_handle_msg_event(struct qlcnic_sriov *sriov, 1263 struct qlcnic_vf_info *vf) 1264 { 1265 struct qlcnic_bc_hdr hdr; 1266 u32 *ptr = (u32 *)&hdr; 1267 u8 msg_type, i; 1268 1269 for (i = 2; i < 6; i++) 1270 ptr[i - 2] = readl(QLCNIC_MBX_FW(vf->adapter->ahw, i)); 1271 msg_type = hdr.msg_type; 1272 1273 switch (msg_type) { 1274 case QLC_BC_COMMAND: 1275 qlcnic_sriov_handle_bc_cmd(sriov, &hdr, vf); 1276 break; 1277 case QLC_BC_RESPONSE: 1278 qlcnic_sriov_handle_bc_resp(&hdr, vf); 1279 break; 1280 } 1281 } 1282 1283 static void qlcnic_sriov_handle_flr_event(struct qlcnic_sriov *sriov, 1284 struct qlcnic_vf_info *vf) 1285 { 1286 struct qlcnic_adapter *adapter = vf->adapter; 1287 1288 if (qlcnic_sriov_pf_check(adapter)) 1289 qlcnic_sriov_pf_handle_flr(sriov, vf); 1290 else 1291 dev_err(&adapter->pdev->dev, 1292 "Invalid event to VF. VF should not get FLR event\n"); 1293 } 1294 1295 void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *adapter, u32 event) 1296 { 1297 struct qlcnic_vf_info *vf; 1298 struct qlcnic_sriov *sriov; 1299 int index; 1300 u8 pci_func; 1301 1302 sriov = adapter->ahw->sriov; 1303 pci_func = qlcnic_sriov_target_func_id(event); 1304 index = qlcnic_sriov_func_to_index(adapter, pci_func); 1305 1306 if (index < 0) 1307 return; 1308 1309 vf = &sriov->vf_info[index]; 1310 vf->pci_func = pci_func; 1311 1312 if (qlcnic_sriov_channel_free_check(event)) 1313 complete(&vf->ch_free_cmpl); 1314 1315 if (qlcnic_sriov_flr_check(event)) { 1316 qlcnic_sriov_handle_flr_event(sriov, vf); 1317 return; 1318 } 1319 1320 if (qlcnic_sriov_bc_msg_check(event)) 1321 qlcnic_sriov_handle_msg_event(sriov, vf); 1322 } 1323 1324 int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable) 1325 { 1326 struct qlcnic_cmd_args cmd; 1327 int err; 1328 1329 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state)) 1330 return 0; 1331 1332 if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_BC_EVENT_SETUP)) 1333 return -ENOMEM; 1334 1335 if (enable) 1336 cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7); 1337 1338 err = qlcnic_83xx_issue_cmd(adapter, &cmd); 1339 1340 if (err != QLCNIC_RCODE_SUCCESS) { 1341 dev_err(&adapter->pdev->dev, 1342 "Failed to %s bc events, err=%d\n", 1343 (enable ? "enable" : "disable"), err); 1344 } 1345 1346 qlcnic_free_mbx_args(&cmd); 1347 return err; 1348 } 1349 1350 static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter, 1351 struct qlcnic_bc_trans *trans) 1352 { 1353 u8 max = QLC_BC_CMD_MAX_RETRY_CNT; 1354 u32 state; 1355 1356 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1357 if (state == QLC_83XX_IDC_DEV_READY) { 1358 msleep(20); 1359 clear_bit(QLC_BC_VF_CHANNEL, &trans->vf->state); 1360 trans->trans_state = QLC_INIT; 1361 if (++adapter->fw_fail_cnt > max) 1362 return -EIO; 1363 else 1364 return 0; 1365 } 1366 1367 return -EIO; 1368 } 1369 1370 static int __qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter, 1371 struct qlcnic_cmd_args *cmd) 1372 { 1373 struct qlcnic_hardware_context *ahw = adapter->ahw; 1374 struct qlcnic_mailbox *mbx = ahw->mailbox; 1375 struct device *dev = &adapter->pdev->dev; 1376 struct qlcnic_bc_trans *trans; 1377 int err; 1378 u32 rsp_data, opcode, mbx_err_code, rsp; 1379 u16 seq = ++adapter->ahw->sriov->bc.trans_counter; 1380 u8 func = ahw->pci_func; 1381 1382 rsp = qlcnic_sriov_alloc_bc_trans(&trans); 1383 if (rsp) 1384 goto free_cmd; 1385 1386 rsp = qlcnic_sriov_prepare_bc_hdr(trans, cmd, seq, QLC_BC_COMMAND); 1387 if (rsp) 1388 goto cleanup_transaction; 1389 1390 retry: 1391 if (!test_bit(QLC_83XX_MBX_READY, &mbx->status)) { 1392 rsp = -EIO; 1393 QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n", 1394 QLCNIC_MBX_RSP(cmd->req.arg[0]), func); 1395 goto err_out; 1396 } 1397 1398 err = qlcnic_sriov_send_bc_cmd(adapter, trans, func); 1399 if (err) { 1400 dev_err(dev, "MBX command 0x%x timed out for VF %d\n", 1401 (cmd->req.arg[0] & 0xffff), func); 1402 rsp = QLCNIC_RCODE_TIMEOUT; 1403 1404 /* After adapter reset PF driver may take some time to 1405 * respond to VF's request. Retry request till maximum retries. 1406 */ 1407 if ((trans->req_hdr->cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) && 1408 !qlcnic_sriov_retry_bc_cmd(adapter, trans)) 1409 goto retry; 1410 1411 goto err_out; 1412 } 1413 1414 rsp_data = cmd->rsp.arg[0]; 1415 mbx_err_code = QLCNIC_MBX_STATUS(rsp_data); 1416 opcode = QLCNIC_MBX_RSP(cmd->req.arg[0]); 1417 1418 if ((mbx_err_code == QLCNIC_MBX_RSP_OK) || 1419 (mbx_err_code == QLCNIC_MBX_PORT_RSP_OK)) { 1420 rsp = QLCNIC_RCODE_SUCCESS; 1421 } else { 1422 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) { 1423 rsp = QLCNIC_RCODE_SUCCESS; 1424 } else { 1425 rsp = mbx_err_code; 1426 if (!rsp) 1427 rsp = 1; 1428 1429 dev_err(dev, 1430 "MBX command 0x%x failed with err:0x%x for VF %d\n", 1431 opcode, mbx_err_code, func); 1432 } 1433 } 1434 1435 err_out: 1436 if (rsp == QLCNIC_RCODE_TIMEOUT) { 1437 ahw->reset_context = 1; 1438 adapter->need_fw_reset = 1; 1439 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 1440 } 1441 1442 cleanup_transaction: 1443 qlcnic_sriov_cleanup_transaction(trans); 1444 1445 free_cmd: 1446 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) { 1447 qlcnic_free_mbx_args(cmd); 1448 kfree(cmd); 1449 } 1450 1451 return rsp; 1452 } 1453 1454 1455 static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter, 1456 struct qlcnic_cmd_args *cmd) 1457 { 1458 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) 1459 return qlcnic_sriov_async_issue_cmd(adapter, cmd); 1460 else 1461 return __qlcnic_sriov_issue_cmd(adapter, cmd); 1462 } 1463 1464 static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_op) 1465 { 1466 struct qlcnic_cmd_args cmd; 1467 struct qlcnic_vf_info *vf = &adapter->ahw->sriov->vf_info[0]; 1468 int ret; 1469 1470 memset(&cmd, 0, sizeof(cmd)); 1471 if (qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op)) 1472 return -ENOMEM; 1473 1474 ret = qlcnic_issue_cmd(adapter, &cmd); 1475 if (ret) { 1476 dev_err(&adapter->pdev->dev, 1477 "Failed bc channel %s %d\n", cmd_op ? "term" : "init", 1478 ret); 1479 goto out; 1480 } 1481 1482 cmd_op = (cmd.rsp.arg[0] & 0xff); 1483 if (cmd.rsp.arg[0] >> 25 == 2) 1484 return 2; 1485 if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) 1486 set_bit(QLC_BC_VF_STATE, &vf->state); 1487 else 1488 clear_bit(QLC_BC_VF_STATE, &vf->state); 1489 1490 out: 1491 qlcnic_free_mbx_args(&cmd); 1492 return ret; 1493 } 1494 1495 static void qlcnic_vf_add_mc_list(struct net_device *netdev, const u8 *mac, 1496 enum qlcnic_mac_type mac_type) 1497 { 1498 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1499 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 1500 struct qlcnic_vf_info *vf; 1501 u16 vlan_id; 1502 int i; 1503 1504 vf = &adapter->ahw->sriov->vf_info[0]; 1505 1506 if (!qlcnic_sriov_check_any_vlan(vf)) { 1507 qlcnic_nic_add_mac(adapter, mac, 0, mac_type); 1508 } else { 1509 spin_lock(&vf->vlan_list_lock); 1510 for (i = 0; i < sriov->num_allowed_vlans; i++) { 1511 vlan_id = vf->sriov_vlans[i]; 1512 if (vlan_id) 1513 qlcnic_nic_add_mac(adapter, mac, vlan_id, 1514 mac_type); 1515 } 1516 spin_unlock(&vf->vlan_list_lock); 1517 if (qlcnic_84xx_check(adapter)) 1518 qlcnic_nic_add_mac(adapter, mac, 0, mac_type); 1519 } 1520 } 1521 1522 void qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel *bc) 1523 { 1524 struct list_head *head = &bc->async_cmd_list; 1525 struct qlcnic_async_cmd *entry; 1526 1527 flush_workqueue(bc->bc_async_wq); 1528 cancel_work_sync(&bc->vf_async_work); 1529 1530 spin_lock(&bc->queue_lock); 1531 while (!list_empty(head)) { 1532 entry = list_entry(head->next, struct qlcnic_async_cmd, 1533 list); 1534 list_del(&entry->list); 1535 kfree(entry->cmd); 1536 kfree(entry); 1537 } 1538 spin_unlock(&bc->queue_lock); 1539 } 1540 1541 void qlcnic_sriov_vf_set_multi(struct net_device *netdev) 1542 { 1543 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1544 struct qlcnic_hardware_context *ahw = adapter->ahw; 1545 static const u8 bcast_addr[ETH_ALEN] = { 1546 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 1547 }; 1548 struct netdev_hw_addr *ha; 1549 u32 mode = VPORT_MISS_MODE_DROP; 1550 1551 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state)) 1552 return; 1553 1554 if (netdev->flags & IFF_PROMISC) { 1555 if (!(adapter->flags & QLCNIC_PROMISC_DISABLED)) 1556 mode = VPORT_MISS_MODE_ACCEPT_ALL; 1557 } else if ((netdev->flags & IFF_ALLMULTI) || 1558 (netdev_mc_count(netdev) > ahw->max_mc_count)) { 1559 mode = VPORT_MISS_MODE_ACCEPT_MULTI; 1560 } else { 1561 qlcnic_vf_add_mc_list(netdev, bcast_addr, QLCNIC_BROADCAST_MAC); 1562 if (!netdev_mc_empty(netdev)) { 1563 qlcnic_flush_mcast_mac(adapter); 1564 netdev_for_each_mc_addr(ha, netdev) 1565 qlcnic_vf_add_mc_list(netdev, ha->addr, 1566 QLCNIC_MULTICAST_MAC); 1567 } 1568 } 1569 1570 /* configure unicast MAC address, if there is not sufficient space 1571 * to store all the unicast addresses then enable promiscuous mode 1572 */ 1573 if (netdev_uc_count(netdev) > ahw->max_uc_count) { 1574 mode = VPORT_MISS_MODE_ACCEPT_ALL; 1575 } else if (!netdev_uc_empty(netdev)) { 1576 netdev_for_each_uc_addr(ha, netdev) 1577 qlcnic_vf_add_mc_list(netdev, ha->addr, 1578 QLCNIC_UNICAST_MAC); 1579 } 1580 1581 if (adapter->pdev->is_virtfn) { 1582 if (mode == VPORT_MISS_MODE_ACCEPT_ALL && 1583 !adapter->fdb_mac_learn) { 1584 qlcnic_alloc_lb_filters_mem(adapter); 1585 adapter->drv_mac_learn = true; 1586 adapter->rx_mac_learn = true; 1587 } else { 1588 adapter->drv_mac_learn = false; 1589 adapter->rx_mac_learn = false; 1590 } 1591 } 1592 1593 qlcnic_nic_set_promisc(adapter, mode); 1594 } 1595 1596 static void qlcnic_sriov_handle_async_issue_cmd(struct work_struct *work) 1597 { 1598 struct qlcnic_async_cmd *entry, *tmp; 1599 struct qlcnic_back_channel *bc; 1600 struct qlcnic_cmd_args *cmd; 1601 struct list_head *head; 1602 LIST_HEAD(del_list); 1603 1604 bc = container_of(work, struct qlcnic_back_channel, vf_async_work); 1605 head = &bc->async_cmd_list; 1606 1607 spin_lock(&bc->queue_lock); 1608 list_splice_init(head, &del_list); 1609 spin_unlock(&bc->queue_lock); 1610 1611 list_for_each_entry_safe(entry, tmp, &del_list, list) { 1612 list_del(&entry->list); 1613 cmd = entry->cmd; 1614 __qlcnic_sriov_issue_cmd(bc->adapter, cmd); 1615 kfree(entry); 1616 } 1617 1618 if (!list_empty(head)) 1619 queue_work(bc->bc_async_wq, &bc->vf_async_work); 1620 1621 return; 1622 } 1623 1624 static struct qlcnic_async_cmd * 1625 qlcnic_sriov_alloc_async_cmd(struct qlcnic_back_channel *bc, 1626 struct qlcnic_cmd_args *cmd) 1627 { 1628 struct qlcnic_async_cmd *entry = NULL; 1629 1630 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1631 if (!entry) 1632 return NULL; 1633 1634 entry->cmd = cmd; 1635 1636 spin_lock(&bc->queue_lock); 1637 list_add_tail(&entry->list, &bc->async_cmd_list); 1638 spin_unlock(&bc->queue_lock); 1639 1640 return entry; 1641 } 1642 1643 static void qlcnic_sriov_schedule_async_cmd(struct qlcnic_back_channel *bc, 1644 struct qlcnic_cmd_args *cmd) 1645 { 1646 struct qlcnic_async_cmd *entry = NULL; 1647 1648 entry = qlcnic_sriov_alloc_async_cmd(bc, cmd); 1649 if (!entry) { 1650 qlcnic_free_mbx_args(cmd); 1651 kfree(cmd); 1652 return; 1653 } 1654 1655 queue_work(bc->bc_async_wq, &bc->vf_async_work); 1656 } 1657 1658 static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *adapter, 1659 struct qlcnic_cmd_args *cmd) 1660 { 1661 1662 struct qlcnic_back_channel *bc = &adapter->ahw->sriov->bc; 1663 1664 if (adapter->need_fw_reset) 1665 return -EIO; 1666 1667 qlcnic_sriov_schedule_async_cmd(bc, cmd); 1668 1669 return 0; 1670 } 1671 1672 static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter) 1673 { 1674 int err; 1675 1676 adapter->need_fw_reset = 0; 1677 qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox); 1678 qlcnic_83xx_enable_mbx_interrupt(adapter); 1679 1680 err = qlcnic_sriov_cfg_bc_intr(adapter, 1); 1681 if (err) 1682 return err; 1683 1684 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT); 1685 if (err) 1686 goto err_out_cleanup_bc_intr; 1687 1688 err = qlcnic_sriov_vf_init_driver(adapter); 1689 if (err) 1690 goto err_out_term_channel; 1691 1692 return 0; 1693 1694 err_out_term_channel: 1695 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 1696 1697 err_out_cleanup_bc_intr: 1698 qlcnic_sriov_cfg_bc_intr(adapter, 0); 1699 return err; 1700 } 1701 1702 static void qlcnic_sriov_vf_attach(struct qlcnic_adapter *adapter) 1703 { 1704 struct net_device *netdev = adapter->netdev; 1705 1706 if (netif_running(netdev)) { 1707 if (!qlcnic_up(adapter, netdev)) 1708 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 1709 } 1710 1711 netif_device_attach(netdev); 1712 } 1713 1714 static void qlcnic_sriov_vf_detach(struct qlcnic_adapter *adapter) 1715 { 1716 struct qlcnic_hardware_context *ahw = adapter->ahw; 1717 struct qlcnic_intrpt_config *intr_tbl = ahw->intr_tbl; 1718 struct net_device *netdev = adapter->netdev; 1719 u8 i, max_ints = ahw->num_msix - 1; 1720 1721 netif_device_detach(netdev); 1722 qlcnic_83xx_detach_mailbox_work(adapter); 1723 qlcnic_83xx_disable_mbx_intr(adapter); 1724 1725 if (netif_running(netdev)) 1726 qlcnic_down(adapter, netdev); 1727 1728 for (i = 0; i < max_ints; i++) { 1729 intr_tbl[i].id = i; 1730 intr_tbl[i].enabled = 0; 1731 intr_tbl[i].src = 0; 1732 } 1733 ahw->reset_context = 0; 1734 } 1735 1736 static int qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter *adapter) 1737 { 1738 struct qlcnic_hardware_context *ahw = adapter->ahw; 1739 struct device *dev = &adapter->pdev->dev; 1740 struct qlc_83xx_idc *idc = &ahw->idc; 1741 u8 func = ahw->pci_func; 1742 u32 state; 1743 1744 if ((idc->prev_state == QLC_83XX_IDC_DEV_NEED_RESET) || 1745 (idc->prev_state == QLC_83XX_IDC_DEV_INIT)) { 1746 if (!qlcnic_sriov_vf_reinit_driver(adapter)) { 1747 qlcnic_sriov_vf_attach(adapter); 1748 adapter->fw_fail_cnt = 0; 1749 dev_info(dev, 1750 "%s: Reinitialization of VF 0x%x done after FW reset\n", 1751 __func__, func); 1752 } else { 1753 dev_err(dev, 1754 "%s: Reinitialization of VF 0x%x failed after FW reset\n", 1755 __func__, func); 1756 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE); 1757 dev_info(dev, "Current state 0x%x after FW reset\n", 1758 state); 1759 } 1760 } 1761 1762 return 0; 1763 } 1764 1765 static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter) 1766 { 1767 struct qlcnic_hardware_context *ahw = adapter->ahw; 1768 struct qlcnic_mailbox *mbx = ahw->mailbox; 1769 struct device *dev = &adapter->pdev->dev; 1770 struct qlc_83xx_idc *idc = &ahw->idc; 1771 u8 func = ahw->pci_func; 1772 u32 state; 1773 1774 adapter->reset_ctx_cnt++; 1775 1776 /* Skip the context reset and check if FW is hung */ 1777 if (adapter->reset_ctx_cnt < 3) { 1778 adapter->need_fw_reset = 1; 1779 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 1780 dev_info(dev, 1781 "Resetting context, wait here to check if FW is in failed state\n"); 1782 return 0; 1783 } 1784 1785 /* Check if number of resets exceed the threshold. 1786 * If it exceeds the threshold just fail the VF. 1787 */ 1788 if (adapter->reset_ctx_cnt > QLC_83XX_VF_RESET_FAIL_THRESH) { 1789 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status); 1790 adapter->tx_timeo_cnt = 0; 1791 adapter->fw_fail_cnt = 0; 1792 adapter->reset_ctx_cnt = 0; 1793 qlcnic_sriov_vf_detach(adapter); 1794 dev_err(dev, 1795 "Device context resets have exceeded the threshold, device interface will be shutdown\n"); 1796 return -EIO; 1797 } 1798 1799 dev_info(dev, "Resetting context of VF 0x%x\n", func); 1800 dev_info(dev, "%s: Context reset count %d for VF 0x%x\n", 1801 __func__, adapter->reset_ctx_cnt, func); 1802 set_bit(__QLCNIC_RESETTING, &adapter->state); 1803 adapter->need_fw_reset = 1; 1804 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 1805 qlcnic_sriov_vf_detach(adapter); 1806 adapter->need_fw_reset = 0; 1807 1808 if (!qlcnic_sriov_vf_reinit_driver(adapter)) { 1809 qlcnic_sriov_vf_attach(adapter); 1810 adapter->tx_timeo_cnt = 0; 1811 adapter->reset_ctx_cnt = 0; 1812 adapter->fw_fail_cnt = 0; 1813 dev_info(dev, "Done resetting context for VF 0x%x\n", func); 1814 } else { 1815 dev_err(dev, "%s: Reinitialization of VF 0x%x failed\n", 1816 __func__, func); 1817 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE); 1818 dev_info(dev, "%s: Current state 0x%x\n", __func__, state); 1819 } 1820 1821 return 0; 1822 } 1823 1824 static int qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter *adapter) 1825 { 1826 struct qlcnic_hardware_context *ahw = adapter->ahw; 1827 int ret = 0; 1828 1829 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) 1830 ret = qlcnic_sriov_vf_handle_dev_ready(adapter); 1831 else if (ahw->reset_context) 1832 ret = qlcnic_sriov_vf_handle_context_reset(adapter); 1833 1834 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1835 return ret; 1836 } 1837 1838 static int qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter *adapter) 1839 { 1840 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1841 1842 dev_err(&adapter->pdev->dev, "Device is in failed state\n"); 1843 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) 1844 qlcnic_sriov_vf_detach(adapter); 1845 1846 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status); 1847 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1848 return -EIO; 1849 } 1850 1851 static int 1852 qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter *adapter) 1853 { 1854 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox; 1855 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1856 1857 dev_info(&adapter->pdev->dev, "Device is in quiescent state\n"); 1858 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) { 1859 set_bit(__QLCNIC_RESETTING, &adapter->state); 1860 adapter->tx_timeo_cnt = 0; 1861 adapter->reset_ctx_cnt = 0; 1862 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 1863 qlcnic_sriov_vf_detach(adapter); 1864 } 1865 1866 return 0; 1867 } 1868 1869 static int qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter *adapter) 1870 { 1871 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox; 1872 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1873 u8 func = adapter->ahw->pci_func; 1874 1875 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) { 1876 dev_err(&adapter->pdev->dev, 1877 "Firmware hang detected by VF 0x%x\n", func); 1878 set_bit(__QLCNIC_RESETTING, &adapter->state); 1879 adapter->tx_timeo_cnt = 0; 1880 adapter->reset_ctx_cnt = 0; 1881 clear_bit(QLC_83XX_MBX_READY, &mbx->status); 1882 qlcnic_sriov_vf_detach(adapter); 1883 } 1884 return 0; 1885 } 1886 1887 static int qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter *adapter) 1888 { 1889 dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__); 1890 return 0; 1891 } 1892 1893 static void qlcnic_sriov_vf_periodic_tasks(struct qlcnic_adapter *adapter) 1894 { 1895 if (adapter->fhash.fnum) 1896 qlcnic_prune_lb_filters(adapter); 1897 } 1898 1899 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *work) 1900 { 1901 struct qlcnic_adapter *adapter; 1902 struct qlc_83xx_idc *idc; 1903 int ret = 0; 1904 1905 adapter = container_of(work, struct qlcnic_adapter, fw_work.work); 1906 idc = &adapter->ahw->idc; 1907 idc->curr_state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1908 1909 switch (idc->curr_state) { 1910 case QLC_83XX_IDC_DEV_READY: 1911 ret = qlcnic_sriov_vf_idc_ready_state(adapter); 1912 break; 1913 case QLC_83XX_IDC_DEV_NEED_RESET: 1914 case QLC_83XX_IDC_DEV_INIT: 1915 ret = qlcnic_sriov_vf_idc_init_reset_state(adapter); 1916 break; 1917 case QLC_83XX_IDC_DEV_NEED_QUISCENT: 1918 ret = qlcnic_sriov_vf_idc_need_quiescent_state(adapter); 1919 break; 1920 case QLC_83XX_IDC_DEV_FAILED: 1921 ret = qlcnic_sriov_vf_idc_failed_state(adapter); 1922 break; 1923 case QLC_83XX_IDC_DEV_QUISCENT: 1924 break; 1925 default: 1926 ret = qlcnic_sriov_vf_idc_unknown_state(adapter); 1927 } 1928 1929 idc->prev_state = idc->curr_state; 1930 qlcnic_sriov_vf_periodic_tasks(adapter); 1931 1932 if (!ret && test_bit(QLC_83XX_MODULE_LOADED, &idc->status)) 1933 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state, 1934 idc->delay); 1935 } 1936 1937 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *adapter) 1938 { 1939 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 1940 msleep(20); 1941 1942 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); 1943 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1944 cancel_delayed_work_sync(&adapter->fw_work); 1945 } 1946 1947 static int qlcnic_sriov_check_vlan_id(struct qlcnic_sriov *sriov, 1948 struct qlcnic_vf_info *vf, u16 vlan_id) 1949 { 1950 int i, err = -EINVAL; 1951 1952 if (!vf->sriov_vlans) 1953 return err; 1954 1955 spin_lock_bh(&vf->vlan_list_lock); 1956 1957 for (i = 0; i < sriov->num_allowed_vlans; i++) { 1958 if (vf->sriov_vlans[i] == vlan_id) { 1959 err = 0; 1960 break; 1961 } 1962 } 1963 1964 spin_unlock_bh(&vf->vlan_list_lock); 1965 return err; 1966 } 1967 1968 static int qlcnic_sriov_validate_num_vlans(struct qlcnic_sriov *sriov, 1969 struct qlcnic_vf_info *vf) 1970 { 1971 int err = 0; 1972 1973 spin_lock_bh(&vf->vlan_list_lock); 1974 1975 if (vf->num_vlan >= sriov->num_allowed_vlans) 1976 err = -EINVAL; 1977 1978 spin_unlock_bh(&vf->vlan_list_lock); 1979 return err; 1980 } 1981 1982 static int qlcnic_sriov_validate_vlan_cfg(struct qlcnic_adapter *adapter, 1983 u16 vid, u8 enable) 1984 { 1985 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 1986 struct qlcnic_vf_info *vf; 1987 bool vlan_exist; 1988 u8 allowed = 0; 1989 int i; 1990 1991 vf = &adapter->ahw->sriov->vf_info[0]; 1992 vlan_exist = qlcnic_sriov_check_any_vlan(vf); 1993 if (sriov->vlan_mode != QLC_GUEST_VLAN_MODE) 1994 return -EINVAL; 1995 1996 if (enable) { 1997 if (qlcnic_83xx_vf_check(adapter) && vlan_exist) 1998 return -EINVAL; 1999 2000 if (qlcnic_sriov_validate_num_vlans(sriov, vf)) 2001 return -EINVAL; 2002 2003 if (sriov->any_vlan) { 2004 for (i = 0; i < sriov->num_allowed_vlans; i++) { 2005 if (sriov->allowed_vlans[i] == vid) 2006 allowed = 1; 2007 } 2008 2009 if (!allowed) 2010 return -EINVAL; 2011 } 2012 } else { 2013 if (!vlan_exist || qlcnic_sriov_check_vlan_id(sriov, vf, vid)) 2014 return -EINVAL; 2015 } 2016 2017 return 0; 2018 } 2019 2020 static void qlcnic_sriov_vlan_operation(struct qlcnic_vf_info *vf, u16 vlan_id, 2021 enum qlcnic_vlan_operations opcode) 2022 { 2023 struct qlcnic_adapter *adapter = vf->adapter; 2024 struct qlcnic_sriov *sriov; 2025 2026 sriov = adapter->ahw->sriov; 2027 2028 if (!vf->sriov_vlans) 2029 return; 2030 2031 spin_lock_bh(&vf->vlan_list_lock); 2032 2033 switch (opcode) { 2034 case QLC_VLAN_ADD: 2035 qlcnic_sriov_add_vlan_id(sriov, vf, vlan_id); 2036 break; 2037 case QLC_VLAN_DELETE: 2038 qlcnic_sriov_del_vlan_id(sriov, vf, vlan_id); 2039 break; 2040 default: 2041 netdev_err(adapter->netdev, "Invalid VLAN operation\n"); 2042 } 2043 2044 spin_unlock_bh(&vf->vlan_list_lock); 2045 return; 2046 } 2047 2048 int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *adapter, 2049 u16 vid, u8 enable) 2050 { 2051 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 2052 struct net_device *netdev = adapter->netdev; 2053 struct qlcnic_vf_info *vf; 2054 struct qlcnic_cmd_args cmd; 2055 int ret; 2056 2057 memset(&cmd, 0, sizeof(cmd)); 2058 if (vid == 0) 2059 return 0; 2060 2061 vf = &adapter->ahw->sriov->vf_info[0]; 2062 ret = qlcnic_sriov_validate_vlan_cfg(adapter, vid, enable); 2063 if (ret) 2064 return ret; 2065 2066 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, 2067 QLCNIC_BC_CMD_CFG_GUEST_VLAN); 2068 if (ret) 2069 return ret; 2070 2071 cmd.req.arg[1] = (enable & 1) | vid << 16; 2072 2073 qlcnic_sriov_cleanup_async_list(&sriov->bc); 2074 ret = qlcnic_issue_cmd(adapter, &cmd); 2075 if (ret) { 2076 dev_err(&adapter->pdev->dev, 2077 "Failed to configure guest VLAN, err=%d\n", ret); 2078 } else { 2079 netif_addr_lock_bh(netdev); 2080 qlcnic_free_mac_list(adapter); 2081 netif_addr_unlock_bh(netdev); 2082 2083 if (enable) 2084 qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_ADD); 2085 else 2086 qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_DELETE); 2087 2088 netif_addr_lock_bh(netdev); 2089 qlcnic_set_multi(netdev); 2090 netif_addr_unlock_bh(netdev); 2091 } 2092 2093 qlcnic_free_mbx_args(&cmd); 2094 return ret; 2095 } 2096 2097 static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter) 2098 { 2099 struct list_head *head = &adapter->mac_list; 2100 struct qlcnic_mac_vlan_list *cur; 2101 2102 while (!list_empty(head)) { 2103 cur = list_entry(head->next, struct qlcnic_mac_vlan_list, list); 2104 qlcnic_sre_macaddr_change(adapter, cur->mac_addr, cur->vlan_id, 2105 QLCNIC_MAC_DEL); 2106 list_del(&cur->list); 2107 kfree(cur); 2108 } 2109 } 2110 2111 2112 static int qlcnic_sriov_vf_shutdown(struct pci_dev *pdev) 2113 { 2114 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); 2115 struct net_device *netdev = adapter->netdev; 2116 2117 netif_device_detach(netdev); 2118 qlcnic_cancel_idc_work(adapter); 2119 2120 if (netif_running(netdev)) 2121 qlcnic_down(adapter, netdev); 2122 2123 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 2124 qlcnic_sriov_cfg_bc_intr(adapter, 0); 2125 qlcnic_83xx_disable_mbx_intr(adapter); 2126 cancel_delayed_work_sync(&adapter->idc_aen_work); 2127 2128 return pci_save_state(pdev); 2129 } 2130 2131 static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter) 2132 { 2133 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 2134 struct net_device *netdev = adapter->netdev; 2135 int err; 2136 2137 set_bit(QLC_83XX_MODULE_LOADED, &idc->status); 2138 qlcnic_83xx_enable_mbx_interrupt(adapter); 2139 err = qlcnic_sriov_cfg_bc_intr(adapter, 1); 2140 if (err) 2141 return err; 2142 2143 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT); 2144 if (!err) { 2145 if (netif_running(netdev)) { 2146 err = qlcnic_up(adapter, netdev); 2147 if (!err) 2148 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 2149 } 2150 } 2151 2152 netif_device_attach(netdev); 2153 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state, 2154 idc->delay); 2155 return err; 2156 } 2157 2158 int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) 2159 { 2160 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 2161 struct qlcnic_vf_info *vf; 2162 int i; 2163 2164 for (i = 0; i < sriov->num_vfs; i++) { 2165 vf = &sriov->vf_info[i]; 2166 vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans, 2167 sizeof(*vf->sriov_vlans), GFP_KERNEL); 2168 if (!vf->sriov_vlans) 2169 return -ENOMEM; 2170 } 2171 2172 return 0; 2173 } 2174 2175 void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter) 2176 { 2177 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 2178 struct qlcnic_vf_info *vf; 2179 int i; 2180 2181 for (i = 0; i < sriov->num_vfs; i++) { 2182 vf = &sriov->vf_info[i]; 2183 kfree(vf->sriov_vlans); 2184 vf->sriov_vlans = NULL; 2185 } 2186 } 2187 2188 void qlcnic_sriov_add_vlan_id(struct qlcnic_sriov *sriov, 2189 struct qlcnic_vf_info *vf, u16 vlan_id) 2190 { 2191 int i; 2192 2193 for (i = 0; i < sriov->num_allowed_vlans; i++) { 2194 if (!vf->sriov_vlans[i]) { 2195 vf->sriov_vlans[i] = vlan_id; 2196 vf->num_vlan++; 2197 return; 2198 } 2199 } 2200 } 2201 2202 void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *sriov, 2203 struct qlcnic_vf_info *vf, u16 vlan_id) 2204 { 2205 int i; 2206 2207 for (i = 0; i < sriov->num_allowed_vlans; i++) { 2208 if (vf->sriov_vlans[i] == vlan_id) { 2209 vf->sriov_vlans[i] = 0; 2210 vf->num_vlan--; 2211 return; 2212 } 2213 } 2214 } 2215 2216 bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *vf) 2217 { 2218 bool err = false; 2219 2220 spin_lock_bh(&vf->vlan_list_lock); 2221 2222 if (vf->num_vlan) 2223 err = true; 2224 2225 spin_unlock_bh(&vf->vlan_list_lock); 2226 return err; 2227 } 2228