1 /* 2 * QLogic qlcnic NIC Driver 3 * Copyright (c) 2009-2013 QLogic Corporation 4 * 5 * See LICENSE.qlcnic for copyright and licensing details. 6 */ 7 8 #include "qlcnic_sriov.h" 9 #include "qlcnic.h" 10 #include "qlcnic_83xx_hw.h" 11 #include <linux/types.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_vf_free_mac_list(struct qlcnic_adapter *); 32 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32); 33 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *); 34 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *); 35 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *); 36 static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *, 37 struct qlcnic_cmd_args *); 38 39 static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = { 40 .read_crb = qlcnic_83xx_read_crb, 41 .write_crb = qlcnic_83xx_write_crb, 42 .read_reg = qlcnic_83xx_rd_reg_indirect, 43 .write_reg = qlcnic_83xx_wrt_reg_indirect, 44 .get_mac_address = qlcnic_83xx_get_mac_address, 45 .setup_intr = qlcnic_83xx_setup_intr, 46 .alloc_mbx_args = qlcnic_83xx_alloc_mbx_args, 47 .mbx_cmd = qlcnic_sriov_vf_mbx_op, 48 .get_func_no = qlcnic_83xx_get_func_no, 49 .api_lock = qlcnic_83xx_cam_lock, 50 .api_unlock = qlcnic_83xx_cam_unlock, 51 .process_lb_rcv_ring_diag = qlcnic_83xx_process_rcv_ring_diag, 52 .create_rx_ctx = qlcnic_83xx_create_rx_ctx, 53 .create_tx_ctx = qlcnic_83xx_create_tx_ctx, 54 .del_rx_ctx = qlcnic_83xx_del_rx_ctx, 55 .del_tx_ctx = qlcnic_83xx_del_tx_ctx, 56 .setup_link_event = qlcnic_83xx_setup_link_event, 57 .get_nic_info = qlcnic_83xx_get_nic_info, 58 .get_pci_info = qlcnic_83xx_get_pci_info, 59 .set_nic_info = qlcnic_83xx_set_nic_info, 60 .change_macvlan = qlcnic_83xx_sre_macaddr_change, 61 .napi_enable = qlcnic_83xx_napi_enable, 62 .napi_disable = qlcnic_83xx_napi_disable, 63 .config_intr_coal = qlcnic_83xx_config_intr_coal, 64 .config_rss = qlcnic_83xx_config_rss, 65 .config_hw_lro = qlcnic_83xx_config_hw_lro, 66 .config_promisc_mode = qlcnic_83xx_nic_set_promisc, 67 .change_l2_filter = qlcnic_83xx_change_l2_filter, 68 .get_board_info = qlcnic_83xx_get_port_info, 69 .free_mac_list = qlcnic_sriov_vf_free_mac_list, 70 }; 71 72 static struct qlcnic_nic_template qlcnic_sriov_vf_ops = { 73 .config_bridged_mode = qlcnic_config_bridged_mode, 74 .config_led = qlcnic_config_led, 75 .cancel_idc_work = qlcnic_sriov_vf_cancel_fw_work, 76 .napi_add = qlcnic_83xx_napi_add, 77 .napi_del = qlcnic_83xx_napi_del, 78 .config_ipaddr = qlcnic_83xx_config_ipaddr, 79 .clear_legacy_intr = qlcnic_83xx_clear_legacy_intr, 80 }; 81 82 static const struct qlcnic_mailbox_metadata qlcnic_sriov_bc_mbx_tbl[] = { 83 {QLCNIC_BC_CMD_CHANNEL_INIT, 2, 2}, 84 {QLCNIC_BC_CMD_CHANNEL_TERM, 2, 2}, 85 {QLCNIC_BC_CMD_GET_ACL, 3, 14}, 86 {QLCNIC_BC_CMD_CFG_GUEST_VLAN, 2, 2}, 87 }; 88 89 static inline bool qlcnic_sriov_bc_msg_check(u32 val) 90 { 91 return (val & (1 << QLC_BC_MSG)) ? true : false; 92 } 93 94 static inline bool qlcnic_sriov_channel_free_check(u32 val) 95 { 96 return (val & (1 << QLC_BC_CFREE)) ? true : false; 97 } 98 99 static inline bool qlcnic_sriov_flr_check(u32 val) 100 { 101 return (val & (1 << QLC_BC_FLR)) ? true : false; 102 } 103 104 static inline u8 qlcnic_sriov_target_func_id(u32 val) 105 { 106 return (val >> 4) & 0xff; 107 } 108 109 static int qlcnic_sriov_virtid_fn(struct qlcnic_adapter *adapter, int vf_id) 110 { 111 struct pci_dev *dev = adapter->pdev; 112 int pos; 113 u16 stride, offset; 114 115 if (qlcnic_sriov_vf_check(adapter)) 116 return 0; 117 118 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); 119 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset); 120 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride); 121 122 return (dev->devfn + offset + stride * vf_id) & 0xff; 123 } 124 125 int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs) 126 { 127 struct qlcnic_sriov *sriov; 128 struct qlcnic_back_channel *bc; 129 struct workqueue_struct *wq; 130 struct qlcnic_vport *vp; 131 struct qlcnic_vf_info *vf; 132 int err, i; 133 134 if (!qlcnic_sriov_enable_check(adapter)) 135 return -EIO; 136 137 sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL); 138 if (!sriov) 139 return -ENOMEM; 140 141 adapter->ahw->sriov = sriov; 142 sriov->num_vfs = num_vfs; 143 bc = &sriov->bc; 144 sriov->vf_info = kzalloc(sizeof(struct qlcnic_vf_info) * 145 num_vfs, GFP_KERNEL); 146 if (!sriov->vf_info) { 147 err = -ENOMEM; 148 goto qlcnic_free_sriov; 149 } 150 151 wq = create_singlethread_workqueue("bc-trans"); 152 if (wq == NULL) { 153 err = -ENOMEM; 154 dev_err(&adapter->pdev->dev, 155 "Cannot create bc-trans workqueue\n"); 156 goto qlcnic_free_vf_info; 157 } 158 159 bc->bc_trans_wq = wq; 160 161 wq = create_singlethread_workqueue("async"); 162 if (wq == NULL) { 163 err = -ENOMEM; 164 dev_err(&adapter->pdev->dev, "Cannot create async workqueue\n"); 165 goto qlcnic_destroy_trans_wq; 166 } 167 168 bc->bc_async_wq = wq; 169 INIT_LIST_HEAD(&bc->async_list); 170 171 for (i = 0; i < num_vfs; i++) { 172 vf = &sriov->vf_info[i]; 173 vf->adapter = adapter; 174 vf->pci_func = qlcnic_sriov_virtid_fn(adapter, i); 175 mutex_init(&vf->send_cmd_lock); 176 INIT_LIST_HEAD(&vf->rcv_act.wait_list); 177 INIT_LIST_HEAD(&vf->rcv_pend.wait_list); 178 spin_lock_init(&vf->rcv_act.lock); 179 spin_lock_init(&vf->rcv_pend.lock); 180 init_completion(&vf->ch_free_cmpl); 181 182 if (qlcnic_sriov_pf_check(adapter)) { 183 vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL); 184 if (!vp) { 185 err = -ENOMEM; 186 goto qlcnic_destroy_async_wq; 187 } 188 sriov->vf_info[i].vp = vp; 189 vp->max_tx_bw = MAX_BW; 190 random_ether_addr(vp->mac); 191 dev_info(&adapter->pdev->dev, 192 "MAC Address %pM is configured for VF %d\n", 193 vp->mac, i); 194 } 195 } 196 197 return 0; 198 199 qlcnic_destroy_async_wq: 200 destroy_workqueue(bc->bc_async_wq); 201 202 qlcnic_destroy_trans_wq: 203 destroy_workqueue(bc->bc_trans_wq); 204 205 qlcnic_free_vf_info: 206 kfree(sriov->vf_info); 207 208 qlcnic_free_sriov: 209 kfree(adapter->ahw->sriov); 210 return err; 211 } 212 213 void qlcnic_sriov_cleanup_list(struct qlcnic_trans_list *t_list) 214 { 215 struct qlcnic_bc_trans *trans; 216 struct qlcnic_cmd_args cmd; 217 unsigned long flags; 218 219 spin_lock_irqsave(&t_list->lock, flags); 220 221 while (!list_empty(&t_list->wait_list)) { 222 trans = list_first_entry(&t_list->wait_list, 223 struct qlcnic_bc_trans, list); 224 list_del(&trans->list); 225 t_list->count--; 226 cmd.req.arg = (u32 *)trans->req_pay; 227 cmd.rsp.arg = (u32 *)trans->rsp_pay; 228 qlcnic_free_mbx_args(&cmd); 229 qlcnic_sriov_cleanup_transaction(trans); 230 } 231 232 spin_unlock_irqrestore(&t_list->lock, flags); 233 } 234 235 void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter) 236 { 237 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 238 struct qlcnic_back_channel *bc = &sriov->bc; 239 struct qlcnic_vf_info *vf; 240 int i; 241 242 if (!qlcnic_sriov_enable_check(adapter)) 243 return; 244 245 qlcnic_sriov_cleanup_async_list(bc); 246 destroy_workqueue(bc->bc_async_wq); 247 248 for (i = 0; i < sriov->num_vfs; i++) { 249 vf = &sriov->vf_info[i]; 250 qlcnic_sriov_cleanup_list(&vf->rcv_pend); 251 cancel_work_sync(&vf->trans_work); 252 qlcnic_sriov_cleanup_list(&vf->rcv_act); 253 } 254 255 destroy_workqueue(bc->bc_trans_wq); 256 257 for (i = 0; i < sriov->num_vfs; i++) 258 kfree(sriov->vf_info[i].vp); 259 260 kfree(sriov->vf_info); 261 kfree(adapter->ahw->sriov); 262 } 263 264 static void qlcnic_sriov_vf_cleanup(struct qlcnic_adapter *adapter) 265 { 266 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 267 qlcnic_sriov_cfg_bc_intr(adapter, 0); 268 __qlcnic_sriov_cleanup(adapter); 269 } 270 271 void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter) 272 { 273 if (qlcnic_sriov_pf_check(adapter)) 274 qlcnic_sriov_pf_cleanup(adapter); 275 276 if (qlcnic_sriov_vf_check(adapter)) 277 qlcnic_sriov_vf_cleanup(adapter); 278 } 279 280 static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr, 281 u32 *pay, u8 pci_func, u8 size) 282 { 283 u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, val, wait_time = 0; 284 struct qlcnic_hardware_context *ahw = adapter->ahw; 285 unsigned long flags; 286 u16 opcode; 287 u8 mbx_err_code; 288 int i, j; 289 290 opcode = ((struct qlcnic_bc_hdr *)hdr)->cmd_op; 291 292 if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) { 293 dev_info(&adapter->pdev->dev, 294 "Mailbox cmd attempted, 0x%x\n", opcode); 295 dev_info(&adapter->pdev->dev, "Mailbox detached\n"); 296 return 0; 297 } 298 299 spin_lock_irqsave(&ahw->mbx_lock, flags); 300 301 mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL); 302 if (mbx_val) { 303 QLCDB(adapter, DRV, "Mailbox cmd attempted, 0x%x\n", opcode); 304 spin_unlock_irqrestore(&ahw->mbx_lock, flags); 305 return QLCNIC_RCODE_TIMEOUT; 306 } 307 /* Fill in mailbox registers */ 308 val = size + (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 309 mbx_cmd = 0x31 | (val << 16) | (adapter->ahw->fw_hal_version << 29); 310 311 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0)); 312 mbx_cmd = 0x1 | (1 << 4); 313 314 if (qlcnic_sriov_pf_check(adapter)) 315 mbx_cmd |= (pci_func << 5); 316 317 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 1)); 318 for (i = 2, j = 0; j < (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 319 i++, j++) { 320 writel(*(hdr++), QLCNIC_MBX_HOST(ahw, i)); 321 } 322 for (j = 0; j < size; j++, i++) 323 writel(*(pay++), QLCNIC_MBX_HOST(ahw, i)); 324 325 /* Signal FW about the impending command */ 326 QLCWRX(ahw, QLCNIC_HOST_MBX_CTRL, QLCNIC_SET_OWNER); 327 328 /* Waiting for the mailbox cmd to complete and while waiting here 329 * some AEN might arrive. If more than 5 seconds expire we can 330 * assume something is wrong. 331 */ 332 poll: 333 rsp = qlcnic_83xx_mbx_poll(adapter, &wait_time); 334 if (rsp != QLCNIC_RCODE_TIMEOUT) { 335 /* Get the FW response data */ 336 fw_data = readl(QLCNIC_MBX_FW(ahw, 0)); 337 if (fw_data & QLCNIC_MBX_ASYNC_EVENT) { 338 __qlcnic_83xx_process_aen(adapter); 339 goto poll; 340 } 341 mbx_err_code = QLCNIC_MBX_STATUS(fw_data); 342 rsp_num = QLCNIC_MBX_NUM_REGS(fw_data); 343 opcode = QLCNIC_MBX_RSP(fw_data); 344 345 switch (mbx_err_code) { 346 case QLCNIC_MBX_RSP_OK: 347 case QLCNIC_MBX_PORT_RSP_OK: 348 rsp = QLCNIC_RCODE_SUCCESS; 349 break; 350 default: 351 if (opcode == QLCNIC_CMD_CONFIG_MAC_VLAN) { 352 rsp = qlcnic_83xx_mac_rcode(adapter); 353 if (!rsp) 354 goto out; 355 } 356 dev_err(&adapter->pdev->dev, 357 "MBX command 0x%x failed with err:0x%x\n", 358 opcode, mbx_err_code); 359 rsp = mbx_err_code; 360 break; 361 } 362 goto out; 363 } 364 365 dev_err(&adapter->pdev->dev, "MBX command 0x%x timed out\n", 366 QLCNIC_MBX_RSP(mbx_cmd)); 367 rsp = QLCNIC_RCODE_TIMEOUT; 368 out: 369 /* clear fw mbx control register */ 370 QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER); 371 spin_unlock_irqrestore(&adapter->ahw->mbx_lock, flags); 372 return rsp; 373 } 374 375 static void qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter *adapter) 376 { 377 adapter->num_rxd = QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF; 378 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G; 379 adapter->num_jumbo_rxd = QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF; 380 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; 381 adapter->num_txd = MAX_CMD_DESCRIPTORS; 382 adapter->max_rds_rings = MAX_RDS_RINGS; 383 } 384 385 int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *adapter, 386 struct qlcnic_info *npar_info, u16 vport_id) 387 { 388 struct device *dev = &adapter->pdev->dev; 389 struct qlcnic_cmd_args cmd; 390 int err; 391 u32 status; 392 393 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO); 394 if (err) 395 return err; 396 397 cmd.req.arg[1] = vport_id << 16 | 0x1; 398 err = qlcnic_issue_cmd(adapter, &cmd); 399 if (err) { 400 dev_err(&adapter->pdev->dev, 401 "Failed to get vport info, err=%d\n", err); 402 qlcnic_free_mbx_args(&cmd); 403 return err; 404 } 405 406 status = cmd.rsp.arg[2] & 0xffff; 407 if (status & BIT_0) 408 npar_info->min_tx_bw = MSW(cmd.rsp.arg[2]); 409 if (status & BIT_1) 410 npar_info->max_tx_bw = LSW(cmd.rsp.arg[3]); 411 if (status & BIT_2) 412 npar_info->max_tx_ques = MSW(cmd.rsp.arg[3]); 413 if (status & BIT_3) 414 npar_info->max_tx_mac_filters = LSW(cmd.rsp.arg[4]); 415 if (status & BIT_4) 416 npar_info->max_rx_mcast_mac_filters = MSW(cmd.rsp.arg[4]); 417 if (status & BIT_5) 418 npar_info->max_rx_ucast_mac_filters = LSW(cmd.rsp.arg[5]); 419 if (status & BIT_6) 420 npar_info->max_rx_ip_addr = MSW(cmd.rsp.arg[5]); 421 if (status & BIT_7) 422 npar_info->max_rx_lro_flow = LSW(cmd.rsp.arg[6]); 423 if (status & BIT_8) 424 npar_info->max_rx_status_rings = MSW(cmd.rsp.arg[6]); 425 if (status & BIT_9) 426 npar_info->max_rx_buf_rings = LSW(cmd.rsp.arg[7]); 427 428 npar_info->max_rx_ques = MSW(cmd.rsp.arg[7]); 429 npar_info->max_tx_vlan_keys = LSW(cmd.rsp.arg[8]); 430 npar_info->max_local_ipv6_addrs = MSW(cmd.rsp.arg[8]); 431 npar_info->max_remote_ipv6_addrs = LSW(cmd.rsp.arg[9]); 432 433 dev_info(dev, "\n\tmin_tx_bw: %d, max_tx_bw: %d max_tx_ques: %d,\n" 434 "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n" 435 "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n" 436 "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n" 437 "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n" 438 "\tlocal_ipv6_addr: %d, remote_ipv6_addr: %d\n", 439 npar_info->min_tx_bw, npar_info->max_tx_bw, 440 npar_info->max_tx_ques, npar_info->max_tx_mac_filters, 441 npar_info->max_rx_mcast_mac_filters, 442 npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr, 443 npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings, 444 npar_info->max_rx_buf_rings, npar_info->max_rx_ques, 445 npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs, 446 npar_info->max_remote_ipv6_addrs); 447 448 qlcnic_free_mbx_args(&cmd); 449 return err; 450 } 451 452 static int qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter *adapter, 453 struct qlcnic_cmd_args *cmd) 454 { 455 adapter->rx_pvid = (cmd->rsp.arg[1] >> 16) & 0xffff; 456 adapter->flags &= ~QLCNIC_TAGGING_ENABLED; 457 return 0; 458 } 459 460 static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, 461 struct qlcnic_cmd_args *cmd) 462 { 463 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 464 int i, num_vlans; 465 u16 *vlans; 466 467 if (sriov->allowed_vlans) 468 return 0; 469 470 sriov->any_vlan = cmd->rsp.arg[2] & 0xf; 471 if (!sriov->any_vlan) 472 return 0; 473 474 sriov->num_allowed_vlans = cmd->rsp.arg[2] >> 16; 475 num_vlans = sriov->num_allowed_vlans; 476 sriov->allowed_vlans = kzalloc(sizeof(u16) * num_vlans, GFP_KERNEL); 477 if (!sriov->allowed_vlans) 478 return -ENOMEM; 479 480 vlans = (u16 *)&cmd->rsp.arg[3]; 481 for (i = 0; i < num_vlans; i++) 482 sriov->allowed_vlans[i] = vlans[i]; 483 484 return 0; 485 } 486 487 static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter) 488 { 489 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 490 struct qlcnic_cmd_args cmd; 491 int ret; 492 493 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, QLCNIC_BC_CMD_GET_ACL); 494 if (ret) 495 return ret; 496 497 ret = qlcnic_issue_cmd(adapter, &cmd); 498 if (ret) { 499 dev_err(&adapter->pdev->dev, "Failed to get ACL, err=%d\n", 500 ret); 501 } else { 502 sriov->vlan_mode = cmd.rsp.arg[1] & 0x3; 503 switch (sriov->vlan_mode) { 504 case QLC_GUEST_VLAN_MODE: 505 ret = qlcnic_sriov_set_guest_vlan_mode(adapter, &cmd); 506 break; 507 case QLC_PVID_MODE: 508 ret = qlcnic_sriov_set_pvid_mode(adapter, &cmd); 509 break; 510 } 511 } 512 513 qlcnic_free_mbx_args(&cmd); 514 return ret; 515 } 516 517 static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter) 518 { 519 struct qlcnic_info nic_info; 520 struct qlcnic_hardware_context *ahw = adapter->ahw; 521 int err; 522 523 err = qlcnic_sriov_get_vf_vport_info(adapter, &nic_info, 0); 524 if (err) 525 return err; 526 527 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func); 528 if (err) 529 return -EIO; 530 531 err = qlcnic_sriov_get_vf_acl(adapter); 532 if (err) 533 return err; 534 535 if (qlcnic_83xx_get_port_info(adapter)) 536 return -EIO; 537 538 qlcnic_sriov_vf_cfg_buff_desc(adapter); 539 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED; 540 dev_info(&adapter->pdev->dev, "HAL Version: %d\n", 541 adapter->ahw->fw_hal_version); 542 543 ahw->physical_port = (u8) nic_info.phys_port; 544 ahw->switch_mode = nic_info.switch_mode; 545 ahw->max_mtu = nic_info.max_mtu; 546 ahw->op_mode = nic_info.op_mode; 547 ahw->capabilities = nic_info.capabilities; 548 return 0; 549 } 550 551 static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter, 552 int pci_using_dac) 553 { 554 int err; 555 556 INIT_LIST_HEAD(&adapter->vf_mc_list); 557 if (!qlcnic_use_msi_x && !!qlcnic_use_msi) 558 dev_warn(&adapter->pdev->dev, 559 "83xx adapter do not support MSI interrupts\n"); 560 561 err = qlcnic_setup_intr(adapter, 1); 562 if (err) { 563 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n"); 564 goto err_out_disable_msi; 565 } 566 567 err = qlcnic_83xx_setup_mbx_intr(adapter); 568 if (err) 569 goto err_out_disable_msi; 570 571 err = qlcnic_sriov_init(adapter, 1); 572 if (err) 573 goto err_out_disable_mbx_intr; 574 575 err = qlcnic_sriov_cfg_bc_intr(adapter, 1); 576 if (err) 577 goto err_out_cleanup_sriov; 578 579 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT); 580 if (err) 581 goto err_out_disable_bc_intr; 582 583 err = qlcnic_sriov_vf_init_driver(adapter); 584 if (err) 585 goto err_out_send_channel_term; 586 587 err = qlcnic_setup_netdev(adapter, adapter->netdev, pci_using_dac); 588 if (err) 589 goto err_out_send_channel_term; 590 591 pci_set_drvdata(adapter->pdev, adapter); 592 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", 593 adapter->netdev->name); 594 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state, 595 adapter->ahw->idc.delay); 596 return 0; 597 598 err_out_send_channel_term: 599 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 600 601 err_out_disable_bc_intr: 602 qlcnic_sriov_cfg_bc_intr(adapter, 0); 603 604 err_out_cleanup_sriov: 605 __qlcnic_sriov_cleanup(adapter); 606 607 err_out_disable_mbx_intr: 608 qlcnic_83xx_free_mbx_intr(adapter); 609 610 err_out_disable_msi: 611 qlcnic_teardown_intr(adapter); 612 return err; 613 } 614 615 static int qlcnic_sriov_check_dev_ready(struct qlcnic_adapter *adapter) 616 { 617 u32 state; 618 619 do { 620 msleep(20); 621 if (++adapter->fw_fail_cnt > QLC_BC_CMD_MAX_RETRY_CNT) 622 return -EIO; 623 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 624 } while (state != QLC_83XX_IDC_DEV_READY); 625 626 return 0; 627 } 628 629 int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter, int pci_using_dac) 630 { 631 struct qlcnic_hardware_context *ahw = adapter->ahw; 632 int err; 633 634 spin_lock_init(&ahw->mbx_lock); 635 set_bit(QLC_83XX_MBX_READY, &ahw->idc.status); 636 set_bit(QLC_83XX_MODULE_LOADED, &ahw->idc.status); 637 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY; 638 ahw->reset_context = 0; 639 adapter->fw_fail_cnt = 0; 640 ahw->msix_supported = 1; 641 adapter->need_fw_reset = 0; 642 adapter->flags |= QLCNIC_TX_INTR_SHARED; 643 644 err = qlcnic_sriov_check_dev_ready(adapter); 645 if (err) 646 return err; 647 648 err = qlcnic_sriov_setup_vf(adapter, pci_using_dac); 649 if (err) 650 return err; 651 652 if (qlcnic_read_mac_addr(adapter)) 653 dev_warn(&adapter->pdev->dev, "failed to read mac addr\n"); 654 655 clear_bit(__QLCNIC_RESETTING, &adapter->state); 656 return 0; 657 } 658 659 void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *adapter) 660 { 661 struct qlcnic_hardware_context *ahw = adapter->ahw; 662 663 ahw->op_mode = QLCNIC_SRIOV_VF_FUNC; 664 dev_info(&adapter->pdev->dev, 665 "HAL Version: %d Non Privileged SRIOV function\n", 666 ahw->fw_hal_version); 667 adapter->nic_ops = &qlcnic_sriov_vf_ops; 668 set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state); 669 return; 670 } 671 672 void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *ahw) 673 { 674 ahw->hw_ops = &qlcnic_sriov_vf_hw_ops; 675 ahw->reg_tbl = (u32 *)qlcnic_83xx_reg_tbl; 676 ahw->ext_reg_tbl = (u32 *)qlcnic_83xx_ext_reg_tbl; 677 } 678 679 static u32 qlcnic_sriov_get_bc_paysize(u32 real_pay_size, u8 curr_frag) 680 { 681 u32 pay_size; 682 683 pay_size = real_pay_size / ((curr_frag + 1) * QLC_BC_PAYLOAD_SZ); 684 685 if (pay_size) 686 pay_size = QLC_BC_PAYLOAD_SZ; 687 else 688 pay_size = real_pay_size % QLC_BC_PAYLOAD_SZ; 689 690 return pay_size; 691 } 692 693 int qlcnic_sriov_func_to_index(struct qlcnic_adapter *adapter, u8 pci_func) 694 { 695 struct qlcnic_vf_info *vf_info = adapter->ahw->sriov->vf_info; 696 u8 i; 697 698 if (qlcnic_sriov_vf_check(adapter)) 699 return 0; 700 701 for (i = 0; i < adapter->ahw->sriov->num_vfs; i++) { 702 if (vf_info[i].pci_func == pci_func) 703 return i; 704 } 705 706 return -EINVAL; 707 } 708 709 static inline int qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans **trans) 710 { 711 *trans = kzalloc(sizeof(struct qlcnic_bc_trans), GFP_ATOMIC); 712 if (!*trans) 713 return -ENOMEM; 714 715 init_completion(&(*trans)->resp_cmpl); 716 return 0; 717 } 718 719 static inline int qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr **hdr, 720 u32 size) 721 { 722 *hdr = kzalloc(sizeof(struct qlcnic_bc_hdr) * size, GFP_ATOMIC); 723 if (!*hdr) 724 return -ENOMEM; 725 726 return 0; 727 } 728 729 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *mbx, u32 type) 730 { 731 const struct qlcnic_mailbox_metadata *mbx_tbl; 732 int i, size; 733 734 mbx_tbl = qlcnic_sriov_bc_mbx_tbl; 735 size = ARRAY_SIZE(qlcnic_sriov_bc_mbx_tbl); 736 737 for (i = 0; i < size; i++) { 738 if (type == mbx_tbl[i].cmd) { 739 mbx->op_type = QLC_BC_CMD; 740 mbx->req.num = mbx_tbl[i].in_args; 741 mbx->rsp.num = mbx_tbl[i].out_args; 742 mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32), 743 GFP_ATOMIC); 744 if (!mbx->req.arg) 745 return -ENOMEM; 746 mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32), 747 GFP_ATOMIC); 748 if (!mbx->rsp.arg) { 749 kfree(mbx->req.arg); 750 mbx->req.arg = NULL; 751 return -ENOMEM; 752 } 753 memset(mbx->req.arg, 0, sizeof(u32) * mbx->req.num); 754 memset(mbx->rsp.arg, 0, sizeof(u32) * mbx->rsp.num); 755 mbx->req.arg[0] = (type | (mbx->req.num << 16) | 756 (3 << 29)); 757 return 0; 758 } 759 } 760 return -EINVAL; 761 } 762 763 static int qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans *trans, 764 struct qlcnic_cmd_args *cmd, 765 u16 seq, u8 msg_type) 766 { 767 struct qlcnic_bc_hdr *hdr; 768 int i; 769 u32 num_regs, bc_pay_sz; 770 u16 remainder; 771 u8 cmd_op, num_frags, t_num_frags; 772 773 bc_pay_sz = QLC_BC_PAYLOAD_SZ; 774 if (msg_type == QLC_BC_COMMAND) { 775 trans->req_pay = (struct qlcnic_bc_payload *)cmd->req.arg; 776 trans->rsp_pay = (struct qlcnic_bc_payload *)cmd->rsp.arg; 777 num_regs = cmd->req.num; 778 trans->req_pay_size = (num_regs * 4); 779 num_regs = cmd->rsp.num; 780 trans->rsp_pay_size = (num_regs * 4); 781 cmd_op = cmd->req.arg[0] & 0xff; 782 remainder = (trans->req_pay_size) % (bc_pay_sz); 783 num_frags = (trans->req_pay_size) / (bc_pay_sz); 784 if (remainder) 785 num_frags++; 786 t_num_frags = num_frags; 787 if (qlcnic_sriov_alloc_bc_msg(&trans->req_hdr, num_frags)) 788 return -ENOMEM; 789 remainder = (trans->rsp_pay_size) % (bc_pay_sz); 790 num_frags = (trans->rsp_pay_size) / (bc_pay_sz); 791 if (remainder) 792 num_frags++; 793 if (qlcnic_sriov_alloc_bc_msg(&trans->rsp_hdr, num_frags)) 794 return -ENOMEM; 795 num_frags = t_num_frags; 796 hdr = trans->req_hdr; 797 } else { 798 cmd->req.arg = (u32 *)trans->req_pay; 799 cmd->rsp.arg = (u32 *)trans->rsp_pay; 800 cmd_op = cmd->req.arg[0] & 0xff; 801 remainder = (trans->rsp_pay_size) % (bc_pay_sz); 802 num_frags = (trans->rsp_pay_size) / (bc_pay_sz); 803 if (remainder) 804 num_frags++; 805 cmd->req.num = trans->req_pay_size / 4; 806 cmd->rsp.num = trans->rsp_pay_size / 4; 807 hdr = trans->rsp_hdr; 808 } 809 810 trans->trans_id = seq; 811 trans->cmd_id = cmd_op; 812 for (i = 0; i < num_frags; i++) { 813 hdr[i].version = 2; 814 hdr[i].msg_type = msg_type; 815 hdr[i].op_type = cmd->op_type; 816 hdr[i].num_cmds = 1; 817 hdr[i].num_frags = num_frags; 818 hdr[i].frag_num = i + 1; 819 hdr[i].cmd_op = cmd_op; 820 hdr[i].seq_id = seq; 821 } 822 return 0; 823 } 824 825 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *trans) 826 { 827 if (!trans) 828 return; 829 kfree(trans->req_hdr); 830 kfree(trans->rsp_hdr); 831 kfree(trans); 832 } 833 834 static int qlcnic_sriov_clear_trans(struct qlcnic_vf_info *vf, 835 struct qlcnic_bc_trans *trans, u8 type) 836 { 837 struct qlcnic_trans_list *t_list; 838 unsigned long flags; 839 int ret = 0; 840 841 if (type == QLC_BC_RESPONSE) { 842 t_list = &vf->rcv_act; 843 spin_lock_irqsave(&t_list->lock, flags); 844 t_list->count--; 845 list_del(&trans->list); 846 if (t_list->count > 0) 847 ret = 1; 848 spin_unlock_irqrestore(&t_list->lock, flags); 849 } 850 if (type == QLC_BC_COMMAND) { 851 while (test_and_set_bit(QLC_BC_VF_SEND, &vf->state)) 852 msleep(100); 853 vf->send_cmd = NULL; 854 clear_bit(QLC_BC_VF_SEND, &vf->state); 855 } 856 return ret; 857 } 858 859 static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov, 860 struct qlcnic_vf_info *vf, 861 work_func_t func) 862 { 863 if (test_bit(QLC_BC_VF_FLR, &vf->state) || 864 vf->adapter->need_fw_reset) 865 return; 866 867 INIT_WORK(&vf->trans_work, func); 868 queue_work(sriov->bc.bc_trans_wq, &vf->trans_work); 869 } 870 871 static inline void qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans *trans) 872 { 873 struct completion *cmpl = &trans->resp_cmpl; 874 875 if (wait_for_completion_timeout(cmpl, QLC_MBOX_RESP_TIMEOUT)) 876 trans->trans_state = QLC_END; 877 else 878 trans->trans_state = QLC_ABORT; 879 880 return; 881 } 882 883 static void qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans *trans, 884 u8 type) 885 { 886 if (type == QLC_BC_RESPONSE) { 887 trans->curr_rsp_frag++; 888 if (trans->curr_rsp_frag < trans->rsp_hdr->num_frags) 889 trans->trans_state = QLC_INIT; 890 else 891 trans->trans_state = QLC_END; 892 } else { 893 trans->curr_req_frag++; 894 if (trans->curr_req_frag < trans->req_hdr->num_frags) 895 trans->trans_state = QLC_INIT; 896 else 897 trans->trans_state = QLC_WAIT_FOR_RESP; 898 } 899 } 900 901 static void qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans *trans, 902 u8 type) 903 { 904 struct qlcnic_vf_info *vf = trans->vf; 905 struct completion *cmpl = &vf->ch_free_cmpl; 906 907 if (!wait_for_completion_timeout(cmpl, QLC_MBOX_CH_FREE_TIMEOUT)) { 908 trans->trans_state = QLC_ABORT; 909 return; 910 } 911 912 clear_bit(QLC_BC_VF_CHANNEL, &vf->state); 913 qlcnic_sriov_handle_multi_frags(trans, type); 914 } 915 916 static void qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter *adapter, 917 u32 *hdr, u32 *pay, u32 size) 918 { 919 struct qlcnic_hardware_context *ahw = adapter->ahw; 920 u32 fw_mbx; 921 u8 i, max = 2, hdr_size, j; 922 923 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 924 max = (size / sizeof(u32)) + hdr_size; 925 926 fw_mbx = readl(QLCNIC_MBX_FW(ahw, 0)); 927 for (i = 2, j = 0; j < hdr_size; i++, j++) 928 *(hdr++) = readl(QLCNIC_MBX_FW(ahw, i)); 929 for (; j < max; i++, j++) 930 *(pay++) = readl(QLCNIC_MBX_FW(ahw, i)); 931 } 932 933 static int __qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info *vf) 934 { 935 int ret = -EBUSY; 936 u32 timeout = 10000; 937 938 do { 939 if (!test_and_set_bit(QLC_BC_VF_CHANNEL, &vf->state)) { 940 ret = 0; 941 break; 942 } 943 mdelay(1); 944 } while (--timeout); 945 946 return ret; 947 } 948 949 static int qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans *trans, u8 type) 950 { 951 struct qlcnic_vf_info *vf = trans->vf; 952 u32 pay_size, hdr_size; 953 u32 *hdr, *pay; 954 int ret; 955 u8 pci_func = trans->func_id; 956 957 if (__qlcnic_sriov_issue_bc_post(vf)) 958 return -EBUSY; 959 960 if (type == QLC_BC_COMMAND) { 961 hdr = (u32 *)(trans->req_hdr + trans->curr_req_frag); 962 pay = (u32 *)(trans->req_pay + trans->curr_req_frag); 963 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 964 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 965 trans->curr_req_frag); 966 pay_size = (pay_size / sizeof(u32)); 967 } else { 968 hdr = (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag); 969 pay = (u32 *)(trans->rsp_pay + trans->curr_rsp_frag); 970 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32)); 971 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size, 972 trans->curr_rsp_frag); 973 pay_size = (pay_size / sizeof(u32)); 974 } 975 976 ret = qlcnic_sriov_post_bc_msg(vf->adapter, hdr, pay, 977 pci_func, pay_size); 978 return ret; 979 } 980 981 static int __qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans *trans, 982 struct qlcnic_vf_info *vf, u8 type) 983 { 984 bool flag = true; 985 int err = -EIO; 986 987 while (flag) { 988 if (test_bit(QLC_BC_VF_FLR, &vf->state) || 989 vf->adapter->need_fw_reset) 990 trans->trans_state = QLC_ABORT; 991 992 switch (trans->trans_state) { 993 case QLC_INIT: 994 trans->trans_state = QLC_WAIT_FOR_CHANNEL_FREE; 995 if (qlcnic_sriov_issue_bc_post(trans, type)) 996 trans->trans_state = QLC_ABORT; 997 break; 998 case QLC_WAIT_FOR_CHANNEL_FREE: 999 qlcnic_sriov_wait_for_channel_free(trans, type); 1000 break; 1001 case QLC_WAIT_FOR_RESP: 1002 qlcnic_sriov_wait_for_resp(trans); 1003 break; 1004 case QLC_END: 1005 err = 0; 1006 flag = false; 1007 break; 1008 case QLC_ABORT: 1009 err = -EIO; 1010 flag = false; 1011 clear_bit(QLC_BC_VF_CHANNEL, &vf->state); 1012 break; 1013 default: 1014 err = -EIO; 1015 flag = false; 1016 } 1017 } 1018 return err; 1019 } 1020 1021 static int qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter *adapter, 1022 struct qlcnic_bc_trans *trans, int pci_func) 1023 { 1024 struct qlcnic_vf_info *vf; 1025 int err, index = qlcnic_sriov_func_to_index(adapter, pci_func); 1026 1027 if (index < 0) 1028 return -EIO; 1029 1030 vf = &adapter->ahw->sriov->vf_info[index]; 1031 trans->vf = vf; 1032 trans->func_id = pci_func; 1033 1034 if (!test_bit(QLC_BC_VF_STATE, &vf->state)) { 1035 if (qlcnic_sriov_pf_check(adapter)) 1036 return -EIO; 1037 if (qlcnic_sriov_vf_check(adapter) && 1038 trans->cmd_id != QLCNIC_BC_CMD_CHANNEL_INIT) 1039 return -EIO; 1040 } 1041 1042 mutex_lock(&vf->send_cmd_lock); 1043 vf->send_cmd = trans; 1044 err = __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_COMMAND); 1045 qlcnic_sriov_clear_trans(vf, trans, QLC_BC_COMMAND); 1046 mutex_unlock(&vf->send_cmd_lock); 1047 return err; 1048 } 1049 1050 static void __qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter *adapter, 1051 struct qlcnic_bc_trans *trans, 1052 struct qlcnic_cmd_args *cmd) 1053 { 1054 #ifdef CONFIG_QLCNIC_SRIOV 1055 if (qlcnic_sriov_pf_check(adapter)) { 1056 qlcnic_sriov_pf_process_bc_cmd(adapter, trans, cmd); 1057 return; 1058 } 1059 #endif 1060 cmd->rsp.arg[0] |= (0x9 << 25); 1061 return; 1062 } 1063 1064 static void qlcnic_sriov_process_bc_cmd(struct work_struct *work) 1065 { 1066 struct qlcnic_vf_info *vf = container_of(work, struct qlcnic_vf_info, 1067 trans_work); 1068 struct qlcnic_bc_trans *trans = NULL; 1069 struct qlcnic_adapter *adapter = vf->adapter; 1070 struct qlcnic_cmd_args cmd; 1071 u8 req; 1072 1073 if (adapter->need_fw_reset) 1074 return; 1075 1076 if (test_bit(QLC_BC_VF_FLR, &vf->state)) 1077 return; 1078 1079 trans = list_first_entry(&vf->rcv_act.wait_list, 1080 struct qlcnic_bc_trans, list); 1081 adapter = vf->adapter; 1082 1083 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, trans->req_hdr->seq_id, 1084 QLC_BC_RESPONSE)) 1085 goto cleanup_trans; 1086 1087 __qlcnic_sriov_process_bc_cmd(adapter, trans, &cmd); 1088 trans->trans_state = QLC_INIT; 1089 __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_RESPONSE); 1090 1091 cleanup_trans: 1092 qlcnic_free_mbx_args(&cmd); 1093 req = qlcnic_sriov_clear_trans(vf, trans, QLC_BC_RESPONSE); 1094 qlcnic_sriov_cleanup_transaction(trans); 1095 if (req) 1096 qlcnic_sriov_schedule_bc_cmd(adapter->ahw->sriov, vf, 1097 qlcnic_sriov_process_bc_cmd); 1098 } 1099 1100 static void qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr *hdr, 1101 struct qlcnic_vf_info *vf) 1102 { 1103 struct qlcnic_bc_trans *trans; 1104 u32 pay_size; 1105 1106 if (test_and_set_bit(QLC_BC_VF_SEND, &vf->state)) 1107 return; 1108 1109 trans = vf->send_cmd; 1110 1111 if (trans == NULL) 1112 goto clear_send; 1113 1114 if (trans->trans_id != hdr->seq_id) 1115 goto clear_send; 1116 1117 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size, 1118 trans->curr_rsp_frag); 1119 qlcnic_sriov_pull_bc_msg(vf->adapter, 1120 (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag), 1121 (u32 *)(trans->rsp_pay + trans->curr_rsp_frag), 1122 pay_size); 1123 if (++trans->curr_rsp_frag < trans->rsp_hdr->num_frags) 1124 goto clear_send; 1125 1126 complete(&trans->resp_cmpl); 1127 1128 clear_send: 1129 clear_bit(QLC_BC_VF_SEND, &vf->state); 1130 } 1131 1132 int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov, 1133 struct qlcnic_vf_info *vf, 1134 struct qlcnic_bc_trans *trans) 1135 { 1136 struct qlcnic_trans_list *t_list = &vf->rcv_act; 1137 1138 t_list->count++; 1139 list_add_tail(&trans->list, &t_list->wait_list); 1140 if (t_list->count == 1) 1141 qlcnic_sriov_schedule_bc_cmd(sriov, vf, 1142 qlcnic_sriov_process_bc_cmd); 1143 return 0; 1144 } 1145 1146 static int qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov, 1147 struct qlcnic_vf_info *vf, 1148 struct qlcnic_bc_trans *trans) 1149 { 1150 struct qlcnic_trans_list *t_list = &vf->rcv_act; 1151 1152 spin_lock(&t_list->lock); 1153 1154 __qlcnic_sriov_add_act_list(sriov, vf, trans); 1155 1156 spin_unlock(&t_list->lock); 1157 return 0; 1158 } 1159 1160 static void qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov *sriov, 1161 struct qlcnic_vf_info *vf, 1162 struct qlcnic_bc_hdr *hdr) 1163 { 1164 struct qlcnic_bc_trans *trans = NULL; 1165 struct list_head *node; 1166 u32 pay_size, curr_frag; 1167 u8 found = 0, active = 0; 1168 1169 spin_lock(&vf->rcv_pend.lock); 1170 if (vf->rcv_pend.count > 0) { 1171 list_for_each(node, &vf->rcv_pend.wait_list) { 1172 trans = list_entry(node, struct qlcnic_bc_trans, list); 1173 if (trans->trans_id == hdr->seq_id) { 1174 found = 1; 1175 break; 1176 } 1177 } 1178 } 1179 1180 if (found) { 1181 curr_frag = trans->curr_req_frag; 1182 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 1183 curr_frag); 1184 qlcnic_sriov_pull_bc_msg(vf->adapter, 1185 (u32 *)(trans->req_hdr + curr_frag), 1186 (u32 *)(trans->req_pay + curr_frag), 1187 pay_size); 1188 trans->curr_req_frag++; 1189 if (trans->curr_req_frag >= hdr->num_frags) { 1190 vf->rcv_pend.count--; 1191 list_del(&trans->list); 1192 active = 1; 1193 } 1194 } 1195 spin_unlock(&vf->rcv_pend.lock); 1196 1197 if (active) 1198 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) 1199 qlcnic_sriov_cleanup_transaction(trans); 1200 1201 return; 1202 } 1203 1204 static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov, 1205 struct qlcnic_bc_hdr *hdr, 1206 struct qlcnic_vf_info *vf) 1207 { 1208 struct qlcnic_bc_trans *trans; 1209 struct qlcnic_adapter *adapter = vf->adapter; 1210 struct qlcnic_cmd_args cmd; 1211 u32 pay_size; 1212 int err; 1213 u8 cmd_op; 1214 1215 if (adapter->need_fw_reset) 1216 return; 1217 1218 if (!test_bit(QLC_BC_VF_STATE, &vf->state) && 1219 hdr->op_type != QLC_BC_CMD && 1220 hdr->cmd_op != QLCNIC_BC_CMD_CHANNEL_INIT) 1221 return; 1222 1223 if (hdr->frag_num > 1) { 1224 qlcnic_sriov_handle_pending_trans(sriov, vf, hdr); 1225 return; 1226 } 1227 1228 cmd_op = hdr->cmd_op; 1229 if (qlcnic_sriov_alloc_bc_trans(&trans)) 1230 return; 1231 1232 if (hdr->op_type == QLC_BC_CMD) 1233 err = qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op); 1234 else 1235 err = qlcnic_alloc_mbx_args(&cmd, adapter, cmd_op); 1236 1237 if (err) { 1238 qlcnic_sriov_cleanup_transaction(trans); 1239 return; 1240 } 1241 1242 cmd.op_type = hdr->op_type; 1243 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, hdr->seq_id, 1244 QLC_BC_COMMAND)) { 1245 qlcnic_free_mbx_args(&cmd); 1246 qlcnic_sriov_cleanup_transaction(trans); 1247 return; 1248 } 1249 1250 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size, 1251 trans->curr_req_frag); 1252 qlcnic_sriov_pull_bc_msg(vf->adapter, 1253 (u32 *)(trans->req_hdr + trans->curr_req_frag), 1254 (u32 *)(trans->req_pay + trans->curr_req_frag), 1255 pay_size); 1256 trans->func_id = vf->pci_func; 1257 trans->vf = vf; 1258 trans->trans_id = hdr->seq_id; 1259 trans->curr_req_frag++; 1260 1261 if (qlcnic_sriov_soft_flr_check(adapter, trans, vf)) 1262 return; 1263 1264 if (trans->curr_req_frag == trans->req_hdr->num_frags) { 1265 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) { 1266 qlcnic_free_mbx_args(&cmd); 1267 qlcnic_sriov_cleanup_transaction(trans); 1268 } 1269 } else { 1270 spin_lock(&vf->rcv_pend.lock); 1271 list_add_tail(&trans->list, &vf->rcv_pend.wait_list); 1272 vf->rcv_pend.count++; 1273 spin_unlock(&vf->rcv_pend.lock); 1274 } 1275 } 1276 1277 static void qlcnic_sriov_handle_msg_event(struct qlcnic_sriov *sriov, 1278 struct qlcnic_vf_info *vf) 1279 { 1280 struct qlcnic_bc_hdr hdr; 1281 u32 *ptr = (u32 *)&hdr; 1282 u8 msg_type, i; 1283 1284 for (i = 2; i < 6; i++) 1285 ptr[i - 2] = readl(QLCNIC_MBX_FW(vf->adapter->ahw, i)); 1286 msg_type = hdr.msg_type; 1287 1288 switch (msg_type) { 1289 case QLC_BC_COMMAND: 1290 qlcnic_sriov_handle_bc_cmd(sriov, &hdr, vf); 1291 break; 1292 case QLC_BC_RESPONSE: 1293 qlcnic_sriov_handle_bc_resp(&hdr, vf); 1294 break; 1295 } 1296 } 1297 1298 static void qlcnic_sriov_handle_flr_event(struct qlcnic_sriov *sriov, 1299 struct qlcnic_vf_info *vf) 1300 { 1301 struct qlcnic_adapter *adapter = vf->adapter; 1302 1303 if (qlcnic_sriov_pf_check(adapter)) 1304 qlcnic_sriov_pf_handle_flr(sriov, vf); 1305 else 1306 dev_err(&adapter->pdev->dev, 1307 "Invalid event to VF. VF should not get FLR event\n"); 1308 } 1309 1310 void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *adapter, u32 event) 1311 { 1312 struct qlcnic_vf_info *vf; 1313 struct qlcnic_sriov *sriov; 1314 int index; 1315 u8 pci_func; 1316 1317 sriov = adapter->ahw->sriov; 1318 pci_func = qlcnic_sriov_target_func_id(event); 1319 index = qlcnic_sriov_func_to_index(adapter, pci_func); 1320 1321 if (index < 0) 1322 return; 1323 1324 vf = &sriov->vf_info[index]; 1325 vf->pci_func = pci_func; 1326 1327 if (qlcnic_sriov_channel_free_check(event)) 1328 complete(&vf->ch_free_cmpl); 1329 1330 if (qlcnic_sriov_flr_check(event)) { 1331 qlcnic_sriov_handle_flr_event(sriov, vf); 1332 return; 1333 } 1334 1335 if (qlcnic_sriov_bc_msg_check(event)) 1336 qlcnic_sriov_handle_msg_event(sriov, vf); 1337 } 1338 1339 int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable) 1340 { 1341 struct qlcnic_cmd_args cmd; 1342 int err; 1343 1344 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state)) 1345 return 0; 1346 1347 if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_BC_EVENT_SETUP)) 1348 return -ENOMEM; 1349 1350 if (enable) 1351 cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7); 1352 1353 err = qlcnic_83xx_mbx_op(adapter, &cmd); 1354 1355 if (err != QLCNIC_RCODE_SUCCESS) { 1356 dev_err(&adapter->pdev->dev, 1357 "Failed to %s bc events, err=%d\n", 1358 (enable ? "enable" : "disable"), err); 1359 } 1360 1361 qlcnic_free_mbx_args(&cmd); 1362 return err; 1363 } 1364 1365 static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter, 1366 struct qlcnic_bc_trans *trans) 1367 { 1368 u8 max = QLC_BC_CMD_MAX_RETRY_CNT; 1369 u32 state; 1370 1371 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1372 if (state == QLC_83XX_IDC_DEV_READY) { 1373 msleep(20); 1374 clear_bit(QLC_BC_VF_CHANNEL, &trans->vf->state); 1375 trans->trans_state = QLC_INIT; 1376 if (++adapter->fw_fail_cnt > max) 1377 return -EIO; 1378 else 1379 return 0; 1380 } 1381 1382 return -EIO; 1383 } 1384 1385 static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *adapter, 1386 struct qlcnic_cmd_args *cmd) 1387 { 1388 struct qlcnic_hardware_context *ahw = adapter->ahw; 1389 struct device *dev = &adapter->pdev->dev; 1390 struct qlcnic_bc_trans *trans; 1391 int err; 1392 u32 rsp_data, opcode, mbx_err_code, rsp; 1393 u16 seq = ++adapter->ahw->sriov->bc.trans_counter; 1394 u8 func = ahw->pci_func; 1395 1396 rsp = qlcnic_sriov_alloc_bc_trans(&trans); 1397 if (rsp) 1398 return rsp; 1399 1400 rsp = qlcnic_sriov_prepare_bc_hdr(trans, cmd, seq, QLC_BC_COMMAND); 1401 if (rsp) 1402 goto cleanup_transaction; 1403 1404 retry: 1405 if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) { 1406 rsp = -EIO; 1407 QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n", 1408 QLCNIC_MBX_RSP(cmd->req.arg[0]), func); 1409 goto err_out; 1410 } 1411 1412 err = qlcnic_sriov_send_bc_cmd(adapter, trans, func); 1413 if (err) { 1414 dev_err(dev, "MBX command 0x%x timed out for VF %d\n", 1415 (cmd->req.arg[0] & 0xffff), func); 1416 rsp = QLCNIC_RCODE_TIMEOUT; 1417 1418 /* After adapter reset PF driver may take some time to 1419 * respond to VF's request. Retry request till maximum retries. 1420 */ 1421 if ((trans->req_hdr->cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) && 1422 !qlcnic_sriov_retry_bc_cmd(adapter, trans)) 1423 goto retry; 1424 1425 goto err_out; 1426 } 1427 1428 rsp_data = cmd->rsp.arg[0]; 1429 mbx_err_code = QLCNIC_MBX_STATUS(rsp_data); 1430 opcode = QLCNIC_MBX_RSP(cmd->req.arg[0]); 1431 1432 if ((mbx_err_code == QLCNIC_MBX_RSP_OK) || 1433 (mbx_err_code == QLCNIC_MBX_PORT_RSP_OK)) { 1434 rsp = QLCNIC_RCODE_SUCCESS; 1435 } else { 1436 rsp = mbx_err_code; 1437 if (!rsp) 1438 rsp = 1; 1439 dev_err(dev, 1440 "MBX command 0x%x failed with err:0x%x for VF %d\n", 1441 opcode, mbx_err_code, func); 1442 } 1443 1444 err_out: 1445 if (rsp == QLCNIC_RCODE_TIMEOUT) { 1446 ahw->reset_context = 1; 1447 adapter->need_fw_reset = 1; 1448 clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status); 1449 } 1450 1451 cleanup_transaction: 1452 qlcnic_sriov_cleanup_transaction(trans); 1453 return rsp; 1454 } 1455 1456 int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_op) 1457 { 1458 struct qlcnic_cmd_args cmd; 1459 struct qlcnic_vf_info *vf = &adapter->ahw->sriov->vf_info[0]; 1460 int ret; 1461 1462 if (qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op)) 1463 return -ENOMEM; 1464 1465 ret = qlcnic_issue_cmd(adapter, &cmd); 1466 if (ret) { 1467 dev_err(&adapter->pdev->dev, 1468 "Failed bc channel %s %d\n", cmd_op ? "term" : "init", 1469 ret); 1470 goto out; 1471 } 1472 1473 cmd_op = (cmd.rsp.arg[0] & 0xff); 1474 if (cmd.rsp.arg[0] >> 25 == 2) 1475 return 2; 1476 if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) 1477 set_bit(QLC_BC_VF_STATE, &vf->state); 1478 else 1479 clear_bit(QLC_BC_VF_STATE, &vf->state); 1480 1481 out: 1482 qlcnic_free_mbx_args(&cmd); 1483 return ret; 1484 } 1485 1486 void qlcnic_vf_add_mc_list(struct net_device *netdev, u16 vlan) 1487 { 1488 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1489 struct qlcnic_mac_list_s *cur; 1490 struct list_head *head, tmp_list; 1491 1492 INIT_LIST_HEAD(&tmp_list); 1493 head = &adapter->vf_mc_list; 1494 netif_addr_lock_bh(netdev); 1495 1496 while (!list_empty(head)) { 1497 cur = list_entry(head->next, struct qlcnic_mac_list_s, list); 1498 list_move(&cur->list, &tmp_list); 1499 } 1500 1501 netif_addr_unlock_bh(netdev); 1502 1503 while (!list_empty(&tmp_list)) { 1504 cur = list_entry((&tmp_list)->next, 1505 struct qlcnic_mac_list_s, list); 1506 qlcnic_nic_add_mac(adapter, cur->mac_addr, vlan); 1507 list_del(&cur->list); 1508 kfree(cur); 1509 } 1510 } 1511 1512 void qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel *bc) 1513 { 1514 struct list_head *head = &bc->async_list; 1515 struct qlcnic_async_work_list *entry; 1516 1517 while (!list_empty(head)) { 1518 entry = list_entry(head->next, struct qlcnic_async_work_list, 1519 list); 1520 cancel_work_sync(&entry->work); 1521 list_del(&entry->list); 1522 kfree(entry); 1523 } 1524 } 1525 1526 static void qlcnic_sriov_vf_set_multi(struct net_device *netdev) 1527 { 1528 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1529 u16 vlan; 1530 1531 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state)) 1532 return; 1533 1534 vlan = adapter->ahw->sriov->vlan; 1535 __qlcnic_set_multi(netdev, vlan); 1536 } 1537 1538 static void qlcnic_sriov_handle_async_multi(struct work_struct *work) 1539 { 1540 struct qlcnic_async_work_list *entry; 1541 struct net_device *netdev; 1542 1543 entry = container_of(work, struct qlcnic_async_work_list, work); 1544 netdev = (struct net_device *)entry->ptr; 1545 1546 qlcnic_sriov_vf_set_multi(netdev); 1547 return; 1548 } 1549 1550 static struct qlcnic_async_work_list * 1551 qlcnic_sriov_get_free_node_async_work(struct qlcnic_back_channel *bc) 1552 { 1553 struct list_head *node; 1554 struct qlcnic_async_work_list *entry = NULL; 1555 u8 empty = 0; 1556 1557 list_for_each(node, &bc->async_list) { 1558 entry = list_entry(node, struct qlcnic_async_work_list, list); 1559 if (!work_pending(&entry->work)) { 1560 empty = 1; 1561 break; 1562 } 1563 } 1564 1565 if (!empty) { 1566 entry = kzalloc(sizeof(struct qlcnic_async_work_list), 1567 GFP_ATOMIC); 1568 if (entry == NULL) 1569 return NULL; 1570 list_add_tail(&entry->list, &bc->async_list); 1571 } 1572 1573 return entry; 1574 } 1575 1576 static void qlcnic_sriov_schedule_bc_async_work(struct qlcnic_back_channel *bc, 1577 work_func_t func, void *data) 1578 { 1579 struct qlcnic_async_work_list *entry = NULL; 1580 1581 entry = qlcnic_sriov_get_free_node_async_work(bc); 1582 if (!entry) 1583 return; 1584 1585 entry->ptr = data; 1586 INIT_WORK(&entry->work, func); 1587 queue_work(bc->bc_async_wq, &entry->work); 1588 } 1589 1590 void qlcnic_sriov_vf_schedule_multi(struct net_device *netdev) 1591 { 1592 1593 struct qlcnic_adapter *adapter = netdev_priv(netdev); 1594 struct qlcnic_back_channel *bc = &adapter->ahw->sriov->bc; 1595 1596 if (adapter->need_fw_reset) 1597 return; 1598 1599 qlcnic_sriov_schedule_bc_async_work(bc, qlcnic_sriov_handle_async_multi, 1600 netdev); 1601 } 1602 1603 static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter) 1604 { 1605 int err; 1606 1607 set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status); 1608 qlcnic_83xx_enable_mbx_intrpt(adapter); 1609 1610 err = qlcnic_sriov_cfg_bc_intr(adapter, 1); 1611 if (err) 1612 return err; 1613 1614 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT); 1615 if (err) 1616 goto err_out_cleanup_bc_intr; 1617 1618 err = qlcnic_sriov_vf_init_driver(adapter); 1619 if (err) 1620 goto err_out_term_channel; 1621 1622 return 0; 1623 1624 err_out_term_channel: 1625 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM); 1626 1627 err_out_cleanup_bc_intr: 1628 qlcnic_sriov_cfg_bc_intr(adapter, 0); 1629 return err; 1630 } 1631 1632 static void qlcnic_sriov_vf_attach(struct qlcnic_adapter *adapter) 1633 { 1634 struct net_device *netdev = adapter->netdev; 1635 1636 if (netif_running(netdev)) { 1637 if (!qlcnic_up(adapter, netdev)) 1638 qlcnic_restore_indev_addr(netdev, NETDEV_UP); 1639 } 1640 1641 netif_device_attach(netdev); 1642 } 1643 1644 static void qlcnic_sriov_vf_detach(struct qlcnic_adapter *adapter) 1645 { 1646 struct qlcnic_hardware_context *ahw = adapter->ahw; 1647 struct qlcnic_intrpt_config *intr_tbl = ahw->intr_tbl; 1648 struct net_device *netdev = adapter->netdev; 1649 u8 i, max_ints = ahw->num_msix - 1; 1650 1651 qlcnic_83xx_disable_mbx_intr(adapter); 1652 netif_device_detach(netdev); 1653 if (netif_running(netdev)) 1654 qlcnic_down(adapter, netdev); 1655 1656 for (i = 0; i < max_ints; i++) { 1657 intr_tbl[i].id = i; 1658 intr_tbl[i].enabled = 0; 1659 intr_tbl[i].src = 0; 1660 } 1661 ahw->reset_context = 0; 1662 } 1663 1664 static int qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter *adapter) 1665 { 1666 struct qlcnic_hardware_context *ahw = adapter->ahw; 1667 struct device *dev = &adapter->pdev->dev; 1668 struct qlc_83xx_idc *idc = &ahw->idc; 1669 u8 func = ahw->pci_func; 1670 u32 state; 1671 1672 if ((idc->prev_state == QLC_83XX_IDC_DEV_NEED_RESET) || 1673 (idc->prev_state == QLC_83XX_IDC_DEV_INIT)) { 1674 if (!qlcnic_sriov_vf_reinit_driver(adapter)) { 1675 qlcnic_sriov_vf_attach(adapter); 1676 adapter->fw_fail_cnt = 0; 1677 dev_info(dev, 1678 "%s: Reinitalization of VF 0x%x done after FW reset\n", 1679 __func__, func); 1680 } else { 1681 dev_err(dev, 1682 "%s: Reinitialization of VF 0x%x failed after FW reset\n", 1683 __func__, func); 1684 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE); 1685 dev_info(dev, "Current state 0x%x after FW reset\n", 1686 state); 1687 } 1688 } 1689 1690 return 0; 1691 } 1692 1693 static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter) 1694 { 1695 struct qlcnic_hardware_context *ahw = adapter->ahw; 1696 struct device *dev = &adapter->pdev->dev; 1697 struct qlc_83xx_idc *idc = &ahw->idc; 1698 u8 func = ahw->pci_func; 1699 u32 state; 1700 1701 adapter->reset_ctx_cnt++; 1702 1703 /* Skip the context reset and check if FW is hung */ 1704 if (adapter->reset_ctx_cnt < 3) { 1705 adapter->need_fw_reset = 1; 1706 clear_bit(QLC_83XX_MBX_READY, &idc->status); 1707 dev_info(dev, 1708 "Resetting context, wait here to check if FW is in failed state\n"); 1709 return 0; 1710 } 1711 1712 /* Check if number of resets exceed the threshold. 1713 * If it exceeds the threshold just fail the VF. 1714 */ 1715 if (adapter->reset_ctx_cnt > QLC_83XX_VF_RESET_FAIL_THRESH) { 1716 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status); 1717 adapter->tx_timeo_cnt = 0; 1718 adapter->fw_fail_cnt = 0; 1719 adapter->reset_ctx_cnt = 0; 1720 qlcnic_sriov_vf_detach(adapter); 1721 dev_err(dev, 1722 "Device context resets have exceeded the threshold, device interface will be shutdown\n"); 1723 return -EIO; 1724 } 1725 1726 dev_info(dev, "Resetting context of VF 0x%x\n", func); 1727 dev_info(dev, "%s: Context reset count %d for VF 0x%x\n", 1728 __func__, adapter->reset_ctx_cnt, func); 1729 set_bit(__QLCNIC_RESETTING, &adapter->state); 1730 adapter->need_fw_reset = 1; 1731 clear_bit(QLC_83XX_MBX_READY, &idc->status); 1732 qlcnic_sriov_vf_detach(adapter); 1733 adapter->need_fw_reset = 0; 1734 1735 if (!qlcnic_sriov_vf_reinit_driver(adapter)) { 1736 qlcnic_sriov_vf_attach(adapter); 1737 adapter->netdev->trans_start = jiffies; 1738 adapter->tx_timeo_cnt = 0; 1739 adapter->reset_ctx_cnt = 0; 1740 adapter->fw_fail_cnt = 0; 1741 dev_info(dev, "Done resetting context for VF 0x%x\n", func); 1742 } else { 1743 dev_err(dev, "%s: Reinitialization of VF 0x%x failed\n", 1744 __func__, func); 1745 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE); 1746 dev_info(dev, "%s: Current state 0x%x\n", __func__, state); 1747 } 1748 1749 return 0; 1750 } 1751 1752 static int qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter *adapter) 1753 { 1754 struct qlcnic_hardware_context *ahw = adapter->ahw; 1755 int ret = 0; 1756 1757 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) 1758 ret = qlcnic_sriov_vf_handle_dev_ready(adapter); 1759 else if (ahw->reset_context) 1760 ret = qlcnic_sriov_vf_handle_context_reset(adapter); 1761 1762 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1763 return ret; 1764 } 1765 1766 static int qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter *adapter) 1767 { 1768 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1769 1770 dev_err(&adapter->pdev->dev, "Device is in failed state\n"); 1771 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) 1772 qlcnic_sriov_vf_detach(adapter); 1773 1774 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status); 1775 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1776 return -EIO; 1777 } 1778 1779 static int 1780 qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter *adapter) 1781 { 1782 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1783 1784 dev_info(&adapter->pdev->dev, "Device is in quiescent state\n"); 1785 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) { 1786 set_bit(__QLCNIC_RESETTING, &adapter->state); 1787 adapter->tx_timeo_cnt = 0; 1788 adapter->reset_ctx_cnt = 0; 1789 clear_bit(QLC_83XX_MBX_READY, &idc->status); 1790 qlcnic_sriov_vf_detach(adapter); 1791 } 1792 1793 return 0; 1794 } 1795 1796 static int qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter *adapter) 1797 { 1798 struct qlc_83xx_idc *idc = &adapter->ahw->idc; 1799 u8 func = adapter->ahw->pci_func; 1800 1801 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) { 1802 dev_err(&adapter->pdev->dev, 1803 "Firmware hang detected by VF 0x%x\n", func); 1804 set_bit(__QLCNIC_RESETTING, &adapter->state); 1805 adapter->tx_timeo_cnt = 0; 1806 adapter->reset_ctx_cnt = 0; 1807 clear_bit(QLC_83XX_MBX_READY, &idc->status); 1808 qlcnic_sriov_vf_detach(adapter); 1809 } 1810 return 0; 1811 } 1812 1813 static int qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter *adapter) 1814 { 1815 dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__); 1816 return 0; 1817 } 1818 1819 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *work) 1820 { 1821 struct qlcnic_adapter *adapter; 1822 struct qlc_83xx_idc *idc; 1823 int ret = 0; 1824 1825 adapter = container_of(work, struct qlcnic_adapter, fw_work.work); 1826 idc = &adapter->ahw->idc; 1827 idc->curr_state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE); 1828 1829 switch (idc->curr_state) { 1830 case QLC_83XX_IDC_DEV_READY: 1831 ret = qlcnic_sriov_vf_idc_ready_state(adapter); 1832 break; 1833 case QLC_83XX_IDC_DEV_NEED_RESET: 1834 case QLC_83XX_IDC_DEV_INIT: 1835 ret = qlcnic_sriov_vf_idc_init_reset_state(adapter); 1836 break; 1837 case QLC_83XX_IDC_DEV_NEED_QUISCENT: 1838 ret = qlcnic_sriov_vf_idc_need_quiescent_state(adapter); 1839 break; 1840 case QLC_83XX_IDC_DEV_FAILED: 1841 ret = qlcnic_sriov_vf_idc_failed_state(adapter); 1842 break; 1843 case QLC_83XX_IDC_DEV_QUISCENT: 1844 break; 1845 default: 1846 ret = qlcnic_sriov_vf_idc_unknown_state(adapter); 1847 } 1848 1849 idc->prev_state = idc->curr_state; 1850 if (!ret && test_bit(QLC_83XX_MODULE_LOADED, &idc->status)) 1851 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state, 1852 idc->delay); 1853 } 1854 1855 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *adapter) 1856 { 1857 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) 1858 msleep(20); 1859 1860 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status); 1861 clear_bit(__QLCNIC_RESETTING, &adapter->state); 1862 cancel_delayed_work_sync(&adapter->fw_work); 1863 } 1864 1865 static int qlcnic_sriov_validate_vlan_cfg(struct qlcnic_sriov *sriov, 1866 u16 vid, u8 enable) 1867 { 1868 u16 vlan = sriov->vlan; 1869 u8 allowed = 0; 1870 int i; 1871 1872 if (sriov->vlan_mode != QLC_GUEST_VLAN_MODE) 1873 return -EINVAL; 1874 1875 if (enable) { 1876 if (vlan) 1877 return -EINVAL; 1878 1879 if (sriov->any_vlan) { 1880 for (i = 0; i < sriov->num_allowed_vlans; i++) { 1881 if (sriov->allowed_vlans[i] == vid) 1882 allowed = 1; 1883 } 1884 1885 if (!allowed) 1886 return -EINVAL; 1887 } 1888 } else { 1889 if (!vlan || vlan != vid) 1890 return -EINVAL; 1891 } 1892 1893 return 0; 1894 } 1895 1896 int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *adapter, 1897 u16 vid, u8 enable) 1898 { 1899 struct qlcnic_sriov *sriov = adapter->ahw->sriov; 1900 struct qlcnic_cmd_args cmd; 1901 int ret; 1902 1903 if (vid == 0) 1904 return 0; 1905 1906 ret = qlcnic_sriov_validate_vlan_cfg(sriov, vid, enable); 1907 if (ret) 1908 return ret; 1909 1910 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, 1911 QLCNIC_BC_CMD_CFG_GUEST_VLAN); 1912 if (ret) 1913 return ret; 1914 1915 cmd.req.arg[1] = (enable & 1) | vid << 16; 1916 1917 qlcnic_sriov_cleanup_async_list(&sriov->bc); 1918 ret = qlcnic_issue_cmd(adapter, &cmd); 1919 if (ret) { 1920 dev_err(&adapter->pdev->dev, 1921 "Failed to configure guest VLAN, err=%d\n", ret); 1922 } else { 1923 qlcnic_free_mac_list(adapter); 1924 1925 if (enable) 1926 sriov->vlan = vid; 1927 else 1928 sriov->vlan = 0; 1929 1930 qlcnic_sriov_vf_set_multi(adapter->netdev); 1931 } 1932 1933 qlcnic_free_mbx_args(&cmd); 1934 return ret; 1935 } 1936 1937 static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter) 1938 { 1939 struct list_head *head = &adapter->mac_list; 1940 struct qlcnic_mac_list_s *cur; 1941 u16 vlan; 1942 1943 vlan = adapter->ahw->sriov->vlan; 1944 1945 while (!list_empty(head)) { 1946 cur = list_entry(head->next, struct qlcnic_mac_list_s, list); 1947 qlcnic_sre_macaddr_change(adapter, cur->mac_addr, 1948 vlan, QLCNIC_MAC_DEL); 1949 list_del(&cur->list); 1950 kfree(cur); 1951 } 1952 } 1953