1 /* 2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/moduleparam.h> 18 #include <linux/etherdevice.h> 19 #include <linux/if_arp.h> 20 21 #include "wil6210.h" 22 #include "txrx.h" 23 #include "wmi.h" 24 #include "trace.h" 25 26 static uint max_assoc_sta = WIL6210_MAX_CID; 27 module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR); 28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP"); 29 30 int agg_wsize; /* = 0; */ 31 module_param(agg_wsize, int, S_IRUGO | S_IWUSR); 32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;" 33 " 0 - use default; < 0 - don't auto-establish"); 34 35 /** 36 * WMI event receiving - theory of operations 37 * 38 * When firmware about to report WMI event, it fills memory area 39 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for 40 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. 41 * 42 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the 43 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up 44 * and handles events within the @wmi_event_worker. Every event get detached 45 * from list, processed and deleted. 46 * 47 * Purpose for this mechanism is to release IRQ thread; otherwise, 48 * if WMI event handling involves another WMI command flow, this 2-nd flow 49 * won't be completed because of blocked IRQ thread. 50 */ 51 52 /** 53 * Addressing - theory of operations 54 * 55 * There are several buses present on the WIL6210 card. 56 * Same memory areas are visible at different address on 57 * the different busses. There are 3 main bus masters: 58 * - MAC CPU (ucode) 59 * - User CPU (firmware) 60 * - AHB (host) 61 * 62 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing 63 * AHB addresses starting from 0x880000 64 * 65 * Internally, firmware uses addresses that allows faster access but 66 * are invisible from the host. To read from these addresses, alternative 67 * AHB address must be used. 68 * 69 * Memory mapping 70 * Linker address PCI/Host address 71 * 0x880000 .. 0xa80000 2Mb BAR0 72 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM 73 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH 74 */ 75 76 /** 77 * @fw_mapping provides memory remapping table 78 * 79 * array size should be in sync with the declaration in the wil6210.h 80 */ 81 const struct fw_map fw_mapping[] = { 82 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */ 83 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */ 84 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */ 85 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */ 86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */ 87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */ 88 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */ 89 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */ 90 /* 91 * 920000..930000 ucode code RAM 92 * 930000..932000 ucode data RAM 93 * 932000..949000 back-door debug data 94 */ 95 }; 96 97 /** 98 * return AHB address for given firmware/ucode internal (linker) address 99 * @x - internal address 100 * If address have no valid AHB mapping, return 0 101 */ 102 static u32 wmi_addr_remap(u32 x) 103 { 104 uint i; 105 106 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 107 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)) 108 return x + fw_mapping[i].host - fw_mapping[i].from; 109 } 110 111 return 0; 112 } 113 114 /** 115 * Check address validity for WMI buffer; remap if needed 116 * @ptr - internal (linker) fw/ucode address 117 * 118 * Valid buffer should be DWORD aligned 119 * 120 * return address for accessing buffer from the host; 121 * if buffer is not valid, return NULL. 122 */ 123 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) 124 { 125 u32 off; 126 u32 ptr = le32_to_cpu(ptr_); 127 128 if (ptr % 4) 129 return NULL; 130 131 ptr = wmi_addr_remap(ptr); 132 if (ptr < WIL6210_FW_HOST_OFF) 133 return NULL; 134 135 off = HOSTADDR(ptr); 136 if (off > WIL6210_MEM_SIZE - 4) 137 return NULL; 138 139 return wil->csr + off; 140 } 141 142 /** 143 * Check address validity 144 */ 145 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) 146 { 147 u32 off; 148 149 if (ptr % 4) 150 return NULL; 151 152 if (ptr < WIL6210_FW_HOST_OFF) 153 return NULL; 154 155 off = HOSTADDR(ptr); 156 if (off > WIL6210_MEM_SIZE - 4) 157 return NULL; 158 159 return wil->csr + off; 160 } 161 162 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, 163 struct wil6210_mbox_hdr *hdr) 164 { 165 void __iomem *src = wmi_buffer(wil, ptr); 166 167 if (!src) 168 return -EINVAL; 169 170 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); 171 172 return 0; 173 } 174 175 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 176 { 177 struct { 178 struct wil6210_mbox_hdr hdr; 179 struct wil6210_mbox_hdr_wmi wmi; 180 } __packed cmd = { 181 .hdr = { 182 .type = WIL_MBOX_HDR_TYPE_WMI, 183 .flags = 0, 184 .len = cpu_to_le16(sizeof(cmd.wmi) + len), 185 }, 186 .wmi = { 187 .mid = 0, 188 .id = cpu_to_le16(cmdid), 189 }, 190 }; 191 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; 192 struct wil6210_mbox_ring_desc d_head; 193 u32 next_head; 194 void __iomem *dst; 195 void __iomem *head = wmi_addr(wil, r->head); 196 uint retry; 197 198 if (sizeof(cmd) + len > r->entry_size) { 199 wil_err(wil, "WMI size too large: %d bytes, max is %d\n", 200 (int)(sizeof(cmd) + len), r->entry_size); 201 return -ERANGE; 202 } 203 204 might_sleep(); 205 206 if (!test_bit(wil_status_fwready, wil->status)) { 207 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 208 return -EAGAIN; 209 } 210 211 if (!head) { 212 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); 213 return -EINVAL; 214 } 215 /* read Tx head till it is not busy */ 216 for (retry = 5; retry > 0; retry--) { 217 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); 218 if (d_head.sync == 0) 219 break; 220 msleep(20); 221 } 222 if (d_head.sync != 0) { 223 wil_err(wil, "WMI head busy\n"); 224 return -EBUSY; 225 } 226 /* next head */ 227 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); 228 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); 229 /* wait till FW finish with previous command */ 230 for (retry = 5; retry > 0; retry--) { 231 if (!test_bit(wil_status_fwready, wil->status)) { 232 wil_err(wil, "WMI: cannot send command while FW not ready\n"); 233 return -EAGAIN; 234 } 235 r->tail = wil_r(wil, RGF_MBOX + 236 offsetof(struct wil6210_mbox_ctl, tx.tail)); 237 if (next_head != r->tail) 238 break; 239 msleep(20); 240 } 241 if (next_head == r->tail) { 242 wil_err(wil, "WMI ring full\n"); 243 return -EBUSY; 244 } 245 dst = wmi_buffer(wil, d_head.addr); 246 if (!dst) { 247 wil_err(wil, "invalid WMI buffer: 0x%08x\n", 248 le32_to_cpu(d_head.addr)); 249 return -EINVAL; 250 } 251 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); 252 /* set command */ 253 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len); 254 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, 255 sizeof(cmd), true); 256 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, 257 len, true); 258 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); 259 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); 260 /* mark entry as full */ 261 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1); 262 /* advance next ptr */ 263 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head), 264 r->head = next_head); 265 266 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len); 267 268 /* interrupt to FW */ 269 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS), 270 SW_INT_MBOX); 271 272 return 0; 273 } 274 275 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) 276 { 277 int rc; 278 279 mutex_lock(&wil->wmi_mutex); 280 rc = __wmi_send(wil, cmdid, buf, len); 281 mutex_unlock(&wil->wmi_mutex); 282 283 return rc; 284 } 285 286 /*=== Event handlers ===*/ 287 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) 288 { 289 struct wireless_dev *wdev = wil->wdev; 290 struct wmi_ready_event *evt = d; 291 292 wil->fw_version = le32_to_cpu(evt->sw_version); 293 wil->n_mids = evt->numof_additional_mids; 294 295 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version, 296 evt->mac, wil->n_mids); 297 /* ignore MAC address, we already have it from the boot loader */ 298 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), 299 "%d", wil->fw_version); 300 301 wil_set_recovery_state(wil, fw_recovery_idle); 302 set_bit(wil_status_fwready, wil->status); 303 /* let the reset sequence continue */ 304 complete(&wil->wmi_ready); 305 } 306 307 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 308 { 309 struct wmi_rx_mgmt_packet_event *data = d; 310 struct wiphy *wiphy = wil_to_wiphy(wil); 311 struct ieee80211_mgmt *rx_mgmt_frame = 312 (struct ieee80211_mgmt *)data->payload; 313 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload); 314 int ch_no; 315 u32 freq; 316 struct ieee80211_channel *channel; 317 s32 signal; 318 __le16 fc; 319 u32 d_len; 320 u16 d_status; 321 322 if (flen < 0) { 323 wil_err(wil, "MGMT Rx: short event, len %d\n", len); 324 return; 325 } 326 327 d_len = le32_to_cpu(data->info.len); 328 if (d_len != flen) { 329 wil_err(wil, 330 "MGMT Rx: length mismatch, d_len %d should be %d\n", 331 d_len, flen); 332 return; 333 } 334 335 ch_no = data->info.channel + 1; 336 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ); 337 channel = ieee80211_get_channel(wiphy, freq); 338 signal = data->info.sqi; 339 d_status = le16_to_cpu(data->info.status); 340 fc = rx_mgmt_frame->frame_control; 341 342 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n", 343 data->info.channel, data->info.mcs, data->info.snr, 344 data->info.sqi); 345 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len, 346 le16_to_cpu(fc)); 347 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n", 348 data->info.qid, data->info.mid, data->info.cid); 349 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, 350 d_len, true); 351 352 if (!channel) { 353 wil_err(wil, "Frame on unsupported channel\n"); 354 return; 355 } 356 357 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { 358 struct cfg80211_bss *bss; 359 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); 360 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); 361 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); 362 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; 363 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, 364 u.beacon.variable); 365 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap); 366 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf); 367 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi); 368 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf, 369 ie_len, true); 370 371 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, 372 d_len, signal, GFP_KERNEL); 373 if (bss) { 374 wil_dbg_wmi(wil, "Added BSS %pM\n", 375 rx_mgmt_frame->bssid); 376 cfg80211_put_bss(wiphy, bss); 377 } else { 378 wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); 379 } 380 } else { 381 cfg80211_rx_mgmt(wil->wdev, freq, signal, 382 (void *)rx_mgmt_frame, d_len, 0); 383 } 384 } 385 386 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) 387 { 388 struct wmi_tx_mgmt_packet_event *data = d; 389 struct ieee80211_mgmt *mgmt_frame = 390 (struct ieee80211_mgmt *)data->payload; 391 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload); 392 393 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame, 394 flen, true); 395 } 396 397 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, 398 void *d, int len) 399 { 400 if (wil->scan_request) { 401 struct wmi_scan_complete_event *data = d; 402 bool aborted = (data->status != WMI_SCAN_SUCCESS); 403 404 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); 405 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n", 406 wil->scan_request, aborted); 407 408 del_timer_sync(&wil->scan_timer); 409 cfg80211_scan_done(wil->scan_request, aborted); 410 wil->scan_request = NULL; 411 } else { 412 wil_err(wil, "SCAN_COMPLETE while not scanning\n"); 413 } 414 } 415 416 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) 417 { 418 struct net_device *ndev = wil_to_ndev(wil); 419 struct wireless_dev *wdev = wil->wdev; 420 struct wmi_connect_event *evt = d; 421 int ch; /* channel number */ 422 struct station_info sinfo; 423 u8 *assoc_req_ie, *assoc_resp_ie; 424 size_t assoc_req_ielen, assoc_resp_ielen; 425 /* capinfo(u16) + listen_interval(u16) + IEs */ 426 const size_t assoc_req_ie_offset = sizeof(u16) * 2; 427 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ 428 const size_t assoc_resp_ie_offset = sizeof(u16) * 3; 429 int rc; 430 431 if (len < sizeof(*evt)) { 432 wil_err(wil, "Connect event too short : %d bytes\n", len); 433 return; 434 } 435 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + 436 evt->assoc_resp_len) { 437 wil_err(wil, 438 "Connect event corrupted : %d != %d + %d + %d + %d\n", 439 len, (int)sizeof(*evt), evt->beacon_ie_len, 440 evt->assoc_req_len, evt->assoc_resp_len); 441 return; 442 } 443 if (evt->cid >= WIL6210_MAX_CID) { 444 wil_err(wil, "Connect CID invalid : %d\n", evt->cid); 445 return; 446 } 447 448 ch = evt->channel + 1; 449 wil_info(wil, "Connect %pM channel [%d] cid %d\n", 450 evt->bssid, ch, evt->cid); 451 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, 452 evt->assoc_info, len - sizeof(*evt), true); 453 454 /* figure out IE's */ 455 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + 456 assoc_req_ie_offset]; 457 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; 458 if (evt->assoc_req_len <= assoc_req_ie_offset) { 459 assoc_req_ie = NULL; 460 assoc_req_ielen = 0; 461 } 462 463 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + 464 evt->assoc_req_len + 465 assoc_resp_ie_offset]; 466 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; 467 if (evt->assoc_resp_len <= assoc_resp_ie_offset) { 468 assoc_resp_ie = NULL; 469 assoc_resp_ielen = 0; 470 } 471 472 mutex_lock(&wil->mutex); 473 if (test_bit(wil_status_resetting, wil->status) || 474 !test_bit(wil_status_fwready, wil->status)) { 475 wil_err(wil, "status_resetting, cancel connect event, CID %d\n", 476 evt->cid); 477 mutex_unlock(&wil->mutex); 478 /* no need for cleanup, wil_reset will do that */ 479 return; 480 } 481 482 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 483 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 484 if (!test_bit(wil_status_fwconnecting, wil->status)) { 485 wil_err(wil, "Not in connecting state\n"); 486 mutex_unlock(&wil->mutex); 487 return; 488 } 489 del_timer_sync(&wil->connect_timer); 490 } 491 492 /* FIXME FW can transmit only ucast frames to peer */ 493 /* FIXME real ring_id instead of hard coded 0 */ 494 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid); 495 wil->sta[evt->cid].status = wil_sta_conn_pending; 496 497 rc = wil_tx_init(wil, evt->cid); 498 if (rc) { 499 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n", 500 __func__, evt->cid, rc); 501 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr, 502 WLAN_REASON_UNSPECIFIED, false); 503 } else { 504 wil_info(wil, "%s: successful connection to CID %d\n", 505 __func__, evt->cid); 506 } 507 508 if ((wdev->iftype == NL80211_IFTYPE_STATION) || 509 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { 510 if (rc) { 511 netif_tx_stop_all_queues(ndev); 512 netif_carrier_off(ndev); 513 wil_err(wil, 514 "%s: cfg80211_connect_result with failure\n", 515 __func__); 516 cfg80211_connect_result(ndev, evt->bssid, NULL, 0, 517 NULL, 0, 518 WLAN_STATUS_UNSPECIFIED_FAILURE, 519 GFP_KERNEL); 520 goto out; 521 } else { 522 cfg80211_connect_result(ndev, evt->bssid, 523 assoc_req_ie, assoc_req_ielen, 524 assoc_resp_ie, assoc_resp_ielen, 525 WLAN_STATUS_SUCCESS, 526 GFP_KERNEL); 527 } 528 } else if ((wdev->iftype == NL80211_IFTYPE_AP) || 529 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { 530 if (rc) 531 goto out; 532 533 memset(&sinfo, 0, sizeof(sinfo)); 534 535 sinfo.generation = wil->sinfo_gen++; 536 537 if (assoc_req_ie) { 538 sinfo.assoc_req_ies = assoc_req_ie; 539 sinfo.assoc_req_ies_len = assoc_req_ielen; 540 } 541 542 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); 543 } else { 544 wil_err(wil, "%s: unhandled iftype %d for CID %d\n", 545 __func__, wdev->iftype, evt->cid); 546 goto out; 547 } 548 549 wil->sta[evt->cid].status = wil_sta_connected; 550 set_bit(wil_status_fwconnected, wil->status); 551 netif_tx_wake_all_queues(ndev); 552 553 out: 554 if (rc) 555 wil->sta[evt->cid].status = wil_sta_unused; 556 clear_bit(wil_status_fwconnecting, wil->status); 557 mutex_unlock(&wil->mutex); 558 } 559 560 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, 561 void *d, int len) 562 { 563 struct wmi_disconnect_event *evt = d; 564 u16 reason_code = le16_to_cpu(evt->protocol_reason_status); 565 566 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 567 evt->bssid, reason_code, evt->disconnect_reason); 568 569 wil->sinfo_gen++; 570 571 mutex_lock(&wil->mutex); 572 wil6210_disconnect(wil, evt->bssid, reason_code, true); 573 mutex_unlock(&wil->mutex); 574 } 575 576 /* 577 * Firmware reports EAPOL frame using WME event. 578 * Reconstruct Ethernet frame and deliver it via normal Rx 579 */ 580 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, 581 void *d, int len) 582 { 583 struct net_device *ndev = wil_to_ndev(wil); 584 struct wmi_eapol_rx_event *evt = d; 585 u16 eapol_len = le16_to_cpu(evt->eapol_len); 586 int sz = eapol_len + ETH_HLEN; 587 struct sk_buff *skb; 588 struct ethhdr *eth; 589 int cid; 590 struct wil_net_stats *stats = NULL; 591 592 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len, 593 evt->src_mac); 594 595 cid = wil_find_cid(wil, evt->src_mac); 596 if (cid >= 0) 597 stats = &wil->sta[cid].stats; 598 599 if (eapol_len > 196) { /* TODO: revisit size limit */ 600 wil_err(wil, "EAPOL too large\n"); 601 return; 602 } 603 604 skb = alloc_skb(sz, GFP_KERNEL); 605 if (!skb) { 606 wil_err(wil, "Failed to allocate skb\n"); 607 return; 608 } 609 610 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); 611 ether_addr_copy(eth->h_dest, ndev->dev_addr); 612 ether_addr_copy(eth->h_source, evt->src_mac); 613 eth->h_proto = cpu_to_be16(ETH_P_PAE); 614 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); 615 skb->protocol = eth_type_trans(skb, ndev); 616 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { 617 ndev->stats.rx_packets++; 618 ndev->stats.rx_bytes += sz; 619 if (stats) { 620 stats->rx_packets++; 621 stats->rx_bytes += sz; 622 } 623 } else { 624 ndev->stats.rx_dropped++; 625 if (stats) 626 stats->rx_dropped++; 627 } 628 } 629 630 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len) 631 { 632 struct wmi_vring_en_event *evt = d; 633 u8 vri = evt->vring_index; 634 635 wil_dbg_wmi(wil, "Enable vring %d\n", vri); 636 637 if (vri >= ARRAY_SIZE(wil->vring_tx)) { 638 wil_err(wil, "Enable for invalid vring %d\n", vri); 639 return; 640 } 641 wil->vring_tx_data[vri].dot1x_open = true; 642 if (vri == wil->bcast_vring) /* no BA for bcast */ 643 return; 644 if (agg_wsize >= 0) 645 wil_addba_tx_request(wil, vri, agg_wsize); 646 } 647 648 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d, 649 int len) 650 { 651 struct wmi_vring_ba_status_event *evt = d; 652 struct vring_tx_data *txdata; 653 654 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n", 655 evt->ringid, 656 evt->status == WMI_BA_AGREED ? "OK" : "N/A", 657 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout), 658 evt->amsdu ? "+" : "-"); 659 660 if (evt->ringid >= WIL6210_MAX_TX_RINGS) { 661 wil_err(wil, "invalid ring id %d\n", evt->ringid); 662 return; 663 } 664 665 if (evt->status != WMI_BA_AGREED) { 666 evt->ba_timeout = 0; 667 evt->agg_wsize = 0; 668 evt->amsdu = 0; 669 } 670 671 txdata = &wil->vring_tx_data[evt->ringid]; 672 673 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout); 674 txdata->agg_wsize = evt->agg_wsize; 675 txdata->agg_amsdu = evt->amsdu; 676 txdata->addba_in_progress = false; 677 } 678 679 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d, 680 int len) 681 { 682 struct wmi_rcp_addba_req_event *evt = d; 683 684 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token, 685 evt->ba_param_set, evt->ba_timeout, 686 evt->ba_seq_ctrl); 687 } 688 689 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) 690 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 691 { 692 struct wmi_delba_event *evt = d; 693 u8 cid, tid; 694 u16 reason = __le16_to_cpu(evt->reason); 695 struct wil_sta_info *sta; 696 struct wil_tid_ampdu_rx *r; 697 698 might_sleep(); 699 parse_cidxtid(evt->cidxtid, &cid, &tid); 700 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n", 701 cid, tid, 702 evt->from_initiator ? "originator" : "recipient", 703 reason); 704 if (!evt->from_initiator) { 705 int i; 706 /* find Tx vring it belongs to */ 707 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) { 708 if ((wil->vring2cid_tid[i][0] == cid) && 709 (wil->vring2cid_tid[i][1] == tid)) { 710 struct vring_tx_data *txdata = 711 &wil->vring_tx_data[i]; 712 713 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i); 714 txdata->agg_timeout = 0; 715 txdata->agg_wsize = 0; 716 txdata->addba_in_progress = false; 717 718 break; /* max. 1 matching ring */ 719 } 720 } 721 if (i >= ARRAY_SIZE(wil->vring2cid_tid)) 722 wil_err(wil, "DELBA: unable to find Tx vring\n"); 723 return; 724 } 725 726 sta = &wil->sta[cid]; 727 728 spin_lock_bh(&sta->tid_rx_lock); 729 730 r = sta->tid_rx[tid]; 731 sta->tid_rx[tid] = NULL; 732 wil_tid_ampdu_rx_free(wil, r); 733 734 spin_unlock_bh(&sta->tid_rx_lock); 735 } 736 737 /** 738 * Some events are ignored for purpose; and need not be interpreted as 739 * "unhandled events" 740 */ 741 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) 742 { 743 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len); 744 } 745 746 static const struct { 747 int eventid; 748 void (*handler)(struct wil6210_priv *wil, int eventid, 749 void *data, int data_len); 750 } wmi_evt_handlers[] = { 751 {WMI_READY_EVENTID, wmi_evt_ready}, 752 {WMI_FW_READY_EVENTID, wmi_evt_ignore}, 753 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, 754 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt}, 755 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, 756 {WMI_CONNECT_EVENTID, wmi_evt_connect}, 757 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, 758 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, 759 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status}, 760 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req}, 761 {WMI_DELBA_EVENTID, wmi_evt_delba}, 762 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, 763 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, 764 }; 765 766 /* 767 * Run in IRQ context 768 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev 769 * that will be eventually handled by the @wmi_event_worker in the thread 770 * context of thread "wil6210_wmi" 771 */ 772 void wmi_recv_cmd(struct wil6210_priv *wil) 773 { 774 struct wil6210_mbox_ring_desc d_tail; 775 struct wil6210_mbox_hdr hdr; 776 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; 777 struct pending_wmi_event *evt; 778 u8 *cmd; 779 void __iomem *src; 780 ulong flags; 781 unsigned n; 782 unsigned int num_immed_reply = 0; 783 784 if (!test_bit(wil_status_mbox_ready, wil->status)) { 785 wil_err(wil, "Reset in progress. Cannot handle WMI event\n"); 786 return; 787 } 788 789 for (n = 0;; n++) { 790 u16 len; 791 bool q; 792 bool immed_reply = false; 793 794 r->head = wil_r(wil, RGF_MBOX + 795 offsetof(struct wil6210_mbox_ctl, rx.head)); 796 if (r->tail == r->head) 797 break; 798 799 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n", 800 r->head, r->tail); 801 /* read cmd descriptor from tail */ 802 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), 803 sizeof(struct wil6210_mbox_ring_desc)); 804 if (d_tail.sync == 0) { 805 wil_err(wil, "Mbox evt not owned by FW?\n"); 806 break; 807 } 808 809 /* read cmd header from descriptor */ 810 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { 811 wil_err(wil, "Mbox evt at 0x%08x?\n", 812 le32_to_cpu(d_tail.addr)); 813 break; 814 } 815 len = le16_to_cpu(hdr.len); 816 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n", 817 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), 818 hdr.flags); 819 820 /* read cmd buffer from descriptor */ 821 src = wmi_buffer(wil, d_tail.addr) + 822 sizeof(struct wil6210_mbox_hdr); 823 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, 824 event.wmi) + len, 4), 825 GFP_KERNEL); 826 if (!evt) 827 break; 828 829 evt->event.hdr = hdr; 830 cmd = (void *)&evt->event.wmi; 831 wil_memcpy_fromio_32(cmd, src, len); 832 /* mark entry as empty */ 833 wil_w(wil, r->tail + 834 offsetof(struct wil6210_mbox_ring_desc, sync), 0); 835 /* indicate */ 836 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && 837 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 838 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi; 839 u16 id = le16_to_cpu(wmi->id); 840 u32 tstamp = le32_to_cpu(wmi->timestamp); 841 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 842 if (wil->reply_id && wil->reply_id == id) { 843 if (wil->reply_buf) { 844 memcpy(wil->reply_buf, wmi, 845 min(len, wil->reply_size)); 846 immed_reply = true; 847 } 848 } 849 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 850 851 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n", 852 id, wmi->mid, tstamp); 853 trace_wil6210_wmi_event(wmi, &wmi[1], 854 len - sizeof(*wmi)); 855 } 856 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1, 857 &evt->event.hdr, sizeof(hdr) + len, true); 858 859 /* advance tail */ 860 r->tail = r->base + ((r->tail - r->base + 861 sizeof(struct wil6210_mbox_ring_desc)) % r->size); 862 wil_w(wil, RGF_MBOX + 863 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail); 864 865 if (immed_reply) { 866 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 867 __func__, wil->reply_id); 868 kfree(evt); 869 num_immed_reply++; 870 complete(&wil->wmi_call); 871 } else { 872 /* add to the pending list */ 873 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 874 list_add_tail(&evt->list, &wil->pending_wmi_ev); 875 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 876 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker); 877 wil_dbg_wmi(wil, "queue_work -> %d\n", q); 878 } 879 } 880 /* normally, 1 event per IRQ should be processed */ 881 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__, 882 n - num_immed_reply, num_immed_reply); 883 } 884 885 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, 886 u16 reply_id, void *reply, u8 reply_size, int to_msec) 887 { 888 int rc; 889 unsigned long remain; 890 891 mutex_lock(&wil->wmi_mutex); 892 893 spin_lock(&wil->wmi_ev_lock); 894 wil->reply_id = reply_id; 895 wil->reply_buf = reply; 896 wil->reply_size = reply_size; 897 spin_unlock(&wil->wmi_ev_lock); 898 899 rc = __wmi_send(wil, cmdid, buf, len); 900 if (rc) 901 goto out; 902 903 remain = wait_for_completion_timeout(&wil->wmi_call, 904 msecs_to_jiffies(to_msec)); 905 if (0 == remain) { 906 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", 907 cmdid, reply_id, to_msec); 908 rc = -ETIME; 909 } else { 910 wil_dbg_wmi(wil, 911 "wmi_call(0x%04x->0x%04x) completed in %d msec\n", 912 cmdid, reply_id, 913 to_msec - jiffies_to_msecs(remain)); 914 } 915 916 out: 917 spin_lock(&wil->wmi_ev_lock); 918 wil->reply_id = 0; 919 wil->reply_buf = NULL; 920 wil->reply_size = 0; 921 spin_unlock(&wil->wmi_ev_lock); 922 923 mutex_unlock(&wil->wmi_mutex); 924 925 return rc; 926 } 927 928 int wmi_echo(struct wil6210_priv *wil) 929 { 930 struct wmi_echo_cmd cmd = { 931 .value = cpu_to_le32(0x12345678), 932 }; 933 934 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), 935 WMI_ECHO_RSP_EVENTID, NULL, 0, 50); 936 } 937 938 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) 939 { 940 struct wmi_set_mac_address_cmd cmd; 941 942 ether_addr_copy(cmd.mac, addr); 943 944 wil_dbg_wmi(wil, "Set MAC %pM\n", addr); 945 946 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); 947 } 948 949 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, 950 u8 chan, u8 hidden_ssid) 951 { 952 int rc; 953 954 struct wmi_pcp_start_cmd cmd = { 955 .bcon_interval = cpu_to_le16(bi), 956 .network_type = wmi_nettype, 957 .disable_sec_offload = 1, 958 .channel = chan - 1, 959 .pcp_max_assoc_sta = max_assoc_sta, 960 .hidden_ssid = hidden_ssid, 961 }; 962 struct { 963 struct wil6210_mbox_hdr_wmi wmi; 964 struct wmi_pcp_started_event evt; 965 } __packed reply; 966 967 if (!wil->privacy) 968 cmd.disable_sec = 1; 969 970 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) || 971 (cmd.pcp_max_assoc_sta <= 0)) { 972 wil_info(wil, 973 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n", 974 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID); 975 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID; 976 } 977 978 /* 979 * Processing time may be huge, in case of secure AP it takes about 980 * 3500ms for FW to start AP 981 */ 982 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd), 983 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000); 984 if (rc) 985 return rc; 986 987 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) 988 rc = -EINVAL; 989 990 return rc; 991 } 992 993 int wmi_pcp_stop(struct wil6210_priv *wil) 994 { 995 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0, 996 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20); 997 } 998 999 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) 1000 { 1001 struct wmi_set_ssid_cmd cmd = { 1002 .ssid_len = cpu_to_le32(ssid_len), 1003 }; 1004 1005 if (ssid_len > sizeof(cmd.ssid)) 1006 return -EINVAL; 1007 1008 memcpy(cmd.ssid, ssid, ssid_len); 1009 1010 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); 1011 } 1012 1013 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) 1014 { 1015 int rc; 1016 struct { 1017 struct wil6210_mbox_hdr_wmi wmi; 1018 struct wmi_set_ssid_cmd cmd; 1019 } __packed reply; 1020 int len; /* reply.cmd.ssid_len in CPU order */ 1021 1022 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, 1023 &reply, sizeof(reply), 20); 1024 if (rc) 1025 return rc; 1026 1027 len = le32_to_cpu(reply.cmd.ssid_len); 1028 if (len > sizeof(reply.cmd.ssid)) 1029 return -EINVAL; 1030 1031 *ssid_len = len; 1032 memcpy(ssid, reply.cmd.ssid, len); 1033 1034 return 0; 1035 } 1036 1037 int wmi_set_channel(struct wil6210_priv *wil, int channel) 1038 { 1039 struct wmi_set_pcp_channel_cmd cmd = { 1040 .channel = channel - 1, 1041 }; 1042 1043 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); 1044 } 1045 1046 int wmi_get_channel(struct wil6210_priv *wil, int *channel) 1047 { 1048 int rc; 1049 struct { 1050 struct wil6210_mbox_hdr_wmi wmi; 1051 struct wmi_set_pcp_channel_cmd cmd; 1052 } __packed reply; 1053 1054 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, 1055 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); 1056 if (rc) 1057 return rc; 1058 1059 if (reply.cmd.channel > 3) 1060 return -EINVAL; 1061 1062 *channel = reply.cmd.channel + 1; 1063 1064 return 0; 1065 } 1066 1067 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel) 1068 { 1069 struct wmi_p2p_cfg_cmd cmd = { 1070 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD, 1071 .channel = channel - 1, 1072 }; 1073 1074 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd)); 1075 } 1076 1077 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, 1078 const void *mac_addr, int key_usage) 1079 { 1080 struct wmi_delete_cipher_key_cmd cmd = { 1081 .key_index = key_index, 1082 }; 1083 1084 if (mac_addr) 1085 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1086 1087 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1088 } 1089 1090 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, 1091 const void *mac_addr, int key_len, const void *key, 1092 int key_usage) 1093 { 1094 struct wmi_add_cipher_key_cmd cmd = { 1095 .key_index = key_index, 1096 .key_usage = key_usage, 1097 .key_len = key_len, 1098 }; 1099 1100 if (!key || (key_len > sizeof(cmd.key))) 1101 return -EINVAL; 1102 1103 memcpy(cmd.key, key, key_len); 1104 if (mac_addr) 1105 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); 1106 1107 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); 1108 } 1109 1110 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) 1111 { 1112 static const char *const names[] = { 1113 [WMI_FRAME_BEACON] = "BEACON", 1114 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ", 1115 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP", 1116 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ", 1117 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP", 1118 }; 1119 int rc; 1120 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; 1121 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); 1122 1123 if (!cmd) { 1124 rc = -ENOMEM; 1125 goto out; 1126 } 1127 if (!ie) 1128 ie_len = 0; 1129 1130 cmd->mgmt_frm_type = type; 1131 /* BUG: FW API define ieLen as u8. Will fix FW */ 1132 cmd->ie_len = cpu_to_le16(ie_len); 1133 memcpy(cmd->ie_info, ie, ie_len); 1134 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len); 1135 kfree(cmd); 1136 out: 1137 if (rc) { 1138 const char *name = type < ARRAY_SIZE(names) ? 1139 names[type] : "??"; 1140 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc); 1141 } 1142 1143 return rc; 1144 } 1145 1146 /** 1147 * wmi_rxon - turn radio on/off 1148 * @on: turn on if true, off otherwise 1149 * 1150 * Only switch radio. Channel should be set separately. 1151 * No timeout for rxon - radio turned on forever unless some other call 1152 * turns it off 1153 */ 1154 int wmi_rxon(struct wil6210_priv *wil, bool on) 1155 { 1156 int rc; 1157 struct { 1158 struct wil6210_mbox_hdr_wmi wmi; 1159 struct wmi_listen_started_event evt; 1160 } __packed reply; 1161 1162 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off"); 1163 1164 if (on) { 1165 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0, 1166 WMI_LISTEN_STARTED_EVENTID, 1167 &reply, sizeof(reply), 100); 1168 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS)) 1169 rc = -EINVAL; 1170 } else { 1171 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0, 1172 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20); 1173 } 1174 1175 return rc; 1176 } 1177 1178 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring) 1179 { 1180 struct wireless_dev *wdev = wil->wdev; 1181 struct net_device *ndev = wil_to_ndev(wil); 1182 struct wmi_cfg_rx_chain_cmd cmd = { 1183 .action = WMI_RX_CHAIN_ADD, 1184 .rx_sw_ring = { 1185 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)), 1186 .ring_mem_base = cpu_to_le64(vring->pa), 1187 .ring_size = cpu_to_le16(vring->size), 1188 }, 1189 .mid = 0, /* TODO - what is it? */ 1190 .decap_trans_type = WMI_DECAP_TYPE_802_3, 1191 .reorder_type = WMI_RX_SW_REORDER, 1192 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh), 1193 }; 1194 struct { 1195 struct wil6210_mbox_hdr_wmi wmi; 1196 struct wmi_cfg_rx_chain_done_event evt; 1197 } __packed evt; 1198 int rc; 1199 1200 if (wdev->iftype == NL80211_IFTYPE_MONITOR) { 1201 struct ieee80211_channel *ch = wdev->preset_chandef.chan; 1202 1203 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); 1204 if (ch) 1205 cmd.sniffer_cfg.channel = ch->hw_value - 1; 1206 cmd.sniffer_cfg.phy_info_mode = 1207 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); 1208 cmd.sniffer_cfg.phy_support = 1209 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) 1210 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS); 1211 } else { 1212 /* Initialize offload (in non-sniffer mode). 1213 * Linux IP stack always calculates IP checksum 1214 * HW always calculate TCP/UDP checksum 1215 */ 1216 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS); 1217 } 1218 1219 if (rx_align_2) 1220 cmd.l2_802_3_offload_ctrl |= 1221 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK; 1222 1223 /* typical time for secure PCP is 840ms */ 1224 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), 1225 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); 1226 if (rc) 1227 return rc; 1228 1229 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); 1230 1231 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n", 1232 le32_to_cpu(evt.evt.status), vring->hwtail); 1233 1234 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS) 1235 rc = -EINVAL; 1236 1237 return rc; 1238 } 1239 1240 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) 1241 { 1242 int rc; 1243 struct wmi_temp_sense_cmd cmd = { 1244 .measure_baseband_en = cpu_to_le32(!!t_bb), 1245 .measure_rf_en = cpu_to_le32(!!t_rf), 1246 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW), 1247 }; 1248 struct { 1249 struct wil6210_mbox_hdr_wmi wmi; 1250 struct wmi_temp_sense_done_event evt; 1251 } __packed reply; 1252 1253 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd), 1254 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100); 1255 if (rc) 1256 return rc; 1257 1258 if (t_bb) 1259 *t_bb = le32_to_cpu(reply.evt.baseband_t1000); 1260 if (t_rf) 1261 *t_rf = le32_to_cpu(reply.evt.rf_t1000); 1262 1263 return 0; 1264 } 1265 1266 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason, 1267 bool full_disconnect) 1268 { 1269 int rc; 1270 u16 reason_code; 1271 struct wmi_disconnect_sta_cmd cmd = { 1272 .disconnect_reason = cpu_to_le16(reason), 1273 }; 1274 struct { 1275 struct wil6210_mbox_hdr_wmi wmi; 1276 struct wmi_disconnect_event evt; 1277 } __packed reply; 1278 1279 ether_addr_copy(cmd.dst_mac, mac); 1280 1281 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); 1282 1283 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), 1284 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); 1285 /* failure to disconnect in reasonable time treated as FW error */ 1286 if (rc) { 1287 wil_fw_error_recovery(wil); 1288 return rc; 1289 } 1290 1291 if (full_disconnect) { 1292 /* call event handler manually after processing wmi_call, 1293 * to avoid deadlock - disconnect event handler acquires 1294 * wil->mutex while it is already held here 1295 */ 1296 reason_code = le16_to_cpu(reply.evt.protocol_reason_status); 1297 1298 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", 1299 reply.evt.bssid, reason_code, 1300 reply.evt.disconnect_reason); 1301 1302 wil->sinfo_gen++; 1303 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); 1304 } 1305 return 0; 1306 } 1307 1308 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout) 1309 { 1310 struct wmi_vring_ba_en_cmd cmd = { 1311 .ringid = ringid, 1312 .agg_max_wsize = size, 1313 .ba_timeout = cpu_to_le16(timeout), 1314 .amsdu = 0, 1315 }; 1316 1317 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__, 1318 ringid, size, timeout); 1319 1320 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd)); 1321 } 1322 1323 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason) 1324 { 1325 struct wmi_vring_ba_dis_cmd cmd = { 1326 .ringid = ringid, 1327 .reason = cpu_to_le16(reason), 1328 }; 1329 1330 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__, 1331 ringid, reason); 1332 1333 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd)); 1334 } 1335 1336 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason) 1337 { 1338 struct wmi_rcp_delba_cmd cmd = { 1339 .cidxtid = cidxtid, 1340 .reason = cpu_to_le16(reason), 1341 }; 1342 1343 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__, 1344 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason); 1345 1346 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd)); 1347 } 1348 1349 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token, 1350 u16 status, bool amsdu, u16 agg_wsize, u16 timeout) 1351 { 1352 int rc; 1353 struct wmi_rcp_addba_resp_cmd cmd = { 1354 .cidxtid = mk_cidxtid(cid, tid), 1355 .dialog_token = token, 1356 .status_code = cpu_to_le16(status), 1357 /* bit 0: A-MSDU supported 1358 * bit 1: policy (should be 0 for us) 1359 * bits 2..5: TID 1360 * bits 6..15: buffer size 1361 */ 1362 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) | 1363 (agg_wsize << 6)), 1364 .ba_timeout = cpu_to_le16(timeout), 1365 }; 1366 struct { 1367 struct wil6210_mbox_hdr_wmi wmi; 1368 struct wmi_rcp_addba_resp_sent_event evt; 1369 } __packed reply; 1370 1371 wil_dbg_wmi(wil, 1372 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n", 1373 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-"); 1374 1375 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd), 1376 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 1377 100); 1378 if (rc) 1379 return rc; 1380 1381 if (reply.evt.status) { 1382 wil_err(wil, "ADDBA response failed with status %d\n", 1383 le16_to_cpu(reply.evt.status)); 1384 rc = -EINVAL; 1385 } 1386 1387 return rc; 1388 } 1389 1390 void wmi_event_flush(struct wil6210_priv *wil) 1391 { 1392 struct pending_wmi_event *evt, *t; 1393 1394 wil_dbg_wmi(wil, "%s()\n", __func__); 1395 1396 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { 1397 list_del(&evt->list); 1398 kfree(evt); 1399 } 1400 } 1401 1402 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, 1403 void *d, int len) 1404 { 1405 uint i; 1406 1407 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { 1408 if (wmi_evt_handlers[i].eventid == id) { 1409 wmi_evt_handlers[i].handler(wil, id, d, len); 1410 return true; 1411 } 1412 } 1413 1414 return false; 1415 } 1416 1417 static void wmi_event_handle(struct wil6210_priv *wil, 1418 struct wil6210_mbox_hdr *hdr) 1419 { 1420 u16 len = le16_to_cpu(hdr->len); 1421 1422 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && 1423 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { 1424 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); 1425 void *evt_data = (void *)(&wmi[1]); 1426 u16 id = le16_to_cpu(wmi->id); 1427 1428 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n", 1429 id, wil->reply_id); 1430 /* check if someone waits for this event */ 1431 if (wil->reply_id && wil->reply_id == id) { 1432 WARN_ON(wil->reply_buf); 1433 wmi_evt_call_handler(wil, id, evt_data, 1434 len - sizeof(*wmi)); 1435 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n", 1436 __func__, id); 1437 complete(&wil->wmi_call); 1438 return; 1439 } 1440 /* unsolicited event */ 1441 /* search for handler */ 1442 if (!wmi_evt_call_handler(wil, id, evt_data, 1443 len - sizeof(*wmi))) { 1444 wil_info(wil, "Unhandled event 0x%04x\n", id); 1445 } 1446 } else { 1447 wil_err(wil, "Unknown event type\n"); 1448 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, 1449 hdr, sizeof(*hdr) + len, true); 1450 } 1451 } 1452 1453 /* 1454 * Retrieve next WMI event from the pending list 1455 */ 1456 static struct list_head *next_wmi_ev(struct wil6210_priv *wil) 1457 { 1458 ulong flags; 1459 struct list_head *ret = NULL; 1460 1461 spin_lock_irqsave(&wil->wmi_ev_lock, flags); 1462 1463 if (!list_empty(&wil->pending_wmi_ev)) { 1464 ret = wil->pending_wmi_ev.next; 1465 list_del(ret); 1466 } 1467 1468 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); 1469 1470 return ret; 1471 } 1472 1473 /* 1474 * Handler for the WMI events 1475 */ 1476 void wmi_event_worker(struct work_struct *work) 1477 { 1478 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 1479 wmi_event_worker); 1480 struct pending_wmi_event *evt; 1481 struct list_head *lh; 1482 1483 wil_dbg_wmi(wil, "Start %s\n", __func__); 1484 while ((lh = next_wmi_ev(wil)) != NULL) { 1485 evt = list_entry(lh, struct pending_wmi_event, list); 1486 wmi_event_handle(wil, &evt->event.hdr); 1487 kfree(evt); 1488 } 1489 wil_dbg_wmi(wil, "Finished %s\n", __func__); 1490 } 1491