drivers/net/wireless/ath/wil6210/wmi.c

   1 /*
   2  * Copyright (c) 2012-2014 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         {0x8c0000, 0x949000, 0x8c0000, "upper"},   /* upper area       548k */
  89         /*
  90          * 920000..930000 ucode code RAM
  91          * 930000..932000 ucode data RAM
  92          * 932000..949000 back-door debug data
  93          */
  94 };
  95
  96 /**
  97  * return AHB address for given firmware/ucode internal (linker) address
  98  * @x - internal address
  99  * If address have no valid AHB mapping, return 0
 100  */
 101 static u32 wmi_addr_remap(u32 x)
 102 {
 103         uint i;
 104
 105         for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
 106                 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
 107                         return x + fw_mapping[i].host - fw_mapping[i].from;
 108         }
 109
 110         return 0;
 111 }
 112
 113 /**
 114  * Check address validity for WMI buffer; remap if needed
 115  * @ptr - internal (linker) fw/ucode address
 116  *
 117  * Valid buffer should be DWORD aligned
 118  *
 119  * return address for accessing buffer from the host;
 120  * if buffer is not valid, return NULL.
 121  */
 122 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
 123 {
 124         u32 off;
 125         u32 ptr = le32_to_cpu(ptr_);
 126
 127         if (ptr % 4)
 128                 return NULL;
 129
 130         ptr = wmi_addr_remap(ptr);
 131         if (ptr < WIL6210_FW_HOST_OFF)
 132                 return NULL;
 133
 134         off = HOSTADDR(ptr);
 135         if (off > WIL6210_MEM_SIZE - 4)
 136                 return NULL;
 137
 138         return wil->csr + off;
 139 }
 140
 141 /**
 142  * Check address validity
 143  */
 144 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
 145 {
 146         u32 off;
 147
 148         if (ptr % 4)
 149                 return NULL;
 150
 151         if (ptr < WIL6210_FW_HOST_OFF)
 152                 return NULL;
 153
 154         off = HOSTADDR(ptr);
 155         if (off > WIL6210_MEM_SIZE - 4)
 156                 return NULL;
 157
 158         return wil->csr + off;
 159 }
 160
 161 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
 162                  struct wil6210_mbox_hdr *hdr)
 163 {
 164         void __iomem *src = wmi_buffer(wil, ptr);
 165
 166         if (!src)
 167                 return -EINVAL;
 168
 169         wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
 170
 171         return 0;
 172 }
 173
 174 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
 175 {
 176         struct {
 177                 struct wil6210_mbox_hdr hdr;
 178                 struct wil6210_mbox_hdr_wmi wmi;
 179         } __packed cmd = {
 180                 .hdr = {
 181                         .type = WIL_MBOX_HDR_TYPE_WMI,
 182                         .flags = 0,
 183                         .len = cpu_to_le16(sizeof(cmd.wmi) + len),
 184                 },
 185                 .wmi = {
 186                         .mid = 0,
 187                         .id = cpu_to_le16(cmdid),
 188                 },
 189         };
 190         struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
 191         struct wil6210_mbox_ring_desc d_head;
 192         u32 next_head;
 193         void __iomem *dst;
 194         void __iomem *head = wmi_addr(wil, r->head);
 195         uint retry;
 196
 197         if (sizeof(cmd) + len > r->entry_size) {
 198                 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
 199                         (int)(sizeof(cmd) + len), r->entry_size);
 200                 return -ERANGE;
 201         }
 202
 203         might_sleep();
 204
 205         if (!test_bit(wil_status_fwready, wil->status)) {
 206                 wil_err(wil, "WMI: cannot send command while FW not ready\n");
 207                 return -EAGAIN;
 208         }
 209
 210         if (!head) {
 211                 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
 212                 return -EINVAL;
 213         }
 214         /* read Tx head till it is not busy */
 215         for (retry = 5; retry > 0; retry--) {
 216                 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
 217                 if (d_head.sync == 0)
 218                         break;
 219                 msleep(20);
 220         }
 221         if (d_head.sync != 0) {
 222                 wil_err(wil, "WMI head busy\n");
 223                 return -EBUSY;
 224         }
 225         /* next head */
 226         next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
 227         wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
 228         /* wait till FW finish with previous command */
 229         for (retry = 5; retry > 0; retry--) {
 230                 r->tail = ioread32(wil->csr + HOST_MBOX +
 231                                    offsetof(struct wil6210_mbox_ctl, tx.tail));
 232                 if (next_head != r->tail)
 233                         break;
 234                 msleep(20);
 235         }
 236         if (next_head == r->tail) {
 237                 wil_err(wil, "WMI ring full\n");
 238                 return -EBUSY;
 239         }
 240         dst = wmi_buffer(wil, d_head.addr);
 241         if (!dst) {
 242                 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
 243                         le32_to_cpu(d_head.addr));
 244                 return -EINVAL;
 245         }
 246         cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
 247         /* set command */
 248         wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
 249         wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
 250                          sizeof(cmd), true);
 251         wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
 252                          len, true);
 253         wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
 254         wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
 255         /* mark entry as full */
 256         iowrite32(1, wil->csr + HOSTADDR(r->head) +
 257                   offsetof(struct wil6210_mbox_ring_desc, sync));
 258         /* advance next ptr */
 259         iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
 260                   offsetof(struct wil6210_mbox_ctl, tx.head));
 261
 262         trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
 263
 264         /* interrupt to FW */
 265         iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
 266
 267         return 0;
 268 }
 269
 270 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
 271 {
 272         int rc;
 273
 274         mutex_lock(&wil->wmi_mutex);
 275         rc = __wmi_send(wil, cmdid, buf, len);
 276         mutex_unlock(&wil->wmi_mutex);
 277
 278         return rc;
 279 }
 280
 281 /*=== Event handlers ===*/
 282 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
 283 {
 284         struct net_device *ndev = wil_to_ndev(wil);
 285         struct wireless_dev *wdev = wil->wdev;
 286         struct wmi_ready_event *evt = d;
 287
 288         wil->fw_version = le32_to_cpu(evt->sw_version);
 289         wil->n_mids = evt->numof_additional_mids;
 290
 291         wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
 292                  evt->mac, wil->n_mids);
 293
 294         if (!is_valid_ether_addr(ndev->dev_addr)) {
 295                 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
 296                 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
 297         }
 298         snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
 299                  "%d", wil->fw_version);
 300 }
 301
 302 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
 303                              int len)
 304 {
 305         wil_dbg_wmi(wil, "WMI: got FW ready event\n");
 306
 307         wil_set_recovery_state(wil, fw_recovery_idle);
 308         set_bit(wil_status_fwready, wil->status);
 309         /* let the reset sequence continue */
 310         complete(&wil->wmi_ready);
 311 }
 312
 313 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
 314 {
 315         struct wmi_rx_mgmt_packet_event *data = d;
 316         struct wiphy *wiphy = wil_to_wiphy(wil);
 317         struct ieee80211_mgmt *rx_mgmt_frame =
 318                         (struct ieee80211_mgmt *)data->payload;
 319         int ch_no = data->info.channel+1;
 320         u32 freq = ieee80211_channel_to_frequency(ch_no,
 321                         IEEE80211_BAND_60GHZ);
 322         struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
 323         s32 signal = data->info.sqi;
 324         __le16 fc = rx_mgmt_frame->frame_control;
 325         u32 d_len = le32_to_cpu(data->info.len);
 326         u16 d_status = le16_to_cpu(data->info.status);
 327
 328         wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
 329                     data->info.channel, data->info.mcs, data->info.snr,
 330                     data->info.sqi);
 331         wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
 332                     le16_to_cpu(fc));
 333         wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
 334                     data->info.qid, data->info.mid, data->info.cid);
 335
 336         if (!channel) {
 337                 wil_err(wil, "Frame on unsupported channel\n");
 338                 return;
 339         }
 340
 341         if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
 342                 struct cfg80211_bss *bss;
 343                 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
 344                 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
 345                 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
 346                 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
 347                 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
 348                                                  u.beacon.variable);
 349                 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
 350                 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
 351                 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
 352                 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
 353                                  ie_len, true);
 354
 355                 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
 356                                                 d_len, signal, GFP_KERNEL);
 357                 if (bss) {
 358                         wil_dbg_wmi(wil, "Added BSS %pM\n",
 359                                     rx_mgmt_frame->bssid);
 360                         cfg80211_put_bss(wiphy, bss);
 361                 } else {
 362                         wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
 363                 }
 364         } else {
 365                 cfg80211_rx_mgmt(wil->wdev, freq, signal,
 366                                  (void *)rx_mgmt_frame, d_len, 0);
 367         }
 368 }
 369
 370 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
 371                                   void *d, int len)
 372 {
 373         if (wil->scan_request) {
 374                 struct wmi_scan_complete_event *data = d;
 375                 bool aborted = (data->status != WMI_SCAN_SUCCESS);
 376
 377                 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
 378                 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
 379                              wil->scan_request, aborted);
 380
 381                 del_timer_sync(&wil->scan_timer);
 382                 cfg80211_scan_done(wil->scan_request, aborted);
 383                 wil->scan_request = NULL;
 384         } else {
 385                 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
 386         }
 387 }
 388
 389 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
 390 {
 391         struct net_device *ndev = wil_to_ndev(wil);
 392         struct wireless_dev *wdev = wil->wdev;
 393         struct wmi_connect_event *evt = d;
 394         int ch; /* channel number */
 395         struct station_info sinfo;
 396         u8 *assoc_req_ie, *assoc_resp_ie;
 397         size_t assoc_req_ielen, assoc_resp_ielen;
 398         /* capinfo(u16) + listen_interval(u16) + IEs */
 399         const size_t assoc_req_ie_offset = sizeof(u16) * 2;
 400         /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
 401         const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
 402
 403         if (len < sizeof(*evt)) {
 404                 wil_err(wil, "Connect event too short : %d bytes\n", len);
 405                 return;
 406         }
 407         if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
 408                    evt->assoc_resp_len) {
 409                 wil_err(wil,
 410                         "Connect event corrupted : %d != %d + %d + %d + %d\n",
 411                         len, (int)sizeof(*evt), evt->beacon_ie_len,
 412                         evt->assoc_req_len, evt->assoc_resp_len);
 413                 return;
 414         }
 415         if (evt->cid >= WIL6210_MAX_CID) {
 416                 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
 417                 return;
 418         }
 419
 420         ch = evt->channel + 1;
 421         wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
 422                     evt->bssid, ch, evt->cid);
 423         wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
 424                          evt->assoc_info, len - sizeof(*evt), true);
 425
 426         /* figure out IE's */
 427         assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
 428                                         assoc_req_ie_offset];
 429         assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
 430         if (evt->assoc_req_len <= assoc_req_ie_offset) {
 431                 assoc_req_ie = NULL;
 432                 assoc_req_ielen = 0;
 433         }
 434
 435         assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
 436                                          evt->assoc_req_len +
 437                                          assoc_resp_ie_offset];
 438         assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
 439         if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
 440                 assoc_resp_ie = NULL;
 441                 assoc_resp_ielen = 0;
 442         }
 443
 444         if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
 445             (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
 446                 if (!test_bit(wil_status_fwconnecting, wil->status)) {
 447                         wil_err(wil, "Not in connecting state\n");
 448                         return;
 449                 }
 450                 del_timer_sync(&wil->connect_timer);
 451                 cfg80211_connect_result(ndev, evt->bssid,
 452                                         assoc_req_ie, assoc_req_ielen,
 453                                         assoc_resp_ie, assoc_resp_ielen,
 454                                         WLAN_STATUS_SUCCESS, GFP_KERNEL);
 455
 456         } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
 457                    (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
 458                 memset(&sinfo, 0, sizeof(sinfo));
 459
 460                 sinfo.generation = wil->sinfo_gen++;
 461
 462                 if (assoc_req_ie) {
 463                         sinfo.assoc_req_ies = assoc_req_ie;
 464                         sinfo.assoc_req_ies_len = assoc_req_ielen;
 465                 }
 466
 467                 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
 468         }
 469         clear_bit(wil_status_fwconnecting, wil->status);
 470         set_bit(wil_status_fwconnected, wil->status);
 471
 472         /* FIXME FW can transmit only ucast frames to peer */
 473         /* FIXME real ring_id instead of hard coded 0 */
 474         memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
 475         wil->sta[evt->cid].status = wil_sta_conn_pending;
 476
 477         wil->pending_connect_cid = evt->cid;
 478         queue_work(wil->wq_service, &wil->connect_worker);
 479 }
 480
 481 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
 482                                void *d, int len)
 483 {
 484         struct wmi_disconnect_event *evt = d;
 485         u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
 486
 487         wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
 488                     evt->bssid, reason_code, evt->disconnect_reason);
 489
 490         wil->sinfo_gen++;
 491
 492         mutex_lock(&wil->mutex);
 493         wil6210_disconnect(wil, evt->bssid, reason_code, true);
 494         mutex_unlock(&wil->mutex);
 495 }
 496
 497 /*
 498  * Firmware reports EAPOL frame using WME event.
 499  * Reconstruct Ethernet frame and deliver it via normal Rx
 500  */
 501 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
 502                              void *d, int len)
 503 {
 504         struct net_device *ndev = wil_to_ndev(wil);
 505         struct wmi_eapol_rx_event *evt = d;
 506         u16 eapol_len = le16_to_cpu(evt->eapol_len);
 507         int sz = eapol_len + ETH_HLEN;
 508         struct sk_buff *skb;
 509         struct ethhdr *eth;
 510         int cid;
 511         struct wil_net_stats *stats = NULL;
 512
 513         wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
 514                     evt->src_mac);
 515
 516         cid = wil_find_cid(wil, evt->src_mac);
 517         if (cid >= 0)
 518                 stats = &wil->sta[cid].stats;
 519
 520         if (eapol_len > 196) { /* TODO: revisit size limit */
 521                 wil_err(wil, "EAPOL too large\n");
 522                 return;
 523         }
 524
 525         skb = alloc_skb(sz, GFP_KERNEL);
 526         if (!skb) {
 527                 wil_err(wil, "Failed to allocate skb\n");
 528                 return;
 529         }
 530
 531         eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
 532         memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
 533         memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
 534         eth->h_proto = cpu_to_be16(ETH_P_PAE);
 535         memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
 536         skb->protocol = eth_type_trans(skb, ndev);
 537         if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
 538                 ndev->stats.rx_packets++;
 539                 ndev->stats.rx_bytes += sz;
 540                 if (stats) {
 541                         stats->rx_packets++;
 542                         stats->rx_bytes += sz;
 543                 }
 544         } else {
 545                 ndev->stats.rx_dropped++;
 546                 if (stats)
 547                         stats->rx_dropped++;
 548         }
 549 }
 550
 551 static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize)
 552 {
 553         struct vring_tx_data *t;
 554         int i;
 555
 556         for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
 557                 if (cid != wil->vring2cid_tid[i][0])
 558                         continue;
 559                 t = &wil->vring_tx_data[i];
 560                 if (!t->enabled)
 561                         continue;
 562
 563                 wil_addba_tx_request(wil, i, wsize);
 564         }
 565 }
 566
 567 static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
 568 {
 569         struct wmi_data_port_open_event *evt = d;
 570         u8 cid = evt->cid;
 571
 572         wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
 573
 574         if (cid >= ARRAY_SIZE(wil->sta)) {
 575                 wil_err(wil, "Link UP for invalid CID %d\n", cid);
 576                 return;
 577         }
 578
 579         wil->sta[cid].data_port_open = true;
 580         if (agg_wsize >= 0)
 581                 wil_addba_tx_cid(wil, cid, agg_wsize);
 582 }
 583
 584 static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
 585 {
 586         struct net_device *ndev = wil_to_ndev(wil);
 587         struct wmi_wbe_link_down_event *evt = d;
 588         u8 cid = evt->cid;
 589
 590         wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
 591                     cid, le32_to_cpu(evt->reason));
 592
 593         if (cid >= ARRAY_SIZE(wil->sta)) {
 594                 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
 595                 return;
 596         }
 597
 598         wil->sta[cid].data_port_open = false;
 599         netif_carrier_off(ndev);
 600 }
 601
 602 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
 603                               int len)
 604 {
 605         struct wmi_vring_ba_status_event *evt = d;
 606         struct vring_tx_data *txdata;
 607
 608         wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
 609                     evt->ringid,
 610                     evt->status == WMI_BA_AGREED ? "OK" : "N/A",
 611                     evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
 612                     evt->amsdu ? "+" : "-");
 613
 614         if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
 615                 wil_err(wil, "invalid ring id %d\n", evt->ringid);
 616                 return;
 617         }
 618
 619         if (evt->status != WMI_BA_AGREED) {
 620                 evt->ba_timeout = 0;
 621                 evt->agg_wsize = 0;
 622                 evt->amsdu = 0;
 623         }
 624
 625         txdata = &wil->vring_tx_data[evt->ringid];
 626
 627         txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
 628         txdata->agg_wsize = evt->agg_wsize;
 629         txdata->agg_amsdu = evt->amsdu;
 630         txdata->addba_in_progress = false;
 631 }
 632
 633 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
 634                                  int len)
 635 {
 636         struct wmi_rcp_addba_req_event *evt = d;
 637
 638         wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
 639                              evt->ba_param_set, evt->ba_timeout,
 640                              evt->ba_seq_ctrl);
 641 }
 642
 643 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
 644 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 645 {
 646         struct wmi_delba_event *evt = d;
 647         u8 cid, tid;
 648         u16 reason = __le16_to_cpu(evt->reason);
 649         struct wil_sta_info *sta;
 650         struct wil_tid_ampdu_rx *r;
 651
 652         might_sleep();
 653         parse_cidxtid(evt->cidxtid, &cid, &tid);
 654         wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
 655                     cid, tid,
 656                     evt->from_initiator ? "originator" : "recipient",
 657                     reason);
 658         if (!evt->from_initiator) {
 659                 int i;
 660                 /* find Tx vring it belongs to */
 661                 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
 662                         if ((wil->vring2cid_tid[i][0] == cid) &&
 663                             (wil->vring2cid_tid[i][1] == tid)) {
 664                                 struct vring_tx_data *txdata =
 665                                         &wil->vring_tx_data[i];
 666
 667                                 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
 668                                 txdata->agg_timeout = 0;
 669                                 txdata->agg_wsize = 0;
 670                                 txdata->addba_in_progress = false;
 671
 672                                 break; /* max. 1 matching ring */
 673                         }
 674                 }
 675                 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
 676                         wil_err(wil, "DELBA: unable to find Tx vring\n");
 677                 return;
 678         }
 679
 680         sta = &wil->sta[cid];
 681
 682         spin_lock_bh(&sta->tid_rx_lock);
 683
 684         r = sta->tid_rx[tid];
 685         sta->tid_rx[tid] = NULL;
 686         wil_tid_ampdu_rx_free(wil, r);
 687
 688         spin_unlock_bh(&sta->tid_rx_lock);
 689 }
 690
 691 static const struct {
 692         int eventid;
 693         void (*handler)(struct wil6210_priv *wil, int eventid,
 694                         void *data, int data_len);
 695 } wmi_evt_handlers[] = {
 696         {WMI_READY_EVENTID,             wmi_evt_ready},
 697         {WMI_FW_READY_EVENTID,          wmi_evt_fw_ready},
 698         {WMI_RX_MGMT_PACKET_EVENTID,    wmi_evt_rx_mgmt},
 699         {WMI_SCAN_COMPLETE_EVENTID,     wmi_evt_scan_complete},
 700         {WMI_CONNECT_EVENTID,           wmi_evt_connect},
 701         {WMI_DISCONNECT_EVENTID,        wmi_evt_disconnect},
 702         {WMI_EAPOL_RX_EVENTID,          wmi_evt_eapol_rx},
 703         {WMI_DATA_PORT_OPEN_EVENTID,    wmi_evt_linkup},
 704         {WMI_WBE_LINKDOWN_EVENTID,      wmi_evt_linkdown},
 705         {WMI_BA_STATUS_EVENTID,         wmi_evt_ba_status},
 706         {WMI_RCP_ADDBA_REQ_EVENTID,     wmi_evt_addba_rx_req},
 707         {WMI_DELBA_EVENTID,             wmi_evt_delba},
 708 };
 709
 710 /*
 711  * Run in IRQ context
 712  * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
 713  * that will be eventually handled by the @wmi_event_worker in the thread
 714  * context of thread "wil6210_wmi"
 715  */
 716 void wmi_recv_cmd(struct wil6210_priv *wil)
 717 {
 718         struct wil6210_mbox_ring_desc d_tail;
 719         struct wil6210_mbox_hdr hdr;
 720         struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
 721         struct pending_wmi_event *evt;
 722         u8 *cmd;
 723         void __iomem *src;
 724         ulong flags;
 725         unsigned n;
 726
 727         if (!test_bit(wil_status_reset_done, wil->status)) {
 728                 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
 729                 return;
 730         }
 731
 732         for (n = 0;; n++) {
 733                 u16 len;
 734                 bool q;
 735
 736                 r->head = ioread32(wil->csr + HOST_MBOX +
 737                                    offsetof(struct wil6210_mbox_ctl, rx.head));
 738                 if (r->tail == r->head)
 739                         break;
 740
 741                 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
 742                             r->head, r->tail);
 743                 /* read cmd descriptor from tail */
 744                 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
 745                                      sizeof(struct wil6210_mbox_ring_desc));
 746                 if (d_tail.sync == 0) {
 747                         wil_err(wil, "Mbox evt not owned by FW?\n");
 748                         break;
 749                 }
 750
 751                 /* read cmd header from descriptor */
 752                 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
 753                         wil_err(wil, "Mbox evt at 0x%08x?\n",
 754                                 le32_to_cpu(d_tail.addr));
 755                         break;
 756                 }
 757                 len = le16_to_cpu(hdr.len);
 758                 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
 759                             le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
 760                             hdr.flags);
 761
 762                 /* read cmd buffer from descriptor */
 763                 src = wmi_buffer(wil, d_tail.addr) +
 764                       sizeof(struct wil6210_mbox_hdr);
 765                 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
 766                                              event.wmi) + len, 4),
 767                               GFP_KERNEL);
 768                 if (!evt)
 769                         break;
 770
 771                 evt->event.hdr = hdr;
 772                 cmd = (void *)&evt->event.wmi;
 773                 wil_memcpy_fromio_32(cmd, src, len);
 774                 /* mark entry as empty */
 775                 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
 776                           offsetof(struct wil6210_mbox_ring_desc, sync));
 777                 /* indicate */
 778                 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
 779                     (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
 780                         struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
 781                         u16 id = le16_to_cpu(wmi->id);
 782                         u32 tstamp = le32_to_cpu(wmi->timestamp);
 783
 784                         wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
 785                                     id, wmi->mid, tstamp);
 786                         trace_wil6210_wmi_event(wmi, &wmi[1],
 787                                                 len - sizeof(*wmi));
 788                 }
 789                 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
 790                                  &evt->event.hdr, sizeof(hdr) + len, true);
 791
 792                 /* advance tail */
 793                 r->tail = r->base + ((r->tail - r->base +
 794                           sizeof(struct wil6210_mbox_ring_desc)) % r->size);
 795                 iowrite32(r->tail, wil->csr + HOST_MBOX +
 796                           offsetof(struct wil6210_mbox_ctl, rx.tail));
 797
 798                 /* add to the pending list */
 799                 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
 800                 list_add_tail(&evt->list, &wil->pending_wmi_ev);
 801                 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
 802                 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
 803                 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
 804         }
 805         /* normally, 1 event per IRQ should be processed */
 806         wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
 807 }
 808
 809 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
 810              u16 reply_id, void *reply, u8 reply_size, int to_msec)
 811 {
 812         int rc;
 813         int remain;
 814
 815         mutex_lock(&wil->wmi_mutex);
 816
 817         rc = __wmi_send(wil, cmdid, buf, len);
 818         if (rc)
 819                 goto out;
 820
 821         wil->reply_id = reply_id;
 822         wil->reply_buf = reply;
 823         wil->reply_size = reply_size;
 824         remain = wait_for_completion_timeout(&wil->wmi_call,
 825                                              msecs_to_jiffies(to_msec));
 826         if (0 == remain) {
 827                 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
 828                         cmdid, reply_id, to_msec);
 829                 rc = -ETIME;
 830         } else {
 831                 wil_dbg_wmi(wil,
 832                             "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
 833                             cmdid, reply_id,
 834                             to_msec - jiffies_to_msecs(remain));
 835         }
 836         wil->reply_id = 0;
 837         wil->reply_buf = NULL;
 838         wil->reply_size = 0;
 839  out:
 840         mutex_unlock(&wil->wmi_mutex);
 841
 842         return rc;
 843 }
 844
 845 int wmi_echo(struct wil6210_priv *wil)
 846 {
 847         struct wmi_echo_cmd cmd = {
 848                 .value = cpu_to_le32(0x12345678),
 849         };
 850
 851         return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
 852                          WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
 853 }
 854
 855 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
 856 {
 857         struct wmi_set_mac_address_cmd cmd;
 858
 859         memcpy(cmd.mac, addr, ETH_ALEN);
 860
 861         wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
 862
 863         return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
 864 }
 865
 866 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
 867 {
 868         int rc;
 869
 870         struct wmi_pcp_start_cmd cmd = {
 871                 .bcon_interval = cpu_to_le16(bi),
 872                 .network_type = wmi_nettype,
 873                 .disable_sec_offload = 1,
 874                 .channel = chan - 1,
 875                 .pcp_max_assoc_sta = max_assoc_sta,
 876         };
 877         struct {
 878                 struct wil6210_mbox_hdr_wmi wmi;
 879                 struct wmi_pcp_started_event evt;
 880         } __packed reply;
 881
 882         if (!wil->secure_pcp)
 883                 cmd.disable_sec = 1;
 884
 885         if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
 886             (cmd.pcp_max_assoc_sta <= 0)) {
 887                 wil_info(wil,
 888                          "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
 889                          max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
 890                 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
 891         }
 892
 893         /*
 894          * Processing time may be huge, in case of secure AP it takes about
 895          * 3500ms for FW to start AP
 896          */
 897         rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
 898                       WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
 899         if (rc)
 900                 return rc;
 901
 902         if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
 903                 rc = -EINVAL;
 904
 905         return rc;
 906 }
 907
 908 int wmi_pcp_stop(struct wil6210_priv *wil)
 909 {
 910         return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
 911                         WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
 912 }
 913
 914 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
 915 {
 916         struct wmi_set_ssid_cmd cmd = {
 917                 .ssid_len = cpu_to_le32(ssid_len),
 918         };
 919
 920         if (ssid_len > sizeof(cmd.ssid))
 921                 return -EINVAL;
 922
 923         memcpy(cmd.ssid, ssid, ssid_len);
 924
 925         return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
 926 }
 927
 928 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
 929 {
 930         int rc;
 931         struct {
 932                 struct wil6210_mbox_hdr_wmi wmi;
 933                 struct wmi_set_ssid_cmd cmd;
 934         } __packed reply;
 935         int len; /* reply.cmd.ssid_len in CPU order */
 936
 937         rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
 938                       &reply, sizeof(reply), 20);
 939         if (rc)
 940                 return rc;
 941
 942         len = le32_to_cpu(reply.cmd.ssid_len);
 943         if (len > sizeof(reply.cmd.ssid))
 944                 return -EINVAL;
 945
 946         *ssid_len = len;
 947         memcpy(ssid, reply.cmd.ssid, len);
 948
 949         return 0;
 950 }
 951
 952 int wmi_set_channel(struct wil6210_priv *wil, int channel)
 953 {
 954         struct wmi_set_pcp_channel_cmd cmd = {
 955                 .channel = channel - 1,
 956         };
 957
 958         return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
 959 }
 960
 961 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
 962 {
 963         int rc;
 964         struct {
 965                 struct wil6210_mbox_hdr_wmi wmi;
 966                 struct wmi_set_pcp_channel_cmd cmd;
 967         } __packed reply;
 968
 969         rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
 970                       WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
 971         if (rc)
 972                 return rc;
 973
 974         if (reply.cmd.channel > 3)
 975                 return -EINVAL;
 976
 977         *channel = reply.cmd.channel + 1;
 978
 979         return 0;
 980 }
 981
 982 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
 983 {
 984         struct wmi_p2p_cfg_cmd cmd = {
 985                 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
 986                 .channel = channel - 1,
 987         };
 988
 989         return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
 990 }
 991
 992 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
 993                        const void *mac_addr)
 994 {
 995         struct wmi_delete_cipher_key_cmd cmd = {
 996                 .key_index = key_index,
 997         };
 998
 999         if (mac_addr)
1000                 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1001
1002         return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1003 }
1004
1005 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1006                        const void *mac_addr, int key_len, const void *key)
1007 {
1008         struct wmi_add_cipher_key_cmd cmd = {
1009                 .key_index = key_index,
1010                 .key_usage = WMI_KEY_USE_PAIRWISE,
1011                 .key_len = key_len,
1012         };
1013
1014         if (!key || (key_len > sizeof(cmd.key)))
1015                 return -EINVAL;
1016
1017         memcpy(cmd.key, key, key_len);
1018         if (mac_addr)
1019                 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1020
1021         return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1022 }
1023
1024 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1025 {
1026         int rc;
1027         u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1028         struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1029
1030         if (!cmd)
1031                 return -ENOMEM;
1032         if (!ie)
1033                 ie_len = 0;
1034
1035         cmd->mgmt_frm_type = type;
1036         /* BUG: FW API define ieLen as u8. Will fix FW */
1037         cmd->ie_len = cpu_to_le16(ie_len);
1038         memcpy(cmd->ie_info, ie, ie_len);
1039         rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1040         kfree(cmd);
1041
1042         return rc;
1043 }
1044
1045 /**
1046  * wmi_rxon - turn radio on/off
1047  * @on:         turn on if true, off otherwise
1048  *
1049  * Only switch radio. Channel should be set separately.
1050  * No timeout for rxon - radio turned on forever unless some other call
1051  * turns it off
1052  */
1053 int wmi_rxon(struct wil6210_priv *wil, bool on)
1054 {
1055         int rc;
1056         struct {
1057                 struct wil6210_mbox_hdr_wmi wmi;
1058                 struct wmi_listen_started_event evt;
1059         } __packed reply;
1060
1061         wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1062
1063         if (on) {
1064                 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1065                               WMI_LISTEN_STARTED_EVENTID,
1066                               &reply, sizeof(reply), 100);
1067                 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1068                         rc = -EINVAL;
1069         } else {
1070                 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1071                               WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1072         }
1073
1074         return rc;
1075 }
1076
1077 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1078 {
1079         struct wireless_dev *wdev = wil->wdev;
1080         struct net_device *ndev = wil_to_ndev(wil);
1081         struct wmi_cfg_rx_chain_cmd cmd = {
1082                 .action = WMI_RX_CHAIN_ADD,
1083                 .rx_sw_ring = {
1084                         .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
1085                         .ring_mem_base = cpu_to_le64(vring->pa),
1086                         .ring_size = cpu_to_le16(vring->size),
1087                 },
1088                 .mid = 0, /* TODO - what is it? */
1089                 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1090                 .reorder_type = WMI_RX_SW_REORDER,
1091                 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1092         };
1093         struct {
1094                 struct wil6210_mbox_hdr_wmi wmi;
1095                 struct wmi_cfg_rx_chain_done_event evt;
1096         } __packed evt;
1097         int rc;
1098
1099         if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1100                 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1101
1102                 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1103                 if (ch)
1104                         cmd.sniffer_cfg.channel = ch->hw_value - 1;
1105                 cmd.sniffer_cfg.phy_info_mode =
1106                         cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1107                 cmd.sniffer_cfg.phy_support =
1108                         cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1109                                     ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
1110         } else {
1111                 /* Initialize offload (in non-sniffer mode).
1112                  * Linux IP stack always calculates IP checksum
1113                  * HW always calculate TCP/UDP checksum
1114                  */
1115                 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1116         }
1117         /* typical time for secure PCP is 840ms */
1118         rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1119                       WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1120         if (rc)
1121                 return rc;
1122
1123         vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1124
1125         wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1126                      le32_to_cpu(evt.evt.status), vring->hwtail);
1127
1128         if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1129                 rc = -EINVAL;
1130
1131         return rc;
1132 }
1133
1134 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1135 {
1136         int rc;
1137         struct wmi_temp_sense_cmd cmd = {
1138                 .measure_baseband_en = cpu_to_le32(!!t_bb),
1139                 .measure_rf_en = cpu_to_le32(!!t_rf),
1140                 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1141         };
1142         struct {
1143                 struct wil6210_mbox_hdr_wmi wmi;
1144                 struct wmi_temp_sense_done_event evt;
1145         } __packed reply;
1146
1147         rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1148                       WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1149         if (rc)
1150                 return rc;
1151
1152         if (t_bb)
1153                 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1154         if (t_rf)
1155                 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1156
1157         return 0;
1158 }
1159
1160 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1161 {
1162         struct wmi_disconnect_sta_cmd cmd = {
1163                 .disconnect_reason = cpu_to_le16(reason),
1164         };
1165         memcpy(cmd.dst_mac, mac, ETH_ALEN);
1166
1167         wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1168
1169         return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
1170 }
1171
1172 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1173 {
1174         struct wmi_vring_ba_en_cmd cmd = {
1175                 .ringid = ringid,
1176                 .agg_max_wsize = size,
1177                 .ba_timeout = cpu_to_le16(timeout),
1178                 .amsdu = 0,
1179         };
1180
1181         wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1182                     ringid, size, timeout);
1183
1184         return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1185 }
1186
1187 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1188 {
1189         struct wmi_vring_ba_dis_cmd cmd = {
1190                 .ringid = ringid,
1191                 .reason = cpu_to_le16(reason),
1192         };
1193
1194         wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1195                     ringid, reason);
1196
1197         return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1198 }
1199
1200 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1201 {
1202         struct wmi_rcp_delba_cmd cmd = {
1203                 .cidxtid = cidxtid,
1204                 .reason = cpu_to_le16(reason),
1205         };
1206
1207         wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1208                     cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1209
1210         return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1211 }
1212
1213 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1214                       u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1215 {
1216         int rc;
1217         struct wmi_rcp_addba_resp_cmd cmd = {
1218                 .cidxtid = mk_cidxtid(cid, tid),
1219                 .dialog_token = token,
1220                 .status_code = cpu_to_le16(status),
1221                 /* bit 0: A-MSDU supported
1222                  * bit 1: policy (should be 0 for us)
1223                  * bits 2..5: TID
1224                  * bits 6..15: buffer size
1225                  */
1226                 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1227                                             (agg_wsize << 6)),
1228                 .ba_timeout = cpu_to_le16(timeout),
1229         };
1230         struct {
1231                 struct wil6210_mbox_hdr_wmi wmi;
1232                 struct wmi_rcp_addba_resp_sent_event evt;
1233         } __packed reply;
1234
1235         wil_dbg_wmi(wil,
1236                     "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1237                     cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1238
1239         rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1240                       WMI_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 100);
1241         if (rc)
1242                 return rc;
1243
1244         if (reply.evt.status) {
1245                 wil_err(wil, "ADDBA response failed with status %d\n",
1246                         le16_to_cpu(reply.evt.status));
1247                 rc = -EINVAL;
1248         }
1249
1250         return rc;
1251 }
1252
1253 void wmi_event_flush(struct wil6210_priv *wil)
1254 {
1255         struct pending_wmi_event *evt, *t;
1256
1257         wil_dbg_wmi(wil, "%s()\n", __func__);
1258
1259         list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1260                 list_del(&evt->list);
1261                 kfree(evt);
1262         }
1263 }
1264
1265 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1266                                  void *d, int len)
1267 {
1268         uint i;
1269
1270         for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1271                 if (wmi_evt_handlers[i].eventid == id) {
1272                         wmi_evt_handlers[i].handler(wil, id, d, len);
1273                         return true;
1274                 }
1275         }
1276
1277         return false;
1278 }
1279
1280 static void wmi_event_handle(struct wil6210_priv *wil,
1281                              struct wil6210_mbox_hdr *hdr)
1282 {
1283         u16 len = le16_to_cpu(hdr->len);
1284
1285         if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1286             (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1287                 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1288                 void *evt_data = (void *)(&wmi[1]);
1289                 u16 id = le16_to_cpu(wmi->id);
1290
1291                 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1292                             id, wil->reply_id);
1293                 /* check if someone waits for this event */
1294                 if (wil->reply_id && wil->reply_id == id) {
1295                         if (wil->reply_buf) {
1296                                 memcpy(wil->reply_buf, wmi,
1297                                        min(len, wil->reply_size));
1298                         } else {
1299                                 wmi_evt_call_handler(wil, id, evt_data,
1300                                                      len - sizeof(*wmi));
1301                         }
1302                         wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
1303                         complete(&wil->wmi_call);
1304                         return;
1305                 }
1306                 /* unsolicited event */
1307                 /* search for handler */
1308                 if (!wmi_evt_call_handler(wil, id, evt_data,
1309                                           len - sizeof(*wmi))) {
1310                         wil_err(wil, "Unhandled event 0x%04x\n", id);
1311                 }
1312         } else {
1313                 wil_err(wil, "Unknown event type\n");
1314                 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1315                                hdr, sizeof(*hdr) + len, true);
1316         }
1317 }
1318
1319 /*
1320  * Retrieve next WMI event from the pending list
1321  */
1322 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1323 {
1324         ulong flags;
1325         struct list_head *ret = NULL;
1326
1327         spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1328
1329         if (!list_empty(&wil->pending_wmi_ev)) {
1330                 ret = wil->pending_wmi_ev.next;
1331                 list_del(ret);
1332         }
1333
1334         spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1335
1336         return ret;
1337 }
1338
1339 /*
1340  * Handler for the WMI events
1341  */
1342 void wmi_event_worker(struct work_struct *work)
1343 {
1344         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1345                                                  wmi_event_worker);
1346         struct pending_wmi_event *evt;
1347         struct list_head *lh;
1348
1349         wil_dbg_wmi(wil, "Start %s\n", __func__);
1350         while ((lh = next_wmi_ev(wil)) != NULL) {
1351                 evt = list_entry(lh, struct pending_wmi_event, list);
1352                 wmi_event_handle(wil, &evt->event.hdr);
1353                 kfree(evt);
1354         }
1355         wil_dbg_wmi(wil, "Finished %s\n", __func__);
1356 }