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ath9k: Fix symbol overlap window for half/quarter channels
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f 1/*
0916d9f2 2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
2be7d22f
VK		 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
1eb9d1e5 17#include <linux/moduleparam.h>
2be7d22f 18#include <linux/etherdevice.h>
47e19af9 19#include <linux/if_arp.h>
2be7d22f
VK		 20
21#include "wil6210.h"
47e19af9 22#include "txrx.h"
2be7d22f 23#include "wmi.h"
98658095 24#include "trace.h"
2be7d22f 25
327755fb 26static uint max_assoc_sta = WIL6210_MAX_CID;
1eb9d1e5
DL		 27module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR);
28MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
29
3a3def8d
VK		 30int agg_wsize; /* = 0; */
31module_param(agg_wsize, int, S_IRUGO | S_IWUSR);
32MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
33 " 0 - use default; < 0 - don't auto-establish");
34
2be7d22f
VK		 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
b541d0a0
VK		 78 *
79 * array size should be in sync with the declaration in the wil6210.h
2be7d22f 80 */
b541d0a0
VK		 81const 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 */
72269146 86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
b541d0a0 87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
0fd37ff8 88 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */
b541d0a0 89 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
2be7d22f
VK		 90 /*
91 * 920000..930000 ucode code RAM
92 * 930000..932000 ucode data RAM
af6b48db 93 * 932000..949000 back-door debug data
2be7d22f
VK		 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 */
102static 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 */
123void __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 */
145void __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
162int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
163 struct wil6210_mbox_hdr *hdr)
164{
165 void __iomem *src = wmi_buffer(wil, ptr);
8fe59627 166
2be7d22f
VK		 167 if (!src)
168 return -EINVAL;
169
170 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
171
172 return 0;
173}
174
175static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
176{
177 struct {
178 struct wil6210_mbox_hdr hdr;
b874ddec 179 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 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 = {
f988b23f 187 .mid = 0,
b874ddec 188 .command_id = cpu_to_le16(cmdid),
2be7d22f
VK		 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;
349214c1 197 int rc = 0;
2be7d22f
VK		 198
199 if (sizeof(cmd) + len > r->entry_size) {
200 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
201 (int)(sizeof(cmd) + len), r->entry_size);
202 return -ERANGE;
2be7d22f
VK		 203 }
204
205 might_sleep();
206
9419b6a2 207 if (!test_bit(wil_status_fwready, wil->status)) {
15e23124 208 wil_err(wil, "WMI: cannot send command while FW not ready\n");
2be7d22f
VK		 209 return -EAGAIN;
210 }
211
212 if (!head) {
213 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
214 return -EINVAL;
215 }
349214c1
ME		 216
217 wil_halp_vote(wil);
218
2be7d22f
VK		 219 /* read Tx head till it is not busy */
220 for (retry = 5; retry > 0; retry--) {
221 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
222 if (d_head.sync == 0)
223 break;
224 msleep(20);
225 }
226 if (d_head.sync != 0) {
227 wil_err(wil, "WMI head busy\n");
349214c1
ME		 228 rc = -EBUSY;
229 goto out;
2be7d22f
VK		 230 }
231 /* next head */
232 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
7743882d 233 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
2be7d22f
VK		 234 /* wait till FW finish with previous command */
235 for (retry = 5; retry > 0; retry--) {
452133a7
ME		 236 if (!test_bit(wil_status_fwready, wil->status)) {
237 wil_err(wil, "WMI: cannot send command while FW not ready\n");
349214c1
ME		 238 rc = -EAGAIN;
239 goto out;
452133a7 240 }
b9eeb512
VK		 241 r->tail = wil_r(wil, RGF_MBOX +
242 offsetof(struct wil6210_mbox_ctl, tx.tail));
2be7d22f
VK		 243 if (next_head != r->tail)
244 break;
245 msleep(20);
246 }
247 if (next_head == r->tail) {
248 wil_err(wil, "WMI ring full\n");
349214c1
ME		 249 rc = -EBUSY;
250 goto out;
2be7d22f
VK		 251 }
252 dst = wmi_buffer(wil, d_head.addr);
253 if (!dst) {
254 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
255 le32_to_cpu(d_head.addr));
349214c1
ME		 256 rc = -EAGAIN;
257 goto out;
2be7d22f
VK		 258 }
259 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
260 /* set command */
7743882d
VK		 261 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
262 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
2be7d22f 263 sizeof(cmd), true);
7743882d 264 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 265 len, true);
266 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
267 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
268 /* mark entry as full */
b9eeb512 269 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
2be7d22f 270 /* advance next ptr */
b9eeb512
VK		 271 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
272 r->head = next_head);
2be7d22f 273
f988b23f 274 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 275
2be7d22f 276 /* interrupt to FW */
b9eeb512
VK		 277 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
278 SW_INT_MBOX);
2be7d22f 279
349214c1
ME		 280out:
281 wil_halp_unvote(wil);
282 return rc;
2be7d22f
VK		 283}
284
285int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
286{
287 int rc;
288
289 mutex_lock(&wil->wmi_mutex);
290 rc = __wmi_send(wil, cmdid, buf, len);
291 mutex_unlock(&wil->wmi_mutex);
292
293 return rc;
294}
295
296/*=== Event handlers ===*/
297static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
298{
2be7d22f
VK		 299 struct wireless_dev *wdev = wil->wdev;
300 struct wmi_ready_event *evt = d;
8fe59627 301
b8023177
VK		 302 wil->fw_version = le32_to_cpu(evt->sw_version);
303 wil->n_mids = evt->numof_additional_mids;
2be7d22f 304
15e23124
VK		 305 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
306 evt->mac, wil->n_mids);
2cd0f021 307 /* ignore MAC address, we already have it from the boot loader */
2be7d22f 308 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
b8023177 309 "%d", wil->fw_version);
2be7d22f 310
c33407a8 311 wil_set_recovery_state(wil, fw_recovery_idle);
9419b6a2 312 set_bit(wil_status_fwready, wil->status);
59502647 313 /* let the reset sequence continue */
2be7d22f
VK		 314 complete(&wil->wmi_ready);
315}
316
317static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
318{
319 struct wmi_rx_mgmt_packet_event *data = d;
320 struct wiphy *wiphy = wil_to_wiphy(wil);
321 struct ieee80211_mgmt *rx_mgmt_frame =
322 (struct ieee80211_mgmt *)data->payload;
90d89e9a
VK		 323 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
324 int ch_no;
325 u32 freq;
326 struct ieee80211_channel *channel;
327 s32 signal;
328 __le16 fc;
329 u32 d_len;
330 u16 d_status;
331
332 if (flen < 0) {
333 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
334 return;
335 }
336
337 d_len = le32_to_cpu(data->info.len);
338 if (d_len != flen) {
339 wil_err(wil,
340 "MGMT Rx: length mismatch, d_len %d should be %d\n",
341 d_len, flen);
342 return;
343 }
344
345 ch_no = data->info.channel + 1;
57fbcce3 346 freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
90d89e9a
VK		 347 channel = ieee80211_get_channel(wiphy, freq);
348 signal = data->info.sqi;
349 d_status = le16_to_cpu(data->info.status);
350 fc = rx_mgmt_frame->frame_control;
351
352 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
b8b33a3a
VK		 353 data->info.channel, data->info.mcs, data->info.snr,
354 data->info.sqi);
f27dbf78
VK		 355 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
356 le16_to_cpu(fc));
7743882d 357 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f 358 data->info.qid, data->info.mid, data->info.cid);
90d89e9a
VK		 359 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
360 d_len, true);
2be7d22f
VK		 361
362 if (!channel) {
363 wil_err(wil, "Frame on unsupported channel\n");
364 return;
365 }
366
367 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
368 struct cfg80211_bss *bss;
8eea944a
VK		 369 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
370 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
371 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
372 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
373 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
374 u.beacon.variable);
375 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
376 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
377 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
378 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
379 ie_len, true);
a0f7845b 380
e6d68341
DL		 381 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
382
a0f7845b
VK		 383 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
384 d_len, signal, GFP_KERNEL);
2be7d22f 385 if (bss) {
7743882d 386 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 387 rx_mgmt_frame->bssid);
5b112d3d 388 cfg80211_put_bss(wiphy, bss);
2be7d22f 389 } else {
5bc8c1f2 390 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
2be7d22f 391 }
102b1d99 392 } else {
4332cac1
LD		 393 mutex_lock(&wil->p2p_wdev_mutex);
394 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
970fdfa8 395 (void *)rx_mgmt_frame, d_len, 0);
4332cac1 396 mutex_unlock(&wil->p2p_wdev_mutex);
2be7d22f
VK		 397 }
398}
399
90d89e9a
VK		 400static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
401{
402 struct wmi_tx_mgmt_packet_event *data = d;
403 struct ieee80211_mgmt *mgmt_frame =
404 (struct ieee80211_mgmt *)data->payload;
405 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
406
407 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
408 flen, true);
409}
410
2be7d22f
VK		 411static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
412 void *d, int len)
413{
414 if (wil->scan_request) {
415 struct wmi_scan_complete_event *data = d;
6c2faf09 416 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 417
7743882d 418 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 419 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
420 wil->scan_request, aborted);
421
047e5d74 422 del_timer_sync(&wil->scan_timer);
4332cac1 423 mutex_lock(&wil->p2p_wdev_mutex);
2be7d22f 424 cfg80211_scan_done(wil->scan_request, aborted);
4332cac1
LD		 425 wil->radio_wdev = wil->wdev;
426 mutex_unlock(&wil->p2p_wdev_mutex);
2be7d22f
VK		 427 wil->scan_request = NULL;
428 } else {
429 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
430 }
431}
432
433static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
434{
435 struct net_device *ndev = wil_to_ndev(wil);
436 struct wireless_dev *wdev = wil->wdev;
437 struct wmi_connect_event *evt = d;
438 int ch; /* channel number */
439 struct station_info sinfo;
440 u8 *assoc_req_ie, *assoc_resp_ie;
441 size_t assoc_req_ielen, assoc_resp_ielen;
442 /* capinfo(u16) + listen_interval(u16) + IEs */
443 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
444 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
445 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
0916d9f2 446 int rc;
2be7d22f
VK		 447
448 if (len < sizeof(*evt)) {
449 wil_err(wil, "Connect event too short : %d bytes\n", len);
450 return;
451 }
452 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
453 evt->assoc_resp_len) {
454 wil_err(wil,
455 "Connect event corrupted : %d != %d + %d + %d + %d\n",
456 len, (int)sizeof(*evt), evt->beacon_ie_len,
457 evt->assoc_req_len, evt->assoc_resp_len);
458 return;
459 }
3df2cd36
VK		 460 if (evt->cid >= WIL6210_MAX_CID) {
461 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
462 return;
463 }
464
2be7d22f 465 ch = evt->channel + 1;
0916d9f2
ME		 466 wil_info(wil, "Connect %pM channel [%d] cid %d\n",
467 evt->bssid, ch, evt->cid);
7743882d 468 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 469 evt->assoc_info, len - sizeof(*evt), true);
470
471 /* figure out IE's */
472 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
473 assoc_req_ie_offset];
474 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
475 if (evt->assoc_req_len <= assoc_req_ie_offset) {
476 assoc_req_ie = NULL;
477 assoc_req_ielen = 0;
478 }
479
480 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
481 evt->assoc_req_len +
482 assoc_resp_ie_offset];
483 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
484 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
485 assoc_resp_ie = NULL;
486 assoc_resp_ielen = 0;
487 }
488
0916d9f2
ME		 489 mutex_lock(&wil->mutex);
490 if (test_bit(wil_status_resetting, wil->status) ||
491 !test_bit(wil_status_fwready, wil->status)) {
492 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
493 evt->cid);
494 mutex_unlock(&wil->mutex);
495 /* no need for cleanup, wil_reset will do that */
496 return;
497 }
498
2be7d22f
VK		 499 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
500 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
9419b6a2 501 if (!test_bit(wil_status_fwconnecting, wil->status)) {
2be7d22f 502 wil_err(wil, "Not in connecting state\n");
0916d9f2 503 mutex_unlock(&wil->mutex);
2be7d22f
VK		 504 return;
505 }
506 del_timer_sync(&wil->connect_timer);
3d287fb3
ME		 507 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
508 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
509 if (wil->sta[evt->cid].status != wil_sta_unused) {
510 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n",
511 __func__, wil->sta[evt->cid].status, evt->cid);
512 mutex_unlock(&wil->mutex);
513 return;
514 }
0916d9f2
ME		 515 }
516
517 /* FIXME FW can transmit only ucast frames to peer */
518 /* FIXME real ring_id instead of hard coded 0 */
519 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
520 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f 521
0916d9f2
ME		 522 rc = wil_tx_init(wil, evt->cid);
523 if (rc) {
524 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n",
525 __func__, evt->cid, rc);
526 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
527 WLAN_REASON_UNSPECIFIED, false);
528 } else {
529 wil_info(wil, "%s: successful connection to CID %d\n",
530 __func__, evt->cid);
531 }
532
533 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
534 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
535 if (rc) {
536 netif_tx_stop_all_queues(ndev);
537 netif_carrier_off(ndev);
538 wil_err(wil,
539 "%s: cfg80211_connect_result with failure\n",
540 __func__);
541 cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
542 NULL, 0,
543 WLAN_STATUS_UNSPECIFIED_FAILURE,
544 GFP_KERNEL);
545 goto out;
546 } else {
547 cfg80211_connect_result(ndev, evt->bssid,
548 assoc_req_ie, assoc_req_ielen,
549 assoc_resp_ie, assoc_resp_ielen,
550 WLAN_STATUS_SUCCESS,
551 GFP_KERNEL);
552 }
2be7d22f
VK		 553 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
554 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
0916d9f2
ME		 555 if (rc)
556 goto out;
557
2be7d22f
VK		 558 memset(&sinfo, 0, sizeof(sinfo));
559
560 sinfo.generation = wil->sinfo_gen++;
561
562 if (assoc_req_ie) {
563 sinfo.assoc_req_ies = assoc_req_ie;
564 sinfo.assoc_req_ies_len = assoc_req_ielen;
2be7d22f
VK		 565 }
566
567 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
0916d9f2
ME		 568 } else {
569 wil_err(wil, "%s: unhandled iftype %d for CID %d\n",
570 __func__, wdev->iftype, evt->cid);
571 goto out;
2be7d22f 572 }
2be7d22f 573
0916d9f2
ME		 574 wil->sta[evt->cid].status = wil_sta_connected;
575 set_bit(wil_status_fwconnected, wil->status);
576 netif_tx_wake_all_queues(ndev);
2be7d22f 577
0916d9f2
ME		 578out:
579 if (rc)
580 wil->sta[evt->cid].status = wil_sta_unused;
581 clear_bit(wil_status_fwconnecting, wil->status);
582 mutex_unlock(&wil->mutex);
2be7d22f
VK		 583}
584
585static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
586 void *d, int len)
587{
588 struct wmi_disconnect_event *evt = d;
4821e6d8 589 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
2be7d22f 590
0916d9f2
ME		 591 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
592 evt->bssid, reason_code, evt->disconnect_reason);
2be7d22f
VK		 593
594 wil->sinfo_gen++;
595
097638a0 596 mutex_lock(&wil->mutex);
4821e6d8 597 wil6210_disconnect(wil, evt->bssid, reason_code, true);
097638a0 598 mutex_unlock(&wil->mutex);
2be7d22f
VK		 599}
600
2be7d22f
VK		 601/*
602 * Firmware reports EAPOL frame using WME event.
603 * Reconstruct Ethernet frame and deliver it via normal Rx
604 */
605static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
606 void *d, int len)
607{
608 struct net_device *ndev = wil_to_ndev(wil);
609 struct wmi_eapol_rx_event *evt = d;
610 u16 eapol_len = le16_to_cpu(evt->eapol_len);
611 int sz = eapol_len + ETH_HLEN;
612 struct sk_buff *skb;
613 struct ethhdr *eth;
c8b78b5f
VK		 614 int cid;
615 struct wil_net_stats *stats = NULL;
2be7d22f 616
7743882d 617 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 618 evt->src_mac);
619
c8b78b5f
VK		 620 cid = wil_find_cid(wil, evt->src_mac);
621 if (cid >= 0)
622 stats = &wil->sta[cid].stats;
623
2be7d22f
VK		 624 if (eapol_len > 196) { /* TODO: revisit size limit */
625 wil_err(wil, "EAPOL too large\n");
626 return;
627 }
628
629 skb = alloc_skb(sz, GFP_KERNEL);
630 if (!skb) {
631 wil_err(wil, "Failed to allocate skb\n");
632 return;
633 }
c8b78b5f 634
2be7d22f 635 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
a82553bb
VK		 636 ether_addr_copy(eth->h_dest, ndev->dev_addr);
637 ether_addr_copy(eth->h_source, evt->src_mac);
2be7d22f
VK		 638 eth->h_proto = cpu_to_be16(ETH_P_PAE);
639 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
640 skb->protocol = eth_type_trans(skb, ndev);
641 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
642 ndev->stats.rx_packets++;
c8b78b5f
VK		 643 ndev->stats.rx_bytes += sz;
644 if (stats) {
645 stats->rx_packets++;
646 stats->rx_bytes += sz;
647 }
2be7d22f
VK		 648 } else {
649 ndev->stats.rx_dropped++;
c8b78b5f
VK		 650 if (stats)
651 stats->rx_dropped++;
2be7d22f
VK		 652 }
653}
654
230d8442 655static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
3a124ed6 656{
230d8442
VK		 657 struct wmi_vring_en_event *evt = d;
658 u8 vri = evt->vring_index;
3a124ed6 659
230d8442 660 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
3a124ed6 661
230d8442
VK		 662 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
663 wil_err(wil, "Enable for invalid vring %d\n", vri);
e58c9f70
VK		 664 return;
665 }
230d8442
VK		 666 wil->vring_tx_data[vri].dot1x_open = true;
667 if (vri == wil->bcast_vring) /* no BA for bcast */
e58c9f70 668 return;
230d8442
VK		 669 if (agg_wsize >= 0)
670 wil_addba_tx_request(wil, vri, agg_wsize);
3442a504
VK		 671}
672
249a382b
VK		 673static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
674 int len)
675{
b874ddec 676 struct wmi_ba_status_event *evt = d;
3277213f 677 struct vring_tx_data *txdata;
249a382b 678
cbcf5866 679 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
7b05b0ab
VK		 680 evt->ringid,
681 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
cbcf5866
VK		 682 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
683 evt->amsdu ? "+" : "-");
7b05b0ab
VK		 684
685 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
686 wil_err(wil, "invalid ring id %d\n", evt->ringid);
687 return;
b4490f42
VK		 688 }
689
3277213f
VK		 690 if (evt->status != WMI_BA_AGREED) {
691 evt->ba_timeout = 0;
692 evt->agg_wsize = 0;
cbcf5866 693 evt->amsdu = 0;
7b05b0ab
VK		 694 }
695
3277213f 696 txdata = &wil->vring_tx_data[evt->ringid];
ec81b5ad 697
3277213f
VK		 698 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
699 txdata->agg_wsize = evt->agg_wsize;
cbcf5866 700 txdata->agg_amsdu = evt->amsdu;
3a124ed6 701 txdata->addba_in_progress = false;
3277213f 702}
ec81b5ad 703
3277213f
VK		 704static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
705 int len)
706{
707 struct wmi_rcp_addba_req_event *evt = d;
ec81b5ad 708
3277213f
VK		 709 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
710 evt->ba_param_set, evt->ba_timeout,
711 evt->ba_seq_ctrl);
712}
ec81b5ad 713
3277213f 714static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
bd33273b 715__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
3277213f
VK		 716{
717 struct wmi_delba_event *evt = d;
718 u8 cid, tid;
719 u16 reason = __le16_to_cpu(evt->reason);
720 struct wil_sta_info *sta;
721 struct wil_tid_ampdu_rx *r;
3277213f 722
bd33273b 723 might_sleep();
3277213f
VK		 724 parse_cidxtid(evt->cidxtid, &cid, &tid);
725 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
726 cid, tid,
727 evt->from_initiator ? "originator" : "recipient",
728 reason);
729 if (!evt->from_initiator) {
730 int i;
731 /* find Tx vring it belongs to */
732 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
733 if ((wil->vring2cid_tid[i][0] == cid) &&
734 (wil->vring2cid_tid[i][1] == tid)) {
735 struct vring_tx_data *txdata =
736 &wil->vring_tx_data[i];
737
738 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
739 txdata->agg_timeout = 0;
740 txdata->agg_wsize = 0;
3a124ed6 741 txdata->addba_in_progress = false;
3277213f
VK		 742
743 break; /* max. 1 matching ring */
744 }
745 }
746 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
747 wil_err(wil, "DELBA: unable to find Tx vring\n");
748 return;
7b05b0ab 749 }
8c86f757 750
3277213f
VK		 751 sta = &wil->sta[cid];
752
bd33273b 753 spin_lock_bh(&sta->tid_rx_lock);
3277213f
VK		 754
755 r = sta->tid_rx[tid];
756 sta->tid_rx[tid] = NULL;
757 wil_tid_ampdu_rx_free(wil, r);
758
bd33273b 759 spin_unlock_bh(&sta->tid_rx_lock);
249a382b
VK		 760}
761
b03fbab0
VK		 762/**
763 * Some events are ignored for purpose; and need not be interpreted as
764 * "unhandled events"
765 */
766static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
767{
768 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
769}
770
2be7d22f
VK		 771static const struct {
772 int eventid;
773 void (*handler)(struct wil6210_priv *wil, int eventid,
774 void *data, int data_len);
775} wmi_evt_handlers[] = {
776 {WMI_READY_EVENTID, wmi_evt_ready},
817f1853 777 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
2be7d22f 778 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
90d89e9a 779 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
2be7d22f
VK		 780 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
781 {WMI_CONNECT_EVENTID, wmi_evt_connect},
782 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 783 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
249a382b 784 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
3277213f
VK		 785 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
786 {WMI_DELBA_EVENTID, wmi_evt_delba},
230d8442 787 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
b03fbab0 788 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
2be7d22f
VK		 789};
790
791/*
792 * Run in IRQ context
793 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
794 * that will be eventually handled by the @wmi_event_worker in the thread
795 * context of thread "wil6210_wmi"
796 */
797void wmi_recv_cmd(struct wil6210_priv *wil)
798{
799 struct wil6210_mbox_ring_desc d_tail;
800 struct wil6210_mbox_hdr hdr;
801 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
802 struct pending_wmi_event *evt;
803 u8 *cmd;
804 void __iomem *src;
805 ulong flags;
a715c7dd 806 unsigned n;
0916d9f2 807 unsigned int num_immed_reply = 0;
2be7d22f 808
817f1853 809 if (!test_bit(wil_status_mbox_ready, wil->status)) {
4cf99c93 810 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 811 return;
812 }
813
a715c7dd 814 for (n = 0;; n++) {
2be7d22f 815 u16 len;
95266dc0 816 bool q;
0916d9f2 817 bool immed_reply = false;
2be7d22f 818
b9eeb512
VK		 819 r->head = wil_r(wil, RGF_MBOX +
820 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 821 if (r->tail == r->head)
822 break;
2be7d22f 823
a715c7dd
VK		 824 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
825 r->head, r->tail);
826 /* read cmd descriptor from tail */
2be7d22f
VK		 827 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
828 sizeof(struct wil6210_mbox_ring_desc));
829 if (d_tail.sync == 0) {
830 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 831 break;
2be7d22f
VK		 832 }
833
a715c7dd 834 /* read cmd header from descriptor */
2be7d22f
VK		 835 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
836 wil_err(wil, "Mbox evt at 0x%08x?\n",
837 le32_to_cpu(d_tail.addr));
95266dc0 838 break;
2be7d22f 839 }
2be7d22f 840 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 841 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
842 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
843 hdr.flags);
844
845 /* read cmd buffer from descriptor */
2be7d22f
VK		 846 src = wmi_buffer(wil, d_tail.addr) +
847 sizeof(struct wil6210_mbox_hdr);
848 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
849 event.wmi) + len, 4),
850 GFP_KERNEL);
14f8dc49 851 if (!evt)
95266dc0 852 break;
14f8dc49 853
2be7d22f
VK		 854 evt->event.hdr = hdr;
855 cmd = (void *)&evt->event.wmi;
856 wil_memcpy_fromio_32(cmd, src, len);
857 /* mark entry as empty */
b9eeb512
VK		 858 wil_w(wil, r->tail +
859 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
2be7d22f 860 /* indicate */
2be7d22f 861 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 862 (len >= sizeof(struct wmi_cmd_hdr))) {
863 struct wmi_cmd_hdr *wmi = &evt->event.wmi;
864 u16 id = le16_to_cpu(wmi->command_id);
865 u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
fe5c271e 866 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
0916d9f2
ME		 867 if (wil->reply_id && wil->reply_id == id) {
868 if (wil->reply_buf) {
869 memcpy(wil->reply_buf, wmi,
870 min(len, wil->reply_size));
871 immed_reply = true;
872 }
873 }
fe5c271e 874 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
8fe59627 875
f988b23f
VK		 876 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
877 id, wmi->mid, tstamp);
878 trace_wil6210_wmi_event(wmi, &wmi[1],
879 len - sizeof(*wmi));
2be7d22f 880 }
7743882d 881 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 882 &evt->event.hdr, sizeof(hdr) + len, true);
883
884 /* advance tail */
885 r->tail = r->base + ((r->tail - r->base +
886 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
b9eeb512
VK		 887 wil_w(wil, RGF_MBOX +
888 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
2be7d22f 889
0916d9f2
ME		 890 if (immed_reply) {
891 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
892 __func__, wil->reply_id);
893 kfree(evt);
894 num_immed_reply++;
895 complete(&wil->wmi_call);
896 } else {
897 /* add to the pending list */
898 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
899 list_add_tail(&evt->list, &wil->pending_wmi_ev);
900 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
901 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
902 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
903 }
2be7d22f 904 }
95266dc0 905 /* normally, 1 event per IRQ should be processed */
0916d9f2
ME		 906 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__,
907 n - num_immed_reply, num_immed_reply);
2be7d22f
VK		 908}
909
910int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
911 u16 reply_id, void *reply, u8 reply_size, int to_msec)
912{
913 int rc;
f4bbb829 914 unsigned long remain;
2be7d22f
VK		 915
916 mutex_lock(&wil->wmi_mutex);
917
fe5c271e
ME		 918 spin_lock(&wil->wmi_ev_lock);
919 wil->reply_id = reply_id;
920 wil->reply_buf = reply;
921 wil->reply_size = reply_size;
922 spin_unlock(&wil->wmi_ev_lock);
923
2be7d22f
VK		 924 rc = __wmi_send(wil, cmdid, buf, len);
925 if (rc)
926 goto out;
927
59502647
DL		 928 remain = wait_for_completion_timeout(&wil->wmi_call,
929 msecs_to_jiffies(to_msec));
2be7d22f
VK		 930 if (0 == remain) {
931 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
932 cmdid, reply_id, to_msec);
933 rc = -ETIME;
934 } else {
7743882d 935 wil_dbg_wmi(wil,
2be7d22f
VK		 936 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
937 cmdid, reply_id,
938 to_msec - jiffies_to_msecs(remain));
939 }
fe5c271e
ME		 940
941out:
942 spin_lock(&wil->wmi_ev_lock);
2be7d22f
VK		 943 wil->reply_id = 0;
944 wil->reply_buf = NULL;
945 wil->reply_size = 0;
fe5c271e
ME		 946 spin_unlock(&wil->wmi_ev_lock);
947
2be7d22f
VK		 948 mutex_unlock(&wil->wmi_mutex);
949
950 return rc;
951}
952
953int wmi_echo(struct wil6210_priv *wil)
954{
955 struct wmi_echo_cmd cmd = {
956 .value = cpu_to_le32(0x12345678),
957 };
958
959 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
a54a40da 960 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
2be7d22f
VK		 961}
962
963int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
964{
965 struct wmi_set_mac_address_cmd cmd;
966
a82553bb 967 ether_addr_copy(cmd.mac, addr);
2be7d22f 968
7743882d 969 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 970
971 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
972}
973
8e52fe30 974int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
b4944f2c 975 u8 chan, u8 hidden_ssid, u8 is_go)
2be7d22f 976{
b8023177
VK		 977 int rc;
978
979 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 980 .bcon_interval = cpu_to_le16(bi),
981 .network_type = wmi_nettype,
982 .disable_sec_offload = 1,
adc2d122 983 .channel = chan - 1,
1eb9d1e5 984 .pcp_max_assoc_sta = max_assoc_sta,
8e52fe30 985 .hidden_ssid = hidden_ssid,
b4944f2c 986 .is_go = is_go,
2be7d22f 987 };
b8023177 988 struct {
b874ddec 989 struct wmi_cmd_hdr wmi;
b8023177
VK		 990 struct wmi_pcp_started_event evt;
991 } __packed reply;
2be7d22f 992
774974e5 993 if (!wil->privacy)
2be7d22f
VK		 994 cmd.disable_sec = 1;
995
1eb9d1e5
DL		 996 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
997 (cmd.pcp_max_assoc_sta <= 0)) {
998 wil_info(wil,
999 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
1000 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
1001 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
1002 }
1003
8b5c7f6c
VK		 1004 /*
1005 * Processing time may be huge, in case of secure AP it takes about
1006 * 3500ms for FW to start AP
1007 */
b8023177 1008 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 1009 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 1010 if (rc)
1011 return rc;
1012
1013 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1014 rc = -EINVAL;
1015
1016 return rc;
1017}
1018
1019int wmi_pcp_stop(struct wil6210_priv *wil)
1020{
1021 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1022 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 1023}
1024
1025int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1026{
1027 struct wmi_set_ssid_cmd cmd = {
1028 .ssid_len = cpu_to_le32(ssid_len),
1029 };
1030
1031 if (ssid_len > sizeof(cmd.ssid))
1032 return -EINVAL;
1033
1034 memcpy(cmd.ssid, ssid, ssid_len);
1035
1036 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1037}
1038
1039int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1040{
1041 int rc;
1042 struct {
b874ddec 1043 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1044 struct wmi_set_ssid_cmd cmd;
1045 } __packed reply;
1046 int len; /* reply.cmd.ssid_len in CPU order */
1047
1048 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1049 &reply, sizeof(reply), 20);
1050 if (rc)
1051 return rc;
1052
1053 len = le32_to_cpu(reply.cmd.ssid_len);
1054 if (len > sizeof(reply.cmd.ssid))
1055 return -EINVAL;
1056
1057 *ssid_len = len;
1058 memcpy(ssid, reply.cmd.ssid, len);
1059
1060 return 0;
1061}
1062
1063int wmi_set_channel(struct wil6210_priv *wil, int channel)
1064{
1065 struct wmi_set_pcp_channel_cmd cmd = {
1066 .channel = channel - 1,
1067 };
1068
1069 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1070}
1071
1072int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1073{
1074 int rc;
1075 struct {
b874ddec 1076 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1077 struct wmi_set_pcp_channel_cmd cmd;
1078 } __packed reply;
1079
1080 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1081 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1082 if (rc)
1083 return rc;
1084
1085 if (reply.cmd.channel > 3)
1086 return -EINVAL;
1087
1088 *channel = reply.cmd.channel + 1;
1089
1090 return 0;
1091}
1092
e6d68341 1093int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
b8023177 1094{
e6d68341 1095 int rc;
b8023177 1096 struct wmi_p2p_cfg_cmd cmd = {
e6d68341
DL		 1097 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1098 .bcon_interval = cpu_to_le16(bi),
b8023177
VK		 1099 .channel = channel - 1,
1100 };
e6d68341
DL		 1101 struct {
1102 struct wmi_cmd_hdr wmi;
1103 struct wmi_p2p_cfg_done_event evt;
1104 } __packed reply;
1105
1106 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1107
1108 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1109 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1110 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1111 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1112 rc = -EINVAL;
1113 }
1114
1115 return rc;
1116}
1117
1118int wmi_start_listen(struct wil6210_priv *wil)
1119{
1120 int rc;
1121 struct {
1122 struct wmi_cmd_hdr wmi;
1123 struct wmi_listen_started_event evt;
1124 } __packed reply;
1125
1126 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1127
1128 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1129 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1130 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1131 wil_err(wil, "device failed to start listen. status %d\n",
1132 reply.evt.status);
1133 rc = -EINVAL;
1134 }
b8023177 1135
e6d68341
DL		 1136 return rc;
1137}
1138
1139int wmi_start_search(struct wil6210_priv *wil)
1140{
1141 int rc;
1142 struct {
1143 struct wmi_cmd_hdr wmi;
1144 struct wmi_search_started_event evt;
1145 } __packed reply;
1146
1147 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1148
1149 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1150 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1151 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1152 wil_err(wil, "device failed to start search. status %d\n",
1153 reply.evt.status);
1154 rc = -EINVAL;
1155 }
1156
1157 return rc;
1158}
1159
1160int wmi_stop_discovery(struct wil6210_priv *wil)
1161{
1162 int rc;
1163
1164 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1165
1166 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1167 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1168
1169 if (rc)
1170 wil_err(wil, "Failed to stop discovery\n");
1171
1172 return rc;
b8023177
VK		 1173}
1174
2be7d22f 1175int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442 1176 const void *mac_addr, int key_usage)
2be7d22f
VK		 1177{
1178 struct wmi_delete_cipher_key_cmd cmd = {
1179 .key_index = key_index,
1180 };
1181
1182 if (mac_addr)
1183 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1184
1185 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1186}
1187
1188int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442
VK		 1189 const void *mac_addr, int key_len, const void *key,
1190 int key_usage)
2be7d22f
VK		 1191{
1192 struct wmi_add_cipher_key_cmd cmd = {
1193 .key_index = key_index,
230d8442 1194 .key_usage = key_usage,
2be7d22f
VK		 1195 .key_len = key_len,
1196 };
1197
1198 if (!key || (key_len > sizeof(cmd.key)))
1199 return -EINVAL;
1200
1201 memcpy(cmd.key, key, key_len);
1202 if (mac_addr)
1203 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1204
1205 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1206}
1207
1208int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1209{
5421bf0c
VK		 1210 static const char *const names[] = {
1211 [WMI_FRAME_BEACON] = "BEACON",
1212 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1213 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1214 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1215 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1216 };
2be7d22f
VK		 1217 int rc;
1218 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1219 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 1220
5421bf0c
VK		 1221 if (!cmd) {
1222 rc = -ENOMEM;
1223 goto out;
1224 }
ac4acdb7
VK		 1225 if (!ie)
1226 ie_len = 0;
2be7d22f
VK		 1227
1228 cmd->mgmt_frm_type = type;
1229 /* BUG: FW API define ieLen as u8. Will fix FW */
1230 cmd->ie_len = cpu_to_le16(ie_len);
1231 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 1232 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f 1233 kfree(cmd);
5421bf0c
VK		 1234out:
1235 if (rc) {
1236 const char *name = type < ARRAY_SIZE(names) ?
1237 names[type] : "??";
1238 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1239 }
2be7d22f
VK		 1240
1241 return rc;
1242}
1243
1647f12f
VK		 1244/**
1245 * wmi_rxon - turn radio on/off
1246 * @on: turn on if true, off otherwise
1247 *
1248 * Only switch radio. Channel should be set separately.
1249 * No timeout for rxon - radio turned on forever unless some other call
1250 * turns it off
1251 */
1252int wmi_rxon(struct wil6210_priv *wil, bool on)
1253{
1254 int rc;
1255 struct {
b874ddec 1256 struct wmi_cmd_hdr wmi;
1647f12f
VK		 1257 struct wmi_listen_started_event evt;
1258 } __packed reply;
1259
1260 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1261
1262 if (on) {
1263 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1264 WMI_LISTEN_STARTED_EVENTID,
1265 &reply, sizeof(reply), 100);
1266 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1267 rc = -EINVAL;
1268 } else {
1269 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1270 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1271 }
1272
1273 return rc;
1274}
1275
47e19af9
VK		 1276int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1277{
1278 struct wireless_dev *wdev = wil->wdev;
1279 struct net_device *ndev = wil_to_ndev(wil);
1280 struct wmi_cfg_rx_chain_cmd cmd = {
1281 .action = WMI_RX_CHAIN_ADD,
1282 .rx_sw_ring = {
c44690a1 1283 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
47e19af9
VK		 1284 .ring_mem_base = cpu_to_le64(vring->pa),
1285 .ring_size = cpu_to_le16(vring->size),
1286 },
1287 .mid = 0, /* TODO - what is it? */
1288 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1289 .reorder_type = WMI_RX_SW_REORDER,
ab954628 1290 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
47e19af9
VK		 1291 };
1292 struct {
b874ddec 1293 struct wmi_cmd_hdr wmi;
47e19af9
VK		 1294 struct wmi_cfg_rx_chain_done_event evt;
1295 } __packed evt;
1296 int rc;
1297
1298 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1299 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1300
1301 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1302 if (ch)
1303 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1304 cmd.sniffer_cfg.phy_info_mode =
1305 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1306 cmd.sniffer_cfg.phy_support =
1307 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
4765332d 1308 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
504937d4
KE		 1309 } else {
1310 /* Initialize offload (in non-sniffer mode).
1311 * Linux IP stack always calculates IP checksum
1312 * HW always calculate TCP/UDP checksum
1313 */
1314 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9 1315 }
c406ea7c
VK		 1316
1317 if (rx_align_2)
1318 cmd.l2_802_3_offload_ctrl |=
1319 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1320
47e19af9
VK		 1321 /* typical time for secure PCP is 840ms */
1322 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1323 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1324 if (rc)
1325 return rc;
1326
1327 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1328
7743882d 1329 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1330 le32_to_cpu(evt.evt.status), vring->hwtail);
1331
1332 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1333 rc = -EINVAL;
1334
1335 return rc;
1336}
1337
8c679675 1338int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1a2780e0
VK		 1339{
1340 int rc;
1341 struct wmi_temp_sense_cmd cmd = {
8c679675
VK		 1342 .measure_baseband_en = cpu_to_le32(!!t_bb),
1343 .measure_rf_en = cpu_to_le32(!!t_rf),
1344 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1a2780e0
VK		 1345 };
1346 struct {
b874ddec 1347 struct wmi_cmd_hdr wmi;
1a2780e0
VK		 1348 struct wmi_temp_sense_done_event evt;
1349 } __packed reply;
1350
1351 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1352 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1353 if (rc)
1354 return rc;
1355
8c679675
VK		 1356 if (t_bb)
1357 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1358 if (t_rf)
1359 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1a2780e0
VK		 1360
1361 return 0;
1362}
1363
0916d9f2
ME		 1364int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason,
1365 bool full_disconnect)
4d55a0a1 1366{
3e9191fc
VK		 1367 int rc;
1368 u16 reason_code;
4d55a0a1
VK		 1369 struct wmi_disconnect_sta_cmd cmd = {
1370 .disconnect_reason = cpu_to_le16(reason),
1371 };
3e9191fc 1372 struct {
b874ddec 1373 struct wmi_cmd_hdr wmi;
3e9191fc
VK		 1374 struct wmi_disconnect_event evt;
1375 } __packed reply;
a82553bb
VK		 1376
1377 ether_addr_copy(cmd.dst_mac, mac);
4d55a0a1
VK		 1378
1379 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1380
3e9191fc
VK		 1381 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1382 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1383 /* failure to disconnect in reasonable time treated as FW error */
1384 if (rc) {
1385 wil_fw_error_recovery(wil);
1386 return rc;
1387 }
1388
0916d9f2
ME		 1389 if (full_disconnect) {
1390 /* call event handler manually after processing wmi_call,
1391 * to avoid deadlock - disconnect event handler acquires
1392 * wil->mutex while it is already held here
1393 */
1394 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
3e9191fc 1395
0916d9f2
ME		 1396 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1397 reply.evt.bssid, reason_code,
1398 reply.evt.disconnect_reason);
3e9191fc 1399
0916d9f2
ME		 1400 wil->sinfo_gen++;
1401 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1402 }
3e9191fc 1403 return 0;
4d55a0a1
VK		 1404}
1405
3277213f
VK		 1406int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1407{
1408 struct wmi_vring_ba_en_cmd cmd = {
1409 .ringid = ringid,
1410 .agg_max_wsize = size,
1411 .ba_timeout = cpu_to_le16(timeout),
cbcf5866 1412 .amsdu = 0,
3277213f
VK		 1413 };
1414
1415 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1416 ringid, size, timeout);
1417
1418 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1419}
1420
26a359d9 1421int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
3277213f
VK		 1422{
1423 struct wmi_vring_ba_dis_cmd cmd = {
1424 .ringid = ringid,
1425 .reason = cpu_to_le16(reason),
1426 };
1427
1428 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1429 ringid, reason);
1430
1431 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1432}
1433
26a359d9
VK		 1434int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1435{
1436 struct wmi_rcp_delba_cmd cmd = {
1437 .cidxtid = cidxtid,
1438 .reason = cpu_to_le16(reason),
1439 };
1440
1441 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1442 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1443
1444 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1445}
1446
3277213f
VK		 1447int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1448 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1449{
1450 int rc;
1451 struct wmi_rcp_addba_resp_cmd cmd = {
1452 .cidxtid = mk_cidxtid(cid, tid),
1453 .dialog_token = token,
1454 .status_code = cpu_to_le16(status),
1455 /* bit 0: A-MSDU supported
1456 * bit 1: policy (should be 0 for us)
1457 * bits 2..5: TID
1458 * bits 6..15: buffer size
1459 */
1460 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1461 (agg_wsize << 6)),
1462 .ba_timeout = cpu_to_le16(timeout),
1463 };
1464 struct {
b874ddec 1465 struct wmi_cmd_hdr wmi;
3277213f
VK		 1466 struct wmi_rcp_addba_resp_sent_event evt;
1467 } __packed reply;
1468
1469 wil_dbg_wmi(wil,
1470 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1471 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1472
1473 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
230d8442
VK		 1474 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1475 100);
3277213f
VK		 1476 if (rc)
1477 return rc;
1478
1479 if (reply.evt.status) {
1480 wil_err(wil, "ADDBA response failed with status %d\n",
1481 le16_to_cpu(reply.evt.status));
1482 rc = -EINVAL;
1483 }
1484
1485 return rc;
1486}
1487
2be7d22f
VK		 1488void wmi_event_flush(struct wil6210_priv *wil)
1489{
1490 struct pending_wmi_event *evt, *t;
1491
7743882d 1492 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1493
1494 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1495 list_del(&evt->list);
1496 kfree(evt);
1497 }
1498}
1499
1500static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1501 void *d, int len)
1502{
1503 uint i;
1504
1505 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1506 if (wmi_evt_handlers[i].eventid == id) {
1507 wmi_evt_handlers[i].handler(wil, id, d, len);
1508 return true;
1509 }
1510 }
1511
1512 return false;
1513}
1514
1515static void wmi_event_handle(struct wil6210_priv *wil,
1516 struct wil6210_mbox_hdr *hdr)
1517{
1518 u16 len = le16_to_cpu(hdr->len);
1519
1520 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 1521 (len >= sizeof(struct wmi_cmd_hdr))) {
1522 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
2be7d22f 1523 void *evt_data = (void *)(&wmi[1]);
b874ddec 1524 u16 id = le16_to_cpu(wmi->command_id);
028e1836
VK		 1525
1526 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1527 id, wil->reply_id);
2be7d22f
VK		 1528 /* check if someone waits for this event */
1529 if (wil->reply_id && wil->reply_id == id) {
0916d9f2
ME		 1530 WARN_ON(wil->reply_buf);
1531 wmi_evt_call_handler(wil, id, evt_data,
1532 len - sizeof(*wmi));
1533 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
1534 __func__, id);
59502647 1535 complete(&wil->wmi_call);
2be7d22f
VK		 1536 return;
1537 }
1538 /* unsolicited event */
1539 /* search for handler */
1540 if (!wmi_evt_call_handler(wil, id, evt_data,
1541 len - sizeof(*wmi))) {
a3ce5ccd 1542 wil_info(wil, "Unhandled event 0x%04x\n", id);
2be7d22f
VK		 1543 }
1544 } else {
1545 wil_err(wil, "Unknown event type\n");
1546 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1547 hdr, sizeof(*hdr) + len, true);
1548 }
1549}
1550
1551/*
1552 * Retrieve next WMI event from the pending list
1553 */
1554static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1555{
1556 ulong flags;
1557 struct list_head *ret = NULL;
1558
1559 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1560
1561 if (!list_empty(&wil->pending_wmi_ev)) {
1562 ret = wil->pending_wmi_ev.next;
1563 list_del(ret);
1564 }
1565
1566 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1567
1568 return ret;
1569}
1570
1571/*
1572 * Handler for the WMI events
1573 */
1574void wmi_event_worker(struct work_struct *work)
1575{
1576 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1577 wmi_event_worker);
1578 struct pending_wmi_event *evt;
1579 struct list_head *lh;
1580
028e1836 1581 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 1582 while ((lh = next_wmi_ev(wil)) != NULL) {
1583 evt = list_entry(lh, struct pending_wmi_event, list);
1584 wmi_event_handle(wil, &evt->event.hdr);
1585 kfree(evt);
1586 }
028e1836 1587 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1588}
Linux kernel - Deliverables
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