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wil6210: consider SNAP header in MTU calculations
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f 1/*
02525a79 2 * Copyright (c) 2012-2014 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
1eb9d1e5
DL		 26static uint max_assoc_sta = 1;
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
VK		 87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
88 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
2be7d22f
VK		 89 /*
90 * 920000..930000 ucode code RAM
91 * 930000..932000 ucode data RAM
af6b48db 92 * 932000..949000 back-door debug data
2be7d22f
VK		 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 */
101static 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 */
122void __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 */
144void __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
161int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
162 struct wil6210_mbox_hdr *hdr)
163{
164 void __iomem *src = wmi_buffer(wil, ptr);
8fe59627 165
2be7d22f
VK		 166 if (!src)
167 return -EINVAL;
168
169 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
170
171 return 0;
172}
173
174static 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 = {
f988b23f 186 .mid = 0,
2be7d22f 187 .id = cpu_to_le16(cmdid),
2be7d22f
VK		 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;
2be7d22f
VK		 201 }
202
203 might_sleep();
204
205 if (!test_bit(wil_status_fwready, &wil->status)) {
15e23124 206 wil_err(wil, "WMI: cannot send command while FW not ready\n");
2be7d22f
VK		 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);
7743882d 227 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
2be7d22f
VK		 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 */
7743882d
VK		 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,
2be7d22f 250 sizeof(cmd), true);
7743882d 251 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 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
f988b23f 262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 263
2be7d22f
VK		 264 /* interrupt to FW */
265 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
266
267 return 0;
268}
269
270int 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 ===*/
282static 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;
8fe59627 287
b8023177
VK		 288 wil->fw_version = le32_to_cpu(evt->sw_version);
289 wil->n_mids = evt->numof_additional_mids;
2be7d22f 290
15e23124
VK		 291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
292 evt->mac, wil->n_mids);
2be7d22f
VK		 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),
b8023177 299 "%d", wil->fw_version);
2be7d22f
VK		 300}
301
302static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
303 int len)
304{
15e23124 305 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
2be7d22f 306
c33407a8 307 wil_set_recovery_state(wil, fw_recovery_idle);
2be7d22f 308 set_bit(wil_status_fwready, &wil->status);
59502647 309 /* let the reset sequence continue */
2be7d22f
VK		 310 complete(&wil->wmi_ready);
311}
312
313static 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);
b8b33a3a 323 s32 signal = data->info.sqi;
2be7d22f
VK		 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
b8b33a3a
VK		 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);
f27dbf78
VK		 331 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
332 le16_to_cpu(fc));
7743882d 333 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f
VK		 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;
8eea944a
VK		 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);
a0f7845b
VK		 354
355 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
356 d_len, signal, GFP_KERNEL);
2be7d22f 357 if (bss) {
7743882d 358 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 359 rx_mgmt_frame->bssid);
5b112d3d 360 cfg80211_put_bss(wiphy, bss);
2be7d22f 361 } else {
5bc8c1f2 362 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
2be7d22f 363 }
102b1d99
VK		 364 } else {
365 cfg80211_rx_mgmt(wil->wdev, freq, signal,
970fdfa8 366 (void *)rx_mgmt_frame, d_len, 0);
2be7d22f
VK		 367 }
368}
369
370static 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;
6c2faf09 375 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 376
7743882d 377 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 378 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
379 wil->scan_request, aborted);
380
047e5d74 381 del_timer_sync(&wil->scan_timer);
2be7d22f
VK		 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
389static 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 }
3df2cd36
VK		 415 if (evt->cid >= WIL6210_MAX_CID) {
416 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
417 return;
418 }
419
2be7d22f 420 ch = evt->channel + 1;
7743882d 421 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
2be7d22f 422 evt->bssid, ch, evt->cid);
7743882d 423 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 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)) {
b338f74e 446 if (!test_bit(wil_status_fwconnecting, &wil->status)) {
2be7d22f
VK		 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 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
466 }
467
468 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
469 }
b338f74e 470 clear_bit(wil_status_fwconnecting, &wil->status);
2be7d22f
VK		 471 set_bit(wil_status_fwconnected, &wil->status);
472
473 /* FIXME FW can transmit only ucast frames to peer */
474 /* FIXME real ring_id instead of hard coded 0 */
3df2cd36
VK		 475 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
476 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f
VK		 477
478 wil->pending_connect_cid = evt->cid;
3277213f 479 queue_work(wil->wq_service, &wil->connect_worker);
2be7d22f
VK		 480}
481
482static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
483 void *d, int len)
484{
485 struct wmi_disconnect_event *evt = d;
4821e6d8 486 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
2be7d22f 487
4821e6d8
VK		 488 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
489 evt->bssid, reason_code, evt->disconnect_reason);
2be7d22f
VK		 490
491 wil->sinfo_gen++;
492
097638a0 493 mutex_lock(&wil->mutex);
4821e6d8 494 wil6210_disconnect(wil, evt->bssid, reason_code, true);
097638a0 495 mutex_unlock(&wil->mutex);
2be7d22f
VK		 496}
497
2be7d22f
VK		 498/*
499 * Firmware reports EAPOL frame using WME event.
500 * Reconstruct Ethernet frame and deliver it via normal Rx
501 */
502static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
503 void *d, int len)
504{
505 struct net_device *ndev = wil_to_ndev(wil);
506 struct wmi_eapol_rx_event *evt = d;
507 u16 eapol_len = le16_to_cpu(evt->eapol_len);
508 int sz = eapol_len + ETH_HLEN;
509 struct sk_buff *skb;
510 struct ethhdr *eth;
c8b78b5f
VK		 511 int cid;
512 struct wil_net_stats *stats = NULL;
2be7d22f 513
7743882d 514 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 515 evt->src_mac);
516
c8b78b5f
VK		 517 cid = wil_find_cid(wil, evt->src_mac);
518 if (cid >= 0)
519 stats = &wil->sta[cid].stats;
520
2be7d22f
VK		 521 if (eapol_len > 196) { /* TODO: revisit size limit */
522 wil_err(wil, "EAPOL too large\n");
523 return;
524 }
525
526 skb = alloc_skb(sz, GFP_KERNEL);
527 if (!skb) {
528 wil_err(wil, "Failed to allocate skb\n");
529 return;
530 }
c8b78b5f 531
2be7d22f
VK		 532 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
533 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
534 memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
535 eth->h_proto = cpu_to_be16(ETH_P_PAE);
536 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
537 skb->protocol = eth_type_trans(skb, ndev);
538 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
539 ndev->stats.rx_packets++;
c8b78b5f
VK		 540 ndev->stats.rx_bytes += sz;
541 if (stats) {
542 stats->rx_packets++;
543 stats->rx_bytes += sz;
544 }
2be7d22f
VK		 545 } else {
546 ndev->stats.rx_dropped++;
c8b78b5f
VK		 547 if (stats)
548 stats->rx_dropped++;
2be7d22f
VK		 549 }
550}
551
3a3def8d 552static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize)
3a124ed6
VK		 553{
554 struct vring_tx_data *t;
555 int i;
556
557 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
558 if (cid != wil->vring2cid_tid[i][0])
559 continue;
560 t = &wil->vring_tx_data[i];
561 if (!t->enabled)
562 continue;
563
3a3def8d 564 wil_addba_tx_request(wil, i, wsize);
3a124ed6
VK		 565 }
566}
567
3442a504
VK		 568static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
569{
570 struct net_device *ndev = wil_to_ndev(wil);
571 struct wmi_data_port_open_event *evt = d;
e58c9f70 572 u8 cid = evt->cid;
3442a504 573
e58c9f70 574 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
3442a504 575
e58c9f70
VK		 576 if (cid >= ARRAY_SIZE(wil->sta)) {
577 wil_err(wil, "Link UP for invalid CID %d\n", cid);
578 return;
579 }
580
581 wil->sta[cid].data_port_open = true;
3a3def8d
VK		 582 if (agg_wsize >= 0)
583 wil_addba_tx_cid(wil, cid, agg_wsize);
3442a504
VK		 584 netif_carrier_on(ndev);
585}
586
587static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
588{
589 struct net_device *ndev = wil_to_ndev(wil);
590 struct wmi_wbe_link_down_event *evt = d;
e58c9f70 591 u8 cid = evt->cid;
3442a504
VK		 592
593 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
e58c9f70
VK		 594 cid, le32_to_cpu(evt->reason));
595
596 if (cid >= ARRAY_SIZE(wil->sta)) {
597 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
598 return;
599 }
3442a504 600
e58c9f70 601 wil->sta[cid].data_port_open = false;
3442a504
VK		 602 netif_carrier_off(ndev);
603}
604
249a382b
VK		 605static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
606 int len)
607{
608 struct wmi_vring_ba_status_event *evt = d;
3277213f 609 struct vring_tx_data *txdata;
249a382b 610
cbcf5866 611 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
7b05b0ab
VK		 612 evt->ringid,
613 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
cbcf5866
VK		 614 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
615 evt->amsdu ? "+" : "-");
7b05b0ab
VK		 616
617 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
618 wil_err(wil, "invalid ring id %d\n", evt->ringid);
619 return;
b4490f42
VK		 620 }
621
3277213f
VK		 622 if (evt->status != WMI_BA_AGREED) {
623 evt->ba_timeout = 0;
624 evt->agg_wsize = 0;
cbcf5866 625 evt->amsdu = 0;
7b05b0ab
VK		 626 }
627
3277213f 628 txdata = &wil->vring_tx_data[evt->ringid];
ec81b5ad 629
3277213f
VK		 630 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
631 txdata->agg_wsize = evt->agg_wsize;
cbcf5866 632 txdata->agg_amsdu = evt->amsdu;
3a124ed6 633 txdata->addba_in_progress = false;
3277213f 634}
ec81b5ad 635
3277213f
VK		 636static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
637 int len)
638{
639 struct wmi_rcp_addba_req_event *evt = d;
ec81b5ad 640
3277213f
VK		 641 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
642 evt->ba_param_set, evt->ba_timeout,
643 evt->ba_seq_ctrl);
644}
ec81b5ad 645
3277213f
VK		 646static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
647{
648 struct wmi_delba_event *evt = d;
649 u8 cid, tid;
650 u16 reason = __le16_to_cpu(evt->reason);
651 struct wil_sta_info *sta;
652 struct wil_tid_ampdu_rx *r;
653 unsigned long flags;
654
655 parse_cidxtid(evt->cidxtid, &cid, &tid);
656 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
657 cid, tid,
658 evt->from_initiator ? "originator" : "recipient",
659 reason);
660 if (!evt->from_initiator) {
661 int i;
662 /* find Tx vring it belongs to */
663 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
664 if ((wil->vring2cid_tid[i][0] == cid) &&
665 (wil->vring2cid_tid[i][1] == tid)) {
666 struct vring_tx_data *txdata =
667 &wil->vring_tx_data[i];
668
669 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
670 txdata->agg_timeout = 0;
671 txdata->agg_wsize = 0;
3a124ed6 672 txdata->addba_in_progress = false;
3277213f
VK		 673
674 break; /* max. 1 matching ring */
675 }
676 }
677 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
678 wil_err(wil, "DELBA: unable to find Tx vring\n");
679 return;
7b05b0ab 680 }
8c86f757 681
3277213f
VK		 682 sta = &wil->sta[cid];
683
684 spin_lock_irqsave(&sta->tid_rx_lock, flags);
685
686 r = sta->tid_rx[tid];
687 sta->tid_rx[tid] = NULL;
688 wil_tid_ampdu_rx_free(wil, r);
689
690 spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
249a382b
VK		 691}
692
2be7d22f
VK		 693static const struct {
694 int eventid;
695 void (*handler)(struct wil6210_priv *wil, int eventid,
696 void *data, int data_len);
697} wmi_evt_handlers[] = {
698 {WMI_READY_EVENTID, wmi_evt_ready},
699 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
700 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
701 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
702 {WMI_CONNECT_EVENTID, wmi_evt_connect},
703 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 704 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
3442a504
VK		 705 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
706 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
249a382b 707 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
3277213f
VK		 708 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
709 {WMI_DELBA_EVENTID, wmi_evt_delba},
2be7d22f
VK		 710};
711
712/*
713 * Run in IRQ context
714 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
715 * that will be eventually handled by the @wmi_event_worker in the thread
716 * context of thread "wil6210_wmi"
717 */
718void wmi_recv_cmd(struct wil6210_priv *wil)
719{
720 struct wil6210_mbox_ring_desc d_tail;
721 struct wil6210_mbox_hdr hdr;
722 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
723 struct pending_wmi_event *evt;
724 u8 *cmd;
725 void __iomem *src;
726 ulong flags;
a715c7dd 727 unsigned n;
2be7d22f 728
55f7acdd 729 if (!test_bit(wil_status_reset_done, &wil->status)) {
4cf99c93 730 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 731 return;
732 }
733
a715c7dd 734 for (n = 0;; n++) {
2be7d22f 735 u16 len;
95266dc0 736 bool q;
2be7d22f
VK		 737
738 r->head = ioread32(wil->csr + HOST_MBOX +
739 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 740 if (r->tail == r->head)
741 break;
2be7d22f 742
a715c7dd
VK		 743 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
744 r->head, r->tail);
745 /* read cmd descriptor from tail */
2be7d22f
VK		 746 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
747 sizeof(struct wil6210_mbox_ring_desc));
748 if (d_tail.sync == 0) {
749 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 750 break;
2be7d22f
VK		 751 }
752
a715c7dd 753 /* read cmd header from descriptor */
2be7d22f
VK		 754 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
755 wil_err(wil, "Mbox evt at 0x%08x?\n",
756 le32_to_cpu(d_tail.addr));
95266dc0 757 break;
2be7d22f 758 }
2be7d22f 759 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 760 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
761 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
762 hdr.flags);
763
764 /* read cmd buffer from descriptor */
2be7d22f
VK		 765 src = wmi_buffer(wil, d_tail.addr) +
766 sizeof(struct wil6210_mbox_hdr);
767 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
768 event.wmi) + len, 4),
769 GFP_KERNEL);
14f8dc49 770 if (!evt)
95266dc0 771 break;
14f8dc49 772
2be7d22f
VK		 773 evt->event.hdr = hdr;
774 cmd = (void *)&evt->event.wmi;
775 wil_memcpy_fromio_32(cmd, src, len);
776 /* mark entry as empty */
777 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
778 offsetof(struct wil6210_mbox_ring_desc, sync));
779 /* indicate */
2be7d22f
VK		 780 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
781 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
f988b23f
VK		 782 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
783 u16 id = le16_to_cpu(wmi->id);
784 u32 tstamp = le32_to_cpu(wmi->timestamp);
8fe59627 785
f988b23f
VK		 786 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
787 id, wmi->mid, tstamp);
788 trace_wil6210_wmi_event(wmi, &wmi[1],
789 len - sizeof(*wmi));
2be7d22f 790 }
7743882d 791 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 792 &evt->event.hdr, sizeof(hdr) + len, true);
793
794 /* advance tail */
795 r->tail = r->base + ((r->tail - r->base +
796 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
797 iowrite32(r->tail, wil->csr + HOST_MBOX +
798 offsetof(struct wil6210_mbox_ctl, rx.tail));
799
800 /* add to the pending list */
801 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
802 list_add_tail(&evt->list, &wil->pending_wmi_ev);
803 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
95266dc0
VK		 804 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
805 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
2be7d22f 806 }
95266dc0
VK		 807 /* normally, 1 event per IRQ should be processed */
808 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
2be7d22f
VK		 809}
810
811int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
812 u16 reply_id, void *reply, u8 reply_size, int to_msec)
813{
814 int rc;
815 int remain;
816
817 mutex_lock(&wil->wmi_mutex);
818
819 rc = __wmi_send(wil, cmdid, buf, len);
820 if (rc)
821 goto out;
822
823 wil->reply_id = reply_id;
824 wil->reply_buf = reply;
825 wil->reply_size = reply_size;
59502647
DL		 826 remain = wait_for_completion_timeout(&wil->wmi_call,
827 msecs_to_jiffies(to_msec));
2be7d22f
VK		 828 if (0 == remain) {
829 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
830 cmdid, reply_id, to_msec);
831 rc = -ETIME;
832 } else {
7743882d 833 wil_dbg_wmi(wil,
2be7d22f
VK		 834 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
835 cmdid, reply_id,
836 to_msec - jiffies_to_msecs(remain));
837 }
838 wil->reply_id = 0;
839 wil->reply_buf = NULL;
840 wil->reply_size = 0;
841 out:
842 mutex_unlock(&wil->wmi_mutex);
843
844 return rc;
845}
846
847int wmi_echo(struct wil6210_priv *wil)
848{
849 struct wmi_echo_cmd cmd = {
850 .value = cpu_to_le32(0x12345678),
851 };
852
853 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
854 WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
855}
856
857int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
858{
859 struct wmi_set_mac_address_cmd cmd;
860
861 memcpy(cmd.mac, addr, ETH_ALEN);
862
7743882d 863 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 864
865 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
866}
867
b8023177 868int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
2be7d22f 869{
b8023177
VK		 870 int rc;
871
872 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 873 .bcon_interval = cpu_to_le16(bi),
874 .network_type = wmi_nettype,
875 .disable_sec_offload = 1,
adc2d122 876 .channel = chan - 1,
1eb9d1e5 877 .pcp_max_assoc_sta = max_assoc_sta,
2be7d22f 878 };
b8023177
VK		 879 struct {
880 struct wil6210_mbox_hdr_wmi wmi;
881 struct wmi_pcp_started_event evt;
882 } __packed reply;
2be7d22f
VK		 883
884 if (!wil->secure_pcp)
885 cmd.disable_sec = 1;
886
1eb9d1e5
DL		 887 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
888 (cmd.pcp_max_assoc_sta <= 0)) {
889 wil_info(wil,
890 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
891 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
892 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
893 }
894
8b5c7f6c
VK		 895 /*
896 * Processing time may be huge, in case of secure AP it takes about
897 * 3500ms for FW to start AP
898 */
b8023177 899 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 900 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 901 if (rc)
902 return rc;
903
904 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
905 rc = -EINVAL;
906
907 return rc;
908}
909
910int wmi_pcp_stop(struct wil6210_priv *wil)
911{
912 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
913 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 914}
915
916int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
917{
918 struct wmi_set_ssid_cmd cmd = {
919 .ssid_len = cpu_to_le32(ssid_len),
920 };
921
922 if (ssid_len > sizeof(cmd.ssid))
923 return -EINVAL;
924
925 memcpy(cmd.ssid, ssid, ssid_len);
926
927 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
928}
929
930int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
931{
932 int rc;
933 struct {
934 struct wil6210_mbox_hdr_wmi wmi;
935 struct wmi_set_ssid_cmd cmd;
936 } __packed reply;
937 int len; /* reply.cmd.ssid_len in CPU order */
938
939 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
940 &reply, sizeof(reply), 20);
941 if (rc)
942 return rc;
943
944 len = le32_to_cpu(reply.cmd.ssid_len);
945 if (len > sizeof(reply.cmd.ssid))
946 return -EINVAL;
947
948 *ssid_len = len;
949 memcpy(ssid, reply.cmd.ssid, len);
950
951 return 0;
952}
953
954int wmi_set_channel(struct wil6210_priv *wil, int channel)
955{
956 struct wmi_set_pcp_channel_cmd cmd = {
957 .channel = channel - 1,
958 };
959
960 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
961}
962
963int wmi_get_channel(struct wil6210_priv *wil, int *channel)
964{
965 int rc;
966 struct {
967 struct wil6210_mbox_hdr_wmi wmi;
968 struct wmi_set_pcp_channel_cmd cmd;
969 } __packed reply;
970
971 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
972 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
973 if (rc)
974 return rc;
975
976 if (reply.cmd.channel > 3)
977 return -EINVAL;
978
979 *channel = reply.cmd.channel + 1;
980
981 return 0;
982}
983
b8023177
VK		 984int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
985{
986 struct wmi_p2p_cfg_cmd cmd = {
987 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
988 .channel = channel - 1,
989 };
990
991 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
992}
993
2be7d22f
VK		 994int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
995 const void *mac_addr)
996{
997 struct wmi_delete_cipher_key_cmd cmd = {
998 .key_index = key_index,
999 };
1000
1001 if (mac_addr)
1002 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1003
1004 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1005}
1006
1007int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1008 const void *mac_addr, int key_len, const void *key)
1009{
1010 struct wmi_add_cipher_key_cmd cmd = {
1011 .key_index = key_index,
1012 .key_usage = WMI_KEY_USE_PAIRWISE,
1013 .key_len = key_len,
1014 };
1015
1016 if (!key || (key_len > sizeof(cmd.key)))
1017 return -EINVAL;
1018
1019 memcpy(cmd.key, key, key_len);
1020 if (mac_addr)
1021 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1022
1023 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1024}
1025
1026int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1027{
1028 int rc;
1029 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1030 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 1031
14f8dc49 1032 if (!cmd)
2be7d22f 1033 return -ENOMEM;
ac4acdb7
VK		 1034 if (!ie)
1035 ie_len = 0;
2be7d22f
VK		 1036
1037 cmd->mgmt_frm_type = type;
1038 /* BUG: FW API define ieLen as u8. Will fix FW */
1039 cmd->ie_len = cpu_to_le16(ie_len);
1040 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 1041 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f
VK		 1042 kfree(cmd);
1043
1044 return rc;
1045}
1046
1647f12f
VK		 1047/**
1048 * wmi_rxon - turn radio on/off
1049 * @on: turn on if true, off otherwise
1050 *
1051 * Only switch radio. Channel should be set separately.
1052 * No timeout for rxon - radio turned on forever unless some other call
1053 * turns it off
1054 */
1055int wmi_rxon(struct wil6210_priv *wil, bool on)
1056{
1057 int rc;
1058 struct {
1059 struct wil6210_mbox_hdr_wmi wmi;
1060 struct wmi_listen_started_event evt;
1061 } __packed reply;
1062
1063 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1064
1065 if (on) {
1066 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1067 WMI_LISTEN_STARTED_EVENTID,
1068 &reply, sizeof(reply), 100);
1069 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1070 rc = -EINVAL;
1071 } else {
1072 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1073 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1074 }
1075
1076 return rc;
1077}
1078
47e19af9
VK		 1079int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1080{
1081 struct wireless_dev *wdev = wil->wdev;
1082 struct net_device *ndev = wil_to_ndev(wil);
1083 struct wmi_cfg_rx_chain_cmd cmd = {
1084 .action = WMI_RX_CHAIN_ADD,
1085 .rx_sw_ring = {
c44690a1 1086 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
47e19af9
VK		 1087 .ring_mem_base = cpu_to_le64(vring->pa),
1088 .ring_size = cpu_to_le16(vring->size),
1089 },
1090 .mid = 0, /* TODO - what is it? */
1091 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1092 .reorder_type = WMI_RX_SW_REORDER,
47e19af9
VK		 1093 };
1094 struct {
1095 struct wil6210_mbox_hdr_wmi wmi;
1096 struct wmi_cfg_rx_chain_done_event evt;
1097 } __packed evt;
1098 int rc;
1099
1100 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1101 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1102
1103 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1104 if (ch)
1105 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1106 cmd.sniffer_cfg.phy_info_mode =
1107 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1108 cmd.sniffer_cfg.phy_support =
1109 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1110 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
504937d4
KE		 1111 } else {
1112 /* Initialize offload (in non-sniffer mode).
1113 * Linux IP stack always calculates IP checksum
1114 * HW always calculate TCP/UDP checksum
1115 */
1116 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9
VK		 1117 }
1118 /* typical time for secure PCP is 840ms */
1119 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1120 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1121 if (rc)
1122 return rc;
1123
1124 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1125
7743882d 1126 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1127 le32_to_cpu(evt.evt.status), vring->hwtail);
1128
1129 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1130 rc = -EINVAL;
1131
1132 return rc;
1133}
1134
1a2780e0
VK		 1135int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
1136{
1137 int rc;
1138 struct wmi_temp_sense_cmd cmd = {
1139 .measure_marlon_m_en = cpu_to_le32(!!t_m),
1140 .measure_marlon_r_en = cpu_to_le32(!!t_r),
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_m)
1153 *t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
1154 if (t_r)
1155 *t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
1156
1157 return 0;
1158}
1159
4d55a0a1
VK		 1160int 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
3277213f
VK		 1172int 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),
cbcf5866 1178 .amsdu = 0,
3277213f
VK		 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
26a359d9 1187int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
3277213f
VK		 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
26a359d9
VK		 1200int 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
3277213f
VK		 1213int 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
2be7d22f
VK		 1253void wmi_event_flush(struct wil6210_priv *wil)
1254{
1255 struct pending_wmi_event *evt, *t;
1256
7743882d 1257 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 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
1265static 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
1280static 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);
028e1836
VK		 1290
1291 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1292 id, wil->reply_id);
2be7d22f
VK		 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 }
7743882d 1302 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
59502647 1303 complete(&wil->wmi_call);
2be7d22f
VK		 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 */
1322static 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 */
1342void 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
028e1836 1349 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 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 }
028e1836 1355 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1356}
Linux kernel - Deliverables
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