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bb9f8692 ZY |
1 | /* |
2 | * Intel Wireless Multicomm 3200 WiFi driver | |
3 | * | |
4 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * * Neither the name of Intel Corporation nor the names of its | |
17 | * contributors may be used to endorse or promote products derived | |
18 | * from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | * | |
32 | * | |
33 | * Intel Corporation <ilw@linux.intel.com> | |
34 | * Samuel Ortiz <samuel.ortiz@intel.com> | |
35 | * Zhu Yi <yi.zhu@intel.com> | |
36 | * | |
37 | */ | |
38 | ||
39 | #include <linux/kernel.h> | |
40 | #include <linux/netdevice.h> | |
d43c36dc | 41 | #include <linux/sched.h> |
bb9f8692 ZY |
42 | #include <linux/etherdevice.h> |
43 | #include <linux/wireless.h> | |
44 | #include <linux/ieee80211.h> | |
45 | #include <linux/if_arp.h> | |
46 | #include <linux/list.h> | |
47 | #include <net/iw_handler.h> | |
48 | ||
49 | #include "iwm.h" | |
50 | #include "debug.h" | |
51 | #include "hal.h" | |
52 | #include "umac.h" | |
53 | #include "lmac.h" | |
54 | #include "commands.h" | |
55 | #include "rx.h" | |
56 | #include "cfg80211.h" | |
57 | #include "eeprom.h" | |
58 | ||
59 | static int iwm_rx_check_udma_hdr(struct iwm_udma_in_hdr *hdr) | |
60 | { | |
61 | if ((le32_to_cpu(hdr->cmd) == UMAC_PAD_TERMINAL) || | |
62 | (le32_to_cpu(hdr->size) == UMAC_PAD_TERMINAL)) | |
63 | return -EINVAL; | |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 | static inline int iwm_rx_resp_size(struct iwm_udma_in_hdr *hdr) | |
69 | { | |
70 | return ALIGN(le32_to_cpu(hdr->size) + sizeof(struct iwm_udma_in_hdr), | |
71 | 16); | |
72 | } | |
73 | ||
74 | /* | |
75 | * Notification handlers: | |
76 | * | |
77 | * For every possible notification we can receive from the | |
78 | * target, we have a handler. | |
79 | * When we get a target notification, and there is no one | |
80 | * waiting for it, it's just processed through the rx code | |
81 | * path: | |
82 | * | |
83 | * iwm_rx_handle() | |
84 | * -> iwm_rx_handle_umac() | |
85 | * -> iwm_rx_handle_wifi() | |
86 | * -> iwm_rx_handle_resp() | |
87 | * -> iwm_ntf_*() | |
88 | * | |
89 | * OR | |
90 | * | |
91 | * -> iwm_rx_handle_non_wifi() | |
92 | * | |
93 | * If there are processes waiting for this notification, then | |
94 | * iwm_rx_handle_wifi() just wakes those processes up and they | |
95 | * grab the pending notification. | |
96 | */ | |
97 | static int iwm_ntf_error(struct iwm_priv *iwm, u8 *buf, | |
98 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
99 | { | |
100 | struct iwm_umac_notif_error *error; | |
101 | struct iwm_fw_error_hdr *fw_err; | |
102 | ||
103 | error = (struct iwm_umac_notif_error *)buf; | |
104 | fw_err = &error->err; | |
105 | ||
04e715cd SO |
106 | memcpy(iwm->last_fw_err, fw_err, sizeof(struct iwm_fw_error_hdr)); |
107 | ||
bb9f8692 ZY |
108 | IWM_ERR(iwm, "%cMAC FW ERROR:\n", |
109 | (le32_to_cpu(fw_err->category) == UMAC_SYS_ERR_CAT_LMAC) ? 'L' : 'U'); | |
110 | IWM_ERR(iwm, "\tCategory: %d\n", le32_to_cpu(fw_err->category)); | |
111 | IWM_ERR(iwm, "\tStatus: 0x%x\n", le32_to_cpu(fw_err->status)); | |
112 | IWM_ERR(iwm, "\tPC: 0x%x\n", le32_to_cpu(fw_err->pc)); | |
113 | IWM_ERR(iwm, "\tblink1: %d\n", le32_to_cpu(fw_err->blink1)); | |
114 | IWM_ERR(iwm, "\tblink2: %d\n", le32_to_cpu(fw_err->blink2)); | |
115 | IWM_ERR(iwm, "\tilink1: %d\n", le32_to_cpu(fw_err->ilink1)); | |
116 | IWM_ERR(iwm, "\tilink2: %d\n", le32_to_cpu(fw_err->ilink2)); | |
117 | IWM_ERR(iwm, "\tData1: 0x%x\n", le32_to_cpu(fw_err->data1)); | |
118 | IWM_ERR(iwm, "\tData2: 0x%x\n", le32_to_cpu(fw_err->data2)); | |
119 | IWM_ERR(iwm, "\tLine number: %d\n", le32_to_cpu(fw_err->line_num)); | |
120 | IWM_ERR(iwm, "\tUMAC status: 0x%x\n", le32_to_cpu(fw_err->umac_status)); | |
121 | IWM_ERR(iwm, "\tLMAC status: 0x%x\n", le32_to_cpu(fw_err->lmac_status)); | |
122 | IWM_ERR(iwm, "\tSDIO status: 0x%x\n", le32_to_cpu(fw_err->sdio_status)); | |
123 | ||
d210176e SO |
124 | iwm_resetting(iwm); |
125 | ||
bb9f8692 ZY |
126 | return 0; |
127 | } | |
128 | ||
129 | static int iwm_ntf_umac_alive(struct iwm_priv *iwm, u8 *buf, | |
130 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
131 | { | |
132 | struct iwm_umac_notif_alive *alive_resp = | |
133 | (struct iwm_umac_notif_alive *)(buf); | |
134 | u16 status = le16_to_cpu(alive_resp->status); | |
135 | ||
136 | if (status == UMAC_NTFY_ALIVE_STATUS_ERR) { | |
137 | IWM_ERR(iwm, "Receive error UMAC_ALIVE\n"); | |
138 | return -EIO; | |
139 | } | |
140 | ||
141 | iwm_tx_credit_init_pools(iwm, alive_resp); | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
146 | static int iwm_ntf_init_complete(struct iwm_priv *iwm, u8 *buf, | |
147 | unsigned long buf_size, | |
148 | struct iwm_wifi_cmd *cmd) | |
149 | { | |
257862f3 | 150 | struct wiphy *wiphy = iwm_to_wiphy(iwm); |
bb9f8692 ZY |
151 | struct iwm_umac_notif_init_complete *init_complete = |
152 | (struct iwm_umac_notif_init_complete *)(buf); | |
153 | u16 status = le16_to_cpu(init_complete->status); | |
257862f3 | 154 | bool blocked = (status == UMAC_NTFY_INIT_COMPLETE_STATUS_ERR); |
bb9f8692 | 155 | |
257862f3 | 156 | if (blocked) |
bb9f8692 | 157 | IWM_DBG_NTF(iwm, DBG, "Hardware rf kill is on (radio off)\n"); |
257862f3 | 158 | else |
bb9f8692 | 159 | IWM_DBG_NTF(iwm, DBG, "Hardware rf kill is off (radio on)\n"); |
257862f3 ZY |
160 | |
161 | wiphy_rfkill_set_hw_state(wiphy, blocked); | |
bb9f8692 ZY |
162 | |
163 | return 0; | |
164 | } | |
165 | ||
166 | static int iwm_ntf_tx_credit_update(struct iwm_priv *iwm, u8 *buf, | |
167 | unsigned long buf_size, | |
168 | struct iwm_wifi_cmd *cmd) | |
169 | { | |
170 | int pool_nr, total_freed_pages; | |
171 | unsigned long pool_map; | |
172 | int i, id; | |
173 | struct iwm_umac_notif_page_dealloc *dealloc = | |
174 | (struct iwm_umac_notif_page_dealloc *)buf; | |
175 | ||
176 | pool_nr = GET_VAL32(dealloc->changes, UMAC_DEALLOC_NTFY_CHANGES_CNT); | |
177 | pool_map = GET_VAL32(dealloc->changes, UMAC_DEALLOC_NTFY_CHANGES_MSK); | |
178 | ||
179 | IWM_DBG_TX(iwm, DBG, "UMAC dealloc notification: pool nr %d, " | |
180 | "update map 0x%lx\n", pool_nr, pool_map); | |
181 | ||
182 | spin_lock(&iwm->tx_credit.lock); | |
183 | ||
184 | for (i = 0; i < pool_nr; i++) { | |
185 | id = GET_VAL32(dealloc->grp_info[i], | |
186 | UMAC_DEALLOC_NTFY_GROUP_NUM); | |
187 | if (test_bit(id, &pool_map)) { | |
188 | total_freed_pages = GET_VAL32(dealloc->grp_info[i], | |
189 | UMAC_DEALLOC_NTFY_PAGE_CNT); | |
190 | iwm_tx_credit_inc(iwm, id, total_freed_pages); | |
191 | } | |
192 | } | |
193 | ||
194 | spin_unlock(&iwm->tx_credit.lock); | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
199 | static int iwm_ntf_umac_reset(struct iwm_priv *iwm, u8 *buf, | |
200 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
201 | { | |
202 | IWM_DBG_NTF(iwm, DBG, "UMAC RESET done\n"); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static int iwm_ntf_lmac_version(struct iwm_priv *iwm, u8 *buf, | |
208 | unsigned long buf_size, | |
209 | struct iwm_wifi_cmd *cmd) | |
210 | { | |
211 | IWM_DBG_NTF(iwm, INFO, "LMAC Version: %x.%x\n", buf[9], buf[8]); | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
216 | static int iwm_ntf_tx(struct iwm_priv *iwm, u8 *buf, | |
217 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
218 | { | |
219 | struct iwm_lmac_tx_resp *tx_resp; | |
220 | struct iwm_umac_wifi_in_hdr *hdr; | |
221 | ||
222 | tx_resp = (struct iwm_lmac_tx_resp *) | |
223 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
224 | hdr = (struct iwm_umac_wifi_in_hdr *)buf; | |
225 | ||
4fdd81f5 ZY |
226 | IWM_DBG_TX(iwm, DBG, "REPLY_TX, buf size: %lu\n", buf_size); |
227 | ||
228 | IWM_DBG_TX(iwm, DBG, "Seqnum: %d\n", | |
229 | le16_to_cpu(hdr->sw_hdr.cmd.seq_num)); | |
230 | IWM_DBG_TX(iwm, DBG, "\tFrame cnt: %d\n", tx_resp->frame_cnt); | |
231 | IWM_DBG_TX(iwm, DBG, "\tRetry cnt: %d\n", | |
232 | le16_to_cpu(tx_resp->retry_cnt)); | |
233 | IWM_DBG_TX(iwm, DBG, "\tSeq ctl: %d\n", le16_to_cpu(tx_resp->seq_ctl)); | |
234 | IWM_DBG_TX(iwm, DBG, "\tByte cnt: %d\n", | |
235 | le16_to_cpu(tx_resp->byte_cnt)); | |
236 | IWM_DBG_TX(iwm, DBG, "\tStatus: 0x%x\n", le32_to_cpu(tx_resp->status)); | |
bb9f8692 ZY |
237 | |
238 | return 0; | |
239 | } | |
240 | ||
241 | ||
242 | static int iwm_ntf_calib_res(struct iwm_priv *iwm, u8 *buf, | |
243 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
244 | { | |
245 | u8 opcode; | |
246 | u8 *calib_buf; | |
247 | struct iwm_lmac_calib_hdr *hdr = (struct iwm_lmac_calib_hdr *) | |
248 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
249 | ||
250 | opcode = hdr->opcode; | |
251 | ||
252 | BUG_ON(opcode >= CALIBRATION_CMD_NUM || | |
253 | opcode < PHY_CALIBRATE_OPCODES_NUM); | |
254 | ||
255 | IWM_DBG_NTF(iwm, DBG, "Store calibration result for opcode: %d\n", | |
256 | opcode); | |
257 | ||
258 | buf_size -= sizeof(struct iwm_umac_wifi_in_hdr); | |
259 | calib_buf = iwm->calib_res[opcode].buf; | |
260 | ||
261 | if (!calib_buf || (iwm->calib_res[opcode].size < buf_size)) { | |
262 | kfree(calib_buf); | |
263 | calib_buf = kzalloc(buf_size, GFP_KERNEL); | |
264 | if (!calib_buf) { | |
265 | IWM_ERR(iwm, "Memory allocation failed: calib_res\n"); | |
266 | return -ENOMEM; | |
267 | } | |
268 | iwm->calib_res[opcode].buf = calib_buf; | |
269 | iwm->calib_res[opcode].size = buf_size; | |
270 | } | |
271 | ||
272 | memcpy(calib_buf, hdr, buf_size); | |
273 | set_bit(opcode - PHY_CALIBRATE_OPCODES_NUM, &iwm->calib_done_map); | |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
278 | static int iwm_ntf_calib_complete(struct iwm_priv *iwm, u8 *buf, | |
279 | unsigned long buf_size, | |
280 | struct iwm_wifi_cmd *cmd) | |
281 | { | |
282 | IWM_DBG_NTF(iwm, DBG, "Calibration completed\n"); | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
287 | static int iwm_ntf_calib_cfg(struct iwm_priv *iwm, u8 *buf, | |
288 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
289 | { | |
290 | struct iwm_lmac_cal_cfg_resp *cal_resp; | |
291 | ||
292 | cal_resp = (struct iwm_lmac_cal_cfg_resp *) | |
293 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
294 | ||
295 | IWM_DBG_NTF(iwm, DBG, "Calibration CFG command status: %d\n", | |
296 | le32_to_cpu(cal_resp->status)); | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int iwm_ntf_wifi_status(struct iwm_priv *iwm, u8 *buf, | |
302 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
303 | { | |
304 | struct iwm_umac_notif_wifi_status *status = | |
305 | (struct iwm_umac_notif_wifi_status *)buf; | |
306 | ||
307 | iwm->core_enabled |= le16_to_cpu(status->status); | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | static struct iwm_rx_ticket_node * | |
313 | iwm_rx_ticket_node_alloc(struct iwm_priv *iwm, struct iwm_rx_ticket *ticket) | |
314 | { | |
315 | struct iwm_rx_ticket_node *ticket_node; | |
316 | ||
317 | ticket_node = kzalloc(sizeof(struct iwm_rx_ticket_node), GFP_KERNEL); | |
318 | if (!ticket_node) { | |
319 | IWM_ERR(iwm, "Couldn't allocate ticket node\n"); | |
320 | return ERR_PTR(-ENOMEM); | |
321 | } | |
322 | ||
323 | ticket_node->ticket = kzalloc(sizeof(struct iwm_rx_ticket), GFP_KERNEL); | |
324 | if (!ticket_node->ticket) { | |
325 | IWM_ERR(iwm, "Couldn't allocate RX ticket\n"); | |
326 | kfree(ticket_node); | |
327 | return ERR_PTR(-ENOMEM); | |
328 | } | |
329 | ||
330 | memcpy(ticket_node->ticket, ticket, sizeof(struct iwm_rx_ticket)); | |
331 | INIT_LIST_HEAD(&ticket_node->node); | |
332 | ||
333 | return ticket_node; | |
334 | } | |
335 | ||
336 | static void iwm_rx_ticket_node_free(struct iwm_rx_ticket_node *ticket_node) | |
337 | { | |
338 | kfree(ticket_node->ticket); | |
339 | kfree(ticket_node); | |
340 | } | |
341 | ||
342 | static struct iwm_rx_packet *iwm_rx_packet_get(struct iwm_priv *iwm, u16 id) | |
343 | { | |
344 | u8 id_hash = IWM_RX_ID_GET_HASH(id); | |
345 | struct list_head *packet_list; | |
346 | struct iwm_rx_packet *packet, *next; | |
347 | ||
348 | packet_list = &iwm->rx_packets[id_hash]; | |
349 | ||
350 | list_for_each_entry_safe(packet, next, packet_list, node) | |
351 | if (packet->id == id) | |
352 | return packet; | |
353 | ||
354 | return NULL; | |
355 | } | |
356 | ||
357 | static struct iwm_rx_packet *iwm_rx_packet_alloc(struct iwm_priv *iwm, u8 *buf, | |
358 | u32 size, u16 id) | |
359 | { | |
360 | struct iwm_rx_packet *packet; | |
361 | ||
362 | packet = kzalloc(sizeof(struct iwm_rx_packet), GFP_KERNEL); | |
363 | if (!packet) { | |
364 | IWM_ERR(iwm, "Couldn't allocate packet\n"); | |
365 | return ERR_PTR(-ENOMEM); | |
366 | } | |
367 | ||
368 | packet->skb = dev_alloc_skb(size); | |
369 | if (!packet->skb) { | |
370 | IWM_ERR(iwm, "Couldn't allocate packet SKB\n"); | |
371 | kfree(packet); | |
372 | return ERR_PTR(-ENOMEM); | |
373 | } | |
374 | ||
375 | packet->pkt_size = size; | |
376 | ||
377 | skb_put(packet->skb, size); | |
378 | memcpy(packet->skb->data, buf, size); | |
379 | INIT_LIST_HEAD(&packet->node); | |
380 | packet->id = id; | |
381 | ||
382 | return packet; | |
383 | } | |
384 | ||
385 | void iwm_rx_free(struct iwm_priv *iwm) | |
386 | { | |
387 | struct iwm_rx_ticket_node *ticket, *nt; | |
388 | struct iwm_rx_packet *packet, *np; | |
389 | int i; | |
390 | ||
391 | list_for_each_entry_safe(ticket, nt, &iwm->rx_tickets, node) { | |
392 | list_del(&ticket->node); | |
393 | iwm_rx_ticket_node_free(ticket); | |
394 | } | |
395 | ||
396 | for (i = 0; i < IWM_RX_ID_HASH; i++) { | |
397 | list_for_each_entry_safe(packet, np, &iwm->rx_packets[i], | |
398 | node) { | |
399 | list_del(&packet->node); | |
400 | kfree_skb(packet->skb); | |
401 | kfree(packet); | |
402 | } | |
403 | } | |
404 | } | |
405 | ||
406 | static int iwm_ntf_rx_ticket(struct iwm_priv *iwm, u8 *buf, | |
407 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
408 | { | |
409 | struct iwm_umac_notif_rx_ticket *ntf_rx_ticket = | |
410 | (struct iwm_umac_notif_rx_ticket *)buf; | |
411 | struct iwm_rx_ticket *ticket = | |
412 | (struct iwm_rx_ticket *)ntf_rx_ticket->tickets; | |
413 | int i, schedule_rx = 0; | |
414 | ||
415 | for (i = 0; i < ntf_rx_ticket->num_tickets; i++) { | |
416 | struct iwm_rx_ticket_node *ticket_node; | |
417 | ||
418 | switch (le16_to_cpu(ticket->action)) { | |
419 | case IWM_RX_TICKET_RELEASE: | |
420 | case IWM_RX_TICKET_DROP: | |
421 | /* We can push the packet to the stack */ | |
422 | ticket_node = iwm_rx_ticket_node_alloc(iwm, ticket); | |
423 | if (IS_ERR(ticket_node)) | |
424 | return PTR_ERR(ticket_node); | |
425 | ||
69cf6e2d SO |
426 | IWM_DBG_RX(iwm, DBG, "TICKET %s(%d)\n", |
427 | ticket->action == IWM_RX_TICKET_RELEASE ? | |
428 | "RELEASE" : "DROP", | |
4fdd81f5 | 429 | ticket->id); |
bb9f8692 ZY |
430 | list_add_tail(&ticket_node->node, &iwm->rx_tickets); |
431 | ||
432 | /* | |
433 | * We received an Rx ticket, most likely there's | |
434 | * a packet pending for it, it's not worth going | |
435 | * through the packet hash list to double check. | |
436 | * Let's just fire the rx worker.. | |
437 | */ | |
438 | schedule_rx = 1; | |
439 | ||
440 | break; | |
441 | ||
442 | default: | |
443 | IWM_ERR(iwm, "Invalid RX ticket action: 0x%x\n", | |
444 | ticket->action); | |
445 | } | |
446 | ||
447 | ticket++; | |
448 | } | |
449 | ||
450 | if (schedule_rx) | |
451 | queue_work(iwm->rx_wq, &iwm->rx_worker); | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
456 | static int iwm_ntf_rx_packet(struct iwm_priv *iwm, u8 *buf, | |
457 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
458 | { | |
459 | struct iwm_umac_wifi_in_hdr *wifi_hdr; | |
460 | struct iwm_rx_packet *packet; | |
461 | u16 id, buf_offset; | |
462 | u32 packet_size; | |
463 | ||
4fdd81f5 | 464 | IWM_DBG_RX(iwm, DBG, "\n"); |
bb9f8692 ZY |
465 | |
466 | wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf; | |
467 | id = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num); | |
468 | buf_offset = sizeof(struct iwm_umac_wifi_in_hdr); | |
469 | packet_size = buf_size - sizeof(struct iwm_umac_wifi_in_hdr); | |
470 | ||
4fdd81f5 ZY |
471 | IWM_DBG_RX(iwm, DBG, "CMD:0x%x, seqnum: %d, packet size: %d\n", |
472 | wifi_hdr->sw_hdr.cmd.cmd, id, packet_size); | |
bb9f8692 ZY |
473 | IWM_DBG_RX(iwm, DBG, "Packet id: %d\n", id); |
474 | IWM_HEXDUMP(iwm, DBG, RX, "PACKET: ", buf + buf_offset, packet_size); | |
475 | ||
476 | packet = iwm_rx_packet_alloc(iwm, buf + buf_offset, packet_size, id); | |
477 | if (IS_ERR(packet)) | |
478 | return PTR_ERR(packet); | |
479 | ||
480 | list_add_tail(&packet->node, &iwm->rx_packets[IWM_RX_ID_GET_HASH(id)]); | |
481 | ||
482 | /* We might (unlikely) have received the packet _after_ the ticket */ | |
483 | queue_work(iwm->rx_wq, &iwm->rx_worker); | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
488 | /* MLME handlers */ | |
489 | static int iwm_mlme_assoc_start(struct iwm_priv *iwm, u8 *buf, | |
490 | unsigned long buf_size, | |
491 | struct iwm_wifi_cmd *cmd) | |
492 | { | |
493 | struct iwm_umac_notif_assoc_start *start; | |
494 | ||
495 | start = (struct iwm_umac_notif_assoc_start *)buf; | |
496 | ||
bb9f8692 ZY |
497 | IWM_DBG_MLME(iwm, INFO, "Association with %pM Started, reason: %d\n", |
498 | start->bssid, le32_to_cpu(start->roam_reason)); | |
499 | ||
500 | wake_up_interruptible(&iwm->mlme_queue); | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
9829e1b5 SO |
505 | static u8 iwm_is_open_wep_profile(struct iwm_priv *iwm) |
506 | { | |
507 | if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 || | |
508 | iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) && | |
509 | (iwm->umac_profile->sec.ucast_cipher == | |
510 | iwm->umac_profile->sec.mcast_cipher) && | |
511 | (iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_OPEN)) | |
512 | return 1; | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
bb9f8692 ZY |
517 | static int iwm_mlme_assoc_complete(struct iwm_priv *iwm, u8 *buf, |
518 | unsigned long buf_size, | |
519 | struct iwm_wifi_cmd *cmd) | |
520 | { | |
521 | struct iwm_umac_notif_assoc_complete *complete = | |
522 | (struct iwm_umac_notif_assoc_complete *)buf; | |
bb9f8692 ZY |
523 | |
524 | IWM_DBG_MLME(iwm, INFO, "Association with %pM completed, status: %d\n", | |
525 | complete->bssid, complete->status); | |
526 | ||
bb9f8692 ZY |
527 | switch (le32_to_cpu(complete->status)) { |
528 | case UMAC_ASSOC_COMPLETE_SUCCESS: | |
529 | set_bit(IWM_STATUS_ASSOCIATED, &iwm->status); | |
530 | memcpy(iwm->bssid, complete->bssid, ETH_ALEN); | |
531 | iwm->channel = complete->channel; | |
532 | ||
de15fd31 ZY |
533 | /* Internal roaming state, avoid notifying SME. */ |
534 | if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status) | |
535 | && iwm->conf.mode == UMAC_MODE_BSS) { | |
c7436273 | 536 | cancel_delayed_work(&iwm->disconnect); |
de15fd31 ZY |
537 | cfg80211_roamed(iwm_to_ndev(iwm), |
538 | complete->bssid, | |
539 | iwm->req_ie, iwm->req_ie_len, | |
540 | iwm->resp_ie, iwm->resp_ie_len, | |
541 | GFP_KERNEL); | |
542 | break; | |
543 | } | |
544 | ||
bb9f8692 ZY |
545 | iwm_link_on(iwm); |
546 | ||
9c7c0cdd ZY |
547 | if (iwm->conf.mode == UMAC_MODE_IBSS) |
548 | goto ibss; | |
549 | ||
d210176e SO |
550 | if (!test_bit(IWM_STATUS_RESETTING, &iwm->status)) |
551 | cfg80211_connect_result(iwm_to_ndev(iwm), | |
552 | complete->bssid, | |
553 | iwm->req_ie, iwm->req_ie_len, | |
554 | iwm->resp_ie, iwm->resp_ie_len, | |
555 | WLAN_STATUS_SUCCESS, | |
556 | GFP_KERNEL); | |
557 | else | |
558 | cfg80211_roamed(iwm_to_ndev(iwm), | |
9967d46a | 559 | complete->bssid, |
b68518fc ZY |
560 | iwm->req_ie, iwm->req_ie_len, |
561 | iwm->resp_ie, iwm->resp_ie_len, | |
d210176e | 562 | GFP_KERNEL); |
bb9f8692 ZY |
563 | break; |
564 | case UMAC_ASSOC_COMPLETE_FAILURE: | |
565 | clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status); | |
566 | memset(iwm->bssid, 0, ETH_ALEN); | |
567 | iwm->channel = 0; | |
568 | ||
de15fd31 ZY |
569 | /* Internal roaming state, avoid notifying SME. */ |
570 | if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status) | |
c7436273 ZY |
571 | && iwm->conf.mode == UMAC_MODE_BSS) { |
572 | cancel_delayed_work(&iwm->disconnect); | |
de15fd31 | 573 | break; |
c7436273 | 574 | } |
de15fd31 | 575 | |
bb9f8692 | 576 | iwm_link_off(iwm); |
9967d46a | 577 | |
9c7c0cdd ZY |
578 | if (iwm->conf.mode == UMAC_MODE_IBSS) |
579 | goto ibss; | |
580 | ||
d210176e | 581 | if (!test_bit(IWM_STATUS_RESETTING, &iwm->status)) |
9829e1b5 SO |
582 | if (!iwm_is_open_wep_profile(iwm)) { |
583 | cfg80211_connect_result(iwm_to_ndev(iwm), | |
584 | complete->bssid, | |
585 | NULL, 0, NULL, 0, | |
586 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
587 | GFP_KERNEL); | |
588 | } else { | |
589 | /* Let's try shared WEP auth */ | |
590 | IWM_ERR(iwm, "Trying WEP shared auth\n"); | |
591 | schedule_work(&iwm->auth_retry_worker); | |
592 | } | |
d210176e SO |
593 | else |
594 | cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, | |
595 | GFP_KERNEL); | |
de15fd31 | 596 | break; |
bb9f8692 ZY |
597 | default: |
598 | break; | |
599 | } | |
600 | ||
d210176e | 601 | clear_bit(IWM_STATUS_RESETTING, &iwm->status); |
9c7c0cdd | 602 | return 0; |
bb9f8692 | 603 | |
9c7c0cdd ZY |
604 | ibss: |
605 | cfg80211_ibss_joined(iwm_to_ndev(iwm), iwm->bssid, GFP_KERNEL); | |
d210176e | 606 | clear_bit(IWM_STATUS_RESETTING, &iwm->status); |
bb9f8692 ZY |
607 | return 0; |
608 | } | |
609 | ||
610 | static int iwm_mlme_profile_invalidate(struct iwm_priv *iwm, u8 *buf, | |
611 | unsigned long buf_size, | |
612 | struct iwm_wifi_cmd *cmd) | |
613 | { | |
614 | struct iwm_umac_notif_profile_invalidate *invalid; | |
c7436273 | 615 | u32 reason; |
bb9f8692 ZY |
616 | |
617 | invalid = (struct iwm_umac_notif_profile_invalidate *)buf; | |
c7436273 ZY |
618 | reason = le32_to_cpu(invalid->reason); |
619 | ||
620 | IWM_DBG_MLME(iwm, INFO, "Profile Invalidated. Reason: %d\n", reason); | |
bb9f8692 | 621 | |
c7436273 ZY |
622 | if (reason != UMAC_PROFILE_INVALID_REQUEST && |
623 | test_bit(IWM_STATUS_SME_CONNECTING, &iwm->status)) | |
624 | cfg80211_connect_result(iwm_to_ndev(iwm), NULL, NULL, 0, NULL, | |
625 | 0, WLAN_STATUS_UNSPECIFIED_FAILURE, | |
626 | GFP_KERNEL); | |
bb9f8692 | 627 | |
de15fd31 | 628 | clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status); |
bb9f8692 ZY |
629 | clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status); |
630 | ||
631 | iwm->umac_profile_active = 0; | |
632 | memset(iwm->bssid, 0, ETH_ALEN); | |
633 | iwm->channel = 0; | |
634 | ||
635 | iwm_link_off(iwm); | |
636 | ||
637 | wake_up_interruptible(&iwm->mlme_queue); | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
c7436273 ZY |
642 | #define IWM_DISCONNECT_INTERVAL (5 * HZ) |
643 | ||
644 | static int iwm_mlme_connection_terminated(struct iwm_priv *iwm, u8 *buf, | |
645 | unsigned long buf_size, | |
646 | struct iwm_wifi_cmd *cmd) | |
647 | { | |
648 | IWM_DBG_MLME(iwm, DBG, "Connection terminated\n"); | |
649 | ||
650 | schedule_delayed_work(&iwm->disconnect, IWM_DISCONNECT_INTERVAL); | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
bb9f8692 ZY |
655 | static int iwm_mlme_scan_complete(struct iwm_priv *iwm, u8 *buf, |
656 | unsigned long buf_size, | |
657 | struct iwm_wifi_cmd *cmd) | |
658 | { | |
659 | int ret; | |
660 | struct iwm_umac_notif_scan_complete *scan_complete = | |
661 | (struct iwm_umac_notif_scan_complete *)buf; | |
662 | u32 result = le32_to_cpu(scan_complete->result); | |
663 | ||
664 | IWM_DBG_MLME(iwm, INFO, "type:0x%x result:0x%x seq:%d\n", | |
665 | le32_to_cpu(scan_complete->type), | |
666 | le32_to_cpu(scan_complete->result), | |
667 | scan_complete->seq_num); | |
668 | ||
669 | if (!test_and_clear_bit(IWM_STATUS_SCANNING, &iwm->status)) { | |
670 | IWM_ERR(iwm, "Scan complete while device not scanning\n"); | |
671 | return -EIO; | |
672 | } | |
673 | if (!iwm->scan_request) | |
674 | return 0; | |
675 | ||
676 | ret = iwm_cfg80211_inform_bss(iwm); | |
677 | ||
678 | cfg80211_scan_done(iwm->scan_request, | |
679 | (result & UMAC_SCAN_RESULT_ABORTED) ? 1 : !!ret); | |
680 | iwm->scan_request = NULL; | |
681 | ||
682 | return ret; | |
683 | } | |
684 | ||
685 | static int iwm_mlme_update_sta_table(struct iwm_priv *iwm, u8 *buf, | |
686 | unsigned long buf_size, | |
687 | struct iwm_wifi_cmd *cmd) | |
688 | { | |
689 | struct iwm_umac_notif_sta_info *umac_sta = | |
690 | (struct iwm_umac_notif_sta_info *)buf; | |
691 | struct iwm_sta_info *sta; | |
692 | int i; | |
693 | ||
694 | switch (le32_to_cpu(umac_sta->opcode)) { | |
695 | case UMAC_OPCODE_ADD_MODIFY: | |
696 | sta = &iwm->sta_table[GET_VAL8(umac_sta->sta_id, LMAC_STA_ID)]; | |
697 | ||
698 | IWM_DBG_MLME(iwm, INFO, "%s STA: ID = %d, Color = %d, " | |
699 | "addr = %pM, qos = %d\n", | |
700 | sta->valid ? "Modify" : "Add", | |
701 | GET_VAL8(umac_sta->sta_id, LMAC_STA_ID), | |
702 | GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR), | |
703 | umac_sta->mac_addr, | |
704 | umac_sta->flags & UMAC_STA_FLAG_QOS); | |
705 | ||
706 | sta->valid = 1; | |
707 | sta->qos = umac_sta->flags & UMAC_STA_FLAG_QOS; | |
708 | sta->color = GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR); | |
709 | memcpy(sta->addr, umac_sta->mac_addr, ETH_ALEN); | |
710 | break; | |
711 | case UMAC_OPCODE_REMOVE: | |
712 | IWM_DBG_MLME(iwm, INFO, "Remove STA: ID = %d, Color = %d, " | |
713 | "addr = %pM\n", | |
714 | GET_VAL8(umac_sta->sta_id, LMAC_STA_ID), | |
715 | GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR), | |
716 | umac_sta->mac_addr); | |
717 | ||
718 | sta = &iwm->sta_table[GET_VAL8(umac_sta->sta_id, LMAC_STA_ID)]; | |
719 | ||
720 | if (!memcmp(sta->addr, umac_sta->mac_addr, ETH_ALEN)) | |
721 | sta->valid = 0; | |
722 | ||
723 | break; | |
724 | case UMAC_OPCODE_CLEAR_ALL: | |
725 | for (i = 0; i < IWM_STA_TABLE_NUM; i++) | |
726 | iwm->sta_table[i].valid = 0; | |
727 | ||
728 | break; | |
729 | default: | |
730 | break; | |
731 | } | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
b8fcf590 ZY |
736 | static int iwm_mlme_medium_lost(struct iwm_priv *iwm, u8 *buf, |
737 | unsigned long buf_size, | |
738 | struct iwm_wifi_cmd *cmd) | |
739 | { | |
740 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
741 | ||
742 | IWM_DBG_NTF(iwm, DBG, "WiFi/WiMax coexistence radio is OFF\n"); | |
743 | ||
744 | wiphy_rfkill_set_hw_state(wiphy, true); | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
bb9f8692 ZY |
749 | static int iwm_mlme_update_bss_table(struct iwm_priv *iwm, u8 *buf, |
750 | unsigned long buf_size, | |
751 | struct iwm_wifi_cmd *cmd) | |
752 | { | |
753 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
754 | struct ieee80211_mgmt *mgmt; | |
755 | struct iwm_umac_notif_bss_info *umac_bss = | |
756 | (struct iwm_umac_notif_bss_info *)buf; | |
757 | struct ieee80211_channel *channel; | |
758 | struct ieee80211_supported_band *band; | |
759 | struct iwm_bss_info *bss, *next; | |
760 | s32 signal; | |
761 | int freq; | |
762 | u16 frame_len = le16_to_cpu(umac_bss->frame_len); | |
763 | size_t bss_len = sizeof(struct iwm_umac_notif_bss_info) + frame_len; | |
764 | ||
765 | mgmt = (struct ieee80211_mgmt *)(umac_bss->frame_buf); | |
766 | ||
767 | IWM_DBG_MLME(iwm, DBG, "New BSS info entry: %pM\n", mgmt->bssid); | |
768 | IWM_DBG_MLME(iwm, DBG, "\tType: 0x%x\n", le32_to_cpu(umac_bss->type)); | |
769 | IWM_DBG_MLME(iwm, DBG, "\tTimestamp: %d\n", | |
770 | le32_to_cpu(umac_bss->timestamp)); | |
771 | IWM_DBG_MLME(iwm, DBG, "\tTable Index: %d\n", | |
772 | le16_to_cpu(umac_bss->table_idx)); | |
773 | IWM_DBG_MLME(iwm, DBG, "\tBand: %d\n", umac_bss->band); | |
774 | IWM_DBG_MLME(iwm, DBG, "\tChannel: %d\n", umac_bss->channel); | |
775 | IWM_DBG_MLME(iwm, DBG, "\tRSSI: %d\n", umac_bss->rssi); | |
776 | IWM_DBG_MLME(iwm, DBG, "\tFrame Length: %d\n", frame_len); | |
777 | ||
778 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) | |
779 | if (bss->bss->table_idx == umac_bss->table_idx) | |
780 | break; | |
781 | ||
782 | if (&bss->node != &iwm->bss_list) { | |
783 | /* Remove the old BSS entry, we will add it back later. */ | |
784 | list_del(&bss->node); | |
785 | kfree(bss->bss); | |
786 | } else { | |
787 | /* New BSS entry */ | |
788 | ||
789 | bss = kzalloc(sizeof(struct iwm_bss_info), GFP_KERNEL); | |
790 | if (!bss) { | |
791 | IWM_ERR(iwm, "Couldn't allocate bss_info\n"); | |
792 | return -ENOMEM; | |
793 | } | |
794 | } | |
795 | ||
796 | bss->bss = kzalloc(bss_len, GFP_KERNEL); | |
797 | if (!bss) { | |
798 | kfree(bss); | |
799 | IWM_ERR(iwm, "Couldn't allocate bss\n"); | |
800 | return -ENOMEM; | |
801 | } | |
802 | ||
803 | INIT_LIST_HEAD(&bss->node); | |
804 | memcpy(bss->bss, umac_bss, bss_len); | |
805 | ||
806 | if (umac_bss->band == UMAC_BAND_2GHZ) | |
807 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
808 | else if (umac_bss->band == UMAC_BAND_5GHZ) | |
809 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
810 | else { | |
811 | IWM_ERR(iwm, "Invalid band: %d\n", umac_bss->band); | |
812 | goto err; | |
813 | } | |
814 | ||
815 | freq = ieee80211_channel_to_frequency(umac_bss->channel); | |
816 | channel = ieee80211_get_channel(wiphy, freq); | |
817 | signal = umac_bss->rssi * 100; | |
818 | ||
819 | bss->cfg_bss = cfg80211_inform_bss_frame(wiphy, channel, | |
820 | mgmt, frame_len, | |
821 | signal, GFP_KERNEL); | |
822 | if (!bss->cfg_bss) | |
823 | goto err; | |
824 | ||
825 | list_add_tail(&bss->node, &iwm->bss_list); | |
826 | ||
827 | return 0; | |
828 | err: | |
829 | kfree(bss->bss); | |
830 | kfree(bss); | |
831 | ||
832 | return -EINVAL; | |
833 | } | |
834 | ||
835 | static int iwm_mlme_remove_bss(struct iwm_priv *iwm, u8 *buf, | |
836 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
837 | { | |
838 | struct iwm_umac_notif_bss_removed *bss_rm = | |
839 | (struct iwm_umac_notif_bss_removed *)buf; | |
840 | struct iwm_bss_info *bss, *next; | |
841 | u16 table_idx; | |
842 | int i; | |
843 | ||
844 | for (i = 0; i < le32_to_cpu(bss_rm->count); i++) { | |
845 | table_idx = (le16_to_cpu(bss_rm->entries[i]) | |
846 | & IWM_BSS_REMOVE_INDEX_MSK); | |
847 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) | |
848 | if (bss->bss->table_idx == cpu_to_le16(table_idx)) { | |
849 | struct ieee80211_mgmt *mgmt; | |
850 | ||
851 | mgmt = (struct ieee80211_mgmt *) | |
852 | (bss->bss->frame_buf); | |
853 | IWM_DBG_MLME(iwm, ERR, | |
854 | "BSS removed: %pM\n", | |
855 | mgmt->bssid); | |
856 | list_del(&bss->node); | |
857 | kfree(bss->bss); | |
858 | kfree(bss); | |
859 | } | |
860 | } | |
861 | ||
862 | return 0; | |
863 | } | |
864 | ||
865 | static int iwm_mlme_mgt_frame(struct iwm_priv *iwm, u8 *buf, | |
866 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
867 | { | |
868 | struct iwm_umac_notif_mgt_frame *mgt_frame = | |
b68518fc | 869 | (struct iwm_umac_notif_mgt_frame *)buf; |
bb9f8692 ZY |
870 | struct ieee80211_mgmt *mgt = (struct ieee80211_mgmt *)mgt_frame->frame; |
871 | u8 *ie; | |
bb9f8692 ZY |
872 | |
873 | IWM_HEXDUMP(iwm, DBG, MLME, "MGT: ", mgt_frame->frame, | |
874 | le16_to_cpu(mgt_frame->len)); | |
875 | ||
876 | if (ieee80211_is_assoc_req(mgt->frame_control)) { | |
877 | ie = mgt->u.assoc_req.variable;; | |
b68518fc ZY |
878 | iwm->req_ie_len = |
879 | le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt); | |
880 | kfree(iwm->req_ie); | |
881 | iwm->req_ie = kmemdup(mgt->u.assoc_req.variable, | |
882 | iwm->req_ie_len, GFP_KERNEL); | |
bb9f8692 ZY |
883 | } else if (ieee80211_is_reassoc_req(mgt->frame_control)) { |
884 | ie = mgt->u.reassoc_req.variable;; | |
b68518fc ZY |
885 | iwm->req_ie_len = |
886 | le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt); | |
887 | kfree(iwm->req_ie); | |
888 | iwm->req_ie = kmemdup(mgt->u.reassoc_req.variable, | |
889 | iwm->req_ie_len, GFP_KERNEL); | |
bb9f8692 ZY |
890 | } else if (ieee80211_is_assoc_resp(mgt->frame_control)) { |
891 | ie = mgt->u.assoc_resp.variable;; | |
b68518fc ZY |
892 | iwm->resp_ie_len = |
893 | le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt); | |
894 | kfree(iwm->resp_ie); | |
895 | iwm->resp_ie = kmemdup(mgt->u.assoc_resp.variable, | |
896 | iwm->resp_ie_len, GFP_KERNEL); | |
bb9f8692 ZY |
897 | } else if (ieee80211_is_reassoc_resp(mgt->frame_control)) { |
898 | ie = mgt->u.reassoc_resp.variable;; | |
b68518fc ZY |
899 | iwm->resp_ie_len = |
900 | le16_to_cpu(mgt_frame->len) - (ie - (u8 *)mgt); | |
901 | kfree(iwm->resp_ie); | |
902 | iwm->resp_ie = kmemdup(mgt->u.reassoc_resp.variable, | |
903 | iwm->resp_ie_len, GFP_KERNEL); | |
bb9f8692 | 904 | } else { |
de15fd31 | 905 | IWM_ERR(iwm, "Unsupported management frame: 0x%x", |
31452420 | 906 | le16_to_cpu(mgt->frame_control)); |
bb9f8692 ZY |
907 | return 0; |
908 | } | |
909 | ||
bb9f8692 ZY |
910 | return 0; |
911 | } | |
912 | ||
913 | static int iwm_ntf_mlme(struct iwm_priv *iwm, u8 *buf, | |
914 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
915 | { | |
916 | struct iwm_umac_notif_wifi_if *notif = | |
917 | (struct iwm_umac_notif_wifi_if *)buf; | |
918 | ||
919 | switch (notif->status) { | |
920 | case WIFI_IF_NTFY_ASSOC_START: | |
921 | return iwm_mlme_assoc_start(iwm, buf, buf_size, cmd); | |
922 | case WIFI_IF_NTFY_ASSOC_COMPLETE: | |
923 | return iwm_mlme_assoc_complete(iwm, buf, buf_size, cmd); | |
924 | case WIFI_IF_NTFY_PROFILE_INVALIDATE_COMPLETE: | |
925 | return iwm_mlme_profile_invalidate(iwm, buf, buf_size, cmd); | |
926 | case WIFI_IF_NTFY_CONNECTION_TERMINATED: | |
c7436273 | 927 | return iwm_mlme_connection_terminated(iwm, buf, buf_size, cmd); |
bb9f8692 ZY |
928 | case WIFI_IF_NTFY_SCAN_COMPLETE: |
929 | return iwm_mlme_scan_complete(iwm, buf, buf_size, cmd); | |
930 | case WIFI_IF_NTFY_STA_TABLE_CHANGE: | |
931 | return iwm_mlme_update_sta_table(iwm, buf, buf_size, cmd); | |
932 | case WIFI_IF_NTFY_EXTENDED_IE_REQUIRED: | |
933 | IWM_DBG_MLME(iwm, DBG, "Extended IE required\n"); | |
934 | break; | |
b8fcf590 ZY |
935 | case WIFI_IF_NTFY_RADIO_PREEMPTION: |
936 | return iwm_mlme_medium_lost(iwm, buf, buf_size, cmd); | |
bb9f8692 ZY |
937 | case WIFI_IF_NTFY_BSS_TRK_TABLE_CHANGED: |
938 | return iwm_mlme_update_bss_table(iwm, buf, buf_size, cmd); | |
939 | case WIFI_IF_NTFY_BSS_TRK_ENTRIES_REMOVED: | |
940 | return iwm_mlme_remove_bss(iwm, buf, buf_size, cmd); | |
941 | break; | |
942 | case WIFI_IF_NTFY_MGMT_FRAME: | |
943 | return iwm_mlme_mgt_frame(iwm, buf, buf_size, cmd); | |
944 | case WIFI_DBG_IF_NTFY_SCAN_SUPER_JOB_START: | |
945 | case WIFI_DBG_IF_NTFY_SCAN_SUPER_JOB_COMPLETE: | |
946 | case WIFI_DBG_IF_NTFY_SCAN_CHANNEL_START: | |
947 | case WIFI_DBG_IF_NTFY_SCAN_CHANNEL_RESULT: | |
948 | case WIFI_DBG_IF_NTFY_SCAN_MINI_JOB_START: | |
949 | case WIFI_DBG_IF_NTFY_SCAN_MINI_JOB_COMPLETE: | |
950 | case WIFI_DBG_IF_NTFY_CNCT_ATC_START: | |
951 | case WIFI_DBG_IF_NTFY_COEX_NOTIFICATION: | |
952 | case WIFI_DBG_IF_NTFY_COEX_HANDLE_ENVELOP: | |
953 | case WIFI_DBG_IF_NTFY_COEX_HANDLE_RELEASE_ENVELOP: | |
954 | IWM_DBG_MLME(iwm, DBG, "MLME debug notification: 0x%x\n", | |
955 | notif->status); | |
956 | break; | |
957 | default: | |
958 | IWM_ERR(iwm, "Unhandled notification: 0x%x\n", notif->status); | |
959 | break; | |
960 | } | |
961 | ||
962 | return 0; | |
963 | } | |
964 | ||
965 | #define IWM_STATS_UPDATE_INTERVAL (2 * HZ) | |
966 | ||
967 | static int iwm_ntf_statistics(struct iwm_priv *iwm, u8 *buf, | |
968 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
969 | { | |
970 | struct iwm_umac_notif_stats *stats = (struct iwm_umac_notif_stats *)buf; | |
971 | struct iw_statistics *wstats = &iwm->wstats; | |
972 | u16 max_rate = 0; | |
973 | int i; | |
974 | ||
975 | IWM_DBG_MLME(iwm, DBG, "Statistics notification received\n"); | |
976 | ||
977 | if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) { | |
978 | for (i = 0; i < UMAC_NTF_RATE_SAMPLE_NR; i++) { | |
979 | max_rate = max_t(u16, max_rate, | |
980 | max(le16_to_cpu(stats->tx_rate[i]), | |
981 | le16_to_cpu(stats->rx_rate[i]))); | |
982 | } | |
983 | /* UMAC passes rate info multiplies by 2 */ | |
984 | iwm->rate = max_rate >> 1; | |
985 | } | |
257862f3 | 986 | iwm->txpower = le32_to_cpu(stats->tx_power); |
bb9f8692 ZY |
987 | |
988 | wstats->status = 0; | |
989 | ||
990 | wstats->discard.nwid = le32_to_cpu(stats->rx_drop_other_bssid); | |
991 | wstats->discard.code = le32_to_cpu(stats->rx_drop_decode); | |
992 | wstats->discard.fragment = le32_to_cpu(stats->rx_drop_reassembly); | |
993 | wstats->discard.retries = le32_to_cpu(stats->tx_drop_max_retry); | |
994 | ||
995 | wstats->miss.beacon = le32_to_cpu(stats->missed_beacons); | |
996 | ||
997 | /* according to cfg80211 */ | |
998 | if (stats->rssi_dbm < -110) | |
999 | wstats->qual.qual = 0; | |
1000 | else if (stats->rssi_dbm > -40) | |
1001 | wstats->qual.qual = 70; | |
1002 | else | |
1003 | wstats->qual.qual = stats->rssi_dbm + 110; | |
1004 | ||
1005 | wstats->qual.level = stats->rssi_dbm; | |
1006 | wstats->qual.noise = stats->noise_dbm; | |
1007 | wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; | |
1008 | ||
1009 | schedule_delayed_work(&iwm->stats_request, IWM_STATS_UPDATE_INTERVAL); | |
1010 | ||
1011 | mod_timer(&iwm->watchdog, round_jiffies(jiffies + IWM_WATCHDOG_PERIOD)); | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static int iwm_ntf_eeprom_proxy(struct iwm_priv *iwm, u8 *buf, | |
1017 | unsigned long buf_size, | |
1018 | struct iwm_wifi_cmd *cmd) | |
1019 | { | |
1020 | struct iwm_umac_cmd_eeprom_proxy *eeprom_proxy = | |
1021 | (struct iwm_umac_cmd_eeprom_proxy *) | |
1022 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
1023 | struct iwm_umac_cmd_eeprom_proxy_hdr *hdr = &eeprom_proxy->hdr; | |
1024 | u32 hdr_offset = le32_to_cpu(hdr->offset); | |
1025 | u32 hdr_len = le32_to_cpu(hdr->len); | |
1026 | u32 hdr_type = le32_to_cpu(hdr->type); | |
1027 | ||
1028 | IWM_DBG_NTF(iwm, DBG, "type: 0x%x, len: %d, offset: 0x%x\n", | |
1029 | hdr_type, hdr_len, hdr_offset); | |
1030 | ||
1031 | if ((hdr_offset + hdr_len) > IWM_EEPROM_LEN) | |
1032 | return -EINVAL; | |
1033 | ||
bb9f8692 ZY |
1034 | switch (hdr_type) { |
1035 | case IWM_UMAC_CMD_EEPROM_TYPE_READ: | |
1036 | memcpy(iwm->eeprom + hdr_offset, eeprom_proxy->buf, hdr_len); | |
1037 | break; | |
1038 | case IWM_UMAC_CMD_EEPROM_TYPE_WRITE: | |
1039 | default: | |
1040 | return -ENOTSUPP; | |
1041 | } | |
1042 | ||
1043 | return 0; | |
1044 | } | |
1045 | ||
1046 | static int iwm_ntf_channel_info_list(struct iwm_priv *iwm, u8 *buf, | |
1047 | unsigned long buf_size, | |
1048 | struct iwm_wifi_cmd *cmd) | |
1049 | { | |
1050 | struct iwm_umac_cmd_get_channel_list *ch_list = | |
1051 | (struct iwm_umac_cmd_get_channel_list *) | |
1052 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
1053 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
1054 | struct ieee80211_supported_band *band; | |
1055 | int i; | |
1056 | ||
1057 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
1058 | ||
1059 | for (i = 0; i < band->n_channels; i++) { | |
1060 | unsigned long ch_mask_0 = | |
1061 | le32_to_cpu(ch_list->ch[0].channels_mask); | |
1062 | unsigned long ch_mask_2 = | |
1063 | le32_to_cpu(ch_list->ch[2].channels_mask); | |
1064 | ||
1065 | if (!test_bit(i, &ch_mask_0)) | |
1066 | band->channels[i].flags |= IEEE80211_CHAN_DISABLED; | |
1067 | ||
1068 | if (!test_bit(i, &ch_mask_2)) | |
1069 | band->channels[i].flags |= IEEE80211_CHAN_NO_IBSS; | |
1070 | } | |
1071 | ||
1072 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
1073 | ||
1074 | for (i = 0; i < min(band->n_channels, 32); i++) { | |
1075 | unsigned long ch_mask_1 = | |
1076 | le32_to_cpu(ch_list->ch[1].channels_mask); | |
1077 | unsigned long ch_mask_3 = | |
1078 | le32_to_cpu(ch_list->ch[3].channels_mask); | |
1079 | ||
1080 | if (!test_bit(i, &ch_mask_1)) | |
1081 | band->channels[i].flags |= IEEE80211_CHAN_DISABLED; | |
1082 | ||
1083 | if (!test_bit(i, &ch_mask_3)) | |
1084 | band->channels[i].flags |= IEEE80211_CHAN_NO_IBSS; | |
1085 | } | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
a7af530d SO |
1090 | static int iwm_ntf_stop_resume_tx(struct iwm_priv *iwm, u8 *buf, |
1091 | unsigned long buf_size, | |
1092 | struct iwm_wifi_cmd *cmd) | |
1093 | { | |
1094 | struct iwm_umac_notif_stop_resume_tx *stp_res_tx = | |
1095 | (struct iwm_umac_notif_stop_resume_tx *)buf; | |
1096 | struct iwm_sta_info *sta_info; | |
1097 | struct iwm_tid_info *tid_info; | |
1098 | u8 sta_id = STA_ID_N_COLOR_ID(stp_res_tx->sta_id); | |
1099 | u16 tid_msk = le16_to_cpu(stp_res_tx->stop_resume_tid_msk); | |
1100 | int bit, ret = 0; | |
1101 | bool stop = false; | |
1102 | ||
1103 | IWM_DBG_NTF(iwm, DBG, "stop/resume notification:\n" | |
1104 | "\tflags: 0x%x\n" | |
1105 | "\tSTA id: %d\n" | |
1106 | "\tTID bitmask: 0x%x\n", | |
1107 | stp_res_tx->flags, stp_res_tx->sta_id, | |
1108 | stp_res_tx->stop_resume_tid_msk); | |
1109 | ||
1110 | if (stp_res_tx->flags & UMAC_STOP_TX_FLAG) | |
1111 | stop = true; | |
1112 | ||
1113 | sta_info = &iwm->sta_table[sta_id]; | |
1114 | if (!sta_info->valid) { | |
1115 | IWM_ERR(iwm, "Stoping an invalid STA: %d %d\n", | |
1116 | sta_id, stp_res_tx->sta_id); | |
1117 | return -EINVAL; | |
1118 | } | |
1119 | ||
1120 | for_each_bit(bit, (unsigned long *)&tid_msk, IWM_UMAC_TID_NR) { | |
1121 | tid_info = &sta_info->tid_info[bit]; | |
1122 | ||
1123 | mutex_lock(&tid_info->mutex); | |
1124 | tid_info->stopped = stop; | |
1125 | mutex_unlock(&tid_info->mutex); | |
1126 | ||
1127 | if (!stop) { | |
1128 | struct iwm_tx_queue *txq; | |
8585c2b8 | 1129 | int queue = iwm_tid_to_queue(bit); |
a7af530d SO |
1130 | |
1131 | if (queue < 0) | |
1132 | continue; | |
1133 | ||
1134 | txq = &iwm->txq[queue]; | |
1135 | /* | |
1136 | * If we resume, we have to move our SKBs | |
1137 | * back to the tx queue and queue some work. | |
1138 | */ | |
1139 | spin_lock_bh(&txq->lock); | |
1140 | skb_queue_splice_init(&txq->queue, &txq->stopped_queue); | |
1141 | spin_unlock_bh(&txq->lock); | |
1142 | ||
1143 | queue_work(txq->wq, &txq->worker); | |
1144 | } | |
1145 | ||
1146 | } | |
1147 | ||
1148 | /* We send an ACK only for the stop case */ | |
1149 | if (stop) | |
1150 | ret = iwm_send_umac_stop_resume_tx(iwm, stp_res_tx); | |
1151 | ||
1152 | return ret; | |
1153 | } | |
1154 | ||
bb9f8692 ZY |
1155 | static int iwm_ntf_wifi_if_wrapper(struct iwm_priv *iwm, u8 *buf, |
1156 | unsigned long buf_size, | |
1157 | struct iwm_wifi_cmd *cmd) | |
1158 | { | |
708567e0 SO |
1159 | struct iwm_umac_wifi_if *hdr; |
1160 | ||
1161 | if (cmd == NULL) { | |
1162 | IWM_ERR(iwm, "Couldn't find expected wifi command\n"); | |
1163 | return -EINVAL; | |
1164 | } | |
1165 | ||
1166 | hdr = (struct iwm_umac_wifi_if *)cmd->buf.payload; | |
bb9f8692 ZY |
1167 | |
1168 | IWM_DBG_NTF(iwm, DBG, "WIFI_IF_WRAPPER cmd is delivered to UMAC: " | |
a70742f1 SO |
1169 | "oid is 0x%x\n", hdr->oid); |
1170 | ||
1171 | if (hdr->oid <= WIFI_IF_NTFY_MAX) { | |
1172 | set_bit(hdr->oid, &iwm->wifi_ntfy[0]); | |
1173 | wake_up_interruptible(&iwm->wifi_ntfy_queue); | |
1174 | } else | |
1175 | return -EINVAL; | |
bb9f8692 ZY |
1176 | |
1177 | switch (hdr->oid) { | |
1178 | case UMAC_WIFI_IF_CMD_SET_PROFILE: | |
1179 | iwm->umac_profile_active = 1; | |
bb9f8692 ZY |
1180 | break; |
1181 | default: | |
1182 | break; | |
1183 | } | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
e85498b2 | 1188 | #define CT_KILL_DELAY (30 * HZ) |
bb9f8692 ZY |
1189 | static int iwm_ntf_card_state(struct iwm_priv *iwm, u8 *buf, |
1190 | unsigned long buf_size, struct iwm_wifi_cmd *cmd) | |
1191 | { | |
257862f3 | 1192 | struct wiphy *wiphy = iwm_to_wiphy(iwm); |
bb9f8692 ZY |
1193 | struct iwm_lmac_card_state *state = (struct iwm_lmac_card_state *) |
1194 | (buf + sizeof(struct iwm_umac_wifi_in_hdr)); | |
1195 | u32 flags = le32_to_cpu(state->flags); | |
1196 | ||
1197 | IWM_INFO(iwm, "HW RF Kill %s, CT Kill %s\n", | |
1198 | flags & IWM_CARD_STATE_HW_DISABLED ? "ON" : "OFF", | |
1199 | flags & IWM_CARD_STATE_CTKILL_DISABLED ? "ON" : "OFF"); | |
1200 | ||
e85498b2 SO |
1201 | if (flags & IWM_CARD_STATE_CTKILL_DISABLED) { |
1202 | /* | |
1203 | * We got a CTKILL event: We bring the interface down in | |
1204 | * oder to cool the device down, and try to bring it up | |
1205 | * 30 seconds later. If it's still too hot, we'll go through | |
1206 | * this code path again. | |
1207 | */ | |
1208 | cancel_delayed_work_sync(&iwm->ct_kill_delay); | |
1209 | schedule_delayed_work(&iwm->ct_kill_delay, CT_KILL_DELAY); | |
1210 | } | |
1211 | ||
1212 | wiphy_rfkill_set_hw_state(wiphy, flags & | |
1213 | (IWM_CARD_STATE_HW_DISABLED | | |
1214 | IWM_CARD_STATE_CTKILL_DISABLED)); | |
bb9f8692 ZY |
1215 | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | static int iwm_rx_handle_wifi(struct iwm_priv *iwm, u8 *buf, | |
1220 | unsigned long buf_size) | |
1221 | { | |
1222 | struct iwm_umac_wifi_in_hdr *wifi_hdr; | |
1223 | struct iwm_wifi_cmd *cmd; | |
1224 | u8 source, cmd_id; | |
1225 | u16 seq_num; | |
1226 | u32 count; | |
1227 | u8 resp; | |
1228 | ||
1229 | wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf; | |
1230 | cmd_id = wifi_hdr->sw_hdr.cmd.cmd; | |
1231 | ||
1232 | source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE); | |
1233 | if (source >= IWM_SRC_NUM) { | |
1234 | IWM_CRIT(iwm, "invalid source %d\n", source); | |
1235 | return -EINVAL; | |
1236 | } | |
1237 | ||
1238 | count = (GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT)); | |
1239 | count += sizeof(struct iwm_umac_wifi_in_hdr) - | |
1240 | sizeof(struct iwm_dev_cmd_hdr); | |
1241 | if (count > buf_size) { | |
1242 | IWM_CRIT(iwm, "count %d, buf size:%ld\n", count, buf_size); | |
1243 | return -EINVAL; | |
1244 | } | |
1245 | ||
1246 | resp = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_STATUS); | |
1247 | ||
1248 | seq_num = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num); | |
1249 | ||
1250 | IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x, seqnum: %d\n", | |
1251 | cmd_id, source, seq_num); | |
1252 | ||
1253 | /* | |
1254 | * If this is a response to a previously sent command, there must | |
1255 | * be a pending command for this sequence number. | |
1256 | */ | |
1257 | cmd = iwm_get_pending_wifi_cmd(iwm, seq_num); | |
1258 | ||
1259 | /* Notify the caller only for sync commands. */ | |
1260 | switch (source) { | |
1261 | case UMAC_HDI_IN_SOURCE_FHRX: | |
1262 | if (iwm->lmac_handlers[cmd_id] && | |
1263 | test_bit(cmd_id, &iwm->lmac_handler_map[0])) | |
1264 | return iwm_notif_send(iwm, cmd, cmd_id, source, | |
1265 | buf, count); | |
1266 | break; | |
1267 | case UMAC_HDI_IN_SOURCE_FW: | |
1268 | if (iwm->umac_handlers[cmd_id] && | |
1269 | test_bit(cmd_id, &iwm->umac_handler_map[0])) | |
1270 | return iwm_notif_send(iwm, cmd, cmd_id, source, | |
1271 | buf, count); | |
1272 | break; | |
1273 | case UMAC_HDI_IN_SOURCE_UDMA: | |
1274 | break; | |
1275 | } | |
1276 | ||
1277 | return iwm_rx_handle_resp(iwm, buf, count, cmd); | |
1278 | } | |
1279 | ||
1280 | int iwm_rx_handle_resp(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size, | |
1281 | struct iwm_wifi_cmd *cmd) | |
1282 | { | |
1283 | u8 source, cmd_id; | |
1284 | struct iwm_umac_wifi_in_hdr *wifi_hdr; | |
1285 | int ret = 0; | |
1286 | ||
1287 | wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf; | |
1288 | cmd_id = wifi_hdr->sw_hdr.cmd.cmd; | |
1289 | ||
1290 | source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE); | |
1291 | ||
1292 | IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x\n", cmd_id, source); | |
1293 | ||
1294 | switch (source) { | |
1295 | case UMAC_HDI_IN_SOURCE_FHRX: | |
1296 | if (iwm->lmac_handlers[cmd_id]) | |
1297 | ret = iwm->lmac_handlers[cmd_id] | |
1298 | (iwm, buf, buf_size, cmd); | |
1299 | break; | |
1300 | case UMAC_HDI_IN_SOURCE_FW: | |
1301 | if (iwm->umac_handlers[cmd_id]) | |
1302 | ret = iwm->umac_handlers[cmd_id] | |
1303 | (iwm, buf, buf_size, cmd); | |
1304 | break; | |
1305 | case UMAC_HDI_IN_SOURCE_UDMA: | |
1306 | ret = -EINVAL; | |
1307 | break; | |
1308 | } | |
1309 | ||
1310 | kfree(cmd); | |
1311 | ||
1312 | return ret; | |
1313 | } | |
1314 | ||
1315 | static int iwm_rx_handle_nonwifi(struct iwm_priv *iwm, u8 *buf, | |
1316 | unsigned long buf_size) | |
1317 | { | |
1318 | u8 seq_num; | |
1319 | struct iwm_udma_in_hdr *hdr = (struct iwm_udma_in_hdr *)buf; | |
1320 | struct iwm_nonwifi_cmd *cmd, *next; | |
1321 | ||
1322 | seq_num = GET_VAL32(hdr->cmd, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM); | |
1323 | ||
1324 | /* | |
1325 | * We received a non wifi answer. | |
1326 | * Let's check if there's a pending command for it, and if so | |
1327 | * replace the command payload with the buffer, and then wake the | |
1328 | * callers up. | |
1329 | * That means we only support synchronised non wifi command response | |
1330 | * schemes. | |
1331 | */ | |
1332 | list_for_each_entry_safe(cmd, next, &iwm->nonwifi_pending_cmd, pending) | |
1333 | if (cmd->seq_num == seq_num) { | |
1334 | cmd->resp_received = 1; | |
1335 | cmd->buf.len = buf_size; | |
1336 | memcpy(cmd->buf.hdr, buf, buf_size); | |
1337 | wake_up_interruptible(&iwm->nonwifi_queue); | |
1338 | } | |
1339 | ||
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | static int iwm_rx_handle_umac(struct iwm_priv *iwm, u8 *buf, | |
1344 | unsigned long buf_size) | |
1345 | { | |
1346 | int ret = 0; | |
1347 | u8 op_code; | |
1348 | unsigned long buf_offset = 0; | |
1349 | struct iwm_udma_in_hdr *hdr; | |
1350 | ||
1351 | /* | |
1352 | * To allow for a more efficient bus usage, UMAC | |
1353 | * messages are encapsulated into UDMA ones. This | |
1354 | * way we can have several UMAC messages in one bus | |
1355 | * transfer. | |
1356 | * A UDMA frame size is always aligned on 16 bytes, | |
1357 | * and a UDMA frame must not start with a UMAC_PAD_TERMINAL | |
1358 | * word. This is how we parse a bus frame into several | |
1359 | * UDMA ones. | |
1360 | */ | |
1361 | while (buf_offset < buf_size) { | |
1362 | ||
1363 | hdr = (struct iwm_udma_in_hdr *)(buf + buf_offset); | |
1364 | ||
1365 | if (iwm_rx_check_udma_hdr(hdr) < 0) { | |
1366 | IWM_DBG_RX(iwm, DBG, "End of frame\n"); | |
1367 | break; | |
1368 | } | |
1369 | ||
1370 | op_code = GET_VAL32(hdr->cmd, UMAC_HDI_IN_CMD_OPCODE); | |
1371 | ||
1372 | IWM_DBG_RX(iwm, DBG, "Op code: 0x%x\n", op_code); | |
1373 | ||
1374 | if (op_code == UMAC_HDI_IN_OPCODE_WIFI) { | |
1375 | ret |= iwm_rx_handle_wifi(iwm, buf + buf_offset, | |
1376 | buf_size - buf_offset); | |
1377 | } else if (op_code < UMAC_HDI_IN_OPCODE_NONWIFI_MAX) { | |
1378 | if (GET_VAL32(hdr->cmd, | |
1379 | UDMA_HDI_IN_CMD_NON_WIFI_HW_SIG) != | |
1380 | UDMA_HDI_IN_CMD_NON_WIFI_HW_SIG) { | |
1381 | IWM_ERR(iwm, "Incorrect hw signature\n"); | |
1382 | return -EINVAL; | |
1383 | } | |
1384 | ret |= iwm_rx_handle_nonwifi(iwm, buf + buf_offset, | |
1385 | buf_size - buf_offset); | |
1386 | } else { | |
1387 | IWM_ERR(iwm, "Invalid RX opcode: 0x%x\n", op_code); | |
1388 | ret |= -EINVAL; | |
1389 | } | |
1390 | ||
1391 | buf_offset += iwm_rx_resp_size(hdr); | |
1392 | } | |
1393 | ||
1394 | return ret; | |
1395 | } | |
1396 | ||
1397 | int iwm_rx_handle(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size) | |
1398 | { | |
1399 | struct iwm_udma_in_hdr *hdr; | |
1400 | ||
1401 | hdr = (struct iwm_udma_in_hdr *)buf; | |
1402 | ||
1403 | switch (le32_to_cpu(hdr->cmd)) { | |
1404 | case UMAC_REBOOT_BARKER: | |
7fd6b12f SO |
1405 | if (test_bit(IWM_STATUS_READY, &iwm->status)) { |
1406 | IWM_ERR(iwm, "Unexpected BARKER\n"); | |
1407 | ||
1408 | schedule_work(&iwm->reset_worker); | |
1409 | ||
1410 | return 0; | |
1411 | } | |
1412 | ||
bb9f8692 ZY |
1413 | return iwm_notif_send(iwm, NULL, IWM_BARKER_REBOOT_NOTIFICATION, |
1414 | IWM_SRC_UDMA, buf, buf_size); | |
1415 | case UMAC_ACK_BARKER: | |
1416 | return iwm_notif_send(iwm, NULL, IWM_ACK_BARKER_NOTIFICATION, | |
1417 | IWM_SRC_UDMA, NULL, 0); | |
1418 | default: | |
1419 | IWM_DBG_RX(iwm, DBG, "Received cmd: 0x%x\n", hdr->cmd); | |
1420 | return iwm_rx_handle_umac(iwm, buf, buf_size); | |
1421 | } | |
1422 | ||
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | static const iwm_handler iwm_umac_handlers[] = | |
1427 | { | |
1428 | [UMAC_NOTIFY_OPCODE_ERROR] = iwm_ntf_error, | |
1429 | [UMAC_NOTIFY_OPCODE_ALIVE] = iwm_ntf_umac_alive, | |
1430 | [UMAC_NOTIFY_OPCODE_INIT_COMPLETE] = iwm_ntf_init_complete, | |
1431 | [UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS] = iwm_ntf_wifi_status, | |
1432 | [UMAC_NOTIFY_OPCODE_WIFI_IF_WRAPPER] = iwm_ntf_mlme, | |
1433 | [UMAC_NOTIFY_OPCODE_PAGE_DEALLOC] = iwm_ntf_tx_credit_update, | |
1434 | [UMAC_NOTIFY_OPCODE_RX_TICKET] = iwm_ntf_rx_ticket, | |
1435 | [UMAC_CMD_OPCODE_RESET] = iwm_ntf_umac_reset, | |
1436 | [UMAC_NOTIFY_OPCODE_STATS] = iwm_ntf_statistics, | |
1437 | [UMAC_CMD_OPCODE_EEPROM_PROXY] = iwm_ntf_eeprom_proxy, | |
1438 | [UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST] = iwm_ntf_channel_info_list, | |
a7af530d | 1439 | [UMAC_CMD_OPCODE_STOP_RESUME_STA_TX] = iwm_ntf_stop_resume_tx, |
bb9f8692 ZY |
1440 | [REPLY_RX_MPDU_CMD] = iwm_ntf_rx_packet, |
1441 | [UMAC_CMD_OPCODE_WIFI_IF_WRAPPER] = iwm_ntf_wifi_if_wrapper, | |
1442 | }; | |
1443 | ||
1444 | static const iwm_handler iwm_lmac_handlers[] = | |
1445 | { | |
1446 | [REPLY_TX] = iwm_ntf_tx, | |
1447 | [REPLY_ALIVE] = iwm_ntf_lmac_version, | |
1448 | [CALIBRATION_RES_NOTIFICATION] = iwm_ntf_calib_res, | |
1449 | [CALIBRATION_COMPLETE_NOTIFICATION] = iwm_ntf_calib_complete, | |
1450 | [CALIBRATION_CFG_CMD] = iwm_ntf_calib_cfg, | |
1451 | [REPLY_RX_MPDU_CMD] = iwm_ntf_rx_packet, | |
1452 | [CARD_STATE_NOTIFICATION] = iwm_ntf_card_state, | |
1453 | }; | |
1454 | ||
1455 | void iwm_rx_setup_handlers(struct iwm_priv *iwm) | |
1456 | { | |
1457 | iwm->umac_handlers = (iwm_handler *) iwm_umac_handlers; | |
1458 | iwm->lmac_handlers = (iwm_handler *) iwm_lmac_handlers; | |
1459 | } | |
1460 | ||
1461 | static void iwm_remove_iv(struct sk_buff *skb, u32 hdr_total_len) | |
1462 | { | |
1463 | struct ieee80211_hdr *hdr; | |
1464 | unsigned int hdr_len; | |
1465 | ||
1466 | hdr = (struct ieee80211_hdr *)skb->data; | |
1467 | ||
1468 | if (!ieee80211_has_protected(hdr->frame_control)) | |
1469 | return; | |
1470 | ||
1471 | hdr_len = ieee80211_hdrlen(hdr->frame_control); | |
1472 | if (hdr_total_len <= hdr_len) | |
1473 | return; | |
1474 | ||
1475 | memmove(skb->data + (hdr_total_len - hdr_len), skb->data, hdr_len); | |
1476 | skb_pull(skb, (hdr_total_len - hdr_len)); | |
1477 | } | |
1478 | ||
1479 | static void iwm_rx_adjust_packet(struct iwm_priv *iwm, | |
1480 | struct iwm_rx_packet *packet, | |
1481 | struct iwm_rx_ticket_node *ticket_node) | |
1482 | { | |
1483 | u32 payload_offset = 0, payload_len; | |
1484 | struct iwm_rx_ticket *ticket = ticket_node->ticket; | |
1485 | struct iwm_rx_mpdu_hdr *mpdu_hdr; | |
1486 | struct ieee80211_hdr *hdr; | |
1487 | ||
1488 | mpdu_hdr = (struct iwm_rx_mpdu_hdr *)packet->skb->data; | |
1489 | payload_offset += sizeof(struct iwm_rx_mpdu_hdr); | |
1490 | /* Padding is 0 or 2 bytes */ | |
1491 | payload_len = le16_to_cpu(mpdu_hdr->len) + | |
1492 | (le16_to_cpu(ticket->flags) & IWM_RX_TICKET_PAD_SIZE_MSK); | |
1493 | payload_len -= ticket->tail_len; | |
1494 | ||
1495 | IWM_DBG_RX(iwm, DBG, "Packet adjusted, len:%d, offset:%d, " | |
1496 | "ticket offset:%d ticket tail len:%d\n", | |
1497 | payload_len, payload_offset, ticket->payload_offset, | |
1498 | ticket->tail_len); | |
1499 | ||
1500 | IWM_HEXDUMP(iwm, DBG, RX, "RAW: ", packet->skb->data, packet->skb->len); | |
1501 | ||
1502 | skb_pull(packet->skb, payload_offset); | |
1503 | skb_trim(packet->skb, payload_len); | |
1504 | ||
1505 | iwm_remove_iv(packet->skb, ticket->payload_offset); | |
1506 | ||
1507 | hdr = (struct ieee80211_hdr *) packet->skb->data; | |
1508 | if (ieee80211_is_data_qos(hdr->frame_control)) { | |
1509 | /* UMAC handed QOS_DATA frame with 2 padding bytes appended | |
1510 | * to the qos_ctl field in IEEE 802.11 headers. */ | |
1511 | memmove(packet->skb->data + IEEE80211_QOS_CTL_LEN + 2, | |
1512 | packet->skb->data, | |
1513 | ieee80211_hdrlen(hdr->frame_control) - | |
1514 | IEEE80211_QOS_CTL_LEN); | |
1515 | hdr = (struct ieee80211_hdr *) skb_pull(packet->skb, | |
1516 | IEEE80211_QOS_CTL_LEN + 2); | |
1517 | hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA); | |
1518 | } | |
1519 | ||
1520 | IWM_HEXDUMP(iwm, DBG, RX, "ADJUSTED: ", | |
1521 | packet->skb->data, packet->skb->len); | |
1522 | } | |
1523 | ||
1524 | static void classify8023(struct sk_buff *skb) | |
1525 | { | |
1526 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
1527 | ||
1528 | if (ieee80211_is_data_qos(hdr->frame_control)) { | |
1529 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
1530 | /* frame has qos control */ | |
1531 | skb->priority = *qc & IEEE80211_QOS_CTL_TID_MASK; | |
1532 | } else { | |
1533 | skb->priority = 0; | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | static void iwm_rx_process_packet(struct iwm_priv *iwm, | |
1538 | struct iwm_rx_packet *packet, | |
1539 | struct iwm_rx_ticket_node *ticket_node) | |
1540 | { | |
1541 | int ret; | |
1542 | struct sk_buff *skb = packet->skb; | |
1543 | struct wireless_dev *wdev = iwm_to_wdev(iwm); | |
1544 | struct net_device *ndev = iwm_to_ndev(iwm); | |
1545 | ||
1546 | IWM_DBG_RX(iwm, DBG, "Processing packet ID %d\n", packet->id); | |
1547 | ||
1548 | switch (le16_to_cpu(ticket_node->ticket->action)) { | |
1549 | case IWM_RX_TICKET_RELEASE: | |
1550 | IWM_DBG_RX(iwm, DBG, "RELEASE packet\n"); | |
1551 | classify8023(skb); | |
1552 | iwm_rx_adjust_packet(iwm, packet, ticket_node); | |
1553 | ret = ieee80211_data_to_8023(skb, ndev->dev_addr, wdev->iftype); | |
1554 | if (ret < 0) { | |
1555 | IWM_DBG_RX(iwm, DBG, "Couldn't convert 802.11 header - " | |
1556 | "%d\n", ret); | |
1557 | break; | |
1558 | } | |
1559 | ||
1560 | IWM_HEXDUMP(iwm, DBG, RX, "802.3: ", skb->data, skb->len); | |
1561 | ||
1562 | skb->dev = iwm_to_ndev(iwm); | |
1563 | skb->protocol = eth_type_trans(skb, ndev); | |
3a0e4851 | 1564 | skb->ip_summed = CHECKSUM_NONE; |
bb9f8692 ZY |
1565 | memset(skb->cb, 0, sizeof(skb->cb)); |
1566 | ||
1567 | ndev->stats.rx_packets++; | |
1568 | ndev->stats.rx_bytes += skb->len; | |
1569 | ||
dd13fd64 | 1570 | if (netif_rx_ni(skb) == NET_RX_DROP) { |
bb9f8692 ZY |
1571 | IWM_ERR(iwm, "Packet dropped\n"); |
1572 | ndev->stats.rx_dropped++; | |
1573 | } | |
1574 | break; | |
1575 | case IWM_RX_TICKET_DROP: | |
69cf6e2d SO |
1576 | IWM_DBG_RX(iwm, DBG, "DROP packet: 0x%x\n", |
1577 | le16_to_cpu(ticket_node->ticket->flags)); | |
bb9f8692 ZY |
1578 | kfree_skb(packet->skb); |
1579 | break; | |
1580 | default: | |
af901ca1 | 1581 | IWM_ERR(iwm, "Unknown ticket action: %d\n", |
bb9f8692 ZY |
1582 | le16_to_cpu(ticket_node->ticket->action)); |
1583 | kfree_skb(packet->skb); | |
1584 | } | |
1585 | ||
1586 | kfree(packet); | |
1587 | iwm_rx_ticket_node_free(ticket_node); | |
1588 | } | |
1589 | ||
1590 | /* | |
1591 | * Rx data processing: | |
1592 | * | |
1593 | * We're receiving Rx packet from the LMAC, and Rx ticket from | |
1594 | * the UMAC. | |
1595 | * To forward a target data packet upstream (i.e. to the | |
1596 | * kernel network stack), we must have received an Rx ticket | |
1597 | * that tells us we're allowed to release this packet (ticket | |
1598 | * action is IWM_RX_TICKET_RELEASE). The Rx ticket also indicates, | |
1599 | * among other things, where valid data actually starts in the Rx | |
1600 | * packet. | |
1601 | */ | |
1602 | void iwm_rx_worker(struct work_struct *work) | |
1603 | { | |
1604 | struct iwm_priv *iwm; | |
1605 | struct iwm_rx_ticket_node *ticket, *next; | |
1606 | ||
1607 | iwm = container_of(work, struct iwm_priv, rx_worker); | |
1608 | ||
1609 | /* | |
1610 | * We go through the tickets list and if there is a pending | |
1611 | * packet for it, we push it upstream. | |
1612 | * We stop whenever a ticket is missing its packet, as we're | |
1613 | * supposed to send the packets in order. | |
1614 | */ | |
1615 | list_for_each_entry_safe(ticket, next, &iwm->rx_tickets, node) { | |
1616 | struct iwm_rx_packet *packet = | |
1617 | iwm_rx_packet_get(iwm, le16_to_cpu(ticket->ticket->id)); | |
1618 | ||
1619 | if (!packet) { | |
1620 | IWM_DBG_RX(iwm, DBG, "Skip rx_work: Wait for ticket %d " | |
1621 | "to be handled first\n", | |
1622 | le16_to_cpu(ticket->ticket->id)); | |
1623 | return; | |
1624 | } | |
1625 | ||
1626 | list_del(&ticket->node); | |
1627 | list_del(&packet->node); | |
1628 | iwm_rx_process_packet(iwm, packet, ticket); | |
1629 | } | |
1630 | } | |
1631 |