2 * Intel Wireless Multicomm 3200 WiFi driver
4 * Copyright (C) 2009 Intel Corporation. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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
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.
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.
33 * Intel Corporation <ilw@linux.intel.com>
34 * Samuel Ortiz <samuel.ortiz@intel.com>
35 * Zhu Yi <yi.zhu@intel.com>
39 #include <linux/kernel.h>
40 #include <linux/netdevice.h>
41 #include <linux/sched.h>
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>
59 static int iwm_rx_check_udma_hdr(struct iwm_udma_in_hdr
*hdr
)
61 if ((le32_to_cpu(hdr
->cmd
) == UMAC_PAD_TERMINAL
) ||
62 (le32_to_cpu(hdr
->size
) == UMAC_PAD_TERMINAL
))
68 static inline int iwm_rx_resp_size(struct iwm_udma_in_hdr
*hdr
)
70 return ALIGN(le32_to_cpu(hdr
->size
) + sizeof(struct iwm_udma_in_hdr
),
75 * Notification handlers:
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
84 * -> iwm_rx_handle_umac()
85 * -> iwm_rx_handle_wifi()
86 * -> iwm_rx_handle_resp()
91 * -> iwm_rx_handle_non_wifi()
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.
97 static int iwm_ntf_error(struct iwm_priv
*iwm
, u8
*buf
,
98 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
100 struct iwm_umac_notif_error
*error
;
101 struct iwm_fw_error_hdr
*fw_err
;
103 error
= (struct iwm_umac_notif_error
*)buf
;
104 fw_err
= &error
->err
;
106 memcpy(iwm
->last_fw_err
, fw_err
, sizeof(struct iwm_fw_error_hdr
));
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
));
129 static int iwm_ntf_umac_alive(struct iwm_priv
*iwm
, u8
*buf
,
130 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
132 struct iwm_umac_notif_alive
*alive_resp
=
133 (struct iwm_umac_notif_alive
*)(buf
);
134 u16 status
= le16_to_cpu(alive_resp
->status
);
136 if (status
== UMAC_NTFY_ALIVE_STATUS_ERR
) {
137 IWM_ERR(iwm
, "Receive error UMAC_ALIVE\n");
141 iwm_tx_credit_init_pools(iwm
, alive_resp
);
146 static int iwm_ntf_init_complete(struct iwm_priv
*iwm
, u8
*buf
,
147 unsigned long buf_size
,
148 struct iwm_wifi_cmd
*cmd
)
150 struct wiphy
*wiphy
= iwm_to_wiphy(iwm
);
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
);
154 bool blocked
= (status
== UMAC_NTFY_INIT_COMPLETE_STATUS_ERR
);
157 IWM_DBG_NTF(iwm
, DBG
, "Hardware rf kill is on (radio off)\n");
159 IWM_DBG_NTF(iwm
, DBG
, "Hardware rf kill is off (radio on)\n");
161 wiphy_rfkill_set_hw_state(wiphy
, blocked
);
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
)
170 int pool_nr
, total_freed_pages
;
171 unsigned long pool_map
;
173 struct iwm_umac_notif_page_dealloc
*dealloc
=
174 (struct iwm_umac_notif_page_dealloc
*)buf
;
176 pool_nr
= GET_VAL32(dealloc
->changes
, UMAC_DEALLOC_NTFY_CHANGES_CNT
);
177 pool_map
= GET_VAL32(dealloc
->changes
, UMAC_DEALLOC_NTFY_CHANGES_MSK
);
179 IWM_DBG_TX(iwm
, DBG
, "UMAC dealloc notification: pool nr %d, "
180 "update map 0x%lx\n", pool_nr
, pool_map
);
182 spin_lock(&iwm
->tx_credit
.lock
);
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
);
194 spin_unlock(&iwm
->tx_credit
.lock
);
199 static int iwm_ntf_umac_reset(struct iwm_priv
*iwm
, u8
*buf
,
200 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
202 IWM_DBG_NTF(iwm
, DBG
, "UMAC RESET done\n");
207 static int iwm_ntf_lmac_version(struct iwm_priv
*iwm
, u8
*buf
,
208 unsigned long buf_size
,
209 struct iwm_wifi_cmd
*cmd
)
211 IWM_DBG_NTF(iwm
, INFO
, "LMAC Version: %x.%x\n", buf
[9], buf
[8]);
216 static int iwm_ntf_tx(struct iwm_priv
*iwm
, u8
*buf
,
217 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
219 struct iwm_lmac_tx_resp
*tx_resp
;
220 struct iwm_umac_wifi_in_hdr
*hdr
;
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
;
226 IWM_DBG_TX(iwm
, DBG
, "REPLY_TX, buf size: %lu\n", buf_size
);
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
));
242 static int iwm_ntf_calib_res(struct iwm_priv
*iwm
, u8
*buf
,
243 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
247 struct iwm_lmac_calib_hdr
*hdr
= (struct iwm_lmac_calib_hdr
*)
248 (buf
+ sizeof(struct iwm_umac_wifi_in_hdr
));
250 opcode
= hdr
->opcode
;
252 BUG_ON(opcode
>= CALIBRATION_CMD_NUM
||
253 opcode
< PHY_CALIBRATE_OPCODES_NUM
);
255 IWM_DBG_NTF(iwm
, DBG
, "Store calibration result for opcode: %d\n",
258 buf_size
-= sizeof(struct iwm_umac_wifi_in_hdr
);
259 calib_buf
= iwm
->calib_res
[opcode
].buf
;
261 if (!calib_buf
|| (iwm
->calib_res
[opcode
].size
< buf_size
)) {
263 calib_buf
= kzalloc(buf_size
, GFP_KERNEL
);
265 IWM_ERR(iwm
, "Memory allocation failed: calib_res\n");
268 iwm
->calib_res
[opcode
].buf
= calib_buf
;
269 iwm
->calib_res
[opcode
].size
= buf_size
;
272 memcpy(calib_buf
, hdr
, buf_size
);
273 set_bit(opcode
- PHY_CALIBRATE_OPCODES_NUM
, &iwm
->calib_done_map
);
278 static int iwm_ntf_calib_complete(struct iwm_priv
*iwm
, u8
*buf
,
279 unsigned long buf_size
,
280 struct iwm_wifi_cmd
*cmd
)
282 IWM_DBG_NTF(iwm
, DBG
, "Calibration completed\n");
287 static int iwm_ntf_calib_cfg(struct iwm_priv
*iwm
, u8
*buf
,
288 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
290 struct iwm_lmac_cal_cfg_resp
*cal_resp
;
292 cal_resp
= (struct iwm_lmac_cal_cfg_resp
*)
293 (buf
+ sizeof(struct iwm_umac_wifi_in_hdr
));
295 IWM_DBG_NTF(iwm
, DBG
, "Calibration CFG command status: %d\n",
296 le32_to_cpu(cal_resp
->status
));
301 static int iwm_ntf_wifi_status(struct iwm_priv
*iwm
, u8
*buf
,
302 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
304 struct iwm_umac_notif_wifi_status
*status
=
305 (struct iwm_umac_notif_wifi_status
*)buf
;
307 iwm
->core_enabled
|= le16_to_cpu(status
->status
);
312 static struct iwm_rx_ticket_node
*
313 iwm_rx_ticket_node_alloc(struct iwm_priv
*iwm
, struct iwm_rx_ticket
*ticket
)
315 struct iwm_rx_ticket_node
*ticket_node
;
317 ticket_node
= kzalloc(sizeof(struct iwm_rx_ticket_node
), GFP_KERNEL
);
319 IWM_ERR(iwm
, "Couldn't allocate ticket node\n");
320 return ERR_PTR(-ENOMEM
);
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");
327 return ERR_PTR(-ENOMEM
);
330 memcpy(ticket_node
->ticket
, ticket
, sizeof(struct iwm_rx_ticket
));
331 INIT_LIST_HEAD(&ticket_node
->node
);
336 static void iwm_rx_ticket_node_free(struct iwm_rx_ticket_node
*ticket_node
)
338 kfree(ticket_node
->ticket
);
342 static struct iwm_rx_packet
*iwm_rx_packet_get(struct iwm_priv
*iwm
, u16 id
)
344 u8 id_hash
= IWM_RX_ID_GET_HASH(id
);
345 struct list_head
*packet_list
;
346 struct iwm_rx_packet
*packet
, *next
;
348 packet_list
= &iwm
->rx_packets
[id_hash
];
350 list_for_each_entry_safe(packet
, next
, packet_list
, node
)
351 if (packet
->id
== id
)
357 static struct iwm_rx_packet
*iwm_rx_packet_alloc(struct iwm_priv
*iwm
, u8
*buf
,
360 struct iwm_rx_packet
*packet
;
362 packet
= kzalloc(sizeof(struct iwm_rx_packet
), GFP_KERNEL
);
364 IWM_ERR(iwm
, "Couldn't allocate packet\n");
365 return ERR_PTR(-ENOMEM
);
368 packet
->skb
= dev_alloc_skb(size
);
370 IWM_ERR(iwm
, "Couldn't allocate packet SKB\n");
372 return ERR_PTR(-ENOMEM
);
375 packet
->pkt_size
= size
;
377 skb_put(packet
->skb
, size
);
378 memcpy(packet
->skb
->data
, buf
, size
);
379 INIT_LIST_HEAD(&packet
->node
);
385 void iwm_rx_free(struct iwm_priv
*iwm
)
387 struct iwm_rx_ticket_node
*ticket
, *nt
;
388 struct iwm_rx_packet
*packet
, *np
;
391 list_for_each_entry_safe(ticket
, nt
, &iwm
->rx_tickets
, node
) {
392 list_del(&ticket
->node
);
393 iwm_rx_ticket_node_free(ticket
);
396 for (i
= 0; i
< IWM_RX_ID_HASH
; i
++) {
397 list_for_each_entry_safe(packet
, np
, &iwm
->rx_packets
[i
],
399 list_del(&packet
->node
);
400 kfree_skb(packet
->skb
);
406 static int iwm_ntf_rx_ticket(struct iwm_priv
*iwm
, u8
*buf
,
407 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
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;
415 for (i
= 0; i
< ntf_rx_ticket
->num_tickets
; i
++) {
416 struct iwm_rx_ticket_node
*ticket_node
;
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
);
426 IWM_DBG_RX(iwm
, DBG
, "TICKET %s(%d)\n",
427 ticket
->action
== IWM_RX_TICKET_RELEASE
?
430 list_add_tail(&ticket_node
->node
, &iwm
->rx_tickets
);
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..
443 IWM_ERR(iwm
, "Invalid RX ticket action: 0x%x\n",
451 queue_work(iwm
->rx_wq
, &iwm
->rx_worker
);
456 static int iwm_ntf_rx_packet(struct iwm_priv
*iwm
, u8
*buf
,
457 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
459 struct iwm_umac_wifi_in_hdr
*wifi_hdr
;
460 struct iwm_rx_packet
*packet
;
464 IWM_DBG_RX(iwm
, DBG
, "\n");
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
);
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
);
473 IWM_DBG_RX(iwm
, DBG
, "Packet id: %d\n", id
);
474 IWM_HEXDUMP(iwm
, DBG
, RX
, "PACKET: ", buf
+ buf_offset
, packet_size
);
476 packet
= iwm_rx_packet_alloc(iwm
, buf
+ buf_offset
, packet_size
, id
);
478 return PTR_ERR(packet
);
480 list_add_tail(&packet
->node
, &iwm
->rx_packets
[IWM_RX_ID_GET_HASH(id
)]);
482 /* We might (unlikely) have received the packet _after_ the ticket */
483 queue_work(iwm
->rx_wq
, &iwm
->rx_worker
);
489 static int iwm_mlme_assoc_start(struct iwm_priv
*iwm
, u8
*buf
,
490 unsigned long buf_size
,
491 struct iwm_wifi_cmd
*cmd
)
493 struct iwm_umac_notif_assoc_start
*start
;
495 start
= (struct iwm_umac_notif_assoc_start
*)buf
;
497 IWM_DBG_MLME(iwm
, INFO
, "Association with %pM Started, reason: %d\n",
498 start
->bssid
, le32_to_cpu(start
->roam_reason
));
500 wake_up_interruptible(&iwm
->mlme_queue
);
505 static u8
iwm_is_open_wep_profile(struct iwm_priv
*iwm
)
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
))
517 static int iwm_mlme_assoc_complete(struct iwm_priv
*iwm
, u8
*buf
,
518 unsigned long buf_size
,
519 struct iwm_wifi_cmd
*cmd
)
521 struct iwm_umac_notif_assoc_complete
*complete
=
522 (struct iwm_umac_notif_assoc_complete
*)buf
;
524 IWM_DBG_MLME(iwm
, INFO
, "Association with %pM completed, status: %d\n",
525 complete
->bssid
, complete
->status
);
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
;
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
) {
536 cancel_delayed_work(&iwm
->disconnect
);
537 cfg80211_roamed(iwm_to_ndev(iwm
),
539 iwm
->req_ie
, iwm
->req_ie_len
,
540 iwm
->resp_ie
, iwm
->resp_ie_len
,
547 if (iwm
->conf
.mode
== UMAC_MODE_IBSS
)
550 if (!test_bit(IWM_STATUS_RESETTING
, &iwm
->status
))
551 cfg80211_connect_result(iwm_to_ndev(iwm
),
553 iwm
->req_ie
, iwm
->req_ie_len
,
554 iwm
->resp_ie
, iwm
->resp_ie_len
,
558 cfg80211_roamed(iwm_to_ndev(iwm
),
560 iwm
->req_ie
, iwm
->req_ie_len
,
561 iwm
->resp_ie
, iwm
->resp_ie_len
,
564 case UMAC_ASSOC_COMPLETE_FAILURE
:
565 clear_bit(IWM_STATUS_ASSOCIATED
, &iwm
->status
);
566 memset(iwm
->bssid
, 0, ETH_ALEN
);
569 /* Internal roaming state, avoid notifying SME. */
570 if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING
, &iwm
->status
)
571 && iwm
->conf
.mode
== UMAC_MODE_BSS
) {
572 cancel_delayed_work(&iwm
->disconnect
);
578 if (iwm
->conf
.mode
== UMAC_MODE_IBSS
)
581 if (!test_bit(IWM_STATUS_RESETTING
, &iwm
->status
))
582 if (!iwm_is_open_wep_profile(iwm
)) {
583 cfg80211_connect_result(iwm_to_ndev(iwm
),
586 WLAN_STATUS_UNSPECIFIED_FAILURE
,
589 /* Let's try shared WEP auth */
590 IWM_ERR(iwm
, "Trying WEP shared auth\n");
591 schedule_work(&iwm
->auth_retry_worker
);
594 cfg80211_disconnected(iwm_to_ndev(iwm
), 0, NULL
, 0,
601 clear_bit(IWM_STATUS_RESETTING
, &iwm
->status
);
605 cfg80211_ibss_joined(iwm_to_ndev(iwm
), iwm
->bssid
, GFP_KERNEL
);
606 clear_bit(IWM_STATUS_RESETTING
, &iwm
->status
);
610 static int iwm_mlme_profile_invalidate(struct iwm_priv
*iwm
, u8
*buf
,
611 unsigned long buf_size
,
612 struct iwm_wifi_cmd
*cmd
)
614 struct iwm_umac_notif_profile_invalidate
*invalid
;
617 invalid
= (struct iwm_umac_notif_profile_invalidate
*)buf
;
618 reason
= le32_to_cpu(invalid
->reason
);
620 IWM_DBG_MLME(iwm
, INFO
, "Profile Invalidated. Reason: %d\n", reason
);
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
,
628 clear_bit(IWM_STATUS_SME_CONNECTING
, &iwm
->status
);
629 clear_bit(IWM_STATUS_ASSOCIATED
, &iwm
->status
);
631 iwm
->umac_profile_active
= 0;
632 memset(iwm
->bssid
, 0, ETH_ALEN
);
637 wake_up_interruptible(&iwm
->mlme_queue
);
642 #define IWM_DISCONNECT_INTERVAL (5 * HZ)
644 static int iwm_mlme_connection_terminated(struct iwm_priv
*iwm
, u8
*buf
,
645 unsigned long buf_size
,
646 struct iwm_wifi_cmd
*cmd
)
648 IWM_DBG_MLME(iwm
, DBG
, "Connection terminated\n");
650 schedule_delayed_work(&iwm
->disconnect
, IWM_DISCONNECT_INTERVAL
);
655 static int iwm_mlme_scan_complete(struct iwm_priv
*iwm
, u8
*buf
,
656 unsigned long buf_size
,
657 struct iwm_wifi_cmd
*cmd
)
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
);
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
);
669 if (!test_and_clear_bit(IWM_STATUS_SCANNING
, &iwm
->status
)) {
670 IWM_ERR(iwm
, "Scan complete while device not scanning\n");
673 if (!iwm
->scan_request
)
676 ret
= iwm_cfg80211_inform_bss(iwm
);
678 cfg80211_scan_done(iwm
->scan_request
,
679 (result
& UMAC_SCAN_RESULT_ABORTED
) ? 1 : !!ret
);
680 iwm
->scan_request
= NULL
;
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
)
689 struct iwm_umac_notif_sta_info
*umac_sta
=
690 (struct iwm_umac_notif_sta_info
*)buf
;
691 struct iwm_sta_info
*sta
;
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
)];
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
),
704 umac_sta
->flags
& UMAC_STA_FLAG_QOS
);
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
);
711 case UMAC_OPCODE_REMOVE
:
712 IWM_DBG_MLME(iwm
, INFO
, "Remove STA: ID = %d, Color = %d, "
714 GET_VAL8(umac_sta
->sta_id
, LMAC_STA_ID
),
715 GET_VAL8(umac_sta
->sta_id
, LMAC_STA_COLOR
),
718 sta
= &iwm
->sta_table
[GET_VAL8(umac_sta
->sta_id
, LMAC_STA_ID
)];
720 if (!memcmp(sta
->addr
, umac_sta
->mac_addr
, ETH_ALEN
))
724 case UMAC_OPCODE_CLEAR_ALL
:
725 for (i
= 0; i
< IWM_STA_TABLE_NUM
; i
++)
726 iwm
->sta_table
[i
].valid
= 0;
736 static int iwm_mlme_medium_lost(struct iwm_priv
*iwm
, u8
*buf
,
737 unsigned long buf_size
,
738 struct iwm_wifi_cmd
*cmd
)
740 struct wiphy
*wiphy
= iwm_to_wiphy(iwm
);
742 IWM_DBG_NTF(iwm
, DBG
, "WiFi/WiMax coexistence radio is OFF\n");
744 wiphy_rfkill_set_hw_state(wiphy
, true);
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
)
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
;
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
;
765 mgmt
= (struct ieee80211_mgmt
*)(umac_bss
->frame_buf
);
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
);
778 list_for_each_entry_safe(bss
, next
, &iwm
->bss_list
, node
)
779 if (bss
->bss
->table_idx
== umac_bss
->table_idx
)
782 if (&bss
->node
!= &iwm
->bss_list
) {
783 /* Remove the old BSS entry, we will add it back later. */
784 list_del(&bss
->node
);
789 bss
= kzalloc(sizeof(struct iwm_bss_info
), GFP_KERNEL
);
791 IWM_ERR(iwm
, "Couldn't allocate bss_info\n");
796 bss
->bss
= kzalloc(bss_len
, GFP_KERNEL
);
799 IWM_ERR(iwm
, "Couldn't allocate bss\n");
803 INIT_LIST_HEAD(&bss
->node
);
804 memcpy(bss
->bss
, umac_bss
, bss_len
);
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
];
811 IWM_ERR(iwm
, "Invalid band: %d\n", umac_bss
->band
);
815 freq
= ieee80211_channel_to_frequency(umac_bss
->channel
);
816 channel
= ieee80211_get_channel(wiphy
, freq
);
817 signal
= umac_bss
->rssi
* 100;
819 bss
->cfg_bss
= cfg80211_inform_bss_frame(wiphy
, channel
,
825 list_add_tail(&bss
->node
, &iwm
->bss_list
);
835 static int iwm_mlme_remove_bss(struct iwm_priv
*iwm
, u8
*buf
,
836 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
838 struct iwm_umac_notif_bss_removed
*bss_rm
=
839 (struct iwm_umac_notif_bss_removed
*)buf
;
840 struct iwm_bss_info
*bss
, *next
;
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
;
851 mgmt
= (struct ieee80211_mgmt
*)
852 (bss
->bss
->frame_buf
);
853 IWM_DBG_MLME(iwm
, ERR
,
854 "BSS removed: %pM\n",
856 list_del(&bss
->node
);
865 static int iwm_mlme_mgt_frame(struct iwm_priv
*iwm
, u8
*buf
,
866 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
868 struct iwm_umac_notif_mgt_frame
*mgt_frame
=
869 (struct iwm_umac_notif_mgt_frame
*)buf
;
870 struct ieee80211_mgmt
*mgt
= (struct ieee80211_mgmt
*)mgt_frame
->frame
;
873 IWM_HEXDUMP(iwm
, DBG
, MLME
, "MGT: ", mgt_frame
->frame
,
874 le16_to_cpu(mgt_frame
->len
));
876 if (ieee80211_is_assoc_req(mgt
->frame_control
)) {
877 ie
= mgt
->u
.assoc_req
.variable
;;
879 le16_to_cpu(mgt_frame
->len
) - (ie
- (u8
*)mgt
);
881 iwm
->req_ie
= kmemdup(mgt
->u
.assoc_req
.variable
,
882 iwm
->req_ie_len
, GFP_KERNEL
);
883 } else if (ieee80211_is_reassoc_req(mgt
->frame_control
)) {
884 ie
= mgt
->u
.reassoc_req
.variable
;;
886 le16_to_cpu(mgt_frame
->len
) - (ie
- (u8
*)mgt
);
888 iwm
->req_ie
= kmemdup(mgt
->u
.reassoc_req
.variable
,
889 iwm
->req_ie_len
, GFP_KERNEL
);
890 } else if (ieee80211_is_assoc_resp(mgt
->frame_control
)) {
891 ie
= mgt
->u
.assoc_resp
.variable
;;
893 le16_to_cpu(mgt_frame
->len
) - (ie
- (u8
*)mgt
);
895 iwm
->resp_ie
= kmemdup(mgt
->u
.assoc_resp
.variable
,
896 iwm
->resp_ie_len
, GFP_KERNEL
);
897 } else if (ieee80211_is_reassoc_resp(mgt
->frame_control
)) {
898 ie
= mgt
->u
.reassoc_resp
.variable
;;
900 le16_to_cpu(mgt_frame
->len
) - (ie
- (u8
*)mgt
);
902 iwm
->resp_ie
= kmemdup(mgt
->u
.reassoc_resp
.variable
,
903 iwm
->resp_ie_len
, GFP_KERNEL
);
905 IWM_ERR(iwm
, "Unsupported management frame: 0x%x",
906 le16_to_cpu(mgt
->frame_control
));
913 static int iwm_ntf_mlme(struct iwm_priv
*iwm
, u8
*buf
,
914 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
916 struct iwm_umac_notif_wifi_if
*notif
=
917 (struct iwm_umac_notif_wifi_if
*)buf
;
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
:
927 return iwm_mlme_connection_terminated(iwm
, buf
, buf_size
, cmd
);
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");
935 case WIFI_IF_NTFY_RADIO_PREEMPTION
:
936 return iwm_mlme_medium_lost(iwm
, buf
, buf_size
, cmd
);
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
);
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",
958 IWM_ERR(iwm
, "Unhandled notification: 0x%x\n", notif
->status
);
965 #define IWM_STATS_UPDATE_INTERVAL (2 * HZ)
967 static int iwm_ntf_statistics(struct iwm_priv
*iwm
, u8
*buf
,
968 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
970 struct iwm_umac_notif_stats
*stats
= (struct iwm_umac_notif_stats
*)buf
;
971 struct iw_statistics
*wstats
= &iwm
->wstats
;
975 IWM_DBG_MLME(iwm
, DBG
, "Statistics notification received\n");
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
])));
983 /* UMAC passes rate info multiplies by 2 */
984 iwm
->rate
= max_rate
>> 1;
986 iwm
->txpower
= le32_to_cpu(stats
->tx_power
);
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
);
995 wstats
->miss
.beacon
= le32_to_cpu(stats
->missed_beacons
);
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;
1003 wstats
->qual
.qual
= stats
->rssi_dbm
+ 110;
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
;
1009 schedule_delayed_work(&iwm
->stats_request
, IWM_STATS_UPDATE_INTERVAL
);
1011 mod_timer(&iwm
->watchdog
, round_jiffies(jiffies
+ IWM_WATCHDOG_PERIOD
));
1016 static int iwm_ntf_eeprom_proxy(struct iwm_priv
*iwm
, u8
*buf
,
1017 unsigned long buf_size
,
1018 struct iwm_wifi_cmd
*cmd
)
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
);
1028 IWM_DBG_NTF(iwm
, DBG
, "type: 0x%x, len: %d, offset: 0x%x\n",
1029 hdr_type
, hdr_len
, hdr_offset
);
1031 if ((hdr_offset
+ hdr_len
) > IWM_EEPROM_LEN
)
1035 case IWM_UMAC_CMD_EEPROM_TYPE_READ
:
1036 memcpy(iwm
->eeprom
+ hdr_offset
, eeprom_proxy
->buf
, hdr_len
);
1038 case IWM_UMAC_CMD_EEPROM_TYPE_WRITE
:
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
)
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
;
1057 band
= wiphy
->bands
[IEEE80211_BAND_2GHZ
];
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
);
1065 if (!test_bit(i
, &ch_mask_0
))
1066 band
->channels
[i
].flags
|= IEEE80211_CHAN_DISABLED
;
1068 if (!test_bit(i
, &ch_mask_2
))
1069 band
->channels
[i
].flags
|= IEEE80211_CHAN_NO_IBSS
;
1072 band
= wiphy
->bands
[IEEE80211_BAND_5GHZ
];
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
);
1080 if (!test_bit(i
, &ch_mask_1
))
1081 band
->channels
[i
].flags
|= IEEE80211_CHAN_DISABLED
;
1083 if (!test_bit(i
, &ch_mask_3
))
1084 band
->channels
[i
].flags
|= IEEE80211_CHAN_NO_IBSS
;
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
)
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
);
1103 IWM_DBG_NTF(iwm
, DBG
, "stop/resume notification:\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
);
1110 if (stp_res_tx
->flags
& UMAC_STOP_TX_FLAG
)
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
);
1120 for_each_bit(bit
, (unsigned long *)&tid_msk
, IWM_UMAC_TID_NR
) {
1121 tid_info
= &sta_info
->tid_info
[bit
];
1123 mutex_lock(&tid_info
->mutex
);
1124 tid_info
->stopped
= stop
;
1125 mutex_unlock(&tid_info
->mutex
);
1128 struct iwm_tx_queue
*txq
;
1129 int queue
= iwm_tid_to_queue(bit
);
1134 txq
= &iwm
->txq
[queue
];
1136 * If we resume, we have to move our SKBs
1137 * back to the tx queue and queue some work.
1139 spin_lock_bh(&txq
->lock
);
1140 skb_queue_splice_init(&txq
->queue
, &txq
->stopped_queue
);
1141 spin_unlock_bh(&txq
->lock
);
1143 queue_work(txq
->wq
, &txq
->worker
);
1148 /* We send an ACK only for the stop case */
1150 ret
= iwm_send_umac_stop_resume_tx(iwm
, stp_res_tx
);
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
)
1159 struct iwm_umac_wifi_if
*hdr
;
1162 IWM_ERR(iwm
, "Couldn't find expected wifi command\n");
1166 hdr
= (struct iwm_umac_wifi_if
*)cmd
->buf
.payload
;
1168 IWM_DBG_NTF(iwm
, DBG
, "WIFI_IF_WRAPPER cmd is delivered to UMAC: "
1169 "oid is 0x%x\n", hdr
->oid
);
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
);
1178 case UMAC_WIFI_IF_CMD_SET_PROFILE
:
1179 iwm
->umac_profile_active
= 1;
1188 #define CT_KILL_DELAY (30 * HZ)
1189 static int iwm_ntf_card_state(struct iwm_priv
*iwm
, u8
*buf
,
1190 unsigned long buf_size
, struct iwm_wifi_cmd
*cmd
)
1192 struct wiphy
*wiphy
= iwm_to_wiphy(iwm
);
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
);
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");
1201 if (flags
& IWM_CARD_STATE_CTKILL_DISABLED
) {
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.
1208 cancel_delayed_work_sync(&iwm
->ct_kill_delay
);
1209 schedule_delayed_work(&iwm
->ct_kill_delay
, CT_KILL_DELAY
);
1212 wiphy_rfkill_set_hw_state(wiphy
, flags
&
1213 (IWM_CARD_STATE_HW_DISABLED
|
1214 IWM_CARD_STATE_CTKILL_DISABLED
));
1219 static int iwm_rx_handle_wifi(struct iwm_priv
*iwm
, u8
*buf
,
1220 unsigned long buf_size
)
1222 struct iwm_umac_wifi_in_hdr
*wifi_hdr
;
1223 struct iwm_wifi_cmd
*cmd
;
1229 wifi_hdr
= (struct iwm_umac_wifi_in_hdr
*)buf
;
1230 cmd_id
= wifi_hdr
->sw_hdr
.cmd
.cmd
;
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
);
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
);
1246 resp
= GET_VAL32(wifi_hdr
->sw_hdr
.meta_data
, UMAC_FW_CMD_STATUS
);
1248 seq_num
= le16_to_cpu(wifi_hdr
->sw_hdr
.cmd
.seq_num
);
1250 IWM_DBG_RX(iwm
, DBG
, "CMD:0x%x, source: 0x%x, seqnum: %d\n",
1251 cmd_id
, source
, seq_num
);
1254 * If this is a response to a previously sent command, there must
1255 * be a pending command for this sequence number.
1257 cmd
= iwm_get_pending_wifi_cmd(iwm
, seq_num
);
1259 /* Notify the caller only for sync commands. */
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
,
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
,
1273 case UMAC_HDI_IN_SOURCE_UDMA
:
1277 return iwm_rx_handle_resp(iwm
, buf
, count
, cmd
);
1280 int iwm_rx_handle_resp(struct iwm_priv
*iwm
, u8
*buf
, unsigned long buf_size
,
1281 struct iwm_wifi_cmd
*cmd
)
1284 struct iwm_umac_wifi_in_hdr
*wifi_hdr
;
1287 wifi_hdr
= (struct iwm_umac_wifi_in_hdr
*)buf
;
1288 cmd_id
= wifi_hdr
->sw_hdr
.cmd
.cmd
;
1290 source
= GET_VAL32(wifi_hdr
->hw_hdr
.cmd
, UMAC_HDI_IN_CMD_SOURCE
);
1292 IWM_DBG_RX(iwm
, DBG
, "CMD:0x%x, source: 0x%x\n", cmd_id
, 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
);
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
);
1305 case UMAC_HDI_IN_SOURCE_UDMA
:
1315 static int iwm_rx_handle_nonwifi(struct iwm_priv
*iwm
, u8
*buf
,
1316 unsigned long buf_size
)
1319 struct iwm_udma_in_hdr
*hdr
= (struct iwm_udma_in_hdr
*)buf
;
1320 struct iwm_nonwifi_cmd
*cmd
, *next
;
1322 seq_num
= GET_VAL32(hdr
->cmd
, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM
);
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
1329 * That means we only support synchronised non wifi command response
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
);
1343 static int iwm_rx_handle_umac(struct iwm_priv
*iwm
, u8
*buf
,
1344 unsigned long buf_size
)
1348 unsigned long buf_offset
= 0;
1349 struct iwm_udma_in_hdr
*hdr
;
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
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
1361 while (buf_offset
< buf_size
) {
1363 hdr
= (struct iwm_udma_in_hdr
*)(buf
+ buf_offset
);
1365 if (iwm_rx_check_udma_hdr(hdr
) < 0) {
1366 IWM_DBG_RX(iwm
, DBG
, "End of frame\n");
1370 op_code
= GET_VAL32(hdr
->cmd
, UMAC_HDI_IN_CMD_OPCODE
);
1372 IWM_DBG_RX(iwm
, DBG
, "Op code: 0x%x\n", op_code
);
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");
1384 ret
|= iwm_rx_handle_nonwifi(iwm
, buf
+ buf_offset
,
1385 buf_size
- buf_offset
);
1387 IWM_ERR(iwm
, "Invalid RX opcode: 0x%x\n", op_code
);
1391 buf_offset
+= iwm_rx_resp_size(hdr
);
1397 int iwm_rx_handle(struct iwm_priv
*iwm
, u8
*buf
, unsigned long buf_size
)
1399 struct iwm_udma_in_hdr
*hdr
;
1401 hdr
= (struct iwm_udma_in_hdr
*)buf
;
1403 switch (le32_to_cpu(hdr
->cmd
)) {
1404 case UMAC_REBOOT_BARKER
:
1405 if (test_bit(IWM_STATUS_READY
, &iwm
->status
)) {
1406 IWM_ERR(iwm
, "Unexpected BARKER\n");
1408 schedule_work(&iwm
->reset_worker
);
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);
1419 IWM_DBG_RX(iwm
, DBG
, "Received cmd: 0x%x\n", hdr
->cmd
);
1420 return iwm_rx_handle_umac(iwm
, buf
, buf_size
);
1426 static const iwm_handler iwm_umac_handlers
[] =
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
,
1439 [UMAC_CMD_OPCODE_STOP_RESUME_STA_TX
] = iwm_ntf_stop_resume_tx
,
1440 [REPLY_RX_MPDU_CMD
] = iwm_ntf_rx_packet
,
1441 [UMAC_CMD_OPCODE_WIFI_IF_WRAPPER
] = iwm_ntf_wifi_if_wrapper
,
1444 static const iwm_handler iwm_lmac_handlers
[] =
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
,
1455 void iwm_rx_setup_handlers(struct iwm_priv
*iwm
)
1457 iwm
->umac_handlers
= (iwm_handler
*) iwm_umac_handlers
;
1458 iwm
->lmac_handlers
= (iwm_handler
*) iwm_lmac_handlers
;
1461 static void iwm_remove_iv(struct sk_buff
*skb
, u32 hdr_total_len
)
1463 struct ieee80211_hdr
*hdr
;
1464 unsigned int hdr_len
;
1466 hdr
= (struct ieee80211_hdr
*)skb
->data
;
1468 if (!ieee80211_has_protected(hdr
->frame_control
))
1471 hdr_len
= ieee80211_hdrlen(hdr
->frame_control
);
1472 if (hdr_total_len
<= hdr_len
)
1475 memmove(skb
->data
+ (hdr_total_len
- hdr_len
), skb
->data
, hdr_len
);
1476 skb_pull(skb
, (hdr_total_len
- hdr_len
));
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
)
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
;
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
;
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
,
1500 IWM_HEXDUMP(iwm
, DBG
, RX
, "RAW: ", packet
->skb
->data
, packet
->skb
->len
);
1502 skb_pull(packet
->skb
, payload_offset
);
1503 skb_trim(packet
->skb
, payload_len
);
1505 iwm_remove_iv(packet
->skb
, ticket
->payload_offset
);
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,
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
);
1520 IWM_HEXDUMP(iwm
, DBG
, RX
, "ADJUSTED: ",
1521 packet
->skb
->data
, packet
->skb
->len
);
1524 static void classify8023(struct sk_buff
*skb
)
1526 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*) skb
->data
;
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
;
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
)
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
);
1546 IWM_DBG_RX(iwm
, DBG
, "Processing packet ID %d\n", packet
->id
);
1548 switch (le16_to_cpu(ticket_node
->ticket
->action
)) {
1549 case IWM_RX_TICKET_RELEASE
:
1550 IWM_DBG_RX(iwm
, DBG
, "RELEASE packet\n");
1552 iwm_rx_adjust_packet(iwm
, packet
, ticket_node
);
1553 ret
= ieee80211_data_to_8023(skb
, ndev
->dev_addr
, wdev
->iftype
);
1555 IWM_DBG_RX(iwm
, DBG
, "Couldn't convert 802.11 header - "
1560 IWM_HEXDUMP(iwm
, DBG
, RX
, "802.3: ", skb
->data
, skb
->len
);
1562 skb
->dev
= iwm_to_ndev(iwm
);
1563 skb
->protocol
= eth_type_trans(skb
, ndev
);
1564 skb
->ip_summed
= CHECKSUM_NONE
;
1565 memset(skb
->cb
, 0, sizeof(skb
->cb
));
1567 ndev
->stats
.rx_packets
++;
1568 ndev
->stats
.rx_bytes
+= skb
->len
;
1570 if (netif_rx_ni(skb
) == NET_RX_DROP
) {
1571 IWM_ERR(iwm
, "Packet dropped\n");
1572 ndev
->stats
.rx_dropped
++;
1575 case IWM_RX_TICKET_DROP
:
1576 IWM_DBG_RX(iwm
, DBG
, "DROP packet: 0x%x\n",
1577 le16_to_cpu(ticket_node
->ticket
->flags
));
1578 kfree_skb(packet
->skb
);
1581 IWM_ERR(iwm
, "Unknown ticket action: %d\n",
1582 le16_to_cpu(ticket_node
->ticket
->action
));
1583 kfree_skb(packet
->skb
);
1587 iwm_rx_ticket_node_free(ticket_node
);
1591 * Rx data processing:
1593 * We're receiving Rx packet from the LMAC, and Rx ticket from
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
1602 void iwm_rx_worker(struct work_struct
*work
)
1604 struct iwm_priv
*iwm
;
1605 struct iwm_rx_ticket_node
*ticket
, *next
;
1607 iwm
= container_of(work
, struct iwm_priv
, rx_worker
);
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.
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
));
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
));
1626 list_del(&ticket
->node
);
1627 list_del(&packet
->node
);
1628 iwm_rx_process_packet(iwm
, packet
, ticket
);