1 /******************************************************************************
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portionhelp of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/etherdevice.h>
31 #include <linux/slab.h>
32 #include <linux/sched.h>
33 #include <net/mac80211.h>
34 #include <asm/unaligned.h>
40 #define IWL_CMD_ENTRY(x) [x] = #x
42 const char *iwl_dvm_cmd_strings
[REPLY_MAX
] = {
43 IWL_CMD_ENTRY(REPLY_ALIVE
),
44 IWL_CMD_ENTRY(REPLY_ERROR
),
45 IWL_CMD_ENTRY(REPLY_ECHO
),
46 IWL_CMD_ENTRY(REPLY_RXON
),
47 IWL_CMD_ENTRY(REPLY_RXON_ASSOC
),
48 IWL_CMD_ENTRY(REPLY_QOS_PARAM
),
49 IWL_CMD_ENTRY(REPLY_RXON_TIMING
),
50 IWL_CMD_ENTRY(REPLY_ADD_STA
),
51 IWL_CMD_ENTRY(REPLY_REMOVE_STA
),
52 IWL_CMD_ENTRY(REPLY_REMOVE_ALL_STA
),
53 IWL_CMD_ENTRY(REPLY_TXFIFO_FLUSH
),
54 IWL_CMD_ENTRY(REPLY_WEPKEY
),
55 IWL_CMD_ENTRY(REPLY_TX
),
56 IWL_CMD_ENTRY(REPLY_LEDS_CMD
),
57 IWL_CMD_ENTRY(REPLY_TX_LINK_QUALITY_CMD
),
58 IWL_CMD_ENTRY(COEX_PRIORITY_TABLE_CMD
),
59 IWL_CMD_ENTRY(COEX_MEDIUM_NOTIFICATION
),
60 IWL_CMD_ENTRY(COEX_EVENT_CMD
),
61 IWL_CMD_ENTRY(REPLY_QUIET_CMD
),
62 IWL_CMD_ENTRY(REPLY_CHANNEL_SWITCH
),
63 IWL_CMD_ENTRY(CHANNEL_SWITCH_NOTIFICATION
),
64 IWL_CMD_ENTRY(REPLY_SPECTRUM_MEASUREMENT_CMD
),
65 IWL_CMD_ENTRY(SPECTRUM_MEASURE_NOTIFICATION
),
66 IWL_CMD_ENTRY(POWER_TABLE_CMD
),
67 IWL_CMD_ENTRY(PM_SLEEP_NOTIFICATION
),
68 IWL_CMD_ENTRY(PM_DEBUG_STATISTIC_NOTIFIC
),
69 IWL_CMD_ENTRY(REPLY_SCAN_CMD
),
70 IWL_CMD_ENTRY(REPLY_SCAN_ABORT_CMD
),
71 IWL_CMD_ENTRY(SCAN_START_NOTIFICATION
),
72 IWL_CMD_ENTRY(SCAN_RESULTS_NOTIFICATION
),
73 IWL_CMD_ENTRY(SCAN_COMPLETE_NOTIFICATION
),
74 IWL_CMD_ENTRY(BEACON_NOTIFICATION
),
75 IWL_CMD_ENTRY(REPLY_TX_BEACON
),
76 IWL_CMD_ENTRY(WHO_IS_AWAKE_NOTIFICATION
),
77 IWL_CMD_ENTRY(QUIET_NOTIFICATION
),
78 IWL_CMD_ENTRY(REPLY_TX_PWR_TABLE_CMD
),
79 IWL_CMD_ENTRY(MEASURE_ABORT_NOTIFICATION
),
80 IWL_CMD_ENTRY(REPLY_BT_CONFIG
),
81 IWL_CMD_ENTRY(REPLY_STATISTICS_CMD
),
82 IWL_CMD_ENTRY(STATISTICS_NOTIFICATION
),
83 IWL_CMD_ENTRY(REPLY_CARD_STATE_CMD
),
84 IWL_CMD_ENTRY(CARD_STATE_NOTIFICATION
),
85 IWL_CMD_ENTRY(MISSED_BEACONS_NOTIFICATION
),
86 IWL_CMD_ENTRY(REPLY_CT_KILL_CONFIG_CMD
),
87 IWL_CMD_ENTRY(SENSITIVITY_CMD
),
88 IWL_CMD_ENTRY(REPLY_PHY_CALIBRATION_CMD
),
89 IWL_CMD_ENTRY(REPLY_RX_PHY_CMD
),
90 IWL_CMD_ENTRY(REPLY_RX_MPDU_CMD
),
91 IWL_CMD_ENTRY(REPLY_COMPRESSED_BA
),
92 IWL_CMD_ENTRY(CALIBRATION_CFG_CMD
),
93 IWL_CMD_ENTRY(CALIBRATION_RES_NOTIFICATION
),
94 IWL_CMD_ENTRY(CALIBRATION_COMPLETE_NOTIFICATION
),
95 IWL_CMD_ENTRY(REPLY_TX_POWER_DBM_CMD
),
96 IWL_CMD_ENTRY(TEMPERATURE_NOTIFICATION
),
97 IWL_CMD_ENTRY(TX_ANT_CONFIGURATION_CMD
),
98 IWL_CMD_ENTRY(REPLY_BT_COEX_PROFILE_NOTIF
),
99 IWL_CMD_ENTRY(REPLY_BT_COEX_PRIO_TABLE
),
100 IWL_CMD_ENTRY(REPLY_BT_COEX_PROT_ENV
),
101 IWL_CMD_ENTRY(REPLY_WIPAN_PARAMS
),
102 IWL_CMD_ENTRY(REPLY_WIPAN_RXON
),
103 IWL_CMD_ENTRY(REPLY_WIPAN_RXON_TIMING
),
104 IWL_CMD_ENTRY(REPLY_WIPAN_RXON_ASSOC
),
105 IWL_CMD_ENTRY(REPLY_WIPAN_QOS_PARAM
),
106 IWL_CMD_ENTRY(REPLY_WIPAN_WEPKEY
),
107 IWL_CMD_ENTRY(REPLY_WIPAN_P2P_CHANNEL_SWITCH
),
108 IWL_CMD_ENTRY(REPLY_WIPAN_NOA_NOTIFICATION
),
109 IWL_CMD_ENTRY(REPLY_WIPAN_DEACTIVATION_COMPLETE
),
110 IWL_CMD_ENTRY(REPLY_WOWLAN_PATTERNS
),
111 IWL_CMD_ENTRY(REPLY_WOWLAN_WAKEUP_FILTER
),
112 IWL_CMD_ENTRY(REPLY_WOWLAN_TSC_RSC_PARAMS
),
113 IWL_CMD_ENTRY(REPLY_WOWLAN_TKIP_PARAMS
),
114 IWL_CMD_ENTRY(REPLY_WOWLAN_KEK_KCK_MATERIAL
),
115 IWL_CMD_ENTRY(REPLY_WOWLAN_GET_STATUS
),
116 IWL_CMD_ENTRY(REPLY_D3_CONFIG
),
120 /******************************************************************************
122 * Generic RX handler implementations
124 ******************************************************************************/
126 static int iwlagn_rx_reply_error(struct iwl_priv
*priv
,
127 struct iwl_rx_cmd_buffer
*rxb
,
128 struct iwl_device_cmd
*cmd
)
130 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
131 struct iwl_error_resp
*err_resp
= (void *)pkt
->data
;
133 IWL_ERR(priv
, "Error Reply type 0x%08X cmd REPLY_ERROR (0x%02X) "
134 "seq 0x%04X ser 0x%08X\n",
135 le32_to_cpu(err_resp
->error_type
),
137 le16_to_cpu(err_resp
->bad_cmd_seq_num
),
138 le32_to_cpu(err_resp
->error_info
));
142 static int iwlagn_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_cmd_buffer
*rxb
,
143 struct iwl_device_cmd
*cmd
)
145 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
146 struct iwl_csa_notification
*csa
= (void *)pkt
->data
;
149 * See iwlagn_mac_channel_switch.
151 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
152 struct iwl_rxon_cmd
*rxon
= (void *)&ctx
->active
;
154 if (!test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
157 if (!le32_to_cpu(csa
->status
) && csa
->channel
== priv
->switch_channel
) {
158 rxon
->channel
= csa
->channel
;
159 ctx
->staging
.channel
= csa
->channel
;
160 IWL_DEBUG_11H(priv
, "CSA notif: channel %d\n",
161 le16_to_cpu(csa
->channel
));
162 iwl_chswitch_done(priv
, true);
164 IWL_ERR(priv
, "CSA notif (fail) : channel %d\n",
165 le16_to_cpu(csa
->channel
));
166 iwl_chswitch_done(priv
, false);
172 static int iwlagn_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
173 struct iwl_rx_cmd_buffer
*rxb
,
174 struct iwl_device_cmd
*cmd
)
176 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
177 struct iwl_spectrum_notification
*report
= (void *)pkt
->data
;
179 if (!report
->state
) {
181 "Spectrum Measure Notification: Start\n");
185 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
186 priv
->measurement_status
|= MEASUREMENT_READY
;
190 static int iwlagn_rx_pm_sleep_notif(struct iwl_priv
*priv
,
191 struct iwl_rx_cmd_buffer
*rxb
,
192 struct iwl_device_cmd
*cmd
)
194 #ifdef CONFIG_IWLWIFI_DEBUG
195 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
196 struct iwl_sleep_notification
*sleep
= (void *)pkt
->data
;
197 IWL_DEBUG_RX(priv
, "sleep mode: %d, src: %d\n",
198 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
203 static int iwlagn_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
204 struct iwl_rx_cmd_buffer
*rxb
,
205 struct iwl_device_cmd
*cmd
)
207 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
208 u32 __maybe_unused len
=
209 le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
210 IWL_DEBUG_RADIO(priv
, "Dumping %d bytes of unhandled "
211 "notification for PM_DEBUG_STATISTIC_NOTIFIC:\n", len
);
212 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->data
, len
);
216 static int iwlagn_rx_beacon_notif(struct iwl_priv
*priv
,
217 struct iwl_rx_cmd_buffer
*rxb
,
218 struct iwl_device_cmd
*cmd
)
220 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
221 struct iwlagn_beacon_notif
*beacon
= (void *)pkt
->data
;
222 #ifdef CONFIG_IWLWIFI_DEBUG
223 u16 status
= le16_to_cpu(beacon
->beacon_notify_hdr
.status
.status
);
224 u8 rate
= iwl_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
226 IWL_DEBUG_RX(priv
, "beacon status %#x, retries:%d ibssmgr:%d "
227 "tsf:0x%.8x%.8x rate:%d\n",
228 status
& TX_STATUS_MSK
,
229 beacon
->beacon_notify_hdr
.failure_frame
,
230 le32_to_cpu(beacon
->ibss_mgr_status
),
231 le32_to_cpu(beacon
->high_tsf
),
232 le32_to_cpu(beacon
->low_tsf
), rate
);
235 priv
->ibss_manager
= le32_to_cpu(beacon
->ibss_mgr_status
);
241 * iwl_good_plcp_health - checks for plcp error.
243 * When the plcp error is exceeding the thresholds, reset the radio
244 * to improve the throughput.
246 static bool iwlagn_good_plcp_health(struct iwl_priv
*priv
,
247 struct statistics_rx_phy
*cur_ofdm
,
248 struct statistics_rx_ht_phy
*cur_ofdm_ht
,
252 int threshold
= priv
->plcp_delta_threshold
;
254 if (threshold
== IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE
) {
255 IWL_DEBUG_RADIO(priv
, "plcp_err check disabled\n");
259 delta
= le32_to_cpu(cur_ofdm
->plcp_err
) -
260 le32_to_cpu(priv
->statistics
.rx_ofdm
.plcp_err
) +
261 le32_to_cpu(cur_ofdm_ht
->plcp_err
) -
262 le32_to_cpu(priv
->statistics
.rx_ofdm_ht
.plcp_err
);
264 /* Can be negative if firmware reset statistics */
268 if ((delta
* 100 / msecs
) > threshold
) {
269 IWL_DEBUG_RADIO(priv
,
270 "plcp health threshold %u delta %d msecs %u\n",
271 threshold
, delta
, msecs
);
278 int iwl_force_rf_reset(struct iwl_priv
*priv
, bool external
)
280 struct iwl_rf_reset
*rf_reset
;
282 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
285 if (!iwl_is_any_associated(priv
)) {
286 IWL_DEBUG_SCAN(priv
, "force reset rejected: not associated\n");
290 rf_reset
= &priv
->rf_reset
;
291 rf_reset
->reset_request_count
++;
292 if (!external
&& rf_reset
->last_reset_jiffies
&&
293 time_after(rf_reset
->last_reset_jiffies
+
294 IWL_DELAY_NEXT_FORCE_RF_RESET
, jiffies
)) {
295 IWL_DEBUG_INFO(priv
, "RF reset rejected\n");
296 rf_reset
->reset_reject_count
++;
299 rf_reset
->reset_success_count
++;
300 rf_reset
->last_reset_jiffies
= jiffies
;
303 * There is no easy and better way to force reset the radio,
304 * the only known method is switching channel which will force to
305 * reset and tune the radio.
306 * Use internal short scan (single channel) operation to should
307 * achieve this objective.
308 * Driver should reset the radio when number of consecutive missed
309 * beacon, or any other uCode error condition detected.
311 IWL_DEBUG_INFO(priv
, "perform radio reset.\n");
312 iwl_internal_short_hw_scan(priv
);
317 static void iwlagn_recover_from_statistics(struct iwl_priv
*priv
,
318 struct statistics_rx_phy
*cur_ofdm
,
319 struct statistics_rx_ht_phy
*cur_ofdm_ht
,
320 struct statistics_tx
*tx
,
325 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
328 msecs
= jiffies_to_msecs(stamp
- priv
->rx_statistics_jiffies
);
330 /* Only gather statistics and update time stamp when not associated */
331 if (!iwl_is_any_associated(priv
))
334 /* Do not check/recover when do not have enough statistics data */
338 if (iwlwifi_mod_params
.plcp_check
&&
339 !iwlagn_good_plcp_health(priv
, cur_ofdm
, cur_ofdm_ht
, msecs
))
340 iwl_force_rf_reset(priv
, false);
343 /* Calculate noise level, based on measurements during network silence just
344 * before arriving beacon. This measurement can be done only if we know
345 * exactly when to expect beacons, therefore only when we're associated. */
346 static void iwlagn_rx_calc_noise(struct iwl_priv
*priv
)
348 struct statistics_rx_non_phy
*rx_info
;
349 int num_active_rx
= 0;
350 int total_silence
= 0;
351 int bcn_silence_a
, bcn_silence_b
, bcn_silence_c
;
354 rx_info
= &priv
->statistics
.rx_non_phy
;
357 le32_to_cpu(rx_info
->beacon_silence_rssi_a
) & IN_BAND_FILTER
;
359 le32_to_cpu(rx_info
->beacon_silence_rssi_b
) & IN_BAND_FILTER
;
361 le32_to_cpu(rx_info
->beacon_silence_rssi_c
) & IN_BAND_FILTER
;
364 total_silence
+= bcn_silence_a
;
368 total_silence
+= bcn_silence_b
;
372 total_silence
+= bcn_silence_c
;
376 /* Average among active antennas */
378 last_rx_noise
= (total_silence
/ num_active_rx
) - 107;
380 last_rx_noise
= IWL_NOISE_MEAS_NOT_AVAILABLE
;
382 IWL_DEBUG_CALIB(priv
, "inband silence a %u, b %u, c %u, dBm %d\n",
383 bcn_silence_a
, bcn_silence_b
, bcn_silence_c
,
387 #ifdef CONFIG_IWLWIFI_DEBUGFS
389 * based on the assumption of all statistics counter are in DWORD
390 * FIXME: This function is for debugging, do not deal with
391 * the case of counters roll-over.
393 static void accum_stats(__le32
*prev
, __le32
*cur
, __le32
*delta
,
394 __le32
*max_delta
, __le32
*accum
, int size
)
399 i
< size
/ sizeof(__le32
);
400 i
++, prev
++, cur
++, delta
++, max_delta
++, accum
++) {
401 if (le32_to_cpu(*cur
) > le32_to_cpu(*prev
)) {
402 *delta
= cpu_to_le32(
403 le32_to_cpu(*cur
) - le32_to_cpu(*prev
));
404 le32_add_cpu(accum
, le32_to_cpu(*delta
));
405 if (le32_to_cpu(*delta
) > le32_to_cpu(*max_delta
))
412 iwlagn_accumulative_statistics(struct iwl_priv
*priv
,
413 struct statistics_general_common
*common
,
414 struct statistics_rx_non_phy
*rx_non_phy
,
415 struct statistics_rx_phy
*rx_ofdm
,
416 struct statistics_rx_ht_phy
*rx_ofdm_ht
,
417 struct statistics_rx_phy
*rx_cck
,
418 struct statistics_tx
*tx
,
419 struct statistics_bt_activity
*bt_activity
)
421 #define ACCUM(_name) \
422 accum_stats((__le32 *)&priv->statistics._name, \
424 (__le32 *)&priv->delta_stats._name, \
425 (__le32 *)&priv->max_delta_stats._name, \
426 (__le32 *)&priv->accum_stats._name, \
441 iwlagn_accumulative_statistics(struct iwl_priv
*priv
,
442 struct statistics_general_common
*common
,
443 struct statistics_rx_non_phy
*rx_non_phy
,
444 struct statistics_rx_phy
*rx_ofdm
,
445 struct statistics_rx_ht_phy
*rx_ofdm_ht
,
446 struct statistics_rx_phy
*rx_cck
,
447 struct statistics_tx
*tx
,
448 struct statistics_bt_activity
*bt_activity
)
453 static int iwlagn_rx_statistics(struct iwl_priv
*priv
,
454 struct iwl_rx_cmd_buffer
*rxb
,
455 struct iwl_device_cmd
*cmd
)
457 unsigned long stamp
= jiffies
;
458 const int reg_recalib_period
= 60;
460 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
461 u32 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
463 struct statistics_general_common
*common
;
464 struct statistics_rx_non_phy
*rx_non_phy
;
465 struct statistics_rx_phy
*rx_ofdm
;
466 struct statistics_rx_ht_phy
*rx_ofdm_ht
;
467 struct statistics_rx_phy
*rx_cck
;
468 struct statistics_tx
*tx
;
469 struct statistics_bt_activity
*bt_activity
;
471 len
-= sizeof(struct iwl_cmd_header
); /* skip header */
473 IWL_DEBUG_RX(priv
, "Statistics notification received (%d bytes).\n",
476 spin_lock(&priv
->statistics
.lock
);
478 if (len
== sizeof(struct iwl_bt_notif_statistics
)) {
479 struct iwl_bt_notif_statistics
*stats
;
480 stats
= (void *)&pkt
->data
;
482 common
= &stats
->general
.common
;
483 rx_non_phy
= &stats
->rx
.general
.common
;
484 rx_ofdm
= &stats
->rx
.ofdm
;
485 rx_ofdm_ht
= &stats
->rx
.ofdm_ht
;
486 rx_cck
= &stats
->rx
.cck
;
488 bt_activity
= &stats
->general
.activity
;
490 #ifdef CONFIG_IWLWIFI_DEBUGFS
491 /* handle this exception directly */
492 priv
->statistics
.num_bt_kills
= stats
->rx
.general
.num_bt_kills
;
493 le32_add_cpu(&priv
->statistics
.accum_num_bt_kills
,
494 le32_to_cpu(stats
->rx
.general
.num_bt_kills
));
496 } else if (len
== sizeof(struct iwl_notif_statistics
)) {
497 struct iwl_notif_statistics
*stats
;
498 stats
= (void *)&pkt
->data
;
500 common
= &stats
->general
.common
;
501 rx_non_phy
= &stats
->rx
.general
;
502 rx_ofdm
= &stats
->rx
.ofdm
;
503 rx_ofdm_ht
= &stats
->rx
.ofdm_ht
;
504 rx_cck
= &stats
->rx
.cck
;
508 WARN_ONCE(1, "len %d doesn't match BT (%zu) or normal (%zu)\n",
509 len
, sizeof(struct iwl_bt_notif_statistics
),
510 sizeof(struct iwl_notif_statistics
));
511 spin_unlock(&priv
->statistics
.lock
);
515 change
= common
->temperature
!= priv
->statistics
.common
.temperature
||
516 (*flag
& STATISTICS_REPLY_FLG_HT40_MODE_MSK
) !=
517 (priv
->statistics
.flag
& STATISTICS_REPLY_FLG_HT40_MODE_MSK
);
519 iwlagn_accumulative_statistics(priv
, common
, rx_non_phy
, rx_ofdm
,
520 rx_ofdm_ht
, rx_cck
, tx
, bt_activity
);
522 iwlagn_recover_from_statistics(priv
, rx_ofdm
, rx_ofdm_ht
, tx
, stamp
);
524 priv
->statistics
.flag
= *flag
;
525 memcpy(&priv
->statistics
.common
, common
, sizeof(*common
));
526 memcpy(&priv
->statistics
.rx_non_phy
, rx_non_phy
, sizeof(*rx_non_phy
));
527 memcpy(&priv
->statistics
.rx_ofdm
, rx_ofdm
, sizeof(*rx_ofdm
));
528 memcpy(&priv
->statistics
.rx_ofdm_ht
, rx_ofdm_ht
, sizeof(*rx_ofdm_ht
));
529 memcpy(&priv
->statistics
.rx_cck
, rx_cck
, sizeof(*rx_cck
));
530 memcpy(&priv
->statistics
.tx
, tx
, sizeof(*tx
));
531 #ifdef CONFIG_IWLWIFI_DEBUGFS
533 memcpy(&priv
->statistics
.bt_activity
, bt_activity
,
534 sizeof(*bt_activity
));
537 priv
->rx_statistics_jiffies
= stamp
;
539 set_bit(STATUS_STATISTICS
, &priv
->status
);
541 /* Reschedule the statistics timer to occur in
542 * reg_recalib_period seconds to ensure we get a
543 * thermal update even if the uCode doesn't give
545 mod_timer(&priv
->statistics_periodic
, jiffies
+
546 msecs_to_jiffies(reg_recalib_period
* 1000));
548 if (unlikely(!test_bit(STATUS_SCANNING
, &priv
->status
)) &&
549 (pkt
->hdr
.cmd
== STATISTICS_NOTIFICATION
)) {
550 iwlagn_rx_calc_noise(priv
);
551 queue_work(priv
->workqueue
, &priv
->run_time_calib_work
);
553 if (priv
->lib
->temperature
&& change
)
554 priv
->lib
->temperature(priv
);
556 spin_unlock(&priv
->statistics
.lock
);
561 static int iwlagn_rx_reply_statistics(struct iwl_priv
*priv
,
562 struct iwl_rx_cmd_buffer
*rxb
,
563 struct iwl_device_cmd
*cmd
)
565 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
566 struct iwl_notif_statistics
*stats
= (void *)pkt
->data
;
568 if (le32_to_cpu(stats
->flag
) & UCODE_STATISTICS_CLEAR_MSK
) {
569 #ifdef CONFIG_IWLWIFI_DEBUGFS
570 memset(&priv
->accum_stats
, 0,
571 sizeof(priv
->accum_stats
));
572 memset(&priv
->delta_stats
, 0,
573 sizeof(priv
->delta_stats
));
574 memset(&priv
->max_delta_stats
, 0,
575 sizeof(priv
->max_delta_stats
));
577 IWL_DEBUG_RX(priv
, "Statistics have been cleared\n");
579 iwlagn_rx_statistics(priv
, rxb
, cmd
);
583 /* Handle notification from uCode that card's power state is changing
584 * due to software, hardware, or critical temperature RFKILL */
585 static int iwlagn_rx_card_state_notif(struct iwl_priv
*priv
,
586 struct iwl_rx_cmd_buffer
*rxb
,
587 struct iwl_device_cmd
*cmd
)
589 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
590 struct iwl_card_state_notif
*card_state_notif
= (void *)pkt
->data
;
591 u32 flags
= le32_to_cpu(card_state_notif
->flags
);
592 unsigned long status
= priv
->status
;
594 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s CT:%s\n",
595 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
596 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
597 (flags
& CT_CARD_DISABLED
) ?
598 "Reached" : "Not reached");
600 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
603 iwl_write32(priv
->trans
, CSR_UCODE_DRV_GP1_SET
,
604 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
606 iwl_write_direct32(priv
->trans
, HBUS_TARG_MBX_C
,
607 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
609 if (!(flags
& RXON_CARD_DISABLED
)) {
610 iwl_write32(priv
->trans
, CSR_UCODE_DRV_GP1_CLR
,
611 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
612 iwl_write_direct32(priv
->trans
, HBUS_TARG_MBX_C
,
613 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
615 if (flags
& CT_CARD_DISABLED
)
616 iwl_tt_enter_ct_kill(priv
);
618 if (!(flags
& CT_CARD_DISABLED
))
619 iwl_tt_exit_ct_kill(priv
);
621 if (flags
& HW_CARD_DISABLED
)
622 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
624 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
627 if (!(flags
& RXON_CARD_DISABLED
))
628 iwl_scan_cancel(priv
);
630 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
631 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)))
632 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
633 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
635 wake_up(&priv
->trans
->wait_command_queue
);
639 static int iwlagn_rx_missed_beacon_notif(struct iwl_priv
*priv
,
640 struct iwl_rx_cmd_buffer
*rxb
,
641 struct iwl_device_cmd
*cmd
)
644 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
645 struct iwl_missed_beacon_notif
*missed_beacon
= (void *)pkt
->data
;
647 if (le32_to_cpu(missed_beacon
->consecutive_missed_beacons
) >
648 priv
->missed_beacon_threshold
) {
649 IWL_DEBUG_CALIB(priv
,
650 "missed bcn cnsq %d totl %d rcd %d expctd %d\n",
651 le32_to_cpu(missed_beacon
->consecutive_missed_beacons
),
652 le32_to_cpu(missed_beacon
->total_missed_becons
),
653 le32_to_cpu(missed_beacon
->num_recvd_beacons
),
654 le32_to_cpu(missed_beacon
->num_expected_beacons
));
655 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
656 iwl_init_sensitivity(priv
);
661 /* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
662 * This will be used later in iwl_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
663 static int iwlagn_rx_reply_rx_phy(struct iwl_priv
*priv
,
664 struct iwl_rx_cmd_buffer
*rxb
,
665 struct iwl_device_cmd
*cmd
)
667 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
669 priv
->last_phy_res_valid
= true;
671 memcpy(&priv
->last_phy_res
, pkt
->data
,
672 sizeof(struct iwl_rx_phy_res
));
677 * returns non-zero if packet should be dropped
679 static int iwlagn_set_decrypted_flag(struct iwl_priv
*priv
,
680 struct ieee80211_hdr
*hdr
,
682 struct ieee80211_rx_status
*stats
)
684 u16 fc
= le16_to_cpu(hdr
->frame_control
);
687 * All contexts have the same setting here due to it being
688 * a module parameter, so OK to check any context.
690 if (priv
->contexts
[IWL_RXON_CTX_BSS
].active
.filter_flags
&
691 RXON_FILTER_DIS_DECRYPT_MSK
)
694 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
697 IWL_DEBUG_RX(priv
, "decrypt_res:0x%x\n", decrypt_res
);
698 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
699 case RX_RES_STATUS_SEC_TYPE_TKIP
:
700 /* The uCode has got a bad phase 1 Key, pushes the packet.
701 * Decryption will be done in SW. */
702 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
703 RX_RES_STATUS_BAD_KEY_TTAK
)
706 case RX_RES_STATUS_SEC_TYPE_WEP
:
707 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
708 RX_RES_STATUS_BAD_ICV_MIC
) {
709 /* bad ICV, the packet is destroyed since the
710 * decryption is inplace, drop it */
711 IWL_DEBUG_RX(priv
, "Packet destroyed\n");
714 case RX_RES_STATUS_SEC_TYPE_CCMP
:
715 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
716 RX_RES_STATUS_DECRYPT_OK
) {
717 IWL_DEBUG_RX(priv
, "hw decrypt successfully!!!\n");
718 stats
->flag
|= RX_FLAG_DECRYPTED
;
728 static void iwlagn_pass_packet_to_mac80211(struct iwl_priv
*priv
,
729 struct ieee80211_hdr
*hdr
,
732 struct iwl_rx_cmd_buffer
*rxb
,
733 struct ieee80211_rx_status
*stats
)
736 __le16 fc
= hdr
->frame_control
;
737 struct iwl_rxon_context
*ctx
;
738 unsigned int hdrlen
, fraglen
;
740 /* We only process data packets if the interface is open */
741 if (unlikely(!priv
->is_open
)) {
742 IWL_DEBUG_DROP_LIMIT(priv
,
743 "Dropping packet while interface is not open.\n");
747 /* In case of HW accelerated crypto and bad decryption, drop */
748 if (!iwlwifi_mod_params
.sw_crypto
&&
749 iwlagn_set_decrypted_flag(priv
, hdr
, ampdu_status
, stats
))
752 /* Dont use dev_alloc_skb(), we'll have enough headroom once
753 * ieee80211_hdr pulled.
755 skb
= alloc_skb(128, GFP_ATOMIC
);
757 IWL_ERR(priv
, "alloc_skb failed\n");
760 /* If frame is small enough to fit in skb->head, pull it completely.
761 * If not, only pull ieee80211_hdr so that splice() or TCP coalesce
762 * are more efficient.
764 hdrlen
= (len
<= skb_tailroom(skb
)) ? len
: sizeof(*hdr
);
766 memcpy(skb_put(skb
, hdrlen
), hdr
, hdrlen
);
767 fraglen
= len
- hdrlen
;
770 int offset
= (void *)hdr
+ hdrlen
-
771 rxb_addr(rxb
) + rxb_offset(rxb
);
773 skb_add_rx_frag(skb
, 0, rxb_steal_page(rxb
), offset
,
774 fraglen
, rxb
->truesize
);
778 * Wake any queues that were stopped due to a passive channel tx
779 * failure. This can happen because the regulatory enforcement in
780 * the device waits for a beacon before allowing transmission,
781 * sometimes even after already having transmitted frames for the
782 * association because the new RXON may reset the information.
784 if (unlikely(ieee80211_is_beacon(fc
) && priv
->passive_no_rx
)) {
785 for_each_context(priv
, ctx
) {
786 if (!ether_addr_equal(hdr
->addr3
,
787 ctx
->active
.bssid_addr
))
789 iwlagn_lift_passive_no_rx(priv
);
793 memcpy(IEEE80211_SKB_RXCB(skb
), stats
, sizeof(*stats
));
795 ieee80211_rx(priv
->hw
, skb
);
798 static u32
iwlagn_translate_rx_status(struct iwl_priv
*priv
, u32 decrypt_in
)
802 if ((decrypt_in
& RX_RES_STATUS_STATION_FOUND
) ==
803 RX_RES_STATUS_STATION_FOUND
)
804 decrypt_out
|= (RX_RES_STATUS_STATION_FOUND
|
805 RX_RES_STATUS_NO_STATION_INFO_MISMATCH
);
807 decrypt_out
|= (decrypt_in
& RX_RES_STATUS_SEC_TYPE_MSK
);
809 /* packet was not encrypted */
810 if ((decrypt_in
& RX_RES_STATUS_SEC_TYPE_MSK
) ==
811 RX_RES_STATUS_SEC_TYPE_NONE
)
814 /* packet was encrypted with unknown alg */
815 if ((decrypt_in
& RX_RES_STATUS_SEC_TYPE_MSK
) ==
816 RX_RES_STATUS_SEC_TYPE_ERR
)
819 /* decryption was not done in HW */
820 if ((decrypt_in
& RX_MPDU_RES_STATUS_DEC_DONE_MSK
) !=
821 RX_MPDU_RES_STATUS_DEC_DONE_MSK
)
824 switch (decrypt_in
& RX_RES_STATUS_SEC_TYPE_MSK
) {
826 case RX_RES_STATUS_SEC_TYPE_CCMP
:
827 /* alg is CCM: check MIC only */
828 if (!(decrypt_in
& RX_MPDU_RES_STATUS_MIC_OK
))
830 decrypt_out
|= RX_RES_STATUS_BAD_ICV_MIC
;
832 decrypt_out
|= RX_RES_STATUS_DECRYPT_OK
;
836 case RX_RES_STATUS_SEC_TYPE_TKIP
:
837 if (!(decrypt_in
& RX_MPDU_RES_STATUS_TTAK_OK
)) {
839 decrypt_out
|= RX_RES_STATUS_BAD_KEY_TTAK
;
842 /* fall through if TTAK OK */
844 if (!(decrypt_in
& RX_MPDU_RES_STATUS_ICV_OK
))
845 decrypt_out
|= RX_RES_STATUS_BAD_ICV_MIC
;
847 decrypt_out
|= RX_RES_STATUS_DECRYPT_OK
;
851 IWL_DEBUG_RX(priv
, "decrypt_in:0x%x decrypt_out = 0x%x\n",
852 decrypt_in
, decrypt_out
);
857 /* Calc max signal level (dBm) among 3 possible receivers */
858 static int iwlagn_calc_rssi(struct iwl_priv
*priv
,
859 struct iwl_rx_phy_res
*rx_resp
)
861 /* data from PHY/DSP regarding signal strength, etc.,
862 * contents are always there, not configurable by host
864 struct iwlagn_non_cfg_phy
*ncphy
=
865 (struct iwlagn_non_cfg_phy
*)rx_resp
->non_cfg_phy_buf
;
866 u32 val
, rssi_a
, rssi_b
, rssi_c
, max_rssi
;
869 val
= le32_to_cpu(ncphy
->non_cfg_phy
[IWLAGN_RX_RES_AGC_IDX
]);
870 agc
= (val
& IWLAGN_OFDM_AGC_MSK
) >> IWLAGN_OFDM_AGC_BIT_POS
;
872 /* Find max rssi among 3 possible receivers.
873 * These values are measured by the digital signal processor (DSP).
874 * They should stay fairly constant even as the signal strength varies,
875 * if the radio's automatic gain control (AGC) is working right.
876 * AGC value (see below) will provide the "interesting" info.
878 val
= le32_to_cpu(ncphy
->non_cfg_phy
[IWLAGN_RX_RES_RSSI_AB_IDX
]);
879 rssi_a
= (val
& IWLAGN_OFDM_RSSI_INBAND_A_BITMSK
) >>
880 IWLAGN_OFDM_RSSI_A_BIT_POS
;
881 rssi_b
= (val
& IWLAGN_OFDM_RSSI_INBAND_B_BITMSK
) >>
882 IWLAGN_OFDM_RSSI_B_BIT_POS
;
883 val
= le32_to_cpu(ncphy
->non_cfg_phy
[IWLAGN_RX_RES_RSSI_C_IDX
]);
884 rssi_c
= (val
& IWLAGN_OFDM_RSSI_INBAND_C_BITMSK
) >>
885 IWLAGN_OFDM_RSSI_C_BIT_POS
;
887 max_rssi
= max_t(u32
, rssi_a
, rssi_b
);
888 max_rssi
= max_t(u32
, max_rssi
, rssi_c
);
890 IWL_DEBUG_STATS(priv
, "Rssi In A %d B %d C %d Max %d AGC dB %d\n",
891 rssi_a
, rssi_b
, rssi_c
, max_rssi
, agc
);
893 /* dBm = max_rssi dB - agc dB - constant.
894 * Higher AGC (higher radio gain) means lower signal. */
895 return max_rssi
- agc
- IWLAGN_RSSI_OFFSET
;
898 /* Called for REPLY_RX_MPDU_CMD */
899 static int iwlagn_rx_reply_rx(struct iwl_priv
*priv
,
900 struct iwl_rx_cmd_buffer
*rxb
,
901 struct iwl_device_cmd
*cmd
)
903 struct ieee80211_hdr
*header
;
904 struct ieee80211_rx_status rx_status
;
905 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
906 struct iwl_rx_phy_res
*phy_res
;
907 __le32 rx_pkt_status
;
908 struct iwl_rx_mpdu_res_start
*amsdu
;
913 if (!priv
->last_phy_res_valid
) {
914 IWL_ERR(priv
, "MPDU frame without cached PHY data\n");
917 phy_res
= &priv
->last_phy_res
;
918 amsdu
= (struct iwl_rx_mpdu_res_start
*)pkt
->data
;
919 header
= (struct ieee80211_hdr
*)(pkt
->data
+ sizeof(*amsdu
));
920 len
= le16_to_cpu(amsdu
->byte_count
);
921 rx_pkt_status
= *(__le32
*)(pkt
->data
+ sizeof(*amsdu
) + len
);
922 ampdu_status
= iwlagn_translate_rx_status(priv
,
923 le32_to_cpu(rx_pkt_status
));
925 if ((unlikely(phy_res
->cfg_phy_cnt
> 20))) {
926 IWL_DEBUG_DROP(priv
, "dsp size out of range [0,20]: %d\n",
927 phy_res
->cfg_phy_cnt
);
931 if (!(rx_pkt_status
& RX_RES_STATUS_NO_CRC32_ERROR
) ||
932 !(rx_pkt_status
& RX_RES_STATUS_NO_RXE_OVERFLOW
)) {
933 IWL_DEBUG_RX(priv
, "Bad CRC or FIFO: 0x%08X.\n",
934 le32_to_cpu(rx_pkt_status
));
938 /* This will be used in several places later */
939 rate_n_flags
= le32_to_cpu(phy_res
->rate_n_flags
);
941 /* rx_status carries information about the packet to mac80211 */
942 rx_status
.mactime
= le64_to_cpu(phy_res
->timestamp
);
943 rx_status
.band
= (phy_res
->phy_flags
& RX_RES_PHY_FLAGS_BAND_24_MSK
) ?
944 IEEE80211_BAND_2GHZ
: IEEE80211_BAND_5GHZ
;
946 ieee80211_channel_to_frequency(le16_to_cpu(phy_res
->channel
),
949 iwlagn_hwrate_to_mac80211_idx(rate_n_flags
, rx_status
.band
);
952 /* TSF isn't reliable. In order to allow smooth user experience,
953 * this W/A doesn't propagate it to the mac80211 */
954 /*rx_status.flag |= RX_FLAG_MACTIME_START;*/
956 priv
->ucode_beacon_time
= le32_to_cpu(phy_res
->beacon_time_stamp
);
958 /* Find max signal strength (dBm) among 3 antenna/receiver chains */
959 rx_status
.signal
= iwlagn_calc_rssi(priv
, phy_res
);
961 IWL_DEBUG_STATS_LIMIT(priv
, "Rssi %d, TSF %llu\n",
962 rx_status
.signal
, (unsigned long long)rx_status
.mactime
);
967 * It seems that the antenna field in the phy flags value
968 * is actually a bit field. This is undefined by radiotap,
969 * it wants an actual antenna number but I always get "7"
970 * for most legacy frames I receive indicating that the
971 * same frame was received on all three RX chains.
973 * I think this field should be removed in favor of a
974 * new 802.11n radiotap field "RX chains" that is defined
978 (le16_to_cpu(phy_res
->phy_flags
) & RX_RES_PHY_FLAGS_ANTENNA_MSK
)
979 >> RX_RES_PHY_FLAGS_ANTENNA_POS
;
981 /* set the preamble flag if appropriate */
982 if (phy_res
->phy_flags
& RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK
)
983 rx_status
.flag
|= RX_FLAG_SHORTPRE
;
985 if (phy_res
->phy_flags
& RX_RES_PHY_FLAGS_AGG_MSK
) {
987 * We know which subframes of an A-MPDU belong
988 * together since we get a single PHY response
989 * from the firmware for all of them
991 rx_status
.flag
|= RX_FLAG_AMPDU_DETAILS
;
992 rx_status
.ampdu_reference
= priv
->ampdu_ref
;
995 /* Set up the HT phy flags */
996 if (rate_n_flags
& RATE_MCS_HT_MSK
)
997 rx_status
.flag
|= RX_FLAG_HT
;
998 if (rate_n_flags
& RATE_MCS_HT40_MSK
)
999 rx_status
.flag
|= RX_FLAG_40MHZ
;
1000 if (rate_n_flags
& RATE_MCS_SGI_MSK
)
1001 rx_status
.flag
|= RX_FLAG_SHORT_GI
;
1002 if (rate_n_flags
& RATE_MCS_GF_MSK
)
1003 rx_status
.flag
|= RX_FLAG_HT_GF
;
1005 iwlagn_pass_packet_to_mac80211(priv
, header
, len
, ampdu_status
,
1010 static int iwlagn_rx_noa_notification(struct iwl_priv
*priv
,
1011 struct iwl_rx_cmd_buffer
*rxb
,
1012 struct iwl_device_cmd
*cmd
)
1014 struct iwl_wipan_noa_data
*new_data
, *old_data
;
1015 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1016 struct iwl_wipan_noa_notification
*noa_notif
= (void *)pkt
->data
;
1018 /* no condition -- we're in softirq */
1019 old_data
= rcu_dereference_protected(priv
->noa_data
, true);
1021 if (noa_notif
->noa_active
) {
1022 u32 len
= le16_to_cpu(noa_notif
->noa_attribute
.length
);
1025 /* EID, len, OUI, subtype */
1026 len
+= 1 + 1 + 3 + 1;
1027 /* P2P id, P2P length */
1031 new_data
= kmalloc(sizeof(*new_data
) + len
, GFP_ATOMIC
);
1033 new_data
->length
= len
;
1034 new_data
->data
[0] = WLAN_EID_VENDOR_SPECIFIC
;
1035 new_data
->data
[1] = len
- 2; /* not counting EID, len */
1036 new_data
->data
[2] = (WLAN_OUI_WFA
>> 16) & 0xff;
1037 new_data
->data
[3] = (WLAN_OUI_WFA
>> 8) & 0xff;
1038 new_data
->data
[4] = (WLAN_OUI_WFA
>> 0) & 0xff;
1039 new_data
->data
[5] = WLAN_OUI_TYPE_WFA_P2P
;
1040 memcpy(&new_data
->data
[6], &noa_notif
->noa_attribute
,
1046 rcu_assign_pointer(priv
->noa_data
, new_data
);
1049 kfree_rcu(old_data
, rcu_head
);
1055 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
1057 * Setup the RX handlers for each of the reply types sent from the uCode
1060 void iwl_setup_rx_handlers(struct iwl_priv
*priv
)
1062 int (**handlers
)(struct iwl_priv
*priv
, struct iwl_rx_cmd_buffer
*rxb
,
1063 struct iwl_device_cmd
*cmd
);
1065 handlers
= priv
->rx_handlers
;
1067 handlers
[REPLY_ERROR
] = iwlagn_rx_reply_error
;
1068 handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwlagn_rx_csa
;
1069 handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
1070 iwlagn_rx_spectrum_measure_notif
;
1071 handlers
[PM_SLEEP_NOTIFICATION
] = iwlagn_rx_pm_sleep_notif
;
1072 handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
1073 iwlagn_rx_pm_debug_statistics_notif
;
1074 handlers
[BEACON_NOTIFICATION
] = iwlagn_rx_beacon_notif
;
1075 handlers
[REPLY_ADD_STA
] = iwl_add_sta_callback
;
1077 handlers
[REPLY_WIPAN_NOA_NOTIFICATION
] = iwlagn_rx_noa_notification
;
1080 * The same handler is used for both the REPLY to a discrete
1081 * statistics request from the host as well as for the periodic
1082 * statistics notifications (after received beacons) from the uCode.
1084 handlers
[REPLY_STATISTICS_CMD
] = iwlagn_rx_reply_statistics
;
1085 handlers
[STATISTICS_NOTIFICATION
] = iwlagn_rx_statistics
;
1087 iwl_setup_rx_scan_handlers(priv
);
1089 handlers
[CARD_STATE_NOTIFICATION
] = iwlagn_rx_card_state_notif
;
1090 handlers
[MISSED_BEACONS_NOTIFICATION
] =
1091 iwlagn_rx_missed_beacon_notif
;
1094 handlers
[REPLY_RX_PHY_CMD
] = iwlagn_rx_reply_rx_phy
;
1095 handlers
[REPLY_RX_MPDU_CMD
] = iwlagn_rx_reply_rx
;
1098 handlers
[REPLY_COMPRESSED_BA
] =
1099 iwlagn_rx_reply_compressed_ba
;
1101 priv
->rx_handlers
[REPLY_TX
] = iwlagn_rx_reply_tx
;
1103 /* set up notification wait support */
1104 iwl_notification_wait_init(&priv
->notif_wait
);
1106 /* Set up BT Rx handlers */
1107 if (priv
->cfg
->bt_params
)
1108 iwlagn_bt_rx_handler_setup(priv
);
1111 int iwl_rx_dispatch(struct iwl_op_mode
*op_mode
, struct iwl_rx_cmd_buffer
*rxb
,
1112 struct iwl_device_cmd
*cmd
)
1114 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1115 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1119 * Do the notification wait before RX handlers so
1120 * even if the RX handler consumes the RXB we have
1121 * access to it in the notification wait entry.
1123 iwl_notification_wait_notify(&priv
->notif_wait
, pkt
);
1125 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1127 * RX data may be forwarded to userspace in one
1128 * of two cases: the user owns the fw through testmode or when
1129 * the user requested to monitor the rx w/o affecting the regular flow.
1130 * In these cases the iwl_test object will handle forwarding the rx
1131 * data to user space.
1132 * Note that if the ownership flag != IWL_OWNERSHIP_TM the flow
1135 iwl_test_rx(&priv
->tst
, rxb
);
1138 if (priv
->ucode_owner
!= IWL_OWNERSHIP_TM
) {
1139 /* Based on type of command response or notification,
1140 * handle those that need handling via function in
1141 * rx_handlers table. See iwl_setup_rx_handlers() */
1142 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
1143 priv
->rx_handlers_stats
[pkt
->hdr
.cmd
]++;
1144 err
= priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
, cmd
);
1146 /* No handling needed */
1147 IWL_DEBUG_RX(priv
, "No handler needed for %s, 0x%02x\n",
1148 iwl_dvm_get_cmd_string(pkt
->hdr
.cmd
),