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wifi: iwlwifi: mvm: add the firmware API for channel survey

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When requested, the firmware can return per-channel survey information
generally used for ACS (automatic channel selection). Add the API for
this, which consists of a flag and a new channel survey notification.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506095953.1facde532676.I3864ac4bc0fecb7fd5136e85c07585ab7100234b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Benjamin Berg 2024-05-06 10:04:12 +03:00 committed by Johannes Berg
parent 2e194efa38
commit 97320888cb
2 changed files with 33 additions and 1 deletions
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33
drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright (C) 2012-2014, 2018-2023 Intel Corporation
* Copyright (C) 2012-2014, 2018-2024 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
@ -13,6 +13,10 @@
* enum iwl_scan_subcmd_ids - scan commands
*/
enum iwl_scan_subcmd_ids {
/**
* @CHANNEL_SURVEY_NOTIF: &struct iwl_umac_scan_channel_survey_notif
*/
CHANNEL_SURVEY_NOTIF = 0xFB,
/**
* @OFFLOAD_MATCH_INFO_NOTIF: &struct iwl_scan_offload_match_info
*/
@ -62,6 +66,8 @@ struct iwl_ssid_ie {
#define IWL_FAST_SCHED_SCAN_ITERATIONS 3
#define IWL_MAX_SCHED_SCAN_PLANS 2
#define IWL_MAX_NUM_NOISE_RESULTS 22
enum scan_framework_client {
SCAN_CLIENT_SCHED_SCAN = BIT(0),
SCAN_CLIENT_NETDETECT = BIT(1),
@ -642,10 +648,13 @@ enum iwl_umac_scan_general_flags {
* notification per channel or not.
* @IWL_UMAC_SCAN_GEN_FLAGS2_ALLOW_CHNL_REORDER: Whether to allow channel
* reorder optimization or not.
* @IWL_UMAC_SCAN_GEN_FLAGS2_COLLECT_CHANNEL_STATS: Enable channel statistics
* collection when #IWL_UMAC_SCAN_GEN_FLAGS_V2_FORCE_PASSIVE is set.
*/
enum iwl_umac_scan_general_flags2 {
IWL_UMAC_SCAN_GEN_FLAGS2_NOTIF_PER_CHNL = BIT(0),
IWL_UMAC_SCAN_GEN_FLAGS2_ALLOW_CHNL_REORDER = BIT(1),
IWL_UMAC_SCAN_GEN_FLAGS2_COLLECT_CHANNEL_STATS = BIT(3),
};
/**
@ -1258,4 +1267,26 @@ struct iwl_umac_scan_iter_complete_notif {
struct iwl_scan_results_notif results[];
} __packed; /* SCAN_ITER_COMPLETE_NTF_UMAC_API_S_VER_2 */
/**
* struct iwl_umac_scan_channel_survey_notif - data for survey
* @channel: the channel scanned
* @band: band of channel
* @noise: noise floor measurements in negative dBm, invalid 0xff
* @reserved: for future use and alignment
* @active_time: time in ms the radio was turned on (on the channel)
* @busy_time: time in ms the channel was sensed busy, 0 for a clean channel
* @tx_time: time the radio spent transmitting data
* @rx_time: time the radio spent receiving data
*/
struct iwl_umac_scan_channel_survey_notif {
__le32 channel;
__le32 band;
u8 noise[IWL_MAX_NUM_NOISE_RESULTS];
u8 reserved[2];
__le32 active_time;
__le32 busy_time;
__le32 tx_time;
__le32 rx_time;
} __packed; /* SCAN_CHANNEL_SURVEY_NTF_API_S_VER_1 */
#endif /* __iwl_fw_api_scan_h__ */

1
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -651,6 +651,7 @@ static const struct iwl_hcmd_names iwl_mvm_statistics_names[] = {
* Access is done through binary search
*/
static const struct iwl_hcmd_names iwl_mvm_scan_names[] = {
HCMD_NAME(CHANNEL_SURVEY_NOTIF),
HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF),
};