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iwlwifi: mvm: add adaptive dwell support 

Update the scan command API with support for adaptive dwell.  Adaptive
dwell is a type of scan that dynamically changes the time it remains
on each channel listening for beacons or probe responses.

Signed-off-by: Roee Zamir <roee.zamir@intel.com>
Signed-off-by: Beni Lev <beni.lev@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Zamir, Roee 2017-03-30 16:34:51 +03:00 committed by Luca Coelho
parent 9a233bb802
commit c1a7515393
2 changed files with 70 additions and 36 deletions
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2
drivers/net/wireless/intel/iwlwifi/mvm/constants.h
View File

@ -110,6 +110,8 @@
#define IWL_MVM_SW_TX_CSUM_OFFLOAD 0
#define IWL_MVM_HW_CSUM_DISABLE 0
#define IWL_MVM_PARSE_NVM 0
#define IWL_MVM_ADWELL_ENABLE 1
#define IWL_MVM_ADWELL_MAX_BUDGET 0
#define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE 1
#define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE 2
#define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE_TW 1

104
drivers/net/wireless/intel/iwlwifi/mvm/scan.c
View File

@ -86,6 +86,15 @@ enum iwl_mvm_traffic_load {
#define IWL_SCAN_DWELL_FRAGMENTED 44
#define IWL_SCAN_DWELL_EXTENDED 90
/* adaptive dwell max budget time [TU] for full scan */
#define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300
/* adaptive dwell max budget time [TU] for directed scan */
#define IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN 100
/* adaptive dwell default APs number */
#define IWL_SCAN_ADWELL_DEFAULT_N_APS 2
/* adaptive dwell default APs number in social channels (1, 6, 11) */
#define IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL 10
struct iwl_mvm_scan_timing_params {
u32 suspend_time;
u32 max_out_time;
@ -1115,11 +1124,6 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
{
struct iwl_mvm_scan_timing_params *timing = &scan_timing[params->type];
if (iwl_mvm_is_regular_scan(params))
cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
else
cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_2);
if (iwl_mvm_is_adaptive_dwell_supported(mvm)) {
if (params->measurement_dwell) {
cmd->v7.active_dwell = params->measurement_dwell;
@ -1129,39 +1133,27 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
cmd->v7.passive_dwell = IWL_SCAN_DWELL_PASSIVE;
}
cmd->v7.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
cmd->v7.adwell_default_n_aps_social =
IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL;
cmd->v7.adwell_default_n_aps =
IWL_SCAN_ADWELL_DEFAULT_N_APS;
/* if custom max budget was configured with debugfs */
if (IWL_MVM_ADWELL_MAX_BUDGET)
cmd->v7.adwell_max_budget =
cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET);
else if (params->ssids && params->ssids[0].ssid_len)
cmd->v7.adwell_max_budget =
cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN);
else
cmd->v7.adwell_max_budget =
cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN);
cmd->v7.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
cmd->v7.max_out_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->max_out_time);
cmd->v7.suspend_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->suspend_time);
if (iwl_mvm_is_cdb_supported(mvm)) {
cmd->v7.max_out_time[SCAN_HB_LMAC_IDX] =
cpu_to_le32(timing->max_out_time);
cmd->v7.suspend_time[SCAN_HB_LMAC_IDX] =
cpu_to_le32(timing->suspend_time);
}
return;
}
if (params->measurement_dwell) {
cmd->v1.active_dwell = params->measurement_dwell;
cmd->v1.passive_dwell = params->measurement_dwell;
cmd->v1.extended_dwell = params->measurement_dwell;
} else {
cmd->v1.active_dwell = IWL_SCAN_DWELL_ACTIVE;
cmd->v1.passive_dwell = IWL_SCAN_DWELL_PASSIVE;
cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED;
}
cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
if (iwl_mvm_has_new_tx_api(mvm)) {
cmd->v6.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->max_out_time);
cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->suspend_time);
if (iwl_mvm_is_cdb_supported(mvm)) {
cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] =
cpu_to_le32(timing->max_out_time);
@ -1169,10 +1161,41 @@ static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
cpu_to_le32(timing->suspend_time);
}
} else {
cmd->v1.max_out_time = cpu_to_le32(timing->max_out_time);
cmd->v1.suspend_time = cpu_to_le32(timing->suspend_time);
cmd->v1.scan_priority =
cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
if (params->measurement_dwell) {
cmd->v1.active_dwell = params->measurement_dwell;
cmd->v1.passive_dwell = params->measurement_dwell;
cmd->v1.extended_dwell = params->measurement_dwell;
} else {
cmd->v1.active_dwell = IWL_SCAN_DWELL_ACTIVE;
cmd->v1.passive_dwell = IWL_SCAN_DWELL_PASSIVE;
cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED;
}
cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
if (iwl_mvm_is_cdb_supported(mvm)) {
struct iwl_mvm_scan_timing_params *hb_timing =
&scan_timing[params->type];
cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] =
cpu_to_le32(hb_timing->max_out_time);
cmd->v6.suspend_time[SCAN_HB_LMAC_IDX] =
cpu_to_le32(hb_timing->suspend_time);
}
if (iwl_mvm_has_new_tx_api(mvm)) {
cmd->v6.scan_priority =
cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->max_out_time);
cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] =
cpu_to_le32(timing->suspend_time);
} else {
cmd->v1.scan_priority =
cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
cmd->v1.max_out_time =
cpu_to_le32(timing->max_out_time);
cmd->v1.suspend_time =
cpu_to_le32(timing->suspend_time);
}
}
}
@ -1234,6 +1257,15 @@ static u16 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm,
if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
if (iwl_mvm_is_adaptive_dwell_supported(mvm) && IWL_MVM_ADWELL_ENABLE &&
vif->type != NL80211_IFTYPE_P2P_DEVICE)
flags |= IWL_UMAC_SCAN_GEN_FLAGS_ADAPTIVE_DWELL;
/*
* Extended dwell is relevant only for low band to start with, as it is
* being used for social channles only (1, 6, 11), so we can check
* only scan type on low band also for CDB.
*/
if (iwl_mvm_is_regular_scan(params) &&
vif->type != NL80211_IFTYPE_P2P_DEVICE &&
params->type != IWL_SCAN_TYPE_FRAGMENTED)