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69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright (C) 2024 Intel Corporation
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*/
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#ifndef __iwl_mld_low_latency_h__
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#define __iwl_mld_low_latency_h__
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/**
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* struct iwl_mld_low_latency_packets_counters - Packets counters
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* @lock: synchronize the counting in data path against the worker
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* @vo_vi: per-mac, counts the number of TX and RX voice and video packets
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*/
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struct iwl_mld_low_latency_packets_counters {
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spinlock_t lock;
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u32 vo_vi[NUM_MAC_INDEX_DRIVER];
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} ____cacheline_aligned_in_smp;
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/**
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* enum iwl_mld_low_latency_cause - low-latency set causes
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*
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* @LOW_LATENCY_TRAFFIC: indicates low-latency traffic was detected
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* @LOW_LATENCY_DEBUGFS: low-latency mode set from debugfs
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* @LOW_LATENCY_VIF_TYPE: low-latency mode set because of vif type (AP)
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*/
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enum iwl_mld_low_latency_cause {
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LOW_LATENCY_TRAFFIC = BIT(0),
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LOW_LATENCY_DEBUGFS = BIT(1),
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LOW_LATENCY_VIF_TYPE = BIT(2),
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};
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/**
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* struct iwl_mld_low_latency - Manage low-latency detection and activation.
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* @work: this work is used to detect low-latency by monitoring the number of
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* voice and video packets transmitted in a period of time. If the
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* threshold is reached, low-latency is activated. When active,
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* it is deactivated if the threshold is not reached within a
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* 10-second period.
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* @timestamp: timestamp of the last update.
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* @window_start: per-mac, timestamp of the start of the current window. when
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* the window is over, the counters are reset.
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* @pkts_counters: per-queue array voice/video packet counters
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* @result: per-mac latest low-latency result
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* @stopped: if true, ignore the requests to update the counters
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*/
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struct iwl_mld_low_latency {
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struct wiphy_delayed_work work;
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unsigned long timestamp;
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unsigned long window_start[NUM_MAC_INDEX_DRIVER];
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struct iwl_mld_low_latency_packets_counters *pkts_counters;
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bool result[NUM_MAC_INDEX_DRIVER];
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bool stopped;
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};
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int iwl_mld_low_latency_init(struct iwl_mld *mld);
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void iwl_mld_low_latency_free(struct iwl_mld *mld);
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void iwl_mld_low_latency_restart_cleanup(struct iwl_mld *mld);
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void iwl_mld_vif_update_low_latency(struct iwl_mld *mld,
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struct ieee80211_vif *vif,
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bool low_latency,
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enum iwl_mld_low_latency_cause cause);
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void iwl_mld_low_latency_update_counters(struct iwl_mld *mld,
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struct ieee80211_hdr *hdr,
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struct ieee80211_sta *sta,
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u8 queue);
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void iwl_mld_low_latency_stop(struct iwl_mld *mld);
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void iwl_mld_low_latency_restart(struct iwl_mld *mld);
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#endif /* __iwl_mld_low_latency_h__ */
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