diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mld/low_latency.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mld/low_latency.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/low_latency.h b/drivers/net/wireless/intel/iwlwifi/mld/low_latency.h new file mode 100644 index 000000000000..f59684d235af --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mld/low_latency.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright (C) 2024 Intel Corporation + */ +#ifndef __iwl_mld_low_latency_h__ +#define __iwl_mld_low_latency_h__ + +/** + * struct iwl_mld_low_latency_packets_counters - Packets counters + * @lock: synchronize the counting in data path against the worker + * @vo_vi: per-mac, counts the number of TX and RX voice and video packets + */ +struct iwl_mld_low_latency_packets_counters { + spinlock_t lock; + u32 vo_vi[NUM_MAC_INDEX_DRIVER]; +} ____cacheline_aligned_in_smp; + +/** + * enum iwl_mld_low_latency_cause - low-latency set causes + * + * @LOW_LATENCY_TRAFFIC: indicates low-latency traffic was detected + * @LOW_LATENCY_DEBUGFS: low-latency mode set from debugfs + * @LOW_LATENCY_VIF_TYPE: low-latency mode set because of vif type (AP) + */ +enum iwl_mld_low_latency_cause { + LOW_LATENCY_TRAFFIC = BIT(0), + LOW_LATENCY_DEBUGFS = BIT(1), + LOW_LATENCY_VIF_TYPE = BIT(2), +}; + +/** + * struct iwl_mld_low_latency - Manage low-latency detection and activation. + * @work: this work is used to detect low-latency by monitoring the number of + * voice and video packets transmitted in a period of time. If the + * threshold is reached, low-latency is activated. When active, + * it is deactivated if the threshold is not reached within a + * 10-second period. + * @timestamp: timestamp of the last update. + * @window_start: per-mac, timestamp of the start of the current window. when + * the window is over, the counters are reset. + * @pkts_counters: per-queue array voice/video packet counters + * @result: per-mac latest low-latency result + * @stopped: if true, ignore the requests to update the counters + */ +struct iwl_mld_low_latency { + struct wiphy_delayed_work work; + unsigned long timestamp; + unsigned long window_start[NUM_MAC_INDEX_DRIVER]; + struct iwl_mld_low_latency_packets_counters *pkts_counters; + bool result[NUM_MAC_INDEX_DRIVER]; + bool stopped; +}; + +int iwl_mld_low_latency_init(struct iwl_mld *mld); +void iwl_mld_low_latency_free(struct iwl_mld *mld); +void iwl_mld_low_latency_restart_cleanup(struct iwl_mld *mld); +void iwl_mld_vif_update_low_latency(struct iwl_mld *mld, + struct ieee80211_vif *vif, + bool low_latency, + enum iwl_mld_low_latency_cause cause); +void iwl_mld_low_latency_update_counters(struct iwl_mld *mld, + struct ieee80211_hdr *hdr, + struct ieee80211_sta *sta, + u8 queue); +void iwl_mld_low_latency_stop(struct iwl_mld *mld); +void iwl_mld_low_latency_restart(struct iwl_mld *mld); + +#endif /* __iwl_mld_low_latency_h__ */ |