From 0e49e940d1bc47e5f8937aa981337debaae69bd8 Mon Sep 17 00:00:00 2001 From: Avraham Stern Date: Mon, 27 May 2024 19:05:56 +0300 Subject: wifi: iwlwifi: mvm: add an option to use ptp clock for rx timestamp Add a debugfs option to use the ptp clock time for rx device timestamps. This can be useful to e.g. synchronize multiple NICs or reporting the timestamp in the system clock instead of gp2. Signed-off-by: Avraham Stern Reviewed-by: Gregory Greenman Signed-off-by: Miri Korenblit Link: https://msgid.link/20240527190228.b197b4f3f9ed.I578ee916d5f517a2e3a89e890a8ea24065946427@changeid Signed-off-by: Johannes Berg --- drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c') diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index 2f9e2254fb46..5af169f3d708 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -1954,6 +1954,14 @@ static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm, iwl_mvm_decode_lsig(skb, phy_data); rx_status->device_timestamp = phy_data->gp2_on_air_rise; + + if (mvm->rx_ts_ptp && mvm->monitor_on) { + u64 adj_time = + iwl_mvm_ptp_get_adj_time(mvm, phy_data->gp2_on_air_rise * NSEC_PER_USEC); + + rx_status->device_timestamp = div64_u64(adj_time, NSEC_PER_USEC); + } + rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel, rx_status->band); iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, -- cgit