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authorAvraham Stern <avraham.stern@intel.com>2024-05-27 19:05:56 +0300
committerJohannes Berg <johannes.berg@intel.com>2024-05-29 10:33:11 +0200
commit0e49e940d1bc47e5f8937aa981337debaae69bd8 (patch)
tree3511b349d1360e61f8142019d86e569825f3ade3 /drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
parenta92fd2d9327ba877f29753eec15b93072ac300b0 (diff)
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 <avraham.stern@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240527190228.b197b4f3f9ed.I578ee916d5f517a2e3a89e890a8ea24065946427@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c8
1 files changed, 8 insertions, 0 deletions
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,