Commit 3b23c184 authored by Thomas Pedersen's avatar Thomas Pedersen Committed by Johannes Berg
Browse files

mac80211: add freq_offset to RX status



RX status needs a KHz component, so add freq_offset. We
can reduce the bits for the frequency since 60 GHz isn't
supported.

Signed-off-by: default avatarThomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20200402011810.22947-5-thomas@adapt-ip.com


[fix commit message]
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent b6011960
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+9 −1
Original line number Diff line number Diff line
@@ -1335,6 +1335,7 @@ enum mac80211_rx_encoding {
 * @freq: frequency the radio was tuned to when receiving this frame, in MHz
 *	This field must be set for management frames, but isn't strictly needed
 *	for data (other) frames - for those it only affects radiotap reporting.
 * @freq_offset: @freq has a positive offset of 500Khz.
 * @signal: signal strength when receiving this frame, either in dBm, in dB or
 *	unspecified depending on the hardware capabilities flags
 *	@IEEE80211_HW_SIGNAL_*
@@ -1365,7 +1366,7 @@ struct ieee80211_rx_status {
	u32 device_timestamp;
	u32 ampdu_reference;
	u32 flag;
	u16 freq;
	u16 freq: 13, freq_offset: 1;
	u8 enc_flags;
	u8 encoding:2, bw:3, he_ru:3;
	u8 he_gi:2, he_dcm:1;
@@ -1381,6 +1382,13 @@ struct ieee80211_rx_status {
	u8 zero_length_psdu_type;
};

static inline u32
ieee80211_rx_status_to_khz(struct ieee80211_rx_status *rx_status)
{
	return MHZ_TO_KHZ(rx_status->freq) +
	       (rx_status->freq_offset ? 500 : 0);
}

/**
 * struct ieee80211_vendor_radiotap - vendor radiotap data information
 * @present: presence bitmap for this vendor namespace
+4 −2
Original line number Diff line number Diff line
@@ -3683,7 +3683,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,

	sdata_assert_lock(sdata);

	channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
	channel = ieee80211_get_channel_khz(local->hw.wiphy,
					ieee80211_rx_status_to_khz(rx_status));
	if (!channel)
		return;

@@ -3899,7 +3900,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
		return;
	}

	if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
	if (ieee80211_rx_status_to_khz(rx_status) !=
	    ieee80211_channel_to_khz(chanctx_conf->def.chan)) {
		rcu_read_unlock();
		return;
	}
+1 −0
Original line number Diff line number Diff line
@@ -412,6 +412,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
	pos++;

	/* IEEE80211_RADIOTAP_CHANNEL */
	/* TODO: frequency offset in KHz */
	put_unaligned_le16(status->freq, pos);
	pos += 2;
	if (status->bw == RATE_INFO_BW_10)
+2 −1
Original line number Diff line number Diff line
@@ -275,7 +275,8 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
			return;
	}

	channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
	channel = ieee80211_get_channel_khz(local->hw.wiphy,
					ieee80211_rx_status_to_khz(rx_status));

	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
		return;