diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/373-mac80211-support-Rx-timestamp-calculation-for-all-pr.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/373-mac80211-support-Rx-timestamp-calculation-for-all-pr.patch | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/package/kernel/mac80211/patches/subsys/373-mac80211-support-Rx-timestamp-calculation-for-all-pr.patch b/package/kernel/mac80211/patches/subsys/373-mac80211-support-Rx-timestamp-calculation-for-all-pr.patch deleted file mode 100644 index 117fb35fcf..0000000000 --- a/package/kernel/mac80211/patches/subsys/373-mac80211-support-Rx-timestamp-calculation-for-all-pr.patch +++ /dev/null @@ -1,134 +0,0 @@ -From: Avraham Stern <avraham.stern@intel.com> -Date: Sun, 6 Dec 2020 14:54:45 +0200 -Subject: [PATCH] mac80211: support Rx timestamp calculation for all preamble - types - -Add support for calculating the Rx timestamp for HE frames. -Since now all frame types are supported, allow setting the Rx -timestamp regardless of the frame type. - -Signed-off-by: Avraham Stern <avraham.stern@intel.com> -Signed-off-by: Luca Coelho <luciano.coelho@intel.com> -Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4786559af475.Ia54486bb0a12e5351f9d5c60ef6fcda7c9e7141c@changeid -Signed-off-by: Johannes Berg <johannes.berg@intel.com> ---- - ---- a/net/mac80211/ieee80211_i.h -+++ b/net/mac80211/ieee80211_i.h -@@ -1587,13 +1587,8 @@ ieee80211_have_rx_timestamp(struct ieee8 - { - WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && - status->flag & RX_FLAG_MACTIME_END); -- if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END)) -- return true; -- /* can't handle non-legacy preamble yet */ -- if (status->flag & RX_FLAG_MACTIME_PLCP_START && -- status->encoding == RX_ENC_LEGACY) -- return true; -- return false; -+ return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END | -+ RX_FLAG_MACTIME_PLCP_START)); - } - - void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); ---- a/net/mac80211/util.c -+++ b/net/mac80211/util.c -@@ -3665,6 +3665,7 @@ u64 ieee80211_calculate_rx_timestamp(str - u64 ts = status->mactime; - struct rate_info ri; - u16 rate; -+ u8 n_ltf; - - if (WARN_ON(!ieee80211_have_rx_timestamp(status))) - return 0; -@@ -3675,11 +3676,58 @@ u64 ieee80211_calculate_rx_timestamp(str - - /* Fill cfg80211 rate info */ - switch (status->encoding) { -+ case RX_ENC_HE: -+ ri.flags |= RATE_INFO_FLAGS_HE_MCS; -+ ri.mcs = status->rate_idx; -+ ri.nss = status->nss; -+ ri.he_ru_alloc = status->he_ru; -+ if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) -+ ri.flags |= RATE_INFO_FLAGS_SHORT_GI; -+ -+ /* -+ * See P802.11ax_D6.0, section 27.3.4 for -+ * VHT PPDU format. -+ */ -+ if (status->flag & RX_FLAG_MACTIME_PLCP_START) { -+ mpdu_offset += 2; -+ ts += 36; -+ -+ /* -+ * TODO: -+ * For HE MU PPDU, add the HE-SIG-B. -+ * For HE ER PPDU, add 8us for the HE-SIG-A. -+ * For HE TB PPDU, add 4us for the HE-STF. -+ * Add the HE-LTF durations - variable. -+ */ -+ } -+ -+ break; - case RX_ENC_HT: - ri.mcs = status->rate_idx; - ri.flags |= RATE_INFO_FLAGS_MCS; - if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) - ri.flags |= RATE_INFO_FLAGS_SHORT_GI; -+ -+ /* -+ * See P802.11REVmd_D3.0, section 19.3.2 for -+ * HT PPDU format. -+ */ -+ if (status->flag & RX_FLAG_MACTIME_PLCP_START) { -+ mpdu_offset += 2; -+ if (status->enc_flags & RX_ENC_FLAG_HT_GF) -+ ts += 24; -+ else -+ ts += 32; -+ -+ /* -+ * Add Data HT-LTFs per streams -+ * TODO: add Extension HT-LTFs, 4us per LTF -+ */ -+ n_ltf = ((ri.mcs >> 3) & 3) + 1; -+ n_ltf = n_ltf == 3 ? 4 : n_ltf; -+ ts += n_ltf * 4; -+ } -+ - break; - case RX_ENC_VHT: - ri.flags |= RATE_INFO_FLAGS_VHT_MCS; -@@ -3687,6 +3735,23 @@ u64 ieee80211_calculate_rx_timestamp(str - ri.nss = status->nss; - if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) - ri.flags |= RATE_INFO_FLAGS_SHORT_GI; -+ -+ /* -+ * See P802.11REVmd_D3.0, section 21.3.2 for -+ * VHT PPDU format. -+ */ -+ if (status->flag & RX_FLAG_MACTIME_PLCP_START) { -+ mpdu_offset += 2; -+ ts += 36; -+ -+ /* -+ * Add VHT-LTFs per streams -+ */ -+ n_ltf = (ri.nss != 1) && (ri.nss % 2) ? -+ ri.nss + 1 : ri.nss; -+ ts += 4 * n_ltf; -+ } -+ - break; - default: - WARN_ON(1); -@@ -3710,7 +3775,6 @@ u64 ieee80211_calculate_rx_timestamp(str - ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); - - if (status->flag & RX_FLAG_MACTIME_PLCP_START) { -- /* TODO: handle HT/VHT preambles */ - if (status->band == NL80211_BAND_5GHZ) { - ts += 20 << shift; - mpdu_offset += 2; |