5.14.5

1 files changed, 187 insertions, 0 deletions

diff --git a/sys-kernel_arch-sources-g14_files-8022-mt76-mt7921-report-HE-MU-radiotap.patch b/sys-kernel_arch-sources-g14_files-8022-mt76-mt7921-report-HE-MU-radiotap.patch
new file mode 100644
index 000000000000..ebb44077b5f8
--- /dev/null
+++ b/sys-kernel_arch-sources-g14_files-8022-mt76-mt7921-report-HE-MU-radiotap.patch
@@ -0,0 +1,187 @@
+From: <sean.wang@mediatek.com>
+To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com>
+CC: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>,
+ <YN.Chen@mediatek.com>, <Leon.Yen@mediatek.com>,
+ <Eric-SY.Chang@mediatek.com>, <Deren.Wu@mediatek.com>, <km.lin@mediatek.com>,
+ <robin.chiu@mediatek.com>, <ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
+ <Eric.Liang@mediatek.com>, <Stella.Chang@mediatek.com>, <jemele@google.com>,
+ <yenlinlai@google.com>, <linux-wireless@vger.kernel.org>,
+ <linux-mediatek@lists.infradead.org>, Ryder Lee <ryder.lee@mediatek.com>
+Subject: [PATCH] mt76: mt7921: report HE MU radiotap
+Date: Fri, 13 Aug 2021 06:48:24 +0800
+
+From: Sean Wang <sean.wang@mediatek.com>
+
+Report HE MU/BF radiotap.
+
+That fixed HE MU packets dropped by mac80211 because they are missing the
+ieee80211_radiotap_he_mu header.
+
+Fixes: 163f4d22c118d ("mt76: mt7921: add MAC support")
+Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
+Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
+Co-developed-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
+Signed-off-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
+Tested-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+---
+ .../net/wireless/mediatek/mt76/mt7921/mac.c   | 65 ++++++++++++++++---
+ .../net/wireless/mediatek/mt76/mt7921/mac.h   |  8 +++
+ 2 files changed, 65 insertions(+), 8 deletions(-)
+
+diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+index 296e0f7a1d14..7ee9ef2fb9f0 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
++++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+@@ -180,12 +180,56 @@ mt7921_mac_decode_he_radiotap_ru(struct mt76_rx_status *status,
+ 				      IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
+ }
+ 
++static void
++mt7921_mac_decode_he_mu_radiotap(struct sk_buff *skb,
++				 struct mt76_rx_status *status,
++				 __le32 *rxv)
++{
++	static const struct ieee80211_radiotap_he_mu mu_known = {
++		.flags1 = HE_BITS(MU_FLAGS1_SIG_B_MCS_KNOWN) |
++			  HE_BITS(MU_FLAGS1_SIG_B_DCM_KNOWN) |
++			  HE_BITS(MU_FLAGS1_CH1_RU_KNOWN) |
++			  HE_BITS(MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN) |
++			  HE_BITS(MU_FLAGS1_SIG_B_COMP_KNOWN),
++		.flags2 = HE_BITS(MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN) |
++			  HE_BITS(MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN),
++	};
++	struct ieee80211_radiotap_he_mu *he_mu = NULL;
++
++	he_mu = skb_push(skb, sizeof(mu_known));
++	memcpy(he_mu, &mu_known, sizeof(mu_known));
++
++#define MU_PREP(f, v)	le16_encode_bits(v, IEEE80211_RADIOTAP_HE_MU_##f)
++
++	he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_MCS, status->rate_idx);
++	if (status->he_dcm)
++		he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_DCM, status->he_dcm);
++
++	he_mu->flags2 |= MU_PREP(FLAGS2_BW_FROM_SIG_A_BW, status->bw) |
++			 MU_PREP(FLAGS2_SIG_B_SYMS_USERS,
++				 le32_get_bits(rxv[2], MT_CRXV_HE_NUM_USER));
++
++	he_mu->ru_ch1[0] = FIELD_GET(MT_CRXV_HE_RU0, cpu_to_le32(rxv[3]));
++
++	if (status->bw >= RATE_INFO_BW_40) {
++		he_mu->flags1 |= HE_BITS(MU_FLAGS1_CH2_RU_KNOWN);
++		he_mu->ru_ch2[0] =
++			FIELD_GET(MT_CRXV_HE_RU1, cpu_to_le32(rxv[3]));
++	}
++
++	if (status->bw >= RATE_INFO_BW_80) {
++		he_mu->ru_ch1[1] =
++			FIELD_GET(MT_CRXV_HE_RU2, cpu_to_le32(rxv[3]));
++		he_mu->ru_ch2[1] =
++			FIELD_GET(MT_CRXV_HE_RU3, cpu_to_le32(rxv[3]));
++	}
++}
++
+ static void
+ mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
+ 			      struct mt76_rx_status *status,
+ 			      __le32 *rxv, u32 phy)
+ {
+-	/* TODO: struct ieee80211_radiotap_he_mu */
+ 	static const struct ieee80211_radiotap_he known = {
+ 		.data1 = HE_BITS(DATA1_DATA_MCS_KNOWN) |
+ 			 HE_BITS(DATA1_DATA_DCM_KNOWN) |
+@@ -193,6 +237,7 @@ mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
+ 			 HE_BITS(DATA1_CODING_KNOWN) |
+ 			 HE_BITS(DATA1_LDPC_XSYMSEG_KNOWN) |
+ 			 HE_BITS(DATA1_DOPPLER_KNOWN) |
++			 HE_BITS(DATA1_SPTL_REUSE_KNOWN) |
+ 			 HE_BITS(DATA1_BSS_COLOR_KNOWN),
+ 		.data2 = HE_BITS(DATA2_GI_KNOWN) |
+ 			 HE_BITS(DATA2_TXBF_KNOWN) |
+@@ -207,9 +252,12 @@ mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
+ 
+ 	he->data3 = HE_PREP(DATA3_BSS_COLOR, BSS_COLOR, rxv[14]) |
+ 		    HE_PREP(DATA3_LDPC_XSYMSEG, LDPC_EXT_SYM, rxv[2]);
++	he->data4 = HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]);
+ 	he->data5 = HE_PREP(DATA5_PE_DISAMBIG, PE_DISAMBIG, rxv[2]) |
+ 		    le16_encode_bits(ltf_size,
+ 				     IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
++	if (cpu_to_le32(rxv[0]) & MT_PRXV_TXBF)
++		he->data5 |= HE_BITS(DATA5_TXBF);
+ 	he->data6 = HE_PREP(DATA6_TXOP, TXOP_DUR, rxv[14]) |
+ 		    HE_PREP(DATA6_DOPPLER, DOPPLER, rxv[14]);
+ 
+@@ -217,8 +265,7 @@ mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
+ 	case MT_PHY_TYPE_HE_SU:
+ 		he->data1 |= HE_BITS(DATA1_FORMAT_SU) |
+ 			     HE_BITS(DATA1_UL_DL_KNOWN) |
+-			     HE_BITS(DATA1_BEAM_CHANGE_KNOWN) |
+-			     HE_BITS(DATA1_SPTL_REUSE_KNOWN);
++			     HE_BITS(DATA1_BEAM_CHANGE_KNOWN);
+ 
+ 		he->data3 |= HE_PREP(DATA3_BEAM_CHANGE, BEAM_CHNG, rxv[14]) |
+ 			     HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]);
+@@ -232,17 +279,15 @@ mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
+ 		break;
+ 	case MT_PHY_TYPE_HE_MU:
+ 		he->data1 |= HE_BITS(DATA1_FORMAT_MU) |
+-			     HE_BITS(DATA1_UL_DL_KNOWN) |
+-			     HE_BITS(DATA1_SPTL_REUSE_KNOWN);
++			     HE_BITS(DATA1_UL_DL_KNOWN);
+ 
+ 		he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]);
+-		he->data4 |= HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]);
++		he->data4 |= HE_PREP(DATA4_MU_STA_ID, MU_AID, rxv[7]);
+ 
+ 		mt7921_mac_decode_he_radiotap_ru(status, he, rxv);
+ 		break;
+ 	case MT_PHY_TYPE_HE_TB:
+ 		he->data1 |= HE_BITS(DATA1_FORMAT_TRIG) |
+-			     HE_BITS(DATA1_SPTL_REUSE_KNOWN) |
+ 			     HE_BITS(DATA1_SPTL_REUSE2_KNOWN) |
+ 			     HE_BITS(DATA1_SPTL_REUSE3_KNOWN) |
+ 			     HE_BITS(DATA1_SPTL_REUSE4_KNOWN);
+@@ -606,9 +651,13 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
+ 
+ 	mt7921_mac_assoc_rssi(dev, skb);
+ 
+-	if (rxv && status->flag & RX_FLAG_RADIOTAP_HE)
++	if (rxv && status->flag & RX_FLAG_RADIOTAP_HE) {
+ 		mt7921_mac_decode_he_radiotap(skb, status, rxv, mode);
+ 
++		if (status->flag & RX_FLAG_RADIOTAP_HE_MU)
++			mt7921_mac_decode_he_mu_radiotap(skb, status, rxv);
++	}
++
+ 	if (!status->wcid || !ieee80211_is_data_qos(fc))
+ 		return 0;
+ 
+diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
+index 3af67fac213d..f0194c878037 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
++++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
+@@ -116,6 +116,7 @@ enum rx_pkt_type {
+ #define MT_PRXV_TX_DCM			BIT(4)
+ #define MT_PRXV_TX_ER_SU_106T		BIT(5)
+ #define MT_PRXV_NSTS			GENMASK(9, 7)
++#define MT_PRXV_TXBF			BIT(10)
+ #define MT_PRXV_HT_AD_CODE		BIT(11)
+ #define MT_PRXV_FRAME_MODE		GENMASK(14, 12)
+ #define MT_PRXV_SGI			GENMASK(16, 15)
+@@ -138,8 +139,15 @@ enum rx_pkt_type {
+ #define MT_CRXV_HE_LTF_SIZE		GENMASK(18, 17)
+ #define MT_CRXV_HE_LDPC_EXT_SYM		BIT(20)
+ #define MT_CRXV_HE_PE_DISAMBIG		BIT(23)
++#define MT_CRXV_HE_NUM_USER		GENMASK(30, 24)
+ #define MT_CRXV_HE_UPLINK		BIT(31)
+ 
++#define MT_CRXV_HE_RU0			GENMASK(7, 0)
++#define MT_CRXV_HE_RU1			GENMASK(15, 8)
++#define MT_CRXV_HE_RU2			GENMASK(23, 16)
++#define MT_CRXV_HE_RU3			GENMASK(31, 24)
++#define MT_CRXV_HE_MU_AID		GENMASK(30, 20)
++
+ #define MT_CRXV_HE_SR_MASK		GENMASK(11, 8)
+ #define MT_CRXV_HE_SR1_MASK		GENMASK(16, 12)
+ #define MT_CRXV_HE_SR2_MASK             GENMASK(20, 17)