Commit 5353679a authored by Benjamin Lin's avatar Benjamin Lin Committed by Felix Fietkau
Browse files

wifi: mt76: connac: add IEEE 802.11 fragmentation support for mt7996 



Add fragment index into TXD.DW2 to support IEEE 802.11 fragmentation.

Signed-off-by: default avatarBenjamin Lin <benjamin-jw.lin@mediatek.com>
Signed-off-by: default avatarShayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20240816094635.2391-10-shayne.chen@mediatek.com


Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent ded1a6d9

drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h

+7 −0
Original line number Diff line number Diff line
@@ -197,6 +197,13 @@ enum tx_mgnt_type { 
	MT_TX_ADDBA,

};



enum tx_frag_idx {

	MT_TX_FRAG_NONE,

	MT_TX_FRAG_FIRST,

	MT_TX_FRAG_MID,

	MT_TX_FRAG_LAST

};



#define MT_CT_INFO_APPLY_TXD		BIT(0)

#define MT_CT_INFO_COPY_HOST_TXD_ALL	BIT(1)

#define MT_CT_INFO_MGMT_FRAME		BIT(2)

drivers/net/wireless/mediatek/mt76/mt7996/mac.c

+11 −2
Original line number Diff line number Diff line
@@ -746,7 +746,7 @@ mt7996_mac_write_txwi_80211(struct mt7996_dev *dev, __le32 *txwi, 
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);

	bool multicast = is_multicast_ether_addr(hdr->addr1);

	u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;

	__le16 fc = hdr->frame_control;

	__le16 fc = hdr->frame_control, sc = hdr->seq_ctrl;

	u8 fc_type, fc_stype;

	u32 val;
@@ -780,6 +780,15 @@ mt7996_mac_write_txwi_80211(struct mt7996_dev *dev, __le32 *txwi, 
	val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |

	      FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype);



	if (ieee80211_has_morefrags(fc) && ieee80211_is_first_frag(sc))

		val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_FIRST);

	else if (ieee80211_has_morefrags(fc) && !ieee80211_is_first_frag(sc))

		val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_MID);

	else if (!ieee80211_has_morefrags(fc) && !ieee80211_is_first_frag(sc))

		val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_LAST);

	else

		val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_NONE);



	txwi[2] |= cpu_to_le32(val);



	txwi[3] |= cpu_to_le32(FIELD_PREP(MT_TXD3_BCM, multicast));
@@ -789,7 +798,7 @@ mt7996_mac_write_txwi_80211(struct mt7996_dev *dev, __le32 *txwi, 
	}



	if (info->flags & IEEE80211_TX_CTL_INJECTED) {

		u16 seqno = le16_to_cpu(hdr->seq_ctrl);

		u16 seqno = le16_to_cpu(sc);



		if (ieee80211_is_back_req(hdr->frame_control)) {

			struct ieee80211_bar *bar;