From: Benjamin Lin Date: Fri, 16 Aug 2024 09:46:34 +0000 (+0800) Subject: wifi: mt76: connac: add IEEE 802.11 fragmentation support for mt7996 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=5353679ab4ada1112ff96e81c08650dd01699050;p=users%2Fjedix%2Flinux-maple.git 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: Benjamin Lin Signed-off-by: Shayne Chen Link: https://patch.msgid.link/20240816094635.2391-10-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h b/drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h index 353e66069840..3fc94bd7271f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h @@ -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) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index bc7111a71f98..60446dc2a3b3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -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;