This enables HW offloading amsdu/de-amsdu support for 802.11s mesh
interface.
Co-developed-by: Bo Jiao <bo.jiao@xxxxxxxxxxxx>
Signed-off-by: Bo Jiao <bo.jiao@xxxxxxxxxxxx>
Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
---
.../net/wireless/mediatek/mt76/mt7996/mac.c | 24 ++++++++++++-------
.../net/wireless/mediatek/mt76/mt7996/mac.h | 2 ++
.../net/wireless/mediatek/mt76/mt7996/mcu.c | 7 ++++++
.../net/wireless/mediatek/mt76/mt7996/mcu.h | 2 +-
.../net/wireless/mediatek/mt76/mt7996/mmio.c | 1 +
5 files changed, 27 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index 3c3506c7c87a..3d8332d502b3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -632,6 +632,8 @@ mt7996_mac_fill_rx(struct mt7996_dev *dev, struct sk_buff *skb)
u32 rxd4 = le32_to_cpu(rxd[4]);
u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM;
u32 csum_status = *(u32 *)skb->cb;
+ u32 mesh_mask = MT_RXD0_MESH | MT_RXD0_MHCP;
+ bool is_mesh = (rxd0 & mesh_mask) == mesh_mask;
bool unicast, insert_ccmp_hdr = false;
u8 remove_pad, amsdu_info, band_idx;
u8 mode = 0, qos_ctl = 0;
@@ -823,19 +825,16 @@ mt7996_mac_fill_rx(struct mt7996_dev *dev, struct sk_buff *skb)
int pad_start = 0;
skb_pull(skb, hdr_gap);
- if (!hdr_trans && status->amsdu) {
+ if (!hdr_trans && status->amsdu && !(ieee80211_has_a4(fc) && is_mesh)) {
pad_start = ieee80211_get_hdrlen_from_skb(skb);
- } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) {
+ } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR) &&
+ get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q) {
/* When header translation failure is indicated,
* the hardware will insert an extra 2-byte field
* containing the data length after the protocol
* type field.
*/
- pad_start = 12;
- if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q)
- pad_start += 4;
- else
- pad_start = 0;
+ pad_start = 16;
}
if (pad_start) {
@@ -856,8 +855,17 @@ mt7996_mac_fill_rx(struct mt7996_dev *dev, struct sk_buff *skb)
hdr = mt76_skb_get_hdr(skb);
fc = hdr->frame_control;
if (ieee80211_is_data_qos(fc)) {
+ u8 *qos = ieee80211_get_qos_ctl(hdr);
+
seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
- qos_ctl = *ieee80211_get_qos_ctl(hdr);
+ qos_ctl = *qos;
+
+ /* Mesh DA/SA/Length will be stripped after hardware
+ * de-amsdu, so here needs to clear amsdu present bit
+ * to mark it as a normal mesh frame.
+ */
+ if (ieee80211_has_a4(fc) && is_mesh && status->amsdu)
+ *qos &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
}
} else {
status->flag |= RX_FLAG_8023;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.h b/drivers/net/wireless/mediatek/mt76/mt7996/mac.h
index 2cc218f735d8..d6b1ee994b54 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.h
@@ -12,6 +12,8 @@
#define MT_RXD0_LENGTH GENMASK(15, 0)
#define MT_RXD0_PKT_TYPE GENMASK(31, 27)
+#define MT_RXD0_MESH BIT(18)
+#define MT_RXD0_MHCP BIT(19)
#define MT_RXD0_NORMAL_ETH_TYPE_OFS GENMASK(22, 16)
#define MT_RXD0_NORMAL_IP_SUM BIT(23)
#define MT_RXD0_NORMAL_UDP_TCP_SUM BIT(24)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index 8ad51cbfdbe8..b5ce335056e8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -1022,6 +1022,7 @@ mt7996_mcu_sta_amsdu_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
struct tlv *tlv;
if (vif->type != NL80211_IFTYPE_STATION &&
+ vif->type != NL80211_IFTYPE_MESH_POINT &&
vif->type != NL80211_IFTYPE_AP)
return;
@@ -1471,6 +1472,12 @@ mt7996_mcu_sta_hdr_trans_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
hdr_trans->to_ds = true;
hdr_trans->from_ds = true;
}
+
+ if (vif->type == NL80211_IFTYPE_MESH_POINT) {
+ hdr_trans->to_ds = true;
+ hdr_trans->from_ds = true;
+ hdr_trans->mesh = true;
+ }
}
static enum mcu_mmps_mode
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h
index dd0c5ac52703..009f5f06042e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h
@@ -396,7 +396,7 @@ struct sta_rec_hdr_trans {
u8 from_ds;
u8 to_ds;
u8 dis_rx_hdr_tran;
- u8 rsv;
+ u8 mesh;
} __packed;
struct hdr_trans_en {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
index 902370a2a639..61e42d71810d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
@@ -320,6 +320,7 @@ struct mt7996_dev *mt7996_mmio_probe(struct device *pdev,
/* txwi_size = txd size + txp size */
.txwi_size = MT_TXD_SIZE + sizeof(struct mt76_connac_fw_txp),
.drv_flags = MT_DRV_TXWI_NO_FREE |
+ MT_DRV_AMSDU_OFFLOAD |
MT_DRV_HW_MGMT_TXQ,
.survey_flags = SURVEY_INFO_TIME_TX |
SURVEY_INFO_TIME_RX |
--
2.18.0
