2021-06-17 20:40:00

by Ryder Lee

[permalink] [raw]
Subject: [PATCH 1/4] mac80211: check per vif offload_flags in Tx path

offload_flags has been introduced to indicate encap status of each interface.
An interface can encap offload at runtime, or if it has some extra limitations
it can simply override the flags, so it's more flexible to check offload_flags
in Tx path.

Signed-off-by: Ryder Lee <[email protected]>
---
net/mac80211/tx.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 0a4bc9e08637..8cb1289c704a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3267,6 +3267,9 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
return false;

+ if (sdata->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)
+ return false;
+
if (skb_is_gso(skb))
return false;

@@ -3695,7 +3698,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
}

if (skb_has_frag_list(skb) &&
- !ieee80211_hw_check(&local->hw, TX_FRAG_LIST)) {
+ (!ieee80211_hw_check(&local->hw, TX_FRAG_LIST) ||
+ vif->offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)) {
if (skb_linearize(skb)) {
ieee80211_free_txskb(&local->hw, skb);
goto begin;
--
2.18.0


2021-06-17 20:40:00

by Ryder Lee

[permalink] [raw]
Subject: [PATCH 4/4] mt76: mt7615: add 802.11 encap offload support

It is currently limited to AP interfaces. 3-address mode STA interface
can either work by adding IEEE80211_OFFLOAD_ENCAP_ENABLED back into
vif->offload_flags, but just note that this breaks 4-address mode.

Signed-off-by: Ryder Lee <[email protected]>
---
This depends on https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/
---
.../net/wireless/mediatek/mt76/mt7615/init.c | 1 +
.../net/wireless/mediatek/mt76/mt7615/mac.c | 189 ++++++++++++------
.../net/wireless/mediatek/mt76/mt7615/mac.h | 1 +
.../net/wireless/mediatek/mt76/mt7615/main.c | 3 +
.../net/wireless/mediatek/mt76/mt7615/mcu.c | 4 +-
.../wireless/mediatek/mt76/mt7615/pci_mac.c | 6 +-
.../wireless/mediatek/mt76/mt7615/usb_sdio.c | 3 +
7 files changed, 141 insertions(+), 66 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 36c9e527bb9a..5cff7a748470 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -398,6 +398,7 @@ mt7615_init_wiphy(struct ieee80211_hw *hw)
ieee80211_hw_set(hw, TX_STATUS_NO_AMPDU_LEN);
ieee80211_hw_set(hw, WANT_MONITOR_VIF);
ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
+ ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);

if (is_mt7615(&phy->dev->mt76))
hw->max_tx_fragments = MT_TXP_MAX_BUF_NUM;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index f43df43512a8..9123a5611b5e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -607,24 +607,128 @@ mt7615_mac_tx_rate_val(struct mt7615_dev *dev,
return rateval;
}

+static void
+mt7615_mac_write_txwi_8023(struct mt7615_dev *dev, __le32 *txwi,
+ struct sk_buff *skb, struct mt76_wcid *wcid)
+{
+
+ bool is_mmio = mt76_is_mmio(&dev->mt76);
+ u8 fc_type, fc_stype;
+ bool wmm = false;
+ u32 val;
+
+ if (wcid->sta) {
+ struct ieee80211_sta *sta;
+
+ sta = container_of((void *)wcid, struct ieee80211_sta, drv_priv);
+ wmm = sta->wme;
+ }
+
+ val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3);
+ if (be16_to_cpu(skb->protocol) >= ETH_P_802_3_MIN)
+ val |= MT_TXD1_ETH_802_3;
+
+ txwi[1] |= cpu_to_le32(val);
+
+ fc_type = IEEE80211_FTYPE_DATA >> 2;
+ fc_stype = wmm ? IEEE80211_STYPE_QOS_DATA >> 4 : 0;
+
+ val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype);
+ txwi[2] |= cpu_to_le32(val);
+
+ val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
+ txwi[7] |= cpu_to_le32(val);
+
+ if (!is_mmio) {
+ val = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+ txwi[8] |= cpu_to_le32(val);
+ }
+}
+
+static void
+mt7615_mac_write_txwi_80211(struct mt7615_dev *dev, __le32 *txwi,
+ struct sk_buff *skb, struct ieee80211_key_conf *key)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ bool multicast = is_multicast_ether_addr(hdr->addr1);
+ bool is_mmio = mt76_is_mmio(&dev->mt76);
+ __le16 fc = hdr->frame_control;
+ u8 fc_type, fc_stype;
+ u32 val;
+
+ val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) |
+ FIELD_PREP(MT_TXD1_HDR_INFO,
+ ieee80211_get_hdrlen_from_skb(skb) / 2);
+ txwi[1] |= cpu_to_le32(val);
+
+ fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2;
+ fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4;
+
+ val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype) |
+ FIELD_PREP(MT_TXD2_MULTICAST, multicast);
+
+ if (key && multicast && ieee80211_is_robust_mgmt_frame(skb) &&
+ key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+ val |= MT_TXD2_BIP;
+ txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME);
+ }
+
+ txwi[2] |= cpu_to_le32(val);
+
+ if (ieee80211_is_beacon(fc)) {
+ val = MT_TXD5_TX_STATUS_HOST | MT_TXD5_SW_POWER_MGMT |
+ MT_TXD5_PID;
+ txwi[5] &= ~cpu_to_le32(val);
+ txwi[3] |= cpu_to_le32(MT_TXD3_REM_TX_COUNT);
+ }
+
+ if (info->flags & IEEE80211_TX_CTL_INJECTED) {
+ u16 seqno = le16_to_cpu(hdr->seq_ctrl);
+
+ if (ieee80211_is_back_req(hdr->frame_control)) {
+ struct ieee80211_bar *bar;
+
+ bar = (struct ieee80211_bar *)skb->data;
+ seqno = le16_to_cpu(bar->start_seq_num);
+ }
+
+ val = MT_TXD3_SN_VALID |
+ FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
+ txwi[3] |= cpu_to_le32(val);
+ }
+
+ val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
+ txwi[7] |= cpu_to_le32(val);
+
+ if (!is_mmio) {
+ val = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+ txwi[8] |= cpu_to_le32(val);
+ }
+}
+
int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
struct sk_buff *skb, struct mt76_wcid *wcid,
struct ieee80211_sta *sta, int pid,
struct ieee80211_key_conf *key, bool beacon)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- u8 fc_type, fc_stype, p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *rate = &info->control.rates[0];
+ struct ieee80211_hw *hw = mt76_hw(dev);
bool ext_phy = info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY;
- bool multicast = is_multicast_ether_addr(hdr->addr1);
struct ieee80211_vif *vif = info->control.vif;
+ bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
bool is_mmio = mt76_is_mmio(&dev->mt76);
u32 val, sz_txd = is_mmio ? MT_TXD_SIZE : MT_USB_TXD_SIZE;
+ u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
struct mt76_phy *mphy = &dev->mphy;
- __le16 fc = hdr->frame_control;
int tx_count = 8;
- u16 seqno = 0;

if (vif) {
struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
@@ -642,9 +746,6 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
if (ext_phy && dev->mt76.phy2)
mphy = dev->mt76.phy2;

- fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2;
- fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4;
-
if (beacon) {
p_fmt = MT_TX_TYPE_FW;
q_idx = ext_phy ? MT_LMAC_BCN1 : MT_LMAC_BCN0;
@@ -664,37 +765,20 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,

val = MT_TXD1_LONG_FORMAT |
FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) |
- FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) |
- FIELD_PREP(MT_TXD1_HDR_INFO,
- ieee80211_get_hdrlen_from_skb(skb) / 2) |
FIELD_PREP(MT_TXD1_TID,
skb->priority & IEEE80211_QOS_CTL_TID_MASK) |
FIELD_PREP(MT_TXD1_PKT_FMT, p_fmt) |
FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx);
txwi[1] = cpu_to_le32(val);

- val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
- FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype) |
- FIELD_PREP(MT_TXD2_MULTICAST, multicast);
- if (key) {
- if (multicast && ieee80211_is_robust_mgmt_frame(skb) &&
- key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
- val |= MT_TXD2_BIP;
- txwi[3] = 0;
- } else {
- txwi[3] = cpu_to_le32(MT_TXD3_PROTECT_FRAME);
- }
- } else {
- txwi[3] = 0;
- }
- txwi[2] = cpu_to_le32(val);
+ txwi[2] = 0;
+ txwi[4] = 0;
+ txwi[6] = 0;
+ txwi[7] = cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX, 0x18));

if (!(info->flags & IEEE80211_TX_CTL_AMPDU))
txwi[2] |= cpu_to_le32(MT_TXD2_BA_DISABLE);

- txwi[4] = 0;
- txwi[6] = 0;
-
if (rate->idx >= 0 && rate->count &&
!(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)) {
bool stbc = info->flags & IEEE80211_TX_CTL_STBC;
@@ -722,45 +806,24 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
tx_count = rate->count;
}

- if (!ieee80211_is_beacon(fc)) {
- struct ieee80211_hw *hw = mt76_hw(dev);
-
- val = MT_TXD5_TX_STATUS_HOST | FIELD_PREP(MT_TXD5_PID, pid);
- if (!ieee80211_hw_check(hw, SUPPORTS_PS))
- val |= MT_TXD5_SW_POWER_MGMT;
- txwi[5] = cpu_to_le32(val);
- } else {
- txwi[5] = 0;
- /* use maximum tx count for beacons */
- tx_count = 0x1f;
- }
-
val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count);
- if (info->flags & IEEE80211_TX_CTL_INJECTED) {
- seqno = le16_to_cpu(hdr->seq_ctrl);
+ if (key)
+ val |= MT_TXD3_PROTECT_FRAME;
+ if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+ val |= MT_TXD3_NO_ACK;

- if (ieee80211_is_back_req(hdr->frame_control)) {
- struct ieee80211_bar *bar;
+ txwi[3] = cpu_to_le32(val);

- bar = (struct ieee80211_bar *)skb->data;
- seqno = le16_to_cpu(bar->start_seq_num);
- }
-
- val |= MT_TXD3_SN_VALID |
- FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
- }
+ val = MT_TXD5_TX_STATUS_HOST | FIELD_PREP(MT_TXD5_PID, pid);
+ if (!ieee80211_hw_check(hw, SUPPORTS_PS))
+ val |= MT_TXD5_SW_POWER_MGMT;

- txwi[3] |= cpu_to_le32(val);
+ txwi[5] = cpu_to_le32(val);

- if (info->flags & IEEE80211_TX_CTL_NO_ACK)
- txwi[3] |= cpu_to_le32(MT_TXD3_NO_ACK);
-
- txwi[7] = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
- FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype) |
- FIELD_PREP(MT_TXD7_SPE_IDX, 0x18);
- if (!is_mmio)
- txwi[8] = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
- FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+ if (is_8023)
+ mt7615_mac_write_txwi_8023(dev, txwi, skb, wcid);
+ else
+ mt7615_mac_write_txwi_80211(dev, txwi, skb, key);

return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
index 46f283eb8d0f..0b6d0b41ad83 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
@@ -186,6 +186,7 @@ enum tx_phy_bandwidth {
#define MT_TXD1_LONG_FORMAT BIT(15)
#define MT_TXD1_HDR_FORMAT GENMASK(14, 13)
#define MT_TXD1_HDR_INFO GENMASK(12, 8)
+#define MT_TXD1_ETH_802_3 BIT(12)
#define MT_TXD1_WLAN_IDX GENMASK(7, 0)

#define MT_TXD2_FIX_RATE BIT(31)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 7c9a55c57578..30e9c189edb1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -240,6 +240,9 @@ static int mt7615_add_interface(struct ieee80211_hw *hw,
}

ret = mt7615_mcu_add_dev_info(phy, vif, true);
+
+ if (vif->type != NL80211_IFTYPE_AP)
+ vif->offload_flags = 0;
out:
mt7615_mutex_release(dev);

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index cf4a4f2637d5..6cf2ed680097 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -1041,11 +1041,11 @@ mt7615_mcu_wtbl_sta_add(struct mt7615_phy *phy, struct ieee80211_vif *vif,
if (enable) {
mt76_connac_mcu_wtbl_generic_tlv(&dev->mt76, wskb, vif, sta,
NULL, wtbl_hdr);
+ mt76_connac_mcu_wtbl_hdr_trans_tlv(wskb, vif, &msta->wcid,
+ NULL, wtbl_hdr);
if (sta)
mt76_connac_mcu_wtbl_ht_tlv(&dev->mt76, wskb, sta,
NULL, wtbl_hdr);
- mt76_connac_mcu_wtbl_hdr_trans_tlv(wskb, vif, &msta->wcid,
- NULL, wtbl_hdr);
}

cmd = enable ? MCU_EXT_CMD_WTBL_UPDATE : MCU_EXT_CMD_STA_REC_UPDATE;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
index cc278d8cb888..f8cc3561dd0a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
@@ -112,7 +112,8 @@ mt7615_write_fw_txp(struct mt7615_dev *dev, struct mt76_tx_info *tx_info,
if (!key)
txp->flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME);

- if (ieee80211_is_mgmt(hdr->frame_control))
+ if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) &&
+ ieee80211_is_mgmt(hdr->frame_control))
txp->flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME);

if (vif) {
@@ -139,6 +140,9 @@ int mt7615_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
struct mt7615_sta *msta;
void *txp;

+ if (unlikely(tx_info->skb->len <= ETH_HLEN))
+ return -EINVAL;
+
msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
if (!wcid)
wcid = &dev->mt76.global_wcid;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
index 996d48cca18a..fcbaee21bd4c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
@@ -197,6 +197,9 @@ int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
struct mt7615_sta *msta;
int pad;

+ if (unlikely(skb->len <= ETH_HLEN))
+ return -EINVAL;
+
msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) &&
msta && !msta->rate_probe) {
--
2.18.0

2021-06-17 20:40:00

by Ryder Lee

[permalink] [raw]
Subject: [PATCH 2/4] mt76: drop MT_DRV_AMSDU_OFFLOAD flag

It's not needed after introducing IEEE80211_OFFLOAD_ENCAP_ENABLED in mac80211.

Signed-off-by: Ryder Lee <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mac80211.c | 8 ++------
drivers/net/wireless/mediatek/mt76/mt76.h | 1 -
drivers/net/wireless/mediatek/mt76/mt7915/pci.c | 3 +--
drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 3 +--
4 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index ebd59d7e5837..89d09187655b 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -322,12 +322,8 @@ mt76_phy_init(struct mt76_phy *phy, struct ieee80211_hw *hw)
ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
-
- if (!(dev->drv->drv_flags & MT_DRV_AMSDU_OFFLOAD)) {
- ieee80211_hw_set(hw, TX_AMSDU);
- ieee80211_hw_set(hw, TX_FRAG_LIST);
- }
-
+ ieee80211_hw_set(hw, TX_AMSDU);
+ ieee80211_hw_set(hw, TX_FRAG_LIST);
ieee80211_hw_set(hw, MFP_CAPABLE);
ieee80211_hw_set(hw, AP_LINK_PS);
ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index c7085d6cdcc4..6ee29b684f24 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -343,7 +343,6 @@ struct mt76_hw_cap {
#define MT_DRV_SW_RX_AIRTIME BIT(2)
#define MT_DRV_RX_DMA_HDR BIT(3)
#define MT_DRV_HW_MGMT_TXQ BIT(4)
-#define MT_DRV_AMSDU_OFFLOAD BIT(5)

struct mt76_driver_ops {
u32 drv_flags;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/pci.c b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
index 340b364da5f0..e5a3f0ddaec3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
@@ -222,8 +222,7 @@ static int mt7915_pci_probe(struct pci_dev *pdev,
static const struct mt76_driver_ops drv_ops = {
/* txwi_size = txd size + txp size */
.txwi_size = MT_TXD_SIZE + sizeof(struct mt7915_txp),
- .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ |
- MT_DRV_AMSDU_OFFLOAD,
+ .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ,
.survey_flags = SURVEY_INFO_TIME_TX |
SURVEY_INFO_TIME_RX |
SURVEY_INFO_TIME_BSS_RX,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 13263f50dc00..0aed1d061316 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -94,8 +94,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
static const struct mt76_driver_ops drv_ops = {
/* txwi_size = txd size + txp size */
.txwi_size = MT_TXD_SIZE + sizeof(struct mt7921_txp_common),
- .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ |
- MT_DRV_AMSDU_OFFLOAD,
+ .drv_flags = MT_DRV_TXWI_NO_FREE | MT_DRV_HW_MGMT_TXQ,
.survey_flags = SURVEY_INFO_TIME_TX |
SURVEY_INFO_TIME_RX |
SURVEY_INFO_TIME_BSS_RX,
--
2.18.0

2021-06-17 20:40:05

by Ryder Lee

[permalink] [raw]
Subject: [PATCH 3/4] mt76: connac: explicitly check vif->offload_flags

Check vif->offload_flags for encap offload in case of unsupported interfaces.

Signed-off-by: Ryder Lee <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index b155e7b8d89d..e56713425860 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -406,10 +406,12 @@ void mt76_connac_mcu_wtbl_hdr_trans_tlv(struct sk_buff *skb,
htr = (struct wtbl_hdr_trans *)tlv;
htr->no_rx_trans = !test_bit(MT_WCID_FLAG_HDR_TRANS, &wcid->flags);

- if (vif->type == NL80211_IFTYPE_STATION)
- htr->to_ds = true;
- else
- htr->from_ds = true;
+ if (vif->offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED) {
+ if (vif->type == NL80211_IFTYPE_STATION)
+ htr->to_ds = true;
+ else
+ htr->from_ds = true;
+ }

if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags)) {
htr->to_ds = true;
--
2.18.0

2021-06-17 20:48:19

by Felix Fietkau

[permalink] [raw]
Subject: Re: [PATCH 1/4] mac80211: check per vif offload_flags in Tx path


On 2021-06-17 20:53, Ryder Lee wrote:
> offload_flags has been introduced to indicate encap status of each interface.
> An interface can encap offload at runtime, or if it has some extra limitations
> it can simply override the flags, so it's more flexible to check offload_flags
> in Tx path.
>
> Signed-off-by: Ryder Lee <[email protected]>
> ---
> net/mac80211/tx.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
> index 0a4bc9e08637..8cb1289c704a 100644
> --- a/net/mac80211/tx.c
> +++ b/net/mac80211/tx.c
> @@ -3695,7 +3698,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
> }
>
> if (skb_has_frag_list(skb) &&
> - !ieee80211_hw_check(&local->hw, TX_FRAG_LIST)) {
> + (!ieee80211_hw_check(&local->hw, TX_FRAG_LIST) ||
> + vif->offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)) {
> if (skb_linearize(skb)) {
> ieee80211_free_txskb(&local->hw, skb);
> goto begin;
I think this chunk should be dropped.

- Felix