diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2021-05-06 20:13:32 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-06-19 09:22:43 +0200 |
| commit | 5b0b5c6a1c2195942ac48ec8bbf567789f903353 (patch) | |
| tree | 296e90f1651129be139c3644f4c47ad3fdcfcca9 | |
| parent | 861fad474ec7638aeca46a508da4ea81612374b9 (diff) | |
mt76: mt7921: enable rx hw de-amsdu
Enable hw rx-amsdu de-aggregation support available in 7921 devices.
This is a preliminary patch to enable rx checksum offload.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/init.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 16 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mac.h | 3 |
3 files changed, 20 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 703f36bedc17..73741e148240 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -125,8 +125,8 @@ void mt7921_mac_init(struct mt7921_dev *dev) int i; mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); - /* disable hardware de-agg */ - mt76_clear(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); + /* enable hardware de-agg */ + mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); mt76_clear(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); for (i = 0; i < MT7921_WTBL_SIZE; i++) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index decf2d5f0ce3..7e57d230e63a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -319,8 +319,9 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) u32 rxd1 = le32_to_cpu(rxd[1]); u32 rxd2 = le32_to_cpu(rxd[2]); u32 rxd3 = le32_to_cpu(rxd[3]); + u32 rxd4 = le32_to_cpu(rxd[4]); bool unicast, insert_ccmp_hdr = false; - u8 remove_pad; + u8 remove_pad, amsdu_info; int i, idx; u8 chfreq; @@ -332,6 +333,9 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) return -EINVAL; + if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR) + return -EINVAL; + chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3); unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); @@ -540,6 +544,16 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) skb_pull(skb, (u8 *)rxd - skb->data + 2 * remove_pad); + amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4); + status->amsdu = !!amsdu_info; + if (status->amsdu) { + status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME; + status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME; + memmove(skb->data + 2, skb->data, + ieee80211_get_hdrlen_from_skb(skb)); + skb_pull(skb, 2); + } + if (insert_ccmp_hdr) { u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h index 109c8849d106..435c138c27d1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h @@ -88,6 +88,9 @@ enum rx_pkt_type { /* RXD DW4 */ #define MT_RXD4_NORMAL_PAYLOAD_FORMAT GENMASK(1, 0) +#define MT_RXD4_FIRST_AMSDU_FRAME GENMASK(1, 0) +#define MT_RXD4_MID_AMSDU_FRAME BIT(1) +#define MT_RXD4_LAST_AMSDU_FRAME BIT(0) #define MT_RXD4_NORMAL_PATTERN_DROP BIT(9) #define MT_RXD4_NORMAL_CLS BIT(10) #define MT_RXD4_NORMAL_OFLD GENMASK(12, 11) |