[PATCH v4 09/12] mt76: mt7915: update rx rate reporting for mt7916
Bo Jiao
bo.jiao at mediatek.com
Sun Dec 19 18:18:01 PST 2021
From: Bo Jiao <Bo.Jiao at mediatek.com>
mt7916 reports rx rate from rxd group3 directly.
Co-developed-by: Sujuan Chen <sujuan.chen at mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen at mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao at mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7915/init.c | 3 +-
.../net/wireless/mediatek/mt76/mt7915/mac.c | 193 +++++++++++-------
.../net/wireless/mediatek/mt76/mt7915/mac.h | 6 +
.../net/wireless/mediatek/mt76/mt7915/main.c | 3 +-
4 files changed, 129 insertions(+), 76 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 8bc88db..7557429 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -411,7 +411,8 @@ mt7915_mac_init_band(struct mt7915_dev *dev, u8 band)
mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);
mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 0x680);
- /* disable rx rate report by default due to hw issues */
+
+ /* mt7915: disable rx rate report by default due to hw issues */
mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 74ec7cd..e16df04 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -462,6 +462,116 @@ static int mt7915_reverse_frag0_hdr_trans(struct sk_buff *skb, u16 hdr_gap)
return 0;
}
+static int
+mt7915_mac_fill_rx_rate(struct mt7915_dev *dev,
+ struct mt76_rx_status *status,
+ struct ieee80211_supported_band *sband,
+ __le32 *rxv)
+{
+ u32 v0, v1, v2;
+ u16 legacy;
+ u8 flags, stbc, gi, bw, dcm, mode, nss;
+ int i, idx;
+ bool cck = false;
+
+ v0 = le32_to_cpu(rxv[0]);
+ v1 = le32_to_cpu(rxv[1]);
+ v2 = le32_to_cpu(rxv[2]);
+
+ idx = i = FIELD_GET(MT_PRXV_TX_RATE, v0);
+ nss = FIELD_GET(MT_PRXV_NSTS, v0) + 1;
+
+ if (!is_mt7915(&dev->mt76)) {
+ stbc = FIELD_GET(MT_PRXV_HT_STBC, v0);
+ gi = FIELD_GET(MT_PRXV_HT_SHORT_GI, v0);
+ mode = FIELD_GET(MT_PRXV_TX_MODE, v0);
+ dcm = FIELD_GET(MT_PRXV_DCM, v0);
+ bw = FIELD_GET(MT_PRXV_FRAME_MODE, v0);
+ } else {
+ stbc = FIELD_GET(MT_CRXV_HT_STBC, v2);
+ gi = FIELD_GET(MT_CRXV_HT_SHORT_GI, v2);
+ mode = FIELD_GET(MT_CRXV_TX_MODE, v2);
+ dcm = !!(idx & GENMASK(3, 0) & MT_PRXV_TX_DCM);
+ bw = FIELD_GET(MT_CRXV_FRAME_MODE, v2);
+ }
+
+ switch (mode) {
+ case MT_PHY_TYPE_CCK:
+ cck = true;
+ fallthrough;
+ case MT_PHY_TYPE_OFDM:
+ i = mt76_get_rate(&dev->mt76, sband, i, cck);
+ legacy = sband->bitrates[i].bitrate;
+ break;
+ case MT_PHY_TYPE_HT_GF:
+ case MT_PHY_TYPE_HT:
+ status->encoding = RX_ENC_HT;
+ if (i > 31)
+ return -EINVAL;
+
+ flags = RATE_INFO_FLAGS_MCS;
+ if (gi)
+ flags |= RATE_INFO_FLAGS_SHORT_GI;
+ break;
+ case MT_PHY_TYPE_VHT:
+ status->nss = nss;
+ status->encoding = RX_ENC_VHT;
+ if (i > 9)
+ return -EINVAL;
+
+ flags = RATE_INFO_FLAGS_VHT_MCS;
+ if (gi)
+ flags |= RATE_INFO_FLAGS_SHORT_GI;
+ break;
+ case MT_PHY_TYPE_HE_MU:
+ case MT_PHY_TYPE_HE_SU:
+ case MT_PHY_TYPE_HE_EXT_SU:
+ case MT_PHY_TYPE_HE_TB:
+ status->nss = nss;
+ status->encoding = RX_ENC_HE;
+ i &= GENMASK(3, 0);
+
+ if (gi <= NL80211_RATE_INFO_HE_GI_3_2)
+ status->he_gi = gi;
+
+ status->he_dcm = dcm;
+ flags |= RATE_INFO_FLAGS_HE_MCS;
+ break;
+ default:
+ return -EINVAL;
+ }
+ status->rate_idx = i;
+
+ switch (bw) {
+ case IEEE80211_STA_RX_BW_20:
+ break;
+ case IEEE80211_STA_RX_BW_40:
+ if (mode & MT_PHY_TYPE_HE_EXT_SU &&
+ (idx & MT_PRXV_TX_ER_SU_106T)) {
+ status->bw = RATE_INFO_BW_HE_RU;
+ status->he_ru =
+ NL80211_RATE_INFO_HE_RU_ALLOC_106;
+ } else {
+ status->bw = RATE_INFO_BW_40;
+ }
+ break;
+ case IEEE80211_STA_RX_BW_80:
+ status->bw = RATE_INFO_BW_80;
+ break;
+ case IEEE80211_STA_RX_BW_160:
+ status->bw = RATE_INFO_BW_160;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc;
+ if (mode < MT_PHY_TYPE_HE_SU && gi)
+ status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
+
+ return 0;
+}
+
static int
mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
{
@@ -626,7 +736,8 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
/* RXD Group 3 - P-RXV */
if (rxd1 & MT_RXD1_NORMAL_GROUP_3) {
- u32 v0, v1, v2;
+ u32 v0, v1;
+ int ret;
rxv = rxd;
rxd += 2;
@@ -635,7 +746,6 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
v0 = le32_to_cpu(rxv[0]);
v1 = le32_to_cpu(rxv[1]);
- v2 = le32_to_cpu(rxv[2]);
if (v0 & MT_PRXV_HT_AD_CODE)
status->enc_flags |= RX_ENC_FLAG_LDPC;
@@ -657,82 +767,17 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
/* RXD Group 5 - C-RXV */
if (rxd1 & MT_RXD1_NORMAL_GROUP_5) {
- u8 stbc = FIELD_GET(MT_CRXV_HT_STBC, v2);
- u8 gi = FIELD_GET(MT_CRXV_HT_SHORT_GI, v2);
- bool cck = false;
-
rxd += 18;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
+ }
- idx = i = FIELD_GET(MT_PRXV_TX_RATE, v0);
- mode = FIELD_GET(MT_CRXV_TX_MODE, v2);
-
- switch (mode) {
- case MT_PHY_TYPE_CCK:
- cck = true;
- fallthrough;
- case MT_PHY_TYPE_OFDM:
- i = mt76_get_rate(&dev->mt76, sband, i, cck);
- break;
- case MT_PHY_TYPE_HT_GF:
- case MT_PHY_TYPE_HT:
- status->encoding = RX_ENC_HT;
- if (i > 31)
- return -EINVAL;
- break;
- case MT_PHY_TYPE_VHT:
- status->nss =
- FIELD_GET(MT_PRXV_NSTS, v0) + 1;
- status->encoding = RX_ENC_VHT;
- if (i > 9)
- return -EINVAL;
- break;
- case MT_PHY_TYPE_HE_MU:
- case MT_PHY_TYPE_HE_SU:
- case MT_PHY_TYPE_HE_EXT_SU:
- case MT_PHY_TYPE_HE_TB:
- status->nss =
- FIELD_GET(MT_PRXV_NSTS, v0) + 1;
- status->encoding = RX_ENC_HE;
- i &= GENMASK(3, 0);
-
- if (gi <= NL80211_RATE_INFO_HE_GI_3_2)
- status->he_gi = gi;
-
- status->he_dcm = !!(idx & MT_PRXV_TX_DCM);
- break;
- default:
- return -EINVAL;
- }
- status->rate_idx = i;
-
- switch (FIELD_GET(MT_CRXV_FRAME_MODE, v2)) {
- case IEEE80211_STA_RX_BW_20:
- break;
- case IEEE80211_STA_RX_BW_40:
- if (mode & MT_PHY_TYPE_HE_EXT_SU &&
- (idx & MT_PRXV_TX_ER_SU_106T)) {
- status->bw = RATE_INFO_BW_HE_RU;
- status->he_ru =
- NL80211_RATE_INFO_HE_RU_ALLOC_106;
- } else {
- status->bw = RATE_INFO_BW_40;
- }
- break;
- case IEEE80211_STA_RX_BW_80:
- status->bw = RATE_INFO_BW_80;
- break;
- case IEEE80211_STA_RX_BW_160:
- status->bw = RATE_INFO_BW_160;
- break;
- default:
- return -EINVAL;
- }
-
- status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc;
- if (mode < MT_PHY_TYPE_HE_SU && gi)
- status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
+ if (!is_mt7915(&dev->mt76) ||
+ (is_mt7915(&dev->mt76) &&
+ (rxd1 & MT_RXD1_NORMAL_GROUP_5))) {
+ ret = mt7915_mac_fill_rx_rate(dev, status, sband, rxv);
+ if (ret < 0)
+ return ret;
}
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
index 4504ebc..d79f0a5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
@@ -125,6 +125,12 @@ enum rx_pkt_type {
#define MT_PRXV_RCPI2 GENMASK(23, 16)
#define MT_PRXV_RCPI1 GENMASK(15, 8)
#define MT_PRXV_RCPI0 GENMASK(7, 0)
+#define MT_PRXV_HT_SHORT_GI GENMASK(16, 15)
+#define MT_PRXV_HT_STBC GENMASK(23, 22)
+#define MT_PRXV_TX_MODE GENMASK(27, 24)
+#define MT_PRXV_FRAME_MODE GENMASK(14, 12)
+#define MT_PRXV_DCM BIT(17)
+#define MT_PRXV_NUM_RX BIT(20, 18)
/* C-RXV */
#define MT_CRXV_HT_STBC GENMASK(1, 0)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 8302fae..d2a7a4a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -1006,7 +1006,8 @@ static void mt7915_sta_statistics(struct ieee80211_hw *hw,
struct rate_info *txrate = &msta->wcid.rate;
struct rate_info rxrate = {};
- if (!mt7915_mcu_get_rx_rate(phy, vif, sta, &rxrate)) {
+ if (is_mt7915(&phy->dev->mt76) &&
+ !mt7915_mcu_get_rx_rate(phy, vif, sta, &rxrate)) {
sinfo->rxrate = rxrate;
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE);
}
--
2.18.0
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