2020-10-08 18:25:17

by Ryder Lee

[permalink] [raw]
Subject: [PATCH v2 1/2] mt76: mt7915: update ppe threshold

Update ppe_thresh capability to sync SDK setting.

Signed-off-by: Shayne Chen <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
---
.../net/wireless/mediatek/mt76/mt7915/init.c | 43 +++++++------------
1 file changed, 16 insertions(+), 27 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 5f238bc63c2a..738b4ed8b7e7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -357,35 +357,24 @@ mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap *he_cap,
}

static void
-mt7915_gen_ppe_thresh(u8 *he_ppet)
+mt7915_gen_ppe_thresh(u8 *he_ppet, int nss)
{
- int ru, nss, max_nss = 1, max_ru = 3;
- u8 bit = 7, ru_bit_mask = 0x7;
+ u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};

- he_ppet[0] = max_nss & IEEE80211_PPE_THRES_NSS_MASK;
- he_ppet[0] |= (ru_bit_mask <<
- IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS) &
- IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK;
-
- for (nss = 0; nss <= max_nss; nss++) {
- for (ru = 0; ru < max_ru; ru++) {
- u8 val;
- int i;
-
- if (!(ru_bit_mask & BIT(ru)))
- continue;
-
- val = (ppet16_ppet8_ru3_ru0[nss] >> (ru * 6)) &
- 0x3f;
- val = ((val >> 3) & 0x7) | ((val & 0x7) << 3);
- for (i = 5; i >= 0; i--) {
- he_ppet[bit / 8] |=
- ((val >> i) & 0x1) << ((bit % 8));
- bit++;
- }
- }
- }
+ he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
+ FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
+ ru_bit_mask);
+
+ ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
+ nss * hweight8(ru_bit_mask) * 2;
+ ppet_size = DIV_ROUND_UP(ppet_bits, 8);
+
+ for (i = 0; i < ppet_size - 1; i++)
+ he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
+
+ he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
+ (0xff >> (8 - (ppet_bits - 1) % 8));
}

static int
@@ -516,7 +505,7 @@ mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
if (he_cap_elem->phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
- mt7915_gen_ppe_thresh(he_cap->ppe_thres);
+ mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss);
} else {
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
--
2.18.0


2020-10-08 18:26:24

by Ryder Lee

[permalink] [raw]
Subject: [PATCH v2 2/2] mt76: mt7915: rename mt7915_mcu_get_rate_info to mt7915_mcu_get_tx_rate

Avoid confusion with rx rate query function.

Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
---
change since v2 -rebase on top of https://patchwork.kernel.org/patch/11808961/
---
drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 2 +-
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 10 +++++-----
drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index a7118df7b93f..521d0c2f6c25 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -1422,7 +1422,7 @@ mt7915_mac_sta_stats_work(struct mt7915_phy *phy)
spin_unlock_bh(&dev->sta_poll_lock);

/* use MT_TX_FREE_RATE to report Tx rate for further devices */
- mt7915_mcu_get_rate_info(dev, RATE_CTRL_RU_INFO, msta->wcid.idx);
+ mt7915_mcu_get_tx_rate(dev, RATE_CTRL_RU_INFO, msta->wcid.idx);

spin_lock_bh(&dev->sta_poll_lock);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index dde053a76261..ce2357550015 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -352,8 +352,8 @@ mt7915_mcu_rx_radar_detected(struct mt7915_dev *dev, struct sk_buff *skb)
}

static void
-mt7915_mcu_tx_rate_cal(struct mt76_phy *mphy, struct mt7915_mcu_ra_info *ra,
- struct rate_info *rate, u16 r)
+mt7915_mcu_tx_rate_parse(struct mt76_phy *mphy, struct mt7915_mcu_ra_info *ra,
+ struct rate_info *rate, u16 r)
{
struct ieee80211_supported_band *sband;
u16 ru_idx = le16_to_cpu(ra->ru_idx);
@@ -465,11 +465,11 @@ mt7915_mcu_tx_rate_report(struct mt7915_dev *dev, struct sk_buff *skb)
mphy = dev->mt76.phy2;

/* current rate */
- mt7915_mcu_tx_rate_cal(mphy, ra, &rate, curr);
+ mt7915_mcu_tx_rate_parse(mphy, ra, &rate, curr);
stats->tx_rate = rate;

/* probing rate */
- mt7915_mcu_tx_rate_cal(mphy, ra, &prob_rate, probe);
+ mt7915_mcu_tx_rate_parse(mphy, ra, &prob_rate, probe);
stats->prob_rate = prob_rate;

if (attempts) {
@@ -3260,7 +3260,7 @@ int mt7915_mcu_get_temperature(struct mt7915_dev *dev, int index)
sizeof(req), true);
}

-int mt7915_mcu_get_rate_info(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx)
+int mt7915_mcu_get_tx_rate(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx)
{
struct {
__le32 cmd;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 0ea3965c28f5..89cabda64f41 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -319,8 +319,8 @@ int mt7915_mcu_set_pulse_th(struct mt7915_dev *dev,
const struct mt7915_dfs_pulse *pulse);
int mt7915_mcu_set_radar_th(struct mt7915_dev *dev, int index,
const struct mt7915_dfs_pattern *pattern);
-int mt7915_mcu_get_rate_info(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx);
int mt7915_mcu_get_temperature(struct mt7915_dev *dev, int index);
+int mt7915_mcu_get_tx_rate(struct mt7915_dev *dev, u32 cmd, u16 wlan_idx);
int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct rate_info *rate);
int mt7915_mcu_rdd_cmd(struct mt7915_dev *dev, enum mt7915_rdd_cmd cmd,
--
2.18.0

2020-10-08 19:19:52

by Arend Van Spriel

[permalink] [raw]
Subject: Re: [PATCH v2 1/2] mt76: mt7915: update ppe threshold

On 10/8/2020 6:57 PM, Ryder Lee wrote:
> Update ppe_thresh capability to sync SDK setting.

What does this "SDK" mean? The commit message does not describe why this
sync in necessary, ie. why is the nss parameter added.

Regards,
Arend

> Signed-off-by: Shayne Chen<[email protected]>
> Signed-off-by: Ryder Lee<[email protected]>
> ---
> .../net/wireless/mediatek/mt76/mt7915/init.c | 43 +++++++------------
> 1 file changed, 16 insertions(+), 27 deletions(-)


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