[PATCH v5 3/8] mt76: mt7915: improve starec readability of txbf
Shayne Chen
shayne.chen at mediatek.com
Fri Oct 1 02:53:50 PDT 2021
1. Drop unnecessary MT_EBF/MT_IBF enum.
2. Rename fields 'nc'/'nr' to 'ncol'/'nrow'.
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen at mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7915/mcu.c | 81 ++++++++++---------
.../net/wireless/mediatek/mt76/mt7915/mcu.h | 13 +--
2 files changed, 45 insertions(+), 49 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index a6ecdf4ce4c3..6c1f1674feb5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -1810,7 +1810,6 @@ mt7915_is_ebf_supported(struct mt7915_phy *phy, struct ieee80211_vif *vif,
static void
mt7915_mcu_sta_sounding_rate(struct sta_rec_bf *bf)
{
- bf->bf_cap = MT_EBF;
bf->sounding_phy = MT_PHY_TYPE_OFDM;
bf->ndp_rate = 0; /* mcs0 */
bf->ndpa_rate = MT7915_CFEND_RATE_DEFAULT; /* ofdm 24m */
@@ -1825,7 +1824,6 @@ mt7915_mcu_sta_bfer_ht(struct ieee80211_sta *sta, struct mt7915_phy *phy,
u8 n = 0;
bf->tx_mode = MT_PHY_TYPE_HT;
- bf->bf_cap = MT_IBF;
if ((mcs->tx_params & IEEE80211_HT_MCS_TX_RX_DIFF) &&
(mcs->tx_params & IEEE80211_HT_MCS_TX_DEFINED))
@@ -1838,8 +1836,8 @@ mt7915_mcu_sta_bfer_ht(struct ieee80211_sta *sta, struct mt7915_phy *phy,
else if (mcs->rx_mask[1])
n = 1;
- bf->nr = hweight8(phy->mt76->chainmask) - 1;
- bf->nc = min_t(u8, bf->nr, n);
+ bf->nrow = hweight8(phy->mt76->chainmask) - 1;
+ bf->ncol = min_t(u8, bf->nrow, n);
bf->ibf_ncol = n;
}
@@ -1856,23 +1854,23 @@ mt7915_mcu_sta_bfer_vht(struct ieee80211_sta *sta, struct mt7915_phy *phy,
bf->tx_mode = MT_PHY_TYPE_VHT;
if (explicit) {
- u8 bfee_nr, bfer_nr;
+ u8 sts, snd_dim;
mt7915_mcu_sta_sounding_rate(bf);
- bfee_nr = FIELD_GET(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK,
- pc->cap);
- bfer_nr = FIELD_GET(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
+
+ sts = FIELD_GET(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK,
+ pc->cap);
+ snd_dim = FIELD_GET(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
vc->cap);
- bf->nr = min_t(u8, min_t(u8, bfer_nr, bfee_nr), tx_ant);
- bf->nc = min_t(u8, nss_mcs, bf->nr);
- bf->ibf_ncol = bf->nc;
+ bf->nrow = min_t(u8, min_t(u8, snd_dim, sts), tx_ant);
+ bf->ncol = min_t(u8, nss_mcs, bf->nrow);
+ bf->ibf_ncol = bf->ncol;
if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
- bf->nr = 1;
+ bf->nrow = 1;
} else {
- bf->bf_cap = MT_IBF;
- bf->nr = tx_ant;
- bf->nc = min_t(u8, nss_mcs, bf->nr);
+ bf->nrow = tx_ant;
+ bf->ncol = min_t(u8, nss_mcs, bf->nrow);
bf->ibf_ncol = nss_mcs;
if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
@@ -1890,21 +1888,23 @@ mt7915_mcu_sta_bfer_he(struct ieee80211_sta *sta, struct ieee80211_vif *vif,
const struct ieee80211_he_cap_elem *ve = &vc->he_cap_elem;
u16 mcs_map = le16_to_cpu(pc->he_mcs_nss_supp.rx_mcs_80);
u8 nss_mcs = mt7915_mcu_get_sta_nss(mcs_map);
- u8 bfee_nr, bfer_nr;
+ u8 snd_dim, sts;
bf->tx_mode = MT_PHY_TYPE_HE_SU;
+
mt7915_mcu_sta_sounding_rate(bf);
+
bf->trigger_su = HE_PHY(CAP6_TRIG_SU_BEAMFORMING_FB,
pe->phy_cap_info[6]);
bf->trigger_mu = HE_PHY(CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB,
pe->phy_cap_info[6]);
- bfer_nr = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK,
+ snd_dim = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK,
ve->phy_cap_info[5]);
- bfee_nr = HE_PHY(CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK,
- pe->phy_cap_info[4]);
- bf->nr = min_t(u8, bfer_nr, bfee_nr);
- bf->nc = min_t(u8, nss_mcs, bf->nr);
- bf->ibf_ncol = bf->nc;
+ sts = HE_PHY(CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK,
+ pe->phy_cap_info[4]);
+ bf->nrow = min_t(u8, snd_dim, sts);
+ bf->ncol = min_t(u8, nss_mcs, bf->nrow);
+ bf->ibf_ncol = bf->ncol;
if (sta->bandwidth != IEEE80211_STA_RX_BW_160)
return;
@@ -1915,7 +1915,7 @@ mt7915_mcu_sta_bfer_he(struct ieee80211_sta *sta, struct ieee80211_vif *vif,
mcs_map = le16_to_cpu(pc->he_mcs_nss_supp.rx_mcs_160);
nss_mcs = mt7915_mcu_get_sta_nss(mcs_map);
- bf->nc_bw160 = nss_mcs;
+ bf->ncol_bw160 = nss_mcs;
}
if (pe->phy_cap_info[0] &
@@ -1923,18 +1923,18 @@ mt7915_mcu_sta_bfer_he(struct ieee80211_sta *sta, struct ieee80211_vif *vif,
mcs_map = le16_to_cpu(pc->he_mcs_nss_supp.rx_mcs_80p80);
nss_mcs = mt7915_mcu_get_sta_nss(mcs_map);
- if (bf->nc_bw160)
- bf->nc_bw160 = min_t(u8, bf->nc_bw160, nss_mcs);
+ if (bf->ncol_bw160)
+ bf->ncol_bw160 = min_t(u8, bf->ncol_bw160, nss_mcs);
else
- bf->nc_bw160 = nss_mcs;
+ bf->ncol_bw160 = nss_mcs;
}
- bfer_nr = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK,
+ snd_dim = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK,
ve->phy_cap_info[5]);
- bfee_nr = HE_PHY(CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK,
- pe->phy_cap_info[4]);
+ sts = HE_PHY(CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK,
+ pe->phy_cap_info[4]);
- bf->nr_bw160 = min_t(int, bfer_nr, bfee_nr);
+ bf->nrow_bw160 = min_t(int, snd_dim, sts);
}
static void
@@ -1975,19 +1975,20 @@ mt7915_mcu_sta_bfer_tlv(struct mt7915_dev *dev, struct sk_buff *skb,
else
return;
+ bf->bf_cap = ebf ? ebf : dev->ibf << 1;
bf->bw = sta->bandwidth;
bf->ibf_dbw = sta->bandwidth;
bf->ibf_nrow = tx_ant;
- if (!ebf && sta->bandwidth <= IEEE80211_STA_RX_BW_40 && !bf->nc)
+ if (!ebf && sta->bandwidth <= IEEE80211_STA_RX_BW_40 && !bf->ncol)
bf->ibf_timeout = 0x48;
else
bf->ibf_timeout = 0x18;
- if (ebf && bf->nr != tx_ant)
- bf->mem_20m = matrix[tx_ant][bf->nc];
+ if (ebf && bf->nrow != tx_ant)
+ bf->mem_20m = matrix[tx_ant][bf->ncol];
else
- bf->mem_20m = matrix[bf->nr][bf->nc];
+ bf->mem_20m = matrix[bf->nrow][bf->ncol];
switch (sta->bandwidth) {
case IEEE80211_STA_RX_BW_160:
@@ -2013,7 +2014,7 @@ mt7915_mcu_sta_bfee_tlv(struct mt7915_dev *dev, struct sk_buff *skb,
int tx_ant = hweight8(phy->mt76->chainmask) - 1;
struct sta_rec_bfee *bfee;
struct tlv *tlv;
- u8 nr = 0;
+ u8 nrow = 0;
if (!mt7915_is_ebf_supported(phy, vif, sta, true))
return;
@@ -2024,17 +2025,17 @@ mt7915_mcu_sta_bfee_tlv(struct mt7915_dev *dev, struct sk_buff *skb,
if (sta->he_cap.has_he) {
struct ieee80211_he_cap_elem *pe = &sta->he_cap.he_cap_elem;
- nr = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK,
- pe->phy_cap_info[5]);
+ nrow = HE_PHY(CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK,
+ pe->phy_cap_info[5]);
} else if (sta->vht_cap.vht_supported) {
struct ieee80211_sta_vht_cap *pc = &sta->vht_cap;
- nr = FIELD_GET(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
- pc->cap);
+ nrow = FIELD_GET(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
+ pc->cap);
}
/* reply with identity matrix to avoid 2x2 BF negative gain */
- bfee->fb_identity_matrix = !!(nr == 1 && tx_ant == 2);
+ bfee->fb_identity_matrix = (nrow == 1 && tx_ant == 2);
}
static int
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index 374d44f71522..9cda7c3b47a7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -972,8 +972,8 @@ struct sta_rec_bf {
u8 ndp_rate;
u8 rept_poll_rate;
u8 tx_mode; /* 0: legacy, 1: OFDM, 2: HT, 4: VHT ... */
- u8 nc;
- u8 nr;
+ u8 ncol;
+ u8 nrow;
u8 bw; /* 0: 20M, 1: 40M, 2: 80M, 3: 160M */
u8 mem_total;
@@ -993,8 +993,8 @@ struct sta_rec_bf {
u8 ibf_dbw;
u8 ibf_ncol;
u8 ibf_nrow;
- u8 nr_bw160;
- u8 nc_bw160;
+ u8 nrow_bw160;
+ u8 ncol_bw160;
u8 ru_start_idx;
u8 ru_end_idx;
@@ -1085,11 +1085,6 @@ enum {
THERMAL_PROTECT_STATE_ACT,
};
-enum {
- MT_EBF = BIT(0), /* explicit beamforming */
- MT_IBF = BIT(1) /* implicit beamforming */
-};
-
enum {
MT_BF_SOUNDING_ON = 1,
MT_BF_TYPE_UPDATE = 20,
--
2.25.1
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