[PATCH v3 08/10] mt76: mt7915: implement testmode rx support
Shayne Chen
shayne.chen at mediatek.com
Mon Oct 12 08:54:01 EDT 2020
Support testmode rx and display rx statistic by parsing RXV packet
type, which is currently only enabled in testmode.
Reviewed-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen at mediatek.com>
---
v2: change last_snr to u8
v3: use nla_put_u8 for MT76_TM_RX_ATTR_SNR
change snr variable type to u8 in mt7915_mac_fill_rx_vector
.../net/wireless/mediatek/mt76/mt7915/dma.c | 3 +
.../net/wireless/mediatek/mt76/mt7915/mac.c | 38 ++++++++
.../net/wireless/mediatek/mt76/mt7915/mac.h | 5 +
.../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
.../wireless/mediatek/mt76/mt7915/mt7915.h | 7 ++
.../wireless/mediatek/mt76/mt7915/testmode.c | 97 +++++++++++++++++++
.../wireless/mediatek/mt76/mt7915/testmode.h | 30 ++++++
7 files changed, 181 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
index cfa12c4..e14814d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
@@ -61,6 +61,9 @@ void mt7915_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
case PKT_TYPE_RX_EVENT:
mt7915_mcu_rx_event(dev, skb);
break;
+ case PKT_TYPE_TXRXV:
+ mt7915_mac_fill_rx_vector(dev, skb);
+ break;
case PKT_TYPE_NORMAL:
if (!mt7915_mac_fill_rx(dev, skb)) {
mt76_rx(&dev->mt76, q, skb);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index e03e12f..7bfdf54 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -562,6 +562,44 @@ int mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
return 0;
}
+void mt7915_mac_fill_rx_vector(struct mt7915_dev *dev, struct sk_buff *skb)
+{
+#ifdef CONFIG_NL80211_TESTMODE
+ __le32 *rxd = (__le32 *)skb->data;
+ __le32 *rxv = rxd + 4;
+ u32 rcpi, ib_rssi, wb_rssi, v20, v21;
+ s32 foe;
+ u8 snr;
+ int i;
+
+ rcpi = le32_to_cpu(rxv[6]);
+ ib_rssi = le32_to_cpu(rxv[7]);
+ wb_rssi = le32_to_cpu(rxv[8]) >> 5;
+
+ for (i = 0; i < 4; i++, rcpi >>= 8, ib_rssi >>= 8, wb_rssi >>= 9) {
+ if (i == 3)
+ wb_rssi = le32_to_cpu(rxv[9]);
+
+ dev->test.last_rcpi[i] = rcpi & 0xff;
+ dev->test.last_ib_rssi[i] = ib_rssi & 0xff;
+ dev->test.last_wb_rssi[i] = wb_rssi & 0xff;
+ }
+
+ v20 = le32_to_cpu(rxv[20]);
+ v21 = le32_to_cpu(rxv[21]);
+
+ foe = FIELD_GET(MT_CRXV_FOE_LO, v20) |
+ (FIELD_GET(MT_CRXV_FOE_HI, v21) << MT_CRXV_FOE_SHIFT);
+
+ snr = FIELD_GET(MT_CRXV_SNR, v20) - 16;
+
+ dev->test.last_freq_offset = foe;
+ dev->test.last_snr = snr;
+
+ dev_kfree_skb(skb);
+#endif
+}
+
static u16
mt7915_mac_tx_rate_val(struct mt76_phy *mphy, u8 mode, u8 rate_idx,
u8 nss, u8 stbc, u8 *bw)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
index 0921b6f..d420392 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
@@ -128,6 +128,11 @@ enum rx_pkt_type {
#define MT_CRXV_HE_BEAM_CHNG BIT(13)
#define MT_CRXV_HE_DOPPLER BIT(16)
+#define MT_CRXV_SNR GENMASK(18, 13)
+#define MT_CRXV_FOE_LO GENMASK(31, 19)
+#define MT_CRXV_FOE_HI GENMASK(6, 0)
+#define MT_CRXV_FOE_SHIFT 13
+
enum tx_header_format {
MT_HDR_FORMAT_802_3,
MT_HDR_FORMAT_CMD,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index 0a7e9d2..89453a6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -48,6 +48,7 @@ enum {
enum {
MCU_ATE_SET_TRX = 0x1,
+ MCU_ATE_SET_RX_FILTER = 0x3,
};
struct mt7915_mcu_rxd {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 6735915..fd7de79 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -165,6 +165,12 @@ struct mt7915_dev {
struct {
u32 *reg_backup;
+ s32 last_freq_offset;
+ u8 last_rcpi[4];
+ s8 last_ib_rssi[4];
+ s8 last_wb_rssi[4];
+ u8 last_snr;
+
u8 spe_idx;
} test;
#endif
@@ -436,6 +442,7 @@ void mt7915_mac_write_txwi(struct mt7915_dev *dev, __le32 *txwi,
struct ieee80211_key_conf *key, bool beacon);
void mt7915_mac_set_timing(struct mt7915_phy *phy);
int mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb);
+void mt7915_mac_fill_rx_vector(struct mt7915_dev *dev, struct sk_buff *skb);
void mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb);
int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
index 5d95766..acab268 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
@@ -113,6 +113,31 @@ mt7915_tm_reg_backup_restore(struct mt7915_dev *dev, struct mt7915_phy *phy)
mt76_clear(dev, MT_TMAC_TCR0(0), MT_TMAC_TCR0_TBTT_STOP_CTRL);
}
+static int
+mt7915_tm_config_rx_filter(struct mt7915_dev *dev, bool en)
+{
+ struct mt7915_tm_cmd req = {
+ .testmode_en = 1,
+ .param_idx = MCU_ATE_SET_RX_FILTER,
+ .param.filter.report_en = en,
+ .param.filter.band = 0, /* TODO: support dbdc */
+ };
+ __le32 mask = RX_FILTER_NOT_OWN_BTIM |
+ RX_FILTER_NOT_OWN_UCAST |
+ RX_FILTER_RTS | RX_FILTER_CTS |
+ RX_FILTER_CTRL_RSV |
+ RX_FILTER_BC_MC_BSSID_A2 |
+ RX_FILTER_BC_MC_BSSID_A3 |
+ RX_FILTER_BC_MC_OMAC_A3 |
+ RX_FILTER_PROTOCOL_VERSION |
+ RX_FILTER_FCS_ERR;
+
+ req.param.filter.mask = cpu_to_le32(mask);
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_ATE_CTRL, &req,
+ sizeof(req), false);
+}
+
static void
mt7915_tm_init(struct mt7915_dev *dev)
{
@@ -124,6 +149,7 @@ mt7915_tm_init(struct mt7915_dev *dev)
mt7915_tm_mode_ctrl(dev, en);
mt7915_tm_reg_backup_restore(dev, &dev->phy);
mt7915_tm_set_trx(dev, &dev->phy, TM_MAC_TXRX, !en);
+ mt7915_tm_config_rx_filter(dev, en);
}
static void
@@ -156,6 +182,20 @@ mt7915_tm_set_tx_frames(struct mt7915_dev *dev, bool en)
info->control.vif = dev->phy.monitor_vif;
}
+static void
+mt7915_tm_set_rx_frames(struct mt7915_dev *dev, bool en)
+{
+ if (en) {
+ mutex_unlock(&dev->mt76.mutex);
+ mt7915_set_channel(&dev->phy);
+ mutex_lock(&dev->mt76.mutex);
+
+ mt7915_mcu_set_chan_info(&dev->phy, MCU_EXT_CMD_SET_RX_PATH);
+ }
+
+ mt7915_tm_set_trx(dev, &dev->phy, TM_MAC_RX_RXV, en);
+}
+
static int
mt7915_tm_set_state(struct mt76_dev *mdev, enum mt76_testmode_state state)
{
@@ -169,12 +209,69 @@ mt7915_tm_set_state(struct mt76_dev *mdev, enum mt76_testmode_state state)
mt7915_tm_set_tx_frames(dev, false);
else if (state == MT76_TM_STATE_TX_FRAMES)
mt7915_tm_set_tx_frames(dev, true);
+ else if (prev_state == MT76_TM_STATE_RX_FRAMES)
+ mt7915_tm_set_rx_frames(dev, false);
+ else if (state == MT76_TM_STATE_RX_FRAMES)
+ mt7915_tm_set_rx_frames(dev, true);
else if (prev_state == MT76_TM_STATE_OFF || state == MT76_TM_STATE_OFF)
mt7915_tm_init(dev);
return 0;
}
+static int
+mt7915_tm_dump_stats(struct mt76_dev *mdev, struct sk_buff *msg)
+{
+ struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
+ void *rx, *rssi;
+ int i;
+
+ rx = nla_nest_start(msg, MT76_TM_STATS_ATTR_LAST_RX);
+ if (!rx)
+ return -ENOMEM;
+
+ if (nla_put_s32(msg, MT76_TM_RX_ATTR_FREQ_OFFSET, dev->test.last_freq_offset))
+ return -ENOMEM;
+
+ rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_RCPI);
+ if (!rssi)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(dev->test.last_rcpi); i++)
+ if (nla_put_u8(msg, i, dev->test.last_rcpi[i]))
+ return -ENOMEM;
+
+ nla_nest_end(msg, rssi);
+
+ rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_IB_RSSI);
+ if (!rssi)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(dev->test.last_ib_rssi); i++)
+ if (nla_put_s8(msg, i, dev->test.last_ib_rssi[i]))
+ return -ENOMEM;
+
+ nla_nest_end(msg, rssi);
+
+ rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_WB_RSSI);
+ if (!rssi)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(dev->test.last_wb_rssi); i++)
+ if (nla_put_s8(msg, i, dev->test.last_wb_rssi[i]))
+ return -ENOMEM;
+
+ nla_nest_end(msg, rssi);
+
+ if (nla_put_u8(msg, MT76_TM_RX_ATTR_SNR, dev->test.last_snr))
+ return -ENOMEM;
+
+ nla_nest_end(msg, rx);
+
+ return 0;
+}
+
const struct mt76_testmode_ops mt7915_testmode_ops = {
.set_state = mt7915_tm_set_state,
+ .dump_stats = mt7915_tm_dump_stats,
};
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.h b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.h
index 04f4a2c..b344a64 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.h
@@ -11,6 +11,15 @@ struct mt7915_tm_trx {
u8 rsv;
};
+struct mt7915_tm_rx_filter {
+ u8 promiscuous;
+ u8 report_en;
+ u8 band;
+ u8 _rsv;
+ __le32 mask;
+ u8 _rsv1[4];
+};
+
struct mt7915_tm_cmd {
u8 testmode_en;
u8 param_idx;
@@ -18,6 +27,7 @@ struct mt7915_tm_cmd {
union {
__le32 data;
struct mt7915_tm_trx trx;
+ struct mt7915_tm_rx_filter filter;
u8 test[72];
} param;
} __packed;
@@ -31,4 +41,24 @@ enum {
TM_MAC_RX_RXV,
};
+#define RX_FILTER_STBC_BCN_BC_MC BIT(0)
+#define RX_FILTER_FCS_ERR BIT(1)
+#define RX_FILTER_PROTOCOL_VERSION BIT(2)
+#define RX_FILTER_PROB_REQ BIT(3)
+#define RX_FILTER_MCAST BIT(4)
+#define RX_FILTER_BCAST BIT(5)
+#define RX_FILTER_MCAST_TABLE BIT(6)
+#define RX_FILTER_BC_MC_OMAC_A3 BIT(7)
+#define RX_FILTER_BC_MC_BSSID_A3 BIT(8)
+#define RX_FILTER_BC_MC_BSSID_A2 BIT(9)
+#define RX_FILTER_BCN_BSSID BIT(10)
+#define RX_FILTER_CTRL_RSV BIT(11)
+#define RX_FILTER_CTS BIT(12)
+#define RX_FILTER_RTS BIT(13)
+#define RX_FILTER_DUPLICATE BIT(14)
+#define RX_FILTER_NOT_OWN_BSSID BIT(15)
+#define RX_FILTER_NOT_OWN_UCAST BIT(16)
+#define RX_FILTER_NOT_OWN_BTIM BIT(17)
+#define RX_FILTER_NDPA BIT(18)
+
#endif
--
2.17.1
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