diff mbox series

[04/12] wifi: mt76: mt7915: txfree status to show txcount instead of latency

Message ID 20220727230122.29842-4-greearb@candelatech.com (mailing list archive)
State Superseded
Delegated to: Felix Fietkau
Headers show
Series [01/12] wifi: mt76: mt7915: cache sgi in wcid. | expand

Commit Message

Ben Greear July 27, 2022, 11:01 p.m. UTC 
From: Ben Greear <greearb@candelatech.com>

Latency is not obviously that useful, but txcount can let us deduce
retries, which may be more interesting.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
 drivers/net/wireless/mediatek/mt76/mt7915/init.c | 3 +++
 drivers/net/wireless/mediatek/mt76/mt7915/mac.h  | 6 +++++-
 drivers/net/wireless/mediatek/mt76/mt7915/regs.h | 4 ++++
 3 files changed, 12 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 91a31b9d52f2..b4ceb78c6745 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -460,6 +460,9 @@  static void mt7915_mac_init(struct mt7915_dev *dev)
 	/* enable hardware de-agg */
 	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
 
+	/* disable Tx latency report to enable Tx count in txfree path */
+	mt76_clear(dev, MT_PLE_HOST_RPT0, MT_PLE_HOST_RPT0_TX_LATENCY);
+
 	for (i = 0; i < mt7915_wtbl_size(dev); i++)
 		mt7915_mac_wtbl_update(dev, i,
 				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
index 2e6c574ae2dd..503a4b90ad11 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
@@ -314,8 +314,12 @@  struct mt7915_tx_free {
 #define MT_TX_FREE_MSDU_CNT		GENMASK(9, 0)
 #define MT_TX_FREE_MSDU_CNT_V0	GENMASK(6, 0)
 #define MT_TX_FREE_WLAN_ID		GENMASK(23, 14)
+/* when configured for txfree latency mode.  See MT_PLE_HOST_RPT0_TX_LATENCY
+ * Not enabled by default now.
+ */
 #define MT_TX_FREE_LATENCY		GENMASK(12, 0)
-/* 0: success, others: dropped */
+/* when configured for txcount mode.  See MT_PLE_HOST_RPT0_TX_LATENCY. */
+#define MT_TX_FREE_TXCNT		GENMASK(12, 0)
 #define MT_TX_FREE_MSDU_ID		GENMASK(30, 16)
 #define MT_TX_FREE_PAIR			BIT(31)
 #define MT_TX_FREE_MPDU_HEADER		BIT(30)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
index 4953be208c5e..8bbc9a0ae699 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
@@ -132,6 +132,10 @@  enum offs_rev {
 #define MT_PLE_BASE			0x820c0000
 #define MT_PLE(ofs)			(MT_PLE_BASE + (ofs))
 
+/* Modify whether txfree struct returns latency or txcount. */
+#define MT_PLE_HOST_RPT0               MT_PLE(0x030)
+#define MT_PLE_HOST_RPT0_TX_LATENCY    BIT(3)
+
 #define MT_FL_Q_EMPTY			MT_PLE(__OFFS(PLE_FL_Q_EMPTY))
 #define MT_FL_Q0_CTRL			MT_PLE(__OFFS(PLE_FL_Q_CTRL))
 #define MT_FL_Q2_CTRL			MT_PLE(__OFFS(PLE_FL_Q_CTRL) + 0x8)