From: greearb@candelatech.com
To: linux-wireless@vger.kernel.org
Cc: Ben Greear <greearb@candelatech.com>
Subject: [PATCH v3 09/11] mt76: mt7915: txfree status to show txcount instead of latency.
Date: Fri, 23 Jul 2021 09:06:21 -0700 [thread overview]
Message-ID: <20210723160623.14709-9-greearb@candelatech.com> (raw)
In-Reply-To: <20210723160623.14709-1-greearb@candelatech.com>
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 | 8 +++++---
drivers/net/wireless/mediatek/mt76/mt7915/regs.h | 4 ++++
3 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index f174cf219724..a0d282771d77 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -304,6 +304,9 @@ 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; 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 986a65badd1b..741d51b0fa06 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.h
@@ -304,13 +304,15 @@ struct mt7915_tx_free {
#define MT_TX_FREE_MSDU_CNT GENMASK(9, 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_STATUS GENMASK(14, 13)
#define MT_TX_FREE_MSDU_ID GENMASK(30, 16)
#define MT_TX_FREE_PAIR BIT(31)
-/* will support this field in further revision */
-#define MT_TX_FREE_RATE GENMASK(13, 0)
#define MT_TXS0_FIXED_RATE BIT(31)
#define MT_TXS0_BW GENMASK(30, 29)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
index 62cc32a098fc..ac4d233b8cf2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
@@ -22,6 +22,10 @@
#define MT_PLE_BASE 0x8000
#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_PLE_FL_Q0_CTRL MT_PLE(0x1b0)
#define MT_PLE_FL_Q1_CTRL MT_PLE(0x1b4)
#define MT_PLE_FL_Q2_CTRL MT_PLE(0x1b8)
--
2.20.1
next prev parent reply other threads:[~2021-07-23 16:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-23 16:06 [PATCH v3 01/11] mt76: add hash lookup for skb on TXS status_list greearb
2021-07-23 16:06 ` [PATCH v3 02/11] mt76 - mt7915: Fix potential NPE in TXS processing greearb
2021-07-23 16:06 ` [PATCH v3 03/11] mt76 - mt7915: Move TXS parsing to its own method greearb
2021-07-23 16:06 ` [PATCH v3 04/11] mt76 - mt7915: Allow processing TXS for 'NO_SKB' pkt-ids greearb
2021-07-23 16:06 ` [PATCH v3 05/11] mt76: mt7915: debugfs hook to enable TXS for NO_SKB pkt-ids greearb
2021-07-23 16:06 ` [PATCH v3 06/11] mt76: mt7915: Support parsing TXSFM 0x2 greearb
2021-07-23 16:06 ` [PATCH v3 07/11] mt76: mt7915: Add support for tx-overrides greearb
2021-07-23 16:06 ` [PATCH v3 08/11] mt76: mt7915: Fix SGI reporting when using tx-overrides greearb
2021-07-23 16:06 ` greearb [this message]
2021-07-23 16:06 ` [PATCH v3 10/11] mt76: mt7915: Report tx-retries greearb
2021-07-23 16:06 ` [PATCH v3 11/11] mt76: mt7915: add a missing HT flag for GI parsing greearb
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