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mt76: backport mt7603 fixes important for its stability

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Those are required for stable MT7603E & on-SoC MT7628/MT7688 wireless
support. After mt76 receiving more testing we may just update codebase
and drop those backports.

Fixes: https://github.com/openwrt/mt76/issues/865
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2024-05-16 14:11:24 +02:00
parent ffd0074694
commit 2568b30285
3 changed files with 124 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
package/kernel/mt76/Makefile
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@ -1,7 +1,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=mt76
PKG_RELEASE=1
PKG_RELEASE=2
PKG_LICENSE:=GPLv2
PKG_LICENSE_FILES:=

99
package/kernel/mt76/patches/0007-wifi-mt76-mt7603-fix-tx-queue-of-loopback-packets.patch Normal file
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@ -0,0 +1,99 @@
From e4de3592c4e3baa82142eff583cb5a761f790709 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Tue, 2 Apr 2024 20:14:34 +0200
Subject: [PATCH] wifi: mt76: mt7603: fix tx queue of loopback packets
Use the correct WMM AC queue instead of the MGMT one to fix potential issues
with aggregation sequence number tracking. Drop non-bufferable packets.
Fixes: fca9615f1a43 ("mt76: mt7603: fix up hardware queue index for PS filtered packets")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
mt7603/dma.c | 46 ++++++++++++++++++++++++++++++++--------------
1 file changed, 32 insertions(+), 14 deletions(-)
--- a/mt7603/dma.c
+++ b/mt7603/dma.c
@@ -4,6 +4,13 @@
#include "mac.h"
#include "../dma.h"
+static const u8 wmm_queue_map[] = {
+ [IEEE80211_AC_BK] = 0,
+ [IEEE80211_AC_BE] = 1,
+ [IEEE80211_AC_VI] = 2,
+ [IEEE80211_AC_VO] = 3,
+};
+
static void
mt7603_rx_loopback_skb(struct mt7603_dev *dev, struct sk_buff *skb)
{
@@ -22,10 +29,10 @@ mt7603_rx_loopback_skb(struct mt7603_dev
struct ieee80211_sta *sta;
struct mt7603_sta *msta;
struct mt76_wcid *wcid;
+ u8 tid = 0, hwq = 0;
void *priv;
int idx;
u32 val;
- u8 tid = 0;
if (skb->len < MT_TXD_SIZE + sizeof(struct ieee80211_hdr))
goto free;
@@ -42,19 +49,36 @@ mt7603_rx_loopback_skb(struct mt7603_dev
goto free;
priv = msta = container_of(wcid, struct mt7603_sta, wcid);
- val = le32_to_cpu(txd[0]);
- val &= ~(MT_TXD0_P_IDX | MT_TXD0_Q_IDX);
- val |= FIELD_PREP(MT_TXD0_Q_IDX, MT_TX_HW_QUEUE_MGMT);
- txd[0] = cpu_to_le32(val);
sta = container_of(priv, struct ieee80211_sta, drv_priv);
hdr = (struct ieee80211_hdr *)&skb->data[MT_TXD_SIZE];
- if (ieee80211_is_data_qos(hdr->frame_control))
+
+ hwq = wmm_queue_map[IEEE80211_AC_BE];
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
tid = *ieee80211_get_qos_ctl(hdr) &
- IEEE80211_QOS_CTL_TAG1D_MASK;
- skb_set_queue_mapping(skb, tid_to_ac[tid]);
+ IEEE80211_QOS_CTL_TAG1D_MASK;
+ u8 qid = tid_to_ac[tid];
+ hwq = wmm_queue_map[qid];
+ skb_set_queue_mapping(skb, qid);
+ } else if (ieee80211_is_data(hdr->frame_control)) {
+ skb_set_queue_mapping(skb, IEEE80211_AC_BE);
+ hwq = wmm_queue_map[IEEE80211_AC_BE];
+ } else {
+ skb_pull(skb, MT_TXD_SIZE);
+ if (!ieee80211_is_bufferable_mmpdu(skb))
+ goto free;
+ skb_push(skb, MT_TXD_SIZE);
+ skb_set_queue_mapping(skb, MT_TXQ_PSD);
+ hwq = MT_TX_HW_QUEUE_MGMT;
+ }
+
ieee80211_sta_set_buffered(sta, tid, true);
+ val = le32_to_cpu(txd[0]);
+ val &= ~(MT_TXD0_P_IDX | MT_TXD0_Q_IDX);
+ val |= FIELD_PREP(MT_TXD0_Q_IDX, hwq);
+ txd[0] = cpu_to_le32(val);
+
spin_lock_bh(&dev->ps_lock);
__skb_queue_tail(&msta->psq, skb);
if (skb_queue_len(&msta->psq) >= 64) {
@@ -151,12 +175,6 @@ static int mt7603_poll_tx(struct napi_st
int mt7603_dma_init(struct mt7603_dev *dev)
{
- static const u8 wmm_queue_map[] = {
- [IEEE80211_AC_BK] = 0,
- [IEEE80211_AC_BE] = 1,
- [IEEE80211_AC_VI] = 2,
- [IEEE80211_AC_VO] = 3,
- };
int ret;
int i;

24
package/kernel/mt76/patches/0008-wifi-mt76-mt7603-add-wpdma-tx-eof-flag-for-PSE-clien.patch Normal file
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@ -0,0 +1,24 @@
From 446f652c967c11d50d9005e2acec97f8b577bb92 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 3 Apr 2024 11:11:54 +0200
Subject: [PATCH] wifi: mt76: mt7603: add wpdma tx eof flag for PSE client
reset
This flag is needed for the PSE client reset. Fixes watchdog reset issues.
Fixes: c677dda16523 ("wifi: mt76: mt7603: improve watchdog reset reliablity")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
mt7603/mac.c | 1 +
1 file changed, 1 insertion(+)
--- a/mt7603/mac.c
+++ b/mt7603/mac.c
@@ -1393,6 +1393,7 @@ void mt7603_pse_client_reset(struct mt76
MT_CLIENT_RESET_TX_R_E_2_S);
/* Start PSE client TX abort */
+ mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_FORCE_TX_EOF);
mt76_set(dev, addr, MT_CLIENT_RESET_TX_R_E_1);
mt76_poll_msec(dev, addr, MT_CLIENT_RESET_TX_R_E_1_S,
MT_CLIENT_RESET_TX_R_E_1_S, 500);