From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/wireless/mediatek/mt76/agg-rx.c | 70 ++++++++++++++++------------------
1 files changed, 33 insertions(+), 37 deletions(-)
diff --git a/kernel/drivers/net/wireless/mediatek/mt76/agg-rx.c b/kernel/drivers/net/wireless/mediatek/mt76/agg-rx.c
index 97df6b3..df25c00 100644
--- a/kernel/drivers/net/wireless/mediatek/mt76/agg-rx.c
+++ b/kernel/drivers/net/wireless/mediatek/mt76/agg-rx.c
@@ -1,21 +1,16 @@
+// SPDX-License-Identifier: ISC
/*
* Copyright (C) 2018 Felix Fietkau <nbd@nbd.name>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "mt76.h"
-#define REORDER_TIMEOUT (HZ / 10)
+static unsigned long mt76_aggr_tid_to_timeo(u8 tidno)
+{
+ /* Currently voice traffic (AC_VO) always runs without aggregation,
+ * no special handling is needed. AC_BE/AC_BK use tids 0-3. Just check
+ * for non AC_BK/AC_BE and set smaller timeout for it. */
+ return HZ / (tidno >= 4 ? 25 : 10);
+}
static void
mt76_aggr_release(struct mt76_rx_tid *tid, struct sk_buff_head *frames, int idx)
@@ -34,8 +29,9 @@
}
static void
-mt76_rx_aggr_release_frames(struct mt76_rx_tid *tid, struct sk_buff_head *frames,
- u16 head)
+mt76_rx_aggr_release_frames(struct mt76_rx_tid *tid,
+ struct sk_buff_head *frames,
+ u16 head)
{
int idx;
@@ -74,15 +70,15 @@
for (idx = (tid->head + 1) % tid->size;
idx != start && nframes;
idx = (idx + 1) % tid->size) {
-
skb = tid->reorder_buf[idx];
if (!skb)
continue;
nframes--;
- status = (struct mt76_rx_status *) skb->cb;
- if (!time_after(jiffies, status->reorder_time +
- REORDER_TIMEOUT))
+ status = (struct mt76_rx_status *)skb->cb;
+ if (!time_after(jiffies,
+ status->reorder_time +
+ mt76_aggr_tid_to_timeo(tid->num)))
continue;
mt76_rx_aggr_release_frames(tid, frames, status->seqno);
@@ -112,7 +108,7 @@
if (nframes)
ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work,
- REORDER_TIMEOUT);
+ mt76_aggr_tid_to_timeo(tid->num));
mt76_rx_complete(dev, &frames, NULL);
rcu_read_unlock();
@@ -122,8 +118,8 @@
static void
mt76_rx_aggr_check_ctl(struct sk_buff *skb, struct sk_buff_head *frames)
{
- struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;
- struct ieee80211_bar *bar = (struct ieee80211_bar *) skb->data;
+ struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
+ struct ieee80211_bar *bar = mt76_skb_get_hdr(skb);
struct mt76_wcid *wcid = status->wcid;
struct mt76_rx_tid *tid;
u16 seqno;
@@ -135,21 +131,23 @@
return;
status->tid = le16_to_cpu(bar->control) >> 12;
- seqno = le16_to_cpu(bar->start_seq_num) >> 4;
+ seqno = IEEE80211_SEQ_TO_SN(le16_to_cpu(bar->start_seq_num));
tid = rcu_dereference(wcid->aggr[status->tid]);
if (!tid)
return;
spin_lock_bh(&tid->lock);
- mt76_rx_aggr_release_frames(tid, frames, seqno);
- mt76_rx_aggr_release_head(tid, frames);
+ if (!tid->stopped) {
+ mt76_rx_aggr_release_frames(tid, frames, seqno);
+ mt76_rx_aggr_release_head(tid, frames);
+ }
spin_unlock_bh(&tid->lock);
}
void mt76_rx_aggr_reorder(struct sk_buff *skb, struct sk_buff_head *frames)
{
- struct mt76_rx_status *status = (struct mt76_rx_status *) skb->cb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
+ struct ieee80211_hdr *hdr = mt76_skb_get_hdr(skb);
struct mt76_wcid *wcid = status->wcid;
struct ieee80211_sta *sta;
struct mt76_rx_tid *tid;
@@ -233,7 +231,8 @@
tid->nframes++;
mt76_rx_aggr_release_head(tid, frames);
- ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work, REORDER_TIMEOUT);
+ ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work,
+ mt76_aggr_tid_to_timeo(tid->num));
out:
spin_unlock_bh(&tid->lock);
@@ -253,6 +252,7 @@
tid->dev = dev;
tid->head = ssn;
tid->size = size;
+ tid->num = tidno;
INIT_DELAYED_WORK(&tid->reorder_work, mt76_rx_aggr_reorder_work);
spin_lock_init(&tid->lock);
@@ -266,8 +266,6 @@
{
u16 size = tid->size;
int i;
-
- cancel_delayed_work(&tid->reorder_work);
spin_lock_bh(&tid->lock);
@@ -284,21 +282,19 @@
}
spin_unlock_bh(&tid->lock);
+
+ cancel_delayed_work_sync(&tid->reorder_work);
}
void mt76_rx_aggr_stop(struct mt76_dev *dev, struct mt76_wcid *wcid, u8 tidno)
{
- struct mt76_rx_tid *tid;
+ struct mt76_rx_tid *tid = NULL;
- rcu_read_lock();
-
- tid = rcu_dereference(wcid->aggr[tidno]);
+ tid = rcu_replace_pointer(wcid->aggr[tidno], tid,
+ lockdep_is_held(&dev->mutex));
if (tid) {
- rcu_assign_pointer(wcid->aggr[tidno], NULL);
mt76_rx_aggr_shutdown(dev, tid);
kfree_rcu(tid, rcu_head);
}
-
- rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(mt76_rx_aggr_stop);
--
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