From: Deren Wu <deren.wu@mediatek.com>
Date: Thu, 16 Dec 2021 17:02:09 +0000 (+0800)
Subject: mt76: mt7921s: fix cmd timeout in throughput test
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b1460bb4eadf4b0bf5afe79fb4d25b9d985f2879;p=linux.git

mt76: mt7921s: fix cmd timeout in throughput test

During heavy loading throughtput test, the RX buffer (128)
would be exhausted and some RX pkts dropped randomly. Increase
buffer size from 128 to 512 (a safer length) to avoid tput degrade
or cmd-timeout problem.

Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 8edbf42b45262..404c3d1a70d69 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -497,6 +497,8 @@ struct mt76_usb {
 };
 
 #define MT76S_XMIT_BUF_SZ	(16 * PAGE_SIZE)
+#define MT76S_NUM_TX_ENTRIES	256
+#define MT76S_NUM_RX_ENTRIES	512
 struct mt76_sdio {
 	struct mt76_worker txrx_worker;
 	struct mt76_worker status_worker;
diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index b0bc7be0fb1fc..54f72d2159483 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -305,12 +305,12 @@ int mt76s_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid)
 
 	spin_lock_init(&q->lock);
 	q->entry = devm_kcalloc(dev->dev,
-				MT_NUM_RX_ENTRIES, sizeof(*q->entry),
+				MT76S_NUM_RX_ENTRIES, sizeof(*q->entry),
 				GFP_KERNEL);
 	if (!q->entry)
 		return -ENOMEM;
 
-	q->ndesc = MT_NUM_RX_ENTRIES;
+	q->ndesc = MT76S_NUM_RX_ENTRIES;
 	q->head = q->tail = 0;
 	q->queued = 0;
 
@@ -328,12 +328,12 @@ static struct mt76_queue *mt76s_alloc_tx_queue(struct mt76_dev *dev)
 
 	spin_lock_init(&q->lock);
 	q->entry = devm_kcalloc(dev->dev,
-				MT_NUM_TX_ENTRIES, sizeof(*q->entry),
+				MT76S_NUM_TX_ENTRIES, sizeof(*q->entry),
 				GFP_KERNEL);
 	if (!q->entry)
 		return ERR_PTR(-ENOMEM);
 
-	q->ndesc = MT_NUM_TX_ENTRIES;
+	q->ndesc = MT76S_NUM_TX_ENTRIES;
 
 	return q;
 }