netdev - [PATCH 2/4] wifi: mt76: dma: reset wed queues in mt76_dma_rx

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Message-Id: <780d576a44c7f241886aaf8b3dd5eb51a879dfcd.1673103214.git.lorenzo@kernel.org>
Date:   Sat,  7 Jan 2023 16:00:37 +0100
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     linux-wireless@...r.kernel.org
Cc:     netdev@...r.kernel.org, lorenzo.bianconi@...hat.com, nbd@....name,
        sujuan.chen@...iatek.com, daniel@...rotopia.org, leon@...nel.org
Subject: [PATCH 2/4] wifi: mt76: dma: reset wed queues in mt76_dma_rx_reset

From: Sujuan Chen <sujuan.chen@...iatek.com>

This is a preliminary patch to introduce proper wed reset support.

Tested-by: Daniel Golle <daniel@...rotopia.org>
Co-developed-by: Lorenzo Bianconi <lorenzo@...nel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
Signed-off-by: Sujuan Chen <sujuan.chen@...iatek.com>
---
 drivers/net/wireless/mediatek/mt76/dma.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 5629b949fac0..93c42082f1c2 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -766,8 +766,13 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)
 		q->desc[i].ctrl = cpu_to_le32(MT_DMA_CTL_DMA_DONE);
 
 	mt76_dma_rx_cleanup(dev, q);
-	mt76_dma_sync_idx(dev, q);
-	mt76_dma_rx_fill(dev, q, false);
+
+	/* reset WED rx queues */
+	mt76_dma_wed_setup(dev, q, true);
+	if (q->flags != MT_WED_Q_TXFREE) {
+		mt76_dma_sync_idx(dev, q);
+		mt76_dma_rx_fill(dev, q, false);
+	}
 }
 
 static void
-- 
2.39.0