[PATCH mt76 03/11] wifi: mt76: always enable RRO queues for non-MT7992 chipset

[Lorenzo Bianconi]

MT7996 NPU binary requires to initialize NPU desc_base after configuring
ring_size. This is a preliminary patch to enable NPU offload for MT7996
(7990-Eagle) chipset.

Tested-by: Hui Ma <hui.ma at airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 drivers/net/wireless/mediatek/mt76/dma.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index f240016ed9f0ead27e98e350f4fdb818e1686781..fc2ac463e4e78872f9e4e7dacbdaa34bac383fb7 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -6,6 +6,7 @@
 #include <linux/dma-mapping.h>
 #include "mt76.h"
 #include "dma.h"
+#include "mt76_connac.h"
 
 static struct mt76_txwi_cache *
 mt76_alloc_txwi(struct mt76_dev *dev)
@@ -188,16 +189,18 @@ mt76_dma_queue_magic_cnt_init(struct mt76_dev *dev, struct mt76_queue *q)
 static void
 mt76_dma_sync_idx(struct mt76_dev *dev, struct mt76_queue *q)
 {
-	Q_WRITE(q, desc_base, q->desc_dma);
-	if ((q->flags & MT_QFLAG_WED_RRO_EN) && !mt76_npu_device_active(dev))
+	if ((q->flags & MT_QFLAG_WED_RRO_EN) &&
+	    (!is_mt7992(dev) || !mt76_npu_device_active(dev)))
 		Q_WRITE(q, ring_size, MT_DMA_RRO_EN | q->ndesc);
 	else
 		Q_WRITE(q, ring_size, q->ndesc);
 
 	if (mt76_queue_is_npu_tx(q)) {
-		writel(q->desc_dma, &q->regs->desc_base);
 		writel(q->ndesc, &q->regs->ring_size);
+		writel(q->desc_dma, &q->regs->desc_base);
 	}
+
+	Q_WRITE(q, desc_base, q->desc_dma);
 	q->head = Q_READ(q, dma_idx);
 	q->tail = q->head;
 }

-- 
2.52.0