netdev - [PATCH v2 net-next 2/5] net: ethernet: mtk_wed: move MTK_WDMA_RESET_IDX_TX configuration in mtk_wdma_tx

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Message-Id: <32ef50dc0c8c325279a110362ce8af2eaa0620a5.1669303154.git.lorenzo@kernel.org>
Date:   Thu, 24 Nov 2022 16:22:52 +0100
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     nbd@....name, john@...ozen.org, sean.wang@...iatek.com,
        Mark-MC.Lee@...iatek.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, lorenzo.bianconi@...hat.com,
        sujuan.chen@...iatek.com, linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 net-next 2/5] net: ethernet: mtk_wed: move MTK_WDMA_RESET_IDX_TX configuration in mtk_wdma_tx_reset

Remove duplicated code. Increase poll timeout to 10ms in order to be
aligned with vendor sdk.
This is a preliminary patch to add Wireless Ethernet Dispatcher reset
support.

Co-developed-by: Sujuan Chen <sujuan.chen@...iatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@...iatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index dc898ded2f05..0fb51fb31407 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -135,16 +135,15 @@ mtk_wdma_tx_reset(struct mtk_wed_device *dev)
 
 	wdma_clr(dev, MTK_WDMA_GLO_CFG, MTK_WDMA_GLO_CFG_TX_DMA_EN);
 	if (readx_poll_timeout(mtk_wdma_read_reset, dev, status,
-			       !(status & mask), 0, 1000))
+			       !(status & mask), 0, 10000))
 		dev_err(dev->hw->dev, "tx reset failed\n");
 
-	for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++) {
-		if (dev->tx_wdma[i].desc)
-			continue;
+	wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_TX);
+	wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
 
+	for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
 		wdma_w32(dev,
 			 MTK_WDMA_RING_TX(i) + MTK_WED_RING_OFS_CPU_IDX, 0);
-	}
 }
 
 static void
@@ -573,12 +572,6 @@ mtk_wed_detach(struct mtk_wed_device *dev)
 
 	mtk_wdma_rx_reset(dev);
 	mtk_wed_reset(dev, MTK_WED_RESET_WED);
-	if (mtk_wed_get_rx_capa(dev)) {
-		wdma_clr(dev, MTK_WDMA_GLO_CFG, MTK_WDMA_GLO_CFG_TX_DMA_EN);
-		wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_TX);
-		wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
-	}
-
 	mtk_wed_free_tx_buffer(dev);
 	mtk_wed_free_tx_rings(dev);
 
-- 
2.38.1