netdev - [PATCH net-next 3/5] net: ethernet: mtk_wed: update mtk_wed

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Date:   Mon, 21 Nov 2022 09:59:23 +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 net-next 3/5] net: ethernet: mtk_wed: update mtk_wed_stop

Update mtk_wed_stop routine and rename old mtk_wed_stop() to
mtk_wed_deinit(). 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 | 32 ++++++++++++++++++-------
 include/linux/soc/mediatek/mtk_wed.h    |  4 ++++
 2 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 0fb51fb31407..f43652e72728 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -539,14 +539,8 @@ mtk_wed_dma_disable(struct mtk_wed_device *dev)
 static void
 mtk_wed_stop(struct mtk_wed_device *dev)
 {
-	mtk_wed_dma_disable(dev);
 	mtk_wed_set_ext_int(dev, false);
 
-	wed_clr(dev, MTK_WED_CTRL,
-		MTK_WED_CTRL_WDMA_INT_AGENT_EN |
-		MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
-		MTK_WED_CTRL_WED_TX_BM_EN |
-		MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
 	wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER, 0);
 	wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, 0);
 	wdma_w32(dev, MTK_WDMA_INT_MASK, 0);
@@ -558,7 +552,27 @@ mtk_wed_stop(struct mtk_wed_device *dev)
 
 	wed_w32(dev, MTK_WED_EXT_INT_MASK1, 0);
 	wed_w32(dev, MTK_WED_EXT_INT_MASK2, 0);
-	wed_clr(dev, MTK_WED_CTRL, MTK_WED_CTRL_WED_RX_BM_EN);
+}
+
+static void
+mtk_wed_deinit(struct mtk_wed_device *dev)
+{
+	mtk_wed_stop(dev);
+	mtk_wed_dma_disable(dev);
+
+	wed_clr(dev, MTK_WED_CTRL,
+		MTK_WED_CTRL_WDMA_INT_AGENT_EN |
+		MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
+		MTK_WED_CTRL_WED_TX_BM_EN |
+		MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
+
+	if (dev->hw->version == 1)
+		return;
+
+	wed_clr(dev, MTK_WED_CTRL,
+		MTK_WED_CTRL_RX_ROUTE_QM_EN |
+		MTK_WED_CTRL_WED_RX_BM_EN |
+		MTK_WED_CTRL_RX_RRO_QM_EN);
 }
 
 static void
@@ -568,7 +582,7 @@ mtk_wed_detach(struct mtk_wed_device *dev)
 
 	mutex_lock(&hw_lock);
 
-	mtk_wed_stop(dev);
+	mtk_wed_deinit(dev);
 
 	mtk_wdma_rx_reset(dev);
 	mtk_wed_reset(dev, MTK_WED_RESET_WED);
@@ -670,7 +684,7 @@ mtk_wed_hw_init_early(struct mtk_wed_device *dev)
 {
 	u32 mask, set;
 
-	mtk_wed_stop(dev);
+	mtk_wed_deinit(dev);
 	mtk_wed_reset(dev, MTK_WED_RESET_WED);
 	mtk_wed_set_wpdma(dev);
 
diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
index 8294978f4bca..0bbba50cf929 100644
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -231,6 +231,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
 	(_dev)->ops->ppe_check(_dev, _skb, _reason, _hash)
 #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) \
 	(_dev)->ops->msg_update(_dev, _id, _msg, _len)
+#define mtk_wed_device_stop(_dev) (_dev)->ops->stop(_dev)
+#define mtk_wed_device_dma_reset(_dev) (_dev)->ops->reset_dma(_dev)
 #else
 static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 {
@@ -247,6 +249,8 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 #define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) -ENODEV
 #define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash)  do {} while (0)
 #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) -ENODEV
+#define mtk_wed_device_stop(_dev) do {} while (0)
+#define mtk_wed_device_dma_reset(_dev) do {} while (0)
 #endif
 
 #endif
-- 
2.38.1