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From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 20 May 2022 20:11:31 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: rely on txd_size in txd_to_idx
This is a preliminary patch to add mt7986 ethernet support.
Tested-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -906,9 +906,10 @@ static struct mtk_tx_dma *qdma_to_pdma(s
return ring->dma_pdma - ring->dma + dma;
}
-static int txd_to_idx(struct mtk_tx_ring *ring, struct mtk_tx_dma *dma)
+static int txd_to_idx(struct mtk_tx_ring *ring, struct mtk_tx_dma *dma,
+ u32 txd_size)
{
- return ((void *)dma - (void *)ring->dma) / sizeof(*dma);
+ return ((void *)dma - (void *)ring->dma) / txd_size;
}
static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf,
@@ -1124,8 +1125,10 @@ static int mtk_tx_map(struct sk_buff *sk
!netdev_xmit_more())
mtk_w32(eth, txd->txd2, MTK_QTX_CTX_PTR);
} else {
- int next_idx = NEXT_DESP_IDX(txd_to_idx(ring, txd),
- ring->dma_size);
+ int next_idx;
+
+ next_idx = NEXT_DESP_IDX(txd_to_idx(ring, txd, soc->txrx.txd_size),
+ ring->dma_size);
mtk_w32(eth, next_idx, MT7628_TX_CTX_IDX0);
}
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