diff options
author | Lorenzo Bianconi <lorenzo@kernel.org> | 2022-05-20 21:11:29 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2022-05-23 00:24:32 +0300 |
commit | 0e05744beda4ae2d65100ed217e4bd50130b4078 (patch) | |
tree | a0506c76822714b6d1c2f8c0746fd29a136a2ab2 /drivers/net/ethernet | |
parent | eb067347aa87eaf8a42d945d3e877b1e8333f5ea (diff) | |
download | linux-0e05744beda4ae2d65100ed217e4bd50130b4078.tar.xz |
net: ethernet: mtk_eth_soc: rely on txd_size in mtk_tx_alloc/mtk_tx_clean
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>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index e00c83982aa9..331814f4801f 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -1592,8 +1592,10 @@ static int mtk_napi_rx(struct napi_struct *napi, int budget) static int mtk_tx_alloc(struct mtk_eth *eth) { + const struct mtk_soc_data *soc = eth->soc; struct mtk_tx_ring *ring = ð->tx_ring; - int i, sz = sizeof(*ring->dma); + int i, sz = soc->txrx.txd_size; + struct mtk_tx_dma *txd; ring->buf = kcalloc(MTK_DMA_SIZE, sizeof(*ring->buf), GFP_KERNEL); @@ -1609,8 +1611,10 @@ static int mtk_tx_alloc(struct mtk_eth *eth) int next = (i + 1) % MTK_DMA_SIZE; u32 next_ptr = ring->phys + next * sz; - ring->dma[i].txd2 = next_ptr; - ring->dma[i].txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU; + txd = (void *)ring->dma + i * sz; + txd->txd2 = next_ptr; + txd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU; + txd->txd4 = 0; } /* On MT7688 (PDMA only) this driver uses the ring->dma structs @@ -1632,7 +1636,7 @@ static int mtk_tx_alloc(struct mtk_eth *eth) ring->dma_size = MTK_DMA_SIZE; atomic_set(&ring->free_count, MTK_DMA_SIZE - 2); ring->next_free = &ring->dma[0]; - ring->last_free = &ring->dma[MTK_DMA_SIZE - 1]; + ring->last_free = (void *)txd; ring->last_free_ptr = (u32)(ring->phys + ((MTK_DMA_SIZE - 1) * sz)); ring->thresh = MAX_SKB_FRAGS; @@ -1665,6 +1669,7 @@ no_tx_mem: static void mtk_tx_clean(struct mtk_eth *eth) { + const struct mtk_soc_data *soc = eth->soc; struct mtk_tx_ring *ring = ð->tx_ring; int i; @@ -1677,17 +1682,15 @@ static void mtk_tx_clean(struct mtk_eth *eth) if (ring->dma) { dma_free_coherent(eth->dma_dev, - MTK_DMA_SIZE * sizeof(*ring->dma), - ring->dma, - ring->phys); + MTK_DMA_SIZE * soc->txrx.txd_size, + ring->dma, ring->phys); ring->dma = NULL; } if (ring->dma_pdma) { dma_free_coherent(eth->dma_dev, - MTK_DMA_SIZE * sizeof(*ring->dma_pdma), - ring->dma_pdma, - ring->phys_pdma); + MTK_DMA_SIZE * soc->txrx.txd_size, + ring->dma_pdma, ring->phys_pdma); ring->dma_pdma = NULL; } } |