From 8ca7f4fe0733342c862b8585dd6eb6521b9bf533 Mon Sep 17 00:00:00 2001 From: "sean.wang@mediatek.com" Date: Tue, 16 Aug 2016 13:55:13 +0800 Subject: net: ethernet: mediatek: fix RMII mode and add REVMII supported by GMAC The patch fixes up the incorrect setup of reduced MII (RMII) on GMAC and adds the supplement for the setup of reverse MII (REVMII) on GMAC , and rearranges the error handling for invalid PHY argument. Signed-off-by: Sean Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 003036114a1c..bd0ea056405f 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -245,12 +245,16 @@ static int mtk_phy_connect(struct mtk_mac *mac) case PHY_INTERFACE_MODE_MII: ge_mode = 1; break; - case PHY_INTERFACE_MODE_RMII: + case PHY_INTERFACE_MODE_REVMII: ge_mode = 2; break; + case PHY_INTERFACE_MODE_RMII: + if (!mac->id) + goto err_phy; + ge_mode = 3; + break; default: - dev_err(eth->dev, "invalid phy_mode\n"); - return -1; + goto err_phy; } /* put the gmac into the right mode */ @@ -272,6 +276,11 @@ static int mtk_phy_connect(struct mtk_mac *mac) of_node_put(np); return 0; + +err_phy: + of_node_put(np); + dev_err(eth->dev, "invalid phy_mode\n"); + return -EINVAL; } static int mtk_mdio_init(struct mtk_eth *eth) -- cgit v1.2.3-59-g8ed1b From b2025c7cc92d5bfc8c5ce756c8d8a6f57c776fbd Mon Sep 17 00:00:00 2001 From: "sean.wang@mediatek.com" Date: Tue, 16 Aug 2016 13:55:14 +0800 Subject: net: ethernet: mediatek: fix flow control settings on GMAC0 is not being enabled properly Commit 08ef55c6f257acf3bdc6940813f80e8f0f5d90ec ("net-next: mediatek: fix gigabit and flow control advertisement") had supported proper flow control settings for GMAC1. But for GMAC0, 1.GMAC0 shares the common logic with GMAC1 inside mtk_phy_link_adjust() to adapt various settings for the target phy. 2.GMAC0 uses fixed-phy to connect to a builtin gigabit switch with fixed link speed as commit 0c72c50f6f93b0c3daa9ea35d89ab3a933c7b5a0 ("net-next: mediatek: add fixed-phy support") describes. 3.However, fixed-phy doesn't enable SUPPORTED_Pause & SUPPORTED_Asym_Pause supported flag on default that would cause mtk_phy_link_adjust() not to enable flow control setting on GMAC0 properly and cause packet dropped when high traffic. Due to these reasons, the patch adds SUPPORTED_Pause & SUPPORTED_Asym_Pause supported flags on fixed-phy used by the driver to have proper handling on the both GMAC with the shared common logic. Signed-off-by: Sean Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index bd0ea056405f..9901527a39df 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -267,6 +267,11 @@ static int mtk_phy_connect(struct mtk_mac *mac) mac->phy_dev->autoneg = AUTONEG_ENABLE; mac->phy_dev->speed = 0; mac->phy_dev->duplex = 0; + + if (of_phy_is_fixed_link(mac->of_node)) + mac->phy_dev->supported |= + SUPPORTED_Pause | SUPPORTED_Asym_Pause; + mac->phy_dev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause; mac->phy_dev->advertising = mac->phy_dev->supported | -- cgit v1.2.3-59-g8ed1b From 55a4e778191cfcf675aa1f9716edb71a3014d5fb Mon Sep 17 00:00:00 2001 From: "sean.wang@mediatek.com" Date: Tue, 16 Aug 2016 13:55:15 +0800 Subject: net: ethernet: mediatek: fix runtime warning raised by inconsistent struct device pointers passed to DMA API Runtime warning occurs if DMA-API debug feature is enabled that would be raised by pointers passed to DMA API as arguments to inconsistent struct device objects, so that the patch makes them usage aligned between DMA operations such as dma_map_*() and dma_unmap_*() to eliminate the warning. Signed-off-by: Sean Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 9901527a39df..f1609542adf1 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -558,15 +558,15 @@ static inline struct mtk_tx_buf *mtk_desc_to_tx_buf(struct mtk_tx_ring *ring, return &ring->buf[idx]; } -static void mtk_tx_unmap(struct device *dev, struct mtk_tx_buf *tx_buf) +static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf) { if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) { - dma_unmap_single(dev, + dma_unmap_single(eth->dev, dma_unmap_addr(tx_buf, dma_addr0), dma_unmap_len(tx_buf, dma_len0), DMA_TO_DEVICE); } else if (tx_buf->flags & MTK_TX_FLAGS_PAGE0) { - dma_unmap_page(dev, + dma_unmap_page(eth->dev, dma_unmap_addr(tx_buf, dma_addr0), dma_unmap_len(tx_buf, dma_len0), DMA_TO_DEVICE); @@ -611,9 +611,9 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, if (skb_vlan_tag_present(skb)) txd4 |= TX_DMA_INS_VLAN | skb_vlan_tag_get(skb); - mapped_addr = dma_map_single(&dev->dev, skb->data, + mapped_addr = dma_map_single(eth->dev, skb->data, skb_headlen(skb), DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(&dev->dev, mapped_addr))) + if (unlikely(dma_mapping_error(eth->dev, mapped_addr))) return -ENOMEM; WRITE_ONCE(itxd->txd1, mapped_addr); @@ -639,10 +639,10 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, n_desc++; frag_map_size = min(frag_size, MTK_TX_DMA_BUF_LEN); - mapped_addr = skb_frag_dma_map(&dev->dev, frag, offset, + mapped_addr = skb_frag_dma_map(eth->dev, frag, offset, frag_map_size, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(&dev->dev, mapped_addr))) + if (unlikely(dma_mapping_error(eth->dev, mapped_addr))) goto err_dma; if (i == nr_frags - 1 && @@ -695,7 +695,7 @@ err_dma: tx_buf = mtk_desc_to_tx_buf(ring, itxd); /* unmap dma */ - mtk_tx_unmap(&dev->dev, tx_buf); + mtk_tx_unmap(eth, tx_buf); itxd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU; itxd = mtk_qdma_phys_to_virt(ring, itxd->txd2); @@ -852,11 +852,11 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, netdev->stats.rx_dropped++; goto release_desc; } - dma_addr = dma_map_single(ð->netdev[mac]->dev, + dma_addr = dma_map_single(eth->dev, new_data + NET_SKB_PAD, ring->buf_size, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) { + if (unlikely(dma_mapping_error(eth->dev, dma_addr))) { skb_free_frag(new_data); netdev->stats.rx_dropped++; goto release_desc; @@ -871,7 +871,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, } skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); - dma_unmap_single(&netdev->dev, trxd.rxd1, + dma_unmap_single(eth->dev, trxd.rxd1, ring->buf_size, DMA_FROM_DEVICE); pktlen = RX_DMA_GET_PLEN0(trxd.rxd2); skb->dev = netdev; @@ -953,7 +953,7 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget) done[mac]++; budget--; } - mtk_tx_unmap(eth->dev, tx_buf); + mtk_tx_unmap(eth, tx_buf); ring->last_free = desc; atomic_inc(&ring->free_count); @@ -1108,7 +1108,7 @@ static void mtk_tx_clean(struct mtk_eth *eth) if (ring->buf) { for (i = 0; i < MTK_DMA_SIZE; i++) - mtk_tx_unmap(eth->dev, &ring->buf[i]); + mtk_tx_unmap(eth, &ring->buf[i]); kfree(ring->buf); ring->buf = NULL; } -- cgit v1.2.3-59-g8ed1b