Author: nbd Date: 2015-01-18 21:17:18 +0100 (Sun, 18 Jan 2015) New Revision: 44045
Modified: trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/soc_mt7620.c Log: ralink: correct handle hardware rx 2bytes offset Signed-off-by: michael lee <[email protected]> Modified: trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c =================================================================== --- trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c 2015-01-18 20:17:07 UTC (rev 44044) +++ trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c 2015-01-18 20:17:18 UTC (rev 44045) @@ -41,9 +41,8 @@ #include "ralink_ethtool.h" #define MAX_RX_LENGTH 1536 -#define FE_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN) -#define FE_RX_HLEN (FE_RX_OFFSET + VLAN_ETH_HLEN + VLAN_HLEN + \ - ETH_FCS_LEN) +#define FE_RX_HLEN (NET_SKB_PAD + VLAN_ETH_HLEN + VLAN_HLEN + \ + + NET_IP_ALIGN + ETH_FCS_LEN) #define DMA_DUMMY_DESC 0xffffffff #define FE_DEFAULT_MSG_ENABLE \ (NETIF_MSG_DRV | \ @@ -239,7 +238,7 @@ static int fe_alloc_rx(struct fe_priv *priv) { struct net_device *netdev = priv->netdev; - int i; + int i, pad; priv->rx_data = kcalloc(NUM_DMA_DESC, sizeof(*priv->rx_data), GFP_KERNEL); @@ -259,9 +258,13 @@ if (!priv->rx_dma) goto no_rx_mem; + if (priv->flags & FE_FLAG_RX_2B_OFFSET) + pad = 0; + else + pad = NET_IP_ALIGN; for (i = 0; i < NUM_DMA_DESC; i++) { dma_addr_t dma_addr = dma_map_single(&netdev->dev, - priv->rx_data[i] + FE_RX_OFFSET, + priv->rx_data[i] + NET_SKB_PAD + pad, priv->rx_buf_size, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) @@ -752,7 +755,7 @@ struct sk_buff *skb; u8 *data, *new_data; struct fe_rx_dma *rxd, trxd; - int done = 0; + int done = 0, pad; bool rx_vlan = netdev->features & NETIF_F_HW_VLAN_CTAG_RX; if (netdev->features & NETIF_F_RXCSUM) @@ -760,6 +763,10 @@ else checksum_bit = 0; + if (priv->flags & FE_FLAG_RX_2B_OFFSET) + pad = 0; + else + pad = NET_IP_ALIGN; while (done < budget) { unsigned int pktlen; dma_addr_t dma_addr; @@ -778,7 +785,7 @@ goto release_desc; } dma_addr = dma_map_single(&netdev->dev, - new_data + FE_RX_OFFSET, + new_data + NET_SKB_PAD + pad, priv->rx_buf_size, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) { @@ -792,7 +799,7 @@ put_page(virt_to_head_page(new_data)); goto release_desc; } - skb_reserve(skb, FE_RX_OFFSET); + skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); dma_unmap_single(&netdev->dev, trxd.rxd1, priv->rx_buf_size, DMA_FROM_DEVICE); @@ -1115,6 +1122,8 @@ napi_enable(&priv->rx_napi); val = FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN; + if (priv->flags & FE_FLAG_RX_2B_OFFSET) + val |= FE_RX_2B_OFFSET; val |= priv->soc->pdma_glo_cfg; fe_reg_w32(val, FE_REG_PDMA_GLO_CFG); Modified: trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h =================================================================== --- trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h 2015-01-18 20:17:07 UTC (rev 44044) +++ trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h 2015-01-18 20:17:18 UTC (rev 44045) @@ -289,6 +289,7 @@ #define FE_PST_DTX_IDX1 BIT(1) #define FE_PST_DTX_IDX0 BIT(0) +#define FE_RX_2B_OFFSET BIT(31) #define FE_TX_WB_DDONE BIT(6) #define FE_RX_DMA_BUSY BIT(3) #define FE_TX_DMA_BUSY BIT(1) @@ -401,6 +402,9 @@ #define FE_FLAG_PADDING_64B BIT(0) #define FE_FLAG_PADDING_BUG BIT(1) #define FE_FLAG_JUMBO_FRAME BIT(2) +#define FE_FLAG_RX_2B_OFFSET BIT(3) +#define FE_FLAG_RX_SG_DMA BIT(4) +#define FE_FLAG_RX_VLAN_CTAG BIT(5) #define FE_STAT_REG_DECLARE \ _FE(tx_bytes) \ Modified: trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/soc_mt7620.c =================================================================== --- trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/soc_mt7620.c 2015-01-18 20:17:07 UTC (rev 44044) +++ trunk/target/linux/ramips/files/drivers/net/ethernet/ralink/soc_mt7620.c 2015-01-18 20:17:18 UTC (rev 44045) @@ -28,7 +28,6 @@ #define MT7620A_CDMA_CSG_CFG 0x400 #define MT7620_DMA_VID (MT7620A_CDMA_CSG_CFG | 0x30) #define MT7621_DMA_VID 0xa8 -#define MT7620A_DMA_2B_OFFSET BIT(31) #define MT7620A_RESET_FE BIT(21) #define MT7621_RESET_FE BIT(6) #define MT7620A_RESET_ESW BIT(23) @@ -179,7 +178,7 @@ { struct fe_priv *priv = netdev_priv(netdev); - priv->flags = FE_FLAG_PADDING_64B; + priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_RX_2B_OFFSET; netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX; @@ -193,7 +192,7 @@ { struct fe_priv *priv = netdev_priv(netdev); - priv->flags = FE_FLAG_PADDING_64B; + priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_RX_2B_OFFSET; netdev->hw_features = NETIF_F_HW_VLAN_CTAG_TX; } @@ -220,7 +219,7 @@ .switch_config = mt7620_gsw_config, .port_init = mt7620_port_init, .reg_table = mt7620_reg_table, - .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS | MT7620A_DMA_2B_OFFSET, + .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS, .rx_int = RT5350_RX_DONE_INT, .tx_int = RT5350_TX_DONE_INT, .checksum_bit = MT7620_L4_VALID, @@ -242,7 +241,7 @@ .switch_init = mt7620_gsw_probe, .switch_config = mt7621_gsw_config, .reg_table = mt7621_reg_table, - .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS | MT7620A_DMA_2B_OFFSET, + .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS, .rx_int = RT5350_RX_DONE_INT, .tx_int = RT5350_TX_DONE_INT, .checksum_bit = MT7621_L4_VALID, _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
