diff options
| author | John Crispin <john@openwrt.org> | 2014-10-29 19:43:59 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2014-10-29 19:43:59 +0000 |
| commit | 152d692a1fb4631ca1baa6950b49499c3374e3b6 (patch) | |
| tree | 0db027981911fb0e1a326e8b6bb85de84812ffec /target/linux/ramips/patches-3.14 | |
| parent | 62107ff367b44aa80126a81a86458f4adb3df015 (diff) | |
| download | mtk-20170518-152d692a1fb4631ca1baa6950b49499c3374e3b6.zip mtk-20170518-152d692a1fb4631ca1baa6950b49499c3374e3b6.tar.gz mtk-20170518-152d692a1fb4631ca1baa6950b49499c3374e3b6.tar.bz2 | |
ramips: improve ralink ethernet driver
Change list:
* add tx scatter gather function.
* add software rx vlan offload to let GRO work.
* add jumbo frame support. because use build_skb so max MTU is 3812.
* enable hardware tx vlan.
* enable GRO and remove LRO. because it can improve performance and can work on forwarding.
* enable/fix tx padding function.
* let napi handle tx clean up.
* support ethtool operation. now support message level, hardware status and coalesce.
* ethtool support use mdio to get phy status only on mt7620. need modify dts file and add phy info to support it.
Notes:
* build and test on rt2880, rt3052, rt3352, rt3662, rt5350 and mt7620a.
* TCP NAT performance improve. test with netperf.
- rt2880(gigabit) from 5x to 12x Mbps.
- rt3x5x from 6x to 94 Mbps.
- rt5250 from 5x to 8x Mbps.
- rt3662(gigabit) from 6x to 42x Mbps with GRO. 23x Mbps without GRO. 66x Mbps with jumbo frame.
- mt7620 still 94Mbps.
* TSO function not tested. because i don't have mt7620 with eco >= 5. and the hardware don't support to set MSS. it will have problem.
Signed-off-by: michael lee <igvtee@gmail.com>
SVN-Revision: 43108
Diffstat (limited to 'target/linux/ramips/patches-3.14')
| -rw-r--r-- | target/linux/ramips/patches-3.14/0035-NET-MIPS-add-ralink-SoC-ethernet-driver.patch | 1892 |
1 files changed, 1434 insertions, 458 deletions
diff --git a/target/linux/ramips/patches-3.14/0035-NET-MIPS-add-ralink-SoC-ethernet-driver.patch b/target/linux/ramips/patches-3.14/0035-NET-MIPS-add-ralink-SoC-ethernet-driver.patch index c4829af..6e6f758 100644 --- a/target/linux/ramips/patches-3.14/0035-NET-MIPS-add-ralink-SoC-ethernet-driver.patch +++ b/target/linux/ramips/patches-3.14/0035-NET-MIPS-add-ralink-SoC-ethernet-driver.patch @@ -53,7 +53,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org> Index: linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h 2014-10-28 10:43:11.882131200 +0100 ++++ linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h 2014-10-29 20:25:55.429357372 +0100 @@ -0,0 +1,27 @@ +/* + * Ralink RT305x SoC platform device registration @@ -84,8 +84,8 @@ Index: linux-3.14.18/arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h +#endif /* _RT305X_ESW_PLATFORM_H */ Index: linux-3.14.18/arch/mips/ralink/rt305x.c =================================================================== ---- linux-3.14.18.orig/arch/mips/ralink/rt305x.c 2014-10-28 10:43:11.766130990 +0100 -+++ linux-3.14.18/arch/mips/ralink/rt305x.c 2014-10-28 10:43:11.882131200 +0100 +--- linux-3.14.18.orig/arch/mips/ralink/rt305x.c 2014-10-29 20:25:55.377355456 +0100 ++++ linux-3.14.18/arch/mips/ralink/rt305x.c 2014-10-29 20:25:55.433357519 +0100 @@ -199,6 +199,7 @@ } @@ -97,7 +97,7 @@ Index: linux-3.14.18/arch/mips/ralink/rt305x.c Index: linux-3.14.18/drivers/net/ethernet/Kconfig =================================================================== --- linux-3.14.18.orig/drivers/net/ethernet/Kconfig 2014-09-06 01:34:59.000000000 +0200 -+++ linux-3.14.18/drivers/net/ethernet/Kconfig 2014-10-29 14:59:06.927617708 +0100 ++++ linux-3.14.18/drivers/net/ethernet/Kconfig 2014-10-29 20:39:55.156284038 +0100 @@ -134,6 +134,7 @@ source "drivers/net/ethernet/packetengines/Kconfig" source "drivers/net/ethernet/pasemi/Kconfig" @@ -109,7 +109,7 @@ Index: linux-3.14.18/drivers/net/ethernet/Kconfig Index: linux-3.14.18/drivers/net/ethernet/Makefile =================================================================== --- linux-3.14.18.orig/drivers/net/ethernet/Makefile 2014-09-06 01:34:59.000000000 +0200 -+++ linux-3.14.18/drivers/net/ethernet/Makefile 2014-10-29 14:59:06.927617708 +0100 ++++ linux-3.14.18/drivers/net/ethernet/Makefile 2014-10-29 20:39:55.156284038 +0100 @@ -56,6 +56,7 @@ obj-$(CONFIG_NET_PACKET_ENGINE) += packetengines/ obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/ @@ -121,8 +121,8 @@ Index: linux-3.14.18/drivers/net/ethernet/Makefile Index: linux-3.14.18/drivers/net/ethernet/ralink/Kconfig =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/Kconfig 2014-10-28 10:43:11.886131208 +0100 -@@ -0,0 +1,32 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/Kconfig 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,31 @@ +config NET_RALINK + tristate "Ralink RT288X/RT3X5X/RT3662/RT3883/MT7620 ethernet driver" + depends on RALINK @@ -150,7 +150,6 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/Kconfig +config NET_RALINK_GSW_MT7620 + def_bool NET_RALINK + depends on SOC_MT7620 -+ select INET_LRO + select NET_RALINK_MDIO + select PHYLIB + select SWCONFIG @@ -158,13 +157,13 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/Kconfig Index: linux-3.14.18/drivers/net/ethernet/ralink/Makefile =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/Makefile 2014-10-28 10:43:11.886131208 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/Makefile 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,18 @@ +# +# Makefile for the Ralink SoCs built-in ethernet macs +# + -+ralink-eth-y += ralink_soc_eth.o ++ralink-eth-y += ralink_soc_eth.o ralink_ethtool.o + +ralink-eth-$(CONFIG_NET_RALINK_MDIO) += mdio.o +ralink-eth-$(CONFIG_NET_RALINK_MDIO_RT2880) += mdio_rt2880.o @@ -181,7 +180,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/Makefile Index: linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.c 2014-10-28 10:43:11.886131208 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.c 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,1463 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -1649,7 +1648,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.c Index: linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.h 2014-10-28 10:43:11.886131208 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.h 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,32 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -1686,8 +1685,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/esw_rt3052.h Index: linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.c 2014-10-29 14:58:32.303564882 +0100 -@@ -0,0 +1,568 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.c 2014-10-29 20:33:38.670422146 +0100 +@@ -0,0 +1,569 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -2152,6 +2151,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.c + _mt7620_mii_write(gsw, 1, 4, 0x05e1); + _mt7620_mii_write(gsw, 2, 4, 0x05e1); + _mt7620_mii_write(gsw, 3, 4, 0x05e1); ++ + _mt7620_mii_write(gsw, 1, 31, 0xa000); //local, page 2 + _mt7620_mii_write(gsw, 0, 16, 0x1111); + _mt7620_mii_write(gsw, 1, 16, 0x1010); @@ -2259,7 +2259,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.c Index: linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.h 2014-10-28 10:43:11.890131215 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.h 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,30 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -2294,8 +2294,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/gsw_mt7620a.h Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mdio.c 2014-10-28 10:43:11.890131215 +0100 -@@ -0,0 +1,244 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/mdio.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,275 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -2416,8 +2416,38 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.c + return 0; +} + ++static void phy_init(struct fe_priv *priv, struct phy_device *phy) ++{ ++ phy_attach(priv->netdev, dev_name(&phy->dev), PHY_INTERFACE_MODE_MII); ++ ++ phy->autoneg = AUTONEG_ENABLE; ++ phy->speed = 0; ++ phy->duplex = 0; ++ phy->supported &= PHY_BASIC_FEATURES; ++ phy->advertising = phy->supported | ADVERTISED_Autoneg; ++ ++ phy_start_aneg(phy); ++} ++ +static int fe_phy_connect(struct fe_priv *priv) +{ ++ int i; ++ ++ for (i = 0; i < 8; i++) { ++ if (priv->phy->phy_node[i]) { ++ if (!priv->phy_dev) { ++ priv->phy_dev = priv->phy->phy[i]; ++ priv->phy_flags = FE_PHY_FLAG_PORT; ++ } ++ } else if (priv->mii_bus && priv->mii_bus->phy_map[i]) { ++ phy_init(priv, priv->mii_bus->phy_map[i]); ++ if (!priv->phy_dev) { ++ priv->phy_dev = priv->mii_bus->phy_map[i]; ++ priv->phy_flags = FE_PHY_FLAG_ATTACH; ++ } ++ } ++ } ++ + return 0; +} + @@ -2435,6 +2465,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.c + spin_unlock_irqrestore(&priv->phy->lock, flags); + } else if (priv->phy->phy[i]) { + phy_disconnect(priv->phy->phy[i]); ++ } else if (priv->mii_bus && priv->mii_bus->phy_map[i]) { ++ phy_detach(priv->mii_bus->phy_map[i]); + } +} + @@ -2512,7 +2544,6 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.c + priv->mii_bus->read = priv->soc->mdio_read; + priv->mii_bus->write = priv->soc->mdio_write; + priv->mii_bus->reset = fe_mdio_reset; -+ priv->mii_bus->irq = priv->mii_irq; + priv->mii_bus->priv = priv; + priv->mii_bus->parent = priv->device; + @@ -2543,7 +2574,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.c Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mdio.h 2014-10-28 10:43:11.890131215 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/mdio.h 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,29 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -2577,7 +2608,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio.h Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.c 2014-10-28 10:43:11.890131215 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.c 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,232 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -2814,7 +2845,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.c Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.h 2014-10-28 10:43:11.890131215 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.h 2014-10-29 20:25:55.433357519 +0100 @@ -0,0 +1,26 @@ +/* + * This program is free software; you can redistribute it and/or modify @@ -2845,7 +2876,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mdio_rt2880.h Index: linux-3.14.18/drivers/net/ethernet/ralink/mt7530.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mt7530.c 2014-10-29 14:58:52.303587070 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/mt7530.c 2014-10-29 20:32:49.124597652 +0100 @@ -0,0 +1,582 @@ +/* + * This program is free software; you can redistribute it and/or @@ -3432,7 +3463,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mt7530.c Index: linux-3.14.18/drivers/net/ethernet/ralink/mt7530.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/mt7530.h 2014-10-28 12:34:25.187728544 +0100 ++++ linux-3.14.18/drivers/net/ethernet/ralink/mt7530.h 2014-10-29 20:30:49.296185172 +0100 @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or @@ -3457,8 +3488,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/mt7530.h Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c 2014-10-28 10:43:11.890131215 +0100 -@@ -0,0 +1,844 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,1331 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -3491,16 +3522,40 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c +#include <linux/of_mdio.h> +#include <linux/if_vlan.h> +#include <linux/reset.h> ++#include <linux/tcp.h> ++#include <linux/io.h> + +#include <asm/mach-ralink/ralink_regs.h> + +#include "ralink_soc_eth.h" +#include "esw_rt3052.h" +#include "mdio.h" ++#include "ralink_ethtool.h" + +#define TX_TIMEOUT (2 * HZ) +#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 DMA_DUMMY_DESC 0xffffffff ++#define FE_DEFAULT_MSG_ENABLE \ ++ (NETIF_MSG_DRV | \ ++ NETIF_MSG_PROBE | \ ++ NETIF_MSG_LINK | \ ++ NETIF_MSG_TIMER | \ ++ NETIF_MSG_IFDOWN | \ ++ NETIF_MSG_IFUP | \ ++ NETIF_MSG_RX_ERR | \ ++ NETIF_MSG_TX_ERR) ++ ++#define TX_DMA_DESP2_DEF (TX_DMA_LS0 | TX_DMA_DONE) ++#define TX_DMA_DESP4_DEF (TX_DMA_QN(3) | TX_DMA_PN(1)) ++#define NEXT_TX_DESP_IDX(X) (((X) + 1) & (NUM_DMA_DESC - 1)) ++#define NEXT_RX_DESP_IDX(X) (((X) + 1) & (NUM_DMA_DESC - 1)) ++ ++static int fe_msg_level = -1; ++module_param_named(msg_level, fe_msg_level, int, 0); ++MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)"); + +static const u32 fe_reg_table_default[FE_REG_COUNT] = { + [FE_REG_PDMA_GLO_CFG] = FE_PDMA_GLO_CFG, @@ -3514,6 +3569,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + [FE_REG_RX_CALC_IDX0] = FE_RX_CALC_IDX0, + [FE_REG_FE_INT_ENABLE] = FE_FE_INT_ENABLE, + [FE_REG_FE_INT_STATUS] = FE_FE_INT_STATUS, ++ [FE_REG_FE_DMA_VID_BASE] = FE_DMA_VID0, ++ [FE_REG_FE_COUNTER_BASE] = FE_GDMA1_TX_GBCNT, +}; + +static const u32 *fe_reg_table = fe_reg_table_default; @@ -3530,12 +3587,12 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + return __raw_readl(fe_base + reg); +} + -+static inline void fe_reg_w32(u32 val, enum fe_reg reg) ++void fe_reg_w32(u32 val, enum fe_reg reg) +{ + fe_w32(val, fe_reg_table[reg]); +} + -+static inline u32 fe_reg_r32(enum fe_reg reg) ++u32 fe_reg_r32(enum fe_reg reg) +{ + return fe_r32(fe_reg_table[reg]); +} @@ -3583,46 +3640,80 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + return ret; +} + -+static struct sk_buff* fe_alloc_skb(struct fe_priv *priv) ++static inline int fe_max_frag_size(int mtu) +{ -+ struct sk_buff *skb; ++ return SKB_DATA_ALIGN(FE_RX_HLEN + mtu) + ++ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); ++} + -+ skb = netdev_alloc_skb(priv->netdev, MAX_RX_LENGTH + NET_IP_ALIGN); -+ if (!skb) -+ return NULL; ++static inline int fe_max_buf_size(int frag_size) ++{ ++ return frag_size - FE_RX_HLEN - ++ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); ++} + -+ skb_reserve(skb, NET_IP_ALIGN); ++static void fe_clean_rx(struct fe_priv *priv) ++{ ++ int i; + -+ return skb; ++ if (priv->rx_data) { ++ for (i = 0; i < NUM_DMA_DESC; i++) ++ if (priv->rx_data[i]) { ++ if (priv->rx_dma && priv->rx_dma[i].rxd1) ++ dma_unmap_single(&priv->netdev->dev, ++ priv->rx_dma[i].rxd1, ++ priv->rx_buf_size, ++ DMA_FROM_DEVICE); ++ put_page(virt_to_head_page(priv->rx_data[i])); ++ } ++ ++ kfree(priv->rx_data); ++ priv->rx_data = NULL; ++ } ++ ++ if (priv->rx_dma) { ++ dma_free_coherent(&priv->netdev->dev, ++ NUM_DMA_DESC * sizeof(*priv->rx_dma), ++ priv->rx_dma, ++ priv->rx_phys); ++ priv->rx_dma = NULL; ++ } +} + +static int fe_alloc_rx(struct fe_priv *priv) +{ -+ int size = NUM_DMA_DESC * sizeof(struct fe_rx_dma); ++ struct net_device *netdev = priv->netdev; + int i; + -+ priv->rx_dma = dma_alloc_coherent(&priv->netdev->dev, size, -+ &priv->rx_phys, GFP_ATOMIC); -+ if (!priv->rx_dma) -+ return -ENOMEM; -+ -+ memset(priv->rx_dma, 0, size); ++ priv->rx_data = kcalloc(NUM_DMA_DESC, sizeof(*priv->rx_data), ++ GFP_KERNEL); ++ if (!priv->rx_data) ++ goto no_rx_mem; + + for (i = 0; i < NUM_DMA_DESC; i++) { -+ priv->rx_skb[i] = fe_alloc_skb(priv); -+ if (!priv->rx_skb[i]) -+ return -ENOMEM; ++ priv->rx_data[i] = netdev_alloc_frag(priv->frag_size); ++ if (!priv->rx_data[i]) ++ goto no_rx_mem; + } + ++ priv->rx_dma = dma_alloc_coherent(&netdev->dev, ++ NUM_DMA_DESC * sizeof(*priv->rx_dma), ++ &priv->rx_phys, ++ GFP_ATOMIC | __GFP_ZERO); ++ if (!priv->rx_dma) ++ goto no_rx_mem; ++ + for (i = 0; i < NUM_DMA_DESC; i++) { -+ dma_addr_t dma_addr = dma_map_single(&priv->netdev->dev, -+ priv->rx_skb[i]->data, -+ MAX_RX_LENGTH, -+ DMA_FROM_DEVICE); ++ dma_addr_t dma_addr = dma_map_single(&netdev->dev, ++ priv->rx_data[i] + FE_RX_OFFSET, ++ priv->rx_buf_size, ++ DMA_FROM_DEVICE); ++ if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) ++ goto no_rx_mem; + priv->rx_dma[i].rxd1 = (unsigned int) dma_addr; + + if (priv->soc->rx_dma) -+ priv->soc->rx_dma(priv, i, MAX_RX_LENGTH); ++ priv->soc->rx_dma(priv, i, priv->rx_buf_size); + else + priv->rx_dma[i].rxd2 = RX_DMA_LSO; + } @@ -3634,31 +3725,59 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + fe_reg_w32(FE_PST_DRX_IDX0, FE_REG_PDMA_RST_CFG); + + return 0; ++ ++no_rx_mem: ++ return -ENOMEM; ++} ++ ++static void fe_clean_tx(struct fe_priv *priv) ++{ ++ int i; ++ ++ if (priv->tx_skb) { ++ for (i = 0; i < NUM_DMA_DESC; i++) { ++ if (priv->tx_skb[i]) ++ dev_kfree_skb_any(priv->tx_skb[i]); ++ } ++ kfree(priv->tx_skb); ++ priv->tx_skb = NULL; ++ } ++ ++ if (priv->tx_dma) { ++ dma_free_coherent(&priv->netdev->dev, ++ NUM_DMA_DESC * sizeof(*priv->tx_dma), ++ priv->tx_dma, ++ priv->tx_phys); ++ priv->tx_dma = NULL; ++ } +} + +static int fe_alloc_tx(struct fe_priv *priv) +{ -+ int size = NUM_DMA_DESC * sizeof(struct fe_tx_dma); + int i; + + priv->tx_free_idx = 0; + -+ priv->tx_dma = dma_alloc_coherent(&priv->netdev->dev, size, -+ &priv->tx_phys, GFP_ATOMIC); -+ if (!priv->tx_dma) -+ return -ENOMEM; ++ priv->tx_skb = kcalloc(NUM_DMA_DESC, sizeof(*priv->tx_skb), ++ GFP_KERNEL); ++ if (!priv->tx_skb) ++ goto no_tx_mem; + -+ memset(priv->tx_dma, 0, size); ++ priv->tx_dma = dma_alloc_coherent(&priv->netdev->dev, ++ NUM_DMA_DESC * sizeof(*priv->tx_dma), ++ &priv->tx_phys, ++ GFP_ATOMIC | __GFP_ZERO); ++ if (!priv->tx_dma) ++ goto no_tx_mem; + + for (i = 0; i < NUM_DMA_DESC; i++) { + if (priv->soc->tx_dma) { + priv->soc->tx_dma(priv, i, NULL); + continue; + } -+ -+ priv->tx_dma[i].txd2 = TX_DMA_LSO | TX_DMA_DONE; -+ priv->tx_dma[i].txd4 = TX_DMA_QN(3) | TX_DMA_PN(1); ++ priv->tx_dma[i].txd2 = TX_DMA_DESP2_DEF; + } ++ wmb(); + + fe_reg_w32(priv->tx_phys, FE_REG_TX_BASE_PTR0); + fe_reg_w32(NUM_DMA_DESC, FE_REG_TX_MAX_CNT0); @@ -3666,330 +3785,644 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + fe_reg_w32(FE_PST_DTX_IDX0, FE_REG_PDMA_RST_CFG); + + return 0; ++ ++no_tx_mem: ++ return -ENOMEM; ++} ++ ++static int fe_init_dma(struct fe_priv *priv) ++{ ++ int err; ++ ++ err = fe_alloc_tx(priv); ++ if (err) ++ return err; ++ ++ err = fe_alloc_rx(priv); ++ if (err) ++ return err; ++ ++ return 0; +} + +static void fe_free_dma(struct fe_priv *priv) +{ -+ int i; ++ fe_clean_tx(priv); ++ fe_clean_rx(priv); + -+ for (i = 0; i < NUM_DMA_DESC; i++) { -+ if (priv->rx_skb[i]) { -+ dma_unmap_single(&priv->netdev->dev, priv->rx_dma[i].rxd1, -+ MAX_RX_LENGTH, DMA_FROM_DEVICE); -+ dev_kfree_skb_any(priv->rx_skb[i]); -+ priv->rx_skb[i] = NULL; -+ } ++ netdev_reset_queue(priv->netdev); ++} + -+ if (priv->tx_skb[i]) { -+ dev_kfree_skb_any(priv->tx_skb[i]); -+ priv->tx_skb[i] = NULL; -+ } -+ } ++static inline void txd_unmap_single(struct device *dev, struct fe_tx_dma *txd) ++{ ++ if (txd->txd1 && TX_DMA_GET_PLEN0(txd->txd2)) ++ dma_unmap_single(dev, txd->txd1, ++ TX_DMA_GET_PLEN0(txd->txd2), ++ DMA_TO_DEVICE); ++} + -+ if (priv->rx_dma) { -+ int size = NUM_DMA_DESC * sizeof(struct fe_rx_dma); -+ dma_free_coherent(&priv->netdev->dev, size, priv->rx_dma, -+ priv->rx_phys); ++static inline void txd_unmap_page0(struct device *dev, struct fe_tx_dma *txd) ++{ ++ if (txd->txd1 && TX_DMA_GET_PLEN0(txd->txd2)) ++ dma_unmap_page(dev, txd->txd1, ++ TX_DMA_GET_PLEN0(txd->txd2), ++ DMA_TO_DEVICE); ++} ++ ++static inline void txd_unmap_page1(struct device *dev, struct fe_tx_dma *txd) ++{ ++ if (txd->txd3 && TX_DMA_GET_PLEN1(txd->txd2)) ++ dma_unmap_page(dev, txd->txd3, ++ TX_DMA_GET_PLEN1(txd->txd2), ++ DMA_TO_DEVICE); ++} ++ ++void fe_stats_update(struct fe_priv *priv) ++{ ++ struct fe_hw_stats *hwstats = priv->hw_stats; ++ unsigned int base = fe_reg_table[FE_REG_FE_COUNTER_BASE]; ++ ++ u64_stats_update_begin(&hwstats->syncp); ++ ++ hwstats->tx_bytes += fe_r32(base); ++ hwstats->tx_packets += fe_r32(base + 0x04); ++ hwstats->tx_skip += fe_r32(base + 0x08); ++ hwstats->tx_collisions += fe_r32(base + 0x0c); ++ hwstats->rx_bytes += fe_r32(base + 0x20); ++ hwstats->rx_packets += fe_r32(base + 0x24); ++ hwstats->rx_overflow += fe_r32(base + 0x28); ++ hwstats->rx_fcs_errors += fe_r32(base + 0x2c); ++ hwstats->rx_short_errors += fe_r32(base + 0x30); ++ hwstats->rx_long_errors += fe_r32(base + 0x34); ++ hwstats->rx_checksum_errors += fe_r32(base + 0x38); ++ hwstats->rx_flow_control_packets += fe_r32(base + 0x3c); ++ ++ u64_stats_update_end(&hwstats->syncp); ++} ++ ++static struct rtnl_link_stats64 *fe_get_stats64(struct net_device *dev, ++ struct rtnl_link_stats64 *storage) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ struct fe_hw_stats *hwstats = priv->hw_stats; ++ unsigned int base = fe_reg_table[FE_REG_FE_COUNTER_BASE]; ++ unsigned int start; ++ ++ if (!base) { ++ netdev_stats_to_stats64(storage, &dev->stats); ++ return storage; + } + -+ if (priv->tx_dma) { -+ int size = NUM_DMA_DESC * sizeof(struct fe_tx_dma); -+ dma_free_coherent(&priv->netdev->dev, size, priv->tx_dma, -+ priv->tx_phys); ++ if (netif_running(dev) && netif_device_present(dev)) { ++ if (spin_trylock(&hwstats->stats_lock)) { ++ fe_stats_update(priv); ++ spin_unlock(&hwstats->stats_lock); ++ } + } + -+ netdev_reset_queue(priv->netdev); ++ do { ++ start = u64_stats_fetch_begin_bh(&hwstats->syncp); ++ storage->rx_packets = hwstats->rx_packets; ++ storage->tx_packets = hwstats->tx_packets; ++ storage->rx_bytes = hwstats->rx_bytes; ++ storage->tx_bytes = hwstats->tx_bytes; ++ storage->collisions = hwstats->tx_collisions; ++ storage->rx_length_errors = hwstats->rx_short_errors + ++ hwstats->rx_long_errors; ++ storage->rx_over_errors = hwstats->rx_overflow; ++ storage->rx_crc_errors = hwstats->rx_fcs_errors; ++ storage->rx_errors = hwstats->rx_checksum_errors; ++ storage->tx_aborted_errors = hwstats->tx_skip; ++ } while (u64_stats_fetch_retry_bh(&hwstats->syncp, start)); ++ ++ storage->tx_errors = priv->netdev->stats.tx_errors; ++ storage->rx_dropped = priv->netdev->stats.rx_dropped; ++ storage->tx_dropped = priv->netdev->stats.tx_dropped; ++ ++ return storage; +} + -+static void fe_start_tso(struct sk_buff *skb, struct net_device *dev, unsigned int nr_frags, int idx) ++static int fe_tx_map_dma(struct sk_buff *skb, struct net_device *dev, ++ int idx) +{ -+ struct fe_priv *priv = netdev_priv(dev); ++ struct fe_priv *priv = netdev_priv(dev); + struct skb_frag_struct *frag; -+ int i; ++ struct fe_tx_dma *txd; ++ dma_addr_t mapped_addr; ++ unsigned int nr_frags; ++ u32 def_txd4, txd2; ++ int i, j, unmap_idx, tx_num; ++ ++ txd = &priv->tx_dma[idx]; ++ nr_frags = skb_shinfo(skb)->nr_frags; ++ tx_num = 1 + (nr_frags >> 1); ++ ++ /* init tx descriptor */ ++ if (priv->soc->tx_dma) ++ priv->soc->tx_dma(priv, idx, skb); ++ else ++ txd->txd4 = TX_DMA_DESP4_DEF; ++ def_txd4 = txd->txd4; ++ ++ /* use dma_unmap_single to free it */ ++ txd->txd4 |= priv->soc->tx_udf_bit; ++ ++ /* TX Checksum offload */ ++ if (skb->ip_summed == CHECKSUM_PARTIAL) ++ txd->txd4 |= TX_DMA_CHKSUM; ++ ++ /* VLAN header offload */ ++ if (vlan_tx_tag_present(skb)) { ++ txd->txd4 |= TX_DMA_INS_VLAN | ++ ((vlan_tx_tag_get(skb) >> VLAN_PRIO_SHIFT) << 4) | ++ (vlan_tx_tag_get(skb) & 0xF); ++ } ++ ++ /* TSO: fill MSS info in tcp checksum field */ ++ if (skb_is_gso(skb)) { ++ if (skb_cow_head(skb, 0)) { ++ netif_warn(priv, tx_err, dev, ++ "GSO expand head fail.\n"); ++ goto err_out; ++ } ++ if (skb_shinfo(skb)->gso_type & ++ (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { ++ txd->txd4 |= TX_DMA_TSO; ++ tcp_hdr(skb)->check = htons(skb_shinfo(skb)->gso_size); ++ } ++ } ++ ++ mapped_addr = dma_map_single(&dev->dev, skb->data, ++ skb_headlen(skb), DMA_TO_DEVICE); ++ if (unlikely(dma_mapping_error(&dev->dev, mapped_addr))) ++ goto err_out; ++ txd->txd1 = mapped_addr; ++ txd2 = TX_DMA_PLEN0(skb_headlen(skb)); + ++ /* TX SG offload */ ++ j = idx; + for (i = 0; i < nr_frags; i++) { -+ dma_addr_t mapped_addr; + + frag = &skb_shinfo(skb)->frags[i]; -+ mapped_addr = skb_frag_dma_map(&dev->dev, frag, 0, skb_frag_size(frag), DMA_TO_DEVICE); -+ if (i % 2) { -+ idx = (idx + 1) % NUM_DMA_DESC; -+ priv->tx_dma[idx].txd1 = mapped_addr; -+ if (i == nr_frags - 1) -+ priv->tx_dma[idx].txd2 = TX_DMA_LSO | TX_DMA_PLEN0(frag->size); -+ else -+ priv->tx_dma[idx].txd2 = TX_DMA_PLEN0(frag->size); ++ mapped_addr = skb_frag_dma_map(&dev->dev, frag, 0, ++ skb_frag_size(frag), DMA_TO_DEVICE); ++ if (unlikely(dma_mapping_error(&dev->dev, mapped_addr))) ++ goto err_dma; ++ ++ if (i & 0x1) { ++ j = NEXT_TX_DESP_IDX(j); ++ txd = &priv->tx_dma[j]; ++ txd->txd1 = mapped_addr; ++ txd2 = TX_DMA_PLEN0(frag->size); ++ txd->txd4 = def_txd4; + } else { -+ priv->tx_dma[idx].txd3 = mapped_addr; -+ if (i == nr_frags - 1) -+ priv->tx_dma[idx].txd2 |= TX_DMA_LS1 | TX_DMA_PLEN1(frag->size); -+ else -+ priv->tx_dma[idx].txd2 |= TX_DMA_PLEN1(frag->size); ++ txd->txd3 = mapped_addr; ++ txd2 |= TX_DMA_PLEN1(frag->size); ++ if (i != (nr_frags -1)) ++ txd->txd2 = txd2; ++ priv->tx_skb[j] = (struct sk_buff *) DMA_DUMMY_DESC; + } + } ++ ++ /* set last segment */ ++ if (nr_frags & 0x1) ++ txd->txd2 = (txd2 | TX_DMA_LS1); ++ else ++ txd->txd2 = (txd2 | TX_DMA_LS0); ++ ++ /* store skb to cleanup */ ++ priv->tx_skb[j] = skb; ++ ++ wmb(); ++ j = NEXT_TX_DESP_IDX(j); ++ fe_reg_w32(j, FE_REG_TX_CTX_IDX0); ++ ++ return 0; ++ ++err_dma: ++ /* unmap dma */ ++ txd = &priv->tx_dma[idx]; ++ txd_unmap_single(&dev->dev, txd); ++ ++ j = idx; ++ unmap_idx = i; ++ for (i = 0; i < unmap_idx; i++) { ++ if (i & 0x1) { ++ j = NEXT_TX_DESP_IDX(j); ++ txd = &priv->tx_dma[j]; ++ txd_unmap_page0(&dev->dev, txd); ++ } else { ++ txd_unmap_page1(&dev->dev, txd); ++ } ++ } ++ ++err_out: ++ /* reinit descriptors and skb */ ++ j = idx; ++ for (i = 0; i < tx_num; i++) { ++ priv->tx_dma[j].txd2 = TX_DMA_DESP2_DEF; ++ priv->tx_skb[j] = NULL; ++ j = NEXT_TX_DESP_IDX(j); ++ } ++ wmb(); ++ ++ return -1; ++} ++ ++static inline int fe_skb_padto(struct sk_buff *skb, struct fe_priv *priv) { ++ unsigned int len; ++ int ret; ++ ++ ret = 0; ++ if (unlikely(skb->len < VLAN_ETH_ZLEN)) { ++ if ((priv->flags & FE_FLAG_PADDING_64B) && ++ !(priv->flags & FE_FLAG_PADDING_BUG)) ++ return ret; ++ ++ if (vlan_tx_tag_present(skb)) ++ len = ETH_ZLEN; ++ else if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) ++ len = VLAN_ETH_ZLEN; ++ else if(!(priv->flags & FE_FLAG_PADDING_64B)) ++ len = ETH_ZLEN; ++ else ++ return ret; ++ ++ if (skb->len < len) { ++ if ((ret = skb_pad(skb, len - skb->len)) < 0) ++ return ret; ++ skb->len = len; ++ skb_set_tail_pointer(skb, len); ++ } ++ } ++ ++ return ret; ++} ++ ++static inline u32 fe_empty_txd(struct fe_priv *priv, u32 tx_fill_idx) ++{ ++ return (u32)(NUM_DMA_DESC - ((tx_fill_idx - priv->tx_free_idx) & ++ (NUM_DMA_DESC - 1))); +} + +static int fe_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ -+ unsigned int nr_frags = skb_shinfo(skb)->nr_frags; + struct fe_priv *priv = netdev_priv(dev); -+ dma_addr_t mapped_addr; -+ u32 tx_next, tx, tx_num = 1; -+ int i; ++ struct net_device_stats *stats = &dev->stats; ++ u32 tx; ++ int tx_num; + -+ if (priv->soc->min_pkt_len) { -+ if (skb->len < priv->soc->min_pkt_len) { -+ if (skb_padto(skb, priv->soc->min_pkt_len)) { -+ printk(KERN_ERR -+ "fe_eth: skb_padto failed\n"); -+ kfree_skb(skb); -+ return 0; -+ } -+ skb_put(skb, priv->soc->min_pkt_len - skb->len); -+ } ++ if (fe_skb_padto(skb, priv)) { ++ netif_warn(priv, tx_err, dev, "tx padding failed!\n"); ++ return NETDEV_TX_OK; + } + -+ dev->trans_start = jiffies; -+ mapped_addr = dma_map_single(&priv->netdev->dev, skb->data, -+ skb->len, DMA_TO_DEVICE); -+ + spin_lock(&priv->page_lock); -+ ++ tx_num = 1 + (skb_shinfo(skb)->nr_frags >> 1); + tx = fe_reg_r32(FE_REG_TX_CTX_IDX0); -+ if (priv->soc->tso && nr_frags) -+ tx_num += nr_frags >> 1; -+ tx_next = (tx + tx_num) % NUM_DMA_DESC; -+ if ((priv->tx_skb[tx]) || (priv->tx_skb[tx_next]) || -+ !(priv->tx_dma[tx].txd2 & TX_DMA_DONE) || -+ !(priv->tx_dma[tx_next].txd2 & TX_DMA_DONE)) ++ if (unlikely(fe_empty_txd(priv, tx) <= tx_num)) + { ++ netif_stop_queue(dev); + spin_unlock(&priv->page_lock); -+ dev->stats.tx_dropped++; ++ netif_err(priv, tx_queued,dev, ++ "Tx Ring full when queue awake!\n"); ++ return NETDEV_TX_BUSY; ++ } ++ ++ if (fe_tx_map_dma(skb, dev, tx) < 0) { + kfree_skb(skb); + -+ return NETDEV_TX_OK; ++ stats->tx_dropped++; ++ } else { ++ netdev_sent_queue(dev, skb->len); ++ skb_tx_timestamp(skb); ++ ++ stats->tx_packets++; ++ stats->tx_bytes += skb->len; + } + -+ if (priv->soc->tso) { -+ int t = tx_num; ++ spin_unlock(&priv->page_lock); + -+ priv->tx_skb[(tx + t - 1) % NUM_DMA_DESC] = skb; -+ while (--t) -+ priv->tx_skb[(tx + t - 1) % NUM_DMA_DESC] = (struct sk_buff *) DMA_DUMMY_DESC; -+ } else { -+ priv->tx_skb[tx] = skb; ++ return NETDEV_TX_OK; ++} ++ ++static inline void fe_rx_vlan(struct sk_buff *skb) ++{ ++ struct ethhdr *ehdr; ++ u16 vlanid; ++ ++ if (!__vlan_get_tag(skb, &vlanid)) { ++ /* pop the vlan tag */ ++ ehdr = (struct ethhdr *)skb->data; ++ memmove(skb->data + VLAN_HLEN, ehdr, ETH_ALEN * 2); ++ skb_pull(skb, VLAN_HLEN); ++ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlanid); + } -+ priv->tx_dma[tx].txd1 = (unsigned int) mapped_addr; -+ wmb(); ++} + -+ priv->tx_dma[tx].txd4 &= ~0x80; -+ if (priv->soc->tx_dma) -+ priv->soc->tx_dma(priv, tx, skb); -+ else -+ priv->tx_dma[tx].txd2 = TX_DMA_LSO | TX_DMA_PLEN0(skb->len); ++static int fe_poll_rx(struct napi_struct *napi, int budget, ++ struct fe_priv *priv) ++{ ++ struct net_device *netdev = priv->netdev; ++ struct net_device_stats *stats = &netdev->stats; ++ struct fe_soc_data *soc = priv->soc; ++ u32 checksum_bit; ++ int idx = fe_reg_r32(FE_REG_RX_CALC_IDX0); ++ struct sk_buff *skb; ++ u8 *data, *new_data; ++ struct fe_rx_dma *rxd; ++ int done = 0; ++ bool rx_vlan = netdev->features & NETIF_F_HW_VLAN_CTAG_RX; + -+ if (skb->ip_summed == CHECKSUM_PARTIAL) -+ priv->tx_dma[tx].txd4 |= TX_DMA_CHKSUM; ++ if (netdev->features & NETIF_F_RXCSUM) ++ checksum_bit = soc->checksum_bit; + else -+ priv->tx_dma[tx].txd4 &= ~TX_DMA_CHKSUM; -+ -+ if (priv->soc->tso) -+ fe_start_tso(skb, dev, nr_frags, tx); -+ -+ if (priv->soc->tso && (skb_shinfo(skb)->gso_segs > 1)) { -+ struct iphdr *iph = NULL; -+ struct tcphdr *th = NULL; -+ struct ipv6hdr *ip6h = NULL; -+ -+ ip6h = (struct ipv6hdr *) skb_network_header(skb); -+ iph = (struct iphdr *) skb_network_header(skb); -+ if ((iph->version == 4) && (iph->protocol == IPPROTO_TCP)) { -+ th = (struct tcphdr *)skb_transport_header(skb); -+ priv->tx_dma[tx].txd4 |= BIT(28); -+ th->check = htons(skb_shinfo(skb)->gso_size); -+ dma_cache_sync(NULL, th, sizeof(struct tcphdr), DMA_TO_DEVICE); -+ } else if ((ip6h->version == 6) && (ip6h->nexthdr == NEXTHDR_TCP)) { -+ th = (struct tcphdr *)skb_transport_header(skb); -+ priv->tx_dma[tx].txd4 |= BIT(28); -+ th->check = htons(skb_shinfo(skb)->gso_size); -+ dma_cache_sync(NULL, th, sizeof(struct tcphdr), DMA_TO_DEVICE); -+ } -+ } ++ checksum_bit = 0; + -+ for (i = 0; i < tx_num; i++) -+ dma_cache_sync(NULL, &priv->tx_dma[tx + i], sizeof(struct fe_tx_dma), DMA_TO_DEVICE); ++ while (done < budget) { ++ unsigned int pktlen; ++ dma_addr_t dma_addr; ++ idx = NEXT_RX_DESP_IDX(idx); ++ rxd = &priv->rx_dma[idx]; ++ data = priv->rx_data[idx]; + -+ dev->stats.tx_packets++; -+ dev->stats.tx_bytes += skb->len; ++ if (!(rxd->rxd2 & RX_DMA_DONE)) ++ break; + -+ wmb(); -+ fe_reg_w32(tx_next, FE_REG_TX_CTX_IDX0); -+ netdev_sent_queue(dev, skb->len); ++ /* alloc new buffer */ ++ new_data = netdev_alloc_frag(priv->frag_size); ++ if (unlikely(!new_data)) { ++ stats->rx_dropped++; ++ goto release_desc; ++ } ++ dma_addr = dma_map_single(&netdev->dev, ++ new_data + FE_RX_OFFSET, ++ priv->rx_buf_size, ++ DMA_FROM_DEVICE); ++ if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) { ++ put_page(virt_to_head_page(new_data)); ++ goto release_desc; ++ } + -+ spin_unlock(&priv->page_lock); ++ /* receive data */ ++ skb = build_skb(data, priv->frag_size); ++ if (unlikely(!skb)) { ++ put_page(virt_to_head_page(new_data)); ++ goto release_desc; ++ } ++ skb_reserve(skb, FE_RX_OFFSET); ++ ++ dma_unmap_single(&netdev->dev, rxd->rxd1, ++ priv->rx_buf_size, DMA_FROM_DEVICE); ++ pktlen = RX_DMA_PLEN0(rxd->rxd2); ++ skb_put(skb, pktlen); ++ skb->dev = netdev; ++ if (rxd->rxd4 & checksum_bit) { ++ skb->ip_summed = CHECKSUM_UNNECESSARY; ++ } else { ++ skb_checksum_none_assert(skb); ++ } ++ if (rx_vlan) ++ fe_rx_vlan(skb); ++ skb->protocol = eth_type_trans(skb, netdev); + -+ return NETDEV_TX_OK; -+} ++ stats->rx_packets++; ++ stats->rx_bytes += pktlen; + -+static int fe_poll_rx(struct napi_struct *napi, int budget) -+{ -+ struct fe_priv *priv = container_of(napi, struct fe_priv, rx_napi); -+ int idx = fe_reg_r32(FE_REG_RX_CALC_IDX0); -+ int complete = 0; -+ int rx = 0; ++ napi_gro_receive(napi, skb); + -+ while ((rx < budget) && !complete) { -+ idx = (idx + 1) % NUM_DMA_DESC; ++ priv->rx_data[idx] = new_data; ++ rxd->rxd1 = (unsigned int) dma_addr; + -+ if (priv->rx_dma[idx].rxd2 & RX_DMA_DONE) { -+ struct sk_buff *new_skb = fe_alloc_skb(priv); ++release_desc: ++ if (soc->rx_dma) ++ soc->rx_dma(priv, idx, priv->rx_buf_size); ++ else ++ rxd->rxd2 = RX_DMA_LSO; + -+ if (new_skb) { -+ int pktlen = RX_DMA_PLEN0(priv->rx_dma[idx].rxd2); -+ dma_addr_t dma_addr; ++ wmb(); ++ fe_reg_w32(idx, FE_REG_RX_CALC_IDX0); ++ done++; ++ } + -+ dma_unmap_single(&priv->netdev->dev, priv->rx_dma[idx].rxd1, -+ MAX_RX_LENGTH, DMA_FROM_DEVICE); ++ return done; ++} + -+ skb_put(priv->rx_skb[idx], pktlen); -+ priv->rx_skb[idx]->dev = priv->netdev; -+ priv->rx_skb[idx]->protocol = eth_type_trans(priv->rx_skb[idx], priv->netdev); -+ if (priv->rx_dma[idx].rxd4 & priv->soc->checksum_bit) -+ priv->rx_skb[idx]->ip_summed = CHECKSUM_UNNECESSARY; -+ else -+ priv->rx_skb[idx]->ip_summed = CHECKSUM_NONE; -+ priv->netdev->stats.rx_packets++; -+ priv->netdev->stats.rx_bytes += pktlen; ++static int fe_poll_tx(struct fe_priv *priv, int budget) ++{ ++ struct net_device *netdev = priv->netdev; ++ struct device *dev = &netdev->dev; ++ unsigned int bytes_compl = 0; ++ struct sk_buff *skb; ++ struct fe_tx_dma *txd; ++ int done = 0, idx; ++ u32 udf_bit = priv->soc->tx_udf_bit; + -+#ifdef CONFIG_INET_LRO -+ if (priv->soc->get_skb_header && priv->rx_skb[idx]->ip_summed == CHECKSUM_UNNECESSARY) -+ lro_receive_skb(&priv->lro_mgr, priv->rx_skb[idx], NULL); -+ else -+#endif -+ netif_receive_skb(priv->rx_skb[idx]); ++ idx = priv->tx_free_idx; ++ while (done < budget) { ++ txd = &priv->tx_dma[idx]; ++ skb = priv->tx_skb[idx]; + -+ priv->rx_skb[idx] = new_skb; ++ if (!(txd->txd2 & TX_DMA_DONE) || !skb) ++ break; + -+ dma_addr = dma_map_single(&priv->netdev->dev, -+ new_skb->data, -+ MAX_RX_LENGTH, -+ DMA_FROM_DEVICE); -+ priv->rx_dma[idx].rxd1 = (unsigned int) dma_addr; -+ wmb(); -+ } else { -+ priv->netdev->stats.rx_dropped++; -+ } ++ txd_unmap_page1(dev, txd); + -+ if (priv->soc->rx_dma) -+ priv->soc->rx_dma(priv, idx, MAX_RX_LENGTH); -+ else -+ priv->rx_dma[idx].rxd2 = RX_DMA_LSO; -+ fe_reg_w32(idx, FE_REG_RX_CALC_IDX0); ++ if (txd->txd4 & udf_bit) ++ txd_unmap_single(dev, txd); ++ else ++ txd_unmap_page0(dev, txd); + -+ rx++; -+ } else { -+ complete = 1; ++ if (skb != (struct sk_buff *) DMA_DUMMY_DESC) { ++ bytes_compl += skb->len; ++ dev_kfree_skb_any(skb); ++ done++; + } ++ priv->tx_skb[idx] = NULL; ++ idx = NEXT_TX_DESP_IDX(idx); + } ++ priv->tx_free_idx = idx; + -+#ifdef CONFIG_INET_LRO -+ if (priv->soc->get_skb_header) -+ lro_flush_all(&priv->lro_mgr); -+#endif -+ if (complete) { -+ napi_complete(&priv->rx_napi); -+ fe_int_enable(priv->soc->rx_dly_int); ++ if (!done) ++ return 0; ++ ++ netdev_completed_queue(netdev, done, bytes_compl); ++ if (unlikely(netif_queue_stopped(netdev) && ++ netif_carrier_ok(netdev))) { ++ netif_wake_queue(netdev); + } + -+ return rx; ++ return done; +} + -+static void fe_tx_housekeeping(unsigned long ptr) ++static int fe_poll(struct napi_struct *napi, int budget) +{ -+ struct net_device *dev = (struct net_device*)ptr; -+ struct fe_priv *priv = netdev_priv(dev); -+ unsigned int bytes_compl = 0; -+ unsigned int pkts_compl = 0; -+ -+ spin_lock(&priv->page_lock); -+ while (1) { -+ struct fe_tx_dma *txd; ++ struct fe_priv *priv = container_of(napi, struct fe_priv, rx_napi); ++ struct fe_hw_stats *hwstat = priv->hw_stats; ++ int tx_done, rx_done; ++ u32 status, mask; ++ u32 tx_intr, rx_intr; + -+ txd = &priv->tx_dma[priv->tx_free_idx]; ++ status = fe_reg_r32(FE_REG_FE_INT_STATUS); ++ tx_intr = priv->soc->tx_dly_int; ++ rx_intr = priv->soc->rx_dly_int; ++ tx_done = rx_done = 0; ++ ++poll_again: ++ if (status & tx_intr) { ++ tx_done += fe_poll_tx(priv, budget - tx_done); ++ if (tx_done < budget) { ++ fe_reg_w32(tx_intr, FE_REG_FE_INT_STATUS); ++ } ++ status = fe_reg_r32(FE_REG_FE_INT_STATUS); ++ } + -+ if (!(txd->txd2 & TX_DMA_DONE) || !(priv->tx_skb[priv->tx_free_idx])) -+ break; ++ if (status & rx_intr) { ++ rx_done += fe_poll_rx(napi, budget - rx_done, priv); ++ if (rx_done < budget) { ++ fe_reg_w32(rx_intr, FE_REG_FE_INT_STATUS); ++ } ++ } + -+ if (priv->tx_skb[priv->tx_free_idx] != (struct sk_buff *) DMA_DUMMY_DESC) { -+ bytes_compl += priv->tx_skb[priv->tx_free_idx]->len; -+ dev_kfree_skb_irq(priv->tx_skb[priv->tx_free_idx]); ++ if (unlikely(hwstat && (status & FE_CNT_GDM_AF))) { ++ if (spin_trylock(&hwstat->stats_lock)) { ++ fe_stats_update(priv); ++ spin_unlock(&hwstat->stats_lock); + } -+ pkts_compl++; -+ priv->tx_skb[priv->tx_free_idx] = NULL; -+ priv->tx_free_idx++; -+ if (priv->tx_free_idx >= NUM_DMA_DESC) -+ priv->tx_free_idx = 0; ++ fe_reg_w32(FE_CNT_GDM_AF, FE_REG_FE_INT_STATUS); + } + -+ netdev_completed_queue(priv->netdev, pkts_compl, bytes_compl); -+ spin_unlock(&priv->page_lock); ++ if (unlikely(netif_msg_intr(priv))) { ++ mask = fe_reg_r32(FE_REG_FE_INT_ENABLE); ++ netdev_info(priv->netdev, ++ "done tx %d, rx %d, intr 0x%x/0x%x\n", ++ tx_done, rx_done, status, mask); ++ } + -+ fe_int_enable(priv->soc->tx_dly_int); ++ if ((tx_done < budget) && (rx_done < budget)) { ++ status = fe_reg_r32(FE_REG_FE_INT_STATUS); ++ if (status & (tx_intr | rx_intr )) { ++ goto poll_again; ++ } ++ napi_complete(napi); ++ fe_int_enable(tx_intr | rx_intr); ++ } ++ ++ return rx_done; +} + +static void fe_tx_timeout(struct net_device *dev) +{ + struct fe_priv *priv = netdev_priv(dev); + -+ tasklet_schedule(&priv->tx_tasklet); + priv->netdev->stats.tx_errors++; -+ netdev_err(dev, "transmit timed out, waking up the queue\n"); ++ netif_err(priv, tx_err, dev, ++ "transmit timed out, waking up the queue\n"); ++ netif_info(priv, drv, dev, ": dma_cfg:%08x, free_idx:%d, " \ ++ "dma_ctx_idx=%u, dma_crx_idx=%u\n", ++ fe_reg_r32(FE_REG_PDMA_GLO_CFG), priv->tx_free_idx, ++ fe_reg_r32(FE_REG_TX_CTX_IDX0), ++ fe_reg_r32(FE_REG_RX_CALC_IDX0)); + netif_wake_queue(dev); +} + +static irqreturn_t fe_handle_irq(int irq, void *dev) +{ + struct fe_priv *priv = netdev_priv(dev); -+ unsigned int status; -+ unsigned int mask; ++ u32 status, dly_int; + + status = fe_reg_r32(FE_REG_FE_INT_STATUS); -+ mask = fe_reg_r32(FE_REG_FE_INT_ENABLE); + -+ if (!(status & mask)) ++ if (unlikely(!status)) + return IRQ_NONE; + -+ if (status & priv->soc->rx_dly_int) { -+ fe_int_disable(priv->soc->rx_dly_int); ++ dly_int = (priv->soc->rx_dly_int | priv->soc->tx_dly_int); ++ if (likely(status & dly_int)) { ++ fe_int_disable(dly_int); + napi_schedule(&priv->rx_napi); ++ } else { ++ fe_reg_w32(status, FE_REG_FE_INT_STATUS); + } + -+ if (status & priv->soc->tx_dly_int) { -+ fe_int_disable(priv->soc->tx_dly_int); -+ tasklet_schedule(&priv->tx_tasklet); ++ return IRQ_HANDLED; ++} ++ ++int fe_set_clock_cycle(struct fe_priv *priv) ++{ ++ unsigned long sysclk = priv->sysclk; ++ ++ if (!sysclk) { ++ return -EINVAL; + } + -+ fe_reg_w32(status, FE_REG_FE_INT_STATUS); ++ sysclk /= FE_US_CYC_CNT_DIVISOR; ++ sysclk <<= FE_US_CYC_CNT_SHIFT; + -+ return IRQ_HANDLED; ++ fe_w32((fe_r32(FE_FE_GLO_CFG) & ++ ~(FE_US_CYC_CNT_MASK << FE_US_CYC_CNT_SHIFT)) | ++ sysclk, ++ FE_FE_GLO_CFG); ++ return 0; ++} ++ ++void fe_fwd_config(struct fe_priv *priv) ++{ ++ u32 fwd_cfg; ++ ++ fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG); ++ ++ /* disable jumbo frame */ ++ if (priv->flags & FE_FLAG_JUMBO_FRAME) ++ fwd_cfg &= ~FE_GDM1_JMB_EN; ++ ++ /* set unicast/multicast/broadcast frame to cpu */ ++ fwd_cfg &= ~0xffff; ++ ++ fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG); ++} ++ ++static void fe_rxcsum_config(bool enable) ++{ ++ if (enable) ++ fe_w32(fe_r32(FE_GDMA1_FWD_CFG) | (FE_GDM1_ICS_EN | ++ FE_GDM1_TCS_EN | FE_GDM1_UCS_EN), ++ FE_GDMA1_FWD_CFG); ++ else ++ fe_w32(fe_r32(FE_GDMA1_FWD_CFG) & ~(FE_GDM1_ICS_EN | ++ FE_GDM1_TCS_EN | FE_GDM1_UCS_EN), ++ FE_GDMA1_FWD_CFG); ++} ++ ++static void fe_txcsum_config(bool enable) ++{ ++ if (enable) ++ fe_w32(fe_r32(FE_CDMA_CSG_CFG) | (FE_ICS_GEN_EN | ++ FE_TCS_GEN_EN | FE_UCS_GEN_EN), ++ FE_CDMA_CSG_CFG); ++ else ++ fe_w32(fe_r32(FE_CDMA_CSG_CFG) & ~(FE_ICS_GEN_EN | ++ FE_TCS_GEN_EN | FE_UCS_GEN_EN), ++ FE_CDMA_CSG_CFG); ++} ++ ++void fe_csum_config(struct fe_priv *priv) ++{ ++ struct net_device *dev = priv_netdev(priv); ++ ++ fe_txcsum_config((dev->features & NETIF_F_IP_CSUM)); ++ fe_rxcsum_config((dev->features & NETIF_F_RXCSUM)); +} + +static int fe_hw_init(struct net_device *dev) +{ + struct fe_priv *priv = netdev_priv(dev); -+ int err; ++ int i, err; + + err = devm_request_irq(priv->device, dev->irq, fe_handle_irq, 0, + dev_name(priv->device), dev); + if (err) + return err; + -+ err = fe_alloc_rx(priv); -+ if (!err) -+ err = fe_alloc_tx(priv); -+ if (err) -+ return err; -+ + if (priv->soc->set_mac) + priv->soc->set_mac(priv, dev->dev_addr); + else @@ -3999,32 +4432,16 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + + fe_int_disable(priv->soc->tx_dly_int | priv->soc->rx_dly_int); + -+ tasklet_init(&priv->tx_tasklet, fe_tx_housekeeping, (unsigned long)dev); -+ -+ if (priv->soc->fwd_config) { -+ priv->soc->fwd_config(priv); -+ } else { -+ unsigned long sysclk = priv->sysclk; -+ -+ if (!sysclk) { -+ netdev_err(dev, "unable to get clock\n"); -+ return -EINVAL; -+ } -+ -+ sysclk /= FE_US_CYC_CNT_DIVISOR; -+ sysclk <<= FE_US_CYC_CNT_SHIFT; -+ -+ fe_w32((fe_r32(FE_FE_GLO_CFG) & -+ ~(FE_US_CYC_CNT_MASK << FE_US_CYC_CNT_SHIFT)) | sysclk, -+ FE_FE_GLO_CFG); ++ /* frame engine will push VLAN tag regarding to VIDX feild in Tx desc. */ ++ if (fe_reg_table[FE_REG_FE_DMA_VID_BASE]) ++ for (i = 0; i < 16; i += 2) ++ fe_w32(((i + 1) << 16) + i, ++ fe_reg_table[FE_REG_FE_DMA_VID_BASE] + ++ (i * 2)); + -+ fe_w32(fe_r32(FE_GDMA1_FWD_CFG) & ~0xffff, FE_GDMA1_FWD_CFG); -+ fe_w32(fe_r32(FE_GDMA1_FWD_CFG) | (FE_GDM1_ICS_EN | FE_GDM1_TCS_EN | FE_GDM1_UCS_EN), -+ FE_GDMA1_FWD_CFG); -+ fe_w32(fe_r32(FE_CDMA_CSG_CFG) | (FE_ICS_GEN_EN | FE_TCS_GEN_EN | FE_UCS_GEN_EN), -+ FE_CDMA_CSG_CFG); -+ fe_w32(FE_PSE_FQFC_CFG_INIT, FE_PSE_FQ_CFG); -+ } ++ BUG_ON(!priv->soc->fwd_config); ++ if (priv->soc->fwd_config(priv)) ++ netdev_err(dev, "unable to get clock\n"); + + fe_w32(1, FE_FE_RST_GL); + fe_w32(0, FE_FE_RST_GL); @@ -4037,6 +4454,11 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + struct fe_priv *priv = netdev_priv(dev); + unsigned long flags; + u32 val; ++ int err; ++ ++ err = fe_init_dma(priv); ++ if (err) ++ goto err_out; + + spin_lock_irqsave(&priv->page_lock, flags); + napi_enable(&priv->rx_napi); @@ -4057,16 +4479,21 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + fe_int_enable(priv->soc->tx_dly_int | priv->soc->rx_dly_int); + + return 0; ++ ++err_out: ++ fe_free_dma(priv); ++ return err; +} + +static int fe_stop(struct net_device *dev) +{ + struct fe_priv *priv = netdev_priv(dev); + unsigned long flags; ++ int i; + + fe_int_disable(priv->soc->tx_dly_int | priv->soc->rx_dly_int); + -+ netif_stop_queue(dev); ++ netif_tx_disable(dev); + + if (priv->phy) + priv->phy->stop(priv); @@ -4079,6 +4506,18 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + FE_REG_PDMA_GLO_CFG); + spin_unlock_irqrestore(&priv->page_lock, flags); + ++ /* wait dma stop */ ++ for (i = 0; i < 10; i++) { ++ if (fe_reg_r32(FE_REG_PDMA_GLO_CFG) & ++ (FE_TX_DMA_BUSY | FE_RX_DMA_BUSY)) { ++ msleep(10); ++ continue; ++ } ++ break; ++ } ++ ++ fe_free_dma(priv); ++ + return 0; +} + @@ -4101,17 +4540,17 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + if (err) + return err; + -+ if (priv->phy) { -+ err = priv->phy->connect(priv); -+ if (err) -+ goto err_mdio_cleanup; -+ } -+ + if (priv->soc->port_init) + for_each_child_of_node(priv->device->of_node, port) + if (of_device_is_compatible(port, "ralink,eth-port") && of_device_is_available(port)) + priv->soc->port_init(priv, port); + ++ if (priv->phy) { ++ err = priv->phy->connect(priv); ++ if (err) ++ goto err_phy_disconnect; ++ } ++ + err = fe_hw_init(dev); + if (err) + goto err_phy_disconnect; @@ -4124,7 +4563,6 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c +err_phy_disconnect: + if (priv->phy) + priv->phy->disconnect(priv); -+err_mdio_cleanup: + fe_mdio_cleanup(priv); + + return err; @@ -4134,16 +4572,81 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c +{ + struct fe_priv *priv = netdev_priv(dev); + -+ tasklet_kill(&priv->tx_tasklet); -+ + if (priv->phy) + priv->phy->disconnect(priv); + fe_mdio_cleanup(priv); + + fe_reg_w32(0, FE_REG_FE_INT_ENABLE); + free_irq(dev->irq, dev); ++} + -+ fe_free_dma(priv); ++static int fe_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ ++ if (!priv->phy_dev) ++ return -ENODEV; ++ ++ switch (cmd) { ++ case SIOCETHTOOL: ++ return phy_ethtool_ioctl(priv->phy_dev, ++ (void *) ifr->ifr_data); ++ case SIOCGMIIPHY: ++ case SIOCGMIIREG: ++ case SIOCSMIIREG: ++ return phy_mii_ioctl(priv->phy_dev, ifr, cmd); ++ default: ++ break; ++ } ++ ++ return -EOPNOTSUPP; ++} ++ ++static int fe_change_mtu(struct net_device *dev, int new_mtu) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ int frag_size, old_mtu; ++ u32 fwd_cfg; ++ ++ if (!(priv->flags & FE_FLAG_JUMBO_FRAME)) ++ return eth_change_mtu(dev, new_mtu); ++ ++ frag_size = fe_max_frag_size(new_mtu); ++ if (new_mtu < 68 || frag_size > PAGE_SIZE) ++ return -EINVAL; ++ ++ old_mtu = dev->mtu; ++ dev->mtu = new_mtu; ++ ++ /* return early if the buffer sizes will not change */ ++ if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN) ++ return 0; ++ if (old_mtu > ETH_DATA_LEN && new_mtu > ETH_DATA_LEN) ++ return 0; ++ ++ if (new_mtu <= ETH_DATA_LEN) { ++ priv->frag_size = fe_max_frag_size(ETH_DATA_LEN); ++ priv->rx_buf_size = fe_max_buf_size(ETH_DATA_LEN); ++ } else { ++ priv->frag_size = PAGE_SIZE; ++ priv->rx_buf_size = fe_max_buf_size(PAGE_SIZE); ++ } ++ ++ if (!netif_running(dev)) ++ return 0; ++ ++ fe_stop(dev); ++ fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG); ++ if (new_mtu <= ETH_DATA_LEN) ++ fwd_cfg &= ~FE_GDM1_JMB_EN; ++ else { ++ fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT); ++ fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) << ++ FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN; ++ } ++ fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG); ++ ++ return fe_open(dev); +} + +static const struct net_device_ops fe_netdev_ops = { @@ -4152,17 +4655,19 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + .ndo_open = fe_open, + .ndo_stop = fe_stop, + .ndo_start_xmit = fe_start_xmit, -+ .ndo_tx_timeout = fe_tx_timeout, + .ndo_set_mac_address = fe_set_mac_address, -+ .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, ++ .ndo_do_ioctl = fe_do_ioctl, ++ .ndo_change_mtu = fe_change_mtu, ++ .ndo_tx_timeout = fe_tx_timeout, ++ .ndo_get_stats64 = fe_get_stats64, +}; + +static int fe_probe(struct platform_device *pdev) +{ + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + const struct of_device_id *match; -+ struct fe_soc_data *soc = NULL; ++ struct fe_soc_data *soc; + struct net_device *netdev; + struct fe_priv *priv; + struct clk *sysclk; @@ -4173,46 +4678,54 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + match = of_match_device(of_fe_match, &pdev->dev); + soc = (struct fe_soc_data *) match->data; + -+ if (soc->init_data) -+ soc->init_data(soc); + if (soc->reg_table) + fe_reg_table = soc->reg_table; ++ else ++ soc->reg_table = fe_reg_table; + + fe_base = devm_request_and_ioremap(&pdev->dev, res); -+ if (!fe_base) -+ return -ENOMEM; ++ if (!fe_base) { ++ err = -EADDRNOTAVAIL; ++ goto err_out; ++ } + -+ netdev = alloc_etherdev(sizeof(struct fe_priv)); ++ netdev = alloc_etherdev(sizeof(*priv)); + if (!netdev) { + dev_err(&pdev->dev, "alloc_etherdev failed\n"); -+ return -ENOMEM; ++ err = -ENOMEM; ++ goto err_iounmap; + } + -+ strcpy(netdev->name, "eth%d"); ++ SET_NETDEV_DEV(netdev, &pdev->dev); + netdev->netdev_ops = &fe_netdev_ops; + netdev->base_addr = (unsigned long) fe_base; + netdev->watchdog_timeo = TX_TIMEOUT; -+ netdev->features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; -+ -+ if (fe_reg_table[FE_REG_FE_DMA_VID_BASE]) -+ netdev->features |= NETIF_F_HW_VLAN_CTAG_TX; -+ -+ if (soc->tso) { -+ dev_info(&pdev->dev, "Enabling TSO\n"); -+ netdev->features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_IPV6_CSUM; -+ } -+ netdev->hw_features = netdev->features; + + netdev->irq = platform_get_irq(pdev, 0); + if (netdev->irq < 0) { + dev_err(&pdev->dev, "no IRQ resource found\n"); -+ kfree(netdev); -+ return -ENXIO; ++ err = -ENXIO; ++ goto err_free_dev; + } + ++ if (soc->init_data) ++ soc->init_data(soc, netdev); ++ /* fake NETIF_F_HW_VLAN_CTAG_RX for good GRO performance */ ++ netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; ++ netdev->vlan_features = netdev->hw_features & ++ ~(NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX); ++ netdev->features |= netdev->hw_features; ++ + priv = netdev_priv(netdev); -+ memset(priv, 0, sizeof(struct fe_priv)); + spin_lock_init(&priv->page_lock); ++ if (fe_reg_table[FE_REG_FE_COUNTER_BASE]) { ++ priv->hw_stats = kzalloc(sizeof(*priv->hw_stats), GFP_KERNEL); ++ if (!priv->hw_stats) { ++ err = -ENOMEM; ++ goto err_free_dev; ++ } ++ spin_lock_init(&priv->hw_stats->stats_lock); ++ } + + sysclk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(sysclk)) @@ -4221,35 +4734,37 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + priv->netdev = netdev; + priv->device = &pdev->dev; + priv->soc = soc; ++ priv->msg_enable = netif_msg_init(fe_msg_level, FE_DEFAULT_MSG_ENABLE); ++ priv->frag_size = fe_max_frag_size(ETH_DATA_LEN); ++ priv->rx_buf_size = fe_max_buf_size(ETH_DATA_LEN); ++ if (priv->frag_size > PAGE_SIZE) { ++ dev_err(&pdev->dev, "error frag size.\n"); ++ err = -EINVAL; ++ goto err_free_dev; ++ } ++ ++ netif_napi_add(netdev, &priv->rx_napi, fe_poll, 32); ++ fe_set_ethtool_ops(netdev); + + err = register_netdev(netdev); + if (err) { + dev_err(&pdev->dev, "error bringing up device\n"); -+ kfree(netdev); -+ return err; -+ } -+ netif_napi_add(netdev, &priv->rx_napi, fe_poll_rx, 32); -+ -+#ifdef CONFIG_INET_LRO -+ if (priv->soc->get_skb_header) { -+ priv->lro_mgr.dev = netdev; -+ memset(&priv->lro_mgr.stats, 0, sizeof(priv->lro_mgr.stats)); -+ priv->lro_mgr.features = LRO_F_NAPI; -+ priv->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY; -+ priv->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY; -+ priv->lro_mgr.max_desc = ARRAY_SIZE(priv->lro_arr); -+ priv->lro_mgr.max_aggr = 64; -+ priv->lro_mgr.frag_align_pad = 0; -+ priv->lro_mgr.lro_arr = priv->lro_arr; -+ priv->lro_mgr.get_skb_header = priv->soc->get_skb_header; ++ goto err_free_dev; + } -+#endif + + platform_set_drvdata(pdev, netdev); + -+ netdev_info(netdev, "done loading\n"); ++ netif_info(priv, probe, netdev, "ralink at 0x%08lx, irq %d\n", ++ netdev->base_addr, netdev->irq); + + return 0; ++ ++err_free_dev: ++ free_netdev(netdev); ++err_iounmap: ++ devm_iounmap(&pdev->dev, fe_base); ++err_out: ++ return err; +} + +static int fe_remove(struct platform_device *pdev) @@ -4257,11 +4772,13 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c + struct net_device *dev = platform_get_drvdata(pdev); + struct fe_priv *priv = netdev_priv(dev); + -+ netif_stop_queue(dev); + netif_napi_del(&priv->rx_napi); ++ if (priv->hw_stats) ++ kfree(priv->hw_stats); + + unregister_netdev(dev); + free_netdev(dev); ++ platform_set_drvdata(pdev, NULL); + + return 0; +} @@ -4303,11 +4820,12 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.c +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); +MODULE_DESCRIPTION("Ethernet driver for Ralink SoC"); ++MODULE_VERSION(FE_DRV_VERSION); Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h 2014-10-28 10:43:11.894131220 +0100 -@@ -0,0 +1,384 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,448 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -4334,8 +4852,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h +#include <linux/netdevice.h> +#include <linux/dma-mapping.h> +#include <linux/phy.h> -+#include <linux/inet_lro.h> -+ ++#include <linux/ethtool.h> + +enum fe_reg { + FE_REG_PDMA_GLO_CFG = 0, @@ -4350,17 +4867,24 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h + FE_REG_FE_INT_ENABLE, + FE_REG_FE_INT_STATUS, + FE_REG_FE_DMA_VID_BASE, ++ FE_REG_FE_COUNTER_BASE, + FE_REG_COUNT +}; + -+#define NUM_DMA_DESC 0x100 ++#define FE_DRV_VERSION "0.1.0" ++ ++/* power of 2 to let NEXT_TX_DESP_IDX work */ ++#define NUM_DMA_DESC (1 << 7) ++#define MAX_DMA_DESC 0xfff + +#define FE_DELAY_EN_INT 0x80 +#define FE_DELAY_MAX_INT 0x04 +#define FE_DELAY_MAX_TOUT 0x04 ++#define FE_DELAY_TIME 20 +#define FE_DELAY_CHAN (((FE_DELAY_EN_INT | FE_DELAY_MAX_INT) << 8) | FE_DELAY_MAX_TOUT) +#define FE_DELAY_INIT ((FE_DELAY_CHAN << 16) | FE_DELAY_CHAN) +#define FE_PSE_FQFC_CFG_INIT 0x80504000 ++#define FE_PSE_FQFC_CFG_256Q 0xff908000 + +/* interrupt bits */ +#define FE_CNT_PPE_AF BIT(31) @@ -4540,6 +5064,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h +#define FE_MDIO_CFG_TX_CLK_SKEW_INV 3 + +/* uni-cast port */ ++#define FE_GDM1_JMB_LEN_MASK 0xf ++#define FE_GDM1_JMB_LEN_SHIFT 28 +#define FE_GDM1_ICS_EN BIT(22) +#define FE_GDM1_TCS_EN BIT(21) +#define FE_GDM1_UCS_EN BIT(20) @@ -4590,14 +5116,30 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h +#define TX_DMA_PLEN0_MASK ((0x3fff) << 16) +#define TX_DMA_PLEN0(_x) (((_x) & 0x3fff) << 16) +#define TX_DMA_PLEN1(_x) ((_x) & 0x3fff) ++#define TX_DMA_GET_PLEN0(_x) (((_x) >> 16 ) & 0x3fff) ++#define TX_DMA_GET_PLEN1(_x) ((_x) & 0x3fff) +#define TX_DMA_LS1 BIT(14) -+#define TX_DMA_LSO BIT(30) ++#define TX_DMA_LS0 BIT(30) +#define TX_DMA_DONE BIT(31) ++ ++#define TX_DMA_INS_VLAN BIT(7) ++#define TX_DMA_INS_PPPOE BIT(12) +#define TX_DMA_QN(_x) ((_x) << 16) +#define TX_DMA_PN(_x) ((_x) << 24) +#define TX_DMA_QN_MASK TX_DMA_QN(0x7) +#define TX_DMA_PN_MASK TX_DMA_PN(0x7) ++#define TX_DMA_UDF BIT(20) +#define TX_DMA_CHKSUM (0x7 << 29) ++#define TX_DMA_TSO BIT(28) ++ ++/* frame engine counters */ ++#define FE_PPE_AC_BCNT0 (FE_CMTABLE_OFFSET + 0x00) ++#define FE_GDMA1_TX_GBCNT (FE_CMTABLE_OFFSET + 0x300) ++#define FE_GDMA2_TX_GBCNT (FE_GDMA1_TX_GBCNT + 0x40) ++ ++/* phy device flags */ ++#define FE_PHY_FLAG_PORT BIT(0) ++#define FE_PHY_FLAG_ATTACH BIT(1) + +struct fe_tx_dma { + unsigned int txd1; @@ -4629,10 +5171,10 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h + unsigned char mac[6]; + const u32 *reg_table; + -+ void (*init_data)(struct fe_soc_data *data); ++ void (*init_data)(struct fe_soc_data *data, struct net_device *netdev); + void (*reset_fe)(void); + void (*set_mac)(struct fe_priv *priv, unsigned char *mac); -+ void (*fwd_config)(struct fe_priv *priv); ++ int (*fwd_config)(struct fe_priv *priv); + void (*tx_dma)(struct fe_priv *priv, int idx, struct sk_buff *skb); + void (*rx_dma)(struct fe_priv *priv, int idx, int len); + int (*switch_init)(struct fe_priv *priv); @@ -4644,16 +5186,40 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h + int (*mdio_write)(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val); + int (*mdio_read)(struct mii_bus *bus, int phy_addr, int phy_reg); + void (*mdio_adjust_link)(struct fe_priv *priv, int port); -+ int (*get_skb_header)(struct sk_buff *skb, void **iphdr, void **tcph, u64 *hdr_flags, void *priv); + + void *swpriv; + u32 pdma_glo_cfg; + u32 rx_dly_int; + u32 tx_dly_int; + u32 checksum_bit; -+ u32 tso; ++ u32 tx_udf_bit; ++}; + -+ int min_pkt_len; ++#define FE_FLAG_PADDING_64B BIT(0) ++#define FE_FLAG_PADDING_BUG BIT(1) ++#define FE_FLAG_JUMBO_FRAME BIT(2) ++ ++#define FE_STAT_REG_DECLARE \ ++ _FE(tx_bytes) \ ++ _FE(tx_packets) \ ++ _FE(tx_skip) \ ++ _FE(tx_collisions) \ ++ _FE(rx_bytes) \ ++ _FE(rx_packets) \ ++ _FE(rx_overflow) \ ++ _FE(rx_fcs_errors) \ ++ _FE(rx_short_errors) \ ++ _FE(rx_long_errors) \ ++ _FE(rx_checksum_errors) \ ++ _FE(rx_flow_control_packets) ++ ++struct fe_hw_stats ++{ ++ spinlock_t stats_lock; ++ struct u64_stats_sync syncp; ++#define _FE(x) u64 x; ++FE_STAT_REG_DECLARE ++#undef _FE +}; + +struct fe_priv @@ -4662,28 +5228,32 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h + + struct fe_soc_data *soc; + struct net_device *netdev; ++ u32 msg_enable; ++ u32 flags; ++ + struct device *device; + unsigned long sysclk; + ++ u16 frag_size; ++ u16 rx_buf_size; + struct fe_rx_dma *rx_dma; -+ struct napi_struct rx_napi; -+ struct sk_buff *rx_skb[NUM_DMA_DESC]; ++ u8 **rx_data; + dma_addr_t rx_phys; ++ struct napi_struct rx_napi; + + struct fe_tx_dma *tx_dma; -+ struct tasklet_struct tx_tasklet; -+ struct sk_buff *tx_skb[NUM_DMA_DESC]; ++ struct sk_buff **tx_skb; + dma_addr_t tx_phys; + unsigned int tx_free_idx; + + struct fe_phy *phy; + struct mii_bus *mii_bus; -+ int mii_irq[PHY_MAX_ADDR]; ++ struct phy_device *phy_dev; ++ u32 phy_flags; + + int link[8]; + -+ struct net_lro_mgr lro_mgr; -+ struct net_lro_desc lro_arr[8]; ++ struct fe_hw_stats *hw_stats; +}; + +extern const struct of_device_id of_fe_match[]; @@ -4691,12 +5261,24 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_soc_eth.h +void fe_w32(u32 val, unsigned reg); +u32 fe_r32(unsigned reg); + ++int fe_set_clock_cycle(struct fe_priv *priv); ++void fe_csum_config(struct fe_priv *priv); ++void fe_stats_update(struct fe_priv *priv); ++void fe_fwd_config(struct fe_priv *priv); ++void fe_reg_w32(u32 val, enum fe_reg reg); ++u32 fe_reg_r32(enum fe_reg reg); ++ ++static inline void *priv_netdev(struct fe_priv *priv) ++{ ++ return (char *)priv - ALIGN(sizeof(struct net_device), NETDEV_ALIGN); ++} ++ +#endif /* FE_ETH_H */ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c 2014-10-28 10:43:11.894131220 +0100 -@@ -0,0 +1,172 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,164 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -4731,8 +5313,10 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c +#define MT7620A_RESET_ESW BIT(23) +#define MT7620_L4_VALID BIT(23) + ++#define MT7620_TX_DMA_UDF BIT(15) ++#define TX_DMA_FP_BMAP ((0xff) << 19) ++ +#define SYSC_REG_RESET_CTRL 0x34 -+#define MAX_RX_LENGTH 1536 + +#define CDMA_ICS_EN BIT(2) +#define CDMA_UCS_EN BIT(1) @@ -4742,7 +5326,13 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c +#define GDMA_TCS_EN BIT(21) +#define GDMA_UCS_EN BIT(20) + -+static const u32 rt5350_reg_table[FE_REG_COUNT] = { ++/* frame engine counters */ ++#define MT7620_REG_MIB_OFFSET 0x1000 ++#define MT7620_PPE_AC_BCNT0 (MT7620_REG_MIB_OFFSET + 0x00) ++#define MT7620_GDM1_TX_GBCNT (MT7620_REG_MIB_OFFSET + 0x300) ++#define MT7620_GDM2_TX_GBCNT (MT7620_GDM1_TX_GBCNT + 0x40) ++ ++static const u32 mt7620_reg_table[FE_REG_COUNT] = { + [FE_REG_PDMA_GLO_CFG] = RT5350_PDMA_GLO_CFG, + [FE_REG_PDMA_RST_CFG] = RT5350_PDMA_RST_CFG, + [FE_REG_DLY_INT_CFG] = RT5350_DLY_INT_CFG, @@ -4755,6 +5345,7 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c + [FE_REG_FE_INT_ENABLE] = RT5350_FE_INT_ENABLE, + [FE_REG_FE_INT_STATUS] = RT5350_FE_INT_STATUS, + [FE_REG_FE_DMA_VID_BASE] = MT7620_DMA_VID, ++ [FE_REG_FE_COUNTER_BASE] = MT7620_GDM1_TX_GBCNT, +}; + +static void mt7620_fe_reset(void) @@ -4763,40 +5354,45 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c + rt_sysc_w32(0, SYSC_REG_RESET_CTRL); +} + -+static void mt7620_fwd_config(struct fe_priv *priv) ++static void mt7620_rxcsum_config(bool enable) +{ -+ int i; -+ -+ /* frame engine will push VLAN tag regarding to VIDX feild in Tx desc. */ -+ for (i = 0; i < 16; i += 2) -+ fe_w32(((i + 1) << 16) + i, MT7620_DMA_VID + (i * 2)); ++ if (enable) ++ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) | (GDMA_ICS_EN | ++ GDMA_TCS_EN | GDMA_UCS_EN), ++ MT7620A_GDMA1_FWD_CFG); ++ else ++ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~(GDMA_ICS_EN | ++ GDMA_TCS_EN | GDMA_UCS_EN), ++ MT7620A_GDMA1_FWD_CFG); ++} + -+ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~7, MT7620A_GDMA1_FWD_CFG); -+ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) | (GDMA_ICS_EN | GDMA_TCS_EN | GDMA_UCS_EN), MT7620A_GDMA1_FWD_CFG); -+ fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) | (CDMA_ICS_EN | CDMA_UCS_EN | CDMA_TCS_EN), MT7620A_CDMA_CSG_CFG); ++static void mt7620_txcsum_config(bool enable) ++{ ++ if (enable) ++ fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) | (CDMA_ICS_EN | ++ CDMA_UCS_EN | CDMA_TCS_EN), ++ MT7620A_CDMA_CSG_CFG); ++ else ++ fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) & ~(CDMA_ICS_EN | ++ CDMA_UCS_EN | CDMA_TCS_EN), ++ MT7620A_CDMA_CSG_CFG); +} + -+static void mt7620_tx_dma(struct fe_priv *priv, int idx, struct sk_buff *skb) ++static int mt7620_fwd_config(struct fe_priv *priv) +{ -+ unsigned int nr_frags = 0; -+ unsigned int len = 0; ++ struct net_device *dev = priv_netdev(priv); + -+ if (skb) { -+ nr_frags = skb_shinfo(skb)->nr_frags; -+ len = skb->len - skb->data_len; -+ } ++ fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~7, MT7620A_GDMA1_FWD_CFG); + -+ if (!skb) -+ priv->tx_dma[idx].txd2 = TX_DMA_LSO | TX_DMA_DONE; -+ else if (!nr_frags) -+ priv->tx_dma[idx].txd2 = TX_DMA_LSO | TX_DMA_PLEN0(len); -+ else -+ priv->tx_dma[idx].txd2 = TX_DMA_PLEN0(len); ++ mt7620_txcsum_config((dev->features & NETIF_F_IP_CSUM)); ++ mt7620_rxcsum_config((dev->features & NETIF_F_RXCSUM)); + -+ if(skb && vlan_tx_tag_present(skb)) -+ priv->tx_dma[idx].txd4 = 0x80 | (vlan_tx_tag_get(skb) >> 13) << 4 | (vlan_tx_tag_get(skb) & 0xF); -+ else -+ priv->tx_dma[idx].txd4 = 0; ++ return 0; ++} ++ ++static void mt7620_tx_dma(struct fe_priv *priv, int idx, struct sk_buff *skb) ++{ ++ priv->tx_dma[idx].txd4 = 0; +} + +static void mt7620_rx_dma(struct fe_priv *priv, int idx, int len) @@ -4804,37 +5400,18 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c + priv->rx_dma[idx].rxd2 = RX_DMA_PLEN0(len); +} + -+#ifdef CONFIG_INET_LRO -+static int -+mt7620_get_skb_header(struct sk_buff *skb, void **iphdr, void **tcph, -+ u64 *hdr_flags, void *_priv) ++static void mt7620_init_data(struct fe_soc_data *data, ++ struct net_device *netdev) +{ -+ struct iphdr *iph = NULL; -+ int vhdr_len = 0; ++ struct fe_priv *priv = netdev_priv(netdev); + -+ /* -+ * Make sure that this packet is Ethernet II, is not VLAN -+ * tagged, is IPv4, has a valid IP header, and is TCP. -+ */ -+ if (skb->protocol == 0x0081) -+ vhdr_len = VLAN_HLEN; -+ -+ iph = (struct iphdr *)(skb->data + vhdr_len); -+ if(iph->protocol != IPPROTO_TCP) -+ return -1; ++ priv->flags = FE_FLAG_PADDING_64B; ++ netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM | ++ NETIF_F_HW_VLAN_CTAG_TX; + -+ *iphdr = iph; -+ *tcph = skb->data + (iph->ihl << 2) + vhdr_len; -+ *hdr_flags = LRO_IPV4 | LRO_TCP; -+ -+ return 0; -+} -+#endif -+ -+static void mt7620_init_data(struct fe_soc_data *data) -+{ + if (mt7620_get_eco() >= 5) -+ data->tso = 1; ++ netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | ++ NETIF_F_IPV6_CSUM; +} + +static struct fe_soc_data mt7620_data = { @@ -4848,19 +5425,16 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c + .switch_init = mt7620_gsw_probe, + .switch_config = mt7620_gsw_config, + .port_init = mt7620_port_init, -+ .min_pkt_len = 0, -+ .reg_table = rt5350_reg_table, ++ .reg_table = mt7620_reg_table, + .pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS | MT7620A_DMA_2B_OFFSET, + .rx_dly_int = RT5350_RX_DLY_INT, + .tx_dly_int = RT5350_TX_DLY_INT, + .checksum_bit = MT7620_L4_VALID, ++ .tx_udf_bit = MT7620_TX_DMA_UDF, + .has_carrier = mt7620a_has_carrier, + .mdio_read = mt7620_mdio_read, + .mdio_write = mt7620_mdio_write, + .mdio_adjust_link = mt7620_mdio_link_adjust, -+#ifdef CONFIG_INET_LRO -+ .get_skb_header = mt7620_get_skb_header, -+#endif +}; + +const struct of_device_id of_fe_match[] = { @@ -4872,8 +5446,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_mt7620.c Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt2880.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt2880.c 2014-10-28 10:43:11.894131220 +0100 -@@ -0,0 +1,52 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt2880.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,81 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -4901,17 +5475,46 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt2880.c +#define SYSC_REG_RESET_CTRL 0x034 +#define RT2880_RESET_FE BIT(18) + ++static void rt2880_init_data(struct fe_soc_data *data, ++ struct net_device *netdev) ++{ ++ struct fe_priv *priv = netdev_priv(netdev); ++ ++ priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_PADDING_BUG | ++ FE_FLAG_JUMBO_FRAME; ++ netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_TX; ++ /* maybe have hardware bug. */ ++ //netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; ++} ++ +void rt2880_fe_reset(void) +{ + rt_sysc_w32(RT2880_RESET_FE, SYSC_REG_RESET_CTRL); +} + ++static int rt2880_fwd_config(struct fe_priv *priv) ++{ ++ int ret; ++ ++ ret = fe_set_clock_cycle(priv); ++ if (ret) ++ return ret; ++ ++ fe_fwd_config(priv); ++ fe_w32(FE_PSE_FQFC_CFG_INIT, FE_PSE_FQ_CFG); ++ fe_csum_config(priv); ++ ++ return ret; ++} ++ +struct fe_soc_data rt2880_data = { + .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, ++ .init_data = rt2880_init_data, + .reset_fe = rt2880_fe_reset, -+ .min_pkt_len = 64, -+ .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS, ++ .fwd_config = rt2880_fwd_config, ++ .pdma_glo_cfg = FE_PDMA_SIZE_8DWORDS, + .checksum_bit = RX_DMA_L4VALID, ++ .tx_udf_bit = TX_DMA_UDF, + .rx_dly_int = FE_RX_DLY_INT, + .tx_dly_int = FE_TX_DLY_INT, + .mdio_read = rt2880_mdio_read, @@ -4929,8 +5532,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt2880.c Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c 2014-10-28 10:43:11.894131220 +0100 -@@ -0,0 +1,113 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,161 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -4951,8 +5554,10 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c +#include <linux/module.h> + +#include <asm/mach-ralink/ralink_regs.h> ++#include <asm/mach-ralink/rt305x.h> + +#include "ralink_soc_eth.h" ++#include "mdio_rt2880.h" + +#define RT305X_RESET_FE BIT(21) +#define RT305X_RESET_ESW BIT(23) @@ -4973,12 +5578,46 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c + [FE_REG_FE_DMA_VID_BASE] = 0, +}; + ++static void rt305x_init_data(struct fe_soc_data *data, ++ struct net_device *netdev) ++{ ++ struct fe_priv *priv = netdev_priv(netdev); ++ ++ priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_PADDING_BUG; ++ netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | ++ NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX; ++} ++ ++static int rt3050_fwd_config(struct fe_priv *priv) ++{ ++ int ret; ++ ++ if (soc_is_rt3052()) { ++ ret = fe_set_clock_cycle(priv); ++ if (ret) ++ return ret; ++ } ++ ++ fe_fwd_config(priv); ++ if (!soc_is_rt3352()) ++ fe_w32(FE_PSE_FQFC_CFG_INIT, FE_PSE_FQ_CFG); ++ fe_csum_config(priv); ++ ++ return 0; ++} ++ +static void rt305x_fe_reset(void) +{ + rt_sysc_w32(RT305X_RESET_FE, SYSC_REG_RESET_CTRL); + rt_sysc_w32(0, SYSC_REG_RESET_CTRL); +} + ++static void rt5350_init_data(struct fe_soc_data *data, ++ struct net_device *netdev) ++{ ++ netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM; ++} ++ +static void rt5350_set_mac(struct fe_priv *priv, unsigned char *mac) +{ + unsigned long flags; @@ -4990,22 +5629,30 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c + spin_unlock_irqrestore(&priv->page_lock, flags); +} + -+static void rt5350_fwd_config(struct fe_priv *priv) ++static void rt5350_rxcsum_config(bool enable) +{ -+ unsigned long sysclk = priv->sysclk; ++ if (enable) ++ fe_w32(fe_r32(RT5350_SDM_CFG) | (RT5350_SDM_ICS_EN | ++ RT5350_SDM_TCS_EN | RT5350_SDM_UCS_EN), ++ RT5350_SDM_CFG); ++ else ++ fe_w32(fe_r32(RT5350_SDM_CFG) & ~(RT5350_SDM_ICS_EN | ++ RT5350_SDM_TCS_EN | RT5350_SDM_UCS_EN), ++ RT5350_SDM_CFG); ++} + -+ if (sysclk) { -+ sysclk /= FE_US_CYC_CNT_DIVISOR; -+ sysclk <<= FE_US_CYC_CNT_SHIFT; ++static int rt5350_fwd_config(struct fe_priv *priv) ++{ ++ struct net_device *dev = priv_netdev(priv); + -+ fe_w32((fe_r32(FE_FE_GLO_CFG) & -+ ~(FE_US_CYC_CNT_MASK << FE_US_CYC_CNT_SHIFT)) | sysclk, -+ FE_FE_GLO_CFG); -+ } ++ rt5350_rxcsum_config((dev->features & NETIF_F_RXCSUM)); + -+ fe_w32(fe_r32(RT5350_SDM_CFG) & ~0xffff, RT5350_SDM_CFG); -+ fe_w32(fe_r32(RT5350_SDM_CFG) | RT5350_SDM_ICS_EN | RT5350_SDM_TCS_EN | RT5350_SDM_UCS_EN, -+ RT5350_SDM_CFG); ++ return 0; ++} ++ ++static void rt5350_tx_dma(struct fe_priv *priv, int idx, struct sk_buff *skb) ++{ ++ priv->tx_dma[idx].txd4 = 0; +} + +static void rt5350_fe_reset(void) @@ -5016,23 +5663,27 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c + +static struct fe_soc_data rt3050_data = { + .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, ++ .init_data = rt305x_init_data, + .reset_fe = rt305x_fe_reset, -+ .min_pkt_len = 64, -+ .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS, ++ .fwd_config = rt3050_fwd_config, ++ .pdma_glo_cfg = FE_PDMA_SIZE_8DWORDS, + .checksum_bit = RX_DMA_L4VALID, ++ .tx_udf_bit = TX_DMA_UDF, + .rx_dly_int = FE_RX_DLY_INT, + .tx_dly_int = FE_TX_DLY_INT, +}; + +static struct fe_soc_data rt5350_data = { + .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, ++ .init_data = rt5350_init_data, + .reg_table = rt5350_reg_table, + .reset_fe = rt5350_fe_reset, + .set_mac = rt5350_set_mac, + .fwd_config = rt5350_fwd_config, -+ .min_pkt_len = 64, -+ .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS, ++ .tx_dma = rt5350_tx_dma, ++ .pdma_glo_cfg = FE_PDMA_SIZE_8DWORDS, + .checksum_bit = RX_DMA_L4VALID, ++ .tx_udf_bit = TX_DMA_UDF, + .rx_dly_int = RT5350_RX_DLY_INT, + .tx_dly_int = RT5350_TX_DLY_INT, +}; @@ -5047,8 +5698,8 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt305x.c Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt3883.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt3883.c 2014-10-28 10:43:11.894131220 +0100 -@@ -0,0 +1,60 @@ ++++ linux-3.14.18/drivers/net/ethernet/ralink/soc_rt3883.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,88 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by @@ -5088,14 +5739,42 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt3883.c + rt_sysc_w32(t, RT3883_SYSC_REG_RSTCTRL); +} + ++static int rt3883_fwd_config(struct fe_priv *priv) ++{ ++ int ret; ++ ++ ret = fe_set_clock_cycle(priv); ++ if (ret) ++ return ret; ++ ++ fe_fwd_config(priv); ++ fe_w32(FE_PSE_FQFC_CFG_256Q, FE_PSE_FQ_CFG); ++ fe_csum_config(priv); ++ ++ return ret; ++} ++ ++static void rt3883_init_data(struct fe_soc_data *data, ++ struct net_device *netdev) ++{ ++ struct fe_priv *priv = netdev_priv(netdev); ++ ++ priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_PADDING_BUG | ++ FE_FLAG_JUMBO_FRAME; ++ netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | ++ NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX; ++} ++ +static struct fe_soc_data rt3883_data = { + .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, ++ .init_data = rt3883_init_data, + .reset_fe = rt3883_fe_reset, -+ .min_pkt_len = 64, -+ .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS, ++ .fwd_config = rt3883_fwd_config, ++ .pdma_glo_cfg = FE_PDMA_SIZE_8DWORDS, + .rx_dly_int = FE_RX_DLY_INT, + .tx_dly_int = FE_TX_DLY_INT, + .checksum_bit = RX_DMA_L4VALID, ++ .tx_udf_bit = TX_DMA_UDF, + .mdio_read = rt2880_mdio_read, + .mdio_write = rt2880_mdio_write, + .mdio_adjust_link = rt2880_mdio_link_adjust, @@ -5109,3 +5788,300 @@ Index: linux-3.14.18/drivers/net/ethernet/ralink/soc_rt3883.c + +MODULE_DEVICE_TABLE(of, of_fe_match); + +Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_ethtool.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_ethtool.c 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,262 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; version 2 of the License ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * Copyright (C) 2009-2013 Michael Lee <igvtee@gmail.com> ++ */ ++ ++#include "ralink_soc_eth.h" ++ ++static const char fe_gdma_str[][ETH_GSTRING_LEN] = { ++#define _FE(x...) # x, ++FE_STAT_REG_DECLARE ++#undef _FE ++}; ++ ++static int fe_get_settings(struct net_device *dev, ++ struct ethtool_cmd *cmd) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ int err; ++ ++ if (!priv->phy_dev) ++ goto out_gset; ++ ++ if (priv->phy_flags == FE_PHY_FLAG_ATTACH) { ++ err = phy_read_status(priv->phy_dev); ++ if (err) ++ goto out_gset; ++ } ++ ++ return phy_ethtool_gset(priv->phy_dev, cmd); ++ ++out_gset: ++ return -ENODEV; ++} ++ ++static int fe_set_settings(struct net_device *dev, ++ struct ethtool_cmd *cmd) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ ++ if (!priv->phy_dev) ++ goto out_sset; ++ ++ if (cmd->phy_address != priv->phy_dev->addr) { ++ if (priv->phy->phy_node[cmd->phy_address]) { ++ priv->phy_dev = priv->phy->phy[cmd->phy_address]; ++ priv->phy_flags = FE_PHY_FLAG_PORT; ++ } else if (priv->mii_bus && ++ priv->mii_bus->phy_map[cmd->phy_address]) { ++ priv->phy_dev = priv->mii_bus->phy_map[cmd->phy_address]; ++ priv->phy_flags = FE_PHY_FLAG_ATTACH; ++ } else ++ goto out_sset; ++ } ++ ++ return phy_ethtool_sset(priv->phy_dev, cmd); ++ ++out_sset: ++ return -ENODEV; ++} ++ ++static void fe_get_drvinfo (struct net_device *dev, ++ struct ethtool_drvinfo *info) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ struct fe_soc_data *soc = priv->soc; ++ ++ strlcpy(info->driver, priv->device->driver->name, sizeof(info->driver)); ++ strlcpy(info->version, FE_DRV_VERSION, sizeof(info->version)); ++ strlcpy(info->bus_info, dev_name(priv->device), sizeof(info->bus_info)); ++ ++ if (soc->reg_table[FE_REG_FE_COUNTER_BASE]) ++ info->n_stats = ARRAY_SIZE(fe_gdma_str); ++} ++ ++static u32 fe_get_msglevel(struct net_device *dev) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ ++ return priv->msg_enable; ++} ++ ++static void fe_set_msglevel(struct net_device *dev, u32 value) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ ++ priv->msg_enable = value; ++} ++ ++static int fe_nway_reset(struct net_device *dev) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ ++ if (!priv->phy_dev) ++ goto out_nway_reset; ++ ++ return genphy_restart_aneg(priv->phy_dev); ++ ++out_nway_reset: ++ return -EOPNOTSUPP; ++} ++ ++static u32 fe_get_link(struct net_device *dev) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ int err; ++ ++ if (!priv->phy_dev) ++ goto out_get_link; ++ ++ if (priv->phy_flags == FE_PHY_FLAG_ATTACH) { ++ err = genphy_update_link(priv->phy_dev); ++ if (err) ++ goto out_get_link; ++ } ++ ++ return priv->phy_dev->link; ++ ++out_get_link: ++ return ethtool_op_get_link(dev); ++} ++ ++static void fe_get_ringparam(struct net_device *dev, ++ struct ethtool_ringparam *ring) ++{ ++ ring->rx_max_pending = MAX_DMA_DESC; ++ ring->tx_max_pending = MAX_DMA_DESC; ++ ring->rx_pending = NUM_DMA_DESC; ++ ring->tx_pending = NUM_DMA_DESC; ++} ++ ++static int fe_get_coalesce(struct net_device *dev, ++ struct ethtool_coalesce *coal) ++{ ++ u32 delay_cfg = fe_reg_r32(FE_REG_DLY_INT_CFG); ++ ++ coal->rx_coalesce_usecs = (delay_cfg & 0xff) * FE_DELAY_TIME; ++ coal->rx_max_coalesced_frames = ((delay_cfg >> 8) & 0x7f); ++ coal->use_adaptive_rx_coalesce = (delay_cfg >> 15) & 0x1; ++ ++ coal->tx_coalesce_usecs = ((delay_cfg >> 16 )& 0xff) * FE_DELAY_TIME; ++ coal->tx_max_coalesced_frames = ((delay_cfg >> 24) & 0x7f); ++ coal->use_adaptive_tx_coalesce = (delay_cfg >> 31) & 0x1; ++ ++ return 0; ++} ++ ++static int fe_set_coalesce(struct net_device *dev, ++ struct ethtool_coalesce *coal) ++{ ++ u32 delay_cfg; ++ u32 rx_usecs, tx_usecs; ++ u32 rx_frames, tx_frames; ++ ++ if (!coal->use_adaptive_rx_coalesce || !coal->use_adaptive_tx_coalesce) ++ return -EINVAL; ++ ++ rx_usecs = DIV_ROUND_UP(coal->rx_coalesce_usecs, FE_DELAY_TIME); ++ rx_frames = coal->rx_max_coalesced_frames; ++ tx_usecs = DIV_ROUND_UP(coal->tx_coalesce_usecs, FE_DELAY_TIME); ++ tx_frames = coal->tx_max_coalesced_frames; ++ ++ if (((tx_usecs == 0) && (tx_frames ==0)) || ++ ((rx_usecs == 0) && (rx_frames ==0))) ++ return -EINVAL; ++ ++ if (rx_usecs > 0xff) rx_usecs = 0xff; ++ if (rx_frames > 0x7f) rx_frames = 0x7f; ++ if (tx_usecs > 0xff) tx_usecs = 0xff; ++ if (tx_frames > 0x7f) tx_frames = 0x7f; ++ ++ delay_cfg = ((((FE_DELAY_EN_INT | tx_frames) << 8) | tx_usecs) << 16) | ++ (((FE_DELAY_EN_INT | rx_frames) << 8) | rx_usecs); ++ ++ fe_reg_w32(delay_cfg, FE_REG_DLY_INT_CFG); ++ ++ return 0; ++} ++ ++static void fe_get_strings(struct net_device *dev, u32 stringset, u8 *data) ++{ ++ switch (stringset) { ++ case ETH_SS_STATS: ++ memcpy(data, *fe_gdma_str, sizeof(fe_gdma_str)); ++ break; ++ } ++} ++ ++static int fe_get_sset_count(struct net_device *dev, int sset) ++{ ++ switch (sset) { ++ case ETH_SS_STATS: ++ return ARRAY_SIZE(fe_gdma_str); ++ default: ++ return -EOPNOTSUPP; ++ } ++} ++ ++static void fe_get_ethtool_stats(struct net_device *dev, ++ struct ethtool_stats *stats, u64 *data) ++{ ++ struct fe_priv *priv = netdev_priv(dev); ++ struct fe_hw_stats *hwstats = priv->hw_stats; ++ u64 *data_src, *data_dst; ++ unsigned int start; ++ int i; ++ ++ if (netif_running(dev) && netif_device_present(dev)) { ++ if (spin_trylock(&hwstats->stats_lock)) { ++ fe_stats_update(priv); ++ spin_unlock(&hwstats->stats_lock); ++ } ++ } ++ ++ do { ++ data_src = &hwstats->tx_bytes; ++ data_dst = data; ++ start = u64_stats_fetch_begin_bh(&hwstats->syncp); ++ ++ for (i = 0; i < ARRAY_SIZE(fe_gdma_str); i++) ++ *data_dst++ = *data_src++; ++ ++ } while (u64_stats_fetch_retry_bh(&hwstats->syncp, start)); ++} ++ ++static struct ethtool_ops fe_ethtool_ops = { ++ .get_settings = fe_get_settings, ++ .set_settings = fe_set_settings, ++ .get_drvinfo = fe_get_drvinfo, ++ .get_msglevel = fe_get_msglevel, ++ .set_msglevel = fe_set_msglevel, ++ .nway_reset = fe_nway_reset, ++ .get_link = fe_get_link, ++ .get_ringparam = fe_get_ringparam, ++ .get_coalesce = fe_get_coalesce, ++ .set_coalesce = fe_set_coalesce, ++}; ++ ++void fe_set_ethtool_ops(struct net_device *netdev) ++{ ++ struct fe_priv *priv = netdev_priv(netdev); ++ struct fe_soc_data *soc = priv->soc; ++ ++ if (soc->reg_table[FE_REG_FE_COUNTER_BASE]) { ++ fe_ethtool_ops.get_strings = fe_get_strings; ++ fe_ethtool_ops.get_sset_count = fe_get_sset_count; ++ fe_ethtool_ops.get_ethtool_stats = fe_get_ethtool_stats; ++ } ++ ++ SET_ETHTOOL_OPS(netdev, &fe_ethtool_ops); ++} +Index: linux-3.14.18/drivers/net/ethernet/ralink/ralink_ethtool.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-3.14.18/drivers/net/ethernet/ralink/ralink_ethtool.h 2014-10-29 20:25:55.433357519 +0100 +@@ -0,0 +1,25 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; version 2 of the License ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * Copyright (C) 2009-2013 Michael Lee <igvtee@gmail.com> ++ */ ++ ++#ifndef FE_ETHTOOL_H ++#define FE_ETHTOOL_H ++ ++#include <linux/ethtool.h> ++ ++void fe_set_ethtool_ops(struct net_device *netdev); ++ ++#endif /* FE_ETHTOOL_H */ |