diff options
Diffstat (limited to 'target/linux/gemini/patches-4.1/120-net-add-gemini-gmac-driver.patch')
| -rw-r--r-- | target/linux/gemini/patches-4.1/120-net-add-gemini-gmac-driver.patch | 3953 |
1 files changed, 3953 insertions, 0 deletions
diff --git a/target/linux/gemini/patches-4.1/120-net-add-gemini-gmac-driver.patch b/target/linux/gemini/patches-4.1/120-net-add-gemini-gmac-driver.patch new file mode 100644 index 0000000000..fd5045cae8 --- /dev/null +++ b/target/linux/gemini/patches-4.1/120-net-add-gemini-gmac-driver.patch @@ -0,0 +1,3953 @@ +--- /dev/null ++++ b/arch/arm/mach-gemini/include/mach/gmac.h +@@ -0,0 +1,21 @@ ++/* ++ * Gemini GMAC specific defines ++ * ++ * Copyright (C) 2008, Paulius Zaleckas <paulius.zaleckas@gmail.com> ++ * ++ * 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; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++#ifndef __NET_GEMINI_PLATFORM_H__ ++#define __NET_GEMINI_PLATFORM_H__ ++ ++#include <linux/phy.h> ++ ++struct gemini_gmac_platform_data { ++ char *bus_id[2]; /* NULL means that this port is not used */ ++ phy_interface_t interface[2]; ++}; ++ ++#endif /* __NET_GEMINI_PLATFORM_H__ */ +--- a/arch/arm/mach-gemini/common.h ++++ b/arch/arm/mach-gemini/common.h +@@ -15,6 +15,7 @@ + #include <linux/reboot.h> + + struct mtd_partition; ++struct gemini_gmac_platform_data; + + extern void gemini_map_io(void); + extern void gemini_init_irq(void); +@@ -28,6 +29,7 @@ extern int platform_register_pflash(unsi + struct mtd_partition *parts, + unsigned int nr_parts); + extern int platform_register_watchdog(void); ++extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata); + + extern void gemini_restart(enum reboot_mode mode, const char *cmd); + +--- a/arch/arm/mach-gemini/devices.c ++++ b/arch/arm/mach-gemini/devices.c +@@ -17,6 +17,7 @@ + #include <mach/irqs.h> + #include <mach/hardware.h> + #include <mach/global_reg.h> ++#include <mach/gmac.h> + #include "common.h" + + static struct plat_serial8250_port serial_platform_data[] = { +@@ -134,3 +135,56 @@ int __init platform_register_watchdog(vo + { + return platform_device_register(&wdt_device); + } ++ ++static struct resource gmac_resources[] = { ++ { ++ .start = GEMINI_TOE_BASE, ++ .end = GEMINI_TOE_BASE + 0xffff, ++ .flags = IORESOURCE_MEM, ++ }, ++ { ++ .start = IRQ_GMAC0, ++ .end = IRQ_GMAC0, ++ .flags = IORESOURCE_IRQ, ++ }, ++ { ++ .start = IRQ_GMAC1, ++ .end = IRQ_GMAC1, ++ .flags = IORESOURCE_IRQ, ++ }, ++}; ++ ++static u64 gmac_dmamask = 0xffffffffUL; ++ ++static struct platform_device ethernet_device = { ++ .name = "gmac-gemini", ++ .id = 0, ++ .dev = { ++ .dma_mask = &gmac_dmamask, ++ .coherent_dma_mask = 0xffffffff, ++ }, ++ .num_resources = ARRAY_SIZE(gmac_resources), ++ .resource = gmac_resources, ++}; ++ ++int platform_register_ethernet(struct gemini_gmac_platform_data *pdata) ++{ ++ unsigned int reg; ++ ++ reg = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_MISC_CTRL)); ++ ++ reg &= ~(GMAC_GMII | GMAC_1_ENABLE); ++ ++ if (pdata->bus_id[1]) ++ reg |= GMAC_1_ENABLE; ++ else if (pdata->interface[0] == PHY_INTERFACE_MODE_GMII) ++ reg |= GMAC_GMII; ++ ++ writel(reg, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_MISC_CTRL)); ++ ++ ethernet_device.dev.platform_data = pdata; ++ ++ return platform_device_register(ðernet_device); ++} +--- a/drivers/net/ethernet/Kconfig ++++ b/drivers/net/ethernet/Kconfig +@@ -70,6 +70,7 @@ source "drivers/net/ethernet/neterion/Kc + source "drivers/net/ethernet/faraday/Kconfig" + source "drivers/net/ethernet/freescale/Kconfig" + source "drivers/net/ethernet/fujitsu/Kconfig" ++source "drivers/net/ethernet/gemini/Kconfig" + source "drivers/net/ethernet/hisilicon/Kconfig" + source "drivers/net/ethernet/hp/Kconfig" + source "drivers/net/ethernet/ibm/Kconfig" +--- a/drivers/net/ethernet/Makefile ++++ b/drivers/net/ethernet/Makefile +@@ -33,6 +33,7 @@ obj-$(CONFIG_NET_VENDOR_EXAR) += neterio + obj-$(CONFIG_NET_VENDOR_FARADAY) += faraday/ + obj-$(CONFIG_NET_VENDOR_FREESCALE) += freescale/ + obj-$(CONFIG_NET_VENDOR_FUJITSU) += fujitsu/ ++obj-$(CONFIG_NET_VENDOR_GEMINI) += gemini/ + obj-$(CONFIG_NET_VENDOR_HISILICON) += hisilicon/ + obj-$(CONFIG_NET_VENDOR_HP) += hp/ + obj-$(CONFIG_NET_VENDOR_IBM) += ibm/ +--- /dev/null ++++ b/drivers/net/ethernet/gemini/Kconfig +@@ -0,0 +1,31 @@ ++# ++# Gemini device configuration ++# ++ ++config NET_VENDOR_GEMINI ++ bool "Cortina Gemini devices" ++ default y ++ depends on ARCH_GEMINI ++ ---help--- ++ If you have a network (Ethernet) card belonging to this class, say Y ++ and read the Ethernet-HOWTO, available from ++ <http://www.tldp.org/docs.html#howto>. ++ ++ Note that the answer to this question doesn't directly affect the ++ kernel: saying N will just cause the configurator to skip all ++ the questions about D-Link devices. If you say Y, you will be asked for ++ your specific card in the following questions. ++ ++if NET_VENDOR_GEMINI ++ ++config GEMINI_SL351X ++ tristate "StorLink SL351x Gigabit Ethernet support" ++ depends on ARCH_GEMINI ++ select PHYLIB ++ select MDIO_BITBANG ++ select MDIO_GPIO ++ select CRC32 ++ ---help--- ++ This driver supports StorLink SL351x (Gemini) dual Gigabit Ethernet. ++ ++endif # NET_VENDOR_GEMINI +--- /dev/null ++++ b/drivers/net/ethernet/gemini/Makefile +@@ -0,0 +1,5 @@ ++# ++# Makefile for the Cortina Gemini network device drivers. ++# ++ ++obj-$(CONFIG_GEMINI_SL351X) += sl351x.o +--- /dev/null ++++ b/drivers/net/ethernet/gemini/sl351x.c +@@ -0,0 +1,2340 @@ ++/* ++ * Ethernet device driver for Gemini SoC (SL351x GMAC). ++ * ++ * Copyright (C) 2011, Tobias Waldvogel <tobias.waldvogel@gmail.com> ++ * ++ * Based on work by Michał Mirosław <mirq-linux@rere.qmqm.pl> and ++ * Paulius Zaleckas <paulius.zaleckas@gmail.com> and ++ * Giuseppe De Robertis <Giuseppe.DeRobertis@ba.infn.it> and ++ * GPLd spaghetti code from Raidsonic and other Gemini-based NAS vendors. ++ * ++ * 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; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++ ++#include <linux/spinlock.h> ++#include <linux/slab.h> ++#include <linux/dma-mapping.h> ++#include <linux/cache.h> ++#include <linux/interrupt.h> ++ ++#include <linux/platform_device.h> ++#include <linux/etherdevice.h> ++#include <linux/if_vlan.h> ++#include <linux/skbuff.h> ++#include <linux/phy.h> ++#include <linux/crc32.h> ++#include <linux/ethtool.h> ++#include <linux/tcp.h> ++#include <linux/u64_stats_sync.h> ++ ++#include <linux/in.h> ++#include <linux/ip.h> ++#include <linux/ipv6.h> ++ ++#include <mach/hardware.h> ++#include <mach/global_reg.h> ++ ++#include <mach/gmac.h> ++#include "sl351x_hw.h" ++ ++#define DRV_NAME "gmac-gemini" ++#define DRV_VERSION "1.0" ++ ++#define HSIZE_8 0b00 ++#define HSIZE_16 0b01 ++#define HSIZE_32 0b10 ++ ++#define HBURST_SINGLE 0b00 ++#define HBURST_INCR 0b01 ++#define HBURST_INCR4 0b10 ++#define HBURST_INCR8 0b11 ++ ++#define HPROT_DATA_CACHE BIT(0) ++#define HPROT_PRIVILIGED BIT(1) ++#define HPROT_BUFFERABLE BIT(2) ++#define HPROT_CACHABLE BIT(3) ++ ++#define DEFAULT_RX_COALESCE_NSECS 0 ++#define DEFAULT_GMAC_RXQ_ORDER 9 ++#define DEFAULT_GMAC_TXQ_ORDER 8 ++#define DEFAULT_RX_BUF_ORDER 11 ++#define DEFAULT_NAPI_WEIGHT 64 ++#define TX_MAX_FRAGS 16 ++#define TX_QUEUE_NUM 1 /* max: 6 */ ++#define RX_MAX_ALLOC_ORDER 2 ++ ++#define GMAC0_IRQ0_2 (GMAC0_TXDERR_INT_BIT|GMAC0_TXPERR_INT_BIT| \ ++ GMAC0_RXDERR_INT_BIT|GMAC0_RXPERR_INT_BIT) ++#define GMAC0_IRQ0_TXQ0_INTS (GMAC0_SWTQ00_EOF_INT_BIT| \ ++ GMAC0_SWTQ00_FIN_INT_BIT) ++#define GMAC0_IRQ4_8 (GMAC0_MIB_INT_BIT|GMAC0_RX_OVERRUN_INT_BIT) ++ ++#define GMAC_OFFLOAD_FEATURES (NETIF_F_SG | NETIF_F_IP_CSUM | \ ++ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | \ ++ NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6) ++ ++MODULE_AUTHOR("Tobias Waldvogel"); ++MODULE_DESCRIPTION("StorLink SL351x (Gemini) ethernet driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" DRV_NAME); ++ ++struct toe_private { ++ void __iomem *iomem; ++ spinlock_t irq_lock; ++ ++ struct net_device *netdev[2]; ++ __le32 mac_addr[2][3]; ++ ++ struct device *dev; ++ int irq; ++ ++ unsigned int freeq_order; ++ unsigned int freeq_frag_order; ++ GMAC_RXDESC_T *freeq_ring; ++ dma_addr_t freeq_dma_base; ++ struct page **freeq_page_tab; ++ spinlock_t freeq_lock; ++}; ++ ++struct gmac_txq { ++ GMAC_TXDESC_T *ring; ++ struct sk_buff **skb; ++ unsigned int cptr; ++ unsigned int noirq_packets; ++}; ++ ++struct gmac_private { ++ unsigned int num; ++ struct toe_private *toe; ++ void __iomem *ctl_iomem; ++ void __iomem *dma_iomem; ++ ++ void __iomem *rxq_rwptr; ++ GMAC_RXDESC_T *rxq_ring; ++ unsigned int rxq_order; ++ ++ struct napi_struct napi; ++ struct hrtimer rx_coalesce_timer; ++ unsigned int rx_coalesce_nsecs; ++ unsigned int freeq_refill; ++ struct gmac_txq txq[TX_QUEUE_NUM]; ++ unsigned int txq_order; ++ unsigned int irq_every_tx_packets; ++ ++ dma_addr_t rxq_dma_base; ++ dma_addr_t txq_dma_base; ++ ++ unsigned int msg_enable; ++ spinlock_t config_lock; ++ ++ struct u64_stats_sync tx_stats_syncp; ++ struct u64_stats_sync rx_stats_syncp; ++ struct u64_stats_sync ir_stats_syncp; ++ ++ struct rtnl_link_stats64 stats; ++ u64 hw_stats[RX_STATS_NUM]; ++ u64 rx_stats[RX_STATUS_NUM]; ++ u64 rx_csum_stats[RX_CHKSUM_NUM]; ++ u64 rx_napi_exits; ++ u64 tx_frag_stats[TX_MAX_FRAGS]; ++ u64 tx_frags_linearized; ++ u64 tx_hw_csummed; ++}; ++ ++#define GMAC_STATS_NUM ( \ ++ RX_STATS_NUM + RX_STATUS_NUM + RX_CHKSUM_NUM + 1 + \ ++ TX_MAX_FRAGS + 2) ++ ++static const char gmac_stats_strings[GMAC_STATS_NUM][ETH_GSTRING_LEN] = { ++ "GMAC_IN_DISCARDS", ++ "GMAC_IN_ERRORS", ++ "GMAC_IN_MCAST", ++ "GMAC_IN_BCAST", ++ "GMAC_IN_MAC1", ++ "GMAC_IN_MAC2", ++ "RX_STATUS_GOOD_FRAME", ++ "RX_STATUS_TOO_LONG_GOOD_CRC", ++ "RX_STATUS_RUNT_FRAME", ++ "RX_STATUS_SFD_NOT_FOUND", ++ "RX_STATUS_CRC_ERROR", ++ "RX_STATUS_TOO_LONG_BAD_CRC", ++ "RX_STATUS_ALIGNMENT_ERROR", ++ "RX_STATUS_TOO_LONG_BAD_ALIGN", ++ "RX_STATUS_RX_ERR", ++ "RX_STATUS_DA_FILTERED", ++ "RX_STATUS_BUFFER_FULL", ++ "RX_STATUS_11", ++ "RX_STATUS_12", ++ "RX_STATUS_13", ++ "RX_STATUS_14", ++ "RX_STATUS_15", ++ "RX_CHKSUM_IP_UDP_TCP_OK", ++ "RX_CHKSUM_IP_OK_ONLY", ++ "RX_CHKSUM_NONE", ++ "RX_CHKSUM_3", ++ "RX_CHKSUM_IP_ERR_UNKNOWN", ++ "RX_CHKSUM_IP_ERR", ++ "RX_CHKSUM_TCP_UDP_ERR", ++ "RX_CHKSUM_7", ++ "RX_NAPI_EXITS", ++ "TX_FRAGS[1]", ++ "TX_FRAGS[2]", ++ "TX_FRAGS[3]", ++ "TX_FRAGS[4]", ++ "TX_FRAGS[5]", ++ "TX_FRAGS[6]", ++ "TX_FRAGS[7]", ++ "TX_FRAGS[8]", ++ "TX_FRAGS[9]", ++ "TX_FRAGS[10]", ++ "TX_FRAGS[11]", ++ "TX_FRAGS[12]", ++ "TX_FRAGS[13]", ++ "TX_FRAGS[14]", ++ "TX_FRAGS[15]", ++ "TX_FRAGS[16+]", ++ "TX_FRAGS_LINEARIZED", ++ "TX_HW_CSUMMED", ++}; ++ ++static void gmac_dump_dma_state(struct net_device *dev); ++ ++static void gmac_update_config0_reg(struct net_device *dev, u32 val, u32 vmask) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ unsigned long flags; ++ u32 reg; ++ ++ spin_lock_irqsave(&gmac->config_lock, flags); ++ ++ reg = readl(gmac->ctl_iomem + GMAC_CONFIG0); ++ reg = (reg & ~vmask) | val; ++ writel(reg, gmac->ctl_iomem + GMAC_CONFIG0); ++ ++ spin_unlock_irqrestore(&gmac->config_lock, flags); ++} ++ ++static void gmac_enable_tx_rx(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; ++ ++ spin_lock_irqsave(&gmac->config_lock, flags); ++ ++ reg = readl(config0); ++ reg &= ~CONFIG0_TX_RX_DISABLE; ++ writel(reg, config0); ++ ++ spin_unlock_irqrestore(&gmac->config_lock, flags); ++} ++ ++static void gmac_disable_tx_rx(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; ++ ++ spin_lock_irqsave(&gmac->config_lock, flags); ++ ++ reg = readl(config0); ++ reg |= CONFIG0_TX_RX_DISABLE; ++ writel(reg, config0); ++ ++ spin_unlock_irqrestore(&gmac->config_lock, flags); ++ ++ mdelay(10); /* let GMAC consume packet */ ++} ++ ++static void gmac_set_flow_control(struct net_device *dev, bool tx, bool rx) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; ++ ++ spin_lock_irqsave(&gmac->config_lock, flags); ++ ++ reg = readl(config0); ++ reg &= ~CONFIG0_FLOW_CTL; ++ if (tx) ++ reg |= CONFIG0_FLOW_TX; ++ if (rx) ++ reg |= CONFIG0_FLOW_RX; ++ writel(reg, config0); ++ ++ spin_unlock_irqrestore(&gmac->config_lock, flags); ++} ++ ++static void gmac_update_link_state(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ void __iomem *status_reg = gmac->ctl_iomem + GMAC_STATUS; ++ struct phy_device *phydev = dev->phydev; ++ GMAC_STATUS_T status, old_status; ++ int pause_tx=0, pause_rx=0; ++ ++ old_status.bits32 = status.bits32 = readl(status_reg); ++ ++ status.bits.link = phydev->link; ++ status.bits.duplex = phydev->duplex; ++ ++ switch (phydev->speed) { ++ case 1000: ++ status.bits.speed = GMAC_SPEED_1000; ++ if (phydev->interface == PHY_INTERFACE_MODE_RGMII) ++ status.bits.mii_rmii = GMAC_PHY_RGMII_1000; ++ break; ++ case 100: ++ status.bits.speed = GMAC_SPEED_100; ++ if (phydev->interface == PHY_INTERFACE_MODE_RGMII) ++ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10; ++ break; ++ case 10: ++ status.bits.speed = GMAC_SPEED_10; ++ if (phydev->interface == PHY_INTERFACE_MODE_RGMII) ++ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10; ++ break; ++ default: ++ netdev_warn(dev, "Not supported PHY speed (%d)\n", ++ phydev->speed); ++ } ++ ++ if (phydev->duplex == DUPLEX_FULL) { ++ u16 lcladv = phy_read(phydev, MII_ADVERTISE); ++ u16 rmtadv = phy_read(phydev, MII_LPA); ++ u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); ++ ++ if (cap & FLOW_CTRL_RX) ++ pause_rx=1; ++ if (cap & FLOW_CTRL_TX) ++ pause_tx=1; ++ } ++ ++ gmac_set_flow_control(dev, pause_tx, pause_rx); ++ ++ if (old_status.bits32 == status.bits32) ++ return; ++ ++ if (netif_msg_link(gmac)) { ++ phy_print_status(phydev); ++ netdev_info(dev, "link flow control: %s\n", ++ phydev->pause ++ ? (phydev->asym_pause ? "tx" : "both") ++ : (phydev->asym_pause ? "rx" : "none") ++ ); ++ } ++ ++ gmac_disable_tx_rx(dev); ++ writel(status.bits32, status_reg); ++ gmac_enable_tx_rx(dev); ++} ++ ++static int gmac_setup_phy(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ struct gemini_gmac_platform_data *pdata = toe->dev->platform_data; ++ GMAC_STATUS_T status = { .bits32 = 0 }; ++ int num = dev->dev_id; ++ ++ dev->phydev = phy_connect(dev, pdata->bus_id[num], ++ &gmac_update_link_state, pdata->interface[num]); ++ ++ if (IS_ERR(dev->phydev)) { ++ int err = PTR_ERR(dev->phydev); ++ dev->phydev = NULL; ++ return err; ++ } ++ ++ dev->phydev->supported &= PHY_GBIT_FEATURES; ++ dev->phydev->supported |= SUPPORTED_Asym_Pause | SUPPORTED_Pause; ++ dev->phydev->advertising = dev->phydev->supported; ++ ++ /* set PHY interface type */ ++ switch (dev->phydev->interface) { ++ case PHY_INTERFACE_MODE_MII: ++ status.bits.mii_rmii = GMAC_PHY_MII; ++ break; ++ case PHY_INTERFACE_MODE_GMII: ++ status.bits.mii_rmii = GMAC_PHY_GMII; ++ break; ++ case PHY_INTERFACE_MODE_RGMII: ++ status.bits.mii_rmii = GMAC_PHY_RGMII_100_10; ++ break; ++ default: ++ netdev_err(dev, "Unsupported MII interface\n"); ++ phy_disconnect(dev->phydev); ++ dev->phydev = NULL; ++ return -EINVAL; ++ } ++ writel(status.bits32, gmac->ctl_iomem + GMAC_STATUS); ++ ++ return 0; ++} ++ ++static int gmac_pick_rx_max_len(int max_l3_len) ++{ ++ /* index = CONFIG_MAXLEN_XXX values */ ++ static const int max_len[8] = { ++ 1536, 1518, 1522, 1542, ++ 9212, 10236, 1518, 1518 ++ }; ++ int i, n = 5; ++ ++ max_l3_len += ETH_HLEN + VLAN_HLEN; ++ ++ if (max_l3_len > max_len[n]) ++ return -1; ++ ++ for (i = 0; i < 5; ++i) { ++ if (max_len[i] >= max_l3_len && max_len[i] < max_len[n]) ++ n = i; ++ } ++ ++ return n; ++} ++ ++static int gmac_init(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ u32 val; ++ ++ GMAC_CONFIG0_T config0 = { .bits = { ++ .dis_tx = 1, ++ .dis_rx = 1, ++ .ipv4_rx_chksum = 1, ++ .ipv6_rx_chksum = 1, ++ .rx_err_detect = 1, ++ .rgmm_edge = 1, ++ .port0_chk_hwq = 1, ++ .port1_chk_hwq = 1, ++ .port0_chk_toeq = 1, ++ .port1_chk_toeq = 1, ++ .port0_chk_classq = 1, ++ .port1_chk_classq = 1, ++ } }; ++ GMAC_AHB_WEIGHT_T ahb_weight = { .bits = { ++ .rx_weight = 1, ++ .tx_weight = 1, ++ .hash_weight = 1, ++ .pre_req = 0x1f, ++ .tqDV_threshold = 0, ++ } }; ++ GMAC_TX_WCR0_T hw_weigh = { .bits = { ++ .hw_tq3 = 1, ++ .hw_tq2 = 1, ++ .hw_tq1 = 1, ++ .hw_tq0 = 1, ++ } }; ++ GMAC_TX_WCR1_T sw_weigh = { .bits = { ++ .sw_tq5 = 1, ++ .sw_tq4 = 1, ++ .sw_tq3 = 1, ++ .sw_tq2 = 1, ++ .sw_tq1 = 1, ++ .sw_tq0 = 1, ++ } }; ++ GMAC_CONFIG1_T config1 = { .bits = { ++ .set_threshold = 16, ++ .rel_threshold = 24, ++ } }; ++ GMAC_CONFIG2_T config2 = { .bits = { ++ .set_threshold = 16, ++ .rel_threshold = 32, ++ } }; ++ GMAC_CONFIG3_T config3 = { .bits = { ++ .set_threshold = 0, ++ .rel_threshold = 0, ++ } }; ++ ++ config0.bits.max_len = gmac_pick_rx_max_len(dev->mtu); ++ ++ val = readl(gmac->ctl_iomem + GMAC_CONFIG0); ++ config0.bits.reserved = ((GMAC_CONFIG0_T)val).bits.reserved; ++ writel(config0.bits32, gmac->ctl_iomem + GMAC_CONFIG0); ++ writel(config1.bits32, gmac->ctl_iomem + GMAC_CONFIG1); ++ writel(config2.bits32, gmac->ctl_iomem + GMAC_CONFIG2); ++ writel(config3.bits32, gmac->ctl_iomem + GMAC_CONFIG3); ++ ++ val = readl(gmac->dma_iomem + GMAC_AHB_WEIGHT_REG); ++ writel(ahb_weight.bits32, gmac->dma_iomem + GMAC_AHB_WEIGHT_REG); ++ ++ writel(hw_weigh.bits32, ++ gmac->dma_iomem + GMAC_TX_WEIGHTING_CTRL_0_REG); ++ writel(sw_weigh.bits32, ++ gmac->dma_iomem + GMAC_TX_WEIGHTING_CTRL_1_REG); ++ ++ gmac->rxq_order = DEFAULT_GMAC_RXQ_ORDER; ++ gmac->txq_order = DEFAULT_GMAC_TXQ_ORDER; ++ gmac->rx_coalesce_nsecs = DEFAULT_RX_COALESCE_NSECS; ++ ++ /* Mark every quarter of the queue a packet for interrupt ++ in order to be able to wake up the queue if it was stopped */ ++ gmac->irq_every_tx_packets = 1 << (gmac->txq_order - 2); ++ ++ return 0; ++} ++ ++static void gmac_uninit(struct net_device *dev) ++{ ++ if (dev->phydev) ++ phy_disconnect(dev->phydev); ++} ++ ++static int gmac_setup_txqs(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ void __iomem *rwptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG; ++ void __iomem *base_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_BASE_REG; ++ ++ unsigned int n_txq = dev->num_tx_queues; ++ size_t entries = 1 <<gmac->txq_order; ++ size_t len = n_txq * entries; ++ struct gmac_txq *txq = gmac->txq; ++ GMAC_TXDESC_T *desc_ring; ++ struct sk_buff **skb_tab; ++ unsigned int r; ++ int i; ++ ++ skb_tab = kzalloc(len * sizeof(*skb_tab), GFP_KERNEL); ++ if (!skb_tab) ++ return -ENOMEM; ++ ++ desc_ring = dma_alloc_coherent(toe->dev, len * sizeof(*desc_ring), ++ &gmac->txq_dma_base, GFP_KERNEL); ++ ++ if (!desc_ring) { ++ kfree(skb_tab); ++ return -ENOMEM; ++ } ++ ++ BUG_ON(gmac->txq_dma_base & ~DMA_Q_BASE_MASK); ++ ++ writel(gmac->txq_dma_base | gmac->txq_order, base_reg); ++ ++ for (i = 0; i < n_txq; i++) { ++ txq->ring = desc_ring; ++ txq->skb = skb_tab; ++ txq->noirq_packets = 0; ++ ++ r = readw(rwptr_reg); ++ rwptr_reg += 2; ++ writew(r, rwptr_reg); ++ rwptr_reg +=2; ++ txq->cptr = r; ++ ++ txq++; ++ desc_ring += entries; ++ skb_tab += entries; ++ } ++ ++ return 0; ++} ++ ++static void gmac_clean_txq(struct net_device *dev, struct gmac_txq *txq, ++ unsigned int r) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned int errs = 0; ++ unsigned int pkts = 0; ++ unsigned int hwchksum = 0; ++ unsigned long bytes = 0; ++ unsigned int m = (1 << gmac->txq_order) - 1; ++ unsigned int c = txq->cptr; ++ GMAC_TXDESC_0_T word0; ++ GMAC_TXDESC_1_T word1; ++ unsigned int word3; ++ dma_addr_t mapping; ++ GMAC_TXDESC_T *txd; ++ unsigned short nfrags; ++ ++ if (unlikely(c == r)) ++ return; ++ ++ rmb(); ++ while (c != r) { ++ txd = txq->ring + c; ++ word0 = txd->word0; ++ word1 = txd->word1; ++ mapping = txd->word2.buf_adr; ++ word3 = txd->word3.bits32; ++ ++ dma_unmap_single(toe->dev, mapping, word0.bits.buffer_size, DMA_TO_DEVICE); ++ ++ if (word3 & EOF_BIT) ++ dev_kfree_skb(txq->skb[c]); ++ ++ c++; ++ c &= m; ++ ++ if (!(word3 & SOF_BIT)) ++ continue; ++ ++ if (!word0.bits.status_tx_ok) { ++ errs++; ++ continue; ++ } ++ ++ pkts++; ++ bytes += txd->word1.bits.byte_count; ++ ++ if (word1.bits32 & TSS_CHECKUM_ENABLE) ++ hwchksum++; ++ ++ nfrags = word0.bits.desc_count - 1; ++ if (nfrags) { ++ if (nfrags >= TX_MAX_FRAGS) ++ nfrags = TX_MAX_FRAGS - 1; ++ ++ u64_stats_update_begin(&gmac->tx_stats_syncp); ++ gmac->tx_frag_stats[nfrags]++; ++ u64_stats_update_end(&gmac->ir_stats_syncp); ++ } ++ } ++ ++ u64_stats_update_begin(&gmac->ir_stats_syncp); ++ gmac->stats.tx_errors += errs; ++ gmac->stats.tx_packets += pkts; ++ gmac->stats.tx_bytes += bytes; ++ gmac->tx_hw_csummed += hwchksum; ++ u64_stats_update_end(&gmac->ir_stats_syncp); ++ ++ txq->cptr = c; ++} ++ ++static void gmac_cleanup_txqs(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ void __iomem *rwptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG; ++ void __iomem *base_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_BASE_REG; ++ ++ unsigned n_txq = dev->num_tx_queues; ++ unsigned int r, i; ++ ++ for (i = 0; i < n_txq; i++) { ++ r = readw(rwptr_reg); ++ rwptr_reg += 2; ++ writew(r, rwptr_reg); ++ rwptr_reg += 2; ++ ++ gmac_clean_txq(dev, gmac->txq + i, r); ++ } ++ writel(0, base_reg); ++ ++ kfree(gmac->txq->skb); ++ dma_free_coherent(toe->dev, ++ n_txq * sizeof(*gmac->txq->ring) << gmac->txq_order, ++ gmac->txq->ring, gmac->txq_dma_base); ++} ++ ++static int gmac_setup_rxq(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ NONTOE_QHDR_T __iomem *qhdr = toe->iomem + TOE_DEFAULT_Q_HDR_BASE(dev->dev_id); ++ ++ gmac->rxq_rwptr = &qhdr->word1; ++ gmac->rxq_ring = dma_alloc_coherent(toe->dev, ++ sizeof(*gmac->rxq_ring) << gmac->rxq_order, ++ &gmac->rxq_dma_base, GFP_KERNEL); ++ if (!gmac->rxq_ring) ++ return -ENOMEM; ++ ++ BUG_ON(gmac->rxq_dma_base & ~NONTOE_QHDR0_BASE_MASK); ++ ++ writel(gmac->rxq_dma_base | gmac->rxq_order, &qhdr->word0); ++ writel(0, gmac->rxq_rwptr); ++ return 0; ++} ++ ++static void gmac_cleanup_rxq(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ ++ NONTOE_QHDR_T __iomem *qhdr = toe->iomem + TOE_DEFAULT_Q_HDR_BASE(dev->dev_id); ++ void __iomem *dma_reg = &qhdr->word0; ++ void __iomem *ptr_reg = &qhdr->word1; ++ GMAC_RXDESC_T *rxd = gmac->rxq_ring; ++ DMA_RWPTR_T rw; ++ unsigned int r, w; ++ unsigned int m = (1 <<gmac->rxq_order) - 1; ++ struct page *page; ++ dma_addr_t mapping; ++ ++ rw.bits32 = readl(ptr_reg); ++ r = rw.bits.rptr; ++ w = rw.bits.wptr; ++ writew(r, ptr_reg + 2); ++ ++ writel(0, dma_reg); ++ ++ rmb(); ++ while (r != w) { ++ mapping = rxd[r].word2.buf_adr; ++ r++; ++ r &= m; ++ ++ if (!mapping) ++ continue; ++ ++ page = pfn_to_page(dma_to_pfn(toe->dev, mapping)); ++ put_page(page); ++ } ++ ++ dma_free_coherent(toe->dev, sizeof(*gmac->rxq_ring) << gmac->rxq_order, ++ gmac->rxq_ring, gmac->rxq_dma_base); ++} ++ ++static struct page *toe_freeq_alloc_map_page(struct toe_private *toe, int pn) ++{ ++ unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order; ++ unsigned int frag_len = 1 << toe->freeq_frag_order; ++ GMAC_RXDESC_T *freeq_entry; ++ dma_addr_t mapping; ++ struct page *page; ++ int i; ++ ++ page = alloc_page(__GFP_COLD | GFP_ATOMIC); ++ if (!page) ++ return NULL; ++ ++ mapping = dma_map_single(toe->dev, page_address(page), ++ PAGE_SIZE, DMA_FROM_DEVICE); ++ ++ if (unlikely(dma_mapping_error(toe->dev, mapping) || !mapping)) { ++ put_page(page); ++ return NULL; ++ } ++ ++ freeq_entry = toe->freeq_ring + (pn << fpp_order); ++ for (i = 1 << fpp_order; i > 0; --i) { ++ freeq_entry->word2.buf_adr = mapping; ++ freeq_entry++; ++ mapping += frag_len; ++ } ++ ++ if (toe->freeq_page_tab[pn]) { ++ mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr; ++ dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE); ++ put_page(toe->freeq_page_tab[pn]); ++ } ++ ++ toe->freeq_page_tab[pn] = page; ++ return page; ++} ++ ++static unsigned int toe_fill_freeq(struct toe_private *toe, int reset) ++{ ++ void __iomem *rwptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG; ++ ++ DMA_RWPTR_T rw; ++ unsigned int pn, epn; ++ unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order; ++ unsigned int m_pn = (1 << (toe->freeq_order - fpp_order)) - 1; ++ struct page *page; ++ unsigned int count = 0; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&toe->freeq_lock, flags); ++ ++ rw.bits32 = readl(rwptr_reg); ++ pn = (reset ? rw.bits.rptr : rw.bits.wptr) >> fpp_order; ++ epn = (rw.bits.rptr >> fpp_order) - 1; ++ epn &= m_pn; ++ ++ while (pn != epn) { ++ page = toe->freeq_page_tab[pn]; ++ ++ if (atomic_read(&page->_count) > 1) { ++ unsigned int fl = (pn -epn) & m_pn; ++ ++ if (fl > 64 >> fpp_order) ++ break; ++ ++ page = toe_freeq_alloc_map_page(toe, pn); ++ if (!page) ++ break; ++ } ++ ++ atomic_add(1 << fpp_order, &page->_count); ++ count += 1 << fpp_order; ++ pn++; ++ pn &= m_pn; ++ } ++ ++ wmb(); ++ writew(pn << fpp_order, rwptr_reg+2); ++ ++ spin_unlock_irqrestore(&toe->freeq_lock, flags); ++ return count; ++} ++ ++static int toe_setup_freeq(struct toe_private *toe) ++{ ++ void __iomem *dma_reg = toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG; ++ QUEUE_THRESHOLD_T qt; ++ DMA_SKB_SIZE_T skbsz; ++ unsigned int filled; ++ unsigned int frag_len = 1 << toe->freeq_frag_order; ++ unsigned int len = 1 << toe->freeq_order; ++ unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order; ++ unsigned int pages = len >> fpp_order; ++ dma_addr_t mapping; ++ unsigned int pn; ++ ++ toe->freeq_ring = dma_alloc_coherent(toe->dev, ++ sizeof(*toe->freeq_ring) << toe->freeq_order, ++ &toe->freeq_dma_base, GFP_KERNEL); ++ if (!toe->freeq_ring) ++ return -ENOMEM; ++ ++ BUG_ON(toe->freeq_dma_base & ~DMA_Q_BASE_MASK); ++ ++ toe->freeq_page_tab = kzalloc(pages * sizeof(*toe->freeq_page_tab), ++ GFP_KERNEL); ++ if (!toe->freeq_page_tab) ++ goto err_freeq; ++ ++ for (pn = 0; pn < pages; pn++) ++ if (!toe_freeq_alloc_map_page(toe, pn)) ++ goto err_freeq_alloc; ++ ++ filled = toe_fill_freeq(toe, 1); ++ if (!filled) ++ goto err_freeq_alloc; ++ ++ qt.bits32 = readl(toe->iomem + GLOBAL_QUEUE_THRESHOLD_REG); ++ qt.bits.swfq_empty = 32; ++ writel(qt.bits32, toe->iomem + GLOBAL_QUEUE_THRESHOLD_REG); ++ ++ skbsz.bits.sw_skb_size = 1 << toe->freeq_frag_order; ++ writel(skbsz.bits32, toe->iomem + GLOBAL_DMA_SKB_SIZE_REG); ++ writel(toe->freeq_dma_base | toe->freeq_order, dma_reg); ++ ++ return 0; ++ ++err_freeq_alloc: ++ while (pn > 0) { ++ --pn; ++ mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr; ++ dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE); ++ put_page(toe->freeq_page_tab[pn]); ++ } ++ ++err_freeq: ++ dma_free_coherent(toe->dev, ++ sizeof(*toe->freeq_ring) << toe->freeq_order, ++ toe->freeq_ring, toe->freeq_dma_base); ++ toe->freeq_ring = NULL; ++ return -ENOMEM; ++} ++ ++static void toe_cleanup_freeq(struct toe_private *toe) ++{ ++ void __iomem *dma_reg = toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG; ++ void __iomem *ptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG; ++ ++ unsigned int frag_len = 1 << toe->freeq_frag_order; ++ unsigned int len = 1 << toe->freeq_order; ++ unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order; ++ unsigned int pages = len >> fpp_order; ++ struct page *page; ++ dma_addr_t mapping; ++ unsigned int pn; ++ ++ writew(readw(ptr_reg), ptr_reg + 2); ++ writel(0, dma_reg); ++ ++ for (pn = 0; pn < pages; pn++) { ++ mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr; ++ dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE); ++ ++ page = toe->freeq_page_tab[pn]; ++ while (atomic_read(&page->_count) > 0) ++ put_page(page); ++ } ++ ++ kfree(toe->freeq_page_tab); ++ ++ dma_free_coherent(toe->dev, ++ sizeof(*toe->freeq_ring) << toe->freeq_order, ++ toe->freeq_ring, toe->freeq_dma_base); ++} ++ ++static int toe_resize_freeq(struct toe_private *toe, int changing_dev_id) ++{ ++ void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG; ++ struct gmac_private *gmac; ++ struct net_device *other = toe->netdev[1 - changing_dev_id]; ++ unsigned new_size = 0; ++ unsigned new_order; ++ int err; ++ unsigned long flags; ++ unsigned en; ++ ++ if (other && netif_running(other)) ++ return -EBUSY; ++ ++ if (toe->netdev[0]) { ++ gmac = netdev_priv(toe->netdev[0]); ++ new_size = 1 << (gmac->rxq_order + 1); ++ } ++ ++ if (toe->netdev[1]) { ++ gmac = netdev_priv(toe->netdev[1]); ++ new_size += 1 << (gmac->rxq_order + 1); ++ } ++ ++ new_order = min(15, ilog2(new_size - 1) + 1); ++ if (toe->freeq_order == new_order) ++ return 0; ++ ++ spin_lock_irqsave(&toe->irq_lock, flags); ++ en = readl(irqen_reg); ++ en &= ~SWFQ_EMPTY_INT_BIT; ++ writel(en, irqen_reg); ++ ++ if (toe->freeq_ring) ++ toe_cleanup_freeq(toe); ++ ++ toe->freeq_order = new_order; ++ err = toe_setup_freeq(toe); ++ ++ en |= SWFQ_EMPTY_INT_BIT; ++ writel(en, irqen_reg); ++ spin_unlock_irqrestore(&toe->irq_lock, flags); ++ ++ return err; ++} ++ ++static void gmac_tx_irq_enable(struct net_device *dev, unsigned txq, int en) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned val, mask; ++ ++ mask = GMAC0_IRQ0_TXQ0_INTS << (6 * dev->dev_id + txq); ++ ++ if (en) ++ writel(mask, toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG); ++ ++ val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++ val = en ? val | mask : val & ~mask; ++ writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++} ++ ++ ++static void gmac_tx_irq(struct net_device *dev, unsigned txq_num) ++{ ++ struct netdev_queue *ntxq = netdev_get_tx_queue(dev, txq_num); ++ ++ gmac_tx_irq_enable(dev, txq_num, 0); ++ netif_tx_wake_queue(ntxq); ++} ++ ++static int gmac_map_tx_bufs(struct net_device *dev, struct sk_buff *skb, ++ struct gmac_txq *txq, unsigned short *desc) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ struct skb_shared_info *skb_si = skb_shinfo(skb); ++ skb_frag_t *skb_frag; ++ short frag, last_frag = skb_si->nr_frags - 1; ++ unsigned short m = (1 << gmac->txq_order) -1; ++ unsigned short w = *desc; ++ unsigned word1, word3, buflen; ++ dma_addr_t mapping; ++ void *buffer; ++ unsigned short mtu; ++ GMAC_TXDESC_T *txd; ++ ++ mtu = ETH_HLEN; ++ mtu += dev->mtu; ++ if (skb->protocol == htons(ETH_P_8021Q)) ++ mtu += VLAN_HLEN; ++ ++ word1 = skb->len; ++ word3 = SOF_BIT; ++ ++ if (word1 > mtu) { ++ word1 |= TSS_MTU_ENABLE_BIT; ++ word3 += mtu; ++ } ++ ++ if (skb->ip_summed != CHECKSUM_NONE) { ++ int tcp = 0; ++ if (skb->protocol == htons(ETH_P_IP)) { ++ word1 |= TSS_IP_CHKSUM_BIT; ++ tcp = ip_hdr(skb)->protocol == IPPROTO_TCP; ++ } else { /* IPv6 */ ++ word1 |= TSS_IPV6_ENABLE_BIT; ++ tcp = ipv6_hdr(skb)->nexthdr == IPPROTO_TCP; ++ } ++ ++ word1 |= tcp ? TSS_TCP_CHKSUM_BIT : TSS_UDP_CHKSUM_BIT; ++ } ++ ++ frag = -1; ++ while (frag <= last_frag) { ++ if (frag == -1) { ++ buffer = skb->data; ++ buflen = skb_headlen(skb); ++ } else { ++ skb_frag = skb_si->frags + frag; ++ buffer = page_address(skb_frag_page(skb_frag)) + ++ skb_frag->page_offset; ++ buflen = skb_frag->size; ++ } ++ ++ if (frag == last_frag) { ++ word3 |= EOF_BIT; ++ txq->skb[w] = skb; ++ } ++ ++ mapping = dma_map_single(toe->dev, buffer, buflen, ++ DMA_TO_DEVICE); ++ if (dma_mapping_error(toe->dev, mapping) || ++ !(mapping & PAGE_MASK)) ++ goto map_error; ++ ++ txd = txq->ring + w; ++ txd->word0.bits32 = buflen; ++ txd->word1.bits32 = word1; ++ txd->word2.buf_adr = mapping; ++ txd->word3.bits32 = word3; ++ ++ word3 &= MTU_SIZE_BIT_MASK; ++ w++; ++ w &= m; ++ frag++; ++ } ++ ++ *desc = w; ++ return 0; ++ ++map_error: ++ while (w != *desc) { ++ w--; ++ w &= m; ++ ++ dma_unmap_page(toe->dev, txq->ring[w].word2.buf_adr, ++ txq->ring[w].word0.bits.buffer_size, DMA_TO_DEVICE); ++ } ++ return ENOMEM; ++} ++ ++static int gmac_start_xmit(struct sk_buff *skb, struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ ++ void __iomem *ptr_reg; ++ struct gmac_txq *txq; ++ struct netdev_queue *ntxq; ++ int txq_num, nfrags; ++ DMA_RWPTR_T rw; ++ unsigned short r, w, d; ++ unsigned short m = (1 << gmac->txq_order) - 1; ++ ++ SKB_FRAG_ASSERT(skb); ++ ++ if (unlikely(skb->len >= 0x10000)) ++ goto out_drop_free; ++ ++ txq_num = skb_get_queue_mapping(skb); ++ ptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_PTR_REG(txq_num); ++ txq = &gmac->txq[txq_num]; ++ ntxq = netdev_get_tx_queue(dev, txq_num); ++ nfrags = skb_shinfo(skb)->nr_frags; ++ ++ rw.bits32 = readl(ptr_reg); ++ r = rw.bits.rptr; ++ w = rw.bits.wptr; ++ ++ d = txq->cptr - w - 1; ++ d &= m; ++ ++ if (unlikely(d < nfrags+2)) ++ { ++ gmac_clean_txq(dev, txq, r); ++ d = txq->cptr - w - 1; ++ d &= m; ++ ++ if (unlikely(d < nfrags+2)) { ++ netif_tx_stop_queue(ntxq); ++ ++ d = txq->cptr + nfrags + 16; ++ d &= m; ++ txq->ring[d].word3.bits.eofie = 1; ++ gmac_tx_irq_enable(dev, txq_num, 1); ++ ++ u64_stats_update_begin(&gmac->tx_stats_syncp); ++ dev->stats.tx_fifo_errors++; ++ u64_stats_update_end(&gmac->tx_stats_syncp); ++ return NETDEV_TX_BUSY; ++ } ++ } ++ ++ if (unlikely(gmac_map_tx_bufs(dev, skb, txq, &w))) { ++ if (skb_linearize(skb)) ++ goto out_drop; ++ ++ if (unlikely(gmac_map_tx_bufs(dev, skb, txq, &w))) ++ goto out_drop_free; ++ ++ u64_stats_update_begin(&gmac->tx_stats_syncp); ++ gmac->tx_frags_linearized++; ++ u64_stats_update_end(&gmac->tx_stats_syncp); ++ } ++ ++ writew(w, ptr_reg+2); ++ ++ gmac_clean_txq(dev, txq, r); ++ return NETDEV_TX_OK; ++ ++out_drop_free: ++ dev_kfree_skb(skb); ++out_drop: ++ u64_stats_update_begin(&gmac->tx_stats_syncp); ++ gmac->stats.tx_dropped++; ++ u64_stats_update_end(&gmac->tx_stats_syncp); ++ return NETDEV_TX_OK; ++} ++ ++static void gmac_tx_timeout(struct net_device *dev) ++{ ++ netdev_err(dev, "Tx timeout\n"); ++ gmac_dump_dma_state(dev); ++} ++ ++static void gmac_enable_irq(struct net_device *dev, int enable) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned long flags; ++ unsigned val, mask; ++ ++ spin_lock_irqsave(&toe->irq_lock, flags); ++ ++ mask = GMAC0_IRQ0_2 << (dev->dev_id * 2); ++ val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++ val = enable ? (val | mask) : (val & ~mask); ++ writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++ ++ mask = DEFAULT_Q0_INT_BIT << dev->dev_id; ++ val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ val = enable ? (val | mask) : (val & ~mask); ++ writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ ++ mask = GMAC0_IRQ4_8 << (dev->dev_id * 8); ++ val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG); ++ val = enable ? (val | mask) : (val & ~mask); ++ writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG); ++ ++ spin_unlock_irqrestore(&toe->irq_lock, flags); ++} ++ ++static void gmac_enable_rx_irq(struct net_device *dev, int enable) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned long flags; ++ unsigned val, mask; ++ ++ spin_lock_irqsave(&toe->irq_lock, flags); ++ mask = DEFAULT_Q0_INT_BIT << dev->dev_id; ++ ++ val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ val = enable ? (val | mask) : (val & ~mask); ++ writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ ++ spin_unlock_irqrestore(&toe->irq_lock, flags); ++} ++ ++static struct sk_buff *gmac_skb_if_good_frame(struct gmac_private *gmac, ++ GMAC_RXDESC_0_T word0, unsigned frame_len) ++{ ++ struct sk_buff *skb = NULL; ++ unsigned rx_status = word0.bits.status; ++ unsigned rx_csum = word0.bits.chksum_status; ++ ++ gmac->rx_stats[rx_status]++; ++ gmac->rx_csum_stats[rx_csum]++; ++ ++ if (word0.bits.derr || word0.bits.perr || ++ rx_status || frame_len < ETH_ZLEN || ++ rx_csum >= RX_CHKSUM_IP_ERR_UNKNOWN) { ++ gmac->stats.rx_errors++; ++ ++ if (frame_len < ETH_ZLEN || RX_ERROR_LENGTH(rx_status)) ++ gmac->stats.rx_length_errors++; ++ if (RX_ERROR_OVER(rx_status)) ++ gmac->stats.rx_over_errors++; ++ if (RX_ERROR_CRC(rx_status)) ++ gmac->stats.rx_crc_errors++; ++ if (RX_ERROR_FRAME(rx_status)) ++ gmac->stats.rx_frame_errors++; ++ ++ return NULL; ++ } ++ ++ skb = napi_get_frags(&gmac->napi); ++ if (!skb) ++ return NULL; ++ ++ if (rx_csum == RX_CHKSUM_IP_UDP_TCP_OK) ++ skb->ip_summed = CHECKSUM_UNNECESSARY; ++ ++ gmac->stats.rx_bytes += frame_len; ++ gmac->stats.rx_packets++; ++ return skb; ++} ++ ++static unsigned gmac_rx(struct net_device *dev, unsigned budget) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ void __iomem *ptr_reg = gmac->rxq_rwptr; ++ ++ static struct sk_buff *skb; ++ ++ DMA_RWPTR_T rw; ++ unsigned short r, w; ++ unsigned short m = (1 << gmac->rxq_order) -1; ++ GMAC_RXDESC_T *rx = NULL; ++ struct page* page = NULL; ++ unsigned page_offs; ++ unsigned int frame_len, frag_len; ++ int frag_nr = 0; ++ ++ GMAC_RXDESC_0_T word0; ++ GMAC_RXDESC_1_T word1; ++ dma_addr_t mapping; ++ GMAC_RXDESC_3_T word3; ++ ++ rw.bits32 = readl(ptr_reg); ++ /* Reset interrupt as all packages until here are taken into account */ ++ writel(DEFAULT_Q0_INT_BIT << dev->dev_id, ++ toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG); ++ r = rw.bits.rptr; ++ w = rw.bits.wptr; ++ ++ while (budget && w != r) { ++ rx = gmac->rxq_ring + r; ++ word0 = rx->word0; ++ word1 = rx->word1; ++ mapping = rx->word2.buf_adr; ++ word3 = rx->word3; ++ ++ r++; ++ r &= m; ++ ++ frag_len = word0.bits.buffer_size; ++ frame_len =word1.bits.byte_count; ++ page_offs = mapping & ~PAGE_MASK; ++ ++ if (unlikely(!mapping)) { ++ netdev_err(dev, "rxq[%u]: HW BUG: zero DMA desc\n", r); ++ goto err_drop; ++ } ++ ++ page = pfn_to_page(dma_to_pfn(toe->dev, mapping)); ++ ++ if (word3.bits32 & SOF_BIT) { ++ if (unlikely(skb)) { ++ napi_free_frags(&gmac->napi); ++ gmac->stats.rx_dropped++; ++ } ++ ++ skb = gmac_skb_if_good_frame(gmac, word0, frame_len); ++ if (unlikely(!skb)) ++ goto err_drop; ++ ++ page_offs += NET_IP_ALIGN; ++ frag_len -= NET_IP_ALIGN; ++ frag_nr = 0; ++ ++ } else if (!skb) { ++ put_page(page); ++ continue; ++ } ++ ++ if (word3.bits32 & EOF_BIT) ++ frag_len = frame_len - skb->len; ++ ++ /* append page frag to skb */ ++ if (unlikely(frag_nr == MAX_SKB_FRAGS)) ++ goto err_drop; ++ ++ if (frag_len == 0) ++ netdev_err(dev, "Received fragment with len = 0\n"); ++ ++ skb_fill_page_desc(skb, frag_nr, page, page_offs, frag_len); ++ skb->len += frag_len; ++ skb->data_len += frag_len; ++ skb->truesize += frag_len; ++ frag_nr++; ++ ++ if (word3.bits32 & EOF_BIT) { ++ napi_gro_frags(&gmac->napi); ++ skb = NULL; ++ --budget; ++ } ++ continue; ++ ++err_drop: ++ if (skb) { ++ napi_free_frags(&gmac->napi); ++ skb = NULL; ++ } ++ ++ if (mapping) ++ put_page(page); ++ ++ gmac->stats.rx_dropped++; ++ } ++ ++ writew(r, ptr_reg); ++ return budget; ++} ++ ++static int gmac_napi_poll(struct napi_struct *napi, int budget) ++{ ++ struct gmac_private *gmac = netdev_priv(napi->dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned rx; ++ unsigned freeq_threshold = 1 << (toe->freeq_order - 1); ++ ++ u64_stats_update_begin(&gmac->rx_stats_syncp); ++ ++ rx = budget - gmac_rx(napi->dev, budget); ++ ++ if (rx == 0) { ++ napi_gro_flush(napi, false); ++ __napi_complete(napi); ++ gmac_enable_rx_irq(napi->dev, 1); ++ ++gmac->rx_napi_exits; ++ } ++ ++ gmac->freeq_refill += rx; ++ if (gmac->freeq_refill > freeq_threshold) { ++ gmac->freeq_refill -= freeq_threshold; ++ toe_fill_freeq(toe, 0); ++ } ++ ++ u64_stats_update_end(&gmac->rx_stats_syncp); ++ return budget; ++} ++ ++static void gmac_dump_dma_state(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ void __iomem *ptr_reg; ++ unsigned reg[5]; ++ ++ /* Interrupt status */ ++ reg[0] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG); ++ reg[1] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG); ++ reg[2] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_2_REG); ++ reg[3] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_3_REG); ++ reg[4] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG); ++ netdev_err(dev, "IRQ status: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", ++ reg[0], reg[1], reg[2], reg[3], reg[4]); ++ ++ /* Interrupt enable */ ++ reg[0] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++ reg[1] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ reg[2] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_2_REG); ++ reg[3] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_3_REG); ++ reg[4] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG); ++ netdev_err(dev, "IRQ enable: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", ++ reg[0], reg[1], reg[2], reg[3], reg[4]); ++ ++ /* RX DMA status */ ++ reg[0] = readl(gmac->dma_iomem + GMAC_DMA_RX_FIRST_DESC_REG); ++ reg[1] = readl(gmac->dma_iomem + GMAC_DMA_RX_CURR_DESC_REG); ++ reg[2] = GET_RPTR(gmac->rxq_rwptr); ++ reg[3] = GET_WPTR(gmac->rxq_rwptr); ++ netdev_err(dev, "RX DMA regs: 0x%08x 0x%08x, ptr: %u %u\n", ++ reg[0], reg[1], reg[2], reg[3]); ++ ++ reg[0] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD0_REG); ++ reg[1] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD1_REG); ++ reg[2] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD2_REG); ++ reg[3] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD3_REG); ++ netdev_err(dev, "RX DMA descriptor: 0x%08x 0x%08x 0x%08x 0x%08x\n", ++ reg[0], reg[1], reg[2], reg[3]); ++ ++ /* TX DMA status */ ++ ptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG; ++ ++ reg[0] = readl(gmac->dma_iomem + GMAC_DMA_TX_FIRST_DESC_REG); ++ reg[1] = readl(gmac->dma_iomem + GMAC_DMA_TX_CURR_DESC_REG); ++ reg[2] = GET_RPTR(ptr_reg); ++ reg[3] = GET_WPTR(ptr_reg); ++ netdev_err(dev, "TX DMA regs: 0x%08x 0x%08x, ptr: %u %u\n", ++ reg[0], reg[1], reg[2], reg[3]); ++ ++ reg[0] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD0_REG); ++ reg[1] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD1_REG); ++ reg[2] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD2_REG); ++ reg[3] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD3_REG); ++ netdev_err(dev, "TX DMA descriptor: 0x%08x 0x%08x 0x%08x 0x%08x\n", ++ reg[0], reg[1], reg[2], reg[3]); ++ ++ /* FREE queues status */ ++ ptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG; ++ ++ reg[0] = GET_RPTR(ptr_reg); ++ reg[1] = GET_WPTR(ptr_reg); ++ ++ ptr_reg = toe->iomem + GLOBAL_HWFQ_RWPTR_REG; ++ ++ reg[2] = GET_RPTR(ptr_reg); ++ reg[3] = GET_WPTR(ptr_reg); ++ netdev_err(dev, "FQ SW ptr: %u %u, HW ptr: %u %u\n", ++ reg[0], reg[1], reg[2], reg[3]); ++} ++ ++static void gmac_update_hw_stats(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned long flags; ++ unsigned int rx_discards, rx_mcast, rx_bcast; ++ ++ spin_lock_irqsave(&toe->irq_lock, flags); ++ u64_stats_update_begin(&gmac->ir_stats_syncp); ++ ++ gmac->hw_stats[0] += rx_discards = readl(gmac->ctl_iomem + GMAC_IN_DISCARDS); ++ gmac->hw_stats[1] += readl(gmac->ctl_iomem + GMAC_IN_ERRORS); ++ gmac->hw_stats[2] += rx_mcast = readl(gmac->ctl_iomem + GMAC_IN_MCAST); ++ gmac->hw_stats[3] += rx_bcast = readl(gmac->ctl_iomem + GMAC_IN_BCAST); ++ gmac->hw_stats[4] += readl(gmac->ctl_iomem + GMAC_IN_MAC1); ++ gmac->hw_stats[5] += readl(gmac->ctl_iomem + GMAC_IN_MAC2); ++ ++ gmac->stats.rx_missed_errors += rx_discards; ++ gmac->stats.multicast += rx_mcast; ++ gmac->stats.multicast += rx_bcast; ++ ++ writel(GMAC0_MIB_INT_BIT << (dev->dev_id * 8), ++ toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG); ++ ++ u64_stats_update_end(&gmac->ir_stats_syncp); ++ spin_unlock_irqrestore(&toe->irq_lock, flags); ++} ++ ++static inline unsigned gmac_get_intr_flags(struct net_device *dev, int i) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ void __iomem *irqif_reg, *irqen_reg; ++ unsigned offs, val; ++ ++ offs = i * (GLOBAL_INTERRUPT_STATUS_1_REG - GLOBAL_INTERRUPT_STATUS_0_REG); ++ ++ irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG + offs; ++ irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG + offs; ++ ++ val = readl(irqif_reg) & readl(irqen_reg); ++ return val; ++} ++ ++enum hrtimer_restart gmac_coalesce_delay_expired( struct hrtimer *timer ) ++{ ++ struct gmac_private *gmac = container_of(timer, struct gmac_private, rx_coalesce_timer); ++ ++ napi_schedule(&gmac->napi); ++ return HRTIMER_NORESTART; ++} ++ ++static irqreturn_t gmac_irq(int irq, void *data) ++{ ++ struct net_device *dev = data; ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ unsigned val, orr = 0; ++ ++ orr |= val = gmac_get_intr_flags(dev, 0); ++ ++ if (unlikely(val & (GMAC0_IRQ0_2 << (dev->dev_id * 2)))) { ++ /* oh, crap. */ ++ netdev_err(dev, "hw failure/sw bug\n"); ++ gmac_dump_dma_state(dev); ++ ++ /* don't know how to recover, just reduce losses */ ++ gmac_enable_irq(dev, 0); ++ return IRQ_HANDLED; ++ } ++ ++ if (val & (GMAC0_IRQ0_TXQ0_INTS << (dev->dev_id * 6))) ++ gmac_tx_irq(dev, 0); ++ ++ orr |= val = gmac_get_intr_flags(dev, 1); ++ ++ if (val & (DEFAULT_Q0_INT_BIT << dev->dev_id)) { ++ ++ gmac_enable_rx_irq(dev, 0); ++ ++ if (!gmac->rx_coalesce_nsecs) ++ napi_schedule(&gmac->napi); ++ else { ++ ktime_t ktime; ++ ktime = ktime_set(0, gmac->rx_coalesce_nsecs); ++ hrtimer_start(&gmac->rx_coalesce_timer, ktime, HRTIMER_MODE_REL); ++ } ++ } ++ ++ orr |= val = gmac_get_intr_flags(dev, 4); ++ ++ if (unlikely(val & (GMAC0_MIB_INT_BIT << (dev->dev_id * 8)))) ++ gmac_update_hw_stats(dev); ++ ++ if (unlikely(val & (GMAC0_RX_OVERRUN_INT_BIT << (dev->dev_id * 8)))) { ++ writel(GMAC0_RXDERR_INT_BIT << (dev->dev_id * 8), ++ toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG); ++ ++ spin_lock(&toe->irq_lock); ++ u64_stats_update_begin(&gmac->ir_stats_syncp); ++ ++gmac->stats.rx_fifo_errors; ++ u64_stats_update_end(&gmac->ir_stats_syncp); ++ spin_unlock(&toe->irq_lock); ++ } ++ ++ return orr ? IRQ_HANDLED : IRQ_NONE; ++} ++ ++static void gmac_start_dma(struct gmac_private *gmac) ++{ ++ void __iomem *dma_ctrl_reg = gmac->dma_iomem + GMAC_DMA_CTRL_REG; ++ GMAC_DMA_CTRL_T dma_ctrl; ++ ++ dma_ctrl.bits32 = readl(dma_ctrl_reg); ++ dma_ctrl.bits.rd_enable = 1; ++ dma_ctrl.bits.td_enable = 1; ++ dma_ctrl.bits.loopback = 0; ++ dma_ctrl.bits.drop_small_ack = 0; ++ dma_ctrl.bits.rd_insert_bytes = NET_IP_ALIGN; ++ dma_ctrl.bits.rd_prot = HPROT_DATA_CACHE | HPROT_PRIVILIGED; ++ dma_ctrl.bits.rd_burst_size = HBURST_INCR8; ++ dma_ctrl.bits.rd_bus = HSIZE_8; ++ dma_ctrl.bits.td_prot = HPROT_DATA_CACHE; ++ dma_ctrl.bits.td_burst_size = HBURST_INCR8; ++ dma_ctrl.bits.td_bus = HSIZE_8; ++ ++ writel(dma_ctrl.bits32, dma_ctrl_reg); ++} ++ ++static void gmac_stop_dma(struct gmac_private *gmac) ++{ ++ void __iomem *dma_ctrl_reg = gmac->dma_iomem + GMAC_DMA_CTRL_REG; ++ GMAC_DMA_CTRL_T dma_ctrl; ++ ++ dma_ctrl.bits32 = readl(dma_ctrl_reg); ++ dma_ctrl.bits.rd_enable = 0; ++ dma_ctrl.bits.td_enable = 0; ++ writel(dma_ctrl.bits32, dma_ctrl_reg); ++} ++ ++static int gmac_open(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ int err; ++ ++ if (!dev->phydev) { ++ err = gmac_setup_phy(dev); ++ if (err) { ++ netif_err(gmac, ifup, dev, ++ "PHY init failed: %d\n", err); ++ return err; ++ } ++ } ++ ++ err = request_irq(dev->irq, gmac_irq, ++ IRQF_SHARED, dev->name, dev); ++ if (unlikely(err)) ++ return err; ++ ++ netif_carrier_off(dev); ++ phy_start(dev->phydev); ++ ++ err = toe_resize_freeq(gmac->toe, dev->dev_id); ++ if (unlikely(err)) ++ goto err_stop_phy; ++ ++ err = gmac_setup_rxq(dev); ++ if (unlikely(err)) ++ goto err_stop_phy; ++ ++ err = gmac_setup_txqs(dev); ++ if (unlikely(err)) { ++ gmac_cleanup_rxq(dev); ++ goto err_stop_phy; ++ } ++ ++ napi_enable(&gmac->napi); ++ ++ gmac_start_dma(gmac); ++ gmac_enable_irq(dev, 1); ++ gmac_enable_tx_rx(dev); ++ netif_tx_start_all_queues(dev); ++ ++ hrtimer_init(&gmac->rx_coalesce_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ gmac->rx_coalesce_timer.function = &gmac_coalesce_delay_expired; ++ return 0; ++ ++err_stop_phy: ++ phy_stop(dev->phydev); ++ free_irq(dev->irq, dev); ++ return err; ++} ++ ++static int gmac_stop(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ ++ hrtimer_cancel(&gmac->rx_coalesce_timer); ++ netif_tx_stop_all_queues(dev); ++ gmac_disable_tx_rx(dev); ++ gmac_stop_dma(gmac); ++ napi_disable(&gmac->napi); ++ ++ gmac_enable_irq(dev, 0); ++ gmac_cleanup_rxq(dev); ++ gmac_cleanup_txqs(dev); ++ ++ phy_stop(dev->phydev); ++ free_irq(dev->irq, dev); ++ ++ gmac_update_hw_stats(dev); ++ return 0; ++} ++ ++static void gmac_set_rx_mode(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct netdev_hw_addr *ha; ++ __u32 mc_filter[2]; ++ unsigned bit_nr; ++ GMAC_RX_FLTR_T filter = { .bits = { ++ .broadcast = 1, ++ .multicast = 1, ++ .unicast = 1, ++ } }; ++ ++ mc_filter[1] = mc_filter[0] = 0; ++ ++ if (dev->flags & IFF_PROMISC) { ++ filter.bits.error = 1; ++ filter.bits.promiscuous = 1; ++ } else if (!(dev->flags & IFF_ALLMULTI)) { ++ mc_filter[1] = mc_filter[0] = 0; ++ netdev_for_each_mc_addr(ha, dev) { ++ bit_nr = ~crc32_le(~0, ha->addr, ETH_ALEN) & 0x3f; ++ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 0x1f); ++ } ++ } ++ ++ writel(mc_filter[0], gmac->ctl_iomem + GMAC_MCAST_FIL0); ++ writel(mc_filter[1], gmac->ctl_iomem + GMAC_MCAST_FIL1); ++ writel(filter.bits32, gmac->ctl_iomem + GMAC_RX_FLTR); ++} ++ ++static void __gmac_set_mac_address(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ __le32 addr[3]; ++ ++ memset(addr, 0, sizeof(addr)); ++ memcpy(addr, dev->dev_addr, ETH_ALEN); ++ ++ writel(le32_to_cpu(addr[0]), gmac->ctl_iomem + GMAC_STA_ADD0); ++ writel(le32_to_cpu(addr[1]), gmac->ctl_iomem + GMAC_STA_ADD1); ++ writel(le32_to_cpu(addr[2]), gmac->ctl_iomem + GMAC_STA_ADD2); ++} ++ ++static int gmac_set_mac_address(struct net_device *dev, void *addr) ++{ ++ struct sockaddr *sa = addr; ++ ++ memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); ++ __gmac_set_mac_address(dev); ++ ++ return 0; ++} ++ ++static void gmac_clear_hw_stats(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ ++ readl(gmac->ctl_iomem + GMAC_IN_DISCARDS); ++ readl(gmac->ctl_iomem + GMAC_IN_ERRORS); ++ readl(gmac->ctl_iomem + GMAC_IN_MCAST); ++ readl(gmac->ctl_iomem + GMAC_IN_BCAST); ++ readl(gmac->ctl_iomem + GMAC_IN_MAC1); ++ readl(gmac->ctl_iomem + GMAC_IN_MAC2); ++} ++ ++static struct rtnl_link_stats64 *gmac_get_stats64(struct net_device *dev, ++ struct rtnl_link_stats64 *storage) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ unsigned int start; ++ ++ gmac_update_hw_stats(dev); ++ ++ /* racing with RX NAPI */ ++ do { ++ start = u64_stats_fetch_begin(&gmac->rx_stats_syncp); ++ ++ storage->rx_packets = gmac->stats.rx_packets; ++ storage->rx_bytes = gmac->stats.rx_bytes; ++ storage->rx_errors = gmac->stats.rx_errors; ++ storage->rx_dropped = gmac->stats.rx_dropped; ++ ++ storage->rx_length_errors = gmac->stats.rx_length_errors; ++ storage->rx_over_errors = gmac->stats.rx_over_errors; ++ storage->rx_crc_errors = gmac->stats.rx_crc_errors; ++ storage->rx_frame_errors = gmac->stats.rx_frame_errors; ++ ++ } while (u64_stats_fetch_retry(&gmac->rx_stats_syncp, start)); ++ ++ /* racing with MIB and TX completion interrupts */ ++ do { ++ start = u64_stats_fetch_begin(&gmac->ir_stats_syncp); ++ ++ storage->tx_errors = gmac->stats.tx_errors; ++ storage->tx_packets = gmac->stats.tx_packets; ++ storage->tx_bytes = gmac->stats.tx_bytes; ++ ++ storage->multicast = gmac->stats.multicast; ++ storage->rx_missed_errors = gmac->stats.rx_missed_errors; ++ storage->rx_fifo_errors = gmac->stats.rx_fifo_errors; ++ ++ } while (u64_stats_fetch_retry(&gmac->ir_stats_syncp, start)); ++ ++ /* racing with hard_start_xmit */ ++ do { ++ start = u64_stats_fetch_begin(&gmac->tx_stats_syncp); ++ ++ storage->tx_dropped = gmac->stats.tx_dropped; ++ ++ } while (u64_stats_fetch_retry(&gmac->tx_stats_syncp, start)); ++ ++ storage->rx_dropped += storage->rx_missed_errors; ++ ++ return storage; ++} ++ ++static int gmac_change_mtu(struct net_device *dev, int new_mtu) ++{ ++ int max_len = gmac_pick_rx_max_len(new_mtu); ++ ++ if (max_len < 0) ++ return -EINVAL; ++ ++ gmac_disable_tx_rx(dev); ++ ++ dev->mtu = new_mtu; ++ gmac_update_config0_reg(dev, ++ max_len << CONFIG0_MAXLEN_SHIFT, ++ CONFIG0_MAXLEN_MASK); ++ ++ netdev_update_features(dev); ++ ++ gmac_enable_tx_rx(dev); ++ ++ return 0; ++} ++ ++static netdev_features_t gmac_fix_features(struct net_device *dev, netdev_features_t features) ++{ ++ if (dev->mtu + ETH_HLEN + VLAN_HLEN > MTU_SIZE_BIT_MASK) ++ features &= ~GMAC_OFFLOAD_FEATURES; ++ ++ return features; ++} ++ ++static int gmac_set_features(struct net_device *dev, netdev_features_t features) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ int enable = features & NETIF_F_RXCSUM; ++ unsigned long flags; ++ u32 reg; ++ ++ spin_lock_irqsave(&gmac->config_lock, flags); ++ ++ reg = readl(gmac->ctl_iomem + GMAC_CONFIG0); ++ reg = enable ? reg | CONFIG0_RX_CHKSUM : reg & ~CONFIG0_RX_CHKSUM; ++ writel(reg, gmac->ctl_iomem + GMAC_CONFIG0); ++ ++ spin_unlock_irqrestore(&gmac->config_lock, flags); ++ return 0; ++} ++ ++static int gmac_get_sset_count(struct net_device *dev, int sset) ++{ ++ return sset == ETH_SS_STATS ? GMAC_STATS_NUM : 0; ++} ++ ++static void gmac_get_strings(struct net_device *dev, u32 stringset, u8 *data) ++{ ++ if (stringset != ETH_SS_STATS) ++ return; ++ ++ memcpy(data, gmac_stats_strings, sizeof(gmac_stats_strings)); ++} ++ ++static void gmac_get_ethtool_stats(struct net_device *dev, ++ struct ethtool_stats *estats, u64 *values) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ unsigned int start; ++ u64 *p; ++ int i; ++ ++ gmac_update_hw_stats(dev); ++ ++ /* racing with MIB interrupt */ ++ do { ++ p = values; ++ start = u64_stats_fetch_begin(&gmac->ir_stats_syncp); ++ ++ for (i = 0; i < RX_STATS_NUM; ++i) ++ *p++ = gmac->hw_stats[i]; ++ ++ } while (u64_stats_fetch_retry(&gmac->ir_stats_syncp, start)); ++ values = p; ++ ++ /* racing with RX NAPI */ ++ do { ++ p = values; ++ start = u64_stats_fetch_begin(&gmac->rx_stats_syncp); ++ ++ for (i = 0; i < RX_STATUS_NUM; ++i) ++ *p++ = gmac->rx_stats[i]; ++ for (i = 0; i < RX_CHKSUM_NUM; ++i) ++ *p++ = gmac->rx_csum_stats[i]; ++ *p++ = gmac->rx_napi_exits; ++ ++ } while (u64_stats_fetch_retry(&gmac->rx_stats_syncp, start)); ++ values = p; ++ ++ /* racing with TX start_xmit */ ++ do { ++ p = values; ++ start = u64_stats_fetch_begin(&gmac->tx_stats_syncp); ++ ++ for (i = 0; i < TX_MAX_FRAGS; ++i) { ++ *values++ = gmac->tx_frag_stats[i]; ++ gmac->tx_frag_stats[i] = 0; ++ } ++ *values++ = gmac->tx_frags_linearized; ++ *values++ = gmac->tx_hw_csummed; ++ ++ } while (u64_stats_fetch_retry(&gmac->tx_stats_syncp, start)); ++} ++ ++static int gmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ if (!dev->phydev) ++ return -ENXIO; ++ return phy_ethtool_gset(dev->phydev, cmd); ++} ++ ++static int gmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) ++{ ++ if (!dev->phydev) ++ return -ENXIO; ++ return phy_ethtool_sset(dev->phydev, cmd); ++} ++ ++static int gmac_nway_reset(struct net_device *dev) ++{ ++ if (!dev->phydev) ++ return -ENXIO; ++ return phy_start_aneg(dev->phydev); ++} ++ ++static void gmac_get_pauseparam(struct net_device *dev, ++ struct ethtool_pauseparam *pparam) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ GMAC_CONFIG0_T config0; ++ ++ config0.bits32 = readl(gmac->ctl_iomem + GMAC_CONFIG0); ++ ++ pparam->rx_pause = config0.bits.rx_fc_en; ++ pparam->tx_pause = config0.bits.tx_fc_en; ++ pparam->autoneg = true; ++} ++ ++static void gmac_get_ringparam(struct net_device *dev, ++ struct ethtool_ringparam *rp) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ GMAC_CONFIG0_T config0; ++ ++ config0.bits32 = readl(gmac->ctl_iomem + GMAC_CONFIG0); ++ ++ rp->rx_max_pending = 1 << 15; ++ rp->rx_mini_max_pending = 0; ++ rp->rx_jumbo_max_pending = 0; ++ rp->tx_max_pending = 1 << 15; ++ ++ rp->rx_pending = 1 << gmac->rxq_order; ++ rp->rx_mini_pending = 0; ++ rp->rx_jumbo_pending = 0; ++ rp->tx_pending = 1 << gmac->txq_order; ++} ++ ++static int toe_resize_freeq(struct toe_private *toe, int changing_dev_id); ++ ++static int gmac_set_ringparam(struct net_device *dev, ++ struct ethtool_ringparam *rp) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ struct toe_private *toe = gmac->toe; ++ int err = 0; ++ ++ if (netif_running(dev)) ++ return -EBUSY; ++ ++ if (rp->rx_pending) { ++ gmac->rxq_order = min(15, ilog2(rp->rx_pending - 1) + 1); ++ err = toe_resize_freeq(toe, dev->dev_id); ++ } ++ ++ if (rp->tx_pending) ++ { ++ gmac->txq_order = min(15, ilog2(rp->tx_pending - 1) + 1); ++ gmac->irq_every_tx_packets = 1 << (gmac->txq_order - 2); ++ } ++ ++ return err; ++} ++ ++static int gmac_get_coalesce(struct net_device *dev, ++ struct ethtool_coalesce *ecmd) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ ++ ecmd->rx_max_coalesced_frames = 1; ++ ecmd->tx_max_coalesced_frames = gmac->irq_every_tx_packets; ++ ecmd->rx_coalesce_usecs = gmac->rx_coalesce_nsecs/1000; ++ ++ return 0; ++} ++ ++static int gmac_set_coalesce(struct net_device *dev, ++ struct ethtool_coalesce *ecmd) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ ++ if (ecmd->tx_max_coalesced_frames < 1) ++ return -EINVAL; ++ if (ecmd->tx_max_coalesced_frames >= 1 << gmac->txq_order) ++ return -EINVAL; ++ ++ gmac->irq_every_tx_packets = ecmd->tx_max_coalesced_frames; ++ gmac->rx_coalesce_nsecs = ecmd->rx_coalesce_usecs * 1000; ++ ++ return 0; ++} ++ ++static u32 gmac_get_msglevel(struct net_device *dev) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ return gmac->msg_enable; ++} ++ ++static void gmac_set_msglevel(struct net_device *dev, u32 level) ++{ ++ struct gmac_private *gmac = netdev_priv(dev); ++ gmac->msg_enable = level; ++} ++ ++static void gmac_get_drvinfo(struct net_device *dev, ++ struct ethtool_drvinfo *info) ++{ ++ strcpy(info->driver, DRV_NAME); ++ strcpy(info->version, DRV_VERSION); ++ strcpy(info->bus_info, dev->dev_id ? "1" : "0"); ++} ++ ++static const struct net_device_ops gmac_351x_ops = { ++ .ndo_init = gmac_init, ++ .ndo_uninit = gmac_uninit, ++ .ndo_open = gmac_open, ++ .ndo_stop = gmac_stop, ++ .ndo_start_xmit = gmac_start_xmit, ++ .ndo_tx_timeout = gmac_tx_timeout, ++ .ndo_set_rx_mode = gmac_set_rx_mode, ++ .ndo_set_mac_address = gmac_set_mac_address, ++ .ndo_get_stats64 = gmac_get_stats64, ++ .ndo_change_mtu = gmac_change_mtu, ++ .ndo_fix_features = gmac_fix_features, ++ .ndo_set_features = gmac_set_features, ++}; ++ ++static const struct ethtool_ops gmac_351x_ethtool_ops = { ++ .get_sset_count = gmac_get_sset_count, ++ .get_strings = gmac_get_strings, ++ .get_ethtool_stats = gmac_get_ethtool_stats, ++ .get_settings = gmac_get_settings, ++ .set_settings = gmac_set_settings, ++ .get_link = ethtool_op_get_link, ++ .nway_reset = gmac_nway_reset, ++ .get_pauseparam = gmac_get_pauseparam, ++ .get_ringparam = gmac_get_ringparam, ++ .set_ringparam = gmac_set_ringparam, ++ .get_coalesce = gmac_get_coalesce, ++ .set_coalesce = gmac_set_coalesce, ++ .get_msglevel = gmac_get_msglevel, ++ .set_msglevel = gmac_set_msglevel, ++ .get_drvinfo = gmac_get_drvinfo, ++}; ++ ++static int gmac_init_netdev(struct toe_private *toe, int num, ++ struct platform_device *pdev) ++{ ++ struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data; ++ struct gmac_private *gmac; ++ struct net_device *dev; ++ int irq, err; ++ ++ if (!pdata->bus_id[num]) ++ return 0; ++ ++ irq = platform_get_irq(pdev, num); ++ if (irq < 0) { ++ dev_err(toe->dev, "No IRQ for ethernet device #%d\n", num); ++ return irq; ++ } ++ ++ dev = alloc_etherdev_mq(sizeof(*gmac), TX_QUEUE_NUM); ++ if (!dev) { ++ dev_err(toe->dev, "Can't allocate ethernet device #%d\n", num); ++ return -ENOMEM; ++ } ++ ++ gmac = netdev_priv(dev); ++ gmac->num = num; ++ gmac->toe = toe; ++ SET_NETDEV_DEV(dev, toe->dev); ++ ++ toe->netdev[num] = dev; ++ dev->dev_id = num; ++ ++ gmac->ctl_iomem = toe->iomem + TOE_GMAC_BASE(num); ++ gmac->dma_iomem = toe->iomem + TOE_GMAC_DMA_BASE(num); ++ dev->irq = irq; ++ ++ dev->netdev_ops = &gmac_351x_ops; ++ dev->ethtool_ops = &gmac_351x_ethtool_ops; ++ ++ spin_lock_init(&gmac->config_lock); ++ gmac_clear_hw_stats(dev); ++ ++ dev->hw_features = GMAC_OFFLOAD_FEATURES; ++ dev->features |= GMAC_OFFLOAD_FEATURES | NETIF_F_GRO; ++ ++ gmac->freeq_refill = 0; ++ netif_napi_add(dev, &gmac->napi, gmac_napi_poll, DEFAULT_NAPI_WEIGHT); ++ ++ if (is_valid_ether_addr((void *)toe->mac_addr[num])) ++ memcpy(dev->dev_addr, toe->mac_addr[num], ETH_ALEN); ++ else ++ random_ether_addr(dev->dev_addr); ++ __gmac_set_mac_address(dev); ++ ++ err = gmac_setup_phy(dev); ++ if (err) ++ netif_warn(gmac, probe, dev, ++ "PHY init failed: %d, deferring to ifup time\n", err); ++ ++ err = register_netdev(dev); ++ if (!err) ++ { ++ pr_info(DRV_NAME " %s: irq %d, dma base 0x%p, io base 0x%p\n", ++ dev->name, irq, gmac->dma_iomem, gmac->ctl_iomem); ++ return 0; ++ } ++ ++ toe->netdev[num] = NULL; ++ free_netdev(dev); ++ return err; ++} ++ ++static irqreturn_t toe_irq_thread(int irq, void *data) ++{ ++ struct toe_private *toe = data; ++ void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG; ++ void __iomem *irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG; ++ unsigned long irqmask = SWFQ_EMPTY_INT_BIT; ++ unsigned long flags; ++ ++ toe_fill_freeq(toe, 0); ++ ++ /* Ack and enable interrupt */ ++ spin_lock_irqsave(&toe->irq_lock, flags); ++ writel(irqmask, irqif_reg); ++ irqmask |= readl(irqen_reg); ++ writel(irqmask, irqen_reg); ++ spin_unlock_irqrestore(&toe->irq_lock, flags); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t toe_irq(int irq, void *data) ++{ ++ struct toe_private *toe = data; ++ void __iomem *irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG; ++ void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG; ++ unsigned long val, en; ++ irqreturn_t ret = IRQ_NONE; ++ ++ spin_lock(&toe->irq_lock); ++ ++ val = readl(irqif_reg); ++ en = readl(irqen_reg); ++ ++ if (val & en & SWFQ_EMPTY_INT_BIT) { ++ en &= ~(SWFQ_EMPTY_INT_BIT | GMAC0_RX_OVERRUN_INT_BIT ++ | GMAC1_RX_OVERRUN_INT_BIT); ++ writel(en, irqen_reg); ++ ret = IRQ_WAKE_THREAD; ++ } ++ ++ spin_unlock(&toe->irq_lock); ++ return ret; ++} ++ ++static int toe_init(struct toe_private *toe, ++ struct platform_device *pdev) ++{ ++ int err; ++ ++ writel(0, toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG); ++ writel(0, toe->iomem + GLOBAL_HW_FREEQ_BASE_SIZE_REG); ++ writel(0, toe->iomem + GLOBAL_SWFQ_RWPTR_REG); ++ writel(0, toe->iomem + GLOBAL_HWFQ_RWPTR_REG); ++ ++ toe->freeq_frag_order = DEFAULT_RX_BUF_ORDER; ++ toe->freeq_order = ~0; ++ ++ err = request_threaded_irq(toe->irq, toe_irq, ++ toe_irq_thread, IRQF_SHARED, DRV_NAME " toe", toe); ++ if (err) ++ goto err_freeq; ++ ++ return 0; ++ ++err_freeq: ++ toe_cleanup_freeq(toe); ++ return err; ++} ++ ++static void toe_deinit(struct toe_private *toe) ++{ ++ free_irq(toe->irq, toe); ++ toe_cleanup_freeq(toe); ++} ++ ++static int toe_reset(struct toe_private *toe) ++{ ++ unsigned int reg = 0, retry = 5; ++ ++ reg = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_RESET)); ++ reg |= RESET_GMAC1 | RESET_GMAC0; ++ writel(reg, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_RESET)); ++ ++ do { ++ udelay(2); ++ reg = readl((void __iomem*)(toe->iomem + ++ GLOBAL_TOE_VERSION_REG)); ++ barrier(); ++ } while (!reg && --retry); ++ ++ return reg ? 0 : -EIO; ++} ++ ++/* ++ * Interrupt config: ++ * ++ * GMAC0 intr bits ------> int0 ----> eth0 ++ * GMAC1 intr bits ------> int1 ----> eth1 ++ * TOE intr -------------> int1 ----> eth1 ++ * Classification Intr --> int0 ----> eth0 ++ * Default Q0 -----------> int0 ----> eth0 ++ * Default Q1 -----------> int1 ----> eth1 ++ * FreeQ intr -----------> int1 ----> eth1 ++ */ ++static void toe_init_irq(struct toe_private *toe) ++{ ++ writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG); ++ writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG); ++ writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_2_REG); ++ writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_3_REG); ++ writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG); ++ ++ writel(0xCCFC0FC0, toe->iomem + GLOBAL_INTERRUPT_SELECT_0_REG); ++ writel(0x00F00002, toe->iomem + GLOBAL_INTERRUPT_SELECT_1_REG); ++ writel(0xFFFFFFFF, toe->iomem + GLOBAL_INTERRUPT_SELECT_2_REG); ++ writel(0xFFFFFFFF, toe->iomem + GLOBAL_INTERRUPT_SELECT_3_REG); ++ writel(0xFF000003, toe->iomem + GLOBAL_INTERRUPT_SELECT_4_REG); ++ ++ /* edge-triggered interrupts packed to level-triggered one... */ ++ writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG); ++ writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG); ++ writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_2_REG); ++ writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_3_REG); ++ writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG); ++} ++ ++static void toe_save_mac_addr(struct toe_private *toe, ++ struct platform_device *pdev) ++{ ++ struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data; ++ void __iomem *ctl; ++ int i; ++ ++ for (i = 0; i < 2; i++) { ++ if (pdata->bus_id[i]) { ++ ctl = toe->iomem + TOE_GMAC_BASE(i); ++ toe->mac_addr[i][0] = cpu_to_le32(readl(ctl + GMAC_STA_ADD0)); ++ toe->mac_addr[i][1] = cpu_to_le32(readl(ctl + GMAC_STA_ADD1)); ++ toe->mac_addr[i][2] = cpu_to_le32(readl(ctl + GMAC_STA_ADD2)); ++ } ++ } ++} ++ ++static int gemini_gmac_probe(struct platform_device *pdev) ++{ ++ struct resource *res; ++ struct toe_private *toe; ++ int irq, retval; ++ ++ if (!pdev->dev.platform_data) ++ return -EINVAL; ++ ++ irq = platform_get_irq(pdev, 1); ++ if (irq < 0) ++ return irq; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) { ++ dev_err(&pdev->dev, "can't get device resources\n"); ++ return -ENODEV; ++ } ++ ++ toe = kzalloc(sizeof(*toe), GFP_KERNEL); ++ if (!toe) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, toe); ++ toe->dev = &pdev->dev; ++ toe->irq = irq; ++ ++ toe->iomem = ioremap(res->start, resource_size(res)); ++ if (!toe->iomem) { ++ dev_err(toe->dev, "ioremap failed\n"); ++ retval = -EIO; ++ goto err_data; ++ } ++ ++ toe_save_mac_addr(toe, pdev); ++ ++ retval = toe_reset(toe); ++ if (retval < 0) ++ goto err_unmap; ++ ++ pr_info(DRV_NAME " toe: irq %d, io base 0x%08x, version %d\n", ++ irq, res->start, retval); ++ ++ spin_lock_init(&toe->irq_lock); ++ spin_lock_init(&toe->freeq_lock); ++ ++ toe_init_irq(toe); ++ ++ retval = toe_init(toe, pdev); ++ if (retval) ++ goto err_unmap; ++ ++ retval = gmac_init_netdev(toe, 0, pdev); ++ if (retval) ++ goto err_uninit; ++ ++ retval = gmac_init_netdev(toe, 1, pdev); ++ if (retval) ++ goto err_uninit; ++ ++ return 0; ++ ++err_uninit: ++ if (toe->netdev[0]) ++ unregister_netdev(toe->netdev[0]); ++ toe_deinit(toe); ++err_unmap: ++ iounmap(toe->iomem); ++err_data: ++ kfree(toe); ++ return retval; ++} ++ ++static int gemini_gmac_remove(struct platform_device *pdev) ++{ ++ struct toe_private *toe = platform_get_drvdata(pdev); ++ int i; ++ ++ for (i = 0; i < 2; i++) ++ if (toe->netdev[i]) ++ unregister_netdev(toe->netdev[i]); ++ ++ toe_init_irq(toe); ++ toe_deinit(toe); ++ ++ iounmap(toe->iomem); ++ kfree(toe); ++ ++ return 0; ++} ++ ++static struct platform_driver gemini_gmac_driver = { ++ .probe = gemini_gmac_probe, ++ .remove = gemini_gmac_remove, ++ .driver.name = DRV_NAME, ++ .driver.owner = THIS_MODULE, ++}; ++ ++static int __init gemini_gmac_init(void) ++{ ++#ifdef CONFIG_MDIO_GPIO_MODULE ++ request_module("mdio-gpio"); ++#endif ++ return platform_driver_register(&gemini_gmac_driver); ++} ++ ++static void __exit gemini_gmac_exit(void) ++{ ++ platform_driver_unregister(&gemini_gmac_driver); ++} ++ ++module_init(gemini_gmac_init); ++module_exit(gemini_gmac_exit); +--- /dev/null ++++ b/drivers/net/ethernet/gemini/sl351x_hw.h +@@ -0,0 +1,1436 @@ ++/* ++ * Register definitions for Gemini LEPUS GMAC Ethernet device driver. ++ * ++ * Copyright (C) 2006, Storlink, Corp. ++ * Copyright (C) 2008-2009, Paulius Zaleckas <paulius.zaleckas@teltonika.lt> ++ * Copyright (C) 2010, Michał Mirosław <mirq-linux@rere.qmqm.pl> ++ * ++ * 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; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++#ifndef _GMAC_HW_H ++#define _GMAC_HW_H ++ ++#include <linux/bitops.h> ++ ++/* ++ * Base Registers ++ */ ++#define TOE_NONTOE_QUE_HDR_BASE 0x2000 ++#define TOE_TOE_QUE_HDR_BASE 0x3000 ++#define TOE_V_BIT_BASE 0x4000 ++#define TOE_A_BIT_BASE 0x6000 ++#define TOE_GMAC_DMA_BASE(x) (0x8000 + 0x4000 * (x)) ++#define TOE_GMAC_BASE(x) (0xA000 + 0x4000 * (x)) ++ ++/* ++ * Queue ID ++ */ ++#define TOE_SW_FREE_QID 0x00 ++#define TOE_HW_FREE_QID 0x01 ++#define TOE_GMAC0_SW_TXQ0_QID 0x02 ++#define TOE_GMAC0_SW_TXQ1_QID 0x03 ++#define TOE_GMAC0_SW_TXQ2_QID 0x04 ++#define TOE_GMAC0_SW_TXQ3_QID 0x05 ++#define TOE_GMAC0_SW_TXQ4_QID 0x06 ++#define TOE_GMAC0_SW_TXQ5_QID 0x07 ++#define TOE_GMAC0_HW_TXQ0_QID 0x08 ++#define TOE_GMAC0_HW_TXQ1_QID 0x09 ++#define TOE_GMAC0_HW_TXQ2_QID 0x0A ++#define TOE_GMAC0_HW_TXQ3_QID 0x0B ++#define TOE_GMAC1_SW_TXQ0_QID 0x12 ++#define TOE_GMAC1_SW_TXQ1_QID 0x13 ++#define TOE_GMAC1_SW_TXQ2_QID 0x14 ++#define TOE_GMAC1_SW_TXQ3_QID 0x15 ++#define TOE_GMAC1_SW_TXQ4_QID 0x16 ++#define TOE_GMAC1_SW_TXQ5_QID 0x17 ++#define TOE_GMAC1_HW_TXQ0_QID 0x18 ++#define TOE_GMAC1_HW_TXQ1_QID 0x19 ++#define TOE_GMAC1_HW_TXQ2_QID 0x1A ++#define TOE_GMAC1_HW_TXQ3_QID 0x1B ++#define TOE_GMAC0_DEFAULT_QID 0x20 ++#define TOE_GMAC1_DEFAULT_QID 0x21 ++#define TOE_CLASSIFICATION_QID(x) (0x22 + x) /* 0x22 ~ 0x2F */ ++#define TOE_TOE_QID(x) (0x40 + x) /* 0x40 ~ 0x7F */ ++ ++/* ++ * old info: ++ * TOE DMA Queue Size should be 2^n, n = 6...12 ++ * TOE DMA Queues are the following queue types: ++ * SW Free Queue, HW Free Queue, ++ * GMAC 0/1 SW TX Q0-5, and GMAC 0/1 HW TX Q0-5 ++ * The base address and descriptor number are configured at ++ * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004) ++ */ ++ ++#define GET_WPTR(addr) __raw_readw((addr) + 2) ++#define GET_RPTR(addr) __raw_readw((addr)) ++#define SET_WPTR(addr, data) __raw_writew((data), (addr) + 2) ++#define SET_RPTR(addr, data) __raw_writew((data), (addr)) ++#define __RWPTR_NEXT(x, mask) (((unsigned int)(x) + 1) & (mask)) ++#define __RWPTR_PREV(x, mask) (((unsigned int)(x) - 1) & (mask)) ++#define __RWPTR_DISTANCE(r, w, mask) (((unsigned int)(w) - (r)) & (mask)) ++#define __RWPTR_MASK(order) ((1 << (order)) - 1) ++#define RWPTR_NEXT(x, order) __RWPTR_NEXT((x), __RWPTR_MASK((order))) ++#define RWPTR_PREV(x, order) __RWPTR_PREV((x), __RWPTR_MASK((order))) ++#define RWPTR_DISTANCE(r, w, order) __RWPTR_DISTANCE((r), (w), \ ++ __RWPTR_MASK((order))) ++ ++/* ++ * Global registers ++ * #define TOE_GLOBAL_BASE (TOE_BASE + 0x0000) ++ * Base 0x60000000 ++ */ ++#define GLOBAL_TOE_VERSION_REG 0x0000 ++#define GLOBAL_SW_FREEQ_BASE_SIZE_REG 0x0004 ++#define GLOBAL_HW_FREEQ_BASE_SIZE_REG 0x0008 ++#define GLOBAL_DMA_SKB_SIZE_REG 0x0010 ++#define GLOBAL_SWFQ_RWPTR_REG 0x0014 ++#define GLOBAL_HWFQ_RWPTR_REG 0x0018 ++#define GLOBAL_INTERRUPT_STATUS_0_REG 0x0020 ++#define GLOBAL_INTERRUPT_ENABLE_0_REG 0x0024 ++#define GLOBAL_INTERRUPT_SELECT_0_REG 0x0028 ++#define GLOBAL_INTERRUPT_STATUS_1_REG 0x0030 ++#define GLOBAL_INTERRUPT_ENABLE_1_REG 0x0034 ++#define GLOBAL_INTERRUPT_SELECT_1_REG 0x0038 ++#define GLOBAL_INTERRUPT_STATUS_2_REG 0x0040 ++#define GLOBAL_INTERRUPT_ENABLE_2_REG 0x0044 ++#define GLOBAL_INTERRUPT_SELECT_2_REG 0x0048 ++#define GLOBAL_INTERRUPT_STATUS_3_REG 0x0050 ++#define GLOBAL_INTERRUPT_ENABLE_3_REG 0x0054 ++#define GLOBAL_INTERRUPT_SELECT_3_REG 0x0058 ++#define GLOBAL_INTERRUPT_STATUS_4_REG 0x0060 ++#define GLOBAL_INTERRUPT_ENABLE_4_REG 0x0064 ++#define GLOBAL_INTERRUPT_SELECT_4_REG 0x0068 ++#define GLOBAL_HASH_TABLE_BASE_REG 0x006C ++#define GLOBAL_QUEUE_THRESHOLD_REG 0x0070 ++ ++/* ++ * GMAC 0/1 DMA/TOE register ++ * #define TOE_GMAC0_DMA_BASE (TOE_BASE + 0x8000) ++ * #define TOE_GMAC1_DMA_BASE (TOE_BASE + 0xC000) ++ * Base 0x60008000 or 0x6000C000 ++ */ ++#define GMAC_DMA_CTRL_REG 0x0000 ++#define GMAC_TX_WEIGHTING_CTRL_0_REG 0x0004 ++#define GMAC_TX_WEIGHTING_CTRL_1_REG 0x0008 ++#define GMAC_SW_TX_QUEUE0_PTR_REG 0x000C ++#define GMAC_SW_TX_QUEUE1_PTR_REG 0x0010 ++#define GMAC_SW_TX_QUEUE2_PTR_REG 0x0014 ++#define GMAC_SW_TX_QUEUE3_PTR_REG 0x0018 ++#define GMAC_SW_TX_QUEUE4_PTR_REG 0x001C ++#define GMAC_SW_TX_QUEUE5_PTR_REG 0x0020 ++#define GMAC_SW_TX_QUEUE_PTR_REG(i) (GMAC_SW_TX_QUEUE0_PTR_REG + 4 * (i)) ++#define GMAC_HW_TX_QUEUE0_PTR_REG 0x0024 ++#define GMAC_HW_TX_QUEUE1_PTR_REG 0x0028 ++#define GMAC_HW_TX_QUEUE2_PTR_REG 0x002C ++#define GMAC_HW_TX_QUEUE3_PTR_REG 0x0030 ++#define GMAC_HW_TX_QUEUE_PTR_REG(i) (GMAC_HW_TX_QUEUE0_PTR_REG + 4 * (i)) ++#define GMAC_DMA_TX_FIRST_DESC_REG 0x0038 ++#define GMAC_DMA_TX_CURR_DESC_REG 0x003C ++#define GMAC_DMA_TX_DESC_WORD0_REG 0x0040 ++#define GMAC_DMA_TX_DESC_WORD1_REG 0x0044 ++#define GMAC_DMA_TX_DESC_WORD2_REG 0x0048 ++#define GMAC_DMA_TX_DESC_WORD3_REG 0x004C ++#define GMAC_SW_TX_QUEUE_BASE_REG 0x0050 ++#define GMAC_HW_TX_QUEUE_BASE_REG 0x0054 ++#define GMAC_DMA_RX_FIRST_DESC_REG 0x0058 ++#define GMAC_DMA_RX_CURR_DESC_REG 0x005C ++#define GMAC_DMA_RX_DESC_WORD0_REG 0x0060 ++#define GMAC_DMA_RX_DESC_WORD1_REG 0x0064 ++#define GMAC_DMA_RX_DESC_WORD2_REG 0x0068 ++#define GMAC_DMA_RX_DESC_WORD3_REG 0x006C ++#define GMAC_HASH_ENGINE_REG0 0x0070 ++#define GMAC_HASH_ENGINE_REG1 0x0074 ++/* matching rule 0 Control register 0 */ ++#define GMAC_MR0CR0 0x0078 ++#define GMAC_MR0CR1 0x007C ++#define GMAC_MR0CR2 0x0080 ++#define GMAC_MR1CR0 0x0084 ++#define GMAC_MR1CR1 0x0088 ++#define GMAC_MR1CR2 0x008C ++#define GMAC_MR2CR0 0x0090 ++#define GMAC_MR2CR1 0x0094 ++#define GMAC_MR2CR2 0x0098 ++#define GMAC_MR3CR0 0x009C ++#define GMAC_MR3CR1 0x00A0 ++#define GMAC_MR3CR2 0x00A4 ++/* Support Protocol Regsister 0 */ ++#define GMAC_SPR0 0x00A8 ++#define GMAC_SPR1 0x00AC ++#define GMAC_SPR2 0x00B0 ++#define GMAC_SPR3 0x00B4 ++#define GMAC_SPR4 0x00B8 ++#define GMAC_SPR5 0x00BC ++#define GMAC_SPR6 0x00C0 ++#define GMAC_SPR7 0x00C4 ++/* GMAC Hash/Rx/Tx AHB Weighting register */ ++#define GMAC_AHB_WEIGHT_REG 0x00C8 ++ ++/* ++ * TOE GMAC 0/1 register ++ * #define TOE_GMAC0_BASE (TOE_BASE + 0xA000) ++ * #define TOE_GMAC1_BASE (TOE_BASE + 0xE000) ++ * Base 0x6000A000 or 0x6000E000 ++ */ ++enum GMAC_REGISTER { ++ GMAC_STA_ADD0 = 0x0000, ++ GMAC_STA_ADD1 = 0x0004, ++ GMAC_STA_ADD2 = 0x0008, ++ GMAC_RX_FLTR = 0x000c, ++ GMAC_MCAST_FIL0 = 0x0010, ++ GMAC_MCAST_FIL1 = 0x0014, ++ GMAC_CONFIG0 = 0x0018, ++ GMAC_CONFIG1 = 0x001c, ++ GMAC_CONFIG2 = 0x0020, ++ GMAC_CONFIG3 = 0x0024, ++ GMAC_RESERVED = 0x0028, ++ GMAC_STATUS = 0x002c, ++ GMAC_IN_DISCARDS= 0x0030, ++ GMAC_IN_ERRORS = 0x0034, ++ GMAC_IN_MCAST = 0x0038, ++ GMAC_IN_BCAST = 0x003c, ++ GMAC_IN_MAC1 = 0x0040, /* for STA 1 MAC Address */ ++ GMAC_IN_MAC2 = 0x0044 /* for STA 2 MAC Address */ ++}; ++ ++#define RX_STATS_NUM 6 ++ ++/* ++ * DMA Queues description Ring Base Address/Size Register (offset 0x0004) ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int base_size; ++} DMA_Q_BASE_SIZE_T; ++#define DMA_Q_BASE_MASK (~0x0f) ++ ++/* ++ * DMA SKB Buffer register (offset 0x0008) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0008 { ++ unsigned int sw_skb_size : 16; /* SW Free poll SKB Size */ ++ unsigned int hw_skb_size : 16; /* HW Free poll SKB Size */ ++ } bits; ++} DMA_SKB_SIZE_T; ++ ++/* ++ * DMA SW Free Queue Read/Write Pointer Register (offset 0x000C) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_000c { ++ unsigned int rptr : 16; /* Read Ptr, RO */ ++ unsigned int wptr : 16; /* Write Ptr, RW */ ++ } bits; ++} DMA_RWPTR_T; ++ ++/* ++ * DMA HW Free Queue Read/Write Pointer Register (offset 0x0010) ++ * see DMA_RWPTR_T structure ++ */ ++ ++/* ++ * Interrupt Status Register 0 (offset 0x0020) ++ * Interrupt Mask Register 0 (offset 0x0024) ++ * Interrupt Select Register 0 (offset 0x0028) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0020 { ++ /* GMAC0 SW Tx Queue 0 EOF Interrupt */ ++ unsigned int swtq00_eof : 1; ++ unsigned int swtq01_eof : 1; ++ unsigned int swtq02_eof : 1; ++ unsigned int swtq03_eof : 1; ++ unsigned int swtq04_eof : 1; ++ unsigned int swtq05_eof : 1; ++ /* GMAC1 SW Tx Queue 0 EOF Interrupt */ ++ unsigned int swtq10_eof : 1; ++ unsigned int swtq11_eof : 1; ++ unsigned int swtq12_eof : 1; ++ unsigned int swtq13_eof : 1; ++ unsigned int swtq14_eof : 1; ++ unsigned int swtq15_eof : 1; ++ /* GMAC0 SW Tx Queue 0 Finish Interrupt */ ++ unsigned int swtq00_fin : 1; ++ unsigned int swtq01_fin : 1; ++ unsigned int swtq02_fin : 1; ++ unsigned int swtq03_fin : 1; ++ unsigned int swtq04_fin : 1; ++ unsigned int swtq05_fin : 1; ++ /* GMAC1 SW Tx Queue 0 Finish Interrupt */ ++ unsigned int swtq10_fin : 1; ++ unsigned int swtq11_fin : 1; ++ unsigned int swtq12_fin : 1; ++ unsigned int swtq13_fin : 1; ++ unsigned int swtq14_fin : 1; ++ unsigned int swtq15_fin : 1; ++ /* GMAC0 Rx Descriptor Protocol Error */ ++ unsigned int rxPerr0 : 1; ++ /* GMAC0 AHB Bus Error while Rx */ ++ unsigned int rxDerr0 : 1; ++ /* GMAC1 Rx Descriptor Protocol Error */ ++ unsigned int rxPerr1 : 1; ++ /* GMAC1 AHB Bus Error while Rx */ ++ unsigned int rxDerr1 : 1; ++ /* GMAC0 Tx Descriptor Protocol Error */ ++ unsigned int txPerr0 : 1; ++ /* GMAC0 AHB Bus Error while Tx */ ++ unsigned int txDerr0 : 1; ++ /* GMAC1 Tx Descriptor Protocol Error */ ++ unsigned int txPerr1 : 1; ++ /* GMAC1 AHB Bus Error while Tx */ ++ unsigned int txDerr1 : 1; ++ } bits; ++} INTR_REG0_T; ++ ++#define GMAC1_TXDERR_INT_BIT BIT(31) ++#define GMAC1_TXPERR_INT_BIT BIT(30) ++#define GMAC0_TXDERR_INT_BIT BIT(29) ++#define GMAC0_TXPERR_INT_BIT BIT(28) ++#define GMAC1_RXDERR_INT_BIT BIT(27) ++#define GMAC1_RXPERR_INT_BIT BIT(26) ++#define GMAC0_RXDERR_INT_BIT BIT(25) ++#define GMAC0_RXPERR_INT_BIT BIT(24) ++#define GMAC1_SWTQ15_FIN_INT_BIT BIT(23) ++#define GMAC1_SWTQ14_FIN_INT_BIT BIT(22) ++#define GMAC1_SWTQ13_FIN_INT_BIT BIT(21) ++#define GMAC1_SWTQ12_FIN_INT_BIT BIT(20) ++#define GMAC1_SWTQ11_FIN_INT_BIT BIT(19) ++#define GMAC1_SWTQ10_FIN_INT_BIT BIT(18) ++#define GMAC0_SWTQ05_FIN_INT_BIT BIT(17) ++#define GMAC0_SWTQ04_FIN_INT_BIT BIT(16) ++#define GMAC0_SWTQ03_FIN_INT_BIT BIT(15) ++#define GMAC0_SWTQ02_FIN_INT_BIT BIT(14) ++#define GMAC0_SWTQ01_FIN_INT_BIT BIT(13) ++#define GMAC0_SWTQ00_FIN_INT_BIT BIT(12) ++#define GMAC1_SWTQ15_EOF_INT_BIT BIT(11) ++#define GMAC1_SWTQ14_EOF_INT_BIT BIT(10) ++#define GMAC1_SWTQ13_EOF_INT_BIT BIT(9) ++#define GMAC1_SWTQ12_EOF_INT_BIT BIT(8) ++#define GMAC1_SWTQ11_EOF_INT_BIT BIT(7) ++#define GMAC1_SWTQ10_EOF_INT_BIT BIT(6) ++#define GMAC0_SWTQ05_EOF_INT_BIT BIT(5) ++#define GMAC0_SWTQ04_EOF_INT_BIT BIT(4) ++#define GMAC0_SWTQ03_EOF_INT_BIT BIT(3) ++#define GMAC0_SWTQ02_EOF_INT_BIT BIT(2) ++#define GMAC0_SWTQ01_EOF_INT_BIT BIT(1) ++#define GMAC0_SWTQ00_EOF_INT_BIT BIT(0) ++ ++/* ++ * Interrupt Status Register 1 (offset 0x0030) ++ * Interrupt Mask Register 1 (offset 0x0034) ++ * Interrupt Select Register 1 (offset 0x0038) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0030 { ++ unsigned int default_q0_eof : 1; /* Default Queue 0 EOF Interrupt */ ++ unsigned int default_q1_eof : 1; /* Default Queue 1 EOF Interrupt */ ++ unsigned int class_rx : 14; /* Classification Queue Rx Interrupt */ ++ unsigned int hwtq00_eof : 1; /* GMAC0 HW Tx Queue0 EOF Interrupt */ ++ unsigned int hwtq01_eof : 1; /* GMAC0 HW Tx Queue1 EOF Interrupt */ ++ unsigned int hwtq02_eof : 1; /* GMAC0 HW Tx Queue2 EOF Interrupt */ ++ unsigned int hwtq03_eof : 1; /* GMAC0 HW Tx Queue3 EOF Interrupt */ ++ unsigned int hwtq10_eof : 1; /* GMAC1 HW Tx Queue0 EOF Interrupt */ ++ unsigned int hwtq11_eof : 1; /* GMAC1 HW Tx Queue1 EOF Interrupt */ ++ unsigned int hwtq12_eof : 1; /* GMAC1 HW Tx Queue2 EOF Interrupt */ ++ unsigned int hwtq13_eof : 1; /* GMAC1 HW Tx Queue3 EOF Interrupt */ ++ unsigned int toe_iq0_intr : 1; /* TOE Interrupt Queue 0 with Interrupts */ ++ unsigned int toe_iq1_intr : 1; /* TOE Interrupt Queue 1 with Interrupts */ ++ unsigned int toe_iq2_intr : 1; /* TOE Interrupt Queue 2 with Interrupts */ ++ unsigned int toe_iq3_intr : 1; /* TOE Interrupt Queue 3 with Interrupts */ ++ unsigned int toe_iq0_full : 1; /* TOE Interrupt Queue 0 Full Interrupt */ ++ unsigned int toe_iq1_full : 1; /* TOE Interrupt Queue 1 Full Interrupt */ ++ unsigned int toe_iq2_full : 1; /* TOE Interrupt Queue 2 Full Interrupt */ ++ unsigned int toe_iq3_full : 1; /* TOE Interrupt Queue 3 Full Interrupt */ ++ } bits; ++} INTR_REG1_T; ++ ++#define TOE_IQ3_FULL_INT_BIT BIT(31) ++#define TOE_IQ2_FULL_INT_BIT BIT(30) ++#define TOE_IQ1_FULL_INT_BIT BIT(29) ++#define TOE_IQ0_FULL_INT_BIT BIT(28) ++#define TOE_IQ3_INT_BIT BIT(27) ++#define TOE_IQ2_INT_BIT BIT(26) ++#define TOE_IQ1_INT_BIT BIT(25) ++#define TOE_IQ0_INT_BIT BIT(24) ++#define GMAC1_HWTQ13_EOF_INT_BIT BIT(23) ++#define GMAC1_HWTQ12_EOF_INT_BIT BIT(22) ++#define GMAC1_HWTQ11_EOF_INT_BIT BIT(21) ++#define GMAC1_HWTQ10_EOF_INT_BIT BIT(20) ++#define GMAC0_HWTQ03_EOF_INT_BIT BIT(19) ++#define GMAC0_HWTQ02_EOF_INT_BIT BIT(18) ++#define GMAC0_HWTQ01_EOF_INT_BIT BIT(17) ++#define GMAC0_HWTQ00_EOF_INT_BIT BIT(16) ++#define CLASS_RX_INT_BIT(x) BIT((x + 2)) ++#define DEFAULT_Q1_INT_BIT BIT(1) ++#define DEFAULT_Q0_INT_BIT BIT(0) ++ ++#define TOE_IQ_INT_BITS (TOE_IQ0_INT_BIT | TOE_IQ1_INT_BIT | \ ++ TOE_IQ2_INT_BIT | TOE_IQ3_INT_BIT) ++#define TOE_IQ_FULL_BITS (TOE_IQ0_FULL_INT_BIT | TOE_IQ1_FULL_INT_BIT | \ ++ TOE_IQ2_FULL_INT_BIT | TOE_IQ3_FULL_INT_BIT) ++#define TOE_IQ_ALL_BITS (TOE_IQ_INT_BITS | TOE_IQ_FULL_BITS) ++#define TOE_CLASS_RX_INT_BITS 0xfffc ++ ++/* ++ * Interrupt Status Register 2 (offset 0x0040) ++ * Interrupt Mask Register 2 (offset 0x0044) ++ * Interrupt Select Register 2 (offset 0x0048) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0040 { ++ unsigned int toe_q0_full : 1; /* bit 0 TOE Queue 0 Full Interrupt */ ++ unsigned int toe_q1_full : 1; /* bit 1 TOE Queue 1 Full Interrupt */ ++ unsigned int toe_q2_full : 1; /* bit 2 TOE Queue 2 Full Interrupt */ ++ unsigned int toe_q3_full : 1; /* bit 3 TOE Queue 3 Full Interrupt */ ++ unsigned int toe_q4_full : 1; /* bit 4 TOE Queue 4 Full Interrupt */ ++ unsigned int toe_q5_full : 1; /* bit 5 TOE Queue 5 Full Interrupt */ ++ unsigned int toe_q6_full : 1; /* bit 6 TOE Queue 6 Full Interrupt */ ++ unsigned int toe_q7_full : 1; /* bit 7 TOE Queue 7 Full Interrupt */ ++ unsigned int toe_q8_full : 1; /* bit 8 TOE Queue 8 Full Interrupt */ ++ unsigned int toe_q9_full : 1; /* bit 9 TOE Queue 9 Full Interrupt */ ++ unsigned int toe_q10_full : 1; /* bit 10 TOE Queue 10 Full Interrupt */ ++ unsigned int toe_q11_full : 1; /* bit 11 TOE Queue 11 Full Interrupt */ ++ unsigned int toe_q12_full : 1; /* bit 12 TOE Queue 12 Full Interrupt */ ++ unsigned int toe_q13_full : 1; /* bit 13 TOE Queue 13 Full Interrupt */ ++ unsigned int toe_q14_full : 1; /* bit 14 TOE Queue 14 Full Interrupt */ ++ unsigned int toe_q15_full : 1; /* bit 15 TOE Queue 15 Full Interrupt */ ++ unsigned int toe_q16_full : 1; /* bit 16 TOE Queue 16 Full Interrupt */ ++ unsigned int toe_q17_full : 1; /* bit 17 TOE Queue 17 Full Interrupt */ ++ unsigned int toe_q18_full : 1; /* bit 18 TOE Queue 18 Full Interrupt */ ++ unsigned int toe_q19_full : 1; /* bit 19 TOE Queue 19 Full Interrupt */ ++ unsigned int toe_q20_full : 1; /* bit 20 TOE Queue 20 Full Interrupt */ ++ unsigned int toe_q21_full : 1; /* bit 21 TOE Queue 21 Full Interrupt */ ++ unsigned int toe_q22_full : 1; /* bit 22 TOE Queue 22 Full Interrupt */ ++ unsigned int toe_q23_full : 1; /* bit 23 TOE Queue 23 Full Interrupt */ ++ unsigned int toe_q24_full : 1; /* bit 24 TOE Queue 24 Full Interrupt */ ++ unsigned int toe_q25_full : 1; /* bit 25 TOE Queue 25 Full Interrupt */ ++ unsigned int toe_q26_full : 1; /* bit 26 TOE Queue 26 Full Interrupt */ ++ unsigned int toe_q27_full : 1; /* bit 27 TOE Queue 27 Full Interrupt */ ++ unsigned int toe_q28_full : 1; /* bit 28 TOE Queue 28 Full Interrupt */ ++ unsigned int toe_q29_full : 1; /* bit 29 TOE Queue 29 Full Interrupt */ ++ unsigned int toe_q30_full : 1; /* bit 30 TOE Queue 30 Full Interrupt */ ++ unsigned int toe_q31_full : 1; /* bit 31 TOE Queue 31 Full Interrupt */ ++ } bits; ++} INTR_REG2_T; ++ ++#define TOE_QL_FULL_INT_BIT(x) BIT(x) ++ ++/* ++ * Interrupt Status Register 3 (offset 0x0050) ++ * Interrupt Mask Register 3 (offset 0x0054) ++ * Interrupt Select Register 3 (offset 0x0058) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0050 { ++ unsigned int toe_q32_full : 1; /* bit 32 TOE Queue 32 Full Interrupt */ ++ unsigned int toe_q33_full : 1; /* bit 33 TOE Queue 33 Full Interrupt */ ++ unsigned int toe_q34_full : 1; /* bit 34 TOE Queue 34 Full Interrupt */ ++ unsigned int toe_q35_full : 1; /* bit 35 TOE Queue 35 Full Interrupt */ ++ unsigned int toe_q36_full : 1; /* bit 36 TOE Queue 36 Full Interrupt */ ++ unsigned int toe_q37_full : 1; /* bit 37 TOE Queue 37 Full Interrupt */ ++ unsigned int toe_q38_full : 1; /* bit 38 TOE Queue 38 Full Interrupt */ ++ unsigned int toe_q39_full : 1; /* bit 39 TOE Queue 39 Full Interrupt */ ++ unsigned int toe_q40_full : 1; /* bit 40 TOE Queue 40 Full Interrupt */ ++ unsigned int toe_q41_full : 1; /* bit 41 TOE Queue 41 Full Interrupt */ ++ unsigned int toe_q42_full : 1; /* bit 42 TOE Queue 42 Full Interrupt */ ++ unsigned int toe_q43_full : 1; /* bit 43 TOE Queue 43 Full Interrupt */ ++ unsigned int toe_q44_full : 1; /* bit 44 TOE Queue 44 Full Interrupt */ ++ unsigned int toe_q45_full : 1; /* bit 45 TOE Queue 45 Full Interrupt */ ++ unsigned int toe_q46_full : 1; /* bit 46 TOE Queue 46 Full Interrupt */ ++ unsigned int toe_q47_full : 1; /* bit 47 TOE Queue 47 Full Interrupt */ ++ unsigned int toe_q48_full : 1; /* bit 48 TOE Queue 48 Full Interrupt */ ++ unsigned int toe_q49_full : 1; /* bit 49 TOE Queue 49 Full Interrupt */ ++ unsigned int toe_q50_full : 1; /* bit 50 TOE Queue 50 Full Interrupt */ ++ unsigned int toe_q51_full : 1; /* bit 51 TOE Queue 51 Full Interrupt */ ++ unsigned int toe_q52_full : 1; /* bit 52 TOE Queue 52 Full Interrupt */ ++ unsigned int toe_q53_full : 1; /* bit 53 TOE Queue 53 Full Interrupt */ ++ unsigned int toe_q54_full : 1; /* bit 54 TOE Queue 54 Full Interrupt */ ++ unsigned int toe_q55_full : 1; /* bit 55 TOE Queue 55 Full Interrupt */ ++ unsigned int toe_q56_full : 1; /* bit 56 TOE Queue 56 Full Interrupt */ ++ unsigned int toe_q57_full : 1; /* bit 57 TOE Queue 57 Full Interrupt */ ++ unsigned int toe_q58_full : 1; /* bit 58 TOE Queue 58 Full Interrupt */ ++ unsigned int toe_q59_full : 1; /* bit 59 TOE Queue 59 Full Interrupt */ ++ unsigned int toe_q60_full : 1; /* bit 60 TOE Queue 60 Full Interrupt */ ++ unsigned int toe_q61_full : 1; /* bit 61 TOE Queue 61 Full Interrupt */ ++ unsigned int toe_q62_full : 1; /* bit 62 TOE Queue 62 Full Interrupt */ ++ unsigned int toe_q63_full : 1; /* bit 63 TOE Queue 63 Full Interrupt */ ++ } bits; ++} INTR_REG3_T; ++ ++#define TOE_QH_FULL_INT_BIT(x) BIT(x-32) ++ ++/* ++ * Interrupt Status Register 4 (offset 0x0060) ++ * Interrupt Mask Register 4 (offset 0x0064) ++ * Interrupt Select Register 4 (offset 0x0068) ++ */ ++typedef union { ++ unsigned char byte; ++ struct bit_0060 { ++ unsigned char status_changed : 1; /* Status Changed Intr for RGMII Mode */ ++ unsigned char rx_overrun : 1; /* GMAC Rx FIFO overrun interrupt */ ++ unsigned char tx_pause_off : 1; /* received pause off frame interrupt */ ++ unsigned char rx_pause_off : 1; /* received pause off frame interrupt */ ++ unsigned char tx_pause_on : 1; /* transmit pause on frame interrupt */ ++ unsigned char rx_pause_on : 1; /* received pause on frame interrupt */ ++ unsigned char cnt_full : 1; /* MIB counters half full interrupt */ ++ unsigned char reserved : 1; /* */ ++ } __packed bits; ++} __packed GMAC_INTR_T; ++ ++typedef union { ++ unsigned int bits32; ++ struct bit_0060_2 { ++ unsigned int swfq_empty : 1; /* bit 0 Software Free Queue Empty Intr. */ ++ unsigned int hwfq_empty : 1; /* bit 1 Hardware Free Queue Empty Intr. */ ++ unsigned int class_qf_int : 14; /* bit 15:2 Classification Rx Queue13-0 Full Intr. */ ++ GMAC_INTR_T gmac0; ++ GMAC_INTR_T gmac1; ++ } bits; ++} INTR_REG4_T; ++ ++#define GMAC1_RESERVED_INT_BIT BIT(31) ++#define GMAC1_MIB_INT_BIT BIT(30) ++#define GMAC1_RX_PAUSE_ON_INT_BIT BIT(29) ++#define GMAC1_TX_PAUSE_ON_INT_BIT BIT(28) ++#define GMAC1_RX_PAUSE_OFF_INT_BIT BIT(27) ++#define GMAC1_TX_PAUSE_OFF_INT_BIT BIT(26) ++#define GMAC1_RX_OVERRUN_INT_BIT BIT(25) ++#define GMAC1_STATUS_CHANGE_INT_BIT BIT(24) ++#define GMAC0_RESERVED_INT_BIT BIT(23) ++#define GMAC0_MIB_INT_BIT BIT(22) ++#define GMAC0_RX_PAUSE_ON_INT_BIT BIT(21) ++#define GMAC0_TX_PAUSE_ON_INT_BIT BIT(20) ++#define GMAC0_RX_PAUSE_OFF_INT_BIT BIT(19) ++#define GMAC0_TX_PAUSE_OFF_INT_BIT BIT(18) ++#define GMAC0_RX_OVERRUN_INT_BIT BIT(17) ++#define GMAC0_STATUS_CHANGE_INT_BIT BIT(16) ++#define CLASS_RX_FULL_INT_BIT(x) BIT((x+2)) ++#define HWFQ_EMPTY_INT_BIT BIT(1) ++#define SWFQ_EMPTY_INT_BIT BIT(0) ++ ++#define GMAC0_INT_BITS (GMAC0_RESERVED_INT_BIT | GMAC0_MIB_INT_BIT | \ ++ GMAC0_RX_PAUSE_ON_INT_BIT | GMAC0_TX_PAUSE_ON_INT_BIT | \ ++ GMAC0_RX_PAUSE_OFF_INT_BIT | GMAC0_TX_PAUSE_OFF_INT_BIT | \ ++ GMAC0_RX_OVERRUN_INT_BIT | GMAC0_STATUS_CHANGE_INT_BIT) ++#define GMAC1_INT_BITS (GMAC1_RESERVED_INT_BIT | GMAC1_MIB_INT_BIT | \ ++ GMAC1_RX_PAUSE_ON_INT_BIT | GMAC1_TX_PAUSE_ON_INT_BIT | \ ++ GMAC1_RX_PAUSE_OFF_INT_BIT | GMAC1_TX_PAUSE_OFF_INT_BIT | \ ++ GMAC1_RX_OVERRUN_INT_BIT | GMAC1_STATUS_CHANGE_INT_BIT) ++ ++#define CLASS_RX_FULL_INT_BITS 0xfffc ++ ++/* ++ * GLOBAL_QUEUE_THRESHOLD_REG (offset 0x0070) ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_0070_2 { ++ unsigned int swfq_empty : 8; /* 7:0 Software Free Queue Empty Threshold */ ++ unsigned int hwfq_empty : 8; /* 15:8 Hardware Free Queue Empty Threshold */ ++ unsigned int intrq : 8; /* 23:16 */ ++ unsigned int toe_class : 8; /* 31:24 */ ++ } bits; ++} QUEUE_THRESHOLD_T; ++ ++ ++/* ++ * GMAC DMA Control Register ++ * GMAC0 offset 0x8000 ++ * GMAC1 offset 0xC000 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8000 { ++ unsigned int td_bus : 2; /* bit 1:0 Peripheral Bus Width */ ++ unsigned int td_burst_size : 2; /* bit 3:2 TxDMA max burst size for every AHB request */ ++ unsigned int td_prot : 4; /* bit 7:4 TxDMA protection control */ ++ unsigned int rd_bus : 2; /* bit 9:8 Peripheral Bus Width */ ++ unsigned int rd_burst_size : 2; /* bit 11:10 DMA max burst size for every AHB request */ ++ unsigned int rd_prot : 4; /* bit 15:12 DMA Protection Control */ ++ unsigned int rd_insert_bytes : 2; /* bit 17:16 */ ++ unsigned int reserved : 10; /* bit 27:18 */ ++ unsigned int drop_small_ack : 1; /* bit 28 1: Drop, 0: Accept */ ++ unsigned int loopback : 1; /* bit 29 Loopback TxDMA to RxDMA */ ++ unsigned int td_enable : 1; /* bit 30 Tx DMA Enable */ ++ unsigned int rd_enable : 1; /* bit 31 Rx DMA Enable */ ++ } bits; ++} GMAC_DMA_CTRL_T; ++ ++/* ++ * GMAC Tx Weighting Control Register 0 ++ * GMAC0 offset 0x8004 ++ * GMAC1 offset 0xC004 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8004 { ++ unsigned int hw_tq0 : 6; /* bit 5:0 HW TX Queue 3 */ ++ unsigned int hw_tq1 : 6; /* bit 11:6 HW TX Queue 2 */ ++ unsigned int hw_tq2 : 6; /* bit 17:12 HW TX Queue 1 */ ++ unsigned int hw_tq3 : 6; /* bit 23:18 HW TX Queue 0 */ ++ unsigned int reserved : 8; /* bit 31:24 */ ++ } bits; ++} GMAC_TX_WCR0_T; /* Weighting Control Register 0 */ ++ ++/* ++ * GMAC Tx Weighting Control Register 1 ++ * GMAC0 offset 0x8008 ++ * GMAC1 offset 0xC008 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8008 { ++ unsigned int sw_tq0 : 5; /* bit 4:0 SW TX Queue 0 */ ++ unsigned int sw_tq1 : 5; /* bit 9:5 SW TX Queue 1 */ ++ unsigned int sw_tq2 : 5; /* bit 14:10 SW TX Queue 2 */ ++ unsigned int sw_tq3 : 5; /* bit 19:15 SW TX Queue 3 */ ++ unsigned int sw_tq4 : 5; /* bit 24:20 SW TX Queue 4 */ ++ unsigned int sw_tq5 : 5; /* bit 29:25 SW TX Queue 5 */ ++ unsigned int reserved : 2; /* bit 31:30 */ ++ } bits; ++} GMAC_TX_WCR1_T; /* Weighting Control Register 1 */ ++ ++/* ++ * Queue Read/Write Pointer ++ * GMAC SW TX Queue 0~5 Read/Write Pointer register ++ * GMAC0 offset 0x800C ~ 0x8020 ++ * GMAC1 offset 0xC00C ~ 0xC020 ++ * GMAC HW TX Queue 0~3 Read/Write Pointer register ++ * GMAC0 offset 0x8024 ~ 0x8030 ++ * GMAC1 offset 0xC024 ~ 0xC030 ++ * ++ * see DMA_RWPTR_T structure ++ */ ++ ++/* ++ * GMAC DMA Tx First Description Address Register ++ * GMAC0 offset 0x8038 ++ * GMAC1 offset 0xC038 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8038 { ++ unsigned int reserved : 3; ++ unsigned int td_busy : 1; /* bit 3 1: TxDMA busy; 0: TxDMA idle */ ++ unsigned int td_first_des_ptr : 28; /* bit 31:4 first descriptor address */ ++ } bits; ++} GMAC_TXDMA_FIRST_DESC_T; ++ ++/* ++ * GMAC DMA Tx Current Description Address Register ++ * GMAC0 offset 0x803C ++ * GMAC1 offset 0xC03C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_803C { ++ unsigned int reserved : 4; ++ unsigned int td_curr_desc_ptr : 28; /* bit 31:4 current descriptor address */ ++ } bits; ++} GMAC_TXDMA_CURR_DESC_T; ++ ++/* ++ * GMAC DMA Tx Description Word 0 Register ++ * GMAC0 offset 0x8040 ++ * GMAC1 offset 0xC040 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8040 { ++ unsigned int buffer_size : 16; /* bit 15:0 Transfer size */ ++ unsigned int desc_count : 6; /* bit 21:16 number of descriptors used for the current frame */ ++ unsigned int status_tx_ok : 1; /* bit 22 Tx Status, 1: Successful 0: Failed */ ++ unsigned int status_rvd : 6; /* bit 28:23 Tx Status, Reserved bits */ ++ unsigned int perr : 1; /* bit 29 protocol error during processing this descriptor */ ++ unsigned int derr : 1; /* bit 30 data error during processing this descriptor */ ++ unsigned int reserved : 1; /* bit 31 */ ++ } bits; ++} GMAC_TXDESC_0_T; ++ ++/* ++ * GMAC DMA Tx Description Word 1 Register ++ * GMAC0 offset 0x8044 ++ * GMAC1 offset 0xC044 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct txdesc_word1 { ++ unsigned int byte_count : 16; /* bit 15: 0 Tx Frame Byte Count */ ++ unsigned int mtu_enable : 1; /* bit 16 TSS segmentation use MTU setting */ ++ unsigned int ip_chksum : 1; /* bit 17 IPV4 Header Checksum Enable */ ++ unsigned int ipv6_enable : 1; /* bit 18 IPV6 Tx Enable */ ++ unsigned int tcp_chksum : 1; /* bit 19 TCP Checksum Enable */ ++ unsigned int udp_chksum : 1; /* bit 20 UDP Checksum Enable */ ++ unsigned int bypass_tss : 1; /* bit 21 Bypass HW offload engine */ ++ unsigned int ip_fixed_len : 1; /* bit 22 Don't update IP length field */ ++ unsigned int reserved : 9; /* bit 31:23 Tx Flag, Reserved */ ++ } bits; ++} GMAC_TXDESC_1_T; ++ ++#define TSS_IP_FIXED_LEN_BIT BIT(22) ++#define TSS_BYPASS_BIT BIT(21) ++#define TSS_UDP_CHKSUM_BIT BIT(20) ++#define TSS_TCP_CHKSUM_BIT BIT(19) ++#define TSS_IPV6_ENABLE_BIT BIT(18) ++#define TSS_IP_CHKSUM_BIT BIT(17) ++#define TSS_MTU_ENABLE_BIT BIT(16) ++ ++#define TSS_CHECKUM_ENABLE \ ++ (TSS_IP_CHKSUM_BIT|TSS_IPV6_ENABLE_BIT| \ ++ TSS_TCP_CHKSUM_BIT|TSS_UDP_CHKSUM_BIT) ++ ++/* ++ * GMAC DMA Tx Description Word 2 Register ++ * GMAC0 offset 0x8048 ++ * GMAC1 offset 0xC048 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int buf_adr; ++} GMAC_TXDESC_2_T; ++ ++/* ++ * GMAC DMA Tx Description Word 3 Register ++ * GMAC0 offset 0x804C ++ * GMAC1 offset 0xC04C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct txdesc_word3 { ++ unsigned int mtu_size : 13; /* bit 12: 0 Tx Frame Byte Count */ ++ unsigned int reserved : 16; /* bit 28:13 */ ++ unsigned int eofie : 1; /* bit 29 End of frame interrupt enable */ ++ unsigned int sof_eof : 2; /* bit 31:30 11: only one, 10: first, 01: last, 00: linking */ ++ } bits; ++} GMAC_TXDESC_3_T; ++#define SOF_EOF_BIT_MASK 0x3fffffff ++#define SOF_BIT 0x80000000 ++#define EOF_BIT 0x40000000 ++#define EOFIE_BIT BIT(29) ++#define MTU_SIZE_BIT_MASK 0x1fff ++ ++/* ++ * GMAC Tx Descriptor ++ */ ++typedef struct { ++ GMAC_TXDESC_0_T word0; ++ GMAC_TXDESC_1_T word1; ++ GMAC_TXDESC_2_T word2; ++ GMAC_TXDESC_3_T word3; ++} GMAC_TXDESC_T; ++ ++/* ++ * GMAC DMA Rx First Description Address Register ++ * GMAC0 offset 0x8058 ++ * GMAC1 offset 0xC058 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8058 { ++ unsigned int reserved : 3; /* bit 2:0 */ ++ unsigned int rd_busy : 1; /* bit 3 1-RxDMA busy; 0-RxDMA idle */ ++ unsigned int rd_first_des_ptr : 28; /* bit 31:4 first descriptor address */ ++ } bits; ++} GMAC_RXDMA_FIRST_DESC_T; ++ ++/* ++ * GMAC DMA Rx Current Description Address Register ++ * GMAC0 offset 0x805C ++ * GMAC1 offset 0xC05C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_805C { ++ unsigned int reserved : 4; /* bit 3:0 */ ++ unsigned int rd_curr_des_ptr : 28; /* bit 31:4 current descriptor address */ ++ } bits; ++} GMAC_RXDMA_CURR_DESC_T; ++ ++/* ++ * GMAC DMA Rx Description Word 0 Register ++ * GMAC0 offset 0x8060 ++ * GMAC1 offset 0xC060 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8060 { ++ unsigned int buffer_size : 16; /* bit 15:0 number of descriptors used for the current frame */ ++ unsigned int desc_count : 6; /* bit 21:16 number of descriptors used for the current frame */ ++ unsigned int status : 4; /* bit 24:22 Status of rx frame */ ++ unsigned int chksum_status : 3; /* bit 28:26 Check Sum Status */ ++ unsigned int perr : 1; /* bit 29 protocol error during processing this descriptor */ ++ unsigned int derr : 1; /* bit 30 data error during processing this descriptor */ ++ unsigned int drop : 1; /* bit 31 TOE/CIS Queue Full dropped packet to default queue */ ++ } bits; ++} GMAC_RXDESC_0_T; ++ ++#define GMAC_RXDESC_0_T_derr BIT(30) ++#define GMAC_RXDESC_0_T_perr BIT(29) ++#define GMAC_RXDESC_0_T_chksum_status(x) BIT((x+26)) ++#define GMAC_RXDESC_0_T_status(x) BIT((x+22)) ++#define GMAC_RXDESC_0_T_desc_count(x) BIT((x+16)) ++ ++#define RX_CHKSUM_IP_UDP_TCP_OK 0 ++#define RX_CHKSUM_IP_OK_ONLY 1 ++#define RX_CHKSUM_NONE 2 ++#define RX_CHKSUM_IP_ERR_UNKNOWN 4 ++#define RX_CHKSUM_IP_ERR 5 ++#define RX_CHKSUM_TCP_UDP_ERR 6 ++#define RX_CHKSUM_NUM 8 ++ ++#define RX_STATUS_GOOD_FRAME 0 ++#define RX_STATUS_TOO_LONG_GOOD_CRC 1 ++#define RX_STATUS_RUNT_FRAME 2 ++#define RX_STATUS_SFD_NOT_FOUND 3 ++#define RX_STATUS_CRC_ERROR 4 ++#define RX_STATUS_TOO_LONG_BAD_CRC 5 ++#define RX_STATUS_ALIGNMENT_ERROR 6 ++#define RX_STATUS_TOO_LONG_BAD_ALIGN 7 ++#define RX_STATUS_RX_ERR 8 ++#define RX_STATUS_DA_FILTERED 9 ++#define RX_STATUS_BUFFER_FULL 10 ++#define RX_STATUS_NUM 16 ++ ++#define RX_ERROR_LENGTH(s) \ ++ ((s) == RX_STATUS_TOO_LONG_GOOD_CRC || \ ++ (s) == RX_STATUS_TOO_LONG_BAD_CRC || \ ++ (s) == RX_STATUS_TOO_LONG_BAD_ALIGN) ++#define RX_ERROR_OVER(s) \ ++ ((s) == RX_STATUS_BUFFER_FULL) ++#define RX_ERROR_CRC(s) \ ++ ((s) == RX_STATUS_CRC_ERROR || \ ++ (s) == RX_STATUS_TOO_LONG_BAD_CRC) ++#define RX_ERROR_FRAME(s) \ ++ ((s) == RX_STATUS_ALIGNMENT_ERROR || \ ++ (s) == RX_STATUS_TOO_LONG_BAD_ALIGN) ++#define RX_ERROR_FIFO(s) \ ++ (0) ++ ++/* ++ * GMAC DMA Rx Description Word 1 Register ++ * GMAC0 offset 0x8064 ++ * GMAC1 offset 0xC064 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct rxdesc_word1 { ++ unsigned int byte_count : 16; /* bit 15: 0 Rx Frame Byte Count */ ++ unsigned int sw_id : 16; /* bit 31:16 Software ID */ ++ } bits; ++} GMAC_RXDESC_1_T; ++ ++/* ++ * GMAC DMA Rx Description Word 2 Register ++ * GMAC0 offset 0x8068 ++ * GMAC1 offset 0xC068 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int buf_adr; ++} GMAC_RXDESC_2_T; ++ ++#define RX_INSERT_NONE 0 ++#define RX_INSERT_1_BYTE 1 ++#define RX_INSERT_2_BYTE 2 ++#define RX_INSERT_3_BYTE 3 ++ ++/* ++ * GMAC DMA Rx Description Word 3 Register ++ * GMAC0 offset 0x806C ++ * GMAC1 offset 0xC06C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct rxdesc_word3 { ++ unsigned int l3_offset : 8; /* bit 7: 0 L3 data offset */ ++ unsigned int l4_offset : 8; /* bit 15: 8 L4 data offset */ ++ unsigned int l7_offset : 8; /* bit 23: 16 L7 data offset */ ++ unsigned int dup_ack : 1; /* bit 24 Duplicated ACK detected */ ++ unsigned int abnormal : 1; /* bit 25 abnormal case found */ ++ unsigned int option : 1; /* bit 26 IPV4 option or IPV6 extension header */ ++ unsigned int out_of_seq : 1; /* bit 27 Out of Sequence packet */ ++ unsigned int ctrl_flag : 1; /* bit 28 Control Flag is present */ ++ unsigned int eofie : 1; /* bit 29 End of frame interrupt enable */ ++ unsigned int sof_eof : 2; /* bit 31:30 11: only one, 10: first, 01: last, 00: linking */ ++ } bits; ++} GMAC_RXDESC_3_T; ++ ++/* ++ * GMAC Rx Descriptor ++ */ ++typedef struct { ++ GMAC_RXDESC_0_T word0; ++ GMAC_RXDESC_1_T word1; ++ GMAC_RXDESC_2_T word2; ++ GMAC_RXDESC_3_T word3; ++} GMAC_RXDESC_T; ++ ++/* ++ * GMAC Hash Engine Enable/Action Register 0 Offset Register ++ * GMAC0 offset 0x8070 ++ * GMAC1 offset 0xC070 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8070 { ++ unsigned int mr0hel : 6; /* bit 5:0 match rule 0 hash entry size */ ++ unsigned int mr0_action : 5; /* bit 10:6 Matching Rule 0 action offset */ ++ unsigned int reserved0 : 4; /* bit 14:11 */ ++ unsigned int mr0en : 1; /* bit 15 Enable Matching Rule 0 */ ++ unsigned int mr1hel : 6; /* bit 21:16 match rule 1 hash entry size */ ++ unsigned int mr1_action : 5; /* bit 26:22 Matching Rule 1 action offset */ ++ unsigned int timing : 3; /* bit 29:27 */ ++ unsigned int reserved1 : 1; /* bit 30 */ ++ unsigned int mr1en : 1; /* bit 31 Enable Matching Rule 1 */ ++ } bits; ++} GMAC_HASH_ENABLE_REG0_T; ++ ++/* ++ * GMAC Hash Engine Enable/Action Register 1 Offset Register ++ * GMAC0 offset 0x8074 ++ * GMAC1 offset 0xC074 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8074 { ++ unsigned int mr2hel : 6; /* bit 5:0 match rule 2 hash entry size */ ++ unsigned int mr2_action : 5; /* bit 10:6 Matching Rule 2 action offset */ ++ unsigned int reserved2 : 4; /* bit 14:11 */ ++ unsigned int mr2en : 1; /* bit 15 Enable Matching Rule 2 */ ++ unsigned int mr3hel : 6; /* bit 21:16 match rule 3 hash entry size */ ++ unsigned int mr3_action : 5; /* bit 26:22 Matching Rule 3 action offset */ ++ unsigned int reserved1 : 4; /* bit 30:27 */ ++ unsigned int mr3en : 1; /* bit 31 Enable Matching Rule 3 */ ++ } bits; ++} GMAC_HASH_ENABLE_REG1_T; ++ ++/* ++ * GMAC Matching Rule Control Register 0 ++ * GMAC0 offset 0x8078 ++ * GMAC1 offset 0xC078 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8078 { ++ unsigned int sprx : 8; /* bit 7:0 Support Protocol Register 7:0 */ ++ unsigned int reserved2 : 4; /* bit 11:8 */ ++ unsigned int tos_traffic : 1; /* bit 12 IPV4 TOS or IPV6 Traffice Class */ ++ unsigned int flow_lable : 1; /* bit 13 IPV6 Flow label */ ++ unsigned int ip_hdr_len : 1; /* bit 14 IPV4 Header length */ ++ unsigned int ip_version : 1; /* bit 15 0: IPV4, 1: IPV6 */ ++ unsigned int reserved1 : 3; /* bit 18:16 */ ++ unsigned int pppoe : 1; /* bit 19 PPPoE Session ID enable */ ++ unsigned int vlan : 1; /* bit 20 VLAN ID enable */ ++ unsigned int ether_type : 1; /* bit 21 Ethernet type enable */ ++ unsigned int sa : 1; /* bit 22 MAC SA enable */ ++ unsigned int da : 1; /* bit 23 MAC DA enable */ ++ unsigned int priority : 3; /* bit 26:24 priority if multi-rules matched */ ++ unsigned int port : 1; /* bit 27 PORT ID matching enable */ ++ unsigned int l7 : 1; /* bit 28 L7 matching enable */ ++ unsigned int l4 : 1; /* bit 29 L4 matching enable */ ++ unsigned int l3 : 1; /* bit 30 L3 matching enable */ ++ unsigned int l2 : 1; /* bit 31 L2 matching enable */ ++ } bits; ++} GMAC_MRxCR0_T; ++ ++#define MR_L2_BIT BIT(31) ++#define MR_L3_BIT BIT(30) ++#define MR_L4_BIT BIT(29) ++#define MR_L7_BIT BIT(28) ++#define MR_PORT_BIT BIT(27) ++#define MR_PRIORITY_BIT BIT(26) ++#define MR_DA_BIT BIT(23) ++#define MR_SA_BIT BIT(22) ++#define MR_ETHER_TYPE_BIT BIT(21) ++#define MR_VLAN_BIT BIT(20) ++#define MR_PPPOE_BIT BIT(19) ++#define MR_IP_VER_BIT BIT(15) ++#define MR_IP_HDR_LEN_BIT BIT(14) ++#define MR_FLOW_LABLE_BIT BIT(13) ++#define MR_TOS_TRAFFIC_BIT BIT(12) ++#define MR_SPR_BIT(x) BIT(x) ++#define MR_SPR_BITS 0xff ++ ++/* ++ * GMAC Matching Rule Control Register 1 ++ * GMAC0 offset 0x807C ++ * GMAC1 offset 0xC07C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_807C { ++ unsigned int l4_byte0_15 : 16; /* bit 15: 0 */ ++ unsigned int dip_netmask : 7; /* bit 22:16 Dest IP net mask, number of mask bits */ ++ unsigned int dip : 1; /* bit 23 Dest IP */ ++ unsigned int sip_netmask : 7; /* bit 30:24 Srce IP net mask, number of mask bits */ ++ unsigned int sip : 1; /* bit 31 Srce IP */ ++ } bits; ++} GMAC_MRxCR1_T; ++ ++/* ++ * GMAC Matching Rule Control Register 2 ++ * GMAC0 offset 0x8080 ++ * GMAC1 offset 0xC080 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_8080 { ++ unsigned int l7_byte0_23 : 24; /* bit 23:0 */ ++ unsigned int l4_byte16_24 : 8; /* bit 31: 24 */ ++ } bits; ++} GMAC_MRxCR2_T; ++ ++/* ++ * GMAC Support registers ++ * GMAC0 offset 0x80A8 ++ * GMAC1 offset 0xC0A8 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_80A8 { ++ unsigned int protocol : 8; /* bit 7:0 Supported protocol */ ++ unsigned int swap : 3; /* bit 10:8 Swap */ ++ unsigned int reserved : 21; /* bit 31:11 */ ++ } bits; ++} GMAC_SPR_T; ++ ++/* ++ * GMAC_AHB_WEIGHT registers ++ * GMAC0 offset 0x80C8 ++ * GMAC1 offset 0xC0C8 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_80C8 { ++ unsigned int hash_weight : 5; /* 4:0 */ ++ unsigned int rx_weight : 5; /* 9:5 */ ++ unsigned int tx_weight : 5; /* 14:10 */ ++ unsigned int pre_req : 5; /* 19:15 Rx Data Pre Request FIFO Threshold */ ++ unsigned int tqDV_threshold : 5; /* 24:20 DMA TqCtrl to Start tqDV FIFO Threshold */ ++ unsigned int reserved : 7; /* 31:25 */ ++ } bits; ++} GMAC_AHB_WEIGHT_T; ++ ++/* ++ * the register structure of GMAC ++ */ ++ ++/* ++ * GMAC RX FLTR ++ * GMAC0 Offset 0xA00C ++ * GMAC1 Offset 0xE00C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_000c { ++ unsigned int unicast : 1; /* enable receive of unicast frames that are sent to STA address */ ++ unsigned int multicast : 1; /* enable receive of multicast frames that pass multicast filter */ ++ unsigned int broadcast : 1; /* enable receive of broadcast frames */ ++ unsigned int promiscuous : 1; /* enable receive of all frames */ ++ unsigned int error : 1; /* enable receive of all error frames */ ++ unsigned int : 27; ++ } bits; ++} GMAC_RX_FLTR_T; ++ ++/* ++ * GMAC Configuration 0 ++ * GMAC0 Offset 0xA018 ++ * GMAC1 Offset 0xE018 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_0018 { ++ unsigned int dis_tx : 1; /* 0: disable transmit */ ++ unsigned int dis_rx : 1; /* 1: disable receive */ ++ unsigned int loop_back : 1; /* 2: transmit data loopback enable */ ++ unsigned int flow_ctrl : 1; /* 3: flow control also trigged by Rx queues */ ++ unsigned int adj_ifg : 4; /* 4-7: adjust IFG from 96+/-56 */ ++ unsigned int max_len : 3; /* 8-10 maximum receive frame length allowed */ ++ unsigned int dis_bkoff : 1; /* 11: disable back-off function */ ++ unsigned int dis_col : 1; /* 12: disable 16 collisions abort function */ ++ unsigned int sim_test : 1; /* 13: speed up timers in simulation */ ++ unsigned int rx_fc_en : 1; /* 14: RX flow control enable */ ++ unsigned int tx_fc_en : 1; /* 15: TX flow control enable */ ++ unsigned int rgmii_en : 1; /* 16: RGMII in-band status enable */ ++ unsigned int ipv4_rx_chksum : 1; /* 17: IPv4 RX Checksum enable */ ++ unsigned int ipv6_rx_chksum : 1; /* 18: IPv6 RX Checksum enable */ ++ unsigned int rx_tag_remove : 1; /* 19: Remove Rx VLAN tag */ ++ unsigned int rgmm_edge : 1; /* 20 */ ++ unsigned int rxc_inv : 1; /* 21 */ ++ unsigned int ipv6_exthdr_order : 1; /* 22 */ ++ unsigned int rx_err_detect : 1; /* 23 */ ++ unsigned int port0_chk_hwq : 1; /* 24 */ ++ unsigned int port1_chk_hwq : 1; /* 25 */ ++ unsigned int port0_chk_toeq : 1; /* 26 */ ++ unsigned int port1_chk_toeq : 1; /* 27 */ ++ unsigned int port0_chk_classq : 1; /* 28 */ ++ unsigned int port1_chk_classq : 1; /* 29 */ ++ unsigned int reserved : 2; /* 31 */ ++ } bits; ++} GMAC_CONFIG0_T; ++ ++#define CONFIG0_TX_RX_DISABLE (BIT(1)|BIT(0)) ++#define CONFIG0_RX_CHKSUM (BIT(18)|BIT(17)) ++#define CONFIG0_FLOW_RX (BIT(14)) ++#define CONFIG0_FLOW_TX (BIT(15)) ++#define CONFIG0_FLOW_TX_RX (BIT(14)|BIT(15)) ++#define CONFIG0_FLOW_CTL (BIT(14)|BIT(15)) ++ ++#define CONFIG0_MAXLEN_SHIFT 8 ++#define CONFIG0_MAXLEN_MASK (7 << CONFIG0_MAXLEN_SHIFT) ++#define CONFIG0_MAXLEN_1536 0 ++#define CONFIG0_MAXLEN_1518 1 ++#define CONFIG0_MAXLEN_1522 2 ++#define CONFIG0_MAXLEN_1542 3 ++#define CONFIG0_MAXLEN_9k 4 /* 9212 */ ++#define CONFIG0_MAXLEN_10k 5 /* 10236 */ ++#define CONFIG0_MAXLEN_1518__6 6 ++#define CONFIG0_MAXLEN_1518__7 7 ++ ++/* ++ * GMAC Configuration 1 ++ * GMAC0 Offset 0xA01C ++ * GMAC1 Offset 0xE01C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_001c { ++ unsigned int set_threshold : 8; /* flow control set threshold */ ++ unsigned int rel_threshold : 8; /* flow control release threshold */ ++ unsigned int reserved : 16; ++ } bits; ++} GMAC_CONFIG1_T; ++ ++#define GMAC_FLOWCTRL_SET_MAX 32 ++#define GMAC_FLOWCTRL_SET_MIN 0 ++#define GMAC_FLOWCTRL_RELEASE_MAX 32 ++#define GMAC_FLOWCTRL_RELEASE_MIN 0 ++ ++/* ++ * GMAC Configuration 2 ++ * GMAC0 Offset 0xA020 ++ * GMAC1 Offset 0xE020 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_0020 { ++ unsigned int set_threshold : 16; /* flow control set threshold */ ++ unsigned int rel_threshold : 16; /* flow control release threshold */ ++ } bits; ++} GMAC_CONFIG2_T; ++ ++/* ++ * GMAC Configuration 3 ++ * GMAC0 Offset 0xA024 ++ * GMAC1 Offset 0xE024 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_0024 { ++ unsigned int set_threshold : 16; /* flow control set threshold */ ++ unsigned int rel_threshold : 16; /* flow control release threshold */ ++ } bits; ++} GMAC_CONFIG3_T; ++ ++ ++/* ++ * GMAC STATUS ++ * GMAC0 Offset 0xA02C ++ * GMAC1 Offset 0xE02C ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit1_002c { ++ unsigned int link : 1; /* link status */ ++ unsigned int speed : 2; /* link speed(00->2.5M 01->25M 10->125M) */ ++ unsigned int duplex : 1; /* duplex mode */ ++ unsigned int reserved : 1; ++ unsigned int mii_rmii : 2; /* PHY interface type */ ++ unsigned int : 25; ++ } bits; ++} GMAC_STATUS_T; ++ ++#define GMAC_SPEED_10 0 ++#define GMAC_SPEED_100 1 ++#define GMAC_SPEED_1000 2 ++ ++#define GMAC_PHY_MII 0 ++#define GMAC_PHY_GMII 1 ++#define GMAC_PHY_RGMII_100_10 2 ++#define GMAC_PHY_RGMII_1000 3 ++ ++/* ++ * Queue Header ++ * (1) TOE Queue Header ++ * (2) Non-TOE Queue Header ++ * (3) Interrupt Queue Header ++ * ++ * memory Layout ++ * TOE Queue Header ++ * 0x60003000 +---------------------------+ 0x0000 ++ * | TOE Queue 0 Header | ++ * | 8 * 4 Bytes | ++ * +---------------------------+ 0x0020 ++ * | TOE Queue 1 Header | ++ * | 8 * 4 Bytes | ++ * +---------------------------+ 0x0040 ++ * | ...... | ++ * | | ++ * +---------------------------+ ++ * ++ * Non TOE Queue Header ++ * 0x60002000 +---------------------------+ 0x0000 ++ * | Default Queue 0 Header | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ 0x0008 ++ * | Default Queue 1 Header | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ 0x0010 ++ * | Classification Queue 0 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ ++ * | Classification Queue 1 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ (n * 8 + 0x10) ++ * | ... | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ (13 * 8 + 0x10) ++ * | Classification Queue 13 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ 0x80 ++ * | Interrupt Queue 0 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ ++ * | Interrupt Queue 1 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ ++ * | Interrupt Queue 2 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ ++ * | Interrupt Queue 3 | ++ * | 2 * 4 Bytes | ++ * +---------------------------+ ++ * ++ */ ++#define TOE_QUEUE_HDR_ADDR(n) (TOE_TOE_QUE_HDR_BASE + n * 32) ++#define TOE_Q_HDR_AREA_END (TOE_QUEUE_HDR_ADDR(TOE_TOE_QUEUE_MAX + 1)) ++#define TOE_DEFAULT_Q_HDR_BASE(x) (TOE_NONTOE_QUE_HDR_BASE + 0x08 * (x)) ++#define TOE_CLASS_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x10) ++#define TOE_INTR_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x80) ++#define INTERRUPT_QUEUE_HDR_ADDR(n) (TOE_INTR_Q_HDR_BASE + n * 8) ++#define NONTOE_Q_HDR_AREA_END (INTERRUPT_QUEUE_HDR_ADDR(TOE_INTR_QUEUE_MAX + 1)) ++/* ++ * TOE Queue Header Word 0 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int base_size; ++} TOE_QHDR0_T; ++ ++#define TOE_QHDR0_BASE_MASK (~0x0f) ++ ++/* ++ * TOE Queue Header Word 1 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_qhdr1 { ++ unsigned int rptr : 16; /* bit 15:0 */ ++ unsigned int wptr : 16; /* bit 31:16 */ ++ } bits; ++} TOE_QHDR1_T; ++ ++/* ++ * TOE Queue Header Word 2 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_qhdr2 { ++ unsigned int TotalPktSize : 17; /* bit 16: 0 Total packet size */ ++ unsigned int reserved : 7; /* bit 23:17 */ ++ unsigned int dack : 1; /* bit 24 1: Duplicated ACK */ ++ unsigned int abn : 1; /* bit 25 1: Abnormal case Found */ ++ unsigned int tcp_opt : 1; /* bit 26 1: Have TCP option */ ++ unsigned int ip_opt : 1; /* bit 27 1: have IPV4 option or IPV6 Extension header */ ++ unsigned int sat : 1; /* bit 28 1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold */ ++ unsigned int osq : 1; /* bit 29 1: out of sequence */ ++ unsigned int ctl : 1; /* bit 30 1: have control flag bits (except ack) */ ++ unsigned int usd : 1; /* bit 31 0: if no data assembled yet */ ++ } bits; ++} TOE_QHDR2_T; ++ ++/* ++ * TOE Queue Header Word 3 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int seq_num; ++} TOE_QHDR3_T; ++ ++/* ++ * TOE Queue Header Word 4 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int ack_num; ++} TOE_QHDR4_T; ++ ++/* ++ * TOE Queue Header Word 5 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_qhdr5 { ++ unsigned int AckCnt : 16; /* bit 15:0 */ ++ unsigned int SeqCnt : 16; /* bit 31:16 */ ++ } bits; ++} TOE_QHDR5_T; ++ ++/* ++ * TOE Queue Header Word 6 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_qhdr6 { ++ unsigned int WinSize : 16; /* bit 15:0 */ ++ unsigned int iq_num : 2; /* bit 17:16 */ ++ unsigned int MaxPktSize : 14; /* bit 31:18 */ ++ } bits; ++} TOE_QHDR6_T; ++ ++/* ++ * TOE Queue Header Word 7 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_qhdr7 { ++ unsigned int AckThreshold : 16; /* bit 15:0 */ ++ unsigned int SeqThreshold : 16; /* bit 31:16 */ ++ } bits; ++} TOE_QHDR7_T; ++ ++/* ++ * TOE Queue Header ++ */ ++typedef struct { ++ TOE_QHDR0_T word0; ++ TOE_QHDR1_T word1; ++ TOE_QHDR2_T word2; ++ TOE_QHDR3_T word3; ++ TOE_QHDR4_T word4; ++ TOE_QHDR5_T word5; ++ TOE_QHDR6_T word6; ++ TOE_QHDR7_T word7; ++} TOE_QHDR_T; ++ ++/* ++ * NONTOE Queue Header Word 0 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int base_size; ++} NONTOE_QHDR0_T; ++ ++#define NONTOE_QHDR0_BASE_MASK (~0x0f) ++ ++/* ++ * NONTOE Queue Header Word 1 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_nonqhdr1 { ++ unsigned int rptr : 16; /* bit 15:0 */ ++ unsigned int wptr : 16; /* bit 31:16 */ ++ } bits; ++} NONTOE_QHDR1_T; ++ ++/* ++ * Non-TOE Queue Header ++ */ ++typedef struct { ++ NONTOE_QHDR0_T word0; ++ NONTOE_QHDR1_T word1; ++} NONTOE_QHDR_T; ++ ++/* ++ * Interrupt Queue Header Word 0 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_intrqhdr0 { ++ unsigned int win_size : 16; /* bit 15:0 Descriptor Ring Size */ ++ unsigned int wptr : 16; /* bit 31:16 Write Pointer where hw stopped */ ++ } bits; ++} INTR_QHDR0_T; ++ ++/* ++ * Interrupt Queue Header Word 1 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_intrqhdr1 { ++ unsigned int TotalPktSize : 17; /* bit 16: 0 Total packet size */ ++ unsigned int tcp_qid : 8; /* bit 24:17 TCP Queue ID */ ++ unsigned int dack : 1; /* bit 25 1: Duplicated ACK */ ++ unsigned int abn : 1; /* bit 26 1: Abnormal case Found */ ++ unsigned int tcp_opt : 1; /* bit 27 1: Have TCP option */ ++ unsigned int ip_opt : 1; /* bit 28 1: have IPV4 option or IPV6 Extension header */ ++ unsigned int sat : 1; /* bit 29 1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold */ ++ unsigned int osq : 1; /* bit 30 1: out of sequence */ ++ unsigned int ctl : 1; /* bit 31 1: have control flag bits (except ack) */ ++ } bits; ++} INTR_QHDR1_T; ++ ++/* ++ * Interrupt Queue Header Word 2 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int seq_num; ++} INTR_QHDR2_T; ++ ++/* ++ * Interrupt Queue Header Word 3 ++ */ ++typedef union { ++ unsigned int bits32; ++ unsigned int ack_num; ++} INTR_QHDR3_T; ++ ++/* ++ * Interrupt Queue Header Word 4 ++ */ ++typedef union { ++ unsigned int bits32; ++ struct bit_intrqhdr4 { ++ unsigned int AckCnt : 16; /* bit 15:0 Ack# change since last ack# intr. */ ++ unsigned int SeqCnt : 16; /* bit 31:16 Seq# change since last seq# intr. */ ++ } bits; ++} INTR_QHDR4_T; ++ ++/* ++ * Interrupt Queue Header ++ */ ++typedef struct { ++ INTR_QHDR0_T word0; ++ INTR_QHDR1_T word1; ++ INTR_QHDR2_T word2; ++ INTR_QHDR3_T word3; ++ INTR_QHDR4_T word4; ++ unsigned int word5; ++ unsigned int word6; ++ unsigned int word7; ++} INTR_QHDR_T; ++ ++#endif /* _GMAC_SL351x_H */ |