diff --git a/target/linux/gemini/config-3.10 b/target/linux/gemini/config-3.10 index 36f39f0968..a0ff34cd43 100644 --- a/target/linux/gemini/config-3.10 +++ b/target/linux/gemini/config-3.10 @@ -43,7 +43,7 @@ CONFIG_DMADEVICES=y CONFIG_DNOTIFY=y CONFIG_FRAME_POINTER=y CONFIG_GEMINI_MEM_SWAP=y -CONFIG_GEMINI_NET_ENGINE_GMAC=y +CONFIG_GEMINI_SL351X=y CONFIG_GEMINI_WATCHDOG=y CONFIG_GENERIC_ATOMIC64=y CONFIG_GENERIC_BUG=y @@ -124,6 +124,7 @@ CONFIG_NEED_DMA_MAP_STATE=y CONFIG_NEED_KUSER_HELPERS=y CONFIG_NEED_MACH_GPIO_H=y CONFIG_NEED_PER_CPU_KM=y +CONFIG_NET_VENDOR_GEMINI=y CONFIG_OLD_SIGACTION=y CONFIG_OLD_SIGSUSPEND3=y CONFIG_PAGEFLAGS_EXTENDED=y diff --git a/target/linux/gemini/patches-3.10/120-net-add-gemini-gmac-driver.patch b/target/linux/gemini/patches-3.10/120-net-add-gemini-gmac-driver.patch index 8801894f7e..07abb8d747 100644 --- a/target/linux/gemini/patches-3.10/120-net-add-gemini-gmac-driver.patch +++ b/target/linux/gemini/patches-3.10/120-net-add-gemini-gmac-driver.patch @@ -4,15 +4,15 @@ +/* + * Gemini GMAC specific defines + * -+ * Copyright (C) 2008, Paulius Zaleckas ++ * Copyright (C) 2008, Paulius Zaleckas + * + * 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 __MACH_GMAC_H__ -+#define __MACH_GMAC_H__ ++#ifndef __NET_GEMINI_PLATFORM_H__ ++#define __NET_GEMINI_PLATFORM_H__ + +#include + @@ -21,1065 +21,443 @@ + phy_interface_t interface[2]; +}; + -+#endif /* __MACH_GMAC_H__ */ ---- /dev/null -+++ b/drivers/net/gemini_negmac/gm_gmac.c -@@ -0,0 +1,1359 @@ ++#endif /* __NET_GEMINI_PLATFORM_H__ */ +--- a/arch/arm/mach-gemini/common.h 2011-04-19 03:05:29.446367900 +0200 ++++ b/arch/arm/mach-gemini/common.h 2011-04-19 03:07:02.191154293 +0200 +@@ -13,6 +13,7 @@ + #define __GEMINI_COMMON_H__ + + struct mtd_partition; ++struct gemini_gmac_platform_data; + + extern void gemini_map_io(void); + extern void gemini_init_irq(void); +@@ -28,5 +28,6 @@ + extern int platform_register_pwc(void); + extern int platform_register_pata(unsigned int i); + extern int platform_register_watchdog(void); ++extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata); + + #endif /* __GEMINI_COMMON_H__ */ +--- a/arch/arm/mach-gemini/devices.c 2011-04-21 13:01:53.578121892 +0200 ++++ b/arch/arm/mach-gemini/devices.c 2011-04-21 13:14:27.643158445 +0200 +@@ -17,6 +17,7 @@ + #include + #include + #include ++#include + #include "common.h" + + static struct plat_serial8250_port serial_platform_data[] = { +@@ -134,3 +134,56 @@ + { + 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 2012-01-25 22:19:43.633736456 +0100 ++++ b/drivers/net/ethernet/Kconfig 2012-01-25 22:20:28.582730742 +0100 +@@ -52,6 +52,7 @@ + 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/hp/Kconfig" + source "drivers/net/ethernet/ibm/Kconfig" + source "drivers/net/ethernet/intel/Kconfig" +--- a/drivers/net/ethernet/Makefile 2012-01-27 01:37:10.839114389 +0100 ++++ b/drivers/net/ethernet/Makefile 2012-01-27 01:39:06.102105027 +0100 +@@ -27,6 +27,7 @@ + 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-$(CONFIG_NET_VENDOR_HP) += hp/ + obj-$(CONFIG_NET_VENDOR_IBM) += ibm/ + obj-$(CONFIG_NET_VENDOR_INTEL) += intel/ +--- /dev/null 2012-01-23 21:36:48.249769447 +0100 ++++ b/drivers/net/ethernet/gemini/Kconfig 2012-01-25 22:16:44.285740226 +0100 +@@ -0,0 +1,31 @@ ++# ++# Gemini device configuration ++# ++ ++config NET_VENDOR_GEMINI ++ bool "Cortina Gemini devices" ++ default y ++ depends on ARCH_GEMINI ++ ---help--- ++ If you have a network (Ethernet) card belonging to this class, say Y ++ and read the Ethernet-HOWTO, available from ++ . ++ ++ Note that the answer to this question doesn't directly affect the ++ kernel: saying N will just cause the configurator to skip all ++ the questions about D-Link devices. If you say Y, you will be asked for ++ your specific card in the following questions. ++ ++if NET_VENDOR_GEMINI ++ ++config GEMINI_SL351X ++ tristate "StorLink SL351x Gigabit Ethernet support" ++ depends on ARCH_GEMINI ++ select PHYLIB ++ select MDIO_BITBANG ++ select MDIO_GPIO ++ select CRC32 ++ ---help--- ++ This driver supports StorLink SL351x (Gemini) dual Gigabit Ethernet. ++ ++endif # NET_VENDOR_GEMINI +--- /dev/null 2012-01-23 21:36:48.249769447 +0100 ++++ b/drivers/net/ethernet/gemini/Makefile 2012-01-25 22:17:29.698741496 +0100 +@@ -0,0 +1,5 @@ ++# ++# Makefile for the Cortina Gemini network device drivers. ++# ++ ++obj-$(CONFIG_GEMINI_SL351X) += sl351x.o +--- /dev/null 2012-01-23 21:36:48.249769447 +0100 ++++ b/drivers/net/ethernet/gemini/sl351x.c 2012-01-27 17:09:51.000000000 +0100 +@@ -0,0 +1,2340 @@ +/* -+ * Ethernet device driver for Gemini SoC. ++ * Ethernet device driver for Gemini SoC (SL351x GMAC). + * -+ * Copyright (C) 2006, Storlink, Corp. -+ * Copyright (C) 2008-2009, Paulius Zaleckas ++ * Copyright (C) 2011, Tobias Waldvogel ++ * ++ * Based on work by Michał Mirosław and ++ * Paulius Zaleckas and ++ * Giuseppe De Robertis 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 +#include -+#include -+#include -+#include -+#include -+#include +#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include ++ ++#include ++#include ++#include ++#include +#include -+#include -+#include -+#include -+#include -+#include -+#include ++ ++#include ++#include ++#include +#include ++#include ++#include ++#include ++#include ++#include ++ +#include +#include -+#include -+#include ++#include ++ ++#include ++#include ++ +#include ++#include "sl351x_hw.h" + -+#include "gm_gmac.h" ++#define DRV_NAME "gmac-gemini" ++#define DRV_VERSION "1.0" + -+/* #define GMAX_TX_INTR_DISABLED */ -+/* #define DO_HW_CHKSUM */ -+/* #define ENABLE_TSO */ -+#define GMAC_USE_TXQ0 -+/* #define GMAC_LEN_1_2_ISSUE */ ++#define HSIZE_8 0b00 ++#define HSIZE_16 0b01 ++#define HSIZE_32 0b10 + -+#define DEFAULT_RXQ_MAX_CNT 256 ++#define HBURST_SINGLE 0b00 ++#define HBURST_INCR 0b01 ++#define HBURST_INCR4 0b10 ++#define HBURST_INCR8 0b11 + -+/* define chip information */ -+#define DRV_VERSION "0.2" -+#define SL351x_DRIVER_NAME "Gemini Ethernet driver " DRV_VERSION ++#define HPROT_DATA_CACHE BIT(0) ++#define HPROT_PRIVILIGED BIT(1) ++#define HPROT_BUFFERABLE BIT(2) ++#define HPROT_CACHABLE BIT(3) + -+#ifdef GMAC_LEN_1_2_ISSUE -+ #define _DEBUG_PREFETCH_NUM 256 -+static int _debug_prefetch_cnt; -+static char _debug_prefetch_buf[_DEBUG_PREFETCH_NUM][4] __attribute__((aligned(4))); -+#endif ++#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 + -+static inline void gmac_write_reg(void __iomem *base, unsigned int offset, -+ unsigned int data, unsigned int bit_mask) -+{ -+ unsigned int reg_val; ++#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) + -+ reg_val = (__raw_readl(base + offset) & (~bit_mask)) | (data & bit_mask); -+ __raw_writel(reg_val, base + offset); -+} ++#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) + -+/*---------------------------------------------------------------------- -+* toe_init_free_queue -+* (1) Initialize the Free Queue Descriptor Base Address & size -+* Register: TOE_GLOBAL_BASE + 0x0004 -+* (2) Initialize DMA Read/Write pointer for -+* SW Free Queue and HW Free Queue -+* (3) Initialize DMA Descriptors for -+* SW Free Queue and HW Free Queue, -+*----------------------------------------------------------------------*/ -+static void toe_init_free_queue(struct toe_private *toe) -+{ -+ int i; -+ DMA_RWPTR_T rwptr_reg; -+ void *desc_buf; -+ GMAC_RXDESC_T *sw_desc_ptr; -+ struct sk_buff *skb; ++MODULE_AUTHOR("Tobias Waldvogel"); ++MODULE_DESCRIPTION("StorLink SL351x (Gemini) ethernet driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" DRV_NAME); + -+ desc_buf = dma_alloc_coherent(toe->dev, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T), -+ &toe->sw_freeq_desc_base_dma, GFP_KERNEL); -+ sw_desc_ptr = (GMAC_RXDESC_T *)desc_buf; -+ if (!desc_buf) { -+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__); -+ return; -+ } -+ memset(desc_buf, 0, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T)); ++struct toe_private { ++ void __iomem *iomem; ++ spinlock_t irq_lock; + -+ /* DMA Queue Base & Size */ -+ __raw_writel((toe->sw_freeq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_SW_FREEQ_DESC_POWER, -+ toe->global_base + GLOBAL_SW_FREEQ_BASE_SIZE_REG); ++ struct net_device *netdev[2]; ++ __le32 mac_addr[2][3]; + -+ /* init descriptor base */ -+ toe->swfq_desc_base = (unsigned int)desc_buf; ++ struct device *dev; ++ int irq; + -+ /* SW Free Queue Descriptors */ -+ for (i = 0; i < TOE_SW_FREEQ_DESC_NUM; i++) { -+ sw_desc_ptr->word0.bits.buffer_size = SW_RX_BUF_SIZE; -+ skb = dev_alloc_skb(SW_RX_BUF_SIZE); /* allocate socket buffer */ -+ if (!skb) { -+ dev_err(toe->dev, "%s::skb buffer allocation fail\n", __func__); -+ return; -+ } -+ REG32(skb->data) = (unsigned int)skb; -+ skb_reserve(skb, SKB_RESERVE_BYTES); -+ sw_desc_ptr->word2.buf_adr = dma_map_single(toe->dev, skb->data, -+ SW_RX_BUF_SIZE - SKB_RESERVE_BYTES, -+ DMA_FROM_DEVICE); -+ sw_desc_ptr++; -+ } ++ 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; ++}; + -+ dma_sync_single_for_device(toe->dev, toe->sw_freeq_desc_base_dma, -+ TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T), -+ DMA_TO_DEVICE); ++struct gmac_txq { ++ GMAC_TXDESC_T *ring; ++ struct sk_buff **skb; ++ unsigned int cptr; ++ unsigned int noirq_packets; ++}; + -+ /* SW Free Queue Read/Write Pointer */ -+ rwptr_reg.bits.wptr = TOE_SW_FREEQ_DESC_NUM - 1; -+ rwptr_reg.bits.rptr = 0; -+ __raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_SWFQ_RWPTR_REG); ++struct gmac_private { ++ unsigned int num; ++ struct toe_private *toe; ++ void __iomem *ctl_iomem; ++ void __iomem *dma_iomem; + -+ /* DMA Queue Base & Size */ -+ __raw_writel(TOE_HW_FREEQ_DESC_POWER, -+ toe->global_base + GLOBAL_HW_FREEQ_BASE_SIZE_REG); -+ rwptr_reg.bits.wptr = TOE_HW_FREEQ_DESC_NUM - 1; -+ rwptr_reg.bits.rptr = 0; -+ __raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_HWFQ_RWPTR_REG); -+} ++ void __iomem *rxq_rwptr; ++ GMAC_RXDESC_T *rxq_ring; ++ unsigned int rxq_order; + -+/*---------------------------------------------------------------------- -+* toe_init_swtx_queue -+* (2) Initialize the GMAC 0/1 SW TXQ Queue Descriptor Base Address & sizeup -+* GMAC_SW_TX_QUEUE_BASE_REG(0x0050) -+* (2) Initialize DMA Read/Write pointer for -+* GMAC 0/1 SW TX Q0-5 -+*----------------------------------------------------------------------*/ -+static void toe_init_swtx_queue(struct net_device *dev) -+{ -+ int i; -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ DMA_RWPTR_T rwptr_reg; -+ void __iomem *rwptr_addr; -+ void *desc_buf; -+ unsigned int offset; ++ 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; + -+ desc_buf = dma_alloc_coherent(toe->dev, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T), -+ &gmac->swtxq_desc_base_dma, GFP_KERNEL); -+ gmac->swtxq_desc_base = (unsigned int)desc_buf; -+ if (!desc_buf) { -+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__); -+ return; -+ } -+ memset(desc_buf, 0, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T)); -+ dma_sync_single_for_device(toe->dev, gmac->swtxq_desc_base_dma, -+ TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T), -+ DMA_TO_DEVICE); -+ __raw_writel((gmac->swtxq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_GMAC_SWTXQ_DESC_POWER, -+ gmac->dma_base_addr + GMAC_SW_TX_QUEUE_BASE_REG); ++ dma_addr_t rxq_dma_base; ++ dma_addr_t txq_dma_base; + -+ /* GMAC0 SW TX Q0-Q5 */ -+ offset = 0; -+ rwptr_reg.bits.wptr = 0; -+ rwptr_reg.bits.rptr = 0; -+ rwptr_addr = gmac->dma_base_addr + GMAC_SW_TX_QUEUE0_PTR_REG; -+ for (i = 0; i < TOE_SW_TXQ_NUM; i++) { -+ gmac->swtxq[i].rwptr_reg = rwptr_addr; -+ gmac->swtxq[i].desc_base_dma = (unsigned int)gmac->swtxq_desc_base_dma + offset; -+ gmac->swtxq[i].desc_base = (unsigned int)desc_buf + offset; -+ offset += TOE_GMAC_SWTXQ_DESC_NUM * sizeof(GMAC_TXDESC_T); -+ __raw_writel(rwptr_reg.bits32, rwptr_addr); -+ rwptr_addr += 4; -+ } -+} ++ unsigned int msg_enable; ++ spinlock_t config_lock; + -+/*---------------------------------------------------------------------- -+* toe_init_default_queue -+* (1) Initialize the default 0/1 Queue Header -+* Register: TOE_DEFAULT_Q0_HDR_BASE (0x60002000) -+* TOE_DEFAULT_Q1_HDR_BASE (0x60002008) -+* (2) Initialize Descriptors of Default Queue 0/1 -+*----------------------------------------------------------------------*/ -+static void toe_init_default_queue(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ volatile NONTOE_QHDR_T *qhdr; -+ GMAC_RXDESC_T *desc_ptr; ++ struct u64_stats_sync tx_stats_syncp; ++ struct u64_stats_sync rx_stats_syncp; ++ struct u64_stats_sync ir_stats_syncp; + -+ desc_ptr = dma_alloc_coherent(toe->dev, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T), -+ &gmac->default_desc_base_dma, GFP_KERNEL); -+ if (!desc_ptr) { -+ dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__); -+ return; -+ } -+ memset(desc_ptr, 0, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T)); -+ dma_sync_single_for_device(toe->dev, gmac->default_desc_base_dma, -+ TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T), -+ DMA_TO_DEVICE); -+ gmac->default_desc_base = (unsigned int)desc_ptr; -+ qhdr = (volatile NONTOE_QHDR_T *)(toe->global_base + TOE_DEFAULT_Q_HDR_BASE(gmac->port_id)); -+ qhdr->word0.base_size = ((unsigned int)gmac->default_desc_base_dma & NONTOE_QHDR0_BASE_MASK) | TOE_DEFAULT_Q_DESC_POWER; -+ qhdr->word1.bits32 = 0; -+ gmac->default_qhdr = (NONTOE_QHDR_T *)qhdr; -+} ++ 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; ++}; + -+/*---------------------------------------------------------------------- -+* toe_init_interrupt_config -+* Interrupt Select Registers are used to map interrupt to int0 or int1 -+* Int0 and int1 are wired to CPU 0/1 GMAC 0/1 -+* Interrupt Device Inteface data are used to pass device info to -+* upper device driver or store status/statistics -+* ISR handler -+* (1) If status bit ON but masked, the prinf error message (bug issue) -+* (2) If select bits are for me, handle it, else skip to let -+* the other ISR handles it. -+* Notes: -+* GMACx init routine (for eCOS) or open routine (for Linux) -+* enable the interrupt bits only which are selected for it. -+* -+* Default Setting: -+* GMAC0 intr bits ------> int0 ----> eth0 -+* GMAC1 intr bits ------> int1 ----> eth1 -+* TOE intr -------------> int0 ----> eth0 -+* Classification Intr --> int0 ----> eth0 -+* Default Q0 -----------> int0 ----> eth0 -+* Default Q1 -----------> int1 ----> eth1 -+*----------------------------------------------------------------------*/ -+static void toe_init_interrupt_config(struct toe_private *toe) -+{ -+ /* clear all status bits */ -+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG); -+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG); -+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG); -+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG); -+ __raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG); ++#define GMAC_STATS_NUM ( \ ++ RX_STATS_NUM + RX_STATUS_NUM + RX_CHKSUM_NUM + 1 + \ ++ TX_MAX_FRAGS + 2) + -+ /* Init select registers */ -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG); ++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", ++}; + -+ /* disable all interrupt */ -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_0_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_1_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_2_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_3_REG); -+ __raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_4_REG); -+} ++static void gmac_dump_dma_state(struct net_device *dev); + -+static void toe_gmac_hw_start(struct gmac_private *gmac) -+{ -+ GMAC_DMA_CTRL_T dma_ctrl; -+ -+ /* program dma control register */ -+ dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_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_prot = 0; -+ dma_ctrl.bits.rd_burst_size = 3; -+ dma_ctrl.bits.rd_insert_bytes = RX_INSERT_BYTES; -+ dma_ctrl.bits.rd_bus = 3; -+ dma_ctrl.bits.td_prot = 0; -+ dma_ctrl.bits.td_burst_size = 3; -+ dma_ctrl.bits.td_bus = 3; -+ -+ __raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG); -+} -+ -+static void toe_gmac_hw_stop(struct gmac_private *gmac) -+{ -+ GMAC_DMA_CTRL_T dma_ctrl; -+ -+ /* program dma control register */ -+ dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_DMA_CTRL_REG); -+ dma_ctrl.bits.rd_enable = 0; -+ dma_ctrl.bits.td_enable = 0; -+ __raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG); -+} -+ -+static void toe_gmac_init_chip(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ GMAC_CONFIG2_T config2_val; -+ GMAC_CONFIG0_T config0; -+ GMAC_CONFIG1_T config1; -+ GMAC_STATUS_T status; -+ GMAC_TX_WCR0_T hw_weigh; -+ GMAC_TX_WCR1_T sw_weigh; -+ GMAC_RX_FLTR_T rx_filter; -+ -+ /* set RX_FLTR register to receive all multicast packet */ -+ rx_filter.bits32 = __raw_readl(gmac->base_addr + GMAC_RX_FLTR); -+ rx_filter.bits.unicast = 1; -+ rx_filter.bits.multicast = 1; -+ rx_filter.bits.broadcast = 1; -+ __raw_writel(rx_filter.bits32, gmac->base_addr + GMAC_RX_FLTR); -+ -+ /* set flow control threshold */ -+ config1.bits32 = 0; -+ config1.bits.set_threshold = 32 / 2; -+ config1.bits.rel_threshold = 32 / 4 * 3; -+ __raw_writel(config1.bits32, gmac->base_addr + GMAC_CONFIG1); -+ -+ /* set flow control threshold */ -+ config2_val.bits32 = 0; -+ config2_val.bits.set_threshold = TOE_SW_FREEQ_DESC_NUM / 4; -+ config2_val.bits.rel_threshold = TOE_SW_FREEQ_DESC_NUM / 2; -+ __raw_writel(config2_val.bits32, gmac->base_addr + GMAC_CONFIG2); -+ -+ /* disable TX/RX and disable internal loop back */ -+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0); -+ -+ config0.bits.max_len = 2; -+ -+ gmac->flow_control_enable = 0; -+ -+ config0.bits.tx_fc_en = 0; /* disable tx flow control */ -+ config0.bits.rx_fc_en = 0; /* disable rx flow control */ -+ config0.bits.dis_rx = 1; /* disable rx */ -+ config0.bits.dis_tx = 1; /* disable tx */ -+ config0.bits.loop_back = 0; /* enable/disable GMAC loopback */ -+ config0.bits.rx_err_detect = 1; -+ config0.bits.rgmii_en = 0; -+ config0.bits.rgmm_edge = 1; -+ config0.bits.rxc_inv = 0; -+ config0.bits.ipv4_rx_chksum = 1; /* enable H/W to check ip checksum */ -+ config0.bits.ipv6_rx_chksum = 1; /* enable H/W to check ip checksum */ -+ config0.bits.port0_chk_hwq = 1; -+ config0.bits.port1_chk_hwq = 1; -+ config0.bits.port0_chk_toeq = 1; -+ config0.bits.port1_chk_toeq = 1; -+ config0.bits.port0_chk_classq = 1; -+ config0.bits.port1_chk_classq = 1; -+ -+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0); -+ -+ hw_weigh.bits32 = 0; -+ hw_weigh.bits.hw_tq3 = 1; -+ hw_weigh.bits.hw_tq2 = 1; -+ hw_weigh.bits.hw_tq1 = 1; -+ hw_weigh.bits.hw_tq0 = 1; -+ __raw_writel(hw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_0_REG); -+ -+ sw_weigh.bits32 = 0; -+ sw_weigh.bits.sw_tq5 = 1; -+ sw_weigh.bits.sw_tq4 = 1; -+ sw_weigh.bits.sw_tq3 = 1; -+ sw_weigh.bits.sw_tq2 = 1; -+ sw_weigh.bits.sw_tq1 = 1; -+ sw_weigh.bits.sw_tq0 = 1; -+ __raw_writel(sw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_1_REG); -+ -+ /* set interface type */ -+ status.bits32 = __raw_readl(gmac->base_addr + GMAC_STATUS); -+ -+ switch (gmac->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: -+ dev_err(&dev->dev, "Unsupported MII interface\n"); -+ return; -+ } -+ -+ __raw_writel(status.bits32, gmac->base_addr + GMAC_STATUS); -+} -+ -+static void toe_init_gmac(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ u32 data; -+ -+ /* GMAC initialization */ -+ toe_gmac_init_chip(dev); -+ -+ /* ----------------------------------------------------------- -+ Enable GMAC interrupt & disable loopback -+ Notes: -+ GMACx init routine (for eCOS) or open routine (for Linux) -+ enable the interrupt bits only which are selected for him. -+ --------------------------------------------------------------*/ -+ -+ /* Enable Interrupt Bits */ -+ if (gmac->port_id == 0) { -+ gmac->intr0_selected = GMAC0_TXDERR_INT_BIT | GMAC0_TXPERR_INT_BIT | -+ GMAC0_RXDERR_INT_BIT | GMAC0_RXPERR_INT_BIT | -+ GMAC0_SWTQ05_FIN_INT_BIT | GMAC0_SWTQ05_EOF_INT_BIT | -+ GMAC0_SWTQ04_FIN_INT_BIT | GMAC0_SWTQ04_EOF_INT_BIT | -+ GMAC0_SWTQ03_FIN_INT_BIT | GMAC0_SWTQ03_EOF_INT_BIT | -+ GMAC0_SWTQ02_FIN_INT_BIT | GMAC0_SWTQ02_EOF_INT_BIT | -+ GMAC0_SWTQ01_FIN_INT_BIT | GMAC0_SWTQ01_EOF_INT_BIT | -+ GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT; -+ -+#ifdef GMAX_TX_INTR_DISABLED -+ gmac->intr0_enabled = 0; -+#else -+ gmac->intr0_enabled = GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT; -+#endif -+ -+ gmac->intr1_selected = TOE_IQ_ALL_BITS | TOE_CLASS_RX_INT_BITS | -+ GMAC0_HWTQ03_EOF_INT_BIT | GMAC0_HWTQ02_EOF_INT_BIT | -+ GMAC0_HWTQ01_EOF_INT_BIT | GMAC0_HWTQ00_EOF_INT_BIT | -+ DEFAULT_Q0_INT_BIT; -+ gmac->intr1_enabled = DEFAULT_Q0_INT_BIT | TOE_IQ_ALL_BITS; -+ gmac->intr2_selected = 0xffffffff; /* TOE Queue 32-63 FUUL Intr */ -+ gmac->intr2_enabled = 0xffffffff; -+ gmac->intr3_selected = 0xffffffff; /* TOE Queue 0-31 FUUL Intr */ -+ gmac->intr3_enabled = 0xffffffff; -+ gmac->intr4_selected = GMAC0_INT_BITS | CLASS_RX_FULL_INT_BITS | -+ HWFQ_EMPTY_INT_BIT | SWFQ_EMPTY_INT_BIT; -+ gmac->intr4_enabled = GMAC0_INT_BITS | SWFQ_EMPTY_INT_BIT; -+ -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) & ~gmac->intr0_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) & ~gmac->intr1_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) & ~gmac->intr2_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) & ~gmac->intr3_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) & ~gmac->intr4_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG); -+ } else { -+ gmac->intr0_selected = GMAC1_TXDERR_INT_BIT | GMAC1_TXPERR_INT_BIT | -+ GMAC1_RXDERR_INT_BIT | GMAC1_RXPERR_INT_BIT | -+ GMAC1_SWTQ15_FIN_INT_BIT | GMAC1_SWTQ15_EOF_INT_BIT | -+ GMAC1_SWTQ14_FIN_INT_BIT | GMAC1_SWTQ14_EOF_INT_BIT | -+ GMAC1_SWTQ13_FIN_INT_BIT | GMAC1_SWTQ13_EOF_INT_BIT | -+ GMAC1_SWTQ12_FIN_INT_BIT | GMAC1_SWTQ12_EOF_INT_BIT | -+ GMAC1_SWTQ11_FIN_INT_BIT | GMAC1_SWTQ11_EOF_INT_BIT | -+ GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT; -+#ifdef GMAX_TX_INTR_DISABLED -+ gmac->intr0_enabled = 0; -+#else -+ gmac->intr0_enabled = GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT; -+#endif -+ -+ gmac->intr1_selected = DEFAULT_Q1_INT_BIT; -+ gmac->intr1_enabled = DEFAULT_Q1_INT_BIT | TOE_IQ_ALL_BITS; -+ gmac->intr2_selected = 0; /* TOE Queue 32-63 FUUL Intr */ -+ gmac->intr2_enabled = 0; -+ gmac->intr3_selected = 0; /* TOE Queue 0-31 FUUL Intr */ -+ gmac->intr3_enabled = 0; -+ gmac->intr4_selected = GMAC1_INT_BITS; -+ gmac->intr4_enabled = GMAC1_INT_BITS; -+ -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) | gmac->intr0_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) | gmac->intr1_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) | gmac->intr2_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) | gmac->intr3_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG); -+ data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) | gmac->intr4_selected; -+ __raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG); -+ } -+ -+ /* enable only selected bits */ -+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_0_REG, -+ gmac->intr0_enabled, gmac->intr0_selected); -+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_1_REG, -+ gmac->intr1_enabled, gmac->intr1_selected); -+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_2_REG, -+ gmac->intr2_enabled, gmac->intr2_selected); -+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_3_REG, -+ gmac->intr3_enabled, gmac->intr3_selected); -+ gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_4_REG, -+ gmac->intr4_enabled, gmac->intr4_selected); -+ -+ /* start DMA process */ -+ toe_gmac_hw_start(gmac); -+} -+ -+static void toe_gmac_enable_tx_rx(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); -+ GMAC_CONFIG0_T config0; ++ unsigned long flags; ++ u32 reg; + -+ /* enable TX/RX */ -+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0); -+ config0.bits.dis_rx = 0; /* enable rx */ -+ config0.bits.dis_tx = 0; /* enable tx */ -+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0); ++ 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 toe_gmac_disable_tx_rx(struct net_device *dev) ++static void gmac_enable_tx_rx(struct net_device *dev) +{ + struct gmac_private *gmac = netdev_priv(dev); -+ GMAC_CONFIG0_T config0; ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; + -+ /* enable TX/RX */ -+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0); -+ config0.bits.dis_rx = 1; /* disable rx */ -+ config0.bits.dis_tx = 1; /* disable tx */ -+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0); ++ 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 toe_gmac_tx_complete(struct net_device *dev, unsigned int tx_qid) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ GMAC_TXDESC_T *curr_desc; -+ GMAC_TXDESC_0_T word0; -+ GMAC_TXDESC_1_T word1; -+ unsigned int desc_count; -+ GMAC_SWTXQ_T *swtxq; -+ DMA_RWPTR_T rwptr; -+ -+ /* get tx H/W completed descriptor virtual address */ -+ /* check tx status and accumulate tx statistics */ -+ swtxq = &gmac->swtxq[tx_qid]; -+ for (;;) { -+ rwptr.bits32 = __raw_readl(swtxq->rwptr_reg); -+ if (rwptr.bits.rptr == swtxq->finished_idx) -+ break; -+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx; -+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma, -+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T), -+ sizeof(GMAC_TXDESC_T), -+ DMA_FROM_DEVICE); -+ word0.bits32 = curr_desc->word0.bits32; -+ word1.bits32 = curr_desc->word1.bits32; -+ -+ if (word0.bits.status_tx_ok) { -+ dev->stats.tx_bytes += word1.bits.byte_count; -+ desc_count = word0.bits.desc_count; -+ if (desc_count == 0) { -+ dev_err(&dev->dev, "%s::Desc 0x%x = 0x%x, desc_count=%d\n", __func__, (u32)curr_desc, word0.bits32, desc_count); -+ BUG(); -+ } -+ while (--desc_count) { -+ word0.bits.status_tx_ok = 0; -+ curr_desc->word0.bits32 = word0.bits32; -+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma, -+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T), -+ sizeof(GMAC_TXDESC_T), -+ DMA_TO_DEVICE); -+ swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM); -+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx; -+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma, -+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T), -+ sizeof(GMAC_TXDESC_T), -+ DMA_FROM_DEVICE); -+ word0.bits32 = curr_desc->word0.bits32; -+ } -+ -+ word0.bits.status_tx_ok = 0; -+ dev_kfree_skb_any(swtxq->tx_skb[swtxq->finished_idx]); -+ swtxq->tx_skb[swtxq->finished_idx] = NULL; -+ -+ curr_desc->word0.bits32 = word0.bits32; -+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma, -+ swtxq->finished_idx * sizeof(GMAC_TXDESC_T), -+ sizeof(GMAC_TXDESC_T), -+ DMA_TO_DEVICE); -+ dev->stats.tx_packets++; -+ swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM); -+ } else { -+ break; -+ } -+ } -+ -+ if (netif_queue_stopped(dev)) -+ netif_wake_queue(dev); -+} -+ -+static int gmac_start_xmit(struct sk_buff *skb, struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ DMA_RWPTR_T rwptr; -+ GMAC_TXDESC_T *curr_desc; -+ int snd_pages = skb_shinfo(skb)->nr_frags + 1; /* get number of descriptor */ -+ int frag_id = 0; -+ int len, total_len = skb->len; -+ struct net_device_stats *isPtr = &dev->stats; -+ unsigned int free_desc; -+ GMAC_SWTXQ_T *swtxq; -+ register unsigned long word0, word1, word2, word3; -+ unsigned short wptr, rptr; -+ -+#ifdef GMAC_LEN_1_2_ISSUE -+ int total_pages; -+ total_pages = snd_pages; -+#endif -+ -+ if (skb->len >= 0x10000) { -+ isPtr->tx_dropped++; -+ dev_err(&dev->dev, "%s::skb->len %d >= 64K\n", __func__, skb->len); -+ netif_stop_queue(dev); -+ return 1; -+ } -+ -+#ifdef GMAC_USE_TXQ0 -+ #define tx_qid 0 -+#endif -+ -+ swtxq = &gmac->swtxq[tx_qid]; -+ -+ rwptr.bits32 = __raw_readl(swtxq->rwptr_reg); -+ wptr = rwptr.bits.wptr; -+ rptr = rwptr.bits.rptr; -+ -+ /* -+ * check finished desc or empty BD -+ * cannot check by read ptr of RW PTR register, -+ * because the HW complete to send but the SW may NOT handle it -+ */ -+#ifdef GMAX_TX_INTR_DISABLED -+ toe_gmac_tx_complete(dev, tx_qid); -+#endif -+ if (wptr >= swtxq->finished_idx) -+ free_desc = TOE_GMAC_SWTXQ_DESC_NUM - wptr + swtxq->finished_idx; -+ else -+ free_desc = swtxq->finished_idx - wptr; -+ -+ if (free_desc < snd_pages) { -+ isPtr->tx_dropped++; -+ netif_stop_queue(dev); -+ return 1; -+ } -+ -+ while (snd_pages) { -+ dma_addr_t pkt_datap; -+ -+ curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + wptr; -+ if (frag_id == 0) { -+ len = skb_headlen(skb); -+ pkt_datap = dma_map_single(toe->dev, skb->data, len, DMA_TO_DEVICE); -+ } else { -+ skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_id - 1]; -+ len = frag->size; -+ pkt_datap = dma_map_page(toe->dev, frag->page.p, frag->page_offset, len, DMA_TO_DEVICE); -+ } -+ -+ /* set TX descriptor */ -+ word0 = len; -+ word3 = (dev->mtu + 14) | EOFIE_BIT; -+ -+#ifdef DO_HW_CHKSUM -+ if (total_len <= 1514 && ip_hdr(skb) && (ip_hdr(skb)->frag_off & __constant_htons(0x3fff))) -+ word1 = total_len | -+ TSS_IP_CHKSUM_BIT | -+ TSS_IPV6_ENABLE_BIT | -+ TSS_MTU_ENABLE_BIT; -+ else -+ word1 = total_len | -+ TSS_UDP_CHKSUM_BIT | -+ TSS_TCP_CHKSUM_BIT | -+ TSS_IP_CHKSUM_BIT | -+ TSS_IPV6_ENABLE_BIT | -+ TSS_MTU_ENABLE_BIT; -+#else -+ word1 = total_len | TSS_MTU_ENABLE_BIT; -+#endif -+ word2 = (unsigned long)pkt_datap; -+ -+ if (frag_id == 0) -+ word3 |= SOF_BIT; -+ -+ if (snd_pages == 1) { -+ word3 |= EOF_BIT; -+ swtxq->tx_skb[wptr] = skb; -+ } else -+ swtxq->tx_skb[wptr] = NULL; -+ -+#ifdef GMAC_LEN_1_2_ISSUE -+ if ((total_pages != snd_pages) && (len == 1 || len == 2) && ((u32)pkt_datap & 0x03)) { -+ memcpy((void *)&_debug_prefetch_buf[_debug_prefetch_cnt][0], pkt_datap, len); -+ pkt_datap = (char *)&_debug_prefetch_buf[_debug_prefetch_cnt][0]; -+ word2 = (unsigned long)__pa(pkt_datap); -+ _debug_prefetch_cnt++; -+ if (_debug_prefetch_cnt >= _DEBUG_PREFETCH_NUM) -+ _debug_prefetch_cnt = 0; -+ } -+#endif -+ curr_desc->word0.bits32 = word0; -+ curr_desc->word1.bits32 = word1; -+ curr_desc->word2.bits32 = word2; -+ curr_desc->word3.bits32 = word3; -+ free_desc--; -+ dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma, -+ wptr * sizeof(GMAC_TXDESC_T), -+ sizeof(GMAC_TXDESC_T), -+ DMA_TO_DEVICE); -+ wptr = RWPTR_ADVANCE_ONE(wptr, TOE_GMAC_SWTXQ_DESC_NUM); -+ frag_id++; -+ snd_pages--; -+ } -+ -+ SET_WPTR(swtxq->rwptr_reg, wptr); -+ dev->trans_start = jiffies; -+ -+ return 0; -+} -+ -+static void __gmac_set_mac_address(struct net_device *dev) ++static void gmac_disable_tx_rx(struct net_device *dev) +{ + struct gmac_private *gmac = netdev_priv(dev); -+ unsigned int reg_val; ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; + -+ reg_val = dev->dev_addr[0] + (dev->dev_addr[1] << 8) + -+ (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24); -+ __raw_writel(reg_val, gmac->base_addr + GMAC_STA_ADD0); -+ reg_val = (__raw_readl(gmac->base_addr + GMAC_STA_ADD1) & 0xFFFF0000) + -+ dev->dev_addr[4] + (dev->dev_addr[5] << 8); -+ __raw_writel(reg_val, gmac->base_addr + GMAC_STA_ADD1); ++ 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 int gmac_set_mac_address(struct net_device *dev, void *addr) -+{ -+ struct sockaddr *sa = addr; -+ -+ memcpy(dev->dev_addr, sa->sa_data, dev->addr_len); -+ -+ __gmac_set_mac_address(dev); -+ -+ return 0; -+} -+ -+static void gmac_get_mac_address(struct net_device *dev) ++static void gmac_set_flow_control(struct net_device *dev, bool tx, bool rx) +{ + struct gmac_private *gmac = netdev_priv(dev); -+ unsigned int reg_val; ++ void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0; ++ unsigned long flags; ++ u32 reg; + -+ reg_val = __raw_readl(gmac->base_addr + GMAC_STA_ADD0); -+ dev->dev_addr[0] = reg_val & 0xFF; -+ dev->dev_addr[1] = (reg_val >> 8) & 0xFF; -+ dev->dev_addr[2] = (reg_val >> 16) & 0xFF; -+ dev->dev_addr[3] = (reg_val >> 24) & 0xFF; -+ reg_val = __raw_readl(gmac->base_addr + GMAC_STA_ADD1); -+ dev->dev_addr[4] = reg_val & 0xFF; -+ dev->dev_addr[5] = (reg_val >> 8) & 0xFF; ++ spin_lock_irqsave(&gmac->config_lock, flags); + -+ if (!is_valid_ether_addr(dev->dev_addr)) { -+ random_ether_addr(dev->dev_addr); -+ __gmac_set_mac_address(dev); -+ } ++ 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); +} + -+struct net_device_stats *gmac_get_stats(struct net_device *dev) ++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; + -+ if (netif_running(dev)) { -+ unsigned short multicast; -+ -+ multicast = __raw_readw(gmac->base_addr + GMAC_IN_MCAST) + -+ __raw_readw(gmac->base_addr + GMAC_IN_BCAST); -+ -+ dev->stats.rx_dropped += __raw_readw(gmac->base_addr + GMAC_IN_DISCARDS); -+ dev->stats.rx_errors += __raw_readw(gmac->base_addr + GMAC_IN_ERRORS); -+ dev->stats.rx_packets += __raw_readl(gmac->base_addr + GMAC_IN_MAC1) + multicast; -+ dev->stats.multicast += multicast; -+ } -+ -+ return &dev->stats; -+} -+ -+/* TODO: If possible use crc32 from kernel lib */ -+static unsigned const ethernet_polynomial = 0x04c11db7U; -+static unsigned int ether_crc(int length, unsigned char *data) -+{ -+ int crc = -1; -+ unsigned int i; -+ unsigned int crc_val = 0; -+ -+ while (--length >= 0) { -+ unsigned char current_octet = *data++; -+ int bit; -+ for (bit = 0; bit < 8; bit++, current_octet >>= 1) -+ crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ? -+ ethernet_polynomial : 0); -+ } -+ crc = ~crc; -+ for (i = 0; i < 32; i++) -+ crc_val = crc_val + (((crc << i) & 0x80000000) >> (31 - i)); -+ -+ return crc_val; -+} -+ -+/*---------------------------------------------------------------------- -+* toe_gmac_fill_free_q -+* allocate buffers for free queue. -+*----------------------------------------------------------------------*/ -+static void toe_gmac_fill_free_q(struct toe_private *toe) -+{ -+ struct sk_buff *skb; -+ DMA_RWPTR_T fq_rwptr; -+ GMAC_RXDESC_T *fq_desc; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&toe->freeq_lock, flags); -+ fq_rwptr.bits32 = __raw_readl(toe->global_base + GLOBAL_SWFQ_RWPTR_REG); -+ while ((unsigned short)RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr, -+ TOE_SW_FREEQ_DESC_NUM) != fq_rwptr.bits.rptr) { -+ skb = dev_alloc_skb(SW_RX_BUF_SIZE); -+ if (skb == NULL) { -+ dev_err(toe->dev, "%s::skb allocation fail\n", __func__); -+ break; -+ } -+ REG32(skb->data) = (unsigned int)skb; -+ skb_reserve(skb, SKB_RESERVE_BYTES); -+ fq_rwptr.bits.wptr = RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr, -+ TOE_SW_FREEQ_DESC_NUM); -+ fq_desc = (GMAC_RXDESC_T *)toe->swfq_desc_base + fq_rwptr.bits.wptr; -+ fq_desc->word2.buf_adr = dma_map_single(toe->dev, skb->data, -+ SW_RX_BUF_SIZE - SKB_RESERVE_BYTES, -+ DMA_FROM_DEVICE); -+ dma_sync_single_range_for_device(toe->dev, -+ toe->sw_freeq_desc_base_dma, -+ fq_rwptr.bits.wptr * sizeof(GMAC_RXDESC_T), -+ sizeof(GMAC_RXDESC_T), -+ DMA_TO_DEVICE); -+ SET_WPTR(toe->global_base + GLOBAL_SWFQ_RWPTR_REG, fq_rwptr.bits.wptr); -+ } -+ spin_unlock_irqrestore(&toe->freeq_lock, flags); -+} -+ -+static void fill_free_q_worker(struct work_struct *work) -+{ -+ struct toe_private *toe = container_of(work, struct toe_private, freq_work); -+ -+ toe_gmac_fill_free_q(toe); -+} -+ -+/*---------------------------------------------------------------------- -+* toe_gmac_handle_default_rxq -+* (1) Get rx Buffer for default Rx queue -+* (2) notify or call upper-routine to handle it -+* (3) get a new buffer and insert it into SW free queue -+* (4) Note: The SW free queue Read-Write Pointer should be locked when accessing -+*----------------------------------------------------------------------*/ -+static void toe_gmac_handle_default_rxq(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ GMAC_RXDESC_T *curr_desc; -+ struct sk_buff *skb; -+ DMA_RWPTR_T rwptr; -+ unsigned int pkt_size; -+ int max_cnt; -+ unsigned int desc_count; -+ unsigned int chksum_status, rx_status; -+ struct net_device_stats *isPtr = &dev->stats; -+ -+ rwptr.bits32 = __raw_readl(&gmac->default_qhdr->word1); -+ max_cnt = DEFAULT_RXQ_MAX_CNT; -+ while ((--max_cnt) && rwptr.bits.rptr != rwptr.bits.wptr) { -+ curr_desc = (GMAC_RXDESC_T *)gmac->default_desc_base + rwptr.bits.rptr; -+ dma_sync_single_range_for_device(toe->dev, -+ gmac->default_desc_base_dma, -+ rwptr.bits.rptr * sizeof(GMAC_RXDESC_T), -+ sizeof(GMAC_RXDESC_T), -+ DMA_FROM_DEVICE); -+ rx_status = curr_desc->word0.bits.status; -+ chksum_status = curr_desc->word0.bits.chksum_status; -+ pkt_size = curr_desc->word1.bits.byte_count; /* total byte count in a frame */ -+ desc_count = curr_desc->word0.bits.desc_count; /* get descriptor count per frame */ -+ skb = (struct sk_buff *)(REG32(__va(curr_desc->word2.buf_adr) - SKB_RESERVE_BYTES)); -+ -+ if ((curr_desc->word0.bits32 & (GMAC_RXDESC_0_T_derr | GMAC_RXDESC_0_T_perr)) -+ || (pkt_size < 60) || (chksum_status & 0x4) || rx_status) { -+ if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_derr) -+ dev_err(&dev->dev, "%s::derr\n", __func__); -+ if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_perr) -+ dev_err(&dev->dev, "%s::perr\n", __func__); -+ if (rx_status && (rx_status == 4 || rx_status == 7)) -+ isPtr->rx_crc_errors++; -+ -+ dev_kfree_skb_irq(skb); -+ goto bad_frame; -+ } -+ -+ if (curr_desc->word0.bits.drop) -+ dev_warn(&dev->dev, "%s::Drop\n", __func__); -+ -+ /* get frame information from the first descriptor of the frame */ -+ skb_reserve(skb, RX_INSERT_BYTES); /* 16 byte align the IP fields. */ -+ skb_put(skb, pkt_size); -+ skb->dev = dev; -+ skb->protocol = eth_type_trans(skb, dev); -+ if (chksum_status == RX_CHKSUM_IP_UDP_TCP_OK || chksum_status == RX_CHKSUM_IP_OK_ONLY) -+ skb->ip_summed = CHECKSUM_UNNECESSARY; -+ -+ netif_rx(skb); /* socket rx */ -+ dev->last_rx = jiffies; -+ -+ isPtr->rx_bytes += pkt_size; -+ -+bad_frame: -+ /* advance one for Rx default Q 0/1 */ -+ rwptr.bits.rptr = RWPTR_ADVANCE_ONE(rwptr.bits.rptr, TOE_DEFAULT_Q_DESC_NUM); -+ SET_RPTR(&gmac->default_qhdr->word1, rwptr.bits.rptr); -+ } -+ -+ schedule_work(&toe->freq_work); -+} -+ -+static irqreturn_t toe_gmac_interrupt(int irq, void *dev_instance) -+{ -+ struct net_device *dev = dev_instance; -+ struct gmac_private *gmac = netdev_priv(dev); -+ struct toe_private *toe = dev->ml_priv; -+ unsigned int status0; -+ unsigned int status1; -+ unsigned int status2; -+ unsigned int status3; -+ unsigned int status4; -+ int handled = 0; -+ -+ /* read Interrupt status */ -+ status0 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG); -+ status1 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG); -+ status2 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG); -+ status3 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG); -+ status4 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG); -+ -+ /* clear interrupts */ -+ if (status0) -+ __raw_writel(status0, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG); -+ if (status1) -+ __raw_writel(status1, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG); -+ if (status2) -+ __raw_writel(status2, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG); -+ if (status3) -+ __raw_writel(status3, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG); -+ if (status4) -+ __raw_writel(status4, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG); -+ -+ /* handle freeq interrupt first */ -+ if (status4 & gmac->intr4_enabled) { -+ if ((status4 & SWFQ_EMPTY_INT_BIT) && (gmac->intr4_enabled & SWFQ_EMPTY_INT_BIT)) { -+ toe_gmac_fill_free_q(toe); -+ handled = 1; -+ } -+ } -+ -+ /* Interrupt Status 1 */ -+ if (status1 & gmac->intr1_enabled) { -+ /* -+ * Handle GMAC 0/1 HW Tx queue 0-3 EOF events -+ * Only count -+ * TOE, Classification, and default queues interrupts are handled by ISR -+ * because they should pass packets to upper layer -+ */ -+ if (gmac->port_id == 0) { -+ if (netif_running(dev) && (status1 & DEFAULT_Q0_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q0_INT_BIT)) { -+ toe_gmac_handle_default_rxq(dev); -+ handled = 1; -+ } -+ } else if (gmac->port_id == 1) { -+ if (netif_running(dev) && (status1 & DEFAULT_Q1_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q1_INT_BIT)) { -+ toe_gmac_handle_default_rxq(dev); -+ handled = 1; -+ } -+ } -+ } -+ -+ /* Interrupt Status 0 */ -+ if (status0 & gmac->intr0_enabled) { -+#ifndef GMAX_TX_INTR_DISABLED -+ if (gmac->port_id == 1 && netif_running(dev) && -+ (((status0 & GMAC1_SWTQ10_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_FIN_INT_BIT)) -+ || -+ ((status0 & GMAC1_SWTQ10_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_EOF_INT_BIT)))) { -+ toe_gmac_tx_complete(dev, 0); -+ handled = 1; -+ } -+ -+ if (gmac->port_id == 0 && netif_running(dev) && -+ (((status0 & GMAC0_SWTQ00_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_FIN_INT_BIT)) -+ || -+ ((status0 & GMAC0_SWTQ00_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_EOF_INT_BIT)))) { -+ toe_gmac_tx_complete(dev, 0); -+ handled = 1; -+ } -+#endif -+ } -+ -+ return IRQ_RETVAL(handled); -+} -+ -+static int gmac_open(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ int retval; -+ -+ /* hook ISR */ -+ retval = request_irq(dev->irq, toe_gmac_interrupt, 0, dev->name, dev); -+ if (retval) -+ return retval; -+ -+ toe_init_gmac(dev); -+ -+ netif_carrier_off(dev); -+ phy_start(gmac->phydev); -+ -+ netif_start_queue(dev); -+ -+ return 0; -+} -+ -+static int gmac_close(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ -+ netif_stop_queue(dev); -+ mdelay(20); -+ -+ if (gmac->phydev) -+ phy_stop(gmac->phydev); -+ -+ /* stop tx/rx packet */ -+ toe_gmac_disable_tx_rx(dev); -+ mdelay(20); -+ -+ /* stop the chip's Tx and Rx DMA processes */ -+ toe_gmac_hw_stop(gmac); -+ -+ disable_irq(dev->irq); -+ free_irq(dev->irq, dev); -+ -+ return 0; -+} -+ -+static void gmac_get_phy_status(struct net_device *dev) -+{ -+ struct gmac_private *gmac = netdev_priv(dev); -+ GMAC_CONFIG0_T config0; -+ GMAC_STATUS_T status, old_status; -+ struct phy_device *phydev = gmac->phydev; -+ -+ old_status.bits32 = status.bits32 = __raw_readl(gmac->base_addr + GMAC_STATUS); ++ old_status.bits32 = status.bits32 = readl(status_reg); + + status.bits.link = phydev->link; + status.bits.duplex = phydev->duplex; @@ -1101,274 +479,2029 @@ + status.bits.mii_rmii = GMAC_PHY_RGMII_100_10; + break; + default: -+ dev_warn(&dev->dev, "Not supported PHY speed (%d)\n", phydev->speed); ++ netdev_warn(dev, "Not supported PHY speed (%d)\n", ++ phydev->speed); + } + -+ if (phydev->pause) { -+ if (gmac->flow_control_enable == 0) { -+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0); -+ config0.bits.tx_fc_en = 1; /* enable tx flow control */ -+ config0.bits.rx_fc_en = 1; /* enable rx flow control */ -+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0); -+ dev_info(&dev->dev, "MII flow control enabled\n"); -+ } -+ gmac->flow_control_enable = 1; -+ } else { -+ if (gmac->flow_control_enable == 1) { -+ config0.bits32 = __raw_readl(gmac->base_addr + GMAC_CONFIG0); -+ config0.bits.tx_fc_en = 0; /* disable tx flow control */ -+ config0.bits.rx_fc_en = 0; /* disable rx flow control */ -+ __raw_writel(config0.bits32, gmac->base_addr + GMAC_CONFIG0); -+ dev_info(&dev->dev, "MII flow control disabled\n"); -+ } -+ gmac->flow_control_enable = 0; -+ } ++ 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 (old_status.bits32 != status.bits32) { -+ toe_gmac_disable_tx_rx(dev); ++ 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); -+ mdelay(10); /* let GMAC consume packet */ -+ __raw_writel(status.bits32, gmac->base_addr + GMAC_STATUS); -+ if (status.bits.link) -+ toe_gmac_enable_tx_rx(dev); ++ 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 <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 <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 rx; ++} ++ ++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); -+ GMAC_RX_FLTR_T filter; -+ unsigned int mc_filter[2]; /* Multicast hash filter */ -+ int bit_nr; ++ 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; + -+ filter.bits32 = 0; -+ filter.bits.error = 0; + if (dev->flags & IFF_PROMISC) { + filter.bits.error = 1; + filter.bits.promiscuous = 1; -+ filter.bits.broadcast = 1; -+ filter.bits.multicast = 1; -+ filter.bits.unicast = 1; -+ mc_filter[1] = mc_filter[0] = 0xffffffff; -+ } else if (dev->flags & IFF_ALLMULTI) { -+ filter.bits.broadcast = 1; -+ filter.bits.multicast = 1; -+ filter.bits.unicast = 1; -+ mc_filter[1] = mc_filter[0] = 0xffffffff; -+ } else { -+ struct netdev_hw_addr *ha; -+ -+ filter.bits.broadcast = 1; -+ filter.bits.multicast = 1; -+ filter.bits.unicast = 1; ++ } else if (!(dev->flags & IFF_ALLMULTI)) { + mc_filter[1] = mc_filter[0] = 0; + netdev_for_each_mc_addr(ha, dev) { -+ bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3f; -+ if (bit_nr <= 32) -+ mc_filter[0] = mc_filter[0] | (1 << bit_nr); -+ else -+ mc_filter[1] = mc_filter[1] | (1 << (bit_nr - 32)); ++ bit_nr = ~crc32_le(~0, ha->addr, ETH_ALEN) & 0x3f; ++ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 0x1f); + } + } -+ __raw_writel(filter.bits32, gmac->base_addr + GMAC_RX_FLTR); -+ __raw_writel(mc_filter[0], gmac->base_addr + GMAC_MCAST_FIL0); -+ __raw_writel(mc_filter[1], gmac->base_addr + GMAC_MCAST_FIL1); ++ ++ 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_tx_timeout(struct net_device *dev) ++static void __gmac_set_mac_address(struct net_device *dev) +{ -+ if (!netif_queue_stopped(dev)) -+ netif_wake_queue(dev); ++ struct gmac_private *gmac = netdev_priv(dev); ++ __le32 addr[3]; + -+ dev_warn(&dev->dev, "TX timeout\n"); ++ 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); +} + -+const static struct net_device_ops gemini_gmac_ops = { -+ .ndo_open = gmac_open, -+ .ndo_stop = gmac_close, -+ .ndo_start_xmit = gmac_start_xmit, -+ .ndo_get_stats = gmac_get_stats, -+ .ndo_set_rx_mode = gmac_set_rx_mode, -+ .ndo_set_mac_address = gmac_set_mac_address, -+ .ndo_tx_timeout = gmac_tx_timeout, -+}; -+ -+static void mac_init_drv(struct toe_private *toe) ++static int gmac_set_mac_address(struct net_device *dev, void *addr) +{ -+ QUEUE_THRESHOLD_T threshold; -+ DMA_SKB_SIZE_T skb_size; ++ struct sockaddr *sa = addr; + -+ /* clear non TOE Queue Header Area */ -+ memset(toe->global_base + TOE_NONTOE_QUE_HDR_BASE, 0, -+ NONTOE_Q_HDR_AREA_END - TOE_NONTOE_QUE_HDR_BASE); -+ -+ /* clear TOE Queue Header Area */ -+ memset(toe->global_base + TOE_TOE_QUE_HDR_BASE, 0, -+ TOE_Q_HDR_AREA_END - TOE_TOE_QUE_HDR_BASE); -+ -+ /* Write GLOBAL_QUEUE_THRESHOLD_REG */ -+ threshold.bits32 = 0; -+ threshold.bits.swfq_empty = (TOE_SW_FREEQ_DESC_NUM > 256) ? 255 : -+ TOE_SW_FREEQ_DESC_NUM / 2; -+ threshold.bits.hwfq_empty = (TOE_HW_FREEQ_DESC_NUM > 256) ? 256 / 4 : -+ TOE_HW_FREEQ_DESC_NUM / 4; -+ threshold.bits.toe_class = (TOE_TOE_DESC_NUM > 256) ? 256 / 4 : -+ TOE_TOE_DESC_NUM / 4; -+ threshold.bits.intrq = (TOE_INTR_DESC_NUM > 256) ? 256 / 4 : -+ TOE_INTR_DESC_NUM / 4; -+ __raw_writel(threshold.bits32, toe->global_base + GLOBAL_QUEUE_THRESHOLD_REG); -+ -+ /* Init skb size */ -+ skb_size.bits.hw_skb_size = HW_RX_BUF_SIZE; -+ skb_size.bits.sw_skb_size = SW_RX_BUF_SIZE; -+ __raw_writel(skb_size.bits32, toe->global_base + GLOBAL_DMA_SKB_SIZE_REG); -+ -+ toe_init_free_queue(toe); -+ toe_init_interrupt_config(toe); -+} -+ -+static int gmac_init_eth(struct platform_device *pdev, -+ unsigned int num) -+{ -+ struct gmac_private *gmac; -+ struct net_device *dev; -+ struct toe_private *toe = platform_get_drvdata(pdev); -+ struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data; -+ -+ if (!pdata->bus_id[num]) -+ return 0; -+ -+ dev = alloc_etherdev(sizeof(*gmac)); -+ if (dev == NULL) { -+ dev_err(&pdev->dev, "Can't allocate ethernet device #%d\n", num); -+ return -ENOMEM; -+ } -+ -+ gmac = netdev_priv(dev); -+ dev->ml_priv = toe; -+ toe->net_dev[num] = dev; -+ -+ gmac->base_addr = toe->global_base + TOE_GMAC_BASE(num); -+ gmac->dma_base_addr = toe->global_base + TOE_GMAC_DMA_BASE(num); -+ gmac->port_id = num; -+ -+ dev->base_addr = (unsigned int) gmac->base_addr; -+ dev->irq = platform_get_irq(pdev, num); -+ dev->netdev_ops = &gemini_gmac_ops; -+ dev->watchdog_timeo = GMAC_DEV_TX_TIMEOUT; -+ dev->tx_queue_len = TOE_GMAC_SWTXQ_DESC_NUM; -+ -+#ifdef DO_HW_CHKSUM -+ dev->features = NETIF_F_SG | NETIF_F_HW_CSUM; -+#ifdef ENABLE_TSO -+ dev->features |= NETIF_F_TSO; -+#endif -+#endif -+ -+ toe_init_swtx_queue(dev); -+ toe_init_default_queue(dev); -+ -+ gmac_get_mac_address(dev); -+ -+ /* TODO: Do we need this? */ -+ __raw_writel(0x55aa55aa, gmac->base_addr + GMAC_STA_ADD2); -+ -+ if (register_netdev(dev)) -+ return -1; -+ -+ gmac->phydev = phy_connect(dev, pdata->bus_id[num], &gmac_get_phy_status, -+ pdata->interface[num]); -+ if (IS_ERR(gmac->phydev)) -+ return PTR_ERR(gmac->phydev); -+ -+ gmac->phydev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause; -+ gmac->phydev->advertising = gmac->phydev->supported; ++ memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); ++ __gmac_set_mac_address(dev); + + return 0; +} + -+static int gmac_probe(struct platform_device *pdev) ++static void gmac_clear_hw_stats(struct net_device *dev) +{ -+ struct resource *res; -+ struct toe_private *toe; -+ int retval; ++ 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; ++ SET_ETHTOOL_OPS(dev, &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(struct toe_private), GFP_KERNEL); ++ toe = kzalloc(sizeof(*toe), GFP_KERNEL); + if (!toe) + return -ENOMEM; + ++ platform_set_drvdata(pdev, toe); + toe->dev = &pdev->dev; ++ toe->irq = irq; + -+ toe->global_base = ioremap(res->start, resource_size(res)); -+ if (!toe->global_base) { ++ toe->iomem = ioremap(res->start, resource_size(res)); ++ if (!toe->iomem) { + dev_err(toe->dev, "ioremap failed\n"); + retval = -EIO; + goto err_data; + } + -+ platform_set_drvdata(pdev, toe); ++ toe_save_mac_addr(toe, pdev); + -+ mac_init_drv(toe); ++ retval = toe_reset(toe); ++ if (retval < 0) ++ goto err_unmap; + -+ INIT_WORK(&toe->freq_work, fill_free_q_worker); ++ 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); + -+ retval = gmac_init_eth(pdev, GMAC_PORT0); -+ if (retval) -+ goto err_unmap; -+ retval = gmac_init_eth(pdev, GMAC_PORT1); ++ toe_init_irq(toe); ++ ++ retval = toe_init(toe, pdev); + if (retval) + goto err_unmap; + -+ dev_info(&pdev->dev, SL351x_DRIVER_NAME "\n"); ++ 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->global_base); ++ iounmap(toe->iomem); +err_data: + kfree(toe); + return retval; +} + -+static int gmac_remove(struct platform_device *pdev) ++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->net_dev[i]) { -+ unregister_netdev(toe->net_dev[i]); -+ kfree(toe->net_dev[i]); -+ } ++ if (toe->netdev[i]) ++ unregister_netdev(toe->netdev[i]); + -+ iounmap(toe->global_base); ++ toe_init_irq(toe); ++ toe_deinit(toe); + ++ iounmap(toe->iomem); + kfree(toe); + + return 0; +} + +static struct platform_driver gemini_gmac_driver = { -+ .probe = gmac_probe, -+ .remove = gmac_remove, -+ .driver = { -+ .name = "gemini-gmac", -+ .owner = THIS_MODULE, -+ }, ++ .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); +} + @@ -1379,46 +2512,25 @@ + +module_init(gemini_gmac_init); +module_exit(gemini_gmac_exit); -+ -+MODULE_AUTHOR("Paulius Zaleckas"); -+MODULE_DESCRIPTION("Ethernet device driver for Gemini SoC"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS("platform:gemini-gmac"); --- /dev/null -+++ b/drivers/net/gemini_negmac/gm_gmac.h -@@ -0,0 +1,1489 @@ ++++ b/drivers/net/ethernet/gemini/sl351x_hw.h +@@ -0,0 +1,1436 @@ +/* -+ * Register definitions for Gemini Ethernet device driver. ++ * Register definitions for Gemini LEPUS GMAC Ethernet device driver. + * + * Copyright (C) 2006, Storlink, Corp. + * Copyright (C) 2008-2009, Paulius Zaleckas ++ * Copyright (C) 2010, Michał Mirosław + * + * 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_SL351x_H -+#define _GMAC_SL351x_H -+#include ++#ifndef _GMAC_HW_H ++#define _GMAC_HW_H + -+#define _PACKED_ __attribute__ ((aligned(1), packed)) -+ -+#ifndef BIT -+#define BIT(x) (1 << (x)) -+#endif -+ -+#define REG32(addr) (*(volatile unsigned long * const)(addr)) -+ -+/* Define frame size */ -+#define GMAC_MAX_ETH_FRAME_SIZE 1514 -+#define GMAC_TX_BUF_SIZE ((GMAC_MAX_ETH_FRAME_SIZE + 31) & (~31)) -+ -+#define SW_RX_BUF_SIZE 1536 -+#define HW_RX_BUF_SIZE 1536 -+ -+#define GMAC_DEV_TX_TIMEOUT (10*HZ) -+#define SKB_RESERVE_BYTES 16 ++#include + +/* + * Base Registers @@ -1457,50 +2569,31 @@ +#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 ++#define TOE_CLASSIFICATION_QID(x) (0x22 + x) /* 0x22 ~ 0x2F */ ++#define TOE_TOE_QID(x) (0x40 + x) /* 0x40 ~ 0x7F */ + +/* -+ * TOE DMA Queue Number should be 2^n, n = 6...12 ++ * 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 -+ * They have same descriptor numbers. + * The base address and descriptor number are configured at + * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004) + */ -+#define TOE_SW_FREEQ_DESC_POWER 8 -+#define TOE_SW_FREEQ_DESC_NUM (1< 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 ++ 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; + @@ -2681,8 +3809,8 @@ +typedef union { + unsigned int bits32; + struct bit_qhdr5 { -+ unsigned int AckCnt : 16; // bit 15:0 -+ unsigned int SeqCnt : 16; // bit 31:16 ++ unsigned int AckCnt : 16; /* bit 15:0 */ ++ unsigned int SeqCnt : 16; /* bit 31:16 */ + } bits; +} TOE_QHDR5_T; + @@ -2692,9 +3820,9 @@ +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 ++ 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; + @@ -2704,8 +3832,8 @@ +typedef union { + unsigned int bits32; + struct bit_qhdr7 { -+ unsigned int AckThreshold : 16; // bit 15:0 -+ unsigned int SeqThreshold : 16; // bit 31:16 ++ unsigned int AckThreshold : 16; /* bit 15:0 */ ++ unsigned int SeqThreshold : 16; /* bit 31:16 */ + } bits; +} TOE_QHDR7_T; + @@ -2731,7 +3859,7 @@ + unsigned int base_size; +} NONTOE_QHDR0_T; + -+#define NONTOE_QHDR0_BASE_MASK (~0x0f) ++#define NONTOE_QHDR0_BASE_MASK (~0x0f) + +/* + * NONTOE Queue Header Word 1 @@ -2739,8 +3867,8 @@ +typedef union { + unsigned int bits32; + struct bit_nonqhdr1 { -+ unsigned int rptr : 16; // bit 15:0 -+ unsigned int wptr : 16; // bit 31:16 ++ unsigned int rptr : 16; /* bit 15:0 */ ++ unsigned int wptr : 16; /* bit 31:16 */ + } bits; +} NONTOE_QHDR1_T; + @@ -2758,8 +3886,8 @@ +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 ++ 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; + @@ -2769,15 +3897,15 @@ +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) ++ 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; + @@ -2803,8 +3931,8 @@ +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. ++ 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; + @@ -2822,89 +3950,4 @@ + unsigned int word7; +} INTR_QHDR_T; + -+/* -+ * GMAC private data -+ */ -+typedef struct { -+ void __iomem *rwptr_reg; -+ unsigned int desc_base; -+ unsigned int desc_base_dma; -+ unsigned short finished_idx; -+ struct sk_buff *tx_skb[TOE_GMAC_SWTXQ_DESC_NUM]; -+} GMAC_SWTXQ_T; -+ -+struct gmac_private { -+ struct phy_device *phydev; -+ unsigned int port_id; -+ void __iomem *base_addr; -+ void __iomem *dma_base_addr; -+ unsigned int swtxq_desc_base; -+ GMAC_SWTXQ_T swtxq[TOE_SW_TXQ_NUM]; -+ NONTOE_QHDR_T *default_qhdr; -+ unsigned int default_desc_base; -+ dma_addr_t default_desc_base_dma; -+ dma_addr_t swtxq_desc_base_dma; -+ unsigned int flow_control_enable; -+ unsigned int intr0_enabled; -+ unsigned int intr1_enabled; -+ unsigned int intr2_enabled; -+ unsigned int intr3_enabled; -+ unsigned int intr4_enabled; -+ unsigned int intr0_selected; -+ unsigned int intr1_selected; -+ unsigned int intr2_selected; -+ unsigned int intr3_selected; -+ unsigned int intr4_selected; -+}; -+ -+struct toe_private { -+ void __iomem *global_base; -+ struct net_device *net_dev[2]; -+ struct device *dev; -+ struct work_struct freq_work; -+ spinlock_t freeq_lock; -+ unsigned int swfq_desc_base; -+ unsigned int hwfq_desc_base; -+ unsigned int hwfq_buf_base; -+ dma_addr_t sw_freeq_desc_base_dma; -+ dma_addr_t hw_freeq_desc_base_dma; -+ dma_addr_t hwfq_buf_base_dma; -+ dma_addr_t hwfq_buf_end_dma; -+}; -+ -+#define GMAC_PORT0 0 -+#define GMAC_PORT1 1 -+ +#endif /* _GMAC_SL351x_H */ ---- /dev/null -+++ b/drivers/net/gemini_negmac/Makefile -@@ -0,0 +1,3 @@ -+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC)+= gemini_negmac.o -+ -+gemini_negmac-objs := gm_gmac.o ---- a/drivers/net/Kconfig -+++ b/drivers/net/Kconfig -@@ -100,6 +100,13 @@ config NET_FC - adaptor below. You also should have said Y to "SCSI support" and - "SCSI generic support". - -+config GEMINI_NET_ENGINE_GMAC -+ tristate "Gemini Gigabit Ethernet support" -+ depends on ARCH_GEMINI -+ select PHYLIB -+ help -+ This driver supports Gemini TOE and NAT dual Gigabit Ethernet. -+ - config MII - tristate "Generic Media Independent Interface device support" - help ---- a/drivers/net/Makefile -+++ b/drivers/net/Makefile -@@ -34,6 +34,7 @@ obj-$(CONFIG_ETRAX_ETHERNET) += cris/ - obj-$(CONFIG_NET_DSA) += dsa/ - obj-$(CONFIG_ETHERNET) += ethernet/ - obj-$(CONFIG_FDDI) += fddi/ -+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC) += gemini_negmac/ - obj-$(CONFIG_HIPPI) += hippi/ - obj-$(CONFIG_HAMRADIO) += hamradio/ - obj-$(CONFIG_IRDA) += irda/ diff --git a/target/linux/gemini/patches-3.10/121-arm-gemini-add-ethernet-device.patch b/target/linux/gemini/patches-3.10/121-arm-gemini-add-ethernet-device.patch deleted file mode 100644 index d6def9b687..0000000000 --- a/target/linux/gemini/patches-3.10/121-arm-gemini-add-ethernet-device.patch +++ /dev/null @@ -1,82 +0,0 @@ ---- a/arch/arm/mach-gemini/common.h -+++ b/arch/arm/mach-gemini/common.h -@@ -13,6 +13,7 @@ - #define __GEMINI_COMMON_H__ - - struct mtd_partition; -+struct gemini_gmac_platform_data; - - extern void gemini_map_io(void); - extern void gemini_init_irq(void); -@@ -26,6 +27,7 @@ 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(char mode, const char *cmd); - ---- a/arch/arm/mach-gemini/devices.c -+++ b/arch/arm/mach-gemini/devices.c -@@ -17,6 +17,7 @@ - #include - #include - #include -+#include - #include "common.h" - - static struct plat_serial8250_port serial_platform_data[] = { -@@ -134,3 +135,53 @@ int __init platform_register_watchdog(vo - { - return platform_device_register(&wdt_device); - } -+ -+static struct resource gmac_resources[] = { -+ { -+ .start = 0x60000000, -+ .end = 0x6000ffff, -+ .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 = "gemini-gmac", -+ .id = 0, -+ .dev = { -+ .dma_mask = &gmac_dmamask, -+ .coherent_dma_mask = DMA_BIT_MASK(32), -+ }, -+ .num_resources = ARRAY_SIZE(gmac_resources), -+ .resource = gmac_resources, -+}; -+ -+int __init platform_register_ethernet(struct gemini_gmac_platform_data *pdata) -+{ -+ unsigned int reg; -+ -+ reg = __raw_readl(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; -+ -+ __raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL); -+ -+ ethernet_device.dev.platform_data = pdata; -+ -+ return platform_device_register(ðernet_device); -+} diff --git a/target/linux/gemini/patches-3.10/121-arm-gemini-nas4220-register-ethernet.patch b/target/linux/gemini/patches-3.10/121-arm-gemini-nas4220-register-ethernet.patch new file mode 100644 index 0000000000..db95648611 --- /dev/null +++ b/target/linux/gemini/patches-3.10/121-arm-gemini-nas4220-register-ethernet.patch @@ -0,0 +1,79 @@ +--- a/arch/arm/mach-gemini/board-nas4220b.c 2011-04-21 13:19:09.878432930 +0200 ++++ b/arch/arm/mach-gemini/board-nas4220b.c 2011-04-21 13:30:37.555082365 +0200 +@@ -28,9 +28,27 @@ + + #include + #include ++#include + + #include "common.h" + ++static struct mdio_gpio_platform_data ib4220b_mdio = { ++ .mdc = 22, ++ .mdio = 21, ++ .phy_mask = ~(1 << 1), ++}; ++ ++static struct platform_device ib4220b_phy_device = { ++ .name = "mdio-gpio", ++ .id = 0, ++ .dev = { .platform_data = &ib4220b_mdio, }, ++}; ++ ++static struct gemini_gmac_platform_data ib4220b_gmac_data = { ++ .bus_id[0] = "gpio-0:01", ++ .interface[0] = PHY_INTERFACE_MODE_RGMII, ++}; ++ + static struct gpio_led ib4220b_leds[] = { + { + .name = "nas4220b:orange:hdd", +@@ -107,9 +125,39 @@ + }, + }; + ++static void __init ib4220b_gmac_init(void) ++{ ++ unsigned int val; ++ ++ val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_IO_DRIVING_CTRL)); ++ val |= (0x3 << GMAC0_PADS_SHIFT) | (0x3 << GMAC1_PADS_SHIFT); ++ writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_IO_DRIVING_CTRL)); ++ ++ val = (0x0 << GMAC0_RXDV_SKEW_SHIFT) | (0xf << GMAC0_RXC_SKEW_SHIFT) | ++ (0x7 << GMAC0_TXEN_SKEW_SHIFT) | (0xb << GMAC0_TXC_SKEW_SHIFT) | ++ (0x0 << GMAC1_RXDV_SKEW_SHIFT) | (0xf << GMAC1_RXC_SKEW_SHIFT) | ++ (0x7 << GMAC1_TXEN_SKEW_SHIFT) | (0xa << GMAC1_TXC_SKEW_SHIFT); ++ writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_GMAC_CTRL_SKEW_CTRL)); ++ ++ writel(0x77777777, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_GMAC0_DATA_SKEW_CTRL)); ++ writel(0x77777777, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_GMAC1_DATA_SKEW_CTRL)); ++ ++ val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_ARBITRATION1_CTRL)) & ~BURST_LENGTH_MASK; ++ val |= (0x20 << BURST_LENGTH_SHIFT) | GMAC0_HIGH_PRIO | GMAC1_HIGH_PRIO; ++ writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) + ++ GLOBAL_ARBITRATION1_CTRL)); ++} ++ + static void __init ib4220b_init(void) + { + gemini_gpio_init(); ++ ib4220b_gmac_init(); + platform_register_uart(); + platform_register_pflash(SZ_16M, NULL, 0); + platform_device_register(&ib4220b_led_device); +@@ -96,6 +144,8 @@ + platform_device_register(&ib4220b_key_device); + platform_register_rtc(); + platform_register_watchdog(); ++ platform_device_register(&ib4220b_phy_device); ++ platform_register_ethernet(&ib4220b_gmac_data); + } + + MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B") diff --git a/target/linux/gemini/patches-3.10/135-arm-gemini-nas4220-register-usb.patch b/target/linux/gemini/patches-3.10/135-arm-gemini-nas4220-register-usb.patch index e08c889d4b..078c6c2f55 100644 --- a/target/linux/gemini/patches-3.10/135-arm-gemini-nas4220-register-usb.patch +++ b/target/linux/gemini/patches-3.10/135-arm-gemini-nas4220-register-usb.patch @@ -1,9 +1,9 @@ --- a/arch/arm/mach-gemini/board-nas4220b.c +++ b/arch/arm/mach-gemini/board-nas4220b.c -@@ -96,6 +96,8 @@ static void __init ib4220b_init(void) - platform_device_register(&ib4220b_key_device); - platform_register_rtc(); +@@ -146,6 +146,8 @@ static void __init ib4220b_init(void) platform_register_watchdog(); + platform_device_register(&ib4220b_phy_device); + platform_register_ethernet(&ib4220b_gmac_data); + platform_register_usb(0); + platform_register_usb(1); }