/* SPDX-License-Identifier: GPL-2.0-only */ /* * Dave DNET Ethernet Controller driver * * Copyright (C) 2008 Dave S.r.l. <www.dave.eu> */ #ifndef _DNET_H #define _DNET_H #define DRV_NAME "dnet" #define PFX DRV_NAME ": " /* Register access macros */ #define dnet_writel(port, value, reg) \ writel((value), (port)->regs + DNET_##reg) #define dnet_readl(port, reg) readl((port)->regs + DNET_##reg) /* ALL DNET FIFO REGISTERS */ #define DNET_RX_LEN_FIFO 0x000 /* RX_LEN_FIFO */ #define DNET_RX_DATA_FIFO 0x004 /* RX_DATA_FIFO */ #define DNET_TX_LEN_FIFO 0x008 /* TX_LEN_FIFO */ #define DNET_TX_DATA_FIFO 0x00C /* TX_DATA_FIFO */ /* ALL DNET CONTROL/STATUS REGISTERS OFFSETS */ #define DNET_VERCAPS 0x100 /* VERCAPS */ #define DNET_INTR_SRC 0x104 /* INTR_SRC */ #define DNET_INTR_ENB 0x108 /* INTR_ENB */ #define DNET_RX_STATUS 0x10C /* RX_STATUS */ #define DNET_TX_STATUS 0x110 /* TX_STATUS */ #define DNET_RX_FRAMES_CNT 0x114 /* RX_FRAMES_CNT */ #define DNET_TX_FRAMES_CNT 0x118 /* TX_FRAMES_CNT */ #define DNET_RX_FIFO_TH 0x11C /* RX_FIFO_TH */ #define DNET_TX_FIFO_TH 0x120 /* TX_FIFO_TH */ #define DNET_SYS_CTL 0x124 /* SYS_CTL */ #define DNET_PAUSE_TMR 0x128 /* PAUSE_TMR */ #define DNET_RX_FIFO_WCNT 0x12C /* RX_FIFO_WCNT */ #define DNET_TX_FIFO_WCNT 0x130 /* TX_FIFO_WCNT */ /* ALL DNET MAC REGISTERS */ #define DNET_MACREG_DATA 0x200 /* Mac-Reg Data */ #define DNET_MACREG_ADDR 0x204 /* Mac-Reg Addr */ /* ALL DNET RX STATISTICS COUNTERS */ #define DNET_RX_PKT_IGNR_CNT 0x300 #define DNET_RX_LEN_CHK_ERR_CNT 0x304 #define DNET_RX_LNG_FRM_CNT 0x308 #define DNET_RX_SHRT_FRM_CNT 0x30C #define DNET_RX_IPG_VIOL_CNT 0x310 #define DNET_RX_CRC_ERR_CNT 0x314 #define DNET_RX_OK_PKT_CNT 0x318 #define DNET_RX_CTL_FRM_CNT 0x31C #define DNET_RX_PAUSE_FRM_CNT 0x320 #define DNET_RX_MULTICAST_CNT 0x324 #define DNET_RX_BROADCAST_CNT 0x328 #define DNET_RX_VLAN_TAG_CNT 0x32C #define DNET_RX_PRE_SHRINK_CNT 0x330 #define DNET_RX_DRIB_NIB_CNT 0x334 #define DNET_RX_UNSUP_OPCD_CNT 0x338 #define DNET_RX_BYTE_CNT 0x33C /* DNET TX STATISTICS COUNTERS */ #define DNET_TX_UNICAST_CNT 0x400 #define DNET_TX_PAUSE_FRM_CNT 0x404 #define DNET_TX_MULTICAST_CNT 0x408 #define DNET_TX_BRDCAST_CNT 0x40C #define DNET_TX_VLAN_TAG_CNT 0x410 #define DNET_TX_BAD_FCS_CNT 0x414 #define DNET_TX_JUMBO_CNT 0x418 #define DNET_TX_BYTE_CNT 0x41C /* SOME INTERNAL MAC-CORE REGISTER */ #define DNET_INTERNAL_MODE_REG 0x0 #define DNET_INTERNAL_RXTX_CONTROL_REG 0x2 #define DNET_INTERNAL_MAX_PKT_SIZE_REG 0x4 #define DNET_INTERNAL_IGP_REG 0x8 #define DNET_INTERNAL_MAC_ADDR_0_REG 0xa #define DNET_INTERNAL_MAC_ADDR_1_REG 0xc #define DNET_INTERNAL_MAC_ADDR_2_REG 0xe #define DNET_INTERNAL_TX_RX_STS_REG 0x12 #define DNET_INTERNAL_GMII_MNG_CTL_REG 0x14 #define DNET_INTERNAL_GMII_MNG_DAT_REG 0x16 #define DNET_INTERNAL_GMII_MNG_CMD_FIN (1 << 14) #define DNET_INTERNAL_WRITE (1 << 31) /* MAC-CORE REGISTER FIELDS */ /* MAC-CORE MODE REGISTER FIELDS */ #define DNET_INTERNAL_MODE_GBITEN (1 << 0) #define DNET_INTERNAL_MODE_FCEN (1 << 1) #define DNET_INTERNAL_MODE_RXEN (1 << 2) #define DNET_INTERNAL_MODE_TXEN (1 << 3) /* MAC-CORE RXTX CONTROL REGISTER FIELDS */ #define DNET_INTERNAL_RXTX_CONTROL_RXSHORTFRAME (1 << 8) #define DNET_INTERNAL_RXTX_CONTROL_RXBROADCAST (1 << 7) #define DNET_INTERNAL_RXTX_CONTROL_RXMULTICAST (1 << 4) #define DNET_INTERNAL_RXTX_CONTROL_RXPAUSE (1 << 3) #define DNET_INTERNAL_RXTX_CONTROL_DISTXFCS (1 << 2) #define DNET_INTERNAL_RXTX_CONTROL_DISCFXFCS (1 << 1) #define DNET_INTERNAL_RXTX_CONTROL_ENPROMISC (1 << 0) #define DNET_INTERNAL_RXTX_CONTROL_DROPCONTROL (1 << 6) #define DNET_INTERNAL_RXTX_CONTROL_ENABLEHALFDUP (1 << 5) /* SYSTEM CONTROL REGISTER FIELDS */ #define DNET_SYS_CTL_IGNORENEXTPKT (1 << 0) #define DNET_SYS_CTL_SENDPAUSE (1 << 2) #define DNET_SYS_CTL_RXFIFOFLUSH (1 << 3) #define DNET_SYS_CTL_TXFIFOFLUSH (1 << 4) /* TX STATUS REGISTER FIELDS */ #define DNET_TX_STATUS_FIFO_ALMOST_EMPTY (1 << 2) #define DNET_TX_STATUS_FIFO_ALMOST_FULL (1 << 1) /* INTERRUPT SOURCE REGISTER FIELDS */ #define DNET_INTR_SRC_TX_PKTSENT (1 << 0) #define DNET_INTR_SRC_TX_FIFOAF (1 << 1) #define DNET_INTR_SRC_TX_FIFOAE (1 << 2) #define DNET_INTR_SRC_TX_DISCFRM (1 << 3) #define DNET_INTR_SRC_TX_FIFOFULL (1 << 4) #define DNET_INTR_SRC_RX_CMDFIFOAF (1 << 8) #define DNET_INTR_SRC_RX_CMDFIFOFF (1 << 9) #define DNET_INTR_SRC_RX_DATAFIFOFF (1 << 10) #define DNET_INTR_SRC_TX_SUMMARY (1 << 16) #define DNET_INTR_SRC_RX_SUMMARY (1 << 17) #define DNET_INTR_SRC_PHY (1 << 19) /* INTERRUPT ENABLE REGISTER FIELDS */ #define DNET_INTR_ENB_TX_PKTSENT (1 << 0) #define DNET_INTR_ENB_TX_FIFOAF (1 << 1) #define DNET_INTR_ENB_TX_FIFOAE (1 << 2) #define DNET_INTR_ENB_TX_DISCFRM (1 << 3) #define DNET_INTR_ENB_TX_FIFOFULL (1 << 4) #define DNET_INTR_ENB_RX_PKTRDY (1 << 8) #define DNET_INTR_ENB_RX_FIFOAF (1 << 9) #define DNET_INTR_ENB_RX_FIFOERR (1 << 10) #define DNET_INTR_ENB_RX_ERROR (1 << 11) #define DNET_INTR_ENB_RX_FIFOFULL (1 << 12) #define DNET_INTR_ENB_RX_FIFOAE (1 << 13) #define DNET_INTR_ENB_TX_SUMMARY (1 << 16) #define DNET_INTR_ENB_RX_SUMMARY (1 << 17) #define DNET_INTR_ENB_GLOBAL_ENABLE (1 << 18) /* default values: * almost empty = less than one full sized ethernet frame (no jumbo) inside * the fifo almost full = can write less than one full sized ethernet frame * (no jumbo) inside the fifo */ #define DNET_CFG_TX_FIFO_FULL_THRES 25 #define DNET_CFG_RX_FIFO_FULL_THRES 20 /* * Capabilities. Used by the driver to know the capabilities that the ethernet * controller inside the FPGA have. */ #define DNET_HAS_MDIO (1 << 0) #define DNET_HAS_IRQ (1 << 1) #define DNET_HAS_GIGABIT (1 << 2) #define DNET_HAS_DMA (1 << 3) #define DNET_HAS_MII (1 << 4) /* or GMII */ #define DNET_HAS_RMII (1 << 5) /* or RGMII */ #define DNET_CAPS_MASK 0xFFFF #define DNET_FIFO_SIZE 1024 /* 1K x 32 bit */ #define DNET_FIFO_TX_DATA_AF_TH (DNET_FIFO_SIZE - 384) /* 384 = 1536 / 4 */ #define DNET_FIFO_TX_DATA_AE_TH 384 #define DNET_FIFO_RX_CMD_AF_TH (1 << 16) /* just one frame inside the FIFO */ /* * Hardware-collected statistics. */ struct dnet_stats { u32 rx_pkt_ignr; u32 rx_len_chk_err; u32 rx_lng_frm; u32 rx_shrt_frm; u32 rx_ipg_viol; u32 rx_crc_err; u32 rx_ok_pkt; u32 rx_ctl_frm; u32 rx_pause_frm; u32 rx_multicast; u32 rx_broadcast; u32 rx_vlan_tag; u32 rx_pre_shrink; u32 rx_drib_nib; u32 rx_unsup_opcd; u32 rx_byte; u32 tx_unicast; u32 tx_pause_frm; u32 tx_multicast; u32 tx_brdcast; u32 tx_vlan_tag; u32 tx_bad_fcs; u32 tx_jumbo; u32 tx_byte; }; struct dnet { void __iomem *regs; spinlock_t lock; struct platform_device *pdev; struct net_device *dev; struct dnet_stats hw_stats; unsigned int capabilities; /* read from FPGA */ struct napi_struct napi; /* PHY stuff */ struct mii_bus *mii_bus; unsigned int link; unsigned int speed; unsigned int duplex; }; #endif /* _DNET_H */