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OpenCloudOS-Kernel/drivers/net/ethernet/broadcom/genet/bcmgenet.h

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/*
* Copyright (c) 2014 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __BCMGENET_H__
#define __BCMGENET_H__
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/clk.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <linux/phy.h>
/* total number of Buffer Descriptors, same for Rx/Tx */
#define TOTAL_DESC 256
/* which ring is descriptor based */
#define DESC_INDEX 16
/* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(6) + FCS(4) = 1528.
* 1536 is multiple of 256 bytes
*/
#define ENET_BRCM_TAG_LEN 6
#define ENET_PAD 8
#define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \
ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD)
#define DMA_MAX_BURST_LENGTH 0x10
/* misc. configuration */
#define CLEAR_ALL_HFB 0xFF
#define DMA_FC_THRESH_HI (TOTAL_DESC >> 4)
#define DMA_FC_THRESH_LO 5
/* 64B receive/transmit status block */
struct status_64 {
u32 length_status; /* length and peripheral status */
u32 ext_status; /* Extended status*/
u32 rx_csum; /* partial rx checksum */
u32 unused1[9]; /* unused */
u32 tx_csum_info; /* Tx checksum info. */
u32 unused2[3]; /* unused */
};
/* Rx status bits */
#define STATUS_RX_EXT_MASK 0x1FFFFF
#define STATUS_RX_CSUM_MASK 0xFFFF
#define STATUS_RX_CSUM_OK 0x10000
#define STATUS_RX_CSUM_FR 0x20000
#define STATUS_RX_PROTO_TCP 0
#define STATUS_RX_PROTO_UDP 1
#define STATUS_RX_PROTO_ICMP 2
#define STATUS_RX_PROTO_OTHER 3
#define STATUS_RX_PROTO_MASK 3
#define STATUS_RX_PROTO_SHIFT 18
#define STATUS_FILTER_INDEX_MASK 0xFFFF
/* Tx status bits */
#define STATUS_TX_CSUM_START_MASK 0X7FFF
#define STATUS_TX_CSUM_START_SHIFT 16
#define STATUS_TX_CSUM_PROTO_UDP 0x8000
#define STATUS_TX_CSUM_OFFSET_MASK 0x7FFF
#define STATUS_TX_CSUM_LV 0x80000000
/* DMA Descriptor */
#define DMA_DESC_LENGTH_STATUS 0x00 /* in bytes of data in buffer */
#define DMA_DESC_ADDRESS_LO 0x04 /* lower bits of PA */
#define DMA_DESC_ADDRESS_HI 0x08 /* upper 32 bits of PA, GENETv4+ */
/* Rx/Tx common counter group */
struct bcmgenet_pkt_counters {
u32 cnt_64; /* RO Received/Transmited 64 bytes packet */
u32 cnt_127; /* RO Rx/Tx 127 bytes packet */
u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */
u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */
u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */
u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */
u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */
u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/
u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/
u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/
};
/* RSV, Receive Status Vector */
struct bcmgenet_rx_counters {
struct bcmgenet_pkt_counters pkt_cnt;
u32 pkt; /* RO (0x428) Received pkt count*/
u32 bytes; /* RO Received byte count */
u32 mca; /* RO # of Received multicast pkt */
u32 bca; /* RO # of Receive broadcast pkt */
u32 fcs; /* RO # of Received FCS error */
u32 cf; /* RO # of Received control frame pkt*/
u32 pf; /* RO # of Received pause frame pkt */
u32 uo; /* RO # of unknown op code pkt */
u32 aln; /* RO # of alignment error count */
u32 flr; /* RO # of frame length out of range count */
u32 cde; /* RO # of code error pkt */
u32 fcr; /* RO # of carrier sense error pkt */
u32 ovr; /* RO # of oversize pkt*/
u32 jbr; /* RO # of jabber count */
u32 mtue; /* RO # of MTU error pkt*/
u32 pok; /* RO # of Received good pkt */
u32 uc; /* RO # of unicast pkt */
u32 ppp; /* RO # of PPP pkt */
u32 rcrc; /* RO (0x470),# of CRC match pkt */
};
/* TSV, Transmit Status Vector */
struct bcmgenet_tx_counters {
struct bcmgenet_pkt_counters pkt_cnt;
u32 pkts; /* RO (0x4a8) Transmited pkt */
u32 mca; /* RO # of xmited multicast pkt */
u32 bca; /* RO # of xmited broadcast pkt */
u32 pf; /* RO # of xmited pause frame count */
u32 cf; /* RO # of xmited control frame count */
u32 fcs; /* RO # of xmited FCS error count */
u32 ovr; /* RO # of xmited oversize pkt */
u32 drf; /* RO # of xmited deferral pkt */
u32 edf; /* RO # of xmited Excessive deferral pkt*/
u32 scl; /* RO # of xmited single collision pkt */
u32 mcl; /* RO # of xmited multiple collision pkt*/
u32 lcl; /* RO # of xmited late collision pkt */
u32 ecl; /* RO # of xmited excessive collision pkt*/
u32 frg; /* RO # of xmited fragments pkt*/
u32 ncl; /* RO # of xmited total collision count */
u32 jbr; /* RO # of xmited jabber count*/
u32 bytes; /* RO # of xmited byte count */
u32 pok; /* RO # of xmited good pkt */
u32 uc; /* RO (0x0x4f0)# of xmited unitcast pkt */
};
struct bcmgenet_mib_counters {
struct bcmgenet_rx_counters rx;
struct bcmgenet_tx_counters tx;
u32 rx_runt_cnt;
u32 rx_runt_fcs;
u32 rx_runt_fcs_align;
u32 rx_runt_bytes;
u32 rbuf_ovflow_cnt;
u32 rbuf_err_cnt;
u32 mdf_err_cnt;
u32 alloc_rx_buff_failed;
u32 rx_dma_failed;
u32 tx_dma_failed;
};
#define UMAC_HD_BKP_CTRL 0x004
#define HD_FC_EN (1 << 0)
#define HD_FC_BKOFF_OK (1 << 1)
#define IPG_CONFIG_RX_SHIFT 2
#define IPG_CONFIG_RX_MASK 0x1F
#define UMAC_CMD 0x008
#define CMD_TX_EN (1 << 0)
#define CMD_RX_EN (1 << 1)
#define UMAC_SPEED_10 0
#define UMAC_SPEED_100 1
#define UMAC_SPEED_1000 2
#define UMAC_SPEED_2500 3
#define CMD_SPEED_SHIFT 2
#define CMD_SPEED_MASK 3
#define CMD_PROMISC (1 << 4)
#define CMD_PAD_EN (1 << 5)
#define CMD_CRC_FWD (1 << 6)
#define CMD_PAUSE_FWD (1 << 7)
#define CMD_RX_PAUSE_IGNORE (1 << 8)
#define CMD_TX_ADDR_INS (1 << 9)
#define CMD_HD_EN (1 << 10)
#define CMD_SW_RESET (1 << 13)
#define CMD_LCL_LOOP_EN (1 << 15)
#define CMD_AUTO_CONFIG (1 << 22)
#define CMD_CNTL_FRM_EN (1 << 23)
#define CMD_NO_LEN_CHK (1 << 24)
#define CMD_RMT_LOOP_EN (1 << 25)
#define CMD_PRBL_EN (1 << 27)
#define CMD_TX_PAUSE_IGNORE (1 << 28)
#define CMD_TX_RX_EN (1 << 29)
#define CMD_RUNT_FILTER_DIS (1 << 30)
#define UMAC_MAC0 0x00C
#define UMAC_MAC1 0x010
#define UMAC_MAX_FRAME_LEN 0x014
#define UMAC_EEE_CTRL 0x064
#define EN_LPI_RX_PAUSE (1 << 0)
#define EN_LPI_TX_PFC (1 << 1)
#define EN_LPI_TX_PAUSE (1 << 2)
#define EEE_EN (1 << 3)
#define RX_FIFO_CHECK (1 << 4)
#define EEE_TX_CLK_DIS (1 << 5)
#define DIS_EEE_10M (1 << 6)
#define LP_IDLE_PREDICTION_MODE (1 << 7)
#define UMAC_EEE_LPI_TIMER 0x068
#define UMAC_EEE_WAKE_TIMER 0x06C
#define UMAC_EEE_REF_COUNT 0x070
#define EEE_REFERENCE_COUNT_MASK 0xffff
#define UMAC_TX_FLUSH 0x334
#define UMAC_MIB_START 0x400
#define UMAC_MDIO_CMD 0x614
#define MDIO_START_BUSY (1 << 29)
#define MDIO_READ_FAIL (1 << 28)
#define MDIO_RD (2 << 26)
#define MDIO_WR (1 << 26)
#define MDIO_PMD_SHIFT 21
#define MDIO_PMD_MASK 0x1F
#define MDIO_REG_SHIFT 16
#define MDIO_REG_MASK 0x1F
#define UMAC_RBUF_OVFL_CNT 0x61C
#define UMAC_MPD_CTRL 0x620
#define MPD_EN (1 << 0)
#define MPD_PW_EN (1 << 27)
#define MPD_MSEQ_LEN_SHIFT 16
#define MPD_MSEQ_LEN_MASK 0xFF
#define UMAC_MPD_PW_MS 0x624
#define UMAC_MPD_PW_LS 0x628
#define UMAC_RBUF_ERR_CNT 0x634
#define UMAC_MDF_ERR_CNT 0x638
#define UMAC_MDF_CTRL 0x650
#define UMAC_MDF_ADDR 0x654
#define UMAC_MIB_CTRL 0x580
#define MIB_RESET_RX (1 << 0)
#define MIB_RESET_RUNT (1 << 1)
#define MIB_RESET_TX (1 << 2)
#define RBUF_CTRL 0x00
#define RBUF_64B_EN (1 << 0)
#define RBUF_ALIGN_2B (1 << 1)
#define RBUF_BAD_DIS (1 << 2)
#define RBUF_STATUS 0x0C
#define RBUF_STATUS_WOL (1 << 0)
#define RBUF_STATUS_MPD_INTR_ACTIVE (1 << 1)
#define RBUF_STATUS_ACPI_INTR_ACTIVE (1 << 2)
#define RBUF_CHK_CTRL 0x14
#define RBUF_RXCHK_EN (1 << 0)
#define RBUF_SKIP_FCS (1 << 4)
#define RBUF_ENERGY_CTRL 0x9c
#define RBUF_EEE_EN (1 << 0)
#define RBUF_PM_EN (1 << 1)
#define RBUF_TBUF_SIZE_CTRL 0xb4
#define RBUF_HFB_CTRL_V1 0x38
#define RBUF_HFB_FILTER_EN_SHIFT 16
#define RBUF_HFB_FILTER_EN_MASK 0xffff0000
#define RBUF_HFB_EN (1 << 0)
#define RBUF_HFB_256B (1 << 1)
#define RBUF_ACPI_EN (1 << 2)
#define RBUF_HFB_LEN_V1 0x3C
#define RBUF_FLTR_LEN_MASK 0xFF
#define RBUF_FLTR_LEN_SHIFT 8
#define TBUF_CTRL 0x00
#define TBUF_BP_MC 0x0C
#define TBUF_ENERGY_CTRL 0x14
#define TBUF_EEE_EN (1 << 0)
#define TBUF_PM_EN (1 << 1)
#define TBUF_CTRL_V1 0x80
#define TBUF_BP_MC_V1 0xA0
#define HFB_CTRL 0x00
#define HFB_FLT_ENABLE_V3PLUS 0x04
#define HFB_FLT_LEN_V2 0x04
#define HFB_FLT_LEN_V3PLUS 0x1C
/* uniMac intrl2 registers */
#define INTRL2_CPU_STAT 0x00
#define INTRL2_CPU_SET 0x04
#define INTRL2_CPU_CLEAR 0x08
#define INTRL2_CPU_MASK_STATUS 0x0C
#define INTRL2_CPU_MASK_SET 0x10
#define INTRL2_CPU_MASK_CLEAR 0x14
/* INTRL2 instance 0 definitions */
#define UMAC_IRQ_SCB (1 << 0)
#define UMAC_IRQ_EPHY (1 << 1)
#define UMAC_IRQ_PHY_DET_R (1 << 2)
#define UMAC_IRQ_PHY_DET_F (1 << 3)
#define UMAC_IRQ_LINK_UP (1 << 4)
#define UMAC_IRQ_LINK_DOWN (1 << 5)
#define UMAC_IRQ_LINK_EVENT (UMAC_IRQ_LINK_UP | UMAC_IRQ_LINK_DOWN)
#define UMAC_IRQ_UMAC (1 << 6)
#define UMAC_IRQ_UMAC_TSV (1 << 7)
#define UMAC_IRQ_TBUF_UNDERRUN (1 << 8)
#define UMAC_IRQ_RBUF_OVERFLOW (1 << 9)
#define UMAC_IRQ_HFB_SM (1 << 10)
#define UMAC_IRQ_HFB_MM (1 << 11)
#define UMAC_IRQ_MPD_R (1 << 12)
#define UMAC_IRQ_RXDMA_MBDONE (1 << 13)
#define UMAC_IRQ_RXDMA_PDONE (1 << 14)
#define UMAC_IRQ_RXDMA_BDONE (1 << 15)
#define UMAC_IRQ_RXDMA_DONE UMAC_IRQ_RXDMA_MBDONE
#define UMAC_IRQ_TXDMA_MBDONE (1 << 16)
#define UMAC_IRQ_TXDMA_PDONE (1 << 17)
#define UMAC_IRQ_TXDMA_BDONE (1 << 18)
#define UMAC_IRQ_TXDMA_DONE UMAC_IRQ_TXDMA_MBDONE
/* Only valid for GENETv3+ */
#define UMAC_IRQ_MDIO_DONE (1 << 23)
#define UMAC_IRQ_MDIO_ERROR (1 << 24)
/* INTRL2 instance 1 definitions */
#define UMAC_IRQ1_TX_INTR_MASK 0xFFFF
#define UMAC_IRQ1_RX_INTR_MASK 0xFFFF
#define UMAC_IRQ1_RX_INTR_SHIFT 16
/* Register block offsets */
#define GENET_SYS_OFF 0x0000
#define GENET_GR_BRIDGE_OFF 0x0040
#define GENET_EXT_OFF 0x0080
#define GENET_INTRL2_0_OFF 0x0200
#define GENET_INTRL2_1_OFF 0x0240
#define GENET_RBUF_OFF 0x0300
#define GENET_UMAC_OFF 0x0800
/* SYS block offsets and register definitions */
#define SYS_REV_CTRL 0x00
#define SYS_PORT_CTRL 0x04
#define PORT_MODE_INT_EPHY 0
#define PORT_MODE_INT_GPHY 1
#define PORT_MODE_EXT_EPHY 2
#define PORT_MODE_EXT_GPHY 3
#define PORT_MODE_EXT_RVMII_25 (4 | BIT(4))
#define PORT_MODE_EXT_RVMII_50 4
#define LED_ACT_SOURCE_MAC (1 << 9)
#define SYS_RBUF_FLUSH_CTRL 0x08
#define SYS_TBUF_FLUSH_CTRL 0x0C
#define RBUF_FLUSH_CTRL_V1 0x04
/* Ext block register offsets and definitions */
#define EXT_EXT_PWR_MGMT 0x00
#define EXT_PWR_DOWN_BIAS (1 << 0)
#define EXT_PWR_DOWN_DLL (1 << 1)
#define EXT_PWR_DOWN_PHY (1 << 2)
#define EXT_PWR_DN_EN_LD (1 << 3)
#define EXT_ENERGY_DET (1 << 4)
#define EXT_IDDQ_FROM_PHY (1 << 5)
#define EXT_PHY_RESET (1 << 8)
#define EXT_ENERGY_DET_MASK (1 << 12)
#define EXT_RGMII_OOB_CTRL 0x0C
#define RGMII_LINK (1 << 4)
#define OOB_DISABLE (1 << 5)
#define RGMII_MODE_EN (1 << 6)
#define ID_MODE_DIS (1 << 16)
#define EXT_GPHY_CTRL 0x1C
#define EXT_CFG_IDDQ_BIAS (1 << 0)
#define EXT_CFG_PWR_DOWN (1 << 1)
#define EXT_CK25_DIS (1 << 4)
#define EXT_GPHY_RESET (1 << 5)
/* DMA rings size */
#define DMA_RING_SIZE (0x40)
#define DMA_RINGS_SIZE (DMA_RING_SIZE * (DESC_INDEX + 1))
/* DMA registers common definitions */
#define DMA_RW_POINTER_MASK 0x1FF
#define DMA_P_INDEX_DISCARD_CNT_MASK 0xFFFF
#define DMA_P_INDEX_DISCARD_CNT_SHIFT 16
#define DMA_BUFFER_DONE_CNT_MASK 0xFFFF
#define DMA_BUFFER_DONE_CNT_SHIFT 16
#define DMA_P_INDEX_MASK 0xFFFF
#define DMA_C_INDEX_MASK 0xFFFF
/* DMA ring size register */
#define DMA_RING_SIZE_MASK 0xFFFF
#define DMA_RING_SIZE_SHIFT 16
#define DMA_RING_BUFFER_SIZE_MASK 0xFFFF
/* DMA interrupt threshold register */
#define DMA_INTR_THRESHOLD_MASK 0x01FF
/* DMA XON/XOFF register */
#define DMA_XON_THREHOLD_MASK 0xFFFF
#define DMA_XOFF_THRESHOLD_MASK 0xFFFF
#define DMA_XOFF_THRESHOLD_SHIFT 16
/* DMA flow period register */
#define DMA_FLOW_PERIOD_MASK 0xFFFF
#define DMA_MAX_PKT_SIZE_MASK 0xFFFF
#define DMA_MAX_PKT_SIZE_SHIFT 16
/* DMA control register */
#define DMA_EN (1 << 0)
#define DMA_RING_BUF_EN_SHIFT 0x01
#define DMA_RING_BUF_EN_MASK 0xFFFF
#define DMA_TSB_SWAP_EN (1 << 20)
/* DMA status register */
#define DMA_DISABLED (1 << 0)
#define DMA_DESC_RAM_INIT_BUSY (1 << 1)
/* DMA SCB burst size register */
#define DMA_SCB_BURST_SIZE_MASK 0x1F
/* DMA activity vector register */
#define DMA_ACTIVITY_VECTOR_MASK 0x1FFFF
/* DMA backpressure mask register */
#define DMA_BACKPRESSURE_MASK 0x1FFFF
#define DMA_PFC_ENABLE (1 << 31)
/* DMA backpressure status register */
#define DMA_BACKPRESSURE_STATUS_MASK 0x1FFFF
/* DMA override register */
#define DMA_LITTLE_ENDIAN_MODE (1 << 0)
#define DMA_REGISTER_MODE (1 << 1)
/* DMA timeout register */
#define DMA_TIMEOUT_MASK 0xFFFF
#define DMA_TIMEOUT_VAL 5000 /* micro seconds */
/* TDMA rate limiting control register */
#define DMA_RATE_LIMIT_EN_MASK 0xFFFF
/* TDMA arbitration control register */
#define DMA_ARBITER_MODE_MASK 0x03
#define DMA_RING_BUF_PRIORITY_MASK 0x1F
#define DMA_RING_BUF_PRIORITY_SHIFT 5
#define DMA_PRIO_REG_INDEX(q) ((q) / 6)
#define DMA_PRIO_REG_SHIFT(q) (((q) % 6) * DMA_RING_BUF_PRIORITY_SHIFT)
#define DMA_RATE_ADJ_MASK 0xFF
/* Tx/Rx Dma Descriptor common bits*/
#define DMA_BUFLENGTH_MASK 0x0fff
#define DMA_BUFLENGTH_SHIFT 16
#define DMA_OWN 0x8000
#define DMA_EOP 0x4000
#define DMA_SOP 0x2000
#define DMA_WRAP 0x1000
/* Tx specific Dma descriptor bits */
#define DMA_TX_UNDERRUN 0x0200
#define DMA_TX_APPEND_CRC 0x0040
#define DMA_TX_OW_CRC 0x0020
#define DMA_TX_DO_CSUM 0x0010
#define DMA_TX_QTAG_SHIFT 7
/* Rx Specific Dma descriptor bits */
#define DMA_RX_CHK_V3PLUS 0x8000
#define DMA_RX_CHK_V12 0x1000
#define DMA_RX_BRDCAST 0x0040
#define DMA_RX_MULT 0x0020
#define DMA_RX_LG 0x0010
#define DMA_RX_NO 0x0008
#define DMA_RX_RXER 0x0004
#define DMA_RX_CRC_ERROR 0x0002
#define DMA_RX_OV 0x0001
#define DMA_RX_FI_MASK 0x001F
#define DMA_RX_FI_SHIFT 0x0007
#define DMA_DESC_ALLOC_MASK 0x00FF
#define DMA_ARBITER_RR 0x00
#define DMA_ARBITER_WRR 0x01
#define DMA_ARBITER_SP 0x02
struct enet_cb {
struct sk_buff *skb;
void __iomem *bd_addr;
DEFINE_DMA_UNMAP_ADDR(dma_addr);
DEFINE_DMA_UNMAP_LEN(dma_len);
};
/* power management mode */
enum bcmgenet_power_mode {
GENET_POWER_CABLE_SENSE = 0,
GENET_POWER_PASSIVE,
GENET_POWER_WOL_MAGIC,
};
struct bcmgenet_priv;
/* We support both runtime GENET detection and compile-time
* to optimize code-paths for a given hardware
*/
enum bcmgenet_version {
GENET_V1 = 1,
GENET_V2,
GENET_V3,
GENET_V4
};
#define GENET_IS_V1(p) ((p)->version == GENET_V1)
#define GENET_IS_V2(p) ((p)->version == GENET_V2)
#define GENET_IS_V3(p) ((p)->version == GENET_V3)
#define GENET_IS_V4(p) ((p)->version == GENET_V4)
/* Hardware flags */
#define GENET_HAS_40BITS (1 << 0)
#define GENET_HAS_EXT (1 << 1)
#define GENET_HAS_MDIO_INTR (1 << 2)
#define GENET_HAS_MOCA_LINK_DET (1 << 3)
/* BCMGENET hardware parameters, keep this structure nicely aligned
* since it is going to be used in hot paths
*/
struct bcmgenet_hw_params {
u8 tx_queues;
u8 tx_bds_per_q;
u8 rx_queues;
u8 rx_bds_per_q;
u8 bp_in_en_shift;
u32 bp_in_mask;
u8 hfb_filter_cnt;
u8 hfb_filter_size;
u8 qtag_mask;
u16 tbuf_offset;
u32 hfb_offset;
u32 hfb_reg_offset;
u32 rdma_offset;
u32 tdma_offset;
u32 words_per_bd;
u32 flags;
};
struct bcmgenet_tx_ring {
spinlock_t lock; /* ring lock */
struct napi_struct napi; /* NAPI per tx queue */
unsigned int index; /* ring index */
unsigned int queue; /* queue index */
struct enet_cb *cbs; /* tx ring buffer control block*/
unsigned int size; /* size of each tx ring */
unsigned int clean_ptr; /* Tx ring clean pointer */
unsigned int c_index; /* last consumer index of each ring*/
unsigned int free_bds; /* # of free bds for each ring */
unsigned int write_ptr; /* Tx ring write pointer SW copy */
unsigned int prod_index; /* Tx ring producer index SW copy */
unsigned int cb_ptr; /* Tx ring initial CB ptr */
unsigned int end_ptr; /* Tx ring end CB ptr */
void (*int_enable)(struct bcmgenet_tx_ring *);
void (*int_disable)(struct bcmgenet_tx_ring *);
struct bcmgenet_priv *priv;
};
struct bcmgenet_rx_ring {
struct napi_struct napi; /* Rx NAPI struct */
unsigned int index; /* Rx ring index */
struct enet_cb *cbs; /* Rx ring buffer control block */
unsigned int size; /* Rx ring size */
unsigned int c_index; /* Rx last consumer index */
unsigned int read_ptr; /* Rx ring read pointer */
unsigned int cb_ptr; /* Rx ring initial CB ptr */
unsigned int end_ptr; /* Rx ring end CB ptr */
unsigned int old_discards;
void (*int_enable)(struct bcmgenet_rx_ring *);
void (*int_disable)(struct bcmgenet_rx_ring *);
struct bcmgenet_priv *priv;
};
/* device context */
struct bcmgenet_priv {
void __iomem *base;
enum bcmgenet_version version;
struct net_device *dev;
/* transmit variables */
void __iomem *tx_bds;
struct enet_cb *tx_cbs;
unsigned int num_tx_bds;
struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1];
/* receive variables */
void __iomem *rx_bds;
struct enet_cb *rx_cbs;
unsigned int num_rx_bds;
unsigned int rx_buf_len;
struct bcmgenet_rx_ring rx_rings[DESC_INDEX + 1];
/* other misc variables */
struct bcmgenet_hw_params *hw_params;
/* MDIO bus variables */
wait_queue_head_t wq;
struct phy_device *phydev;
bool internal_phy;
struct device_node *phy_dn;
struct device_node *mdio_dn;
struct mii_bus *mii_bus;
u16 gphy_rev;
struct clk *clk_eee;
bool clk_eee_enabled;
/* PHY device variables */
int old_link;
int old_speed;
int old_duplex;
int old_pause;
phy_interface_t phy_interface;
int phy_addr;
int ext_phy;
/* Interrupt variables */
struct work_struct bcmgenet_irq_work;
int irq0;
int irq1;
unsigned int irq0_stat;
unsigned int irq1_stat;
int wol_irq;
bool wol_irq_disabled;
/* HW descriptors/checksum variables */
bool desc_64b_en;
bool desc_rxchk_en;
bool crc_fwd_en;
unsigned int dma_rx_chk_bit;
u32 msg_enable;
struct clk *clk;
struct platform_device *pdev;
/* WOL */
struct clk *clk_wol;
u32 wolopts;
struct bcmgenet_mib_counters mib;
struct ethtool_eee eee;
};
#define GENET_IO_MACRO(name, offset) \
static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \
u32 off) \
{ \
return __raw_readl(priv->base + offset + off); \
} \
static inline void bcmgenet_##name##_writel(struct bcmgenet_priv *priv, \
u32 val, u32 off) \
{ \
__raw_writel(val, priv->base + offset + off); \
}
GENET_IO_MACRO(ext, GENET_EXT_OFF);
GENET_IO_MACRO(umac, GENET_UMAC_OFF);
GENET_IO_MACRO(sys, GENET_SYS_OFF);
/* interrupt l2 registers accessors */
GENET_IO_MACRO(intrl2_0, GENET_INTRL2_0_OFF);
GENET_IO_MACRO(intrl2_1, GENET_INTRL2_1_OFF);
/* HFB register accessors */
GENET_IO_MACRO(hfb, priv->hw_params->hfb_offset);
/* GENET v2+ HFB control and filter len helpers */
GENET_IO_MACRO(hfb_reg, priv->hw_params->hfb_reg_offset);
/* RBUF register accessors */
GENET_IO_MACRO(rbuf, GENET_RBUF_OFF);
/* MDIO routines */
int bcmgenet_mii_init(struct net_device *dev);
int bcmgenet_mii_config(struct net_device *dev);
int bcmgenet_mii_probe(struct net_device *dev);
void bcmgenet_mii_exit(struct net_device *dev);
void bcmgenet_mii_reset(struct net_device *dev);
void bcmgenet_phy_power_set(struct net_device *dev, bool enable);
void bcmgenet_mii_setup(struct net_device *dev);
/* Wake-on-LAN routines */
void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol);
int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode);
void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode);
#endif /* __BCMGENET_H__ */
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