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linux_dsm_epyc7002/drivers/net/pch_gbe/pch_gbe.h
Toshiharu Okada 124d770a64 pch_gbe: added the process of FIFO over run error 
This patch added the processing which should be done to hardware,
when a FIFO over run error occurred.

Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 17:31:45 -04:00

664 lines
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/*
* Copyright (C) 1999 - 2010 Intel Corporation.
* Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
*
* This code was derived from the Intel e1000e Linux driver.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _PCH_GBE_H_
#define _PCH_GBE_H_
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/mii.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/vmalloc.h>
#include <net/ip.h>
#include <net/tcp.h>
#include <net/udp.h>
/**
* pch_gbe_regs_mac_adr - Structure holding values of mac address registers
* @high Denotes the 1st to 4th byte from the initial of MAC address
* @low Denotes the 5th to 6th byte from the initial of MAC address
*/
struct pch_gbe_regs_mac_adr {
u32 high;
u32 low;
};
/**
* pch_udc_regs - Structure holding values of MAC registers
*/
struct pch_gbe_regs {
u32 INT_ST;
u32 INT_EN;
u32 MODE;
u32 RESET;
u32 TCPIP_ACC;
u32 EX_LIST;
u32 INT_ST_HOLD;
u32 PHY_INT_CTRL;
u32 MAC_RX_EN;
u32 RX_FCTRL;
u32 PAUSE_REQ;
u32 RX_MODE;
u32 TX_MODE;
u32 RX_FIFO_ST;
u32 TX_FIFO_ST;
u32 TX_FID;
u32 TX_RESULT;
u32 PAUSE_PKT1;
u32 PAUSE_PKT2;
u32 PAUSE_PKT3;
u32 PAUSE_PKT4;
u32 PAUSE_PKT5;
u32 reserve[2];
struct pch_gbe_regs_mac_adr mac_adr[16];
u32 ADDR_MASK;
u32 MIIM;
u32 MAC_ADDR_LOAD;
u32 RGMII_ST;
u32 RGMII_CTRL;
u32 reserve3[3];
u32 DMA_CTRL;
u32 reserve4[3];
u32 RX_DSC_BASE;
u32 RX_DSC_SIZE;
u32 RX_DSC_HW_P;
u32 RX_DSC_HW_P_HLD;
u32 RX_DSC_SW_P;
u32 reserve5[3];
u32 TX_DSC_BASE;
u32 TX_DSC_SIZE;
u32 TX_DSC_HW_P;
u32 TX_DSC_HW_P_HLD;
u32 TX_DSC_SW_P;
u32 reserve6[3];
u32 RX_DMA_ST;
u32 TX_DMA_ST;
u32 reserve7[2];
u32 WOL_ST;
u32 WOL_CTRL;
u32 WOL_ADDR_MASK;
};
/* Interrupt Status */
/* Interrupt Status Hold */
/* Interrupt Enable */
#define PCH_GBE_INT_RX_DMA_CMPLT 0x00000001 /* Receive DMA Transfer Complete */
#define PCH_GBE_INT_RX_VALID 0x00000002 /* MAC Normal Receive Complete */
#define PCH_GBE_INT_RX_FRAME_ERR 0x00000004 /* Receive frame error */
#define PCH_GBE_INT_RX_FIFO_ERR 0x00000008 /* Receive FIFO Overflow */
#define PCH_GBE_INT_RX_DMA_ERR 0x00000010 /* Receive DMA Transfer Error */
#define PCH_GBE_INT_RX_DSC_EMP 0x00000020 /* Receive Descriptor Empty */
#define PCH_GBE_INT_TX_CMPLT 0x00000100 /* MAC Transmission Complete */
#define PCH_GBE_INT_TX_DMA_CMPLT 0x00000200 /* DMA Transfer Complete */
#define PCH_GBE_INT_TX_FIFO_ERR 0x00000400 /* Transmission FIFO underflow. */
#define PCH_GBE_INT_TX_DMA_ERR 0x00000800 /* Transmission DMA Error */
#define PCH_GBE_INT_PAUSE_CMPLT 0x00001000 /* Pause Transmission complete */
#define PCH_GBE_INT_MIIM_CMPLT 0x00010000 /* MIIM I/F Read completion */
#define PCH_GBE_INT_PHY_INT 0x00100000 /* Interruption from PHY */
#define PCH_GBE_INT_WOL_DET 0x01000000 /* Wake On LAN Event detection. */
#define PCH_GBE_INT_TCPIP_ERR 0x10000000 /* TCP/IP Accelerator Error */
/* Mode */
#define PCH_GBE_MODE_MII_ETHER 0x00000000 /* GIGA Ethernet Mode [MII] */
#define PCH_GBE_MODE_GMII_ETHER 0x80000000 /* GIGA Ethernet Mode [GMII] */
#define PCH_GBE_MODE_HALF_DUPLEX 0x00000000 /* Duplex Mode [half duplex] */
#define PCH_GBE_MODE_FULL_DUPLEX 0x40000000 /* Duplex Mode [full duplex] */
#define PCH_GBE_MODE_FR_BST 0x04000000 /* Frame bursting is done */
/* Reset */
#define PCH_GBE_ALL_RST 0x80000000 /* All reset */
#define PCH_GBE_TX_RST 0x00008000 /* TX MAC, TX FIFO, TX DMA reset */
#define PCH_GBE_RX_RST 0x00004000 /* RX MAC, RX FIFO, RX DMA reset */
/* TCP/IP Accelerator Control */
#define PCH_GBE_EX_LIST_EN 0x00000008 /* External List Enable */
#define PCH_GBE_RX_TCPIPACC_OFF 0x00000004 /* RX TCP/IP ACC Disabled */
#define PCH_GBE_TX_TCPIPACC_EN 0x00000002 /* TX TCP/IP ACC Enable */
#define PCH_GBE_RX_TCPIPACC_EN 0x00000001 /* RX TCP/IP ACC Enable */
/* MAC RX Enable */
#define PCH_GBE_MRE_MAC_RX_EN 0x00000001 /* MAC Receive Enable */
/* RX Flow Control */
#define PCH_GBE_FL_CTRL_EN 0x80000000 /* Pause packet is enabled */
/* Pause Packet Request */
#define PCH_GBE_PS_PKT_RQ 0x80000000 /* Pause packet Request */
/* RX Mode */
#define PCH_GBE_ADD_FIL_EN 0x80000000 /* Address Filtering Enable */
/* Multicast Filtering Enable */
#define PCH_GBE_MLT_FIL_EN 0x40000000
/* Receive Almost Empty Threshold */
#define PCH_GBE_RH_ALM_EMP_4 0x00000000 /* 4 words */
#define PCH_GBE_RH_ALM_EMP_8 0x00004000 /* 8 words */
#define PCH_GBE_RH_ALM_EMP_16 0x00008000 /* 16 words */
#define PCH_GBE_RH_ALM_EMP_32 0x0000C000 /* 32 words */
/* Receive Almost Full Threshold */
#define PCH_GBE_RH_ALM_FULL_4 0x00000000 /* 4 words */
#define PCH_GBE_RH_ALM_FULL_8 0x00001000 /* 8 words */
#define PCH_GBE_RH_ALM_FULL_16 0x00002000 /* 16 words */
#define PCH_GBE_RH_ALM_FULL_32 0x00003000 /* 32 words */
/* RX FIFO Read Triger Threshold */
#define PCH_GBE_RH_RD_TRG_4 0x00000000 /* 4 words */
#define PCH_GBE_RH_RD_TRG_8 0x00000200 /* 8 words */
#define PCH_GBE_RH_RD_TRG_16 0x00000400 /* 16 words */
#define PCH_GBE_RH_RD_TRG_32 0x00000600 /* 32 words */
#define PCH_GBE_RH_RD_TRG_64 0x00000800 /* 64 words */
#define PCH_GBE_RH_RD_TRG_128 0x00000A00 /* 128 words */
#define PCH_GBE_RH_RD_TRG_256 0x00000C00 /* 256 words */
#define PCH_GBE_RH_RD_TRG_512 0x00000E00 /* 512 words */
/* Receive Descriptor bit definitions */
#define PCH_GBE_RXD_ACC_STAT_BCAST 0x00000400
#define PCH_GBE_RXD_ACC_STAT_MCAST 0x00000200
#define PCH_GBE_RXD_ACC_STAT_UCAST 0x00000100
#define PCH_GBE_RXD_ACC_STAT_TCPIPOK 0x000000C0
#define PCH_GBE_RXD_ACC_STAT_IPOK 0x00000080
#define PCH_GBE_RXD_ACC_STAT_TCPOK 0x00000040
#define PCH_GBE_RXD_ACC_STAT_IP6ERR 0x00000020
#define PCH_GBE_RXD_ACC_STAT_OFLIST 0x00000010
#define PCH_GBE_RXD_ACC_STAT_TYPEIP 0x00000008
#define PCH_GBE_RXD_ACC_STAT_MACL 0x00000004
#define PCH_GBE_RXD_ACC_STAT_PPPOE 0x00000002
#define PCH_GBE_RXD_ACC_STAT_VTAGT 0x00000001
#define PCH_GBE_RXD_GMAC_STAT_PAUSE 0x0200
#define PCH_GBE_RXD_GMAC_STAT_MARBR 0x0100
#define PCH_GBE_RXD_GMAC_STAT_MARMLT 0x0080
#define PCH_GBE_RXD_GMAC_STAT_MARIND 0x0040
#define PCH_GBE_RXD_GMAC_STAT_MARNOTMT 0x0020
#define PCH_GBE_RXD_GMAC_STAT_TLONG 0x0010
#define PCH_GBE_RXD_GMAC_STAT_TSHRT 0x0008
#define PCH_GBE_RXD_GMAC_STAT_NOTOCTAL 0x0004
#define PCH_GBE_RXD_GMAC_STAT_NBLERR 0x0002
#define PCH_GBE_RXD_GMAC_STAT_CRCERR 0x0001
/* Transmit Descriptor bit definitions */
#define PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF 0x0008
#define PCH_GBE_TXD_CTRL_ITAG 0x0004
#define PCH_GBE_TXD_CTRL_ICRC 0x0002
#define PCH_GBE_TXD_CTRL_APAD 0x0001
#define PCH_GBE_TXD_WORDS_SHIFT 2
#define PCH_GBE_TXD_GMAC_STAT_CMPLT 0x2000
#define PCH_GBE_TXD_GMAC_STAT_ABT 0x1000
#define PCH_GBE_TXD_GMAC_STAT_EXCOL 0x0800
#define PCH_GBE_TXD_GMAC_STAT_SNGCOL 0x0400
#define PCH_GBE_TXD_GMAC_STAT_MLTCOL 0x0200
#define PCH_GBE_TXD_GMAC_STAT_CRSER 0x0100
#define PCH_GBE_TXD_GMAC_STAT_TLNG 0x0080
#define PCH_GBE_TXD_GMAC_STAT_TSHRT 0x0040
#define PCH_GBE_TXD_GMAC_STAT_LTCOL 0x0020
#define PCH_GBE_TXD_GMAC_STAT_TFUNDFLW 0x0010
#define PCH_GBE_TXD_GMAC_STAT_RTYCNT_MASK 0x000F
/* TX Mode */
#define PCH_GBE_TM_NO_RTRY 0x80000000 /* No Retransmission */
#define PCH_GBE_TM_LONG_PKT 0x40000000 /* Long Packt TX Enable */
#define PCH_GBE_TM_ST_AND_FD 0x20000000 /* Stare and Forward */
#define PCH_GBE_TM_SHORT_PKT 0x10000000 /* Short Packet TX Enable */
#define PCH_GBE_TM_LTCOL_RETX 0x08000000 /* Retransmission at Late Collision */
/* Frame Start Threshold */
#define PCH_GBE_TM_TH_TX_STRT_4 0x00000000 /* 4 words */
#define PCH_GBE_TM_TH_TX_STRT_8 0x00004000 /* 8 words */
#define PCH_GBE_TM_TH_TX_STRT_16 0x00008000 /* 16 words */
#define PCH_GBE_TM_TH_TX_STRT_32 0x0000C000 /* 32 words */
/* Transmit Almost Empty Threshold */
#define PCH_GBE_TM_TH_ALM_EMP_4 0x00000000 /* 4 words */
#define PCH_GBE_TM_TH_ALM_EMP_8 0x00000800 /* 8 words */
#define PCH_GBE_TM_TH_ALM_EMP_16 0x00001000 /* 16 words */
#define PCH_GBE_TM_TH_ALM_EMP_32 0x00001800 /* 32 words */
#define PCH_GBE_TM_TH_ALM_EMP_64 0x00002000 /* 64 words */
#define PCH_GBE_TM_TH_ALM_EMP_128 0x00002800 /* 128 words */
#define PCH_GBE_TM_TH_ALM_EMP_256 0x00003000 /* 256 words */
#define PCH_GBE_TM_TH_ALM_EMP_512 0x00003800 /* 512 words */
/* Transmit Almost Full Threshold */
#define PCH_GBE_TM_TH_ALM_FULL_4 0x00000000 /* 4 words */
#define PCH_GBE_TM_TH_ALM_FULL_8 0x00000200 /* 8 words */
#define PCH_GBE_TM_TH_ALM_FULL_16 0x00000400 /* 16 words */
#define PCH_GBE_TM_TH_ALM_FULL_32 0x00000600 /* 32 words */
/* RX FIFO Status */
#define PCH_GBE_RF_ALM_FULL 0x80000000 /* RX FIFO is almost full. */
#define PCH_GBE_RF_ALM_EMP 0x40000000 /* RX FIFO is almost empty. */
#define PCH_GBE_RF_RD_TRG 0x20000000 /* Become more than RH_RD_TRG. */
#define PCH_GBE_RF_STRWD 0x1FFE0000 /* The word count of RX FIFO. */
#define PCH_GBE_RF_RCVING 0x00010000 /* Stored in RX FIFO. */
/* MAC Address Mask */
#define PCH_GBE_BUSY 0x80000000
/* MIIM */
#define PCH_GBE_MIIM_OPER_WRITE 0x04000000
#define PCH_GBE_MIIM_OPER_READ 0x00000000
#define PCH_GBE_MIIM_OPER_READY 0x04000000
#define PCH_GBE_MIIM_PHY_ADDR_SHIFT 21
#define PCH_GBE_MIIM_REG_ADDR_SHIFT 16
/* RGMII Status */
#define PCH_GBE_LINK_UP 0x80000008
#define PCH_GBE_RXC_SPEED_MSK 0x00000006
#define PCH_GBE_RXC_SPEED_2_5M 0x00000000 /* 2.5MHz */
#define PCH_GBE_RXC_SPEED_25M 0x00000002 /* 25MHz */
#define PCH_GBE_RXC_SPEED_125M 0x00000004 /* 100MHz */
#define PCH_GBE_DUPLEX_FULL 0x00000001
/* RGMII Control */
#define PCH_GBE_CRS_SEL 0x00000010
#define PCH_GBE_RGMII_RATE_125M 0x00000000
#define PCH_GBE_RGMII_RATE_25M 0x00000008
#define PCH_GBE_RGMII_RATE_2_5M 0x0000000C
#define PCH_GBE_RGMII_MODE_GMII 0x00000000
#define PCH_GBE_RGMII_MODE_RGMII 0x00000002
#define PCH_GBE_CHIP_TYPE_EXTERNAL 0x00000000
#define PCH_GBE_CHIP_TYPE_INTERNAL 0x00000001
/* DMA Control */
#define PCH_GBE_RX_DMA_EN 0x00000002 /* Enables Receive DMA */
#define PCH_GBE_TX_DMA_EN 0x00000001 /* Enables Transmission DMA */
/* RX DMA STATUS */
#define PCH_GBE_IDLE_CHECK 0xFFFFFFFE
/* Wake On LAN Status */
#define PCH_GBE_WLS_BR 0x00000008 /* Broadcas Address */
#define PCH_GBE_WLS_MLT 0x00000004 /* Multicast Address */
/* The Frame registered in Address Recognizer */
#define PCH_GBE_WLS_IND 0x00000002
#define PCH_GBE_WLS_MP 0x00000001 /* Magic packet Address */
/* Wake On LAN Control */
#define PCH_GBE_WLC_WOL_MODE 0x00010000
#define PCH_GBE_WLC_IGN_TLONG 0x00000100
#define PCH_GBE_WLC_IGN_TSHRT 0x00000080
#define PCH_GBE_WLC_IGN_OCTER 0x00000040
#define PCH_GBE_WLC_IGN_NBLER 0x00000020
#define PCH_GBE_WLC_IGN_CRCER 0x00000010
#define PCH_GBE_WLC_BR 0x00000008
#define PCH_GBE_WLC_MLT 0x00000004
#define PCH_GBE_WLC_IND 0x00000002
#define PCH_GBE_WLC_MP 0x00000001
/* Wake On LAN Address Mask */
#define PCH_GBE_WLA_BUSY 0x80000000
/* TX/RX descriptor defines */
#define PCH_GBE_MAX_TXD 4096
#define PCH_GBE_DEFAULT_TXD 256
#define PCH_GBE_MIN_TXD 8
#define PCH_GBE_MAX_RXD 4096
#define PCH_GBE_DEFAULT_RXD 256
#define PCH_GBE_MIN_RXD 8
/* Number of Transmit and Receive Descriptors must be a multiple of 8 */
#define PCH_GBE_TX_DESC_MULTIPLE 8
#define PCH_GBE_RX_DESC_MULTIPLE 8
/* Read/Write operation is done through MII Management IF */
#define PCH_GBE_HAL_MIIM_READ ((u32)0x00000000)
#define PCH_GBE_HAL_MIIM_WRITE ((u32)0x04000000)
/* flow control values */
#define PCH_GBE_FC_NONE 0
#define PCH_GBE_FC_RX_PAUSE 1
#define PCH_GBE_FC_TX_PAUSE 2
#define PCH_GBE_FC_FULL 3
#define PCH_GBE_FC_DEFAULT PCH_GBE_FC_FULL
struct pch_gbe_hw;
/**
* struct pch_gbe_functions - HAL APi function pointer
* @get_bus_info: for pch_gbe_hal_get_bus_info
* @init_hw: for pch_gbe_hal_init_hw
* @read_phy_reg: for pch_gbe_hal_read_phy_reg
* @write_phy_reg: for pch_gbe_hal_write_phy_reg
* @reset_phy: for pch_gbe_hal_phy_hw_reset
* @sw_reset_phy: for pch_gbe_hal_phy_sw_reset
* @power_up_phy: for pch_gbe_hal_power_up_phy
* @power_down_phy: for pch_gbe_hal_power_down_phy
* @read_mac_addr: for pch_gbe_hal_read_mac_addr
*/
struct pch_gbe_functions {
void (*get_bus_info) (struct pch_gbe_hw *);
s32 (*init_hw) (struct pch_gbe_hw *);
s32 (*read_phy_reg) (struct pch_gbe_hw *, u32, u16 *);
s32 (*write_phy_reg) (struct pch_gbe_hw *, u32, u16);
void (*reset_phy) (struct pch_gbe_hw *);
void (*sw_reset_phy) (struct pch_gbe_hw *);
void (*power_up_phy) (struct pch_gbe_hw *hw);
void (*power_down_phy) (struct pch_gbe_hw *hw);
s32 (*read_mac_addr) (struct pch_gbe_hw *);
};
/**
* struct pch_gbe_mac_info - MAC information
* @addr[6]: Store the MAC address
* @fc: Mode of flow control
* @fc_autoneg: Auto negotiation enable for flow control setting
* @tx_fc_enable: Enable flag of Transmit flow control
* @max_frame_size: Max transmit frame size
* @min_frame_size: Min transmit frame size
* @autoneg: Auto negotiation enable
* @link_speed: Link speed
* @link_duplex: Link duplex
*/
struct pch_gbe_mac_info {
u8 addr[6];
u8 fc;
u8 fc_autoneg;
u8 tx_fc_enable;
u32 max_frame_size;
u32 min_frame_size;
u8 autoneg;
u16 link_speed;
u16 link_duplex;
};
/**
* struct pch_gbe_phy_info - PHY information
* @addr: PHY address
* @id: PHY's identifier
* @revision: PHY's revision
* @reset_delay_us: HW reset delay time[us]
* @autoneg_advertised: Autoneg advertised
*/
struct pch_gbe_phy_info {
u32 addr;
u32 id;
u32 revision;
u32 reset_delay_us;
u16 autoneg_advertised;
};
/*!
* @ingroup Gigabit Ether driver Layer
* @struct pch_gbe_bus_info
* @brief Bus information
*/
struct pch_gbe_bus_info {
u8 type;
u8 speed;
u8 width;
};
/*!
* @ingroup Gigabit Ether driver Layer
* @struct pch_gbe_hw
* @brief Hardware information
*/
struct pch_gbe_hw {
void *back;
struct pch_gbe_regs __iomem *reg;
spinlock_t miim_lock;
const struct pch_gbe_functions *func;
struct pch_gbe_mac_info mac;
struct pch_gbe_phy_info phy;
struct pch_gbe_bus_info bus;
};
/**
* struct pch_gbe_rx_desc - Receive Descriptor
* @buffer_addr: RX Frame Buffer Address
* @tcp_ip_status: TCP/IP Accelerator Status
* @rx_words_eob: RX word count and Byte position
* @gbec_status: GMAC Status
* @dma_status: DMA Status
* @reserved1: Reserved
* @reserved2: Reserved
*/
struct pch_gbe_rx_desc {
u32 buffer_addr;
u32 tcp_ip_status;
u16 rx_words_eob;
u16 gbec_status;
u8 dma_status;
u8 reserved1;
u16 reserved2;
};
/**
* struct pch_gbe_tx_desc - Transmit Descriptor
* @buffer_addr: TX Frame Buffer Address
* @length: Data buffer length
* @reserved1: Reserved
* @tx_words_eob: TX word count and Byte position
* @tx_frame_ctrl: TX Frame Control
* @dma_status: DMA Status
* @reserved2: Reserved
* @gbec_status: GMAC Status
*/
struct pch_gbe_tx_desc {
u32 buffer_addr;
u16 length;
u16 reserved1;
u16 tx_words_eob;
u16 tx_frame_ctrl;
u8 dma_status;
u8 reserved2;
u16 gbec_status;
};
/**
* struct pch_gbe_buffer - Buffer information
* @skb: pointer to a socket buffer
* @dma: DMA address
* @time_stamp: time stamp
* @length: data size
*/
struct pch_gbe_buffer {
struct sk_buff *skb;
dma_addr_t dma;
unsigned char *rx_buffer;
unsigned long time_stamp;
u16 length;
bool mapped;
};
/**
* struct pch_gbe_tx_ring - tx ring information
* @tx_lock: spinlock structs
* @desc: pointer to the descriptor ring memory
* @dma: physical address of the descriptor ring
* @size: length of descriptor ring in bytes
* @count: number of descriptors in the ring
* @next_to_use: next descriptor to associate a buffer with
* @next_to_clean: next descriptor to check for DD status bit
* @buffer_info: array of buffer information structs
*/
struct pch_gbe_tx_ring {
spinlock_t tx_lock;
struct pch_gbe_tx_desc *desc;
dma_addr_t dma;
unsigned int size;
unsigned int count;
unsigned int next_to_use;
unsigned int next_to_clean;
struct pch_gbe_buffer *buffer_info;
};
/**
* struct pch_gbe_rx_ring - rx ring information
* @desc: pointer to the descriptor ring memory
* @dma: physical address of the descriptor ring
* @size: length of descriptor ring in bytes
* @count: number of descriptors in the ring
* @next_to_use: next descriptor to associate a buffer with
* @next_to_clean: next descriptor to check for DD status bit
* @buffer_info: array of buffer information structs
*/
struct pch_gbe_rx_ring {
struct pch_gbe_rx_desc *desc;
dma_addr_t dma;
unsigned char *rx_buff_pool;
dma_addr_t rx_buff_pool_logic;
unsigned int rx_buff_pool_size;
unsigned int size;
unsigned int count;
unsigned int next_to_use;
unsigned int next_to_clean;
struct pch_gbe_buffer *buffer_info;
};
/**
* struct pch_gbe_hw_stats - Statistics counters collected by the MAC
* @rx_packets: total packets received
* @tx_packets: total packets transmitted
* @rx_bytes: total bytes received
* @tx_bytes: total bytes transmitted
* @rx_errors: bad packets received
* @tx_errors: packet transmit problems
* @rx_dropped: no space in Linux buffers
* @tx_dropped: no space available in Linux
* @multicast: multicast packets received
* @collisions: collisions
* @rx_crc_errors: received packet with crc error
* @rx_frame_errors: received frame alignment error
* @rx_alloc_buff_failed: allocate failure of a receive buffer
* @tx_length_errors: transmit length error
* @tx_aborted_errors: transmit aborted error
* @tx_carrier_errors: transmit carrier error
* @tx_timeout_count: Number of transmit timeout
* @tx_restart_count: Number of transmit restert
* @intr_rx_dsc_empty_count: Interrupt count of receive descriptor empty
* @intr_rx_frame_err_count: Interrupt count of receive frame error
* @intr_rx_fifo_err_count: Interrupt count of receive FIFO error
* @intr_rx_dma_err_count: Interrupt count of receive DMA error
* @intr_tx_fifo_err_count: Interrupt count of transmit FIFO error
* @intr_tx_dma_err_count: Interrupt count of transmit DMA error
* @intr_tcpip_err_count: Interrupt count of TCP/IP Accelerator
*/
struct pch_gbe_hw_stats {
u32 rx_packets;
u32 tx_packets;
u32 rx_bytes;
u32 tx_bytes;
u32 rx_errors;
u32 tx_errors;
u32 rx_dropped;
u32 tx_dropped;
u32 multicast;
u32 collisions;
u32 rx_crc_errors;
u32 rx_frame_errors;
u32 rx_alloc_buff_failed;
u32 tx_length_errors;
u32 tx_aborted_errors;
u32 tx_carrier_errors;
u32 tx_timeout_count;
u32 tx_restart_count;
u32 intr_rx_dsc_empty_count;
u32 intr_rx_frame_err_count;
u32 intr_rx_fifo_err_count;
u32 intr_rx_dma_err_count;
u32 intr_tx_fifo_err_count;
u32 intr_tx_dma_err_count;
u32 intr_tcpip_err_count;
};
/**
* struct pch_gbe_adapter - board specific private data structure
* @stats_lock: Spinlock structure for status
* @tx_queue_lock: Spinlock structure for transmit
* @ethtool_lock: Spinlock structure for ethtool
* @irq_sem: Semaphore for interrupt
* @netdev: Pointer of network device structure
* @pdev: Pointer of pci device structure
* @polling_netdev: Pointer of polling network device structure
* @napi: NAPI structure
* @hw: Pointer of hardware structure
* @stats: Hardware status
* @reset_task: Reset task
* @mii: MII information structure
* @watchdog_timer: Watchdog timer list
* @wake_up_evt: Wake up event
* @config_space: Configuration space
* @msg_enable: Driver message level
* @led_status: LED status
* @tx_ring: Pointer of Tx descriptor ring structure
* @rx_ring: Pointer of Rx descriptor ring structure
* @rx_buffer_len: Receive buffer length
* @tx_queue_len: Transmit queue length
* @have_msi: PCI MSI mode flag
*/
struct pch_gbe_adapter {
spinlock_t stats_lock;
spinlock_t tx_queue_lock;
spinlock_t ethtool_lock;
atomic_t irq_sem;
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device *polling_netdev;
struct napi_struct napi;
struct pch_gbe_hw hw;
struct pch_gbe_hw_stats stats;
struct work_struct reset_task;
struct mii_if_info mii;
struct timer_list watchdog_timer;
u32 wake_up_evt;
u32 *config_space;
unsigned long led_status;
struct pch_gbe_tx_ring *tx_ring;
struct pch_gbe_rx_ring *rx_ring;
unsigned long rx_buffer_len;
unsigned long tx_queue_len;
bool have_msi;
bool rx_stop_flag;
};
extern const char pch_driver_version[];
/* pch_gbe_main.c */
extern int pch_gbe_up(struct pch_gbe_adapter *adapter);
extern void pch_gbe_down(struct pch_gbe_adapter *adapter);
extern void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter);
extern void pch_gbe_reset(struct pch_gbe_adapter *adapter);
extern int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
struct pch_gbe_tx_ring *txdr);
extern int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
struct pch_gbe_rx_ring *rxdr);
extern void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
struct pch_gbe_tx_ring *tx_ring);
extern void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
struct pch_gbe_rx_ring *rx_ring);
extern void pch_gbe_update_stats(struct pch_gbe_adapter *adapter);
/* pch_gbe_param.c */
extern void pch_gbe_check_options(struct pch_gbe_adapter *adapter);
/* pch_gbe_ethtool.c */
extern void pch_gbe_set_ethtool_ops(struct net_device *netdev);
/* pch_gbe_mac.c */
extern s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw);
extern s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw);
extern u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw,
u32 addr, u32 dir, u32 reg, u16 data);
#endif /* _PCH_GBE_H_ */
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