| /* |
| * 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; |
| int hwts_tx_en; |
| int hwts_rx_en; |
| struct pci_dev *ptp_pdev; |
| }; |
| |
| 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); |
| #ifdef CONFIG_PCH_PTP |
| extern u32 pch_ch_control_read(struct pci_dev *pdev); |
| extern void pch_ch_control_write(struct pci_dev *pdev, u32 val); |
| extern u32 pch_ch_event_read(struct pci_dev *pdev); |
| extern void pch_ch_event_write(struct pci_dev *pdev, u32 val); |
| extern u32 pch_src_uuid_lo_read(struct pci_dev *pdev); |
| extern u32 pch_src_uuid_hi_read(struct pci_dev *pdev); |
| extern u64 pch_rx_snap_read(struct pci_dev *pdev); |
| extern u64 pch_tx_snap_read(struct pci_dev *pdev); |
| #endif |
| |
| /* 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_ */ |
