To compile this driver as a module, choose M here. The module
will be called s6gmac.
-config PCH_GBE
- tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GbE"
- depends on PCI
- select MII
- ---help---
- This is a gigabit ethernet driver for EG20T PCH.
- EG20T PCH is the platform controller hub that is used in Intel's
- general embedded platform.
- EG20T PCH has Gigabit Ethernet interface.
- Using this interface, it is able to access system devices connected
- to Gigabit Ethernet.
- This driver enables Gigabit Ethernet function.
-
- This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
- Output Hub), ML7223.
- ML7223 IOH is for MP(Media Phone) use.
- ML7223 is companion chip for Intel Atom E6xx series.
- ML7223 is completely compatible for Intel EG20T PCH.
-
endif # NETDEV_1000
#
obj-$(CONFIG_CAIF) += caif/
obj-$(CONFIG_OCTEON_MGMT_ETHERNET) += octeon/
-obj-$(CONFIG_PCH_GBE) += pch_gbe/
obj-$(CONFIG_TILE_NET) += tile/
source "drivers/net/ethernet/myricom/Kconfig"
source "drivers/net/ethernet/natsemi/Kconfig"
source "drivers/net/ethernet/8390/Kconfig"
+source "drivers/net/ethernet/oki-semi/Kconfig"
source "drivers/net/ethernet/pasemi/Kconfig"
source "drivers/net/ethernet/qlogic/Kconfig"
source "drivers/net/ethernet/racal/Kconfig"
obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
obj-$(CONFIG_NET_VENDOR_MYRI) += myricom/
obj-$(CONFIG_NET_VENDOR_NATSEMI) += natsemi/
+obj-$(CONFIG_NET_VENDOR_OKI) += oki-semi/
obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/
obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
obj-$(CONFIG_NET_VENDOR_RACAL) += racal/
--- /dev/null
+#
+# OKI Semiconductor device configuration
+#
+
+config NET_VENDOR_OKI
+ bool "OKI Semiconductor devices"
+ depends on PCI
+ ---help---
+ If you have a network (Ethernet) card belonging to this class, say Y
+ and read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about OKI Semiconductor cards. If you say Y, you will
+ be asked for your specific card in the following questions.
+
+if NET_VENDOR_OKI
+
+source "drivers/net/ethernet/oki-semi/pch_gbe/Kconfig"
+
+endif # NET_VENDOR_OKI
--- /dev/null
+#
+# Makefile for the OKI Semiconductor device drivers.
+#
+
+obj-$(CONFIG_PCH_GBE) += pch_gbe/
--- /dev/null
+#
+# OKI Semiconductor device configuration
+#
+
+config PCH_GBE
+ tristate "OKI SEMICONDUCTOR ML7223 IOH GbE (Intel EG20T PCH)"
+ depends on PCI
+ select MII
+ ---help---
+ This is a gigabit ethernet driver for EG20T PCH.
+ EG20T PCH is the platform controller hub that is used in Intel's
+ general embedded platform. EG20T PCH has Gigabit Ethernet interface.
+ Using this interface, it is able to access system devices connected
+ to Gigabit Ethernet. This driver enables Gigabit Ethernet function.
+
+ This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
+ Output Hub), ML7223.
+ ML7223 IOH is for MP(Media Phone) use.
+ ML7223 is companion chip for Intel Atom E6xx series.
+ ML7223 is completely compatible for Intel EG20T PCH.
--- /dev/null
+obj-$(CONFIG_PCH_GBE) += pch_gbe.o
+
+pch_gbe-y := pch_gbe_phy.o pch_gbe_ethtool.o pch_gbe_param.o
+pch_gbe-y += pch_gbe_api.o pch_gbe_main.o
--- /dev/null
+/*
+ * 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 0x40000000 /* TX MAC, TX FIFO, TX DMA reset */
+#define PCH_GBE_RX_RST 0x04000000 /* 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 */
+
+/* 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 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 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;
+};
+
+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_ */
--- /dev/null
+/*
+ * 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.
+ */
+#include "pch_gbe.h"
+#include "pch_gbe_phy.h"
+
+/* bus type values */
+#define pch_gbe_bus_type_unknown 0
+#define pch_gbe_bus_type_pci 1
+#define pch_gbe_bus_type_pcix 2
+#define pch_gbe_bus_type_pci_express 3
+#define pch_gbe_bus_type_reserved 4
+
+/* bus speed values */
+#define pch_gbe_bus_speed_unknown 0
+#define pch_gbe_bus_speed_33 1
+#define pch_gbe_bus_speed_66 2
+#define pch_gbe_bus_speed_100 3
+#define pch_gbe_bus_speed_120 4
+#define pch_gbe_bus_speed_133 5
+#define pch_gbe_bus_speed_2500 6
+#define pch_gbe_bus_speed_reserved 7
+
+/* bus width values */
+#define pch_gbe_bus_width_unknown 0
+#define pch_gbe_bus_width_pcie_x1 1
+#define pch_gbe_bus_width_pcie_x2 2
+#define pch_gbe_bus_width_pcie_x4 4
+#define pch_gbe_bus_width_32 5
+#define pch_gbe_bus_width_64 6
+#define pch_gbe_bus_width_reserved 7
+
+/**
+ * pch_gbe_plat_get_bus_info - Obtain bus information for adapter
+ * @hw: Pointer to the HW structure
+ */
+static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
+{
+ hw->bus.type = pch_gbe_bus_type_pci_express;
+ hw->bus.speed = pch_gbe_bus_speed_2500;
+ hw->bus.width = pch_gbe_bus_width_pcie_x1;
+}
+
+/**
+ * pch_gbe_plat_init_hw - Initialize hardware
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed-EBUSY
+ */
+static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
+{
+ s32 ret_val;
+
+ ret_val = pch_gbe_phy_get_id(hw);
+ if (ret_val) {
+ pr_err("pch_gbe_phy_get_id error\n");
+ return ret_val;
+ }
+ pch_gbe_phy_init_setting(hw);
+ /* Setup Mac interface option RGMII */
+#ifdef PCH_GBE_MAC_IFOP_RGMII
+ pch_gbe_phy_set_rgmii(hw);
+#endif
+ return ret_val;
+}
+
+static const struct pch_gbe_functions pch_gbe_ops = {
+ .get_bus_info = pch_gbe_plat_get_bus_info,
+ .init_hw = pch_gbe_plat_init_hw,
+ .read_phy_reg = pch_gbe_phy_read_reg_miic,
+ .write_phy_reg = pch_gbe_phy_write_reg_miic,
+ .reset_phy = pch_gbe_phy_hw_reset,
+ .sw_reset_phy = pch_gbe_phy_sw_reset,
+ .power_up_phy = pch_gbe_phy_power_up,
+ .power_down_phy = pch_gbe_phy_power_down,
+ .read_mac_addr = pch_gbe_mac_read_mac_addr
+};
+
+/**
+ * pch_gbe_plat_init_function_pointers - Init func ptrs
+ * @hw: Pointer to the HW structure
+ */
+static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
+{
+ /* Set PHY parameter */
+ hw->phy.reset_delay_us = PCH_GBE_PHY_RESET_DELAY_US;
+ /* Set function pointers */
+ hw->func = &pch_gbe_ops;
+}
+
+/**
+ * pch_gbe_hal_setup_init_funcs - Initializes function pointers
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successfully
+ * ENOSYS: Function is not registered
+ */
+inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
+{
+ if (!hw->reg) {
+ pr_err("ERROR: Registers not mapped\n");
+ return -ENOSYS;
+ }
+ pch_gbe_plat_init_function_pointers(hw);
+ return 0;
+}
+
+/**
+ * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
+{
+ if (!hw->func->get_bus_info)
+ pr_err("ERROR: configuration\n");
+ else
+ hw->func->get_bus_info(hw);
+}
+
+/**
+ * pch_gbe_hal_init_hw - Initialize hardware
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successfully
+ * ENOSYS: Function is not registered
+ */
+inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
+{
+ if (!hw->func->init_hw) {
+ pr_err("ERROR: configuration\n");
+ return -ENOSYS;
+ }
+ return hw->func->init_hw(hw);
+}
+
+/**
+ * pch_gbe_hal_read_phy_reg - Reads PHY register
+ * @hw: Pointer to the HW structure
+ * @offset: The register to read
+ * @data: The buffer to store the 16-bit read.
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+ u16 *data)
+{
+ if (!hw->func->read_phy_reg)
+ return 0;
+ return hw->func->read_phy_reg(hw, offset, data);
+}
+
+/**
+ * pch_gbe_hal_write_phy_reg - Writes PHY register
+ * @hw: Pointer to the HW structure
+ * @offset: The register to read
+ * @data: The value to write.
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+ u16 data)
+{
+ if (!hw->func->write_phy_reg)
+ return 0;
+ return hw->func->write_phy_reg(hw, offset, data);
+}
+
+/**
+ * pch_gbe_hal_phy_hw_reset - Hard PHY reset
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
+{
+ if (!hw->func->reset_phy)
+ pr_err("ERROR: configuration\n");
+ else
+ hw->func->reset_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_phy_sw_reset - Soft PHY reset
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
+{
+ if (!hw->func->sw_reset_phy)
+ pr_err("ERROR: configuration\n");
+ else
+ hw->func->sw_reset_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_read_mac_addr - Reads MAC address
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successfully
+ * ENOSYS: Function is not registered
+ */
+inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
+{
+ if (!hw->func->read_mac_addr) {
+ pr_err("ERROR: configuration\n");
+ return -ENOSYS;
+ }
+ return hw->func->read_mac_addr(hw);
+}
+
+/**
+ * pch_gbe_hal_power_up_phy - Power up PHY
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
+{
+ if (hw->func->power_up_phy)
+ hw->func->power_up_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_power_down_phy - Power down PHY
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
+{
+ if (hw->func->power_down_phy)
+ hw->func->power_down_phy(hw);
+}
--- /dev/null
+/*
+ * 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_API_H_
+#define _PCH_GBE_API_H_
+
+#include "pch_gbe_phy.h"
+
+s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw);
+void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 *data);
+s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 data);
+void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw);
+void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw);
+void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw);
+
+#endif
--- /dev/null
+/*
+ * 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.
+ */
+#include "pch_gbe.h"
+#include "pch_gbe_api.h"
+
+/**
+ * pch_gbe_stats - Stats item information
+ */
+struct pch_gbe_stats {
+ char string[ETH_GSTRING_LEN];
+ size_t size;
+ size_t offset;
+};
+
+#define PCH_GBE_STAT(m) \
+{ \
+ .string = #m, \
+ .size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m), \
+ .offset = offsetof(struct pch_gbe_hw_stats, m), \
+}
+
+/**
+ * pch_gbe_gstrings_stats - ethtool information status name list
+ */
+static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
+ PCH_GBE_STAT(rx_packets),
+ PCH_GBE_STAT(tx_packets),
+ PCH_GBE_STAT(rx_bytes),
+ PCH_GBE_STAT(tx_bytes),
+ PCH_GBE_STAT(rx_errors),
+ PCH_GBE_STAT(tx_errors),
+ PCH_GBE_STAT(rx_dropped),
+ PCH_GBE_STAT(tx_dropped),
+ PCH_GBE_STAT(multicast),
+ PCH_GBE_STAT(collisions),
+ PCH_GBE_STAT(rx_crc_errors),
+ PCH_GBE_STAT(rx_frame_errors),
+ PCH_GBE_STAT(rx_alloc_buff_failed),
+ PCH_GBE_STAT(tx_length_errors),
+ PCH_GBE_STAT(tx_aborted_errors),
+ PCH_GBE_STAT(tx_carrier_errors),
+ PCH_GBE_STAT(tx_timeout_count),
+ PCH_GBE_STAT(tx_restart_count),
+ PCH_GBE_STAT(intr_rx_dsc_empty_count),
+ PCH_GBE_STAT(intr_rx_frame_err_count),
+ PCH_GBE_STAT(intr_rx_fifo_err_count),
+ PCH_GBE_STAT(intr_rx_dma_err_count),
+ PCH_GBE_STAT(intr_tx_fifo_err_count),
+ PCH_GBE_STAT(intr_tx_dma_err_count),
+ PCH_GBE_STAT(intr_tcpip_err_count)
+};
+
+#define PCH_GBE_QUEUE_STATS_LEN 0
+#define PCH_GBE_GLOBAL_STATS_LEN ARRAY_SIZE(pch_gbe_gstrings_stats)
+#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)
+
+#define PCH_GBE_MAC_REGS_LEN (sizeof(struct pch_gbe_regs) / 4)
+#define PCH_GBE_REGS_LEN (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
+/**
+ * pch_gbe_get_settings - Get device-specific settings
+ * @netdev: Network interface device structure
+ * @ecmd: Ethtool command
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ int ret;
+
+ ret = mii_ethtool_gset(&adapter->mii, ecmd);
+ ecmd->supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
+ ecmd->advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
+
+ if (!netif_carrier_ok(adapter->netdev))
+ ethtool_cmd_speed_set(ecmd, -1);
+ return ret;
+}
+
+/**
+ * pch_gbe_set_settings - Set device-specific settings
+ * @netdev: Network interface device structure
+ * @ecmd: Ethtool command
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 speed = ethtool_cmd_speed(ecmd);
+ int ret;
+
+ pch_gbe_hal_write_phy_reg(hw, MII_BMCR, BMCR_RESET);
+
+ /* when set_settings() is called with a ethtool_cmd previously
+ * filled by get_settings() on a down link, speed is -1: */
+ if (speed == UINT_MAX) {
+ speed = SPEED_1000;
+ ecmd->duplex = DUPLEX_FULL;
+ }
+ ret = mii_ethtool_sset(&adapter->mii, ecmd);
+ if (ret) {
+ pr_err("Error: mii_ethtool_sset\n");
+ return ret;
+ }
+ hw->mac.link_speed = speed;
+ hw->mac.link_duplex = ecmd->duplex;
+ hw->phy.autoneg_advertised = ecmd->advertising;
+ hw->mac.autoneg = ecmd->autoneg;
+ pch_gbe_hal_phy_sw_reset(hw);
+
+ /* reset the link */
+ if (netif_running(adapter->netdev)) {
+ pch_gbe_down(adapter);
+ ret = pch_gbe_up(adapter);
+ } else {
+ pch_gbe_reset(adapter);
+ }
+ return ret;
+}
+
+/**
+ * pch_gbe_get_regs_len - Report the size of device registers
+ * @netdev: Network interface device structure
+ * Returns: the size of device registers.
+ */
+static int pch_gbe_get_regs_len(struct net_device *netdev)
+{
+ return PCH_GBE_REGS_LEN * (int)sizeof(u32);
+}
+
+/**
+ * pch_gbe_get_drvinfo - Report driver information
+ * @netdev: Network interface device structure
+ * @drvinfo: Driver information structure
+ */
+static void pch_gbe_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ strcpy(drvinfo->driver, KBUILD_MODNAME);
+ strcpy(drvinfo->version, pch_driver_version);
+ strcpy(drvinfo->fw_version, "N/A");
+ strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
+ drvinfo->regdump_len = pch_gbe_get_regs_len(netdev);
+}
+
+/**
+ * pch_gbe_get_regs - Get device registers
+ * @netdev: Network interface device structure
+ * @regs: Ethtool register structure
+ * @p: Buffer pointer of read device register date
+ */
+static void pch_gbe_get_regs(struct net_device *netdev,
+ struct ethtool_regs *regs, void *p)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+ u32 *regs_buff = p;
+ u16 i, tmp;
+
+ regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
+ for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
+ *regs_buff++ = ioread32(&hw->reg->INT_ST + i);
+ /* PHY register */
+ for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
+ pch_gbe_hal_read_phy_reg(&adapter->hw, i, &tmp);
+ *regs_buff++ = tmp;
+ }
+}
+
+/**
+ * pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
+ * @netdev: Network interface device structure
+ * @wol: Wake-on-Lan information
+ */
+static void pch_gbe_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
+ wol->wolopts = 0;
+
+ if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
+ wol->wolopts |= WAKE_UCAST;
+ if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
+ wol->wolopts |= WAKE_MCAST;
+ if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
+ wol->wolopts |= WAKE_BCAST;
+ if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
+ wol->wolopts |= WAKE_MAGIC;
+}
+
+/**
+ * pch_gbe_set_wol - Turn Wake-on-Lan on or off
+ * @netdev: Network interface device structure
+ * @wol: Pointer of wake-on-Lan information straucture
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_set_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
+ return -EOPNOTSUPP;
+ /* these settings will always override what we currently have */
+ adapter->wake_up_evt = 0;
+
+ if ((wol->wolopts & WAKE_UCAST))
+ adapter->wake_up_evt |= PCH_GBE_WLC_IND;
+ if ((wol->wolopts & WAKE_MCAST))
+ adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
+ if ((wol->wolopts & WAKE_BCAST))
+ adapter->wake_up_evt |= PCH_GBE_WLC_BR;
+ if ((wol->wolopts & WAKE_MAGIC))
+ adapter->wake_up_evt |= PCH_GBE_WLC_MP;
+ return 0;
+}
+
+/**
+ * pch_gbe_nway_reset - Restart autonegotiation
+ * @netdev: Network interface device structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_nway_reset(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ return mii_nway_restart(&adapter->mii);
+}
+
+/**
+ * pch_gbe_get_ringparam - Report ring sizes
+ * @netdev: Network interface device structure
+ * @ring: Ring param structure
+ */
+static void pch_gbe_get_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
+ struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;
+
+ ring->rx_max_pending = PCH_GBE_MAX_RXD;
+ ring->tx_max_pending = PCH_GBE_MAX_TXD;
+ ring->rx_mini_max_pending = 0;
+ ring->rx_jumbo_max_pending = 0;
+ ring->rx_pending = rxdr->count;
+ ring->tx_pending = txdr->count;
+ ring->rx_mini_pending = 0;
+ ring->rx_jumbo_pending = 0;
+}
+
+/**
+ * pch_gbe_set_ringparam - Set ring sizes
+ * @netdev: Network interface device structure
+ * @ring: Ring param structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_tx_ring *txdr, *tx_old;
+ struct pch_gbe_rx_ring *rxdr, *rx_old;
+ int tx_ring_size, rx_ring_size;
+ int err = 0;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+ tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
+ rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);
+
+ if ((netif_running(adapter->netdev)))
+ pch_gbe_down(adapter);
+ tx_old = adapter->tx_ring;
+ rx_old = adapter->rx_ring;
+
+ txdr = kzalloc(tx_ring_size, GFP_KERNEL);
+ if (!txdr) {
+ err = -ENOMEM;
+ goto err_alloc_tx;
+ }
+ rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
+ if (!rxdr) {
+ err = -ENOMEM;
+ goto err_alloc_rx;
+ }
+ adapter->tx_ring = txdr;
+ adapter->rx_ring = rxdr;
+
+ rxdr->count =
+ clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
+ rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);
+
+ txdr->count =
+ clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
+ txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);
+
+ if ((netif_running(adapter->netdev))) {
+ /* Try to get new resources before deleting old */
+ err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
+ if (err)
+ goto err_setup_rx;
+ err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
+ if (err)
+ goto err_setup_tx;
+ /* save the new, restore the old in order to free it,
+ * then restore the new back again */
+#ifdef RINGFREE
+ adapter->rx_ring = rx_old;
+ adapter->tx_ring = tx_old;
+ pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
+ pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
+ kfree(tx_old);
+ kfree(rx_old);
+ adapter->rx_ring = rxdr;
+ adapter->tx_ring = txdr;
+#else
+ pch_gbe_free_rx_resources(adapter, rx_old);
+ pch_gbe_free_tx_resources(adapter, tx_old);
+ kfree(tx_old);
+ kfree(rx_old);
+ adapter->rx_ring = rxdr;
+ adapter->tx_ring = txdr;
+#endif
+ err = pch_gbe_up(adapter);
+ }
+ return err;
+
+err_setup_tx:
+ pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
+err_setup_rx:
+ adapter->rx_ring = rx_old;
+ adapter->tx_ring = tx_old;
+ kfree(rxdr);
+err_alloc_rx:
+ kfree(txdr);
+err_alloc_tx:
+ if (netif_running(adapter->netdev))
+ pch_gbe_up(adapter);
+ return err;
+}
+
+/**
+ * pch_gbe_get_pauseparam - Report pause parameters
+ * @netdev: Network interface device structure
+ * @pause: Pause parameters structure
+ */
+static void pch_gbe_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ pause->autoneg =
+ ((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);
+
+ if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
+ pause->rx_pause = 1;
+ } else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
+ pause->tx_pause = 1;
+ } else if (hw->mac.fc == PCH_GBE_FC_FULL) {
+ pause->rx_pause = 1;
+ pause->tx_pause = 1;
+ }
+}
+
+/**
+ * pch_gbe_set_pauseparam - Set pause paramters
+ * @netdev: Network interface device structure
+ * @pause: Pause parameters structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ int ret = 0;
+
+ hw->mac.fc_autoneg = pause->autoneg;
+ if ((pause->rx_pause) && (pause->tx_pause))
+ hw->mac.fc = PCH_GBE_FC_FULL;
+ else if ((pause->rx_pause) && (!pause->tx_pause))
+ hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
+ else if ((!pause->rx_pause) && (pause->tx_pause))
+ hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
+ else if ((!pause->rx_pause) && (!pause->tx_pause))
+ hw->mac.fc = PCH_GBE_FC_NONE;
+
+ if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
+ if ((netif_running(adapter->netdev))) {
+ pch_gbe_down(adapter);
+ ret = pch_gbe_up(adapter);
+ } else {
+ pch_gbe_reset(adapter);
+ }
+ } else {
+ ret = pch_gbe_mac_force_mac_fc(hw);
+ }
+ return ret;
+}
+
+/**
+ * pch_gbe_get_strings - Return a set of strings that describe the requested
+ * objects
+ * @netdev: Network interface device structure
+ * @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
+ * @data: Pointer of read string data.
+ */
+static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case (u32) ETH_SS_STATS:
+ for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
+ memcpy(p, pch_gbe_gstrings_stats[i].string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+/**
+ * pch_gbe_get_ethtool_stats - Return statistics about the device
+ * @netdev: Network interface device structure
+ * @stats: Ethtool statue structure
+ * @data: Pointer of read status area
+ */
+static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ int i;
+ const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
+ char *hw_stats = (char *)&adapter->stats;
+
+ pch_gbe_update_stats(adapter);
+ for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
+ char *p = hw_stats + gstats->offset;
+ data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
+ gstats++;
+ }
+}
+
+static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return PCH_GBE_STATS_LEN;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static const struct ethtool_ops pch_gbe_ethtool_ops = {
+ .get_settings = pch_gbe_get_settings,
+ .set_settings = pch_gbe_set_settings,
+ .get_drvinfo = pch_gbe_get_drvinfo,
+ .get_regs_len = pch_gbe_get_regs_len,
+ .get_regs = pch_gbe_get_regs,
+ .get_wol = pch_gbe_get_wol,
+ .set_wol = pch_gbe_set_wol,
+ .nway_reset = pch_gbe_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_ringparam = pch_gbe_get_ringparam,
+ .set_ringparam = pch_gbe_set_ringparam,
+ .get_pauseparam = pch_gbe_get_pauseparam,
+ .set_pauseparam = pch_gbe_set_pauseparam,
+ .get_strings = pch_gbe_get_strings,
+ .get_ethtool_stats = pch_gbe_get_ethtool_stats,
+ .get_sset_count = pch_gbe_get_sset_count,
+};
+
+void pch_gbe_set_ethtool_ops(struct net_device *netdev)
+{
+ SET_ETHTOOL_OPS(netdev, &pch_gbe_ethtool_ops);
+}
--- /dev/null
+/*
+ * 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.
+ */
+
+#include "pch_gbe.h"
+#include "pch_gbe_api.h"
+#include <linux/prefetch.h>
+
+#define DRV_VERSION "1.00"
+const char pch_driver_version[] = DRV_VERSION;
+
+#define PCI_DEVICE_ID_INTEL_IOH1_GBE 0x8802 /* Pci device ID */
+#define PCH_GBE_MAR_ENTRIES 16
+#define PCH_GBE_SHORT_PKT 64
+#define DSC_INIT16 0xC000
+#define PCH_GBE_DMA_ALIGN 0
+#define PCH_GBE_DMA_PADDING 2
+#define PCH_GBE_WATCHDOG_PERIOD (1 * HZ) /* watchdog time */
+#define PCH_GBE_COPYBREAK_DEFAULT 256
+#define PCH_GBE_PCI_BAR 1
+
+/* Macros for ML7223 */
+#define PCI_VENDOR_ID_ROHM 0x10db
+#define PCI_DEVICE_ID_ROHM_ML7223_GBE 0x8013
+
+#define PCH_GBE_TX_WEIGHT 64
+#define PCH_GBE_RX_WEIGHT 64
+#define PCH_GBE_RX_BUFFER_WRITE 16
+
+/* Initialize the wake-on-LAN settings */
+#define PCH_GBE_WL_INIT_SETTING (PCH_GBE_WLC_MP)
+
+#define PCH_GBE_MAC_RGMII_CTRL_SETTING ( \
+ PCH_GBE_CHIP_TYPE_INTERNAL | \
+ PCH_GBE_RGMII_MODE_RGMII \
+ )
+
+/* Ethertype field values */
+#define PCH_GBE_MAX_JUMBO_FRAME_SIZE 10318
+#define PCH_GBE_FRAME_SIZE_2048 2048
+#define PCH_GBE_FRAME_SIZE_4096 4096
+#define PCH_GBE_FRAME_SIZE_8192 8192
+
+#define PCH_GBE_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
+#define PCH_GBE_RX_DESC(R, i) PCH_GBE_GET_DESC(R, i, pch_gbe_rx_desc)
+#define PCH_GBE_TX_DESC(R, i) PCH_GBE_GET_DESC(R, i, pch_gbe_tx_desc)
+#define PCH_GBE_DESC_UNUSED(R) \
+ ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+ (R)->next_to_clean - (R)->next_to_use - 1)
+
+/* Pause packet value */
+#define PCH_GBE_PAUSE_PKT1_VALUE 0x00C28001
+#define PCH_GBE_PAUSE_PKT2_VALUE 0x00000100
+#define PCH_GBE_PAUSE_PKT4_VALUE 0x01000888
+#define PCH_GBE_PAUSE_PKT5_VALUE 0x0000FFFF
+
+#define PCH_GBE_ETH_ALEN 6
+
+/* This defines the bits that are set in the Interrupt Mask
+ * Set/Read Register. Each bit is documented below:
+ * o RXT0 = Receiver Timer Interrupt (ring 0)
+ * o TXDW = Transmit Descriptor Written Back
+ * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
+ * o RXSEQ = Receive Sequence Error
+ * o LSC = Link Status Change
+ */
+#define PCH_GBE_INT_ENABLE_MASK ( \
+ PCH_GBE_INT_RX_DMA_CMPLT | \
+ PCH_GBE_INT_RX_DSC_EMP | \
+ PCH_GBE_INT_WOL_DET | \
+ PCH_GBE_INT_TX_CMPLT \
+ )
+
+
+static unsigned int copybreak __read_mostly = PCH_GBE_COPYBREAK_DEFAULT;
+
+static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg);
+static void pch_gbe_mdio_write(struct net_device *netdev, int addr, int reg,
+ int data);
+
+inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
+{
+ iowrite32(0x01, &hw->reg->MAC_ADDR_LOAD);
+}
+
+/**
+ * pch_gbe_mac_read_mac_addr - Read MAC address
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successful.
+ */
+s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
+{
+ u32 adr1a, adr1b;
+
+ adr1a = ioread32(&hw->reg->mac_adr[0].high);
+ adr1b = ioread32(&hw->reg->mac_adr[0].low);
+
+ hw->mac.addr[0] = (u8)(adr1a & 0xFF);
+ hw->mac.addr[1] = (u8)((adr1a >> 8) & 0xFF);
+ hw->mac.addr[2] = (u8)((adr1a >> 16) & 0xFF);
+ hw->mac.addr[3] = (u8)((adr1a >> 24) & 0xFF);
+ hw->mac.addr[4] = (u8)(adr1b & 0xFF);
+ hw->mac.addr[5] = (u8)((adr1b >> 8) & 0xFF);
+
+ pr_debug("hw->mac.addr : %pM\n", hw->mac.addr);
+ return 0;
+}
+
+/**
+ * pch_gbe_wait_clr_bit - Wait to clear a bit
+ * @reg: Pointer of register
+ * @busy: Busy bit
+ */
+static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
+{
+ u32 tmp;
+ /* wait busy */
+ tmp = 1000;
+ while ((ioread32(reg) & bit) && --tmp)
+ cpu_relax();
+ if (!tmp)
+ pr_err("Error: busy bit is not cleared\n");
+}
+/**
+ * pch_gbe_mac_mar_set - Set MAC address register
+ * @hw: Pointer to the HW structure
+ * @addr: Pointer to the MAC address
+ * @index: MAC address array register
+ */
+static void pch_gbe_mac_mar_set(struct pch_gbe_hw *hw, u8 * addr, u32 index)
+{
+ u32 mar_low, mar_high, adrmask;
+
+ pr_debug("index : 0x%x\n", index);
+
+ /*
+ * HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ mar_high = ((u32) addr[0] | ((u32) addr[1] << 8) |
+ ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
+ mar_low = ((u32) addr[4] | ((u32) addr[5] << 8));
+ /* Stop the MAC Address of index. */
+ adrmask = ioread32(&hw->reg->ADDR_MASK);
+ iowrite32((adrmask | (0x0001 << index)), &hw->reg->ADDR_MASK);
+ /* wait busy */
+ pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
+ /* Set the MAC address to the MAC address 1A/1B register */
+ iowrite32(mar_high, &hw->reg->mac_adr[index].high);
+ iowrite32(mar_low, &hw->reg->mac_adr[index].low);
+ /* Start the MAC address of index */
+ iowrite32((adrmask & ~(0x0001 << index)), &hw->reg->ADDR_MASK);
+ /* wait busy */
+ pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
+}
+
+/**
+ * pch_gbe_mac_reset_hw - Reset hardware
+ * @hw: Pointer to the HW structure
+ */
+static void pch_gbe_mac_reset_hw(struct pch_gbe_hw *hw)
+{
+ /* Read the MAC address. and store to the private data */
+ pch_gbe_mac_read_mac_addr(hw);
+ iowrite32(PCH_GBE_ALL_RST, &hw->reg->RESET);
+#ifdef PCH_GBE_MAC_IFOP_RGMII
+ iowrite32(PCH_GBE_MODE_GMII_ETHER, &hw->reg->MODE);
+#endif
+ pch_gbe_wait_clr_bit(&hw->reg->RESET, PCH_GBE_ALL_RST);
+ /* Setup the receive address */
+ pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
+ return;
+}
+
+/**
+ * pch_gbe_mac_init_rx_addrs - Initialize receive address's
+ * @hw: Pointer to the HW structure
+ * @mar_count: Receive address registers
+ */
+static void pch_gbe_mac_init_rx_addrs(struct pch_gbe_hw *hw, u16 mar_count)
+{
+ u32 i;
+
+ /* Setup the receive address */
+ pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
+
+ /* Zero out the other receive addresses */
+ for (i = 1; i < mar_count; i++) {
+ iowrite32(0, &hw->reg->mac_adr[i].high);
+ iowrite32(0, &hw->reg->mac_adr[i].low);
+ }
+ iowrite32(0xFFFE, &hw->reg->ADDR_MASK);
+ /* wait busy */
+ pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
+}
+
+
+/**
+ * pch_gbe_mac_mc_addr_list_update - Update Multicast addresses
+ * @hw: Pointer to the HW structure
+ * @mc_addr_list: Array of multicast addresses to program
+ * @mc_addr_count: Number of multicast addresses to program
+ * @mar_used_count: The first MAC Address register free to program
+ * @mar_total_num: Total number of supported MAC Address Registers
+ */
+static void pch_gbe_mac_mc_addr_list_update(struct pch_gbe_hw *hw,
+ u8 *mc_addr_list, u32 mc_addr_count,
+ u32 mar_used_count, u32 mar_total_num)
+{
+ u32 i, adrmask;
+
+ /* Load the first set of multicast addresses into the exact
+ * filters (RAR). If there are not enough to fill the RAR
+ * array, clear the filters.
+ */
+ for (i = mar_used_count; i < mar_total_num; i++) {
+ if (mc_addr_count) {
+ pch_gbe_mac_mar_set(hw, mc_addr_list, i);
+ mc_addr_count--;
+ mc_addr_list += PCH_GBE_ETH_ALEN;
+ } else {
+ /* Clear MAC address mask */
+ adrmask = ioread32(&hw->reg->ADDR_MASK);
+ iowrite32((adrmask | (0x0001 << i)),
+ &hw->reg->ADDR_MASK);
+ /* wait busy */
+ pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
+ /* Clear MAC address */
+ iowrite32(0, &hw->reg->mac_adr[i].high);
+ iowrite32(0, &hw->reg->mac_adr[i].low);
+ }
+ }
+}
+
+/**
+ * pch_gbe_mac_force_mac_fc - Force the MAC's flow control settings
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
+{
+ struct pch_gbe_mac_info *mac = &hw->mac;
+ u32 rx_fctrl;
+
+ pr_debug("mac->fc = %u\n", mac->fc);
+
+ rx_fctrl = ioread32(&hw->reg->RX_FCTRL);
+
+ switch (mac->fc) {
+ case PCH_GBE_FC_NONE:
+ rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
+ mac->tx_fc_enable = false;
+ break;
+ case PCH_GBE_FC_RX_PAUSE:
+ rx_fctrl |= PCH_GBE_FL_CTRL_EN;
+ mac->tx_fc_enable = false;
+ break;
+ case PCH_GBE_FC_TX_PAUSE:
+ rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
+ mac->tx_fc_enable = true;
+ break;
+ case PCH_GBE_FC_FULL:
+ rx_fctrl |= PCH_GBE_FL_CTRL_EN;
+ mac->tx_fc_enable = true;
+ break;
+ default:
+ pr_err("Flow control param set incorrectly\n");
+ return -EINVAL;
+ }
+ if (mac->link_duplex == DUPLEX_HALF)
+ rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
+ iowrite32(rx_fctrl, &hw->reg->RX_FCTRL);
+ pr_debug("RX_FCTRL reg : 0x%08x mac->tx_fc_enable : %d\n",
+ ioread32(&hw->reg->RX_FCTRL), mac->tx_fc_enable);
+ return 0;
+}
+
+/**
+ * pch_gbe_mac_set_wol_event - Set wake-on-lan event
+ * @hw: Pointer to the HW structure
+ * @wu_evt: Wake up event
+ */
+static void pch_gbe_mac_set_wol_event(struct pch_gbe_hw *hw, u32 wu_evt)
+{
+ u32 addr_mask;
+
+ pr_debug("wu_evt : 0x%08x ADDR_MASK reg : 0x%08x\n",
+ wu_evt, ioread32(&hw->reg->ADDR_MASK));
+
+ if (wu_evt) {
+ /* Set Wake-On-Lan address mask */
+ addr_mask = ioread32(&hw->reg->ADDR_MASK);
+ iowrite32(addr_mask, &hw->reg->WOL_ADDR_MASK);
+ /* wait busy */
+ pch_gbe_wait_clr_bit(&hw->reg->WOL_ADDR_MASK, PCH_GBE_WLA_BUSY);
+ iowrite32(0, &hw->reg->WOL_ST);
+ iowrite32((wu_evt | PCH_GBE_WLC_WOL_MODE), &hw->reg->WOL_CTRL);
+ iowrite32(0x02, &hw->reg->TCPIP_ACC);
+ iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
+ } else {
+ iowrite32(0, &hw->reg->WOL_CTRL);
+ iowrite32(0, &hw->reg->WOL_ST);
+ }
+ return;
+}
+
+/**
+ * pch_gbe_mac_ctrl_miim - Control MIIM interface
+ * @hw: Pointer to the HW structure
+ * @addr: Address of PHY
+ * @dir: Operetion. (Write or Read)
+ * @reg: Access register of PHY
+ * @data: Write data.
+ *
+ * Returns: Read date.
+ */
+u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
+ u16 data)
+{
+ u32 data_out = 0;
+ unsigned int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&hw->miim_lock, flags);
+
+ for (i = 100; i; --i) {
+ if ((ioread32(&hw->reg->MIIM) & PCH_GBE_MIIM_OPER_READY))
+ break;
+ udelay(20);
+ }
+ if (i == 0) {
+ pr_err("pch-gbe.miim won't go Ready\n");
+ spin_unlock_irqrestore(&hw->miim_lock, flags);
+ return 0; /* No way to indicate timeout error */
+ }
+ iowrite32(((reg << PCH_GBE_MIIM_REG_ADDR_SHIFT) |
+ (addr << PCH_GBE_MIIM_PHY_ADDR_SHIFT) |
+ dir | data), &hw->reg->MIIM);
+ for (i = 0; i < 100; i++) {
+ udelay(20);
+ data_out = ioread32(&hw->reg->MIIM);
+ if ((data_out & PCH_GBE_MIIM_OPER_READY))
+ break;
+ }
+ spin_unlock_irqrestore(&hw->miim_lock, flags);
+
+ pr_debug("PHY %s: reg=%d, data=0x%04X\n",
+ dir == PCH_GBE_MIIM_OPER_READ ? "READ" : "WRITE", reg,
+ dir == PCH_GBE_MIIM_OPER_READ ? data_out : data);
+ return (u16) data_out;
+}
+
+/**
+ * pch_gbe_mac_set_pause_packet - Set pause packet
+ * @hw: Pointer to the HW structure
+ */
+static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
+{
+ unsigned long tmp2, tmp3;
+
+ /* Set Pause packet */
+ tmp2 = hw->mac.addr[1];
+ tmp2 = (tmp2 << 8) | hw->mac.addr[0];
+ tmp2 = PCH_GBE_PAUSE_PKT2_VALUE | (tmp2 << 16);
+
+ tmp3 = hw->mac.addr[5];
+ tmp3 = (tmp3 << 8) | hw->mac.addr[4];
+ tmp3 = (tmp3 << 8) | hw->mac.addr[3];
+ tmp3 = (tmp3 << 8) | hw->mac.addr[2];
+
+ iowrite32(PCH_GBE_PAUSE_PKT1_VALUE, &hw->reg->PAUSE_PKT1);
+ iowrite32(tmp2, &hw->reg->PAUSE_PKT2);
+ iowrite32(tmp3, &hw->reg->PAUSE_PKT3);
+ iowrite32(PCH_GBE_PAUSE_PKT4_VALUE, &hw->reg->PAUSE_PKT4);
+ iowrite32(PCH_GBE_PAUSE_PKT5_VALUE, &hw->reg->PAUSE_PKT5);
+
+ /* Transmit Pause Packet */
+ iowrite32(PCH_GBE_PS_PKT_RQ, &hw->reg->PAUSE_REQ);
+
+ pr_debug("PAUSE_PKT1-5 reg : 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ ioread32(&hw->reg->PAUSE_PKT1), ioread32(&hw->reg->PAUSE_PKT2),
+ ioread32(&hw->reg->PAUSE_PKT3), ioread32(&hw->reg->PAUSE_PKT4),
+ ioread32(&hw->reg->PAUSE_PKT5));
+
+ return;
+}
+
+
+/**
+ * pch_gbe_alloc_queues - Allocate memory for all rings
+ * @adapter: Board private structure to initialize
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_alloc_queues(struct pch_gbe_adapter *adapter)
+{
+ int size;
+
+ size = (int)sizeof(struct pch_gbe_tx_ring);
+ adapter->tx_ring = kzalloc(size, GFP_KERNEL);
+ if (!adapter->tx_ring)
+ return -ENOMEM;
+ size = (int)sizeof(struct pch_gbe_rx_ring);
+ adapter->rx_ring = kzalloc(size, GFP_KERNEL);
+ if (!adapter->rx_ring) {
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+/**
+ * pch_gbe_init_stats - Initialize status
+ * @adapter: Board private structure to initialize
+ */
+static void pch_gbe_init_stats(struct pch_gbe_adapter *adapter)
+{
+ memset(&adapter->stats, 0, sizeof(adapter->stats));
+ return;
+}
+
+/**
+ * pch_gbe_init_phy - Initialize PHY
+ * @adapter: Board private structure to initialize
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_init_phy(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ u32 addr;
+ u16 bmcr, stat;
+
+ /* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
+ for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
+ adapter->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
+ bmcr = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMCR);
+ stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
+ stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
+ if (!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
+ break;
+ }
+ adapter->hw.phy.addr = adapter->mii.phy_id;
+ pr_debug("phy_addr = %d\n", adapter->mii.phy_id);
+ if (addr == 32)
+ return -EAGAIN;
+ /* Selected the phy and isolate the rest */
+ for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
+ if (addr != adapter->mii.phy_id) {
+ pch_gbe_mdio_write(netdev, addr, MII_BMCR,
+ BMCR_ISOLATE);
+ } else {
+ bmcr = pch_gbe_mdio_read(netdev, addr, MII_BMCR);
+ pch_gbe_mdio_write(netdev, addr, MII_BMCR,
+ bmcr & ~BMCR_ISOLATE);
+ }
+ }
+
+ /* MII setup */
+ adapter->mii.phy_id_mask = 0x1F;
+ adapter->mii.reg_num_mask = 0x1F;
+ adapter->mii.dev = adapter->netdev;
+ adapter->mii.mdio_read = pch_gbe_mdio_read;
+ adapter->mii.mdio_write = pch_gbe_mdio_write;
+ adapter->mii.supports_gmii = mii_check_gmii_support(&adapter->mii);
+ return 0;
+}
+
+/**
+ * pch_gbe_mdio_read - The read function for mii
+ * @netdev: Network interface device structure
+ * @addr: Phy ID
+ * @reg: Access location
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ return pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_READ, reg,
+ (u16) 0);
+}
+
+/**
+ * pch_gbe_mdio_write - The write function for mii
+ * @netdev: Network interface device structure
+ * @addr: Phy ID (not used)
+ * @reg: Access location
+ * @data: Write data
+ */
+static void pch_gbe_mdio_write(struct net_device *netdev,
+ int addr, int reg, int data)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_WRITE, reg, data);
+}
+
+/**
+ * pch_gbe_reset_task - Reset processing at the time of transmission timeout
+ * @work: Pointer of board private structure
+ */
+static void pch_gbe_reset_task(struct work_struct *work)
+{
+ struct pch_gbe_adapter *adapter;
+ adapter = container_of(work, struct pch_gbe_adapter, reset_task);
+
+ rtnl_lock();
+ pch_gbe_reinit_locked(adapter);
+ rtnl_unlock();
+}
+
+/**
+ * pch_gbe_reinit_locked- Re-initialization
+ * @adapter: Board private structure
+ */
+void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter)
+{
+ pch_gbe_down(adapter);
+ pch_gbe_up(adapter);
+}
+
+/**
+ * pch_gbe_reset - Reset GbE
+ * @adapter: Board private structure
+ */
+void pch_gbe_reset(struct pch_gbe_adapter *adapter)
+{
+ pch_gbe_mac_reset_hw(&adapter->hw);
+ /* Setup the receive address. */
+ pch_gbe_mac_init_rx_addrs(&adapter->hw, PCH_GBE_MAR_ENTRIES);
+ if (pch_gbe_hal_init_hw(&adapter->hw))
+ pr_err("Hardware Error\n");
+}
+
+/**
+ * pch_gbe_free_irq - Free an interrupt
+ * @adapter: Board private structure
+ */
+static void pch_gbe_free_irq(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ free_irq(adapter->pdev->irq, netdev);
+ if (adapter->have_msi) {
+ pci_disable_msi(adapter->pdev);
+ pr_debug("call pci_disable_msi\n");
+ }
+}
+
+/**
+ * pch_gbe_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: Board private structure
+ */
+static void pch_gbe_irq_disable(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ atomic_inc(&adapter->irq_sem);
+ iowrite32(0, &hw->reg->INT_EN);
+ ioread32(&hw->reg->INT_ST);
+ synchronize_irq(adapter->pdev->irq);
+
+ pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
+}
+
+/**
+ * pch_gbe_irq_enable - Enable default interrupt generation settings
+ * @adapter: Board private structure
+ */
+static void pch_gbe_irq_enable(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ if (likely(atomic_dec_and_test(&adapter->irq_sem)))
+ iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
+ ioread32(&hw->reg->INT_ST);
+ pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
+}
+
+
+
+/**
+ * pch_gbe_setup_tctl - configure the Transmit control registers
+ * @adapter: Board private structure
+ */
+static void pch_gbe_setup_tctl(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 tx_mode, tcpip;
+
+ tx_mode = PCH_GBE_TM_LONG_PKT |
+ PCH_GBE_TM_ST_AND_FD |
+ PCH_GBE_TM_SHORT_PKT |
+ PCH_GBE_TM_TH_TX_STRT_8 |
+ PCH_GBE_TM_TH_ALM_EMP_4 | PCH_GBE_TM_TH_ALM_FULL_8;
+
+ iowrite32(tx_mode, &hw->reg->TX_MODE);
+
+ tcpip = ioread32(&hw->reg->TCPIP_ACC);
+ tcpip |= PCH_GBE_TX_TCPIPACC_EN;
+ iowrite32(tcpip, &hw->reg->TCPIP_ACC);
+ return;
+}
+
+/**
+ * pch_gbe_configure_tx - Configure Transmit Unit after Reset
+ * @adapter: Board private structure
+ */
+static void pch_gbe_configure_tx(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 tdba, tdlen, dctrl;
+
+ pr_debug("dma addr = 0x%08llx size = 0x%08x\n",
+ (unsigned long long)adapter->tx_ring->dma,
+ adapter->tx_ring->size);
+
+ /* Setup the HW Tx Head and Tail descriptor pointers */
+ tdba = adapter->tx_ring->dma;
+ tdlen = adapter->tx_ring->size - 0x10;
+ iowrite32(tdba, &hw->reg->TX_DSC_BASE);
+ iowrite32(tdlen, &hw->reg->TX_DSC_SIZE);
+ iowrite32(tdba, &hw->reg->TX_DSC_SW_P);
+
+ /* Enables Transmission DMA */
+ dctrl = ioread32(&hw->reg->DMA_CTRL);
+ dctrl |= PCH_GBE_TX_DMA_EN;
+ iowrite32(dctrl, &hw->reg->DMA_CTRL);
+}
+
+/**
+ * pch_gbe_setup_rctl - Configure the receive control registers
+ * @adapter: Board private structure
+ */
+static void pch_gbe_setup_rctl(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 rx_mode, tcpip;
+
+ rx_mode = PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN |
+ PCH_GBE_RH_ALM_EMP_4 | PCH_GBE_RH_ALM_FULL_4 | PCH_GBE_RH_RD_TRG_8;
+
+ iowrite32(rx_mode, &hw->reg->RX_MODE);
+
+ tcpip = ioread32(&hw->reg->TCPIP_ACC);
+
+ if (netdev->features & NETIF_F_RXCSUM) {
+ tcpip &= ~PCH_GBE_RX_TCPIPACC_OFF;
+ tcpip |= PCH_GBE_RX_TCPIPACC_EN;
+ } else {
+ tcpip |= PCH_GBE_RX_TCPIPACC_OFF;
+ tcpip &= ~PCH_GBE_RX_TCPIPACC_EN;
+ }
+ iowrite32(tcpip, &hw->reg->TCPIP_ACC);
+ return;
+}
+
+/**
+ * pch_gbe_configure_rx - Configure Receive Unit after Reset
+ * @adapter: Board private structure
+ */
+static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 rdba, rdlen, rctl, rxdma;
+
+ pr_debug("dma adr = 0x%08llx size = 0x%08x\n",
+ (unsigned long long)adapter->rx_ring->dma,
+ adapter->rx_ring->size);
+
+ pch_gbe_mac_force_mac_fc(hw);
+
+ /* Disables Receive MAC */
+ rctl = ioread32(&hw->reg->MAC_RX_EN);
+ iowrite32((rctl & ~PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN);
+
+ /* Disables Receive DMA */
+ rxdma = ioread32(&hw->reg->DMA_CTRL);
+ rxdma &= ~PCH_GBE_RX_DMA_EN;
+ iowrite32(rxdma, &hw->reg->DMA_CTRL);
+
+ pr_debug("MAC_RX_EN reg = 0x%08x DMA_CTRL reg = 0x%08x\n",
+ ioread32(&hw->reg->MAC_RX_EN),
+ ioread32(&hw->reg->DMA_CTRL));
+
+ /* Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring */
+ rdba = adapter->rx_ring->dma;
+ rdlen = adapter->rx_ring->size - 0x10;
+ iowrite32(rdba, &hw->reg->RX_DSC_BASE);
+ iowrite32(rdlen, &hw->reg->RX_DSC_SIZE);
+ iowrite32((rdba + rdlen), &hw->reg->RX_DSC_SW_P);
+
+ /* Enables Receive DMA */
+ rxdma = ioread32(&hw->reg->DMA_CTRL);
+ rxdma |= PCH_GBE_RX_DMA_EN;
+ iowrite32(rxdma, &hw->reg->DMA_CTRL);
+ /* Enables Receive */
+ iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN);
+}
+
+/**
+ * pch_gbe_unmap_and_free_tx_resource - Unmap and free tx socket buffer
+ * @adapter: Board private structure
+ * @buffer_info: Buffer information structure
+ */
+static void pch_gbe_unmap_and_free_tx_resource(
+ struct pch_gbe_adapter *adapter, struct pch_gbe_buffer *buffer_info)
+{
+ if (buffer_info->mapped) {
+ dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
+ buffer_info->length, DMA_TO_DEVICE);
+ buffer_info->mapped = false;
+ }
+ if (buffer_info->skb) {
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+}
+
+/**
+ * pch_gbe_unmap_and_free_rx_resource - Unmap and free rx socket buffer
+ * @adapter: Board private structure
+ * @buffer_info: Buffer information structure
+ */
+static void pch_gbe_unmap_and_free_rx_resource(
+ struct pch_gbe_adapter *adapter,
+ struct pch_gbe_buffer *buffer_info)
+{
+ if (buffer_info->mapped) {
+ dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
+ buffer_info->length, DMA_FROM_DEVICE);
+ buffer_info->mapped = false;
+ }
+ if (buffer_info->skb) {
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+}
+
+/**
+ * pch_gbe_clean_tx_ring - Free Tx Buffers
+ * @adapter: Board private structure
+ * @tx_ring: Ring to be cleaned
+ */
+static void pch_gbe_clean_tx_ring(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct pch_gbe_buffer *buffer_info;
+ unsigned long size;
+ unsigned int i;
+
+ /* Free all the Tx ring sk_buffs */
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+ pch_gbe_unmap_and_free_tx_resource(adapter, buffer_info);
+ }
+ pr_debug("call pch_gbe_unmap_and_free_tx_resource() %d count\n", i);
+
+ size = (unsigned long)sizeof(struct pch_gbe_buffer) * tx_ring->count;
+ memset(tx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(tx_ring->desc, 0, tx_ring->size);
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+ iowrite32(tx_ring->dma, &hw->reg->TX_DSC_HW_P);
+ iowrite32((tx_ring->size - 0x10), &hw->reg->TX_DSC_SIZE);
+}
+
+/**
+ * pch_gbe_clean_rx_ring - Free Rx Buffers
+ * @adapter: Board private structure
+ * @rx_ring: Ring to free buffers from
+ */
+static void
+pch_gbe_clean_rx_ring(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_rx_ring *rx_ring)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct pch_gbe_buffer *buffer_info;
+ unsigned long size;
+ unsigned int i;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ pch_gbe_unmap_and_free_rx_resource(adapter, buffer_info);
+ }
+ pr_debug("call pch_gbe_unmap_and_free_rx_resource() %d count\n", i);
+ size = (unsigned long)sizeof(struct pch_gbe_buffer) * rx_ring->count;
+ memset(rx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(rx_ring->desc, 0, rx_ring->size);
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+ iowrite32(rx_ring->dma, &hw->reg->RX_DSC_HW_P);
+ iowrite32((rx_ring->size - 0x10), &hw->reg->RX_DSC_SIZE);
+}
+
+static void pch_gbe_set_rgmii_ctrl(struct pch_gbe_adapter *adapter, u16 speed,
+ u16 duplex)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ unsigned long rgmii = 0;
+
+ /* Set the RGMII control. */
+#ifdef PCH_GBE_MAC_IFOP_RGMII
+ switch (speed) {
+ case SPEED_10:
+ rgmii = (PCH_GBE_RGMII_RATE_2_5M |
+ PCH_GBE_MAC_RGMII_CTRL_SETTING);
+ break;
+ case SPEED_100:
+ rgmii = (PCH_GBE_RGMII_RATE_25M |
+ PCH_GBE_MAC_RGMII_CTRL_SETTING);
+ break;
+ case SPEED_1000:
+ rgmii = (PCH_GBE_RGMII_RATE_125M |
+ PCH_GBE_MAC_RGMII_CTRL_SETTING);
+ break;
+ }
+ iowrite32(rgmii, &hw->reg->RGMII_CTRL);
+#else /* GMII */
+ rgmii = 0;
+ iowrite32(rgmii, &hw->reg->RGMII_CTRL);
+#endif
+}
+static void pch_gbe_set_mode(struct pch_gbe_adapter *adapter, u16 speed,
+ u16 duplex)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pch_gbe_hw *hw = &adapter->hw;
+ unsigned long mode = 0;
+
+ /* Set the communication mode */
+ switch (speed) {
+ case SPEED_10:
+ mode = PCH_GBE_MODE_MII_ETHER;
+ netdev->tx_queue_len = 10;
+ break;
+ case SPEED_100:
+ mode = PCH_GBE_MODE_MII_ETHER;
+ netdev->tx_queue_len = 100;
+ break;
+ case SPEED_1000:
+ mode = PCH_GBE_MODE_GMII_ETHER;
+ break;
+ }
+ if (duplex == DUPLEX_FULL)
+ mode |= PCH_GBE_MODE_FULL_DUPLEX;
+ else
+ mode |= PCH_GBE_MODE_HALF_DUPLEX;
+ iowrite32(mode, &hw->reg->MODE);
+}
+
+/**
+ * pch_gbe_watchdog - Watchdog process
+ * @data: Board private structure
+ */
+static void pch_gbe_watchdog(unsigned long data)
+{
+ struct pch_gbe_adapter *adapter = (struct pch_gbe_adapter *)data;
+ struct net_device *netdev = adapter->netdev;
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ pr_debug("right now = %ld\n", jiffies);
+
+ pch_gbe_update_stats(adapter);
+ if ((mii_link_ok(&adapter->mii)) && (!netif_carrier_ok(netdev))) {
+ struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ /* mii library handles link maintenance tasks */
+ if (mii_ethtool_gset(&adapter->mii, &cmd)) {
+ pr_err("ethtool get setting Error\n");
+ mod_timer(&adapter->watchdog_timer,
+ round_jiffies(jiffies +
+ PCH_GBE_WATCHDOG_PERIOD));
+ return;
+ }
+ hw->mac.link_speed = ethtool_cmd_speed(&cmd);
+ hw->mac.link_duplex = cmd.duplex;
+ /* Set the RGMII control. */
+ pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
+ hw->mac.link_duplex);
+ /* Set the communication mode */
+ pch_gbe_set_mode(adapter, hw->mac.link_speed,
+ hw->mac.link_duplex);
+ netdev_dbg(netdev,
+ "Link is Up %d Mbps %s-Duplex\n",
+ hw->mac.link_speed,
+ cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ } else if ((!mii_link_ok(&adapter->mii)) &&
+ (netif_carrier_ok(netdev))) {
+ netdev_dbg(netdev, "NIC Link is Down\n");
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ }
+ mod_timer(&adapter->watchdog_timer,
+ round_jiffies(jiffies + PCH_GBE_WATCHDOG_PERIOD));
+}
+
+/**
+ * pch_gbe_tx_queue - Carry out queuing of the transmission data
+ * @adapter: Board private structure
+ * @tx_ring: Tx descriptor ring structure
+ * @skb: Sockt buffer structure
+ */
+static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring,
+ struct sk_buff *skb)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct pch_gbe_tx_desc *tx_desc;
+ struct pch_gbe_buffer *buffer_info;
+ struct sk_buff *tmp_skb;
+ unsigned int frame_ctrl;
+ unsigned int ring_num;
+ unsigned long flags;
+
+ /*-- Set frame control --*/
+ frame_ctrl = 0;
+ if (unlikely(skb->len < PCH_GBE_SHORT_PKT))
+ frame_ctrl |= PCH_GBE_TXD_CTRL_APAD;
+ if (skb->ip_summed == CHECKSUM_NONE)
+ frame_ctrl |= PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
+
+ /* Performs checksum processing */
+ /*
+ * It is because the hardware accelerator does not support a checksum,
+ * when the received data size is less than 64 bytes.
+ */
+ if (skb->len < PCH_GBE_SHORT_PKT && skb->ip_summed != CHECKSUM_NONE) {
+ frame_ctrl |= PCH_GBE_TXD_CTRL_APAD |
+ PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = ip_hdr(skb);
+ unsigned int offset;
+ iph->check = 0;
+ iph->check = ip_fast_csum((u8 *) iph, iph->ihl);
+ offset = skb_transport_offset(skb);
+ if (iph->protocol == IPPROTO_TCP) {
+ skb->csum = 0;
+ tcp_hdr(skb)->check = 0;
+ skb->csum = skb_checksum(skb, offset,
+ skb->len - offset, 0);
+ tcp_hdr(skb)->check =
+ csum_tcpudp_magic(iph->saddr,
+ iph->daddr,
+ skb->len - offset,
+ IPPROTO_TCP,
+ skb->csum);
+ } else if (iph->protocol == IPPROTO_UDP) {
+ skb->csum = 0;
+ udp_hdr(skb)->check = 0;
+ skb->csum =
+ skb_checksum(skb, offset,
+ skb->len - offset, 0);
+ udp_hdr(skb)->check =
+ csum_tcpudp_magic(iph->saddr,
+ iph->daddr,
+ skb->len - offset,
+ IPPROTO_UDP,
+ skb->csum);
+ }
+ }
+ }
+ spin_lock_irqsave(&tx_ring->tx_lock, flags);
+ ring_num = tx_ring->next_to_use;
+ if (unlikely((ring_num + 1) == tx_ring->count))
+ tx_ring->next_to_use = 0;
+ else
+ tx_ring->next_to_use = ring_num + 1;
+
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ buffer_info = &tx_ring->buffer_info[ring_num];
+ tmp_skb = buffer_info->skb;
+
+ /* [Header:14][payload] ---> [Header:14][paddong:2][payload] */
+ memcpy(tmp_skb->data, skb->data, ETH_HLEN);
+ tmp_skb->data[ETH_HLEN] = 0x00;
+ tmp_skb->data[ETH_HLEN + 1] = 0x00;
+ tmp_skb->len = skb->len;
+ memcpy(&tmp_skb->data[ETH_HLEN + 2], &skb->data[ETH_HLEN],
+ (skb->len - ETH_HLEN));
+ /*-- Set Buffer information --*/
+ buffer_info->length = tmp_skb->len;
+ buffer_info->dma = dma_map_single(&adapter->pdev->dev, tmp_skb->data,
+ buffer_info->length,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
+ pr_err("TX DMA map failed\n");
+ buffer_info->dma = 0;
+ buffer_info->time_stamp = 0;
+ tx_ring->next_to_use = ring_num;
+ return;
+ }
+ buffer_info->mapped = true;
+ buffer_info->time_stamp = jiffies;
+
+ /*-- Set Tx descriptor --*/
+ tx_desc = PCH_GBE_TX_DESC(*tx_ring, ring_num);
+ tx_desc->buffer_addr = (buffer_info->dma);
+ tx_desc->length = (tmp_skb->len);
+ tx_desc->tx_words_eob = ((tmp_skb->len + 3));
+ tx_desc->tx_frame_ctrl = (frame_ctrl);
+ tx_desc->gbec_status = (DSC_INIT16);
+
+ if (unlikely(++ring_num == tx_ring->count))
+ ring_num = 0;
+
+ /* Update software pointer of TX descriptor */
+ iowrite32(tx_ring->dma +
+ (int)sizeof(struct pch_gbe_tx_desc) * ring_num,
+ &hw->reg->TX_DSC_SW_P);
+ dev_kfree_skb_any(skb);
+}
+
+/**
+ * pch_gbe_update_stats - Update the board statistics counters
+ * @adapter: Board private structure
+ */
+void pch_gbe_update_stats(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct pch_gbe_hw_stats *stats = &adapter->stats;
+ unsigned long flags;
+
+ /*
+ * Prevent stats update while adapter is being reset, or if the pci
+ * connection is down.
+ */
+ if ((pdev->error_state) && (pdev->error_state != pci_channel_io_normal))
+ return;
+
+ spin_lock_irqsave(&adapter->stats_lock, flags);
+
+ /* Update device status "adapter->stats" */
+ stats->rx_errors = stats->rx_crc_errors + stats->rx_frame_errors;
+ stats->tx_errors = stats->tx_length_errors +
+ stats->tx_aborted_errors +
+ stats->tx_carrier_errors + stats->tx_timeout_count;
+
+ /* Update network device status "adapter->net_stats" */
+ netdev->stats.rx_packets = stats->rx_packets;
+ netdev->stats.rx_bytes = stats->rx_bytes;
+ netdev->stats.rx_dropped = stats->rx_dropped;
+ netdev->stats.tx_packets = stats->tx_packets;
+ netdev->stats.tx_bytes = stats->tx_bytes;
+ netdev->stats.tx_dropped = stats->tx_dropped;
+ /* Fill out the OS statistics structure */
+ netdev->stats.multicast = stats->multicast;
+ netdev->stats.collisions = stats->collisions;
+ /* Rx Errors */
+ netdev->stats.rx_errors = stats->rx_errors;
+ netdev->stats.rx_crc_errors = stats->rx_crc_errors;
+ netdev->stats.rx_frame_errors = stats->rx_frame_errors;
+ /* Tx Errors */
+ netdev->stats.tx_errors = stats->tx_errors;
+ netdev->stats.tx_aborted_errors = stats->tx_aborted_errors;
+ netdev->stats.tx_carrier_errors = stats->tx_carrier_errors;
+
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
+}
+
+/**
+ * pch_gbe_intr - Interrupt Handler
+ * @irq: Interrupt number
+ * @data: Pointer to a network interface device structure
+ * Returns
+ * - IRQ_HANDLED: Our interrupt
+ * - IRQ_NONE: Not our interrupt
+ */
+static irqreturn_t pch_gbe_intr(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 int_st;
+ u32 int_en;
+
+ /* Check request status */
+ int_st = ioread32(&hw->reg->INT_ST);
+ int_st = int_st & ioread32(&hw->reg->INT_EN);
+ /* When request status is no interruption factor */
+ if (unlikely(!int_st))
+ return IRQ_NONE; /* Not our interrupt. End processing. */
+ pr_debug("%s occur int_st = 0x%08x\n", __func__, int_st);
+ if (int_st & PCH_GBE_INT_RX_FRAME_ERR)
+ adapter->stats.intr_rx_frame_err_count++;
+ if (int_st & PCH_GBE_INT_RX_FIFO_ERR)
+ adapter->stats.intr_rx_fifo_err_count++;
+ if (int_st & PCH_GBE_INT_RX_DMA_ERR)
+ adapter->stats.intr_rx_dma_err_count++;
+ if (int_st & PCH_GBE_INT_TX_FIFO_ERR)
+ adapter->stats.intr_tx_fifo_err_count++;
+ if (int_st & PCH_GBE_INT_TX_DMA_ERR)
+ adapter->stats.intr_tx_dma_err_count++;
+ if (int_st & PCH_GBE_INT_TCPIP_ERR)
+ adapter->stats.intr_tcpip_err_count++;
+ /* When Rx descriptor is empty */
+ if ((int_st & PCH_GBE_INT_RX_DSC_EMP)) {
+ adapter->stats.intr_rx_dsc_empty_count++;
+ pr_err("Rx descriptor is empty\n");
+ int_en = ioread32(&hw->reg->INT_EN);
+ iowrite32((int_en & ~PCH_GBE_INT_RX_DSC_EMP), &hw->reg->INT_EN);
+ if (hw->mac.tx_fc_enable) {
+ /* Set Pause packet */
+ pch_gbe_mac_set_pause_packet(hw);
+ }
+ if ((int_en & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))
+ == 0) {
+ return IRQ_HANDLED;
+ }
+ }
+
+ /* When request status is Receive interruption */
+ if ((int_st & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))) {
+ if (likely(napi_schedule_prep(&adapter->napi))) {
+ /* Enable only Rx Descriptor empty */
+ atomic_inc(&adapter->irq_sem);
+ int_en = ioread32(&hw->reg->INT_EN);
+ int_en &=
+ ~(PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT);
+ iowrite32(int_en, &hw->reg->INT_EN);
+ /* Start polling for NAPI */
+ __napi_schedule(&adapter->napi);
+ }
+ }
+ pr_debug("return = 0x%08x INT_EN reg = 0x%08x\n",
+ IRQ_HANDLED, ioread32(&hw->reg->INT_EN));
+ return IRQ_HANDLED;
+}
+
+/**
+ * pch_gbe_alloc_rx_buffers - Replace used receive buffers; legacy & extended
+ * @adapter: Board private structure
+ * @rx_ring: Rx descriptor ring
+ * @cleaned_count: Cleaned count
+ */
+static void
+pch_gbe_alloc_rx_buffers(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_rx_ring *rx_ring, int cleaned_count)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct pch_gbe_rx_desc *rx_desc;
+ struct pch_gbe_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz;
+
+ bufsz = adapter->rx_buffer_len + PCH_GBE_DMA_ALIGN;
+ i = rx_ring->next_to_use;
+
+ while ((cleaned_count--)) {
+ buffer_info = &rx_ring->buffer_info[i];
+ skb = buffer_info->skb;
+ if (skb) {
+ skb_trim(skb, 0);
+ } else {
+ skb = netdev_alloc_skb(netdev, bufsz);
+ if (unlikely(!skb)) {
+ /* Better luck next round */
+ adapter->stats.rx_alloc_buff_failed++;
+ break;
+ }
+ /* 64byte align */
+ skb_reserve(skb, PCH_GBE_DMA_ALIGN);
+
+ buffer_info->skb = skb;
+ buffer_info->length = adapter->rx_buffer_len;
+ }
+ buffer_info->dma = dma_map_single(&pdev->dev,
+ skb->data,
+ buffer_info->length,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
+ dev_kfree_skb(skb);
+ buffer_info->skb = NULL;
+ buffer_info->dma = 0;
+ adapter->stats.rx_alloc_buff_failed++;
+ break; /* while !buffer_info->skb */
+ }
+ buffer_info->mapped = true;
+ rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
+ rx_desc->buffer_addr = (buffer_info->dma);
+ rx_desc->gbec_status = DSC_INIT16;
+
+ pr_debug("i = %d buffer_info->dma = 0x08%llx buffer_info->length = 0x%x\n",
+ i, (unsigned long long)buffer_info->dma,
+ buffer_info->length);
+
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
+ }
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0))
+ i = (rx_ring->count - 1);
+ iowrite32(rx_ring->dma +
+ (int)sizeof(struct pch_gbe_rx_desc) * i,
+ &hw->reg->RX_DSC_SW_P);
+ }
+ return;
+}
+
+/**
+ * pch_gbe_alloc_tx_buffers - Allocate transmit buffers
+ * @adapter: Board private structure
+ * @tx_ring: Tx descriptor ring
+ */
+static void pch_gbe_alloc_tx_buffers(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring)
+{
+ struct pch_gbe_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz;
+ struct pch_gbe_tx_desc *tx_desc;
+
+ bufsz =
+ adapter->hw.mac.max_frame_size + PCH_GBE_DMA_ALIGN + NET_IP_ALIGN;
+
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+ skb = netdev_alloc_skb(adapter->netdev, bufsz);
+ skb_reserve(skb, PCH_GBE_DMA_ALIGN);
+ buffer_info->skb = skb;
+ tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
+ tx_desc->gbec_status = (DSC_INIT16);
+ }
+ return;
+}
+
+/**
+ * pch_gbe_clean_tx - Reclaim resources after transmit completes
+ * @adapter: Board private structure
+ * @tx_ring: Tx descriptor ring
+ * Returns
+ * true: Cleaned the descriptor
+ * false: Not cleaned the descriptor
+ */
+static bool
+pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring)
+{
+ struct pch_gbe_tx_desc *tx_desc;
+ struct pch_gbe_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int cleaned_count = 0;
+ bool cleaned = false;
+
+ pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
+
+ i = tx_ring->next_to_clean;
+ tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
+ pr_debug("gbec_status:0x%04x dma_status:0x%04x\n",
+ tx_desc->gbec_status, tx_desc->dma_status);
+
+ while ((tx_desc->gbec_status & DSC_INIT16) == 0x0000) {
+ pr_debug("gbec_status:0x%04x\n", tx_desc->gbec_status);
+ cleaned = true;
+ buffer_info = &tx_ring->buffer_info[i];
+ skb = buffer_info->skb;
+
+ if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_ABT)) {
+ adapter->stats.tx_aborted_errors++;
+ pr_err("Transfer Abort Error\n");
+ } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CRSER)
+ ) {
+ adapter->stats.tx_carrier_errors++;
+ pr_err("Transfer Carrier Sense Error\n");
+ } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_EXCOL)
+ ) {
+ adapter->stats.tx_aborted_errors++;
+ pr_err("Transfer Collision Abort Error\n");
+ } else if ((tx_desc->gbec_status &
+ (PCH_GBE_TXD_GMAC_STAT_SNGCOL |
+ PCH_GBE_TXD_GMAC_STAT_MLTCOL))) {
+ adapter->stats.collisions++;
+ adapter->stats.tx_packets++;
+ adapter->stats.tx_bytes += skb->len;
+ pr_debug("Transfer Collision\n");
+ } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CMPLT)
+ ) {
+ adapter->stats.tx_packets++;
+ adapter->stats.tx_bytes += skb->len;
+ }
+ if (buffer_info->mapped) {
+ pr_debug("unmap buffer_info->dma : %d\n", i);
+ dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
+ buffer_info->length, DMA_TO_DEVICE);
+ buffer_info->mapped = false;
+ }
+ if (buffer_info->skb) {
+ pr_debug("trim buffer_info->skb : %d\n", i);
+ skb_trim(buffer_info->skb, 0);
+ }
+ tx_desc->gbec_status = DSC_INIT16;
+ if (unlikely(++i == tx_ring->count))
+ i = 0;
+ tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
+
+ /* weight of a sort for tx, to avoid endless transmit cleanup */
+ if (cleaned_count++ == PCH_GBE_TX_WEIGHT)
+ break;
+ }
+ pr_debug("called pch_gbe_unmap_and_free_tx_resource() %d count\n",
+ cleaned_count);
+ /* Recover from running out of Tx resources in xmit_frame */
+ if (unlikely(cleaned && (netif_queue_stopped(adapter->netdev)))) {
+ netif_wake_queue(adapter->netdev);
+ adapter->stats.tx_restart_count++;
+ pr_debug("Tx wake queue\n");
+ }
+ spin_lock(&adapter->tx_queue_lock);
+ tx_ring->next_to_clean = i;
+ spin_unlock(&adapter->tx_queue_lock);
+ pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
+ return cleaned;
+}
+
+/**
+ * pch_gbe_clean_rx - Send received data up the network stack; legacy
+ * @adapter: Board private structure
+ * @rx_ring: Rx descriptor ring
+ * @work_done: Completed count
+ * @work_to_do: Request count
+ * Returns
+ * true: Cleaned the descriptor
+ * false: Not cleaned the descriptor
+ */
+static bool
+pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct pch_gbe_buffer *buffer_info;
+ struct pch_gbe_rx_desc *rx_desc;
+ u32 length;
+ unsigned int i;
+ unsigned int cleaned_count = 0;
+ bool cleaned = false;
+ struct sk_buff *skb, *new_skb;
+ u8 dma_status;
+ u16 gbec_status;
+ u32 tcp_ip_status;
+
+ i = rx_ring->next_to_clean;
+
+ while (*work_done < work_to_do) {
+ /* Check Rx descriptor status */
+ rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
+ if (rx_desc->gbec_status == DSC_INIT16)
+ break;
+ cleaned = true;
+ cleaned_count++;
+
+ dma_status = rx_desc->dma_status;
+ gbec_status = rx_desc->gbec_status;
+ tcp_ip_status = rx_desc->tcp_ip_status;
+ rx_desc->gbec_status = DSC_INIT16;
+ buffer_info = &rx_ring->buffer_info[i];
+ skb = buffer_info->skb;
+
+ /* unmap dma */
+ dma_unmap_single(&pdev->dev, buffer_info->dma,
+ buffer_info->length, DMA_FROM_DEVICE);
+ buffer_info->mapped = false;
+ /* Prefetch the packet */
+ prefetch(skb->data);
+
+ pr_debug("RxDecNo = 0x%04x Status[DMA:0x%02x GBE:0x%04x "
+ "TCP:0x%08x] BufInf = 0x%p\n",
+ i, dma_status, gbec_status, tcp_ip_status,
+ buffer_info);
+ /* Error check */
+ if (unlikely(gbec_status & PCH_GBE_RXD_GMAC_STAT_NOTOCTAL)) {
+ adapter->stats.rx_frame_errors++;
+ pr_err("Receive Not Octal Error\n");
+ } else if (unlikely(gbec_status &
+ PCH_GBE_RXD_GMAC_STAT_NBLERR)) {
+ adapter->stats.rx_frame_errors++;
+ pr_err("Receive Nibble Error\n");
+ } else if (unlikely(gbec_status &
+ PCH_GBE_RXD_GMAC_STAT_CRCERR)) {
+ adapter->stats.rx_crc_errors++;
+ pr_err("Receive CRC Error\n");
+ } else {
+ /* get receive length */
+ /* length convert[-3] */
+ length = (rx_desc->rx_words_eob) - 3;
+
+ /* Decide the data conversion method */
+ if (!(netdev->features & NETIF_F_RXCSUM)) {
+ /* [Header:14][payload] */
+ if (NET_IP_ALIGN) {
+ /* Because alignment differs,
+ * the new_skb is newly allocated,
+ * and data is copied to new_skb.*/
+ new_skb = netdev_alloc_skb(netdev,
+ length + NET_IP_ALIGN);
+ if (!new_skb) {
+ /* dorrop error */
+ pr_err("New skb allocation "
+ "Error\n");
+ goto dorrop;
+ }
+ skb_reserve(new_skb, NET_IP_ALIGN);
+ memcpy(new_skb->data, skb->data,
+ length);
+ skb = new_skb;
+ } else {
+ /* DMA buffer is used as SKB as it is.*/
+ buffer_info->skb = NULL;
+ }
+ } else {
+ /* [Header:14][padding:2][payload] */
+ /* The length includes padding length */
+ length = length - PCH_GBE_DMA_PADDING;
+ if ((length < copybreak) ||
+ (NET_IP_ALIGN != PCH_GBE_DMA_PADDING)) {
+ /* Because alignment differs,
+ * the new_skb is newly allocated,
+ * and data is copied to new_skb.
+ * Padding data is deleted
+ * at the time of a copy.*/
+ new_skb = netdev_alloc_skb(netdev,
+ length + NET_IP_ALIGN);
+ if (!new_skb) {
+ /* dorrop error */
+ pr_err("New skb allocation "
+ "Error\n");
+ goto dorrop;
+ }
+ skb_reserve(new_skb, NET_IP_ALIGN);
+ memcpy(new_skb->data, skb->data,
+ ETH_HLEN);
+ memcpy(&new_skb->data[ETH_HLEN],
+ &skb->data[ETH_HLEN +
+ PCH_GBE_DMA_PADDING],
+ length - ETH_HLEN);
+ skb = new_skb;
+ } else {
+ /* Padding data is deleted
+ * by moving header data.*/
+ memmove(&skb->data[PCH_GBE_DMA_PADDING],
+ &skb->data[0], ETH_HLEN);
+ skb_reserve(skb, NET_IP_ALIGN);
+ buffer_info->skb = NULL;
+ }
+ }
+ /* The length includes FCS length */
+ length = length - ETH_FCS_LEN;
+ /* update status of driver */
+ adapter->stats.rx_bytes += length;
+ adapter->stats.rx_packets++;
+ if ((gbec_status & PCH_GBE_RXD_GMAC_STAT_MARMLT))
+ adapter->stats.multicast++;
+ /* Write meta date of skb */
+ skb_put(skb, length);
+ skb->protocol = eth_type_trans(skb, netdev);
+ if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK)
+ skb->ip_summed = CHECKSUM_NONE;
+ else
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ napi_gro_receive(&adapter->napi, skb);
+ (*work_done)++;
+ pr_debug("Receive skb->ip_summed: %d length: %d\n",
+ skb->ip_summed, length);
+ }
+dorrop:
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= PCH_GBE_RX_BUFFER_WRITE)) {
+ pch_gbe_alloc_rx_buffers(adapter, rx_ring,
+ cleaned_count);
+ cleaned_count = 0;
+ }
+ if (++i == rx_ring->count)
+ i = 0;
+ }
+ rx_ring->next_to_clean = i;
+ if (cleaned_count)
+ pch_gbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
+ return cleaned;
+}
+
+/**
+ * pch_gbe_setup_tx_resources - Allocate Tx resources (Descriptors)
+ * @adapter: Board private structure
+ * @tx_ring: Tx descriptor ring (for a specific queue) to setup
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ struct pch_gbe_tx_desc *tx_desc;
+ int size;
+ int desNo;
+
+ size = (int)sizeof(struct pch_gbe_buffer) * tx_ring->count;
+ tx_ring->buffer_info = vzalloc(size);
+ if (!tx_ring->buffer_info) {
+ pr_err("Unable to allocate memory for the buffer information\n");
+ return -ENOMEM;
+ }
+
+ tx_ring->size = tx_ring->count * (int)sizeof(struct pch_gbe_tx_desc);
+
+ tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
+ &tx_ring->dma, GFP_KERNEL);
+ if (!tx_ring->desc) {
+ vfree(tx_ring->buffer_info);
+ pr_err("Unable to allocate memory for the transmit descriptor ring\n");
+ return -ENOMEM;
+ }
+ memset(tx_ring->desc, 0, tx_ring->size);
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+ spin_lock_init(&tx_ring->tx_lock);
+
+ for (desNo = 0; desNo < tx_ring->count; desNo++) {
+ tx_desc = PCH_GBE_TX_DESC(*tx_ring, desNo);
+ tx_desc->gbec_status = DSC_INIT16;
+ }
+ pr_debug("tx_ring->desc = 0x%p tx_ring->dma = 0x%08llx\n"
+ "next_to_clean = 0x%08x next_to_use = 0x%08x\n",
+ tx_ring->desc, (unsigned long long)tx_ring->dma,
+ tx_ring->next_to_clean, tx_ring->next_to_use);
+ return 0;
+}
+
+/**
+ * pch_gbe_setup_rx_resources - Allocate Rx resources (Descriptors)
+ * @adapter: Board private structure
+ * @rx_ring: Rx descriptor ring (for a specific queue) to setup
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_rx_ring *rx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ struct pch_gbe_rx_desc *rx_desc;
+ int size;
+ int desNo;
+
+ size = (int)sizeof(struct pch_gbe_buffer) * rx_ring->count;
+ rx_ring->buffer_info = vzalloc(size);
+ if (!rx_ring->buffer_info) {
+ pr_err("Unable to allocate memory for the receive descriptor ring\n");
+ return -ENOMEM;
+ }
+ rx_ring->size = rx_ring->count * (int)sizeof(struct pch_gbe_rx_desc);
+ rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
+ &rx_ring->dma, GFP_KERNEL);
+
+ if (!rx_ring->desc) {
+ pr_err("Unable to allocate memory for the receive descriptor ring\n");
+ vfree(rx_ring->buffer_info);
+ return -ENOMEM;
+ }
+ memset(rx_ring->desc, 0, rx_ring->size);
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+ for (desNo = 0; desNo < rx_ring->count; desNo++) {
+ rx_desc = PCH_GBE_RX_DESC(*rx_ring, desNo);
+ rx_desc->gbec_status = DSC_INIT16;
+ }
+ pr_debug("rx_ring->desc = 0x%p rx_ring->dma = 0x%08llx "
+ "next_to_clean = 0x%08x next_to_use = 0x%08x\n",
+ rx_ring->desc, (unsigned long long)rx_ring->dma,
+ rx_ring->next_to_clean, rx_ring->next_to_use);
+ return 0;
+}
+
+/**
+ * pch_gbe_free_tx_resources - Free Tx Resources
+ * @adapter: Board private structure
+ * @tx_ring: Tx descriptor ring for a specific queue
+ */
+void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_tx_ring *tx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+
+ pch_gbe_clean_tx_ring(adapter, tx_ring);
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+ pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
+ tx_ring->desc = NULL;
+}
+
+/**
+ * pch_gbe_free_rx_resources - Free Rx Resources
+ * @adapter: Board private structure
+ * @rx_ring: Ring to clean the resources from
+ */
+void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
+ struct pch_gbe_rx_ring *rx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+
+ pch_gbe_clean_rx_ring(adapter, rx_ring);
+ vfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+ pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
+ rx_ring->desc = NULL;
+}
+
+/**
+ * pch_gbe_request_irq - Allocate an interrupt line
+ * @adapter: Board private structure
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_request_irq(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err;
+ int flags;
+
+ flags = IRQF_SHARED;
+ adapter->have_msi = false;
+ err = pci_enable_msi(adapter->pdev);
+ pr_debug("call pci_enable_msi\n");
+ if (err) {
+ pr_debug("call pci_enable_msi - Error: %d\n", err);
+ } else {
+ flags = 0;
+ adapter->have_msi = true;
+ }
+ err = request_irq(adapter->pdev->irq, &pch_gbe_intr,
+ flags, netdev->name, netdev);
+ if (err)
+ pr_err("Unable to allocate interrupt Error: %d\n", err);
+ pr_debug("adapter->have_msi : %d flags : 0x%04x return : 0x%04x\n",
+ adapter->have_msi, flags, err);
+ return err;
+}
+
+
+static void pch_gbe_set_multi(struct net_device *netdev);
+/**
+ * pch_gbe_up - Up GbE network device
+ * @adapter: Board private structure
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+int pch_gbe_up(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
+ struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
+ int err;
+
+ /* hardware has been reset, we need to reload some things */
+ pch_gbe_set_multi(netdev);
+
+ pch_gbe_setup_tctl(adapter);
+ pch_gbe_configure_tx(adapter);
+ pch_gbe_setup_rctl(adapter);
+ pch_gbe_configure_rx(adapter);
+
+ err = pch_gbe_request_irq(adapter);
+ if (err) {
+ pr_err("Error: can't bring device up\n");
+ return err;
+ }
+ pch_gbe_alloc_tx_buffers(adapter, tx_ring);
+ pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count);
+ adapter->tx_queue_len = netdev->tx_queue_len;
+
+ mod_timer(&adapter->watchdog_timer, jiffies);
+
+ napi_enable(&adapter->napi);
+ pch_gbe_irq_enable(adapter);
+ netif_start_queue(adapter->netdev);
+
+ return 0;
+}
+
+/**
+ * pch_gbe_down - Down GbE network device
+ * @adapter: Board private structure
+ */
+void pch_gbe_down(struct pch_gbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ /* signal that we're down so the interrupt handler does not
+ * reschedule our watchdog timer */
+ napi_disable(&adapter->napi);
+ atomic_set(&adapter->irq_sem, 0);
+
+ pch_gbe_irq_disable(adapter);
+ pch_gbe_free_irq(adapter);
+
+ del_timer_sync(&adapter->watchdog_timer);
+
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ pch_gbe_reset(adapter);
+ pch_gbe_clean_tx_ring(adapter, adapter->tx_ring);
+ pch_gbe_clean_rx_ring(adapter, adapter->rx_ring);
+}
+
+/**
+ * pch_gbe_sw_init - Initialize general software structures (struct pch_gbe_adapter)
+ * @adapter: Board private structure to initialize
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_sw_init(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+
+ adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
+ hw->mac.max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+ hw->mac.min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+
+ /* Initialize the hardware-specific values */
+ if (pch_gbe_hal_setup_init_funcs(hw)) {
+ pr_err("Hardware Initialization Failure\n");
+ return -EIO;
+ }
+ if (pch_gbe_alloc_queues(adapter)) {
+ pr_err("Unable to allocate memory for queues\n");
+ return -ENOMEM;
+ }
+ spin_lock_init(&adapter->hw.miim_lock);
+ spin_lock_init(&adapter->tx_queue_lock);
+ spin_lock_init(&adapter->stats_lock);
+ spin_lock_init(&adapter->ethtool_lock);
+ atomic_set(&adapter->irq_sem, 0);
+ pch_gbe_irq_disable(adapter);
+
+ pch_gbe_init_stats(adapter);
+
+ pr_debug("rx_buffer_len : %d mac.min_frame_size : %d mac.max_frame_size : %d\n",
+ (u32) adapter->rx_buffer_len,
+ hw->mac.min_frame_size, hw->mac.max_frame_size);
+ return 0;
+}
+
+/**
+ * pch_gbe_open - Called when a network interface is made active
+ * @netdev: Network interface device structure
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_open(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ int err;
+
+ /* allocate transmit descriptors */
+ err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
+ if (err)
+ goto err_setup_tx;
+ /* allocate receive descriptors */
+ err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
+ if (err)
+ goto err_setup_rx;
+ pch_gbe_hal_power_up_phy(hw);
+ err = pch_gbe_up(adapter);
+ if (err)
+ goto err_up;
+ pr_debug("Success End\n");
+ return 0;
+
+err_up:
+ if (!adapter->wake_up_evt)
+ pch_gbe_hal_power_down_phy(hw);
+ pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
+err_setup_rx:
+ pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
+err_setup_tx:
+ pch_gbe_reset(adapter);
+ pr_err("Error End\n");
+ return err;
+}
+
+/**
+ * pch_gbe_stop - Disables a network interface
+ * @netdev: Network interface device structure
+ * Returns
+ * 0: Successfully
+ */
+static int pch_gbe_stop(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ pch_gbe_down(adapter);
+ if (!adapter->wake_up_evt)
+ pch_gbe_hal_power_down_phy(hw);
+ pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
+ pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
+ return 0;
+}
+
+/**
+ * pch_gbe_xmit_frame - Packet transmitting start
+ * @skb: Socket buffer structure
+ * @netdev: Network interface device structure
+ * Returns
+ * - NETDEV_TX_OK: Normal end
+ * - NETDEV_TX_BUSY: Error end
+ */
+static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
+ unsigned long flags;
+
+ if (unlikely(skb->len > (adapter->hw.mac.max_frame_size - 4))) {
+ pr_err("Transfer length Error: skb len: %d > max: %d\n",
+ skb->len, adapter->hw.mac.max_frame_size);
+ dev_kfree_skb_any(skb);
+ adapter->stats.tx_length_errors++;
+ return NETDEV_TX_OK;
+ }
+ if (!spin_trylock_irqsave(&tx_ring->tx_lock, flags)) {
+ /* Collision - tell upper layer to requeue */
+ return NETDEV_TX_LOCKED;
+ }
+ if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring))) {
+ netif_stop_queue(netdev);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ pr_debug("Return : BUSY next_to use : 0x%08x next_to clean : 0x%08x\n",
+ tx_ring->next_to_use, tx_ring->next_to_clean);
+ return NETDEV_TX_BUSY;
+ }
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+
+ /* CRC,ITAG no support */
+ pch_gbe_tx_queue(adapter, tx_ring, skb);
+ return NETDEV_TX_OK;
+}
+
+/**
+ * pch_gbe_get_stats - Get System Network Statistics
+ * @netdev: Network interface device structure
+ * Returns: The current stats
+ */
+static struct net_device_stats *pch_gbe_get_stats(struct net_device *netdev)
+{
+ /* only return the current stats */
+ return &netdev->stats;
+}
+
+/**
+ * pch_gbe_set_multi - Multicast and Promiscuous mode set
+ * @netdev: Network interface device structure
+ */
+static void pch_gbe_set_multi(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct netdev_hw_addr *ha;
+ u8 *mta_list;
+ u32 rctl;
+ int i;
+ int mc_count;
+
+ pr_debug("netdev->flags : 0x%08x\n", netdev->flags);
+
+ /* Check for Promiscuous and All Multicast modes */
+ rctl = ioread32(&hw->reg->RX_MODE);
+ mc_count = netdev_mc_count(netdev);
+ if ((netdev->flags & IFF_PROMISC)) {
+ rctl &= ~PCH_GBE_ADD_FIL_EN;
+ rctl &= ~PCH_GBE_MLT_FIL_EN;
+ } else if ((netdev->flags & IFF_ALLMULTI)) {
+ /* all the multicasting receive permissions */
+ rctl |= PCH_GBE_ADD_FIL_EN;
+ rctl &= ~PCH_GBE_MLT_FIL_EN;
+ } else {
+ if (mc_count >= PCH_GBE_MAR_ENTRIES) {
+ /* all the multicasting receive permissions */
+ rctl |= PCH_GBE_ADD_FIL_EN;
+ rctl &= ~PCH_GBE_MLT_FIL_EN;
+ } else {
+ rctl |= (PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN);
+ }
+ }
+ iowrite32(rctl, &hw->reg->RX_MODE);
+
+ if (mc_count >= PCH_GBE_MAR_ENTRIES)
+ return;
+ mta_list = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
+ if (!mta_list)
+ return;
+
+ /* The shared function expects a packed array of only addresses. */
+ i = 0;
+ netdev_for_each_mc_addr(ha, netdev) {
+ if (i == mc_count)
+ break;
+ memcpy(mta_list + (i++ * ETH_ALEN), &ha->addr, ETH_ALEN);
+ }
+ pch_gbe_mac_mc_addr_list_update(hw, mta_list, i, 1,
+ PCH_GBE_MAR_ENTRIES);
+ kfree(mta_list);
+
+ pr_debug("RX_MODE reg(check bit31,30 ADD,MLT) : 0x%08x netdev->mc_count : 0x%08x\n",
+ ioread32(&hw->reg->RX_MODE), mc_count);
+}
+
+/**
+ * pch_gbe_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: Network interface device structure
+ * @addr: Pointer to an address structure
+ * Returns
+ * 0: Successfully
+ * -EADDRNOTAVAIL: Failed
+ */
+static int pch_gbe_set_mac(struct net_device *netdev, void *addr)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct sockaddr *skaddr = addr;
+ int ret_val;
+
+ if (!is_valid_ether_addr(skaddr->sa_data)) {
+ ret_val = -EADDRNOTAVAIL;
+ } else {
+ memcpy(netdev->dev_addr, skaddr->sa_data, netdev->addr_len);
+ memcpy(adapter->hw.mac.addr, skaddr->sa_data, netdev->addr_len);
+ pch_gbe_mac_mar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+ ret_val = 0;
+ }
+ pr_debug("ret_val : 0x%08x\n", ret_val);
+ pr_debug("dev_addr : %pM\n", netdev->dev_addr);
+ pr_debug("mac_addr : %pM\n", adapter->hw.mac.addr);
+ pr_debug("MAC_ADR1AB reg : 0x%08x 0x%08x\n",
+ ioread32(&adapter->hw.reg->mac_adr[0].high),
+ ioread32(&adapter->hw.reg->mac_adr[0].low));
+ return ret_val;
+}
+
+/**
+ * pch_gbe_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: Network interface device structure
+ * @new_mtu: New value for maximum frame size
+ * Returns
+ * 0: Successfully
+ * -EINVAL: Failed
+ */
+static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ int max_frame;
+
+ max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
+ if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
+ (max_frame > PCH_GBE_MAX_JUMBO_FRAME_SIZE)) {
+ pr_err("Invalid MTU setting\n");
+ return -EINVAL;
+ }
+ if (max_frame <= PCH_GBE_FRAME_SIZE_2048)
+ adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
+ else if (max_frame <= PCH_GBE_FRAME_SIZE_4096)
+ adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_4096;
+ else if (max_frame <= PCH_GBE_FRAME_SIZE_8192)
+ adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_8192;
+ else
+ adapter->rx_buffer_len = PCH_GBE_MAX_JUMBO_FRAME_SIZE;
+ netdev->mtu = new_mtu;
+ adapter->hw.mac.max_frame_size = max_frame;
+
+ if (netif_running(netdev))
+ pch_gbe_reinit_locked(adapter);
+ else
+ pch_gbe_reset(adapter);
+
+ pr_debug("max_frame : %d rx_buffer_len : %d mtu : %d max_frame_size : %d\n",
+ max_frame, (u32) adapter->rx_buffer_len, netdev->mtu,
+ adapter->hw.mac.max_frame_size);
+ return 0;
+}
+
+/**
+ * pch_gbe_set_features - Reset device after features changed
+ * @netdev: Network interface device structure
+ * @features: New features
+ * Returns
+ * 0: HW state updated successfully
+ */
+static int pch_gbe_set_features(struct net_device *netdev, u32 features)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ u32 changed = features ^ netdev->features;
+
+ if (!(changed & NETIF_F_RXCSUM))
+ return 0;
+
+ if (netif_running(netdev))
+ pch_gbe_reinit_locked(adapter);
+ else
+ pch_gbe_reset(adapter);
+
+ return 0;
+}
+
+/**
+ * pch_gbe_ioctl - Controls register through a MII interface
+ * @netdev: Network interface device structure
+ * @ifr: Pointer to ifr structure
+ * @cmd: Control command
+ * Returns
+ * 0: Successfully
+ * Negative value: Failed
+ */
+static int pch_gbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ pr_debug("cmd : 0x%04x\n", cmd);
+
+ return generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
+}
+
+/**
+ * pch_gbe_tx_timeout - Respond to a Tx Hang
+ * @netdev: Network interface device structure
+ */
+static void pch_gbe_tx_timeout(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ /* Do the reset outside of interrupt context */
+ adapter->stats.tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+}
+
+/**
+ * pch_gbe_napi_poll - NAPI receive and transfer polling callback
+ * @napi: Pointer of polling device struct
+ * @budget: The maximum number of a packet
+ * Returns
+ * false: Exit the polling mode
+ * true: Continue the polling mode
+ */
+static int pch_gbe_napi_poll(struct napi_struct *napi, int budget)
+{
+ struct pch_gbe_adapter *adapter =
+ container_of(napi, struct pch_gbe_adapter, napi);
+ struct net_device *netdev = adapter->netdev;
+ int work_done = 0;
+ bool poll_end_flag = false;
+ bool cleaned = false;
+
+ pr_debug("budget : %d\n", budget);
+
+ /* Keep link state information with original netdev */
+ if (!netif_carrier_ok(netdev)) {
+ poll_end_flag = true;
+ } else {
+ cleaned = pch_gbe_clean_tx(adapter, adapter->tx_ring);
+ pch_gbe_clean_rx(adapter, adapter->rx_ring, &work_done, budget);
+
+ if (cleaned)
+ work_done = budget;
+ /* If no Tx and not enough Rx work done,
+ * exit the polling mode
+ */
+ if ((work_done < budget) || !netif_running(netdev))
+ poll_end_flag = true;
+ }
+
+ if (poll_end_flag) {
+ napi_complete(napi);
+ pch_gbe_irq_enable(adapter);
+ }
+
+ pr_debug("poll_end_flag : %d work_done : %d budget : %d\n",
+ poll_end_flag, work_done, budget);
+
+ return work_done;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/**
+ * pch_gbe_netpoll - Used by things like netconsole to send skbs
+ * @netdev: Network interface device structure
+ */
+static void pch_gbe_netpoll(struct net_device *netdev)
+{
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ disable_irq(adapter->pdev->irq);
+ pch_gbe_intr(adapter->pdev->irq, netdev);
+ enable_irq(adapter->pdev->irq);
+}
+#endif
+
+static const struct net_device_ops pch_gbe_netdev_ops = {
+ .ndo_open = pch_gbe_open,
+ .ndo_stop = pch_gbe_stop,
+ .ndo_start_xmit = pch_gbe_xmit_frame,
+ .ndo_get_stats = pch_gbe_get_stats,
+ .ndo_set_mac_address = pch_gbe_set_mac,
+ .ndo_tx_timeout = pch_gbe_tx_timeout,
+ .ndo_change_mtu = pch_gbe_change_mtu,
+ .ndo_set_features = pch_gbe_set_features,
+ .ndo_do_ioctl = pch_gbe_ioctl,
+ .ndo_set_multicast_list = &pch_gbe_set_multi,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = pch_gbe_netpoll,
+#endif
+};
+
+static pci_ers_result_t pch_gbe_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ netif_device_detach(netdev);
+ if (netif_running(netdev))
+ pch_gbe_down(adapter);
+ pci_disable_device(pdev);
+ /* Request a slot slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t pch_gbe_io_slot_reset(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+
+ if (pci_enable_device(pdev)) {
+ pr_err("Cannot re-enable PCI device after reset\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+ pci_set_master(pdev);
+ pci_enable_wake(pdev, PCI_D0, 0);
+ pch_gbe_hal_power_up_phy(hw);
+ pch_gbe_reset(adapter);
+ /* Clear wake up status */
+ pch_gbe_mac_set_wol_event(hw, 0);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void pch_gbe_io_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ if (netif_running(netdev)) {
+ if (pch_gbe_up(adapter)) {
+ pr_debug("can't bring device back up after reset\n");
+ return;
+ }
+ }
+ netif_device_attach(netdev);
+}
+
+static int __pch_gbe_suspend(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 wufc = adapter->wake_up_evt;
+ int retval = 0;
+
+ netif_device_detach(netdev);
+ if (netif_running(netdev))
+ pch_gbe_down(adapter);
+ if (wufc) {
+ pch_gbe_set_multi(netdev);
+ pch_gbe_setup_rctl(adapter);
+ pch_gbe_configure_rx(adapter);
+ pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
+ hw->mac.link_duplex);
+ pch_gbe_set_mode(adapter, hw->mac.link_speed,
+ hw->mac.link_duplex);
+ pch_gbe_mac_set_wol_event(hw, wufc);
+ pci_disable_device(pdev);
+ } else {
+ pch_gbe_hal_power_down_phy(hw);
+ pch_gbe_mac_set_wol_event(hw, wufc);
+ pci_disable_device(pdev);
+ }
+ return retval;
+}
+
+#ifdef CONFIG_PM
+static int pch_gbe_suspend(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+
+ return __pch_gbe_suspend(pdev);
+}
+
+static int pch_gbe_resume(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+ struct pch_gbe_hw *hw = &adapter->hw;
+ u32 err;
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ pr_err("Cannot enable PCI device from suspend\n");
+ return err;
+ }
+ pci_set_master(pdev);
+ pch_gbe_hal_power_up_phy(hw);
+ pch_gbe_reset(adapter);
+ /* Clear wake on lan control and status */
+ pch_gbe_mac_set_wol_event(hw, 0);
+
+ if (netif_running(netdev))
+ pch_gbe_up(adapter);
+ netif_device_attach(netdev);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static void pch_gbe_shutdown(struct pci_dev *pdev)
+{
+ __pch_gbe_suspend(pdev);
+ if (system_state == SYSTEM_POWER_OFF) {
+ pci_wake_from_d3(pdev, true);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
+}
+
+static void pch_gbe_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct pch_gbe_adapter *adapter = netdev_priv(netdev);
+
+ cancel_work_sync(&adapter->reset_task);
+ unregister_netdev(netdev);
+
+ pch_gbe_hal_phy_hw_reset(&adapter->hw);
+
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+
+ iounmap(adapter->hw.reg);
+ pci_release_regions(pdev);
+ free_netdev(netdev);
+ pci_disable_device(pdev);
+}
+
+static int pch_gbe_probe(struct pci_dev *pdev,
+ const struct pci_device_id *pci_id)
+{
+ struct net_device *netdev;
+ struct pch_gbe_adapter *adapter;
+ int ret;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (ret) {
+ ret = pci_set_consistent_dma_mask(pdev,
+ DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(&pdev->dev, "ERR: No usable DMA "
+ "configuration, aborting\n");
+ goto err_disable_device;
+ }
+ }
+ }
+
+ ret = pci_request_regions(pdev, KBUILD_MODNAME);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "ERR: Can't reserve PCI I/O and memory resources\n");
+ goto err_disable_device;
+ }
+ pci_set_master(pdev);
+
+ netdev = alloc_etherdev((int)sizeof(struct pch_gbe_adapter));
+ if (!netdev) {
+ ret = -ENOMEM;
+ dev_err(&pdev->dev,
+ "ERR: Can't allocate and set up an Ethernet device\n");
+ goto err_release_pci;
+ }
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ pci_set_drvdata(pdev, netdev);
+ adapter = netdev_priv(netdev);
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+ adapter->hw.back = adapter;
+ adapter->hw.reg = pci_iomap(pdev, PCH_GBE_PCI_BAR, 0);
+ if (!adapter->hw.reg) {
+ ret = -EIO;
+ dev_err(&pdev->dev, "Can't ioremap\n");
+ goto err_free_netdev;
+ }
+
+ netdev->netdev_ops = &pch_gbe_netdev_ops;
+ netdev->watchdog_timeo = PCH_GBE_WATCHDOG_PERIOD;
+ netif_napi_add(netdev, &adapter->napi,
+ pch_gbe_napi_poll, PCH_GBE_RX_WEIGHT);
+ netdev->hw_features = NETIF_F_RXCSUM |
+ NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+ netdev->features = netdev->hw_features;
+ pch_gbe_set_ethtool_ops(netdev);
+
+ pch_gbe_mac_load_mac_addr(&adapter->hw);
+ pch_gbe_mac_reset_hw(&adapter->hw);
+
+ /* setup the private structure */
+ ret = pch_gbe_sw_init(adapter);
+ if (ret)
+ goto err_iounmap;
+
+ /* Initialize PHY */
+ ret = pch_gbe_init_phy(adapter);
+ if (ret) {
+ dev_err(&pdev->dev, "PHY initialize error\n");
+ goto err_free_adapter;
+ }
+ pch_gbe_hal_get_bus_info(&adapter->hw);
+
+ /* Read the MAC address. and store to the private data */
+ ret = pch_gbe_hal_read_mac_addr(&adapter->hw);
+ if (ret) {
+ dev_err(&pdev->dev, "MAC address Read Error\n");
+ goto err_free_adapter;
+ }
+
+ memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
+ if (!is_valid_ether_addr(netdev->dev_addr)) {
+ dev_err(&pdev->dev, "Invalid MAC Address\n");
+ ret = -EIO;
+ goto err_free_adapter;
+ }
+ setup_timer(&adapter->watchdog_timer, pch_gbe_watchdog,
+ (unsigned long)adapter);
+
+ INIT_WORK(&adapter->reset_task, pch_gbe_reset_task);
+
+ pch_gbe_check_options(adapter);
+
+ /* initialize the wol settings based on the eeprom settings */
+ adapter->wake_up_evt = PCH_GBE_WL_INIT_SETTING;
+ dev_info(&pdev->dev, "MAC address : %pM\n", netdev->dev_addr);
+
+ /* reset the hardware with the new settings */
+ pch_gbe_reset(adapter);
+
+ ret = register_netdev(netdev);
+ if (ret)
+ goto err_free_adapter;
+ /* tell the stack to leave us alone until pch_gbe_open() is called */
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ dev_dbg(&pdev->dev, "OKIsemi(R) PCH Network Connection\n");
+
+ device_set_wakeup_enable(&pdev->dev, 1);
+ return 0;
+
+err_free_adapter:
+ pch_gbe_hal_phy_hw_reset(&adapter->hw);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+err_iounmap:
+ iounmap(adapter->hw.reg);
+err_free_netdev:
+ free_netdev(netdev);
+err_release_pci:
+ pci_release_regions(pdev);
+err_disable_device:
+ pci_disable_device(pdev);
+ return ret;
+}
+
+static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = {
+ {.vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_IOH1_GBE,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
+ .class_mask = (0xFFFF00)
+ },
+ {.vendor = PCI_VENDOR_ID_ROHM,
+ .device = PCI_DEVICE_ID_ROHM_ML7223_GBE,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
+ .class_mask = (0xFFFF00)
+ },
+ /* required last entry */
+ {0}
+};
+
+#ifdef CONFIG_PM
+static const struct dev_pm_ops pch_gbe_pm_ops = {
+ .suspend = pch_gbe_suspend,
+ .resume = pch_gbe_resume,
+ .freeze = pch_gbe_suspend,
+ .thaw = pch_gbe_resume,
+ .poweroff = pch_gbe_suspend,
+ .restore = pch_gbe_resume,
+};
+#endif
+
+static struct pci_error_handlers pch_gbe_err_handler = {
+ .error_detected = pch_gbe_io_error_detected,
+ .slot_reset = pch_gbe_io_slot_reset,
+ .resume = pch_gbe_io_resume
+};
+
+static struct pci_driver pch_gbe_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = pch_gbe_pcidev_id,
+ .probe = pch_gbe_probe,
+ .remove = pch_gbe_remove,
+#ifdef CONFIG_PM
+ .driver.pm = &pch_gbe_pm_ops,
+#endif
+ .shutdown = pch_gbe_shutdown,
+ .err_handler = &pch_gbe_err_handler
+};
+
+
+static int __init pch_gbe_init_module(void)
+{
+ int ret;
+
+ ret = pci_register_driver(&pch_gbe_driver);
+ if (copybreak != PCH_GBE_COPYBREAK_DEFAULT) {
+ if (copybreak == 0) {
+ pr_info("copybreak disabled\n");
+ } else {
+ pr_info("copybreak enabled for packets <= %u bytes\n",
+ copybreak);
+ }
+ }
+ return ret;
+}
+
+static void __exit pch_gbe_exit_module(void)
+{
+ pci_unregister_driver(&pch_gbe_driver);
+}
+
+module_init(pch_gbe_init_module);
+module_exit(pch_gbe_exit_module);
+
+MODULE_DESCRIPTION("EG20T PCH Gigabit ethernet Driver");
+MODULE_AUTHOR("OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, pch_gbe_pcidev_id);
+
+module_param(copybreak, uint, 0644);
+MODULE_PARM_DESC(copybreak,
+ "Maximum size of packet that is copied to a new buffer on receive");
+
+/* pch_gbe_main.c */
--- /dev/null
+/*
+ * 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.
+ */
+
+#include "pch_gbe.h"
+
+#define OPTION_UNSET -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED 1
+
+/**
+ * TxDescriptors - Transmit Descriptor Count
+ * @Valid Range: PCH_GBE_MIN_TXD - PCH_GBE_MAX_TXD
+ * @Default Value: PCH_GBE_DEFAULT_TXD
+ */
+static int TxDescriptors = OPTION_UNSET;
+module_param(TxDescriptors, int, 0);
+MODULE_PARM_DESC(TxDescriptors, "Number of transmit descriptors");
+
+/**
+ * RxDescriptors -Receive Descriptor Count
+ * @Valid Range: PCH_GBE_MIN_RXD - PCH_GBE_MAX_RXD
+ * @Default Value: PCH_GBE_DEFAULT_RXD
+ */
+static int RxDescriptors = OPTION_UNSET;
+module_param(RxDescriptors, int, 0);
+MODULE_PARM_DESC(RxDescriptors, "Number of receive descriptors");
+
+/**
+ * Speed - User Specified Speed Override
+ * @Valid Range: 0, 10, 100, 1000
+ * - 0: auto-negotiate at all supported speeds
+ * - 10: only link at 10 Mbps
+ * - 100: only link at 100 Mbps
+ * - 1000: only link at 1000 Mbps
+ * @Default Value: 0
+ */
+static int Speed = OPTION_UNSET;
+module_param(Speed, int, 0);
+MODULE_PARM_DESC(Speed, "Speed setting");
+
+/**
+ * Duplex - User Specified Duplex Override
+ * @Valid Range: 0-2
+ * - 0: auto-negotiate for duplex
+ * - 1: only link at half duplex
+ * - 2: only link at full duplex
+ * @Default Value: 0
+ */
+static int Duplex = OPTION_UNSET;
+module_param(Duplex, int, 0);
+MODULE_PARM_DESC(Duplex, "Duplex setting");
+
+#define HALF_DUPLEX 1
+#define FULL_DUPLEX 2
+
+/**
+ * AutoNeg - Auto-negotiation Advertisement Override
+ * @Valid Range: 0x01-0x0F, 0x20-0x2F
+ *
+ * The AutoNeg value is a bit mask describing which speed and duplex
+ * combinations should be advertised during auto-negotiation.
+ * The supported speed and duplex modes are listed below
+ *
+ * Bit 7 6 5 4 3 2 1 0
+ * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
+ * Duplex Full Full Half Full Half
+ *
+ * @Default Value: 0x2F (copper)
+ */
+static int AutoNeg = OPTION_UNSET;
+module_param(AutoNeg, int, 0);
+MODULE_PARM_DESC(AutoNeg, "Advertised auto-negotiation setting");
+
+#define PHY_ADVERTISE_10_HALF 0x0001
+#define PHY_ADVERTISE_10_FULL 0x0002
+#define PHY_ADVERTISE_100_HALF 0x0004
+#define PHY_ADVERTISE_100_FULL 0x0008
+#define PHY_ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
+#define PHY_ADVERTISE_1000_FULL 0x0020
+#define PCH_AUTONEG_ADVERTISE_DEFAULT 0x2F
+
+/**
+ * FlowControl - User Specified Flow Control Override
+ * @Valid Range: 0-3
+ * - 0: No Flow Control
+ * - 1: Rx only, respond to PAUSE frames but do not generate them
+ * - 2: Tx only, generate PAUSE frames but ignore them on receive
+ * - 3: Full Flow Control Support
+ * @Default Value: Read flow control settings from the EEPROM
+ */
+static int FlowControl = OPTION_UNSET;
+module_param(FlowControl, int, 0);
+MODULE_PARM_DESC(FlowControl, "Flow Control setting");
+
+/*
+ * XsumRX - Receive Checksum Offload Enable/Disable
+ * @Valid Range: 0, 1
+ * - 0: disables all checksum offload
+ * - 1: enables receive IP/TCP/UDP checksum offload
+ * @Default Value: PCH_GBE_DEFAULT_RX_CSUM
+ */
+static int XsumRX = OPTION_UNSET;
+module_param(XsumRX, int, 0);
+MODULE_PARM_DESC(XsumRX, "Disable or enable Receive Checksum offload");
+
+#define PCH_GBE_DEFAULT_RX_CSUM true /* trueorfalse */
+
+/*
+ * XsumTX - Transmit Checksum Offload Enable/Disable
+ * @Valid Range: 0, 1
+ * - 0: disables all checksum offload
+ * - 1: enables transmit IP/TCP/UDP checksum offload
+ * @Default Value: PCH_GBE_DEFAULT_TX_CSUM
+ */
+static int XsumTX = OPTION_UNSET;
+module_param(XsumTX, int, 0);
+MODULE_PARM_DESC(XsumTX, "Disable or enable Transmit Checksum offload");
+
+#define PCH_GBE_DEFAULT_TX_CSUM true /* trueorfalse */
+
+/**
+ * pch_gbe_option - Force the MAC's flow control settings
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+struct pch_gbe_option {
+ enum { enable_option, range_option, list_option } type;
+ char *name;
+ char *err;
+ int def;
+ union {
+ struct { /* range_option info */
+ int min;
+ int max;
+ } r;
+ struct { /* list_option info */
+ int nr;
+ const struct pch_gbe_opt_list { int i; char *str; } *p;
+ } l;
+ } arg;
+};
+
+static const struct pch_gbe_opt_list speed_list[] = {
+ { 0, "" },
+ { SPEED_10, "" },
+ { SPEED_100, "" },
+ { SPEED_1000, "" }
+};
+
+static const struct pch_gbe_opt_list dplx_list[] = {
+ { 0, "" },
+ { HALF_DUPLEX, "" },
+ { FULL_DUPLEX, "" }
+};
+
+static const struct pch_gbe_opt_list an_list[] =
+ #define AA "AutoNeg advertising "
+ {{ 0x01, AA "10/HD" },
+ { 0x02, AA "10/FD" },
+ { 0x03, AA "10/FD, 10/HD" },
+ { 0x04, AA "100/HD" },
+ { 0x05, AA "100/HD, 10/HD" },
+ { 0x06, AA "100/HD, 10/FD" },
+ { 0x07, AA "100/HD, 10/FD, 10/HD" },
+ { 0x08, AA "100/FD" },
+ { 0x09, AA "100/FD, 10/HD" },
+ { 0x0a, AA "100/FD, 10/FD" },
+ { 0x0b, AA "100/FD, 10/FD, 10/HD" },
+ { 0x0c, AA "100/FD, 100/HD" },
+ { 0x0d, AA "100/FD, 100/HD, 10/HD" },
+ { 0x0e, AA "100/FD, 100/HD, 10/FD" },
+ { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
+ { 0x20, AA "1000/FD" },
+ { 0x21, AA "1000/FD, 10/HD" },
+ { 0x22, AA "1000/FD, 10/FD" },
+ { 0x23, AA "1000/FD, 10/FD, 10/HD" },
+ { 0x24, AA "1000/FD, 100/HD" },
+ { 0x25, AA "1000/FD, 100/HD, 10/HD" },
+ { 0x26, AA "1000/FD, 100/HD, 10/FD" },
+ { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
+ { 0x28, AA "1000/FD, 100/FD" },
+ { 0x29, AA "1000/FD, 100/FD, 10/HD" },
+ { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
+ { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
+ { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
+ { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
+ { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
+ { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }
+};
+
+static const struct pch_gbe_opt_list fc_list[] = {
+ { PCH_GBE_FC_NONE, "Flow Control Disabled" },
+ { PCH_GBE_FC_RX_PAUSE, "Flow Control Receive Only" },
+ { PCH_GBE_FC_TX_PAUSE, "Flow Control Transmit Only" },
+ { PCH_GBE_FC_FULL, "Flow Control Enabled" }
+};
+
+/**
+ * pch_gbe_validate_option - Validate option
+ * @value: value
+ * @opt: option
+ * @adapter: Board private structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+static int pch_gbe_validate_option(int *value,
+ const struct pch_gbe_option *opt,
+ struct pch_gbe_adapter *adapter)
+{
+ if (*value == OPTION_UNSET) {
+ *value = opt->def;
+ return 0;
+ }
+
+ switch (opt->type) {
+ case enable_option:
+ switch (*value) {
+ case OPTION_ENABLED:
+ pr_debug("%s Enabled\n", opt->name);
+ return 0;
+ case OPTION_DISABLED:
+ pr_debug("%s Disabled\n", opt->name);
+ return 0;
+ }
+ break;
+ case range_option:
+ if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+ pr_debug("%s set to %i\n", opt->name, *value);
+ return 0;
+ }
+ break;
+ case list_option: {
+ int i;
+ const struct pch_gbe_opt_list *ent;
+
+ for (i = 0; i < opt->arg.l.nr; i++) {
+ ent = &opt->arg.l.p[i];
+ if (*value == ent->i) {
+ if (ent->str[0] != '\0')
+ pr_debug("%s\n", ent->str);
+ return 0;
+ }
+ }
+ }
+ break;
+ default:
+ BUG();
+ }
+
+ pr_debug("Invalid %s value specified (%i) %s\n",
+ opt->name, *value, opt->err);
+ *value = opt->def;
+ return -1;
+}
+
+/**
+ * pch_gbe_check_copper_options - Range Checking for Link Options, Copper Version
+ * @adapter: Board private structure
+ */
+static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ int speed, dplx;
+
+ { /* Speed */
+ static const struct pch_gbe_option opt = {
+ .type = list_option,
+ .name = "Speed",
+ .err = "parameter ignored",
+ .def = 0,
+ .arg = { .l = { .nr = (int)ARRAY_SIZE(speed_list),
+ .p = speed_list } }
+ };
+ speed = Speed;
+ pch_gbe_validate_option(&speed, &opt, adapter);
+ }
+ { /* Duplex */
+ static const struct pch_gbe_option opt = {
+ .type = list_option,
+ .name = "Duplex",
+ .err = "parameter ignored",
+ .def = 0,
+ .arg = { .l = { .nr = (int)ARRAY_SIZE(dplx_list),
+ .p = dplx_list } }
+ };
+ dplx = Duplex;
+ pch_gbe_validate_option(&dplx, &opt, adapter);
+ }
+
+ { /* Autoneg */
+ static const struct pch_gbe_option opt = {
+ .type = list_option,
+ .name = "AutoNeg",
+ .err = "parameter ignored",
+ .def = PCH_AUTONEG_ADVERTISE_DEFAULT,
+ .arg = { .l = { .nr = (int)ARRAY_SIZE(an_list),
+ .p = an_list} }
+ };
+ if (speed || dplx) {
+ pr_debug("AutoNeg specified along with Speed or Duplex, AutoNeg parameter ignored\n");
+ hw->phy.autoneg_advertised = opt.def;
+ } else {
+ hw->phy.autoneg_advertised = AutoNeg;
+ pch_gbe_validate_option(
+ (int *)(&hw->phy.autoneg_advertised),
+ &opt, adapter);
+ }
+ }
+
+ switch (speed + dplx) {
+ case 0:
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ if ((speed || dplx))
+ pr_debug("Speed and duplex autonegotiation enabled\n");
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case HALF_DUPLEX:
+ pr_debug("Half Duplex specified without Speed\n");
+ pr_debug("Using Autonegotiation at Half Duplex only\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
+ PHY_ADVERTISE_100_HALF;
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case FULL_DUPLEX:
+ pr_debug("Full Duplex specified without Speed\n");
+ pr_debug("Using Autonegotiation at Full Duplex only\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ hw->phy.autoneg_advertised = PHY_ADVERTISE_10_FULL |
+ PHY_ADVERTISE_100_FULL |
+ PHY_ADVERTISE_1000_FULL;
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_FULL;
+ break;
+ case SPEED_10:
+ pr_debug("10 Mbps Speed specified without Duplex\n");
+ pr_debug("Using Autonegotiation at 10 Mbps only\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
+ PHY_ADVERTISE_10_FULL;
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case SPEED_10 + HALF_DUPLEX:
+ pr_debug("Forcing to 10 Mbps Half Duplex\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 0;
+ hw->phy.autoneg_advertised = 0;
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case SPEED_10 + FULL_DUPLEX:
+ pr_debug("Forcing to 10 Mbps Full Duplex\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 0;
+ hw->phy.autoneg_advertised = 0;
+ hw->mac.link_speed = SPEED_10;
+ hw->mac.link_duplex = DUPLEX_FULL;
+ break;
+ case SPEED_100:
+ pr_debug("100 Mbps Speed specified without Duplex\n");
+ pr_debug("Using Autonegotiation at 100 Mbps only\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ hw->phy.autoneg_advertised = PHY_ADVERTISE_100_HALF |
+ PHY_ADVERTISE_100_FULL;
+ hw->mac.link_speed = SPEED_100;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case SPEED_100 + HALF_DUPLEX:
+ pr_debug("Forcing to 100 Mbps Half Duplex\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 0;
+ hw->phy.autoneg_advertised = 0;
+ hw->mac.link_speed = SPEED_100;
+ hw->mac.link_duplex = DUPLEX_HALF;
+ break;
+ case SPEED_100 + FULL_DUPLEX:
+ pr_debug("Forcing to 100 Mbps Full Duplex\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 0;
+ hw->phy.autoneg_advertised = 0;
+ hw->mac.link_speed = SPEED_100;
+ hw->mac.link_duplex = DUPLEX_FULL;
+ break;
+ case SPEED_1000:
+ pr_debug("1000 Mbps Speed specified without Duplex\n");
+ goto full_duplex_only;
+ case SPEED_1000 + HALF_DUPLEX:
+ pr_debug("Half Duplex is not supported at 1000 Mbps\n");
+ /* fall through */
+ case SPEED_1000 + FULL_DUPLEX:
+full_duplex_only:
+ pr_debug("Using Autonegotiation at 1000 Mbps Full Duplex only\n");
+ hw->mac.autoneg = hw->mac.fc_autoneg = 1;
+ hw->phy.autoneg_advertised = PHY_ADVERTISE_1000_FULL;
+ hw->mac.link_speed = SPEED_1000;
+ hw->mac.link_duplex = DUPLEX_FULL;
+ break;
+ default:
+ BUG();
+ }
+}
+
+/**
+ * pch_gbe_check_options - Range Checking for Command Line Parameters
+ * @adapter: Board private structure
+ */
+void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
+{
+ struct pch_gbe_hw *hw = &adapter->hw;
+ struct net_device *dev = adapter->netdev;
+ int val;
+
+ { /* Transmit Descriptor Count */
+ static const struct pch_gbe_option opt = {
+ .type = range_option,
+ .name = "Transmit Descriptors",
+ .err = "using default of "
+ __MODULE_STRING(PCH_GBE_DEFAULT_TXD),
+ .def = PCH_GBE_DEFAULT_TXD,
+ .arg = { .r = { .min = PCH_GBE_MIN_TXD,
+ .max = PCH_GBE_MAX_TXD } }
+ };
+ struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
+ tx_ring->count = TxDescriptors;
+ pch_gbe_validate_option(&tx_ring->count, &opt, adapter);
+ tx_ring->count = roundup(tx_ring->count,
+ PCH_GBE_TX_DESC_MULTIPLE);
+ }
+ { /* Receive Descriptor Count */
+ static const struct pch_gbe_option opt = {
+ .type = range_option,
+ .name = "Receive Descriptors",
+ .err = "using default of "
+ __MODULE_STRING(PCH_GBE_DEFAULT_RXD),
+ .def = PCH_GBE_DEFAULT_RXD,
+ .arg = { .r = { .min = PCH_GBE_MIN_RXD,
+ .max = PCH_GBE_MAX_RXD } }
+ };
+ struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
+ rx_ring->count = RxDescriptors;
+ pch_gbe_validate_option(&rx_ring->count, &opt, adapter);
+ rx_ring->count = roundup(rx_ring->count,
+ PCH_GBE_RX_DESC_MULTIPLE);
+ }
+ { /* Checksum Offload Enable/Disable */
+ static const struct pch_gbe_option opt = {
+ .type = enable_option,
+ .name = "Checksum Offload",
+ .err = "defaulting to Enabled",
+ .def = PCH_GBE_DEFAULT_RX_CSUM
+ };
+ val = XsumRX;
+ pch_gbe_validate_option(&val, &opt, adapter);
+ if (!val)
+ dev->features &= ~NETIF_F_RXCSUM;
+ }
+ { /* Checksum Offload Enable/Disable */
+ static const struct pch_gbe_option opt = {
+ .type = enable_option,
+ .name = "Checksum Offload",
+ .err = "defaulting to Enabled",
+ .def = PCH_GBE_DEFAULT_TX_CSUM
+ };
+ val = XsumTX;
+ pch_gbe_validate_option(&val, &opt, adapter);
+ if (!val)
+ dev->features &= ~NETIF_F_ALL_CSUM;
+ }
+ { /* Flow Control */
+ static const struct pch_gbe_option opt = {
+ .type = list_option,
+ .name = "Flow Control",
+ .err = "reading default settings from EEPROM",
+ .def = PCH_GBE_FC_DEFAULT,
+ .arg = { .l = { .nr = (int)ARRAY_SIZE(fc_list),
+ .p = fc_list } }
+ };
+ hw->mac.fc = FlowControl;
+ pch_gbe_validate_option((int *)(&hw->mac.fc),
+ &opt, adapter);
+ }
+
+ pch_gbe_check_copper_options(adapter);
+}
--- /dev/null
+/*
+ * 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.
+ */
+
+#include "pch_gbe.h"
+#include "pch_gbe_phy.h"
+
+#define PHY_MAX_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */
+
+/* PHY 1000 MII Register/Bit Definitions */
+/* PHY Registers defined by IEEE */
+#define PHY_CONTROL 0x00 /* Control Register */
+#define PHY_STATUS 0x01 /* Status Regiser */
+#define PHY_ID1 0x02 /* Phy Id Register (word 1) */
+#define PHY_ID2 0x03 /* Phy Id Register (word 2) */
+#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */
+#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */
+#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Register */
+#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */
+#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */
+#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Register */
+#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Register */
+#define PHY_EXT_STATUS 0x0F /* Extended Status Register */
+#define PHY_PHYSP_CONTROL 0x10 /* PHY Specific Control Register */
+#define PHY_EXT_PHYSP_CONTROL 0x14 /* Extended PHY Specific Control Register */
+#define PHY_LED_CONTROL 0x18 /* LED Control Register */
+#define PHY_EXT_PHYSP_STATUS 0x1B /* Extended PHY Specific Status Register */
+
+/* PHY Control Register */
+#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
+#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
+#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
+#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */
+#define MII_CR_POWER_DOWN 0x0800 /* Power down */
+#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
+#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
+#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
+#define MII_CR_SPEED_1000 0x0040
+#define MII_CR_SPEED_100 0x2000
+#define MII_CR_SPEED_10 0x0000
+
+/* PHY Status Register */
+#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
+#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
+#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
+#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
+#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
+#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
+#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
+#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
+#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
+#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
+#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
+#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
+#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
+#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
+#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
+
+/* Phy Id Register (word 2) */
+#define PHY_REVISION_MASK 0x000F
+
+/* PHY Specific Control Register */
+#define PHYSP_CTRL_ASSERT_CRS_TX 0x0800
+
+
+/* Default value of PHY register */
+#define PHY_CONTROL_DEFAULT 0x1140 /* Control Register */
+#define PHY_AUTONEG_ADV_DEFAULT 0x01e0 /* Autoneg Advertisement */
+#define PHY_NEXT_PAGE_TX_DEFAULT 0x2001 /* Next Page TX */
+#define PHY_1000T_CTRL_DEFAULT 0x0300 /* 1000Base-T Control Register */
+#define PHY_PHYSP_CONTROL_DEFAULT 0x01EE /* PHY Specific Control Register */
+
+/**
+ * pch_gbe_phy_get_id - Retrieve the PHY ID and revision
+ * @hw: Pointer to the HW structure
+ * Returns
+ * 0: Successful.
+ * Negative value: Failed.
+ */
+s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw)
+{
+ struct pch_gbe_phy_info *phy = &hw->phy;
+ s32 ret;
+ u16 phy_id1;
+ u16 phy_id2;
+
+ ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID1, &phy_id1);
+ if (ret)
+ return ret;
+ ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID2, &phy_id2);
+ if (ret)
+ return ret;
+ /*
+ * PHY_ID1: [bit15-0:ID(21-6)]
+ * PHY_ID2: [bit15-10:ID(5-0)][bit9-4:Model][bit3-0:revision]
+ */
+ phy->id = (u32)phy_id1;
+ phy->id = ((phy->id << 6) | ((phy_id2 & 0xFC00) >> 10));
+ phy->revision = (u32) (phy_id2 & 0x000F);
+ pr_debug("phy->id : 0x%08x phy->revision : 0x%08x\n",
+ phy->id, phy->revision);
+ return 0;
+}
+
+/**
+ * pch_gbe_phy_read_reg_miic - Read MII control register
+ * @hw: Pointer to the HW structure
+ * @offset: Register offset to be read
+ * @data: Pointer to the read data
+ * Returns
+ * 0: Successful.
+ * -EINVAL: Invalid argument.
+ */
+s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data)
+{
+ struct pch_gbe_phy_info *phy = &hw->phy;
+
+ if (offset > PHY_MAX_REG_ADDRESS) {
+ pr_err("PHY Address %d is out of range\n", offset);
+ return -EINVAL;
+ }
+ *data = pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_READ,
+ offset, (u16)0);
+ return 0;
+}
+
+/**
+ * pch_gbe_phy_write_reg_miic - Write MII control register
+ * @hw: Pointer to the HW structure
+ * @offset: Register offset to be read
+ * @data: data to write to register at offset
+ * Returns
+ * 0: Successful.
+ * -EINVAL: Invalid argument.
+ */
+s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data)
+{
+ struct pch_gbe_phy_info *phy = &hw->phy;
+
+ if (offset > PHY_MAX_REG_ADDRESS) {
+ pr_err("PHY Address %d is out of range\n", offset);
+ return -EINVAL;
+ }
+ pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_WRITE,
+ offset, data);
+ return 0;
+}
+
+/**
+ * pch_gbe_phy_sw_reset - PHY software reset
+ * @hw: Pointer to the HW structure
+ */
+void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw)
+{
+ u16 phy_ctrl;
+
+ pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &phy_ctrl);
+ phy_ctrl |= MII_CR_RESET;
+ pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, phy_ctrl);
+ udelay(1);
+}
+
+/**
+ * pch_gbe_phy_hw_reset - PHY hardware reset
+ * @hw: Pointer to the HW structure
+ */
+void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw)
+{
+ pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, PHY_CONTROL_DEFAULT);
+ pch_gbe_phy_write_reg_miic(hw, PHY_AUTONEG_ADV,
+ PHY_AUTONEG_ADV_DEFAULT);
+ pch_gbe_phy_write_reg_miic(hw, PHY_NEXT_PAGE_TX,
+ PHY_NEXT_PAGE_TX_DEFAULT);
+ pch_gbe_phy_write_reg_miic(hw, PHY_1000T_CTRL, PHY_1000T_CTRL_DEFAULT);
+ pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL,
+ PHY_PHYSP_CONTROL_DEFAULT);
+}
+
+/**
+ * pch_gbe_phy_power_up - restore link in case the phy was powered down
+ * @hw: Pointer to the HW structure
+ */
+void pch_gbe_phy_power_up(struct pch_gbe_hw *hw)
+{
+ u16 mii_reg;
+
+ mii_reg = 0;
+ /* Just clear the power down bit to wake the phy back up */
+ /* according to the manual, the phy will retain its
+ * settings across a power-down/up cycle */
+ pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
+ mii_reg &= ~MII_CR_POWER_DOWN;
+ pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
+}
+
+/**
+ * pch_gbe_phy_power_down - Power down PHY
+ * @hw: Pointer to the HW structure
+ */
+void pch_gbe_phy_power_down(struct pch_gbe_hw *hw)
+{
+ u16 mii_reg;
+
+ mii_reg = 0;
+ /* Power down the PHY so no link is implied when interface is down *
+ * The PHY cannot be powered down if any of the following is TRUE *
+ * (a) WoL is enabled
+ * (b) AMT is active
+ */
+ pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
+ mii_reg |= MII_CR_POWER_DOWN;
+ pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
+ mdelay(1);
+}
+
+/**
+ * pch_gbe_phy_set_rgmii - RGMII interface setting
+ * @hw: Pointer to the HW structure
+ */
+inline void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
+{
+ pch_gbe_phy_sw_reset(hw);
+}
+
+/**
+ * pch_gbe_phy_init_setting - PHY initial setting
+ * @hw: Pointer to the HW structure
+ */
+void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
+{
+ struct pch_gbe_adapter *adapter;
+ struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
+ int ret;
+ u16 mii_reg;
+
+ adapter = container_of(hw, struct pch_gbe_adapter, hw);
+ ret = mii_ethtool_gset(&adapter->mii, &cmd);
+ if (ret)
+ pr_err("Error: mii_ethtool_gset\n");
+
+ ethtool_cmd_speed_set(&cmd, hw->mac.link_speed);
+ cmd.duplex = hw->mac.link_duplex;
+ cmd.advertising = hw->phy.autoneg_advertised;
+ cmd.autoneg = hw->mac.autoneg;
+ pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);
+ ret = mii_ethtool_sset(&adapter->mii, &cmd);
+ if (ret)
+ pr_err("Error: mii_ethtool_sset\n");
+
+ pch_gbe_phy_sw_reset(hw);
+
+ pch_gbe_phy_read_reg_miic(hw, PHY_PHYSP_CONTROL, &mii_reg);
+ mii_reg |= PHYSP_CTRL_ASSERT_CRS_TX;
+ pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL, mii_reg);
+
+}
--- /dev/null
+/*
+ * 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_PHY_H_
+#define _PCH_GBE_PHY_H_
+
+#define PCH_GBE_PHY_REGS_LEN 32
+#define PCH_GBE_PHY_RESET_DELAY_US 10
+#define PCH_GBE_MAC_IFOP_RGMII
+
+s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw);
+s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data);
+s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data);
+void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_phy_power_up(struct pch_gbe_hw *hw);
+void pch_gbe_phy_power_down(struct pch_gbe_hw *hw);
+void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw);
+void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw);
+
+#endif /* _PCH_GBE_PHY_H_ */
+++ /dev/null
-obj-$(CONFIG_PCH_GBE) += pch_gbe.o
-
-pch_gbe-y := pch_gbe_phy.o pch_gbe_ethtool.o pch_gbe_param.o
-pch_gbe-y += pch_gbe_api.o pch_gbe_main.o
+++ /dev/null
-/*
- * 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 0x40000000 /* TX MAC, TX FIFO, TX DMA reset */
-#define PCH_GBE_RX_RST 0x04000000 /* 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 */
-
-/* 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 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 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;
-};
-
-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_ */
+++ /dev/null
-/*
- * 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.
- */
-#include "pch_gbe.h"
-#include "pch_gbe_phy.h"
-
-/* bus type values */
-#define pch_gbe_bus_type_unknown 0
-#define pch_gbe_bus_type_pci 1
-#define pch_gbe_bus_type_pcix 2
-#define pch_gbe_bus_type_pci_express 3
-#define pch_gbe_bus_type_reserved 4
-
-/* bus speed values */
-#define pch_gbe_bus_speed_unknown 0
-#define pch_gbe_bus_speed_33 1
-#define pch_gbe_bus_speed_66 2
-#define pch_gbe_bus_speed_100 3
-#define pch_gbe_bus_speed_120 4
-#define pch_gbe_bus_speed_133 5
-#define pch_gbe_bus_speed_2500 6
-#define pch_gbe_bus_speed_reserved 7
-
-/* bus width values */
-#define pch_gbe_bus_width_unknown 0
-#define pch_gbe_bus_width_pcie_x1 1
-#define pch_gbe_bus_width_pcie_x2 2
-#define pch_gbe_bus_width_pcie_x4 4
-#define pch_gbe_bus_width_32 5
-#define pch_gbe_bus_width_64 6
-#define pch_gbe_bus_width_reserved 7
-
-/**
- * pch_gbe_plat_get_bus_info - Obtain bus information for adapter
- * @hw: Pointer to the HW structure
- */
-static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
-{
- hw->bus.type = pch_gbe_bus_type_pci_express;
- hw->bus.speed = pch_gbe_bus_speed_2500;
- hw->bus.width = pch_gbe_bus_width_pcie_x1;
-}
-
-/**
- * pch_gbe_plat_init_hw - Initialize hardware
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successfully
- * Negative value: Failed-EBUSY
- */
-static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
-{
- s32 ret_val;
-
- ret_val = pch_gbe_phy_get_id(hw);
- if (ret_val) {
- pr_err("pch_gbe_phy_get_id error\n");
- return ret_val;
- }
- pch_gbe_phy_init_setting(hw);
- /* Setup Mac interface option RGMII */
-#ifdef PCH_GBE_MAC_IFOP_RGMII
- pch_gbe_phy_set_rgmii(hw);
-#endif
- return ret_val;
-}
-
-static const struct pch_gbe_functions pch_gbe_ops = {
- .get_bus_info = pch_gbe_plat_get_bus_info,
- .init_hw = pch_gbe_plat_init_hw,
- .read_phy_reg = pch_gbe_phy_read_reg_miic,
- .write_phy_reg = pch_gbe_phy_write_reg_miic,
- .reset_phy = pch_gbe_phy_hw_reset,
- .sw_reset_phy = pch_gbe_phy_sw_reset,
- .power_up_phy = pch_gbe_phy_power_up,
- .power_down_phy = pch_gbe_phy_power_down,
- .read_mac_addr = pch_gbe_mac_read_mac_addr
-};
-
-/**
- * pch_gbe_plat_init_function_pointers - Init func ptrs
- * @hw: Pointer to the HW structure
- */
-static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
-{
- /* Set PHY parameter */
- hw->phy.reset_delay_us = PCH_GBE_PHY_RESET_DELAY_US;
- /* Set function pointers */
- hw->func = &pch_gbe_ops;
-}
-
-/**
- * pch_gbe_hal_setup_init_funcs - Initializes function pointers
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successfully
- * ENOSYS: Function is not registered
- */
-inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
-{
- if (!hw->reg) {
- pr_err("ERROR: Registers not mapped\n");
- return -ENOSYS;
- }
- pch_gbe_plat_init_function_pointers(hw);
- return 0;
-}
-
-/**
- * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
-{
- if (!hw->func->get_bus_info)
- pr_err("ERROR: configuration\n");
- else
- hw->func->get_bus_info(hw);
-}
-
-/**
- * pch_gbe_hal_init_hw - Initialize hardware
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successfully
- * ENOSYS: Function is not registered
- */
-inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
-{
- if (!hw->func->init_hw) {
- pr_err("ERROR: configuration\n");
- return -ENOSYS;
- }
- return hw->func->init_hw(hw);
-}
-
-/**
- * pch_gbe_hal_read_phy_reg - Reads PHY register
- * @hw: Pointer to the HW structure
- * @offset: The register to read
- * @data: The buffer to store the 16-bit read.
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
- u16 *data)
-{
- if (!hw->func->read_phy_reg)
- return 0;
- return hw->func->read_phy_reg(hw, offset, data);
-}
-
-/**
- * pch_gbe_hal_write_phy_reg - Writes PHY register
- * @hw: Pointer to the HW structure
- * @offset: The register to read
- * @data: The value to write.
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
- u16 data)
-{
- if (!hw->func->write_phy_reg)
- return 0;
- return hw->func->write_phy_reg(hw, offset, data);
-}
-
-/**
- * pch_gbe_hal_phy_hw_reset - Hard PHY reset
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
-{
- if (!hw->func->reset_phy)
- pr_err("ERROR: configuration\n");
- else
- hw->func->reset_phy(hw);
-}
-
-/**
- * pch_gbe_hal_phy_sw_reset - Soft PHY reset
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
-{
- if (!hw->func->sw_reset_phy)
- pr_err("ERROR: configuration\n");
- else
- hw->func->sw_reset_phy(hw);
-}
-
-/**
- * pch_gbe_hal_read_mac_addr - Reads MAC address
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successfully
- * ENOSYS: Function is not registered
- */
-inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
-{
- if (!hw->func->read_mac_addr) {
- pr_err("ERROR: configuration\n");
- return -ENOSYS;
- }
- return hw->func->read_mac_addr(hw);
-}
-
-/**
- * pch_gbe_hal_power_up_phy - Power up PHY
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
-{
- if (hw->func->power_up_phy)
- hw->func->power_up_phy(hw);
-}
-
-/**
- * pch_gbe_hal_power_down_phy - Power down PHY
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
-{
- if (hw->func->power_down_phy)
- hw->func->power_down_phy(hw);
-}
+++ /dev/null
-/*
- * 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_API_H_
-#define _PCH_GBE_API_H_
-
-#include "pch_gbe_phy.h"
-
-s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw);
-void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw);
-s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw);
-s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 *data);
-s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 data);
-void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw);
-void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw);
-s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw);
-void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw);
-void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw);
-
-#endif
+++ /dev/null
-/*
- * 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.
- */
-#include "pch_gbe.h"
-#include "pch_gbe_api.h"
-
-/**
- * pch_gbe_stats - Stats item information
- */
-struct pch_gbe_stats {
- char string[ETH_GSTRING_LEN];
- size_t size;
- size_t offset;
-};
-
-#define PCH_GBE_STAT(m) \
-{ \
- .string = #m, \
- .size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m), \
- .offset = offsetof(struct pch_gbe_hw_stats, m), \
-}
-
-/**
- * pch_gbe_gstrings_stats - ethtool information status name list
- */
-static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
- PCH_GBE_STAT(rx_packets),
- PCH_GBE_STAT(tx_packets),
- PCH_GBE_STAT(rx_bytes),
- PCH_GBE_STAT(tx_bytes),
- PCH_GBE_STAT(rx_errors),
- PCH_GBE_STAT(tx_errors),
- PCH_GBE_STAT(rx_dropped),
- PCH_GBE_STAT(tx_dropped),
- PCH_GBE_STAT(multicast),
- PCH_GBE_STAT(collisions),
- PCH_GBE_STAT(rx_crc_errors),
- PCH_GBE_STAT(rx_frame_errors),
- PCH_GBE_STAT(rx_alloc_buff_failed),
- PCH_GBE_STAT(tx_length_errors),
- PCH_GBE_STAT(tx_aborted_errors),
- PCH_GBE_STAT(tx_carrier_errors),
- PCH_GBE_STAT(tx_timeout_count),
- PCH_GBE_STAT(tx_restart_count),
- PCH_GBE_STAT(intr_rx_dsc_empty_count),
- PCH_GBE_STAT(intr_rx_frame_err_count),
- PCH_GBE_STAT(intr_rx_fifo_err_count),
- PCH_GBE_STAT(intr_rx_dma_err_count),
- PCH_GBE_STAT(intr_tx_fifo_err_count),
- PCH_GBE_STAT(intr_tx_dma_err_count),
- PCH_GBE_STAT(intr_tcpip_err_count)
-};
-
-#define PCH_GBE_QUEUE_STATS_LEN 0
-#define PCH_GBE_GLOBAL_STATS_LEN ARRAY_SIZE(pch_gbe_gstrings_stats)
-#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)
-
-#define PCH_GBE_MAC_REGS_LEN (sizeof(struct pch_gbe_regs) / 4)
-#define PCH_GBE_REGS_LEN (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
-/**
- * pch_gbe_get_settings - Get device-specific settings
- * @netdev: Network interface device structure
- * @ecmd: Ethtool command
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_get_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- int ret;
-
- ret = mii_ethtool_gset(&adapter->mii, ecmd);
- ecmd->supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
- ecmd->advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
-
- if (!netif_carrier_ok(adapter->netdev))
- ethtool_cmd_speed_set(ecmd, -1);
- return ret;
-}
-
-/**
- * pch_gbe_set_settings - Set device-specific settings
- * @netdev: Network interface device structure
- * @ecmd: Ethtool command
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_set_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 speed = ethtool_cmd_speed(ecmd);
- int ret;
-
- pch_gbe_hal_write_phy_reg(hw, MII_BMCR, BMCR_RESET);
-
- /* when set_settings() is called with a ethtool_cmd previously
- * filled by get_settings() on a down link, speed is -1: */
- if (speed == UINT_MAX) {
- speed = SPEED_1000;
- ecmd->duplex = DUPLEX_FULL;
- }
- ret = mii_ethtool_sset(&adapter->mii, ecmd);
- if (ret) {
- pr_err("Error: mii_ethtool_sset\n");
- return ret;
- }
- hw->mac.link_speed = speed;
- hw->mac.link_duplex = ecmd->duplex;
- hw->phy.autoneg_advertised = ecmd->advertising;
- hw->mac.autoneg = ecmd->autoneg;
- pch_gbe_hal_phy_sw_reset(hw);
-
- /* reset the link */
- if (netif_running(adapter->netdev)) {
- pch_gbe_down(adapter);
- ret = pch_gbe_up(adapter);
- } else {
- pch_gbe_reset(adapter);
- }
- return ret;
-}
-
-/**
- * pch_gbe_get_regs_len - Report the size of device registers
- * @netdev: Network interface device structure
- * Returns: the size of device registers.
- */
-static int pch_gbe_get_regs_len(struct net_device *netdev)
-{
- return PCH_GBE_REGS_LEN * (int)sizeof(u32);
-}
-
-/**
- * pch_gbe_get_drvinfo - Report driver information
- * @netdev: Network interface device structure
- * @drvinfo: Driver information structure
- */
-static void pch_gbe_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *drvinfo)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- strcpy(drvinfo->driver, KBUILD_MODNAME);
- strcpy(drvinfo->version, pch_driver_version);
- strcpy(drvinfo->fw_version, "N/A");
- strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
- drvinfo->regdump_len = pch_gbe_get_regs_len(netdev);
-}
-
-/**
- * pch_gbe_get_regs - Get device registers
- * @netdev: Network interface device structure
- * @regs: Ethtool register structure
- * @p: Buffer pointer of read device register date
- */
-static void pch_gbe_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *p)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
- u32 *regs_buff = p;
- u16 i, tmp;
-
- regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
- for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
- *regs_buff++ = ioread32(&hw->reg->INT_ST + i);
- /* PHY register */
- for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
- pch_gbe_hal_read_phy_reg(&adapter->hw, i, &tmp);
- *regs_buff++ = tmp;
- }
-}
-
-/**
- * pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
- * @netdev: Network interface device structure
- * @wol: Wake-on-Lan information
- */
-static void pch_gbe_get_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
- wol->wolopts = 0;
-
- if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
- wol->wolopts |= WAKE_UCAST;
- if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
- wol->wolopts |= WAKE_MCAST;
- if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
- wol->wolopts |= WAKE_BCAST;
- if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
- wol->wolopts |= WAKE_MAGIC;
-}
-
-/**
- * pch_gbe_set_wol - Turn Wake-on-Lan on or off
- * @netdev: Network interface device structure
- * @wol: Pointer of wake-on-Lan information straucture
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_set_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
- return -EOPNOTSUPP;
- /* these settings will always override what we currently have */
- adapter->wake_up_evt = 0;
-
- if ((wol->wolopts & WAKE_UCAST))
- adapter->wake_up_evt |= PCH_GBE_WLC_IND;
- if ((wol->wolopts & WAKE_MCAST))
- adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
- if ((wol->wolopts & WAKE_BCAST))
- adapter->wake_up_evt |= PCH_GBE_WLC_BR;
- if ((wol->wolopts & WAKE_MAGIC))
- adapter->wake_up_evt |= PCH_GBE_WLC_MP;
- return 0;
-}
-
-/**
- * pch_gbe_nway_reset - Restart autonegotiation
- * @netdev: Network interface device structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_nway_reset(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- return mii_nway_restart(&adapter->mii);
-}
-
-/**
- * pch_gbe_get_ringparam - Report ring sizes
- * @netdev: Network interface device structure
- * @ring: Ring param structure
- */
-static void pch_gbe_get_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
- struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;
-
- ring->rx_max_pending = PCH_GBE_MAX_RXD;
- ring->tx_max_pending = PCH_GBE_MAX_TXD;
- ring->rx_mini_max_pending = 0;
- ring->rx_jumbo_max_pending = 0;
- ring->rx_pending = rxdr->count;
- ring->tx_pending = txdr->count;
- ring->rx_mini_pending = 0;
- ring->rx_jumbo_pending = 0;
-}
-
-/**
- * pch_gbe_set_ringparam - Set ring sizes
- * @netdev: Network interface device structure
- * @ring: Ring param structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_set_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_tx_ring *txdr, *tx_old;
- struct pch_gbe_rx_ring *rxdr, *rx_old;
- int tx_ring_size, rx_ring_size;
- int err = 0;
-
- if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
- return -EINVAL;
- tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
- rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);
-
- if ((netif_running(adapter->netdev)))
- pch_gbe_down(adapter);
- tx_old = adapter->tx_ring;
- rx_old = adapter->rx_ring;
-
- txdr = kzalloc(tx_ring_size, GFP_KERNEL);
- if (!txdr) {
- err = -ENOMEM;
- goto err_alloc_tx;
- }
- rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
- if (!rxdr) {
- err = -ENOMEM;
- goto err_alloc_rx;
- }
- adapter->tx_ring = txdr;
- adapter->rx_ring = rxdr;
-
- rxdr->count =
- clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
- rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);
-
- txdr->count =
- clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
- txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);
-
- if ((netif_running(adapter->netdev))) {
- /* Try to get new resources before deleting old */
- err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
- if (err)
- goto err_setup_rx;
- err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
- if (err)
- goto err_setup_tx;
- /* save the new, restore the old in order to free it,
- * then restore the new back again */
-#ifdef RINGFREE
- adapter->rx_ring = rx_old;
- adapter->tx_ring = tx_old;
- pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
- pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
- kfree(tx_old);
- kfree(rx_old);
- adapter->rx_ring = rxdr;
- adapter->tx_ring = txdr;
-#else
- pch_gbe_free_rx_resources(adapter, rx_old);
- pch_gbe_free_tx_resources(adapter, tx_old);
- kfree(tx_old);
- kfree(rx_old);
- adapter->rx_ring = rxdr;
- adapter->tx_ring = txdr;
-#endif
- err = pch_gbe_up(adapter);
- }
- return err;
-
-err_setup_tx:
- pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
-err_setup_rx:
- adapter->rx_ring = rx_old;
- adapter->tx_ring = tx_old;
- kfree(rxdr);
-err_alloc_rx:
- kfree(txdr);
-err_alloc_tx:
- if (netif_running(adapter->netdev))
- pch_gbe_up(adapter);
- return err;
-}
-
-/**
- * pch_gbe_get_pauseparam - Report pause parameters
- * @netdev: Network interface device structure
- * @pause: Pause parameters structure
- */
-static void pch_gbe_get_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *pause)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
-
- pause->autoneg =
- ((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);
-
- if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
- pause->rx_pause = 1;
- } else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
- pause->tx_pause = 1;
- } else if (hw->mac.fc == PCH_GBE_FC_FULL) {
- pause->rx_pause = 1;
- pause->tx_pause = 1;
- }
-}
-
-/**
- * pch_gbe_set_pauseparam - Set pause paramters
- * @netdev: Network interface device structure
- * @pause: Pause parameters structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_set_pauseparam(struct net_device *netdev,
- struct ethtool_pauseparam *pause)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- int ret = 0;
-
- hw->mac.fc_autoneg = pause->autoneg;
- if ((pause->rx_pause) && (pause->tx_pause))
- hw->mac.fc = PCH_GBE_FC_FULL;
- else if ((pause->rx_pause) && (!pause->tx_pause))
- hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
- else if ((!pause->rx_pause) && (pause->tx_pause))
- hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
- else if ((!pause->rx_pause) && (!pause->tx_pause))
- hw->mac.fc = PCH_GBE_FC_NONE;
-
- if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
- if ((netif_running(adapter->netdev))) {
- pch_gbe_down(adapter);
- ret = pch_gbe_up(adapter);
- } else {
- pch_gbe_reset(adapter);
- }
- } else {
- ret = pch_gbe_mac_force_mac_fc(hw);
- }
- return ret;
-}
-
-/**
- * pch_gbe_get_strings - Return a set of strings that describe the requested
- * objects
- * @netdev: Network interface device structure
- * @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
- * @data: Pointer of read string data.
- */
-static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
- u8 *data)
-{
- u8 *p = data;
- int i;
-
- switch (stringset) {
- case (u32) ETH_SS_STATS:
- for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
- memcpy(p, pch_gbe_gstrings_stats[i].string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- break;
- }
-}
-
-/**
- * pch_gbe_get_ethtool_stats - Return statistics about the device
- * @netdev: Network interface device structure
- * @stats: Ethtool statue structure
- * @data: Pointer of read status area
- */
-static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- int i;
- const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
- char *hw_stats = (char *)&adapter->stats;
-
- pch_gbe_update_stats(adapter);
- for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
- char *p = hw_stats + gstats->offset;
- data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
- gstats++;
- }
-}
-
-static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return PCH_GBE_STATS_LEN;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static const struct ethtool_ops pch_gbe_ethtool_ops = {
- .get_settings = pch_gbe_get_settings,
- .set_settings = pch_gbe_set_settings,
- .get_drvinfo = pch_gbe_get_drvinfo,
- .get_regs_len = pch_gbe_get_regs_len,
- .get_regs = pch_gbe_get_regs,
- .get_wol = pch_gbe_get_wol,
- .set_wol = pch_gbe_set_wol,
- .nway_reset = pch_gbe_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_ringparam = pch_gbe_get_ringparam,
- .set_ringparam = pch_gbe_set_ringparam,
- .get_pauseparam = pch_gbe_get_pauseparam,
- .set_pauseparam = pch_gbe_set_pauseparam,
- .get_strings = pch_gbe_get_strings,
- .get_ethtool_stats = pch_gbe_get_ethtool_stats,
- .get_sset_count = pch_gbe_get_sset_count,
-};
-
-void pch_gbe_set_ethtool_ops(struct net_device *netdev)
-{
- SET_ETHTOOL_OPS(netdev, &pch_gbe_ethtool_ops);
-}
+++ /dev/null
-/*
- * 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.
- */
-
-#include "pch_gbe.h"
-#include "pch_gbe_api.h"
-#include <linux/prefetch.h>
-
-#define DRV_VERSION "1.00"
-const char pch_driver_version[] = DRV_VERSION;
-
-#define PCI_DEVICE_ID_INTEL_IOH1_GBE 0x8802 /* Pci device ID */
-#define PCH_GBE_MAR_ENTRIES 16
-#define PCH_GBE_SHORT_PKT 64
-#define DSC_INIT16 0xC000
-#define PCH_GBE_DMA_ALIGN 0
-#define PCH_GBE_DMA_PADDING 2
-#define PCH_GBE_WATCHDOG_PERIOD (1 * HZ) /* watchdog time */
-#define PCH_GBE_COPYBREAK_DEFAULT 256
-#define PCH_GBE_PCI_BAR 1
-
-/* Macros for ML7223 */
-#define PCI_VENDOR_ID_ROHM 0x10db
-#define PCI_DEVICE_ID_ROHM_ML7223_GBE 0x8013
-
-#define PCH_GBE_TX_WEIGHT 64
-#define PCH_GBE_RX_WEIGHT 64
-#define PCH_GBE_RX_BUFFER_WRITE 16
-
-/* Initialize the wake-on-LAN settings */
-#define PCH_GBE_WL_INIT_SETTING (PCH_GBE_WLC_MP)
-
-#define PCH_GBE_MAC_RGMII_CTRL_SETTING ( \
- PCH_GBE_CHIP_TYPE_INTERNAL | \
- PCH_GBE_RGMII_MODE_RGMII \
- )
-
-/* Ethertype field values */
-#define PCH_GBE_MAX_JUMBO_FRAME_SIZE 10318
-#define PCH_GBE_FRAME_SIZE_2048 2048
-#define PCH_GBE_FRAME_SIZE_4096 4096
-#define PCH_GBE_FRAME_SIZE_8192 8192
-
-#define PCH_GBE_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
-#define PCH_GBE_RX_DESC(R, i) PCH_GBE_GET_DESC(R, i, pch_gbe_rx_desc)
-#define PCH_GBE_TX_DESC(R, i) PCH_GBE_GET_DESC(R, i, pch_gbe_tx_desc)
-#define PCH_GBE_DESC_UNUSED(R) \
- ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
- (R)->next_to_clean - (R)->next_to_use - 1)
-
-/* Pause packet value */
-#define PCH_GBE_PAUSE_PKT1_VALUE 0x00C28001
-#define PCH_GBE_PAUSE_PKT2_VALUE 0x00000100
-#define PCH_GBE_PAUSE_PKT4_VALUE 0x01000888
-#define PCH_GBE_PAUSE_PKT5_VALUE 0x0000FFFF
-
-#define PCH_GBE_ETH_ALEN 6
-
-/* This defines the bits that are set in the Interrupt Mask
- * Set/Read Register. Each bit is documented below:
- * o RXT0 = Receiver Timer Interrupt (ring 0)
- * o TXDW = Transmit Descriptor Written Back
- * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
- * o RXSEQ = Receive Sequence Error
- * o LSC = Link Status Change
- */
-#define PCH_GBE_INT_ENABLE_MASK ( \
- PCH_GBE_INT_RX_DMA_CMPLT | \
- PCH_GBE_INT_RX_DSC_EMP | \
- PCH_GBE_INT_WOL_DET | \
- PCH_GBE_INT_TX_CMPLT \
- )
-
-
-static unsigned int copybreak __read_mostly = PCH_GBE_COPYBREAK_DEFAULT;
-
-static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg);
-static void pch_gbe_mdio_write(struct net_device *netdev, int addr, int reg,
- int data);
-
-inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
-{
- iowrite32(0x01, &hw->reg->MAC_ADDR_LOAD);
-}
-
-/**
- * pch_gbe_mac_read_mac_addr - Read MAC address
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successful.
- */
-s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
-{
- u32 adr1a, adr1b;
-
- adr1a = ioread32(&hw->reg->mac_adr[0].high);
- adr1b = ioread32(&hw->reg->mac_adr[0].low);
-
- hw->mac.addr[0] = (u8)(adr1a & 0xFF);
- hw->mac.addr[1] = (u8)((adr1a >> 8) & 0xFF);
- hw->mac.addr[2] = (u8)((adr1a >> 16) & 0xFF);
- hw->mac.addr[3] = (u8)((adr1a >> 24) & 0xFF);
- hw->mac.addr[4] = (u8)(adr1b & 0xFF);
- hw->mac.addr[5] = (u8)((adr1b >> 8) & 0xFF);
-
- pr_debug("hw->mac.addr : %pM\n", hw->mac.addr);
- return 0;
-}
-
-/**
- * pch_gbe_wait_clr_bit - Wait to clear a bit
- * @reg: Pointer of register
- * @busy: Busy bit
- */
-static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
-{
- u32 tmp;
- /* wait busy */
- tmp = 1000;
- while ((ioread32(reg) & bit) && --tmp)
- cpu_relax();
- if (!tmp)
- pr_err("Error: busy bit is not cleared\n");
-}
-/**
- * pch_gbe_mac_mar_set - Set MAC address register
- * @hw: Pointer to the HW structure
- * @addr: Pointer to the MAC address
- * @index: MAC address array register
- */
-static void pch_gbe_mac_mar_set(struct pch_gbe_hw *hw, u8 * addr, u32 index)
-{
- u32 mar_low, mar_high, adrmask;
-
- pr_debug("index : 0x%x\n", index);
-
- /*
- * HW expects these in little endian so we reverse the byte order
- * from network order (big endian) to little endian
- */
- mar_high = ((u32) addr[0] | ((u32) addr[1] << 8) |
- ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
- mar_low = ((u32) addr[4] | ((u32) addr[5] << 8));
- /* Stop the MAC Address of index. */
- adrmask = ioread32(&hw->reg->ADDR_MASK);
- iowrite32((adrmask | (0x0001 << index)), &hw->reg->ADDR_MASK);
- /* wait busy */
- pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
- /* Set the MAC address to the MAC address 1A/1B register */
- iowrite32(mar_high, &hw->reg->mac_adr[index].high);
- iowrite32(mar_low, &hw->reg->mac_adr[index].low);
- /* Start the MAC address of index */
- iowrite32((adrmask & ~(0x0001 << index)), &hw->reg->ADDR_MASK);
- /* wait busy */
- pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-}
-
-/**
- * pch_gbe_mac_reset_hw - Reset hardware
- * @hw: Pointer to the HW structure
- */
-static void pch_gbe_mac_reset_hw(struct pch_gbe_hw *hw)
-{
- /* Read the MAC address. and store to the private data */
- pch_gbe_mac_read_mac_addr(hw);
- iowrite32(PCH_GBE_ALL_RST, &hw->reg->RESET);
-#ifdef PCH_GBE_MAC_IFOP_RGMII
- iowrite32(PCH_GBE_MODE_GMII_ETHER, &hw->reg->MODE);
-#endif
- pch_gbe_wait_clr_bit(&hw->reg->RESET, PCH_GBE_ALL_RST);
- /* Setup the receive address */
- pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
- return;
-}
-
-/**
- * pch_gbe_mac_init_rx_addrs - Initialize receive address's
- * @hw: Pointer to the HW structure
- * @mar_count: Receive address registers
- */
-static void pch_gbe_mac_init_rx_addrs(struct pch_gbe_hw *hw, u16 mar_count)
-{
- u32 i;
-
- /* Setup the receive address */
- pch_gbe_mac_mar_set(hw, hw->mac.addr, 0);
-
- /* Zero out the other receive addresses */
- for (i = 1; i < mar_count; i++) {
- iowrite32(0, &hw->reg->mac_adr[i].high);
- iowrite32(0, &hw->reg->mac_adr[i].low);
- }
- iowrite32(0xFFFE, &hw->reg->ADDR_MASK);
- /* wait busy */
- pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
-}
-
-
-/**
- * pch_gbe_mac_mc_addr_list_update - Update Multicast addresses
- * @hw: Pointer to the HW structure
- * @mc_addr_list: Array of multicast addresses to program
- * @mc_addr_count: Number of multicast addresses to program
- * @mar_used_count: The first MAC Address register free to program
- * @mar_total_num: Total number of supported MAC Address Registers
- */
-static void pch_gbe_mac_mc_addr_list_update(struct pch_gbe_hw *hw,
- u8 *mc_addr_list, u32 mc_addr_count,
- u32 mar_used_count, u32 mar_total_num)
-{
- u32 i, adrmask;
-
- /* Load the first set of multicast addresses into the exact
- * filters (RAR). If there are not enough to fill the RAR
- * array, clear the filters.
- */
- for (i = mar_used_count; i < mar_total_num; i++) {
- if (mc_addr_count) {
- pch_gbe_mac_mar_set(hw, mc_addr_list, i);
- mc_addr_count--;
- mc_addr_list += PCH_GBE_ETH_ALEN;
- } else {
- /* Clear MAC address mask */
- adrmask = ioread32(&hw->reg->ADDR_MASK);
- iowrite32((adrmask | (0x0001 << i)),
- &hw->reg->ADDR_MASK);
- /* wait busy */
- pch_gbe_wait_clr_bit(&hw->reg->ADDR_MASK, PCH_GBE_BUSY);
- /* Clear MAC address */
- iowrite32(0, &hw->reg->mac_adr[i].high);
- iowrite32(0, &hw->reg->mac_adr[i].low);
- }
- }
-}
-
-/**
- * pch_gbe_mac_force_mac_fc - Force the MAC's flow control settings
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
-{
- struct pch_gbe_mac_info *mac = &hw->mac;
- u32 rx_fctrl;
-
- pr_debug("mac->fc = %u\n", mac->fc);
-
- rx_fctrl = ioread32(&hw->reg->RX_FCTRL);
-
- switch (mac->fc) {
- case PCH_GBE_FC_NONE:
- rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
- mac->tx_fc_enable = false;
- break;
- case PCH_GBE_FC_RX_PAUSE:
- rx_fctrl |= PCH_GBE_FL_CTRL_EN;
- mac->tx_fc_enable = false;
- break;
- case PCH_GBE_FC_TX_PAUSE:
- rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
- mac->tx_fc_enable = true;
- break;
- case PCH_GBE_FC_FULL:
- rx_fctrl |= PCH_GBE_FL_CTRL_EN;
- mac->tx_fc_enable = true;
- break;
- default:
- pr_err("Flow control param set incorrectly\n");
- return -EINVAL;
- }
- if (mac->link_duplex == DUPLEX_HALF)
- rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
- iowrite32(rx_fctrl, &hw->reg->RX_FCTRL);
- pr_debug("RX_FCTRL reg : 0x%08x mac->tx_fc_enable : %d\n",
- ioread32(&hw->reg->RX_FCTRL), mac->tx_fc_enable);
- return 0;
-}
-
-/**
- * pch_gbe_mac_set_wol_event - Set wake-on-lan event
- * @hw: Pointer to the HW structure
- * @wu_evt: Wake up event
- */
-static void pch_gbe_mac_set_wol_event(struct pch_gbe_hw *hw, u32 wu_evt)
-{
- u32 addr_mask;
-
- pr_debug("wu_evt : 0x%08x ADDR_MASK reg : 0x%08x\n",
- wu_evt, ioread32(&hw->reg->ADDR_MASK));
-
- if (wu_evt) {
- /* Set Wake-On-Lan address mask */
- addr_mask = ioread32(&hw->reg->ADDR_MASK);
- iowrite32(addr_mask, &hw->reg->WOL_ADDR_MASK);
- /* wait busy */
- pch_gbe_wait_clr_bit(&hw->reg->WOL_ADDR_MASK, PCH_GBE_WLA_BUSY);
- iowrite32(0, &hw->reg->WOL_ST);
- iowrite32((wu_evt | PCH_GBE_WLC_WOL_MODE), &hw->reg->WOL_CTRL);
- iowrite32(0x02, &hw->reg->TCPIP_ACC);
- iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
- } else {
- iowrite32(0, &hw->reg->WOL_CTRL);
- iowrite32(0, &hw->reg->WOL_ST);
- }
- return;
-}
-
-/**
- * pch_gbe_mac_ctrl_miim - Control MIIM interface
- * @hw: Pointer to the HW structure
- * @addr: Address of PHY
- * @dir: Operetion. (Write or Read)
- * @reg: Access register of PHY
- * @data: Write data.
- *
- * Returns: Read date.
- */
-u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
- u16 data)
-{
- u32 data_out = 0;
- unsigned int i;
- unsigned long flags;
-
- spin_lock_irqsave(&hw->miim_lock, flags);
-
- for (i = 100; i; --i) {
- if ((ioread32(&hw->reg->MIIM) & PCH_GBE_MIIM_OPER_READY))
- break;
- udelay(20);
- }
- if (i == 0) {
- pr_err("pch-gbe.miim won't go Ready\n");
- spin_unlock_irqrestore(&hw->miim_lock, flags);
- return 0; /* No way to indicate timeout error */
- }
- iowrite32(((reg << PCH_GBE_MIIM_REG_ADDR_SHIFT) |
- (addr << PCH_GBE_MIIM_PHY_ADDR_SHIFT) |
- dir | data), &hw->reg->MIIM);
- for (i = 0; i < 100; i++) {
- udelay(20);
- data_out = ioread32(&hw->reg->MIIM);
- if ((data_out & PCH_GBE_MIIM_OPER_READY))
- break;
- }
- spin_unlock_irqrestore(&hw->miim_lock, flags);
-
- pr_debug("PHY %s: reg=%d, data=0x%04X\n",
- dir == PCH_GBE_MIIM_OPER_READ ? "READ" : "WRITE", reg,
- dir == PCH_GBE_MIIM_OPER_READ ? data_out : data);
- return (u16) data_out;
-}
-
-/**
- * pch_gbe_mac_set_pause_packet - Set pause packet
- * @hw: Pointer to the HW structure
- */
-static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
-{
- unsigned long tmp2, tmp3;
-
- /* Set Pause packet */
- tmp2 = hw->mac.addr[1];
- tmp2 = (tmp2 << 8) | hw->mac.addr[0];
- tmp2 = PCH_GBE_PAUSE_PKT2_VALUE | (tmp2 << 16);
-
- tmp3 = hw->mac.addr[5];
- tmp3 = (tmp3 << 8) | hw->mac.addr[4];
- tmp3 = (tmp3 << 8) | hw->mac.addr[3];
- tmp3 = (tmp3 << 8) | hw->mac.addr[2];
-
- iowrite32(PCH_GBE_PAUSE_PKT1_VALUE, &hw->reg->PAUSE_PKT1);
- iowrite32(tmp2, &hw->reg->PAUSE_PKT2);
- iowrite32(tmp3, &hw->reg->PAUSE_PKT3);
- iowrite32(PCH_GBE_PAUSE_PKT4_VALUE, &hw->reg->PAUSE_PKT4);
- iowrite32(PCH_GBE_PAUSE_PKT5_VALUE, &hw->reg->PAUSE_PKT5);
-
- /* Transmit Pause Packet */
- iowrite32(PCH_GBE_PS_PKT_RQ, &hw->reg->PAUSE_REQ);
-
- pr_debug("PAUSE_PKT1-5 reg : 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
- ioread32(&hw->reg->PAUSE_PKT1), ioread32(&hw->reg->PAUSE_PKT2),
- ioread32(&hw->reg->PAUSE_PKT3), ioread32(&hw->reg->PAUSE_PKT4),
- ioread32(&hw->reg->PAUSE_PKT5));
-
- return;
-}
-
-
-/**
- * pch_gbe_alloc_queues - Allocate memory for all rings
- * @adapter: Board private structure to initialize
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_alloc_queues(struct pch_gbe_adapter *adapter)
-{
- int size;
-
- size = (int)sizeof(struct pch_gbe_tx_ring);
- adapter->tx_ring = kzalloc(size, GFP_KERNEL);
- if (!adapter->tx_ring)
- return -ENOMEM;
- size = (int)sizeof(struct pch_gbe_rx_ring);
- adapter->rx_ring = kzalloc(size, GFP_KERNEL);
- if (!adapter->rx_ring) {
- kfree(adapter->tx_ring);
- return -ENOMEM;
- }
- return 0;
-}
-
-/**
- * pch_gbe_init_stats - Initialize status
- * @adapter: Board private structure to initialize
- */
-static void pch_gbe_init_stats(struct pch_gbe_adapter *adapter)
-{
- memset(&adapter->stats, 0, sizeof(adapter->stats));
- return;
-}
-
-/**
- * pch_gbe_init_phy - Initialize PHY
- * @adapter: Board private structure to initialize
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_init_phy(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- u32 addr;
- u16 bmcr, stat;
-
- /* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
- for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
- adapter->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
- bmcr = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMCR);
- stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
- stat = pch_gbe_mdio_read(netdev, adapter->mii.phy_id, MII_BMSR);
- if (!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
- break;
- }
- adapter->hw.phy.addr = adapter->mii.phy_id;
- pr_debug("phy_addr = %d\n", adapter->mii.phy_id);
- if (addr == 32)
- return -EAGAIN;
- /* Selected the phy and isolate the rest */
- for (addr = 0; addr < PCH_GBE_PHY_REGS_LEN; addr++) {
- if (addr != adapter->mii.phy_id) {
- pch_gbe_mdio_write(netdev, addr, MII_BMCR,
- BMCR_ISOLATE);
- } else {
- bmcr = pch_gbe_mdio_read(netdev, addr, MII_BMCR);
- pch_gbe_mdio_write(netdev, addr, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
- }
- }
-
- /* MII setup */
- adapter->mii.phy_id_mask = 0x1F;
- adapter->mii.reg_num_mask = 0x1F;
- adapter->mii.dev = adapter->netdev;
- adapter->mii.mdio_read = pch_gbe_mdio_read;
- adapter->mii.mdio_write = pch_gbe_mdio_write;
- adapter->mii.supports_gmii = mii_check_gmii_support(&adapter->mii);
- return 0;
-}
-
-/**
- * pch_gbe_mdio_read - The read function for mii
- * @netdev: Network interface device structure
- * @addr: Phy ID
- * @reg: Access location
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
-
- return pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_READ, reg,
- (u16) 0);
-}
-
-/**
- * pch_gbe_mdio_write - The write function for mii
- * @netdev: Network interface device structure
- * @addr: Phy ID (not used)
- * @reg: Access location
- * @data: Write data
- */
-static void pch_gbe_mdio_write(struct net_device *netdev,
- int addr, int reg, int data)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
-
- pch_gbe_mac_ctrl_miim(hw, addr, PCH_GBE_HAL_MIIM_WRITE, reg, data);
-}
-
-/**
- * pch_gbe_reset_task - Reset processing at the time of transmission timeout
- * @work: Pointer of board private structure
- */
-static void pch_gbe_reset_task(struct work_struct *work)
-{
- struct pch_gbe_adapter *adapter;
- adapter = container_of(work, struct pch_gbe_adapter, reset_task);
-
- rtnl_lock();
- pch_gbe_reinit_locked(adapter);
- rtnl_unlock();
-}
-
-/**
- * pch_gbe_reinit_locked- Re-initialization
- * @adapter: Board private structure
- */
-void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter)
-{
- pch_gbe_down(adapter);
- pch_gbe_up(adapter);
-}
-
-/**
- * pch_gbe_reset - Reset GbE
- * @adapter: Board private structure
- */
-void pch_gbe_reset(struct pch_gbe_adapter *adapter)
-{
- pch_gbe_mac_reset_hw(&adapter->hw);
- /* Setup the receive address. */
- pch_gbe_mac_init_rx_addrs(&adapter->hw, PCH_GBE_MAR_ENTRIES);
- if (pch_gbe_hal_init_hw(&adapter->hw))
- pr_err("Hardware Error\n");
-}
-
-/**
- * pch_gbe_free_irq - Free an interrupt
- * @adapter: Board private structure
- */
-static void pch_gbe_free_irq(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- free_irq(adapter->pdev->irq, netdev);
- if (adapter->have_msi) {
- pci_disable_msi(adapter->pdev);
- pr_debug("call pci_disable_msi\n");
- }
-}
-
-/**
- * pch_gbe_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: Board private structure
- */
-static void pch_gbe_irq_disable(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
-
- atomic_inc(&adapter->irq_sem);
- iowrite32(0, &hw->reg->INT_EN);
- ioread32(&hw->reg->INT_ST);
- synchronize_irq(adapter->pdev->irq);
-
- pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
-}
-
-/**
- * pch_gbe_irq_enable - Enable default interrupt generation settings
- * @adapter: Board private structure
- */
-static void pch_gbe_irq_enable(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
-
- if (likely(atomic_dec_and_test(&adapter->irq_sem)))
- iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
- ioread32(&hw->reg->INT_ST);
- pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
-}
-
-
-
-/**
- * pch_gbe_setup_tctl - configure the Transmit control registers
- * @adapter: Board private structure
- */
-static void pch_gbe_setup_tctl(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 tx_mode, tcpip;
-
- tx_mode = PCH_GBE_TM_LONG_PKT |
- PCH_GBE_TM_ST_AND_FD |
- PCH_GBE_TM_SHORT_PKT |
- PCH_GBE_TM_TH_TX_STRT_8 |
- PCH_GBE_TM_TH_ALM_EMP_4 | PCH_GBE_TM_TH_ALM_FULL_8;
-
- iowrite32(tx_mode, &hw->reg->TX_MODE);
-
- tcpip = ioread32(&hw->reg->TCPIP_ACC);
- tcpip |= PCH_GBE_TX_TCPIPACC_EN;
- iowrite32(tcpip, &hw->reg->TCPIP_ACC);
- return;
-}
-
-/**
- * pch_gbe_configure_tx - Configure Transmit Unit after Reset
- * @adapter: Board private structure
- */
-static void pch_gbe_configure_tx(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 tdba, tdlen, dctrl;
-
- pr_debug("dma addr = 0x%08llx size = 0x%08x\n",
- (unsigned long long)adapter->tx_ring->dma,
- adapter->tx_ring->size);
-
- /* Setup the HW Tx Head and Tail descriptor pointers */
- tdba = adapter->tx_ring->dma;
- tdlen = adapter->tx_ring->size - 0x10;
- iowrite32(tdba, &hw->reg->TX_DSC_BASE);
- iowrite32(tdlen, &hw->reg->TX_DSC_SIZE);
- iowrite32(tdba, &hw->reg->TX_DSC_SW_P);
-
- /* Enables Transmission DMA */
- dctrl = ioread32(&hw->reg->DMA_CTRL);
- dctrl |= PCH_GBE_TX_DMA_EN;
- iowrite32(dctrl, &hw->reg->DMA_CTRL);
-}
-
-/**
- * pch_gbe_setup_rctl - Configure the receive control registers
- * @adapter: Board private structure
- */
-static void pch_gbe_setup_rctl(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 rx_mode, tcpip;
-
- rx_mode = PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN |
- PCH_GBE_RH_ALM_EMP_4 | PCH_GBE_RH_ALM_FULL_4 | PCH_GBE_RH_RD_TRG_8;
-
- iowrite32(rx_mode, &hw->reg->RX_MODE);
-
- tcpip = ioread32(&hw->reg->TCPIP_ACC);
-
- if (netdev->features & NETIF_F_RXCSUM) {
- tcpip &= ~PCH_GBE_RX_TCPIPACC_OFF;
- tcpip |= PCH_GBE_RX_TCPIPACC_EN;
- } else {
- tcpip |= PCH_GBE_RX_TCPIPACC_OFF;
- tcpip &= ~PCH_GBE_RX_TCPIPACC_EN;
- }
- iowrite32(tcpip, &hw->reg->TCPIP_ACC);
- return;
-}
-
-/**
- * pch_gbe_configure_rx - Configure Receive Unit after Reset
- * @adapter: Board private structure
- */
-static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 rdba, rdlen, rctl, rxdma;
-
- pr_debug("dma adr = 0x%08llx size = 0x%08x\n",
- (unsigned long long)adapter->rx_ring->dma,
- adapter->rx_ring->size);
-
- pch_gbe_mac_force_mac_fc(hw);
-
- /* Disables Receive MAC */
- rctl = ioread32(&hw->reg->MAC_RX_EN);
- iowrite32((rctl & ~PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN);
-
- /* Disables Receive DMA */
- rxdma = ioread32(&hw->reg->DMA_CTRL);
- rxdma &= ~PCH_GBE_RX_DMA_EN;
- iowrite32(rxdma, &hw->reg->DMA_CTRL);
-
- pr_debug("MAC_RX_EN reg = 0x%08x DMA_CTRL reg = 0x%08x\n",
- ioread32(&hw->reg->MAC_RX_EN),
- ioread32(&hw->reg->DMA_CTRL));
-
- /* Setup the HW Rx Head and Tail Descriptor Pointers and
- * the Base and Length of the Rx Descriptor Ring */
- rdba = adapter->rx_ring->dma;
- rdlen = adapter->rx_ring->size - 0x10;
- iowrite32(rdba, &hw->reg->RX_DSC_BASE);
- iowrite32(rdlen, &hw->reg->RX_DSC_SIZE);
- iowrite32((rdba + rdlen), &hw->reg->RX_DSC_SW_P);
-
- /* Enables Receive DMA */
- rxdma = ioread32(&hw->reg->DMA_CTRL);
- rxdma |= PCH_GBE_RX_DMA_EN;
- iowrite32(rxdma, &hw->reg->DMA_CTRL);
- /* Enables Receive */
- iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN);
-}
-
-/**
- * pch_gbe_unmap_and_free_tx_resource - Unmap and free tx socket buffer
- * @adapter: Board private structure
- * @buffer_info: Buffer information structure
- */
-static void pch_gbe_unmap_and_free_tx_resource(
- struct pch_gbe_adapter *adapter, struct pch_gbe_buffer *buffer_info)
-{
- if (buffer_info->mapped) {
- dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
- buffer_info->length, DMA_TO_DEVICE);
- buffer_info->mapped = false;
- }
- if (buffer_info->skb) {
- dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
-}
-
-/**
- * pch_gbe_unmap_and_free_rx_resource - Unmap and free rx socket buffer
- * @adapter: Board private structure
- * @buffer_info: Buffer information structure
- */
-static void pch_gbe_unmap_and_free_rx_resource(
- struct pch_gbe_adapter *adapter,
- struct pch_gbe_buffer *buffer_info)
-{
- if (buffer_info->mapped) {
- dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
- buffer_info->length, DMA_FROM_DEVICE);
- buffer_info->mapped = false;
- }
- if (buffer_info->skb) {
- dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
-}
-
-/**
- * pch_gbe_clean_tx_ring - Free Tx Buffers
- * @adapter: Board private structure
- * @tx_ring: Ring to be cleaned
- */
-static void pch_gbe_clean_tx_ring(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- struct pch_gbe_buffer *buffer_info;
- unsigned long size;
- unsigned int i;
-
- /* Free all the Tx ring sk_buffs */
- for (i = 0; i < tx_ring->count; i++) {
- buffer_info = &tx_ring->buffer_info[i];
- pch_gbe_unmap_and_free_tx_resource(adapter, buffer_info);
- }
- pr_debug("call pch_gbe_unmap_and_free_tx_resource() %d count\n", i);
-
- size = (unsigned long)sizeof(struct pch_gbe_buffer) * tx_ring->count;
- memset(tx_ring->buffer_info, 0, size);
-
- /* Zero out the descriptor ring */
- memset(tx_ring->desc, 0, tx_ring->size);
- tx_ring->next_to_use = 0;
- tx_ring->next_to_clean = 0;
- iowrite32(tx_ring->dma, &hw->reg->TX_DSC_HW_P);
- iowrite32((tx_ring->size - 0x10), &hw->reg->TX_DSC_SIZE);
-}
-
-/**
- * pch_gbe_clean_rx_ring - Free Rx Buffers
- * @adapter: Board private structure
- * @rx_ring: Ring to free buffers from
- */
-static void
-pch_gbe_clean_rx_ring(struct pch_gbe_adapter *adapter,
- struct pch_gbe_rx_ring *rx_ring)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- struct pch_gbe_buffer *buffer_info;
- unsigned long size;
- unsigned int i;
-
- /* Free all the Rx ring sk_buffs */
- for (i = 0; i < rx_ring->count; i++) {
- buffer_info = &rx_ring->buffer_info[i];
- pch_gbe_unmap_and_free_rx_resource(adapter, buffer_info);
- }
- pr_debug("call pch_gbe_unmap_and_free_rx_resource() %d count\n", i);
- size = (unsigned long)sizeof(struct pch_gbe_buffer) * rx_ring->count;
- memset(rx_ring->buffer_info, 0, size);
-
- /* Zero out the descriptor ring */
- memset(rx_ring->desc, 0, rx_ring->size);
- rx_ring->next_to_clean = 0;
- rx_ring->next_to_use = 0;
- iowrite32(rx_ring->dma, &hw->reg->RX_DSC_HW_P);
- iowrite32((rx_ring->size - 0x10), &hw->reg->RX_DSC_SIZE);
-}
-
-static void pch_gbe_set_rgmii_ctrl(struct pch_gbe_adapter *adapter, u16 speed,
- u16 duplex)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- unsigned long rgmii = 0;
-
- /* Set the RGMII control. */
-#ifdef PCH_GBE_MAC_IFOP_RGMII
- switch (speed) {
- case SPEED_10:
- rgmii = (PCH_GBE_RGMII_RATE_2_5M |
- PCH_GBE_MAC_RGMII_CTRL_SETTING);
- break;
- case SPEED_100:
- rgmii = (PCH_GBE_RGMII_RATE_25M |
- PCH_GBE_MAC_RGMII_CTRL_SETTING);
- break;
- case SPEED_1000:
- rgmii = (PCH_GBE_RGMII_RATE_125M |
- PCH_GBE_MAC_RGMII_CTRL_SETTING);
- break;
- }
- iowrite32(rgmii, &hw->reg->RGMII_CTRL);
-#else /* GMII */
- rgmii = 0;
- iowrite32(rgmii, &hw->reg->RGMII_CTRL);
-#endif
-}
-static void pch_gbe_set_mode(struct pch_gbe_adapter *adapter, u16 speed,
- u16 duplex)
-{
- struct net_device *netdev = adapter->netdev;
- struct pch_gbe_hw *hw = &adapter->hw;
- unsigned long mode = 0;
-
- /* Set the communication mode */
- switch (speed) {
- case SPEED_10:
- mode = PCH_GBE_MODE_MII_ETHER;
- netdev->tx_queue_len = 10;
- break;
- case SPEED_100:
- mode = PCH_GBE_MODE_MII_ETHER;
- netdev->tx_queue_len = 100;
- break;
- case SPEED_1000:
- mode = PCH_GBE_MODE_GMII_ETHER;
- break;
- }
- if (duplex == DUPLEX_FULL)
- mode |= PCH_GBE_MODE_FULL_DUPLEX;
- else
- mode |= PCH_GBE_MODE_HALF_DUPLEX;
- iowrite32(mode, &hw->reg->MODE);
-}
-
-/**
- * pch_gbe_watchdog - Watchdog process
- * @data: Board private structure
- */
-static void pch_gbe_watchdog(unsigned long data)
-{
- struct pch_gbe_adapter *adapter = (struct pch_gbe_adapter *)data;
- struct net_device *netdev = adapter->netdev;
- struct pch_gbe_hw *hw = &adapter->hw;
-
- pr_debug("right now = %ld\n", jiffies);
-
- pch_gbe_update_stats(adapter);
- if ((mii_link_ok(&adapter->mii)) && (!netif_carrier_ok(netdev))) {
- struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
- netdev->tx_queue_len = adapter->tx_queue_len;
- /* mii library handles link maintenance tasks */
- if (mii_ethtool_gset(&adapter->mii, &cmd)) {
- pr_err("ethtool get setting Error\n");
- mod_timer(&adapter->watchdog_timer,
- round_jiffies(jiffies +
- PCH_GBE_WATCHDOG_PERIOD));
- return;
- }
- hw->mac.link_speed = ethtool_cmd_speed(&cmd);
- hw->mac.link_duplex = cmd.duplex;
- /* Set the RGMII control. */
- pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
- hw->mac.link_duplex);
- /* Set the communication mode */
- pch_gbe_set_mode(adapter, hw->mac.link_speed,
- hw->mac.link_duplex);
- netdev_dbg(netdev,
- "Link is Up %d Mbps %s-Duplex\n",
- hw->mac.link_speed,
- cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
- netif_carrier_on(netdev);
- netif_wake_queue(netdev);
- } else if ((!mii_link_ok(&adapter->mii)) &&
- (netif_carrier_ok(netdev))) {
- netdev_dbg(netdev, "NIC Link is Down\n");
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_HALF;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- mod_timer(&adapter->watchdog_timer,
- round_jiffies(jiffies + PCH_GBE_WATCHDOG_PERIOD));
-}
-
-/**
- * pch_gbe_tx_queue - Carry out queuing of the transmission data
- * @adapter: Board private structure
- * @tx_ring: Tx descriptor ring structure
- * @skb: Sockt buffer structure
- */
-static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring,
- struct sk_buff *skb)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- struct pch_gbe_tx_desc *tx_desc;
- struct pch_gbe_buffer *buffer_info;
- struct sk_buff *tmp_skb;
- unsigned int frame_ctrl;
- unsigned int ring_num;
- unsigned long flags;
-
- /*-- Set frame control --*/
- frame_ctrl = 0;
- if (unlikely(skb->len < PCH_GBE_SHORT_PKT))
- frame_ctrl |= PCH_GBE_TXD_CTRL_APAD;
- if (skb->ip_summed == CHECKSUM_NONE)
- frame_ctrl |= PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
-
- /* Performs checksum processing */
- /*
- * It is because the hardware accelerator does not support a checksum,
- * when the received data size is less than 64 bytes.
- */
- if (skb->len < PCH_GBE_SHORT_PKT && skb->ip_summed != CHECKSUM_NONE) {
- frame_ctrl |= PCH_GBE_TXD_CTRL_APAD |
- PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF;
- if (skb->protocol == htons(ETH_P_IP)) {
- struct iphdr *iph = ip_hdr(skb);
- unsigned int offset;
- iph->check = 0;
- iph->check = ip_fast_csum((u8 *) iph, iph->ihl);
- offset = skb_transport_offset(skb);
- if (iph->protocol == IPPROTO_TCP) {
- skb->csum = 0;
- tcp_hdr(skb)->check = 0;
- skb->csum = skb_checksum(skb, offset,
- skb->len - offset, 0);
- tcp_hdr(skb)->check =
- csum_tcpudp_magic(iph->saddr,
- iph->daddr,
- skb->len - offset,
- IPPROTO_TCP,
- skb->csum);
- } else if (iph->protocol == IPPROTO_UDP) {
- skb->csum = 0;
- udp_hdr(skb)->check = 0;
- skb->csum =
- skb_checksum(skb, offset,
- skb->len - offset, 0);
- udp_hdr(skb)->check =
- csum_tcpudp_magic(iph->saddr,
- iph->daddr,
- skb->len - offset,
- IPPROTO_UDP,
- skb->csum);
- }
- }
- }
- spin_lock_irqsave(&tx_ring->tx_lock, flags);
- ring_num = tx_ring->next_to_use;
- if (unlikely((ring_num + 1) == tx_ring->count))
- tx_ring->next_to_use = 0;
- else
- tx_ring->next_to_use = ring_num + 1;
-
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- buffer_info = &tx_ring->buffer_info[ring_num];
- tmp_skb = buffer_info->skb;
-
- /* [Header:14][payload] ---> [Header:14][paddong:2][payload] */
- memcpy(tmp_skb->data, skb->data, ETH_HLEN);
- tmp_skb->data[ETH_HLEN] = 0x00;
- tmp_skb->data[ETH_HLEN + 1] = 0x00;
- tmp_skb->len = skb->len;
- memcpy(&tmp_skb->data[ETH_HLEN + 2], &skb->data[ETH_HLEN],
- (skb->len - ETH_HLEN));
- /*-- Set Buffer information --*/
- buffer_info->length = tmp_skb->len;
- buffer_info->dma = dma_map_single(&adapter->pdev->dev, tmp_skb->data,
- buffer_info->length,
- DMA_TO_DEVICE);
- if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
- pr_err("TX DMA map failed\n");
- buffer_info->dma = 0;
- buffer_info->time_stamp = 0;
- tx_ring->next_to_use = ring_num;
- return;
- }
- buffer_info->mapped = true;
- buffer_info->time_stamp = jiffies;
-
- /*-- Set Tx descriptor --*/
- tx_desc = PCH_GBE_TX_DESC(*tx_ring, ring_num);
- tx_desc->buffer_addr = (buffer_info->dma);
- tx_desc->length = (tmp_skb->len);
- tx_desc->tx_words_eob = ((tmp_skb->len + 3));
- tx_desc->tx_frame_ctrl = (frame_ctrl);
- tx_desc->gbec_status = (DSC_INIT16);
-
- if (unlikely(++ring_num == tx_ring->count))
- ring_num = 0;
-
- /* Update software pointer of TX descriptor */
- iowrite32(tx_ring->dma +
- (int)sizeof(struct pch_gbe_tx_desc) * ring_num,
- &hw->reg->TX_DSC_SW_P);
- dev_kfree_skb_any(skb);
-}
-
-/**
- * pch_gbe_update_stats - Update the board statistics counters
- * @adapter: Board private structure
- */
-void pch_gbe_update_stats(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
- struct pch_gbe_hw_stats *stats = &adapter->stats;
- unsigned long flags;
-
- /*
- * Prevent stats update while adapter is being reset, or if the pci
- * connection is down.
- */
- if ((pdev->error_state) && (pdev->error_state != pci_channel_io_normal))
- return;
-
- spin_lock_irqsave(&adapter->stats_lock, flags);
-
- /* Update device status "adapter->stats" */
- stats->rx_errors = stats->rx_crc_errors + stats->rx_frame_errors;
- stats->tx_errors = stats->tx_length_errors +
- stats->tx_aborted_errors +
- stats->tx_carrier_errors + stats->tx_timeout_count;
-
- /* Update network device status "adapter->net_stats" */
- netdev->stats.rx_packets = stats->rx_packets;
- netdev->stats.rx_bytes = stats->rx_bytes;
- netdev->stats.rx_dropped = stats->rx_dropped;
- netdev->stats.tx_packets = stats->tx_packets;
- netdev->stats.tx_bytes = stats->tx_bytes;
- netdev->stats.tx_dropped = stats->tx_dropped;
- /* Fill out the OS statistics structure */
- netdev->stats.multicast = stats->multicast;
- netdev->stats.collisions = stats->collisions;
- /* Rx Errors */
- netdev->stats.rx_errors = stats->rx_errors;
- netdev->stats.rx_crc_errors = stats->rx_crc_errors;
- netdev->stats.rx_frame_errors = stats->rx_frame_errors;
- /* Tx Errors */
- netdev->stats.tx_errors = stats->tx_errors;
- netdev->stats.tx_aborted_errors = stats->tx_aborted_errors;
- netdev->stats.tx_carrier_errors = stats->tx_carrier_errors;
-
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
-}
-
-/**
- * pch_gbe_intr - Interrupt Handler
- * @irq: Interrupt number
- * @data: Pointer to a network interface device structure
- * Returns
- * - IRQ_HANDLED: Our interrupt
- * - IRQ_NONE: Not our interrupt
- */
-static irqreturn_t pch_gbe_intr(int irq, void *data)
-{
- struct net_device *netdev = data;
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 int_st;
- u32 int_en;
-
- /* Check request status */
- int_st = ioread32(&hw->reg->INT_ST);
- int_st = int_st & ioread32(&hw->reg->INT_EN);
- /* When request status is no interruption factor */
- if (unlikely(!int_st))
- return IRQ_NONE; /* Not our interrupt. End processing. */
- pr_debug("%s occur int_st = 0x%08x\n", __func__, int_st);
- if (int_st & PCH_GBE_INT_RX_FRAME_ERR)
- adapter->stats.intr_rx_frame_err_count++;
- if (int_st & PCH_GBE_INT_RX_FIFO_ERR)
- adapter->stats.intr_rx_fifo_err_count++;
- if (int_st & PCH_GBE_INT_RX_DMA_ERR)
- adapter->stats.intr_rx_dma_err_count++;
- if (int_st & PCH_GBE_INT_TX_FIFO_ERR)
- adapter->stats.intr_tx_fifo_err_count++;
- if (int_st & PCH_GBE_INT_TX_DMA_ERR)
- adapter->stats.intr_tx_dma_err_count++;
- if (int_st & PCH_GBE_INT_TCPIP_ERR)
- adapter->stats.intr_tcpip_err_count++;
- /* When Rx descriptor is empty */
- if ((int_st & PCH_GBE_INT_RX_DSC_EMP)) {
- adapter->stats.intr_rx_dsc_empty_count++;
- pr_err("Rx descriptor is empty\n");
- int_en = ioread32(&hw->reg->INT_EN);
- iowrite32((int_en & ~PCH_GBE_INT_RX_DSC_EMP), &hw->reg->INT_EN);
- if (hw->mac.tx_fc_enable) {
- /* Set Pause packet */
- pch_gbe_mac_set_pause_packet(hw);
- }
- if ((int_en & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))
- == 0) {
- return IRQ_HANDLED;
- }
- }
-
- /* When request status is Receive interruption */
- if ((int_st & (PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT))) {
- if (likely(napi_schedule_prep(&adapter->napi))) {
- /* Enable only Rx Descriptor empty */
- atomic_inc(&adapter->irq_sem);
- int_en = ioread32(&hw->reg->INT_EN);
- int_en &=
- ~(PCH_GBE_INT_RX_DMA_CMPLT | PCH_GBE_INT_TX_CMPLT);
- iowrite32(int_en, &hw->reg->INT_EN);
- /* Start polling for NAPI */
- __napi_schedule(&adapter->napi);
- }
- }
- pr_debug("return = 0x%08x INT_EN reg = 0x%08x\n",
- IRQ_HANDLED, ioread32(&hw->reg->INT_EN));
- return IRQ_HANDLED;
-}
-
-/**
- * pch_gbe_alloc_rx_buffers - Replace used receive buffers; legacy & extended
- * @adapter: Board private structure
- * @rx_ring: Rx descriptor ring
- * @cleaned_count: Cleaned count
- */
-static void
-pch_gbe_alloc_rx_buffers(struct pch_gbe_adapter *adapter,
- struct pch_gbe_rx_ring *rx_ring, int cleaned_count)
-{
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
- struct pch_gbe_hw *hw = &adapter->hw;
- struct pch_gbe_rx_desc *rx_desc;
- struct pch_gbe_buffer *buffer_info;
- struct sk_buff *skb;
- unsigned int i;
- unsigned int bufsz;
-
- bufsz = adapter->rx_buffer_len + PCH_GBE_DMA_ALIGN;
- i = rx_ring->next_to_use;
-
- while ((cleaned_count--)) {
- buffer_info = &rx_ring->buffer_info[i];
- skb = buffer_info->skb;
- if (skb) {
- skb_trim(skb, 0);
- } else {
- skb = netdev_alloc_skb(netdev, bufsz);
- if (unlikely(!skb)) {
- /* Better luck next round */
- adapter->stats.rx_alloc_buff_failed++;
- break;
- }
- /* 64byte align */
- skb_reserve(skb, PCH_GBE_DMA_ALIGN);
-
- buffer_info->skb = skb;
- buffer_info->length = adapter->rx_buffer_len;
- }
- buffer_info->dma = dma_map_single(&pdev->dev,
- skb->data,
- buffer_info->length,
- DMA_FROM_DEVICE);
- if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
- dev_kfree_skb(skb);
- buffer_info->skb = NULL;
- buffer_info->dma = 0;
- adapter->stats.rx_alloc_buff_failed++;
- break; /* while !buffer_info->skb */
- }
- buffer_info->mapped = true;
- rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
- rx_desc->buffer_addr = (buffer_info->dma);
- rx_desc->gbec_status = DSC_INIT16;
-
- pr_debug("i = %d buffer_info->dma = 0x08%llx buffer_info->length = 0x%x\n",
- i, (unsigned long long)buffer_info->dma,
- buffer_info->length);
-
- if (unlikely(++i == rx_ring->count))
- i = 0;
- }
- if (likely(rx_ring->next_to_use != i)) {
- rx_ring->next_to_use = i;
- if (unlikely(i-- == 0))
- i = (rx_ring->count - 1);
- iowrite32(rx_ring->dma +
- (int)sizeof(struct pch_gbe_rx_desc) * i,
- &hw->reg->RX_DSC_SW_P);
- }
- return;
-}
-
-/**
- * pch_gbe_alloc_tx_buffers - Allocate transmit buffers
- * @adapter: Board private structure
- * @tx_ring: Tx descriptor ring
- */
-static void pch_gbe_alloc_tx_buffers(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring)
-{
- struct pch_gbe_buffer *buffer_info;
- struct sk_buff *skb;
- unsigned int i;
- unsigned int bufsz;
- struct pch_gbe_tx_desc *tx_desc;
-
- bufsz =
- adapter->hw.mac.max_frame_size + PCH_GBE_DMA_ALIGN + NET_IP_ALIGN;
-
- for (i = 0; i < tx_ring->count; i++) {
- buffer_info = &tx_ring->buffer_info[i];
- skb = netdev_alloc_skb(adapter->netdev, bufsz);
- skb_reserve(skb, PCH_GBE_DMA_ALIGN);
- buffer_info->skb = skb;
- tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
- tx_desc->gbec_status = (DSC_INIT16);
- }
- return;
-}
-
-/**
- * pch_gbe_clean_tx - Reclaim resources after transmit completes
- * @adapter: Board private structure
- * @tx_ring: Tx descriptor ring
- * Returns
- * true: Cleaned the descriptor
- * false: Not cleaned the descriptor
- */
-static bool
-pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring)
-{
- struct pch_gbe_tx_desc *tx_desc;
- struct pch_gbe_buffer *buffer_info;
- struct sk_buff *skb;
- unsigned int i;
- unsigned int cleaned_count = 0;
- bool cleaned = false;
-
- pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
-
- i = tx_ring->next_to_clean;
- tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
- pr_debug("gbec_status:0x%04x dma_status:0x%04x\n",
- tx_desc->gbec_status, tx_desc->dma_status);
-
- while ((tx_desc->gbec_status & DSC_INIT16) == 0x0000) {
- pr_debug("gbec_status:0x%04x\n", tx_desc->gbec_status);
- cleaned = true;
- buffer_info = &tx_ring->buffer_info[i];
- skb = buffer_info->skb;
-
- if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_ABT)) {
- adapter->stats.tx_aborted_errors++;
- pr_err("Transfer Abort Error\n");
- } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CRSER)
- ) {
- adapter->stats.tx_carrier_errors++;
- pr_err("Transfer Carrier Sense Error\n");
- } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_EXCOL)
- ) {
- adapter->stats.tx_aborted_errors++;
- pr_err("Transfer Collision Abort Error\n");
- } else if ((tx_desc->gbec_status &
- (PCH_GBE_TXD_GMAC_STAT_SNGCOL |
- PCH_GBE_TXD_GMAC_STAT_MLTCOL))) {
- adapter->stats.collisions++;
- adapter->stats.tx_packets++;
- adapter->stats.tx_bytes += skb->len;
- pr_debug("Transfer Collision\n");
- } else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CMPLT)
- ) {
- adapter->stats.tx_packets++;
- adapter->stats.tx_bytes += skb->len;
- }
- if (buffer_info->mapped) {
- pr_debug("unmap buffer_info->dma : %d\n", i);
- dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
- buffer_info->length, DMA_TO_DEVICE);
- buffer_info->mapped = false;
- }
- if (buffer_info->skb) {
- pr_debug("trim buffer_info->skb : %d\n", i);
- skb_trim(buffer_info->skb, 0);
- }
- tx_desc->gbec_status = DSC_INIT16;
- if (unlikely(++i == tx_ring->count))
- i = 0;
- tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
-
- /* weight of a sort for tx, to avoid endless transmit cleanup */
- if (cleaned_count++ == PCH_GBE_TX_WEIGHT)
- break;
- }
- pr_debug("called pch_gbe_unmap_and_free_tx_resource() %d count\n",
- cleaned_count);
- /* Recover from running out of Tx resources in xmit_frame */
- if (unlikely(cleaned && (netif_queue_stopped(adapter->netdev)))) {
- netif_wake_queue(adapter->netdev);
- adapter->stats.tx_restart_count++;
- pr_debug("Tx wake queue\n");
- }
- spin_lock(&adapter->tx_queue_lock);
- tx_ring->next_to_clean = i;
- spin_unlock(&adapter->tx_queue_lock);
- pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
- return cleaned;
-}
-
-/**
- * pch_gbe_clean_rx - Send received data up the network stack; legacy
- * @adapter: Board private structure
- * @rx_ring: Rx descriptor ring
- * @work_done: Completed count
- * @work_to_do: Request count
- * Returns
- * true: Cleaned the descriptor
- * false: Not cleaned the descriptor
- */
-static bool
-pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
- struct pch_gbe_rx_ring *rx_ring,
- int *work_done, int work_to_do)
-{
- struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
- struct pch_gbe_buffer *buffer_info;
- struct pch_gbe_rx_desc *rx_desc;
- u32 length;
- unsigned int i;
- unsigned int cleaned_count = 0;
- bool cleaned = false;
- struct sk_buff *skb, *new_skb;
- u8 dma_status;
- u16 gbec_status;
- u32 tcp_ip_status;
-
- i = rx_ring->next_to_clean;
-
- while (*work_done < work_to_do) {
- /* Check Rx descriptor status */
- rx_desc = PCH_GBE_RX_DESC(*rx_ring, i);
- if (rx_desc->gbec_status == DSC_INIT16)
- break;
- cleaned = true;
- cleaned_count++;
-
- dma_status = rx_desc->dma_status;
- gbec_status = rx_desc->gbec_status;
- tcp_ip_status = rx_desc->tcp_ip_status;
- rx_desc->gbec_status = DSC_INIT16;
- buffer_info = &rx_ring->buffer_info[i];
- skb = buffer_info->skb;
-
- /* unmap dma */
- dma_unmap_single(&pdev->dev, buffer_info->dma,
- buffer_info->length, DMA_FROM_DEVICE);
- buffer_info->mapped = false;
- /* Prefetch the packet */
- prefetch(skb->data);
-
- pr_debug("RxDecNo = 0x%04x Status[DMA:0x%02x GBE:0x%04x "
- "TCP:0x%08x] BufInf = 0x%p\n",
- i, dma_status, gbec_status, tcp_ip_status,
- buffer_info);
- /* Error check */
- if (unlikely(gbec_status & PCH_GBE_RXD_GMAC_STAT_NOTOCTAL)) {
- adapter->stats.rx_frame_errors++;
- pr_err("Receive Not Octal Error\n");
- } else if (unlikely(gbec_status &
- PCH_GBE_RXD_GMAC_STAT_NBLERR)) {
- adapter->stats.rx_frame_errors++;
- pr_err("Receive Nibble Error\n");
- } else if (unlikely(gbec_status &
- PCH_GBE_RXD_GMAC_STAT_CRCERR)) {
- adapter->stats.rx_crc_errors++;
- pr_err("Receive CRC Error\n");
- } else {
- /* get receive length */
- /* length convert[-3] */
- length = (rx_desc->rx_words_eob) - 3;
-
- /* Decide the data conversion method */
- if (!(netdev->features & NETIF_F_RXCSUM)) {
- /* [Header:14][payload] */
- if (NET_IP_ALIGN) {
- /* Because alignment differs,
- * the new_skb is newly allocated,
- * and data is copied to new_skb.*/
- new_skb = netdev_alloc_skb(netdev,
- length + NET_IP_ALIGN);
- if (!new_skb) {
- /* dorrop error */
- pr_err("New skb allocation "
- "Error\n");
- goto dorrop;
- }
- skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data, skb->data,
- length);
- skb = new_skb;
- } else {
- /* DMA buffer is used as SKB as it is.*/
- buffer_info->skb = NULL;
- }
- } else {
- /* [Header:14][padding:2][payload] */
- /* The length includes padding length */
- length = length - PCH_GBE_DMA_PADDING;
- if ((length < copybreak) ||
- (NET_IP_ALIGN != PCH_GBE_DMA_PADDING)) {
- /* Because alignment differs,
- * the new_skb is newly allocated,
- * and data is copied to new_skb.
- * Padding data is deleted
- * at the time of a copy.*/
- new_skb = netdev_alloc_skb(netdev,
- length + NET_IP_ALIGN);
- if (!new_skb) {
- /* dorrop error */
- pr_err("New skb allocation "
- "Error\n");
- goto dorrop;
- }
- skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data, skb->data,
- ETH_HLEN);
- memcpy(&new_skb->data[ETH_HLEN],
- &skb->data[ETH_HLEN +
- PCH_GBE_DMA_PADDING],
- length - ETH_HLEN);
- skb = new_skb;
- } else {
- /* Padding data is deleted
- * by moving header data.*/
- memmove(&skb->data[PCH_GBE_DMA_PADDING],
- &skb->data[0], ETH_HLEN);
- skb_reserve(skb, NET_IP_ALIGN);
- buffer_info->skb = NULL;
- }
- }
- /* The length includes FCS length */
- length = length - ETH_FCS_LEN;
- /* update status of driver */
- adapter->stats.rx_bytes += length;
- adapter->stats.rx_packets++;
- if ((gbec_status & PCH_GBE_RXD_GMAC_STAT_MARMLT))
- adapter->stats.multicast++;
- /* Write meta date of skb */
- skb_put(skb, length);
- skb->protocol = eth_type_trans(skb, netdev);
- if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK)
- skb->ip_summed = CHECKSUM_NONE;
- else
- skb->ip_summed = CHECKSUM_UNNECESSARY;
-
- napi_gro_receive(&adapter->napi, skb);
- (*work_done)++;
- pr_debug("Receive skb->ip_summed: %d length: %d\n",
- skb->ip_summed, length);
- }
-dorrop:
- /* return some buffers to hardware, one at a time is too slow */
- if (unlikely(cleaned_count >= PCH_GBE_RX_BUFFER_WRITE)) {
- pch_gbe_alloc_rx_buffers(adapter, rx_ring,
- cleaned_count);
- cleaned_count = 0;
- }
- if (++i == rx_ring->count)
- i = 0;
- }
- rx_ring->next_to_clean = i;
- if (cleaned_count)
- pch_gbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
- return cleaned;
-}
-
-/**
- * pch_gbe_setup_tx_resources - Allocate Tx resources (Descriptors)
- * @adapter: Board private structure
- * @tx_ring: Tx descriptor ring (for a specific queue) to setup
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
- struct pch_gbe_tx_desc *tx_desc;
- int size;
- int desNo;
-
- size = (int)sizeof(struct pch_gbe_buffer) * tx_ring->count;
- tx_ring->buffer_info = vzalloc(size);
- if (!tx_ring->buffer_info) {
- pr_err("Unable to allocate memory for the buffer information\n");
- return -ENOMEM;
- }
-
- tx_ring->size = tx_ring->count * (int)sizeof(struct pch_gbe_tx_desc);
-
- tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
- &tx_ring->dma, GFP_KERNEL);
- if (!tx_ring->desc) {
- vfree(tx_ring->buffer_info);
- pr_err("Unable to allocate memory for the transmit descriptor ring\n");
- return -ENOMEM;
- }
- memset(tx_ring->desc, 0, tx_ring->size);
-
- tx_ring->next_to_use = 0;
- tx_ring->next_to_clean = 0;
- spin_lock_init(&tx_ring->tx_lock);
-
- for (desNo = 0; desNo < tx_ring->count; desNo++) {
- tx_desc = PCH_GBE_TX_DESC(*tx_ring, desNo);
- tx_desc->gbec_status = DSC_INIT16;
- }
- pr_debug("tx_ring->desc = 0x%p tx_ring->dma = 0x%08llx\n"
- "next_to_clean = 0x%08x next_to_use = 0x%08x\n",
- tx_ring->desc, (unsigned long long)tx_ring->dma,
- tx_ring->next_to_clean, tx_ring->next_to_use);
- return 0;
-}
-
-/**
- * pch_gbe_setup_rx_resources - Allocate Rx resources (Descriptors)
- * @adapter: Board private structure
- * @rx_ring: Rx descriptor ring (for a specific queue) to setup
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
- struct pch_gbe_rx_ring *rx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
- struct pch_gbe_rx_desc *rx_desc;
- int size;
- int desNo;
-
- size = (int)sizeof(struct pch_gbe_buffer) * rx_ring->count;
- rx_ring->buffer_info = vzalloc(size);
- if (!rx_ring->buffer_info) {
- pr_err("Unable to allocate memory for the receive descriptor ring\n");
- return -ENOMEM;
- }
- rx_ring->size = rx_ring->count * (int)sizeof(struct pch_gbe_rx_desc);
- rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
- &rx_ring->dma, GFP_KERNEL);
-
- if (!rx_ring->desc) {
- pr_err("Unable to allocate memory for the receive descriptor ring\n");
- vfree(rx_ring->buffer_info);
- return -ENOMEM;
- }
- memset(rx_ring->desc, 0, rx_ring->size);
- rx_ring->next_to_clean = 0;
- rx_ring->next_to_use = 0;
- for (desNo = 0; desNo < rx_ring->count; desNo++) {
- rx_desc = PCH_GBE_RX_DESC(*rx_ring, desNo);
- rx_desc->gbec_status = DSC_INIT16;
- }
- pr_debug("rx_ring->desc = 0x%p rx_ring->dma = 0x%08llx "
- "next_to_clean = 0x%08x next_to_use = 0x%08x\n",
- rx_ring->desc, (unsigned long long)rx_ring->dma,
- rx_ring->next_to_clean, rx_ring->next_to_use);
- return 0;
-}
-
-/**
- * pch_gbe_free_tx_resources - Free Tx Resources
- * @adapter: Board private structure
- * @tx_ring: Tx descriptor ring for a specific queue
- */
-void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
- struct pch_gbe_tx_ring *tx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
-
- pch_gbe_clean_tx_ring(adapter, tx_ring);
- vfree(tx_ring->buffer_info);
- tx_ring->buffer_info = NULL;
- pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
- tx_ring->desc = NULL;
-}
-
-/**
- * pch_gbe_free_rx_resources - Free Rx Resources
- * @adapter: Board private structure
- * @rx_ring: Ring to clean the resources from
- */
-void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
- struct pch_gbe_rx_ring *rx_ring)
-{
- struct pci_dev *pdev = adapter->pdev;
-
- pch_gbe_clean_rx_ring(adapter, rx_ring);
- vfree(rx_ring->buffer_info);
- rx_ring->buffer_info = NULL;
- pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
- rx_ring->desc = NULL;
-}
-
-/**
- * pch_gbe_request_irq - Allocate an interrupt line
- * @adapter: Board private structure
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_request_irq(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- int err;
- int flags;
-
- flags = IRQF_SHARED;
- adapter->have_msi = false;
- err = pci_enable_msi(adapter->pdev);
- pr_debug("call pci_enable_msi\n");
- if (err) {
- pr_debug("call pci_enable_msi - Error: %d\n", err);
- } else {
- flags = 0;
- adapter->have_msi = true;
- }
- err = request_irq(adapter->pdev->irq, &pch_gbe_intr,
- flags, netdev->name, netdev);
- if (err)
- pr_err("Unable to allocate interrupt Error: %d\n", err);
- pr_debug("adapter->have_msi : %d flags : 0x%04x return : 0x%04x\n",
- adapter->have_msi, flags, err);
- return err;
-}
-
-
-static void pch_gbe_set_multi(struct net_device *netdev);
-/**
- * pch_gbe_up - Up GbE network device
- * @adapter: Board private structure
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-int pch_gbe_up(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
- struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
- int err;
-
- /* hardware has been reset, we need to reload some things */
- pch_gbe_set_multi(netdev);
-
- pch_gbe_setup_tctl(adapter);
- pch_gbe_configure_tx(adapter);
- pch_gbe_setup_rctl(adapter);
- pch_gbe_configure_rx(adapter);
-
- err = pch_gbe_request_irq(adapter);
- if (err) {
- pr_err("Error: can't bring device up\n");
- return err;
- }
- pch_gbe_alloc_tx_buffers(adapter, tx_ring);
- pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count);
- adapter->tx_queue_len = netdev->tx_queue_len;
-
- mod_timer(&adapter->watchdog_timer, jiffies);
-
- napi_enable(&adapter->napi);
- pch_gbe_irq_enable(adapter);
- netif_start_queue(adapter->netdev);
-
- return 0;
-}
-
-/**
- * pch_gbe_down - Down GbE network device
- * @adapter: Board private structure
- */
-void pch_gbe_down(struct pch_gbe_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- /* signal that we're down so the interrupt handler does not
- * reschedule our watchdog timer */
- napi_disable(&adapter->napi);
- atomic_set(&adapter->irq_sem, 0);
-
- pch_gbe_irq_disable(adapter);
- pch_gbe_free_irq(adapter);
-
- del_timer_sync(&adapter->watchdog_timer);
-
- netdev->tx_queue_len = adapter->tx_queue_len;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- pch_gbe_reset(adapter);
- pch_gbe_clean_tx_ring(adapter, adapter->tx_ring);
- pch_gbe_clean_rx_ring(adapter, adapter->rx_ring);
-}
-
-/**
- * pch_gbe_sw_init - Initialize general software structures (struct pch_gbe_adapter)
- * @adapter: Board private structure to initialize
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_sw_init(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
-
- adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
- hw->mac.max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
- hw->mac.min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
-
- /* Initialize the hardware-specific values */
- if (pch_gbe_hal_setup_init_funcs(hw)) {
- pr_err("Hardware Initialization Failure\n");
- return -EIO;
- }
- if (pch_gbe_alloc_queues(adapter)) {
- pr_err("Unable to allocate memory for queues\n");
- return -ENOMEM;
- }
- spin_lock_init(&adapter->hw.miim_lock);
- spin_lock_init(&adapter->tx_queue_lock);
- spin_lock_init(&adapter->stats_lock);
- spin_lock_init(&adapter->ethtool_lock);
- atomic_set(&adapter->irq_sem, 0);
- pch_gbe_irq_disable(adapter);
-
- pch_gbe_init_stats(adapter);
-
- pr_debug("rx_buffer_len : %d mac.min_frame_size : %d mac.max_frame_size : %d\n",
- (u32) adapter->rx_buffer_len,
- hw->mac.min_frame_size, hw->mac.max_frame_size);
- return 0;
-}
-
-/**
- * pch_gbe_open - Called when a network interface is made active
- * @netdev: Network interface device structure
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_open(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- int err;
-
- /* allocate transmit descriptors */
- err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
- if (err)
- goto err_setup_tx;
- /* allocate receive descriptors */
- err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
- if (err)
- goto err_setup_rx;
- pch_gbe_hal_power_up_phy(hw);
- err = pch_gbe_up(adapter);
- if (err)
- goto err_up;
- pr_debug("Success End\n");
- return 0;
-
-err_up:
- if (!adapter->wake_up_evt)
- pch_gbe_hal_power_down_phy(hw);
- pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
-err_setup_rx:
- pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
-err_setup_tx:
- pch_gbe_reset(adapter);
- pr_err("Error End\n");
- return err;
-}
-
-/**
- * pch_gbe_stop - Disables a network interface
- * @netdev: Network interface device structure
- * Returns
- * 0: Successfully
- */
-static int pch_gbe_stop(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
-
- pch_gbe_down(adapter);
- if (!adapter->wake_up_evt)
- pch_gbe_hal_power_down_phy(hw);
- pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
- pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
- return 0;
-}
-
-/**
- * pch_gbe_xmit_frame - Packet transmitting start
- * @skb: Socket buffer structure
- * @netdev: Network interface device structure
- * Returns
- * - NETDEV_TX_OK: Normal end
- * - NETDEV_TX_BUSY: Error end
- */
-static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
- unsigned long flags;
-
- if (unlikely(skb->len > (adapter->hw.mac.max_frame_size - 4))) {
- pr_err("Transfer length Error: skb len: %d > max: %d\n",
- skb->len, adapter->hw.mac.max_frame_size);
- dev_kfree_skb_any(skb);
- adapter->stats.tx_length_errors++;
- return NETDEV_TX_OK;
- }
- if (!spin_trylock_irqsave(&tx_ring->tx_lock, flags)) {
- /* Collision - tell upper layer to requeue */
- return NETDEV_TX_LOCKED;
- }
- if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring))) {
- netif_stop_queue(netdev);
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
- pr_debug("Return : BUSY next_to use : 0x%08x next_to clean : 0x%08x\n",
- tx_ring->next_to_use, tx_ring->next_to_clean);
- return NETDEV_TX_BUSY;
- }
- spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
-
- /* CRC,ITAG no support */
- pch_gbe_tx_queue(adapter, tx_ring, skb);
- return NETDEV_TX_OK;
-}
-
-/**
- * pch_gbe_get_stats - Get System Network Statistics
- * @netdev: Network interface device structure
- * Returns: The current stats
- */
-static struct net_device_stats *pch_gbe_get_stats(struct net_device *netdev)
-{
- /* only return the current stats */
- return &netdev->stats;
-}
-
-/**
- * pch_gbe_set_multi - Multicast and Promiscuous mode set
- * @netdev: Network interface device structure
- */
-static void pch_gbe_set_multi(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- struct netdev_hw_addr *ha;
- u8 *mta_list;
- u32 rctl;
- int i;
- int mc_count;
-
- pr_debug("netdev->flags : 0x%08x\n", netdev->flags);
-
- /* Check for Promiscuous and All Multicast modes */
- rctl = ioread32(&hw->reg->RX_MODE);
- mc_count = netdev_mc_count(netdev);
- if ((netdev->flags & IFF_PROMISC)) {
- rctl &= ~PCH_GBE_ADD_FIL_EN;
- rctl &= ~PCH_GBE_MLT_FIL_EN;
- } else if ((netdev->flags & IFF_ALLMULTI)) {
- /* all the multicasting receive permissions */
- rctl |= PCH_GBE_ADD_FIL_EN;
- rctl &= ~PCH_GBE_MLT_FIL_EN;
- } else {
- if (mc_count >= PCH_GBE_MAR_ENTRIES) {
- /* all the multicasting receive permissions */
- rctl |= PCH_GBE_ADD_FIL_EN;
- rctl &= ~PCH_GBE_MLT_FIL_EN;
- } else {
- rctl |= (PCH_GBE_ADD_FIL_EN | PCH_GBE_MLT_FIL_EN);
- }
- }
- iowrite32(rctl, &hw->reg->RX_MODE);
-
- if (mc_count >= PCH_GBE_MAR_ENTRIES)
- return;
- mta_list = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
- if (!mta_list)
- return;
-
- /* The shared function expects a packed array of only addresses. */
- i = 0;
- netdev_for_each_mc_addr(ha, netdev) {
- if (i == mc_count)
- break;
- memcpy(mta_list + (i++ * ETH_ALEN), &ha->addr, ETH_ALEN);
- }
- pch_gbe_mac_mc_addr_list_update(hw, mta_list, i, 1,
- PCH_GBE_MAR_ENTRIES);
- kfree(mta_list);
-
- pr_debug("RX_MODE reg(check bit31,30 ADD,MLT) : 0x%08x netdev->mc_count : 0x%08x\n",
- ioread32(&hw->reg->RX_MODE), mc_count);
-}
-
-/**
- * pch_gbe_set_mac - Change the Ethernet Address of the NIC
- * @netdev: Network interface device structure
- * @addr: Pointer to an address structure
- * Returns
- * 0: Successfully
- * -EADDRNOTAVAIL: Failed
- */
-static int pch_gbe_set_mac(struct net_device *netdev, void *addr)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct sockaddr *skaddr = addr;
- int ret_val;
-
- if (!is_valid_ether_addr(skaddr->sa_data)) {
- ret_val = -EADDRNOTAVAIL;
- } else {
- memcpy(netdev->dev_addr, skaddr->sa_data, netdev->addr_len);
- memcpy(adapter->hw.mac.addr, skaddr->sa_data, netdev->addr_len);
- pch_gbe_mac_mar_set(&adapter->hw, adapter->hw.mac.addr, 0);
- ret_val = 0;
- }
- pr_debug("ret_val : 0x%08x\n", ret_val);
- pr_debug("dev_addr : %pM\n", netdev->dev_addr);
- pr_debug("mac_addr : %pM\n", adapter->hw.mac.addr);
- pr_debug("MAC_ADR1AB reg : 0x%08x 0x%08x\n",
- ioread32(&adapter->hw.reg->mac_adr[0].high),
- ioread32(&adapter->hw.reg->mac_adr[0].low));
- return ret_val;
-}
-
-/**
- * pch_gbe_change_mtu - Change the Maximum Transfer Unit
- * @netdev: Network interface device structure
- * @new_mtu: New value for maximum frame size
- * Returns
- * 0: Successfully
- * -EINVAL: Failed
- */
-static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- int max_frame;
-
- max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
- if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
- (max_frame > PCH_GBE_MAX_JUMBO_FRAME_SIZE)) {
- pr_err("Invalid MTU setting\n");
- return -EINVAL;
- }
- if (max_frame <= PCH_GBE_FRAME_SIZE_2048)
- adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048;
- else if (max_frame <= PCH_GBE_FRAME_SIZE_4096)
- adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_4096;
- else if (max_frame <= PCH_GBE_FRAME_SIZE_8192)
- adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_8192;
- else
- adapter->rx_buffer_len = PCH_GBE_MAX_JUMBO_FRAME_SIZE;
- netdev->mtu = new_mtu;
- adapter->hw.mac.max_frame_size = max_frame;
-
- if (netif_running(netdev))
- pch_gbe_reinit_locked(adapter);
- else
- pch_gbe_reset(adapter);
-
- pr_debug("max_frame : %d rx_buffer_len : %d mtu : %d max_frame_size : %d\n",
- max_frame, (u32) adapter->rx_buffer_len, netdev->mtu,
- adapter->hw.mac.max_frame_size);
- return 0;
-}
-
-/**
- * pch_gbe_set_features - Reset device after features changed
- * @netdev: Network interface device structure
- * @features: New features
- * Returns
- * 0: HW state updated successfully
- */
-static int pch_gbe_set_features(struct net_device *netdev, u32 features)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- u32 changed = features ^ netdev->features;
-
- if (!(changed & NETIF_F_RXCSUM))
- return 0;
-
- if (netif_running(netdev))
- pch_gbe_reinit_locked(adapter);
- else
- pch_gbe_reset(adapter);
-
- return 0;
-}
-
-/**
- * pch_gbe_ioctl - Controls register through a MII interface
- * @netdev: Network interface device structure
- * @ifr: Pointer to ifr structure
- * @cmd: Control command
- * Returns
- * 0: Successfully
- * Negative value: Failed
- */
-static int pch_gbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- pr_debug("cmd : 0x%04x\n", cmd);
-
- return generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
-}
-
-/**
- * pch_gbe_tx_timeout - Respond to a Tx Hang
- * @netdev: Network interface device structure
- */
-static void pch_gbe_tx_timeout(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- /* Do the reset outside of interrupt context */
- adapter->stats.tx_timeout_count++;
- schedule_work(&adapter->reset_task);
-}
-
-/**
- * pch_gbe_napi_poll - NAPI receive and transfer polling callback
- * @napi: Pointer of polling device struct
- * @budget: The maximum number of a packet
- * Returns
- * false: Exit the polling mode
- * true: Continue the polling mode
- */
-static int pch_gbe_napi_poll(struct napi_struct *napi, int budget)
-{
- struct pch_gbe_adapter *adapter =
- container_of(napi, struct pch_gbe_adapter, napi);
- struct net_device *netdev = adapter->netdev;
- int work_done = 0;
- bool poll_end_flag = false;
- bool cleaned = false;
-
- pr_debug("budget : %d\n", budget);
-
- /* Keep link state information with original netdev */
- if (!netif_carrier_ok(netdev)) {
- poll_end_flag = true;
- } else {
- cleaned = pch_gbe_clean_tx(adapter, adapter->tx_ring);
- pch_gbe_clean_rx(adapter, adapter->rx_ring, &work_done, budget);
-
- if (cleaned)
- work_done = budget;
- /* If no Tx and not enough Rx work done,
- * exit the polling mode
- */
- if ((work_done < budget) || !netif_running(netdev))
- poll_end_flag = true;
- }
-
- if (poll_end_flag) {
- napi_complete(napi);
- pch_gbe_irq_enable(adapter);
- }
-
- pr_debug("poll_end_flag : %d work_done : %d budget : %d\n",
- poll_end_flag, work_done, budget);
-
- return work_done;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/**
- * pch_gbe_netpoll - Used by things like netconsole to send skbs
- * @netdev: Network interface device structure
- */
-static void pch_gbe_netpoll(struct net_device *netdev)
-{
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- disable_irq(adapter->pdev->irq);
- pch_gbe_intr(adapter->pdev->irq, netdev);
- enable_irq(adapter->pdev->irq);
-}
-#endif
-
-static const struct net_device_ops pch_gbe_netdev_ops = {
- .ndo_open = pch_gbe_open,
- .ndo_stop = pch_gbe_stop,
- .ndo_start_xmit = pch_gbe_xmit_frame,
- .ndo_get_stats = pch_gbe_get_stats,
- .ndo_set_mac_address = pch_gbe_set_mac,
- .ndo_tx_timeout = pch_gbe_tx_timeout,
- .ndo_change_mtu = pch_gbe_change_mtu,
- .ndo_set_features = pch_gbe_set_features,
- .ndo_do_ioctl = pch_gbe_ioctl,
- .ndo_set_multicast_list = &pch_gbe_set_multi,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = pch_gbe_netpoll,
-#endif
-};
-
-static pci_ers_result_t pch_gbe_io_error_detected(struct pci_dev *pdev,
- pci_channel_state_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- netif_device_detach(netdev);
- if (netif_running(netdev))
- pch_gbe_down(adapter);
- pci_disable_device(pdev);
- /* Request a slot slot reset. */
- return PCI_ERS_RESULT_NEED_RESET;
-}
-
-static pci_ers_result_t pch_gbe_io_slot_reset(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
-
- if (pci_enable_device(pdev)) {
- pr_err("Cannot re-enable PCI device after reset\n");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_set_master(pdev);
- pci_enable_wake(pdev, PCI_D0, 0);
- pch_gbe_hal_power_up_phy(hw);
- pch_gbe_reset(adapter);
- /* Clear wake up status */
- pch_gbe_mac_set_wol_event(hw, 0);
-
- return PCI_ERS_RESULT_RECOVERED;
-}
-
-static void pch_gbe_io_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- if (netif_running(netdev)) {
- if (pch_gbe_up(adapter)) {
- pr_debug("can't bring device back up after reset\n");
- return;
- }
- }
- netif_device_attach(netdev);
-}
-
-static int __pch_gbe_suspend(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 wufc = adapter->wake_up_evt;
- int retval = 0;
-
- netif_device_detach(netdev);
- if (netif_running(netdev))
- pch_gbe_down(adapter);
- if (wufc) {
- pch_gbe_set_multi(netdev);
- pch_gbe_setup_rctl(adapter);
- pch_gbe_configure_rx(adapter);
- pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
- hw->mac.link_duplex);
- pch_gbe_set_mode(adapter, hw->mac.link_speed,
- hw->mac.link_duplex);
- pch_gbe_mac_set_wol_event(hw, wufc);
- pci_disable_device(pdev);
- } else {
- pch_gbe_hal_power_down_phy(hw);
- pch_gbe_mac_set_wol_event(hw, wufc);
- pci_disable_device(pdev);
- }
- return retval;
-}
-
-#ifdef CONFIG_PM
-static int pch_gbe_suspend(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
-
- return __pch_gbe_suspend(pdev);
-}
-
-static int pch_gbe_resume(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
- struct pch_gbe_hw *hw = &adapter->hw;
- u32 err;
-
- err = pci_enable_device(pdev);
- if (err) {
- pr_err("Cannot enable PCI device from suspend\n");
- return err;
- }
- pci_set_master(pdev);
- pch_gbe_hal_power_up_phy(hw);
- pch_gbe_reset(adapter);
- /* Clear wake on lan control and status */
- pch_gbe_mac_set_wol_event(hw, 0);
-
- if (netif_running(netdev))
- pch_gbe_up(adapter);
- netif_device_attach(netdev);
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static void pch_gbe_shutdown(struct pci_dev *pdev)
-{
- __pch_gbe_suspend(pdev);
- if (system_state == SYSTEM_POWER_OFF) {
- pci_wake_from_d3(pdev, true);
- pci_set_power_state(pdev, PCI_D3hot);
- }
-}
-
-static void pch_gbe_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct pch_gbe_adapter *adapter = netdev_priv(netdev);
-
- cancel_work_sync(&adapter->reset_task);
- unregister_netdev(netdev);
-
- pch_gbe_hal_phy_hw_reset(&adapter->hw);
-
- kfree(adapter->tx_ring);
- kfree(adapter->rx_ring);
-
- iounmap(adapter->hw.reg);
- pci_release_regions(pdev);
- free_netdev(netdev);
- pci_disable_device(pdev);
-}
-
-static int pch_gbe_probe(struct pci_dev *pdev,
- const struct pci_device_id *pci_id)
-{
- struct net_device *netdev;
- struct pch_gbe_adapter *adapter;
- int ret;
-
- ret = pci_enable_device(pdev);
- if (ret)
- return ret;
-
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
- || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
- ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (ret) {
- ret = pci_set_consistent_dma_mask(pdev,
- DMA_BIT_MASK(32));
- if (ret) {
- dev_err(&pdev->dev, "ERR: No usable DMA "
- "configuration, aborting\n");
- goto err_disable_device;
- }
- }
- }
-
- ret = pci_request_regions(pdev, KBUILD_MODNAME);
- if (ret) {
- dev_err(&pdev->dev,
- "ERR: Can't reserve PCI I/O and memory resources\n");
- goto err_disable_device;
- }
- pci_set_master(pdev);
-
- netdev = alloc_etherdev((int)sizeof(struct pch_gbe_adapter));
- if (!netdev) {
- ret = -ENOMEM;
- dev_err(&pdev->dev,
- "ERR: Can't allocate and set up an Ethernet device\n");
- goto err_release_pci;
- }
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- pci_set_drvdata(pdev, netdev);
- adapter = netdev_priv(netdev);
- adapter->netdev = netdev;
- adapter->pdev = pdev;
- adapter->hw.back = adapter;
- adapter->hw.reg = pci_iomap(pdev, PCH_GBE_PCI_BAR, 0);
- if (!adapter->hw.reg) {
- ret = -EIO;
- dev_err(&pdev->dev, "Can't ioremap\n");
- goto err_free_netdev;
- }
-
- netdev->netdev_ops = &pch_gbe_netdev_ops;
- netdev->watchdog_timeo = PCH_GBE_WATCHDOG_PERIOD;
- netif_napi_add(netdev, &adapter->napi,
- pch_gbe_napi_poll, PCH_GBE_RX_WEIGHT);
- netdev->hw_features = NETIF_F_RXCSUM |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
- netdev->features = netdev->hw_features;
- pch_gbe_set_ethtool_ops(netdev);
-
- pch_gbe_mac_load_mac_addr(&adapter->hw);
- pch_gbe_mac_reset_hw(&adapter->hw);
-
- /* setup the private structure */
- ret = pch_gbe_sw_init(adapter);
- if (ret)
- goto err_iounmap;
-
- /* Initialize PHY */
- ret = pch_gbe_init_phy(adapter);
- if (ret) {
- dev_err(&pdev->dev, "PHY initialize error\n");
- goto err_free_adapter;
- }
- pch_gbe_hal_get_bus_info(&adapter->hw);
-
- /* Read the MAC address. and store to the private data */
- ret = pch_gbe_hal_read_mac_addr(&adapter->hw);
- if (ret) {
- dev_err(&pdev->dev, "MAC address Read Error\n");
- goto err_free_adapter;
- }
-
- memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
- if (!is_valid_ether_addr(netdev->dev_addr)) {
- dev_err(&pdev->dev, "Invalid MAC Address\n");
- ret = -EIO;
- goto err_free_adapter;
- }
- setup_timer(&adapter->watchdog_timer, pch_gbe_watchdog,
- (unsigned long)adapter);
-
- INIT_WORK(&adapter->reset_task, pch_gbe_reset_task);
-
- pch_gbe_check_options(adapter);
-
- /* initialize the wol settings based on the eeprom settings */
- adapter->wake_up_evt = PCH_GBE_WL_INIT_SETTING;
- dev_info(&pdev->dev, "MAC address : %pM\n", netdev->dev_addr);
-
- /* reset the hardware with the new settings */
- pch_gbe_reset(adapter);
-
- ret = register_netdev(netdev);
- if (ret)
- goto err_free_adapter;
- /* tell the stack to leave us alone until pch_gbe_open() is called */
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- dev_dbg(&pdev->dev, "OKIsemi(R) PCH Network Connection\n");
-
- device_set_wakeup_enable(&pdev->dev, 1);
- return 0;
-
-err_free_adapter:
- pch_gbe_hal_phy_hw_reset(&adapter->hw);
- kfree(adapter->tx_ring);
- kfree(adapter->rx_ring);
-err_iounmap:
- iounmap(adapter->hw.reg);
-err_free_netdev:
- free_netdev(netdev);
-err_release_pci:
- pci_release_regions(pdev);
-err_disable_device:
- pci_disable_device(pdev);
- return ret;
-}
-
-static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = {
- {.vendor = PCI_VENDOR_ID_INTEL,
- .device = PCI_DEVICE_ID_INTEL_IOH1_GBE,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
- .class_mask = (0xFFFF00)
- },
- {.vendor = PCI_VENDOR_ID_ROHM,
- .device = PCI_DEVICE_ID_ROHM_ML7223_GBE,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
- .class_mask = (0xFFFF00)
- },
- /* required last entry */
- {0}
-};
-
-#ifdef CONFIG_PM
-static const struct dev_pm_ops pch_gbe_pm_ops = {
- .suspend = pch_gbe_suspend,
- .resume = pch_gbe_resume,
- .freeze = pch_gbe_suspend,
- .thaw = pch_gbe_resume,
- .poweroff = pch_gbe_suspend,
- .restore = pch_gbe_resume,
-};
-#endif
-
-static struct pci_error_handlers pch_gbe_err_handler = {
- .error_detected = pch_gbe_io_error_detected,
- .slot_reset = pch_gbe_io_slot_reset,
- .resume = pch_gbe_io_resume
-};
-
-static struct pci_driver pch_gbe_driver = {
- .name = KBUILD_MODNAME,
- .id_table = pch_gbe_pcidev_id,
- .probe = pch_gbe_probe,
- .remove = pch_gbe_remove,
-#ifdef CONFIG_PM
- .driver.pm = &pch_gbe_pm_ops,
-#endif
- .shutdown = pch_gbe_shutdown,
- .err_handler = &pch_gbe_err_handler
-};
-
-
-static int __init pch_gbe_init_module(void)
-{
- int ret;
-
- ret = pci_register_driver(&pch_gbe_driver);
- if (copybreak != PCH_GBE_COPYBREAK_DEFAULT) {
- if (copybreak == 0) {
- pr_info("copybreak disabled\n");
- } else {
- pr_info("copybreak enabled for packets <= %u bytes\n",
- copybreak);
- }
- }
- return ret;
-}
-
-static void __exit pch_gbe_exit_module(void)
-{
- pci_unregister_driver(&pch_gbe_driver);
-}
-
-module_init(pch_gbe_init_module);
-module_exit(pch_gbe_exit_module);
-
-MODULE_DESCRIPTION("EG20T PCH Gigabit ethernet Driver");
-MODULE_AUTHOR("OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-MODULE_DEVICE_TABLE(pci, pch_gbe_pcidev_id);
-
-module_param(copybreak, uint, 0644);
-MODULE_PARM_DESC(copybreak,
- "Maximum size of packet that is copied to a new buffer on receive");
-
-/* pch_gbe_main.c */
+++ /dev/null
-/*
- * 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.
- */
-
-#include "pch_gbe.h"
-
-#define OPTION_UNSET -1
-#define OPTION_DISABLED 0
-#define OPTION_ENABLED 1
-
-/**
- * TxDescriptors - Transmit Descriptor Count
- * @Valid Range: PCH_GBE_MIN_TXD - PCH_GBE_MAX_TXD
- * @Default Value: PCH_GBE_DEFAULT_TXD
- */
-static int TxDescriptors = OPTION_UNSET;
-module_param(TxDescriptors, int, 0);
-MODULE_PARM_DESC(TxDescriptors, "Number of transmit descriptors");
-
-/**
- * RxDescriptors -Receive Descriptor Count
- * @Valid Range: PCH_GBE_MIN_RXD - PCH_GBE_MAX_RXD
- * @Default Value: PCH_GBE_DEFAULT_RXD
- */
-static int RxDescriptors = OPTION_UNSET;
-module_param(RxDescriptors, int, 0);
-MODULE_PARM_DESC(RxDescriptors, "Number of receive descriptors");
-
-/**
- * Speed - User Specified Speed Override
- * @Valid Range: 0, 10, 100, 1000
- * - 0: auto-negotiate at all supported speeds
- * - 10: only link at 10 Mbps
- * - 100: only link at 100 Mbps
- * - 1000: only link at 1000 Mbps
- * @Default Value: 0
- */
-static int Speed = OPTION_UNSET;
-module_param(Speed, int, 0);
-MODULE_PARM_DESC(Speed, "Speed setting");
-
-/**
- * Duplex - User Specified Duplex Override
- * @Valid Range: 0-2
- * - 0: auto-negotiate for duplex
- * - 1: only link at half duplex
- * - 2: only link at full duplex
- * @Default Value: 0
- */
-static int Duplex = OPTION_UNSET;
-module_param(Duplex, int, 0);
-MODULE_PARM_DESC(Duplex, "Duplex setting");
-
-#define HALF_DUPLEX 1
-#define FULL_DUPLEX 2
-
-/**
- * AutoNeg - Auto-negotiation Advertisement Override
- * @Valid Range: 0x01-0x0F, 0x20-0x2F
- *
- * The AutoNeg value is a bit mask describing which speed and duplex
- * combinations should be advertised during auto-negotiation.
- * The supported speed and duplex modes are listed below
- *
- * Bit 7 6 5 4 3 2 1 0
- * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
- * Duplex Full Full Half Full Half
- *
- * @Default Value: 0x2F (copper)
- */
-static int AutoNeg = OPTION_UNSET;
-module_param(AutoNeg, int, 0);
-MODULE_PARM_DESC(AutoNeg, "Advertised auto-negotiation setting");
-
-#define PHY_ADVERTISE_10_HALF 0x0001
-#define PHY_ADVERTISE_10_FULL 0x0002
-#define PHY_ADVERTISE_100_HALF 0x0004
-#define PHY_ADVERTISE_100_FULL 0x0008
-#define PHY_ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
-#define PHY_ADVERTISE_1000_FULL 0x0020
-#define PCH_AUTONEG_ADVERTISE_DEFAULT 0x2F
-
-/**
- * FlowControl - User Specified Flow Control Override
- * @Valid Range: 0-3
- * - 0: No Flow Control
- * - 1: Rx only, respond to PAUSE frames but do not generate them
- * - 2: Tx only, generate PAUSE frames but ignore them on receive
- * - 3: Full Flow Control Support
- * @Default Value: Read flow control settings from the EEPROM
- */
-static int FlowControl = OPTION_UNSET;
-module_param(FlowControl, int, 0);
-MODULE_PARM_DESC(FlowControl, "Flow Control setting");
-
-/*
- * XsumRX - Receive Checksum Offload Enable/Disable
- * @Valid Range: 0, 1
- * - 0: disables all checksum offload
- * - 1: enables receive IP/TCP/UDP checksum offload
- * @Default Value: PCH_GBE_DEFAULT_RX_CSUM
- */
-static int XsumRX = OPTION_UNSET;
-module_param(XsumRX, int, 0);
-MODULE_PARM_DESC(XsumRX, "Disable or enable Receive Checksum offload");
-
-#define PCH_GBE_DEFAULT_RX_CSUM true /* trueorfalse */
-
-/*
- * XsumTX - Transmit Checksum Offload Enable/Disable
- * @Valid Range: 0, 1
- * - 0: disables all checksum offload
- * - 1: enables transmit IP/TCP/UDP checksum offload
- * @Default Value: PCH_GBE_DEFAULT_TX_CSUM
- */
-static int XsumTX = OPTION_UNSET;
-module_param(XsumTX, int, 0);
-MODULE_PARM_DESC(XsumTX, "Disable or enable Transmit Checksum offload");
-
-#define PCH_GBE_DEFAULT_TX_CSUM true /* trueorfalse */
-
-/**
- * pch_gbe_option - Force the MAC's flow control settings
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-struct pch_gbe_option {
- enum { enable_option, range_option, list_option } type;
- char *name;
- char *err;
- int def;
- union {
- struct { /* range_option info */
- int min;
- int max;
- } r;
- struct { /* list_option info */
- int nr;
- const struct pch_gbe_opt_list { int i; char *str; } *p;
- } l;
- } arg;
-};
-
-static const struct pch_gbe_opt_list speed_list[] = {
- { 0, "" },
- { SPEED_10, "" },
- { SPEED_100, "" },
- { SPEED_1000, "" }
-};
-
-static const struct pch_gbe_opt_list dplx_list[] = {
- { 0, "" },
- { HALF_DUPLEX, "" },
- { FULL_DUPLEX, "" }
-};
-
-static const struct pch_gbe_opt_list an_list[] =
- #define AA "AutoNeg advertising "
- {{ 0x01, AA "10/HD" },
- { 0x02, AA "10/FD" },
- { 0x03, AA "10/FD, 10/HD" },
- { 0x04, AA "100/HD" },
- { 0x05, AA "100/HD, 10/HD" },
- { 0x06, AA "100/HD, 10/FD" },
- { 0x07, AA "100/HD, 10/FD, 10/HD" },
- { 0x08, AA "100/FD" },
- { 0x09, AA "100/FD, 10/HD" },
- { 0x0a, AA "100/FD, 10/FD" },
- { 0x0b, AA "100/FD, 10/FD, 10/HD" },
- { 0x0c, AA "100/FD, 100/HD" },
- { 0x0d, AA "100/FD, 100/HD, 10/HD" },
- { 0x0e, AA "100/FD, 100/HD, 10/FD" },
- { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
- { 0x20, AA "1000/FD" },
- { 0x21, AA "1000/FD, 10/HD" },
- { 0x22, AA "1000/FD, 10/FD" },
- { 0x23, AA "1000/FD, 10/FD, 10/HD" },
- { 0x24, AA "1000/FD, 100/HD" },
- { 0x25, AA "1000/FD, 100/HD, 10/HD" },
- { 0x26, AA "1000/FD, 100/HD, 10/FD" },
- { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
- { 0x28, AA "1000/FD, 100/FD" },
- { 0x29, AA "1000/FD, 100/FD, 10/HD" },
- { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
- { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
- { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
- { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
- { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
- { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }
-};
-
-static const struct pch_gbe_opt_list fc_list[] = {
- { PCH_GBE_FC_NONE, "Flow Control Disabled" },
- { PCH_GBE_FC_RX_PAUSE, "Flow Control Receive Only" },
- { PCH_GBE_FC_TX_PAUSE, "Flow Control Transmit Only" },
- { PCH_GBE_FC_FULL, "Flow Control Enabled" }
-};
-
-/**
- * pch_gbe_validate_option - Validate option
- * @value: value
- * @opt: option
- * @adapter: Board private structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-static int pch_gbe_validate_option(int *value,
- const struct pch_gbe_option *opt,
- struct pch_gbe_adapter *adapter)
-{
- if (*value == OPTION_UNSET) {
- *value = opt->def;
- return 0;
- }
-
- switch (opt->type) {
- case enable_option:
- switch (*value) {
- case OPTION_ENABLED:
- pr_debug("%s Enabled\n", opt->name);
- return 0;
- case OPTION_DISABLED:
- pr_debug("%s Disabled\n", opt->name);
- return 0;
- }
- break;
- case range_option:
- if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
- pr_debug("%s set to %i\n", opt->name, *value);
- return 0;
- }
- break;
- case list_option: {
- int i;
- const struct pch_gbe_opt_list *ent;
-
- for (i = 0; i < opt->arg.l.nr; i++) {
- ent = &opt->arg.l.p[i];
- if (*value == ent->i) {
- if (ent->str[0] != '\0')
- pr_debug("%s\n", ent->str);
- return 0;
- }
- }
- }
- break;
- default:
- BUG();
- }
-
- pr_debug("Invalid %s value specified (%i) %s\n",
- opt->name, *value, opt->err);
- *value = opt->def;
- return -1;
-}
-
-/**
- * pch_gbe_check_copper_options - Range Checking for Link Options, Copper Version
- * @adapter: Board private structure
- */
-static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- int speed, dplx;
-
- { /* Speed */
- static const struct pch_gbe_option opt = {
- .type = list_option,
- .name = "Speed",
- .err = "parameter ignored",
- .def = 0,
- .arg = { .l = { .nr = (int)ARRAY_SIZE(speed_list),
- .p = speed_list } }
- };
- speed = Speed;
- pch_gbe_validate_option(&speed, &opt, adapter);
- }
- { /* Duplex */
- static const struct pch_gbe_option opt = {
- .type = list_option,
- .name = "Duplex",
- .err = "parameter ignored",
- .def = 0,
- .arg = { .l = { .nr = (int)ARRAY_SIZE(dplx_list),
- .p = dplx_list } }
- };
- dplx = Duplex;
- pch_gbe_validate_option(&dplx, &opt, adapter);
- }
-
- { /* Autoneg */
- static const struct pch_gbe_option opt = {
- .type = list_option,
- .name = "AutoNeg",
- .err = "parameter ignored",
- .def = PCH_AUTONEG_ADVERTISE_DEFAULT,
- .arg = { .l = { .nr = (int)ARRAY_SIZE(an_list),
- .p = an_list} }
- };
- if (speed || dplx) {
- pr_debug("AutoNeg specified along with Speed or Duplex, AutoNeg parameter ignored\n");
- hw->phy.autoneg_advertised = opt.def;
- } else {
- hw->phy.autoneg_advertised = AutoNeg;
- pch_gbe_validate_option(
- (int *)(&hw->phy.autoneg_advertised),
- &opt, adapter);
- }
- }
-
- switch (speed + dplx) {
- case 0:
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- if ((speed || dplx))
- pr_debug("Speed and duplex autonegotiation enabled\n");
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case HALF_DUPLEX:
- pr_debug("Half Duplex specified without Speed\n");
- pr_debug("Using Autonegotiation at Half Duplex only\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
- PHY_ADVERTISE_100_HALF;
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case FULL_DUPLEX:
- pr_debug("Full Duplex specified without Speed\n");
- pr_debug("Using Autonegotiation at Full Duplex only\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- hw->phy.autoneg_advertised = PHY_ADVERTISE_10_FULL |
- PHY_ADVERTISE_100_FULL |
- PHY_ADVERTISE_1000_FULL;
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_FULL;
- break;
- case SPEED_10:
- pr_debug("10 Mbps Speed specified without Duplex\n");
- pr_debug("Using Autonegotiation at 10 Mbps only\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
- PHY_ADVERTISE_10_FULL;
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case SPEED_10 + HALF_DUPLEX:
- pr_debug("Forcing to 10 Mbps Half Duplex\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 0;
- hw->phy.autoneg_advertised = 0;
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case SPEED_10 + FULL_DUPLEX:
- pr_debug("Forcing to 10 Mbps Full Duplex\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 0;
- hw->phy.autoneg_advertised = 0;
- hw->mac.link_speed = SPEED_10;
- hw->mac.link_duplex = DUPLEX_FULL;
- break;
- case SPEED_100:
- pr_debug("100 Mbps Speed specified without Duplex\n");
- pr_debug("Using Autonegotiation at 100 Mbps only\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- hw->phy.autoneg_advertised = PHY_ADVERTISE_100_HALF |
- PHY_ADVERTISE_100_FULL;
- hw->mac.link_speed = SPEED_100;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case SPEED_100 + HALF_DUPLEX:
- pr_debug("Forcing to 100 Mbps Half Duplex\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 0;
- hw->phy.autoneg_advertised = 0;
- hw->mac.link_speed = SPEED_100;
- hw->mac.link_duplex = DUPLEX_HALF;
- break;
- case SPEED_100 + FULL_DUPLEX:
- pr_debug("Forcing to 100 Mbps Full Duplex\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 0;
- hw->phy.autoneg_advertised = 0;
- hw->mac.link_speed = SPEED_100;
- hw->mac.link_duplex = DUPLEX_FULL;
- break;
- case SPEED_1000:
- pr_debug("1000 Mbps Speed specified without Duplex\n");
- goto full_duplex_only;
- case SPEED_1000 + HALF_DUPLEX:
- pr_debug("Half Duplex is not supported at 1000 Mbps\n");
- /* fall through */
- case SPEED_1000 + FULL_DUPLEX:
-full_duplex_only:
- pr_debug("Using Autonegotiation at 1000 Mbps Full Duplex only\n");
- hw->mac.autoneg = hw->mac.fc_autoneg = 1;
- hw->phy.autoneg_advertised = PHY_ADVERTISE_1000_FULL;
- hw->mac.link_speed = SPEED_1000;
- hw->mac.link_duplex = DUPLEX_FULL;
- break;
- default:
- BUG();
- }
-}
-
-/**
- * pch_gbe_check_options - Range Checking for Command Line Parameters
- * @adapter: Board private structure
- */
-void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
-{
- struct pch_gbe_hw *hw = &adapter->hw;
- struct net_device *dev = adapter->netdev;
- int val;
-
- { /* Transmit Descriptor Count */
- static const struct pch_gbe_option opt = {
- .type = range_option,
- .name = "Transmit Descriptors",
- .err = "using default of "
- __MODULE_STRING(PCH_GBE_DEFAULT_TXD),
- .def = PCH_GBE_DEFAULT_TXD,
- .arg = { .r = { .min = PCH_GBE_MIN_TXD,
- .max = PCH_GBE_MAX_TXD } }
- };
- struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
- tx_ring->count = TxDescriptors;
- pch_gbe_validate_option(&tx_ring->count, &opt, adapter);
- tx_ring->count = roundup(tx_ring->count,
- PCH_GBE_TX_DESC_MULTIPLE);
- }
- { /* Receive Descriptor Count */
- static const struct pch_gbe_option opt = {
- .type = range_option,
- .name = "Receive Descriptors",
- .err = "using default of "
- __MODULE_STRING(PCH_GBE_DEFAULT_RXD),
- .def = PCH_GBE_DEFAULT_RXD,
- .arg = { .r = { .min = PCH_GBE_MIN_RXD,
- .max = PCH_GBE_MAX_RXD } }
- };
- struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
- rx_ring->count = RxDescriptors;
- pch_gbe_validate_option(&rx_ring->count, &opt, adapter);
- rx_ring->count = roundup(rx_ring->count,
- PCH_GBE_RX_DESC_MULTIPLE);
- }
- { /* Checksum Offload Enable/Disable */
- static const struct pch_gbe_option opt = {
- .type = enable_option,
- .name = "Checksum Offload",
- .err = "defaulting to Enabled",
- .def = PCH_GBE_DEFAULT_RX_CSUM
- };
- val = XsumRX;
- pch_gbe_validate_option(&val, &opt, adapter);
- if (!val)
- dev->features &= ~NETIF_F_RXCSUM;
- }
- { /* Checksum Offload Enable/Disable */
- static const struct pch_gbe_option opt = {
- .type = enable_option,
- .name = "Checksum Offload",
- .err = "defaulting to Enabled",
- .def = PCH_GBE_DEFAULT_TX_CSUM
- };
- val = XsumTX;
- pch_gbe_validate_option(&val, &opt, adapter);
- if (!val)
- dev->features &= ~NETIF_F_ALL_CSUM;
- }
- { /* Flow Control */
- static const struct pch_gbe_option opt = {
- .type = list_option,
- .name = "Flow Control",
- .err = "reading default settings from EEPROM",
- .def = PCH_GBE_FC_DEFAULT,
- .arg = { .l = { .nr = (int)ARRAY_SIZE(fc_list),
- .p = fc_list } }
- };
- hw->mac.fc = FlowControl;
- pch_gbe_validate_option((int *)(&hw->mac.fc),
- &opt, adapter);
- }
-
- pch_gbe_check_copper_options(adapter);
-}
+++ /dev/null
-/*
- * 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.
- */
-
-#include "pch_gbe.h"
-#include "pch_gbe_phy.h"
-
-#define PHY_MAX_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */
-
-/* PHY 1000 MII Register/Bit Definitions */
-/* PHY Registers defined by IEEE */
-#define PHY_CONTROL 0x00 /* Control Register */
-#define PHY_STATUS 0x01 /* Status Regiser */
-#define PHY_ID1 0x02 /* Phy Id Register (word 1) */
-#define PHY_ID2 0x03 /* Phy Id Register (word 2) */
-#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */
-#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */
-#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Register */
-#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */
-#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */
-#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Register */
-#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Register */
-#define PHY_EXT_STATUS 0x0F /* Extended Status Register */
-#define PHY_PHYSP_CONTROL 0x10 /* PHY Specific Control Register */
-#define PHY_EXT_PHYSP_CONTROL 0x14 /* Extended PHY Specific Control Register */
-#define PHY_LED_CONTROL 0x18 /* LED Control Register */
-#define PHY_EXT_PHYSP_STATUS 0x1B /* Extended PHY Specific Status Register */
-
-/* PHY Control Register */
-#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
-#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
-#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
-#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
-#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */
-#define MII_CR_POWER_DOWN 0x0800 /* Power down */
-#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
-#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
-#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
-#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
-#define MII_CR_SPEED_1000 0x0040
-#define MII_CR_SPEED_100 0x2000
-#define MII_CR_SPEED_10 0x0000
-
-/* PHY Status Register */
-#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
-#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
-#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
-#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
-#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
-#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
-#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
-#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
-#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
-#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
-#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
-#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
-#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
-#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
-#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
-
-/* Phy Id Register (word 2) */
-#define PHY_REVISION_MASK 0x000F
-
-/* PHY Specific Control Register */
-#define PHYSP_CTRL_ASSERT_CRS_TX 0x0800
-
-
-/* Default value of PHY register */
-#define PHY_CONTROL_DEFAULT 0x1140 /* Control Register */
-#define PHY_AUTONEG_ADV_DEFAULT 0x01e0 /* Autoneg Advertisement */
-#define PHY_NEXT_PAGE_TX_DEFAULT 0x2001 /* Next Page TX */
-#define PHY_1000T_CTRL_DEFAULT 0x0300 /* 1000Base-T Control Register */
-#define PHY_PHYSP_CONTROL_DEFAULT 0x01EE /* PHY Specific Control Register */
-
-/**
- * pch_gbe_phy_get_id - Retrieve the PHY ID and revision
- * @hw: Pointer to the HW structure
- * Returns
- * 0: Successful.
- * Negative value: Failed.
- */
-s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw)
-{
- struct pch_gbe_phy_info *phy = &hw->phy;
- s32 ret;
- u16 phy_id1;
- u16 phy_id2;
-
- ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID1, &phy_id1);
- if (ret)
- return ret;
- ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID2, &phy_id2);
- if (ret)
- return ret;
- /*
- * PHY_ID1: [bit15-0:ID(21-6)]
- * PHY_ID2: [bit15-10:ID(5-0)][bit9-4:Model][bit3-0:revision]
- */
- phy->id = (u32)phy_id1;
- phy->id = ((phy->id << 6) | ((phy_id2 & 0xFC00) >> 10));
- phy->revision = (u32) (phy_id2 & 0x000F);
- pr_debug("phy->id : 0x%08x phy->revision : 0x%08x\n",
- phy->id, phy->revision);
- return 0;
-}
-
-/**
- * pch_gbe_phy_read_reg_miic - Read MII control register
- * @hw: Pointer to the HW structure
- * @offset: Register offset to be read
- * @data: Pointer to the read data
- * Returns
- * 0: Successful.
- * -EINVAL: Invalid argument.
- */
-s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data)
-{
- struct pch_gbe_phy_info *phy = &hw->phy;
-
- if (offset > PHY_MAX_REG_ADDRESS) {
- pr_err("PHY Address %d is out of range\n", offset);
- return -EINVAL;
- }
- *data = pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_READ,
- offset, (u16)0);
- return 0;
-}
-
-/**
- * pch_gbe_phy_write_reg_miic - Write MII control register
- * @hw: Pointer to the HW structure
- * @offset: Register offset to be read
- * @data: data to write to register at offset
- * Returns
- * 0: Successful.
- * -EINVAL: Invalid argument.
- */
-s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data)
-{
- struct pch_gbe_phy_info *phy = &hw->phy;
-
- if (offset > PHY_MAX_REG_ADDRESS) {
- pr_err("PHY Address %d is out of range\n", offset);
- return -EINVAL;
- }
- pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_WRITE,
- offset, data);
- return 0;
-}
-
-/**
- * pch_gbe_phy_sw_reset - PHY software reset
- * @hw: Pointer to the HW structure
- */
-void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw)
-{
- u16 phy_ctrl;
-
- pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &phy_ctrl);
- phy_ctrl |= MII_CR_RESET;
- pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, phy_ctrl);
- udelay(1);
-}
-
-/**
- * pch_gbe_phy_hw_reset - PHY hardware reset
- * @hw: Pointer to the HW structure
- */
-void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw)
-{
- pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, PHY_CONTROL_DEFAULT);
- pch_gbe_phy_write_reg_miic(hw, PHY_AUTONEG_ADV,
- PHY_AUTONEG_ADV_DEFAULT);
- pch_gbe_phy_write_reg_miic(hw, PHY_NEXT_PAGE_TX,
- PHY_NEXT_PAGE_TX_DEFAULT);
- pch_gbe_phy_write_reg_miic(hw, PHY_1000T_CTRL, PHY_1000T_CTRL_DEFAULT);
- pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL,
- PHY_PHYSP_CONTROL_DEFAULT);
-}
-
-/**
- * pch_gbe_phy_power_up - restore link in case the phy was powered down
- * @hw: Pointer to the HW structure
- */
-void pch_gbe_phy_power_up(struct pch_gbe_hw *hw)
-{
- u16 mii_reg;
-
- mii_reg = 0;
- /* Just clear the power down bit to wake the phy back up */
- /* according to the manual, the phy will retain its
- * settings across a power-down/up cycle */
- pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
- mii_reg &= ~MII_CR_POWER_DOWN;
- pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
-}
-
-/**
- * pch_gbe_phy_power_down - Power down PHY
- * @hw: Pointer to the HW structure
- */
-void pch_gbe_phy_power_down(struct pch_gbe_hw *hw)
-{
- u16 mii_reg;
-
- mii_reg = 0;
- /* Power down the PHY so no link is implied when interface is down *
- * The PHY cannot be powered down if any of the following is TRUE *
- * (a) WoL is enabled
- * (b) AMT is active
- */
- pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
- mii_reg |= MII_CR_POWER_DOWN;
- pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
- mdelay(1);
-}
-
-/**
- * pch_gbe_phy_set_rgmii - RGMII interface setting
- * @hw: Pointer to the HW structure
- */
-inline void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
-{
- pch_gbe_phy_sw_reset(hw);
-}
-
-/**
- * pch_gbe_phy_init_setting - PHY initial setting
- * @hw: Pointer to the HW structure
- */
-void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
-{
- struct pch_gbe_adapter *adapter;
- struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
- int ret;
- u16 mii_reg;
-
- adapter = container_of(hw, struct pch_gbe_adapter, hw);
- ret = mii_ethtool_gset(&adapter->mii, &cmd);
- if (ret)
- pr_err("Error: mii_ethtool_gset\n");
-
- ethtool_cmd_speed_set(&cmd, hw->mac.link_speed);
- cmd.duplex = hw->mac.link_duplex;
- cmd.advertising = hw->phy.autoneg_advertised;
- cmd.autoneg = hw->mac.autoneg;
- pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);
- ret = mii_ethtool_sset(&adapter->mii, &cmd);
- if (ret)
- pr_err("Error: mii_ethtool_sset\n");
-
- pch_gbe_phy_sw_reset(hw);
-
- pch_gbe_phy_read_reg_miic(hw, PHY_PHYSP_CONTROL, &mii_reg);
- mii_reg |= PHYSP_CTRL_ASSERT_CRS_TX;
- pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL, mii_reg);
-
-}
+++ /dev/null
-/*
- * 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_PHY_H_
-#define _PCH_GBE_PHY_H_
-
-#define PCH_GBE_PHY_REGS_LEN 32
-#define PCH_GBE_PHY_RESET_DELAY_US 10
-#define PCH_GBE_MAC_IFOP_RGMII
-
-s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw);
-s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data);
-s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data);
-void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw);
-void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw);
-void pch_gbe_phy_power_up(struct pch_gbe_hw *hw);
-void pch_gbe_phy_power_down(struct pch_gbe_hw *hw);
-void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw);
-void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw);
-
-#endif /* _PCH_GBE_PHY_H_ */
projects / linux-flexiantxendom0.git / commitdiff