From: Jeff Kirsher Date: Sat, 21 May 2011 02:48:55 +0000 (-0700) Subject: pch_gbe: Move the OKI Semiconductor driver X-Git-Tag: MMI-PSA29.97-13-9~18194^2~526 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1c1538be1da768fe0209a11e1bdf9dd7ab38905a;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git pch_gbe: Move the OKI Semiconductor driver Move the OKI Semiconductor driver into driver/net/ethernet/oki-semi/ and make the necessary Kconfig and Makefile changes. Note: there is no documented maintainer for this driver, so I CC'd the last 2 major contributors. CC: Tomoya CC: Toshiharu Okada Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 696464cb0a93..87e7a1217851 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -996,25 +996,6 @@ config S6GMAC 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 # diff --git a/drivers/net/Makefile b/drivers/net/Makefile index b1ead87b65c3..141ed251f52c 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -156,5 +156,4 @@ obj-$(CONFIG_WIMAX) += wimax/ obj-$(CONFIG_CAIF) += caif/ obj-$(CONFIG_OCTEON_MGMT_ETHERNET) += octeon/ -obj-$(CONFIG_PCH_GBE) += pch_gbe/ obj-$(CONFIG_TILE_NET) += tile/ diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig index 35ed4c21a454..0eaf95770ab7 100644 --- a/drivers/net/ethernet/Kconfig +++ b/drivers/net/ethernet/Kconfig @@ -32,6 +32,7 @@ source "drivers/net/ethernet/mellanox/Kconfig" source "drivers/net/ethernet/myricom/Kconfig" source "drivers/net/ethernet/natsemi/Kconfig" source "drivers/net/ethernet/8390/Kconfig" +source "drivers/net/ethernet/oki-semi/Kconfig" source "drivers/net/ethernet/pasemi/Kconfig" source "drivers/net/ethernet/qlogic/Kconfig" source "drivers/net/ethernet/racal/Kconfig" diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index ea0999fd1494..b5ca872f2444 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_NET_VENDOR_XSCALE) += xscale/ 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-$(CONFIG_NET_VENDOR_RACAL) += racal/ diff --git a/drivers/net/ethernet/oki-semi/Kconfig b/drivers/net/ethernet/oki-semi/Kconfig new file mode 100644 index 000000000000..97f5e72f0ec7 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/Kconfig @@ -0,0 +1,22 @@ +# +# OKI Semiconductor device configuration +# + +config NET_VENDOR_OKI + bool "OKI Semiconductor devices" + depends on PCI + ---help--- + If you have a network (Ethernet) card belonging to this class, say Y + and read the Ethernet-HOWTO, available from + . + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about OKI Semiconductor cards. If you say Y, you will + be asked for your specific card in the following questions. + +if NET_VENDOR_OKI + +source "drivers/net/ethernet/oki-semi/pch_gbe/Kconfig" + +endif # NET_VENDOR_OKI diff --git a/drivers/net/ethernet/oki-semi/Makefile b/drivers/net/ethernet/oki-semi/Makefile new file mode 100644 index 000000000000..b6780c877c19 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the OKI Semiconductor device drivers. +# + +obj-$(CONFIG_PCH_GBE) += pch_gbe/ diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig new file mode 100644 index 000000000000..c85709d6ff1b --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig @@ -0,0 +1,20 @@ +# +# 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. diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Makefile b/drivers/net/ethernet/oki-semi/pch_gbe/Makefile new file mode 100644 index 000000000000..31288d4ad248 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/Makefile @@ -0,0 +1,4 @@ +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 diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h new file mode 100644 index 000000000000..59fac77d0dbb --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h @@ -0,0 +1,655 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/** + * 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_ */ diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c new file mode 100644 index 000000000000..e48f084ad226 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c @@ -0,0 +1,245 @@ +/* + * 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); +} diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.h new file mode 100644 index 000000000000..94aaac5b057b --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.h @@ -0,0 +1,36 @@ +/* + * 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 diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c new file mode 100644 index 000000000000..ea2d8e41887a --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c @@ -0,0 +1,517 @@ +/* + * 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); +} diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c new file mode 100644 index 000000000000..eac3c5ca9731 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -0,0 +1,2523 @@ +/* + * 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 + +#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, "); +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 */ diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c new file mode 100644 index 000000000000..5b5d90a47e29 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c @@ -0,0 +1,503 @@ +/* + * 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); +} diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c new file mode 100644 index 000000000000..28bb9603d736 --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c @@ -0,0 +1,274 @@ +/* + * 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); + +} diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.h new file mode 100644 index 000000000000..03264dc7b5ec --- /dev/null +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.h @@ -0,0 +1,37 @@ +/* + * 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_ */ diff --git a/drivers/net/pch_gbe/Makefile b/drivers/net/pch_gbe/Makefile deleted file mode 100644 index 31288d4ad248..000000000000 --- a/drivers/net/pch_gbe/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -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 diff --git a/drivers/net/pch_gbe/pch_gbe.h b/drivers/net/pch_gbe/pch_gbe.h deleted file mode 100644 index 59fac77d0dbb..000000000000 --- a/drivers/net/pch_gbe/pch_gbe.h +++ /dev/null @@ -1,655 +0,0 @@ -/* - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/** - * 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_ */ diff --git a/drivers/net/pch_gbe/pch_gbe_api.c b/drivers/net/pch_gbe/pch_gbe_api.c deleted file mode 100644 index e48f084ad226..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_api.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * 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); -} diff --git a/drivers/net/pch_gbe/pch_gbe_api.h b/drivers/net/pch_gbe/pch_gbe_api.h deleted file mode 100644 index 94aaac5b057b..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_api.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * 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 diff --git a/drivers/net/pch_gbe/pch_gbe_ethtool.c b/drivers/net/pch_gbe/pch_gbe_ethtool.c deleted file mode 100644 index ea2d8e41887a..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_ethtool.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * 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); -} diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c deleted file mode 100644 index eac3c5ca9731..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_main.c +++ /dev/null @@ -1,2523 +0,0 @@ -/* - * 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 - -#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, "); -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 */ diff --git a/drivers/net/pch_gbe/pch_gbe_param.c b/drivers/net/pch_gbe/pch_gbe_param.c deleted file mode 100644 index 5b5d90a47e29..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_param.c +++ /dev/null @@ -1,503 +0,0 @@ -/* - * 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); -} diff --git a/drivers/net/pch_gbe/pch_gbe_phy.c b/drivers/net/pch_gbe/pch_gbe_phy.c deleted file mode 100644 index 28bb9603d736..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_phy.c +++ /dev/null @@ -1,274 +0,0 @@ -/* - * 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); - -} diff --git a/drivers/net/pch_gbe/pch_gbe_phy.h b/drivers/net/pch_gbe/pch_gbe_phy.h deleted file mode 100644 index 03264dc7b5ec..000000000000 --- a/drivers/net/pch_gbe/pch_gbe_phy.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * 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_ */