diff options
Diffstat (limited to 'drivers/net/tc35815.c')
| -rw-r--r-- | drivers/net/tc35815.c | 1745 |
1 files changed, 0 insertions, 1745 deletions
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c deleted file mode 100644 index c2ec9fd8c31..00000000000 --- a/drivers/net/tc35815.c +++ /dev/null @@ -1,1745 +0,0 @@ -/* tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux. - * - * Copyright 2001 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ahennessy@mvista.com - * - * Based on skelton.c by Donald Becker. - * Copyright (C) 2000-2001 Toshiba Corporation - * - * 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; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -static const char *version = - "tc35815.c:v0.00 26/07/2000 by Toshiba Corporation\n"; - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/proc_fs.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/dma.h> -#include <asm/byteorder.h> - -/* - * The name of the card. Is used for messages and in the requests for - * io regions, irqs and dma channels - */ -static const char* cardname = "TC35815CF"; -#define TC35815_PROC_ENTRY "net/tc35815" - -#define TC35815_MODULE_NAME "TC35815CF" -#define TX_TIMEOUT (4*HZ) - -/* First, a few definitions that the brave might change. */ - -/* use 0 for production, 1 for verification, >2 for debug */ -#ifndef TC35815_DEBUG -#define TC35815_DEBUG 1 -#endif -static unsigned int tc35815_debug = TC35815_DEBUG; - -#define GATHER_TXINT /* On-Demand Tx Interrupt */ - -#define vtonocache(p) KSEG1ADDR(virt_to_phys(p)) - -/* - * Registers - */ -struct tc35815_regs { - volatile __u32 DMA_Ctl; /* 0x00 */ - volatile __u32 TxFrmPtr; - volatile __u32 TxThrsh; - volatile __u32 TxPollCtr; - volatile __u32 BLFrmPtr; - volatile __u32 RxFragSize; - volatile __u32 Int_En; - volatile __u32 FDA_Bas; - volatile __u32 FDA_Lim; /* 0x20 */ - volatile __u32 Int_Src; - volatile __u32 unused0[2]; - volatile __u32 PauseCnt; - volatile __u32 RemPauCnt; - volatile __u32 TxCtlFrmStat; - volatile __u32 unused1; - volatile __u32 MAC_Ctl; /* 0x40 */ - volatile __u32 CAM_Ctl; - volatile __u32 Tx_Ctl; - volatile __u32 Tx_Stat; - volatile __u32 Rx_Ctl; - volatile __u32 Rx_Stat; - volatile __u32 MD_Data; - volatile __u32 MD_CA; - volatile __u32 CAM_Adr; /* 0x60 */ - volatile __u32 CAM_Data; - volatile __u32 CAM_Ena; - volatile __u32 PROM_Ctl; - volatile __u32 PROM_Data; - volatile __u32 Algn_Cnt; - volatile __u32 CRC_Cnt; - volatile __u32 Miss_Cnt; -}; - -/* - * Bit assignments - */ -/* DMA_Ctl bit asign ------------------------------------------------------- */ -#define DMA_IntMask 0x00040000 /* 1:Interupt mask */ -#define DMA_SWIntReq 0x00020000 /* 1:Software Interrupt request */ -#define DMA_TxWakeUp 0x00010000 /* 1:Transmit Wake Up */ -#define DMA_RxBigE 0x00008000 /* 1:Receive Big Endian */ -#define DMA_TxBigE 0x00004000 /* 1:Transmit Big Endian */ -#define DMA_TestMode 0x00002000 /* 1:Test Mode */ -#define DMA_PowrMgmnt 0x00001000 /* 1:Power Management */ -#define DMA_DmBurst_Mask 0x000001fc /* DMA Burst size */ - -/* RxFragSize bit asign ---------------------------------------------------- */ -#define RxFrag_EnPack 0x00008000 /* 1:Enable Packing */ -#define RxFrag_MinFragMask 0x00000ffc /* Minimum Fragment */ - -/* MAC_Ctl bit asign ------------------------------------------------------- */ -#define MAC_Link10 0x00008000 /* 1:Link Status 10Mbits */ -#define MAC_EnMissRoll 0x00002000 /* 1:Enable Missed Roll */ -#define MAC_MissRoll 0x00000400 /* 1:Missed Roll */ -#define MAC_Loop10 0x00000080 /* 1:Loop 10 Mbps */ -#define MAC_Conn_Auto 0x00000000 /*00:Connection mode (Automatic) */ -#define MAC_Conn_10M 0x00000020 /*01: (10Mbps endec)*/ -#define MAC_Conn_Mll 0x00000040 /*10: (Mll clock) */ -#define MAC_MacLoop 0x00000010 /* 1:MAC Loopback */ -#define MAC_FullDup 0x00000008 /* 1:Full Duplex 0:Half Duplex */ -#define MAC_Reset 0x00000004 /* 1:Software Reset */ -#define MAC_HaltImm 0x00000002 /* 1:Halt Immediate */ -#define MAC_HaltReq 0x00000001 /* 1:Halt request */ - -/* PROM_Ctl bit asign ------------------------------------------------------ */ -#define PROM_Busy 0x00008000 /* 1:Busy (Start Operation) */ -#define PROM_Read 0x00004000 /*10:Read operation */ -#define PROM_Write 0x00002000 /*01:Write operation */ -#define PROM_Erase 0x00006000 /*11:Erase operation */ - /*00:Enable or Disable Writting, */ - /* as specified in PROM_Addr. */ -#define PROM_Addr_Ena 0x00000030 /*11xxxx:PROM Write enable */ - /*00xxxx: disable */ - -/* CAM_Ctl bit asign ------------------------------------------------------- */ -#define CAM_CompEn 0x00000010 /* 1:CAM Compare Enable */ -#define CAM_NegCAM 0x00000008 /* 1:Reject packets CAM recognizes,*/ - /* accept other */ -#define CAM_BroadAcc 0x00000004 /* 1:Broadcast assept */ -#define CAM_GroupAcc 0x00000002 /* 1:Multicast assept */ -#define CAM_StationAcc 0x00000001 /* 1:unicast accept */ - -/* CAM_Ena bit asign ------------------------------------------------------- */ -#define CAM_ENTRY_MAX 21 /* CAM Data entry max count */ -#define CAM_Ena_Mask ((1<<CAM_ENTRY_MAX)-1) /* CAM Enable bits (Max 21bits) */ -#define CAM_Ena_Bit(index) (1<<(index)) -#define CAM_ENTRY_DESTINATION 0 -#define CAM_ENTRY_SOURCE 1 -#define CAM_ENTRY_MACCTL 20 - -/* Tx_Ctl bit asign -------------------------------------------------------- */ -#define Tx_En 0x00000001 /* 1:Transmit enable */ -#define Tx_TxHalt 0x00000002 /* 1:Transmit Halt Request */ -#define Tx_NoPad 0x00000004 /* 1:Suppress Padding */ -#define Tx_NoCRC 0x00000008 /* 1:Suppress Padding */ -#define Tx_FBack 0x00000010 /* 1:Fast Back-off */ -#define Tx_EnUnder 0x00000100 /* 1:Enable Underrun */ -#define Tx_EnExDefer 0x00000200 /* 1:Enable Excessive Deferral */ -#define Tx_EnLCarr 0x00000400 /* 1:Enable Lost Carrier */ -#define Tx_EnExColl 0x00000800 /* 1:Enable Excessive Collision */ -#define Tx_EnLateColl 0x00001000 /* 1:Enable Late Collision */ -#define Tx_EnTxPar 0x00002000 /* 1:Enable Transmit Parity */ -#define Tx_EnComp 0x00004000 /* 1:Enable Completion */ - -/* Tx_Stat bit asign ------------------------------------------------------- */ -#define Tx_TxColl_MASK 0x0000000F /* Tx Collision Count */ -#define Tx_ExColl 0x00000010 /* Excessive Collision */ -#define Tx_TXDefer 0x00000020 /* Transmit Defered */ -#define Tx_Paused 0x00000040 /* Transmit Paused */ -#define Tx_IntTx 0x00000080 /* Interrupt on Tx */ -#define Tx_Under 0x00000100 /* Underrun */ -#define Tx_Defer 0x00000200 /* Deferral */ -#define Tx_NCarr 0x00000400 /* No Carrier */ -#define Tx_10Stat 0x00000800 /* 10Mbps Status */ -#define Tx_LateColl 0x00001000 /* Late Collision */ -#define Tx_TxPar 0x00002000 /* Tx Parity Error */ -#define Tx_Comp 0x00004000 /* Completion */ -#define Tx_Halted 0x00008000 /* Tx Halted */ -#define Tx_SQErr 0x00010000 /* Signal Quality Error(SQE) */ - -/* Rx_Ctl bit asign -------------------------------------------------------- */ -#define Rx_EnGood 0x00004000 /* 1:Enable Good */ -#define Rx_EnRxPar 0x00002000 /* 1:Enable Receive Parity */ -#define Rx_EnLongErr 0x00000800 /* 1:Enable Long Error */ -#define Rx_EnOver 0x00000400 /* 1:Enable OverFlow */ -#define Rx_EnCRCErr 0x00000200 /* 1:Enable CRC Error */ -#define Rx_EnAlign 0x00000100 /* 1:Enable Alignment */ -#define Rx_IgnoreCRC 0x00000040 /* 1:Ignore CRC Value */ -#define Rx_StripCRC 0x00000010 /* 1:Strip CRC Value */ -#define Rx_ShortEn 0x00000008 /* 1:Short Enable */ -#define Rx_LongEn 0x00000004 /* 1:Long Enable */ -#define Rx_RxHalt 0x00000002 /* 1:Receive Halt Request */ -#define Rx_RxEn 0x00000001 /* 1:Receive Intrrupt Enable */ - -/* Rx_Stat bit asign ------------------------------------------------------- */ -#define Rx_Halted 0x00008000 /* Rx Halted */ -#define Rx_Good 0x00004000 /* Rx Good */ -#define Rx_RxPar 0x00002000 /* Rx Parity Error */ - /* 0x00001000 not use */ -#define Rx_LongErr 0x00000800 /* Rx Long Error */ -#define Rx_Over 0x00000400 /* Rx Overflow */ -#define Rx_CRCErr 0x00000200 /* Rx CRC Error */ -#define Rx_Align 0x00000100 /* Rx Alignment Error */ -#define Rx_10Stat 0x00000080 /* Rx 10Mbps Status */ -#define Rx_IntRx 0x00000040 /* Rx Interrupt */ -#define Rx_CtlRecd 0x00000020 /* Rx Control Receive */ - -#define Rx_Stat_Mask 0x0000EFC0 /* Rx All Status Mask */ - -/* Int_En bit asign -------------------------------------------------------- */ -#define Int_NRAbtEn 0x00000800 /* 1:Non-recoverable Abort Enable */ -#define Int_TxCtlCmpEn 0x00000400 /* 1:Transmit Control Complete Enable */ -#define Int_DmParErrEn 0x00000200 /* 1:DMA Parity Error Enable */ -#define Int_DParDEn 0x00000100 /* 1:Data Parity Error Enable */ -#define Int_EarNotEn 0x00000080 /* 1:Early Notify Enable */ -#define Int_DParErrEn 0x00000040 /* 1:Detected Parity Error Enable */ -#define Int_SSysErrEn 0x00000020 /* 1:Signalled System Error Enable */ -#define Int_RMasAbtEn 0x00000010 /* 1:Received Master Abort Enable */ -#define Int_RTargAbtEn 0x00000008 /* 1:Received Target Abort Enable */ -#define Int_STargAbtEn 0x00000004 /* 1:Signalled Target Abort Enable */ -#define Int_BLExEn 0x00000002 /* 1:Buffer List Exhausted Enable */ -#define Int_FDAExEn 0x00000001 /* 1:Free Descriptor Area */ - /* Exhausted Enable */ - -/* Int_Src bit asign ------------------------------------------------------- */ -#define Int_NRabt 0x00004000 /* 1:Non Recoverable error */ -#define Int_DmParErrStat 0x00002000 /* 1:DMA Parity Error & Clear */ -#define Int_BLEx 0x00001000 /* 1:Buffer List Empty & Clear */ -#define Int_FDAEx 0x00000800 /* 1:FDA Empty & Clear */ -#define Int_IntNRAbt 0x00000400 /* 1:Non Recoverable Abort */ -#define Int_IntCmp 0x00000200 /* 1:MAC control packet complete */ -#define Int_IntExBD 0x00000100 /* 1:Interrupt Extra BD & Clear */ -#define Int_DmParErr 0x00000080 /* 1:DMA Parity Error & Clear */ -#define Int_IntEarNot 0x00000040 /* 1:Receive Data write & Clear */ -#define Int_SWInt 0x00000020 /* 1:Software request & Clear */ -#define Int_IntBLEx 0x00000010 /* 1:Buffer List Empty & Clear */ -#define Int_IntFDAEx 0x00000008 /* 1:FDA Empty & Clear */ -#define Int_IntPCI 0x00000004 /* 1:PCI controller & Clear */ -#define Int_IntMacRx 0x00000002 /* 1:Rx controller & Clear */ -#define Int_IntMacTx 0x00000001 /* 1:Tx controller & Clear */ - -/* MD_CA bit asign --------------------------------------------------------- */ -#define MD_CA_PreSup 0x00001000 /* 1:Preamble Supress */ -#define MD_CA_Busy 0x00000800 /* 1:Busy (Start Operation) */ -#define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */ - - -/* MII register offsets */ -#define MII_CONTROL 0x0000 -#define MII_STATUS 0x0001 -#define MII_PHY_ID0 0x0002 -#define MII_PHY_ID1 0x0003 -#define MII_ANAR 0x0004 -#define MII_ANLPAR 0x0005 -#define MII_ANER 0x0006 -/* MII Control register bit definitions. */ -#define MIICNTL_FDX 0x0100 -#define MIICNTL_RST_AUTO 0x0200 -#define MIICNTL_ISOLATE 0x0400 -#define MIICNTL_PWRDWN 0x0800 -#define MIICNTL_AUTO 0x1000 -#define MIICNTL_SPEED 0x2000 -#define MIICNTL_LPBK 0x4000 -#define MIICNTL_RESET 0x8000 -/* MII Status register bit significance. */ -#define MIISTAT_EXT 0x0001 -#define MIISTAT_JAB 0x0002 -#define MIISTAT_LINK 0x0004 -#define MIISTAT_CAN_AUTO 0x0008 -#define MIISTAT_FAULT 0x0010 -#define MIISTAT_AUTO_DONE 0x0020 -#define MIISTAT_CAN_T 0x0800 -#define MIISTAT_CAN_T_FDX 0x1000 -#define MIISTAT_CAN_TX 0x2000 -#define MIISTAT_CAN_TX_FDX 0x4000 -#define MIISTAT_CAN_T4 0x8000 -/* MII Auto-Negotiation Expansion/RemoteEnd Register Bits */ -#define MII_AN_TX_FDX 0x0100 -#define MII_AN_TX_HDX 0x0080 -#define MII_AN_10_FDX 0x0040 -#define MII_AN_10_HDX 0x0020 - - -/* - * Descriptors - */ - -/* Frame descripter */ -struct FDesc { - volatile __u32 FDNext; - volatile __u32 FDSystem; - volatile __u32 FDStat; - volatile __u32 FDCtl; -}; - -/* Buffer descripter */ -struct BDesc { - volatile __u32 BuffData; - volatile __u32 BDCtl; -}; - -#define FD_ALIGN 16 - -/* Frame Descripter bit asign ---------------------------------------------- */ -#define FD_FDLength_MASK 0x0000FFFF /* Length MASK */ -#define FD_BDCnt_MASK 0x001F0000 /* BD count MASK in FD */ -#define FD_FrmOpt_MASK 0x7C000000 /* Frame option MASK */ -#define FD_FrmOpt_BigEndian 0x40000000 /* Tx/Rx */ -#define FD_FrmOpt_IntTx 0x20000000 /* Tx only */ -#define FD_FrmOpt_NoCRC 0x10000000 /* Tx only */ -#define FD_FrmOpt_NoPadding 0x08000000 /* Tx only */ -#define FD_FrmOpt_Packing 0x04000000 /* Rx only */ -#define FD_CownsFD 0x80000000 /* FD Controller owner bit */ -#define FD_Next_EOL 0x00000001 /* FD EOL indicator */ -#define FD_BDCnt_SHIFT 16 - -/* Buffer Descripter bit asign --------------------------------------------- */ -#define BD_BuffLength_MASK 0x0000FFFF /* Recieve Data Size */ -#define BD_RxBDID_MASK 0x00FF0000 /* BD ID Number MASK */ -#define BD_RxBDSeqN_MASK 0x7F000000 /* Rx BD Sequence Number */ -#define BD_CownsBD 0x80000000 /* BD Controller owner bit */ -#define BD_RxBDID_SHIFT 16 -#define BD_RxBDSeqN_SHIFT 24 - - -/* Some useful constants. */ -#undef NO_CHECK_CARRIER /* Does not check No-Carrier with TP */ - -#ifdef NO_CHECK_CARRIER -#define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ - Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \ - Tx_En) /* maybe 0x7d01 */ -#else -#define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ - Tx_EnExColl | Tx_EnExDefer | Tx_EnUnder | \ - Tx_En) /* maybe 0x7f01 */ -#endif -#define RX_CTL_CMD (Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \ - | Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */ - -#define INT_EN_CMD (Int_NRAbtEn | \ - Int_DParDEn | Int_DParErrEn | \ - Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \ - Int_STargAbtEn | \ - Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/ - -/* Tuning parameters */ -#define DMA_BURST_SIZE 32 -#define TX_THRESHOLD 1024 - -#define FD_PAGE_NUM 2 -#define FD_PAGE_ORDER 1 -/* 16 + RX_BUF_PAGES * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*2 */ -#define RX_BUF_PAGES 8 /* >= 2 */ -#define RX_FD_NUM 250 /* >= 32 */ -#define TX_FD_NUM 128 - -struct TxFD { - struct FDesc fd; - struct BDesc bd; - struct BDesc unused; -}; - -struct RxFD { - struct FDesc fd; - struct BDesc bd[0]; /* variable length */ -}; - -struct FrFD { - struct FDesc fd; - struct BDesc bd[RX_BUF_PAGES]; -}; - - -extern unsigned long tc_readl(volatile __u32 *addr); -extern void tc_writel(unsigned long data, volatile __u32 *addr); - -dma_addr_t priv_dma_handle; - -/* Information that need to be kept for each board. */ -struct tc35815_local { - struct net_device *next_module; - - /* statistics */ - struct net_device_stats stats; - struct { - int max_tx_qlen; - int tx_ints; - int rx_ints; - } lstats; - - int tbusy; - int option; -#define TC35815_OPT_AUTO 0x00 -#define TC35815_OPT_10M 0x01 -#define TC35815_OPT_100M 0x02 -#define TC35815_OPT_FULLDUP 0x04 - int linkspeed; /* 10 or 100 */ - int fullduplex; - - /* - * Transmitting: Batch Mode. - * 1 BD in 1 TxFD. - * Receiving: Packing Mode. - * 1 circular FD for Free Buffer List. - * RX_BUG_PAGES BD in Free Buffer FD. - * One Free Buffer BD has PAGE_SIZE data buffer. - */ - struct pci_dev *pdev; - dma_addr_t fd_buf_dma_handle; - void * fd_buf; /* for TxFD, TxFD, FrFD */ - struct TxFD *tfd_base; - int tfd_start; - int tfd_end; - struct RxFD *rfd_base; - struct RxFD *rfd_limit; - struct RxFD *rfd_cur; - struct FrFD *fbl_ptr; - unsigned char fbl_curid; - dma_addr_t data_buf_dma_handle[RX_BUF_PAGES]; - void * data_buf[RX_BUF_PAGES]; /* packing */ - spinlock_t lock; -}; - -/* Index to functions, as function prototypes. */ - -static int __devinit tc35815_probe1(struct pci_dev *pdev, unsigned int base_addr, unsigned int irq); - -static int tc35815_open(struct net_device *dev); -static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev); -static void tc35815_tx_timeout(struct net_device *dev); -static irqreturn_t tc35815_interrupt(int irq, void *dev_id, struct pt_regs *regs); -static void tc35815_rx(struct net_device *dev); -static void tc35815_txdone(struct net_device *dev); -static int tc35815_close(struct net_device *dev); -static struct net_device_stats *tc35815_get_stats(struct net_device *dev); -static void tc35815_set_multicast_list(struct net_device *dev); - -static void tc35815_chip_reset(struct net_device *dev); -static void tc35815_chip_init(struct net_device *dev); -static void tc35815_phy_chip_init(struct net_device *dev); - -/* A list of all installed tc35815 devices. */ -static struct net_device *root_tc35815_dev = NULL; - -/* - * PCI device identifiers for "new style" Linux PCI Device Drivers - */ -static struct pci_device_id tc35815_pci_tbl[] = { - { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { 0, } -}; - -MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl); - -int -tc35815_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - int err = 0; - int ret; - unsigned long pci_memaddr; - unsigned int pci_irq_line; - - printk(KERN_INFO "tc35815_probe: found device %#08x.%#08x\n", ent->vendor, ent->device); - - err = pci_enable_device(pdev); - if (err) - return err; - - pci_memaddr = pci_resource_start (pdev, 1); - - printk(KERN_INFO " pci_memaddr=%#08lx resource_flags=%#08lx\n", pci_memaddr, pci_resource_flags (pdev, 0)); - - if (!pci_memaddr) { - printk(KERN_WARNING "no PCI MEM resources, aborting\n"); - ret = -ENODEV; - goto err_out; - } - pci_irq_line = pdev->irq; - /* irq disabled. */ - if (pci_irq_line == 0) { - printk(KERN_WARNING "no PCI irq, aborting\n"); - ret = -ENODEV; - goto err_out; - } - - ret = tc35815_probe1(pdev, pci_memaddr, pci_irq_line); - if (ret) - goto err_out; - - pci_set_master(pdev); - - return 0; - -err_out: - pci_disable_device(pdev); - return ret; -} - -static int __devinit tc35815_probe1(struct pci_dev *pdev, unsigned int base_addr, unsigned int irq) -{ - static unsigned version_printed = 0; - int i, ret; - struct tc35815_local *lp; - struct tc35815_regs *tr; - struct net_device *dev; - - /* Allocate a new 'dev' if needed. */ - dev = alloc_etherdev(sizeof(struct tc35815_local)); - if (dev == NULL) - return -ENOMEM; - - /* - * alloc_etherdev allocs and zeros dev->priv - */ - lp = dev->priv; - - if (tc35815_debug && version_printed++ == 0) - printk(KERN_DEBUG "%s", version); - - /* Fill in the 'dev' fields. */ - dev->irq = irq; - dev->base_addr = (unsigned long)ioremap(base_addr, - sizeof(struct tc35815_regs)); - if (!dev->base_addr) { - ret = -ENOMEM; - goto err_out; - } - tr = (struct tc35815_regs*)dev->base_addr; - - tc35815_chip_reset(dev); - - /* Retrieve and print the ethernet address. */ - while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) - ; - for (i = 0; i < 6; i += 2) { - unsigned short data; - tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl); - while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) - ; - data = tc_readl(&tr->PROM_Data); - dev->dev_addr[i] = data & 0xff; - dev->dev_addr[i+1] = data >> 8; - } - - /* Initialize the device structure. */ - lp->pdev = pdev; - lp->next_module = root_tc35815_dev; - root_tc35815_dev = dev; - - spin_lock_init(&lp->lock); - - if (dev->mem_start > 0) { - lp->option = dev->mem_start; - if ((lp->option & TC35815_OPT_10M) && - (lp->option & TC35815_OPT_100M)) { - /* if both speed speficied, auto select. */ - lp->option &= ~(TC35815_OPT_10M | TC35815_OPT_100M); - } - } - //XXX fixme - lp->option |= TC35815_OPT_10M; - - /* do auto negotiation */ - tc35815_phy_chip_init(dev); - - dev->open = tc35815_open; - dev->stop = tc35815_close; - dev->tx_timeout = tc35815_tx_timeout; - dev->watchdog_timeo = TX_TIMEOUT; - dev->hard_start_xmit = tc35815_send_packet; - dev->get_stats = tc35815_get_stats; - dev->set_multicast_list = tc35815_set_multicast_list; - SET_MODULE_OWNER(dev); - SET_NETDEV_DEV(dev, &pdev->dev); - - ret = register_netdev(dev); - if (ret) - goto err_out_iounmap; - - printk(KERN_INFO "%s: %s found at %#x, irq %d, MAC", - dev->name, cardname, base_addr, irq); - for (i = 0; i < 6; i++) - printk(" %2.2x", dev->dev_addr[i]); - printk("\n"); - printk(KERN_INFO "%s: linkspeed %dMbps, %s Duplex\n", - dev->name, lp->linkspeed, lp->fullduplex ? "Full" : "Half"); - - return 0; - -err_out_iounmap: - iounmap((void *) dev->base_addr); -err_out: - free_netdev(dev); - return ret; -} - - -static int -tc35815_init_queues(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - int i; - unsigned long fd_addr; - - if (!lp->fd_buf) { - if (sizeof(struct FDesc) + - sizeof(struct BDesc) * RX_BUF_PAGES + - sizeof(struct FDesc) * RX_FD_NUM + - sizeof(struct TxFD) * TX_FD_NUM > PAGE_SIZE * FD_PAGE_NUM) { - printk(KERN_WARNING "%s: Invalid Queue Size.\n", dev->name); - return -ENOMEM; - } - - if ((lp->fd_buf = (void *)__get_free_pages(GFP_KERNEL, FD_PAGE_ORDER)) == 0) - return -ENOMEM; - for (i = 0; i < RX_BUF_PAGES; i++) { - if ((lp->data_buf[i] = (void *)get_zeroed_page(GFP_KERNEL)) == 0) { - while (--i >= 0) { - free_page((unsigned long)lp->data_buf[i]); - lp->data_buf[i] = 0; - } - free_page((unsigned long)lp->fd_buf); - lp->fd_buf = 0; - return -ENOMEM; - } -#ifdef __mips__ - dma_cache_wback_inv((unsigned long)lp->data_buf[i], PAGE_SIZE * FD_PAGE_NUM); -#endif - } -#ifdef __mips__ - dma_cache_wback_inv((unsigned long)lp->fd_buf, PAGE_SIZE * FD_PAGE_NUM); -#endif - } else { - clear_page(lp->fd_buf); -#ifdef __mips__ - dma_cache_wback_inv((unsigned long)lp->fd_buf, PAGE_SIZE * FD_PAGE_NUM); -#endif - } -#ifdef __mips__ - fd_addr = (unsigned long)vtonocache(lp->fd_buf); -#else - fd_addr = (unsigned long)lp->fd_buf; -#endif - - /* Free Descriptors (for Receive) */ - lp->rfd_base = (struct RxFD *)fd_addr; - fd_addr += sizeof(struct RxFD) * RX_FD_NUM; - for (i = 0; i < RX_FD_NUM; i++) { - lp->rfd_base[i].fd.FDCtl = cpu_to_le32(FD_CownsFD); - } - lp->rfd_cur = lp->rfd_base; - lp->rfd_limit = (struct RxFD *)(fd_addr - - sizeof(struct FDesc) - - sizeof(struct BDesc) * 30); - - /* Transmit Descriptors */ - lp->tfd_base = (struct TxFD *)fd_addr; - fd_addr += sizeof(struct TxFD) * TX_FD_NUM; - for (i = 0; i < TX_FD_NUM; i++) { - lp->tfd_base[i].fd.FDNext = cpu_to_le32(virt_to_bus(&lp->tfd_base[i+1])); - lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0); - lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0); - } - lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(virt_to_bus(&lp->tfd_base[0])); - lp->tfd_start = 0; - lp->tfd_end = 0; - - /* Buffer List (for Receive) */ - lp->fbl_ptr = (struct FrFD *)fd_addr; - lp->fbl_ptr->fd.FDNext = cpu_to_le32(virt_to_bus(lp->fbl_ptr)); - lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_PAGES | FD_CownsFD); - for (i = 0; i < RX_BUF_PAGES; i++) { - lp->fbl_ptr->bd[i].BuffData = cpu_to_le32(virt_to_bus(lp->data_buf[i])); - /* BDID is index of FrFD.bd[] */ - lp->fbl_ptr->bd[i].BDCtl = - cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) | PAGE_SIZE); - } - lp->fbl_curid = 0; - - return 0; -} - -static void -tc35815_clear_queues(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - int i; - - for (i = 0; i < TX_FD_NUM; i++) { - struct sk_buff *skb = (struct sk_buff *) - le32_to_cpu(lp->tfd_base[i].fd.FDSystem); - if (skb) - dev_kfree_skb_any(skb); - lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0); - } - - tc35815_init_queues(dev); -} - -static void -tc35815_free_queues(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - int i; - - if (lp->tfd_base) { - for (i = 0; i < TX_FD_NUM; i++) { - struct sk_buff *skb = (struct sk_buff *) - le32_to_cpu(lp->tfd_base[i].fd.FDSystem); - if (skb) - dev_kfree_skb_any(skb); - lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0); - } - } - - lp->rfd_base = NULL; - lp->rfd_base = NULL; - lp->rfd_limit = NULL; - lp->rfd_cur = NULL; - lp->fbl_ptr = NULL; - - for (i = 0; i < RX_BUF_PAGES; i++) { - if (lp->data_buf[i]) - free_page((unsigned long)lp->data_buf[i]); - lp->data_buf[i] = 0; - } - if (lp->fd_buf) - __free_pages(lp->fd_buf, FD_PAGE_ORDER); - lp->fd_buf = NULL; -} - -static void -dump_txfd(struct TxFD *fd) -{ - printk("TxFD(%p): %08x %08x %08x %08x\n", fd, - le32_to_cpu(fd->fd.FDNext), - le32_to_cpu(fd->fd.FDSystem), - le32_to_cpu(fd->fd.FDStat), - le32_to_cpu(fd->fd.FDCtl)); - printk("BD: "); - printk(" %08x %08x", - le32_to_cpu(fd->bd.BuffData), - le32_to_cpu(fd->bd.BDCtl)); - printk("\n"); -} - -static int -dump_rxfd(struct RxFD *fd) -{ - int i, bd_count = (le32_to_cpu(fd->fd.FDCtl) & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; - if (bd_count > 8) - bd_count = 8; - printk("RxFD(%p): %08x %08x %08x %08x\n", fd, - le32_to_cpu(fd->fd.FDNext), - le32_to_cpu(fd->fd.FDSystem), - le32_to_cpu(fd->fd.FDStat), - le32_to_cpu(fd->fd.FDCtl)); - if (le32_to_cpu(fd->fd.FDCtl) & FD_CownsFD) - return 0; - printk("BD: "); - for (i = 0; i < bd_count; i++) - printk(" %08x %08x", - le32_to_cpu(fd->bd[i].BuffData), - le32_to_cpu(fd->bd[i].BDCtl)); - printk("\n"); - return bd_count; -} - -static void -dump_frfd(struct FrFD *fd) -{ - int i; - printk("FrFD(%p): %08x %08x %08x %08x\n", fd, - le32_to_cpu(fd->fd.FDNext), - le32_to_cpu(fd->fd.FDSystem), - le32_to_cpu(fd->fd.FDStat), - le32_to_cpu(fd->fd.FDCtl)); - printk("BD: "); - for (i = 0; i < RX_BUF_PAGES; i++) - printk(" %08x %08x", - le32_to_cpu(fd->bd[i].BuffData), - le32_to_cpu(fd->bd[i].BDCtl)); - printk("\n"); -} - -static void -panic_queues(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - int i; - - printk("TxFD base %p, start %d, end %d\n", - lp->tfd_base, lp->tfd_start, lp->tfd_end); - printk("RxFD base %p limit %p cur %p\n", - lp->rfd_base, lp->rfd_limit, lp->rfd_cur); - printk("FrFD %p\n", lp->fbl_ptr); - for (i = 0; i < TX_FD_NUM; i++) - dump_txfd(&lp->tfd_base[i]); - for (i = 0; i < RX_FD_NUM; i++) { - int bd_count = dump_rxfd(&lp->rfd_base[i]); - i += (bd_count + 1) / 2; /* skip BDs */ - } - dump_frfd(lp->fbl_ptr); - panic("%s: Illegal queue state.", dev->name); -} - -#if 0 -static void print_buf(char *add, int length) -{ - int i; - int len = length; - - printk("print_buf(%08x)(%x)\n", (unsigned int) add,length); - - if (len > 100) - len = 100; - for (i = 0; i < len; i++) { - printk(" %2.2X", (unsigned char) add[i]); - if (!(i % 16)) - printk("\n"); - } - printk("\n"); -} -#endif - -static void print_eth(char *add) -{ - int i; - - printk("print_eth(%08x)\n", (unsigned int) add); - for (i = 0; i < 6; i++) - printk(" %2.2X", (unsigned char) add[i + 6]); - printk(" =>"); - for (i = 0; i < 6; i++) - printk(" %2.2X", (unsigned char) add[i]); - printk(" : %2.2X%2.2X\n", (unsigned char) add[12], (unsigned char) add[13]); -} - -/* - * Open/initialize the board. This is called (in the current kernel) - * sometime after booting when the 'ifconfig' program is run. - * - * This routine should set everything up anew at each open, even - * registers that "should" only need to be set once at boot, so that - * there is non-reboot way to recover if something goes wrong. - */ -static int -tc35815_open(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - /* - * This is used if the interrupt line can turned off (shared). - * See 3c503.c for an example of selecting the IRQ at config-time. - */ - - if (dev->irq == 0 || - request_irq(dev->irq, &tc35815_interrupt, SA_SHIRQ, cardname, dev)) { - return -EAGAIN; - } - - tc35815_chip_reset(dev); - - if (tc35815_init_queues(dev) != 0) { - free_irq(dev->irq, dev); - return -EAGAIN; - } - - /* Reset the hardware here. Don't forget to set the station address. */ - tc35815_chip_init(dev); - - lp->tbusy = 0; - netif_start_queue(dev); - - return 0; -} - -static void tc35815_tx_timeout(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs *)dev->base_addr; - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - printk(KERN_WARNING "%s: transmit timed out, status %#lx\n", - dev->name, tc_readl(&tr->Tx_Stat)); - /* Try to restart the adaptor. */ - tc35815_chip_reset(dev); - tc35815_clear_queues(dev); - tc35815_chip_init(dev); - lp->tbusy=0; - spin_unlock_irqrestore(&lp->lock, flags); - dev->trans_start = jiffies; - netif_wake_queue(dev); -} - -static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs *)dev->base_addr; - - if (netif_queue_stopped(dev)) { - /* - * If we get here, some higher level has decided we are broken. - * There should really be a "kick me" function call instead. - */ - int tickssofar = jiffies - dev->trans_start; - if (tickssofar < 5) - return 1; - printk(KERN_WARNING "%s: transmit timed out, status %#lx\n", - dev->name, tc_readl(&tr->Tx_Stat)); - /* Try to restart the adaptor. */ - tc35815_chip_reset(dev); - tc35815_clear_queues(dev); - tc35815_chip_init(dev); - lp->tbusy=0; - dev->trans_start = jiffies; - netif_wake_queue(dev); - } - - /* - * Block a timer-based transmit from overlapping. This could better be - * done with atomic_swap(1, lp->tbusy), but set_bit() works as well. - */ - if (test_and_set_bit(0, (void*)&lp->tbusy) != 0) { - printk(KERN_WARNING "%s: Transmitter access conflict.\n", dev->name); - dev_kfree_skb_any(skb); - } else { - short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; - unsigned char *buf = skb->data; - struct TxFD *txfd = &lp->tfd_base[lp->tfd_start]; - unsigned long flags; - lp->stats.tx_bytes += skb->len; - - -#ifdef __mips__ - dma_cache_wback_inv((unsigned long)buf, length); -#endif - - spin_lock_irqsave(&lp->lock, flags); - - /* failsafe... */ - if (lp->tfd_start != lp->tfd_end) - tc35815_txdone(dev); - - - txfd->bd.BuffData = cpu_to_le32(virt_to_bus(buf)); - - txfd->bd.BDCtl = cpu_to_le32(length); - txfd->fd.FDSystem = cpu_to_le32((__u32)skb); - txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT)); - - if (lp->tfd_start == lp->tfd_end) { - /* Start DMA Transmitter. */ - txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL); -#ifdef GATHER_TXINT - txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); -#endif - if (tc35815_debug > 2) { - printk("%s: starting TxFD.\n", dev->name); - dump_txfd(txfd); - if (tc35815_debug > 3) - print_eth(buf); - } - tc_writel(virt_to_bus(txfd), &tr->TxFrmPtr); - } else { - txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL); - if (tc35815_debug > 2) { - printk("%s: queueing TxFD.\n", dev->name); - dump_txfd(txfd); - if (tc35815_debug > 3) - print_eth(buf); - } - } - lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM; - - dev->trans_start = jiffies; - - if ((lp->tfd_start + 1) % TX_FD_NUM != lp->tfd_end) { - /* we can send another packet */ - lp->tbusy = 0; - netif_start_queue(dev); - } else { - netif_stop_queue(dev); - if (tc35815_debug > 1) - printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name); - } - spin_unlock_irqrestore(&lp->lock, flags); - } - - return 0; -} - -#define FATAL_ERROR_INT \ - (Int_IntPCI | Int_DmParErr | Int_IntNRAbt) -static void tc35815_fatal_error_interrupt(struct net_device *dev, int status) -{ - static int count; - printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):", - dev->name, status); - - if (status & Int_IntPCI) - printk(" IntPCI"); - if (status & Int_DmParErr) - printk(" DmParErr"); - if (status & Int_IntNRAbt) - printk(" IntNRAbt"); - printk("\n"); - if (count++ > 100) - panic("%s: Too many fatal errors.", dev->name); - printk(KERN_WARNING "%s: Resetting %s...\n", dev->name, cardname); - /* Try to restart the adaptor. */ - tc35815_chip_reset(dev); - tc35815_clear_queues(dev); - tc35815_chip_init(dev); -} - -/* - * The typical workload of the driver: - * Handle the network interface interrupts. - */ -static irqreturn_t tc35815_interrupt(int irq, void *dev_id, struct pt_regs * regs) -{ - struct net_device *dev = dev_id; - struct tc35815_regs *tr; - struct tc35815_local *lp; - int status, boguscount = 0; - int handled = 0; - - if (dev == NULL) { - printk(KERN_WARNING "%s: irq %d for unknown device.\n", cardname, irq); - return IRQ_NONE; - } - - tr = (struct tc35815_regs*)dev->base_addr; - lp = dev->priv; - - do { - status = tc_readl(&tr->Int_Src); - if (status == 0) - break; - handled = 1; - tc_writel(status, &tr->Int_Src); /* write to clear */ - - /* Fatal errors... */ - if (status & FATAL_ERROR_INT) { - tc35815_fatal_error_interrupt(dev, status); - break; - } - /* recoverable errors */ - if (status & Int_IntFDAEx) { - /* disable FDAEx int. (until we make rooms...) */ - tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En); - printk(KERN_WARNING - "%s: Free Descriptor Area Exhausted (%#x).\n", - dev->name, status); - lp->stats.rx_dropped++; - } - if (status & Int_IntBLEx) { - /* disable BLEx int. (until we make rooms...) */ - tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En); - printk(KERN_WARNING - "%s: Buffer List Exhausted (%#x).\n", - dev->name, status); - lp->stats.rx_dropped++; - } - if (status & Int_IntExBD) { - printk(KERN_WARNING - "%s: Excessive Buffer Descriptiors (%#x).\n", - dev->name, status); - lp->stats.rx_length_errors++; - } - /* normal notification */ - if (status & Int_IntMacRx) { - /* Got a packet(s). */ - lp->lstats.rx_ints++; - tc35815_rx(dev); - } - if (status & Int_IntMacTx) { - lp->lstats.tx_ints++; - tc35815_txdone(dev); - } - } while (++boguscount < 20) ; - - return IRQ_RETVAL(handled); -} - -/* We have a good packet(s), get it/them out of the buffers. */ -static void -tc35815_rx(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - unsigned int fdctl; - int i; - int buf_free_count = 0; - int fd_free_count = 0; - - while (!((fdctl = le32_to_cpu(lp->rfd_cur->fd.FDCtl)) & FD_CownsFD)) { - int status = le32_to_cpu(lp->rfd_cur->fd.FDStat); - int pkt_len = fdctl & FD_FDLength_MASK; - struct RxFD *next_rfd; - int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; - - if (tc35815_debug > 2) - dump_rxfd(lp->rfd_cur); - if (status & Rx_Good) { - /* Malloc up new buffer. */ - struct sk_buff *skb; - unsigned char *data; - int cur_bd, offset; - - lp->stats.rx_bytes += pkt_len; - - skb = dev_alloc_skb(pkt_len + 2); /* +2: for reserve */ - if (skb == NULL) { - printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", - dev->name); - lp->stats.rx_dropped++; - break; - } - skb_reserve(skb, 2); /* 16 bit alignment */ - skb->dev = dev; - - data = skb_put(skb, pkt_len); - - /* copy from receive buffer */ - cur_bd = 0; - offset = 0; - while (offset < pkt_len && cur_bd < bd_count) { - int len = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BDCtl) & - BD_BuffLength_MASK; - void *rxbuf = - bus_to_virt(le32_to_cpu(lp->rfd_cur->bd[cur_bd].BuffData)); -#ifdef __mips__ - dma_cache_inv((unsigned long)rxbuf, len); -#endif - memcpy(data + offset, rxbuf, len); - offset += len; - cur_bd++; - } -#if 0 - print_buf(data,pkt_len); -#endif - if (tc35815_debug > 3) - print_eth(data); - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - lp->stats.rx_packets++; - } else { - lp->stats.rx_errors++; - /* WORKAROUND: LongErr and CRCErr means Overflow. */ - if ((status & Rx_LongErr) && (status & Rx_CRCErr)) { - status &= ~(Rx_LongErr|Rx_CRCErr); - status |= Rx_Over; - } - if (status & Rx_LongErr) lp->stats.rx_length_errors++; - if (status & Rx_Over) lp->stats.rx_fifo_errors++; - if (status & Rx_CRCErr) lp->stats.rx_crc_errors++; - if (status & Rx_Align) lp->stats.rx_frame_errors++; - } - - if (bd_count > 0) { - /* put Free Buffer back to controller */ - int bdctl = le32_to_cpu(lp->rfd_cur->bd[bd_count - 1].BDCtl); - unsigned char id = - (bdctl & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT; - if (id >= RX_BUF_PAGES) { - printk("%s: invalid BDID.\n", dev->name); - panic_queues(dev); - } - /* free old buffers */ - while (lp->fbl_curid != id) { - bdctl = le32_to_cpu(lp->fbl_ptr->bd[lp->fbl_curid].BDCtl); - if (bdctl & BD_CownsBD) { - printk("%s: Freeing invalid BD.\n", - dev->name); - panic_queues(dev); - } - /* pass BD to controler */ - /* Note: BDLength was modified by chip. */ - lp->fbl_ptr->bd[lp->fbl_curid].BDCtl = - cpu_to_le32(BD_CownsBD | - (lp->fbl_curid << BD_RxBDID_SHIFT) | - PAGE_SIZE); - lp->fbl_curid = - (lp->fbl_curid + 1) % RX_BUF_PAGES; - if (tc35815_debug > 2) { - printk("%s: Entering new FBD %d\n", - dev->name, lp->fbl_curid); - dump_frfd(lp->fbl_ptr); - } - buf_free_count++; - } - } - - /* put RxFD back to controller */ - next_rfd = bus_to_virt(le32_to_cpu(lp->rfd_cur->fd.FDNext)); -#ifdef __mips__ - next_rfd = (struct RxFD *)vtonocache(next_rfd); -#endif - if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) { - printk("%s: RxFD FDNext invalid.\n", dev->name); - panic_queues(dev); - } - for (i = 0; i < (bd_count + 1) / 2 + 1; i++) { - /* pass FD to controler */ - lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead); /* for debug */ - lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD); - lp->rfd_cur++; - fd_free_count++; - } - - lp->rfd_cur = next_rfd; - } - - /* re-enable BL/FDA Exhaust interrupts. */ - if (fd_free_count) { - tc_writel(tc_readl(&tr->Int_En) | Int_FDAExEn, &tr->Int_En); - if (buf_free_count) - tc_writel(tc_readl(&tr->Int_En) | Int_BLExEn, &tr->Int_En); - } -} - -#ifdef NO_CHECK_CARRIER -#define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_LateColl|Tx_TxPar|Tx_SQErr) -#else -#define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_NCarr|Tx_LateColl|Tx_TxPar|Tx_SQErr) -#endif - -static void -tc35815_check_tx_stat(struct net_device *dev, int status) -{ - struct tc35815_local *lp = dev->priv; - const char *msg = NULL; - - /* count collisions */ - if (status & Tx_ExColl) - lp->stats.collisions += 16; - if (status & Tx_TxColl_MASK) - lp->stats.collisions += status & Tx_TxColl_MASK; - - /* WORKAROUND: ignore LostCrS in full duplex operation */ - if (lp->fullduplex) - status &= ~Tx_NCarr; - - if (!(status & TX_STA_ERR)) { - /* no error. */ - lp->stats.tx_packets++; - return; - } - - lp->stats.tx_errors++; - if (status & Tx_ExColl) { - lp->stats.tx_aborted_errors++; - msg = "Excessive Collision."; - } - if (status & Tx_Under) { - lp->stats.tx_fifo_errors++; - msg = "Tx FIFO Underrun."; - } - if (status & Tx_Defer) { - lp->stats.tx_fifo_errors++; - msg = "Excessive Deferral."; - } -#ifndef NO_CHECK_CARRIER - if (status & Tx_NCarr) { - lp->stats.tx_carrier_errors++; - msg = "Lost Carrier Sense."; - } -#endif - if (status & Tx_LateColl) { - lp->stats.tx_aborted_errors++; - msg = "Late Collision."; - } - if (status & Tx_TxPar) { - lp->stats.tx_fifo_errors++; - msg = "Transmit Parity Error."; - } - if (status & Tx_SQErr) { - lp->stats.tx_heartbeat_errors++; - msg = "Signal Quality Error."; - } - if (msg) - printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status); -} - -static void -tc35815_txdone(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - struct TxFD *txfd; - unsigned int fdctl; - int num_done = 0; - - txfd = &lp->tfd_base[lp->tfd_end]; - while (lp->tfd_start != lp->tfd_end && - !((fdctl = le32_to_cpu(txfd->fd.FDCtl)) & FD_CownsFD)) { - int status = le32_to_cpu(txfd->fd.FDStat); - struct sk_buff *skb; - unsigned long fdnext = le32_to_cpu(txfd->fd.FDNext); - - if (tc35815_debug > 2) { - printk("%s: complete TxFD.\n", dev->name); - dump_txfd(txfd); - } - tc35815_check_tx_stat(dev, status); - - skb = (struct sk_buff *)le32_to_cpu(txfd->fd.FDSystem); - if (skb) { - dev_kfree_skb_any(skb); - } - txfd->fd.FDSystem = cpu_to_le32(0); - - num_done++; - lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM; - txfd = &lp->tfd_base[lp->tfd_end]; - if ((fdnext & ~FD_Next_EOL) != virt_to_bus(txfd)) { - printk("%s: TxFD FDNext invalid.\n", dev->name); - panic_queues(dev); - } - if (fdnext & FD_Next_EOL) { - /* DMA Transmitter has been stopping... */ - if (lp->tfd_end != lp->tfd_start) { - int head = (lp->tfd_start + TX_FD_NUM - 1) % TX_FD_NUM; - struct TxFD* txhead = &lp->tfd_base[head]; - int qlen = (lp->tfd_start + TX_FD_NUM - - lp->tfd_end) % TX_FD_NUM; - - if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) { - printk("%s: TxFD FDCtl invalid.\n", dev->name); - panic_queues(dev); - } - /* log max queue length */ - if (lp->lstats.max_tx_qlen < qlen) - lp->lstats.max_tx_qlen = qlen; - - - /* start DMA Transmitter again */ - txhead->fd.FDNext |= cpu_to_le32(FD_Next_EOL); -#ifdef GATHER_TXINT - txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); -#endif - if (tc35815_debug > 2) { - printk("%s: start TxFD on queue.\n", - dev->name); - dump_txfd(txfd); - } - tc_writel(virt_to_bus(txfd), &tr->TxFrmPtr); - } - break; - } - } - - if (num_done > 0 && lp->tbusy) { - lp->tbusy = 0; - netif_start_queue(dev); - } -} - -/* The inverse routine to tc35815_open(). */ -static int -tc35815_close(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - - lp->tbusy = 1; - netif_stop_queue(dev); - - /* Flush the Tx and disable Rx here. */ - - tc35815_chip_reset(dev); - free_irq(dev->irq, dev); - - tc35815_free_queues(dev); - - return 0; -} - -/* - * Get the current statistics. - * This may be called with the card open or closed. - */ -static struct net_device_stats *tc35815_get_stats(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - unsigned long flags; - - if (netif_running(dev)) { - spin_lock_irqsave(&lp->lock, flags); - /* Update the statistics from the device registers. */ - lp->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt); - spin_unlock_irqrestore(&lp->lock, flags); - } - - return &lp->stats; -} - -static void tc35815_set_cam_entry(struct tc35815_regs *tr, int index, unsigned char *addr) -{ - int cam_index = index * 6; - unsigned long cam_data; - unsigned long saved_addr; - saved_addr = tc_readl(&tr->CAM_Adr); - - if (tc35815_debug > 1) { - int i; - printk(KERN_DEBUG "%s: CAM %d:", cardname, index); - for (i = 0; i < 6; i++) - printk(" %02x", addr[i]); - printk("\n"); - } - if (index & 1) { - /* read modify write */ - tc_writel(cam_index - 2, &tr->CAM_Adr); - cam_data = tc_readl(&tr->CAM_Data) & 0xffff0000; - cam_data |= addr[0] << 8 | addr[1]; - tc_writel(cam_data, &tr->CAM_Data); - /* write whole word */ - tc_writel(cam_index + 2, &tr->CAM_Adr); - cam_data = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5]; - tc_writel(cam_data, &tr->CAM_Data); - } else { - /* write whole word */ - tc_writel(cam_index, &tr->CAM_Adr); - cam_data = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; - tc_writel(cam_data, &tr->CAM_Data); - /* read modify write */ - tc_writel(cam_index + 4, &tr->CAM_Adr); - cam_data = tc_readl(&tr->CAM_Data) & 0x0000ffff; - cam_data |= addr[4] << 24 | (addr[5] << 16); - tc_writel(cam_data, &tr->CAM_Data); - } - - if (tc35815_debug > 2) { - int i; - for (i = cam_index / 4; i < cam_index / 4 + 2; i++) { - tc_writel(i * 4, &tr->CAM_Adr); - printk("CAM 0x%x: %08lx", - i * 4, tc_readl(&tr->CAM_Data)); - } - } - tc_writel(saved_addr, &tr->CAM_Adr); -} - - -/* - * Set or clear the multicast filter for this adaptor. - * num_addrs == -1 Promiscuous mode, receive all packets - * num_addrs == 0 Normal mode, clear multicast list - * num_addrs > 0 Multicast mode, receive normal and MC packets, - * and do best-effort filtering. - */ -static void -tc35815_set_multicast_list(struct net_device *dev) -{ - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - - if (dev->flags&IFF_PROMISC) - { - /* Enable promiscuous mode */ - tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl); - } - else if((dev->flags&IFF_ALLMULTI) || dev->mc_count > CAM_ENTRY_MAX - 3) - { - /* CAM 0, 1, 20 are reserved. */ - /* Disable promiscuous mode, use normal mode. */ - tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc, &tr->CAM_Ctl); - } - else if(dev->mc_count) - { - struct dev_mc_list* cur_addr = dev->mc_list; - int i; - int ena_bits = CAM_Ena_Bit(CAM_ENTRY_SOURCE); - - tc_writel(0, &tr->CAM_Ctl); - /* Walk the address list, and load the filter */ - for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) { - if (!cur_addr) - break; - /* entry 0,1 is reserved. */ - tc35815_set_cam_entry(tr, i + 2, cur_addr->dmi_addr); - ena_bits |= CAM_Ena_Bit(i + 2); - } - tc_writel(ena_bits, &tr->CAM_Ena); - tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); - } - else { - tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); - tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); - } -} - -static unsigned long tc_phy_read(struct net_device *dev, struct tc35815_regs *tr, int phy, int phy_reg) -{ - struct tc35815_local *lp = dev->priv; - unsigned long data; - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - - tc_writel(MD_CA_Busy | (phy << 5) | phy_reg, &tr->MD_CA); - while (tc_readl(&tr->MD_CA) & MD_CA_Busy) - ; - data = tc_readl(&tr->MD_Data); - spin_unlock_irqrestore(&lp->lock, flags); - return data; -} - -static void tc_phy_write(struct net_device *dev, unsigned long d, struct tc35815_regs *tr, int phy, int phy_reg) -{ - struct tc35815_local *lp = dev->priv; - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - - tc_writel(d, &tr->MD_Data); - tc_writel(MD_CA_Busy | MD_CA_Wr | (phy << 5) | phy_reg, &tr->MD_CA); - while (tc_readl(&tr->MD_CA) & MD_CA_Busy) - ; - spin_unlock_irqrestore(&lp->lock, flags); -} - -static void tc35815_phy_chip_init(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - static int first = 1; - unsigned short ctl; - - if (first) { - unsigned short id0, id1; - int count; - first = 0; - - /* first data written to the PHY will be an ID number */ - tc_phy_write(dev, 0, tr, 0, MII_CONTROL); /* ID:0 */ -#if 0 - tc_phy_write(dev, MIICNTL_RESET, tr, 0, MII_CONTROL); - printk(KERN_INFO "%s: Resetting PHY...", dev->name); - while (tc_phy_read(dev, tr, 0, MII_CONTROL) & MIICNTL_RESET) - ; - printk("\n"); - tc_phy_write(dev, MIICNTL_AUTO|MIICNTL_SPEED|MIICNTL_FDX, tr, 0, - MII_CONTROL); -#endif - id0 = tc_phy_read(dev, tr, 0, MII_PHY_ID0); - id1 = tc_phy_read(dev, tr, 0, MII_PHY_ID1); - printk(KERN_DEBUG "%s: PHY ID %04x %04x\n", dev->name, - id0, id1); - if (lp->option & TC35815_OPT_10M) { - lp->linkspeed = 10; - lp->fullduplex = (lp->option & TC35815_OPT_FULLDUP) != 0; - } else if (lp->option & TC35815_OPT_100M) { - lp->linkspeed = 100; - lp->fullduplex = (lp->option & TC35815_OPT_FULLDUP) != 0; - } else { - /* auto negotiation */ - unsigned long neg_result; - tc_phy_write(dev, MIICNTL_AUTO | MIICNTL_RST_AUTO, tr, 0, MII_CONTROL); - printk(KERN_INFO "%s: Auto Negotiation...", dev->name); - count = 0; - while (!(tc_phy_read(dev, tr, 0, MII_STATUS) & MIISTAT_AUTO_DONE)) { - if (count++ > 5000) { - printk(" failed. Assume 10Mbps\n"); - lp->linkspeed = 10; - lp->fullduplex = 0; - goto done; - } - if (count % 512 == 0) - printk("."); - mdelay(1); - } - printk(" done.\n"); - neg_result = tc_phy_read(dev, tr, 0, MII_ANLPAR); - if (neg_result & (MII_AN_TX_FDX | MII_AN_TX_HDX)) - lp->linkspeed = 100; - else - lp->linkspeed = 10; - if (neg_result & (MII_AN_TX_FDX | MII_AN_10_FDX)) - lp->fullduplex = 1; - else - lp->fullduplex = 0; - done: - ; - } - } - - ctl = 0; - if (lp->linkspeed == 100) - ctl |= MIICNTL_SPEED; - if (lp->fullduplex) - ctl |= MIICNTL_FDX; - tc_phy_write(dev, ctl, tr, 0, MII_CONTROL); - - if (lp->fullduplex) { - tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl); - } -} - -static void tc35815_chip_reset(struct net_device *dev) -{ - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - - /* reset the controller */ - tc_writel(MAC_Reset, &tr->MAC_Ctl); - while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) - ; - - tc_writel(0, &tr->MAC_Ctl); - - /* initialize registers to default value */ - tc_writel(0, &tr->DMA_Ctl); - tc_writel(0, &tr->TxThrsh); - tc_writel(0, &tr->TxPollCtr); - tc_writel(0, &tr->RxFragSize); - tc_writel(0, &tr->Int_En); - tc_writel(0, &tr->FDA_Bas); - tc_writel(0, &tr->FDA_Lim); - tc_writel(0xffffffff, &tr->Int_Src); /* Write 1 to clear */ - tc_writel(0, &tr->CAM_Ctl); - tc_writel(0, &tr->Tx_Ctl); - tc_writel(0, &tr->Rx_Ctl); - tc_writel(0, &tr->CAM_Ena); - (void)tc_readl(&tr->Miss_Cnt); /* Read to clear */ - -} - -static void tc35815_chip_init(struct net_device *dev) -{ - struct tc35815_local *lp = dev->priv; - struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr; - unsigned long flags; - unsigned long txctl = TX_CTL_CMD; - - tc35815_phy_chip_init(dev); - - /* load station address to CAM */ - tc35815_set_cam_entry(tr, CAM_ENTRY_SOURCE, dev->dev_addr); - - /* Enable CAM (broadcast and unicast) */ - tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); - tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); - - spin_lock_irqsave(&lp->lock, flags); - - tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl); - - tc_writel(RxFrag_EnPack | ETH_ZLEN, &tr->RxFragSize); /* Packing */ - tc_writel(0, &tr->TxPollCtr); /* Batch mode */ - tc_writel(TX_THRESHOLD, &tr->TxThrsh); - tc_writel(INT_EN_CMD, &tr->Int_En); - - /* set queues */ - tc_writel(virt_to_bus(lp->rfd_base), &tr->FDA_Bas); - tc_writel((unsigned long)lp->rfd_limit - (unsigned long)lp->rfd_base, - &tr->FDA_Lim); - /* - * Activation method: - * First, enable eht MAC Transmitter and the DMA Receive circuits. - * Then enable the DMA Transmitter and the MAC Receive circuits. - */ - tc_writel(virt_to_bus(lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */ - tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */ - /* start MAC transmitter */ - /* WORKAROUND: ignore LostCrS in full duplex operation */ - if (lp->fullduplex) - txctl = TX_CTL_CMD & ~Tx_EnLCarr; -#ifdef GATHER_TXINT - txctl &= ~Tx_EnComp; /* disable global tx completion int. */ -#endif - tc_writel(txctl, &tr->Tx_Ctl); -#if 0 /* No need to polling */ - tc_writel(virt_to_bus(lp->tfd_base), &tr->TxFrmPtr); /* start DMA transmitter */ -#endif - spin_unlock_irqrestore(&lp->lock, flags); -} - -/* XXX */ -void -tc35815_killall(void) -{ - struct net_device *dev; - - for (dev = root_tc35815_dev; dev; dev = ((struct tc35815_local *)dev->priv)->next_module) { - if (dev->flags&IFF_UP){ - dev->stop(dev); - } - } -} - -static struct pci_driver tc35815_driver = { - .name = TC35815_MODULE_NAME, - .probe = tc35815_probe, - .remove = NULL, - .id_table = tc35815_pci_tbl, -}; - -static int __init tc35815_init_module(void) -{ - return pci_module_init(&tc35815_driver); -} - -static void __exit tc35815_cleanup_module(void) -{ - struct net_device *next_dev; - - while (root_tc35815_dev) { - struct net_device *dev = root_tc35815_dev; - next_dev = ((struct tc35815_local *)dev->priv)->next_module; - iounmap((void *)(dev->base_addr)); - unregister_netdev(dev); - free_netdev(dev); - root_tc35815_dev = next_dev; - } -} -module_init(tc35815_init_module); -module_exit(tc35815_cleanup_module); |