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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-07-30 00:36:02 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 00:27:04 -0700
commit8df158ac36fa0937f51c372f0c2d0ad1b86ebe4c (patch)
tree320edf6c6b8ecc035b77ac8e91974d870490ad92 /drivers/net/tc35815.c
parentbcc9736c6c201b0992c9d0a5b5a30c35138e5782 (diff)
toshiba: Move the Toshiba drivers
Move the Toshiba ethernet drivers into drivers/net/ethernet/toshiba and make the necessary Kconfig and Makefile changes. CC: Geoff Levand <geoff@infradead.org> CC: Jens Osterkamp <Jens.Osterkamp@de.ibm.com> CC: Ishizaki Kou <kou.ishizaki@toshiba.co.jp> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/tc35815.c')
-rw-r--r--drivers/net/tc35815.c2228
1 files changed, 0 insertions, 2228 deletions
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
deleted file mode 100644
index 4a55a162dfe6..000000000000
--- a/drivers/net/tc35815.c
+++ /dev/null
@@ -1,2228 +0,0 @@
-/*
- * tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux.
- *
- * Based on skelton.c by Donald Becker.
- *
- * This driver is a replacement of older and less maintained version.
- * This is a header of the older version:
- * -----<snip>-----
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ahennessy@mvista.com
- * Copyright (C) 2000-2001 Toshiba Corporation
- * static const char *version =
- * "tc35815.c:v0.00 26/07/2000 by Toshiba Corporation\n";
- * -----<snip>-----
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * (C) Copyright TOSHIBA CORPORATION 2004-2005
- * All Rights Reserved.
- */
-
-#define DRV_VERSION "1.39"
-static const char *version = "tc35815.c:v" DRV_VERSION "\n";
-#define MODNAME "tc35815"
-
-#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/if_vlan.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/spinlock.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/phy.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/prefetch.h>
-#include <asm/io.h>
-#include <asm/byteorder.h>
-
-enum tc35815_chiptype {
- TC35815CF = 0,
- TC35815_NWU,
- TC35815_TX4939,
-};
-
-/* indexed by tc35815_chiptype, above */
-static const struct {
- const char *name;
-} chip_info[] __devinitdata = {
- { "TOSHIBA TC35815CF 10/100BaseTX" },
- { "TOSHIBA TC35815 with Wake on LAN" },
- { "TOSHIBA TC35815/TX4939" },
-};
-
-static DEFINE_PCI_DEVICE_TABLE(tc35815_pci_tbl) = {
- {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF), .driver_data = TC35815CF },
- {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_NWU), .driver_data = TC35815_NWU },
- {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939), .driver_data = TC35815_TX4939 },
- {0,}
-};
-MODULE_DEVICE_TABLE(pci, tc35815_pci_tbl);
-
-/* see MODULE_PARM_DESC */
-static struct tc35815_options {
- int speed;
- int duplex;
-} options;
-
-/*
- * Registers
- */
-struct tc35815_regs {
- __u32 DMA_Ctl; /* 0x00 */
- __u32 TxFrmPtr;
- __u32 TxThrsh;
- __u32 TxPollCtr;
- __u32 BLFrmPtr;
- __u32 RxFragSize;
- __u32 Int_En;
- __u32 FDA_Bas;
- __u32 FDA_Lim; /* 0x20 */
- __u32 Int_Src;
- __u32 unused0[2];
- __u32 PauseCnt;
- __u32 RemPauCnt;
- __u32 TxCtlFrmStat;
- __u32 unused1;
- __u32 MAC_Ctl; /* 0x40 */
- __u32 CAM_Ctl;
- __u32 Tx_Ctl;
- __u32 Tx_Stat;
- __u32 Rx_Ctl;
- __u32 Rx_Stat;
- __u32 MD_Data;
- __u32 MD_CA;
- __u32 CAM_Adr; /* 0x60 */
- __u32 CAM_Data;
- __u32 CAM_Ena;
- __u32 PROM_Ctl;
- __u32 PROM_Data;
- __u32 Algn_Cnt;
- __u32 CRC_Cnt;
- __u32 Miss_Cnt;
-};
-
-/*
- * Bit assignments
- */
-/* DMA_Ctl bit assign ------------------------------------------------------- */
-#define DMA_RxAlign 0x00c00000 /* 1:Reception Alignment */
-#define DMA_RxAlign_1 0x00400000
-#define DMA_RxAlign_2 0x00800000
-#define DMA_RxAlign_3 0x00c00000
-#define DMA_M66EnStat 0x00080000 /* 1:66MHz Enable State */
-#define DMA_IntMask 0x00040000 /* 1:Interrupt 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 assign ---------------------------------------------------- */
-#define RxFrag_EnPack 0x00008000 /* 1:Enable Packing */
-#define RxFrag_MinFragMask 0x00000ffc /* Minimum Fragment */
-
-/* MAC_Ctl bit assign ------------------------------------------------------- */
-#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 assign ------------------------------------------------------ */
-#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 assign ------------------------------------------------------- */
-#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 assign ------------------------------------------------------- */
-#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 assign -------------------------------------------------------- */
-#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 assign ------------------------------------------------------- */
-#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 assign -------------------------------------------------------- */
-#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 assign ------------------------------------------------------- */
-#define Rx_Halted 0x00008000 /* Rx Halted */
-#define Rx_Good 0x00004000 /* Rx Good */
-#define Rx_RxPar 0x00002000 /* Rx Parity Error */
-#define Rx_TypePkt 0x00001000 /* Rx Type Packet */
-#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_InLenErr 0x00000010 /* Rx In Range Frame Length Error */
-
-#define Rx_Stat_Mask 0x0000FFF0 /* Rx All Status Mask */
-
-/* Int_En bit assign -------------------------------------------------------- */
-#define Int_NRAbtEn 0x00000800 /* 1:Non-recoverable Abort Enable */
-#define Int_TxCtlCmpEn 0x00000400 /* 1:Transmit Ctl 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 assign ------------------------------------------------------- */
-#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 assign --------------------------------------------------------- */
-#define MD_CA_PreSup 0x00001000 /* 1:Preamble Suppress */
-#define MD_CA_Busy 0x00000800 /* 1:Busy (Start Operation) */
-#define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */
-
-
-/*
- * 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 assign ---------------------------------------------- */
-#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 assign --------------------------------------------- */
-#define BD_BuffLength_MASK 0x0000FFFF /* Receive 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. */
-
-#define TX_CTL_CMD (Tx_EnTxPar | Tx_EnLateColl | \
- Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \
- Tx_En) /* maybe 0x7b01 */
-/* Do not use Rx_StripCRC -- it causes trouble on BLEx/FDAEx condition */
-#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_DmParErrEn | Int_DParDEn | Int_DParErrEn | \
- Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \
- Int_STargAbtEn | \
- Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/
-#define DMA_CTL_CMD DMA_BURST_SIZE
-#define HAVE_DMA_RXALIGN(lp) likely((lp)->chiptype != TC35815CF)
-
-/* Tuning parameters */
-#define DMA_BURST_SIZE 32
-#define TX_THRESHOLD 1024
-/* used threshold with packet max byte for low pci transfer ability.*/
-#define TX_THRESHOLD_MAX 1536
-/* setting threshold max value when overrun error occurred this count. */
-#define TX_THRESHOLD_KEEP_LIMIT 10
-
-/* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */
-#define FD_PAGE_NUM 4
-#define RX_BUF_NUM 128 /* < 256 */
-#define RX_FD_NUM 256 /* >= 32 */
-#define TX_FD_NUM 128
-#if RX_CTL_CMD & Rx_LongEn
-#define RX_BUF_SIZE PAGE_SIZE
-#elif RX_CTL_CMD & Rx_StripCRC
-#define RX_BUF_SIZE \
- L1_CACHE_ALIGN(ETH_FRAME_LEN + VLAN_HLEN + NET_IP_ALIGN)
-#else
-#define RX_BUF_SIZE \
- L1_CACHE_ALIGN(ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN + NET_IP_ALIGN)
-#endif
-#define RX_FD_RESERVE (2 / 2) /* max 2 BD per RxFD */
-#define NAPI_WEIGHT 16
-
-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_NUM];
-};
-
-
-#define tc_readl(addr) ioread32(addr)
-#define tc_writel(d, addr) iowrite32(d, addr)
-
-#define TC35815_TX_TIMEOUT msecs_to_jiffies(400)
-
-/* Information that need to be kept for each controller. */
-struct tc35815_local {
- struct pci_dev *pci_dev;
-
- struct net_device *dev;
- struct napi_struct napi;
-
- /* statistics */
- struct {
- int max_tx_qlen;
- int tx_ints;
- int rx_ints;
- int tx_underrun;
- } lstats;
-
- /* Tx control lock. This protects the transmit buffer ring
- * state along with the "tx full" state of the driver. This
- * means all netif_queue flow control actions are protected
- * by this lock as well.
- */
- spinlock_t lock;
- spinlock_t rx_lock;
-
- struct mii_bus *mii_bus;
- struct phy_device *phy_dev;
- int duplex;
- int speed;
- int link;
- struct work_struct restart_work;
-
- /*
- * Transmitting: Batch Mode.
- * 1 BD in 1 TxFD.
- * Receiving: Non-Packing Mode.
- * 1 circular FD for Free Buffer List.
- * RX_BUF_NUM BD in Free Buffer FD.
- * One Free Buffer BD has ETH_FRAME_LEN data buffer.
- */
- void *fd_buf; /* for TxFD, RxFD, FrFD */
- dma_addr_t fd_buf_dma;
- struct TxFD *tfd_base;
- unsigned int tfd_start;
- unsigned int tfd_end;
- struct RxFD *rfd_base;
- struct RxFD *rfd_limit;
- struct RxFD *rfd_cur;
- struct FrFD *fbl_ptr;
- unsigned int fbl_count;
- struct {
- struct sk_buff *skb;
- dma_addr_t skb_dma;
- } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM];
- u32 msg_enable;
- enum tc35815_chiptype chiptype;
-};
-
-static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt)
-{
- return lp->fd_buf_dma + ((u8 *)virt - (u8 *)lp->fd_buf);
-}
-#ifdef DEBUG
-static inline void *fd_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus)
-{
- return (void *)((u8 *)lp->fd_buf + (bus - lp->fd_buf_dma));
-}
-#endif
-static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
- struct pci_dev *hwdev,
- dma_addr_t *dma_handle)
-{
- struct sk_buff *skb;
- skb = dev_alloc_skb(RX_BUF_SIZE);
- if (!skb)
- return NULL;
- *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(hwdev, *dma_handle)) {
- dev_kfree_skb_any(skb);
- return NULL;
- }
- skb_reserve(skb, 2); /* make IP header 4byte aligned */
- return skb;
-}
-
-static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle)
-{
- pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- dev_kfree_skb_any(skb);
-}
-
-/* Index to functions, as function prototypes. */
-
-static int tc35815_open(struct net_device *dev);
-static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t tc35815_interrupt(int irq, void *dev_id);
-static int tc35815_rx(struct net_device *dev, int limit);
-static int tc35815_poll(struct napi_struct *napi, int budget);
-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_tx_timeout(struct net_device *dev);
-static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void tc35815_poll_controller(struct net_device *dev);
-#endif
-static const struct ethtool_ops tc35815_ethtool_ops;
-
-/* Example routines you must write ;->. */
-static void tc35815_chip_reset(struct net_device *dev);
-static void tc35815_chip_init(struct net_device *dev);
-
-#ifdef DEBUG
-static void panic_queues(struct net_device *dev);
-#endif
-
-static void tc35815_restart_work(struct work_struct *work);
-
-static int tc_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-{
- struct net_device *dev = bus->priv;
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- unsigned long timeout = jiffies + HZ;
-
- tc_writel(MD_CA_Busy | (mii_id << 5) | (regnum & 0x1f), &tr->MD_CA);
- udelay(12); /* it takes 32 x 400ns at least */
- while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
- if (time_after(jiffies, timeout))
- return -EIO;
- cpu_relax();
- }
- return tc_readl(&tr->MD_Data) & 0xffff;
-}
-
-static int tc_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 val)
-{
- struct net_device *dev = bus->priv;
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- unsigned long timeout = jiffies + HZ;
-
- tc_writel(val, &tr->MD_Data);
- tc_writel(MD_CA_Busy | MD_CA_Wr | (mii_id << 5) | (regnum & 0x1f),
- &tr->MD_CA);
- udelay(12); /* it takes 32 x 400ns at least */
- while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
- if (time_after(jiffies, timeout))
- return -EIO;
- cpu_relax();
- }
- return 0;
-}
-
-static void tc_handle_link_change(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct phy_device *phydev = lp->phy_dev;
- unsigned long flags;
- int status_change = 0;
-
- spin_lock_irqsave(&lp->lock, flags);
- if (phydev->link &&
- (lp->speed != phydev->speed || lp->duplex != phydev->duplex)) {
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- u32 reg;
-
- reg = tc_readl(&tr->MAC_Ctl);
- reg |= MAC_HaltReq;
- tc_writel(reg, &tr->MAC_Ctl);
- if (phydev->duplex == DUPLEX_FULL)
- reg |= MAC_FullDup;
- else
- reg &= ~MAC_FullDup;
- tc_writel(reg, &tr->MAC_Ctl);
- reg &= ~MAC_HaltReq;
- tc_writel(reg, &tr->MAC_Ctl);
-
- /*
- * TX4939 PCFG.SPEEDn bit will be changed on
- * NETDEV_CHANGE event.
- */
- /*
- * WORKAROUND: enable LostCrS only if half duplex
- * operation.
- * (TX4939 does not have EnLCarr)
- */
- if (phydev->duplex == DUPLEX_HALF &&
- lp->chiptype != TC35815_TX4939)
- tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr,
- &tr->Tx_Ctl);
-
- lp->speed = phydev->speed;
- lp->duplex = phydev->duplex;
- status_change = 1;
- }
-
- if (phydev->link != lp->link) {
- if (phydev->link) {
- /* delayed promiscuous enabling */
- if (dev->flags & IFF_PROMISC)
- tc35815_set_multicast_list(dev);
- } else {
- lp->speed = 0;
- lp->duplex = -1;
- }
- lp->link = phydev->link;
-
- status_change = 1;
- }
- spin_unlock_irqrestore(&lp->lock, flags);
-
- if (status_change && netif_msg_link(lp)) {
- phy_print_status(phydev);
- pr_debug("%s: MII BMCR %04x BMSR %04x LPA %04x\n",
- dev->name,
- phy_read(phydev, MII_BMCR),
- phy_read(phydev, MII_BMSR),
- phy_read(phydev, MII_LPA));
- }
-}
-
-static int tc_mii_probe(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct phy_device *phydev = NULL;
- int phy_addr;
- u32 dropmask;
-
- /* find the first phy */
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
- if (lp->mii_bus->phy_map[phy_addr]) {
- if (phydev) {
- printk(KERN_ERR "%s: multiple PHYs found\n",
- dev->name);
- return -EINVAL;
- }
- phydev = lp->mii_bus->phy_map[phy_addr];
- break;
- }
- }
-
- if (!phydev) {
- printk(KERN_ERR "%s: no PHY found\n", dev->name);
- return -ENODEV;
- }
-
- /* attach the mac to the phy */
- phydev = phy_connect(dev, dev_name(&phydev->dev),
- &tc_handle_link_change, 0,
- lp->chiptype == TC35815_TX4939 ?
- PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII);
- if (IS_ERR(phydev)) {
- printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
- return PTR_ERR(phydev);
- }
- printk(KERN_INFO "%s: attached PHY driver [%s] "
- "(mii_bus:phy_addr=%s, id=%x)\n",
- dev->name, phydev->drv->name, dev_name(&phydev->dev),
- phydev->phy_id);
-
- /* mask with MAC supported features */
- phydev->supported &= PHY_BASIC_FEATURES;
- dropmask = 0;
- if (options.speed == 10)
- dropmask |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
- else if (options.speed == 100)
- dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
- if (options.duplex == 1)
- dropmask |= SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full;
- else if (options.duplex == 2)
- dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_100baseT_Half;
- phydev->supported &= ~dropmask;
- phydev->advertising = phydev->supported;
-
- lp->link = 0;
- lp->speed = 0;
- lp->duplex = -1;
- lp->phy_dev = phydev;
-
- return 0;
-}
-
-static int tc_mii_init(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int err;
- int i;
-
- lp->mii_bus = mdiobus_alloc();
- if (lp->mii_bus == NULL) {
- err = -ENOMEM;
- goto err_out;
- }
-
- lp->mii_bus->name = "tc35815_mii_bus";
- lp->mii_bus->read = tc_mdio_read;
- lp->mii_bus->write = tc_mdio_write;
- snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%x",
- (lp->pci_dev->bus->number << 8) | lp->pci_dev->devfn);
- lp->mii_bus->priv = dev;
- lp->mii_bus->parent = &lp->pci_dev->dev;
- lp->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
- if (!lp->mii_bus->irq) {
- err = -ENOMEM;
- goto err_out_free_mii_bus;
- }
-
- for (i = 0; i < PHY_MAX_ADDR; i++)
- lp->mii_bus->irq[i] = PHY_POLL;
-
- err = mdiobus_register(lp->mii_bus);
- if (err)
- goto err_out_free_mdio_irq;
- err = tc_mii_probe(dev);
- if (err)
- goto err_out_unregister_bus;
- return 0;
-
-err_out_unregister_bus:
- mdiobus_unregister(lp->mii_bus);
-err_out_free_mdio_irq:
- kfree(lp->mii_bus->irq);
-err_out_free_mii_bus:
- mdiobus_free(lp->mii_bus);
-err_out:
- return err;
-}
-
-#ifdef CONFIG_CPU_TX49XX
-/*
- * Find a platform_device providing a MAC address. The platform code
- * should provide a "tc35815-mac" device with a MAC address in its
- * platform_data.
- */
-static int __devinit tc35815_mac_match(struct device *dev, void *data)
-{
- struct platform_device *plat_dev = to_platform_device(dev);
- struct pci_dev *pci_dev = data;
- unsigned int id = pci_dev->irq;
- return !strcmp(plat_dev->name, "tc35815-mac") && plat_dev->id == id;
-}
-
-static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct device *pd = bus_find_device(&platform_bus_type, NULL,
- lp->pci_dev, tc35815_mac_match);
- if (pd) {
- if (pd->platform_data)
- memcpy(dev->dev_addr, pd->platform_data, ETH_ALEN);
- put_device(pd);
- return is_valid_ether_addr(dev->dev_addr) ? 0 : -ENODEV;
- }
- return -ENODEV;
-}
-#else
-static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev)
-{
- return -ENODEV;
-}
-#endif
-
-static int __devinit tc35815_init_dev_addr(struct net_device *dev)
-{
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- int i;
-
- 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;
- }
- if (!is_valid_ether_addr(dev->dev_addr))
- return tc35815_read_plat_dev_addr(dev);
- return 0;
-}
-
-static const struct net_device_ops tc35815_netdev_ops = {
- .ndo_open = tc35815_open,
- .ndo_stop = tc35815_close,
- .ndo_start_xmit = tc35815_send_packet,
- .ndo_get_stats = tc35815_get_stats,
- .ndo_set_multicast_list = tc35815_set_multicast_list,
- .ndo_tx_timeout = tc35815_tx_timeout,
- .ndo_do_ioctl = tc35815_ioctl,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = tc35815_poll_controller,
-#endif
-};
-
-static int __devinit tc35815_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- void __iomem *ioaddr = NULL;
- struct net_device *dev;
- struct tc35815_local *lp;
- int rc;
-
- static int printed_version;
- if (!printed_version++) {
- printk(version);
- dev_printk(KERN_DEBUG, &pdev->dev,
- "speed:%d duplex:%d\n",
- options.speed, options.duplex);
- }
-
- if (!pdev->irq) {
- dev_warn(&pdev->dev, "no IRQ assigned.\n");
- return -ENODEV;
- }
-
- /* dev zeroed in alloc_etherdev */
- dev = alloc_etherdev(sizeof(*lp));
- if (dev == NULL) {
- dev_err(&pdev->dev, "unable to alloc new ethernet\n");
- return -ENOMEM;
- }
- SET_NETDEV_DEV(dev, &pdev->dev);
- lp = netdev_priv(dev);
- lp->dev = dev;
-
- /* enable device (incl. PCI PM wakeup), and bus-mastering */
- rc = pcim_enable_device(pdev);
- if (rc)
- goto err_out;
- rc = pcim_iomap_regions(pdev, 1 << 1, MODNAME);
- if (rc)
- goto err_out;
- pci_set_master(pdev);
- ioaddr = pcim_iomap_table(pdev)[1];
-
- /* Initialize the device structure. */
- dev->netdev_ops = &tc35815_netdev_ops;
- dev->ethtool_ops = &tc35815_ethtool_ops;
- dev->watchdog_timeo = TC35815_TX_TIMEOUT;
- netif_napi_add(dev, &lp->napi, tc35815_poll, NAPI_WEIGHT);
-
- dev->irq = pdev->irq;
- dev->base_addr = (unsigned long)ioaddr;
-
- INIT_WORK(&lp->restart_work, tc35815_restart_work);
- spin_lock_init(&lp->lock);
- spin_lock_init(&lp->rx_lock);
- lp->pci_dev = pdev;
- lp->chiptype = ent->driver_data;
-
- lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK;
- pci_set_drvdata(pdev, dev);
-
- /* Soft reset the chip. */
- tc35815_chip_reset(dev);
-
- /* Retrieve the ethernet address. */
- if (tc35815_init_dev_addr(dev)) {
- dev_warn(&pdev->dev, "not valid ether addr\n");
- random_ether_addr(dev->dev_addr);
- }
-
- rc = register_netdev(dev);
- if (rc)
- goto err_out;
-
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
- printk(KERN_INFO "%s: %s at 0x%lx, %pM, IRQ %d\n",
- dev->name,
- chip_info[ent->driver_data].name,
- dev->base_addr,
- dev->dev_addr,
- dev->irq);
-
- rc = tc_mii_init(dev);
- if (rc)
- goto err_out_unregister;
-
- return 0;
-
-err_out_unregister:
- unregister_netdev(dev);
-err_out:
- free_netdev(dev);
- return rc;
-}
-
-
-static void __devexit tc35815_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct tc35815_local *lp = netdev_priv(dev);
-
- phy_disconnect(lp->phy_dev);
- mdiobus_unregister(lp->mii_bus);
- kfree(lp->mii_bus->irq);
- mdiobus_free(lp->mii_bus);
- unregister_netdev(dev);
- free_netdev(dev);
- pci_set_drvdata(pdev, NULL);
-}
-
-static int
-tc35815_init_queues(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int i;
- unsigned long fd_addr;
-
- if (!lp->fd_buf) {
- BUG_ON(sizeof(struct FDesc) +
- sizeof(struct BDesc) * RX_BUF_NUM +
- sizeof(struct FDesc) * RX_FD_NUM +
- sizeof(struct TxFD) * TX_FD_NUM >
- PAGE_SIZE * FD_PAGE_NUM);
-
- lp->fd_buf = pci_alloc_consistent(lp->pci_dev,
- PAGE_SIZE * FD_PAGE_NUM,
- &lp->fd_buf_dma);
- if (!lp->fd_buf)
- return -ENOMEM;
- for (i = 0; i < RX_BUF_NUM; i++) {
- lp->rx_skbs[i].skb =
- alloc_rxbuf_skb(dev, lp->pci_dev,
- &lp->rx_skbs[i].skb_dma);
- if (!lp->rx_skbs[i].skb) {
- while (--i >= 0) {
- free_rxbuf_skb(lp->pci_dev,
- lp->rx_skbs[i].skb,
- lp->rx_skbs[i].skb_dma);
- lp->rx_skbs[i].skb = NULL;
- }
- pci_free_consistent(lp->pci_dev,
- PAGE_SIZE * FD_PAGE_NUM,
- lp->fd_buf,
- lp->fd_buf_dma);
- lp->fd_buf = NULL;
- return -ENOMEM;
- }
- }
- printk(KERN_DEBUG "%s: FD buf %p DataBuf",
- dev->name, lp->fd_buf);
- printk("\n");
- } else {
- for (i = 0; i < FD_PAGE_NUM; i++)
- clear_page((void *)((unsigned long)lp->fd_buf +
- i * PAGE_SIZE));
- }
- fd_addr = (unsigned long)lp->fd_buf;
-
- /* 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 - (RX_FD_RESERVE + 1);
-
- /* 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(fd_virt_to_bus(lp, &lp->tfd_base[i+1]));
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
- lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0);
- }
- lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &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(fd_virt_to_bus(lp, lp->fbl_ptr));
- lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_NUM | FD_CownsFD);
- /*
- * move all allocated skbs to head of rx_skbs[] array.
- * fbl_count mighe not be RX_BUF_NUM if alloc_rxbuf_skb() in
- * tc35815_rx() had failed.
- */
- lp->fbl_count = 0;
- for (i = 0; i < RX_BUF_NUM; i++) {
- if (lp->rx_skbs[i].skb) {
- if (i != lp->fbl_count) {
- lp->rx_skbs[lp->fbl_count].skb =
- lp->rx_skbs[i].skb;
- lp->rx_skbs[lp->fbl_count].skb_dma =
- lp->rx_skbs[i].skb_dma;
- }
- lp->fbl_count++;
- }
- }
- for (i = 0; i < RX_BUF_NUM; i++) {
- if (i >= lp->fbl_count) {
- lp->fbl_ptr->bd[i].BuffData = 0;
- lp->fbl_ptr->bd[i].BDCtl = 0;
- continue;
- }
- lp->fbl_ptr->bd[i].BuffData =
- cpu_to_le32(lp->rx_skbs[i].skb_dma);
- /* BDID is index of FrFD.bd[] */
- lp->fbl_ptr->bd[i].BDCtl =
- cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) |
- RX_BUF_SIZE);
- }
-
- printk(KERN_DEBUG "%s: TxFD %p RxFD %p FrFD %p\n",
- dev->name, lp->tfd_base, lp->rfd_base, lp->fbl_ptr);
- return 0;
-}
-
-static void
-tc35815_clear_queues(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int i;
-
- for (i = 0; i < TX_FD_NUM; i++) {
- u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
- struct sk_buff *skb =
- fdsystem != 0xffffffff ?
- lp->tx_skbs[fdsystem].skb : NULL;
-#ifdef DEBUG
- if (lp->tx_skbs[i].skb != skb) {
- printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
- panic_queues(dev);
- }
-#else
- BUG_ON(lp->tx_skbs[i].skb != skb);
-#endif
- if (skb) {
- pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
- lp->tx_skbs[i].skb = NULL;
- lp->tx_skbs[i].skb_dma = 0;
- dev_kfree_skb_any(skb);
- }
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
- }
-
- tc35815_init_queues(dev);
-}
-
-static void
-tc35815_free_queues(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int i;
-
- if (lp->tfd_base) {
- for (i = 0; i < TX_FD_NUM; i++) {
- u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
- struct sk_buff *skb =
- fdsystem != 0xffffffff ?
- lp->tx_skbs[fdsystem].skb : NULL;
-#ifdef DEBUG
- if (lp->tx_skbs[i].skb != skb) {
- printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
- panic_queues(dev);
- }
-#else
- BUG_ON(lp->tx_skbs[i].skb != skb);
-#endif
- if (skb) {
- dev_kfree_skb(skb);
- pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
- lp->tx_skbs[i].skb = NULL;
- lp->tx_skbs[i].skb_dma = 0;
- }
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
- }
- }
-
- lp->rfd_base = NULL;
- lp->rfd_limit = NULL;
- lp->rfd_cur = NULL;
- lp->fbl_ptr = NULL;
-
- for (i = 0; i < RX_BUF_NUM; i++) {
- if (lp->rx_skbs[i].skb) {
- free_rxbuf_skb(lp->pci_dev, lp->rx_skbs[i].skb,
- lp->rx_skbs[i].skb_dma);
- lp->rx_skbs[i].skb = NULL;
- }
- }
- if (lp->fd_buf) {
- pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM,
- lp->fd_buf, lp->fd_buf_dma);
- 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;
-}
-
-#ifdef DEBUG
-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_NUM; 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 = netdev_priv(dev);
- int i;
-
- printk("TxFD base %p, start %u, end %u\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);
-}
-#endif
-
-static void print_eth(const u8 *add)
-{
- printk(KERN_DEBUG "print_eth(%p)\n", add);
- printk(KERN_DEBUG " %pM => %pM : %02x%02x\n",
- add + 6, add, add[12], add[13]);
-}
-
-static int tc35815_tx_full(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- return (lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end;
-}
-
-static void tc35815_restart(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- if (lp->phy_dev) {
- int timeout;
-
- phy_write(lp->phy_dev, MII_BMCR, BMCR_RESET);
- timeout = 100;
- while (--timeout) {
- if (!(phy_read(lp->phy_dev, MII_BMCR) & BMCR_RESET))
- break;
- udelay(1);
- }
- if (!timeout)
- printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name);
- }
-
- spin_lock_bh(&lp->rx_lock);
- spin_lock_irq(&lp->lock);
- tc35815_chip_reset(dev);
- tc35815_clear_queues(dev);
- tc35815_chip_init(dev);
- /* Reconfigure CAM again since tc35815_chip_init() initialize it. */
- tc35815_set_multicast_list(dev);
- spin_unlock_irq(&lp->lock);
- spin_unlock_bh(&lp->rx_lock);
-
- netif_wake_queue(dev);
-}
-
-static void tc35815_restart_work(struct work_struct *work)
-{
- struct tc35815_local *lp =
- container_of(work, struct tc35815_local, restart_work);
- struct net_device *dev = lp->dev;
-
- tc35815_restart(dev);
-}
-
-static void tc35815_schedule_restart(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- unsigned long flags;
-
- /* disable interrupts */
- spin_lock_irqsave(&lp->lock, flags);
- tc_writel(0, &tr->Int_En);
- tc_writel(tc_readl(&tr->DMA_Ctl) | DMA_IntMask, &tr->DMA_Ctl);
- schedule_work(&lp->restart_work);
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-static void tc35815_tx_timeout(struct net_device *dev)
-{
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
-
- printk(KERN_WARNING "%s: transmit timed out, status %#x\n",
- dev->name, tc_readl(&tr->Tx_Stat));
-
- /* Try to restart the adaptor. */
- tc35815_schedule_restart(dev);
- dev->stats.tx_errors++;
-}
-
-/*
- * Open/initialize the controller. 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 = netdev_priv(dev);
-
- /*
- * 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 (request_irq(dev->irq, tc35815_interrupt, IRQF_SHARED,
- dev->name, dev))
- return -EAGAIN;
-
- tc35815_chip_reset(dev);
-
- if (tc35815_init_queues(dev) != 0) {
- free_irq(dev->irq, dev);
- return -EAGAIN;
- }
-
- napi_enable(&lp->napi);
-
- /* Reset the hardware here. Don't forget to set the station address. */
- spin_lock_irq(&lp->lock);
- tc35815_chip_init(dev);
- spin_unlock_irq(&lp->lock);
-
- netif_carrier_off(dev);
- /* schedule a link state check */
- phy_start(lp->phy_dev);
-
- /* We are now ready to accept transmit requeusts from
- * the queueing layer of the networking.
- */
- netif_start_queue(dev);
-
- return 0;
-}
-
-/* This will only be invoked if your driver is _not_ in XOFF state.
- * What this means is that you need not check it, and that this
- * invariant will hold if you make sure that the netif_*_queue()
- * calls are done at the proper times.
- */
-static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct TxFD *txfd;
- unsigned long flags;
-
- /* If some error occurs while trying to transmit this
- * packet, you should return '1' from this function.
- * In such a case you _may not_ do anything to the
- * SKB, it is still owned by the network queueing
- * layer when an error is returned. This means you
- * may not modify any SKB fields, you may not free
- * the SKB, etc.
- */
-
- /* This is the most common case for modern hardware.
- * The spinlock protects this code from the TX complete
- * hardware interrupt handler. Queue flow control is
- * thus managed under this lock as well.
- */
- spin_lock_irqsave(&lp->lock, flags);
-
- /* failsafe... (handle txdone now if half of FDs are used) */
- if ((lp->tfd_start + TX_FD_NUM - lp->tfd_end) % TX_FD_NUM >
- TX_FD_NUM / 2)
- tc35815_txdone(dev);
-
- if (netif_msg_pktdata(lp))
- print_eth(skb->data);
-#ifdef DEBUG
- if (lp->tx_skbs[lp->tfd_start].skb) {
- printk("%s: tx_skbs conflict.\n", dev->name);
- panic_queues(dev);
- }
-#else
- BUG_ON(lp->tx_skbs[lp->tfd_start].skb);
-#endif
- lp->tx_skbs[lp->tfd_start].skb = skb;
- lp->tx_skbs[lp->tfd_start].skb_dma = pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
-
- /*add to ring */
- txfd = &lp->tfd_base[lp->tfd_start];
- txfd->bd.BuffData = cpu_to_le32(lp->tx_skbs[lp->tfd_start].skb_dma);
- txfd->bd.BDCtl = cpu_to_le32(skb->len);
- txfd->fd.FDSystem = cpu_to_le32(lp->tfd_start);
- txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT));
-
- if (lp->tfd_start == lp->tfd_end) {
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- /* Start DMA Transmitter. */
- txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL);
- txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
- if (netif_msg_tx_queued(lp)) {
- printk("%s: starting TxFD.\n", dev->name);
- dump_txfd(txfd);
- }
- tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
- } else {
- txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL);
- if (netif_msg_tx_queued(lp)) {
- printk("%s: queueing TxFD.\n", dev->name);
- dump_txfd(txfd);
- }
- }
- lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM;
-
- /* If we just used up the very last entry in the
- * TX ring on this device, tell the queueing
- * layer to send no more.
- */
- if (tc35815_tx_full(dev)) {
- if (netif_msg_tx_queued(lp))
- printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name);
- netif_stop_queue(dev);
- }
-
- /* When the TX completion hw interrupt arrives, this
- * is when the transmit statistics are updated.
- */
-
- spin_unlock_irqrestore(&lp->lock, flags);
- return NETDEV_TX_OK;
-}
-
-#define FATAL_ERROR_INT \
- (Int_IntPCI | Int_DmParErr | Int_IntNRAbt)
-static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 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 ...\n", dev->name);
- /* Try to restart the adaptor. */
- tc35815_schedule_restart(dev);
-}
-
-static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- int ret = -1;
-
- /* Fatal errors... */
- if (status & FATAL_ERROR_INT) {
- tc35815_fatal_error_interrupt(dev, status);
- return 0;
- }
- /* recoverable errors */
- if (status & Int_IntFDAEx) {
- if (netif_msg_rx_err(lp))
- dev_warn(&dev->dev,
- "Free Descriptor Area Exhausted (%#x).\n",
- status);
- dev->stats.rx_dropped++;
- ret = 0;
- }
- if (status & Int_IntBLEx) {
- if (netif_msg_rx_err(lp))
- dev_warn(&dev->dev,
- "Buffer List Exhausted (%#x).\n",
- status);
- dev->stats.rx_dropped++;
- ret = 0;
- }
- if (status & Int_IntExBD) {
- if (netif_msg_rx_err(lp))
- dev_warn(&dev->dev,
- "Excessive Buffer Descriptiors (%#x).\n",
- status);
- dev->stats.rx_length_errors++;
- ret = 0;
- }
-
- /* normal notification */
- if (status & Int_IntMacRx) {
- /* Got a packet(s). */
- ret = tc35815_rx(dev, limit);
- lp->lstats.rx_ints++;
- }
- if (status & Int_IntMacTx) {
- /* Transmit complete. */
- lp->lstats.tx_ints++;
- spin_lock_irq(&lp->lock);
- tc35815_txdone(dev);
- spin_unlock_irq(&lp->lock);
- if (ret < 0)
- ret = 0;
- }
- return ret;
-}
-
-/*
- * The typical workload of the driver:
- * Handle the network interface interrupts.
- */
-static irqreturn_t tc35815_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct tc35815_local *lp = netdev_priv(dev);
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- u32 dmactl = tc_readl(&tr->DMA_Ctl);
-
- if (!(dmactl & DMA_IntMask)) {
- /* disable interrupts */
- tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl);
- if (napi_schedule_prep(&lp->napi))
- __napi_schedule(&lp->napi);
- else {
- printk(KERN_ERR "%s: interrupt taken in poll\n",
- dev->name);
- BUG();
- }
- (void)tc_readl(&tr->Int_Src); /* flush */
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void tc35815_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- tc35815_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-/* We have a good packet(s), get it/them out of the buffers. */
-static int
-tc35815_rx(struct net_device *dev, int limit)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- unsigned int fdctl;
- int i;
- int received = 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;
- int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT;
-#ifdef DEBUG
- struct RxFD *next_rfd;
-#endif
-#if (RX_CTL_CMD & Rx_StripCRC) == 0
- pkt_len -= ETH_FCS_LEN;
-#endif
-
- if (netif_msg_rx_status(lp))
- dump_rxfd(lp->rfd_cur);
- if (status & Rx_Good) {
- struct sk_buff *skb;
- unsigned char *data;
- int cur_bd;
-
- if (--limit < 0)
- break;
- BUG_ON(bd_count > 1);
- cur_bd = (le32_to_cpu(lp->rfd_cur->bd[0].BDCtl)
- & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT;
-#ifdef DEBUG
- if (cur_bd >= RX_BUF_NUM) {
- printk("%s: invalid BDID.\n", dev->name);
- panic_queues(dev);
- }
- BUG_ON(lp->rx_skbs[cur_bd].skb_dma !=
- (le32_to_cpu(lp->rfd_cur->bd[0].BuffData) & ~3));
- if (!lp->rx_skbs[cur_bd].skb) {
- printk("%s: NULL skb.\n", dev->name);
- panic_queues(dev);
- }
-#else
- BUG_ON(cur_bd >= RX_BUF_NUM);
-#endif
- skb = lp->rx_skbs[cur_bd].skb;
- prefetch(skb->data);
- lp->rx_skbs[cur_bd].skb = NULL;
- pci_unmap_single(lp->pci_dev,
- lp->rx_skbs[cur_bd].skb_dma,
- RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- if (!HAVE_DMA_RXALIGN(lp) && NET_IP_ALIGN)
- memmove(skb->data, skb->data - NET_IP_ALIGN,
- pkt_len);
- data = skb_put(skb, pkt_len);
- if (netif_msg_pktdata(lp))
- print_eth(data);
- skb->protocol = eth_type_trans(skb, dev);
- netif_receive_skb(skb);
- received++;
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- } else {
- dev->stats.rx_errors++;
- if (netif_msg_rx_err(lp))
- dev_info(&dev->dev, "Rx error (status %x)\n",
- status & Rx_Stat_Mask);
- /* 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)
- dev->stats.rx_length_errors++;
- if (status & Rx_Over)
- dev->stats.rx_fifo_errors++;
- if (status & Rx_CRCErr)
- dev->stats.rx_crc_errors++;
- if (status & Rx_Align)
- dev->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;
-#ifdef DEBUG
- if (id >= RX_BUF_NUM) {
- printk("%s: invalid BDID.\n", dev->name);
- panic_queues(dev);
- }
-#else
- BUG_ON(id >= RX_BUF_NUM);
-#endif
- /* free old buffers */
- lp->fbl_count--;
- while (lp->fbl_count < RX_BUF_NUM)
- {
- unsigned char curid =
- (id + 1 + lp->fbl_count) % RX_BUF_NUM;
- struct BDesc *bd = &lp->fbl_ptr->bd[curid];
-#ifdef DEBUG
- bdctl = le32_to_cpu(bd->BDCtl);
- if (bdctl & BD_CownsBD) {
- printk("%s: Freeing invalid BD.\n",
- dev->name);
- panic_queues(dev);
- }
-#endif
- /* pass BD to controller */
- if (!lp->rx_skbs[curid].skb) {
- lp->rx_skbs[curid].skb =
- alloc_rxbuf_skb(dev,
- lp->pci_dev,
- &lp->rx_skbs[curid].skb_dma);
- if (!lp->rx_skbs[curid].skb)
- break; /* try on next reception */
- bd->BuffData = cpu_to_le32(lp->rx_skbs[curid].skb_dma);
- }
- /* Note: BDLength was modified by chip. */
- bd->BDCtl = cpu_to_le32(BD_CownsBD |
- (curid << BD_RxBDID_SHIFT) |
- RX_BUF_SIZE);
- lp->fbl_count++;
- }
- }
-
- /* put RxFD back to controller */
-#ifdef DEBUG
- next_rfd = fd_bus_to_virt(lp,
- le32_to_cpu(lp->rfd_cur->fd.FDNext));
- if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) {
- printk("%s: RxFD FDNext invalid.\n", dev->name);
- panic_queues(dev);
- }
-#endif
- for (i = 0; i < (bd_count + 1) / 2 + 1; i++) {
- /* pass FD to controller */
-#ifdef DEBUG
- lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead);
-#else
- lp->rfd_cur->fd.FDNext = cpu_to_le32(FD_Next_EOL);
-#endif
- lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD);
- lp->rfd_cur++;
- }
- if (lp->rfd_cur > lp->rfd_limit)
- lp->rfd_cur = lp->rfd_base;
-#ifdef DEBUG
- if (lp->rfd_cur != next_rfd)
- printk("rfd_cur = %p, next_rfd %p\n",
- lp->rfd_cur, next_rfd);
-#endif
- }
-
- return received;
-}
-
-static int tc35815_poll(struct napi_struct *napi, int budget)
-{
- struct tc35815_local *lp = container_of(napi, struct tc35815_local, napi);
- struct net_device *dev = lp->dev;
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- int received = 0, handled;
- u32 status;
-
- spin_lock(&lp->rx_lock);
- status = tc_readl(&tr->Int_Src);
- do {
- /* BLEx, FDAEx will be cleared later */
- tc_writel(status & ~(Int_BLEx | Int_FDAEx),
- &tr->Int_Src); /* write to clear */
-
- handled = tc35815_do_interrupt(dev, status, budget - received);
- if (status & (Int_BLEx | Int_FDAEx))
- tc_writel(status & (Int_BLEx | Int_FDAEx),
- &tr->Int_Src);
- if (handled >= 0) {
- received += handled;
- if (received >= budget)
- break;
- }
- status = tc_readl(&tr->Int_Src);
- } while (status);
- spin_unlock(&lp->rx_lock);
-
- if (received < budget) {
- napi_complete(napi);
- /* enable interrupts */
- tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl);
- }
- return received;
-}
-
-#define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_NCarr|Tx_LateColl|Tx_TxPar|Tx_SQErr)
-
-static void
-tc35815_check_tx_stat(struct net_device *dev, int status)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- const char *msg = NULL;
-
- /* count collisions */
- if (status & Tx_ExColl)
- dev->stats.collisions += 16;
- if (status & Tx_TxColl_MASK)
- dev->stats.collisions += status & Tx_TxColl_MASK;
-
- /* TX4939 does not have NCarr */
- if (lp->chiptype == TC35815_TX4939)
- status &= ~Tx_NCarr;
- /* WORKAROUND: ignore LostCrS in full duplex operation */
- if (!lp->link || lp->duplex == DUPLEX_FULL)
- status &= ~Tx_NCarr;
-
- if (!(status & TX_STA_ERR)) {
- /* no error. */
- dev->stats.tx_packets++;
- return;
- }
-
- dev->stats.tx_errors++;
- if (status & Tx_ExColl) {
- dev->stats.tx_aborted_errors++;
- msg = "Excessive Collision.";
- }
- if (status & Tx_Under) {
- dev->stats.tx_fifo_errors++;
- msg = "Tx FIFO Underrun.";
- if (lp->lstats.tx_underrun < TX_THRESHOLD_KEEP_LIMIT) {
- lp->lstats.tx_underrun++;
- if (lp->lstats.tx_underrun >= TX_THRESHOLD_KEEP_LIMIT) {
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- tc_writel(TX_THRESHOLD_MAX, &tr->TxThrsh);
- msg = "Tx FIFO Underrun.Change Tx threshold to max.";
- }
- }
- }
- if (status & Tx_Defer) {
- dev->stats.tx_fifo_errors++;
- msg = "Excessive Deferral.";
- }
- if (status & Tx_NCarr) {
- dev->stats.tx_carrier_errors++;
- msg = "Lost Carrier Sense.";
- }
- if (status & Tx_LateColl) {
- dev->stats.tx_aborted_errors++;
- msg = "Late Collision.";
- }
- if (status & Tx_TxPar) {
- dev->stats.tx_fifo_errors++;
- msg = "Transmit Parity Error.";
- }
- if (status & Tx_SQErr) {
- dev->stats.tx_heartbeat_errors++;
- msg = "Signal Quality Error.";
- }
- if (msg && netif_msg_tx_err(lp))
- printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status);
-}
-
-/* This handles TX complete events posted by the device
- * via interrupts.
- */
-static void
-tc35815_txdone(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct TxFD *txfd;
- unsigned int fdctl;
-
- 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);
- u32 fdsystem = le32_to_cpu(txfd->fd.FDSystem);
-
- if (netif_msg_tx_done(lp)) {
- printk("%s: complete TxFD.\n", dev->name);
- dump_txfd(txfd);
- }
- tc35815_check_tx_stat(dev, status);
-
- skb = fdsystem != 0xffffffff ?
- lp->tx_skbs[fdsystem].skb : NULL;
-#ifdef DEBUG
- if (lp->tx_skbs[lp->tfd_end].skb != skb) {
- printk("%s: tx_skbs mismatch.\n", dev->name);
- panic_queues(dev);
- }
-#else
- BUG_ON(lp->tx_skbs[lp->tfd_end].skb != skb);
-#endif
- if (skb) {
- dev->stats.tx_bytes += skb->len;
- pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE);
- lp->tx_skbs[lp->tfd_end].skb = NULL;
- lp->tx_skbs[lp->tfd_end].skb_dma = 0;
- dev_kfree_skb_any(skb);
- }
- txfd->fd.FDSystem = cpu_to_le32(0xffffffff);
-
- lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM;
- txfd = &lp->tfd_base[lp->tfd_end];
-#ifdef DEBUG
- if ((fdnext & ~FD_Next_EOL) != fd_virt_to_bus(lp, txfd)) {
- printk("%s: TxFD FDNext invalid.\n", dev->name);
- panic_queues(dev);
- }
-#endif
- if (fdnext & FD_Next_EOL) {
- /* DMA Transmitter has been stopping... */
- if (lp->tfd_end != lp->tfd_start) {
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- 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;
-
-#ifdef DEBUG
- if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) {
- printk("%s: TxFD FDCtl invalid.\n", dev->name);
- panic_queues(dev);
- }
-#endif
- /* 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);
- txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
- if (netif_msg_tx_queued(lp)) {
- printk("%s: start TxFD on queue.\n",
- dev->name);
- dump_txfd(txfd);
- }
- tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
- }
- break;
- }
- }
-
- /* If we had stopped the queue due to a "tx full"
- * condition, and space has now been made available,
- * wake up the queue.
- */
- if (netif_queue_stopped(dev) && !tc35815_tx_full(dev))
- netif_wake_queue(dev);
-}
-
-/* The inverse routine to tc35815_open(). */
-static int
-tc35815_close(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- netif_stop_queue(dev);
- napi_disable(&lp->napi);
- if (lp->phy_dev)
- phy_stop(lp->phy_dev);
- cancel_work_sync(&lp->restart_work);
-
- /* 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_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- if (netif_running(dev))
- /* Update the statistics from the device registers. */
- dev->stats.rx_missed_errors += tc_readl(&tr->Miss_Cnt);
-
- return &dev->stats;
-}
-
-static void tc35815_set_cam_entry(struct net_device *dev, int index, unsigned char *addr)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- int cam_index = index * 6;
- u32 cam_data;
- u32 saved_addr;
-
- saved_addr = tc_readl(&tr->CAM_Adr);
-
- if (netif_msg_hw(lp))
- printk(KERN_DEBUG "%s: CAM %d: %pM\n",
- dev->name, index, addr);
- 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);
- }
-
- 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 __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
-
- if (dev->flags & IFF_PROMISC) {
- /* With some (all?) 100MHalf HUB, controller will hang
- * if we enabled promiscuous mode before linkup... */
- struct tc35815_local *lp = netdev_priv(dev);
-
- if (!lp->link)
- return;
- /* Enable promiscuous mode */
- tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl);
- } else if ((dev->flags & IFF_ALLMULTI) ||
- netdev_mc_count(dev) > 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 (!netdev_mc_empty(dev)) {
- struct netdev_hw_addr *ha;
- 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 */
- i = 0;
- netdev_for_each_mc_addr(ha, dev) {
- /* entry 0,1 is reserved. */
- tc35815_set_cam_entry(dev, i + 2, ha->addr);
- ena_bits |= CAM_Ena_Bit(i + 2);
- i++;
- }
- 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 void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- strcpy(info->driver, MODNAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, pci_name(lp->pci_dev));
-}
-
-static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- if (!lp->phy_dev)
- return -ENODEV;
- return phy_ethtool_gset(lp->phy_dev, cmd);
-}
-
-static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- if (!lp->phy_dev)
- return -ENODEV;
- return phy_ethtool_sset(lp->phy_dev, cmd);
-}
-
-static u32 tc35815_get_msglevel(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- return lp->msg_enable;
-}
-
-static void tc35815_set_msglevel(struct net_device *dev, u32 datum)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- lp->msg_enable = datum;
-}
-
-static int tc35815_get_sset_count(struct net_device *dev, int sset)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- switch (sset) {
- case ETH_SS_STATS:
- return sizeof(lp->lstats) / sizeof(int);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void tc35815_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- data[0] = lp->lstats.max_tx_qlen;
- data[1] = lp->lstats.tx_ints;
- data[2] = lp->lstats.rx_ints;
- data[3] = lp->lstats.tx_underrun;
-}
-
-static struct {
- const char str[ETH_GSTRING_LEN];
-} ethtool_stats_keys[] = {
- { "max_tx_qlen" },
- { "tx_ints" },
- { "rx_ints" },
- { "tx_underrun" },
-};
-
-static void tc35815_get_strings(struct net_device *dev, u32 stringset, u8 *data)
-{
- memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
-}
-
-static const struct ethtool_ops tc35815_ethtool_ops = {
- .get_drvinfo = tc35815_get_drvinfo,
- .get_settings = tc35815_get_settings,
- .set_settings = tc35815_set_settings,
- .get_link = ethtool_op_get_link,
- .get_msglevel = tc35815_get_msglevel,
- .set_msglevel = tc35815_set_msglevel,
- .get_strings = tc35815_get_strings,
- .get_sset_count = tc35815_get_sset_count,
- .get_ethtool_stats = tc35815_get_ethtool_stats,
-};
-
-static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct tc35815_local *lp = netdev_priv(dev);
-
- if (!netif_running(dev))
- return -EINVAL;
- if (!lp->phy_dev)
- return -ENODEV;
- return phy_mii_ioctl(lp->phy_dev, rq, cmd);
-}
-
-static void tc35815_chip_reset(struct net_device *dev)
-{
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- int i;
- /* reset the controller */
- tc_writel(MAC_Reset, &tr->MAC_Ctl);
- udelay(4); /* 3200ns */
- i = 0;
- while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) {
- if (i++ > 100) {
- printk(KERN_ERR "%s: MAC reset failed.\n", dev->name);
- break;
- }
- mdelay(1);
- }
- 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 */
-
- /* initialize internal SRAM */
- tc_writel(DMA_TestMode, &tr->DMA_Ctl);
- for (i = 0; i < 0x1000; i += 4) {
- tc_writel(i, &tr->CAM_Adr);
- tc_writel(0, &tr->CAM_Data);
- }
- tc_writel(0, &tr->DMA_Ctl);
-}
-
-static void tc35815_chip_init(struct net_device *dev)
-{
- struct tc35815_local *lp = netdev_priv(dev);
- struct tc35815_regs __iomem *tr =
- (struct tc35815_regs __iomem *)dev->base_addr;
- unsigned long txctl = TX_CTL_CMD;
-
- /* load station address to CAM */
- tc35815_set_cam_entry(dev, 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);
-
- /* Use DMA_RxAlign_2 to make IP header 4-byte aligned. */
- if (HAVE_DMA_RXALIGN(lp))
- tc_writel(DMA_BURST_SIZE | DMA_RxAlign_2, &tr->DMA_Ctl);
- else
- tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl);
- 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(fd_virt_to_bus(lp, 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 the MAC Transmitter and the DMA Receive circuits.
- * Then enable the DMA Transmitter and the MAC Receive circuits.
- */
- tc_writel(fd_virt_to_bus(lp, lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */
- tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */
-
- /* start MAC transmitter */
- /* TX4939 does not have EnLCarr */
- if (lp->chiptype == TC35815_TX4939)
- txctl &= ~Tx_EnLCarr;
- /* WORKAROUND: ignore LostCrS in full duplex operation */
- if (!lp->phy_dev || !lp->link || lp->duplex == DUPLEX_FULL)
- txctl &= ~Tx_EnLCarr;
- tc_writel(txctl, &tr->Tx_Ctl);
-}
-
-#ifdef CONFIG_PM
-static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct tc35815_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- pci_save_state(pdev);
- if (!netif_running(dev))
- return 0;
- netif_device_detach(dev);
- if (lp->phy_dev)
- phy_stop(lp->phy_dev);
- spin_lock_irqsave(&lp->lock, flags);
- tc35815_chip_reset(dev);
- spin_unlock_irqrestore(&lp->lock, flags);
- pci_set_power_state(pdev, PCI_D3hot);
- return 0;
-}
-
-static int tc35815_resume(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct tc35815_local *lp = netdev_priv(dev);
-
- pci_restore_state(pdev);
- if (!netif_running(dev))
- return 0;
- pci_set_power_state(pdev, PCI_D0);
- tc35815_restart(dev);
- netif_carrier_off(dev);
- if (lp->phy_dev)
- phy_start(lp->phy_dev);
- netif_device_attach(dev);
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static struct pci_driver tc35815_pci_driver = {
- .name = MODNAME,
- .id_table = tc35815_pci_tbl,
- .probe = tc35815_init_one,
- .remove = __devexit_p(tc35815_remove_one),
-#ifdef CONFIG_PM
- .suspend = tc35815_suspend,
- .resume = tc35815_resume,
-#endif
-};
-
-module_param_named(speed, options.speed, int, 0);
-MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps");
-module_param_named(duplex, options.duplex, int, 0);
-MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full");
-
-static int __init tc35815_init_module(void)
-{
- return pci_register_driver(&tc35815_pci_driver);
-}
-
-static void __exit tc35815_cleanup_module(void)
-{
- pci_unregister_driver(&tc35815_pci_driver);
-}
-
-module_init(tc35815_init_module);
-module_exit(tc35815_cleanup_module);
-
-MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver");
-MODULE_LICENSE("GPL");