diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-20 20:43:09 -0700 |
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committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-12 00:21:56 -0700 |
commit | f2148a472883ddf77626fff52b070655a8a0a788 (patch) | |
tree | 4224e4b1f7b7bbec8a5c5ebbd2ed1e2a69a89b9a /drivers/net/via-rhine.c | |
parent | 527a626601de6ff89859de90883cc546892bf3ca (diff) |
via-*: Move the VIA drivers
Move the VIA drivers into drivers/net/ethernet/via/ and make the
necessary Kconfig and Makefile changes.
CC: Roger Luethi <rl@hellgate.ch>
CC: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/via-rhine.c')
-rw-r--r-- | drivers/net/via-rhine.c | 2340 |
1 files changed, 0 insertions, 2340 deletions
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c deleted file mode 100644 index 7f23ab913fd..00000000000 --- a/drivers/net/via-rhine.c +++ /dev/null @@ -1,2340 +0,0 @@ -/* via-rhine.c: A Linux Ethernet device driver for VIA Rhine family chips. */ -/* - Written 1998-2001 by Donald Becker. - - Current Maintainer: Roger Luethi <rl@hellgate.ch> - - This software may be used and distributed according to the terms of - the GNU General Public License (GPL), incorporated herein by reference. - Drivers based on or derived from this code fall under the GPL and must - retain the authorship, copyright and license notice. This file is not - a complete program and may only be used when the entire operating - system is licensed under the GPL. - - This driver is designed for the VIA VT86C100A Rhine-I. - It also works with the Rhine-II (6102) and Rhine-III (6105/6105L/6105LOM - and management NIC 6105M). - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - - This driver contains some changes from the original Donald Becker - version. He may or may not be interested in bug reports on this - code. You can find his versions at: - http://www.scyld.com/network/via-rhine.html - [link no longer provides useful info -jgarzik] - -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#define DRV_NAME "via-rhine" -#define DRV_VERSION "1.5.0" -#define DRV_RELDATE "2010-10-09" - - -/* A few user-configurable values. - These may be modified when a driver module is loaded. */ - -#define DEBUG -static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ -static int max_interrupt_work = 20; - -/* Set the copy breakpoint for the copy-only-tiny-frames scheme. - Setting to > 1518 effectively disables this feature. */ -#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \ - defined(CONFIG_SPARC) || defined(__ia64__) || \ - defined(__sh__) || defined(__mips__) -static int rx_copybreak = 1518; -#else -static int rx_copybreak; -#endif - -/* Work-around for broken BIOSes: they are unable to get the chip back out of - power state D3 so PXE booting fails. bootparam(7): via-rhine.avoid_D3=1 */ -static int avoid_D3; - -/* - * In case you are looking for 'options[]' or 'full_duplex[]', they - * are gone. Use ethtool(8) instead. - */ - -/* Maximum number of multicast addresses to filter (vs. rx-all-multicast). - The Rhine has a 64 element 8390-like hash table. */ -static const int multicast_filter_limit = 32; - - -/* Operational parameters that are set at compile time. */ - -/* Keep the ring sizes a power of two for compile efficiency. - The compiler will convert <unsigned>'%'<2^N> into a bit mask. - Making the Tx ring too large decreases the effectiveness of channel - bonding and packet priority. - There are no ill effects from too-large receive rings. */ -#define TX_RING_SIZE 16 -#define TX_QUEUE_LEN 10 /* Limit ring entries actually used. */ -#define RX_RING_SIZE 64 - -/* Operational parameters that usually are not changed. */ - -/* Time in jiffies before concluding the transmitter is hung. */ -#define TX_TIMEOUT (2*HZ) - -#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/mii.h> -#include <linux/ethtool.h> -#include <linux/crc32.h> -#include <linux/if_vlan.h> -#include <linux/bitops.h> -#include <linux/workqueue.h> -#include <asm/processor.h> /* Processor type for cache alignment. */ -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <linux/dmi.h> - -/* These identify the driver base version and may not be removed. */ -static const char version[] __devinitconst = - "v1.10-LK" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker"; - -/* This driver was written to use PCI memory space. Some early versions - of the Rhine may only work correctly with I/O space accesses. */ -#ifdef CONFIG_VIA_RHINE_MMIO -#define USE_MMIO -#else -#endif - -MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); -MODULE_DESCRIPTION("VIA Rhine PCI Fast Ethernet driver"); -MODULE_LICENSE("GPL"); - -module_param(max_interrupt_work, int, 0); -module_param(debug, int, 0); -module_param(rx_copybreak, int, 0); -module_param(avoid_D3, bool, 0); -MODULE_PARM_DESC(max_interrupt_work, "VIA Rhine maximum events handled per interrupt"); -MODULE_PARM_DESC(debug, "VIA Rhine debug level (0-7)"); -MODULE_PARM_DESC(rx_copybreak, "VIA Rhine copy breakpoint for copy-only-tiny-frames"); -MODULE_PARM_DESC(avoid_D3, "Avoid power state D3 (work-around for broken BIOSes)"); - -#define MCAM_SIZE 32 -#define VCAM_SIZE 32 - -/* - Theory of Operation - -I. Board Compatibility - -This driver is designed for the VIA 86c100A Rhine-II PCI Fast Ethernet -controller. - -II. Board-specific settings - -Boards with this chip are functional only in a bus-master PCI slot. - -Many operational settings are loaded from the EEPROM to the Config word at -offset 0x78. For most of these settings, this driver assumes that they are -correct. -If this driver is compiled to use PCI memory space operations the EEPROM -must be configured to enable memory ops. - -III. Driver operation - -IIIa. Ring buffers - -This driver uses two statically allocated fixed-size descriptor lists -formed into rings by a branch from the final descriptor to the beginning of -the list. The ring sizes are set at compile time by RX/TX_RING_SIZE. - -IIIb/c. Transmit/Receive Structure - -This driver attempts to use a zero-copy receive and transmit scheme. - -Alas, all data buffers are required to start on a 32 bit boundary, so -the driver must often copy transmit packets into bounce buffers. - -The driver allocates full frame size skbuffs for the Rx ring buffers at -open() time and passes the skb->data field to the chip as receive data -buffers. When an incoming frame is less than RX_COPYBREAK bytes long, -a fresh skbuff is allocated and the frame is copied to the new skbuff. -When the incoming frame is larger, the skbuff is passed directly up the -protocol stack. Buffers consumed this way are replaced by newly allocated -skbuffs in the last phase of rhine_rx(). - -The RX_COPYBREAK value is chosen to trade-off the memory wasted by -using a full-sized skbuff for small frames vs. the copying costs of larger -frames. New boards are typically used in generously configured machines -and the underfilled buffers have negligible impact compared to the benefit of -a single allocation size, so the default value of zero results in never -copying packets. When copying is done, the cost is usually mitigated by using -a combined copy/checksum routine. Copying also preloads the cache, which is -most useful with small frames. - -Since the VIA chips are only able to transfer data to buffers on 32 bit -boundaries, the IP header at offset 14 in an ethernet frame isn't -longword aligned for further processing. Copying these unaligned buffers -has the beneficial effect of 16-byte aligning the IP header. - -IIId. Synchronization - -The driver runs as two independent, single-threaded flows of control. One -is the send-packet routine, which enforces single-threaded use by the -netdev_priv(dev)->lock spinlock. The other thread is the interrupt handler, -which is single threaded by the hardware and interrupt handling software. - -The send packet thread has partial control over the Tx ring. It locks the -netdev_priv(dev)->lock whenever it's queuing a Tx packet. If the next slot in -the ring is not available it stops the transmit queue by -calling netif_stop_queue. - -The interrupt handler has exclusive control over the Rx ring and records stats -from the Tx ring. After reaping the stats, it marks the Tx queue entry as -empty by incrementing the dirty_tx mark. If at least half of the entries in -the Rx ring are available the transmit queue is woken up if it was stopped. - -IV. Notes - -IVb. References - -Preliminary VT86C100A manual from http://www.via.com.tw/ -http://www.scyld.com/expert/100mbps.html -http://www.scyld.com/expert/NWay.html -ftp://ftp.via.com.tw/public/lan/Products/NIC/VT86C100A/Datasheet/VT86C100A03.pdf -ftp://ftp.via.com.tw/public/lan/Products/NIC/VT6102/Datasheet/VT6102_021.PDF - - -IVc. Errata - -The VT86C100A manual is not reliable information. -The 3043 chip does not handle unaligned transmit or receive buffers, resulting -in significant performance degradation for bounce buffer copies on transmit -and unaligned IP headers on receive. -The chip does not pad to minimum transmit length. - -*/ - - -/* This table drives the PCI probe routines. It's mostly boilerplate in all - of the drivers, and will likely be provided by some future kernel. - Note the matching code -- the first table entry matchs all 56** cards but - second only the 1234 card. -*/ - -enum rhine_revs { - VT86C100A = 0x00, - VTunknown0 = 0x20, - VT6102 = 0x40, - VT8231 = 0x50, /* Integrated MAC */ - VT8233 = 0x60, /* Integrated MAC */ - VT8235 = 0x74, /* Integrated MAC */ - VT8237 = 0x78, /* Integrated MAC */ - VTunknown1 = 0x7C, - VT6105 = 0x80, - VT6105_B0 = 0x83, - VT6105L = 0x8A, - VT6107 = 0x8C, - VTunknown2 = 0x8E, - VT6105M = 0x90, /* Management adapter */ -}; - -enum rhine_quirks { - rqWOL = 0x0001, /* Wake-On-LAN support */ - rqForceReset = 0x0002, - rq6patterns = 0x0040, /* 6 instead of 4 patterns for WOL */ - rqStatusWBRace = 0x0080, /* Tx Status Writeback Error possible */ - rqRhineI = 0x0100, /* See comment below */ -}; -/* - * rqRhineI: VT86C100A (aka Rhine-I) uses different bits to enable - * MMIO as well as for the collision counter and the Tx FIFO underflow - * indicator. In addition, Tx and Rx buffers need to 4 byte aligned. - */ - -/* Beware of PCI posted writes */ -#define IOSYNC do { ioread8(ioaddr + StationAddr); } while (0) - -static DEFINE_PCI_DEVICE_TABLE(rhine_pci_tbl) = { - { 0x1106, 0x3043, PCI_ANY_ID, PCI_ANY_ID, }, /* VT86C100A */ - { 0x1106, 0x3065, PCI_ANY_ID, PCI_ANY_ID, }, /* VT6102 */ - { 0x1106, 0x3106, PCI_ANY_ID, PCI_ANY_ID, }, /* 6105{,L,LOM} */ - { 0x1106, 0x3053, PCI_ANY_ID, PCI_ANY_ID, }, /* VT6105M */ - { } /* terminate list */ -}; -MODULE_DEVICE_TABLE(pci, rhine_pci_tbl); - - -/* Offsets to the device registers. */ -enum register_offsets { - StationAddr=0x00, RxConfig=0x06, TxConfig=0x07, ChipCmd=0x08, - ChipCmd1=0x09, TQWake=0x0A, - IntrStatus=0x0C, IntrEnable=0x0E, - MulticastFilter0=0x10, MulticastFilter1=0x14, - RxRingPtr=0x18, TxRingPtr=0x1C, GFIFOTest=0x54, - MIIPhyAddr=0x6C, MIIStatus=0x6D, PCIBusConfig=0x6E, PCIBusConfig1=0x6F, - MIICmd=0x70, MIIRegAddr=0x71, MIIData=0x72, MACRegEEcsr=0x74, - ConfigA=0x78, ConfigB=0x79, ConfigC=0x7A, ConfigD=0x7B, - RxMissed=0x7C, RxCRCErrs=0x7E, MiscCmd=0x81, - StickyHW=0x83, IntrStatus2=0x84, - CamMask=0x88, CamCon=0x92, CamAddr=0x93, - WOLcrSet=0xA0, PwcfgSet=0xA1, WOLcgSet=0xA3, WOLcrClr=0xA4, - WOLcrClr1=0xA6, WOLcgClr=0xA7, - PwrcsrSet=0xA8, PwrcsrSet1=0xA9, PwrcsrClr=0xAC, PwrcsrClr1=0xAD, -}; - -/* Bits in ConfigD */ -enum backoff_bits { - BackOptional=0x01, BackModify=0x02, - BackCaptureEffect=0x04, BackRandom=0x08 -}; - -/* Bits in the TxConfig (TCR) register */ -enum tcr_bits { - TCR_PQEN=0x01, - TCR_LB0=0x02, /* loopback[0] */ - TCR_LB1=0x04, /* loopback[1] */ - TCR_OFSET=0x08, - TCR_RTGOPT=0x10, - TCR_RTFT0=0x20, - TCR_RTFT1=0x40, - TCR_RTSF=0x80, -}; - -/* Bits in the CamCon (CAMC) register */ -enum camcon_bits { - CAMC_CAMEN=0x01, - CAMC_VCAMSL=0x02, - CAMC_CAMWR=0x04, - CAMC_CAMRD=0x08, -}; - -/* Bits in the PCIBusConfig1 (BCR1) register */ -enum bcr1_bits { - BCR1_POT0=0x01, - BCR1_POT1=0x02, - BCR1_POT2=0x04, - BCR1_CTFT0=0x08, - BCR1_CTFT1=0x10, - BCR1_CTSF=0x20, - BCR1_TXQNOBK=0x40, /* for VT6105 */ - BCR1_VIDFR=0x80, /* for VT6105 */ - BCR1_MED0=0x40, /* for VT6102 */ - BCR1_MED1=0x80, /* for VT6102 */ -}; - -#ifdef USE_MMIO -/* Registers we check that mmio and reg are the same. */ -static const int mmio_verify_registers[] = { - RxConfig, TxConfig, IntrEnable, ConfigA, ConfigB, ConfigC, ConfigD, - 0 -}; -#endif - -/* Bits in the interrupt status/mask registers. */ -enum intr_status_bits { - IntrRxDone=0x0001, IntrRxErr=0x0004, IntrRxEmpty=0x0020, - IntrTxDone=0x0002, IntrTxError=0x0008, IntrTxUnderrun=0x0210, - IntrPCIErr=0x0040, - IntrStatsMax=0x0080, IntrRxEarly=0x0100, - IntrRxOverflow=0x0400, IntrRxDropped=0x0800, IntrRxNoBuf=0x1000, - IntrTxAborted=0x2000, IntrLinkChange=0x4000, - IntrRxWakeUp=0x8000, - IntrNormalSummary=0x0003, IntrAbnormalSummary=0xC260, - IntrTxDescRace=0x080000, /* mapped from IntrStatus2 */ - IntrTxErrSummary=0x082218, -}; - -/* Bits in WOLcrSet/WOLcrClr and PwrcsrSet/PwrcsrClr */ -enum wol_bits { - WOLucast = 0x10, - WOLmagic = 0x20, - WOLbmcast = 0x30, - WOLlnkon = 0x40, - WOLlnkoff = 0x80, -}; - -/* The Rx and Tx buffer descriptors. */ -struct rx_desc { - __le32 rx_status; - __le32 desc_length; /* Chain flag, Buffer/frame length */ - __le32 addr; - __le32 next_desc; -}; -struct tx_desc { - __le32 tx_status; - __le32 desc_length; /* Chain flag, Tx Config, Frame length */ - __le32 addr; - __le32 next_desc; -}; - -/* Initial value for tx_desc.desc_length, Buffer size goes to bits 0-10 */ -#define TXDESC 0x00e08000 - -enum rx_status_bits { - RxOK=0x8000, RxWholePkt=0x0300, RxErr=0x008F -}; - -/* Bits in *_desc.*_status */ -enum desc_status_bits { - DescOwn=0x80000000 -}; - -/* Bits in *_desc.*_length */ -enum desc_length_bits { - DescTag=0x00010000 -}; - -/* Bits in ChipCmd. */ -enum chip_cmd_bits { - CmdInit=0x01, CmdStart=0x02, CmdStop=0x04, CmdRxOn=0x08, - CmdTxOn=0x10, Cmd1TxDemand=0x20, CmdRxDemand=0x40, - Cmd1EarlyRx=0x01, Cmd1EarlyTx=0x02, Cmd1FDuplex=0x04, - Cmd1NoTxPoll=0x08, Cmd1Reset=0x80, -}; - -struct rhine_private { - /* Bit mask for configured VLAN ids */ - unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; - - /* Descriptor rings */ - struct rx_desc *rx_ring; - struct tx_desc *tx_ring; - dma_addr_t rx_ring_dma; - dma_addr_t tx_ring_dma; - - /* The addresses of receive-in-place skbuffs. */ - struct sk_buff *rx_skbuff[RX_RING_SIZE]; - dma_addr_t rx_skbuff_dma[RX_RING_SIZE]; - - /* The saved address of a sent-in-place packet/buffer, for later free(). */ - struct sk_buff *tx_skbuff[TX_RING_SIZE]; - dma_addr_t tx_skbuff_dma[TX_RING_SIZE]; - - /* Tx bounce buffers (Rhine-I only) */ - unsigned char *tx_buf[TX_RING_SIZE]; - unsigned char *tx_bufs; - dma_addr_t tx_bufs_dma; - - struct pci_dev *pdev; - long pioaddr; - struct net_device *dev; - struct napi_struct napi; - spinlock_t lock; - struct work_struct reset_task; - - /* Frequently used values: keep some adjacent for cache effect. */ - u32 quirks; - struct rx_desc *rx_head_desc; - unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */ - unsigned int cur_tx, dirty_tx; - unsigned int rx_buf_sz; /* Based on MTU+slack. */ - u8 wolopts; - - u8 tx_thresh, rx_thresh; - - struct mii_if_info mii_if; - void __iomem *base; -}; - -#define BYTE_REG_BITS_ON(x, p) do { iowrite8((ioread8((p))|(x)), (p)); } while (0) -#define WORD_REG_BITS_ON(x, p) do { iowrite16((ioread16((p))|(x)), (p)); } while (0) -#define DWORD_REG_BITS_ON(x, p) do { iowrite32((ioread32((p))|(x)), (p)); } while (0) - -#define BYTE_REG_BITS_IS_ON(x, p) (ioread8((p)) & (x)) -#define WORD_REG_BITS_IS_ON(x, p) (ioread16((p)) & (x)) -#define DWORD_REG_BITS_IS_ON(x, p) (ioread32((p)) & (x)) - -#define BYTE_REG_BITS_OFF(x, p) do { iowrite8(ioread8((p)) & (~(x)), (p)); } while (0) -#define WORD_REG_BITS_OFF(x, p) do { iowrite16(ioread16((p)) & (~(x)), (p)); } while (0) -#define DWORD_REG_BITS_OFF(x, p) do { iowrite32(ioread32((p)) & (~(x)), (p)); } while (0) - -#define BYTE_REG_BITS_SET(x, m, p) do { iowrite8((ioread8((p)) & (~(m)))|(x), (p)); } while (0) -#define WORD_REG_BITS_SET(x, m, p) do { iowrite16((ioread16((p)) & (~(m)))|(x), (p)); } while (0) -#define DWORD_REG_BITS_SET(x, m, p) do { iowrite32((ioread32((p)) & (~(m)))|(x), (p)); } while (0) - - -static int mdio_read(struct net_device *dev, int phy_id, int location); -static void mdio_write(struct net_device *dev, int phy_id, int location, int value); -static int rhine_open(struct net_device *dev); -static void rhine_reset_task(struct work_struct *work); -static void rhine_tx_timeout(struct net_device *dev); -static netdev_tx_t rhine_start_tx(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t rhine_interrupt(int irq, void *dev_instance); -static void rhine_tx(struct net_device *dev); -static int rhine_rx(struct net_device *dev, int limit); -static void rhine_error(struct net_device *dev, int intr_status); -static void rhine_set_rx_mode(struct net_device *dev); -static struct net_device_stats *rhine_get_stats(struct net_device *dev); -static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -static const struct ethtool_ops netdev_ethtool_ops; -static int rhine_close(struct net_device *dev); -static void rhine_shutdown (struct pci_dev *pdev); -static void rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid); -static void rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid); -static void rhine_set_cam(void __iomem *ioaddr, int idx, u8 *addr); -static void rhine_set_vlan_cam(void __iomem *ioaddr, int idx, u8 *addr); -static void rhine_set_cam_mask(void __iomem *ioaddr, u32 mask); -static void rhine_set_vlan_cam_mask(void __iomem *ioaddr, u32 mask); -static void rhine_init_cam_filter(struct net_device *dev); -static void rhine_update_vcam(struct net_device *dev); - -#define RHINE_WAIT_FOR(condition) \ -do { \ - int i = 1024; \ - while (!(condition) && --i) \ - ; \ - if (debug > 1 && i < 512) \ - pr_info("%4d cycles used @ %s:%d\n", \ - 1024 - i, __func__, __LINE__); \ -} while (0) - -static inline u32 get_intr_status(struct net_device *dev) -{ - struct rhine_private *rp = netdev_priv(dev); - void __iomem *ioaddr = rp->base; - u32 intr_status; - - intr_status = ioread16(ioaddr + IntrStatus); - /* On Rhine-II, Bit 3 indicates Tx descriptor write-back race. */ - if (rp->quirks & rqStatusWBRace) - intr_status |= ioread8(ioaddr + IntrStatus2) << 16; - return intr_status; -} - -/* - * Get power related registers into sane state. - * Notify user about past WOL event. - */ -static void rhine_power_init(struct net_device *dev) -{ - struct rhine_private *rp = netdev_priv(dev); - void __iomem *ioaddr = rp->base; - u16 wolstat; - - if (rp->quirks & rqWOL) { - /* Make sure chip is in power state D0 */ - iowrite8(ioread8(ioaddr + StickyHW) & 0xFC, ioaddr + StickyHW); - - /* Disable "force PME-enable" */ - iowrite8(0x80, ioaddr + WOLcgClr); - - /* Clear power-event config bits (WOL) */ - iowrite8(0xFF, ioaddr + WOLcrClr); - /* More recent cards can manage two additional patterns */ - if (rp->quirks & rq6patterns) - iowrite8(0x03, ioaddr + WOLcrClr1); - - /* Save power-event status bits */ - wolstat = ioread8(ioaddr + PwrcsrSet); - if (rp->quirks & rq6patterns) - wolstat |= (ioread8(ioaddr + PwrcsrSet1) & 0x03) << 8; - - /* Clear power-event status bits */ - iowrite8(0xFF, ioaddr + PwrcsrClr); - if (rp->quirks & rq6patterns) - iowrite8(0x03, ioaddr + PwrcsrClr1); - - if (wolstat) { - char *reason; - switch (wolstat) { - case WOLmagic: - reason = "Magic packet"; - break; - case WOLlnkon: - reason = "Link went up"; - break; - case WOLlnkoff: - reason = "Link went down"; - break; - case WOLucast: - reason = "Unicast packet"; - break; - case WOLbmcast: - reason = "Multicast/broadcast packet"; - break; - default: - reason = "Unknown"; - } - netdev_info(dev, "Woke system up. Reason: %s\n", - reason); - } - } -} - -static void rhine_chip_reset(struct net_device *dev) -{ - struct rhine_private *rp = netdev_priv(dev); - void __iomem *ioaddr = rp->base; - - iowrite8(Cmd1Reset, ioaddr + ChipCmd1); - IOSYNC; - - if (ioread8(ioaddr + ChipCmd1) & Cmd1Reset) { - netdev_info(dev, "Reset not complete yet. Trying harder.\n"); - - /* Force reset */ - if (rp->quirks & rqForceReset) - iowrite8(0x40, ioaddr + MiscCmd); - - /* Reset can take somewhat longer (rare) */ - RHINE_WAIT_FOR(!(ioread8(ioaddr + ChipCmd1) & Cmd1Reset)); - } - - if (debug > 1) - netdev_info(dev, "Reset %s\n", - (ioread8(ioaddr + ChipCmd1) & Cmd1Reset) ? - "failed" : "succeeded"); -} - -#ifdef USE_MMIO -static void enable_mmio(long pioaddr, u32 quirks) -{ - int n; - if (quirks & rqRhineI) { - /* More recent docs say that this bit is reserved ... */ - n = inb(pioaddr + ConfigA) | 0x20; - outb(n, pioaddr + ConfigA); - } else { - n = inb(pioaddr + ConfigD) | 0x80; - outb(n, pioaddr + ConfigD); - } -} -#endif - -/* - * Loads bytes 0x00-0x05, 0x6E-0x6F, 0x78-0x7B from EEPROM - * (plus 0x6C for Rhine-I/II) - */ -static void __devinit rhine_reload_eeprom(long pioaddr, struct net_device *dev) -{ - struct rhine_private *rp = netdev_priv(dev); - void __iomem *ioaddr = rp->base; - - outb(0x20, pioaddr + MACRegEEcsr); - RHINE_WAIT_FOR(!(inb(pioaddr + MACRegEEcsr) & 0x20)); - -#ifdef USE_MMIO - /* - * Reloading from EEPROM overwrites ConfigA-D, so we must re-enable - * MMIO. If reloading EEPROM was done first this could be avoided, but - * it is not known if that still works with the "win98-reboot" problem. - */ - enable_mmio(pioaddr, rp->quirks); -#endif - - /* Turn off EEPROM-controlled wake-up (magic packet) */ - if (rp->quirks & rqWOL) - iowrite8(ioread8(ioaddr + ConfigA) & 0xFC, ioaddr + ConfigA); - -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void rhine_poll(struct net_device *dev) -{ - disable_irq(dev->irq); - rhine_interrupt(dev->irq, (void *)dev); - enable_irq(dev->irq); -} -#endif - -static int rhine_napipoll(struct napi_struct *napi, int budget) -{ - struct rhine_private *rp = container_of(napi, struct rhine_private, napi); - struct net_device *dev = rp->dev; - void __iomem *ioaddr = rp->base; - int work_done; - - work_done = rhine_rx(dev, budget); - - if (work_done < budget) { - napi_complete(napi); - - iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow | - IntrRxDropped | IntrRxNoBuf | IntrTxAborted | - IntrTxDone | IntrTxError | IntrTxUnderrun | - IntrPCIErr | IntrStatsMax | IntrLinkChange, - ioaddr + IntrEnable); - } - return work_done; -} - -static void __devinit rhine_hw_init(struct net_device *dev, long pioaddr) -{ - struct rhine_private *rp = netdev_priv(dev); - - /* Reset the chip to erase previous misconfiguration. */ - rhine_chip_reset(dev); - - /* Rhine-I needs extra time to recuperate before EEPROM reload */ - if (rp->quirks & rqRhineI) - msleep(5); - - /* Reload EEPROM controlled bytes cleared by soft reset */ - rhine_reload_eeprom(pioaddr, dev); -} - -static const struct net_device_ops rhine_netdev_ops = { - .ndo_open = rhine_open, - .ndo_stop = rhine_close, - .ndo_start_xmit = rhine_start_tx, - .ndo_get_stats = rhine_get_stats, - .ndo_set_multicast_list = rhine_set_rx_mode, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_do_ioctl = netdev_ioctl, - .ndo_tx_timeout = rhine_tx_timeout, - .ndo_vlan_rx_add_vid = rhine_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = rhine_vlan_rx_kill_vid, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = rhine_poll, -#endif -}; - -static int __devinit rhine_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *dev; - struct rhine_private *rp; - int i, rc; - u32 quirks; - long pioaddr; - long memaddr; - void __iomem *ioaddr; - int io_size, phy_id; - const char *name; -#ifdef USE_MMIO - int bar = 1; -#else - int bar = 0; -#endif - -/* when built into the kernel, we only print version if device is found */ -#ifndef MODULE - pr_info_once("%s\n", version); -#endif - - io_size = 256; - phy_id = 0; - quirks = 0; - name = "Rhine"; - if (pdev->revision < VTunknown0) { - quirks = rqRhineI; - io_size = 128; - } - else if (pdev->revision >= VT6102) { - quirks = rqWOL | rqForceReset; - if (pdev->revision < VT6105) { - name = "Rhine II"; - quirks |= rqStatusWBRace; /* Rhine-II exclusive */ - } - else { - phy_id = 1; /* Integrated PHY, phy_id fixed to 1 */ - if (pdev->revision >= VT6105_B0) - quirks |= rq6patterns; - if (pdev->revision < VT6105M) - name = "Rhine III"; - else - name = "Rhine III (Management Adapter)"; - } - } - - rc = pci_enable_device(pdev); - if (rc) - goto err_out; - - /* this should always be supported */ - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (rc) { - dev_err(&pdev->dev, - "32-bit PCI DMA addresses not supported by the card!?\n"); - goto err_out; - } - - /* sanity check */ - if ((pci_resource_len(pdev, 0) < io_size) || - (pci_resource_len(pdev, 1) < io_size)) { - rc = -EIO; - dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n"); - goto err_out; - } - - pioaddr = pci_resource_start(pdev, 0); - memaddr = pci_resource_start(pdev, 1); - - pci_set_master(pdev); - - dev = alloc_etherdev(sizeof(struct rhine_private)); - if (!dev) { - rc = -ENOMEM; - dev_err(&pdev->dev, "alloc_etherdev failed\n"); - goto err_out; - } - SET_NETDEV_DEV(dev, &pdev->dev); - - rp = netdev_priv(dev); - rp->dev = dev; - rp->quirks = quirks; - rp->pioaddr = pioaddr; - rp->pdev = pdev; - - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) - goto err_out_free_netdev; - - ioaddr = pci_iomap(pdev, bar, io_size); - if (!ioaddr) { - rc = -EIO; - dev_err(&pdev->dev, - "ioremap failed for device %s, region 0x%X @ 0x%lX\n", - pci_name(pdev), io_size, memaddr); - goto err_out_free_res; - } - -#ifdef USE_MMIO - enable_mmio(pioaddr, quirks); - - /* Check that selected MMIO registers match the PIO ones */ - i = 0; - while (mmio_verify_registers[i]) { - int reg = mmio_verify_registers[i++]; - unsigned char a = inb(pioaddr+reg); - unsigned char b = readb(ioaddr+reg); - if (a != b) { - rc = -EIO; - dev_err(&pdev->dev, - "MMIO do not match PIO [%02x] (%02x != %02x)\n", - reg, a, b); - goto err_out_unmap; - } - } -#endif /* USE_MMIO */ - - dev->base_addr = (unsigned long)ioaddr; - rp->base = ioaddr; - - /* Get chip registers into a sane state */ - rhine_power_init(dev); - rhine_hw_init(dev, pioaddr); - - for (i = 0; i < 6; i++) - dev->dev_addr[i] = ioread8(ioaddr + StationAddr + i); - - if (!is_valid_ether_addr(dev->dev_addr)) { - /* Report it and use a random ethernet address instead */ - netdev_err(dev, "Invalid MAC address: %pM\n", dev->dev_addr); - random_ether_addr(dev->dev_addr); - netdev_info(dev, "Using random MAC address: %pM\n", - dev->dev_addr); - } - memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - - /* For Rhine-I/II, phy_id is loaded from EEPROM */ - if (!phy_id) - phy_id = ioread8(ioaddr + 0x6C); - - dev->irq = pdev->irq; - - spin_lock_init(&rp->lock); - INIT_WORK(&rp->reset_task, rhine_reset_task); - - rp->mii_if.dev = dev; - rp->mii_if.mdio_read = mdio_read; - rp->mii_if.mdio_write = mdio_write; - rp->mii_if.phy_id_mask = 0x1f; - rp->mii_if.reg_num_mask = 0x1f; - - /* The chip-specific entries in the device structure. */ - dev->netdev_ops = &rhine_netdev_ops; - dev->ethtool_ops = &netdev_ethtool_ops, - dev->watchdog_timeo = TX_TIMEOUT; - - netif_napi_add(dev, &rp->napi, rhine_napipoll, 64); - - if (rp->quirks & rqRhineI) - dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM; - - if (pdev->revision >= VT6105M) - dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | - NETIF_F_HW_VLAN_FILTER; - - /* dev->name not defined before register_netdev()! */ - rc = register_netdev(dev); - if (rc) - goto err_out_unmap; - - netdev_info(dev, "VIA %s at 0x%lx, %pM, IRQ %d\n", - name, -#ifdef USE_MMIO - memaddr, -#else - (long)ioaddr, -#endif - dev->dev_addr, pdev->irq); - - pci_set_drvdata(pdev, dev); - - { - u16 mii_cmd; - int mii_status = mdio_read(dev, phy_id, 1); - mii_cmd = mdio_read(dev, phy_id, MII_BMCR) & ~BMCR_ISOLATE; - mdio_write(dev, phy_id, MII_BMCR, mii_cmd); - if (mii_status != 0xffff && mii_status != 0x0000) { - rp->mii_if.advertising = mdio_read(dev, phy_id, 4); - netdev_info(dev, - "MII PHY found at address %d, status 0x%04x advertising %04x Link %04x\n", - phy_id, - mii_status, rp->mii_if.advertising, - mdio_read(dev, phy_id, 5)); - - /* set IFF_RUNNING */ - if (mii_status & BMSR_LSTATUS) - netif_carrier_on(dev); - else - netif_carrier_off(dev); - - } - } - rp->mii_if.phy_id = phy_id; - if (debug > 1 && avoid_D3) - netdev_info(dev, "No D3 power state at shutdown\n"); - - return 0; - -err_out_unmap: - pci_iounmap(pdev, ioaddr); -err_out_free_res: - pci_release_regions(pdev); -err_out_free_netdev: - free_netdev(dev); -err_out: - return rc; -} - -static int alloc_ring(struct net_device* dev) -{ - struct rhine_private *rp = netdev_priv(dev); - void *ring; - dma_addr_t ring_dma; - - ring = pci_alloc_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - &ring_dma); - if (!ring) { - netdev_err(dev, "Could not allocate DMA memory\n"); - return -ENOMEM; - } - if (rp->quirks & rqRhineI) { - rp->tx_bufs = pci_alloc_consistent(rp->pdev, - PKT_BUF_SZ * TX_RING_SIZE, - &rp->tx_bufs_dma); - if (rp->tx_bufs == NULL) { - pci_free_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - ring, ring_dma); - return -ENOMEM; - } - } - - rp->rx_ring = ring; - rp->tx_ring = ring + RX_RING_SIZE * sizeof(struct rx_desc); - rp->rx_ring_dma = ring_dma; - rp->tx_ring_dma = ring_dma + RX_RING_SIZE * sizeof(struct rx_desc); - - return 0; -} - -static void free_ring(struct net_device* dev) -{ - struct rhine_private *rp = netdev_priv(dev); - - pci_free_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - rp->rx_ring, rp->rx_ring_dma); - rp->tx_ring = NULL; - - if (rp->tx_bufs) - pci_free_consistent(rp->pdev, PKT_BUF_SZ * TX_RING_SIZE, - rp->tx_bufs, rp->tx_bufs_dma); - - rp->tx_bufs = NULL; - -} - -static void alloc_rbufs(struct net_device *dev) -{ - struct rhine_private *rp = netdev_priv(dev); - dma_addr_t next; - int i; - - rp->dirty_rx = rp->cur_rx = 0; - - rp->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); - rp->rx_head_desc = &rp->rx_ring[0]; - next = rp->rx_ring_dma; - - /* Init the ring entries */ - for (i = 0; i < RX_RING_SIZE; i++) { - rp->rx_ring[i].rx_status = 0; - rp->rx_ring[i].desc_length = cpu_to_le32(rp->rx_buf_sz); - next += sizeof(struct rx_desc); - rp->rx_ring[i].next_desc = cpu_to_le32(next); - rp->rx_skbuff[i] = NULL; - } - /* Mark the last entry as wrapping the ring. */ - rp->rx_ring[i-1].next_desc = cpu_to_le32(rp->rx_ring_dma); - - /* Fill in the Rx buffers. Handle allocation failure gracefully. */ - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = netdev_alloc_skb(dev, rp->rx_buf_sz); - rp->rx_skbuff[i] = skb; - if (skb == NULL) - break; - skb->dev = dev; /* Mark as being used by this device. */ - - rp->rx_skbuff_dma[i] = - pci_map_single(rp->pdev, skb->data, rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - - rp->rx_ring[i].addr = cpu_to_le32(rp->rx_skbuff_dma[i]); - rp->rx_ring[i].rx_status = cpu_to_le32(DescOwn); - } - rp->dirty_rx = (unsigned int)(i - RX_RING_SIZE); -} - -static void free_rbufs(struct net_device* dev) -{ - struct rhine_private *rp = netdev_priv(dev); - int i; - - /* Free all the skbuffs in the Rx queue. */ - for (i = 0; i < RX_RING_SIZE; i++) { - rp->rx_ring[i].rx_status = 0; - rp->rx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */ - if (rp->rx_skbuff[i]) { - pci_unmap_single(rp->pdev, - rp->rx_skbuff_dma[i], - rp->rx_buf_sz, PCI_DMA_FROMDEVICE); - dev_kfree_skb(rp->rx_skbuff[i]); - } - rp->rx_skbuff[i] = NULL; - } -} - -static void alloc_tbufs(struct net_device* dev) -{ - struct rhine_private *rp = netdev_priv(dev); - dma_addr_t next; - int i; - - rp->dirty_tx = rp->cur_tx = 0; - next = rp->tx_ring_dma; - for (i = 0; i < TX_RING_SIZE; i++) { - rp->tx_skbuff[i] = NULL; - rp->tx_ring[i].tx_status = 0; - rp->tx_ring[i].desc_length = cpu_to_le32(TXDESC); - next += sizeof(struct tx_desc); - rp->tx_ring[i].next_desc = cpu_to_le32(next); - if (rp->quirks & rqRhineI) - rp->tx_buf[i] = &rp->tx_bufs[i * PKT_BUF_SZ]; - } - rp->tx_ring[i-1].next_desc = cpu_to_le32(rp->tx_ring_dma); - -} - -static void free_tbufs(struct net_device* dev) -{ - struct rhine_private *rp = netdev_priv(dev); - int i; - - for (i = 0; i < TX_RING_SIZE; i++) { - rp->tx_ring[i].tx_status = 0; - rp->tx_ring[i].desc_length = cpu_to_le32(TXDESC); - rp->tx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */ - if (rp->tx_skbuff[i]) { - if (rp->tx_skbuff_dma[i]) { - pci_unmap_single(rp->pdev, - rp->tx_skbuff_dma[i], - rp->tx_skbuff[i]->len, - PCI_DMA_TODEVICE); - } - dev_kfree_skb(rp->tx_skbuff[i]); - } - rp->tx_skbuff[i] = NULL; - rp->tx_buf[i] = NULL; - } -} - -static void rhine_check_media(struct net_device *dev, unsigned int init_media) -{ - struct rhine_ |