+++ /dev/null
-/* 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_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- mii_check_media(&rp->mii_if, debug, init_media);
-
- if (rp->mii_if.full_duplex)
- iowrite8(ioread8(ioaddr + ChipCmd1) | Cmd1FDuplex,
- ioaddr + ChipCmd1);
- else
- iowrite8(ioread8(ioaddr + ChipCmd1) & ~Cmd1FDuplex,
- ioaddr + ChipCmd1);
- if (debug > 1)
- netdev_info(dev, "force_media %d, carrier %d\n",
- rp->mii_if.force_media, netif_carrier_ok(dev));
-}
-
-/* Called after status of force_media possibly changed */
-static void rhine_set_carrier(struct mii_if_info *mii)
-{
- if (mii->force_media) {
- /* autoneg is off: Link is always assumed to be up */
- if (!netif_carrier_ok(mii->dev))
- netif_carrier_on(mii->dev);
- }
- else /* Let MMI library update carrier status */
- rhine_check_media(mii->dev, 0);
- if (debug > 1)
- netdev_info(mii->dev, "force_media %d, carrier %d\n",
- mii->force_media, netif_carrier_ok(mii->dev));
-}
-
-/**
- * rhine_set_cam - set CAM multicast filters
- * @ioaddr: register block of this Rhine
- * @idx: multicast CAM index [0..MCAM_SIZE-1]
- * @addr: multicast address (6 bytes)
- *
- * Load addresses into multicast filters.
- */
-static void rhine_set_cam(void __iomem *ioaddr, int idx, u8 *addr)
-{
- int i;
-
- iowrite8(CAMC_CAMEN, ioaddr + CamCon);
- wmb();
-
- /* Paranoid -- idx out of range should never happen */
- idx &= (MCAM_SIZE - 1);
-
- iowrite8((u8) idx, ioaddr + CamAddr);
-
- for (i = 0; i < 6; i++, addr++)
- iowrite8(*addr, ioaddr + MulticastFilter0 + i);
- udelay(10);
- wmb();
-
- iowrite8(CAMC_CAMWR | CAMC_CAMEN, ioaddr + CamCon);
- udelay(10);
-
- iowrite8(0, ioaddr + CamCon);
-}
-
-/**
- * rhine_set_vlan_cam - set CAM VLAN filters
- * @ioaddr: register block of this Rhine
- * @idx: VLAN CAM index [0..VCAM_SIZE-1]
- * @addr: VLAN ID (2 bytes)
- *
- * Load addresses into VLAN filters.
- */
-static void rhine_set_vlan_cam(void __iomem *ioaddr, int idx, u8 *addr)
-{
- iowrite8(CAMC_CAMEN | CAMC_VCAMSL, ioaddr + CamCon);
- wmb();
-
- /* Paranoid -- idx out of range should never happen */
- idx &= (VCAM_SIZE - 1);
-
- iowrite8((u8) idx, ioaddr + CamAddr);
-
- iowrite16(*((u16 *) addr), ioaddr + MulticastFilter0 + 6);
- udelay(10);
- wmb();
-
- iowrite8(CAMC_CAMWR | CAMC_CAMEN, ioaddr + CamCon);
- udelay(10);
-
- iowrite8(0, ioaddr + CamCon);
-}
-
-/**
- * rhine_set_cam_mask - set multicast CAM mask
- * @ioaddr: register block of this Rhine
- * @mask: multicast CAM mask
- *
- * Mask sets multicast filters active/inactive.
- */
-static void rhine_set_cam_mask(void __iomem *ioaddr, u32 mask)
-{
- iowrite8(CAMC_CAMEN, ioaddr + CamCon);
- wmb();
-
- /* write mask */
- iowrite32(mask, ioaddr + CamMask);
-
- /* disable CAMEN */
- iowrite8(0, ioaddr + CamCon);
-}
-
-/**
- * rhine_set_vlan_cam_mask - set VLAN CAM mask
- * @ioaddr: register block of this Rhine
- * @mask: VLAN CAM mask
- *
- * Mask sets VLAN filters active/inactive.
- */
-static void rhine_set_vlan_cam_mask(void __iomem *ioaddr, u32 mask)
-{
- iowrite8(CAMC_CAMEN | CAMC_VCAMSL, ioaddr + CamCon);
- wmb();
-
- /* write mask */
- iowrite32(mask, ioaddr + CamMask);
-
- /* disable CAMEN */
- iowrite8(0, ioaddr + CamCon);
-}
-
-/**
- * rhine_init_cam_filter - initialize CAM filters
- * @dev: network device
- *
- * Initialize (disable) hardware VLAN and multicast support on this
- * Rhine.
- */
-static void rhine_init_cam_filter(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- /* Disable all CAMs */
- rhine_set_vlan_cam_mask(ioaddr, 0);
- rhine_set_cam_mask(ioaddr, 0);
-
- /* disable hardware VLAN support */
- BYTE_REG_BITS_ON(TCR_PQEN, ioaddr + TxConfig);
- BYTE_REG_BITS_OFF(BCR1_VIDFR, ioaddr + PCIBusConfig1);
-}
-
-/**
- * rhine_update_vcam - update VLAN CAM filters
- * @rp: rhine_private data of this Rhine
- *
- * Update VLAN CAM filters to match configuration change.
- */
-static void rhine_update_vcam(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- u16 vid;
- u32 vCAMmask = 0; /* 32 vCAMs (6105M and better) */
- unsigned int i = 0;
-
- for_each_set_bit(vid, rp->active_vlans, VLAN_N_VID) {
- rhine_set_vlan_cam(ioaddr, i, (u8 *)&vid);
- vCAMmask |= 1 << i;
- if (++i >= VCAM_SIZE)
- break;
- }
- rhine_set_vlan_cam_mask(ioaddr, vCAMmask);
-}
-
-static void rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- spin_lock_irq(&rp->lock);
- set_bit(vid, rp->active_vlans);
- rhine_update_vcam(dev);
- spin_unlock_irq(&rp->lock);
-}
-
-static void rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- spin_lock_irq(&rp->lock);
- clear_bit(vid, rp->active_vlans);
- rhine_update_vcam(dev);
- spin_unlock_irq(&rp->lock);
-}
-
-static void init_registers(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- int i;
-
- for (i = 0; i < 6; i++)
- iowrite8(dev->dev_addr[i], ioaddr + StationAddr + i);
-
- /* Initialize other registers. */
- iowrite16(0x0006, ioaddr + PCIBusConfig); /* Tune configuration??? */
- /* Configure initial FIFO thresholds. */
- iowrite8(0x20, ioaddr + TxConfig);
- rp->tx_thresh = 0x20;
- rp->rx_thresh = 0x60; /* Written in rhine_set_rx_mode(). */
-
- iowrite32(rp->rx_ring_dma, ioaddr + RxRingPtr);
- iowrite32(rp->tx_ring_dma, ioaddr + TxRingPtr);
-
- rhine_set_rx_mode(dev);
-
- if (rp->pdev->revision >= VT6105M)
- rhine_init_cam_filter(dev);
-
- napi_enable(&rp->napi);
-
- /* Enable interrupts by setting the interrupt mask. */
- iowrite16(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow |
- IntrRxDropped | IntrRxNoBuf | IntrTxAborted |
- IntrTxDone | IntrTxError | IntrTxUnderrun |
- IntrPCIErr | IntrStatsMax | IntrLinkChange,
- ioaddr + IntrEnable);
-
- iowrite16(CmdStart | CmdTxOn | CmdRxOn | (Cmd1NoTxPoll << 8),
- ioaddr + ChipCmd);
- rhine_check_media(dev, 1);
-}
-
-/* Enable MII link status auto-polling (required for IntrLinkChange) */
-static void rhine_enable_linkmon(void __iomem *ioaddr)
-{
- iowrite8(0, ioaddr + MIICmd);
- iowrite8(MII_BMSR, ioaddr + MIIRegAddr);
- iowrite8(0x80, ioaddr + MIICmd);
-
- RHINE_WAIT_FOR((ioread8(ioaddr + MIIRegAddr) & 0x20));
-
- iowrite8(MII_BMSR | 0x40, ioaddr + MIIRegAddr);
-}
-
-/* Disable MII link status auto-polling (required for MDIO access) */
-static void rhine_disable_linkmon(void __iomem *ioaddr, u32 quirks)
-{
- iowrite8(0, ioaddr + MIICmd);
-
- if (quirks & rqRhineI) {
- iowrite8(0x01, ioaddr + MIIRegAddr); // MII_BMSR
-
- /* Can be called from ISR. Evil. */
- mdelay(1);
-
- /* 0x80 must be set immediately before turning it off */
- iowrite8(0x80, ioaddr + MIICmd);
-
- RHINE_WAIT_FOR(ioread8(ioaddr + MIIRegAddr) & 0x20);
-
- /* Heh. Now clear 0x80 again. */
- iowrite8(0, ioaddr + MIICmd);
- }
- else
- RHINE_WAIT_FOR(ioread8(ioaddr + MIIRegAddr) & 0x80);
-}
-
-/* Read and write over the MII Management Data I/O (MDIO) interface. */
-
-static int mdio_read(struct net_device *dev, int phy_id, int regnum)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- int result;
-
- rhine_disable_linkmon(ioaddr, rp->quirks);
-
- /* rhine_disable_linkmon already cleared MIICmd */
- iowrite8(phy_id, ioaddr + MIIPhyAddr);
- iowrite8(regnum, ioaddr + MIIRegAddr);
- iowrite8(0x40, ioaddr + MIICmd); /* Trigger read */
- RHINE_WAIT_FOR(!(ioread8(ioaddr + MIICmd) & 0x40));
- result = ioread16(ioaddr + MIIData);
-
- rhine_enable_linkmon(ioaddr);
- return result;
-}
-
-static void mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- rhine_disable_linkmon(ioaddr, rp->quirks);
-
- /* rhine_disable_linkmon already cleared MIICmd */
- iowrite8(phy_id, ioaddr + MIIPhyAddr);
- iowrite8(regnum, ioaddr + MIIRegAddr);
- iowrite16(value, ioaddr + MIIData);
- iowrite8(0x20, ioaddr + MIICmd); /* Trigger write */
- RHINE_WAIT_FOR(!(ioread8(ioaddr + MIICmd) & 0x20));
-
- rhine_enable_linkmon(ioaddr);
-}
-
-static int rhine_open(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- int rc;
-
- rc = request_irq(rp->pdev->irq, rhine_interrupt, IRQF_SHARED, dev->name,
- dev);
- if (rc)
- return rc;
-
- if (debug > 1)
- netdev_dbg(dev, "%s() irq %d\n", __func__, rp->pdev->irq);
-
- rc = alloc_ring(dev);
- if (rc) {
- free_irq(rp->pdev->irq, dev);
- return rc;
- }
- alloc_rbufs(dev);
- alloc_tbufs(dev);
- rhine_chip_reset(dev);
- init_registers(dev);
- if (debug > 2)
- netdev_dbg(dev, "%s() Done - status %04x MII status: %04x\n",
- __func__, ioread16(ioaddr + ChipCmd),
- mdio_read(dev, rp->mii_if.phy_id, MII_BMSR));
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-static void rhine_reset_task(struct work_struct *work)
-{
- struct rhine_private *rp = container_of(work, struct rhine_private,
- reset_task);
- struct net_device *dev = rp->dev;
-
- /* protect against concurrent rx interrupts */
- disable_irq(rp->pdev->irq);
-
- napi_disable(&rp->napi);
-
- spin_lock_bh(&rp->lock);
-
- /* clear all descriptors */
- free_tbufs(dev);
- free_rbufs(dev);
- alloc_tbufs(dev);
- alloc_rbufs(dev);
-
- /* Reinitialize the hardware. */
- rhine_chip_reset(dev);
- init_registers(dev);
-
- spin_unlock_bh(&rp->lock);
- enable_irq(rp->pdev->irq);
-
- dev->trans_start = jiffies; /* prevent tx timeout */
- dev->stats.tx_errors++;
- netif_wake_queue(dev);
-}
-
-static void rhine_tx_timeout(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- netdev_warn(dev, "Transmit timed out, status %04x, PHY status %04x, resetting...\n",
- ioread16(ioaddr + IntrStatus),
- mdio_read(dev, rp->mii_if.phy_id, MII_BMSR));
-
- schedule_work(&rp->reset_task);
-}
-
-static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- unsigned entry;
- unsigned long flags;
-
- /* Caution: the write order is important here, set the field
- with the "ownership" bits last. */
-
- /* Calculate the next Tx descriptor entry. */
- entry = rp->cur_tx % TX_RING_SIZE;
-
- if (skb_padto(skb, ETH_ZLEN))
- return NETDEV_TX_OK;
-
- rp->tx_skbuff[entry] = skb;
-
- if ((rp->quirks & rqRhineI) &&
- (((unsigned long)skb->data & 3) || skb_shinfo(skb)->nr_frags != 0 || skb->ip_summed == CHECKSUM_PARTIAL)) {
- /* Must use alignment buffer. */
- if (skb->len > PKT_BUF_SZ) {
- /* packet too long, drop it */
- dev_kfree_skb(skb);
- rp->tx_skbuff[entry] = NULL;
- dev->stats.tx_dropped++;
- return NETDEV_TX_OK;
- }
-
- /* Padding is not copied and so must be redone. */
- skb_copy_and_csum_dev(skb, rp->tx_buf[entry]);
- if (skb->len < ETH_ZLEN)
- memset(rp->tx_buf[entry] + skb->len, 0,
- ETH_ZLEN - skb->len);
- rp->tx_skbuff_dma[entry] = 0;
- rp->tx_ring[entry].addr = cpu_to_le32(rp->tx_bufs_dma +
- (rp->tx_buf[entry] -
- rp->tx_bufs));
- } else {
- rp->tx_skbuff_dma[entry] =
- pci_map_single(rp->pdev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
- rp->tx_ring[entry].addr = cpu_to_le32(rp->tx_skbuff_dma[entry]);
- }
-
- rp->tx_ring[entry].desc_length =
- cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
-
- if (unlikely(vlan_tx_tag_present(skb))) {
- rp->tx_ring[entry].tx_status = cpu_to_le32((vlan_tx_tag_get(skb)) << 16);
- /* request tagging */
- rp->tx_ring[entry].desc_length |= cpu_to_le32(0x020000);
- }
- else
- rp->tx_ring[entry].tx_status = 0;
-
- /* lock eth irq */
- spin_lock_irqsave(&rp->lock, flags);
- wmb();
- rp->tx_ring[entry].tx_status |= cpu_to_le32(DescOwn);
- wmb();
-
- rp->cur_tx++;
-
- /* Non-x86 Todo: explicitly flush cache lines here. */
-
- if (vlan_tx_tag_present(skb))
- /* Tx queues are bits 7-0 (first Tx queue: bit 7) */
- BYTE_REG_BITS_ON(1 << 7, ioaddr + TQWake);
-
- /* Wake the potentially-idle transmit channel */
- iowrite8(ioread8(ioaddr + ChipCmd1) | Cmd1TxDemand,
- ioaddr + ChipCmd1);
- IOSYNC;
-
- if (rp->cur_tx == rp->dirty_tx + TX_QUEUE_LEN)
- netif_stop_queue(dev);
-
- spin_unlock_irqrestore(&rp->lock, flags);
-
- if (debug > 4) {
- netdev_dbg(dev, "Transmit frame #%d queued in slot %d\n",
- rp->cur_tx-1, entry);
- }
- return NETDEV_TX_OK;
-}
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-static irqreturn_t rhine_interrupt(int irq, void *dev_instance)
-{
- struct net_device *dev = dev_instance;
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- u32 intr_status;
- int boguscnt = max_interrupt_work;
- int handled = 0;
-
- while ((intr_status = get_intr_status(dev))) {
- handled = 1;
-
- /* Acknowledge all of the current interrupt sources ASAP. */
- if (intr_status & IntrTxDescRace)
- iowrite8(0x08, ioaddr + IntrStatus2);
- iowrite16(intr_status & 0xffff, ioaddr + IntrStatus);
- IOSYNC;
-
- if (debug > 4)
- netdev_dbg(dev, "Interrupt, status %08x\n",
- intr_status);
-
- if (intr_status & (IntrRxDone | IntrRxErr | IntrRxDropped |
- IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf)) {
- iowrite16(IntrTxAborted |
- IntrTxDone | IntrTxError | IntrTxUnderrun |
- IntrPCIErr | IntrStatsMax | IntrLinkChange,
- ioaddr + IntrEnable);
-
- napi_schedule(&rp->napi);
- }
-
- if (intr_status & (IntrTxErrSummary | IntrTxDone)) {
- if (intr_status & IntrTxErrSummary) {
- /* Avoid scavenging before Tx engine turned off */
- RHINE_WAIT_FOR(!(ioread8(ioaddr+ChipCmd) & CmdTxOn));
- if (debug > 2 &&
- ioread8(ioaddr+ChipCmd) & CmdTxOn)
- netdev_warn(dev,
- "%s: Tx engine still on\n",
- __func__);
- }
- rhine_tx(dev);
- }
-
- /* Abnormal error summary/uncommon events handlers. */
- if (intr_status & (IntrPCIErr | IntrLinkChange |
- IntrStatsMax | IntrTxError | IntrTxAborted |
- IntrTxUnderrun | IntrTxDescRace))
- rhine_error(dev, intr_status);
-
- if (--boguscnt < 0) {
- netdev_warn(dev, "Too much work at interrupt, status=%#08x\n",
- intr_status);
- break;
- }
- }
-
- if (debug > 3)
- netdev_dbg(dev, "exiting interrupt, status=%08x\n",
- ioread16(ioaddr + IntrStatus));
- return IRQ_RETVAL(handled);
-}
-
-/* This routine is logically part of the interrupt handler, but isolated
- for clarity. */
-static void rhine_tx(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- int txstatus = 0, entry = rp->dirty_tx % TX_RING_SIZE;
-
- spin_lock(&rp->lock);
-
- /* find and cleanup dirty tx descriptors */
- while (rp->dirty_tx != rp->cur_tx) {
- txstatus = le32_to_cpu(rp->tx_ring[entry].tx_status);
- if (debug > 6)
- netdev_dbg(dev, "Tx scavenge %d status %08x\n",
- entry, txstatus);
- if (txstatus & DescOwn)
- break;
- if (txstatus & 0x8000) {
- if (debug > 1)
- netdev_dbg(dev, "Transmit error, Tx status %08x\n",
- txstatus);
- dev->stats.tx_errors++;
- if (txstatus & 0x0400)
- dev->stats.tx_carrier_errors++;
- if (txstatus & 0x0200)
- dev->stats.tx_window_errors++;
- if (txstatus & 0x0100)
- dev->stats.tx_aborted_errors++;
- if (txstatus & 0x0080)
- dev->stats.tx_heartbeat_errors++;
- if (((rp->quirks & rqRhineI) && txstatus & 0x0002) ||
- (txstatus & 0x0800) || (txstatus & 0x1000)) {
- dev->stats.tx_fifo_errors++;
- rp->tx_ring[entry].tx_status = cpu_to_le32(DescOwn);
- break; /* Keep the skb - we try again */
- }
- /* Transmitter restarted in 'abnormal' handler. */
- } else {
- if (rp->quirks & rqRhineI)
- dev->stats.collisions += (txstatus >> 3) & 0x0F;
- else
- dev->stats.collisions += txstatus & 0x0F;
- if (debug > 6)
- netdev_dbg(dev, "collisions: %1.1x:%1.1x\n",
- (txstatus >> 3) & 0xF,
- txstatus & 0xF);
- dev->stats.tx_bytes += rp->tx_skbuff[entry]->len;
- dev->stats.tx_packets++;
- }
- /* Free the original skb. */
- if (rp->tx_skbuff_dma[entry]) {
- pci_unmap_single(rp->pdev,
- rp->tx_skbuff_dma[entry],
- rp->tx_skbuff[entry]->len,
- PCI_DMA_TODEVICE);
- }
- dev_kfree_skb_irq(rp->tx_skbuff[entry]);
- rp->tx_skbuff[entry] = NULL;
- entry = (++rp->dirty_tx) % TX_RING_SIZE;
- }
- if ((rp->cur_tx - rp->dirty_tx) < TX_QUEUE_LEN - 4)
- netif_wake_queue(dev);
-
- spin_unlock(&rp->lock);
-}
-
-/**
- * rhine_get_vlan_tci - extract TCI from Rx data buffer
- * @skb: pointer to sk_buff
- * @data_size: used data area of the buffer including CRC
- *
- * If hardware VLAN tag extraction is enabled and the chip indicates a 802.1Q
- * packet, the extracted 802.1Q header (2 bytes TPID + 2 bytes TCI) is 4-byte
- * aligned following the CRC.
- */
-static inline u16 rhine_get_vlan_tci(struct sk_buff *skb, int data_size)
-{
- u8 *trailer = (u8 *)skb->data + ((data_size + 3) & ~3) + 2;
- return be16_to_cpup((__be16 *)trailer);
-}
-
-/* Process up to limit frames from receive ring */
-static int rhine_rx(struct net_device *dev, int limit)
-{
- struct rhine_private *rp = netdev_priv(dev);
- int count;
- int entry = rp->cur_rx % RX_RING_SIZE;
-
- if (debug > 4) {
- netdev_dbg(dev, "%s(), entry %d status %08x\n",
- __func__, entry,
- le32_to_cpu(rp->rx_head_desc->rx_status));
- }
-
- /* If EOP is set on the next entry, it's a new packet. Send it up. */
- for (count = 0; count < limit; ++count) {
- struct rx_desc *desc = rp->rx_head_desc;
- u32 desc_status = le32_to_cpu(desc->rx_status);
- u32 desc_length = le32_to_cpu(desc->desc_length);
- int data_size = desc_status >> 16;
-
- if (desc_status & DescOwn)
- break;
-
- if (debug > 4)
- netdev_dbg(dev, "%s() status is %08x\n",
- __func__, desc_status);
-
- if ((desc_status & (RxWholePkt | RxErr)) != RxWholePkt) {
- if ((desc_status & RxWholePkt) != RxWholePkt) {
- netdev_warn(dev,
- "Oversized Ethernet frame spanned multiple buffers, "
- "entry %#x length %d status %08x!\n",
- entry, data_size,
- desc_status);
- netdev_warn(dev,
- "Oversized Ethernet frame %p vs %p\n",
- rp->rx_head_desc,
- &rp->rx_ring[entry]);
- dev->stats.rx_length_errors++;
- } else if (desc_status & RxErr) {
- /* There was a error. */
- if (debug > 2)
- netdev_dbg(dev, "%s() Rx error was %08x\n",
- __func__, desc_status);
- dev->stats.rx_errors++;
- if (desc_status & 0x0030)
- dev->stats.rx_length_errors++;
- if (desc_status & 0x0048)
- dev->stats.rx_fifo_errors++;
- if (desc_status & 0x0004)
- dev->stats.rx_frame_errors++;
- if (desc_status & 0x0002) {
- /* this can also be updated outside the interrupt handler */
- spin_lock(&rp->lock);
- dev->stats.rx_crc_errors++;
- spin_unlock(&rp->lock);
- }
- }
- } else {
- struct sk_buff *skb = NULL;
- /* Length should omit the CRC */
- int pkt_len = data_size - 4;
- u16 vlan_tci = 0;
-
- /* Check if the packet is long enough to accept without
- copying to a minimally-sized skbuff. */
- if (pkt_len < rx_copybreak)
- skb = netdev_alloc_skb_ip_align(dev, pkt_len);
- if (skb) {
- pci_dma_sync_single_for_cpu(rp->pdev,
- rp->rx_skbuff_dma[entry],
- rp->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
-
- skb_copy_to_linear_data(skb,
- rp->rx_skbuff[entry]->data,
- pkt_len);
- skb_put(skb, pkt_len);
- pci_dma_sync_single_for_device(rp->pdev,
- rp->rx_skbuff_dma[entry],
- rp->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- } else {
- skb = rp->rx_skbuff[entry];
- if (skb == NULL) {
- netdev_err(dev, "Inconsistent Rx descriptor chain\n");
- break;
- }
- rp->rx_skbuff[entry] = NULL;
- skb_put(skb, pkt_len);
- pci_unmap_single(rp->pdev,
- rp->rx_skbuff_dma[entry],
- rp->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- }
-
- if (unlikely(desc_length & DescTag))
- vlan_tci = rhine_get_vlan_tci(skb, data_size);
-
- skb->protocol = eth_type_trans(skb, dev);
-
- if (unlikely(desc_length & DescTag))
- __vlan_hwaccel_put_tag(skb, vlan_tci);
- netif_receive_skb(skb);
- dev->stats.rx_bytes += pkt_len;
- dev->stats.rx_packets++;
- }
- entry = (++rp->cur_rx) % RX_RING_SIZE;
- rp->rx_head_desc = &rp->rx_ring[entry];
- }
-
- /* Refill the Rx ring buffers. */
- for (; rp->cur_rx - rp->dirty_rx > 0; rp->dirty_rx++) {
- struct sk_buff *skb;
- entry = rp->dirty_rx % RX_RING_SIZE;
- if (rp->rx_skbuff[entry] == NULL) {
- skb = netdev_alloc_skb(dev, rp->rx_buf_sz);
- rp->rx_skbuff[entry] = skb;
- if (skb == NULL)
- break; /* Better luck next round. */
- skb->dev = dev; /* Mark as being used by this device. */
- rp->rx_skbuff_dma[entry] =
- pci_map_single(rp->pdev, skb->data,
- rp->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- rp->rx_ring[entry].addr = cpu_to_le32(rp->rx_skbuff_dma[entry]);
- }
- rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn);
- }
-
- return count;
-}
-
-/*
- * Clears the "tally counters" for CRC errors and missed frames(?).
- * It has been reported that some chips need a write of 0 to clear
- * these, for others the counters are set to 1 when written to and
- * instead cleared when read. So we clear them both ways ...
- */
-static inline void clear_tally_counters(void __iomem *ioaddr)
-{
- iowrite32(0, ioaddr + RxMissed);
- ioread16(ioaddr + RxCRCErrs);
- ioread16(ioaddr + RxMissed);
-}
-
-static void rhine_restart_tx(struct net_device *dev) {
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- int entry = rp->dirty_tx % TX_RING_SIZE;
- u32 intr_status;
-
- /*
- * If new errors occurred, we need to sort them out before doing Tx.
- * In that case the ISR will be back here RSN anyway.
- */
- intr_status = get_intr_status(dev);
-
- if ((intr_status & IntrTxErrSummary) == 0) {
-
- /* We know better than the chip where it should continue. */
- iowrite32(rp->tx_ring_dma + entry * sizeof(struct tx_desc),
- ioaddr + TxRingPtr);
-
- iowrite8(ioread8(ioaddr + ChipCmd) | CmdTxOn,
- ioaddr + ChipCmd);
-
- if (rp->tx_ring[entry].desc_length & cpu_to_le32(0x020000))
- /* Tx queues are bits 7-0 (first Tx queue: bit 7) */
- BYTE_REG_BITS_ON(1 << 7, ioaddr + TQWake);
-
- iowrite8(ioread8(ioaddr + ChipCmd1) | Cmd1TxDemand,
- ioaddr + ChipCmd1);
- IOSYNC;
- }
- else {
- /* This should never happen */
- if (debug > 1)
- netdev_warn(dev, "%s() Another error occurred %08x\n",
- __func__, intr_status);
- }
-
-}
-
-static void rhine_error(struct net_device *dev, int intr_status)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- spin_lock(&rp->lock);
-
- if (intr_status & IntrLinkChange)
- rhine_check_media(dev, 0);
- if (intr_status & IntrStatsMax) {
- dev->stats.rx_crc_errors += ioread16(ioaddr + RxCRCErrs);
- dev->stats.rx_missed_errors += ioread16(ioaddr + RxMissed);
- clear_tally_counters(ioaddr);
- }
- if (intr_status & IntrTxAborted) {
- if (debug > 1)
- netdev_info(dev, "Abort %08x, frame dropped\n",
- intr_status);
- }
- if (intr_status & IntrTxUnderrun) {
- if (rp->tx_thresh < 0xE0)
- BYTE_REG_BITS_SET((rp->tx_thresh += 0x20), 0x80, ioaddr + TxConfig);
- if (debug > 1)
- netdev_info(dev, "Transmitter underrun, Tx threshold now %02x\n",
- rp->tx_thresh);
- }
- if (intr_status & IntrTxDescRace) {
- if (debug > 2)
- netdev_info(dev, "Tx descriptor write-back race\n");
- }
- if ((intr_status & IntrTxError) &&
- (intr_status & (IntrTxAborted |
- IntrTxUnderrun | IntrTxDescRace)) == 0) {
- if (rp->tx_thresh < 0xE0) {
- BYTE_REG_BITS_SET((rp->tx_thresh += 0x20), 0x80, ioaddr + TxConfig);
- }
- if (debug > 1)
- netdev_info(dev, "Unspecified error. Tx threshold now %02x\n",
- rp->tx_thresh);
- }
- if (intr_status & (IntrTxAborted | IntrTxUnderrun | IntrTxDescRace |
- IntrTxError))
- rhine_restart_tx(dev);
-
- if (intr_status & ~(IntrLinkChange | IntrStatsMax | IntrTxUnderrun |
- IntrTxError | IntrTxAborted | IntrNormalSummary |
- IntrTxDescRace)) {
- if (debug > 1)
- netdev_err(dev, "Something Wicked happened! %08x\n",
- intr_status);
- }
-
- spin_unlock(&rp->lock);
-}
-
-static struct net_device_stats *rhine_get_stats(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- unsigned long flags;
-
- spin_lock_irqsave(&rp->lock, flags);
- dev->stats.rx_crc_errors += ioread16(ioaddr + RxCRCErrs);
- dev->stats.rx_missed_errors += ioread16(ioaddr + RxMissed);
- clear_tally_counters(ioaddr);
- spin_unlock_irqrestore(&rp->lock, flags);
-
- return &dev->stats;
-}
-
-static void rhine_set_rx_mode(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
- u32 mc_filter[2]; /* Multicast hash filter */
- u8 rx_mode = 0x0C; /* Note: 0x02=accept runt, 0x01=accept errs */
- struct netdev_hw_addr *ha;
-
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- rx_mode = 0x1C;
- iowrite32(0xffffffff, ioaddr + MulticastFilter0);
- iowrite32(0xffffffff, ioaddr + MulticastFilter1);
- } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to match, or accept all multicasts. */
- iowrite32(0xffffffff, ioaddr + MulticastFilter0);
- iowrite32(0xffffffff, ioaddr + MulticastFilter1);
- } else if (rp->pdev->revision >= VT6105M) {
- int i = 0;
- u32 mCAMmask = 0; /* 32 mCAMs (6105M and better) */
- netdev_for_each_mc_addr(ha, dev) {
- if (i == MCAM_SIZE)
- break;
- rhine_set_cam(ioaddr, i, ha->addr);
- mCAMmask |= 1 << i;
- i++;
- }
- rhine_set_cam_mask(ioaddr, mCAMmask);
- } else {
- memset(mc_filter, 0, sizeof(mc_filter));
- netdev_for_each_mc_addr(ha, dev) {
- int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- }
- iowrite32(mc_filter[0], ioaddr + MulticastFilter0);
- iowrite32(mc_filter[1], ioaddr + MulticastFilter1);
- }
- /* enable/disable VLAN receive filtering */
- if (rp->pdev->revision >= VT6105M) {
- if (dev->flags & IFF_PROMISC)
- BYTE_REG_BITS_OFF(BCR1_VIDFR, ioaddr + PCIBusConfig1);
- else
- BYTE_REG_BITS_ON(BCR1_VIDFR, ioaddr + PCIBusConfig1);
- }
- BYTE_REG_BITS_ON(rx_mode, ioaddr + RxConfig);
-}
-
-static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, pci_name(rp->pdev));
-}
-
-static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rhine_private *rp = netdev_priv(dev);
- int rc;
-
- spin_lock_irq(&rp->lock);
- rc = mii_ethtool_gset(&rp->mii_if, cmd);
- spin_unlock_irq(&rp->lock);
-
- return rc;
-}
-
-static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct rhine_private *rp = netdev_priv(dev);
- int rc;
-
- spin_lock_irq(&rp->lock);
- rc = mii_ethtool_sset(&rp->mii_if, cmd);
- spin_unlock_irq(&rp->lock);
- rhine_set_carrier(&rp->mii_if);
-
- return rc;
-}
-
-static int netdev_nway_reset(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- return mii_nway_restart(&rp->mii_if);
-}
-
-static u32 netdev_get_link(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- return mii_link_ok(&rp->mii_if);
-}
-
-static u32 netdev_get_msglevel(struct net_device *dev)
-{
- return debug;
-}
-
-static void netdev_set_msglevel(struct net_device *dev, u32 value)
-{
- debug = value;
-}
-
-static void rhine_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rhine_private *rp = netdev_priv(dev);
-
- if (!(rp->quirks & rqWOL))
- return;
-
- spin_lock_irq(&rp->lock);
- wol->supported = WAKE_PHY | WAKE_MAGIC |
- WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */
- wol->wolopts = rp->wolopts;
- spin_unlock_irq(&rp->lock);
-}
-
-static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rhine_private *rp = netdev_priv(dev);
- u32 support = WAKE_PHY | WAKE_MAGIC |
- WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */
-
- if (!(rp->quirks & rqWOL))
- return -EINVAL;
-
- if (wol->wolopts & ~support)
- return -EINVAL;
-
- spin_lock_irq(&rp->lock);
- rp->wolopts = wol->wolopts;
- spin_unlock_irq(&rp->lock);
-
- return 0;
-}
-
-static const struct ethtool_ops netdev_ethtool_ops = {
- .get_drvinfo = netdev_get_drvinfo,
- .get_settings = netdev_get_settings,
- .set_settings = netdev_set_settings,
- .nway_reset = netdev_nway_reset,
- .get_link = netdev_get_link,
- .get_msglevel = netdev_get_msglevel,
- .set_msglevel = netdev_set_msglevel,
- .get_wol = rhine_get_wol,
- .set_wol = rhine_set_wol,
-};
-
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct rhine_private *rp = netdev_priv(dev);
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irq(&rp->lock);
- rc = generic_mii_ioctl(&rp->mii_if, if_mii(rq), cmd, NULL);
- spin_unlock_irq(&rp->lock);
- rhine_set_carrier(&rp->mii_if);
-
- return rc;
-}
-
-static int rhine_close(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- napi_disable(&rp->napi);
- cancel_work_sync(&rp->reset_task);
- netif_stop_queue(dev);
-
- spin_lock_irq(&rp->lock);
-
- if (debug > 1)
- netdev_dbg(dev, "Shutting down ethercard, status was %04x\n",
- ioread16(ioaddr + ChipCmd));
-
- /* Switch to loopback mode to avoid hardware races. */
- iowrite8(rp->tx_thresh | 0x02, ioaddr + TxConfig);
-
- /* Disable interrupts by clearing the interrupt mask. */
- iowrite16(0x0000, ioaddr + IntrEnable);
-
- /* Stop the chip's Tx and Rx processes. */
- iowrite16(CmdStop, ioaddr + ChipCmd);
-
- spin_unlock_irq(&rp->lock);
-
- free_irq(rp->pdev->irq, dev);
- free_rbufs(dev);
- free_tbufs(dev);
- free_ring(dev);
-
- return 0;
-}
-
-
-static void __devexit rhine_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rhine_private *rp = netdev_priv(dev);
-
- unregister_netdev(dev);
-
- pci_iounmap(pdev, rp->base);
- pci_release_regions(pdev);
-
- free_netdev(dev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-}
-
-static void rhine_shutdown (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rhine_private *rp = netdev_priv(dev);
- void __iomem *ioaddr = rp->base;
-
- if (!(rp->quirks & rqWOL))
- return; /* Nothing to do for non-WOL adapters */
-
- rhine_power_init(dev);
-
- /* Make sure we use pattern 0, 1 and not 4, 5 */
- if (rp->quirks & rq6patterns)
- iowrite8(0x04, ioaddr + WOLcgClr);
-
- if (rp->wolopts & WAKE_MAGIC) {
- iowrite8(WOLmagic, ioaddr + WOLcrSet);
- /*
- * Turn EEPROM-controlled wake-up back on -- some hardware may
- * not cooperate otherwise.
- */
- iowrite8(ioread8(ioaddr + ConfigA) | 0x03, ioaddr + ConfigA);
- }
-
- if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
- iowrite8(WOLbmcast, ioaddr + WOLcgSet);
-
- if (rp->wolopts & WAKE_PHY)
- iowrite8(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
-
- if (rp->wolopts & WAKE_UCAST)
- iowrite8(WOLucast, ioaddr + WOLcrSet);
-
- if (rp->wolopts) {
- /* Enable legacy WOL (for old motherboards) */
- iowrite8(0x01, ioaddr + PwcfgSet);
- iowrite8(ioread8(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
- }
-
- /* Hit power state D3 (sleep) */
- if (!avoid_D3)
- iowrite8(ioread8(ioaddr + StickyHW) | 0x03, ioaddr + StickyHW);
-
- /* TODO: Check use of pci_enable_wake() */
-
-}
-
-#ifdef CONFIG_PM
-static int rhine_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rhine_private *rp = netdev_priv(dev);
- unsigned long flags;
-
- if (!netif_running(dev))
- return 0;
-
- napi_disable(&rp->napi);
-
- netif_device_detach(dev);
- pci_save_state(pdev);
-
- spin_lock_irqsave(&rp->lock, flags);
- rhine_shutdown(pdev);
- spin_unlock_irqrestore(&rp->lock, flags);
-
- free_irq(dev->irq, dev);
- return 0;
-}
-
-static int rhine_resume(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
- struct rhine_private *rp = netdev_priv(dev);
- unsigned long flags;
- int ret;
-
- if (!netif_running(dev))
- return 0;
-
- if (request_irq(dev->irq, rhine_interrupt, IRQF_SHARED, dev->name, dev))
- netdev_err(dev, "request_irq failed\n");
-
- ret = pci_set_power_state(pdev, PCI_D0);
- if (debug > 1)
- netdev_info(dev, "Entering power state D0 %s (%d)\n",
- ret ? "failed" : "succeeded", ret);
-
- pci_restore_state(pdev);
-
- spin_lock_irqsave(&rp->lock, flags);
-#ifdef USE_MMIO
- enable_mmio(rp->pioaddr, rp->quirks);
-#endif
- rhine_power_init(dev);
- free_tbufs(dev);
- free_rbufs(dev);
- alloc_tbufs(dev);
- alloc_rbufs(dev);
- init_registers(dev);
- spin_unlock_irqrestore(&rp->lock, flags);
-
- netif_device_attach(dev);
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static struct pci_driver rhine_driver = {
- .name = DRV_NAME,
- .id_table = rhine_pci_tbl,
- .probe = rhine_init_one,
- .remove = __devexit_p(rhine_remove_one),
-#ifdef CONFIG_PM
- .suspend = rhine_suspend,
- .resume = rhine_resume,
-#endif /* CONFIG_PM */
- .shutdown = rhine_shutdown,
-};
-
-static struct dmi_system_id __initdata rhine_dmi_table[] = {
- {
- .ident = "EPIA-M",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "Award Software International, Inc."),
- DMI_MATCH(DMI_BIOS_VERSION, "6.00 PG"),
- },
- },
- {
- .ident = "KV7",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
- DMI_MATCH(DMI_BIOS_VERSION, "6.00 PG"),
- },
- },
- { NULL }
-};
-
-static int __init rhine_init(void)
-{
-/* when a module, this is printed whether or not devices are found in probe */
-#ifdef MODULE
- pr_info("%s\n", version);
-#endif
- if (dmi_check_system(rhine_dmi_table)) {
- /* these BIOSes fail at PXE boot if chip is in D3 */
- avoid_D3 = 1;
- pr_warn("Broken BIOS detected, avoid_D3 enabled\n");
- }
- else if (avoid_D3)
- pr_info("avoid_D3 set\n");
-
- return pci_register_driver(&rhine_driver);
-}
-
-
-static void __exit rhine_cleanup(void)
-{
- pci_unregister_driver(&rhine_driver);
-}
-
-
-module_init(rhine_init);
-module_exit(rhine_cleanup);
git.samba.org / sfrench / cifs-2.6.git / blobdiff