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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-03-30 07:46:36 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 19:54:11 -0700
commitb955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (patch)
tree88e47fa3369f95c5673d4d654ae5f432cdc79048 /drivers/net/pcnet32.c
parentca7a8e85262e93065b2a49dfb96a24d4a534a049 (diff)
downloadtalos-obmc-linux-b955f6ca776f3bab3d1e2c5fb1d247b203cbda14.tar.gz
talos-obmc-linux-b955f6ca776f3bab3d1e2c5fb1d247b203cbda14.zip
amd: Move AMD (Lance) chipset drivers
Moves the drivers for the AMD chipsets into drivers/net/ethernet/amd/ and the necessary Kconfig and Makfile changes. The au1000 (Alchemy) driver was also moved into the same directory even though it is not a "Lance" driver. CC: Peter Maydell <pmaydell@chiark.greenend.org.uk> CC: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> CC: "Maciej W. Rozycki" <macro@linux-mips.org> CC: Donald Becker <becker@scyld.com> CC: Sam Creasey <sammy@users.qual.net> CC: Miguel de Icaza <miguel@nuclecu.unam.mx> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> CC: Don Fry <pcnet32@frontier.com> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Russell King <linux@arm.linux.org.uk> CC: David Davies <davies@maniac.ultranet.com> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Pete Popov <ppopov@embeddedalley.com> CC: David Hinds <dahinds@users.sourceforge.net> CC: "Roger C. Pao" <rpao@paonet.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/pcnet32.c')
-rw-r--r--drivers/net/pcnet32.c2937
1 files changed, 0 insertions, 2937 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
deleted file mode 100644
index 8b3090dc4bcd..000000000000
--- a/drivers/net/pcnet32.c
+++ /dev/null
@@ -1,2937 +0,0 @@
-/* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */
-/*
- * Copyright 1996-1999 Thomas Bogendoerfer
- *
- * Derived from the lance driver written 1993,1994,1995 by Donald Becker.
- *
- * Copyright 1993 United States Government as represented by the
- * Director, National Security Agency.
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * This driver is for PCnet32 and PCnetPCI based ethercards
- */
-/**************************************************************************
- * 23 Oct, 2000.
- * Fixed a few bugs, related to running the controller in 32bit mode.
- *
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
- *
- *************************************************************************/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define DRV_NAME "pcnet32"
-#define DRV_VERSION "1.35"
-#define DRV_RELDATE "21.Apr.2008"
-#define PFX DRV_NAME ": "
-
-static const char *const version =
- DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n";
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/crc32.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/if_ether.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/moduleparam.h>
-#include <linux/bitops.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include <asm/dma.h>
-#include <asm/irq.h>
-
-/*
- * PCI device identifiers for "new style" Linux PCI Device Drivers
- */
-static DEFINE_PCI_DEVICE_TABLE(pcnet32_pci_tbl) = {
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), },
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), },
-
- /*
- * Adapters that were sold with IBM's RS/6000 or pSeries hardware have
- * the incorrect vendor id.
- */
- { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE),
- .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, },
-
- { } /* terminate list */
-};
-
-MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl);
-
-static int cards_found;
-
-/*
- * VLB I/O addresses
- */
-static unsigned int pcnet32_portlist[] __initdata =
- { 0x300, 0x320, 0x340, 0x360, 0 };
-
-static int pcnet32_debug;
-static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */
-static int pcnet32vlb; /* check for VLB cards ? */
-
-static struct net_device *pcnet32_dev;
-
-static int max_interrupt_work = 2;
-static int rx_copybreak = 200;
-
-#define PCNET32_PORT_AUI 0x00
-#define PCNET32_PORT_10BT 0x01
-#define PCNET32_PORT_GPSI 0x02
-#define PCNET32_PORT_MII 0x03
-
-#define PCNET32_PORT_PORTSEL 0x03
-#define PCNET32_PORT_ASEL 0x04
-#define PCNET32_PORT_100 0x40
-#define PCNET32_PORT_FD 0x80
-
-#define PCNET32_DMA_MASK 0xffffffff
-
-#define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ))
-#define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4))
-
-/*
- * table to translate option values from tulip
- * to internal options
- */
-static const unsigned char options_mapping[] = {
- PCNET32_PORT_ASEL, /* 0 Auto-select */
- PCNET32_PORT_AUI, /* 1 BNC/AUI */
- PCNET32_PORT_AUI, /* 2 AUI/BNC */
- PCNET32_PORT_ASEL, /* 3 not supported */
- PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */
- PCNET32_PORT_ASEL, /* 5 not supported */
- PCNET32_PORT_ASEL, /* 6 not supported */
- PCNET32_PORT_ASEL, /* 7 not supported */
- PCNET32_PORT_ASEL, /* 8 not supported */
- PCNET32_PORT_MII, /* 9 MII 10baseT */
- PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */
- PCNET32_PORT_MII, /* 11 MII (autosel) */
- PCNET32_PORT_10BT, /* 12 10BaseT */
- PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */
- /* 14 MII 100BaseTx-FD */
- PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD,
- PCNET32_PORT_ASEL /* 15 not supported */
-};
-
-static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = {
- "Loopback test (offline)"
-};
-
-#define PCNET32_TEST_LEN ARRAY_SIZE(pcnet32_gstrings_test)
-
-#define PCNET32_NUM_REGS 136
-
-#define MAX_UNITS 8 /* More are supported, limit only on options */
-static int options[MAX_UNITS];
-static int full_duplex[MAX_UNITS];
-static int homepna[MAX_UNITS];
-
-/*
- * Theory of Operation
- *
- * This driver uses the same software structure as the normal lance
- * driver. So look for a verbose description in lance.c. The differences
- * to the normal lance driver is the use of the 32bit mode of PCnet32
- * and PCnetPCI chips. Because these chips are 32bit chips, there is no
- * 16MB limitation and we don't need bounce buffers.
- */
-
-/*
- * Set the number of Tx and Rx buffers, using Log_2(# buffers).
- * Reasonable default values are 4 Tx buffers, and 16 Rx buffers.
- * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4).
- */
-#ifndef PCNET32_LOG_TX_BUFFERS
-#define PCNET32_LOG_TX_BUFFERS 4
-#define PCNET32_LOG_RX_BUFFERS 5
-#define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */
-#define PCNET32_LOG_MAX_RX_BUFFERS 9
-#endif
-
-#define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS))
-#define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS))
-
-#define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS))
-#define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS))
-
-#define PKT_BUF_SKB 1544
-/* actual buffer length after being aligned */
-#define PKT_BUF_SIZE (PKT_BUF_SKB - NET_IP_ALIGN)
-/* chip wants twos complement of the (aligned) buffer length */
-#define NEG_BUF_SIZE (NET_IP_ALIGN - PKT_BUF_SKB)
-
-/* Offsets from base I/O address. */
-#define PCNET32_WIO_RDP 0x10
-#define PCNET32_WIO_RAP 0x12
-#define PCNET32_WIO_RESET 0x14
-#define PCNET32_WIO_BDP 0x16
-
-#define PCNET32_DWIO_RDP 0x10
-#define PCNET32_DWIO_RAP 0x14
-#define PCNET32_DWIO_RESET 0x18
-#define PCNET32_DWIO_BDP 0x1C
-
-#define PCNET32_TOTAL_SIZE 0x20
-
-#define CSR0 0
-#define CSR0_INIT 0x1
-#define CSR0_START 0x2
-#define CSR0_STOP 0x4
-#define CSR0_TXPOLL 0x8
-#define CSR0_INTEN 0x40
-#define CSR0_IDON 0x0100
-#define CSR0_NORMAL (CSR0_START | CSR0_INTEN)
-#define PCNET32_INIT_LOW 1
-#define PCNET32_INIT_HIGH 2
-#define CSR3 3
-#define CSR4 4
-#define CSR5 5
-#define CSR5_SUSPEND 0x0001
-#define CSR15 15
-#define PCNET32_MC_FILTER 8
-
-#define PCNET32_79C970A 0x2621
-
-/* The PCNET32 Rx and Tx ring descriptors. */
-struct pcnet32_rx_head {
- __le32 base;
- __le16 buf_length; /* two`s complement of length */
- __le16 status;
- __le32 msg_length;
- __le32 reserved;
-};
-
-struct pcnet32_tx_head {
- __le32 base;
- __le16 length; /* two`s complement of length */
- __le16 status;
- __le32 misc;
- __le32 reserved;
-};
-
-/* The PCNET32 32-Bit initialization block, described in databook. */
-struct pcnet32_init_block {
- __le16 mode;
- __le16 tlen_rlen;
- u8 phys_addr[6];
- __le16 reserved;
- __le32 filter[2];
- /* Receive and transmit ring base, along with extra bits. */
- __le32 rx_ring;
- __le32 tx_ring;
-};
-
-/* PCnet32 access functions */
-struct pcnet32_access {
- u16 (*read_csr) (unsigned long, int);
- void (*write_csr) (unsigned long, int, u16);
- u16 (*read_bcr) (unsigned long, int);
- void (*write_bcr) (unsigned long, int, u16);
- u16 (*read_rap) (unsigned long);
- void (*write_rap) (unsigned long, u16);
- void (*reset) (unsigned long);
-};
-
-/*
- * The first field of pcnet32_private is read by the ethernet device
- * so the structure should be allocated using pci_alloc_consistent().
- */
-struct pcnet32_private {
- struct pcnet32_init_block *init_block;
- /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */
- struct pcnet32_rx_head *rx_ring;
- struct pcnet32_tx_head *tx_ring;
- dma_addr_t init_dma_addr;/* DMA address of beginning of the init block,
- returned by pci_alloc_consistent */
- struct pci_dev *pci_dev;
- const char *name;
- /* The saved address of a sent-in-place packet/buffer, for skfree(). */
- struct sk_buff **tx_skbuff;
- struct sk_buff **rx_skbuff;
- dma_addr_t *tx_dma_addr;
- dma_addr_t *rx_dma_addr;
- struct pcnet32_access a;
- spinlock_t lock; /* Guard lock */
- unsigned int cur_rx, cur_tx; /* The next free ring entry */
- unsigned int rx_ring_size; /* current rx ring size */
- unsigned int tx_ring_size; /* current tx ring size */
- unsigned int rx_mod_mask; /* rx ring modular mask */
- unsigned int tx_mod_mask; /* tx ring modular mask */
- unsigned short rx_len_bits;
- unsigned short tx_len_bits;
- dma_addr_t rx_ring_dma_addr;
- dma_addr_t tx_ring_dma_addr;
- unsigned int dirty_rx, /* ring entries to be freed. */
- dirty_tx;
-
- struct net_device *dev;
- struct napi_struct napi;
- char tx_full;
- char phycount; /* number of phys found */
- int options;
- unsigned int shared_irq:1, /* shared irq possible */
- dxsuflo:1, /* disable transmit stop on uflo */
- mii:1; /* mii port available */
- struct net_device *next;
- struct mii_if_info mii_if;
- struct timer_list watchdog_timer;
- u32 msg_enable; /* debug message level */
-
- /* each bit indicates an available PHY */
- u32 phymask;
- unsigned short chip_version; /* which variant this is */
-
- /* saved registers during ethtool blink */
- u16 save_regs[4];
-};
-
-static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *);
-static int pcnet32_probe1(unsigned long, int, struct pci_dev *);
-static int pcnet32_open(struct net_device *);
-static int pcnet32_init_ring(struct net_device *);
-static netdev_tx_t pcnet32_start_xmit(struct sk_buff *,
- struct net_device *);
-static void pcnet32_tx_timeout(struct net_device *dev);
-static irqreturn_t pcnet32_interrupt(int, void *);
-static int pcnet32_close(struct net_device *);
-static struct net_device_stats *pcnet32_get_stats(struct net_device *);
-static void pcnet32_load_multicast(struct net_device *dev);
-static void pcnet32_set_multicast_list(struct net_device *);
-static int pcnet32_ioctl(struct net_device *, struct ifreq *, int);
-static void pcnet32_watchdog(struct net_device *);
-static int mdio_read(struct net_device *dev, int phy_id, int reg_num);
-static void mdio_write(struct net_device *dev, int phy_id, int reg_num,
- int val);
-static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits);
-static void pcnet32_ethtool_test(struct net_device *dev,
- struct ethtool_test *eth_test, u64 * data);
-static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1);
-static int pcnet32_get_regs_len(struct net_device *dev);
-static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *ptr);
-static void pcnet32_purge_tx_ring(struct net_device *dev);
-static int pcnet32_alloc_ring(struct net_device *dev, const char *name);
-static void pcnet32_free_ring(struct net_device *dev);
-static void pcnet32_check_media(struct net_device *dev, int verbose);
-
-static u16 pcnet32_wio_read_csr(unsigned long addr, int index)
-{
- outw(index, addr + PCNET32_WIO_RAP);
- return inw(addr + PCNET32_WIO_RDP);
-}
-
-static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val)
-{
- outw(index, addr + PCNET32_WIO_RAP);
- outw(val, addr + PCNET32_WIO_RDP);
-}
-
-static u16 pcnet32_wio_read_bcr(unsigned long addr, int index)
-{
- outw(index, addr + PCNET32_WIO_RAP);
- return inw(addr + PCNET32_WIO_BDP);
-}
-
-static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val)
-{
- outw(index, addr + PCNET32_WIO_RAP);
- outw(val, addr + PCNET32_WIO_BDP);
-}
-
-static u16 pcnet32_wio_read_rap(unsigned long addr)
-{
- return inw(addr + PCNET32_WIO_RAP);
-}
-
-static void pcnet32_wio_write_rap(unsigned long addr, u16 val)
-{
- outw(val, addr + PCNET32_WIO_RAP);
-}
-
-static void pcnet32_wio_reset(unsigned long addr)
-{
- inw(addr + PCNET32_WIO_RESET);
-}
-
-static int pcnet32_wio_check(unsigned long addr)
-{
- outw(88, addr + PCNET32_WIO_RAP);
- return inw(addr + PCNET32_WIO_RAP) == 88;
-}
-
-static struct pcnet32_access pcnet32_wio = {
- .read_csr = pcnet32_wio_read_csr,
- .write_csr = pcnet32_wio_write_csr,
- .read_bcr = pcnet32_wio_read_bcr,
- .write_bcr = pcnet32_wio_write_bcr,
- .read_rap = pcnet32_wio_read_rap,
- .write_rap = pcnet32_wio_write_rap,
- .reset = pcnet32_wio_reset
-};
-
-static u16 pcnet32_dwio_read_csr(unsigned long addr, int index)
-{
- outl(index, addr + PCNET32_DWIO_RAP);
- return inl(addr + PCNET32_DWIO_RDP) & 0xffff;
-}
-
-static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val)
-{
- outl(index, addr + PCNET32_DWIO_RAP);
- outl(val, addr + PCNET32_DWIO_RDP);
-}
-
-static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index)
-{
- outl(index, addr + PCNET32_DWIO_RAP);
- return inl(addr + PCNET32_DWIO_BDP) & 0xffff;
-}
-
-static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val)
-{
- outl(index, addr + PCNET32_DWIO_RAP);
- outl(val, addr + PCNET32_DWIO_BDP);
-}
-
-static u16 pcnet32_dwio_read_rap(unsigned long addr)
-{
- return inl(addr + PCNET32_DWIO_RAP) & 0xffff;
-}
-
-static void pcnet32_dwio_write_rap(unsigned long addr, u16 val)
-{
- outl(val, addr + PCNET32_DWIO_RAP);
-}
-
-static void pcnet32_dwio_reset(unsigned long addr)
-{
- inl(addr + PCNET32_DWIO_RESET);
-}
-
-static int pcnet32_dwio_check(unsigned long addr)
-{
- outl(88, addr + PCNET32_DWIO_RAP);
- return (inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88;
-}
-
-static struct pcnet32_access pcnet32_dwio = {
- .read_csr = pcnet32_dwio_read_csr,
- .write_csr = pcnet32_dwio_write_csr,
- .read_bcr = pcnet32_dwio_read_bcr,
- .write_bcr = pcnet32_dwio_write_bcr,
- .read_rap = pcnet32_dwio_read_rap,
- .write_rap = pcnet32_dwio_write_rap,
- .reset = pcnet32_dwio_reset
-};
-
-static void pcnet32_netif_stop(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
-
- dev->trans_start = jiffies; /* prevent tx timeout */
- napi_disable(&lp->napi);
- netif_tx_disable(dev);
-}
-
-static void pcnet32_netif_start(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- ulong ioaddr = dev->base_addr;
- u16 val;
-
- netif_wake_queue(dev);
- val = lp->a.read_csr(ioaddr, CSR3);
- val &= 0x00ff;
- lp->a.write_csr(ioaddr, CSR3, val);
- napi_enable(&lp->napi);
-}
-
-/*
- * Allocate space for the new sized tx ring.
- * Free old resources
- * Save new resources.
- * Any failure keeps old resources.
- * Must be called with lp->lock held.
- */
-static void pcnet32_realloc_tx_ring(struct net_device *dev,
- struct pcnet32_private *lp,
- unsigned int size)
-{
- dma_addr_t new_ring_dma_addr;
- dma_addr_t *new_dma_addr_list;
- struct pcnet32_tx_head *new_tx_ring;
- struct sk_buff **new_skb_list;
-
- pcnet32_purge_tx_ring(dev);
-
- new_tx_ring = pci_alloc_consistent(lp->pci_dev,
- sizeof(struct pcnet32_tx_head) *
- (1 << size),
- &new_ring_dma_addr);
- if (new_tx_ring == NULL) {
- netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
- return;
- }
- memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
-
- new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
- GFP_ATOMIC);
- if (!new_dma_addr_list) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- goto free_new_tx_ring;
- }
-
- new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
- GFP_ATOMIC);
- if (!new_skb_list) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- goto free_new_lists;
- }
-
- kfree(lp->tx_skbuff);
- kfree(lp->tx_dma_addr);
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_tx_head) *
- lp->tx_ring_size, lp->tx_ring,
- lp->tx_ring_dma_addr);
-
- lp->tx_ring_size = (1 << size);
- lp->tx_mod_mask = lp->tx_ring_size - 1;
- lp->tx_len_bits = (size << 12);
- lp->tx_ring = new_tx_ring;
- lp->tx_ring_dma_addr = new_ring_dma_addr;
- lp->tx_dma_addr = new_dma_addr_list;
- lp->tx_skbuff = new_skb_list;
- return;
-
-free_new_lists:
- kfree(new_dma_addr_list);
-free_new_tx_ring:
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_tx_head) *
- (1 << size),
- new_tx_ring,
- new_ring_dma_addr);
-}
-
-/*
- * Allocate space for the new sized rx ring.
- * Re-use old receive buffers.
- * alloc extra buffers
- * free unneeded buffers
- * free unneeded buffers
- * Save new resources.
- * Any failure keeps old resources.
- * Must be called with lp->lock held.
- */
-static void pcnet32_realloc_rx_ring(struct net_device *dev,
- struct pcnet32_private *lp,
- unsigned int size)
-{
- dma_addr_t new_ring_dma_addr;
- dma_addr_t *new_dma_addr_list;
- struct pcnet32_rx_head *new_rx_ring;
- struct sk_buff **new_skb_list;
- int new, overlap;
-
- new_rx_ring = pci_alloc_consistent(lp->pci_dev,
- sizeof(struct pcnet32_rx_head) *
- (1 << size),
- &new_ring_dma_addr);
- if (new_rx_ring == NULL) {
- netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
- return;
- }
- memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size));
-
- new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
- GFP_ATOMIC);
- if (!new_dma_addr_list) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- goto free_new_rx_ring;
- }
-
- new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
- GFP_ATOMIC);
- if (!new_skb_list) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- goto free_new_lists;
- }
-
- /* first copy the current receive buffers */
- overlap = min(size, lp->rx_ring_size);
- for (new = 0; new < overlap; new++) {
- new_rx_ring[new] = lp->rx_ring[new];
- new_dma_addr_list[new] = lp->rx_dma_addr[new];
- new_skb_list[new] = lp->rx_skbuff[new];
- }
- /* now allocate any new buffers needed */
- for (; new < size; new++) {
- struct sk_buff *rx_skbuff;
- new_skb_list[new] = dev_alloc_skb(PKT_BUF_SKB);
- rx_skbuff = new_skb_list[new];
- if (!rx_skbuff) {
- /* keep the original lists and buffers */
- netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
- __func__);
- goto free_all_new;
- }
- skb_reserve(rx_skbuff, NET_IP_ALIGN);
-
- new_dma_addr_list[new] =
- pci_map_single(lp->pci_dev, rx_skbuff->data,
- PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
- new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]);
- new_rx_ring[new].buf_length = cpu_to_le16(NEG_BUF_SIZE);
- new_rx_ring[new].status = cpu_to_le16(0x8000);
- }
- /* and free any unneeded buffers */
- for (; new < lp->rx_ring_size; new++) {
- if (lp->rx_skbuff[new]) {
- pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new],
- PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(lp->rx_skbuff[new]);
- }
- }
-
- kfree(lp->rx_skbuff);
- kfree(lp->rx_dma_addr);
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_rx_head) *
- lp->rx_ring_size, lp->rx_ring,
- lp->rx_ring_dma_addr);
-
- lp->rx_ring_size = (1 << size);
- lp->rx_mod_mask = lp->rx_ring_size - 1;
- lp->rx_len_bits = (size << 4);
- lp->rx_ring = new_rx_ring;
- lp->rx_ring_dma_addr = new_ring_dma_addr;
- lp->rx_dma_addr = new_dma_addr_list;
- lp->rx_skbuff = new_skb_list;
- return;
-
-free_all_new:
- while (--new >= lp->rx_ring_size) {
- if (new_skb_list[new]) {
- pci_unmap_single(lp->pci_dev, new_dma_addr_list[new],
- PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(new_skb_list[new]);
- }
- }
- kfree(new_skb_list);
-free_new_lists:
- kfree(new_dma_addr_list);
-free_new_rx_ring:
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_rx_head) *
- (1 << size),
- new_rx_ring,
- new_ring_dma_addr);
-}
-
-static void pcnet32_purge_rx_ring(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int i;
-
- /* free all allocated skbuffs */
- for (i = 0; i < lp->rx_ring_size; i++) {
- lp->rx_ring[i].status = 0; /* CPU owns buffer */
- wmb(); /* Make sure adapter sees owner change */
- if (lp->rx_skbuff[i]) {
- pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i],
- PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
- dev_kfree_skb_any(lp->rx_skbuff[i]);
- }
- lp->rx_skbuff[i] = NULL;
- lp->rx_dma_addr[i] = 0;
- }
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void pcnet32_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- pcnet32_interrupt(0, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
- int r = -EOPNOTSUPP;
-
- if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
- mii_ethtool_gset(&lp->mii_if, cmd);
- spin_unlock_irqrestore(&lp->lock, flags);
- r = 0;
- }
- return r;
-}
-
-static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
- int r = -EOPNOTSUPP;
-
- if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
- r = mii_ethtool_sset(&lp->mii_if, cmd);
- spin_unlock_irqrestore(&lp->lock, flags);
- }
- return r;
-}
-
-static void pcnet32_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
-
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- if (lp->pci_dev)
- strcpy(info->bus_info, pci_name(lp->pci_dev));
- else
- sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr);
-}
-
-static u32 pcnet32_get_link(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
- int r;
-
- spin_lock_irqsave(&lp->lock, flags);
- if (lp->mii) {
- r = mii_link_ok(&lp->mii_if);
- } else if (lp->chip_version >= PCNET32_79C970A) {
- ulong ioaddr = dev->base_addr; /* card base I/O address */
- r = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
- } else { /* can not detect link on really old chips */
- r = 1;
- }
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return r;
-}
-
-static u32 pcnet32_get_msglevel(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- return lp->msg_enable;
-}
-
-static void pcnet32_set_msglevel(struct net_device *dev, u32 value)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- lp->msg_enable = value;
-}
-
-static int pcnet32_nway_reset(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
- int r = -EOPNOTSUPP;
-
- if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
- r = mii_nway_restart(&lp->mii_if);
- spin_unlock_irqrestore(&lp->lock, flags);
- }
- return r;
-}
-
-static void pcnet32_get_ringparam(struct net_device *dev,
- struct ethtool_ringparam *ering)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
-
- ering->tx_max_pending = TX_MAX_RING_SIZE;
- ering->tx_pending = lp->tx_ring_size;
- ering->rx_max_pending = RX_MAX_RING_SIZE;
- ering->rx_pending = lp->rx_ring_size;
-}
-
-static int pcnet32_set_ringparam(struct net_device *dev,
- struct ethtool_ringparam *ering)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
- unsigned int size;
- ulong ioaddr = dev->base_addr;
- int i;
-
- if (ering->rx_mini_pending || ering->rx_jumbo_pending)
- return -EINVAL;
-
- if (netif_running(dev))
- pcnet32_netif_stop(dev);
-
- spin_lock_irqsave(&lp->lock, flags);
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
-
- size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE);
-
- /* set the minimum ring size to 4, to allow the loopback test to work
- * unchanged.
- */
- for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) {
- if (size <= (1 << i))
- break;
- }
- if ((1 << i) != lp->tx_ring_size)
- pcnet32_realloc_tx_ring(dev, lp, i);
-
- size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE);
- for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) {
- if (size <= (1 << i))
- break;
- }
- if ((1 << i) != lp->rx_ring_size)
- pcnet32_realloc_rx_ring(dev, lp, i);
-
- lp->napi.weight = lp->rx_ring_size / 2;
-
- if (netif_running(dev)) {
- pcnet32_netif_start(dev);
- pcnet32_restart(dev, CSR0_NORMAL);
- }
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- netif_info(lp, drv, dev, "Ring Param Settings: RX: %d, TX: %d\n",
- lp->rx_ring_size, lp->tx_ring_size);
-
- return 0;
-}
-
-static void pcnet32_get_strings(struct net_device *dev, u32 stringset,
- u8 *data)
-{
- memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test));
-}
-
-static int pcnet32_get_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_TEST:
- return PCNET32_TEST_LEN;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void pcnet32_ethtool_test(struct net_device *dev,
- struct ethtool_test *test, u64 * data)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int rc;
-
- if (test->flags == ETH_TEST_FL_OFFLINE) {
- rc = pcnet32_loopback_test(dev, data);
- if (rc) {
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Loopback test failed\n");
- test->flags |= ETH_TEST_FL_FAILED;
- } else
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Loopback test passed\n");
- } else
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "No tests to run (specify 'Offline' on ethtool)\n");
-} /* end pcnet32_ethtool_test */
-
-static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- struct pcnet32_access *a = &lp->a; /* access to registers */
- ulong ioaddr = dev->base_addr; /* card base I/O address */
- struct sk_buff *skb; /* sk buff */
- int x, i; /* counters */
- int numbuffs = 4; /* number of TX/RX buffers and descs */
- u16 status = 0x8300; /* TX ring status */
- __le16 teststatus; /* test of ring status */
- int rc; /* return code */
- int size; /* size of packets */
- unsigned char *packet; /* source packet data */
- static const int data_len = 60; /* length of source packets */
- unsigned long flags;
- unsigned long ticks;
-
- rc = 1; /* default to fail */
-
- if (netif_running(dev))
- pcnet32_netif_stop(dev);
-
- spin_lock_irqsave(&lp->lock, flags);
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
-
- numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size));
-
- /* Reset the PCNET32 */
- lp->a.reset(ioaddr);
- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
-
- /* switch pcnet32 to 32bit mode */
- lp->a.write_bcr(ioaddr, 20, 2);
-
- /* purge & init rings but don't actually restart */
- pcnet32_restart(dev, 0x0000);
-
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
-
- /* Initialize Transmit buffers. */
- size = data_len + 15;
- for (x = 0; x < numbuffs; x++) {
- skb = dev_alloc_skb(size);
- if (!skb) {
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Cannot allocate skb at line: %d!\n",
- __LINE__);
- goto clean_up;
- }
- packet = skb->data;
- skb_put(skb, size); /* create space for data */
- lp->tx_skbuff[x] = skb;
- lp->tx_ring[x].length = cpu_to_le16(-skb->len);
- lp->tx_ring[x].misc = 0;
-
- /* put DA and SA into the skb */
- for (i = 0; i < 6; i++)
- *packet++ = dev->dev_addr[i];
- for (i = 0; i < 6; i++)
- *packet++ = dev->dev_addr[i];
- /* type */
- *packet++ = 0x08;
- *packet++ = 0x06;
- /* packet number */
- *packet++ = x;
- /* fill packet with data */
- for (i = 0; i < data_len; i++)
- *packet++ = i;
-
- lp->tx_dma_addr[x] =
- pci_map_single(lp->pci_dev, skb->data, skb->len,
- PCI_DMA_TODEVICE);
- lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]);
- wmb(); /* Make sure owner changes after all others are visible */
- lp->tx_ring[x].status = cpu_to_le16(status);
- }
-
- x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */
- a->write_bcr(ioaddr, 32, x | 0x0002);
-
- /* set int loopback in CSR15 */
- x = a->read_csr(ioaddr, CSR15) & 0xfffc;
- lp->a.write_csr(ioaddr, CSR15, x | 0x0044);
-
- teststatus = cpu_to_le16(0x8000);
- lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */
-
- /* Check status of descriptors */
- for (x = 0; x < numbuffs; x++) {
- ticks = 0;
- rmb();
- while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) {
- spin_unlock_irqrestore(&lp->lock, flags);
- msleep(1);
- spin_lock_irqsave(&lp->lock, flags);
- rmb();
- ticks++;
- }
- if (ticks == 200) {
- netif_err(lp, hw, dev, "Desc %d failed to reset!\n", x);
- break;
- }
- }
-
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
- wmb();
- if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) {
- netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n");
-
- for (x = 0; x < numbuffs; x++) {
- netdev_printk(KERN_DEBUG, dev, "Packet %d: ", x);
- skb = lp->rx_skbuff[x];
- for (i = 0; i < size; i++)
- pr_cont(" %02x", *(skb->data + i));
- pr_cont("\n");
- }
- }
-
- x = 0;
- rc = 0;
- while (x < numbuffs && !rc) {
- skb = lp->rx_skbuff[x];
- packet = lp->tx_skbuff[x]->data;
- for (i = 0; i < size; i++) {
- if (*(skb->data + i) != packet[i]) {
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Error in compare! %2x - %02x %02x\n",
- i, *(skb->data + i), packet[i]);
- rc = 1;
- break;
- }
- }
- x++;
- }
-
-clean_up:
- *data1 = rc;
- pcnet32_purge_tx_ring(dev);
-
- x = a->read_csr(ioaddr, CSR15);
- a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */
-
- x = a->read_bcr(ioaddr, 32); /* reset internal loopback */
- a->write_bcr(ioaddr, 32, (x & ~0x0002));
-
- if (netif_running(dev)) {
- pcnet32_netif_start(dev);
- pcnet32_restart(dev, CSR0_NORMAL);
- } else {
- pcnet32_purge_rx_ring(dev);
- lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */
- }
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return rc;
-} /* end pcnet32_loopback_test */
-
-static int pcnet32_set_phys_id(struct net_device *dev,
- enum ethtool_phys_id_state state)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- struct pcnet32_access *a = &lp->a;
- ulong ioaddr = dev->base_addr;
- unsigned long flags;
- int i;
-
- switch (state) {
- case ETHTOOL_ID_ACTIVE:
- /* Save the current value of the bcrs */
- spin_lock_irqsave(&lp->lock, flags);
- for (i = 4; i < 8; i++)
- lp->save_regs[i - 4] = a->read_bcr(ioaddr, i);
- spin_unlock_irqrestore(&lp->lock, flags);
- return 2; /* cycle on/off twice per second */
-
- case ETHTOOL_ID_ON:
- case ETHTOOL_ID_OFF:
- /* Blink the led */
- spin_lock_irqsave(&lp->lock, flags);
- for (i = 4; i < 8; i++)
- a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000);
- spin_unlock_irqrestore(&lp->lock, flags);
- break;
-
- case ETHTOOL_ID_INACTIVE:
- /* Restore the original value of the bcrs */
- spin_lock_irqsave(&lp->lock, flags);
- for (i = 4; i < 8; i++)
- a->write_bcr(ioaddr, i, lp->save_regs[i - 4]);
- spin_unlock_irqrestore(&lp->lock, flags);
- }
- return 0;
-}
-
-/*
- * lp->lock must be held.
- */
-static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
- int can_sleep)
-{
- int csr5;
- struct pcnet32_private *lp = netdev_priv(dev);
- struct pcnet32_access *a = &lp->a;
- ulong ioaddr = dev->base_addr;
- int ticks;
-
- /* really old chips have to be stopped. */
- if (lp->chip_version < PCNET32_79C970A)
- return 0;
-
- /* set SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = a->read_csr(ioaddr, CSR5);
- a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
-
- /* poll waiting for bit to be set */
- ticks = 0;
- while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
- spin_unlock_irqrestore(&lp->lock, *flags);
- if (can_sleep)
- msleep(1);
- else
- mdelay(1);
- spin_lock_irqsave(&lp->lock, *flags);
- ticks++;
- if (ticks > 200) {
- netif_printk(lp, hw, KERN_DEBUG, dev,
- "Error getting into suspend!\n");
- return 0;
- }
- }
- return 1;
-}
-
-/*
- * process one receive descriptor entry
- */
-
-static void pcnet32_rx_entry(struct net_device *dev,
- struct pcnet32_private *lp,
- struct pcnet32_rx_head *rxp,
- int entry)
-{
- int status = (short)le16_to_cpu(rxp->status) >> 8;
- int rx_in_place = 0;
- struct sk_buff *skb;
- short pkt_len;
-
- if (status != 0x03) { /* There was an error. */
- /*
- * There is a tricky error noted by John Murphy,
- * <murf@perftech.com> to Russ Nelson: Even with full-sized
- * buffers it's possible for a jabber packet to use two
- * buffers, with only the last correctly noting the error.
- */
- if (status & 0x01) /* Only count a general error at the */
- dev->stats.rx_errors++; /* end of a packet. */
- if (status & 0x20)
- dev->stats.rx_frame_errors++;
- if (status & 0x10)
- dev->stats.rx_over_errors++;
- if (status & 0x08)
- dev->stats.rx_crc_errors++;
- if (status & 0x04)
- dev->stats.rx_fifo_errors++;
- return;
- }
-
- pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4;
-
- /* Discard oversize frames. */
- if (unlikely(pkt_len > PKT_BUF_SIZE)) {
- netif_err(lp, drv, dev, "Impossible packet size %d!\n",
- pkt_len);
- dev->stats.rx_errors++;
- return;
- }
- if (pkt_len < 60) {
- netif_err(lp, rx_err, dev, "Runt packet!\n");
- dev->stats.rx_errors++;
- return;
- }
-
- if (pkt_len > rx_copybreak) {
- struct sk_buff *newskb;
-
- newskb = dev_alloc_skb(PKT_BUF_SKB);
- if (newskb) {
- skb_reserve(newskb, NET_IP_ALIGN);
- skb = lp->rx_skbuff[entry];
- pci_unmap_single(lp->pci_dev,
- lp->rx_dma_addr[entry],
- PKT_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- skb_put(skb, pkt_len);
- lp->rx_skbuff[entry] = newskb;
- lp->rx_dma_addr[entry] =
- pci_map_single(lp->pci_dev,
- newskb->data,
- PKT_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]);
- rx_in_place = 1;
- } else
- skb = NULL;
- } else
- skb = dev_alloc_skb(pkt_len + NET_IP_ALIGN);
-
- if (skb == NULL) {
- netif_err(lp, drv, dev, "Memory squeeze, dropping packet\n");
- dev->stats.rx_dropped++;
- return;
- }
- if (!rx_in_place) {
- skb_reserve(skb, NET_IP_ALIGN);
- skb_put(skb, pkt_len); /* Make room */
- pci_dma_sync_single_for_cpu(lp->pci_dev,
- lp->rx_dma_addr[entry],
- pkt_len,
- PCI_DMA_FROMDEVICE);
- skb_copy_to_linear_data(skb,
- (unsigned char *)(lp->rx_skbuff[entry]->data),
- pkt_len);
- pci_dma_sync_single_for_device(lp->pci_dev,
- lp->rx_dma_addr[entry],
- pkt_len,
- PCI_DMA_FROMDEVICE);
- }
- dev->stats.rx_bytes += skb->len;
- skb->protocol = eth_type_trans(skb, dev);
- netif_receive_skb(skb);
- dev->stats.rx_packets++;
-}
-
-static int pcnet32_rx(struct net_device *dev, int budget)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int entry = lp->cur_rx & lp->rx_mod_mask;
- struct pcnet32_rx_head *rxp = &lp->rx_ring[entry];
- int npackets = 0;
-
- /* If we own the next entry, it's a new packet. Send it up. */
- while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) {
- pcnet32_rx_entry(dev, lp, rxp, entry);
- npackets += 1;
- /*
- * The docs say that the buffer length isn't touched, but Andrew
- * Boyd of QNX reports that some revs of the 79C965 clear it.
- */
- rxp->buf_length = cpu_to_le16(NEG_BUF_SIZE);
- wmb(); /* Make sure owner changes after others are visible */
- rxp->status = cpu_to_le16(0x8000);
- entry = (++lp->cur_rx) & lp->rx_mod_mask;
- rxp = &lp->rx_ring[entry];
- }
-
- return npackets;
-}
-
-static int pcnet32_tx(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned int dirty_tx = lp->dirty_tx;
- int delta;
- int must_restart = 0;
-
- while (dirty_tx != lp->cur_tx) {
- int entry = dirty_tx & lp->tx_mod_mask;
- int status = (short)le16_to_cpu(lp->tx_ring[entry].status);
-
- if (status < 0)
- break; /* It still hasn't been Txed */
-
- lp->tx_ring[entry].base = 0;
-
- if (status & 0x4000) {
- /* There was a major error, log it. */
- int err_status = le32_to_cpu(lp->tx_ring[entry].misc);
- dev->stats.tx_errors++;
- netif_err(lp, tx_err, dev,
- "Tx error status=%04x err_status=%08x\n",
- status, err_status);
- if (err_status & 0x04000000)
- dev->stats.tx_aborted_errors++;
- if (err_status & 0x08000000)
- dev->stats.tx_carrier_errors++;
- if (err_status & 0x10000000)
- dev->stats.tx_window_errors++;
-#ifndef DO_DXSUFLO
- if (err_status & 0x40000000) {
- dev->stats.tx_fifo_errors++;
- /* Ackk! On FIFO errors the Tx unit is turned off! */
- /* Remove this verbosity later! */
- netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
- must_restart = 1;
- }
-#else
- if (err_status & 0x40000000) {
- dev->stats.tx_fifo_errors++;
- if (!lp->dxsuflo) { /* If controller doesn't recover ... */
- /* Ackk! On FIFO errors the Tx unit is turned off! */
- /* Remove this verbosity later! */
- netif_err(lp, tx_err, dev, "Tx FIFO error!\n");
- must_restart = 1;
- }
- }
-#endif
- } else {
- if (status & 0x1800)
- dev->stats.collisions++;
- dev->stats.tx_packets++;
- }
-
- /* We must free the original skb */
- if (lp->tx_skbuff[entry]) {
- pci_unmap_single(lp->pci_dev,
- lp->tx_dma_addr[entry],
- lp->tx_skbuff[entry]->
- len, PCI_DMA_TODEVICE);
- dev_kfree_skb_any(lp->tx_skbuff[entry]);
- lp->tx_skbuff[entry] = NULL;
- lp->tx_dma_addr[entry] = 0;
- }
- dirty_tx++;
- }
-
- delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size);
- if (delta > lp->tx_ring_size) {
- netif_err(lp, drv, dev, "out-of-sync dirty pointer, %d vs. %d, full=%d\n",
- dirty_tx, lp->cur_tx, lp->tx_full);
- dirty_tx += lp->tx_ring_size;
- delta -= lp->tx_ring_size;
- }
-
- if (lp->tx_full &&
- netif_queue_stopped(dev) &&
- delta < lp->tx_ring_size - 2) {
- /* The ring is no longer full, clear tbusy. */
- lp->tx_full = 0;
- netif_wake_queue(dev);
- }
- lp->dirty_tx = dirty_tx;
-
- return must_restart;
-}
-
-static int pcnet32_poll(struct napi_struct *napi, int budget)
-{
- struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi);
- struct net_device *dev = lp->dev;
- unsigned long ioaddr = dev->base_addr;
- unsigned long flags;
- int work_done;
- u16 val;
-
- work_done = pcnet32_rx(dev, budget);
-
- spin_lock_irqsave(&lp->lock, flags);
- if (pcnet32_tx(dev)) {
- /* reset the chip to clear the error condition, then restart */
- lp->a.reset(ioaddr);
- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
- pcnet32_restart(dev, CSR0_START);
- netif_wake_queue(dev);
- }
- spin_unlock_irqrestore(&lp->lock, flags);
-
- if (work_done < budget) {
- spin_lock_irqsave(&lp->lock, flags);
-
- __napi_complete(napi);
-
- /* clear interrupt masks */
- val = lp->a.read_csr(ioaddr, CSR3);
- val &= 0x00ff;
- lp->a.write_csr(ioaddr, CSR3, val);
-
- /* Set interrupt enable. */
- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
-
- spin_unlock_irqrestore(&lp->lock, flags);
- }
- return work_done;
-}
-
-#define PCNET32_REGS_PER_PHY 32
-#define PCNET32_MAX_PHYS 32
-static int pcnet32_get_regs_len(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int j = lp->phycount * PCNET32_REGS_PER_PHY;
-
- return (PCNET32_NUM_REGS + j) * sizeof(u16);
-}
-
-static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *ptr)
-{
- int i, csr0;
- u16 *buff = ptr;
- struct pcnet32_private *lp = netdev_priv(dev);
- struct pcnet32_access *a = &lp->a;
- ulong ioaddr = dev->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
-
- csr0 = a->read_csr(ioaddr, CSR0);
- if (!(csr0 & CSR0_STOP)) /* If not stopped */
- pcnet32_suspend(dev, &flags, 1);
-
- /* read address PROM */
- for (i = 0; i < 16; i += 2)
- *buff++ = inw(ioaddr + i);
-
- /* read control and status registers */
- for (i = 0; i < 90; i++)
- *buff++ = a->read_csr(ioaddr, i);
-
- *buff++ = a->read_csr(ioaddr, 112);
- *buff++ = a->read_csr(ioaddr, 114);
-
- /* read bus configuration registers */
- for (i = 0; i < 30; i++)
- *buff++ = a->read_bcr(ioaddr, i);
-
- *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */
-
- for (i = 31; i < 36; i++)
- *buff++ = a->read_bcr(ioaddr, i);
-
- /* read mii phy registers */
- if (lp->mii) {
- int j;
- for (j = 0; j < PCNET32_MAX_PHYS; j++) {
- if (lp->phymask & (1 << j)) {
- for (i = 0; i < PCNET32_REGS_PER_PHY; i++) {
- lp->a.write_bcr(ioaddr, 33,
- (j << 5) | i);
- *buff++ = lp->a.read_bcr(ioaddr, 34);
- }
- }
- }
- }
-
- if (!(csr0 & CSR0_STOP)) { /* If not stopped */
- int csr5;
-
- /* clear SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = a->read_csr(ioaddr, CSR5);
- a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
- }
-
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-static const struct ethtool_ops pcnet32_ethtool_ops = {
- .get_settings = pcnet32_get_settings,
- .set_settings = pcnet32_set_settings,
- .get_drvinfo = pcnet32_get_drvinfo,
- .get_msglevel = pcnet32_get_msglevel,
- .set_msglevel = pcnet32_set_msglevel,
- .nway_reset = pcnet32_nway_reset,
- .get_link = pcnet32_get_link,
- .get_ringparam = pcnet32_get_ringparam,
- .set_ringparam = pcnet32_set_ringparam,
- .get_strings = pcnet32_get_strings,
- .self_test = pcnet32_ethtool_test,
- .set_phys_id = pcnet32_set_phys_id,
- .get_regs_len = pcnet32_get_regs_len,
- .get_regs = pcnet32_get_regs,
- .get_sset_count = pcnet32_get_sset_count,
-};
-
-/* only probes for non-PCI devices, the rest are handled by
- * pci_register_driver via pcnet32_probe_pci */
-
-static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist)
-{
- unsigned int *port, ioaddr;
-
- /* search for PCnet32 VLB cards at known addresses */
- for (port = pcnet32_portlist; (ioaddr = *port); port++) {
- if (request_region
- (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) {
- /* check if there is really a pcnet chip on that ioaddr */
- if ((inb(ioaddr + 14) == 0x57) &&
- (inb(ioaddr + 15) == 0x57)) {
- pcnet32_probe1(ioaddr, 0, NULL);
- } else {
- release_region(ioaddr, PCNET32_TOTAL_SIZE);
- }
- }
- }
-}
-
-static int __devinit
-pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- unsigned long ioaddr;
- int err;
-
- err = pci_enable_device(pdev);
- if (err < 0) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("failed to enable device -- err=%d\n", err);
- return err;
- }
- pci_set_master(pdev);
-
- ioaddr = pci_resource_start(pdev, 0);
- if (!ioaddr) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("card has no PCI IO resources, aborting\n");
- return -ENODEV;
- }
-
- if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("architecture does not support 32bit PCI busmaster DMA\n");
- return -ENODEV;
- }
- if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("io address range already allocated\n");
- return -EBUSY;
- }
-
- err = pcnet32_probe1(ioaddr, 1, pdev);
- if (err < 0)
- pci_disable_device(pdev);
-
- return err;
-}
-
-static const struct net_device_ops pcnet32_netdev_ops = {
- .ndo_open = pcnet32_open,
- .ndo_stop = pcnet32_close,
- .ndo_start_xmit = pcnet32_start_xmit,
- .ndo_tx_timeout = pcnet32_tx_timeout,
- .ndo_get_stats = pcnet32_get_stats,
- .ndo_set_multicast_list = pcnet32_set_multicast_list,
- .ndo_do_ioctl = pcnet32_ioctl,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = pcnet32_poll_controller,
-#endif
-};
-
-/* pcnet32_probe1
- * Called from both pcnet32_probe_vlbus and pcnet_probe_pci.
- * pdev will be NULL when called from pcnet32_probe_vlbus.
- */
-static int __devinit
-pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
-{
- struct pcnet32_private *lp;
- int i, media;
- int fdx, mii, fset, dxsuflo;
- int chip_version;
- char *chipname;
- struct net_device *dev;
- struct pcnet32_access *a = NULL;
- u8 promaddr[6];
- int ret = -ENODEV;
-
- /* reset the chip */
- pcnet32_wio_reset(ioaddr);
-
- /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */
- if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) {
- a = &pcnet32_wio;
- } else {
- pcnet32_dwio_reset(ioaddr);
- if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 &&
- pcnet32_dwio_check(ioaddr)) {
- a = &pcnet32_dwio;
- } else {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("No access methods\n");
- goto err_release_region;
- }
- }
-
- chip_version =
- a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16);
- if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW))
- pr_info(" PCnet chip version is %#x\n", chip_version);
- if ((chip_version & 0xfff) != 0x003) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_info("Unsupported chip version\n");
- goto err_release_region;
- }
-
- /* initialize variables */
- fdx = mii = fset = dxsuflo = 0;
- chip_version = (chip_version >> 12) & 0xffff;
-
- switch (chip_version) {
- case 0x2420:
- chipname = "PCnet/PCI 79C970"; /* PCI */
- break;
- case 0x2430:
- if (shared)
- chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */
- else
- chipname = "PCnet/32 79C965"; /* 486/VL bus */
- break;
- case 0x2621:
- chipname = "PCnet/PCI II 79C970A"; /* PCI */
- fdx = 1;
- break;
- case 0x2623:
- chipname = "PCnet/FAST 79C971"; /* PCI */
- fdx = 1;
- mii = 1;
- fset = 1;
- break;
- case 0x2624:
- chipname = "PCnet/FAST+ 79C972"; /* PCI */
- fdx = 1;
- mii = 1;
- fset = 1;
- break;
- case 0x2625:
- chipname = "PCnet/FAST III 79C973"; /* PCI */
- fdx = 1;
- mii = 1;
- break;
- case 0x2626:
- chipname = "PCnet/Home 79C978"; /* PCI */
- fdx = 1;
- /*
- * This is based on specs published at www.amd.com. This section
- * assumes that a card with a 79C978 wants to go into standard
- * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
- * and the module option homepna=1 can select this instead.
- */
- media = a->read_bcr(ioaddr, 49);
- media &= ~3; /* default to 10Mb ethernet */
- if (cards_found < MAX_UNITS && homepna[cards_found])
- media |= 1; /* switch to home wiring mode */
- if (pcnet32_debug & NETIF_MSG_PROBE)
- printk(KERN_DEBUG PFX "media set to %sMbit mode\n",
- (media & 1) ? "1" : "10");
- a->write_bcr(ioaddr, 49, media);
- break;
- case 0x2627:
- chipname = "PCnet/FAST III 79C975"; /* PCI */
- fdx = 1;
- mii = 1;
- break;
- case 0x2628:
- chipname = "PCnet/PRO 79C976";
- fdx = 1;
- mii = 1;
- break;
- default:
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_info("PCnet version %#x, no PCnet32 chip\n",
- chip_version);
- goto err_release_region;
- }
-
- /*
- * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
- * starting until the packet is loaded. Strike one for reliability, lose
- * one for latency - although on PCI this isn't a big loss. Older chips
- * have FIFO's smaller than a packet, so you can't do this.
- * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
- */
-
- if (fset) {
- a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860));
- a->write_csr(ioaddr, 80,
- (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00);
- dxsuflo = 1;
- }
-
- dev = alloc_etherdev(sizeof(*lp));
- if (!dev) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("Memory allocation failed\n");
- ret = -ENOMEM;
- goto err_release_region;
- }
-
- if (pdev)
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_info("%s at %#3lx,", chipname, ioaddr);
-
- /* In most chips, after a chip reset, the ethernet address is read from the
- * station address PROM at the base address and programmed into the
- * "Physical Address Registers" CSR12-14.
- * As a precautionary measure, we read the PROM values and complain if
- * they disagree with the CSRs. If they miscompare, and the PROM addr
- * is valid, then the PROM addr is used.
- */
- for (i = 0; i < 3; i++) {
- unsigned int val;
- val = a->read_csr(ioaddr, i + 12) & 0x0ffff;
- /* There may be endianness issues here. */
- dev->dev_addr[2 * i] = val & 0x0ff;
- dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff;
- }
-
- /* read PROM address and compare with CSR address */
- for (i = 0; i < 6; i++)
- promaddr[i] = inb(ioaddr + i);
-
- if (memcmp(promaddr, dev->dev_addr, 6) ||
- !is_valid_ether_addr(dev->dev_addr)) {
- if (is_valid_ether_addr(promaddr)) {
- if (pcnet32_debug & NETIF_MSG_PROBE) {
- pr_cont(" warning: CSR address invalid,\n");
- pr_info(" using instead PROM address of");
- }
- memcpy(dev->dev_addr, promaddr, 6);
- }
- }
- memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-
- /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
- if (!is_valid_ether_addr(dev->perm_addr))
- memset(dev->dev_addr, 0, ETH_ALEN);
-
- if (pcnet32_debug & NETIF_MSG_PROBE) {
- pr_cont(" %pM", dev->dev_addr);
-
- /* Version 0x2623 and 0x2624 */
- if (((chip_version + 1) & 0xfffe) == 0x2624) {
- i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */
- pr_info(" tx_start_pt(0x%04x):", i);
- switch (i >> 10) {
- case 0:
- pr_cont(" 20 bytes,");
- break;
- case 1:
- pr_cont(" 64 bytes,");
- break;
- case 2:
- pr_cont(" 128 bytes,");
- break;
- case 3:
- pr_cont("~220 bytes,");
- break;
- }
- i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */
- pr_cont(" BCR18(%x):", i & 0xffff);
- if (i & (1 << 5))
- pr_cont("BurstWrEn ");
- if (i & (1 << 6))
- pr_cont("BurstRdEn ");
- if (i & (1 << 7))
- pr_cont("DWordIO ");
- if (i & (1 << 11))
- pr_cont("NoUFlow ");
- i = a->read_bcr(ioaddr, 25);
- pr_info(" SRAMSIZE=0x%04x,", i << 8);
- i = a->read_bcr(ioaddr, 26);
- pr_cont(" SRAM_BND=0x%04x,", i << 8);
- i = a->read_bcr(ioaddr, 27);
- if (i & (1 << 14))
- pr_cont("LowLatRx");
- }
- }
-
- dev->base_addr = ioaddr;
- lp = netdev_priv(dev);
- /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */
- lp->init_block = pci_alloc_consistent(pdev, sizeof(*lp->init_block),
- &lp->init_dma_addr);
- if (!lp->init_block) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_err("Consistent memory allocation failed\n");
- ret = -ENOMEM;
- goto err_free_netdev;
- }
- lp->pci_dev = pdev;
-
- lp->dev = dev;
-
- spin_lock_init(&lp->lock);
-
- lp->name = chipname;
- lp->shared_irq = shared;
- lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */
- lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */
- lp->tx_mod_mask = lp->tx_ring_size - 1;
- lp->rx_mod_mask = lp->rx_ring_size - 1;
- lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12);
- lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4);
- lp->mii_if.full_duplex = fdx;
- lp->mii_if.phy_id_mask = 0x1f;
- lp->mii_if.reg_num_mask = 0x1f;
- lp->dxsuflo = dxsuflo;
- lp->mii = mii;
- lp->chip_version = chip_version;
- lp->msg_enable = pcnet32_debug;
- if ((cards_found >= MAX_UNITS) ||
- (options[cards_found] >= sizeof(options_mapping)))
- lp->options = PCNET32_PORT_ASEL;
- else
- lp->options = options_mapping[options[cards_found]];
- lp->mii_if.dev = dev;
- lp->mii_if.mdio_read = mdio_read;
- lp->mii_if.mdio_write = mdio_write;
-
- /* napi.weight is used in both the napi and non-napi cases */
- lp->napi.weight = lp->rx_ring_size / 2;
-
- netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2);
-
- if (fdx && !(lp->options & PCNET32_PORT_ASEL) &&
- ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
- lp->options |= PCNET32_PORT_FD;
-
- lp->a = *a;
-
- /* prior to register_netdev, dev->name is not yet correct */
- if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) {
- ret = -ENOMEM;
- goto err_free_ring;
- }
- /* detect special T1/E1 WAN card by checking for MAC address */
- if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 &&
- dev->dev_addr[2] == 0x75)
- lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI;
-
- lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */
- lp->init_block->tlen_rlen =
- cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
- for (i = 0; i < 6; i++)
- lp->init_block->phys_addr[i] = dev->dev_addr[i];
- lp->init_block->filter[0] = 0x00000000;
- lp->init_block->filter[1] = 0x00000000;
- lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
- lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
-
- /* switch pcnet32 to 32bit mode */
- a->write_bcr(ioaddr, 20, 2);
-
- a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
- a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
-
- if (pdev) { /* use the IRQ provided by PCI */
- dev->irq = pdev->irq;
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_cont(" assigned IRQ %d\n", dev->irq);
- } else {
- unsigned long irq_mask = probe_irq_on();
-
- /*
- * To auto-IRQ we enable the initialization-done and DMA error
- * interrupts. For ISA boards we get a DMA error, but VLB and PCI
- * boards will work.
- */
- /* Trigger an initialization just for the interrupt. */
- a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT);
- mdelay(1);
-
- dev->irq = probe_irq_off(irq_mask);
- if (!dev->irq) {
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_cont(", failed to detect IRQ line\n");
- ret = -ENODEV;
- goto err_free_ring;
- }
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_cont(", probed IRQ %d\n", dev->irq);
- }
-
- /* Set the mii phy_id so that we can query the link state */
- if (lp->mii) {
- /* lp->phycount and lp->phymask are set to 0 by memset above */
-
- lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f;
- /* scan for PHYs */
- for (i = 0; i < PCNET32_MAX_PHYS; i++) {
- unsigned short id1, id2;
-
- id1 = mdio_read(dev, i, MII_PHYSID1);
- if (id1 == 0xffff)
- continue;
- id2 = mdio_read(dev, i, MII_PHYSID2);
- if (id2 == 0xffff)
- continue;
- if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624)
- continue; /* 79C971 & 79C972 have phantom phy at id 31 */
- lp->phycount++;
- lp->phymask |= (1 << i);
- lp->mii_if.phy_id = i;
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_info("Found PHY %04x:%04x at address %d\n",
- id1, id2, i);
- }
- lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5);
- if (lp->phycount > 1)
- lp->options |= PCNET32_PORT_MII;
- }
-
- init_timer(&lp->watchdog_timer);
- lp->watchdog_timer.data = (unsigned long)dev;
- lp->watchdog_timer.function = (void *)&pcnet32_watchdog;
-
- /* The PCNET32-specific entries in the device structure. */
- dev->netdev_ops = &pcnet32_netdev_ops;
- dev->ethtool_ops = &pcnet32_ethtool_ops;
- dev->watchdog_timeo = (5 * HZ);
-
- /* Fill in the generic fields of the device structure. */
- if (register_netdev(dev))
- goto err_free_ring;
-
- if (pdev) {
- pci_set_drvdata(pdev, dev);
- } else {
- lp->next = pcnet32_dev;
- pcnet32_dev = dev;
- }
-
- if (pcnet32_debug & NETIF_MSG_PROBE)
- pr_info("%s: registered as %s\n", dev->name, lp->name);
- cards_found++;
-
- /* enable LED writes */
- a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000);
-
- return 0;
-
-err_free_ring:
- pcnet32_free_ring(dev);
- pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
- lp->init_block, lp->init_dma_addr);
-err_free_netdev:
- free_netdev(dev);
-err_release_region:
- release_region(ioaddr, PCNET32_TOTAL_SIZE);
- return ret;
-}
-
-/* if any allocation fails, caller must also call pcnet32_free_ring */
-static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
-
- lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
- sizeof(struct pcnet32_tx_head) *
- lp->tx_ring_size,
- &lp->tx_ring_dma_addr);
- if (lp->tx_ring == NULL) {
- netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
- return -ENOMEM;
- }
-
- lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
- sizeof(struct pcnet32_rx_head) *
- lp->rx_ring_size,
- &lp->rx_ring_dma_addr);
- if (lp->rx_ring == NULL) {
- netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
- return -ENOMEM;
- }
-
- lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
- GFP_ATOMIC);
- if (!lp->tx_dma_addr) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- return -ENOMEM;
- }
-
- lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
- GFP_ATOMIC);
- if (!lp->rx_dma_addr) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- return -ENOMEM;
- }
-
- lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
- GFP_ATOMIC);
- if (!lp->tx_skbuff) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- return -ENOMEM;
- }
-
- lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
- GFP_ATOMIC);
- if (!lp->rx_skbuff) {
- netif_err(lp, drv, dev, "Memory allocation failed\n");
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static void pcnet32_free_ring(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
-
- kfree(lp->tx_skbuff);
- lp->tx_skbuff = NULL;
-
- kfree(lp->rx_skbuff);
- lp->rx_skbuff = NULL;
-
- kfree(lp->tx_dma_addr);
- lp->tx_dma_addr = NULL;
-
- kfree(lp->rx_dma_addr);
- lp->rx_dma_addr = NULL;
-
- if (lp->tx_ring) {
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_tx_head) *
- lp->tx_ring_size, lp->tx_ring,
- lp->tx_ring_dma_addr);
- lp->tx_ring = NULL;
- }
-
- if (lp->rx_ring) {
- pci_free_consistent(lp->pci_dev,
- sizeof(struct pcnet32_rx_head) *
- lp->rx_ring_size, lp->rx_ring,
- lp->rx_ring_dma_addr);
- lp->rx_ring = NULL;
- }
-}
-
-static int pcnet32_open(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- struct pci_dev *pdev = lp->pci_dev;
- unsigned long ioaddr = dev->base_addr;
- u16 val;
- int i;
- int rc;
- unsigned long flags;
-
- if (request_irq(dev->irq, pcnet32_interrupt,
- lp->shared_irq ? IRQF_SHARED : 0, dev->name,
- (void *)dev)) {
- return -EAGAIN;
- }
-
- spin_lock_irqsave(&lp->lock, flags);
- /* Check for a valid station address */
- if (!is_valid_ether_addr(dev->dev_addr)) {
- rc = -EINVAL;
- goto err_free_irq;
- }
-
- /* Reset the PCNET32 */
- lp->a.reset(ioaddr);
-
- /* switch pcnet32 to 32bit mode */
- lp->a.write_bcr(ioaddr, 20, 2);
-
- netif_printk(lp, ifup, KERN_DEBUG, dev,
- "%s() irq %d tx/rx rings %#x/%#x init %#x\n",
- __func__, dev->irq, (u32) (lp->tx_ring_dma_addr),
- (u32) (lp->rx_ring_dma_addr),
- (u32) (lp->init_dma_addr));
-
- /* set/reset autoselect bit */
- val = lp->a.read_bcr(ioaddr, 2) & ~2;
- if (lp->options & PCNET32_PORT_ASEL)
- val |= 2;
- lp->a.write_bcr(ioaddr, 2, val);
-
- /* handle full duplex setting */
- if (lp->mii_if.full_duplex) {
- val = lp->a.read_bcr(ioaddr, 9) & ~3;
- if (lp->options & PCNET32_PORT_FD) {
- val |= 1;
- if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI))
- val |= 2;
- } else if (lp->options & PCNET32_PORT_ASEL) {
- /* workaround of xSeries250, turn on for 79C975 only */
- if (lp->chip_version == 0x2627)
- val |= 3;
- }
- lp->a.write_bcr(ioaddr, 9, val);
- }
-
- /* set/reset GPSI bit in test register */
- val = lp->a.read_csr(ioaddr, 124) & ~0x10;
- if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI)
- val |= 0x10;
- lp->a.write_csr(ioaddr, 124, val);
-
- /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
- if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT &&
- (pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
- pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
- if (lp->options & PCNET32_PORT_ASEL) {
- lp->options = PCNET32_PORT_FD | PCNET32_PORT_100;
- netif_printk(lp, link, KERN_DEBUG, dev,
- "Setting 100Mb-Full Duplex\n");
- }
- }
- if (lp->phycount < 2) {
- /*
- * 24 Jun 2004 according AMD, in order to change the PHY,
- * DANAS (or DISPM for 79C976) must be set; then select the speed,
- * duplex, and/or enable auto negotiation, and clear DANAS
- */
- if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) {
- lp->a.write_bcr(ioaddr, 32,
- lp->a.read_bcr(ioaddr, 32) | 0x0080);
- /* disable Auto Negotiation, set 10Mpbs, HD */
- val = lp->a.read_bcr(ioaddr, 32) & ~0xb8;
- if (lp->options & PCNET32_PORT_FD)
- val |= 0x10;
- if (lp->options & PCNET32_PORT_100)
- val |= 0x08;
- lp->a.write_bcr(ioaddr, 32, val);
- } else {
- if (lp->options & PCNET32_PORT_ASEL) {
- lp->a.write_bcr(ioaddr, 32,
- lp->a.read_bcr(ioaddr,
- 32) | 0x0080);
- /* enable auto negotiate, setup, disable fd */
- val = lp->a.read_bcr(ioaddr, 32) & ~0x98;
- val |= 0x20;
- lp->a.write_bcr(ioaddr, 32, val);
- }
- }
- } else {
- int first_phy = -1;
- u16 bmcr;
- u32 bcr9;
- struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
-
- /*
- * There is really no good other way to handle multiple PHYs
- * other than turning off all automatics
- */
- val = lp->a.read_bcr(ioaddr, 2);
- lp->a.write_bcr(ioaddr, 2, val & ~2);
- val = lp->a.read_bcr(ioaddr, 32);
- lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */
-
- if (!(lp->options & PCNET32_PORT_ASEL)) {
- /* setup ecmd */
- ecmd.port = PORT_MII;
- ecmd.transceiver = XCVR_INTERNAL;
- ecmd.autoneg = AUTONEG_DISABLE;
- ethtool_cmd_speed_set(&ecmd,
- (lp->options & PCNET32_PORT_100) ?
- SPEED_100 : SPEED_10);
- bcr9 = lp->a.read_bcr(ioaddr, 9);
-
- if (lp->options & PCNET32_PORT_FD) {
- ecmd.duplex = DUPLEX_FULL;
- bcr9 |= (1 << 0);
- } else {
- ecmd.duplex = DUPLEX_HALF;
- bcr9 |= ~(1 << 0);
- }
- lp->a.write_bcr(ioaddr, 9, bcr9);
- }
-
- for (i = 0; i < PCNET32_MAX_PHYS; i++) {
- if (lp->phymask & (1 << i)) {
- /* isolate all but the first PHY */
- bmcr = mdio_read(dev, i, MII_BMCR);
- if (first_phy == -1) {
- first_phy = i;
- mdio_write(dev, i, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
- } else {
- mdio_write(dev, i, MII_BMCR,
- bmcr | BMCR_ISOLATE);
- }
- /* use mii_ethtool_sset to setup PHY */
- lp->mii_if.phy_id = i;
- ecmd.phy_address = i;
- if (lp->options & PCNET32_PORT_ASEL) {
- mii_ethtool_gset(&lp->mii_if, &ecmd);
- ecmd.autoneg = AUTONEG_ENABLE;
- }
- mii_ethtool_sset(&lp->mii_if, &ecmd);
- }
- }
- lp->mii_if.phy_id = first_phy;
- netif_info(lp, link, dev, "Using PHY number %d\n", first_phy);
- }
-
-#ifdef DO_DXSUFLO
- if (lp->dxsuflo) { /* Disable transmit stop on underflow */
- val = lp->a.read_csr(ioaddr, CSR3);
- val |= 0x40;
- lp->a.write_csr(ioaddr, CSR3, val);
- }
-#endif
-
- lp->init_block->mode =
- cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
- pcnet32_load_multicast(dev);
-
- if (pcnet32_init_ring(dev)) {
- rc = -ENOMEM;
- goto err_free_ring;
- }
-
- napi_enable(&lp->napi);
-
- /* Re-initialize the PCNET32, and start it when done. */
- lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
- lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
-
- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
-
- netif_start_queue(dev);
-
- if (lp->chip_version >= PCNET32_79C970A) {
- /* Print the link status and start the watchdog */
- pcnet32_check_media(dev, 1);
- mod_timer(&lp->watchdog_timer, PCNET32_WATCHDOG_TIMEOUT);
- }
-
- i = 0;
- while (i++ < 100)
- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
- break;
- /*
- * We used to clear the InitDone bit, 0x0100, here but Mark Stockton
- * reports that doing so triggers a bug in the '974.
- */
- lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL);
-
- netif_printk(lp, ifup, KERN_DEBUG, dev,
- "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n",
- i,
- (u32) (lp->init_dma_addr),
- lp->a.read_csr(ioaddr, CSR0));
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return 0; /* Always succeed */
-
-err_free_ring:
- /* free any allocated skbuffs */
- pcnet32_purge_rx_ring(dev);
-
- /*
- * Switch back to 16bit mode to avoid problems with dumb
- * DOS packet driver after a warm reboot
- */
- lp->a.write_bcr(ioaddr, 20, 4);
-
-err_free_irq:
- spin_unlock_irqrestore(&lp->lock, flags);
- free_irq(dev->irq, dev);
- return rc;
-}
-
-/*
- * The LANCE has been halted for one reason or another (busmaster memory
- * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure,
- * etc.). Modern LANCE variants always reload their ring-buffer
- * configuration when restarted, so we must reinitialize our ring
- * context before restarting. As part of this reinitialization,
- * find all packets still on the Tx ring and pretend that they had been
- * sent (in effect, drop the packets on the floor) - the higher-level
- * protocols will time out and retransmit. It'd be better to shuffle
- * these skbs to a temp list and then actually re-Tx them after
- * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com
- */
-
-static void pcnet32_purge_tx_ring(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int i;
-
- for (i = 0; i < lp->tx_ring_size; i++) {
- lp->tx_ring[i].status = 0; /* CPU owns buffer */
- wmb(); /* Make sure adapter sees owner change */
- if (lp->tx_skbuff[i]) {
- pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i],
- lp->tx_skbuff[i]->len,
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(lp->tx_skbuff[i]);
- }
- lp->tx_skbuff[i] = NULL;
- lp->tx_dma_addr[i] = 0;
- }
-}
-
-/* Initialize the PCNET32 Rx and Tx rings. */
-static int pcnet32_init_ring(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int i;
-
- lp->tx_full = 0;
- lp->cur_rx = lp->cur_tx = 0;
- lp->dirty_rx = lp->dirty_tx = 0;
-
- for (i = 0; i < lp->rx_ring_size; i++) {
- struct sk_buff *rx_skbuff = lp->rx_skbuff[i];
- if (rx_skbuff == NULL) {
- lp->rx_skbuff[i] = dev_alloc_skb(PKT_BUF_SKB);
- rx_skbuff = lp->rx_skbuff[i];
- if (!rx_skbuff) {
- /* there is not much we can do at this point */
- netif_err(lp, drv, dev, "%s dev_alloc_skb failed\n",
- __func__);
- return -1;
- }
- skb_reserve(rx_skbuff, NET_IP_ALIGN);
- }
-
- rmb();
- if (lp->rx_dma_addr[i] == 0)
- lp->rx_dma_addr[i] =
- pci_map_single(lp->pci_dev, rx_skbuff->data,
- PKT_BUF_SIZE, PCI_DMA_FROMDEVICE);
- lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]);
- lp->rx_ring[i].buf_length = cpu_to_le16(NEG_BUF_SIZE);
- wmb(); /* Make sure owner changes after all others are visible */
- lp->rx_ring[i].status = cpu_to_le16(0x8000);
- }
- /* The Tx buffer address is filled in as needed, but we do need to clear
- * the upper ownership bit. */
- for (i = 0; i < lp->tx_ring_size; i++) {
- lp->tx_ring[i].status = 0; /* CPU owns buffer */
- wmb(); /* Make sure adapter sees owner change */
- lp->tx_ring[i].base = 0;
- lp->tx_dma_addr[i] = 0;
- }
-
- lp->init_block->tlen_rlen =
- cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits);
- for (i = 0; i < 6; i++)
- lp->init_block->phys_addr[i] = dev->dev_addr[i];
- lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr);
- lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr);
- wmb(); /* Make sure all changes are visible */
- return 0;
-}
-
-/* the pcnet32 has been issued a stop or reset. Wait for the stop bit
- * then flush the pending transmit operations, re-initialize the ring,
- * and tell the chip to initialize.
- */
-static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- int i;
-
- /* wait for stop */
- for (i = 0; i < 100; i++)
- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP)
- break;
-
- if (i >= 100)
- netif_err(lp, drv, dev, "%s timed out waiting for stop\n",
- __func__);
-
- pcnet32_purge_tx_ring(dev);
- if (pcnet32_init_ring(dev))
- return;
-
- /* ReInit Ring */
- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
- i = 0;
- while (i++ < 1000)
- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
- break;
-
- lp->a.write_csr(ioaddr, CSR0, csr0_bits);
-}
-
-static void pcnet32_tx_timeout(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr, flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- /* Transmitter timeout, serious problems. */
- if (pcnet32_debug & NETIF_MSG_DRV)
- pr_err("%s: transmit timed out, status %4.4x, resetting\n",
- dev->name, lp->a.read_csr(ioaddr, CSR0));
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
- dev->stats.tx_errors++;
- if (netif_msg_tx_err(lp)) {
- int i;
- printk(KERN_DEBUG
- " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.",
- lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "",
- lp->cur_rx);
- for (i = 0; i < lp->rx_ring_size; i++)
- printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
- le32_to_cpu(lp->rx_ring[i].base),
- (-le16_to_cpu(lp->rx_ring[i].buf_length)) &
- 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length),
- le16_to_cpu(lp->rx_ring[i].status));
- for (i = 0; i < lp->tx_ring_size; i++)
- printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
- le32_to_cpu(lp->tx_ring[i].base),
- (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff,
- le32_to_cpu(lp->tx_ring[i].misc),
- le16_to_cpu(lp->tx_ring[i].status));
- printk("\n");
- }
- pcnet32_restart(dev, CSR0_NORMAL);
-
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue(dev);
-
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-static netdev_tx_t pcnet32_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- u16 status;
- int entry;
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
-
- netif_printk(lp, tx_queued, KERN_DEBUG, dev,
- "%s() called, csr0 %4.4x\n",
- __func__, lp->a.read_csr(ioaddr, CSR0));
-
- /* Default status -- will not enable Successful-TxDone
- * interrupt when that option is available to us.
- */
- status = 0x8300;
-
- /* Fill in a Tx ring entry */
-
- /* Mask to ring buffer boundary. */
- entry = lp->cur_tx & lp->tx_mod_mask;
-
- /* Caution: the write order is important here, set the status
- * with the "ownership" bits last. */
-
- lp->tx_ring[entry].length = cpu_to_le16(-skb->len);
-
- lp->tx_ring[entry].misc = 0x00000000;
-
- lp->tx_skbuff[entry] = skb;
- lp->tx_dma_addr[entry] =
- pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
- lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]);
- wmb(); /* Make sure owner changes after all others are visible */
- lp->tx_ring[entry].status = cpu_to_le16(status);
-
- lp->cur_tx++;
- dev->stats.tx_bytes += skb->len;
-
- /* Trigger an immediate send poll. */
- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL);
-
- if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) {
- lp->tx_full = 1;
- netif_stop_queue(dev);
- }
- spin_unlock_irqrestore(&lp->lock, flags);
- return NETDEV_TX_OK;
-}
-
-/* The PCNET32 interrupt handler. */
-static irqreturn_t
-pcnet32_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct pcnet32_private *lp;
- unsigned long ioaddr;
- u16 csr0;
- int boguscnt = max_interrupt_work;
-
- ioaddr = dev->base_addr;
- lp = netdev_priv(dev);
-
- spin_lock(&lp->lock);
-
- csr0 = lp->a.read_csr(ioaddr, CSR0);
- while ((csr0 & 0x8f00) && --boguscnt >= 0) {
- if (csr0 == 0xffff)
- break; /* PCMCIA remove happened */
- /* Acknowledge all of the current interrupt sources ASAP. */
- lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f);
-
- netif_printk(lp, intr, KERN_DEBUG, dev,
- "interrupt csr0=%#2.2x new csr=%#2.2x\n",
- csr0, lp->a.read_csr(ioaddr, CSR0));
-
- /* Log misc errors. */
- if (csr0 & 0x4000)
- dev->stats.tx_errors++; /* Tx babble. */
- if (csr0 & 0x1000) {
- /*
- * This happens when our receive ring is full. This
- * shouldn't be a problem as we will see normal rx
- * interrupts for the frames in the receive ring. But
- * there are some PCI chipsets (I can reproduce this
- * on SP3G with Intel saturn chipset) which have
- * sometimes problems and will fill up the receive
- * ring with error descriptors. In this situation we
- * don't get a rx interrupt, but a missed frame
- * interrupt sooner or later.
- */
- dev->stats.rx_errors++; /* Missed a Rx frame. */
- }
- if (csr0 & 0x0800) {
- netif_err(lp, drv, dev, "Bus master arbitration failure, status %4.4x\n",
- csr0);
- /* unlike for the lance, there is no restart needed */
- }
- if (napi_schedule_prep(&lp->napi)) {
- u16 val;
- /* set interrupt masks */
- val = lp->a.read_csr(ioaddr, CSR3);
- val |= 0x5f00;
- lp->a.write_csr(ioaddr, CSR3, val);
-
- __napi_schedule(&lp->napi);
- break;
- }
- csr0 = lp->a.read_csr(ioaddr, CSR0);
- }
-
- netif_printk(lp, intr, KERN_DEBUG, dev,
- "exiting interrupt, csr0=%#4.4x\n",
- lp->a.read_csr(ioaddr, CSR0));
-
- spin_unlock(&lp->lock);
-
- return IRQ_HANDLED;
-}
-
-static int pcnet32_close(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr;
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
-
- del_timer_sync(&lp->watchdog_timer);
-
- netif_stop_queue(dev);
- napi_disable(&lp->napi);
-
- spin_lock_irqsave(&lp->lock, flags);
-
- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
-
- netif_printk(lp, ifdown, KERN_DEBUG, dev,
- "Shutting down ethercard, status was %2.2x\n",
- lp->a.read_csr(ioaddr, CSR0));
-
- /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
-
- /*
- * Switch back to 16bit mode to avoid problems with dumb
- * DOS packet driver after a warm reboot
- */
- lp->a.write_bcr(ioaddr, 20, 4);
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- free_irq(dev->irq, dev);
-
- spin_lock_irqsave(&lp->lock, flags);
-
- pcnet32_purge_rx_ring(dev);
- pcnet32_purge_tx_ring(dev);
-
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return 0;
-}
-
-static struct net_device_stats *pcnet32_get_stats(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return &dev->stats;
-}
-
-/* taken from the sunlance driver, which it took from the depca driver */
-static void pcnet32_load_multicast(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- volatile struct pcnet32_init_block *ib = lp->init_block;
- volatile __le16 *mcast_table = (__le16 *)ib->filter;
- struct netdev_hw_addr *ha;
- unsigned long ioaddr = dev->base_addr;
- int i;
- u32 crc;
-
- /* set all multicast bits */
- if (dev->flags & IFF_ALLMULTI) {
- ib->filter[0] = cpu_to_le32(~0U);
- ib->filter[1] = cpu_to_le32(~0U);
- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff);
- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff);
- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff);
- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff);
- return;
- }
- /* clear the multicast filter */
- ib->filter[0] = 0;
- ib->filter[1] = 0;
-
- /* Add addresses */
- netdev_for_each_mc_addr(ha, dev) {
- crc = ether_crc_le(6, ha->addr);
- crc = crc >> 26;
- mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf));
- }
- for (i = 0; i < 4; i++)
- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i,
- le16_to_cpu(mcast_table[i]));
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- */
-static void pcnet32_set_multicast_list(struct net_device *dev)
-{
- unsigned long ioaddr = dev->base_addr, flags;
- struct pcnet32_private *lp = netdev_priv(dev);
- int csr15, suspended;
-
- spin_lock_irqsave(&lp->lock, flags);
- suspended = pcnet32_suspend(dev, &flags, 0);
- csr15 = lp->a.read_csr(ioaddr, CSR15);
- if (dev->flags & IFF_PROMISC) {
- /* Log any net taps. */
- netif_info(lp, hw, dev, "Promiscuous mode enabled\n");
- lp->init_block->mode =
- cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) <<
- 7);
- lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000);
- } else {
- lp->init_block->mode =
- cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7);
- lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff);
- pcnet32_load_multicast(dev);
- }
-
- if (suspended) {
- int csr5;
- /* clear SUSPEND (SPND) - CSR5 bit 0 */
- csr5 = lp->a.read_csr(ioaddr, CSR5);
- lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
- } else {
- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
- pcnet32_restart(dev, CSR0_NORMAL);
- netif_wake_queue(dev);
- }
-
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-/* This routine assumes that the lp->lock is held */
-static int mdio_read(struct net_device *dev, int phy_id, int reg_num)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
- u16 val_out;
-
- if (!lp->mii)
- return 0;
-
- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
- val_out = lp->a.read_bcr(ioaddr, 34);
-
- return val_out;
-}
-
-/* This routine assumes that the lp->lock is held */
-static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- if (!lp->mii)
- return;
-
- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
- lp->a.write_bcr(ioaddr, 34, val);
-}
-
-static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int rc;
- unsigned long flags;
-
- /* SIOC[GS]MIIxxx ioctls */
- if (lp->mii) {
- spin_lock_irqsave(&lp->lock, flags);
- rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL);
- spin_unlock_irqrestore(&lp->lock, flags);
- } else {
- rc = -EOPNOTSUPP;
- }
-
- return rc;
-}
-
-static int pcnet32_check_otherphy(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- struct mii_if_info mii = lp->mii_if;
- u16 bmcr;
- int i;
-
- for (i = 0; i < PCNET32_MAX_PHYS; i++) {
- if (i == lp->mii_if.phy_id)
- continue; /* skip active phy */
- if (lp->phymask & (1 << i)) {
- mii.phy_id = i;
- if (mii_link_ok(&mii)) {
- /* found PHY with active link */
- netif_info(lp, link, dev, "Using PHY number %d\n",
- i);
-
- /* isolate inactive phy */
- bmcr =
- mdio_read(dev, lp->mii_if.phy_id, MII_BMCR);
- mdio_write(dev, lp->mii_if.phy_id, MII_BMCR,
- bmcr | BMCR_ISOLATE);
-
- /* de-isolate new phy */
- bmcr = mdio_read(dev, i, MII_BMCR);
- mdio_write(dev, i, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
-
- /* set new phy address */
- lp->mii_if.phy_id = i;
- return 1;
- }
- }
- }
- return 0;
-}
-
-/*
- * Show the status of the media. Similar to mii_check_media however it
- * correctly shows the link speed for all (tested) pcnet32 variants.
- * Devices with no mii just report link state without speed.
- *
- * Caller is assumed to hold and release the lp->lock.
- */
-
-static void pcnet32_check_media(struct net_device *dev, int verbose)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- int curr_link;
- int prev_link = netif_carrier_ok(dev) ? 1 : 0;
- u32 bcr9;
-
- if (lp->mii) {
- curr_link = mii_link_ok(&lp->mii_if);
- } else {
- ulong ioaddr = dev->base_addr; /* card base I/O address */
- curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
- }
- if (!curr_link) {
- if (prev_link || verbose) {
- netif_carrier_off(dev);
- netif_info(lp, link, dev, "link down\n");
- }
- if (lp->phycount > 1) {
- curr_link = pcnet32_check_otherphy(dev);
- prev_link = 0;
- }
- } else if (verbose || !prev_link) {
- netif_carrier_on(dev);
- if (lp->mii) {
- if (netif_msg_link(lp)) {
- struct ethtool_cmd ecmd = {
- .cmd = ETHTOOL_GSET };
- mii_ethtool_gset(&lp->mii_if, &ecmd);
- netdev_info(dev, "link up, %uMbps, %s-duplex\n",
- ethtool_cmd_speed(&ecmd),
- (ecmd.duplex == DUPLEX_FULL)
- ? "full" : "half");
- }
- bcr9 = lp->a.read_bcr(dev->base_addr, 9);
- if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) {
- if (lp->mii_if.full_duplex)
- bcr9 |= (1 << 0);
- else
- bcr9 &= ~(1 << 0);
- lp->a.write_bcr(dev->base_addr, 9, bcr9);
- }
- } else {
- netif_info(lp, link, dev, "link up\n");
- }
- }
-}
-
-/*
- * Check for loss of link and link establishment.
- * Can not use mii_check_media because it does nothing if mode is forced.
- */
-
-static void pcnet32_watchdog(struct net_device *dev)
-{
- struct pcnet32_private *lp = netdev_priv(dev);
- unsigned long flags;
-
- /* Print the link status if it has changed */
- spin_lock_irqsave(&lp->lock, flags);
- pcnet32_check_media(dev, 0);
- spin_unlock_irqrestore(&lp->lock, flags);
-
- mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT));
-}
-
-static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- if (netif_running(dev)) {
- netif_device_detach(dev);
- pcnet32_close(dev);
- }
- pci_save_state(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
- return 0;
-}
-
-static int pcnet32_pm_resume(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
-
- if (netif_running(dev)) {
- pcnet32_open(dev);
- netif_device_attach(dev);
- }
- return 0;
-}
-
-static void __devexit pcnet32_remove_one(struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- if (dev) {
- struct pcnet32_private *lp = netdev_priv(dev);
-
- unregister_netdev(dev);
- pcnet32_free_ring(dev);
- release_region(dev->base_addr, PCNET32_TOTAL_SIZE);
- pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
- lp->init_block, lp->init_dma_addr);
- free_netdev(dev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-static struct pci_driver pcnet32_driver = {
- .name = DRV_NAME,
- .probe = pcnet32_probe_pci,
- .remove = __devexit_p(pcnet32_remove_one),
- .id_table = pcnet32_pci_tbl,
- .suspend = pcnet32_pm_suspend,
- .resume = pcnet32_pm_resume,
-};
-
-/* An additional parameter that may be passed in... */
-static int debug = -1;
-static int tx_start_pt = -1;
-static int pcnet32_have_pci;
-
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, DRV_NAME " debug level");
-module_param(max_interrupt_work, int, 0);
-MODULE_PARM_DESC(max_interrupt_work,
- DRV_NAME " maximum events handled per interrupt");
-module_param(rx_copybreak, int, 0);
-MODULE_PARM_DESC(rx_copybreak,
- DRV_NAME " copy breakpoint for copy-only-tiny-frames");
-module_param(tx_start_pt, int, 0);
-MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)");
-module_param(pcnet32vlb, int, 0);
-MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)");
-module_param_array(options, int, NULL, 0);
-MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)");
-module_param_array(full_duplex, int, NULL, 0);
-MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)");
-/* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
-module_param_array(homepna, int, NULL, 0);
-MODULE_PARM_DESC(homepna,
- DRV_NAME
- " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
-
-MODULE_AUTHOR("Thomas Bogendoerfer");
-MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
-MODULE_LICENSE("GPL");
-
-#define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
-
-static int __init pcnet32_init_module(void)
-{
- pr_info("%s", version);
-
- pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT);
-
- if ((tx_start_pt >= 0) && (tx_start_pt <= 3))
- tx_start = tx_start_pt;
-
- /* find the PCI devices */
- if (!pci_register_driver(&pcnet32_driver))
- pcnet32_have_pci = 1;
-
- /* should we find any remaining VLbus devices ? */
- if (pcnet32vlb)
- pcnet32_probe_vlbus(pcnet32_portlist);
-
- if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE))
- pr_info("%d cards_found\n", cards_found);
-
- return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV;
-}
-
-static void __exit pcnet32_cleanup_module(void)
-{
- struct net_device *next_dev;
-
- while (pcnet32_dev) {
- struct pcnet32_private *lp = netdev_priv(pcnet32_dev);
- next_dev = lp->next;
- unregister_netdev(pcnet32_dev);
- pcnet32_free_ring(pcnet32_dev);
- release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE);
- pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
- lp->init_block, lp->init_dma_addr);
- free_netdev(pcnet32_dev);
- pcnet32_dev = next_dev;
- }
-
- if (pcnet32_have_pci)
- pci_unregister_driver(&pcnet32_driver);
-}
-
-module_init(pcnet32_init_module);
-module_exit(pcnet32_cleanup_module);
-
-/*
- * Local variables:
- * c-indent-level: 4
- * tab-width: 8
- * End:
- */
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