diff options
Diffstat (limited to 'drivers/net/ethernet/8390/ne2k-pci.c')
| -rw-r--r-- | drivers/net/ethernet/8390/ne2k-pci.c | 734 |
1 files changed, 734 insertions, 0 deletions
diff --git a/drivers/net/ethernet/8390/ne2k-pci.c b/drivers/net/ethernet/8390/ne2k-pci.c new file mode 100644 index 0000000000..65f56a98c0 --- /dev/null +++ b/drivers/net/ethernet/8390/ne2k-pci.c @@ -0,0 +1,734 @@ +// SPDX-License-Identifier: GPL-1.0+ +/* A Linux device driver for PCI NE2000 clones. + * + * Authors and other copyright holders: + * 1992-2000 by Donald Becker, NE2000 core and various modifications. + * 1995-1998 by Paul Gortmaker, core modifications and PCI support. + * Copyright 1993 assigned to the 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 (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. + * + * The author may be reached as becker@scyld.com, or C/O + * Scyld Computing Corporation + * 410 Severn Ave., Suite 210 + * Annapolis MD 21403 + * + * Issues remaining: + * People are making PCI NE2000 clones! Oh the horror, the horror... + * Limited full-duplex support. + */ + +#define DRV_NAME "ne2k-pci" +#define DRV_DESCRIPTION "PCI NE2000 clone driver" +#define DRV_AUTHOR "Donald Becker / Paul Gortmaker" +#define DRV_VERSION "1.03" +#define DRV_RELDATE "9/22/2003" + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +/* The user-configurable values. + * These may be modified when a driver module is loaded. + */ + +/* More are supported, limit only on options */ +#define MAX_UNITS 8 + +/* Used to pass the full-duplex flag, etc. */ +static int full_duplex[MAX_UNITS]; +static int options[MAX_UNITS]; + +/* Force a non std. amount of memory. Units are 256 byte pages. */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/ethtool.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <linux/io.h> +#include <asm/irq.h> +#include <linux/uaccess.h> + +#include "8390.h" + +static int ne2k_msg_enable; + +static const int default_msg_level = (NETIF_MSG_DRV | NETIF_MSG_PROBE | + NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR); + +#if defined(__powerpc__) +#define inl_le(addr) le32_to_cpu(inl(addr)) +#define inw_le(addr) le16_to_cpu(inw(addr)) +#endif + +MODULE_AUTHOR(DRV_AUTHOR); +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_LICENSE("GPL"); + +module_param_named(msg_enable, ne2k_msg_enable, int, 0444); +module_param_array(options, int, NULL, 0); +module_param_array(full_duplex, int, NULL, 0); +MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); +MODULE_PARM_DESC(options, "Bit 5: full duplex"); +MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); + +/* Some defines that people can play with if so inclined. + */ + +/* Use 32 bit data-movement operations instead of 16 bit. */ +#define USE_LONGIO + +/* Do we implement the read before write bugfix ? */ +/* #define NE_RW_BUGFIX */ + +/* Flags. We rename an existing ei_status field to store flags! + * Thus only the low 8 bits are usable for non-init-time flags. + */ +#define ne2k_flags reg0 + +enum { + /* Chip can do only 16/32-bit xfers. */ + ONLY_16BIT_IO = 8, ONLY_32BIT_IO = 4, + /* User override. */ + FORCE_FDX = 0x20, + REALTEK_FDX = 0x40, HOLTEK_FDX = 0x80, + STOP_PG_0x60 = 0x100, +}; + +enum ne2k_pci_chipsets { + CH_RealTek_RTL_8029 = 0, + CH_Winbond_89C940, + CH_Compex_RL2000, + CH_KTI_ET32P2, + CH_NetVin_NV5000SC, + CH_Via_86C926, + CH_SureCom_NE34, + CH_Winbond_W89C940F, + CH_Holtek_HT80232, + CH_Holtek_HT80229, + CH_Winbond_89C940_8c4a, +}; + + +static struct { + char *name; + int flags; +} pci_clone_list[] = { + {"RealTek RTL-8029(AS)", REALTEK_FDX}, + {"Winbond 89C940", 0}, + {"Compex RL2000", 0}, + {"KTI ET32P2", 0}, + {"NetVin NV5000SC", 0}, + {"Via 86C926", ONLY_16BIT_IO}, + {"SureCom NE34", 0}, + {"Winbond W89C940F", 0}, + {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, + {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, + {"Winbond W89C940(misprogrammed)", 0}, + {NULL,} +}; + + +static const struct pci_device_id ne2k_pci_tbl[] = { + { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, + { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, + { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, + { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, + { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, + { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, + { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, + { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, + { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, + { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, + { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); + + +/* ---- No user-serviceable parts below ---- */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x20 + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + + +static int ne2k_pci_open(struct net_device *dev); +static int ne2k_pci_close(struct net_device *dev); + +static void ne2k_pci_reset_8390(struct net_device *dev); +static void ne2k_pci_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page); +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne2k_pci_block_output(struct net_device *dev, const int count, + const unsigned char *buf, + const int start_page); +static const struct ethtool_ops ne2k_pci_ethtool_ops; + + + +/* There is no room in the standard 8390 structure for extra info we need, + * so we build a meta/outer-wrapper structure.. + */ +struct ne2k_pci_card { + struct net_device *dev; + struct pci_dev *pci_dev; +}; + + + +/* NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet + * buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes + * 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be + * detected by their SA prefix. + * + * Reading the SAPROM from a word-wide card with the 8390 set in byte-wide + * mode results in doubled values, which can be detected and compensated for. + * + * The probe is also responsible for initializing the card and filling + * in the 'dev' and 'ei_status' structures. + */ + +static const struct net_device_ops ne2k_netdev_ops = { + .ndo_open = ne2k_pci_open, + .ndo_stop = ne2k_pci_close, + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_rx_mode = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int ne2k_pci_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *dev; + int i; + unsigned char SA_prom[32]; + int start_page, stop_page; + int irq, reg0, chip_idx = ent->driver_data; + static unsigned int fnd_cnt; + long ioaddr; + int flags = pci_clone_list[chip_idx].flags; + struct ei_device *ei_local; + + fnd_cnt++; + + i = pci_enable_device(pdev); + if (i) + return i; + + ioaddr = pci_resource_start(pdev, 0); + irq = pdev->irq; + + if (!ioaddr || ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) == 0)) { + dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); + goto err_out; + } + + if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) { + dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", + NE_IO_EXTENT, ioaddr); + goto err_out; + } + + reg0 = inb(ioaddr); + if (reg0 == 0xFF) + goto err_out_free_res; + + /* Do a preliminary verification that we have a 8390. */ + { + int regd; + + outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); + regd = inb(ioaddr + 0x0d); + outb(0xff, ioaddr + 0x0d); + outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); + /* Clear the counter by reading. */ + inb(ioaddr + EN0_COUNTER0); + if (inb(ioaddr + EN0_COUNTER0) != 0) { + outb(reg0, ioaddr); + /* Restore the old values. */ + outb(regd, ioaddr + 0x0d); + goto err_out_free_res; + } + } + + /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ + dev = alloc_ei_netdev(); + if (!dev) { + dev_err(&pdev->dev, "cannot allocate ethernet device\n"); + goto err_out_free_res; + } + dev->netdev_ops = &ne2k_netdev_ops; + ei_local = netdev_priv(dev); + ei_local->msg_enable = netif_msg_init(ne2k_msg_enable, default_msg_level); + + SET_NETDEV_DEV(dev, &pdev->dev); + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; + + outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + /* This looks like a horrible timing loop, but it should never + * take more than a few cycles. + */ + while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) + /* Limit wait: '2' avoids jiffy roll-over. */ + if (jiffies - reset_start_time > 2) { + dev_err(&pdev->dev, + "Card failure (no reset ack).\n"); + goto err_out_free_netdev; + } + /* Ack all intr. */ + outb(0xff, ioaddr + EN0_ISR); + } + + /* Read the 16 bytes of station address PROM. + * We must first initialize registers, similar + * to NS8390_init(eifdev, 0). + * We can't reliably read the SAPROM address without this. + * (I learned the hard way!). + */ + { + struct {unsigned char value, offset; } program_seq[] = { + /* Select page 0 */ + {E8390_NODMA + E8390_PAGE0 + E8390_STOP, E8390_CMD}, + /* Set word-wide access */ + {0x49, EN0_DCFG}, + /* Clear the count regs. */ + {0x00, EN0_RCNTLO}, + /* Mask completion IRQ */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, + {0xFF, EN0_ISR}, + /* 0x20 Set to monitor */ + {E8390_RXOFF, EN0_RXCR}, + /* 0x02 and loopback mode */ + {E8390_TXOFF, EN0_TXCR}, + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + /* DMA starting at 0x0000 */ + {0x00, EN0_RSARLO}, + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb(program_seq[i].value, + ioaddr + program_seq[i].offset); + + } + + /* Note: all PCI cards have at least 16 bit access, so we don't have + * to check for 8 bit cards. Most cards permit 32 bit access. + */ + if (flags & ONLY_32BIT_IO) { + for (i = 0; i < 4 ; i++) + ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); + } else + for (i = 0; i < 32 /* sizeof(SA_prom )*/; i++) + SA_prom[i] = inb(ioaddr + NE_DATAPORT); + + /* We always set the 8390 registers for word mode. */ + outb(0x49, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + + stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; + + /* Set up the rest of the parameters. */ + dev->irq = irq; + dev->base_addr = ioaddr; + pci_set_drvdata(pdev, dev); + + ei_status.name = pci_clone_list[chip_idx].name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; + ei_status.ne2k_flags = flags; + if (fnd_cnt < MAX_UNITS) { + if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) + ei_status.ne2k_flags |= FORCE_FDX; + } + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne2k_pci_reset_8390; + ei_status.block_input = &ne2k_pci_block_input; + ei_status.block_output = &ne2k_pci_block_output; + ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; + ei_status.priv = (unsigned long) pdev; + + dev->ethtool_ops = &ne2k_pci_ethtool_ops; + NS8390_init(dev, 0); + + eth_hw_addr_set(dev, SA_prom); + + i = register_netdev(dev); + if (i) + goto err_out_free_netdev; + + netdev_info(dev, "%s found at %#lx, IRQ %d, %pM.\n", + pci_clone_list[chip_idx].name, ioaddr, dev->irq, + dev->dev_addr); + + return 0; + +err_out_free_netdev: + free_netdev(dev); +err_out_free_res: + release_region(ioaddr, NE_IO_EXTENT); +err_out: + pci_disable_device(pdev); + return -ENODEV; +} + +/* Magic incantation sequence for full duplex on the supported cards. + */ +static inline int set_realtek_fdx(struct net_device *dev) +{ + long ioaddr = dev->base_addr; + + outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ + outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ + outb(0x40, ioaddr + 0x06); /* Enable full duplex */ + outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ + outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ + return 0; +} + +static inline int set_holtek_fdx(struct net_device *dev) +{ + long ioaddr = dev->base_addr; + + outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); + return 0; +} + +static int ne2k_pci_set_fdx(struct net_device *dev) +{ + if (ei_status.ne2k_flags & REALTEK_FDX) + return set_realtek_fdx(dev); + else if (ei_status.ne2k_flags & HOLTEK_FDX) + return set_holtek_fdx(dev); + + return -EOPNOTSUPP; +} + +static int ne2k_pci_open(struct net_device *dev) +{ + int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, + dev->name, dev); + + if (ret) + return ret; + + if (ei_status.ne2k_flags & FORCE_FDX) + ne2k_pci_set_fdx(dev); + + ei_open(dev); + return 0; +} + +static int ne2k_pci_close(struct net_device *dev) +{ + ei_close(dev); + free_irq(dev->irq, dev); + return 0; +} + +/* Hard reset the card. This used to pause for the same period that a + * 8390 reset command required, but that shouldn't be necessary. + */ +static void ne2k_pci_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + struct ei_device *ei_local = netdev_priv(dev); + + netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", + jiffies); + + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (jiffies - reset_start_time > 2) { + netdev_err(dev, "%s did not complete.\n", __func__); + break; + } + /* Ack intr. */ + outb(ENISR_RESET, NE_BASE + EN0_ISR); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. + */ + +static void ne2k_pci_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + + long nic_base = dev->base_addr; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see + */ + if (ei_status.dmaing) { + netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d].\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); + outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb(0, nic_base + EN0_RCNTHI); + outb(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb(ring_page, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr) >> 1); + } else { + *(u32 *)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); + le16_to_cpus(&hdr->count); + } + /* Ack intr. */ + outb(ENISR_RDC, nic_base + EN0_ISR); + ei_status.dmaing &= ~0x01; +} + +/* Block input and output, similar to the Crynwr packet driver. If you + *are porting to a new ethercard, look at the packet driver source for hints. + *The NEx000 doesn't share the on-board packet memory -- you have to put + *the packet out through the "remote DMA" dataport using outb. + */ + +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + long nic_base = dev->base_addr; + char *buf = skb->data; + + /* This *shouldn't* happen. + * If it does, it's the last thing you'll see. + */ + if (ei_status.dmaing) { + netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d]\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb(ring_offset >> 8, nic_base + EN0_RSARHI); + outb(E8390_RREAD + E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT, buf, count >> 1); + if (count & 0x01) + buf[count-1] = inb(NE_BASE + NE_DATAPORT); + } else { + insl(NE_BASE + NE_DATAPORT, buf, count >> 2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + __le16 *b = (__le16 *)buf; + + *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); + buf = (char *)b; + } + if (count & 1) + *buf = inb(NE_BASE + NE_DATAPORT); + } + } + /* Ack intr. */ + outb(ENISR_RDC, nic_base + EN0_ISR); + ei_status.dmaing &= ~0x01; +} + +static void ne2k_pci_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + long nic_base = NE_BASE; + unsigned long dma_start; + + /* On little-endian it's always safe to round the count up for + * word writes. + */ + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + else + if (count & 0x01) + count++; + + /* This *shouldn't* happen. + * If it does, it's the last thing you'll see. + */ + if (ei_status.dmaing) { + netdev_err(dev, "DMAing conflict in %s [DMAstat:%d][irqlock:%d]\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + +#ifdef NE_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + * Crynwr packet driver -- the NatSemi method doesn't work. + * Actually this doesn't always work either, but if you have + * problems with your NEx000 this is better than nothing! + */ + outb(0x42, nic_base + EN0_RCNTLO); + outb(0x00, nic_base + EN0_RCNTHI); + outb(0x42, nic_base + EN0_RSARLO); + outb(0x00, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); +#endif + outb(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(0x00, nic_base + EN0_RSARLO); + outb(start_page, nic_base + EN0_RSARHI); + outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + outsw(NE_BASE + NE_DATAPORT, buf, count >> 1); + } else { + outsl(NE_BASE + NE_DATAPORT, buf, count >> 2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + __le16 *b = (__le16 *)buf; + + outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); + buf = (char *)b; + } + } + } + + dma_start = jiffies; + + while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) + /* Avoid clock roll-over. */ + if (jiffies - dma_start > 2) { + netdev_warn(dev, "timeout waiting for Tx RDC.\n"); + ne2k_pci_reset_8390(dev); + NS8390_init(dev, 1); + break; + } + /* Ack intr. */ + outb(ENISR_RDC, nic_base + EN0_ISR); + ei_status.dmaing &= ~0x01; +} + +static void ne2k_pci_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct ei_device *ei = netdev_priv(dev); + struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_VERSION, sizeof(info->version)); + strscpy(info->bus_info, pci_name(pci_dev), sizeof(info->bus_info)); +} + +static u32 ne2k_pci_get_msglevel(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + + return ei_local->msg_enable; +} + +static void ne2k_pci_set_msglevel(struct net_device *dev, u32 v) +{ + struct ei_device *ei_local = netdev_priv(dev); + + ei_local->msg_enable = v; +} + +static const struct ethtool_ops ne2k_pci_ethtool_ops = { + .get_drvinfo = ne2k_pci_get_drvinfo, + .get_msglevel = ne2k_pci_get_msglevel, + .set_msglevel = ne2k_pci_set_msglevel, +}; + +static void ne2k_pci_remove_one(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + BUG_ON(!dev); + unregister_netdev(dev); + release_region(dev->base_addr, NE_IO_EXTENT); + free_netdev(dev); + pci_disable_device(pdev); +} + +static int __maybe_unused ne2k_pci_suspend(struct device *dev_d) +{ + struct net_device *dev = dev_get_drvdata(dev_d); + + netif_device_detach(dev); + + return 0; +} + +static int __maybe_unused ne2k_pci_resume(struct device *dev_d) +{ + struct net_device *dev = dev_get_drvdata(dev_d); + + NS8390_init(dev, 1); + netif_device_attach(dev); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(ne2k_pci_pm_ops, ne2k_pci_suspend, ne2k_pci_resume); + +static struct pci_driver ne2k_driver = { + .name = DRV_NAME, + .probe = ne2k_pci_init_one, + .remove = ne2k_pci_remove_one, + .id_table = ne2k_pci_tbl, + .driver.pm = &ne2k_pci_pm_ops, +}; +module_pci_driver(ne2k_driver); |