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747 lines
21 KiB
747 lines
21 KiB
/* A Linux device driver for PCI NE2000 clones. |
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* |
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* Authors and other copyright holders: |
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* 1992-2000 by Donald Becker, NE2000 core and various modifications. |
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* 1995-1998 by Paul Gortmaker, core modifications and PCI support. |
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* Copyright 1993 assigned to the United States Government as represented |
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* by the Director, National Security Agency. |
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* |
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* This software may be used and distributed according to the terms of |
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* the GNU General Public License (GPL), incorporated herein by reference. |
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* Drivers based on or derived from this code fall under the GPL and must |
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* retain the authorship, copyright and license notice. This file is not |
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* a complete program and may only be used when the entire operating |
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* system is licensed under the GPL. |
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* |
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* The author may be reached as [email protected], or C/O |
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* Scyld Computing Corporation |
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* 410 Severn Ave., Suite 210 |
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* Annapolis MD 21403 |
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* |
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* Issues remaining: |
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* People are making PCI NE2000 clones! Oh the horror, the horror... |
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* Limited full-duplex support. |
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*/ |
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|
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#define DRV_NAME "ne2k-pci" |
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#define DRV_DESCRIPTION "PCI NE2000 clone driver" |
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#define DRV_AUTHOR "Donald Becker / Paul Gortmaker" |
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#define DRV_VERSION "1.03" |
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#define DRV_RELDATE "9/22/2003" |
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|
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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|
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/* The user-configurable values. |
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* These may be modified when a driver module is loaded. |
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*/ |
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|
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/* More are supported, limit only on options */ |
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#define MAX_UNITS 8 |
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|
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/* Used to pass the full-duplex flag, etc. */ |
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static int full_duplex[MAX_UNITS]; |
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static int options[MAX_UNITS]; |
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|
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/* Force a non std. amount of memory. Units are 256 byte pages. */ |
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/* #define PACKETBUF_MEMSIZE 0x40 */ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/pci.h> |
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#include <linux/init.h> |
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#include <linux/interrupt.h> |
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#include <linux/ethtool.h> |
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#include <linux/netdevice.h> |
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#include <linux/etherdevice.h> |
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|
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#include <linux/io.h> |
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#include <asm/irq.h> |
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#include <linux/uaccess.h> |
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|
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#include "8390.h" |
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|
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static int ne2k_msg_enable; |
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|
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static const int default_msg_level = (NETIF_MSG_DRV | NETIF_MSG_PROBE | |
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NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR); |
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|
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#if defined(__powerpc__) |
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#define inl_le(addr) le32_to_cpu(inl(addr)) |
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#define inw_le(addr) le16_to_cpu(inw(addr)) |
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#endif |
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|
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MODULE_AUTHOR(DRV_AUTHOR); |
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MODULE_DESCRIPTION(DRV_DESCRIPTION); |
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MODULE_VERSION(DRV_VERSION); |
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MODULE_LICENSE("GPL"); |
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|
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module_param_named(msg_enable, ne2k_msg_enable, int, 0444); |
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module_param_array(options, int, NULL, 0); |
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module_param_array(full_duplex, int, NULL, 0); |
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MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); |
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MODULE_PARM_DESC(options, "Bit 5: full duplex"); |
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MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); |
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|
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/* Some defines that people can play with if so inclined. |
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*/ |
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|
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/* Use 32 bit data-movement operations instead of 16 bit. */ |
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#define USE_LONGIO |
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|
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/* Do we implement the read before write bugfix ? */ |
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/* #define NE_RW_BUGFIX */ |
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|
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/* Flags. We rename an existing ei_status field to store flags! |
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* Thus only the low 8 bits are usable for non-init-time flags. |
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*/ |
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#define ne2k_flags reg0 |
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|
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enum { |
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/* Chip can do only 16/32-bit xfers. */ |
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ONLY_16BIT_IO = 8, ONLY_32BIT_IO = 4, |
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/* User override. */ |
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FORCE_FDX = 0x20, |
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REALTEK_FDX = 0x40, HOLTEK_FDX = 0x80, |
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STOP_PG_0x60 = 0x100, |
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}; |
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|
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enum ne2k_pci_chipsets { |
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CH_RealTek_RTL_8029 = 0, |
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CH_Winbond_89C940, |
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CH_Compex_RL2000, |
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CH_KTI_ET32P2, |
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CH_NetVin_NV5000SC, |
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CH_Via_86C926, |
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CH_SureCom_NE34, |
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CH_Winbond_W89C940F, |
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CH_Holtek_HT80232, |
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CH_Holtek_HT80229, |
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CH_Winbond_89C940_8c4a, |
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}; |
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static struct { |
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char *name; |
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int flags; |
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} pci_clone_list[] = { |
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{"RealTek RTL-8029(AS)", REALTEK_FDX}, |
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{"Winbond 89C940", 0}, |
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{"Compex RL2000", 0}, |
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{"KTI ET32P2", 0}, |
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{"NetVin NV5000SC", 0}, |
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{"Via 86C926", ONLY_16BIT_IO}, |
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{"SureCom NE34", 0}, |
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{"Winbond W89C940F", 0}, |
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{"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, |
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{"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, |
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{"Winbond W89C940(misprogrammed)", 0}, |
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{NULL,} |
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}; |
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static const struct pci_device_id ne2k_pci_tbl[] = { |
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{ 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, |
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{ 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, |
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{ 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, |
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{ 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, |
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{ 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, |
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{ 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, |
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{ 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, |
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{ 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, |
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{ 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, |
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{ 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, |
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{ 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, |
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{ 0, } |
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}; |
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|
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MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); |
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/* ---- No user-serviceable parts below ---- */ |
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|
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#define NE_BASE (dev->base_addr) |
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#define NE_CMD 0x00 |
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#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ |
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#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ |
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#define NE_IO_EXTENT 0x20 |
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|
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#define NESM_START_PG 0x40 /* First page of TX buffer */ |
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#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ |
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static int ne2k_pci_open(struct net_device *dev); |
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static int ne2k_pci_close(struct net_device *dev); |
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|
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static void ne2k_pci_reset_8390(struct net_device *dev); |
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static void ne2k_pci_get_8390_hdr(struct net_device *dev, |
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struct e8390_pkt_hdr *hdr, int ring_page); |
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static void ne2k_pci_block_input(struct net_device *dev, int count, |
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struct sk_buff *skb, int ring_offset); |
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static void ne2k_pci_block_output(struct net_device *dev, const int count, |
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const unsigned char *buf, |
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const int start_page); |
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static const struct ethtool_ops ne2k_pci_ethtool_ops; |
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/* There is no room in the standard 8390 structure for extra info we need, |
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* so we build a meta/outer-wrapper structure.. |
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*/ |
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struct ne2k_pci_card { |
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struct net_device *dev; |
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struct pci_dev *pci_dev; |
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}; |
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|
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/* NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet |
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* buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes |
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* 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be |
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* detected by their SA prefix. |
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* |
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* Reading the SAPROM from a word-wide card with the 8390 set in byte-wide |
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* mode results in doubled values, which can be detected and compensated for. |
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* |
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* The probe is also responsible for initializing the card and filling |
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* in the 'dev' and 'ei_status' structures. |
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*/ |
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|
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static const struct net_device_ops ne2k_netdev_ops = { |
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.ndo_open = ne2k_pci_open, |
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.ndo_stop = ne2k_pci_close, |
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.ndo_start_xmit = ei_start_xmit, |
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.ndo_tx_timeout = ei_tx_timeout, |
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.ndo_get_stats = ei_get_stats, |
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.ndo_set_rx_mode = ei_set_multicast_list, |
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.ndo_validate_addr = eth_validate_addr, |
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.ndo_set_mac_address = eth_mac_addr, |
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#ifdef CONFIG_NET_POLL_CONTROLLER |
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.ndo_poll_controller = ei_poll, |
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#endif |
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}; |
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static int ne2k_pci_init_one(struct pci_dev *pdev, |
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const struct pci_device_id *ent) |
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{ |
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struct net_device *dev; |
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int i; |
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unsigned char SA_prom[32]; |
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int start_page, stop_page; |
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int irq, reg0, chip_idx = ent->driver_data; |
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static unsigned int fnd_cnt; |
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long ioaddr; |
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int flags = pci_clone_list[chip_idx].flags; |
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struct ei_device *ei_local; |
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fnd_cnt++; |
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i = pci_enable_device(pdev); |
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if (i) |
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return i; |
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ioaddr = pci_resource_start(pdev, 0); |
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irq = pdev->irq; |
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|
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if (!ioaddr || ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) == 0)) { |
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dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); |
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goto err_out; |
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} |
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if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) { |
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dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", |
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NE_IO_EXTENT, ioaddr); |
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goto err_out; |
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} |
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reg0 = inb(ioaddr); |
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if (reg0 == 0xFF) |
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goto err_out_free_res; |
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|
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/* Do a preliminary verification that we have a 8390. */ |
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{ |
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int regd; |
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|
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outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); |
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regd = inb(ioaddr + 0x0d); |
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outb(0xff, ioaddr + 0x0d); |
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outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); |
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/* Clear the counter by reading. */ |
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inb(ioaddr + EN0_COUNTER0); |
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if (inb(ioaddr + EN0_COUNTER0) != 0) { |
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outb(reg0, ioaddr); |
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/* Restore the old values. */ |
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outb(regd, ioaddr + 0x0d); |
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goto err_out_free_res; |
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} |
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} |
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/* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ |
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dev = alloc_ei_netdev(); |
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if (!dev) { |
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dev_err(&pdev->dev, "cannot allocate ethernet device\n"); |
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goto err_out_free_res; |
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} |
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dev->netdev_ops = &ne2k_netdev_ops; |
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ei_local = netdev_priv(dev); |
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ei_local->msg_enable = netif_msg_init(ne2k_msg_enable, default_msg_level); |
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SET_NETDEV_DEV(dev, &pdev->dev); |
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/* Reset card. Who knows what dain-bramaged state it was left in. */ |
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{ |
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unsigned long reset_start_time = jiffies; |
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|
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outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); |
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|
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/* This looks like a horrible timing loop, but it should never |
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* take more than a few cycles. |
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*/ |
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while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) |
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/* Limit wait: '2' avoids jiffy roll-over. */ |
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if (jiffies - reset_start_time > 2) { |
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dev_err(&pdev->dev, |
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"Card failure (no reset ack).\n"); |
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goto err_out_free_netdev; |
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} |
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/* Ack all intr. */ |
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outb(0xff, ioaddr + EN0_ISR); |
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} |
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|
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/* Read the 16 bytes of station address PROM. |
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* We must first initialize registers, similar |
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* to NS8390_init(eifdev, 0). |
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* We can't reliably read the SAPROM address without this. |
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* (I learned the hard way!). |
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*/ |
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{ |
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struct {unsigned char value, offset; } program_seq[] = { |
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/* Select page 0 */ |
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{E8390_NODMA + E8390_PAGE0 + E8390_STOP, E8390_CMD}, |
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/* Set word-wide access */ |
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{0x49, EN0_DCFG}, |
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/* Clear the count regs. */ |
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{0x00, EN0_RCNTLO}, |
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/* Mask completion IRQ */ |
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{0x00, EN0_RCNTHI}, |
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{0x00, EN0_IMR}, |
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{0xFF, EN0_ISR}, |
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/* 0x20 Set to monitor */ |
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{E8390_RXOFF, EN0_RXCR}, |
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/* 0x02 and loopback mode */ |
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{E8390_TXOFF, EN0_TXCR}, |
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{32, EN0_RCNTLO}, |
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{0x00, EN0_RCNTHI}, |
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/* DMA starting at 0x0000 */ |
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{0x00, EN0_RSARLO}, |
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{0x00, EN0_RSARHI}, |
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{E8390_RREAD+E8390_START, E8390_CMD}, |
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}; |
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for (i = 0; i < ARRAY_SIZE(program_seq); i++) |
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outb(program_seq[i].value, |
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ioaddr + program_seq[i].offset); |
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|
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} |
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|
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/* Note: all PCI cards have at least 16 bit access, so we don't have |
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* to check for 8 bit cards. Most cards permit 32 bit access. |
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*/ |
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if (flags & ONLY_32BIT_IO) { |
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for (i = 0; i < 4 ; i++) |
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((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); |
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} else |
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for (i = 0; i < 32 /* sizeof(SA_prom )*/; i++) |
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SA_prom[i] = inb(ioaddr + NE_DATAPORT); |
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|
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/* We always set the 8390 registers for word mode. */ |
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outb(0x49, ioaddr + EN0_DCFG); |
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start_page = NESM_START_PG; |
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|
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stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; |
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|
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/* Set up the rest of the parameters. */ |
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dev->irq = irq; |
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dev->base_addr = ioaddr; |
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pci_set_drvdata(pdev, dev); |
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|
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ei_status.name = pci_clone_list[chip_idx].name; |
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ei_status.tx_start_page = start_page; |
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ei_status.stop_page = stop_page; |
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ei_status.word16 = 1; |
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ei_status.ne2k_flags = flags; |
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if (fnd_cnt < MAX_UNITS) { |
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if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) |
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ei_status.ne2k_flags |= FORCE_FDX; |
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} |
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|
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ei_status.rx_start_page = start_page + TX_PAGES; |
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#ifdef PACKETBUF_MEMSIZE |
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/* Allow the packet buffer size to be overridden by know-it-alls. */ |
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ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; |
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#endif |
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|
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ei_status.reset_8390 = &ne2k_pci_reset_8390; |
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ei_status.block_input = &ne2k_pci_block_input; |
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ei_status.block_output = &ne2k_pci_block_output; |
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ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; |
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ei_status.priv = (unsigned long) pdev; |
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|
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dev->ethtool_ops = &ne2k_pci_ethtool_ops; |
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NS8390_init(dev, 0); |
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|
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memcpy(dev->dev_addr, SA_prom, dev->addr_len); |
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|
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i = register_netdev(dev); |
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if (i) |
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goto err_out_free_netdev; |
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netdev_info(dev, "%s found at %#lx, IRQ %d, %pM.\n", |
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pci_clone_list[chip_idx].name, ioaddr, dev->irq, |
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dev->dev_addr); |
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|
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return 0; |
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|
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err_out_free_netdev: |
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free_netdev(dev); |
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err_out_free_res: |
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release_region(ioaddr, NE_IO_EXTENT); |
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err_out: |
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pci_disable_device(pdev); |
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return -ENODEV; |
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} |
|
|
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/* Magic incantation sequence for full duplex on the supported cards. |
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*/ |
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static inline int set_realtek_fdx(struct net_device *dev) |
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{ |
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long ioaddr = dev->base_addr; |
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|
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outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ |
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outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ |
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outb(0x40, ioaddr + 0x06); /* Enable full duplex */ |
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outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ |
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outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ |
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return 0; |
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} |
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|
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static inline int set_holtek_fdx(struct net_device *dev) |
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{ |
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long ioaddr = dev->base_addr; |
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|
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outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); |
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return 0; |
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} |
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|
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static int ne2k_pci_set_fdx(struct net_device *dev) |
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{ |
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if (ei_status.ne2k_flags & REALTEK_FDX) |
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return set_realtek_fdx(dev); |
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else if (ei_status.ne2k_flags & HOLTEK_FDX) |
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return set_holtek_fdx(dev); |
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|
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return -EOPNOTSUPP; |
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} |
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|
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static int ne2k_pci_open(struct net_device *dev) |
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{ |
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int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, |
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dev->name, dev); |
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|
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if (ret) |
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return ret; |
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|
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if (ei_status.ne2k_flags & FORCE_FDX) |
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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. |
|
*/ |
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static void ne2k_pci_reset_8390(struct net_device *dev) |
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{ |
|
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); |
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|
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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, |
|
}; |
|
|
|
|
|
static int __init ne2k_pci_init(void) |
|
{ |
|
return pci_register_driver(&ne2k_driver); |
|
} |
|
|
|
|
|
static void __exit ne2k_pci_cleanup(void) |
|
{ |
|
pci_unregister_driver(&ne2k_driver); |
|
} |
|
|
|
module_init(ne2k_pci_init); |
|
module_exit(ne2k_pci_cleanup);
|
|
|