/* netdrv_init.c: Initialization for network devices. */
|
/* netdrv_init.c: Initialization for network devices. */
|
/*
|
/*
|
Written 1993,1994,1995 by Donald Becker.
|
Written 1993,1994,1995 by Donald Becker.
|
|
|
The author may be reached as becker@cesdis.gsfc.nasa.gov or
|
The author may be reached as becker@cesdis.gsfc.nasa.gov or
|
C/O Center of Excellence in Space Data and Information Sciences
|
C/O Center of Excellence in Space Data and Information Sciences
|
Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
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Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
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|
|
This file contains the initialization for the "pl14+" style ethernet
|
This file contains the initialization for the "pl14+" style ethernet
|
drivers. It should eventually replace most of drivers/net/Space.c.
|
drivers. It should eventually replace most of drivers/net/Space.c.
|
It's primary advantage is that it's able to allocate low-memory buffers.
|
It's primary advantage is that it's able to allocate low-memory buffers.
|
A secondary advantage is that the dangerous NE*000 netcards can reserve
|
A secondary advantage is that the dangerous NE*000 netcards can reserve
|
their I/O port region before the SCSI probes start.
|
their I/O port region before the SCSI probes start.
|
|
|
Modifications/additions by Bjorn Ekwall <bj0rn@blox.se>:
|
Modifications/additions by Bjorn Ekwall <bj0rn@blox.se>:
|
ethdev_index[MAX_ETH_CARDS]
|
ethdev_index[MAX_ETH_CARDS]
|
register_netdev() / unregister_netdev()
|
register_netdev() / unregister_netdev()
|
|
|
Modifications by Wolfgang Walter
|
Modifications by Wolfgang Walter
|
Use dev_close cleanly so we always shut things down tidily.
|
Use dev_close cleanly so we always shut things down tidily.
|
|
|
Changed 29/10/95, Alan Cox to pass sockaddr's around for mac addresses.
|
Changed 29/10/95, Alan Cox to pass sockaddr's around for mac addresses.
|
|
|
14/06/96 - Paul Gortmaker: Add generic eth_change_mtu() function.
|
14/06/96 - Paul Gortmaker: Add generic eth_change_mtu() function.
|
|
|
August 12, 1996 - Lawrence V. Stefani: Added fddi_change_mtu() and
|
August 12, 1996 - Lawrence V. Stefani: Added fddi_change_mtu() and
|
fddi_setup() functions.
|
fddi_setup() functions.
|
Sept. 10, 1996 - Lawrence V. Stefani: Increased hard_header_len to
|
Sept. 10, 1996 - Lawrence V. Stefani: Increased hard_header_len to
|
include 3 pad bytes.
|
include 3 pad bytes.
|
*/
|
*/
|
|
|
#include <linux/config.h>
|
#include <linux/config.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
#include <linux/sched.h>
|
#include <linux/sched.h>
|
#include <linux/types.h>
|
#include <linux/types.h>
|
#include <linux/fs.h>
|
#include <linux/fs.h>
|
#include <linux/malloc.h>
|
#include <linux/malloc.h>
|
#include <linux/if_ether.h>
|
#include <linux/if_ether.h>
|
#include <linux/string.h>
|
#include <linux/string.h>
|
#include <linux/netdevice.h>
|
#include <linux/netdevice.h>
|
#include <linux/etherdevice.h>
|
#include <linux/etherdevice.h>
|
#include <linux/fddidevice.h>
|
#include <linux/fddidevice.h>
|
#include <linux/trdevice.h>
|
#include <linux/trdevice.h>
|
#include <linux/if_arp.h>
|
#include <linux/if_arp.h>
|
#ifdef CONFIG_NET_ALIAS
|
#ifdef CONFIG_NET_ALIAS
|
#include <linux/net_alias.h>
|
#include <linux/net_alias.h>
|
#endif
|
#endif
|
|
|
/* The network devices currently exist only in the socket namespace, so these
|
/* The network devices currently exist only in the socket namespace, so these
|
entries are unused. The only ones that make sense are
|
entries are unused. The only ones that make sense are
|
open start the ethercard
|
open start the ethercard
|
close stop the ethercard
|
close stop the ethercard
|
ioctl To get statistics, perhaps set the interface port (AUI, BNC, etc.)
|
ioctl To get statistics, perhaps set the interface port (AUI, BNC, etc.)
|
One can also imagine getting raw packets using
|
One can also imagine getting raw packets using
|
read & write
|
read & write
|
but this is probably better handled by a raw packet socket.
|
but this is probably better handled by a raw packet socket.
|
|
|
Given that almost all of these functions are handled in the current
|
Given that almost all of these functions are handled in the current
|
socket-based scheme, putting ethercard devices in /dev/ seems pointless.
|
socket-based scheme, putting ethercard devices in /dev/ seems pointless.
|
|
|
[Removed all support for /dev network devices. When someone adds
|
[Removed all support for /dev network devices. When someone adds
|
streams then by magic we get them, but otherwise they are un-needed
|
streams then by magic we get them, but otherwise they are un-needed
|
and a space waste]
|
and a space waste]
|
*/
|
*/
|
|
|
/* The list of used and available "eth" slots (for "eth0", "eth1", etc.) */
|
/* The list of used and available "eth" slots (for "eth0", "eth1", etc.) */
|
#define MAX_ETH_CARDS 16 /* same as the number if irq's in irq2dev[] */
|
#define MAX_ETH_CARDS 16 /* same as the number if irq's in irq2dev[] */
|
static struct device *ethdev_index[MAX_ETH_CARDS];
|
static struct device *ethdev_index[MAX_ETH_CARDS];
|
|
|
|
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
|
|
If no device structure is passed, a new one is constructed, complete with
|
If no device structure is passed, a new one is constructed, complete with
|
a SIZEOF_PRIVATE private data area.
|
a SIZEOF_PRIVATE private data area.
|
|
|
If an empty string area is passed as dev->name, or a new structure is made,
|
If an empty string area is passed as dev->name, or a new structure is made,
|
a new name string is constructed. The passed string area should be 8 bytes
|
a new name string is constructed. The passed string area should be 8 bytes
|
long.
|
long.
|
*/
|
*/
|
|
|
struct device *
|
struct device *
|
init_etherdev(struct device *dev, int sizeof_priv)
|
init_etherdev(struct device *dev, int sizeof_priv)
|
{
|
{
|
int new_device = 0;
|
int new_device = 0;
|
int i;
|
int i;
|
|
|
/* Use an existing correctly named device in Space.c:dev_base. */
|
/* Use an existing correctly named device in Space.c:dev_base. */
|
if (dev == NULL) {
|
if (dev == NULL) {
|
int alloc_size = sizeof(struct device) + sizeof("eth%d ")
|
int alloc_size = sizeof(struct device) + sizeof("eth%d ")
|
+ sizeof_priv + 3;
|
+ sizeof_priv + 3;
|
struct device *cur_dev;
|
struct device *cur_dev;
|
char pname[8]; /* Putative name for the device. */
|
char pname[8]; /* Putative name for the device. */
|
|
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
if (ethdev_index[i] == NULL) {
|
if (ethdev_index[i] == NULL) {
|
sprintf(pname, "eth%d", i);
|
sprintf(pname, "eth%d", i);
|
for (cur_dev = dev_base; cur_dev; cur_dev = cur_dev->next)
|
for (cur_dev = dev_base; cur_dev; cur_dev = cur_dev->next)
|
if (strcmp(pname, cur_dev->name) == 0) {
|
if (strcmp(pname, cur_dev->name) == 0) {
|
dev = cur_dev;
|
dev = cur_dev;
|
dev->init = NULL;
|
dev->init = NULL;
|
sizeof_priv = (sizeof_priv + 3) & ~3;
|
sizeof_priv = (sizeof_priv + 3) & ~3;
|
dev->priv = sizeof_priv
|
dev->priv = sizeof_priv
|
? kmalloc(sizeof_priv, GFP_KERNEL)
|
? kmalloc(sizeof_priv, GFP_KERNEL)
|
: NULL;
|
: NULL;
|
if (dev->priv) memset(dev->priv, 0, sizeof_priv);
|
if (dev->priv) memset(dev->priv, 0, sizeof_priv);
|
goto found;
|
goto found;
|
}
|
}
|
}
|
}
|
|
|
alloc_size &= ~3; /* Round to dword boundary. */
|
alloc_size &= ~3; /* Round to dword boundary. */
|
|
|
dev = (struct device *)kmalloc(alloc_size, GFP_KERNEL);
|
dev = (struct device *)kmalloc(alloc_size, GFP_KERNEL);
|
memset(dev, 0, alloc_size);
|
memset(dev, 0, alloc_size);
|
if (sizeof_priv)
|
if (sizeof_priv)
|
dev->priv = (void *) (dev + 1);
|
dev->priv = (void *) (dev + 1);
|
dev->name = sizeof_priv + (char *)(dev + 1);
|
dev->name = sizeof_priv + (char *)(dev + 1);
|
new_device = 1;
|
new_device = 1;
|
}
|
}
|
|
|
found: /* From the double loop above. */
|
found: /* From the double loop above. */
|
|
|
if (dev->name &&
|
if (dev->name &&
|
((dev->name[0] == '\0') || (dev->name[0] == ' '))) {
|
((dev->name[0] == '\0') || (dev->name[0] == ' '))) {
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
if (ethdev_index[i] == NULL) {
|
if (ethdev_index[i] == NULL) {
|
sprintf(dev->name, "eth%d", i);
|
sprintf(dev->name, "eth%d", i);
|
ethdev_index[i] = dev;
|
ethdev_index[i] = dev;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
ether_setup(dev); /* Hmmm, should this be called here? */
|
ether_setup(dev); /* Hmmm, should this be called here? */
|
|
|
if (new_device) {
|
if (new_device) {
|
/* Append the device to the device queue. */
|
/* Append the device to the device queue. */
|
struct device **old_devp = &dev_base;
|
struct device **old_devp = &dev_base;
|
while ((*old_devp)->next)
|
while ((*old_devp)->next)
|
old_devp = & (*old_devp)->next;
|
old_devp = & (*old_devp)->next;
|
(*old_devp)->next = dev;
|
(*old_devp)->next = dev;
|
dev->next = 0;
|
dev->next = 0;
|
}
|
}
|
return dev;
|
return dev;
|
}
|
}
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|
|
|
|
static int eth_mac_addr(struct device *dev, void *p)
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static int eth_mac_addr(struct device *dev, void *p)
|
{
|
{
|
struct sockaddr *addr=p;
|
struct sockaddr *addr=p;
|
if(dev->start)
|
if(dev->start)
|
return -EBUSY;
|
return -EBUSY;
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memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
|
memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
|
return 0;
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return 0;
|
}
|
}
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|
|
static int eth_change_mtu(struct device *dev, int new_mtu)
|
static int eth_change_mtu(struct device *dev, int new_mtu)
|
{
|
{
|
if ((new_mtu < 68) || (new_mtu > 1500))
|
if ((new_mtu < 68) || (new_mtu > 1500))
|
return -EINVAL;
|
return -EINVAL;
|
dev->mtu = new_mtu;
|
dev->mtu = new_mtu;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
#ifdef CONFIG_FDDI
|
#ifdef CONFIG_FDDI
|
|
|
static int fddi_change_mtu(struct device *dev, int new_mtu)
|
static int fddi_change_mtu(struct device *dev, int new_mtu)
|
{
|
{
|
if ((new_mtu < FDDI_K_SNAP_HLEN) || (new_mtu > FDDI_K_SNAP_DLEN))
|
if ((new_mtu < FDDI_K_SNAP_HLEN) || (new_mtu > FDDI_K_SNAP_DLEN))
|
return(-EINVAL);
|
return(-EINVAL);
|
dev->mtu = new_mtu;
|
dev->mtu = new_mtu;
|
return(0);
|
return(0);
|
}
|
}
|
|
|
#endif
|
#endif
|
|
|
void ether_setup(struct device *dev)
|
void ether_setup(struct device *dev)
|
{
|
{
|
int i;
|
int i;
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
This should be in a common file instead of per-driver. */
|
This should be in a common file instead of per-driver. */
|
for (i = 0; i < DEV_NUMBUFFS; i++)
|
for (i = 0; i < DEV_NUMBUFFS; i++)
|
skb_queue_head_init(&dev->buffs[i]);
|
skb_queue_head_init(&dev->buffs[i]);
|
|
|
/* register boot-defined "eth" devices */
|
/* register boot-defined "eth" devices */
|
if (dev->name && (strncmp(dev->name, "eth", 3) == 0)) {
|
if (dev->name && (strncmp(dev->name, "eth", 3) == 0)) {
|
i = simple_strtoul(dev->name + 3, NULL, 0);
|
i = simple_strtoul(dev->name + 3, NULL, 0);
|
if (ethdev_index[i] == NULL) {
|
if (ethdev_index[i] == NULL) {
|
ethdev_index[i] = dev;
|
ethdev_index[i] = dev;
|
}
|
}
|
else if (dev != ethdev_index[i]) {
|
else if (dev != ethdev_index[i]) {
|
/* Really shouldn't happen! */
|
/* Really shouldn't happen! */
|
printk("ether_setup: Ouch! Someone else took %s\n",
|
printk("ether_setup: Ouch! Someone else took %s\n",
|
dev->name);
|
dev->name);
|
}
|
}
|
}
|
}
|
|
|
dev->change_mtu = eth_change_mtu;
|
dev->change_mtu = eth_change_mtu;
|
dev->hard_header = eth_header;
|
dev->hard_header = eth_header;
|
dev->rebuild_header = eth_rebuild_header;
|
dev->rebuild_header = eth_rebuild_header;
|
dev->set_mac_address = eth_mac_addr;
|
dev->set_mac_address = eth_mac_addr;
|
dev->header_cache_bind = eth_header_cache_bind;
|
dev->header_cache_bind = eth_header_cache_bind;
|
dev->header_cache_update= eth_header_cache_update;
|
dev->header_cache_update= eth_header_cache_update;
|
|
|
dev->type = ARPHRD_ETHER;
|
dev->type = ARPHRD_ETHER;
|
dev->hard_header_len = ETH_HLEN;
|
dev->hard_header_len = ETH_HLEN;
|
dev->mtu = 1500; /* eth_mtu */
|
dev->mtu = 1500; /* eth_mtu */
|
dev->addr_len = ETH_ALEN;
|
dev->addr_len = ETH_ALEN;
|
dev->tx_queue_len = 100; /* Ethernet wants good queues */
|
dev->tx_queue_len = 100; /* Ethernet wants good queues */
|
|
|
memset(dev->broadcast,0xFF, ETH_ALEN);
|
memset(dev->broadcast,0xFF, ETH_ALEN);
|
|
|
/* New-style flags. */
|
/* New-style flags. */
|
dev->flags = IFF_BROADCAST|IFF_MULTICAST;
|
dev->flags = IFF_BROADCAST|IFF_MULTICAST;
|
dev->family = AF_INET;
|
dev->family = AF_INET;
|
dev->pa_addr = 0;
|
dev->pa_addr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_mask = 0;
|
dev->pa_mask = 0;
|
dev->pa_alen = 4;
|
dev->pa_alen = 4;
|
}
|
}
|
|
|
#ifdef CONFIG_TR
|
#ifdef CONFIG_TR
|
|
|
void tr_setup(struct device *dev)
|
void tr_setup(struct device *dev)
|
{
|
{
|
int i;
|
int i;
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
/* Fill in the fields of the device structure with ethernet-generic values.
|
This should be in a common file instead of per-driver. */
|
This should be in a common file instead of per-driver. */
|
for (i = 0; i < DEV_NUMBUFFS; i++)
|
for (i = 0; i < DEV_NUMBUFFS; i++)
|
skb_queue_head_init(&dev->buffs[i]);
|
skb_queue_head_init(&dev->buffs[i]);
|
|
|
dev->hard_header = tr_header;
|
dev->hard_header = tr_header;
|
dev->rebuild_header = tr_rebuild_header;
|
dev->rebuild_header = tr_rebuild_header;
|
|
|
dev->type = ARPHRD_IEEE802;
|
dev->type = ARPHRD_IEEE802;
|
dev->hard_header_len = TR_HLEN;
|
dev->hard_header_len = TR_HLEN;
|
dev->mtu = 2000; /* bug in fragmenter...*/
|
dev->mtu = 2000; /* bug in fragmenter...*/
|
dev->addr_len = TR_ALEN;
|
dev->addr_len = TR_ALEN;
|
dev->tx_queue_len = 100; /* Long queues on tr */
|
dev->tx_queue_len = 100; /* Long queues on tr */
|
|
|
memset(dev->broadcast,0xFF, TR_ALEN);
|
memset(dev->broadcast,0xFF, TR_ALEN);
|
|
|
/* New-style flags. */
|
/* New-style flags. */
|
dev->flags = IFF_BROADCAST;
|
dev->flags = IFF_BROADCAST;
|
dev->family = AF_INET;
|
dev->family = AF_INET;
|
dev->pa_addr = 0;
|
dev->pa_addr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_mask = 0;
|
dev->pa_mask = 0;
|
dev->pa_alen = 4;
|
dev->pa_alen = 4;
|
}
|
}
|
|
|
#endif
|
#endif
|
|
|
#ifdef CONFIG_FDDI
|
#ifdef CONFIG_FDDI
|
|
|
void fddi_setup(struct device *dev)
|
void fddi_setup(struct device *dev)
|
{
|
{
|
int i;
|
int i;
|
|
|
/*
|
/*
|
* Fill in the fields of the device structure with FDDI-generic values.
|
* Fill in the fields of the device structure with FDDI-generic values.
|
* This should be in a common file instead of per-driver.
|
* This should be in a common file instead of per-driver.
|
*/
|
*/
|
for (i=0; i < DEV_NUMBUFFS; i++)
|
for (i=0; i < DEV_NUMBUFFS; i++)
|
skb_queue_head_init(&dev->buffs[i]);
|
skb_queue_head_init(&dev->buffs[i]);
|
|
|
dev->change_mtu = fddi_change_mtu;
|
dev->change_mtu = fddi_change_mtu;
|
dev->hard_header = fddi_header;
|
dev->hard_header = fddi_header;
|
dev->rebuild_header = fddi_rebuild_header;
|
dev->rebuild_header = fddi_rebuild_header;
|
|
|
dev->type = ARPHRD_FDDI;
|
dev->type = ARPHRD_FDDI;
|
dev->hard_header_len = FDDI_K_SNAP_HLEN+3; /* Assume 802.2 SNAP hdr len + 3 pad bytes */
|
dev->hard_header_len = FDDI_K_SNAP_HLEN+3; /* Assume 802.2 SNAP hdr len + 3 pad bytes */
|
dev->mtu = FDDI_K_SNAP_DLEN; /* Assume max payload of 802.2 SNAP frame */
|
dev->mtu = FDDI_K_SNAP_DLEN; /* Assume max payload of 802.2 SNAP frame */
|
dev->addr_len = FDDI_K_ALEN;
|
dev->addr_len = FDDI_K_ALEN;
|
dev->tx_queue_len = 100; /* Long queues on FDDI */
|
dev->tx_queue_len = 100; /* Long queues on FDDI */
|
|
|
memset(dev->broadcast, 0xFF, FDDI_K_ALEN);
|
memset(dev->broadcast, 0xFF, FDDI_K_ALEN);
|
|
|
/* New-style flags */
|
/* New-style flags */
|
dev->flags = IFF_BROADCAST | IFF_MULTICAST;
|
dev->flags = IFF_BROADCAST | IFF_MULTICAST;
|
dev->family = AF_INET;
|
dev->family = AF_INET;
|
dev->pa_addr = 0;
|
dev->pa_addr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_brdaddr = 0;
|
dev->pa_mask = 0;
|
dev->pa_mask = 0;
|
dev->pa_alen = 4;
|
dev->pa_alen = 4;
|
return;
|
return;
|
}
|
}
|
|
|
#endif
|
#endif
|
|
|
int ether_config(struct device *dev, struct ifmap *map)
|
int ether_config(struct device *dev, struct ifmap *map)
|
{
|
{
|
if (map->mem_start != (u_long)(-1))
|
if (map->mem_start != (u_long)(-1))
|
dev->mem_start = map->mem_start;
|
dev->mem_start = map->mem_start;
|
if (map->mem_end != (u_long)(-1))
|
if (map->mem_end != (u_long)(-1))
|
dev->mem_end = map->mem_end;
|
dev->mem_end = map->mem_end;
|
if (map->base_addr != (u_short)(-1))
|
if (map->base_addr != (u_short)(-1))
|
dev->base_addr = map->base_addr;
|
dev->base_addr = map->base_addr;
|
if (map->irq != (u_char)(-1))
|
if (map->irq != (u_char)(-1))
|
dev->irq = map->irq;
|
dev->irq = map->irq;
|
if (map->dma != (u_char)(-1))
|
if (map->dma != (u_char)(-1))
|
dev->dma = map->dma;
|
dev->dma = map->dma;
|
if (map->port != (u_char)(-1))
|
if (map->port != (u_char)(-1))
|
dev->if_port = map->port;
|
dev->if_port = map->port;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int register_netdev(struct device *dev)
|
int register_netdev(struct device *dev)
|
{
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{
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struct device *d = dev_base;
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struct device *d = dev_base;
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unsigned long flags;
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unsigned long flags;
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int i=MAX_ETH_CARDS;
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int i=MAX_ETH_CARDS;
|
|
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save_flags(flags);
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save_flags(flags);
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cli();
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cli();
|
|
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if (dev && dev->init) {
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if (dev && dev->init) {
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if (dev->name &&
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if (dev->name &&
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((dev->name[0] == '\0') || (dev->name[0] == ' '))) {
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((dev->name[0] == '\0') || (dev->name[0] == ' '))) {
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for (i = 0; i < MAX_ETH_CARDS; ++i)
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for (i = 0; i < MAX_ETH_CARDS; ++i)
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if (ethdev_index[i] == NULL) {
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if (ethdev_index[i] == NULL) {
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sprintf(dev->name, "eth%d", i);
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sprintf(dev->name, "eth%d", i);
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/* printk("loading device '%s'...\n", dev->name);*/
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/* printk("loading device '%s'...\n", dev->name);*/
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ethdev_index[i] = dev;
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ethdev_index[i] = dev;
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break;
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break;
|
}
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}
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}
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}
|
|
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sti(); /* device probes assume interrupts enabled */
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sti(); /* device probes assume interrupts enabled */
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if (dev->init(dev) != 0) {
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if (dev->init(dev) != 0) {
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if (i < MAX_ETH_CARDS) ethdev_index[i] = NULL;
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if (i < MAX_ETH_CARDS) ethdev_index[i] = NULL;
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restore_flags(flags);
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restore_flags(flags);
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return -EIO;
|
return -EIO;
|
}
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}
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cli();
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cli();
|
|
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/* Add device to end of chain */
|
/* Add device to end of chain */
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if (dev_base) {
|
if (dev_base) {
|
while (d->next)
|
while (d->next)
|
d = d->next;
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d = d->next;
|
d->next = dev;
|
d->next = dev;
|
}
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}
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else
|
else
|
dev_base = dev;
|
dev_base = dev;
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dev->next = NULL;
|
dev->next = NULL;
|
}
|
}
|
restore_flags(flags);
|
restore_flags(flags);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
void unregister_netdev(struct device *dev)
|
void unregister_netdev(struct device *dev)
|
{
|
{
|
struct device *d = dev_base;
|
struct device *d = dev_base;
|
unsigned long flags;
|
unsigned long flags;
|
int i;
|
int i;
|
|
|
save_flags(flags);
|
save_flags(flags);
|
cli();
|
cli();
|
|
|
if (dev == NULL)
|
if (dev == NULL)
|
{
|
{
|
printk("was NULL\n");
|
printk("was NULL\n");
|
restore_flags(flags);
|
restore_flags(flags);
|
return;
|
return;
|
}
|
}
|
/* else */
|
/* else */
|
if (dev->start)
|
if (dev->start)
|
printk("ERROR '%s' busy and not MOD_IN_USE.\n", dev->name);
|
printk("ERROR '%s' busy and not MOD_IN_USE.\n", dev->name);
|
|
|
/*
|
/*
|
* must jump over main_device+aliases
|
* must jump over main_device+aliases
|
* avoid alias devices unregistration so that only
|
* avoid alias devices unregistration so that only
|
* net_alias module manages them
|
* net_alias module manages them
|
*/
|
*/
|
#ifdef CONFIG_NET_ALIAS
|
#ifdef CONFIG_NET_ALIAS
|
if (dev_base == dev)
|
if (dev_base == dev)
|
dev_base = net_alias_nextdev(dev);
|
dev_base = net_alias_nextdev(dev);
|
else
|
else
|
{
|
{
|
while(d && (net_alias_nextdev(d) != dev)) /* skip aliases */
|
while(d && (net_alias_nextdev(d) != dev)) /* skip aliases */
|
d = net_alias_nextdev(d);
|
d = net_alias_nextdev(d);
|
|
|
if (d && (net_alias_nextdev(d) == dev))
|
if (d && (net_alias_nextdev(d) == dev))
|
{
|
{
|
/*
|
/*
|
* Critical: Bypass by consider devices as blocks (maindev+aliases)
|
* Critical: Bypass by consider devices as blocks (maindev+aliases)
|
*/
|
*/
|
net_alias_nextdev_set(d, net_alias_nextdev(dev));
|
net_alias_nextdev_set(d, net_alias_nextdev(dev));
|
}
|
}
|
#else
|
#else
|
if (dev_base == dev)
|
if (dev_base == dev)
|
dev_base = dev->next;
|
dev_base = dev->next;
|
else
|
else
|
{
|
{
|
while (d && (d->next != dev))
|
while (d && (d->next != dev))
|
d = d->next;
|
d = d->next;
|
|
|
if (d && (d->next == dev))
|
if (d && (d->next == dev))
|
{
|
{
|
d->next = dev->next;
|
d->next = dev->next;
|
}
|
}
|
#endif
|
#endif
|
else
|
else
|
{
|
{
|
printk("unregister_netdev: '%s' not found\n", dev->name);
|
printk("unregister_netdev: '%s' not found\n", dev->name);
|
restore_flags(flags);
|
restore_flags(flags);
|
return;
|
return;
|
}
|
}
|
}
|
}
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
for (i = 0; i < MAX_ETH_CARDS; ++i)
|
{
|
{
|
if (ethdev_index[i] == dev)
|
if (ethdev_index[i] == dev)
|
{
|
{
|
ethdev_index[i] = NULL;
|
ethdev_index[i] = NULL;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
restore_flags(flags);
|
restore_flags(flags);
|
|
|
/*
|
/*
|
* You can i.e use a interfaces in a route though it is not up.
|
* You can i.e use a interfaces in a route though it is not up.
|
* We call close_dev (which is changed: it will down a device even if
|
* We call close_dev (which is changed: it will down a device even if
|
* dev->flags==0 (but it will not call dev->stop if IFF_UP
|
* dev->flags==0 (but it will not call dev->stop if IFF_UP
|
* is not set).
|
* is not set).
|
* This will call notifier_call_chain(&netdev_chain, NETDEV_DOWN, dev),
|
* This will call notifier_call_chain(&netdev_chain, NETDEV_DOWN, dev),
|
* dev_mc_discard(dev), ....
|
* dev_mc_discard(dev), ....
|
*/
|
*/
|
|
|
dev_close(dev);
|
dev_close(dev);
|
}
|
}
|
|
|
|
|
/*
|
/*
|
* Local variables:
|
* Local variables:
|
* compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c net_init.c"
|
* compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c net_init.c"
|
* version-control: t
|
* version-control: t
|
* kept-new-versions: 5
|
* kept-new-versions: 5
|
* tab-width: 4
|
* tab-width: 4
|
* End:
|
* End:
|
*/
|
*/
|
|
|
