mirror of
https://git.savannah.gnu.org/git/grub.git
synced 2026-10-24 16:19:22 +00:00
add netboot support.
This commit is contained in:
okuji committed
1 parent
694616c180
commit
be514997d2
51 files changed
+9152
-92
No files matched your search
@@ -0,0 +1,195 @@
|
||||
/*
|
||||
* INET An implementation of the TCP/IP protocol suite for the LINUX
|
||||
* operating system. INET is implemented using the BSD Socket
|
||||
* interface as the means of communication with the user level.
|
||||
*
|
||||
* Definitions for the Interfaces handler.
|
||||
*
|
||||
* Version: @(#)dev.h 1.0.10 08/12/93
|
||||
*
|
||||
* Authors: Ross Biro, <bir7@leland.Stanford.Edu>
|
||||
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
|
||||
* Corey Minyard <wf-rch!minyard@relay.EU.net>
|
||||
* Donald J. Becker, <becker@super.org>
|
||||
* Alan Cox, <A.Cox@swansea.ac.uk>
|
||||
* Bjorn Ekwall. <bj0rn@blox.se>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* Moved to /usr/include/linux for NET3
|
||||
*/
|
||||
/* for future expansion when we will have different priorities. */
|
||||
#define DEV_NUMBUFFS 3
|
||||
#define MAX_ADDR_LEN 7
|
||||
#ifndef CONFIG_AX25
|
||||
#ifndef CONFIG_TR
|
||||
#ifndef CONFIG_NET_IPIP
|
||||
#define MAX_HEADER 32 /* We really need about 18 worst case .. so 32 is aligned */
|
||||
#else
|
||||
#define MAX_HEADER 80 /* We need to allow for having tunnel headers */
|
||||
#endif /* IPIP */
|
||||
#else
|
||||
#define MAX_HEADER 48 /* Token Ring header needs 40 bytes ... 48 is aligned */
|
||||
#endif /* TR */
|
||||
#else
|
||||
#define MAX_HEADER 96 /* AX.25 + NetROM */
|
||||
#endif /* AX25 */
|
||||
|
||||
#define IS_MYADDR 1 /* address is (one of) our own */
|
||||
#define IS_LOOPBACK 2 /* address is for LOOPBACK */
|
||||
#define IS_BROADCAST 3 /* address is a valid broadcast */
|
||||
#define IS_INVBCAST 4 /* Wrong netmask bcast not for us (unused)*/
|
||||
#define IS_MULTICAST 5 /* Multicast IP address */
|
||||
|
||||
/*
|
||||
* The DEVICE structure.
|
||||
* Actually, this whole structure is a big mistake. It mixes I/O
|
||||
* data with strictly "high-level" data, and it has to know about
|
||||
* almost every data structure used in the INET module.
|
||||
*/
|
||||
struct device
|
||||
{
|
||||
|
||||
/*
|
||||
* This is the first field of the "visible" part of this structure
|
||||
* (i.e. as seen by users in the "Space.c" file). It is the name
|
||||
* the interface.
|
||||
*/
|
||||
char *name;
|
||||
|
||||
/* I/O specific fields - FIXME: Merge these and struct ifmap into one */
|
||||
unsigned long rmem_end; /* shmem "recv" end */
|
||||
unsigned long rmem_start; /* shmem "recv" start */
|
||||
unsigned long mem_end; /* shared mem end */
|
||||
unsigned long mem_start; /* shared mem start */
|
||||
unsigned long base_addr; /* device I/O address */
|
||||
unsigned char irq; /* device IRQ number */
|
||||
|
||||
/* Low-level status flags. */
|
||||
volatile unsigned char start, /* start an operation */
|
||||
interrupt; /* interrupt arrived */
|
||||
unsigned long tbusy; /* transmitter busy must be long for bitops */
|
||||
|
||||
struct device *next;
|
||||
|
||||
/* The device initialization function. Called only once. */
|
||||
int (*init)(struct device *dev);
|
||||
|
||||
/* Some hardware also needs these fields, but they are not part of the
|
||||
usual set specified in Space.c. */
|
||||
unsigned char if_port; /* Selectable AUI, TP,..*/
|
||||
unsigned char dma; /* DMA channel */
|
||||
|
||||
/* struct enet_statistics* (*get_stats)(struct device *dev); */
|
||||
|
||||
/*
|
||||
* This marks the end of the "visible" part of the structure. All
|
||||
* fields hereafter are internal to the system, and may change at
|
||||
* will (read: may be cleaned up at will).
|
||||
*/
|
||||
|
||||
/* These may be needed for future network-power-down code. */
|
||||
unsigned long trans_start; /* Time (in jiffies) of last Tx */
|
||||
unsigned long last_rx; /* Time of last Rx */
|
||||
|
||||
unsigned short flags; /* interface flags (a la BSD) */
|
||||
unsigned short family; /* address family ID (AF_INET) */
|
||||
unsigned short metric; /* routing metric (not used) */
|
||||
unsigned short mtu; /* interface MTU value */
|
||||
unsigned short type; /* interface hardware type */
|
||||
unsigned short hard_header_len; /* hardware hdr length */
|
||||
void *priv; /* pointer to private data */
|
||||
|
||||
/* Interface address info. */
|
||||
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
|
||||
unsigned char pad; /* make dev_addr aligned to 8 bytes */
|
||||
unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address */
|
||||
unsigned char addr_len; /* hardware address length */
|
||||
unsigned long pa_addr; /* protocol address */
|
||||
unsigned long pa_brdaddr; /* protocol broadcast addr */
|
||||
unsigned long pa_dstaddr; /* protocol P-P other side addr */
|
||||
unsigned long pa_mask; /* protocol netmask */
|
||||
unsigned short pa_alen; /* protocol address length */
|
||||
|
||||
#if 0
|
||||
struct dev_mc_list *mc_list; /* Multicast mac addresses */
|
||||
#endif
|
||||
int mc_count; /* Number of installed mcasts */
|
||||
|
||||
#if 0
|
||||
struct ip_mc_list *ip_mc_list; /* IP multicast filter chain */
|
||||
#endif
|
||||
unsigned int tx_queue_len; /* Max frames per queue allowed */
|
||||
|
||||
/* For load balancing driver pair support */
|
||||
|
||||
unsigned long pkt_queue; /* Packets queued */
|
||||
#if 0
|
||||
struct device *slave; /* Slave device */
|
||||
|
||||
struct net_alias_info *alias_info; /* main dev alias info */
|
||||
struct net_alias *my_alias; /* alias devs */
|
||||
/* Pointer to the interface buffers. */
|
||||
struct sk_buff_head buffs[DEV_NUMBUFFS];
|
||||
#endif
|
||||
|
||||
int (*change_mtu)(struct device *dev, int new_mtu);
|
||||
};
|
||||
|
||||
#if 0
|
||||
struct packet_type {
|
||||
unsigned short type; /* This is really htons(ether_type). */
|
||||
struct device * dev;
|
||||
int (*func) (struct sk_buff *, struct device *,
|
||||
struct packet_type *);
|
||||
void *data;
|
||||
struct packet_type *next;
|
||||
};
|
||||
|
||||
|
||||
/* Used by dev_rint */
|
||||
#define IN_SKBUFF 1
|
||||
|
||||
extern int dev_lockct;
|
||||
|
||||
/*
|
||||
* These two don't currently need to be interrupt-safe
|
||||
* but they may do soon. Do it properly anyway.
|
||||
*/
|
||||
|
||||
extern __inline__ void dev_lock_list(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
save_flags(flags);
|
||||
cli();
|
||||
dev_lockct++;
|
||||
restore_flags(flags);
|
||||
}
|
||||
|
||||
extern __inline__ void dev_unlock_list(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
save_flags(flags);
|
||||
cli();
|
||||
dev_lockct--;
|
||||
restore_flags(flags);
|
||||
}
|
||||
|
||||
/*
|
||||
* This almost never occurs, isn't in performance critical paths
|
||||
* and we can thus be relaxed about it
|
||||
*/
|
||||
|
||||
extern __inline__ void dev_lock_wait(void)
|
||||
{
|
||||
while(dev_lockct)
|
||||
schedule();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
#endif /* _LINUX_DEV_H */
|
||||
Reference in new issue
Block a user