*
* Copyright 1994 - 2000 Neil Russell.
* (See License)
- *
+ * SPDX-License-Identifier: GPL-2.0
*
* History
* 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added
#include <asm/cache.h>
#include <asm/byteorder.h> /* for nton* / ntoh* stuff */
+#define DEBUG_LL_STATE 0 /* Link local state machine changes */
+#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */
+#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */
+#define DEBUG_INT_STATE 0 /* Internal network state changes */
/*
* The number of receive packet buffers, and the required packet buffer
#define PKTALIGN ARCH_DMA_MINALIGN
/* IPv4 addresses are always 32 bits in size */
-typedef u32 IPaddr_t;
+typedef __be32 IPaddr_t;
/**
struct eth_device {
char name[16];
unsigned char enetaddr[6];
- int iobase;
+ phys_addr_t iobase;
int state;
int (*init) (struct eth_device *, bd_t *);
int (*recv) (struct eth_device *);
void (*halt) (struct eth_device *);
#ifdef CONFIG_MCAST_TFTP
- int (*mcast) (struct eth_device *, u32 ip, u8 set);
+ int (*mcast) (struct eth_device *, const u8 *enetaddr, u8 set);
#endif
int (*write_hwaddr) (struct eth_device *);
struct eth_device *next;
void *priv;
};
-extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */
-extern int eth_register(struct eth_device* dev);/* Register network device */
-extern int eth_unregister(struct eth_device *dev);/* Remove network device */
-extern void eth_try_another(int first_restart); /* Change the device */
-extern void eth_set_current(void); /* set nterface to ethcur var */
-extern struct eth_device *eth_get_dev(void); /* get the current device MAC */
-extern struct eth_device *eth_get_dev_by_name(const char *devname);
-extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */
-extern int eth_get_dev_index(void); /* get the device index */
-extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
-extern int eth_getenv_enetaddr(char *name, uchar *enetaddr);
-extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
+int eth_register(struct eth_device *dev);/* Register network device */
+int eth_unregister(struct eth_device *dev);/* Remove network device */
-/*
- * Get the hardware address for an ethernet interface .
- * Args:
- * base_name - base name for device (normally "eth")
- * index - device index number (0 for first)
- * enetaddr - returns 6 byte hardware address
- * Returns:
- * Return true if the address is valid.
- */
-extern int eth_getenv_enetaddr_by_index(const char *base_name, int index,
- uchar *enetaddr);
+extern struct eth_device *eth_current;
-extern int usb_eth_initialize(bd_t *bi);
-extern int eth_init(bd_t *bis); /* Initialize the device */
-extern int eth_send(void *packet, int length); /* Send a packet */
+static inline __attribute__((always_inline))
+struct eth_device *eth_get_dev(void)
+{
+ return eth_current;
+}
+struct eth_device *eth_get_dev_by_name(const char *devname);
+struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */
-#ifdef CONFIG_API
-extern int eth_receive(void *packet, int length); /* Receive a packet*/
-extern void (*push_packet)(void *packet, int length);
-#endif
-extern int eth_rx(void); /* Check for received packets */
-extern void eth_halt(void); /* stop SCC */
-extern char *eth_get_name(void); /* get name of current device */
+/* get the current device MAC */
+static inline unsigned char *eth_get_ethaddr(void)
+{
+ if (eth_current)
+ return eth_current->enetaddr;
+ return NULL;
+}
+
+/* Set active state */
+static inline __attribute__((always_inline)) int eth_init_state_only(bd_t *bis)
+{
+ eth_get_dev()->state = ETH_STATE_ACTIVE;
+
+ return 0;
+}
+/* Set passive state */
+static inline __attribute__((always_inline)) void eth_halt_state_only(void)
+{
+ eth_get_dev()->state = ETH_STATE_PASSIVE;
+}
/*
* Set the hardware address for an ethernet interface based on 'eth%daddr'
int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
int eth_number);
+int usb_eth_initialize(bd_t *bi);
+
+int eth_initialize(bd_t *bis); /* Initialize network subsystem */
+void eth_try_another(int first_restart); /* Change the device */
+void eth_set_current(void); /* set nterface to ethcur var */
+
+int eth_get_dev_index(void); /* get the device index */
+void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
+int eth_getenv_enetaddr(char *name, uchar *enetaddr);
+int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
+
+/*
+ * Get the hardware address for an ethernet interface .
+ * Args:
+ * base_name - base name for device (normally "eth")
+ * index - device index number (0 for first)
+ * enetaddr - returns 6 byte hardware address
+ * Returns:
+ * Return true if the address is valid.
+ */
+int eth_getenv_enetaddr_by_index(const char *base_name, int index,
+ uchar *enetaddr);
+
+int eth_init(bd_t *bis); /* Initialize the device */
+int eth_send(void *packet, int length); /* Send a packet */
+
+#ifdef CONFIG_API
+int eth_receive(void *packet, int length); /* Receive a packet*/
+extern void (*push_packet)(void *packet, int length);
+#endif
+int eth_rx(void); /* Check for received packets */
+void eth_halt(void); /* stop SCC */
+const char *eth_get_name(void); /* get name of current device */
+
#ifdef CONFIG_MCAST_TFTP
-int eth_mcast_join(IPaddr_t mcast_addr, u8 join);
+int eth_mcast_join(IPaddr_t mcast_addr, int join);
u32 ether_crc(size_t len, unsigned char const *p);
#endif
/* Ethernet header size */
#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr))
+#define ETH_FCS_LEN 4 /* Octets in the FCS */
+
struct e802_hdr {
uchar et_dest[6]; /* Destination node */
uchar et_src[6]; /* Source node */
} echo;
ulong gateway;
struct {
- ushort __unused;
+ ushort unused;
ushort mtu;
} frag;
uchar data[0];
enum proto_t {
BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
- TFTPSRV, TFTPPUT
+ TFTPSRV, TFTPPUT, LINKLOCAL, BOOTME
};
/* from net/net.c */
#endif
/* Initialize the network adapter */
-extern void net_init(void);
-extern int NetLoop(enum proto_t);
+void net_init(void);
+int NetLoop(enum proto_t);
/* Shutdown adapters and cleanup */
-extern void NetStop(void);
+void NetStop(void);
/* Load failed. Start again. */
-extern void NetStartAgain(void);
+void NetStartAgain(void);
/* Get size of the ethernet header when we send */
-extern int NetEthHdrSize(void);
+int NetEthHdrSize(void);
/* Set ethernet header; returns the size of the header */
-extern int NetSetEther(uchar *, uchar *, uint);
-extern int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot);
+int NetSetEther(uchar *, uchar *, uint);
+int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot);
/* Set IP header */
-extern void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source);
-extern void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport,
+void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source);
+void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport,
int sport, int len);
-/* Checksum */
-extern int NetCksumOk(uchar *, int); /* Return true if cksum OK */
-extern uint NetCksum(uchar *, int); /* Calculate the checksum */
+/**
+ * compute_ip_checksum() - Compute IP checksum
+ *
+ * @addr: Address to check (must be 16-bit aligned)
+ * @nbytes: Number of bytes to check (normally a multiple of 2)
+ * @return 16-bit IP checksum
+ */
+unsigned compute_ip_checksum(const void *addr, unsigned nbytes);
+
+/**
+ * add_ip_checksums() - add two IP checksums
+ *
+ * @offset: Offset of first sum (if odd we do a byte-swap)
+ * @sum: First checksum
+ * @new_sum: New checksum to add
+ * @return updated 16-bit IP checksum
+ */
+unsigned add_ip_checksums(unsigned offset, unsigned sum, unsigned new_sum);
+
+/**
+ * ip_checksum_ok() - check if a checksum is correct
+ *
+ * This works by making sure the checksum sums to 0
+ *
+ * @addr: Address to check (must be 16-bit aligned)
+ * @nbytes: Number of bytes to check (normally a multiple of 2)
+ * @return true if the checksum matches, false if not
+ */
+int ip_checksum_ok(const void *addr, unsigned nbytes);
/* Callbacks */
-extern rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */
-extern void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */
-extern rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */
-extern void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */
-extern void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */
-extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
+rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */
+void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */
+rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */
+void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */
+void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */
+void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
/* Network loop state */
enum net_loop_state {
NETLOOP_SUCCESS,
NETLOOP_FAIL
};
+extern enum net_loop_state net_state;
+
static inline void net_set_state(enum net_loop_state state)
{
- extern enum net_loop_state net_state;
-
+ debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state);
net_state = state;
}
* @param sport Source UDP port
* @param payload_len Length of data after the UDP header
*/
-extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport,
+int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport,
int sport, int payload_len);
/* Processes a received packet */
-extern void NetReceive(uchar *, int);
+void NetReceive(uchar *, int);
#ifdef CONFIG_NETCONSOLE
void NcStart(void);
-int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len);
+int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port,
+ unsigned src_port, unsigned len);
+#endif
+
+static inline __attribute__((always_inline)) int eth_is_on_demand_init(void)
+{
+#ifdef CONFIG_NETCONSOLE
+ extern enum proto_t net_loop_last_protocol;
+
+ return net_loop_last_protocol != NETCONS;
+#else
+ return 1;
+#endif
+}
+
+static inline void eth_set_last_protocol(int protocol)
+{
+#ifdef CONFIG_NETCONSOLE
+ extern enum proto_t net_loop_last_protocol;
+
+ net_loop_last_protocol = protocol;
+#endif
+}
+#ifdef CONFIG_CMD_BOOTCE
+void BootmeStart(void);
#endif
/*
return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
}
+/**
+ * eth_random_addr - Generate software assigned random Ethernet address
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Generate a random Ethernet address (MAC) that is not multicast
+ * and has the local assigned bit set.
+ */
+static inline void eth_random_addr(uchar *addr)
+{
+ int i;
+ unsigned int seed = get_timer(0);
+
+ for (i = 0; i < 6; i++)
+ addr[i] = rand_r(&seed);
+
+ addr[0] &= 0xfe; /* clear multicast bit */
+ addr[0] |= 0x02; /* set local assignment bit (IEEE802) */
+}
+
/* Convert an IP address to a string */
-extern void ip_to_string(IPaddr_t x, char *s);
+void ip_to_string(IPaddr_t x, char *s);
/* Convert a string to ip address */
-extern IPaddr_t string_to_ip(const char *s);
+IPaddr_t string_to_ip(const char *s);
/* Convert a VLAN id to a string */
-extern void VLAN_to_string(ushort x, char *s);
+void VLAN_to_string(ushort x, char *s);
/* Convert a string to a vlan id */
-extern ushort string_to_VLAN(const char *s);
+ushort string_to_VLAN(const char *s);
/* read a VLAN id from an environment variable */
-extern ushort getenv_VLAN(char *);
+ushort getenv_VLAN(char *);
/* copy a filename (allow for "..." notation, limit length) */
-extern void copy_filename(char *dst, const char *src, int size);
+void copy_filename(char *dst, const char *src, int size);
/* get a random source port */
-extern unsigned int random_port(void);
+unsigned int random_port(void);
+
+/* Update U-Boot over TFTP */
+int update_tftp(ulong addr);
/**********************************************************************/
projects / karo-tx-uboot.git / blobdiff