*
* 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
#if defined(CONFIG_8xx)
#include <commproc.h>
-# if !defined(CONFIG_NET_MULTI)
-# if defined(FEC_ENET) || defined(SCC_ENET)
-# define CONFIG_NET_MULTI
-# endif
-# endif
#endif /* CONFIG_8xx */
-#if defined(CONFIG_MPC5xxx)
-# if !defined(CONFIG_NET_MULTI)
-# if defined(CONFIG_MPC5xxx_FEC)
-# define CONFIG_NET_MULTI
-# endif
-# endif
-#endif /* CONFIG_MPC5xxx */
-
-#if !defined(CONFIG_NET_MULTI) && defined(CONFIG_CPM2)
-#include <config.h>
-#if defined(CONFIG_ETHER_ON_FCC)
-#if defined(CONFIG_ETHER_ON_SCC)
-#error "Ethernet not correctly defined"
-#endif /* CONFIG_ETHER_ON_SCC */
-#define CONFIG_NET_MULTI
-#if (CONFIG_ETHER_INDEX == 1)
-#define CONFIG_ETHER_ON_FCC1
-# define CONFIG_SYS_CMXFCR_MASK1 CONFIG_SYS_CMXFCR_MASK
-# define CONFIG_SYS_CMXFCR_VALUE1 CONFIG_SYS_CMXFCR_VALUE
-#elif (CONFIG_ETHER_INDEX == 2)
-#define CONFIG_ETHER_ON_FCC2
-# define CONFIG_SYS_CMXFCR_MASK2 CONFIG_SYS_CMXFCR_MASK
-# define CONFIG_SYS_CMXFCR_VALUE2 CONFIG_SYS_CMXFCR_VALUE
-#elif (CONFIG_ETHER_INDEX == 3)
-#define CONFIG_ETHER_ON_FCC3
-# define CONFIG_SYS_CMXFCR_MASK3 CONFIG_SYS_CMXFCR_MASK
-# define CONFIG_SYS_CMXFCR_VALUE3 CONFIG_SYS_CMXFCR_VALUE
-#endif /* CONFIG_ETHER_INDEX */
-#endif /* CONFIG_ETHER_ON_FCC */
-#endif /* !CONFIG_NET_MULTI && CONFIG_8260 */
-
+#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 PKTBUFSRX 4
#endif
-#define PKTALIGN 32
+#define PKTALIGN ARCH_DMA_MINALIGN
-typedef ulong IPaddr_t;
+/* IPv4 addresses are always 32 bits in size */
+struct in_addr {
+ __be32 s_addr;
+};
+/**
+ * An incoming packet handler.
+ * @param pkt pointer to the application packet
+ * @param dport destination UDP port
+ * @param sip source IP address
+ * @param sport source UDP port
+ * @param len packet length
+ */
+typedef void rxhand_f(uchar *pkt, unsigned dport,
+ struct in_addr sip, unsigned sport,
+ unsigned len);
-/*
- * The current receive packet handler. Called with a pointer to the
- * application packet, and a protocol type (PORT_BOOTPC or PORT_TFTP).
- * All other packets are dealt with without calling the handler.
+/**
+ * An incoming ICMP packet handler.
+ * @param type ICMP type
+ * @param code ICMP code
+ * @param dport destination UDP port
+ * @param sip source IP address
+ * @param sport source UDP port
+ * @param pkt pointer to the ICMP packet data
+ * @param len packet length
*/
-typedef void rxhand_f(uchar *, unsigned, unsigned, unsigned);
+typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport,
+ struct in_addr sip, unsigned sport, uchar *pkt, unsigned len);
/*
* A timeout handler. Called after time interval has expired.
*/
typedef void thand_f(void);
-#define NAMESIZE 16
-
enum eth_state_t {
ETH_STATE_INIT,
ETH_STATE_PASSIVE,
ETH_STATE_ACTIVE
};
+#ifdef CONFIG_DM_ETH
+/**
+ * struct eth_pdata - Platform data for Ethernet MAC controllers
+ *
+ * @iobase: The base address of the hardware registers
+ * @enetaddr: The Ethernet MAC address that is loaded from EEPROM or env
+ * @phy_interface: PHY interface to use - see PHY_INTERFACE_MODE_...
+ */
+struct eth_pdata {
+ phys_addr_t iobase;
+ unsigned char enetaddr[6];
+ int phy_interface;
+};
+
+enum eth_recv_flags {
+ /*
+ * Check hardware device for new packets (otherwise only return those
+ * which are already in the memory buffer ready to process)
+ */
+ ETH_RECV_CHECK_DEVICE = 1 << 0,
+};
+
+/**
+ * struct eth_ops - functions of Ethernet MAC controllers
+ *
+ * start: Prepare the hardware to send and receive packets
+ * send: Send the bytes passed in "packet" as a packet on the wire
+ * recv: Check if the hardware received a packet. If so, set the pointer to the
+ * packet buffer in the packetp parameter. If not, return an error or 0 to
+ * indicate that the hardware receive FIFO is empty. If 0 is returned, the
+ * network stack will not process the empty packet, but free_pkt() will be
+ * called if supplied
+ * free_pkt: Give the driver an opportunity to manage its packet buffer memory
+ * when the network stack is finished processing it. This will only be
+ * called when no error was returned from recv - optional
+ * stop: Stop the hardware from looking for packets - may be called even if
+ * state == PASSIVE
+ * mcast: Join or leave a multicast group (for TFTP) - optional
+ * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux
+ * on some platforms like ARM). This function expects the
+ * eth_pdata::enetaddr field to be populated. The method can
+ * return -ENOSYS to indicate that this is not implemented for
+ this hardware - optional.
+ * read_rom_hwaddr: Some devices have a backup of the MAC address stored in a
+ * ROM on the board. This is how the driver should expose it
+ * to the network stack. This function should fill in the
+ * eth_pdata::enetaddr field - optional
+ */
+struct eth_ops {
+ int (*start)(struct udevice *dev);
+ int (*send)(struct udevice *dev, void *packet, int length);
+ int (*recv)(struct udevice *dev, int flags, uchar **packetp);
+ int (*free_pkt)(struct udevice *dev, uchar *packet, int length);
+ void (*stop)(struct udevice *dev);
+#ifdef CONFIG_MCAST_TFTP
+ int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join);
+#endif
+ int (*write_hwaddr)(struct udevice *dev);
+ int (*read_rom_hwaddr)(struct udevice *dev);
+};
+
+#define eth_get_ops(dev) ((struct eth_ops *)(dev)->driver->ops)
+
+struct udevice *eth_get_dev(void); /* get the current device */
+/*
+ * The devname can be either an exact name given by the driver or device tree
+ * or it can be an alias of the form "eth%d"
+ */
+struct udevice *eth_get_dev_by_name(const char *devname);
+unsigned char *eth_get_ethaddr(void); /* get the current device MAC */
+/* Used only when NetConsole is enabled */
+int eth_init_state_only(void); /* Set active state */
+void eth_halt_state_only(void); /* Set passive state */
+#endif
+
+#ifndef CONFIG_DM_ETH
struct eth_device {
- char name[NAMESIZE];
+ char name[16];
unsigned char enetaddr[6];
- int iobase;
+ phys_addr_t iobase;
int state;
- int (*init) (struct eth_device*, bd_t*);
- int (*send) (struct eth_device*, volatile void* packet, int length);
- int (*recv) (struct eth_device*);
- void (*halt) (struct eth_device*);
+ int (*init)(struct eth_device *, bd_t *);
+ int (*send)(struct eth_device *, void *packet, int length);
+ 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;
+ int index;
void *priv;
};
-extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */
-extern int eth_register(struct eth_device* dev);/* Register network device */
-extern void eth_try_another(int first_restart); /* Change the device */
-#ifdef CONFIG_NET_MULTI
-extern void eth_set_current(void); /* set nterface to ethcur var. */
+int eth_register(struct eth_device *dev);/* Register network device */
+int eth_unregister(struct eth_device *dev);/* Remove network device */
+
+extern struct eth_device *eth_current;
+
+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 */
+
+/* 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(void)
+{
+ 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'
+ * environment variable (or just 'ethaddr' if eth_number is 0).
+ * Args:
+ * base_name - base name for device (normally "eth")
+ * eth_number - value of %d (0 for first device of this type)
+ * Returns:
+ * 0 is success, non-zero is error status from driver.
+ */
+int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
+ int eth_number);
+
+int usb_eth_initialize(bd_t *bi);
#endif
-extern struct eth_device *eth_get_dev(void); /* get the current device MAC */
-extern struct eth_device *eth_get_dev_by_name(char *devname); /* get device */
-extern int eth_get_dev_index (void); /* get the device index */
-extern void eth_set_enetaddr(int num, char* a); /* Set new MAC address */
-extern int eth_init(bd_t *bis); /* Initialize the device */
-extern int eth_send(volatile void *packet, int length); /* Send a packet */
+int eth_initialize(void); /* 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(void); /* Initialize the device */
+int eth_send(void *packet, int length); /* Send a packet */
+
#ifdef CONFIG_API
-extern int eth_receive(volatile void *packet, int length); /* Receive a packet */
+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 */
+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);
-u32 ether_crc (size_t len, unsigned char const *p);
+int eth_mcast_join(struct in_addr mcast_addr, int join);
+u32 ether_crc(size_t len, unsigned char const *p);
#endif
/*
* Ethernet header
*/
-typedef struct {
- uchar et_dest[6]; /* Destination node */
- uchar et_src[6]; /* Source node */
- ushort et_protlen; /* Protocol or length */
- uchar et_dsap; /* 802 DSAP */
- uchar et_ssap; /* 802 SSAP */
- uchar et_ctl; /* 802 control */
- uchar et_snap1; /* SNAP */
- uchar et_snap2;
- uchar et_snap3;
- ushort et_prot; /* 802 protocol */
-} Ethernet_t;
-
-#define ETHER_HDR_SIZE 14 /* Ethernet header size */
-#define E802_HDR_SIZE 22 /* 802 ethernet header size */
+
+struct ethernet_hdr {
+ u8 et_dest[6]; /* Destination node */
+ u8 et_src[6]; /* Source node */
+ u16 et_protlen; /* Protocol or length */
+};
+
+/* Ethernet header size */
+#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr))
+
+#define ETH_FCS_LEN 4 /* Octets in the FCS */
+
+struct e802_hdr {
+ u8 et_dest[6]; /* Destination node */
+ u8 et_src[6]; /* Source node */
+ u16 et_protlen; /* Protocol or length */
+ u8 et_dsap; /* 802 DSAP */
+ u8 et_ssap; /* 802 SSAP */
+ u8 et_ctl; /* 802 control */
+ u8 et_snap1; /* SNAP */
+ u8 et_snap2;
+ u8 et_snap3;
+ u16 et_prot; /* 802 protocol */
+};
+
+/* 802 + SNAP + ethernet header size */
+#define E802_HDR_SIZE (sizeof(struct e802_hdr))
/*
- * Ethernet header
+ * Virtual LAN Ethernet header
*/
-typedef struct {
- uchar vet_dest[6]; /* Destination node */
- uchar vet_src[6]; /* Source node */
- ushort vet_vlan_type; /* PROT_VLAN */
- ushort vet_tag; /* TAG of VLAN */
- ushort vet_type; /* protocol type */
-} VLAN_Ethernet_t;
+struct vlan_ethernet_hdr {
+ u8 vet_dest[6]; /* Destination node */
+ u8 vet_src[6]; /* Source node */
+ u16 vet_vlan_type; /* PROT_VLAN */
+ u16 vet_tag; /* TAG of VLAN */
+ u16 vet_type; /* protocol type */
+};
-#define VLAN_ETHER_HDR_SIZE 18 /* VLAN Ethernet header size */
+/* VLAN Ethernet header size */
+#define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr))
#define PROT_IP 0x0800 /* IP protocol */
#define PROT_ARP 0x0806 /* IP ARP protocol */
/*
* Internet Protocol (IP) header.
*/
-typedef struct {
- uchar ip_hl_v; /* header length and version */
- uchar ip_tos; /* type of service */
- ushort ip_len; /* total length */
- ushort ip_id; /* identification */
- ushort ip_off; /* fragment offset field */
- uchar ip_ttl; /* time to live */
- uchar ip_p; /* protocol */
- ushort ip_sum; /* checksum */
- IPaddr_t ip_src; /* Source IP address */
- IPaddr_t ip_dst; /* Destination IP address */
- ushort udp_src; /* UDP source port */
- ushort udp_dst; /* UDP destination port */
- ushort udp_len; /* Length of UDP packet */
- ushort udp_xsum; /* Checksum */
-} IP_t;
-
-#define IP_HDR_SIZE_NO_UDP (sizeof (IP_t) - 8)
-#define IP_HDR_SIZE (sizeof (IP_t))
+struct ip_hdr {
+ u8 ip_hl_v; /* header length and version */
+ u8 ip_tos; /* type of service */
+ u16 ip_len; /* total length */
+ u16 ip_id; /* identification */
+ u16 ip_off; /* fragment offset field */
+ u8 ip_ttl; /* time to live */
+ u8 ip_p; /* protocol */
+ u16 ip_sum; /* checksum */
+ struct in_addr ip_src; /* Source IP address */
+ struct in_addr ip_dst; /* Destination IP address */
+};
+
+#define IP_OFFS 0x1fff /* ip offset *= 8 */
+#define IP_FLAGS 0xe000 /* first 3 bits */
+#define IP_FLAGS_RES 0x8000 /* reserved */
+#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */
+#define IP_FLAGS_MFRAG 0x2000 /* more fragments */
+
+#define IP_HDR_SIZE (sizeof(struct ip_hdr))
+
+/*
+ * Internet Protocol (IP) + UDP header.
+ */
+struct ip_udp_hdr {
+ u8 ip_hl_v; /* header length and version */
+ u8 ip_tos; /* type of service */
+ u16 ip_len; /* total length */
+ u16 ip_id; /* identification */
+ u16 ip_off; /* fragment offset field */
+ u8 ip_ttl; /* time to live */
+ u8 ip_p; /* protocol */
+ u16 ip_sum; /* checksum */
+ struct in_addr ip_src; /* Source IP address */
+ struct in_addr ip_dst; /* Destination IP address */
+ u16 udp_src; /* UDP source port */
+ u16 udp_dst; /* UDP destination port */
+ u16 udp_len; /* Length of UDP packet */
+ u16 udp_xsum; /* Checksum */
+};
+#define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr))
+#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE)
/*
* Address Resolution Protocol (ARP) header.
*/
-typedef struct
-{
- ushort ar_hrd; /* Format of hardware address */
+struct arp_hdr {
+ u16 ar_hrd; /* Format of hardware address */
# define ARP_ETHER 1 /* Ethernet hardware address */
- ushort ar_pro; /* Format of protocol address */
- uchar ar_hln; /* Length of hardware address */
- uchar ar_pln; /* Length of protocol address */
- ushort ar_op; /* Operation */
+ u16 ar_pro; /* Format of protocol address */
+ u8 ar_hln; /* Length of hardware address */
+# define ARP_HLEN 6
+ u8 ar_pln; /* Length of protocol address */
+# define ARP_PLEN 4
+ u16 ar_op; /* Operation */
# define ARPOP_REQUEST 1 /* Request to resolve address */
# define ARPOP_REPLY 2 /* Response to previous request */
* the sizes above, and are defined as appropriate for
* specific hardware/protocol combinations.
*/
- uchar ar_data[0];
+ u8 ar_data[0];
+#define ar_sha ar_data[0]
+#define ar_spa ar_data[ARP_HLEN]
+#define ar_tha ar_data[ARP_HLEN + ARP_PLEN]
+#define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN]
#if 0
- uchar ar_sha[]; /* Sender hardware address */
- uchar ar_spa[]; /* Sender protocol address */
- uchar ar_tha[]; /* Target hardware address */
- uchar ar_tpa[]; /* Target protocol address */
+ u8 ar_sha[]; /* Sender hardware address */
+ u8 ar_spa[]; /* Sender protocol address */
+ u8 ar_tha[]; /* Target hardware address */
+ u8 ar_tpa[]; /* Target protocol address */
#endif /* 0 */
-} ARP_t;
+};
#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */
* ICMP stuff (just enough to handle (host) redirect messages)
*/
#define ICMP_ECHO_REPLY 0 /* Echo reply */
+#define ICMP_NOT_REACH 3 /* Detination unreachable */
#define ICMP_REDIRECT 5 /* Redirect (change route) */
#define ICMP_ECHO_REQUEST 8 /* Echo request */
#define ICMP_REDIR_NET 0 /* Redirect Net */
#define ICMP_REDIR_HOST 1 /* Redirect Host */
-typedef struct icmphdr {
- uchar type;
- uchar code;
- ushort checksum;
+/* Codes for NOT_REACH */
+#define ICMP_NOT_REACH_PORT 3 /* Port unreachable */
+
+struct icmp_hdr {
+ u8 type;
+ u8 code;
+ u16 checksum;
union {
struct {
- ushort id;
- ushort sequence;
+ u16 id;
+ u16 sequence;
} echo;
- ulong gateway;
+ u32 gateway;
struct {
- ushort __unused;
- ushort mtu;
+ u16 unused;
+ u16 mtu;
} frag;
+ u8 data[0];
} un;
-} ICMP_t;
+};
+#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr))
+#define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE)
/*
* Maximum packet size; used to allocate packet storage.
*
* Note:
*
- * All variables of type IPaddr_t are stored in NETWORK byte order
+ * All variables of type struct in_addr are stored in NETWORK byte order
* (big endian).
*/
/* net.c */
/** BOOTP EXTENTIONS **/
-extern IPaddr_t NetOurGatewayIP; /* Our gateway IP addresse */
-extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown)*/
-extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown)*/
+extern struct in_addr net_gateway; /* Our gateway IP address */
+extern struct in_addr net_netmask; /* Our subnet mask (0 = unknown) */
+/* Our Domain Name Server (0 = unknown) */
+extern struct in_addr net_dns_server;
#if defined(CONFIG_BOOTP_DNS2)
-extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown)*/
+/* Our 2nd Domain Name Server (0 = unknown) */
+extern struct in_addr net_dns_server2;
#endif
-extern char NetOurNISDomain[32]; /* Our NIS domain */
-extern char NetOurHostName[32]; /* Our hostname */
-extern char NetOurRootPath[64]; /* Our root path */
-extern ushort NetBootFileSize; /* Our boot file size in blocks */
+extern char net_nis_domain[32]; /* Our IS domain */
+extern char net_hostname[32]; /* Our hostname */
+extern char net_root_path[64]; /* Our root path */
/** END OF BOOTP EXTENTIONS **/
-extern ulong NetBootFileXferSize; /* size of bootfile in bytes */
-extern uchar NetOurEther[6]; /* Our ethernet address */
-extern uchar NetServerEther[6]; /* Boot server enet address */
-extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */
-extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */
-extern volatile uchar * NetTxPacket; /* THE transmit packet */
-extern volatile uchar * NetRxPackets[PKTBUFSRX];/* Receive packets */
-extern volatile uchar * NetRxPkt; /* Current receive packet */
-extern int NetRxPktLen; /* Current rx packet length */
-extern unsigned NetIPID; /* IP ID (counting) */
-extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */
-extern uchar NetEtherNullAddr[6];
-
-#define VLAN_NONE 4095 /* untagged */
-#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */
-extern ushort NetOurVLAN; /* Our VLAN */
-extern ushort NetOurNativeVLAN; /* Our Native VLAN */
-
-extern uchar NetCDPAddr[6]; /* Ethernet CDP address */
-extern ushort CDPNativeVLAN; /* CDP returned native VLAN */
-extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */
-
-extern int NetState; /* Network loop state */
-#define NETLOOP_CONTINUE 1
-#define NETLOOP_RESTART 2
-#define NETLOOP_SUCCESS 3
-#define NETLOOP_FAIL 4
-
-#ifdef CONFIG_NET_MULTI
-extern int NetRestartWrap; /* Tried all network devices */
-#endif
+extern u8 net_ethaddr[6]; /* Our ethernet address */
+extern u8 net_server_ethaddr[6]; /* Boot server enet address */
+extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */
+extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */
+extern uchar *net_tx_packet; /* THE transmit packet */
+extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */
+extern uchar *net_rx_packet; /* Current receive packet */
+extern int net_rx_packet_len; /* Current rx packet length */
+extern const u8 net_bcast_ethaddr[6]; /* Ethernet broadcast address */
+extern const u8 net_null_ethaddr[6];
+
+#define VLAN_NONE 4095 /* untagged */
+#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */
+extern ushort net_our_vlan; /* Our VLAN */
+extern ushort net_native_vlan; /* Our Native VLAN */
+
+extern int net_restart_wrap; /* Tried all network devices */
+
+enum proto_t {
+ BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
+ TFTPSRV, TFTPPUT, LINKLOCAL, BOOTME
+};
-typedef enum { BOOTP, RARP, ARP, TFTP, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP } proto_t;
+extern char net_boot_file_name[128];/* Boot File name */
+/* The actual transferred size of the bootfile (in bytes) */
+extern u32 net_boot_file_size;
+/* Boot file size in blocks as reported by the DHCP server */
+extern u32 net_boot_file_expected_size_in_blocks;
-/* from net/net.c */
-extern char BootFile[128]; /* Boot File name */
+#if defined(CONFIG_CMD_DNS)
+extern char *net_dns_resolve; /* The host to resolve */
+extern char *net_dns_env_var; /* the env var to put the ip into */
+#endif
#if defined(CONFIG_CMD_PING)
-extern IPaddr_t NetPingIP; /* the ip address to ping */
+extern struct in_addr net_ping_ip; /* the ip address to ping */
#endif
#if defined(CONFIG_CMD_CDP)
/* when CDP completes these hold the return values */
-extern ushort CDPNativeVLAN;
-extern ushort CDPApplianceVLAN;
+extern ushort cdp_native_vlan; /* CDP returned native VLAN */
+extern ushort cdp_appliance_vlan; /* CDP returned appliance VLAN */
+
+/*
+ * Check for a CDP packet by examining the received MAC address field
+ */
+static inline int is_cdp_packet(const uchar *ethaddr)
+{
+ extern const u8 net_cdp_ethaddr[6];
+
+ return memcmp(ethaddr, net_cdp_ethaddr, 6) == 0;
+}
#endif
#if defined(CONFIG_CMD_SNTP)
-extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */
-extern int NetTimeOffset; /* offset time from UTC */
+extern struct in_addr net_ntp_server; /* the ip address to NTP */
+extern int net_ntp_time_offset; /* offset time from UTC */
#endif
-/* Initialize the network adapter */
-extern int NetLoop(proto_t);
+#if defined(CONFIG_MCAST_TFTP)
+extern struct in_addr net_mcast_addr;
+#endif
-/* Shutdown adapters and cleanup */
-extern void NetStop(void);
+/* Initialize the network adapter */
+void net_init(void);
+int net_loop(enum proto_t);
/* Load failed. Start again. */
-extern void NetStartAgain(void);
+int net_start_again(void);
/* Get size of the ethernet header when we send */
-extern int NetEthHdrSize(void);
+int net_eth_hdr_size(void);
/* Set ethernet header; returns the size of the header */
-extern int NetSetEther(volatile uchar *, uchar *, uint);
+int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot);
+int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot);
/* Set IP header */
-extern void NetSetIP(volatile uchar *, IPaddr_t, int, int, int);
+void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source);
+void net_set_udp_header(uchar *pkt, struct in_addr 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);
-/* Set callbacks */
-extern void NetSetHandler(rxhand_f *); /* Set RX packet handler */
-extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
+/**
+ * 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);
-/* Transmit "NetTxPacket" */
-extern void NetSendPacket(volatile uchar *, int);
+/**
+ * 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 */
+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 net_set_timeout_handler(ulong, thand_f *);/* Set timeout handler */
+
+/* Network loop state */
+enum net_loop_state {
+ NETLOOP_CONTINUE,
+ NETLOOP_RESTART,
+ NETLOOP_SUCCESS,
+ NETLOOP_FAIL
+};
+extern enum net_loop_state net_state;
-/* Transmit UDP packet, performing ARP request if needed */
-extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len);
+static inline void net_set_state(enum net_loop_state state)
+{
+ debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state);
+ net_state = state;
+}
+
+/* Transmit a packet */
+static inline void net_send_packet(uchar *pkt, int len)
+{
+ /* Currently no way to return errors from eth_send() */
+ (void) eth_send(pkt, len);
+}
+
+/*
+ * Transmit "net_tx_packet" as UDP packet, performing ARP request if needed
+ * (ether will be populated)
+ *
+ * @param ether Raw packet buffer
+ * @param dest IP address to send the datagram to
+ * @param dport Destination UDP port
+ * @param sport Source UDP port
+ * @param payload_len Length of data after the UDP header
+ */
+int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport,
+ int sport, int payload_len);
/* Processes a received packet */
-extern void NetReceive(volatile uchar *, int);
+void net_process_received_packet(uchar *in_packet, int len);
+
+#ifdef CONFIG_NETCONSOLE
+void nc_start(void);
+int nc_input_packet(uchar *pkt, struct in_addr 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
+}
-/* Print an IP address on the console */
-extern void print_IPaddr (IPaddr_t);
+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
+
+/*
+ * Check if autoload is enabled. If so, use either NFS or TFTP to download
+ * the boot file.
+ */
+void net_auto_load(void);
/*
* The following functions are a bit ugly, but necessary to deal with
* footprint in our tests.
*/
/* return IP *in network byteorder* */
-static inline IPaddr_t NetReadIP(volatile void *from)
+static inline struct in_addr net_read_ip(void *from)
{
- IPaddr_t ip;
- memcpy((void*)&ip, (void*)from, sizeof(ip));
+ struct in_addr ip;
+
+ memcpy((void *)&ip, (void *)from, sizeof(ip));
return ip;
}
/* return ulong *in network byteorder* */
-static inline ulong NetReadLong(ulong *from)
+static inline u32 net_read_u32(u32 *from)
{
- ulong l;
- memcpy((void*)&l, (void*)from, sizeof(l));
+ u32 l;
+
+ memcpy((void *)&l, (void *)from, sizeof(l));
return l;
}
/* write IP *in network byteorder* */
-static inline void NetWriteIP(void *to, IPaddr_t ip)
+static inline void net_write_ip(void *to, struct in_addr ip)
{
- memcpy(to, (void*)&ip, sizeof(ip));
+ memcpy(to, (void *)&ip, sizeof(ip));
}
/* copy IP */
-static inline void NetCopyIP(volatile void *to, void *from)
+static inline void net_copy_ip(void *to, void *from)
{
- memcpy((void*)to, from, sizeof(IPaddr_t));
+ memcpy((void *)to, from, sizeof(struct in_addr));
}
/* copy ulong */
-static inline void NetCopyLong(ulong *to, ulong *from)
+static inline void net_copy_u32(u32 *to, u32 *from)
{
- memcpy((void*)to, (void*)from, sizeof(ulong));
+ memcpy((void *)to, (void *)from, sizeof(u32));
}
/**
- * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
+ * is_zero_ethaddr - Determine if give Ethernet address is all zeros.
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Return true if the address is all zeroes.
*/
-static inline int is_zero_ether_addr(const u8 *addr)
+static inline int is_zero_ethaddr(const u8 *addr)
{
return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
}
/**
- * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
+ * is_multicast_ethaddr - Determine if the Ethernet address is a multicast.
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Return true if the address is a multicast address.
* By definition the broadcast address is also a multicast address.
*/
-static inline int is_multicast_ether_addr(const u8 *addr)
+static inline int is_multicast_ethaddr(const u8 *addr)
{
- return (0x01 & addr[0]);
+ return 0x01 & addr[0];
+}
+
+/*
+ * is_broadcast_ethaddr - Determine if the Ethernet address is broadcast
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is the broadcast address.
+ */
+static inline int is_broadcast_ethaddr(const u8 *addr)
+{
+ return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) ==
+ 0xff;
+}
+
+/*
+ * is_valid_ethaddr - Determine if the given Ethernet address is valid
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
+ * a multicast address, and is not FF:FF:FF:FF:FF:FF.
+ *
+ * Return true if the address is valid.
+ */
+static inline int is_valid_ethaddr(const u8 *addr)
+{
+ /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
+ * explicitly check for it here. */
+ return !is_multicast_ethaddr(addr) && !is_zero_ethaddr(addr);
+}
+
+/**
+ * net_random_ethaddr - 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 net_random_ethaddr(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(struct in_addr x, char *s);
/* Convert a string to ip address */
-extern IPaddr_t string_to_ip(char *s);
+struct in_addr 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(char *s);
-
-/* read an IP address from a environment variable */
-extern IPaddr_t getenv_IPaddr (char *);
+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, char *src, int size);
+void copy_filename(char *dst, const char *src, int size);
+
+/* get a random source port */
+unsigned int random_port(void);
+
+/* Update U-Boot over TFTP */
+int update_tftp(ulong addr);
/**********************************************************************/