*
* 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
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 *);
/* 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 */
extern 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 */