X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fnet.h;h=237c932be3341350f235c4debf9999ec5d487343;hb=d4a9b17df590c1b0b2a187e1491ea7e946a06a07;hp=735b0b9d26f57cd45afc111a00a5bc96a96d53b0;hpb=05d134b084590684bcf4d832c0035952727b7cd9;p=oweals%2Fu-boot.git

diff --git a/include/net.h b/include/net.h
index 735b0b9d26..237c932be3 100644
--- a/include/net.h
+++ b/include/net.h
@@ -3,7 +3,7 @@
  *
  *	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
@@ -81,7 +81,7 @@ enum eth_state_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 *);
@@ -191,6 +191,8 @@ struct ethernet_hdr {
 /* 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			*/
@@ -482,9 +484,35 @@ 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,
 				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 */