struct nic is now part of struct dev, rather than the other way around.

Tie into new boot device framework.

src/core/nic.c

@@ -15,6 +15,8 @@ Literature dealing with the network protocols:
 
 **************************************************************************/
 #include "etherboot.h"
+#include "console.h"
+#include "dev.h"
 #include "nic.h"
 #include "elf.h" /* FOR EM_CURRENT */
 
@@ -221,52 +223,6 @@ int	vci_etherboot;
 #endif
 #endif	/* NO_DHCP_SUPPORT */
 
-static int dummy(void *unused __unused)
-{
-	return (0);
-}
-
-/* Careful.  We need an aligned buffer to avoid problems on machines
- * that care about alignment.  To trivally align the ethernet data
- * (the ip hdr and arp requests) we offset the packet by 2 bytes.
- * leaving the ethernet data 16 byte aligned.  Beyond this
- * we use memmove but this makes the common cast simple and fast.
- */
-static char	packet[ETH_FRAME_LEN + ETH_DATA_ALIGN] __aligned;
-
-struct nic	nic =
-{
-	{
-		0,				/* dev.disable */
-		{
-			0,
-			0,
-			PCI_BUS_TYPE,
-		},				/* dev.devid */
-		0,				/* index */
-		0,				/* type */
-		PROBE_FIRST,			/* how_pobe */
-		PROBE_NONE,			/* to_probe */
-		0,				/* failsafe */
-		0,				/* type_index */
-		{},				/* state */
-	},
-	(int (*)(struct nic *, int))dummy,	/* poll */
-	(void (*)(struct nic *, const char *,
-		unsigned int, unsigned int,
-		const char *))dummy,		/* transmit */
-	(void (*)(struct nic *,
-		 irq_action_t))dummy,		/* irq */
-	0,					/* flags */
-	&rom,					/* rom_info */
-	arptable[ARP_CLIENT].node,		/* node_addr */
-	packet + ETH_DATA_ALIGN,		/* packet */
-	0,					/* packetlen */
-	0,					/* ioaddr */
-	0,					/* irqno */
-	0,					/* priv_data */
-};
-
 #ifdef RARP_NOT_BOOTP
 static int rarp(void);
 #else
@@ -275,42 +231,12 @@ static int bootp(void);
 static unsigned short tcpudpchksum(struct iphdr *ip);
 
 
-int eth_probe(struct dev *dev)
-{
-	return probe(dev);
-}
-
-int eth_poll(int retrieve)
-{
-	return ((*nic.poll)(&nic, retrieve));
-}
-
-void eth_transmit(const char *d, unsigned int t, unsigned int s, const void *p)
-{
-	(*nic.transmit)(&nic, d, t, s, p);
-	if (t == ETH_P_IP) twiddle();
-}
-
-void eth_disable(void)
-{
-#ifdef MULTICAST_LEVEL2
-	int i;
-	for(i = 0; i < MAX_IGMP; i++) {
-		leave_group(i);
-	}
-#endif
-	disable(&nic.dev);
-}
-
-void eth_irq (irq_action_t action)
-{
-	(*nic.irq)(&nic,action);
-}
+struct nic *nic = &dev.nic;
 
 /*
  * Find out what our boot parameters are
  */
-int eth_load_configuration(struct dev *dev __unused)
+static int nic_load_configuration(struct dev *dev __unused)
 {
 	int server_found;
 	/* Find a server to get BOOTP reply from */
@@ -340,7 +266,7 @@ int eth_load_configuration(struct dev *dev __unused)
 /**************************************************************************
 LOAD - Try to get booted
 **************************************************************************/
-int eth_load(struct dev *dev __unused)
+static int nic_load(struct dev *dev __unused)
 {
 	const char	*kernel;
 	printf("\nMe: %@", arptable[ARP_CLIENT].ipaddr.s_addr );
@@ -390,6 +316,56 @@ int eth_load(struct dev *dev __unused)
 }
 
 
+static void nic_disable ( struct dev *dev ) {
+	struct nic *nic = &dev->nic;
+
+#ifdef MULTICAST_LEVEL2
+	int i;
+	for(i = 0; i < MAX_IGMP; i++) {
+		leave_group(i);
+	}
+#endif
+	
+	nic->nic_op->disable ( nic );
+}
+
+/* 
+ * Device operations tables
+ *
+ */
+static struct dev_operations nic_operations = {
+	.disable = nic_disable,
+	.load_configuration = nic_load_configuration,
+	.load = nic_load,
+};
+
+/* Careful.  We need an aligned buffer to avoid problems on machines
+ * that care about alignment.  To trivally align the ethernet data
+ * (the ip hdr and arp requests) we offset the packet by 2 bytes.
+ * leaving the ethernet data 16 byte aligned.  Beyond this
+ * we use memmove but this makes the common cast simple and fast.
+ */
+static char	packet[ETH_FRAME_LEN + ETH_DATA_ALIGN] __aligned;
+
+/*
+ * Set up a struct dev to operate as a NIC, return the struct nic *
+ *
+ */
+struct nic * nic_device ( struct dev *dev ) {
+	struct nic *nic = &dev->nic;
+
+	memset ( nic, 0, sizeof ( *nic ) );
+	nic->node_addr = arptable[ARP_CLIENT].node;
+	nic->packet = packet + ETH_DATA_ALIGN;
+	dev->dev_op = &nic_operations;
+	return nic;
+}
+
+
+
+
+
+
 /**************************************************************************
 DEFAULT_NETMASK - Return default netmask for IP address
 **************************************************************************/
@@ -414,9 +390,9 @@ static int await_arp(int ival, void *ptr,
 	struct	arprequest *arpreply;
 	if (ptype != ETH_P_ARP)
 		return 0;
-	if (nic.packetlen < ETH_HLEN + sizeof(struct arprequest))
+	if (nic->packetlen < ETH_HLEN + sizeof(struct arprequest))
 		return 0;
-	arpreply = (struct arprequest *)&nic.packet[ETH_HLEN];
+	arpreply = (struct arprequest *)&nic->packet[ETH_HLEN];
 
 	if (arpreply->opcode != htons(ARP_REPLY)) 
 		return 0;
@@ -703,7 +679,7 @@ int tftp_block ( struct tftpreq_info_t *request, struct tftpblk_info_t *block )
 			continue; /* Back to waiting for packet */
 		}
 		/* Packet has been received */
-		rcvd = (struct tftp_t *)&nic.packet[ETH_HLEN];
+		rcvd = (struct tftp_t *)&nic->packet[ETH_HLEN];
 		recvlen = ntohs(rcvd->udp.len) - sizeof(struct udphdr)
 			- sizeof(rcvd->opcode);
 		rport = ntohs(rcvd->udp.src);
@@ -783,9 +759,9 @@ static int await_rarp(int ival, void *ptr,
 	struct arprequest *arpreply;
 	if (ptype != ETH_P_RARP)
 		return 0;
-	if (nic.packetlen < ETH_HLEN + sizeof(struct arprequest))
+	if (nic->packetlen < ETH_HLEN + sizeof(struct arprequest))
 		return 0;
-	arpreply = (struct arprequest *)&nic.packet[ETH_HLEN];
+	arpreply = (struct arprequest *)&nic->packet[ETH_HLEN];
 	if (arpreply->opcode != htons(RARP_REPLY))
 		return 0;
 	if ((arpreply->opcode == htons(RARP_REPLY)) &&
@@ -847,9 +823,9 @@ static int await_bootp(int ival __unused, void *ptr __unused,
 	if (!udp) {
 		return 0;
 	}
-	bootpreply = (struct bootp_t *)&nic.packet[ETH_HLEN + 
+	bootpreply = (struct bootp_t *)&nic->packet[ETH_HLEN + 
 		sizeof(struct iphdr) + sizeof(struct udphdr)];
-	if (nic.packetlen < ETH_HLEN + sizeof(struct iphdr) + 
+	if (nic->packetlen < ETH_HLEN + sizeof(struct iphdr) + 
 		sizeof(struct udphdr) + 
 #ifdef NO_DHCP_SUPPORT
 		sizeof(struct bootp_t)
@@ -922,11 +898,11 @@ static int bootp(void)
 	unsigned char *bp_vend;
 
 #ifndef	NO_DHCP_SUPPORT
-	dhcp_machine_info[4] = nic.dev.devid.bus_type;
-	dhcp_machine_info[5] = nic.dev.devid.vendor_id & 0xff;
-	dhcp_machine_info[6] = ((nic.dev.devid.vendor_id) >> 8) & 0xff;
-	dhcp_machine_info[7] = nic.dev.devid.device_id & 0xff;
-	dhcp_machine_info[8] = ((nic.dev.devid.device_id) >> 8) & 0xff;
+	dhcp_machine_info[4] = dev.devid.bus_type;
+	dhcp_machine_info[5] = dev.devid.vendor_id & 0xff;
+	dhcp_machine_info[6] = ((dev.devid.vendor_id) >> 8) & 0xff;
+	dhcp_machine_info[7] = dev.devid.device_id & 0xff;
+	dhcp_machine_info[8] = ((dev.devid.device_id) >> 8) & 0xff;
 #endif	/* NO_DHCP_SUPPORT */
 	memset(&ip, 0, sizeof(struct bootpip_t));
 	ip.bp.bp_op = BOOTP_REQUEST;
@@ -1092,11 +1068,11 @@ static void process_igmp(struct iphdr *ip, unsigned long now)
 	int i;
 	unsigned iplen;
 	if (!ip || (ip->protocol == IP_IGMP) ||
-		(nic.packetlen < sizeof(struct iphdr) + sizeof(struct igmp))) {
+		(nic->packetlen < sizeof(struct iphdr) + sizeof(struct igmp))) {
 		return;
 	}
 	iplen = (ip->verhdrlen & 0xf)*4;
-	igmp = (struct igmp *)&nic.packet[sizeof(struct iphdr)];
+	igmp = (struct igmp *)&nic->packet[sizeof(struct iphdr)];
 	if (ipchksum(igmp, ntohs(ip->len) - iplen) != 0)
 		return;
 	if ((igmp->type == IGMP_QUERY) && 
@@ -1303,7 +1279,7 @@ int tcp_transaction(unsigned long destip, unsigned int destsock, void *ptr,
 	       syn_ack = state == CLOSED || state == SYN_RCVD;
 	       consumed = ntohl(tcp->ack) - send_seq - syn_ack;
 	       if (consumed < 0 || consumed > can_send) {
-		       tcp_reset((struct iphdr *)&nic.packet[ETH_HLEN]);
+		       tcp_reset((struct iphdr *)&nic->packet[ETH_HLEN]);
 		       goto recv_data;
 	       }
 
@@ -1345,7 +1321,7 @@ int tcp_transaction(unsigned long destip, unsigned int destsock, void *ptr,
        }
 
  consume_data:
-       ip  = (struct iphdr *)&nic.packet[ETH_HLEN];
+       ip  = (struct iphdr *)&nic->packet[ETH_HLEN];
        header_size = sizeof(struct iphdr) + ((ntohs(tcp->ctrl)>>10)&0x3C);
        payload = ntohs(ip->len) - header_size;
        if (payload > 0 && state == ESTABLISHED) {
@@ -1354,7 +1330,7 @@ int tcp_transaction(unsigned long destip, unsigned int destsock, void *ptr,
 		       recv_seq += payload - old_bytes;
 		       if (state != FIN_WAIT_1 && state != FIN_WAIT_2 &&
 			   !recv(payload - old_bytes,
-				 &nic.packet[ETH_HLEN+header_size+old_bytes],
+				 &nic->packet[ETH_HLEN+header_size+old_bytes],
 				 ptr)) {
 			       goto close;
 		       }
@@ -1466,15 +1442,15 @@ int await_reply(reply_t reply, int ival, void *ptr, long timeout)
 		/* We have something! */
 
 		/* Find the Ethernet packet type */
-		if (nic.packetlen >= ETH_HLEN) {
-			ptype = ((unsigned short) nic.packet[12]) << 8
-				| ((unsigned short) nic.packet[13]);
+		if (nic->packetlen >= ETH_HLEN) {
+			ptype = ((unsigned short) nic->packet[12]) << 8
+				| ((unsigned short) nic->packet[13]);
 		} else continue; /* what else could we do with it? */
 		/* Verify an IP header */
 		ip = 0;
-		if ((ptype == ETH_P_IP) && (nic.packetlen >= ETH_HLEN + sizeof(struct iphdr))) {
+		if ((ptype == ETH_P_IP) && (nic->packetlen >= ETH_HLEN + sizeof(struct iphdr))) {
 			unsigned ipoptlen;
-			ip = (struct iphdr *)&nic.packet[ETH_HLEN];
+			ip = (struct iphdr *)&nic->packet[ETH_HLEN];
 			if ((ip->verhdrlen < 0x45) || (ip->verhdrlen > 0x4F)) 
 				continue;
 			iplen = (ip->verhdrlen & 0xf) * 4;
@@ -1496,17 +1472,17 @@ int await_reply(reply_t reply, int ival, void *ptr, long timeout)
 				/* Delete the ip options, to guarantee
 				 * good alignment, and make etherboot simpler.
 				 */
-				memmove(&nic.packet[ETH_HLEN + sizeof(struct iphdr)], 
-					&nic.packet[ETH_HLEN + iplen],
-					nic.packetlen - ipoptlen);
-				nic.packetlen -= ipoptlen;
+				memmove(&nic->packet[ETH_HLEN + sizeof(struct iphdr)], 
+					&nic->packet[ETH_HLEN + iplen],
+					nic->packetlen - ipoptlen);
+				nic->packetlen -= ipoptlen;
 			}
 		}
 		udp = 0;
 		if (ip && (ip->protocol == IP_UDP) && 
-			(nic.packetlen >= 
+			(nic->packetlen >= 
 			ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr))) {
-			udp = (struct udphdr *)&nic.packet[ETH_HLEN + sizeof(struct iphdr)];
+			udp = (struct udphdr *)&nic->packet[ETH_HLEN + sizeof(struct iphdr)];
 
 			/* Make certain we have a reasonable packet length */
 			if (ntohs(udp->len) > (ntohs(ip->len) - iplen))
@@ -1520,9 +1496,9 @@ int await_reply(reply_t reply, int ival, void *ptr, long timeout)
 		tcp = 0;
 #ifdef DOWNLOAD_PROTO_HTTP
 		if (ip && (ip->protocol == IP_TCP) &&
-		    (nic.packetlen >=
+		    (nic->packetlen >=
 		     ETH_HLEN + sizeof(struct iphdr) + sizeof(struct tcphdr))){
-			tcp = (struct tcphdr *)&nic.packet[ETH_HLEN +
+			tcp = (struct tcphdr *)&nic->packet[ETH_HLEN +
 							 sizeof(struct iphdr)];
 			/* Make certain we have a reasonable packet length */
 			if (((ntohs(tcp->ctrl) >> 10) & 0x3C) >
@@ -1544,11 +1520,11 @@ int await_reply(reply_t reply, int ival, void *ptr, long timeout)
 		 * action.  This allows us reply to arp, igmp, and lacp queries.
 		 */
 		if ((ptype == ETH_P_ARP) &&
-			(nic.packetlen >= ETH_HLEN + sizeof(struct arprequest))) {
+			(nic->packetlen >= ETH_HLEN + sizeof(struct arprequest))) {
 			struct	arprequest *arpreply;
 			unsigned long tmp;
 		
-			arpreply = (struct arprequest *)&nic.packet[ETH_HLEN];
+			arpreply = (struct arprequest *)&nic->packet[ETH_HLEN];
 			memcpy(&tmp, arpreply->tipaddr, sizeof(in_addr));
 			if ((arpreply->opcode == htons(ARP_REQUEST)) &&
 				(tmp == arptable[ARP_CLIENT].ipaddr.s_addr)) {