Only memcpy as much as we need to when we need to.

[netwatch.git] / net / net.c

diff --git a/net/net.c b/net/net.c
index 9d99342a48a6c9f3dd46aa7f340c17c88e0976c1..e7bb80ab50f50c61b0dd9a8ebe9a4d557bd8d14d 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -13,9 +13,13 @@
 #include "lwip/sys.h"
 #include <lwip/stats.h>
 #include <lwip/snmp.h>
+#include <lwip/dhcp.h>
+#include <lwip/tcp.h>
 #include "netif/etharp.h"
 #include "netif/ppp_oe.h"
 
+#include "rfb.h"
+
 static struct nic *_nic = 0x0;
 static struct netif _netif;
 
@@ -23,79 +27,57 @@ extern struct pci_driver a3c90x_driver;
 
 void eth_poll()
 {
-       unsigned char pkt[1600];
-       int len;
-       struct pbuf *p, *q;
+       struct pbuf *p;
        struct eth_hdr *ethhdr;
-       int pos = 0;
+       static int ticks = 0;
+       int i = 15;     /* Don't process more than 15 packets at a time; we don't want the host to get TOO badly slowed down... */
        
        if (!_nic)
                return;
        
        smram_tseg_set_state(SMRAM_TSEG_OPEN);
-
-       if (!_nic->poll(_nic, 0))
-               return;
        
-       _nic->packet = pkt;
-       _nic->poll(_nic, 1);
-       
-       len = _nic->packetlen;
-
-       outputf("NIC: Packet: %d bytes", len);
-               
-       p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
-       if (p == NULL)
+       if ((ticks % 1000) == 0)        /* About a minute */
+               dhcp_coarse_tmr();
+       if ((ticks % 8) == 0)   /* About 500msec*/
+               dhcp_fine_tmr();
+       if ((ticks % 4) == 0)   /* About 250msec*/
+               tcp_tmr();
+       ticks++;
+
+       while ((i--) && ((p = _nic->recv(_nic)) != NULL))
        {
-               outputf("NIC: out of memory for packet?");
-               LINK_STATS_INC(link.memerr);
-               LINK_STATS_INC(link.drop);
-               return;
-       }
-       
-       for(q = p; q != NULL; q = q->next)
-       {
-               memcpy(q->payload, pkt+pos, q->len);
-               pos += q->len;
-       }
-
-       LINK_STATS_INC(link.recv);
-       
-       ethhdr = p->payload;
-
-       switch (htons(ethhdr->type)) {
-       case ETHTYPE_IP:
-       case ETHTYPE_ARP:
-               if (_netif.input(p, &_netif) != ERR_OK)
-               {
-                       LWIP_DEBUGF(NETIF_DEBUG, ("netdev_input: IP input error\n"));
+//             outputf("NIC: Packet: %d bytes", p->tot_len);
+                       
+               LINK_STATS_INC(link.recv);
+               
+               ethhdr = p->payload;
+               
+               switch (htons(ethhdr->type)) {
+               case ETHTYPE_IP:
+               case ETHTYPE_ARP:
+                       if (_netif.input(p, &_netif) != ERR_OK)
+                       {
+                               LWIP_DEBUGF(NETIF_DEBUG, ("netdev_input: IP input error\n"));
+                               pbuf_free(p);
+                       }
+                       break;
+                       
+               default:
+                       outputf("Unhandled packet type %04x input", ethhdr->type);
                        pbuf_free(p);
+                       break;
                }
-               break;
-
-       default:
-               outputf("Unhandled packet type %04x input", ethhdr->type);
-               pbuf_free(p);
-               break;
        }
 }
 
 static err_t _transmit(struct netif *netif, struct pbuf *p)
 {
        struct nic *nic = netif->state;
-       struct pbuf *q;
-       unsigned char pkt[1600];
-       unsigned int len = 0;
 
-       for(q = p; q != NULL; q = q->next)
-       {
-               memcpy(pkt + len, q->payload, q->len);
-               len += q->len;
-       }
-
-       outputf("NIC: Transmit packet: %d bytes", len);
+//     outputf("NIC: Transmit packet");
 
-       nic->transmit(len, pkt);
+       nic->transmit(p);
 
        LINK_STATS_INC(link.xmit);
 
@@ -129,21 +111,27 @@ static err_t _init(struct netif *netif)
 
 int eth_register(struct nic *nic)
 {
-       static struct ip_addr ipa = { 0x2dba0280 } , netmask = { 0xF0FFFFFF } , gw = { 0x2eba0280 };
+       static struct ip_addr ipa = { 0 } , netmask = { 0 } , gw = { 0 };
        
        if (_nic)
                return -1;
        netif_add(&_netif, &ipa, &netmask, &gw, (void*)nic, _init, ethernet_input);
        netif_set_default(&_netif);
        netif_set_up(&_netif);
+       dhcp_start(&_netif);
        _nic = nic;
        return 0;
 }
 
 void eth_init()
 {
+       extern void httpd_init();
+       
        /* Required for DMA to work. :( */
        smram_tseg_set_state(SMRAM_TSEG_OPEN);
        lwip_init();
-       pci_probe_driver(a3c90x_driver);
+       httpd_init();
+
+       rfb_init();
+
 }