Convert receive to be a ring buffer.

[netwatch.git] / net / net.c

diff --git a/net/net.c b/net/net.c
index e7bb80ab50f50c61b0dd9a8ebe9a4d557bd8d14d..0b573214256e4c975af7a78a1c68d0f1dd538c6c 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -25,10 +25,33 @@ static struct netif _netif;
 
 extern struct pci_driver a3c90x_driver;
 
-void eth_poll()
+void eth_recv(struct nic *nic, struct pbuf *p)
 {
-       struct pbuf *p;
        struct eth_hdr *ethhdr;
+       
+       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;
+       }
+}
+
+void eth_poll()
+{
        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... */
        
@@ -45,29 +68,12 @@ void eth_poll()
                tcp_tmr();
        ticks++;
 
-       while ((i--) && ((p = _nic->recv(_nic)) != NULL))
+       while (i > 0)
        {
-//             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);
+               int n = _nic->recv(_nic);
+               i -= n;
+               if (n == 0)
                        break;
-               }
        }
 }