Apply patches from jdpotter@google.com, as submitted to NetWatch Maintainer Team...

[netwatch.git] / net / net.c

diff --git a/net/net.c b/net/net.c
index 3e6130f382b259a9c41a826dfef52f11e76a8b0f..1462f09e30ae44c466140949299598820b99e743 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -1,3 +1,13 @@
+/* net.c
+ * Top-level network glue code
+ * NetWatch system management mode administration console
+ *
+ * Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
+ * This program is free software; you can redistribute and/or modify it under
+ * the terms found in the file LICENSE in the root of this source tree.
+ *
+ */
+
 #include <pci.h>
 #include <smram.h>
 #include <pci-bother.h>
@@ -25,11 +35,35 @@ 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... */
        
        if (!_nic)
                return;
@@ -44,29 +78,12 @@ void eth_poll()
                tcp_tmr();
        ticks++;
 
-       if ((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;
-               }
        }
 }
 
@@ -74,9 +91,9 @@ static err_t _transmit(struct netif *netif, struct pbuf *p)
 {
        struct nic *nic = netif->state;
 
-       outputf("NIC: Transmit packet");
+//     outputf("NIC: Transmit packet");
 
-       nic->transmit(p);
+       nic->transmit(nic, p);
 
        LINK_STATS_INC(link.xmit);