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ip_input: check if a packet is for inp first before checking all other netifs on netif_list (speeds up packet receiving in most cases)
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@ -19,6 +19,10 @@ HISTORY
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++ New features:
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2007-12-03 Simon Goldschmidt
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* ip.c: ip_input: check if a packet is for inp first before checking all other
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netifs on netif_list (speeds up packet receiving in most cases)
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2007-11-30 Simon Goldschmidt
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* udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
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UDP: move a (connected) pcb selected for input to the front of the list of
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@ -239,7 +239,12 @@ ip_input(struct pbuf *p, struct netif *inp)
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} else
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#endif /* LWIP_IGMP */
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{
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for (netif = netif_list; netif != NULL; netif = netif->next) {
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/* start trying with inp. if that's not acceptable, start walking the
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list of configured netifs.
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'first' is used as a boolean to mark whether we started walking the list */
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int first = 1;
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netif = inp;
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do {
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LWIP_DEBUGF(IP_DEBUG, ("ip_input: iphdr->dest 0x%"X32_F" netif->ip_addr 0x%"X32_F" (0x%"X32_F", 0x%"X32_F", 0x%"X32_F")\n",
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iphdr->dest.addr, netif->ip_addr.addr,
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iphdr->dest.addr & netif->netmask.addr,
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@ -258,7 +263,16 @@ ip_input(struct pbuf *p, struct netif *inp)
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break;
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}
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}
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}
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if (first) {
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first = 0;
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netif = netif_list;
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} else {
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netif = netif->next;
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}
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if (netif == inp) {
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netif = netif->next;
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}
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} while(netif != NULL);
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}
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#if LWIP_DHCP
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