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Address copy loops optimized for speed.

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This commit is contained in:
christiaans 2006-03-29 13:16:40 +00:00
parent 94abf9d935
commit 7446e31fce
1 changed files with 21 additions and 9 deletions
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30
src/netif/etharp.c
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@ -381,7 +381,9 @@ update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *e
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("update_arp_entry: updating stable entry %"S16_F"\n", (s16_t)i));
/* update address */
for (k = 0; k < netif->hwaddr_len; ++k) {
k = netif->hwaddr_len;
while (k > 0) {
k--;
arp_table[i].ethaddr.addr[k] = ethaddr->addr[k];
}
/* reset time stamp */
@ -397,7 +399,9 @@ update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *e
/* note: this will also terminate the p pbuf chain */
arp_table[i].p = pbuf_dequeue(p);
/* fill-in Ethernet header */
for (k = 0; k < netif->hwaddr_len; ++k) {
k = netif->hwaddr_len;
while(k > 0) {
k--;
ethhdr->dest.addr[k] = ethaddr->addr[k];
ethhdr->src.addr[k] = netif->hwaddr[k];
}
@ -526,7 +530,9 @@ etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p)
hdr->dipaddr = hdr->sipaddr;
hdr->sipaddr = *(struct ip_addr2 *)&netif->ip_addr;
for(i = 0; i < netif->hwaddr_len; ++i) {
i = netif->hwaddr_len;
while(i > 0) {
i--;
hdr->dhwaddr.addr[i] = hdr->shwaddr.addr[i];
hdr->shwaddr.addr[i] = ethaddr->addr[i];
hdr->ethhdr.dest.addr[i] = hdr->dhwaddr.addr[i];
@ -647,7 +653,9 @@ etharp_output(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q)
/* obtain source Ethernet address of the given interface */
srcaddr = (struct eth_addr *)netif->hwaddr;
ethhdr = q->payload;
for (i = 0; i < netif->hwaddr_len; i++) {
i = netif->hwaddr_len;
while(i > 0) {
i--;
ethhdr->dest.addr[i] = dest->addr[i];
ethhdr->src.addr[i] = srcaddr->addr[i];
}
@ -736,7 +744,9 @@ err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q)
/* we have a valid IP->Ethernet address mapping,
* fill in the Ethernet header for the outgoing packet */
struct eth_hdr *ethhdr = q->payload;
for(k = 0; k < netif->hwaddr_len; k++) {
k = netif->hwaddr_len;
while(k > 0) {
k--;
ethhdr->dest.addr[k] = arp_table[i].ethaddr.addr[k];
ethhdr->src.addr[k] = srcaddr->addr[k];
}
@ -795,8 +805,9 @@ err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr)
struct etharp_hdr *hdr = p->payload;
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("etharp_request: sending ARP request.\n"));
hdr->opcode = htons(ARP_REQUEST);
for (k = 0; k < netif->hwaddr_len; k++)
{
k = netif->hwaddr_len;
while(k > 0) {
k--;
hdr->shwaddr.addr[k] = srcaddr->addr[k];
/* the hardware address is what we ask for, in
* a request it is a don't-care value, we use zeroes */
@ -810,8 +821,9 @@ err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr)
hdr->proto = htons(ETHTYPE_IP);
ARPH_PROTOLEN_SET(hdr, sizeof(struct ip_addr));
for (k = 0; k < netif->hwaddr_len; ++k)
{
k = netif->hwaddr_len;
while(k > 0) {
k--;
/* broadcast to all network interfaces on the local network */
hdr->ethhdr.dest.addr[k] = 0xff;
hdr->ethhdr.src.addr[k] = srcaddr->addr[k];