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net: Allow filtering on debug traces in the net subsystem

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Add several levels of DEBUG prints so that you can limit the noise to
the severety of your problem.

DEBUG_LL_STATE = Link local state machine changes
DEBUG_DEV_PKT = Packets or info directed to the device
DEBUG_NET_PKT = Packets on info on the network at large
DEBUG_INT_STATE = Internal network state changes

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger 2012-05-23 08:01:04 +00:00
parent c697576262
commit 4ef8d53caa
8 changed files with 68 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

9
net/arp.c
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@ -55,7 +55,7 @@ void arp_raw_request(IPaddr_t sourceIP, const uchar *targetEther,
struct arp_hdr *arp;
int eth_hdr_size;
debug("ARP broadcast %d\n", NetArpWaitTry);
debug_cond(DEBUG_DEV_PKT, "ARP broadcast %d\n", NetArpWaitTry);
pkt = NetArpTxPacket;
@ -135,7 +135,7 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
* address; so if we receive such a packet, we set
* the server ethernet address
*/
debug("Got ARP\n");
debug_cond(DEBUG_NET_PKT, "Got ARP\n");
arp = (struct arp_hdr *)ip;
if (len < ARP_HDR_SIZE) {
@ -160,7 +160,7 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
switch (ntohs(arp->ar_op)) {
case ARPOP_REQUEST:
/* reply with our IP address */
debug("Got ARP REQUEST, return our IP\n");
debug_cond(DEBUG_DEV_PKT, "Got ARP REQUEST, return our IP\n");
pkt = (uchar *)et;
eth_hdr_size = net_update_ether(et, et->et_src, PROT_ARP);
pkt += eth_hdr_size;
@ -203,7 +203,8 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
/* matched waiting packet's address */
if (reply_ip_addr == NetArpWaitReplyIP) {
debug("Got ARP REPLY, set eth addr (%pM)\n",
debug_cond(DEBUG_DEV_PKT,
"Got ARP REPLY, set eth addr (%pM)\n",
arp->ar_data);
/* save address for later use */