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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
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5
include/net.h
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@@ -19,6 +19,10 @@
#include <asm/cache.h>
#include <asm/byteorder.h> /* for nton* / ntoh* stuff */
#define DEBUG_LL_STATE 0 /* Link local state machine changes */
#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */
#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */
#define DEBUG_INT_STATE 0 /* Internal network state changes */
/*
* The number of receive packet buffers, and the required packet buffer
@@ -480,6 +484,7 @@ static inline void net_set_state(enum net_loop_state state)
{
extern enum net_loop_state net_state;
debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state);
net_state = state;
}