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authorDave Wallace <dwallacelf@gmail.com>2017-11-09 13:00:34 -0500
committerFlorin Coras <florin.coras@gmail.com>2017-11-09 22:16:52 +0000
commit498b3a56c9b61582b237614193920be610eaca58 (patch)
treeaa6c5ab5dad663ae2af1732eb9e6b1850b2d1486 /src
parentef24d42e717ebee44008bc83229e1cb3e7eeb5ae (diff)
VCL: Set debug output level from env var
Change-Id: Ia99047715ed652eca1aea1e4144e407f9608d59e Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/vcl/vppcom.c94
-rw-r--r--src/vcl/vppcom.h1
2 files changed, 60 insertions, 35 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index d8d7069438a..71d5af0446d 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -41,12 +41,18 @@
#undef vl_printfun
#if (CLIB_DEBUG > 0)
-/* Set VPPCOM_DEBUG 2 for connection debug, 3 for read/write debug output */
-#define VPPCOM_DEBUG 1
+/* Set VPPCOM_DEBUG_INIT 2 for connection debug,
+ * 3 for read/write debug output
+ * or
+ * export VCL_DEBUG=<#> to set dynamically.
+ */
+#define VPPCOM_DEBUG_INIT 1
#else
-#define VPPCOM_DEBUG 0
+#define VPPCOM_DEBUG_INIT 0
#endif
+#define VPPCOM_DEBUG vcm->debug
+
/*
* VPPCOM Private definitions and functions.
*/
@@ -141,6 +147,7 @@ typedef struct vppcom_cfg_t_
typedef struct vppcom_main_t_
{
u8 init;
+ u32 debug;
u32 *client_session_index_fifo;
volatile u32 bind_session_index;
int main_cpu;
@@ -185,7 +192,10 @@ typedef struct vppcom_main_t_
* Do not access it directly -- use vcm which will point to
* the heap allocated copy after init.
*/
-static vppcom_main_t _vppcom_main = {.my_client_index = ~0 };
+static vppcom_main_t _vppcom_main = {
+ .debug = VPPCOM_DEBUG_INIT,
+ .my_client_index = ~0
+};
static vppcom_main_t *vcm = &_vppcom_main;
@@ -1798,6 +1808,22 @@ vppcom_app_create (char *app_name)
vcm->init = 1;
vppcom_cfg_init (vcl_cfg);
+ env_var_str = getenv (VPPCOM_ENV_DEBUG);
+ if (env_var_str)
+ {
+ u32 tmp;
+ if (sscanf (env_var_str, "%u", &tmp) != 1)
+ clib_warning ("[%d] Invalid debug level specified in "
+ "the environment variable "
+ VPPCOM_ENV_DEBUG
+ " (%s)!\n", getpid (), env_var_str);
+ else
+ {
+ vcm->debug = tmp;
+ clib_warning ("[%d] configured debug level (%u) from "
+ VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug);
+ }
+ }
conf_fname = getenv (VPPCOM_ENV_CONF);
if (!conf_fname)
{
@@ -2453,7 +2479,7 @@ vppcom_session_peek (uint32_t session_index, void *buf, int n)
static inline int
vppcom_session_read_ready (session_t * session, u32 session_index)
{
- svm_fifo_t *rx_fifo;
+ svm_fifo_t *rx_fifo = 0;
int ready = 0;
/* Assumes caller has acquired spinlock: vcm->sessions_lockp */
@@ -2776,9 +2802,9 @@ vep_verify_epoll_chain (u32 vep_idx)
session_t *session;
vppcom_epoll_t *vep;
int rv;
- u32 sid;
+ u32 sid = vep_idx;
- if (VPPCOM_DEBUG < 1)
+ if (VPPCOM_DEBUG <= 1)
return;
/* Assumes caller has acquired spinlock: vcm->sessions_lockp */
@@ -2794,35 +2820,17 @@ vep_verify_epoll_chain (u32 vep_idx)
vep_idx);
goto done;
}
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n"
- "{\n"
- " is_vep = %u\n"
- " is_vep_session = %u\n"
- " wait_cont_idx = 0x%x (%u)\n"
- "}\n", getpid (),
- vep_idx, session->is_vep, session->is_vep_session,
- session->wait_cont_idx, session->wait_cont_idx);
+ clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n"
+ "{\n"
+ " is_vep = %u\n"
+ " is_vep_session = %u\n"
+ " wait_cont_idx = 0x%x (%u)\n"
+ "}\n", getpid (),
+ vep_idx, session->is_vep, session->is_vep_session,
+ session->wait_cont_idx, session->wait_cont_idx);
do
{
vep = &session->vep;
- if (session->is_vep_session && (VPPCOM_DEBUG > 1))
- {
- clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
- "{\n"
- " next_sid = 0x%x (%u)\n"
- " prev_sid = 0x%x (%u)\n"
- " vep_idx = 0x%x (%u)\n"
- " ev.events = 0x%x\n"
- " ev.data.u64 = 0x%llx\n"
- " et_mask = 0x%x\n"
- "}\n",
- vep_idx, sid, sid,
- vep->next_sid, vep->next_sid,
- vep->prev_sid, vep->prev_sid,
- vep->vep_idx, vep->vep_idx,
- vep->ev.events, vep->ev.data.u64, vep->et_mask);
- }
sid = vep->next_sid;
if (sid != ~0)
{
@@ -2845,13 +2853,29 @@ vep_verify_epoll_chain (u32 vep_idx)
clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != "
"vep_idx (%u)!", getpid (),
sid, session->vep.vep_idx, vep_idx);
+ if (session->is_vep_session)
+ {
+ clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
+ "{\n"
+ " next_sid = 0x%x (%u)\n"
+ " prev_sid = 0x%x (%u)\n"
+ " vep_idx = 0x%x (%u)\n"
+ " ev.events = 0x%x\n"
+ " ev.data.u64 = 0x%llx\n"
+ " et_mask = 0x%x\n"
+ "}\n",
+ vep_idx, sid, sid,
+ vep->next_sid, vep->next_sid,
+ vep->prev_sid, vep->prev_sid,
+ vep->vep_idx, vep->vep_idx,
+ vep->ev.events, vep->ev.data.u64, vep->et_mask);
+ }
}
}
while (sid != ~0);
done:
- if (VPPCOM_DEBUG > 1)
- clib_warning ("[%d] vep_idx (%u): Dump complete!", getpid (), vep_idx);
+ clib_warning ("[%d] vep_idx (%u): Dump complete!\n", getpid (), vep_idx);
}
int
diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index a20ff14a32e..5d22b1a3bd7 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -27,6 +27,7 @@
#define VPPCOM_VRF_DEFAULT 0
#define VPPCOM_CONF_DEFAULT "/etc/vpp/vcl.conf"
#define VPPCOM_ENV_CONF "VCL_CONFIG"
+#define VPPCOM_ENV_DEBUG "VCL_DEBUG"
#define VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "VCL_APP_PROXY_TRANSPORT_TCP"
#define VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "VCL_APP_PROXY_TRANSPORT_UDP"
#define VPPCOM_ENV_APP_NAMESPACE_ID "VCL_APP_NAMESPACE_ID"