Integrate irq mode into PROX (support display and command line)

irq mode can be used to show how a core is interrupted by other tasks.
This mode does not handle packets. It only loops reading tsc.
When the difference between two consecutive calls to rdtsc() is high
then it means the core was interrupted.
This task implementes the display, so that we can see a histogram of
interrupts as well as the maximum, per core.
Command line is also supported, through "show irq buckets" (too show
the intervals of each buckets, in micrcoseconds), and the stats
command line (showing the number of items in each buckets and the max)..

Change-Id: I153cc3deaa7b86ae2776ea44e46ef9ecfd116992
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>

1 files changed, 29 insertions, 1 deletions

diff --git a/VNFs/DPPD-PROX/handle_irq.h b/VNFs/DPPD-PROX/handle_irq.h
index 784bf0d6..2399c8d0 100644
--- a/VNFs/DPPD-PROX/handle_irq.h
+++ b/VNFs/DPPD-PROX/handle_irq.h
@@ -17,7 +17,35 @@
 #ifndef _HANDLE_IRQ_H_
 #define _HANDLE_IRQ_H_
 
-struct task_irq;
+#include "task_base.h"
+#include "stats_irq.h"
+
+#define MAX_INDEX	65535 * 16
+
+struct irq_info {
+	uint64_t tsc;
+	uint64_t lat;
+};
+
+struct irq_bucket {
+	uint64_t index;
+	struct irq_info info[MAX_INDEX];
+};
+
+struct task_irq {
+	struct task_base base;
+	uint64_t start_tsc;
+	uint64_t first_tsc;
+	uint64_t tsc;
+	uint64_t max_irq;
+	uint8_t  lcore_id;
+	uint8_t  irq_debug;
+	volatile uint16_t stats_use_lt; /* which lt to use, */
+	volatile uint16_t task_use_lt; /* 0 or 1 depending on which of the 2 result records are used */
+	struct irq_bucket buffer[2];
+	struct irq_rt_stats stats;
+};
+
 struct input;
 
 void task_irq_show_stats(struct task_irq *task_irq, struct input *input);