issue: 4159519 Adding TX interrupt stats

Adding statistics for TX interrupt request and receive.

Signed-off-by: Alexander Grissik <[email protected]>

src/core/dev/hw_queue_tx.cpp

@@ -2025,6 +2025,8 @@ bool hw_queue_tx::request_notification()
             PRINT_DOCA_ERR(hwqtx_logerr, rc, "doca_pe_request_notification");
             return false;
         }
+
+        ++m_hwq_tx_stats.n_tx_interrupt_requests;
     }
 
     m_notification_armed = true;
@@ -2038,6 +2040,8 @@ void hw_queue_tx::clear_notification()
         doca_error_t rc = doca_pe_clear_notification(m_doca_pe.get(), m_notification_handle);
         if (unlikely(DOCA_IS_ERROR(rc))) {
             PRINT_DOCA_ERR(hwqtx_logerr, rc, "doca_pe_clear_notification");
+        } else {
+            ++m_hwq_tx_stats.n_tx_interrupt_received;
         }
     } else {
         hwqtx_logwarn("Clear notification attempt on unarmed PE. hw_queue_tx: %p", this);

src/core/util/xlio_stats.h

@@ -367,6 +367,8 @@ typedef struct {
     uint64_t n_tx_byte_count;
     uint64_t n_tx_tso_pkt_count;
     uint64_t n_tx_tso_byte_count;
+    uint64_t n_tx_interrupt_requests;
+    uint64_t n_tx_interrupt_received;
 } hw_queue_tx_stats_t;
 
 typedef struct {

src/stats/stats_reader.cpp

@@ -352,6 +352,12 @@ void update_delta_hwq_tx_stat(hw_queue_tx_stats_t *p_curr_hwq_tx_stats,
     p_prev_hwq_tx_stats->n_tx_tso_byte_count =
         (p_curr_hwq_tx_stats->n_tx_tso_byte_count - p_prev_hwq_tx_stats->n_tx_tso_byte_count) /
         delay;
+    p_prev_hwq_tx_stats->n_tx_interrupt_received = (p_curr_hwq_tx_stats->n_tx_interrupt_received -
+                                                    p_prev_hwq_tx_stats->n_tx_interrupt_received) /
+        delay;
+    p_prev_hwq_tx_stats->n_tx_interrupt_requests = (p_curr_hwq_tx_stats->n_tx_interrupt_requests -
+                                                    p_prev_hwq_tx_stats->n_tx_interrupt_requests) /
+        delay;
 }
 
 void update_delta_hwq_rx_stat(hw_queue_rx_stats_t *p_curr_hwq_rx_stats,
@@ -519,6 +525,13 @@ void print_ring_stats(ring_instance_block_t *p_ring_inst_arr)
             printf(FORMAT_STATS_32bit, "TX buff in use:", p_ring_stats->n_tx_num_bufs);
             printf(FORMAT_STATS_32bit, "TX ZC buff in use:", p_ring_stats->n_zc_num_bufs);
 
+            if (p_hwq_tx_stats->n_tx_interrupt_requests ||
+                p_hwq_tx_stats->n_tx_interrupt_received) {
+                printf(FORMAT_RING_INTERRUPT,
+                       "TX Interrupts:", p_hwq_tx_stats->n_tx_interrupt_requests,
+                       p_hwq_tx_stats->n_tx_interrupt_received, post_fix);
+            }
+
             if (p_ring_stats->n_tx_dev_mem_allocated) {
                 printf(FORMAT_STATS_32bit,
                        "TX Dev Mem Alloc:", p_ring_stats->n_tx_dev_mem_allocated);