mlx5: reading the counters support more type of kernel drivers

Signed-off-by: Hanoh Haim <hhaim@cisco.com>
tawawhite · Feb 10, 2021 · d7fe280 · d7fe280
1 parent 15c782f
commit d7fe280
Show file tree

Hide file tree

Showing 2 changed files with 28 additions and 9 deletions.
diff --git a/src/drivers/trex_driver_mlx5.cpp b/src/drivers/trex_driver_mlx5.cpp
@@ -122,28 +122,45 @@ bool CTRexExtendedDriverBaseMlnx5G::get_extended_stats(CPhyEthIF * _if, CPhyEthI
         tx_discards_phy,
         tx_errors_phy,
         rx_out_of_buffer,
-        tx_pp_missed_interrupt_error,
-        tx_pp_rearm_queue_errors,
-        tx_pp_clock_queue_errors,    
-        tx_pp_timestamp_past_errors,
-        tx_pp_timestamp_future_error, 
-        tx_pp_jitter,
-        tx_pp_wander,
-        tx_pp_sync_lost,
+        //tx_pp_missed_interrupt_error,
+        //tx_pp_rearm_queue_errors,
+        //tx_pp_clock_queue_errors,    
+        //tx_pp_timestamp_past_errors,
+        //tx_pp_timestamp_future_error, 
+        //tx_pp_jitter,
+        //tx_pp_wander,
+        //tx_pp_sync_lost,
         XCOUNT
     };
 
     uint16_t repid = _if->get_repid();
     xstats_struct* xstats_struct = &m_port_xstats[repid];
 
+
+
+
     if ( !xstats_struct->init ) {
         // total_count = COUNT + per queue stats count + XCOUNT
         xstats_struct->total_count = rte_eth_xstats_get(repid, NULL, 0);
         assert(xstats_struct->total_count>=COUNT+XCOUNT);
+        struct rte_eth_xstat_name *xstats_names;
+
+    	xstats_names = (struct rte_eth_xstat_name *)malloc(sizeof(struct rte_eth_xstat_name) * xstats_struct->total_count);
+        assert(xstats_names!= 0);
+        rte_eth_xstats_get_names(repid,xstats_names,xstats_struct->total_count);
+        int i;
+
+        for (i=0; i<xstats_struct->total_count; i++){
+            if (strncmp(xstats_names[i].name,"rx_out_of_buffer",RTE_ETH_XSTATS_NAME_SIZE) == 0) { 
+                xstats_struct->last_offset = xstats_struct->total_count - 1 - i;
+                break;
+            }
+        }
+        free(xstats_names);
     }
 
     struct rte_eth_xstat xstats_array[xstats_struct->total_count];
-    struct rte_eth_xstat *xstats = &xstats_array[xstats_struct->total_count - XCOUNT];
+    struct rte_eth_xstat *xstats = &xstats_array[xstats_struct->total_count - XCOUNT - xstats_struct->last_offset];
     struct rte_eth_stats *prev_stats = &stats->m_prev_stats;
 
     /* fetch stats */

diff --git a/src/drivers/trex_driver_mlx5.h b/src/drivers/trex_driver_mlx5.h
@@ -69,6 +69,8 @@ class CTRexExtendedDriverBaseMlnx5G : public CTRexExtendedDriverBase {
     struct xstats_struct {
         uint16_t total_count;
         bool init;
+
+        uint16_t last_offset;
     };
     xstats_struct m_port_xstats[TREX_MAX_PORTS];
 };