dpdk: tx/rx burst function description refactor

DPDK provides two new APIs to retrieve information about the Tx/Rx
packet burst mode:
rte_eth_tx_burst_mode_get
rte_eth_rx_burst_mode_get

This patch leverages these two APIs to describe the tx/rx mode.

Currently, Intel X710/E810 and Mellanox Mlx5 support the new APIs.
For NICs that don't support the new APIs, still use the original way
to print their tx/rx function name

Type: refactor

Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: Ibe47f5debe3b3f17f462fbf9834394e22845cc08

diff --git a/src/plugins/dpdk/device/format.c b/src/plugins/dpdk/device/format.c
index 0db58d8..693f92d 100644 (file)
--- a/src/plugins/dpdk/device/format.c
+++ b/src/plugins/dpdk/device/format.c
@@ -568,6 +568,7 @@ format_dpdk_device (u8 * s, va_list * args)
   u32 indent = format_get_indent (s);
   f64 now = vlib_time_now (dm->vlib_main);
   struct rte_eth_dev_info di;
+  struct rte_eth_burst_mode mode;
 
   dpdk_update_counters (xd, now);
   dpdk_update_link_state (xd, now);
@@ -666,12 +667,36 @@ format_dpdk_device (u8 * s, va_list * args)
                  format_dpdk_rss_hf_name, di.flow_type_rss_offloads,
                  format_white_space, indent + 2,
                  format_dpdk_rss_hf_name, rss_conf.rss_hf);
-      s = format (s, "%Utx burst function: %s\n",
-                 format_white_space, indent + 2,
-                 ptr2sname (rte_eth_devices[xd->port_id].tx_pkt_burst));
-      s = format (s, "%Urx burst function: %s\n",
-                 format_white_space, indent + 2,
-                 ptr2sname (rte_eth_devices[xd->port_id].rx_pkt_burst));
+
+      if (rte_eth_tx_burst_mode_get (xd->port_id, 0, &mode) == 0)
+       {
+         s = format (s, "%Utx burst mode: %s%s\n",
+                     format_white_space, indent + 2,
+                     mode.info,
+                     mode.flags & RTE_ETH_BURST_FLAG_PER_QUEUE ?
+                     " (per queue)" : "");
+       }
+      else
+       {
+         s = format (s, "%Utx burst function: %s\n",
+                     format_white_space, indent + 2,
+                     ptr2sname (rte_eth_devices[xd->port_id].tx_pkt_burst));
+       }
+
+      if (rte_eth_rx_burst_mode_get (xd->port_id, 0, &mode) == 0)
+       {
+         s = format (s, "%Urx burst mode: %s%s\n",
+                     format_white_space, indent + 2,
+                     mode.info,
+                     mode.flags & RTE_ETH_BURST_FLAG_PER_QUEUE ?
+                     " (per queue)" : "");
+       }
+      else
+       {
+         s = format (s, "%Urx burst function: %s\n",
+                     format_white_space, indent + 2,
+                     ptr2sname (rte_eth_devices[xd->port_id].rx_pkt_burst));
+       }
     }
 
   /* $$$ MIB counters  */