Merge branch 'bugfix/fix_udp_tx_performance_issue_v4.1' into 'release/v4.1'

lw-ip: fix udp tx packet loss issue (backport v4.1)

See merge request espressif/esp-idf!10018

components/lwip/Kconfig

@@ -587,6 +587,20 @@ menu "LWIP"
             This would in turn fail the configuration for the whole link.
             If your modem is not responding correctly to PPP Phase Network, try to disable IPV6 support.
 
+    config LWIP_IPV6_MEMP_NUM_ND6_QUEUE
+        int "Max number of IPv6 packets to queue during MAC resolution"
+        range 3 20
+        default 3
+        help
+            Config max number of IPv6 packets to queue during MAC resolution.
+
+    config LWIP_IPV6_ND6_NUM_NEIGHBORS
+        int "Max number of entries in IPv6 neighbor cache"
+        range 3 10
+        default 5
+        help
+            Config max number of entries in IPv6 neighbor cache
+
     config LWIP_PPP_NOTIFY_PHASE_SUPPORT
         bool "Enable Notify Phase Callback"
         depends on LWIP_PPP_SUPPORT

components/lwip/lwip

@@ -1 +1 @@
-Subproject commit 5b2072ebb82e606ed1d0ae1345742716d6499e7e
+Subproject commit 80d6d19a929c6db577fc44a47fdb4acffdd68933

components/lwip/port/esp32/include/lwipopts.h

@@ -708,6 +708,16 @@
  */
 #define LWIP_IPV6                       1
 
+/**
+ * MEMP_NUM_ND6_QUEUE: Max number of IPv6 packets to queue during MAC resolution.
+ */
+#define MEMP_NUM_ND6_QUEUE              CONFIG_LWIP_IPV6_MEMP_NUM_ND6_QUEUE
+
+/**
+ * LWIP_ND6_NUM_NEIGHBORS: Number of entries in IPv6 neighbor cache
+ */
+#define LWIP_ND6_NUM_NEIGHBORS          CONFIG_LWIP_IPV6_ND6_NUM_NEIGHBORS
+
 /*
    ---------------------------------------
    ---------- Hook options ---------------