[Silabs] Adds fix for stalling LwIP SLAAC process (#27263)

* Adds fix to invoke SLAAC when LwIP is not invoking it * Ports LwIP SLAAC fix for SoC * Added logs and refactored it
project-chip · Feb 19, 2024 · 4154083 · 4154083
1 parent decf77b
commit 4154083
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Showing 2 changed files with 22 additions and 2 deletions.
diff --git a/examples/platform/silabs/SiWx917/SiWx917/rsi_if.c b/examples/platform/silabs/SiWx917/SiWx917/rsi_if.c
@@ -44,6 +44,7 @@
 #include "rsi_wlan_config.h"
 
 #include "dhcp_client.h"
+#include "lwip/nd6.h"
 #include "wfx_rsi.h"
 
 /* Rsi driver Task will use as its stack */
@@ -558,7 +559,16 @@ void wfx_rsi_task(void * arg)
                     hasNotifiedIPV4 = false;
                 }
 #endif /* CHIP_DEVICE_CONFIG_ENABLE_IPV4 */
-                /* Checks if the assigned IPv6 address is preferred by evaluating
+                /*
+                 * Checks if the IPv6 event has been notified, if not invoke the nd6_tmr,
+                 * which starts the duplicate address detectation.
+                 */
+                if (!hasNotifiedIPV6)
+                {
+                    nd6_tmr();
+                }
+                /*
+                 * Checks if the assigned IPv6 address is preferred by evaluating
                  * the first block of IPv6 address ( block 0)
                  */
                 if ((ip6_addr_ispreferred(netif_ip6_addr_state(sta_netif, 0))) && !hasNotifiedIPV6)

diff --git a/examples/platform/silabs/efr32/rs911x/rsi_if.c b/examples/platform/silabs/efr32/rs911x/rsi_if.c
@@ -50,6 +50,7 @@
 #include "rsi_wlan_config.h"
 
 #include "dhcp_client.h"
+#include "lwip/nd6.h"
 #include "wfx_host_events.h"
 #include "wfx_rsi.h"
 
@@ -624,7 +625,16 @@ void wfx_rsi_task(void * arg)
                     hasNotifiedIPV4 = false;
                 }
 #endif /* CHIP_DEVICE_CONFIG_ENABLE_IPV4 */
-                /* Checks if the assigned IPv6 address is preferred by evaluating
+                /*
+                 * Checks if the IPv6 event has been notified, if not invoke the nd6_tmr,
+                 * which starts the duplicate address detectation.
+                 */
+                if (!hasNotifiedIPV6)
+                {
+                    nd6_tmr();
+                }
+                /*
+                 * Checks if the assigned IPv6 address is preferred by evaluating
                  * the first block of IPv6 address ( block 0)
                  */
                 if ((ip6_addr_ispreferred(netif_ip6_addr_state(sta_netif, 0))) && !hasNotifiedIPV6)