feat(eth): Allow setting the RX task stack size

Default stack size of 2K might not be enough in some cases. Increase the default to safer 4K and allow setting it to custom value.

Author: me-no-dev

libraries/Ethernet/src/ETH.cpp

@@ -130,6 +130,8 @@ ETHClass::ETHClass(uint8_t eth_index)
     ,
     _pin_mcd(-1), _pin_mdio(-1), _pin_power(-1), _pin_rmii_clock(-1)
 #endif /* CONFIG_ETH_USE_ESP32_EMAC */
+    ,
+    _task_stack_size(4096)
 {
 }
 
@@ -141,6 +143,10 @@ bool ETHClass::ethDetachBus(void *bus_pointer) {
   return true;
 }
 
+void ETHClass::setTaskStackSize(size_t size) {
+  _task_stack_size = size;
+}
+
 #if CONFIG_ETH_USE_ESP32_EMAC
 bool ETHClass::begin(eth_phy_type_t type, int32_t phy_addr, int mdc, int mdio, int power, eth_clock_mode_t clock_mode) {
   esp_err_t ret = ESP_OK;
@@ -214,6 +220,7 @@ bool ETHClass::begin(eth_phy_type_t type, int32_t phy_addr, int mdc, int mdio, i
 
   eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
   eth_mac_config.sw_reset_timeout_ms = 1000;
+  eth_mac_config.rx_task_stack_size = _task_stack_size;
 
   esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&mac_config, &eth_mac_config);
   if (mac == NULL) {
@@ -578,6 +585,9 @@ bool ETHClass::beginSPI(
   __unused eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
   __unused eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
 
+  // Set RX Task Stack Size
+  eth_mac_config.rx_task_stack_size = _task_stack_size;
+
   // Update PHY config based on board specific configuration
   phy_config.phy_addr = phy_addr;
   phy_config.reset_gpio_num = _pin_rst;

libraries/Ethernet/src/ETH.h

@@ -153,6 +153,9 @@ class ETHClass : public NetworkInterface {
 
   void end();
 
+  // This function must be called before `begin()`
+  void setTaskStackSize(size_t size);
+
   // ETH Handle APIs
   bool fullDuplex() const;
   uint8_t linkSpeed() const;
@@ -203,6 +206,7 @@ class ETHClass : public NetworkInterface {
   int8_t _pin_power;
   int8_t _pin_rmii_clock;
 #endif /* CONFIG_ETH_USE_ESP32_EMAC */
+  size_t _task_stack_size;
 
   static bool ethDetachBus(void *bus_pointer);
   bool beginSPI(