esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_HARDWARE

esp_idf_sys

Constant esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_HARDWARE 

Source 
pub const esp_mbedtls_sha512_mode_ESP_MBEDTLS_SHA512_HARDWARE: esp_mbedtls_sha512_mode = 1;