Use enable_irq explicitly in ixgbe driver

kernel/Cargo.lock

@@ -196,7 +196,7 @@ dependencies = [
 [[package]]
 name = "isomorphic_drivers"
 version = "0.1.0"
-source = "git+https://github.com/rcore-os/isomorphic_drivers#642e139b4c4a06a75d9530e9d60a33c514aea060"
+source = "git+https://github.com/rcore-os/isomorphic_drivers#a564ac855887a823dac80529ec4138194583905d"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",

kernel/src/drivers/net/ixgbe.rs

@@ -238,6 +238,8 @@ pub fn ixgbe_init(
         }
     }
     let ixgbe = ixgbe::IXGBEDriver::init(Provider::new(), header, size);
+    ixgbe.enable_irq();
+
     let ethernet_addr = EthernetAddress::from_bytes(&ixgbe.get_mac().as_bytes());
 
     let net_driver = IXGBEDriver {