mirror of
https://github.com/RGBCube/serenity
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30d3f2789e
When scanning for network adapters, we give each driver a chance to claim the PCI device and whoever claims it first gets to keep it. Before this patch, the driver API returned a LockRefPtr<AdapterType>, which made it impossible to propagate errors that occurred during detection and/or initialization. This patch changes the API so that errors can bubble all the way out the PCI enumeration in NetworkingManagement::initialize() where we perform all the network adapter auto-detection on boot. When we eventually start to support hot-plugging network adapter in the future, it will be even more important to propagate errors instead of swallowing them. Importantly, before this patch, some errors were "handled" by panicking the kernel. This is no longer the case. 7 FIXMEs were killed in the making of this commit. :^)
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/OwnPtr.h>
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#include <Kernel/Bus/PCI/Access.h>
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#include <Kernel/Bus/PCI/Device.h>
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#include <Kernel/IOWindow.h>
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#include <Kernel/Interrupts/IRQHandler.h>
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#include <Kernel/Net/Intel/E1000NetworkAdapter.h>
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#include <Kernel/Net/NetworkAdapter.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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class E1000ENetworkAdapter final
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: public E1000NetworkAdapter {
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public:
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static ErrorOr<LockRefPtr<E1000ENetworkAdapter>> try_to_initialize(PCI::DeviceIdentifier const&);
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virtual bool initialize() override;
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virtual ~E1000ENetworkAdapter() override;
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virtual StringView purpose() const override { return class_name(); }
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private:
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E1000ENetworkAdapter(PCI::Address, u8 irq, NonnullOwnPtr<IOWindow> registers_io_window, NonnullOwnPtr<KString>);
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virtual StringView class_name() const override { return "E1000ENetworkAdapter"sv; }
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virtual void detect_eeprom() override;
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virtual u32 read_eeprom(u8 address) override;
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};
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}
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