Bananymous
6ebd3a8aca
There was a lot of stuff wrong with this driver and it was only getting speeds of ~2.5 MB/s. Now 4K blocks get ~17 MB/s which is not good but definitely better. I'm pretty sure the issue is qemu's emulation as 85% of time is spent between sending the command and it to complete. Large blocks are now supported too, qemu with block size 1M gets around 600 MB/s read speeds.
47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
#pragma once
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#include <BAN/Array.h>
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#include <BAN/RefPtr.h>
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#include <kernel/Interruptable.h>
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#include <kernel/Memory/DMARegion.h>
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#include <kernel/PCI.h>
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#include <kernel/Storage/ATA/AHCI/Definitions.h>
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namespace Kernel
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{
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class AHCIController final : public BAN::RefCounted<AHCIController>, public Interruptable
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{
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BAN_NON_COPYABLE(AHCIController);
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BAN_NON_MOVABLE(AHCIController);
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public:
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static BAN::ErrorOr<BAN::RefPtr<AHCIController>> create(PCI::Device&);
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~AHCIController();
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virtual void handle_irq() override;
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bool supports_64bit() const { return m_supports_64bit; }
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uint32_t command_slot_count() const { return m_command_slot_count; }
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private:
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AHCIController(PCI::Device& pci_device)
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: m_pci_device(pci_device)
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{ }
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BAN::ErrorOr<void> initialize();
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BAN::Optional<AHCIPortType> check_port_type(volatile HBAPortMemorySpace&);
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private:
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PCI::Device& m_pci_device;
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BAN::UniqPtr<PCI::BarRegion> m_abar;
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BAN::Array<AHCIDevice*, 32> m_devices;
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bool m_supports_64bit { false };
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uint32_t m_command_slot_count { 0 };
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};
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}
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