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Kernel: Add MSIx support to NVMe

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Add MSIx support to NVMe. Prefer MSIx over pin-based interrupts as they
are more efficient and all modern hardware support them.
This commit is contained in:
Pankaj Raghav 2023-04-29 22:27:33 +02:00 • committed by Jelle Raaijmakers
parent bfcf7ab3e8
commit 9b3b0531e5
4 changed files with 17 additions and 8 deletions
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4
Kernel/Storage/NVMe/NVMeInterruptQueue.h
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@ -6,16 +6,18 @@
#pragma once
#include <Kernel/Interrupts/PCIIRQHandler.h>
#include <Kernel/Storage/NVMe/NVMeQueue.h>
namespace Kernel {
class NVMeInterruptQueue : public NVMeQueue
, public IRQHandler {
, public PCIIRQHandler {
public:
NVMeInterruptQueue(PCI::Device& device, NonnullOwnPtr<Memory::Region> rw_dma_region, Memory::PhysicalPage const& rw_dma_page, u16 qid, u8 irq, u32 q_depth, OwnPtr<Memory::Region> cq_dma_region, Vector<NonnullRefPtr<Memory::PhysicalPage>> cq_dma_page, OwnPtr<Memory::Region> sq_dma_region, Vector<NonnullRefPtr<Memory::PhysicalPage>> sq_dma_page, Memory::TypedMapping<DoorbellRegister volatile> db_regs);
void submit_sqe(NVMeSubmission& submission) override;
virtual ~NVMeInterruptQueue() override {};
virtual StringView purpose() const override { return "NVMe"sv; };
private:
virtual void complete_current_request(u16 cmdid, u16 status) override;