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NVMe: Use an explicit Queue type instead of using an Optional irq

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Add an explicit QueueType enum which could be used to create a poll or
an interrupt queue. This is better than passing an Optional<irq>.

This refactoring is in preparation for adding MSIx support to NVMe.
This commit is contained in:
Pankaj Raghav 2023-04-21 13:50:57 +02:00 • committed by Jelle Raaijmakers
parent feb48cbc7c
commit 693e3419b7
4 changed files with 20 additions and 14 deletions
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7
Kernel/Storage/NVMe/NVMeQueue.h
View file

@ -26,6 +26,11 @@ struct DoorbellRegister {
u32 cq_head;
};
enum class QueueType {
Polled,
IRQ
};
class AsyncBlockDeviceRequest;
struct NVMeIO {
@ -36,7 +41,7 @@ struct NVMeIO {
class NVMeQueue : public AtomicRefCounted<NVMeQueue> {
public:
static ErrorOr<NonnullLockRefPtr<NVMeQueue>> try_create(u16 qid, Optional<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);
static ErrorOr<NonnullLockRefPtr<NVMeQueue>> try_create(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, QueueType queue_type);
bool is_admin_queue() { return m_admin_queue; };
u16 submit_sync_sqe(NVMeSubmission&);
void read(AsyncBlockDeviceRequest& request, u16 nsid, u64 index, u32 count);