GSoC/kolibrios-nvme-driver
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refactor: use named constants for queue allocation

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This commit is contained in:
Abdur-Rahman Mansoor 2024-08-06 11:51:57 -04:00
parent 4cbae17ecf
commit b2b0ca743d
1 changed files with 6 additions and 7 deletions
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13
drivers/nvme/nvme.asm
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@ -701,13 +701,12 @@ proc nvme_init stdcall, pci:dword
DEBUGF DBG_INFO, "nvme%u: OK... memory page size supported\n", [esi + pcidev.num]
; Configure IOSQES, IOCQES, AMS, MPS, CSS
and dword [edi + NVME_MMIO.CC], not (CC_AMS or CC_MPS or CC_CSS or CC_IOSQES or CC_IOCQES)
mov eax, dword [edi + NVME_MMIO.CC]
; CSS = 0 (NVM Command Set)
; AMS = 0 (Round Robin)
; MPS = 0 (4KiB Pages)
; IOSQES = 6 (64B)
; IOCQES = 4 (16B)
xor eax, eax
or eax, (4 shl 20) or (6 shl 16)
mov dword [edi + NVME_MMIO.CC], eax
@ -730,26 +729,26 @@ proc nvme_init stdcall, pci:dword
xor ebx, ebx
.init_queues:
invoke AllocPages, 2
invoke AllocPages, QUEUE_ALLOC_SIZE / PAGE_SIZE
test eax, eax
jz .exit_fail
or eax, PG_SW+PG_NOCACHE
mov esi, eax
invoke KernelAlloc, 0x2000
invoke KernelAlloc, QUEUE_ALLOC_SIZE
test eax, eax
jz .exit_fail
mov dword [edi + ebx + NVM_QUEUE_ENTRY.cq_ptr], eax
push ebx
mov ebx, eax
mov eax, esi
mov ecx, 2
mov ecx, QUEUE_ALLOC_SIZE / PAGE_SIZE
invoke CommitPages
pop ebx
mov eax, dword [edi + ebx + NVM_QUEUE_ENTRY.cq_ptr]
mov edx, eax
add eax, 0x1000
add eax, CQ_ALLOC_SIZE
mov dword [edi + ebx + NVM_QUEUE_ENTRY.sq_ptr], eax
stdcall memsetdz, edx, 0x2000 / 4
stdcall memsetdz, edx, QUEUE_ALLOC_SIZE / 4
; Initialize command entries
invoke KernelAlloc, sizeof.NVMQCMD * CQ_ENTRIES