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nvme: hook to block abstraction and fixes

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Matheus
2023-02-10 01:07:48 -03:00
parent 9d2d5d9fd6
commit d12f5d2144
1 changed files with 43 additions and 16 deletions
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src/sys/block/nvme.c
+43 -16
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@@ -15,6 +15,7 @@
#include <arch/idt.h>
#include <arch/cls.h>
#include <arch/isr.h>
#include <kernel/block.h>
#define CAP_QUEUESIZE 0xFFFF
#define CAP_MINPAGESIZE 0xF000000
@@ -255,11 +256,13 @@ static ctlrinfo_t** controllers;
void nvme_irq(){
controllers[0]->adminqueue.comp.hasdata = true;
event_signal(&controllers[0]->adminqueue.update, false);
if(controllers[0]->ioqueue){
controllers[0]->ioqueue->comp.hasdata = true;
event_signal(&controllers[0]->ioqueue->update, false);
for(int ctlr = 0; ctlr < controllercount; ++ctlr){
controllers[ctlr]->adminqueue.comp.hasdata = true;
event_signal(&controllers[ctlr]->adminqueue.update, false);
if(controllers[ctlr]->ioqueue){
controllers[ctlr]->ioqueue->comp.hasdata = true;
event_signal(&controllers[ctlr]->ioqueue->update, false);
}
}
apic_eoi();
@@ -292,10 +295,10 @@ __attribute__((noreturn)) static void nvme_workerthread(){
userentries[pair]->sub.d0.cmdid = pair;
subqentry* targentry = &subq[queuepair->sub.idx++];
queuepair->sub.idx %= queuepair->sub.entrycount;
subqentry* targentry = &subq[queuepair->sub.idx++];
queuepair->sub.idx %= queuepair->sub.entrycount;
*targentry = userentries[pair]->sub;
*subqdoorbell = queuepair->sub.idx;
@@ -311,14 +314,16 @@ __attribute__((noreturn)) static void nvme_workerthread(){
while(1){
if(compq[queuepair->comp.idx].phase == 0)
break;
break;
int pair = compq[queuepair->comp.idx].cmdid;
userentries[pair]->comp = compq[queuepair->comp.idx];
event_signal(&userentries[pair]->completion, false);
userentries[pair] = NULL;
++queuepair->comp.idx;
queuepair->comp.idx %= queuepair->comp.entrycount;
@@ -417,9 +422,11 @@ int nvme_createiocompqueue(ctlrinfo_t* ctlr, size_t size, int id, int intvec, in
pair.sub.dataptr[0] = (uint64_t)addr;
pair.sub.command[0] = id | (entrycount << 16);
pair.sub.command[0] = id | ((entrycount-1) << 16);
pair.sub.command[1] = IOQUEUE_FLAG_CONTIGUOUS | flags | (intvec << 16);
memset(MAKEHHDM(addr), 0, size);
dispatchandwait(&pair, &ctlr->adminqueue);
if(pair.comp.status)
@@ -439,7 +446,7 @@ int nvme_createiosubqueue(ctlrinfo_t* ctlr, size_t size, int id, int flags, int
pair.sub.d0.opcode = OPCODE_CREATEIOSUBQUEUE;
size_t psize = size / PAGE_SIZE + ((size % PAGE_SIZE) ? 1 : 0);
size_t entrycount = size / sizeof(compqentry);
size_t entrycount = size / sizeof(subqentry);
void* addr = pmm_alloc(psize);
@@ -448,9 +455,11 @@ int nvme_createiosubqueue(ctlrinfo_t* ctlr, size_t size, int id, int flags, int
pair.sub.dataptr[0] = (uint64_t)addr;
pair.sub.command[0] = id | (entrycount << 16);
pair.sub.command[0] = id | ((entrycount-1) << 16);
pair.sub.command[1] = IOQUEUE_FLAG_CONTIGUOUS | flags | (compid << 16);
memset(MAKEHHDM(addr), 0, size);
dispatchandwait(&pair, &ctlr->adminqueue);
if(pair.comp.status)
@@ -458,7 +467,6 @@ int nvme_createiosubqueue(ctlrinfo_t* ctlr, size_t size, int id, int flags, int
else
*ret_addr = MAKEHHDM(addr);
return pair.comp.status ? EIO : 0;
}
@@ -540,6 +548,12 @@ static void nvme_newworkerthread(ctlrinfo_t* ctlr, queuepair_t* qpair){
}
static blockcalls_t calls = {
.read = nvme_read
};
static int blockid;
static void nvme_initns(ctlrinfo_t* ctlr, uint32_t nsid){
namespaceid_t* identify = alloc(4096);
namespace_t* ns = alloc(sizeof(namespace_t));
@@ -560,8 +574,21 @@ static void nvme_initns(ctlrinfo_t* ctlr, uint32_t nsid){
printf("ns %d: lbaformat %d, capacity -> %d blocks, block size -> %d bytes\n", nsid, lbaformat, identify->lbacapacity, blocksize);
blockdesc_t desc;
desc.blocksize = blocksize;
desc.capacity = ns->capacity;
desc.internal = ns;
desc.calls = calls;
char name[20];
sprintf(name, "nvme%d", blockid);
++blockid;
__assert(block_registernew(&desc, name) == 0);
free(identify);
}