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nvme: software progress reset and namespace list

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Matheus
2023-02-05 15:48:42 -03:00
parent d4f8ed68de
commit 6bf042e417
1 changed files with 50 additions and 14 deletions
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src/sys/block/nvme.c
+50 -14
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@@ -27,9 +27,11 @@
#define CC_AMS_MASK 0b11100000000000
#define OPCODE_IDENTIFY 0x6
#define OPCODE_SETFEATURE 0x9
#define SETFEATURE_DW10_SAVE 0x80000000
#define IDENTIFY_TYPE_CONTROLLER 0
#define IDENTIFY_TYPE_NAMESPACE 1
#define IDENTIFY_TYPE_NAMESPACE 0
#define IDENTIFY_TYPE_CONTROLLER 1
#define IDENTIFY_TYPE_NAMESPACELIST 2
typedef struct{
@@ -152,12 +154,12 @@ typedef struct{
uint16_t pcivendor;
uint16_t pcisubsystemvendor;
uint8_t serialnum[20];
uint8_t modelnum[20];
uint8_t modelnum[40];
uint64_t fwrevision;
uint8_t recommendedburst;
uint8_t ouiid[3];
uint8_t namespacesharing;
uint8_t maxdatatransfer; // power of two
uint8_t maxdatatransfer;
uint16_t controllerid;
uint32_t version;
uint32_t rtd3resumelatency;
@@ -165,7 +167,7 @@ typedef struct{
uint32_t optionalasyncevents;
uint32_t attributes;
uint16_t rrlsupported;
uint64_t reserved;
uint8_t reserved[9];
uint8_t type;
uint64_t fguid[2];
uint16_t crdt[3];
@@ -221,7 +223,7 @@ typedef struct{
uint16_t acwu;
} __attribute__((packed)) controllerid_t;
#define CONTROLLER_TYPE_IO 1
#define ASQSIZE PAGE_SIZE / sizeof(subqentry)
#define ACQSIZE PAGE_SIZE / sizeof(compqentry)
@@ -279,7 +281,7 @@ __attribute__((noreturn)) static void nvme_workerthread(){
*targentry = userentries[pair]->sub;
*subqdoorbell = 1;
*subqdoorbell = queuepair->sub.idx;
}
@@ -308,7 +310,7 @@ __attribute__((noreturn)) static void nvme_workerthread(){
}
if(processed)
*compqdoorbell = processed;
*compqdoorbell = queuepair->comp.idx;
}
@@ -330,6 +332,8 @@ static inline void dispatchandwait(entrypair_t* e, queuepair_t* q){
#define IDENTIFY_SIZE 4096
int nvme_identify(ctlrinfo_t* ctlr, void* buff, int type, int what){
__assert(type < 3); // anything else is not supported atm
@@ -338,7 +342,7 @@ int nvme_identify(ctlrinfo_t* ctlr, void* buff, int type, int what){
memset(&pair, 0, sizeof(entrypair_t));
pair.sub.dataptr[0] = pmm_alloc(1);
pair.sub.dataptr[0] = (uint64_t)pmm_alloc(1);
if(!pair.sub.dataptr[0])
return ENOMEM;
@@ -357,20 +361,41 @@ int nvme_identify(ctlrinfo_t* ctlr, void* buff, int type, int what){
}
#define FEATURE_SOFTWAREPROGRESS 0x80
int nvme_resetsoftwareprogress(ctlrinfo_t* ctlr){
entrypair_t pair;
memset(&pair, 0, sizeof(entrypair_t));
pair.sub.command[0] = FEATURE_SOFTWAREPROGRESS;
pair.sub.d0.opcode = OPCODE_SETFEATURE;
dispatchandwait(&pair, &ctlr->adminqueue);
return pair.comp.status ? EIO : 0;
}
int nvme_identifycontroller(ctlrinfo_t* ctlr, void* buff){
return nvme_identify(ctlr, buff, IDENTIFY_TYPE_CONTROLLER, 0);
}
int nvme_listnamespaces(ctlrinfo_t* ctlr, uint32_t startns, uint32_t* nslist){
return nvme_identify(ctlr, nslist, IDENTIFY_TYPE_NAMESPACELIST, startns);
}
static void nvme_initctlr(pci_enumeration* pci){
void* bar0p = getbarmemaddr(pci->header, 0);
void* bar0p = getbarmemaddr((pci_deviceheader*)pci->header, 0);
volatile nvme_bar0* bar0 = vmm_alloc(10, ARCH_MMU_MAP_READ | ARCH_MMU_MAP_WRITE);
if(!bar0)
_panic("Out of memory", NULL);
if(!vmm_map(bar0p, bar0, 10, ARCH_MMU_MAP_READ | ARCH_MMU_MAP_WRITE))
if(!vmm_map(bar0p, (void*)bar0, 10, ARCH_MMU_MAP_READ | ARCH_MMU_MAP_WRITE))
_panic("Out of memory", NULL);
int maj = bar0->vs >> 16;
@@ -441,8 +466,8 @@ static void nvme_initctlr(pci_enumeration* pci){
if(!adminqueues)
_panic("Out of memory", NULL);
bar0->asq = adminqueues;
bar0->acq = adminqueues + PAGE_SIZE;
bar0->asq = (uint64_t)adminqueues;
bar0->acq = (uint64_t)adminqueues + PAGE_SIZE;
// enable
@@ -493,7 +518,18 @@ static void nvme_initctlr(pci_enumeration* pci){
controllerid_t* ctlrid = alloc(4096);
nvme_identifycontroller(info, ctlrid);
if(!ctlrid)
_panic("Out of memoru!", NULL);
__assert(nvme_identifycontroller(info, ctlrid) == 0);
__assert(ctlrid->type == CONTROLLER_TYPE_IO);
nvme_resetsoftwareprogress(info);
uint32_t nslist[1024];
__assert(nvme_listnamespaces(info, 0, nslist) == 0);
}