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sdnvme: add dmaflush() instructions, move to port/

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This commit is contained in:
cinap_lenrek 2022-07-03 11:35:20 +00:00
parent c2c397422f
commit e39d924907
1 changed files with 17 additions and 8 deletions
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25
sys/src/9/pc/sdnvme.c → sys/src/9/port/sdnvme.c
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@ -135,6 +135,7 @@ qcmd(WS *ws, Ctlr *ctlr, int adm, u32int opc, u32int nsid, void *mptr, void *dat
e[5] = 0;
}
if(len > 0){
dmaflush(1, data, len);
pa = PCIWADDR(data);
e[6] = pa;
e[7] = pa>>32;
@ -173,6 +174,7 @@ nvmeintr(Ureg *, void *arg)
phaseshift = 16 - cq->shift;
for(;;){
e = &cq->base[(cq->head & cq->mask)<<2];
dmaflush(0, e, 32);
if(((e[3] ^ (cq->head << phaseshift)) & 0x10000) == 0)
break;
@ -204,11 +206,12 @@ wdone(void *arg)
}
static u32int
wcmd(WS *ws)
wcmd(WS *ws, u32int *e)
{
SQ *sq = ws->queue;
Ctlr *ctlr = sq->ctlr;
if(e != nil) dmaflush(1, e, 64);
coherence();
ctlr->reg[DBell + ((sq-ctlr->sq)*2+0 << ctlr->dstrd)] = sq->tail & sq->mask;
if(sq > ctlr->sq) {
@ -263,11 +266,12 @@ nvmebio(SDunit *u, int lun, int write, void *a, long count, uvlong lba)
e[13] = (count>n)<<6; /* sequential request */
e[14] = 0;
e[15] = 0;
checkstatus(wcmd(&ws), write ? "write" : "read");
checkstatus(wcmd(&ws, e), write ? "write" : "read");
p += n*s;
count -= n;
lba += n;
}
if(!write) dmaflush(0, a, p - (uchar*)a);
return p - (uchar*)a;
}
@ -313,10 +317,11 @@ nvmeonline(SDunit *u)
e = qcmd(&ws, ctlr, 1, 0x06, ctlr->nsid[u->subno], nil, info, 0x1000);
e[10] = 0; // identify namespace
if(wcmd(&ws) != 0){
if(wcmd(&ws, e) != 0){
free(info);
return 0;
}
dmaflush(0, info, 0x1000);
p = info;
u->sectors = p[0] | p[1]<<8 | p[2]<<16 | p[3]<<24
| (u64int)p[4]<<32
@ -405,7 +410,7 @@ setupqueues(Ctlr *ctlr)
e = qcmd(&ws, ctlr, 1, 0x05, 0, nil, cq->base, 1<<lgsize);
e[10] = (cq - ctlr->cq) | cq->mask<<16;
e[11] = 3; /* IEN | PC */
checkstatus(wcmd(&ws), "create completion queue");
checkstatus(wcmd(&ws, e), "create completion queue");
st = 0;
@ -416,8 +421,7 @@ setupqueues(Ctlr *ctlr)
e = qcmd(&ws, ctlr, 1, 0x01, 0, nil, sq->base, 0x1000);
e[10] = i | sq->mask<<16;
e[11] = (cq - ctlr->cq)<<16 | 1; /* CQID<<16 | PC */
st = wcmd(&ws);
st = wcmd(&ws, e);
if(st != 0){
free(sq->base);
free(sq->wait);
@ -451,11 +455,14 @@ identify(Ctlr *ctlr)
e = qcmd(&ws, ctlr, 1, 0x06, 0, nil, ctlr->ident, 0x1000);
e[10] = 1; // identify controller
checkstatus(wcmd(&ws), "identify controller");
checkstatus(wcmd(&ws, e), "identify controller");
dmaflush(0, ctlr->ident, 0x1000);
e = qcmd(&ws, ctlr, 1, 0x06, 0, nil, ctlr->nsid, 0x1000);
e[10] = 2; // namespace list
if(wcmd(&ws) != 0)
if(wcmd(&ws, e) == 0)
dmaflush(0, ctlr->nsid, 0x1000);
else
ctlr->nsid[0] = 1; /* assume namespace #1 */
ctlr->nnsid = 0;
@ -532,10 +539,12 @@ nvmeenable(SDev *sd)
}
pa = PCIWADDR(cqalloc(ctlr, &ctlr->cq[0], ctlr->mpsshift));
dmaflush(1, ctlr->cq[0].base, 1<<ctlr->mpsshift);
ctlr->reg[ACQBase0] = pa;
ctlr->reg[ACQBase1] = pa>>32;
pa = PCIWADDR(sqalloc(ctlr, &ctlr->sq[0], ctlr->mpsshift));
dmaflush(1, ctlr->sq[0].base, 1<<ctlr->mpsshift);
ctlr->reg[ASQBase0] = pa;
ctlr->reg[ASQBase1] = pa>>32;