ref: 675ebaeca3c38d2684b249faae1fc24c5c2b6e0e
dir: /sys/src/9/pc/sdiahci.c/
/* * intel/amd ahci sata controller * copyright © 2007-10 coraid, inc. */ #include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "io.h" #include "../port/error.h" #include "../port/sd.h" #include <fis.h> #include "ahci.h" #include "../port/led.h" #pragma varargck type "T" int #define dprint(...) if(debug) print(__VA_ARGS__); else USED(debug) #define idprint(...) if(prid) print(__VA_ARGS__); else USED(prid) #define aprint(...) if(datapi) print(__VA_ARGS__); else USED(datapi) #define ledprint(...) if(dled) print(__VA_ARGS__); else USED(dled) #define Pciwaddrh(a) 0 #define Tname(c) tname[(c)->type] #define Ticks MACHP(0)->ticks #define MS2TK(t) (((ulong)(t)*HZ)/1000) enum { NCtlr = 4, NCtlrdrv= 32, NDrive = NCtlr*NCtlrdrv, Fahdrs = 4, Read = 0, Write, Eesb = 1<<0, /* must have (Eesb & Emtype) == 0 */ }; /* pci space configuration */ enum { Pmap = 0x90, Ppcs = 0x91, Prev = 0xa8, }; enum { Tesb, Tich, Tsb600, Tjmicron, Tahci, }; static char *tname[] = { "63xxesb", "ich", "sb600", "jmicron", "ahci", }; enum { Dnull, Dmissing, Dnew, Dready, Derror, Dreset, Doffline, Dportreset, Dlast, }; static char *diskstates[Dlast] = { "null", "missing", "new", "ready", "error", "reset", "offline", "portreset", }; extern SDifc sdiahciifc; typedef struct Ctlr Ctlr; enum { DMautoneg, DMsatai, DMsataii, DMsataiii, DMlast, }; static char *modes[DMlast] = { "auto", "satai", "sataii", "sataiii", }; typedef struct Htab Htab; struct Htab { ulong bit; char *name; }; typedef struct { Lock; Ctlr *ctlr; SDunit *unit; char name[10]; Aport *port; Aportm portm; Aportc portc; /* redundant ptr to port and portm. */ Ledport; uchar drivechange; uchar nodma; uchar state; uvlong sectors; uint secsize; ulong totick; ulong lastseen; uint wait; uchar mode; uchar active; char serial[20+1]; char firmware[8+1]; char model[40+1]; uvlong wwn; ushort info[0x200]; /* * ahci allows non-sequential ports. * to avoid this hassle, we let * driveno ctlr*NCtlrdrv + unit * portno nth available port */ uint driveno; uint portno; } Drive; struct Ctlr { Lock; int type; int enabled; SDev *sdev; Pcidev *pci; uchar *mmio; ulong *lmmio; Ahba *hba; Aenc; uint enctype; Drive rawdrive[NCtlrdrv]; Drive* drive[NCtlrdrv]; int ndrive; uint missirq; }; static Ctlr iactlr[NCtlr]; static SDev sdevs[NCtlr]; static int niactlr; static Drive *iadrive[NDrive]; static int niadrive; static int debug; static int prid = 1; static int datapi; static int dled; static char stab[] = { [0] 'i', 'm', [8] 't', 'c', 'p', 'e', [16] 'N', 'I', 'W', 'B', 'D', 'C', 'H', 'S', 'T', 'F', 'X' }; static void serrstr(ulong r, char *s, char *e) { int i; e -= 3; for(i = 0; i < nelem(stab) && s < e; i++) if(r & (1<<i) && stab[i]){ *s++ = stab[i]; if(SerrBad & (1<<i)) *s++ = '*'; } *s = 0; } static char ntab[] = "0123456789abcdef"; static void preg(uchar *reg, int n) { char buf[25*3+1], *e; int i; e = buf; for(i = 0; i < n; i++){ *e++ = ntab[reg[i] >> 4]; *e++ = ntab[reg[i] & 0xf]; *e++ = ' '; } *e++ = '\n'; *e = 0; dprint(buf); } static void dreg(char *s, Aport *p) { dprint("%stask=%lux; cmd=%lux; ci=%lux; is=%lux\n", s, p->task, p->cmd, p->ci, p->isr); } static void esleep(int ms) { if(waserror()) return; tsleep(&up->sleep, return0, 0, ms); poperror(); } typedef struct { Aport *p; int i; } Asleep; static int ahciclear(void *v) { Asleep *s; s = v; return (s->p->ci & s->i) == 0; } static void aesleep(Aportm *m, Asleep *a, int ms) { if(waserror()) return; tsleep(m, ahciclear, a, ms); poperror(); } static int ahciwait(Aportc *c, int ms) { Aport *p; Asleep as; p = c->p; p->ci = 1; as.p = p; as.i = 1; aesleep(c->m, &as, ms); if((p->task & 1) == 0 && p->ci == 0) return 0; dreg("ahciwait fail/timeout ", c->p); return -1; } static Alist* mkalist(Aportm *m, uint flags, uchar *data, int len) { Actab *t; Alist *l; Aprdt *p; t = m->ctab; if(data && len > 0){ p = &t->prdt; p->dba = PCIWADDR(data); p->dbahi = Pciwaddrh(data); p->count = 1<<31 | len - 2 | 1; flags |= 1<<16; } l = m->list; l->flags = flags | 0x5; l->len = 0; l->ctab = PCIWADDR(t); l->ctabhi = Pciwaddrh(t); return l; } static int nop(Aportc *pc) { uchar *c; if((pc->m->feat & Dnop) == 0) return -1; c = pc->m->ctab->cfis; nopfis(pc->m, c, 0); mkalist(pc->m, Lwrite, 0, 0); return ahciwait(pc, 3*1000); } static int setfeatures(Aportc *pc, uchar f, uint w) { uchar *c; c = pc->m->ctab->cfis; featfis(pc->m, c, f); mkalist(pc->m, Lwrite, 0, 0); return ahciwait(pc, w); } /* * ata 7, required for sata, requires that all devices "support" * udma mode 5, however sata:pata bridges allow older devices * which may not. the innodisk satadom, for example allows * only udma mode 2. on the assumption that actual udma is * taking place on these bridges, we set the highest udma mode * available, or pio if there is no udma mode available. */ static int settxmode(Aportc *pc, uchar f) { uchar *c; c = pc->m->ctab->cfis; if(txmodefis(pc->m, c, f) == -1) return 0; mkalist(pc->m, Lwrite, 0, 0); return ahciwait(pc, 3*1000); } static void asleep(int ms) { if(up == nil || !islo()) delay(ms); else esleep(ms); } static void ahciportreset(Aportc *c, uint mode) { ulong *cmd, i; Aport *p; p = c->p; cmd = &p->cmd; *cmd &= ~(Afre|Ast); for(i = 0; i < 500; i += 25){ if((*cmd & Acr) == 0) break; asleep(25); } if((*cmd & Apwr) != Apwr) *cmd |= Apwr; p->sctl = 3*Aipm | 0*Aspd | Adet; delay(1); p->sctl = 3*Aipm | mode*Aspd; } static int ahciflushcache(Aportc *pc) { uchar *c; c = pc->m->ctab->cfis; flushcachefis(pc->m, c); mkalist(pc->m, Lwrite, 0, 0); if(ahciwait(pc, 60000) == -1 || pc->p->task & (1|32)){ dprint("ahciflushcache fail [task %lux]\n", pc->p->task); // preg(pc->m->fis.r, 20); return -1; } return 0; } static int ahciidentify0(Aportc *pc, void *id) { uchar *c; Actab *t; t = pc->m->ctab; c = t->cfis; memset(id, 0, 0x200); identifyfis(pc->m, c); mkalist(pc->m, 0, id, 0x200); return ahciwait(pc, 3*1000); } static vlong ahciidentify(Aportc *pc, ushort *id, uint *ss, char *d) { int i, n; vlong s; Aportm *m; m = pc->m; for(i = 0;; i++){ if(i > 5 || ahciidentify0(pc, id) != 0) return -1; n = idpuis(id); if(n & Pspinup && setfeatures(pc, 7, 20*1000) == -1) print("%s: puis spinup fail\n", d); if(n & Pidready) break; print("%s: puis waiting\n", d); } s = idfeat(m, id); *ss = idss(m, id); if(s == -1 || (m->feat&Dlba) == 0){ if((m->feat&Dlba) == 0) dprint("%s: no lba support\n", d); return -1; } return s; } static int ahciquiet(Aport *a) { ulong *p, i; p = &a->cmd; *p &= ~Ast; for(i = 0; i < 500; i += 50){ if((*p & Acr) == 0) goto stop; asleep(50); } return -1; stop: if((a->task & (ASdrq|ASbsy)) == 0){ *p |= Ast; return 0; } *p |= Aclo; for(i = 0; i < 500; i += 50){ if((*p & Aclo) == 0) goto stop1; asleep(50); } return -1; stop1: /* extra check */ dprint("ahci: clo clear [task %lux]\n", a->task); if(a->task & ASbsy) return -1; *p |= Afre | Ast; return 0; } static int ahcicomreset(Aportc *pc) { uchar *c; dreg("comreset ", pc->p); if(ahciquiet(pc->p) == -1){ dprint("ahci: ahciquiet failed\n"); return -1; } dreg("comreset ", pc->p); c = pc->m->ctab->cfis; nopfis(pc->m, c, 1); mkalist(pc->m, Lclear | Lreset, 0, 0); if(ahciwait(pc, 500) == -1){ dprint("ahci: comreset1 failed\n"); return -1; } microdelay(250); dreg("comreset ", pc->p); nopfis(pc->m, c, 0); mkalist(pc->m, Lwrite, 0, 0); if(ahciwait(pc, 150) == -1){ dprint("ahci: comreset2 failed\n"); return -1; } dreg("comreset ", pc->p); return 0; } static int ahciidle(Aport *port) { ulong *p, i, r; p = &port->cmd; if((*p & Arun) == 0) return 0; *p &= ~Ast; r = 0; for(i = 0; i < 500; i += 25){ if((*p & Acr) == 0) goto stop; asleep(25); } r = -1; stop: if((*p & Afre) == 0) return r; *p &= ~Afre; for(i = 0; i < 500; i += 25){ if((*p & Afre) == 0) return 0; asleep(25); } return -1; } /* * §6.2.2.1 first part; comreset handled by reset disk. * - remainder is handled by configdisk. * - ahcirecover is a quick recovery from a failed command. */ static int ahciswreset(Aportc *pc) { int i; i = ahciidle(pc->p); pc->p->cmd |= Afre; if(i == -1) return -1; if(pc->p->task & (ASdrq|ASbsy)) return -1; return 0; } static int ahcirecover(Aportc *pc) { ahciswreset(pc); pc->p->cmd |= Ast; if(settxmode(pc, pc->m->udma) == -1) return -1; return 0; } static void* malign(int size, int align) { void *v; v = xspanalloc(size, align, 0); memset(v, 0, size); return v; } static void setupfis(Afis *f) { f->base = malign(0x100, 0x100); f->d = f->base + 0; f->p = f->base + 0x20; f->r = f->base + 0x40; f->u = f->base + 0x60; f->devicebits = (ulong*)(f->base + 0x58); } static void ahciwakeup(Aportc *c, uint mode) { ushort s; Aport *p; p = c->p; s = p->sstatus; if((s & Isleepy) == 0) return; if((s & Smask) != Spresent){ dprint("ahci: slumbering drive missing [ss %.3ux]\n", s); return; } ahciportreset(c, mode); dprint("ahci: wake %.3ux -> %.3lux\n", s, c->p->sstatus); } static int ahciconfigdrive(Ahba *h, Aportc *c, int mode) { Aportm *m; Aport *p; int i; p = c->p; m = c->m; if(m->list == 0){ setupfis(&m->fis); m->list = malign(sizeof *m->list, 1024); m->ctab = malign(sizeof *m->ctab, 128); } if(ahciidle(p) == -1){ dprint("ahci: port not idle\n"); return -1; } p->list = PCIWADDR(m->list); p->listhi = Pciwaddrh(m->list); p->fis = PCIWADDR(m->fis.base); p->fishi = Pciwaddrh(m->fis.base); p->cmd |= Afre; if((p->cmd & Apwr) != Apwr) p->cmd |= Apwr; if((h->cap & Hss) != 0){ dprint("ahci: spin up ... [%.3lux]\n", p->sstatus); for(i = 0; i < 1400; i += 50){ if((p->sstatus & Sbist) != 0) break; if((p->sstatus & Smask) == Sphylink) break; asleep(50); } } if((p->sstatus & SSmask) == (Isleepy | Spresent)) ahciwakeup(c, mode); p->serror = SerrAll; p->ie = IEM; /* we will get called again once phylink has been established */ if((p->sstatus & Smask) != Sphylink) return 0; /* disable power managment sequence from book. */ p->sctl = 3*Aipm | mode*Aspd | 0*Adet; p->cmd &= ~Aalpe; p->cmd |= Afre | Ast; return 0; } static int ahcienable(Ahba *h) { h->ghc |= Hie; return 0; } static int ahcidisable(Ahba *h) { h->ghc &= ~Hie; return 0; } static int countbits(ulong u) { int i, n; n = 0; for(i = 0; i < 32; i++) if(u & (1<<i)) n++; return n; } static int ahciconf(Ctlr *c) { uint u; Ahba *h; h = c->hba = (Ahba*)c->mmio; u = h->cap; if((u & Ham) == 0) h->ghc |= Hae; return countbits(h->pi); } static int ahcihandoff(Ahba *h) { int wait; if((h->cap2 & Boh) == 0) return 0; h->bios |= Oos; for(wait = 0; wait < 2000; wait += 100){ if((h->bios & Bos) == 0) return 0; delay(100); } iprint("ahci: bios handoff timed out\n"); return -1; } static int ahcihbareset(Ahba *h) { int wait; h->ghc |= Hhr; for(wait = 0; wait < 1000; wait += 100){ if((h->ghc & Hhr) == 0) return 0; delay(100); } return -1; } static char* dnam(Drive *d) { char *s; s = d->name; if(d->unit && d->unit->name) s = d->unit->name; return s; } static int identify(Drive *d) { uchar oserial[21]; ushort *id; vlong osectors, s; SDunit *u; id = d->info; s = ahciidentify(&d->portc, id, &d->secsize, dnam(d)); if(s == -1) return -1; osectors = d->sectors; memmove(oserial, d->serial, sizeof d->serial); d->sectors = s; idmove(d->serial, id+10, 20); idmove(d->firmware, id+23, 8); idmove(d->model, id+27, 40); d->wwn = idwwn(d->portc.m, id); u = d->unit; memset(u->inquiry, 0, sizeof u->inquiry); u->inquiry[2] = 2; u->inquiry[3] = 2; u->inquiry[4] = sizeof u->inquiry - 4; memmove(u->inquiry+8, d->model, 40); if(osectors != s || memcmp(oserial, d->serial, sizeof oserial)){ d->drivechange = 1; d->nodma = 0; u->sectors = 0; } return 0; } static void clearci(Aport *p) { if(p->cmd & Ast){ p->cmd &= ~Ast; p->cmd |= Ast; } } static int ignoreahdrs(Drive *d) { return d->portm.feat & Datapi && d->ctlr->type == Tsb600; } static void updatedrive(Drive *d) { ulong f, cause, serr, s0, pr, ewake; Aport *p; static ulong last; pr = 1; ewake = 0; f = 0; p = d->port; cause = p->isr; if(d->ctlr->type == Tjmicron) cause &= ~Aifs; serr = p->serror; p->isr = cause; if(p->ci == 0){ f |= Fdone; pr = 0; }else if(cause & Adps){ pr = 0; }else if(cause & Atfes){ f |= Ferror; ewake = 1; pr = 0; } if(cause & Ifatal){ ewake = 1; dprint("%s: fatal\n", dnam(d)); } if(cause & Adhrs){ if(p->task & 33){ if(ignoreahdrs(d) && serr & ErrE) f |= Fahdrs; dprint("%s: Adhrs cause %lux serr %lux task %lux\n", dnam(d), cause, serr, p->task); f |= Ferror; ewake = 1; } pr = 0; } if(p->task & 1 && last != cause) dprint("%s: err ca %lux serr %lux task %lux sstat %.3lux\n", dnam(d), cause, serr, p->task, p->sstatus); if(pr) dprint("%s: upd %lux ta %lux\n", dnam(d), cause, p->task); if(cause & (Aprcs|Aifs)){ s0 = d->state; switch(p->sstatus & Smask){ case Smissing: d->state = Dmissing; break; case Spresent: if((p->sstatus & Imask) == Islumber) d->state = Dnew; else d->state = Derror; break; case Sphylink: /* power mgnt crap for suprise removal */ p->ie |= Aprcs|Apcs; /* is this required? */ d->state = Dreset; break; case Sbist: d->state = Doffline; break; } dprint("%s: updatedrive: %s → %s [ss %.3lux]\n", dnam(d), diskstates[s0], diskstates[d->state], p->sstatus); if(s0 == Dready && d->state != Dready) dprint("%s: pulled\n", dnam(d)); if(d->state != Dready) f |= Ferror; if(d->state != Dready || p->ci) ewake = 1; } p->serror = serr; if(ewake) clearci(p); if(f){ d->portm.flag = f; wakeup(&d->portm); } last = cause; } static void dstatus(Drive *d, int s) { dprint("%s: dstatus: %s → %s from pc=%p\n", dnam(d), diskstates[d->state], diskstates[s], getcallerpc(&d)); ilock(d); d->state = s; iunlock(d); } static void configdrive(Drive *d) { if(ahciconfigdrive(d->ctlr->hba, &d->portc, d->mode) == -1){ dstatus(d, Dportreset); return; } ilock(d); switch(d->port->sstatus & Smask){ default: case Smissing: d->state = Dmissing; break; case Spresent: if(d->state == Dnull) d->state = Dportreset; break; case Sphylink: if(d->state == Dready) break; d->wait = 0; d->state = Dnew; break; case Sbist: d->state = Doffline; break; } iunlock(d); dprint("%s: configdrive: %s\n", dnam(d), diskstates[d->state]); } static void resetdisk(Drive *d) { uint state, det, stat; Aport *p; p = d->port; det = p->sctl & 7; stat = p->sstatus & Smask; state = (p->cmd>>28) & 0xf; dprint("%s: resetdisk [icc %ux; det %.3ux; sdet %.3ux]\n", dnam(d), state, det, stat); ilock(d); if(d->state != Dready && d->state != Dnew) d->portm.flag |= Ferror; if(stat != Sphylink) d->state = Dportreset; else d->state = Dreset; clearci(p); /* satisfy sleep condition. */ wakeup(&d->portm); iunlock(d); if(stat != Sphylink) return; qlock(&d->portm); if(p->cmd&Ast && ahciswreset(&d->portc) == -1) dstatus(d, Dportreset); /* get a bigger stick. */ else configdrive(d); qunlock(&d->portm); } static int newdrive(Drive *d) { char *s; Aportc *c; Aportm *m; c = &d->portc; m = &d->portm; qlock(c->m); setfissig(m, c->p->sig); if(identify(d) == -1){ dprint("%s: identify failure\n", dnam(d)); goto lose; } if(settxmode(c, m->udma) == -1){ dprint("%s: can't set udma mode\n", dnam(d)); goto lose; } if(m->feat & Dpower && setfeatures(c, 0x85, 3*1000) == -1){ dprint("%s: can't disable apm\n", dnam(d)); m->feat &= ~Dpower; if(ahcirecover(c) == -1) goto lose; } dstatus(d, Dready); qunlock(c->m); s = ""; if(m->feat & Dllba) s = "L"; idprint("%s: %sLBA %,lld sectors\n", dnam(d), s, d->sectors); idprint(" %s %s %s %s\n", d->model, d->firmware, d->serial, d->drivechange? "[newdrive]": ""); return 0; lose: idprint("%s: can't be initialized\n", dnam(d)); dstatus(d, Dnull); qunlock(c->m); return -1; } enum { Nms = 256, Mcomrwait = 1*1024/Nms - 1, Mphywait = 2*1024/Nms - 1, Midwait = 16*1024/Nms - 1, }; static void hangck(Drive *d) { if(d->active && d->totick != 0 && (long)(Ticks - d->totick) > 0){ dprint("%s: drive hung [task %lux; ci %lux; serr %lux]%s\n", dnam(d), d->port->task, d->port->ci, d->port->serror, d->nodma == 0 ? "; disabling dma" : ""); d->nodma = 1; d->state = Dreset; } } static ushort olds[NCtlr*NCtlrdrv]; static void doportreset(Drive *d) { qlock(&d->portm); ahciportreset(&d->portc, d->mode); qunlock(&d->portm); dprint("ahci: portreset: %s [task %lux; ss %.3lux]\n", diskstates[d->state], d->port->task, d->port->sstatus); } /* drive must be locked */ static void statechange(Drive *d) { switch(d->state){ case Dnull: case Doffline: if(d->unit) if(d->unit->sectors != 0){ d->sectors = 0; d->drivechange = 1; } case Dready: d->wait = 0; } } static uint maxmode(Ctlr *c) { return (c->hba->cap & 0xf*Hiss)/Hiss; } static void iainterrupt(Ureg*, void *); static void checkdrive(Drive *d, int i) { ushort s, sig; if(d->ctlr->enabled == 0) return; if(d->driveno == 0) iainterrupt(0, d->ctlr); /* check for missed irq's */ ilock(d); s = d->port->sstatus; if(s) d->lastseen = Ticks; if(s != olds[i]){ dprint("%s: status: %.3ux -> %.3ux: %s\n", dnam(d), olds[i], s, diskstates[d->state]); olds[i] = s; d->wait = 0; } hangck(d); switch(d->state){ case Dnull: case Dready: break; case Dmissing: case Dnew: switch(s & (Iactive|Smask)){ case Spresent: ahciwakeup(&d->portc, d->mode); case Smissing: break; default: dprint("%s: unknown status %.3ux\n", dnam(d), s); /* fall through */ case Iactive: /* active, no device */ if(++d->wait&Mphywait) break; reset: if(d->mode == 0) d->mode = maxmode(d->ctlr); else d->mode--; if(d->mode == DMautoneg){ d->wait = 0; d->state = Dportreset; goto portreset; } dprint("%s: reset; new mode %s\n", dnam(d), modes[d->mode]); iunlock(d); resetdisk(d); ilock(d); break; case Iactive | Sphylink: if(d->unit == nil) break; if((++d->wait&Midwait) == 0){ dprint("%s: slow reset [task %lux; ss %.3ux; wait %d]\n", dnam(d), d->port->task, s, d->wait); goto reset; } s = (uchar)d->port->task; sig = d->port->sig >> 16; if(s == 0x7f || s&ASbsy || (sig != 0xeb14 && (s & ASdrdy) == 0)) break; iunlock(d); newdrive(d); ilock(d); break; } break; case Doffline: if(d->wait++ & Mcomrwait) break; case Derror: case Dreset: dprint("%s: reset [%s]: mode %d; status %.3ux\n", dnam(d), diskstates[d->state], d->mode, s); iunlock(d); resetdisk(d); ilock(d); break; case Dportreset: portreset: if(d->wait++ & Mcomrwait) break; if(d->wait > Mcomrwait && (s & Iactive) == 0){ d->state = Dnull; /* stuck in portreset */ break; } dprint("%s: portreset [%s]: mode %d; status %.3ux\n", dnam(d), diskstates[d->state], d->mode, s); d->portm.flag |= Ferror; clearci(d->port); wakeup(&d->portm); if((s & Smask) == Smissing){ d->state = Dmissing; break; } iunlock(d); doportreset(d); ilock(d); break; } statechange(d); iunlock(d); } static void satakproc(void*) { int i; while(waserror()) ; for(;;){ tsleep(&up->sleep, return0, 0, Nms); for(i = 0; i < niadrive; i++) checkdrive(iadrive[i], i); } } static void iainterrupt(Ureg *u, void *a) { int i; ulong cause, m; Ctlr *c; Drive *d; c = a; ilock(c); cause = c->hba->isr; for(i = 0; cause; i++){ m = 1 << i; if((cause & m) == 0) continue; cause &= ~m; d = c->rawdrive + i; ilock(d); if(d->port != nil && d->port->isr && c->hba->pi & m) updatedrive(d); c->hba->isr = m; iunlock(d); } if(u == 0 && i > 0) c->missirq++; iunlock(c); } static int ahciencreset(Ctlr *c) { Ahba *h; int i; if(c->enctype == Eesb) return 0; h = c->hba; h->emctl |= Emrst; for(i = 0; i < 1000; i++){ if((h->emctl & Emrst) == 0) return 0; esleep(1); } print("%s: ahciencreset: hung ctlr\n", Tname(c)); return -1; } /* * from the standard: (http://en.wikipedia.org/wiki/IBPI) * rebuild is preferred as locate+fail; alternate 1hz fail * we're going to assume no locate led. */ enum { Ledsleep = 125, /* 8hz */ N0 = Ledon*Aled, L0 = Ledon*Aled | Ledon*Locled, L1 = Ledon*Aled | Ledoff*Locled, R0 = Ledon*Aled | Ledon*Locled | Ledon*Errled, R1 = Ledon*Aled | Ledoff*Errled, S0 = Ledon*Aled | Ledon*Locled /*| Ledon*Errled*/, /* botch */ S1 = Ledon*Aled | Ledoff*Errled, P0 = Ledon*Aled | Ledon*Errled, P1 = Ledon*Aled | Ledoff*Errled, F0 = Ledon*Aled | Ledon*Errled, C0 = Ledon*Aled | Ledon*Locled, C1 = Ledon*Aled | Ledoff*Locled, }; //static ushort led3[Ibpilast*8] = { //[Ibpinone*8] 0, 0, 0, 0, 0, 0, 0, 0, //[Ibpinormal*8] N0, N0, N0, N0, N0, N0, N0, N0, //[Ibpirebuild*8] R0, R0, R0, R0, R1, R1, R1, R1, //[Ibpilocate*8] L0, L1, L0, L1, L0, L1, L0, L1, //[Ibpispare*8] S0, S1, S0, S1, S1, S1, S1, S1, //[Ibpipfa*8] P0, P1, P0, P1, P1, P1, P1, P1, /* first 1 sec */ //[Ibpifail*8] F0, F0, F0, F0, F0, F0, F0, F0, //[Ibpicritarray*8] C0, C0, C0, C0, C1, C1, C1, C1, //[Ibpifailarray*8] C0, C1, C0, C1, C0, C1, C0, C1, //}; static ushort led2[Ibpilast*8] = { [Ibpinone*8] 0, 0, 0, 0, 0, 0, 0, 0, [Ibpinormal*8] N0, N0, N0, N0, N0, N0, N0, N0, [Ibpirebuild*8] R0, R0, R0, R0, R1, R1, R1, R1, [Ibpilocate*8] L0, L0, L0, L0, L0, L0, L0, L0, [Ibpispare*8] S0, S0, S0, S0, S1, S1, S1, S1, [Ibpipfa*8] P0, P1, P0, P1, P1, P1, P1, P1, /* first 1 sec */ [Ibpifail*8] F0, F0, F0, F0, F0, F0, F0, F0, [Ibpicritarray*8] C0, C0, C0, C0, C1, C1, C1, C1, [Ibpifailarray*8] C0, C1, C0, C1, C0, C1, C0, C1, }; static int ledstate(Ledport *p, uint seq) { ushort i; if(p->led == Ibpipfa && seq%32 >= 8) i = P1; else i = led2[8*p->led + seq%8]; if(i != p->ledbits){ p->ledbits = i; ledprint("ledstate %,.011ub %ud\n", p->ledbits, seq); return 1; } return 0; } static int blink(Drive *d, ulong t) { Ahba *h; Ctlr *c; Aledmsg msg; if(ledstate(d, t) == 0) return 0; c = d->ctlr; h = c->hba; /* ensure last message has been transmitted */ if(h->emctl & Tmsg) return -1; switch(c->enctype){ default: panic("%s: bad led type %d", dnam(d), c->enctype); case Elmt: memset(&msg, 0, sizeof msg); msg.type = Mled; msg.dsize = 0; msg.msize = sizeof msg - 4; msg.led[0] = d->ledbits; msg.led[1] = d->ledbits>>8; msg.pm = 0; msg.hba = d->driveno; memmove(c->enctx, &msg, sizeof msg); break; } h->emctl |= Tmsg; return 1; } enum { Esbdrv0 = 4, /* start pos in bits */ Esbiota = 3, /* shift in bits */ Esbact = 1, Esbloc = 2, Esberr = 4, }; uint esbbits(uint s) { uint i, e; /* except after c */ e = 0; for(i = 0; i < 3; i++) e |= ((s>>3*i & 7) != 0)<<i; return e; } static int blinkesb(Ctlr *c, ulong t) { uint i, s, u[32/4]; uvlong v; Drive *d; s = 0; for(i = 0; i < c->ndrive; i++){ d = c->drive[i]; s |= ledstate(d, t); /* no port mapping */ } if(s == 0) return 0; memset(u, 0, sizeof u); for(i = 0; i < c->ndrive; i++){ d = c->drive[i]; s = Esbdrv0 + Esbiota*i; v = esbbits(d->ledbits) * (1ull << s%32); u[s/32 + 0] |= v; u[s/32 + 1] |= v>>32; } for(i = 0; i < c->encsz; i++) c->enctx[i] = u[i]; return 1; } static long ahciledr(SDunit *u, Chan *ch, void *a, long n, vlong off) { Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; return ledr(d, ch, a, n, off); } static long ahciledw(SDunit *u, Chan *ch, void *a, long n, vlong off) { Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; return ledw(d, ch, a, n, off); } static void ledkproc(void*) { uchar map[NCtlr]; uint i, j, t0, t1; Ctlr *c; Drive *d; j = 0; memset(map, 0, sizeof map); for(i = 0; i < niactlr; i++) if(iactlr[i].enctype != 0){ if(ahciencreset(iactlr + i) == -1) continue; map[i] = 1; j++; } if(j == 0) pexit("no work", 1); for(i = 0; i < niadrive; i++){ d = iadrive[i]; d->nled = 3; /* hardcoded */ if(d->ctlr->enctype == Eesb) d->nled = 3; d->ledbits = -1; } for(i = 0; ; i++){ t0 = Ticks; for(j = 0; j < niadrive; ){ d = iadrive[j]; c = d->ctlr; if(map[c - iactlr] == 0) j++; else if(c->enctype == Eesb){ blinkesb(c, i); j += c->ndrive; }else{ blink(d, i); j++; } } t1 = Ticks; esleep(Ledsleep - TK2MS(t1 - t0)); } } static int waitready(Drive *d) { ulong s, i, δ; for(i = 0;; i += 250){ if(d->state == Dreset || d->state == Dportreset || d->state == Dnew) return 1; ilock(d); s = d->port->sstatus; if(d->state == Dready && (s & Smask) == Sphylink){ iunlock(d); return 0; } δ = Ticks - d->lastseen; if(d->state == Dnull || δ > 10*1000) break; if((s & Imask) == 0 && δ > 1500) break; if(i >= 15*1000){ d->state = Doffline; iunlock(d); print("%s: not responding; offline\n", dnam(d)); return -1; } iunlock(d); esleep(250); } iunlock(d); return -1; } static int iaverify(SDunit *u) { Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; ilock(c); ilock(d); if(d->unit == nil){ d->unit = u; if(c->enctype != 0) sdaddfile(u, "led", 0644, eve, ahciledr, ahciledw); } iunlock(d); iunlock(c); checkdrive(d, d->driveno); /* c->d0 + d->driveno */ return 1; } static int iaonline(SDunit *u) { int r; Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; while(d->state != Dmissing && waitready(d) == 1) esleep(1); dprint("%s: iaonline: %s\n", dnam(d), diskstates[d->state]); ilock(d); if(d->portm.feat & Datapi){ r = d->drivechange; d->drivechange = 0; iunlock(d); if(r != 0) scsiverify(u); return scsionline(u); } r = 0; if(d->drivechange){ d->drivechange = 0; r = 2; }else if(d->state == Dready) r = 1; if(r){ u->sectors = d->sectors; u->secsize = d->secsize; } iunlock(d); return r; } static int iaenable(SDev *s) { char name[32]; Ctlr *c; static int once; c = s->ctlr; ilock(c); if(c->enabled){ iunlock(c); return 1; } if(c->ndrive == 0) panic("iaenable: zero s->ctlr->ndrive"); pcisetbme(c->pci); snprint(name, sizeof name, "%s (%s)", s->name, s->ifc->name); intrenable(c->pci->intl, iainterrupt, c, c->pci->tbdf, name); /* supposed to squelch leftover interrupts here. */ ahcienable(c->hba); c->enabled = 1; iunlock(c); if(once == 0) kproc("iasata", satakproc, 0); if(++once == niactlr) kproc("ialed", ledkproc, 0); return 1; } static int iadisable(SDev *s) { char name[32]; Ctlr *c; c = s->ctlr; ilock(c); ahcidisable(c->hba); snprint(name, sizeof name, "%s (%s)", s->name, s->ifc->name); intrdisable(c->pci->intl, iainterrupt, c, c->pci->tbdf, name); c->enabled = 0; iunlock(c); return 1; } static Alist* ahcibuild(Drive *d, int rw, void *data, int nsect, vlong lba) { uchar *c; uint flags; Aportm *m; m = &d->portm; c = m->ctab->cfis; rwfis(m, c, rw, nsect, lba); flags = Lpref; if(rw == SDwrite) flags |= Lwrite; return mkalist(m, flags, data, nsect * d->secsize); } static Alist* ahcibuildpkt(Drive *d, SDreq *r, void *data, int n) { uint flags; Aportm *m; uchar *c; Actab *t; m = &d->portm; t = m->ctab; c = t->cfis; atapirwfis(m, c, r->cmd, r->clen, 0x2000); if((n & 15) != 0 || d->nodma) c[Ffeat] &= ~1; /* use pio */ else if(c[Ffeat] & 1 && d->info[62] & (1<<15)) /* dma direction */ c[Ffeat] = (c[Ffeat] & ~(1<<2)) | ((r->write == 0) << 2); flags = Lpref | Latapi; if(r->write != 0 && data) flags |= Lwrite; return mkalist(m, flags, data, n); } static Alist* ahcibuildfis(Drive *d, SDreq *r, void *data, uint n) { uint flags; uchar *c; Aportm *m; if((r->ataproto & Pprotom) == Ppkt) return ahcibuildpkt(d, r, data, n); m = &d->portm; c = m->ctab->cfis; memmove(c, r->cmd, r->clen); flags = Lpref; if(r->write || n == 0) flags |= Lwrite; return mkalist(m, flags, data, n); } static int lockready(Drive *d) { int i; qlock(&d->portm); while ((i = waitready(d)) == 1) { qunlock(&d->portm); esleep(1); qlock(&d->portm); } return i; } static int flushcache(Drive *d) { int i; i = -1; if(lockready(d) == 0) i = ahciflushcache(&d->portc); qunlock(&d->portm); return i; } static int io(Drive *d, uint proto, int to, int interrupt) { uint task, flag, stat, rv; Aport *p; Asleep as; switch(waitready(d)){ case -1: return SDeio; case 1: return SDretry; } ilock(d); d->portm.flag = 0; iunlock(d); p = d->port; p->ci = 1; as.p = p; as.i = 1; d->totick = 0; if(to > 0) d->totick = Ticks + MS2TK(to) | 1; /* fix fencepost */ d->active++; while(waserror()) if(interrupt){ d->active--; d->port->ci = 0; if(ahcicomreset(&d->portc) == -1) dstatus(d, Dreset); return SDtimeout; } sleep(&d->portm, ahciclear, &as); poperror(); d->active--; ilock(d); stat = d->state; flag = d->portm.flag; task = d->port->task; iunlock(d); rv = SDok; if(proto & Ppkt && stat == Dready){ rv = task >> 8 + 4 & 0xf; flag &= ~Fahdrs; flag |= Fdone; }else if(task & (Efatal<<8) || task & (ASbsy|ASdrq) && stat == Dready){ d->port->ci = 0; ahcirecover(&d->portc); task = d->port->task; flag &= ~Fdone; /* either an error or do-over */ } if(flag == 0){ print("%s: retry\n", dnam(d)); return SDretry; } if(flag & (Fahdrs | Ferror)){ if((task & Eidnf) == 0) print("%s: i/o error %ux\n", dnam(d), task); return SDcheck; } return rv; } static int iariopkt(SDreq *r, Drive *d) { int try, to; uchar *cmd; Alist *l; cmd = r->cmd; aprint("%s: %.2ux %.2ux %c %d %p\n", dnam(d), cmd[0], cmd[2], "rw"[r->write], r->dlen, r->data); r->rlen = 0; /* * prevent iaonline() to hang forever by timing out * inquiry and capacity commands after 5 seconds. */ to = 30*1000; switch(cmd[0]){ case 0x9e: if(cmd[1] != 0x10) break; case 0x25: case 0x12: to = 5*1000; break; } for(try = 0; try < 10; try++){ qlock(&d->portm); l = ahcibuildpkt(d, r, r->data, r->dlen); r->status = io(d, Ppkt, to, 0); switch(r->status){ case SDeio: qunlock(&d->portm); return SDeio; case SDretry: qunlock(&d->portm); continue; } r->rlen = l->len; qunlock(&d->portm); return SDok; } print("%s: bad disk\n", dnam(d)); return r->status = SDcheck; } static long ahcibio(SDunit *u, int lun, int write, void *a, long count, uvlong lba) { int n, rw, try, status, max; uchar *data; Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; if(d->portm.feat & Datapi) return scsibio(u, lun, write, a, count, lba); max = 128; if(d->portm.feat & Dllba){ max = 8192; /* ahci maximum */ if(c->type == Tsb600) max = 255; /* errata */ } rw = write? SDwrite: SDread; data = a; dprint("%s: bio: %llud %c %lud %p\n", dnam(d), lba, "rw"[rw], count, data); for(try = 0; try < 10;){ n = count; if(n > max) n = max; qlock(&d->portm); ahcibuild(d, rw, data, n, lba); status = io(d, Pdma, 5000, 0); qunlock(&d->portm); switch(status){ case SDeio: return -1; case SDretry: try++; continue; } try = 0; count -= n; lba += n; data += n * u->secsize; if(count == 0) return data - (uchar*)a; } print("%s: bad disk\n", dnam(d)); return -1; } static int iario(SDreq *r) { int i, n, count, rw; uchar *cmd; uvlong lba; Ctlr *c; Drive *d; SDunit *u; u = r->unit; c = u->dev->ctlr; d = c->drive[u->subno]; if(d->portm.feat & Datapi) return iariopkt(r, d); cmd = r->cmd; if(cmd[0] == 0x35 || cmd[0] == 0x91){ if(flushcache(d) == 0) return sdsetsense(r, SDok, 0, 0, 0); return sdsetsense(r, SDcheck, 3, 0xc, 2); } if((i = sdfakescsi(r)) != SDnostatus){ r->status = i; return i; } if((i = sdfakescsirw(r, &lba, &count, &rw)) != SDnostatus) return i; n = ahcibio(u, r->lun, r->write, r->data, count, lba); if(n == -1) return SDeio; r->rlen = n; return SDok; } static uchar bogusrfis[16] = { [Ftype] 0x34, [Fioport] 0x40, [Fstatus] 0x50, [Fdev] 0xa0, }; static void sdr0(Drive *d) { uchar *c; c = d->portm.fis.r; memmove(c, bogusrfis, sizeof bogusrfis); coherence(); } static int sdr(SDreq *r, Drive *d, int st) { uchar *c; uint t; if((r->ataproto & Pprotom) == Ppkt){ t = d->port->task; if(t & ASerr) st = t >> 8 + 4 & 0xf; } c = d->portm.fis.r; memmove(r->cmd, c, 16); r->status = st; if(st == SDcheck) st = SDok; return st; } static int fisreqchk(Sfis *f, SDreq *r) { if((r->ataproto & Pprotom) == Ppkt) return SDnostatus; /* * handle oob requests; * restrict & sanitize commands */ if(r->clen != 16) error(Eio); if(r->cmd[0] == 0xf0){ sigtofis(f, r->cmd); r->status = SDok; return SDok; } r->cmd[0] = 0x27; r->cmd[1] = 0x80; r->cmd[7] |= 0xa0; return SDnostatus; } static int iaataio(SDreq *r) { int try; Ctlr *c; Drive *d; SDunit *u; Alist *l; u = r->unit; c = u->dev->ctlr; d = c->drive[u->subno]; if((r->status = fisreqchk(&d->portm, r)) != SDnostatus) return r->status; r->rlen = 0; sdr0(d); for(try = 0; try < 10; try++){ qlock(&d->portm); l = ahcibuildfis(d, r, r->data, r->dlen); r->status = io(d, r->ataproto & Pprotom, -1, 1); switch(r->status){ case SDtimeout: qunlock(&d->portm); return sdsetsense(r, SDcheck, 11, 0, 6); case SDeio: qunlock(&d->portm); return SDeio; case SDretry: qunlock(&d->portm); continue; } r->rlen = (r->ataproto & Pprotom) == Ppkt ? l->len : r->dlen; try = sdr(r, d, r->status); qunlock(&d->portm); return try; } print("%s: bad disk\n", dnam(d)); return r->status = SDeio; } enum{ Ghc = 0x04/4, /* global host control */ Pi = 0x0c/4, /* ports implemented */ Cmddec = 1<<15, /* enable command block decode */ /* Ghc bits */ Ahcien = 1<<31, /* ahci enable */ }; static void iasetupahci(Ctlr *c) { if(c->type != Tich) return; pcicfgw16(c->pci, 0x40, pcicfgr16(c->pci, 0x40) & ~Cmddec); pcicfgw16(c->pci, 0x42, pcicfgr16(c->pci, 0x42) & ~Cmddec); c->lmmio[Ghc] |= Ahcien; c->lmmio[Pi] = (1 << 6) - 1; /* 6 ports (supposedly ro pi reg) */ /* enable ahci mode; from ich9 datasheet */ pcicfgw16(c->pci, 0x90, 1<<6 | 1<<5); /* configure drives 0-5 as ahci sata (c.f. errata) */ pcicfgw16(c->pci, 0x92, pcicfgr16(c->pci, 0x92) | 0xf); } static void sbsetupahci(Pcidev *p) { print("sbsetupahci: tweaking %.4ux ccru %.2ux ccrp %.2ux\n", p->did, p->ccru, p->ccrp); pcicfgw8(p, 0x40, pcicfgr8(p, 0x40) | 1); pcicfgw8(p, PciCCRu, 6); pcicfgw8(p, PciCCRp, 1); p->ccru = 6; p->ccrp = 1; } static int esbenc(Ctlr *c) { c->encsz = 1; c->enctx = (ulong*)(c->mmio + 0xa0); c->enctype = Eesb; c->enctx[0] = 0; return 0; } static int ahciencinit(Ctlr *c) { ulong type, sz, o, *bar; Ahba *h; h = c->hba; if(c->type == Tesb) return esbenc(c); if((h->cap & Hems) == 0) return -1; type = h->emctl & Emtype; switch(type){ case Esgpio: case Eses2: case Esafte: return -1; case Elmt: break; default: return -1; } sz = h->emloc & 0xffff; o = h->emloc>>16; if(sz == 0 || o == 0) return -1; bar = c->lmmio; dprint("size = %.4lux; loc = %.4lux*4\n", sz, o); c->encsz = sz; c->enctx = bar + o; if((h->emctl & Xonly) == 0){ if(h->emctl & Smb) c->encrx = bar + o; else c->encrx = bar + o*2; } c->enctype = type; return 0; } static int didtype(Pcidev *p) { int type; type = Tahci; switch(p->vid){ default: return -1; case 0x8086: if((p->did & 0xffff) == 0x1e02) return Tich; /* c210 */ if((p->did & 0xffff) == 0x8c02) return Tich; /* c220 */ if((p->did & 0xffff) == 0x24d1) return Tich; /* 82801eb/er */ if((p->did & 0xffff) == 0x2653) return Tich; /* 82801fbm */ if((p->did & 0xfffc) == 0x2680) return Tesb; if((p->did & 0xfffb) == 0x27c1) return Tich; /* 82801g[bh]m */ if((p->did & 0xffff) == 0x2822) return Tich; /* 82801 SATA RAID */ if((p->did & 0xffff) == 0x2821) return Tich; /* 82801h[roh] */ if((p->did & 0xfffe) == 0x2824) return Tich; /* 82801h[b] */ if((p->did & 0xfeff) == 0x2829) return Tich; /* ich8 */ if((p->did & 0xfffe) == 0x2922) return Tich; /* ich9 */ if((p->did & 0xffff) == 0x3a02) return Tich; /* 82801jd/do */ if((p->did & 0xfefe) == 0x3a22) return Tich; /* ich10, pch */ if((p->did & 0xfff7) == 0x3b28) return Tich; /* pchm */ if((p->did & 0xfffe) == 0x3b22) return Tich; /* pch */ break; case 0x1002: if(p->ccru == 1 || p->ccrp != 1) if(p->did == 0x4380 || p->did == 0x4390) sbsetupahci(p); type = Tsb600; break; case 0x1106: /* * unconfirmed report that the programming * interface is set incorrectly. */ if(p->did == 0x3349) return Tahci; break; case 0x1022: /* Hudson SATA Controller [AHCI mode] */ if((p->did & 0xfffe) == 0x7800){ sbsetupahci(p); return Tahci; } break; case 0x10de: case 0x1039: case 0x1b4b: case 0x11ab: break; case 0x197b: case 0x10b9: type = Tjmicron; break; } if(p->ccrb == Pcibcstore && p->ccru == 6 && p->ccrp == 1) return type; return -1; } static SDev* iapnp(void) { int i, n, nunit, type; uvlong io; Ctlr *c; Drive *d; Pcidev *p; SDev *s; static int done; if(done) return nil; done = 1; if(getconf("*noahci") != nil) return nil; if(getconf("*ahcidebug") != nil){ debug = 1; datapi = 1; } memset(olds, 0xff, sizeof olds); p = nil; while((p = pcimatch(p, 0, 0)) != nil){ if((type = didtype(p)) == -1) continue; io = p->mem[Abar].bar; if(io == 0 || (io & 1) != 0 || p->mem[Abar].size < 0x180) continue; io &= ~0xf; if(niactlr == NCtlr){ print("iapnp: %s: too many controllers\n", tname[type]); break; } c = iactlr + niactlr; s = sdevs + niactlr; memset(c, 0, sizeof *c); memset(s, 0, sizeof *s); c->mmio = vmap(io, p->mem[Abar].size); if(c->mmio == nil){ print("%s: can't map %llux\n", Tname(c), io); continue; } c->lmmio = (ulong*)c->mmio; c->pci = p; c->type = type; s->ifc = &sdiahciifc; s->idno = 'E'; s->ctlr = c; c->sdev = s; pcienable(p); ahcihandoff((Ahba*)c->mmio); if(p->vid == 0x8086) iasetupahci(c); nunit = ahciconf(c); if(nunit < 1){ vunmap(c->mmio, p->mem[Abar].size); pcidisable(p); continue; } c->ndrive = s->nunit = nunit; /* map the drives -- they don't all need to be enabled. */ memset(c->rawdrive, 0, sizeof c->rawdrive); n = 0; for(i = 0; i < NCtlrdrv; i++){ d = c->rawdrive + i; d->portno = i; d->driveno = -1; d->sectors = 0; d->serial[0] = ' '; d->ctlr = c; if((c->hba->pi & 1<<i) == 0) continue; io = 0x100 + 0x80*i; if((io + 0x80) > p->mem[Abar].size) continue; d->port = (Aport*)(c->mmio + io); d->portc.p = d->port; d->portc.m = &d->portm; d->driveno = n++; snprint(d->name, sizeof d->name, "iahci%d.%d", niactlr, i); c->drive[d->driveno] = d; iadrive[niadrive + d->driveno] = d; } for(i = 0; i < n; i++){ c->drive[i]->mode = DMautoneg; configdrive(c->drive[i]); } ahciencinit(c); niadrive += n; niactlr++; sdadddevs(s); i = (c->hba->cap >> 21) & 1; print("#S/%s: %s: sata-%s with %d ports\n", s->name, Tname(c), "I\0II" + i*2, nunit); } return nil; } static Htab ctab[] = { Aasp, "asp", Aalpe , "alpe ", Adlae, "dlae", Aatapi, "atapi", Apste, "pste", Afbsc, "fbsc", Aesp, "esp", Acpd, "cpd", Ampsp, "mpsp", Ahpcp, "hpcp", Apma, "pma", Acps, "cps", Acr, "cr", Afr, "fr", Ampss, "mpss", Apod, "pod", Asud, "sud", Ast, "st", }; static char* capfmt(char *p, char *e, Htab *t, int n, ulong cap) { uint i; *p = 0; for(i = 0; i < n; i++) if(cap & t[i].bit) p = seprint(p, e, "%s ", t[i].name); return p; } static int iarctl(SDunit *u, char *p, int l) { char buf[32], *e, *op; Aport *o; Ctlr *c; Drive *d; if((c = u->dev->ctlr) == nil) return 0; d = c->drive[u->subno]; o = d->port; e = p+l; op = p; if(d->state == Dready){ p = seprint(p, e, "model\t%s\n", d->model); p = seprint(p, e, "serial\t%s\n", d->serial); p = seprint(p, e, "firm\t%s\n", d->firmware); if(d->wwn != 0) p = seprint(p, e, "wwn\t%ullx\n", d->wwn); p = seprint(p, e, "flag\t"); p = pflag(p, e, &d->portm); p = seprint(p, e, "udma\t%d\n", d->portm.udma); }else p = seprint(p, e, "no disk present [%s]\n", diskstates[d->state]); serrstr(o->serror, buf, buf + sizeof buf - 1); p = seprint(p, e, "reg\ttask %lux cmd %lux serr %lux %s ci %lux is %lux " "sig %lux sstatus %.3lux\n", o->task, o->cmd, o->serror, buf, o->ci, o->isr, o->sig, o->sstatus); p = seprint(p, e, "cmd\t"); p = capfmt(p, e, ctab, nelem(ctab), o->cmd); p = seprint(p, e, "\n"); p = seprint(p, e, "mode\t%s %s\n", modes[d->mode], modes[maxmode(c)]); p = seprint(p, e, "geometry %llud %d\n", d->sectors, d->secsize); p = seprint(p, e, "alignment %d %d\n", d->secsize<<d->portm.physshift, d->portm.physalign); p = seprint(p, e, "missirq\t%ud\n", c->missirq); return p - op; } static void forcemode(Drive *d, char *mode) { int i; for(i = 0; i < nelem(modes); i++) if(strcmp(mode, modes[i]) == 0) break; if(i == nelem(modes)) i = 0; ilock(d); d->mode = i; iunlock(d); } static void forcestate(Drive *d, char *state) { int i; for(i = 0; i < nelem(diskstates); i++) if(strcmp(state, diskstates[i]) == 0) break; if(i == nelem(diskstates)) error(Ebadctl); dstatus(d, i); } static int runsettxmode(Drive *d, char *s) { int i; Aportc *c; Aportm *m; c = &d->portc; m = &d->portm; i = 1; if(lockready(d) == 0){ m->udma = atoi(s); if(settxmode(c, m->udma) == 0) i = 0; } qunlock(m); return i; } static int iawctl(SDunit *u, Cmdbuf *cmd) { char **f; Ctlr *c; Drive *d; c = u->dev->ctlr; d = c->drive[u->subno]; f = cmd->f; if(strcmp(f[0], "mode") == 0) forcemode(d, f[1]? f[1]: "satai"); else if(strcmp(f[0], "state") == 0) forcestate(d, f[1]? f[1]: "null"); else if(strcmp(f[0], "txmode") == 0){ if(runsettxmode(d, f[1]? f[1]: "0")) cmderror(cmd, "bad txmode / stuck port"); }else cmderror(cmd, Ebadctl); return 0; } static char * portr(char *p, char *e, uint x) { int i, a; p[0] = 0; a = -1; for(i = 0; i < 32; i++){ if((x & (1<<i)) == 0){ if(a != -1 && i - 1 != a) p = seprint(p, e, "-%d", i - 1); a = -1; continue; } if(a == -1){ if(i > 0) p = seprint(p, e, ", "); p = seprint(p, e, "%d", a = i); } } if(a != -1 && i - 1 != a) p = seprint(p, e, "-%d", i - 1); return p; } static Htab htab[] = { H64a, "64a", Hncq, "ncq", Hsntf, "ntf", Hmps, "mps", Hss, "ss", Halp, "alp", Hal, "led", Hclo, "clo", Ham, "am", Hpm, "pm", Hfbs, "fbs", Hpmb, "pmb", Hssc, "slum", Hpsc, "pslum", Hcccs, "coal", Hems, "ems", Hxs, "xs", }; static Htab htab2[] = { Apts, "apts", Nvmp, "nvmp", Boh, "boh", }; static Htab emtab[] = { Pm, "pm", Alhd, "alhd", Xonly, "xonly", Smb, "smb", Esgpio, "esgpio", Eses2, "eses2", Esafte, "esafte", Elmt, "elmt", }; static char* iartopctl(SDev *s, char *p, char *e) { char pr[25]; ulong cap; Ahba *h; Ctlr *c; c = s->ctlr; h = c->hba; cap = h->cap; p = seprint(p, e, "sd%c ahci %s port %#p: ", s->idno, Tname(c), h); p = capfmt(p, e, htab, nelem(htab), cap); p = capfmt(p, e, htab2, nelem(htab2), h->cap2); p = capfmt(p, e, emtab, nelem(emtab), h->emctl); portr(pr, pr + sizeof pr, h->pi); return seprint(p, e, "iss %ld ncs %ld np %ld ghc %lux isr %lux pi %lux %s ver %lux\n", (cap>>20) & 0xf, (cap>>8) & 0x1f, 1 + (cap & 0x1f), h->ghc, h->isr, h->pi, pr, h->ver); } static int iawtopctl(SDev *, Cmdbuf *cmd) { int *v; char **f; f = cmd->f; v = 0; if(strcmp(f[0], "debug") == 0) v = &debug; else if(strcmp(f[0], "idprint") == 0) v = &prid; else if(strcmp(f[0], "aprint") == 0) v = &datapi; else if(strcmp(f[0], "ledprint") == 0) v = &dled; else cmderror(cmd, Ebadctl); switch(cmd->nf){ default: cmderror(cmd, Ebadarg); case 1: *v ^= 1; break; case 2: if(f[1]) *v = strcmp(f[1], "on") == 0; else *v ^= 1; break; } return 0; } SDifc sdiahciifc = { "ahci", iapnp, nil, /* legacy */ iaenable, iadisable, iaverify, iaonline, iario, iarctl, iawctl, ahcibio, nil, /* probe */ nil, /* clear */ iartopctl, iawtopctl, iaataio, };