diff options
Diffstat (limited to 'sys/dev/softraid.c')
| -rw-r--r-- | sys/dev/softraid.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/sys/dev/softraid.c b/sys/dev/softraid.c index 6a451964d5d..1b1ca8c1994 100644 --- a/sys/dev/softraid.c +++ b/sys/dev/softraid.c @@ -1,4 +1,4 @@ -/* $OpenBSD: softraid.c,v 1.34 2007/04/23 17:06:10 marco Exp $ */ +/* $OpenBSD: softraid.c,v 1.35 2007/04/23 20:11:31 marco Exp $ */ /* * Copyright (c) 2007 Marco Peereboom <marco@peereboom.us> * @@ -46,6 +46,8 @@ #include <dev/softraidvar.h> #include <dev/rndvar.h> +/* #define SR_FANCY_STATS */ + #ifdef SR_DEBUG uint32_t sr_debug = 0 /* | SR_D_CMD */ @@ -250,11 +252,13 @@ sr_get_ccb(struct sr_discipline *sd) int s; s = splbio(); + ccb = TAILQ_FIRST(&sd->sd_ccb_freeq); if (ccb) { TAILQ_REMOVE(&sd->sd_ccb_freeq, ccb, ccb_link); ccb->ccb_state = SR_CCB_INPROGRESS; } + splx(s); DNPRINTF(SR_D_CCB, "%s: sr_get_ccb: %p\n", DEVNAME(sd->sd_sc), @@ -279,6 +283,7 @@ sr_put_ccb(struct sr_ccb *ccb) ccb->ccb_target = -1; TAILQ_INSERT_TAIL(&sd->sd_ccb_freeq, ccb, ccb_link); + splx(s); } @@ -363,6 +368,8 @@ sr_put_wu(struct sr_workunit *wu) TAILQ_INIT(&wu->swu_ccb); TAILQ_INSERT_TAIL(&sd->sd_wu_freeq, wu, swu_link); + sd->sd_wu_pending--; + splx(s); } @@ -373,11 +380,14 @@ sr_get_wu(struct sr_discipline *sd) int s; s = splbio(); + wu = TAILQ_FIRST(&sd->sd_wu_freeq); if (wu) { TAILQ_REMOVE(&sd->sd_wu_freeq, wu, swu_link); wu->swu_state = SR_WU_INPROGRESS; } + sd->sd_wu_pending++; + splx(s); DNPRINTF(SR_D_WU, "%s: sr_get_wu: %p\n", DEVNAME(sd->sd_sc), wu); @@ -1437,6 +1447,7 @@ ragain: wup->swu_collider = wu; TAILQ_INSERT_TAIL(&sd->sd_wu_defq, wu, swu_link); + sd->sd_wu_collisions++; goto queued; } @@ -2002,6 +2013,41 @@ sr_refresh_sensors(void *arg) sv->sv_sensor.value = 0; /* unknown */ sv->sv_sensor.status = SENSOR_S_UNKNOWN; } + } +} + +#ifdef SR_FANCY_STATS +void sr_print_stats(void); + +void +sr_print_stats(void) +{ + struct sr_softc *sc; + struct sr_discipline *sd; + int i, vol; + + for (i = 0; i < softraid_cd.cd_ndevs; i++) + if (softraid_cd.cd_devs[i]) { + sc = softraid_cd.cd_devs[i]; + /* we'll only have one softc */ + break; + } + + if (!sc) { + printf("no softraid softc found\n"); + return; + } + for (i = 0, vol = -1; i < SR_MAXSCSIBUS; i++) { + /* XXX this will not work when we stagger disciplines */ + if (!sc->sc_dis[i]) + continue; + + sd = sc->sc_dis[i]; + printf("%s: ios in flight: %d collisions %llu\n", + sd->sd_vol.sv_meta.svm_devname, + sd->sd_wu_pending + sd->sd_max_wu, + sd->sd_wu_collisions); } } +#endif |