diff options
Diffstat (limited to 'sys/dev/twe/twe.c')
| -rw-r--r-- | sys/dev/twe/twe.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/sys/dev/twe/twe.c b/sys/dev/twe/twe.c index d7c8c77..6c9ea5a 100644 --- a/sys/dev/twe/twe.c +++ b/sys/dev/twe/twe.c @@ -68,7 +68,7 @@ static int twe_del_unit(struct twe_softc *sc, int unit); /* * Command I/O to controller. */ -static void twe_done(struct twe_softc *sc); +static void twe_done(struct twe_softc *sc, int startio); static void twe_complete(struct twe_softc *sc); static int twe_wait_status(struct twe_softc *sc, u_int32_t status, int timeout); static int twe_drain_response_queue(struct twe_softc *sc); @@ -388,7 +388,7 @@ twe_intr(struct twe_softc *sc) if (status_reg & TWE_STATUS_COMMAND_INTERRUPT) twe_command_intr(sc); if (status_reg & TWE_STATUS_RESPONSE_INTERRUPT) - twe_done(sc); + twe_done(sc, 1); }; /******************************************************************************** @@ -996,7 +996,7 @@ twe_immediate_request(struct twe_request *tr, int usetmp) /* Wait up to 5 seconds for the command to complete */ while ((count++ < 5000) && (tr->tr_status == TWE_CMD_BUSY)){ DELAY(1000); - twe_done(sc); + twe_done(sc, 1); } if (usetmp && (tr->tr_data != NULL)) bcopy(sc->twe_immediate, tr->tr_data, tr->tr_length); @@ -1144,7 +1144,8 @@ twe_start(struct twe_request *tr) } #endif return(0); - } + } else if (!(status_reg & TWE_STATUS_RESPONSE_QUEUE_EMPTY) && i > 1) + twe_done(sc, 0); } /* @@ -1162,7 +1163,7 @@ twe_start(struct twe_request *tr) * Can be called at any interrupt level, with or without interrupts enabled. */ static void -twe_done(struct twe_softc *sc) +twe_done(struct twe_softc *sc, int startio) { TWE_Response_Queue rq; TWE_Command *cmd; @@ -1198,7 +1199,7 @@ twe_done(struct twe_softc *sc) } /* if we've completed any commands, try posting some more */ - if (found) + if (found && startio) twe_startio(sc); /* handle completion and timeouts */ @@ -1768,7 +1769,6 @@ twe_check_bits(struct twe_softc *sc, u_int32_t status_reg) static char * twe_format_aen(struct twe_softc *sc, u_int16_t aen) { - static char buf[80]; device_t child; char *code, *msg; @@ -1785,25 +1785,28 @@ twe_format_aen(struct twe_softc *sc, u_int16_t aen) case 'c': if ((child = sc->twe_drive[TWE_AEN_UNIT(aen)].td_disk) != NULL) { - sprintf(buf, "twed%d: %s", device_get_unit(child), msg); + snprintf(sc->twe_aen_buf, sizeof(sc->twe_aen_buf), "twed%d: %s", + device_get_unit(child), msg); } else { - sprintf(buf, "twe%d: %s for unknown unit %d", device_get_unit(sc->twe_dev), - msg, TWE_AEN_UNIT(aen)); + snprintf(sc->twe_aen_buf, sizeof(sc->twe_aen_buf), + "twe%d: %s for unknown unit %d", device_get_unit(sc->twe_dev), + msg, TWE_AEN_UNIT(aen)); } - return(buf); + return(sc->twe_aen_buf); case 'p': - sprintf(buf, "twe%d: port %d: %s", device_get_unit(sc->twe_dev), TWE_AEN_UNIT(aen), - msg); - return(buf); + snprintf(sc->twe_aen_buf, sizeof(sc->twe_aen_buf), + "twe%d: port %d: %s", device_get_unit(sc->twe_dev), + TWE_AEN_UNIT(aen), msg); + return(sc->twe_aen_buf); case 'x': default: break; } - sprintf(buf, "unknown AEN 0x%x", aen); - return(buf); + snprintf(sc->twe_aen_buf, sizeof(sc->twe_aen_buf), "unknown AEN 0x%x", aen); + return(sc->twe_aen_buf); } /******************************************************************************** |
