diff options
| author |   csapuntz <csapuntz@openbsd.org> | 1999-10-29 17:12:23 +0000 |
|---|---|---|
| committer | csapuntz <csapuntz@openbsd.org> | 1999-10-29 17:12:23 +0000 |
| commit | fd3c9972dc160996d1a44bdfd74b7d25a10523a0 (patch) | |
| tree | 699e86541c23502a7d5a89351103d3a745e3a062 | |
| parent | Change wdc_input_bytes and wdc_output_bytes to use (diff) | |
| download | wireguard-openbsd-fd3c9972dc160996d1a44bdfd74b7d25a10523a0.tar.xz wireguard-openbsd-fd3c9972dc160996d1a44bdfd74b7d25a10523a0.zip | |
Added diagnostic: "length 0 transfer in data phase"
Changed SCSI XS_TIMEOUT error to SCSI XS_RESET error to better reflect
that we had to reset the bus
Don't downgrade DMA modes if the transfer that failed wasn't using DMA
| -rw-r--r-- | sys/dev/atapiscsi/atapiscsi.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sys/dev/atapiscsi/atapiscsi.c b/sys/dev/atapiscsi/atapiscsi.c index a4c0d025ca0..74370f81976 100644 --- a/sys/dev/atapiscsi/atapiscsi.c +++ b/sys/dev/atapiscsi/atapiscsi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: atapiscsi.c,v 1.15 1999/10/29 01:15:16 deraadt Exp $ */ +/* $OpenBSD: atapiscsi.c,v 1.16 1999/10/29 17:12:23 csapuntz Exp $ */ /* * This code is derived from code with the copyright below. @@ -753,8 +753,11 @@ wdc_atapi_intr_drq(chp, xfer, irq) WDCDEBUG_PRINT(("PHASE_DATA\n"), DEBUG_INTR); - if (len == 0) + if (len == 0) { + printf("wdc_atapi_intr_drq: length 0 transfer in " + "data phase\n"); goto abort_data; + } if (xfer->c_bcount >= len) { /* Common case */ @@ -808,7 +811,7 @@ wdc_atapi_intr_drq(chp, xfer, irq) drvp->n_dmaerrs++; } - sc_xfer->error = XS_TIMEOUT; + sc_xfer->error = XS_RESET; wdc_atapi_reset(chp, xfer); return (1); @@ -1121,6 +1124,7 @@ wdc_atapi_done(chp, xfer) struct scsi_xfer *sc_xfer = xfer->cmd; int need_done = xfer->c_flags & C_NEEDDONE; struct ata_drive_datas *drvp = &chp->ch_drive[xfer->drive]; + int doing_dma = xfer->c_flags & C_DMA; WDCDEBUG_PRINT(("wdc_atapi_done %s:%d:%d: flags 0x%x\n", chp->wdc->sc_dev.dv_xname, chp->channel, xfer->drive, @@ -1131,9 +1135,12 @@ wdc_atapi_done(chp, xfer) if (drvp->n_dmaerrs || (sc_xfer->error != XS_NOERROR && sc_xfer->error != XS_SENSE && sc_xfer->error != XS_SHORTSENSE)) { +#if 0 printf("wdc_atapi_done: sc_xfer->error %d\n", sc_xfer->error); +#endif drvp->n_dmaerrs = 0; - wdc_downgrade_mode(drvp); + if (doing_dma) + wdc_downgrade_mode(drvp); } if (need_done) { |