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[src/jdolecek-ncq]: src/sys/dev must drop channel lock before calling ata_dma...
details: https://anonhg.NetBSD.org/src/rev/4f431b3784ff
branches: jdolecek-ncq
changeset: 823045:4f431b3784ff
user: jdolecek <jdolecek%NetBSD.org@localhost>
date: Sat Sep 30 21:32:31 2017 +0000
description:
must drop channel lock before calling ata_dmaerr() to avoid 'locking against
myself' in case of consecutive errors from ata_reset_channel() called via
ata_downgrade_mode()
diffstat:
sys/dev/ata/ata_wdc.c | 10 +++++++---
sys/dev/ic/mvsata.c | 22 +++++++++++++---------
sys/dev/scsipi/atapi_wdc.c | 16 ++++++++--------
3 files changed, 28 insertions(+), 20 deletions(-)
diffs (242 lines):
diff -r b837719b3f5b -r 4f431b3784ff sys/dev/ata/ata_wdc.c
--- a/sys/dev/ata/ata_wdc.c Fri Sep 29 20:07:40 2017 +0000
+++ b/sys/dev/ata/ata_wdc.c Sat Sep 30 21:32:31 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ata_wdc.c,v 1.105.6.11 2017/09/26 20:15:36 jdolecek Exp $ */
+/* $NetBSD: ata_wdc.c,v 1.105.6.12 2017/09/30 21:32:31 jdolecek Exp $ */
/*
* Copyright (c) 1998, 2001, 2003 Manuel Bouyer.
@@ -54,7 +54,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ata_wdc.c,v 1.105.6.11 2017/09/26 20:15:36 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ata_wdc.c,v 1.105.6.12 2017/09/30 21:32:31 jdolecek Exp $");
#include "opt_ata.h"
#include "opt_wdc.h"
@@ -718,14 +718,18 @@
}
if (drv_err != WDC_ATA_ERR)
goto end;
- if (ata_bio->r_error & WDCE_CRC || ata_bio->error == ERR_DMA)
+ if (ata_bio->r_error & WDCE_CRC || ata_bio->error == ERR_DMA) {
+ ata_channel_unlock(chp);
ata_dmaerr(drvp, (xfer->c_flags & C_POLL) ? AT_POLL : 0);
+ goto err;
+ }
}
#endif /* NATA_DMA */
/* if we had an error, end */
if (drv_err == WDC_ATA_ERR) {
ata_channel_unlock(chp);
+err:
wdc_ata_bio_done(chp, xfer);
return 1;
}
diff -r b837719b3f5b -r 4f431b3784ff sys/dev/ic/mvsata.c
--- a/sys/dev/ic/mvsata.c Fri Sep 29 20:07:40 2017 +0000
+++ b/sys/dev/ic/mvsata.c Sat Sep 30 21:32:31 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mvsata.c,v 1.35.6.31 2017/09/27 07:19:34 jdolecek Exp $ */
+/* $NetBSD: mvsata.c,v 1.35.6.32 2017/09/30 21:32:31 jdolecek Exp $ */
/*
* Copyright (c) 2008 KIYOHARA Takashi
* All rights reserved.
@@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mvsata.c,v 1.35.6.31 2017/09/27 07:19:34 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mvsata.c,v 1.35.6.32 2017/09/30 21:32:31 jdolecek Exp $");
#include "opt_mvsata.h"
@@ -1426,14 +1426,18 @@
if (xfer->c_flags & C_DMA) {
if (ata_bio->error == NOERROR)
goto end;
- if (ata_bio->error == ERR_DMA)
+ if (ata_bio->error == ERR_DMA) {
+ ata_channel_unlock(chp);
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
+ goto err;
+ }
}
/* if we had an error, end */
if (ata_bio->error != NOERROR) {
ata_channel_unlock(chp);
+err:
mvsata_bio_done(chp, xfer);
return 1;
}
@@ -2349,10 +2353,10 @@
aprint_error_dev(atac->atac_dev,
"channel %d: device timeout, c_bcount=%d, c_skip=%d\n",
chp->ch_channel, xfer->c_bcount, xfer->c_skip);
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA)
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
mvsata_atapi_reset(chp, xfer);
return 1;
@@ -2363,8 +2367,8 @@
* and reset device.
*/
if ((xfer->c_flags & C_TIMEOU) && (xfer->c_flags & C_DMA)) {
+ ata_channel_unlock(chp);
ata_dmaerr(drvp, (xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
mvsata_atapi_reset(chp, xfer);
return (1);
@@ -2425,10 +2429,10 @@
aprint_error_dev(atac->atac_dev,
"channel %d drive %d: bad data phase DATAOUT\n",
chp->ch_channel, xfer->c_drive);
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA)
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
mvsata_atapi_reset(chp, xfer);
return 1;
@@ -2461,10 +2465,10 @@
aprint_error_dev(atac->atac_dev,
"channel %d drive %d: bad data phase DATAIN\n",
chp->ch_channel, xfer->c_drive);
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA)
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
mvsata_atapi_reset(chp, xfer);
return 1;
@@ -2515,10 +2519,10 @@
sc_xfer->error = XS_SHORTSENSE;
sc_xfer->sense.atapi_sense = ATACH_ERR(tfd);
} else {
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA)
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
mvsata_atapi_reset(chp, xfer);
return (1);
@@ -2655,9 +2659,9 @@
sc_xfer->status = SCSI_CHECK;
} else
if (wdc->dma_status & (WDC_DMAST_NOIRQ | WDC_DMAST_ERR)) {
+ ata_channel_unlock(chp);
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
mvsata_atapi_reset(chp, xfer);
return;
diff -r b837719b3f5b -r 4f431b3784ff sys/dev/scsipi/atapi_wdc.c
--- a/sys/dev/scsipi/atapi_wdc.c Fri Sep 29 20:07:40 2017 +0000
+++ b/sys/dev/scsipi/atapi_wdc.c Sat Sep 30 21:32:31 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: atapi_wdc.c,v 1.123.4.13 2017/09/10 19:31:15 jdolecek Exp $ */
+/* $NetBSD: atapi_wdc.c,v 1.123.4.14 2017/09/30 21:32:32 jdolecek Exp $ */
/*
* Copyright (c) 1998, 2001 Manuel Bouyer.
@@ -25,7 +25,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: atapi_wdc.c,v 1.123.4.13 2017/09/10 19:31:15 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: atapi_wdc.c,v 1.123.4.14 2017/09/30 21:32:32 jdolecek Exp $");
#ifndef ATADEBUG
#define ATADEBUG
@@ -800,13 +800,13 @@
printf("%s:%d:%d: device timeout, c_bcount=%d, c_skip=%d\n",
device_xname(atac->atac_dev), chp->ch_channel,
xfer->c_drive, xfer->c_bcount, xfer->c_skip);
+ ata_channel_unlock(chp);
#if NATA_DMA
if (xfer->c_flags & C_DMA) {
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
}
#endif
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
wdc_atapi_reset(chp, xfer);
return 1;
@@ -820,8 +820,8 @@
* and reset device.
*/
if ((xfer->c_flags & C_TIMEOU) && (xfer->c_flags & C_DMA)) {
+ ata_channel_unlock(chp);
ata_dmaerr(drvp, (xfer->c_flags & C_POLL) ? AT_POLL : 0);
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
wdc_atapi_reset(chp, xfer);
return (1);
@@ -895,11 +895,11 @@
if ((sc_xfer->xs_control & XS_CTL_DATA_OUT) == 0 ||
(xfer->c_flags & C_DMA) != 0) {
printf("wdc_atapi_intr: bad data phase DATAOUT\n");
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA) {
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
}
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
wdc_atapi_reset(chp, xfer);
return 1;
@@ -945,11 +945,11 @@
if ((sc_xfer->xs_control & XS_CTL_DATA_IN) == 0 ||
(xfer->c_flags & C_DMA) != 0) {
printf("wdc_atapi_intr: bad data phase DATAIN\n");
+ ata_channel_unlock(chp);
if (xfer->c_flags & C_DMA) {
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
}
- ata_channel_unlock(chp);
sc_xfer->error = XS_TIMEOUT;
wdc_atapi_reset(chp, xfer);
return 1;
@@ -1016,13 +1016,13 @@
sc_xfer->error = XS_SHORTSENSE;
sc_xfer->sense.atapi_sense = ATACH_ERR(tfd);
} else {
+ ata_channel_unlock(chp);
#if NATA_DMA
if (xfer->c_flags & C_DMA) {
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
}
#endif
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
wdc_atapi_reset(chp, xfer);
return (1);
@@ -1102,11 +1102,11 @@
#if NATA_DMA || NATA_PIOBM
else if (wdc->dma_status &
(WDC_DMAST_NOIRQ | WDC_DMAST_ERR)) {
+ ata_channel_unlock(chp);
#if NATA_DMA
ata_dmaerr(drvp,
(xfer->c_flags & C_POLL) ? AT_POLL : 0);
#endif
- ata_channel_unlock(chp);
sc_xfer->error = XS_RESET;
wdc_atapi_reset(chp, xfer);
return;
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