diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-07-06 10:58:03 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-07-06 10:36:27 -0500 |
| commit | 680a34eeb8f2d455121c67697fca146440e61612 (patch) | |
| tree | 15fa978d5287cdf45ca44884afa7922a8499fcef /hw/lsi53c895a.c | |
| parent | 262ea18e890d51b8f86157f8e4aeb162b9ef2ad8 (diff) | |
scsi: Fix SCSI bus reset
When the controller raises the SCSI reset line, we have to perform the
requested reset on all disks attached to the controller's bus. Moreover,
reset is edge triggered, so avoid repeating it if the line was already
high.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/lsi53c895a.c')
| -rw-r--r-- | hw/lsi53c895a.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c index 1bb1caf478..bd7b661426 100644 --- a/hw/lsi53c895a.c +++ b/hw/lsi53c895a.c @@ -1590,8 +1590,19 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val) BADF("Immediate Arbritration not implemented\n"); } if (val & LSI_SCNTL1_RST) { - s->sstat0 |= LSI_SSTAT0_RST; - lsi_script_scsi_interrupt(s, LSI_SIST0_RST, 0); + if (!(s->sstat0 & LSI_SSTAT0_RST)) { + DeviceState *dev; + int id; + + for (id = 0; id < s->bus.ndev; id++) { + if (s->bus.devs[id]) { + dev = &s->bus.devs[id]->qdev; + dev->info->reset(dev); + } + } + s->sstat0 |= LSI_SSTAT0_RST; + lsi_script_scsi_interrupt(s, LSI_SIST0_RST, 0); + } } else { s->sstat0 &= ~LSI_SSTAT0_RST; } |