From: Artyom Tarasenko <atar4qemu@googlemail.com>
To: qemu-devel <qemu-devel@nongnu.org>
Subject: [Qemu-devel] [patch] esp.c fast SCSI-bus reset
Date: Fri, 24 Jul 2009 12:21:53 +0200 [thread overview]
Message-ID: <fb8d4f70907240321k632527c3lea0550929e91a50c@mail.gmail.com> (raw)
It seems to make a little sense to raise an interrupt still having
"bus reset" status, since it makes the host think the bus is busy.
The proper way would be to tell all the scsi devices to reset before
the interrupt.
The patch makes scsi probe to come a little further when using OBP
under sparc32.
--- hw/esp.c.master 2009-07-24 00:28:30.146422134 +0200
+++ hw/esp.c 2009-07-24 12:08:48.585546871 +0200
@@ -505,7 +505,7 @@
break;
case CMD_BUSRESET:
DPRINTF("Bus reset (%2.2x)\n", val);
- s->rregs[ESP_RINTR] = INTR_RST;
+ s->rregs[ESP_RINTR] = 0;
if (!(s->wregs[ESP_CFG1] & CFG1_RESREPT)) {
esp_raise_irq(s);
}
next reply other threads:[~2009-07-24 10:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-24 10:21 Artyom Tarasenko [this message]
2009-07-26 13:40 ` [Qemu-devel] [patch] esp.c fast SCSI-bus reset Blue Swirl
2009-07-28 18:14 ` Artyom Tarasenko
2009-07-31 7:44 ` Blue Swirl
2009-07-31 8:29 ` Artyom Tarasenko
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