megasas: Clear unit attention on initial reset
The EFI firmware doesn't handle unit attentions properly,
so we need to clear the Power On/Reset unit attention upon
initial reset.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 58e29ae..57d5288 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -2202,11 +2202,26 @@
int i;
MegasasCmd *cmd;
- trace_megasas_reset();
+ trace_megasas_reset(s->fw_state);
for (i = 0; i < s->fw_cmds; i++) {
cmd = &s->frames[i];
megasas_abort_command(cmd);
}
+ if (s->fw_state == MFI_FWSTATE_READY) {
+ BusChild *kid;
+
+ /*
+ * The EFI firmware doesn't handle UA,
+ * so we need to clear the Power On/Reset UA
+ * after the initial reset.
+ */
+ QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
+ SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
+
+ sdev->unit_attention = SENSE_CODE(NO_SENSE);
+ scsi_device_unit_attention_reported(sdev);
+ }
+ }
megasas_reset_frames(s);
s->reply_queue_len = s->fw_cmds;
s->reply_queue_pa = 0;
@@ -2334,6 +2349,7 @@
msix_vector_use(dev, 0);
}
+ s->fw_state = MFI_FWSTATE_READY;
if (!s->sas_addr) {
s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) |
IEEE_COMPANY_LOCALLY_ASSIGNED) << 36;
