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megasas: Implement DCMD_CLUSTER_RESET_LD

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Some implementations use DCMD_CLUSTER_RESET_LD to simulate
a device reset.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[Compare against id, not lun. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Hannes Reinecke 2014-10-29 13:00:13 +01:00 committed by Paolo Bonzini
parent 96f8f23a1e
commit 200b6966cd
1 changed files with 15 additions and 1 deletions
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16
hw/scsi/megasas.c
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@ -1416,9 +1416,23 @@ static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd)
return MFI_STAT_OK; return MFI_STAT_OK;
} }
/* Some implementations use CLUSTER RESET LD to simulate a device reset */
static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd) static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd)
{ {
return MFI_STAT_INVALID_DCMD; uint16_t target_id;
int i;
/* mbox0 contains the device index */
target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
trace_megasas_dcmd_reset_ld(cmd->index, target_id);
for (i = 0; i < s->fw_cmds; i++) {
MegasasCmd *tmp_cmd = &s->frames[i];
if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) {
SCSIDevice *d = tmp_cmd->req->dev;
qdev_reset_all(&d->qdev);
}
}
return MFI_STAT_OK;
} }
static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd) static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)