From: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
This implements capabilities exchange between host and client.
As at the moment no capability is supported, put zero flags everywhere
and return.
Signed-off-by: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
---
hw/scsi/spapr_vscsi.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c
index c5ff794..cc35b1b 100644
--- a/hw/scsi/spapr_vscsi.c
+++ b/hw/scsi/spapr_vscsi.c
@@ -919,6 +919,34 @@ static int vscsi_send_adapter_info(VSCSIState *s,
vscsi_req *req)
return vscsi_send_iu(s, req, sizeof(*sinfo), VIOSRP_MAD_FORMAT);
}
+static int vscsi_send_capabilities(VSCSIState *s, vscsi_req *req)
+{
+ struct viosrp_capabilities *vcap;
+ struct capabilities cap;
+ int rc;
+
+ vcap = &req->iu.mad.capabilities;
+ rc = spapr_vio_dma_read(&s->vdev, be64_to_cpu(vcap->buffer),
+ &cap, be16_to_cpu(vcap->common.length));
+ if (rc) {
+ fprintf(stderr, "vscsi_send_capabilities: DMA write failure !\n");
+ }
+
+ cap.flags = 0;
+ cap.migration.ecl = 0;
+ cap.reserve.type = 0;
+ cap.migration.common.server_support = 0;
+ cap.reserve.common.server_support = 0;
+ rc = spapr_vio_dma_write(&s->vdev, be64_to_cpu(vcap->buffer),
+ &cap, be16_to_cpu(vcap->common.length));
+ if (rc) {
+ fprintf(stderr, "vscsi_send_capabilities: DMA write failure !\n");
+ }
+ vcap->common.status = rc ? cpu_to_be32(1) : 0;
+
+ return vscsi_send_iu(s, req, sizeof(*vcap), VIOSRP_MAD_FORMAT);
+}
+
static int vscsi_handle_mad_req(VSCSIState *s, vscsi_req *req)
{
union mad_iu *mad = &req->iu.mad;
@@ -939,6 +967,9 @@ static int vscsi_handle_mad_req(VSCSIState *s, vscsi_req
*req)
mad->host_config.common.status = cpu_to_be16(1);
vscsi_send_iu(s, req, sizeof(mad->host_config), VIOSRP_MAD_FORMAT);
break;
+ case VIOSRP_CAPABILITIES_TYPE:
+ vscsi_send_capabilities(s, req);
+ break;
default:
fprintf(stderr, "VSCSI: Unknown MAD type %02x\n",
be32_to_cpu(mad->empty_iu.common.type));
--
1.8.4.rc4
