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authorFam Zheng <famz@redhat.com>2014-09-23 15:49:28 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2014-09-30 11:11:20 +0200
commit1880ad4f4e3b49f15c55e816d66b9690b3ede00c (patch)
treef02488a1e153e469f00ac5c4527c0f6ba005d3cb /include/hw/virtio
parent359eea71d98e7f2cf9efb5e65bb59a240bedb131 (diff)
downloadqemu-1880ad4f4e3b49f15c55e816d66b9690b3ede00c.tar.gz
virtio-scsi: Batched prepare for cmd reqs
Queue the popped requests while calling virtio_scsi_handle_cmd_req_prepare(), then submit them after all prepared. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/hw/virtio')
-rw-r--r--include/hw/virtio/virtio-scsi.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index 1cc759a644..60dbfc99a8 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -213,6 +213,10 @@ typedef struct VirtIOSCSIReq {
VirtQueueElement elem;
/* Set by dataplane code. */
VirtIOSCSIVring *vring;
+
+ /* Used for two-stage request submission */
+ QTAILQ_ENTRY(VirtIOSCSIReq) next;
+
SCSIRequest *sreq;
size_t resp_size;
enum SCSIXferMode mode;