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| author | Stefan Hajnoczi | 2020-08-18 16:33:45 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2020-08-27 14:29:13 +0200 |
| commit | 4e5163bd844429711b4d60d51030ab83048d80cd (patch) | |
| tree | 29820fc1a17a409f04402367a8cbcef2b78d595f /include/hw/virtio/virtio-scsi.h | |
| parent | virtio-pci: add virtio_pci_optimal_num_queues() helper (diff) | |
| download | qemu-4e5163bd844429711b4d60d51030ab83048d80cd.tar.gz qemu-4e5163bd844429711b4d60d51030ab83048d80cd.tar.xz qemu-4e5163bd844429711b4d60d51030ab83048d80cd.zip | |
virtio-scsi: introduce a constant for fixed virtqueues
The event and control virtqueues are always present, regardless of the
multi-queue configuration. Define a constant so that virtqueue number
calculations are easier to read.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20200818143348.310613-5-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/virtio/virtio-scsi.h')
| -rw-r--r-- | include/hw/virtio/virtio-scsi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h index 24e768909d..9f293bcb80 100644 --- a/include/hw/virtio/virtio-scsi.h +++ b/include/hw/virtio/virtio-scsi.h @@ -36,6 +36,9 @@ #define VIRTIO_SCSI_MAX_TARGET 255 #define VIRTIO_SCSI_MAX_LUN 16383 +/* Number of virtqueues that are always present */ +#define VIRTIO_SCSI_VQ_NUM_FIXED 2 + typedef struct virtio_scsi_cmd_req VirtIOSCSICmdReq; typedef struct virtio_scsi_cmd_resp VirtIOSCSICmdResp; typedef struct virtio_scsi_ctrl_tmf_req VirtIOSCSICtrlTMFReq; |