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[Qemu-devel] [RFC 8/9] virtio-scsi: Set max_target=0 during vhost-scsi o
From: |
Nicholas A. Bellinger |
Subject: |
[Qemu-devel] [RFC 8/9] virtio-scsi: Set max_target=0 during vhost-scsi operation |
Date: |
Tue, 24 Jul 2012 22:34:05 +0000 |
From: Nicholas Bellinger <address@hidden>
This QEMU patch sets VirtIOSCSIConfig->max_target=0 for vhost-scsi operation
to restrict virtio-scsi LLD guest scanning to max_id=0 (a single target ID
instance) when connected to individual tcm_vhost endpoints.
This ensures that virtio-scsi LLD only attempts to scan target IDs up to
VIRTIO_SCSI_MAX_TARGET when connected via virtio-scsi-raw.
Cc: Stefan Hajnoczi <address@hidden>
Cc: Zhi Yong Wu <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Signed-off-by: Nicholas Bellinger <address@hidden>
---
hw/virtio-scsi.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c
index b0adfde..d854998 100644
--- a/hw/virtio-scsi.c
+++ b/hw/virtio-scsi.c
@@ -534,7 +534,11 @@ static void virtio_scsi_get_config(VirtIODevice *vdev,
stl_raw(&scsiconf->sense_size, s->sense_size);
stl_raw(&scsiconf->cdb_size, s->cdb_size);
stl_raw(&scsiconf->max_channel, VIRTIO_SCSI_MAX_CHANNEL);
- stl_raw(&scsiconf->max_target, VIRTIO_SCSI_MAX_TARGET);
+ if (s->vhost_scsi) {
+ stl_raw(&scsiconf->max_target, 0);
+ } else {
+ stl_raw(&scsiconf->max_target, VIRTIO_SCSI_MAX_TARGET);
+ }
stl_raw(&scsiconf->max_lun, VIRTIO_SCSI_MAX_LUN);
}
--
1.7.2.5
- [Qemu-devel] [RFC 2/9] virtio-pci: support host notifiers in TCG mode, (continued)
- [Qemu-devel] [RFC 2/9] virtio-pci: support host notifiers in TCG mode, Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 3/9] virtio-pci: check that event notification worked, Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 4/9] vhost: Pass device path to vhost_dev_init(), Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 5/9] virtio-scsi: Add wwpn and tgpt properties, Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 6/9] virtio-scsi: Open and initialize /dev/vhost-scsi, Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 7/9] virtio-scsi: Start/stop vhost, Nicholas A. Bellinger, 2012/07/24
- [Qemu-devel] [RFC 8/9] virtio-scsi: Set max_target=0 during vhost-scsi operation,
Nicholas A. Bellinger <=
- [Qemu-devel] [RFC 9/9] vhost-scsi: add -vhost-scsi host device, Nicholas A. Bellinger, 2012/07/24
- Re: [Qemu-devel] [RFC 0/9] vhost-scsi: Add support for host virtualized target, Zhi Yong Wu, 2012/07/24