Il 20/08/2012 11:03, Cong Meng ha scritto: > Each virtio scsi HBA has global request queue limits. But the passthrough > LUNs (scsi-generic) come from different host HBAs may have different request > queue limits. If the guest sends commands that exceed the host limits, the > commands will be rejected by host HAB. > > To address this issue, this patch adds a per-LUN parameter query via the > control > queue, and defines some parameter query types. The driver can query and set > the > needed per-LUN parameters if the device enables this feature. > > Signed-off-by: Cong Meng <m...@linux.vnet.ibm.com> > -- > virtio-spec.lyx | 218 > +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 files changed, 218 insertions(+), 0 deletions(-)
Do you have kernel and QEMU patches for this? That would help me evaluate whether the interface is the correct one. In any case, I'd rather have a single command returning all three values (VIRTIO_SCSI_T_LUN_QUEUE_PARAMS), since it's unlikely that you need just one. Paolo
