aboutsummaryrefslogtreecommitdiff
path: root/docs/specs/vhost-user.txt
AgeCommit message (Collapse)Author
2015-06-01vhost-user: add multi queue supportOuyang Changchun
Based on patch by Nikolay Nikolaev: Vhost-user will implement the multi queue support in a similar way to what vhost already has - a separate thread for each queue. To enable the multi queue functionality - a new command line parameter "queues" is introduced for the vhost-user netdev. Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com> Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-29vhost-user: typo fixupsMichael S. Tsirkin
Fix typo in field name. Strip two consequitive empty lines. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-29vhost-user: fix regions provied with VHOST_USER_SET_MEM_TABLE messageDamjan Marion
Old code was affected by memory gaps which resulted in buffer pointers pointing to address outside of the mapped regions. Here we are introducing following changes: - new function qemu_get_ram_block_host_ptr() returns host pointer to the ram block, it is needed to calculate offset of specific region in the host memory - new field mmap_offset is added to the VhostUserMemoryRegion. It contains offset where specific region starts in the mapped memory. As there is stil no wider adoption of vhost-user agreement was made that we will not bump version number due to this change - other fileds in VhostUserMemoryRegion struct are not changed, as they are all needed for usermode app implementation - region data is not taken from ram_list.blocks anymore, instead we use region data which is alredy calculated for use in vhost-net - Now multiple regions can have same FD and user applicaton can call mmap() multiple times with the same FD but with different offset (user needs to take care for offset page alignment) Signed-off-by: Damjan Marion <damarion@cisco.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Damjan Marion <damarion@cisco.com>
2014-06-29vhost-user: fix wrong ids in documentationDamjan Marion
Signed-off-by: Damjan Marion <damarion@cisco.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19Add vhost-user protocol documentationNikolay Nikolaev
This document describes the basic message format used by vhost-user for communication over a unix domain socket. The protocol is based on the existing ioctl interface used for the kernel version of vhost. Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com> Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>