[RFC v2 0/4] Support reconnection in vduse

These patches add the reconnect support in vduse, The steps is map the pages from kernel to userspace, userspace app will sync the reconnection status and vq_info in the pages Also, add the new IOCTL VDUSE_GET_RECONNECT_INFO userspace app will use this information to mmap the memory

Will send the patch for DPDK later

Tested in vduse + dpdk test-pmd

Signed-off-by: Cindy Lu lulu@redhat.com

Cindy Lu (4): vduse: Add function to get/free the pages for reconnection vduse: Add file operation for mmap vduse: update the vq_info in ioctl vduse: Add new ioctl VDUSE_GET_RECONNECT_INFO

drivers/vdpa/vdpa_user/vduse_dev.c | 177 +++++++++++++++++++++++++++++ include/uapi/linux/vduse.h | 21 ++++ 2 files changed, 198 insertions(+)