[dpdk-dev] [PATCH 00/12] qemu vhost-user support
Huawei Xie
huawei.xie at intel.com
Fri Jan 30 07:36:15 CET 2015
vhost-user supports passing vring information to a seperate vhost enabled
process, normally a user space vSwitch, through unix domain socket.
In previous DPDK version, we implement a user space character device driver
vhost-cuse in user space DPDK process. vring informations are passed to the
driver through ioctl call, including eventfds for interrupt injection and
host notification. We need to develop a kernel module to copy that fd from
qemu into our process. We also need some trick to map guest memory.
(TODO: kickfd/callfd is reversed which causes confusion)
known issue in vhost-user implementation in QEMU, reported by haifeng.lin at huawei.com
* QEMU doesn't send correct memory region information with multiple numa node configuration
http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg01454.html
Thanks Tetsuya for reporting the issue that "FD_ISSET would crash when receive -1
as fd on Ubuntu 14.04".
Huawei Xie (12):
enable VIRTIO_NET_F_CTRL_RX
create vhost_cuse directory and move vhost-net-cdev.c into vhost_cuse
rename vhost-net-cdev.h to vhost-net.h
move fd copying(from qemu process into vhost process) to eventfd_copy.c
copy host_memory_map from virtio-net.c to a new file virtio-net-cdev.c
make host_memory_map more generic
split set_memory_table into two parts
add select based event driven processing
free memory when receive new set_memory_table message
vhost user support
support dev->ifname in vhost-user
support calling rte_vhost_driver_register after rte_vhost_driver_session_start
lib/librte_vhost/Makefile | 8 +-
lib/librte_vhost/rte_virtio_net.h | 5 +-
lib/librte_vhost/vhost-net-cdev.c | 389 ---------------------
lib/librte_vhost/vhost-net-cdev.h | 113 -------
lib/librte_vhost/vhost-net.h | 121 +++++++
lib/librte_vhost/vhost_cuse/eventfd_copy.c | 89 +++++
lib/librte_vhost/vhost_cuse/eventfd_copy.h | 40 +++
lib/librte_vhost/vhost_cuse/vhost-net-cdev.c | 417 +++++++++++++++++++++++
lib/librte_vhost/vhost_cuse/virtio-net-cdev.c | 401 ++++++++++++++++++++++
lib/librte_vhost/vhost_cuse/virtio-net-cdev.h | 48 +++
lib/librte_vhost/vhost_rxtx.c | 2 +-
lib/librte_vhost/vhost_user/fd_man.c | 234 +++++++++++++
lib/librte_vhost/vhost_user/fd_man.h | 66 ++++
lib/librte_vhost/vhost_user/vhost-net-user.c | 469 ++++++++++++++++++++++++++
lib/librte_vhost/vhost_user/vhost-net-user.h | 106 ++++++
lib/librte_vhost/vhost_user/virtio-net-user.c | 322 ++++++++++++++++++
lib/librte_vhost/vhost_user/virtio-net-user.h | 49 +++
lib/librte_vhost/virtio-net.c | 455 +++----------------------
lib/librte_vhost/virtio-net.h | 43 +++
19 files changed, 2460 insertions(+), 917 deletions(-)
delete mode 100644 lib/librte_vhost/vhost-net-cdev.c
delete mode 100644 lib/librte_vhost/vhost-net-cdev.h
create mode 100644 lib/librte_vhost/vhost-net.h
create mode 100644 lib/librte_vhost/vhost_cuse/eventfd_copy.c
create mode 100644 lib/librte_vhost/vhost_cuse/eventfd_copy.h
create mode 100644 lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
create mode 100644 lib/librte_vhost/vhost_cuse/virtio-net-cdev.c
create mode 100644 lib/librte_vhost/vhost_cuse/virtio-net-cdev.h
create mode 100644 lib/librte_vhost/vhost_user/fd_man.c
create mode 100644 lib/librte_vhost/vhost_user/fd_man.h
create mode 100644 lib/librte_vhost/vhost_user/vhost-net-user.c
create mode 100644 lib/librte_vhost/vhost_user/vhost-net-user.h
create mode 100644 lib/librte_vhost/vhost_user/virtio-net-user.c
create mode 100644 lib/librte_vhost/vhost_user/virtio-net-user.h
create mode 100644 lib/librte_vhost/virtio-net.h
--
1.8.1.4
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