From: Björn Töpel <bjorn.to...@intel.com>
This series adds an AF_XDP sock_diag interface for querying sockets
from user-space. Tools like iproute2 ss(8) can use this interface to
list open AF_XDP sockets.
The diagnostic provides information about the Rx/Tx/fill/completetion
rings, umem, memory usage and such. For a complete list, please refer
to the xsk_diag.c file.
The AF_XDP sock_diag interface is optional, and can be built as a
module.
A separate patch series, adding ss(8) iproute2 support, will follow.
v1->v2: * Removed extra newline
* Zero-out all user-space facing structures prior setting the
members
* Added explicit "pad" member in _msg struct
* Removed unused variable "req" in xsk_diag_handler_dump()
Thanks to Daniel for reviewing the series!
Cheers,
Björn
Björn Töpel (3):
net: xsk: track AF_XDP sockets on a per-netns list
xsk: add id to umem
xsk: add sock_diag interface for AF_XDP
include/net/net_namespace.h | 4 +
include/net/netns/xdp.h | 13 +++
include/net/xdp_sock.h | 1 +
include/uapi/linux/xdp_diag.h | 72 +++++++++++++
net/xdp/Kconfig | 8 ++
net/xdp/Makefile | 1 +
net/xdp/xdp_umem.c | 13 +++
net/xdp/xsk.c | 36 ++++++-
net/xdp/xsk.h | 12 +++
net/xdp/xsk_diag.c | 191 ++++++++++++++++++++++++++++++++++
10 files changed, 346 insertions(+), 5 deletions(-)
create mode 100644 include/net/netns/xdp.h
create mode 100644 include/uapi/linux/xdp_diag.h
create mode 100644 net/xdp/xsk.h
create mode 100644 net/xdp/xsk_diag.c
--
2.19.1
