diff options
| author |   Björn Töpel <bjorn.topel@intel.com> | 2019-01-24 19:59:39 +0100 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-01-25 01:50:03 +0100 |
| commit | a36b38aa2af61146ea80980a01cf6e952ab021c1 (patch) | |
| tree | 910d7378db7613ea6d36759dce35211dfb9766b8 /include | |
| parent | xsk: add id to umem (diff) | |
| download | linux-dev-a36b38aa2af61146ea80980a01cf6e952ab021c1.tar.xz linux-dev-a36b38aa2af61146ea80980a01cf6e952ab021c1.zip | |
xsk: add sock_diag interface for AF_XDP
This patch adds the 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 user-space ABI is defined in linux/xdp_diag.h and includes netlink
request and response structs. The request can query sockets and the
response contains socket information about the rings, umems, inode and
more.
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/xdp_diag.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/uapi/linux/xdp_diag.h b/include/uapi/linux/xdp_diag.h new file mode 100644 index 000000000000..78b2591a7782 --- /dev/null +++ b/include/uapi/linux/xdp_diag.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * xdp_diag: interface for query/monitor XDP sockets + * Copyright(c) 2019 Intel Corporation. + */ + +#ifndef _LINUX_XDP_DIAG_H +#define _LINUX_XDP_DIAG_H + +#include <linux/types.h> + +struct xdp_diag_req { + __u8 sdiag_family; + __u8 sdiag_protocol; + __u16 pad; + __u32 xdiag_ino; + __u32 xdiag_show; + __u32 xdiag_cookie[2]; +}; + +struct xdp_diag_msg { + __u8 xdiag_family; + __u8 xdiag_type; + __u16 pad; + __u32 xdiag_ino; + __u32 xdiag_cookie[2]; +}; + +#define XDP_SHOW_INFO (1 << 0) /* Basic information */ +#define XDP_SHOW_RING_CFG (1 << 1) +#define XDP_SHOW_UMEM (1 << 2) +#define XDP_SHOW_MEMINFO (1 << 3) + +enum { + XDP_DIAG_NONE, + XDP_DIAG_INFO, + XDP_DIAG_UID, + XDP_DIAG_RX_RING, + XDP_DIAG_TX_RING, + XDP_DIAG_UMEM, + XDP_DIAG_UMEM_FILL_RING, + XDP_DIAG_UMEM_COMPLETION_RING, + XDP_DIAG_MEMINFO, + __XDP_DIAG_MAX, +}; + +#define XDP_DIAG_MAX (__XDP_DIAG_MAX - 1) + +struct xdp_diag_info { + __u32 ifindex; + __u32 queue_id; +}; + +struct xdp_diag_ring { + __u32 entries; /*num descs */ +}; + +#define XDP_DU_F_ZEROCOPY (1 << 0) + +struct xdp_diag_umem { + __u64 size; + __u32 id; + __u32 num_pages; + __u32 chunk_size; + __u32 headroom; + __u32 ifindex; + __u32 queue_id; + __u32 flags; + __u32 refs; +}; + +#endif /* _LINUX_XDP_DIAG_H */ |