diff options
| author | Magnus Karlsson <magnus.karlsson@intel.com> | 2018-05-02 14:01:32 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-05-04 01:55:24 +0300 |
| commit | f61459030ec7fffdaa3c462cc0f728eef11b4d05 (patch) | |
| tree | af95ebd390dd699a4e21c8e33dbe7b5f5a77ceab /include/uapi | |
| parent | fe2308328cd2f26ebc986f543796e7d13ae00bc4 (diff) | |
| download | linux-f61459030ec7fffdaa3c462cc0f728eef11b4d05.tar.xz | |
xsk: add Tx queue setup and mmap support
Another setsockopt (XDP_TX_QUEUE) is added to let the process allocate
a queue, where the user process can pass frames to be transmitted by
the kernel.
The mmapping of the queue is done using the XDP_PGOFF_TX_QUEUE offset.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/if_xdp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/if_xdp.h b/include/uapi/linux/if_xdp.h index 71581a139f26..e2ea878d025c 100644 --- a/include/uapi/linux/if_xdp.h +++ b/include/uapi/linux/if_xdp.h @@ -34,6 +34,7 @@ struct sockaddr_xdp { /* XDP socket options */ #define XDP_RX_RING 1 +#define XDP_TX_RING 2 #define XDP_UMEM_REG 3 #define XDP_UMEM_FILL_RING 4 #define XDP_UMEM_COMPLETION_RING 5 @@ -47,6 +48,7 @@ struct xdp_umem_reg { /* Pgoff for mmaping the rings */ #define XDP_PGOFF_RX_RING 0 +#define XDP_PGOFF_TX_RING 0x80000000 #define XDP_UMEM_PGOFF_FILL_RING 0x100000000 #define XDP_UMEM_PGOFF_COMPLETION_RING 0x180000000 |