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authorMagnus Karlsson2018-05-02 13:01:32 +0200
committerAlexei Starovoitov2018-05-04 00:55:24 +0200
commitf61459030ec7fffdaa3c462cc0f728eef11b4d05 (patch)
treeaf95ebd390dd699a4e21c8e33dbe7b5f5a77ceab /include/uapi/linux/if_xdp.h
parentxsk: add umem completion queue support and mmap (diff)
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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/linux/if_xdp.h')
-rw-r--r--include/uapi/linux/if_xdp.h2
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