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[bpf-next,03/11] net: xdp: added bpf_netdev_command XDP_{QUERY, SETUP}_XSK_UMEM

Message ID 20180604120601.18123-4-bjorn.topel@gmail.com
State Awaiting Upstream
Headers show
Series AF_XDP: introducing zero-copy support | expand

Commit Message

Björn Töpel June 4, 2018, 12:05 p.m. UTC 
From: Björn Töpel <bjorn.topel@intel.com>

Extend ndo_bpf with two new commands used for query zero-copy support
and register an UMEM to a queue_id of a netdev.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
---
 include/linux/netdevice.h | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 7f17785a59d7..85d91cc41cdf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -817,10 +817,13 @@  enum bpf_netdev_command {
 	BPF_OFFLOAD_DESTROY,
 	BPF_OFFLOAD_MAP_ALLOC,
 	BPF_OFFLOAD_MAP_FREE,
+	XDP_QUERY_XSK_UMEM,
+	XDP_SETUP_XSK_UMEM,
 };
 
 struct bpf_prog_offload_ops;
 struct netlink_ext_ack;
+struct xdp_umem;
 
 struct netdev_bpf {
 	enum bpf_netdev_command command;
@@ -851,6 +854,11 @@  struct netdev_bpf {
 		struct {
 			struct bpf_offloaded_map *offmap;
 		};
+		/* XDP_SETUP_XSK_UMEM */
+		struct {
+			struct xdp_umem *umem;
+			u16 queue_id;
+		} xsk;
 	};
 };