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Commit 32d60277 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

xdp: pass XDP flags into install handlers 



Pass XDP flags to the xdp ndo.  This will allow drivers to look
at the mode flags and make decisions about offload.

Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9bd780f5

include/linux/netdevice.h

+1 −0
Original line number Diff line number Diff line
@@ -820,6 +820,7 @@ struct netdev_xdp { 
	union {

		/* XDP_SETUP_PROG */

		struct {

			u32 flags;

			struct bpf_prog *prog;

			struct netlink_ext_ack *extack;

		};

net/core/dev.c

+3 −2
Original line number Diff line number Diff line
@@ -6951,7 +6951,7 @@ bool __dev_xdp_attached(struct net_device *dev, xdp_op_t xdp_op, 
}



static int dev_xdp_install(struct net_device *dev, xdp_op_t xdp_op,

			   struct netlink_ext_ack *extack,

			   struct netlink_ext_ack *extack, u32 flags,

			   struct bpf_prog *prog)

{

	struct netdev_xdp xdp;
@@ -6959,6 +6959,7 @@ static int dev_xdp_install(struct net_device *dev, xdp_op_t xdp_op, 
	memset(&xdp, 0, sizeof(xdp));

	xdp.command = XDP_SETUP_PROG;

	xdp.extack = extack;

	xdp.flags = flags;

	xdp.prog = prog;



	return xdp_op(dev, &xdp);
@@ -7003,7 +7004,7 @@ int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack, 
			return PTR_ERR(prog);

	}



	err = dev_xdp_install(dev, xdp_op, extack, prog);

	err = dev_xdp_install(dev, xdp_op, extack, flags, prog);

	if (err < 0 && prog)

		bpf_prog_put(prog);