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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: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-06-21 18:25:03 -07:00 committed by David S. Miller
parent 9bd780f5e0
commit 32d602771b
2 changed files with 4 additions and 2 deletions
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1
include/linux/netdevice.h
View File

@ -820,6 +820,7 @@ struct netdev_xdp {
union {
/* XDP_SETUP_PROG */
struct {
u32 flags;
struct bpf_prog *prog;
struct netlink_ext_ack *extack;
};

5
net/core/dev.c
View File

@ -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);