diff options
| author | Jakub Kicinski | 2017-11-20 15:21:54 -0800 |
|---|---|---|
| committer | Daniel Borkmann | 2017-11-21 00:37:35 +0100 |
| commit | 288b3de55aace830f13280985ec9e6bcbff33b1b (patch) | |
| tree | 9b8376e3af3c10bbbe144cae48ea5eb5bce8fa27 /drivers/net | |
| parent | 1f6f4cb7ba219b00a3fa9afe8049fa16444d8b52 (diff) | |
bpf: offload: move offload device validation out to the drivers
With TC shared block changes we can't depend on correct netdev
pointer being available in cls_bpf. Move the device validation
to the driver. Core will only make sure that offloaded programs
are always attached in the driver (or in HW by the driver). We
trust that drivers which implement offload callbacks will perform
necessary checks.
Moving the checks to the driver is generally a useful thing,
in practice the check should be against a switchdev instance,
not a netdev, given that most ASICs will probably allow using
the same program on many ports.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/offload.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c index b6cee71f49d3..bc879aeb62d4 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c @@ -214,8 +214,14 @@ int nfp_net_bpf_offload(struct nfp_net *nn, struct bpf_prog *prog, { int err; - if (prog && !prog->aux->offload) - return -EINVAL; + if (prog) { + struct bpf_dev_offload *offload = prog->aux->offload; + + if (!offload) + return -EINVAL; + if (offload->netdev != nn->dp.netdev) + return -EINVAL; + } if (prog && old_prog) { u8 cap; |