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bpf: offload: add priv field for drivers

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Currently bpf_offload_dev does not have any priv pointer, forcing
the drivers to work backwards from the netdev in program metadata.
This is not great given programs are conceptually associated with
the offload device, and it means one or two unnecessary deferences.
Add a priv pointer to bpf_offload_dev.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski
2019-02-12 00:20:39 -08:00
committed by Daniel Borkmann
parent ebbed0f46e
commit dd27c2e3d0
5 changed files with 16 additions and 8 deletions
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5
drivers/net/netdevsim/bpf.c
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@ -248,7 +248,7 @@ static int nsim_bpf_create_prog(struct netdevsim *ns, struct bpf_prog *prog)
static int nsim_bpf_verifier_prep(struct bpf_prog *prog)
{
struct netdevsim *ns = netdev_priv(prog->aux->offload->netdev);
struct netdevsim *ns = bpf_offload_dev_priv(prog->aux->offload->offdev);
if (!ns->bpf_bind_accept)
return -EOPNOTSUPP;
@ -589,7 +589,8 @@ int nsim_bpf_init(struct netdevsim *ns)
if (IS_ERR_OR_NULL(ns->sdev->ddir_bpf_bound_progs))
return -ENOMEM;
ns->sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops);
ns->sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops,
ns);
err = PTR_ERR_OR_ZERO(ns->sdev->bpf_dev);
if (err)
return err;