static int nfp_bpf_setup_tc_block_cb(enum tc_setup_type type,
void *type_data, void *cb_priv)
{
struct tc_cls_bpf_offload *cls_bpf = type_data;
struct nfp_net *nn = cb_priv;
struct bpf_prog *oldprog;
struct nfp_bpf_vnic *bv;
int err;
if (type != TC_SETUP_CLSBPF) {
NL_SET_ERR_MSG_MOD(cls_bpf->common.extack,
"only offload of BPF classifiers supported");
return -EOPNOTSUPP;
}
if (!tc_cls_can_offload_and_chain0(nn->dp.netdev, &cls_bpf->common))
return -EOPNOTSUPP;
if (!nfp_net_ebpf_capable(nn)) {
NL_SET_ERR_MSG_MOD(cls_bpf->common.extack,
"NFP firmware does not support eBPF offload");
return -EOPNOTSUPP;
}
if (cls_bpf->common.protocol != htons(ETH_P_ALL)) {
NL_SET_ERR_MSG_MOD(cls_bpf->common.extack,
"only ETH_P_ALL supported as filter protocol");
return -EOPNOTSUPP;
}
/* Only support TC direct action */
if (!cls_bpf->exts_integrated ||
tcf_exts_has_actions(cls_bpf->exts)) {
NL_SET_ERR_MSG_MOD(cls_bpf->common.extack,
"only direct action with no legacy actions supported");
return -EOPNOTSUPP;
}
if (cls_bpf->command != TC_CLSBPF_OFFLOAD)
return -EOPNOTSUPP;
bv = nn->app_priv;
oldprog = cls_bpf->oldprog;
/* Don't remove if oldprog doesn't match driver's state */
if (bv->tc_prog != oldprog) {
oldprog = NULL;
if (!cls_bpf->prog)
return 0;
}
err = nfp_net_bpf_offload(nn, cls_bpf->prog, oldprog,
cls_bpf->common.extack);
if (err)
return err;
bv->tc_prog = cls_bpf->prog;
nn->port->tc_offload_cnt = !!bv->tc_prog;
return 0;
}
static int nfp_flower_setup_tc_block_cb(enum tc_setup_type type,
void *type_data, void *cb_priv)
{
struct nfp_repr *repr = cb_priv;
if (!tc_cls_can_offload_and_chain0(repr->netdev, type_data))
return -EOPNOTSUPP;
switch (type) {
case TC_SETUP_CLSFLOWER:
return nfp_flower_repr_offload(repr->app, repr->netdev,
type_data, false);
default:
return -EOPNOTSUPP;
}
}
