netdevsim: add extack support for TC eBPF offload
Use the recently added extack support for TC eBPF filters in netdevsim. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -123,17 +123,35 @@ int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
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struct netdevsim *ns = cb_priv;
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struct bpf_prog *oldprog;
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if (type != TC_SETUP_CLSBPF ||
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!tc_can_offload(ns->netdev) ||
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cls_bpf->common.protocol != htons(ETH_P_ALL) ||
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cls_bpf->common.chain_index)
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if (type != TC_SETUP_CLSBPF) {
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NSIM_EA(cls_bpf->common.extack,
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"only offload of BPF classifiers supported");
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return -EOPNOTSUPP;
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}
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if (!tc_can_offload_extack(ns->netdev, cls_bpf->common.extack))
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return -EOPNOTSUPP;
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if (!ns->bpf_tc_accept)
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if (cls_bpf->common.protocol != htons(ETH_P_ALL)) {
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NSIM_EA(cls_bpf->common.extack,
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"only ETH_P_ALL supported as filter protocol");
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return -EOPNOTSUPP;
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}
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if (cls_bpf->common.chain_index)
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return -EOPNOTSUPP;
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if (!ns->bpf_tc_accept) {
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NSIM_EA(cls_bpf->common.extack,
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"netdevsim configured to reject BPF TC offload");
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return -EOPNOTSUPP;
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}
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/* Note: progs without skip_sw will probably not be dev bound */
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if (prog && !prog->aux->offload && !ns->bpf_tc_non_bound_accept)
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if (prog && !prog->aux->offload && !ns->bpf_tc_non_bound_accept) {
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NSIM_EA(cls_bpf->common.extack,
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"netdevsim configured to reject unbound programs");
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return -EOPNOTSUPP;
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}
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if (cls_bpf->command != TC_CLSBPF_OFFLOAD)
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return -EOPNOTSUPP;
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@ -145,8 +163,11 @@ int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
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oldprog = NULL;
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if (!cls_bpf->prog)
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return 0;
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if (ns->bpf_offloaded)
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if (ns->bpf_offloaded) {
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NSIM_EA(cls_bpf->common.extack,
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"driver and netdev offload states mismatch");
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return -EBUSY;
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}
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}
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return nsim_bpf_offload(ns, cls_bpf->prog, oldprog);
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