nfp/bpf/main.c

24 static bool nfp_net_ebpf_capable(struct nfp_net *nn)
27 	struct nfp_app_bpf *bpf = nn->app->priv;
29 	return nn->cap & NFP_NET_CFG_CTRL_BPF &&
31 	       nn_readb(nn, NFP_NET_CFG_BPF_ABI) == bpf->abi_version;
38 nfp_bpf_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
43 	if (!nfp_net_ebpf_capable(nn))
46 	running = nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF;
47 	xdp_running = running && nn->xdp_hw.prog;
54 	return nfp_net_bpf_offload(nn, prog, running, extack);
57 static const char *nfp_bpf_extra_cap(struct nfp_app *app, struct nfp_net *nn)
59 	return nfp_net_ebpf_capable(nn) ? "BPF" : "";
63 nfp_bpf_vnic_alloc(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
82 	nn->app_priv = bv;
84 	err = nfp_app_nic_vnic_alloc(app, nn, id);
88 	bv->start_off = nn_readw(nn, NFP_NET_CFG_BPF_START);
89 	bv->tgt_done = nn_readw(nn, NFP_NET_CFG_BPF_DONE);
93 	kfree(nn->app_priv);
97 static void nfp_bpf_vnic_free(struct nfp_app *app, struct nfp_net *nn)
99 	struct nfp_bpf_vnic *bv = nn->app_priv;
109 	struct nfp_net *nn = cb_priv;
119 	if (!tc_cls_can_offload_and_chain0(nn->dp.netdev, &cls_bpf->common))
121 	if (!nfp_net_ebpf_capable(nn)) {
143 	bv = nn->app_priv;
153 	err = nfp_net_bpf_offload(nn, cls_bpf->prog, oldprog,
159 	nn->port->tc_offload_cnt = !!bv->tc_prog;
168 	struct nfp_net *nn = netdev_priv(netdev);
175 						  nn, nn, true);
184 	struct nfp_net *nn = netdev_priv(netdev);
188 	if (~nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF)
191 	if (nn->xdp_hw.prog) {
192 		prog = nn->xdp_hw.prog;
194 		bv = nn->app_priv;
198 	if (nfp_bpf_offload_check_mtu(nn, prog, new_mtu)) {
199 		nn_info(nn, "BPF offload active, potential packet access beyond hardware packet boundary");