Ejemplo n.º 1
0
static int gred_vqs_validate(struct gred_sched *table, u32 cdp,
			     struct nlattr *vqs, struct netlink_ext_ack *extack)
{
	const struct nlattr *attr;
	int rem, err;

	err = nla_validate_nested_deprecated(vqs, TCA_GRED_VQ_ENTRY_MAX,
					     gred_vqe_policy, extack);
	if (err < 0)
		return err;

	nla_for_each_nested(attr, vqs, rem) {
		switch (nla_type(attr)) {
		case TCA_GRED_VQ_ENTRY:
			err = gred_vq_validate(table, cdp, attr, extack);
			if (err)
				return err;
			break;
		default:
			NL_SET_ERR_MSG_MOD(extack, "GRED_VQ_LIST can contain only entry attributes");
			return -EINVAL;
		}
	}

	if (rem > 0) {
		NL_SET_ERR_MSG_MOD(extack, "Trailing data after parsing virtual queue list");
		return -EINVAL;
	}

	return 0;
}
Ejemplo n.º 2
0
Archivo: main.c Proyecto: avagin/linux
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;
}
Ejemplo n.º 3
0
static int mlxsw_sp_flower_parse_tcp(struct mlxsw_sp *mlxsw_sp,
				     struct mlxsw_sp_acl_rule_info *rulei,
				     struct tc_cls_flower_offload *f,
				     u8 ip_proto)
{
	struct flow_dissector_key_tcp *key, *mask;

	if (!dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP))
		return 0;

	if (ip_proto != IPPROTO_TCP) {
		NL_SET_ERR_MSG_MOD(f->common.extack, "TCP keys supported only for TCP");
		dev_err(mlxsw_sp->bus_info->dev, "TCP keys supported only for TCP\n");
		return -EINVAL;
	}

	key = skb_flow_dissector_target(f->dissector,
					FLOW_DISSECTOR_KEY_TCP,
					f->key);
	mask = skb_flow_dissector_target(f->dissector,
					 FLOW_DISSECTOR_KEY_TCP,
					 f->mask);
	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_TCP_FLAGS,
				       ntohs(key->flags), ntohs(mask->flags));
	return 0;
}
Ejemplo n.º 4
0
static int mlxsw_sp_flower_parse_ports(struct mlxsw_sp *mlxsw_sp,
				       struct mlxsw_sp_acl_rule_info *rulei,
				       struct tc_cls_flower_offload *f,
				       u8 ip_proto)
{
	struct flow_dissector_key_ports *key, *mask;

	if (!dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS))
		return 0;

	if (ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) {
		NL_SET_ERR_MSG_MOD(f->common.extack, "Only UDP and TCP keys are supported");
		dev_err(mlxsw_sp->bus_info->dev, "Only UDP and TCP keys are supported\n");
		return -EINVAL;
	}

	key = skb_flow_dissector_target(f->dissector,
					FLOW_DISSECTOR_KEY_PORTS,
					f->key);
	mask = skb_flow_dissector_target(f->dissector,
					 FLOW_DISSECTOR_KEY_PORTS,
					 f->mask);
	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_DST_L4_PORT,
				       ntohs(key->dst), ntohs(mask->dst));
	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_SRC_L4_PORT,
				       ntohs(key->src), ntohs(mask->src));
	return 0;
}
Ejemplo n.º 5
0
static int mlxsw_sp_flower_parse_ip(struct mlxsw_sp *mlxsw_sp,
				    struct mlxsw_sp_acl_rule_info *rulei,
				    struct tc_cls_flower_offload *f,
				    u16 n_proto)
{
	struct flow_dissector_key_ip *key, *mask;

	if (!dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IP))
		return 0;

	if (n_proto != ETH_P_IP && n_proto != ETH_P_IPV6) {
		NL_SET_ERR_MSG_MOD(f->common.extack, "IP keys supported only for IPv4/6");
		dev_err(mlxsw_sp->bus_info->dev, "IP keys supported only for IPv4/6\n");
		return -EINVAL;
	}

	key = skb_flow_dissector_target(f->dissector,
					FLOW_DISSECTOR_KEY_IP,
					f->key);
	mask = skb_flow_dissector_target(f->dissector,
					 FLOW_DISSECTOR_KEY_IP,
					 f->mask);
	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_IP_TTL_,
				       key->ttl, mask->ttl);

	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_IP_ECN,
				       key->tos & 0x3, mask->tos & 0x3);

	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_IP_DSCP,
				       key->tos >> 6, mask->tos >> 6);

	return 0;
}
Ejemplo n.º 6
0
static int gred_init(struct Qdisc *sch, struct nlattr *opt,
		     struct netlink_ext_ack *extack)
{
	struct nlattr *tb[TCA_GRED_MAX + 1];
	int err;

	if (!opt)
		return -EINVAL;

	err = nla_parse_nested_deprecated(tb, TCA_GRED_MAX, opt, gred_policy,
					  extack);
	if (err < 0)
		return err;

	if (tb[TCA_GRED_PARMS] || tb[TCA_GRED_STAB]) {
		NL_SET_ERR_MSG_MOD(extack,
				   "virtual queue configuration can't be specified at initialization time");
		return -EINVAL;
	}

	if (tb[TCA_GRED_LIMIT])
		sch->limit = nla_get_u32(tb[TCA_GRED_LIMIT]);
	else
		sch->limit = qdisc_dev(sch)->tx_queue_len
		             * psched_mtu(qdisc_dev(sch));

	return gred_change_table_def(sch, tb[TCA_GRED_DPS], extack);
}
Ejemplo n.º 7
0
int nfp_flower_setup_qos_offload(struct nfp_app *app, struct net_device *netdev,
				 struct tc_cls_matchall_offload *flow)
{
	struct netlink_ext_ack *extack = flow->common.extack;
	struct nfp_flower_priv *fl_priv = app->priv;

	if (!(fl_priv->flower_ext_feats & NFP_FL_FEATS_VF_RLIM)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support qos rate limit offload");
		return -EOPNOTSUPP;
	}

	switch (flow->command) {
	case TC_CLSMATCHALL_REPLACE:
		return nfp_flower_install_rate_limiter(app, netdev, flow,
						       extack);
	case TC_CLSMATCHALL_DESTROY:
		return nfp_flower_remove_rate_limiter(app, netdev, flow,
						      extack);
	case TC_CLSMATCHALL_STATS:
		return nfp_flower_stats_rate_limiter(app, netdev, flow,
						     extack);
	default:
		return -EOPNOTSUPP;
	}
}
Ejemplo n.º 8
0
static int
nfp_flower_remove_rate_limiter(struct nfp_app *app, struct net_device *netdev,
			       struct tc_cls_matchall_offload *flow,
			       struct netlink_ext_ack *extack)
{
	struct nfp_flower_priv *fl_priv = app->priv;
	struct nfp_flower_repr_priv *repr_priv;
	struct nfp_police_config *config;
	struct nfp_repr *repr;
	struct sk_buff *skb;
	u32 netdev_port_id;

	if (!nfp_netdev_is_nfp_repr(netdev)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on higher level port");
		return -EOPNOTSUPP;
	}
	repr = netdev_priv(netdev);

	netdev_port_id = nfp_repr_get_port_id(netdev);
	repr_priv = repr->app_priv;

	if (!repr_priv->qos_table.netdev_port_id) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: cannot remove qos entry that does not exist");
		return -EOPNOTSUPP;
	}

	skb = nfp_flower_cmsg_alloc(repr->app, sizeof(struct nfp_police_config),
				    NFP_FLOWER_CMSG_TYPE_QOS_DEL, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	/* Clear all qos associate data for this interface */
	memset(&repr_priv->qos_table, 0, sizeof(struct nfp_fl_qos));
	fl_priv->qos_rate_limiters--;
	if (!fl_priv->qos_rate_limiters)
		cancel_delayed_work_sync(&fl_priv->qos_stats_work);

	config = nfp_flower_cmsg_get_data(skb);
	memset(config, 0, sizeof(struct nfp_police_config));
	config->head.port = cpu_to_be32(netdev_port_id);
	nfp_ctrl_tx(repr->app->ctrl, skb);

	return 0;
}
Ejemplo n.º 9
0
static int gred_vq_validate(struct gred_sched *table, u32 cdp,
			    const struct nlattr *entry,
			    struct netlink_ext_ack *extack)
{
	struct nlattr *tb[TCA_GRED_VQ_MAX + 1];
	int err;
	u32 dp;

	err = nla_parse_nested_deprecated(tb, TCA_GRED_VQ_MAX, entry,
					  gred_vq_policy, extack);
	if (err < 0)
		return err;

	if (!tb[TCA_GRED_VQ_DP]) {
		NL_SET_ERR_MSG_MOD(extack, "Virtual queue with no index specified");
		return -EINVAL;
	}
	dp = nla_get_u32(tb[TCA_GRED_VQ_DP]);
	if (dp >= table->DPs) {
		NL_SET_ERR_MSG_MOD(extack, "Virtual queue with index out of bounds");
		return -EINVAL;
	}
	if (dp != cdp && !table->tab[dp]) {
		NL_SET_ERR_MSG_MOD(extack, "Virtual queue not yet instantiated");
		return -EINVAL;
	}

	if (tb[TCA_GRED_VQ_FLAGS]) {
		u32 red_flags = nla_get_u32(tb[TCA_GRED_VQ_FLAGS]);

		if (table->red_flags && table->red_flags != red_flags) {
			NL_SET_ERR_MSG_MOD(extack, "can't change per-virtual queue RED flags when per-Qdisc flags are used");
			return -EINVAL;
		}
		if (red_flags & ~GRED_VQ_RED_FLAGS) {
			NL_SET_ERR_MSG_MOD(extack,
					   "invalid RED flags specified");
			return -EINVAL;
		}
	}

	return 0;
}
Ejemplo n.º 10
0
static int
nfp_flower_stats_rate_limiter(struct nfp_app *app, struct net_device *netdev,
			      struct tc_cls_matchall_offload *flow,
			      struct netlink_ext_ack *extack)
{
	struct nfp_flower_priv *fl_priv = app->priv;
	struct nfp_flower_repr_priv *repr_priv;
	struct nfp_stat_pair *curr_stats;
	struct nfp_stat_pair *prev_stats;
	u64 diff_bytes, diff_pkts;
	struct nfp_repr *repr;

	if (!nfp_netdev_is_nfp_repr(netdev)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on higher level port");
		return -EOPNOTSUPP;
	}
	repr = netdev_priv(netdev);

	repr_priv = repr->app_priv;
	if (!repr_priv->qos_table.netdev_port_id) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: cannot find qos entry for stats update");
		return -EOPNOTSUPP;
	}

	spin_lock_bh(&fl_priv->qos_stats_lock);
	curr_stats = &repr_priv->qos_table.curr_stats;
	prev_stats = &repr_priv->qos_table.prev_stats;
	diff_pkts = curr_stats->pkts - prev_stats->pkts;
	diff_bytes = curr_stats->bytes - prev_stats->bytes;
	prev_stats->pkts = curr_stats->pkts;
	prev_stats->bytes = curr_stats->bytes;
	spin_unlock_bh(&fl_priv->qos_stats_lock);

	flow_stats_update(&flow->stats, diff_bytes, diff_pkts,
			  repr_priv->qos_table.last_update);
	return 0;
}
Ejemplo n.º 11
0
static inline int gred_change_vq(struct Qdisc *sch, int dp,
				 struct tc_gred_qopt *ctl, int prio,
				 u8 *stab, u32 max_P,
				 struct gred_sched_data **prealloc,
				 struct netlink_ext_ack *extack)
{
	struct gred_sched *table = qdisc_priv(sch);
	struct gred_sched_data *q = table->tab[dp];

	if (!red_check_params(ctl->qth_min, ctl->qth_max, ctl->Wlog)) {
		NL_SET_ERR_MSG_MOD(extack, "invalid RED parameters");
		return -EINVAL;
	}

	if (!q) {
		table->tab[dp] = q = *prealloc;
		*prealloc = NULL;
		if (!q)
			return -ENOMEM;
		q->red_flags = table->red_flags & GRED_VQ_RED_FLAGS;
	}

	q->DP = dp;
	q->prio = prio;
	if (ctl->limit > sch->limit)
		q->limit = sch->limit;
	else
		q->limit = ctl->limit;

	if (q->backlog == 0)
		red_end_of_idle_period(&q->vars);

	red_set_parms(&q->parms,
		      ctl->qth_min, ctl->qth_max, ctl->Wlog, ctl->Plog,
		      ctl->Scell_log, stab, max_P);
	red_set_vars(&q->vars);
	return 0;
}
Ejemplo n.º 12
0
static int gred_change(struct Qdisc *sch, struct nlattr *opt,
		       struct netlink_ext_ack *extack)
{
	struct gred_sched *table = qdisc_priv(sch);
	struct tc_gred_qopt *ctl;
	struct nlattr *tb[TCA_GRED_MAX + 1];
	int err, prio = GRED_DEF_PRIO;
	u8 *stab;
	u32 max_P;
	struct gred_sched_data *prealloc;

	if (opt == NULL)
		return -EINVAL;

	err = nla_parse_nested_deprecated(tb, TCA_GRED_MAX, opt, gred_policy,
					  extack);
	if (err < 0)
		return err;

	if (tb[TCA_GRED_PARMS] == NULL && tb[TCA_GRED_STAB] == NULL) {
		if (tb[TCA_GRED_LIMIT] != NULL)
			sch->limit = nla_get_u32(tb[TCA_GRED_LIMIT]);
		return gred_change_table_def(sch, tb[TCA_GRED_DPS], extack);
	}

	if (tb[TCA_GRED_PARMS] == NULL ||
	    tb[TCA_GRED_STAB] == NULL ||
	    tb[TCA_GRED_LIMIT] != NULL) {
		NL_SET_ERR_MSG_MOD(extack, "can't configure Qdisc and virtual queue at the same time");
		return -EINVAL;
	}

	max_P = tb[TCA_GRED_MAX_P] ? nla_get_u32(tb[TCA_GRED_MAX_P]) : 0;

	ctl = nla_data(tb[TCA_GRED_PARMS]);
	stab = nla_data(tb[TCA_GRED_STAB]);

	if (ctl->DP >= table->DPs) {
		NL_SET_ERR_MSG_MOD(extack, "virtual queue index above virtual queue count");
		return -EINVAL;
	}

	if (tb[TCA_GRED_VQ_LIST]) {
		err = gred_vqs_validate(table, ctl->DP, tb[TCA_GRED_VQ_LIST],
					extack);
		if (err)
			return err;
	}

	if (gred_rio_mode(table)) {
		if (ctl->prio == 0) {
			int def_prio = GRED_DEF_PRIO;

			if (table->tab[table->def])
				def_prio = table->tab[table->def]->prio;

			printk(KERN_DEBUG "GRED: DP %u does not have a prio "
			       "setting default to %d\n", ctl->DP, def_prio);

			prio = def_prio;
		} else
			prio = ctl->prio;
	}

	prealloc = kzalloc(sizeof(*prealloc), GFP_KERNEL);
	sch_tree_lock(sch);

	err = gred_change_vq(sch, ctl->DP, ctl, prio, stab, max_P, &prealloc,
			     extack);
	if (err < 0)
		goto err_unlock_free;

	if (tb[TCA_GRED_VQ_LIST])
		gred_vqs_apply(table, tb[TCA_GRED_VQ_LIST]);

	if (gred_rio_mode(table)) {
		gred_disable_wred_mode(table);
		if (gred_wred_mode_check(sch))
			gred_enable_wred_mode(table);
	}

	sch_tree_unlock(sch);
	kfree(prealloc);

	gred_offload(sch, TC_GRED_REPLACE);
	return 0;

err_unlock_free:
	sch_tree_unlock(sch);
	kfree(prealloc);
	return err;
}
Ejemplo n.º 13
0
static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
					 struct mlxsw_sp_acl_block *block,
					 struct mlxsw_sp_acl_rule_info *rulei,
					 struct tcf_exts *exts,
					 struct netlink_ext_ack *extack)
{
	const struct tc_action *a;
	int err, i;

	if (!tcf_exts_has_actions(exts))
		return 0;

	/* Count action is inserted first */
	err = mlxsw_sp_acl_rulei_act_count(mlxsw_sp, rulei, extack);
	if (err)
		return err;

	tcf_exts_for_each_action(i, a, exts) {
		if (is_tcf_gact_ok(a)) {
			err = mlxsw_sp_acl_rulei_act_terminate(rulei);
			if (err) {
				NL_SET_ERR_MSG_MOD(extack, "Cannot append terminate action");
				return err;
			}
		} else if (is_tcf_gact_shot(a)) {
			err = mlxsw_sp_acl_rulei_act_drop(rulei);
			if (err) {
				NL_SET_ERR_MSG_MOD(extack, "Cannot append drop action");
				return err;
			}
		} else if (is_tcf_gact_trap(a)) {
			err = mlxsw_sp_acl_rulei_act_trap(rulei);
			if (err) {
				NL_SET_ERR_MSG_MOD(extack, "Cannot append trap action");
				return err;
			}
		} else if (is_tcf_gact_goto_chain(a)) {
			u32 chain_index = tcf_gact_goto_chain_index(a);
			struct mlxsw_sp_acl_ruleset *ruleset;
			u16 group_id;

			ruleset = mlxsw_sp_acl_ruleset_lookup(mlxsw_sp, block,
							      chain_index,
							      MLXSW_SP_ACL_PROFILE_FLOWER);
			if (IS_ERR(ruleset))
				return PTR_ERR(ruleset);

			group_id = mlxsw_sp_acl_ruleset_group_id(ruleset);
			err = mlxsw_sp_acl_rulei_act_jump(rulei, group_id);
			if (err) {
				NL_SET_ERR_MSG_MOD(extack, "Cannot append jump action");
				return err;
			}
		} else if (is_tcf_mirred_egress_redirect(a)) {
			struct net_device *out_dev;
			struct mlxsw_sp_fid *fid;
			u16 fid_index;

			fid = mlxsw_sp_acl_dummy_fid(mlxsw_sp);
			fid_index = mlxsw_sp_fid_index(fid);
			err = mlxsw_sp_acl_rulei_act_fid_set(mlxsw_sp, rulei,
							     fid_index, extack);
			if (err)
				return err;

			out_dev = tcf_mirred_dev(a);
			err = mlxsw_sp_acl_rulei_act_fwd(mlxsw_sp, rulei,
							 out_dev, extack);
			if (err)
				return err;
		} else if (is_tcf_mirred_egress_mirror(a)) {
			struct net_device *out_dev = tcf_mirred_dev(a);

			err = mlxsw_sp_acl_rulei_act_mirror(mlxsw_sp, rulei,
							    block, out_dev,
							    extack);
			if (err)
				return err;
		} else if (is_tcf_vlan(a)) {
			u16 proto = be16_to_cpu(tcf_vlan_push_proto(a));
			u32 action = tcf_vlan_action(a);
			u8 prio = tcf_vlan_push_prio(a);
			u16 vid = tcf_vlan_push_vid(a);

			return mlxsw_sp_acl_rulei_act_vlan(mlxsw_sp, rulei,
							   action, vid,
							   proto, prio, extack);
		} else {
			NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
			dev_err(mlxsw_sp->bus_info->dev, "Unsupported action\n");
			return -EOPNOTSUPP;
		}
	}
	return 0;
}
Ejemplo n.º 14
0
static int gred_change_table_def(struct Qdisc *sch, struct nlattr *dps,
				 struct netlink_ext_ack *extack)
{
	struct gred_sched *table = qdisc_priv(sch);
	struct tc_gred_sopt *sopt;
	bool red_flags_changed;
	int i;

	if (!dps)
		return -EINVAL;

	sopt = nla_data(dps);

	if (sopt->DPs > MAX_DPs) {
		NL_SET_ERR_MSG_MOD(extack, "number of virtual queues too high");
		return -EINVAL;
	}
	if (sopt->DPs == 0) {
		NL_SET_ERR_MSG_MOD(extack,
				   "number of virtual queues can't be 0");
		return -EINVAL;
	}
	if (sopt->def_DP >= sopt->DPs) {
		NL_SET_ERR_MSG_MOD(extack, "default virtual queue above virtual queue count");
		return -EINVAL;
	}
	if (sopt->flags && gred_per_vq_red_flags_used(table)) {
		NL_SET_ERR_MSG_MOD(extack, "can't set per-Qdisc RED flags when per-virtual queue flags are used");
		return -EINVAL;
	}

	sch_tree_lock(sch);
	table->DPs = sopt->DPs;
	table->def = sopt->def_DP;
	red_flags_changed = table->red_flags != sopt->flags;
	table->red_flags = sopt->flags;

	/*
	 * Every entry point to GRED is synchronized with the above code
	 * and the DP is checked against DPs, i.e. shadowed VQs can no
	 * longer be found so we can unlock right here.
	 */
	sch_tree_unlock(sch);

	if (sopt->grio) {
		gred_enable_rio_mode(table);
		gred_disable_wred_mode(table);
		if (gred_wred_mode_check(sch))
			gred_enable_wred_mode(table);
	} else {
		gred_disable_rio_mode(table);
		gred_disable_wred_mode(table);
	}

	if (red_flags_changed)
		for (i = 0; i < table->DPs; i++)
			if (table->tab[i])
				table->tab[i]->red_flags =
					table->red_flags & GRED_VQ_RED_FLAGS;

	for (i = table->DPs; i < MAX_DPs; i++) {
		if (table->tab[i]) {
			pr_warn("GRED: Warning: Destroying shadowed VQ 0x%x\n",
				i);
			gred_destroy_vq(table->tab[i]);
			table->tab[i] = NULL;
		}
	}

	gred_offload(sch, TC_GRED_REPLACE);
	return 0;
}
Ejemplo n.º 15
0
static int
nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
				struct tc_cls_matchall_offload *flow,
				struct netlink_ext_ack *extack)
{
	struct flow_action_entry *action = &flow->rule->action.entries[0];
	struct nfp_flower_priv *fl_priv = app->priv;
	struct nfp_flower_repr_priv *repr_priv;
	struct nfp_police_config *config;
	struct nfp_repr *repr;
	struct sk_buff *skb;
	u32 netdev_port_id;
	u64 burst, rate;

	if (!nfp_netdev_is_nfp_repr(netdev)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on higher level port");
		return -EOPNOTSUPP;
	}
	repr = netdev_priv(netdev);
	repr_priv = repr->app_priv;

	if (repr_priv->block_shared) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on shared blocks");
		return -EOPNOTSUPP;
	}

	if (repr->port->type != NFP_PORT_VF_PORT) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on non-VF ports");
		return -EOPNOTSUPP;
	}

	if (!flow_offload_has_one_action(&flow->rule->action)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires a single action");
		return -EOPNOTSUPP;
	}

	if (flow->common.prio != (1 << 16)) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires highest priority");
		return -EOPNOTSUPP;
	}

	if (action->id != FLOW_ACTION_POLICE) {
		NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires police action");
		return -EOPNOTSUPP;
	}

	rate = action->police.rate_bytes_ps;
	burst = div_u64(rate * PSCHED_NS2TICKS(action->police.burst),
			PSCHED_TICKS_PER_SEC);
	netdev_port_id = nfp_repr_get_port_id(netdev);

	skb = nfp_flower_cmsg_alloc(repr->app, sizeof(struct nfp_police_config),
				    NFP_FLOWER_CMSG_TYPE_QOS_MOD, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	config = nfp_flower_cmsg_get_data(skb);
	memset(config, 0, sizeof(struct nfp_police_config));
	config->head.port = cpu_to_be32(netdev_port_id);
	config->bkt_tkn_p = cpu_to_be32(burst);
	config->bkt_tkn_c = cpu_to_be32(burst);
	config->pbs = cpu_to_be32(burst);
	config->cbs = cpu_to_be32(burst);
	config->pir = cpu_to_be32(rate);
	config->cir = cpu_to_be32(rate);
	nfp_ctrl_tx(repr->app->ctrl, skb);

	repr_priv->qos_table.netdev_port_id = netdev_port_id;
	fl_priv->qos_rate_limiters++;
	if (fl_priv->qos_rate_limiters == 1)
		schedule_delayed_work(&fl_priv->qos_stats_work,
				      NFP_FL_QOS_UPDATE);

	return 0;
}
Ejemplo n.º 16
0
static int nsim_validate(struct nlattr *tb[], struct nlattr *data[],
			 struct netlink_ext_ack *extack)
{
	NL_SET_ERR_MSG_MOD(extack, "Please use: echo \"[ID] [PORT_COUNT]\" > /sys/bus/netdevsim/new_device");
	return -EOPNOTSUPP;
}
Ejemplo n.º 17
0
static int tcf_pedit_init(struct net *net, struct nlattr *nla,
			  struct nlattr *est, struct tc_action **a,
			  int ovr, int bind, bool rtnl_held,
			  struct netlink_ext_ack *extack)
{
	struct tc_action_net *tn = net_generic(net, pedit_net_id);
	struct nlattr *tb[TCA_PEDIT_MAX + 1];
	struct tc_pedit_key *keys = NULL;
	struct tcf_pedit_key_ex *keys_ex;
	struct tc_pedit *parm;
	struct nlattr *pattr;
	struct tcf_pedit *p;
	int ret = 0, err;
	int ksize;

	if (!nla) {
		NL_SET_ERR_MSG_MOD(extack, "Pedit requires attributes to be passed");
		return -EINVAL;
	}

	err = nla_parse_nested(tb, TCA_PEDIT_MAX, nla, pedit_policy, NULL);
	if (err < 0)
		return err;

	pattr = tb[TCA_PEDIT_PARMS];
	if (!pattr)
		pattr = tb[TCA_PEDIT_PARMS_EX];
	if (!pattr) {
		NL_SET_ERR_MSG_MOD(extack, "Missing required TCA_PEDIT_PARMS or TCA_PEDIT_PARMS_EX pedit attribute");
		return -EINVAL;
	}

	parm = nla_data(pattr);
	ksize = parm->nkeys * sizeof(struct tc_pedit_key);
	if (nla_len(pattr) < sizeof(*parm) + ksize) {
		NL_SET_ERR_MSG_ATTR(extack, pattr, "Length of TCA_PEDIT_PARMS or TCA_PEDIT_PARMS_EX pedit attribute is invalid");
		return -EINVAL;
	}

	keys_ex = tcf_pedit_keys_ex_parse(tb[TCA_PEDIT_KEYS_EX], parm->nkeys);
	if (IS_ERR(keys_ex))
		return PTR_ERR(keys_ex);

	err = tcf_idr_check_alloc(tn, &parm->index, a, bind);
	if (!err) {
		if (!parm->nkeys) {
			tcf_idr_cleanup(tn, parm->index);
			NL_SET_ERR_MSG_MOD(extack, "Pedit requires keys to be passed");
			ret = -EINVAL;
			goto out_free;
		}
		ret = tcf_idr_create(tn, parm->index, est, a,
				     &act_pedit_ops, bind, false);
		if (ret) {
			tcf_idr_cleanup(tn, parm->index);
			goto out_free;
		}
		ret = ACT_P_CREATED;
	} else if (err > 0) {
		if (bind)
			goto out_free;
		if (!ovr) {
			ret = -EEXIST;
			goto out_release;
		}
	} else {
		return err;
	}

	p = to_pedit(*a);
	spin_lock_bh(&p->tcf_lock);

	if (ret == ACT_P_CREATED ||
	    (p->tcfp_nkeys && p->tcfp_nkeys != parm->nkeys)) {
		keys = kmalloc(ksize, GFP_ATOMIC);
		if (!keys) {
			spin_unlock_bh(&p->tcf_lock);
			ret = -ENOMEM;
			goto out_release;
		}
		kfree(p->tcfp_keys);
		p->tcfp_keys = keys;
		p->tcfp_nkeys = parm->nkeys;
	}
	memcpy(p->tcfp_keys, parm->keys, ksize);

	p->tcfp_flags = parm->flags;
	p->tcf_action = parm->action;

	kfree(p->tcfp_keys_ex);
	p->tcfp_keys_ex = keys_ex;

	spin_unlock_bh(&p->tcf_lock);
	if (ret == ACT_P_CREATED)
		tcf_idr_insert(tn, *a);
	return ret;

out_release:
	tcf_idr_release(*a, bind);
out_free:
	kfree(keys_ex);
	return ret;

}
Ejemplo n.º 18
0
static int mlxsw_sp_flower_parse(struct mlxsw_sp *mlxsw_sp,
				 struct mlxsw_sp_acl_block *block,
				 struct mlxsw_sp_acl_rule_info *rulei,
				 struct tc_cls_flower_offload *f)
{
	u16 n_proto_mask = 0;
	u16 n_proto_key = 0;
	u16 addr_type = 0;
	u8 ip_proto = 0;
	int err;

	if (f->dissector->used_keys &
	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_PORTS) |
	      BIT(FLOW_DISSECTOR_KEY_TCP) |
	      BIT(FLOW_DISSECTOR_KEY_IP) |
	      BIT(FLOW_DISSECTOR_KEY_VLAN))) {
		dev_err(mlxsw_sp->bus_info->dev, "Unsupported key\n");
		NL_SET_ERR_MSG_MOD(f->common.extack, "Unsupported key");
		return -EOPNOTSUPP;
	}

	mlxsw_sp_acl_rulei_priority(rulei, f->common.prio);

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
		struct flow_dissector_key_control *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_CONTROL,
						  f->key);
		addr_type = key->addr_type;
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
		struct flow_dissector_key_basic *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_BASIC,
						  f->key);
		struct flow_dissector_key_basic *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_BASIC,
						  f->mask);
		n_proto_key = ntohs(key->n_proto);
		n_proto_mask = ntohs(mask->n_proto);

		if (n_proto_key == ETH_P_ALL) {
			n_proto_key = 0;
			n_proto_mask = 0;
		}
		mlxsw_sp_acl_rulei_keymask_u32(rulei,
					       MLXSW_AFK_ELEMENT_ETHERTYPE,
					       n_proto_key, n_proto_mask);

		ip_proto = key->ip_proto;
		mlxsw_sp_acl_rulei_keymask_u32(rulei,
					       MLXSW_AFK_ELEMENT_IP_PROTO,
					       key->ip_proto, mask->ip_proto);
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
		struct flow_dissector_key_eth_addrs *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
						  f->key);
		struct flow_dissector_key_eth_addrs *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
						  f->mask);

		mlxsw_sp_acl_rulei_keymask_buf(rulei,
					       MLXSW_AFK_ELEMENT_DMAC_32_47,
					       key->dst, mask->dst, 2);
		mlxsw_sp_acl_rulei_keymask_buf(rulei,
					       MLXSW_AFK_ELEMENT_DMAC_0_31,
					       key->dst + 2, mask->dst + 2, 4);
		mlxsw_sp_acl_rulei_keymask_buf(rulei,
					       MLXSW_AFK_ELEMENT_SMAC_32_47,
					       key->src, mask->src, 2);
		mlxsw_sp_acl_rulei_keymask_buf(rulei,
					       MLXSW_AFK_ELEMENT_SMAC_0_31,
					       key->src + 2, mask->src + 2, 4);
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) {
		struct flow_dissector_key_vlan *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_VLAN,
						  f->key);
		struct flow_dissector_key_vlan *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_VLAN,
						  f->mask);

		if (mlxsw_sp_acl_block_is_egress_bound(block)) {
			NL_SET_ERR_MSG_MOD(f->common.extack, "vlan_id key is not supported on egress");
			return -EOPNOTSUPP;
		}
		if (mask->vlan_id != 0)
			mlxsw_sp_acl_rulei_keymask_u32(rulei,
						       MLXSW_AFK_ELEMENT_VID,
						       key->vlan_id,
						       mask->vlan_id);
		if (mask->vlan_priority != 0)
			mlxsw_sp_acl_rulei_keymask_u32(rulei,
						       MLXSW_AFK_ELEMENT_PCP,
						       key->vlan_priority,
						       mask->vlan_priority);
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS)
		mlxsw_sp_flower_parse_ipv4(rulei, f);

	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS)
		mlxsw_sp_flower_parse_ipv6(rulei, f);

	err = mlxsw_sp_flower_parse_ports(mlxsw_sp, rulei, f, ip_proto);
	if (err)
		return err;
	err = mlxsw_sp_flower_parse_tcp(mlxsw_sp, rulei, f, ip_proto);
	if (err)
		return err;

	err = mlxsw_sp_flower_parse_ip(mlxsw_sp, rulei, f, n_proto_key & n_proto_mask);
	if (err)
		return err;

	return mlxsw_sp_flower_parse_actions(mlxsw_sp, block, rulei, f->exts,
					     f->common.extack);
}