8c448c2b5f
This enables adding matchall rules for egress:
tc filter add .. egress .. matchall skip_sw \
action mirred egress mirror dev ..
Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/* Copyright (c) 2019-2022 Marvell International Ltd. All rights reserved */
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include "prestera.h"
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#include "prestera_hw.h"
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#include "prestera_flow.h"
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#include "prestera_flower.h"
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#include "prestera_matchall.h"
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#include "prestera_span.h"
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int prestera_mall_replace(struct prestera_flow_block *block,
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struct tc_cls_matchall_offload *f)
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{
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struct prestera_flow_block_binding *binding;
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__be16 protocol = f->common.protocol;
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struct flow_action_entry *act;
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struct prestera_port *port;
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int err;
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if (!flow_offload_has_one_action(&f->rule->action)) {
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NL_SET_ERR_MSG(f->common.extack,
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"Only singular actions are supported");
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return -EOPNOTSUPP;
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}
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act = &f->rule->action.entries[0];
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if (!prestera_netdev_check(act->dev)) {
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NL_SET_ERR_MSG(f->common.extack,
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"Only Marvell Prestera port is supported");
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return -EINVAL;
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}
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if (!tc_cls_can_offload_and_chain0(act->dev, &f->common))
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return -EOPNOTSUPP;
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if (act->id != FLOW_ACTION_MIRRED)
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return -EOPNOTSUPP;
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if (protocol != htons(ETH_P_ALL))
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return -EOPNOTSUPP;
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port = netdev_priv(act->dev);
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list_for_each_entry(binding, &block->binding_list, list) {
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err = prestera_span_rule_add(binding, port, block->ingress);
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if (err)
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goto rollback;
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}
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return 0;
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rollback:
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list_for_each_entry_continue_reverse(binding,
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&block->binding_list, list)
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prestera_span_rule_del(binding, block->ingress);
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return err;
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}
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void prestera_mall_destroy(struct prestera_flow_block *block)
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{
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struct prestera_flow_block_binding *binding;
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list_for_each_entry(binding, &block->binding_list, list)
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prestera_span_rule_del(binding, block->ingress);
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}
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