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net: flow_offload: add flow_block structure and use it

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This object stores the flow block callbacks that are attached to this
block. Update flow_block_cb_lookup() to take this new object.

This patch restores the block sharing feature.

Fixes: da3eeb904f ("net: flow_offload: add list handling functions")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pablo Neira Ayuso
2019-07-19 18:20:16 +02:00
committed by David S. Miller
parent a732331151
commit 14bfb13f0e
13 changed files with 44 additions and 25 deletions
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12
include/net/flow_offload.h
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@@ -249,6 +249,10 @@ enum flow_block_binder_type {
FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS,
};
struct flow_block {
struct list_head cb_list;
};
struct netlink_ext_ack;
struct flow_block_offload {
@@ -256,6 +260,7 @@ struct flow_block_offload {
enum flow_block_binder_type binder_type;
bool block_shared;
struct net *net;
struct flow_block *block;
struct list_head cb_list;
struct list_head *driver_block_list;
struct netlink_ext_ack *extack;
@@ -280,7 +285,7 @@ struct flow_block_cb *flow_block_cb_alloc(flow_setup_cb_t *cb,
void (*release)(void *cb_priv));
void flow_block_cb_free(struct flow_block_cb *block_cb);
struct flow_block_cb *flow_block_cb_lookup(struct flow_block_offload *offload,
struct flow_block_cb *flow_block_cb_lookup(struct flow_block *block,
flow_setup_cb_t *cb, void *cb_ident);
void *flow_block_cb_priv(struct flow_block_cb *block_cb);
@@ -337,4 +342,9 @@ flow_cls_offload_flow_rule(struct flow_cls_offload *flow_cmd)
return flow_cmd->rule;
}
static inline void flow_block_init(struct flow_block *flow_block)
{
INIT_LIST_HEAD(&flow_block->cb_list);
}
#endif /* _NET_FLOW_OFFLOAD_H */