From 4e95bc268b915c3a19ec8b9110f61e4ea41a1ed0 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 9 Jul 2019 22:55:39 +0200 Subject: net: flow_offload: add flow_block_cb_setup_simple() Most drivers do the same thing to set up the flow block callbacks, this patch adds a helper function to do this. This preparation patch reduces the number of changes to adapt the existing drivers to use the flow block callback API. This new helper function takes a flow block list per-driver, which is set to NULL until this driver list is used. This patch also introduces the flow_block_command and flow_block_binder_type enumerations, which are renamed to use FLOW_BLOCK_* in follow up patches. There are three definitions (aliases) in order to reduce the number of updates in this patch, which go away once drivers are fully adapted to use this flow block API. Signed-off-by: Pablo Neira Ayuso Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- net/core/flow_offload.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'net') diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c index f52fe0bc4017..e31c0fdb6b01 100644 --- a/net/core/flow_offload.c +++ b/net/core/flow_offload.c @@ -2,6 +2,7 @@ #include #include #include +#include struct flow_rule *flow_rule_alloc(unsigned int num_actions) { @@ -164,3 +165,27 @@ void flow_rule_match_enc_opts(const struct flow_rule *rule, FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_OPTS, out); } EXPORT_SYMBOL(flow_rule_match_enc_opts); + +int flow_block_cb_setup_simple(struct flow_block_offload *f, + struct list_head *driver_block_list, + tc_setup_cb_t *cb, void *cb_ident, void *cb_priv, + bool ingress_only) +{ + if (ingress_only && + f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) + return -EOPNOTSUPP; + + f->driver_block_list = driver_block_list; + + switch (f->command) { + case TC_BLOCK_BIND: + return tcf_block_cb_register(f->block, cb, cb_ident, cb_priv, + f->extack); + case TC_BLOCK_UNBIND: + tcf_block_cb_unregister(f->block, cb, cb_ident); + return 0; + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL(flow_block_cb_setup_simple); -- cgit v1.2.3