path: root/include/net/sch_generic.h
diff options
authorJohn Hurley <john.hurley@netronome.com>2018-11-09 21:21:26 -0800
committerDavid S. Miller <davem@davemloft.net>2018-11-11 09:54:52 -0800
commit7f76fa36754b08d9709ae50cd0a9477a6f998b21 (patch)
treeaef7defef8900232af5a3e8e91ca44b064bdccfb /include/net/sch_generic.h
parentMerge branch 'PHYID-matching-macros' (diff)
net: sched: register callbacks for indirect tc block binds
Currently drivers can register to receive TC block bind/unbind callbacks by implementing the setup_tc ndo in any of their given netdevs. However, drivers may also be interested in binds to higher level devices (e.g. tunnel drivers) to potentially offload filters applied to them. Introduce indirect block devs which allows drivers to register callbacks for block binds on other devices. The callback is triggered when the device is bound to a block, allowing the driver to register for rules applied to that block using already available functions. Freeing an indirect block callback will trigger an unbind event (if necessary) to direct the driver to remove any offloaded rules and unreg any block rule callbacks. It is the responsibility of the implementing driver to clean any registered indirect block callbacks before exiting, if the block it still active at such a time. Allow registering an indirect block dev callback for a device that is already bound to a block. In this case (if it is an ingress block), register and also trigger the callback meaning that any already installed rules can be replayed to the calling driver. Signed-off-by: John Hurley <john.hurley@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sch_generic.h')
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index a8dd1fc141b6..9481f2c142e2 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -24,6 +24,9 @@ struct bpf_flow_keys;
typedef int tc_setup_cb_t(enum tc_setup_type type,
void *type_data, void *cb_priv);
+typedef int tc_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv,
+ enum tc_setup_type type, void *type_data);
struct qdisc_rate_table {
struct tc_ratespec rate;
u32 data[256];