linux-stable.git/net/core/flow_offload.c, branch v5.3

net: flow_offload: add flow_block structure and use it

2019-07-20T04:27:45+00:00

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: da3eeb904ff4 ("net: flow_offload: add list handling functions")
Signed-off-by: Pablo Neira Ayuso 
Acked-by: Jiri Pirko 
Signed-off-by: David S. Miller

net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t

2019-07-20T04:27:45+00:00

Rename this type definition and adapt users.

Signed-off-by: Pablo Neira Ayuso 
Acked-by: Jiri Pirko 
Signed-off-by: David S. Miller

net: flow_offload: remove netns parameter from flow_block_cb_alloc()

2019-07-20T04:27:45+00:00

No need to annotate the netns on the flow block callback object,
flow_block_cb_is_busy() already checks for used blocks.

Fixes: d63db30c8537 ("net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free()")
Signed-off-by: Pablo Neira Ayuso 
Acked-by: Jiri Pirko 
Signed-off-by: David S. Miller

net: flow_offload: add flow_block_cb_is_busy() and use it

2019-07-09T21:38:50+00:00

This patch adds a function to check if flow block callback is already in
use.  Call this new function from flow_block_cb_setup_simple() and from
drivers.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

drivers: net: use flow block API

2019-07-09T21:38:50+00:00

This patch updates flow_block_cb_setup_simple() to use the flow block API.
Several drivers are also adjusted to use it.

This patch introduces the per-driver list of flow blocks to account for
blocks that are already in use.

Remove tc_block_offload alias.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: flow_offload: add flow_block_cb_{priv, incref, decref}()

2019-07-09T21:38:50+00:00

This patch completes the flow block API to introduce:

* flow_block_cb_priv() to access callback private data.
* flow_block_cb_incref() to bump reference counter on this flow block.
* flow_block_cb_decref() to decrement the reference counter.

These functions are taken from the existing tcf_block_cb_priv(),
tcf_block_cb_incref() and tcf_block_cb_decref().

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: flow_offload: add list handling functions

2019-07-09T21:38:50+00:00

This patch adds the list handling functions for the flow block API:

* flow_block_cb_lookup() allows drivers to look up for existing flow blocks.
* flow_block_cb_add() adds a flow block to the per driver list to be registered
  by the core.
* flow_block_cb_remove() to remove a flow block from the list of existing
  flow blocks per driver and to request the core to unregister this.

The flow block API also annotates the netns this flow block belongs to.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free()

2019-07-09T21:38:50+00:00

Add a new helper function to allocate flow_block_cb objects.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_*

2019-07-09T21:38:50+00:00

Rename from TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_* and
remove temporary tcf_block_binder_type alias.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND

2019-07-09T21:38:50+00:00

Rename from TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND and remove
temporary tc_block_command alias.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller