linux.git/include/net/devlink.h, branch v4.18.19 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git devlink: Add extack to reload and port_{un, }split operations 2018-06-05T16:32:37+00:00 David Ahern dsahern@gmail.com 2018-06-05T15:14:09+00:00 ac0fc8a1bbcbe03ee67278afded105c05eb3535e Add extack argument to reload, port_split and port_unsplit operations. Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add extack argument to reload, port_split and port_unsplit operations.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: introduce a helper to generate physical port names 2018-05-19T20:30:39+00:00 Jiri Pirko jiri@mellanox.com 2018-05-18T07:29:02+00:00 08474c1a9df0cefcc3d197bd1d770695a34b9d60 Each driver implements physical port name generation by itself. However as devlink has all needed info, it can easily do the job for all its users. So implement this helper in devlink. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Each driver implements physical port name generation by itself. However
as devlink has all needed info, it can easily do the job for all its
users. So implement this helper in devlink.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: extend attrs_set for setting port flavours 2018-05-19T20:30:39+00:00 Jiri Pirko jiri@mellanox.com 2018-05-18T07:29:01+00:00 5ec1380a21bb6cd2ba89e31c44dfcc150f9ef792 Devlink ports can have specific flavour according to the purpose of use. This patch extend attrs_set so the driver can say which flavour port has. Initial flavours are: physical, cpu, dsa User can query this to see right away what is the purpose of each port. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Devlink ports can have specific flavour according to the purpose of use.
This patch extend attrs_set so the driver can say which flavour port
has. Initial flavours are:
physical, cpu, dsa
User can query this to see right away what is the purpose of each port.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: introduce devlink_port_attrs_set 2018-05-19T20:30:39+00:00 Jiri Pirko jiri@mellanox.com 2018-05-18T07:29:00+00:00 b9ffcbaf56d3040efee64d3818688083c29b2a44 Change existing setter for split port information into more generic attrs setter. Alongside with that, allow to set port number and subport number for split ports. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Change existing setter for split port information into more generic
attrs setter. Alongside with that, allow to set port number and subport
number for split ports.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: convert occ_get op to separate registration 2018-04-08T16:45:57+00:00 Jiri Pirko jiri@mellanox.com 2018-04-05T20:13:21+00:00 fc56be47da8cb111add373c36230b0139139898f This resolves race during initialization where the resources with ops are registered before driver and the structures used by occ_get op is initialized. So keep occ_get callbacks registered only when all structs are initialized. The example flows, as it is in mlxsw: 1) driver load/asic probe: mlxsw_core -> mlxsw_sp_resources_register -> mlxsw_sp_kvdl_resources_register -> devlink_resource_register IDX mlxsw_spectrum -> mlxsw_sp_kvdl_init -> mlxsw_sp_kvdl_parts_init -> mlxsw_sp_kvdl_part_init -> devlink_resource_size_get IDX (to get the current setup size from devlink) -> devlink_resource_occ_get_register IDX (register current occupancy getter) 2) reload triggered by devlink command: -> mlxsw_devlink_core_bus_device_reload -> mlxsw_sp_fini -> mlxsw_sp_kvdl_fini -> devlink_resource_occ_get_unregister IDX (struct mlxsw_sp *mlxsw_sp is freed at this point, call to occ get which is using mlxsw_sp would cause use-after free) -> mlxsw_sp_init -> mlxsw_sp_kvdl_init -> mlxsw_sp_kvdl_parts_init -> mlxsw_sp_kvdl_part_init -> devlink_resource_size_get IDX (to get the current setup size from devlink) -> devlink_resource_occ_get_register IDX (register current occupancy getter) Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
This resolves race during initialization where the resources with
ops are registered before driver and the structures used by occ_get
op is initialized. So keep occ_get callbacks registered only when
all structs are initialized.

The example flows, as it is in mlxsw:
1) driver load/asic probe:
   mlxsw_core
      -> mlxsw_sp_resources_register
        -> mlxsw_sp_kvdl_resources_register
          -> devlink_resource_register IDX
   mlxsw_spectrum
      -> mlxsw_sp_kvdl_init
        -> mlxsw_sp_kvdl_parts_init
          -> mlxsw_sp_kvdl_part_init
            -> devlink_resource_size_get IDX (to get the current setup
                                              size from devlink)
        -> devlink_resource_occ_get_register IDX (register current
                                                  occupancy getter)
2) reload triggered by devlink command:
  -> mlxsw_devlink_core_bus_device_reload
    -> mlxsw_sp_fini
      -> mlxsw_sp_kvdl_fini
	-> devlink_resource_occ_get_unregister IDX
    (struct mlxsw_sp *mlxsw_sp is freed at this point, call to occ get
     which is using mlxsw_sp would cause use-after free)
    -> mlxsw_sp_init
      -> mlxsw_sp_kvdl_init
        -> mlxsw_sp_kvdl_parts_init
          -> mlxsw_sp_kvdl_part_init
            -> devlink_resource_size_get IDX (to get the current setup
                                              size from devlink)
        -> devlink_resource_occ_get_register IDX (register current
                                                  occupancy getter)

Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: Remove top_hierarchy arg for DEVLINK disabled path 2018-03-23T16:14:18+00:00 David Ahern dsahern@gmail.com 2018-03-23T15:09:48+00:00 e9de0018d1fa97f8db9a39fcb69b55266c52835b Earlier change missed the path where CONFIG_NET_DEVLINK is disabled. Thanks to Jiri for spotting. Fixes: 145307460ba9 ("devlink: Remove top_hierarchy arg to devlink_resource_register") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Earlier change missed the path where CONFIG_NET_DEVLINK is disabled.
Thanks to Jiri for spotting.

Fixes: 145307460ba9 ("devlink: Remove top_hierarchy arg to devlink_resource_register")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: Remove top_hierarchy arg to devlink_resource_register 2018-03-22T17:08:41+00:00 David Ahern dsahern@gmail.com 2018-03-21T02:31:14+00:00 145307460ba9c11489807de7acd3f4c7395f60b7 top_hierarchy arg can be determined by comparing parent_resource_id to DEVLINK_RESOURCE_ID_PARENT_TOP so it does not need to be a separate argument. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
top_hierarchy arg can be determined by comparing parent_resource_id to
DEVLINK_RESOURCE_ID_PARENT_TOP so it does not need to be a separate
argument.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-06T06:20:46+00:00 David S. Miller davem@davemloft.net 2018-03-06T05:53:44+00:00 0f3e9c97eb5a97972b0c0076a5cc01bb142f8e70 All of the conflicts were cases of overlapping changes. In net/core/devlink.c, we have to make care that the resouce size_params have become a struct member rather than a pointer to such an object. Signed-off-by: David S. Miller <davem@davemloft.net> 
All of the conflicts were cases of overlapping changes.

In net/core/devlink.c, we have to make care that the
resouce size_params have become a struct member rather
than a pointer to such an object.

Signed-off-by: David S. Miller <davem@davemloft.net>
mlxsw: spectrum: Fix handling of resource_size_param 2018-02-28T17:32:36+00:00 Jiri Pirko jiri@mellanox.com 2018-02-28T12:12:09+00:00 77d270967c5f723e5910dd073962b6372d7ef466 Current code uses global variables, adjusts them and passes pointer down to devlink. With every other mlxsw_core instance, the previously passed pointer values are rewritten. Fix this by de-globalize the variables and also memcpy size_params during devlink resource registration. Also, introduce a convenient size_param_init helper. Fixes: ef3116e5403e ("mlxsw: spectrum: Register KVD resources with devlink") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Current code uses global variables, adjusts them and passes pointer down
to devlink. With every other mlxsw_core instance, the previously passed
pointer values are rewritten. Fix this by de-globalize the variables and
also memcpy size_params during devlink resource registration.
Also, introduce a convenient size_param_init helper.

Fixes: ef3116e5403e ("mlxsw: spectrum: Register KVD resources with devlink")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
devlink: Perform cleanup of resource_set cb 2018-02-20T18:38:54+00:00 Arkadi Sharshevsky arkadis@mellanox.com 2018-02-20T07:44:21+00:00 4f4bbf7c4e3d4bd14987a13041c6b5b1ea59e21f After adding size validation logic into core cleanup is required. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
After adding size validation logic into core cleanup is required.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>