Commit 142061eb authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: dsa: loop: Return VLAN table size through devlink 



We return the VLAN table size through devlink as a simple parameter, we
do not support altering it at runtime:

devlink resource show mdio_bus/fixed-0:1f
mdio_bus/fixed-0:1f:
  name VTU size 4096 occ 0 unit entry dpipe_tables none

and after configure a bridge with VLAN filtering:

devlink resource show mdio_bus/fixed-0:1f
mdio_bus/fixed-0:1f:
  name VTU size 4096 occ 1 unit entry dpipe_tables none

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f0408ca4

drivers/net/dsa/dsa_loop.c

+54 −1
Original line number Diff line number Diff line
@@ -28,6 +28,53 @@ static struct dsa_loop_mib_entry dsa_loop_mibs[] = { 


static struct phy_device *phydevs[PHY_MAX_ADDR];



enum dsa_loop_devlink_resource_id {

	DSA_LOOP_DEVLINK_PARAM_ID_VTU,

};



static u64 dsa_loop_devlink_vtu_get(void *priv)

{

	struct dsa_loop_priv *ps = priv;

	unsigned int i, count = 0;

	struct dsa_loop_vlan *vl;



	for (i = 0; i < ARRAY_SIZE(ps->vlans); i++) {

		vl = &ps->vlans[i];

		if (vl->members)

			count++;

	}



	return count;

}



static int dsa_loop_setup_devlink_resources(struct dsa_switch *ds)

{

	struct devlink_resource_size_params size_params;

	struct dsa_loop_priv *ps = ds->priv;

	int err;



	devlink_resource_size_params_init(&size_params, ARRAY_SIZE(ps->vlans),

					  ARRAY_SIZE(ps->vlans),

					  1, DEVLINK_RESOURCE_UNIT_ENTRY);



	err = dsa_devlink_resource_register(ds, "VTU", ARRAY_SIZE(ps->vlans),

					    DSA_LOOP_DEVLINK_PARAM_ID_VTU,

					    DEVLINK_RESOURCE_ID_PARENT_TOP,

					    &size_params);

	if (err)

		goto out;



	dsa_devlink_resource_occ_get_register(ds,

					      DSA_LOOP_DEVLINK_PARAM_ID_VTU,

					      dsa_loop_devlink_vtu_get, ps);



	return 0;



out:

	dsa_devlink_resources_unregister(ds);

	return err;

}



static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds,

						   int port,

						   enum dsa_tag_protocol mp)
@@ -48,7 +95,12 @@ static int dsa_loop_setup(struct dsa_switch *ds) 


	dev_dbg(ds->dev, "%s\n", __func__);



	return 0;

	return dsa_loop_setup_devlink_resources(ds);

}



static void dsa_loop_teardown(struct dsa_switch *ds)

{

	dsa_devlink_resources_unregister(ds);

}



static int dsa_loop_get_sset_count(struct dsa_switch *ds, int port, int sset)
@@ -243,6 +295,7 @@ static int dsa_loop_port_max_mtu(struct dsa_switch *ds, int port) 
static const struct dsa_switch_ops dsa_loop_driver = {

	.get_tag_protocol	= dsa_loop_get_protocol,

	.setup			= dsa_loop_setup,

	.teardown		= dsa_loop_teardown,

	.get_strings		= dsa_loop_get_strings,

	.get_ethtool_stats	= dsa_loop_get_ethtool_stats,

	.get_sset_count		= dsa_loop_get_sset_count,

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