From 7f976d5cf16d0a747098f67831d746fa25f18dbe Mon Sep 17 00:00:00 2001 From: Kurt Kanzenbach Date: Sat, 30 Jan 2021 14:59:33 +0100 Subject: net: dsa: hellcreek: Report VLAN table occupancy The VLAN membership configuration is cached in software already. So, it can be reported via devlink. Add support for it: |root@tsn:~# devlink resource show platform/ff240000.switch |platform/ff240000.switch: | name VLAN size 4096 occ 4 unit entry dpipe_tables none Signed-off-by: Kurt Kanzenbach Reviewed-by: Florian Fainelli Signed-off-by: Jakub Kicinski --- drivers/net/dsa/hirschmann/hellcreek.c | 59 ++++++++++++++++++++++++++++++++++ drivers/net/dsa/hirschmann/hellcreek.h | 5 +++ 2 files changed, 64 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c index 4cc51fb37e67..0ba0f6e81305 100644 --- a/drivers/net/dsa/hirschmann/hellcreek.c +++ b/drivers/net/dsa/hirschmann/hellcreek.c @@ -1000,6 +1000,51 @@ out: return ret; } +static u64 hellcreek_devlink_vlan_table_get(void *priv) +{ + struct hellcreek *hellcreek = priv; + u64 count = 0; + int i; + + mutex_lock(&hellcreek->reg_lock); + for (i = 0; i < VLAN_N_VID; ++i) + if (hellcreek->vidmbrcfg[i]) + count++; + mutex_unlock(&hellcreek->reg_lock); + + return count; +} + +static int hellcreek_setup_devlink_resources(struct dsa_switch *ds) +{ + struct devlink_resource_size_params size_params; + struct hellcreek *hellcreek = ds->priv; + int err; + + devlink_resource_size_params_init(&size_params, VLAN_N_VID, + VLAN_N_VID, + 1, DEVLINK_RESOURCE_UNIT_ENTRY); + + err = dsa_devlink_resource_register(ds, "VLAN", VLAN_N_VID, + HELLCREEK_DEVLINK_PARAM_ID_VLAN_TABLE, + DEVLINK_RESOURCE_ID_PARENT_TOP, + &size_params); + if (err) + goto out; + + dsa_devlink_resource_occ_get_register(ds, + HELLCREEK_DEVLINK_PARAM_ID_VLAN_TABLE, + hellcreek_devlink_vlan_table_get, + hellcreek); + + return 0; + +out: + dsa_devlink_resources_unregister(ds); + + return err; +} + static int hellcreek_setup(struct dsa_switch *ds) { struct hellcreek *hellcreek = ds->priv; @@ -1053,9 +1098,22 @@ static int hellcreek_setup(struct dsa_switch *ds) return ret; } + /* Register devlink resources with DSA */ + ret = hellcreek_setup_devlink_resources(ds); + if (ret) { + dev_err(hellcreek->dev, + "Failed to setup devlink resources!\n"); + return ret; + } + return 0; } +static void hellcreek_teardown(struct dsa_switch *ds) +{ + dsa_devlink_resources_unregister(ds); +} + static void hellcreek_phylink_validate(struct dsa_switch *ds, int port, unsigned long *supported, struct phylink_link_state *state) @@ -1447,6 +1505,7 @@ static const struct dsa_switch_ops hellcreek_ds_ops = { .port_vlan_del = hellcreek_vlan_del, .port_vlan_filtering = hellcreek_vlan_filtering, .setup = hellcreek_setup, + .teardown = hellcreek_teardown, }; static int hellcreek_probe(struct platform_device *pdev) diff --git a/drivers/net/dsa/hirschmann/hellcreek.h b/drivers/net/dsa/hirschmann/hellcreek.h index 854639f87247..11539916a6be 100644 --- a/drivers/net/dsa/hirschmann/hellcreek.h +++ b/drivers/net/dsa/hirschmann/hellcreek.h @@ -298,4 +298,9 @@ struct hellcreek { #define dw_to_hellcreek_port(dw) \ container_of(dw, struct hellcreek_port, schedule_work) +/* Devlink resources */ +enum hellcreek_devlink_resource_id { + HELLCREEK_DEVLINK_PARAM_ID_VLAN_TABLE, +}; + #endif /* _HELLCREEK_H_ */ -- cgit v1.2.3-58-ga151