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net: dsa: wire up devlink info get

Browse source 
Allow the DSA drivers to implement the devlink call to get info info,
e.g. driver name, firmware version, ASIC ID, etc.

v2:
Combine declaration and the assignment on a single line.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2020-09-18 21:11:08 +02:00 committed by David S. Miller
parent bfb2554289
commit 0f06b855a9
2 changed files with 20 additions and 4 deletions
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5
include/net/dsa.h
View file

@ -612,11 +612,14 @@ struct dsa_switch_ops {
bool (*port_rxtstamp)(struct dsa_switch *ds, int port,
struct sk_buff *skb, unsigned int type);
/* Devlink parameters */
/* Devlink parameters, etc */
int (*devlink_param_get)(struct dsa_switch *ds, u32 id,
struct devlink_param_gset_ctx *ctx);
int (*devlink_param_set)(struct dsa_switch *ds, u32 id,
struct devlink_param_gset_ctx *ctx);
int (*devlink_info_get)(struct dsa_switch *ds,
struct devlink_info_req *req,
struct netlink_ext_ack *extack);
/*
* MTU change functionality. Switches can also adjust their MRU through

19
net/dsa/dsa2.c
View file

@ -21,9 +21,6 @@
static DEFINE_MUTEX(dsa2_mutex);
LIST_HEAD(dsa_tree_list);
static const struct devlink_ops dsa_devlink_ops = {
};
struct dsa_switch *dsa_switch_find(int tree_index, int sw_index)
{
struct dsa_switch_tree *dst;
@ -382,6 +379,22 @@ static void dsa_port_teardown(struct dsa_port *dp)
dp->setup = false;
}
static int dsa_devlink_info_get(struct devlink *dl,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (ds->ops->devlink_info_get)
return ds->ops->devlink_info_get(ds, req, extack);
return -EOPNOTSUPP;
}
static const struct devlink_ops dsa_devlink_ops = {
.info_get = dsa_devlink_info_get,
};
static int dsa_switch_setup(struct dsa_switch *ds)
{
struct dsa_devlink_priv *dl_priv;