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net: dsa: Add support for devlink device parameters

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Add plumbing to allow DSA drivers to register parameters with devlink.

To keep with the abstraction, the DSA drivers pass the ds structure to
these helpers, and the DSA core then translates that to the devlink
structure associated to the device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2019-10-25 01:03:51 +02:00 • committed by David S. Miller
parent ebdcebcb8b
commit 6b29752423
3 changed files with 77 additions and 1 deletions
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23
include/net/dsa.h
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@ -550,6 +550,29 @@ struct dsa_switch_ops {
*/
netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port,
struct sk_buff *skb);
/* Devlink parameters */
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);
};
#define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \
DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \
dsa_devlink_param_get, dsa_devlink_param_set, NULL)
int dsa_devlink_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx);
int dsa_devlink_param_set(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx);
int dsa_devlink_params_register(struct dsa_switch *ds,
const struct devlink_param *params,
size_t params_count);
void dsa_devlink_params_unregister(struct dsa_switch *ds,
const struct devlink_param *params,
size_t params_count);
struct dsa_devlink_priv {
struct dsa_switch *ds;
};
struct dsa_switch_driver {