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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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7
net/dsa/dsa2.c
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@ -349,6 +349,7 @@ static void dsa_port_teardown(struct dsa_port *dp)
static int dsa_switch_setup(struct dsa_switch *ds)
{
struct dsa_devlink_priv *dl_priv;
int err;
if (ds->setup)
@ -364,9 +365,11 @@ static int dsa_switch_setup(struct dsa_switch *ds)
/* Add the switch to devlink before calling setup, so that setup can
* add dpipe tables
*/
ds->devlink = devlink_alloc(&dsa_devlink_ops, 0);
ds->devlink = devlink_alloc(&dsa_devlink_ops, sizeof(*dl_priv));
if (!ds->devlink)
return -ENOMEM;
dl_priv = devlink_priv(ds->devlink);
dl_priv->ds = ds;
err = devlink_register(ds->devlink, ds->dev);
if (err)
@ -380,6 +383,8 @@ static int dsa_switch_setup(struct dsa_switch *ds)
if (err < 0)
goto unregister_notifier;
devlink_params_publish(ds->devlink);
if (!ds->slave_mii_bus && ds->ops->phy_read) {
ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
if (!ds->slave_mii_bus) {