[PATCH RFC net-next 07/12] net: dsa: ksz8795: convert to phylink_generic_validate()

Russell King (Oracle)
2021-11-24T17:53:04Z

Populate the supported interfaces and MAC capabilities for the
Microchip KSZ8795 DSA switch and remove the old validate implementation
to allow DSA to use phylink_generic_validate() for this switch driver.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
drivers/net/dsa/microchip/ksz8795.c | 45 ++++++++---------------------
1 file changed, 12 insertions(+), 33 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 43fc3087aeb3..0f1228442d7f 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1502,27 +1502,22 @@ static int ksz8_setup(struct dsa_switch *ds)
return 0;
}

-static void ksz8_validate(struct dsa_switch *ds, int port,
- unsigned long *supported,
- struct phylink_link_state *state)
+static void ksz8_get_caps(struct dsa_switch *ds, int port,
+ struct phylink_config *config)
{
- __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
struct ksz_device *dev = ds->priv;

if (port == dev->cpu_port) {
- if (state->interface != PHY_INTERFACE_MODE_RMII &&
- state->interface != PHY_INTERFACE_MODE_MII &&
- state->interface != PHY_INTERFACE_MODE_NA)
- goto unsupported;
+ __set_bit(PHY_INTERFACE_MODE_RMII,
+ config->supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_MII,
+ config->supported_interfaces);
} else {
- if (state->interface != PHY_INTERFACE_MODE_INTERNAL &&
- state->interface != PHY_INTERFACE_MODE_NA)
- goto unsupported;
+ __set_bit(PHY_INTERFACE_MODE_INTERNAL,
+ config->supported_interfaces);
}

- /* Allow all the expected bits */
- phylink_set_port_modes(mask);
- phylink_set(mask, Autoneg);
+ config->mac_capabilities = MAC_10 | MAC_100;

/* Silicon Errata Sheet (DS80000830A):
* "Port 1 does not respond to received flow control PAUSE frames"
@@ -1530,27 +1525,11 @@ static void ksz8_validate(struct dsa_switch *ds, int port,
* switches.
*/
if (!ksz_is_ksz88x3(dev) || port)
- phylink_set(mask, Pause);
+ config->mac_capabilities |= MAC_SYM_PAUSE;

/* Asym pause is not supported on KSZ8863 and KSZ8873 */
if (!ksz_is_ksz88x3(dev))
- phylink_set(mask, Asym_Pause);
-
- /* 10M and 100M are only supported */
- phylink_set(mask, 10baseT_Half);
- phylink_set(mask, 10baseT_Full);
- phylink_set(mask, 100baseT_Half);
- phylink_set(mask, 100baseT_Full);
-
- linkmode_and(supported, supported, mask);
- linkmode_and(state->advertising, state->advertising, mask);
-
- return;
-
-unsupported:
- linkmode_zero(supported);
- dev_err(ds->dev, "Unsupported interface: %s, port: %d\n",
- phy_modes(state->interface), port);
+ config->mac_capabilities |= MAC_ASYM_PAUSE;
}

static const struct dsa_switch_ops ksz8_switch_ops = {
@@ -1559,7 +1538,7 @@ static const struct dsa_switch_ops ksz8_switch_ops = {
.setup = ksz8_setup,
.phy_read = ksz_phy_read16,
.phy_write = ksz_phy_write16,
- .phylink_validate = ksz8_validate,
+ .phylink_get_caps = ksz8_get_caps,
.phylink_mac_link_down = ksz_mac_link_down,
.port_enable = ksz_enable_port,
.get_strings = ksz8_get_strings,
--
2.30.2