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net: dsa: Pass pcs_poll flag from driver to PHYLINK

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The DSA drivers that implement .phylink_mac_link_state should normally
register an interrupt for the PCS, from which they should call
phylink_mac_change(). However not all switches implement this, and those
who don't should set this flag in dsa_switch in the .setup callback, so
that PHYLINK will poll for a few ms until the in-band AN link timer
expires and the PCS state settles.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2020-01-06 03:34:12 +02:00 committed by David S. Miller
parent 1511ed0a01
commit 787cac3f5a
2 changed files with 6 additions and 0 deletions
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5
include/net/dsa.h
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@ -279,6 +279,11 @@ struct dsa_switch {
*/
bool vlan_filtering;
/* MAC PCS does not provide link state change interrupt, and requires
* polling. Flag passed on to PHYLINK.
*/
bool pcs_poll;
size_t num_ports;
};

1
net/dsa/port.c
View File

@ -599,6 +599,7 @@ static int dsa_port_phylink_register(struct dsa_port *dp)
dp->pl_config.dev = ds->dev;
dp->pl_config.type = PHYLINK_DEV;
dp->pl_config.pcs_poll = ds->pcs_poll;
dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn),
mode, &dsa_port_phylink_mac_ops);