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- From 3f911800613a3417101563b488c51a9b310ba7fa Mon Sep 17 00:00:00 2001
- From: Vladimir Oltean <[email protected]>
- Date: Fri, 27 Dec 2019 20:14:57 +0200
- Subject: [PATCH] net: dsa: Pass pcs_poll flag from driver to PHYLINK
- 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 <[email protected]>
- Conflicts:
- include/net/dsa.h
- trivially with upstream commit 05f294a85235 ("net: dsa: allocate ports
- on touch") which was merged in v5.4-rc3.
- ---
- include/net/dsa.h | 5 +++++
- net/dsa/port.c | 1 +
- 2 files changed, 6 insertions(+)
- --- a/include/net/dsa.h
- +++ b/include/net/dsa.h
- @@ -284,6 +284,11 @@ 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;
- +
- /* Dynamically allocated ports, keep last */
- size_t num_ports;
- struct dsa_port ports[];
- --- a/net/dsa/port.c
- +++ b/net/dsa/port.c
- @@ -639,6 +639,7 @@ static int dsa_port_phylink_register(str
-
- 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);
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