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49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
From 3f911800613a3417101563b488c51a9b310ba7fa Mon Sep 17 00:00:00 2001
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From: Vladimir Oltean <vladimir.oltean@nxp.com>
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Date: Fri, 27 Dec 2019 20:14:57 +0200
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Subject: [PATCH] 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
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register an interrupt for the PCS, from which they should call
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phylink_mac_change(). However not all switches implement this, and those
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who don't should set this flag in dsa_switch in the .setup callback, so
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that PHYLINK will poll for a few ms until the in-band AN link timer
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expires and the PCS state settles.
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Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
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Conflicts:
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include/net/dsa.h
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trivially with upstream commit 05f294a85235 ("net: dsa: allocate ports
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on touch") which was merged in v5.4-rc3.
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---
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include/net/dsa.h | 5 +++++
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net/dsa/port.c | 1 +
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2 files changed, 6 insertions(+)
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--- a/include/net/dsa.h
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+++ b/include/net/dsa.h
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@@ -284,6 +284,11 @@ struct dsa_switch {
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*/
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bool vlan_filtering;
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+ /* MAC PCS does not provide link state change interrupt, and requires
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+ * polling. Flag passed on to PHYLINK.
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+ */
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+ bool pcs_poll;
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+
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/* Dynamically allocated ports, keep last */
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size_t num_ports;
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struct dsa_port ports[];
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--- a/net/dsa/port.c
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+++ b/net/dsa/port.c
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@@ -639,6 +639,7 @@ static int dsa_port_phylink_register(str
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dp->pl_config.dev = ds->dev;
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dp->pl_config.type = PHYLINK_DEV;
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+ dp->pl_config.pcs_poll = ds->pcs_poll;
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dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn),
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mode, &dsa_port_phylink_mac_ops);
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