diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0381-net-dsa-Pass-pcs_poll-flag-from-driver-to-PHYLINK.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0381-net-dsa-Pass-pcs_poll-flag-from-driver-to-PHYLINK.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0381-net-dsa-Pass-pcs_poll-flag-from-driver-to-PHYLINK.patch b/target/linux/layerscape/patches-5.4/701-net-0381-net-dsa-Pass-pcs_poll-flag-from-driver-to-PHYLINK.patch new file mode 100644 index 0000000000..40d22f4652 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0381-net-dsa-Pass-pcs_poll-flag-from-driver-to-PHYLINK.patch @@ -0,0 +1,48 @@ +From 3f911800613a3417101563b488c51a9b310ba7fa Mon Sep 17 00:00:00 2001 +From: Vladimir Oltean <vladimir.oltean@nxp.com> +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 <vladimir.oltean@nxp.com> + +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 +@@ -277,6 +277,11 @@ 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 +@@ -625,6 +625,7 @@ 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); |