From fcb85b07419e2d2bb491430fbdfacad1b014d9a3 Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Sat, 20 Nov 2021 19:49:53 +0000 Subject: net: phylink: use legacy_pre_march2020 Use the legacy flag to indicate whether we should operate in legacy mode. This allows us to stop using the presence of a PCS as an indicator to the age of the phylink user, and make PCS presence optional. Legacy mode involves: 1) calling mac_config() whenever the link comes up 2) calling mac_config() whenever the inband advertisement changes, possibly followed by a call to mac_an_restart() 3) making use of mac_an_restart() 4) making use of mac_pcs_get_state() All the above functionality was moved to a seperate "PCS" block of operations in March 2020. Update the documents to indicate that the differences that this flag makes. Signed-off-by: Russell King (Oracle) --- drivers/net/phy/phylink.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/net/phy') diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 5b6838b6132d..672757c66d61 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -742,7 +742,7 @@ static void phylink_mac_pcs_an_restart(struct phylink *pl) phylink_autoneg_inband(pl->cur_link_an_mode)) { if (pl->pcs_ops) pl->pcs_ops->pcs_an_restart(pl->pcs); - else + else if (pl->config->legacy_pre_march2020) pl->mac_ops->mac_an_restart(pl->config); } } @@ -803,7 +803,7 @@ static int phylink_change_inband_advert(struct phylink *pl) if (test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) return 0; - if (!pl->pcs_ops) { + if (!pl->pcs_ops && pl->config->legacy_pre_march2020) { /* Legacy method */ phylink_mac_config(pl, &pl->link_config); phylink_mac_pcs_an_restart(pl); @@ -854,7 +854,8 @@ static void phylink_mac_pcs_get_state(struct phylink *pl, if (pl->pcs_ops) pl->pcs_ops->pcs_get_state(pl->pcs, state); - else if (pl->mac_ops->mac_pcs_get_state) + else if (pl->mac_ops->mac_pcs_get_state && + pl->config->legacy_pre_march2020) pl->mac_ops->mac_pcs_get_state(pl->config, state); else state->link = 0; @@ -1048,12 +1049,11 @@ static void phylink_resolve(struct work_struct *w) } phylink_major_config(pl, false, &link_state); pl->link_config.interface = link_state.interface; - } else if (!pl->pcs_ops) { + } else if (!pl->pcs_ops && pl->config->legacy_pre_march2020) { /* The interface remains unchanged, only the speed, * duplex or pause settings have changed. Call the * old mac_config() method to configure the MAC/PCS - * only if we do not have a PCS installed (an - * unconverted user.) + * only if we do not have a legacy MAC driver. */ phylink_mac_config(pl, &link_state); } -- cgit