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Merge branch 'net-phylink-cleanup-pcs-code'

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Russell King says:

====================
net: phylink: cleanup pcs code

These two patches were part of the larger series for the mv88e6xxx
phylink pcs conversion. As this is delayed, I've decided to send these
two patches now.
====================

Link: https://lore.kernel.org/r/YrmYEC2N9mVpg9g6@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-06-28 21:30:11 -07:00
commit 957b96e35b
1 changed files with 39 additions and 30 deletions
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69
drivers/net/phy/phylink.c
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@ -43,7 +43,6 @@ struct phylink {
/* private: */
struct net_device *netdev;
const struct phylink_mac_ops *mac_ops;
const struct phylink_pcs_ops *pcs_ops;
struct phylink_config *config;
struct phylink_pcs *pcs;
struct device *dev;
@ -759,6 +758,18 @@ static void phylink_resolve_flow(struct phylink_link_state *state)
}
}
static void phylink_pcs_poll_stop(struct phylink *pl)
{
if (pl->cfg_link_an_mode == MLO_AN_INBAND)
del_timer(&pl->link_poll);
}
static void phylink_pcs_poll_start(struct phylink *pl)
{
if (pl->pcs->poll && pl->cfg_link_an_mode == MLO_AN_INBAND)
mod_timer(&pl->link_poll, jiffies + HZ);
}
static void phylink_mac_config(struct phylink *pl,
const struct phylink_link_state *state)
{
@ -779,8 +790,8 @@ static void phylink_mac_pcs_an_restart(struct phylink *pl)
if (pl->link_config.an_enabled &&
phy_interface_mode_is_8023z(pl->link_config.interface) &&
phylink_autoneg_inband(pl->cur_link_an_mode)) {
if (pl->pcs_ops)
pl->pcs_ops->pcs_an_restart(pl->pcs);
if (pl->pcs)
pl->pcs->ops->pcs_an_restart(pl->pcs);
else if (pl->config->legacy_pre_march2020)
pl->mac_ops->mac_an_restart(pl->config);
}
@ -790,6 +801,7 @@ static void phylink_major_config(struct phylink *pl, bool restart,
const struct phylink_link_state *state)
{
struct phylink_pcs *pcs = NULL;
bool pcs_changed = false;
int err;
phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
@ -802,8 +814,12 @@ static void phylink_major_config(struct phylink *pl, bool restart,
pcs);
return;
}
pcs_changed = pcs && pl->pcs != pcs;
}
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {
err = pl->mac_ops->mac_prepare(pl->config, pl->cur_link_an_mode,
state->interface);
@ -817,27 +833,17 @@ static void phylink_major_config(struct phylink *pl, bool restart,
/* If we have a new PCS, switch to the new PCS after preparing the MAC
* for the change.
*/
if (pcs) {
if (pcs_changed)
pl->pcs = pcs;
pl->pcs_ops = pcs->ops;
if (!pl->phylink_disable_state &&
pl->cfg_link_an_mode == MLO_AN_INBAND) {
if (pcs->poll)
mod_timer(&pl->link_poll, jiffies + HZ);
else
del_timer(&pl->link_poll);
}
}
phylink_mac_config(pl, state);
if (pl->pcs_ops) {
err = pl->pcs_ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
state->interface,
state->advertising,
!!(pl->link_config.pause &
MLO_PAUSE_AN));
if (pl->pcs) {
err = pl->pcs->ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
state->interface,
state->advertising,
!!(pl->link_config.pause &
MLO_PAUSE_AN));
if (err < 0)
phylink_err(pl, "pcs_config failed: %pe\n",
ERR_PTR(err));
@ -854,6 +860,8 @@ static void phylink_major_config(struct phylink *pl, bool restart,
phylink_err(pl, "mac_finish failed: %pe\n",
ERR_PTR(err));
}
phylink_pcs_poll_start(pl);
}
/*
@ -869,7 +877,7 @@ 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 && pl->config->legacy_pre_march2020) {
if (!pl->pcs && pl->config->legacy_pre_march2020) {
/* Legacy method */
phylink_mac_config(pl, &pl->link_config);
phylink_mac_pcs_an_restart(pl);
@ -886,10 +894,11 @@ static int phylink_change_inband_advert(struct phylink *pl)
* restart negotiation if the pcs_config() helper indicates that
* the programmed advertisement has changed.
*/
ret = pl->pcs_ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
pl->link_config.interface,
pl->link_config.advertising,
!!(pl->link_config.pause & MLO_PAUSE_AN));
ret = pl->pcs->ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
pl->link_config.interface,
pl->link_config.advertising,
!!(pl->link_config.pause &
MLO_PAUSE_AN));
if (ret < 0)
return ret;
@ -918,8 +927,8 @@ static void phylink_mac_pcs_get_state(struct phylink *pl,
state->an_complete = 0;
state->link = 1;
if (pl->pcs_ops)
pl->pcs_ops->pcs_get_state(pl->pcs, state);
if (pl->pcs)
pl->pcs->ops->pcs_get_state(pl->pcs, 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);
@ -992,8 +1001,8 @@ static void phylink_link_up(struct phylink *pl,
pl->cur_interface = link_state.interface;
if (pl->pcs_ops && pl->pcs_ops->pcs_link_up)
pl->pcs_ops->pcs_link_up(pl->pcs, pl->cur_link_an_mode,
if (pl->pcs && pl->pcs->ops->pcs_link_up)
pl->pcs->ops->pcs_link_up(pl->pcs, pl->cur_link_an_mode,
pl->cur_interface,
link_state.speed, link_state.duplex);
@ -1115,7 +1124,7 @@ 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 && pl->config->legacy_pre_march2020) {
} else if (!pl->pcs && 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