[PATCH net-next v2 3/4] net: phylink: strip out pre-March 2020 legacy code
Russell King (Oracle)
rmk+kernel at armlinux.org.uk
Sat Jul 22 13:32:59 PDT 2023
Strip out all the pre-March 2020 legacy code from phylink now that the
last user of it is gone.
Reviewed-by: Daniel Golle <daniel at makrotopia.org>
Tested-by: Daniel Golle <daniel at makrotopia.org>
Tested-by: Frank Wunderlich <frank-w at public-files.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
drivers/net/phy/phylink.c | 25 ++++------------------
include/linux/phylink.h | 45 ++++++---------------------------------
2 files changed, 10 insertions(+), 60 deletions(-)
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index f07e496319b4..df413fb15088 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1198,13 +1198,6 @@ static int phylink_change_inband_advert(struct phylink *pl)
if (test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state))
return 0;
- if (!pl->pcs && pl->config->legacy_pre_march2020) {
- /* Legacy method */
- phylink_mac_config(pl, &pl->link_config);
- phylink_pcs_an_restart(pl);
- return 0;
- }
-
phylink_dbg(pl, "%s: mode=%s/%s adv=%*pb pause=%02x\n", __func__,
phylink_an_mode_str(pl->cur_link_an_mode),
phy_modes(pl->link_config.interface),
@@ -1257,9 +1250,6 @@ static void phylink_mac_pcs_get_state(struct phylink *pl,
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);
else
state->link = 0;
}
@@ -1492,13 +1482,6 @@ 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 && 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 legacy MAC driver.
- */
- phylink_mac_config(pl, &link_state);
}
}
@@ -3513,7 +3496,7 @@ static void phylink_decode_usgmii_word(struct phylink_link_state *state,
*
* Parse the Clause 37 or Cisco SGMII link partner negotiation word into
* the phylink @state structure. This is suitable to be used for implementing
- * the mac_pcs_get_state() member of the struct phylink_mac_ops structure if
+ * the pcs_get_state() member of the struct phylink_pcs_ops structure if
* accessing @bmsr and @lpa cannot be done with MDIO directly.
*/
void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state,
@@ -3563,7 +3546,7 @@ EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_decode_state);
* Read the MAC PCS state from the MII device configured in @config and
* parse the Clause 37 or Cisco SGMII link partner negotiation word into
* the phylink @state structure. This is suitable to be directly plugged
- * into the mac_pcs_get_state() member of the struct phylink_mac_ops
+ * into the pcs_get_state() member of the struct phylink_pcs_ops
* structure.
*/
void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
@@ -3674,8 +3657,8 @@ EXPORT_SYMBOL_GPL(phylink_mii_c22_pcs_config);
* clause 37 negotiation.
*
* Restart the clause 37 negotiation with the link partner. This is
- * suitable to be directly plugged into the mac_pcs_get_state() member
- * of the struct phylink_mac_ops structure.
+ * suitable to be directly plugged into the pcs_get_state() member
+ * of the struct phylink_pcs_ops structure.
*/
void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs)
{
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 9e861c8316d0..789c516c6b4a 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -201,8 +201,6 @@ enum phylink_op_type {
* struct phylink_config - PHYLINK configuration structure
* @dev: a pointer to a struct device associated with the MAC
* @type: operation type of PHYLINK instance
- * @legacy_pre_march2020: driver has not been updated for March 2020 updates
- * (See commit 7cceb599d15d ("net: phylink: avoid mac_config calls")
* @poll_fixed_state: if true, starts link_poll,
* if MAC link is at %MLO_AN_FIXED mode.
* @mac_managed_pm: if true, indicate the MAC driver is responsible for PHY PM.
@@ -216,7 +214,6 @@ enum phylink_op_type {
struct phylink_config {
struct device *dev;
enum phylink_op_type type;
- bool legacy_pre_march2020;
bool poll_fixed_state;
bool mac_managed_pm;
bool ovr_an_inband;
@@ -230,7 +227,6 @@ struct phylink_config {
* struct phylink_mac_ops - MAC operations structure.
* @validate: Validate and update the link configuration.
* @mac_select_pcs: Select a PCS for the interface mode.
- * @mac_pcs_get_state: Read the current link state from the hardware.
* @mac_prepare: prepare for a major reconfiguration of the interface.
* @mac_config: configure the MAC for the selected mode and state.
* @mac_finish: finish a major reconfiguration of the interface.
@@ -245,8 +241,6 @@ struct phylink_mac_ops {
struct phylink_link_state *state);
struct phylink_pcs *(*mac_select_pcs)(struct phylink_config *config,
phy_interface_t interface);
- void (*mac_pcs_get_state)(struct phylink_config *config,
- struct phylink_link_state *state);
int (*mac_prepare)(struct phylink_config *config, unsigned int mode,
phy_interface_t iface);
void (*mac_config)(struct phylink_config *config, unsigned int mode,
@@ -312,25 +306,6 @@ void validate(struct phylink_config *config, unsigned long *supported,
struct phylink_pcs *mac_select_pcs(struct phylink_config *config,
phy_interface_t interface);
-/**
- * mac_pcs_get_state() - Read the current inband link state from the hardware
- * @config: a pointer to a &struct phylink_config.
- * @state: a pointer to a &struct phylink_link_state.
- *
- * Read the current inband link state from the MAC PCS, reporting the
- * current speed in @state->speed, duplex mode in @state->duplex, pause
- * mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
- * negotiation completion state in @state->an_complete, and link up state
- * in @state->link. If possible, @state->lp_advertising should also be
- * populated.
- *
- * Note: This is a legacy method. This function will not be called unless
- * legacy_pre_march2020 is set in &struct phylink_config and there is no
- * PCS attached.
- */
-void mac_pcs_get_state(struct phylink_config *config,
- struct phylink_link_state *state);
-
/**
* mac_prepare() - prepare to change the PHY interface mode
* @config: a pointer to a &struct phylink_config.
@@ -367,17 +342,9 @@ int mac_prepare(struct phylink_config *config, unsigned int mode,
* guaranteed to be correct, and so any mac_config() implementation must
* never reference these fields.
*
- * Note: For legacy March 2020 drivers (drivers with legacy_pre_march2020 set
- * in their &phylnk_config and which don't have a PCS), this function will be
- * called on each link up event, and to also change the in-band advert. For
- * non-legacy drivers, it will only be called to reconfigure the MAC for a
- * "major" change in e.g. interface mode. It will not be called for changes
- * in speed, duplex or pause modes or to change the in-band advertisement.
- * In any case, it is strongly preferred that speed, duplex and pause settings
- * are handled in the mac_link_up() method and not in this method.
- *
- * (this requires a rewrite - please refer to mac_link_up() for situations
- * where the PCS and MAC are not tightly integrated.)
+ * This will only be called to reconfigure the MAC for a "major" change in
+ * e.g. interface mode. It will not be called for changes in speed, duplex
+ * or pause modes or to change the in-band advertisement.
*
* In all negotiation modes, as defined by @mode, @state->pause indicates the
* pause settings which should be applied as follows. If %MLO_PAUSE_AN is not
@@ -409,7 +376,7 @@ int mac_prepare(struct phylink_config *config, unsigned int mode,
* 1000base-X or Cisco SGMII mode depending on the @state->interface
* mode). In both cases, link state management (whether the link
* is up or not) is performed by the MAC, and reported via the
- * mac_pcs_get_state() callback. Changes in link state must be made
+ * pcs_get_state() callback. Changes in link state must be made
* by calling phylink_mac_change().
*
* Interface mode specific details are mentioned below.
@@ -601,8 +568,8 @@ void pcs_disable(struct phylink_pcs *pcs);
* in @state->link. If possible, @state->lp_advertising should also be
* populated.
*
- * When present, this overrides mac_pcs_get_state() in &struct
- * phylink_mac_ops.
+ * When present, this overrides pcs_get_state() in &struct
+ * phylink_pcs_ops.
*/
void pcs_get_state(struct phylink_pcs *pcs,
struct phylink_link_state *state);
--
2.30.2
More information about the linux-arm-kernel
mailing list