split phylink PCS operations and add PCS support for dpaa2
Subsystems (4)
Russell King - ARM Linux admin
maintainercover split phylink PCS operations and add PCS support for dpaa2
This series splits the phylink_mac_ops structure so that PCS can be supported separately with their own PCS operations, separating them from the MAC layer. This may need adaption later as more users come along.
drivers/net/phy/phylink.c | 102 ++++++++++++++++++++++++++++++---------------- include/linux/phylink.h | 11 +++++ 2 files changed, 78 insertions(+), 35 deletions(-)
Signature · 2 lines
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up
PATCH 1/2 net: phylink: rename 'ops' to 'mac_ops'
Rename the bland 'ops' member of struct phylink to be a more descriptive 'mac_ops' - this is necessary as we're about to introduce another set of operations.
Reviewed-by Andrew Lunn <[email protected]>
Signed-off-by Russell King <[email protected]>
--- drivers/net/phy/phylink.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-)
drivers/net/phy/phylink.c +15 -15
@@ -40,7 +40,7 @@ enum {struct phylink {/* private: */ struct net_device *netdev; -const struct phylink_mac_ops *ops; +const struct phylink_mac_ops *mac_ops;struct phylink_config *config;struct device *dev;unsigned int old_link_state:1 ;
@@ -154,7 +154,7 @@ static const char *phylink_an_mode_str(unsigned int mode)static int phylink_validate (struct phylink *pl,unsigned long *supported,struct phylink_link_state *state) { - pl->ops->validate (pl->config, supported, state); + pl->mac_ops->validate (pl->config, supported, state);return phylink_is_empty_linkmode (supported) ? -EINVAL :0 ; }
@@ -415,7 +415,7 @@ static void phylink_mac_config(struct phylink *pl, __ETHTOOL_LINK_MODE_MASK_NBITS, state->advertising, state->pause, state->link, state->an_enabled); - pl->ops->mac_config (pl->config, pl->cur_link_an_mode, state); + pl->mac_ops->mac_config (pl->config, pl->cur_link_an_mode, state); } static void phylink_mac_config_up(struct phylink *pl,
@@ -429,7 +429,7 @@ static void phylink_mac_an_restart(struct phylink *pl) {if (pl->link_config.an_enabled &&phy_interface_mode_is_8023z (pl->link_config.interface)) - pl->ops->mac_an_restart (pl->config); + pl->mac_ops->mac_an_restart (pl->config); } static void phylink_mac_pcs_get_state(struct phylink *pl,
@@ -445,7 +445,7 @@ static void phylink_mac_pcs_get_state(struct phylink *pl, state->an_complete =0 ; state->link =1 ; - pl->ops->mac_pcs_get_state (pl->config, state); + pl->mac_ops->mac_pcs_get_state (pl->config, state); }/* The fixed state is... fixed except for the link state,
@@ -512,11 +512,11 @@ static void phylink_mac_link_up(struct phylink *pl,struct net_device *ndev = pl->netdev; pl->cur_interface = link_state.interface; - pl->ops->mac_link_up (pl->config, pl->phydev, - pl->cur_link_an_mode, pl->cur_interface, - link_state.speed, link_state.duplex, - !!(link_state.pause &MLO_PAUSE_TX ), - !!(link_state.pause &MLO_PAUSE_RX )); + pl->mac_ops->mac_link_up (pl->config, pl->phydev, + pl->cur_link_an_mode, pl->cur_interface, + link_state.speed, link_state.duplex, + !!(link_state.pause &MLO_PAUSE_TX ), + !!(link_state.pause &MLO_PAUSE_RX ));if (ndev)netif_carrier_on (ndev);
@@ -534,8 +534,8 @@ static void phylink_mac_link_down(struct phylink *pl)if (ndev)netif_carrier_off (ndev); - pl->ops->mac_link_down (pl->config, pl->cur_link_an_mode, - pl->cur_interface); + pl->mac_ops->mac_link_down (pl->config, pl->cur_link_an_mode, + pl->cur_interface);phylink_info (pl,"Link is Down\n" ); }
@@ -666,7 +666,7 @@ static int phylink_register_sfp(struct phylink *pl,* @fwnode: a pointer to a &struct fwnode_handle describing the network * interface * @iface: the desired link mode defined by &typedef phy_interface_t -* @ops: a pointer to a &struct phylink_mac_ops for the MAC. +* @mac_ops: a pointer to a &struct phylink_mac_ops for the MAC. * * Create a new phylink instance, and parse the link parameters found in @np. * This will parse in-band modes, fixed-link or SFP configuration.
@@ -679,7 +679,7 @@ static int phylink_register_sfp(struct phylink *pl,struct phylink *phylink_create (struct phylink_config *config,struct fwnode_handle *fwnode,phy_interface_t iface, -const struct phylink_mac_ops *ops) +const struct phylink_mac_ops *mac_ops) {struct phylink *pl;int ret;
@@ -712,7 +712,7 @@ struct phylink *phylink_create(struct phylink_config *config, pl->link_config.speed =SPEED_UNKNOWN ; pl->link_config.duplex =DUPLEX_UNKNOWN ; pl->link_config.an_enabled = true; - pl->ops = ops; + pl->mac_ops = mac_ops;__set_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state);timer_setup (&pl->link_poll, phylink_fixed_poll,0 );
Signature · 1 line
2.20.1
PATCH 2/2 net: phylink: add separate pcs operations structure
In reply to Russell King - ARM Linux adminAdd a separate set of PCS operations, which MAC drivers can use to couple phylink with their associated MAC PCS layer. The PCS operations include:
- pcs_get_state() - reads the link up/down, resolved speed, duplex and pause from the PCS.
- pcs_config() - configures the PCS for the specified mode, PHY interface type, and setting the advertisement.
- pcs_an_restart() - restarts 802.3 in-band negotiation with the link partner
- pcs_link_up() - informs the PCS that link has come up, and the parameters of the link. Link parameters are used to program the PCS for fixed speed and non-inband modes.
Signed-off-by Russell King <[email protected]>
--- drivers/net/phy/phylink.c | 76 +++++++++++++++++++++++++++------------ include/linux/phylink.h | 11 ++++++ 2 files changed, 65 insertions(+), 22 deletions(-)
drivers/net/phy/phylink.c +54 -22
@@ -41,6 +41,7 @@ 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 device *dev; unsigned int old_link_state:1;
@@ -425,11 +426,31 @@ static void phylink_mac_config_up(struct phylink *pl,phylink_mac_config (pl, state); } -static void phylink_mac_an_restart (struct phylink *pl) +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)) - pl->mac_ops->mac_an_restart (pl->config); +phy_interface_mode_is_8023z (pl->link_config.interface)) { +if (pl->pcs_ops) + pl->pcs_ops->pcs_an_restart (pl->config); +else + pl->mac_ops->mac_an_restart (pl->config); + } +} + +static void phylink_pcs_config (struct phylink *pl,bool force_restart, +const struct phylink_link_state *state) +{ +bool restart = force_restart; + +if (pl->pcs_ops && pl->pcs_ops->pcs_config (pl->config, + pl->cur_link_an_mode, + state)) + restart = true; + +phylink_mac_config (pl, state); + +if (restart) +phylink_mac_pcs_an_restart (pl); } static void phylink_mac_pcs_get_state(struct phylink *pl,
@@ -445,7 +466,10 @@ static void phylink_mac_pcs_get_state(struct phylink *pl, state->an_complete =0 ; state->link =1 ; - pl->mac_ops->mac_pcs_get_state (pl->config, state); +if (pl->pcs_ops) + pl->pcs_ops->pcs_get_state (pl->config, state); +else + pl->mac_ops->mac_pcs_get_state (pl->config, state); }/* The fixed state is... fixed except for the link state,
@@ -463,7 +487,7 @@ static void phylink_get_fixed_state(struct phylink *pl,phylink_resolve_flow (state); } -static void phylink_mac_initial_config (struct phylink *pl) +static void phylink_mac_initial_config (struct phylink *pl,bool force_restart) {struct phylink_link_state link_state;
@@ -489,7 +513,7 @@ static void phylink_mac_initial_config(struct phylink *pl) link_state.link = false;phylink_apply_manual_flow (pl, &link_state); -phylink_mac_config (pl, &link_state); +phylink_pcs_config (pl, force_restart, &link_state); }static const char *phylink_pause_to_str (int pause)
@@ -506,12 +530,18 @@ static const char *phylink_pause_to_str(int pause) } } -static void phylink_mac_link_up (struct phylink *pl, -struct phylink_link_state link_state) +static void phylink_link_up (struct phylink *pl, +struct phylink_link_state link_state) {struct net_device *ndev = pl->netdev; pl->cur_interface = link_state.interface; + +if (pl->pcs_ops && pl->pcs_ops->pcs_link_up) + pl->pcs_ops->pcs_link_up (pl->config, pl->cur_link_an_mode, + pl->cur_interface, + link_state.speed, link_state.duplex); + pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->cur_link_an_mode, pl->cur_interface, link_state.speed, link_state.duplex,
@@ -528,7 +558,7 @@ static void phylink_mac_link_up(struct phylink *pl, phylink_pause_to_str(link_state.pause)); } -static void phylink_mac_link_down (struct phylink *pl) +static void phylink_link_down (struct phylink *pl) {struct net_device *ndev = pl->netdev;
@@ -597,9 +627,9 @@ static void phylink_resolve(struct work_struct *w)if (link_changed) { pl->old_link_state = link_state.link;if (!link_state.link) -phylink_mac_link_down (pl); +phylink_link_down (pl);else -phylink_mac_link_up (pl, link_state); +phylink_link_up (pl, link_state); }if (!link_state.link && pl->mac_link_dropped) { pl->mac_link_dropped = false;
@@ -746,6 +776,12 @@ struct phylink *phylink_create(struct phylink_config *config, }EXPORT_SYMBOL_GPL (phylink_create); +void phylink_add_pcs (struct phylink *pl,const struct phylink_pcs_ops *ops) +{ + pl->pcs_ops = ops; +} +EXPORT_SYMBOL_GPL (phylink_add_pcs); +/** * phylink_destroy() - cleanup and destroy the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create()
@@ -1082,14 +1118,12 @@ void phylink_start(struct phylink *pl)/* Apply the link configuration to the MAC when starting. This allows * a fixed-link to start with the correct parameters, and also * ensures that we set the appropriate advertisement for Serdes links. -*/ -phylink_mac_initial_config (pl); - -/* Restart autonegotiation if using 802.3z to ensure that the link +* +* Restart autonegotiation if using 802.3z to ensure that the link * parameters are properly negotiated. This is necessary for DSA * switches using 802.3z negotiation to ensure they see our modes. */ -phylink_mac_an_restart (pl); +phylink_mac_initial_config (pl, true);clear_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state);phylink_run_resolve (pl);
@@ -1386,8 +1420,7 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,* advertisement; the only thing we have is the pause * modes which can only come from a PHY. */ -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex); }
@@ -1415,7 +1448,7 @@ int phylink_ethtool_nway_reset(struct phylink *pl)if (pl->phydev) ret =phy_restart_aneg (pl->phydev); -phylink_mac_an_restart (pl); +phylink_mac_pcs_an_restart (pl);return ret; }
@@ -1494,8 +1527,7 @@ int phylink_ethtool_set_pauseparam(struct phylink *pl, pause->tx_pause); }else if (!test_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state)) { -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex);
@@ -1901,7 +1933,7 @@ static int phylink_sfp_config(struct phylink *pl, u8 mode,if (changed && !test_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state)) -phylink_mac_initial_config (pl); +phylink_mac_initial_config (pl, false);return ret; }
include/linux/phylink.h +11 -0
@@ -97,6 +97,16 @@ struct phylink_mac_ops { bool tx_pause, bool rx_pause); }; +struct phylink_pcs_ops { +void (*pcs_get_state)(struct phylink_config *config, +struct phylink_link_state *state); +int (*pcs_config)(struct phylink_config *config,unsigned int mode, +const struct phylink_link_state *state); +void (*pcs_an_restart)(struct phylink_config *config); +void (*pcs_link_up)(struct phylink_config *config,unsigned int mode, +phy_interface_t interface,int speed,int duplex); +}; +#if 0 /* For kernel-doc purposes only. */ /** * validate - Validate and update the link configuration
@@ -273,6 +283,7 @@ void mac_link_up(struct phylink_config *config, struct phy_device *phy,struct phylink *phylink_create (struct phylink_config *,struct fwnode_handle *,phy_interface_t iface,const struct phylink_mac_ops *ops); +void phylink_add_pcs (struct phylink *,const struct phylink_pcs_ops *ops);void phylink_destroy (struct phylink *);int phylink_connect_phy (struct phylink *,struct phy_device *);
Signature · 1 line
2.20.1
RE: [PATCH net-next 2/2] net: phylink: add separate pcs operations structure
Quoted 16 lines
Subject: [PATCH net-next 2/2] net: phylink: add separate pcs operations structure
Add a separate set of PCS operations, which MAC drivers can use to couple phylink with their associated MAC PCS layer. The PCS operations include:
-
pcs_get_state()- reads the link up/down, resolved speed, duplex and pause from the PCS.
-pcs_config()- configures the PCS for the specified mode, PHY interface type, and setting the advertisement.
-pcs_an_restart()- restarts 802.3 in-band negotiation with the link partner
-pcs_link_up()- informs the PCS that link has come up, and the parameters of the link. Link parameters are used to program the PCS for fixed speed and non-inband modes.
Quoted 2 lines
Signed-off-by Russell King <[email protected]>---
Are the old mac ops going to be removed at some point (after the drivers have been converted to the PCS operations)? I am referring to mac_pcs_get_state() and mac_an_restart().
Also, what are the rules for what should and shouldn't be done in the new pcs_config() method? Maybe a documentation entry for this would help.
Quoted 224 lines
drivers/net/phy/phylink.c | 76 +++++++++++++++++++++++++++------------ include/linux/phylink.h | 11 ++++++ 2 files changed, 65 insertions(+), 22 deletions(-)drivers/net/phy/phylink.c index renamed from drivers/net/phy/phylink.c +0
-0
a34a3be92dba..abe2cc168f93100644drivers/net/phy/phylink.c +23
-3@@ -41,6 +41,7 @@ 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 device *dev; unsigned int old_link_state:1;@@ -425,11 +426,31 @@ static void phylink_mac_config_up(struct phylink *pl,phylink_mac_config (pl, state); } -static void phylink_mac_an_restart (struct phylink *pl) +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)) - pl->mac_ops->mac_an_restart (pl->config); +phy_interface_mode_is_8023z (pl->link_config.interface)) { +if (pl->pcs_ops) + pl->pcs_ops->pcs_an_restart (pl->config); +else + pl->mac_ops->mac_an_restart (pl->config); + } +} + +static void phylink_pcs_config (struct phylink *pl,bool force_restart, +const struct phylink_link_state *state) { +bool restart = force_restart; + +if (pl->pcs_ops && pl->pcs_ops->pcs_config (pl->config, + pl->cur_link_an_mode, + state)) + restart = true; + +phylink_mac_config (pl, state); + +if (restart) +phylink_mac_pcs_an_restart (pl); } static void phylink_mac_pcs_get_state(struct phylink *pl, @@ -445,7 +466,10@@ static void phylink_mac_pcs_get_state(struct phylink *pl,
drivers/net/phy/phylink.c +4
-1state->an_complete =0 ; state->link =1 ; - pl->mac_ops->mac_pcs_get_state (pl->config, state); +if (pl->pcs_ops) + pl->pcs_ops->pcs_get_state (pl->config, state); +else + pl->mac_ops->mac_pcs_get_state (pl->config, state); }/* The fixed state is... fixed except for the link state, @@ -463,7 +487,7 @@ static void phylink_get_fixed_state(struct phylink *pl,
drivers/net/phy/phylink.c +3
-2phylink_resolve_flow (state); } -static void phylink_mac_initial_config (struct phylink *pl) +static void phylink_mac_initial_config (struct phylink *pl,bool +force_restart) {struct phylink_link_state link_state;@@ -489,7 +513,7 @@ static void phylink_mac_initial_config(struct phylink *pl) link_state.link = false;phylink_apply_manual_flow (pl, &link_state); -phylink_mac_config (pl, &link_state); +phylink_pcs_config (pl, force_restart, &link_state); } static const char *phylink_pause_to_str(int pause) @@ -506,12 +530,18 @@static const char *phylink_pause_to_str(int pause)
drivers/net/phy/phylink.c +18
-5} } -static void phylink_mac_link_up (struct phylink *pl, -struct phylink_link_state link_state) +static void phylink_link_up (struct phylink *pl, +struct phylink_link_state link_state) {struct net_device *ndev = pl->netdev; pl->cur_interface = link_state.interface; + +if (pl->pcs_ops && pl->pcs_ops->pcs_link_up) + pl->pcs_ops->pcs_link_up (pl->config, pl->cur_link_an_mode, + pl->cur_interface, + link_state.speed, link_state.duplex); + pl->mac_ops->mac_link_up (pl->config, pl->phydev, pl->cur_link_an_mode, pl->cur_interface, link_state.speed, link_state.duplex, @@ -528,7 +558,7 @@ static void phylink_mac_link_up(struct phylink *pl, phylink_pause_to_str(link_state.pause)); } -static void phylink_mac_link_down (struct phylink *pl) +static void phylink_link_down (struct phylink *pl) {struct net_device *ndev = pl->netdev;@@ -597,9 +627,9 @@ static void phylink_resolve(struct work_struct *w)if (link_changed) { pl->old_link_state = link_state.link;if (!link_state.link) -phylink_mac_link_down (pl); +phylink_link_down (pl);else -phylink_mac_link_up (pl, link_state); +phylink_link_up (pl, link_state); }if (!link_state.link && pl->mac_link_dropped) { pl->mac_link_dropped = false;@@ -746,6 +776,12 @@ struct phylink *phylink_create(struct phylink_config *config, } EXPORT_SYMBOL_GPL(phylink_create); +void phylink_add_pcs (struct phylink *pl,const struct phylink_pcs_ops +*ops) { + pl->pcs_ops = ops; +} +EXPORT_SYMBOL_GPL (phylink_add_pcs); +/** * phylink_destroy() - cleanup and destroy the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() @@ - 1082,14 +1118,12 @@ void phylink_start(struct phylink *pl) drivers/net/phy/phylink.c +7
-11/* Apply the link configuration to the MAC when starting. This allows * a fixed-link to start with the correct parameters, and also * ensures that we set the appropriate advertisement for Serdes links. -*/ -phylink_mac_initial_config (pl); - -/* Restart autonegotiation if using 802.3z to ensure that the link +* +* Restart autonegotiation if using 802.3z to ensure that the link * parameters are properly negotiated. This is necessary for DSA * switches using 802.3z negotiation to ensure they see our modes. */ -phylink_mac_an_restart (pl); +phylink_mac_initial_config (pl, true);clear_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state);phylink_run_resolve (pl);@@ -1386,8 +1420,7 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,* advertisement; the only thing we have is the pause * modes which can only come from a PHY. */ -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex); }@@ -1415,7 +1448,7 @@ int phylink_ethtool_nway_reset(struct phylink *pl)if (pl->phydev) ret =phy_restart_aneg (pl->phydev); -phylink_mac_an_restart (pl); +phylink_mac_pcs_an_restart (pl);return ret; }@@ -1494,8 +1527,7 @@ int phylink_ethtool_set_pauseparam(struct phylink *pl, pause->tx_pause); }else if (!test_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state)) { -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex);@@ -1901,7 +1933,7 @@ static int phylink_sfp_config(struct phylink *pl, u8 mode, if (changed && !test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) -phylink_mac_initial_config (pl); +phylink_mac_initial_config (pl, false);return ret;}
include/linux/phylink.h index renamed from include/linux/phylink.h +0
-0
8fa6df3b881b..dc27dd341ebd100644include/linux/phylink.h +9
-0@@ -97,6 +97,16 @@ struct phylink_mac_ops { bool tx_pause, bool rx_pause); }; +struct phylink_pcs_ops { +void (*pcs_get_state)(struct phylink_config *config, +struct phylink_link_state *state); +int (*pcs_config)(struct phylink_config *config,unsigned int mode, +const struct phylink_link_state *state); +void (*pcs_an_restart)(struct phylink_config *config); +void (*pcs_link_up)(struct phylink_config *config,unsigned int mode, +phy_interface_t interface,int speed,int duplex); }; +#if 0 /* For kernel-doc purposes only. */ /** * validate - Validate and update the link configuration @@ -273,6 +283,7 @@ void mac_link_up(struct
phylink_config*config, structphy_device*phy, struct phylink *phylink_create(structphylink_config*, structfwnode_handle*,include/linux/phylink.h +2
-1phy_interface_t iface, const struct phylink_mac_ops *ops); +void phylink_add_pcs (struct phylink *,const struct phylink_pcs_ops +*ops);void phylink_destroy (struct phylink *);int phylink_connect_phy (struct phylink *,struct phy_device *); --2.20.1
Russell King - ARM Linux admin
maintainerRe: [PATCH net-next 2/2] net: phylink: add separate pcs operations structure
Quoted 16 lines · Ioana Ciornei
Quoted 16 lines
Subject: [PATCH net-next 2/2] net: phylink: add separate pcs operations structure
Add a separate set of PCS operations, which MAC drivers can use to couple phylink with their associated MAC PCS layer. The PCS operations include:
-
pcs_get_state()- reads the link up/down, resolved speed, duplex and pause from the PCS.
-pcs_config()- configures the PCS for the specified mode, PHY interface type, and setting the advertisement.
-pcs_an_restart()- restarts 802.3 in-band negotiation with the link partner
-pcs_link_up()- informs the PCS that link has come up, and the parameters of the link. Link parameters are used to program the PCS for fixed speed and non-inband modes.
Quoted 6 lines
Quoted 2 lines
Signed-off-by Russell King <[email protected]>---
Are the old mac ops going to be removed at some point (after the drivers have been converted to the PCS operations)?
I am referring tomac_pcs_get_state()andmac_an_restart().
If (and only if) it's possible to convert mvneta and mvpp2 sanely. Splitting the PCS makes total sense, but we have to cope with hardware where there is no clear demarcation between the PCS and MAC. DSA also has issues, because it's written as a layered driver, which does not lend itself to easy gradual conversion of DSA drivers.
Quoted 2 lines
Also, what are the rules for what should and shouldn't be done in the new
pcs_config()method?
The pcs_config() method should set the PCS according to the interface mode (state->interface) and the advertisement (state->advertising). Nothing else should be used. I suppose I should pass those explicitly rather than the whole state structure to prevent any mis-use.
Quoted 1 line
Maybe a documentation entry for this would help.
Yep.
Quoted 225 lines
Quoted 224 lines
drivers/net/phy/phylink.c | 76 +++++++++++++++++++++++++++------------ include/linux/phylink.h | 11 ++++++ 2 files changed, 65 insertions(+), 22 deletions(-)drivers/net/phy/phylink.c index renamed from drivers/net/phy/phylink.c +0
-0
a34a3be92dba..abe2cc168f93100644drivers/net/phy/phylink.c +23
-3@@ -41,6 +41,7 @@ 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 device *dev; unsigned int old_link_state:1;@@ -425,11 +426,31 @@ static void phylink_mac_config_up(struct phylink *pl,phylink_mac_config (pl, state); } -static void phylink_mac_an_restart (struct phylink *pl) +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)) - pl->mac_ops->mac_an_restart (pl->config); +phy_interface_mode_is_8023z (pl->link_config.interface)) { +if (pl->pcs_ops) + pl->pcs_ops->pcs_an_restart (pl->config); +else + pl->mac_ops->mac_an_restart (pl->config); + } +} + +static void phylink_pcs_config (struct phylink *pl,bool force_restart, +const struct phylink_link_state *state) { +bool restart = force_restart; + +if (pl->pcs_ops && pl->pcs_ops->pcs_config (pl->config, + pl->cur_link_an_mode, + state)) + restart = true; + +phylink_mac_config (pl, state); + +if (restart) +phylink_mac_pcs_an_restart (pl); } static void phylink_mac_pcs_get_state(struct phylink *pl, @@ -445,7 +466,10@@ static void phylink_mac_pcs_get_state(struct phylink *pl,
drivers/net/phy/phylink.c +4
-1state->an_complete =0 ; state->link =1 ; - pl->mac_ops->mac_pcs_get_state (pl->config, state); +if (pl->pcs_ops) + pl->pcs_ops->pcs_get_state (pl->config, state); +else + pl->mac_ops->mac_pcs_get_state (pl->config, state); }/* The fixed state is... fixed except for the link state, @@ -463,7 +487,7 @@ static void phylink_get_fixed_state(struct phylink *pl,
drivers/net/phy/phylink.c +3
-2phylink_resolve_flow (state); } -static void phylink_mac_initial_config (struct phylink *pl) +static void phylink_mac_initial_config (struct phylink *pl,bool +force_restart) {struct phylink_link_state link_state;@@ -489,7 +513,7 @@ static void phylink_mac_initial_config(struct phylink *pl) link_state.link = false;phylink_apply_manual_flow (pl, &link_state); -phylink_mac_config (pl, &link_state); +phylink_pcs_config (pl, force_restart, &link_state); } static const char *phylink_pause_to_str(int pause) @@ -506,12 +530,18 @@static const char *phylink_pause_to_str(int pause)
drivers/net/phy/phylink.c +18
-5} } -static void phylink_mac_link_up (struct phylink *pl, -struct phylink_link_state link_state) +static void phylink_link_up (struct phylink *pl, +struct phylink_link_state link_state) {struct net_device *ndev = pl->netdev; pl->cur_interface = link_state.interface; + +if (pl->pcs_ops && pl->pcs_ops->pcs_link_up) + pl->pcs_ops->pcs_link_up (pl->config, pl->cur_link_an_mode, + pl->cur_interface, + link_state.speed, link_state.duplex); + pl->mac_ops->mac_link_up (pl->config, pl->phydev, pl->cur_link_an_mode, pl->cur_interface, link_state.speed, link_state.duplex, @@ -528,7 +558,7 @@ static void phylink_mac_link_up(struct phylink *pl, phylink_pause_to_str(link_state.pause)); } -static void phylink_mac_link_down (struct phylink *pl) +static void phylink_link_down (struct phylink *pl) {struct net_device *ndev = pl->netdev;@@ -597,9 +627,9 @@ static void phylink_resolve(struct work_struct *w)if (link_changed) { pl->old_link_state = link_state.link;if (!link_state.link) -phylink_mac_link_down (pl); +phylink_link_down (pl);else -phylink_mac_link_up (pl, link_state); +phylink_link_up (pl, link_state); }if (!link_state.link && pl->mac_link_dropped) { pl->mac_link_dropped = false;@@ -746,6 +776,12 @@ struct phylink *phylink_create(struct phylink_config *config, } EXPORT_SYMBOL_GPL(phylink_create); +void phylink_add_pcs (struct phylink *pl,const struct phylink_pcs_ops +*ops) { + pl->pcs_ops = ops; +} +EXPORT_SYMBOL_GPL (phylink_add_pcs); +/** * phylink_destroy() - cleanup and destroy the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() @@ - 1082,14 +1118,12 @@ void phylink_start(struct phylink *pl) drivers/net/phy/phylink.c +7
-11/* Apply the link configuration to the MAC when starting. This allows * a fixed-link to start with the correct parameters, and also * ensures that we set the appropriate advertisement for Serdes links. -*/ -phylink_mac_initial_config (pl); - -/* Restart autonegotiation if using 802.3z to ensure that the link +* +* Restart autonegotiation if using 802.3z to ensure that the link * parameters are properly negotiated. This is necessary for DSA * switches using 802.3z negotiation to ensure they see our modes. */ -phylink_mac_an_restart (pl); +phylink_mac_initial_config (pl, true);clear_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state);phylink_run_resolve (pl);@@ -1386,8 +1420,7 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,* advertisement; the only thing we have is the pause * modes which can only come from a PHY. */ -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex); }@@ -1415,7 +1448,7 @@ int phylink_ethtool_nway_reset(struct phylink *pl)if (pl->phydev) ret =phy_restart_aneg (pl->phydev); -phylink_mac_an_restart (pl); +phylink_mac_pcs_an_restart (pl);return ret; }@@ -1494,8 +1527,7 @@ int phylink_ethtool_set_pauseparam(struct phylink *pl, pause->tx_pause); }else if (!test_bit (PHYLINK_DISABLE_STOPPED , &pl->phylink_disable_state)) { -phylink_mac_config (pl, &pl->link_config); -phylink_mac_an_restart (pl); +phylink_pcs_config (pl, true, &pl->link_config); }mutex_unlock (&pl->state_mutex);@@ -1901,7 +1933,7 @@ static int phylink_sfp_config(struct phylink *pl, u8 mode, if (changed && !test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) -phylink_mac_initial_config (pl); +phylink_mac_initial_config (pl, false);return ret;}
include/linux/phylink.h index renamed from include/linux/phylink.h +0
-0
8fa6df3b881b..dc27dd341ebd100644include/linux/phylink.h +9
-0@@ -97,6 +97,16 @@ struct phylink_mac_ops { bool tx_pause, bool rx_pause); }; +struct phylink_pcs_ops { +void (*pcs_get_state)(struct phylink_config *config, +struct phylink_link_state *state); +int (*pcs_config)(struct phylink_config *config,unsigned int mode, +const struct phylink_link_state *state); +void (*pcs_an_restart)(struct phylink_config *config); +void (*pcs_link_up)(struct phylink_config *config,unsigned int mode, +phy_interface_t interface,int speed,int duplex); }; +#if 0 /* For kernel-doc purposes only. */ /** * validate - Validate and update the link configuration @@ -273,6 +283,7 @@ void mac_link_up(struct
phylink_config*config, structphy_device*phy, struct phylink *phylink_create(structphylink_config*, structfwnode_handle*,include/linux/phylink.h +2
-1phy_interface_t iface, const struct phylink_mac_ops *ops); +void phylink_add_pcs (struct phylink *,const struct phylink_pcs_ops +*ops);void phylink_destroy (struct phylink *);int phylink_connect_phy (struct phylink *,struct phy_device *); --2.20.1
Signature · 2 lines
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up
Andrew Lunn
maintainerRe: [PATCH net-next 2/2] net: phylink: add separate pcs operations structure
Quoted 4 lines
The
pcs_config()method should set the PCS according to the interface mode (state->interface) and the advertisement (state->advertising). Nothing else should be used. I suppose I should pass those explicitly rather than the whole state structure to prevent any mis-use.
Hi Russell
I think that has been a learning from phylink so far. Only pass what you are supposed to act on, nothing more.
Andrew
Russell King - ARM Linux admin
maintainerQuoted 4 lines · Russell King - ARM Linux admin
This series splits the
phylink_mac_opsstructure so that PCS can be supported separately with their own PCS operations, separating them from the MAC layer. This may need adaption later as more users come along.
I see I've messed up the subject line on this email, does it matter, or shall I resend again?
Signature · 2 lines
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up