| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Russell King | 6669 | 95.82% | 21 | 56.76% |
| Florian Fainelli | 163 | 2.34% | 8 | 21.62% |
| Baruch Siach | 78 | 1.12% | 1 | 2.70% |
| Heiner Kallweit | 24 | 0.34% | 1 | 2.70% |
| Andrew Lunn | 8 | 0.11% | 1 | 2.70% |
| Antoine Tenart | 8 | 0.11% | 1 | 2.70% |
| Colin Ian King | 6 | 0.09% | 1 | 2.70% |
| Gustavo A. R. Silva | 2 | 0.03% | 1 | 2.70% |
| Wei Yongjun | 1 | 0.01% | 1 | 2.70% |
| Dan Carpenter | 1 | 0.01% | 1 | 2.70% |
| Total | 6960 | 37 |
/* * phylink models the MAC to optional PHY connection, supporting * technologies such as SFP cages where the PHY is hot-pluggable. * * Copyright (C) 2015 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/ethtool.h> #include <linux/export.h> #include <linux/gpio/consumer.h> #include <linux/netdevice.h> #include <linux/of.h> #include <linux/of_mdio.h> #include <linux/phy.h> #include <linux/phy_fixed.h> #include <linux/phylink.h> #include <linux/rtnetlink.h> #include <linux/spinlock.h> #include <linux/timer.h> #include <linux/workqueue.h> #include "sfp.h" #include "swphy.h" #define SUPPORTED_INTERFACES \ (SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_FIBRE | \ SUPPORTED_BNC | SUPPORTED_AUI | SUPPORTED_Backplane) #define ADVERTISED_INTERFACES \ (ADVERTISED_TP | ADVERTISED_MII | ADVERTISED_FIBRE | \ ADVERTISED_BNC | ADVERTISED_AUI | ADVERTISED_Backplane) enum { PHYLINK_DISABLE_STOPPED, PHYLINK_DISABLE_LINK, }; /** * struct phylink - internal data type for phylink */ struct phylink { /* private: */ struct net_device *netdev; const struct phylink_mac_ops *ops; unsigned long phylink_disable_state; /* bitmask of disables */ struct phy_device *phydev; phy_interface_t link_interface; /* PHY_INTERFACE_xxx */ u8 link_an_mode; /* MLO_AN_xxx */ u8 link_port; /* The current non-phy ethtool port */ __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); /* The link configuration settings */ struct phylink_link_state link_config; struct gpio_desc *link_gpio; struct timer_list link_poll; void (*get_fixed_state)(struct net_device *dev, struct phylink_link_state *s); struct mutex state_mutex; struct phylink_link_state phy_state; struct work_struct resolve; bool mac_link_dropped; struct sfp_bus *sfp_bus; }; /** * phylink_set_port_modes() - set the port type modes in the ethtool mask * @mask: ethtool link mode mask * * Sets all the port type modes in the ethtool mask. MAC drivers should * use this in their 'validate' callback. */ void phylink_set_port_modes(unsigned long *mask) { phylink_set(mask, TP); phylink_set(mask, AUI); phylink_set(mask, MII); phylink_set(mask, FIBRE); phylink_set(mask, BNC); phylink_set(mask, Backplane); } EXPORT_SYMBOL_GPL(phylink_set_port_modes); static int phylink_is_empty_linkmode(const unsigned long *linkmode) { __ETHTOOL_DECLARE_LINK_MODE_MASK(tmp) = { 0, }; phylink_set_port_modes(tmp); phylink_set(tmp, Autoneg); phylink_set(tmp, Pause); phylink_set(tmp, Asym_Pause); bitmap_andnot(tmp, linkmode, tmp, __ETHTOOL_LINK_MODE_MASK_NBITS); return linkmode_empty(tmp); } static const char *phylink_an_mode_str(unsigned int mode) { static const char *modestr[] = { [MLO_AN_PHY] = "phy", [MLO_AN_FIXED] = "fixed", [MLO_AN_INBAND] = "inband", }; return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown"; } static int phylink_validate(struct phylink *pl, unsigned long *supported, struct phylink_link_state *state) { pl->ops->validate(pl->netdev, supported, state); return phylink_is_empty_linkmode(supported) ? -EINVAL : 0; } static int phylink_parse_fixedlink(struct phylink *pl, struct fwnode_handle *fwnode) { struct fwnode_handle *fixed_node; const struct phy_setting *s; struct gpio_desc *desc; u32 speed; int ret; fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link"); if (fixed_node) { ret = fwnode_property_read_u32(fixed_node, "speed", &speed); pl->link_config.speed = speed; pl->link_config.duplex = DUPLEX_HALF; if (fwnode_property_read_bool(fixed_node, "full-duplex")) pl->link_config.duplex = DUPLEX_FULL; /* We treat the "pause" and "asym-pause" terminology as * defining the link partner's ability. */ if (fwnode_property_read_bool(fixed_node, "pause")) pl->link_config.pause |= MLO_PAUSE_SYM; if (fwnode_property_read_bool(fixed_node, "asym-pause")) pl->link_config.pause |= MLO_PAUSE_ASYM; if (ret == 0) { desc = fwnode_get_named_gpiod(fixed_node, "link-gpios", 0, GPIOD_IN, "?"); if (!IS_ERR(desc)) pl->link_gpio = desc; else if (desc == ERR_PTR(-EPROBE_DEFER)) ret = -EPROBE_DEFER; } fwnode_handle_put(fixed_node); if (ret) return ret; } else { u32 prop[5]; ret = fwnode_property_read_u32_array(fwnode, "fixed-link", NULL, 0); if (ret != ARRAY_SIZE(prop)) { netdev_err(pl->netdev, "broken fixed-link?\n"); return -EINVAL; } ret = fwnode_property_read_u32_array(fwnode, "fixed-link", prop, ARRAY_SIZE(prop)); if (!ret) { pl->link_config.duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; pl->link_config.speed = prop[2]; if (prop[3]) pl->link_config.pause |= MLO_PAUSE_SYM; if (prop[4]) pl->link_config.pause |= MLO_PAUSE_ASYM; } } if (pl->link_config.speed > SPEED_1000 && pl->link_config.duplex != DUPLEX_FULL) netdev_warn(pl->netdev, "fixed link specifies half duplex for %dMbps link?\n", pl->link_config.speed); bitmap_fill(pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS); linkmode_copy(pl->link_config.advertising, pl->supported); phylink_validate(pl, pl->supported, &pl->link_config); s = phy_lookup_setting(pl->link_config.speed, pl->link_config.duplex, pl->supported, true); linkmode_zero(pl->supported); phylink_set(pl->supported, MII); if (s) { __set_bit(s->bit, pl->supported); } else { netdev_warn(pl->netdev, "fixed link %s duplex %dMbps not recognised\n", pl->link_config.duplex == DUPLEX_FULL ? "full" : "half", pl->link_config.speed); } linkmode_and(pl->link_config.advertising, pl->link_config.advertising, pl->supported); pl->link_config.link = 1; pl->link_config.an_complete = 1; return 0; } static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) { struct fwnode_handle *dn; const char *managed; dn = fwnode_get_named_child_node(fwnode, "fixed-link"); if (dn || fwnode_property_present(fwnode, "fixed-link")) pl->link_an_mode = MLO_AN_FIXED; fwnode_handle_put(dn); if (fwnode_property_read_string(fwnode, "managed", &managed) == 0 && strcmp(managed, "in-band-status") == 0) { if (pl->link_an_mode == MLO_AN_FIXED) { netdev_err(pl->netdev, "can't use both fixed-link and in-band-status\n"); return -EINVAL; } linkmode_zero(pl->supported); phylink_set(pl->supported, MII); phylink_set(pl->supported, Autoneg); phylink_set(pl->supported, Asym_Pause); phylink_set(pl->supported, Pause); pl->link_config.an_enabled = true; pl->link_an_mode = MLO_AN_INBAND; switch (pl->link_config.interface) { case PHY_INTERFACE_MODE_SGMII: phylink_set(pl->supported, 10baseT_Half); phylink_set(pl->supported, 10baseT_Full); phylink_set(pl->supported, 100baseT_Half); phylink_set(pl->supported, 100baseT_Full); phylink_set(pl->supported, 1000baseT_Half); phylink_set(pl->supported, 1000baseT_Full); break; case PHY_INTERFACE_MODE_1000BASEX: phylink_set(pl->supported, 1000baseX_Full); break; case PHY_INTERFACE_MODE_2500BASEX: phylink_set(pl->supported, 2500baseX_Full); break; case PHY_INTERFACE_MODE_10GKR: phylink_set(pl->supported, 10baseT_Half); phylink_set(pl->supported, 10baseT_Full); phylink_set(pl->supported, 100baseT_Half); phylink_set(pl->supported, 100baseT_Full); phylink_set(pl->supported, 1000baseT_Half); phylink_set(pl->supported, 1000baseT_Full); phylink_set(pl->supported, 1000baseX_Full); phylink_set(pl->supported, 10000baseKR_Full); phylink_set(pl->supported, 10000baseCR_Full); phylink_set(pl->supported, 10000baseSR_Full); phylink_set(pl->supported, 10000baseLR_Full); phylink_set(pl->supported, 10000baseLRM_Full); phylink_set(pl->supported, 10000baseER_Full); break; default: netdev_err(pl->netdev, "incorrect link mode %s for in-band status\n", phy_modes(pl->link_config.interface)); return -EINVAL; } linkmode_copy(pl->link_config.advertising, pl->supported); if (phylink_validate(pl, pl->supported, &pl->link_config)) { netdev_err(pl->netdev, "failed to validate link configuration for in-band status\n"); return -EINVAL; } } return 0; } static void phylink_mac_config(struct phylink *pl, const struct phylink_link_state *state) { netdev_dbg(pl->netdev, "%s: mode=%s/%s/%s/%s adv=%*pb pause=%02x link=%u an=%u\n", __func__, phylink_an_mode_str(pl->link_an_mode), phy_modes(state->interface), phy_speed_to_str(state->speed), phy_duplex_to_str(state->duplex), __ETHTOOL_LINK_MODE_MASK_NBITS, state->advertising, state->pause, state->link, state->an_enabled); pl->ops->mac_config(pl->netdev, pl->link_an_mode, state); } 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->netdev); } static int phylink_get_mac_state(struct phylink *pl, struct phylink_link_state *state) { struct net_device *ndev = pl->netdev; linkmode_copy(state->advertising, pl->link_config.advertising); linkmode_zero(state->lp_advertising); state->interface = pl->link_config.interface; state->an_enabled = pl->link_config.an_enabled; state->speed = SPEED_UNKNOWN; state->duplex = DUPLEX_UNKNOWN; state->pause = MLO_PAUSE_NONE; state->an_complete = 0; state->link = 1; return pl->ops->mac_link_state(ndev, state); } /* The fixed state is... fixed except for the link state, * which may be determined by a GPIO or a callback. */ static void phylink_get_fixed_state(struct phylink *pl, struct phylink_link_state *state) { *state = pl->link_config; if (pl->get_fixed_state) pl->get_fixed_state(pl->netdev, state); else if (pl->link_gpio) state->link = !!gpiod_get_value_cansleep(pl->link_gpio); } /* Flow control is resolved according to our and the link partners * advertisements using the following drawn from the 802.3 specs: * Local device Link partner * Pause AsymDir Pause AsymDir Result * 1 X 1 X TX+RX * 0 1 1 1 RX * 1 1 0 1 TX */ static void phylink_resolve_flow(struct phylink *pl, struct phylink_link_state *state) { int new_pause = 0; if (pl->link_config.pause & MLO_PAUSE_AN) { int pause = 0; if (phylink_test(pl->link_config.advertising, Pause)) pause |= MLO_PAUSE_SYM; if (phylink_test(pl->link_config.advertising, Asym_Pause)) pause |= MLO_PAUSE_ASYM; pause &= state->pause; if (pause & MLO_PAUSE_SYM) new_pause = MLO_PAUSE_TX | MLO_PAUSE_RX; else if (pause & MLO_PAUSE_ASYM) new_pause = state->pause & MLO_PAUSE_SYM ? MLO_PAUSE_RX : MLO_PAUSE_TX; } else { new_pause = pl->link_config.pause & MLO_PAUSE_TXRX_MASK; } state->pause &= ~MLO_PAUSE_TXRX_MASK; state->pause |= new_pause; } static const char *phylink_pause_to_str(int pause) { switch (pause & MLO_PAUSE_TXRX_MASK) { case MLO_PAUSE_TX | MLO_PAUSE_RX: return "rx/tx"; case MLO_PAUSE_TX: return "tx"; case MLO_PAUSE_RX: return "rx"; default: return "off"; } } static void phylink_resolve(struct work_struct *w) { struct phylink *pl = container_of(w, struct phylink, resolve); struct phylink_link_state link_state; struct net_device *ndev = pl->netdev; mutex_lock(&pl->state_mutex); if (pl->phylink_disable_state) { pl->mac_link_dropped = false; link_state.link = false; } else if (pl->mac_link_dropped) { link_state.link = false; } else { switch (pl->link_an_mode) { case MLO_AN_PHY: link_state = pl->phy_state; phylink_resolve_flow(pl, &link_state); phylink_mac_config(pl, &link_state); break; case MLO_AN_FIXED: phylink_get_fixed_state(pl, &link_state); phylink_mac_config(pl, &link_state); break; case MLO_AN_INBAND: phylink_get_mac_state(pl, &link_state); if (pl->phydev) { bool changed = false; link_state.link = link_state.link && pl->phy_state.link; if (pl->phy_state.interface != link_state.interface) { link_state.interface = pl->phy_state.interface; changed = true; } /* Propagate the flow control from the PHY * to the MAC. Also propagate the interface * if changed. */ if (pl->phy_state.link || changed) { link_state.pause |= pl->phy_state.pause; phylink_resolve_flow(pl, &link_state); phylink_mac_config(pl, &link_state); } } break; } } if (link_state.link != netif_carrier_ok(ndev)) { if (!link_state.link) { netif_carrier_off(ndev); pl->ops->mac_link_down(ndev, pl->link_an_mode, pl->phy_state.interface); netdev_info(ndev, "Link is Down\n"); } else { pl->ops->mac_link_up(ndev, pl->link_an_mode, pl->phy_state.interface, pl->phydev); netif_carrier_on(ndev); netdev_info(ndev, "Link is Up - %s/%s - flow control %s\n", phy_speed_to_str(link_state.speed), phy_duplex_to_str(link_state.duplex), phylink_pause_to_str(link_state.pause)); } } if (!link_state.link && pl->mac_link_dropped) { pl->mac_link_dropped = false; queue_work(system_power_efficient_wq, &pl->resolve); } mutex_unlock(&pl->state_mutex); } static void phylink_run_resolve(struct phylink *pl) { if (!pl->phylink_disable_state) queue_work(system_power_efficient_wq, &pl->resolve); } static void phylink_run_resolve_and_disable(struct phylink *pl, int bit) { unsigned long state = pl->phylink_disable_state; set_bit(bit, &pl->phylink_disable_state); if (state == 0) { queue_work(system_power_efficient_wq, &pl->resolve); flush_work(&pl->resolve); } } static void phylink_fixed_poll(struct timer_list *t) { struct phylink *pl = container_of(t, struct phylink, link_poll); mod_timer(t, jiffies + HZ); phylink_run_resolve(pl); } static const struct sfp_upstream_ops sfp_phylink_ops; static int phylink_register_sfp(struct phylink *pl, struct fwnode_handle *fwnode) { struct fwnode_reference_args ref; int ret; if (!fwnode) return 0; ret = fwnode_property_get_reference_args(fwnode, "sfp", NULL, 0, 0, &ref); if (ret < 0) { if (ret == -ENOENT) return 0; netdev_err(pl->netdev, "unable to parse \"sfp\" node: %d\n", ret); return ret; } pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl->netdev, pl, &sfp_phylink_ops); if (!pl->sfp_bus) return -ENOMEM; return 0; } /** * phylink_create() - create a phylink instance * @ndev: a pointer to the &struct net_device * @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. * * Create a new phylink instance, and parse the link parameters found in @np. * This will parse in-band modes, fixed-link or SFP configuration. * * Returns a pointer to a &struct phylink, or an error-pointer value. Users * must use IS_ERR() to check for errors from this function. */ struct phylink *phylink_create(struct net_device *ndev, struct fwnode_handle *fwnode, phy_interface_t iface, const struct phylink_mac_ops *ops) { struct phylink *pl; int ret; pl = kzalloc(sizeof(*pl), GFP_KERNEL); if (!pl) return ERR_PTR(-ENOMEM); mutex_init(&pl->state_mutex); INIT_WORK(&pl->resolve, phylink_resolve); pl->netdev = ndev; pl->phy_state.interface = iface; pl->link_interface = iface; if (iface == PHY_INTERFACE_MODE_MOCA) pl->link_port = PORT_BNC; else pl->link_port = PORT_MII; pl->link_config.interface = iface; pl->link_config.pause = MLO_PAUSE_AN; pl->link_config.speed = SPEED_UNKNOWN; pl->link_config.duplex = DUPLEX_UNKNOWN; pl->link_config.an_enabled = true; pl->ops = ops; __set_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state); timer_setup(&pl->link_poll, phylink_fixed_poll, 0); bitmap_fill(pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS); linkmode_copy(pl->link_config.advertising, pl->supported); phylink_validate(pl, pl->supported, &pl->link_config); ret = phylink_parse_mode(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } if (pl->link_an_mode == MLO_AN_FIXED) { ret = phylink_parse_fixedlink(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } } ret = phylink_register_sfp(pl, fwnode); if (ret < 0) { kfree(pl); return ERR_PTR(ret); } return pl; } EXPORT_SYMBOL_GPL(phylink_create); /** * phylink_destroy() - cleanup and destroy the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() * * Destroy a phylink instance. Any PHY that has been attached must have been * cleaned up via phylink_disconnect_phy() prior to calling this function. */ void phylink_destroy(struct phylink *pl) { if (pl->sfp_bus) sfp_unregister_upstream(pl->sfp_bus); if (!IS_ERR_OR_NULL(pl->link_gpio)) gpiod_put(pl->link_gpio); cancel_work_sync(&pl->resolve); kfree(pl); } EXPORT_SYMBOL_GPL(phylink_destroy); static void phylink_phy_change(struct phy_device *phydev, bool up, bool do_carrier) { struct phylink *pl = phydev->phylink; mutex_lock(&pl->state_mutex); pl->phy_state.speed = phydev->speed; pl->phy_state.duplex = phydev->duplex; pl->phy_state.pause = MLO_PAUSE_NONE; if (phydev->pause) pl->phy_state.pause |= MLO_PAUSE_SYM; if (phydev->asym_pause) pl->phy_state.pause |= MLO_PAUSE_ASYM; pl->phy_state.interface = phydev->interface; pl->phy_state.link = up; mutex_unlock(&pl->state_mutex); phylink_run_resolve(pl); netdev_dbg(pl->netdev, "phy link %s %s/%s/%s\n", up ? "up" : "down", phy_modes(phydev->interface), phy_speed_to_str(phydev->speed), phy_duplex_to_str(phydev->duplex)); } static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy) { struct phylink_link_state config; __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); int ret; memset(&config, 0, sizeof(config)); linkmode_copy(supported, phy->supported); linkmode_copy(config.advertising, phy->advertising); config.interface = pl->link_config.interface; /* * This is the new way of dealing with flow control for PHYs, * as described by Timur Tabi in commit 529ed1275263 ("net: phy: * phy drivers should not set SUPPORTED_[Asym_]Pause") except * using our validate call to the MAC, we rely upon the MAC * clearing the bits from both supported and advertising fields. */ if (phylink_test(supported, Pause)) phylink_set(config.advertising, Pause); if (phylink_test(supported, Asym_Pause)) phylink_set(config.advertising, Asym_Pause); ret = phylink_validate(pl, supported, &config); if (ret) return ret; phy->phylink = pl; phy->phy_link_change = phylink_phy_change; netdev_info(pl->netdev, "PHY [%s] driver [%s]\n", dev_name(&phy->mdio.dev), phy->drv->name); mutex_lock(&phy->lock); mutex_lock(&pl->state_mutex); pl->phydev = phy; linkmode_copy(pl->supported, supported); linkmode_copy(pl->link_config.advertising, config.advertising); /* Restrict the phy advertisement according to the MAC support. */ linkmode_copy(phy->advertising, config.advertising); mutex_unlock(&pl->state_mutex); mutex_unlock(&phy->lock); netdev_dbg(pl->netdev, "phy: setting supported %*pb advertising %*pb\n", __ETHTOOL_LINK_MODE_MASK_NBITS, pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS, phy->advertising); phy_start_machine(phy); if (phy->irq > 0) phy_start_interrupts(phy); return 0; } static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy, phy_interface_t interface) { int ret; if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || (pl->link_an_mode == MLO_AN_INBAND && phy_interface_mode_is_8023z(interface)))) return -EINVAL; if (pl->phydev) return -EBUSY; ret = phy_attach_direct(pl->netdev, phy, 0, interface); if (ret) return ret; ret = phylink_bringup_phy(pl, phy); if (ret) phy_detach(phy); return ret; } /** * phylink_connect_phy() - connect a PHY to the phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() * @phy: a pointer to a &struct phy_device. * * Connect @phy to the phylink instance specified by @pl by calling * phy_attach_direct(). Configure the @phy according to the MAC driver's * capabilities, start the PHYLIB state machine and enable any interrupts * that the PHY supports. * * This updates the phylink's ethtool supported and advertising link mode * masks. * * Returns 0 on success or a negative errno. */ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy) { /* Use PHY device/driver interface */ if (pl->link_interface == PHY_INTERFACE_MODE_NA) { pl->link_interface = phy->interface; pl->link_config.interface = pl->link_interface; } return __phylink_connect_phy(pl, phy, pl->link_interface); } EXPORT_SYMBOL_GPL(phylink_connect_phy); /** * phylink_of_phy_connect() - connect the PHY specified in the DT mode. * @pl: a pointer to a &struct phylink returned from phylink_create() * @dn: a pointer to a &struct device_node. * @flags: PHY-specific flags to communicate to the PHY device driver * * Connect the phy specified in the device node @dn to the phylink instance * specified by @pl. Actions specified in phylink_connect_phy() will be * performed. * * Returns 0 on success or a negative errno. */ int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn, u32 flags) { struct device_node *phy_node; struct phy_device *phy_dev; int ret; /* Fixed links and 802.3z are handled without needing a PHY */ if (pl->link_an_mode == MLO_AN_FIXED || (pl->link_an_mode == MLO_AN_INBAND && phy_interface_mode_is_8023z(pl->link_interface))) return 0; phy_node = of_parse_phandle(dn, "phy-handle", 0); if (!phy_node) phy_node = of_parse_phandle(dn, "phy", 0); if (!phy_node) phy_node = of_parse_phandle(dn, "phy-device", 0); if (!phy_node) { if (pl->link_an_mode == MLO_AN_PHY) return -ENODEV; return 0; } phy_dev = of_phy_attach(pl->netdev, phy_node, flags, pl->link_interface); /* We're done with the phy_node handle */ of_node_put(phy_node); if (!phy_dev) return -ENODEV; ret = phylink_bringup_phy(pl, phy_dev); if (ret) phy_detach(phy_dev); return ret; } EXPORT_SYMBOL_GPL(phylink_of_phy_connect); /** * phylink_disconnect_phy() - disconnect any PHY attached to the phylink * instance. * @pl: a pointer to a &struct phylink returned from phylink_create() * * Disconnect any current PHY from the phylink instance described by @pl. */ void phylink_disconnect_phy(struct phylink *pl) { struct phy_device *phy; ASSERT_RTNL(); phy = pl->phydev; if (phy) { mutex_lock(&phy->lock); mutex_lock(&pl->state_mutex); pl->phydev = NULL; mutex_unlock(&pl->state_mutex); mutex_unlock(&phy->lock); flush_work(&pl->resolve); phy_disconnect(phy); } } EXPORT_SYMBOL_GPL(phylink_disconnect_phy); /** * phylink_fixed_state_cb() - allow setting a fixed link callback * @pl: a pointer to a &struct phylink returned from phylink_create() * @cb: callback to execute to determine the fixed link state. * * The MAC driver should call this driver when the state of its link * can be determined through e.g: an out of band MMIO register. */ int phylink_fixed_state_cb(struct phylink *pl, void (*cb)(struct net_device *dev, struct phylink_link_state *state)) { /* It does not make sense to let the link be overriden unless we use * MLO_AN_FIXED */ if (pl->link_an_mode != MLO_AN_FIXED) return -EINVAL; mutex_lock(&pl->state_mutex); pl->get_fixed_state = cb; mutex_unlock(&pl->state_mutex); return 0; } EXPORT_SYMBOL_GPL(phylink_fixed_state_cb); /** * phylink_mac_change() - notify phylink of a change in MAC state * @pl: a pointer to a &struct phylink returned from phylink_create() * @up: indicates whether the link is currently up. * * The MAC driver should call this driver when the state of its link * changes (eg, link failure, new negotiation results, etc.) */ void phylink_mac_change(struct phylink *pl, bool up) { if (!up) pl->mac_link_dropped = true; phylink_run_resolve(pl); netdev_dbg(pl->netdev, "mac link %s\n", up ? "up" : "down"); } EXPORT_SYMBOL_GPL(phylink_mac_change); /** * phylink_start() - start a phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() * * Start the phylink instance specified by @pl, configuring the MAC for the * desired link mode(s) and negotiation style. This should be called from the * network device driver's &struct net_device_ops ndo_open() method. */ void phylink_start(struct phylink *pl) { ASSERT_RTNL(); netdev_info(pl->netdev, "configuring for %s/%s link mode\n", phylink_an_mode_str(pl->link_an_mode), phy_modes(pl->link_config.interface)); /* Always set the carrier off */ netif_carrier_off(pl->netdev); /* 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_resolve_flow(pl, &pl->link_config); phylink_mac_config(pl, &pl->link_config); /* 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); clear_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state); phylink_run_resolve(pl); if (pl->link_an_mode == MLO_AN_FIXED && !IS_ERR(pl->link_gpio)) mod_timer(&pl->link_poll, jiffies + HZ); if (pl->sfp_bus) sfp_upstream_start(pl->sfp_bus); if (pl->phydev) phy_start(pl->phydev); } EXPORT_SYMBOL_GPL(phylink_start); /** * phylink_stop() - stop a phylink instance * @pl: a pointer to a &struct phylink returned from phylink_create() * * Stop the phylink instance specified by @pl. This should be called from the * network device driver's &struct net_device_ops ndo_stop() method. The * network device's carrier state should not be changed prior to calling this * function. */ void phylink_stop(struct phylink *pl) { ASSERT_RTNL(); if (pl->phydev) phy_stop(pl->phydev); if (pl->sfp_bus) sfp_upstream_stop(pl->sfp_bus); if (pl->link_an_mode == MLO_AN_FIXED && !IS_ERR(pl->link_gpio)) del_timer_sync(&pl->link_poll); phylink_run_resolve_and_disable(pl, PHYLINK_DISABLE_STOPPED); } EXPORT_SYMBOL_GPL(phylink_stop); /** * phylink_ethtool_get_wol() - get the wake on lan parameters for the PHY * @pl: a pointer to a &struct phylink returned from phylink_create() * @wol: a pointer to &struct ethtool_wolinfo to hold the read parameters * * Read the wake on lan parameters from the PHY attached to the phylink * instance specified by @pl. If no PHY is currently attached, report no * support for wake on lan. */ void phylink_ethtool_get_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { ASSERT_RTNL(); wol->supported = 0; wol->wolopts = 0; if (pl->phydev) phy_ethtool_get_wol(pl->phydev, wol); } EXPORT_SYMBOL_GPL(phylink_ethtool_get_wol); /** * phylink_ethtool_set_wol() - set wake on lan parameters * @pl: a pointer to a &struct phylink returned from phylink_create() * @wol: a pointer to &struct ethtool_wolinfo for the desired parameters * * Set the wake on lan parameters for the PHY attached to the phylink * instance specified by @pl. If no PHY is attached, returns %EOPNOTSUPP * error. * * Returns zero on success or negative errno code. */ int phylink_ethtool_set_wol(struct phylink *pl, struct ethtool_wolinfo *wol) { int ret = -EOPNOTSUPP; ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_wol(pl->phydev, wol); return ret; } EXPORT_SYMBOL_GPL(phylink_ethtool_set_wol); static void phylink_merge_link_mode(unsigned long *dst, const unsigned long *b) { __ETHTOOL_DECLARE_LINK_MODE_MASK(mask); linkmode_zero(mask); phylink_set_port_modes(mask); linkmode_and(dst, dst, mask); linkmode_or(dst, dst, b); } static void phylink_get_ksettings(const struct phylink_link_state *state, struct ethtool_link_ksettings *kset) { phylink_merge_link_mode(kset->link_modes.advertising, state->advertising); linkmode_copy(kset->link_modes.lp_advertising, state->lp_advertising); kset->base.speed = state->speed; kset->base.duplex = state->duplex; kset->base.autoneg = state->an_enabled ? AUTONEG_ENABLE : AUTONEG_DISABLE; } /** * phylink_ethtool_ksettings_get() - get the current link settings * @pl: a pointer to a &struct phylink returned from phylink_create() * @kset: a pointer to a &struct ethtool_link_ksettings to hold link settings * * Read the current link settings for the phylink instance specified by @pl. * This will be the link settings read from the MAC, PHY or fixed link * settings depending on the current negotiation mode. */ int phylink_ethtool_ksettings_get(struct phylink *pl, struct ethtool_link_ksettings *kset) { struct phylink_link_state link_state; ASSERT_RTNL(); if (pl->phydev) { phy_ethtool_ksettings_get(pl->phydev, kset); } else { kset->base.port = pl->link_port; } linkmode_copy(kset->link_modes.supported, pl->supported); switch (pl->link_an_mode) { case MLO_AN_FIXED: /* We are using fixed settings. Report these as the * current link settings - and note that these also * represent the supported speeds/duplex/pause modes. */ phylink_get_fixed_state(pl, &link_state); phylink_get_ksettings(&link_state, kset); break; case MLO_AN_INBAND: /* If there is a phy attached, then use the reported * settings from the phy with no modification. */ if (pl->phydev) break; phylink_get_mac_state(pl, &link_state); /* The MAC is reporting the link results from its own PCS * layer via in-band status. Report these as the current * link settings. */ phylink_get_ksettings(&link_state, kset); break; } return 0; } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get); /** * phylink_ethtool_ksettings_set() - set the link settings * @pl: a pointer to a &struct phylink returned from phylink_create() * @kset: a pointer to a &struct ethtool_link_ksettings for the desired modes */ int phylink_ethtool_ksettings_set(struct phylink *pl, const struct ethtool_link_ksettings *kset) { struct ethtool_link_ksettings our_kset; struct phylink_link_state config; int ret; ASSERT_RTNL(); if (kset->base.autoneg != AUTONEG_DISABLE && kset->base.autoneg != AUTONEG_ENABLE) return -EINVAL; config = pl->link_config; /* Mask out unsupported advertisements */ linkmode_and(config.advertising, kset->link_modes.advertising, pl->supported); /* FIXME: should we reject autoneg if phy/mac does not support it? */ if (kset->base.autoneg == AUTONEG_DISABLE) { const struct phy_setting *s; /* Autonegotiation disabled, select a suitable speed and * duplex. */ s = phy_lookup_setting(kset->base.speed, kset->base.duplex, pl->supported, false); if (!s) return -EINVAL; /* If we have a fixed link (as specified by firmware), refuse * to change link parameters. */ if (pl->link_an_mode == MLO_AN_FIXED && (s->speed != pl->link_config.speed || s->duplex != pl->link_config.duplex)) return -EINVAL; config.speed = s->speed; config.duplex = s->duplex; config.an_enabled = false; __clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising); } else { /* If we have a fixed link, refuse to enable autonegotiation */ if (pl->link_an_mode == MLO_AN_FIXED) return -EINVAL; config.speed = SPEED_UNKNOWN; config.duplex = DUPLEX_UNKNOWN; config.an_enabled = true; __set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising); } if (phylink_validate(pl, pl->supported, &config)) return -EINVAL; /* If autonegotiation is enabled, we must have an advertisement */ if (config.an_enabled && phylink_is_empty_linkmode(config.advertising)) return -EINVAL; our_kset = *kset; linkmode_copy(our_kset.link_modes.advertising, config.advertising); our_kset.base.speed = config.speed; our_kset.base.duplex = config.duplex; /* If we have a PHY, configure the phy */ if (pl->phydev) { ret = phy_ethtool_ksettings_set(pl->phydev, &our_kset); if (ret) return ret; } mutex_lock(&pl->state_mutex); /* Configure the MAC to match the new settings */ linkmode_copy(pl->link_config.advertising, our_kset.link_modes.advertising); pl->link_config.interface = config.interface; pl->link_config.speed = our_kset.base.speed; pl->link_config.duplex = our_kset.base.duplex; pl->link_config.an_enabled = our_kset.base.autoneg != AUTONEG_DISABLE; if (!test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) { phylink_mac_config(pl, &pl->link_config); phylink_mac_an_restart(pl); } mutex_unlock(&pl->state_mutex); return 0; } EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_set); /** * phylink_ethtool_nway_reset() - restart negotiation * @pl: a pointer to a &struct phylink returned from phylink_create() * * Restart negotiation for the phylink instance specified by @pl. This will * cause any attached phy to restart negotiation with the link partner, and * if the MAC is in a BaseX mode, the MAC will also be requested to restart * negotiation. * * Returns zero on success, or negative error code. */ int phylink_ethtool_nway_reset(struct phylink *pl) { int ret = 0; ASSERT_RTNL(); if (pl->phydev) ret = phy_restart_aneg(pl->phydev); phylink_mac_an_restart(pl); return ret; } EXPORT_SYMBOL_GPL(phylink_ethtool_nway_reset); /** * phylink_ethtool_get_pauseparam() - get the current pause parameters * @pl: a pointer to a &struct phylink returned from phylink_create() * @pause: a pointer to a &struct ethtool_pauseparam */ void phylink_ethtool_get_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { ASSERT_RTNL(); pause->autoneg = !!(pl->link_config.pause & MLO_PAUSE_AN); pause->rx_pause = !!(pl->link_config.pause & MLO_PAUSE_RX); pause->tx_pause = !!(pl->link_config.pause & MLO_PAUSE_TX); } EXPORT_SYMBOL_GPL(phylink_ethtool_get_pauseparam); /** * phylink_ethtool_set_pauseparam() - set the current pause parameters * @pl: a pointer to a &struct phylink returned from phylink_create() * @pause: a pointer to a &struct ethtool_pauseparam */ int phylink_ethtool_set_pauseparam(struct phylink *pl, struct ethtool_pauseparam *pause) { struct phylink_link_state *config = &pl->link_config; ASSERT_RTNL(); if (!phylink_test(pl->supported, Pause) && !phylink_test(pl->supported, Asym_Pause)) return -EOPNOTSUPP; if (!phylink_test(pl->supported, Asym_Pause) && !pause->autoneg && pause->rx_pause != pause->tx_pause) return -EINVAL; config->pause &= ~(MLO_PAUSE_AN | MLO_PAUSE_TXRX_MASK); if (pause->autoneg) config->pause |= MLO_PAUSE_AN; if (pause->rx_pause) config->pause |= MLO_PAUSE_RX; if (pause->tx_pause) config->pause |= MLO_PAUSE_TX; if (!test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) { switch (pl->link_an_mode) { case MLO_AN_PHY: /* Silently mark the carrier down, and then trigger a resolve */ netif_carrier_off(pl->netdev); phylink_run_resolve(pl); break; case MLO_AN_FIXED: /* Should we allow fixed links to change against the config? */ phylink_resolve_flow(pl, config); phylink_mac_config(pl, config); break; case MLO_AN_INBAND: phylink_mac_config(pl, config); phylink_mac_an_restart(pl); break; } } return 0; } EXPORT_SYMBOL_GPL(phylink_ethtool_set_pauseparam); /** * phylink_ethtool_get_eee_err() - read the energy efficient ethernet error * counter * @pl: a pointer to a &struct phylink returned from phylink_create(). * * Read the Energy Efficient Ethernet error counter from the PHY associated * with the phylink instance specified by @pl. * * Returns positive error counter value, or negative error code. */ int phylink_get_eee_err(struct phylink *pl) { int ret = 0; ASSERT_RTNL(); if (pl->phydev) ret = phy_get_eee_err(pl->phydev); return ret; } EXPORT_SYMBOL_GPL(phylink_get_eee_err); /** * phylink_ethtool_get_eee() - read the energy efficient ethernet parameters * @pl: a pointer to a &struct phylink returned from phylink_create() * @eee: a pointer to a &struct ethtool_eee for the read parameters */ int phylink_ethtool_get_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_get_eee(pl->phydev, eee); return ret; } EXPORT_SYMBOL_GPL(phylink_ethtool_get_eee); /** * phylink_ethtool_set_eee() - set the energy efficient ethernet parameters * @pl: a pointer to a &struct phylink returned from phylink_create() * @eee: a pointer to a &struct ethtool_eee for the desired parameters */ int phylink_ethtool_set_eee(struct phylink *pl, struct ethtool_eee *eee) { int ret = -EOPNOTSUPP; ASSERT_RTNL(); if (pl->phydev) ret = phy_ethtool_set_eee(pl->phydev, eee); return ret; } EXPORT_SYMBOL_GPL(phylink_ethtool_set_eee); /* This emulates MII registers for a fixed-mode phy operating as per the * passed in state. "aneg" defines if we report negotiation is possible. * * FIXME: should deal with negotiation state too. */ static int phylink_mii_emul_read(struct net_device *ndev, unsigned int reg, struct phylink_link_state *state, bool aneg) { struct fixed_phy_status fs; int val; fs.link = state->link; fs.speed = state->speed; fs.duplex = state->duplex; fs.pause = state->pause & MLO_PAUSE_SYM; fs.asym_pause = state->pause & MLO_PAUSE_ASYM; val = swphy_read_reg(reg, &fs); if (reg == MII_BMSR) { if (!state->an_complete) val &= ~BMSR_ANEGCOMPLETE; if (!aneg) val &= ~BMSR_ANEGCAPABLE; } return val; } static int phylink_phy_read(struct phylink *pl, unsigned int phy_id, unsigned int reg) { struct phy_device *phydev = pl->phydev; int prtad, devad; if (mdio_phy_id_is_c45(phy_id)) { prtad = mdio_phy_id_prtad(phy_id); devad = mdio_phy_id_devad(phy_id); devad = MII_ADDR_C45 | devad << 16 | reg; } else if (phydev->is_c45) { switch (reg) { case MII_BMCR: case MII_BMSR: case MII_PHYSID1: case MII_PHYSID2: devad = __ffs(phydev->c45_ids.devices_in_package); break; case MII_ADVERTISE: case MII_LPA: if (!(phydev->c45_ids.devices_in_package & MDIO_DEVS_AN)) return -EINVAL; devad = MDIO_MMD_AN; if (reg == MII_ADVERTISE) reg = MDIO_AN_ADVERTISE; else reg = MDIO_AN_LPA; break; default: return -EINVAL; } prtad = phy_id; devad = MII_ADDR_C45 | devad << 16 | reg; } else { prtad = phy_id; devad = reg; } return mdiobus_read(pl->phydev->mdio.bus, prtad, devad); } static int phylink_phy_write(struct phylink *pl, unsigned int phy_id, unsigned int reg, unsigned int val) { struct phy_device *phydev = pl->phydev; int prtad, devad; if (mdio_phy_id_is_c45(phy_id)) { prtad = mdio_phy_id_prtad(phy_id); devad = mdio_phy_id_devad(phy_id); devad = MII_ADDR_C45 | devad << 16 | reg; } else if (phydev->is_c45) { switch (reg) { case MII_BMCR: case MII_BMSR: case MII_PHYSID1: case MII_PHYSID2: devad = __ffs(phydev->c45_ids.devices_in_package); break; case MII_ADVERTISE: case MII_LPA: if (!(phydev->c45_ids.devices_in_package & MDIO_DEVS_AN)) return -EINVAL; devad = MDIO_MMD_AN; if (reg == MII_ADVERTISE) reg = MDIO_AN_ADVERTISE; else reg = MDIO_AN_LPA; break; default: return -EINVAL; } prtad = phy_id; devad = MII_ADDR_C45 | devad << 16 | reg; } else { prtad = phy_id; devad = reg; } return mdiobus_write(phydev->mdio.bus, prtad, devad, val); } static int phylink_mii_read(struct phylink *pl, unsigned int phy_id, unsigned int reg) { struct phylink_link_state state; int val = 0xffff; switch (pl->link_an_mode) { case MLO_AN_FIXED: if (phy_id == 0) { phylink_get_fixed_state(pl, &state); val = phylink_mii_emul_read(pl->netdev, reg, &state, true); } break; case MLO_AN_PHY: return -EOPNOTSUPP; case MLO_AN_INBAND: if (phy_id == 0) { val = phylink_get_mac_state(pl, &state); if (val < 0) return val; val = phylink_mii_emul_read(pl->netdev, reg, &state, true); } break; } return val & 0xffff; } static int phylink_mii_write(struct phylink *pl, unsigned int phy_id, unsigned int reg, unsigned int val) { switch (pl->link_an_mode) { case MLO_AN_FIXED: break; case MLO_AN_PHY: return -EOPNOTSUPP; case MLO_AN_INBAND: break; } return 0; } /** * phylink_mii_ioctl() - generic mii ioctl interface * @pl: a pointer to a &struct phylink returned from phylink_create() * @ifr: a pointer to a &struct ifreq for socket ioctls * @cmd: ioctl cmd to execute * * Perform the specified MII ioctl on the PHY attached to the phylink instance * specified by @pl. If no PHY is attached, emulate the presence of the PHY. * * Returns: zero on success or negative error code. * * %SIOCGMIIPHY: * read register from the current PHY. * %SIOCGMIIREG: * read register from the specified PHY. * %SIOCSMIIREG: * set a register on the specified PHY. */ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) { struct mii_ioctl_data *mii = if_mii(ifr); int ret; ASSERT_RTNL(); if (pl->phydev) { /* PHYs only exist for MLO_AN_PHY and SGMII */ switch (cmd) { case SIOCGMIIPHY: mii->phy_id = pl->phydev->mdio.addr; /* fall through */ case SIOCGMIIREG: ret = phylink_phy_read(pl, mii->phy_id, mii->reg_num); if (ret >= 0) { mii->val_out = ret; ret = 0; } break; case SIOCSMIIREG: ret = phylink_phy_write(pl, mii->phy_id, mii->reg_num, mii->val_in); break; default: ret = phy_mii_ioctl(pl->phydev, ifr, cmd); break; } } else { switch (cmd) { case SIOCGMIIPHY: mii->phy_id = 0; /* fall through */ case SIOCGMIIREG: ret = phylink_mii_read(pl, mii->phy_id, mii->reg_num); if (ret >= 0) { mii->val_out = ret; ret = 0; } break; case SIOCSMIIREG: ret = phylink_mii_write(pl, mii->phy_id, mii->reg_num, mii->val_in); break; default: ret = -EOPNOTSUPP; break; } } return ret; } EXPORT_SYMBOL_GPL(phylink_mii_ioctl); static int phylink_sfp_module_insert(void *upstream, const struct sfp_eeprom_id *id) { struct phylink *pl = upstream; __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, }; struct phylink_link_state config; phy_interface_t iface; int ret = 0; bool changed; u8 port; ASSERT_RTNL(); sfp_parse_support(pl->sfp_bus, id, support); port = sfp_parse_port(pl->sfp_bus, id, support); memset(&config, 0, sizeof(config)); linkmode_copy(config.advertising, support); config.interface = PHY_INTERFACE_MODE_NA; config.speed = SPEED_UNKNOWN; config.duplex = DUPLEX_UNKNOWN; config.pause = MLO_PAUSE_AN; config.an_enabled = pl->link_config.an_enabled; /* Ignore errors if we're expecting a PHY to attach later */ ret = phylink_validate(pl, support, &config); if (ret) { netdev_err(pl->netdev, "validation with support %*pb failed: %d\n", __ETHTOOL_LINK_MODE_MASK_NBITS, support, ret); return ret; } iface = sfp_select_interface(pl->sfp_bus, id, config.advertising); if (iface == PHY_INTERFACE_MODE_NA) { netdev_err(pl->netdev, "selection of interface failed, advertisement %*pb\n", __ETHTOOL_LINK_MODE_MASK_NBITS, config.advertising); return -EINVAL; } config.interface = iface; ret = phylink_validate(pl, support, &config); if (ret) { netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n", phylink_an_mode_str(MLO_AN_INBAND), phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support, ret); return ret; } netdev_dbg(pl->netdev, "requesting link mode %s/%s with support %*pb\n", phylink_an_mode_str(MLO_AN_INBAND), phy_modes(config.interface), __ETHTOOL_LINK_MODE_MASK_NBITS, support); if (phy_interface_mode_is_8023z(iface) && pl->phydev) return -EINVAL; changed = !bitmap_equal(pl->supported, support, __ETHTOOL_LINK_MODE_MASK_NBITS); if (changed) { linkmode_copy(pl->supported, support); linkmode_copy(pl->link_config.advertising, config.advertising); } if (pl->link_an_mode != MLO_AN_INBAND || pl->link_config.interface != config.interface) { pl->link_config.interface = config.interface; pl->link_an_mode = MLO_AN_INBAND; changed = true; netdev_info(pl->netdev, "switched to %s/%s link mode\n", phylink_an_mode_str(MLO_AN_INBAND), phy_modes(config.interface)); } pl->link_port = port; if (changed && !test_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state)) phylink_mac_config(pl, &pl->link_config); return ret; } static void phylink_sfp_link_down(void *upstream) { struct phylink *pl = upstream; ASSERT_RTNL(); phylink_run_resolve_and_disable(pl, PHYLINK_DISABLE_LINK); } static void phylink_sfp_link_up(void *upstream) { struct phylink *pl = upstream; ASSERT_RTNL(); clear_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); phylink_run_resolve(pl); } static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy) { struct phylink *pl = upstream; return __phylink_connect_phy(upstream, phy, pl->link_config.interface); } static void phylink_sfp_disconnect_phy(void *upstream) { phylink_disconnect_phy(upstream); } static const struct sfp_upstream_ops sfp_phylink_ops = { .module_insert = phylink_sfp_module_insert, .link_up = phylink_sfp_link_up, .link_down = phylink_sfp_link_down, .connect_phy = phylink_sfp_connect_phy, .disconnect_phy = phylink_sfp_disconnect_phy, }; /* Helpers for MAC drivers */ /** * phylink_helper_basex_speed() - 1000BaseX/2500BaseX helper * @state: a pointer to a &struct phylink_link_state * * Inspect the interface mode, advertising mask or forced speed and * decide whether to run at 2.5Gbit or 1Gbit appropriately, switching * the interface mode to suit. @state->interface is appropriately * updated, and the advertising mask has the "other" baseX_Full flag * cleared. */ void phylink_helper_basex_speed(struct phylink_link_state *state) { if (phy_interface_mode_is_8023z(state->interface)) { bool want_2500 = state->an_enabled ? phylink_test(state->advertising, 2500baseX_Full) : state->speed == SPEED_2500; if (want_2500) { phylink_clear(state->advertising, 1000baseX_Full); state->interface = PHY_INTERFACE_MODE_2500BASEX; } else { phylink_clear(state->advertising, 2500baseX_Full); state->interface = PHY_INTERFACE_MODE_1000BASEX; } } } EXPORT_SYMBOL_GPL(phylink_helper_basex_speed); MODULE_LICENSE("GPL");
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