forked from luck/tmp_suning_uos_patched
47ec5303d7
Pull networking updates from David Miller:
1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.
2) Support UDP segmentation in code TSO code, from Eric Dumazet.
3) Allow flashing different flash images in cxgb4 driver, from Vishal
Kulkarni.
4) Add drop frames counter and flow status to tc flower offloading,
from Po Liu.
5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.
6) Various new indirect call avoidance, from Eric Dumazet and Brian
Vazquez.
7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
Yonghong Song.
8) Support querying and setting hardware address of a port function via
devlink, use this in mlx5, from Parav Pandit.
9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.
10) Switch qca8k driver over to phylink, from Jonathan McDowell.
11) In bpftool, show list of processes holding BPF FD references to
maps, programs, links, and btf objects. From Andrii Nakryiko.
12) Several conversions over to generic power management, from Vaibhav
Gupta.
13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
Yakunin.
14) Various https url conversions, from Alexander A. Klimov.
15) Timestamping and PHC support for mscc PHY driver, from Antoine
Tenart.
16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.
17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.
18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.
19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
drivers. From Luc Van Oostenryck.
20) XDP support for xen-netfront, from Denis Kirjanov.
21) Support receive buffer autotuning in MPTCP, from Florian Westphal.
22) Support EF100 chip in sfc driver, from Edward Cree.
23) Add XDP support to mvpp2 driver, from Matteo Croce.
24) Support MPTCP in sock_diag, from Paolo Abeni.
25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
infrastructure, from Jakub Kicinski.
26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.
27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.
28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.
29) Refactor a lot of networking socket option handling code in order to
avoid set_fs() calls, from Christoph Hellwig.
30) Add rfc4884 support to icmp code, from Willem de Bruijn.
31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.
32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.
33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.
34) Support TCP syncookies in MPTCP, from Flowian Westphal.
35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
Brivio.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
net: thunderx: initialize VF's mailbox mutex before first usage
usb: hso: remove bogus check for EINPROGRESS
usb: hso: no complaint about kmalloc failure
hso: fix bailout in error case of probe
ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
selftests/net: relax cpu affinity requirement in msg_zerocopy test
mptcp: be careful on subflow creation
selftests: rtnetlink: make kci_test_encap() return sub-test result
selftests: rtnetlink: correct the final return value for the test
net: dsa: sja1105: use detected device id instead of DT one on mismatch
tipc: set ub->ifindex for local ipv6 address
ipv6: add ipv6_dev_find()
net: openvswitch: silence suspicious RCU usage warning
Revert "vxlan: fix tos value before xmit"
ptp: only allow phase values lower than 1 period
farsync: switch from 'pci_' to 'dma_' API
wan: wanxl: switch from 'pci_' to 'dma_' API
hv_netvsc: do not use VF device if link is down
dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
net: macb: Properly handle phylink on at91sam9x
...
493 lines
19 KiB
C
493 lines
19 KiB
C
#ifndef NETDEV_PCS_H
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#define NETDEV_PCS_H
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#include <linux/phy.h>
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#include <linux/spinlock.h>
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#include <linux/workqueue.h>
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struct device_node;
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struct ethtool_cmd;
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struct fwnode_handle;
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struct net_device;
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enum {
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MLO_PAUSE_NONE,
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MLO_PAUSE_RX = BIT(0),
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MLO_PAUSE_TX = BIT(1),
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MLO_PAUSE_TXRX_MASK = MLO_PAUSE_TX | MLO_PAUSE_RX,
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MLO_PAUSE_AN = BIT(2),
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MLO_AN_PHY = 0, /* Conventional PHY */
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MLO_AN_FIXED, /* Fixed-link mode */
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MLO_AN_INBAND, /* In-band protocol */
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};
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static inline bool phylink_autoneg_inband(unsigned int mode)
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{
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return mode == MLO_AN_INBAND;
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}
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/**
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* struct phylink_link_state - link state structure
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* @advertising: ethtool bitmask containing advertised link modes
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* @lp_advertising: ethtool bitmask containing link partner advertised link
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* modes
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* @interface: link &typedef phy_interface_t mode
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* @speed: link speed, one of the SPEED_* constants.
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* @duplex: link duplex mode, one of DUPLEX_* constants.
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* @pause: link pause state, described by MLO_PAUSE_* constants.
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* @link: true if the link is up.
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* @an_enabled: true if autonegotiation is enabled/desired.
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* @an_complete: true if autonegotiation has completed.
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*/
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struct phylink_link_state {
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__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
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__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
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phy_interface_t interface;
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int speed;
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int duplex;
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int pause;
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unsigned int link:1;
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unsigned int an_enabled:1;
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unsigned int an_complete:1;
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};
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enum phylink_op_type {
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PHYLINK_NETDEV = 0,
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PHYLINK_DEV,
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};
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/**
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* struct phylink_config - PHYLINK configuration structure
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* @dev: a pointer to a struct device associated with the MAC
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* @type: operation type of PHYLINK instance
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* @pcs_poll: MAC PCS cannot provide link change interrupt
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* @poll_fixed_state: if true, starts link_poll,
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* if MAC link is at %MLO_AN_FIXED mode.
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* @get_fixed_state: callback to execute to determine the fixed link state,
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* if MAC link is at %MLO_AN_FIXED mode.
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*/
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struct phylink_config {
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struct device *dev;
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enum phylink_op_type type;
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bool pcs_poll;
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bool poll_fixed_state;
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void (*get_fixed_state)(struct phylink_config *config,
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struct phylink_link_state *state);
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};
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/**
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* struct phylink_mac_ops - MAC operations structure.
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* @validate: Validate and update the link configuration.
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* @mac_pcs_get_state: Read the current link state from the hardware.
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* @mac_prepare: prepare for a major reconfiguration of the interface.
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* @mac_config: configure the MAC for the selected mode and state.
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* @mac_finish: finish a major reconfiguration of the interface.
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* @mac_an_restart: restart 802.3z BaseX autonegotiation.
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* @mac_link_down: take the link down.
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* @mac_link_up: allow the link to come up.
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*
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* The individual methods are described more fully below.
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*/
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struct phylink_mac_ops {
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void (*validate)(struct phylink_config *config,
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unsigned long *supported,
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struct phylink_link_state *state);
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void (*mac_pcs_get_state)(struct phylink_config *config,
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struct phylink_link_state *state);
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int (*mac_prepare)(struct phylink_config *config, unsigned int mode,
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phy_interface_t iface);
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void (*mac_config)(struct phylink_config *config, unsigned int mode,
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const struct phylink_link_state *state);
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int (*mac_finish)(struct phylink_config *config, unsigned int mode,
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phy_interface_t iface);
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void (*mac_an_restart)(struct phylink_config *config);
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void (*mac_link_down)(struct phylink_config *config, unsigned int mode,
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phy_interface_t interface);
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void (*mac_link_up)(struct phylink_config *config,
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struct phy_device *phy, unsigned int mode,
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phy_interface_t interface, int speed, int duplex,
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bool tx_pause, bool rx_pause);
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};
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#if 0 /* For kernel-doc purposes only. */
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/**
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* validate - Validate and update the link configuration
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* @config: a pointer to a &struct phylink_config.
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* @supported: ethtool bitmask for supported link modes.
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* @state: a pointer to a &struct phylink_link_state.
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*
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* Clear bits in the @supported and @state->advertising masks that
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* are not supportable by the MAC.
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*
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* Note that the PHY may be able to transform from one connection
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* technology to another, so, eg, don't clear 1000BaseX just
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* because the MAC is unable to BaseX mode. This is more about
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* clearing unsupported speeds and duplex settings. The port modes
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* should not be cleared; phylink_set_port_modes() will help with this.
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*
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* If the @state->interface mode is %PHY_INTERFACE_MODE_1000BASEX
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* or %PHY_INTERFACE_MODE_2500BASEX, select the appropriate mode
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* based on @state->advertising and/or @state->speed and update
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* @state->interface accordingly. See phylink_helper_basex_speed().
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*
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* When @state->interface is %PHY_INTERFACE_MODE_NA, phylink expects the
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* MAC driver to return all supported link modes.
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*
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* If the @state->interface mode is not supported, then the @supported
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* mask must be cleared.
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*/
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void validate(struct phylink_config *config, unsigned long *supported,
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struct phylink_link_state *state);
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/**
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* mac_pcs_get_state() - Read the current inband link state from the hardware
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* @config: a pointer to a &struct phylink_config.
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* @state: a pointer to a &struct phylink_link_state.
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*
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* Read the current inband link state from the MAC PCS, reporting the
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* current speed in @state->speed, duplex mode in @state->duplex, pause
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* mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
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* negotiation completion state in @state->an_complete, and link up state
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* in @state->link. If possible, @state->lp_advertising should also be
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* populated.
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*/
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void mac_pcs_get_state(struct phylink_config *config,
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struct phylink_link_state *state);
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/**
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* mac_prepare() - prepare to change the PHY interface mode
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* @config: a pointer to a &struct phylink_config.
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* @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
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* @iface: interface mode to switch to
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*
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* phylink will call this method at the beginning of a full initialisation
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* of the link, which includes changing the interface mode or at initial
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* startup time. It may be called for the current mode. The MAC driver
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* should perform whatever actions are required, e.g. disabling the
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* Serdes PHY.
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*
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* This will be the first call in the sequence:
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* - mac_prepare()
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* - mac_config()
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* - pcs_config()
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* - possible pcs_an_restart()
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* - mac_finish()
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*
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* Returns zero on success, or negative errno on failure which will be
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* reported to the kernel log.
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*/
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int mac_prepare(struct phylink_config *config, unsigned int mode,
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phy_interface_t iface);
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/**
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* mac_config() - configure the MAC for the selected mode and state
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* @config: a pointer to a &struct phylink_config.
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* @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
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* @state: a pointer to a &struct phylink_link_state.
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*
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* Note - not all members of @state are valid. In particular,
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* @state->lp_advertising, @state->link, @state->an_complete are never
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* guaranteed to be correct, and so any mac_config() implementation must
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* never reference these fields.
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*
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* (this requires a rewrite - please refer to mac_link_up() for situations
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* where the PCS and MAC are not tightly integrated.)
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*
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* In all negotiation modes, as defined by @mode, @state->pause indicates the
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* pause settings which should be applied as follows. If %MLO_PAUSE_AN is not
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* set, %MLO_PAUSE_TX and %MLO_PAUSE_RX indicate whether the MAC should send
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* pause frames and/or act on received pause frames respectively. Otherwise,
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* the results of in-band negotiation/status from the MAC PCS should be used
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* to control the MAC pause mode settings.
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*
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* The action performed depends on the currently selected mode:
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*
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* %MLO_AN_FIXED, %MLO_AN_PHY:
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* Configure for non-inband negotiation mode, where the link settings
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* are completely communicated via mac_link_up(). The physical link
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* protocol from the MAC is specified by @state->interface.
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*
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* @state->advertising may be used, but is not required.
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*
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* Older drivers (prior to the mac_link_up() change) may use @state->speed,
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* @state->duplex and @state->pause to configure the MAC, but this is
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* deprecated; such drivers should be converted to use mac_link_up().
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*
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* Other members of @state must be ignored.
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*
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* Valid state members: interface, advertising.
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* Deprecated state members: speed, duplex, pause.
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*
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* %MLO_AN_INBAND:
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* place the link in an inband negotiation mode (such as 802.3z
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* 1000base-X or Cisco SGMII mode depending on the @state->interface
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* mode). In both cases, link state management (whether the link
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* is up or not) is performed by the MAC, and reported via the
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* mac_pcs_get_state() callback. Changes in link state must be made
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* by calling phylink_mac_change().
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*
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* Interface mode specific details are mentioned below.
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*
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* If in 802.3z mode, the link speed is fixed, dependent on the
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* @state->interface. Duplex and pause modes are negotiated via
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* the in-band configuration word. Advertised pause modes are set
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* according to the @state->an_enabled and @state->advertising
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* flags. Beware of MACs which only support full duplex at gigabit
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* and higher speeds.
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*
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* If in Cisco SGMII mode, the link speed and duplex mode are passed
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* in the serial bitstream 16-bit configuration word, and the MAC
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* should be configured to read these bits and acknowledge the
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* configuration word. Nothing is advertised by the MAC. The MAC is
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* responsible for reading the configuration word and configuring
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* itself accordingly.
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*
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* Valid state members: interface, an_enabled, pause, advertising.
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*
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* Implementations are expected to update the MAC to reflect the
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* requested settings - i.o.w., if nothing has changed between two
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* calls, no action is expected. If only flow control settings have
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* changed, flow control should be updated *without* taking the link
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* down. This "update" behaviour is critical to avoid bouncing the
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* link up status.
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*/
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void mac_config(struct phylink_config *config, unsigned int mode,
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const struct phylink_link_state *state);
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/**
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* mac_finish() - finish a to change the PHY interface mode
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* @config: a pointer to a &struct phylink_config.
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* @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
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* @iface: interface mode to switch to
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*
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* phylink will call this if it called mac_prepare() to allow the MAC to
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* complete any necessary steps after the MAC and PCS have been configured
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* for the @mode and @iface. E.g. a MAC driver may wish to re-enable the
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* Serdes PHY here if it was previously disabled by mac_prepare().
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*
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* Returns zero on success, or negative errno on failure which will be
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* reported to the kernel log.
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*/
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int mac_finish(struct phylink_config *config, unsigned int mode,
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phy_interface_t iface);
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/**
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* mac_an_restart() - restart 802.3z BaseX autonegotiation
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* @config: a pointer to a &struct phylink_config.
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*/
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void mac_an_restart(struct phylink_config *config);
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/**
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* mac_link_down() - take the link down
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* @config: a pointer to a &struct phylink_config.
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* @mode: link autonegotiation mode
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* @interface: link &typedef phy_interface_t mode
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*
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* If @mode is not an in-band negotiation mode (as defined by
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* phylink_autoneg_inband()), force the link down and disable any
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* Energy Efficient Ethernet MAC configuration. Interface type
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* selection must be done in mac_config().
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*/
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void mac_link_down(struct phylink_config *config, unsigned int mode,
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phy_interface_t interface);
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/**
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* mac_link_up() - allow the link to come up
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* @config: a pointer to a &struct phylink_config.
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* @phy: any attached phy
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* @mode: link autonegotiation mode
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* @interface: link &typedef phy_interface_t mode
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* @speed: link speed
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* @duplex: link duplex
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* @tx_pause: link transmit pause enablement status
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* @rx_pause: link receive pause enablement status
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*
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* Configure the MAC for an established link.
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*
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* @speed, @duplex, @tx_pause and @rx_pause indicate the finalised link
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* settings, and should be used to configure the MAC block appropriately
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* where these settings are not automatically conveyed from the PCS block,
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* or if in-band negotiation (as defined by phylink_autoneg_inband(@mode))
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* is disabled.
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*
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* Note that when 802.3z in-band negotiation is in use, it is possible
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* that the user wishes to override the pause settings, and this should
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* be allowed when considering the implementation of this method.
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*
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* If in-band negotiation mode is disabled, allow the link to come up. If
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* @phy is non-%NULL, configure Energy Efficient Ethernet by calling
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* phy_init_eee() and perform appropriate MAC configuration for EEE.
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* Interface type selection must be done in mac_config().
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*/
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void mac_link_up(struct phylink_config *config, struct phy_device *phy,
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unsigned int mode, phy_interface_t interface,
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int speed, int duplex, bool tx_pause, bool rx_pause);
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#endif
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struct phylink_pcs_ops;
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/**
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* struct phylink_pcs - PHYLINK PCS instance
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* @ops: a pointer to the &struct phylink_pcs_ops structure
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* @poll: poll the PCS for link changes
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*
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* This structure is designed to be embedded within the PCS private data,
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* and will be passed between phylink and the PCS.
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*/
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struct phylink_pcs {
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const struct phylink_pcs_ops *ops;
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bool poll;
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};
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/**
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* struct phylink_pcs_ops - MAC PCS operations structure.
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* @pcs_get_state: read the current MAC PCS link state from the hardware.
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* @pcs_config: configure the MAC PCS for the selected mode and state.
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* @pcs_an_restart: restart 802.3z BaseX autonegotiation.
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* @pcs_link_up: program the PCS for the resolved link configuration
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* (where necessary).
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*/
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struct phylink_pcs_ops {
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void (*pcs_get_state)(struct phylink_pcs *pcs,
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struct phylink_link_state *state);
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int (*pcs_config)(struct phylink_pcs *pcs, unsigned int mode,
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phy_interface_t interface,
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const unsigned long *advertising,
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bool permit_pause_to_mac);
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void (*pcs_an_restart)(struct phylink_pcs *pcs);
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void (*pcs_link_up)(struct phylink_pcs *pcs, unsigned int mode,
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phy_interface_t interface, int speed, int duplex);
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};
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#if 0 /* For kernel-doc purposes only. */
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/**
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* pcs_get_state() - Read the current inband link state from the hardware
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* @pcs: a pointer to a &struct phylink_pcs.
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* @state: a pointer to a &struct phylink_link_state.
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*
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* Read the current inband link state from the MAC PCS, reporting the
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* current speed in @state->speed, duplex mode in @state->duplex, pause
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* mode in @state->pause using the %MLO_PAUSE_RX and %MLO_PAUSE_TX bits,
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* negotiation completion state in @state->an_complete, and link up state
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* in @state->link. If possible, @state->lp_advertising should also be
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* populated.
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*
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* When present, this overrides mac_pcs_get_state() in &struct
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* phylink_mac_ops.
|
|
*/
|
|
void pcs_get_state(struct phylink_pcs *pcs,
|
|
struct phylink_link_state *state);
|
|
|
|
/**
|
|
* pcs_config() - Configure the PCS mode and advertisement
|
|
* @pcs: a pointer to a &struct phylink_pcs.
|
|
* @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
|
|
* @interface: interface mode to be used
|
|
* @advertising: adertisement ethtool link mode mask
|
|
* @permit_pause_to_mac: permit forwarding pause resolution to MAC
|
|
*
|
|
* Configure the PCS for the operating mode, the interface mode, and set
|
|
* the advertisement mask. @permit_pause_to_mac indicates whether the
|
|
* hardware may forward the pause mode resolution to the MAC.
|
|
*
|
|
* When operating in %MLO_AN_INBAND, inband should always be enabled,
|
|
* otherwise inband should be disabled.
|
|
*
|
|
* For SGMII, there is no advertisement from the MAC side, the PCS should
|
|
* be programmed to acknowledge the inband word from the PHY.
|
|
*
|
|
* For 1000BASE-X, the advertisement should be programmed into the PCS.
|
|
*
|
|
* For most 10GBASE-R, there is no advertisement.
|
|
*/
|
|
int pcs_config(struct phylink_pcs *pcs, unsigned int mode,
|
|
phy_interface_t interface, const unsigned long *advertising);
|
|
|
|
/**
|
|
* pcs_an_restart() - restart 802.3z BaseX autonegotiation
|
|
* @pcs: a pointer to a &struct phylink_pcs.
|
|
*
|
|
* When PCS ops are present, this overrides mac_an_restart() in &struct
|
|
* phylink_mac_ops.
|
|
*/
|
|
void pcs_an_restart(struct phylink_pcs *pcs);
|
|
|
|
/**
|
|
* pcs_link_up() - program the PCS for the resolved link configuration
|
|
* @pcs: a pointer to a &struct phylink_pcs.
|
|
* @mode: link autonegotiation mode
|
|
* @interface: link &typedef phy_interface_t mode
|
|
* @speed: link speed
|
|
* @duplex: link duplex
|
|
*
|
|
* This call will be made just before mac_link_up() to inform the PCS of
|
|
* the resolved link parameters. For example, a PCS operating in SGMII
|
|
* mode without in-band AN needs to be manually configured for the link
|
|
* and duplex setting. Otherwise, this should be a no-op.
|
|
*/
|
|
void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
|
|
phy_interface_t interface, int speed, int duplex);
|
|
#endif
|
|
|
|
struct phylink *phylink_create(struct phylink_config *, struct fwnode_handle *,
|
|
phy_interface_t iface,
|
|
const struct phylink_mac_ops *mac_ops);
|
|
void phylink_set_pcs(struct phylink *, struct phylink_pcs *pcs);
|
|
void phylink_destroy(struct phylink *);
|
|
|
|
int phylink_connect_phy(struct phylink *, struct phy_device *);
|
|
int phylink_of_phy_connect(struct phylink *, struct device_node *, u32 flags);
|
|
void phylink_disconnect_phy(struct phylink *);
|
|
|
|
void phylink_mac_change(struct phylink *, bool up);
|
|
|
|
void phylink_start(struct phylink *);
|
|
void phylink_stop(struct phylink *);
|
|
|
|
void phylink_ethtool_get_wol(struct phylink *, struct ethtool_wolinfo *);
|
|
int phylink_ethtool_set_wol(struct phylink *, struct ethtool_wolinfo *);
|
|
|
|
int phylink_ethtool_ksettings_get(struct phylink *,
|
|
struct ethtool_link_ksettings *);
|
|
int phylink_ethtool_ksettings_set(struct phylink *,
|
|
const struct ethtool_link_ksettings *);
|
|
int phylink_ethtool_nway_reset(struct phylink *);
|
|
void phylink_ethtool_get_pauseparam(struct phylink *,
|
|
struct ethtool_pauseparam *);
|
|
int phylink_ethtool_set_pauseparam(struct phylink *,
|
|
struct ethtool_pauseparam *);
|
|
int phylink_get_eee_err(struct phylink *);
|
|
int phylink_init_eee(struct phylink *, bool);
|
|
int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
|
|
int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
|
|
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
|
|
int phylink_speed_down(struct phylink *pl, bool sync);
|
|
int phylink_speed_up(struct phylink *pl);
|
|
|
|
#define phylink_zero(bm) \
|
|
bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
|
|
#define __phylink_do_bit(op, bm, mode) \
|
|
op(ETHTOOL_LINK_MODE_ ## mode ## _BIT, bm)
|
|
|
|
#define phylink_set(bm, mode) __phylink_do_bit(__set_bit, bm, mode)
|
|
#define phylink_clear(bm, mode) __phylink_do_bit(__clear_bit, bm, mode)
|
|
#define phylink_test(bm, mode) __phylink_do_bit(test_bit, bm, mode)
|
|
|
|
void phylink_set_port_modes(unsigned long *bits);
|
|
void phylink_helper_basex_speed(struct phylink_link_state *state);
|
|
|
|
void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
|
|
struct phylink_link_state *state);
|
|
int phylink_mii_c22_pcs_set_advertisement(struct mdio_device *pcs,
|
|
phy_interface_t interface,
|
|
const unsigned long *advertising);
|
|
int phylink_mii_c22_pcs_config(struct mdio_device *pcs, unsigned int mode,
|
|
phy_interface_t interface,
|
|
const unsigned long *advertising);
|
|
void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs);
|
|
|
|
void phylink_mii_c45_pcs_get_state(struct mdio_device *pcs,
|
|
struct phylink_link_state *state);
|
|
#endif
|