51 	struct phylink_pcs *pcs;  member
660 	struct phylink_pcs *pcs;  in phylink_validate_mac_and_pcs()  local
663 	/* Get the PCS for this interface mode */  in phylink_validate_mac_and_pcs()
665 		pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);  in phylink_validate_mac_and_pcs()
666 		if (IS_ERR(pcs))  in phylink_validate_mac_and_pcs()
667 			return PTR_ERR(pcs);  in phylink_validate_mac_and_pcs()
669 		pcs = pl->pcs;  in phylink_validate_mac_and_pcs()
672 	if (pcs) {  in phylink_validate_mac_and_pcs()
673 		/* The PCS, if present, must be setup before phylink_create()  in phylink_validate_mac_and_pcs()
677 		if (!pcs->ops) {  in phylink_validate_mac_and_pcs()
678 			phylink_err(pl, "interface %s: uninitialised PCS\n",  in phylink_validate_mac_and_pcs()
684 		/* Validate the link parameters with the PCS */  in phylink_validate_mac_and_pcs()
685 		if (pcs->ops->pcs_validate) {  in phylink_validate_mac_and_pcs()
686 			ret = pcs->ops->pcs_validate(pcs, supported, state);  in phylink_validate_mac_and_pcs()
991 static void phylink_pcs_pre_config(struct phylink_pcs *pcs,  in phylink_pcs_pre_config()  argument
994 	if (pcs && pcs->ops->pcs_pre_config)  in phylink_pcs_pre_config()
995 		pcs->ops->pcs_pre_config(pcs, interface);  in phylink_pcs_pre_config()
998 static int phylink_pcs_post_config(struct phylink_pcs *pcs,  in phylink_pcs_post_config()  argument
1003 	if (pcs && pcs->ops->pcs_post_config)  in phylink_pcs_post_config()
1004 		err = pcs->ops->pcs_post_config(pcs, interface);  in phylink_pcs_post_config()
1009 static void phylink_pcs_disable(struct phylink_pcs *pcs)  in phylink_pcs_disable()  argument
1011 	if (pcs && pcs->ops->pcs_disable)  in phylink_pcs_disable()
1012 		pcs->ops->pcs_disable(pcs);  in phylink_pcs_disable()
1015 static int phylink_pcs_enable(struct phylink_pcs *pcs)  in phylink_pcs_enable()  argument
1019 	if (pcs && pcs->ops->pcs_enable)  in phylink_pcs_enable()
1020 		err = pcs->ops->pcs_enable(pcs);  in phylink_pcs_enable()
1025 static int phylink_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode,  in phylink_pcs_config()  argument
1029 	if (!pcs)  in phylink_pcs_config()
1032 	return pcs->ops->pcs_config(pcs, neg_mode, state->interface,  in phylink_pcs_config()
1036 static void phylink_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode,  in phylink_pcs_link_up()  argument
1040 	if (pcs && pcs->ops->pcs_link_up)  in phylink_pcs_link_up()
1041 		pcs->ops->pcs_link_up(pcs, neg_mode, interface, speed, duplex);  in phylink_pcs_link_up()
1052 	if (pl->pcs && pl->pcs->poll && pl->cfg_link_an_mode == MLO_AN_INBAND)  in phylink_pcs_poll_start()
1056 int phylink_pcs_pre_init(struct phylink *pl, struct phylink_pcs *pcs)  in phylink_pcs_pre_init()  argument
1060 	/* Signal to PCS driver that MAC requires RX clock for init */  in phylink_pcs_pre_init()
1062 		pcs->rxc_always_on = true;  in phylink_pcs_pre_init()
1064 	if (pcs->ops->pcs_pre_init)  in phylink_pcs_pre_init()
1065 		ret = pcs->ops->pcs_pre_init(pcs);  in phylink_pcs_pre_init()
1096 	if (pl->pcs && linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,  in phylink_pcs_an_restart()
1100 		pl->pcs->ops->pcs_an_restart(pl->pcs);  in phylink_pcs_an_restart()
1104  * phylink_pcs_neg_mode() - helper to determine PCS inband mode
1109  * Determines the negotiation mode to be used by the PCS, and returns
1119  * Note: this is for cases where the PCS itself is involved in negotiation
1173 	struct phylink_pcs *pcs = NULL;  in phylink_major_config()  local
1186 		pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);  in phylink_major_config()
1187 		if (IS_ERR(pcs)) {  in phylink_major_config()
1190 				    pcs);  in phylink_major_config()
1194 		pcs_changed = pcs && pl->pcs != pcs;  in phylink_major_config()
1209 	/* If we have a new PCS, switch to the new PCS after preparing the MAC  in phylink_major_config()
1213 		phylink_pcs_disable(pl->pcs);  in phylink_major_config()
1215 		if (pl->pcs)  in phylink_major_config()
1216 			pl->pcs->phylink = NULL;  in phylink_major_config()
1218 		pcs->phylink = pl;  in phylink_major_config()
1220 		pl->pcs = pcs;  in phylink_major_config()
1223 	if (pl->pcs)  in phylink_major_config()
1224 		phylink_pcs_pre_config(pl->pcs, state->interface);  in phylink_major_config()
1228 	if (pl->pcs)  in phylink_major_config()
1229 		phylink_pcs_post_config(pl->pcs, state->interface);  in phylink_major_config()
1232 		phylink_pcs_enable(pl->pcs);  in phylink_major_config()
1235 	if (pl->pcs && pl->pcs->neg_mode)  in phylink_major_config()
1238 	err = phylink_pcs_config(pl->pcs, neg_mode, state,  in phylink_major_config()
1268  * If we have a separate PCS, we only need to call its pcs_config() method,
1286 	/* Recompute the PCS neg mode */  in phylink_change_inband_advert()
1292 	if (pl->pcs->neg_mode)  in phylink_change_inband_advert()
1295 	/* Modern PCS-based method; update the advert at the PCS, and  in phylink_change_inband_advert()
1299 	ret = phylink_pcs_config(pl->pcs, neg_mode, &pl->link_config,  in phylink_change_inband_advert()
1330 	if (pl->pcs)  in phylink_mac_pcs_get_state()
1331 		pl->pcs->ops->pcs_get_state(pl->pcs, state);  in phylink_mac_pcs_get_state()
1431 	if (pl->pcs && pl->pcs->neg_mode)  in phylink_link_up()
1434 	phylink_pcs_link_up(pl->pcs, neg_mode, pl->cur_interface, speed,  in phylink_link_up()
1499 			/* The PCS may have a latching link-fail indicator.  in phylink_resolve()
1502 			 * PCS state to get the current status of the link.  in phylink_resolve()
2183  * phylink_pcs_change() - notify phylink of a change to PCS link state
2184  * @pcs: pointer to &struct phylink_pcs
2187  * The PCS driver should call this when the state of its link changes
2193 void phylink_pcs_change(struct phylink_pcs *pcs, bool up)  in phylink_pcs_change()  argument
2195 	struct phylink *pl = pcs->phylink;  in phylink_pcs_change()
2198 		phylink_link_changed(pl, up, "pcs");  in phylink_pcs_change()
2307 	phylink_pcs_disable(pl->pcs);  in phylink_stop()
2504 		/* The MAC is reporting the link results from its own PCS  in phylink_ethtool_ksettings_get()
3298 	/* Find the union of the supported interfaces by the PCS/MAC and  in phylink_sfp_config_optical()
3582  * phylink_decode_usxgmii_word() - decode the USXGMII word from a MAC PCS
3586  * Helper for MAC PCS supporting the USXGMII protocol and the auto-negotiation
3625  * phylink_decode_usgmii_word() - decode the USGMII word from a MAC PCS
3629  * Helper for MAC PCS supporting the USGMII protocol and the auto-negotiation
3660  * phylink_mii_c22_pcs_decode_state() - Decode MAC PCS state from MII registers
3665  * Helper for MAC PCS supporting the 802.3 clause 22 register set for
3710  * phylink_mii_c22_pcs_get_state() - read the MAC PCS state
3711  * @pcs: a pointer to a &struct mdio_device.
3714  * Helper for MAC PCS supporting the 802.3 clause 22 register set for
3717  * Read the MAC PCS state from the MII device configured in @config and
3723 void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,  in phylink_mii_c22_pcs_get_state()  argument
3728 	bmsr = mdiodev_read(pcs, MII_BMSR);  in phylink_mii_c22_pcs_get_state()
3729 	lpa = mdiodev_read(pcs, MII_LPA);  in phylink_mii_c22_pcs_get_state()
3740  * phylink_mii_c22_pcs_encode_advertisement() - configure the clause 37 PCS
3745  * Helper for MAC PCS supporting the 802.3 clause 22 register set for
3748  * Encode the clause 37 PCS advertisement as specified by @interface and
3780  * phylink_mii_c22_pcs_config() - configure clause 22 PCS
3781  * @pcs: a pointer to a &struct mdio_device.
3784  * @neg_mode: PCS negotiation mode
3786  * Configure a Clause 22 PCS PHY with the appropriate negotiation
3791 int phylink_mii_c22_pcs_config(struct mdio_device *pcs,  in phylink_mii_c22_pcs_config()  argument
3802 		ret = mdiobus_modify_changed(pcs->bus, pcs->addr,  in phylink_mii_c22_pcs_config()
3815 	ret = mdiodev_modify(pcs, MII_BMCR, BMCR_ANENABLE | BMCR_ISOLATE, bmcr);  in phylink_mii_c22_pcs_config()
3825  * @pcs: a pointer to a &struct mdio_device.
3827  * Helper for MAC PCS supporting the 802.3 clause 22 register set for
3834 void phylink_mii_c22_pcs_an_restart(struct mdio_device *pcs)  in phylink_mii_c22_pcs_an_restart()  argument
3836 	int val = mdiodev_read(pcs, MII_BMCR);  in phylink_mii_c22_pcs_an_restart()
3841 		mdiodev_write(pcs, MII_BMCR, val);  in phylink_mii_c22_pcs_an_restart()
3846 void phylink_mii_c45_pcs_get_state(struct mdio_device *pcs,  in phylink_mii_c45_pcs_get_state()  argument
3849 	struct mii_bus *bus = pcs->bus;  in phylink_mii_c45_pcs_get_state()
3850 	int addr = pcs->addr;  in phylink_mii_c45_pcs_get_state()