1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
37  *  e1000e_check_reset_block_generic - Check if PHY reset is blocked
40  *  Read the PHY management control register and check whether a PHY reset
54  *  e1000e_get_phy_id - Retrieve the PHY ID and revision
62 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_get_phy_id()
67 	if (!phy->ops.read_reg)  in e1000e_get_phy_id()
75 		phy->id = (u32)(phy_id << 16);  in e1000e_get_phy_id()
81 		phy->id |= (u32)(phy_id & PHY_REVISION_MASK);  in e1000e_get_phy_id()
82 		phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);  in e1000e_get_phy_id()
84 		if (phy->id != 0 && phy->id != PHY_REVISION_MASK)  in e1000e_get_phy_id()
94  *  e1000e_phy_reset_dsp - Reset PHY DSP
112 	hw->phy.retry_enabled = false;  in e1000e_disable_phy_retry()
117 	hw->phy.retry_enabled = true;  in e1000e_enable_phy_retry()
121  *  e1000e_read_phy_reg_mdic - Read MDI control register
126  *  Reads the MDI control register in the PHY at offset and stores the
132 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_read_phy_reg_mdic()
137 		return -E1000_ERR_PARAM;  in e1000e_read_phy_reg_mdic()
140 	retry_max = phy->retry_enabled ? phy->retry_count : 0;  in e1000e_read_phy_reg_mdic()
142 	/* Set up Op-code, Phy Address, and register offset in the MDI  in e1000e_read_phy_reg_mdic()
143 	 * Control register.  The MAC will take care of interfacing with the  in e1000e_read_phy_reg_mdic()
150 			(phy->addr << E1000_MDIC_PHY_SHIFT) |  in e1000e_read_phy_reg_mdic()
175 			e_dbg("MDI Read offset error - requested %d, returned %d\n",  in e1000e_read_phy_reg_mdic()
183 		if (hw->mac.type == e1000_pch2lan)  in e1000e_read_phy_reg_mdic()
197 	return -E1000_ERR_PHY;  in e1000e_read_phy_reg_mdic()
201  *  e1000e_write_phy_reg_mdic - Write MDI control register
206  *  Writes data to MDI control register in the PHY at offset.
211 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_write_phy_reg_mdic()
216 		return -E1000_ERR_PARAM;  in e1000e_write_phy_reg_mdic()
219 	retry_max = phy->retry_enabled ? phy->retry_count : 0;  in e1000e_write_phy_reg_mdic()
221 	/* Set up Op-code, Phy Address, and register offset in the MDI  in e1000e_write_phy_reg_mdic()
222 	 * Control register.  The MAC will take care of interfacing with the  in e1000e_write_phy_reg_mdic()
230 			(phy->addr << E1000_MDIC_PHY_SHIFT) |  in e1000e_write_phy_reg_mdic()
255 			e_dbg("MDI Write offset error - requested %d, returned %d\n",  in e1000e_write_phy_reg_mdic()
263 		if (hw->mac.type == e1000_pch2lan)  in e1000e_write_phy_reg_mdic()
275 	return -E1000_ERR_PHY;  in e1000e_write_phy_reg_mdic()
279  *  e1000e_read_phy_reg_m88 - Read m88 PHY register
292 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_read_phy_reg_m88()
299 	hw->phy.ops.release(hw);  in e1000e_read_phy_reg_m88()
305  *  e1000e_write_phy_reg_m88 - Write m88 PHY register
317 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_write_phy_reg_m88()
324 	hw->phy.ops.release(hw);  in e1000e_write_phy_reg_m88()
330  *  e1000_set_page_igp - Set page as on IGP-like PHY(s)
342 	hw->phy.addr = 1;  in e1000_set_page_igp()
348  *  __e1000e_read_phy_reg_igp - Read igp PHY register
364 		if (!hw->phy.ops.acquire)  in __e1000e_read_phy_reg_igp()
367 		ret_val = hw->phy.ops.acquire(hw);  in __e1000e_read_phy_reg_igp()
381 		hw->phy.ops.release(hw);  in __e1000e_read_phy_reg_igp()
387  *  e1000e_read_phy_reg_igp - Read igp PHY register
402  *  e1000e_read_phy_reg_igp_locked - Read igp PHY register
416  *  __e1000e_write_phy_reg_igp - Write igp PHY register
431 		if (!hw->phy.ops.acquire)  in __e1000e_write_phy_reg_igp()
434 		ret_val = hw->phy.ops.acquire(hw);  in __e1000e_write_phy_reg_igp()
447 		hw->phy.ops.release(hw);  in __e1000e_write_phy_reg_igp()
453  *  e1000e_write_phy_reg_igp - Write igp PHY register
467  *  e1000e_write_phy_reg_igp_locked - Write igp PHY register
481  *  __e1000_read_kmrn_reg - Read kumeran register
499 		if (!hw->phy.ops.acquire)  in __e1000_read_kmrn_reg()
502 		ret_val = hw->phy.ops.acquire(hw);  in __e1000_read_kmrn_reg()
518 		hw->phy.ops.release(hw);  in __e1000_read_kmrn_reg()
524  *  e1000e_read_kmrn_reg -  Read kumeran register
539  *  e1000e_read_kmrn_reg_locked -  Read kumeran register
554  *  __e1000_write_kmrn_reg - Write kumeran register
572 		if (!hw->phy.ops.acquire)  in __e1000_write_kmrn_reg()
575 		ret_val = hw->phy.ops.acquire(hw);  in __e1000_write_kmrn_reg()
587 		hw->phy.ops.release(hw);  in __e1000_write_kmrn_reg()
593  *  e1000e_write_kmrn_reg -  Write kumeran register
607  *  e1000e_write_kmrn_reg_locked -  Write kumeran register
621  *  e1000_set_master_slave_mode - Setup PHY for Master/slave mode
637 	hw->phy.original_ms_type = (phy_data & CTL1000_ENABLE_MASTER) ?  in e1000_set_master_slave_mode()
641 	switch (hw->phy.ms_type) {  in e1000_set_master_slave_mode()
660  *  e1000_copper_link_setup_82577 - Setup 82577 PHY for copper link
663  *  Sets up Carrier-sense on Transmit and downshift values.
670 	/* Enable CRS on Tx. This must be set for half-duplex operation. */  in e1000_copper_link_setup_82577()
690 	 *   0 - Auto (default)  in e1000_copper_link_setup_82577()
691 	 *   1 - MDI mode  in e1000_copper_link_setup_82577()
692 	 *   2 - MDI-X mode  in e1000_copper_link_setup_82577()
694 	switch (hw->phy.mdix) {  in e1000_copper_link_setup_82577()
713  *  e1000e_copper_link_setup_m88 - Setup m88 PHY's for copper link
716  *  Sets up MDI/MDI-X and polarity for m88 PHY's.  If necessary, transmit clock
721 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_copper_link_setup_m88()
725 	/* Enable CRS on Tx. This must be set for half-duplex operation. */  in e1000e_copper_link_setup_m88()
731 	if (phy->type != e1000_phy_bm)  in e1000e_copper_link_setup_m88()
735 	 *   MDI/MDI-X = 0 (default)  in e1000e_copper_link_setup_m88()
736 	 *   0 - Auto for all speeds  in e1000e_copper_link_setup_m88()
737 	 *   1 - MDI mode  in e1000e_copper_link_setup_m88()
738 	 *   2 - MDI-X mode  in e1000e_copper_link_setup_m88()
739 	 *   3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)  in e1000e_copper_link_setup_m88()
743 	switch (phy->mdix) {  in e1000e_copper_link_setup_m88()
762 	 *   0 - Disabled  in e1000e_copper_link_setup_m88()
763 	 *   1 - Enabled  in e1000e_copper_link_setup_m88()
766 	if (phy->disable_polarity_correction)  in e1000e_copper_link_setup_m88()
770 	if (phy->type == e1000_phy_bm) {  in e1000e_copper_link_setup_m88()
772 		if (phy->id == BME1000_E_PHY_ID_R2) {  in e1000e_copper_link_setup_m88()
779 			ret_val = phy->ops.commit(hw);  in e1000e_copper_link_setup_m88()
793 	if ((phy->type == e1000_phy_m88) &&  in e1000e_copper_link_setup_m88()
794 	    (phy->revision < E1000_REVISION_4) &&  in e1000e_copper_link_setup_m88()
795 	    (phy->id != BME1000_E_PHY_ID_R2)) {  in e1000e_copper_link_setup_m88()
796 		/* Force TX_CLK in the Extended PHY Specific Control Register  in e1000e_copper_link_setup_m88()
805 		if ((phy->revision == 2) && (phy->id == M88E1111_I_PHY_ID)) {  in e1000e_copper_link_setup_m88()
806 			/* 82573L PHY - set the downshift counter to 5x. */  in e1000e_copper_link_setup_m88()
821 	if ((phy->type == e1000_phy_bm) && (phy->id == BME1000_E_PHY_ID_R2)) {  in e1000e_copper_link_setup_m88()
834 	if (phy->ops.commit) {  in e1000e_copper_link_setup_m88()
835 		ret_val = phy->ops.commit(hw);  in e1000e_copper_link_setup_m88()
842 	if (phy->type == e1000_phy_82578) {  in e1000e_copper_link_setup_m88()
847 		/* 82578 PHY - set the downshift count to 1x. */  in e1000e_copper_link_setup_m88()
859  *  e1000e_copper_link_setup_igp - Setup igp PHY's for copper link
862  *  Sets up LPLU, MDI/MDI-X, polarity, Smartspeed and Master/Slave config for
867 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_copper_link_setup_igp()
883 	if (hw->phy.ops.set_d0_lplu_state) {  in e1000e_copper_link_setup_igp()
884 		ret_val = hw->phy.ops.set_d0_lplu_state(hw, false);  in e1000e_copper_link_setup_igp()
890 	/* Configure mdi-mdix settings */  in e1000e_copper_link_setup_igp()
897 	switch (phy->mdix) {  in e1000e_copper_link_setup_igp()
913 	/* set auto-master slave resolution settings */  in e1000e_copper_link_setup_igp()
914 	if (hw->mac.autoneg) {  in e1000e_copper_link_setup_igp()
916 		 * should disable SmartSpeed and enable Auto MasterSlave  in e1000e_copper_link_setup_igp()
919 		if (phy->autoneg_advertised == ADVERTISE_1000_FULL) {  in e1000e_copper_link_setup_igp()
932 			/* Set auto Master/Slave resolution process */  in e1000e_copper_link_setup_igp()
950  *  e1000_phy_setup_autoneg - Configure PHY for auto-negotiation
953  *  Reads the MII auto-neg advertisement register and/or the 1000T control
954  *  register and if the PHY is already setup for auto-negotiation, then
955  *  return successful.  Otherwise, setup advertisement and flow control to
956  *  the appropriate values for the wanted auto-negotiation.
960 	struct e1000_phy_info *phy = &hw->phy;  in e1000_phy_setup_autoneg()
965 	phy->autoneg_advertised &= phy->autoneg_mask;  in e1000_phy_setup_autoneg()
967 	/* Read the MII Auto-Neg Advertisement Register (Address 4). */  in e1000_phy_setup_autoneg()
972 	if (phy->autoneg_mask & ADVERTISE_1000_FULL) {  in e1000_phy_setup_autoneg()
973 		/* Read the MII 1000Base-T Control Register (Address 9). */  in e1000_phy_setup_autoneg()
986 	/* First we clear all the 10/100 mb speed bits in the Auto-Neg  in e1000_phy_setup_autoneg()
988 	 * the  1000Base-T Control Register (Address 9).  in e1000_phy_setup_autoneg()
995 	e_dbg("autoneg_advertised %x\n", phy->autoneg_advertised);  in e1000_phy_setup_autoneg()
998 	if (phy->autoneg_advertised & ADVERTISE_10_HALF) {  in e1000_phy_setup_autoneg()
1004 	if (phy->autoneg_advertised & ADVERTISE_10_FULL) {  in e1000_phy_setup_autoneg()
1010 	if (phy->autoneg_advertised & ADVERTISE_100_HALF) {  in e1000_phy_setup_autoneg()
1016 	if (phy->autoneg_advertised & ADVERTISE_100_FULL) {  in e1000_phy_setup_autoneg()
1022 	if (phy->autoneg_advertised & ADVERTISE_1000_HALF)  in e1000_phy_setup_autoneg()
1026 	if (phy->autoneg_advertised & ADVERTISE_1000_FULL) {  in e1000_phy_setup_autoneg()
1031 	/* Check for a software override of the flow control settings, and  in e1000_phy_setup_autoneg()
1033 	 * auto-negotiation is enabled, then software will have to set the  in e1000_phy_setup_autoneg()
1034 	 * "PAUSE" bits to the correct value in the Auto-Negotiation  in e1000_phy_setup_autoneg()
1035 	 * Advertisement Register (MII_ADVERTISE) and re-start auto-  in e1000_phy_setup_autoneg()
1039 	 *      0:  Flow control is completely disabled  in e1000_phy_setup_autoneg()
1040 	 *      1:  Rx flow control is enabled (we can receive pause frames  in e1000_phy_setup_autoneg()
1042 	 *      2:  Tx flow control is enabled (we can send pause frames  in e1000_phy_setup_autoneg()
1044 	 *      3:  Both Rx and Tx flow control (symmetric) are enabled.  in e1000_phy_setup_autoneg()
1045 	 *  other:  No software override.  The flow control configuration  in e1000_phy_setup_autoneg()
1048 	switch (hw->fc.current_mode) {  in e1000_phy_setup_autoneg()
1050 		/* Flow control (Rx & Tx) is completely disabled by a  in e1000_phy_setup_autoneg()
1051 		 * software over-ride.  in e1000_phy_setup_autoneg()
1055 		phy->autoneg_advertised &=  in e1000_phy_setup_autoneg()
1059 		/* Rx Flow control is enabled, and Tx Flow control is  in e1000_phy_setup_autoneg()
1060 		 * disabled, by a software over-ride.  in e1000_phy_setup_autoneg()
1070 		phy->autoneg_advertised |=  in e1000_phy_setup_autoneg()
1074 		/* Tx Flow control is enabled, and Rx Flow control is  in e1000_phy_setup_autoneg()
1075 		 * disabled, by a software over-ride.  in e1000_phy_setup_autoneg()
1079 		phy->autoneg_advertised |= ADVERTISED_Asym_Pause;  in e1000_phy_setup_autoneg()
1080 		phy->autoneg_advertised &= ~ADVERTISED_Pause;  in e1000_phy_setup_autoneg()
1083 		/* Flow control (both Rx and Tx) is enabled by a software  in e1000_phy_setup_autoneg()
1084 		 * over-ride.  in e1000_phy_setup_autoneg()
1088 		phy->autoneg_advertised |=  in e1000_phy_setup_autoneg()
1092 		e_dbg("Flow control param set incorrectly\n");  in e1000_phy_setup_autoneg()
1093 		return -E1000_ERR_CONFIG;  in e1000_phy_setup_autoneg()
1100 	e_dbg("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);  in e1000_phy_setup_autoneg()
1102 	if (phy->autoneg_mask & ADVERTISE_1000_FULL)  in e1000_phy_setup_autoneg()
1109  *  e1000_copper_link_autoneg - Setup/Enable autoneg for copper link
1119 	struct e1000_phy_info *phy = &hw->phy;  in e1000_copper_link_autoneg()
1126 	phy->autoneg_advertised &= phy->autoneg_mask;  in e1000_copper_link_autoneg()
1131 	if (!phy->autoneg_advertised)  in e1000_copper_link_autoneg()
1132 		phy->autoneg_advertised = phy->autoneg_mask;  in e1000_copper_link_autoneg()
1134 	e_dbg("Reconfiguring auto-neg advertisement params\n");  in e1000_copper_link_autoneg()
1137 		e_dbg("Error Setting up Auto-Negotiation\n");  in e1000_copper_link_autoneg()
1140 	e_dbg("Restarting Auto-Neg\n");  in e1000_copper_link_autoneg()
1142 	/* Restart auto-negotiation by setting the Auto Neg Enable bit and  in e1000_copper_link_autoneg()
1143 	 * the Auto Neg Restart bit in the PHY control register.  in e1000_copper_link_autoneg()
1154 	/* Does the user want to wait for Auto-Neg to complete here, or  in e1000_copper_link_autoneg()
1157 	if (phy->autoneg_wait_to_complete) {  in e1000_copper_link_autoneg()
1165 	hw->mac.get_link_status = true;  in e1000_copper_link_autoneg()
1171  *  e1000e_setup_copper_link - Configure copper link settings
1174  *  Calls the appropriate function to configure the link for auto-neg or forced
1176  *  to configure collision distance and flow control are called.  If link is
1177  *  not established, we return -E1000_ERR_PHY (-2).
1184 	if (hw->mac.autoneg) {  in e1000e_setup_copper_link()
1185 		/* Setup autoneg and flow control advertisement and perform  in e1000e_setup_copper_link()
1196 		ret_val = hw->phy.ops.force_speed_duplex(hw);  in e1000e_setup_copper_link()
1213 		hw->mac.ops.config_collision_dist(hw);  in e1000e_setup_copper_link()
1223  *  e1000e_phy_force_speed_duplex_igp - Force speed/duplex for igp PHY
1227  *  auto-crossover to force MDI manually.  Waits for link and returns
1228  *  successful if link up is successful, else -E1000_ERR_PHY (-2).
1232 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_phy_force_speed_duplex_igp()
1247 	/* Clear Auto-Crossover to force MDI manually.  IGP requires MDI  in e1000e_phy_force_speed_duplex_igp()
1265 	if (phy->autoneg_wait_to_complete) {  in e1000e_phy_force_speed_duplex_igp()
1285  *  e1000e_phy_force_speed_duplex_m88 - Force speed/duplex for m88 PHY
1289  *  auto-crossover to force MDI manually.  Resets the PHY to commit the
1296 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_phy_force_speed_duplex_m88()
1301 	/* Clear Auto-Crossover to force MDI manually.  M88E1000 requires MDI  in e1000e_phy_force_speed_duplex_m88()
1326 	if (hw->phy.ops.commit) {  in e1000e_phy_force_speed_duplex_m88()
1327 		ret_val = hw->phy.ops.commit(hw);  in e1000e_phy_force_speed_duplex_m88()
1332 	if (phy->autoneg_wait_to_complete) {  in e1000e_phy_force_speed_duplex_m88()
1341 			if (hw->phy.type != e1000_phy_m88) {  in e1000e_phy_force_speed_duplex_m88()
1364 	if (hw->phy.type != e1000_phy_m88)  in e1000e_phy_force_speed_duplex_m88()
1371 	/* Resetting the phy means we need to re-force TX_CLK in the  in e1000e_phy_force_speed_duplex_m88()
1372 	 * Extended PHY Specific Control Register to 25MHz clock from  in e1000e_phy_force_speed_duplex_m88()
1380 	/* In addition, we must re-enable CRS on Tx for both half and full  in e1000e_phy_force_speed_duplex_m88()
1394  *  e1000_phy_force_speed_duplex_ife - Force PHY speed & duplex
1403 	struct e1000_phy_info *phy = &hw->phy;  in e1000_phy_force_speed_duplex_ife()
1418 	/* Disable MDI-X support for 10/100 */  in e1000_phy_force_speed_duplex_ife()
1434 	if (phy->autoneg_wait_to_complete) {  in e1000_phy_force_speed_duplex_ife()
1456  *  e1000e_phy_force_speed_duplex_setup - Configure forced PHY speed/duplex
1460  *  Forces speed and duplex on the PHY by doing the following: disable flow
1461  *  control, force speed/duplex on the MAC, disable auto speed detection,
1462  *  disable auto-negotiation, configure duplex, configure speed, configure
1469 	struct e1000_mac_info *mac = &hw->mac;  in e1000e_phy_force_speed_duplex_setup()
1472 	/* Turn off flow control when forcing speed/duplex */  in e1000e_phy_force_speed_duplex_setup()
1473 	hw->fc.current_mode = e1000_fc_none;  in e1000e_phy_force_speed_duplex_setup()
1480 	/* Disable Auto Speed Detection */  in e1000e_phy_force_speed_duplex_setup()
1487 	if (mac->forced_speed_duplex & E1000_ALL_HALF_DUPLEX) {  in e1000e_phy_force_speed_duplex_setup()
1498 	if (mac->forced_speed_duplex & E1000_ALL_100_SPEED) {  in e1000e_phy_force_speed_duplex_setup()
1509 	hw->mac.ops.config_collision_dist(hw);  in e1000e_phy_force_speed_duplex_setup()
1515  *  e1000e_set_d3_lplu_state - Sets low power link up state for D3
1530 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_set_d3_lplu_state()
1548 		if (phy->smart_speed == e1000_smart_speed_on) {  in e1000e_set_d3_lplu_state()
1559 		} else if (phy->smart_speed == e1000_smart_speed_off) {  in e1000e_set_d3_lplu_state()
1571 	} else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||  in e1000e_set_d3_lplu_state()
1572 		   (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||  in e1000e_set_d3_lplu_state()
1573 		   (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {  in e1000e_set_d3_lplu_state()
1592  *  e1000e_check_downshift - Checks whether a downshift in speed occurred
1601 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_check_downshift()
1605 	switch (phy->type) {  in e1000e_check_downshift()
1620 		phy->speed_downgraded = false;  in e1000e_check_downshift()
1627 		phy->speed_downgraded = !!(phy_data & mask);  in e1000e_check_downshift()
1633  *  e1000_check_polarity_m88 - Checks the polarity.
1636  *  Success returns 0, Failure returns -E1000_ERR_PHY (-2)
1642 	struct e1000_phy_info *phy = &hw->phy;  in e1000_check_polarity_m88()
1649 		phy->cable_polarity = ((data & M88E1000_PSSR_REV_POLARITY)  in e1000_check_polarity_m88()
1657  *  e1000_check_polarity_igp - Checks the polarity.
1660  *  Success returns 0, Failure returns -E1000_ERR_PHY (-2)
1667 	struct e1000_phy_info *phy = &hw->phy;  in e1000_check_polarity_igp()
1693 		phy->cable_polarity = ((data & mask)  in e1000_check_polarity_igp()
1701  *  e1000_check_polarity_ife - Check cable polarity for IFE PHY
1708 	struct e1000_phy_info *phy = &hw->phy;  in e1000_check_polarity_ife()
1714 	if (phy->polarity_correction) {  in e1000_check_polarity_ife()
1725 		phy->cable_polarity = ((phy_data & mask)  in e1000_check_polarity_ife()
1733  *  e1000_wait_autoneg - Wait for auto-neg completion
1736  *  Waits for auto-negotiation to complete or for the auto-negotiation time
1745 	for (i = PHY_AUTO_NEG_LIMIT; i > 0; i--) {  in e1000_wait_autoneg()
1757 	/* PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation  in e1000_wait_autoneg()
1764  *  e1000e_phy_has_link_generic - Polls PHY for link
1812  *  e1000e_get_cable_length_m88 - Determine cable length for m88 PHY
1821  *	1			50 - 80 meters
1822  *	2			80 - 110 meters
1823  *	3			110 - 140 meters
1828 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_get_cable_length_m88()
1838 	if (index >= M88E1000_CABLE_LENGTH_TABLE_SIZE - 1)  in e1000e_get_cable_length_m88()
1839 		return -E1000_ERR_PHY;  in e1000e_get_cable_length_m88()
1841 	phy->min_cable_length = e1000_m88_cable_length_table[index];  in e1000e_get_cable_length_m88()
1842 	phy->max_cable_length = e1000_m88_cable_length_table[index + 1];  in e1000e_get_cable_length_m88()
1844 	phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;  in e1000e_get_cable_length_m88()
1850  *  e1000e_get_cable_length_igp_2 - Determine cable length for igp2 PHY
1853  *  The automatic gain control (agc) normalizes the amplitude of the
1862 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_get_cable_length_igp_2()
1866 	u16 min_agc_index = IGP02E1000_CABLE_LENGTH_TABLE_SIZE - 1;  in e1000e_get_cable_length_igp_2()
1891 			return -E1000_ERR_PHY;  in e1000e_get_cable_length_igp_2()
1904 	agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] +  in e1000e_get_cable_length_igp_2()
1906 	agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2);  in e1000e_get_cable_length_igp_2()
1908 	/* Calculate cable length with the error range of +/- 10 meters. */  in e1000e_get_cable_length_igp_2()
1909 	phy->min_cable_length = (((agc_value - IGP02E1000_AGC_RANGE) > 0) ?  in e1000e_get_cable_length_igp_2()
1910 				 (agc_value - IGP02E1000_AGC_RANGE) : 0);  in e1000e_get_cable_length_igp_2()
1911 	phy->max_cable_length = agc_value + IGP02E1000_AGC_RANGE;  in e1000e_get_cable_length_igp_2()
1913 	phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;  in e1000e_get_cable_length_igp_2()
1919  *  e1000e_get_phy_info_m88 - Retrieve PHY information
1923  *  to verify that link is up.  Read the PHY special control register to
1924  *  determine the polarity and 10base-T extended distance.  Read the PHY
1930 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_get_phy_info_m88()
1935 	if (phy->media_type != e1000_media_type_copper) {  in e1000e_get_phy_info_m88()
1937 		return -E1000_ERR_CONFIG;  in e1000e_get_phy_info_m88()
1946 		return -E1000_ERR_CONFIG;  in e1000e_get_phy_info_m88()
1953 	phy->polarity_correction = !!(phy_data &  in e1000e_get_phy_info_m88()
1964 	phy->is_mdix = !!(phy_data & M88E1000_PSSR_MDIX);  in e1000e_get_phy_info_m88()
1967 		ret_val = hw->phy.ops.get_cable_length(hw);  in e1000e_get_phy_info_m88()
1975 		phy->local_rx = (phy_data & LPA_1000LOCALRXOK)  in e1000e_get_phy_info_m88()
1978 		phy->remote_rx = (phy_data & LPA_1000REMRXOK)  in e1000e_get_phy_info_m88()
1982 		phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;  in e1000e_get_phy_info_m88()
1983 		phy->local_rx = e1000_1000t_rx_status_undefined;  in e1000e_get_phy_info_m88()
1984 		phy->remote_rx = e1000_1000t_rx_status_undefined;  in e1000e_get_phy_info_m88()
1991  *  e1000e_get_phy_info_igp - Retrieve igp PHY information
1995  *  set/determine 10base-T extended distance and polarity correction.  Read
2001 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_get_phy_info_igp()
2012 		return -E1000_ERR_CONFIG;  in e1000e_get_phy_info_igp()
2015 	phy->polarity_correction = true;  in e1000e_get_phy_info_igp()
2025 	phy->is_mdix = !!(data & IGP01E1000_PSSR_MDIX);  in e1000e_get_phy_info_igp()
2029 		ret_val = phy->ops.get_cable_length(hw);  in e1000e_get_phy_info_igp()
2037 		phy->local_rx = (data & LPA_1000LOCALRXOK)  in e1000e_get_phy_info_igp()
2040 		phy->remote_rx = (data & LPA_1000REMRXOK)  in e1000e_get_phy_info_igp()
2043 		phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;  in e1000e_get_phy_info_igp()
2044 		phy->local_rx = e1000_1000t_rx_status_undefined;  in e1000e_get_phy_info_igp()
2045 		phy->remote_rx = e1000_1000t_rx_status_undefined;  in e1000e_get_phy_info_igp()
2052  *  e1000_get_phy_info_ife - Retrieves various IFE PHY states
2059 	struct e1000_phy_info *phy = &hw->phy;  in e1000_get_phy_info_ife()
2070 		return -E1000_ERR_CONFIG;  in e1000_get_phy_info_ife()
2076 	phy->polarity_correction = !(data & IFE_PSC_AUTO_POLARITY_DISABLE);  in e1000_get_phy_info_ife()
2078 	if (phy->polarity_correction) {  in e1000_get_phy_info_ife()
2084 		phy->cable_polarity = ((data & IFE_PSC_FORCE_POLARITY)  in e1000_get_phy_info_ife()
2093 	phy->is_mdix = !!(data & IFE_PMC_MDIX_STATUS);  in e1000_get_phy_info_ife()
2096 	phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;  in e1000_get_phy_info_ife()
2097 	phy->local_rx = e1000_1000t_rx_status_undefined;  in e1000_get_phy_info_ife()
2098 	phy->remote_rx = e1000_1000t_rx_status_undefined;  in e1000_get_phy_info_ife()
2104  *  e1000e_phy_sw_reset - PHY software reset
2107  *  Does a software reset of the PHY by reading the PHY control register and
2108  *  setting/write the control register reset bit to the PHY.
2130  *  e1000e_phy_hw_reset_generic - PHY hardware reset
2134  *  semaphore (if necessary) and read/set/write the device control reset
2140 	struct e1000_phy_info *phy = &hw->phy;  in e1000e_phy_hw_reset_generic()
2144 	if (phy->ops.check_reset_block) {  in e1000e_phy_hw_reset_generic()
2145 		ret_val = phy->ops.check_reset_block(hw);  in e1000e_phy_hw_reset_generic()
2150 	ret_val = phy->ops.acquire(hw);  in e1000e_phy_hw_reset_generic()
2158 	udelay(phy->reset_delay_us);  in e1000e_phy_hw_reset_generic()
2165 	phy->ops.release(hw);  in e1000e_phy_hw_reset_generic()
2167 	return phy->ops.get_cfg_done(hw);  in e1000e_phy_hw_reset_generic()
2171  *  e1000e_get_cfg_done_generic - Generic configuration done
2174  *  Generic function to wait 10 milli-seconds for configuration to complete
2185  *  e1000e_phy_init_script_igp3 - Inits the IGP3 PHY
2195 	/* Enable rise/fall, 10-mode work in class-A */  in e1000e_phy_init_script_igp3()
2253 	/* Enable LPLU and disable AN to 1000 in non-D0a states,  in e1000e_phy_init_script_igp3()
2268  *  e1000e_get_phy_type_from_id - Get PHY type from id
2322  *  e1000e_determine_phy_address - Determines PHY address.
2335 	hw->phy.id = phy_type;  in e1000e_determine_phy_address()
2338 		hw->phy.addr = phy_addr;  in e1000e_determine_phy_address()
2343 			phy_type = e1000e_get_phy_type_from_id(hw->phy.id);  in e1000e_determine_phy_address()
2345 			/* If phy_type is valid, break - we found our  in e1000e_determine_phy_address()
2356 	return -E1000_ERR_PHY_TYPE;  in e1000e_determine_phy_address()
2360  *  e1000_get_phy_addr_for_bm_page - Retrieve PHY page address
2377  *  e1000e_write_phy_reg_bm - Write BM PHY register
2390 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_write_phy_reg_bm()
2401 	hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);  in e1000e_write_phy_reg_bm()
2410 		if (hw->phy.addr == 1) {  in e1000e_write_phy_reg_bm()
2429 	hw->phy.ops.release(hw);  in e1000e_write_phy_reg_bm()
2434  *  e1000e_read_phy_reg_bm - Read BM PHY register
2448 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_read_phy_reg_bm()
2459 	hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset);  in e1000e_read_phy_reg_bm()
2468 		if (hw->phy.addr == 1) {  in e1000e_read_phy_reg_bm()
2486 	hw->phy.ops.release(hw);  in e1000e_read_phy_reg_bm()
2491  *  e1000e_read_phy_reg_bm2 - Read BM PHY register
2505 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_read_phy_reg_bm2()
2516 	hw->phy.addr = 1;  in e1000e_read_phy_reg_bm2()
2530 	hw->phy.ops.release(hw);  in e1000e_read_phy_reg_bm2()
2535  *  e1000e_write_phy_reg_bm2 - Write BM PHY register
2548 	ret_val = hw->phy.ops.acquire(hw);  in e1000e_write_phy_reg_bm2()
2559 	hw->phy.addr = 1;  in e1000e_write_phy_reg_bm2()
2574 	hw->phy.ops.release(hw);  in e1000e_write_phy_reg_bm2()
2579  *  e1000_enable_phy_wakeup_reg_access_bm - enable access to BM wakeup registers
2592 	hw->phy.addr = 1;  in e1000_enable_phy_wakeup_reg_access_bm()
2594 	/* Select Port Control Registers page */  in e1000_enable_phy_wakeup_reg_access_bm()
2597 		e_dbg("Could not set Port Control page\n");  in e1000_enable_phy_wakeup_reg_access_bm()
2622 	/* Select Host Wakeup Registers page - caller now able to write  in e1000_enable_phy_wakeup_reg_access_bm()
2629  *  e1000_disable_phy_wakeup_reg_access_bm - disable access to BM wakeup regs
2643 	/* Select Port Control Registers page */  in e1000_disable_phy_wakeup_reg_access_bm()
2646 		e_dbg("Could not set Port Control page\n");  in e1000_disable_phy_wakeup_reg_access_bm()
2660  *  e1000_access_phy_wakeup_reg_bm - Read/write BM PHY wakeup register
2693 	if ((hw->mac.type == e1000_pchlan) &&  in e1000_access_phy_wakeup_reg_bm()
2738  * e1000_power_up_phy_copper - Restore copper link in case of PHY power down
2761  * e1000_power_down_phy_copper - Restore copper link in case of PHY power down
2785  *  __e1000_read_phy_reg_hv -  Read HV PHY register
2802 	u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page);  in __e1000_read_phy_reg_hv()
2805 		ret_val = hw->phy.ops.acquire(hw);  in __e1000_read_phy_reg_hv()
2832 			hw->phy.addr = phy_addr;  in __e1000_read_phy_reg_hv()
2845 		hw->phy.ops.release(hw);  in __e1000_read_phy_reg_hv()
2851  *  e1000_read_phy_reg_hv -  Read HV PHY register
2866  *  e1000_read_phy_reg_hv_locked -  Read HV PHY register
2880  *  e1000_read_phy_reg_page_hv - Read HV PHY register
2894  *  __e1000_write_phy_reg_hv - Write HV PHY register
2910 	u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page);  in __e1000_write_phy_reg_hv()
2913 		ret_val = hw->phy.ops.acquire(hw);  in __e1000_write_phy_reg_hv()
2936 		 * Power Down (when bit 11 of the PHY Control register is set)  in __e1000_write_phy_reg_hv()
2938 		if ((hw->phy.type == e1000_phy_82578) &&  in __e1000_write_phy_reg_hv()
2939 		    (hw->phy.revision >= 1) &&  in __e1000_write_phy_reg_hv()
2940 		    (hw->phy.addr == 2) &&  in __e1000_write_phy_reg_hv()
2956 			hw->phy.addr = phy_addr;  in __e1000_write_phy_reg_hv()
2971 		hw->phy.ops.release(hw);  in __e1000_write_phy_reg_hv()
2977  *  e1000_write_phy_reg_hv - Write HV PHY register
2991  *  e1000_write_phy_reg_hv_locked - Write HV PHY register
3005  *  e1000_write_phy_reg_page_hv - Write HV PHY register
3019  *  e1000_get_phy_addr_for_hv_page - Get PHY address based on page
3033  *  e1000_access_phy_debug_regs_hv - Read HV PHY vendor specific high registers
3052 	addr_reg = ((hw->phy.type == e1000_phy_82578) ?  in e1000_access_phy_debug_regs_hv()
3057 	hw->phy.addr = 2;  in e1000_access_phy_debug_regs_hv()
3079  *  e1000_link_stall_workaround_hv - Si workaround
3094 	if (hw->phy.type != e1000_phy_82578)  in e1000_link_stall_workaround_hv()
3131  *  e1000_check_polarity_82577 - Checks the polarity.
3134  *  Success returns 0, Failure returns -E1000_ERR_PHY (-2)
3140 	struct e1000_phy_info *phy = &hw->phy;  in e1000_check_polarity_82577()
3147 		phy->cable_polarity = ((data & I82577_PHY_STATUS2_REV_POLARITY)  in e1000_check_polarity_82577()
3155  *  e1000_phy_force_speed_duplex_82577 - Force speed/duplex for I82577 PHY
3162 	struct e1000_phy_info *phy = &hw->phy;  in e1000_phy_force_speed_duplex_82577()
3179 	if (phy->autoneg_wait_to_complete) {  in e1000_phy_force_speed_duplex_82577()
3199  *  e1000_get_phy_info_82577 - Retrieve I82577 PHY information
3203  *  set/determine 10base-T extended distance and polarity correction.  Read
3209 	struct e1000_phy_info *phy = &hw->phy;  in e1000_get_phy_info_82577()
3220 		return -E1000_ERR_CONFIG;  in e1000_get_phy_info_82577()
3223 	phy->polarity_correction = true;  in e1000_get_phy_info_82577()
3233 	phy->is_mdix = !!(data & I82577_PHY_STATUS2_MDIX);  in e1000_get_phy_info_82577()
3237 		ret_val = hw->phy.ops.get_cable_length(hw);  in e1000_get_phy_info_82577()
3245 		phy->local_rx = (data & LPA_1000LOCALRXOK)  in e1000_get_phy_info_82577()
3248 		phy->remote_rx = (data & LPA_1000REMRXOK)  in e1000_get_phy_info_82577()
3251 		phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;  in e1000_get_phy_info_82577()
3252 		phy->local_rx = e1000_1000t_rx_status_undefined;  in e1000_get_phy_info_82577()
3253 		phy->remote_rx = e1000_1000t_rx_status_undefined;  in e1000_get_phy_info_82577()
3260  *  e1000_get_cable_length_82577 - Determine cable length for 82577 PHY
3268 	struct e1000_phy_info *phy = &hw->phy;  in e1000_get_cable_length_82577()
3279 		return -E1000_ERR_PHY;  in e1000_get_cable_length_82577()
3281 	phy->cable_length = length;  in e1000_get_cable_length_82577()