e1000e: correct ICH/PCH PHY operations function pointers

Some function pointers for a few PHY operations (for 82578 and 82567) and
were set incorrectly causing functions to be executed that were accessing
incorrect PHY register offsets for that particular device.  This patch also
moves a few PHY-specific functions from ich8lan.c to the more appropriate
phy.c.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/e1000e/e1000.h

@@ -590,6 +590,12 @@ extern s32 e1000_get_phy_info_82577(struct e1000_hw *hw);
 extern s32 e1000_phy_force_speed_duplex_82577(struct e1000_hw *hw);
 extern s32 e1000_get_cable_length_82577(struct e1000_hw *hw);
 
+extern s32 e1000_check_polarity_m88(struct e1000_hw *hw);
+extern s32 e1000_get_phy_info_ife(struct e1000_hw *hw);
+extern s32 e1000_check_polarity_ife(struct e1000_hw *hw);
+extern s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw);
+extern s32 e1000_check_polarity_igp(struct e1000_hw *hw);
+
 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 {
 	return hw->phy.ops.reset(hw);

drivers/net/e1000e/ich8lan.c

@@ -195,7 +195,6 @@ union ich8_flash_protected_range {
 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
-static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw);
 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
 						u32 offset, u8 byte);
@@ -260,7 +259,6 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
 	phy->addr                     = 1;
 	phy->reset_delay_us           = 100;
 
-	phy->ops.check_polarity       = e1000_check_polarity_ife_ich8lan;
 	phy->ops.read_reg             = e1000_read_phy_reg_hv;
 	phy->ops.read_reg_locked      = e1000_read_phy_reg_hv_locked;
 	phy->ops.set_d0_lplu_state    = e1000_set_lplu_state_pchlan;
@@ -275,13 +273,23 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
 	e1000e_get_phy_id(hw);
 	phy->type = e1000e_get_phy_type_from_id(phy->id);
 
-	if (phy->type == e1000_phy_82577) {
+	switch (phy->type) {
+	case e1000_phy_82577:
 		phy->ops.check_polarity = e1000_check_polarity_82577;
 		phy->ops.force_speed_duplex =
 			e1000_phy_force_speed_duplex_82577;
-		phy->ops.get_cable_length   = e1000_get_cable_length_82577;
+		phy->ops.get_cable_length = e1000_get_cable_length_82577;
 		phy->ops.get_info = e1000_get_phy_info_82577;
 		phy->ops.commit = e1000e_phy_sw_reset;
+	case e1000_phy_82578:
+		phy->ops.check_polarity = e1000_check_polarity_m88;
+		phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
+		phy->ops.get_cable_length = e1000e_get_cable_length_m88;
+		phy->ops.get_info = e1000e_get_phy_info_m88;
+		break;
+	default:
+		ret_val = -E1000_ERR_PHY;
+		break;
 	}
 
 	return ret_val;
@@ -336,12 +344,18 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
 		phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
 		phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked;
 		phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked;
+		phy->ops.get_info = e1000e_get_phy_info_igp;
+		phy->ops.check_polarity = e1000_check_polarity_igp;
+		phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_igp;
 		break;
 	case IFE_E_PHY_ID:
 	case IFE_PLUS_E_PHY_ID:
 	case IFE_C_E_PHY_ID:
 		phy->type = e1000_phy_ife;
 		phy->autoneg_mask = E1000_ALL_NOT_GIG;
+		phy->ops.get_info = e1000_get_phy_info_ife;
+		phy->ops.check_polarity = e1000_check_polarity_ife;
+		phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife;
 		break;
 	case BME1000_E_PHY_ID:
 		phy->type = e1000_phy_bm;
@@ -349,14 +363,15 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
 		phy->ops.read_reg = e1000e_read_phy_reg_bm;
 		phy->ops.write_reg = e1000e_write_phy_reg_bm;
 		phy->ops.commit = e1000e_phy_sw_reset;
+		phy->ops.get_info = e1000e_get_phy_info_m88;
+		phy->ops.check_polarity = e1000_check_polarity_m88;
+		phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
 		break;
 	default:
 		return -E1000_ERR_PHY;
 		break;
 	}
 
-	phy->ops.check_polarity = e1000_check_polarity_ife_ich8lan;
-
 	return 0;
 }
 
@@ -739,77 +754,6 @@ static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
 	return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET;
 }
 
-/**
- *  e1000_phy_force_speed_duplex_ich8lan - Force PHY speed & duplex
- *  @hw: pointer to the HW structure
- *
- *  Forces the speed and duplex settings of the PHY.
- *  This is a function pointer entry point only called by
- *  PHY setup routines.
- **/
-static s32 e1000_phy_force_speed_duplex_ich8lan(struct e1000_hw *hw)
-{
-	struct e1000_phy_info *phy = &hw->phy;
-	s32 ret_val;
-	u16 data;
-	bool link;
-
-	if (phy->type != e1000_phy_ife) {
-		ret_val = e1000e_phy_force_speed_duplex_igp(hw);
-		return ret_val;
-	}
-
-	ret_val = e1e_rphy(hw, PHY_CONTROL, &data);
-	if (ret_val)
-		return ret_val;
-
-	e1000e_phy_force_speed_duplex_setup(hw, &data);
-
-	ret_val = e1e_wphy(hw, PHY_CONTROL, data);
-	if (ret_val)
-		return ret_val;
-
-	/* Disable MDI-X support for 10/100 */
-	ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
-	if (ret_val)
-		return ret_val;
-
-	data &= ~IFE_PMC_AUTO_MDIX;
-	data &= ~IFE_PMC_FORCE_MDIX;
-
-	ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, data);
-	if (ret_val)
-		return ret_val;
-
-	e_dbg("IFE PMC: %X\n", data);
-
-	udelay(1);
-
-	if (phy->autoneg_wait_to_complete) {
-		e_dbg("Waiting for forced speed/duplex link on IFE phy.\n");
-
-		ret_val = e1000e_phy_has_link_generic(hw,
-						     PHY_FORCE_LIMIT,
-						     100000,
-						     &link);
-		if (ret_val)
-			return ret_val;
-
-		if (!link)
-			e_dbg("Link taking longer than expected.\n");
-
-		/* Try once more */
-		ret_val = e1000e_phy_has_link_generic(hw,
-						     PHY_FORCE_LIMIT,
-						     100000,
-						     &link);
-		if (ret_val)
-			return ret_val;
-	}
-
-	return 0;
-}
-
 /**
  *  e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
  *  @hw:   pointer to the HW structure
@@ -1261,122 +1205,6 @@ out:
 	return 0;
 }
 
-/**
- *  e1000_get_phy_info_ife_ich8lan - Retrieves various IFE PHY states
- *  @hw: pointer to the HW structure
- *
- *  Populates "phy" structure with various feature states.
- *  This function is only called by other family-specific
- *  routines.
- **/
-static s32 e1000_get_phy_info_ife_ich8lan(struct e1000_hw *hw)
-{
-	struct e1000_phy_info *phy = &hw->phy;
-	s32 ret_val;
-	u16 data;
-	bool link;
-
-	ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
-	if (ret_val)
-		return ret_val;
-
-	if (!link) {
-		e_dbg("Phy info is only valid if link is up\n");
-		return -E1000_ERR_CONFIG;
-	}
-
-	ret_val = e1e_rphy(hw, IFE_PHY_SPECIAL_CONTROL, &data);
-	if (ret_val)
-		return ret_val;
-	phy->polarity_correction = (!(data & IFE_PSC_AUTO_POLARITY_DISABLE));
-
-	if (phy->polarity_correction) {
-		ret_val = phy->ops.check_polarity(hw);
-		if (ret_val)
-			return ret_val;
-	} else {
-		/* Polarity is forced */
-		phy->cable_polarity = (data & IFE_PSC_FORCE_POLARITY)
-				      ? e1000_rev_polarity_reversed
-				      : e1000_rev_polarity_normal;
-	}
-
-	ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
-	if (ret_val)
-		return ret_val;
-
-	phy->is_mdix = (data & IFE_PMC_MDIX_STATUS);
-
-	/* The following parameters are undefined for 10/100 operation. */
-	phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
-	phy->local_rx = e1000_1000t_rx_status_undefined;
-	phy->remote_rx = e1000_1000t_rx_status_undefined;
-
-	return 0;
-}
-
-/**
- *  e1000_get_phy_info_ich8lan - Calls appropriate PHY type get_phy_info
- *  @hw: pointer to the HW structure
- *
- *  Wrapper for calling the get_phy_info routines for the appropriate phy type.
- *  This is a function pointer entry point called by drivers
- *  or other shared routines.
- **/
-static s32 e1000_get_phy_info_ich8lan(struct e1000_hw *hw)
-{
-	switch (hw->phy.type) {
-	case e1000_phy_ife:
-		return e1000_get_phy_info_ife_ich8lan(hw);
-		break;
-	case e1000_phy_igp_3:
-	case e1000_phy_bm:
-	case e1000_phy_82578:
-	case e1000_phy_82577:
-		return e1000e_get_phy_info_igp(hw);
-		break;
-	default:
-		break;
-	}
-
-	return -E1000_ERR_PHY_TYPE;
-}
-
-/**
- *  e1000_check_polarity_ife_ich8lan - Check cable polarity for IFE PHY
- *  @hw: pointer to the HW structure
- *
- *  Polarity is determined on the polarity reversal feature being enabled.
- *  This function is only called by other family-specific
- *  routines.
- **/
-static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw)
-{
-	struct e1000_phy_info *phy = &hw->phy;
-	s32 ret_val;
-	u16 phy_data, offset, mask;
-
-	/*
-	 * Polarity is determined based on the reversal feature being enabled.
-	 */
-	if (phy->polarity_correction) {
-		offset	= IFE_PHY_EXTENDED_STATUS_CONTROL;
-		mask	= IFE_PESC_POLARITY_REVERSED;
-	} else {
-		offset	= IFE_PHY_SPECIAL_CONTROL;
-		mask	= IFE_PSC_FORCE_POLARITY;
-	}
-
-	ret_val = e1e_rphy(hw, offset, &phy_data);
-
-	if (!ret_val)
-		phy->cable_polarity = (phy_data & mask)
-				      ? e1000_rev_polarity_reversed
-				      : e1000_rev_polarity_normal;
-
-	return ret_val;
-}
-
 /**
  *  e1000_set_lplu_state_pchlan - Set Low Power Link Up state
  *  @hw: pointer to the HW structure
@@ -3485,10 +3313,8 @@ static struct e1000_phy_operations ich8_phy_ops = {
 	.acquire		= e1000_acquire_swflag_ich8lan,
 	.check_reset_block	= e1000_check_reset_block_ich8lan,
 	.commit			= NULL,
-	.force_speed_duplex	= e1000_phy_force_speed_duplex_ich8lan,
 	.get_cfg_done		= e1000_get_cfg_done_ich8lan,
 	.get_cable_length	= e1000e_get_cable_length_igp_2,
-	.get_info		= e1000_get_phy_info_ich8lan,
 	.read_reg		= e1000e_read_phy_reg_igp,
 	.release		= e1000_release_swflag_ich8lan,
 	.reset			= e1000_phy_hw_reset_ich8lan,

drivers/net/e1000e/phy.c

@@ -1322,17 +1322,22 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			return ret_val;
 
 		if (!link) {
-			/*
-			 * We didn't get link.
-			 * Reset the DSP and cross our fingers.
-			 */
-			ret_val = e1e_wphy(hw, M88E1000_PHY_PAGE_SELECT,
-					   0x001d);
-			if (ret_val)
-				return ret_val;
-			ret_val = e1000e_phy_reset_dsp(hw);
-			if (ret_val)
-				return ret_val;
+			if (hw->phy.type != e1000_phy_m88) {
+				e_dbg("Link taking longer than expected.\n");
+			} else {
+				/*
+				 * We didn't get link.
+				 * Reset the DSP and cross our fingers.
+				 */
+				ret_val = e1e_wphy(hw,
+						M88E1000_PHY_PAGE_SELECT,
+						0x001d);
+				if (ret_val)
+					return ret_val;
+				ret_val = e1000e_phy_reset_dsp(hw);
+				if (ret_val)
+					return ret_val;
+			}
 		}
 
 		/* Try once more */
@@ -1342,6 +1347,9 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			return ret_val;
 	}
 
+	if (hw->phy.type != e1000_phy_m88)
+		return 0;
+
 	ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		return ret_val;
@@ -1370,6 +1378,73 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	return ret_val;
 }
 
+/**
+ *  e1000_phy_force_speed_duplex_ife - Force PHY speed & duplex
+ *  @hw: pointer to the HW structure
+ *
+ *  Forces the speed and duplex settings of the PHY.
+ *  This is a function pointer entry point only called by
+ *  PHY setup routines.
+ **/
+s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw)
+{
+	struct e1000_phy_info *phy = &hw->phy;
+	s32 ret_val;
+	u16 data;
+	bool link;
+
+	ret_val = e1e_rphy(hw, PHY_CONTROL, &data);
+	if (ret_val)
+		goto out;
+
+	e1000e_phy_force_speed_duplex_setup(hw, &data);
+
+	ret_val = e1e_wphy(hw, PHY_CONTROL, data);
+	if (ret_val)
+		goto out;
+
+	/* Disable MDI-X support for 10/100 */
+	ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
+	if (ret_val)
+		goto out;
+
+	data &= ~IFE_PMC_AUTO_MDIX;
+	data &= ~IFE_PMC_FORCE_MDIX;
+
+	ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, data);
+	if (ret_val)
+		goto out;
+
+	e_dbg("IFE PMC: %X\n", data);
+
+	udelay(1);
+
+	if (phy->autoneg_wait_to_complete) {
+		e_dbg("Waiting for forced speed/duplex link on IFE phy.\n");
+
+		ret_val = e1000e_phy_has_link_generic(hw,
+		                                     PHY_FORCE_LIMIT,
+		                                     100000,
+		                                     &link);
+		if (ret_val)
+			goto out;
+
+		if (!link)
+			e_dbg("Link taking longer than expected.\n");
+
+		/* Try once more */
+		ret_val = e1000e_phy_has_link_generic(hw,
+		                                     PHY_FORCE_LIMIT,
+		                                     100000,
+		                                     &link);
+		if (ret_val)
+			goto out;
+	}
+
+out:
+	return ret_val;
+}
+
 /**
  *  e1000e_phy_force_speed_duplex_setup - Configure forced PHY speed/duplex
  *  @hw: pointer to the HW structure
@@ -1557,7 +1632,7 @@ s32 e1000e_check_downshift(struct e1000_hw *hw)
  *
  *  Polarity is determined based on the PHY specific status register.
  **/
-static s32 e1000_check_polarity_m88(struct e1000_hw *hw)
+s32 e1000_check_polarity_m88(struct e1000_hw *hw)
 {
 	struct e1000_phy_info *phy = &hw->phy;
 	s32 ret_val;
@@ -1582,7 +1657,7 @@ static s32 e1000_check_polarity_m88(struct e1000_hw *hw)
  *  Polarity is determined based on the PHY port status register, and the
  *  current speed (since there is no polarity at 100Mbps).
  **/
-static s32 e1000_check_polarity_igp(struct e1000_hw *hw)
+s32 e1000_check_polarity_igp(struct e1000_hw *hw)
 {
 	struct e1000_phy_info *phy = &hw->phy;
 	s32 ret_val;
@@ -1619,6 +1694,39 @@ static s32 e1000_check_polarity_igp(struct e1000_hw *hw)
 	return ret_val;
 }
 
+/**
+ *  e1000_check_polarity_ife - Check cable polarity for IFE PHY
+ *  @hw: pointer to the HW structure
+ *
+ *  Polarity is determined on the polarity reversal feature being enabled.
+ **/
+s32 e1000_check_polarity_ife(struct e1000_hw *hw)
+{
+	struct e1000_phy_info *phy = &hw->phy;
+	s32 ret_val;
+	u16 phy_data, offset, mask;
+
+	/*
+	 * Polarity is determined based on the reversal feature being enabled.
+	 */
+	if (phy->polarity_correction) {
+		offset = IFE_PHY_EXTENDED_STATUS_CONTROL;
+		mask = IFE_PESC_POLARITY_REVERSED;
+	} else {
+		offset = IFE_PHY_SPECIAL_CONTROL;
+		mask = IFE_PSC_FORCE_POLARITY;
+	}
+
+	ret_val = e1e_rphy(hw, offset, &phy_data);
+
+	if (!ret_val)
+		phy->cable_polarity = (phy_data & mask)
+		                       ? e1000_rev_polarity_reversed
+		                       : e1000_rev_polarity_normal;
+
+	return ret_val;
+}
+
 /**
  *  e1000_wait_autoneg - Wait for auto-neg completion
  *  @hw: pointer to the HW structure
@@ -1823,7 +1931,7 @@ s32 e1000e_get_phy_info_m88(struct e1000_hw *hw)
 	u16 phy_data;
 	bool link;
 
-	if (hw->phy.media_type != e1000_media_type_copper) {
+	if (phy->media_type != e1000_media_type_copper) {
 		e_dbg("Phy info is only valid for copper media\n");
 		return -E1000_ERR_CONFIG;
 	}
@@ -1943,6 +2051,61 @@ s32 e1000e_get_phy_info_igp(struct e1000_hw *hw)
 	return ret_val;
 }
 
+/**
+ *  e1000_get_phy_info_ife - Retrieves various IFE PHY states
+ *  @hw: pointer to the HW structure
+ *
+ *  Populates "phy" structure with various feature states.
+ **/
+s32 e1000_get_phy_info_ife(struct e1000_hw *hw)
+{
+	struct e1000_phy_info *phy = &hw->phy;
+	s32 ret_val;
+	u16 data;
+	bool link;
+
+	ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
+	if (ret_val)
+		goto out;
+
+	if (!link) {
+		e_dbg("Phy info is only valid if link is up\n");
+		ret_val = -E1000_ERR_CONFIG;
+		goto out;
+	}
+
+	ret_val = e1e_rphy(hw, IFE_PHY_SPECIAL_CONTROL, &data);
+	if (ret_val)
+		goto out;
+	phy->polarity_correction = (data & IFE_PSC_AUTO_POLARITY_DISABLE)
+	                           ? false : true;
+
+	if (phy->polarity_correction) {
+		ret_val = e1000_check_polarity_ife(hw);
+		if (ret_val)
+			goto out;
+	} else {
+		/* Polarity is forced */
+		phy->cable_polarity = (data & IFE_PSC_FORCE_POLARITY)
+		                      ? e1000_rev_polarity_reversed
+		                      : e1000_rev_polarity_normal;
+	}
+
+	ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
+	if (ret_val)
+		goto out;
+
+	phy->is_mdix = (data & IFE_PMC_MDIX_STATUS) ? true : false;
+
+	/* The following parameters are undefined for 10/100 operation. */
+	phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
+	phy->local_rx = e1000_1000t_rx_status_undefined;
+	phy->remote_rx = e1000_1000t_rx_status_undefined;
+
+out:
+	return ret_val;
+}
+
 /**
  *  e1000e_phy_sw_reset - PHY software reset
  *  @hw: pointer to the HW structure