[Intel-wired-lan] [PATCH iwl-next v4 0/2] ixgbe: Refactor ixgbe internal status

[Intel-wired-lan] [PATCH iwl-next v4 0/2] ixgbe: Refactor ixgbe internal status

[Jedrzej Jagielski]

A small 2 patches series removing currently used internal status codes in
ixgbe driver and converting them to the regular ones.

1st patch deals specifically with overtemp error code, the 2nd one
refactors the rest of the error codes.

Jedrzej Jagielski (2):
  ixgbe: Refactor overtemp event handling
  ixgbe: Refactor returning internal error codes

 .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++--
 .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++---
 .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++---------
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  45 +++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 110 +++++++------
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |   2 +-
 .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  43 +----
 drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 ++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 154 ++++++++++--------
 13 files changed, 320 insertions(+), 359 deletions(-)

-- 
2.31.1

_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

[PATCH iwl-next v4 0/2] ixgbe: Refactor ixgbe internal status

[Jedrzej Jagielski]

A small 2 patches series removing currently used internal status codes in
ixgbe driver and converting them to the regular ones.

1st patch deals specifically with overtemp error code, the 2nd one
refactors the rest of the error codes.

Jedrzej Jagielski (2):
  ixgbe: Refactor overtemp event handling
  ixgbe: Refactor returning internal error codes

 .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++--
 .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++---
 .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++---------
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  45 +++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 110 +++++++------
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |   2 +-
 .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  43 +----
 drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 ++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 154 ++++++++++--------
 13 files changed, 320 insertions(+), 359 deletions(-)

-- 
2.31.1

[Intel-wired-lan] [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Jedrzej Jagielski]

Currently ixgbe driver is notified of overheating events
via internal IXGBE_ERR_OVERTEMP error code.

Change the approach for handle_lasi() to use freshly introduced
is_overtemp function parameter which set when such event occurs.
Change check_overtemp() to bool and return true if overtemp
event occurs.

Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v2: change aproach to use additional function parameter to notify when overheat
v4: change check_overtemp to bool

https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
 5 files changed, 54 insertions(+), 42 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 227415d61efc..9bff614788a2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 eicr = adapter->interrupt_event;
-	s32 rc;
+	bool overtemp;
 
 	if (test_bit(__IXGBE_DOWN, &adapter->state))
 		return;
@@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
 		}
 
 		/* Check if this is not due to overtemp */
-		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
+		overtemp = hw->phy.ops.check_overtemp(hw);
+		if (!overtemp)
 			return;
 
 		break;
 	case IXGBE_DEV_ID_X550EM_A_1G_T:
 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
-		rc = hw->phy.ops.check_overtemp(hw);
-		if (rc != IXGBE_ERR_OVERTEMP)
+		overtemp = hw->phy.ops.check_overtemp(hw);
+		if (!overtemp)
 			return;
 		break;
 	default:
@@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
 static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
-	u32 status;
+	bool overtemp;
 
 	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
 		return;
@@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
 	if (!hw->phy.ops.handle_lasi)
 		return;
 
-	status = hw->phy.ops.handle_lasi(&adapter->hw);
-	if (status != IXGBE_ERR_OVERTEMP)
-		return;
-
-	e_crit(drv, "%s\n", ixgbe_overheat_msg);
+	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
+	if (overtemp)
+		e_crit(drv, "%s\n", ixgbe_overheat_msg);
 }
 
 static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index ca31638c6fb8..343c3ca9b1c9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
  **/
 s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 {
-	u32 i;
-	u16 ctrl = 0;
 	s32 status = 0;
+	bool overtemp;
+	u16 ctrl = 0;
+	u32 i;
 
 	if (hw->phy.type == ixgbe_phy_unknown)
 		status = ixgbe_identify_phy_generic(hw);
@@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 		return status;
 
 	/* Don't reset PHY if it's shut down due to overtemp. */
-	if (!hw->phy.reset_if_overtemp &&
-	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
+	overtemp = hw->phy.ops.check_overtemp(hw);
+	if (!hw->phy.reset_if_overtemp && overtemp)
 		return 0;
 
 	/* Blocked by MNG FW so bail */
@@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
  *
  *  Checks if the LASI temp alarm status was triggered due to overtemp
  **/
-s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
+bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
 {
 	u16 phy_data = 0;
+	u32 status;
 
 	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
-		return 0;
+		return false;
 
 	/* Check that the LASI temp alarm status was triggered */
-	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
-			     MDIO_MMD_PMAPMD, &phy_data);
+	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
+				      MDIO_MMD_PMAPMD, &phy_data);
+	if (status)
+		return false;
 
-	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
-		return 0;
+	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
+		return true;
 
-	return IXGBE_ERR_OVERTEMP;
+	return false;
 }
 
 /** ixgbe_set_copper_phy_power - Control power for copper phy
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index 6544c4539c0d..ef72729d7c93 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
 s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 					u16 *list_offset,
 					u16 *data_offset);
-s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
+bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
 s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
 				u8 dev_addr, u8 *data);
 s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 2b00db92b08f..91c9ecca4cb5 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
 	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
 	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
 	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
-	s32 (*check_overtemp)(struct ixgbe_hw *);
+	bool (*check_overtemp)(struct ixgbe_hw *);
 	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
 	s32 (*enter_lplu)(struct ixgbe_hw *);
-	s32 (*handle_lasi)(struct ixgbe_hw *hw);
+	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
 	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
 				      u8 *value);
 	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index b3509b617a4e..59dd38dd8248 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
 	if (rc)
 		return rc;
+
 	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
-		return IXGBE_ERR_OVERTEMP;
+		return -EIO;
+
 	return 0;
 }
 
@@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
  * @hw: pointer to hardware structure
  * @lsc: pointer to boolean flag which indicates whether external Base T
  *	 PHY interrupt is lsc
+ * @is_overtemp: indicate whether an overtemp event encountered
  *
  * Determime if external Base T PHY interrupt cause is high temperature
  * failure alarm or link status change.
- *
- * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
- * failure alarm, else return PHY access status.
  **/
-static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
+static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
+				       bool *is_overtemp)
 {
 	u32 status;
 	u16 reg;
 
+	if (!hw || !lsc || !is_overtemp)
+		return -EINVAL;
+
+	*is_overtemp = false;
 	*lsc = false;
 
 	/* Vendor alarm triggered */
@@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
 		/* power down the PHY in case the PHY FW didn't already */
 		ixgbe_set_copper_phy_power(hw, false);
-		return IXGBE_ERR_OVERTEMP;
+		*is_overtemp = true;
+		return -EIO;
 	}
 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
 		/*  device fault alarm triggered */
@@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
 		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
 			/* power down the PHY in case the PHY FW didn't */
 			ixgbe_set_copper_phy_power(hw, false);
-			return IXGBE_ERR_OVERTEMP;
+			*is_overtemp = true;
+			return -EIO;
 		}
 	}
 
@@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
  **/
 static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
 {
+	bool lsc, overtemp;
 	u32 status;
 	u16 reg;
-	bool lsc;
 
 	/* Clear interrupt flags */
-	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
+	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
 
 	/* Enable link status change alarm */
 
@@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
 /**
  * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
  * @hw: pointer to hardware structure
+ * @is_overtemp: indicate whether an overtemp event encountered
  *
  * Handle external Base T PHY interrupt. If high temperature
  * failure alarm then return error, else if link status change
  * then setup internal/external PHY link
- *
- * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
- * failure alarm, else return PHY access status.
  **/
-static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
+static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
+					  bool *is_overtemp)
 {
 	struct ixgbe_phy_info *phy = &hw->phy;
 	bool lsc;
 	u32 status;
 
-	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
+	if (!hw || !is_overtemp)
+		return -EINVAL;
+
+	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
 	if (status)
 		return status;
 
@@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
  * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
  * @hw: pointer to hardware structure
  */
-static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
+static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
 {
 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
 	s32 rc;
 
 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
 	if (rc)
-		return rc;
+		return false;
 
 	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
 		ixgbe_shutdown_fw_phy(hw);
-		return IXGBE_ERR_OVERTEMP;
+		return true;
 	}
-	return 0;
+	return false;
 }
 
 /**
-- 
2.31.1

_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

[PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Jedrzej Jagielski]

Currently ixgbe driver is notified of overheating events
via internal IXGBE_ERR_OVERTEMP error code.

Change the approach for handle_lasi() to use freshly introduced
is_overtemp function parameter which set when such event occurs.
Change check_overtemp() to bool and return true if overtemp
event occurs.

Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v2: change aproach to use additional function parameter to notify when overheat
v4: change check_overtemp to bool

https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
 5 files changed, 54 insertions(+), 42 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 227415d61efc..9bff614788a2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 eicr = adapter->interrupt_event;
-	s32 rc;
+	bool overtemp;
 
 	if (test_bit(__IXGBE_DOWN, &adapter->state))
 		return;
@@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
 		}
 
 		/* Check if this is not due to overtemp */
-		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
+		overtemp = hw->phy.ops.check_overtemp(hw);
+		if (!overtemp)
 			return;
 
 		break;
 	case IXGBE_DEV_ID_X550EM_A_1G_T:
 	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
-		rc = hw->phy.ops.check_overtemp(hw);
-		if (rc != IXGBE_ERR_OVERTEMP)
+		overtemp = hw->phy.ops.check_overtemp(hw);
+		if (!overtemp)
 			return;
 		break;
 	default:
@@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
 static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
-	u32 status;
+	bool overtemp;
 
 	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
 		return;
@@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
 	if (!hw->phy.ops.handle_lasi)
 		return;
 
-	status = hw->phy.ops.handle_lasi(&adapter->hw);
-	if (status != IXGBE_ERR_OVERTEMP)
-		return;
-
-	e_crit(drv, "%s\n", ixgbe_overheat_msg);
+	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
+	if (overtemp)
+		e_crit(drv, "%s\n", ixgbe_overheat_msg);
 }
 
 static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index ca31638c6fb8..343c3ca9b1c9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
  **/
 s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 {
-	u32 i;
-	u16 ctrl = 0;
 	s32 status = 0;
+	bool overtemp;
+	u16 ctrl = 0;
+	u32 i;
 
 	if (hw->phy.type == ixgbe_phy_unknown)
 		status = ixgbe_identify_phy_generic(hw);
@@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 		return status;
 
 	/* Don't reset PHY if it's shut down due to overtemp. */
-	if (!hw->phy.reset_if_overtemp &&
-	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
+	overtemp = hw->phy.ops.check_overtemp(hw);
+	if (!hw->phy.reset_if_overtemp && overtemp)
 		return 0;
 
 	/* Blocked by MNG FW so bail */
@@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
  *
  *  Checks if the LASI temp alarm status was triggered due to overtemp
  **/
-s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
+bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
 {
 	u16 phy_data = 0;
+	u32 status;
 
 	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
-		return 0;
+		return false;
 
 	/* Check that the LASI temp alarm status was triggered */
-	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
-			     MDIO_MMD_PMAPMD, &phy_data);
+	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
+				      MDIO_MMD_PMAPMD, &phy_data);
+	if (status)
+		return false;
 
-	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
-		return 0;
+	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
+		return true;
 
-	return IXGBE_ERR_OVERTEMP;
+	return false;
 }
 
 /** ixgbe_set_copper_phy_power - Control power for copper phy
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index 6544c4539c0d..ef72729d7c93 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
 s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 					u16 *list_offset,
 					u16 *data_offset);
-s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
+bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
 s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
 				u8 dev_addr, u8 *data);
 s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 2b00db92b08f..91c9ecca4cb5 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
 	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
 	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
 	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
-	s32 (*check_overtemp)(struct ixgbe_hw *);
+	bool (*check_overtemp)(struct ixgbe_hw *);
 	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
 	s32 (*enter_lplu)(struct ixgbe_hw *);
-	s32 (*handle_lasi)(struct ixgbe_hw *hw);
+	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
 	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
 				      u8 *value);
 	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index b3509b617a4e..59dd38dd8248 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
 	if (rc)
 		return rc;
+
 	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
-		return IXGBE_ERR_OVERTEMP;
+		return -EIO;
+
 	return 0;
 }
 
@@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
  * @hw: pointer to hardware structure
  * @lsc: pointer to boolean flag which indicates whether external Base T
  *	 PHY interrupt is lsc
+ * @is_overtemp: indicate whether an overtemp event encountered
  *
  * Determime if external Base T PHY interrupt cause is high temperature
  * failure alarm or link status change.
- *
- * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
- * failure alarm, else return PHY access status.
  **/
-static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
+static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
+				       bool *is_overtemp)
 {
 	u32 status;
 	u16 reg;
 
+	if (!hw || !lsc || !is_overtemp)
+		return -EINVAL;
+
+	*is_overtemp = false;
 	*lsc = false;
 
 	/* Vendor alarm triggered */
@@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
 		/* power down the PHY in case the PHY FW didn't already */
 		ixgbe_set_copper_phy_power(hw, false);
-		return IXGBE_ERR_OVERTEMP;
+		*is_overtemp = true;
+		return -EIO;
 	}
 	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
 		/*  device fault alarm triggered */
@@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
 		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
 			/* power down the PHY in case the PHY FW didn't */
 			ixgbe_set_copper_phy_power(hw, false);
-			return IXGBE_ERR_OVERTEMP;
+			*is_overtemp = true;
+			return -EIO;
 		}
 	}
 
@@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
  **/
 static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
 {
+	bool lsc, overtemp;
 	u32 status;
 	u16 reg;
-	bool lsc;
 
 	/* Clear interrupt flags */
-	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
+	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
 
 	/* Enable link status change alarm */
 
@@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
 /**
  * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
  * @hw: pointer to hardware structure
+ * @is_overtemp: indicate whether an overtemp event encountered
  *
  * Handle external Base T PHY interrupt. If high temperature
  * failure alarm then return error, else if link status change
  * then setup internal/external PHY link
- *
- * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
- * failure alarm, else return PHY access status.
  **/
-static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
+static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
+					  bool *is_overtemp)
 {
 	struct ixgbe_phy_info *phy = &hw->phy;
 	bool lsc;
 	u32 status;
 
-	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
+	if (!hw || !is_overtemp)
+		return -EINVAL;
+
+	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
 	if (status)
 		return status;
 
@@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
  * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
  * @hw: pointer to hardware structure
  */
-static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
+static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
 {
 	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
 	s32 rc;
 
 	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
 	if (rc)
-		return rc;
+		return false;
 
 	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
 		ixgbe_shutdown_fw_phy(hw);
-		return IXGBE_ERR_OVERTEMP;
+		return true;
 	}
-	return 0;
+	return false;
 }
 
 /**
-- 
2.31.1

Re: [Intel-wired-lan] [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Przemek Kitszel]

On 12/12/23 11:46, Jedrzej Jagielski wrote:
> Currently ixgbe driver is notified of overheating events
> via internal IXGBE_ERR_OVERTEMP error code.
> 
> Change the approach for handle_lasi() to use freshly introduced
> is_overtemp function parameter which set when such event occurs.
> Change check_overtemp() to bool and return true if overtemp
> event occurs.
> 
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: change aproach to use additional function parameter to notify when overheat
> v4: change check_overtemp to bool
> 
> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> ---
>   drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>   drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>   drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>   drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>   drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>   5 files changed, 54 insertions(+), 42 deletions(-)

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>

_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

Re: [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Przemek Kitszel]

On 12/12/23 11:46, Jedrzej Jagielski wrote:
> Currently ixgbe driver is notified of overheating events
> via internal IXGBE_ERR_OVERTEMP error code.
> 
> Change the approach for handle_lasi() to use freshly introduced
> is_overtemp function parameter which set when such event occurs.
> Change check_overtemp() to bool and return true if overtemp
> event occurs.
> 
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: change aproach to use additional function parameter to notify when overheat
> v4: change check_overtemp to bool
> 
> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> ---
>   drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>   drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>   drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>   drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>   drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>   5 files changed, 54 insertions(+), 42 deletions(-)

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>

Re: [Intel-wired-lan] [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Simon Horman]

On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
> Currently ixgbe driver is notified of overheating events
> via internal IXGBE_ERR_OVERTEMP error code.
> 
> Change the approach for handle_lasi() to use freshly introduced
> is_overtemp function parameter which set when such event occurs.
> Change check_overtemp() to bool and return true if overtemp
> event occurs.
> 
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: change aproach to use additional function parameter to notify when overheat
> v4: change check_overtemp to bool
> 
> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> ---

Hi Jedrzej,

I like where this patch-set is going.
Please find some feedback from my side inline.

>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>  5 files changed, 54 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 227415d61efc..9bff614788a2 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>  {
>  	struct ixgbe_hw *hw = &adapter->hw;
>  	u32 eicr = adapter->interrupt_event;
> -	s32 rc;
> +	bool overtemp;
>  
>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
>  		return;
> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>  		}
>  
>  		/* Check if this is not due to overtemp */
> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
> +		overtemp = hw->phy.ops.check_overtemp(hw);
> +		if (!overtemp)
>  			return;

I like the readability of the above, but FWIIW, I think it could
also be slightly more compactly written as (completely untested!):

		if (!hw->phy.ops.check_overtemp(hw))
			return;

>  
>  		break;
>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
> -		rc = hw->phy.ops.check_overtemp(hw);
> -		if (rc != IXGBE_ERR_OVERTEMP)
> +		overtemp = hw->phy.ops.check_overtemp(hw);
> +		if (!overtemp)
>  			return;
>  		break;
>  	default:
> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>  {
>  	struct ixgbe_hw *hw = &adapter->hw;
> -	u32 status;
> +	bool overtemp;
>  
>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
>  		return;
> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>  	if (!hw->phy.ops.handle_lasi)
>  		return;
>  
> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
> -	if (status != IXGBE_ERR_OVERTEMP)
> -		return;
> -
> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);

Unless I am mistaken, the above can return an error. Should it be checked?

Or alternatively, as this seems to be the only call-site,
could handle_lasi() return overtemp as a bool?

> +	if (overtemp)
> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
>  }
>  
>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> index ca31638c6fb8..343c3ca9b1c9 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
>   **/
>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>  {
> -	u32 i;
> -	u16 ctrl = 0;
>  	s32 status = 0;
> +	bool overtemp;
> +	u16 ctrl = 0;
> +	u32 i;
>  
>  	if (hw->phy.type == ixgbe_phy_unknown)
>  		status = ixgbe_identify_phy_generic(hw);
> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>  		return status;
>  
>  	/* Don't reset PHY if it's shut down due to overtemp. */
> -	if (!hw->phy.reset_if_overtemp &&
> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
> +	overtemp = hw->phy.ops.check_overtemp(hw);
> +	if (!hw->phy.reset_if_overtemp && overtemp)
>  		return 0;

Previously check_overtemp() would only be called if reset_if_overtemp was
false. Now it is called unconditionally. I'm not sure if it matters, but
the check for reset_if_overtemp may have avoided some logic, including a
call to hw->phy.ops.read_reg() in some cases.

I wonder if it would be nicer to go back to the previous logic.
(completely untested!)

	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
		return 0;

>  
>  	/* Blocked by MNG FW so bail */
> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
>   *
>   *  Checks if the LASI temp alarm status was triggered due to overtemp
>   **/
> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>  {
>  	u16 phy_data = 0;
> +	u32 status;
>  
>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
> -		return 0;
> +		return false;
>  
>  	/* Check that the LASI temp alarm status was triggered */
> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> -			     MDIO_MMD_PMAPMD, &phy_data);
> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> +				      MDIO_MMD_PMAPMD, &phy_data);
> +	if (status)
> +		return false;
>  
> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
> -		return 0;
> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> +		return true;
>  
> -	return IXGBE_ERR_OVERTEMP;
> +	return false;

Maybe (completely untested!):

	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)

>  }
>  
>  /** ixgbe_set_copper_phy_power - Control power for copper phy
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> index 6544c4539c0d..ef72729d7c93 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
>  					u16 *list_offset,
>  					u16 *data_offset);
> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
>  				u8 dev_addr, u8 *data);
>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> index 2b00db92b08f..91c9ecca4cb5 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
> -	s32 (*check_overtemp)(struct ixgbe_hw *);
> +	bool (*check_overtemp)(struct ixgbe_hw *);
>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
>  	s32 (*enter_lplu)(struct ixgbe_hw *);
> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);

I'm not sure of the history of this, or the nature of the other callbacks,
but I think that usually int is used as the return type when standard error
numbers are returned. I realise that is not strictly related to this patch,
maybe it could be addressed at some point?

>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>  				      u8 *value);
>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> index b3509b617a4e..59dd38dd8248 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
>  	if (rc)
>  		return rc;
> +
>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
> -		return IXGBE_ERR_OVERTEMP;
> +		return -EIO;
> +
>  	return 0;
>  }
>  
> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
>   * @hw: pointer to hardware structure
>   * @lsc: pointer to boolean flag which indicates whether external Base T
>   *	 PHY interrupt is lsc
> + * @is_overtemp: indicate whether an overtemp event encountered
>   *
>   * Determime if external Base T PHY interrupt cause is high temperature
>   * failure alarm or link status change.
> - *
> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> - * failure alarm, else return PHY access status.
>   **/
> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
> +				       bool *is_overtemp)
>  {
>  	u32 status;
>  	u16 reg;
>  
> +	if (!hw || !lsc || !is_overtemp)
> +		return -EINVAL;

I don't think this kind of defensive programming is appropriate
in a kernel driver.

And unless I am mistaken, caller's don't check the return value of this
function (or propagate to a caller which doesn't check it).

> +
> +	*is_overtemp = false;
>  	*lsc = false;
>  
>  	/* Vendor alarm triggered */
> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
>  		/* power down the PHY in case the PHY FW didn't already */
>  		ixgbe_set_copper_phy_power(hw, false);
> -		return IXGBE_ERR_OVERTEMP;
> +		*is_overtemp = true;
> +		return -EIO;
>  	}
>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
>  		/*  device fault alarm triggered */
> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
>  			/* power down the PHY in case the PHY FW didn't */
>  			ixgbe_set_copper_phy_power(hw, false);
> -			return IXGBE_ERR_OVERTEMP;
> +			*is_overtemp = true;
> +			return -EIO;
>  		}
>  	}
>  
> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>   **/
>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>  {
> +	bool lsc, overtemp;
>  	u32 status;
>  	u16 reg;
> -	bool lsc;
>  
>  	/* Clear interrupt flags */
> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
>  
>  	/* Enable link status change alarm */
>  
> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>  /**
>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
>   * @hw: pointer to hardware structure
> + * @is_overtemp: indicate whether an overtemp event encountered
>   *
>   * Handle external Base T PHY interrupt. If high temperature
>   * failure alarm then return error, else if link status change
>   * then setup internal/external PHY link
> - *
> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> - * failure alarm, else return PHY access status.
>   **/
> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
> +					  bool *is_overtemp)
>  {
>  	struct ixgbe_phy_info *phy = &hw->phy;
>  	bool lsc;
>  	u32 status;
>  
> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> +	if (!hw || !is_overtemp)
> +		return -EINVAL;

Ditto.

> +
> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
>  	if (status)
>  		return status;
>  
> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
>   * @hw: pointer to hardware structure
>   */
> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>  {
>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
>  	s32 rc;
>  
>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
>  	if (rc)
> -		return rc;
> +		return false;
>  
>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
>  		ixgbe_shutdown_fw_phy(hw);
> -		return IXGBE_ERR_OVERTEMP;
> +		return true;
>  	}
> -	return 0;
> +	return false;
>  }
>  
>  /**
> -- 
> 2.31.1
> 
_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

Re: [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Simon Horman]

On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
> Currently ixgbe driver is notified of overheating events
> via internal IXGBE_ERR_OVERTEMP error code.
> 
> Change the approach for handle_lasi() to use freshly introduced
> is_overtemp function parameter which set when such event occurs.
> Change check_overtemp() to bool and return true if overtemp
> event occurs.
> 
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: change aproach to use additional function parameter to notify when overheat
> v4: change check_overtemp to bool
> 
> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> ---

Hi Jedrzej,

I like where this patch-set is going.
Please find some feedback from my side inline.

>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>  5 files changed, 54 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 227415d61efc..9bff614788a2 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>  {
>  	struct ixgbe_hw *hw = &adapter->hw;
>  	u32 eicr = adapter->interrupt_event;
> -	s32 rc;
> +	bool overtemp;
>  
>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
>  		return;
> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>  		}
>  
>  		/* Check if this is not due to overtemp */
> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
> +		overtemp = hw->phy.ops.check_overtemp(hw);
> +		if (!overtemp)
>  			return;

I like the readability of the above, but FWIIW, I think it could
also be slightly more compactly written as (completely untested!):

		if (!hw->phy.ops.check_overtemp(hw))
			return;

>  
>  		break;
>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
> -		rc = hw->phy.ops.check_overtemp(hw);
> -		if (rc != IXGBE_ERR_OVERTEMP)
> +		overtemp = hw->phy.ops.check_overtemp(hw);
> +		if (!overtemp)
>  			return;
>  		break;
>  	default:
> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>  {
>  	struct ixgbe_hw *hw = &adapter->hw;
> -	u32 status;
> +	bool overtemp;
>  
>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
>  		return;
> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>  	if (!hw->phy.ops.handle_lasi)
>  		return;
>  
> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
> -	if (status != IXGBE_ERR_OVERTEMP)
> -		return;
> -
> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);

Unless I am mistaken, the above can return an error. Should it be checked?

Or alternatively, as this seems to be the only call-site,
could handle_lasi() return overtemp as a bool?

> +	if (overtemp)
> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
>  }
>  
>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> index ca31638c6fb8..343c3ca9b1c9 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
>   **/
>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>  {
> -	u32 i;
> -	u16 ctrl = 0;
>  	s32 status = 0;
> +	bool overtemp;
> +	u16 ctrl = 0;
> +	u32 i;
>  
>  	if (hw->phy.type == ixgbe_phy_unknown)
>  		status = ixgbe_identify_phy_generic(hw);
> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>  		return status;
>  
>  	/* Don't reset PHY if it's shut down due to overtemp. */
> -	if (!hw->phy.reset_if_overtemp &&
> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
> +	overtemp = hw->phy.ops.check_overtemp(hw);
> +	if (!hw->phy.reset_if_overtemp && overtemp)
>  		return 0;

Previously check_overtemp() would only be called if reset_if_overtemp was
false. Now it is called unconditionally. I'm not sure if it matters, but
the check for reset_if_overtemp may have avoided some logic, including a
call to hw->phy.ops.read_reg() in some cases.

I wonder if it would be nicer to go back to the previous logic.
(completely untested!)

	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
		return 0;

>  
>  	/* Blocked by MNG FW so bail */
> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
>   *
>   *  Checks if the LASI temp alarm status was triggered due to overtemp
>   **/
> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>  {
>  	u16 phy_data = 0;
> +	u32 status;
>  
>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
> -		return 0;
> +		return false;
>  
>  	/* Check that the LASI temp alarm status was triggered */
> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> -			     MDIO_MMD_PMAPMD, &phy_data);
> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> +				      MDIO_MMD_PMAPMD, &phy_data);
> +	if (status)
> +		return false;
>  
> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
> -		return 0;
> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> +		return true;
>  
> -	return IXGBE_ERR_OVERTEMP;
> +	return false;

Maybe (completely untested!):

	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)

>  }
>  
>  /** ixgbe_set_copper_phy_power - Control power for copper phy
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> index 6544c4539c0d..ef72729d7c93 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
>  					u16 *list_offset,
>  					u16 *data_offset);
> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
>  				u8 dev_addr, u8 *data);
>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> index 2b00db92b08f..91c9ecca4cb5 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
> -	s32 (*check_overtemp)(struct ixgbe_hw *);
> +	bool (*check_overtemp)(struct ixgbe_hw *);
>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
>  	s32 (*enter_lplu)(struct ixgbe_hw *);
> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);

I'm not sure of the history of this, or the nature of the other callbacks,
but I think that usually int is used as the return type when standard error
numbers are returned. I realise that is not strictly related to this patch,
maybe it could be addressed at some point?

>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>  				      u8 *value);
>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> index b3509b617a4e..59dd38dd8248 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
>  	if (rc)
>  		return rc;
> +
>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
> -		return IXGBE_ERR_OVERTEMP;
> +		return -EIO;
> +
>  	return 0;
>  }
>  
> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
>   * @hw: pointer to hardware structure
>   * @lsc: pointer to boolean flag which indicates whether external Base T
>   *	 PHY interrupt is lsc
> + * @is_overtemp: indicate whether an overtemp event encountered
>   *
>   * Determime if external Base T PHY interrupt cause is high temperature
>   * failure alarm or link status change.
> - *
> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> - * failure alarm, else return PHY access status.
>   **/
> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
> +				       bool *is_overtemp)
>  {
>  	u32 status;
>  	u16 reg;
>  
> +	if (!hw || !lsc || !is_overtemp)
> +		return -EINVAL;

I don't think this kind of defensive programming is appropriate
in a kernel driver.

And unless I am mistaken, caller's don't check the return value of this
function (or propagate to a caller which doesn't check it).

> +
> +	*is_overtemp = false;
>  	*lsc = false;
>  
>  	/* Vendor alarm triggered */
> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
>  		/* power down the PHY in case the PHY FW didn't already */
>  		ixgbe_set_copper_phy_power(hw, false);
> -		return IXGBE_ERR_OVERTEMP;
> +		*is_overtemp = true;
> +		return -EIO;
>  	}
>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
>  		/*  device fault alarm triggered */
> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
>  			/* power down the PHY in case the PHY FW didn't */
>  			ixgbe_set_copper_phy_power(hw, false);
> -			return IXGBE_ERR_OVERTEMP;
> +			*is_overtemp = true;
> +			return -EIO;
>  		}
>  	}
>  
> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>   **/
>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>  {
> +	bool lsc, overtemp;
>  	u32 status;
>  	u16 reg;
> -	bool lsc;
>  
>  	/* Clear interrupt flags */
> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
>  
>  	/* Enable link status change alarm */
>  
> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>  /**
>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
>   * @hw: pointer to hardware structure
> + * @is_overtemp: indicate whether an overtemp event encountered
>   *
>   * Handle external Base T PHY interrupt. If high temperature
>   * failure alarm then return error, else if link status change
>   * then setup internal/external PHY link
> - *
> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> - * failure alarm, else return PHY access status.
>   **/
> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
> +					  bool *is_overtemp)
>  {
>  	struct ixgbe_phy_info *phy = &hw->phy;
>  	bool lsc;
>  	u32 status;
>  
> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> +	if (!hw || !is_overtemp)
> +		return -EINVAL;

Ditto.

> +
> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
>  	if (status)
>  		return status;
>  
> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
>   * @hw: pointer to hardware structure
>   */
> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>  {
>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
>  	s32 rc;
>  
>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
>  	if (rc)
> -		return rc;
> +		return false;
>  
>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
>  		ixgbe_shutdown_fw_phy(hw);
> -		return IXGBE_ERR_OVERTEMP;
> +		return true;
>  	}
> -	return 0;
> +	return false;
>  }
>  
>  /**
> -- 
> 2.31.1
> 

Re: [Intel-wired-lan] [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Jagielski, Jedrzej]

From: Simon Horman <horms@kernel.org> 
Sent: Thursday, December 14, 2023 10:56 AM

>On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
>> Currently ixgbe driver is notified of overheating events
>> via internal IXGBE_ERR_OVERTEMP error code.
>> 
>> Change the approach for handle_lasi() to use freshly introduced
>> is_overtemp function parameter which set when such event occurs.
>> Change check_overtemp() to bool and return true if overtemp
>> event occurs.
>> 
>> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
>> ---
>> v2: change aproach to use additional function parameter to notify when overheat
>> v4: change check_overtemp to bool
>> 
>> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
>> ---
>
>Hi Jedrzej,
>
>I like where this patch-set is going.
>Please find some feedback from my side inline.

Hi Simon
thank you for the review.

>
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>>  5 files changed, 54 insertions(+), 42 deletions(-)
>> 
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> index 227415d61efc..9bff614788a2 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>>  {
>>  	struct ixgbe_hw *hw = &adapter->hw;
>>  	u32 eicr = adapter->interrupt_event;
>> -	s32 rc;
>> +	bool overtemp;
>>  
>>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
>>  		return;
>> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>>  		}
>>  
>>  		/* Check if this is not due to overtemp */
>> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
>> +		overtemp = hw->phy.ops.check_overtemp(hw);
>> +		if (!overtemp)
>>  			return;
>
>I like the readability of the above, but FWIIW, I think it could
>also be slightly more compactly written as (completely untested!):
>
>		if (!hw->phy.ops.check_overtemp(hw))
>			return;

I decided to do that this way in order to improve readability,
but sure it can be changed.

>
>>  
>>  		break;
>>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
>>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
>> -		rc = hw->phy.ops.check_overtemp(hw);
>> -		if (rc != IXGBE_ERR_OVERTEMP)
>> +		overtemp = hw->phy.ops.check_overtemp(hw);
>> +		if (!overtemp)
>>  			return;
>>  		break;
>>  	default:
>> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
>>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>>  {
>>  	struct ixgbe_hw *hw = &adapter->hw;
>> -	u32 status;
>> +	bool overtemp;
>>  
>>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
>>  		return;
>> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>>  	if (!hw->phy.ops.handle_lasi)
>>  		return;
>>  
>> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
>> -	if (status != IXGBE_ERR_OVERTEMP)
>> -		return;
>> -
>> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
>> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
>
>Unless I am mistaken, the above can return an error. Should it be checked?

Since we are inside a void function we don't have many options to handle that.

I could be:
	err = hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
	if (err)
		return;
		
	if (!overtemp)
		return;
		
So i decided to shorten it just to 

	if (overtemp)
		...
		
Some solution instead of returning here is to log warning when error
encountered.		

>
>Or alternatively, as this seems to be the only call-site,
>could handle_lasi() return overtemp as a bool?

Actually handle_lasi() was designed to handle not only overtemp events
but also link status ones. When changing it to bool it would be
hard to differentiate them - then true only for overtemp case and false
when link change or any error? I am not sure if this is a good direction.

>
>> +	if (overtemp)
>> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
>>  }
>>  
>>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> index ca31638c6fb8..343c3ca9b1c9 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
>>   **/
>>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>>  {
>> -	u32 i;
>> -	u16 ctrl = 0;
>>  	s32 status = 0;
>> +	bool overtemp;
>> +	u16 ctrl = 0;
>> +	u32 i;
>>  
>>  	if (hw->phy.type == ixgbe_phy_unknown)
>>  		status = ixgbe_identify_phy_generic(hw);
>> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>>  		return status;
>>  
>>  	/* Don't reset PHY if it's shut down due to overtemp. */
>> -	if (!hw->phy.reset_if_overtemp &&
>> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
>> +	overtemp = hw->phy.ops.check_overtemp(hw);
>> +	if (!hw->phy.reset_if_overtemp && overtemp)
>>  		return 0;
>
>Previously check_overtemp() would only be called if reset_if_overtemp was
>false. Now it is called unconditionally. I'm not sure if it matters, but
>the check for reset_if_overtemp may have avoided some logic, including a
>call to hw->phy.ops.read_reg() in some cases.

Sure, the previous approach seems to be more efficient. Will be restored.

>
>I wonder if it would be nicer to go back to the previous logic.
>(completely untested!)
>
>	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
>		return 0;
>
>>  
>>  	/* Blocked by MNG FW so bail */
>> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
>>   *
>>   *  Checks if the LASI temp alarm status was triggered due to overtemp
>>   **/
>> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>>  {
>>  	u16 phy_data = 0;
>> +	u32 status;
>>  
>>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
>> -		return 0;
>> +		return false;
>>  
>>  	/* Check that the LASI temp alarm status was triggered */
>> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
>> -			     MDIO_MMD_PMAPMD, &phy_data);
>> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
>> +				      MDIO_MMD_PMAPMD, &phy_data);
>> +	if (status)
>> +		return false;
>>  
>> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
>> -		return 0;
>> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
>> +		return true;
>>  
>> -	return IXGBE_ERR_OVERTEMP;
>> +	return false;
>
>Maybe (completely untested!):

I like it.

>
>	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
>
>>  }
>>  
>>  /** ixgbe_set_copper_phy_power - Control power for copper phy
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> index 6544c4539c0d..ef72729d7c93 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
>>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
>>  					u16 *list_offset,
>>  					u16 *data_offset);
>> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
>>  				u8 dev_addr, u8 *data);
>>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> index 2b00db92b08f..91c9ecca4cb5 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
>>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
>>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
>>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
>> -	s32 (*check_overtemp)(struct ixgbe_hw *);
>> +	bool (*check_overtemp)(struct ixgbe_hw *);
>>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
>>  	s32 (*enter_lplu)(struct ixgbe_hw *);
>> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
>> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
>
>I'm not sure of the history of this, or the nature of the other callbacks,
>but I think that usually int is used as the return type when standard error
>numbers are returned. I realise that is not strictly related to this patch,
>maybe it could be addressed at some point?

Sure, so it will be scheduled for the future.

>
>>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>>  				      u8 *value);
>>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> index b3509b617a4e..59dd38dd8248 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
>>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
>>  	if (rc)
>>  		return rc;
>> +
>>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
>> -		return IXGBE_ERR_OVERTEMP;
>> +		return -EIO;
>> +
>>  	return 0;
>>  }
>>  
>> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
>>   * @hw: pointer to hardware structure
>>   * @lsc: pointer to boolean flag which indicates whether external Base T
>>   *	 PHY interrupt is lsc
>> + * @is_overtemp: indicate whether an overtemp event encountered
>>   *
>>   * Determime if external Base T PHY interrupt cause is high temperature
>>   * failure alarm or link status change.
>> - *
>> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
>> - * failure alarm, else return PHY access status.
>>   **/
>> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
>> +				       bool *is_overtemp)
>>  {
>>  	u32 status;
>>  	u16 reg;
>>  
>> +	if (!hw || !lsc || !is_overtemp)
>> +		return -EINVAL;
>
>I don't think this kind of defensive programming is appropriate
>in a kernel driver.

Ok, i wasn't sure. Just wanted to ensure we won't use is_overtemp if NULL.

>
>And unless I am mistaken, caller's don't check the return value of this
>function (or propagate to a caller which doesn't check it).

ixgbe_handle_lasi_ext_t_x550em() which is calling this function checks its
returned status.

>
>> +
>> +	*is_overtemp = false;
>>  	*lsc = false;
>>  
>>  	/* Vendor alarm triggered */
>> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
>>  		/* power down the PHY in case the PHY FW didn't already */
>>  		ixgbe_set_copper_phy_power(hw, false);
>> -		return IXGBE_ERR_OVERTEMP;
>> +		*is_overtemp = true;
>> +		return -EIO;
>>  	}
>>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
>>  		/*  device fault alarm triggered */
>> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
>>  			/* power down the PHY in case the PHY FW didn't */
>>  			ixgbe_set_copper_phy_power(hw, false);
>> -			return IXGBE_ERR_OVERTEMP;
>> +			*is_overtemp = true;
>> +			return -EIO;
>>  		}
>>  	}
>>  
>> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>   **/
>>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>>  {
>> +	bool lsc, overtemp;
>>  	u32 status;
>>  	u16 reg;
>> -	bool lsc;
>>  
>>  	/* Clear interrupt flags */
>> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
>> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
>>  
>>  	/* Enable link status change alarm */
>>  
>> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>>  /**
>>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
>>   * @hw: pointer to hardware structure
>> + * @is_overtemp: indicate whether an overtemp event encountered
>>   *
>>   * Handle external Base T PHY interrupt. If high temperature
>>   * failure alarm then return error, else if link status change
>>   * then setup internal/external PHY link
>> - *
>> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
>> - * failure alarm, else return PHY access status.
>>   **/
>> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
>> +					  bool *is_overtemp)
>>  {
>>  	struct ixgbe_phy_info *phy = &hw->phy;
>>  	bool lsc;
>>  	u32 status;
>>  
>> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
>> +	if (!hw || !is_overtemp)
>> +		return -EINVAL;
>
>Ditto.
>
>> +
>> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
>>  	if (status)
>>  		return status;
>>  
>> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
>>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
>>   * @hw: pointer to hardware structure
>>   */
>> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>>  {
>>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
>>  	s32 rc;
>>  
>>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
>>  	if (rc)
>> -		return rc;
>> +		return false;
>>  
>>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
>>  		ixgbe_shutdown_fw_phy(hw);
>> -		return IXGBE_ERR_OVERTEMP;
>> +		return true;
>>  	}
>> -	return 0;
>> +	return false;
>>  }
>>  
>>  /**
>> -- 
>> 2.31.1
>>
_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

RE: [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Jagielski, Jedrzej]

From: Simon Horman <horms@kernel.org> 
Sent: Thursday, December 14, 2023 10:56 AM

>On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
>> Currently ixgbe driver is notified of overheating events
>> via internal IXGBE_ERR_OVERTEMP error code.
>> 
>> Change the approach for handle_lasi() to use freshly introduced
>> is_overtemp function parameter which set when such event occurs.
>> Change check_overtemp() to bool and return true if overtemp
>> event occurs.
>> 
>> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
>> ---
>> v2: change aproach to use additional function parameter to notify when overheat
>> v4: change check_overtemp to bool
>> 
>> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
>> ---
>
>Hi Jedrzej,
>
>I like where this patch-set is going.
>Please find some feedback from my side inline.

Hi Simon
thank you for the review.

>
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
>>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
>>  5 files changed, 54 insertions(+), 42 deletions(-)
>> 
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> index 227415d61efc..9bff614788a2 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
>> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>>  {
>>  	struct ixgbe_hw *hw = &adapter->hw;
>>  	u32 eicr = adapter->interrupt_event;
>> -	s32 rc;
>> +	bool overtemp;
>>  
>>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
>>  		return;
>> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
>>  		}
>>  
>>  		/* Check if this is not due to overtemp */
>> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
>> +		overtemp = hw->phy.ops.check_overtemp(hw);
>> +		if (!overtemp)
>>  			return;
>
>I like the readability of the above, but FWIIW, I think it could
>also be slightly more compactly written as (completely untested!):
>
>		if (!hw->phy.ops.check_overtemp(hw))
>			return;

I decided to do that this way in order to improve readability,
but sure it can be changed.

>
>>  
>>  		break;
>>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
>>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
>> -		rc = hw->phy.ops.check_overtemp(hw);
>> -		if (rc != IXGBE_ERR_OVERTEMP)
>> +		overtemp = hw->phy.ops.check_overtemp(hw);
>> +		if (!overtemp)
>>  			return;
>>  		break;
>>  	default:
>> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
>>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>>  {
>>  	struct ixgbe_hw *hw = &adapter->hw;
>> -	u32 status;
>> +	bool overtemp;
>>  
>>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
>>  		return;
>> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
>>  	if (!hw->phy.ops.handle_lasi)
>>  		return;
>>  
>> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
>> -	if (status != IXGBE_ERR_OVERTEMP)
>> -		return;
>> -
>> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
>> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
>
>Unless I am mistaken, the above can return an error. Should it be checked?

Since we are inside a void function we don't have many options to handle that.

I could be:
	err = hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
	if (err)
		return;
		
	if (!overtemp)
		return;
		
So i decided to shorten it just to 

	if (overtemp)
		...
		
Some solution instead of returning here is to log warning when error
encountered.		

>
>Or alternatively, as this seems to be the only call-site,
>could handle_lasi() return overtemp as a bool?

Actually handle_lasi() was designed to handle not only overtemp events
but also link status ones. When changing it to bool it would be
hard to differentiate them - then true only for overtemp case and false
when link change or any error? I am not sure if this is a good direction.

>
>> +	if (overtemp)
>> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
>>  }
>>  
>>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> index ca31638c6fb8..343c3ca9b1c9 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
>> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
>>   **/
>>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>>  {
>> -	u32 i;
>> -	u16 ctrl = 0;
>>  	s32 status = 0;
>> +	bool overtemp;
>> +	u16 ctrl = 0;
>> +	u32 i;
>>  
>>  	if (hw->phy.type == ixgbe_phy_unknown)
>>  		status = ixgbe_identify_phy_generic(hw);
>> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
>>  		return status;
>>  
>>  	/* Don't reset PHY if it's shut down due to overtemp. */
>> -	if (!hw->phy.reset_if_overtemp &&
>> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
>> +	overtemp = hw->phy.ops.check_overtemp(hw);
>> +	if (!hw->phy.reset_if_overtemp && overtemp)
>>  		return 0;
>
>Previously check_overtemp() would only be called if reset_if_overtemp was
>false. Now it is called unconditionally. I'm not sure if it matters, but
>the check for reset_if_overtemp may have avoided some logic, including a
>call to hw->phy.ops.read_reg() in some cases.

Sure, the previous approach seems to be more efficient. Will be restored.

>
>I wonder if it would be nicer to go back to the previous logic.
>(completely untested!)
>
>	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
>		return 0;
>
>>  
>>  	/* Blocked by MNG FW so bail */
>> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
>>   *
>>   *  Checks if the LASI temp alarm status was triggered due to overtemp
>>   **/
>> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
>>  {
>>  	u16 phy_data = 0;
>> +	u32 status;
>>  
>>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
>> -		return 0;
>> +		return false;
>>  
>>  	/* Check that the LASI temp alarm status was triggered */
>> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
>> -			     MDIO_MMD_PMAPMD, &phy_data);
>> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
>> +				      MDIO_MMD_PMAPMD, &phy_data);
>> +	if (status)
>> +		return false;
>>  
>> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
>> -		return 0;
>> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
>> +		return true;
>>  
>> -	return IXGBE_ERR_OVERTEMP;
>> +	return false;
>
>Maybe (completely untested!):

I like it.

>
>	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
>
>>  }
>>  
>>  /** ixgbe_set_copper_phy_power - Control power for copper phy
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> index 6544c4539c0d..ef72729d7c93 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
>> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
>>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
>>  					u16 *list_offset,
>>  					u16 *data_offset);
>> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
>>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
>>  				u8 dev_addr, u8 *data);
>>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> index 2b00db92b08f..91c9ecca4cb5 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
>> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
>>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
>>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
>>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
>> -	s32 (*check_overtemp)(struct ixgbe_hw *);
>> +	bool (*check_overtemp)(struct ixgbe_hw *);
>>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
>>  	s32 (*enter_lplu)(struct ixgbe_hw *);
>> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
>> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
>
>I'm not sure of the history of this, or the nature of the other callbacks,
>but I think that usually int is used as the return type when standard error
>numbers are returned. I realise that is not strictly related to this patch,
>maybe it could be addressed at some point?

Sure, so it will be scheduled for the future.

>
>>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>>  				      u8 *value);
>>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
>> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> index b3509b617a4e..59dd38dd8248 100644
>> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
>> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
>>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
>>  	if (rc)
>>  		return rc;
>> +
>>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
>> -		return IXGBE_ERR_OVERTEMP;
>> +		return -EIO;
>> +
>>  	return 0;
>>  }
>>  
>> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
>>   * @hw: pointer to hardware structure
>>   * @lsc: pointer to boolean flag which indicates whether external Base T
>>   *	 PHY interrupt is lsc
>> + * @is_overtemp: indicate whether an overtemp event encountered
>>   *
>>   * Determime if external Base T PHY interrupt cause is high temperature
>>   * failure alarm or link status change.
>> - *
>> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
>> - * failure alarm, else return PHY access status.
>>   **/
>> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
>> +				       bool *is_overtemp)
>>  {
>>  	u32 status;
>>  	u16 reg;
>>  
>> +	if (!hw || !lsc || !is_overtemp)
>> +		return -EINVAL;
>
>I don't think this kind of defensive programming is appropriate
>in a kernel driver.

Ok, i wasn't sure. Just wanted to ensure we won't use is_overtemp if NULL.

>
>And unless I am mistaken, caller's don't check the return value of this
>function (or propagate to a caller which doesn't check it).

ixgbe_handle_lasi_ext_t_x550em() which is calling this function checks its
returned status.

>
>> +
>> +	*is_overtemp = false;
>>  	*lsc = false;
>>  
>>  	/* Vendor alarm triggered */
>> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
>>  		/* power down the PHY in case the PHY FW didn't already */
>>  		ixgbe_set_copper_phy_power(hw, false);
>> -		return IXGBE_ERR_OVERTEMP;
>> +		*is_overtemp = true;
>> +		return -EIO;
>>  	}
>>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
>>  		/*  device fault alarm triggered */
>> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
>>  			/* power down the PHY in case the PHY FW didn't */
>>  			ixgbe_set_copper_phy_power(hw, false);
>> -			return IXGBE_ERR_OVERTEMP;
>> +			*is_overtemp = true;
>> +			return -EIO;
>>  		}
>>  	}
>>  
>> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
>>   **/
>>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>>  {
>> +	bool lsc, overtemp;
>>  	u32 status;
>>  	u16 reg;
>> -	bool lsc;
>>  
>>  	/* Clear interrupt flags */
>> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
>> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
>>  
>>  	/* Enable link status change alarm */
>>  
>> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>>  /**
>>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
>>   * @hw: pointer to hardware structure
>> + * @is_overtemp: indicate whether an overtemp event encountered
>>   *
>>   * Handle external Base T PHY interrupt. If high temperature
>>   * failure alarm then return error, else if link status change
>>   * then setup internal/external PHY link
>> - *
>> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
>> - * failure alarm, else return PHY access status.
>>   **/
>> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
>> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
>> +					  bool *is_overtemp)
>>  {
>>  	struct ixgbe_phy_info *phy = &hw->phy;
>>  	bool lsc;
>>  	u32 status;
>>  
>> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
>> +	if (!hw || !is_overtemp)
>> +		return -EINVAL;
>
>Ditto.
>
>> +
>> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
>>  	if (status)
>>  		return status;
>>  
>> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
>>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
>>   * @hw: pointer to hardware structure
>>   */
>> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
>>  {
>>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
>>  	s32 rc;
>>  
>>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
>>  	if (rc)
>> -		return rc;
>> +		return false;
>>  
>>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
>>  		ixgbe_shutdown_fw_phy(hw);
>> -		return IXGBE_ERR_OVERTEMP;
>> +		return true;
>>  	}
>> -	return 0;
>> +	return false;
>>  }
>>  
>>  /**
>> -- 
>> 2.31.1
>>

Re: [Intel-wired-lan] [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Simon Horman]

On Thu, Dec 14, 2023 at 01:37:12PM +0000, Jagielski, Jedrzej wrote:
> From: Simon Horman <horms@kernel.org> 
> Sent: Thursday, December 14, 2023 10:56 AM
> 
> >On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
> >> Currently ixgbe driver is notified of overheating events
> >> via internal IXGBE_ERR_OVERTEMP error code.
> >> 
> >> Change the approach for handle_lasi() to use freshly introduced
> >> is_overtemp function parameter which set when such event occurs.
> >> Change check_overtemp() to bool and return true if overtemp
> >> event occurs.
> >> 
> >> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> >> ---
> >> v2: change aproach to use additional function parameter to notify when overheat
> >> v4: change check_overtemp to bool
> >> 
> >> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> >> ---
> >
> >Hi Jedrzej,
> >
> >I like where this patch-set is going.
> >Please find some feedback from my side inline.
> 
> Hi Simon
> thank you for the review.
> 
> >
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
> >>  5 files changed, 54 insertions(+), 42 deletions(-)
> >> 
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> index 227415d61efc..9bff614788a2 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
> >>  {
> >>  	struct ixgbe_hw *hw = &adapter->hw;
> >>  	u32 eicr = adapter->interrupt_event;
> >> -	s32 rc;
> >> +	bool overtemp;
> >>  
> >>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
> >>  		return;
> >> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
> >>  		}
> >>  
> >>  		/* Check if this is not due to overtemp */
> >> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
> >> +		overtemp = hw->phy.ops.check_overtemp(hw);
> >> +		if (!overtemp)
> >>  			return;
> >
> >I like the readability of the above, but FWIIW, I think it could
> >also be slightly more compactly written as (completely untested!):
> >
> >		if (!hw->phy.ops.check_overtemp(hw))
> >			return;
> 
> I decided to do that this way in order to improve readability,
> but sure it can be changed.

No need, I agree the readability is good.

> 
> >
> >>  
> >>  		break;
> >>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
> >>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
> >> -		rc = hw->phy.ops.check_overtemp(hw);
> >> -		if (rc != IXGBE_ERR_OVERTEMP)
> >> +		overtemp = hw->phy.ops.check_overtemp(hw);
> >> +		if (!overtemp)
> >>  			return;
> >>  		break;
> >>  	default:
> >> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
> >>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
> >>  {
> >>  	struct ixgbe_hw *hw = &adapter->hw;
> >> -	u32 status;
> >> +	bool overtemp;
> >>  
> >>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
> >>  		return;
> >> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
> >>  	if (!hw->phy.ops.handle_lasi)
> >>  		return;
> >>  
> >> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
> >> -	if (status != IXGBE_ERR_OVERTEMP)
> >> -		return;
> >> -
> >> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
> >> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
> >
> >Unless I am mistaken, the above can return an error. Should it be checked?
> 
> Since we are inside a void function we don't have many options to handle that.
> 
> I could be:
> 	err = hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
> 	if (err)
> 		return;
> 		
> 	if (!overtemp)
> 		return;
> 		
> So i decided to shorten it just to 
> 
> 	if (overtemp)
> 		...
> 		
> Some solution instead of returning here is to log warning when error
> encountered.		
> 
> >
> >Or alternatively, as this seems to be the only call-site,
> >could handle_lasi() return overtemp as a bool?
> 
> Actually handle_lasi() was designed to handle not only overtemp events
> but also link status ones. When changing it to bool it would be
> hard to differentiate them - then true only for overtemp case and false
> when link change or any error? I am not sure if this is a good direction.

I think it would improve the flow of the code a bit,
but you are right that it's not entirely great as
the callback doesn't only handle overtemp.

At this point I think what you already have is also fine.

> 
> >
> >> +	if (overtemp)
> >> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
> >>  }
> >>  
> >>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> index ca31638c6fb8..343c3ca9b1c9 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
> >>   **/
> >>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
> >>  {
> >> -	u32 i;
> >> -	u16 ctrl = 0;
> >>  	s32 status = 0;
> >> +	bool overtemp;
> >> +	u16 ctrl = 0;
> >> +	u32 i;
> >>  
> >>  	if (hw->phy.type == ixgbe_phy_unknown)
> >>  		status = ixgbe_identify_phy_generic(hw);
> >> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
> >>  		return status;
> >>  
> >>  	/* Don't reset PHY if it's shut down due to overtemp. */
> >> -	if (!hw->phy.reset_if_overtemp &&
> >> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
> >> +	overtemp = hw->phy.ops.check_overtemp(hw);
> >> +	if (!hw->phy.reset_if_overtemp && overtemp)
> >>  		return 0;
> >
> >Previously check_overtemp() would only be called if reset_if_overtemp was
> >false. Now it is called unconditionally. I'm not sure if it matters, but
> >the check for reset_if_overtemp may have avoided some logic, including a
> >call to hw->phy.ops.read_reg() in some cases.
> 
> Sure, the previous approach seems to be more efficient. Will be restored.

Great, thanks!

> 
> >
> >I wonder if it would be nicer to go back to the previous logic.
> >(completely untested!)
> >
> >	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
> >		return 0;
> >
> >>  
> >>  	/* Blocked by MNG FW so bail */
> >> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
> >>   *
> >>   *  Checks if the LASI temp alarm status was triggered due to overtemp
> >>   **/
> >> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> >> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> >>  {
> >>  	u16 phy_data = 0;
> >> +	u32 status;
> >>  
> >>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
> >> -		return 0;
> >> +		return false;
> >>  
> >>  	/* Check that the LASI temp alarm status was triggered */
> >> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> >> -			     MDIO_MMD_PMAPMD, &phy_data);
> >> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> >> +				      MDIO_MMD_PMAPMD, &phy_data);
> >> +	if (status)
> >> +		return false;
> >>  
> >> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
> >> -		return 0;
> >> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> >> +		return true;
> >>  
> >> -	return IXGBE_ERR_OVERTEMP;
> >> +	return false;
> >
> >Maybe (completely untested!):
> 
> I like it.

:)

> 
> >
> >	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> >
> >>  }
> >>  
> >>  /** ixgbe_set_copper_phy_power - Control power for copper phy
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> index 6544c4539c0d..ef72729d7c93 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
> >>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
> >>  					u16 *list_offset,
> >>  					u16 *data_offset);
> >> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> >> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> >>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
> >>  				u8 dev_addr, u8 *data);
> >>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> index 2b00db92b08f..91c9ecca4cb5 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
> >>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
> >>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
> >>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
> >> -	s32 (*check_overtemp)(struct ixgbe_hw *);
> >> +	bool (*check_overtemp)(struct ixgbe_hw *);
> >>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
> >>  	s32 (*enter_lplu)(struct ixgbe_hw *);
> >> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
> >> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
> >
> >I'm not sure of the history of this, or the nature of the other callbacks,
> >but I think that usually int is used as the return type when standard error
> >numbers are returned. I realise that is not strictly related to this patch,
> >maybe it could be addressed at some point?
> 
> Sure, so it will be scheduled for the future.

Thanks.

> >>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> >>  				      u8 *value);
> >>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> index b3509b617a4e..59dd38dd8248 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
> >>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
> >>  	if (rc)
> >>  		return rc;
> >> +
> >>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		return -EIO;
> >> +
> >>  	return 0;
> >>  }
> >>  
> >> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
> >>   * @hw: pointer to hardware structure
> >>   * @lsc: pointer to boolean flag which indicates whether external Base T
> >>   *	 PHY interrupt is lsc
> >> + * @is_overtemp: indicate whether an overtemp event encountered
> >>   *
> >>   * Determime if external Base T PHY interrupt cause is high temperature
> >>   * failure alarm or link status change.
> >> - *
> >> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> >> - * failure alarm, else return PHY access status.
> >>   **/
> >> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
> >> +				       bool *is_overtemp)
> >>  {
> >>  	u32 status;
> >>  	u16 reg;
> >>  
> >> +	if (!hw || !lsc || !is_overtemp)
> >> +		return -EINVAL;
> >
> >I don't think this kind of defensive programming is appropriate
> >in a kernel driver.
> 
> Ok, i wasn't sure. Just wanted to ensure we won't use is_overtemp if NULL.
> 
> >
> >And unless I am mistaken, caller's don't check the return value of this
> >function (or propagate to a caller which doesn't check it).
> 
> ixgbe_handle_lasi_ext_t_x550em() which is calling this function checks its
> returned status.

In any case, the callers always pass the right arguments, and things
would blow up fairly quickly if they didn't. So I think the way
forwards is to simply drop the defensive checks.

> 
> >
> >> +
> >> +	*is_overtemp = false;
> >>  	*lsc = false;
> >>  
> >>  	/* Vendor alarm triggered */
> >> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
> >>  		/* power down the PHY in case the PHY FW didn't already */
> >>  		ixgbe_set_copper_phy_power(hw, false);
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		*is_overtemp = true;
> >> +		return -EIO;
> >>  	}
> >>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
> >>  		/*  device fault alarm triggered */
> >> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
> >>  			/* power down the PHY in case the PHY FW didn't */
> >>  			ixgbe_set_copper_phy_power(hw, false);
> >> -			return IXGBE_ERR_OVERTEMP;
> >> +			*is_overtemp = true;
> >> +			return -EIO;
> >>  		}
> >>  	}
> >>  
> >> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>   **/
> >>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >>  {
> >> +	bool lsc, overtemp;
> >>  	u32 status;
> >>  	u16 reg;
> >> -	bool lsc;
> >>  
> >>  	/* Clear interrupt flags */
> >> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> >> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
> >>  
> >>  	/* Enable link status change alarm */
> >>  
> >> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >>  /**
> >>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
> >>   * @hw: pointer to hardware structure
> >> + * @is_overtemp: indicate whether an overtemp event encountered
> >>   *
> >>   * Handle external Base T PHY interrupt. If high temperature
> >>   * failure alarm then return error, else if link status change
> >>   * then setup internal/external PHY link
> >> - *
> >> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> >> - * failure alarm, else return PHY access status.
> >>   **/
> >> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
> >> +					  bool *is_overtemp)
> >>  {
> >>  	struct ixgbe_phy_info *phy = &hw->phy;
> >>  	bool lsc;
> >>  	u32 status;
> >>  
> >> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> >> +	if (!hw || !is_overtemp)
> >> +		return -EINVAL;
> >
> >Ditto.
> >
> >> +
> >> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
> >>  	if (status)
> >>  		return status;
> >>  
> >> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
> >>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
> >>   * @hw: pointer to hardware structure
> >>   */
> >> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> >> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> >>  {
> >>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
> >>  	s32 rc;
> >>  
> >>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
> >>  	if (rc)
> >> -		return rc;
> >> +		return false;
> >>  
> >>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
> >>  		ixgbe_shutdown_fw_phy(hw);
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		return true;
> >>  	}
> >> -	return 0;
> >> +	return false;
> >>  }
> >>  
> >>  /**
> >> -- 
> >> 2.31.1
> >>
_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

Re: [PATCH iwl-next v4 1/2] ixgbe: Refactor overtemp event handling

[Simon Horman]

On Thu, Dec 14, 2023 at 01:37:12PM +0000, Jagielski, Jedrzej wrote:
> From: Simon Horman <horms@kernel.org> 
> Sent: Thursday, December 14, 2023 10:56 AM
> 
> >On Tue, Dec 12, 2023 at 11:46:41AM +0100, Jedrzej Jagielski wrote:
> >> Currently ixgbe driver is notified of overheating events
> >> via internal IXGBE_ERR_OVERTEMP error code.
> >> 
> >> Change the approach for handle_lasi() to use freshly introduced
> >> is_overtemp function parameter which set when such event occurs.
> >> Change check_overtemp() to bool and return true if overtemp
> >> event occurs.
> >> 
> >> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> >> ---
> >> v2: change aproach to use additional function parameter to notify when overheat
> >> v4: change check_overtemp to bool
> >> 
> >> https://lore.kernel.org/netdev/20231208090055.303507-1-jedrzej.jagielski@intel.com/T/
> >> ---
> >
> >Hi Jedrzej,
> >
> >I like where this patch-set is going.
> >Please find some feedback from my side inline.
> 
> Hi Simon
> thank you for the review.
> 
> >
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 19 ++++----
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  | 26 ++++++-----
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  |  2 +-
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  4 +-
> >>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 45 +++++++++++--------
> >>  5 files changed, 54 insertions(+), 42 deletions(-)
> >> 
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> index 227415d61efc..9bff614788a2 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> >> @@ -2756,7 +2756,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
> >>  {
> >>  	struct ixgbe_hw *hw = &adapter->hw;
> >>  	u32 eicr = adapter->interrupt_event;
> >> -	s32 rc;
> >> +	bool overtemp;
> >>  
> >>  	if (test_bit(__IXGBE_DOWN, &adapter->state))
> >>  		return;
> >> @@ -2790,14 +2790,15 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
> >>  		}
> >>  
> >>  		/* Check if this is not due to overtemp */
> >> -		if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP)
> >> +		overtemp = hw->phy.ops.check_overtemp(hw);
> >> +		if (!overtemp)
> >>  			return;
> >
> >I like the readability of the above, but FWIIW, I think it could
> >also be slightly more compactly written as (completely untested!):
> >
> >		if (!hw->phy.ops.check_overtemp(hw))
> >			return;
> 
> I decided to do that this way in order to improve readability,
> but sure it can be changed.

No need, I agree the readability is good.

> 
> >
> >>  
> >>  		break;
> >>  	case IXGBE_DEV_ID_X550EM_A_1G_T:
> >>  	case IXGBE_DEV_ID_X550EM_A_1G_T_L:
> >> -		rc = hw->phy.ops.check_overtemp(hw);
> >> -		if (rc != IXGBE_ERR_OVERTEMP)
> >> +		overtemp = hw->phy.ops.check_overtemp(hw);
> >> +		if (!overtemp)
> >>  			return;
> >>  		break;
> >>  	default:
> >> @@ -7938,7 +7939,7 @@ static void ixgbe_service_timer(struct timer_list *t)
> >>  static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
> >>  {
> >>  	struct ixgbe_hw *hw = &adapter->hw;
> >> -	u32 status;
> >> +	bool overtemp;
> >>  
> >>  	if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT))
> >>  		return;
> >> @@ -7948,11 +7949,9 @@ static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter)
> >>  	if (!hw->phy.ops.handle_lasi)
> >>  		return;
> >>  
> >> -	status = hw->phy.ops.handle_lasi(&adapter->hw);
> >> -	if (status != IXGBE_ERR_OVERTEMP)
> >> -		return;
> >> -
> >> -	e_crit(drv, "%s\n", ixgbe_overheat_msg);
> >> +	hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
> >
> >Unless I am mistaken, the above can return an error. Should it be checked?
> 
> Since we are inside a void function we don't have many options to handle that.
> 
> I could be:
> 	err = hw->phy.ops.handle_lasi(&adapter->hw, &overtemp);
> 	if (err)
> 		return;
> 		
> 	if (!overtemp)
> 		return;
> 		
> So i decided to shorten it just to 
> 
> 	if (overtemp)
> 		...
> 		
> Some solution instead of returning here is to log warning when error
> encountered.		
> 
> >
> >Or alternatively, as this seems to be the only call-site,
> >could handle_lasi() return overtemp as a bool?
> 
> Actually handle_lasi() was designed to handle not only overtemp events
> but also link status ones. When changing it to bool it would be
> hard to differentiate them - then true only for overtemp case and false
> when link change or any error? I am not sure if this is a good direction.

I think it would improve the flow of the code a bit,
but you are right that it's not entirely great as
the callback doesn't only handle overtemp.

At this point I think what you already have is also fine.

> 
> >
> >> +	if (overtemp)
> >> +		e_crit(drv, "%s\n", ixgbe_overheat_msg);
> >>  }
> >>  
> >>  static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> index ca31638c6fb8..343c3ca9b1c9 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
> >> @@ -396,9 +396,10 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
> >>   **/
> >>  s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
> >>  {
> >> -	u32 i;
> >> -	u16 ctrl = 0;
> >>  	s32 status = 0;
> >> +	bool overtemp;
> >> +	u16 ctrl = 0;
> >> +	u32 i;
> >>  
> >>  	if (hw->phy.type == ixgbe_phy_unknown)
> >>  		status = ixgbe_identify_phy_generic(hw);
> >> @@ -407,8 +408,8 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
> >>  		return status;
> >>  
> >>  	/* Don't reset PHY if it's shut down due to overtemp. */
> >> -	if (!hw->phy.reset_if_overtemp &&
> >> -	    (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw)))
> >> +	overtemp = hw->phy.ops.check_overtemp(hw);
> >> +	if (!hw->phy.reset_if_overtemp && overtemp)
> >>  		return 0;
> >
> >Previously check_overtemp() would only be called if reset_if_overtemp was
> >false. Now it is called unconditionally. I'm not sure if it matters, but
> >the check for reset_if_overtemp may have avoided some logic, including a
> >call to hw->phy.ops.read_reg() in some cases.
> 
> Sure, the previous approach seems to be more efficient. Will be restored.

Great, thanks!

> 
> >
> >I wonder if it would be nicer to go back to the previous logic.
> >(completely untested!)
> >
> >	if (!hw->phy.reset_if_overtemp && hw->phy.ops.check_overtemp(hw))
> >		return 0;
> >
> >>  
> >>  	/* Blocked by MNG FW so bail */
> >> @@ -2747,21 +2748,24 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
> >>   *
> >>   *  Checks if the LASI temp alarm status was triggered due to overtemp
> >>   **/
> >> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> >> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
> >>  {
> >>  	u16 phy_data = 0;
> >> +	u32 status;
> >>  
> >>  	if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
> >> -		return 0;
> >> +		return false;
> >>  
> >>  	/* Check that the LASI temp alarm status was triggered */
> >> -	hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> >> -			     MDIO_MMD_PMAPMD, &phy_data);
> >> +	status = hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG,
> >> +				      MDIO_MMD_PMAPMD, &phy_data);
> >> +	if (status)
> >> +		return false;
> >>  
> >> -	if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
> >> -		return 0;
> >> +	if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> >> +		return true;
> >>  
> >> -	return IXGBE_ERR_OVERTEMP;
> >> +	return false;
> >
> >Maybe (completely untested!):
> 
> I like it.

:)

> 
> >
> >	return !!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
> >
> >>  }
> >>  
> >>  /** ixgbe_set_copper_phy_power - Control power for copper phy
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> index 6544c4539c0d..ef72729d7c93 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
> >> @@ -155,7 +155,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
> >>  s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
> >>  					u16 *list_offset,
> >>  					u16 *data_offset);
> >> -s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> >> +bool ixgbe_tn_check_overtemp(struct ixgbe_hw *hw);
> >>  s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
> >>  				u8 dev_addr, u8 *data);
> >>  s32 ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw *hw, u8 byte_offset,
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> index 2b00db92b08f..91c9ecca4cb5 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
> >> @@ -3509,10 +3509,10 @@ struct ixgbe_phy_operations {
> >>  	s32 (*read_i2c_sff8472)(struct ixgbe_hw *, u8 , u8 *);
> >>  	s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *);
> >>  	s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
> >> -	s32 (*check_overtemp)(struct ixgbe_hw *);
> >> +	bool (*check_overtemp)(struct ixgbe_hw *);
> >>  	s32 (*set_phy_power)(struct ixgbe_hw *, bool on);
> >>  	s32 (*enter_lplu)(struct ixgbe_hw *);
> >> -	s32 (*handle_lasi)(struct ixgbe_hw *hw);
> >> +	s32 (*handle_lasi)(struct ixgbe_hw *hw, bool *);
> >
> >I'm not sure of the history of this, or the nature of the other callbacks,
> >but I think that usually int is used as the return type when standard error
> >numbers are returned. I realise that is not strictly related to this patch,
> >maybe it could be addressed at some point?
> 
> Sure, so it will be scheduled for the future.

Thanks.

> >>  	s32 (*read_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> >>  				      u8 *value);
> >>  	s32 (*write_i2c_byte_unlocked)(struct ixgbe_hw *, u8 offset, u8 addr,
> >> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> index b3509b617a4e..59dd38dd8248 100644
> >> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
> >> @@ -600,8 +600,10 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
> >>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_SETUP_LINK, &setup);
> >>  	if (rc)
> >>  		return rc;
> >> +
> >>  	if (setup[0] == FW_PHY_ACT_SETUP_LINK_RSP_DOWN)
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		return -EIO;
> >> +
> >>  	return 0;
> >>  }
> >>  
> >> @@ -2367,18 +2369,21 @@ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw,
> >>   * @hw: pointer to hardware structure
> >>   * @lsc: pointer to boolean flag which indicates whether external Base T
> >>   *	 PHY interrupt is lsc
> >> + * @is_overtemp: indicate whether an overtemp event encountered
> >>   *
> >>   * Determime if external Base T PHY interrupt cause is high temperature
> >>   * failure alarm or link status change.
> >> - *
> >> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> >> - * failure alarm, else return PHY access status.
> >>   **/
> >> -static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >> +static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc,
> >> +				       bool *is_overtemp)
> >>  {
> >>  	u32 status;
> >>  	u16 reg;
> >>  
> >> +	if (!hw || !lsc || !is_overtemp)
> >> +		return -EINVAL;
> >
> >I don't think this kind of defensive programming is appropriate
> >in a kernel driver.
> 
> Ok, i wasn't sure. Just wanted to ensure we won't use is_overtemp if NULL.
> 
> >
> >And unless I am mistaken, caller's don't check the return value of this
> >function (or propagate to a caller which doesn't check it).
> 
> ixgbe_handle_lasi_ext_t_x550em() which is calling this function checks its
> returned status.

In any case, the callers always pass the right arguments, and things
would blow up fairly quickly if they didn't. So I think the way
forwards is to simply drop the defensive checks.

> 
> >
> >> +
> >> +	*is_overtemp = false;
> >>  	*lsc = false;
> >>  
> >>  	/* Vendor alarm triggered */
> >> @@ -2410,7 +2415,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) {
> >>  		/* power down the PHY in case the PHY FW didn't already */
> >>  		ixgbe_set_copper_phy_power(hw, false);
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		*is_overtemp = true;
> >> +		return -EIO;
> >>  	}
> >>  	if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) {
> >>  		/*  device fault alarm triggered */
> >> @@ -2424,7 +2430,8 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>  		if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) {
> >>  			/* power down the PHY in case the PHY FW didn't */
> >>  			ixgbe_set_copper_phy_power(hw, false);
> >> -			return IXGBE_ERR_OVERTEMP;
> >> +			*is_overtemp = true;
> >> +			return -EIO;
> >>  		}
> >>  	}
> >>  
> >> @@ -2460,12 +2467,12 @@ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc)
> >>   **/
> >>  static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >>  {
> >> +	bool lsc, overtemp;
> >>  	u32 status;
> >>  	u16 reg;
> >> -	bool lsc;
> >>  
> >>  	/* Clear interrupt flags */
> >> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> >> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, &overtemp);
> >>  
> >>  	/* Enable link status change alarm */
> >>  
> >> @@ -2544,21 +2551,23 @@ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >>  /**
> >>   * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt
> >>   * @hw: pointer to hardware structure
> >> + * @is_overtemp: indicate whether an overtemp event encountered
> >>   *
> >>   * Handle external Base T PHY interrupt. If high temperature
> >>   * failure alarm then return error, else if link status change
> >>   * then setup internal/external PHY link
> >> - *
> >> - * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature
> >> - * failure alarm, else return PHY access status.
> >>   **/
> >> -static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw)
> >> +static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw,
> >> +					  bool *is_overtemp)
> >>  {
> >>  	struct ixgbe_phy_info *phy = &hw->phy;
> >>  	bool lsc;
> >>  	u32 status;
> >>  
> >> -	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc);
> >> +	if (!hw || !is_overtemp)
> >> +		return -EINVAL;
> >
> >Ditto.
> >
> >> +
> >> +	status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc, is_overtemp);
> >>  	if (status)
> >>  		return status;
> >>  
> >> @@ -3186,20 +3195,20 @@ static s32 ixgbe_reset_phy_fw(struct ixgbe_hw *hw)
> >>   * ixgbe_check_overtemp_fw - Check firmware-controlled PHYs for overtemp
> >>   * @hw: pointer to hardware structure
> >>   */
> >> -static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> >> +static bool ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
> >>  {
> >>  	u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
> >>  	s32 rc;
> >>  
> >>  	rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
> >>  	if (rc)
> >> -		return rc;
> >> +		return false;
> >>  
> >>  	if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
> >>  		ixgbe_shutdown_fw_phy(hw);
> >> -		return IXGBE_ERR_OVERTEMP;
> >> +		return true;
> >>  	}
> >> -	return 0;
> >> +	return false;
> >>  }
> >>  
> >>  /**
> >> -- 
> >> 2.31.1
> >>

[Intel-wired-lan] [PATCH iwl-next v4 2/2] ixgbe: Refactor returning internal error codes

[Jedrzej Jagielski]

Change returning codes to the kernel ones instead of
the internal ones for the entire ixgbe driver.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v3: do not use ENOSYS; rebase
---
 .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++---
 .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++----
 .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++----------
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  26 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  |  84 +++++-----
 .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  39 -----
 drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 +++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 109 ++++++-------
 12 files changed, 266 insertions(+), 317 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 0470b69d834c..6835d5f18753 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -123,14 +123,14 @@ static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
 		if (ret_val)
 			return ret_val;
 		if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 
 		/* Check to see if SFP+ module is supported */
 		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
 							    &list_offset,
 							    &data_offset);
 		if (ret_val)
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		break;
 	default:
 		break;
@@ -213,7 +213,7 @@ static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
 		break;
 
 	default:
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	return 0;
@@ -283,7 +283,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 
 	/* Validate the water mark configuration */
 	if (!hw->fc.pause_time)
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 
 	/* Low water mark of zero causes XOFF floods */
 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
@@ -292,7 +292,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 			if (!hw->fc.low_water[i] ||
 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
 				hw_dbg(hw, "Invalid water mark configuration\n");
-				return IXGBE_ERR_INVALID_LINK_SETTINGS;
+				return -EINVAL;
 			}
 		}
 	}
@@ -369,7 +369,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Set 802.3x based flow control settings. */
@@ -438,7 +438,7 @@ static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
 				msleep(100);
 			}
 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+				status = -EIO;
 				hw_dbg(hw, "Autonegotiation did not complete.\n");
 			}
 		}
@@ -478,7 +478,7 @@ static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
 
 	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
 		hw_dbg(hw, "Link was indicated but link is down\n");
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	return 0;
@@ -594,7 +594,7 @@ static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
 	speed &= link_capabilities;
 
 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 
 	/* Set KX4/KX support according to speed requested */
 	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
@@ -701,9 +701,9 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
 
 		/* Init PHY and function pointers, perform SFP setup */
 		phy_status = hw->phy.ops.init(hw);
-		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+		if (phy_status == -EOPNOTSUPP)
 			return phy_status;
-		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
+		if (phy_status == -ENOENT)
 			goto mac_reset_top;
 
 		hw->phy.ops.reset(hw);
@@ -727,7 +727,7 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
 		udelay(1);
 	}
 	if (ctrl & IXGBE_CTRL_RST) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -789,7 +789,7 @@ static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
@@ -814,7 +814,7 @@ static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
@@ -845,7 +845,7 @@ static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	u32 vftabyte;
 
 	if (vlan > 4095)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Determine 32-bit word position in array */
 	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
@@ -964,7 +964,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 		gssr = IXGBE_GSSR_PHY0_SM;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	if (hw->phy.type == ixgbe_phy_nl) {
 		/*
@@ -993,7 +993,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 
 		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
 			hw_dbg(hw, "EEPROM read did not pass.\n");
-			status = IXGBE_ERR_SFP_NOT_PRESENT;
+			status = -ENOENT;
 			goto out;
 		}
 
@@ -1003,7 +1003,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 
 		*eeprom_data = (u8)(sfp_data >> 8);
 	} else {
-		status = IXGBE_ERR_PHY;
+		status = -EIO;
 	}
 
 out:
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 58ea959a4482..339e106a5732 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -117,7 +117,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 							IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
 			goto setup_sfp_err;
@@ -144,7 +144,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 
 		if (ret_val) {
 			hw_dbg(hw, " sfp module setup not complete\n");
-			return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
+			return -EIO;
 		}
 	}
 
@@ -159,7 +159,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 	usleep_range(hw->eeprom.semaphore_delay * 1000,
 		     hw->eeprom.semaphore_delay * 2000);
 	hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
-	return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
+	return -EIO;
 }
 
 /**
@@ -184,7 +184,7 @@ static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 					IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		*locked = true;
 	}
@@ -219,7 +219,7 @@ static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 					IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		locked = true;
 	}
@@ -400,7 +400,7 @@ static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
 		break;
 
 	default:
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	if (hw->phy.multispeed_fiber) {
@@ -541,7 +541,7 @@ static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
 				msleep(100);
 			}
 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+				status = -EIO;
 				hw_dbg(hw, "Autoneg did not complete.\n");
 			}
 		}
@@ -794,7 +794,7 @@ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
 	speed &= link_capabilities;
 
 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 
 	/* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
 	if (hw->mac.orig_link_settings_stored)
@@ -861,8 +861,7 @@ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
 					msleep(100);
 				}
 				if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-					status =
-						IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+					status = -EIO;
 					hw_dbg(hw, "Autoneg did not complete.\n");
 				}
 			}
@@ -927,7 +926,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 	/* Identify PHY and related function pointers */
 	status = hw->phy.ops.init(hw);
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Setup SFP module if there is one present. */
@@ -936,7 +935,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 		hw->phy.sfp_setup_needed = false;
 	}
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Reset PHY */
@@ -974,7 +973,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -1093,7 +1092,7 @@ static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
 		udelay(10);
 	}
 
-	return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
+	return -EIO;
 }
 
 /**
@@ -1155,7 +1154,7 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
 	}
 	if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
 		hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
-		return IXGBE_ERR_FDIR_REINIT_FAILED;
+		return -EIO;
 	}
 
 	/* Clear FDIR statistics registers (read to clear) */
@@ -1387,7 +1386,7 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on flow type input\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* configure FDIRCMD register */
@@ -1546,7 +1545,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on vm pool mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
@@ -1555,14 +1554,14 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		if (input_mask->formatted.dst_port ||
 		    input_mask->formatted.src_port) {
 			hw_dbg(hw, " Error on src/dst port mask\n");
-			return IXGBE_ERR_CONFIG;
+			return -EIO;
 		}
 		break;
 	case IXGBE_ATR_L4TYPE_MASK:
 		break;
 	default:
 		hw_dbg(hw, " Error on flow type mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
@@ -1583,7 +1582,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on VLAN mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch ((__force u16)input_mask->formatted.flex_bytes & 0xFFFF) {
@@ -1595,7 +1594,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on flexible byte mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
@@ -1824,7 +1823,7 @@ static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
 
 	/* Return error if SFP module has been detected but is not supported */
 	if (hw->phy.type == ixgbe_phy_sfp_unsupported)
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	return status;
 }
@@ -1863,13 +1862,13 @@ static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
  *  Verifies that installed the firmware version is 0.6 or higher
  *  for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
  *
- *  Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
- *  if the FW version is not supported.
+ *  Return: -EACCES if the FW is not present or if the FW version is
+ *  not supported.
  **/
 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 {
-	s32 status = IXGBE_ERR_EEPROM_VERSION;
 	u16 fw_offset, fw_ptp_cfg_offset;
+	s32 status = -EACCES;
 	u16 offset;
 	u16 fw_version = 0;
 
@@ -1883,7 +1882,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 		goto fw_version_err;
 
 	if (fw_offset == 0 || fw_offset == 0xFFFF)
-		return IXGBE_ERR_EEPROM_VERSION;
+		return -EACCES;
 
 	/* get the offset to the Pass Through Patch Configuration block */
 	offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
@@ -1891,7 +1890,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 		goto fw_version_err;
 
 	if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
-		return IXGBE_ERR_EEPROM_VERSION;
+		return -EACCES;
 
 	/* get the firmware version */
 	offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
@@ -1905,7 +1904,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 
 fw_version_err:
 	hw_err(hw, "eeprom read at offset %d failed\n", offset);
-	return IXGBE_ERR_EEPROM_VERSION;
+	return -EACCES;
 }
 
 /**
@@ -2038,7 +2037,7 @@ static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
 
 	if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
 		hw_dbg(hw, "auto negotiation not completed\n");
-		ret_val = IXGBE_ERR_RESET_FAILED;
+		ret_val = -EIO;
 		goto reset_pipeline_out;
 	}
 
@@ -2087,7 +2086,7 @@ static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
 
 		if (!timeout) {
 			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
-			status = IXGBE_ERR_I2C;
+			status = -EIO;
 			goto release_i2c_access;
 		}
 	}
@@ -2141,7 +2140,7 @@ static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
 
 		if (!timeout) {
 			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
-			status = IXGBE_ERR_I2C;
+			status = -EIO;
 			goto release_i2c_access;
 		}
 	}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 7d7bd44448c4..876d5b497049 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -124,7 +124,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
 	 */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	/*
@@ -215,7 +215,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	if (hw->mac.type != ixgbe_mac_X540) {
@@ -500,7 +500,7 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 
 	if (pba_num == NULL) {
 		hw_dbg(hw, "PBA string buffer was null\n");
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
@@ -526,7 +526,7 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 		/* we will need 11 characters to store the PBA */
 		if (pba_num_size < 11) {
 			hw_dbg(hw, "PBA string buffer too small\n");
-			return IXGBE_ERR_NO_SPACE;
+			return -ENOSPC;
 		}
 
 		/* extract hex string from data and pba_ptr */
@@ -563,13 +563,13 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 
 	if (length == 0xFFFF || length == 0) {
 		hw_dbg(hw, "NVM PBA number section invalid length\n");
-		return IXGBE_ERR_PBA_SECTION;
+		return -EIO;
 	}
 
 	/* check if pba_num buffer is big enough */
 	if (pba_num_size  < (((u32)length * 2) - 1)) {
 		hw_dbg(hw, "PBA string buffer too small\n");
-		return IXGBE_ERR_NO_SPACE;
+		return -ENOSPC;
 	}
 
 	/* trim pba length from start of string */
@@ -805,7 +805,7 @@ s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
 	u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
@@ -826,7 +826,7 @@ s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
 	u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn off the LED, set mode to OFF. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
@@ -903,11 +903,8 @@ s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset + words > hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || (offset + words > hw->eeprom.word_size))
+		return -EINVAL;
 
 	/*
 	 * The EEPROM page size cannot be queried from the chip. We do lazy
@@ -961,7 +958,7 @@ static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
 
 	if (ixgbe_ready_eeprom(hw) != 0) {
 		ixgbe_release_eeprom(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	for (i = 0; i < words; i++) {
@@ -1027,7 +1024,7 @@ s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
 	hw->eeprom.ops.init_params(hw);
 
 	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+		return -EINVAL;
 
 	return ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data);
 }
@@ -1049,11 +1046,8 @@ s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset + words > hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || (offset + words > hw->eeprom.word_size))
+		return -EINVAL;
 
 	/*
 	 * We cannot hold synchronization semaphores for too long
@@ -1098,7 +1092,7 @@ static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
 
 	if (ixgbe_ready_eeprom(hw) != 0) {
 		ixgbe_release_eeprom(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	for (i = 0; i < words; i++) {
@@ -1141,7 +1135,7 @@ s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 	hw->eeprom.ops.init_params(hw);
 
 	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+		return -EINVAL;
 
 	return ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
 }
@@ -1164,11 +1158,8 @@ s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || offset >= hw->eeprom.word_size)
+		return -EINVAL;
 
 	for (i = 0; i < words; i++) {
 		eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
@@ -1261,11 +1252,8 @@ s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || offset >= hw->eeprom.word_size)
+		return -EINVAL;
 
 	for (i = 0; i < words; i++) {
 		eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
@@ -1327,7 +1315,7 @@ static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
 		}
 		udelay(5);
 	}
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -1343,7 +1331,7 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
 	u32 i;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
 
@@ -1365,7 +1353,7 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
 		hw_dbg(hw, "Could not acquire EEPROM grant\n");
 
 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	/* Setup EEPROM for Read/Write */
@@ -1418,7 +1406,7 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
 		swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
 		if (swsm & IXGBE_SWSM_SMBI) {
 			hw_dbg(hw, "Software semaphore SMBI between device drivers not granted.\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 	}
 
@@ -1446,7 +1434,7 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
 	if (i >= timeout) {
 		hw_dbg(hw, "SWESMBI Software EEPROM semaphore not granted.\n");
 		ixgbe_release_eeprom_semaphore(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	return 0;
@@ -1502,7 +1490,7 @@ static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
 	 */
 	if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
 		hw_dbg(hw, "SPI EEPROM Status error\n");
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	return 0;
@@ -1714,7 +1702,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 	for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
 		if (hw->eeprom.ops.read(hw, i, &pointer)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		/* If the pointer seems invalid */
@@ -1723,7 +1711,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 
 		if (hw->eeprom.ops.read(hw, pointer, &length)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		if (length == 0xFFFF || length == 0)
@@ -1732,7 +1720,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 		for (j = pointer + 1; j <= pointer + length; j++) {
 			if (hw->eeprom.ops.read(hw, j, &word)) {
 				hw_dbg(hw, "EEPROM read failed\n");
-				return IXGBE_ERR_EEPROM;
+				return -EIO;
 			}
 			checksum += word;
 		}
@@ -1785,7 +1773,7 @@ s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
 	 * calculated checksum
 	 */
 	if (read_checksum != checksum)
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 
 	/* If the user cares, return the calculated checksum */
 	if (checksum_val)
@@ -1844,7 +1832,7 @@ s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
 	/* Make sure we are using a valid rar index range */
 	if (index >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", index);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	/* setup VMDq pool selection before this RAR gets enabled */
@@ -1896,7 +1884,7 @@ s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
 	/* Make sure we are using a valid rar index range */
 	if (index >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", index);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	/*
@@ -2145,7 +2133,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 
 	/* Validate the water mark configuration. */
 	if (!hw->fc.pause_time)
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 
 	/* Low water mark of zero causes XOFF floods */
 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
@@ -2154,7 +2142,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 			if (!hw->fc.low_water[i] ||
 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
 				hw_dbg(hw, "Invalid water mark configuration\n");
-				return IXGBE_ERR_INVALID_LINK_SETTINGS;
+				return -EINVAL;
 			}
 		}
 	}
@@ -2211,7 +2199,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Set 802.3x based flow control settings. */
@@ -2268,7 +2256,7 @@ s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
 		       u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
 {
 	if ((!(adv_reg)) ||  (!(lp_reg)))
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EINVAL;
 
 	if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
 		/*
@@ -2320,7 +2308,7 @@ static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
 	linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
 	if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
 	    (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1))
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EIO;
 
 	pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
 	pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
@@ -2352,12 +2340,12 @@ static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
 	 */
 	links = IXGBE_READ_REG(hw, IXGBE_LINKS);
 	if ((links & IXGBE_LINKS_KX_AN_COMP) == 0)
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EIO;
 
 	if (hw->mac.type == ixgbe_mac_82599EB) {
 		links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
 		if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0)
-			return IXGBE_ERR_FC_NOT_NEGOTIATED;
+			return -EIO;
 	}
 	/*
 	 * Read the 10g AN autoc and LP ability registers and resolve
@@ -2406,8 +2394,8 @@ static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
  **/
 void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
 {
-	s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
 	ixgbe_link_speed speed;
+	s32 ret_val = -EIO;
 	bool link_up;
 
 	/*
@@ -2509,7 +2497,7 @@ static u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw)
  *  @hw: pointer to hardware structure
  *
  *  Disables PCI-Express primary access and verifies there are no pending
- *  requests. IXGBE_ERR_PRIMARY_REQUESTS_PENDING is returned if primary disable
+ *  requests. -EALREADY is returned if primary disable
  *  bit hasn't caused the primary requests to be disabled, else 0
  *  is returned signifying primary requests disabled.
  **/
@@ -2574,7 +2562,7 @@ static s32 ixgbe_disable_pcie_primary(struct ixgbe_hw *hw)
 	}
 
 	hw_dbg(hw, "PCIe transaction pending bit also did not clear.\n");
-	return IXGBE_ERR_PRIMARY_REQUESTS_PENDING;
+	return -EALREADY;
 }
 
 /**
@@ -2599,7 +2587,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 		 * SW_FW_SYNC bits (not just NVM)
 		 */
 		if (ixgbe_get_eeprom_semaphore(hw))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
 		if (!(gssr & (fwmask | swmask))) {
@@ -2619,7 +2607,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 		ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask));
 
 	usleep_range(5000, 10000);
-	return IXGBE_ERR_SWFW_SYNC;
+	return -EBUSY;
 }
 
 /**
@@ -2756,7 +2744,7 @@ s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
 	s32 ret_val;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/*
 	 * Link must be up to auto-blink the LEDs;
@@ -2802,7 +2790,7 @@ s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
 	s32 ret_val;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
 	if (ret_val)
@@ -2962,7 +2950,7 @@ s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
@@ -3013,7 +3001,7 @@ s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	if (vmdq < 32) {
@@ -3090,7 +3078,7 @@ static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
 	 * will simply bypass the VLVF if there are no entries present in the
 	 * VLVF that contain our VLAN
 	 */
-	first_empty_slot = vlvf_bypass ? IXGBE_ERR_NO_SPACE : 0;
+	first_empty_slot = vlvf_bypass ? -ENOSPC : 0;
 
 	/* add VLAN enable bit for comparison */
 	vlan |= IXGBE_VLVF_VIEN;
@@ -3114,7 +3102,7 @@ static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
 	if (!first_empty_slot)
 		hw_dbg(hw, "No space in VLVF.\n");
 
-	return first_empty_slot ? : IXGBE_ERR_NO_SPACE;
+	return first_empty_slot ? : -ENOSPC;
 }
 
 /**
@@ -3134,7 +3122,7 @@ s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	s32 vlvf_index;
 
 	if ((vlan > 4095) || (vind > 63))
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/*
 	 * this is a 2 part operation - first the VFTA, then the
@@ -3610,7 +3598,8 @@ u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
  *
  *  Communicates with the manageability block. On success return 0
  *  else returns semaphore error when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  semaphore, -EINVAL when incorrect patameters passed or -EIO when
+ *  command fails.
  *
  *  This function assumes that the IXGBE_GSSR_SW_MNG_SM semaphore is held
  *  by the caller.
@@ -3623,7 +3612,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 
 	if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
 		hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EINVAL;
 	}
 
 	/* Set bit 9 of FWSTS clearing FW reset indication */
@@ -3634,13 +3623,13 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 	hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
 	if (!(hicr & IXGBE_HICR_EN)) {
 		hw_dbg(hw, "IXGBE_HOST_EN bit disabled.\n");
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EIO;
 	}
 
 	/* Calculate length in DWORDs. We must be DWORD aligned */
 	if (length % sizeof(u32)) {
 		hw_dbg(hw, "Buffer length failure, not aligned to dword");
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	dword_len = length >> 2;
@@ -3665,7 +3654,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 	/* Check command successful completion. */
 	if ((timeout && i == timeout) ||
 	    !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV))
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EIO;
 
 	return 0;
 }
@@ -3685,7 +3674,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
  *  in these cases.
  *
  *  Communicates with the manageability block.  On success return 0
- *  else return IXGBE_ERR_HOST_INTERFACE_COMMAND.
+ *  else return -EIO or -EINVAL.
  **/
 s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 				 u32 length, u32 timeout,
@@ -3700,7 +3689,7 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 
 	if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
 		hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EINVAL;
 	}
 	/* Take management host interface semaphore */
 	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
@@ -3730,7 +3719,7 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 
 	if (length < round_up(buf_len, 4) + hdr_size) {
 		hw_dbg(hw, "Buffer not large enough for reply message.\n");
-		status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		status = -EIO;
 		goto rel_out;
 	}
 
@@ -3761,8 +3750,8 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
  *
  *  Sends driver version number to firmware through the manageability
  *  block.  On success return 0
- *  else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  else returns -EBUSY when encountering an error acquiring
+ *  semaphore or -EIO when command fails.
  **/
 s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
 				 u8 build, u8 sub, __always_unused u16 len,
@@ -3798,7 +3787,7 @@ s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
 		    FW_CEM_RESP_STATUS_SUCCESS)
 			ret_val = 0;
 		else
-			ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND;
+			ret_val = -EIO;
 
 		break;
 	}
@@ -3896,14 +3885,14 @@ static s32 ixgbe_get_ets_data(struct ixgbe_hw *hw, u16 *ets_cfg,
 		return status;
 
 	if ((*ets_offset == 0x0000) || (*ets_offset == 0xFFFF))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = hw->eeprom.ops.read(hw, *ets_offset, ets_cfg);
 	if (status)
 		return status;
 
 	if ((*ets_cfg & IXGBE_ETS_TYPE_MASK) != IXGBE_ETS_TYPE_EMC_SHIFTED)
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	return 0;
 }
@@ -3926,7 +3915,7 @@ s32 ixgbe_get_thermal_sensor_data_generic(struct ixgbe_hw *hw)
 
 	/* Only support thermal sensors attached to physical port 0 */
 	if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
 	if (status)
@@ -3986,7 +3975,7 @@ s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw)
 
 	/* Only support thermal sensors attached to physical port 0 */
 	if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
 	if (status)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 4dd897806fa5..e47461f3eaef 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3370,7 +3370,7 @@ static int ixgbe_get_module_eeprom(struct net_device *dev,
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
 	struct ixgbe_hw *hw = &adapter->hw;
-	s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
+	s32 status = -EFAULT;
 	u8 databyte = 0xFF;
 	int i = 0;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 9bff614788a2..40c860de061b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5513,7 +5513,7 @@ static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw)
 {
 	u32 speed;
 	bool autoneg, link_up = false;
-	int ret = IXGBE_ERR_LINK_SETUP;
+	int ret = -EIO;
 
 	if (hw->mac.ops.check_link)
 		ret = hw->mac.ops.check_link(hw, &speed, &link_up, false);
@@ -5984,13 +5984,13 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
 	err = hw->mac.ops.init_hw(hw);
 	switch (err) {
 	case 0:
-	case IXGBE_ERR_SFP_NOT_PRESENT:
-	case IXGBE_ERR_SFP_NOT_SUPPORTED:
+	case -ENOENT:
+	case -EOPNOTSUPP:
 		break;
-	case IXGBE_ERR_PRIMARY_REQUESTS_PENDING:
+	case -EALREADY:
 		e_dev_err("primary disable timed out\n");
 		break;
-	case IXGBE_ERR_EEPROM_VERSION:
+	case -EACCES:
 		/* We are running on a pre-production device, log a warning */
 		e_dev_warn("This device is a pre-production adapter/LOM. "
 			   "Please be aware there may be issues associated with "
@@ -7830,10 +7830,10 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 	adapter->sfp_poll_time = jiffies + IXGBE_SFP_POLL_JIFFIES - 1;
 
 	err = hw->phy.ops.identify_sfp(hw);
-	if (err == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (err == -EOPNOTSUPP)
 		goto sfp_out;
 
-	if (err == IXGBE_ERR_SFP_NOT_PRESENT) {
+	if (err == -ENOENT) {
 		/* If no cable is present, then we need to reset
 		 * the next time we find a good cable. */
 		adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET;
@@ -7859,7 +7859,7 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 	else
 		err = hw->mac.ops.setup_sfp(hw);
 
-	if (err == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (err == -EOPNOTSUPP)
 		goto sfp_out;
 
 	adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
@@ -7868,8 +7868,8 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 sfp_out:
 	clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
 
-	if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) &&
-	    (adapter->netdev->reg_state == NETREG_REGISTERED)) {
+	if (err == -EOPNOTSUPP &&
+	    adapter->netdev->reg_state == NETREG_REGISTERED) {
 		e_dev_err("failed to initialize because an unsupported "
 			  "SFP+ module type was detected.\n");
 		e_dev_err("Reload the driver after installing a "
@@ -10921,9 +10921,9 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	err = hw->mac.ops.reset_hw(hw);
 	hw->phy.reset_if_overtemp = false;
 	ixgbe_set_eee_capable(adapter);
-	if (err == IXGBE_ERR_SFP_NOT_PRESENT) {
+	if (err == -ENOENT) {
 		err = 0;
-	} else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
+	} else if (err == -EOPNOTSUPP) {
 		e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n");
 		e_dev_err("Reload the driver after installing a supported module.\n");
 		goto err_sw_init;
@@ -11142,7 +11142,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* reset the hardware with the new settings */
 	err = hw->mac.ops.start_hw(hw);
-	if (err == IXGBE_ERR_EEPROM_VERSION) {
+	if (err == -EACCES) {
 		/* We are running on a pre-production device, log a warning */
 		e_dev_warn("This device is a pre-production adapter/LOM. "
 			   "Please be aware there may be issues associated "
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
index 5679293e53f7..fe7ef5773369 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
@@ -24,7 +24,7 @@ s32 ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
 		size = mbx->size;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->read(hw, msg, size, mbx_id);
 }
@@ -43,10 +43,10 @@ s32 ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (size > mbx->size)
-		return IXGBE_ERR_MBX;
+		return -EINVAL;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->write(hw, msg, size, mbx_id);
 }
@@ -63,7 +63,7 @@ s32 ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_msg(hw, mbx_id);
 }
@@ -80,7 +80,7 @@ s32 ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_ack(hw, mbx_id);
 }
@@ -97,7 +97,7 @@ s32 ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_rst(hw, mbx_id);
 }
@@ -115,12 +115,12 @@ static s32 ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
 	int countdown = mbx->timeout;
 
 	if (!countdown || !mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	while (mbx->ops->check_for_msg(hw, mbx_id)) {
 		countdown--;
 		if (!countdown)
-			return IXGBE_ERR_MBX;
+			return -EIO;
 		udelay(mbx->usec_delay);
 	}
 
@@ -140,12 +140,12 @@ static s32 ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
 	int countdown = mbx->timeout;
 
 	if (!countdown || !mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	while (mbx->ops->check_for_ack(hw, mbx_id)) {
 		countdown--;
 		if (!countdown)
-			return IXGBE_ERR_MBX;
+			return -EIO;
 		udelay(mbx->usec_delay);
 	}
 
@@ -169,7 +169,7 @@ static s32 ixgbe_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
 	s32 ret_val;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	ret_val = ixgbe_poll_for_msg(hw, mbx_id);
 	if (ret_val)
@@ -197,7 +197,7 @@ static s32 ixgbe_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
 
 	/* exit if either we can't write or there isn't a defined timeout */
 	if (!mbx->ops || !mbx->timeout)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	/* send msg */
 	ret_val = mbx->ops->write(hw, msg, size, mbx_id);
@@ -217,7 +217,7 @@ static s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -238,7 +238,7 @@ static s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -259,7 +259,7 @@ static s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -295,7 +295,7 @@ static s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -317,7 +317,7 @@ static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
 	if (p2v_mailbox & IXGBE_PFMAILBOX_PFU)
 		return 0;
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
index 8f4316b19278..6434c190e7a4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
@@ -7,7 +7,6 @@
 #include "ixgbe_type.h"
 
 #define IXGBE_VFMAILBOX_SIZE        16 /* 16 32 bit words - 64 bytes */
-#define IXGBE_ERR_MBX               -100
 
 #define IXGBE_VFMAILBOX             0x002FC
 #define IXGBE_VFMBMEM               0x00200
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index 343c3ca9b1c9..9fa0676cfff6 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -102,7 +102,7 @@ s32 ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 	csum = ~csum;
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 		ixgbe_i2c_start(hw);
 		/* Device Address and write indication */
 		if (ixgbe_out_i2c_byte_ack(hw, addr))
@@ -150,7 +150,7 @@ s32 ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 			hw_dbg(hw, "I2C byte read combined error.\n");
 	} while (retry < max_retry);
 
-	return IXGBE_ERR_I2C;
+	return -EIO;
 }
 
 /**
@@ -179,7 +179,7 @@ s32 ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 	csum = ~csum;
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 		ixgbe_i2c_start(hw);
 		/* Device Address and write indication */
 		if (ixgbe_out_i2c_byte_ack(hw, addr))
@@ -215,7 +215,7 @@ s32 ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 			hw_dbg(hw, "I2C byte write combined error.\n");
 	} while (retry < max_retry);
 
-	return IXGBE_ERR_I2C;
+	return -EIO;
 }
 
 /**
@@ -262,8 +262,8 @@ static bool ixgbe_probe_phy(struct ixgbe_hw *hw, u16 phy_addr)
  **/
 s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 {
+	u32 status = -EFAULT;
 	u32 phy_addr;
-	u32 status = IXGBE_ERR_PHY_ADDR_INVALID;
 
 	if (!hw->phy.phy_semaphore_mask) {
 		if (hw->bus.lan_id)
@@ -281,7 +281,7 @@ s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 		if (ixgbe_probe_phy(hw, phy_addr))
 			return 0;
 		else
-			return IXGBE_ERR_PHY_ADDR_INVALID;
+			return -EFAULT;
 	}
 
 	for (phy_addr = 0; phy_addr < IXGBE_MAX_PHY_ADDR; phy_addr++) {
@@ -457,7 +457,7 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 
 	if (ctrl & MDIO_CTRL1_RESET) {
 		hw_dbg(hw, "PHY reset polling failed to complete.\n");
-		return IXGBE_ERR_RESET_FAILED;
+		return -EIO;
 	}
 
 	return 0;
@@ -500,7 +500,7 @@ s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY address command did not complete.\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Address cycle complete, setup and write the read
@@ -527,7 +527,7 @@ s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY read command didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Read operation is complete.  Get the data
@@ -559,7 +559,7 @@ s32 ixgbe_read_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 						phy_data);
 		hw->mac.ops.release_swfw_sync(hw, gssr);
 	} else {
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	return status;
@@ -604,7 +604,7 @@ s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY address cmd didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/*
@@ -632,7 +632,7 @@ s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY write cmd didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -657,7 +657,7 @@ s32 ixgbe_write_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 						 phy_data);
 		hw->mac.ops.release_swfw_sync(hw, gssr);
 	} else {
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	return status;
@@ -1430,7 +1430,7 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 
 	if ((phy_data & MDIO_CTRL1_RESET) != 0) {
 		hw_dbg(hw, "PHY reset did not complete.\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Get init offsets */
@@ -1486,12 +1486,12 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 				hw_dbg(hw, "SOL\n");
 			} else {
 				hw_dbg(hw, "Bad control value\n");
-				return IXGBE_ERR_PHY;
+				return -EIO;
 			}
 			break;
 		default:
 			hw_dbg(hw, "Bad control type\n");
-			return IXGBE_ERR_PHY;
+			return -EIO;
 		}
 	}
 
@@ -1499,7 +1499,7 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 
 err_eeprom:
 	hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
-	return IXGBE_ERR_PHY;
+	return -EIO;
 }
 
 /**
@@ -1517,10 +1517,10 @@ s32 ixgbe_identify_module_generic(struct ixgbe_hw *hw)
 		return ixgbe_identify_qsfp_module_generic(hw);
 	default:
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1545,7 +1545,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_fiber) {
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
 	/* LAN ID is needed for sfp_type determination */
@@ -1560,7 +1560,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 
 	if (identifier != IXGBE_SFF_IDENTIFIER_SFP) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 	status = hw->phy.ops.read_i2c_eeprom(hw,
 					     IXGBE_SFF_1GBE_COMP_CODES,
@@ -1751,7 +1751,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 	      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
 	      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1)) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	/* Anything else 82598-based is supported */
@@ -1775,7 +1775,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		}
 		hw_dbg(hw, "SFP+ module not supported\n");
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 	return 0;
 
@@ -1785,7 +1785,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		hw->phy.id = 0;
 		hw->phy.type = ixgbe_phy_unknown;
 	}
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1812,7 +1812,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_fiber_qsfp) {
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
 	/* LAN ID is needed for sfp_type determination */
@@ -1826,7 +1826,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 
 	if (identifier != IXGBE_SFF_IDENTIFIER_QSFP_PLUS) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	hw->phy.id = identifier;
@@ -1894,7 +1894,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 		} else {
 			/* unsupported module type */
 			hw->phy.type = ixgbe_phy_sfp_unsupported;
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		}
 	}
 
@@ -1954,7 +1954,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 			}
 			hw_dbg(hw, "QSFP module not supported\n");
 			hw->phy.type = ixgbe_phy_sfp_unsupported;
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		}
 		return 0;
 	}
@@ -1965,7 +1965,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 	hw->phy.id = 0;
 	hw->phy.type = ixgbe_phy_unknown;
 
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1985,14 +1985,14 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 	u16 sfp_type = hw->phy.sfp_type;
 
 	if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 
 	if ((hw->device_id == IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM) &&
 	    (hw->phy.sfp_type == ixgbe_sfp_type_da_cu))
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	/*
 	 * Limiting active cables and 1G Phys must be initialized as
@@ -2013,11 +2013,11 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 	if (hw->eeprom.ops.read(hw, IXGBE_PHY_INIT_OFFSET_NL, list_offset)) {
 		hw_err(hw, "eeprom read at %d failed\n",
 		       IXGBE_PHY_INIT_OFFSET_NL);
-		return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT;
+		return -EIO;
 	}
 
 	if ((!*list_offset) || (*list_offset == 0xFFFF))
-		return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT;
+		return -EIO;
 
 	/* Shift offset to first ID word */
 	(*list_offset)++;
@@ -2036,7 +2036,7 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 				goto err_phy;
 			if ((!*data_offset) || (*data_offset == 0xFFFF)) {
 				hw_dbg(hw, "SFP+ module not supported\n");
-				return IXGBE_ERR_SFP_NOT_SUPPORTED;
+				return -EOPNOTSUPP;
 			} else {
 				break;
 			}
@@ -2049,14 +2049,14 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 
 	if (sfp_id == IXGBE_PHY_INIT_END_NL) {
 		hw_dbg(hw, "No matching SFP+ module found\n");
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
 
 err_phy:
 	hw_err(hw, "eeprom read at offset %d failed\n", *list_offset);
-	return IXGBE_ERR_PHY;
+	return -EIO;
 }
 
 /**
@@ -2151,7 +2151,7 @@ static s32 ixgbe_read_i2c_byte_generic_int(struct ixgbe_hw *hw, u8 byte_offset,
 
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		ixgbe_i2c_start(hw);
 
@@ -2267,7 +2267,7 @@ static s32 ixgbe_write_i2c_byte_generic_int(struct ixgbe_hw *hw, u8 byte_offset,
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
 
 	if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	do {
 		ixgbe_i2c_start(hw);
@@ -2509,7 +2509,7 @@ static s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw)
 
 	if (ack == 1) {
 		hw_dbg(hw, "I2C ack was not received.\n");
-		status = IXGBE_ERR_I2C;
+		status = -EIO;
 	}
 
 	ixgbe_lower_i2c_clk(hw, &i2cctl);
@@ -2581,7 +2581,7 @@ static s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data)
 		udelay(IXGBE_I2C_T_LOW);
 	} else {
 		hw_dbg(hw, "I2C data was not set to %X\n", data);
-		return IXGBE_ERR_I2C;
+		return -EIO;
 	}
 
 	return 0;
@@ -2677,7 +2677,7 @@ static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data)
 	*i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL(hw));
 	if (data != ixgbe_get_i2c_data(hw, i2cctl)) {
 		hw_dbg(hw, "Error - I2C data was not set to %X.\n", data);
-		return IXGBE_ERR_I2C;
+		return -EIO;
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index f8c6ca9fea82..9880ae914c42 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -1325,7 +1325,7 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
 		break;
 	default:
 		e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
-		retval = IXGBE_ERR_MBX;
+		retval = -EIO;
 		break;
 	}
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 91c9ecca4cb5..61b9774b3d31 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3665,45 +3665,6 @@ struct ixgbe_info {
 	const u32			*mvals;
 };
 
-
-/* Error Codes */
-#define IXGBE_ERR_EEPROM                        -1
-#define IXGBE_ERR_EEPROM_CHECKSUM               -2
-#define IXGBE_ERR_PHY                           -3
-#define IXGBE_ERR_CONFIG                        -4
-#define IXGBE_ERR_PARAM                         -5
-#define IXGBE_ERR_MAC_TYPE                      -6
-#define IXGBE_ERR_UNKNOWN_PHY                   -7
-#define IXGBE_ERR_LINK_SETUP                    -8
-#define IXGBE_ERR_ADAPTER_STOPPED               -9
-#define IXGBE_ERR_INVALID_MAC_ADDR              -10
-#define IXGBE_ERR_DEVICE_NOT_SUPPORTED          -11
-#define IXGBE_ERR_PRIMARY_REQUESTS_PENDING      -12
-#define IXGBE_ERR_INVALID_LINK_SETTINGS         -13
-#define IXGBE_ERR_AUTONEG_NOT_COMPLETE          -14
-#define IXGBE_ERR_RESET_FAILED                  -15
-#define IXGBE_ERR_SWFW_SYNC                     -16
-#define IXGBE_ERR_PHY_ADDR_INVALID              -17
-#define IXGBE_ERR_I2C                           -18
-#define IXGBE_ERR_SFP_NOT_SUPPORTED             -19
-#define IXGBE_ERR_SFP_NOT_PRESENT               -20
-#define IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT       -21
-#define IXGBE_ERR_NO_SAN_ADDR_PTR               -22
-#define IXGBE_ERR_FDIR_REINIT_FAILED            -23
-#define IXGBE_ERR_EEPROM_VERSION                -24
-#define IXGBE_ERR_NO_SPACE                      -25
-#define IXGBE_ERR_OVERTEMP                      -26
-#define IXGBE_ERR_FC_NOT_NEGOTIATED             -27
-#define IXGBE_ERR_FC_NOT_SUPPORTED              -28
-#define IXGBE_ERR_SFP_SETUP_NOT_COMPLETE        -30
-#define IXGBE_ERR_PBA_SECTION                   -31
-#define IXGBE_ERR_INVALID_ARGUMENT              -32
-#define IXGBE_ERR_HOST_INTERFACE_COMMAND        -33
-#define IXGBE_ERR_FDIR_CMD_INCOMPLETE		-38
-#define IXGBE_ERR_FW_RESP_INVALID		-39
-#define IXGBE_ERR_TOKEN_RETRY			-40
-#define IXGBE_NOT_IMPLEMENTED                   0x7FFFFFFF
-
 #define IXGBE_FUSES0_GROUP(_i)		(0x11158 + ((_i) * 4))
 #define IXGBE_FUSES0_300MHZ		BIT(5)
 #define IXGBE_FUSES0_REV_MASK		(3u << 6)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index e127070a59f4..57a912e4653f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -84,7 +84,7 @@ s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
 	if (status) {
 		hw_dbg(hw, "semaphore failed with %d", status);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	ctrl = IXGBE_CTRL_RST;
@@ -103,7 +103,7 @@ s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 	msleep(100);
@@ -220,7 +220,7 @@ static s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data)
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_read_eerd_generic(hw, offset, data);
 
@@ -243,7 +243,7 @@ static s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
 
@@ -264,7 +264,7 @@ static s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data)
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_eewr_generic(hw, offset, data);
 
@@ -287,7 +287,7 @@ static s32 ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_eewr_buffer_generic(hw, offset, words, data);
 
@@ -324,7 +324,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 	for (i = 0; i < checksum_last_word; i++) {
 		if (ixgbe_read_eerd_generic(hw, i, &word)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 		checksum += word;
 	}
@@ -349,7 +349,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 
 		if (ixgbe_read_eerd_generic(hw, pointer, &length)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		/* Skip pointer section if length is invalid. */
@@ -360,7 +360,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 		for (j = pointer + 1; j <= pointer + length; j++) {
 			if (ixgbe_read_eerd_generic(hw, j, &word)) {
 				hw_dbg(hw, "EEPROM read failed\n");
-				return IXGBE_ERR_EEPROM;
+				return -EIO;
 			}
 			checksum += word;
 		}
@@ -397,7 +397,7 @@ static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw,
 	}
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = hw->eeprom.ops.calc_checksum(hw);
 	if (status < 0)
@@ -418,7 +418,7 @@ static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw,
 	 */
 	if (read_checksum != checksum) {
 		hw_dbg(hw, "Invalid EEPROM checksum");
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 	}
 
 	/* If the user cares, return the calculated checksum */
@@ -455,7 +455,7 @@ static s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw)
 	}
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return  IXGBE_ERR_SWFW_SYNC;
+		return  -EBUSY;
 
 	status = hw->eeprom.ops.calc_checksum(hw);
 	if (status < 0)
@@ -490,7 +490,7 @@ static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw)
 	s32 status;
 
 	status = ixgbe_poll_flash_update_done_X540(hw);
-	if (status == IXGBE_ERR_EEPROM) {
+	if (status == -EIO) {
 		hw_dbg(hw, "Flash update time out\n");
 		return status;
 	}
@@ -540,7 +540,7 @@ static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw)
 			return 0;
 		udelay(5);
 	}
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -575,7 +575,7 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 		 * SW_FW_SYNC bits (not just NVM)
 		 */
 		if (ixgbe_get_swfw_sync_semaphore(hw))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw));
 		if (!(swfw_sync & (fwmask | swmask | hwmask))) {
@@ -599,7 +599,7 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 	 * bits in the SW_FW_SYNC register.
 	 */
 	if (ixgbe_get_swfw_sync_semaphore(hw))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw));
 	if (swfw_sync & (fwmask | hwmask)) {
 		swfw_sync |= swmask;
@@ -622,11 +622,11 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 			rmask |= IXGBE_GSSR_I2C_MASK;
 		ixgbe_release_swfw_sync_X540(hw, rmask);
 		ixgbe_release_swfw_sync_semaphore(hw);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 	ixgbe_release_swfw_sync_semaphore(hw);
 
-	return IXGBE_ERR_SWFW_SYNC;
+	return -EBUSY;
 }
 
 /**
@@ -680,7 +680,7 @@ static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw)
 	if (i == timeout) {
 		hw_dbg(hw,
 		       "Software semaphore SMBI between device drivers not granted.\n");
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	/* Now get the semaphore between SW/FW through the REGSMP bit */
@@ -697,7 +697,7 @@ static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw)
 	 */
 	hw_dbg(hw, "REGSMP Software NVM semaphore not granted\n");
 	ixgbe_release_swfw_sync_semaphore(hw);
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -768,7 +768,7 @@ s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index)
 	bool link_up;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Link should be up in order for the blink bit in the LED control
 	 * register to work. Force link and speed in the MAC if link is down.
@@ -804,7 +804,7 @@ s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index)
 	u32 ledctl_reg;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Restore the LED to its default value. */
 	ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index 59dd38dd8248..e479235042ca 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -206,13 +206,13 @@ static s32 ixgbe_reset_cs4227(struct ixgbe_hw *hw)
 	}
 	if (retry == IXGBE_CS4227_RETRIES) {
 		hw_err(hw, "CS4227 reset did not complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value);
 	if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) {
 		hw_err(hw, "CS4227 EEPROM did not load successfully\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -350,13 +350,13 @@ static s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw)
 static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
 				     u32 device_type, u16 *phy_data)
 {
-	return IXGBE_NOT_IMPLEMENTED;
+	return -EOPNOTSUPP;
 }
 
 static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
 				      u32 device_type, u16 phy_data)
 {
-	return IXGBE_NOT_IMPLEMENTED;
+	return -EOPNOTSUPP;
 }
 
 /**
@@ -463,7 +463,7 @@ s32 ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
 		--retries;
 	} while (retries > 0);
 
-	return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+	return -EIO;
 }
 
 static const struct {
@@ -511,7 +511,7 @@ static s32 ixgbe_get_phy_id_fw(struct ixgbe_hw *hw)
 	hw->phy.id |= phy_id_lo & IXGBE_PHY_REVISION_MASK;
 	hw->phy.revision = phy_id_lo & ~IXGBE_PHY_REVISION_MASK;
 	if (!hw->phy.id || hw->phy.id == IXGBE_PHY_REVISION_MASK)
-		return IXGBE_ERR_PHY_ADDR_INVALID;
+		return -EFAULT;
 
 	hw->phy.autoneg_advertised = hw->phy.speeds_supported;
 	hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_100_FULL |
@@ -568,7 +568,7 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
 
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	switch (hw->fc.requested_mode) {
@@ -677,7 +677,7 @@ static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
 		*ctrl = command;
 	if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
 		hw_dbg(hw, "IOSF wait timed out\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -716,7 +716,7 @@ static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
 		hw_dbg(hw, "Failed to read, error %x\n", error);
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	if (!ret)
@@ -751,9 +751,9 @@ static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
 		return 0;
 	if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
-		return IXGBE_ERR_FW_RESP_INVALID;
+		return -EIO;
 
-	return IXGBE_ERR_TOKEN_RETRY;
+	return -EAGAIN;
 }
 
 /**
@@ -779,7 +779,7 @@ static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
 		return status;
 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
 		return 0;
-	return IXGBE_ERR_FW_RESP_INVALID;
+	return -EIO;
 }
 
 /**
@@ -943,7 +943,7 @@ static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
 		local_buffer = buf;
 	} else {
 		if (buffer_size < ptr)
-			return  IXGBE_ERR_PARAM;
+			return  -EINVAL;
 		local_buffer = &buffer[ptr];
 	}
 
@@ -961,7 +961,7 @@ static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
 	}
 
 	if (buffer && ((u32)start + (u32)length > buffer_size))
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	for (i = start; length; i++, length--) {
 		if (i == bufsz && !buffer) {
@@ -1013,7 +1013,7 @@ static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
 		local_buffer = eeprom_ptrs;
 	} else {
 		if (buffer_size < IXGBE_EEPROM_LAST_WORD)
-			return IXGBE_ERR_PARAM;
+			return -EINVAL;
 		local_buffer = buffer;
 	}
 
@@ -1149,7 +1149,7 @@ static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
 	 * calculated checksum
 	 */
 	if (read_checksum != checksum) {
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 		hw_dbg(hw, "Invalid EEPROM checksum");
 	}
 
@@ -1204,7 +1204,7 @@ static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
 	} else {
 		hw_dbg(hw, "write ee hostif failed to get semaphore");
-		status = IXGBE_ERR_SWFW_SYNC;
+		status = -EBUSY;
 	}
 
 	return status;
@@ -1415,7 +1415,7 @@ static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
 		hw_dbg(hw, "Failed to write, error %x\n", error);
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 out:
@@ -1558,7 +1558,7 @@ static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 
 	/* iXFI is only supported with X552 */
 	if (mac->type != ixgbe_mac_X550EM_x)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 
 	/* Disable AN and force speed to 10G Serial. */
 	status = ixgbe_read_iosf_sb_reg_x550(hw,
@@ -1580,7 +1580,7 @@ static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 		break;
 	default:
 		/* Other link speeds are not supported by internal KR PHY. */
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 	}
 
 	status = ixgbe_write_iosf_sb_reg_x550(hw,
@@ -1611,7 +1611,7 @@ static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
 {
 	switch (hw->phy.sfp_type) {
 	case ixgbe_sfp_type_not_present:
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	case ixgbe_sfp_type_da_cu_core0:
 	case ixgbe_sfp_type_da_cu_core1:
 		*linear = true;
@@ -1630,7 +1630,7 @@ static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
 	case ixgbe_sfp_type_1g_cu_core0:
 	case ixgbe_sfp_type_1g_cu_core1:
 	default:
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
@@ -1660,7 +1660,7 @@ ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
 	 * there is no reason to configure CS4227 and SFP not present error is
 	 * not accepted in the setup MAC link flow.
 	 */
-	if (status == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (status == -ENOENT)
 		return 0;
 
 	if (status)
@@ -1718,7 +1718,7 @@ static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 		break;
 	default:
 		/* Other link speeds are not supported by internal PHY. */
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 	}
 
 	(void)mac->ops.write_iosf_sb_reg(hw,
@@ -1803,7 +1803,7 @@ ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	/* If no SFP module present, then return success. Return success since
 	 * SFP not present error is not excepted in the setup MAC link flow.
 	 */
-	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (ret_val == -ENOENT)
 		return 0;
 
 	if (ret_val)
@@ -1853,7 +1853,7 @@ ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	/* If no SFP module present, then return success. Return success since
 	 * SFP not present error is not excepted in the setup MAC link flow.
 	 */
-	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (ret_val == -ENOENT)
 		return 0;
 
 	if (ret_val)
@@ -1863,7 +1863,7 @@ ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	ixgbe_setup_kr_speed_x550em(hw, speed);
 
 	if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
-		return IXGBE_ERR_PHY_ADDR_INVALID;
+		return -EFAULT;
 
 	/* Get external PHY SKU id */
 	ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
@@ -1962,7 +1962,7 @@ static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
 	u16 i, autoneg_status;
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 
 	status = ixgbe_check_mac_link_generic(hw, speed, link_up,
 					      link_up_wait_to_complete);
@@ -2145,7 +2145,7 @@ static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
  */
 static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
 {
-	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+	s32 status = -EIO;
 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
 	ixgbe_link_speed speed;
 	bool link_up;
@@ -2165,7 +2165,7 @@ static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
 	/* Check if auto-negotiation has completed */
 	status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
 	if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
-		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+		status = -EIO;
 		goto out;
 	}
 
@@ -2699,7 +2699,7 @@ static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
 	u16 speed;
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 
 	if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
 	      !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
@@ -2742,7 +2742,7 @@ static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
 		break;
 	default:
 		/* Internal PHY does not support anything else */
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	return ixgbe_setup_ixfi_x550em(hw, &force_speed);
@@ -2774,7 +2774,7 @@ static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
 	u16 phy_data;
 
 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
@@ -2796,7 +2796,7 @@ static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
 	u16 phy_data;
 
 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
@@ -2820,8 +2820,9 @@ static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
  *
  *  Sends driver version number to firmware through the manageability
  *  block.  On success return 0
- *  else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  else returns -EBUSY when encountering an error acquiring
+ *  semaphore, -EIO when command fails or -ENIVAL when incorrect
+ *  params passed.
  **/
 static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 				     u8 build, u8 sub, u16 len,
@@ -2832,7 +2833,7 @@ static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 	int i;
 
 	if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 
 	fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
 	fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
@@ -2857,7 +2858,7 @@ static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 
 		if (fw_cmd.hdr.cmd_or_resp.ret_status !=
 		    FW_CEM_RESP_STATUS_SUCCESS)
-			return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+			return -EIO;
 		return 0;
 	}
 
@@ -2914,7 +2915,7 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 	/* Validate the requested mode */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	/* 10gig parts do not have a word in the EEPROM to determine the
@@ -2949,7 +2950,7 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_err(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (hw->device_id) {
@@ -2993,8 +2994,8 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
 {
 	u32 link_s1, lp_an_page_low, an_cntl_1;
-	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
 	ixgbe_link_speed speed;
+	s32 status = -EIO;
 	bool link_up;
 
 	/* AN should have completed when the cable was plugged in.
@@ -3020,7 +3021,7 @@ static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
 
 	if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
-		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+		status = -EIO;
 		goto out;
 	}
 
@@ -3257,8 +3258,8 @@ static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
 
 	/* Identify the PHY or SFP module */
 	ret_val = phy->ops.identify(hw);
-	if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED ||
-	    ret_val == IXGBE_ERR_PHY_ADDR_INVALID)
+	if (ret_val == -EOPNOTSUPP ||
+	    ret_val == -EFAULT)
 		return ret_val;
 
 	/* Setup function pointers based on detected hardware */
@@ -3466,8 +3467,8 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 
 	/* PHY ops must be identified and initialized prior to reset */
 	status = hw->phy.ops.init(hw);
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
-	    status == IXGBE_ERR_PHY_ADDR_INVALID)
+	if (status == -EOPNOTSUPP ||
+	    status == -EFAULT)
 		return status;
 
 	/* start the external PHY */
@@ -3483,7 +3484,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 		hw->phy.sfp_setup_needed = false;
 	}
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Reset PHY */
@@ -3507,7 +3508,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
 	if (status) {
 		hw_dbg(hw, "semaphore failed with %d", status);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
@@ -3525,7 +3526,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -3621,7 +3622,7 @@ static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
 	/* Validate the requested mode */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	if (hw->fc.requested_mode == ixgbe_fc_default)
@@ -3678,7 +3679,7 @@ static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_err(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	status = hw->mac.ops.write_iosf_sb_reg(hw,
@@ -3774,7 +3775,7 @@ static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
 			return 0;
 		if (hmask)
 			ixgbe_release_swfw_sync_X540(hw, hmask);
-		if (status != IXGBE_ERR_TOKEN_RETRY)
+		if (status != -EAGAIN)
 			return status;
 		msleep(FW_PHY_TOKEN_DELAY);
 	}
@@ -3818,7 +3819,7 @@ static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
 
@@ -3844,7 +3845,7 @@ static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
 	hw->mac.ops.release_swfw_sync(hw, mask);
-- 
2.31.1

_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

[PATCH iwl-next v4 2/2] ixgbe: Refactor returning internal error codes

[Jedrzej Jagielski]

Change returning codes to the kernel ones instead of
the internal ones for the entire ixgbe driver.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v3: do not use ENOSYS; rebase
---
 .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++---
 .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++----
 .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++----------
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  26 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  |  84 +++++-----
 .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  39 -----
 drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 +++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 109 ++++++-------
 12 files changed, 266 insertions(+), 317 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 0470b69d834c..6835d5f18753 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -123,14 +123,14 @@ static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
 		if (ret_val)
 			return ret_val;
 		if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 
 		/* Check to see if SFP+ module is supported */
 		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
 							    &list_offset,
 							    &data_offset);
 		if (ret_val)
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		break;
 	default:
 		break;
@@ -213,7 +213,7 @@ static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
 		break;
 
 	default:
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	return 0;
@@ -283,7 +283,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 
 	/* Validate the water mark configuration */
 	if (!hw->fc.pause_time)
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 
 	/* Low water mark of zero causes XOFF floods */
 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
@@ -292,7 +292,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 			if (!hw->fc.low_water[i] ||
 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
 				hw_dbg(hw, "Invalid water mark configuration\n");
-				return IXGBE_ERR_INVALID_LINK_SETTINGS;
+				return -EINVAL;
 			}
 		}
 	}
@@ -369,7 +369,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Set 802.3x based flow control settings. */
@@ -438,7 +438,7 @@ static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
 				msleep(100);
 			}
 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+				status = -EIO;
 				hw_dbg(hw, "Autonegotiation did not complete.\n");
 			}
 		}
@@ -478,7 +478,7 @@ static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
 
 	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
 		hw_dbg(hw, "Link was indicated but link is down\n");
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	return 0;
@@ -594,7 +594,7 @@ static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
 	speed &= link_capabilities;
 
 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 
 	/* Set KX4/KX support according to speed requested */
 	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
@@ -701,9 +701,9 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
 
 		/* Init PHY and function pointers, perform SFP setup */
 		phy_status = hw->phy.ops.init(hw);
-		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+		if (phy_status == -EOPNOTSUPP)
 			return phy_status;
-		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
+		if (phy_status == -ENOENT)
 			goto mac_reset_top;
 
 		hw->phy.ops.reset(hw);
@@ -727,7 +727,7 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
 		udelay(1);
 	}
 	if (ctrl & IXGBE_CTRL_RST) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -789,7 +789,7 @@ static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
@@ -814,7 +814,7 @@ static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
@@ -845,7 +845,7 @@ static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	u32 vftabyte;
 
 	if (vlan > 4095)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Determine 32-bit word position in array */
 	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
@@ -964,7 +964,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 		gssr = IXGBE_GSSR_PHY0_SM;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	if (hw->phy.type == ixgbe_phy_nl) {
 		/*
@@ -993,7 +993,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 
 		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
 			hw_dbg(hw, "EEPROM read did not pass.\n");
-			status = IXGBE_ERR_SFP_NOT_PRESENT;
+			status = -ENOENT;
 			goto out;
 		}
 
@@ -1003,7 +1003,7 @@ static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 
 		*eeprom_data = (u8)(sfp_data >> 8);
 	} else {
-		status = IXGBE_ERR_PHY;
+		status = -EIO;
 	}
 
 out:
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 58ea959a4482..339e106a5732 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -117,7 +117,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 							IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
 			goto setup_sfp_err;
@@ -144,7 +144,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 
 		if (ret_val) {
 			hw_dbg(hw, " sfp module setup not complete\n");
-			return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
+			return -EIO;
 		}
 	}
 
@@ -159,7 +159,7 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
 	usleep_range(hw->eeprom.semaphore_delay * 1000,
 		     hw->eeprom.semaphore_delay * 2000);
 	hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
-	return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
+	return -EIO;
 }
 
 /**
@@ -184,7 +184,7 @@ static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 					IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		*locked = true;
 	}
@@ -219,7 +219,7 @@ static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
 		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
 					IXGBE_GSSR_MAC_CSR_SM);
 		if (ret_val)
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		locked = true;
 	}
@@ -400,7 +400,7 @@ static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
 		break;
 
 	default:
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 	}
 
 	if (hw->phy.multispeed_fiber) {
@@ -541,7 +541,7 @@ static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
 				msleep(100);
 			}
 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+				status = -EIO;
 				hw_dbg(hw, "Autoneg did not complete.\n");
 			}
 		}
@@ -794,7 +794,7 @@ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
 	speed &= link_capabilities;
 
 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 
 	/* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
 	if (hw->mac.orig_link_settings_stored)
@@ -861,8 +861,7 @@ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
 					msleep(100);
 				}
 				if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
-					status =
-						IXGBE_ERR_AUTONEG_NOT_COMPLETE;
+					status = -EIO;
 					hw_dbg(hw, "Autoneg did not complete.\n");
 				}
 			}
@@ -927,7 +926,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 	/* Identify PHY and related function pointers */
 	status = hw->phy.ops.init(hw);
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Setup SFP module if there is one present. */
@@ -936,7 +935,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 		hw->phy.sfp_setup_needed = false;
 	}
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Reset PHY */
@@ -974,7 +973,7 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -1093,7 +1092,7 @@ static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
 		udelay(10);
 	}
 
-	return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
+	return -EIO;
 }
 
 /**
@@ -1155,7 +1154,7 @@ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
 	}
 	if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
 		hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
-		return IXGBE_ERR_FDIR_REINIT_FAILED;
+		return -EIO;
 	}
 
 	/* Clear FDIR statistics registers (read to clear) */
@@ -1387,7 +1386,7 @@ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on flow type input\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* configure FDIRCMD register */
@@ -1546,7 +1545,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on vm pool mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
@@ -1555,14 +1554,14 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		if (input_mask->formatted.dst_port ||
 		    input_mask->formatted.src_port) {
 			hw_dbg(hw, " Error on src/dst port mask\n");
-			return IXGBE_ERR_CONFIG;
+			return -EIO;
 		}
 		break;
 	case IXGBE_ATR_L4TYPE_MASK:
 		break;
 	default:
 		hw_dbg(hw, " Error on flow type mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
@@ -1583,7 +1582,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on VLAN mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch ((__force u16)input_mask->formatted.flex_bytes & 0xFFFF) {
@@ -1595,7 +1594,7 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 		break;
 	default:
 		hw_dbg(hw, " Error on flexible byte mask\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
@@ -1824,7 +1823,7 @@ static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
 
 	/* Return error if SFP module has been detected but is not supported */
 	if (hw->phy.type == ixgbe_phy_sfp_unsupported)
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	return status;
 }
@@ -1863,13 +1862,13 @@ static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
  *  Verifies that installed the firmware version is 0.6 or higher
  *  for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
  *
- *  Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
- *  if the FW version is not supported.
+ *  Return: -EACCES if the FW is not present or if the FW version is
+ *  not supported.
  **/
 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 {
-	s32 status = IXGBE_ERR_EEPROM_VERSION;
 	u16 fw_offset, fw_ptp_cfg_offset;
+	s32 status = -EACCES;
 	u16 offset;
 	u16 fw_version = 0;
 
@@ -1883,7 +1882,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 		goto fw_version_err;
 
 	if (fw_offset == 0 || fw_offset == 0xFFFF)
-		return IXGBE_ERR_EEPROM_VERSION;
+		return -EACCES;
 
 	/* get the offset to the Pass Through Patch Configuration block */
 	offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
@@ -1891,7 +1890,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 		goto fw_version_err;
 
 	if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
-		return IXGBE_ERR_EEPROM_VERSION;
+		return -EACCES;
 
 	/* get the firmware version */
 	offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
@@ -1905,7 +1904,7 @@ static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
 
 fw_version_err:
 	hw_err(hw, "eeprom read at offset %d failed\n", offset);
-	return IXGBE_ERR_EEPROM_VERSION;
+	return -EACCES;
 }
 
 /**
@@ -2038,7 +2037,7 @@ static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
 
 	if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
 		hw_dbg(hw, "auto negotiation not completed\n");
-		ret_val = IXGBE_ERR_RESET_FAILED;
+		ret_val = -EIO;
 		goto reset_pipeline_out;
 	}
 
@@ -2087,7 +2086,7 @@ static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
 
 		if (!timeout) {
 			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
-			status = IXGBE_ERR_I2C;
+			status = -EIO;
 			goto release_i2c_access;
 		}
 	}
@@ -2141,7 +2140,7 @@ static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
 
 		if (!timeout) {
 			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
-			status = IXGBE_ERR_I2C;
+			status = -EIO;
 			goto release_i2c_access;
 		}
 	}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 7d7bd44448c4..876d5b497049 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -124,7 +124,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
 	 */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	/*
@@ -215,7 +215,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	if (hw->mac.type != ixgbe_mac_X540) {
@@ -500,7 +500,7 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 
 	if (pba_num == NULL) {
 		hw_dbg(hw, "PBA string buffer was null\n");
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
@@ -526,7 +526,7 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 		/* we will need 11 characters to store the PBA */
 		if (pba_num_size < 11) {
 			hw_dbg(hw, "PBA string buffer too small\n");
-			return IXGBE_ERR_NO_SPACE;
+			return -ENOSPC;
 		}
 
 		/* extract hex string from data and pba_ptr */
@@ -563,13 +563,13 @@ s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
 
 	if (length == 0xFFFF || length == 0) {
 		hw_dbg(hw, "NVM PBA number section invalid length\n");
-		return IXGBE_ERR_PBA_SECTION;
+		return -EIO;
 	}
 
 	/* check if pba_num buffer is big enough */
 	if (pba_num_size  < (((u32)length * 2) - 1)) {
 		hw_dbg(hw, "PBA string buffer too small\n");
-		return IXGBE_ERR_NO_SPACE;
+		return -ENOSPC;
 	}
 
 	/* trim pba length from start of string */
@@ -805,7 +805,7 @@ s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
 	u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
@@ -826,7 +826,7 @@ s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
 	u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn off the LED, set mode to OFF. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
@@ -903,11 +903,8 @@ s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset + words > hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || (offset + words > hw->eeprom.word_size))
+		return -EINVAL;
 
 	/*
 	 * The EEPROM page size cannot be queried from the chip. We do lazy
@@ -961,7 +958,7 @@ static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
 
 	if (ixgbe_ready_eeprom(hw) != 0) {
 		ixgbe_release_eeprom(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	for (i = 0; i < words; i++) {
@@ -1027,7 +1024,7 @@ s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
 	hw->eeprom.ops.init_params(hw);
 
 	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+		return -EINVAL;
 
 	return ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data);
 }
@@ -1049,11 +1046,8 @@ s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset + words > hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || (offset + words > hw->eeprom.word_size))
+		return -EINVAL;
 
 	/*
 	 * We cannot hold synchronization semaphores for too long
@@ -1098,7 +1092,7 @@ static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
 
 	if (ixgbe_ready_eeprom(hw) != 0) {
 		ixgbe_release_eeprom(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	for (i = 0; i < words; i++) {
@@ -1141,7 +1135,7 @@ s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
 	hw->eeprom.ops.init_params(hw);
 
 	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+		return -EINVAL;
 
 	return ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
 }
@@ -1164,11 +1158,8 @@ s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || offset >= hw->eeprom.word_size)
+		return -EINVAL;
 
 	for (i = 0; i < words; i++) {
 		eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
@@ -1261,11 +1252,8 @@ s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset,
 
 	hw->eeprom.ops.init_params(hw);
 
-	if (words == 0)
-		return IXGBE_ERR_INVALID_ARGUMENT;
-
-	if (offset >= hw->eeprom.word_size)
-		return IXGBE_ERR_EEPROM;
+	if (words == 0 || offset >= hw->eeprom.word_size)
+		return -EINVAL;
 
 	for (i = 0; i < words; i++) {
 		eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
@@ -1327,7 +1315,7 @@ static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
 		}
 		udelay(5);
 	}
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -1343,7 +1331,7 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
 	u32 i;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
 
@@ -1365,7 +1353,7 @@ static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
 		hw_dbg(hw, "Could not acquire EEPROM grant\n");
 
 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	/* Setup EEPROM for Read/Write */
@@ -1418,7 +1406,7 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
 		swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
 		if (swsm & IXGBE_SWSM_SMBI) {
 			hw_dbg(hw, "Software semaphore SMBI between device drivers not granted.\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 	}
 
@@ -1446,7 +1434,7 @@ static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
 	if (i >= timeout) {
 		hw_dbg(hw, "SWESMBI Software EEPROM semaphore not granted.\n");
 		ixgbe_release_eeprom_semaphore(hw);
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	return 0;
@@ -1502,7 +1490,7 @@ static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
 	 */
 	if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
 		hw_dbg(hw, "SPI EEPROM Status error\n");
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	return 0;
@@ -1714,7 +1702,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 	for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
 		if (hw->eeprom.ops.read(hw, i, &pointer)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		/* If the pointer seems invalid */
@@ -1723,7 +1711,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 
 		if (hw->eeprom.ops.read(hw, pointer, &length)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		if (length == 0xFFFF || length == 0)
@@ -1732,7 +1720,7 @@ s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
 		for (j = pointer + 1; j <= pointer + length; j++) {
 			if (hw->eeprom.ops.read(hw, j, &word)) {
 				hw_dbg(hw, "EEPROM read failed\n");
-				return IXGBE_ERR_EEPROM;
+				return -EIO;
 			}
 			checksum += word;
 		}
@@ -1785,7 +1773,7 @@ s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
 	 * calculated checksum
 	 */
 	if (read_checksum != checksum)
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 
 	/* If the user cares, return the calculated checksum */
 	if (checksum_val)
@@ -1844,7 +1832,7 @@ s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
 	/* Make sure we are using a valid rar index range */
 	if (index >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", index);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	/* setup VMDq pool selection before this RAR gets enabled */
@@ -1896,7 +1884,7 @@ s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
 	/* Make sure we are using a valid rar index range */
 	if (index >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", index);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	/*
@@ -2145,7 +2133,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 
 	/* Validate the water mark configuration. */
 	if (!hw->fc.pause_time)
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 
 	/* Low water mark of zero causes XOFF floods */
 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
@@ -2154,7 +2142,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 			if (!hw->fc.low_water[i] ||
 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
 				hw_dbg(hw, "Invalid water mark configuration\n");
-				return IXGBE_ERR_INVALID_LINK_SETTINGS;
+				return -EINVAL;
 			}
 		}
 	}
@@ -2211,7 +2199,7 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_dbg(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	/* Set 802.3x based flow control settings. */
@@ -2268,7 +2256,7 @@ s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
 		       u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
 {
 	if ((!(adv_reg)) ||  (!(lp_reg)))
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EINVAL;
 
 	if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
 		/*
@@ -2320,7 +2308,7 @@ static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
 	linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
 	if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
 	    (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1))
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EIO;
 
 	pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
 	pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
@@ -2352,12 +2340,12 @@ static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
 	 */
 	links = IXGBE_READ_REG(hw, IXGBE_LINKS);
 	if ((links & IXGBE_LINKS_KX_AN_COMP) == 0)
-		return IXGBE_ERR_FC_NOT_NEGOTIATED;
+		return -EIO;
 
 	if (hw->mac.type == ixgbe_mac_82599EB) {
 		links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
 		if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0)
-			return IXGBE_ERR_FC_NOT_NEGOTIATED;
+			return -EIO;
 	}
 	/*
 	 * Read the 10g AN autoc and LP ability registers and resolve
@@ -2406,8 +2394,8 @@ static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
  **/
 void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
 {
-	s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
 	ixgbe_link_speed speed;
+	s32 ret_val = -EIO;
 	bool link_up;
 
 	/*
@@ -2509,7 +2497,7 @@ static u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw)
  *  @hw: pointer to hardware structure
  *
  *  Disables PCI-Express primary access and verifies there are no pending
- *  requests. IXGBE_ERR_PRIMARY_REQUESTS_PENDING is returned if primary disable
+ *  requests. -EALREADY is returned if primary disable
  *  bit hasn't caused the primary requests to be disabled, else 0
  *  is returned signifying primary requests disabled.
  **/
@@ -2574,7 +2562,7 @@ static s32 ixgbe_disable_pcie_primary(struct ixgbe_hw *hw)
 	}
 
 	hw_dbg(hw, "PCIe transaction pending bit also did not clear.\n");
-	return IXGBE_ERR_PRIMARY_REQUESTS_PENDING;
+	return -EALREADY;
 }
 
 /**
@@ -2599,7 +2587,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 		 * SW_FW_SYNC bits (not just NVM)
 		 */
 		if (ixgbe_get_eeprom_semaphore(hw))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
 		if (!(gssr & (fwmask | swmask))) {
@@ -2619,7 +2607,7 @@ s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
 		ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask));
 
 	usleep_range(5000, 10000);
-	return IXGBE_ERR_SWFW_SYNC;
+	return -EBUSY;
 }
 
 /**
@@ -2756,7 +2744,7 @@ s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
 	s32 ret_val;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/*
 	 * Link must be up to auto-blink the LEDs;
@@ -2802,7 +2790,7 @@ s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
 	s32 ret_val;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
 	if (ret_val)
@@ -2962,7 +2950,7 @@ s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
@@ -3013,7 +3001,7 @@ s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	/* Make sure we are using a valid rar index range */
 	if (rar >= rar_entries) {
 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	if (vmdq < 32) {
@@ -3090,7 +3078,7 @@ static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
 	 * will simply bypass the VLVF if there are no entries present in the
 	 * VLVF that contain our VLAN
 	 */
-	first_empty_slot = vlvf_bypass ? IXGBE_ERR_NO_SPACE : 0;
+	first_empty_slot = vlvf_bypass ? -ENOSPC : 0;
 
 	/* add VLAN enable bit for comparison */
 	vlan |= IXGBE_VLVF_VIEN;
@@ -3114,7 +3102,7 @@ static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
 	if (!first_empty_slot)
 		hw_dbg(hw, "No space in VLVF.\n");
 
-	return first_empty_slot ? : IXGBE_ERR_NO_SPACE;
+	return first_empty_slot ? : -ENOSPC;
 }
 
 /**
@@ -3134,7 +3122,7 @@ s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	s32 vlvf_index;
 
 	if ((vlan > 4095) || (vind > 63))
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/*
 	 * this is a 2 part operation - first the VFTA, then the
@@ -3610,7 +3598,8 @@ u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
  *
  *  Communicates with the manageability block. On success return 0
  *  else returns semaphore error when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  semaphore, -EINVAL when incorrect patameters passed or -EIO when
+ *  command fails.
  *
  *  This function assumes that the IXGBE_GSSR_SW_MNG_SM semaphore is held
  *  by the caller.
@@ -3623,7 +3612,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 
 	if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
 		hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EINVAL;
 	}
 
 	/* Set bit 9 of FWSTS clearing FW reset indication */
@@ -3634,13 +3623,13 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 	hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
 	if (!(hicr & IXGBE_HICR_EN)) {
 		hw_dbg(hw, "IXGBE_HOST_EN bit disabled.\n");
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EIO;
 	}
 
 	/* Calculate length in DWORDs. We must be DWORD aligned */
 	if (length % sizeof(u32)) {
 		hw_dbg(hw, "Buffer length failure, not aligned to dword");
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 	}
 
 	dword_len = length >> 2;
@@ -3665,7 +3654,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
 	/* Check command successful completion. */
 	if ((timeout && i == timeout) ||
 	    !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV))
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EIO;
 
 	return 0;
 }
@@ -3685,7 +3674,7 @@ s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
  *  in these cases.
  *
  *  Communicates with the manageability block.  On success return 0
- *  else return IXGBE_ERR_HOST_INTERFACE_COMMAND.
+ *  else return -EIO or -EINVAL.
  **/
 s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 				 u32 length, u32 timeout,
@@ -3700,7 +3689,7 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 
 	if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
 		hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
-		return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		return -EINVAL;
 	}
 	/* Take management host interface semaphore */
 	status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
@@ -3730,7 +3719,7 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
 
 	if (length < round_up(buf_len, 4) + hdr_size) {
 		hw_dbg(hw, "Buffer not large enough for reply message.\n");
-		status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
+		status = -EIO;
 		goto rel_out;
 	}
 
@@ -3761,8 +3750,8 @@ s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
  *
  *  Sends driver version number to firmware through the manageability
  *  block.  On success return 0
- *  else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  else returns -EBUSY when encountering an error acquiring
+ *  semaphore or -EIO when command fails.
  **/
 s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
 				 u8 build, u8 sub, __always_unused u16 len,
@@ -3798,7 +3787,7 @@ s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
 		    FW_CEM_RESP_STATUS_SUCCESS)
 			ret_val = 0;
 		else
-			ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND;
+			ret_val = -EIO;
 
 		break;
 	}
@@ -3896,14 +3885,14 @@ static s32 ixgbe_get_ets_data(struct ixgbe_hw *hw, u16 *ets_cfg,
 		return status;
 
 	if ((*ets_offset == 0x0000) || (*ets_offset == 0xFFFF))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = hw->eeprom.ops.read(hw, *ets_offset, ets_cfg);
 	if (status)
 		return status;
 
 	if ((*ets_cfg & IXGBE_ETS_TYPE_MASK) != IXGBE_ETS_TYPE_EMC_SHIFTED)
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	return 0;
 }
@@ -3926,7 +3915,7 @@ s32 ixgbe_get_thermal_sensor_data_generic(struct ixgbe_hw *hw)
 
 	/* Only support thermal sensors attached to physical port 0 */
 	if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
 	if (status)
@@ -3986,7 +3975,7 @@ s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw)
 
 	/* Only support thermal sensors attached to physical port 0 */
 	if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
-		return IXGBE_NOT_IMPLEMENTED;
+		return -EOPNOTSUPP;
 
 	status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
 	if (status)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 4dd897806fa5..e47461f3eaef 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3370,7 +3370,7 @@ static int ixgbe_get_module_eeprom(struct net_device *dev,
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
 	struct ixgbe_hw *hw = &adapter->hw;
-	s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
+	s32 status = -EFAULT;
 	u8 databyte = 0xFF;
 	int i = 0;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 9bff614788a2..40c860de061b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5513,7 +5513,7 @@ static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw)
 {
 	u32 speed;
 	bool autoneg, link_up = false;
-	int ret = IXGBE_ERR_LINK_SETUP;
+	int ret = -EIO;
 
 	if (hw->mac.ops.check_link)
 		ret = hw->mac.ops.check_link(hw, &speed, &link_up, false);
@@ -5984,13 +5984,13 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
 	err = hw->mac.ops.init_hw(hw);
 	switch (err) {
 	case 0:
-	case IXGBE_ERR_SFP_NOT_PRESENT:
-	case IXGBE_ERR_SFP_NOT_SUPPORTED:
+	case -ENOENT:
+	case -EOPNOTSUPP:
 		break;
-	case IXGBE_ERR_PRIMARY_REQUESTS_PENDING:
+	case -EALREADY:
 		e_dev_err("primary disable timed out\n");
 		break;
-	case IXGBE_ERR_EEPROM_VERSION:
+	case -EACCES:
 		/* We are running on a pre-production device, log a warning */
 		e_dev_warn("This device is a pre-production adapter/LOM. "
 			   "Please be aware there may be issues associated with "
@@ -7830,10 +7830,10 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 	adapter->sfp_poll_time = jiffies + IXGBE_SFP_POLL_JIFFIES - 1;
 
 	err = hw->phy.ops.identify_sfp(hw);
-	if (err == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (err == -EOPNOTSUPP)
 		goto sfp_out;
 
-	if (err == IXGBE_ERR_SFP_NOT_PRESENT) {
+	if (err == -ENOENT) {
 		/* If no cable is present, then we need to reset
 		 * the next time we find a good cable. */
 		adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET;
@@ -7859,7 +7859,7 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 	else
 		err = hw->mac.ops.setup_sfp(hw);
 
-	if (err == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (err == -EOPNOTSUPP)
 		goto sfp_out;
 
 	adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
@@ -7868,8 +7868,8 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 sfp_out:
 	clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
 
-	if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) &&
-	    (adapter->netdev->reg_state == NETREG_REGISTERED)) {
+	if (err == -EOPNOTSUPP &&
+	    adapter->netdev->reg_state == NETREG_REGISTERED) {
 		e_dev_err("failed to initialize because an unsupported "
 			  "SFP+ module type was detected.\n");
 		e_dev_err("Reload the driver after installing a "
@@ -10921,9 +10921,9 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	err = hw->mac.ops.reset_hw(hw);
 	hw->phy.reset_if_overtemp = false;
 	ixgbe_set_eee_capable(adapter);
-	if (err == IXGBE_ERR_SFP_NOT_PRESENT) {
+	if (err == -ENOENT) {
 		err = 0;
-	} else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
+	} else if (err == -EOPNOTSUPP) {
 		e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n");
 		e_dev_err("Reload the driver after installing a supported module.\n");
 		goto err_sw_init;
@@ -11142,7 +11142,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* reset the hardware with the new settings */
 	err = hw->mac.ops.start_hw(hw);
-	if (err == IXGBE_ERR_EEPROM_VERSION) {
+	if (err == -EACCES) {
 		/* We are running on a pre-production device, log a warning */
 		e_dev_warn("This device is a pre-production adapter/LOM. "
 			   "Please be aware there may be issues associated "
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
index 5679293e53f7..fe7ef5773369 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
@@ -24,7 +24,7 @@ s32 ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
 		size = mbx->size;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->read(hw, msg, size, mbx_id);
 }
@@ -43,10 +43,10 @@ s32 ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (size > mbx->size)
-		return IXGBE_ERR_MBX;
+		return -EINVAL;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->write(hw, msg, size, mbx_id);
 }
@@ -63,7 +63,7 @@ s32 ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_msg(hw, mbx_id);
 }
@@ -80,7 +80,7 @@ s32 ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_ack(hw, mbx_id);
 }
@@ -97,7 +97,7 @@ s32 ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	return mbx->ops->check_for_rst(hw, mbx_id);
 }
@@ -115,12 +115,12 @@ static s32 ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
 	int countdown = mbx->timeout;
 
 	if (!countdown || !mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	while (mbx->ops->check_for_msg(hw, mbx_id)) {
 		countdown--;
 		if (!countdown)
-			return IXGBE_ERR_MBX;
+			return -EIO;
 		udelay(mbx->usec_delay);
 	}
 
@@ -140,12 +140,12 @@ static s32 ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
 	int countdown = mbx->timeout;
 
 	if (!countdown || !mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	while (mbx->ops->check_for_ack(hw, mbx_id)) {
 		countdown--;
 		if (!countdown)
-			return IXGBE_ERR_MBX;
+			return -EIO;
 		udelay(mbx->usec_delay);
 	}
 
@@ -169,7 +169,7 @@ static s32 ixgbe_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
 	s32 ret_val;
 
 	if (!mbx->ops)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	ret_val = ixgbe_poll_for_msg(hw, mbx_id);
 	if (ret_val)
@@ -197,7 +197,7 @@ static s32 ixgbe_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
 
 	/* exit if either we can't write or there isn't a defined timeout */
 	if (!mbx->ops || !mbx->timeout)
-		return IXGBE_ERR_MBX;
+		return -EIO;
 
 	/* send msg */
 	ret_val = mbx->ops->write(hw, msg, size, mbx_id);
@@ -217,7 +217,7 @@ static s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -238,7 +238,7 @@ static s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -259,7 +259,7 @@ static s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -295,7 +295,7 @@ static s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
 		return 0;
 	}
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
@@ -317,7 +317,7 @@ static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
 	if (p2v_mailbox & IXGBE_PFMAILBOX_PFU)
 		return 0;
 
-	return IXGBE_ERR_MBX;
+	return -EIO;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
index 8f4316b19278..6434c190e7a4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
@@ -7,7 +7,6 @@
 #include "ixgbe_type.h"
 
 #define IXGBE_VFMAILBOX_SIZE        16 /* 16 32 bit words - 64 bytes */
-#define IXGBE_ERR_MBX               -100
 
 #define IXGBE_VFMAILBOX             0x002FC
 #define IXGBE_VFMBMEM               0x00200
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index 343c3ca9b1c9..9fa0676cfff6 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -102,7 +102,7 @@ s32 ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 	csum = ~csum;
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 		ixgbe_i2c_start(hw);
 		/* Device Address and write indication */
 		if (ixgbe_out_i2c_byte_ack(hw, addr))
@@ -150,7 +150,7 @@ s32 ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 			hw_dbg(hw, "I2C byte read combined error.\n");
 	} while (retry < max_retry);
 
-	return IXGBE_ERR_I2C;
+	return -EIO;
 }
 
 /**
@@ -179,7 +179,7 @@ s32 ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 	csum = ~csum;
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 		ixgbe_i2c_start(hw);
 		/* Device Address and write indication */
 		if (ixgbe_out_i2c_byte_ack(hw, addr))
@@ -215,7 +215,7 @@ s32 ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 			hw_dbg(hw, "I2C byte write combined error.\n");
 	} while (retry < max_retry);
 
-	return IXGBE_ERR_I2C;
+	return -EIO;
 }
 
 /**
@@ -262,8 +262,8 @@ static bool ixgbe_probe_phy(struct ixgbe_hw *hw, u16 phy_addr)
  **/
 s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 {
+	u32 status = -EFAULT;
 	u32 phy_addr;
-	u32 status = IXGBE_ERR_PHY_ADDR_INVALID;
 
 	if (!hw->phy.phy_semaphore_mask) {
 		if (hw->bus.lan_id)
@@ -281,7 +281,7 @@ s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw)
 		if (ixgbe_probe_phy(hw, phy_addr))
 			return 0;
 		else
-			return IXGBE_ERR_PHY_ADDR_INVALID;
+			return -EFAULT;
 	}
 
 	for (phy_addr = 0; phy_addr < IXGBE_MAX_PHY_ADDR; phy_addr++) {
@@ -457,7 +457,7 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
 
 	if (ctrl & MDIO_CTRL1_RESET) {
 		hw_dbg(hw, "PHY reset polling failed to complete.\n");
-		return IXGBE_ERR_RESET_FAILED;
+		return -EIO;
 	}
 
 	return 0;
@@ -500,7 +500,7 @@ s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY address command did not complete.\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Address cycle complete, setup and write the read
@@ -527,7 +527,7 @@ s32 ixgbe_read_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY read command didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Read operation is complete.  Get the data
@@ -559,7 +559,7 @@ s32 ixgbe_read_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 						phy_data);
 		hw->mac.ops.release_swfw_sync(hw, gssr);
 	} else {
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	return status;
@@ -604,7 +604,7 @@ s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY address cmd didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/*
@@ -632,7 +632,7 @@ s32 ixgbe_write_phy_reg_mdi(struct ixgbe_hw *hw, u32 reg_addr,
 
 	if ((command & IXGBE_MSCA_MDI_COMMAND) != 0) {
 		hw_dbg(hw, "PHY write cmd didn't complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -657,7 +657,7 @@ s32 ixgbe_write_phy_reg_generic(struct ixgbe_hw *hw, u32 reg_addr,
 						 phy_data);
 		hw->mac.ops.release_swfw_sync(hw, gssr);
 	} else {
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	return status;
@@ -1430,7 +1430,7 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 
 	if ((phy_data & MDIO_CTRL1_RESET) != 0) {
 		hw_dbg(hw, "PHY reset did not complete.\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	/* Get init offsets */
@@ -1486,12 +1486,12 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 				hw_dbg(hw, "SOL\n");
 			} else {
 				hw_dbg(hw, "Bad control value\n");
-				return IXGBE_ERR_PHY;
+				return -EIO;
 			}
 			break;
 		default:
 			hw_dbg(hw, "Bad control type\n");
-			return IXGBE_ERR_PHY;
+			return -EIO;
 		}
 	}
 
@@ -1499,7 +1499,7 @@ s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw)
 
 err_eeprom:
 	hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
-	return IXGBE_ERR_PHY;
+	return -EIO;
 }
 
 /**
@@ -1517,10 +1517,10 @@ s32 ixgbe_identify_module_generic(struct ixgbe_hw *hw)
 		return ixgbe_identify_qsfp_module_generic(hw);
 	default:
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1545,7 +1545,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_fiber) {
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
 	/* LAN ID is needed for sfp_type determination */
@@ -1560,7 +1560,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 
 	if (identifier != IXGBE_SFF_IDENTIFIER_SFP) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 	status = hw->phy.ops.read_i2c_eeprom(hw,
 					     IXGBE_SFF_1GBE_COMP_CODES,
@@ -1751,7 +1751,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 	      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
 	      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1)) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	/* Anything else 82598-based is supported */
@@ -1775,7 +1775,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		}
 		hw_dbg(hw, "SFP+ module not supported\n");
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 	return 0;
 
@@ -1785,7 +1785,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		hw->phy.id = 0;
 		hw->phy.type = ixgbe_phy_unknown;
 	}
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1812,7 +1812,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_fiber_qsfp) {
 		hw->phy.sfp_type = ixgbe_sfp_type_not_present;
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	}
 
 	/* LAN ID is needed for sfp_type determination */
@@ -1826,7 +1826,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 
 	if (identifier != IXGBE_SFF_IDENTIFIER_QSFP_PLUS) {
 		hw->phy.type = ixgbe_phy_sfp_unsupported;
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	hw->phy.id = identifier;
@@ -1894,7 +1894,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 		} else {
 			/* unsupported module type */
 			hw->phy.type = ixgbe_phy_sfp_unsupported;
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		}
 	}
 
@@ -1954,7 +1954,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 			}
 			hw_dbg(hw, "QSFP module not supported\n");
 			hw->phy.type = ixgbe_phy_sfp_unsupported;
-			return IXGBE_ERR_SFP_NOT_SUPPORTED;
+			return -EOPNOTSUPP;
 		}
 		return 0;
 	}
@@ -1965,7 +1965,7 @@ static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 	hw->phy.id = 0;
 	hw->phy.type = ixgbe_phy_unknown;
 
-	return IXGBE_ERR_SFP_NOT_PRESENT;
+	return -ENOENT;
 }
 
 /**
@@ -1985,14 +1985,14 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 	u16 sfp_type = hw->phy.sfp_type;
 
 	if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 
 	if ((hw->device_id == IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM) &&
 	    (hw->phy.sfp_type == ixgbe_sfp_type_da_cu))
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 
 	/*
 	 * Limiting active cables and 1G Phys must be initialized as
@@ -2013,11 +2013,11 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 	if (hw->eeprom.ops.read(hw, IXGBE_PHY_INIT_OFFSET_NL, list_offset)) {
 		hw_err(hw, "eeprom read at %d failed\n",
 		       IXGBE_PHY_INIT_OFFSET_NL);
-		return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT;
+		return -EIO;
 	}
 
 	if ((!*list_offset) || (*list_offset == 0xFFFF))
-		return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT;
+		return -EIO;
 
 	/* Shift offset to first ID word */
 	(*list_offset)++;
@@ -2036,7 +2036,7 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 				goto err_phy;
 			if ((!*data_offset) || (*data_offset == 0xFFFF)) {
 				hw_dbg(hw, "SFP+ module not supported\n");
-				return IXGBE_ERR_SFP_NOT_SUPPORTED;
+				return -EOPNOTSUPP;
 			} else {
 				break;
 			}
@@ -2049,14 +2049,14 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 
 	if (sfp_id == IXGBE_PHY_INIT_END_NL) {
 		hw_dbg(hw, "No matching SFP+ module found\n");
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
 
 err_phy:
 	hw_err(hw, "eeprom read at offset %d failed\n", *list_offset);
-	return IXGBE_ERR_PHY;
+	return -EIO;
 }
 
 /**
@@ -2151,7 +2151,7 @@ static s32 ixgbe_read_i2c_byte_generic_int(struct ixgbe_hw *hw, u8 byte_offset,
 
 	do {
 		if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		ixgbe_i2c_start(hw);
 
@@ -2267,7 +2267,7 @@ static s32 ixgbe_write_i2c_byte_generic_int(struct ixgbe_hw *hw, u8 byte_offset,
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
 
 	if (lock && hw->mac.ops.acquire_swfw_sync(hw, swfw_mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	do {
 		ixgbe_i2c_start(hw);
@@ -2509,7 +2509,7 @@ static s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw)
 
 	if (ack == 1) {
 		hw_dbg(hw, "I2C ack was not received.\n");
-		status = IXGBE_ERR_I2C;
+		status = -EIO;
 	}
 
 	ixgbe_lower_i2c_clk(hw, &i2cctl);
@@ -2581,7 +2581,7 @@ static s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data)
 		udelay(IXGBE_I2C_T_LOW);
 	} else {
 		hw_dbg(hw, "I2C data was not set to %X\n", data);
-		return IXGBE_ERR_I2C;
+		return -EIO;
 	}
 
 	return 0;
@@ -2677,7 +2677,7 @@ static s32 ixgbe_set_i2c_data(struct ixgbe_hw *hw, u32 *i2cctl, bool data)
 	*i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL(hw));
 	if (data != ixgbe_get_i2c_data(hw, i2cctl)) {
 		hw_dbg(hw, "Error - I2C data was not set to %X.\n", data);
-		return IXGBE_ERR_I2C;
+		return -EIO;
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index f8c6ca9fea82..9880ae914c42 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -1325,7 +1325,7 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
 		break;
 	default:
 		e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
-		retval = IXGBE_ERR_MBX;
+		retval = -EIO;
 		break;
 	}
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 91c9ecca4cb5..61b9774b3d31 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3665,45 +3665,6 @@ struct ixgbe_info {
 	const u32			*mvals;
 };
 
-
-/* Error Codes */
-#define IXGBE_ERR_EEPROM                        -1
-#define IXGBE_ERR_EEPROM_CHECKSUM               -2
-#define IXGBE_ERR_PHY                           -3
-#define IXGBE_ERR_CONFIG                        -4
-#define IXGBE_ERR_PARAM                         -5
-#define IXGBE_ERR_MAC_TYPE                      -6
-#define IXGBE_ERR_UNKNOWN_PHY                   -7
-#define IXGBE_ERR_LINK_SETUP                    -8
-#define IXGBE_ERR_ADAPTER_STOPPED               -9
-#define IXGBE_ERR_INVALID_MAC_ADDR              -10
-#define IXGBE_ERR_DEVICE_NOT_SUPPORTED          -11
-#define IXGBE_ERR_PRIMARY_REQUESTS_PENDING      -12
-#define IXGBE_ERR_INVALID_LINK_SETTINGS         -13
-#define IXGBE_ERR_AUTONEG_NOT_COMPLETE          -14
-#define IXGBE_ERR_RESET_FAILED                  -15
-#define IXGBE_ERR_SWFW_SYNC                     -16
-#define IXGBE_ERR_PHY_ADDR_INVALID              -17
-#define IXGBE_ERR_I2C                           -18
-#define IXGBE_ERR_SFP_NOT_SUPPORTED             -19
-#define IXGBE_ERR_SFP_NOT_PRESENT               -20
-#define IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT       -21
-#define IXGBE_ERR_NO_SAN_ADDR_PTR               -22
-#define IXGBE_ERR_FDIR_REINIT_FAILED            -23
-#define IXGBE_ERR_EEPROM_VERSION                -24
-#define IXGBE_ERR_NO_SPACE                      -25
-#define IXGBE_ERR_OVERTEMP                      -26
-#define IXGBE_ERR_FC_NOT_NEGOTIATED             -27
-#define IXGBE_ERR_FC_NOT_SUPPORTED              -28
-#define IXGBE_ERR_SFP_SETUP_NOT_COMPLETE        -30
-#define IXGBE_ERR_PBA_SECTION                   -31
-#define IXGBE_ERR_INVALID_ARGUMENT              -32
-#define IXGBE_ERR_HOST_INTERFACE_COMMAND        -33
-#define IXGBE_ERR_FDIR_CMD_INCOMPLETE		-38
-#define IXGBE_ERR_FW_RESP_INVALID		-39
-#define IXGBE_ERR_TOKEN_RETRY			-40
-#define IXGBE_NOT_IMPLEMENTED                   0x7FFFFFFF
-
 #define IXGBE_FUSES0_GROUP(_i)		(0x11158 + ((_i) * 4))
 #define IXGBE_FUSES0_300MHZ		BIT(5)
 #define IXGBE_FUSES0_REV_MASK		(3u << 6)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index e127070a59f4..57a912e4653f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -84,7 +84,7 @@ s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
 	if (status) {
 		hw_dbg(hw, "semaphore failed with %d", status);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	ctrl = IXGBE_CTRL_RST;
@@ -103,7 +103,7 @@ s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 	msleep(100);
@@ -220,7 +220,7 @@ static s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data)
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_read_eerd_generic(hw, offset, data);
 
@@ -243,7 +243,7 @@ static s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
 
@@ -264,7 +264,7 @@ static s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data)
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_eewr_generic(hw, offset, data);
 
@@ -287,7 +287,7 @@ static s32 ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_eewr_buffer_generic(hw, offset, words, data);
 
@@ -324,7 +324,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 	for (i = 0; i < checksum_last_word; i++) {
 		if (ixgbe_read_eerd_generic(hw, i, &word)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 		checksum += word;
 	}
@@ -349,7 +349,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 
 		if (ixgbe_read_eerd_generic(hw, pointer, &length)) {
 			hw_dbg(hw, "EEPROM read failed\n");
-			return IXGBE_ERR_EEPROM;
+			return -EIO;
 		}
 
 		/* Skip pointer section if length is invalid. */
@@ -360,7 +360,7 @@ static s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw)
 		for (j = pointer + 1; j <= pointer + length; j++) {
 			if (ixgbe_read_eerd_generic(hw, j, &word)) {
 				hw_dbg(hw, "EEPROM read failed\n");
-				return IXGBE_ERR_EEPROM;
+				return -EIO;
 			}
 			checksum += word;
 		}
@@ -397,7 +397,7 @@ static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw,
 	}
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = hw->eeprom.ops.calc_checksum(hw);
 	if (status < 0)
@@ -418,7 +418,7 @@ static s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw,
 	 */
 	if (read_checksum != checksum) {
 		hw_dbg(hw, "Invalid EEPROM checksum");
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 	}
 
 	/* If the user cares, return the calculated checksum */
@@ -455,7 +455,7 @@ static s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw)
 	}
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM))
-		return  IXGBE_ERR_SWFW_SYNC;
+		return  -EBUSY;
 
 	status = hw->eeprom.ops.calc_checksum(hw);
 	if (status < 0)
@@ -490,7 +490,7 @@ static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw)
 	s32 status;
 
 	status = ixgbe_poll_flash_update_done_X540(hw);
-	if (status == IXGBE_ERR_EEPROM) {
+	if (status == -EIO) {
 		hw_dbg(hw, "Flash update time out\n");
 		return status;
 	}
@@ -540,7 +540,7 @@ static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw)
 			return 0;
 		udelay(5);
 	}
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -575,7 +575,7 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 		 * SW_FW_SYNC bits (not just NVM)
 		 */
 		if (ixgbe_get_swfw_sync_semaphore(hw))
-			return IXGBE_ERR_SWFW_SYNC;
+			return -EBUSY;
 
 		swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw));
 		if (!(swfw_sync & (fwmask | swmask | hwmask))) {
@@ -599,7 +599,7 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 	 * bits in the SW_FW_SYNC register.
 	 */
 	if (ixgbe_get_swfw_sync_semaphore(hw))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC(hw));
 	if (swfw_sync & (fwmask | hwmask)) {
 		swfw_sync |= swmask;
@@ -622,11 +622,11 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 			rmask |= IXGBE_GSSR_I2C_MASK;
 		ixgbe_release_swfw_sync_X540(hw, rmask);
 		ixgbe_release_swfw_sync_semaphore(hw);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 	ixgbe_release_swfw_sync_semaphore(hw);
 
-	return IXGBE_ERR_SWFW_SYNC;
+	return -EBUSY;
 }
 
 /**
@@ -680,7 +680,7 @@ static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw)
 	if (i == timeout) {
 		hw_dbg(hw,
 		       "Software semaphore SMBI between device drivers not granted.\n");
-		return IXGBE_ERR_EEPROM;
+		return -EIO;
 	}
 
 	/* Now get the semaphore between SW/FW through the REGSMP bit */
@@ -697,7 +697,7 @@ static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw)
 	 */
 	hw_dbg(hw, "REGSMP Software NVM semaphore not granted\n");
 	ixgbe_release_swfw_sync_semaphore(hw);
-	return IXGBE_ERR_EEPROM;
+	return -EIO;
 }
 
 /**
@@ -768,7 +768,7 @@ s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index)
 	bool link_up;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Link should be up in order for the blink bit in the LED control
 	 * register to work. Force link and speed in the MAC if link is down.
@@ -804,7 +804,7 @@ s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index)
 	u32 ledctl_reg;
 
 	if (index > 3)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* Restore the LED to its default value. */
 	ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index 59dd38dd8248..e479235042ca 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -206,13 +206,13 @@ static s32 ixgbe_reset_cs4227(struct ixgbe_hw *hw)
 	}
 	if (retry == IXGBE_CS4227_RETRIES) {
 		hw_err(hw, "CS4227 reset did not complete\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value);
 	if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) {
 		hw_err(hw, "CS4227 EEPROM did not load successfully\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -350,13 +350,13 @@ static s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw)
 static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
 				     u32 device_type, u16 *phy_data)
 {
-	return IXGBE_NOT_IMPLEMENTED;
+	return -EOPNOTSUPP;
 }
 
 static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr,
 				      u32 device_type, u16 phy_data)
 {
-	return IXGBE_NOT_IMPLEMENTED;
+	return -EOPNOTSUPP;
 }
 
 /**
@@ -463,7 +463,7 @@ s32 ixgbe_fw_phy_activity(struct ixgbe_hw *hw, u16 activity,
 		--retries;
 	} while (retries > 0);
 
-	return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+	return -EIO;
 }
 
 static const struct {
@@ -511,7 +511,7 @@ static s32 ixgbe_get_phy_id_fw(struct ixgbe_hw *hw)
 	hw->phy.id |= phy_id_lo & IXGBE_PHY_REVISION_MASK;
 	hw->phy.revision = phy_id_lo & ~IXGBE_PHY_REVISION_MASK;
 	if (!hw->phy.id || hw->phy.id == IXGBE_PHY_REVISION_MASK)
-		return IXGBE_ERR_PHY_ADDR_INVALID;
+		return -EFAULT;
 
 	hw->phy.autoneg_advertised = hw->phy.speeds_supported;
 	hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_100_FULL |
@@ -568,7 +568,7 @@ static s32 ixgbe_setup_fw_link(struct ixgbe_hw *hw)
 
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	switch (hw->fc.requested_mode) {
@@ -677,7 +677,7 @@ static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl)
 		*ctrl = command;
 	if (i == IXGBE_MDIO_COMMAND_TIMEOUT) {
 		hw_dbg(hw, "IOSF wait timed out\n");
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	return 0;
@@ -716,7 +716,7 @@ static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
 		hw_dbg(hw, "Failed to read, error %x\n", error);
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 	if (!ret)
@@ -751,9 +751,9 @@ static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw)
 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
 		return 0;
 	if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY)
-		return IXGBE_ERR_FW_RESP_INVALID;
+		return -EIO;
 
-	return IXGBE_ERR_TOKEN_RETRY;
+	return -EAGAIN;
 }
 
 /**
@@ -779,7 +779,7 @@ static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw)
 		return status;
 	if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK)
 		return 0;
-	return IXGBE_ERR_FW_RESP_INVALID;
+	return -EIO;
 }
 
 /**
@@ -943,7 +943,7 @@ static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
 		local_buffer = buf;
 	} else {
 		if (buffer_size < ptr)
-			return  IXGBE_ERR_PARAM;
+			return  -EINVAL;
 		local_buffer = &buffer[ptr];
 	}
 
@@ -961,7 +961,7 @@ static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr,
 	}
 
 	if (buffer && ((u32)start + (u32)length > buffer_size))
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	for (i = start; length; i++, length--) {
 		if (i == bufsz && !buffer) {
@@ -1013,7 +1013,7 @@ static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer,
 		local_buffer = eeprom_ptrs;
 	} else {
 		if (buffer_size < IXGBE_EEPROM_LAST_WORD)
-			return IXGBE_ERR_PARAM;
+			return -EINVAL;
 		local_buffer = buffer;
 	}
 
@@ -1149,7 +1149,7 @@ static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw,
 	 * calculated checksum
 	 */
 	if (read_checksum != checksum) {
-		status = IXGBE_ERR_EEPROM_CHECKSUM;
+		status = -EIO;
 		hw_dbg(hw, "Invalid EEPROM checksum");
 	}
 
@@ -1204,7 +1204,7 @@ static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data)
 		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
 	} else {
 		hw_dbg(hw, "write ee hostif failed to get semaphore");
-		status = IXGBE_ERR_SWFW_SYNC;
+		status = -EBUSY;
 	}
 
 	return status;
@@ -1415,7 +1415,7 @@ static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
 	if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
 		error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
 		hw_dbg(hw, "Failed to write, error %x\n", error);
-		return IXGBE_ERR_PHY;
+		return -EIO;
 	}
 
 out:
@@ -1558,7 +1558,7 @@ static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 
 	/* iXFI is only supported with X552 */
 	if (mac->type != ixgbe_mac_X550EM_x)
-		return IXGBE_ERR_LINK_SETUP;
+		return -EIO;
 
 	/* Disable AN and force speed to 10G Serial. */
 	status = ixgbe_read_iosf_sb_reg_x550(hw,
@@ -1580,7 +1580,7 @@ static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 		break;
 	default:
 		/* Other link speeds are not supported by internal KR PHY. */
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 	}
 
 	status = ixgbe_write_iosf_sb_reg_x550(hw,
@@ -1611,7 +1611,7 @@ static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
 {
 	switch (hw->phy.sfp_type) {
 	case ixgbe_sfp_type_not_present:
-		return IXGBE_ERR_SFP_NOT_PRESENT;
+		return -ENOENT;
 	case ixgbe_sfp_type_da_cu_core0:
 	case ixgbe_sfp_type_da_cu_core1:
 		*linear = true;
@@ -1630,7 +1630,7 @@ static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear)
 	case ixgbe_sfp_type_1g_cu_core0:
 	case ixgbe_sfp_type_1g_cu_core1:
 	default:
-		return IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
@@ -1660,7 +1660,7 @@ ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
 	 * there is no reason to configure CS4227 and SFP not present error is
 	 * not accepted in the setup MAC link flow.
 	 */
-	if (status == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (status == -ENOENT)
 		return 0;
 
 	if (status)
@@ -1718,7 +1718,7 @@ static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed)
 		break;
 	default:
 		/* Other link speeds are not supported by internal PHY. */
-		return IXGBE_ERR_LINK_SETUP;
+		return -EINVAL;
 	}
 
 	(void)mac->ops.write_iosf_sb_reg(hw,
@@ -1803,7 +1803,7 @@ ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	/* If no SFP module present, then return success. Return success since
 	 * SFP not present error is not excepted in the setup MAC link flow.
 	 */
-	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (ret_val == -ENOENT)
 		return 0;
 
 	if (ret_val)
@@ -1853,7 +1853,7 @@ ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	/* If no SFP module present, then return success. Return success since
 	 * SFP not present error is not excepted in the setup MAC link flow.
 	 */
-	if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT)
+	if (ret_val == -ENOENT)
 		return 0;
 
 	if (ret_val)
@@ -1863,7 +1863,7 @@ ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed,
 	ixgbe_setup_kr_speed_x550em(hw, speed);
 
 	if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE)
-		return IXGBE_ERR_PHY_ADDR_INVALID;
+		return -EFAULT;
 
 	/* Get external PHY SKU id */
 	ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
@@ -1962,7 +1962,7 @@ static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw,
 	u16 i, autoneg_status;
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 
 	status = ixgbe_check_mac_link_generic(hw, speed, link_up,
 					      link_up_wait_to_complete);
@@ -2145,7 +2145,7 @@ static s32 ixgbe_setup_sgmii_fw(struct ixgbe_hw *hw, ixgbe_link_speed speed,
  */
 static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
 {
-	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+	s32 status = -EIO;
 	u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
 	ixgbe_link_speed speed;
 	bool link_up;
@@ -2165,7 +2165,7 @@ static void ixgbe_fc_autoneg_sgmii_x550em_a(struct ixgbe_hw *hw)
 	/* Check if auto-negotiation has completed */
 	status = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &info);
 	if (status || !(info[0] & FW_PHY_ACT_GET_LINK_INFO_AN_COMPLETE)) {
-		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+		status = -EIO;
 		goto out;
 	}
 
@@ -2699,7 +2699,7 @@ static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
 	u16 speed;
 
 	if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper)
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 
 	if (!(hw->mac.type == ixgbe_mac_X550EM_x &&
 	      !(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE))) {
@@ -2742,7 +2742,7 @@ static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw)
 		break;
 	default:
 		/* Internal PHY does not support anything else */
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	return ixgbe_setup_ixfi_x550em(hw, &force_speed);
@@ -2774,7 +2774,7 @@ static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
 	u16 phy_data;
 
 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
@@ -2796,7 +2796,7 @@ static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
 	u16 phy_data;
 
 	if (led_idx >= IXGBE_X557_MAX_LED_INDEX)
-		return IXGBE_ERR_PARAM;
+		return -EINVAL;
 
 	/* To turn on the LED, set mode to ON. */
 	hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx,
@@ -2820,8 +2820,9 @@ static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx)
  *
  *  Sends driver version number to firmware through the manageability
  *  block.  On success return 0
- *  else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
- *  semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
+ *  else returns -EBUSY when encountering an error acquiring
+ *  semaphore, -EIO when command fails or -ENIVAL when incorrect
+ *  params passed.
  **/
 static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 				     u8 build, u8 sub, u16 len,
@@ -2832,7 +2833,7 @@ static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 	int i;
 
 	if (!len || !driver_ver || (len > sizeof(fw_cmd.driver_string)))
-		return IXGBE_ERR_INVALID_ARGUMENT;
+		return -EINVAL;
 
 	fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
 	fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN + len;
@@ -2857,7 +2858,7 @@ static s32 ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min,
 
 		if (fw_cmd.hdr.cmd_or_resp.ret_status !=
 		    FW_CEM_RESP_STATUS_SUCCESS)
-			return IXGBE_ERR_HOST_INTERFACE_COMMAND;
+			return -EIO;
 		return 0;
 	}
 
@@ -2914,7 +2915,7 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 	/* Validate the requested mode */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	/* 10gig parts do not have a word in the EEPROM to determine the
@@ -2949,7 +2950,7 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_err(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	switch (hw->device_id) {
@@ -2993,8 +2994,8 @@ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw)
 static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
 {
 	u32 link_s1, lp_an_page_low, an_cntl_1;
-	s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED;
 	ixgbe_link_speed speed;
+	s32 status = -EIO;
 	bool link_up;
 
 	/* AN should have completed when the cable was plugged in.
@@ -3020,7 +3021,7 @@ static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw)
 
 	if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) {
 		hw_dbg(hw, "Auto-Negotiation did not complete\n");
-		status = IXGBE_ERR_FC_NOT_NEGOTIATED;
+		status = -EIO;
 		goto out;
 	}
 
@@ -3257,8 +3258,8 @@ static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw)
 
 	/* Identify the PHY or SFP module */
 	ret_val = phy->ops.identify(hw);
-	if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED ||
-	    ret_val == IXGBE_ERR_PHY_ADDR_INVALID)
+	if (ret_val == -EOPNOTSUPP ||
+	    ret_val == -EFAULT)
 		return ret_val;
 
 	/* Setup function pointers based on detected hardware */
@@ -3466,8 +3467,8 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 
 	/* PHY ops must be identified and initialized prior to reset */
 	status = hw->phy.ops.init(hw);
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
-	    status == IXGBE_ERR_PHY_ADDR_INVALID)
+	if (status == -EOPNOTSUPP ||
+	    status == -EFAULT)
 		return status;
 
 	/* start the external PHY */
@@ -3483,7 +3484,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 		hw->phy.sfp_setup_needed = false;
 	}
 
-	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+	if (status == -EOPNOTSUPP)
 		return status;
 
 	/* Reset PHY */
@@ -3507,7 +3508,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask);
 	if (status) {
 		hw_dbg(hw, "semaphore failed with %d", status);
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 	}
 
 	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
@@ -3525,7 +3526,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	}
 
 	if (ctrl & IXGBE_CTRL_RST_MASK) {
-		status = IXGBE_ERR_RESET_FAILED;
+		status = -EIO;
 		hw_dbg(hw, "Reset polling failed to complete.\n");
 	}
 
@@ -3621,7 +3622,7 @@ static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
 	/* Validate the requested mode */
 	if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
 		hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
-		return IXGBE_ERR_INVALID_LINK_SETTINGS;
+		return -EINVAL;
 	}
 
 	if (hw->fc.requested_mode == ixgbe_fc_default)
@@ -3678,7 +3679,7 @@ static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw)
 		break;
 	default:
 		hw_err(hw, "Flow control param set incorrectly\n");
-		return IXGBE_ERR_CONFIG;
+		return -EIO;
 	}
 
 	status = hw->mac.ops.write_iosf_sb_reg(hw,
@@ -3774,7 +3775,7 @@ static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask)
 			return 0;
 		if (hmask)
 			ixgbe_release_swfw_sync_X540(hw, hmask);
-		if (status != IXGBE_ERR_TOKEN_RETRY)
+		if (status != -EAGAIN)
 			return status;
 		msleep(FW_PHY_TOKEN_DELAY);
 	}
@@ -3818,7 +3819,7 @@ static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data);
 
@@ -3844,7 +3845,7 @@ static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
 	s32 status;
 
 	if (hw->mac.ops.acquire_swfw_sync(hw, mask))
-		return IXGBE_ERR_SWFW_SYNC;
+		return -EBUSY;
 
 	status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data);
 	hw->mac.ops.release_swfw_sync(hw, mask);
-- 
2.31.1

Re: [Intel-wired-lan] [PATCH iwl-next v4 2/2] ixgbe: Refactor returning internal error codes

[Simon Horman]

On Tue, Dec 12, 2023 at 11:46:42AM +0100, Jedrzej Jagielski wrote:
> Change returning codes to the kernel ones instead of
> the internal ones for the entire ixgbe driver.
> 
> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v3: do not use ENOSYS; rebase
> ---
>  .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++---
>  .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++----
>  .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++----------
>  .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  26 ++--
>  drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
>  drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  |  84 +++++-----
>  .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  39 -----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 +++---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 109 ++++++-------
>  12 files changed, 266 insertions(+), 317 deletions(-)

Thanks Jedrzej,

this is a nice cleanup.

Reviewed-by: Simon Horman <horms@kernel.org>

_______________________________________________
Intel-wired-lan mailing list
Intel-wired-lan@osuosl.org
https://lists.osuosl.org/mailman/listinfo/intel-wired-lan

Re: [PATCH iwl-next v4 2/2] ixgbe: Refactor returning internal error codes

[Simon Horman]

On Tue, Dec 12, 2023 at 11:46:42AM +0100, Jedrzej Jagielski wrote:
> Change returning codes to the kernel ones instead of
> the internal ones for the entire ixgbe driver.
> 
> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v3: do not use ENOSYS; rebase
> ---
>  .../net/ethernet/intel/ixgbe/ixgbe_82598.c    |  36 ++---
>  .../net/ethernet/intel/ixgbe/ixgbe_82599.c    |  61 ++++----
>  .../net/ethernet/intel/ixgbe/ixgbe_common.c   | 145 ++++++++----------
>  .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  26 ++--
>  drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c  |  34 ++--
>  drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h  |   1 -
>  drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c  |  84 +++++-----
>  .../net/ethernet/intel/ixgbe/ixgbe_sriov.c    |   2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |  39 -----
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c |  44 +++---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 109 ++++++-------
>  12 files changed, 266 insertions(+), 317 deletions(-)

Thanks Jedrzej,

this is a nice cleanup.

Reviewed-by: Simon Horman <horms@kernel.org>