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Message-Id: <20231208090055.303507-2-jedrzej.jagielski@intel.com>
Date: Fri, 8 Dec 2023 10:00:54 +0100
From: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: anthony.l.nguyen@...el.com,
netdev@...r.kernel.org,
Jedrzej Jagielski <jedrzej.jagielski@...el.com>
Subject: [PATCH iwl-next v3 1/2] ixgbe: Refactor overtemp event handling
Currently ixgbe driver is notified of overheating events
via internal IXGBE_ERR_OVERTEMP error code.
Change the approach to use freshly introduced is_overtemp
function parameter which set when such event occurs.
Add new parameter to the check_overtemp() and handle_lasi()
phy ops.
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
---
v2: change aproach to use additional function parameter to notify when overheat
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++----
drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 33 +++++++++----
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 | 47 ++++++++++++-------
5 files changed, 67 insertions(+), 39 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 227415d61efc..f6200f0d1e06 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)
+ hw->phy.ops.check_overtemp(hw, &overtemp);
+ 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)
+ hw->phy.ops.check_overtemp(hw, &overtemp);
+ if (!overtemp)
return;
break;
default:
@@ -2807,6 +2808,7 @@ static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter)
return;
break;
}
+
e_crit(drv, "%s\n", ixgbe_overheat_msg);
adapter->interrupt_event = 0;
@@ -7938,7 +7940,7 @@ 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 +7950,9 @@ 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..82a59382934a 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);
@@ -406,9 +407,12 @@ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
if (status != 0 || hw->phy.type == ixgbe_phy_none)
return status;
+ status = hw->phy.ops.check_overtemp(hw, &overtemp);
+ if (status)
+ 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)))
+ if (!hw->phy.reset_if_overtemp && overtemp)
return 0;
/* Blocked by MNG FW so bail */
@@ -2744,24 +2748,33 @@ static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw)
/**
* ixgbe_tn_check_overtemp - Checks if an overtemp occurred.
* @hw: pointer to hardware structure
+ * @is_overtemp: indicate whether an overtemp event encountered
*
* Checks if the LASI temp alarm status was triggered due to overtemp
**/
-s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
+s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw, bool *is_overtemp)
{
u16 phy_data = 0;
+ u32 status;
+
+ if (!hw || !is_overtemp)
+ return -EINVAL;
+
+ *is_overtemp = false;
if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
return 0;
/* 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 status;
- if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
- return 0;
+ if (phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)
+ *is_overtemp = true;
- return IXGBE_ERR_OVERTEMP;
+ return 0;
}
/** 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..af5961f3c414 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);
+s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw, bool *is_overtemp);
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..99a814f06c61 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 *);
+ s32 (*check_overtemp)(struct ixgbe_hw *, bool *);
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..85e0027be601 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;
@@ -3185,19 +3194,25 @@ 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
+ * @is_overtemp: indicate whether an overtemp event encountered
*/
-static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw)
+static s32 ixgbe_check_overtemp_fw(struct ixgbe_hw *hw, bool *is_overtemp)
{
u32 store[FW_PHY_ACT_DATA_COUNT] = { 0 };
s32 rc;
+ if (!hw || !is_overtemp)
+ return -EINVAL;
+
+ *is_overtemp = false;
+
rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_GET_LINK_INFO, &store);
if (rc)
return rc;
if (store[0] & FW_PHY_ACT_GET_LINK_INFO_TEMP) {
ixgbe_shutdown_fw_phy(hw);
- return IXGBE_ERR_OVERTEMP;
+ *is_overtemp = true;
}
return 0;
}
--
2.31.1
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