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ixgbe:add support for a new 82599 10G Base-T device 

This adds support for a new copper device for 82599, device id 0x151c.
This 82599 10GBase-T device uses the PHY's internal temperature sensor
to guard against over-temp conditions. In this scenario the PHY will be
put in a low power mode and link will no longer be able to transmit or
receive any data. When this occurs, the over-temp interrupt is latched
and driver logs this error message. A HW reset or power cycle is
required to clear this status.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mallikarjuna R Chilakala 2010-05-20 23:07:06 -07:00 committed by David S. Miller
parent 7a9b149212
commit 119fc60a2d
7 changed files with 111 additions and 0 deletions
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3
drivers/net/ixgbe/ixgbe.h
View File

@ -360,6 +360,7 @@ struct ixgbe_adapter {
u32 flags2;
#define IXGBE_FLAG2_RSC_CAPABLE (u32)(1)
#define IXGBE_FLAG2_RSC_ENABLED (u32)(1 << 1)
#define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2)
/* default to trying for four seconds */
#define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
@ -407,6 +408,8 @@ struct ixgbe_adapter {
u16 eeprom_version;
int node;
struct work_struct check_overtemp_task;
u32 interrupt_event;
/* SR-IOV */
DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);

1
drivers/net/ixgbe/ixgbe_82598.c
View File

@ -1236,6 +1236,7 @@ static struct ixgbe_phy_operations phy_ops_82598 = {
.setup_link = &ixgbe_setup_phy_link_generic,
.setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
.check_overtemp = &ixgbe_tn_check_overtemp,
};
struct ixgbe_info ixgbe_82598_info = {

1
drivers/net/ixgbe/ixgbe_82599.c
View File

@ -2395,6 +2395,7 @@ static struct ixgbe_phy_operations phy_ops_82599 = {
.write_i2c_byte = &ixgbe_write_i2c_byte_generic,
.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
.write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
.check_overtemp = &ixgbe_tn_check_overtemp,
};
struct ixgbe_info ixgbe_82599_info = {

69
drivers/net/ixgbe/ixgbe_main.c
View File

@ -108,6 +108,8 @@ static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = {
board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4),
board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM),
board_82599 },
{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE),
board_82599 },
@ -1618,6 +1620,48 @@ static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector)
}
}
/**
* ixgbe_check_overtemp_task - worker thread to check over tempurature
* @work: pointer to work_struct containing our data
**/
static void ixgbe_check_overtemp_task(struct work_struct *work)
{
struct ixgbe_adapter *adapter = container_of(work,
struct ixgbe_adapter,
check_overtemp_task);
struct ixgbe_hw *hw = &adapter->hw;
u32 eicr = adapter->interrupt_event;
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) {
switch (hw->device_id) {
case IXGBE_DEV_ID_82599_T3_LOM: {
u32 autoneg;
bool link_up = false;
if (hw->mac.ops.check_link)
hw->mac.ops.check_link(hw, &autoneg, &link_up, false);
if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) ||
(eicr & IXGBE_EICR_LSC))
/* Check if this is due to overtemp */
if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP)
break;
}
return;
default:
if (!(eicr & IXGBE_EICR_GPI_SDP0))
return;
break;
}
DPRINTK(DRV, ERR, "Network adapter has been stopped because it "
"has over heated. Restart the computer. If the problem "
"persists, power off the system and replace the "
"adapter\n");
/* write to clear the interrupt */
IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0);
}
}
static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr)
{
struct ixgbe_hw *hw = &adapter->hw;
@ -1689,6 +1733,10 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data)
if (hw->mac.type == ixgbe_mac_82599EB) {
ixgbe_check_sfp_event(adapter, eicr);
adapter->interrupt_event = eicr;
if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) &&
((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)))
schedule_work(&adapter->check_overtemp_task);
/* Handle Flow Director Full threshold interrupt */
if (eicr & IXGBE_EICR_FLOW_DIR) {
@ -2190,6 +2238,8 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter)
u32 mask;
mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
mask |= IXGBE_EIMS_GPI_SDP0;
if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE)
mask |= IXGBE_EIMS_GPI_SDP1;
if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
@ -2250,6 +2300,9 @@ static irqreturn_t ixgbe_intr(int irq, void *data)
ixgbe_check_sfp_event(adapter, eicr);
ixgbe_check_fan_failure(adapter, eicr);
if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) &&
((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)))
schedule_work(&adapter->check_overtemp_task);
if (napi_schedule_prep(&(q_vector->napi))) {
adapter->tx_ring[0]->total_packets = 0;
@ -3265,6 +3318,13 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
}
/* Enable Thermal over heat sensor interrupt */
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) {
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
gpie |= IXGBE_SDP0_GPIEN;
IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
}
/* Enable fan failure interrupt if media type is copper */
if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) {
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
@ -3666,6 +3726,9 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
cancel_work_sync(&adapter->fdir_reinit_task);
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
cancel_work_sync(&adapter->check_overtemp_task);
/* disable transmits in the hardware now that interrupts are off */
for (i = 0; i < adapter->num_tx_queues; i++) {
j = adapter->tx_ring[i]->reg_idx;
@ -4645,6 +4708,8 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter)
adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599;
adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE;
adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM)
adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE;
if (dev->features & NETIF_F_NTUPLE) {
/* Flow Director perfect filter enabled */
adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
@ -6561,7 +6626,9 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
}
/* reset_hw fills in the perm_addr as well */
hw->phy.reset_if_overtemp = true;
err = hw->mac.ops.reset_hw(hw);
hw->phy.reset_if_overtemp = false;
if (err == IXGBE_ERR_SFP_NOT_PRESENT &&
hw->mac.type == ixgbe_mac_82598EB) {
/*
@ -6730,6 +6797,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
INIT_WORK(&adapter->fdir_reinit_task, ixgbe_fdir_reinit_task);
if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)
INIT_WORK(&adapter->check_overtemp_task, ixgbe_check_overtemp_task);
#ifdef CONFIG_IXGBE_DCA
if (dca_add_requester(&pdev->dev) == 0) {
adapter->flags |= IXGBE_FLAG_DCA_ENABLED;

30
drivers/net/ixgbe/ixgbe_phy.c
View File

@ -135,6 +135,11 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
**/
s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw)
{
/* 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)))
return 0;
/*
* Perform soft PHY reset to the PHY_XS.
* This will cause a soft reset to the PHY
@ -1345,3 +1350,28 @@ s32 ixgbe_get_phy_firmware_version_tnx(struct ixgbe_hw *hw,
return status;
}
/**
* ixgbe_tn_check_overtemp - Checks if an overtemp occured.
* @hw: pointer to hardware structure
*
* Checks if the LASI temp alarm status was triggered due to overtemp
**/
s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw)
{
s32 status = 0;
u16 phy_data = 0;
if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM)
goto out;
/* 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);
if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM))
goto out;
status = IXGBE_ERR_OVERTEMP;
out:
return status;
}

3
drivers/net/ixgbe/ixgbe_phy.h
View File

@ -80,6 +80,8 @@
#define IXGBE_I2C_T_SU_STO 4
#define IXGBE_I2C_T_BUF 5
#define IXGBE_TN_LASI_STATUS_REG 0x9005
#define IXGBE_TN_LASI_STATUS_TEMP_ALARM 0x0008
s32 ixgbe_init_phy_ops_generic(struct ixgbe_hw *hw);
s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw);
@ -106,6 +108,7 @@ 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_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,
u8 dev_addr, u8 *data);
s32 ixgbe_write_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset,

4
drivers/net/ixgbe/ixgbe_type.h
View File

@ -51,6 +51,7 @@
#define IXGBE_DEV_ID_82599_KX4 0x10F7
#define IXGBE_DEV_ID_82599_KX4_MEZZ 0x1514
#define IXGBE_DEV_ID_82599_KR 0x1517
#define IXGBE_DEV_ID_82599_T3_LOM 0x151C
#define IXGBE_DEV_ID_82599_CX4 0x10F9
#define IXGBE_DEV_ID_82599_SFP 0x10FB
#define IXGBE_DEV_ID_82599_SFP_EM 0x1507
@ -2470,6 +2471,7 @@ struct ixgbe_phy_operations {
s32 (*write_i2c_byte)(struct ixgbe_hw *, u8, 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 *);
};
struct ixgbe_eeprom_info {
@ -2518,6 +2520,7 @@ struct ixgbe_phy_info {
enum ixgbe_smart_speed smart_speed;
bool smart_speed_active;
bool multispeed_fiber;
bool reset_if_overtemp;
};
#include "ixgbe_mbx.h"
@ -2605,6 +2608,7 @@ struct ixgbe_info {
#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_NOT_IMPLEMENTED 0x7FFFFFFF
#endif /* _IXGBE_TYPE_H_ */