Quelle ixgbe_82598.c
Sprache: C
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 1999 - 2018 Intel Corporation. */
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include "ixgbe.h"
#include "ixgbe_mbx.h"
#include "ixgbe_phy.h"
#define IXGBE_82598_MAX_TX_QUEUES 32
#define IXGBE_82598_MAX_RX_QUEUES 64
#define IXGBE_82598_RAR_ENTRIES 16
#define IXGBE_82598_MC_TBL_SIZE 128
#define IXGBE_82598_VFT_TBL_SIZE 128
#define IXGBE_82598_RX_PB_SIZE 512
static int ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
bool autoneg_wait_to_complete);
static int ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
u8 *eeprom_data);
/**
* ixgbe_set_pcie_completion_timeout - set pci - e completion timeout
* @ hw : pointer to the HW structure
*
* The defaults for 82598 should be in the range of 50 us to 50 ms ,
* however the hardware default for these parts is 500 us to 1 ms which is less
* than the 10 ms recommended by the pci - e spec . To address this we need to
* increase the value to either 10 ms to 250 ms for capability version 1 config ,
* or 16 ms to 55 ms for version 2 .
**/
static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
{
u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
u16 pcie_devctl2;
if (ixgbe_removed(hw->hw_addr))
return ;
/* only take action if timeout value is defaulted to 0 */
if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
goto out;
/*
* if capabilities version is type 1 we can write the
* timeout of 10 ms to 250 ms through the GCR register
*/
if (!(gcr & IXGBE_GCR_CAP_VER2)) {
gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
goto out;
}
/*
* for version 2 capabilities we need to write the config space
* directly in order to set the completion timeout value for
* 16 ms to 55 ms
*/
pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
out:
/* disable completion timeout resend */
gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
}
static int ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
/* Call PHY identify routine to get the phy type */
ixgbe_identify_phy_generic(hw);
mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
return 0 ;
}
/**
* ixgbe_init_phy_ops_82598 - PHY / SFP specific init
* @ hw : pointer to hardware structure
*
* Initialize any function pointers that were not able to be
* set during get_invariants because the PHY / SFP type was
* not known . Perform the SFP init if necessary .
*
**/
static int ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
struct ixgbe_phy_info *phy = &hw->phy;
u16 list_offset, data_offset;
int ret_val;
/* Identify the PHY */
phy->ops.identify(hw);
/* Overwrite the link function pointers if copper PHY */
if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
mac->ops.get_link_capabilities =
&ixgbe_get_copper_link_capabilities_generic;
}
switch (hw->phy.type) {
case ixgbe_phy_tn:
phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
phy->ops.check_link = &ixgbe_check_phy_link_tnx;
break ;
case ixgbe_phy_nl:
phy->ops.reset = &ixgbe_reset_phy_nl;
/* Call SFP+ identify routine to get the SFP+ module type */
ret_val = phy->ops.identify_sfp(hw);
if (ret_val)
return ret_val;
if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
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 -EOPNOTSUPP;
break ;
default :
break ;
}
return 0 ;
}
/**
* ixgbe_start_hw_82598 - Prepare hardware for Tx / Rx
* @ hw : pointer to hardware structure
*
* Starts the hardware using the generic start_hw function .
* Disables relaxed ordering for archs other than SPARC
* Then set pcie completion timeout
*
**/
static int ixgbe_start_hw_82598(struct ixgbe_hw *hw)
{
int ret_val;
ret_val = ixgbe_start_hw_generic(hw);
if (ret_val)
return ret_val;
/* set the completion timeout for interface */
ixgbe_set_pcie_completion_timeout(hw);
return 0 ;
}
/**
* ixgbe_get_link_capabilities_82598 - Determines link capabilities
* @ hw : pointer to hardware structure
* @ speed : pointer to link speed
* @ autoneg : boolean auto - negotiation value
*
* Determines the link capabilities by reading the AUTOC register .
**/
static int ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
ixgbe_link_speed *speed,
bool *autoneg)
{
u32 autoc = 0 ;
/*
* Determine link capabilities based on the stored value of AUTOC ,
* which represents EEPROM defaults . If AUTOC value has not been
* stored , use the current register value .
*/
if (hw->mac.orig_link_settings_stored)
autoc = hw->mac.orig_autoc;
else
autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
switch (autoc & IXGBE_AUTOC_LMS_MASK) {
case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
*speed = IXGBE_LINK_SPEED_1GB_FULL;
*autoneg = false ;
break ;
case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
*speed = IXGBE_LINK_SPEED_10GB_FULL;
*autoneg = false ;
break ;
case IXGBE_AUTOC_LMS_1G_AN:
*speed = IXGBE_LINK_SPEED_1GB_FULL;
*autoneg = true ;
break ;
case IXGBE_AUTOC_LMS_KX4_AN:
case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
*speed = IXGBE_LINK_SPEED_UNKNOWN;
if (autoc & IXGBE_AUTOC_KX4_SUPP)
*speed |= IXGBE_LINK_SPEED_10GB_FULL;
if (autoc & IXGBE_AUTOC_KX_SUPP)
*speed |= IXGBE_LINK_SPEED_1GB_FULL;
*autoneg = true ;
break ;
default :
return -EIO;
}
return 0 ;
}
/**
* ixgbe_get_media_type_82598 - Determines media type
* @ hw : pointer to hardware structure
*
* Returns the media type ( fiber , copper , backplane )
**/
static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
{
/* Detect if there is a copper PHY attached. */
switch (hw->phy.type) {
case ixgbe_phy_cu_unknown:
case ixgbe_phy_tn:
return ixgbe_media_type_copper;
default :
break ;
}
/* Media type for I82598 is based on device ID */
switch (hw->device_id) {
case IXGBE_DEV_ID_82598:
case IXGBE_DEV_ID_82598_BX:
/* Default device ID is mezzanine card KX/KX4 */
return ixgbe_media_type_backplane;
case IXGBE_DEV_ID_82598AF_DUAL_PORT:
case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
case IXGBE_DEV_ID_82598EB_XF_LR:
case IXGBE_DEV_ID_82598EB_SFP_LOM:
return ixgbe_media_type_fiber;
case IXGBE_DEV_ID_82598EB_CX4:
case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
return ixgbe_media_type_cx4;
case IXGBE_DEV_ID_82598AT:
case IXGBE_DEV_ID_82598AT2:
return ixgbe_media_type_copper;
default :
return ixgbe_media_type_unknown;
}
}
/**
* ixgbe_fc_enable_82598 - Enable flow control
* @ hw : pointer to hardware structure
*
* Enable flow control according to the current settings .
**/
static int ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
{
u32 fctrl_reg;
u32 rmcs_reg;
u32 reg;
u32 fcrtl, fcrth;
u32 link_speed = 0 ;
int i;
bool link_up;
/* Validate the water mark configuration */
if (!hw->fc.pause_time)
return -EINVAL;
/* Low water mark of zero causes XOFF floods */
for (i = 0 ; i < MAX_TRAFFIC_CLASS; i++) {
if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
hw->fc.high_water[i]) {
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 -EINVAL;
}
}
}
/*
* On 82598 having Rx FC on causes resets while doing 1 G
* so if it ' s on turn it off once we know link_speed . For
* more details see 82598 Specification update .
*/
hw->mac.ops.check_link(hw, &link_speed, &link_up, false );
if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
switch (hw->fc.requested_mode) {
case ixgbe_fc_full:
hw->fc.requested_mode = ixgbe_fc_tx_pause;
break ;
case ixgbe_fc_rx_pause:
hw->fc.requested_mode = ixgbe_fc_none;
break ;
default :
/* no change */
break ;
}
}
/* Negotiate the fc mode to use */
hw->mac.ops.fc_autoneg(hw);
/* Disable any previous flow control settings */
fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
/*
* The possible values of fc . current_mode are :
* 0 : Flow control is completely disabled
* 1 : Rx flow control is enabled ( we can receive pause frames ,
* but not send pause frames ) .
* 2 : Tx flow control is enabled ( we can send pause frames but
* we do not support receiving pause frames ) .
* 3 : Both Rx and Tx flow control ( symmetric ) are enabled .
* other : Invalid .
*/
switch (hw->fc.current_mode) {
case ixgbe_fc_none:
/*
* Flow control is disabled by software override or autoneg .
* The code below will actually disable it in the HW .
*/
break ;
case ixgbe_fc_rx_pause:
/*
* Rx Flow control is enabled and Tx Flow control is
* disabled by software override . Since there really
* isn ' t a way to advertise that we are capable of RX
* Pause ONLY , we will advertise that we support both
* symmetric and asymmetric Rx PAUSE . Later , we will
* disable the adapter ' s ability to send PAUSE frames .
*/
fctrl_reg |= IXGBE_FCTRL_RFCE;
break ;
case ixgbe_fc_tx_pause:
/*
* Tx Flow control is enabled , and Rx Flow control is
* disabled by software override .
*/
rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
break ;
case ixgbe_fc_full:
/* Flow control (both Rx and Tx) is enabled by SW override. */
fctrl_reg |= IXGBE_FCTRL_RFCE;
rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
break ;
default :
hw_dbg(hw, "Flow control param set incorrectly\n" );
return -EIO;
}
/* Set 802.3x based flow control settings. */
fctrl_reg |= IXGBE_FCTRL_DPF;
IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
/* Set up and enable Rx high/low water mark thresholds, enable XON. */
for (i = 0 ; i < MAX_TRAFFIC_CLASS; i++) {
if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
hw->fc.high_water[i]) {
fcrtl = (hw->fc.low_water[i] << 10 ) | IXGBE_FCRTL_XONE;
fcrth = (hw->fc.high_water[i] << 10 ) | IXGBE_FCRTH_FCEN;
IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
} else {
IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0 );
IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0 );
}
}
/* Configure pause time (2 TCs per register) */
reg = hw->fc.pause_time * 0 x00010001;
for (i = 0 ; i < (MAX_TRAFFIC_CLASS / 2 ); i++)
IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
/* Configure flow control refresh threshold value */
IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2 );
return 0 ;
}
/**
* ixgbe_start_mac_link_82598 - Configures MAC link settings
* @ hw : pointer to hardware structure
* @ autoneg_wait_to_complete : true when waiting for completion is needed
*
* Configures link settings based on values in the ixgbe_hw struct .
* Restarts the link . Performs autonegotiation if needed .
**/
static int ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
bool autoneg_wait_to_complete)
{
int status = 0 ;
u32 autoc_reg;
u32 links_reg;
u32 i;
/* Restart link */
autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
autoc_reg |= IXGBE_AUTOC_AN_RESTART;
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
/* Only poll for autoneg to complete if specified to do so */
if (autoneg_wait_to_complete) {
if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
IXGBE_AUTOC_LMS_KX4_AN ||
(autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
links_reg = 0 ; /* Just in case Autoneg time = 0 */
for (i = 0 ; i < IXGBE_AUTO_NEG_TIME; i++) {
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
if (links_reg & IXGBE_LINKS_KX_AN_COMP)
break ;
msleep(100 );
}
if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
status = -EIO;
hw_dbg(hw, "Autonegotiation did not complete.\n" );
}
}
}
/* Add delay to filter out noises during initial link setup */
msleep(50 );
return status;
}
/**
* ixgbe_validate_link_ready - Function looks for phy link
* @ hw : pointer to hardware structure
*
* Function indicates success when phy link is available . If phy is not ready
* within 5 seconds of MAC indicating link , the function returns error .
**/
static int ixgbe_validate_link_ready(struct ixgbe_hw *hw)
{
u32 timeout;
u16 an_reg;
if (hw->device_id != IXGBE_DEV_ID_82598AT2)
return 0 ;
for (timeout = 0 ;
timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
(an_reg & MDIO_STAT1_LSTATUS))
break ;
msleep(100 );
}
if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
hw_dbg(hw, "Link was indicated but link is down\n" );
return -EIO;
}
return 0 ;
}
/**
* ixgbe_check_mac_link_82598 - Get link / speed status
* @ hw : pointer to hardware structure
* @ speed : pointer to link speed
* @ link_up : true is link is up , false otherwise
* @ link_up_wait_to_complete : bool used to wait for link up or not
*
* Reads the links register to determine if link is up and the current speed
**/
static int ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
ixgbe_link_speed *speed, bool *link_up,
bool link_up_wait_to_complete)
{
u32 links_reg;
u32 i;
u16 link_reg, adapt_comp_reg;
/*
* SERDES PHY requires us to read link status from register 0 xC79F .
* Bit 0 set indicates link is up / ready ; clear indicates link down .
* 0 xC00C is read to check that the XAUI lanes are active . Bit 0
* clear indicates active ; set indicates inactive .
*/
if (hw->phy.type == ixgbe_phy_nl) {
hw->phy.ops.read_reg(hw, 0 xC79F, MDIO_MMD_PMAPMD, &link_reg);
hw->phy.ops.read_reg(hw, 0 xC79F, MDIO_MMD_PMAPMD, &link_reg);
hw->phy.ops.read_reg(hw, 0 xC00C, MDIO_MMD_PMAPMD,
&adapt_comp_reg);
if (link_up_wait_to_complete) {
for (i = 0 ; i < IXGBE_LINK_UP_TIME; i++) {
if ((link_reg & 1 ) &&
((adapt_comp_reg & 1 ) == 0 )) {
*link_up = true ;
break ;
} else {
*link_up = false ;
}
msleep(100 );
hw->phy.ops.read_reg(hw, 0 xC79F,
MDIO_MMD_PMAPMD,
&link_reg);
hw->phy.ops.read_reg(hw, 0 xC00C,
MDIO_MMD_PMAPMD,
&adapt_comp_reg);
}
} else {
if ((link_reg & 1 ) && ((adapt_comp_reg & 1 ) == 0 ))
*link_up = true ;
else
*link_up = false ;
}
if (!*link_up)
return 0 ;
}
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
if (link_up_wait_to_complete) {
for (i = 0 ; i < IXGBE_LINK_UP_TIME; i++) {
if (links_reg & IXGBE_LINKS_UP) {
*link_up = true ;
break ;
} else {
*link_up = false ;
}
msleep(100 );
links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
}
} else {
if (links_reg & IXGBE_LINKS_UP)
*link_up = true ;
else
*link_up = false ;
}
if (links_reg & IXGBE_LINKS_SPEED)
*speed = IXGBE_LINK_SPEED_10GB_FULL;
else
*speed = IXGBE_LINK_SPEED_1GB_FULL;
if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
(ixgbe_validate_link_ready(hw) != 0 ))
*link_up = false ;
return 0 ;
}
/**
* ixgbe_setup_mac_link_82598 - Set MAC link speed
* @ hw : pointer to hardware structure
* @ speed : new link speed
* @ autoneg_wait_to_complete : true when waiting for completion is needed
*
* Set the link speed in the AUTOC register and restarts link .
**/
static int ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
bool autoneg_wait_to_complete)
{
bool autoneg = false ;
ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
u32 autoc = curr_autoc;
u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
/* Check to see if speed passed in is supported. */
ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
speed &= link_capabilities;
if (speed == IXGBE_LINK_SPEED_UNKNOWN)
return -EINVAL;
/* Set KX4/KX support according to speed requested */
else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
if (speed & IXGBE_LINK_SPEED_10GB_FULL)
autoc |= IXGBE_AUTOC_KX4_SUPP;
if (speed & IXGBE_LINK_SPEED_1GB_FULL)
autoc |= IXGBE_AUTOC_KX_SUPP;
if (autoc != curr_autoc)
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
}
/* Setup and restart the link based on the new values in
* ixgbe_hw This will write the AUTOC register based on the new
* stored values
*/
return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
}
/**
* ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
* @ hw : pointer to hardware structure
* @ speed : new link speed
* @ autoneg_wait_to_complete : true if waiting is needed to complete
*
* Sets the link speed in the AUTOC register in the MAC and restarts link .
**/
static int ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
bool autoneg_wait_to_complete)
{
int status;
/* Setup the PHY according to input speed */
status = hw->phy.ops.setup_link_speed(hw, speed,
autoneg_wait_to_complete);
/* Set up MAC */
ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
return status;
}
/**
* ixgbe_reset_hw_82598 - Performs hardware reset
* @ hw : pointer to hardware structure
*
* Resets the hardware by resetting the transmit and receive units , masks and
* clears all interrupts , performing a PHY reset , and performing a link ( MAC )
* reset .
**/
static int ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
{
int phy_status = 0 ;
u8 analog_val;
u32 gheccr;
int status;
u32 autoc;
u32 ctrl;
u32 i;
/* Call adapter stop to disable tx/rx and clear interrupts */
status = hw->mac.ops.stop_adapter(hw);
if (status)
return status;
/*
* Power up the Atlas Tx lanes if they are currently powered down .
* Atlas Tx lanes are powered down for MAC loopback tests , but
* they are not automatically restored on reset .
*/
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
/* Enable Tx Atlas so packets can be transmitted again */
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
&analog_val);
analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
analog_val);
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
&analog_val);
analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
analog_val);
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
&analog_val);
analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
analog_val);
hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
&analog_val);
analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
analog_val);
}
/* Reset PHY */
if (hw->phy.reset_disable == false ) {
/* PHY ops must be identified and initialized prior to reset */
/* Init PHY and function pointers, perform SFP setup */
phy_status = hw->phy.ops.init(hw);
if (phy_status == -EOPNOTSUPP)
return phy_status;
if (phy_status == -ENOENT)
goto mac_reset_top;
hw->phy.ops.reset(hw);
}
mac_reset_top:
/*
* Issue global reset to the MAC . This needs to be a SW reset .
* If link reset is used , it might reset the MAC when mng is using it
*/
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
IXGBE_WRITE_FLUSH(hw);
usleep_range(1000 , 1200 );
/* Poll for reset bit to self-clear indicating reset is complete */
for (i = 0 ; i < 10 ; i++) {
ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
if (!(ctrl & IXGBE_CTRL_RST))
break ;
udelay(1 );
}
if (ctrl & IXGBE_CTRL_RST) {
status = -EIO;
hw_dbg(hw, "Reset polling failed to complete.\n" );
}
msleep(50 );
/*
* Double resets are required for recovery from certain error
* conditions . Between resets , it is necessary to stall to allow time
* for any pending HW events to complete .
*/
if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
goto mac_reset_top;
}
gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
gheccr &= ~(BIT(21 ) | BIT(18 ) | BIT(9 ) | BIT(6 ));
IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
/*
* Store the original AUTOC value if it has not been
* stored off yet . Otherwise restore the stored original
* AUTOC value since the reset operation sets back to defaults .
*/
autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
if (hw->mac.orig_link_settings_stored == false ) {
hw->mac.orig_autoc = autoc;
hw->mac.orig_link_settings_stored = true ;
} else if (autoc != hw->mac.orig_autoc) {
IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
}
/* Store the permanent mac address */
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
/*
* Store MAC address from RAR0 , clear receive address registers , and
* clear the multicast table
*/
hw->mac.ops.init_rx_addrs(hw);
if (phy_status)
status = phy_status;
return status;
}
/**
* ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
* @ hw : pointer to hardware struct
* @ rar : receive address register index to associate with a VMDq index
* @ vmdq : VMDq set index
**/
static int ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
{
u32 rar_high;
u32 rar_entries = hw->mac.num_rar_entries;
/* 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 -EINVAL;
}
rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
rar_high &= ~IXGBE_RAH_VIND_MASK;
rar_high |= FIELD_PREP(IXGBE_RAH_VIND_MASK, vmdq);
IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
return 0 ;
}
/**
* ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
* @ hw : pointer to hardware struct
* @ rar : receive address register index to associate with a VMDq index
* @ vmdq : VMDq clear index ( not used in 82598 , but elsewhere )
**/
static int ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
{
u32 rar_high;
u32 rar_entries = hw->mac.num_rar_entries;
/* 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 -EINVAL;
}
rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
if (rar_high & IXGBE_RAH_VIND_MASK) {
rar_high &= ~IXGBE_RAH_VIND_MASK;
IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
}
return 0 ;
}
/**
* ixgbe_set_vfta_82598 - Set VLAN filter table
* @ hw : pointer to hardware structure
* @ vlan : VLAN id to write to VLAN filter
* @ vind : VMDq output index that maps queue to VLAN id in VFTA
* @ vlan_on : boolean flag to turn on / off VLAN in VFTA
* @ vlvf_bypass : boolean flag - unused
*
* Turn on / off specified VLAN in the VLAN filter table .
**/
static int ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
bool vlan_on, bool vlvf_bypass)
{
u32 regindex;
u32 bitindex;
u32 bits;
u32 vftabyte;
if (vlan > 4095 )
return -EINVAL;
/* Determine 32-bit word position in array */
regindex = (vlan >> 5 ) & 0 x7F; /* upper seven bits */
/* Determine the location of the (VMD) queue index */
vftabyte = ((vlan >> 3 ) & 0 x03); /* bits (4:3) indicating byte array */
bitindex = (vlan & 0 x7) << 2 ; /* lower 3 bits indicate nibble */
/* Set the nibble for VMD queue index */
bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
bits &= (~(0 x0F << bitindex));
bits |= (vind << bitindex);
IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
/* Determine the location of the bit for this VLAN id */
bitindex = vlan & 0 x1F; /* lower five bits */
bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
if (vlan_on)
/* Turn on this VLAN id */
bits |= BIT(bitindex);
else
/* Turn off this VLAN id */
bits &= ~BIT(bitindex);
IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
return 0 ;
}
/**
* ixgbe_clear_vfta_82598 - Clear VLAN filter table
* @ hw : pointer to hardware structure
*
* Clears the VLAN filter table , and the VMDq index associated with the filter
**/
static int ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
{
u32 offset;
u32 vlanbyte;
for (offset = 0 ; offset < hw->mac.vft_size; offset++)
IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0 );
for (vlanbyte = 0 ; vlanbyte < 4 ; vlanbyte++)
for (offset = 0 ; offset < hw->mac.vft_size; offset++)
IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
0 );
return 0 ;
}
/**
* ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
* @ hw : pointer to hardware structure
* @ reg : analog register to read
* @ val : read value
*
* Performs read operation to Atlas analog register specified .
**/
static int ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
{
u32 atlas_ctl;
IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
IXGBE_ATLASCTL_WRITE_CMD | (reg << 8 ));
IXGBE_WRITE_FLUSH(hw);
udelay(10 );
atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
*val = (u8)atlas_ctl;
return 0 ;
}
/**
* ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
* @ hw : pointer to hardware structure
* @ reg : atlas register to write
* @ val : value to write
*
* Performs write operation to Atlas analog register specified .
**/
static int ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
{
u32 atlas_ctl;
atlas_ctl = (reg << 8 ) | val;
IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
IXGBE_WRITE_FLUSH(hw);
udelay(10 );
return 0 ;
}
/**
* ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface .
* @ hw : pointer to hardware structure
* @ dev_addr : address to read from
* @ byte_offset : byte offset to read from dev_addr
* @ eeprom_data : value read
*
* Performs 8 byte read operation to SFP module ' s data over I2C interface .
**/
static int ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
u8 byte_offset, u8 *eeprom_data)
{
u16 sfp_addr = 0 ;
u16 sfp_data = 0 ;
u16 sfp_stat = 0 ;
int status = 0 ;
u16 gssr;
u32 i;
if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
gssr = IXGBE_GSSR_PHY1_SM;
else
gssr = IXGBE_GSSR_PHY0_SM;
if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0 )
return -EBUSY;
if (hw->phy.type == ixgbe_phy_nl) {
/*
* phy SDA / SCL registers are at addresses 0 xC30A to
* 0 xC30D . These registers are used to talk to the SFP +
* module ' s EEPROM through the SDA / SCL ( I2C ) interface .
*/
sfp_addr = (dev_addr << 8 ) + byte_offset;
sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
hw->phy.ops.write_reg_mdi(hw,
IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
MDIO_MMD_PMAPMD,
sfp_addr);
/* Poll status */
for (i = 0 ; i < 100 ; i++) {
hw->phy.ops.read_reg_mdi(hw,
IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
MDIO_MMD_PMAPMD,
&sfp_stat);
sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
break ;
usleep_range(10000 , 20000 );
}
if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
hw_dbg(hw, "EEPROM read did not pass.\n" );
status = -ENOENT;
goto out;
}
/* Read data */
hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
MDIO_MMD_PMAPMD, &sfp_data);
*eeprom_data = (u8)(sfp_data >> 8 );
} else {
status = -EIO;
}
out:
hw->mac.ops.release_swfw_sync(hw, gssr);
return status;
}
/**
* ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface .
* @ hw : pointer to hardware structure
* @ byte_offset : EEPROM byte offset to read
* @ eeprom_data : value read
*
* Performs 8 byte read operation to SFP module ' s EEPROM over I2C interface .
**/
static int ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
u8 *eeprom_data)
{
return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
byte_offset, eeprom_data);
}
/**
* ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface .
* @ hw : pointer to hardware structure
* @ byte_offset : byte offset at address 0 xA2
* @ sff8472_data : value read
*
* Performs 8 byte read operation to SFP module ' s SFF - 8472 data over I2C
**/
static int ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
u8 *sff8472_data)
{
return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
byte_offset, sff8472_data);
}
/**
* ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
* port devices .
* @ hw : pointer to the HW structure
*
* Calls common function and corrects issue with some single port devices
* that enable LAN1 but not LAN0 .
**/
static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
{
struct ixgbe_bus_info *bus = &hw->bus;
u16 pci_gen = 0 ;
u16 pci_ctrl2 = 0 ;
ixgbe_set_lan_id_multi_port_pcie(hw);
/* check if LAN0 is disabled */
hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
if ((pci_gen != 0 ) && (pci_gen != 0 xFFFF)) {
hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
/* if LAN0 is completely disabled force function to 0 */
if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
!(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
!(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
bus->func = 0 ;
}
}
}
/**
* ixgbe_set_rxpba_82598 - Initialize RX packet buffer
* @ hw : pointer to hardware structure
* @ num_pb : number of packet buffers to allocate
* @ headroom : reserve n KB of headroom
* @ strategy : packet buffer allocation strategy
**/
static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
u32 headroom, int strategy)
{
u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
u8 i = 0 ;
if (!num_pb)
return ;
/* Setup Rx packet buffer sizes */
switch (strategy) {
case PBA_STRATEGY_WEIGHTED:
/* Setup the first four at 80KB */
rxpktsize = IXGBE_RXPBSIZE_80KB;
for (; i < 4 ; i++)
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
/* Setup the last four at 48KB...don't re-init i */
rxpktsize = IXGBE_RXPBSIZE_48KB;
fallthrough;
case PBA_STRATEGY_EQUAL:
default :
/* Divide the remaining Rx packet buffer evenly among the TCs */
for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
break ;
}
/* Setup Tx packet buffer sizes */
for (i = 0 ; i < IXGBE_MAX_PACKET_BUFFERS; i++)
IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
}
static const struct ixgbe_mac_operations mac_ops_82598 = {
.init_hw = &ixgbe_init_hw_generic,
.reset_hw = &ixgbe_reset_hw_82598,
.start_hw = &ixgbe_start_hw_82598,
.clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
.get_media_type = &ixgbe_get_media_type_82598,
.enable_rx_dma = &ixgbe_enable_rx_dma_generic,
.get_mac_addr = &ixgbe_get_mac_addr_generic,
.stop_adapter = &ixgbe_stop_adapter_generic,
.get_bus_info = &ixgbe_get_bus_info_generic,
.set_lan_id = &ixgbe_set_lan_id_multi_port_pcie_82598,
.read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
.write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
.setup_link = &ixgbe_setup_mac_link_82598,
.set_rxpba = &ixgbe_set_rxpba_82598,
.check_link = &ixgbe_check_mac_link_82598,
.get_link_capabilities = &ixgbe_get_link_capabilities_82598,
.led_on = &ixgbe_led_on_generic,
.led_off = &ixgbe_led_off_generic,
.init_led_link_act = ixgbe_init_led_link_act_generic,
.blink_led_start = &ixgbe_blink_led_start_generic,
.blink_led_stop = &ixgbe_blink_led_stop_generic,
.set_rar = &ixgbe_set_rar_generic,
.clear_rar = &ixgbe_clear_rar_generic,
.set_vmdq = &ixgbe_set_vmdq_82598,
.clear_vmdq = &ixgbe_clear_vmdq_82598,
.init_rx_addrs = &ixgbe_init_rx_addrs_generic,
.update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
.enable_mc = &ixgbe_enable_mc_generic,
.disable_mc = &ixgbe_disable_mc_generic,
.clear_vfta = &ixgbe_clear_vfta_82598,
.set_vfta = &ixgbe_set_vfta_82598,
.fc_enable = &ixgbe_fc_enable_82598,
.setup_fc = ixgbe_setup_fc_generic,
.fc_autoneg = ixgbe_fc_autoneg,
.set_fw_drv_ver = NULL,
.acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
.release_swfw_sync = &ixgbe_release_swfw_sync,
.init_swfw_sync = NULL,
.get_thermal_sensor_data = NULL,
.init_thermal_sensor_thresh = NULL,
.prot_autoc_read = &prot_autoc_read_generic,
.prot_autoc_write = &prot_autoc_write_generic,
.enable_rx = &ixgbe_enable_rx_generic,
.disable_rx = &ixgbe_disable_rx_generic,
};
static const struct ixgbe_eeprom_operations eeprom_ops_82598 = {
.init_params = &ixgbe_init_eeprom_params_generic,
.read = &ixgbe_read_eerd_generic,
.write = &ixgbe_write_eeprom_generic,
.write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
.read_buffer = &ixgbe_read_eerd_buffer_generic,
.calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
.validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
.update_checksum = &ixgbe_update_eeprom_checksum_generic,
.read_pba_string = &ixgbe_read_pba_string_generic,
};
static const struct ixgbe_phy_operations phy_ops_82598 = {
.identify = &ixgbe_identify_phy_generic,
.identify_sfp = &ixgbe_identify_module_generic,
.init = &ixgbe_init_phy_ops_82598,
.reset = &ixgbe_reset_phy_generic,
.read_reg = &ixgbe_read_phy_reg_generic,
.write_reg = &ixgbe_write_phy_reg_generic,
.read_reg_mdi = &ixgbe_read_phy_reg_mdi,
.write_reg_mdi = &ixgbe_write_phy_reg_mdi,
.setup_link = &ixgbe_setup_phy_link_generic,
.setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
.read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_82598,
.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
.check_overtemp = &ixgbe_tn_check_overtemp,
};
const struct ixgbe_info ixgbe_82598_info = {
.mac = ixgbe_mac_82598EB,
.get_invariants = &ixgbe_get_invariants_82598,
.mac_ops = &mac_ops_82598,
.eeprom_ops = &eeprom_ops_82598,
.phy_ops = &phy_ops_82598,
.mvals = ixgbe_mvals_8259X,
};
Messung V0.5 in Prozent C=93 H=89 G=90
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet am 2026-10-04)
¤
*© Formatika GbR, Deutschland
2026-10-10
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