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linux/drivers/net/ethernet/intel/Kconfig
Faizal Rahim 5422570c00 igc: add support for frame preemption verification 
This patch implements the "ethtool --set-mm" callback to trigger the
frame preemption verification handshake.

Uses the MAC Merge Software Verification (mmsv) mechanism in ethtool
to perform the verification handshake for igc.
The structure fpe.mmsv is set by mmsv in ethtool and should remain
read-only for the driver.

Other mmsv callbacks:
a) configure_tx() -> not used yet at this point
   - igc lacks registers to configure FPE in the transmit direction, so
     this API is not utilized for now. When igc supports preemptible queue,
     driver will use this API to manage its configuration.

b) configure_pmac() -> not used
   - this callback dynamically controls pmac_enabled at runtime. For
     example, mmsv calls configure_pmac() and disables pmac_enabled when
     the link partner goes down, even if the user previously enabled it.
     The intention is to save power but it is not feasible in igc
     because it causes an endless adapter reset loop:

   1) Board A and Board B complete the verification handshake. Tx mode
      register for both boards are in TSN mode.
   2) Board B link goes down.

   On Board A:
   3) mmsv calls configure_pmac() with pmac_enabled = false.
   4) configure_pmac() in igc updates a new field based on pmac_enabled.
      Driver uses this field in igc_tsn_new_flags() to indicate that the
      user enabled/disabled FPE.
   5) configure_pmac() in igc calls igc_tsn_offload_apply() to check
      whether an adapter reset is needed. Calls existing logic in
      igc_tsn_will_tx_mode_change() and igc_tsn_new_flags().
   6) Since pmac_enabled is now disabled and no other TSN feature is
      active, igc_tsn_will_tx_mode_change() evaluates to true because Tx
      mode will switch from TSN to Legacy.
   7) Driver resets the adapter.
   8) Registers are set, and Tx mode switches to Legacy.
   9) When link partner is up, steps 3-8 repeat, but this time with
      pmac_enabled = true, reactivating TSN.
      igc_tsn_will_tx_mode_change() evaluates to true again, since Tx
      mode will switch from Legacy to TSN.
  10) Driver resets the adapter.
  11) Adapter reset completes, registers are set, and Tx mode switches to
      TSN.

  On Board B:
  12) Adapter reset on Board A at step 10 causes it to detect its link
      partner as down.
  13) Repeats steps 3-8.
  14) Once reset adapter on Board A is completed at step 11, it detects
      its link partner as up.
  15) Repeats steps 9-11.

   - this cycle repeats indefinitely. To avoid this issue, igc only uses
     mmsv.pmac_enabled to track whether FPE is enabled or disabled.

Co-developed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Co-developed-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Co-developed-by: Chwee-Lin Choong <chwee.lin.choong@intel.com>
Signed-off-by: Chwee-Lin Choong <chwee.lin.choong@intel.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Faizal Rahim <faizal.abdul.rahim@linux.intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-18 09:16:58 -07:00

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# SPDX-License-Identifier: GPL-2.0-only
#
# Intel network device configuration
#
config NET_VENDOR_INTEL
bool "Intel devices"
default y
help
If you have a network (Ethernet) card belonging to this class, say Y.
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause the configurator to skip all
the questions about Intel cards. If you say Y, you will be asked for
your specific card in the following questions.
if NET_VENDOR_INTEL
source "drivers/net/ethernet/intel/libeth/Kconfig"
source "drivers/net/ethernet/intel/libie/Kconfig"
config E100
tristate "Intel(R) PRO/100+ support"
depends on PCI
select MII
help
This driver supports Intel(R) PRO/100 family of adapters.
To verify that your adapter is supported, find the board ID number
on the adapter. Look for a label that has a barcode and a number
in the format 123456-001 (six digits hyphen three digits).
Use the above information and the Adapter & Driver ID Guide that
can be located at:
<http://support.intel.com>
to identify the adapter.
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/e100.rst>.
To compile this driver as a module, choose M here. The module
will be called e100.
config E1000
tristate "Intel(R) PRO/1000 Gigabit Ethernet support"
depends on PCI && HAS_IOPORT
help
This driver supports Intel(R) PRO/1000 gigabit ethernet family of
adapters. For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/e1000.rst>.
To compile this driver as a module, choose M here. The module
will be called e1000.
config E1000E
tristate "Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support"
depends on PCI && (!SPARC32 || BROKEN)
depends on PTP_1588_CLOCK_OPTIONAL
select CRC32
help
This driver supports the PCI-Express Intel(R) PRO/1000 gigabit
ethernet family of adapters. For PCI or PCI-X e1000 adapters,
use the regular e1000 driver For more information on how to
identify your adapter, go to the Adapter & Driver ID Guide that
can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/e1000e.rst>.
To compile this driver as a module, choose M here. The module
will be called e1000e.
config E1000E_HWTS
bool "Support HW cross-timestamp on PCH devices"
default y
depends on E1000E && X86
help
Say Y to enable hardware supported cross-timestamping on PCH
devices. The cross-timestamp is available through the PTP clock
driver precise cross-timestamp ioctl (PTP_SYS_OFFSET_PRECISE).
config IGB
tristate "Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support"
depends on PCI
depends on PTP_1588_CLOCK_OPTIONAL
select I2C
select I2C_ALGOBIT
help
This driver supports Intel(R) 82575/82576 gigabit ethernet family of
adapters. For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/igb.rst>.
To compile this driver as a module, choose M here. The module
will be called igb.
config IGB_HWMON
bool "Intel(R) PCI-Express Gigabit adapters HWMON support"
default y
depends on IGB && HWMON && !(IGB=y && HWMON=m)
help
Say Y if you want to expose thermal sensor data on Intel devices.
Some of our devices contain thermal sensors, both external and internal.
This data is available via the hwmon sysfs interface and exposes
the onboard sensors.
config IGB_DCA
bool "Direct Cache Access (DCA) Support"
default y
depends on IGB && DCA && !(IGB=y && DCA=m)
help
Say Y here if you want to use Direct Cache Access (DCA) in the
driver. DCA is a method for warming the CPU cache before data
is used, with the intent of lessening the impact of cache misses.
config IGBVF
tristate "Intel(R) 82576 Virtual Function Ethernet support"
depends on PCI
help
This driver supports Intel(R) 82576 virtual functions. For more
information on how to identify your adapter, go to the Adapter &
Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/igbvf.rst>.
To compile this driver as a module, choose M here. The module
will be called igbvf.
config IXGBE
tristate "Intel(R) 10GbE PCI Express adapters support"
depends on PCI
depends on PTP_1588_CLOCK_OPTIONAL
select MDIO
select NET_DEVLINK
select PLDMFW
select PHYLIB
help
This driver supports Intel(R) 10GbE PCI Express family of
adapters. For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst>.
To compile this driver as a module, choose M here. The module
will be called ixgbe.
config IXGBE_HWMON
bool "Intel(R) 10GbE PCI Express adapters HWMON support"
default y
depends on IXGBE && HWMON && !(IXGBE=y && HWMON=m)
help
Say Y if you want to expose the thermal sensor data on some of
our cards, via a hwmon sysfs interface.
config IXGBE_DCA
bool "Direct Cache Access (DCA) Support"
default y
depends on IXGBE && DCA && !(IXGBE=y && DCA=m)
help
Say Y here if you want to use Direct Cache Access (DCA) in the
driver. DCA is a method for warming the CPU cache before data
is used, with the intent of lessening the impact of cache misses.
config IXGBE_DCB
bool "Data Center Bridging (DCB) Support"
default n
depends on IXGBE && DCB
help
Say Y here if you want to use Data Center Bridging (DCB) in the
driver.
If unsure, say N.
config IXGBE_IPSEC
bool "IPSec XFRM cryptography-offload acceleration"
depends on IXGBE
depends on XFRM_OFFLOAD
default y
select XFRM_ALGO
help
Enable support for IPSec offload in ixgbe.ko
config IXGBEVF
tristate "Intel(R) 10GbE PCI Express Virtual Function Ethernet support"
depends on PCI_MSI
help
This driver supports Intel(R) PCI Express virtual functions for the
Intel(R) ixgbe driver. For more information on how to identify your
adapter, go to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/ixgbevf.rst>.
To compile this driver as a module, choose M here. The module
will be called ixgbevf. MSI-X interrupt support is required
for this driver to work correctly.
config IXGBEVF_IPSEC
bool "IPSec XFRM cryptography-offload acceleration"
depends on IXGBEVF
depends on XFRM_OFFLOAD
default y
select XFRM_ALGO
help
Enable support for IPSec offload in ixgbevf.ko
config I40E
tristate "Intel(R) Ethernet Controller XL710 Family support"
depends on PTP_1588_CLOCK_OPTIONAL
depends on PCI
select AUXILIARY_BUS
select LIBIE
select NET_DEVLINK
help
This driver supports Intel(R) Ethernet Controller XL710 Family of
devices. For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/i40e.rst>.
To compile this driver as a module, choose M here. The module
will be called i40e.
config I40E_DCB
bool "Data Center Bridging (DCB) Support"
default n
depends on I40E && DCB
help
Say Y here if you want to use Data Center Bridging (DCB) in the
driver.
If unsure, say N.
# this is here to allow seamless migration from I40EVF --> IAVF name
# so that CONFIG_IAVF symbol will always mirror the state of CONFIG_I40EVF
config IAVF
tristate
select LIBIE
select NET_SHAPER
config I40EVF
tristate "Intel(R) Ethernet Adaptive Virtual Function support"
select IAVF
depends on PCI_MSI
depends on PTP_1588_CLOCK_OPTIONAL
help
This driver supports virtual functions for Intel XL710,
X710, X722, XXV710, and all devices advertising support for
Intel Ethernet Adaptive Virtual Function devices. For more
information on how to identify your adapter, go to the Adapter
& Driver ID Guide that can be located at:
<https://support.intel.com>
This driver was formerly named i40evf.
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/iavf.rst>.
To compile this driver as a module, choose M here. The module
will be called iavf. MSI-X interrupt support is required
for this driver to work correctly.
config ICE
tristate "Intel(R) Ethernet Connection E800 Series Support"
default n
depends on PCI_MSI
depends on PTP_1588_CLOCK_OPTIONAL
depends on GNSS || GNSS = n
select AUXILIARY_BUS
select DIMLIB
select LIBIE
select NET_DEVLINK
select PACKING
select PLDMFW
select DPLL
help
This driver supports Intel(R) Ethernet Connection E800 Series of
devices. For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/ice.rst>.
To compile this driver as a module, choose M here. The module
will be called ice.
config ICE_HWMON
bool "Intel(R) Ethernet Connection E800 Series Support HWMON support"
default y
depends on ICE && HWMON && !(ICE=y && HWMON=m)
help
Say Y if you want to expose thermal sensor data on Intel devices.
Some of our devices contain internal thermal sensors.
This data is available via the hwmon sysfs interface and exposes
the onboard sensors.
config ICE_SWITCHDEV
bool "Switchdev Support"
default y
depends on ICE && NET_SWITCHDEV
help
Switchdev support provides internal SRIOV packet steering and switching.
To enable it on running kernel use devlink tool:
#devlink dev eswitch set pci/0000:XX:XX.X mode switchdev
Say Y here if you want to use Switchdev in the driver.
If unsure, say N.
config ICE_HWTS
bool "Support HW cross-timestamp on platforms with PTM support"
default y
depends on ICE && X86 && PCIE_PTM
help
Say Y to enable hardware supported cross-timestamping on platforms
with PCIe PTM support. The cross-timestamp is available through
the PTP clock driver precise cross-timestamp ioctl
(PTP_SYS_OFFSET_PRECISE).
config FM10K
tristate "Intel(R) FM10000 Ethernet Switch Host Interface Support"
default n
depends on PCI_MSI
depends on PTP_1588_CLOCK_OPTIONAL
help
This driver supports Intel(R) FM10000 Ethernet Switch Host
Interface. For more information on how to identify your adapter,
go to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/intel/fm10k.rst>.
To compile this driver as a module, choose M here. The module
will be called fm10k. MSI-X interrupt support is required
config IGC
tristate "Intel(R) Ethernet Controller I225-LM/I225-V support"
default n
depends on PCI
depends on PTP_1588_CLOCK_OPTIONAL
depends on ETHTOOL_NETLINK
help
This driver supports Intel(R) Ethernet Controller I225-LM/I225-V
family of adapters.
For more information on how to identify your adapter, go
to the Adapter & Driver ID Guide that can be located at:
<http://support.intel.com>
To compile this driver as a module, choose M here. The module
will be called igc.
config IGC_LEDS
def_bool LEDS_TRIGGER_NETDEV
depends on IGC && LEDS_CLASS
depends on LEDS_CLASS=y || IGC=m
help
Optional support for controlling the NIC LED's with the netdev
LED trigger.
source "drivers/net/ethernet/intel/idpf/Kconfig"
endif # NET_VENDOR_INTEL
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