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linux/drivers/atm/Kconfig
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

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# SPDX-License-Identifier: GPL-2.0
#
# ATM device configuration
#
menuconfig ATM_DRIVERS
bool "ATM drivers"
depends on NETDEVICES && ATM
default y
---help---
Say Y here to get to see options for Asynchronous Transfer Mode
device drivers. This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and disabled.
if ATM_DRIVERS && NETDEVICES && ATM
config ATM_DUMMY
tristate "Dummy ATM driver"
help
Dummy ATM driver. Useful for proxy signalling, testing,
and development. If unsure, say N.
config ATM_TCP
tristate "ATM over TCP"
depends on INET
help
ATM over TCP driver. Useful mainly for development and for
experiments. If unsure, say N.
config ATM_LANAI
tristate "Efficient Networks Speedstream 3010"
depends on PCI && ATM
help
Supports ATM cards based on the Efficient Networks "Lanai"
chipset such as the Speedstream 3010 and the ENI-25p. The
Speedstream 3060 is currently not supported since we don't
have the code to drive the on-board Alcatel DSL chipset (yet).
config ATM_ENI
tristate "Efficient Networks ENI155P"
depends on PCI
---help---
Driver for the Efficient Networks ENI155p series and SMC ATM
Power155 155 Mbps ATM adapters. Both, the versions with 512KB and
2MB on-board RAM (Efficient calls them "C" and "S", respectively),
and the FPGA and the ASIC Tonga versions of the board are supported.
The driver works with MMF (-MF or ...F) and UTP-5 (-U5 or ...D)
adapters.
To compile this driver as a module, choose M here: the module will
be called eni.
config ATM_ENI_DEBUG
bool "Enable extended debugging"
depends on ATM_ENI
help
Extended debugging records various events and displays that list
when an inconsistency is detected. This mechanism is faster than
generally using printks, but still has some impact on performance.
Note that extended debugging may create certain race conditions
itself. Enable this ONLY if you suspect problems with the driver.
config ATM_ENI_TUNE_BURST
bool "Fine-tune burst settings"
depends on ATM_ENI
---help---
In order to obtain good throughput, the ENI NIC can transfer
multiple words of data per PCI bus access cycle. Such a multi-word
transfer is called a burst.
The default settings for the burst sizes are suitable for most PCI
chipsets. However, in some cases, large bursts may overrun buffers
in the PCI chipset and cause data corruption. In such cases, large
bursts must be disabled and only (slower) small bursts can be used.
The burst sizes can be set independently in the send (TX) and
receive (RX) direction.
Note that enabling many different burst sizes in the same direction
may increase the cost of setting up a transfer such that the
resulting throughput is lower than when using only the largest
available burst size.
Also, sometimes larger bursts lead to lower throughput, e.g. on an
Intel 440FX board, a drop from 135 Mbps to 103 Mbps was observed
when going from 8W to 16W bursts.
config ATM_ENI_BURST_TX_16W
bool "Enable 16W TX bursts (discouraged)"
depends on ATM_ENI_TUNE_BURST
help
Burst sixteen words at once in the send direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets.
config ATM_ENI_BURST_TX_8W
bool "Enable 8W TX bursts (recommended)"
depends on ATM_ENI_TUNE_BURST
help
Burst eight words at once in the send direction. This is the default
setting.
config ATM_ENI_BURST_TX_4W
bool "Enable 4W TX bursts (optional)"
depends on ATM_ENI_TUNE_BURST
help
Burst four words at once in the send direction. You may want to try
this if you have disabled 8W bursts. Enabling 4W if 8W is also set
may or may not improve throughput.
config ATM_ENI_BURST_TX_2W
bool "Enable 2W TX bursts (optional)"
depends on ATM_ENI_TUNE_BURST
help
Burst two words at once in the send direction. You may want to try
this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or 8W
are also set may or may not improve throughput.
config ATM_ENI_BURST_RX_16W
bool "Enable 16W RX bursts (discouraged)"
depends on ATM_ENI_TUNE_BURST
help
Burst sixteen words at once in the receive direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets.
config ATM_ENI_BURST_RX_8W
bool "Enable 8W RX bursts (discouraged)"
depends on ATM_ENI_TUNE_BURST
help
Burst eight words at once in the receive direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets,
such as the Intel Neptune series.
config ATM_ENI_BURST_RX_4W
bool "Enable 4W RX bursts (recommended)"
depends on ATM_ENI_TUNE_BURST
help
Burst four words at once in the receive direction. This is the
default setting. Enabling 4W if 8W is also set may or may not
improve throughput.
config ATM_ENI_BURST_RX_2W
bool "Enable 2W RX bursts (optional)"
depends on ATM_ENI_TUNE_BURST
help
Burst two words at once in the receive direction. You may want to
try this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or
8W are also set may or may not improve throughput.
config ATM_FIRESTREAM
tristate "Fujitsu FireStream (FS50/FS155) "
depends on PCI && VIRT_TO_BUS
help
Driver for the Fujitsu FireStream 155 (MB86697) and
FireStream 50 (MB86695) ATM PCI chips.
To compile this driver as a module, choose M here: the module will
be called firestream.
config ATM_ZATM
tristate "ZeitNet ZN1221/ZN1225"
depends on PCI && VIRT_TO_BUS
help
Driver for the ZeitNet ZN1221 (MMF) and ZN1225 (UTP-5) 155 Mbps ATM
adapters.
To compile this driver as a module, choose M here: the module will
be called zatm.
config ATM_ZATM_DEBUG
bool "Enable extended debugging"
depends on ATM_ZATM
help
Extended debugging records various events and displays that list
when an inconsistency is detected. This mechanism is faster than
generally using printks, but still has some impact on performance.
Note that extended debugging may create certain race conditions
itself. Enable this ONLY if you suspect problems with the driver.
config ATM_NICSTAR
tristate "IDT 77201 (NICStAR) (ForeRunnerLE)"
depends on PCI
help
The NICStAR chipset family is used in a large number of ATM NICs for
25 and for 155 Mbps, including IDT cards and the Fore ForeRunnerLE
series. Say Y if you have one of those.
To compile this driver as a module, choose M here: the module will
be called nicstar.
config ATM_NICSTAR_USE_SUNI
bool "Use suni PHY driver (155Mbps)"
depends on ATM_NICSTAR
help
Support for the S-UNI and compatible PHYsical layer chips. These are
found in most 155Mbps NICStAR based ATM cards, namely in the
ForeRunner LE155 cards. This driver provides detection of cable~
removal and reinsertion and provides some statistics. This driver
doesn't have removal capability when compiled as a module, so if you
need that capability don't include S-UNI support (it's not needed to
make the card work).
config ATM_NICSTAR_USE_IDT77105
bool "Use IDT77015 PHY driver (25Mbps)"
depends on ATM_NICSTAR
help
Support for the PHYsical layer chip in ForeRunner LE25 cards. In
addition to cable removal/reinsertion detection, this driver allows
you to control the loopback mode of the chip via a dedicated IOCTL.
This driver is required for proper handling of temporary carrier
loss, so if you have a 25Mbps NICStAR based ATM card you must say Y.
config ATM_IDT77252
tristate "IDT 77252 (NICStAR II)"
depends on PCI
help
Driver for the IDT 77252 ATM PCI chips.
To compile this driver as a module, choose M here: the module will
be called idt77252.
config ATM_IDT77252_DEBUG
bool "Enable debugging messages"
depends on ATM_IDT77252
help
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument. See the file <file:drivers/atm/idt77252.h> for
the meanings of the bits in the mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
config ATM_IDT77252_RCV_ALL
bool "Receive ALL cells in raw queue"
depends on ATM_IDT77252
help
Enable receiving of all cells on the ATM link, that do not match
an open connection in the raw cell queue of the driver. Useful
for debugging or special applications only, so the safe answer is N.
config ATM_IDT77252_USE_SUNI
bool
depends on ATM_IDT77252
default y
config ATM_AMBASSADOR
tristate "Madge Ambassador (Collage PCI 155 Server)"
depends on PCI && VIRT_TO_BUS
select BITREVERSE
help
This is a driver for ATMizer based ATM card produced by Madge
Networks Ltd. Say Y (or M to compile as a module named ambassador)
here if you have one of these cards.
config ATM_AMBASSADOR_DEBUG
bool "Enable debugging messages"
depends on ATM_AMBASSADOR
---help---
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (not yet) or changed by sending the
string "Dxxxx" to VCI 1023 (where x is a hex digit). See the file
<file:drivers/atm/ambassador.h> for the meanings of the bits in the
mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
config ATM_HORIZON
tristate "Madge Horizon [Ultra] (Collage PCI 25 and Collage PCI 155 Client)"
depends on PCI && VIRT_TO_BUS
help
This is a driver for the Horizon chipset ATM adapter cards once
produced by Madge Networks Ltd. Say Y (or M to compile as a module
named horizon) here if you have one of these cards.
config ATM_HORIZON_DEBUG
bool "Enable debugging messages"
depends on ATM_HORIZON
---help---
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (not yet) or changed by sending the
string "Dxxxx" to VCI 1023 (where x is a hex digit). See the file
<file:drivers/atm/horizon.h> for the meanings of the bits in the
mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
config ATM_IA
tristate "Interphase ATM PCI x575/x525/x531"
depends on PCI
---help---
This is a driver for the Interphase (i)ChipSAR adapter cards
which include a variety of variants in term of the size of the
control memory (128K-1KVC, 512K-4KVC), the size of the packet
memory (128K, 512K, 1M), and the PHY type (Single/Multi mode OC3,
UTP155, UTP25, DS3 and E3). Go to:
<http://www.iphase.com/>
for more info about the cards. Say Y (or M to compile as a module
named iphase) here if you have one of these cards.
See the file <file:Documentation/networking/iphase.txt> for further
details.
config ATM_IA_DEBUG
bool "Enable debugging messages"
depends on ATM_IA
---help---
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (Get the debug utility, iadbg, from
<ftp://ftp.iphase.com/pub/atm/pci/>).
See the file <file:drivers/atm/iphase.h> for the meanings of the
bits in the mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
config ATM_FORE200E
tristate "FORE Systems 200E-series"
depends on (PCI || SBUS)
select FW_LOADER
---help---
This is a driver for the FORE Systems 200E-series ATM adapter
cards. It simultaneously supports PCA-200E and SBA-200E models
on PCI and SBUS hosts. Say Y (or M to compile as a module
named fore_200e) here if you have one of these ATM adapters.
See the file <file:Documentation/networking/fore200e.txt> for
further details.
config ATM_FORE200E_USE_TASKLET
bool "Defer interrupt work to a tasklet"
depends on ATM_FORE200E
default n
help
This defers work to be done by the interrupt handler to a
tasklet instead of handling everything at interrupt time. This
may improve the responsive of the host.
config ATM_FORE200E_TX_RETRY
int "Maximum number of tx retries"
depends on ATM_FORE200E
default "16"
---help---
Specifies the number of times the driver attempts to transmit
a message before giving up, if the transmit queue of the ATM card
is transiently saturated.
Saturation of the transmit queue may occur only under extreme
conditions, e.g. when a fast host continuously submits very small
frames (<64 bytes) or raw AAL0 cells (48 bytes) to the ATM adapter.
Note that under common conditions, it is unlikely that you encounter
a saturation of the transmit queue, so the retry mechanism never
comes into play.
config ATM_FORE200E_DEBUG
int "Debugging level (0-3)"
depends on ATM_FORE200E
default "0"
help
Specifies the level of debugging messages issued by the driver.
The verbosity of the driver increases with the value of this
parameter.
When active, these messages can have a significant impact on
the performances of the driver, and the size of your syslog files!
Keep the debugging level to 0 during normal operations.
config ATM_HE
tristate "ForeRunner HE Series"
depends on PCI
help
This is a driver for the Marconi ForeRunner HE-series ATM adapter
cards. It simultaneously supports the 155 and 622 versions.
config ATM_HE_USE_SUNI
bool "Use S/UNI PHY driver"
depends on ATM_HE
help
Support for the S/UNI-Ultra and S/UNI-622 found in the ForeRunner
HE cards. This driver provides carrier detection some statistics.
config ATM_SOLOS
tristate "Solos ADSL2+ PCI Multiport card driver"
depends on PCI
select FW_LOADER
help
Support for the Solos multiport ADSL2+ card.
endif # ATM
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