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H A Dtrace_misc.h0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
H A Ddebugfs.h0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
H A Ddebugfs.c0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
H A Dverbs.h0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
H A Ddriver.c0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
H A Dverbs.c0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
0181ce31 Mon Mar 20 19:26:14 CDT 2017 Don Hiatt <don.hiatt@intel.com> IB/hfi1: Add receive fault injection feature

Add fault injection capability:
- Drop packets unconditionally (fault_by_packet)
- Drop packets based on opcode (fault_by_opcode)

This feature reacts to the global FAULT_INJECTION
config flag.

The faulting traces have been added:
- misc/fault_opcode
- misc/fault_packet

See 'Documentation/fault-injection/fault-injection.txt'
for details.

Examples:
- Dropping packets by opcode:
/sys/kernel/debug/hfi1/hfi1_X/fault_opcode
# Enable fault
echo Y > fault_by_opcode
# Setprobability of dropping (0-100%)
# echo 25 > probability
# Set opcode
echo 0x64 > opcode
# Number of times to fault
echo 3 > times
# An optional mask allows you to fault
# a range of opcodes
echo 0xf0 > mask
/sys/kernel/debug/hfi1/hfi1_X/fault_stats
contains a value in parentheses to indicate
number of each opcode dropped.

- Dropping packets unconditionally
/sys/kernel/debug/hfi1/hfi1_X/fault_packet
# Enable fault
echo Y > fault_by_packet
/sys/kernel/debug/hfi1/hfi1_X/fault_packet/fault_stats
contains the number of packets dropped.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>