Linux Manuals session 8

IBCCQUERY – query congestion control settings/info Synopsis ibccquery [common_options] [-c cckey] <op> <lid|guid> [port] Description ibccquery support the querying of settings and other information related to congestion control. Options Current supported operations and their parameters: CongestionInfo (CI) <addr> CongestionKeyInfo (CK) <addr> CongestionLog (CL) <addr> SwitchCongestionSetting (SS) <addr> SwitchPortCongestionSetting (SP) <addr> [<portnum>] CACongestionSetting (CS) <addr> CongestionControlTable…

IBCCCONFIG – configure congestion control settings Synopsis ibccconfig [common_options] [-c cckey] <op> <lid|guid> [port] Description ibccconfig supports the configuration of congestion control settings on switches and HCAs. WARNING — You should understand what you are doing before using this tool. Misuse of this tool could result in a broken fabric. Options Current supported operations and…

IBCACHEEDIT – Edit An Ibnetdiscover Cache Synopsis ibcacheedit [options] <orig.cache> <new.cache> Description ibcacheedit allows users to edit an ibnetdiscover cache created through the –cache option in ibnetdiscover(8) . Options –switchguid BEFOREGUID:AFTERGUID Specify a switchguid that should be changed. The before and after guid should be separated by a colon. On switches, port guids are identical…

IBADDR – query InfiniBand address(es) Synopsis ibaddr [options] Description Display the lid (and range) as well as the GID address of the port specified (by DR path, lid, or GUID) or the local port by default. Note: this utility can be used as simple address resolver. Options –gid_show, -g show gid address only –lid_show, -l…

ipmiutil_alarms – display and set alarm indicators Synopsis ipmiutil alarms [-abcdimnoprx -N node -U user -P/-R pswd -EFJTVY] Description ipmiutil alarms is a program that uses IPMI commands to display and set alarm indicators, which are usually LEDs on the system chassis front panel. This utility can use either the /dev/ipmi0 driver from OpenIPMI, the…

setarch – change reported architecture in new program environment and/or set personality flags Synopsis setarch [arch] [options] [program [argument…]] setarch –list|-h|-V arch [options] [program [argument…]] Description setarch modifies execution domains and process personality flags. The execution domains currently only affects the output of uname -m. For example, on an AMD64 system, running setarch i386 program…

i2cset – set I2C registers Synopsis i2cset [-f] [-y] [-m mask] [-r] i2cbus chip-address data-address [value [mode]] i2cset -V Description i2cset is a small helper program to set registers visible through the I2C bus. Options -V Display the version and exit. -f Force access to the device even if it is already busy. By default,…

i2cget – read from I2C/SMBus chip registers Synopsis i2cget [-f] [-y] i2cbus chip-address [data-address [mode]] i2cget -V Description i2cget is a small helper program to read registers visible through the I2C bus (or SMBus). Options -V Display the version and exit. -f Force access to the device even if it is already busy. By default,…

i2cdump – examine I2C registers Synopsis i2cdump [-f] [-r first-last] [-y] i2cbus address [mode [bank [bankreg]]] i2cdump -V Description i2cdump is a small helper program to examine registers visible through the I2C bus. Options -V Display the version and exit. -f Force access to the device even if it is already busy. By default, i2cdump…

i2cdetect – detect I2C chips Synopsis i2cdetect [-y] [-a] [-q|-r] i2cbus [first last] i2cdetect -F i2cbus i2cdetect -V i2cdetect -l Description i2cdetect is a userspace program to scan an I2C bus for devices. It outputs a table with the list of detected devices on the specified bus. i2cbus indicates the number or name of the…

i2c-stub-from-dump – feed i2c-stub with a dump file Synopsis i2c-stub-from-dump address dump-file Description i2c-stub-from-dump is a small helper script for the i2c-stub kernel driver. It lets you setup a fake I2C chip on the i2c-stub bus based on a dump of the chip you want to emulate. i2c-stub-from-dump requires i2cdetect and i2cset to be installed…

hypervvssd_selinux – Security Enhanced Linux Policy for the hypervvssd processes Description Security-Enhanced Linux secures the hypervvssd processes via flexible mandatory access control. The hypervvssd processes execute with the hypervvssd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

hypervkvp_selinux – Security Enhanced Linux Policy for the hypervkvp processes Description Security-Enhanced Linux secures the hypervkvp processes via flexible mandatory access control. The hypervkvp processes execute with the hypervkvp_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

hwloc_dhwd_selinux – Security Enhanced Linux Policy for the hwloc_dhwd processes Description Security-Enhanced Linux secures the hwloc_dhwd processes via flexible mandatory access control. The hwloc_dhwd processes execute with the hwloc_dhwd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

hwinfo – probe for hardware Synopsis hwinfo [ OPTIONS ] Description hwinfo is used to probe for the hardware present in the system. It can be used to generate a system overview log which can be later used for support. Options Note that running hwinfo without any options is roughly equivalent to ‘hwinfo –all –log=-‘….

hwclock_selinux – Security Enhanced Linux Policy for the hwclock processes Description Security-Enhanced Linux secures the hwclock processes via flexible mandatory access control. The hwclock processes execute with the hwclock_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

hwclock – time clocks utility Synopsis hwclock [function] [option…] Description hwclock is an administration tool for the time clocks. It can: display the Hardware Clock time; set the Hardware Clock to a specified time; set the Hardware Clock from the System Clock; set the System Clock from the Hardware Clock; compensate for Hardware Clock drift;…

hugeedit – Set default policy for backing text and data with hugepages Synopsis hugeedit binary hugeedit [options] binary Description hugectl runs processes with a specific policy for backing memory regions with hugepages. Ordinarily when processes are relinked with libhugetlbfs using the recommended linking method, either hugectl is required on each execution or environment variables must…

hugectl – Control policy for backing text, data and malloc() with hugepages Synopsis hugectl [options] command {arguments} Description hugectl runs processes with a specific policy for backing memory regions with hugepages. The use of hugepages benefit applications that use large amounts of address space and suffer a performance hit due to TLB misses. Policy is…

hugeadm – Configure the system huge page pools Synopsis hugeadm [options] Description hugeadm displays and configures the systems huge page pools. The size of the pools is set as a minimum and maximum threshold. The minimum value is allocated up front by the kernel and guaranteed to remain as hugepages until the pool is shrunk….