Changes and New Features

Introduced a new report on PCIe connectivity health based on a comparison of enabled/active speed and width.

Added support for "Fast Link Recovery" counters. 

Added support for On-Demand-Paging (ODP) counters.

Added support for fetching Programable Port Congestion Control Counters  (PPCC) at GA level. 

Added support for FLID at GA level.

Added support for fetching Programable Port Congestion Control Counters  (PPCC). 

This feature is at Technical Preview level.

Added support for FLID.

This feature is at Technical Preview level.

Added support for sending GMP MADs from user-space (Kernel bypass).

This feature is at Alpha level.

In-band auto-discovery for switch management IP.

This feature is available only in the UFM package.

Added support for Proactive FRN (pFRN) configuration and counters.

Added support for Hierarchy Info (A15 InfiniBand spec):

• Port Hierarchy Info
• Physical Hierarchy Info

Added support for CMIS cable.

Updated SLRG_16 and SLTP_16 registers.

PM Stage reports overflow & threshold for 3 counters only:

• SyncHeaderErrorCounter
• UnknownBlockCounter
• port_fec_uncorrectable_block_counter

Improved "Connectivity group" detection.

Added support for NDR InfiniBand link speed. 

AGUID stage is disabled by default.

To enable it, use the '--aguid' parameter.

• Enabled Adaptive Routing validation
• Performance improvement of routing checking
• Added new counters and diagnostic information:
  • SHARP: “SAT” (“Streaming Aggregation”) counters
  • PHY: Maximum PLR per second field in PPCNT
  • PHY: SLLM register
  • PHY: New SymbolBER thresholds
  • Adaptive Routing: PortARTrails counter
• Added support for SHARP security (AMKEY)
• Enabled reporting port counter differences when using "–pm_pause_time" (PM_DELTA section in db_csv)
• Added Dragonfly+ Topology Validation (--dfp, --dfp_opt [<max_cas>] )
• Added the option to report the version on the screen and in log file

• Added output similar to the results of the "ibnetdiscovery"
• ibdiagnet: Disabled the output by default for AR/FDBS files in routing stage
• Moved SHARP performance counters to db_csv
• Dumped by default FEC_MODE section in db_csv
• Improved AR connectivity check

• Flexible output control options (--enable_output , --disable_output, --path)
• Discovery only mode (–discovery_only)
• Support for MLNX Congestion Control counters
• “Fabric Summary” is enabled by default.
• Dates and versions in “nodes_info” file are printed in human-readable format.
• Dump files include ibdiagnet version and command line parameters.
• Added split mode to IBNL for “InfiniBand Smart Director Switches” (CS8500)

The performance of following steps in ibdiagnet have been improved:

• Routing validation
• Network discovery
• Virtualization stage
• Dump creation

Added a new option "- [ad_hoc]" which indicates the ad-hoc trees support in SHARP, and prevents warnings for tree_id duplication in the fabric

Value: <[csc][dsc][dscp][ad_hoc]>

This parameters enables fetching PPCC (Port Programable Congestion Control) counters.

Possible values:

• File path: In this cases ibdiagnet loads from file PPCC Algorithms
• Folder path: ibdiagnet loads all files from the directory
• Wildcard: ibdiagnet loads files according to wildcard matching.

For more information on the supported wildcard syntax refer to the manual page by typing `man 7 glob

ibdiagnet

--r_opt

Deprecated

The same functionality is supported by --disable_output option

Value: skip_far

Removed

Values: vs, far, rn, drnc, crnc

--pm_get_all

New

Get all PM counters by activate the following flags: --per_slvl_cntrs --sc --extended_speeds pm_per_lane

--pm_clear_all

New

Clear all PM counters by activate the following flags: --scr --pc

--ft_roots_regex_opt

New

Regular expression to select topology root nodes. To be applied to switch descriptions.

Value: <regular expression>

dump_only_skip_routing_tables

Added

Skips routing tables (LFTs) retrieving

rn

Deprecated

Dumps routing notification data to file (enabled by default)

drnc

Deprecated

Dumps routing notification port counters to file (enabled by default)

--ft

New

Enables Fat Tree Topology Validation (default - disabled)

--aguid

New

Collects AGUIDs

--enable_spst

Removed

SPST mode is enabled by default. Option was deprecated in 2.6.1

ibdiagnet

--smp_window

Upper limit and default are changed

Max: 256; default: 16

--gmp_window

Upper limit and default are changed

Max: 16384; default: 256

--am_key

New

Specifies default AMKEY for the fabric

--am_key_file

New

Specifies the path to file (AMKEY per GUID)

--smdb

New

Specifies the path to OpenSM SMDB file (required for Adaptive Routing & Dragonfly+ Topology validation)

--ber_threshold_table

New

Specifies the path to BER thresholds table file (BER per FEC)

--create_ber_threshold_table

New

Creates template file of BER threshold table

--enable_spst

Deprecated

SPST mode is enabled by default

--dfp

New

Enabling DFP Topology Validation (default - disabled)

--dfp_opt

New

Specifies comma separated DFP Topology Validation options

dfp_opt

<max_cas>

-

Specifies max number of CAs for “Root” switch in Dragonfly+ island (default: 1).

This parameter is mutual exclusive with --smdb

ibdmchk

--FAR

New

Adds support for input FAR file

--enable_output

New

Enable creation of specific dump file

--disable_output

New

Disable specific dump file

--path

New

Set custom path for specific dump file

--discovery_only

New

Discover IB fabric, save topology information into “db_csv” file and exit

--smp_window

Upper limit is changed

New max is 128

--gmp_window

Upper limit is changed

New max is 8192