The Board Management software support board diagnostics. Please issue dis_diag to review the state of the card(s). If you have more than one card (host or target), please append '-a X' to specify which card you want to look at, where X is the adapter number - 0, 1, 2 or 3. These are assigned in sequence when the drivers are configured. Up to 4 cards is currently supported.

  # dis_diag -a 0 (for the first card in a multi-card system)

-----> Dis_diag will provide some information on the card;

Adapter 0 > Type                       : MXH932
            NodeId                     : 4
            Serial number              : MXH932-CC-000015
            MXH chip family            : Microchip - PFX GEN4
            MXH chip vendorId          : 0x11f8
            MXH chip device            : 0x4036
            MXH chip revision          : 0x0 (ZA)
            EEPROM version             : 08
            EEPROM vendor info         : 0x0000
            Firmware version           : 1.4
            Card revision              : CC


...the slot-interface;
            Clock mode slot            : Global
            Clock mode link            : Global
            PCIe slot state            : x16, Gen3 (8 GT/s)
            PCIe slot capabilities     : x16, Gen3 (8 GT/s)

...and the status of the link from the card;
            Link 0 uptime              : 84734 seconds
            Link 0 state               : ENABLED
            Link 0 state               : x16, Gen3 (8 GT/s)
            Link 0 required            : x16, Gen3 (8 GT/s)
            Link 0 capabilities        : x16, Gen3 (8 GT/s)


...If this host-card is connected to a supported target-card, dis_diag (-a 1) for that card would then show the target card;

Adapter 1 > Type                       : MXH932
            Mode                       : TARGET

...and show the cable-link as Link 0, and then the state of its slot as the slot;

            PCIe slot state            : x8, Gen4 (16 GT/s)
            PCIe slot capabilities     : x16, Gen4 (16 GT/s)
(...)
            Link 0 state               : x16, Gen4 (16 GT/s)
            Link 0 required            : x16, Gen4 (16 GT/s)
            Link 0 capabilities        : x16, Gen4 (16 GT/s)

...as above.

The slot and link-states can be checked to verify that the transparent connection is operating as expected. Dis_diag can also extract PCIe event-counters from the supported devices;

# dis_diag -a 0 -V 9

   No of uncorrectable slot error events ......... : 0
   No of correctable slot error events ........... : 0
(...)
   No of uncorrectable link error events ......... : 0
   No of correctable link error events  .......... : 0

...and details on these;

   Uncorrectable error cnt - PCIe Cable Link 0 ... : 0
       dlperr cnt ................................ : 0
       sdoenerr cnt .............................. : 0
       poisoned cnt .............................. : 0
       fcperr cnt ................................ : 0
(etc) 

      

To reset the PCIe error counters, please run dis_diag with the option -clear.

# dis_diag -clear
================================================================================
  Dolphin diagnostic tool --  dis_diag version 5.14.0 (Fri Aug  9 13:17:10 CEST 2019)
================================================================================


dis_diag compiled in 64 bit mode
Driver : Dolphin IRM (GX) 5.14.0-d Jul 28th 2019 (rev f8ba7b5)
Date   : on. 14. aug. 14:54:07 +0200 2019
System : Linux Xrox 3.10.0-957.12.2.el7.x86_64 #1 SMP Tue May 14 21:24:32 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Number of configured local adapters found: 1

Interrupt statistics is cleared for local adapter 0
AER Error statistics is cleared for local adapter 0
Reset reason statistics is cleared for local adapter 0
Reset history statistics is cleared for local adapter 0
 
No Diagnostic performed using this command line option
 
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