[root@localhost ~]# mlxlink -d /dev/mst/mt4119_pciconf0 -m

Operational Info
----------------
State                           : Active
Physical state                  : LinkUp
Speed                           : IB-EDR
Width                           : 4x
FEC                             : Standard LL RS-FEC - RS(271,257)
Loopback Mode                   : No Loopback
Auto Negotiation                : ON

Supported Info
--------------
Enabled Link Speed              : 0x0000003f (EDR,FDR,FDR10,QDR,DDR,SDR)
Supported Cable Speed           : 0x00000001 (SDR)

Troubleshooting Info
--------------------
Status Opcode                   : 0
Group Opcode                    : N/A
Recommendation                  : No issue was observed.