`TCAM`

TCAM control

Control an external TCAM (the knowledge-based processor attached to some Triumph 3 systems). Trident 3 systems have no external TCAM. On a SONiC Trident 3 switch tcam info fails with TCAM: ERROR: Feature unavailable, followed by the SAI shell’s Failed to execute the diagnostic command. Error: Operation failed.; the other sub-commands except init are expected to fail the same way or print TCAM info not found. Not initialized.

Warning

tcam init runs the Triumph 3 external-memory initialisation on the unit. Do not use it on a Trident 3.

Sub-commands (keywords in full, any case): info, write Partition=<p> Index=<i> Mask=<m> Data=<d> [Count=<n>] [Valid=<v>], dump Partition=<p> Index=<i> [Count=<n>] [Display=<bool>], search, ib, ima, dbreg, calc, prbs <set|get|clear> [poly=<0..3>] [seed=<n>] and latency, as in the built-in help.

Hardware-validated

drivshell> tcam info
TCAM: ERROR: Feature unavailable

Failed to execute the diagnostic command. Error: Operation failed.

Built-in help

Usages:
      tcam info
           - Show tcam configuration
      tcam write Partition=<part> Index=<index> Mask=<mask> Data=<data>
                 [Count=<count>][Valid=<v>]
      tcam dump Partition=<part> Index=<index> [Count=<count>]
                [Display=<boolean>]
      tcam search Partition=<part> [Partition2=<part>][Upper] Data=<data>
      tcam ib Addr=address Data=opcode
      tcam ima Addr=address [Data=<data>]
      tcam dbreg Addr=address [Data=<data>]
      tcam calc Partition=<part> Index=<index> Table=<table>
      tcam prbs <set>|<get>|<clear> [poly={0|1|2|3}] <seed>
           -For ex:
            tcam prbs set poly=3 seed=0xaaaaaaaa
      tcam latency
           - Calculate external tcam request response latency

TCAM

`TCAM`