Chelsio Communications Chelsio T5 Guia do Utilizador descarregar pdf (Página 249)

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Chapter XVIII. Classification and Filtering

Chelsio T5/T4 Unified Wire For Linux Page 249

 To list the both LE-TCAM and Hash/DDR filters set, run the following command:

[root@host]# cxgbtool ethX filter show

3.3. Removing Filter Rules

To remove a filter, run the following command with cap maskless parameter and corresponding

filter rule index:

[root@host]# cxgbtool ethX filter index <delete|clear> cap maskless

3.4. Swap MAC feature

Chelsio T5’s Swap MAC feature swaps packet source MAC and destination MAC addresses.

This is applicable only for switch filter rules. Here’s an example:

[root@host]# cxgbtool eth2 filter 1 action switch lip 102.2.2.1 fip

102.2.2.2 lport 5001 fport 14000 hitcnts 1 iport 1 eport 0 swapmac 1 proto

17 cap maskless

The above example will swap source and destination MAC addresses of UDP packets

(matching above 4 tuple) received on adapter port 1 and then switch them to port 0.

Filter rule index can be determined by referring the “hash_filters” file located in

/proc/drivers/cxgb4/<bus-id>/.

Note

This feature is currently supported only with Hash/DDR filters.

Note

For more information on additional parameters, refer cxgbtool manual by running

the man cxgbtool command.

Note

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