Configuring FCoE Hardware Offload
You can use the tunables listed in the following table to reduce CPU
utilization and improve performance on a system with FCoE ports. These tunables
are supported by the Intel 10 Gb Ethernet devices and set in the ixgbe.conf file.
Copy the /kernel/drv/ixgbe.conf to /etc/driver/drv/ixgbe.conf and modify the tunable values for your FCoE environment.
Table 6-1 FCoE Hardware Offload Tunable Parameters
| | | |
|---|
fcoe_txcrc_enable
| Controls whether the ixgbe driver offloads FC CRC
transactions for transmitted FCoE packets.
| 0 – Disable FC CRC transaction offload 1 – Enable FC CRC transaction offload
| 1
|
fcoe_lso_enable
| Controls whether the ixgbe driver offloads FC large
send transactions for transmitted FCoE packets.
| 0 – Disable FC LSO transaction offload 1 – Enable FC LSO transaction offload
| 1
|
fcoe_rxcrc_enable
| Controls whether the ixgbe driver offloads RC CRC
transactions for received FCoE packets.
| 0 – Disable FC RX CRC transaction offload 1 – Enable FC RX CRC transaction offload
| 1
|
fcoe_lro_enable
| Controls whether the ixgbe driver offloads FC large
receive transactions for received FCoE packets.
| 0 – Disable FC LRO transaction offload 1 – Enable FC LRO transaction offload
| 0
|
|