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 can be set in the ixgbe.conf file.
Copy the /kernel/drv/ixgbe.conf file to /etc/driver/drv/ixgbe.conf file, and modify the tunable values for your FCoE environment.
Table 1 Hardware Offload Tunable Parameters
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fcoe_txcrc_enable
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Controls whether the ixgbe driver offloads FC CRC transactions for transmitted FCoE packets.
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1
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fcoe_lso_enable
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Controls whether the ixgbe driver offloads FC large send transactions for transmitted FCoE packets.
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1
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fcoe_rxcrc_enable
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Controls whether the ixgbe driver offloads RC CRC transactions for received FCoE packets.
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1
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fcoe_lro_enable
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Controls whether the ixgbe driver offloads FC large receive transactions for received FCoE packets.
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0
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For each parameter, a value of 0 disables the parameter and a value of 1 enables it.