Changing the hxge Driver Configuration

The hxge network interface configuration generally concerns parameters that are external to the driver/interface parameters such as the IP network address. There is also a set of configuration parameters that are internal to the hxge driver. These parameters are not normally changed, and improper setting of these parameters can easily result in a dysfunctional network interface.

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Caution - Improper setting of the hxge driver configuration parameters can adversely affect performance. Only experienced administrators should attempt to change an hxge driver configuration parameter.

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To see a list of the available hxge driver configuration parameters, use the modinfo(8) command.

host #> modinfo hxge 
    filename:       /lib/modules/2.6.18-164.el5/kernel/drivers/net/hxge.ko
    version:        1.2.7
    license:        GPL
    description:    Sun Microsystems(R) 10 Gigabit Network Driver
    author:         Sun Microsystems, john.doe@oracle.com
    srcversion:     270F053A5DE6A454D1D224D
    alias:          pci:v0000108Ed0000AAAAsv*sd*bc*sc*i*
    depends:        
    vermagic:       2.6.18-164.el5 SMP mod_unload gcc-4.1
    parm:           enable_jumbo:enable jumbo packets (int)
    parm:           intr_type:Interrupt type (INTx=0, MSI=1, MSIx=2, Polling=3) (int)
    [...]
    parm:           tcam_ipsec_ipv6:IPsec over IPv6 class (int)
    parm:           tcam_stcp_ipv6:STCP over IPv6 class (int)
    parm:           debug:Debug level (0=none,...,16=all) (int)

Each parm: line identifies an hxge driver configuration parameter that the system administrator can override when loading the hxge driver.

There are two ways to configure the driver parameters:

• How to Temporarily Configure the hxge Driver Parameters

• How to Permanently Configure the hxge Driver Parameters

The driver configuration parameters are described here: hxge Driver Configuration Parameters.