Users Guide

3–Driver Installation
Installing Linux Driver Software
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5. Install libqedr libraries to work with RDMA user space applications. The
libqedr RPM is available only for inbox OFED. You must select which RDMA
(RoCE, RoCEv2, or iWARP) is used in UEFI until concurrent RoCE+iWARP
capability is supported in the firmware). None is enabled by default. Issue
the following command:
rpm –ivh qlgc-libqedr-<version>.<arch>.rpm
6. To build and install the libqedr user space library, issue the following
command:
'make libqedr_install'
7. Test the drivers by loading them as follows:
modprobe qedr
make install_libeqdr
Linux Driver Optional Parameters
Table 3-2 describes the optional parameters for the qede driver.
Table 3-2. qede Driver Optional Parameters
Parameter Description
debug Controls driver verbosity level similar to ethtool -s <dev> msglvl.
int_mode Controls interrupt mode other than MSI-X.
gro_enable Enables or disables the hardware generic receive offload (GRO) feature.
This feature is similar to the kernel's software GRO, but is only performed
by the device hardware.
err_flags_override A bitmap for disabling or forcing the actions taken in case of a hardware
error:
 bit #31 – An enable bit for this bitmask
 bit #0 – Prevent hardware attentions from being reasserted
 bit #1 – Collect debug data
 bit #2 – Trigger a recovery process
 bit #3 – Call WARN to get a call trace of the flow that led to the error