scripts/pkgdep.sh script will automatically install the full set of dependencies required to build and develop SPDK.
FreeBSD: Note: Make sure you have the matching kernel source in /usr/src/
There are a number of options available for the configure script, which can be viewed by running
Note that not all features are enabled by default. For example, RDMA support (and hence NVMe over Fabrics) is not enabled by default. You can enable it by doing the following:
It's always a good idea to confirm your build worked by running the unit tests.
You will see several error messages when running the unit tests, but they are part of the test suite. The final message at the end of the script indicates success or failure.
Before running an SPDK application, some hugepages must be allocated and any NVMe and I/OAT devices must be unbound from the native kernel drivers. SPDK includes a script to automate this process on both Linux and FreeBSD. This script should be run as root. It only needs to be run once on the system.
To rebind devices back to the kernel, you can run
By default, the script allocates 2048MB of hugepages. To change this number, specify HUGEMEM (in MB) as follows:
On Linux machines HUGEMEM will be rounded up to system-default huge page size boundary.
All available params can be viewed by running
Example code is located in the examples directory. The examples are compiled automatically as part of the build process. Simply call any of the examples with no arguments to see the help output. If your system has its IOMMU enabled you can run the examples as your regular user. If it doesn't, you'll need to run as a privileged user (root).
A good example to start with is
examples/nvme/identify, which prints out information about all of the NVMe devices on your system.
Larger, more fully functional applications are available in the
app directory. This includes the iSCSI and NVMe-oF target.