Migrating from QNX SDP 7.1 io-sock to QNX SDP 8.0 io-sock
The general drivers for Ethernet PHY, PCI bus, USB bus, and Flattened Device Tree bus
devices are now provided as modules. For more information, see Starting io-sock and Driver Management
in the
High-Performance Networking Stack (io-sock) User's
Guide and the mods-*.so entries in the Utilities
Reference.
Build changes
Some build modifications that were needed in QNX SDP 7.1 to allow an application to work with io-sock are not needed in the QNX SDP 8.0 envrionment.
The separate io-sock directory for io-sock binaries and libraries is no longer provided or required. Your application may fail to build because the io-sock directory for binaries is no longer present. Remove:
- path_to_libsocket from LIBVPATH, and
- path_to_io-sock from EXTRA_INCVPATH.
For more information about the LIBVPATH, INCVPATH,
and EXTRA_INCVPATH macros, see
The
common.mk file
in the QNX OS
Programmer's Guide.
Command-line options
Many of the QNX SDP 7.1 io-sock command-line options have been replaced by new or existing sysctl variables, which are set using the io-sock config option.
| QNX SDP 7.1 io-sock command-line option | QNX SDP 8 io-sock sysctl tunable |
|---|---|
| timer_pulse_prio | qnx.timer_prio |
| taskq_pulse_prio | qnx.taskq_prio |
| isr_pulse_prio | qnx.ist_prio |
| netisr_threads | net.isr.maxthreads |
| usb_stack | qnx.usb_stack_path |
| npnp_pci | qnx.pnp.pci (set to 0) |
| npnp_ofw | qnx.pnp.ofw (set to 0) |
| npnp_usb | qnx.pnp.usb (set to 0) |
| iolevel | qnx.iolevel |
The behavior that was set using the QNX SDP 7.1 io-sock options
ignore_usb, ignore_pci, and
ignore_phy is now the default behavior. Instead, you use the
io-sock
-m option to load the appropriate module (e.g., for Ethernet PHY
devices, specify -m phy).
The Device Tree Blob that was loaded from a file specified by the
io-sock option dtb in QNX SDP 7.1 is now
automatically loaded directly from a memory location specified in the system page.
Use -m fdt to load the Flattened Device Tree (FDT) mechanism when
you start io-sock.
For more information, see Starting io-sock and Driver Management
in
the High-Performance Networking Stack (io-sock) User's
Guide and the mods-*.so entries in the
Utilities Reference.
Drivers with PTP
In QNX SDP 8.0.1, io-sock networking drivers that implement the
Precision Time Protocol (PTP) in hardware must use the io-sock
PTP module to work with ptpd2. For detailed information, go to
Migrating io-sock
networking drivers with PTP to QNX SDP 8.0.1 io-sock.