def install_driver()

in azurelinuxagent/pa/rdma/centos.py [0:0]

• 25 lines of code
• 14 McCabe index (conditional complexity)

    def install_driver(self):
        """
        Install the KVP daemon and the appropriate RDMA driver package for the
        RDMA firmware.
        """

        # Check and install the KVP deamon if it not running
        time.sleep(10) # give some time for the hv_hvp_daemon to start up.
        kvpd_running = RDMAHandler.is_kvp_daemon_running()
        logger.info('RDMA: kvp daemon running: %s' % kvpd_running)
        if not kvpd_running:
            self.check_or_install_kvp_daemon()
        time.sleep(10) # wait for post-install reboot or kvp to come up

        # Find out RDMA firmware version and see if the existing package needs
        # updating or if the package is missing altogether (and install it)
        fw_version = self.get_rdma_version()
        if not fw_version:
            raise Exception('Cannot determine RDMA firmware version')
        logger.info("RDMA: found firmware version: {0}".format(fw_version))
        fw_version = self.get_int_rdma_version(fw_version)
        installed_pkg = self.get_rdma_package_info()
        if installed_pkg:
            logger.info(
                'RDMA: driver package present: {0}'.format(installed_pkg))
            if self.is_rdma_package_up_to_date(installed_pkg, fw_version):
                logger.info('RDMA: driver package is up-to-date')
                return
            else:
                logger.info('RDMA: driver package needs updating')
                self.update_rdma_package(fw_version)
        else:
            logger.info('RDMA: driver package is NOT installed')
            self.update_rdma_package(fw_version)