c2361bab70
Currently, if the bus selects IOVA as PA, the memory init can fail when lacking access to physical addresses. This can be quite hard for normal users to understand what is wrong since this is the default behavior. Catch this situation earlier in eal init by validating physical addresses availability, or select IOVA when no clear preferrence had been expressed. The bus code is changed so that it reports when it does not care about the IOVA mode and let the eal init decide. In Linux implementation, rework rte_eal_using_phys_addrs() so that it can be called earlier but still avoid a circular dependency with rte_mem_virt2phys(). In FreeBSD implementation, rte_eal_using_phys_addrs() always returns false, so the detection part is left as is. If librte_kni is compiled in and the KNI kmod is loaded, - if the buses requested VA, force to PA if physical addresses are available as it was done before, - else, keep iova as VA, KNI init will fail later. Signed-off-by: Ben Walker <benjamin.walker@intel.com> Signed-off-by: David Marchand <david.marchand@redhat.com> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org