From: Vamsi Attunuru <vattun...@marvell.com> --- V11 Changes: * Added iova to kva address translation routines in kernel module to make it work in iova=va mode which enables DPDK to create kni devices on any kind of backed device/memory. * Added ``--legacy-kni`` eal option to make existing KNI applications work with DPDK 19.11 and later versions. * Removed previously added pci device info from kni device info struct. V10 Changes: * Fixed function return code on failure when min_chunk_size > pg_sz. * Marked new mempool populate routine as EXPERIMENTAL. V9 Changes: * Used rte_mempool_ops_calc_mem_size() instead of default handler in the new mempool populate routine. * Check min_chunk_size and return values. * Removed ethdev_info memset to '0' and moved pci dev_info populate into kni_dev_pci_addr_get() routine. * Addressed misc. review comments. V8 Changes: * Remove default mempool populate() routine changes. * Add kni app specific mempool create & free routines. * Add new mempool populate routine to allocate page-aligned memzones with page size to make sure all mempool objects reside on a page. * Update release notes and map files. V7 Changes: * Removed previously proposed mempool flag and made those page boundary checks default in mempool populate() except for the objects size bigger than the size of page. * Removed KNI example application related changes since pool related requirement is taken care in mempool lib. * All PCI dev related info is moved under rte_eal_iova_mode() == VA check. * Added wrapper functions in KNI module to hide IOVA checks and make address translation routines more readable. * Updated IOVA mode checks that enforcing IOVA=PA mode when IOVA=VA mode is enabled. V6 Changes: * Added new mempool flag to ensure mbuf memory is not scattered across page boundaries. * Added KNI kernel module required PCI device information. * Modified KNI example application to create mempool with new mempool flag. V5 changes: * Fixed build issue with 32b build V4 changes: * Fixed build issues with older kernel versions * This approach will only work with kernel above 4.4.0 V3 Changes: * Add new approach to work kni with IOVA=VA mode using iommu_iova_to_phys API.
Vamsi Attunuru (4): mempool: populate mempool with the page sized chunks eal: add legacy kni option kni: add IOVA=VA support kni: add IOVA=VA support in kernel module doc/guides/prog_guide/kernel_nic_interface.rst | 26 +++++++++ doc/guides/rel_notes/release_19_11.rst | 17 ++++++ examples/kni/main.c | 6 +- kernel/linux/kni/compat.h | 4 ++ kernel/linux/kni/kni_dev.h | 31 ++++++++++ kernel/linux/kni/kni_misc.c | 39 ++++++++++--- kernel/linux/kni/kni_net.c | 58 ++++++++++++++----- lib/librte_eal/common/eal_common_options.c | 5 ++ lib/librte_eal/common/eal_internal_cfg.h | 2 + lib/librte_eal/common/eal_options.h | 2 + lib/librte_eal/linux/eal/eal.c | 40 +++++++++---- lib/librte_eal/linux/eal/include/rte_kni_common.h | 1 + lib/librte_kni/Makefile | 1 + lib/librte_kni/meson.build | 1 + lib/librte_kni/rte_kni.c | 67 ++++++++++++++++++++-- lib/librte_kni/rte_kni.h | 48 ++++++++++++++++ lib/librte_kni/rte_kni_version.map | 3 + lib/librte_mempool/rte_mempool.c | 69 +++++++++++++++++++++++ lib/librte_mempool/rte_mempool.h | 20 +++++++ lib/librte_mempool/rte_mempool_version.map | 2 + 20 files changed, 402 insertions(+), 40 deletions(-) -- 2.8.4
