[dpdk-dev] [PATCH v11 0/4] kni: add IOVA=VA mode support
vattunuru at marvell.com
vattunuru at marvell.com
Mon Oct 21 10:03:20 CEST 2019
From: Vamsi Attunuru <vattunuru at 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
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