[v8,0/5] kni: add IOVA=VA support

  From: Vamsi Attunuru <vattunuru@marvell.com>

---
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.

Kiran Kumar K (1):
  kni: add IOVA=VA support in KNI module

Vamsi Attunuru (4):
  mempool: populate mempool with page sized chunks of memory
  add IOVA -VA support in KNI lib
  kni: add app specific mempool create & free routine
  kni: modify IOVA mode checks to support VA

 doc/guides/prog_guide/kernel_nic_interface.rst    |   8 ++
 doc/guides/rel_notes/release_19_08.rst            |   6 ++
 examples/kni/main.c                               |   6 +-
 kernel/linux/kni/compat.h                         |   4 +
 kernel/linux/kni/kni_dev.h                        |   4 +
 kernel/linux/kni/kni_misc.c                       |  71 +++++++++++++--
 kernel/linux/kni/kni_net.c                        |  59 ++++++++++---
 lib/librte_eal/linux/eal/eal.c                    |   4 +-
 lib/librte_eal/linux/eal/include/rte_kni_common.h |   8 ++
 lib/librte_kni/Makefile                           |   2 +
 lib/librte_kni/meson.build                        |   2 +
 lib/librte_kni/rte_kni.c                          | 100 ++++++++++++++++++++--
 lib/librte_kni/rte_kni.h                          |  49 +++++++++++
 lib/librte_kni/rte_kni_version.map                |   2 +
 lib/librte_mempool/rte_mempool.c                  |  59 +++++++++++++
 lib/librte_mempool/rte_mempool.h                  |  17 ++++
 lib/librte_mempool/rte_mempool_version.map        |   1 +
 17 files changed, 373 insertions(+), 29 deletions(-)
  

Ping,

Req for V8 review comments..

> -----Original Message-----
> From: vattunuru@marvell.com <vattunuru@marvell.com>
> Sent: Tuesday, July 23, 2019 11:08 AM
> To: dev@dpdk.org
> Cc: thomas@monjalon.net; Jerin Jacob Kollanukkaran <jerinj@marvell.com>;
> olivier.matz@6wind.com; ferruh.yigit@intel.com; anatoly.burakov@intel.com;
> arybchenko@solarflare.com; Kiran Kumar Kokkilagadda
> <kirankumark@marvell.com>; Vamsi Krishna Attunuru
> <vattunuru@marvell.com>
> Subject: [dpdk-dev] [PATCH v8 0/5] kni: add IOVA=VA support
> 
> From: Vamsi Attunuru <vattunuru@marvell.com>
> 
> ---
> 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.
> 
> Kiran Kumar K (1):
>   kni: add IOVA=VA support in KNI module
> 
> Vamsi Attunuru (4):
>   mempool: populate mempool with page sized chunks of memory
>   add IOVA -VA support in KNI lib
>   kni: add app specific mempool create & free routine
>   kni: modify IOVA mode checks to support VA
> 
>  doc/guides/prog_guide/kernel_nic_interface.rst    |   8 ++
>  doc/guides/rel_notes/release_19_08.rst            |   6 ++
>  examples/kni/main.c                               |   6 +-
>  kernel/linux/kni/compat.h                         |   4 +
>  kernel/linux/kni/kni_dev.h                        |   4 +
>  kernel/linux/kni/kni_misc.c                       |  71 +++++++++++++--
>  kernel/linux/kni/kni_net.c                        |  59 ++++++++++---
>  lib/librte_eal/linux/eal/eal.c                    |   4 +-
>  lib/librte_eal/linux/eal/include/rte_kni_common.h |   8 ++
>  lib/librte_kni/Makefile                           |   2 +
>  lib/librte_kni/meson.build                        |   2 +
>  lib/librte_kni/rte_kni.c                          | 100 ++++++++++++++++++++--
>  lib/librte_kni/rte_kni.h                          |  49 +++++++++++
>  lib/librte_kni/rte_kni_version.map                |   2 +
>  lib/librte_mempool/rte_mempool.c                  |  59 +++++++++++++
>  lib/librte_mempool/rte_mempool.h                  |  17 ++++
>  lib/librte_mempool/rte_mempool_version.map        |   1 +
>  17 files changed, 373 insertions(+), 29 deletions(-)
> 
> --
> 2.8.4