[PATCH v3 0/2] Enable apps to use external memory as native

[Stephen Hemminger]

On Mon, 18 Sep 2023 17:32:04 +0100
Bruce Richardson <bruce.richardson at intel.com> wrote:

> Sometimes apps (or perhaps DPDK driver components) may want to allow
> use of "external" i.e. non EAL allocated, memory as though it were
> standard DPDK memory. This patchset provides the ability to do this,
> by: firstly, adding an explicit flag to indicate non-EAL memory,
> rather than relying on the socket_id implicitly, and then secondly,
> allowing heaps to be swapped, so an external heap can be used as the
> default heap for socket 0 or 1, etc.
> 
> V3:
> * Expand to 2 patch set, adding patch to tag external memory
>   explicitly, before adding the swap function
> * Add locks to improve thread safety of the swap opperation.
> * Add additional notes to function to clarify usage.
> 
> V2:
> * Fix doxygen comment issue on doc builds
> 
> Bruce Richardson (2):
>   eal: add flag to indicate non-EAL malloc heaps
>   eal: allow swapping of malloc heaps
> 
>  lib/eal/common/malloc_heap.c | 46 ++++++++++++++++++++++++++++--------
>  lib/eal/common/malloc_heap.h |  1 +
>  lib/eal/common/malloc_mp.c   |  5 ++--
>  lib/eal/common/rte_malloc.c  | 14 ++++++-----
>  lib/eal/include/rte_malloc.h | 34 ++++++++++++++++++++++++++
>  lib/eal/version.map          |  2 ++
>  6 files changed, 83 insertions(+), 19 deletions(-)
> 
> --
> 2.39.2
> 

Series-Acked-by: Stephen Hemminger <stephen at networkplumber.org>