numam-dpdk/doc
Anatoly Burakov 5282bb1c36 mem: allow memseg lists to be marked as external
When we allocate and use DPDK memory, we need to be able to
differentiate between DPDK hugepage segments and segments that
were made part of DPDK but are externally allocated. Add such
a property to memseg lists.

This breaks the ABI, so document the change in release notes.
This also breaks a few internal assumptions about memory
contiguousness, so adjust malloc code in a few places.

All current calls for memseg walk functions were adjusted to
ignore external segments where it made sense.

Mempools is a special case, because we may be asked to allocate
a mempool on a specific socket, and we need to ignore all page
sizes on other heaps or other sockets. Previously, this
assumption of knowing all page sizes was not a problem, but it
will be now, so we have to match socket ID with page size when
calculating minimum page size for a mempool.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
2018-10-11 10:24:29 +02:00
..
api eventdev: add eth Tx adapter APIs 2018-10-01 16:49:41 +02:00
guides mem: allow memseg lists to be marked as external 2018-10-11 10:24:29 +02:00
logo doc: change theme of guides 2015-12-13 22:30:47 +01:00
build-sdk-meson.txt build: generate API documentation with meson 2018-09-18 15:50:54 +02:00
build-sdk-quick.txt doc: add tags and cscope make targets to quick help 2017-08-05 11:04:47 +02:00
meson.build build: generate API documentation with meson 2018-09-18 15:50:54 +02:00