build: add meson option of "max_memseg_lists" and "mbuf_refcnt_atomic"
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Commit Message
RTE_MAX_MEMSEG_LISTS = 128 is not enough for some use cases, so add an
option so user can override it.
RTE_MBUF_REFCNT_ATOMIC = 0 is enough for applications like Seastar,
where it's safe to assume that the mbuf refcnt is only updated by a single
core only.
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
---
config/meson.build | 5 ++++-
config/rte_config.h | 2 --
meson_options.txt | 5 +++++
3 files changed, 9 insertions(+), 3 deletions(-)
@@ -301,7 +301,10 @@ if dpdk_conf.get('RTE_ARCH_64')
else # for 32-bit we need smaller reserved memory areas
dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
endif
-
+dpdk_conf.set('RTE_MAX_MEMSEG_LISTS', get_option('max_memseg_lists'))
+if get_option('mbuf_refcnt_atomic')
+ dpdk_conf.set('RTE_MBUF_REFCNT_ATOMIC', true)
+endif
compile_time_cpuflags = []
subdir(arch_subdir)
@@ -29,7 +29,6 @@
/* EAL defines */
#define RTE_MAX_HEAPS 32
-#define RTE_MAX_MEMSEG_LISTS 128
#define RTE_MAX_MEMSEG_PER_LIST 8192
#define RTE_MAX_MEM_MB_PER_LIST 32768
#define RTE_MAX_MEMSEG_PER_TYPE 32768
@@ -50,7 +49,6 @@
/* mbuf defines */
#define RTE_MBUF_DEFAULT_MEMPOOL_OPS "ring_mp_mc"
-#define RTE_MBUF_REFCNT_ATOMIC 1
#define RTE_PKTMBUF_HEADROOM 128
/* ether defines */
@@ -38,6 +38,11 @@ option('max_lcores', type: 'integer', value: 128, description:
'maximum number of cores/threads supported by EAL')
option('max_numa_nodes', type: 'integer', value: 32, description:
'maximum number of NUMA nodes supported by EAL')
+option('max_memseg_lists', type: 'integer', value: 128, description:
+ 'maximum number of dynamic arrays holding memsegs')
+option('mbuf_refcnt_atomic', type: 'boolean', value: true, description:
+ 'atomically access the mbuf refcnt')
+
option('platform', type: 'string', value: 'native', description:
'Platform to build, either "native", "generic" or a SoC. Please refer to the Linux build guide for more information.')
option('enable_trace_fp', type: 'boolean', value: false, description: