Stanislaw Kardach 1abb185d6c stack: allow lock-free only on relevant architectures ... Since commit 7911ba0473 ("stack: enable lock-free implementation for aarch64"), lock-free stack is supported on arm64 but this description was missing from the doxygen for the flag. Currently it is impossible to detect programmatically whether lock-free implementation of rte_stack is supported. One could check whether the header guard for lock-free stubs is defined (_RTE_STACK_LF_STUBS_H_) but that's an unstable implementation detail. Because of that currently all lock-free ring creations silently succeed (as long as the stack header is 16B long) which later leads to push and pop operations being NOPs. The observable effect is that stack_lf_autotest fails on platforms not supporting the lock-free. Instead it should just skip the lock-free test altogether. This commit adds a new errno value (ENOTSUP) that may be returned by rte_stack_create() to indicate that a given combination of flags is not supported on a current platform. This is detected by checking a compile-time flag in the include logic in rte_stack_lf.h which may be used by applications to check the lock-free support at compile time. Use the added RTE_STACK_LF_SUPPORTED flag to disable the lock-free stack tests at the compile time. Perf test doesn't fail because rte_ring_create() succeeds, however marking this test as skipped gives a better indication of what actually was tested. Fixes: 7911ba0473 ("stack: enable lock-free implementation for aarch64") Signed-off-by: Stanislaw Kardach <kda@semihalf.com> Acked-by: Olivier Matz <olivier.matz@6wind.com>		2021-05-03 18:46:15 +02:00
..
meson.build
rte_stack_lf_c11.h
rte_stack_lf_generic.h
rte_stack_lf_stubs.h
rte_stack_lf.c
rte_stack_lf.h	stack: allow lock-free only on relevant architectures	2021-05-03 18:46:15 +02:00
rte_stack_std.c
rte_stack_std.h
rte_stack.c	stack: allow lock-free only on relevant architectures	2021-05-03 18:46:15 +02:00
rte_stack.h	stack: allow lock-free only on relevant architectures	2021-05-03 18:46:15 +02:00
stack_pvt.h
version.map