2023-04-10 12:08:57

by Kal Cutter Conley

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Subject: [PATCH bpf-next v5 3/4] selftests: xsk: Use hugepages when umem->frame_size > PAGE_SIZE

HugeTLB UMEMs now support chunk_size > PAGE_SIZE. Set MAP_HUGETLB when
frame_size > PAGE_SIZE for future tests.

Signed-off-by: Kal Conley <[email protected]>
---
tools/testing/selftests/bpf/xskxceiver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index 5a9691e942de..7eccf57a0ccc 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -1289,7 +1289,7 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
void *bufs;
int ret;

- if (ifobject->umem->unaligned_mode)
+ if (ifobject->umem->frame_size > sysconf(_SC_PAGESIZE) || ifobject->umem->unaligned_mode)
mmap_flags |= MAP_HUGETLB;

if (ifobject->shared_umem)
--
2.39.2