Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
librdmacm
librdmacm(x86-64)
librdmacm.so.1()(64bit)
librdmacm.so.1(RDMACM_1.0)(64bit)
librdmacm.so.1(RDMACM_1.1)(64bit)
librdmacm.so.1(RDMACM_1.2)(64bit)
librdmacm.so.1(RDMACM_1.3)(64bit)
librspreload.so()(64bit)

Requires :

ld-linux-x86-64.so.2()(64bit)
ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.15)(64bit)
libc.so.6(GLIBC_2.17)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.25)(64bit)
libc.so.6(GLIBC_2.3.2)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_2.7)(64bit)
libc.so.6(GLIBC_2.8)(64bit)
libc.so.6(GLIBC_2.9)(64bit)
libdl.so.2()(64bit)
libdl.so.2(GLIBC_2.2.5)(64bit)
libibverbs(x86-64) = 48.0-1.el8
libibverbs.so.1()(64bit)
libibverbs.so.1(IBVERBS_1.0)(64bit)
libibverbs.so.1(IBVERBS_1.1)(64bit)
libibverbs.so.1(IBVERBS_1.10)(64bit)
libibverbs.so.1(IBVERBS_1.5)(64bit)
libibverbs.so.1(IBVERBS_1.9)(64bit)
libnl-3.so.200()(64bit)
libnl-3.so.200(libnl_3)(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0(GLIBC_2.3.2)(64bit)
librdmacm.so.1()(64bit)
librdmacm.so.1(RDMACM_1.0)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1
rtld(GNU_HASH)

Content of RPM :
/usr/lib/.build-id
/usr/lib/.build-id/34
/usr/lib/.build-id/34/42a73bf53eaf42673eb8db6570cbf157cbd3e6
/usr/lib/.build-id/65
/usr/lib/.build-id/65/a52a103daf4045b1d8e7c13a06cc69b16b0f17
/usr/lib64/librdmacm.so.1
/usr/lib64/librdmacm.so.1.3.48.0
/usr/lib64/rsocket
/usr/lib64/rsocket/librspreload.so
/usr/lib64/rsocket/librspreload.so.1
/usr/lib64/rsocket/librspreload.so.1.0.0
/usr/share/doc/rdma-core/librdmacm.md
/usr/share/man/man7/rsocket.7.gz