selftests: rds: report missing RDMA prereqs as XFAIL

Make the RDMA test return XFAIL rather than skip when RXE is not
available, since the RDMA datapath is not run in netdev CI.

Change the three RD

selftests: rds: report missing RDMA prereqs as XFAIL

Make the RDMA test return XFAIL rather than skip when RXE is not
available, since the RDMA datapath is not run in netdev CI.

Change the three RDMA-prerequisite checks in check_rdma_conf() and
check_rdma_conf_enabled() to exit with KSFT_XFAIL (2) and tag their
messages [XFAIL] instead of [SKIP].

Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-5-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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selftests: rds: support RDS built as loadable modules

Commit 92cc6708f4a2 ("selftests: rds: config: disable modules") set
CONFIG_MODULES=n since run.sh required this kconfig. But disabling
modules a

selftests: rds: support RDS built as loadable modules

Commit 92cc6708f4a2 ("selftests: rds: config: disable modules") set
CONFIG_MODULES=n since run.sh required this kconfig. But disabling
modules also forces every =m option to =n rather than =y, which can
silently drop unrelated features.

This patch removes CONFIG_MODULES=n from the rds selftest config and
updates the check_*conf_enabled() routines to accept a config as
either built-in (=y) or modular (=m). A new probe_module() function
is added to load the backing module when a component is set to be
modular (=m). config.sh no longer forces CONFIG_MODULES=n, so a user
who follows the SKIP message to run config.sh does not silently end
up with modules disabled again.

rds.ko itself is auto-loaded on socket creation, and rds_rdma.ko is
auto-loaded when SO_RDS_TRANSPORT is set with RDS_TRANS_IB, but the
TCP transport (rds_tcp.ko) is not auto-loaded on the bind path, so
the backing modules are loaded explicitly here.

Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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selftests: rds: Rename run.sh to rds_run.sh

This patch renames run.sh to rds_run.sh. This gives the test a
self-describing name that appears in the netdev CI dashboard.

Suggested-by: Matthieu Baert

selftests: rds: Rename run.sh to rds_run.sh

This patch renames run.sh to rds_run.sh. This gives the test a
self-describing name that appears in the netdev CI dashboard.

Suggested-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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