[PATCH rdma-next 12/13] RDMA/rxe: Implement disassociate_ucontext callback
From: Jiri Pirko <jiri@resnulli.us>
Date: 2026-07-09 09:56:16
Also in:
cgroups, linux-kselftest, linux-rdma, linux-s390
Subsystem:
infiniband subsystem, soft-roce driver (rxe), the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Zhu Yanjun, Linus Torvalds
From: Jiri Pirko <redacted> Implement an empty disassociate_ucontext() callback so the RDMA core can move rxe devices between net namespaces. The core requires this callback to reset user contexts without waiting for userspace. rxe needs no teardown here: its user-mapped queues live in reference-counted vmalloc memory (see rxe_mmap.c) that stays valid while userspace holds the mappings. Signed-off-by: Jiri Pirko <redacted> --- drivers/infiniband/sw/rxe/rxe_verbs.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 1ec130fee8ea..6eb10d2f0653 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c@@ -240,6 +240,10 @@ static void rxe_dealloc_ucontext(struct ib_ucontext *ibuc) rxe_err_uc(uc, "cleanup failed, err = %d\n", err); } +static void rxe_disassociate_ucontext(struct ib_ucontext *ibuc) +{ +} + /* pd */ static int rxe_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) {
@@ -1478,6 +1482,7 @@ static const struct ib_device_ops rxe_dev_ops = { .destroy_srq = rxe_destroy_srq, .detach_mcast = rxe_detach_mcast, .device_group = &rxe_attr_group, + .disassociate_ucontext = rxe_disassociate_ucontext, .enable_driver = rxe_enable_driver, .get_dma_mr = rxe_get_dma_mr, .get_hw_stats = rxe_ib_get_hw_stats,
--
2.54.0