From 679eb25de4ee537f209c6d81f7808ad65b03bbbc Mon Sep 17 00:00:00 2001 From: Dean Luick Date: Wed, 11 Mar 2026 13:28:03 -0400 Subject: [PATCH] RDMA/rdmavt: Add ucontext alloc/dealloc passthrough Add a private data pointer to the ucontext structure and add per-client pass-throughs. Signed-off-by: Dean Luick Signed-off-by: Dennis Dalessandro Link: https://patch.msgid.link/177325008318.52243.7367786996925601681.stgit@awdrv-04.cornelisnetworks.com Signed-off-by: Leon Romanovsky --- drivers/infiniband/sw/rdmavt/vt.c | 8 ++++++++ include/rdma/rdma_vt.h | 7 +++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c index 0c28b412d81a4..033d8932aff16 100644 --- a/drivers/infiniband/sw/rdmavt/vt.c +++ b/drivers/infiniband/sw/rdmavt/vt.c @@ -244,6 +244,10 @@ static int rvt_query_gid(struct ib_device *ibdev, u32 port_num, */ static int rvt_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) { + struct rvt_dev_info *rdi = ib_to_rvt(uctx->device); + + if (rdi->driver_f.alloc_ucontext) + return rdi->driver_f.alloc_ucontext(uctx, udata); return 0; } @@ -253,6 +257,10 @@ static int rvt_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) */ static void rvt_dealloc_ucontext(struct ib_ucontext *context) { + struct rvt_dev_info *rdi = ib_to_rvt(context->device); + + if (rdi->driver_f.dealloc_ucontext) + rdi->driver_f.dealloc_ucontext(context); return; } diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index c429d6ddb1292..8671c6da16bb2 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -149,6 +149,7 @@ struct rvt_driver_params { /* User context */ struct rvt_ucontext { struct ib_ucontext ibucontext; + void *priv; }; /* Protection domain */ @@ -359,6 +360,12 @@ struct rvt_driver_provided { /* Get and return CPU to pin CQ processing thread */ int (*comp_vect_cpu_lookup)(struct rvt_dev_info *rdi, int comp_vect); + + /* allocate a ucontext */ + int (*alloc_ucontext)(struct ib_ucontext *uctx, struct ib_udata *udata); + + /* deallocate a ucontext */ + void (*dealloc_ucontext)(struct ib_ucontext *context); }; struct rvt_dev_info { -- 2.47.3