This is the user space counter-part of the kernel patch set to add dma-buf support to the RXE driver. Implement a new provider method for dma-buf base memory registration. Pull request at GitHub: https://github.com/linux-rdma/rdma-core/pull/1055 Signed-off-by: Shunsuke Mie <mie@xxxxxxxxxx> --- providers/rxe/rxe.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/providers/rxe/rxe.c b/providers/rxe/rxe.c index 3c3ea8bb..0e6b1ecd 100644 --- a/providers/rxe/rxe.c +++ b/providers/rxe/rxe.c @@ -239,6 +239,25 @@ static struct ibv_mr *rxe_reg_mr(struct ibv_pd *pd, void *addr, size_t length, return &vmr->ibv_mr; } +static struct ibv_mr* rxe_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset, size_t length, + uint64_t iova, int fd, int access) +{ + struct verbs_mr *vmr; + int ret; + + vmr = malloc(sizeof (*vmr)); + if (!vmr) + return NULL; + + ret = ibv_cmd_reg_dmabuf_mr(pd, offset, length, iova, fd, access, vmr); + if (ret) { + free(vmr); + return NULL; + } + + return &vmr->ibv_mr; +} + static int rxe_dereg_mr(struct verbs_mr *vmr) { int ret; @@ -1706,6 +1725,7 @@ static const struct verbs_context_ops rxe_ctx_ops = { .alloc_pd = rxe_alloc_pd, .dealloc_pd = rxe_dealloc_pd, .reg_mr = rxe_reg_mr, + .reg_dmabuf_mr = rxe_reg_dmabuf_mr, .dereg_mr = rxe_dereg_mr, .alloc_mw = rxe_alloc_mw, .dealloc_mw = rxe_dealloc_mw, -- 2.17.1
