From: Ruozhu Li <liruozhu@huawei.com> driver inclusion category: bugfix bugzilla: NA CVE: NA Link: https://gitee.com/openeuler/kernel/issues/I1WGZE ------------------------------------------------- add module parameter "enable_inline_data" to nvme_rdma module.So we can turn off inline data feature when use rdma transport dynamically. Signed-off-by: Ruozhu Li <liruozhu@huawei.com> Reviewed-by: Chao Leng <lengchao@huawei.com> Reviewed-by: Jike Cheng <chengjike.cheng@huawei.com> Signed-off-by: Lijie <lijie34@huawei.com> Acked-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/nvme/host/rdma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 6ed0083f4629..912b15d04f1c 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -141,6 +141,10 @@ static bool register_always = true; module_param(register_always, bool, 0444); MODULE_PARM_DESC(register_always, "Use memory registration even for contiguous memory regions"); +static bool enable_inline_data = true; +module_param(enable_inline_data, bool, 0644); +MODULE_PARM_DESC(enable_inline_data, + "global switch for inline data when use rdma transport"); static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id, struct rdma_cm_event *event); @@ -1256,7 +1260,7 @@ static int nvme_rdma_map_data(struct nvme_rdma_queue *queue, if (count <= dev->num_inline_segments) { if (rq_data_dir(rq) == WRITE && nvme_rdma_queue_idx(queue) && - queue->ctrl->use_inline_data && + queue->ctrl->use_inline_data && enable_inline_data && blk_rq_payload_bytes(rq) <= nvme_rdma_inline_data_size(queue)) { ret = nvme_rdma_map_sg_inline(queue, req, c, count); -- 2.25.1