From mboxrd@z Thu Jan 1 00:00:00 1970 From: omri@excelero.com (Omri Mann) Date: Mon, 28 Aug 2017 15:07:37 +0300 Subject: [PATCH] nvmet: Add support for HOST_ID feature. Message-ID: <1503922057-1141-1-git-send-email-omri@excelero.com> Add host_id feature to NVMeoF targets. This will be required in order to support reservations. Signed-off-by: Omri Mann --- drivers/nvme/target/admin-cmd.c | 7 +++++++ drivers/nvme/target/nvmet.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index a53bb66..071de0b 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -461,6 +461,10 @@ static void nvmet_execute_set_features(struct nvmet_req *req) req->sq->ctrl->kato = DIV_ROUND_UP(val32, 1000); nvmet_set_result(req, req->sq->ctrl->kato); break; + case NVME_FEAT_HOST_ID: + status = nvmet_copy_from_sgl(req, 0, &req->sq->ctrl->host_id, + 8); + break; default: status = NVME_SC_INVALID_FIELD | NVME_SC_DNR; break; @@ -509,6 +513,9 @@ static void nvmet_execute_get_features(struct nvmet_req *req) case NVME_FEAT_KATO: nvmet_set_result(req, req->sq->ctrl->kato * 1000); break; + case NVME_FEAT_HOST_ID: + status = nvmet_copy_to_sgl(req, 0, &req->sq->ctrl->host_id, 8); + break; default: status = NVME_SC_INVALID_FIELD | NVME_SC_DNR; break; diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index e3b244c..841f35d 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -132,6 +132,7 @@ struct nvmet_ctrl { char subsysnqn[NVMF_NQN_FIELD_LEN]; char hostnqn[NVMF_NQN_FIELD_LEN]; + u64 host_id; }; struct nvmet_subsys { -- 1.8.3.1