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-rw-r--r--drivers/nvme/target/admin-cmd.c8
-rw-r--r--drivers/nvme/target/nvmet.h1
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index c0aa9c34c699..b9ec489dc748 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -369,8 +369,12 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req)
/* we support multiple ports, multiples hosts and ANA: */
id->cmic = (1 << 0) | (1 << 1) | (1 << 3);
- /* no limit on data transfer sizes for now */
- id->mdts = 0;
+ /* Limit MDTS according to transport capability */
+ if (ctrl->ops->get_mdts)
+ id->mdts = ctrl->ops->get_mdts(ctrl);
+ else
+ id->mdts = 0;
+
id->cntlid = cpu_to_le16(ctrl->cntlid);
id->ver = cpu_to_le32(ctrl->subsys->ver);
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 42ba2ddd9e96..421dff3ea143 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -289,6 +289,7 @@ struct nvmet_fabrics_ops {
struct nvmet_port *port, char *traddr);
u16 (*install_queue)(struct nvmet_sq *nvme_sq);
void (*discovery_chg)(struct nvmet_port *port);
+ u8 (*get_mdts)(const struct nvmet_ctrl *ctrl);
};
#define NVMET_MAX_INLINE_BIOVEC 8