nvme: save hmpre and hmmin in struct nvme_ctrl

We'll need the later for the HMB support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 032cce3..767bcc6 100644 (file)
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1633,6 +1633,8 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
                }
        } else {
                ctrl->cntlid = le16_to_cpu(id->cntlid);
+               ctrl->hmpre = le32_to_cpu(id->hmpre);
+               ctrl->hmmin = le32_to_cpu(id->hmmin);
        }
 
        kfree(id);

diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 22ee60b..e2e341b 100644 (file)
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -166,6 +166,9 @@ struct nvme_ctrl {
        /* Power saving configuration */
        u64 ps_max_latency_us;
 
+       u32 hmpre;
+       u32 hmmin;
+
        /* Fabrics only */
        u16 sqsize;
        u32 ioccsz;