diff options
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index a6afeedc009a..0b979e16655e 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1507,6 +1507,23 @@ static void nvme_set_queue_limits(struct nvme_ctrl *ctrl, blk_queue_write_cache(q, vwc, vwc); } +static int nvme_configure_timestamp(struct nvme_ctrl *ctrl) +{ + __le64 ts; + int ret; + + if (!(ctrl->oncs & NVME_CTRL_ONCS_TIMESTAMP)) + return 0; + + ts = cpu_to_le64(ktime_to_ms(ktime_get_real())); + ret = nvme_set_features(ctrl, NVME_FEAT_TIMESTAMP, 0, &ts, sizeof(ts), + NULL); + if (ret) + dev_warn_once(ctrl->device, + "could not set timestamp (%d)\n", ret); + return ret; +} + static int nvme_configure_apst(struct nvme_ctrl *ctrl) { /* @@ -1861,6 +1878,10 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) ret = nvme_configure_apst(ctrl); if (ret < 0) return ret; + + ret = nvme_configure_timestamp(ctrl); + if (ret < 0) + return ret; ret = nvme_configure_directives(ctrl); if (ret < 0) |