diff options
| author | Tom Yan <tom.ty89@gmail.com> | 2022-04-29 12:52:43 +0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-05-16 08:06:54 +0200 |
| commit | 1a86924e4f464757546d7f7bdc469be237918395 (patch) | |
| tree | 25671ba61746627d769a990b2b606f84346a815f | |
| parent | c23d47abee3a54e4991ed3993340596d04aabd6a (diff) | |
nvme: fix interpretation of DMRSL
DMRSLl is in the unit of logical blocks, while max_discard_sectors is
in the unit of "linux sector".
Signed-off-by: Tom Yan <tom.ty89@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/nvme/host/core.c | 6 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 76a9ccd5d064..f41b2b18fad9 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1634,6 +1634,9 @@ static void nvme_config_discard(struct gendisk *disk, struct nvme_ns *ns) if (queue->limits.max_discard_sectors) return; + if (ctrl->dmrsl && ctrl->dmrsl <= nvme_sect_to_lba(ns, UINT_MAX)) + ctrl->max_discard_sectors = nvme_lba_to_sect(ns, ctrl->dmrsl); + blk_queue_max_discard_sectors(queue, ctrl->max_discard_sectors); blk_queue_max_discard_segments(queue, ctrl->max_discard_segments); @@ -2893,8 +2896,7 @@ static int nvme_init_non_mdts_limits(struct nvme_ctrl *ctrl) if (id->dmrl) ctrl->max_discard_segments = id->dmrl; - if (id->dmrsl) - ctrl->max_discard_sectors = le32_to_cpu(id->dmrsl); + ctrl->dmrsl = le32_to_cpu(id->dmrsl); if (id->wzsl) ctrl->max_zeroes_sectors = nvme_mps_to_sectors(ctrl, id->wzsl); diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index a2b53ca63335..81c4f5379c0c 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -284,6 +284,7 @@ struct nvme_ctrl { #endif u16 crdt[3]; u16 oncs; + u32 dmrsl; u16 oacs; u16 sqsize; u32 max_namespaces; |