diff options
| author |   Christoph Hellwig <hch@lst.de> | 2017-06-12 18:36:32 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2017-06-15 14:30:30 +0200 |
| commit | ebe6d874cdb27d47f506a43ea95f1c0ef03aa246 (patch) | |
| tree | 36feab607e4bf183332274bf74be57f7f662302f /drivers/nvme | |
| parent | nvme: mark shutdown_timeout static (diff) | |
| download | wireguard-linux-ebe6d874cdb27d47f506a43ea95f1c0ef03aa246.tar.xz wireguard-linux-ebe6d874cdb27d47f506a43ea95f1c0ef03aa246.zip | |
nvme: move protection information check into nvme_setup_rw
It only applies to read/write commands, and this way non-PCIe drivers
get the check as well instead of having to duplicate it when adding
metadata support.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 16 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 13 |
2 files changed, 14 insertions, 15 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index c40393f6b189..b14c3ea7e6c4 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -325,12 +325,21 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req, return BLK_STS_OK; } -static inline void nvme_setup_rw(struct nvme_ns *ns, struct request *req, - struct nvme_command *cmnd) +static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns, + struct request *req, struct nvme_command *cmnd) { u16 control = 0; u32 dsmgmt = 0; + /* + * If formated with metadata, require the block layer provide a buffer + * unless this namespace is formated such that the metadata can be + * stripped/generated by the controller with PRACT=1. + */ + if (ns && ns->ms && (!ns->pi_type || ns->ms != 8) && + !blk_integrity_rq(req) && !blk_rq_is_passthrough(req)) + return BLK_STS_NOTSUPP; + if (req->cmd_flags & REQ_FUA) control |= NVME_RW_FUA; if (req->cmd_flags & (REQ_FAILFAST_DEV | REQ_RAHEAD)) @@ -364,6 +373,7 @@ static inline void nvme_setup_rw(struct nvme_ns *ns, struct request *req, cmnd->rw.control = cpu_to_le16(control); cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt); + return 0; } blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req, @@ -392,7 +402,7 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req, break; case REQ_OP_READ: case REQ_OP_WRITE: - nvme_setup_rw(ns, req, cmd); + ret = nvme_setup_rw(ns, req, cmd); break; default: WARN_ON_ONCE(1); diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 63e5a3d3f0dc..60e1088f487e 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -694,18 +694,7 @@ static blk_status_t nvme_queue_rq(struct blk_mq_hw_ctx *hctx, struct nvme_dev *dev = nvmeq->dev; struct request *req = bd->rq; struct nvme_command cmnd; - blk_status_t ret = BLK_STS_OK; - - /* - * If formated with metadata, require the block layer provide a buffer - * unless this namespace is formated such that the metadata can be - * stripped/generated by the controller with PRACT=1. - */ - if (ns && ns->ms && !blk_integrity_rq(req)) { - if (!(ns->pi_type && ns->ms == 8) && - !blk_rq_is_passthrough(req)) - return BLK_STS_NOTSUPP; - } + blk_status_t ret; ret = nvme_setup_cmd(ns, req, &cmnd); if (ret) |