UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

nvme-pci: use ctrl sgl check helper 

Use the helper to check NVMe controller's SGL support.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Chaitanya Kulkarni 2021-06-09 18:28:25 -07:00 committed by Christoph Hellwig
parent b61678bcd4
commit 253a0b76a1
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/nvme/host/pci.c
View File

@ -536,7 +536,7 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req), nseg);
if (!(dev->ctrl.sgls & ((1 << 0) | (1 << 1))))
if (!nvme_ctrl_sgl_supported(&dev->ctrl))
return false;
if (!iod->nvmeq->qid)
return false;
@ -853,7 +853,7 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
&cmnd->rw, &bv);
if (iod->nvmeq->qid && sgl_threshold &&
dev->ctrl.sgls & ((1 << 0) | (1 << 1)))
nvme_ctrl_sgl_supported(&dev->ctrl))
return nvme_setup_sgl_simple(dev, req,
&cmnd->rw, &bv);
}