ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nvme: re-enable the separate metadata support in nvme driver

Browse Source 
Commit ID "269910c0" removed the support of separate metadata,
for those controllers which can support this feature, SPDK driver
can't be used. SPDK provides APIs such as:
spdk_nvme_ctrlr_cmd_io_raw_with_md/spdk_nvme_ns_cmd_write_with_md/
spdk_nvme_ns_cmd_read_with_md, which can support separate metadata.
While here, re-enable this feature with this commit.

Change-Id: If77c21e9ac700c4b334548ebfa7e8e6286285a64
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/392440
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Changpeng Liu 2017-12-19 23:16:30 -05:00 committed by Jim Harris
parent 710d59a533
commit 381af5775f
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
lib/nvme/nvme_pcie.c
View File

@ -1836,6 +1836,7 @@ nvme_pcie_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_reques
{
struct nvme_tracker *tr;
int rc = 0;
void *md_payload;
struct spdk_nvme_ctrlr *ctrlr = qpair->ctrlr;
struct nvme_pcie_qpair *pqpair = nvme_pcie_qpair(qpair);
@ -1866,6 +1867,16 @@ nvme_pcie_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_reques
tr->req = req;
req->cmd.cid = tr->cid;
if (req->payload_size && req->payload.md) {
md_payload = req->payload.md + req->md_offset;
tr->req->cmd.mptr = spdk_vtophys(md_payload);
if (tr->req->cmd.mptr == SPDK_VTOPHYS_ERROR) {
nvme_pcie_fail_request_bad_vtophys(qpair, tr);
rc = -EINVAL;
goto exit;
}
}
if (req->payload_size == 0) {
/* Null payload - leave PRP fields zeroed */
rc = 0;