AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 21:40:54 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

nvmet: fix PSDT field check in command format

Browse Source 
PSDT field section according to NVM_Express-1.3:
"This field specifies whether PRPs or SGLs are used for any data
transfer associated with the command. PRPs shall be used for all
Admin commands for NVMe over PCIe. SGLs shall be used for all Admin
and I/O commands for NVMe over Fabrics. This field shall be set to
01b for NVMe over Fabrics 1.0 implementations.

Suggested-by: Idan Burstein <idanb@mellanox.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
This commit is contained in:
Max Gurtovoy 2018-01-24 17:31:45 +02:00 committed by Keith Busch
parent 9bd82b1a44
commit bffd2b6167
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/nvme/target/core.c
View File

@ -520,9 +520,12 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
goto fail;
}
/* either variant of SGLs is fine, as we don't support metadata */
if (unlikely((flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METABUF &&
(flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METASEG)) {
/*
* For fabrics, PSDT field shall describe metadata pointer (MPTR) that
* contains an address of a single contiguous physical buffer that is
* byte aligned.
*/
if (unlikely((flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METABUF)) {
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
goto fail;
}