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nvmet: add passthru ZNS support

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In the default passthru implementation NVMeOF target passthru ctrl is
not capable of handling Zoned Namespaces (ZNS).

Update the nvmet_parse_pasthru_admin_cmd() to allow
NVME_ID_CNS_CS_CTRL/NVME_CIS_ZNS and NVME_ID_CNS_CS_NS/NVME_CIS_ZNS.

With this addition NVMeOF Passthru allows Zoned Namespaces.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Chaitanya Kulkarni 2020-09-22 14:17:18 -07:00 committed by Christoph Hellwig
parent 4e683c48db
commit 5b3356d9da
1 changed files with 16 additions and 0 deletions
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16
drivers/nvme/target/passthru.c
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@ -456,10 +456,26 @@ u16 nvmet_parse_passthru_admin_cmd(struct nvmet_req *req)
req->execute = nvmet_passthru_execute_cmd;
req->p.use_workqueue = true;
return NVME_SC_SUCCESS;
case NVME_ID_CNS_CS_CTRL:
switch (req->cmd->identify.csi) {
case NVME_CSI_ZNS:
req->execute = nvmet_passthru_execute_cmd;
req->p.use_workqueue = true;
return NVME_SC_SUCCESS;
}
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
case NVME_ID_CNS_NS:
req->execute = nvmet_passthru_execute_cmd;
req->p.use_workqueue = true;
return NVME_SC_SUCCESS;
case NVME_ID_CNS_CS_NS:
switch (req->cmd->identify.csi) {
case NVME_CSI_ZNS:
req->execute = nvmet_passthru_execute_cmd;
req->p.use_workqueue = true;
return NVME_SC_SUCCESS;
}
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
default:
return nvmet_setup_passthru_command(req);
}