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nvme: Convert NVMe errors to PR errors

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This converts the NVMe errors we commonly see during PR handling to PR_STS
errors or -Exyz errors. pr_ops callers can then handle SCSI and NVMe errors
without knowing the device types.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20221122032603.32766-5-michael.christie@oracle.com
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Mike Christie 2022-11-21 21:26:03 -06:00 • committed by Martin K. Petersen
parent 04b3c8c002
commit 7fb42780d0
1 changed files with 31 additions and 2 deletions
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33
drivers/nvme/host/core.c
View file

@ -2104,11 +2104,34 @@ static int nvme_send_ns_pr_command(struct nvme_ns *ns, struct nvme_command *c,
return nvme_submit_sync_cmd(ns->queue, c, data, 16);
}
static int nvme_sc_to_pr_err(int nvme_sc)
{
if (nvme_is_path_error(nvme_sc))
return PR_STS_PATH_FAILED;
switch (nvme_sc) {
case NVME_SC_SUCCESS:
return PR_STS_SUCCESS;
case NVME_SC_RESERVATION_CONFLICT:
return PR_STS_RESERVATION_CONFLICT;
case NVME_SC_ONCS_NOT_SUPPORTED:
return -EOPNOTSUPP;
case NVME_SC_BAD_ATTRIBUTES:
case NVME_SC_INVALID_OPCODE:
case NVME_SC_INVALID_FIELD:
case NVME_SC_INVALID_NS:
return -EINVAL;
default:
return PR_STS_IOERR;
}
}
static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
u64 key, u64 sa_key, u8 op)
{
struct nvme_command c = { };
u8 data[16] = { 0, };
int ret;
put_unaligned_le64(key, &data[0]);
put_unaligned_le64(sa_key, &data[8]);
@ -2118,8 +2141,14 @@ static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
if (IS_ENABLED(CONFIG_NVME_MULTIPATH) &&
bdev->bd_disk->fops == &nvme_ns_head_ops)
return nvme_send_ns_head_pr_command(bdev, &c, data);
return nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c, data);
ret = nvme_send_ns_head_pr_command(bdev, &c, data);
else
ret = nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c,
data);
if (ret < 0)
return ret;
return nvme_sc_to_pr_err(ret);
}
static int nvme_pr_register(struct block_device *bdev, u64 old,