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ndtest: Add nvdimm control functions

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Add functions to support ND_CMD_GET_CONFIG_SIZE, ND_CMD_SET_CONFIG_DATA and
ND_CMD_GET_CONFIG_DATA.

Signed-off-by: Santosh Sivaraj <santosh@fossix.org>
Link: https://lore.kernel.org/r/20201222042240.2983755-7-santosh@fossix.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Santosh Sivaraj 2020-12-22 09:52:39 +05:30 committed by Dan Williams
parent 6fde2d4c8b
commit 14ccef10e5
1 changed files with 51 additions and 0 deletions
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51
tools/testing/nvdimm/test/ndtest.c
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@ -254,6 +254,45 @@ static inline struct ndtest_priv *to_ndtest_priv(struct device *dev)
return container_of(pdev, struct ndtest_priv, pdev);
}
static int ndtest_config_get(struct ndtest_dimm *p, unsigned int buf_len,
struct nd_cmd_get_config_data_hdr *hdr)
{
unsigned int len;
if ((hdr->in_offset + hdr->in_length) > LABEL_SIZE)
return -EINVAL;
hdr->status = 0;
len = min(hdr->in_length, LABEL_SIZE - hdr->in_offset);
memcpy(hdr->out_buf, p->label_area + hdr->in_offset, len);
return buf_len - len;
}
static int ndtest_config_set(struct ndtest_dimm *p, unsigned int buf_len,
struct nd_cmd_set_config_hdr *hdr)
{
unsigned int len;
if ((hdr->in_offset + hdr->in_length) > LABEL_SIZE)
return -EINVAL;
len = min(hdr->in_length, LABEL_SIZE - hdr->in_offset);
memcpy(p->label_area + hdr->in_offset, hdr->in_buf, len);
return buf_len - len;
}
static int ndtest_get_config_size(struct ndtest_dimm *dimm, unsigned int buf_len,
struct nd_cmd_get_config_size *size)
{
size->status = 0;
size->max_xfer = 8;
size->config_size = dimm->config_size;
return 0;
}
static int ndtest_ctl(struct nvdimm_bus_descriptor *nd_desc,
struct nvdimm *nvdimm, unsigned int cmd, void *buf,
unsigned int buf_len, int *cmd_rc)
@ -275,12 +314,24 @@ static int ndtest_ctl(struct nvdimm_bus_descriptor *nd_desc,
switch (cmd) {
case ND_CMD_GET_CONFIG_SIZE:
*cmd_rc = ndtest_get_config_size(dimm, buf_len, buf);
break;
case ND_CMD_GET_CONFIG_DATA:
*cmd_rc = ndtest_config_get(dimm, buf_len, buf);
break;
case ND_CMD_SET_CONFIG_DATA:
*cmd_rc = ndtest_config_set(dimm, buf_len, buf);
break;
default:
return -EINVAL;
}
/* Failures for a DIMM can be injected using fail_cmd and
* fail_cmd_code, see the device attributes below
*/
if ((1 << cmd) & dimm->fail_cmd)
return dimm->fail_cmd_code ? dimm->fail_cmd_code : -EIO;
return 0;
}