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authorSantosh Sivaraj <santosh@fossix.org>2020-12-22 09:52:39 +0530
committerDan Williams <dan.j.williams@intel.com>2021-01-28 00:22:49 -0800
commit14ccef10e53e4c303570d2ee2d49e45be1118e99 (patch)
tree4ee9ff438a5fe720db09786bd886e55a353f5947 /tools/testing/nvdimm
parent6fde2d4c8b25cec9589a4a58fd524b9d4e40c4b6 (diff)
ndtest: Add nvdimm control functions
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>
Diffstat (limited to 'tools/testing/nvdimm')
-rw-r--r--tools/testing/nvdimm/test/ndtest.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/tools/testing/nvdimm/test/ndtest.c b/tools/testing/nvdimm/test/ndtest.c
index 821296b59bdc..dc1e3636616a 100644
--- a/tools/testing/nvdimm/test/ndtest.c
+++ b/tools/testing/nvdimm/test/ndtest.c
@@ -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;
}