Given that libnvdimm driver stack takes specific actions on DIMM command
error codes like -EACCES, provide a facility to inject custom failures.
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
---
tools/testing/nvdimm/test/nfit.c | 38 +++++++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index cb166be4918d..dc6cf5630280 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -138,6 +138,7 @@ static u32 handle[] = {
};
static unsigned long dimm_fail_cmd_flags[NUM_DCR];
+static int dimm_fail_cmd_code[NUM_DCR];
struct nfit_test_fw {
enum intel_fw_update_state state;
@@ -892,8 +893,11 @@ static int get_dimm(struct nfit_mem *nfit_mem, unsigned
int func)
if (i >= ARRAY_SIZE(handle))
return -ENXIO;
- if ((1 << func) & dimm_fail_cmd_flags[i])
+ if ((1 << func) & dimm_fail_cmd_flags[i]) {
+ if (dimm_fail_cmd_code[i])
+ return dimm_fail_cmd_code[i];
return -EIO;
+ }
return i;
}
@@ -1225,8 +1229,40 @@ static ssize_t fail_cmd_store(struct device *dev, struct
device_attribute *attr,
}
static DEVICE_ATTR_RW(fail_cmd);
+static ssize_t fail_cmd_code_show(struct device *dev, struct device_attribute
*attr,
+ char *buf)
+{
+ int dimm = dimm_name_to_id(dev);
+
+ if (dimm < 0)
+ return dimm;
+
+ return sprintf(buf, "%d\n", dimm_fail_cmd_code[dimm]);
+}
+
+static ssize_t fail_cmd_code_store(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t size)
+{
+ int dimm = dimm_name_to_id(dev);
+ unsigned long val;
+ ssize_t rc;
+
+ if (dimm < 0)
+ return dimm;
+
+ rc = kstrtol(buf, 0, &val);
+ if (rc)
+ return rc;
+
+ dimm_fail_cmd_code[dimm] = val;
+ return size;
+}
+static DEVICE_ATTR_RW(fail_cmd_code);
+
+
static struct attribute *nfit_test_dimm_attributes[] = {
&dev_attr_fail_cmd.attr,
+ &dev_attr_fail_cmd_code.attr,
&dev_attr_handle.attr,
NULL,
};
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
