@@ -48,6 +48,10 @@ static struct cxl_cel_entry mock_cel[] = {
.opcode = cpu_to_le16(CXL_MBOX_OP_GET_SUPPORTED_FEATURES),
.effect = CXL_CMD_EFFECT_NONE,
},
+ {
+ .opcode = cpu_to_le16(CXL_MBOX_OP_GET_FEATURE),
+ .effect = CXL_CMD_EFFECT_NONE,
+ },
{
.opcode = cpu_to_le16(CXL_MBOX_OP_IDENTIFY),
.effect = CXL_CMD_EFFECT_NONE,
@@ -149,6 +153,10 @@ struct mock_event_store {
u32 ev_status;
};
+struct vendor_test_feat {
+ __le32 data;
+} __packed;
+
struct cxl_mockmem_data {
void *lsa;
void *fw;
@@ -165,6 +173,7 @@ struct cxl_mockmem_data {
u8 event_buf[SZ_4K];
u64 timestamp;
unsigned long sanitize_timeout;
+ struct vendor_test_feat test_feat;
};
static struct mock_event_log *event_find_log(struct device *dev, int log_type)
@@ -1357,6 +1366,51 @@ static void fill_feature_vendor_test(struct cxl_feat_entry *feat)
feat->effects = cpu_to_le16(BIT(0) | BIT(9));
}
+struct get_feat_input {
+ uuid_t uuid;
+ __le16 offset;
+ __le16 count;
+ u8 selection;
+} __packed;
+
+static int mock_get_test_feature(struct cxl_mockmem_data *mdata,
+ struct cxl_mbox_cmd *cmd)
+{
+ struct vendor_test_feat *output = cmd->payload_out;
+ struct get_feat_input *input = cmd->payload_in;
+ u16 offset = le16_to_cpu(input->offset);
+ u16 count = le16_to_cpu(input->count);
+ u8 *ptr;
+
+ if (offset > sizeof(*output)) {
+ cmd->return_code = CXL_MBOX_CMD_RC_INPUT;
+ return -EINVAL;
+ }
+
+ if (offset + count > sizeof(*output)) {
+ cmd->return_code = CXL_MBOX_CMD_RC_INPUT;
+ return -EINVAL;
+ }
+
+ ptr = (u8 *)&mdata->test_feat + offset;
+ memcpy((u8 *)output + offset, ptr, count);
+
+ return 0;
+}
+
+static int mock_get_feature(struct cxl_mockmem_data *mdata,
+ struct cxl_mbox_cmd *cmd)
+{
+ struct get_feat_input *input = cmd->payload_in;
+
+ if (uuid_equal(&input->uuid, &CXL_VENDOR_FEATURE_TEST))
+ return mock_get_test_feature(mdata, cmd);
+
+ cmd->return_code = CXL_MBOX_CMD_RC_UNSUPPORTED;
+
+ return -EOPNOTSUPP;
+}
+
static int mock_get_supported_features(struct cxl_mockmem_data *mdata,
struct cxl_mbox_cmd *cmd)
{
@@ -1487,6 +1541,9 @@ static int cxl_mock_mbox_send(struct cxl_mailbox *cxl_mbox,
case CXL_MBOX_OP_GET_SUPPORTED_FEATURES:
rc = mock_get_supported_features(mdata, cmd);
break;
+ case CXL_MBOX_OP_GET_FEATURE:
+ rc = mock_get_feature(mdata, cmd);
+ break;
default:
break;
}
@@ -1534,6 +1591,11 @@ static int cxl_mock_mailbox_create(struct cxl_dev_state *cxlds)
return 0;
}
+static void cxl_mock_test_feat_init(struct cxl_mockmem_data *mdata)
+{
+ mdata->test_feat.data = cpu_to_le32(0xdeadbeef);
+}
+
static int cxl_mock_mem_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1625,6 +1687,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
return rc;
cxl_mem_get_event_records(mds, CXLDEV_EVENT_STATUS_ALL);
+ cxl_mock_test_feat_init(mdata);
return 0;
}
Add emulation of Get Feature command to cxl_test. The feature for device patrol scrub is returned by the emulation code. This is the only feature currently supported by cxl_test. It returns the information for the device patrol scrub feature. Signed-off-by: Dave Jiang <dave.jiang@intel.com> --- tools/testing/cxl/test/mem.c | 63 ++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+)