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Diffstat (limited to 'tools/testing/cxl/test/mem.c')
-rw-r--r--tools/testing/cxl/test/mem.c150
1 files changed, 102 insertions, 48 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 12a8437a9ca0..aa2df3a15051 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -4,11 +4,13 @@
#include <linux/platform_device.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
+#include <linux/delay.h>
#include <linux/sizes.h>
#include <linux/bits.h>
#include <cxlmem.h>
#define LSA_SIZE SZ_128K
+#define DEV_SIZE SZ_2G
#define EFFECT(x) (1U << x)
static struct cxl_cel_entry mock_cel[] = {
@@ -25,11 +27,31 @@ static struct cxl_cel_entry mock_cel[] = {
.effect = cpu_to_le16(0),
},
{
+ .opcode = cpu_to_le16(CXL_MBOX_OP_GET_PARTITION_INFO),
+ .effect = cpu_to_le16(0),
+ },
+ {
.opcode = cpu_to_le16(CXL_MBOX_OP_SET_LSA),
.effect = cpu_to_le16(EFFECT(1) | EFFECT(2)),
},
+ {
+ .opcode = cpu_to_le16(CXL_MBOX_OP_GET_HEALTH_INFO),
+ .effect = cpu_to_le16(0),
+ },
};
+/* See CXL 2.0 Table 181 Get Health Info Output Payload */
+struct cxl_mbox_health_info {
+ u8 health_status;
+ u8 media_status;
+ u8 ext_status;
+ u8 life_used;
+ __le16 temperature;
+ __le32 dirty_shutdowns;
+ __le32 volatile_errors;
+ __le32 pmem_errors;
+} __packed;
+
static struct {
struct cxl_mbox_get_supported_logs gsl;
struct cxl_gsl_entry entry;
@@ -54,7 +76,7 @@ static int mock_gsl(struct cxl_mbox_cmd *cmd)
return 0;
}
-static int mock_get_log(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
+static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
struct cxl_mbox_get_log *gl = cmd->payload_in;
u32 offset = le32_to_cpu(gl->offset);
@@ -64,7 +86,7 @@ static int mock_get_log(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
if (cmd->size_in < sizeof(*gl))
return -EINVAL;
- if (length > cxlm->payload_size)
+ if (length > cxlds->payload_size)
return -EINVAL;
if (offset + length > sizeof(mock_cel))
return -EINVAL;
@@ -78,52 +100,47 @@ static int mock_get_log(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
return 0;
}
-static int mock_id(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
+static int mock_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
- struct platform_device *pdev = to_platform_device(cxlm->dev);
struct cxl_mbox_identify id = {
.fw_revision = { "mock fw v1 " },
.lsa_size = cpu_to_le32(LSA_SIZE),
- /* FIXME: Add partition support */
- .partition_align = cpu_to_le64(0),
+ .partition_align =
+ cpu_to_le64(SZ_256M / CXL_CAPACITY_MULTIPLIER),
+ .total_capacity =
+ cpu_to_le64(DEV_SIZE / CXL_CAPACITY_MULTIPLIER),
};
- u64 capacity = 0;
- int i;
if (cmd->size_out < sizeof(id))
return -EINVAL;
- for (i = 0; i < 2; i++) {
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- if (!res)
- break;
-
- capacity += resource_size(res) / CXL_CAPACITY_MULTIPLIER;
+ memcpy(cmd->payload_out, &id, sizeof(id));
- if (le64_to_cpu(id.partition_align))
- continue;
+ return 0;
+}
- if (res->desc == IORES_DESC_PERSISTENT_MEMORY)
- id.persistent_capacity = cpu_to_le64(
- resource_size(res) / CXL_CAPACITY_MULTIPLIER);
- else
- id.volatile_capacity = cpu_to_le64(
- resource_size(res) / CXL_CAPACITY_MULTIPLIER);
- }
+static int mock_partition_info(struct cxl_dev_state *cxlds,
+ struct cxl_mbox_cmd *cmd)
+{
+ struct cxl_mbox_get_partition_info pi = {
+ .active_volatile_cap =
+ cpu_to_le64(DEV_SIZE / 2 / CXL_CAPACITY_MULTIPLIER),
+ .active_persistent_cap =
+ cpu_to_le64(DEV_SIZE / 2 / CXL_CAPACITY_MULTIPLIER),
+ };
- id.total_capacity = cpu_to_le64(capacity);
+ if (cmd->size_out < sizeof(pi))
+ return -EINVAL;
- memcpy(cmd->payload_out, &id, sizeof(id));
+ memcpy(cmd->payload_out, &pi, sizeof(pi));
return 0;
}
-static int mock_get_lsa(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
+static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
struct cxl_mbox_get_lsa *get_lsa = cmd->payload_in;
- void *lsa = dev_get_drvdata(cxlm->dev);
+ void *lsa = dev_get_drvdata(cxlds->dev);
u32 offset, length;
if (sizeof(*get_lsa) > cmd->size_in)
@@ -139,10 +156,10 @@ static int mock_get_lsa(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
return 0;
}
-static int mock_set_lsa(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
+static int mock_set_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
struct cxl_mbox_set_lsa *set_lsa = cmd->payload_in;
- void *lsa = dev_get_drvdata(cxlm->dev);
+ void *lsa = dev_get_drvdata(cxlds->dev);
u32 offset, length;
if (sizeof(*set_lsa) > cmd->size_in)
@@ -156,9 +173,39 @@ static int mock_set_lsa(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
return 0;
}
-static int cxl_mock_mbox_send(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
+static int mock_health_info(struct cxl_dev_state *cxlds,
+ struct cxl_mbox_cmd *cmd)
{
- struct device *dev = cxlm->dev;
+ struct cxl_mbox_health_info health_info = {
+ /* set flags for maint needed, perf degraded, hw replacement */
+ .health_status = 0x7,
+ /* set media status to "All Data Lost" */
+ .media_status = 0x3,
+ /*
+ * set ext_status flags for:
+ * ext_life_used: normal,
+ * ext_temperature: critical,
+ * ext_corrected_volatile: warning,
+ * ext_corrected_persistent: normal,
+ */
+ .ext_status = 0x18,
+ .life_used = 15,
+ .temperature = cpu_to_le16(25),
+ .dirty_shutdowns = cpu_to_le32(10),
+ .volatile_errors = cpu_to_le32(20),
+ .pmem_errors = cpu_to_le32(30),
+ };
+
+ if (cmd->size_out < sizeof(health_info))
+ return -EINVAL;
+
+ memcpy(cmd->payload_out, &health_info, sizeof(health_info));
+ return 0;
+}
+
+static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+{
+ struct device *dev = cxlds->dev;
int rc = -EIO;
switch (cmd->opcode) {
@@ -166,16 +213,22 @@ static int cxl_mock_mbox_send(struct cxl_mem *cxlm, struct cxl_mbox_cmd *cmd)
rc = mock_gsl(cmd);
break;
case CXL_MBOX_OP_GET_LOG:
- rc = mock_get_log(cxlm, cmd);
+ rc = mock_get_log(cxlds, cmd);
break;
case CXL_MBOX_OP_IDENTIFY:
- rc = mock_id(cxlm, cmd);
+ rc = mock_id(cxlds, cmd);
break;
case CXL_MBOX_OP_GET_LSA:
- rc = mock_get_lsa(cxlm, cmd);
+ rc = mock_get_lsa(cxlds, cmd);
+ break;
+ case CXL_MBOX_OP_GET_PARTITION_INFO:
+ rc = mock_partition_info(cxlds, cmd);
break;
case CXL_MBOX_OP_SET_LSA:
- rc = mock_set_lsa(cxlm, cmd);
+ rc = mock_set_lsa(cxlds, cmd);
+ break;
+ case CXL_MBOX_OP_GET_HEALTH_INFO:
+ rc = mock_health_info(cxlds, cmd);
break;
default:
break;
@@ -196,7 +249,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct cxl_memdev *cxlmd;
- struct cxl_mem *cxlm;
+ struct cxl_dev_state *cxlds;
void *lsa;
int rc;
@@ -208,30 +261,31 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
return rc;
dev_set_drvdata(dev, lsa);
- cxlm = cxl_mem_create(dev);
- if (IS_ERR(cxlm))
- return PTR_ERR(cxlm);
+ cxlds = cxl_dev_state_create(dev);
+ if (IS_ERR(cxlds))
+ return PTR_ERR(cxlds);
- cxlm->mbox_send = cxl_mock_mbox_send;
- cxlm->payload_size = SZ_4K;
+ cxlds->serial = pdev->id;
+ cxlds->mbox_send = cxl_mock_mbox_send;
+ cxlds->payload_size = SZ_4K;
- rc = cxl_mem_enumerate_cmds(cxlm);
+ rc = cxl_enumerate_cmds(cxlds);
if (rc)
return rc;
- rc = cxl_mem_identify(cxlm);
+ rc = cxl_dev_state_identify(cxlds);
if (rc)
return rc;
- rc = cxl_mem_create_range_info(cxlm);
+ rc = cxl_mem_create_range_info(cxlds);
if (rc)
return rc;
- cxlmd = devm_cxl_add_memdev(cxlm);
+ cxlmd = devm_cxl_add_memdev(cxlds);
if (IS_ERR(cxlmd))
return PTR_ERR(cxlmd);
- if (range_len(&cxlm->pmem_range) && IS_ENABLED(CONFIG_CXL_PMEM))
+ if (resource_size(&cxlds->pmem_res) && IS_ENABLED(CONFIG_CXL_PMEM))
rc = devm_cxl_add_nvdimm(dev, cxlmd);
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.