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tools/testing/cxl: Use injected poison for get poison list

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Prior to poison inject support, the mock of 'Get Poison List'
returned a poison list containing a single mocked error record.

Following the addition of poison inject and clear support to the
mock driver, use the mock_poison_list[], rather than faking an
error record. Mock_poison_list[] list tracks the actual poison
inject and clear requests issued by userspace.

Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/0f4242c81821f4982b02cb1009c22783ef66b2f1.1681874357.git.alison.schofield@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Alison Schofield 2023-04-18 20:26:32 -07:00 committed by Dan Williams
parent 6ec4b6d23e
commit 8eac7ea725
1 changed files with 43 additions and 19 deletions
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62
tools/testing/cxl/test/mem.c
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@ -912,31 +912,55 @@ static struct mock_poison {
u64 dpa;
} mock_poison_list[MOCK_INJECT_TEST_MAX];
static struct cxl_mbox_poison_out *
cxl_get_injected_po(struct cxl_dev_state *cxlds, u64 offset, u64 length)
{
struct cxl_mbox_poison_out *po;
int nr_records = 0;
u64 dpa;
po = kzalloc(struct_size(po, record, MOCK_INJECT_DEV_MAX), GFP_KERNEL);
if (!po)
return NULL;
for (int i = 0; i < MOCK_INJECT_TEST_MAX; i++) {
if (mock_poison_list[i].cxlds != cxlds)
continue;
if (mock_poison_list[i].dpa < offset ||
mock_poison_list[i].dpa > offset + length - 1)
continue;
dpa = mock_poison_list[i].dpa + CXL_POISON_SOURCE_INJECTED;
po->record[nr_records].address = cpu_to_le64(dpa);
po->record[nr_records].length = cpu_to_le32(1);
nr_records++;
if (nr_records == MOCK_INJECT_DEV_MAX)
break;
}
/* Always return count, even when zero */
po->count = cpu_to_le16(nr_records);
return po;
}
static int mock_get_poison(struct cxl_dev_state *cxlds,
struct cxl_mbox_cmd *cmd)
{
struct cxl_mbox_poison_in *pi = cmd->payload_in;
struct cxl_mbox_poison_out *po;
u64 offset = le64_to_cpu(pi->offset);
u64 length = le64_to_cpu(pi->length);
int nr_records;
/* Mock one poison record at pi.offset for 64 bytes */
struct {
struct cxl_mbox_poison_out po;
struct cxl_poison_record record;
} __packed mock_plist = {
.po = {
.count = cpu_to_le16(1),
},
.record = {
.length = cpu_to_le32(1),
.address = cpu_to_le64(le64_to_cpu(pi->offset) +
CXL_POISON_SOURCE_INJECTED),
},
};
po = cxl_get_injected_po(cxlds, offset, length);
if (!po)
return -ENOMEM;
nr_records = le16_to_cpu(po->count);
memcpy(cmd->payload_out, po, struct_size(po, record, nr_records));
cmd->size_out = struct_size(po, record, nr_records);
kfree(po);
if (cmd->size_out < sizeof(mock_plist))
return -EINVAL;
memcpy(cmd->payload_out, &mock_plist, sizeof(mock_plist));
cmd->size_out = sizeof(mock_plist);
return 0;
}