diff options
| author | Alison Schofield <alison.schofield@intel.com> | 2023-04-19 06:26:31 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-04-23 22:08:39 +0300 |
| commit | 6ec4b6d23e3a5b653cc8b6a7b09c20c30190cfce (patch) | |
| tree | 5efa470cb5a58de7ccbffe0213a7d76b75f4c31b /tools | |
| parent | 371c16101ee8a076cbe93ab95bbefdb43927003e (diff) | |
| download | linux-6ec4b6d23e3a5b653cc8b6a7b09c20c30190cfce.tar.xz | |
tools/testing/cxl: Mock the Clear Poison mailbox command
Mock the clear of poison by deleting the device:address entry from
the mock_poison_list[]. Behave like a real CXL device and do not fail
if the address is not in the poison list, but offer a dev_dbg()
message.
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/ecf19743c6572e60971bbd078f67d520cf5bca5d.1681874357.git.alison.schofield@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/cxl/test/mem.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 2731ebbd175b..3c3909d30d03 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -52,6 +52,10 @@ static struct cxl_cel_entry mock_cel[] = { .opcode = cpu_to_le16(CXL_MBOX_OP_INJECT_POISON), .effect = cpu_to_le16(0), }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_CLEAR_POISON), + .effect = cpu_to_le16(0), + }, }; /* See CXL 2.0 Table 181 Get Health Info Output Payload */ @@ -997,6 +1001,35 @@ static int mock_inject_poison(struct cxl_dev_state *cxlds, return 0; } +static bool mock_poison_del(struct cxl_dev_state *cxlds, u64 dpa) +{ + for (int i = 0; i < MOCK_INJECT_TEST_MAX; i++) { + if (mock_poison_list[i].cxlds == cxlds && + mock_poison_list[i].dpa == dpa) { + mock_poison_list[i].cxlds = NULL; + return true; + } + } + return false; +} + +static int mock_clear_poison(struct cxl_dev_state *cxlds, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mbox_clear_poison *pi = cmd->payload_in; + u64 dpa = le64_to_cpu(pi->address); + + /* + * A real CXL device will write pi->write_data to the address + * being cleared. In this mock, just delete this address from + * the mock poison list. + */ + if (!mock_poison_del(cxlds, dpa)) + dev_dbg(cxlds->dev, "DPA: 0x%llx not in poison list\n", dpa); + + return 0; +} + static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) { struct device *dev = cxlds->dev; @@ -1057,6 +1090,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd * case CXL_MBOX_OP_INJECT_POISON: rc = mock_inject_poison(cxlds, cmd); break; + case CXL_MBOX_OP_CLEAR_POISON: + rc = mock_clear_poison(cxlds, cmd); + break; default: break; } |