diff options
Diffstat (limited to 'tools/testing/cxl/test/mem.c')
| -rw-r--r-- | tools/testing/cxl/test/mem.c | 367 |
1 files changed, 292 insertions, 75 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 34b48027b3de..464fc39ed277 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -8,11 +8,14 @@ #include <linux/sizes.h> #include <linux/bits.h> #include <asm/unaligned.h> +#include <crypto/sha2.h> #include <cxlmem.h> #include "trace.h" #define LSA_SIZE SZ_128K +#define FW_SIZE SZ_64M +#define FW_SLOTS 3 #define DEV_SIZE SZ_2G #define EFFECT(x) (1U << x) @@ -21,42 +24,70 @@ static unsigned int poison_inject_dev_max = MOCK_INJECT_DEV_MAX; +enum cxl_command_effects { + CONF_CHANGE_COLD_RESET = 0, + CONF_CHANGE_IMMEDIATE, + DATA_CHANGE_IMMEDIATE, + POLICY_CHANGE_IMMEDIATE, + LOG_CHANGE_IMMEDIATE, + SECURITY_CHANGE_IMMEDIATE, + BACKGROUND_OP, + SECONDARY_MBOX_SUPPORTED, +}; + +#define CXL_CMD_EFFECT_NONE cpu_to_le16(0) + static struct cxl_cel_entry mock_cel[] = { { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_SUPPORTED_LOGS), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_IDENTIFY), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_LSA), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_PARTITION_INFO), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_SET_LSA), - .effect = cpu_to_le16(EFFECT(1) | EFFECT(2)), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_IMMEDIATE) | + EFFECT(DATA_CHANGE_IMMEDIATE)), }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_HEALTH_INFO), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_GET_POISON), - .effect = cpu_to_le16(0), + .effect = CXL_CMD_EFFECT_NONE, }, { .opcode = cpu_to_le16(CXL_MBOX_OP_INJECT_POISON), - .effect = cpu_to_le16(0), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE)), }, { .opcode = cpu_to_le16(CXL_MBOX_OP_CLEAR_POISON), - .effect = cpu_to_le16(0), + .effect = cpu_to_le16(EFFECT(DATA_CHANGE_IMMEDIATE)), + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_GET_FW_INFO), + .effect = CXL_CMD_EFFECT_NONE, + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_TRANSFER_FW), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | + EFFECT(BACKGROUND_OP)), + }, + { + .opcode = cpu_to_le16(CXL_MBOX_OP_ACTIVATE_FW), + .effect = cpu_to_le16(EFFECT(CONF_CHANGE_COLD_RESET) | + EFFECT(CONF_CHANGE_IMMEDIATE)), }, }; @@ -102,13 +133,17 @@ struct mock_event_log { }; struct mock_event_store { - struct cxl_dev_state *cxlds; + struct cxl_memdev_state *mds; struct mock_event_log mock_logs[CXL_EVENT_TYPE_MAX]; u32 ev_status; }; struct cxl_mockmem_data { void *lsa; + void *fw; + int fw_slot; + int fw_staged; + size_t fw_size; u32 security_state; u8 user_pass[NVDIMM_PASSPHRASE_LEN]; u8 master_pass[NVDIMM_PASSPHRASE_LEN]; @@ -180,8 +215,7 @@ static void mes_add_event(struct mock_event_store *mes, log->nr_events++; } -static int mock_get_event(struct cxl_dev_state *cxlds, - struct cxl_mbox_cmd *cmd) +static int mock_get_event(struct device *dev, struct cxl_mbox_cmd *cmd) { struct cxl_get_event_payload *pl; struct mock_event_log *log; @@ -201,7 +235,7 @@ static int mock_get_event(struct cxl_dev_state *cxlds, memset(cmd->payload_out, 0, cmd->size_out); - log = event_find_log(cxlds->dev, log_type); + log = event_find_log(dev, log_type); if (!log || event_log_empty(log)) return 0; @@ -234,8 +268,7 @@ static int mock_get_event(struct cxl_dev_state *cxlds, return 0; } -static int mock_clear_event(struct cxl_dev_state *cxlds, - struct cxl_mbox_cmd *cmd) +static int mock_clear_event(struct device *dev, struct cxl_mbox_cmd *cmd) { struct cxl_mbox_clear_event_payload *pl = cmd->payload_in; struct mock_event_log *log; @@ -246,7 +279,7 @@ static int mock_clear_event(struct cxl_dev_state *cxlds, if (log_type >= CXL_EVENT_TYPE_MAX) return -EINVAL; - log = event_find_log(cxlds->dev, log_type); + log = event_find_log(dev, log_type); if (!log) return 0; /* No mock data in this log */ @@ -256,7 +289,7 @@ static int mock_clear_event(struct cxl_dev_state *cxlds, * However, this is not good behavior for the host so test it. */ if (log->clear_idx + pl->nr_recs > log->cur_idx) { - dev_err(cxlds->dev, + dev_err(dev, "Attempting to clear more events than returned!\n"); return -EINVAL; } @@ -266,7 +299,7 @@ static int mock_clear_event(struct cxl_dev_state *cxlds, nr < pl->nr_recs; nr++, handle++) { if (handle != le16_to_cpu(pl->handles[nr])) { - dev_err(cxlds->dev, "Clearing events out of order\n"); + dev_err(dev, "Clearing events out of order\n"); return -EINVAL; } } @@ -293,7 +326,7 @@ static void cxl_mock_event_trigger(struct device *dev) event_reset_log(log); } - cxl_mem_get_event_records(mes->cxlds, mes->ev_status); + cxl_mem_get_event_records(mes->mds, mes->ev_status); } struct cxl_event_record_raw maint_needed = { @@ -453,7 +486,7 @@ static int mock_gsl(struct cxl_mbox_cmd *cmd) return 0; } -static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_get_log(struct cxl_memdev_state *mds, struct cxl_mbox_cmd *cmd) { struct cxl_mbox_get_log *gl = cmd->payload_in; u32 offset = le32_to_cpu(gl->offset); @@ -463,7 +496,7 @@ static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) if (cmd->size_in < sizeof(*gl)) return -EINVAL; - if (length > cxlds->payload_size) + if (length > mds->payload_size) return -EINVAL; if (offset + length > sizeof(mock_cel)) return -EINVAL; @@ -477,7 +510,7 @@ static int mock_get_log(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) return 0; } -static int mock_rcd_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_rcd_id(struct cxl_mbox_cmd *cmd) { struct cxl_mbox_identify id = { .fw_revision = { "mock fw v1 " }, @@ -495,7 +528,7 @@ static int mock_rcd_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) return 0; } -static int mock_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_id(struct cxl_mbox_cmd *cmd) { struct cxl_mbox_identify id = { .fw_revision = { "mock fw v1 " }, @@ -517,8 +550,7 @@ static int mock_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) return 0; } -static int mock_partition_info(struct cxl_dev_state *cxlds, - struct cxl_mbox_cmd *cmd) +static int mock_partition_info(struct cxl_mbox_cmd *cmd) { struct cxl_mbox_get_partition_info pi = { .active_volatile_cap = @@ -535,11 +567,52 @@ static int mock_partition_info(struct cxl_dev_state *cxlds, return 0; } -static int mock_get_security_state(struct cxl_dev_state *cxlds, - struct cxl_mbox_cmd *cmd) +static int mock_sanitize(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); + if (cmd->size_in != 0) + return -EINVAL; + + if (cmd->size_out != 0) + return -EINVAL; + + if (mdata->security_state & CXL_PMEM_SEC_STATE_USER_PASS_SET) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + if (mdata->security_state & CXL_PMEM_SEC_STATE_LOCKED) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + return 0; /* assume less than 2 secs, no bg */ +} + +static int mock_secure_erase(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) +{ + if (cmd->size_in != 0) + return -EINVAL; + if (cmd->size_out != 0) + return -EINVAL; + + if (mdata->security_state & CXL_PMEM_SEC_STATE_USER_PASS_SET) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + if (mdata->security_state & CXL_PMEM_SEC_STATE_LOCKED) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + return 0; +} + +static int mock_get_security_state(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) +{ if (cmd->size_in) return -EINVAL; @@ -569,9 +642,9 @@ static void user_plimit_check(struct cxl_mockmem_data *mdata) mdata->security_state |= CXL_PMEM_SEC_STATE_USER_PLIMIT; } -static int mock_set_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_set_passphrase(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); struct cxl_set_pass *set_pass; if (cmd->size_in != sizeof(*set_pass)) @@ -629,9 +702,9 @@ static int mock_set_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd return -EINVAL; } -static int mock_disable_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_disable_passphrase(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); struct cxl_disable_pass *dis_pass; if (cmd->size_in != sizeof(*dis_pass)) @@ -700,10 +773,9 @@ static int mock_disable_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_ return 0; } -static int mock_freeze_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_freeze_security(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); - if (cmd->size_in != 0) return -EINVAL; @@ -717,10 +789,9 @@ static int mock_freeze_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd return 0; } -static int mock_unlock_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_unlock_security(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); - if (cmd->size_in != NVDIMM_PASSPHRASE_LEN) return -EINVAL; @@ -759,10 +830,9 @@ static int mock_unlock_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd return 0; } -static int mock_passphrase_secure_erase(struct cxl_dev_state *cxlds, +static int mock_passphrase_secure_erase(struct cxl_mockmem_data *mdata, struct cxl_mbox_cmd *cmd) { - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); struct cxl_pass_erase *erase; if (cmd->size_in != sizeof(*erase)) @@ -858,10 +928,10 @@ static int mock_passphrase_secure_erase(struct cxl_dev_state *cxlds, return 0; } -static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_get_lsa(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { struct cxl_mbox_get_lsa *get_lsa = cmd->payload_in; - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); void *lsa = mdata->lsa; u32 offset, length; @@ -878,10 +948,10 @@ static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) return 0; } -static int mock_set_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_set_lsa(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { struct cxl_mbox_set_lsa *set_lsa = cmd->payload_in; - struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev); void *lsa = mdata->lsa; u32 offset, length; @@ -896,8 +966,7 @@ static int mock_set_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) return 0; } -static int mock_health_info(struct cxl_dev_state *cxlds, - struct cxl_mbox_cmd *cmd) +static int mock_health_info(struct cxl_mbox_cmd *cmd) { struct cxl_mbox_health_info health_info = { /* set flags for maint needed, perf degraded, hw replacement */ @@ -1114,9 +1183,90 @@ static struct attribute *cxl_mock_mem_core_attrs[] = { }; ATTRIBUTE_GROUPS(cxl_mock_mem_core); -static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +static int mock_fw_info(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mbox_get_fw_info fw_info = { + .num_slots = FW_SLOTS, + .slot_info = (mdata->fw_slot & 0x7) | + ((mdata->fw_staged & 0x7) << 3), + .activation_cap = 0, + }; + + strcpy(fw_info.slot_1_revision, "cxl_test_fw_001"); + strcpy(fw_info.slot_2_revision, "cxl_test_fw_002"); + strcpy(fw_info.slot_3_revision, "cxl_test_fw_003"); + strcpy(fw_info.slot_4_revision, ""); + + if (cmd->size_out < sizeof(fw_info)) + return -EINVAL; + + memcpy(cmd->payload_out, &fw_info, sizeof(fw_info)); + return 0; +} + +static int mock_transfer_fw(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) { + struct cxl_mbox_transfer_fw *transfer = cmd->payload_in; + void *fw = mdata->fw; + size_t offset, length; + + offset = le32_to_cpu(transfer->offset) * CXL_FW_TRANSFER_ALIGNMENT; + length = cmd->size_in - sizeof(*transfer); + if (offset + length > FW_SIZE) + return -EINVAL; + + switch (transfer->action) { + case CXL_FW_TRANSFER_ACTION_FULL: + if (offset != 0) + return -EINVAL; + fallthrough; + case CXL_FW_TRANSFER_ACTION_END: + if (transfer->slot == 0 || transfer->slot > FW_SLOTS) + return -EINVAL; + mdata->fw_size = offset + length; + break; + case CXL_FW_TRANSFER_ACTION_INITIATE: + case CXL_FW_TRANSFER_ACTION_CONTINUE: + break; + case CXL_FW_TRANSFER_ACTION_ABORT: + return 0; + default: + return -EINVAL; + } + + memcpy(fw + offset, transfer->data, length); + return 0; +} + +static int mock_activate_fw(struct cxl_mockmem_data *mdata, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_mbox_activate_fw *activate = cmd->payload_in; + + if (activate->slot == 0 || activate->slot > FW_SLOTS) + return -EINVAL; + + switch (activate->action) { + case CXL_FW_ACTIVATE_ONLINE: + mdata->fw_slot = activate->slot; + mdata->fw_staged = 0; + return 0; + case CXL_FW_ACTIVATE_OFFLINE: + mdata->fw_staged = activate->slot; + return 0; + } + + return -EINVAL; +} + +static int cxl_mock_mbox_send(struct cxl_memdev_state *mds, + struct cxl_mbox_cmd *cmd) +{ + struct cxl_dev_state *cxlds = &mds->cxlds; struct device *dev = cxlds->dev; + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); int rc = -EIO; switch (cmd->opcode) { @@ -1127,49 +1277,55 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd * rc = mock_gsl(cmd); break; case CXL_MBOX_OP_GET_LOG: - rc = mock_get_log(cxlds, cmd); + rc = mock_get_log(mds, cmd); break; case CXL_MBOX_OP_IDENTIFY: if (cxlds->rcd) - rc = mock_rcd_id(cxlds, cmd); + rc = mock_rcd_id(cmd); else - rc = mock_id(cxlds, cmd); + rc = mock_id(cmd); break; case CXL_MBOX_OP_GET_LSA: - rc = mock_get_lsa(cxlds, cmd); + rc = mock_get_lsa(mdata, cmd); break; case CXL_MBOX_OP_GET_PARTITION_INFO: - rc = mock_partition_info(cxlds, cmd); + rc = mock_partition_info(cmd); break; case CXL_MBOX_OP_GET_EVENT_RECORD: - rc = mock_get_event(cxlds, cmd); + rc = mock_get_event(dev, cmd); break; case CXL_MBOX_OP_CLEAR_EVENT_RECORD: - rc = mock_clear_event(cxlds, cmd); + rc = mock_clear_event(dev, cmd); break; case CXL_MBOX_OP_SET_LSA: - rc = mock_set_lsa(cxlds, cmd); + rc = mock_set_lsa(mdata, cmd); break; case CXL_MBOX_OP_GET_HEALTH_INFO: - rc = mock_health_info(cxlds, cmd); + rc = mock_health_info(cmd); + break; + case CXL_MBOX_OP_SANITIZE: + rc = mock_sanitize(mdata, cmd); + break; + case CXL_MBOX_OP_SECURE_ERASE: + rc = mock_secure_erase(mdata, cmd); break; case CXL_MBOX_OP_GET_SECURITY_STATE: - rc = mock_get_security_state(cxlds, cmd); + rc = mock_get_security_state(mdata, cmd); break; case CXL_MBOX_OP_SET_PASSPHRASE: - rc = mock_set_passphrase(cxlds, cmd); + rc = mock_set_passphrase(mdata, cmd); break; case CXL_MBOX_OP_DISABLE_PASSPHRASE: - rc = mock_disable_passphrase(cxlds, cmd); + rc = mock_disable_passphrase(mdata, cmd); break; case CXL_MBOX_OP_FREEZE_SECURITY: - rc = mock_freeze_security(cxlds, cmd); + rc = mock_freeze_security(mdata, cmd); break; case CXL_MBOX_OP_UNLOCK: - rc = mock_unlock_security(cxlds, cmd); + rc = mock_unlock_security(mdata, cmd); break; case CXL_MBOX_OP_PASSPHRASE_SECURE_ERASE: - rc = mock_passphrase_secure_erase(cxlds, cmd); + rc = mock_passphrase_secure_erase(mdata, cmd); break; case CXL_MBOX_OP_GET_POISON: rc = mock_get_poison(cxlds, cmd); @@ -1180,6 +1336,15 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd * case CXL_MBOX_OP_CLEAR_POISON: rc = mock_clear_poison(cxlds, cmd); break; + case CXL_MBOX_OP_GET_FW_INFO: + rc = mock_fw_info(mdata, cmd); + break; + case CXL_MBOX_OP_TRANSFER_FW: + rc = mock_transfer_fw(mdata, cmd); + break; + case CXL_MBOX_OP_ACTIVATE_FW: + rc = mock_activate_fw(mdata, cmd); + break; default: break; } @@ -1195,6 +1360,11 @@ static void label_area_release(void *lsa) vfree(lsa); } +static void fw_buf_release(void *buf) +{ + vfree(buf); +} + static bool is_rcd(struct platform_device *pdev) { const struct platform_device_id *id = platform_get_device_id(pdev); @@ -1215,6 +1385,7 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct cxl_memdev *cxlmd; + struct cxl_memdev_state *mds; struct cxl_dev_state *cxlds; struct cxl_mockmem_data *mdata; int rc; @@ -1227,52 +1398,67 @@ static int cxl_mock_mem_probe(struct platform_device *pdev) mdata->lsa = vmalloc(LSA_SIZE); if (!mdata->lsa) return -ENOMEM; + mdata->fw = vmalloc(FW_SIZE); + if (!mdata->fw) + return -ENOMEM; + mdata->fw_slot = 2; + rc = devm_add_action_or_reset(dev, label_area_release, mdata->lsa); if (rc) return rc; - cxlds = cxl_dev_state_create(dev); - if (IS_ERR(cxlds)) - return PTR_ERR(cxlds); + rc = devm_add_action_or_reset(dev, fw_buf_release, mdata->fw); + if (rc) + return rc; + + mds = cxl_memdev_state_create(dev); + if (IS_ERR(mds)) + return PTR_ERR(mds); + mds->mbox_send = cxl_mock_mbox_send; + mds->payload_size = SZ_4K; + mds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf; + + cxlds = &mds->cxlds; cxlds->serial = pdev->id; - cxlds->mbox_send = cxl_mock_mbox_send; - cxlds->payload_size = SZ_4K; - cxlds->event.buf = (struct cxl_get_event_payload *) mdata->event_buf; if (is_rcd(pdev)) { cxlds->rcd = true; cxlds->component_reg_phys = CXL_RESOURCE_NONE; } - rc = cxl_enumerate_cmds(cxlds); + rc = cxl_enumerate_cmds(mds); if (rc) return rc; - rc = cxl_poison_state_init(cxlds); + rc = cxl_poison_state_init(mds); if (rc) return rc; - rc = cxl_set_timestamp(cxlds); + rc = cxl_set_timestamp(mds); if (rc) return rc; cxlds->media_ready = true; - rc = cxl_dev_state_identify(cxlds); + rc = cxl_dev_state_identify(mds); if (rc) return rc; - rc = cxl_mem_create_range_info(cxlds); + rc = cxl_mem_create_range_info(mds); if (rc) return rc; - mdata->mes.cxlds = cxlds; + mdata->mes.mds = mds; cxl_mock_add_event_logs(&mdata->mes); cxlmd = devm_cxl_add_memdev(cxlds); if (IS_ERR(cxlmd)) return PTR_ERR(cxlmd); - cxl_mem_get_event_records(cxlds, CXLDEV_EVENT_STATUS_ALL); + rc = cxl_memdev_setup_fw_upload(mds); + if (rc) + return rc; + + cxl_mem_get_event_records(mds, CXLDEV_EVENT_STATUS_ALL); return 0; } @@ -1310,9 +1496,40 @@ static ssize_t security_lock_store(struct device *dev, struct device_attribute * static DEVICE_ATTR_RW(security_lock); +static ssize_t fw_buf_checksum_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cxl_mockmem_data *mdata = dev_get_drvdata(dev); + u8 hash[SHA256_DIGEST_SIZE]; + unsigned char *hstr, *hptr; + struct sha256_state sctx; + ssize_t written = 0; + int i; + + sha256_init(&sctx); + sha256_update(&sctx, mdata->fw, mdata->fw_size); + sha256_final(&sctx, hash); + + hstr = kzalloc((SHA256_DIGEST_SIZE * 2) + 1, GFP_KERNEL); + if (!hstr) + return -ENOMEM; + + hptr = hstr; + for (i = 0; i < SHA256_DIGEST_SIZE; i++) + hptr += sprintf(hptr, "%02x", hash[i]); + + written = sysfs_emit(buf, "%s\n", hstr); + + kfree(hstr); + return written; +} + +static DEVICE_ATTR_RO(fw_buf_checksum); + static struct attribute *cxl_mock_mem_attrs[] = { &dev_attr_security_lock.attr, &dev_attr_event_trigger.attr, + &dev_attr_fw_buf_checksum.attr, NULL }; ATTRIBUTE_GROUPS(cxl_mock_mem); |