/* * This file and its contents are supplied under the terms of the * Common Development and Distribution License ("CDDL"), version 1.0. * You may only use this file in accordance with the terms of version * 1.0 of the CDDL. * * A full copy of the text of the CDDL should have accompanied this * source. A copy of the CDDL is also available via the Internet at * http://www.illumos.org/license/CDDL. */ /* * Copyright 2024 Oxide Computer Company */ #ifndef _SYS_NVME_OCP_H #define _SYS_NVME_OCP_H /* * This header defines vendor-specific NVMe interfaces and is not a committed * interface. Its contents and existence are subject to change. * * This covers the OCP Datacenter NVMe SSD Specification versions 2.0 and 2.5. * Version 1.0 of this specification was previously called the OCP NVMe Cloud * SSD Specification. */ #include #include #include #ifdef __cplusplus extern "C" { #endif typedef enum { /* * This is the OCP variant of SMART information. Present since v1.0. * Scoped to the NVM subsystem. Tracked by the ocp_vul_smart_t. */ OCP_LOG_DSSD_SMART = 0xc0, /* * Error recovery information. Present since v1.0. Scoped to the NVM * subsystem. */ OCP_LOG_DSSD_ERROR_REC = 0xc1, /* * This log page covers firmware activation history. It was added in * v1.0 of the specification, but v2.5 removed this as obsolete. Scoped * to the NVM subsystem. */ OCP_LOG_DSSD_FWACT = 0xc2, /* * This is the latency monitor log page that has information in tandem * with the Latency monitor feature (0xc5). Added in v2.0. Scoped to the * controller. */ OCP_LOG_DSSD_LATENCY = 0xc3, /* * This log page indicates various device capabilities. Added in v2.0. * Scoped to the NVM subsystem. */ OCP_LOG_DSSD_DEV_CAP = 0xc4, /* * This log page indicates which requirements aren't actually * implemented by a device. Added in v2.0. Scoped to the NVM subsystem. */ OCP_LOG_DSSD_UNSUP_REQ = 0xc5, /* * This log page covers various trusted computing group configuration. * Added in v2.5. Scoped to the NVM subsystem. */ OCP_LOG_DSSD_TCG = 0xc7, /* * This is the telemetry string log. Added in v2.5. Scoped to the NVM * subsystem. */ OCP_LOG_DSSD_TELEMTRY = 0xc9 } ocp_vul_t; typedef enum { /* * Error injection feature. Added in v1.0. Scoped to the NVM subsystem. */ OCP_FEAT_DSSD_ERR_INJ = 0xc0, /* * Clear the firmware activation and update history log. Added in v1.0, * but marked obsolete in v2.5. Scoped to the NVM subsystem. */ OCP_FEAT_DSSD_CLEAR_FWACT = 0xc1, /* * Controls the failure mode on device EOL or power loss protection * (PLP) failure. Added in v1.0. Scoped to the NVM subsystem. */ OCP_FEAT_DSSD_EOLPLP = 0xc2, /* * Clears the PCIe correctable error counters. Added in v1.0. Scoped to * the controller. */ OCP_FEAT_DSSD_CLEAR_PCIE_ERRCOR = 0xc3, /* * Manipulates the IEEE1667 silo which ties into the OPAL security * feature set. Added in v1.0. Scoped to the NVM subsystem. */ OCP_FEAT_DSSD_IEEE1667 = 0xc4, /* * Controls the latency monitor feature. Added in v2.0. Scoped to the * controller. */ OCP_FEAT_DSSD_LATENCY = 0xc5, /* * Controls the PLP health check interval. Added in v2.0. Scoped to the * NVM subsystem. */ OCP_FEAT_DSSD_PLP_HEALTH = 0xc6, /* * Controls the power state that the device is in. Added in v2.0. Scoped * to the NVM subsystem. */ OCP_FEAT_DSSD_POWER_STATE = 0xc7, /* * Controls the OCP DSSD telemetry profile that should be active. Added * in v2.5. Scoped to the NVM subsystem. */ OCP_FEAT_DSSD_TEL_PROFILE = 0xc8, /* * Controls whether additional spec-specific events should be sent with * the asynchronous event commands. */ OCP_FEAT_DSSD_ASYNC_EVENT = 0xc9 } ocp_vuf_t; /* * All data structures must be packed to account for the layout from the various * specifications. All fields are required to be in little endian. */ #pragma pack(1) /* * OCP SMART / Health log page. A number in parentheses like (2.0) indicates the * version something was added in if it was not v1.0. */ typedef struct { /* * Physical media units read and written. */ uint8_t osh_pmed_write[16]; uint8_t osh_pmed_read[16]; /* * Bad user and system NAND blocks. Both a raw count and normalized * value (percentage remaining). */ uint8_t osh_bunb_raw[6]; uint16_t osh_bunb_norm; uint8_t osh_bsnb_raw[6]; uint16_t osh_bsnb_norm; /* * Various error and recovery metrics: * - XOR * - Uncorrectable reads * - Soft ECC errors * - End to end errors detected and corrected */ uint64_t osh_xor_rec; uint64_t osh_read_unrec; uint64_t osh_soft_ecc_err; uint32_t osh_e2e_det; uint32_t osh_e2e_corr; /* * Tracks the normalized percent used of the device by estimated erase * cycles per block. */ uint8_t osh_sys_used; /* * This is the count of blocks that have been refreshed. */ uint8_t osh_refresh[7]; /* * Tracks the maximum and minimum erase count across NAND reserved for * the user. */ uint32_t osh_udec_max; uint32_t osh_udec_min; /* * The number of events and the current level of throttling. */ uint8_t osh_therm_event; uint8_t osh_throt_level; /* * DSSD versioning for the device. (2.0). */ uint8_t osh_vers_errata; uint16_t osh_vers_point; uint16_t osh_vers_minor; uint8_t osh_vers_major; /* * PCIe Correctable error count. */ uint64_t osh_pcie_errcor; /* * Incomplete shutdowns. */ uint32_t osh_inc_shut; uint8_t osh_rsvd116[4]; /* * Normalized free percentage. */ uint8_t osh_free; uint8_t osh_rsvd121[7]; /* * Capacitor health as a percentage. */ uint16_t osh_cap_health; /* * NVMe base spec errata version (2.0). * NVMe cmd spec errata version (2.5). */ uint8_t osh_nvme_base_errata; uint8_t osh_nvme_cmd_errata; uint8_t osh_rsvd132[4]; /* * Quantity of unaligned I/O */ uint64_t osh_unaligned; /* * An incrementing integer representing a security version that * shouldn't be rolled back across. */ uint64_t osh_sec_vers; /* * Namespace utilization. */ uint64_t osh_nuse; /* * Count of events where PLP kicked in. */ uint8_t osh_plp_start[16]; /* * Estimation of total data that can be written to the device in bytes. */ uint8_t osh_endurnace[16]; /* * Count of PCIe retraining events (2.0). */ uint64_t osh_pcie_retrain; /* * Count of power state changes, regardless of initiator. (2.0). */ uint64_t osh_ps_change; /* * Minimum permitted firmware version for rollback purposes. */ uint64_t osh_min_fwrev; uint8_t osh_rsvd216[278]; /* * v1.0: 2, v2.0: 3, v2.5: 4 */ uint16_t osh_vers; /* * Log page GUID: AFD514C97C6F4F9CA4f2BFEA2810AFC5h. */ uint8_t osh_guid[16]; } ocp_vul_smart_t; /* * OCP Error Recovery log. */ typedef struct { /* * Time in ms to wait for a reset to complete. */ uint16_t oer_prwt; /* * List of reset actions we should consider taking. See ocp_errrec_pra_t * for bit meanings. */ uint8_t oer_pra; /* * List of steps to take to handle the device's recovery from a given * situation. See ocp_errrec_dra_t for bit meanings. */ uint8_t oer_dra; uint64_t oer_panic_id; /* * See ocp_errrec_devcap_t for more information. */ uint32_t oer_devcap; /* * Information for how to send the vendor specific recovery command. The * timout was added in 2.0. */ uint8_t oer_vsr_opcode; uint8_t oer_rsvd17[3]; uint32_t oer_vsr_cdw12; uint32_t oer_vsr_cdw13; uint8_t oer_vsr_to; /* * Secondary recovery actions post-reset (2.5). Uses the same bits as * ocp_errrec_dra_t. */ uint8_t oer_dra2; uint8_t oer_dra2_to; uint8_t oer_npanic; uint64_t oer_old_panics[4]; uint8_t oer_rsvd54[430]; /* * V1.0: 1, V2.0: 2, V2.5: 3 */ uint16_t oer_vers; /* * Log page GUID: 5A1983BA3DFD4DABAE3430FE2131D944h. */ uint8_t oer_guid[16]; } ocp_vul_errrec_t; /* * List of panic reset actions that should be taken to recover. */ typedef enum { /* NVMe Controller Reset */ OCP_LOG_ERRREC_F_PRA_CTRL = 1 << 0, /* NVM Subsystem Reset */ OCP_LOG_ERRREC_F_PRA_SUBSYS = 1 << 1, /* PCIe Function Level Reset */ OCP_LOG_ERRREC_F_PRA_FLR = 1 << 2, /* ASSERT #PERST (PCIe Fundamental Reset) */ OCP_LOG_ERRREC_F_PRA_PERST = 1 << 3, /* Power cycle the device */ OCP_LOG_ERRREC_F_PRA_POWER = 1 << 4, /* PCIe conventional hot reset */ OCP_LOG_ERRREC_F_PRA_HOT = 1 << 5 } ocp_errrec_pra_t; typedef enum { /* Do nothing */ OCP_LOG_ERRREC_F_DRA_NONE = 1 << 0, /* Format required */ OCP_LOG_ERRREC_F_DRA_FMT = 1 << 1, /* Vendor specific commad */ OCP_LOG_ERRREC_F_DRA_VSC = 1 << 2, /* Vendor analysis required */ OCP_LOG_ERRREC_F_DRA_VAR = 1 << 3, /* Replace the device */ OCP_LOG_ERRREC_F_DRA_REPLACE = 1 << 4, /* Sanitize required */ OCP_LOG_ERRREC_F_DRA_SANITIZE = 1 << 5, /* * Indicates that there is permanent data loss in some LBAs. The LBAs * are identified by the LBA Status log 0xe. */ OCP_LOG_ERRREC_F_DRA_DATALOSS = 1 << 6, } ocp_errrec_dra_t; /* * Device capabilities. Used to indicate how a message about a panic can be sent * today. */ typedef enum { OCP_LOG_ERRREC_F_DEVCAP_AEN = 1 << 0, OCP_LOG_ERRREC_F_DEVCAP_CFS = 1 << 1 } ocp_errrec_devcap_t; /* * OCP Firmware Activation. Present in 1.0 and 2.0. Removed in 2.5. */ typedef struct { uint8_t ofe_vers; uint8_t ofe_len; uint8_t ofe_rsvd2[2]; uint16_t ofe_count; uint64_t ofe_ts; uint8_t ofe_rsvd14[8]; uint64_t ofe_pcc; uint64_t ofe_prev_fw; uint64_t ofe_new_fw; uint8_t ofe_slot; uint8_t ofe_ctype; uint16_t ofe_res; uint8_t ofe_rsvd50[14]; } ocp_fwact_entry_t; typedef struct { uint8_t ofw_lid; uint8_t ofw_rsvd1[3]; uint32_t ofw_nents; ocp_fwact_entry_t ofw_hist[20]; uint8_t ofw_rsvd1288[2790]; /* * V1.0: 1, V2.0: 1 */ uint16_t ofw_vers; /* * Log Page GUID: 3AC8AB24DE2A3F6DAB4769A796Dh. */ uint8_t ofw_guid[16]; } ocp_vul_fwact_t; /* * Latency Monitor log. Added in V2.0. */ typedef struct { uint32_t obc_read; uint32_t obc_write; uint32_t obc_dealloc; uint32_t obc_rsvd; } ocp_lat_bkt_ctr_t; typedef struct { uint64_t ola_read; uint64_t ola_write; uint64_t ola_dealloc; } ocp_lat_alts_t; typedef struct { uint16_t olm_read; uint16_t olm_write; uint16_t olm_dealloc; } ocp_lat_aml_t; typedef struct { /* * Latency monitor features. See ocp_lat_lmfs_t. */ uint8_t ol_lmfs; uint8_t ol_rsvd1[1]; /* * Active bucket timer, its threshold, and general thresholds. */ uint16_t ol_abt; uint16_t ol_abt_thresh; uint8_t ol_thresh_a; uint8_t ol_thresh_b; uint8_t ol_thresh_c; uint8_t ol_thresh_d; /* * Active latency configuration. See ocp_lat_alc_t. */ uint16_t ol_alc; uint8_t ol_alw_min; uint8_t ol_rsvd13[19]; /* * Active bucket counters. */ ocp_lat_bkt_ctr_t ol_ctr0; ocp_lat_bkt_ctr_t ol_ctr1; ocp_lat_bkt_ctr_t ol_ctr2; ocp_lat_bkt_ctr_t ol_ctr3; /* * Active Latency Stamps. These contain 64-bit timestamps for when * events occurred. Grouped by bucket. */ ocp_lat_alts_t ol_ts0; ocp_lat_alts_t ol_ts1; ocp_lat_alts_t ol_ts2; ocp_lat_alts_t ol_ts3; /* * Active Measured Latency. Grouped by bucket. */ ocp_lat_aml_t ol_aml0; ocp_lat_aml_t ol_aml1; ocp_lat_aml_t ol_aml2; ocp_lat_aml_t ol_aml3; uint16_t ol_als_units; uint8_t ol_rsvd218[22]; /* * Static versions of everything above. */ ocp_lat_bkt_ctr_t ol_sb0; ocp_lat_bkt_ctr_t ol_sb1; ocp_lat_bkt_ctr_t ol_sb2; ocp_lat_bkt_ctr_t ol_sb3; ocp_lat_alts_t ol_sts0; ocp_lat_alts_t ol_sts1; ocp_lat_alts_t ol_sts2; ocp_lat_alts_t ol_sts3; ocp_lat_aml_t ol_saml0; ocp_lat_aml_t ol_saml1; ocp_lat_aml_t ol_saml2; ocp_lat_aml_t ol_saml3; uint16_t ol_als_sunits; uint8_t ol_rsvd426[10]; /* * Debug log related fields. The number of dword fields is specific to * v2.5. */ uint8_t ol_dbg_ndw[12]; uint16_t ol_dbg_trig; uint16_t ol_dbg_ml; uint64_t ol_dbg_ts; uint16_t ol_dbg_ptr; uint16_t ol_dbg_src; uint8_t ol_dbg_units; uint8_t ol_rsvd465[29]; /* * V2.0: 1, V2.5: 4 */ uint16_t ol_vers; /* * Log page GUID: 85D45E58D4E643709C6C84D08CC07A92h. */ uint8_t ol_guid[16]; } ocp_vul_lat_t; typedef enum { OPC_LOG_LAT_F_LFMS_EN = 1 << 0, OPC_LOG_LAT_F_LFMS_ALC_SUP = 1 << 1, OPC_LOG_LAT_F_LFMS_AML_SUP = 1 << 2, } ocp_lat_lmfs_t; typedef enum { OCP_LOG_LAT_F_ALC_B0_READ = 1 << 0, OCP_LOG_LAT_F_ALC_B0_WRITE = 1 << 1, OCP_LOG_LAT_F_ALC_B0_DEALLOC = 1 << 2, OCP_LOG_LAT_F_ALC_B1_READ = 1 << 3, OCP_LOG_LAT_F_ALC_B1_WRITE = 1 << 4, OCP_LOG_LAT_F_ALC_B1_DEALLOC = 1 << 5, OCP_LOG_LAT_F_ALC_B2_READ = 1 << 6, OCP_LOG_LAT_F_ALC_B2_WRITE = 1 << 7, OCP_LOG_LAT_F_ALC_B2_DEALLOC = 1 << 8, OCP_LOG_LAT_F_ALC_B3_READ = 1 << 9, OCP_LOG_LAT_F_ALC_B3_WRITE = 1 << 10, OCP_LOG_LAT_F_ALC_B3_DEALLOC = 1 << 11 } ocp_lat_alc_t; /* * Device Capabilities Log. Introduced in v2.0. */ typedef struct { #ifdef _BIT_FIELDS_LTOH uint8_t odp_nps:5; uint8_t odp_rsvd5:2; uint8_t odp_valid:1; #else uint8_t odp_valid:1; uint8_t odp_rsvd5:2; uint8_t odp_nps:5; #endif /* _BIT_FIELDS_LTOH */ } ocp_dssd_ps_t; typedef struct { uint16_t odc_nports; uint16_t odc_oob_sup; uint16_t odc_wz_sup; uint16_t odc_san_sup; uint16_t odc_dsmgmt_sup; uint16_t odc_wunc_sup; uint16_t odc_fuse_sup; uint16_t odc_dssd_min_valid; ocp_dssd_ps_t odc_dssd[128]; uint8_t odc_rsvd144[3934]; /* * V2.0: 1, V2.5: 1 */ uint16_t odc_vers; /* * Log page GUID: B7053C914B58495D98C9E1D10D054297h */ uint8_t odc_guid[16]; } ocp_vul_devcap_t; typedef enum { /* PCIe VDM Supported */ OCP_LOG_DEVCAP_F_OOB_VDM = 1 << 0, /* NVMe Basic Management Command supported */ OCP_LOG_DEVCAP_F_OOB_BMC = 1 << 1, /* Passed compliance testing */ OCP_LOG_DEVCAP_F_OOB_COMPLY = 1 << 15, } ocp_devcap_oob_t; typedef enum { /* Write Zeros command supported */ OCP_LOG_DEVCAP_F_WZ_SUP = 1 << 0, /* Write Zeros deallocate bit */ OCP_LOG_DEVCAP_F_WZ_DEAC = 1 << 1, /* Write Zeros force unit access */ OCP_LOG_DEVCAP_F_WZ_FUA = 1 << 2, /* Adheres to spec req NVME-IO-5 */ OCP_LOG_DEVCAP_F_WZ_IO5 = 1 << 3, /* Adheres to spec req NVME-IO-6 */ OCP_LOG_DEVCAP_F_WZ_IO6 = 1 << 4, /* Passed compliance testing */ OCP_LOG_DEVCAP_F_WZ_COMPLY = 1 << 15 } ocp_devcap_wz_t; typedef enum { /* Dataset Management command supported */ OCP_LOG_DEVCAP_F_DSMGMT_SUP = 1 << 0, /* Attribute deallocate supported */ OCP_LOG_DEVCAP_F_DSMGMT_AD = 1 << 1, /* Passed compliance testing */ OCP_LOG_DEVCAP_F_DSMGMT_COMPLY = 1 << 15 } ocp_devcap_dsmgmt_t; typedef enum { /* Write uncorrectable supported */ OCP_LOG_DEVCAP_F_WUNC_SUP = 1 << 0, /* Works with a single LBA */ OCP_LOG_DEVCAP_F_WUNC_ONE = 1 << 1, /* Works with max LBAs per NVMe spec */ OCP_LOG_DEVCAP_F_WUNC_MAX = 1 << 2, /* Adheres to spec req NVME-IO-14 */ OCP_LOG_DEVCAP_F_WUNC_IO14 = 1 << 3, /* Passed compliance testing */ OCP_LOG_DEVCAP_F_WUNC_COMPLY = 1 << 15 } ocp_devcap_wunc_t; typedef enum { /* Fused operation supported */ OCP_LOG_DEVCAP_F_FUSE_SUP = 1 << 0, /* Passed compliance testing */ OCP_LOG_DEVCAP_F_FUSE_COMPLY = 1 << 15 } ocp_devcap_fuse_t; /* * Unsupported Requirements log. This log is structured such that each * unimplemented requirement must fit into a single 16 byte array which should * be padded with zeros (but nothing in the spec suggests it guarantees * termination). We keep the requirements string as a uint8_t as opposed to a * char to indicate that this should not be trusted and must be parsed. */ typedef struct { uint8_t ors_str[16]; } ocp_req_str_t; typedef struct { uint16_t our_nunsup; uint8_t our_rsvd2[14]; ocp_req_str_t ors_reqs[253]; uint8_t our_rsvd4064[14]; /* * V2.0: 1, V2.5: 1 */ uint16_t our_vers; /* * Log page GUID: C7BB98B7D0324863BB2C23990E9C722Fh */ uint8_t our_guid[16]; } ocp_vul_unsup_req_t; /* * Our current version of smatch cannot handle packed structures. */ #ifndef __CHECKER__ CTASSERT(sizeof (ocp_vul_smart_t) == 512); CTASSERT(offsetof(ocp_vul_smart_t, osh_therm_event) == 96); CTASSERT(offsetof(ocp_vul_smart_t, osh_vers) == 494); CTASSERT(sizeof (ocp_vul_errrec_t) == 512); CTASSERT(offsetof(ocp_vul_errrec_t, oer_npanic) == 31); CTASSERT(offsetof(ocp_vul_errrec_t, oer_npanic) == 31); CTASSERT(sizeof (ocp_fwact_entry_t) == 64); CTASSERT(offsetof(ocp_fwact_entry_t, ofe_rsvd50) == 50); CTASSERT(sizeof (ocp_vul_fwact_t) == 4096); CTASSERT(offsetof(ocp_vul_fwact_t, ofw_rsvd1288) == 1288); CTASSERT(offsetof(ocp_vul_fwact_t, ofw_vers) == 4078); CTASSERT(sizeof (ocp_lat_bkt_ctr_t) == 16); CTASSERT(sizeof (ocp_lat_alts_t) == 24); CTASSERT(sizeof (ocp_lat_aml_t) == 6); CTASSERT(offsetof(ocp_vul_lat_t, ol_aml0) == 192); CTASSERT(offsetof(ocp_vul_lat_t, ol_rsvd218) == 218); CTASSERT(offsetof(ocp_vul_lat_t, ol_als_sunits) == 424); CTASSERT(sizeof (ocp_vul_lat_t) == 512); CTASSERT(sizeof (ocp_vul_devcap_t) == 4096); CTASSERT(offsetof(ocp_vul_devcap_t, odc_rsvd144) == 144); CTASSERT(sizeof (ocp_req_str_t) == 16); CTASSERT(sizeof (ocp_vul_unsup_req_t) == 4096); #endif #pragma pack() /* pack(1) */ #ifdef __cplusplus } #endif #endif /* _SYS_NVME_OCP_H */