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Diffstat (limited to 'src/nvme/nbft.h')
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diff --git a/src/nvme/nbft.h b/src/nvme/nbft.h new file mode 100644 index 0000000..6012e16 --- /dev/null +++ b/src/nvme/nbft.h @@ -0,0 +1,1238 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * This file is part of libnvme. + * Copyright (c) 2021-2022, Dell Inc. or its subsidiaries. All Rights Reserved. + * + * Authors: Stuart Hayes <Stuart_Hayes@Dell.com> + * + */ +#ifndef _NBFT_H +#define _NBFT_H + +#include <sys/types.h> +#include "util.h" + +/* + * ACPI NBFT table structures (TP8012 Boot Specification rev. 1.0) + */ + +/** + * enum nbft_desc_type - NBFT Elements - Descriptor Types (Figure 5) + * @NBFT_DESC_HEADER: Header: an ACPI structure header with some additional + * NBFT specific info. + * @NBFT_DESC_CONTROL: Control Descriptor: indicates the location of host, + * HFI, SSNS, security, and discovery descriptors. + * @NBFT_DESC_HOST: Host Descriptor: host information. + * @NBFT_DESC_HFI: HFI Descriptor: an indexable table of HFI Descriptors, + * one for each fabric interface on the host. + * @NBFT_DESC_SSNS: Subsystem Namespace Descriptor: an indexable table + * of SSNS Descriptors. + * @NBFT_DESC_SECURITY: Security Descriptor: an indexable table of Security + * descriptors. + * @NBFT_DESC_DISCOVERY: Discovery Descriptor: an indexable table of Discovery + * Descriptors. + * @NBFT_DESC_HFI_TRINFO: HFI Transport Descriptor: indicated by an HFI Descriptor, + * corresponds to a specific transport for a single HFI. + * @NBFT_DESC_RESERVED_8: Reserved. + * @NBFT_DESC_SSNS_EXT_INFO: SSNS Extended Info Descriptor: indicated by an SSNS + * Descriptor if required. + */ +enum nbft_desc_type { + NBFT_DESC_HEADER = 0, + NBFT_DESC_CONTROL = 1, + NBFT_DESC_HOST = 2, + NBFT_DESC_HFI = 3, + NBFT_DESC_SSNS = 4, + NBFT_DESC_SECURITY = 5, + NBFT_DESC_DISCOVERY = 6, + NBFT_DESC_HFI_TRINFO = 7, + NBFT_DESC_RESERVED_8 = 8, + NBFT_DESC_SSNS_EXT_INFO = 9, +}; + +/** + * enum nbft_trtype - NBFT Interface Transport Types (Figure 7) + * @NBFT_TRTYPE_TCP: NVMe/TCP (802.3 + TCP/IP). String Designator "tcp". + */ +enum nbft_trtype { + NBFT_TRTYPE_TCP = 3, +}; + +#define NBFT_HEADER_SIG "NBFT" + +/** + * struct nbft_heap_obj - NBFT Header Driver Signature + * @offset: Offset in bytes of the heap object, if any, from byte offset 0h + * of the NBFT Table Header. + * @length: Length in bytes of the heap object, if any. + */ +struct nbft_heap_obj { + __le32 offset; + __le16 length; +} __attribute__((packed)); + +/** + * struct nbft_header - NBFT Table - Header (Figure 8) + * @signature: Signature: An ASCII string representation of the table + * identifier. This field shall be set to the value 4E424654h + * (i.e. "NBFT", see #NBFT_HEADER_SIG). + * @length: Length: The length of the table, in bytes, including the + * header, starting from offset 0h. This field is used to record + * the size of the entire table. + * @major_revision: Major Revision: The major revision of the structure + * corresponding to the Signature field. Larger major revision + * numbers should not be assumed backward compatible to lower + * major revision numbers with the same signature. + * @checksum: Checksum: The entire table, including the Checksum field, + * shall sum to 0h to be considered valid. + * @oem_id: OEMID shall be populated by the NBFT driver writer by + * an OEM-supplied string that identifies the OEM. All + * trailing bytes shall be NULL. + * @oem_table_id: OEM Table ID: This field shall be populated by the NBFT + * driver writer with an OEM-supplied string that the OEM + * uses to identify the particular data table. This field is + * particularly useful when defining a definition block to + * distinguish definition block functions. The OEM assigns + * each dissimilar table a new OEM Table ID. + * @oem_revision: OEM Revision: An OEM-supplied revision number. Larger + * numbers are assumed to be newer revisions. + * @creator_id: Creator ID: Vendor ID of utility that created the table. + * For instance, this may be the ID for the ASL Compiler. + * @creator_revision: Creator Revision: Revision of utility that created the + * table. For instance, this may be the ID for the ASL Compiler. + * @heap_offset: Heap Offset (HO): This field indicates the offset in bytes + * of the heap, if any, from byte offset 0h of the NBFT + * Table Header. + * @heap_length: Heap Length (HL): The length of the heap, if any. + * @driver_dev_path_sig: Driver Signature Heap Object Reference: This field indicates + * the offset in bytes of a heap object containing the Driver + * Signature, if any, from byte offset 0h of the NBFT Table + * Header. + * @minor_revision: Minor Revision: The minor revision of the structure + * corresponding to the Signature field. If the major revision + * numbers are the same, any minor revision number differences + * shall be backwards compatible with the same signature. + * @reserved: Reserved. + */ +struct nbft_header { + char signature[4]; + __le32 length; + __u8 major_revision; + __u8 checksum; + char oem_id[6]; + char oem_table_id[8]; + __le32 oem_revision; + __le32 creator_id; + __le32 creator_revision; + __le32 heap_offset; + __le32 heap_length; + struct nbft_heap_obj driver_dev_path_sig; + __u8 minor_revision; + __u8 reserved[13]; +}; + +/** + * struct nbft_control - NBFT Table - Control Descriptor (Figure 8) + * @structure_id: Structure ID: This field specifies the element (refer to + * &enum nbft_desc_type). This field shall be set to 1h (i.e., + * Control, #NBFT_DESC_CONTROL). + * @major_revision: Major Revision: The major revision of the structure corresponding + * to the Signature field. Larger major revision numbers should + * not be assumed backward compatible to lower major revision + * numbers with the same signature. + * @minor_revision: Minor Revision: The minor revision of the structure corresponding + * to the signature field. If the major revision numbers are + * the same, any minor revision number differences shall be backwards + * compatible with the same signature. + * @reserved1: Reserved. + * @csl: Control Structure Length (CSL): This field indicates the length + * in bytes of the Control Descriptor. + * @flags: Flags, see &enum nbft_control_flags. + * @reserved2: Reserved. + * @hdesc: Host Descriptor (HDESC): This field indicates the location + * and length of the Host Descriptor (see &struct nbft_host). + * @hsv: Host Descriptor Version (HSV): This field indicates the version + * of the Host Descriptor. + * @reserved3: Reserved. + * @hfio: HFI Descriptor List Offset (HFIO): If this field is set to + * a non-zero value, then this field indicates the offset in bytes + * of the HFI Descriptor List, if any, from byte offset 0h of the + * NBFT Table Header. If the @num_hfi field is cleared to 0h, + * then this field is reserved. + * @hfil: HFI Descriptor Length (HFIL): This field indicates the length + * in bytes of each HFI Descriptor, if any. If the @num_hfi field + * is cleared to 0h, then this field is reserved. + * @hfiv: HFI Descriptor Version (HFIV): This field indicates the version + * of each HFI Descriptor. + * @num_hfi: Number of Host Fabric Interface Descriptors (NumHFI): This field + * indicates the number of HFI Descriptors (see &struct nbft_hfi) + * in the HFI Descriptor List, if any. If no interfaces have been + * configured, then this field shall be cleared to 0h. + * @ssnso: SSNS Descriptor List Offset (SSNSO):: This field indicates + * the offset in bytes of the SSNS Descriptor List, if any, from + * byte offset 0h of the NBFT Table Header. If the @num_ssns field + * is cleared to 0h, then this field is reserved. + * @ssnsl: SSNS Descriptor Length (SSNSL): This field indicates the length + * in bytes of each SSNS Descriptor, if any. If the @num_ssns + * field is cleared to 0h, then this field is reserved. + * @ssnsv: SSNS Descriptor Version (SSNSV): This field indicates the version + * of the SSNS Descriptor. + * @num_ssns: Number of Subsystem and Namespace Descriptors (NumSSNS): This + * field indicates the number of Subsystem Namespace (SSNS) + * Descriptors (see &struct nbft_ssns) in the SSNS Descriptor List, + * if any. + * @seco: Security Profile Descriptor List Offset (SECO): This field + * indicates the offset in bytes of the Security Profile Descriptor + * List, if any, from byte offset 0h of the NBFT Table Header. + * If the @num_sec field is cleared to 0h, then this field + * is reserved. + * @secl: Security Profile Descriptor Length (SECL): This field indicates + * the length in bytes of each Security Profile Descriptor, if any. + * If the @num_sec field is cleared to 0h, then this field + * is reserved. + * @secv: Security Profile Descriptor Version (SECV): This field indicates + * the version of the Security Profile Descriptor. + * @num_sec: Number of Security Profile Descriptors (NumSec): This field + * indicates the number of Security Profile Descriptors + * (see &struct nbft_security), if any, in the Security Profile + * Descriptor List. + * @disco: Discovery Descriptor Offset (DISCO): This field indicates + * the offset in bytes of the Discovery Descriptor List, if any, + * from byte offset 0h of the NBFT Table Header. If the @num_disc + * field is cleared to 0h, then this field is reserved. + * @discl: Discovery Descriptor Length (DISCL): This field indicates + * the length in bytes of each Discovery Descriptor, if any. + * If the @num_disc field is cleared to 0h, then this field + * is reserved. + * @discv: Discovery Descriptor Version (DISCV): This field indicates + * the version of the Discovery Descriptor. + * @num_disc: Number of Discovery Descriptors (NumDisc): This field indicates + * the number of Discovery Descriptors (see &struct nbft_discovery), + * if any, in the Discovery Descriptor List, if any. + * @reserved4: Reserved. + */ +struct nbft_control { + __u8 structure_id; + __u8 major_revision; + __u8 minor_revision; + __u8 reserved1; + __le16 csl; + __u8 flags; + __u8 reserved2; + struct nbft_heap_obj hdesc; + __u8 hsv; + __u8 reserved3; + __le32 hfio; + __le16 hfil; + __u8 hfiv; + __u8 num_hfi; + __le32 ssnso; + __le16 ssnsl; + __u8 ssnsv; + __u8 num_ssns; + __le32 seco; + __le16 secl; + __u8 secv; + __u8 num_sec; + __le32 disco; + __le16 discl; + __u8 discv; + __u8 num_disc; + __u8 reserved4[16]; +}; + +/** + * enum nbft_control_flags - Control Descriptor Flags + * @NBFT_CONTROL_VALID: Block Valid: indicates that the structure is valid. + */ +enum nbft_control_flags { + NBFT_CONTROL_VALID = 1 << 0, +}; + +/** + * struct nbft_host - Host Descriptor (Figure 9) + * @structure_id: Structure ID: This field shall be set to 2h (i.e., + * Host Descriptor; #NBFT_DESC_HOST). + * @flags: Host Flags, see &enum nbft_host_flags. + * @host_id: Host ID: This field shall be set to the Host Identifier. This + * field shall not be empty if the NBFT and NVMe Boot are supported + * by the Platform. + * @host_nqn_obj: Host NQN Heap Object Reference: this field indicates a heap + * object containing a Host NQN. This object shall not be empty + * if the NBFT and NVMe Boot are supported by the Platform. + * @reserved: Reserved. + */ +struct nbft_host { + __u8 structure_id; + __u8 flags; + __u8 host_id[16]; + struct nbft_heap_obj host_nqn_obj; + __u8 reserved[8]; +}; + +/** + * enum nbft_host_flags - Host Flags + * @NBFT_HOST_VALID: Descriptor Valid: If set to 1h, then this + * descriptor is valid. If cleared to 0h, then + * this descriptor is reserved. + * @NBFT_HOST_HOSTID_CONFIGURED: HostID Configured: If set to 1h, then the + * Host ID field contains an administratively-configured + * value. If cleared to 0h, then the Host ID + * field contains a driver default value. + * @NBFT_HOST_HOSTNQN_CONFIGURED: Host NQN Configured: If set to 1h, then the + * Host NQN indicated by the Host NQN Heap Object + * Reference field (&struct nbft_host.host_nqn) + * contains an administratively-configured value. + * If cleared to 0h, then the Host NQN indicated + * by the Host NQN Offset field contains a driver + * default value. + * @NBFT_HOST_PRIMARY_ADMIN_MASK: Mask to get Primary Administrative Host Descriptor: + * indicates whether the Host Descriptor in this + * NBFT was selected as the primary NBFT for + * administrative purposes of platform identity + * as a hint to the OS. If multiple NBFT tables + * are present, only one NBFT should be administratively + * selected. There is no enforcement mechanism + * for this to be coordinated between multiple NBFT + * tables, but this field should be set to Selected + * (#NBFT_HOST_PRIMARY_ADMIN_SELECTED) if + * more than one NBFT is present. + * @NBFT_HOST_PRIMARY_ADMIN_NOT_INDICATED: Not Indicated by Driver: The driver that created + * this NBFT provided no administrative priority + * hint for this NBFT. + * @NBFT_HOST_PRIMARY_ADMIN_UNSELECTED: Unselected: The driver that created this NBFT + * explicitly indicated that this NBFT should + * not be prioritized over any other NBFT. + * @NBFT_HOST_PRIMARY_ADMIN_SELECTED: Selected: The driver that created this NBFT + * explicitly indicated that this NBFT should + * be prioritized over any other NBFT. + */ +enum nbft_host_flags { + NBFT_HOST_VALID = 1 << 0, + NBFT_HOST_HOSTID_CONFIGURED = 1 << 1, + NBFT_HOST_HOSTNQN_CONFIGURED = 1 << 2, + NBFT_HOST_PRIMARY_ADMIN_MASK = 0x18, + NBFT_HOST_PRIMARY_ADMIN_NOT_INDICATED = 0x00, + NBFT_HOST_PRIMARY_ADMIN_UNSELECTED = 0x08, + NBFT_HOST_PRIMARY_ADMIN_SELECTED = 0x10, +}; + +/** + * struct nbft_hfi - Host Fabric Interface (HFI) Descriptor (Figure 11) + * @structure_id: Structure ID: This field shall be set to 3h (i.e., Host Fabric + * Interface Descriptor; #NBFT_DESC_HFI). + * @index: HFI Descriptor Index: This field indicates the number of this + * HFI Descriptor in the Host Fabric Interface Descriptor List. + * @flags: HFI Descriptor Flags, see &enum nbft_hfi_flags. + * @trtype: HFI Transport Type, see &enum nbft_trtype. + * @reserved1: Reserved. + * @trinfo_obj: HFI Transport Info Descriptor Heap Object Reference: If this + * field is set to a non-zero value, then this field indicates + * the location and size of a heap object containing + * a HFI Transport Info. + * @reserved2: Reserved. + */ +struct nbft_hfi { + __u8 structure_id; + __u8 index; + __u8 flags; + __u8 trtype; + __u8 reserved1[12]; + struct nbft_heap_obj trinfo_obj; + __u8 reserved2[10]; +}; + +/** + * enum nbft_hfi_flags - HFI Descriptor Flags + * @NBFT_HFI_VALID: Descriptor Valid: If set to 1h, then this descriptor is valid. + * If cleared to 0h, then this descriptor is reserved. + */ +enum nbft_hfi_flags { + NBFT_HFI_VALID = 1 << 0, +}; + +/** + * struct nbft_hfi_info_tcp - HFI Transport Info Descriptor - NVMe/TCP (Figure 13) + * @structure_id: Structure ID: This field shall be set to 7h (i.e., + * HFI Transport Info; #NBFT_DESC_HFI_TRINFO). + * @version: Version: This field shall be set to 1h. + * @trtype: HFI Transport Type, see &enum nbft_trtype: This field + * shall be set to 03h (i.e., NVMe/TCP; #NBFT_TRTYPE_TCP). + * @trinfo_version: Transport Info Version: Implementations compliant to this + * specification shall set this field to 1h. + * @hfi_index: HFI Descriptor Index: The value of the HFI Descriptor Index + * field of the HFI Descriptor (see &struct nbft_hfi.index) + * whose HFI Transport Info Descriptor Heap Object Reference + * field indicates this HFI Transport Info Descriptor. + * @flags: HFI Transport Flags, see &enum nbft_hfi_info_tcp_flags. + * @pci_sbdf: PCI Express Routing ID for the HFI Transport Function: + * This field indicates the PCI Express Routing ID as specified + * in the PCI Express Base Specification. + * @mac_addr: MAC Address: The MAC address of this HFI, in EUI-48TM format, + * as defined in the IEEE Guidelines for Use of Extended Unique + * Identifiers. This field shall be set to a non-zero value. + * @vlan: VLAN: If this field is set to a non-zero value, then this + * field contains the VLAN identifier if the VLAN associated + * with this HFI, as defined in IEEE 802.1q-2018. If no VLAN + * is associated with this HFI, then this field shall be cleared + * to 0h. + * @ip_origin: IP Origin: If this field is set to a non-zero value, then + * this field indicates the source of Ethernet L3 configuration + * information used by the driver for this interface. Valid + * values are defined in the Win 32 API: NL_PREFIX_ORIGIN + * enumeration specification. This field should be cleared + * to 0h if the IP Origin field is unused by driver. + * @ip_address: IP Address: This field indicates the IPv4 or IPv6 address + * of this HFI. This field shall be set to a non-zero value. + * @subnet_mask_prefix: Subnet Mask Prefix: This field indicates the IPv4 or IPv6 + * subnet mask in CIDR routing prefix notation. + * @ip_gateway: IP Gateway: If this field is set to a non-zero value, this + * field indicates the IPv4 or IPv6 address of the IP gateway + * for this HFI. If this field is cleared to 0h, then + * no IP gateway is specified. + * @reserved1: Reserved. + * @route_metric: Route Metric: If this field is set to a non-zero value, + * this field indicates the cost value for the route indicated + * by this HF. This field contains the value utilized by the + * pre-OS driver when chosing among all available routes. Lower + * values relate to higher priority. Refer to IETF RFC 4249. + * If the pre-OS driver supports routing and did not configure + * a specific route metric for this interface, then the pre-OS + * driver should set this value to 500. If the pre-OS driver + * does not support routing, then this field should be cleared + * to 0h. + * @primary_dns: Primary DNS: If this field is set to a non-zero value, + * this field indicates the IPv4 or IPv6 address of the + * Primary DNS server for this HFI, if any, from byte offset + * 0h of the NBFT Table Header. If this field is cleared to 0h, + * then no Primary DNS is specified. + * @secondary_dns: Secondary DNS: If this field is set to a non-zero value, + * this field indicates the IPv4 or IPv6 address of + * the Secondary DNS server for this HFI, if any, from byte + * offset 0h of the NBFT Table Header. If this field is + * cleared to 0h, then no Secondary DNS is specified. + * @dhcp_server: DHCP Server: If the DHCP Override bit is set to 1h, then + * this field indicates the IPv4 or IPv6 address of the DHCP + * server used to assign this HFI address. If that bit is + * cleared to 0h, then this field is reserved. + * @host_name_obj: Host Name Heap Object Reference: If this field is set + * to a non-zero value, then this field indicates the location + * and size of a heap object containing a Host Name string. + * @reserved2: Reserved. + */ +struct nbft_hfi_info_tcp { + __u8 structure_id; + __u8 version; + __u8 trtype; + __u8 trinfo_version; + __le16 hfi_index; + __u8 flags; + __le32 pci_sbdf; + __u8 mac_addr[6]; + __le16 vlan; + __u8 ip_origin; + __u8 ip_address[16]; + __u8 subnet_mask_prefix; + __u8 ip_gateway[16]; + __u8 reserved1; + __le16 route_metric; + __u8 primary_dns[16]; + __u8 secondary_dns[16]; + __u8 dhcp_server[16]; + struct nbft_heap_obj host_name_obj; + __u8 reserved2[18]; +} __attribute__((packed)); + +/** + * enum nbft_hfi_info_tcp_flags - HFI Transport Flags + * @NBFT_HFI_INFO_TCP_VALID: Descriptor Valid: if set to 1h, then this + * descriptor is valid. If cleared to 0h, then + * this descriptor is reserved. + * @NBFT_HFI_INFO_TCP_GLOBAL_ROUTE: Global Route vs. Link Local Override Flag: + * if set to 1h, then the BIOS utilized this + * interface described by HFI to be the default + * route with highest priority. If cleared to 0h, + * then routes are local to their own scope. + * @NBFT_HFI_INFO_TCP_DHCP_OVERRIDE: DHCP Override: if set to 1, then HFI information + * was populated by consuming the DHCP on this + * interface. If cleared to 0h, then the HFI + * information was set administratively by + * a configuration interface to the driver and + * pre-OS envrionment. + */ +enum nbft_hfi_info_tcp_flags { + NBFT_HFI_INFO_TCP_VALID = 1 << 0, + NBFT_HFI_INFO_TCP_GLOBAL_ROUTE = 1 << 1, + NBFT_HFI_INFO_TCP_DHCP_OVERRIDE = 1 << 2, +}; + +/** + * struct nbft_ssns - Subsystem Namespace (SSNS) Descriptor (Figure 15) + * @structure_id: Structure ID: This field shall be set to 4h + * (i.e., SSNS; #NBFT_DESC_SSNS). + * @index: SSNS Descriptor Index: This field indicates the number + * of this Subsystem Namespace Descriptor in the + * Subsystem Namespace Descriptor List. + * @flags: SSNS Flags, see &enum nbft_ssns_flags. + * @trtype: Transport Type, see &enum nbft_trtype. + * @trflags: Transport Specific Flags, see &enum nbft_ssns_trflags. + * @primary_discovery_ctrl_index: Primary Discovery Controller Index: The Discovery + * Descriptor Index field of the Discovery Descriptor + * (see &struct nbft_discovery) that is associated with + * this SSNS Descriptor. If a Discovery controller was + * used to establish this record this value shall + * be set to a non-zero value. If this namespace was + * associated with multiple Discovery controllers, + * those Discovery controllers shall have records + * in the Discovery Descriptor to facilitate multi-path + * rediscovery as required. If no Discovery controller + * was utilized to inform this namespace record, + * this field shall be cleared to 0h. + * @reserved1: Reserved. + * @subsys_traddr_obj: Subsystem Transport Address Heap Object Reference: + * This field indicates the location and size of a heap + * object containing the Subsystem Transport Address. + * For IP based transports types, shall be an IP Address. + * @subsys_trsvcid_obj: Subsystem Transport Service Identifier Heap Object Reference: + * This field indicates the location and size of a heap + * object containing an array of bytes indicating + * the Subsystem Transport Service Identifier. + * See &enum nbft_trtype. + * @subsys_port_id: Subsystem Port ID: Port in the NVM subsystem + * associated with this transport address used by + * the pre-OS driver. + * @nsid: Namespace ID: This field indicates the namespace + * identifier (NSID) of the namespace indicated by + * this descriptor. This field shall be cleared to 0h + * if not specified by the user. If this value is cleared + * to 0h, then consumers of the NBFT shall rely + * on the NID. + * @nidt: Namespace Identifier Type (NIDT): This field + * contains the value of the Namespace Identifier Type (NIDT) + * field in the Namespace Identification Descriptor + * for the namespace indicated by this descriptor. + * If a namespace supports multiple NIDT entries + * for uniqueness, the order of preference is NIDT field + * value of 3h (i.e., UUID) before 2h (i.e., NSGUID), + * and 2h before 1h (i.e., EUI-64). + * @nid: Namespace Identifier (NID): This field contains + * the value of the Namespace Identifier (NID) field + * in the Namespace Identification Descriptor for + * the namespace indicated by this descriptor. + * @security_desc_index: Security Profile Descriptor Index: If the Use Security + * Flag bit in the SSNS Flags field is set to 1h, then + * this field indicates the value of the Security Profile + * Descriptor Index field of the Security Profile + * Descriptor (see &struct nbft_security) associated + * with this namespace. If the Use Security Flag bit + * is cleared to 0h, then no Security Profile Descriptor + * is associated with this namespace and this field + * is reserved. + * @primary_hfi_desc_index: Primary HFI Descriptor Index: This field indicates + * the value of the HFI Descriptor Index field of the + * HFI Descriptor (see &struct nbft_hfi) for the + * interface associated with this namespace. If multiple + * HFIs are associated with this record, subsequent + * interfaces should be populated in the Secondary + * HFI Associations field. + * @reserved2: Reserved. + * @secondary_hfi_assoc_obj: Secondary HFI Associations Heap Object Reference: + * If this field is set to a non-zero value, then + * this field indicates an array of bytes, in which + * each byte contains the value of the HFI Descriptor + * Index field of an HFI Descriptor in the HFI Descriptor + * List. If this field is cleared to 0h, then no + * secondary HFI associations are specified. + * @subsys_ns_nqn_obj: Subsystem and Namespace NQN Heap Object Reference: + * This field indicates the location and size of + * a heap object containing the Subsystem and Namespace NQN. + * @ssns_extended_info_desc_obj: SSNS Extended Information Descriptor Heap Object + * Reference: If the SSNS Extended Info In-use Flag + * bit is set to 1h, then this field indicates the + * offset in bytes of a heap object containing an + * SSNS Extended Information Descriptor + * (see &struct nbft_ssns_ext_info) heap object + * from byte offset 0h of the NBFT Table Header. + * If the SSNS Extended Info In-use Flag bit is cleared + * to 0h, then this field is reserved. + * @reserved3: Reserved. + */ +struct nbft_ssns { + __u8 structure_id; + __le16 index; + __le16 flags; + __u8 trtype; + __le16 trflags; + __u8 primary_discovery_ctrl_index; + __u8 reserved1; + struct nbft_heap_obj subsys_traddr_obj; + struct nbft_heap_obj subsys_trsvcid_obj; + __le16 subsys_port_id; + __le32 nsid; + __u8 nidt; + __u8 nid[16]; + __u8 security_desc_index; + __u8 primary_hfi_desc_index; + __u8 reserved2; + struct nbft_heap_obj secondary_hfi_assoc_obj; + struct nbft_heap_obj subsys_ns_nqn_obj; + struct nbft_heap_obj ssns_extended_info_desc_obj; + __u8 reserved3[62]; +} __attribute__((packed)); + +/** + * enum nbft_ssns_flags - Subsystem and Namespace Specific Flags Field (Figure 16) + * @NBFT_SSNS_VALID: Descriptor Valid: If set to 1h, then this descriptor + * is valid. If cleared to 0h, then this descriptor + * is not valid. A host that supports NVMe-oF Boot, + * but does not currently have a remote Subsystem + * and Namespace assigned may clear this bit to 0h. + * @NBFT_SSNS_NON_BOOTABLE_ENTRY: Non-bootable Entry Flag: If set to 1h, this flag + * indicates that this SSNS Descriptor contains + * a namespace of administrative purpose to the boot + * process, but the pre-OS may not have established + * connectivity to or evaluated the contents of this + * Descriptor. Such namespaces may contain supplemental + * data deemed relevant by the Administrator as part + * of the pre-OS to OS hand off. This may include + * properties such as a UEFI device path that may + * not have been created for this namespace. This means + * an OS runtime may still require the contents + * of such a namespace to complete later stages + * of boot. If cleared to 0h, then this namespace did + * not have any special administrative intent. + * @NBFT_SSNS_USE_SECURITY_FIELD: Use Security Flag: If set to 1h, then there is + * a Security Profile Descriptor associated with this + * SSNS record and the Security Profile Descriptor Index + * field is valid. If cleared to 0h, then there is + * no Security Profile Descriptor associated with this + * SSNS record and the Security Profile Descriptor Index + * field is not valid. + * @NBFT_SSNS_DHCP_ROOT_PATH_OVERRIDE: DHCP Root-Path Override Flag: If set to 1h, then + * this SSNS descriptor was populated by consuming + * the DHCP Root-Path on this interface. If cleared + * to 0h, then the DHCP Root-Path was not used + * in populating the SSNS descriptor. + * @NBFT_SSNS_EXTENDED_INFO_IN_USE: SSNS Extended Info In-use Flag: If set to 1h, + * then the SSNS Extended Information Offset field + * and the SSNS Extended Information Length field + * are valid. This flag, if set to 1h, indicates + * that a Subsystem and Namespace Extended Information + * Descriptor corresponding to this descriptor is present. + * @NBFT_SSNS_SEPARATE_DISCOVERY_CTRL: Separate Discovery Controller Flag: If set to 1h, + * then the Discovery controller associated with + * this volume is on a different transport address + * than the specified in the Subsystem Transport + * Address Heap Object Reference. If cleared to 0h, + * then the Discovery controller is the same as the + * Subsystem Transport Address Heap Object Reference. + * @NBFT_SSNS_DISCOVERED_NAMESPACE: Discovered Namespace Flag: If set to 1h, then + * this namespace was acquired through discovery. + * If cleared to 0h, then this namespace was + * explicitly configured in the system. + * @NBFT_SSNS_UNAVAIL_NAMESPACE_MASK: Mask to get Unavailable Namespace Flag: This + * field indicates the availability of the namespace + * at a specific point in time. Such use is only + * a hint and its use does not guarantee the availability + * of that referenced namespace at any future point in time. + * @NBFT_SSNS_UNAVAIL_NAMESPACE_NOTIND: Not Indicated by Driver: No information is provided. + * @NBFT_SSNS_UNAVAIL_NAMESPACE_AVAIL: Available: A referenced namespace described by this + * flag was previously accessible by the pre-OS driver. + * @NBFT_SSNS_UNAVAIL_NAMESPACE_UNAVAIL: Unavailable: This namespace was administratively + * configured but unattempted, unavailable or + * inaccessible when establishing connectivity + * by the pre-OS driver. + */ +enum nbft_ssns_flags { + NBFT_SSNS_VALID = 1 << 0, + NBFT_SSNS_NON_BOOTABLE_ENTRY = 1 << 1, + NBFT_SSNS_USE_SECURITY_FIELD = 1 << 2, + NBFT_SSNS_DHCP_ROOT_PATH_OVERRIDE = 1 << 3, + NBFT_SSNS_EXTENDED_INFO_IN_USE = 1 << 4, + NBFT_SSNS_SEPARATE_DISCOVERY_CTRL = 1 << 5, + NBFT_SSNS_DISCOVERED_NAMESPACE = 1 << 6, + NBFT_SSNS_UNAVAIL_NAMESPACE_MASK = 0x0180, + NBFT_SSNS_UNAVAIL_NAMESPACE_NOTIND = 0x0000, + NBFT_SSNS_UNAVAIL_NAMESPACE_AVAIL = 0x0080, + NBFT_SSNS_UNAVAIL_NAMESPACE_UNAVAIL = 0x0100, +}; + +/** + * enum nbft_ssns_trflags - SSNS Transport Specific Flags Field (Figure 17) + * @NBFT_SSNS_TRFLAG_VALID: Transport Specific Flags in Use: If set to 1h, then + * this descriptor is valid. If cleared to 0h, then + * this descriptor is not valid. + * @NBFT_SSNS_PDU_HEADER_DIGEST: PDU Header Digest (HDGST) Flag: If set to 1h, then + * the host or administrator required the connection + * described by this Subsystem and Namespace Descriptor + * to use the NVM Header Digest Enabled. A consumer + * of this information should attempt to use NVM Header + * Digest when recreating this connection if enabled. + * If cleared to 0h, then the host or administrator + * did not require the connection described by this + * Subsystem and Namespace Descriptor to use the + * NVM Header Digest Enabled. + * @NBFT_SSNS_DATA_DIGEST: Data Digest (DDGST) Flag: If set to 1h, then + * the host or administrator required the connection + * described by this Subsystem and Namespace Descriptor + * to use the NVM Data Digest Enabled. If cleared + * to 0h, then the host or administrator did not + * require the connection described by this Subsystem + * and Namespace Descriptor to use the NVM Data Digest + * Enabled. A consumer of this field should attempt + * to use NVM Data Digest when recreating this + * connection if enabled. + */ +enum nbft_ssns_trflags { + NBFT_SSNS_TRFLAG_VALID = 1 << 0, + NBFT_SSNS_PDU_HEADER_DIGEST = 1 << 1, + NBFT_SSNS_DATA_DIGEST = 1 << 2, +}; + +/** + * struct nbft_ssns_ext_info - Subsystem and Namespace Extended Information + * Descriptor (Figure 19) + * @structure_id: Structure ID: This field shall be set to 9h + * (i.e., SSNS Extended Info; #NBFT_DESC_SSNS_EXT_INFO). + * @version: Version: This field shall be set to 1h. + * @ssns_index: SSNS Descriptor Index: This field indicates the value + * of the SSNS Descriptor Index field of the Subsystem + * and Namespace Descriptor (see &struct nbft_ssns) whose + * SSNS Extended Information Descriptor Heap Object + * Reference field indicates this descriptor. + * @flags: Flags, see &enum nbft_ssns_ext_info_flags. + * @cntlid: Controller ID: The controller identifier of the first + * controller associated with the Admin Queue by the driver. + * If a controller identifier is not administratively + * specified or direct configuration is not supported + * by the driver, then this field shall be cleared to 0h. + * @asqsz: Admin Submission Queue Size (ASQSZ): The Admin Submission + * Queue Size utilized for the respective SSNS by the driver. + * @dhcp_root_path_str_obj: DHCP Root Path String Heap Object Reference: If the + * SSNS DHCP Root Path Override (#NBFT_SSNS_DHCP_ROOT_PATH_OVERRIDE) + * flag bit is set to 1h, then this field indicates + * the offset in bytes of a heap object containing + * an DHCP Root Path String used by the driver. If the + * SNSS DHCP Root Path Override flag bit is cleared to 0h, + * then this field is reserved. + */ +struct nbft_ssns_ext_info { + __u8 structure_id; + __u8 version; + __le16 ssns_index; + __le32 flags; + __le16 cntlid; + __le16 asqsz; + struct nbft_heap_obj dhcp_root_path_str_obj; +} __attribute__((packed)); + +/** + * enum nbft_ssns_ext_info_flags - Subsystem and Namespace Extended Information + * Descriptor Flags + * @NBFT_SSNS_EXT_INFO_VALID: Descriptor Valid: If set to 1h, then this descriptor + * is valid. If cleared to 0h, then this descriptor + * is reserved. + * @NBFT_SSNS_EXT_INFO_ADMIN_ASQSZ: Administrative ASQSZ: If set to 1h, then the value + * of the ASQSZ field was provided by administrative + * configuration for this SSNS record. If cleared + * to 0h, then the value of the ASQSZ field was + * either obtained by discovery or assumed + * by the driver. + */ +enum nbft_ssns_ext_info_flags { + NBFT_SSNS_EXT_INFO_VALID = 1 << 0, + NBFT_SSNS_EXT_INFO_ADMIN_ASQSZ = 1 << 1, +}; + +/** + * struct nbft_security - Security Profile Descriptor (Figure 21) + * @structure_id: Structure ID: This field shall be set to 5h + * (i.e., Security; #NBFT_DESC_SECURITY). + * @index: Security Profile Descriptor Index: This field indicates + * the number of this Security Profile Descriptor in the + * Security Profile Descriptor List. + * @flags: Security Profile Descriptor Flags, see &enum nbft_security_flags. + * @secret_type: Secret Type, see &enum nbft_security_secret_type. + * @reserved1: Reserved. + * @sec_chan_alg_obj: Secure Channel Algorithm Heap Object Reference: If the + * Security Policy List field is set to 1h, then this field + * indicates the location and size of a heap object containing + * a list of secure channel algorithms. The list is an array + * of bytes and the values are defined in the Security Type + * (SECTYPE) field in the Transport Specific Address Subtype + * Definition in the NVMe TCP Transport Specification. + * If the Security Policy List field is cleared to 0h, then + * this field is reserved. + * @auth_proto_obj: Authentication Protocols Heap Object Reference: If the + * Authentication Policy List field is set to 1h, then this + * field indicates the location and size of a heap object + * containing a list of authentication protocol identifiers. + * If the Authentication Policy List field is cleared to 0h, + * then this field is reserved. + * @cipher_suite_obj: Cipher Suite Offset Heap Object Reference: If the Cipher + * Suites Restricted by Policy bit is set to 1h, then this + * field indicates the location and size of a heap object + * containing a list of cipher suite identifiers. The list, + * if any, is an array of bytes and the values are defined + * in the IANA TLS Parameters Registry. If the Cipher Suites + * Restricted by Policy bit is cleared to 0h, then this field + * is reserved. + * @dh_grp_obj: DH Groups Heap Object Reference: If the Authentication DH Groups + * Restricted by Policy List bit is set to 1h, then this field + * indicates the location and size of a heap object containing + * a list of DH-HMAC-CHAP Diffie-Hellman (DH) group identifiers. + * If the Authentication DH Groups Restricted by Policy List + * bit is cleared to 0h, then this field is reserved. + * @sec_hash_func_obj: Secure Hash Functions Offset Heap Object Reference: If the + * Secure Hash Functions Policy List bit is set to 1h, then + * this field indicates the offset in bytes of a heap object + * containing a list of DH-HMAC-CHAP hash function identifiers. + * The list is an array of bytes and the values are defined + * in the NVM Express Base Specification. If the Secure Hash + * Functions Policy List bit is cleared to 0h, then this + * field is reserved. + * @sec_keypath_obj: Secret Keypath Offset Heap Object Reference: if this field + * is set to a non-zero value, then this field indicates + * the location and size of a heap object containing a URI. + * The type of the URI is specified in the Secret Type field. + * If this field is cleared to 0h, then this field is reserved. + * @reserved2: Reserved. + */ +struct nbft_security { + __u8 structure_id; + __u8 index; + __le16 flags; + __u8 secret_type; + __u8 reserved1; + struct nbft_heap_obj sec_chan_alg_obj; + struct nbft_heap_obj auth_proto_obj; + struct nbft_heap_obj cipher_suite_obj; + struct nbft_heap_obj dh_grp_obj; + struct nbft_heap_obj sec_hash_func_obj; + struct nbft_heap_obj sec_keypath_obj; + __u8 reserved2[22]; +}; + +/** + * enum nbft_security_flags - Security Profile Descriptor Flags (Figure 22) + * @NBFT_SECURITY_VALID: Descriptor Valid: If set to 1h, then + * this descriptor is valid. If cleared + * to 0h, then this descriptor is not valid. + * @NBFT_SECURITY_IN_BAND_AUTH_MASK: Mask to get the In-Band Authentication + * Required field. + * @NBFT_SECURITY_IN_BAND_AUTH_NOT_SUPPORTED: In-band authentication is not supported + * by the NVM subsystem. + * @NBFT_SECURITY_IN_BAND_AUTH_NOT_REQUIRED: In-band authentication is supported by + * the NVM subsystem and is not required. + * @NBFT_SECURITY_IN_BAND_AUTH_REQUIRED: In-band authentication is supported by + * the NVM subsystem and is required. + * @NBFT_SECURITY_AUTH_POLICY_LIST_MASK: Mask to get the Authentication Policy List + * flag: This field indicates whether + * authentication protocols were indicated + * by policy from driver defaults or + * administrative configuration. + * @NBFT_SECURITY_AUTH_POLICY_LIST_NOT_SUPPORTED: Authentication Protocols Heap Object Reference + * field Offset and Length are reserved. + * @NBFT_SECURITY_AUTH_POLICY_LIST_DRIVER: Authentication Protocols Offset field and + * the Authentication Protocols Length field + * indicate a list of authentication protocols + * used by the driver. + * @NBFT_SECURITY_AUTH_POLICY_LIST_ADMIN: Authentication Protocols Offset field and + * the Authentication Protocols Length field + * indicate a list of authentication protocols + * that were administratively set and used + * by the driver. + * @NBFT_SECURITY_SEC_CHAN_NEG_MASK: Mask to get the Secure Channel Negotiation + * Required flag: This field indicates whether + * secure channel negotiation (e.g. TLS) + * is required. + * @NBFT_SECURITY_SEC_CHAN_NEG_NOT_SUPPORTED: Secure channel negotiation is not supported + * by the NVM subsystem. + * @NBFT_SECURITY_SEC_CHAN_NEG_NOT_REQUIRED: Secure channel negotiation is supported + * by the NVM subsystem and is not required. + * @NBFT_SECURITY_SEC_CHAN_NEG_REQUIRED: Secure channel negotiation is supported + * by the NVM subsystem and is required. + * @NBFT_SECURITY_SEC_POLICY_LIST_MASK: Mask to get the Security Policy List flag: + * This field indicates whether secure channel + * protocols were indicated by policy from driver + * defaults or administrative configuration. + * @NBFT_SECURITY_SEC_POLICY_LIST_NOT_SUPPORTED: The Offset field and Length field in the + * Secure Channel Algorithm Heap Object Reference + * field are reserved. + * @NBFT_SECURITY_SEC_POLICY_LIST_DRIVER: The Heap Object specified by the Secure Channel + * Algorithm Heap Object Reference field indicates + * a list of authentication protocols used + * by the driver. + * @NBFT_SECURITY_SEC_POLICY_LIST_ADMIN: The Heap Object specified by the Secure Channel + * Algorithm Heap Object Reference field indicates + * a list of authentication protocols that were + * administratively set and used by the driver. + * @NBFT_SECURITY_CIPHER_RESTRICTED: Cipher Suites Restricted by Policy: If set to 1h, + * then the Cipher Suite Offset field and the + * Ciper Suite Length field indicate a list + * of supported cipher suites by the driver. + * If cleared to 0h, then the Cipher Suite Offset + * field and the Cipher Suite Length field + * are reserved. + * @NBFT_SECURITY_AUTH_DH_GROUPS_RESTRICTED: Authentication DH Groups Restricted + * by Policy List: If set to 1h, then connections + * shall use one of the authentication DH groups + * in the Authentication DH Groups List is required. + * If cleared to 0h, then no Authentication DH Groups + * List is indicated and use of an authentication + * DH Group is not required. + * @NBFT_SECURITY_SEC_HASH_FUNC_POLICY_LIST: Secure Hash Functions Policy List: If set to 1h, + * then connections shall use one of the secure + * hash functions in the Secure Hash Functions + * Policy List is required. If cleared to 0h, + * then no Secure Hash Functions Policy + * List is indicated and use of a secure + * hash function is not required. + */ +enum nbft_security_flags { + NBFT_SECURITY_VALID = 1 << 0, + NBFT_SECURITY_IN_BAND_AUTH_MASK = 0x0006, + NBFT_SECURITY_IN_BAND_AUTH_NOT_SUPPORTED = 0x0000, + NBFT_SECURITY_IN_BAND_AUTH_NOT_REQUIRED = 0x0002, + NBFT_SECURITY_IN_BAND_AUTH_REQUIRED = 0x0004, + NBFT_SECURITY_AUTH_POLICY_LIST_MASK = 0x0018, + NBFT_SECURITY_AUTH_POLICY_LIST_NOT_SUPPORTED = 0x0000, + NBFT_SECURITY_AUTH_POLICY_LIST_DRIVER = 0x0008, + NBFT_SECURITY_AUTH_POLICY_LIST_ADMIN = 0x0010, + NBFT_SECURITY_SEC_CHAN_NEG_MASK = 0x0060, + NBFT_SECURITY_SEC_CHAN_NEG_NOT_SUPPORTED = 0x0000, + NBFT_SECURITY_SEC_CHAN_NEG_NOT_REQUIRED = 0x0020, + NBFT_SECURITY_SEC_CHAN_NEG_REQUIRED = 0x0040, + NBFT_SECURITY_SEC_POLICY_LIST_MASK = 0x0180, + NBFT_SECURITY_SEC_POLICY_LIST_NOT_SUPPORTED = 0x0000, + NBFT_SECURITY_SEC_POLICY_LIST_DRIVER = 0x0080, + NBFT_SECURITY_SEC_POLICY_LIST_ADMIN = 0x0100, + NBFT_SECURITY_CIPHER_RESTRICTED = 1 << 9, + NBFT_SECURITY_AUTH_DH_GROUPS_RESTRICTED = 1 << 10, + NBFT_SECURITY_SEC_HASH_FUNC_POLICY_LIST = 1 << 11, +}; + +/** + * enum nbft_security_secret_type - Security Profile Descriptor Secret Type + * @NBFT_SECURITY_SECRET_REDFISH_HOST_IFACE_URI: Redfish Host Interface URI: + * If set to 1h, then the Secret Keypath + * Object Reference is a URI pointing + * to a Redfish Key Collection Object + * that contains the PSK. + */ +enum nbft_security_secret_type { + NBFT_SECURITY_SECRET_REDFISH_HOST_IFACE_URI = 1 << 1, +}; + +/** + * struct nbft_discovery - Discovery Descriptor (Figure 24) + * @structure_id: Structure ID: This field shall be set to 6h + * (i.e., Discovery Descriptor; #NBFT_DESC_DISCOVERY). + * @flags: Discovery Descriptor Flags, see &enum nbft_discovery_flags. + * @index: Discovery Descriptor Index: This field indicates + * the number of this Discovery Descriptor in + * the Discovery Descriptor List. + * @hfi_index: HFI Descriptor Index: This field indicates the value + * of the HFI Descriptor Index field of the HFI Descriptor + * associated with this Discovery Descriptor. If multiple + * HFIs share a common Discovery controller, there shall + * be multiple Discovery Descriptor entries with one per HFI. + * @sec_index: Security Profile Descriptor Index: This field indicates + * the value of the Security Profile Descriptor Index + * field of the Security Descriptor associated with + * this Discovery Descriptor. + * @reserved1: Reserved. + * @discovery_ctrl_addr_obj: Discovery Controller Address Heap Object Reference: + * This field indicates the location and size of a heap + * object containing a URI which indicates an NVMe Discovery + * controller associated with this Discovery Descriptor. + * If this field is cleared to 0h, then no URI is specified. + * @discovery_ctrl_nqn_obj: Discovery Controller NQN Heap Object Reference: + * If set to a non-zero value, this field indicates + * the location and size of a heap object containing + * an NVMe Discovery controller NQN. If the NVMe Discovery + * controller referenced by this record requires secure + * authentication with a well known Subsystem NQN, this + * field indicates the unique NQN for that NVMe Discovery + * controller. This record is involved formatted as an NQN + * string. If this field is cleared to 0h, then this + * field is reserved and the OS shall use the well + * known discovery NQN for this record. + * @reserved2: Reserved. + */ +struct nbft_discovery { + __u8 structure_id; + __u8 flags; + __u8 index; + __u8 hfi_index; + __u8 sec_index; + __u8 reserved1; + struct nbft_heap_obj discovery_ctrl_addr_obj; + struct nbft_heap_obj discovery_ctrl_nqn_obj; + __u8 reserved2[14]; +}; + +/** + * enum nbft_discovery_flags - Discovery Descriptor Flags + * @NBFT_DISCOVERY_VALID: Descriptor Valid: if set to 1h, then this descriptor + * is valid. If cleared to 0h, then this descriptor + * is reserved. + */ +enum nbft_discovery_flags { + NBFT_DISCOVERY_VALID = 1 << 0, +}; + +/* + * End of NBFT ACPI table definitions + */ + + +/* + * Convenient NBFT table parser ('nbft_info' prefix) + */ + +/** + * enum nbft_info_primary_admin_host_flag - Primary Administrative Host Descriptor Flags + * @NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_NOT_INDICATED: Not Indicated by Driver: The driver + * that created this NBFT provided no + * administrative priority hint for + * this NBFT. + * @NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_UNSELECTED: Unselected: The driver that created + * this NBFT explicitly indicated that + * this NBFT should not be prioritized + * over any other NBFT. + * @NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_SELECTED: Selected: The driver that created + * this NBFT explicitly indicated that + * this NBFT should be prioritized over + * any other NBFT. + * @NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_RESERVED: Reserved. + */ +enum nbft_info_primary_admin_host_flag { + NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_NOT_INDICATED, + NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_UNSELECTED, + NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_SELECTED, + NBFT_INFO_PRIMARY_ADMIN_HOST_FLAG_RESERVED, +}; + +/** + * struct nbft_info_host - Host Descriptor + * @id: Host ID (raw UUID, length = 16 bytes). + * @nqn: Host NQN. + * @host_id_configured: HostID Configured Flag: value of True indicates that @id + * contains administratively-configured value, or driver + * default value if False. + * @host_nqn_configured: Host NQN Configured Flag: value of True indicates that + * @nqn contains administratively-configured value, + * or driver default value if False. + * @primary: Primary Administrative Host Descriptor, see + * &enum nbft_info_primary_admin_host_flag. + */ +struct nbft_info_host { + unsigned char *id; + char *nqn; + bool host_id_configured; + bool host_nqn_configured; + enum nbft_info_primary_admin_host_flag primary; +}; + +/** + * struct nbft_info_hfi_info_tcp - HFI Transport Info Descriptor - NVMe/TCP + * @pci_sbdf: PCI Express Routing ID for the HFI Transport Function. + * @mac_addr: MAC Address: The MAC address of this HFI, + * in EUI-48TM format. + * @vlan: The VLAN identifier if the VLAN is associated with + * this HFI, as defined in IEEE 802.1q-2018 or zeroes + * if no VLAN is associated with this HFI. + * @ip_origin: The source of Ethernet L3 configuration information + * used by the driver or 0 if not used. + * @ipaddr: The IPv4 or IPv6 address of this HFI. + * @subnet_mask_prefix: The IPv4 or IPv6 subnet mask in CIDR routing prefix + * notation. + * @gateway_ipaddr: The IPv4 or IPv6 address of the IP gateway for this + * HFI or zeroes if no IP gateway is specified. + * @route_metric: The cost value for the route indicated by this HFI. + * @primary_dns_ipaddr: The IPv4 or IPv6 address of the Primary DNS server + * for this HFI. + * @secondary_dns_ipaddr: The IPv4 or IPv6 address of the Secondary DNS server + * for this HFI. + * @dhcp_server_ipaddr: The IPv4 or IPv6 address of the DHCP server used + * to assign this HFI address. + * @host_name: The Host Name string. + * @this_hfi_is_default_route: If True, then the BIOS utilized this interface + * described by HFI to be the default route with highest + * priority. If False, then routes are local to their + * own scope. + * @dhcp_override: If True, then HFI information was populated + * by consuming the DHCP on this interface. If False, + * then the HFI information was set administratively + * by a configuration interface to the driver and + * pre-OS envrionment. + */ +struct nbft_info_hfi_info_tcp { + __u32 pci_sbdf; + __u8 mac_addr[6]; + __u16 vlan; + __u8 ip_origin; + char ipaddr[40]; + __u8 subnet_mask_prefix; + char gateway_ipaddr[40]; + __u16 route_metric; + char primary_dns_ipaddr[40]; + char secondary_dns_ipaddr[40]; + char dhcp_server_ipaddr[40]; + char *host_name; + bool this_hfi_is_default_route; + bool dhcp_override; +}; + +/** + * struct nbft_info_hfi - Host Fabric Interface (HFI) Descriptor + * @index: HFI Descriptor Index: indicates the number of this HFI Descriptor + * in the Host Fabric Interface Descriptor List. + * @transport: Transport Type string (e.g. 'tcp'). + * @tcp_info: The HFI Transport Info Descriptor, see &struct nbft_info_hfi_info_tcp. + */ +struct nbft_info_hfi { + int index; + char transport[8]; + struct nbft_info_hfi_info_tcp tcp_info; +}; + +/** + * struct nbft_info_discovery - Discovery Descriptor + * @index: The number of this Discovery Descriptor in the Discovery + * Descriptor List. + * @security: The Security Profile Descriptor, see &struct nbft_info_security. + * @hfi: The HFI Descriptor associated with this Discovery Descriptor. + * See &struct nbft_info_hfi. + * @uri: A URI which indicates an NVMe Discovery controller associated + * with this Discovery Descriptor. + * @nqn: An NVMe Discovery controller NQN. + */ +struct nbft_info_discovery { + int index; + struct nbft_info_security *security; + struct nbft_info_hfi *hfi; + char *uri; + char *nqn; +}; + +/** + * struct nbft_info_security - Security Profile Descriptor + * @index: The number of this Security Profile Descriptor in the Security + * Profile Descriptor List. + */ +struct nbft_info_security { + int index; + /* TODO add fields */ +}; + +/** + * enum nbft_info_nid_type - Namespace Identifier Type (NIDT) + * @NBFT_INFO_NID_TYPE_NONE: No identifier available. + * @NBFT_INFO_NID_TYPE_EUI64: The EUI-64 identifier. + * @NBFT_INFO_NID_TYPE_NGUID: The NSGUID identifier. + * @NBFT_INFO_NID_TYPE_NS_UUID: The UUID identifier. + */ +enum nbft_info_nid_type { + NBFT_INFO_NID_TYPE_NONE = 0, + NBFT_INFO_NID_TYPE_EUI64 = 1, + NBFT_INFO_NID_TYPE_NGUID = 2, + NBFT_INFO_NID_TYPE_NS_UUID = 3, +}; + +/** + * struct nbft_info_subsystem_ns - Subsystem Namespace (SSNS) info + * @index: SSNS Descriptor Index in the descriptor list. + * @discovery: Primary Discovery Controller associated with + * this SSNS Descriptor. + * @security: Security Profile Descriptor associated with + * this namespace. + * @num_hfis: Number of HFIs. + * @hfis: List of HFIs associated with this namespace. + * Includes the primary HFI at the first position + * and all secondary HFIs. This array is null-terminated. + * @transport: Transport Type string (e.g. 'tcp'). + * @traddr: Subsystem Transport Address. + * @trsvcid: Subsystem Transport Service Identifier. + * @subsys_port_id: The Subsystem Port ID. + * @nsid: The Namespace ID of this descriptor or when @nid + * should be used instead. + * @nid_type: Namespace Identifier Type, see &enum nbft_info_nid_type. + * @nid: The Namespace Identifier value. + * @subsys_nqn: Subsystem and Namespace NQN. + * @pdu_header_digest_required: PDU Header Digest (HDGST) Flag: the use of NVM Header + * Digest Enabled is required. + * @data_digest_required: Data Digest (DDGST) Flag: the use of NVM Data Digest + * Enabled is required. + * @controller_id: Controller ID (SSNS Extended Information Descriptor): + * The controller ID associated with the Admin Queue + * or 0 if not supported. + * @asqsz: Admin Submission Queue Size (SSNS Extended Information + * Descriptor) or 0 if not supported. + * @dhcp_root_path_string: DHCP Root Path Override string (SSNS Extended + * Information Descriptor). + */ +struct nbft_info_subsystem_ns { + int index; + struct nbft_info_discovery *discovery; + struct nbft_info_security *security; + int num_hfis; + struct nbft_info_hfi **hfis; + char transport[8]; + char traddr[40]; + char *trsvcid; + __u16 subsys_port_id; + __u32 nsid; + enum nbft_info_nid_type nid_type; + __u8 *nid; + char *subsys_nqn; + bool pdu_header_digest_required; + bool data_digest_required; + int controller_id; + int asqsz; + char *dhcp_root_path_string; +}; + +/** + * struct nbft_info - The parsed NBFT table data. + * @filename: Path to the NBFT table. + * @raw_nbft: The original NBFT table contents. + * @raw_nbft_size: Size of @raw_nbft. + * @host: The Host Descriptor (should match other NBFTs). + * @hfi_list: The HFI Descriptor List (null-terminated array). + * @security_list: The Security Profile Descriptor List (null-terminated array). + * @discovery_list: The Discovery Descriptor List (null-terminated array). + * @subsystem_ns_list: The SSNS Descriptor List (null-terminated array). + */ +struct nbft_info { + char *filename; + __u8 *raw_nbft; + ssize_t raw_nbft_size; + struct nbft_info_host host; + struct nbft_info_hfi **hfi_list; + struct nbft_info_security **security_list; + struct nbft_info_discovery **discovery_list; + struct nbft_info_subsystem_ns **subsystem_ns_list; +}; + +/** + * nvme_nbft_read() - Read and parse contents of an ACPI NBFT table + * + * @nbft: Parsed NBFT table data. + * @filename: Filename of the raw NBFT table to read. + * + * Read and parse the specified NBFT file into a struct nbft_info. + * Free with nvme_nbft_free(). + * + * Return: 0 on success, errno otherwise. + */ +int nvme_nbft_read(struct nbft_info **nbft, const char *filename); + +/** + * nvme_nbft_free() - Free the struct nbft_info and its contents + * @nbft: Parsed NBFT table data. + */ +void nvme_nbft_free(struct nbft_info *nbft); + +#endif |