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Diffstat (limited to '')
| -rw-r--r-- | platform-intel.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/platform-intel.h b/platform-intel.h new file mode 100644 index 0000000..6238d23 --- /dev/null +++ b/platform-intel.h @@ -0,0 +1,259 @@ +/* + * Intel(R) Matrix Storage Manager hardware and firmware support routines + * + * Copyright (C) 2008 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ +#include <asm/types.h> +#include <strings.h> + +/* The IMSM Capability (IMSM AHCI and ISCU OROM/EFI variable) Version Table definition */ +struct imsm_orom { + __u8 signature[4]; + #define IMSM_OROM_SIGNATURE "$VER" + #define IMSM_NVME_OROM_COMPAT_SIGNATURE "$NVM" + __u8 table_ver_major; /* Currently 2 (can change with future revs) */ + __u8 table_ver_minor; /* Currently 2 (can change with future revs) */ + __u16 major_ver; /* Example: 8 as in 8.6.0.1020 */ + __u16 minor_ver; /* Example: 6 as in 8.6.0.1020 */ + __u16 hotfix_ver; /* Example: 0 as in 8.6.0.1020 */ + __u16 build; /* Example: 1020 as in 8.6.0.1020 */ + __u8 len; /* number of bytes in this entire table */ + __u8 checksum; /* checksum of all the bytes in this table */ + __u16 rlc; /* RAID Level Capability */ + /* we assume the cpu is x86 as the orom should not be found + * anywhere else + */ + #define IMSM_OROM_RLC_RAID0 (1 << 0) + #define IMSM_OROM_RLC_RAID1 (1 << 1) + #define IMSM_OROM_RLC_RAID10 (1 << 2) + #define IMSM_OROM_RLC_RAID1E (1 << 3) + #define IMSM_OROM_RLC_RAID5 (1 << 4) + #define IMSM_OROM_RLC_RAID_CNG (1 << 5) + __u16 sss; /* Strip Size Supported */ + #define IMSM_OROM_SSS_2kB (1 << 0) + #define IMSM_OROM_SSS_4kB (1 << 1) + #define IMSM_OROM_SSS_8kB (1 << 2) + #define IMSM_OROM_SSS_16kB (1 << 3) + #define IMSM_OROM_SSS_32kB (1 << 4) + #define IMSM_OROM_SSS_64kB (1 << 5) + #define IMSM_OROM_SSS_128kB (1 << 6) + #define IMSM_OROM_SSS_256kB (1 << 7) + #define IMSM_OROM_SSS_512kB (1 << 8) + #define IMSM_OROM_SSS_1MB (1 << 9) + #define IMSM_OROM_SSS_2MB (1 << 10) + #define IMSM_OROM_SSS_4MB (1 << 11) + #define IMSM_OROM_SSS_8MB (1 << 12) + #define IMSM_OROM_SSS_16MB (1 << 13) + #define IMSM_OROM_SSS_32MB (1 << 14) + #define IMSM_OROM_SSS_64MB (1 << 15) + __u16 dpa; /* Disks Per Array supported */ + #define IMSM_OROM_DISKS_PER_ARRAY 6 + #define IMSM_OROM_DISKS_PER_ARRAY_NVME 12 + __u16 tds; /* Total Disks Supported */ + #define IMSM_OROM_TOTAL_DISKS 6 + #define IMSM_OROM_TOTAL_DISKS_NVME 12 + __u8 vpa; /* # Volumes Per Array supported */ + #define IMSM_OROM_VOLUMES_PER_ARRAY 2 + __u8 vphba; /* # Volumes Per Host Bus Adapter supported */ + #define IMSM_OROM_VOLUMES_PER_HBA 4 + #define IMSM_OROM_VOLUMES_PER_HBA_NVME 4 + /* Attributes supported. This should map to the + * attributes in the MPB. Also, lower 16 bits + * should match/duplicate RLC bits above. + */ + __u32 attr; + #define IMSM_OROM_ATTR_RAID0 IMSM_OROM_RLC_RAID0 + #define IMSM_OROM_ATTR_RAID1 IMSM_OROM_RLC_RAID1 + #define IMSM_OROM_ATTR_RAID10 IMSM_OROM_RLC_RAID10 + #define IMSM_OROM_ATTR_RAID1E IMSM_OROM_RLC_RAID1E + #define IMSM_OROM_ATTR_RAID5 IMSM_OROM_RLC_RAID5 + #define IMSM_OROM_ATTR_RAID_CNG IMSM_OROM_RLC_RAID_CNG + #define IMSM_OROM_ATTR_2TB_DISK (1 << 26) + #define IMSM_OROM_ATTR_2TB (1 << 29) + #define IMSM_OROM_ATTR_PM (1 << 30) + #define IMSM_OROM_ATTR_ChecksumVerify (1 << 31) + __u32 capabilities; + #define IMSM_OROM_CAPABILITIES_Ext_SATA (1 << 0) + #define IMSM_OROM_CAPABILITIES_TurboMemory (1 << 1) + #define IMSM_OROM_CAPABILITIES_HddPassword (1 << 2) + #define IMSM_OROM_CAPABILITIES_DiskCoercion (1 << 3) + __u32 driver_features; + #define IMSM_OROM_CAPABILITIES_HDDUnlock (1 << 0) + #define IMSM_OROM_CAPABILITIES_LEDLoc (1 << 1) + #define IMSM_OROM_CAPABILITIES_EnterpriseSystem (1 << 2) + #define IMSM_OROM_CAPABILITIES_Zpodd (1 << 3) + #define IMSM_OROM_CAPABILITIES_LargeDramCache (1 << 4) + #define IMSM_OROM_CAPABILITIES_Rohi (1 << 5) + #define IMSM_OROM_CAPABILITIES_ReadPatrol (1 << 6) + #define IMSM_OROM_CAPABILITIES_XorHw (1 << 7) + #define IMSM_OROM_CAPABILITIES_SKUMode ((1 << 8)|(1 << 9)) + #define IMSM_OROM_CAPABILITIES_TPV (1 << 10) +} __attribute__((packed)); + +static inline int imsm_orom_has_raid0(const struct imsm_orom *orom) +{ + return !!(orom->rlc & IMSM_OROM_RLC_RAID0); +} +static inline int imsm_orom_has_raid1(const struct imsm_orom *orom) +{ + return !!(orom->rlc & IMSM_OROM_RLC_RAID1); +} +static inline int imsm_orom_has_raid1e(const struct imsm_orom *orom) +{ + return !!(orom->rlc & IMSM_OROM_RLC_RAID1E); +} +static inline int imsm_orom_has_raid10(const struct imsm_orom *orom) +{ + return !!(orom->rlc & IMSM_OROM_RLC_RAID10); +} +static inline int imsm_orom_has_raid5(const struct imsm_orom *orom) +{ + return !!(orom->rlc & IMSM_OROM_RLC_RAID5); +} + +/** + * imsm_orom_has_chunk - check if the orom supports the given chunk size + * @orom: orom pointer from find_imsm_orom + * @chunk: chunk size in kibibytes + */ +static inline int imsm_orom_has_chunk(const struct imsm_orom *orom, int chunk) +{ + int fs = ffs(chunk); + if (!fs) + return 0; + fs--; /* bit num to bit index */ + if (chunk & (chunk-1)) + return 0; /* not a power of 2 */ + return !!(orom->sss & (1 << (fs - 1))); +} + +/** + * fls - find last (most-significant) bit set + * @x: the word to search + * The funciton is borrowed from Linux kernel code + * include/asm-generic/bitops/fls.h + */ +static inline int fls(int x) +{ + int r = 32; + + if (!x) + return 0; + if (!(x & 0xffff0000u)) { + x <<= 16; + r -= 16; + } + if (!(x & 0xff000000u)) { + x <<= 8; + r -= 8; + } + if (!(x & 0xf0000000u)) { + x <<= 4; + r -= 4; + } + if (!(x & 0xc0000000u)) { + x <<= 2; + r -= 2; + } + if (!(x & 0x80000000u)) { + r -= 1; + } + return r; +} + +static inline int imsm_orom_is_enterprise(const struct imsm_orom *orom) +{ + return !!(orom->driver_features & IMSM_OROM_CAPABILITIES_EnterpriseSystem); +} + +static inline int imsm_orom_is_nvme(const struct imsm_orom *orom) +{ + return memcmp(orom->signature, IMSM_NVME_OROM_COMPAT_SIGNATURE, + sizeof(orom->signature)) == 0; +} + +static inline int imsm_orom_has_tpv_support(const struct imsm_orom *orom) +{ + return !!(orom->driver_features & IMSM_OROM_CAPABILITIES_TPV); +} + +enum sys_dev_type { + SYS_DEV_UNKNOWN = 0, + SYS_DEV_SAS, + SYS_DEV_SATA, + SYS_DEV_NVME, + SYS_DEV_VMD, + SYS_DEV_MAX +}; + +struct sys_dev { + enum sys_dev_type type; + char *path; + char *pci_id; + __u16 dev_id; + __u32 class; + struct sys_dev *next; +}; + +struct efi_guid { + __u8 b[16]; +}; + +struct devid_list { + __u16 devid; + struct devid_list *next; +}; + +struct orom_entry { + struct imsm_orom orom; + struct devid_list *devid_list; + enum sys_dev_type type; + struct orom_entry *next; +}; + +extern struct orom_entry *orom_entries; + +static inline char *guid_str(char *buf, struct efi_guid guid) +{ + sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", + guid.b[3], guid.b[2], guid.b[1], guid.b[0], + guid.b[5], guid.b[4], guid.b[7], guid.b[6], + guid.b[8], guid.b[9], guid.b[10], guid.b[11], + guid.b[12], guid.b[13], guid.b[14], guid.b[15]); + return buf; +} + +char *get_nvme_multipath_dev_hw_path(const char *dev_path); +char *diskfd_to_devpath(int fd, int dev_level, char *buf); +int devpath_to_char(const char *dev_path, const char *entry, char *buf, + int len, int verbose); +__u16 devpath_to_vendor(const char *dev_path); +struct sys_dev *find_driver_devices(const char *bus, const char *driver); +struct sys_dev *find_intel_devices(void); +const struct imsm_orom *find_imsm_capability(struct sys_dev *hba); +const struct imsm_orom *find_imsm_orom(void); +int disk_attached_to_hba(int fd, const char *hba_path); +int devt_attached_to_hba(dev_t dev, const char *hba_path); +char *devt_to_devpath(dev_t dev, int dev_level, char *buf); +int path_attached_to_hba(const char *disk_path, const char *hba_path); +const char *get_sys_dev_type(enum sys_dev_type); +const struct orom_entry *get_orom_entry_by_device_id(__u16 dev_id); +const struct imsm_orom *get_orom_by_device_id(__u16 device_id); +struct sys_dev *device_by_id(__u16 device_id); +struct sys_dev *device_by_id_and_path(__u16 device_id, const char *path); +int is_multipath_nvme(int disk_fd); +int imsm_is_nvme_namespace_supported(int disk_fd, int verbose); +char *vmd_domain_to_controller(struct sys_dev *hba, char *buf); 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