2 * Intel(R) Matrix Storage Manager hardware and firmware support routines
4 * Copyright (C) 2008 Intel Corporation
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 #include <asm/types.h>
22 /* The IMSM Capability (IMSM AHCI and ISCU OROM/EFI variable) Version Table definition */
25 #define IMSM_OROM_SIGNATURE "$VER"
26 #define IMSM_NVME_OROM_COMPAT_SIGNATURE "$NVM"
27 __u8 table_ver_major
; /* Currently 2 (can change with future revs) */
28 __u8 table_ver_minor
; /* Currently 2 (can change with future revs) */
29 __u16 major_ver
; /* Example: 8 as in 8.6.0.1020 */
30 __u16 minor_ver
; /* Example: 6 as in 8.6.0.1020 */
31 __u16 hotfix_ver
; /* Example: 0 as in 8.6.0.1020 */
32 __u16 build
; /* Example: 1020 as in 8.6.0.1020 */
33 __u8 len
; /* number of bytes in this entire table */
34 __u8 checksum
; /* checksum of all the bytes in this table */
35 __u16 rlc
; /* RAID Level Capability */
36 /* we assume the cpu is x86 as the orom should not be found
39 #define IMSM_OROM_RLC_RAID0 (1 << 0)
40 #define IMSM_OROM_RLC_RAID1 (1 << 1)
41 #define IMSM_OROM_RLC_RAID10 (1 << 2)
42 #define IMSM_OROM_RLC_RAID1E (1 << 3)
43 #define IMSM_OROM_RLC_RAID5 (1 << 4)
44 #define IMSM_OROM_RLC_RAID_CNG (1 << 5)
45 __u16 sss
; /* Strip Size Supported */
46 #define IMSM_OROM_SSS_2kB (1 << 0)
47 #define IMSM_OROM_SSS_4kB (1 << 1)
48 #define IMSM_OROM_SSS_8kB (1 << 2)
49 #define IMSM_OROM_SSS_16kB (1 << 3)
50 #define IMSM_OROM_SSS_32kB (1 << 4)
51 #define IMSM_OROM_SSS_64kB (1 << 5)
52 #define IMSM_OROM_SSS_128kB (1 << 6)
53 #define IMSM_OROM_SSS_256kB (1 << 7)
54 #define IMSM_OROM_SSS_512kB (1 << 8)
55 #define IMSM_OROM_SSS_1MB (1 << 9)
56 #define IMSM_OROM_SSS_2MB (1 << 10)
57 #define IMSM_OROM_SSS_4MB (1 << 11)
58 #define IMSM_OROM_SSS_8MB (1 << 12)
59 #define IMSM_OROM_SSS_16MB (1 << 13)
60 #define IMSM_OROM_SSS_32MB (1 << 14)
61 #define IMSM_OROM_SSS_64MB (1 << 15)
62 __u16 dpa
; /* Disks Per Array supported */
63 #define IMSM_OROM_DISKS_PER_ARRAY 6
64 #define IMSM_OROM_DISKS_PER_ARRAY_NVME 12
65 __u16 tds
; /* Total Disks Supported */
66 #define IMSM_OROM_TOTAL_DISKS 6
67 #define IMSM_OROM_TOTAL_DISKS_NVME 12
68 __u8 vpa
; /* # Volumes Per Array supported */
69 #define IMSM_OROM_VOLUMES_PER_ARRAY 2
70 __u8 vphba
; /* # Volumes Per Host Bus Adapter supported */
71 #define IMSM_OROM_VOLUMES_PER_HBA 4
72 #define IMSM_OROM_VOLUMES_PER_HBA_NVME 4
73 /* Attributes supported. This should map to the
74 * attributes in the MPB. Also, lower 16 bits
75 * should match/duplicate RLC bits above.
78 #define IMSM_OROM_ATTR_RAID0 IMSM_OROM_RLC_RAID0
79 #define IMSM_OROM_ATTR_RAID1 IMSM_OROM_RLC_RAID1
80 #define IMSM_OROM_ATTR_RAID10 IMSM_OROM_RLC_RAID10
81 #define IMSM_OROM_ATTR_RAID1E IMSM_OROM_RLC_RAID1E
82 #define IMSM_OROM_ATTR_RAID5 IMSM_OROM_RLC_RAID5
83 #define IMSM_OROM_ATTR_RAID_CNG IMSM_OROM_RLC_RAID_CNG
84 #define IMSM_OROM_ATTR_2TB_DISK (1 << 26)
85 #define IMSM_OROM_ATTR_2TB (1 << 29)
86 #define IMSM_OROM_ATTR_PM (1 << 30)
87 #define IMSM_OROM_ATTR_ChecksumVerify (1 << 31)
89 #define IMSM_OROM_CAPABILITIES_Ext_SATA (1 << 0)
90 #define IMSM_OROM_CAPABILITIES_TurboMemory (1 << 1)
91 #define IMSM_OROM_CAPABILITIES_HddPassword (1 << 2)
92 #define IMSM_OROM_CAPABILITIES_DiskCoercion (1 << 3)
93 __u32 driver_features
;
94 #define IMSM_OROM_CAPABILITIES_HDDUnlock (1 << 0)
95 #define IMSM_OROM_CAPABILITIES_LEDLoc (1 << 1)
96 #define IMSM_OROM_CAPABILITIES_EnterpriseSystem (1 << 2)
97 #define IMSM_OROM_CAPABILITIES_Zpodd (1 << 3)
98 #define IMSM_OROM_CAPABILITIES_LargeDramCache (1 << 4)
99 #define IMSM_OROM_CAPABILITIES_Rohi (1 << 5)
100 #define IMSM_OROM_CAPABILITIES_ReadPatrol (1 << 6)
101 #define IMSM_OROM_CAPABILITIES_XorHw (1 << 7)
102 } __attribute__((packed
));
104 static inline int imsm_orom_has_raid0(const struct imsm_orom
*orom
)
106 return !!(orom
->rlc
& IMSM_OROM_RLC_RAID0
);
108 static inline int imsm_orom_has_raid1(const struct imsm_orom
*orom
)
110 return !!(orom
->rlc
& IMSM_OROM_RLC_RAID1
);
112 static inline int imsm_orom_has_raid1e(const struct imsm_orom
*orom
)
114 return !!(orom
->rlc
& IMSM_OROM_RLC_RAID1E
);
116 static inline int imsm_orom_has_raid10(const struct imsm_orom
*orom
)
118 return !!(orom
->rlc
& IMSM_OROM_RLC_RAID10
);
120 static inline int imsm_orom_has_raid5(const struct imsm_orom
*orom
)
122 return !!(orom
->rlc
& IMSM_OROM_RLC_RAID5
);
126 * imsm_orom_has_chunk - check if the orom supports the given chunk size
127 * @orom: orom pointer from find_imsm_orom
128 * @chunk: chunk size in kibibytes
130 static inline int imsm_orom_has_chunk(const struct imsm_orom
*orom
, int chunk
)
135 fs
--; /* bit num to bit index */
136 if (chunk
& (chunk
-1))
137 return 0; /* not a power of 2 */
138 return !!(orom
->sss
& (1 << (fs
- 1)));
142 * fls - find last (most-significant) bit set
143 * @x: the word to search
144 * The funciton is borrowed from Linux kernel code
145 * include/asm-generic/bitops/fls.h
147 static inline int fls(int x
)
153 if (!(x
& 0xffff0000u
)) {
157 if (!(x
& 0xff000000u
)) {
161 if (!(x
& 0xf0000000u
)) {
165 if (!(x
& 0xc0000000u
)) {
169 if (!(x
& 0x80000000u
)) {
176 static inline int imsm_orom_is_enterprise(const struct imsm_orom
*orom
)
178 return !!(orom
->driver_features
& IMSM_OROM_CAPABILITIES_EnterpriseSystem
);
181 static inline int imsm_orom_is_nvme(const struct imsm_orom
*orom
)
183 return memcmp(orom
->signature
, IMSM_NVME_OROM_COMPAT_SIGNATURE
,
184 sizeof(orom
->signature
)) == 0;
197 enum sys_dev_type type
;
202 struct sys_dev
*next
;
211 struct devid_list
*next
;
215 struct imsm_orom orom
;
216 struct devid_list
*devid_list
;
217 enum sys_dev_type type
;
218 struct orom_entry
*next
;
221 extern struct orom_entry
*orom_entries
;
223 static inline char *guid_str(char *buf
, struct efi_guid guid
)
225 sprintf(buf
, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
226 guid
.b
[3], guid
.b
[2], guid
.b
[1], guid
.b
[0],
227 guid
.b
[5], guid
.b
[4], guid
.b
[7], guid
.b
[6],
228 guid
.b
[8], guid
.b
[9], guid
.b
[10], guid
.b
[11],
229 guid
.b
[12], guid
.b
[13], guid
.b
[14], guid
.b
[15]);
233 char *diskfd_to_devpath(int fd
);
234 __u16
devpath_to_vendor(const char *dev_path
);
235 struct sys_dev
*find_driver_devices(const char *bus
, const char *driver
);
236 struct sys_dev
*find_intel_devices(void);
237 const struct imsm_orom
*find_imsm_capability(struct sys_dev
*hba
);
238 const struct imsm_orom
*find_imsm_orom(void);
239 int disk_attached_to_hba(int fd
, const char *hba_path
);
240 int devt_attached_to_hba(dev_t dev
, const char *hba_path
);
241 char *devt_to_devpath(dev_t dev
);
242 int path_attached_to_hba(const char *disk_path
, const char *hba_path
);
243 const char *get_sys_dev_type(enum sys_dev_type
);
244 const struct orom_entry
*get_orom_entry_by_device_id(__u16 dev_id
);
245 const struct imsm_orom
*get_orom_by_device_id(__u16 device_id
);
246 struct sys_dev
*device_by_id(__u16 device_id
);
247 char *vmd_domain_to_controller(struct sys_dev
*hba
, char *buf
);