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the record ID for the wrong record. However, events that change record IDs for any existing records
cause the present reservation ID to be canceled. This prevents software from using an out-of-date
record ID to access a record. For example, it would prevent the delete SDR command from
executing and deleting the wrong record in case a given record ID was reassigned to a different
record.
Table 88 Reserve SDR repository command response data
Data fieldResponse data byte
number
Completion code1
Reservation ID, LS byte.2
Reservation ID, MS byte.3
Reservation restricted commands
A requester must issue a reserve SDR repository command before issuing any of the following
SDR repository commands. This command only needs to be reissued if the reservation is canceled.
The following commands are rejected if the requester’s reservation has been canceled.
• Delete SDR command
• Clear SDR Repository command
• Get SDR command (if a partial read)
If the given reservation has been canceled, a reservation canceled completion code is returned in
response to the above commands. See “Reservation cancellation” (page 121)
Since record IDs could change between offset 0 “gets” of a given record, it is the responsibility of
the device accessing the repository to verify that the retrieved record information matches up with
the ID information (slave address, LUN, sensor ID, and so on) of the desired sensor.
Reservation cancellation
The SDR repository device automatically cancels the present SDR repository reservation after any
of the following events occur:
• An SDR record is added using the add SDR command so that other record IDs change. As
a simplification, an implementation is allowed to cancel the reservation on any SDR record
add.
• An SDR record is deleted so that other record IDs change. As a simplification, an
implementation is allowed to cancel the reservation on any SDR record deletion.
• The SDR repository is cleared.
• The SDR repository device is reset (via hardware or cold reset command).
• A new reserve SDR repository command is received.
An error completion code is returned if an attempt is made to execute a command that requires a
reservation ID, but the reservation ID used is not valid or current.
Get SDR command
This command is available to the MC.
This command returns the sensor record specified by record ID. The command also accepts a byte
range specification that allows just a selected portion of the record to be retrieved (incremental
read). The requester must first reserve the SDR repository using the reserve SDR repository
command in order for an incremental read to an offset other than 0000h to be accepted. (It is also
recommended that an application use the get SDR repository info command to verify the
Standard command specification 121
- Abstract 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Overview 7
- Sensor Data Model 7
- Sensor type code 8
- SDR repository 10
- Standardized timers 12
- Special timestamp values 13
- 4 IPMItool 18
- Interfaces 19
- Features 20
- Inventory 22
- Chassis management 22
- Synopsis 22
- Description 23
- 5 Command specification 25
- Global commands 29
- Cold reset command 32
- Warm reset command 33
- Get self test results command 33
- Get ACPI power state command 34
- Clear message flags command 37
- Get message flags command 38
- Get message command 39
- Send message command 42
- ◦ version 5 SHA1 hash 44
- ◦ 0h = ASCII+Latin1 47
- ◦ 1h = UTF-8 47
- ◦ 2h = UNICODE 47
- ◦ All other = Reserved 47
- Close session command 57
- Get session info command 57
- Get AuthCode command 59
- Set channel access command 60
- Get channel access command 62
- Get channel info command 63
- Set user access command 65
- Get user access command 66
- Get user name command 68
- Set user name command 68
- Set user password command 69
- Activate payload command 71
- ◦ [0] — Reserved 73
- ◦ 1b = Test mode enabled 73
- IPMI LAN Device Commands 83
- MC watchdog timer commands 96
- Watchdog timer event logging 97
- Pre-timeout interrupt 98
- Reset watchdog timer command 98
- Set watchdog timer command 98
- Get watchdog timer command 100
- Chassis commands 102
- Get chassis status command 103
- Chassis control command 104
- Chassis identify command 105
- Get POH counter command 111
- Event commands 112
- Get event receiver command 113
- SEL commands 114
- Clear SEL 117
- SEL record type ranges 117
- Get SEL time command 118
- Set SEL time command 118
- SDR record IDs 118
- Get SDR command 121
- Add SDR command 122
- Delete SDR command 123
- Clear SDR repository command 123
- Sensor Device Commands 126
- Get device SDR command 127
- Get sensor thresholds command 128
- Get sensor reading command 129
- DCMI specific commands 130
- ◦ [0] Reserved. Write as 0b 133
- Get DCMI sensor info command 134
- Set asset tag command 135
- PICMG specific commands 137
- Table 113 Site type values 138
- System Interfaces 140
- Network function codes 141
- Completion codes 142
- Channel numbers 145
- Logical channels 145
- Channel Privilege Levels 145
- Users & Password support 146
- IPMI sessions 146
- System interface messaging 147
- Bridging 148
- Bridged Request Example 149
- MC IPMB LUNs 151
- KCS Interface/MC LUNs 153
- LAN Interface 154
- RMCP Message Format 155
- Serial Over LAN (SOL) 156
- 7 Support and other resources 157
- Websites 158
- A Command Assignments 159
- B Verbose output examples 164
- 166 Verbose output examples 166
- 168 Verbose output examples 168
- 170 Verbose output examples 170
- 172 Verbose output examples 172
- At cartridge: 174
- 176 Verbose output examples 176
- 178 Verbose output examples 178
- 180 Verbose output examples 180
- 182 Verbose output examples 182
- 184 Verbose output examples 184
- Glossary 186
- 188 Index 188
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