
IPMI Feature Set
ATCA-7540 Installation and Use (6806871A01A)
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The boot loader maintains redundant copies of the firmware in flash. Each time the IPMI
firmware is upgraded, a redundant copy of the current IPMI firmware is made in flash. Once the
new IPMI firmware is programmed, the IPMI controller will reset itself to boot from the new
image. The boot loader also validates new IPMI firmware images. The provided IPMI controller
can power up successfully and the new image is made active and the previously active image is
made backup. In case power-up fails, the boot loader will automatically recover from crisis and
boots from the backup image.
The IPMI controller can be upgraded via KCS, LAN, or IPMB interface. To ensure that the payload
is not interrupted during IPMI firmware upgrade, the IPMI controller stores all operational
information (e-keying, hot-swap state, last events to be queued, graceful shutdown timeout,
latest pin settings and so on) in non-volatile storage.
9.3.1.2
In Application Programming (IAP) Component
The BMR-A2F-AMCc IPMI building block from Pigeon Point is implemented within an FPGA
logic block from Microsemi Inc. Its fabric can be upgraded via an HPM.1 firmware upgrade. This
process is referred to as an In Application Programming (IAP) upgrade.
NOTE: There is no possibility of crisis recovery. Artesyn does not recommend an unnecessary
component upgrade.
9.3.1.3
FPGA Component
The Lattice Glue Logic FPGA is equipped with two SPI flash components; one is called Active,
the other is Backup.
During power-up, the IPMC protects the Active SPI flash by de-selecting it once the FPGA boots
successfully. HPM.1 specific logic updates can be performed only to the Backup SPI flash. By
explicitly prohibiting FPGA logic updates to the Active SPI flash, crisis recovery is guaranteed.
The FPGA flash components cannot accidentally be overwritten.
Information about which FPGA flash is active is provided using the Boot Bank Supervision
Sensor. For more details, see
Besides HPM.1 manual rollback, it is possible to switch the banks without upgrading the HPM.1
firmware. For details see
.
Содержание ATCA-7540
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Страница 28: ...About this Manual 28 ATCA 7540 Installation and Use 6806871A01A ...
Страница 34: ...Safety Notes 34 ATCA 7540 Installation and Use 6806871A01A ...
Страница 66: ...Hardware Preparation and Installation 66 ATCA 7540 Installation and Use 6806871A01A ...
Страница 276: ...Supported IPMI Commands 276 ATCA 7540 Installation and Use 6806871A01A ...
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