NIC Subsystem Management

Since the standard IPMItool commands do not cover all functionality, a set of custom NVIDIA IPMItool raw commands is available to enable configuring the NIC subsystem on the DPU directly.

IPMItool raw commands follow the following format:

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            ipmitool -C 17 -I lanplus -H <bmc_ip_addr> -U <username> -P <password> raw <netfunc> <cmd> <data>

Where:

netfunc – network function which identifies the functional message class, and clusters IPMI commands into sets
cmd – one byte command within a network function
data – optional element which provides additional parameters for a request or response message

The following table lists the supported IPMItool raw commands:

netfunc

cmd

data

Description

0x32

0x9A

N/A

Get external host privileges.

Prints current state for all fields:

Byte	Field
0	`HOST_PRIV_FLASH_ACCESS`
1	`HOST_PRIV_FW_UPDATE`
2	`HOST_PRIV_NIC_RESET`
3	`HOST_PRIV_NV_GLOBAL`
4	`HOST_PRIV_NV_HOST`
5	`HOST_PRIV_NV_INTERNAL_CPU`
6	`HOST_PRIV_NV_PORT`
7	`HOST_PRIV_PCC_UPDATE`

Each state is represented by binary byte in order.

00 – Default
01 – Enabled
02 – Disabled

0x32

0x9B

Byte0 Byte1

Set external host privilege.

Byte0 selects privilege according to the following table:

Byte	Field
0	`HOST_PRIV_FLASH_ACCESS`
1	`HOST_PRIV_FW_UPDATE`
2	`HOST_PRIV_NIC_RESET`
3	`HOST_PRIV_NV_GLOBAL`
4	`HOST_PRIV_NV_HOST`
5	`HOST_PRIV_NV_INTERNAL_CPU`
6	`HOST_PRIV_NV_PORT`
7	`HOST_PRIV_PCC_UPDATE`

Byte1 is the value being set.

Supported values:

00 – Default
01 – Enabled
02 – Disabled

Note

Currently, firmware does not support the parameters HOST_PRIV_FLASH_ACCESS and HOST_PRIV_PCC_UPDATE. Their value should stay as DEVICE_DEFAULT.
The parameter HOST_PRIV_NV_INTERNAL_CPU should either equal the parameter HOST_PRIV_NV_GLOBAL or one of them should be set to DEVICE_DEFAULT.
If the parameter HOST_PRIV_FLASH_ACCESS is not set to DEVICE_DEFAULT then the following parameters should all be set to DEVICE_DEFAULT or be equal to the value of HOST_PRIV_FLASH_ACCESS: HOST_PRIV_NV_HOST, HOST_PRIV_NV_PORT, HOST_PRIV_NV_GLOBAL, HOST_PRIV_NV_INTERNAL_CPU, HOST_PRIV_PCC_UPDATE, HOST_PRIV_FW_UPDATE.

0x32

0x9C

N/A

Get SmartNIC mode. Prints current configuration: INTERNAL_CPU_OFFLOAD_ENGINE.

00 – Disabled
01 – Enabled

0x32

0x9D

Byte0

Set SmartNIC mode (INTERNAL_CPU_OFFLOAD_ENGINE) to Byte0.

Supported values:

00 – Disabled
01 – Enabled

0x32

0x9E

N/A

Get host access. Prints current HOST_PRIV_RSHIM.

00 – Disabled
01 – Enabled

0x32

0x9F

Byte0

Set host access. Sets HOST_PRIV_RSHIM to Byte0.

Supported values:

00 – Disabled
01 – Enabled

0x32

0xA2

N/A

Query strap options. Prints current state for all fields:

Byte	Field
0	`VERSION`
1	`DISABLE_INBAND_RECOVER_VALUE`
2	`PRIMARY_IS_PCORE_1_VALUE`
3	`2PCORE_ACTIVE_VALUE`
4	`SOCKET_DIRECT_VALUE`
5	`PCI_REVERSAL_VALUE`
6	`PCI_PARTITION_1_VALUE`
7	`PCI_PARTITION_0_VALUE`
8	`OSC_FREQ_1_VALUE`
9	`OSC_FREQ_0_VALUE`
10	`CORE_BYPASS_N_VALUE`
11	`FNP_VALUE`
12	`DISABLE_INBAND_RECOVER_VALUE`
13	`PRIMARY_IS_PCORE_1_MASK`
14	`2PCORE_ACTIVE_MASK`
15	`SOCKET_DIRECT_MASK`
16	`PCI_REVERSAL_MASK`
17	`PCI_PARTITION_1_MASK`
18	`PCI_PARTITION_0_MASK`
19	`OSC_FREQ_1_MASK`
20	`OSC_FREQ_0_MASK`
21	`CORE_BYPASS_N_MASK`
22	`FNP_MASK`

Each state is represented by binary byte in order.

Supported values:

00 – Disabled
01 – Enabled

0x32

0xA3

N/A

Get SmartNIC OS State.

00 – BootRom
01 – BL2
02 – BL31
03 – UEFI
04 – OsStarting
05 – OsIsRunning
06 – LowPowerStandby
07 – FirmwareUpdateInProgress
08 – OsCrashDumpInProgress
09 – OsCrashDumpIsComplete
0A – FWFaultCrashDumpInProgress
0B – FWFaultCrashDumpIsComplete
0C – Invalid

Changing Operation Mode

netfunc	cmd	data	Description
`0x32`	`0x9D`	`0x1`	Change to DPU mode
`0x32`	`0x9D`	`0x0`	Change to NIC mode

Enable/Disable RShim from Host

netfunc	cmd	data	Description
`0x32`	`0x9F`	`0x1`	Enable RShim from host
`0x32`	`0x9F`	`0x0`	Disable RShim from host

NIC Subsystem Management

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Changing Operation Mode

Enable/Disable RShim from Host