HP Moonshot 1500 Chassis User Manual download pdf (Page 61)

The active (volatile) settings can be overwritten to allow run-time software to make temporary

changes to the access. The volatile settings are overwritten from the non-volatile settings whenever

the system is reset or transitions to a powered off state.

An implementation can elect to provide a subset of the possible access mode options. If a given

access mode is not supported, the command-specific completion code 83h (access mode not

supported) must be returned.

Table 35 Set channel access command request and response data

Data fieldRequest data

byte number

[7:4] — Reserved1

[3:0] — Channel number

Do not set or change channel access.00b =[7:6]2

Set non-volatile channel access according to bits [5:0].01b =

Set volatile (active) setting of channel access according to bits [5:0].10b =

Reserved.11b =

PEF alerting enable/disable. This bit globally gates whether PEF alerts can be issued from

the given channel. Setting this to enable PEF alerting is a necessary part of enabling alerts

[5]

for the channel, but for alerts to be generated, the PEF and channel configuration must

also be set to enable alerting. Setting this bit to enable does not alter the PEF configuration

or the alerting settings in the channel's configuration parameters. For example, if PEF is

not configured for generating an alert, enabling PEF alerting with this bit does not change

that configuration. Setting this bit to disable blocks PEF -generated alerts regardless of the

PEF and channel configuration parameters.

Enable PEF alerting.0b =

Disable PEF alerting on this channel. The alert immediate command

can still be used to generate alerts.

1b =

Per-message authentication enable/disable. This bit is ignored for channels (such as

serial/modem) that do not support per-message authentication.

[4]

Enable per-message authentication.0b =

Disable per-message authentication. Authentication is required to activate

any session on this channel, but authentication is not used on subsequent

packets for the session.

1b =

User level authentication enable/disable. Optional. Return a CCh invalid data field error

completion code if an attempt is made to set this bit, but the option is not supported.

[3]

Enable user level authentication. All user level commands are to be

authenticated per the authentication type that was negotiated when the

session was activated.

0b =

Disable user level authentication. Allow user level commands to be executed

without being authenticated.

1b =

If the option to disable user level command authentication is accepted, the

MC will accept packets with authentication type set to none if they contain

user level commands.

For outgoing packets, the MC returns responses with the same authentication

type that was used for the request.

Access mode for IPMI messaging. (PEF alerting is enabled/disabled separately from IPMI

messaging, see bit 5).

[2:0]

Disabled. Channel disabled for IPMI messaging.000b =

Pre-boot only. Channel only available when system is in a powered down

state or in BIOS before start of boot.

001b =

Standard command specification 61

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