Hi Abner,
> If we use PCD here, then we have to also update CreateEventEx in the
> RedfishFeatureCoreEntryPoint. Create the event using
> REDFISH_FEATURE_CORE_TPL.
Yes, I also modify RedfishFeatureCoreEntryPoint in below together.
> }
>
> /**
> @@ -670,7 +682,7 @@ RedfishFeatureCoreEntryPoint (
>
> Status = gBS->CreateEventEx (
> EVT_NOTIFY_SIGNAL,
> - TPL_CALLBACK,
> + REDFISH_FEATURE_CORE_TPL,
> RedfishFeatureDriverStartup,
> (CONST VOID *)&mFeatureDriverStartupContext,
> EventGuid,
Regards,
Nickle
> -----Original Message-----
> From: Chang, Abner <abner.ch...@amd.com>
> Sent: Wednesday, December 6, 2023 8:08 PM
> To: Nickle Wang <nick...@nvidia.com>; devel@edk2.groups.io
> Cc: Igor Kulchytskyy <ig...@ami.com>; Nick Ramirez <nrami...@nvidia.com>
> Subject: RE: [edk2-redfish-client][PATCH]
> RedfishClientPkg/RedfishFeatureCoreDxe: fix Redfish event issue.
>
> External email: Use caution opening links or attachments
>
>
> [AMD Official Use Only - General]
>
> Hi Nickle, one comment below.
>
> > -----Original Message-----
> > From: Nickle Wang <nick...@nvidia.com>
> > Sent: Wednesday, December 6, 2023 4:57 PM
> > To: devel@edk2.groups.io
> > Cc: Chang, Abner <abner.ch...@amd.com>; Igor Kulchytskyy
> > <ig...@ami.com>; Nick Ramirez <nrami...@nvidia.com>
> > Subject: [edk2-redfish-client][PATCH]
> > RedfishClientPkg/RedfishFeatureCoreDxe: fix Redfish event issue.
> >
> > Caution: This message originated from an External Source. Use proper
> > caution when opening attachments, clicking links, or responding.
> >
> >
> > RedfishFeatureDriverStartup is callback function at TPL_CALLBACK
> > level. In this function, Redfish events are signaled. However, Redfish
> > events are created in TPL_CALLBACK level too. As the result, Redfish
> > events cannot be invoked in desired sequence. Decrease the TPL to
> > TPL_APPLICATION level inside RedfishFeatureDriverStartup and restore
> > it to TPL_CALLBACK level before leaving this function. Now, Redfish
> > events are called in correct sequence.
> >
> > Signed-off-by: Nickle Wang <nick...@nvidia.com>
> > Cc: Abner Chang <abner.ch...@amd.com>
> > Cc: Igor Kulchytskyy <ig...@ami.com>
> > Cc: Nick Ramirez <nrami...@nvidia.com>
> > ---
> > .../RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h | 1 +
> > .../RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c | 14 +++++++++++++-
> > 2 files changed, 14 insertions(+), 1 deletion(-)
> >
> > diff --git
> > a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
> > b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
> > index acefa41b..de08d79d 100644
> > --- a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
> > +++ b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.h
> > @@ -33,6 +33,7 @@
> > #define NodeIsCollectionLeftBracket L'{'
> > #define NodeIsCollectionRightBracket L'}'
> > #define NodeIsCollectionSymbol L"/{}"
> > +#define REDFISH_FEATURE_CORE_TPL TPL_CALLBACK
> >
> > typedef struct _REDFISH_FEATURE_INTERNAL_DATA
> > REDFISH_FEATURE_INTERNAL_DATA; struct
> _REDFISH_FEATURE_INTERNAL_DATA
> > { diff --git
> > a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
> > b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
> > index f3188ddf..c0c3ec47 100644
> > --- a/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
> > +++ b/RedfishClientPkg/RedfishFeatureCoreDxe/RedfishFeatureCoreDxe.c
> > @@ -272,6 +272,13 @@ RedfishFeatureDriverStartup (
> > return;
> > }
> >
> > + //
> > + // Lower the TPL to TPL_APPLICATION so that // Redfish event and
> > + report status code can be // triggered // gBS->RestoreTPL
> > + (TPL_APPLICATION);
> > +
> > //
> > // Reset PcdRedfishSystemRebootRequired flag
> > //
> > @@ -321,6 +328,11 @@ RedfishFeatureDriverStartup (
> > gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
> > CpuDeadLoop ();
> > }
> > +
> > + //
> > + // Restore to the TPL where this callback handler is called.
> > + //
> > + gBS->RaiseTPL (REDFISH_FEATURE_CORE_TPL);
> If we use PCD here, then we have to also update CreateEventEx in the
> RedfishFeatureCoreEntryPoint. Create the event using
> REDFISH_FEATURE_CORE_TPL.
>
> Abner
>
>
> > }
> >
> > /**
> > @@ -670,7 +682,7 @@ RedfishFeatureCoreEntryPoint (
> >
> > Status = gBS->CreateEventEx (
> > EVT_NOTIFY_SIGNAL,
> > - TPL_CALLBACK,
> > + REDFISH_FEATURE_CORE_TPL,
> > RedfishFeatureDriverStartup,
> > (CONST VOID *)&mFeatureDriverStartupContext,
> > EventGuid,
> > --
> > 2.17.1
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