David, Shyamala,
Seems it is an ipmidirect issue.
I compiled hpi_shell with commented saHpiDiscover() call.
Then tried connecting it to OpenHPI daemon 2.16 and 2.17 with PPS plug-in
right after daemon startup.
In 2.16 there was about 10 second gap before events began to deliver.
In 2.17 events began deliver immediately.
And all events were delivered in both cases.
Another ipmidirect issue: the first hot swap event from any resource is
not delivered.
Anton Pak
On Wed, 05 Oct 2011 18:26:07 +0400, David McKinley <[email protected]>
wrote:
> Hi Shyamala,
>
> That is not the behavior I see. Does this maybe depend on the plugin?
> I am using the ipmidirect plugin, connected via LAN to an IPMI 2.0
> compliant chassis manager in a non-ATCA platform.
>
> First of all, it is impossible to subscribe for events before starting
> the daemon, because an attempt to call saHpiSessionOpen() returns an
> error, SA_ERR_HPI_NO_RESPONSE.
>
> After starting the daemon, it continues to return that error to
> saHpiSessionOpen() for some time. I keep retrying the call, until
> eventually it returns SA_OK.
>
> At that point, I immediately call saHpiSubscribe(), and then alternately
> call saHpiEventGet() and saHpiRptEntryGet(). saHpiEventGet() always
> returns SA_ERR_HPI_TIMEOUT, indicating no events are available to read.
> saHpiRptEntryGet() returns SA_ERR_HPI_NOT_PRESENT indicating that no RPT
> entries are present.
>
> After some time (30 seconds to a minute), saHpiEventGet() continues to
> return SA_ERR_HPI_TIMEOUT - still no events - but, saHpiRptEntryGet()
> now returns the first RPT entry, and I can walk through the entire table.
>
> Thus, all those RPT entries seem to have been added to the table, while
> the session was open and subscribed, but no events were received.
>
> If I call saHpiDiscover() just after the successful saHpiSessionOpen()
> return, it blocks for that 30 seconds to a minute. Calling
> saHpiRptEntryGet() just after it returns, I see that the RPT table is
> filled.
>
> David
>
> From: shyamala openhpi [mailto:[email protected]]
> Sent: Wednesday, October 05, 2011 7:34 AM
> To: [email protected]
> Subject: Re: [Openhpi-devel] saHpiDiscover() Required?
>
> Hi David,
>
> Hot-swap or resource-added events will be received if we subscribe for
> the events before starting the openhpid daemon.
>
> Regards,
> Shyamala
> On Wed, Oct 5, 2011 at 1:34 AM, David McKinley
> <[email protected]<mailto:[email protected]>> wrote:
> Hello,
>
> I have just seen a problem with OpenHPI that I thought was fixed years
> ago.
>
> I started up the openhpi daemon as well as a client program. For a
> while, as the daemon was reading SDRs and such, I could not open a
> session. After a while, though, I could. When the session was open, I
> subscribed to receive events, and then tried to access the RPT and found
> it empty. A while later - after more reading of SDRs, FRU data, SELs,
> etc. by the daemon, I checked the RPT again, and it was now populated.
>
>>>> But no hot-swap or resource-added events were received by the open
>>>> session!!! <<<
>
> This would seem to be very bad behavior for an HPI implementation. If a
> user can have a session open, the RPT and RDR tables should never change
> without events being issued.
>
> It seems I can work around this problem by calling saHpiDiscover()
> immediately after opening a session, but according to the HPI
> specification this is explicitly not required. Is this a known bug in
> OpenHPI?
>
> Thanks,
>
> David
>
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