Len Brown wrote:
Cory,
acpi_find_bmc() appears to be searching for
multiple SPMI tables in the RSDT and running
try_init_acpi() on each of them
until it doesn't find any more.
Is that the intent?
Are here systems with multiple SPMI tables?
I'm not sure about ACPI, but I know there are system with multiple
SMBIOS table entries for management controllers, and I know there are
system with multiple multiple management controller interfaces (and
multiple management controllers with interfaces). The current table for
SPMI can only support one interface, so I don't know how you could
represent more than one..
static __devinit void acpi_find_bmc(void)
{
acpi_status status;
struct SPMITable *spmi;
int i;
if (acpi_disabled)
return;
if (acpi_failure)
return;
for (i = 0; ; i++) {
status = acpi_get_table(ACPI_SIG_SPMI, i+1,
(struct acpi_table_header **)&spmi);
if (status != AE_OK)
return;
try_init_acpi(spmi);
}
}
I speculated recently that the only table signature
that is (supposed to be) repeated in the RSDT is an SSDT.
Maybe that speculation is wrong if there can be multiple SPMI tables...
I don't know ACPI that well, but the IPMI spec states that in the case
of multiple interfaces, a unique SPMI table should be provided for each
of those interfaces. So the IPMI spec seems to require support more
than one.
-Corey
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