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[1/4] powerpc/eeh: Allow to freeze PE in eeh_pe_set_option()

Message ID 1474460130-8316-2-git-send-email-gwshan@linux.vnet.ibm.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Gavin Shan Sept. 21, 2016, 12:15 p.m. UTC 
Function eeh_pe_set_option() is used to apply the requested options
(enable, disable, unfreeze) in EEH virtualization path. The semantics
of this function isn't complete until freezing is supported.

This allows to freeze the indicated PE. The new semantics is going to
be used in PCI surprise hot remove path, to freeze removed PCI devices
(PE) to avoid unexpected EEH error reporting.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
---
 arch/powerpc/kernel/eeh.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 7429556..0699f15 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1502,6 +1502,7 @@  int eeh_pe_set_option(struct eeh_pe *pe, int option)
 		break;
 	case EEH_OPT_THAW_MMIO:
 	case EEH_OPT_THAW_DMA:
+	case EEH_OPT_FREEZE_PE:
 		if (!eeh_ops || !eeh_ops->set_option) {
 			ret = -ENOENT;
 			break;