From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3skPxS07VmzDrXG for ; Wed, 28 Sep 2016 14:34:35 +1000 (AEST) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u8S4XCS7083942 for ; Wed, 28 Sep 2016 00:34:34 -0400 Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) by mx0a-001b2d01.pphosted.com with ESMTP id 25r1exmrqc-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 28 Sep 2016 00:34:33 -0400 Received: from localhost by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 28 Sep 2016 14:34:31 +1000 Received: from d23relay07.au.ibm.com (d23relay07.au.ibm.com [9.190.26.37]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 94FCF2BB005A for ; Wed, 28 Sep 2016 14:34:29 +1000 (EST) Received: from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138]) by d23relay07.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u8S4YTrx30933066 for ; Wed, 28 Sep 2016 14:34:29 +1000 Received: from d23av02.au.ibm.com (localhost [127.0.0.1]) by d23av02.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u8S4YTgI030164 for ; Wed, 28 Sep 2016 14:34:29 +1000 From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Cc: bhelgaas@google.com, mpe@ellerman.id.au, Gavin Shan Subject: [PATCH v3 1/6] powerpc/eeh: Allow to freeze PE in eeh_pe_set_option() Date: Wed, 28 Sep 2016 14:34:53 +1000 In-Reply-To: <1475037298-19188-1-git-send-email-gwshan@linux.vnet.ibm.com> References: <1475037298-19188-1-git-send-email-gwshan@linux.vnet.ibm.com> Message-Id: <1475037298-19188-2-git-send-email-gwshan@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 --- arch/powerpc/kernel/eeh.c | 1 + 1 file changed, 1 insertion(+) 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; -- 2.1.0