From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752586Ab1GYUJi (ORCPT ); Mon, 25 Jul 2011 16:09:38 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:33734 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751721Ab1GYUJg (ORCPT ); Mon, 25 Jul 2011 16:09:36 -0400 From: Ram Pai To: jbarnes@virtuousgeek.org Cc: torvalds@linux-foundation.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, yinghai@kernel.org, bhutchings@solarflare.com, socketcan@hartkopp.net, bhelgaas@google.com, linux@dominikbrodowski.net, linuxram@us.ibm.com Subject: [PATCH 3/5 v3] PCI: make SRIOV resources optional Date: Mon, 25 Jul 2011 13:08:40 -0700 Message-Id: <1311624522-30242-4-git-send-email-linuxram@us.ibm.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1311624522-30242-1-git-send-email-linuxram@us.ibm.com> References: <1311624522-30242-1-git-send-email-linuxram@us.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yinghai Lu From: Yinghai Lu Allocate resources to SRIOV BARs only after all other required resource-requests are satisfied. Dont retry if resource allocation for SRIOV BARs fail. Signed-off-by: Ram Pai Signed-off-by: Yinghai Lu --- drivers/pci/setup-bus.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 73f1f5d..3ac64d6 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -676,6 +676,16 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, if (r->parent || (r->flags & mask) != type) continue; r_size = resource_size(r); +#ifdef CONFIG_PCI_IOV + /* put SRIOV requested res to the optional list */ + if (add_head && i >= PCI_IOV_RESOURCES && + i <= PCI_IOV_RESOURCE_END) { + r->end = r->start - 1; + add_to_list(add_head, dev, r, r_size, 1); + children_add_size += r_size; + continue; + } +#endif /* For bridges size != alignment */ align = pci_resource_alignment(dev, r); order = __ffs(align) - 20; -- 1.7.4.1