From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Dutile Subject: Re: [PATCH v2 0/2] ACPI / PCI: Fix _PRT lookup for ARI enabled devices Date: Wed, 27 May 2015 11:28:42 -0400 Message-ID: <5565E2AA.5030705@redhat.com> References: <20150526210927.7537.55656.stgit@gimli.home> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([209.132.183.28]:57748 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751143AbbE0P2q (ORCPT ); Wed, 27 May 2015 11:28:46 -0400 In-Reply-To: <20150526210927.7537.55656.stgit@gimli.home> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alex Williamson , linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org Cc: bhelgaas@google.com, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, lenb@kernel.org On 05/26/2015 05:11 PM, Alex Williamson wrote: > v2: don't modify entry->id.device > > In most cases we only use ARI with SR-IOV VFs, which do not support > INTx and therefore never hit this problem. However, some non-SR-IOV > implementations create multiple PFs, extending beyond the standard > 3-bit function numbers with ARI, and do support INTx for those > additional functions. This can happen with Solarflare SFC9120 > adapters. The host driver typically doesn't use INTx, so we also > haven't noticed this problem on bare metal, but when we attempt to > assign the device to a VM using vfio-pci, we fail trying to setup > default INTx signaling. Thanks, > > Alex > > --- > > Alex Williamson (2): > PCI: Move pci_ari_enabled() to global header > ACPI / PCI: Account for ARI in _PRT lookups > > > drivers/acpi/pci_irq.c | 2 +- > drivers/pci/pci.h | 11 ----------- > include/linux/pci.h | 11 +++++++++++ > 3 files changed, 12 insertions(+), 12 deletions(-) > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Feel free to add my Reviewed-by / Acked-by -dd