Attachment 628292 Details for Bug 865736 – (proposed dom0 patch) xen PV passthru: assign SR-IOV virtual functions to separate virtual slots

[patch] (proposed dom0 patch) xen PV passthru: assign SR-IOV virtual functions to separate virtual slots

0001-xen-PV-passthru-assign-SR-IOV-virtual-functions-to-s.patch (text/plain), 1.87 KB, created by Laszlo Ersek on 2012-10-16 17:15:57 UTC

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Creator: Laszlo Ersek

Created: 2012-10-16 17:15:57 UTC

Size: 1.87 KB

patch

obsolete

>From 5b00aad14f32e1901cce4f74f970a17661c4b439 Mon Sep 17 00:00:00 2001
>From: Laszlo Ersek <lersek@redhat.com>
>Date: Tue, 16 Oct 2012 18:44:16 +0200
>Subject: [RHEL5.9 Xen PATCH] xen PV passthru: assign SR-IOV virtual functions to separate virtual slots
>
>
>Signed-off-by: Laszlo Ersek <lersek@redhat.com>
>---
> drivers/xen/pciback/vpci.c |   33 +++++++++++++++++++--------------
> 1 files changed, 19 insertions(+), 14 deletions(-)
>
>diff --git a/drivers/xen/pciback/vpci.c b/drivers/xen/pciback/vpci.c
>index 84bc4b9..106e7ae 100644
>--- a/drivers/xen/pciback/vpci.c
>+++ b/drivers/xen/pciback/vpci.c
>@@ -88,20 +88,25 @@ int pciback_add_pci_dev(struct pciback_device *pdev, struct pci_dev *dev)
> 
> 	spin_lock_irqsave(&vpci_dev->lock, flags);
> 
>-	/* Keep multi-function devices together on the virtual PCI bus */
>-	for (slot = 0; slot < PCI_SLOT_MAX; slot++) {
>-		if (!list_empty(&vpci_dev->dev_list[slot])) {
>-			t = list_entry(list_first(&vpci_dev->dev_list[slot]),
>-				       struct pci_dev_entry, list);
>-
>-			if (match_slot(dev, t->dev)) {
>-				pr_info("pciback: vpci: %s: "
>-					"assign to virtual slot %d func %d\n",
>-					pci_name(dev), slot,
>-					PCI_FUNC(dev->devfn));
>-				list_add_tail(&dev_entry->list,
>-					      &vpci_dev->dev_list[slot]);
>-				goto unlock;
>+	/*
>+	 * Keep multi-function devices together on the virtual PCI bus, except
>+	 * virtual functions.
>+	 */
>+	if (!dev->is_virtfn) {
>+		for (slot = 0; slot < PCI_SLOT_MAX; slot++) {
>+			if (!list_empty(&vpci_dev->dev_list[slot])) {
>+				t = list_entry(list_first(&vpci_dev->dev_list[slot]),
>+					       struct pci_dev_entry, list);
>+
>+				if (match_slot(dev, t->dev)) {
>+					pr_info("pciback: vpci: %s: "
>+						"assign to virtual slot %d func %d\n",
>+						pci_name(dev), slot,
>+						PCI_FUNC(dev->devfn));
>+					list_add_tail(&dev_entry->list,
>+						      &vpci_dev->dev_list[slot]);
>+					goto unlock;
>+				}
> 			}
> 		}
> 	}
>-- 
>1.7.1
>

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Attachments on bug 865736: 628089 | 628112 | 628292 | 628739