Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_eal / linuxapp / eal / eal_vfio.h

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h
new file mode 100644 (file)
index 0000000..f483bf4
--- /dev/null
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.h
@@ -0,0 +1,67 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef EAL_VFIO_H_
+#define EAL_VFIO_H_
+
+/*
+ * determine if VFIO is present on the system
+ */
+#ifdef RTE_EAL_VFIO
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
+#include <linux/vfio.h>
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
+#define RTE_PCI_MSIX_TABLE_BIR    0x7
+#define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
+#define RTE_PCI_MSIX_FLAGS_QSIZE  0x07ff
+#else
+#define RTE_PCI_MSIX_TABLE_BIR    PCI_MSIX_TABLE_BIR
+#define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
+#define RTE_PCI_MSIX_FLAGS_QSIZE  PCI_MSIX_FLAGS_QSIZE
+#endif
+
+#define RTE_VFIO_TYPE1 VFIO_TYPE1_IOMMU
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
+#define RTE_VFIO_NOIOMMU 8
+#else
+#define RTE_VFIO_NOIOMMU VFIO_NOIOMMU_IOMMU
+#endif
+
+#define VFIO_PRESENT
+#endif /* kernel version */
+#endif /* RTE_EAL_VFIO */
+
+#endif /* EAL_VFIO_H_ */