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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, yliu@fridaylinux.org, jfreiman@redhat.com,
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Cc: mst@redhat.com, vkaplans@redhat.com, jasowang@redhat.com,
Maxime Coquelin <maxime.coquelin@redhat.com>
Date: Thu, 31 Aug 2017 11:50:08 +0200
Message-Id: <20170831095023.21037-7-maxime.coquelin@redhat.com>
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Subject: [dpdk-dev] [PATCH 06/21] vhost: declare missing IOMMU-related
definitions for old kernels
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These defines and enums have been introduced in upstream kernel v4.8,
and backported to RHEL 7.4.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
lib/librte_vhost/vhost.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 2340b0c2a..5c9d9316a 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -132,6 +132,37 @@ struct vhost_virtqueue {
#define VIRTIO_NET_F_MTU 3
#endif
+/* Declare IOMMU related bits for older kernels */
+#ifndef VIRTIO_F_IOMMU_PLATFORM
+
+#define VIRTIO_F_IOMMU_PLATFORM 33
+
+struct vhost_iotlb_msg {
+ __u64 iova;
+ __u64 size;
+ __u64 uaddr;
+#define VHOST_ACCESS_RO 0x1
+#define VHOST_ACCESS_WO 0x2
+#define VHOST_ACCESS_RW 0x3
+ __u8 perm;
+#define VHOST_IOTLB_MISS 1
+#define VHOST_IOTLB_UPDATE 2
+#define VHOST_IOTLB_INVALIDATE 3
+#define VHOST_IOTLB_ACCESS_FAIL 4
+ __u8 type;
+};
+
+#define VHOST_IOTLB_MSG 0x1
+
+struct vhost_msg {
+ int type;
+ union {
+ struct vhost_iotlb_msg iotlb;
+ __u8 padding[64];
+ };
+};
+#endif
+
/*
* Define virtio 1.0 for older kernels
*/
--
2.13.3