From: Huawei Xie <huawei.xie@intel.com>
Date: Wed, 8 Oct 2014 18:54:51 +0000 (+0800)
Subject: vhost: move address translation function
X-Git-Tag: spdx-start~10299
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=7f456f6d619af682655b519f7cc9b0c2873c2c03;p=dpdk.git

vhost: move address translation function

Signed-off-by: Huawei Xie <huawei.xie@intel.com>
Acked-by: Changchun Ouyang <changchun.ouyang@intel.com>
[Thomas: split from a previous patch]
---

diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h
index b06436eecb..5bb429a159 100644
--- a/lib/librte_vhost/rte_virtio_net.h
+++ b/lib/librte_vhost/rte_virtio_net.h
@@ -124,4 +124,26 @@ int deinit_virtio_net(void);
 
 struct vhost_net_device_ops const * get_virtio_net_callbacks(void);
 
+/**
+ * Function to convert guest physical addresses to vhost virtual addresses.
+ * This is used to convert guest virtio buffer addresses.
+ */
+static inline uint64_t __attribute__((always_inline))
+gpa_to_vva(struct virtio_net *dev, uint64_t guest_pa)
+{
+	struct virtio_memory_regions *region;
+	uint32_t regionidx;
+	uint64_t vhost_va = 0;
+
+	for (regionidx = 0; regionidx < dev->mem->nregions; regionidx++) {
+		region = &dev->mem->regions[regionidx];
+		if ((guest_pa >= region->guest_phys_address) &&
+			(guest_pa <= region->guest_phys_address_end)) {
+			vhost_va = region->address_offset + guest_pa;
+			break;
+		}
+	}
+	return vhost_va;
+}
+
 #endif /* _VIRTIO_NET_H_ */
diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c
index b0df32de16..5f48566cea 100644
--- a/lib/librte_vhost/vhost_rxtx.c
+++ b/lib/librte_vhost/vhost_rxtx.c
@@ -56,31 +56,6 @@
 
 #define MAX_PKT_BURST 32 		/* Max burst size for RX/TX */
 
-/*
- * Function to convert guest physical addresses to vhost virtual addresses. This
- * is used to convert virtio buffer addresses.
- */
-static inline uint64_t __attribute__((always_inline))
-gpa_to_vva(struct virtio_net *dev, uint64_t guest_pa)
-{
-	struct virtio_memory_regions *region;
-	uint32_t regionidx;
-	uint64_t vhost_va = 0;
-
-	for (regionidx = 0; regionidx < dev->mem->nregions; regionidx++) {
-		region = &dev->mem->regions[regionidx];
-		if ((guest_pa >= region->guest_phys_address) &&
-			(guest_pa <= region->guest_phys_address_end)) {
-			vhost_va = region->address_offset + guest_pa;
-			break;
-		}
-	}
-	LOG_DEBUG(VHOST_DATA, "(%"PRIu64") GPA %p| VVA %p\n",
-		dev->device_fh, (void*)(uintptr_t)guest_pa, (void*)(uintptr_t)vhost_va);
-
-	return vhost_va;
-}
-
 /*
  * This function adds buffers to the virtio devices RX virtqueue. Buffers can
  * be received from the physical port or from another virtio device. A packet