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authorLuca Boccassi <luca.boccassi@gmail.com>2017-08-16 18:42:05 +0100
committerLuca Boccassi <luca.boccassi@gmail.com>2017-08-16 18:46:04 +0100
commitf239aed5e674965691846e8ce3f187dd47523689 (patch)
treea153a3125c6e183c73871a8ecaa4b285fed5fbd5 /lib/librte_vhost/vhost.h
parentbf7567fd2a5b0b28ab724046143c24561d38d015 (diff)
New upstream version 17.08
Change-Id: I288b50990f52646089d6b1f3aaa6ba2f091a51d7 Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_vhost/vhost.h')
-rw-r--r--lib/librte_vhost/vhost.h19
1 files changed, 14 insertions, 5 deletions
diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index ddd8a9c4..6fe72aeb 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -201,13 +201,22 @@ struct virtio_net {
#define VHOST_LOG_PAGE 4096
-static inline void __attribute__((always_inline))
+/*
+ * Atomically set a bit in memory.
+ */
+static __rte_always_inline void
+vhost_set_bit(unsigned int nr, volatile uint8_t *addr)
+{
+ __sync_fetch_and_or_8(addr, (1U << nr));
+}
+
+static __rte_always_inline void
vhost_log_page(uint8_t *log_base, uint64_t page)
{
- log_base[page / 8] |= 1 << (page % 8);
+ vhost_set_bit(page % 8, &log_base[page / 8]);
}
-static inline void __attribute__((always_inline))
+static __rte_always_inline void
vhost_log_write(struct virtio_net *dev, uint64_t addr, uint64_t len)
{
uint64_t page;
@@ -229,7 +238,7 @@ vhost_log_write(struct virtio_net *dev, uint64_t addr, uint64_t len)
}
}
-static inline void __attribute__((always_inline))
+static __rte_always_inline void
vhost_log_used_vring(struct virtio_net *dev, struct vhost_virtqueue *vq,
uint64_t offset, uint64_t len)
{
@@ -272,7 +281,7 @@ extern uint64_t VHOST_FEATURES;
extern struct virtio_net *vhost_devices[MAX_VHOST_DEVICE];
/* Convert guest physical address to host physical address */
-static inline phys_addr_t __attribute__((always_inline))
+static __rte_always_inline phys_addr_t
gpa_to_hpa(struct virtio_net *dev, uint64_t gpa, uint64_t size)
{
uint32_t i;