diff options
Diffstat (limited to 'lib/librte_vhost/vhost.h')
| -rw-r--r-- | lib/librte_vhost/vhost.h | 19 |
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; |