uint64_t log_size;
uint64_t log_base;
uint64_t log_addr;
- struct ether_addr mac;
+ struct rte_ether_addr mac;
uint16_t mtu;
struct vhost_device_ops const *notify_ops;
wrap_counter != !!(flags & VRING_DESC_F_USED);
}
-#define VHOST_LOG_PAGE 4096
-
-/*
- * Atomically set a bit in memory.
- */
-static __rte_always_inline void
-vhost_set_bit(unsigned int nr, volatile uint8_t *addr)
-{
-#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION < 70100)
- /*
- * __sync_ built-ins are deprecated, but __atomic_ ones
- * are sub-optimized in older GCC versions.
- */
- __sync_fetch_and_or_1(addr, (1U << nr));
-#else
- __atomic_fetch_or(addr, (1U << nr), __ATOMIC_RELAXED);
-#endif
-}
-
-static __rte_always_inline void
-vhost_log_page(uint8_t *log_base, uint64_t page)
-{
- vhost_set_bit(page % 8, &log_base[page / 8]);
-}
+void __vhost_log_cache_write(struct virtio_net *dev,
+ struct vhost_virtqueue *vq,
+ uint64_t addr, uint64_t len);
+void __vhost_log_cache_sync(struct virtio_net *dev,
+ struct vhost_virtqueue *vq);
+void __vhost_log_write(struct virtio_net *dev, uint64_t addr, uint64_t len);
static __rte_always_inline void
vhost_log_write(struct virtio_net *dev, uint64_t addr, uint64_t len)
{
- uint64_t page;
-
- if (likely(((dev->features & (1ULL << VHOST_F_LOG_ALL)) == 0) ||
- !dev->log_base || !len))
- return;
-
- if (unlikely(dev->log_size <= ((addr + len - 1) / VHOST_LOG_PAGE / 8)))
- return;
-
- /* To make sure guest memory updates are committed before logging */
- rte_smp_wmb();
-
- page = addr / VHOST_LOG_PAGE;
- while (page * VHOST_LOG_PAGE < addr + len) {
- vhost_log_page((uint8_t *)(uintptr_t)dev->log_base, page);
- page += 1;
- }
+ if (unlikely(dev->features & (1ULL << VHOST_F_LOG_ALL)))
+ __vhost_log_write(dev, addr, len);
}
static __rte_always_inline void
vhost_log_cache_sync(struct virtio_net *dev, struct vhost_virtqueue *vq)
{
- unsigned long *log_base;
- int i;
-
- if (likely(((dev->features & (1ULL << VHOST_F_LOG_ALL)) == 0) ||
- !dev->log_base))
- return;
-
- rte_smp_wmb();
-
- log_base = (unsigned long *)(uintptr_t)dev->log_base;
-
- for (i = 0; i < vq->log_cache_nb_elem; i++) {
- struct log_cache_entry *elem = vq->log_cache + i;
-
-#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION < 70100)
- /*
- * '__sync' builtins are deprecated, but '__atomic' ones
- * are sub-optimized in older GCC versions.
- */
- __sync_fetch_and_or(log_base + elem->offset, elem->val);
-#else
- __atomic_fetch_or(log_base + elem->offset, elem->val,
- __ATOMIC_RELAXED);
-#endif
- }
-
- rte_smp_wmb();
-
- vq->log_cache_nb_elem = 0;
-}
-
-static __rte_always_inline void
-vhost_log_cache_page(struct virtio_net *dev, struct vhost_virtqueue *vq,
- uint64_t page)
-{
- uint32_t bit_nr = page % (sizeof(unsigned long) << 3);
- uint32_t offset = page / (sizeof(unsigned long) << 3);
- int i;
-
- for (i = 0; i < vq->log_cache_nb_elem; i++) {
- struct log_cache_entry *elem = vq->log_cache + i;
-
- if (elem->offset == offset) {
- elem->val |= (1UL << bit_nr);
- return;
- }
- }
-
- if (unlikely(i >= VHOST_LOG_CACHE_NR)) {
- /*
- * No more room for a new log cache entry,
- * so write the dirty log map directly.
- */
- rte_smp_wmb();
- vhost_log_page((uint8_t *)(uintptr_t)dev->log_base, page);
-
- return;
- }
-
- vq->log_cache[i].offset = offset;
- vq->log_cache[i].val = (1UL << bit_nr);
- vq->log_cache_nb_elem++;
+ if (unlikely(dev->features & (1ULL << VHOST_F_LOG_ALL)))
+ __vhost_log_cache_sync(dev, vq);
}
static __rte_always_inline void
vhost_log_cache_write(struct virtio_net *dev, struct vhost_virtqueue *vq,
uint64_t addr, uint64_t len)
{
- uint64_t page;
-
- if (likely(((dev->features & (1ULL << VHOST_F_LOG_ALL)) == 0) ||
- !dev->log_base || !len))
- return;
-
- if (unlikely(dev->log_size <= ((addr + len - 1) / VHOST_LOG_PAGE / 8)))
- return;
-
- page = addr / VHOST_LOG_PAGE;
- while (page * VHOST_LOG_PAGE < addr + len) {
- vhost_log_cache_page(dev, vq, page);
- page += 1;
- }
+ if (unlikely(dev->features & (1ULL << VHOST_F_LOG_ALL)))
+ __vhost_log_cache_write(dev, vq, addr, len);
}
static __rte_always_inline void
uint64_t __vhost_iova_to_vva(struct virtio_net *dev, struct vhost_virtqueue *vq,
uint64_t iova, uint64_t *len, uint8_t perm);
+void *vhost_alloc_copy_ind_table(struct virtio_net *dev,
+ struct vhost_virtqueue *vq,
+ uint64_t desc_addr, uint64_t desc_len);
int vring_translate(struct virtio_net *dev, struct vhost_virtqueue *vq);
void vring_invalidate(struct virtio_net *dev, struct vhost_virtqueue *vq);
eventfd_write(vq->callfd, (eventfd_t)1);
}
-static __rte_always_inline void *
-alloc_copy_ind_table(struct virtio_net *dev, struct vhost_virtqueue *vq,
- uint64_t desc_addr, uint64_t desc_len)
-{
- void *idesc;
- uint64_t src, dst;
- uint64_t len, remain = desc_len;
-
- idesc = rte_malloc(__func__, desc_len, 0);
- if (unlikely(!idesc))
- return 0;
-
- dst = (uint64_t)(uintptr_t)idesc;
-
- while (remain) {
- len = remain;
- src = vhost_iova_to_vva(dev, vq, desc_addr, &len,
- VHOST_ACCESS_RO);
- if (unlikely(!src || !len)) {
- rte_free(idesc);
- return 0;
- }
-
- rte_memcpy((void *)(uintptr_t)dst, (void *)(uintptr_t)src, len);
-
- remain -= len;
- dst += len;
- desc_addr += len;
- }
-
- return idesc;
-}
-
static __rte_always_inline void
free_ind_table(void *idesc)
{
git.droids-corp.org / dpdk.git / blobdiff