#include <rte_log.h>
#include <rte_ether.h>
-#include "rte_virtio_net.h"
+#include "rte_vhost.h"
/* Used to indicate that the device is running on a data core */
#define VIRTIO_DEV_RUNNING 1
struct ether_addr mac;
uint16_t mtu;
- struct virtio_net_device_ops const *notify_ops;
+ struct vhost_device_ops const *notify_ops;
uint32_t nr_guest_pages;
uint32_t max_guest_pages;
struct guest_page *guest_pages;
} __rte_cache_aligned;
+
+#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)
+{
+ __sync_fetch_and_or_8(addr, (1U << nr));
+}
+
+static __rte_always_inline void
+vhost_log_page(uint8_t *log_base, uint64_t page)
+{
+ vhost_set_bit(page % 8, &log_base[page / 8]);
+}
+
+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;
+ }
+}
+
+static __rte_always_inline void
+vhost_log_used_vring(struct virtio_net *dev, struct vhost_virtqueue *vq,
+ uint64_t offset, uint64_t len)
+{
+ vhost_log_write(dev, vq->log_guest_addr + offset, len);
+}
+
/* Macros for printing using RTE_LOG */
#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
#define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER1
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;
void vhost_set_ifname(int, const char *if_name, unsigned int if_len);
void vhost_enable_dequeue_zero_copy(int vid);
-struct virtio_net_device_ops const *vhost_driver_callback_get(const char *path);
+struct vhost_device_ops const *vhost_driver_callback_get(const char *path);
/*
* Backend-specific cleanup.