#ifdef RTE_LIBRTE_VHOST_POSTCOPY
#include <linux/userfaultfd.h>
#endif
+#ifdef F_ADD_SEALS /* if file sealing is supported, so is memfd */
+#include <linux/memfd.h>
+#define MEMFD_SUPPORTED
+#endif
#include <rte_common.h>
#include <rte_malloc.h>
#define VIRTIO_MIN_MTU 68
#define VIRTIO_MAX_MTU 65535
+#define INFLIGHT_ALIGNMENT 64
+#define INFLIGHT_VERSION 0x1
+
static const char *vhost_message_str[VHOST_USER_MAX] = {
[VHOST_USER_NONE] = "VHOST_USER_NONE",
[VHOST_USER_GET_FEATURES] = "VHOST_USER_GET_FEATURES",
[VHOST_USER_POSTCOPY_ADVISE] = "VHOST_USER_POSTCOPY_ADVISE",
[VHOST_USER_POSTCOPY_LISTEN] = "VHOST_USER_POSTCOPY_LISTEN",
[VHOST_USER_POSTCOPY_END] = "VHOST_USER_POSTCOPY_END",
+ [VHOST_USER_GET_INFLIGHT_FD] = "VHOST_USER_GET_INFLIGHT_FD",
+ [VHOST_USER_SET_INFLIGHT_FD] = "VHOST_USER_SET_INFLIGHT_FD",
+ [VHOST_USER_SET_STATUS] = "VHOST_USER_SET_STATUS",
+ [VHOST_USER_GET_STATUS] = "VHOST_USER_GET_STATUS",
};
static int send_vhost_reply(int sockfd, struct VhostUserMsg *msg);
static int read_vhost_message(int sockfd, struct VhostUserMsg *msg);
+static void
+close_msg_fds(struct VhostUserMsg *msg)
+{
+ int i;
+
+ for (i = 0; i < msg->fd_num; i++)
+ close(msg->fds[i]);
+}
+
+/*
+ * Ensure the expected number of FDs is received,
+ * close all FDs and return an error if this is not the case.
+ */
+static int
+validate_msg_fds(struct VhostUserMsg *msg, int expected_fds)
+{
+ if (msg->fd_num == expected_fds)
+ return 0;
+
+ VHOST_LOG_CONFIG(ERR,
+ " Expect %d FDs for request %s, received %d\n",
+ expected_fds,
+ vhost_message_str[msg->request.master],
+ msg->fd_num);
+
+ close_msg_fds(msg);
+
+ return -1;
+}
+
static uint64_t
get_blk_size(int fd)
{
dev->mem = NULL;
}
- free(dev->guest_pages);
+ rte_free(dev->guest_pages);
dev->guest_pages = NULL;
if (dev->log_addr) {
dev->log_addr = 0;
}
+ if (dev->inflight_info) {
+ if (dev->inflight_info->addr) {
+ munmap(dev->inflight_info->addr,
+ dev->inflight_info->size);
+ dev->inflight_info->addr = NULL;
+ }
+
+ if (dev->inflight_info->fd >= 0) {
+ close(dev->inflight_info->fd);
+ dev->inflight_info->fd = -1;
+ }
+
+ free(dev->inflight_info);
+ dev->inflight_info = NULL;
+ }
+
if (dev->slave_req_fd >= 0) {
close(dev->slave_req_fd);
dev->slave_req_fd = -1;
dev->postcopy_listening = 0;
}
+static void
+vhost_user_notify_queue_state(struct virtio_net *dev, uint16_t index,
+ int enable)
+{
+ struct rte_vdpa_device *vdpa_dev = dev->vdpa_dev;
+ struct vhost_virtqueue *vq = dev->virtqueue[index];
+
+ /* Configure guest notifications on enable */
+ if (enable && vq->notif_enable != VIRTIO_UNINITIALIZED_NOTIF)
+ vhost_enable_guest_notification(dev, vq, vq->notif_enable);
+
+ if (vdpa_dev && vdpa_dev->ops->set_vring_state)
+ vdpa_dev->ops->set_vring_state(dev->vid, index, enable);
+
+ if (dev->notify_ops->vring_state_changed)
+ dev->notify_ops->vring_state_changed(dev->vid,
+ index, enable);
+}
+
/*
* This function just returns success at the moment unless
* the device hasn't been initialised.
*/
static int
vhost_user_set_owner(struct virtio_net **pdev __rte_unused,
- struct VhostUserMsg *msg __rte_unused,
+ struct VhostUserMsg *msg,
int main_fd __rte_unused)
{
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
return RTE_VHOST_MSG_RESULT_OK;
}
static int
vhost_user_reset_owner(struct virtio_net **pdev,
- struct VhostUserMsg *msg __rte_unused,
+ struct VhostUserMsg *msg,
int main_fd __rte_unused)
{
struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
vhost_destroy_device_notify(dev);
cleanup_device(dev, 0);
struct virtio_net *dev = *pdev;
uint64_t features = 0;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
rte_vhost_driver_get_features(dev->ifname, &features);
msg->payload.u64 = features;
struct virtio_net *dev = *pdev;
uint32_t queue_num = 0;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
rte_vhost_driver_get_queue_num(dev->ifname, &queue_num);
msg->payload.u64 = (uint64_t)queue_num;
uint64_t features = msg->payload.u64;
uint64_t vhost_features = 0;
struct rte_vdpa_device *vdpa_dev;
- int did = -1;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
rte_vhost_driver_get_features(dev->ifname, &vhost_features);
if (features & ~vhost_features) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"(%d) received invalid negotiated features.\n",
dev->vid);
+ dev->flags |= VIRTIO_DEV_FEATURES_FAILED;
+ dev->status &= ~VIRTIO_DEVICE_STATUS_FEATURES_OK;
+
return RTE_VHOST_MSG_RESULT_ERR;
}
* is enabled when the live-migration starts.
*/
if ((dev->features ^ features) & ~(1ULL << VHOST_F_LOG_ALL)) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"(%d) features changed while device is running.\n",
dev->vid);
return RTE_VHOST_MSG_RESULT_ERR;
} else {
dev->vhost_hlen = sizeof(struct virtio_net_hdr);
}
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"negotiated Virtio features: 0x%" PRIx64 "\n", dev->features);
- VHOST_LOG_DEBUG(VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) mergeable RX buffers %s, virtio 1 %s\n",
dev->vid,
(dev->features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ? "on" : "off",
dev->virtqueue[dev->nr_vring] = NULL;
cleanup_vq(vq, 1);
+ cleanup_vq_inflight(dev, vq);
free_vq(dev, vq);
}
}
- did = dev->vdpa_dev_id;
- vdpa_dev = rte_vdpa_get_device(did);
- if (vdpa_dev && vdpa_dev->ops->set_features)
+ vdpa_dev = dev->vdpa_dev;
+ if (vdpa_dev)
vdpa_dev->ops->set_features(dev->vid);
+ dev->flags &= ~VIRTIO_DEV_FEATURES_FAILED;
return RTE_VHOST_MSG_RESULT_OK;
}
struct virtio_net *dev = *pdev;
struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index];
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
vq->size = msg->payload.state.num;
/* VIRTIO 1.0, 2.4 Virtqueues says:
*
* Queue Size value is always a power of 2. The maximum Queue Size
* value is 32768.
+ *
+ * VIRTIO 1.1 2.7 Virtqueues says:
+ *
+ * Packed virtqueues support up to 2^15 entries each.
*/
- if ((vq->size & (vq->size - 1)) || vq->size > 32768) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ if (!vq_is_packed(dev)) {
+ if (vq->size & (vq->size - 1)) {
+ VHOST_LOG_CONFIG(ERR,
+ "invalid virtqueue size %u\n", vq->size);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ }
+
+ if (vq->size > 32768) {
+ VHOST_LOG_CONFIG(ERR,
"invalid virtqueue size %u\n", vq->size);
return RTE_VHOST_MSG_RESULT_ERR;
}
vq->nr_zmbuf = 0;
vq->last_zmbuf_idx = 0;
vq->zmbuf_size = vq->size;
+ if (vq->zmbufs)
+ rte_free(vq->zmbufs);
vq->zmbufs = rte_zmalloc(NULL, vq->zmbuf_size *
sizeof(struct zcopy_mbuf), 0);
if (vq->zmbufs == NULL) {
- RTE_LOG(WARNING, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(WARNING,
"failed to allocate mem for zero copy; "
"zero copy is force disabled\n");
dev->dequeue_zero_copy = 0;
}
if (vq_is_packed(dev)) {
+ if (vq->shadow_used_packed)
+ rte_free(vq->shadow_used_packed);
vq->shadow_used_packed = rte_malloc(NULL,
vq->size *
sizeof(struct vring_used_elem_packed),
RTE_CACHE_LINE_SIZE);
if (!vq->shadow_used_packed) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"failed to allocate memory for shadow used ring.\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
} else {
+ if (vq->shadow_used_split)
+ rte_free(vq->shadow_used_split);
+
vq->shadow_used_split = rte_malloc(NULL,
vq->size * sizeof(struct vring_used_elem),
RTE_CACHE_LINE_SIZE);
+
if (!vq->shadow_used_split) {
- RTE_LOG(ERR, VHOST_CONFIG,
- "failed to allocate memory for shadow used ring.\n");
+ VHOST_LOG_CONFIG(ERR,
+ "failed to allocate memory for vq internal data.\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
}
+ if (vq->batch_copy_elems)
+ rte_free(vq->batch_copy_elems);
vq->batch_copy_elems = rte_malloc(NULL,
vq->size * sizeof(struct batch_copy_elem),
RTE_CACHE_LINE_SIZE);
if (!vq->batch_copy_elems) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"failed to allocate memory for batching copy.\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
struct batch_copy_elem *new_batch_copy_elems;
int ret;
+ if (dev->flags & VIRTIO_DEV_RUNNING)
+ return dev;
+
old_dev = dev;
vq = old_vq = dev->virtqueue[index];
ret |= get_mempolicy(&oldnode, NULL, 0, old_vq,
MPOL_F_NODE | MPOL_F_ADDR);
if (ret) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Unable to get vq numa information.\n");
return dev;
}
if (oldnode != newnode) {
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"reallocate vq from %d to %d node\n", oldnode, newnode);
vq = rte_malloc_socket(NULL, sizeof(*vq), 0, newnode);
if (!vq)
ret = get_mempolicy(&oldnode, NULL, 0, old_dev,
MPOL_F_NODE | MPOL_F_ADDR);
if (ret) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Unable to get dev numa information.\n");
goto out;
}
if (oldnode != newnode) {
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"reallocate dev from %d to %d node\n",
oldnode, newnode);
dev = rte_malloc_socket(NULL, sizeof(*dev), 0, newnode);
if (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM)) {
uint64_t vva;
- vva = vhost_user_iotlb_cache_find(vq, ra,
+ vhost_user_iotlb_rd_lock(vq);
+ vva = vhost_iova_to_vva(dev, vq, ra,
size, VHOST_ACCESS_RW);
- if (!vva)
- vhost_user_iotlb_miss(dev, ra, VHOST_ACCESS_RW);
+ vhost_user_iotlb_rd_unlock(vq);
return vva;
}
return qva_to_vva(dev, ra, size);
}
+static uint64_t
+log_addr_to_gpa(struct virtio_net *dev, struct vhost_virtqueue *vq)
+{
+ uint64_t log_gpa;
+
+ vhost_user_iotlb_rd_lock(vq);
+ log_gpa = translate_log_addr(dev, vq, vq->ring_addrs.log_guest_addr);
+ vhost_user_iotlb_rd_unlock(vq);
+
+ return log_gpa;
+}
+
static struct virtio_net *
translate_ring_addresses(struct virtio_net *dev, int vq_index)
{
struct vhost_vring_addr *addr = &vq->ring_addrs;
uint64_t len, expected_len;
+ if (addr->flags & (1 << VHOST_VRING_F_LOG)) {
+ vq->log_guest_addr =
+ log_addr_to_gpa(dev, vq);
+ if (vq->log_guest_addr == 0) {
+ VHOST_LOG_CONFIG(DEBUG,
+ "(%d) failed to map log_guest_addr.\n",
+ dev->vid);
+ return dev;
+ }
+ }
+
if (vq_is_packed(dev)) {
len = sizeof(struct vring_packed_desc) * vq->size;
vq->desc_packed = (struct vring_packed_desc *)(uintptr_t)
ring_addr_to_vva(dev, vq, addr->desc_user_addr, &len);
- vq->log_guest_addr = 0;
if (vq->desc_packed == NULL ||
len != sizeof(struct vring_packed_desc) *
vq->size) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to map desc_packed ring.\n",
dev->vid);
return dev;
vq, addr->avail_user_addr, &len);
if (vq->driver_event == NULL ||
len != sizeof(struct vring_packed_desc_event)) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to find driver area address.\n",
dev->vid);
return dev;
vq, addr->used_user_addr, &len);
if (vq->device_event == NULL ||
len != sizeof(struct vring_packed_desc_event)) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to find device area address.\n",
dev->vid);
return dev;
}
+ vq->access_ok = 1;
return dev;
}
vq->desc = (struct vring_desc *)(uintptr_t)ring_addr_to_vva(dev,
vq, addr->desc_user_addr, &len);
if (vq->desc == 0 || len != sizeof(struct vring_desc) * vq->size) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to map desc ring.\n",
dev->vid);
return dev;
vq->avail = (struct vring_avail *)(uintptr_t)ring_addr_to_vva(dev,
vq, addr->avail_user_addr, &len);
if (vq->avail == 0 || len != expected_len) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to map avail ring.\n",
dev->vid);
return dev;
vq->used = (struct vring_used *)(uintptr_t)ring_addr_to_vva(dev,
vq, addr->used_user_addr, &len);
if (vq->used == 0 || len != expected_len) {
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"(%d) failed to map used ring.\n",
dev->vid);
return dev;
}
if (vq->last_used_idx != vq->used->idx) {
- RTE_LOG(WARNING, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(WARNING,
"last_used_idx (%u) and vq->used->idx (%u) mismatches; "
"some packets maybe resent for Tx and dropped for Rx\n",
vq->last_used_idx, vq->used->idx);
vq->last_avail_idx = vq->used->idx;
}
- vq->log_guest_addr = addr->log_guest_addr;
+ vq->access_ok = 1;
- VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address desc: %p\n",
+ VHOST_LOG_CONFIG(DEBUG, "(%d) mapped address desc: %p\n",
dev->vid, vq->desc);
- VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address avail: %p\n",
+ VHOST_LOG_CONFIG(DEBUG, "(%d) mapped address avail: %p\n",
dev->vid, vq->avail);
- VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address used: %p\n",
+ VHOST_LOG_CONFIG(DEBUG, "(%d) mapped address used: %p\n",
dev->vid, vq->used);
- VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) log_guest_addr: %" PRIx64 "\n",
+ VHOST_LOG_CONFIG(DEBUG, "(%d) log_guest_addr: %" PRIx64 "\n",
dev->vid, vq->log_guest_addr);
return dev;
struct virtio_net *dev = *pdev;
struct vhost_virtqueue *vq;
struct vhost_vring_addr *addr = &msg->payload.addr;
+ bool access_ok;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
if (dev->mem == NULL)
return RTE_VHOST_MSG_RESULT_ERR;
/* addr->index refers to the queue index. The txq 1, rxq is 0. */
vq = dev->virtqueue[msg->payload.addr.index];
+ access_ok = vq->access_ok;
+
/*
* Rings addresses should not be interpreted as long as the ring is not
* started and enabled
vring_invalidate(dev, vq);
- if (vq->enabled && (dev->features &
- (1ULL << VHOST_USER_F_PROTOCOL_FEATURES))) {
+ if ((vq->enabled && (dev->features &
+ (1ULL << VHOST_USER_F_PROTOCOL_FEATURES))) ||
+ access_ok) {
dev = translate_ring_addresses(dev, msg->payload.addr.index);
if (!dev)
return RTE_VHOST_MSG_RESULT_ERR;
struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index];
uint64_t val = msg->payload.state.num;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (vq_is_packed(dev)) {
/*
* Bit[0:14]: avail index
if (dev->nr_guest_pages == dev->max_guest_pages) {
dev->max_guest_pages *= 2;
old_pages = dev->guest_pages;
- dev->guest_pages = realloc(dev->guest_pages,
- dev->max_guest_pages * sizeof(*page));
- if (!dev->guest_pages) {
- RTE_LOG(ERR, VHOST_CONFIG, "cannot realloc guest_pages\n");
- free(old_pages);
+ dev->guest_pages = rte_realloc(dev->guest_pages,
+ dev->max_guest_pages * sizeof(*page),
+ RTE_CACHE_LINE_SIZE);
+ if (dev->guest_pages == NULL) {
+ VHOST_LOG_CONFIG(ERR, "cannot realloc guest_pages\n");
+ rte_free(old_pages);
return -1;
}
}
reg_size -= size;
}
+ /* sort guest page array if over binary search threshold */
+ if (dev->nr_guest_pages >= VHOST_BINARY_SEARCH_THRESH) {
+ qsort((void *)dev->guest_pages, dev->nr_guest_pages,
+ sizeof(struct guest_page), guest_page_addrcmp);
+ }
+
return 0;
}
for (i = 0; i < dev->nr_guest_pages; i++) {
page = &dev->guest_pages[i];
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"guest physical page region %u\n"
"\t guest_phys_addr: %" PRIx64 "\n"
"\t host_phys_addr : %" PRIx64 "\n"
int populate;
int fd;
+ if (validate_msg_fds(msg, memory->nregions) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (memory->nregions > VHOST_MEMORY_MAX_NREGIONS) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"too many memory regions (%u)\n", memory->nregions);
return RTE_VHOST_MSG_RESULT_ERR;
}
if (dev->mem && !vhost_memory_changed(memory, dev->mem)) {
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"(%d) memory regions not changed\n", dev->vid);
- for (i = 0; i < memory->nregions; i++)
- close(msg->fds[i]);
+ close_msg_fds(msg);
return RTE_VHOST_MSG_RESULT_OK;
}
if (dev->mem) {
+ if (dev->flags & VIRTIO_DEV_VDPA_CONFIGURED) {
+ struct rte_vdpa_device *vdpa_dev = dev->vdpa_dev;
+
+ if (vdpa_dev && vdpa_dev->ops->dev_close)
+ vdpa_dev->ops->dev_close(dev->vid);
+ dev->flags &= ~VIRTIO_DEV_VDPA_CONFIGURED;
+ }
free_mem_region(dev);
rte_free(dev->mem);
dev->mem = NULL;
vhost_user_iotlb_flush_all(dev->virtqueue[i]);
dev->nr_guest_pages = 0;
- if (!dev->guest_pages) {
+ if (dev->guest_pages == NULL) {
dev->max_guest_pages = 8;
- dev->guest_pages = malloc(dev->max_guest_pages *
- sizeof(struct guest_page));
+ dev->guest_pages = rte_zmalloc(NULL,
+ dev->max_guest_pages *
+ sizeof(struct guest_page),
+ RTE_CACHE_LINE_SIZE);
if (dev->guest_pages == NULL) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"(%d) failed to allocate memory "
"for dev->guest_pages\n",
dev->vid);
dev->mem = rte_zmalloc("vhost-mem-table", sizeof(struct rte_vhost_memory) +
sizeof(struct rte_vhost_mem_region) * memory->nregions, 0);
if (dev->mem == NULL) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"(%d) failed to allocate memory for dev->mem\n",
dev->vid);
return RTE_VHOST_MSG_RESULT_ERR;
/* Check for memory_size + mmap_offset overflow */
if (mmap_offset >= -reg->size) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"mmap_offset (%#"PRIx64") and memory_size "
"(%#"PRIx64") overflow\n",
mmap_offset, reg->size);
*/
alignment = get_blk_size(fd);
if (alignment == (uint64_t)-1) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"couldn't get hugepage size through fstat\n");
goto err_mmap;
}
mmap_size = RTE_ALIGN_CEIL(mmap_size, alignment);
+ if (mmap_size == 0) {
+ /*
+ * It could happen if initial mmap_size + alignment
+ * overflows the sizeof uint64, which could happen if
+ * either mmap_size or alignment value is wrong.
+ *
+ * mmap() kernel implementation would return an error,
+ * but better catch it before and provide useful info
+ * in the logs.
+ */
+ VHOST_LOG_CONFIG(ERR, "mmap size (0x%" PRIx64 ") "
+ "or alignment (0x%" PRIx64 ") is invalid\n",
+ reg->size + mmap_offset, alignment);
+ goto err_mmap;
+ }
- populate = (dev->dequeue_zero_copy) ? MAP_POPULATE : 0;
+ populate = (dev->dequeue_zero_copy || dev->async_copy) ?
+ MAP_POPULATE : 0;
mmap_addr = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
MAP_SHARED | populate, fd, 0);
if (mmap_addr == MAP_FAILED) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"mmap region %u failed.\n", i);
goto err_mmap;
}
reg->host_user_addr = (uint64_t)(uintptr_t)mmap_addr +
mmap_offset;
- if (dev->dequeue_zero_copy)
+ if (dev->dequeue_zero_copy || dev->async_copy)
if (add_guest_pages(dev, reg, alignment) < 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"adding guest pages to region %u failed.\n",
i);
goto err_mmap;
}
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"guest memory region %u, size: 0x%" PRIx64 "\n"
"\t guest physical addr: 0x%" PRIx64 "\n"
"\t guest virtual addr: 0x%" PRIx64 "\n"
*/
VhostUserMsg ack_msg;
if (read_vhost_message(main_fd, &ack_msg) <= 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Failed to read qemu ack on postcopy set-mem-table\n");
goto err_mmap;
}
+
+ if (validate_msg_fds(&ack_msg, 0) != 0)
+ goto err_mmap;
+
if (ack_msg.request.master != VHOST_USER_SET_MEM_TABLE) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Bad qemu ack on postcopy set-mem-table (%d)\n",
ack_msg.request.master);
goto err_mmap;
if (ioctl(dev->postcopy_ufd, UFFDIO_REGISTER,
®_struct)) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Failed to register ufd for region %d: (ufd = %d) %s\n",
i, dev->postcopy_ufd,
strerror(errno));
goto err_mmap;
}
- RTE_LOG(INFO, VHOST_CONFIG,
- "\t userfaultfd registered for range : %llx - %llx\n",
- reg_struct.range.start,
- reg_struct.range.start +
- reg_struct.range.len - 1);
+ VHOST_LOG_CONFIG(INFO,
+ "\t userfaultfd registered for range : "
+ "%" PRIx64 " - %" PRIx64 "\n",
+ (uint64_t)reg_struct.range.start,
+ (uint64_t)reg_struct.range.start +
+ (uint64_t)reg_struct.range.len - 1);
#else
goto err_mmap;
#endif
return false;
if (vq_is_packed(dev))
- rings_ok = !!vq->desc_packed;
+ rings_ok = vq->desc_packed && vq->driver_event &&
+ vq->device_event;
else
rings_ok = vq->desc && vq->avail && vq->used;
return rings_ok &&
vq->kickfd != VIRTIO_UNINITIALIZED_EVENTFD &&
- vq->callfd != VIRTIO_UNINITIALIZED_EVENTFD;
+ vq->callfd != VIRTIO_UNINITIALIZED_EVENTFD &&
+ vq->enabled;
}
+#define VIRTIO_DEV_NUM_VQS_TO_BE_READY 2u
+
static int
virtio_is_ready(struct virtio_net *dev)
{
struct vhost_virtqueue *vq;
uint32_t i;
- if (dev->nr_vring == 0)
+ if (dev->flags & VIRTIO_DEV_READY)
+ return 1;
+
+ if (dev->nr_vring < VIRTIO_DEV_NUM_VQS_TO_BE_READY)
return 0;
- for (i = 0; i < dev->nr_vring; i++) {
+ for (i = 0; i < VIRTIO_DEV_NUM_VQS_TO_BE_READY; i++) {
vq = dev->virtqueue[i];
if (!vq_is_ready(dev, vq))
return 0;
}
- RTE_LOG(INFO, VHOST_CONFIG,
- "virtio is now ready for processing.\n");
+ /* If supported, ensure the frontend is really done with config */
+ if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS))
+ if (!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER_OK))
+ return 0;
+
+ dev->flags |= VIRTIO_DEV_READY;
+
+ if (!(dev->flags & VIRTIO_DEV_RUNNING))
+ VHOST_LOG_CONFIG(INFO,
+ "virtio is now ready for processing.\n");
return 1;
}
+static void *
+inflight_mem_alloc(const char *name, size_t size, int *fd)
+{
+ void *ptr;
+ int mfd = -1;
+ char fname[20] = "/tmp/memfd-XXXXXX";
+
+ *fd = -1;
+#ifdef MEMFD_SUPPORTED
+ mfd = memfd_create(name, MFD_CLOEXEC);
+#else
+ RTE_SET_USED(name);
+#endif
+ if (mfd == -1) {
+ mfd = mkstemp(fname);
+ if (mfd == -1) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to get inflight buffer fd\n");
+ return NULL;
+ }
+
+ unlink(fname);
+ }
+
+ if (ftruncate(mfd, size) == -1) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to alloc inflight buffer\n");
+ close(mfd);
+ return NULL;
+ }
+
+ ptr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, mfd, 0);
+ if (ptr == MAP_FAILED) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to mmap inflight buffer\n");
+ close(mfd);
+ return NULL;
+ }
+
+ *fd = mfd;
+ return ptr;
+}
+
+static uint32_t
+get_pervq_shm_size_split(uint16_t queue_size)
+{
+ return RTE_ALIGN_MUL_CEIL(sizeof(struct rte_vhost_inflight_desc_split) *
+ queue_size + sizeof(uint64_t) +
+ sizeof(uint16_t) * 4, INFLIGHT_ALIGNMENT);
+}
+
+static uint32_t
+get_pervq_shm_size_packed(uint16_t queue_size)
+{
+ return RTE_ALIGN_MUL_CEIL(sizeof(struct rte_vhost_inflight_desc_packed)
+ * queue_size + sizeof(uint64_t) +
+ sizeof(uint16_t) * 6 + sizeof(uint8_t) * 9,
+ INFLIGHT_ALIGNMENT);
+}
+
+static int
+vhost_user_get_inflight_fd(struct virtio_net **pdev,
+ VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ struct rte_vhost_inflight_info_packed *inflight_packed;
+ uint64_t pervq_inflight_size, mmap_size;
+ uint16_t num_queues, queue_size;
+ struct virtio_net *dev = *pdev;
+ int fd, i, j;
+ void *addr;
+
+ if (msg->size != sizeof(msg->payload.inflight)) {
+ VHOST_LOG_CONFIG(ERR,
+ "invalid get_inflight_fd message size is %d\n",
+ msg->size);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ if (dev->inflight_info == NULL) {
+ dev->inflight_info = calloc(1,
+ sizeof(struct inflight_mem_info));
+ if (!dev->inflight_info) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to alloc dev inflight area\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ dev->inflight_info->fd = -1;
+ }
+
+ num_queues = msg->payload.inflight.num_queues;
+ queue_size = msg->payload.inflight.queue_size;
+
+ VHOST_LOG_CONFIG(INFO, "get_inflight_fd num_queues: %u\n",
+ msg->payload.inflight.num_queues);
+ VHOST_LOG_CONFIG(INFO, "get_inflight_fd queue_size: %u\n",
+ msg->payload.inflight.queue_size);
+
+ if (vq_is_packed(dev))
+ pervq_inflight_size = get_pervq_shm_size_packed(queue_size);
+ else
+ pervq_inflight_size = get_pervq_shm_size_split(queue_size);
+
+ mmap_size = num_queues * pervq_inflight_size;
+ addr = inflight_mem_alloc("vhost-inflight", mmap_size, &fd);
+ if (!addr) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to alloc vhost inflight area\n");
+ msg->payload.inflight.mmap_size = 0;
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ memset(addr, 0, mmap_size);
+
+ if (dev->inflight_info->addr) {
+ munmap(dev->inflight_info->addr, dev->inflight_info->size);
+ dev->inflight_info->addr = NULL;
+ }
+
+ if (dev->inflight_info->fd >= 0) {
+ close(dev->inflight_info->fd);
+ dev->inflight_info->fd = -1;
+ }
+
+ dev->inflight_info->addr = addr;
+ dev->inflight_info->size = msg->payload.inflight.mmap_size = mmap_size;
+ dev->inflight_info->fd = msg->fds[0] = fd;
+ msg->payload.inflight.mmap_offset = 0;
+ msg->fd_num = 1;
+
+ if (vq_is_packed(dev)) {
+ for (i = 0; i < num_queues; i++) {
+ inflight_packed =
+ (struct rte_vhost_inflight_info_packed *)addr;
+ inflight_packed->used_wrap_counter = 1;
+ inflight_packed->old_used_wrap_counter = 1;
+ for (j = 0; j < queue_size; j++)
+ inflight_packed->desc[j].next = j + 1;
+ addr = (void *)((char *)addr + pervq_inflight_size);
+ }
+ }
+
+ VHOST_LOG_CONFIG(INFO,
+ "send inflight mmap_size: %"PRIu64"\n",
+ msg->payload.inflight.mmap_size);
+ VHOST_LOG_CONFIG(INFO,
+ "send inflight mmap_offset: %"PRIu64"\n",
+ msg->payload.inflight.mmap_offset);
+ VHOST_LOG_CONFIG(INFO,
+ "send inflight fd: %d\n", msg->fds[0]);
+
+ return RTE_VHOST_MSG_RESULT_REPLY;
+}
+
+static int
+vhost_user_set_inflight_fd(struct virtio_net **pdev, VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ uint64_t mmap_size, mmap_offset;
+ uint16_t num_queues, queue_size;
+ struct virtio_net *dev = *pdev;
+ uint32_t pervq_inflight_size;
+ struct vhost_virtqueue *vq;
+ void *addr;
+ int fd, i;
+
+ fd = msg->fds[0];
+ if (msg->size != sizeof(msg->payload.inflight) || fd < 0) {
+ VHOST_LOG_CONFIG(ERR,
+ "invalid set_inflight_fd message size is %d,fd is %d\n",
+ msg->size, fd);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ mmap_size = msg->payload.inflight.mmap_size;
+ mmap_offset = msg->payload.inflight.mmap_offset;
+ num_queues = msg->payload.inflight.num_queues;
+ queue_size = msg->payload.inflight.queue_size;
+
+ if (vq_is_packed(dev))
+ pervq_inflight_size = get_pervq_shm_size_packed(queue_size);
+ else
+ pervq_inflight_size = get_pervq_shm_size_split(queue_size);
+
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd mmap_size: %"PRIu64"\n", mmap_size);
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd mmap_offset: %"PRIu64"\n", mmap_offset);
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd num_queues: %u\n", num_queues);
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd queue_size: %u\n", queue_size);
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd fd: %d\n", fd);
+ VHOST_LOG_CONFIG(INFO,
+ "set_inflight_fd pervq_inflight_size: %d\n",
+ pervq_inflight_size);
+
+ if (!dev->inflight_info) {
+ dev->inflight_info = calloc(1,
+ sizeof(struct inflight_mem_info));
+ if (dev->inflight_info == NULL) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to alloc dev inflight area\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ dev->inflight_info->fd = -1;
+ }
+
+ if (dev->inflight_info->addr) {
+ munmap(dev->inflight_info->addr, dev->inflight_info->size);
+ dev->inflight_info->addr = NULL;
+ }
+
+ addr = mmap(0, mmap_size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ fd, mmap_offset);
+ if (addr == MAP_FAILED) {
+ VHOST_LOG_CONFIG(ERR, "failed to mmap share memory.\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ if (dev->inflight_info->fd >= 0) {
+ close(dev->inflight_info->fd);
+ dev->inflight_info->fd = -1;
+ }
+
+ dev->inflight_info->fd = fd;
+ dev->inflight_info->addr = addr;
+ dev->inflight_info->size = mmap_size;
+
+ for (i = 0; i < num_queues; i++) {
+ vq = dev->virtqueue[i];
+ if (vq_is_packed(dev)) {
+ vq->inflight_packed = addr;
+ vq->inflight_packed->desc_num = queue_size;
+ } else {
+ vq->inflight_split = addr;
+ vq->inflight_split->desc_num = queue_size;
+ }
+ addr = (void *)((char *)addr + pervq_inflight_size);
+ }
+
+ return RTE_VHOST_MSG_RESULT_OK;
+}
+
static int
vhost_user_set_vring_call(struct virtio_net **pdev, struct VhostUserMsg *msg,
int main_fd __rte_unused)
struct virtio_net *dev = *pdev;
struct vhost_vring_file file;
struct vhost_virtqueue *vq;
+ int expected_fds;
+
+ expected_fds = (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) ? 0 : 1;
+ if (validate_msg_fds(msg, expected_fds) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
file.index = msg->payload.u64 & VHOST_USER_VRING_IDX_MASK;
if (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK)
file.fd = VIRTIO_INVALID_EVENTFD;
else
file.fd = msg->fds[0];
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"vring call idx:%d file:%d\n", file.index, file.fd);
vq = dev->virtqueue[file.index];
+
+ if (vq->ready) {
+ vq->ready = 0;
+ vhost_user_notify_queue_state(dev, file.index, 0);
+ }
+
if (vq->callfd >= 0)
close(vq->callfd);
struct VhostUserMsg *msg,
int main_fd __rte_unused)
{
+ int expected_fds;
+
+ expected_fds = (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) ? 0 : 1;
+ if (validate_msg_fds(msg, expected_fds) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (!(msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK))
close(msg->fds[0]);
- RTE_LOG(INFO, VHOST_CONFIG, "not implemented\n");
+ VHOST_LOG_CONFIG(INFO, "not implemented\n");
+
+ return RTE_VHOST_MSG_RESULT_OK;
+}
+
+static int
+resubmit_desc_compare(const void *a, const void *b)
+{
+ const struct rte_vhost_resubmit_desc *desc0 = a;
+ const struct rte_vhost_resubmit_desc *desc1 = b;
+
+ if (desc1->counter > desc0->counter)
+ return 1;
+
+ return -1;
+}
+
+static int
+vhost_check_queue_inflights_split(struct virtio_net *dev,
+ struct vhost_virtqueue *vq)
+{
+ uint16_t i;
+ uint16_t resubmit_num = 0, last_io, num;
+ struct vring_used *used = vq->used;
+ struct rte_vhost_resubmit_info *resubmit;
+ struct rte_vhost_inflight_info_split *inflight_split;
+
+ if (!(dev->protocol_features &
+ (1ULL << VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD)))
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ /* The frontend may still not support the inflight feature
+ * although we negotiate the protocol feature.
+ */
+ if ((!vq->inflight_split))
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ if (!vq->inflight_split->version) {
+ vq->inflight_split->version = INFLIGHT_VERSION;
+ return RTE_VHOST_MSG_RESULT_OK;
+ }
+
+ if (vq->resubmit_inflight)
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ inflight_split = vq->inflight_split;
+ vq->global_counter = 0;
+ last_io = inflight_split->last_inflight_io;
+
+ if (inflight_split->used_idx != used->idx) {
+ inflight_split->desc[last_io].inflight = 0;
+ rte_smp_mb();
+ inflight_split->used_idx = used->idx;
+ }
+
+ for (i = 0; i < inflight_split->desc_num; i++) {
+ if (inflight_split->desc[i].inflight == 1)
+ resubmit_num++;
+ }
+
+ vq->last_avail_idx += resubmit_num;
+
+ if (resubmit_num) {
+ resubmit = calloc(1, sizeof(struct rte_vhost_resubmit_info));
+ if (!resubmit) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to allocate memory for resubmit info.\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ resubmit->resubmit_list = calloc(resubmit_num,
+ sizeof(struct rte_vhost_resubmit_desc));
+ if (!resubmit->resubmit_list) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to allocate memory for inflight desc.\n");
+ free(resubmit);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ num = 0;
+ for (i = 0; i < vq->inflight_split->desc_num; i++) {
+ if (vq->inflight_split->desc[i].inflight == 1) {
+ resubmit->resubmit_list[num].index = i;
+ resubmit->resubmit_list[num].counter =
+ inflight_split->desc[i].counter;
+ num++;
+ }
+ }
+ resubmit->resubmit_num = num;
+
+ if (resubmit->resubmit_num > 1)
+ qsort(resubmit->resubmit_list, resubmit->resubmit_num,
+ sizeof(struct rte_vhost_resubmit_desc),
+ resubmit_desc_compare);
+
+ vq->global_counter = resubmit->resubmit_list[0].counter + 1;
+ vq->resubmit_inflight = resubmit;
+ }
+
+ return RTE_VHOST_MSG_RESULT_OK;
+}
+
+static int
+vhost_check_queue_inflights_packed(struct virtio_net *dev,
+ struct vhost_virtqueue *vq)
+{
+ uint16_t i;
+ uint16_t resubmit_num = 0, old_used_idx, num;
+ struct rte_vhost_resubmit_info *resubmit;
+ struct rte_vhost_inflight_info_packed *inflight_packed;
+
+ if (!(dev->protocol_features &
+ (1ULL << VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD)))
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ /* The frontend may still not support the inflight feature
+ * although we negotiate the protocol feature.
+ */
+ if ((!vq->inflight_packed))
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ if (!vq->inflight_packed->version) {
+ vq->inflight_packed->version = INFLIGHT_VERSION;
+ return RTE_VHOST_MSG_RESULT_OK;
+ }
+
+ if (vq->resubmit_inflight)
+ return RTE_VHOST_MSG_RESULT_OK;
+
+ inflight_packed = vq->inflight_packed;
+ vq->global_counter = 0;
+ old_used_idx = inflight_packed->old_used_idx;
+
+ if (inflight_packed->used_idx != old_used_idx) {
+ if (inflight_packed->desc[old_used_idx].inflight == 0) {
+ inflight_packed->old_used_idx =
+ inflight_packed->used_idx;
+ inflight_packed->old_used_wrap_counter =
+ inflight_packed->used_wrap_counter;
+ inflight_packed->old_free_head =
+ inflight_packed->free_head;
+ } else {
+ inflight_packed->used_idx =
+ inflight_packed->old_used_idx;
+ inflight_packed->used_wrap_counter =
+ inflight_packed->old_used_wrap_counter;
+ inflight_packed->free_head =
+ inflight_packed->old_free_head;
+ }
+ }
+
+ for (i = 0; i < inflight_packed->desc_num; i++) {
+ if (inflight_packed->desc[i].inflight == 1)
+ resubmit_num++;
+ }
+
+ if (resubmit_num) {
+ resubmit = calloc(1, sizeof(struct rte_vhost_resubmit_info));
+ if (resubmit == NULL) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to allocate memory for resubmit info.\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ resubmit->resubmit_list = calloc(resubmit_num,
+ sizeof(struct rte_vhost_resubmit_desc));
+ if (resubmit->resubmit_list == NULL) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to allocate memory for resubmit desc.\n");
+ free(resubmit);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ num = 0;
+ for (i = 0; i < inflight_packed->desc_num; i++) {
+ if (vq->inflight_packed->desc[i].inflight == 1) {
+ resubmit->resubmit_list[num].index = i;
+ resubmit->resubmit_list[num].counter =
+ inflight_packed->desc[i].counter;
+ num++;
+ }
+ }
+ resubmit->resubmit_num = num;
+
+ if (resubmit->resubmit_num > 1)
+ qsort(resubmit->resubmit_list, resubmit->resubmit_num,
+ sizeof(struct rte_vhost_resubmit_desc),
+ resubmit_desc_compare);
+
+ vq->global_counter = resubmit->resubmit_list[0].counter + 1;
+ vq->resubmit_inflight = resubmit;
+ }
return RTE_VHOST_MSG_RESULT_OK;
}
struct virtio_net *dev = *pdev;
struct vhost_vring_file file;
struct vhost_virtqueue *vq;
+ int expected_fds;
+
+ expected_fds = (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK) ? 0 : 1;
+ if (validate_msg_fds(msg, expected_fds) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
file.index = msg->payload.u64 & VHOST_USER_VRING_IDX_MASK;
if (msg->payload.u64 & VHOST_USER_VRING_NOFD_MASK)
file.fd = VIRTIO_INVALID_EVENTFD;
else
file.fd = msg->fds[0];
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"vring kick idx:%d file:%d\n", file.index, file.fd);
/* Interpret ring addresses only when ring is started. */
dev->vid, file.index, 1);
}
+ if (vq->ready) {
+ vq->ready = 0;
+ vhost_user_notify_queue_state(dev, file.index, 0);
+ }
+
if (vq->kickfd >= 0)
close(vq->kickfd);
vq->kickfd = file.fd;
+ if (vq_is_packed(dev)) {
+ if (vhost_check_queue_inflights_packed(dev, vq)) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to inflights for vq: %d\n", file.index);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ } else {
+ if (vhost_check_queue_inflights_split(dev, vq)) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to inflights for vq: %d\n", file.index);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ }
+
return RTE_VHOST_MSG_RESULT_OK;
}
drain_zmbuf_list(vq);
rte_free(vq->zmbufs);
+ vq->zmbufs = NULL;
}
/*
struct vhost_virtqueue *vq = dev->virtqueue[msg->payload.state.index];
uint64_t val;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
/* We have to stop the queue (virtio) if it is running. */
vhost_destroy_device_notify(dev);
msg->payload.state.num = vq->last_avail_idx;
}
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"vring base idx:%d file:%d\n", msg->payload.state.index,
msg->payload.state.num);
/*
} else {
rte_free(vq->shadow_used_split);
vq->shadow_used_split = NULL;
+ if (vq->async_pkts_pending)
+ rte_free(vq->async_pkts_pending);
+ if (vq->async_pending_info)
+ rte_free(vq->async_pending_info);
+ vq->async_pkts_pending = NULL;
+ vq->async_pending_info = NULL;
}
rte_free(vq->batch_copy_elems);
msg->size = sizeof(msg->payload.state);
msg->fd_num = 0;
+ vring_invalidate(dev, vq);
+
return RTE_VHOST_MSG_RESULT_REPLY;
}
struct virtio_net *dev = *pdev;
int enable = (int)msg->payload.state.num;
int index = (int)msg->payload.state.index;
- struct rte_vdpa_device *vdpa_dev;
- int did = -1;
- RTE_LOG(INFO, VHOST_CONFIG,
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ VHOST_LOG_CONFIG(INFO,
"set queue enable: %d to qp idx: %d\n",
enable, index);
- did = dev->vdpa_dev_id;
- vdpa_dev = rte_vdpa_get_device(did);
- if (vdpa_dev && vdpa_dev->ops->set_vring_state)
- vdpa_dev->ops->set_vring_state(dev->vid, index, enable);
-
- if (dev->notify_ops->vring_state_changed)
- dev->notify_ops->vring_state_changed(dev->vid,
- index, enable);
+ if (!enable && dev->virtqueue[index]->async_registered) {
+ if (dev->virtqueue[index]->async_pkts_inflight_n) {
+ VHOST_LOG_CONFIG(ERR, "failed to disable vring. "
+ "async inflight packets must be completed first\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ }
/* On disable, rings have to be stopped being processed. */
if (!enable && dev->dequeue_zero_copy)
struct virtio_net *dev = *pdev;
uint64_t features, protocol_features;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
rte_vhost_driver_get_features(dev->ifname, &features);
rte_vhost_driver_get_protocol_features(dev->ifname, &protocol_features);
- /*
- * REPLY_ACK protocol feature is only mandatory for now
- * for IOMMU feature. If IOMMU is explicitly disabled by the
- * application, disable also REPLY_ACK feature for older buggy
- * Qemu versions (from v2.7.0 to v2.9.0).
- */
- if (!(features & (1ULL << VIRTIO_F_IOMMU_PLATFORM)))
- protocol_features &= ~(1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK);
-
msg->payload.u64 = protocol_features;
msg->size = sizeof(msg->payload.u64);
msg->fd_num = 0;
uint64_t protocol_features = msg->payload.u64;
uint64_t slave_protocol_features = 0;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
rte_vhost_driver_get_protocol_features(dev->ifname,
&slave_protocol_features);
if (protocol_features & ~slave_protocol_features) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"(%d) received invalid protocol features.\n",
dev->vid);
return RTE_VHOST_MSG_RESULT_ERR;
}
dev->protocol_features = protocol_features;
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"negotiated Vhost-user protocol features: 0x%" PRIx64 "\n",
dev->protocol_features);
uint64_t size, off;
void *addr;
+ if (validate_msg_fds(msg, 1) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (fd < 0) {
- RTE_LOG(ERR, VHOST_CONFIG, "invalid log fd: %d\n", fd);
+ VHOST_LOG_CONFIG(ERR, "invalid log fd: %d\n", fd);
return RTE_VHOST_MSG_RESULT_ERR;
}
if (msg->size != sizeof(VhostUserLog)) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"invalid log base msg size: %"PRId32" != %d\n",
msg->size, (int)sizeof(VhostUserLog));
return RTE_VHOST_MSG_RESULT_ERR;
size = msg->payload.log.mmap_size;
off = msg->payload.log.mmap_offset;
- /* Don't allow mmap_offset to point outside the mmap region */
- if (off > size) {
- RTE_LOG(ERR, VHOST_CONFIG,
- "log offset %#"PRIx64" exceeds log size %#"PRIx64"\n",
+ /* Check for mmap size and offset overflow. */
+ if (off >= -size) {
+ VHOST_LOG_CONFIG(ERR,
+ "log offset %#"PRIx64" and log size %#"PRIx64" overflow\n",
off, size);
return RTE_VHOST_MSG_RESULT_ERR;
}
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"log mmap size: %"PRId64", offset: %"PRId64"\n",
size, off);
addr = mmap(0, size + off, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
close(fd);
if (addr == MAP_FAILED) {
- RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n");
+ VHOST_LOG_CONFIG(ERR, "mmap log base failed!\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
struct VhostUserMsg *msg,
int main_fd __rte_unused)
{
+ if (validate_msg_fds(msg, 1) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
close(msg->fds[0]);
- RTE_LOG(INFO, VHOST_CONFIG, "not implemented.\n");
+ VHOST_LOG_CONFIG(INFO, "not implemented.\n");
return RTE_VHOST_MSG_RESULT_OK;
}
struct virtio_net *dev = *pdev;
uint8_t *mac = (uint8_t *)&msg->payload.u64;
struct rte_vdpa_device *vdpa_dev;
- int did = -1;
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ VHOST_LOG_CONFIG(DEBUG,
":: mac: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
memcpy(dev->mac.addr_bytes, mac, 6);
* Set the flag to inject a RARP broadcast packet at
* rte_vhost_dequeue_burst().
*
- * rte_smp_wmb() is for making sure the mac is copied
- * before the flag is set.
+ * __ATOMIC_RELEASE ordering is for making sure the mac is
+ * copied before the flag is set.
*/
- rte_smp_wmb();
- rte_atomic16_set(&dev->broadcast_rarp, 1);
- did = dev->vdpa_dev_id;
- vdpa_dev = rte_vdpa_get_device(did);
+ __atomic_store_n(&dev->broadcast_rarp, 1, __ATOMIC_RELEASE);
+ vdpa_dev = dev->vdpa_dev;
if (vdpa_dev && vdpa_dev->ops->migration_done)
vdpa_dev->ops->migration_done(dev->vid);
int main_fd __rte_unused)
{
struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (msg->payload.u64 < VIRTIO_MIN_MTU ||
msg->payload.u64 > VIRTIO_MAX_MTU) {
- RTE_LOG(ERR, VHOST_CONFIG, "Invalid MTU size (%"PRIu64")\n",
+ VHOST_LOG_CONFIG(ERR, "Invalid MTU size (%"PRIu64")\n",
msg->payload.u64);
return RTE_VHOST_MSG_RESULT_ERR;
struct virtio_net *dev = *pdev;
int fd = msg->fds[0];
+ if (validate_msg_fds(msg, 1) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (fd < 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Invalid file descriptor for slave channel (%d)\n",
fd);
return RTE_VHOST_MSG_RESULT_ERR;
}
static int
-is_vring_iotlb_update(struct vhost_virtqueue *vq, struct vhost_iotlb_msg *imsg)
+is_vring_iotlb_split(struct vhost_virtqueue *vq, struct vhost_iotlb_msg *imsg)
{
struct vhost_vring_addr *ra;
- uint64_t start, end;
+ uint64_t start, end, len;
start = imsg->iova;
end = start + imsg->size;
ra = &vq->ring_addrs;
- if (ra->desc_user_addr >= start && ra->desc_user_addr < end)
+ len = sizeof(struct vring_desc) * vq->size;
+ if (ra->desc_user_addr < end && (ra->desc_user_addr + len) > start)
return 1;
- if (ra->avail_user_addr >= start && ra->avail_user_addr < end)
+
+ len = sizeof(struct vring_avail) + sizeof(uint16_t) * vq->size;
+ if (ra->avail_user_addr < end && (ra->avail_user_addr + len) > start)
return 1;
- if (ra->used_user_addr >= start && ra->used_user_addr < end)
+
+ len = sizeof(struct vring_used) +
+ sizeof(struct vring_used_elem) * vq->size;
+ if (ra->used_user_addr < end && (ra->used_user_addr + len) > start)
return 1;
+ if (ra->flags & (1 << VHOST_VRING_F_LOG)) {
+ len = sizeof(uint64_t);
+ if (ra->log_guest_addr < end &&
+ (ra->log_guest_addr + len) > start)
+ return 1;
+ }
+
return 0;
}
static int
-is_vring_iotlb_invalidate(struct vhost_virtqueue *vq,
- struct vhost_iotlb_msg *imsg)
+is_vring_iotlb_packed(struct vhost_virtqueue *vq, struct vhost_iotlb_msg *imsg)
{
- uint64_t istart, iend, vstart, vend;
+ struct vhost_vring_addr *ra;
+ uint64_t start, end, len;
- istart = imsg->iova;
- iend = istart + imsg->size - 1;
+ start = imsg->iova;
+ end = start + imsg->size;
- vstart = (uintptr_t)vq->desc;
- vend = vstart + sizeof(struct vring_desc) * vq->size - 1;
- if (vstart <= iend && istart <= vend)
+ ra = &vq->ring_addrs;
+ len = sizeof(struct vring_packed_desc) * vq->size;
+ if (ra->desc_user_addr < end && (ra->desc_user_addr + len) > start)
return 1;
- vstart = (uintptr_t)vq->avail;
- vend = vstart + sizeof(struct vring_avail);
- vend += sizeof(uint16_t) * vq->size - 1;
- if (vstart <= iend && istart <= vend)
+ len = sizeof(struct vring_packed_desc_event);
+ if (ra->avail_user_addr < end && (ra->avail_user_addr + len) > start)
return 1;
- vstart = (uintptr_t)vq->used;
- vend = vstart + sizeof(struct vring_used);
- vend += sizeof(struct vring_used_elem) * vq->size - 1;
- if (vstart <= iend && istart <= vend)
+ len = sizeof(struct vring_packed_desc_event);
+ if (ra->used_user_addr < end && (ra->used_user_addr + len) > start)
return 1;
+ if (ra->flags & (1 << VHOST_VRING_F_LOG)) {
+ len = sizeof(uint64_t);
+ if (ra->log_guest_addr < end &&
+ (ra->log_guest_addr + len) > start)
+ return 1;
+ }
+
return 0;
}
+static int is_vring_iotlb(struct virtio_net *dev,
+ struct vhost_virtqueue *vq,
+ struct vhost_iotlb_msg *imsg)
+{
+ if (vq_is_packed(dev))
+ return is_vring_iotlb_packed(vq, imsg);
+ else
+ return is_vring_iotlb_split(vq, imsg);
+}
+
static int
vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg,
int main_fd __rte_unused)
uint16_t i;
uint64_t vva, len;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
switch (imsg->type) {
case VHOST_IOTLB_UPDATE:
len = imsg->size;
vhost_user_iotlb_cache_insert(vq, imsg->iova, vva,
len, imsg->perm);
- if (is_vring_iotlb_update(vq, imsg))
+ if (is_vring_iotlb(dev, vq, imsg))
*pdev = dev = translate_ring_addresses(dev, i);
}
break;
vhost_user_iotlb_cache_remove(vq, imsg->iova,
imsg->size);
- if (is_vring_iotlb_invalidate(vq, imsg))
+ if (is_vring_iotlb(dev, vq, imsg))
vring_invalidate(dev, vq);
}
break;
default:
- RTE_LOG(ERR, VHOST_CONFIG, "Invalid IOTLB message type (%d)\n",
+ VHOST_LOG_CONFIG(ERR, "Invalid IOTLB message type (%d)\n",
imsg->type);
return RTE_VHOST_MSG_RESULT_ERR;
}
#ifdef RTE_LIBRTE_VHOST_POSTCOPY
struct uffdio_api api_struct;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
dev->postcopy_ufd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
if (dev->postcopy_ufd == -1) {
- RTE_LOG(ERR, VHOST_CONFIG, "Userfaultfd not available: %s\n",
+ VHOST_LOG_CONFIG(ERR, "Userfaultfd not available: %s\n",
strerror(errno));
return RTE_VHOST_MSG_RESULT_ERR;
}
api_struct.api = UFFD_API;
api_struct.features = 0;
if (ioctl(dev->postcopy_ufd, UFFDIO_API, &api_struct)) {
- RTE_LOG(ERR, VHOST_CONFIG, "UFFDIO_API ioctl failure: %s\n",
+ VHOST_LOG_CONFIG(ERR, "UFFDIO_API ioctl failure: %s\n",
strerror(errno));
close(dev->postcopy_ufd);
dev->postcopy_ufd = -1;
{
struct virtio_net *dev = *pdev;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
if (dev->mem && dev->mem->nregions) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Regions already registered at postcopy-listen\n");
return RTE_VHOST_MSG_RESULT_ERR;
}
{
struct virtio_net *dev = *pdev;
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
dev->postcopy_listening = 0;
if (dev->postcopy_ufd >= 0) {
close(dev->postcopy_ufd);
return RTE_VHOST_MSG_RESULT_REPLY;
}
+static int
+vhost_user_get_status(struct virtio_net **pdev, struct VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ msg->payload.u64 = dev->status;
+ msg->size = sizeof(msg->payload.u64);
+ msg->fd_num = 0;
+
+ return RTE_VHOST_MSG_RESULT_REPLY;
+}
+
+static int
+vhost_user_set_status(struct virtio_net **pdev, struct VhostUserMsg *msg,
+ int main_fd __rte_unused)
+{
+ struct virtio_net *dev = *pdev;
+
+ if (validate_msg_fds(msg, 0) != 0)
+ return RTE_VHOST_MSG_RESULT_ERR;
+
+ /* As per Virtio specification, the device status is 8bits long */
+ if (msg->payload.u64 > UINT8_MAX) {
+ VHOST_LOG_CONFIG(ERR, "Invalid VHOST_USER_SET_STATUS payload 0x%" PRIx64 "\n",
+ msg->payload.u64);
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+
+ dev->status = msg->payload.u64;
+
+ if ((dev->status & VIRTIO_DEVICE_STATUS_FEATURES_OK) &&
+ (dev->flags & VIRTIO_DEV_FEATURES_FAILED)) {
+ VHOST_LOG_CONFIG(ERR, "FEATURES_OK bit is set but feature negotiation failed\n");
+ /*
+ * Clear the bit to let the driver know about the feature
+ * negotiation failure
+ */
+ dev->status &= ~VIRTIO_DEVICE_STATUS_FEATURES_OK;
+ }
+
+ VHOST_LOG_CONFIG(INFO, "New device status(0x%08x):\n"
+ "\t-ACKNOWLEDGE: %u\n"
+ "\t-DRIVER: %u\n"
+ "\t-FEATURES_OK: %u\n"
+ "\t-DRIVER_OK: %u\n"
+ "\t-DEVICE_NEED_RESET: %u\n"
+ "\t-FAILED: %u\n",
+ dev->status,
+ !!(dev->status & VIRTIO_DEVICE_STATUS_ACK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_FEATURES_OK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DRIVER_OK),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_DEV_NEED_RESET),
+ !!(dev->status & VIRTIO_DEVICE_STATUS_FAILED));
+
+ return RTE_VHOST_MSG_RESULT_OK;
+}
+
typedef int (*vhost_message_handler_t)(struct virtio_net **pdev,
struct VhostUserMsg *msg,
int main_fd);
[VHOST_USER_POSTCOPY_ADVISE] = vhost_user_set_postcopy_advise,
[VHOST_USER_POSTCOPY_LISTEN] = vhost_user_set_postcopy_listen,
[VHOST_USER_POSTCOPY_END] = vhost_user_postcopy_end,
+ [VHOST_USER_GET_INFLIGHT_FD] = vhost_user_get_inflight_fd,
+ [VHOST_USER_SET_INFLIGHT_FD] = vhost_user_set_inflight_fd,
+ [VHOST_USER_SET_STATUS] = vhost_user_set_status,
+ [VHOST_USER_GET_STATUS] = vhost_user_get_status,
};
-
/* return bytes# of read on success or negative val on failure. */
static int
read_vhost_message(int sockfd, struct VhostUserMsg *msg)
ret = read_fd_message(sockfd, (char *)msg, VHOST_USER_HDR_SIZE,
msg->fds, VHOST_MEMORY_MAX_NREGIONS, &msg->fd_num);
- if (ret <= 0)
+ if (ret <= 0) {
return ret;
+ } else if (ret != VHOST_USER_HDR_SIZE) {
+ VHOST_LOG_CONFIG(ERR, "Unexpected header size read\n");
+ close_msg_fds(msg);
+ return -1;
+ }
if (msg->size) {
if (msg->size > sizeof(msg->payload)) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"invalid msg size: %d\n", msg->size);
return -1;
}
if (ret <= 0)
return ret;
if (ret != (int)msg->size) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"read control message failed\n");
return -1;
}
vhost_user_check_and_alloc_queue_pair(struct virtio_net *dev,
struct VhostUserMsg *msg)
{
- uint16_t vring_idx;
+ uint32_t vring_idx;
switch (msg->request.master) {
case VHOST_USER_SET_VRING_KICK:
}
if (vring_idx >= VHOST_MAX_VRING) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"invalid vring index: %u\n", vring_idx);
return -1;
}
struct virtio_net *dev;
struct VhostUserMsg msg;
struct rte_vdpa_device *vdpa_dev;
- int did = -1;
int ret;
int unlock_required = 0;
bool handled;
int request;
+ uint32_t i;
dev = get_device(vid);
if (dev == NULL)
if (!dev->notify_ops) {
dev->notify_ops = vhost_driver_callback_get(dev->ifname);
if (!dev->notify_ops) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"failed to get callback ops for driver %s\n",
dev->ifname);
return -1;
ret = read_vhost_message(fd, &msg);
if (ret <= 0) {
if (ret < 0)
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"vhost read message failed\n");
else
- RTE_LOG(INFO, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(INFO,
"vhost peer closed\n");
return -1;
if (request > VHOST_USER_NONE && request < VHOST_USER_MAX &&
vhost_message_str[request]) {
if (request != VHOST_USER_IOTLB_MSG)
- RTE_LOG(INFO, VHOST_CONFIG, "read message %s\n",
+ VHOST_LOG_CONFIG(INFO, "read message %s\n",
vhost_message_str[request]);
else
- RTE_LOG(DEBUG, VHOST_CONFIG, "read message %s\n",
+ VHOST_LOG_CONFIG(DEBUG, "read message %s\n",
vhost_message_str[request]);
} else {
- RTE_LOG(DEBUG, VHOST_CONFIG, "External request %d\n", request);
+ VHOST_LOG_CONFIG(DEBUG, "External request %d\n", request);
}
ret = vhost_user_check_and_alloc_queue_pair(dev, &msg);
if (ret < 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"failed to alloc queue\n");
return -1;
}
case VHOST_USER_SEND_RARP:
case VHOST_USER_NET_SET_MTU:
case VHOST_USER_SET_SLAVE_REQ_FD:
- vhost_user_lock_all_queue_pairs(dev);
- unlock_required = 1;
+ if (!(dev->flags & VIRTIO_DEV_VDPA_CONFIGURED)) {
+ vhost_user_lock_all_queue_pairs(dev);
+ unlock_required = 1;
+ }
break;
default:
break;
switch (ret) {
case RTE_VHOST_MSG_RESULT_ERR:
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Processing %s failed.\n",
vhost_message_str[request]);
handled = true;
break;
case RTE_VHOST_MSG_RESULT_OK:
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"Processing %s succeeded.\n",
vhost_message_str[request]);
handled = true;
break;
case RTE_VHOST_MSG_RESULT_REPLY:
- RTE_LOG(DEBUG, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(DEBUG,
"Processing %s succeeded and needs reply.\n",
vhost_message_str[request]);
send_vhost_reply(fd, &msg);
/* If message was not handled at this stage, treat it as an error */
if (!handled) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"vhost message (req: %d) was not handled.\n", request);
+ close_msg_fds(&msg);
ret = RTE_VHOST_MSG_RESULT_ERR;
}
msg.fd_num = 0;
send_vhost_reply(fd, &msg);
} else if (ret == RTE_VHOST_MSG_RESULT_ERR) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"vhost message handling failed.\n");
return -1;
}
- if (!(dev->flags & VIRTIO_DEV_RUNNING) && virtio_is_ready(dev)) {
- dev->flags |= VIRTIO_DEV_READY;
-
- if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
- if (dev->dequeue_zero_copy) {
- RTE_LOG(INFO, VHOST_CONFIG,
- "dequeue zero copy is enabled\n");
- }
+ for (i = 0; i < dev->nr_vring; i++) {
+ struct vhost_virtqueue *vq = dev->virtqueue[i];
+ bool cur_ready = vq_is_ready(dev, vq);
- if (dev->notify_ops->new_device(dev->vid) == 0)
- dev->flags |= VIRTIO_DEV_RUNNING;
+ if (cur_ready != (vq && vq->ready)) {
+ vq->ready = cur_ready;
+ vhost_user_notify_queue_state(dev, i, cur_ready);
}
}
- did = dev->vdpa_dev_id;
- vdpa_dev = rte_vdpa_get_device(did);
- if (vdpa_dev && virtio_is_ready(dev) &&
- !(dev->flags & VIRTIO_DEV_VDPA_CONFIGURED) &&
- msg.request.master == VHOST_USER_SET_VRING_CALL) {
- if (vdpa_dev->ops->dev_conf)
- vdpa_dev->ops->dev_conf(dev->vid);
- dev->flags |= VIRTIO_DEV_VDPA_CONFIGURED;
+
+ if (!virtio_is_ready(dev))
+ goto out;
+
+ /*
+ * Virtio is now ready. If not done already, it is time
+ * to notify the application it can process the rings and
+ * configure the vDPA device if present.
+ */
+
+ if (!(dev->flags & VIRTIO_DEV_RUNNING)) {
+ if (dev->notify_ops->new_device(dev->vid) == 0)
+ dev->flags |= VIRTIO_DEV_RUNNING;
+ }
+
+ vdpa_dev = dev->vdpa_dev;
+ if (!vdpa_dev)
+ goto out;
+
+ if (!(dev->flags & VIRTIO_DEV_VDPA_CONFIGURED)) {
+ if (vdpa_dev->ops->dev_conf(dev->vid))
+ VHOST_LOG_CONFIG(ERR,
+ "Failed to configure vDPA device\n");
+ else
+ dev->flags |= VIRTIO_DEV_VDPA_CONFIGURED;
}
+out:
return 0;
}
if ((msg->flags & VHOST_USER_NEED_REPLY) == 0)
return 0;
- if (read_vhost_message(dev->slave_req_fd, &msg_reply) < 0) {
+ ret = read_vhost_message(dev->slave_req_fd, &msg_reply);
+ if (ret <= 0) {
+ if (ret < 0)
+ VHOST_LOG_CONFIG(ERR,
+ "vhost read slave message reply failed\n");
+ else
+ VHOST_LOG_CONFIG(INFO,
+ "vhost peer closed\n");
ret = -1;
goto out;
}
+ ret = 0;
if (msg_reply.request.slave != msg->request.slave) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Received unexpected msg type (%u), expected %u\n",
msg_reply.request.slave, msg->request.slave);
ret = -1;
ret = send_vhost_message(dev->slave_req_fd, &msg);
if (ret < 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Failed to send IOTLB miss message (%d)\n",
ret);
return ret;
return 0;
}
+static int
+vhost_user_slave_config_change(struct virtio_net *dev, bool need_reply)
+{
+ int ret;
+ struct VhostUserMsg msg = {
+ .request.slave = VHOST_USER_SLAVE_CONFIG_CHANGE_MSG,
+ .flags = VHOST_USER_VERSION,
+ .size = 0,
+ };
+
+ if (need_reply)
+ msg.flags |= VHOST_USER_NEED_REPLY;
+
+ ret = send_vhost_slave_message(dev, &msg);
+ if (ret < 0) {
+ VHOST_LOG_CONFIG(ERR,
+ "Failed to send config change (%d)\n",
+ ret);
+ return ret;
+ }
+
+ return process_slave_message_reply(dev, &msg);
+}
+
+int
+rte_vhost_slave_config_change(int vid, bool need_reply)
+{
+ struct virtio_net *dev;
+
+ dev = get_device(vid);
+ if (!dev)
+ return -ENODEV;
+
+ return vhost_user_slave_config_change(dev, need_reply);
+}
+
static int vhost_user_slave_set_vring_host_notifier(struct virtio_net *dev,
int index, int fd,
uint64_t offset,
ret = send_vhost_slave_message(dev, &msg);
if (ret < 0) {
- RTE_LOG(ERR, VHOST_CONFIG,
+ VHOST_LOG_CONFIG(ERR,
"Failed to set host notifier (%d)\n", ret);
return ret;
}
return process_slave_message_reply(dev, &msg);
}
-int rte_vhost_host_notifier_ctrl(int vid, bool enable)
+int rte_vhost_host_notifier_ctrl(int vid, uint16_t qid, bool enable)
{
struct virtio_net *dev;
struct rte_vdpa_device *vdpa_dev;
- int vfio_device_fd, did, ret = 0;
+ int vfio_device_fd, ret = 0;
uint64_t offset, size;
- unsigned int i;
+ unsigned int i, q_start, q_last;
dev = get_device(vid);
if (!dev)
return -ENODEV;
- did = dev->vdpa_dev_id;
- if (did < 0)
- return -EINVAL;
+ vdpa_dev = dev->vdpa_dev;
+ if (vdpa_dev == NULL)
+ return -ENODEV;
if (!(dev->features & (1ULL << VIRTIO_F_VERSION_1)) ||
!(dev->features & (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)) ||
(1ULL << VHOST_USER_PROTOCOL_F_HOST_NOTIFIER)))
return -ENOTSUP;
- vdpa_dev = rte_vdpa_get_device(did);
- if (!vdpa_dev)
- return -ENODEV;
+ if (qid == RTE_VHOST_QUEUE_ALL) {
+ q_start = 0;
+ q_last = dev->nr_vring - 1;
+ } else {
+ if (qid >= dev->nr_vring)
+ return -EINVAL;
+ q_start = qid;
+ q_last = qid;
+ }
RTE_FUNC_PTR_OR_ERR_RET(vdpa_dev->ops->get_vfio_device_fd, -ENOTSUP);
RTE_FUNC_PTR_OR_ERR_RET(vdpa_dev->ops->get_notify_area, -ENOTSUP);
return -ENOTSUP;
if (enable) {
- for (i = 0; i < dev->nr_vring; i++) {
+ for (i = q_start; i <= q_last; i++) {
if (vdpa_dev->ops->get_notify_area(vid, i, &offset,
&size) < 0) {
ret = -ENOTSUP;
}
} else {
disable:
- for (i = 0; i < dev->nr_vring; i++) {
+ for (i = q_start; i <= q_last; i++) {
vhost_user_slave_set_vring_host_notifier(dev, i, -1,
0, 0);
}
git.droids-corp.org / dpdk.git / blobdiff