}
}
-static void
+static_always_inline void
vhost_user_tx_thread_placement (vhost_user_intf_t * vui)
{
//Let's try to assign one queue to each thread
- u32 qid = 0;
+ u32 qid;
u32 thread_index = 0;
+
vui->use_tx_spinlock = 0;
while (1)
{
* @brief Unassign existing interface/queue to thread mappings and re-assign
* new interface/queue to thread mappings
*/
-static void
-vhost_user_rx_thread_placement ()
+static_always_inline void
+vhost_user_rx_thread_placement (vhost_user_intf_t * vui, u32 qid)
{
- vhost_user_main_t *vum = &vhost_user_main;
- vhost_user_intf_t *vui;
- vhost_user_vring_t *txvq;
+ vhost_user_vring_t *txvq = &vui->vrings[qid];
vnet_main_t *vnm = vnet_get_main ();
- u32 qid;
int rv;
- u16 *queue;
-
- // Scrap all existing mappings for all interfaces/queues
- /* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
- vec_foreach (queue, vui->rx_queues)
- {
- rv = vnet_hw_interface_unassign_rx_thread (vnm, vui->hw_if_index,
- *queue);
- if (rv)
- vu_log_warn (vui, "unable to unassign interface %d, "
- "queue %d: rc=%d", vui->hw_if_index, *queue, rv);
- }
- vec_reset_length (vui->rx_queues);
- });
- /* *INDENT-ON* */
-
- // Create the rx_queues for all interfaces
- /* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
- for (qid = 0; qid < VHOST_VRING_MAX_N / 2; qid++)
- {
- txvq = &vui->vrings[VHOST_VRING_IDX_TX (qid)];
- if (txvq->started)
- {
- if (txvq->mode == VNET_HW_INTERFACE_RX_MODE_UNKNOWN)
- /* Set polling as the default */
- txvq->mode = VNET_HW_INTERFACE_RX_MODE_POLLING;
- vec_add1 (vui->rx_queues, qid);
- }
- }
- });
- /* *INDENT-ON* */
-
- // Assign new mappings for all interfaces/queues
- /* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
- vnet_hw_interface_set_input_node (vnm, vui->hw_if_index,
- vhost_user_input_node.index);
- vec_foreach (queue, vui->rx_queues)
- {
- vnet_hw_interface_assign_rx_thread (vnm, vui->hw_if_index, *queue,
- ~0);
- txvq = &vui->vrings[VHOST_VRING_IDX_TX (*queue)];
- rv = vnet_hw_interface_set_rx_mode (vnm, vui->hw_if_index, *queue,
- txvq->mode);
- if (rv)
- vu_log_warn (vui, "unable to set rx mode for interface %d, "
- "queue %d: rc=%d", vui->hw_if_index, *queue, rv);
- }
- });
- /* *INDENT-ON* */
+ u32 q = qid >> 1;
+
+ ASSERT ((qid & 1) == 1); // should be odd
+ // Assign new queue mappings for the interface
+ vnet_hw_interface_set_input_node (vnm, vui->hw_if_index,
+ vhost_user_input_node.index);
+ vnet_hw_interface_assign_rx_thread (vnm, vui->hw_if_index, q, ~0);
+ if (txvq->mode == VNET_HW_INTERFACE_RX_MODE_UNKNOWN)
+ /* Set polling as the default */
+ txvq->mode = VNET_HW_INTERFACE_RX_MODE_POLLING;
+ txvq->qid = q;
+ rv = vnet_hw_interface_set_rx_mode (vnm, vui->hw_if_index, q, txvq->mode);
+ if (rv)
+ vu_log_warn (vui, "unable to set rx mode for interface %d, "
+ "queue %d: rc=%d", vui->hw_if_index, q, rv);
}
/** @brief Returns whether at least one TX and one RX vring are enabled */
return found[0] && found[1];
}
-static void
+static_always_inline void
vhost_user_update_iface_state (vhost_user_intf_t * vui)
{
/* if we have pointers to descriptor table, go up */
: 0);
vui->is_ready = is_ready;
}
- vhost_user_rx_thread_placement ();
- vhost_user_tx_thread_placement (vui);
}
static void
return 0;
}
+static_always_inline void
+vhost_user_thread_placement (vhost_user_intf_t * vui, u32 qid)
+{
+ if (qid & 1) // RX is odd, TX is even
+ {
+ if (vui->vrings[qid].qid == -1)
+ vhost_user_rx_thread_placement (vui, qid);
+ }
+ else
+ vhost_user_tx_thread_placement (vui);
+}
+
static clib_error_t *
vhost_user_kickfd_read_ready (clib_file_t * uf)
{
if (!vui->vrings[qid].started ||
(vhost_user_intf_ready (vui) != vui->is_ready))
{
- vlib_worker_thread_barrier_sync (vlib_get_main ());
- vui->vrings[qid].started = 1;
- vhost_user_update_iface_state (vui);
- vlib_worker_thread_barrier_release (vlib_get_main ());
+ if (vui->vrings[qid].started == 0)
+ {
+ vui->vrings[qid].started = 1;
+ vhost_user_thread_placement (vui, qid);
+ vhost_user_update_iface_state (vui);
+ }
}
vhost_user_set_interrupt_pending (vui, uf->private_data);
vring->kickfd_idx = ~0;
vring->callfd_idx = ~0;
vring->errfd = -1;
+ vring->qid = -1;
/*
* We have a bug with some qemu 2.5, and this may be a fix.
vhost_user_vring_close (vhost_user_intf_t * vui, u32 qid)
{
vhost_user_vring_t *vring = &vui->vrings[qid];
+
if (vring->kickfd_idx != ~0)
{
clib_file_t *uf = pool_elt_at_index (file_main.file_pool,
close (vring->errfd);
vring->errfd = -1;
}
+
+ // save the qid so that we don't need to unassign and assign_rx_thread
+ // when the interface comes back up. They are expensive calls.
+ u16 q = vui->vrings[qid].qid;
vhost_user_vring_init (vui, qid);
+ vui->vrings[qid].qid = q;
}
static_always_inline void
static clib_error_t *
vhost_user_socket_read (clib_file_t * uf)
{
- int n, i;
+ int n, i, j;
int fd, number_of_fds = 0;
int fds[VHOST_MEMORY_MAX_NREGIONS];
vhost_user_msg_t msg;
u8 q;
clib_file_t template = { 0 };
vnet_main_t *vnm = vnet_get_main ();
+ vlib_main_t *vm = vlib_get_main ();
vui = pool_elt_at_index (vum->vhost_user_interfaces, uf->private_data);
n = recvmsg (uf->file_descriptor, &mh, 0);
- /* Stop workers to avoid end of the world */
- vlib_worker_thread_barrier_sync (vlib_get_main ());
-
if (n != VHOST_USER_MSG_HDR_SZ)
{
if (n == -1)
msg.size = sizeof (msg.u64);
vu_log_debug (vui, "if %d msg VHOST_USER_GET_FEATURES - reply "
"0x%016llx", vui->hw_if_index, msg.u64);
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
+ {
+ vu_log_debug (vui, "could not send message response");
+ goto close_socket;
+ }
break;
case VHOST_USER_SET_FEATURES:
ASSERT (vui->virtio_net_hdr_sz < VLIB_BUFFER_PRE_DATA_SIZE);
vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
vui->is_ready = 0;
-
- /*for (q = 0; q < VHOST_VRING_MAX_N; q++)
- vhost_user_vring_close(&vui->vrings[q]); */
-
+ vhost_user_update_iface_state (vui);
break;
case VHOST_USER_SET_MEM_TABLE:
if ((msg.memory.nregions < 1) ||
(msg.memory.nregions > VHOST_MEMORY_MAX_NREGIONS))
{
-
vu_log_debug (vui, "number of mem regions must be between 1 and %i",
VHOST_MEMORY_MAX_NREGIONS);
-
goto close_socket;
}
vu_log_debug (vui, "each memory region must have FD");
goto close_socket;
}
- unmap_all_mem_regions (vui);
+
+ /* Do the mmap without barrier sync */
+ void *region_mmap_addr[VHOST_MEMORY_MAX_NREGIONS];
for (i = 0; i < msg.memory.nregions; i++)
{
- clib_memcpy_fast (&(vui->regions[i]), &msg.memory.regions[i],
- sizeof (vhost_user_memory_region_t));
-
long page_sz = get_huge_page_size (fds[i]);
/* align size to page */
- ssize_t map_sz = (vui->regions[i].memory_size +
- vui->regions[i].mmap_offset +
+ ssize_t map_sz = (msg.memory.regions[i].memory_size +
+ msg.memory.regions[i].mmap_offset +
page_sz - 1) & ~(page_sz - 1);
- vui->region_mmap_addr[i] = mmap (0, map_sz, PROT_READ | PROT_WRITE,
- MAP_SHARED, fds[i], 0);
- vui->region_guest_addr_lo[i] = vui->regions[i].guest_phys_addr;
- vui->region_guest_addr_hi[i] = vui->regions[i].guest_phys_addr +
- vui->regions[i].memory_size;
-
- vu_log_debug (vui, "map memory region %d addr 0 len 0x%lx fd %d "
- "mapped 0x%lx page_sz 0x%x", i, map_sz, fds[i],
- vui->region_mmap_addr[i], page_sz);
-
- if (vui->region_mmap_addr[i] == MAP_FAILED)
+ region_mmap_addr[i] = mmap (0, map_sz, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fds[i], 0);
+ if (region_mmap_addr[i] == MAP_FAILED)
{
vu_log_err (vui, "failed to map memory. errno is %d", errno);
+ for (j = 0; j < i; j++)
+ munmap (region_mmap_addr[j], map_sz);
goto close_socket;
}
+ vu_log_debug (vui, "map memory region %d addr 0 len 0x%lx fd %d "
+ "mapped 0x%lx page_sz 0x%x", i, map_sz, fds[i],
+ region_mmap_addr[i], page_sz);
+ }
+
+ vlib_worker_thread_barrier_sync (vm);
+ unmap_all_mem_regions (vui);
+ for (i = 0; i < msg.memory.nregions; i++)
+ {
+ clib_memcpy_fast (&(vui->regions[i]), &msg.memory.regions[i],
+ sizeof (vhost_user_memory_region_t));
+
+ vui->region_mmap_addr[i] = region_mmap_addr[i];
+ vui->region_guest_addr_lo[i] = vui->regions[i].guest_phys_addr;
+ vui->region_guest_addr_hi[i] = vui->regions[i].guest_phys_addr +
+ vui->regions[i].memory_size;
+
vui->region_mmap_addr[i] += vui->regions[i].mmap_offset;
vui->region_mmap_fd[i] = fds[i];
vui->nregions++;
}
+ vlib_worker_thread_barrier_release (vm);
break;
case VHOST_USER_SET_VRING_NUM:
goto close_socket;
}
- vui->vrings[msg.state.index].desc = (vring_desc_t *)
- map_user_mem (vui, msg.addr.desc_user_addr);
- vui->vrings[msg.state.index].used = (vring_used_t *)
- map_user_mem (vui, msg.addr.used_user_addr);
- vui->vrings[msg.state.index].avail = (vring_avail_t *)
- map_user_mem (vui, msg.addr.avail_user_addr);
+ vring_desc_t *desc = map_user_mem (vui, msg.addr.desc_user_addr);
+ vring_used_t *used = map_user_mem (vui, msg.addr.used_user_addr);
+ vring_avail_t *avail = map_user_mem (vui, msg.addr.avail_user_addr);
- if ((vui->vrings[msg.state.index].desc == NULL) ||
- (vui->vrings[msg.state.index].used == NULL) ||
- (vui->vrings[msg.state.index].avail == NULL))
+ if ((desc == NULL) || (used == NULL) || (avail == NULL))
{
vu_log_debug (vui, "failed to map user memory for hw_if_index %d",
vui->hw_if_index);
goto close_socket;
}
+ vlib_worker_thread_barrier_sync (vm);
+ vui->vrings[msg.state.index].desc = desc;
+ vui->vrings[msg.state.index].used = used;
+ vui->vrings[msg.state.index].avail = avail;
+
vui->vrings[msg.state.index].log_guest_addr = msg.addr.log_guest_addr;
vui->vrings[msg.state.index].log_used =
(msg.addr.flags & (1 << VHOST_VRING_F_LOG)) ? 1 : 0;
/* Spec says: If VHOST_USER_F_PROTOCOL_FEATURES has not been negotiated,
the ring is initialized in an enabled state. */
if (!(vui->features & (1 << FEAT_VHOST_USER_F_PROTOCOL_FEATURES)))
- {
- vui->vrings[msg.state.index].enabled = 1;
- }
+ vui->vrings[msg.state.index].enabled = 1;
vui->vrings[msg.state.index].last_used_idx =
vui->vrings[msg.state.index].last_avail_idx =
/* tell driver that we don't want interrupts */
vui->vrings[msg.state.index].used->flags = VRING_USED_F_NO_NOTIFY;
+ vlib_worker_thread_barrier_release (vm);
+ vhost_user_update_iface_state (vui);
break;
case VHOST_USER_SET_OWNER:
//When no kickfd is set, the queue is initialized as started
vui->vrings[q].kickfd_idx = ~0;
vui->vrings[q].started = 1;
+ vhost_user_thread_placement (vui, q);
}
-
+ vhost_user_update_iface_state (vui);
break;
case VHOST_USER_SET_VRING_ERR:
}
else
vui->vrings[q].errfd = -1;
-
break;
case VHOST_USER_SET_VRING_BASE:
vu_log_debug (vui, "if %d msg VHOST_USER_SET_VRING_BASE idx %d num %d",
vui->hw_if_index, msg.state.index, msg.state.num);
-
+ vlib_worker_thread_barrier_sync (vm);
vui->vrings[msg.state.index].last_avail_idx = msg.state.num;
+ vlib_worker_thread_barrier_release (vm);
break;
case VHOST_USER_GET_VRING_BASE:
goto close_socket;
}
+ /* protection is needed to prevent rx/tx from changing last_avail_idx */
+ vlib_worker_thread_barrier_sync (vm);
/*
* Copy last_avail_idx from the vring before closing it because
* closing the vring also initializes the vring last_avail_idx
msg.flags |= 4;
msg.size = sizeof (msg.state);
- /* Spec says: Client must [...] stop ring upon receiving VHOST_USER_GET_VRING_BASE. */
+ /*
+ * Spec says: Client must [...] stop ring upon receiving
+ * VHOST_USER_GET_VRING_BASE
+ */
vhost_user_vring_close (vui, msg.state.index);
+ vlib_worker_thread_barrier_release (vm);
vu_log_debug (vui, "if %d msg VHOST_USER_GET_VRING_BASE idx %d num %d",
vui->hw_if_index, msg.state.index, msg.state.num);
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
+ {
+ vu_log_debug (vui, "could not send message response");
+ goto close_socket;
+ }
+ vhost_user_update_iface_state (vui);
break;
case VHOST_USER_NONE:
vu_log_debug (vui, "if %d msg VHOST_USER_NONE", vui->hw_if_index);
-
break;
case VHOST_USER_SET_LOG_BASE:
- {
- vu_log_debug (vui, "if %d msg VHOST_USER_SET_LOG_BASE",
- vui->hw_if_index);
-
- if (msg.size != sizeof (msg.log))
- {
- vu_log_debug (vui, "invalid msg size for VHOST_USER_SET_LOG_BASE:"
- " %d instead of %d", msg.size, sizeof (msg.log));
- goto close_socket;
- }
+ vu_log_debug (vui, "if %d msg VHOST_USER_SET_LOG_BASE",
+ vui->hw_if_index);
- if (!
- (vui->protocol_features & (1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD)))
- {
- vu_log_debug (vui, "VHOST_USER_PROTOCOL_F_LOG_SHMFD not set but "
- "VHOST_USER_SET_LOG_BASE received");
- goto close_socket;
- }
+ if (msg.size != sizeof (msg.log))
+ {
+ vu_log_debug (vui, "invalid msg size for VHOST_USER_SET_LOG_BASE:"
+ " %d instead of %d", msg.size, sizeof (msg.log));
+ goto close_socket;
+ }
- fd = fds[0];
- /* align size to page */
- long page_sz = get_huge_page_size (fd);
- ssize_t map_sz =
- (msg.log.size + msg.log.offset + page_sz - 1) & ~(page_sz - 1);
+ if (!(vui->protocol_features & (1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD)))
+ {
+ vu_log_debug (vui, "VHOST_USER_PROTOCOL_F_LOG_SHMFD not set but "
+ "VHOST_USER_SET_LOG_BASE received");
+ goto close_socket;
+ }
- vui->log_base_addr = mmap (0, map_sz, PROT_READ | PROT_WRITE,
- MAP_SHARED, fd, 0);
+ fd = fds[0];
+ /* align size to page */
+ long page_sz = get_huge_page_size (fd);
+ ssize_t map_sz =
+ (msg.log.size + msg.log.offset + page_sz - 1) & ~(page_sz - 1);
- vu_log_debug (vui, "map log region addr 0 len 0x%lx off 0x%lx fd %d "
- "mapped 0x%lx", map_sz, msg.log.offset, fd,
- vui->log_base_addr);
+ void *log_base_addr = mmap (0, map_sz, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fd, 0);
- if (vui->log_base_addr == MAP_FAILED)
- {
- vu_log_err (vui, "failed to map memory. errno is %d", errno);
- goto close_socket;
- }
+ vu_log_debug (vui, "map log region addr 0 len 0x%lx off 0x%lx fd %d "
+ "mapped 0x%lx", map_sz, msg.log.offset, fd,
+ log_base_addr);
- vui->log_base_addr += msg.log.offset;
- vui->log_size = msg.log.size;
+ if (log_base_addr == MAP_FAILED)
+ {
+ vu_log_err (vui, "failed to map memory. errno is %d", errno);
+ goto close_socket;
+ }
- msg.flags |= 4;
- msg.size = sizeof (msg.u64);
+ vlib_worker_thread_barrier_sync (vm);
+ vui->log_base_addr = log_base_addr;
+ vui->log_base_addr += msg.log.offset;
+ vui->log_size = msg.log.size;
+ vlib_worker_thread_barrier_release (vm);
- break;
- }
+ msg.flags |= 4;
+ msg.size = sizeof (msg.u64);
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
+ {
+ vu_log_debug (vui, "could not send message response");
+ goto close_socket;
+ }
+ break;
case VHOST_USER_SET_LOG_FD:
vu_log_debug (vui, "if %d msg VHOST_USER_SET_LOG_FD", vui->hw_if_index);
-
break;
case VHOST_USER_GET_PROTOCOL_FEATURES:
msg.size = sizeof (msg.u64);
vu_log_debug (vui, "if %d msg VHOST_USER_GET_PROTOCOL_FEATURES - "
"reply 0x%016llx", vui->hw_if_index, msg.u64);
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
+ {
+ vu_log_debug (vui, "could not send message response");
+ goto close_socket;
+ }
break;
case VHOST_USER_SET_PROTOCOL_FEATURES:
vu_log_debug (vui, "if %d msg VHOST_USER_SET_PROTOCOL_FEATURES "
"features 0x%016llx", vui->hw_if_index, msg.u64);
-
vui->protocol_features = msg.u64;
-
break;
case VHOST_USER_GET_QUEUE_NUM:
msg.size = sizeof (msg.u64);
vu_log_debug (vui, "if %d msg VHOST_USER_GET_QUEUE_NUM - reply %d",
vui->hw_if_index, msg.u64);
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
+ {
+ vu_log_debug (vui, "could not send message response");
+ goto close_socket;
+ }
break;
case VHOST_USER_SET_VRING_ENABLE:
}
vui->vrings[msg.state.index].enabled = msg.state.num;
+ vhost_user_thread_placement (vui, msg.state.index);
+ vhost_user_update_iface_state (vui);
break;
default:
goto close_socket;
}
- /* if we need to reply */
- if (msg.flags & 4)
- {
- n =
- send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
- if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
- {
- vu_log_debug (vui, "could not send message response");
- goto close_socket;
- }
- }
-
- vhost_user_update_iface_state (vui);
- vlib_worker_thread_barrier_release (vlib_get_main ());
return 0;
close_socket:
+ vlib_worker_thread_barrier_sync (vm);
vhost_user_if_disconnect (vui);
+ vlib_worker_thread_barrier_release (vm);
vhost_user_update_iface_state (vui);
- vlib_worker_thread_barrier_release (vlib_get_main ());
return 0;
}
vu_log_debug (vui, "socket error on if %d", vui->sw_if_index);
vlib_worker_thread_barrier_sync (vm);
vhost_user_if_disconnect (vui);
- vhost_user_rx_thread_placement ();
vlib_worker_thread_barrier_release (vm);
return 0;
}
static clib_error_t *
vhost_user_init (vlib_main_t * vm)
{
- clib_error_t *error;
vhost_user_main_t *vum = &vhost_user_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
- error = vlib_call_init_function (vm, ip4_init);
- if (error)
- return error;
-
vum->log_default = vlib_log_register_class ("vhost-user", 0);
vum->coalesce_frames = 32;
return 0;
}
-VLIB_INIT_FUNCTION (vhost_user_init);
+/* *INDENT-OFF* */
+VLIB_INIT_FUNCTION (vhost_user_init) =
+{
+ .runs_after = VLIB_INITS("ip4_init"),
+};
+/* *INDENT-ON* */
static uword
vhost_user_send_interrupt_process (vlib_main_t * vm,
f64 timeout = 3153600000.0 /* 100 years */ ;
uword event_type, *event_data = 0;
vhost_user_main_t *vum = &vhost_user_main;
- u16 *queue;
+ u16 qid;
f64 now, poll_time_remaining;
f64 next_timeout;
u8 stop_timer = 0;
/* *INDENT-OFF* */
pool_foreach (vui, vum->vhost_user_interfaces, {
next_timeout = timeout;
- vec_foreach (queue, vui->rx_queues)
+ for (qid = 0; qid < VHOST_VRING_MAX_N / 2; qid += 2)
{
- vhost_user_vring_t *rxvq =
- &vui->vrings[VHOST_VRING_IDX_RX (*queue)];
- vhost_user_vring_t *txvq =
- &vui->vrings[VHOST_VRING_IDX_TX (*queue)];
+ vhost_user_vring_t *rxvq = &vui->vrings[qid];
+ vhost_user_vring_t *txvq = &vui->vrings[qid + 1];
+ if (txvq->qid == -1)
+ continue;
if (txvq->n_since_last_int)
{
if (now >= txvq->int_deadline)
for (q = 0; q < VHOST_VRING_MAX_N; q++)
{
+ // Remove existing queue mapping for the interface
+ if (q & 1)
+ {
+ int rv;
+ vnet_main_t *vnm = vnet_get_main ();
+ vhost_user_vring_t *txvq = &vui->vrings[q];
+
+ if (txvq->qid != -1)
+ {
+ rv = vnet_hw_interface_unassign_rx_thread (vnm,
+ vui->hw_if_index,
+ q >> 1);
+ if (rv)
+ vu_log_warn (vui, "unable to unassign interface %d, "
+ "queue %d: rc=%d", vui->hw_if_index, q >> 1, rv);
+ }
+ }
+
clib_mem_free ((void *) vui->vring_locks[q]);
}
vhost_user_intf_t *vui;
int rv = 0;
vnet_hw_interface_t *hwif;
- u16 *queue;
+ u16 qid;
- if (!(hwif = vnet_get_sup_hw_interface (vnm, sw_if_index)) ||
- hwif->dev_class_index != vhost_user_device_class.index)
+ if (!
+ (hwif =
+ vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index))
+ || hwif->dev_class_index != vhost_user_device_class.index)
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
vui = pool_elt_at_index (vum->vhost_user_interfaces, hwif->dev_instance);
vu_log_debug (vui, "Deleting vhost-user interface %s (instance %d)",
hwif->name, hwif->dev_instance);
- vec_foreach (queue, vui->rx_queues)
- {
- vhost_user_vring_t *txvq;
+ for (qid = 1; qid < VHOST_VRING_MAX_N / 2; qid += 2)
+ {
+ vhost_user_vring_t *txvq = &vui->vrings[qid];
- txvq = &vui->vrings[VHOST_VRING_IDX_TX (*queue)];
- if ((vum->ifq_count > 0) &&
- ((txvq->mode == VNET_HW_INTERFACE_RX_MODE_INTERRUPT) ||
- (txvq->mode == VNET_HW_INTERFACE_RX_MODE_ADAPTIVE)))
- {
- vum->ifq_count--;
- // Stop the timer if there is no more interrupt interface/queue
- if ((vum->ifq_count == 0) &&
- (vum->coalesce_time > 0.0) && (vum->coalesce_frames > 0))
- {
- vlib_process_signal_event (vm,
- vhost_user_send_interrupt_node.index,
- VHOST_USER_EVENT_STOP_TIMER, 0);
- break;
- }
- }
- }
+ if (txvq->qid == -1)
+ continue;
+ if ((vum->ifq_count > 0) &&
+ ((txvq->mode == VNET_HW_INTERFACE_RX_MODE_INTERRUPT) ||
+ (txvq->mode == VNET_HW_INTERFACE_RX_MODE_ADAPTIVE)))
+ {
+ vum->ifq_count--;
+ // Stop the timer if there is no more interrupt interface/queue
+ if ((vum->ifq_count == 0) &&
+ (vum->coalesce_time > 0.0) && (vum->coalesce_frames > 0))
+ {
+ vlib_process_signal_event (vm,
+ vhost_user_send_interrupt_node.index,
+ VHOST_USER_EVENT_STOP_TIMER, 0);
+ break;
+ }
+ }
+ }
// Disable and reset interface
vhost_user_term_if (vui);
}
}
+ /* Protect the uninitialized vui from being dispatched by rx/tx */
+ vlib_worker_thread_barrier_sync (vm);
pool_get (vhost_user_main.vhost_user_interfaces, vui);
-
vhost_user_create_ethernet (vnm, vm, vui, hwaddr);
+ vlib_worker_thread_barrier_release (vm);
+
vhost_user_vui_init (vnm, vui, server_sock_fd, sock_filename,
feature_mask, &sw_if_idx);
vnet_sw_interface_set_mtu (vnm, vui->sw_if_index, 9000);
+ vhost_user_rx_thread_placement (vui, 1);
if (renumber)
vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
vnet_hw_interface_t *hwif;
uword *if_index;
- if (!(hwif = vnet_get_sup_hw_interface (vnm, sw_if_index)) ||
- hwif->dev_class_index != vhost_user_device_class.index)
+ if (!
+ (hwif =
+ vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index))
+ || hwif->dev_class_index != vhost_user_device_class.index)
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
if (sock_filename == NULL || !(strlen (sock_filename) > 0))
&sw_if_index))
{
vnet_hw_interface_t *hwif =
- vnet_get_sup_hw_interface (vnm, sw_if_index);
+ vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index);
if (hwif == NULL ||
vhost_user_device_class.index != hwif->dev_class_index)
{
vhost_user_intf_t *vui;
u32 hw_if_index, *hw_if_indices = 0;
vnet_hw_interface_t *hi;
- u16 *queue;
+ u16 qid;
u32 ci;
int i, j, q;
int show_descr = 0;
vlib_cli_output (vm, " rx placement: ");
- vec_foreach (queue, vui->rx_queues)
- {
- vnet_main_t *vnm = vnet_get_main ();
- uword thread_index;
- vnet_hw_interface_rx_mode mode;
-
- thread_index = vnet_get_device_input_thread_index (vnm,
- vui->hw_if_index,
- *queue);
- vnet_hw_interface_get_rx_mode (vnm, vui->hw_if_index, *queue, &mode);
- vlib_cli_output (vm, " thread %d on vring %d, %U\n",
- thread_index, VHOST_VRING_IDX_TX (*queue),
- format_vnet_hw_interface_rx_mode, mode);
- }
+ for (qid = 1; qid < VHOST_VRING_MAX_N / 2; qid += 2)
+ {
+ vnet_main_t *vnm = vnet_get_main ();
+ uword thread_index;
+ vnet_hw_interface_rx_mode mode;
+ vhost_user_vring_t *txvq = &vui->vrings[qid];
+
+ if (txvq->qid == -1)
+ continue;
+ thread_index =
+ vnet_get_device_input_thread_index (vnm, vui->hw_if_index,
+ qid >> 1);
+ vnet_hw_interface_get_rx_mode (vnm, vui->hw_if_index, qid >> 1,
+ &mode);
+ vlib_cli_output (vm, " thread %d on vring %d, %U\n",
+ thread_index, qid,
+ format_vnet_hw_interface_rx_mode, mode);
+ }
vlib_cli_output (vm, " tx placement: %s\n",
vui->use_tx_spinlock ? "spin-lock" : "lock-free");
.short_help = "create vhost-user socket <socket-filename> [server] "
"[feature-mask <hex>] [hwaddr <mac-addr>] [renumber <dev_instance>] ",
.function = vhost_user_connect_command_fn,
+ .is_mp_safe = 1,
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff