#include <vnet/ethernet/ethernet.h>
#include <vnet/devices/devices.h>
#include <vnet/feature/feature.h>
+#include <vnet/interface/rx_queue_funcs.h>
#include <vnet/devices/virtio/vhost_user.h>
#include <vnet/devices/virtio/vhost_user_inline.h>
}
vui->nregions = 0;
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ for (q = 0; q < vui->num_qid; q++)
{
vq = &vui->vrings[q];
vq->avail = 0;
vui->use_tx_spinlock = 0;
while (1)
{
- for (qid = 0; qid < VHOST_VRING_MAX_N / 2; qid++)
+ for (qid = 0; qid < vui->num_qid / 2; qid++)
{
vhost_user_vring_t *rxvq = &vui->vrings[VHOST_VRING_IDX_RX (qid)];
if (!rxvq->started || !rxvq->enabled)
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);
+ vnet_hw_if_set_input_node (vnm, vui->hw_if_index,
+ vhost_user_input_node.index);
+ txvq->queue_index = vnet_hw_if_register_rx_queue (vnm, vui->hw_if_index, q,
+ VNET_HW_IF_RXQ_THREAD_ANY);
if (txvq->mode == VNET_HW_IF_RX_MODE_UNKNOWN)
/* Set polling as the default */
txvq->mode = VNET_HW_IF_RX_MODE_POLLING;
txvq->qid = q;
- rv = vnet_hw_interface_set_rx_mode (vnm, vui->hw_if_index, q, txvq->mode);
+ rv = vnet_hw_if_set_rx_queue_mode (vnm, txvq->queue_index, 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);
+ vnet_hw_if_update_runtime_data (vnm, vui->hw_if_index);
}
/** @brief Returns whether at least one TX and one RX vring are enabled */
{
int i, found[2] = { }; //RX + TX
- for (i = 0; i < VHOST_VRING_MAX_N; i++)
+ for (i = 0; i < vui->num_qid; i++)
if (vui->vrings[i].started && vui->vrings[i].enabled)
found[i & 1] = 1;
}
}
-static void
-vhost_user_set_interrupt_pending (vhost_user_intf_t * vui, u32 ifq)
-{
- u32 qid;
- vnet_main_t *vnm = vnet_get_main ();
-
- qid = ifq & 0xff;
- if ((qid & 1) == 0)
- /* Only care about the odd number, or TX, virtqueue */
- return;
-
- if (vhost_user_intf_ready (vui))
- // qid >> 1 is to convert virtqueue number to vring queue index
- vnet_device_input_set_interrupt_pending (vnm, vui->hw_if_index, qid >> 1);
-}
-
static clib_error_t *
vhost_user_callfd_read_ready (clib_file_t * uf)
{
static clib_error_t *
vhost_user_kickfd_read_ready (clib_file_t * uf)
{
- __attribute__ ((unused)) int n;
+ __attribute__ ((unused)) ssize_t n;
u8 buff[8];
+ vhost_user_main_t *vum = &vhost_user_main;
vhost_user_intf_t *vui =
- pool_elt_at_index (vhost_user_main.vhost_user_interfaces,
- uf->private_data >> 8);
+ pool_elt_at_index (vum->vhost_user_interfaces, uf->private_data >> 8);
u32 qid = uf->private_data & 0xff;
+ u32 is_txq = qid & 1;
+ vhost_user_vring_t *vq = &vui->vrings[qid];
+ vnet_main_t *vnm = vnet_get_main ();
- n = read (uf->file_descriptor, ((char *) &buff), 8);
- vu_log_debug (vui, "if %d KICK queue %d", uf->private_data >> 8, qid);
- if (!vui->vrings[qid].started ||
- (vhost_user_intf_ready (vui) != vui->is_ready))
+ n = read (uf->file_descriptor, buff, 8);
+ if (vq->started == 0)
{
- if (vui->vrings[qid].started == 0)
- {
- vui->vrings[qid].started = 1;
- vhost_user_thread_placement (vui, qid);
- vhost_user_update_iface_state (vui);
- }
+ vq->started = 1;
+ vhost_user_thread_placement (vui, qid);
+ vhost_user_update_iface_state (vui);
+ if (is_txq)
+ vnet_hw_if_set_rx_queue_file_index (vnm, vq->queue_index,
+ vq->kickfd_idx);
}
- vhost_user_set_interrupt_pending (vui, uf->private_data);
+ if (is_txq && (vhost_user_intf_ready (vui) &&
+ ((vq->mode == VNET_HW_IF_RX_MODE_ADAPTIVE) ||
+ (vq->mode == VNET_HW_IF_RX_MODE_INTERRUPT))))
+ vnet_hw_if_rx_queue_set_int_pending (vnm, vq->queue_index);
+
return 0;
}
vhost_user_vring_init (vhost_user_intf_t * vui, u32 qid)
{
vhost_user_vring_t *vring = &vui->vrings[qid];
+
clib_memset (vring, 0, sizeof (*vring));
vring->kickfd_idx = ~0;
vring->callfd_idx = ~0;
vring->errfd = -1;
vring->qid = -1;
+ clib_spinlock_init (&vring->vring_lock);
+
/*
* We have a bug with some qemu 2.5, and this may be a fix.
* Feel like interpretation holy text, but this is from vhost-user.txt.
vring->errfd = -1;
}
+ clib_spinlock_free (&vring->vring_lock);
+
// 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;
vui->is_ready = 0;
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ for (q = 0; q < vui->num_qid; q++)
vhost_user_vring_close (vui, q);
unmap_all_mem_regions (vui);
VIRTIO_FEATURE (VIRTIO_F_VERSION_1);
msg.u64 &= vui->feature_mask;
+ if (vui->enable_event_idx)
+ msg.u64 |= VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
if (vui->enable_gso)
msg.u64 |= FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS;
if (vui->enable_packed)
if (vui->enable_gso &&
((vui->features & FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS)
== FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS))
- hw->flags |=
- (VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO |
- VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD);
+ {
+ hw->caps |= (VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO |
+ VNET_HW_INTERFACE_CAP_SUPPORTS_TX_TCP_CKSUM |
+ VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_CKSUM);
+ }
else
- hw->flags &= ~(VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO |
- VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD);
+ {
+ hw->caps &= ~(VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO |
+ VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM);
+ }
vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
vui->is_ready = 0;
vhost_user_update_iface_state (vui);
* Re-compute desc, used, and avail descriptor table if vring address
* is set.
*/
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ for (q = 0; q < vui->num_qid; q++)
{
if (vui->vrings[q].desc_user_addr &&
vui->vrings[q].used_user_addr && vui->vrings[q].avail_user_addr)
if ((msg.state.num > 32768) || /* maximum ring size is 32768 */
(msg.state.num == 0) || /* it cannot be zero */
((msg.state.num - 1) & msg.state.num) || /* must be power of 2 */
- (msg.state.index >= VHOST_VRING_MAX_N))
- goto close_socket;
+ (msg.state.index >= vui->num_qid))
+ {
+ vu_log_debug (vui, "invalid VHOST_USER_SET_VRING_NUM: msg.state.num"
+ " %d, msg.state.index %d, curruent max q %d",
+ msg.state.num, msg.state.index, vui->num_qid);
+ goto close_socket;
+ }
vui->vrings[msg.state.index].qsz_mask = msg.state.num - 1;
break;
vu_log_debug (vui, "if %d msg VHOST_USER_SET_VRING_ADDR idx %d",
vui->hw_if_index, msg.state.index);
- if (msg.state.index >= VHOST_VRING_MAX_N)
+ if (msg.state.index >= vui->num_qid)
{
vu_log_debug (vui, "invalid vring index VHOST_USER_SET_VRING_ADDR:"
- " %d >= %d", msg.state.index, VHOST_VRING_MAX_N);
+ " %u >= %u", msg.state.index, vui->num_qid);
goto close_socket;
}
vui->vrings[msg.state.index].last_used_idx =
vui->vrings[msg.state.index].last_avail_idx =
vui->vrings[msg.state.index].used->idx;
+ vui->vrings[msg.state.index].last_kick =
+ vui->vrings[msg.state.index].last_used_idx;
/* tell driver that we don't want interrupts */
if (vhost_user_is_packed_ring_supported (vui))
vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
- if (q >= VHOST_VRING_MAX_N)
- goto close_socket;
-
- /* if there is old fd, delete and close it */
- if (vui->vrings[q].callfd_idx != ~0)
+ if (vui->num_qid > q)
{
- clib_file_t *uf = pool_elt_at_index (file_main.file_pool,
- vui->vrings[q].callfd_idx);
- clib_file_del (&file_main, uf);
- vui->vrings[q].callfd_idx = ~0;
+ /* if there is old fd, delete and close it */
+ if (vui->vrings[q].callfd_idx != ~0)
+ {
+ clib_file_t *uf = pool_elt_at_index (file_main.file_pool,
+ vui->vrings[q].callfd_idx);
+ clib_file_del (&file_main, uf);
+ vui->vrings[q].callfd_idx = ~0;
+ }
+ }
+ else if (vec_len (vui->vrings) > q)
+ {
+ /* grow vrings by pair (RX + TX) */
+ vui->num_qid = (q & 1) ? (q + 1) : (q + 2);
+ }
+ else
+ {
+ u32 i, new_max_q, old_max_q = vec_len (vui->vrings);
+
+ /*
+ * Double the array size if it is less than 64 entries.
+ * Slow down thereafter.
+ */
+ if (vec_len (vui->vrings) < (VHOST_VRING_INIT_MQ_PAIR_SZ << 3))
+ new_max_q = vec_len (vui->vrings) << 1;
+ else
+ new_max_q = vec_len (vui->vrings) +
+ (VHOST_VRING_INIT_MQ_PAIR_SZ << 2);
+ if (new_max_q > (VHOST_VRING_MAX_MQ_PAIR_SZ << 1))
+ new_max_q = (VHOST_VRING_MAX_MQ_PAIR_SZ << 1);
+
+ /* sync with the worker threads, vrings may move due to realloc */
+ vlib_worker_thread_barrier_sync (vm);
+ vec_validate_aligned (vui->vrings, new_max_q - 1,
+ CLIB_CACHE_LINE_BYTES);
+ vlib_worker_thread_barrier_release (vm);
+
+ for (i = old_max_q; i < vec_len (vui->vrings); i++)
+ vhost_user_vring_init (vui, i);
+
+ /* grow vrings by pair (RX + TX) */
+ vui->num_qid = (q & 1) ? (q + 1) : (q + 2);
}
if (!(msg.u64 & VHOST_USER_VRING_NOFD_MASK))
template.file_descriptor = fds[0];
template.private_data =
((vui - vhost_user_main.vhost_user_interfaces) << 8) + q;
+ template.description = format (0, "vhost user");
vui->vrings[q].callfd_idx = clib_file_add (&file_main, &template);
}
else
vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
- if (q >= VHOST_VRING_MAX_N)
- goto close_socket;
+ if (q >= vui->num_qid)
+ {
+ vu_log_debug (vui, "invalid vring index VHOST_USER_SET_VRING_KICK:"
+ " %u >= %u", q, vui->num_qid);
+ goto close_socket;
+ }
if (vui->vrings[q].kickfd_idx != ~0)
{
vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
- if (q >= VHOST_VRING_MAX_N)
- goto close_socket;
+ if (q >= vui->num_qid)
+ {
+ vu_log_debug (vui, "invalid vring index VHOST_USER_SET_VRING_ERR:"
+ " %u >= %u", q, vui->num_qid);
+ goto close_socket;
+ }
if (vui->vrings[q].errfd != -1)
close (vui->vrings[q].errfd);
vu_log_debug (vui,
"if %d msg VHOST_USER_SET_VRING_BASE idx %d num 0x%x",
vui->hw_if_index, msg.state.index, msg.state.num);
- if (msg.state.index >= VHOST_VRING_MAX_N)
- goto close_socket;
+ if (msg.state.index >= vui->num_qid)
+ {
+ vu_log_debug (vui, "invalid vring index VHOST_USER_SET_VRING_ADDR:"
+ " %u >= %u", msg.state.index, vui->num_qid);
+ goto close_socket;
+ }
vlib_worker_thread_barrier_sync (vm);
vui->vrings[msg.state.index].last_avail_idx = msg.state.num;
if (vhost_user_is_packed_ring_supported (vui))
*/
vui->vrings[msg.state.index].last_used_idx =
vui->vrings[msg.state.index].last_avail_idx;
+ vui->vrings[msg.state.index].last_kick =
+ vui->vrings[msg.state.index].last_used_idx;
vui->vrings[msg.state.index].used_wrap_counter =
vui->vrings[msg.state.index].avail_wrap_counter;
break;
case VHOST_USER_GET_VRING_BASE:
- if (msg.state.index >= VHOST_VRING_MAX_N)
+ if (msg.state.index >= vui->num_qid)
{
vu_log_debug (vui, "invalid vring index VHOST_USER_GET_VRING_BASE:"
- " %d >= %d", msg.state.index, VHOST_VRING_MAX_N);
+ " %u >= %u", msg.state.index, vui->num_qid);
goto close_socket;
}
case VHOST_USER_GET_QUEUE_NUM:
msg.flags |= 4;
- msg.u64 = VHOST_VRING_MAX_N;
+ msg.u64 = VHOST_VRING_MAX_MQ_PAIR_SZ;
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);
vu_log_debug (vui, "if %d VHOST_USER_SET_VRING_ENABLE: %s queue %d",
vui->hw_if_index, msg.state.num ? "enable" : "disable",
msg.state.index);
- if (msg.state.index >= VHOST_VRING_MAX_N)
+ if (msg.state.index >= vui->num_qid)
{
vu_log_debug (vui, "invalid vring idx VHOST_USER_SET_VRING_ENABLE:"
- " %d >= %d", msg.state.index, VHOST_VRING_MAX_N);
+ " %u >= %u", msg.state.index, vui->num_qid);
goto close_socket;
}
template.error_function = vhost_user_socket_error;
template.file_descriptor = client_fd;
template.private_data = vui - vhost_user_main.vhost_user_interfaces;
+ template.description = format (0, "vhost interface %d", vui->sw_if_index);
vui->clib_file_index = clib_file_add (&file_main, &template);
+ vui->num_qid = 2;
return 0;
}
case ~0:
/* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
+ pool_foreach (vui, vum->vhost_user_interfaces) {
next_timeout = timeout;
- for (qid = 0; qid < VHOST_VRING_MAX_N / 2; qid += 2)
+ for (qid = 0; qid < vui->num_qid / 2; qid += 2)
{
vhost_user_vring_t *rxvq = &vui->vrings[qid];
vhost_user_vring_t *txvq = &vui->vrings[qid + 1];
if (txvq->n_since_last_int)
{
if (now >= txvq->int_deadline)
- vhost_user_send_call (vm, txvq);
+ vhost_user_send_call (vm, vui, txvq);
else
next_timeout = txvq->int_deadline - now;
}
if (rxvq->n_since_last_int)
{
if (now >= rxvq->int_deadline)
- vhost_user_send_call (vm, rxvq);
+ vhost_user_send_call (vm, vui, rxvq);
else
next_timeout = rxvq->int_deadline - now;
}
if ((next_timeout < timeout) && (next_timeout > 0.0))
timeout = next_timeout;
}
- });
+ }
/* *INDENT-ON* */
break;
timeout = 3.0;
/* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
+ pool_foreach (vui, vum->vhost_user_interfaces) {
if (vui->unix_server_index == ~0) { //Nothing to do for server sockets
if (vui->clib_file_index == ~0)
/* try to connect */
strncpy (sun.sun_path, (char *) vui->sock_filename,
sizeof (sun.sun_path) - 1);
+ sun.sun_path[sizeof (sun.sun_path) - 1] = 0;
/* Avoid hanging VPP if the other end does not accept */
if (fcntl(sockfd, F_SETFL, O_NONBLOCK) < 0)
template.file_descriptor = sockfd;
template.private_data =
vui - vhost_user_main.vhost_user_interfaces;
+ template.description = format (0, "vhost user process");
vui->clib_file_index = clib_file_add (&file_main, &template);
+ vui->num_qid = 2;
/* This sockfd is considered consumed */
sockfd = -1;
}
}
}
- });
+ }
/* *INDENT-ON* */
}
return 0;
vhost_user_update_gso_interface_count (vui, 0 /* delete */ );
vhost_user_update_iface_state (vui);
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ for (q = 0; q < vui->num_qid; 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]);
+ clib_spinlock_free (&vui->vrings[q].vring_lock);
}
if (vui->unix_server_index != ~0)
vu_log_debug (vui, "Deleting vhost-user interface %s (instance %d)",
hwif->name, hwif->dev_instance);
- for (qid = 1; qid < VHOST_VRING_MAX_N / 2; qid += 2)
+ for (qid = 1; qid < vui->num_qid / 2; qid += 2)
{
vhost_user_vring_t *txvq = &vui->vrings[qid];
// Delete ethernet interface
ethernet_delete_interface (vnm, vui->hw_if_index);
+ // free vrings
+ vec_free (vui->vrings);
+
// Back to pool
pool_put (vum->vhost_user_interfaces, vui);
vlib_worker_thread_barrier_sync (vlib_get_main ());
/* *INDENT-OFF* */
- pool_foreach (vui, vum->vhost_user_interfaces, {
+ pool_foreach (vui, vum->vhost_user_interfaces) {
vhost_user_delete_if (vnm, vm, vui->sw_if_index);
- });
+ }
/* *INDENT-ON* */
vlib_worker_thread_barrier_release (vlib_get_main ());
return 0;
* Create ethernet interface for vhost user interface.
*/
static void
-vhost_user_create_ethernet (vnet_main_t * vnm, vlib_main_t * vm,
- vhost_user_intf_t * vui, u8 * hwaddress)
+vhost_user_create_ethernet (vnet_main_t *vnm, vlib_main_t *vm,
+ vhost_user_intf_t *vui,
+ vhost_user_create_if_args_t *args)
{
vhost_user_main_t *vum = &vhost_user_main;
u8 hwaddr[6];
clib_error_t *error;
/* create hw and sw interface */
- if (hwaddress)
+ if (args->use_custom_mac)
{
- clib_memcpy (hwaddr, hwaddress, 6);
+ clib_memcpy (hwaddr, args->hwaddr, 6);
}
else
{
* Initialize vui with specified attributes
*/
static void
-vhost_user_vui_init (vnet_main_t * vnm,
- vhost_user_intf_t * vui,
- int server_sock_fd,
- const char *sock_filename,
- u64 feature_mask, u32 * sw_if_index, u8 enable_gso,
- u8 enable_packed)
+vhost_user_vui_init (vnet_main_t * vnm, vhost_user_intf_t * vui,
+ int server_sock_fd, vhost_user_create_if_args_t * args,
+ u32 * sw_if_index)
{
vnet_sw_interface_t *sw;
int q;
template.read_function = vhost_user_socksvr_accept_ready;
template.file_descriptor = server_sock_fd;
template.private_data = vui - vum->vhost_user_interfaces; //hw index
+ template.description = format (0, "vhost user %d", sw);
vui->unix_server_index = clib_file_add (&file_main, &template);
}
else
}
vui->sw_if_index = sw->sw_if_index;
- strncpy (vui->sock_filename, sock_filename,
+ strncpy (vui->sock_filename, args->sock_filename,
ARRAY_LEN (vui->sock_filename) - 1);
vui->sock_errno = 0;
vui->is_ready = 0;
- vui->feature_mask = feature_mask;
+ vui->feature_mask = args->feature_mask;
vui->clib_file_index = ~0;
vui->log_base_addr = 0;
vui->if_index = vui - vum->vhost_user_interfaces;
- vui->enable_gso = enable_gso;
- vui->enable_packed = enable_packed;
+ vui->enable_gso = args->enable_gso;
+ vui->enable_event_idx = args->enable_event_idx;
+ vui->enable_packed = args->enable_packed;
/*
* enable_gso takes precedence over configurable feature mask if there
* is a clash.
* gso feature mask, we don't support one sided GSO or partial GSO.
*/
if ((vui->enable_gso == 0) &&
- ((feature_mask & FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS) ==
- (FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS)))
+ ((args->feature_mask & FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS)
+ == (FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS)))
vui->enable_gso = 1;
vhost_user_update_gso_interface_count (vui, 1 /* add */ );
mhash_set_mem (&vum->if_index_by_sock_name, vui->sock_filename,
&vui->if_index, 0);
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ vec_validate_aligned (vui->vrings, (VHOST_VRING_INIT_MQ_PAIR_SZ << 1) - 1,
+ CLIB_CACHE_LINE_BYTES);
+ vui->num_qid = 2;
+ for (q = 0; q < vec_len (vui->vrings); q++)
vhost_user_vring_init (vui, q);
- hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
+ hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
if (sw_if_index)
*sw_if_index = vui->sw_if_index;
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
- {
- vui->vring_locks[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
- CLIB_CACHE_LINE_BYTES);
- clib_memset ((void *) vui->vring_locks[q], 0, CLIB_CACHE_LINE_BYTES);
- }
-
vec_validate (vui->per_cpu_tx_qid,
vlib_get_thread_main ()->n_vlib_mains - 1);
vhost_user_tx_thread_placement (vui);
int
vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
- const char *sock_filename,
- u8 is_server,
- u32 * sw_if_index,
- u64 feature_mask,
- u8 renumber, u32 custom_dev_instance, u8 * hwaddr,
- u8 enable_gso, u8 enable_packed)
+ vhost_user_create_if_args_t * args)
{
vhost_user_intf_t *vui = NULL;
u32 sw_if_idx = ~0;
vhost_user_main_t *vum = &vhost_user_main;
uword *if_index;
- if (sock_filename == NULL || !(strlen (sock_filename) > 0))
+ if (args->sock_filename == NULL || !(strlen (args->sock_filename) > 0))
{
return VNET_API_ERROR_INVALID_ARGUMENT;
}
- if_index = mhash_get (&vum->if_index_by_sock_name, (void *) sock_filename);
+ if_index = mhash_get (&vum->if_index_by_sock_name,
+ (void *) args->sock_filename);
if (if_index)
{
- if (sw_if_index)
- {
- vui = &vum->vhost_user_interfaces[*if_index];
- *sw_if_index = vui->sw_if_index;
- }
+ vui = &vum->vhost_user_interfaces[*if_index];
+ args->sw_if_index = vui->sw_if_index;
return VNET_API_ERROR_IF_ALREADY_EXISTS;
}
- if (is_server)
+ if (args->is_server)
{
if ((rv =
- vhost_user_init_server_sock (sock_filename, &server_sock_fd)) != 0)
+ vhost_user_init_server_sock (args->sock_filename,
+ &server_sock_fd)) != 0)
{
return rv;
}
/* 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);
+ vhost_user_create_ethernet (vnm, vm, vui, args);
vlib_worker_thread_barrier_release (vm);
- vhost_user_vui_init (vnm, vui, server_sock_fd, sock_filename,
- feature_mask, &sw_if_idx, enable_gso, enable_packed);
+ vhost_user_vui_init (vnm, vui, server_sock_fd, args, &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);
+ if (args->renumber)
+ vnet_interface_name_renumber (sw_if_idx, args->custom_dev_instance);
- if (sw_if_index)
- *sw_if_index = sw_if_idx;
+ args->sw_if_index = sw_if_idx;
// Process node must connect
vlib_process_signal_event (vm, vhost_user_process_node.index, 0, 0);
int
vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
- const char *sock_filename,
- u8 is_server,
- u32 sw_if_index,
- u64 feature_mask, u8 renumber, u32 custom_dev_instance,
- u8 enable_gso, u8 enable_packed)
+ vhost_user_create_if_args_t * args)
{
vhost_user_main_t *vum = &vhost_user_main;
vhost_user_intf_t *vui = NULL;
vnet_hw_interface_t *hwif;
uword *if_index;
- if (!
- (hwif =
- vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index))
+ if (!(hwif = vnet_get_sup_hw_interface_api_visible_or_null (vnm,
+ args->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))
+ if (args->sock_filename == NULL || !(strlen (args->sock_filename) > 0))
return VNET_API_ERROR_INVALID_ARGUMENT;
vui = vec_elt_at_index (vum->vhost_user_interfaces, hwif->dev_instance);
* Disallow changing the interface to have the same path name
* as other interface
*/
- if_index = mhash_get (&vum->if_index_by_sock_name, (void *) sock_filename);
+ if_index = mhash_get (&vum->if_index_by_sock_name,
+ (void *) args->sock_filename);
if (if_index && (*if_index != vui->if_index))
return VNET_API_ERROR_IF_ALREADY_EXISTS;
// First try to open server socket
- if (is_server)
- if ((rv = vhost_user_init_server_sock (sock_filename,
+ if (args->is_server)
+ if ((rv = vhost_user_init_server_sock (args->sock_filename,
&server_sock_fd)) != 0)
return rv;
vhost_user_term_if (vui);
- vhost_user_vui_init (vnm, vui, server_sock_fd,
- sock_filename, feature_mask, &sw_if_idx, enable_gso,
- enable_packed);
+ vhost_user_vui_init (vnm, vui, server_sock_fd, args, &sw_if_idx);
- if (renumber)
- vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
+ if (args->renumber)
+ vnet_interface_name_renumber (sw_if_idx, args->custom_dev_instance);
// Process node must connect
vlib_process_signal_event (vm, vhost_user_process_node.index, 0, 0);
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
+ vnet_main_t *vnm = vnet_get_main ();
unformat_input_t _line_input, *line_input = &_line_input;
- u8 *sock_filename = NULL;
- u32 sw_if_index;
- u8 is_server = 0;
- u64 feature_mask = (u64) ~ (0ULL);
- u8 renumber = 0;
- u32 custom_dev_instance = ~0;
- u8 hwaddr[6];
- u8 *hw = NULL;
clib_error_t *error = NULL;
- u8 enable_gso = 0, enable_packed = 0;
+ vhost_user_create_if_args_t args = { 0 };
+ int rv;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
+ args.feature_mask = (u64) ~ (0ULL);
+ args.custom_dev_instance = ~0;
/* GSO feature is disable by default */
- feature_mask &= ~FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS;
+ args.feature_mask &= ~FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS;
/* packed-ring feature is disable by default */
- feature_mask &= ~VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
+ args.feature_mask &= ~VIRTIO_FEATURE (VIRTIO_F_RING_PACKED);
+ /* event_idx feature is disable by default */
+ args.feature_mask &= ~VIRTIO_FEATURE (VIRTIO_RING_F_EVENT_IDX);
+
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (line_input, "socket %s", &sock_filename))
+ if (unformat (line_input, "socket %s", &args.sock_filename))
;
else if (unformat (line_input, "server"))
- is_server = 1;
+ args.is_server = 1;
else if (unformat (line_input, "gso"))
- enable_gso = 1;
+ args.enable_gso = 1;
else if (unformat (line_input, "packed"))
- enable_packed = 1;
- else if (unformat (line_input, "feature-mask 0x%llx", &feature_mask))
+ args.enable_packed = 1;
+ else if (unformat (line_input, "event-idx"))
+ args.enable_event_idx = 1;
+ else if (unformat (line_input, "feature-mask 0x%llx",
+ &args.feature_mask))
;
- else
- if (unformat
- (line_input, "hwaddr %U", unformat_ethernet_address, hwaddr))
- hw = hwaddr;
- else if (unformat (line_input, "renumber %d", &custom_dev_instance))
- {
- renumber = 1;
- }
+ else if (unformat (line_input, "hwaddr %U", unformat_ethernet_address,
+ args.hwaddr))
+ args.use_custom_mac = 1;
+ else if (unformat (line_input, "renumber %d",
+ &args.custom_dev_instance))
+ args.renumber = 1;
else
{
error = clib_error_return (0, "unknown input `%U'",
}
}
- vnet_main_t *vnm = vnet_get_main ();
-
- int rv;
- if ((rv = vhost_user_create_if (vnm, vm, (char *) sock_filename,
- is_server, &sw_if_index, feature_mask,
- renumber, custom_dev_instance, hw,
- enable_gso, enable_packed)))
+ if ((rv = vhost_user_create_if (vnm, vm, &args)))
{
error = clib_error_return (0, "vhost_user_create_if returned %d", rv);
goto done;
}
- vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main (),
- sw_if_index);
+ vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnm,
+ args.sw_if_index);
done:
- vec_free (sock_filename);
+ vec_free (args.sock_filename);
unformat_free (line_input);
return error;
if (!out_vuids)
return -1;
- pool_foreach (vui, vum->vhost_user_interfaces,
- vec_add1 (hw_if_indices, vui->hw_if_index);
- );
+ pool_foreach (vui, vum->vhost_user_interfaces)
+ vec_add1 (hw_if_indices, vui->hw_if_index);
for (i = 0; i < vec_len (hw_if_indices); i++)
{
return s;
}
-static u8 *
-format_vhost_user_vring (u8 * s, va_list * args)
-{
- char *fmt = va_arg (*args, char *);
- vhost_user_intf_t *vui = va_arg (*args, vhost_user_intf_t *);
- int q = va_arg (*args, int);
-
- s = format (s, fmt, vui->vrings[q].avail->flags, vui->vrings[q].avail->idx,
- vui->vrings[q].used->flags, vui->vrings[q].used->idx);
- return s;
-}
-
static void
-vhost_user_show_fds (vlib_main_t * vm, vhost_user_intf_t * vui, int q)
+vhost_user_show_fds (vlib_main_t * vm, vhost_user_vring_t * vq)
{
- int kickfd = UNIX_GET_FD (vui->vrings[q].kickfd_idx);
- int callfd = UNIX_GET_FD (vui->vrings[q].callfd_idx);
+ int kickfd = UNIX_GET_FD (vq->kickfd_idx);
+ int callfd = UNIX_GET_FD (vq->callfd_idx);
vlib_cli_output (vm, " kickfd %d callfd %d errfd %d\n", kickfd, callfd,
- vui->vrings[q].errfd);
+ vq->errfd);
}
static void
u32 idx;
u32 n_entries;
vring_desc_t *desc_table;
+ vhost_user_vring_t *vq = &vui->vrings[q];
- if (vui->vrings[q].avail && vui->vrings[q].used)
- vlib_cli_output (vm, "%U", format_vhost_user_vring,
- " avail.flags %x avail.idx %d used.flags %x used.idx %d\n",
- vui, q);
+ if (vq->avail && vq->used)
+ vlib_cli_output (vm, " avail.flags %x avail event idx %u avail.idx %d "
+ "used event idx %u used.idx %d\n", vq->avail->flags,
+ vhost_user_avail_event_idx (vq), vq->avail->idx,
+ vhost_user_used_event_idx (vq), vq->used->idx);
- vhost_user_show_fds (vm, vui, q);
+ vhost_user_show_fds (vm, vq);
if (show_descr)
{
vlib_cli_output (vm,
" ===== ================== ===== ====== ===== "
"==================\n");
- for (j = 0; j < vui->vrings[q].qsz_mask + 1; j++)
+ for (j = 0; j < vq->qsz_mask + 1; j++)
{
- desc_table = vui->vrings[q].desc;
+ desc_table = vq->desc;
vlib_cli_output (vm, "%U", format_vhost_user_desc,
" %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n", vui,
desc_table, j, &mem_hint);
}
static u8 *
-format_vhost_user_vring_packed (u8 * s, va_list * args)
+format_vhost_user_event_idx_flags (u8 * s, va_list * args)
{
- char *fmt = va_arg (*args, char *);
- vhost_user_intf_t *vui = va_arg (*args, vhost_user_intf_t *);
- int q = va_arg (*args, int);
-
- s = format (s, fmt, vui->vrings[q].avail_event->flags,
- vui->vrings[q].avail_event->off_wrap,
- vui->vrings[q].used_event->flags,
- vui->vrings[q].used_event->off_wrap,
- vui->vrings[q].avail_wrap_counter,
- vui->vrings[q].used_wrap_counter);
+ u32 flags = va_arg (*args, u32);
+ typedef struct
+ {
+ u8 value;
+ char *str;
+ } event_idx_flags;
+ static event_idx_flags event_idx_array[] = {
+#define _(s,v) { .str = #s, .value = v, },
+ foreach_virtio_event_idx_flags
+#undef _
+ };
+ u32 num_entries = sizeof (event_idx_array) / sizeof (event_idx_flags);
+
+ if (flags < num_entries)
+ s = format (s, "%s", event_idx_array[flags].str);
+ else
+ s = format (s, "%u", flags);
return s;
}
u32 idx;
u32 n_entries;
vring_packed_desc_t *desc_table;
+ vhost_user_vring_t *vq = &vui->vrings[q];
+ u16 off_wrap, event_idx;
+
+ off_wrap = vq->avail_event->off_wrap;
+ event_idx = off_wrap & 0x7fff;
+ vlib_cli_output (vm, " avail_event.flags %U avail_event.off_wrap %u "
+ "avail event idx %u\n", format_vhost_user_event_idx_flags,
+ (u32) vq->avail_event->flags, off_wrap, event_idx);
+
+ off_wrap = vq->used_event->off_wrap;
+ event_idx = off_wrap & 0x7fff;
+ vlib_cli_output (vm, " used_event.flags %U used_event.off_wrap %u "
+ "used event idx %u\n", format_vhost_user_event_idx_flags,
+ (u32) vq->used_event->flags, off_wrap, event_idx);
- if (vui->vrings[q].avail_event && vui->vrings[q].used_event)
- vlib_cli_output (vm, "%U", format_vhost_user_vring_packed,
- " avail_event.flags %x avail_event.off_wrap %u "
- "used_event.flags %x used_event.off_wrap %u\n"
- " avail wrap counter %u, used wrap counter %u\n",
- vui, q);
+ vlib_cli_output (vm, " avail wrap counter %u, used wrap counter %u\n",
+ vq->avail_wrap_counter, vq->used_wrap_counter);
- vhost_user_show_fds (vm, vui, q);
+ vhost_user_show_fds (vm, vq);
if (show_descr)
{
vlib_cli_output (vm,
" ===== ================== ===== ====== ===== "
"==================\n");
- for (j = 0; j < vui->vrings[q].qsz_mask + 1; j++)
+ for (j = 0; j < vq->qsz_mask + 1; j++)
{
- desc_table = vui->vrings[q].packed_desc;
+ desc_table = vq->packed_desc;
vlib_cli_output (vm, "%U", format_vhost_user_packed_desc,
" %-5u 0x%016lx %-5u 0x%04x %-5u 0x%016lx\n", vui,
desc_table, j, &mem_hint);
}
if (vec_len (hw_if_indices) == 0)
{
- pool_foreach (vui, vum->vhost_user_interfaces,
- vec_add1 (hw_if_indices, vui->hw_if_index);
- );
+ pool_foreach (vui, vum->vhost_user_interfaces)
+ vec_add1 (hw_if_indices, vui->hw_if_index);
}
vlib_cli_output (vm, "Virtio vhost-user interfaces");
vlib_cli_output (vm, "Global:\n coalesce frames %d time %e",
vlib_cli_output (vm, "Interface: %U (ifindex %d)",
format_vnet_hw_if_index_name, vnm, hw_if_indices[i],
hw_if_indices[i]);
+ vlib_cli_output (vm, " Number of qids %u", vui->num_qid);
if (vui->enable_gso)
vlib_cli_output (vm, " GSO enable");
if (vui->enable_packed)
vlib_cli_output (vm, " Packed ring enable");
+ if (vui->enable_event_idx)
+ vlib_cli_output (vm, " Event index enable");
vlib_cli_output (vm, "virtio_net_hdr_sz %d\n"
" features mask (0x%llx): \n"
vlib_cli_output (vm, " rx placement: ");
- for (qid = 1; qid < VHOST_VRING_MAX_N / 2; qid += 2)
+ for (qid = 1; qid < vui->num_qid / 2; qid += 2)
{
vnet_main_t *vnm = vnet_get_main ();
uword thread_index;
- vnet_hw_if_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_if_rx_mode, mode);
+ vnet_hw_if_get_rx_queue_thread_index (vnm, txvq->queue_index);
+ vlib_cli_output (vm, " thread %d on vring %d, %U\n", thread_index,
+ qid, format_vnet_hw_if_rx_mode, txvq->mode);
}
vlib_cli_output (vm, " tx placement: %s\n",
vui->regions[j].mmap_offset,
pointer_to_uword (vui->region_mmap_addr[j]));
}
- for (q = 0; q < VHOST_VRING_MAX_N; q++)
+ for (q = 0; q < vui->num_qid; q++)
{
if (!vui->vrings[q].started)
continue;
vui->vrings[q].enabled ? "" : " disabled");
vlib_cli_output (vm,
- " qsz %d last_avail_idx %d last_used_idx %d\n",
+ " qsz %d last_avail_idx %d last_used_idx %d"
+ " last_kick %u\n",
vui->vrings[q].qsz_mask + 1,
vui->vrings[q].last_avail_idx,
- vui->vrings[q].last_used_idx);
+ vui->vrings[q].last_used_idx,
+ vui->vrings[q].last_kick);
if (vhost_user_is_packed_ring_supported (vui))
vhost_user_show_desc_packed (vm, vui, q, show_descr,
.path = "create vhost-user",
.short_help = "create vhost-user socket <socket-filename> [server] "
"[feature-mask <hex>] [hwaddr <mac-addr>] [renumber <dev_instance>] [gso] "
- "[packed]",
+ "[packed] [event-idx]",
.function = vhost_user_connect_command_fn,
.is_mp_safe = 1,
};
if (vum->dont_dump_vhost_user_memory)
{
- pool_foreach (vui, vum->vhost_user_interfaces,
- unmap_all_mem_regions (vui);
- );
+ pool_foreach (vui, vum->vhost_user_interfaces)
+ unmap_all_mem_regions (vui);
}
}