diff options
Diffstat (limited to 'src/vnet/devices/virtio')
| -rw-r--r-- | src/vnet/devices/virtio/device.c | 13 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/node.c | 14 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/pci.c | 347 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/virtio.c | 140 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/virtio.h | 22 | ||||
| -rw-r--r-- | src/vnet/devices/virtio/virtio_api.c | 6 |
6 files changed, 466 insertions, 76 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c index dbf560688b8..04cf9ec49c8 100644 --- a/src/vnet/devices/virtio/device.c +++ b/src/vnet/devices/virtio/device.c @@ -245,15 +245,16 @@ virtio_interface_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, virtio_if_t * vif, int do_gso) { - u8 qid = 0; u16 n_left = frame->n_vectors; - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, (qid << 1) + 1); + virtio_vring_t *vring; + u16 qid = vm->thread_index % vif->num_txqs; + vring = vec_elt_at_index (vif->txq_vrings, qid); u16 used, next, avail; u16 sz = vring->size; u16 mask = sz - 1; u32 *buffers = vlib_frame_vector_args (frame); - clib_spinlock_lock_if_init (&vif->lockp); + clib_spinlock_lock_if_init (&vring->lockp); if ((vring->used->flags & VIRTIO_RING_FLAG_MASK_INT) == 0 && (vring->last_kick_avail_idx != vring->avail->idx)) @@ -298,7 +299,7 @@ virtio_interface_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_free (vm, buffers, n_left); } - clib_spinlock_unlock_if_init (&vif->lockp); + clib_spinlock_unlock_if_init (&vring->lockp); return frame->n_vectors - n_left; } @@ -310,8 +311,8 @@ VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm, virtio_main_t *nm = &virtio_main; vnet_interface_output_runtime_t *rund = (void *) node->runtime_data; virtio_if_t *vif = pool_elt_at_index (nm->interfaces, rund->dev_instance); - vnet_main_t *vnm = vnet_get_main (); + if (vnm->interface_main.gso_interface_count > 0) return virtio_interface_tx_inline (vm, node, frame, vif, 1 /* do_gso */ ); else @@ -352,7 +353,7 @@ virtio_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid, virtio_main_t *mm = &virtio_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); virtio_if_t *vif = pool_elt_at_index (mm->interfaces, hw->dev_instance); - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, qid); + virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid); if (vif->type == VIRTIO_IF_TYPE_PCI && !(vif->support_int_mode)) { diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c index b2f8d04861e..686d90c3d00 100644 --- a/src/vnet/devices/virtio/node.c +++ b/src/vnet/devices/virtio/node.c @@ -225,7 +225,7 @@ virtio_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vnet_main_t *vnm = vnet_get_main (); u32 thread_index = vm->thread_index; uword n_trace = vlib_get_trace_count (vm, node); - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, 0); + virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid); u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; const int hdr_sz = vif->virtio_net_hdr_sz; u32 *to_next = 0; @@ -364,15 +364,15 @@ VLIB_NODE_FN (virtio_input_node) (vlib_main_t * vm, foreach_device_and_queue (dq, rt->devices_and_queues) { - virtio_if_t *mif; - mif = vec_elt_at_index (nm->interfaces, dq->dev_instance); - if (mif->flags & VIRTIO_IF_FLAG_ADMIN_UP) + virtio_if_t *vif; + vif = vec_elt_at_index (nm->interfaces, dq->dev_instance); + if (vif->flags & VIRTIO_IF_FLAG_ADMIN_UP) { - if (mif->gso_enabled) - n_rx += virtio_device_input_inline (vm, node, frame, mif, + if (vif->gso_enabled) + n_rx += virtio_device_input_inline (vm, node, frame, vif, dq->queue_id, 1); else - n_rx += virtio_device_input_inline (vm, node, frame, mif, + n_rx += virtio_device_input_inline (vm, node, frame, vif, dq->queue_id, 0); } } diff --git a/src/vnet/devices/virtio/pci.c b/src/vnet/devices/virtio/pci.c index 020b088d346..dd2e1dad507 100644 --- a/src/vnet/devices/virtio/pci.c +++ b/src/vnet/devices/virtio/pci.c @@ -272,7 +272,7 @@ virtio_pci_set_mac (vlib_main_t * vm, virtio_if_t * vif) static u32 virtio_pci_get_mac (vlib_main_t * vm, virtio_if_t * vif) { - if (vif->remote_features & VIRTIO_FEATURE (VIRTIO_NET_F_MAC)) + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MAC)) { virtio_pci_legacy_read_config (vm, vif, vif->mac_addr, sizeof (vif->mac_addr), 0); @@ -288,7 +288,7 @@ virtio_pci_is_link_up (vlib_main_t * vm, virtio_if_t * vif) * Minimal driver: assumes link is up */ u16 status = 1; - if (vif->remote_features & VIRTIO_FEATURE (VIRTIO_NET_F_STATUS)) + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_STATUS)) virtio_pci_legacy_read_config (vm, vif, &status, sizeof (status), /* mac */ 6); return status; @@ -444,6 +444,118 @@ debug_device_config_space (vlib_main_t * vm, virtio_if_t * vif) } } +struct virtio_ctrl_mq_status_hdr +{ + struct virtio_net_ctrl_hdr ctrl; + struct virtio_net_ctrl_mq num_mqs; + virtio_net_ctrl_ack status; +}; + +static int +virtio_pci_enable_multiqueue (vlib_main_t * vm, virtio_if_t * vif, + u16 num_queues) +{ + virtio_main_t *vim = &virtio_main; + virtio_vring_t *vring = vif->cxq_vring; + u32 buffer_index; + vlib_buffer_t *b; + u16 used, next, avail; + u16 sz = vring->size; + u16 mask = sz - 1; + struct virtio_ctrl_mq_status_hdr mq_hdr, result; + virtio_net_ctrl_ack status = VIRTIO_NET_ERR; + + mq_hdr.ctrl.class = VIRTIO_NET_CTRL_MQ; + mq_hdr.ctrl.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET; + mq_hdr.status = VIRTIO_NET_ERR; + mq_hdr.num_mqs.virtqueue_pairs = num_queues; + + used = vring->desc_in_use; + next = vring->desc_next; + avail = vring->avail->idx; + struct vring_desc *d = &vring->desc[next]; + + if (vlib_buffer_alloc (vm, &buffer_index, 1)) + b = vlib_get_buffer (vm, buffer_index); + else + return VIRTIO_NET_ERR; + /* + * current_data may not be initialized with 0 and may contain + * previous offset. + */ + b->current_data = 0; + clib_memcpy (vlib_buffer_get_current (b), &mq_hdr, + sizeof (struct virtio_ctrl_mq_status_hdr)); + d->flags = VRING_DESC_F_NEXT; + d->addr = vlib_buffer_get_current_pa (vm, b); + d->len = sizeof (struct virtio_net_ctrl_hdr); + vring->avail->ring[avail & mask] = next; + avail++; + next = (next + 1) & mask; + d->next = next; + used++; + + d = &vring->desc[next]; + d->flags = VRING_DESC_F_NEXT; + d->addr = vlib_buffer_get_current_pa (vm, b) + + STRUCT_OFFSET_OF (struct virtio_ctrl_mq_status_hdr, num_mqs); + d->len = sizeof (struct virtio_net_ctrl_mq); + next = (next + 1) & mask; + d->next = next; + used++; + + d = &vring->desc[next]; + d->flags = VRING_DESC_F_WRITE; + d->addr = vlib_buffer_get_current_pa (vm, b) + + STRUCT_OFFSET_OF (struct virtio_ctrl_mq_status_hdr, status); + d->len = sizeof (mq_hdr.status); + next = (next + 1) & mask; + used++; + + CLIB_MEMORY_STORE_BARRIER (); + vring->avail->idx = avail; + vring->desc_next = next; + vring->desc_in_use = used; + + if ((vring->used->flags & VIRTIO_RING_FLAG_MASK_INT) == 0) + { + virtio_kick (vm, vring, vif); + } + + clib_memset (&result, 0, sizeof (result)); + u16 last = vring->last_used_idx, n_left = 0; + n_left = vring->used->idx - last; + + while (n_left) + { + struct vring_used_elem *e = &vring->used->ring[last & mask]; + u16 slot = e->id; + + d = &vring->desc[slot]; + while (d->flags & VRING_DESC_F_NEXT) + { + used--; + slot = d->next; + d = &vring->desc[slot]; + } + used--; + last++; + n_left--; + } + vring->desc_in_use = used; + vring->last_used_idx = last; + + CLIB_MEMORY_BARRIER (); + clib_memcpy (&result, vlib_buffer_get_current (b), + sizeof (struct virtio_ctrl_mq_status_hdr)); + + virtio_log_debug (vim, vif, "multi-queue enable status on Ctrl queue : %u", + result.status); + status = result.status; + vlib_buffer_free (vm, &buffer_index, 1); + return status; +} + static u8 virtio_pci_queue_size_valid (u16 qsz) { @@ -455,16 +567,18 @@ virtio_pci_queue_size_valid (u16 qsz) } clib_error_t * -virtio_pci_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx) +virtio_pci_control_vring_init (vlib_main_t * vm, virtio_if_t * vif, + u16 queue_num) { clib_error_t *error = 0; + virtio_main_t *vim = &virtio_main; u16 queue_size = 0; virtio_vring_t *vring; struct vring vr; u32 i = 0; - void *ptr; + void *ptr = NULL; - queue_size = virtio_pci_legacy_get_queue_num (vm, vif, idx); + queue_size = virtio_pci_legacy_get_queue_num (vm, vif, queue_num); if (!virtio_pci_queue_size_valid (queue_size)) clib_warning ("queue size is not valid"); @@ -477,18 +591,87 @@ virtio_pci_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx) if (queue_size == 0) queue_size = 256; - vec_validate_aligned (vif->vrings, idx, CLIB_CACHE_LINE_BYTES); - vring = vec_elt_at_index (vif->vrings, idx); + vec_validate_aligned (vif->cxq_vring, 0, CLIB_CACHE_LINE_BYTES); + vring = vec_elt_at_index (vif->cxq_vring, 0); + i = vring_size (queue_size, VIRTIO_PCI_VRING_ALIGN); + i = round_pow2 (i, VIRTIO_PCI_VRING_ALIGN); + ptr = + vlib_physmem_alloc_aligned_on_numa (vm, i, VIRTIO_PCI_VRING_ALIGN, + vif->numa_node); + if (!ptr) + return vlib_physmem_last_error (vm); + clib_memset (ptr, 0, i); + vring_init (&vr, queue_size, ptr, VIRTIO_PCI_VRING_ALIGN); + vring->desc = vr.desc; + vring->avail = vr.avail; + vring->used = vr.used; + vring->queue_id = queue_num; + vring->avail->flags = VIRTIO_RING_FLAG_MASK_INT; + + ASSERT (vring->buffers == 0); + + vring->size = queue_size; + virtio_log_debug (vim, vif, "control-queue: number %u, size %u", queue_num, + queue_size); + virtio_pci_legacy_setup_queue (vm, vif, queue_num, ptr); + vring->kick_fd = -1; + + return error; +} + +clib_error_t * +virtio_pci_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 queue_num) +{ + clib_error_t *error = 0; + virtio_main_t *vim = &virtio_main; + vlib_thread_main_t *vtm = vlib_get_thread_main (); + u16 queue_size = 0; + virtio_vring_t *vring; + struct vring vr; + u32 i = 0; + void *ptr = NULL; + + queue_size = virtio_pci_legacy_get_queue_num (vm, vif, queue_num); + if (!virtio_pci_queue_size_valid (queue_size)) + clib_warning ("queue size is not valid"); + + if (!is_pow2 (queue_size)) + return clib_error_return (0, "ring size must be power of 2"); + + if (queue_size > 32768) + return clib_error_return (0, "ring size must be 32768 or lower"); + + if (queue_size == 0) + queue_size = 256; + if (queue_num % 2) + { + if (TX_QUEUE_ACCESS (queue_num) > vtm->n_vlib_mains) + return error; + vec_validate_aligned (vif->txq_vrings, TX_QUEUE_ACCESS (queue_num), + CLIB_CACHE_LINE_BYTES); + vring = vec_elt_at_index (vif->txq_vrings, TX_QUEUE_ACCESS (queue_num)); + clib_spinlock_init (&vring->lockp); + } + else + { + vec_validate_aligned (vif->rxq_vrings, RX_QUEUE_ACCESS (queue_num), + CLIB_CACHE_LINE_BYTES); + vring = vec_elt_at_index (vif->rxq_vrings, RX_QUEUE_ACCESS (queue_num)); + } i = vring_size (queue_size, VIRTIO_PCI_VRING_ALIGN); i = round_pow2 (i, VIRTIO_PCI_VRING_ALIGN); - ptr = vlib_physmem_alloc_aligned (vm, i, VIRTIO_PCI_VRING_ALIGN); - memset (ptr, 0, i); + ptr = + vlib_physmem_alloc_aligned_on_numa (vm, i, VIRTIO_PCI_VRING_ALIGN, + vif->numa_node); + if (!ptr) + return vlib_physmem_last_error (vm); + clib_memset (ptr, 0, i); vring_init (&vr, queue_size, ptr, VIRTIO_PCI_VRING_ALIGN); vring->desc = vr.desc; vring->avail = vr.avail; vring->used = vr.used; - vring->queue_id = idx; + vring->queue_id = queue_num; vring->avail->flags = VIRTIO_RING_FLAG_MASK_INT; ASSERT (vring->buffers == 0); @@ -496,7 +679,7 @@ virtio_pci_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx) ASSERT (vring->indirect_buffers == 0); vec_validate_aligned (vring->indirect_buffers, queue_size, CLIB_CACHE_LINE_BYTES); - if (idx % 2) + if (queue_num % 2) { u32 n_alloc = 0; do @@ -507,13 +690,18 @@ virtio_pci_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx) queue_size - n_alloc); } while (n_alloc != queue_size); - vif->tx_ring_sz = queue_size; + vif->num_txqs++; + virtio_log_debug (vim, vif, "tx-queue: number %u, size %u", queue_num, + queue_size); } else - vif->rx_ring_sz = queue_size; + { + vif->num_rxqs++; + virtio_log_debug (vim, vif, "rx-queue: number %u, size %u", queue_num, + queue_size); + } vring->size = queue_size; - - virtio_pci_legacy_setup_queue (vm, vif, idx, ptr); + virtio_pci_legacy_setup_queue (vm, vif, queue_num, ptr); vring->kick_fd = -1; return error; @@ -531,6 +719,8 @@ virtio_negotiate_features (vlib_main_t * vm, virtio_if_t * vif, | VIRTIO_FEATURE (VIRTIO_NET_F_MAC) | VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF) | VIRTIO_FEATURE (VIRTIO_NET_F_STATUS) + | VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ) + | VIRTIO_FEATURE (VIRTIO_NET_F_MQ) | VIRTIO_FEATURE (VIRTIO_F_NOTIFY_ON_EMPTY) | VIRTIO_FEATURE (VIRTIO_F_ANY_LAYOUT) | VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC); @@ -542,8 +732,7 @@ virtio_negotiate_features (vlib_main_t * vm, virtio_if_t * vif, vif->features = req_features & vif->remote_features & supported_features; - if (vif-> - remote_features & vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MTU)) + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MTU)) { virtio_net_config_t config; virtio_pci_legacy_read_config (vm, vif, &config.mtu, @@ -702,7 +891,7 @@ virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif, u8 status = 0; if ((error = virtio_pci_read_caps (vm, vif))) - clib_error_return (error, "Device not supported"); + clib_error_return (error, "Device is not supported"); if (virtio_pci_reset_device (vm, vif) < 0) { @@ -728,6 +917,9 @@ virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif, } vif->status = status; + /* + * get or set the mac address + */ if (virtio_pci_get_mac (vm, vif)) { f64 now = vlib_time_now (vm); @@ -743,15 +935,44 @@ virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif, virtio_set_net_hdr_size (vif); + /* + * Initialize the virtqueues + */ if ((error = virtio_pci_get_max_virtqueue_pairs (vm, vif))) goto error; - if ((error = virtio_pci_vring_init (vm, vif, 0))) - goto error; + for (int i = 0; i < vif->max_queue_pairs; i++) + { + if ((error = virtio_pci_vring_init (vm, vif, RX_QUEUE (i)))) + virtio_log_warning (vim, vif, "%s (%u) %s", "error in rxq-queue", + RX_QUEUE (i), "initialization"); - if ((error = virtio_pci_vring_init (vm, vif, 1))) - goto error; + if ((error = virtio_pci_vring_init (vm, vif, TX_QUEUE (i)))) + virtio_log_warning (vim, vif, "%s (%u) %s", "error in txq-queue", + TX_QUEUE (i), "initialization"); + } + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) + { + if ((error = + virtio_pci_control_vring_init (vm, vif, vif->max_queue_pairs * 2))) + { + virtio_log_warning (vim, vif, "%s (%u) %s", + "error in control-queue", + vif->max_queue_pairs * 2, "initialization"); + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MQ)) + vif->features &= ~VIRTIO_FEATURE (VIRTIO_NET_F_MQ); + } + } + else + { + virtio_log_debug (vim, vif, "control queue is not available"); + vif->cxq_vring = NULL; + } + + /* + * set the msix interrupts + */ if (vif->msix_enabled == VIRTIO_MSIX_ENABLED) { if (virtio_pci_legacy_set_config_irq (vm, vif, 1) == @@ -761,6 +982,10 @@ virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif, VIRTIO_MSI_NO_VECTOR) virtio_log_warning (vim, vif, "queue vector 0 is not set"); } + + /* + * set the driver status OK + */ virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_DRIVER_OK); vif->status = virtio_pci_legacy_get_status (vm, vif); error: @@ -831,6 +1056,7 @@ virtio_pci_create_if (vlib_main_t * vm, virtio_pci_create_if_args_t * args) } vif->pci_dev_handle = h; vlib_pci_set_private_data (vm, h, vif->dev_instance); + vif->numa_node = vlib_pci_get_numa_node (vm, h); if ((error = vlib_pci_bus_master_enable (vm, h))) { @@ -931,11 +1157,15 @@ virtio_pci_create_if (vlib_main_t * vm, virtio_pci_create_if_args_t * args) hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE; vnet_hw_interface_set_input_node (vnm, vif->hw_if_index, virtio_input_node.index); - vnet_hw_interface_assign_rx_thread (vnm, vif->hw_if_index, 0, ~0); - virtio_vring_set_numa_node (vm, vif, 0); - - vnet_hw_interface_set_rx_mode (vnm, vif->hw_if_index, 0, - VNET_HW_INTERFACE_RX_MODE_POLLING); + u32 i = 0; + vec_foreach_index (i, vif->rxq_vrings) + { + vnet_hw_interface_assign_rx_thread (vnm, vif->hw_if_index, i, ~0); + virtio_vring_set_numa_node (vm, vif, RX_QUEUE (i)); + /* Set default rx mode to POLLING */ + vnet_hw_interface_set_rx_mode (vnm, vif->hw_if_index, i, + VNET_HW_INTERFACE_RX_MODE_POLLING); + } if (virtio_pci_is_link_up (vm, vif) & VIRTIO_NET_S_LINK_UP) { vif->flags |= VIRTIO_IF_FLAG_ADMIN_UP; @@ -944,6 +1174,13 @@ virtio_pci_create_if (vlib_main_t * vm, virtio_pci_create_if_args_t * args) } else vnet_hw_interface_set_flags (vnm, vif->hw_if_index, 0); + + if ((vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) && + (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MQ))) + { + if (virtio_pci_enable_multiqueue (vm, vif, vif->max_queue_pairs)) + virtio_log_warning (vim, vif, "multiqueue is not set"); + } return; error: @@ -964,31 +1201,51 @@ virtio_pci_delete_if (vlib_main_t * vm, virtio_if_t * vif) vlib_pci_intr_disable (vm, vif->pci_dev_handle); - virtio_pci_legacy_del_queue (vm, vif, 0); - virtio_pci_legacy_del_queue (vm, vif, 1); + for (i = 0; i < vif->max_queue_pairs; i++) + { + virtio_pci_legacy_del_queue (vm, vif, RX_QUEUE (i)); + virtio_pci_legacy_del_queue (vm, vif, TX_QUEUE (i)); + } + + if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) + virtio_pci_legacy_del_queue (vm, vif, vif->max_queue_pairs * 2); virtio_pci_legacy_reset (vm, vif); if (vif->hw_if_index) { vnet_hw_interface_set_flags (vnm, vif->hw_if_index, 0); - vnet_hw_interface_unassign_rx_thread (vnm, vif->hw_if_index, 0); + vec_foreach_index (i, vif->rxq_vrings) + { + vnet_hw_interface_unassign_rx_thread (vnm, vif->hw_if_index, i); + } ethernet_delete_interface (vnm, vif->hw_if_index); } vlib_pci_device_close (vm, vif->pci_dev_handle); - vec_foreach_index (i, vif->vrings) + vec_foreach_index (i, vif->rxq_vrings) { - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, i); + virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, i); if (vring->kick_fd != -1) close (vring->kick_fd); if (vring->used) { - if ((i & 1) == 1) - virtio_free_used_desc (vm, vring); - else - virtio_free_rx_buffers (vm, vring); + virtio_free_rx_buffers (vm, vring); + } + vec_free (vring->buffers); + vec_free (vring->indirect_buffers); + vlib_physmem_free (vm, vring->desc); + } + + vec_foreach_index (i, vif->txq_vrings) + { + virtio_vring_t *vring = vec_elt_at_index (vif->txq_vrings, i); + if (vring->kick_fd != -1) + close (vring->kick_fd); + if (vring->used) + { + virtio_free_used_desc (vm, vring); } if (vring->queue_id % 2) { @@ -999,7 +1256,23 @@ virtio_pci_delete_if (vlib_main_t * vm, virtio_if_t * vif) vlib_physmem_free (vm, vring->desc); } - vec_free (vif->vrings); + if (vif->cxq_vring != NULL) + { + u16 last = vif->cxq_vring->last_used_idx; + u16 n_left = vif->cxq_vring->used->idx - last; + while (n_left) + { + last++; + n_left--; + } + + vif->cxq_vring->last_used_idx = last; + vlib_physmem_free (vm, vif->cxq_vring->desc); + } + + vec_free (vif->rxq_vrings); + vec_free (vif->txq_vrings); + vec_free (vif->cxq_vring); if (vif->fd != -1) vif->fd = -1; diff --git a/src/vnet/devices/virtio/virtio.c b/src/vnet/devices/virtio/virtio.c index 2648f29af84..72499b63731 100644 --- a/src/vnet/devices/virtio/virtio.c +++ b/src/vnet/devices/virtio/virtio.c @@ -81,9 +81,18 @@ virtio_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx, u16 sz) if (sz == 0) sz = 256; - vec_validate_aligned (vif->vrings, idx, CLIB_CACHE_LINE_BYTES); - vring = vec_elt_at_index (vif->vrings, idx); - + if (idx % 2) + { + vec_validate_aligned (vif->txq_vrings, TX_QUEUE_ACCESS (idx), + CLIB_CACHE_LINE_BYTES); + vring = vec_elt_at_index (vif->txq_vrings, TX_QUEUE_ACCESS (idx)); + } + else + { + vec_validate_aligned (vif->rxq_vrings, RX_QUEUE_ACCESS (idx), + CLIB_CACHE_LINE_BYTES); + vring = vec_elt_at_index (vif->rxq_vrings, RX_QUEUE_ACCESS (idx)); + } i = sizeof (struct vring_desc) * sz; i = round_pow2 (i, CLIB_CACHE_LINE_BYTES); vring->desc = clib_mem_alloc_aligned (i, CLIB_CACHE_LINE_BYTES); @@ -101,6 +110,7 @@ virtio_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx, u16 sz) vring->used = clib_mem_alloc_aligned (i, CLIB_CACHE_LINE_BYTES); clib_memset (vring->used, 0, i); + vring->queue_id = idx; ASSERT (vring->buffers == 0); vec_validate_aligned (vring->buffers, sz, CLIB_CACHE_LINE_BYTES); ASSERT (vring->indirect_buffers == 0); @@ -168,29 +178,47 @@ virtio_free_rx_buffers (vlib_main_t * vm, virtio_vring_t * vring) } clib_error_t * -virtio_vring_free (vlib_main_t * vm, virtio_if_t * vif, u32 idx) +virtio_vring_free_rx (vlib_main_t * vm, virtio_if_t * vif, u32 idx) { - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, idx); + virtio_vring_t *vring = + vec_elt_at_index (vif->rxq_vrings, RX_QUEUE_ACCESS (idx)); clib_file_del_by_index (&file_main, vring->call_file_index); close (vring->kick_fd); close (vring->call_fd); if (vring->used) { - if ((idx & 1) == 1) - virtio_free_used_desc (vm, vring); - else - virtio_free_rx_buffers (vm, vring); + virtio_free_rx_buffers (vm, vring); clib_mem_free (vring->used); } if (vring->desc) clib_mem_free (vring->desc); if (vring->avail) clib_mem_free (vring->avail); - if (vring->queue_id % 2) + vec_free (vring->buffers); + vec_free (vring->indirect_buffers); + return 0; +} + +clib_error_t * +virtio_vring_free_tx (vlib_main_t * vm, virtio_if_t * vif, u32 idx) +{ + virtio_vring_t *vring = + vec_elt_at_index (vif->txq_vrings, TX_QUEUE_ACCESS (idx)); + + clib_file_del_by_index (&file_main, vring->call_file_index); + close (vring->kick_fd); + close (vring->call_fd); + if (vring->used) { - vlib_buffer_free_no_next (vm, vring->indirect_buffers, vring->size); + virtio_free_used_desc (vm, vring); + clib_mem_free (vring->used); } + if (vring->desc) + clib_mem_free (vring->desc); + if (vring->avail) + clib_mem_free (vring->avail); + vlib_buffer_free_no_next (vm, vring->indirect_buffers, vring->size); vec_free (vring->buffers); vec_free (vring->indirect_buffers); return 0; @@ -201,10 +229,11 @@ virtio_vring_set_numa_node (vlib_main_t * vm, virtio_if_t * vif, u32 idx) { vnet_main_t *vnm = vnet_get_main (); u32 thread_index; - virtio_vring_t *vring = vec_elt_at_index (vif->vrings, idx); + virtio_vring_t *vring = + vec_elt_at_index (vif->rxq_vrings, RX_QUEUE_ACCESS (idx)); thread_index = vnet_get_device_input_thread_index (vnm, vif->hw_if_index, - vring->queue_id); + RX_QUEUE_ACCESS (idx)); vring->buffer_pool_index = vlib_buffer_pool_get_default_for_numa (vm, vlib_mains @@ -313,11 +342,15 @@ virtio_show (vlib_main_t * vm, u32 * hw_if_indices, u8 show_descr, u32 type) feat_entry->bit); feat_entry++; } - vec_foreach_index (i, vif->vrings) + vlib_cli_output (vm, " Number of RX Virtqueue %u", vif->num_rxqs); + vlib_cli_output (vm, " Number of TX Virtqueue %u", vif->num_txqs); + if (vif->cxq_vring != NULL + && vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) + vlib_cli_output (vm, " Number of CTRL Virtqueue 1"); + vec_foreach_index (i, vif->rxq_vrings) { - // RX = 0, TX = 1 - vring = vec_elt_at_index (vif->vrings, i); - vlib_cli_output (vm, " Virtqueue (%s)", (i & 1) ? "TX" : "RX"); + vring = vec_elt_at_index (vif->rxq_vrings, i); + vlib_cli_output (vm, " Virtqueue (RX) %d", vring->queue_id); vlib_cli_output (vm, " qsz %d, last_used_idx %d, desc_next %d, desc_in_use %d", vring->size, vring->last_used_idx, vring->desc_next, @@ -338,7 +371,6 @@ virtio_show (vlib_main_t * vm, u32 * hw_if_indices, u8 show_descr, u32 type) " id addr len flags next user_addr\n"); vlib_cli_output (vm, " ===== ================== ===== ====== ===== ==================\n"); - vring = vif->vrings; for (j = 0; j < vring->size; j++) { struct vring_desc *desc = &vring->desc[j]; @@ -350,6 +382,78 @@ virtio_show (vlib_main_t * vm, u32 * hw_if_indices, u8 show_descr, u32 type) } } } + vec_foreach_index (i, vif->txq_vrings) + { + vring = vec_elt_at_index (vif->txq_vrings, i); + vlib_cli_output (vm, " Virtqueue (TX) %d", vring->queue_id); + vlib_cli_output (vm, + " qsz %d, last_used_idx %d, desc_next %d, desc_in_use %d", + vring->size, vring->last_used_idx, vring->desc_next, + vring->desc_in_use); + vlib_cli_output (vm, + " avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d", + vring->avail->flags, vring->avail->idx, + vring->used->flags, vring->used->idx); + if (type == VIRTIO_IF_TYPE_TAP) + { + vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd, + vring->call_fd); + } + if (show_descr) + { + vlib_cli_output (vm, "\n descriptor table:\n"); + vlib_cli_output (vm, + " id addr len flags next user_addr\n"); + vlib_cli_output (vm, + " ===== ================== ===== ====== ===== ==================\n"); + for (j = 0; j < vring->size; j++) + { + struct vring_desc *desc = &vring->desc[j]; + vlib_cli_output (vm, + " %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n", + j, desc->addr, + desc->len, + desc->flags, desc->next, desc->addr); + } + } + } + if (vif->cxq_vring != NULL + && vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) + { + vring = vif->cxq_vring; + vlib_cli_output (vm, " Virtqueue (CTRL) %d", vring->queue_id); + vlib_cli_output (vm, + " qsz %d, last_used_idx %d, desc_next %d, desc_in_use %d", + vring->size, vring->last_used_idx, + vring->desc_next, vring->desc_in_use); + vlib_cli_output (vm, + " avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d", + vring->avail->flags, vring->avail->idx, + vring->used->flags, vring->used->idx); + if (type == VIRTIO_IF_TYPE_TAP) + { + vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd, + vring->call_fd); + } + if (show_descr) + { + vlib_cli_output (vm, "\n descriptor table:\n"); + vlib_cli_output (vm, + " id addr len flags next user_addr\n"); + vlib_cli_output (vm, + " ===== ================== ===== ====== ===== ==================\n"); + for (j = 0; j < vring->size; j++) + { + struct vring_desc *desc = &vring->desc[j]; + vlib_cli_output (vm, + " %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n", + j, desc->addr, + desc->len, + desc->flags, desc->next, desc->addr); + } + } + } + } } diff --git a/src/vnet/devices/virtio/virtio.h b/src/vnet/devices/virtio/virtio.h index f72819639d7..1de704386a8 100644 --- a/src/vnet/devices/virtio/virtio.h +++ b/src/vnet/devices/virtio/virtio.h @@ -75,6 +75,11 @@ typedef enum #define VIRTIO_FEATURE(X) (1ULL << X) +#define TX_QUEUE(X) ((X*2) + 1) +#define RX_QUEUE(X) (X*2) +#define TX_QUEUE_ACCESS(X) (X/2) +#define RX_QUEUE_ACCESS(X) (X/2) + typedef enum { VIRTIO_IF_TYPE_TAP, @@ -99,6 +104,7 @@ typedef struct struct vring_desc *desc; struct vring_used *used; struct vring_avail *avail; + clib_spinlock_t lockp; u16 desc_in_use; u16 desc_next; int kick_fd; @@ -135,6 +141,7 @@ typedef struct u32 dev_instance; u32 hw_if_index; u32 sw_if_index; + u32 numa_node; u16 virtio_net_hdr_sz; virtio_if_type_t type; union @@ -153,16 +160,16 @@ typedef struct int tap_fd; u32 pci_dev_handle; }; - virtio_vring_t *vrings; - + virtio_vring_t *rxq_vrings; + virtio_vring_t *txq_vrings; u64 features, remote_features; /* error */ clib_error_t *error; u8 support_int_mode; /* support interrupt mode */ u16 max_queue_pairs; - u16 tx_ring_sz; - u16 rx_ring_sz; + u16 num_rxqs; + u16 num_txqs; u8 status; u8 mac_addr[6]; u8 *host_if_name; @@ -175,6 +182,7 @@ typedef struct u8 host_ip6_prefix_len; int gso_enabled; int ifindex; + virtio_vring_t *cxq_vring; } virtio_if_t; typedef struct @@ -191,8 +199,10 @@ extern vlib_node_registration_t virtio_input_node; clib_error_t *virtio_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx, u16 sz); -clib_error_t *virtio_vring_free (vlib_main_t * vm, virtio_if_t * vif, - u32 idx); +clib_error_t *virtio_vring_free_rx (vlib_main_t * vm, virtio_if_t * vif, + u32 idx); +clib_error_t *virtio_vring_free_tx (vlib_main_t * vm, virtio_if_t * vif, + u32 idx); void virtio_vring_set_numa_node (vlib_main_t * vm, virtio_if_t * vif, u32 idx); extern void virtio_free_used_desc (vlib_main_t * vm, virtio_vring_t * vring); diff --git a/src/vnet/devices/virtio/virtio_api.c b/src/vnet/devices/virtio/virtio_api.c index 5035799befe..238c6adfb43 100644 --- a/src/vnet/devices/virtio/virtio_api.c +++ b/src/vnet/devices/virtio/virtio_api.c @@ -159,8 +159,10 @@ virtio_pci_send_sw_interface_details (vpe_api_main_t * am, mp->_vl_msg_id = htons (VL_API_SW_INTERFACE_VIRTIO_PCI_DETAILS); mp->pci_addr = htonl (vif->pci_addr.as_u32); mp->sw_if_index = htonl (vif->sw_if_index); - mp->rx_ring_sz = htons (vif->rx_ring_sz); - mp->tx_ring_sz = htons (vif->tx_ring_sz); + virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, 0); + mp->rx_ring_sz = htons (vring->size); + vring = vec_elt_at_index (vif->txq_vrings, 0); + mp->tx_ring_sz = htons (vring->size); clib_memcpy (mp->mac_addr, vif->mac_addr, 6); mp->features = clib_host_to_net_u64 (vif->features); |