diff options
Diffstat (limited to 'src/vnet/devices/virtio')
| -rw-r--r-- | src/vnet/devices/virtio/node.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c index 961127141f3..63e40da53b7 100644 --- a/src/vnet/devices/virtio/node.c +++ b/src/vnet/devices/virtio/node.c @@ -35,6 +35,7 @@ #define foreach_virtio_input_error \ + _(BUFFER_ALLOC, "buffer alloc error") \ _(UNKNOWN, "unknown") typedef enum @@ -81,9 +82,9 @@ format_virtio_input_trace (u8 * s, va_list * args) static_always_inline void virtio_refill_vring (vlib_main_t * vm, virtio_if_t * vif, virtio_if_type_t type, virtio_vring_t * vring, - const int hdr_sz) + const int hdr_sz, u32 node_index) { - u16 used, next, avail, n_slots; + u16 used, next, avail, n_slots, n_refill; u16 sz = vring->size; u16 mask = sz - 1; @@ -94,17 +95,22 @@ more: return; /* deliver free buffers in chunks of 64 */ - n_slots = clib_min (sz - used, 64); + n_refill = clib_min (sz - used, 64); next = vring->desc_next; avail = vring->avail->idx; n_slots = vlib_buffer_alloc_to_ring_from_pool (vm, vring->buffers, next, - vring->size, n_slots, + vring->size, n_refill, vring->buffer_pool_index); - if (n_slots == 0) - return; + if (PREDICT_FALSE (n_slots != n_refill)) + { + vlib_error_count (vm, node_index, + VIRTIO_INPUT_ERROR_BUFFER_ALLOC, n_refill - n_slots); + if (n_slots == 0) + return; + } while (n_slots) { @@ -413,7 +419,7 @@ virtio_device_input_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node, n_rx_bytes); refill: - virtio_refill_vring (vm, vif, type, vring, hdr_sz); + virtio_refill_vring (vm, vif, type, vring, hdr_sz, node->node_index); return n_rx_packets; } |