diff options
Diffstat (limited to 'src/vnet/devices/netmap/device.c')
| -rw-r--r-- | src/vnet/devices/netmap/device.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/src/vnet/devices/netmap/device.c b/src/vnet/devices/netmap/device.c deleted file mode 100644 index 47407aaaa26..00000000000 --- a/src/vnet/devices/netmap/device.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2016 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#include <stdint.h> -#include <net/if.h> -#include <sys/ioctl.h> - -#include <vlib/vlib.h> -#include <vlib/unix/unix.h> -#include <vnet/ethernet/ethernet.h> - -#include <vnet/devices/netmap/net_netmap.h> -#include <vnet/devices/netmap/netmap.h> - -#define foreach_netmap_tx_func_error \ -_(NO_FREE_SLOTS, "no free tx slots") \ -_(PENDING_MSGS, "pending msgs in tx ring") - -typedef enum -{ -#define _(f,s) NETMAP_TX_ERROR_##f, - foreach_netmap_tx_func_error -#undef _ - NETMAP_TX_N_ERROR, -} netmap_tx_func_error_t; - -static char *netmap_tx_func_error_strings[] = { -#define _(n,s) s, - foreach_netmap_tx_func_error -#undef _ -}; - - -static u8 * -format_netmap_device_name (u8 * s, va_list * args) -{ - u32 i = va_arg (*args, u32); - netmap_main_t *apm = &netmap_main; - netmap_if_t *nif = pool_elt_at_index (apm->interfaces, i); - - s = format (s, "netmap-%s", nif->host_if_name); - return s; -} - -static u8 * -format_netmap_device (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - int verbose = va_arg (*args, int); - netmap_main_t *nm = &netmap_main; - netmap_if_t *nif = vec_elt_at_index (nm->interfaces, dev_instance); - u32 indent = format_get_indent (s); - - s = format (s, "NETMAP interface"); - if (verbose) - { - s = format (s, "\n%U version %d flags 0x%x" - "\n%U region %u memsize 0x%x offset 0x%x" - "\n%U tx_slots %u rx_slots %u tx_rings %u rx_rings %u", - format_white_space, indent + 2, - nif->req->nr_version, - nif->req->nr_flags, - format_white_space, indent + 2, - nif->mem_region, - nif->req->nr_memsize, - nif->req->nr_offset, - format_white_space, indent + 2, - nif->req->nr_tx_slots, - nif->req->nr_rx_slots, - nif->req->nr_tx_rings, nif->req->nr_rx_rings); - } - return s; -} - -static u8 * -format_netmap_tx_trace (u8 * s, va_list * args) -{ - s = format (s, "Unimplemented..."); - return s; -} - -VNET_DEVICE_CLASS_TX_FN (netmap_device_class) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - netmap_main_t *nm = &netmap_main; - u32 *buffers = vlib_frame_vector_args (frame); - u32 n_left = frame->n_vectors; - f64 const time_constant = 1e3; - vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; - netmap_if_t *nif = pool_elt_at_index (nm->interfaces, rd->dev_instance); - int cur_ring; - - clib_spinlock_lock_if_init (&nif->lockp); - - cur_ring = nif->first_tx_ring; - - while (n_left && cur_ring <= nif->last_tx_ring) - { - struct netmap_ring *ring = NETMAP_TXRING (nif->nifp, cur_ring); - int n_free_slots = nm_ring_space (ring); - uint cur = ring->cur; - - if (nm_tx_pending (ring)) - { - if (ioctl (nif->fd, NIOCTXSYNC, NULL) < 0) - clib_unix_warning ("NIOCTXSYNC"); - clib_cpu_time_wait (time_constant); - - if (nm_tx_pending (ring) && !n_free_slots) - { - cur_ring++; - continue; - } - } - - while (n_left && n_free_slots) - { - vlib_buffer_t *b0 = 0; - u32 bi = buffers[0]; - u32 len; - u32 offset = 0; - buffers++; - - struct netmap_slot *slot = &ring->slot[cur]; - - do - { - b0 = vlib_get_buffer (vm, bi); - len = b0->current_length; - /* memcpy */ - clib_memcpy_fast ((u8 *) NETMAP_BUF (ring, slot->buf_idx) + - offset, vlib_buffer_get_current (b0), len); - offset += len; - } - while ((bi = b0->next_buffer)); - - slot->len = offset; - cur = (cur + 1) % ring->num_slots; - n_free_slots--; - n_left--; - } - CLIB_MEMORY_BARRIER (); - ring->head = ring->cur = cur; - } - - if (n_left < frame->n_vectors) - ioctl (nif->fd, NIOCTXSYNC, NULL); - - clib_spinlock_unlock_if_init (&nif->lockp); - - if (n_left) - vlib_error_count (vm, node->node_index, - (n_left == - frame->n_vectors ? NETMAP_TX_ERROR_PENDING_MSGS : - NETMAP_TX_ERROR_NO_FREE_SLOTS), n_left); - - vlib_buffer_free (vm, vlib_frame_vector_args (frame), frame->n_vectors); - return frame->n_vectors; -} - -static void -netmap_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, - u32 node_index) -{ - netmap_main_t *apm = &netmap_main; - vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); - netmap_if_t *nif = pool_elt_at_index (apm->interfaces, hw->dev_instance); - - /* Shut off redirection */ - if (node_index == ~0) - { - nif->per_interface_next_index = node_index; - return; - } - - nif->per_interface_next_index = - vlib_node_add_next (vlib_get_main (), netmap_input_node.index, - node_index); -} - -static void -netmap_clear_hw_interface_counters (u32 instance) -{ - /* Nothing for now */ -} - -static clib_error_t * -netmap_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) -{ - netmap_main_t *apm = &netmap_main; - vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); - netmap_if_t *nif = pool_elt_at_index (apm->interfaces, hw->dev_instance); - u32 hw_flags; - - nif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; - - if (nif->is_admin_up) - hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP; - else - hw_flags = 0; - - vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); - - return 0; -} - -static clib_error_t * -netmap_subif_add_del_function (vnet_main_t * vnm, - u32 hw_if_index, - struct vnet_sw_interface_t *st, int is_add) -{ - /* Nothing for now */ - return 0; -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (netmap_device_class) = { - .name = "netmap", - .format_device_name = format_netmap_device_name, - .format_device = format_netmap_device, - .format_tx_trace = format_netmap_tx_trace, - .tx_function_n_errors = NETMAP_TX_N_ERROR, - .tx_function_error_strings = netmap_tx_func_error_strings, - .rx_redirect_to_node = netmap_set_interface_next_node, - .clear_counters = netmap_clear_hw_interface_counters, - .admin_up_down_function = netmap_interface_admin_up_down, - .subif_add_del_function = netmap_subif_add_del_function, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |