From 7db6ab03db874d030a2d56ff02036c0594b46ccc Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Thu, 30 Jan 2020 20:39:58 +0100 Subject: misc: deprecate netmap and ixge drivers Both are out of sync for long time... Type: refactor Change-Id: I7de3170d35330fc172501d87655dfef91998b8fe Signed-off-by: Damjan Marion --- src/vnet/devices/netmap/node.c | 298 ----------------------------------------- 1 file changed, 298 deletions(-) delete mode 100644 src/vnet/devices/netmap/node.c (limited to 'src/vnet/devices/netmap/node.c') diff --git a/src/vnet/devices/netmap/node.c b/src/vnet/devices/netmap/node.c deleted file mode 100644 index bc55ecc8eb1..00000000000 --- a/src/vnet/devices/netmap/node.c +++ /dev/null @@ -1,298 +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 -#include -#include - -#include -#include -#include -#include -#include - -#include -#include - -#define foreach_netmap_input_error - -typedef enum -{ -#define _(f,s) NETMAP_INPUT_ERROR_##f, - foreach_netmap_input_error -#undef _ - NETMAP_INPUT_N_ERROR, -} netmap_input_error_t; - -static char *netmap_input_error_strings[] = { -#define _(n,s) s, - foreach_netmap_input_error -#undef _ -}; - -typedef struct -{ - u32 next_index; - u32 hw_if_index; - struct netmap_slot slot; -} netmap_input_trace_t; - -static u8 * -format_netmap_input_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - netmap_input_trace_t *t = va_arg (*args, netmap_input_trace_t *); - u32 indent = format_get_indent (s); - - s = format (s, "netmap: hw_if_index %d next-index %d", - t->hw_if_index, t->next_index); - s = format (s, "\n%Uslot: flags 0x%x len %u buf_idx %u", - format_white_space, indent + 2, - t->slot.flags, t->slot.len, t->slot.buf_idx); - return s; -} - -always_inline void -buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, u32 prev_bi) -{ - vlib_buffer_t *b = vlib_get_buffer (vm, bi); - vlib_buffer_t *first_b = vlib_get_buffer (vm, first_bi); - vlib_buffer_t *prev_b = vlib_get_buffer (vm, prev_bi); - - /* update first buffer */ - first_b->total_length_not_including_first_buffer += b->current_length; - - /* update previous buffer */ - prev_b->next_buffer = bi; - prev_b->flags |= VLIB_BUFFER_NEXT_PRESENT; - - /* update current buffer */ - b->next_buffer = 0; -} - -always_inline uword -netmap_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, netmap_if_t * nif) -{ - u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; - uword n_trace = vlib_get_trace_count (vm, node); - netmap_main_t *nm = &netmap_main; - u32 n_rx_packets = 0; - u32 n_rx_bytes = 0; - u32 *to_next = 0; - u32 n_free_bufs; - struct netmap_ring *ring; - int cur_ring; - u32 thread_index = vm->thread_index; - u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm); - - if (nif->per_interface_next_index != ~0) - next_index = nif->per_interface_next_index; - - n_free_bufs = vec_len (nm->rx_buffers[thread_index]); - if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE)) - { - vec_validate (nm->rx_buffers[thread_index], - VLIB_FRAME_SIZE + n_free_bufs - 1); - n_free_bufs += - vlib_buffer_alloc (vm, &nm->rx_buffers[thread_index][n_free_bufs], - VLIB_FRAME_SIZE); - _vec_len (nm->rx_buffers[thread_index]) = n_free_bufs; - } - - cur_ring = nif->first_rx_ring; - while (cur_ring <= nif->last_rx_ring && n_free_bufs) - { - int r = 0; - u32 cur_slot_index; - ring = NETMAP_RXRING (nif->nifp, cur_ring); - r = nm_ring_space (ring); - - if (!r) - { - cur_ring++; - continue; - } - - if (r > n_free_bufs) - r = n_free_bufs; - - cur_slot_index = ring->cur; - while (r) - { - u32 n_left_to_next; - u32 next0 = next_index; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (r && n_left_to_next) - { - vlib_buffer_t *first_b0 = 0; - u32 offset = 0; - u32 bi0 = 0, first_bi0 = 0, prev_bi0; - u32 next_slot_index = (cur_slot_index + 1) % ring->num_slots; - u32 next2_slot_index = (cur_slot_index + 2) % ring->num_slots; - struct netmap_slot *slot = &ring->slot[cur_slot_index]; - u32 data_len = slot->len; - - /* prefetch 2 slots in advance */ - CLIB_PREFETCH (&ring->slot[next2_slot_index], - CLIB_CACHE_LINE_BYTES, LOAD); - /* prefetch start of next packet */ - CLIB_PREFETCH (NETMAP_BUF - (ring, ring->slot[next_slot_index].buf_idx), - CLIB_CACHE_LINE_BYTES, LOAD); - - while (data_len && n_free_bufs) - { - vlib_buffer_t *b0; - /* grab free buffer */ - u32 last_empty_buffer = - vec_len (nm->rx_buffers[thread_index]) - 1; - prev_bi0 = bi0; - bi0 = nm->rx_buffers[thread_index][last_empty_buffer]; - b0 = vlib_get_buffer (vm, bi0); - _vec_len (nm->rx_buffers[thread_index]) = last_empty_buffer; - n_free_bufs--; - - /* copy data */ - u32 bytes_to_copy = - data_len > n_buffer_bytes ? n_buffer_bytes : data_len; - b0->current_data = 0; - clib_memcpy_fast (vlib_buffer_get_current (b0), - (u8 *) NETMAP_BUF (ring, slot->buf_idx) + - offset, bytes_to_copy); - - /* fill buffer header */ - b0->current_length = bytes_to_copy; - - if (offset == 0) - { - b0->total_length_not_including_first_buffer = 0; - b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; - vnet_buffer (b0)->sw_if_index[VLIB_RX] = - nif->sw_if_index; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; - first_bi0 = bi0; - first_b0 = vlib_get_buffer (vm, first_bi0); - } - else - buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0); - - offset += bytes_to_copy; - data_len -= bytes_to_copy; - } - - /* trace */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); - if (PREDICT_FALSE (n_trace > 0)) - { - if (PREDICT_TRUE (first_b0 != 0)) - { - netmap_input_trace_t *tr; - vlib_trace_buffer (vm, node, next0, first_b0, - /* follow_chain */ 0); - vlib_set_trace_count (vm, node, --n_trace); - tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); - tr->next_index = next0; - tr->hw_if_index = nif->hw_if_index; - memcpy (&tr->slot, slot, sizeof (struct netmap_slot)); - } - } - - /* redirect if feature path enabled */ - vnet_feature_start_device_input_x1 (nif->sw_if_index, &next0, - first_b0); - - /* enque and take next packet */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, first_bi0, - next0); - - /* next packet */ - n_rx_packets++; - n_rx_bytes += slot->len; - to_next[0] = first_bi0; - to_next += 1; - n_left_to_next--; - cur_slot_index = next_slot_index; - - r--; - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - ring->head = ring->cur = cur_slot_index; - cur_ring++; - } - - if (n_rx_packets) - ioctl (nif->fd, NIOCRXSYNC, NULL); - - vlib_increment_combined_counter - (vnet_get_main ()->interface_main.combined_sw_if_counters - + VNET_INTERFACE_COUNTER_RX, - vlib_get_thread_index (), nif->hw_if_index, n_rx_packets, n_rx_bytes); - - vnet_device_increment_rx_packets (thread_index, n_rx_packets); - - return n_rx_packets; -} - -VLIB_NODE_FN (netmap_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - int i; - u32 n_rx_packets = 0; - u32 thread_index = vm->thread_index; - netmap_main_t *nm = &netmap_main; - netmap_if_t *nmi; - - for (i = 0; i < vec_len (nm->interfaces); i++) - { - nmi = vec_elt_at_index (nm->interfaces, i); - if (nmi->is_admin_up && - (i % nm->input_cpu_count) == - (thread_index - nm->input_cpu_first_index)) - n_rx_packets += netmap_device_input_fn (vm, node, frame, nmi); - } - - return n_rx_packets; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (netmap_input_node) = { - .name = "netmap-input", - .sibling_of = "device-input", - .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED, - .format_trace = format_netmap_input_trace, - .type = VLIB_NODE_TYPE_INPUT, - /* default state is INTERRUPT mode, switch to POLLING if worker threads are enabled */ - .state = VLIB_NODE_STATE_INTERRUPT, - .n_errors = NETMAP_INPUT_N_ERROR, - .error_strings = netmap_input_error_strings, -}; -/* *INDENT-ON* */ - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ -- cgit 1.2.3-korg