misc: Purge unused pg includes - vpp - Vector Packet Processing

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author	Neale Ranns <nranns@cisco.com>	2020-10-05 12:39:41 +0000
committer	Damjan Marion <dmarion@me.com>	2020-10-07 16:05:16 +0000
commit	6e366be38ff4f71d4ad5a24929519dc3c874ed36 (patch)
tree	92cdf9e561bd115bdffc71f3c630877d568938a9 /src/plugins/l2tp
parent	65fa036ec71b9b111b22802a69a83af2798ea10e (diff)

misc: Purge unused pg includes

Type: style Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I26a19e42076e031ec5399d5ca05cb49fd6fbe1cd

Diffstat (limited to 'src/plugins/l2tp')

0 files changed, 0 insertions, 0 deletions

/* *------------------------------------------------------------------ * af_packet.c - linux kernel packet interface * * 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 <linux/if_packet.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <net/if.h> #include <net/if_arp.h> #include <vlib/vlib.h> #include <vlib/unix/unix.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> #include <vnet/devices/af_packet/af_packet.h> #define foreach_af_packet_tx_func_error \ _(FRAME_NOT_READY, "tx frame not ready") \ _(TXRING_EAGAIN, "tx sendto temporary failure") \ _(TXRING_FATAL, "tx sendto fatal failure") \ _(TXRING_OVERRUN, "tx ring overrun") typedef enum { #define _(f,s) AF_PACKET_TX_ERROR_##f, foreach_af_packet_tx_func_error #undef _ AF_PACKET_TX_N_ERROR, } af_packet_tx_func_error_t; static char *af_packet_tx_func_error_strings[] = { #define _(n,s) s, foreach_af_packet_tx_func_error #undef _ }; u8 * format_af_packet_device_name (u8 * s, va_list * args) { u32 i = va_arg (*args, u32); af_packet_main_t *apm = &af_packet_main; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, i); s = format (s, "host-%s", apif->host_if_name); return s; } static u8 * format_af_packet_device (u8 * s, va_list * args) { s = format (s, "Linux PACKET socket interface"); return s; } static u8 * format_af_packet_tx_trace (u8 * s, va_list * args) { s = format (s, "Unimplemented..."); return s; } static uword af_packet_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { af_packet_main_t *apm = &af_packet_main; u32 *buffers = vlib_frame_args (frame); u32 n_left = frame->n_vectors; u32 n_sent = 0; vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, rd->dev_instance); clib_spinlock_lock_if_init (&apif->lockp); int block = 0; u32 block_size = apif->tx_req->tp_block_size; u32 frame_size = apif->tx_req->tp_frame_size; u32 frame_num = apif->tx_req->tp_frame_nr; u8 *block_start = apif->tx_ring + block * block_size; u32 tx_frame = apif->next_tx_frame; struct tpacket2_hdr *tph; u32 frame_not_ready = 0; while (n_left > 0) { u32 len; u32 offset = 0; vlib_buffer_t *b0; n_left--; u32 bi = buffers[0]; buffers++; tph = (struct tpacket2_hdr *) (block_start + tx_frame * frame_size); if (PREDICT_FALSE (tph->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING))) { frame_not_ready++; goto next; } do { b0 = vlib_get_buffer (vm, bi); len = b0->current_length; clib_memcpy ((u8 *) tph + TPACKET_ALIGN (sizeof (struct tpacket2_hdr)) + offset, vlib_buffer_get_current (b0), len); offset += len; } while ((bi = (b0->flags & VLIB_BUFFER_NEXT_PRESENT) ? b0->next_buffer : 0)); tph->tp_len = tph->tp_snaplen = offset; tph->tp_status = TP_STATUS_SEND_REQUEST; n_sent++; next: tx_frame = (tx_frame + 1) % frame_num; /* check if we've exhausted the ring */ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num)) break; } CLIB_MEMORY_BARRIER (); if (PREDICT_TRUE (n_sent)) { apif->next_tx_frame = tx_frame; if (PREDICT_FALSE (sendto (apif->fd, NULL, 0, MSG_DONTWAIT, NULL, 0) == -1)) { /* Uh-oh, drop & move on, but count whether it was fatal or not. * Note that we have no reliable way to properly determine the * disposition of the packets we just enqueued for delivery. */ vlib_error_count (vm, node->node_index, unix_error_is_fatal (errno) ? AF_PACKET_TX_ERROR_TXRING_FATAL : AF_PACKET_TX_ERROR_TXRING_EAGAIN, n_sent); } } clib_spinlock_unlock_if_init (&apif->lockp); if (PREDICT_FALSE (frame_not_ready)) vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_FRAME_NOT_READY, frame_not_ready); if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num)) vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_TXRING_OVERRUN, n_left); vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors); return frame->n_vectors; } static void af_packet_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, u32 node_index) { af_packet_main_t *apm = &af_packet_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hw->dev_instance); /* Shut off redirection */ if (node_index == ~0) { apif->per_interface_next_index = node_index; return; } apif->per_interface_next_index = vlib_node_add_next (vlib_get_main (), af_packet_input_node.index, node_index); } static void af_packet_clear_hw_interface_counters (u32 instance) { /* Nothing for now */ } static clib_error_t * af_packet_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { af_packet_main_t *apm = &af_packet_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hw->dev_instance); u32 hw_flags; int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0); struct ifreq ifr; if (0 > fd) { vlib_log_warn (apm->log_class, "af_packet_%s could not open socket", apif->host_if_name); return 0; } /* if interface is a bridge ignore */ if (apif->host_if_index < 0) goto error; /* no error */ /* use host_if_index in case host name has changed */ ifr.ifr_ifindex = apif->host_if_index; if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0) { vlib_log_warn (apm->log_class, "af_packet_%s ioctl could not retrieve eth name", apif->host_if_name); goto error; } apif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; if ((rv = ioctl (fd, SIOCGIFFLAGS, &ifr)) < 0) { vlib_log_warn (apm->log_class, "af_packet_%s error: %d", apif->is_admin_up ? "up" : "down", rv); goto error; } if (apif->is_admin_up) { hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP; ifr.ifr_flags |= IFF_UP; } else { hw_flags = 0; ifr.ifr_flags &= ~IFF_UP; } if ((rv = ioctl (fd, SIOCSIFFLAGS, &ifr)) < 0) { vlib_log_warn (apm->log_class, "af_packet_%s error: %d", apif->is_admin_up ? "up" : "down", rv); goto error; } vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); error: if (0 <= fd) close (fd); return 0; /* no error */ } static clib_error_t * af_packet_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; } static clib_error_t *af_packet_set_mac_address_function (struct vnet_hw_interface_t *hi, char *address) { af_packet_main_t *apm = &af_packet_main; af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hi->dev_instance); int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0); struct ifreq ifr; if (0 > fd) { vlib_log_warn (apm->log_class, "af_packet_%s could not open socket", apif->host_if_name); return 0; } /* if interface is a bridge ignore */ if (apif->host_if_index < 0) goto error; /* no error */ /* use host_if_index in case host name has changed */ ifr.ifr_ifindex = apif->host_if_index; if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0) { vlib_log_warn (apm->log_class, "af_packet_%s ioctl could not retrieve eth name, error: %d", apif->host_if_name, rv); goto error; } clib_memcpy (ifr.ifr_hwaddr.sa_data, address, 6); ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER; if ((rv = ioctl (fd, SIOCSIFHWADDR, &ifr)) < 0) { vlib_log_warn (apm->log_class, "af_packet_%s ioctl could not set mac, error: %d", apif->host_if_name, rv); goto error; } error: if (0 <= fd) close (fd); return 0; /* no error */ } /* *INDENT-OFF* */ VNET_DEVICE_CLASS (af_packet_device_class) = { .name = "af-packet", .tx_function = af_packet_interface_tx, .format_device_name = format_af_packet_device_name, .format_device = format_af_packet_device, .format_tx_trace = format_af_packet_tx_trace, .tx_function_n_errors = AF_PACKET_TX_N_ERROR, .tx_function_error_strings = af_packet_tx_func_error_strings, .rx_redirect_to_node = af_packet_set_interface_next_node, .clear_counters = af_packet_clear_hw_interface_counters, .admin_up_down_function = af_packet_interface_admin_up_down, .subif_add_del_function = af_packet_subif_add_del_function, .mac_addr_change_function = af_packet_set_mac_address_function, }; VLIB_DEVICE_TX_FUNCTION_MULTIARCH (af_packet_device_class, af_packet_interface_tx) /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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