From 8e71529ea86018ab05c8cb77081512cbd2e413a7 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 3 Sep 2018 15:41:45 +0200 Subject: Deprecate old buffer replication scheme Change-Id: I1f54b994425c58776e1445c8d9fe142e7a644d3d Signed-off-by: Damjan Marion --- src/vnet/replication.h | 137 ------------------------------------------------- 1 file changed, 137 deletions(-) delete mode 100644 src/vnet/replication.h (limited to 'src/vnet/replication.h') diff --git a/src/vnet/replication.h b/src/vnet/replication.h deleted file mode 100644 index 6350aedfe7f..00000000000 --- a/src/vnet/replication.h +++ /dev/null @@ -1,137 +0,0 @@ -/* - * replication.h : packet replication - * - * Copyright (c) 2013 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. - */ - -#ifndef included_replication_h -#define included_replication_h - - -#include -#include -#include - - -typedef struct -{ - /* The entire vnet buffer header restored for each replica */ - u8 vnet_buffer[40]; /* 16B aligned to allow vector unit copy */ - u8 reserved[24]; /* space for future expansion of vnet buffer header */ - - /* feature state used during this replication */ - u64 feature_replicas; /* feature's id for its set of replicas */ - u32 feature_counter; /* feature's current index into set of replicas */ - u32 recycle_node_index; /* feature's recycle node index */ - - /* - * data saved from the start of replication and restored - * at the end of replication - */ - vlib_buffer_free_list_index_t saved_free_list_index; /* from vlib buffer */ - - /* data saved from the original packet and restored for each replica */ - u64 l2_header[3]; /* 24B (must be at least 22B for l2 packets) */ - u32 flags; /* vnet buffer flags */ - u16 ip_tos; /* v4 and v6 */ - u16 ip4_checksum; /* needed for v4 only */ - - /* data saved from the vlib buffer header and restored for each replica */ - i16 current_data; /* offset of first byte of packet in packet data */ - u8 pad[2]; /* to 64B */ - u8 l2_packet; /* flag for l2 vs l3 packet data */ - -} replication_context_t; /* 128B */ - - -typedef struct -{ - - u32 recycle_list_index; - - /* per-thread pools of replication contexts */ - replication_context_t **contexts; - - vlib_main_t *vlib_main; - vnet_main_t *vnet_main; - -} replication_main_t; - - -extern replication_main_t replication_main; - - -/* Return 1 if this buffer just came from the replication recycle handler. */ -always_inline u32 -replication_is_recycled (vlib_buffer_t * b0) -{ - return b0->flags & VLIB_BUFFER_IS_RECYCLED; -} - -/* - * Clear the recycle flag. If buffer came from the replication recycle - * handler, this flag must be cleared before the packet is transmitted again. - */ -always_inline void -replication_clear_recycled (vlib_buffer_t * b0) -{ - b0->flags &= ~VLIB_BUFFER_IS_RECYCLED; -} - -/* - * Return the active replication context if this buffer has - * been recycled, otherwise return 0. (Note that this essentially - * restricts access to the replication context to the replication - * feature's prep and recycle nodes.) - */ -always_inline replication_context_t * -replication_get_ctx (vlib_buffer_t * b0) -{ - replication_main_t *rm = &replication_main; - - return replication_is_recycled (b0) ? - pool_elt_at_index (rm->contexts[vlib_get_thread_index ()], - b0->recycle_count) : 0; -} - -/* Prefetch the replication context for this buffer, if it exists */ -always_inline void -replication_prefetch_ctx (vlib_buffer_t * b0) -{ - replication_context_t *ctx = replication_get_ctx (b0); - - if (ctx) - { - CLIB_PREFETCH (ctx, (2 * CLIB_CACHE_LINE_BYTES), STORE); - } -} - -replication_context_t *replication_prep (vlib_main_t * vm, - vlib_buffer_t * b0, - u32 recycle_node_index, - u32 l2_packet); - -replication_context_t *replication_recycle (vlib_main_t * vm, - vlib_buffer_t * b0, u32 is_last); - - -#endif - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ -- cgit 1.2.3-korg