2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
22 #include <vnet/interface.h>
25 #define AF_XDP_NUM_RX_QUEUES_ALL ((u16)-1)
27 #define af_xdp_log(lvl, dev, f, ...) \
28 vlib_log(lvl, af_xdp_main.log_class, "%v: " f, (dev)->name, ##__VA_ARGS__)
30 #define foreach_af_xdp_device_flags \
31 _ (0, INITIALIZED, "initialized") \
32 _ (1, ERROR, "error") \
33 _ (2, ADMIN_UP, "admin-up") \
34 _ (3, LINK_UP, "link-up") \
35 _ (4, ZEROCOPY, "zero-copy")
39 #define _(a, b, c) AF_XDP_DEVICE_F_##b = (1 << a),
40 foreach_af_xdp_device_flags
44 #define af_xdp_device_error(dev, fmt, ...) \
47 clib_error_t *err_ = clib_error_return_unix (0, fmt, ## __VA_ARGS__); \
48 if (!clib_atomic_bool_cmp_and_swap (&(dev)->error, 0, err_)) \
49 clib_error_free(err_); \
54 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
56 /* fields below are accessed in data-plane (hot) */
58 struct xsk_ring_cons rx;
59 struct xsk_ring_prod fq;
62 /* fields below are accessed in control-plane only (cold) */
71 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
73 /* fields below are accessed in data-plane (hot) */
76 struct xsk_ring_prod tx;
77 struct xsk_ring_cons cq;
83 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
85 /* fields below are accessed in data-plane (hot) */
89 vlib_buffer_t *buffer_template;
90 u32 per_interface_next_index;
94 u8 pool; /* buffer pool index */
97 /* fields below are accessed in control-plane only (cold) */
104 struct xsk_umem **umem;
105 struct xsk_socket **xsk;
107 struct bpf_object *bpf_obj;
108 unsigned linux_ifindex;
116 af_xdp_device_t *devices;
117 vlib_log_class_t log_class;
121 extern af_xdp_main_t af_xdp_main;
125 AF_XDP_MODE_AUTO = 0,
126 AF_XDP_MODE_COPY = 1,
127 AF_XDP_MODE_ZERO_COPY = 2,
144 } af_xdp_create_if_args_t;
146 void af_xdp_create_if (vlib_main_t * vm, af_xdp_create_if_args_t * args);
147 void af_xdp_delete_if (vlib_main_t * vm, af_xdp_device_t * ad);
149 extern vlib_node_registration_t af_xdp_input_node;
150 extern vnet_device_class_t af_xdp_device_class;
153 format_function_t format_af_xdp_device;
154 format_function_t format_af_xdp_device_name;
155 format_function_t format_af_xdp_input_trace;
158 unformat_function_t unformat_af_xdp_create_if_args;
164 } af_xdp_input_trace_t;
166 #define foreach_af_xdp_tx_func_error \
167 _(NO_FREE_SLOTS, "no free tx slots") \
168 _(SENDTO_REQUIRED, "sendto required") \
169 _(SENDTO_FAILURES, "sendto failures")
173 #define _(f,s) AF_XDP_TX_ERROR_##f,
174 foreach_af_xdp_tx_func_error
177 } af_xdp_tx_func_error_t;
179 #endif /* _AF_XDP_H_ */
182 * fd.io coding-style-patch-verification: ON
185 * eval: (c-set-style "gnu")