2 *------------------------------------------------------------------
3 * crypto_node.c - DPDK Cryptodev input node
5 * Copyright (c) 2017 Intel and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a opy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vlib/vlib.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/ethernet/ethernet.h>
23 #include <vnet/ipsec/ipsec.h>
25 #include <dpdk/buffer.h>
26 #include <dpdk/device/dpdk.h>
27 #include <dpdk/device/dpdk_priv.h>
28 #include <dpdk/ipsec/ipsec.h>
30 #define foreach_dpdk_crypto_input_error \
31 _(DQ_COPS, "Crypto ops dequeued") \
32 _(AUTH_FAILED, "Crypto verification failed") \
33 _(STATUS, "Crypto operation failed")
37 #define _(f,s) DPDK_CRYPTO_INPUT_ERROR_##f,
38 foreach_dpdk_crypto_input_error
40 DPDK_CRYPTO_INPUT_N_ERROR,
41 } dpdk_crypto_input_error_t;
43 static char *dpdk_crypto_input_error_strings[] = {
45 foreach_dpdk_crypto_input_error
49 extern vlib_node_registration_t dpdk_crypto_input_node;
53 /* dev id of this cryptodev */
56 } dpdk_crypto_input_trace_t;
59 format_dpdk_crypto_input_trace (u8 * s, va_list * args)
61 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
62 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
63 dpdk_crypto_input_trace_t *t = va_arg (*args, dpdk_crypto_input_trace_t *);
65 s = format (s, "cryptodev-id %d next-index %d", t->dev_id, t->next_index);
70 static_always_inline void
71 dpdk_crypto_input_check_op (vlib_main_t * vm, vlib_node_runtime_t * node,
72 struct rte_crypto_op *op0, u16 * next)
74 if (PREDICT_FALSE (op0->status != RTE_CRYPTO_OP_STATUS_SUCCESS))
76 next[0] = DPDK_CRYPTO_INPUT_NEXT_DROP;
77 vlib_node_increment_counter (vm,
79 DPDK_CRYPTO_INPUT_ERROR_STATUS, 1);
81 if (op0->status == RTE_CRYPTO_OP_STATUS_AUTH_FAILED)
82 vlib_node_increment_counter (vm,
84 DPDK_CRYPTO_INPUT_ERROR_AUTH_FAILED, 1);
89 dpdk_crypto_input_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
90 u8 dev_id, u32 * bis, u16 * nexts, u32 n_deq)
94 if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
98 while (n_trace && n_left)
107 b0 = vlib_get_buffer (vm, bi);
109 vlib_trace_buffer (vm, node, next, b0, /* follow_chain */ 0);
111 dpdk_crypto_input_trace_t *tr =
112 vlib_add_trace (vm, node, b0, sizeof (*tr));
114 tr->next_index = next;
121 vlib_set_trace_count (vm, node, n_trace);
125 static_always_inline u32
126 dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
127 crypto_resource_t * res)
129 u32 thread_idx = vlib_get_thread_index ();
130 u8 numa = rte_socket_id ();
132 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
133 crypto_worker_main_t *cwm =
134 vec_elt_at_index (dcm->workers_main, thread_idx);
137 u32 bis[VLIB_FRAME_SIZE], *bi;
138 u16 nexts[VLIB_FRAME_SIZE], *next;
139 struct rte_crypto_op **ops;
145 n_ops = n_deq = rte_cryptodev_dequeue_burst (res->dev_id,
147 ops, VLIB_FRAME_SIZE);
149 /* no op dequeued, do not proceed */
153 res->inflights -= n_ops;
157 struct rte_crypto_op *op0, *op1, *op2, *op3;
158 vlib_buffer_t *b0, *b1, *b2, *b3;
160 /* Prefetch next iteration. */
163 CLIB_PREFETCH (ops[4], CLIB_CACHE_LINE_BYTES, LOAD);
164 CLIB_PREFETCH (ops[5], CLIB_CACHE_LINE_BYTES, LOAD);
165 CLIB_PREFETCH (ops[6], CLIB_CACHE_LINE_BYTES, LOAD);
166 CLIB_PREFETCH (ops[7], CLIB_CACHE_LINE_BYTES, LOAD);
168 CLIB_PREFETCH (crypto_op_get_priv (ops[4]),
169 CLIB_CACHE_LINE_BYTES, LOAD);
170 CLIB_PREFETCH (crypto_op_get_priv (ops[5]),
171 CLIB_CACHE_LINE_BYTES, LOAD);
172 CLIB_PREFETCH (crypto_op_get_priv (ops[6]),
173 CLIB_CACHE_LINE_BYTES, LOAD);
174 CLIB_PREFETCH (crypto_op_get_priv (ops[7]),
175 CLIB_CACHE_LINE_BYTES, LOAD);
183 next[0] = crypto_op_get_priv (op0)->next;
184 next[1] = crypto_op_get_priv (op1)->next;
185 next[2] = crypto_op_get_priv (op2)->next;
186 next[3] = crypto_op_get_priv (op3)->next;
188 dpdk_crypto_input_check_op (vm, node, op0, next + 0);
189 dpdk_crypto_input_check_op (vm, node, op1, next + 1);
190 dpdk_crypto_input_check_op (vm, node, op2, next + 2);
191 dpdk_crypto_input_check_op (vm, node, op3, next + 3);
193 b0 = vlib_buffer_from_rte_mbuf (op0->sym[0].m_src);
194 b1 = vlib_buffer_from_rte_mbuf (op1->sym[0].m_src);
195 b2 = vlib_buffer_from_rte_mbuf (op2->sym[0].m_src);
196 b3 = vlib_buffer_from_rte_mbuf (op3->sym[0].m_src);
198 bi[0] = vlib_get_buffer_index (vm, b0);
199 bi[1] = vlib_get_buffer_index (vm, b1);
200 bi[2] = vlib_get_buffer_index (vm, b2);
201 bi[3] = vlib_get_buffer_index (vm, b3);
203 op0->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
204 op1->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
205 op2->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
206 op3->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
216 struct rte_crypto_op *op0;
221 next[0] = crypto_op_get_priv (op0)->next;
223 dpdk_crypto_input_check_op (vm, node, op0, next + 0);
225 /* XXX store bi0 and next0 in op0 private? */
226 b0 = vlib_buffer_from_rte_mbuf (op0->sym[0].m_src);
227 bi[0] = vlib_get_buffer_index (vm, b0);
229 op0->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
238 vlib_node_increment_counter (vm, node->node_index,
239 DPDK_CRYPTO_INPUT_ERROR_DQ_COPS, n_deq);
241 vlib_buffer_enqueue_to_next (vm, node, bis, nexts, n_deq);
243 dpdk_crypto_input_trace (vm, node, res->dev_id, bis, nexts, n_deq);
245 crypto_free_ops (numa, cwm->ops, n_deq);
250 static_always_inline uword
251 dpdk_crypto_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
252 vlib_frame_t * frame)
254 u32 thread_index = vlib_get_thread_index ();
255 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
256 crypto_worker_main_t *cwm = &dcm->workers_main[thread_index];
257 crypto_resource_t *res;
259 u16 *remove = NULL, *res_idx;
263 vec_foreach (res_idx, cwm->resource_idx)
265 res = vec_elt_at_index (dcm->resource, res_idx[0]);
268 n_deq += dpdk_crypto_dequeue (vm, node, res);
270 if (PREDICT_FALSE (res->remove && !(res->inflights)))
271 vec_add1 (remove, res_idx[0]);
275 /* TODO removal on master thread? */
276 if (PREDICT_FALSE (remove != NULL))
279 vec_foreach (res_idx, remove)
281 i = vec_search (cwm->resource_idx, res_idx[0]);
282 vec_del1 (cwm->resource_idx, i);
284 res = vec_elt_at_index (dcm->resource, res_idx[0]);
285 res->thread_idx = (u16) ~0;
288 i = vec_search (dcm->dev[res->dev_id].used_resources, res_idx[0]);
289 ASSERT (i != (u16) ~0);
290 vec_del1 (dcm->dev[res->dev_id].used_resources, i);
291 vec_add1 (dcm->dev[res->dev_id].free_resources, res_idx[0]);
301 VLIB_NODE_FN (dpdk_crypto_input_node) (vlib_main_t * vm,
302 vlib_node_runtime_t * node,
303 vlib_frame_t * from_frame)
305 return dpdk_crypto_input_inline (vm, node, from_frame);
309 VLIB_REGISTER_NODE (dpdk_crypto_input_node) =
311 .name = "dpdk-crypto-input",
312 .format_trace = format_dpdk_crypto_input_trace,
313 .type = VLIB_NODE_TYPE_INPUT,
314 .state = VLIB_NODE_STATE_DISABLED,
315 .n_errors = DPDK_CRYPTO_INPUT_N_ERROR,
316 .error_strings = dpdk_crypto_input_error_strings,
317 .n_next_nodes = DPDK_CRYPTO_INPUT_N_NEXT,
320 #define _(s,n) [DPDK_CRYPTO_INPUT_NEXT_##s] = n,
321 foreach_dpdk_crypto_input_next
328 * fd.io coding-style-patch-verification: ON
331 * eval: (c-set-style "gnu")