2 *------------------------------------------------------------------
3 * crypto_node.c - DPDK Cryptodev input node
5 * Copyright (c) 2016 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 copy 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 <vnet/devices/dpdk/ipsec/ipsec.h>
27 #define foreach_dpdk_crypto_input_next \
28 _(DROP, "error-drop") \
29 _(ENCRYPT_POST, "dpdk-esp-encrypt-post") \
30 _(DECRYPT_POST, "dpdk-esp-decrypt-post")
34 #define _(f,s) DPDK_CRYPTO_INPUT_NEXT_##f,
35 foreach_dpdk_crypto_input_next
37 DPDK_CRYPTO_INPUT_N_NEXT,
38 } dpdk_crypto_input_next_t;
40 #define foreach_dpdk_crypto_input_error \
41 _(DQ_COPS, "Crypto ops dequeued") \
42 _(COP_FAILED, "Crypto op failed")
46 #define _(f,s) DPDK_CRYPTO_INPUT_ERROR_##f,
47 foreach_dpdk_crypto_input_error
49 DPDK_CRYPTO_INPUT_N_ERROR,
50 } dpdk_crypto_input_error_t;
52 static char *dpdk_crypto_input_error_strings[] = {
54 foreach_dpdk_crypto_input_error
58 vlib_node_registration_t dpdk_crypto_input_node;
67 } dpdk_crypto_input_trace_t;
70 format_dpdk_crypto_input_trace (u8 * s, va_list * args)
72 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
73 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
74 dpdk_crypto_input_trace_t *t = va_arg (*args, dpdk_crypto_input_trace_t *);
76 s = format (s, "dpdk_crypto: cryptodev-id %u queue-pair %u next-index %d",
77 t->cdev, t->qp, t->next_index);
79 s = format (s, " status %u sa-idx %u\n", t->status, t->sa_idx);
84 static_always_inline u32
85 dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
86 crypto_qp_data_t * qpd)
88 u32 n_deq, *to_next = 0, next_index, n_cops, def_next_index;
89 struct rte_crypto_op **cops = qpd->cops;
91 if (qpd->inflights == 0)
95 def_next_index = DPDK_CRYPTO_INPUT_NEXT_ENCRYPT_POST;
97 def_next_index = DPDK_CRYPTO_INPUT_NEXT_DECRYPT_POST;
99 n_cops = rte_cryptodev_dequeue_burst (qpd->dev_id, qpd->qp_id,
100 cops, VLIB_FRAME_SIZE);
102 next_index = def_next_index;
104 qpd->inflights -= n_cops;
105 ASSERT (qpd->inflights >= 0);
111 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
113 while (n_cops > 0 && n_left_to_next > 0)
116 vlib_buffer_t *b0 = 0;
117 struct rte_crypto_op *cop;
118 struct rte_crypto_sym_op *sym_cop;
125 next0 = def_next_index;
127 if (PREDICT_FALSE (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS))
129 next0 = DPDK_CRYPTO_INPUT_NEXT_DROP;
130 vlib_node_increment_counter (vm, dpdk_crypto_input_node.index,
131 DPDK_CRYPTO_INPUT_ERROR_COP_FAILED,
134 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
136 sym_cop = (struct rte_crypto_sym_op *) (cop + 1);
137 b0 = vlib_buffer_from_rte_mbuf (sym_cop->m_src);
138 bi0 = vlib_get_buffer_index (vm, b0);
143 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
145 vlib_trace_next_frame (vm, node, next0);
146 dpdk_crypto_input_trace_t *tr =
147 vlib_add_trace (vm, node, b0, sizeof (*tr));
148 tr->cdev = qpd->dev_id;
150 tr->status = cop->status;
151 tr->next_index = next0;
152 tr->sa_idx = vnet_buffer (b0)->ipsec.sad_index;
155 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
156 n_left_to_next, bi0, next0);
158 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
161 crypto_free_cop (qpd, qpd->cops, n_deq);
163 vlib_node_increment_counter (vm, dpdk_crypto_input_node.index,
164 DPDK_CRYPTO_INPUT_ERROR_DQ_COPS, n_deq);
169 dpdk_crypto_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
170 vlib_frame_t * frame)
172 u32 cpu_index = os_get_cpu_number ();
173 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
174 crypto_worker_main_t *cwm = &dcm->workers_main[cpu_index];
175 crypto_qp_data_t *qpd;
179 vec_foreach (qpd, cwm->qp_data)
180 n_deq += dpdk_crypto_dequeue(vm, node, qpd);
186 VLIB_REGISTER_NODE (dpdk_crypto_input_node) =
188 .function = dpdk_crypto_input_fn,.name = "dpdk-crypto-input",.format_trace =
189 format_dpdk_crypto_input_trace,.type = VLIB_NODE_TYPE_INPUT,.state =
190 VLIB_NODE_STATE_DISABLED,.n_errors =
191 DPDK_CRYPTO_INPUT_N_ERROR,.error_strings =
192 dpdk_crypto_input_error_strings,.n_next_nodes =
193 DPDK_CRYPTO_INPUT_N_NEXT,.next_nodes =
195 #define _(s,n) [DPDK_CRYPTO_INPUT_NEXT_##s] = n,
196 foreach_dpdk_crypto_input_next
202 VLIB_NODE_FUNCTION_MULTIARCH (dpdk_crypto_input_node, dpdk_crypto_input_fn)
205 * fd.io coding-style-patch-verification: ON
208 * eval: (c-set-style "gnu")