2 * Copyright (c) 2017 Intel and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #ifndef __DPDK_IPSEC_H__
16 #define __DPDK_IPSEC_H__
18 #include <vnet/vnet.h>
19 #include <vppinfra/cache.h>
20 #include <vnet/ipsec/ipsec.h>
23 #include <rte_config.h>
24 #include <rte_crypto.h>
25 #include <rte_cryptodev.h>
28 #define always_inline static inline
30 #define always_inline static inline __attribute__ ((__always_inline__))
33 #define foreach_dpdk_crypto_input_next \
34 _(DROP, "error-drop") \
35 _(IP4_LOOKUP, "ip4-lookup") \
36 _(IP6_LOOKUP, "ip6-lookup") \
37 _(INTERFACE_OUTPUT, "interface-output") \
38 _(DECRYPT_POST, "dpdk-esp-decrypt-post")
42 #define _(f,s) DPDK_CRYPTO_INPUT_NEXT_##f,
43 foreach_dpdk_crypto_input_next
45 DPDK_CRYPTO_INPUT_N_NEXT,
46 } dpdk_crypto_input_next_t;
48 #define MAX_QP_PER_LCORE 16
60 dpdk_gcm_cnt_blk cb __attribute__ ((aligned (16)));
68 struct rte_crypto_op **ops;
69 u16 cipher_resource_idx[IPSEC_CRYPTO_N_ALG];
70 u16 auth_resource_idx[IPSEC_INTEG_N_ALG];
71 CLIB_CACHE_LINE_ALIGN_MARK (pad);
72 } crypto_worker_main_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
77 enum rte_crypto_sym_xform_type type;
85 } crypto_alg_t __attribute__ ((aligned (8)));
91 u8 cipher_support[IPSEC_CRYPTO_N_ALG];
92 u8 auth_support[IPSEC_INTEG_N_ALG];
118 struct rte_crypto_op *ops[VLIB_FRAME_SIZE];
119 u32 bi[VLIB_FRAME_SIZE];
120 } crypto_resource_t __attribute__ ((aligned (CLIB_CACHE_LINE_BYTES)));
125 struct rte_cryptodev_sym_session *session;
126 } crypto_session_disposal_t;
130 struct rte_mempool *crypto_op;
131 struct rte_mempool *session_h;
132 struct rte_mempool **session_drv;
133 crypto_session_disposal_t *session_disposal;
134 uword *session_by_sa_index;
135 uword *session_by_drv_id_and_sa_index;
136 u64 crypto_op_get_failed;
137 u64 session_h_failed;
138 u64 *session_drv_failed;
139 clib_spinlock_t lockp;
144 crypto_worker_main_t *workers_main;
145 struct rte_cryptodev_sym_session **sa_session;
147 crypto_resource_t *resource;
148 crypto_alg_t *cipher_algs;
149 crypto_alg_t *auth_algs;
152 u64 session_timeout; /* nsec */
154 } dpdk_crypto_main_t;
156 extern dpdk_crypto_main_t dpdk_crypto_main;
158 static const u8 pad_data[] =
159 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0 };
161 void crypto_auto_placement (void);
163 clib_error_t *create_sym_session (struct rte_cryptodev_sym_session **session,
164 u32 sa_idx, crypto_resource_t * res,
165 crypto_worker_main_t * cwm, u8 is_outbound);
167 static_always_inline u32
172 sizeof (struct rte_crypto_op) + sizeof (struct rte_crypto_sym_op);
174 return ((op_size + align - 1) & ~(align - 1)) + sizeof (dpdk_op_priv_t);
177 static_always_inline u32
178 crypto_op_get_priv_offset (void)
180 const u32 align = 16;
183 offset = sizeof (struct rte_crypto_op) + sizeof (struct rte_crypto_sym_op);
184 offset = (offset + align - 1) & ~(align - 1);
189 static_always_inline dpdk_op_priv_t *
190 crypto_op_get_priv (struct rte_crypto_op * op)
192 return (dpdk_op_priv_t *) (((u8 *) op) + crypto_op_get_priv_offset ());
195 /* XXX this requires 64 bit builds so hash_xxx macros use u64 key */
204 } crypto_session_key_t;
206 static_always_inline clib_error_t *
207 crypto_get_session (struct rte_cryptodev_sym_session **session,
209 crypto_resource_t * res,
210 crypto_worker_main_t * cwm, u8 is_outbound)
212 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
215 crypto_session_key_t key = { 0 };
217 key.drv_id = res->drv_id;
220 data = vec_elt_at_index (dcm->data, res->numa);
221 val = hash_get (data->session_by_drv_id_and_sa_index, key.val);
223 if (PREDICT_FALSE (!val))
224 return create_sym_session (session, sa_idx, res, cwm, is_outbound);
226 session[0] = (struct rte_cryptodev_sym_session *) val[0];
231 static_always_inline u16
232 get_resource (crypto_worker_main_t * cwm, ipsec_sa_t * sa)
234 u16 cipher_res = cwm->cipher_resource_idx[sa->crypto_alg];
235 u16 auth_res = cwm->auth_resource_idx[sa->integ_alg];
238 /* Not allowed to setup SA with no-aead-cipher/NULL or NULL/NULL */
240 is_aead = ((sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128) |
241 (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_192) |
242 (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_256));
244 if (sa->crypto_alg == IPSEC_CRYPTO_ALG_NONE)
247 if (cipher_res == auth_res)
256 static_always_inline i32
257 crypto_alloc_ops (u8 numa, struct rte_crypto_op ** ops, u32 n)
259 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
260 crypto_data_t *data = vec_elt_at_index (dcm->data, numa);
263 ret = rte_mempool_get_bulk (data->crypto_op, (void **) ops, n);
266 data->crypto_op_get_failed += ! !ret;
272 static_always_inline void
273 crypto_free_ops (u8 numa, struct rte_crypto_op **ops, u32 n)
275 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
276 crypto_data_t *data = vec_elt_at_index (dcm->data, numa);
281 rte_mempool_put_bulk (data->crypto_op, (void **) ops, n);
284 static_always_inline void
285 crypto_enqueue_ops (vlib_main_t * vm, crypto_worker_main_t * cwm, u8 outbound,
286 u32 node_index, u32 error, u8 numa)
288 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
289 crypto_resource_t *res;
293 vec_foreach (res_idx, cwm->resource_idx)
296 res = vec_elt_at_index (dcm->resource, res_idx[0]);
301 enq = rte_cryptodev_enqueue_burst (res->dev_id, res->qp_id + outbound,
302 res->ops, res->n_ops);
303 res->inflights[outbound] += enq;
305 if (PREDICT_FALSE (enq < res->n_ops))
307 crypto_free_ops (numa, &res->ops[enq], res->n_ops - enq);
308 vlib_buffer_free (vm, &res->bi[enq], res->n_ops - enq);
310 vlib_node_increment_counter (vm, node_index, error,
318 static_always_inline void
319 crypto_set_icb (dpdk_gcm_cnt_blk * icb, u32 salt, u32 seq, u32 seq_hi)
326 static_always_inline void
327 crypto_op_setup (u8 is_aead, struct rte_mbuf *mb0,
328 struct rte_crypto_op *op, void *session,
329 u32 cipher_off, u32 cipher_len,
330 u32 auth_off, u32 auth_len,
331 u8 * aad, u8 * digest, u64 digest_paddr)
333 struct rte_crypto_sym_op *sym_op;
335 sym_op = (struct rte_crypto_sym_op *) (op + 1);
338 sym_op->session = session;
342 sym_op->aead.data.offset = cipher_off;
343 sym_op->aead.data.length = cipher_len;
345 sym_op->aead.aad.data = aad;
346 sym_op->aead.aad.phys_addr =
347 op->phys_addr + (uintptr_t) aad - (uintptr_t) op;
349 sym_op->aead.digest.data = digest;
350 sym_op->aead.digest.phys_addr = digest_paddr;
354 sym_op->cipher.data.offset = cipher_off;
355 sym_op->cipher.data.length = cipher_len;
357 sym_op->auth.data.offset = auth_off;
358 sym_op->auth.data.length = auth_len;
360 sym_op->auth.digest.data = digest;
361 sym_op->auth.digest.phys_addr = digest_paddr;
365 #endif /* __DPDK_IPSEC_H__ */
368 * fd.io coding-style-patch-verification: ON
371 * eval: (c-set-style "gnu")