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_cryptodev_sym_session *session;
132 } crypto_session_by_drv_t;
136 /* Required for vec_validate_aligned */
137 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
138 struct rte_mempool *crypto_op;
139 struct rte_mempool *session_h;
140 struct rte_mempool **session_drv;
141 crypto_session_disposal_t *session_disposal;
142 uword *session_by_sa_index;
143 u64 crypto_op_get_failed;
144 u64 session_h_failed;
145 u64 *session_drv_failed;
146 crypto_session_by_drv_t *session_by_drv_id_and_sa_index;
147 clib_spinlock_t lockp;
152 crypto_worker_main_t *workers_main;
154 crypto_resource_t *resource;
155 crypto_alg_t *cipher_algs;
156 crypto_alg_t *auth_algs;
159 u64 session_timeout; /* nsec */
161 } dpdk_crypto_main_t;
163 extern dpdk_crypto_main_t dpdk_crypto_main;
165 static const u8 pad_data[] =
166 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0 };
168 void crypto_auto_placement (void);
170 clib_error_t *create_sym_session (struct rte_cryptodev_sym_session **session,
171 u32 sa_idx, crypto_resource_t * res,
172 crypto_worker_main_t * cwm, u8 is_outbound);
174 static_always_inline u32
179 sizeof (struct rte_crypto_op) + sizeof (struct rte_crypto_sym_op);
181 return ((op_size + align - 1) & ~(align - 1)) + sizeof (dpdk_op_priv_t);
184 static_always_inline u32
185 crypto_op_get_priv_offset (void)
187 const u32 align = 16;
190 offset = sizeof (struct rte_crypto_op) + sizeof (struct rte_crypto_sym_op);
191 offset = (offset + align - 1) & ~(align - 1);
196 static_always_inline dpdk_op_priv_t *
197 crypto_op_get_priv (struct rte_crypto_op * op)
199 return (dpdk_op_priv_t *) (((u8 *) op) + crypto_op_get_priv_offset ());
203 static_always_inline void
204 add_session_by_drv_and_sa_idx (struct rte_cryptodev_sym_session *session,
205 crypto_data_t * data, u32 drv_id, u32 sa_idx)
207 crypto_session_by_drv_t *sbd;
208 vec_validate_aligned (data->session_by_drv_id_and_sa_index, sa_idx,
209 CLIB_CACHE_LINE_BYTES);
210 sbd = vec_elt_at_index (data->session_by_drv_id_and_sa_index, sa_idx);
211 sbd->dev_mask |= 1L << drv_id;
212 sbd->session = session;
215 static_always_inline struct rte_cryptodev_sym_session *
216 get_session_by_drv_and_sa_idx (crypto_data_t * data, u32 drv_id, u32 sa_idx)
218 crypto_session_by_drv_t *sess_by_sa;
219 if (_vec_len (data->session_by_drv_id_and_sa_index) <= sa_idx)
222 vec_elt_at_index (data->session_by_drv_id_and_sa_index, sa_idx);
223 return (sess_by_sa->dev_mask & (1L << drv_id)) ? sess_by_sa->session : NULL;
226 static_always_inline clib_error_t *
227 crypto_get_session (struct rte_cryptodev_sym_session ** session,
229 crypto_resource_t * res,
230 crypto_worker_main_t * cwm, u8 is_outbound)
232 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
234 struct rte_cryptodev_sym_session *sess;
236 data = vec_elt_at_index (dcm->data, res->numa);
237 sess = get_session_by_drv_and_sa_idx (data, res->drv_id, sa_idx);
239 if (PREDICT_FALSE (!sess))
240 return create_sym_session (session, sa_idx, res, cwm, is_outbound);
247 static_always_inline u16
248 get_resource (crypto_worker_main_t * cwm, ipsec_sa_t * sa)
250 u16 cipher_res = cwm->cipher_resource_idx[sa->crypto_alg];
251 u16 auth_res = cwm->auth_resource_idx[sa->integ_alg];
254 /* Not allowed to setup SA with no-aead-cipher/NULL or NULL/NULL */
256 is_aead = ((sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128) ||
257 (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_192) ||
258 (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_256));
260 if (sa->crypto_alg == IPSEC_CRYPTO_ALG_NONE)
263 if (cipher_res == auth_res)
272 static_always_inline i32
273 crypto_alloc_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);
279 ret = rte_mempool_get_bulk (data->crypto_op, (void **) ops, n);
282 data->crypto_op_get_failed += ! !ret;
288 static_always_inline void
289 crypto_free_ops (u8 numa, struct rte_crypto_op **ops, u32 n)
291 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
292 crypto_data_t *data = vec_elt_at_index (dcm->data, numa);
297 rte_mempool_put_bulk (data->crypto_op, (void **) ops, n);
300 static_always_inline void
301 crypto_enqueue_ops (vlib_main_t * vm, crypto_worker_main_t * cwm, u8 outbound,
302 u32 node_index, u32 error, u8 numa)
304 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
305 crypto_resource_t *res;
309 vec_foreach (res_idx, cwm->resource_idx)
312 res = vec_elt_at_index (dcm->resource, res_idx[0]);
317 enq = rte_cryptodev_enqueue_burst (res->dev_id, res->qp_id + outbound,
318 res->ops, res->n_ops);
319 res->inflights[outbound] += enq;
321 if (PREDICT_FALSE (enq < res->n_ops))
323 crypto_free_ops (numa, &res->ops[enq], res->n_ops - enq);
324 vlib_buffer_free (vm, &res->bi[enq], res->n_ops - enq);
326 vlib_node_increment_counter (vm, node_index, error,
334 static_always_inline void
335 crypto_set_icb (dpdk_gcm_cnt_blk * icb, u32 salt, u32 seq, u32 seq_hi)
342 static_always_inline void
343 crypto_op_setup (u8 is_aead, struct rte_mbuf *mb0,
344 struct rte_crypto_op *op, void *session,
345 u32 cipher_off, u32 cipher_len,
346 u32 auth_off, u32 auth_len,
347 u8 * aad, u8 * digest, u64 digest_paddr)
349 struct rte_crypto_sym_op *sym_op;
351 sym_op = (struct rte_crypto_sym_op *) (op + 1);
354 sym_op->session = session;
358 sym_op->aead.data.offset = cipher_off;
359 sym_op->aead.data.length = cipher_len;
361 sym_op->aead.aad.data = aad;
362 sym_op->aead.aad.phys_addr =
363 op->phys_addr + (uintptr_t) aad - (uintptr_t) op;
365 sym_op->aead.digest.data = digest;
366 sym_op->aead.digest.phys_addr = digest_paddr;
370 sym_op->cipher.data.offset = cipher_off;
371 sym_op->cipher.data.length = cipher_len;
373 sym_op->auth.data.offset = auth_off;
374 sym_op->auth.data.length = auth_len;
376 sym_op->auth.digest.data = digest;
377 sym_op->auth.digest.phys_addr = digest_paddr;
381 #endif /* __DPDK_IPSEC_H__ */
384 * fd.io coding-style-patch-verification: ON
387 * eval: (c-set-style "gnu")