diff options
Diffstat (limited to 'extras/deprecated/dpdk-ipsec/ipsec.c')
| -rw-r--r-- | extras/deprecated/dpdk-ipsec/ipsec.c | 1087 |
1 files changed, 1087 insertions, 0 deletions
diff --git a/extras/deprecated/dpdk-ipsec/ipsec.c b/extras/deprecated/dpdk-ipsec/ipsec.c new file mode 100644 index 00000000000..e260ba7dcc4 --- /dev/null +++ b/extras/deprecated/dpdk-ipsec/ipsec.c @@ -0,0 +1,1087 @@ +/* + * Copyright (c) 2017 Intel and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <vnet/vnet.h> +#include <vnet/ip/ip.h> +#include <vnet/api_errno.h> +#include <vnet/ipsec/ipsec.h> +#include <vlib/node_funcs.h> +#include <vlib/log.h> + +#include <dpdk/device/dpdk.h> +#include <dpdk/buffer.h> +#include <dpdk/ipsec/ipsec.h> + +dpdk_crypto_main_t dpdk_crypto_main; + +#define EMPTY_STRUCT {0} +#define NUM_CRYPTO_MBUFS 16384 + +static void +algos_init (u32 n_mains) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *a; + + vec_validate_aligned (dcm->cipher_algs, IPSEC_CRYPTO_N_ALG - 1, 8); + + { +#define _(v,f,str) \ + dcm->cipher_algs[IPSEC_CRYPTO_ALG_##f].name = str; \ + dcm->cipher_algs[IPSEC_CRYPTO_ALG_##f].disabled = n_mains; + foreach_ipsec_crypto_alg +#undef _ + } + + /* Minimum boundary for ciphers is 4B, required by ESP */ + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_NONE]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_NULL; + a->boundary = 4; /* 1 */ + a->key_len = 0; + a->iv_len = 0; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CBC_128]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CBC; + a->boundary = 16; + a->key_len = 16; + a->iv_len = 16; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CBC_192]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CBC; + a->boundary = 16; + a->key_len = 24; + a->iv_len = 16; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CBC_256]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CBC; + a->boundary = 16; + a->key_len = 32; + a->iv_len = 16; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CTR_128]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CTR; + a->boundary = 4; /* 1 */ + a->key_len = 16; + a->iv_len = 8; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CTR_192]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CTR; + a->boundary = 4; /* 1 */ + a->key_len = 24; + a->iv_len = 8; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_CTR_256]; + a->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + a->alg = RTE_CRYPTO_CIPHER_AES_CTR; + a->boundary = 4; /* 1 */ + a->key_len = 32; + a->iv_len = 8; + +#define AES_GCM_TYPE RTE_CRYPTO_SYM_XFORM_AEAD +#define AES_GCM_ALG RTE_CRYPTO_AEAD_AES_GCM + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_GCM_128]; + a->type = AES_GCM_TYPE; + a->alg = AES_GCM_ALG; + a->boundary = 4; /* 1 */ + a->key_len = 16; + a->iv_len = 8; + a->trunc_size = 16; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_GCM_192]; + a->type = AES_GCM_TYPE; + a->alg = AES_GCM_ALG; + a->boundary = 4; /* 1 */ + a->key_len = 24; + a->iv_len = 8; + a->trunc_size = 16; + + a = &dcm->cipher_algs[IPSEC_CRYPTO_ALG_AES_GCM_256]; + a->type = AES_GCM_TYPE; + a->alg = AES_GCM_ALG; + a->boundary = 4; /* 1 */ + a->key_len = 32; + a->iv_len = 8; + a->trunc_size = 16; + + vec_validate (dcm->auth_algs, IPSEC_INTEG_N_ALG - 1); + + { +#define _(v,f,str) \ + dcm->auth_algs[IPSEC_INTEG_ALG_##f].name = str; \ + dcm->auth_algs[IPSEC_INTEG_ALG_##f].disabled = n_mains; + foreach_ipsec_integ_alg +#undef _ + } + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_NONE]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_NULL; + a->key_len = 0; + a->trunc_size = 0; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_MD5_96]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_MD5_HMAC; + a->key_len = 16; + a->trunc_size = 12; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_SHA1_96]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_SHA1_HMAC; + a->key_len = 20; + a->trunc_size = 12; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_SHA_256_96]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_SHA256_HMAC; + a->key_len = 32; + a->trunc_size = 12; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_SHA_256_128]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_SHA256_HMAC; + a->key_len = 32; + a->trunc_size = 16; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_SHA_384_192]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_SHA384_HMAC; + a->key_len = 48; + a->trunc_size = 24; + + a = &dcm->auth_algs[IPSEC_INTEG_ALG_SHA_512_256]; + a->type = RTE_CRYPTO_SYM_XFORM_AUTH; + a->alg = RTE_CRYPTO_AUTH_SHA512_HMAC; + a->key_len = 64; + a->trunc_size = 32; +} + +static u8 +cipher_alg_index (const crypto_alg_t * alg) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + + return (alg - dcm->cipher_algs); +} + +static u8 +auth_alg_index (const crypto_alg_t * alg) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + + return (alg - dcm->auth_algs); +} + +static crypto_alg_t * +cipher_cap_to_alg (const struct rte_cryptodev_capabilities *cap, u8 key_len) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *alg; + + if (cap->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC) + return NULL; + + /* *INDENT-OFF* */ + vec_foreach (alg, dcm->cipher_algs) + { + if ((cap->sym.xform_type == RTE_CRYPTO_SYM_XFORM_CIPHER) && + (alg->type == RTE_CRYPTO_SYM_XFORM_CIPHER) && + (cap->sym.cipher.algo == alg->alg) && + (alg->key_len == key_len)) + return alg; + if ((cap->sym.xform_type == RTE_CRYPTO_SYM_XFORM_AEAD) && + (alg->type == RTE_CRYPTO_SYM_XFORM_AEAD) && + (cap->sym.aead.algo == alg->alg) && + (alg->key_len == key_len)) + return alg; + } + /* *INDENT-ON* */ + + return NULL; +} + +static crypto_alg_t * +auth_cap_to_alg (const struct rte_cryptodev_capabilities *cap, u8 trunc_size) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *alg; + + if ((cap->op != RTE_CRYPTO_OP_TYPE_SYMMETRIC) || + (cap->sym.xform_type != RTE_CRYPTO_SYM_XFORM_AUTH)) + return NULL; + + /* *INDENT-OFF* */ + vec_foreach (alg, dcm->auth_algs) + { + if ((cap->sym.auth.algo == alg->alg) && + (alg->trunc_size == trunc_size)) + return alg; + } + /* *INDENT-ON* */ + + return NULL; +} + +static void +crypto_set_aead_xform (struct rte_crypto_sym_xform *xform, + ipsec_sa_t * sa, u8 is_outbound) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *c; + + c = vec_elt_at_index (dcm->cipher_algs, sa->crypto_alg); + + ASSERT (c->type == RTE_CRYPTO_SYM_XFORM_AEAD); + + xform->type = RTE_CRYPTO_SYM_XFORM_AEAD; + xform->aead.algo = c->alg; + xform->aead.key.data = sa->crypto_key.data; + xform->aead.key.length = c->key_len; + xform->aead.iv.offset = + crypto_op_get_priv_offset () + offsetof (dpdk_op_priv_t, cb); + xform->aead.iv.length = 12; + xform->aead.digest_length = c->trunc_size; + xform->aead.aad_length = ipsec_sa_is_set_USE_ESN (sa) ? 12 : 8; + xform->next = NULL; + + if (is_outbound) + xform->aead.op = RTE_CRYPTO_AEAD_OP_ENCRYPT; + else + xform->aead.op = RTE_CRYPTO_AEAD_OP_DECRYPT; +} + +static void +crypto_set_cipher_xform (struct rte_crypto_sym_xform *xform, + ipsec_sa_t * sa, u8 is_outbound) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *c; + + c = vec_elt_at_index (dcm->cipher_algs, sa->crypto_alg); + + ASSERT (c->type == RTE_CRYPTO_SYM_XFORM_CIPHER); + + xform->type = RTE_CRYPTO_SYM_XFORM_CIPHER; + xform->cipher.algo = c->alg; + xform->cipher.key.data = sa->crypto_key.data; + xform->cipher.key.length = c->key_len; + xform->cipher.iv.offset = + crypto_op_get_priv_offset () + offsetof (dpdk_op_priv_t, cb); + xform->cipher.iv.length = c->iv_len; + xform->next = NULL; + + if (is_outbound) + xform->cipher.op = RTE_CRYPTO_CIPHER_OP_ENCRYPT; + else + xform->cipher.op = RTE_CRYPTO_CIPHER_OP_DECRYPT; +} + +static void +crypto_set_auth_xform (struct rte_crypto_sym_xform *xform, + ipsec_sa_t * sa, u8 is_outbound) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *a; + + a = vec_elt_at_index (dcm->auth_algs, sa->integ_alg); + + ASSERT (a->type == RTE_CRYPTO_SYM_XFORM_AUTH); + + xform->type = RTE_CRYPTO_SYM_XFORM_AUTH; + xform->auth.algo = a->alg; + xform->auth.key.data = sa->integ_key.data; + xform->auth.key.length = a->key_len; + xform->auth.digest_length = a->trunc_size; + xform->next = NULL; + + if (is_outbound) + xform->auth.op = RTE_CRYPTO_AUTH_OP_GENERATE; + else + xform->auth.op = RTE_CRYPTO_AUTH_OP_VERIFY; +} + +clib_error_t * +create_sym_session (struct rte_cryptodev_sym_session **session, + u32 sa_idx, + crypto_resource_t * res, + crypto_worker_main_t * cwm, u8 is_outbound) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_data_t *data; + ipsec_sa_t *sa; + struct rte_crypto_sym_xform cipher_xform = { 0 }; + struct rte_crypto_sym_xform auth_xform = { 0 }; + struct rte_crypto_sym_xform *xfs; + struct rte_cryptodev_sym_session **s; + clib_error_t *error = 0; + + sa = ipsec_sa_get (sa_idx); + + if ((sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128) | + (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_192) | + (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_256)) + { + crypto_set_aead_xform (&cipher_xform, sa, is_outbound); + xfs = &cipher_xform; + } + else + { + crypto_set_cipher_xform (&cipher_xform, sa, is_outbound); + crypto_set_auth_xform (&auth_xform, sa, is_outbound); + + if (is_outbound) + { + cipher_xform.next = &auth_xform; + xfs = &cipher_xform; + } + else + { + auth_xform.next = &cipher_xform; + xfs = &auth_xform; + } + } + + data = vec_elt_at_index (dcm->data, res->numa); + clib_spinlock_lock_if_init (&data->lockp); + + /* + * DPDK_VER >= 1708: + * Multiple worker/threads share the session for an SA + * Single session per SA, initialized for each device driver + */ + s = (void *) hash_get (data->session_by_sa_index, sa_idx); + + if (!s) + { + session[0] = rte_cryptodev_sym_session_create (data->session_h); + if (!session[0]) + { + data->session_h_failed += 1; + error = clib_error_return (0, "failed to create session header"); + goto done; + } + hash_set (data->session_by_sa_index, sa_idx, session[0]); + } + else + session[0] = s[0]; + + struct rte_mempool **mp; + mp = vec_elt_at_index (data->session_drv, res->drv_id); + ASSERT (mp[0] != NULL); + + i32 ret = + rte_cryptodev_sym_session_init (res->dev_id, session[0], xfs, mp[0]); + if (ret) + { + data->session_drv_failed[res->drv_id] += 1; + error = clib_error_return (0, "failed to init session for drv %u", + res->drv_id); + goto done; + } + + add_session_by_drv_and_sa_idx (session[0], data, res->drv_id, sa_idx); + +done: + clib_spinlock_unlock_if_init (&data->lockp); + return error; +} + +static void __attribute__ ((unused)) clear_and_free_obj (void *obj) +{ + struct rte_mempool *mp = rte_mempool_from_obj (obj); + + clib_memset (obj, 0, mp->elt_size); + + rte_mempool_put (mp, obj); +} + +/* This is from rte_cryptodev_pmd.h */ +static inline void * +get_session_private_data (const struct rte_cryptodev_sym_session *sess, + uint8_t driver_id) +{ +#if RTE_VERSION < RTE_VERSION_NUM(19, 2, 0, 0) + return sess->sess_private_data[driver_id]; +#else + if (unlikely (sess->nb_drivers <= driver_id)) + return 0; + + return sess->sess_data[driver_id].data; +#endif +} + +/* This is from rte_cryptodev_pmd.h */ +static inline void +set_session_private_data (struct rte_cryptodev_sym_session *sess, + uint8_t driver_id, void *private_data) +{ +#if RTE_VERSION < RTE_VERSION_NUM(19, 2, 0, 0) + sess->sess_private_data[driver_id] = private_data; +#else + if (unlikely (sess->nb_drivers <= driver_id)) + return; + sess->sess_data[driver_id].data = private_data; +#endif +} + +static clib_error_t * +dpdk_crypto_session_disposal (crypto_session_disposal_t * v, u64 ts) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_session_disposal_t *s; + void *drv_session; + u32 drv_id; + i32 ret; + + /* *INDENT-OFF* */ + vec_foreach (s, v) + { + /* ordered vector by timestamp */ + if (!(s->ts + dcm->session_timeout < ts)) + break; + + vec_foreach_index (drv_id, dcm->drv) + { + drv_session = get_session_private_data (s->session, drv_id); + if (!drv_session) + continue; + + /* + * Custom clear to avoid finding a dev_id for drv_id: + * ret = rte_cryptodev_sym_session_clear (dev_id, drv_session); + * ASSERT (!ret); + */ + clear_and_free_obj (drv_session); + + set_session_private_data (s->session, drv_id, NULL); + } + + if (rte_mempool_from_obj(s->session)) + { + ret = rte_cryptodev_sym_session_free (s->session); + ASSERT (!ret); + } + } + /* *INDENT-ON* */ + + if (s < vec_end (v)) + vec_delete (v, s - v, 0); + else + vec_reset_length (v); + + return 0; +} + +static clib_error_t * +add_del_sa_session (u32 sa_index, u8 is_add) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_data_t *data; + struct rte_cryptodev_sym_session *s; + uword *val; + u32 drv_id; + + if (is_add) + return 0; + + /* *INDENT-OFF* */ + vec_foreach (data, dcm->data) + { + clib_spinlock_lock_if_init (&data->lockp); + val = hash_get (data->session_by_sa_index, sa_index); + if (val) + { + s = (struct rte_cryptodev_sym_session *) val[0]; + vec_foreach_index (drv_id, dcm->drv) + { + val = (uword*) get_session_by_drv_and_sa_idx (data, drv_id, sa_index); + if (val) + add_session_by_drv_and_sa_idx(NULL, data, drv_id, sa_index); + } + + hash_unset (data->session_by_sa_index, sa_index); + + u64 ts = unix_time_now_nsec (); + dpdk_crypto_session_disposal (data->session_disposal, ts); + + crypto_session_disposal_t sd; + sd.ts = ts; + sd.session = s; + + vec_add1 (data->session_disposal, sd); + } + clib_spinlock_unlock_if_init (&data->lockp); + } + /* *INDENT-ON* */ + + return 0; +} + +static clib_error_t * +dpdk_ipsec_check_support (ipsec_sa_t * sa) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + + if (sa->integ_alg == IPSEC_INTEG_ALG_NONE) + switch (sa->crypto_alg) + { + case IPSEC_CRYPTO_ALG_NONE: + case IPSEC_CRYPTO_ALG_AES_GCM_128: + case IPSEC_CRYPTO_ALG_AES_GCM_192: + case IPSEC_CRYPTO_ALG_AES_GCM_256: + break; + default: + return clib_error_return (0, "unsupported integ-alg %U crypto-alg %U", + format_ipsec_integ_alg, sa->integ_alg, + format_ipsec_crypto_alg, sa->crypto_alg); + } + + /* XXX do we need the NONE check? */ + if (sa->crypto_alg != IPSEC_CRYPTO_ALG_NONE && + dcm->cipher_algs[sa->crypto_alg].disabled) + return clib_error_return (0, "disabled crypto-alg %U", + format_ipsec_crypto_alg, sa->crypto_alg); + + /* XXX do we need the NONE check? */ + if (sa->integ_alg != IPSEC_INTEG_ALG_NONE && + dcm->auth_algs[sa->integ_alg].disabled) + return clib_error_return (0, "disabled integ-alg %U", + format_ipsec_integ_alg, sa->integ_alg); + return NULL; +} + +static void +crypto_parse_capabilities (crypto_dev_t * dev, + const struct rte_cryptodev_capabilities *cap, + u32 n_mains) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_alg_t *alg; + u8 len, inc; + + for (; cap->op != RTE_CRYPTO_OP_TYPE_UNDEFINED; cap++) + { + /* A single capability maps to multiple cipher/auth algorithms */ + switch (cap->sym.xform_type) + { + case RTE_CRYPTO_SYM_XFORM_AEAD: + case RTE_CRYPTO_SYM_XFORM_CIPHER: + inc = cap->sym.cipher.key_size.increment; + inc = inc ? inc : 1; + for (len = cap->sym.cipher.key_size.min; + len <= cap->sym.cipher.key_size.max; len += inc) + { + alg = cipher_cap_to_alg (cap, len); + if (!alg) + continue; + dev->cipher_support[cipher_alg_index (alg)] = 1; + alg->resources += vec_len (dev->free_resources); + /* At least enough resources to support one algo */ + dcm->enabled |= (alg->resources >= n_mains); + } + break; + case RTE_CRYPTO_SYM_XFORM_AUTH: + inc = cap->sym.auth.digest_size.increment; + inc = inc ? inc : 1; + for (len = cap->sym.auth.digest_size.min; + len <= cap->sym.auth.digest_size.max; len += inc) + { + alg = auth_cap_to_alg (cap, len); + if (!alg) + continue; + dev->auth_support[auth_alg_index (alg)] = 1; + alg->resources += vec_len (dev->free_resources); + /* At least enough resources to support one algo */ + dcm->enabled |= (alg->resources >= n_mains); + } + break; + default: + ; + } + } +} + +static clib_error_t * +crypto_dev_conf (u8 dev, u16 n_qp, u8 numa) +{ + struct rte_cryptodev_config dev_conf = { 0 }; + struct rte_cryptodev_qp_conf qp_conf = { 0 }; + i32 ret; + u16 qp; + char *error_str; + + dev_conf.socket_id = numa; + dev_conf.nb_queue_pairs = n_qp; + + error_str = "failed to configure crypto device %u"; + ret = rte_cryptodev_configure (dev, &dev_conf); + if (ret < 0) + return clib_error_return (0, error_str, dev); + + error_str = "failed to setup crypto device %u queue pair %u"; + qp_conf.nb_descriptors = DPDK_CRYPTO_N_QUEUE_DESC; + for (qp = 0; qp < n_qp; qp++) + { +#if RTE_VERSION < RTE_VERSION_NUM(19, 2, 0, 0) + ret = rte_cryptodev_queue_pair_setup (dev, qp, &qp_conf, numa, NULL); +#else + ret = rte_cryptodev_queue_pair_setup (dev, qp, &qp_conf, numa); +#endif + if (ret < 0) + return clib_error_return (0, error_str, dev, qp); + } + + error_str = "failed to start crypto device %u"; + if (rte_cryptodev_start (dev)) + return clib_error_return (0, error_str, dev); + + return 0; +} + +static void +crypto_scan_devs (u32 n_mains) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + struct rte_cryptodev *cryptodev; + struct rte_cryptodev_info info = { 0 }; + crypto_dev_t *dev; + crypto_resource_t *res; + clib_error_t *error; + u32 i; + u16 max_res_idx, res_idx, j; + u8 drv_id; + + vec_validate_init_empty (dcm->dev, rte_cryptodev_count () - 1, + (crypto_dev_t) EMPTY_STRUCT); + + for (i = 0; i < rte_cryptodev_count (); i++) + { + dev = vec_elt_at_index (dcm->dev, i); + + cryptodev = &rte_cryptodevs[i]; + rte_cryptodev_info_get (i, &info); + + dev->id = i; + dev->name = cryptodev->data->name; + dev->numa = rte_cryptodev_socket_id (i); + dev->features = info.feature_flags; + dev->max_qp = info.max_nb_queue_pairs; + drv_id = info.driver_id; + if (drv_id >= vec_len (dcm->drv)) + vec_validate_init_empty (dcm->drv, drv_id, + (crypto_drv_t) EMPTY_STRUCT); + vec_elt_at_index (dcm->drv, drv_id)->name = info.driver_name; + dev->drv_id = drv_id; + vec_add1 (vec_elt_at_index (dcm->drv, drv_id)->devs, i); + + if (!(info.feature_flags & RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING)) + continue; + + if ((error = crypto_dev_conf (i, dev->max_qp, dev->numa))) + { + clib_error_report (error); + continue; + } + + max_res_idx = dev->max_qp - 1; + + vec_validate (dev->free_resources, max_res_idx); + + res_idx = vec_len (dcm->resource); + vec_validate_init_empty_aligned (dcm->resource, res_idx + max_res_idx, + (crypto_resource_t) EMPTY_STRUCT, + CLIB_CACHE_LINE_BYTES); + + for (j = 0; j <= max_res_idx; j++) + { + vec_elt (dev->free_resources, max_res_idx - j) = res_idx + j; + res = &dcm->resource[res_idx + j]; + res->dev_id = i; + res->drv_id = drv_id; + res->qp_id = j; + res->numa = dev->numa; + res->thread_idx = (u16) ~ 0; + } + + crypto_parse_capabilities (dev, info.capabilities, n_mains); + } +} + +void +crypto_auto_placement (void) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_resource_t *res; + crypto_worker_main_t *cwm; + crypto_dev_t *dev; + u32 thread_idx, skip_master; + u16 res_idx, *idx; + u8 used; + u16 i; + + skip_master = vlib_num_workers () > 0; + + /* *INDENT-OFF* */ + vec_foreach (dev, dcm->dev) + { + vec_foreach_index (thread_idx, dcm->workers_main) + { + if (vec_len (dev->free_resources) == 0) + break; + + if (thread_idx < skip_master) + continue; + + /* Check thread is not already using the device */ + vec_foreach (idx, dev->used_resources) + if (dcm->resource[idx[0]].thread_idx == thread_idx) + continue; + + cwm = vec_elt_at_index (dcm->workers_main, thread_idx); + + used = 0; + res_idx = vec_pop (dev->free_resources); + + /* Set device only for supported algos */ + for (i = 0; i < IPSEC_CRYPTO_N_ALG; i++) + if (dev->cipher_support[i] && + cwm->cipher_resource_idx[i] == (u16) ~0) + { + dcm->cipher_algs[i].disabled--; + cwm->cipher_resource_idx[i] = res_idx; + used = 1; + } + + for (i = 0; i < IPSEC_INTEG_N_ALG; i++) + if (dev->auth_support[i] && + cwm->auth_resource_idx[i] == (u16) ~0) + { + dcm->auth_algs[i].disabled--; + cwm->auth_resource_idx[i] = res_idx; + used = 1; + } + + if (!used) + { + vec_add1 (dev->free_resources, res_idx); + continue; + } + + vec_add1 (dev->used_resources, res_idx); + + res = vec_elt_at_index (dcm->resource, res_idx); + + ASSERT (res->thread_idx == (u16) ~0); + res->thread_idx = thread_idx; + + /* Add device to vector of polling resources */ + vec_add1 (cwm->resource_idx, res_idx); + } + } + /* *INDENT-ON* */ +} + +static void +crypto_op_init (struct rte_mempool *mempool, + void *_arg __attribute__ ((unused)), + void *_obj, unsigned i __attribute__ ((unused))) +{ + struct rte_crypto_op *op = _obj; + + op->sess_type = RTE_CRYPTO_OP_WITH_SESSION; + op->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; + op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; + op->phys_addr = rte_mempool_virt2iova (_obj); + op->mempool = mempool; +} + +static clib_error_t * +crypto_create_crypto_op_pool (vlib_main_t * vm, u8 numa) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + dpdk_config_main_t *conf = &dpdk_config_main; + crypto_data_t *data; + u8 *pool_name; + u32 pool_priv_size = sizeof (struct rte_crypto_op_pool_private); + struct rte_crypto_op_pool_private *priv; + struct rte_mempool *mp; + + data = vec_elt_at_index (dcm->data, numa); + + /* Already allocated */ + if (data->crypto_op) + return NULL; + + pool_name = format (0, "crypto_pool_numa%u%c", numa, 0); + + if (conf->num_crypto_mbufs == 0) + conf->num_crypto_mbufs = NUM_CRYPTO_MBUFS; + + mp = rte_mempool_create ((char *) pool_name, conf->num_crypto_mbufs, + crypto_op_len (), 512, pool_priv_size, NULL, NULL, + crypto_op_init, NULL, numa, 0); + + vec_free (pool_name); + + if (!mp) + return clib_error_return (0, "failed to create crypto op mempool"); + + /* Initialize mempool private data */ + priv = rte_mempool_get_priv (mp); + priv->priv_size = pool_priv_size; + priv->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; + + data->crypto_op = mp; + + return NULL; +} + +static clib_error_t * +crypto_create_session_h_pool (vlib_main_t * vm, u8 numa) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_data_t *data; + u8 *pool_name; + struct rte_mempool *mp; + u32 elt_size; + + data = vec_elt_at_index (dcm->data, numa); + + if (data->session_h) + return NULL; + + pool_name = format (0, "session_h_pool_numa%u%c", numa, 0); + + + elt_size = rte_cryptodev_sym_get_header_session_size (); + +#if RTE_VERSION < RTE_VERSION_NUM(19, 2, 0, 0) + mp = rte_mempool_create ((char *) pool_name, DPDK_CRYPTO_NB_SESS_OBJS, + elt_size, 512, 0, NULL, NULL, NULL, NULL, numa, 0); +#else + /* XXX Experimental tag in DPDK 19.02 */ + mp = rte_cryptodev_sym_session_pool_create ((char *) pool_name, + DPDK_CRYPTO_NB_SESS_OBJS, + elt_size, 512, 0, numa); +#endif + vec_free (pool_name); + + if (!mp) + return clib_error_return (0, "failed to create crypto session mempool"); + + data->session_h = mp; + + return NULL; +} + +static clib_error_t * +crypto_create_session_drv_pool (vlib_main_t * vm, crypto_dev_t * dev) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_data_t *data; + u8 *pool_name; + struct rte_mempool *mp; + u32 elt_size; + u8 numa = dev->numa; + + data = vec_elt_at_index (dcm->data, numa); + + vec_validate (data->session_drv, dev->drv_id); + vec_validate (data->session_drv_failed, dev->drv_id); + vec_validate_aligned (data->session_by_drv_id_and_sa_index, 32, + CLIB_CACHE_LINE_BYTES); + + if (data->session_drv[dev->drv_id]) + return NULL; + + pool_name = format (0, "session_drv%u_pool_numa%u%c", dev->drv_id, numa, 0); + + elt_size = rte_cryptodev_sym_get_private_session_size (dev->id); + mp = + rte_mempool_create ((char *) pool_name, DPDK_CRYPTO_NB_SESS_OBJS, + elt_size, 512, 0, NULL, NULL, NULL, NULL, numa, 0); + + vec_free (pool_name); + + if (!mp) + return clib_error_return (0, "failed to create session drv mempool"); + + data->session_drv[dev->drv_id] = mp; + clib_spinlock_init (&data->lockp); + + return NULL; +} + +static clib_error_t * +crypto_create_pools (vlib_main_t * vm) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + clib_error_t *error = NULL; + crypto_dev_t *dev; + + /* *INDENT-OFF* */ + vec_foreach (dev, dcm->dev) + { + vec_validate_aligned (dcm->data, dev->numa, CLIB_CACHE_LINE_BYTES); + + error = crypto_create_crypto_op_pool (vm, dev->numa); + if (error) + return error; + + error = crypto_create_session_h_pool (vm, dev->numa); + if (error) + return error; + + error = crypto_create_session_drv_pool (vm, dev); + if (error) + return error; + } + /* *INDENT-ON* */ + + return NULL; +} + +static void +crypto_disable (void) +{ + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_data_t *data; + u8 i; + + dcm->enabled = 0; + + /* *INDENT-OFF* */ + vec_foreach (data, dcm->data) + { + rte_mempool_free (data->crypto_op); + rte_mempool_free (data->session_h); + + vec_foreach_index (i, data->session_drv) + rte_mempool_free (data->session_drv[i]); + + vec_free (data->session_drv); + clib_spinlock_free (&data->lockp); + } + /* *INDENT-ON* */ + + vec_free (dcm->data); + vec_free (dcm->workers_main); + vec_free (dcm->dev); + vec_free (dcm->resource); + vec_free (dcm->cipher_algs); + vec_free (dcm->auth_algs); +} + +static clib_error_t * +dpdk_ipsec_enable_disable (int is_enable) +{ + vlib_main_t *vm = vlib_get_main (); + vlib_thread_main_t *tm = vlib_get_thread_main (); + vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "dpdk-crypto-input"); + u32 skip_master = vlib_num_workers () > 0; + u32 n_mains = tm->n_vlib_mains; + u32 i; + + ASSERT (node); + for (i = skip_master; i < n_mains; i++) + vlib_node_set_state (vlib_mains[i], node->index, is_enable != 0 ? + VLIB_NODE_STATE_POLLING : VLIB_NODE_STATE_DISABLED); + + return 0; +} + +static clib_error_t * +dpdk_ipsec_main_init (vlib_main_t * vm) +{ + ipsec_main_t *im = &ipsec_main; + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + vlib_thread_main_t *tm = vlib_get_thread_main (); + crypto_worker_main_t *cwm; + clib_error_t *error = NULL; + u32 skip_master, n_mains; + + n_mains = tm->n_vlib_mains; + skip_master = vlib_num_workers () > 0; + + algos_init (n_mains - skip_master); + + crypto_scan_devs (n_mains - skip_master); + + if (!(dcm->enabled)) + { + vlib_log_warn (dpdk_main.log_default, + "not enough DPDK crypto resources"); + crypto_disable (); + return 0; + } + + dcm->session_timeout = 10e9; + + vec_validate_init_empty_aligned (dcm->workers_main, n_mains - 1, + (crypto_worker_main_t) EMPTY_STRUCT, + CLIB_CACHE_LINE_BYTES); + + /* *INDENT-OFF* */ + vec_foreach (cwm, dcm->workers_main) + { + vec_validate_init_empty_aligned (cwm->ops, VLIB_FRAME_SIZE - 1, 0, + CLIB_CACHE_LINE_BYTES); + clib_memset (cwm->cipher_resource_idx, ~0, + IPSEC_CRYPTO_N_ALG * sizeof(*cwm->cipher_resource_idx)); + clib_memset (cwm->auth_resource_idx, ~0, + IPSEC_INTEG_N_ALG * sizeof(*cwm->auth_resource_idx)); + } + /* *INDENT-ON* */ + + crypto_auto_placement (); + + error = crypto_create_pools (vm); + if (error) + { + clib_error_report (error); + crypto_disable (); + return 0; + } + + u32 idx = ipsec_register_esp_backend ( + vm, im, "dpdk backend", "dpdk-esp4-encrypt", "dpdk-esp4-encrypt-tun", + "dpdk-esp4-decrypt", "dpdk-esp4-decrypt", "dpdk-esp6-encrypt", + "dpdk-esp6-encrypt-tun", "dpdk-esp6-decrypt", "dpdk-esp6-decrypt", + "error-drop", dpdk_ipsec_check_support, add_del_sa_session, + dpdk_ipsec_enable_disable); + int rv; + if (im->esp_current_backend == ~0) + { + rv = ipsec_select_esp_backend (im, idx); + ASSERT (rv == 0); + } + return 0; +} + +VLIB_MAIN_LOOP_ENTER_FUNCTION (dpdk_ipsec_main_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |