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-rw-r--r--src/plugins/dpdk/ipsec/ipsec.c430
1 files changed, 430 insertions, 0 deletions
diff --git a/src/plugins/dpdk/ipsec/ipsec.c b/src/plugins/dpdk/ipsec/ipsec.c
new file mode 100644
index 00000000000..16bec20ad16
--- /dev/null
+++ b/src/plugins/dpdk/ipsec/ipsec.c
@@ -0,0 +1,430 @@
+/*
+ * Copyright (c) 2016 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 <dpdk/device/dpdk.h>
+#include <dpdk/ipsec/ipsec.h>
+#include <dpdk/ipsec/esp.h>
+
+#define DPDK_CRYPTO_NB_SESS_OBJS 20000
+#define DPDK_CRYPTO_CACHE_SIZE 512
+#define DPDK_CRYPTO_PRIV_SIZE 128
+#define DPDK_CRYPTO_N_QUEUE_DESC 1024
+#define DPDK_CRYPTO_NB_COPS (1024 * 4)
+
+static int
+add_del_sa_sess (u32 sa_index, u8 is_add)
+{
+ dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
+ crypto_worker_main_t *cwm;
+ u8 skip_master = vlib_num_workers () > 0;
+
+ /* *INDENT-OFF* */
+ vec_foreach (cwm, dcm->workers_main)
+ {
+ crypto_sa_session_t *sa_sess;
+ u8 is_outbound;
+
+ if (skip_master)
+ {
+ skip_master = 0;
+ continue;
+ }
+
+ for (is_outbound = 0; is_outbound < 2; is_outbound++)
+ {
+ if (is_add)
+ {
+ pool_get (cwm->sa_sess_d[is_outbound], sa_sess);
+ }
+ else
+ {
+ u8 dev_id;
+
+ sa_sess = pool_elt_at_index (cwm->sa_sess_d[is_outbound], sa_index);
+ dev_id = cwm->qp_data[sa_sess->qp_index].dev_id;
+
+ if (!sa_sess->sess)
+ continue;
+
+ if (rte_cryptodev_sym_session_free(dev_id, sa_sess->sess))
+ {
+ clib_warning("failed to free session");
+ return -1;
+ }
+ memset(sa_sess, 0, sizeof(sa_sess[0]));
+ }
+ }
+ }
+ /* *INDENT-OFF* */
+
+ return 0;
+}
+
+static void
+update_qp_data (crypto_worker_main_t * cwm,
+ u8 cdev_id, u16 qp_id, u8 is_outbound, u16 * idx)
+{
+ crypto_qp_data_t *qpd;
+
+ /* *INDENT-OFF* */
+ vec_foreach_index (*idx, cwm->qp_data)
+ {
+ qpd = vec_elt_at_index(cwm->qp_data, *idx);
+
+ if (qpd->dev_id == cdev_id && qpd->qp_id == qp_id &&
+ qpd->is_outbound == is_outbound)
+ return;
+ }
+ /* *INDENT-ON* */
+
+ vec_add2 (cwm->qp_data, qpd, 1);
+
+ qpd->dev_id = cdev_id;
+ qpd->qp_id = qp_id;
+ qpd->is_outbound = is_outbound;
+}
+
+/*
+ * return:
+ * 0: already exist
+ * 1: mapped
+ */
+static int
+add_mapping (crypto_worker_main_t * cwm,
+ u8 cdev_id, u16 qp, u8 is_outbound,
+ const struct rte_cryptodev_capabilities *cipher_cap,
+ const struct rte_cryptodev_capabilities *auth_cap)
+{
+ u16 qp_index;
+ uword key = 0, data, *ret;
+ crypto_worker_qp_key_t *p_key = (crypto_worker_qp_key_t *) & key;
+
+ p_key->cipher_algo = (u8) cipher_cap->sym.cipher.algo;
+ p_key->auth_algo = (u8) auth_cap->sym.auth.algo;
+ p_key->is_outbound = is_outbound;
+
+ ret = hash_get (cwm->algo_qp_map, key);
+ if (ret)
+ return 0;
+
+ update_qp_data (cwm, cdev_id, qp, is_outbound, &qp_index);
+
+ data = (uword) qp_index;
+ hash_set (cwm->algo_qp_map, key, data);
+
+ return 1;
+}
+
+/*
+ * return:
+ * 0: already exist
+ * 1: mapped
+ */
+static int
+add_cdev_mapping (crypto_worker_main_t * cwm,
+ struct rte_cryptodev_info *dev_info, u8 cdev_id,
+ u16 qp, u8 is_outbound)
+{
+ const struct rte_cryptodev_capabilities *i, *j;
+ u32 mapped = 0;
+
+ for (i = dev_info->capabilities; i->op != RTE_CRYPTO_OP_TYPE_UNDEFINED; i++)
+ {
+ if (i->sym.xform_type != RTE_CRYPTO_SYM_XFORM_CIPHER)
+ continue;
+
+ if (check_algo_is_supported (i, NULL) != 0)
+ continue;
+
+ for (j = dev_info->capabilities; j->op != RTE_CRYPTO_OP_TYPE_UNDEFINED;
+ j++)
+ {
+ if (j->sym.xform_type != RTE_CRYPTO_SYM_XFORM_AUTH)
+ continue;
+
+ if (check_algo_is_supported (j, NULL) != 0)
+ continue;
+
+ mapped |= add_mapping (cwm, cdev_id, qp, is_outbound, i, j);
+ }
+ }
+
+ return mapped;
+}
+
+static int
+check_cryptodev_queues ()
+{
+ u32 n_qs = 0;
+ u8 cdev_id;
+ u32 n_req_qs = 2;
+
+ if (vlib_num_workers () > 0)
+ n_req_qs = vlib_num_workers () * 2;
+
+ for (cdev_id = 0; cdev_id < rte_cryptodev_count (); cdev_id++)
+ {
+ struct rte_cryptodev_info cdev_info;
+
+ rte_cryptodev_info_get (cdev_id, &cdev_info);
+
+ if (!
+ (cdev_info.feature_flags & RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING))
+ continue;
+
+ n_qs += cdev_info.max_nb_queue_pairs;
+ }
+
+ if (n_qs >= n_req_qs)
+ return 0;
+ else
+ return -1;
+}
+
+static clib_error_t *
+dpdk_ipsec_check_support (ipsec_sa_t * sa)
+{
+ if (sa->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128)
+ {
+ if (sa->integ_alg != IPSEC_INTEG_ALG_NONE)
+ return clib_error_return (0, "unsupported integ-alg %U with "
+ "crypto-algo aes-gcm-128",
+ format_ipsec_integ_alg, sa->integ_alg);
+ sa->integ_alg = IPSEC_INTEG_ALG_AES_GCM_128;
+ }
+ else
+ {
+ if (sa->integ_alg == IPSEC_INTEG_ALG_NONE ||
+ sa->integ_alg == IPSEC_INTEG_ALG_AES_GCM_128)
+ return clib_error_return (0, "unsupported integ-alg %U",
+ format_ipsec_integ_alg, sa->integ_alg);
+ }
+
+ return 0;
+}
+
+static uword
+dpdk_ipsec_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ dpdk_config_main_t *conf = &dpdk_config_main;
+ ipsec_main_t *im = &ipsec_main;
+ dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+ struct rte_cryptodev_config dev_conf;
+ struct rte_cryptodev_qp_conf qp_conf;
+ struct rte_cryptodev_info cdev_info;
+ struct rte_mempool *rmp;
+ i32 dev_id, ret;
+ u32 i, skip_master;
+
+ if (!conf->cryptodev)
+ {
+ clib_warning ("DPDK Cryptodev support is disabled, "
+ "default to OpenSSL IPsec");
+ return 0;
+ }
+
+ if (check_cryptodev_queues () < 0)
+ {
+ conf->cryptodev = 0;
+ clib_warning ("not enough Cryptodevs, default to OpenSSL IPsec");
+ return 0;
+ }
+
+ vec_alloc (dcm->workers_main, tm->n_vlib_mains);
+ _vec_len (dcm->workers_main) = tm->n_vlib_mains;
+
+ fprintf (stdout, "DPDK Cryptodevs info:\n");
+ fprintf (stdout, "dev_id\tn_qp\tnb_obj\tcache_size\n");
+ /* HW cryptodevs have higher dev_id, use HW first */
+ for (dev_id = rte_cryptodev_count () - 1; dev_id >= 0; dev_id--)
+ {
+ u16 max_nb_qp, qp = 0;
+ skip_master = vlib_num_workers () > 0;
+
+ rte_cryptodev_info_get (dev_id, &cdev_info);
+
+ if (!
+ (cdev_info.feature_flags & RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING))
+ continue;
+
+ max_nb_qp = cdev_info.max_nb_queue_pairs;
+
+ for (i = 0; i < tm->n_vlib_mains; i++)
+ {
+ u8 is_outbound;
+ crypto_worker_main_t *cwm;
+ uword *map;
+
+ if (skip_master)
+ {
+ skip_master = 0;
+ continue;
+ }
+
+ cwm = vec_elt_at_index (dcm->workers_main, i);
+ map = cwm->algo_qp_map;
+
+ if (!map)
+ {
+ map = hash_create (0, sizeof (crypto_worker_qp_key_t));
+ if (!map)
+ {
+ clib_warning ("unable to create hash table for worker %u",
+ vlib_mains[i]->cpu_index);
+ goto error;
+ }
+ cwm->algo_qp_map = map;
+ }
+
+ for (is_outbound = 0; is_outbound < 2 && qp < max_nb_qp;
+ is_outbound++)
+ qp += add_cdev_mapping (cwm, &cdev_info, dev_id, qp, is_outbound);
+ }
+
+ if (qp == 0)
+ continue;
+
+ dev_conf.socket_id = rte_cryptodev_socket_id (dev_id);
+ dev_conf.nb_queue_pairs = cdev_info.max_nb_queue_pairs;
+ dev_conf.session_mp.nb_objs = DPDK_CRYPTO_NB_SESS_OBJS;
+ dev_conf.session_mp.cache_size = DPDK_CRYPTO_CACHE_SIZE;
+
+ ret = rte_cryptodev_configure (dev_id, &dev_conf);
+ if (ret < 0)
+ {
+ clib_warning ("cryptodev %u config error", dev_id);
+ goto error;
+ }
+
+ qp_conf.nb_descriptors = DPDK_CRYPTO_N_QUEUE_DESC;
+ for (qp = 0; qp < dev_conf.nb_queue_pairs; qp++)
+ {
+ ret = rte_cryptodev_queue_pair_setup (dev_id, qp, &qp_conf,
+ dev_conf.socket_id);
+ if (ret < 0)
+ {
+ clib_warning ("cryptodev %u qp %u setup error", dev_id, qp);
+ goto error;
+ }
+ }
+ vec_validate_aligned (dcm->cop_pools, dev_conf.socket_id,
+ CLIB_CACHE_LINE_BYTES);
+
+ if (!vec_elt (dcm->cop_pools, dev_conf.socket_id))
+ {
+ u8 *pool_name = format (0, "crypto_op_pool_socket%u%c",
+ dev_conf.socket_id, 0);
+
+ rmp = rte_crypto_op_pool_create ((char *) pool_name,
+ RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ DPDK_CRYPTO_NB_COPS *
+ (1 + vlib_num_workers ()),
+ DPDK_CRYPTO_CACHE_SIZE,
+ DPDK_CRYPTO_PRIV_SIZE,
+ dev_conf.socket_id);
+ vec_free (pool_name);
+
+ if (!rmp)
+ {
+ clib_warning ("failed to allocate mempool on socket %u",
+ dev_conf.socket_id);
+ goto error;
+ }
+ vec_elt (dcm->cop_pools, dev_conf.socket_id) = rmp;
+ }
+
+ fprintf (stdout, "%u\t%u\t%u\t%u\n", dev_id, dev_conf.nb_queue_pairs,
+ DPDK_CRYPTO_NB_SESS_OBJS, DPDK_CRYPTO_CACHE_SIZE);
+ }
+
+ dpdk_esp_init ();
+
+ /* Add new next node and set as default */
+ vlib_node_t *node, *next_node;
+
+ next_node = vlib_get_node_by_name (vm, (u8 *) "dpdk-esp-encrypt");
+ ASSERT (next_node);
+ node = vlib_get_node_by_name (vm, (u8 *) "ipsec-output-ip4");
+ ASSERT (node);
+ im->esp_encrypt_node_index = next_node->index;
+ im->esp_encrypt_next_index =
+ vlib_node_add_next (vm, node->index, next_node->index);
+
+ next_node = vlib_get_node_by_name (vm, (u8 *) "dpdk-esp-decrypt");
+ ASSERT (next_node);
+ node = vlib_get_node_by_name (vm, (u8 *) "ipsec-input-ip4");
+ ASSERT (node);
+ im->esp_decrypt_node_index = next_node->index;
+ im->esp_decrypt_next_index =
+ vlib_node_add_next (vm, node->index, next_node->index);
+
+ im->cb.check_support_cb = dpdk_ipsec_check_support;
+ im->cb.add_del_sa_sess_cb = add_del_sa_sess;
+
+ if (vec_len (vlib_mains) == 0)
+ vlib_node_set_state (&vlib_global_main, dpdk_crypto_input_node.index,
+ VLIB_NODE_STATE_POLLING);
+ else
+ for (i = 1; i < tm->n_vlib_mains; i++)
+ vlib_node_set_state (vlib_mains[i], dpdk_crypto_input_node.index,
+ VLIB_NODE_STATE_POLLING);
+
+ /* TODO cryptodev counters */
+
+ return 0;
+
+error:
+ ;
+ crypto_worker_main_t *cwm;
+ struct rte_mempool **mp;
+ /* *INDENT-OFF* */
+ vec_foreach (cwm, dcm->workers_main)
+ hash_free (cwm->algo_qp_map);
+
+ vec_foreach (mp, dcm->cop_pools)
+ {
+ if (mp)
+ rte_mempool_free (mp[0]);
+ }
+ /* *INDENT-ON* */
+ vec_free (dcm->workers_main);
+ vec_free (dcm->cop_pools);
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (dpdk_ipsec_process_node,static) = {
+ .function = dpdk_ipsec_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "dpdk-ipsec-process",
+ .process_log2_n_stack_bytes = 17,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */