diff options
Diffstat (limited to 'src/plugins/dpdk/ipsec/crypto_node.c')
| -rw-r--r-- | src/plugins/dpdk/ipsec/crypto_node.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/plugins/dpdk/ipsec/crypto_node.c b/src/plugins/dpdk/ipsec/crypto_node.c new file mode 100644 index 00000000..a3c45902 --- /dev/null +++ b/src/plugins/dpdk/ipsec/crypto_node.c @@ -0,0 +1,215 @@ +/* + *------------------------------------------------------------------ + * crypto_node.c - DPDK Cryptodev input node + * + * 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 <vlib/vlib.h> +#include <vnet/ip/ip.h> +#include <vnet/ethernet/ethernet.h> +#include <vnet/ipsec/ipsec.h> + +#include <dpdk/device/dpdk.h> +#include <dpdk/device/dpdk_priv.h> +#include <dpdk/ipsec/ipsec.h> + +#define foreach_dpdk_crypto_input_next \ + _(DROP, "error-drop") \ + _(ENCRYPT_POST, "dpdk-esp-encrypt-post") \ + _(DECRYPT_POST, "dpdk-esp-decrypt-post") + +typedef enum +{ +#define _(f,s) DPDK_CRYPTO_INPUT_NEXT_##f, + foreach_dpdk_crypto_input_next +#undef _ + DPDK_CRYPTO_INPUT_N_NEXT, +} dpdk_crypto_input_next_t; + +#define foreach_dpdk_crypto_input_error \ + _(DQ_COPS, "Crypto ops dequeued") \ + _(COP_FAILED, "Crypto op failed") + +typedef enum +{ +#define _(f,s) DPDK_CRYPTO_INPUT_ERROR_##f, + foreach_dpdk_crypto_input_error +#undef _ + DPDK_CRYPTO_INPUT_N_ERROR, +} dpdk_crypto_input_error_t; + +static char *dpdk_crypto_input_error_strings[] = { +#define _(n, s) s, + foreach_dpdk_crypto_input_error +#undef _ +}; + +vlib_node_registration_t dpdk_crypto_input_node; + +typedef struct +{ + u32 cdev; + u32 qp; + u32 status; + u32 sa_idx; + u32 next_index; +} dpdk_crypto_input_trace_t; + +static u8 * +format_dpdk_crypto_input_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + dpdk_crypto_input_trace_t *t = va_arg (*args, dpdk_crypto_input_trace_t *); + + s = format (s, "dpdk_crypto: cryptodev-id %u queue-pair %u next-index %d", + t->cdev, t->qp, t->next_index); + + s = format (s, " status %u sa-idx %u\n", t->status, t->sa_idx); + + return s; +} + +static_always_inline u32 +dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node, + crypto_qp_data_t * qpd) +{ + u32 n_deq, *to_next = 0, next_index, n_cops, def_next_index; + struct rte_crypto_op **cops = qpd->cops; + + if (qpd->inflights == 0) + return 0; + + if (qpd->is_outbound) + def_next_index = DPDK_CRYPTO_INPUT_NEXT_ENCRYPT_POST; + else + def_next_index = DPDK_CRYPTO_INPUT_NEXT_DECRYPT_POST; + + n_cops = rte_cryptodev_dequeue_burst (qpd->dev_id, qpd->qp_id, + cops, VLIB_FRAME_SIZE); + n_deq = n_cops; + next_index = def_next_index; + + qpd->inflights -= n_cops; + ASSERT (qpd->inflights >= 0); + + while (n_cops > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_cops > 0 && n_left_to_next > 0) + { + u32 bi0, next0; + vlib_buffer_t *b0 = 0; + struct rte_crypto_op *cop; + struct rte_crypto_sym_op *sym_cop; + + cop = cops[0]; + cops += 1; + n_cops -= 1; + n_left_to_next -= 1; + + next0 = def_next_index; + + if (PREDICT_FALSE (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS)) + { + next0 = DPDK_CRYPTO_INPUT_NEXT_DROP; + vlib_node_increment_counter (vm, dpdk_crypto_input_node.index, + DPDK_CRYPTO_INPUT_ERROR_COP_FAILED, + 1); + } + cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; + + sym_cop = (struct rte_crypto_sym_op *) (cop + 1); + b0 = vlib_buffer_from_rte_mbuf (sym_cop->m_src); + bi0 = vlib_get_buffer_index (vm, b0); + + to_next[0] = bi0; + to_next += 1; + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + vlib_trace_next_frame (vm, node, next0); + dpdk_crypto_input_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->cdev = qpd->dev_id; + tr->qp = qpd->qp_id; + tr->status = cop->status; + tr->next_index = next0; + tr->sa_idx = vnet_buffer (b0)->ipsec.sad_index; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + crypto_free_cop (qpd, qpd->cops, n_deq); + + vlib_node_increment_counter (vm, dpdk_crypto_input_node.index, + DPDK_CRYPTO_INPUT_ERROR_DQ_COPS, n_deq); + return n_deq; +} + +static uword +dpdk_crypto_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 thread_index = vlib_get_thread_index (); + dpdk_crypto_main_t *dcm = &dpdk_crypto_main; + crypto_worker_main_t *cwm = &dcm->workers_main[thread_index]; + crypto_qp_data_t *qpd; + u32 n_deq = 0; + + /* *INDENT-OFF* */ + vec_foreach (qpd, cwm->qp_data) + n_deq += dpdk_crypto_dequeue(vm, node, qpd); + /* *INDENT-ON* */ + + return n_deq; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (dpdk_crypto_input_node) = +{ + .function = dpdk_crypto_input_fn, + .name = "dpdk-crypto-input", + .format_trace = format_dpdk_crypto_input_trace, + .type = VLIB_NODE_TYPE_INPUT, + .state = VLIB_NODE_STATE_DISABLED, + .n_errors = DPDK_CRYPTO_INPUT_N_ERROR, + .error_strings = dpdk_crypto_input_error_strings, + .n_next_nodes = DPDK_CRYPTO_INPUT_N_NEXT, + .next_nodes = + { +#define _(s,n) [DPDK_CRYPTO_INPUT_NEXT_##s] = n, + foreach_dpdk_crypto_input_next +#undef _ + }, +}; +/* *INDENT-ON* */ + +VLIB_NODE_FUNCTION_MULTIARCH (dpdk_crypto_input_node, dpdk_crypto_input_fn) +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |