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/*
*------------------------------------------------------------------
* crypto_node.c - DPDK Cryptodev input node
*
* 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 opy 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_error \
_(DQ_COPS, "Crypto ops dequeued") \
_(STATUS, "Crypto operation 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 status;
} dpdk_crypto_input_trace_t;
#define foreach_cryptodev_status \
_(SUCCESS, "success") \
_(NOT_PROCESSED, "not processed") \
_(AUTH_FAILED, "auth failed") \
_(INVALID_SESSION, "invalid session") \
_(INVALID_ARGS, "invalid arguments") \
_(ERROR, "error")
static u8 *
format_cryptodev_status (u8 * s, va_list * args)
{
u32 status = va_arg (*args, u32);
i8 *str = 0;
switch (status)
{
#define _(x, z) case RTE_CRYPTO_OP_STATUS_##x: str = z; break;
foreach_cryptodev_status
#undef _
}
s = format (s, "%s", str);
return s;
}
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, "status: %U", format_cryptodev_status, t->status);
return s;
}
static_always_inline u32
dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
crypto_resource_t * res, u8 outbound)
{
u32 n_deq, total_n_deq = 0, *to_next = 0, n_ops, next_index;
u32 thread_idx = vlib_get_thread_index ();
dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
u8 numa = rte_socket_id ();
crypto_worker_main_t *cwm =
vec_elt_at_index (dcm->workers_main, thread_idx);
struct rte_crypto_op **ops;
next_index = node->cached_next_index;
do
{
ops = cwm->ops;
n_ops = rte_cryptodev_dequeue_burst (res->dev_id,
res->qp_id + outbound,
ops, VLIB_FRAME_SIZE);
res->inflights[outbound] -= n_ops;
ASSERT (res->inflights >= 0);
n_deq = n_ops;
total_n_deq += n_ops;
while (n_ops > 0)
{
u32 n_left_to_next;
vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_ops > 0 && n_left_to_next > 0)
{
u32 bi0, next0;
vlib_buffer_t *b0 = 0;
struct rte_crypto_op *op;
op = ops[0];
ops += 1;
n_ops -= 1;
n_left_to_next -= 1;
dpdk_op_priv_t *priv = crypto_op_get_priv (op);
next0 = priv->next;
if (PREDICT_FALSE (op->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_STATUS,
1);
}
/* XXX store bi0 and next0 in op private? */
b0 = vlib_buffer_from_rte_mbuf (op->sym[0].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->status = op->status;
}
op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
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_ops (numa, cwm->ops, n_deq);
}
while (n_deq == VLIB_FRAME_SIZE && res->inflights[outbound]);
vlib_node_increment_counter (vm, dpdk_crypto_input_node.index,
DPDK_CRYPTO_INPUT_ERROR_DQ_COPS, total_n_deq);
return total_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_resource_t *res;
u32 n_deq = 0;
u8 outbound;
u16 *remove = NULL, *res_idx;
word i;
/* *INDENT-OFF* */
vec_foreach (res_idx, cwm->resource_idx)
{
res = vec_elt_at_index (dcm->resource, res_idx[0]);
outbound = 0;
if (res->inflights[outbound])
n_deq += dpdk_crypto_dequeue (vm, node, res, outbound);
outbound = 1;
if (res->inflights[outbound])
n_deq += dpdk_crypto_dequeue (vm, node, res, outbound);
if (unlikely(res->remove && !(res->inflights[0] || res->inflights[1])))
vec_add1 (remove, res_idx[0]);
}
/* *INDENT-ON* */
/* TODO removal on master thread? */
if (PREDICT_FALSE (remove != NULL))
{
/* *INDENT-OFF* */
vec_foreach (res_idx, remove)
{
i = vec_search (cwm->resource_idx, res_idx[0]);
vec_del1 (cwm->resource_idx, i);
res = vec_elt_at_index (dcm->resource, res_idx[0]);
res->thread_idx = (u16) ~0;
res->remove = 0;
i = vec_search (dcm->dev[res->dev_id].used_resources, res_idx[0]);
ASSERT (i != (u16) ~0);
vec_del1 (dcm->dev[res->dev_id].used_resources, i);
vec_add1 (dcm->dev[res->dev_id].free_resources, res_idx[0]);
}
/* *INDENT-ON* */
vec_free (remove);
}
/* TODO Clear all sessions in device */
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:
*/
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