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authorFlorin Coras <fcoras@cisco.com>2018-07-12 14:48:06 -0700
committerDamjan Marion <dmarion@me.com>2018-07-17 09:02:17 +0000
commit52207f1b7b60cb0784d5241f0a4d40eef531c67e (patch)
treeb83a1f01bd08872a2ae27e17f2fd0ddeb3f571b6 /src/svm
parent3c2fed5145d9e40a9ecd178c2866c813eddc6203 (diff)
session: send ctrl msg over mq
Change-Id: I242056bc46ddb671064665916b2687860292dcb2 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/svm')
-rw-r--r--src/svm/message_queue.c3
-rw-r--r--src/svm/message_queue.h2
2 files changed, 3 insertions, 2 deletions
diff --git a/src/svm/message_queue.c b/src/svm/message_queue.c
index 89411143c12..77c15ed4654 100644
--- a/src/svm/message_queue.c
+++ b/src/svm/message_queue.c
@@ -200,10 +200,11 @@ svm_msg_q_add (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, int nowait)
}
void
-svm_msg_q_add_w_lock (svm_msg_q_t * mq, svm_msg_q_msg_t * msg)
+svm_msg_q_add_and_unlock (svm_msg_q_t * mq, svm_msg_q_msg_t * msg)
{
ASSERT (svm_msq_q_msg_is_valid (mq, msg));
svm_queue_add_raw (mq->q, (u8 *) msg);
+ svm_msg_q_unlock (mq);
}
int
diff --git a/src/svm/message_queue.h b/src/svm/message_queue.h
index 708a03d716e..5ff0c4be103 100644
--- a/src/svm/message_queue.h
+++ b/src/svm/message_queue.h
@@ -163,7 +163,7 @@ int svm_msg_q_add (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, int nowait);
* @param msg message (pointer to ring position) to be enqueued
* @return success status
*/
-void svm_msg_q_add_w_lock (svm_msg_q_t * mq, svm_msg_q_msg_t * msg);
+void svm_msg_q_add_and_unlock (svm_msg_q_t * mq, svm_msg_q_msg_t * msg);
/**
* Consumer dequeue one message from queue
n198' href='#n198'>198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 
/*
 *------------------------------------------------------------------
 * 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/buffer.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")		\
  _(AUTH_FAILED, "Crypto verification failed")	      \
  _(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 _
};

extern vlib_node_registration_t dpdk_crypto_input_node;

typedef struct
{
  /* dev id of this cryptodev */
  u16 dev_id;
  u16 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, "cryptodev-id %d next-index %d", t->dev_id, t->next_index);

  return s;
}

static_always_inline void
dpdk_crypto_input_check_op (vlib_main_t * vm, vlib_node_runtime_t * node,
			    struct rte_crypto_op *op0, u16 * next)
{
  if (PREDICT_FALSE (op0->status != RTE_CRYPTO_OP_STATUS_SUCCESS))
    {
      next[0] = DPDK_CRYPTO_INPUT_NEXT_DROP;
      vlib_node_increment_counter (vm,
				   node->node_index,
				   DPDK_CRYPTO_INPUT_ERROR_STATUS, 1);
      /* if auth failed */
      if (op0->status == RTE_CRYPTO_OP_STATUS_AUTH_FAILED)
	vlib_node_increment_counter (vm,
				     node->node_index,
				     DPDK_CRYPTO_INPUT_ERROR_AUTH_FAILED, 1);
    }
}

always_inline void
dpdk_crypto_input_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
			 u8 dev_id, u32 * bis, u16 * nexts, u32 n_deq)
{
  u32 n_left, n_trace;

  if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
    {
      n_left = n_deq;

      while (n_trace && n_left)
	{
	  vlib_buffer_t *b0;
	  u16 next;
	  u32 bi;

	  bi = bis[0];
	  next = nexts[0];

	  b0 = vlib_get_buffer (vm, bi);

	  vlib_trace_buffer (vm, node, next, b0, /* follow_chain */ 0);

	  dpdk_crypto_input_trace_t *tr =
	    vlib_add_trace (vm, node, b0, sizeof (*tr));
	  tr->dev_id = dev_id;
	  tr->next_index = next;

	  n_trace--;
	  n_left--;
	  nexts++;
	  bis++;
	}
      vlib_set_trace_count (vm, node, n_trace);
    }
}

static_always_inline u32
dpdk_crypto_dequeue (vlib_main_t * vm, crypto_worker_main_t * cwm,
		     vlib_node_runtime_t * node, crypto_resource_t * res)
{
  u8 numa = rte_socket_id ();
  u32 n_ops, total_n_deq, n_deq[2];
  u32 bis[VLIB_FRAME_SIZE], *bi;
  u16 nexts[VLIB_FRAME_SIZE], *next;
  struct rte_crypto_op **ops;

  n_deq[0] = 0;
  n_deq[1] = 0;
  bi = bis;
  next = nexts;
  ops = cwm->ops;

  n_ops = total_n_deq = rte_cryptodev_dequeue_burst (res->dev_id,
						     res->qp_id,
						     ops, VLIB_FRAME_SIZE);
  /* no op dequeued, do not proceed */
  if (n_ops == 0)
    return 0;

  while (n_ops >= 4)
    {
      struct rte_crypto_op *op0, *op1, *op2, *op3;

      /* Prefetch next iteration. */
      if (n_ops >= 8)
	{
	  CLIB_PREFETCH (ops[4], CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (ops[5], CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (ops[6], CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (ops[7], CLIB_CACHE_LINE_BYTES, LOAD);

	  CLIB_PREFETCH (crypto_op_get_priv (ops[4]),
			 CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (crypto_op_get_priv (ops[5]),
			 CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (crypto_op_get_priv (ops[6]),
			 CLIB_CACHE_LINE_BYTES, LOAD);
	  CLIB_PREFETCH (crypto_op_get_priv (ops[7]),
			 CLIB_CACHE_LINE_BYTES, LOAD);
	}

      op0 = ops[0];
      op1 = ops[1];
      op2 = ops[2];
      op3 = ops[3];

      next[0] = crypto_op_get_priv (op0)->next;
      next[1] = crypto_op_get_priv (op1)->next;
      next[2] = crypto_op_get_priv (op2)->next;
      next[3] = crypto_op_get_priv (op3)->next;

      bi[0] = crypto_op_get_priv (op0)->bi;
      bi[1] = crypto_op_get_priv (op1)->bi;
      bi[2] = crypto_op_get_priv (op2)->bi;
      bi[3] = crypto_op_get_priv (op3)->bi;

      n_deq[crypto_op_get_priv (op0)->encrypt] += 1;
      n_deq[crypto_op_get_priv (op1)->encrypt] += 1;
      n_deq[crypto_op_get_priv (op2)->encrypt] += 1;
      n_deq[crypto_op_get_priv (op3)->encrypt] += 1;

      dpdk_crypto_input_check_op (vm, node, op0, next + 0);
      dpdk_crypto_input_check_op (vm, node, op1, next + 1);
      dpdk_crypto_input_check_op (vm, node, op2, next + 2);
      dpdk_crypto_input_check_op (vm, node, op3, next + 3);

      op0->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
      op1->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
      op2->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
      op3->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;

      /* next */
      next += 4;
      n_ops -= 4;
      ops += 4;
      bi += 4;
    }
  while (n_ops > 0)
    {
      struct rte_crypto_op *op0;

      op0 = ops[0];

      next[0] = crypto_op_get_priv (op0)->next;
      bi[0] = crypto_op_get_priv (op0)->bi;

      n_deq[crypto_op_get_priv (op0)->encrypt] += 1;

      dpdk_crypto_input_check_op (vm, node, op0, next + 0);

      op0->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;

      /* next */
      next += 1;
      n_ops -= 1;
      ops += 1;
      bi += 1;
    }

  vlib_node_increment_counter (vm, node->node_index,
			       DPDK_CRYPTO_INPUT_ERROR_DQ_COPS, total_n_deq);

  res->inflights[0] -= n_deq[0];
  res->inflights[1] -= n_deq[1];

  vlib_buffer_enqueue_to_next (vm, node, bis, nexts, total_n_deq);

  dpdk_crypto_input_trace (vm, node, res->dev_id, bis, nexts, total_n_deq);

  crypto_free_ops (numa, cwm->ops, total_n_deq);

  return total_n_deq;
}

static_always_inline uword
dpdk_crypto_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
			  vlib_frame_t * frame)
{
  dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
  crypto_worker_main_t *cwm = &dcm->workers_main[vm->thread_index];
  crypto_resource_t *res;
  u32 n_deq = 0;
  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]);
      u32 inflights = res->inflights[0] + res->inflights[1];

      if (inflights)
	n_deq += dpdk_crypto_dequeue (vm, cwm, node, res);

      inflights = res->inflights[0] + res->inflights[1];
      if (PREDICT_FALSE (res->remove && !(inflights)))
	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);
    }

  return n_deq;
}

VLIB_NODE_FN (dpdk_crypto_input_node) (vlib_main_t * vm,
				       vlib_node_runtime_t * node,
				       vlib_frame_t * from_frame)
{
  return dpdk_crypto_input_inline (vm, node, from_frame);
}

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dpdk_crypto_input_node) =
{
  .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* */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */