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authorMatthew Smith <mgsmith@netgate.com>2018-09-18 10:52:58 -0500
committerMatthew Smith <mgsmith@netgate.com>2018-09-18 11:33:30 -0500
commitc15d148f0f636cb0dabe55a90ddae95f406073c1 (patch)
tree70a7f611e8f047da6201716cc10188d73da2d98e /docs/usecases/Routing.rst
parent2f459d728b5cbd6d5a945a440afd7ef110e82505 (diff)
disable scatter/gather for ENA with DPDK 18.08
The scatter/gather rxmode flag was set for ENA when building against DPDK >= 18.08. ENA does not support this, so disable it. It looks like enabling it was a copy/paste error. Also, after offloads are adjusted based on whether "no-multi-seg" is set, those configurations are overwritten by copying port_conf_template over the port config. That should only happen for versions of DPDK older than 18.08 because 18.08 and newer make changes directly on the port config instead of making changes to the template. Make the clib_memcpy() conditional on the DPDK version being less than 18.08. After doing so, compiler errors complain about port_conf_template being declared but not used, so make it's declaration conditional. Change-Id: If81980d71c379a565b51dd700b953f8c811a8703 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Diffstat (limited to 'docs/usecases/Routing.rst')
0 files changed, 0 insertions, 0 deletions
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/*
 * Copyright (c) 2015 Cisco 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.
 */
/*
 * config.h: feature configuration
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef included_vnet_config_h
#define included_vnet_config_h

#include <vlib/vlib.h>
#include <vppinfra/heap.h>

typedef struct
{
  /* Features are prioritized by index.  Smaller indices get
     performed first. */
  u32 feature_index;

  /* VLIB node which performs feature. */
  u32 node_index;

  /* Next index relative to previous node or main node. */
  u32 next_index;

  /* Opaque per feature configuration data. */
  u32 *feature_config;
} vnet_config_feature_t;

always_inline void
vnet_config_feature_free (vnet_config_feature_t * f)
{
  vec_free (f->feature_config);
}

typedef struct
{
  /* Sorted vector of features for this configuration. */
  vnet_config_feature_t *features;

  /* Config string as vector for hashing. */
  u32 *config_string_vector;

  /* Config string including all next indices and feature data as a vector. */
  u32 config_string_heap_index, config_string_heap_handle;

  /* Index in main pool. */
  u32 index;

  /* Number of interfaces/traffic classes that reference this config. */
  u32 reference_count;
} vnet_config_t;

typedef struct
{
  /* Pool of configs.  Index 0 is always null config and is never deleted. */
  vnet_config_t *config_pool;

  /* Hash table mapping vector config string to config pool index. */
  uword *config_string_hash;

  /* Global heap of configuration data. */
  u32 *config_string_heap;

  /* Node index which starts/ends feature processing. */
  u32 *start_node_indices, *end_node_indices_by_user_index,
    default_end_node_index;

  /* Interior feature processing nodes (not including start and end nodes). */
  u32 *node_index_by_feature_index;

  /* vnet_config pool index by user index */
  u32 *config_pool_index_by_user_index;

  /* Temporary vector for holding config strings.  Used to avoid continually
     allocating vectors. */
  u32 *config_string_temp;
} vnet_config_main_t;

always_inline void
vnet_config_free (vnet_config_main_t * cm, vnet_config_t * c)
{
  vnet_config_feature_t *f;
  vec_foreach (f, c->features) vnet_config_feature_free (f);
  vec_free (c->features);
  heap_dealloc (cm->config_string_heap, c->config_string_heap_handle);
  vec_free (c->config_string_vector);
}

always_inline void *
vnet_get_config_data (vnet_config_main_t * cm,
		      u32 * config_index, u32 * next_index, u32 n_data_bytes)
{
  u32 i, n, *d;

  i = *config_index;

  d = heap_elt_at_index (cm->config_string_heap, i);

  n = round_pow2 (n_data_bytes, sizeof (d[0])) / sizeof (d[0]);

  /* Last 32 bits are next index. */
  *next_index = d[n];

  /* Advance config index to next config. */
  *config_index = (i + n + 1);

  /* Return config data to user for this feature. */
  return (void *) d;
}

void vnet_config_init (vlib_main_t * vm,
		       vnet_config_main_t * cm,
		       char *start_node_names[],
		       int n_start_node_names,
		       char *feature_node_names[], int n_feature_node_names);

void vnet_config_del (vnet_config_main_t * cm, u32 config_id);

/* Calls to add/delete features from configurations. */
u32 vnet_config_add_feature (vlib_main_t * vm,
			     vnet_config_main_t * cm,
			     u32 config_id,
			     u32 feature_index,
			     void *feature_config,
			     u32 n_feature_config_bytes);

u32 vnet_config_del_feature (vlib_main_t * vm,
			     vnet_config_main_t * cm,
			     u32 config_id,
			     u32 feature_index,
			     void *feature_config,
			     u32 n_feature_config_bytes);

u32 vnet_config_modify_end_node (vlib_main_t * vm,
				 vnet_config_main_t * cm,
				 u32 config_string_heap_index,
				 u32 end_node_index);

u8 *vnet_config_format_features (vlib_main_t * vm,
				 vnet_config_main_t * cm,
				 u32 config_index, u8 * s);

#endif /* included_vnet_config_h */

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