From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 19 Dec 2016 23:05:39 +0100 Subject: Reorganize source tree to use single autotools instance Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion --- src/vnet/feature/feature.c | 463 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 463 insertions(+) create mode 100644 src/vnet/feature/feature.c (limited to 'src/vnet/feature/feature.c') diff --git a/src/vnet/feature/feature.c b/src/vnet/feature/feature.c new file mode 100644 index 00000000..032fe784 --- /dev/null +++ b/src/vnet/feature/feature.c @@ -0,0 +1,463 @@ +/* + * Copyright (c) 2016 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. + */ + +#include + +vnet_feature_main_t feature_main; + +static clib_error_t * +vnet_feature_init (vlib_main_t * vm) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_registration_t *freg; + vnet_feature_arc_registration_t *areg; + u32 arc_index = 0; + + fm->arc_index_by_name = hash_create_string (0, sizeof (uword)); + areg = fm->next_arc; + + /* process feature arc registrations */ + while (areg) + { + char *s; + int i = 0; + areg->feature_arc_index = arc_index; + if (areg->arc_index_ptr) + *areg->arc_index_ptr = arc_index; + hash_set_mem (fm->arc_index_by_name, areg->arc_name, + pointer_to_uword (areg)); + + /* process start nodes */ + while ((s = areg->start_nodes[i])) + { + i++; + } + areg->n_start_nodes = i; + + /* next */ + areg = areg->next; + arc_index++; + } + + vec_validate (fm->next_feature_by_arc, arc_index - 1); + vec_validate (fm->feature_nodes, arc_index - 1); + vec_validate (fm->feature_config_mains, arc_index - 1); + vec_validate (fm->next_feature_by_name, arc_index - 1); + vec_validate (fm->sw_if_index_has_features, arc_index - 1); + vec_validate (fm->feature_count_by_sw_if_index, arc_index - 1); + + freg = fm->next_feature; + while (freg) + { + vnet_feature_registration_t *next; + uword *p = hash_get_mem (fm->arc_index_by_name, freg->arc_name); + if (p == 0) + return clib_error_return (0, "Unknown feature arc '%s'", + freg->arc_name); + + areg = uword_to_pointer (p[0], vnet_feature_arc_registration_t *); + arc_index = areg->feature_arc_index; + + next = freg->next; + freg->next = fm->next_feature_by_arc[arc_index]; + fm->next_feature_by_arc[arc_index] = freg; + + /* next */ + freg = next; + } + + areg = fm->next_arc; + while (areg) + { + clib_error_t *error; + vnet_feature_config_main_t *cm; + vnet_config_main_t *vcm; + + arc_index = areg->feature_arc_index; + cm = &fm->feature_config_mains[arc_index]; + vcm = &cm->config_main; + if ((error = vnet_feature_arc_init (vm, vcm, + areg->start_nodes, + areg->n_start_nodes, + fm->next_feature_by_arc[arc_index], + &fm->feature_nodes[arc_index]))) + { + return error; + } + + fm->next_feature_by_name[arc_index] = + hash_create_string (0, sizeof (uword)); + freg = fm->next_feature_by_arc[arc_index]; + + while (freg) + { + hash_set_mem (fm->next_feature_by_name[arc_index], + freg->node_name, pointer_to_uword (freg)); + freg = freg->next; + } + + cm->end_feature_index = + vnet_get_feature_index (arc_index, areg->end_node); + + /* next */ + areg = areg->next; + arc_index++; + } + + return 0; +} + +VLIB_INIT_FUNCTION (vnet_feature_init); + +u8 +vnet_get_feature_arc_index (const char *s) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_arc_registration_t *reg; + uword *p; + + p = hash_get_mem (fm->arc_index_by_name, s); + if (p == 0) + return ~0; + + reg = uword_to_pointer (p[0], vnet_feature_arc_registration_t *); + return reg->feature_arc_index; +} + +vnet_feature_registration_t * +vnet_get_feature_reg (const char *arc_name, const char *node_name) +{ + u8 arc_index; + + arc_index = vnet_get_feature_arc_index (arc_name); + if (arc_index == (u8) ~ 0) + return 0; + + vnet_feature_main_t *fm = &feature_main; + vnet_feature_registration_t *reg; + uword *p; + + p = hash_get_mem (fm->next_feature_by_name[arc_index], node_name); + if (p == 0) + return 0; + + reg = uword_to_pointer (p[0], vnet_feature_registration_t *); + return reg; +} + +u32 +vnet_get_feature_index (u8 arc, const char *s) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_registration_t *reg; + uword *p; + + if (s == 0) + return ~0; + + p = hash_get_mem (fm->next_feature_by_name[arc], s); + if (p == 0) + return ~0; + + reg = uword_to_pointer (p[0], vnet_feature_registration_t *); + return reg->feature_index; +} + +int +vnet_feature_enable_disable_with_index (u8 arc_index, u32 feature_index, + u32 sw_if_index, int enable_disable, + void *feature_config, + u32 n_feature_config_bytes) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_config_main_t *cm; + i16 feature_count; + int is_first_or_last; + u32 ci; + + if (arc_index == (u8) ~ 0) + return VNET_API_ERROR_INVALID_VALUE; + + if (feature_index == ~0) + return VNET_API_ERROR_INVALID_VALUE_2; + + cm = &fm->feature_config_mains[arc_index]; + vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0); + ci = cm->config_index_by_sw_if_index[sw_if_index]; + + vec_validate (fm->feature_count_by_sw_if_index[arc_index], sw_if_index); + feature_count = fm->feature_count_by_sw_if_index[arc_index][sw_if_index]; + + if (!enable_disable && feature_count < 1) + return 0; + + ci = (enable_disable + ? vnet_config_add_feature + : vnet_config_del_feature) + (vlib_get_main (), &cm->config_main, ci, feature_index, feature_config, + n_feature_config_bytes); + cm->config_index_by_sw_if_index[sw_if_index] = ci; + + /* update feature count */ + enable_disable = (enable_disable > 0); + feature_count += enable_disable ? 1 : -1; + is_first_or_last = (feature_count == enable_disable); + ASSERT (feature_count >= 0); + + if (is_first_or_last && cm->end_feature_index != ~0) + { + /*register end node */ + ci = (enable_disable + ? vnet_config_add_feature + : vnet_config_del_feature) + (vlib_get_main (), &cm->config_main, ci, cm->end_feature_index, 0, 0); + cm->config_index_by_sw_if_index[sw_if_index] = ci; + } + + fm->sw_if_index_has_features[arc_index] = + clib_bitmap_set (fm->sw_if_index_has_features[arc_index], sw_if_index, + (feature_count > 0)); + + fm->feature_count_by_sw_if_index[arc_index][sw_if_index] = feature_count; + return 0; +} + +int +vnet_feature_enable_disable (const char *arc_name, const char *node_name, + u32 sw_if_index, int enable_disable, + void *feature_config, u32 n_feature_config_bytes) +{ + u32 feature_index; + u8 arc_index; + + arc_index = vnet_get_feature_arc_index (arc_name); + + if (arc_index == (u8) ~ 0) + return VNET_API_ERROR_INVALID_VALUE; + + feature_index = vnet_get_feature_index (arc_index, node_name); + + return vnet_feature_enable_disable_with_index (arc_index, feature_index, + sw_if_index, enable_disable, + feature_config, + n_feature_config_bytes); +} + + +/** Display the set of available driver features. + Useful for verifying that expected features are present +*/ + +static clib_error_t * +show_features_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vnet_feature_main_t *fm = &feature_main; + vnet_feature_arc_registration_t *areg; + vnet_feature_registration_t *freg; + + vlib_cli_output (vm, "Available feature paths"); + + areg = fm->next_arc; + while (areg) + { + vlib_cli_output (vm, "%s:", areg->arc_name); + freg = fm->next_feature_by_arc[areg->feature_arc_index]; + while (freg) + { + vlib_cli_output (vm, " %s\n", freg->node_name); + freg = freg->next; + } + + + /* next */ + areg = areg->next; + } + + return 0; +} + +/*? + * Display the set of available driver features + * + * @cliexpar + * Example: + * @cliexcmd{show ip features} + * @cliexend + * @endparblock +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_features_command, static) = { + .path = "show features", + .short_help = "show features", + .function = show_features_command_fn, +}; +/* *INDENT-ON* */ + +/** Display the set of driver features configured on a specific interface + * Called by "show interface" handler + */ + +void +vnet_interface_features_show (vlib_main_t * vm, u32 sw_if_index) +{ + vnet_feature_main_t *fm = &feature_main; + u32 node_index, current_config_index; + u16 feature_arc; + vnet_feature_config_main_t *cm = fm->feature_config_mains; + vnet_feature_arc_registration_t *areg; + vnet_config_main_t *vcm; + vnet_config_t *cfg; + u32 cfg_index; + vnet_config_feature_t *feat; + vlib_node_t *n; + int i; + + vlib_cli_output (vm, "Driver feature paths configured on %U...", + format_vnet_sw_if_index_name, + vnet_get_main (), sw_if_index); + + areg = fm->next_arc; + while (areg) + { + feature_arc = areg->feature_arc_index; + vcm = &(cm[feature_arc].config_main); + + vlib_cli_output (vm, "\n%s:", areg->arc_name); + areg = areg->next; + + if (NULL == cm[feature_arc].config_index_by_sw_if_index || + vec_len (cm[feature_arc].config_index_by_sw_if_index) <= + sw_if_index) + { + vlib_cli_output (vm, " none configured"); + continue; + } + + current_config_index = + vec_elt (cm[feature_arc].config_index_by_sw_if_index, sw_if_index); + + if (current_config_index == ~0) + { + vlib_cli_output (vm, " none configured"); + continue; + } + + ASSERT (current_config_index + < vec_len (vcm->config_pool_index_by_user_index)); + + cfg_index = vcm->config_pool_index_by_user_index[current_config_index]; + cfg = pool_elt_at_index (vcm->config_pool, cfg_index); + + for (i = 0; i < vec_len (cfg->features); i++) + { + feat = cfg->features + i; + node_index = feat->node_index; + n = vlib_get_node (vm, node_index); + vlib_cli_output (vm, " %v", n->name); + } + } +} + +static clib_error_t * +set_interface_features_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + unformat_input_t _line_input, *line_input = &_line_input; + clib_error_t *error = 0; + + u8 *arc_name = 0; + u8 *feature_name = 0; + u32 sw_if_index = ~0; + u8 enable = 1; + + /* Get a line of input. */ + if (!unformat_user (input, unformat_line_input, line_input)) + goto done; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat + (line_input, "%U %v", unformat_vnet_sw_interface, vnm, &sw_if_index, + &feature_name)) + ; + else if (unformat (line_input, "arc %v", &arc_name)) + ; + else if (unformat (line_input, "disable")) + enable = 0; + else + { + error = unformat_parse_error (line_input); + goto done; + } + } + + if (sw_if_index == ~0) + { + error = clib_error_return (0, "Interface not specified..."); + goto done; + } + + vec_add1 (arc_name, 0); + vec_add1 (feature_name, 0); + + vnet_feature_registration_t *reg; + reg = + vnet_get_feature_reg ((const char *) arc_name, + (const char *) feature_name); + if (reg == 0) + { + error = clib_error_return (0, "Unknown feature..."); + goto done; + } + if (reg->enable_disable_cb) + error = reg->enable_disable_cb (sw_if_index, enable); + if (!error) + vnet_feature_enable_disable ((const char *) arc_name, + (const char *) feature_name, sw_if_index, + enable, 0, 0); + +done: + vec_free (feature_name); + vec_free (arc_name); + return error; +} + +/*? + * Set feature for given interface + * + * @cliexpar + * Example: + * @cliexcmd{set interface feature GigabitEthernet2/0/0 ip4_flow_classify arc ip4_unicast} + * @cliexend + * @endparblock +?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (set_interface_feature_command, static) = { + .path = "set interface feature", + .short_help = "set interface feature arc ", + .function = set_interface_features_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg