From 15c18e3e40d3bf754e5b6969c7478ad9f1d5e95b Mon Sep 17 00:00:00 2001 From: Brian Russell Date: Wed, 17 Feb 2021 15:45:56 +0000 Subject: policer: add policing as device-input feature Add input per-interface policing as an input feature, repurposing vnet_policer_inline which formermly allowed input policing to be configured via a CLI. Type: improvement Signed-off-by: Brian Russell Change-Id: I2fd00e964ae358a05e507c844f5476372124fae1 --- src/vnet/policer/node_funcs.c | 241 ++++-------------------------------------- src/vnet/policer/policer.c | 3 - src/vnet/policer/policer.h | 8 -- 3 files changed, 19 insertions(+), 233 deletions(-) diff --git a/src/vnet/policer/node_funcs.c b/src/vnet/policer/node_funcs.c index a2c6884aa03..30e5c505364 100644 --- a/src/vnet/policer/node_funcs.c +++ b/src/vnet/policer/node_funcs.c @@ -67,9 +67,8 @@ static char *vnet_policer_error_strings[] = { }; static inline uword -vnet_policer_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, vnet_policer_index_t which) +vnet_policer_inline (vlib_main_t *vm, vlib_node_runtime_t *node, + vlib_frame_t *frame) { u32 n_left_from, *from, *to_next; vnet_policer_next_t next_index; @@ -122,33 +121,10 @@ vnet_policer_inline (vlib_main_t * vm, b1 = vlib_get_buffer (vm, bi1); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - next0 = VNET_POLICER_NEXT_TRANSMIT; - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - next1 = VNET_POLICER_NEXT_TRANSMIT; - - if (which == VNET_POLICER_INDEX_BY_SW_IF_INDEX) - { - pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; - pi1 = pm->policer_index_by_sw_if_index[sw_if_index1]; - } - - if (which == VNET_POLICER_INDEX_BY_OPAQUE) - { - pi0 = vnet_buffer (b0)->policer.index; - pi1 = vnet_buffer (b1)->policer.index; - } - - if (which == VNET_POLICER_INDEX_BY_EITHER) - { - pi0 = vnet_buffer (b0)->policer.index; - pi0 = (pi0 != ~0) ? pi0 : - pm->policer_index_by_sw_if_index[sw_if_index0]; - pi1 = vnet_buffer (b1)->policer.index; - pi1 = (pi1 != ~0) ? pi1 : - pm->policer_index_by_sw_if_index[sw_if_index1]; - } + pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; + pi1 = pm->policer_index_by_sw_if_index[sw_if_index1]; act0 = vnet_policer_police (vm, b0, pi0, time_in_policer_periods, POLICE_CONFORM /* no chaining */ ); @@ -164,6 +140,7 @@ vnet_policer_inline (vlib_main_t * vm, else /* transmit or mark-and-transmit action */ { transmitted++; + vnet_feature_next (&next0, b0); } if (PREDICT_FALSE (act1 == QOS_ACTION_DROP)) /* drop action */ @@ -174,9 +151,9 @@ vnet_policer_inline (vlib_main_t * vm, else /* transmit or mark-and-transmit action */ { transmitted++; + vnet_feature_next (&next1, b1); } - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) { if (b0->flags & VLIB_BUFFER_IS_TRACED) @@ -220,20 +197,8 @@ vnet_policer_inline (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - next0 = VNET_POLICER_NEXT_TRANSMIT; - if (which == VNET_POLICER_INDEX_BY_SW_IF_INDEX) - pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; - - if (which == VNET_POLICER_INDEX_BY_OPAQUE) - pi0 = vnet_buffer (b0)->policer.index; - - if (which == VNET_POLICER_INDEX_BY_EITHER) - { - pi0 = vnet_buffer (b0)->policer.index; - pi0 = (pi0 != ~0) ? pi0 : - pm->policer_index_by_sw_if_index[sw_if_index0]; - } + pi0 = pm->policer_index_by_sw_if_index[sw_if_index0]; act0 = vnet_policer_police (vm, b0, pi0, time_in_policer_periods, POLICE_CONFORM /* no chaining */ ); @@ -246,6 +211,7 @@ vnet_policer_inline (vlib_main_t * vm, else /* transmit or mark-and-transmit action */ { transmitted++; + vnet_feature_next (&next0, b0); } if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) @@ -272,199 +238,30 @@ vnet_policer_inline (vlib_main_t * vm, return frame->n_vectors; } -VLIB_NODE_FN (policer_by_sw_if_index_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return vnet_policer_inline (vm, node, frame, - VNET_POLICER_INDEX_BY_SW_IF_INDEX); -} - -#ifndef CLIB_MARCH_VARIANT -uword -vnet_policer_by_opaque (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - return vnet_policer_inline (vm, node, frame, VNET_POLICER_INDEX_BY_OPAQUE); -} - -uword -vnet_policer_by_either (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) +VLIB_NODE_FN (policer_input_node) +(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { - return vnet_policer_inline (vm, node, frame, VNET_POLICER_INDEX_BY_EITHER); + return vnet_policer_inline (vm, node, frame); } -void -vnet_policer_node_funcs_reference (void) -{ -} -#endif /* CLIB_MARCH_VARIANT */ - - -#define TEST_CODE 1 - -#ifdef TEST_CODE - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (policer_by_sw_if_index_node) = { - .name = "policer-by-sw-if-index", +VLIB_REGISTER_NODE (policer_input_node) = { + .name = "policer-input", .vector_size = sizeof (u32), .format_trace = format_policer_trace, .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(vnet_policer_error_strings), .error_strings = vnet_policer_error_strings, - .n_next_nodes = VNET_POLICER_N_NEXT, - - /* edit / add dispositions here */ .next_nodes = { - [VNET_POLICER_NEXT_TRANSMIT] = "ethernet-input", - [VNET_POLICER_NEXT_DROP] = "error-drop", - }, + [VNET_POLICER_NEXT_DROP] = "error-drop", + }, }; -/* *INDENT-ON* */ - - -#ifndef CLIB_MARCH_VARIANT -int -test_policer_add_del (u32 rx_sw_if_index, u8 * config_name, int is_add) -{ - vnet_policer_main_t *pm = &vnet_policer_main; - policer_t *template; - policer_t *policer; - vnet_hw_interface_t *rxhi; - uword *p; - - rxhi = vnet_get_sup_hw_interface (pm->vnet_main, rx_sw_if_index); - - /* Make sure caller didn't pass a vlan subif, etc. */ - if (rxhi->sw_if_index != rx_sw_if_index) - return VNET_API_ERROR_INVALID_SW_IF_INDEX; - - if (is_add) - { - - p = hash_get_mem (pm->policer_config_by_name, config_name); - - if (p == 0) - return -2; - - template = pool_elt_at_index (pm->policer_templates, p[0]); - - vnet_hw_interface_rx_redirect_to_node - (pm->vnet_main, rxhi->hw_if_index, policer_by_sw_if_index_node.index); - - pool_get_aligned (pm->policers, policer, CLIB_CACHE_LINE_BYTES); - - policer[0] = template[0]; - - vec_validate (pm->policer_index_by_sw_if_index, rx_sw_if_index); - pm->policer_index_by_sw_if_index[rx_sw_if_index] - = policer - pm->policers; - } - else - { - u32 pi; - vnet_hw_interface_rx_redirect_to_node (pm->vnet_main, - rxhi->hw_if_index, - ~0 /* disable */ ); - - pi = pm->policer_index_by_sw_if_index[rx_sw_if_index]; - pm->policer_index_by_sw_if_index[rx_sw_if_index] = ~0; - pool_put_index (pm->policers, pi); - } - return 0; -} - -static clib_error_t * -test_policer_command_fn (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - vnet_policer_main_t *pm = &vnet_policer_main; - unformat_input_t _line_input, *line_input = &_line_input; - u32 rx_sw_if_index; - int rv; - u8 *config_name = 0; - int rx_set = 0; - int is_add = 1; - int is_show = 0; - clib_error_t *error = NULL; - - /* Get a line of input. */ - if (!unformat_user (input, unformat_line_input, line_input)) - return 0; - - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "intfc %U", unformat_vnet_sw_interface, - pm->vnet_main, &rx_sw_if_index)) - rx_set = 1; - else if (unformat (line_input, "show")) - is_show = 1; - else if (unformat (line_input, "policer %s", &config_name)) - ; - else if (unformat (line_input, "del")) - is_add = 0; - else - break; - } - - if (rx_set == 0) - { - error = clib_error_return (0, "interface not set"); - goto done; - } - - if (is_show) - { - u32 pi = pm->policer_index_by_sw_if_index[rx_sw_if_index]; - policer_t *policer; - policer = pool_elt_at_index (pm->policers, pi); - - vlib_cli_output (vm, "%U", format_policer_instance, policer); - goto done; - } - - if (is_add && config_name == 0) - { - error = clib_error_return (0, "policer config name required"); - goto done; - } - - rv = test_policer_add_del (rx_sw_if_index, config_name, is_add); - - switch (rv) - { - case 0: - break; - - default: - error = clib_error_return - (0, "WARNING: vnet_vnet_policer_add_del returned %d", rv); - goto done; - } - -done: - unformat_free (line_input); - - return error; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (test_patch_command, static) = { - .path = "test policer", - .short_help = - "intfc policer [del]", - .function = test_policer_command_fn, +VNET_FEATURE_INIT (policer_input_node, static) = { + .arc_name = "device-input", + .node_name = "policer-input", + .runs_before = VNET_FEATURES ("ethernet-input"), }; -/* *INDENT-ON* */ -#endif /* CLIB_MARCH_VARIANT */ - -#endif /* TEST_CODE */ - typedef struct { diff --git a/src/vnet/policer/policer.c b/src/vnet/policer/policer.c index f6a19f40020..fb2ce7598fa 100644 --- a/src/vnet/policer/policer.c +++ b/src/vnet/policer/policer.c @@ -592,9 +592,6 @@ clib_error_t * policer_init (vlib_main_t * vm) { vnet_policer_main_t *pm = &vnet_policer_main; - void vnet_policer_node_funcs_reference (void); - - vnet_policer_node_funcs_reference (); pm->vlib_main = vm; pm->vnet_main = vnet_get_main (); diff --git a/src/vnet/policer/policer.h b/src/vnet/policer/policer.h index 783c0ad2f35..9a6de1490a5 100644 --- a/src/vnet/policer/policer.h +++ b/src/vnet/policer/policer.h @@ -54,14 +54,6 @@ extern vlib_combined_counter_main_t policer_counters[]; typedef enum { - VNET_POLICER_INDEX_BY_SW_IF_INDEX, - VNET_POLICER_INDEX_BY_OPAQUE, - VNET_POLICER_INDEX_BY_EITHER, -} vnet_policer_index_t; - -typedef enum -{ - VNET_POLICER_NEXT_TRANSMIT, VNET_POLICER_NEXT_DROP, VNET_POLICER_N_NEXT, } vnet_policer_next_t; 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