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-rw-r--r--src/vnet/policer/policer.c528
1 files changed, 528 insertions, 0 deletions
diff --git a/src/vnet/policer/policer.c b/src/vnet/policer/policer.c
new file mode 100644
index 00000000000..290a6af57e2
--- /dev/null
+++ b/src/vnet/policer/policer.c
@@ -0,0 +1,528 @@
+/*
+ * 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.
+ */
+#include <stdint.h>
+#include <vnet/policer/policer.h>
+#include <vnet/classify/vnet_classify.h>
+
+clib_error_t *
+policer_add_del (vlib_main_t * vm,
+ u8 * name,
+ sse2_qos_pol_cfg_params_st * cfg,
+ u32 * policer_index, u8 is_add)
+{
+ vnet_policer_main_t *pm = &vnet_policer_main;
+ policer_read_response_type_st test_policer;
+ policer_read_response_type_st *policer;
+ uword *p;
+ u32 pi;
+ int rv;
+
+ p = hash_get_mem (pm->policer_config_by_name, name);
+
+ if (is_add == 0)
+ {
+ if (p == 0)
+ {
+ vec_free (name);
+ return clib_error_return (0, "No such policer configuration");
+ }
+ hash_unset_mem (pm->policer_config_by_name, name);
+ hash_unset_mem (pm->policer_index_by_name, name);
+ vec_free (name);
+ return 0;
+ }
+
+ if (p != 0)
+ {
+ vec_free (name);
+ return clib_error_return (0, "Policer already exists");
+ }
+
+ /* Vet the configuration before adding it to the table */
+ rv = sse2_pol_logical_2_physical (cfg, &test_policer);
+
+ if (rv == 0)
+ {
+ policer_read_response_type_st *pp;
+ sse2_qos_pol_cfg_params_st *cp;
+
+ pool_get (pm->configs, cp);
+ pool_get (pm->policer_templates, pp);
+
+ ASSERT (cp - pm->configs == pp - pm->policer_templates);
+
+ clib_memcpy (cp, cfg, sizeof (*cp));
+ clib_memcpy (pp, &test_policer, sizeof (*pp));
+
+ hash_set_mem (pm->policer_config_by_name, name, cp - pm->configs);
+ pool_get_aligned (pm->policers, policer, CLIB_CACHE_LINE_BYTES);
+ policer[0] = pp[0];
+ pi = policer - pm->policers;
+ hash_set_mem (pm->policer_index_by_name, name, pi);
+ *policer_index = pi;
+ }
+ else
+ {
+ vec_free (name);
+ return clib_error_return (0, "Config failed sanity check");
+ }
+
+ return 0;
+}
+
+u8 *
+format_policer_instance (u8 * s, va_list * va)
+{
+ policer_read_response_type_st *i
+ = va_arg (*va, policer_read_response_type_st *);
+
+ s = format (s, "policer at %llx: %s rate, %s color-aware\n",
+ i, i->single_rate ? "single" : "dual",
+ i->color_aware ? "is" : "not");
+ s = format (s, "cir %u tok/period, pir %u tok/period, scale %u\n",
+ i->cir_tokens_per_period, i->pir_tokens_per_period, i->scale);
+ s = format (s, "cur lim %u, cur bkt %u, ext lim %u, ext bkt %u\n",
+ i->current_limit,
+ i->current_bucket, i->extended_limit, i->extended_bucket);
+ s = format (s, "last update %llu\n", i->last_update_time);
+ return s;
+}
+
+static u8 *
+format_policer_round_type (u8 * s, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (c->rnd_type == SSE2_QOS_ROUND_TO_CLOSEST)
+ s = format (s, "closest");
+ else if (c->rnd_type == SSE2_QOS_ROUND_TO_UP)
+ s = format (s, "up");
+ else if (c->rnd_type == SSE2_QOS_ROUND_TO_DOWN)
+ s = format (s, "down");
+ else
+ s = format (s, "ILLEGAL");
+ return s;
+}
+
+
+static u8 *
+format_policer_rate_type (u8 * s, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (c->rate_type == SSE2_QOS_RATE_KBPS)
+ s = format (s, "kbps");
+ else if (c->rate_type == SSE2_QOS_RATE_PPS)
+ s = format (s, "pps");
+ else
+ s = format (s, "ILLEGAL");
+ return s;
+}
+
+static u8 *
+format_policer_type (u8 * s, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (c->rfc == SSE2_QOS_POLICER_TYPE_1R2C)
+ s = format (s, "1r2c");
+
+ else if (c->rfc == SSE2_QOS_POLICER_TYPE_1R3C_RFC_2697)
+ s = format (s, "1r3c");
+
+ else if (c->rfc == SSE2_QOS_POLICER_TYPE_2R3C_RFC_2698)
+ s = format (s, "2r3c-2698");
+
+ else if (c->rfc == SSE2_QOS_POLICER_TYPE_2R3C_RFC_4115)
+ s = format (s, "2r3c-4115");
+
+ else if (c->rfc == SSE2_QOS_POLICER_TYPE_2R3C_RFC_MEF5CF1)
+ s = format (s, "2r3c-mef5cf1");
+ else
+ s = format (s, "ILLEGAL");
+ return s;
+}
+
+static u8 *
+format_dscp (u8 * s, va_list * va)
+{
+ u32 i = va_arg (*va, u32);
+ char *t = 0;
+
+ switch (i)
+ {
+#define _(v,f,str) case VNET_DSCP_##f: t = str; break;
+ foreach_vnet_dscp
+#undef _
+ default:
+ return format (s, "ILLEGAL");
+ }
+ s = format (s, "%s", t);
+ return s;
+}
+
+static u8 *
+format_policer_action_type (u8 * s, va_list * va)
+{
+ sse2_qos_pol_action_params_st *a
+ = va_arg (*va, sse2_qos_pol_action_params_st *);
+
+ if (a->action_type == SSE2_QOS_ACTION_DROP)
+ s = format (s, "drop");
+ else if (a->action_type == SSE2_QOS_ACTION_TRANSMIT)
+ s = format (s, "transmit");
+ else if (a->action_type == SSE2_QOS_ACTION_MARK_AND_TRANSMIT)
+ s = format (s, "mark-and-transmit %U", format_dscp, a->dscp);
+ else
+ s = format (s, "ILLEGAL");
+ return s;
+}
+
+u8 *
+format_policer_config (u8 * s, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ s = format (s, "type %U cir %u eir %u cb %u eb %u\n",
+ format_policer_type, c,
+ c->rb.kbps.cir_kbps,
+ c->rb.kbps.eir_kbps, c->rb.kbps.cb_bytes, c->rb.kbps.eb_bytes);
+ s = format (s, "rate type %U, round type %U\n",
+ format_policer_rate_type, c, format_policer_round_type, c);
+ s = format (s, "conform action %U, exceed action %U, violate action %U\n",
+ format_policer_action_type, &c->conform_action,
+ format_policer_action_type, &c->exceed_action,
+ format_policer_action_type, &c->violate_action);
+ return s;
+}
+
+static uword
+unformat_policer_type (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (!unformat (input, "type"))
+ return 0;
+
+ if (unformat (input, "1r2c"))
+ c->rfc = SSE2_QOS_POLICER_TYPE_1R2C;
+ else if (unformat (input, "1r3c"))
+ c->rfc = SSE2_QOS_POLICER_TYPE_1R3C_RFC_2697;
+ else if (unformat (input, "2r3c-2698"))
+ c->rfc = SSE2_QOS_POLICER_TYPE_2R3C_RFC_2698;
+ else if (unformat (input, "2r3c-4115"))
+ c->rfc = SSE2_QOS_POLICER_TYPE_2R3C_RFC_4115;
+ else if (unformat (input, "2r3c-mef5cf1"))
+ c->rfc = SSE2_QOS_POLICER_TYPE_2R3C_RFC_MEF5CF1;
+ else
+ return 0;
+ return 1;
+}
+
+static uword
+unformat_policer_round_type (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (!unformat (input, "round"))
+ return 0;
+
+ if (unformat (input, "closest"))
+ c->rnd_type = SSE2_QOS_ROUND_TO_CLOSEST;
+ else if (unformat (input, "up"))
+ c->rnd_type = SSE2_QOS_ROUND_TO_UP;
+ else if (unformat (input, "down"))
+ c->rnd_type = SSE2_QOS_ROUND_TO_DOWN;
+ else
+ return 0;
+ return 1;
+}
+
+static uword
+unformat_policer_rate_type (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (!unformat (input, "rate"))
+ return 0;
+
+ if (unformat (input, "kbps"))
+ c->rate_type = SSE2_QOS_RATE_KBPS;
+ else if (unformat (input, "pps"))
+ c->rate_type = SSE2_QOS_RATE_PPS;
+ else
+ return 0;
+ return 1;
+}
+
+static uword
+unformat_policer_cir (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (unformat (input, "cir %u", &c->rb.kbps.cir_kbps))
+ return 1;
+ return 0;
+}
+
+static uword
+unformat_policer_eir (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (unformat (input, "eir %u", &c->rb.kbps.eir_kbps))
+ return 1;
+ return 0;
+}
+
+static uword
+unformat_policer_cb (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (unformat (input, "cb %u", &c->rb.kbps.cb_bytes))
+ return 1;
+ return 0;
+}
+
+static uword
+unformat_policer_eb (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (unformat (input, "eb %u", &c->rb.kbps.eb_bytes))
+ return 1;
+ return 0;
+}
+
+static uword
+unformat_dscp (unformat_input_t * input, va_list * va)
+{
+ u8 *r = va_arg (*va, u8 *);
+
+ if (0);
+#define _(v,f,str) else if (unformat (input, str)) *r = VNET_DSCP_##f;
+ foreach_vnet_dscp
+#undef _
+ else
+ return 0;
+ return 1;
+}
+
+static uword
+unformat_policer_action_type (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_action_params_st *a
+ = va_arg (*va, sse2_qos_pol_action_params_st *);
+
+ if (unformat (input, "drop"))
+ a->action_type = SSE2_QOS_ACTION_DROP;
+ else if (unformat (input, "transmit"))
+ a->action_type = SSE2_QOS_ACTION_TRANSMIT;
+ else if (unformat (input, "mark-and-transmit %U", unformat_dscp, &a->dscp))
+ a->action_type = SSE2_QOS_ACTION_MARK_AND_TRANSMIT;
+ else
+ return 0;
+ return 1;
+}
+
+static uword
+unformat_policer_action (unformat_input_t * input, va_list * va)
+{
+ sse2_qos_pol_cfg_params_st *c = va_arg (*va, sse2_qos_pol_cfg_params_st *);
+
+ if (unformat (input, "conform-action %U", unformat_policer_action_type,
+ &c->conform_action))
+ return 1;
+ else if (unformat (input, "exceed-action %U", unformat_policer_action_type,
+ &c->exceed_action))
+ return 1;
+ else if (unformat (input, "violate-action %U", unformat_policer_action_type,
+ &c->violate_action))
+ return 1;
+ return 0;
+}
+
+static uword
+unformat_policer_classify_next_index (unformat_input_t * input, va_list * va)
+{
+ u32 *r = va_arg (*va, u32 *);
+ vnet_policer_main_t *pm = &vnet_policer_main;
+ uword *p;
+ u8 *match_name = 0;
+
+ if (unformat (input, "%s", &match_name))
+ ;
+ else
+ return 0;
+
+ p = hash_get_mem (pm->policer_index_by_name, match_name);
+
+ if (p == 0)
+ return 0;
+
+ *r = p[0];
+
+ return 1;
+}
+
+static uword
+unformat_policer_classify_precolor (unformat_input_t * input, va_list * va)
+{
+ u32 *r = va_arg (*va, u32 *);
+
+ if (unformat (input, "conform-color"))
+ *r = POLICE_CONFORM;
+ else if (unformat (input, "exceed-color"))
+ *r = POLICE_EXCEED;
+ else
+ return 0;
+
+ return 1;
+}
+
+#define foreach_config_param \
+_(eb) \
+_(cb) \
+_(eir) \
+_(cir) \
+_(rate_type) \
+_(round_type) \
+_(type) \
+_(action)
+
+static clib_error_t *
+configure_policer_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ sse2_qos_pol_cfg_params_st c;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 is_add = 1;
+ u8 *name = 0;
+ u32 pi;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ memset (&c, 0, sizeof (c));
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "del"))
+ is_add = 0;
+ else if (unformat (line_input, "name %s", &name))
+ ;
+ else if (unformat (line_input, "color-aware"))
+ c.color_aware = 1;
+
+#define _(a) else if (unformat (line_input, "%U", unformat_policer_##a, &c)) ;
+ foreach_config_param
+#undef _
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ }
+
+ unformat_free (line_input);
+
+ return policer_add_del (vm, name, &c, &pi, is_add);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (configure_policer_command, static) = {
+ .path = "configure policer",
+ .short_help = "configure policer name <name> <params> ",
+ .function = configure_policer_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+show_policer_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_policer_main_t *pm = &vnet_policer_main;
+ hash_pair_t *p;
+ u32 pool_index;
+ u8 *match_name = 0;
+ u8 *name;
+ sse2_qos_pol_cfg_params_st *config;
+ policer_read_response_type_st *templ;
+
+ (void) unformat (input, "name %s", &match_name);
+
+ /* *INDENT-OFF* */
+ hash_foreach_pair (p, pm->policer_config_by_name,
+ ({
+ name = (u8 *) p->key;
+ if (match_name == 0 || !strcmp((char *) name, (char *) match_name))
+ {
+ pool_index = p->value[0];
+ config = pool_elt_at_index (pm->configs, pool_index);
+ templ = pool_elt_at_index (pm->policer_templates, pool_index);
+ vlib_cli_output (vm, "Name \"%s\" %U ",
+ name, format_policer_config, config);
+ vlib_cli_output (vm, "Template %U",
+ format_policer_instance, templ);
+ vlib_cli_output (vm, "-----------");
+ }
+ }));
+ /* *INDENT-ON* */
+ return 0;
+}
+
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_policer_command, static) = {
+ .path = "show policer",
+ .short_help = "show policer [name]",
+ .function = show_policer_command_fn,
+};
+/* *INDENT-ON* */
+
+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 ();
+
+ pm->policer_config_by_name = hash_create_string (0, sizeof (uword));
+ pm->policer_index_by_name = hash_create_string (0, sizeof (uword));
+
+ vnet_classify_register_unformat_policer_next_index_fn
+ (unformat_policer_classify_next_index);
+ vnet_classify_register_unformat_opaque_index_fn
+ (unformat_policer_classify_precolor);
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (policer_init);
+
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */