From 8bd4862f297bf43356f12fb5b1aa050a545654fb Mon Sep 17 00:00:00 2001 From: Cristian Dumitrescu Date: Mon, 20 Sep 2021 16:01:32 +0100 Subject: [PATCH] examples/pipeline: support learner tables Add application-level support for learner tables. Signed-off-by: Cristian Dumitrescu --- examples/pipeline/cli.c | 174 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) diff --git a/examples/pipeline/cli.c b/examples/pipeline/cli.c index 1ba9b8c52c..b9e1eea50e 100644 --- a/examples/pipeline/cli.c +++ b/examples/pipeline/cli.c @@ -1827,6 +1827,104 @@ cmd_pipeline_selector_show(char **tokens, snprintf(out, out_size, MSG_ARG_INVALID, "selector_name"); } +static int +pipeline_learner_default_entry_add(struct rte_swx_ctl_pipeline *p, + const char *learner_name, + FILE *file, + uint32_t *file_line_number) +{ + char *line = NULL; + uint32_t line_id = 0; + int status = 0; + + /* Buffer allocation. */ + line = malloc(MAX_LINE_SIZE); + if (!line) + return -ENOMEM; + + /* File read. */ + for (line_id = 1; ; line_id++) { + struct rte_swx_table_entry *entry; + int is_blank_or_comment; + + if (fgets(line, MAX_LINE_SIZE, file) == NULL) + break; + + entry = rte_swx_ctl_pipeline_learner_default_entry_read(p, + learner_name, + line, + &is_blank_or_comment); + if (!entry) { + if (is_blank_or_comment) + continue; + + status = -EINVAL; + goto error; + } + + status = rte_swx_ctl_pipeline_learner_default_entry_add(p, + learner_name, + entry); + table_entry_free(entry); + if (status) + goto error; + } + +error: + *file_line_number = line_id; + free(line); + return status; +} + +static const char cmd_pipeline_learner_default_help[] = +"pipeline learner default \n"; + +static void +cmd_pipeline_learner_default(char **tokens, + uint32_t n_tokens, + char *out, + size_t out_size, + void *obj) +{ + struct pipeline *p; + char *pipeline_name, *learner_name, *file_name; + FILE *file = NULL; + uint32_t file_line_number = 0; + int status; + + if (n_tokens != 6) { + snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]); + return; + } + + pipeline_name = tokens[1]; + p = pipeline_find(obj, pipeline_name); + if (!p || !p->ctl) { + snprintf(out, out_size, MSG_ARG_INVALID, "pipeline_name"); + return; + } + + learner_name = tokens[3]; + + file_name = tokens[5]; + file = fopen(file_name, "r"); + if (!file) { + snprintf(out, out_size, "Cannot open file %s.\n", file_name); + return; + } + + status = pipeline_learner_default_entry_add(p->ctl, + learner_name, + file, + &file_line_number); + if (status) + snprintf(out, out_size, "Invalid entry in file %s at line %u\n", + file_name, + file_line_number); + + fclose(file); +} + static const char cmd_pipeline_commit_help[] = "pipeline commit\n"; @@ -2501,6 +2599,64 @@ cmd_pipeline_stats(char **tokens, out += strlen(out); } } + + snprintf(out, out_size, "\nLearner tables:\n"); + out_size -= strlen(out); + out += strlen(out); + + for (i = 0; i < info.n_learners; i++) { + struct rte_swx_ctl_learner_info learner_info; + uint64_t n_pkts_action[info.n_actions]; + struct rte_swx_learner_stats stats = { + .n_pkts_hit = 0, + .n_pkts_miss = 0, + .n_pkts_action = n_pkts_action, + }; + uint32_t j; + + status = rte_swx_ctl_learner_info_get(p->p, i, &learner_info); + if (status) { + snprintf(out, out_size, "Learner table info get error."); + return; + } + + status = rte_swx_ctl_pipeline_learner_stats_read(p->p, learner_info.name, &stats); + if (status) { + snprintf(out, out_size, "Learner table stats read error."); + return; + } + + snprintf(out, out_size, "\tLearner table %s:\n" + "\t\tHit (packets): %" PRIu64 "\n" + "\t\tMiss (packets): %" PRIu64 "\n" + "\t\tLearn OK (packets): %" PRIu64 "\n" + "\t\tLearn error (packets): %" PRIu64 "\n" + "\t\tForget (packets): %" PRIu64 "\n", + learner_info.name, + stats.n_pkts_hit, + stats.n_pkts_miss, + stats.n_pkts_learn_ok, + stats.n_pkts_learn_err, + stats.n_pkts_forget); + out_size -= strlen(out); + out += strlen(out); + + for (j = 0; j < info.n_actions; j++) { + struct rte_swx_ctl_action_info action_info; + + status = rte_swx_ctl_action_info_get(p->p, j, &action_info); + if (status) { + snprintf(out, out_size, "Action info get error."); + return; + } + + snprintf(out, out_size, "\t\tAction %s (packets): %" PRIu64 "\n", + action_info.name, + stats.n_pkts_action[j]); + out_size -= strlen(out); + out += strlen(out); + } + } } static const char cmd_thread_pipeline_enable_help[] = @@ -2632,6 +2788,7 @@ cmd_help(char **tokens, "\tpipeline selector group member add\n" "\tpipeline selector group member delete\n" "\tpipeline selector show\n" + "\tpipeline learner default\n" "\tpipeline commit\n" "\tpipeline abort\n" "\tpipeline regrd\n" @@ -2781,6 +2938,15 @@ cmd_help(char **tokens, return; } + if ((strcmp(tokens[0], "pipeline") == 0) && + (n_tokens == 3) && + (strcmp(tokens[1], "learner") == 0) && + (strcmp(tokens[2], "default") == 0)) { + snprintf(out, out_size, "\n%s\n", + cmd_pipeline_learner_default_help); + return; + } + if ((strcmp(tokens[0], "pipeline") == 0) && (n_tokens == 2) && (strcmp(tokens[1], "commit") == 0)) { @@ -3029,6 +3195,14 @@ cli_process(char *in, char *out, size_t out_size, void *obj) return; } + if ((n_tokens >= 5) && + (strcmp(tokens[2], "learner") == 0) && + (strcmp(tokens[4], "default") == 0)) { + cmd_pipeline_learner_default(tokens, n_tokens, out, + out_size, obj); + return; + } + if ((n_tokens >= 3) && (strcmp(tokens[2], "commit") == 0)) { cmd_pipeline_commit(tokens, n_tokens, out,