| // SPDX-License-Identifier: GPL-2.0+ |
| |
| #include <errno.h> |
| #include <inttypes.h> |
| #include <stdio.h> |
| #include <linux/dcbnl.h> |
| |
| #include "dcb.h" |
| #include "utils.h" |
| |
| static void dcb_maxrate_help_set(void) |
| { |
| fprintf(stderr, |
| "Usage: dcb maxrate set dev STRING\n" |
| " [ tc-maxrate RATE-MAP ]\n" |
| "\n" |
| " where RATE-MAP := [ RATE-MAP ] RATE-MAPPING\n" |
| " RATE-MAPPING := { all | TC }:RATE\n" |
| " TC := { 0 .. 7 }\n" |
| "\n" |
| ); |
| } |
| |
| static void dcb_maxrate_help_show(void) |
| { |
| fprintf(stderr, |
| "Usage: dcb [ -i ] maxrate show dev STRING\n" |
| " [ tc-maxrate ]\n" |
| "\n" |
| ); |
| } |
| |
| static void dcb_maxrate_help(void) |
| { |
| fprintf(stderr, |
| "Usage: dcb maxrate help\n" |
| "\n" |
| ); |
| dcb_maxrate_help_show(); |
| dcb_maxrate_help_set(); |
| } |
| |
| static int dcb_maxrate_parse_mapping_tc_maxrate(__u32 key, char *value, void *data) |
| { |
| __u64 rate; |
| |
| if (get_rate64(&rate, value)) |
| return -EINVAL; |
| |
| return dcb_parse_mapping("TC", key, IEEE_8021QAZ_MAX_TCS - 1, |
| "RATE", rate, -1, |
| dcb_set_u64, data); |
| } |
| |
| static void dcb_maxrate_print_tc_maxrate(struct dcb *dcb, const struct ieee_maxrate *maxrate) |
| { |
| size_t size = ARRAY_SIZE(maxrate->tc_maxrate); |
| SPRINT_BUF(b); |
| size_t i; |
| |
| open_json_array(PRINT_JSON, "tc_maxrate"); |
| print_string(PRINT_FP, NULL, "tc-maxrate ", NULL); |
| |
| for (i = 0; i < size; i++) { |
| snprintf(b, sizeof(b), "%zd:%%s ", i); |
| print_rate(dcb->use_iec, PRINT_ANY, NULL, b, maxrate->tc_maxrate[i]); |
| } |
| |
| close_json_array(PRINT_JSON, "tc_maxrate"); |
| } |
| |
| static void dcb_maxrate_print(struct dcb *dcb, const struct ieee_maxrate *maxrate) |
| { |
| dcb_maxrate_print_tc_maxrate(dcb, maxrate); |
| print_nl(); |
| } |
| |
| static int dcb_maxrate_get(struct dcb *dcb, const char *dev, struct ieee_maxrate *maxrate) |
| { |
| return dcb_get_attribute(dcb, dev, DCB_ATTR_IEEE_MAXRATE, maxrate, sizeof(*maxrate)); |
| } |
| |
| static int dcb_maxrate_set(struct dcb *dcb, const char *dev, const struct ieee_maxrate *maxrate) |
| { |
| return dcb_set_attribute(dcb, dev, DCB_ATTR_IEEE_MAXRATE, maxrate, sizeof(*maxrate)); |
| } |
| |
| static int dcb_cmd_maxrate_set(struct dcb *dcb, const char *dev, int argc, char **argv) |
| { |
| struct ieee_maxrate maxrate; |
| int ret; |
| |
| if (!argc) { |
| dcb_maxrate_help_set(); |
| return 0; |
| } |
| |
| ret = dcb_maxrate_get(dcb, dev, &maxrate); |
| if (ret) |
| return ret; |
| |
| do { |
| if (matches(*argv, "help") == 0) { |
| dcb_maxrate_help_set(); |
| return 0; |
| } else if (matches(*argv, "tc-maxrate") == 0) { |
| NEXT_ARG(); |
| ret = parse_mapping(&argc, &argv, true, |
| &dcb_maxrate_parse_mapping_tc_maxrate, &maxrate); |
| if (ret) { |
| fprintf(stderr, "Invalid mapping %s\n", *argv); |
| return ret; |
| } |
| continue; |
| } else { |
| fprintf(stderr, "What is \"%s\"?\n", *argv); |
| dcb_maxrate_help_set(); |
| return -EINVAL; |
| } |
| |
| NEXT_ARG_FWD(); |
| } while (argc > 0); |
| |
| return dcb_maxrate_set(dcb, dev, &maxrate); |
| } |
| |
| static int dcb_cmd_maxrate_show(struct dcb *dcb, const char *dev, int argc, char **argv) |
| { |
| struct ieee_maxrate maxrate; |
| int ret; |
| |
| ret = dcb_maxrate_get(dcb, dev, &maxrate); |
| if (ret) |
| return ret; |
| |
| open_json_object(NULL); |
| |
| if (!argc) { |
| dcb_maxrate_print(dcb, &maxrate); |
| goto out; |
| } |
| |
| do { |
| if (matches(*argv, "help") == 0) { |
| dcb_maxrate_help_show(); |
| return 0; |
| } else if (matches(*argv, "tc-maxrate") == 0) { |
| dcb_maxrate_print_tc_maxrate(dcb, &maxrate); |
| print_nl(); |
| } else { |
| fprintf(stderr, "What is \"%s\"?\n", *argv); |
| dcb_maxrate_help_show(); |
| return -EINVAL; |
| } |
| |
| NEXT_ARG_FWD(); |
| } while (argc > 0); |
| |
| out: |
| close_json_object(); |
| return 0; |
| } |
| |
| int dcb_cmd_maxrate(struct dcb *dcb, int argc, char **argv) |
| { |
| if (!argc || matches(*argv, "help") == 0) { |
| dcb_maxrate_help(); |
| return 0; |
| } else if (matches(*argv, "show") == 0) { |
| NEXT_ARG_FWD(); |
| return dcb_cmd_parse_dev(dcb, argc, argv, |
| dcb_cmd_maxrate_show, dcb_maxrate_help_show); |
| } else if (matches(*argv, "set") == 0) { |
| NEXT_ARG_FWD(); |
| return dcb_cmd_parse_dev(dcb, argc, argv, |
| dcb_cmd_maxrate_set, dcb_maxrate_help_set); |
| } else { |
| fprintf(stderr, "What is \"%s\"?\n", *argv); |
| dcb_maxrate_help(); |
| return -EINVAL; |
| } |
| } |