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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
commit | a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 (patch) | |
tree | 8feaf1a1932871b139b3b30be4c09c66489918be /tc/q_prio.c | |
parent | Initial commit. (diff) | |
download | iproute2-a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67.tar.xz iproute2-a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67.zip |
Adding upstream version 6.1.0.upstream/6.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tc/q_prio.c')
-rw-r--r-- | tc/q_prio.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/tc/q_prio.c b/tc/q_prio.c new file mode 100644 index 0000000..a723a15 --- /dev/null +++ b/tc/q_prio.c @@ -0,0 +1,129 @@ +/* + * q_prio.c PRIO. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <string.h> + +#include "utils.h" +#include "tc_util.h" + +static void explain(void) +{ + fprintf(stderr, "Usage: ... prio bands NUMBER priomap P1 P2...[multiqueue]\n"); +} + +static int prio_parse_opt(struct qdisc_util *qu, int argc, char **argv, + struct nlmsghdr *n, const char *dev) +{ + int pmap_mode = 0; + int idx = 0; + struct tc_prio_qopt opt = {3, { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 } }; + struct rtattr *nest; + unsigned char mq = 0; + + while (argc > 0) { + if (strcmp(*argv, "bands") == 0) { + if (pmap_mode) + explain(); + NEXT_ARG(); + if (get_integer(&opt.bands, *argv, 10)) { + fprintf(stderr, "Illegal \"bands\"\n"); + return -1; + } + } else if (strcmp(*argv, "priomap") == 0) { + if (pmap_mode) { + fprintf(stderr, "Error: duplicate priomap\n"); + return -1; + } + pmap_mode = 1; + } else if (strcmp(*argv, "multiqueue") == 0) { + mq = 1; + } else if (strcmp(*argv, "help") == 0) { + explain(); + return -1; + } else { + unsigned int band; + + if (!pmap_mode) { + fprintf(stderr, "What is \"%s\"?\n", *argv); + explain(); + return -1; + } + if (get_unsigned(&band, *argv, 10)) { + fprintf(stderr, "Illegal \"priomap\" element\n"); + return -1; + } + if (band >= opt.bands) { + fprintf(stderr, "\"priomap\" element is out of bands\n"); + return -1; + } + if (idx > TC_PRIO_MAX) { + fprintf(stderr, "\"priomap\" index > TC_PRIO_MAX=%u\n", TC_PRIO_MAX); + return -1; + } + opt.priomap[idx++] = band; + } + argc--; argv++; + } + +/* + if (pmap_mode) { + for (; idx < TC_PRIO_MAX; idx++) + opt.priomap[idx] = opt.priomap[TC_PRIO_BESTEFFORT]; + } +*/ + nest = addattr_nest_compat(n, 1024, TCA_OPTIONS, &opt, sizeof(opt)); + if (mq) + addattr_l(n, 1024, TCA_PRIO_MQ, NULL, 0); + addattr_nest_compat_end(n, nest); + return 0; +} + +int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) +{ + int i; + struct tc_prio_qopt *qopt; + struct rtattr *tb[TCA_PRIO_MAX+1]; + + if (opt == NULL) + return 0; + + if (parse_rtattr_nested_compat(tb, TCA_PRIO_MAX, opt, qopt, + sizeof(*qopt))) + return -1; + + print_uint(PRINT_ANY, "bands", "bands %u ", qopt->bands); + open_json_array(PRINT_ANY, "priomap"); + for (i = 0; i <= TC_PRIO_MAX; i++) + print_uint(PRINT_ANY, NULL, " %d", qopt->priomap[i]); + close_json_array(PRINT_ANY, ""); + + if (tb[TCA_PRIO_MQ]) + print_string(PRINT_FP, NULL, " multiqueue: %s ", + rta_getattr_u8(tb[TCA_PRIO_MQ]) ? "on" : "off"); + print_bool(PRINT_JSON, "multiqueue", NULL, + tb[TCA_PRIO_MQ] && rta_getattr_u8(tb[TCA_PRIO_MQ])); + + return 0; +} + +struct qdisc_util prio_qdisc_util = { + .id = "prio", + .parse_qopt = prio_parse_opt, + .print_qopt = prio_print_opt, +}; |