diff options
Diffstat (limited to 'tc/q_cake.c')
| -rw-r--r-- | tc/q_cake.c | 829 |
1 files changed, 829 insertions, 0 deletions
diff --git a/tc/q_cake.c b/tc/q_cake.c new file mode 100644 index 0000000..c438b76 --- /dev/null +++ b/tc/q_cake.c @@ -0,0 +1,829 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause + +/* + * Common Applications Kept Enhanced -- CAKE + * + * Copyright (C) 2014-2018 Jonathan Morton <chromatix99@gmail.com> + * Copyright (C) 2017-2018 Toke Høiland-Jørgensen <toke@toke.dk> + */ + +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <syslog.h> +#include <fcntl.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <string.h> +#include <inttypes.h> + +#include "utils.h" +#include "tc_util.h" + +struct cake_preset { + char *name; + unsigned int target; + unsigned int interval; +}; + +static struct cake_preset presets[] = { + {"datacentre", 5, 100}, + {"lan", 50, 1000}, + {"metro", 500, 10000}, + {"regional", 1500, 30000}, + {"internet", 5000, 100000}, + {"oceanic", 15000, 300000}, + {"satellite", 50000, 1000000}, + {"interplanetary", 50000000, 1000000000}, +}; + +static const char * diffserv_names[CAKE_DIFFSERV_MAX] = { + [CAKE_DIFFSERV_DIFFSERV3] = "diffserv3", + [CAKE_DIFFSERV_DIFFSERV4] = "diffserv4", + [CAKE_DIFFSERV_DIFFSERV8] = "diffserv8", + [CAKE_DIFFSERV_BESTEFFORT] = "besteffort", + [CAKE_DIFFSERV_PRECEDENCE] = "precedence", +}; + +static const char * flowmode_names[CAKE_FLOW_MAX] = { + [CAKE_FLOW_NONE] = "flowblind", + [CAKE_FLOW_SRC_IP] = "srchost", + [CAKE_FLOW_DST_IP] = "dsthost", + [CAKE_FLOW_HOSTS] = "hosts", + [CAKE_FLOW_FLOWS] = "flows", + [CAKE_FLOW_DUAL_SRC] = "dual-srchost", + [CAKE_FLOW_DUAL_DST] = "dual-dsthost", + [CAKE_FLOW_TRIPLE] = "triple-isolate", +}; + +static struct cake_preset *find_preset(char *argv) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(presets); i++) + if (!strcmp(argv, presets[i].name)) + return &presets[i]; + return NULL; +} + +static void explain(void) +{ + fprintf(stderr, + "Usage: ... cake [ bandwidth RATE | unlimited* | autorate-ingress ]\n" + " [ rtt TIME | datacentre | lan | metro | regional |\n" + " internet* | oceanic | satellite | interplanetary ]\n" + " [ besteffort | diffserv8 | diffserv4 | diffserv3* ]\n" + " [ flowblind | srchost | dsthost | hosts | flows |\n" + " dual-srchost | dual-dsthost | triple-isolate* ]\n" + " [ nat | nonat* ]\n" + " [ wash | nowash* ]\n" + " [ split-gso* | no-split-gso ]\n" + " [ ack-filter | ack-filter-aggressive | no-ack-filter* ]\n" + " [ memlimit LIMIT ]\n" + " [ fwmark MASK ]\n" + " [ ptm | atm | noatm* ] [ overhead N | conservative | raw* ]\n" + " [ mpu N ] [ ingress | egress* ]\n" + " (* marks defaults)\n"); +} + +static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv, + struct nlmsghdr *n, const char *dev) +{ + struct cake_preset *preset, *preset_set = NULL; + bool overhead_override = false; + bool overhead_set = false; + unsigned int interval = 0; + int diffserv = -1; + unsigned int memlimit = 0; + unsigned int fwmark = 0; + unsigned int target = 0; + __u64 bandwidth = 0; + int ack_filter = -1; + struct rtattr *tail; + int split_gso = -1; + int unlimited = 0; + int flowmode = -1; + int autorate = -1; + int ingress = -1; + int overhead = 0; + int wash = -1; + int nat = -1; + int atm = -1; + int mpu = 0; + + while (argc > 0) { + if (strcmp(*argv, "bandwidth") == 0) { + NEXT_ARG(); + if (get_rate64(&bandwidth, *argv)) { + fprintf(stderr, "Illegal \"bandwidth\"\n"); + return -1; + } + unlimited = 0; + autorate = 0; + } else if (strcmp(*argv, "unlimited") == 0) { + bandwidth = 0; + unlimited = 1; + autorate = 0; + } else if (strcmp(*argv, "autorate-ingress") == 0) { + autorate = 1; + } else if (strcmp(*argv, "rtt") == 0) { + NEXT_ARG(); + if (get_time(&interval, *argv)) { + fprintf(stderr, "Illegal \"rtt\"\n"); + return -1; + } + target = interval / 20; + if (!target) + target = 1; + } else if ((preset = find_preset(*argv))) { + if (preset_set) + duparg(*argv, preset_set->name); + preset_set = preset; + target = preset->target; + interval = preset->interval; + } else if (strcmp(*argv, "besteffort") == 0) { + diffserv = CAKE_DIFFSERV_BESTEFFORT; + } else if (strcmp(*argv, "precedence") == 0) { + diffserv = CAKE_DIFFSERV_PRECEDENCE; + } else if (strcmp(*argv, "diffserv8") == 0) { + diffserv = CAKE_DIFFSERV_DIFFSERV8; + } else if (strcmp(*argv, "diffserv4") == 0) { + diffserv = CAKE_DIFFSERV_DIFFSERV4; + } else if (strcmp(*argv, "diffserv") == 0) { + diffserv = CAKE_DIFFSERV_DIFFSERV4; + } else if (strcmp(*argv, "diffserv3") == 0) { + diffserv = CAKE_DIFFSERV_DIFFSERV3; + } else if (strcmp(*argv, "nowash") == 0) { + wash = 0; + } else if (strcmp(*argv, "wash") == 0) { + wash = 1; + } else if (strcmp(*argv, "split-gso") == 0) { + split_gso = 1; + } else if (strcmp(*argv, "no-split-gso") == 0) { + split_gso = 0; + } else if (strcmp(*argv, "flowblind") == 0) { + flowmode = CAKE_FLOW_NONE; + } else if (strcmp(*argv, "srchost") == 0) { + flowmode = CAKE_FLOW_SRC_IP; + } else if (strcmp(*argv, "dsthost") == 0) { + flowmode = CAKE_FLOW_DST_IP; + } else if (strcmp(*argv, "hosts") == 0) { + flowmode = CAKE_FLOW_HOSTS; + } else if (strcmp(*argv, "flows") == 0) { + flowmode = CAKE_FLOW_FLOWS; + } else if (strcmp(*argv, "dual-srchost") == 0) { + flowmode = CAKE_FLOW_DUAL_SRC; + } else if (strcmp(*argv, "dual-dsthost") == 0) { + flowmode = CAKE_FLOW_DUAL_DST; + } else if (strcmp(*argv, "triple-isolate") == 0) { + flowmode = CAKE_FLOW_TRIPLE; + } else if (strcmp(*argv, "nat") == 0) { + nat = 1; + } else if (strcmp(*argv, "nonat") == 0) { + nat = 0; + } else if (strcmp(*argv, "ptm") == 0) { + atm = CAKE_ATM_PTM; + } else if (strcmp(*argv, "atm") == 0) { + atm = CAKE_ATM_ATM; + } else if (strcmp(*argv, "noatm") == 0) { + atm = CAKE_ATM_NONE; + } else if (strcmp(*argv, "raw") == 0) { + atm = CAKE_ATM_NONE; + overhead = 0; + overhead_set = true; + overhead_override = true; + } else if (strcmp(*argv, "conservative") == 0) { + /* + * Deliberately over-estimate overhead: + * one whole ATM cell plus ATM framing. + * A safe choice if the actual overhead is unknown. + */ + atm = CAKE_ATM_ATM; + overhead = 48; + overhead_set = true; + + /* Various ADSL framing schemes, all over ATM cells */ + } else if (strcmp(*argv, "ipoa-vcmux") == 0) { + atm = CAKE_ATM_ATM; + overhead += 8; + overhead_set = true; + } else if (strcmp(*argv, "ipoa-llcsnap") == 0) { + atm = CAKE_ATM_ATM; + overhead += 16; + overhead_set = true; + } else if (strcmp(*argv, "bridged-vcmux") == 0) { + atm = CAKE_ATM_ATM; + overhead += 24; + overhead_set = true; + } else if (strcmp(*argv, "bridged-llcsnap") == 0) { + atm = CAKE_ATM_ATM; + overhead += 32; + overhead_set = true; + } else if (strcmp(*argv, "pppoa-vcmux") == 0) { + atm = CAKE_ATM_ATM; + overhead += 10; + overhead_set = true; + } else if (strcmp(*argv, "pppoa-llc") == 0) { + atm = CAKE_ATM_ATM; + overhead += 14; + overhead_set = true; + } else if (strcmp(*argv, "pppoe-vcmux") == 0) { + atm = CAKE_ATM_ATM; + overhead += 32; + overhead_set = true; + } else if (strcmp(*argv, "pppoe-llcsnap") == 0) { + atm = CAKE_ATM_ATM; + overhead += 40; + overhead_set = true; + + /* Typical VDSL2 framing schemes, both over PTM */ + /* PTM has 64b/65b coding which absorbs some bandwidth */ + } else if (strcmp(*argv, "pppoe-ptm") == 0) { + /* 2B PPP + 6B PPPoE + 6B dest MAC + 6B src MAC + * + 2B ethertype + 4B Frame Check Sequence + * + 1B Start of Frame (S) + 1B End of Frame (Ck) + * + 2B TC-CRC (PTM-FCS) = 30B + */ + atm = CAKE_ATM_PTM; + overhead += 30; + overhead_set = true; + } else if (strcmp(*argv, "bridged-ptm") == 0) { + /* 6B dest MAC + 6B src MAC + 2B ethertype + * + 4B Frame Check Sequence + * + 1B Start of Frame (S) + 1B End of Frame (Ck) + * + 2B TC-CRC (PTM-FCS) = 22B + */ + atm = CAKE_ATM_PTM; + overhead += 22; + overhead_set = true; + } else if (strcmp(*argv, "via-ethernet") == 0) { + /* + * We used to use this flag to manually compensate for + * Linux including the Ethernet header on Ethernet-type + * interfaces, but not on IP-type interfaces. + * + * It is no longer needed, because Cake now adjusts for + * that automatically, and is thus ignored. + * + * It would be deleted entirely, but it appears in the + * stats output when the automatic compensation is + * active. + */ + } else if (strcmp(*argv, "ethernet") == 0) { + /* ethernet pre-amble & interframe gap & FCS + * you may need to add vlan tag + */ + overhead += 38; + overhead_set = true; + mpu = 84; + + /* Additional Ethernet-related overhead used by some ISPs */ + } else if (strcmp(*argv, "ether-vlan") == 0) { + /* 802.1q VLAN tag - may be repeated */ + overhead += 4; + overhead_set = true; + + /* + * DOCSIS cable shapers account for Ethernet frame with FCS, + * but not interframe gap or preamble. + */ + } else if (strcmp(*argv, "docsis") == 0) { + atm = CAKE_ATM_NONE; + overhead += 18; + overhead_set = true; + mpu = 64; + } else if (strcmp(*argv, "overhead") == 0) { + char *p = NULL; + + NEXT_ARG(); + overhead = strtol(*argv, &p, 10); + if (!p || *p || overhead < -64 || overhead > 256) { + fprintf(stderr, + "Illegal \"overhead\", valid range is -64 to 256\\n"); + return -1; + } + overhead_set = true; + + } else if (strcmp(*argv, "mpu") == 0) { + char *p = NULL; + + NEXT_ARG(); + mpu = strtol(*argv, &p, 10); + if (!p || *p || mpu < 0 || mpu > 256) { + fprintf(stderr, + "Illegal \"mpu\", valid range is 0 to 256\\n"); + return -1; + } + } else if (strcmp(*argv, "ingress") == 0) { + ingress = 1; + } else if (strcmp(*argv, "egress") == 0) { + ingress = 0; + } else if (strcmp(*argv, "no-ack-filter") == 0) { + ack_filter = CAKE_ACK_NONE; + } else if (strcmp(*argv, "ack-filter") == 0) { + ack_filter = CAKE_ACK_FILTER; + } else if (strcmp(*argv, "ack-filter-aggressive") == 0) { + ack_filter = CAKE_ACK_AGGRESSIVE; + } else if (strcmp(*argv, "memlimit") == 0) { + NEXT_ARG(); + if (get_size(&memlimit, *argv)) { + fprintf(stderr, + "Illegal value for \"memlimit\": \"%s\"\n", *argv); + return -1; + } + } else if (strcmp(*argv, "fwmark") == 0) { + NEXT_ARG(); + if (get_u32(&fwmark, *argv, 0)) { + fprintf(stderr, + "Illegal value for \"fwmark\": \"%s\"\n", *argv); + return -1; + } + } else if (strcmp(*argv, "help") == 0) { + explain(); + return -1; + } else { + fprintf(stderr, "What is \"%s\"?\n", *argv); + explain(); + return -1; + } + argc--; argv++; + } + + tail = NLMSG_TAIL(n); + addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); + if (bandwidth || unlimited) + addattr_l(n, 1024, TCA_CAKE_BASE_RATE64, &bandwidth, + sizeof(bandwidth)); + if (diffserv != -1) + addattr_l(n, 1024, TCA_CAKE_DIFFSERV_MODE, &diffserv, + sizeof(diffserv)); + if (atm != -1) + addattr_l(n, 1024, TCA_CAKE_ATM, &atm, sizeof(atm)); + if (flowmode != -1) + addattr_l(n, 1024, TCA_CAKE_FLOW_MODE, &flowmode, + sizeof(flowmode)); + if (overhead_set) + addattr_l(n, 1024, TCA_CAKE_OVERHEAD, &overhead, + sizeof(overhead)); + if (overhead_override) { + unsigned int zero = 0; + + addattr_l(n, 1024, TCA_CAKE_RAW, &zero, sizeof(zero)); + } + if (mpu > 0) + addattr_l(n, 1024, TCA_CAKE_MPU, &mpu, sizeof(mpu)); + if (interval) + addattr_l(n, 1024, TCA_CAKE_RTT, &interval, sizeof(interval)); + if (target) + addattr_l(n, 1024, TCA_CAKE_TARGET, &target, sizeof(target)); + if (autorate != -1) + addattr_l(n, 1024, TCA_CAKE_AUTORATE, &autorate, + sizeof(autorate)); + if (memlimit) + addattr_l(n, 1024, TCA_CAKE_MEMORY, &memlimit, + sizeof(memlimit)); + if (fwmark) + addattr_l(n, 1024, TCA_CAKE_FWMARK, &fwmark, + sizeof(fwmark)); + if (nat != -1) + addattr_l(n, 1024, TCA_CAKE_NAT, &nat, sizeof(nat)); + if (wash != -1) + addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash)); + if (split_gso != -1) + addattr_l(n, 1024, TCA_CAKE_SPLIT_GSO, &split_gso, + sizeof(split_gso)); + if (ingress != -1) + addattr_l(n, 1024, TCA_CAKE_INGRESS, &ingress, sizeof(ingress)); + if (ack_filter != -1) + addattr_l(n, 1024, TCA_CAKE_ACK_FILTER, &ack_filter, + sizeof(ack_filter)); + + tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; + return 0; +} + +static void cake_print_mode(unsigned int value, unsigned int max, + const char *key, const char **table) +{ + if (value < max && table[value]) { + print_string(PRINT_ANY, key, "%s ", table[value]); + } else { + print_string(PRINT_JSON, key, NULL, "unknown"); + print_string(PRINT_FP, NULL, "(?%s?)", key); + } +} + +static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) +{ + struct rtattr *tb[TCA_CAKE_MAX + 1]; + unsigned int interval = 0; + unsigned int memlimit = 0; + unsigned int fwmark = 0; + __u64 bandwidth = 0; + int ack_filter = 0; + int split_gso = 0; + int overhead = 0; + int autorate = 0; + int ingress = 0; + int wash = 0; + int raw = 0; + int mpu = 0; + int atm = 0; + int nat = 0; + + SPRINT_BUF(b2); + + if (opt == NULL) + return 0; + + parse_rtattr_nested(tb, TCA_CAKE_MAX, opt); + + if (tb[TCA_CAKE_BASE_RATE64] && + RTA_PAYLOAD(tb[TCA_CAKE_BASE_RATE64]) >= sizeof(bandwidth)) { + bandwidth = rta_getattr_u64(tb[TCA_CAKE_BASE_RATE64]); + if (bandwidth) + tc_print_rate(PRINT_ANY, "bandwidth", "bandwidth %s ", + bandwidth); + else + print_string(PRINT_ANY, "bandwidth", "bandwidth %s ", + "unlimited"); + } + if (tb[TCA_CAKE_AUTORATE] && + RTA_PAYLOAD(tb[TCA_CAKE_AUTORATE]) >= sizeof(__u32)) { + autorate = rta_getattr_u32(tb[TCA_CAKE_AUTORATE]); + if (autorate == 1) + print_string(PRINT_ANY, "autorate", "%s ", + "autorate-ingress"); + else if (autorate) + print_string(PRINT_ANY, "autorate", "(?autorate?) ", + "unknown"); + } + if (tb[TCA_CAKE_DIFFSERV_MODE] && + RTA_PAYLOAD(tb[TCA_CAKE_DIFFSERV_MODE]) >= sizeof(__u32)) { + cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_DIFFSERV_MODE]), + CAKE_DIFFSERV_MAX, "diffserv", diffserv_names); + } + if (tb[TCA_CAKE_FLOW_MODE] && + RTA_PAYLOAD(tb[TCA_CAKE_FLOW_MODE]) >= sizeof(__u32)) { + cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_FLOW_MODE]), + CAKE_FLOW_MAX, "flowmode", flowmode_names); + } + + if (tb[TCA_CAKE_NAT] && + RTA_PAYLOAD(tb[TCA_CAKE_NAT]) >= sizeof(__u32)) { + nat = rta_getattr_u32(tb[TCA_CAKE_NAT]); + } + + if (nat) + print_string(PRINT_FP, NULL, "nat ", NULL); + else + print_string(PRINT_FP, NULL, "nonat ", NULL); + print_bool(PRINT_JSON, "nat", NULL, nat); + + if (tb[TCA_CAKE_WASH] && + RTA_PAYLOAD(tb[TCA_CAKE_WASH]) >= sizeof(__u32)) { + wash = rta_getattr_u32(tb[TCA_CAKE_WASH]); + } + if (tb[TCA_CAKE_ATM] && + RTA_PAYLOAD(tb[TCA_CAKE_ATM]) >= sizeof(__u32)) { + atm = rta_getattr_u32(tb[TCA_CAKE_ATM]); + } + if (tb[TCA_CAKE_OVERHEAD] && + RTA_PAYLOAD(tb[TCA_CAKE_OVERHEAD]) >= sizeof(__s32)) { + overhead = *(__s32 *) RTA_DATA(tb[TCA_CAKE_OVERHEAD]); + } + if (tb[TCA_CAKE_MPU] && + RTA_PAYLOAD(tb[TCA_CAKE_MPU]) >= sizeof(__u32)) { + mpu = rta_getattr_u32(tb[TCA_CAKE_MPU]); + } + if (tb[TCA_CAKE_INGRESS] && + RTA_PAYLOAD(tb[TCA_CAKE_INGRESS]) >= sizeof(__u32)) { + ingress = rta_getattr_u32(tb[TCA_CAKE_INGRESS]); + } + if (tb[TCA_CAKE_ACK_FILTER] && + RTA_PAYLOAD(tb[TCA_CAKE_ACK_FILTER]) >= sizeof(__u32)) { + ack_filter = rta_getattr_u32(tb[TCA_CAKE_ACK_FILTER]); + } + if (tb[TCA_CAKE_SPLIT_GSO] && + RTA_PAYLOAD(tb[TCA_CAKE_SPLIT_GSO]) >= sizeof(__u32)) { + split_gso = rta_getattr_u32(tb[TCA_CAKE_SPLIT_GSO]); + } + if (tb[TCA_CAKE_RAW]) { + raw = 1; + } + if (tb[TCA_CAKE_RTT] && + RTA_PAYLOAD(tb[TCA_CAKE_RTT]) >= sizeof(__u32)) { + interval = rta_getattr_u32(tb[TCA_CAKE_RTT]); + } + if (tb[TCA_CAKE_MEMORY] && + RTA_PAYLOAD(tb[TCA_CAKE_MEMORY]) >= sizeof(__u32)) { + memlimit = rta_getattr_u32(tb[TCA_CAKE_MEMORY]); + } + if (tb[TCA_CAKE_FWMARK] && + RTA_PAYLOAD(tb[TCA_CAKE_FWMARK]) >= sizeof(__u32)) { + fwmark = rta_getattr_u32(tb[TCA_CAKE_FWMARK]); + } + + if (wash) + print_string(PRINT_FP, NULL, "wash ", NULL); + else + print_string(PRINT_FP, NULL, "nowash ", NULL); + print_bool(PRINT_JSON, "wash", NULL, wash); + + if (ingress) + print_string(PRINT_FP, NULL, "ingress ", NULL); + print_bool(PRINT_JSON, "ingress", NULL, ingress); + + if (ack_filter == CAKE_ACK_AGGRESSIVE) + print_string(PRINT_ANY, "ack-filter", "ack-filter-%s ", + "aggressive"); + else if (ack_filter == CAKE_ACK_FILTER) + print_string(PRINT_ANY, "ack-filter", "ack-filter ", "enabled"); + else + print_string(PRINT_ANY, "ack-filter", "no-ack-filter ", "disabled"); + + if (split_gso) + print_string(PRINT_FP, NULL, "split-gso ", NULL); + else + print_string(PRINT_FP, NULL, "no-split-gso ", NULL); + print_bool(PRINT_JSON, "split_gso", NULL, split_gso); + + if (interval) + print_string(PRINT_FP, NULL, "rtt %s ", + sprint_time(interval, b2)); + print_uint(PRINT_JSON, "rtt", NULL, interval); + + if (raw) + print_string(PRINT_FP, NULL, "raw ", NULL); + print_bool(PRINT_JSON, "raw", NULL, raw); + + if (atm == CAKE_ATM_ATM) + print_string(PRINT_ANY, "atm", "%s ", "atm"); + else if (atm == CAKE_ATM_PTM) + print_string(PRINT_ANY, "atm", "%s ", "ptm"); + else if (!raw) + print_string(PRINT_ANY, "atm", "%s ", "noatm"); + + print_int(PRINT_ANY, "overhead", "overhead %d ", overhead); + + if (mpu) + print_uint(PRINT_ANY, "mpu", "mpu %u ", mpu); + + if (memlimit) + print_size(PRINT_ANY, "memlimit", "memlimit %s ", memlimit); + + if (fwmark) + print_uint(PRINT_FP, NULL, "fwmark 0x%x ", fwmark); + print_0xhex(PRINT_JSON, "fwmark", NULL, fwmark); + + return 0; +} + +static void cake_print_json_tin(struct rtattr **tstat) +{ +#define PRINT_TSTAT_JSON(type, name, attr) if (tstat[TCA_CAKE_TIN_STATS_ ## attr]) \ + print_u64(PRINT_JSON, name, NULL, \ + rta_getattr_ ## type((struct rtattr *) \ + tstat[TCA_CAKE_TIN_STATS_ ## attr])) + + open_json_object(NULL); + PRINT_TSTAT_JSON(u64, "threshold_rate", THRESHOLD_RATE64); + PRINT_TSTAT_JSON(u64, "sent_bytes", SENT_BYTES64); + PRINT_TSTAT_JSON(u32, "backlog_bytes", BACKLOG_BYTES); + PRINT_TSTAT_JSON(u32, "target_us", TARGET_US); + PRINT_TSTAT_JSON(u32, "interval_us", INTERVAL_US); + PRINT_TSTAT_JSON(u32, "peak_delay_us", PEAK_DELAY_US); + PRINT_TSTAT_JSON(u32, "avg_delay_us", AVG_DELAY_US); + PRINT_TSTAT_JSON(u32, "base_delay_us", BASE_DELAY_US); + PRINT_TSTAT_JSON(u32, "sent_packets", SENT_PACKETS); + PRINT_TSTAT_JSON(u32, "way_indirect_hits", WAY_INDIRECT_HITS); + PRINT_TSTAT_JSON(u32, "way_misses", WAY_MISSES); + PRINT_TSTAT_JSON(u32, "way_collisions", WAY_COLLISIONS); + PRINT_TSTAT_JSON(u32, "drops", DROPPED_PACKETS); + PRINT_TSTAT_JSON(u32, "ecn_mark", ECN_MARKED_PACKETS); + PRINT_TSTAT_JSON(u32, "ack_drops", ACKS_DROPPED_PACKETS); + PRINT_TSTAT_JSON(u32, "sparse_flows", SPARSE_FLOWS); + PRINT_TSTAT_JSON(u32, "bulk_flows", BULK_FLOWS); + PRINT_TSTAT_JSON(u32, "unresponsive_flows", UNRESPONSIVE_FLOWS); + PRINT_TSTAT_JSON(u32, "max_pkt_len", MAX_SKBLEN); + PRINT_TSTAT_JSON(u32, "flow_quantum", FLOW_QUANTUM); + close_json_object(); + +#undef PRINT_TSTAT_JSON +} + +static int cake_print_xstats(struct qdisc_util *qu, FILE *f, + struct rtattr *xstats) +{ + struct rtattr *st[TCA_CAKE_STATS_MAX + 1]; + SPRINT_BUF(b1); + int i; + + if (xstats == NULL) + return 0; + +#define GET_STAT_U32(attr) rta_getattr_u32(st[TCA_CAKE_STATS_ ## attr]) +#define GET_STAT_S32(attr) (*(__s32 *)RTA_DATA(st[TCA_CAKE_STATS_ ## attr])) +#define GET_STAT_U64(attr) rta_getattr_u64(st[TCA_CAKE_STATS_ ## attr]) + + parse_rtattr_nested(st, TCA_CAKE_STATS_MAX, xstats); + + if (st[TCA_CAKE_STATS_MEMORY_USED] && + st[TCA_CAKE_STATS_MEMORY_LIMIT]) { + print_size(PRINT_FP, NULL, " memory used: %s", + GET_STAT_U32(MEMORY_USED)); + + print_size(PRINT_FP, NULL, " of %s\n", + GET_STAT_U32(MEMORY_LIMIT)); + + print_uint(PRINT_JSON, "memory_used", NULL, + GET_STAT_U32(MEMORY_USED)); + print_uint(PRINT_JSON, "memory_limit", NULL, + GET_STAT_U32(MEMORY_LIMIT)); + } + + if (st[TCA_CAKE_STATS_CAPACITY_ESTIMATE64]) + tc_print_rate(PRINT_ANY, "capacity_estimate", + " capacity estimate: %s\n", + GET_STAT_U64(CAPACITY_ESTIMATE64)); + + if (st[TCA_CAKE_STATS_MIN_NETLEN] && + st[TCA_CAKE_STATS_MAX_NETLEN]) { + print_uint(PRINT_ANY, "min_network_size", + " min/max network layer size: %12u", + GET_STAT_U32(MIN_NETLEN)); + print_uint(PRINT_ANY, "max_network_size", + " /%8u\n", GET_STAT_U32(MAX_NETLEN)); + } + + if (st[TCA_CAKE_STATS_MIN_ADJLEN] && + st[TCA_CAKE_STATS_MAX_ADJLEN]) { + print_uint(PRINT_ANY, "min_adj_size", + " min/max overhead-adjusted size: %8u", + GET_STAT_U32(MIN_ADJLEN)); + print_uint(PRINT_ANY, "max_adj_size", + " /%8u\n", GET_STAT_U32(MAX_ADJLEN)); + } + + if (st[TCA_CAKE_STATS_AVG_NETOFF]) + print_uint(PRINT_ANY, "avg_hdr_offset", + " average network hdr offset: %12u\n\n", + GET_STAT_U32(AVG_NETOFF)); + + /* class stats */ + if (st[TCA_CAKE_STATS_DEFICIT]) + print_int(PRINT_ANY, "deficit", " deficit %d", + GET_STAT_S32(DEFICIT)); + if (st[TCA_CAKE_STATS_COBALT_COUNT]) + print_uint(PRINT_ANY, "count", " count %u", + GET_STAT_U32(COBALT_COUNT)); + + if (st[TCA_CAKE_STATS_DROPPING] && GET_STAT_U32(DROPPING)) { + print_bool(PRINT_ANY, "dropping", " dropping", true); + if (st[TCA_CAKE_STATS_DROP_NEXT_US]) { + int drop_next = GET_STAT_S32(DROP_NEXT_US); + + if (drop_next < 0) { + print_string(PRINT_FP, NULL, " drop_next -%s", + sprint_time(-drop_next, b1)); + } else { + print_uint(PRINT_JSON, "drop_next", NULL, + drop_next); + print_string(PRINT_FP, NULL, " drop_next %s", + sprint_time(drop_next, b1)); + } + } + } + + if (st[TCA_CAKE_STATS_P_DROP]) { + print_uint(PRINT_ANY, "blue_prob", " blue_prob %u", + GET_STAT_U32(P_DROP)); + if (st[TCA_CAKE_STATS_BLUE_TIMER_US]) { + int blue_timer = GET_STAT_S32(BLUE_TIMER_US); + + if (blue_timer < 0) { + print_string(PRINT_FP, NULL, " blue_timer -%s", + sprint_time(blue_timer, b1)); + } else { + print_uint(PRINT_JSON, "blue_timer", NULL, + blue_timer); + print_string(PRINT_FP, NULL, " blue_timer %s", + sprint_time(blue_timer, b1)); + } + } + } + +#undef GET_STAT_U32 +#undef GET_STAT_S32 +#undef GET_STAT_U64 + + if (st[TCA_CAKE_STATS_TIN_STATS]) { + struct rtattr *tstat[TC_CAKE_MAX_TINS][TCA_CAKE_TIN_STATS_MAX + 1]; + struct rtattr *tins[TC_CAKE_MAX_TINS + 1]; + int num_tins = 0; + + parse_rtattr_nested(tins, TC_CAKE_MAX_TINS, + st[TCA_CAKE_STATS_TIN_STATS]); + + for (i = 1; i <= TC_CAKE_MAX_TINS && tins[i]; i++) { + parse_rtattr_nested(tstat[i-1], TCA_CAKE_TIN_STATS_MAX, + tins[i]); + num_tins++; + } + + if (!num_tins) + return 0; + + if (is_json_context()) { + open_json_array(PRINT_JSON, "tins"); + for (i = 0; i < num_tins; i++) + cake_print_json_tin(tstat[i]); + close_json_array(PRINT_JSON, NULL); + + return 0; + } + + + switch (num_tins) { + case 3: + fprintf(f, " Bulk Best Effort Voice\n"); + break; + + case 4: + fprintf(f, " Bulk Best Effort Video Voice\n"); + break; + + default: + fprintf(f, " "); + for (i = 0; i < num_tins; i++) + fprintf(f, " Tin %u", i); + fprintf(f, "%s", _SL_); + }; + +#define GET_TSTAT(i, attr) (tstat[i][TCA_CAKE_TIN_STATS_ ## attr]) +#define PRINT_TSTAT(name, attr, fmts, val) do { \ + if (GET_TSTAT(0, attr)) { \ + fprintf(f, name); \ + for (i = 0; i < num_tins; i++) \ + fprintf(f, " %12" fmts, val); \ + fprintf(f, "%s", _SL_); \ + } \ + } while (0) + +#define SPRINT_TSTAT(pfunc, type, name, attr) PRINT_TSTAT( \ + name, attr, "s", sprint_ ## pfunc( \ + rta_getattr_ ## type(GET_TSTAT(i, attr)), b1)) + +#define PRINT_TSTAT_U32(name, attr) PRINT_TSTAT( \ + name, attr, "u", rta_getattr_u32(GET_TSTAT(i, attr))) + +#define PRINT_TSTAT_U64(name, attr) PRINT_TSTAT( \ + name, attr, "llu", rta_getattr_u64(GET_TSTAT(i, attr))) + + if (GET_TSTAT(0, THRESHOLD_RATE64)) { + fprintf(f, " thresh "); + for (i = 0; i < num_tins; i++) + tc_print_rate(PRINT_FP, NULL, " %12s", + rta_getattr_u64(GET_TSTAT(i, THRESHOLD_RATE64))); + fprintf(f, "%s", _SL_); + } + + SPRINT_TSTAT(time, u32, " target ", TARGET_US); + SPRINT_TSTAT(time, u32, " interval", INTERVAL_US); + SPRINT_TSTAT(time, u32, " pk_delay", PEAK_DELAY_US); + SPRINT_TSTAT(time, u32, " av_delay", AVG_DELAY_US); + SPRINT_TSTAT(time, u32, " sp_delay", BASE_DELAY_US); + SPRINT_TSTAT(size, u32, " backlog ", BACKLOG_BYTES); + + PRINT_TSTAT_U32(" pkts ", SENT_PACKETS); + PRINT_TSTAT_U64(" bytes ", SENT_BYTES64); + + PRINT_TSTAT_U32(" way_inds", WAY_INDIRECT_HITS); + PRINT_TSTAT_U32(" way_miss", WAY_MISSES); + PRINT_TSTAT_U32(" way_cols", WAY_COLLISIONS); + PRINT_TSTAT_U32(" drops ", DROPPED_PACKETS); + PRINT_TSTAT_U32(" marks ", ECN_MARKED_PACKETS); + PRINT_TSTAT_U32(" ack_drop", ACKS_DROPPED_PACKETS); + PRINT_TSTAT_U32(" sp_flows", SPARSE_FLOWS); + PRINT_TSTAT_U32(" bk_flows", BULK_FLOWS); + PRINT_TSTAT_U32(" un_flows", UNRESPONSIVE_FLOWS); + PRINT_TSTAT_U32(" max_len ", MAX_SKBLEN); + PRINT_TSTAT_U32(" quantum ", FLOW_QUANTUM); + +#undef GET_STAT +#undef PRINT_TSTAT +#undef SPRINT_TSTAT +#undef PRINT_TSTAT_U32 +#undef PRINT_TSTAT_U64 + } + return 0; +} + +struct qdisc_util cake_qdisc_util = { + .id = "cake", + .parse_qopt = cake_parse_opt, + .print_qopt = cake_print_opt, + .print_xstats = cake_print_xstats, +}; |