tc: add support for FQ-PIE packet scheduler
This patch adds support for the FQ-PIE packet Scheduler
Principles:
- Packets are classified on flows.
- This is a Stochastic model (as we use a hash, several flows might
be hashed to the same slot)
- Each flow has a PIE managed queue.
- Flows are linked onto two (Round Robin) lists,
so that new flows have priority on old ones.
- For a given flow, packets are not reordered.
- Drops during enqueue only.
- ECN capability is off by default.
- ECN threshold (if ECN is enabled) is at 10% by default.
- Uses timestamps to calculate queue delay by default.
Usage:
tc qdisc ... fq_pie [ limit PACKETS ] [ flows NUMBER ]
[ target TIME ] [ tupdate TIME ]
[ alpha NUMBER ] [ beta NUMBER ]
[ quantum BYTES ] [ memory_limit BYTES ]
[ ecn_prob PERCENTAGE ] [ [no]ecn ]
[ [no]bytemode ] [ [no_]dq_rate_estimator ]
defaults:
limit: 10240 packets, flows: 1024
target: 15 ms, tupdate: 15 ms (in jiffies)
alpha: 1/8, beta : 5/4
quantum: device MTU, memory_limit: 32 Mb
ecnprob: 10%, ecn: off
bytemode: off, dq_rate_estimator: off
Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Signed-off-by: Sachin D. Patil <sdp.sachin@gmail.com>
Signed-off-by: V. Saicharan <vsaicharan1998@gmail.com>
Signed-off-by: Mohit Bhasi <mohitbhasi1998@gmail.com>
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: Gautam Ramakrishnan <gautamramk@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Mohit P. Tahiliani
Stephen Hemminger
parent
39995691b5
commit
9dced637f8
|
|
@ -3,8 +3,8 @@
|
||||||
# Copyright 2016 Quentin Monnet <quentin.monnet@6wind.com>
|
# Copyright 2016 Quentin Monnet <quentin.monnet@6wind.com>
|
||||||
|
|
||||||
QDISC_KIND=' choke codel bfifo pfifo pfifo_head_drop fq fq_codel gred hhf \
|
QDISC_KIND=' choke codel bfifo pfifo pfifo_head_drop fq fq_codel gred hhf \
|
||||||
mqprio multiq netem pfifo_fast pie red rr sfb sfq tbf atm cbq drr \
|
mqprio multiq netem pfifo_fast pie fq_pie red rr sfb sfq tbf atm \
|
||||||
dsmark hfsc htb prio qfq '
|
cbq drr dsmark hfsc htb prio qfq '
|
||||||
FILTER_KIND=' basic bpf cgroup flow flower fw route rsvp tcindex u32 matchall '
|
FILTER_KIND=' basic bpf cgroup flow flower fw route rsvp tcindex u32 matchall '
|
||||||
ACTION_KIND=' gact mirred bpf sample '
|
ACTION_KIND=' gact mirred bpf sample '
|
||||||
|
|
||||||
|
|
@ -326,6 +326,14 @@ _tc_qdisc_options()
|
||||||
_tc_one_of_list 'dq_rate_estimator no_dq_rate_estimator'
|
_tc_one_of_list 'dq_rate_estimator no_dq_rate_estimator'
|
||||||
return 0
|
return 0
|
||||||
;;
|
;;
|
||||||
|
fq_pie)
|
||||||
|
_tc_once_attr 'limit flows target tupdate \
|
||||||
|
alpha beta quantum memory_limit ecn_prob'
|
||||||
|
_tc_one_of_list 'ecn noecn'
|
||||||
|
_tc_one_of_list 'bytemode nobytemode'
|
||||||
|
_tc_one_of_list 'dq_rate_estimator no_dq_rate_estimator'
|
||||||
|
return 0
|
||||||
|
;;
|
||||||
red)
|
red)
|
||||||
_tc_once_attr 'limit min max avpkt burst adaptive probability \
|
_tc_once_attr 'limit min max avpkt burst adaptive probability \
|
||||||
bandwidth ecn harddrop'
|
bandwidth ecn harddrop'
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,166 @@
|
||||||
|
.TH FQ-PIE 8 "23 January 2020" "iproute2" "Linux"
|
||||||
|
|
||||||
|
.SH NAME
|
||||||
|
|
||||||
|
FQ-PIE - Flow Queue Proportional Integral controller Enhanced
|
||||||
|
|
||||||
|
.SH SYNOPSIS
|
||||||
|
|
||||||
|
.B tc qdisc ... fq_pie
|
||||||
|
[ \fBlimit\fR PACKETS ] [ \fBflows\fR NUMBER ]
|
||||||
|
.br
|
||||||
|
\
|
||||||
|
[ \fBtarget\fR TIME ] [ \fBtupdate\fR TIME ]
|
||||||
|
.br
|
||||||
|
\
|
||||||
|
[ \fBalpha\fR NUMBER ] [ \fBbeta\fR NUMBER ]
|
||||||
|
.br
|
||||||
|
\
|
||||||
|
[ \fBquantum\fR BYTES ] [ \fBmemory_limit\fR BYTES ]
|
||||||
|
.br
|
||||||
|
\
|
||||||
|
[ \fBecn_prob\fR PERENTAGE ] [ [\fBno\fR]\fBecn\fR ]
|
||||||
|
.br
|
||||||
|
\
|
||||||
|
[ [\fBno\fR]\fBbytemode\fR ] [ [\fBno_\fR]\fBdq_rate_estimator\fR ]
|
||||||
|
|
||||||
|
.SH DESCRIPTION
|
||||||
|
FQ-PIE (Flow Queuing with Proportional Integral controller Enhanced) is a
|
||||||
|
queuing discipline that combines Flow Queuing with the PIE AQM scheme. FQ-PIE
|
||||||
|
uses a Jenkins hash function to classify incoming packets into different flows
|
||||||
|
and is used to provide a fair share of the bandwidth to all the flows using the
|
||||||
|
qdisc. Each such flow is managed by the PIE algorithm.
|
||||||
|
|
||||||
|
.SH ALGORITHM
|
||||||
|
The FQ-PIE algorithm consists of two logical parts: the scheduler which selects
|
||||||
|
which queue to dequeue a packet from, and the PIE AQM which works on each of the
|
||||||
|
queues. The major work of FQ-PIE is mostly in the scheduling part. The
|
||||||
|
interaction between the scheduler and the PIE algorithm is straight forward.
|
||||||
|
|
||||||
|
During the enqueue stage, a hashing-based scheme is used, where flows are hashed
|
||||||
|
into a number of buckets with each bucket having its own queue. The number of
|
||||||
|
buckets is configurable, and presently defaults to 1024 in the implementation.
|
||||||
|
The flow hashing is performed on the 5-tuple of source and destination IP
|
||||||
|
addresses, port numbers and IP protocol number. Once the packet has been
|
||||||
|
successfully classified into a queue, it is handed over to the PIE algorithm
|
||||||
|
for enqueuing. It is then added to the tail of the selected queue, and the
|
||||||
|
queue's byte count is updated by the packet size. If the queue is not currently
|
||||||
|
active (i.e., if it is not in either the list of new or the list of old queues)
|
||||||
|
, it is added to the end of the list of new queues, and its number of credits
|
||||||
|
is initiated to the configured quantum. Otherwise, the queue is left in its
|
||||||
|
current queue list.
|
||||||
|
|
||||||
|
During the dequeue stage, the scheduler first looks at the list of new queues;
|
||||||
|
for the queue at the head of that list, if that queue has a negative number of
|
||||||
|
credits (i.e., it has already dequeued at least a quantum of bytes), it is given
|
||||||
|
an additional quantum of credits, the queue is put onto the end of the list of
|
||||||
|
old queues, and the routine selects the next queue and starts again. Otherwise,
|
||||||
|
that queue is selected for dequeue again. If the list of new queues is empty,
|
||||||
|
the scheduler proceeds down the list of old queues in the same fashion
|
||||||
|
(checking the credits, and either selecting the queue for dequeuing, or adding
|
||||||
|
credits and putting the queue back at the end of the list). After having
|
||||||
|
selected a queue from which to dequeue a packet, the PIE algorithm is invoked
|
||||||
|
on that queue.
|
||||||
|
|
||||||
|
Finally, if the PIE algorithm does not return a packet, then the queue must be
|
||||||
|
empty and the scheduler does one of two things:
|
||||||
|
|
||||||
|
If the queue selected for dequeue came from the list of new queues, it is moved
|
||||||
|
to the end of the list of old queues. If instead it came from the list of old
|
||||||
|
queues, that queue is removed from the list, to be added back (as a new queue)
|
||||||
|
the next time a packet arrives that hashes to that queue. Then (since no packet
|
||||||
|
was available for dequeue), the whole dequeue process is restarted from the
|
||||||
|
beginning.
|
||||||
|
|
||||||
|
If, instead, the scheduler did get a packet back from the PIE algorithm, it
|
||||||
|
subtracts the size of the packet from the byte credits for the selected queue
|
||||||
|
and returns the packet as the result of the dequeue operation.
|
||||||
|
|
||||||
|
.SH PARAMETERS
|
||||||
|
.SS limit
|
||||||
|
It is the limit on the queue size in packets. Incoming packets are dropped when
|
||||||
|
the limit is reached. The default value is 10240 packets.
|
||||||
|
|
||||||
|
.SS flows
|
||||||
|
It is the number of flows into which the incoming packets are classified. Due
|
||||||
|
to the stochastic nature of hashing, multiple flows may end up being hashed
|
||||||
|
into the same slot. Newer flows have priority over older ones. This
|
||||||
|
parameter can be set only at load time since memory has to be allocated for
|
||||||
|
the hash table. The default value is 1024.
|
||||||
|
|
||||||
|
.SS target
|
||||||
|
It is the queue delay which the PIE algorithm tries to maintain. The default
|
||||||
|
target delay is 15ms.
|
||||||
|
|
||||||
|
.SS tupdate
|
||||||
|
It is the time interval at which the system drop probability is calculated.
|
||||||
|
The default is 15ms.
|
||||||
|
|
||||||
|
.SS alpha
|
||||||
|
.SS beta
|
||||||
|
alpha and beta are parameters chosen to control the drop probability. These
|
||||||
|
should be in the range between 0 and 32.
|
||||||
|
|
||||||
|
.SS quantum
|
||||||
|
quantum signifies the number of bytes that may be dequeued from a queue before
|
||||||
|
switching to the next queue in the deficit round robin scheme.
|
||||||
|
|
||||||
|
.SS memory_limit
|
||||||
|
It is the maximum total memory allowed for packets of all flows. The default is
|
||||||
|
32Mb.
|
||||||
|
|
||||||
|
.SS ecn_prob
|
||||||
|
It is the drop probability threshold below which packets will be ECN marked
|
||||||
|
instead of getting dropped. The default is 10%. Setting this parameter requires
|
||||||
|
\fBecn\fR to be enabled.
|
||||||
|
|
||||||
|
.SS \fR[\fBno\fR]\fBecn\fR
|
||||||
|
It has the same semantics as \fBpie\fR and can be used to mark packets
|
||||||
|
instead of dropping them. If \fBecn\fR has been enabled, \fBnoecn\fR can
|
||||||
|
be used to turn it off and vice-a-versa.
|
||||||
|
|
||||||
|
.SS \fR[\fBno\fR]\fBbytemode\fR
|
||||||
|
It is used to scale drop probability proportional to packet size
|
||||||
|
\fBbytemode\fR to turn on bytemode, \fBnobytemode\fR to turn off
|
||||||
|
bytemode. By default, \fBbytemode\fR is turned off.
|
||||||
|
|
||||||
|
.SS \fR[\fBno_\fR]\fBdq_rate_estimator\fR
|
||||||
|
\fBdq_rate_estimator\fR can be used to calculate queue delay using Little's
|
||||||
|
Law, \fBno_dq_rate_estimator\fR can be used to calculate queue delay
|
||||||
|
using timestamp. By default, \fBdq_rate_estimator\fR is turned off.
|
||||||
|
|
||||||
|
.SH EXAMPLES
|
||||||
|
# tc qdisc add dev eth0 root fq_pie
|
||||||
|
.br
|
||||||
|
# tc -s qdisc show dev eth0
|
||||||
|
.br
|
||||||
|
qdisc fq_pie 8001: root refcnt 2 limit 10240p flows 1024 target 15.0ms tupdate
|
||||||
|
16.0ms alpha 2 beta 20 quantum 1514b memory_limit 32Mb ecn_prob 10
|
||||||
|
Sent 159173586 bytes 105261 pkt (dropped 24, overlimits 0 requeues 0)
|
||||||
|
backlog 75700b 50p requeues 0
|
||||||
|
pkts_in 105311 overlimit 0 overmemory 0 dropped 24 ecn_mark 0
|
||||||
|
new_flow_count 7332 new_flows_len 0 old_flows_len 4 memory_used 108800
|
||||||
|
|
||||||
|
# tc qdisc add dev eth0 root fq_pie dq_rate_estimator
|
||||||
|
.br
|
||||||
|
# tc -s qdisc show dev eth0
|
||||||
|
.br
|
||||||
|
qdisc fq_pie 8001: root refcnt 2 limit 10240p flows 1024 target 15.0ms tupdate
|
||||||
|
16.0ms alpha 2 beta 20 quantum 1514b memory_limit 32Mb ecn_prob 10
|
||||||
|
dq_rate_estimator
|
||||||
|
Sent 8263620 bytes 5550 pkt (dropped 4, overlimits 0 requeues 0)
|
||||||
|
backlog 805448b 532p requeues 0
|
||||||
|
pkts_in 6082 overlimit 0 overmemory 0 dropped 4 ecn_mark 0
|
||||||
|
new_flow_count 94 new_flows_len 0 old_flows_len 8 memory_used 1157632
|
||||||
|
|
||||||
|
.SH SEE ALSO
|
||||||
|
.BR tc (8),
|
||||||
|
.BR tc-pie (8),
|
||||||
|
.BR tc-fq_codel (8)
|
||||||
|
|
||||||
|
.SH SOURCES
|
||||||
|
RFC 8033: https://tools.ietf.org/html/rfc8033
|
||||||
|
|
||||||
|
.SH AUTHORS
|
||||||
|
FQ-PIE was implemented by Mohit P. Tahiliani. Please report corrections to the
|
||||||
|
Linux Networking mailing list <netdev@vger.kernel.org>.
|
||||||
|
|
@ -284,6 +284,13 @@ bandwidth to all the flows using the queue. Each such flow is managed by the
|
||||||
CoDel queuing discipline. Reordering within a flow is avoided since Codel
|
CoDel queuing discipline. Reordering within a flow is avoided since Codel
|
||||||
internally uses a FIFO queue.
|
internally uses a FIFO queue.
|
||||||
.TP
|
.TP
|
||||||
|
fq_pie
|
||||||
|
FQ-PIE (Flow Queuing with Proportional Integral controller Enhanced) is a
|
||||||
|
queuing discipline that combines Flow Queuing with the PIE AQM scheme. FQ-PIE
|
||||||
|
uses a Jenkins hash function to classify incoming packets into different flows
|
||||||
|
and is used to provide a fair share of the bandwidth to all the flows using the
|
||||||
|
qdisc. Each such flow is managed by the PIE algorithm.
|
||||||
|
.TP
|
||||||
gred
|
gred
|
||||||
Generalized Random Early Detection combines multiple RED queues in order to
|
Generalized Random Early Detection combines multiple RED queues in order to
|
||||||
achieve multiple drop priorities. This is required to realize Assured
|
achieve multiple drop priorities. This is required to realize Assured
|
||||||
|
|
@ -855,6 +862,7 @@ was written by Alexey N. Kuznetsov and added in Linux 2.2.
|
||||||
.BR tc-flower (8),
|
.BR tc-flower (8),
|
||||||
.BR tc-fq (8),
|
.BR tc-fq (8),
|
||||||
.BR tc-fq_codel (8),
|
.BR tc-fq_codel (8),
|
||||||
|
.BR tc-fq_pie (8),
|
||||||
.BR tc-fw (8),
|
.BR tc-fw (8),
|
||||||
.BR tc-hfsc (7),
|
.BR tc-hfsc (7),
|
||||||
.BR tc-hfsc (8),
|
.BR tc-hfsc (8),
|
||||||
|
|
|
||||||
|
|
@ -70,6 +70,7 @@ TCMODULES += q_codel.o
|
||||||
TCMODULES += q_fq_codel.o
|
TCMODULES += q_fq_codel.o
|
||||||
TCMODULES += q_fq.o
|
TCMODULES += q_fq.o
|
||||||
TCMODULES += q_pie.o
|
TCMODULES += q_pie.o
|
||||||
|
TCMODULES += q_fq_pie.o
|
||||||
TCMODULES += q_cake.o
|
TCMODULES += q_cake.o
|
||||||
TCMODULES += q_hhf.o
|
TCMODULES += q_hhf.o
|
||||||
TCMODULES += q_clsact.o
|
TCMODULES += q_clsact.o
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,318 @@
|
||||||
|
// SPDX-License-Identifier: GPL-2.0-only
|
||||||
|
/*
|
||||||
|
* Flow Queue PIE
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 Mohit P. Tahiliani <tahiliani@nitk.edu.in>
|
||||||
|
* Copyright (C) 2019 Sachin D. Patil <sdp.sachin@gmail.com>
|
||||||
|
* Copyright (C) 2019 V. Saicharan <vsaicharan1998@gmail.com>
|
||||||
|
* Copyright (C) 2019 Mohit Bhasi <mohitbhasi1998@gmail.com>
|
||||||
|
* Copyright (C) 2019 Leslie Monis <lesliemonis@gmail.com>
|
||||||
|
* Copyright (C) 2019 Gautam Ramakrishnan <gautamramk@gmail.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#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: ... fq_pie [ limit PACKETS ] [ flows NUMBER ]\n"
|
||||||
|
" [ target TIME ] [ tupdate TIME ]\n"
|
||||||
|
" [ alpha NUMBER ] [ beta NUMBER ]\n"
|
||||||
|
" [ quantum BYTES ] [ memory_limit BYTES ]\n"
|
||||||
|
" [ ecn_prob PERCENTAGE ] [ [no]ecn ]\n"
|
||||||
|
" [ [no]bytemode ] [ [no_]dq_rate_estimator ]\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
#define ALPHA_MAX 32
|
||||||
|
#define BETA_MAX 32
|
||||||
|
|
||||||
|
static int fq_pie_parse_opt(struct qdisc_util *qu, int argc, char **argv,
|
||||||
|
struct nlmsghdr *n, const char *dev)
|
||||||
|
{
|
||||||
|
unsigned int limit = 0;
|
||||||
|
unsigned int flows = 0;
|
||||||
|
unsigned int target = 0;
|
||||||
|
unsigned int tupdate = 0;
|
||||||
|
unsigned int alpha = 0;
|
||||||
|
unsigned int beta = 0;
|
||||||
|
unsigned int quantum = 0;
|
||||||
|
unsigned int memory_limit = 0;
|
||||||
|
unsigned int ecn_prob = 0;
|
||||||
|
int ecn = -1;
|
||||||
|
int bytemode = -1;
|
||||||
|
int dq_rate_estimator = -1;
|
||||||
|
struct rtattr *tail;
|
||||||
|
|
||||||
|
while (argc > 0) {
|
||||||
|
if (strcmp(*argv, "limit") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_unsigned(&limit, *argv, 0)) {
|
||||||
|
fprintf(stderr, "Illegal \"limit\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "flows") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_unsigned(&flows, *argv, 0)) {
|
||||||
|
fprintf(stderr, "Illegal \"flows\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "target") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_time(&target, *argv)) {
|
||||||
|
fprintf(stderr, "Illegal \"target\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "tupdate") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_time(&tupdate, *argv)) {
|
||||||
|
fprintf(stderr, "Illegal \"tupdate\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "alpha") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_unsigned(&alpha, *argv, 0) ||
|
||||||
|
alpha > ALPHA_MAX) {
|
||||||
|
fprintf(stderr, "Illegal \"alpha\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "beta") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_unsigned(&beta, *argv, 0) ||
|
||||||
|
beta > BETA_MAX) {
|
||||||
|
fprintf(stderr, "Illegal \"beta\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "quantum") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_size(&quantum, *argv)) {
|
||||||
|
fprintf(stderr, "Illegal \"quantum\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "memory_limit") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_size(&memory_limit, *argv)) {
|
||||||
|
fprintf(stderr, "Illegal \"memory_limit\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "ecn_prob") == 0) {
|
||||||
|
NEXT_ARG();
|
||||||
|
if (get_unsigned(&ecn_prob, *argv, 0) ||
|
||||||
|
ecn_prob >= 100) {
|
||||||
|
fprintf(stderr, "Illegal \"ecn_prob\"\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else if (strcmp(*argv, "ecn") == 0) {
|
||||||
|
ecn = 1;
|
||||||
|
} else if (strcmp(*argv, "noecn") == 0) {
|
||||||
|
ecn = 0;
|
||||||
|
} else if (strcmp(*argv, "bytemode") == 0) {
|
||||||
|
bytemode = 1;
|
||||||
|
} else if (strcmp(*argv, "nobytemode") == 0) {
|
||||||
|
bytemode = 0;
|
||||||
|
} else if (strcmp(*argv, "dq_rate_estimator") == 0) {
|
||||||
|
dq_rate_estimator = 1;
|
||||||
|
} else if (strcmp(*argv, "no_dq_rate_estimator") == 0) {
|
||||||
|
dq_rate_estimator = 0;
|
||||||
|
} else if (strcmp(*argv, "help") == 0) {
|
||||||
|
explain();
|
||||||
|
return -1;
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "What is \"%s\"?\n", *argv);
|
||||||
|
explain();
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
argc--;
|
||||||
|
argv++;
|
||||||
|
}
|
||||||
|
|
||||||
|
tail = addattr_nest(n, 1024, TCA_OPTIONS | NLA_F_NESTED);
|
||||||
|
if (limit)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_LIMIT, &limit, sizeof(limit));
|
||||||
|
if (flows)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_FLOWS, &flows, sizeof(flows));
|
||||||
|
if (target)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_TARGET, &target, sizeof(target));
|
||||||
|
if (tupdate)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_TUPDATE, &tupdate,
|
||||||
|
sizeof(tupdate));
|
||||||
|
if (alpha)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_ALPHA, &alpha, sizeof(alpha));
|
||||||
|
if (beta)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_BETA, &beta, sizeof(beta));
|
||||||
|
if (quantum)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_QUANTUM, &quantum,
|
||||||
|
sizeof(quantum));
|
||||||
|
if (memory_limit)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_MEMORY_LIMIT, &memory_limit,
|
||||||
|
sizeof(memory_limit));
|
||||||
|
if (ecn_prob)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_ECN_PROB, &ecn_prob,
|
||||||
|
sizeof(ecn_prob));
|
||||||
|
if (ecn != -1)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_ECN, &ecn, sizeof(ecn));
|
||||||
|
if (bytemode != -1)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_BYTEMODE, &bytemode,
|
||||||
|
sizeof(bytemode));
|
||||||
|
if (dq_rate_estimator != -1)
|
||||||
|
addattr_l(n, 1024, TCA_FQ_PIE_DQ_RATE_ESTIMATOR,
|
||||||
|
&dq_rate_estimator, sizeof(dq_rate_estimator));
|
||||||
|
addattr_nest_end(n, tail);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fq_pie_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
|
||||||
|
{
|
||||||
|
struct rtattr *tb[TCA_FQ_PIE_MAX + 1];
|
||||||
|
unsigned int limit = 0;
|
||||||
|
unsigned int flows = 0;
|
||||||
|
unsigned int target = 0;
|
||||||
|
unsigned int tupdate = 0;
|
||||||
|
unsigned int alpha = 0;
|
||||||
|
unsigned int beta = 0;
|
||||||
|
unsigned int quantum = 0;
|
||||||
|
unsigned int memory_limit = 0;
|
||||||
|
unsigned int ecn_prob = 0;
|
||||||
|
int ecn = -1;
|
||||||
|
int bytemode = -1;
|
||||||
|
int dq_rate_estimator = -1;
|
||||||
|
|
||||||
|
SPRINT_BUF(b1);
|
||||||
|
|
||||||
|
if (opt == NULL)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
parse_rtattr_nested(tb, TCA_FQ_PIE_MAX, opt);
|
||||||
|
|
||||||
|
if (tb[TCA_FQ_PIE_LIMIT] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_LIMIT]) >= sizeof(__u32)) {
|
||||||
|
limit = rta_getattr_u32(tb[TCA_FQ_PIE_LIMIT]);
|
||||||
|
print_uint(PRINT_ANY, "limit", "limit %up ", limit);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_FLOWS] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_FLOWS]) >= sizeof(__u32)) {
|
||||||
|
flows = rta_getattr_u32(tb[TCA_FQ_PIE_FLOWS]);
|
||||||
|
print_uint(PRINT_ANY, "flows", "flows %u ", flows);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_TARGET] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_TARGET]) >= sizeof(__u32)) {
|
||||||
|
target = rta_getattr_u32(tb[TCA_FQ_PIE_TARGET]);
|
||||||
|
print_uint(PRINT_JSON, "target", NULL, target);
|
||||||
|
print_string(PRINT_FP, NULL, "target %s ",
|
||||||
|
sprint_time(target, b1));
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_TUPDATE] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_TUPDATE]) >= sizeof(__u32)) {
|
||||||
|
tupdate = rta_getattr_u32(tb[TCA_FQ_PIE_TUPDATE]);
|
||||||
|
print_uint(PRINT_JSON, "tupdate", NULL, tupdate);
|
||||||
|
print_string(PRINT_FP, NULL, "tupdate %s ",
|
||||||
|
sprint_time(tupdate, b1));
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_ALPHA] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_ALPHA]) >= sizeof(__u32)) {
|
||||||
|
alpha = rta_getattr_u32(tb[TCA_FQ_PIE_ALPHA]);
|
||||||
|
print_uint(PRINT_ANY, "alpha", "alpha %u ", alpha);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_BETA] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_BETA]) >= sizeof(__u32)) {
|
||||||
|
beta = rta_getattr_u32(tb[TCA_FQ_PIE_BETA]);
|
||||||
|
print_uint(PRINT_ANY, "beta", "beta %u ", beta);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_QUANTUM] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_QUANTUM]) >= sizeof(__u32)) {
|
||||||
|
quantum = rta_getattr_u32(tb[TCA_FQ_PIE_QUANTUM]);
|
||||||
|
print_uint(PRINT_JSON, "quantum", NULL, quantum);
|
||||||
|
print_string(PRINT_FP, NULL, "quantum %s ",
|
||||||
|
sprint_size(quantum, b1));
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_MEMORY_LIMIT] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_MEMORY_LIMIT]) >= sizeof(__u32)) {
|
||||||
|
memory_limit = rta_getattr_u32(tb[TCA_FQ_PIE_MEMORY_LIMIT]);
|
||||||
|
print_uint(PRINT_JSON, "memory_limit", NULL, memory_limit);
|
||||||
|
print_string(PRINT_FP, NULL, "memory_limit %s ",
|
||||||
|
sprint_size(memory_limit, b1));
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_ECN_PROB] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN_PROB]) >= sizeof(__u32)) {
|
||||||
|
ecn_prob = rta_getattr_u32(tb[TCA_FQ_PIE_ECN_PROB]);
|
||||||
|
print_uint(PRINT_ANY, "ecn_prob", "ecn_prob %u ", ecn_prob);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_ECN] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN]) >= sizeof(__u32)) {
|
||||||
|
ecn = rta_getattr_u32(tb[TCA_FQ_PIE_ECN]);
|
||||||
|
if (ecn)
|
||||||
|
print_bool(PRINT_ANY, "ecn", "ecn ", true);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_BYTEMODE] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_BYTEMODE]) >= sizeof(__u32)) {
|
||||||
|
bytemode = rta_getattr_u32(tb[TCA_FQ_PIE_BYTEMODE]);
|
||||||
|
if (bytemode)
|
||||||
|
print_bool(PRINT_ANY, "bytemode", "bytemode ", true);
|
||||||
|
}
|
||||||
|
if (tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR] &&
|
||||||
|
RTA_PAYLOAD(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]) >= sizeof(__u32)) {
|
||||||
|
dq_rate_estimator =
|
||||||
|
rta_getattr_u32(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]);
|
||||||
|
if (dq_rate_estimator)
|
||||||
|
print_bool(PRINT_ANY, "dq_rate_estimator",
|
||||||
|
"dq_rate_estimator ", true);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fq_pie_print_xstats(struct qdisc_util *qu, FILE *f,
|
||||||
|
struct rtattr *xstats)
|
||||||
|
{
|
||||||
|
struct tc_fq_pie_xstats _st = {}, *st;
|
||||||
|
|
||||||
|
if (xstats == NULL)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
st = RTA_DATA(xstats);
|
||||||
|
if (RTA_PAYLOAD(xstats) < sizeof(*st)) {
|
||||||
|
memcpy(&_st, st, RTA_PAYLOAD(xstats));
|
||||||
|
st = &_st;
|
||||||
|
}
|
||||||
|
|
||||||
|
print_uint(PRINT_ANY, "pkts_in", " pkts_in %u",
|
||||||
|
st->packets_in);
|
||||||
|
print_uint(PRINT_ANY, "overlimit", " overlimit %u",
|
||||||
|
st->overlimit);
|
||||||
|
print_uint(PRINT_ANY, "overmemory", " overmemory %u",
|
||||||
|
st->overmemory);
|
||||||
|
print_uint(PRINT_ANY, "dropped", " dropped %u",
|
||||||
|
st->dropped);
|
||||||
|
print_uint(PRINT_ANY, "ecn_mark", " ecn_mark %u",
|
||||||
|
st->ecn_mark);
|
||||||
|
print_nl();
|
||||||
|
print_uint(PRINT_ANY, "new_flow_count", " new_flow_count %u",
|
||||||
|
st->new_flow_count);
|
||||||
|
print_uint(PRINT_ANY, "new_flows_len", " new_flows_len %u",
|
||||||
|
st->new_flows_len);
|
||||||
|
print_uint(PRINT_ANY, "old_flows_len", " old_flows_len %u",
|
||||||
|
st->old_flows_len);
|
||||||
|
print_uint(PRINT_ANY, "memory_used", " memory_used %u",
|
||||||
|
st->memory_usage);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
struct qdisc_util fq_pie_qdisc_util = {
|
||||||
|
.id = "fq_pie",
|
||||||
|
.parse_qopt = fq_pie_parse_opt,
|
||||||
|
.print_qopt = fq_pie_print_opt,
|
||||||
|
.print_xstats = fq_pie_print_xstats,
|
||||||
|
};
|
||||||
Loading…
Reference in New Issue