OpenWrt – Rev 4

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From 1d418f7e88035ed7a94073f6354246c66e9193e9 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:22:58 +0200
Subject: fq_codel: switch default qdisc from pfifo_fast to fq_codel and remove pfifo_fast

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 include/net/sch_generic.h | 3 ++-
 net/sched/Kconfig         | 3 ++-
 net/sched/sch_api.c       | 2 +-
 net/sched/sch_fq_codel.c  | 3 ++-
 net/sched/sch_generic.c   | 4 ++--
 5 files changed, 9 insertions(+), 6 deletions(-)

--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -339,12 +339,13 @@ extern struct Qdisc_ops noop_qdisc_ops;
 extern struct Qdisc_ops pfifo_fast_ops;
 extern struct Qdisc_ops mq_qdisc_ops;
 extern struct Qdisc_ops noqueue_qdisc_ops;
+extern struct Qdisc_ops fq_codel_qdisc_ops;
 extern const struct Qdisc_ops *default_qdisc_ops;
 static inline const struct Qdisc_ops *
 get_default_qdisc_ops(const struct net_device *dev, int ntx)
 {
        return ntx < dev->real_num_tx_queues ?
-                       default_qdisc_ops : &pfifo_fast_ops;
+                       default_qdisc_ops : &fq_codel_qdisc_ops;
 }
 
 struct Qdisc_class_common {
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -3,8 +3,9 @@
 # 
 
 menuconfig NET_SCHED
-       bool "QoS and/or fair queueing"
+       def_bool y
        select NET_SCH_FIFO
+       select NET_SCH_FQ_CODEL
        ---help---
          When the kernel has several packets to send out over a network
          device, it has to decide which ones to send first, which ones to
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1978,7 +1978,7 @@ static int __init pktsched_init(void)
                return err;
        }
 
-       register_qdisc(&pfifo_fast_ops);
+       register_qdisc(&fq_codel_qdisc_ops);
        register_qdisc(&pfifo_qdisc_ops);
        register_qdisc(&bfifo_qdisc_ops);
        register_qdisc(&pfifo_head_drop_qdisc_ops);
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -715,7 +715,7 @@ static const struct Qdisc_class_ops fq_c
        .walk           =       fq_codel_walk,
 };
 
-static struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
+struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
        .cl_ops         =       &fq_codel_class_ops,
        .id             =       "fq_codel",
        .priv_size      =       sizeof(struct fq_codel_sched_data),
@@ -730,6 +730,7 @@ static struct Qdisc_ops fq_codel_qdisc_o
        .dump_stats =   fq_codel_dump_stats,
        .owner          =       THIS_MODULE,
 };
+EXPORT_SYMBOL(fq_codel_qdisc_ops);
 
 static int __init fq_codel_module_init(void)
 {
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -31,7 +31,7 @@
 #include <net/dst.h>
 
 /* Qdisc to use by default */
-const struct Qdisc_ops *default_qdisc_ops = &pfifo_fast_ops;
+const struct Qdisc_ops *default_qdisc_ops = &fq_codel_qdisc_ops;
 EXPORT_SYMBOL(default_qdisc_ops);
 
 /* Main transmission queue. */
@@ -760,7 +760,7 @@ static void attach_one_default_qdisc(str
                                     void *_unused)
 {
        struct Qdisc *qdisc;
-       const struct Qdisc_ops *ops = default_qdisc_ops;
+       const struct Qdisc_ops *ops = &fq_codel_qdisc_ops;
 
        if (dev->priv_flags & IFF_NO_QUEUE)
                ops = &noqueue_qdisc_ops;