summaryrefslogtreecommitdiffstats
path: root/net/sched/sch_cbq.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/sched/sch_cbq.c')
-rw-r--r--net/sched/sch_cbq.c183
1 files changed, 85 insertions, 98 deletions
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 4de3744e65c3..09969c1fbc08 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1377,24 +1377,33 @@ static int cbq_set_fopt(struct cbq_class *cl, struct tc_cbq_fopt *fopt)
return 0;
}
-static int cbq_init(struct Qdisc *sch, struct rtattr *opt)
+static const struct nla_policy cbq_policy[TCA_CBQ_MAX + 1] = {
+ [TCA_CBQ_LSSOPT] = { .len = sizeof(struct tc_cbq_lssopt) },
+ [TCA_CBQ_WRROPT] = { .len = sizeof(struct tc_cbq_wrropt) },
+ [TCA_CBQ_FOPT] = { .len = sizeof(struct tc_cbq_fopt) },
+ [TCA_CBQ_OVL_STRATEGY] = { .len = sizeof(struct tc_cbq_ovl) },
+ [TCA_CBQ_RATE] = { .len = sizeof(struct tc_ratespec) },
+ [TCA_CBQ_RTAB] = { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
+ [TCA_CBQ_POLICE] = { .len = sizeof(struct tc_cbq_police) },
+};
+
+static int cbq_init(struct Qdisc *sch, struct nlattr *opt)
{
struct cbq_sched_data *q = qdisc_priv(sch);
- struct rtattr *tb[TCA_CBQ_MAX];
+ struct nlattr *tb[TCA_CBQ_MAX + 1];
struct tc_ratespec *r;
+ int err;
- if (rtattr_parse_nested(tb, TCA_CBQ_MAX, opt) < 0 ||
- tb[TCA_CBQ_RTAB-1] == NULL || tb[TCA_CBQ_RATE-1] == NULL ||
- RTA_PAYLOAD(tb[TCA_CBQ_RATE-1]) < sizeof(struct tc_ratespec))
- return -EINVAL;
+ err = nla_parse_nested(tb, TCA_CBQ_MAX, opt, cbq_policy);
+ if (err < 0)
+ return err;
- if (tb[TCA_CBQ_LSSOPT-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT-1]) < sizeof(struct tc_cbq_lssopt))
+ if (tb[TCA_CBQ_RTAB] == NULL || tb[TCA_CBQ_RATE] == NULL)
return -EINVAL;
- r = RTA_DATA(tb[TCA_CBQ_RATE-1]);
+ r = nla_data(tb[TCA_CBQ_RATE]);
- if ((q->link.R_tab = qdisc_get_rtab(r, tb[TCA_CBQ_RTAB-1])) == NULL)
+ if ((q->link.R_tab = qdisc_get_rtab(r, tb[TCA_CBQ_RTAB])) == NULL)
return -EINVAL;
q->link.refcnt = 1;
@@ -1427,8 +1436,8 @@ static int cbq_init(struct Qdisc *sch, struct rtattr *opt)
cbq_link_class(&q->link);
- if (tb[TCA_CBQ_LSSOPT-1])
- cbq_set_lss(&q->link, RTA_DATA(tb[TCA_CBQ_LSSOPT-1]));
+ if (tb[TCA_CBQ_LSSOPT])
+ cbq_set_lss(&q->link, nla_data(tb[TCA_CBQ_LSSOPT]));
cbq_addprio(q, &q->link);
return 0;
@@ -1438,10 +1447,10 @@ static __inline__ int cbq_dump_rate(struct sk_buff *skb, struct cbq_class *cl)
{
unsigned char *b = skb_tail_pointer(skb);
- RTA_PUT(skb, TCA_CBQ_RATE, sizeof(cl->R_tab->rate), &cl->R_tab->rate);
+ NLA_PUT(skb, TCA_CBQ_RATE, sizeof(cl->R_tab->rate), &cl->R_tab->rate);
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1463,10 +1472,10 @@ static __inline__ int cbq_dump_lss(struct sk_buff *skb, struct cbq_class *cl)
opt.minidle = (u32)(-cl->minidle);
opt.offtime = cl->offtime;
opt.change = ~0;
- RTA_PUT(skb, TCA_CBQ_LSSOPT, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_CBQ_LSSOPT, sizeof(opt), &opt);
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1481,10 +1490,10 @@ static __inline__ int cbq_dump_wrr(struct sk_buff *skb, struct cbq_class *cl)
opt.priority = cl->priority+1;
opt.cpriority = cl->cpriority+1;
opt.weight = cl->weight;
- RTA_PUT(skb, TCA_CBQ_WRROPT, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_CBQ_WRROPT, sizeof(opt), &opt);
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1498,10 +1507,10 @@ static __inline__ int cbq_dump_ovl(struct sk_buff *skb, struct cbq_class *cl)
opt.priority2 = cl->priority2+1;
opt.pad = 0;
opt.penalty = cl->penalty;
- RTA_PUT(skb, TCA_CBQ_OVL_STRATEGY, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_CBQ_OVL_STRATEGY, sizeof(opt), &opt);
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1515,11 +1524,11 @@ static __inline__ int cbq_dump_fopt(struct sk_buff *skb, struct cbq_class *cl)
opt.split = cl->split ? cl->split->classid : 0;
opt.defmap = cl->defmap;
opt.defchange = ~0;
- RTA_PUT(skb, TCA_CBQ_FOPT, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_CBQ_FOPT, sizeof(opt), &opt);
}
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1534,11 +1543,11 @@ static __inline__ int cbq_dump_police(struct sk_buff *skb, struct cbq_class *cl)
opt.police = cl->police;
opt.__res1 = 0;
opt.__res2 = 0;
- RTA_PUT(skb, TCA_CBQ_POLICE, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_CBQ_POLICE, sizeof(opt), &opt);
}
return skb->len;
-rtattr_failure:
+nla_put_failure:
nlmsg_trim(skb, b);
return -1;
}
@@ -1561,18 +1570,18 @@ static int cbq_dump_attr(struct sk_buff *skb, struct cbq_class *cl)
static int cbq_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct cbq_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb_tail_pointer(skb);
- struct rtattr *rta;
+ struct nlattr *nest;
- rta = (struct rtattr*)b;
- RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (nest == NULL)
+ goto nla_put_failure;
if (cbq_dump_attr(skb, &q->link) < 0)
- goto rtattr_failure;
- rta->rta_len = skb_tail_pointer(skb) - b;
+ goto nla_put_failure;
+ nla_nest_end(skb, nest);
return skb->len;
-rtattr_failure:
- nlmsg_trim(skb, b);
+nla_put_failure:
+ nla_nest_cancel(skb, nest);
return -1;
}
@@ -1590,8 +1599,7 @@ cbq_dump_class(struct Qdisc *sch, unsigned long arg,
struct sk_buff *skb, struct tcmsg *tcm)
{
struct cbq_class *cl = (struct cbq_class*)arg;
- unsigned char *b = skb_tail_pointer(skb);
- struct rtattr *rta;
+ struct nlattr *nest;
if (cl->tparent)
tcm->tcm_parent = cl->tparent->classid;
@@ -1600,15 +1608,16 @@ cbq_dump_class(struct Qdisc *sch, unsigned long arg,
tcm->tcm_handle = cl->classid;
tcm->tcm_info = cl->q->handle;
- rta = (struct rtattr*)b;
- RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (nest == NULL)
+ goto nla_put_failure;
if (cbq_dump_attr(skb, cl) < 0)
- goto rtattr_failure;
- rta->rta_len = skb_tail_pointer(skb) - b;
+ goto nla_put_failure;
+ nla_nest_end(skb, nest);
return skb->len;
-rtattr_failure:
- nlmsg_trim(skb, b);
+nla_put_failure:
+ nla_nest_cancel(skb, nest);
return -1;
}
@@ -1753,45 +1762,23 @@ static void cbq_put(struct Qdisc *sch, unsigned long arg)
}
static int
-cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **tca,
+cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **tca,
unsigned long *arg)
{
int err;
struct cbq_sched_data *q = qdisc_priv(sch);
struct cbq_class *cl = (struct cbq_class*)*arg;
- struct rtattr *opt = tca[TCA_OPTIONS-1];
- struct rtattr *tb[TCA_CBQ_MAX];
+ struct nlattr *opt = tca[TCA_OPTIONS];
+ struct nlattr *tb[TCA_CBQ_MAX + 1];
struct cbq_class *parent;
struct qdisc_rate_table *rtab = NULL;
- if (opt==NULL || rtattr_parse_nested(tb, TCA_CBQ_MAX, opt))
+ if (opt == NULL)
return -EINVAL;
- if (tb[TCA_CBQ_OVL_STRATEGY-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY-1]) < sizeof(struct tc_cbq_ovl))
- return -EINVAL;
-
- if (tb[TCA_CBQ_FOPT-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_FOPT-1]) < sizeof(struct tc_cbq_fopt))
- return -EINVAL;
-
- if (tb[TCA_CBQ_RATE-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_RATE-1]) < sizeof(struct tc_ratespec))
- return -EINVAL;
-
- if (tb[TCA_CBQ_LSSOPT-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT-1]) < sizeof(struct tc_cbq_lssopt))
- return -EINVAL;
-
- if (tb[TCA_CBQ_WRROPT-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_WRROPT-1]) < sizeof(struct tc_cbq_wrropt))
- return -EINVAL;
-
-#ifdef CONFIG_NET_CLS_ACT
- if (tb[TCA_CBQ_POLICE-1] &&
- RTA_PAYLOAD(tb[TCA_CBQ_POLICE-1]) < sizeof(struct tc_cbq_police))
- return -EINVAL;
-#endif
+ err = nla_parse_nested(tb, TCA_CBQ_MAX, opt, cbq_policy);
+ if (err < 0)
+ return err;
if (cl) {
/* Check parent */
@@ -1802,8 +1789,8 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
return -EINVAL;
}
- if (tb[TCA_CBQ_RATE-1]) {
- rtab = qdisc_get_rtab(RTA_DATA(tb[TCA_CBQ_RATE-1]), tb[TCA_CBQ_RTAB-1]);
+ if (tb[TCA_CBQ_RATE]) {
+ rtab = qdisc_get_rtab(nla_data(tb[TCA_CBQ_RATE]), tb[TCA_CBQ_RTAB]);
if (rtab == NULL)
return -EINVAL;
}
@@ -1819,45 +1806,45 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
qdisc_put_rtab(rtab);
}
- if (tb[TCA_CBQ_LSSOPT-1])
- cbq_set_lss(cl, RTA_DATA(tb[TCA_CBQ_LSSOPT-1]));
+ if (tb[TCA_CBQ_LSSOPT])
+ cbq_set_lss(cl, nla_data(tb[TCA_CBQ_LSSOPT]));
- if (tb[TCA_CBQ_WRROPT-1]) {
+ if (tb[TCA_CBQ_WRROPT]) {
cbq_rmprio(q, cl);
- cbq_set_wrr(cl, RTA_DATA(tb[TCA_CBQ_WRROPT-1]));
+ cbq_set_wrr(cl, nla_data(tb[TCA_CBQ_WRROPT]));
}
- if (tb[TCA_CBQ_OVL_STRATEGY-1])
- cbq_set_overlimit(cl, RTA_DATA(tb[TCA_CBQ_OVL_STRATEGY-1]));
+ if (tb[TCA_CBQ_OVL_STRATEGY])
+ cbq_set_overlimit(cl, nla_data(tb[TCA_CBQ_OVL_STRATEGY]));
#ifdef CONFIG_NET_CLS_ACT
- if (tb[TCA_CBQ_POLICE-1])
- cbq_set_police(cl, RTA_DATA(tb[TCA_CBQ_POLICE-1]));
+ if (tb[TCA_CBQ_POLICE])
+ cbq_set_police(cl, nla_data(tb[TCA_CBQ_POLICE]));
#endif
- if (tb[TCA_CBQ_FOPT-1])
- cbq_set_fopt(cl, RTA_DATA(tb[TCA_CBQ_FOPT-1]));
+ if (tb[TCA_CBQ_FOPT])
+ cbq_set_fopt(cl, nla_data(tb[TCA_CBQ_FOPT]));
if (cl->q->q.qlen)
cbq_activate_class(cl);
sch_tree_unlock(sch);
- if (tca[TCA_RATE-1])
+ if (tca[TCA_RATE])
gen_replace_estimator(&cl->bstats, &cl->rate_est,
&sch->dev->queue_lock,
- tca[TCA_RATE-1]);
+ tca[TCA_RATE]);
return 0;
}
if (parentid == TC_H_ROOT)
return -EINVAL;
- if (tb[TCA_CBQ_WRROPT-1] == NULL || tb[TCA_CBQ_RATE-1] == NULL ||
- tb[TCA_CBQ_LSSOPT-1] == NULL)
+ if (tb[TCA_CBQ_WRROPT] == NULL || tb[TCA_CBQ_RATE] == NULL ||
+ tb[TCA_CBQ_LSSOPT] == NULL)
return -EINVAL;
- rtab = qdisc_get_rtab(RTA_DATA(tb[TCA_CBQ_RATE-1]), tb[TCA_CBQ_RTAB-1]);
+ rtab = qdisc_get_rtab(nla_data(tb[TCA_CBQ_RATE]), tb[TCA_CBQ_RTAB]);
if (rtab == NULL)
return -EINVAL;
@@ -1912,8 +1899,8 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
cl->share = cl->tparent;
cbq_adjust_levels(parent);
cl->minidle = -0x7FFFFFFF;
- cbq_set_lss(cl, RTA_DATA(tb[TCA_CBQ_LSSOPT-1]));
- cbq_set_wrr(cl, RTA_DATA(tb[TCA_CBQ_WRROPT-1]));
+ cbq_set_lss(cl, nla_data(tb[TCA_CBQ_LSSOPT]));
+ cbq_set_wrr(cl, nla_data(tb[TCA_CBQ_WRROPT]));
if (cl->ewma_log==0)
cl->ewma_log = q->link.ewma_log;
if (cl->maxidle==0)
@@ -1921,19 +1908,19 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
if (cl->avpkt==0)
cl->avpkt = q->link.avpkt;
cl->overlimit = cbq_ovl_classic;
- if (tb[TCA_CBQ_OVL_STRATEGY-1])
- cbq_set_overlimit(cl, RTA_DATA(tb[TCA_CBQ_OVL_STRATEGY-1]));
+ if (tb[TCA_CBQ_OVL_STRATEGY])
+ cbq_set_overlimit(cl, nla_data(tb[TCA_CBQ_OVL_STRATEGY]));
#ifdef CONFIG_NET_CLS_ACT
- if (tb[TCA_CBQ_POLICE-1])
- cbq_set_police(cl, RTA_DATA(tb[TCA_CBQ_POLICE-1]));
+ if (tb[TCA_CBQ_POLICE])
+ cbq_set_police(cl, nla_data(tb[TCA_CBQ_POLICE]));
#endif
- if (tb[TCA_CBQ_FOPT-1])
- cbq_set_fopt(cl, RTA_DATA(tb[TCA_CBQ_FOPT-1]));
+ if (tb[TCA_CBQ_FOPT])
+ cbq_set_fopt(cl, nla_data(tb[TCA_CBQ_FOPT]));
sch_tree_unlock(sch);
- if (tca[TCA_RATE-1])
+ if (tca[TCA_RATE])
gen_new_estimator(&cl->bstats, &cl->rate_est,
- &sch->dev->queue_lock, tca[TCA_RATE-1]);
+ &sch->dev->queue_lock, tca[TCA_RATE]);
*arg = (unsigned long)cl;
return 0;
@@ -2045,7 +2032,7 @@ static void cbq_walk(struct Qdisc *sch, struct qdisc_walker *arg)
}
}
-static struct Qdisc_class_ops cbq_class_ops = {
+static const struct Qdisc_class_ops cbq_class_ops = {
.graft = cbq_graft,
.leaf = cbq_leaf,
.qlen_notify = cbq_qlen_notify,
@@ -2061,7 +2048,7 @@ static struct Qdisc_class_ops cbq_class_ops = {
.dump_stats = cbq_dump_class_stats,
};
-static struct Qdisc_ops cbq_qdisc_ops = {
+static struct Qdisc_ops cbq_qdisc_ops __read_mostly = {
.next = NULL,
.cl_ops = &cbq_class_ops,
.id = "cbq",
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 13:09:37 +0000