diff options
author | David S. Miller <davem@davemloft.net> | 2016-06-10 20:52:24 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2016-06-10 20:52:24 +0200 |
commit | 1578b0a5e92825334760741e5c166b8873886f1b (patch) | |
tree | ac8299191f37990111f7d4b615601f4356e24fea /net/sched | |
parent | mlxsw: core: Remove deprecated create_workqueue (diff) | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
download | linux-1578b0a5e92825334760741e5c166b8873886f1b.tar.xz linux-1578b0a5e92825334760741e5c166b8873886f1b.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/sched/act_police.c
net/sched/sch_drr.c
net/sched/sch_hfsc.c
net/sched/sch_prio.c
net/sched/sch_red.c
net/sched/sch_tbf.c
In net-next the drop methods of the packet schedulers got removed, so
the bug fixes to them in 'net' are irrelevant.
A packet action unload crash fix conflicts with the addition of the
new firstuse timestamp.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r-- | net/sched/act_police.c | 34 | ||||
-rw-r--r-- | net/sched/cls_flower.c | 6 | ||||
-rw-r--r-- | net/sched/cls_u32.c | 72 | ||||
-rw-r--r-- | net/sched/sch_drr.c | 3 | ||||
-rw-r--r-- | net/sched/sch_fq_codel.c | 26 | ||||
-rw-r--r-- | net/sched/sch_generic.c | 2 | ||||
-rw-r--r-- | net/sched/sch_hfsc.c | 11 | ||||
-rw-r--r-- | net/sched/sch_ingress.c | 12 | ||||
-rw-r--r-- | net/sched/sch_prio.c | 3 | ||||
-rw-r--r-- | net/sched/sch_qfq.c | 6 | ||||
-rw-r--r-- | net/sched/sch_red.c | 3 | ||||
-rw-r--r-- | net/sched/sch_tbf.c | 3 |
12 files changed, 106 insertions, 75 deletions
diff --git a/net/sched/act_police.c b/net/sched/act_police.c index bcb31142556b..ff34dd3966eb 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -38,7 +38,7 @@ struct tcf_police { bool peak_present; }; #define to_police(pc) \ - container_of(pc, struct tcf_police, common) + container_of(pc->priv, struct tcf_police, common) #define POL_TAB_MASK 15 @@ -119,14 +119,12 @@ static int tcf_act_police_locate(struct net *net, struct nlattr *nla, struct nlattr *est, struct tc_action *a, int ovr, int bind) { - unsigned int h; int ret = 0, err; struct nlattr *tb[TCA_POLICE_MAX + 1]; struct tc_police *parm; struct tcf_police *police; struct qdisc_rate_table *R_tab = NULL, *P_tab = NULL; struct tc_action_net *tn = net_generic(net, police_net_id); - struct tcf_hashinfo *hinfo = tn->hinfo; int size; if (nla == NULL) @@ -145,7 +143,7 @@ static int tcf_act_police_locate(struct net *net, struct nlattr *nla, if (parm->index) { if (tcf_hash_search(tn, a, parm->index)) { - police = to_police(a->priv); + police = to_police(a); if (bind) { police->tcf_bindcnt += 1; police->tcf_refcnt += 1; @@ -156,16 +154,15 @@ static int tcf_act_police_locate(struct net *net, struct nlattr *nla, /* not replacing */ return -EEXIST; } + } else { + ret = tcf_hash_create(tn, parm->index, NULL, a, + sizeof(*police), bind, false); + if (ret) + return ret; + ret = ACT_P_CREATED; } - police = kzalloc(sizeof(*police), GFP_KERNEL); - if (police == NULL) - return -ENOMEM; - ret = ACT_P_CREATED; - police->tcf_refcnt = 1; - spin_lock_init(&police->tcf_lock); - if (bind) - police->tcf_bindcnt = 1; + police = to_police(a); override: if (parm->rate.rate) { err = -ENOMEM; @@ -238,17 +235,8 @@ override: return ret; police->tcfp_t_c = ktime_get_ns(); - police->tcf_index = parm->index ? parm->index : - tcf_hash_new_index(tn); - police->tcf_tm.install = jiffies; - police->tcf_tm.lastuse = jiffies; - police->tcf_tm.firstuse = 0; - h = tcf_hash(police->tcf_index, POL_TAB_MASK); - spin_lock_bh(&hinfo->lock); - hlist_add_head(&police->tcf_head, &hinfo->htab[h]); - spin_unlock_bh(&hinfo->lock); + tcf_hash_insert(tn, a); - a->priv = police; return ret; failure_unlock: @@ -257,7 +245,7 @@ failure: qdisc_put_rtab(P_tab); qdisc_put_rtab(R_tab); if (ret == ACT_P_CREATED) - kfree(police); + tcf_hash_cleanup(a, est); return err; } diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index d737492b925d..1ea6f76e64b6 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -175,7 +175,7 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, unsigned long cookie) struct tc_cls_flower_offload offload = {0}; struct tc_to_netdev tc; - if (!tc_should_offload(dev, 0)) + if (!tc_should_offload(dev, tp, 0)) return; offload.command = TC_CLSFLOWER_DESTROY; @@ -198,7 +198,7 @@ static void fl_hw_replace_filter(struct tcf_proto *tp, struct tc_cls_flower_offload offload = {0}; struct tc_to_netdev tc; - if (!tc_should_offload(dev, flags)) + if (!tc_should_offload(dev, tp, flags)) return; offload.command = TC_CLSFLOWER_REPLACE; @@ -220,7 +220,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) struct tc_cls_flower_offload offload = {0}; struct tc_to_netdev tc; - if (!tc_should_offload(dev, 0)) + if (!tc_should_offload(dev, tp, 0)) return; offload.command = TC_CLSFLOWER_STATS; diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index 079b43b3c5d2..ffe593efe930 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -440,7 +440,7 @@ static void u32_remove_hw_knode(struct tcf_proto *tp, u32 handle) offload.type = TC_SETUP_CLSU32; offload.cls_u32 = &u32_offload; - if (tc_should_offload(dev, 0)) { + if (tc_should_offload(dev, tp, 0)) { offload.cls_u32->command = TC_CLSU32_DELETE_KNODE; offload.cls_u32->knode.handle = handle; dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, @@ -457,20 +457,21 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_to_netdev offload; int err; + if (!tc_should_offload(dev, tp, flags)) + return tc_skip_sw(flags) ? -EINVAL : 0; + offload.type = TC_SETUP_CLSU32; offload.cls_u32 = &u32_offload; - if (tc_should_offload(dev, flags)) { - offload.cls_u32->command = TC_CLSU32_NEW_HNODE; - offload.cls_u32->hnode.divisor = h->divisor; - offload.cls_u32->hnode.handle = h->handle; - offload.cls_u32->hnode.prio = h->prio; + offload.cls_u32->command = TC_CLSU32_NEW_HNODE; + offload.cls_u32->hnode.divisor = h->divisor; + offload.cls_u32->hnode.handle = h->handle; + offload.cls_u32->hnode.prio = h->prio; - err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, - tp->protocol, &offload); - if (tc_skip_sw(flags)) - return err; - } + err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, + tp->protocol, &offload); + if (tc_skip_sw(flags)) + return err; return 0; } @@ -484,7 +485,7 @@ static void u32_clear_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h) offload.type = TC_SETUP_CLSU32; offload.cls_u32 = &u32_offload; - if (tc_should_offload(dev, 0)) { + if (tc_should_offload(dev, tp, 0)) { offload.cls_u32->command = TC_CLSU32_DELETE_HNODE; offload.cls_u32->hnode.divisor = h->divisor; offload.cls_u32->hnode.handle = h->handle; @@ -507,27 +508,28 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, offload.type = TC_SETUP_CLSU32; offload.cls_u32 = &u32_offload; - if (tc_should_offload(dev, flags)) { - offload.cls_u32->command = TC_CLSU32_REPLACE_KNODE; - offload.cls_u32->knode.handle = n->handle; - offload.cls_u32->knode.fshift = n->fshift; + if (!tc_should_offload(dev, tp, flags)) + return tc_skip_sw(flags) ? -EINVAL : 0; + + offload.cls_u32->command = TC_CLSU32_REPLACE_KNODE; + offload.cls_u32->knode.handle = n->handle; + offload.cls_u32->knode.fshift = n->fshift; #ifdef CONFIG_CLS_U32_MARK - offload.cls_u32->knode.val = n->val; - offload.cls_u32->knode.mask = n->mask; + offload.cls_u32->knode.val = n->val; + offload.cls_u32->knode.mask = n->mask; #else - offload.cls_u32->knode.val = 0; - offload.cls_u32->knode.mask = 0; + offload.cls_u32->knode.val = 0; + offload.cls_u32->knode.mask = 0; #endif - offload.cls_u32->knode.sel = &n->sel; - offload.cls_u32->knode.exts = &n->exts; - if (n->ht_down) - offload.cls_u32->knode.link_handle = n->ht_down->handle; - - err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, - tp->protocol, &offload); - if (tc_skip_sw(flags)) - return err; - } + offload.cls_u32->knode.sel = &n->sel; + offload.cls_u32->knode.exts = &n->exts; + if (n->ht_down) + offload.cls_u32->knode.link_handle = n->ht_down->handle; + + err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, + tp->protocol, &offload); + if (tc_skip_sw(flags)) + return err; return 0; } @@ -863,7 +865,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, if (tb[TCA_U32_FLAGS]) { flags = nla_get_u32(tb[TCA_U32_FLAGS]); if (!tc_flags_valid(flags)) - return err; + return -EINVAL; } n = (struct tc_u_knode *)*arg; @@ -921,11 +923,17 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, ht->divisor = divisor; ht->handle = handle; ht->prio = tp->prio; + + err = u32_replace_hw_hnode(tp, ht, flags); + if (err) { + kfree(ht); + return err; + } + RCU_INIT_POINTER(ht->next, tp_c->hlist); rcu_assign_pointer(tp_c->hlist, ht); *arg = (unsigned long)ht; - u32_replace_hw_hnode(tp, ht, flags); return 0; } diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c index 2bec94cf697c..22609e4e845f 100644 --- a/net/sched/sch_drr.c +++ b/net/sched/sch_drr.c @@ -378,6 +378,7 @@ static int drr_enqueue(struct sk_buff *skb, struct Qdisc *sch) cl->deficit = cl->quantum; } + qdisc_qstats_backlog_inc(sch, skb); sch->q.qlen++; return err; } @@ -410,6 +411,7 @@ static struct sk_buff *drr_dequeue(struct Qdisc *sch) bstats_update(&cl->bstats, skb); qdisc_bstats_update(sch, skb); + qdisc_qstats_backlog_dec(sch, skb); sch->q.qlen--; return skb; } @@ -446,6 +448,7 @@ static void drr_reset_qdisc(struct Qdisc *sch) qdisc_reset(cl->qdisc); } } + sch->qstats.backlog = 0; sch->q.qlen = 0; } diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c index 176a7e2561d7..a302e8ef5498 100644 --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c @@ -190,6 +190,7 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch) unsigned int idx, prev_backlog, prev_qlen; struct fq_codel_flow *flow; int uninitialized_var(ret); + unsigned int pkt_len; bool memory_limited; idx = fq_codel_classify(skb, sch, &ret); @@ -221,6 +222,8 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch) prev_backlog = sch->qstats.backlog; prev_qlen = sch->q.qlen; + /* save this packet length as it might be dropped by fq_codel_drop() */ + pkt_len = qdisc_pkt_len(skb); /* fq_codel_drop() is quite expensive, as it performs a linear search * in q->backlogs[] to find a fat flow. * So instead of dropping a single packet, drop half of its backlog @@ -228,14 +231,23 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch) */ ret = fq_codel_drop(sch, q->drop_batch_size); - q->drop_overlimit += prev_qlen - sch->q.qlen; + prev_qlen -= sch->q.qlen; + prev_backlog -= sch->qstats.backlog; + q->drop_overlimit += prev_qlen; if (memory_limited) - q->drop_overmemory += prev_qlen - sch->q.qlen; - /* As we dropped packet(s), better let upper stack know this */ - qdisc_tree_reduce_backlog(sch, prev_qlen - sch->q.qlen, - prev_backlog - sch->qstats.backlog); + q->drop_overmemory += prev_qlen; - return ret == idx ? NET_XMIT_CN : NET_XMIT_SUCCESS; + /* As we dropped packet(s), better let upper stack know this. + * If we dropped a packet for this flow, return NET_XMIT_CN, + * but in this case, our parents wont increase their backlogs. + */ + if (ret == idx) { + qdisc_tree_reduce_backlog(sch, prev_qlen - 1, + prev_backlog - pkt_len); + return NET_XMIT_CN; + } + qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog); + return NET_XMIT_SUCCESS; } /* This is the specific function called from codel_dequeue() @@ -647,7 +659,7 @@ static int fq_codel_dump_class_stats(struct Qdisc *sch, unsigned long cl, qs.backlog = q->backlogs[idx]; qs.drops = flow->dropped; } - if (gnet_stats_copy_queue(d, NULL, &qs, 0) < 0) + if (gnet_stats_copy_queue(d, NULL, &qs, qs.qlen) < 0) return -1; if (idx < q->flows_cnt) return gnet_stats_copy_app(d, &xstats, sizeof(xstats)); diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index cad810b45e31..0c9cb516f2e3 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -49,6 +49,7 @@ static inline int dev_requeue_skb(struct sk_buff *skb, struct Qdisc *q) { q->gso_skb = skb; q->qstats.requeues++; + qdisc_qstats_backlog_inc(q, skb); q->q.qlen++; /* it's still part of the queue */ __netif_schedule(q); @@ -92,6 +93,7 @@ static struct sk_buff *dequeue_skb(struct Qdisc *q, bool *validate, txq = skb_get_tx_queue(txq->dev, skb); if (!netif_xmit_frozen_or_stopped(txq)) { q->gso_skb = NULL; + qdisc_qstats_backlog_dec(q, skb); q->q.qlen--; } else skb = NULL; diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index 155e3ce81270..eb3d3f5aba80 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -1529,6 +1529,7 @@ hfsc_reset_qdisc(struct Qdisc *sch) q->eligible = RB_ROOT; INIT_LIST_HEAD(&q->droplist); qdisc_watchdog_cancel(&q->watchdog); + sch->qstats.backlog = 0; sch->q.qlen = 0; } @@ -1559,14 +1560,6 @@ hfsc_dump_qdisc(struct Qdisc *sch, struct sk_buff *skb) struct hfsc_sched *q = qdisc_priv(sch); unsigned char *b = skb_tail_pointer(skb); struct tc_hfsc_qopt qopt; - struct hfsc_class *cl; - unsigned int i; - - sch->qstats.backlog = 0; - for (i = 0; i < q->clhash.hashsize; i++) { - hlist_for_each_entry(cl, &q->clhash.hash[i], cl_common.hnode) - sch->qstats.backlog += cl->qdisc->qstats.backlog; - } qopt.defcls = q->defcls; if (nla_put(skb, TCA_OPTIONS, sizeof(qopt), &qopt)) @@ -1604,6 +1597,7 @@ hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch) if (cl->qdisc->q.qlen == 1) set_active(cl, qdisc_pkt_len(skb)); + qdisc_qstats_backlog_inc(sch, skb); sch->q.qlen++; return NET_XMIT_SUCCESS; @@ -1672,6 +1666,7 @@ hfsc_dequeue(struct Qdisc *sch) qdisc_unthrottled(sch); qdisc_bstats_update(sch, skb); + qdisc_qstats_backlog_dec(sch, skb); sch->q.qlen--; return skb; diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index 10adbc617905..8fe6999b642a 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -27,6 +27,11 @@ static unsigned long ingress_get(struct Qdisc *sch, u32 classid) return TC_H_MIN(classid) + 1; } +static bool ingress_cl_offload(u32 classid) +{ + return true; +} + static unsigned long ingress_bind_filter(struct Qdisc *sch, unsigned long parent, u32 classid) { @@ -86,6 +91,7 @@ static const struct Qdisc_class_ops ingress_class_ops = { .put = ingress_put, .walk = ingress_walk, .tcf_chain = ingress_find_tcf, + .tcf_cl_offload = ingress_cl_offload, .bind_tcf = ingress_bind_filter, .unbind_tcf = ingress_put, }; @@ -110,6 +116,11 @@ static unsigned long clsact_get(struct Qdisc *sch, u32 classid) } } +static bool clsact_cl_offload(u32 classid) +{ + return TC_H_MIN(classid) == TC_H_MIN(TC_H_MIN_INGRESS); +} + static unsigned long clsact_bind_filter(struct Qdisc *sch, unsigned long parent, u32 classid) { @@ -158,6 +169,7 @@ static const struct Qdisc_class_ops clsact_class_ops = { .put = ingress_put, .walk = ingress_walk, .tcf_chain = clsact_find_tcf, + .tcf_cl_offload = clsact_cl_offload, .bind_tcf = clsact_bind_filter, .unbind_tcf = ingress_put, }; diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index 4c77780b55c3..de492682caee 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -85,6 +85,7 @@ prio_enqueue(struct sk_buff *skb, struct Qdisc *sch) ret = qdisc_enqueue(skb, qdisc); if (ret == NET_XMIT_SUCCESS) { + qdisc_qstats_backlog_inc(sch, skb); sch->q.qlen++; return NET_XMIT_SUCCESS; } @@ -117,6 +118,7 @@ static struct sk_buff *prio_dequeue(struct Qdisc *sch) struct sk_buff *skb = qdisc_dequeue_peeked(qdisc); if (skb) { qdisc_bstats_update(sch, skb); + qdisc_qstats_backlog_dec(sch, skb); sch->q.qlen--; return skb; } @@ -133,6 +135,7 @@ prio_reset(struct Qdisc *sch) for (prio = 0; prio < q->bands; prio++) qdisc_reset(q->queues[prio]); + sch->qstats.backlog = 0; sch->q.qlen = 0; } diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c index cdb3966572f9..0427fa8b23f2 100644 --- a/net/sched/sch_qfq.c +++ b/net/sched/sch_qfq.c @@ -1238,8 +1238,10 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch) cl->agg->lmax, qdisc_pkt_len(skb), cl->common.classid); err = qfq_change_agg(sch, cl, cl->agg->class_weight, qdisc_pkt_len(skb)); - if (err) - return err; + if (err) { + cl->qstats.drops++; + return qdisc_drop(skb, sch); + } } err = qdisc_enqueue(skb, cl->qdisc); diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 235942f3464e..a0d57530335e 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -97,6 +97,7 @@ static int red_enqueue(struct sk_buff *skb, struct Qdisc *sch) ret = qdisc_enqueue(skb, child); if (likely(ret == NET_XMIT_SUCCESS)) { + qdisc_qstats_backlog_inc(sch, skb); sch->q.qlen++; } else if (net_xmit_drop_count(ret)) { q->stats.pdrop++; @@ -118,6 +119,7 @@ static struct sk_buff *red_dequeue(struct Qdisc *sch) skb = child->dequeue(child); if (skb) { qdisc_bstats_update(sch, skb); + qdisc_qstats_backlog_dec(sch, skb); sch->q.qlen--; } else { if (!red_is_idling(&q->vars)) @@ -139,6 +141,7 @@ static void red_reset(struct Qdisc *sch) struct red_sched_data *q = qdisc_priv(sch); qdisc_reset(q->qdisc); + sch->qstats.backlog = 0; sch->q.qlen = 0; red_restart(&q->vars); } diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index 1342e46574b2..7fa3d6e1291c 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -207,6 +207,7 @@ static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch) return ret; } + qdisc_qstats_backlog_inc(sch, skb); sch->q.qlen++; return NET_XMIT_SUCCESS; } @@ -251,6 +252,7 @@ static struct sk_buff *tbf_dequeue(struct Qdisc *sch) q->t_c = now; q->tokens = toks; q->ptokens = ptoks; + qdisc_qstats_backlog_dec(sch, skb); sch->q.qlen--; qdisc_unthrottled(sch); qdisc_bstats_update(sch, skb); @@ -282,6 +284,7 @@ static void tbf_reset(struct Qdisc *sch) struct tbf_sched_data *q = qdisc_priv(sch); qdisc_reset(q->qdisc); + sch->qstats.backlog = 0; sch->q.qlen = 0; q->t_c = ktime_get_ns(); q->tokens = q->buffer; |