/* Written 1998-2000 by Werner Almesberger, EPFL ICA */
-
#include <linux/module.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
-#include <linux/interrupt.h>
#include <linux/atmdev.h>
#include <linux/atmclip.h>
-#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
-#include <linux/file.h> /* for fput */
+#include <linux/file.h> /* for fput */
#include <net/netlink.h>
#include <net/pkt_sched.h>
-#include <net/sock.h>
-
-
-extern struct socket *sockfd_lookup(int fd, int *err); /* @@@ fix this */
-
-#if 0 /* control */
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-#if 0 /* data */
-#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define D2PRINTK(format,args...)
-#endif
+extern struct socket *sockfd_lookup(int fd, int *err); /* @@@ fix this */
/*
* The ATM queuing discipline provides a framework for invoking classifiers
* - should lock the flow while there is data in the queue (?)
*/
-
-#define PRIV(sch) qdisc_priv(sch)
#define VCC2FLOW(vcc) ((struct atm_flow_data *) ((vcc)->user_back))
-
struct atm_flow_data {
- struct Qdisc *q; /* FIFO, TBF, etc. */
+ struct Qdisc *q; /* FIFO, TBF, etc. */
struct tcf_proto *filter_list;
- struct atm_vcc *vcc; /* VCC; NULL if VCC is closed */
- void (*old_pop)(struct atm_vcc *vcc,struct sk_buff *skb); /* chaining */
+ struct atm_vcc *vcc; /* VCC; NULL if VCC is closed */
+ void (*old_pop)(struct atm_vcc *vcc,
+ struct sk_buff *skb); /* chaining */
struct atm_qdisc_data *parent; /* parent qdisc */
struct socket *sock; /* for closing */
u32 classid; /* x:y type ID */
int ref; /* reference count */
- struct gnet_stats_basic bstats;
+ struct gnet_stats_basic_packed bstats;
struct gnet_stats_queue qstats;
- spinlock_t *stats_lock;
struct atm_flow_data *next;
struct atm_flow_data *excess; /* flow for excess traffic;
NULL to set CLP instead */
struct atm_flow_data link; /* unclassified skbs go here */
struct atm_flow_data *flows; /* NB: "link" is also on this
list */
- struct tasklet_struct task; /* requeue tasklet */
+ struct tasklet_struct task; /* dequeue tasklet */
};
-
/* ------------------------- Class/flow operations ------------------------- */
-
-static int find_flow(struct atm_qdisc_data *qdisc,struct atm_flow_data *flow)
+static int find_flow(struct atm_qdisc_data *qdisc, struct atm_flow_data *flow)
{
struct atm_flow_data *walk;
- DPRINTK("find_flow(qdisc %p,flow %p)\n",qdisc,flow);
+ pr_debug("find_flow(qdisc %p,flow %p)\n", qdisc, flow);
for (walk = qdisc->flows; walk; walk = walk->next)
- if (walk == flow) return 1;
- DPRINTK("find_flow: not found\n");
+ if (walk == flow)
+ return 1;
+ pr_debug("find_flow: not found\n");
return 0;
}
-
-static __inline__ struct atm_flow_data *lookup_flow(struct Qdisc *sch,
- u32 classid)
+static inline struct atm_flow_data *lookup_flow(struct Qdisc *sch, u32 classid)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
for (flow = p->flows; flow; flow = flow->next)
- if (flow->classid == classid) break;
+ if (flow->classid == classid)
+ break;
return flow;
}
-
-static int atm_tc_graft(struct Qdisc *sch,unsigned long arg,
- struct Qdisc *new,struct Qdisc **old)
+static int atm_tc_graft(struct Qdisc *sch, unsigned long arg,
+ struct Qdisc *new, struct Qdisc **old)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) arg;
-
- DPRINTK("atm_tc_graft(sch %p,[qdisc %p],flow %p,new %p,old %p)\n",sch,
- p,flow,new,old);
- if (!find_flow(p,flow)) return -EINVAL;
- if (!new) new = &noop_qdisc;
- *old = xchg(&flow->q,new);
- if (*old) qdisc_reset(*old);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)arg;
+
+ pr_debug("atm_tc_graft(sch %p,[qdisc %p],flow %p,new %p,old %p)\n",
+ sch, p, flow, new, old);
+ if (!find_flow(p, flow))
+ return -EINVAL;
+ if (!new)
+ new = &noop_qdisc;
+ *old = flow->q;
+ flow->q = new;
+ if (*old)
+ qdisc_reset(*old);
return 0;
}
-
-static struct Qdisc *atm_tc_leaf(struct Qdisc *sch,unsigned long cl)
+static struct Qdisc *atm_tc_leaf(struct Qdisc *sch, unsigned long cl)
{
- struct atm_flow_data *flow = (struct atm_flow_data *) cl;
+ struct atm_flow_data *flow = (struct atm_flow_data *)cl;
- DPRINTK("atm_tc_leaf(sch %p,flow %p)\n",sch,flow);
+ pr_debug("atm_tc_leaf(sch %p,flow %p)\n", sch, flow);
return flow ? flow->q : NULL;
}
-
-static unsigned long atm_tc_get(struct Qdisc *sch,u32 classid)
+static unsigned long atm_tc_get(struct Qdisc *sch, u32 classid)
{
- struct atm_qdisc_data *p __attribute__((unused)) = PRIV(sch);
+ struct atm_qdisc_data *p __maybe_unused = qdisc_priv(sch);
struct atm_flow_data *flow;
- DPRINTK("atm_tc_get(sch %p,[qdisc %p],classid %x)\n",sch,p,classid);
- flow = lookup_flow(sch,classid);
- if (flow) flow->ref++;
- DPRINTK("atm_tc_get: flow %p\n",flow);
- return (unsigned long) flow;
+ pr_debug("atm_tc_get(sch %p,[qdisc %p],classid %x)\n", sch, p, classid);
+ flow = lookup_flow(sch, classid);
+ if (flow)
+ flow->ref++;
+ pr_debug("atm_tc_get: flow %p\n", flow);
+ return (unsigned long)flow;
}
-
static unsigned long atm_tc_bind_filter(struct Qdisc *sch,
- unsigned long parent, u32 classid)
+ unsigned long parent, u32 classid)
{
- return atm_tc_get(sch,classid);
+ return atm_tc_get(sch, classid);
}
/*
* requested (atm_tc_destroy, etc.). The assumption here is that we never drop
* anything that still seems to be in use.
*/
-
static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) cl;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)cl;
struct atm_flow_data **prev;
- DPRINTK("atm_tc_put(sch %p,[qdisc %p],flow %p)\n",sch,p,flow);
- if (--flow->ref) return;
- DPRINTK("atm_tc_put: destroying\n");
+ pr_debug("atm_tc_put(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
+ if (--flow->ref)
+ return;
+ pr_debug("atm_tc_put: destroying\n");
for (prev = &p->flows; *prev; prev = &(*prev)->next)
- if (*prev == flow) break;
+ if (*prev == flow)
+ break;
if (!*prev) {
- printk(KERN_CRIT "atm_tc_put: class %p not found\n",flow);
+ printk(KERN_CRIT "atm_tc_put: class %p not found\n", flow);
return;
}
*prev = flow->next;
- DPRINTK("atm_tc_put: qdisc %p\n",flow->q);
+ pr_debug("atm_tc_put: qdisc %p\n", flow->q);
qdisc_destroy(flow->q);
- tcf_destroy_chain(flow->filter_list);
+ tcf_destroy_chain(&flow->filter_list);
if (flow->sock) {
- DPRINTK("atm_tc_put: f_count %d\n",
- file_count(flow->sock->file));
+ pr_debug("atm_tc_put: f_count %ld\n",
+ file_count(flow->sock->file));
flow->vcc->pop = flow->old_pop;
sockfd_put(flow->sock);
}
- if (flow->excess) atm_tc_put(sch,(unsigned long) flow->excess);
- if (flow != &p->link) kfree(flow);
+ if (flow->excess)
+ atm_tc_put(sch, (unsigned long)flow->excess);
+ if (flow != &p->link)
+ kfree(flow);
/*
* If flow == &p->link, the qdisc no longer works at this point and
* needs to be removed. (By the caller of atm_tc_put.)
*/
}
-
-static void sch_atm_pop(struct atm_vcc *vcc,struct sk_buff *skb)
+static void sch_atm_pop(struct atm_vcc *vcc, struct sk_buff *skb)
{
struct atm_qdisc_data *p = VCC2FLOW(vcc)->parent;
- D2PRINTK("sch_atm_pop(vcc %p,skb %p,[qdisc %p])\n",vcc,skb,p);
- VCC2FLOW(vcc)->old_pop(vcc,skb);
+ pr_debug("sch_atm_pop(vcc %p,skb %p,[qdisc %p])\n", vcc, skb, p);
+ VCC2FLOW(vcc)->old_pop(vcc, skb);
tasklet_schedule(&p->task);
}
static const u8 llc_oui_ip[] = {
- 0xaa, /* DSAP: non-ISO */
- 0xaa, /* SSAP: non-ISO */
- 0x03, /* Ctrl: Unnumbered Information Command PDU */
- 0x00, /* OUI: EtherType */
+ 0xaa, /* DSAP: non-ISO */
+ 0xaa, /* SSAP: non-ISO */
+ 0x03, /* Ctrl: Unnumbered Information Command PDU */
+ 0x00, /* OUI: EtherType */
0x00, 0x00,
- 0x08, 0x00 }; /* Ethertype IP (0800) */
+ 0x08, 0x00
+}; /* Ethertype IP (0800) */
+
+static const struct nla_policy atm_policy[TCA_ATM_MAX + 1] = {
+ [TCA_ATM_FD] = { .type = NLA_U32 },
+ [TCA_ATM_EXCESS] = { .type = NLA_U32 },
+};
static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
- struct rtattr **tca, unsigned long *arg)
+ struct nlattr **tca, unsigned long *arg)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) *arg;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)*arg;
struct atm_flow_data *excess = NULL;
- struct rtattr *opt = tca[TCA_OPTIONS-1];
- struct rtattr *tb[TCA_ATM_MAX];
+ struct nlattr *opt = tca[TCA_OPTIONS];
+ struct nlattr *tb[TCA_ATM_MAX + 1];
struct socket *sock;
- int fd,error,hdr_len;
+ int fd, error, hdr_len;
void *hdr;
- DPRINTK("atm_tc_change(sch %p,[qdisc %p],classid %x,parent %x,"
- "flow %p,opt %p)\n",sch,p,classid,parent,flow,opt);
+ pr_debug("atm_tc_change(sch %p,[qdisc %p],classid %x,parent %x,"
+ "flow %p,opt %p)\n", sch, p, classid, parent, flow, opt);
/*
* The concept of parents doesn't apply for this qdisc.
*/
* class needs to be removed and a new one added. (This may be changed
* later.)
*/
- if (flow) return -EBUSY;
- if (opt == NULL || rtattr_parse_nested(tb, TCA_ATM_MAX, opt))
+ if (flow)
+ return -EBUSY;
+ if (opt == NULL)
return -EINVAL;
- if (!tb[TCA_ATM_FD-1] || RTA_PAYLOAD(tb[TCA_ATM_FD-1]) < sizeof(fd))
+
+ error = nla_parse_nested(tb, TCA_ATM_MAX, opt, atm_policy);
+ if (error < 0)
+ return error;
+
+ if (!tb[TCA_ATM_FD])
return -EINVAL;
- fd = *(int *) RTA_DATA(tb[TCA_ATM_FD-1]);
- DPRINTK("atm_tc_change: fd %d\n",fd);
- if (tb[TCA_ATM_HDR-1]) {
- hdr_len = RTA_PAYLOAD(tb[TCA_ATM_HDR-1]);
- hdr = RTA_DATA(tb[TCA_ATM_HDR-1]);
- }
- else {
+ fd = nla_get_u32(tb[TCA_ATM_FD]);
+ pr_debug("atm_tc_change: fd %d\n", fd);
+ if (tb[TCA_ATM_HDR]) {
+ hdr_len = nla_len(tb[TCA_ATM_HDR]);
+ hdr = nla_data(tb[TCA_ATM_HDR]);
+ } else {
hdr_len = RFC1483LLC_LEN;
- hdr = NULL; /* default LLC/SNAP for IP */
+ hdr = NULL; /* default LLC/SNAP for IP */
}
- if (!tb[TCA_ATM_EXCESS-1]) excess = NULL;
+ if (!tb[TCA_ATM_EXCESS])
+ excess = NULL;
else {
- if (RTA_PAYLOAD(tb[TCA_ATM_EXCESS-1]) != sizeof(u32))
- return -EINVAL;
- excess = (struct atm_flow_data *) atm_tc_get(sch,
- *(u32 *) RTA_DATA(tb[TCA_ATM_EXCESS-1]));
- if (!excess) return -ENOENT;
+ excess = (struct atm_flow_data *)
+ atm_tc_get(sch, nla_get_u32(tb[TCA_ATM_EXCESS]));
+ if (!excess)
+ return -ENOENT;
}
- DPRINTK("atm_tc_change: type %d, payload %d, hdr_len %d\n",
- opt->rta_type,RTA_PAYLOAD(opt),hdr_len);
- if (!(sock = sockfd_lookup(fd,&error))) return error; /* f_count++ */
- DPRINTK("atm_tc_change: f_count %d\n",file_count(sock->file));
+ pr_debug("atm_tc_change: type %d, payload %d, hdr_len %d\n",
+ opt->nla_type, nla_len(opt), hdr_len);
+ sock = sockfd_lookup(fd, &error);
+ if (!sock)
+ return error; /* f_count++ */
+ pr_debug("atm_tc_change: f_count %ld\n", file_count(sock->file));
if (sock->ops->family != PF_ATMSVC && sock->ops->family != PF_ATMPVC) {
error = -EPROTOTYPE;
goto err_out;
on vcc->send */
if (classid) {
if (TC_H_MAJ(classid ^ sch->handle)) {
- DPRINTK("atm_tc_change: classid mismatch\n");
+ pr_debug("atm_tc_change: classid mismatch\n");
error = -EINVAL;
goto err_out;
}
- if (find_flow(p,flow)) {
+ if (find_flow(p, flow)) {
error = -EEXIST;
goto err_out;
}
- }
- else {
+ } else {
int i;
unsigned long cl;
for (i = 1; i < 0x8000; i++) {
- classid = TC_H_MAKE(sch->handle,0x8000 | i);
- if (!(cl = atm_tc_get(sch,classid))) break;
- atm_tc_put(sch,cl);
+ classid = TC_H_MAKE(sch->handle, 0x8000 | i);
+ cl = atm_tc_get(sch, classid);
+ if (!cl)
+ break;
+ atm_tc_put(sch, cl);
}
}
- DPRINTK("atm_tc_change: new id %x\n",classid);
- flow = kmalloc(sizeof(struct atm_flow_data)+hdr_len,GFP_KERNEL);
- DPRINTK("atm_tc_change: flow %p\n",flow);
+ pr_debug("atm_tc_change: new id %x\n", classid);
+ flow = kzalloc(sizeof(struct atm_flow_data) + hdr_len, GFP_KERNEL);
+ pr_debug("atm_tc_change: flow %p\n", flow);
if (!flow) {
error = -ENOBUFS;
goto err_out;
}
- memset(flow,0,sizeof(*flow));
flow->filter_list = NULL;
- if (!(flow->q = qdisc_create_dflt(sch->dev,&pfifo_qdisc_ops,classid)))
+ flow->q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ &pfifo_qdisc_ops, classid);
+ if (!flow->q)
flow->q = &noop_qdisc;
- DPRINTK("atm_tc_change: qdisc %p\n",flow->q);
+ pr_debug("atm_tc_change: qdisc %p\n", flow->q);
flow->sock = sock;
- flow->vcc = ATM_SD(sock); /* speedup */
+ flow->vcc = ATM_SD(sock); /* speedup */
flow->vcc->user_back = flow;
- DPRINTK("atm_tc_change: vcc %p\n",flow->vcc);
+ pr_debug("atm_tc_change: vcc %p\n", flow->vcc);
flow->old_pop = flow->vcc->pop;
flow->parent = p;
flow->vcc->pop = sch_atm_pop;
p->link.next = flow;
flow->hdr_len = hdr_len;
if (hdr)
- memcpy(flow->hdr,hdr,hdr_len);
+ memcpy(flow->hdr, hdr, hdr_len);
else
- memcpy(flow->hdr,llc_oui_ip,sizeof(llc_oui_ip));
- *arg = (unsigned long) flow;
+ memcpy(flow->hdr, llc_oui_ip, sizeof(llc_oui_ip));
+ *arg = (unsigned long)flow;
return 0;
err_out:
- if (excess) atm_tc_put(sch,(unsigned long) excess);
+ if (excess)
+ atm_tc_put(sch, (unsigned long)excess);
sockfd_put(sock);
return error;
}
-
-static int atm_tc_delete(struct Qdisc *sch,unsigned long arg)
+static int atm_tc_delete(struct Qdisc *sch, unsigned long arg)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) arg;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)arg;
- DPRINTK("atm_tc_delete(sch %p,[qdisc %p],flow %p)\n",sch,p,flow);
- if (!find_flow(PRIV(sch),flow)) return -EINVAL;
- if (flow->filter_list || flow == &p->link) return -EBUSY;
+ pr_debug("atm_tc_delete(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
+ if (!find_flow(qdisc_priv(sch), flow))
+ return -EINVAL;
+ if (flow->filter_list || flow == &p->link)
+ return -EBUSY;
/*
* Reference count must be 2: one for "keepalive" (set at class
* creation), and one for the reference held when calling delete.
*/
if (flow->ref < 2) {
- printk(KERN_ERR "atm_tc_delete: flow->ref == %d\n",flow->ref);
+ printk(KERN_ERR "atm_tc_delete: flow->ref == %d\n", flow->ref);
return -EINVAL;
}
- if (flow->ref > 2) return -EBUSY; /* catch references via excess, etc.*/
- atm_tc_put(sch,arg);
+ if (flow->ref > 2)
+ return -EBUSY; /* catch references via excess, etc. */
+ atm_tc_put(sch, arg);
return 0;
}
-
-static void atm_tc_walk(struct Qdisc *sch,struct qdisc_walker *walker)
+static void atm_tc_walk(struct Qdisc *sch, struct qdisc_walker *walker)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
- DPRINTK("atm_tc_walk(sch %p,[qdisc %p],walker %p)\n",sch,p,walker);
- if (walker->stop) return;
+ pr_debug("atm_tc_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker);
+ if (walker->stop)
+ return;
for (flow = p->flows; flow; flow = flow->next) {
if (walker->count >= walker->skip)
- if (walker->fn(sch,(unsigned long) flow,walker) < 0) {
+ if (walker->fn(sch, (unsigned long)flow, walker) < 0) {
walker->stop = 1;
break;
}
}
}
-
-static struct tcf_proto **atm_tc_find_tcf(struct Qdisc *sch,unsigned long cl)
+static struct tcf_proto **atm_tc_find_tcf(struct Qdisc *sch, unsigned long cl)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) cl;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)cl;
- DPRINTK("atm_tc_find_tcf(sch %p,[qdisc %p],flow %p)\n",sch,p,flow);
+ pr_debug("atm_tc_find_tcf(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
return flow ? &flow->filter_list : &p->link.filter_list;
}
-
/* --------------------------- Qdisc operations ---------------------------- */
-
-static int atm_tc_enqueue(struct sk_buff *skb,struct Qdisc *sch)
+static int atm_tc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = NULL ; /* @@@ */
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = NULL; /* @@@ */
struct tcf_result res;
int result;
int ret = NET_XMIT_POLICED;
- D2PRINTK("atm_tc_enqueue(skb %p,sch %p,[qdisc %p])\n",skb,sch,p);
- result = TC_POLICE_OK; /* be nice to gcc */
+ pr_debug("atm_tc_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
+ result = TC_POLICE_OK; /* be nice to gcc */
if (TC_H_MAJ(skb->priority) != sch->handle ||
- !(flow = (struct atm_flow_data *) atm_tc_get(sch,skb->priority)))
+ !(flow = (struct atm_flow_data *)atm_tc_get(sch, skb->priority)))
for (flow = p->flows; flow; flow = flow->next)
if (flow->filter_list) {
- result = tc_classify(skb,flow->filter_list,
- &res);
- if (result < 0) continue;
- flow = (struct atm_flow_data *) res.class;
- if (!flow) flow = lookup_flow(sch,res.classid);
+ result = tc_classify_compat(skb,
+ flow->filter_list,
+ &res);
+ if (result < 0)
+ continue;
+ flow = (struct atm_flow_data *)res.class;
+ if (!flow)
+ flow = lookup_flow(sch, res.classid);
break;
}
- if (!flow) flow = &p->link;
+ if (!flow)
+ flow = &p->link;
else {
if (flow->vcc)
ATM_SKB(skb)->atm_options = flow->vcc->atm_options;
- /*@@@ looks good ... but it's not supposed to work :-)*/
-#ifdef CONFIG_NET_CLS_POLICE
+ /*@@@ looks good ... but it's not supposed to work :-) */
+#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_POLICE_SHOT:
- kfree_skb(skb);
- break;
- case TC_POLICE_RECLASSIFY:
- if (flow->excess) flow = flow->excess;
- else {
- ATM_SKB(skb)->atm_options |=
- ATM_ATMOPT_CLP;
- break;
- }
- /* fall through */
- case TC_POLICE_OK:
- /* fall through */
- default:
- break;
+ case TC_ACT_QUEUED:
+ case TC_ACT_STOLEN:
+ kfree_skb(skb);
+ return NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+ case TC_ACT_SHOT:
+ kfree_skb(skb);
+ goto drop;
+ case TC_POLICE_RECLASSIFY:
+ if (flow->excess)
+ flow = flow->excess;
+ else
+ ATM_SKB(skb)->atm_options |= ATM_ATMOPT_CLP;
+ break;
}
#endif
}
- if (
-#ifdef CONFIG_NET_CLS_POLICE
- result == TC_POLICE_SHOT ||
-#endif
- (ret = flow->q->enqueue(skb,flow->q)) != 0) {
- sch->qstats.drops++;
- if (flow) flow->qstats.drops++;
+
+ ret = qdisc_enqueue(skb, flow->q);
+ if (ret != 0) {
+drop: __maybe_unused
+ if (net_xmit_drop_count(ret)) {
+ sch->qstats.drops++;
+ if (flow)
+ flow->qstats.drops++;
+ }
return ret;
}
- sch->bstats.bytes += skb->len;
+ sch->bstats.bytes += qdisc_pkt_len(skb);
sch->bstats.packets++;
- flow->bstats.bytes += skb->len;
+ flow->bstats.bytes += qdisc_pkt_len(skb);
flow->bstats.packets++;
/*
* Okay, this may seem weird. We pretend we've dropped the packet if
return 0;
}
tasklet_schedule(&p->task);
- return NET_XMIT_BYPASS;
+ return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
}
-
/*
* Dequeue packets and send them over ATM. Note that we quite deliberately
* avoid checking net_device's flow control here, simply because sch_atm
* non-ATM interfaces.
*/
-
static void sch_atm_dequeue(unsigned long data)
{
- struct Qdisc *sch = (struct Qdisc *) data;
- struct atm_qdisc_data *p = PRIV(sch);
+ struct Qdisc *sch = (struct Qdisc *)data;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
struct sk_buff *skb;
- D2PRINTK("sch_atm_dequeue(sch %p,[qdisc %p])\n",sch,p);
+ pr_debug("sch_atm_dequeue(sch %p,[qdisc %p])\n", sch, p);
for (flow = p->link.next; flow; flow = flow->next)
/*
* If traffic is properly shaped, this won't generate nasty
* little bursts. Otherwise, it may ... (but that's okay)
*/
- while ((skb = flow->q->dequeue(flow->q))) {
- if (!atm_may_send(flow->vcc,skb->truesize)) {
- (void) flow->q->ops->requeue(skb,flow->q);
+ while ((skb = flow->q->ops->peek(flow->q))) {
+ if (!atm_may_send(flow->vcc, skb->truesize))
break;
- }
- D2PRINTK("atm_tc_dequeue: sending on class %p\n",flow);
+
+ skb = qdisc_dequeue_peeked(flow->q);
+ if (unlikely(!skb))
+ break;
+
+ pr_debug("atm_tc_dequeue: sending on class %p\n", flow);
/* remove any LL header somebody else has attached */
skb_pull(skb, skb_network_offset(skb));
if (skb_headroom(skb) < flow->hdr_len) {
struct sk_buff *new;
- new = skb_realloc_headroom(skb,flow->hdr_len);
+ new = skb_realloc_headroom(skb, flow->hdr_len);
dev_kfree_skb(skb);
- if (!new) continue;
+ if (!new)
+ continue;
skb = new;
}
- D2PRINTK("sch_atm_dequeue: ip %p, data %p\n",
+ pr_debug("sch_atm_dequeue: ip %p, data %p\n",
skb_network_header(skb), skb->data);
ATM_SKB(skb)->vcc = flow->vcc;
- memcpy(skb_push(skb,flow->hdr_len),flow->hdr,
- flow->hdr_len);
+ memcpy(skb_push(skb, flow->hdr_len), flow->hdr,
+ flow->hdr_len);
atomic_add(skb->truesize,
&sk_atm(flow->vcc)->sk_wmem_alloc);
/* atm.atm_options are already set by atm_tc_enqueue */
- (void) flow->vcc->send(flow->vcc,skb);
+ flow->vcc->send(flow->vcc, skb);
}
}
-
static struct sk_buff *atm_tc_dequeue(struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct sk_buff *skb;
- D2PRINTK("atm_tc_dequeue(sch %p,[qdisc %p])\n",sch,p);
+ pr_debug("atm_tc_dequeue(sch %p,[qdisc %p])\n", sch, p);
tasklet_schedule(&p->task);
- skb = p->link.q->dequeue(p->link.q);
- if (skb) sch->q.qlen--;
+ skb = qdisc_dequeue_peeked(p->link.q);
+ if (skb)
+ sch->q.qlen--;
return skb;
}
-
-static int atm_tc_requeue(struct sk_buff *skb,struct Qdisc *sch)
+static struct sk_buff *atm_tc_peek(struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
- int ret;
-
- D2PRINTK("atm_tc_requeue(skb %p,sch %p,[qdisc %p])\n",skb,sch,p);
- ret = p->link.q->ops->requeue(skb,p->link.q);
- if (!ret) {
- sch->q.qlen++;
- sch->qstats.requeues++;
- } else {
- sch->qstats.drops++;
- p->link.qstats.drops++;
- }
- return ret;
-}
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ pr_debug("atm_tc_peek(sch %p,[qdisc %p])\n", sch, p);
+
+ return p->link.q->ops->peek(p->link.q);
+}
static unsigned int atm_tc_drop(struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
unsigned int len;
- DPRINTK("atm_tc_drop(sch %p,[qdisc %p])\n",sch,p);
+ pr_debug("atm_tc_drop(sch %p,[qdisc %p])\n", sch, p);
for (flow = p->flows; flow; flow = flow->next)
if (flow->q->ops->drop && (len = flow->q->ops->drop(flow->q)))
return len;
return 0;
}
-
-static int atm_tc_init(struct Qdisc *sch,struct rtattr *opt)
+static int atm_tc_init(struct Qdisc *sch, struct nlattr *opt)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
- DPRINTK("atm_tc_init(sch %p,[qdisc %p],opt %p)\n",sch,p,opt);
+ pr_debug("atm_tc_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt);
p->flows = &p->link;
- if(!(p->link.q = qdisc_create_dflt(sch->dev,&pfifo_qdisc_ops,
- sch->handle)))
+ p->link.q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue,
+ &pfifo_qdisc_ops, sch->handle);
+ if (!p->link.q)
p->link.q = &noop_qdisc;
- DPRINTK("atm_tc_init: link (%p) qdisc %p\n",&p->link,p->link.q);
+ pr_debug("atm_tc_init: link (%p) qdisc %p\n", &p->link, p->link.q);
p->link.filter_list = NULL;
p->link.vcc = NULL;
p->link.sock = NULL;
p->link.classid = sch->handle;
p->link.ref = 1;
p->link.next = NULL;
- tasklet_init(&p->task,sch_atm_dequeue,(unsigned long) sch);
+ tasklet_init(&p->task, sch_atm_dequeue, (unsigned long)sch);
return 0;
}
-
static void atm_tc_reset(struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
- DPRINTK("atm_tc_reset(sch %p,[qdisc %p])\n",sch,p);
- for (flow = p->flows; flow; flow = flow->next) qdisc_reset(flow->q);
+ pr_debug("atm_tc_reset(sch %p,[qdisc %p])\n", sch, p);
+ for (flow = p->flows; flow; flow = flow->next)
+ qdisc_reset(flow->q);
sch->q.qlen = 0;
}
-
static void atm_tc_destroy(struct Qdisc *sch)
{
- struct atm_qdisc_data *p = PRIV(sch);
+ struct atm_qdisc_data *p = qdisc_priv(sch);
struct atm_flow_data *flow;
- DPRINTK("atm_tc_destroy(sch %p,[qdisc %p])\n",sch,p);
+ pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
+ for (flow = p->flows; flow; flow = flow->next)
+ tcf_destroy_chain(&flow->filter_list);
+
/* races ? */
while ((flow = p->flows)) {
- tcf_destroy_chain(flow->filter_list);
- flow->filter_list = NULL;
if (flow->ref > 1)
- printk(KERN_ERR "atm_destroy: %p->ref = %d\n",flow,
- flow->ref);
- atm_tc_put(sch,(unsigned long) flow);
+ printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow,
+ flow->ref);
+ atm_tc_put(sch, (unsigned long)flow);
if (p->flows == flow) {
printk(KERN_ERR "atm_destroy: putting flow %p didn't "
- "kill it\n",flow);
- p->flows = flow->next; /* brute force */
+ "kill it\n", flow);
+ p->flows = flow->next; /* brute force */
break;
}
}
tasklet_kill(&p->task);
}
-
static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
- struct sk_buff *skb, struct tcmsg *tcm)
+ struct sk_buff *skb, struct tcmsg *tcm)
{
- struct atm_qdisc_data *p = PRIV(sch);
- struct atm_flow_data *flow = (struct atm_flow_data *) cl;
- unsigned char *b = skb_tail_pointer(skb);
- struct rtattr *rta;
-
- DPRINTK("atm_tc_dump_class(sch %p,[qdisc %p],flow %p,skb %p,tcm %p)\n",
- sch,p,flow,skb,tcm);
- if (!find_flow(p,flow)) return -EINVAL;
+ struct atm_qdisc_data *p = qdisc_priv(sch);
+ struct atm_flow_data *flow = (struct atm_flow_data *)cl;
+ struct nlattr *nest;
+
+ pr_debug("atm_tc_dump_class(sch %p,[qdisc %p],flow %p,skb %p,tcm %p)\n",
+ sch, p, flow, skb, tcm);
+ if (!find_flow(p, flow))
+ return -EINVAL;
tcm->tcm_handle = flow->classid;
tcm->tcm_info = flow->q->handle;
- rta = (struct rtattr *) b;
- RTA_PUT(skb,TCA_OPTIONS,0,NULL);
- RTA_PUT(skb,TCA_ATM_HDR,flow->hdr_len,flow->hdr);
+
+ nest = nla_nest_start(skb, TCA_OPTIONS);
+ if (nest == NULL)
+ goto nla_put_failure;
+
+ NLA_PUT(skb, TCA_ATM_HDR, flow->hdr_len, flow->hdr);
if (flow->vcc) {
struct sockaddr_atmpvc pvc;
int state;
pvc.sap_addr.itf = flow->vcc->dev ? flow->vcc->dev->number : -1;
pvc.sap_addr.vpi = flow->vcc->vpi;
pvc.sap_addr.vci = flow->vcc->vci;
- RTA_PUT(skb,TCA_ATM_ADDR,sizeof(pvc),&pvc);
+ NLA_PUT(skb, TCA_ATM_ADDR, sizeof(pvc), &pvc);
state = ATM_VF2VS(flow->vcc->flags);
- RTA_PUT(skb,TCA_ATM_STATE,sizeof(state),&state);
+ NLA_PUT_U32(skb, TCA_ATM_STATE, state);
}
if (flow->excess)
- RTA_PUT(skb,TCA_ATM_EXCESS,sizeof(u32),&flow->classid);
+ NLA_PUT_U32(skb, TCA_ATM_EXCESS, flow->classid);
else {
- static u32 zero;
-
- RTA_PUT(skb,TCA_ATM_EXCESS,sizeof(zero),&zero);
+ NLA_PUT_U32(skb, TCA_ATM_EXCESS, 0);
}
- rta->rta_len = skb_tail_pointer(skb) - b;
+
+ nla_nest_end(skb, nest);
return skb->len;
-rtattr_failure:
- nlmsg_trim(skb, b);
+nla_put_failure:
+ nla_nest_cancel(skb, nest);
return -1;
}
static int
atm_tc_dump_class_stats(struct Qdisc *sch, unsigned long arg,
- struct gnet_dump *d)
+ struct gnet_dump *d)
{
- struct atm_flow_data *flow = (struct atm_flow_data *) arg;
+ struct atm_flow_data *flow = (struct atm_flow_data *)arg;
flow->qstats.qlen = flow->q->q.qlen;
return 0;
}
-static struct Qdisc_class_ops atm_class_ops = {
- .graft = atm_tc_graft,
- .leaf = atm_tc_leaf,
- .get = atm_tc_get,
- .put = atm_tc_put,
- .change = atm_tc_change,
- .delete = atm_tc_delete,
- .walk = atm_tc_walk,
- .tcf_chain = atm_tc_find_tcf,
- .bind_tcf = atm_tc_bind_filter,
- .unbind_tcf = atm_tc_put,
- .dump = atm_tc_dump_class,
- .dump_stats = atm_tc_dump_class_stats,
+static const struct Qdisc_class_ops atm_class_ops = {
+ .graft = atm_tc_graft,
+ .leaf = atm_tc_leaf,
+ .get = atm_tc_get,
+ .put = atm_tc_put,
+ .change = atm_tc_change,
+ .delete = atm_tc_delete,
+ .walk = atm_tc_walk,
+ .tcf_chain = atm_tc_find_tcf,
+ .bind_tcf = atm_tc_bind_filter,
+ .unbind_tcf = atm_tc_put,
+ .dump = atm_tc_dump_class,
+ .dump_stats = atm_tc_dump_class_stats,
};
-static struct Qdisc_ops atm_qdisc_ops = {
- .next = NULL,
- .cl_ops = &atm_class_ops,
- .id = "atm",
- .priv_size = sizeof(struct atm_qdisc_data),
- .enqueue = atm_tc_enqueue,
- .dequeue = atm_tc_dequeue,
- .requeue = atm_tc_requeue,
- .drop = atm_tc_drop,
- .init = atm_tc_init,
- .reset = atm_tc_reset,
- .destroy = atm_tc_destroy,
- .change = NULL,
- .dump = atm_tc_dump,
- .owner = THIS_MODULE,
+static struct Qdisc_ops atm_qdisc_ops __read_mostly = {
+ .cl_ops = &atm_class_ops,
+ .id = "atm",
+ .priv_size = sizeof(struct atm_qdisc_data),
+ .enqueue = atm_tc_enqueue,
+ .dequeue = atm_tc_dequeue,
+ .peek = atm_tc_peek,
+ .drop = atm_tc_drop,
+ .init = atm_tc_init,
+ .reset = atm_tc_reset,
+ .destroy = atm_tc_destroy,
+ .dump = atm_tc_dump,
+ .owner = THIS_MODULE,
};
-
static int __init atm_init(void)
{
return register_qdisc(&atm_qdisc_ops);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff