/*
- * lec.c: Lan Emulation driver
+ * lec.c: Lan Emulation driver
*
* Marko Kiiskila <mkiiskila@yahoo.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
#include <linux/kernel.h>
#include <linux/bitops.h>
#include <linux/capability.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <asm/byteorder.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <net/arp.h>
#include <net/dst.h>
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
-#include <linux/proc_fs.h>
#include <linux/seq_file.h>
/* TokenRing if needed */
/* Proxy LEC knows about bridging */
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-#include <linux/if_bridge.h>
#include "../bridge/br_private.h"
static unsigned char bridge_ula_lec[] = { 0x01, 0x80, 0xc2, 0x00, 0x00 };
#include "lec_arpc.h"
#include "resources.h"
-#if 0
-#define DPRINTK printk
-#else
-#define DPRINTK(format,args...)
-#endif
-
#define DUMP_PACKETS 0 /*
* 0 = None,
* 1 = 30 first bytes
*/
static int lec_open(struct net_device *dev);
-static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
+ struct net_device *dev);
static int lec_close(struct net_device *dev);
-static struct net_device_stats *lec_get_stats(struct net_device *dev);
-static void lec_init(struct net_device *dev);
static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
- unsigned char *mac_addr);
+ const unsigned char *mac_addr);
static int lec_arp_remove(struct lec_priv *priv,
struct lec_arp_table *to_remove);
/* LANE2 functions */
-static void lane2_associate_ind(struct net_device *dev, u8 *mac_address,
- u8 *tlvs, u32 sizeoftlvs);
-static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
+static void lane2_associate_ind(struct net_device *dev, const u8 *mac_address,
+ const u8 *tlvs, u32 sizeoftlvs);
+static int lane2_resolve(struct net_device *dev, const u8 *dst_mac, int force,
u8 **tlvs, u32 *sizeoftlvs);
-static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
- u8 *tlvs, u32 sizeoftlvs);
+static int lane2_associate_req(struct net_device *dev, const u8 *lan_dst,
+ const u8 *tlvs, u32 sizeoftlvs);
-static int lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr,
+static int lec_addr_delete(struct lec_priv *priv, const unsigned char *atm_addr,
unsigned long permanent);
static void lec_arp_check_empties(struct lec_priv *priv,
struct atm_vcc *vcc, struct sk_buff *skb);
static void lec_arp_destroy(struct lec_priv *priv);
static void lec_arp_init(struct lec_priv *priv);
static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
- unsigned char *mac_to_find,
+ const unsigned char *mac_to_find,
int is_rdesc,
struct lec_arp_table **ret_entry);
-static void lec_arp_update(struct lec_priv *priv, unsigned char *mac_addr,
- unsigned char *atm_addr, unsigned long remoteflag,
+static void lec_arp_update(struct lec_priv *priv, const unsigned char *mac_addr,
+ const unsigned char *atm_addr,
+ unsigned long remoteflag,
unsigned int targetless_le_arp);
static void lec_flush_complete(struct lec_priv *priv, unsigned long tran_id);
static int lec_mcast_make(struct lec_priv *priv, struct atm_vcc *vcc);
static void lec_set_flush_tran_id(struct lec_priv *priv,
- unsigned char *atm_addr,
+ const unsigned char *atm_addr,
unsigned long tran_id);
-static void lec_vcc_added(struct lec_priv *priv, struct atmlec_ioc *ioc_data,
+static void lec_vcc_added(struct lec_priv *priv,
+ const struct atmlec_ioc *ioc_data,
struct atm_vcc *vcc,
- void (*old_push) (struct atm_vcc *vcc,
- struct sk_buff *skb));
+ void (*old_push)(struct atm_vcc *vcc,
+ struct sk_buff *skb));
static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc);
+/* must be done under lec_arp_lock */
+static inline void lec_arp_hold(struct lec_arp_table *entry)
+{
+ atomic_inc(&entry->usage);
+}
+
+static inline void lec_arp_put(struct lec_arp_table *entry)
+{
+ if (atomic_dec_and_test(&entry->usage))
+ kfree(entry);
+}
+
static struct lane2_ops lane2_ops = {
lane2_resolve, /* resolve, spec 3.1.3 */
lane2_associate_req, /* associate_req, spec 3.1.4 */
mesg = (struct atmlec_msg *)skb2->data;
mesg->type = l_topology_change;
buff += 4;
- mesg->content.normal.flag = *buff & 0x01; /* 0x01 is topology change */
+ mesg->content.normal.flag = *buff & 0x01;
+ /* 0x01 is topology change */
- priv = (struct lec_priv *)dev->priv;
+ priv = netdev_priv(dev);
atm_force_charge(priv->lecd, skb2->truesize);
sk = sk_atm(priv->lecd);
skb_queue_tail(&sk->sk_receive_queue, skb2);
static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc)
{
struct trh_hdr *trh;
- int riflen, num_rdsc;
+ unsigned int riflen, num_rdsc;
trh = (struct trh_hdr *)packet;
if (trh->daddr[0] & (uint8_t) 0x80)
memset(rdesc, 0, ETH_ALEN);
/* offset 4 comes from LAN destination field in LE control frames */
if (trh->rcf & htons((uint16_t) TR_RCF_DIR_BIT))
- memcpy(&rdesc[4], &trh->rseg[num_rdsc - 2], sizeof(uint16_t));
+ memcpy(&rdesc[4], &trh->rseg[num_rdsc - 2], sizeof(__be16));
else {
- memcpy(&rdesc[4], &trh->rseg[1], sizeof(uint16_t));
+ memcpy(&rdesc[4], &trh->rseg[1], sizeof(__be16));
rdesc[5] = ((ntohs(trh->rseg[0]) & 0x000f) | (rdesc[5] & 0xf0));
}
static int lec_open(struct net_device *dev)
{
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
-
netif_start_queue(dev);
- memset(&priv->stats, 0, sizeof(struct net_device_stats));
+ memset(&dev->stats, 0, sizeof(struct net_device_stats));
return 0;
}
-static __inline__ void
-lec_send(struct atm_vcc *vcc, struct sk_buff *skb, struct lec_priv *priv)
+static void
+lec_send(struct atm_vcc *vcc, struct sk_buff *skb)
{
+ struct net_device *dev = skb->dev;
+
ATM_SKB(skb)->vcc = vcc;
ATM_SKB(skb)->atm_options = vcc->atm_options;
atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
if (vcc->send(vcc, skb) < 0) {
- priv->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
return;
}
- priv->stats.tx_packets++;
- priv->stats.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
}
static void lec_tx_timeout(struct net_device *dev)
{
- printk(KERN_INFO "%s: tx timeout\n", dev->name);
+ pr_info("%s\n", dev->name);
dev->trans_start = jiffies;
netif_wake_queue(dev);
}
-static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
{
struct sk_buff *skb2;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
struct lecdatahdr_8023 *lec_h;
struct atm_vcc *vcc;
struct lec_arp_table *entry;
unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */
#endif
int is_rdesc;
-#if DUMP_PACKETS > 0
- char buf[300];
- int i = 0;
-#endif /* DUMP_PACKETS >0 */
- DPRINTK("lec_start_xmit called\n");
+ pr_debug("called\n");
if (!priv->lecd) {
- printk("%s:No lecd attached\n", dev->name);
- priv->stats.tx_errors++;
+ pr_info("%s:No lecd attached\n", dev->name);
+ dev->stats.tx_errors++;
netif_stop_queue(dev);
- return -EUNATCH;
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
}
- DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
- (long)skb->head, (long)skb->data, (long)skb->tail,
- (long)skb->end);
+ pr_debug("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
+ (long)skb->head, (long)skb->data, (long)skb_tail_pointer(skb),
+ (long)skb_end_pointer(skb));
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
if (memcmp(skb->data, bridge_ula_lec, sizeof(bridge_ula_lec)) == 0)
lec_handle_bridge(skb, dev);
/* Make sure we have room for lec_id */
if (skb_headroom(skb) < 2) {
-
- DPRINTK("lec_start_xmit: reallocating skb\n");
+ pr_debug("reallocating skb\n");
skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
kfree_skb(skb);
if (skb2 == NULL)
- return 0;
+ return NETDEV_TX_OK;
skb = skb2;
}
skb_push(skb, 2);
skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
kfree_skb(skb);
if (skb2 == NULL)
- return 0;
+ return NETDEV_TX_OK;
skb = skb2;
}
#endif
-#if DUMP_PACKETS > 0
- printk("%s: send datalen:%ld lecid:%4.4x\n", dev->name,
- skb->len, priv->lecid);
#if DUMP_PACKETS >= 2
- for (i = 0; i < skb->len && i < 99; i++) {
- sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
- }
+#define MAX_DUMP_SKB 99
#elif DUMP_PACKETS >= 1
- for (i = 0; i < skb->len && i < 30; i++) {
- sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
- }
+#define MAX_DUMP_SKB 30
+#endif
+#if DUMP_PACKETS >= 1
+ printk(KERN_DEBUG "%s: send datalen:%ld lecid:%4.4x\n",
+ dev->name, skb->len, priv->lecid);
+ print_hex_dump(KERN_DEBUG, "", DUMP_OFFSET, 16, 1,
+ skb->data, min(skb->len, MAX_DUMP_SKB), true);
#endif /* DUMP_PACKETS >= 1 */
- if (i == skb->len)
- printk("%s\n", buf);
- else
- printk("%s...\n", buf);
-#endif /* DUMP_PACKETS > 0 */
/* Minimum ethernet-frame size */
#ifdef CONFIG_TR
GFP_ATOMIC);
dev_kfree_skb(skb);
if (skb2 == NULL) {
- priv->stats.tx_dropped++;
- return 0;
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
}
skb = skb2;
}
#endif
entry = NULL;
vcc = lec_arp_resolve(priv, dst, is_rdesc, &entry);
- DPRINTK("%s:vcc:%p vcc_flags:%x, entry:%p\n", dev->name,
- vcc, vcc ? vcc->flags : 0, entry);
+ pr_debug("%s:vcc:%p vcc_flags:%lx, entry:%p\n",
+ dev->name, vcc, vcc ? vcc->flags : 0, entry);
if (!vcc || !test_bit(ATM_VF_READY, &vcc->flags)) {
if (entry && (entry->tx_wait.qlen < LEC_UNRES_QUE_LEN)) {
- DPRINTK("%s:lec_start_xmit: queuing packet, ",
- dev->name);
- DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
- lec_h->h_dest[0], lec_h->h_dest[1],
- lec_h->h_dest[2], lec_h->h_dest[3],
- lec_h->h_dest[4], lec_h->h_dest[5]);
+ pr_debug("%s:queuing packet, MAC address %pM\n",
+ dev->name, lec_h->h_dest);
skb_queue_tail(&entry->tx_wait, skb);
} else {
- DPRINTK
- ("%s:lec_start_xmit: tx queue full or no arp entry, dropping, ",
- dev->name);
- DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
- lec_h->h_dest[0], lec_h->h_dest[1],
- lec_h->h_dest[2], lec_h->h_dest[3],
- lec_h->h_dest[4], lec_h->h_dest[5]);
- priv->stats.tx_dropped++;
+ pr_debug("%s:tx queue full or no arp entry, dropping, MAC address: %pM\n",
+ dev->name, lec_h->h_dest);
+ dev->stats.tx_dropped++;
dev_kfree_skb(skb);
}
- return 0;
+ goto out;
}
#if DUMP_PACKETS > 0
- printk("%s:sending to vpi:%d vci:%d\n", dev->name, vcc->vpi, vcc->vci);
+ printk(KERN_DEBUG "%s:sending to vpi:%d vci:%d\n",
+ dev->name, vcc->vpi, vcc->vci);
#endif /* DUMP_PACKETS > 0 */
while (entry && (skb2 = skb_dequeue(&entry->tx_wait))) {
- DPRINTK("lec.c: emptying tx queue, ");
- DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
- lec_h->h_dest[0], lec_h->h_dest[1], lec_h->h_dest[2],
- lec_h->h_dest[3], lec_h->h_dest[4], lec_h->h_dest[5]);
- lec_send(vcc, skb2, priv);
+ pr_debug("emptying tx queue, MAC address %pM\n", lec_h->h_dest);
+ lec_send(vcc, skb2);
}
- lec_send(vcc, skb, priv);
+ lec_send(vcc, skb);
if (!atm_may_send(vcc, 0)) {
struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc);
netif_wake_queue(dev);
}
+out:
+ if (entry)
+ lec_arp_put(entry);
dev->trans_start = jiffies;
- return 0;
+ return NETDEV_TX_OK;
}
/* The inverse routine to net_open(). */
return 0;
}
-/*
- * Get the current statistics.
- * This may be called with the card open or closed.
- */
-static struct net_device_stats *lec_get_stats(struct net_device *dev)
-{
- return &((struct lec_priv *)dev->priv)->stats;
-}
-
static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
{
unsigned long flags;
struct net_device *dev = (struct net_device *)vcc->proto_data;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
struct atmlec_msg *mesg;
struct lec_arp_table *entry;
int i;
mesg = (struct atmlec_msg *)skb->data;
tmp = skb->data;
tmp += sizeof(struct atmlec_msg);
- DPRINTK("%s: msg from zeppelin:%d\n", dev->name, mesg->type);
+ pr_debug("%s: msg from zeppelin:%d\n", dev->name, mesg->type);
switch (mesg->type) {
case l_set_mac_addr:
- for (i = 0; i < 6; i++) {
+ for (i = 0; i < 6; i++)
dev->dev_addr[i] = mesg->content.normal.mac_addr[i];
- }
break;
case l_del_mac_addr:
- for (i = 0; i < 6; i++) {
+ for (i = 0; i < 6; i++)
dev->dev_addr[i] = 0;
- }
break;
case l_addr_delete:
lec_addr_delete(priv, mesg->content.normal.atm_addr,
mesg->content.normal.atm_addr,
mesg->content.normal.flag,
mesg->content.normal.targetless_le_arp);
- DPRINTK("lec: in l_arp_update\n");
+ pr_debug("in l_arp_update\n");
if (mesg->sizeoftlvs != 0) { /* LANE2 3.1.5 */
- DPRINTK("lec: LANE2 3.1.5, got tlvs, size %d\n",
- mesg->sizeoftlvs);
+ pr_debug("LANE2 3.1.5, got tlvs, size %d\n",
+ mesg->sizeoftlvs);
lane2_associate_ind(dev, mesg->content.normal.mac_addr,
tmp, mesg->sizeoftlvs);
}
priv->flush_timeout = (mesg->content.config.flush_timeout * HZ);
priv->path_switching_delay =
(mesg->content.config.path_switching_delay * HZ);
- priv->lane_version = mesg->content.config.lane_version; /* LANE2 */
+ priv->lane_version = mesg->content.config.lane_version;
+ /* LANE2 */
priv->lane2_ops = NULL;
if (priv->lane_version > 1)
priv->lane2_ops = &lane2_ops;
- if (dev->change_mtu(dev, mesg->content.config.mtu))
- printk("%s: change_mtu to %d failed\n", dev->name,
- mesg->content.config.mtu);
+ if (dev_set_mtu(dev, mesg->content.config.mtu))
+ pr_info("%s: change_mtu to %d failed\n",
+ dev->name, mesg->content.config.mtu);
priv->is_proxy = mesg->content.config.is_proxy;
break;
case l_flush_tran_id:
break;
case l_should_bridge:
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
- {
- struct net_bridge_fdb_entry *f;
-
- DPRINTK
- ("%s: bridge zeppelin asks about 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
- dev->name, mesg->content.proxy.mac_addr[0],
- mesg->content.proxy.mac_addr[1],
- mesg->content.proxy.mac_addr[2],
- mesg->content.proxy.mac_addr[3],
- mesg->content.proxy.mac_addr[4],
- mesg->content.proxy.mac_addr[5]);
-
- if (br_fdb_get_hook == NULL || dev->br_port == NULL)
- break;
+ {
+ pr_debug("%s: bridge zeppelin asks about %pM\n",
+ dev->name, mesg->content.proxy.mac_addr);
- f = br_fdb_get_hook(dev->br_port->br,
- mesg->content.proxy.mac_addr);
- if (f != NULL && f->dst->dev != dev
- && f->dst->state == BR_STATE_FORWARDING) {
- /* hit from bridge table, send LE_ARP_RESPONSE */
- struct sk_buff *skb2;
- struct sock *sk;
-
- DPRINTK
- ("%s: entry found, responding to zeppelin\n",
- dev->name);
- skb2 =
- alloc_skb(sizeof(struct atmlec_msg),
- GFP_ATOMIC);
- if (skb2 == NULL) {
- br_fdb_put_hook(f);
- break;
- }
- skb2->len = sizeof(struct atmlec_msg);
- memcpy(skb2->data, mesg,
- sizeof(struct atmlec_msg));
- atm_force_charge(priv->lecd, skb2->truesize);
- sk = sk_atm(priv->lecd);
- skb_queue_tail(&sk->sk_receive_queue, skb2);
- sk->sk_data_ready(sk, skb2->len);
- }
- if (f != NULL)
- br_fdb_put_hook(f);
+ if (br_fdb_test_addr_hook == NULL)
+ break;
+
+ if (br_fdb_test_addr_hook(dev, mesg->content.proxy.mac_addr)) {
+ /* hit from bridge table, send LE_ARP_RESPONSE */
+ struct sk_buff *skb2;
+ struct sock *sk;
+
+ pr_debug("%s: entry found, responding to zeppelin\n",
+ dev->name);
+ skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
+ if (skb2 == NULL)
+ break;
+ skb2->len = sizeof(struct atmlec_msg);
+ skb_copy_to_linear_data(skb2, mesg, sizeof(*mesg));
+ atm_force_charge(priv->lecd, skb2->truesize);
+ sk = sk_atm(priv->lecd);
+ skb_queue_tail(&sk->sk_receive_queue, skb2);
+ sk->sk_data_ready(sk, skb2->len);
}
+ }
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
break;
default:
- printk("%s: Unknown message type %d\n", dev->name, mesg->type);
+ pr_info("%s: Unknown message type %d\n", dev->name, mesg->type);
dev_kfree_skb(skb);
return -EINVAL;
}
{
struct sk_buff *skb;
struct net_device *dev = (struct net_device *)vcc->proto_data;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
priv->lecd = NULL;
/* Do something needful? */
lec_arp_destroy(priv);
if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
- printk("%s lec_atm_close: closing with messages pending\n",
- dev->name);
- while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue)) != NULL) {
+ pr_info("%s closing with messages pending\n", dev->name);
+ while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue))) {
atm_return(vcc, skb->truesize);
dev_kfree_skb(skb);
}
- printk("%s: Shut down!\n", dev->name);
+ pr_info("%s: Shut down!\n", dev->name);
module_put(THIS_MODULE);
}
.ops = &lecdev_ops,
.type = "lec",
.number = 999, /* dummy device number */
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(lecatm_dev.lock)
};
/*
*/
static int
send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
- unsigned char *mac_addr, unsigned char *atm_addr,
+ const unsigned char *mac_addr, const unsigned char *atm_addr,
struct sk_buff *data)
{
struct sock *sk;
struct sk_buff *skb;
struct atmlec_msg *mesg;
- if (!priv || !priv->lecd) {
+ if (!priv || !priv->lecd)
return -1;
- }
skb = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
if (!skb)
return -1;
sk->sk_data_ready(sk, skb->len);
if (data != NULL) {
- DPRINTK("lec: about to send %d bytes of data\n", data->len);
+ pr_debug("about to send %d bytes of data\n", data->len);
atm_force_charge(priv->lecd, data->truesize);
skb_queue_tail(&sk->sk_receive_queue, data);
sk->sk_data_ready(sk, skb->len);
return;
}
-static void lec_init(struct net_device *dev)
-{
- dev->change_mtu = lec_change_mtu;
- dev->open = lec_open;
- dev->stop = lec_close;
- dev->hard_start_xmit = lec_start_xmit;
- dev->tx_timeout = lec_tx_timeout;
-
- dev->get_stats = lec_get_stats;
- dev->set_multicast_list = lec_set_multicast_list;
- dev->do_ioctl = NULL;
- printk("%s: Initialized!\n", dev->name);
- return;
-}
+static const struct net_device_ops lec_netdev_ops = {
+ .ndo_open = lec_open,
+ .ndo_stop = lec_close,
+ .ndo_start_xmit = lec_start_xmit,
+ .ndo_change_mtu = lec_change_mtu,
+ .ndo_tx_timeout = lec_tx_timeout,
+ .ndo_set_multicast_list = lec_set_multicast_list,
+};
-static unsigned char lec_ctrl_magic[] = {
+static const unsigned char lec_ctrl_magic[] = {
0xff,
0x00,
0x01,
{
unsigned long flags;
struct net_device *dev = (struct net_device *)vcc->proto_data;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
-
-#if DUMP_PACKETS >0
- int i = 0;
- char buf[300];
+ struct lec_priv *priv = netdev_priv(dev);
- printk("%s: lec_push vcc vpi:%d vci:%d\n", dev->name,
- vcc->vpi, vcc->vci);
+#if DUMP_PACKETS > 0
+ printk(KERN_DEBUG "%s: vcc vpi:%d vci:%d\n",
+ dev->name, vcc->vpi, vcc->vci);
#endif
if (!skb) {
- DPRINTK("%s: null skb\n", dev->name);
+ pr_debug("%s: null skb\n", dev->name);
lec_vcc_close(priv, vcc);
return;
}
-#if DUMP_PACKETS > 0
- printk("%s: rcv datalen:%ld lecid:%4.4x\n", dev->name,
- skb->len, priv->lecid);
#if DUMP_PACKETS >= 2
- for (i = 0; i < skb->len && i < 99; i++) {
- sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
- }
+#define MAX_SKB_DUMP 99
#elif DUMP_PACKETS >= 1
- for (i = 0; i < skb->len && i < 30; i++) {
- sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
- }
-#endif /* DUMP_PACKETS >= 1 */
- if (i == skb->len)
- printk("%s\n", buf);
- else
- printk("%s...\n", buf);
+#define MAX_SKB_DUMP 30
+#endif
+#if DUMP_PACKETS > 0
+ printk(KERN_DEBUG "%s: rcv datalen:%ld lecid:%4.4x\n",
+ dev->name, skb->len, priv->lecid);
+ print_hex_dump(KERN_DEBUG, "", DUMP_OFFSET, 16, 1,
+ skb->data, min(MAX_SKB_DUMP, skb->len), true);
#endif /* DUMP_PACKETS > 0 */
- if (memcmp(skb->data, lec_ctrl_magic, 4) == 0) { /* Control frame, to daemon */
+ if (memcmp(skb->data, lec_ctrl_magic, 4) == 0) {
+ /* Control frame, to daemon */
struct sock *sk = sk_atm(vcc);
- DPRINTK("%s: To daemon\n", dev->name);
+ pr_debug("%s: To daemon\n", dev->name);
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, skb->len);
} else { /* Data frame, queue to protocol handlers */
unsigned char *src, *dst;
atm_return(vcc, skb->truesize);
- if (*(uint16_t *) skb->data == htons(priv->lecid) ||
+ if (*(__be16 *) skb->data == htons(priv->lecid) ||
!priv->lecd || !(dev->flags & IFF_UP)) {
/*
* Probably looping back, or if lecd is missing,
* lecd has gone down
*/
- DPRINTK("Ignoring frame...\n");
+ pr_debug("Ignoring frame...\n");
dev_kfree_skb(skb);
return;
}
entry = lec_arp_find(priv, src);
if (entry && entry->vcc != vcc) {
lec_arp_remove(priv, entry);
- kfree(entry);
+ lec_arp_put(entry);
}
}
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
dev_kfree_skb(skb);
return;
}
- if (priv->lec_arp_empty_ones) {
+ if (!hlist_empty(&priv->lec_arp_empty_ones))
lec_arp_check_empties(priv, vcc, skb);
- }
- skb->dev = dev;
skb_pull(skb, 2); /* skip lec_id */
#ifdef CONFIG_TR
if (priv->is_trdev)
else
#endif
skb->protocol = eth_type_trans(skb, dev);
- priv->stats.rx_packets++;
- priv->stats.rx_bytes += skb->len;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
netif_rx(skb);
}
struct net_device *dev = skb->dev;
if (vpriv == NULL) {
- printk("lec_pop(): vpriv = NULL!?!?!?\n");
+ pr_info("vpriv = NULL!?!?!?\n");
return;
}
/* Lecd must be up in this case */
bytes_left = copy_from_user(&ioc_data, arg, sizeof(struct atmlec_ioc));
- if (bytes_left != 0) {
- printk
- ("lec: lec_vcc_attach, copy from user failed for %d bytes\n",
- bytes_left);
- }
+ if (bytes_left != 0)
+ pr_info("copy from user failed for %d bytes\n", bytes_left);
if (ioc_data.dev_num < 0 || ioc_data.dev_num >= MAX_LEC_ITF ||
!dev_lec[ioc_data.dev_num])
return -EINVAL;
- if (!(vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL)))
+ vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL);
+ if (!vpriv)
return -ENOMEM;
vpriv->xoff = 0;
vpriv->old_pop = vcc->pop;
vcc->user_back = vpriv;
vcc->pop = lec_pop;
- lec_vcc_added(dev_lec[ioc_data.dev_num]->priv,
+ lec_vcc_added(netdev_priv(dev_lec[ioc_data.dev_num]),
&ioc_data, vcc, vcc->push);
vcc->proto_data = dev_lec[ioc_data.dev_num];
vcc->push = lec_push;
if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
return -EINVAL;
vcc->proto_data = dev_lec[arg];
- return (lec_mcast_make((struct lec_priv *)dev_lec[arg]->priv, vcc));
+ return lec_mcast_make((struct lec_priv *)netdev_priv(dev_lec[arg]),
+ vcc);
}
/* Initialize device. */
dev_lec[i] = alloc_etherdev(size);
if (!dev_lec[i])
return -ENOMEM;
+ dev_lec[i]->netdev_ops = &lec_netdev_ops;
snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i);
if (register_netdev(dev_lec[i])) {
free_netdev(dev_lec[i]);
return -EINVAL;
}
- priv = dev_lec[i]->priv;
+ priv = netdev_priv(dev_lec[i]);
priv->is_trdev = is_trdev;
- lec_init(dev_lec[i]);
} else {
- priv = dev_lec[i]->priv;
+ priv = netdev_priv(dev_lec[i]);
if (priv->lecd)
return -EADDRINUSE;
}
priv->flush_timeout = (4 * HZ);
priv->path_switching_delay = (6 * HZ);
- if (dev_lec[i]->flags & IFF_UP) {
+ if (dev_lec[i]->flags & IFF_UP)
netif_start_queue(dev_lec[i]);
- }
__module_get(THIS_MODULE);
return i;
}
#ifdef CONFIG_PROC_FS
-static char *lec_arp_get_status_string(unsigned char status)
+static const char *lec_arp_get_status_string(unsigned char status)
{
- static char *lec_arp_status_string[] = {
+ static const char *const lec_arp_status_string[] = {
"ESI_UNKNOWN ",
"ESI_ARP_PENDING ",
"ESI_VC_PENDING ",
struct lec_state {
unsigned long flags;
struct lec_priv *locked;
- struct lec_arp_table *entry;
+ struct hlist_node *node;
struct net_device *dev;
int itf;
int arp_table;
int misc_table;
};
-static void *lec_tbl_walk(struct lec_state *state, struct lec_arp_table *tbl,
+static void *lec_tbl_walk(struct lec_state *state, struct hlist_head *tbl,
loff_t *l)
{
- struct lec_arp_table *e = state->entry;
+ struct hlist_node *e = state->node;
+ struct lec_arp_table *tmp;
if (!e)
- e = tbl;
- if (e == (void *)1) {
- e = tbl;
+ e = tbl->first;
+ if (e == SEQ_START_TOKEN) {
+ e = tbl->first;
--*l;
}
- for (; e; e = e->next) {
+
+ hlist_for_each_entry_from(tmp, e, next) {
if (--*l < 0)
break;
}
- state->entry = e;
+ state->node = e;
+
return (*l < 0) ? state : NULL;
}
int p;
for (p = state->arp_table; p < LEC_ARP_TABLE_SIZE; p++) {
- v = lec_tbl_walk(state, priv->lec_arp_tables[p], l);
+ v = lec_tbl_walk(state, &priv->lec_arp_tables[p], l);
if (v)
break;
}
static void *lec_misc_walk(struct lec_state *state, loff_t *l,
struct lec_priv *priv)
{
- struct lec_arp_table *lec_misc_tables[] = {
- priv->lec_arp_empty_ones,
- priv->lec_no_forward,
- priv->mcast_fwds
+ struct hlist_head *lec_misc_tables[] = {
+ &priv->lec_arp_empty_ones,
+ &priv->lec_no_forward,
+ &priv->mcast_fwds
};
void *v = NULL;
int q;
void *v;
dev = state->dev ? state->dev : dev_lec[state->itf];
- v = (dev && dev->priv) ? lec_priv_walk(state, l, dev->priv) : NULL;
+ v = (dev && netdev_priv(dev)) ?
+ lec_priv_walk(state, l, netdev_priv(dev)) : NULL;
if (!v && dev) {
dev_put(dev);
/* Partial state reset for the next time we get called */
state->locked = NULL;
state->arp_table = 0;
state->misc_table = 0;
- state->entry = (void *)1;
+ state->node = SEQ_START_TOKEN;
- return *pos ? lec_get_idx(state, *pos) : (void *)1;
+ return *pos ? lec_get_idx(state, *pos) : SEQ_START_TOKEN;
}
static void lec_seq_stop(struct seq_file *seq, void *v)
static int lec_seq_show(struct seq_file *seq, void *v)
{
- static char lec_banner[] = "Itf MAC ATM destination"
+ static const char lec_banner[] =
+ "Itf MAC ATM destination"
" Status Flags "
"VPI/VCI Recv VPI/VCI\n";
- if (v == (void *)1)
+ if (v == SEQ_START_TOKEN)
seq_puts(seq, lec_banner);
else {
struct lec_state *state = seq->private;
struct net_device *dev = state->dev;
+ struct lec_arp_table *entry = hlist_entry(state->node,
+ struct lec_arp_table,
+ next);
seq_printf(seq, "%s ", dev->name);
- lec_info(seq, state->entry);
+ lec_info(seq, entry);
}
return 0;
}
-static struct seq_operations lec_seq_ops = {
+static const struct seq_operations lec_seq_ops = {
.start = lec_seq_start,
.next = lec_seq_next,
.stop = lec_seq_stop,
static int lec_seq_open(struct inode *inode, struct file *file)
{
- struct lec_state *state;
- struct seq_file *seq;
- int rc = -EAGAIN;
-
- state = kmalloc(sizeof(*state), GFP_KERNEL);
- if (!state) {
- rc = -ENOMEM;
- goto out;
- }
-
- rc = seq_open(file, &lec_seq_ops);
- if (rc)
- goto out_kfree;
- seq = file->private_data;
- seq->private = state;
-out:
- return rc;
-
-out_kfree:
- kfree(state);
- goto out;
-}
-
-static int lec_seq_release(struct inode *inode, struct file *file)
-{
- return seq_release_private(inode, file);
+ return seq_open_private(file, &lec_seq_ops, sizeof(struct lec_state));
}
-static struct file_operations lec_seq_fops = {
+static const struct file_operations lec_seq_fops = {
.owner = THIS_MODULE,
.open = lec_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = lec_seq_release,
+ .release = seq_release_private,
};
#endif
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *p;
- p = create_proc_entry("lec", S_IRUGO, atm_proc_root);
- if (p)
- p->proc_fops = &lec_seq_fops;
+ p = proc_create("lec", S_IRUGO, atm_proc_root, &lec_seq_fops);
+ if (!p) {
+ pr_err("Unable to initialize /proc/net/atm/lec\n");
+ return -ENOMEM;
+ }
#endif
register_atm_ioctl(&lane_ioctl_ops);
- printk("lec.c: " __DATE__ " " __TIME__ " initialized\n");
+ pr_info("lec.c: " __DATE__ " " __TIME__ " initialized\n");
return 0;
}
for (i = 0; i < MAX_LEC_ITF; i++) {
if (dev_lec[i] != NULL) {
- priv = (struct lec_priv *)dev_lec[i]->priv;
+ priv = netdev_priv(dev_lec[i]);
unregister_netdev(dev_lec[i]);
free_netdev(dev_lec[i]);
dev_lec[i] = NULL;
* lec will be used.
* If dst_mac == NULL, targetless LE_ARP will be sent
*/
-static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
+static int lane2_resolve(struct net_device *dev, const u8 *dst_mac, int force,
u8 **tlvs, u32 *sizeoftlvs)
{
unsigned long flags;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
struct lec_arp_table *table;
struct sk_buff *skb;
int retval;
if (table == NULL)
return -1;
- *tlvs = kmalloc(table->sizeoftlvs, GFP_ATOMIC);
+ *tlvs = kmemdup(table->tlvs, table->sizeoftlvs, GFP_ATOMIC);
if (*tlvs == NULL)
return -1;
- memcpy(*tlvs, table->tlvs, table->sizeoftlvs);
*sizeoftlvs = table->sizeoftlvs;
return 0;
if (skb == NULL)
return -1;
skb->len = *sizeoftlvs;
- memcpy(skb->data, *tlvs, *sizeoftlvs);
+ skb_copy_to_linear_data(skb, *tlvs, *sizeoftlvs);
retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb);
}
return retval;
* Returns 1 for success, 0 for failure (out of memory)
*
*/
-static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
- u8 *tlvs, u32 sizeoftlvs)
+static int lane2_associate_req(struct net_device *dev, const u8 *lan_dst,
+ const u8 *tlvs, u32 sizeoftlvs)
{
int retval;
struct sk_buff *skb;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
if (compare_ether_addr(lan_dst, dev->dev_addr))
- return (0); /* not our mac address */
+ return 0; /* not our mac address */
kfree(priv->tlvs); /* NULL if there was no previous association */
- priv->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
+ priv->tlvs = kmemdup(tlvs, sizeoftlvs, GFP_KERNEL);
if (priv->tlvs == NULL)
- return (0);
+ return 0;
priv->sizeoftlvs = sizeoftlvs;
- memcpy(priv->tlvs, tlvs, sizeoftlvs);
skb = alloc_skb(sizeoftlvs, GFP_ATOMIC);
if (skb == NULL)
return 0;
skb->len = sizeoftlvs;
- memcpy(skb->data, tlvs, sizeoftlvs);
+ skb_copy_to_linear_data(skb, tlvs, sizeoftlvs);
retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
if (retval != 0)
- printk("lec.c: lane2_associate_req() failed\n");
+ pr_info("lec.c: lane2_associate_req() failed\n");
/*
* If the previous association has changed we must
* somehow notify other LANE entities about the change
*/
- return (1);
+ return 1;
}
/*
* LANE2: 3.1.5, LE_ASSOCIATE.indication
*
*/
-static void lane2_associate_ind(struct net_device *dev, u8 *mac_addr,
- u8 *tlvs, u32 sizeoftlvs)
+static void lane2_associate_ind(struct net_device *dev, const u8 *mac_addr,
+ const u8 *tlvs, u32 sizeoftlvs)
{
#if 0
int i = 0;
#endif
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_priv *priv = netdev_priv(dev);
#if 0 /*
* Why have the TLVs in LE_ARP entries
* since we do not use them? When you
kfree(entry->tlvs);
- entry->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
+ entry->tlvs = kmemdup(tlvs, sizeoftlvs, GFP_KERNEL);
if (entry->tlvs == NULL)
return;
-
entry->sizeoftlvs = sizeoftlvs;
- memcpy(entry->tlvs, tlvs, sizeoftlvs);
#endif
#if 0
- printk("lec.c: lane2_associate_ind()\n");
- printk("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs);
+ pr_info("\n");
+ pr_info("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs);
while (i < sizeoftlvs)
- printk("%02x ", tlvs[i++]);
+ pr_cont("%02x ", tlvs[i++]);
- printk("\n");
+ pr_cont("\n");
#endif
/* tell MPOA about the TLVs we saw */
*/
#include <linux/types.h>
-#include <linux/sched.h>
#include <linux/timer.h>
-#include <asm/param.h>
+#include <linux/param.h>
#include <asm/atomic.h>
#include <linux/inetdevice.h>
#include <net/route.h>
#if 0
-#define DPRINTK(format,args...)
+#define pr_debug(format, args...)
/*
-#define DPRINTK printk
+ #define pr_debug printk
*/
#endif
#define DEBUG_ARP_TABLE 0
#define LEC_ARP_REFRESH_INTERVAL (3*HZ)
-static void lec_arp_check_expire(unsigned long data);
+static void lec_arp_check_expire(struct work_struct *work);
static void lec_arp_expire_arp(unsigned long data);
-/*
+/*
* Arp table funcs
*/
-#define HASH(ch) (ch & (LEC_ARP_TABLE_SIZE -1))
+#define HASH(ch) (ch & (LEC_ARP_TABLE_SIZE - 1))
/*
* Initialization of arp-cache
{
unsigned short i;
- for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- priv->lec_arp_tables[i] = NULL;
- }
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++)
+ INIT_HLIST_HEAD(&priv->lec_arp_tables[i]);
+ INIT_HLIST_HEAD(&priv->lec_arp_empty_ones);
+ INIT_HLIST_HEAD(&priv->lec_no_forward);
+ INIT_HLIST_HEAD(&priv->mcast_fwds);
spin_lock_init(&priv->lec_arp_lock);
- init_timer(&priv->lec_arp_timer);
- priv->lec_arp_timer.expires = jiffies + LEC_ARP_REFRESH_INTERVAL;
- priv->lec_arp_timer.data = (unsigned long)priv;
- priv->lec_arp_timer.function = lec_arp_check_expire;
- add_timer(&priv->lec_arp_timer);
+ INIT_DELAYED_WORK(&priv->lec_arp_work, lec_arp_check_expire);
+ schedule_delayed_work(&priv->lec_arp_work, LEC_ARP_REFRESH_INTERVAL);
}
static void lec_arp_clear_vccs(struct lec_arp_table *entry)
vcc->user_back = NULL;
vcc->push = entry->old_push;
vcc_release_async(vcc, -EPIPE);
- vcc = NULL;
+ entry->vcc = NULL;
}
if (entry->recv_vcc) {
entry->recv_vcc->push = entry->old_recv_push;
* LANE2: Add to the end of the list to satisfy 8.1.13
*/
static inline void
-lec_arp_add(struct lec_priv *priv, struct lec_arp_table *to_add)
+lec_arp_add(struct lec_priv *priv, struct lec_arp_table *entry)
{
- unsigned short place;
- struct lec_arp_table *tmp;
+ struct hlist_head *tmp;
- place = HASH(to_add->mac_addr[ETH_ALEN - 1]);
- tmp = priv->lec_arp_tables[place];
- to_add->next = NULL;
- if (tmp == NULL)
- priv->lec_arp_tables[place] = to_add;
+ tmp = &priv->lec_arp_tables[HASH(entry->mac_addr[ETH_ALEN - 1])];
+ hlist_add_head(&entry->next, tmp);
- else { /* add to the end */
- while (tmp->next)
- tmp = tmp->next;
- tmp->next = to_add;
- }
-
- DPRINTK("LEC_ARP: Added entry:%2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n",
- 0xff & to_add->mac_addr[0], 0xff & to_add->mac_addr[1],
- 0xff & to_add->mac_addr[2], 0xff & to_add->mac_addr[3],
- 0xff & to_add->mac_addr[4], 0xff & to_add->mac_addr[5]);
+ pr_debug("Added entry:%pM\n", entry->mac_addr);
}
/*
static int
lec_arp_remove(struct lec_priv *priv, struct lec_arp_table *to_remove)
{
- unsigned short place;
- struct lec_arp_table *tmp;
- int remove_vcc = 1;
+ struct hlist_node *node;
+ struct lec_arp_table *entry;
+ int i, remove_vcc = 1;
- if (!to_remove) {
+ if (!to_remove)
return -1;
- }
- place = HASH(to_remove->mac_addr[ETH_ALEN - 1]);
- tmp = priv->lec_arp_tables[place];
- if (tmp == to_remove) {
- priv->lec_arp_tables[place] = tmp->next;
- } else {
- while (tmp && tmp->next != to_remove) {
- tmp = tmp->next;
- }
- if (!tmp) { /* Entry was not found */
- return -1;
- }
- }
- tmp->next = to_remove->next;
+
+ hlist_del(&to_remove->next);
del_timer(&to_remove->timer);
- /* If this is the only MAC connected to this VCC, also tear down
- the VCC */
+ /*
+ * If this is the only MAC connected to this VCC,
+ * also tear down the VCC
+ */
if (to_remove->status >= ESI_FLUSH_PENDING) {
/*
* ESI_FLUSH_PENDING, ESI_FORWARD_DIRECT
*/
- for (place = 0; place < LEC_ARP_TABLE_SIZE; place++) {
- for (tmp = priv->lec_arp_tables[place]; tmp != NULL;
- tmp = tmp->next) {
- if (memcmp
- (tmp->atm_addr, to_remove->atm_addr,
- ATM_ESA_LEN) == 0) {
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ hlist_for_each_entry(entry, node,
+ &priv->lec_arp_tables[i], next) {
+ if (memcmp(to_remove->atm_addr,
+ entry->atm_addr, ATM_ESA_LEN) == 0) {
remove_vcc = 0;
break;
}
}
skb_queue_purge(&to_remove->tx_wait); /* FIXME: good place for this? */
- DPRINTK("LEC_ARP: Removed entry:%2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n",
- 0xff & to_remove->mac_addr[0], 0xff & to_remove->mac_addr[1],
- 0xff & to_remove->mac_addr[2], 0xff & to_remove->mac_addr[3],
- 0xff & to_remove->mac_addr[4], 0xff & to_remove->mac_addr[5]);
+ pr_debug("Removed entry:%pM\n", to_remove->mac_addr);
return 0;
}
#if DEBUG_ARP_TABLE
-static char *get_status_string(unsigned char st)
+static const char *get_status_string(unsigned char st)
{
switch (st) {
case ESI_UNKNOWN:
return "ESI_FLUSH_PENDING";
case ESI_FORWARD_DIRECT:
return "ESI_FORWARD_DIRECT";
- default:
- return "<UNKNOWN>";
}
+ return "<UNKNOWN>";
}
-#endif
static void dump_arp_table(struct lec_priv *priv)
{
-#if DEBUG_ARP_TABLE
- int i, j, offset;
+ struct hlist_node *node;
struct lec_arp_table *rulla;
- char buf[1024];
- struct lec_arp_table **lec_arp_tables =
- (struct lec_arp_table **)priv->lec_arp_tables;
- struct lec_arp_table *lec_arp_empty_ones =
- (struct lec_arp_table *)priv->lec_arp_empty_ones;
- struct lec_arp_table *lec_no_forward =
- (struct lec_arp_table *)priv->lec_no_forward;
- struct lec_arp_table *mcast_fwds = priv->mcast_fwds;
-
- printk("Dump %p:\n", priv);
+ char buf[256];
+ int i, j, offset;
+
+ pr_info("Dump %p:\n", priv);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- rulla = lec_arp_tables[i];
- offset = 0;
- offset += sprintf(buf, "%d: %p\n", i, rulla);
- while (rulla) {
- offset += sprintf(buf + offset, "Mac:");
- for (j = 0; j < ETH_ALEN; j++) {
- offset += sprintf(buf + offset,
- "%2.2x ",
- rulla->mac_addr[j] & 0xff);
- }
- offset += sprintf(buf + offset, "Atm:");
+ hlist_for_each_entry(rulla, node,
+ &priv->lec_arp_tables[i], next) {
+ offset = 0;
+ offset += sprintf(buf, "%d: %p\n", i, rulla);
+ offset += sprintf(buf + offset, "Mac: %pM",
+ rulla->mac_addr);
+ offset += sprintf(buf + offset, " Atm:");
for (j = 0; j < ATM_ESA_LEN; j++) {
offset += sprintf(buf + offset,
"%2.2x ",
"Flags:%x, Packets_flooded:%x, Status: %s ",
rulla->flags, rulla->packets_flooded,
get_status_string(rulla->status));
- offset += sprintf(buf + offset, "->%p\n", rulla->next);
- rulla = rulla->next;
+ pr_info("%s\n", buf);
}
- printk("%s", buf);
}
- rulla = lec_no_forward;
- if (rulla)
- printk("No forward\n");
- while (rulla) {
+
+ if (!hlist_empty(&priv->lec_no_forward))
+ pr_info("No forward\n");
+ hlist_for_each_entry(rulla, node, &priv->lec_no_forward, next) {
offset = 0;
- offset += sprintf(buf + offset, "Mac:");
- for (j = 0; j < ETH_ALEN; j++) {
- offset += sprintf(buf + offset, "%2.2x ",
- rulla->mac_addr[j] & 0xff);
- }
- offset += sprintf(buf + offset, "Atm:");
+ offset += sprintf(buf + offset, "Mac: %pM", rulla->mac_addr);
+ offset += sprintf(buf + offset, " Atm:");
for (j = 0; j < ATM_ESA_LEN; j++) {
offset += sprintf(buf + offset, "%2.2x ",
rulla->atm_addr[j] & 0xff);
"Flags:%x, Packets_flooded:%x, Status: %s ",
rulla->flags, rulla->packets_flooded,
get_status_string(rulla->status));
- offset += sprintf(buf + offset, "->%lx\n", (long)rulla->next);
- rulla = rulla->next;
- printk("%s", buf);
- }
- rulla = lec_arp_empty_ones;
- if (rulla)
- printk("Empty ones\n");
- while (rulla) {
+ pr_info("%s\n", buf);
+ }
+
+ if (!hlist_empty(&priv->lec_arp_empty_ones))
+ pr_info("Empty ones\n");
+ hlist_for_each_entry(rulla, node, &priv->lec_arp_empty_ones, next) {
offset = 0;
- offset += sprintf(buf + offset, "Mac:");
- for (j = 0; j < ETH_ALEN; j++) {
- offset += sprintf(buf + offset, "%2.2x ",
- rulla->mac_addr[j] & 0xff);
- }
- offset += sprintf(buf + offset, "Atm:");
+ offset += sprintf(buf + offset, "Mac: %pM", rulla->mac_addr);
+ offset += sprintf(buf + offset, " Atm:");
for (j = 0; j < ATM_ESA_LEN; j++) {
offset += sprintf(buf + offset, "%2.2x ",
rulla->atm_addr[j] & 0xff);
"Flags:%x, Packets_flooded:%x, Status: %s ",
rulla->flags, rulla->packets_flooded,
get_status_string(rulla->status));
- offset += sprintf(buf + offset, "->%lx\n", (long)rulla->next);
- rulla = rulla->next;
- printk("%s", buf);
+ pr_info("%s", buf);
}
- rulla = mcast_fwds;
- if (rulla)
- printk("Multicast Forward VCCs\n");
- while (rulla) {
+ if (!hlist_empty(&priv->mcast_fwds))
+ pr_info("Multicast Forward VCCs\n");
+ hlist_for_each_entry(rulla, node, &priv->mcast_fwds, next) {
offset = 0;
- offset += sprintf(buf + offset, "Mac:");
- for (j = 0; j < ETH_ALEN; j++) {
- offset += sprintf(buf + offset, "%2.2x ",
- rulla->mac_addr[j] & 0xff);
- }
- offset += sprintf(buf + offset, "Atm:");
+ offset += sprintf(buf + offset, "Mac: %pM", rulla->mac_addr);
+ offset += sprintf(buf + offset, " Atm:");
for (j = 0; j < ATM_ESA_LEN; j++) {
offset += sprintf(buf + offset, "%2.2x ",
rulla->atm_addr[j] & 0xff);
"Flags:%x, Packets_flooded:%x, Status: %s ",
rulla->flags, rulla->packets_flooded,
get_status_string(rulla->status));
- offset += sprintf(buf + offset, "->%lx\n", (long)rulla->next);
- rulla = rulla->next;
- printk("%s", buf);
+ pr_info("%s\n", buf);
}
-#endif
}
+#else
+#define dump_arp_table(priv) do { } while (0)
+#endif
/*
* Destruction of arp-cache
static void lec_arp_destroy(struct lec_priv *priv)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
int i;
- del_timer_sync(&priv->lec_arp_timer);
+ cancel_rearming_delayed_work(&priv->lec_arp_work);
/*
* Remove all entries
spin_lock_irqsave(&priv->lec_arp_lock, flags);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry != NULL;
- entry = next) {
- next = entry->next;
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_tables[i], next) {
lec_arp_remove(priv, entry);
- kfree(entry);
+ lec_arp_put(entry);
}
+ INIT_HLIST_HEAD(&priv->lec_arp_tables[i]);
}
- entry = priv->lec_arp_empty_ones;
- while (entry) {
- next = entry->next;
+
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_empty_ones, next) {
del_timer_sync(&entry->timer);
lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- priv->lec_arp_empty_ones = NULL;
- entry = priv->lec_no_forward;
- while (entry) {
- next = entry->next;
+ INIT_HLIST_HEAD(&priv->lec_arp_empty_ones);
+
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_no_forward, next) {
del_timer_sync(&entry->timer);
lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- priv->lec_no_forward = NULL;
- entry = priv->mcast_fwds;
- while (entry) {
- next = entry->next;
+ INIT_HLIST_HEAD(&priv->lec_no_forward);
+
+ hlist_for_each_entry_safe(entry, node, next, &priv->mcast_fwds, next) {
/* No timer, LANEv2 7.1.20 and 2.3.5.3 */
lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- priv->mcast_fwds = NULL;
+ INIT_HLIST_HEAD(&priv->mcast_fwds);
priv->mcast_vcc = NULL;
- memset(priv->lec_arp_tables, 0,
- sizeof(struct lec_arp_table *) * LEC_ARP_TABLE_SIZE);
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
-/*
+/*
* Find entry by mac_address
*/
static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
- unsigned char *mac_addr)
+ const unsigned char *mac_addr)
{
- unsigned short place;
- struct lec_arp_table *to_return;
+ struct hlist_node *node;
+ struct hlist_head *head;
+ struct lec_arp_table *entry;
- DPRINTK("LEC_ARP: lec_arp_find :%2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n",
- mac_addr[0] & 0xff, mac_addr[1] & 0xff, mac_addr[2] & 0xff,
- mac_addr[3] & 0xff, mac_addr[4] & 0xff, mac_addr[5] & 0xff);
- place = HASH(mac_addr[ETH_ALEN - 1]);
+ pr_debug("%pM\n", mac_addr);
- to_return = priv->lec_arp_tables[place];
- while (to_return) {
- if (!compare_ether_addr(mac_addr, to_return->mac_addr)) {
- return to_return;
- }
- to_return = to_return->next;
+ head = &priv->lec_arp_tables[HASH(mac_addr[ETH_ALEN - 1])];
+ hlist_for_each_entry(entry, node, head, next) {
+ if (!compare_ether_addr(mac_addr, entry->mac_addr))
+ return entry;
}
return NULL;
}
static struct lec_arp_table *make_entry(struct lec_priv *priv,
- unsigned char *mac_addr)
+ const unsigned char *mac_addr)
{
struct lec_arp_table *to_return;
to_return = kzalloc(sizeof(struct lec_arp_table), GFP_ATOMIC);
if (!to_return) {
- printk("LEC: Arp entry kmalloc failed\n");
+ pr_info("LEC: Arp entry kmalloc failed\n");
return NULL;
}
memcpy(to_return->mac_addr, mac_addr, ETH_ALEN);
- init_timer(&to_return->timer);
- to_return->timer.function = lec_arp_expire_arp;
- to_return->timer.data = (unsigned long)to_return;
+ INIT_HLIST_NODE(&to_return->next);
+ setup_timer(&to_return->timer, lec_arp_expire_arp,
+ (unsigned long)to_return);
to_return->last_used = jiffies;
to_return->priv = priv;
skb_queue_head_init(&to_return->tx_wait);
+ atomic_set(&to_return->usage, 1);
return to_return;
}
entry = (struct lec_arp_table *)data;
- DPRINTK("lec_arp_expire_arp\n");
+ pr_debug("\n");
if (entry->status == ESI_ARP_PENDING) {
if (entry->no_tries <= entry->priv->max_retry_count) {
if (entry->is_rdesc)
unsigned long flags;
struct lec_arp_table *to_remove = (struct lec_arp_table *)data;
struct lec_priv *priv = (struct lec_priv *)to_remove->priv;
- struct lec_arp_table *entry = NULL;
del_timer(&to_remove->timer);
- DPRINTK("LEC_ARP %p %p: lec_arp_expire_vcc vpi:%d vci:%d\n",
- to_remove, priv,
- to_remove->vcc ? to_remove->recv_vcc->vpi : 0,
- to_remove->vcc ? to_remove->recv_vcc->vci : 0);
- DPRINTK("eo:%p nf:%p\n", priv->lec_arp_empty_ones,
- priv->lec_no_forward);
+ pr_debug("%p %p: vpi:%d vci:%d\n",
+ to_remove, priv,
+ to_remove->vcc ? to_remove->recv_vcc->vpi : 0,
+ to_remove->vcc ? to_remove->recv_vcc->vci : 0);
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- if (to_remove == priv->lec_arp_empty_ones)
- priv->lec_arp_empty_ones = to_remove->next;
- else {
- entry = priv->lec_arp_empty_ones;
- while (entry && entry->next != to_remove)
- entry = entry->next;
- if (entry)
- entry->next = to_remove->next;
- }
- if (!entry) {
- if (to_remove == priv->lec_no_forward) {
- priv->lec_no_forward = to_remove->next;
- } else {
- entry = priv->lec_no_forward;
- while (entry && entry->next != to_remove)
- entry = entry->next;
- if (entry)
- entry->next = to_remove->next;
- }
- }
+ hlist_del(&to_remove->next);
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
lec_arp_clear_vccs(to_remove);
- kfree(to_remove);
+ lec_arp_put(to_remove);
}
+static bool __lec_arp_check_expire(struct lec_arp_table *entry,
+ unsigned long now,
+ struct lec_priv *priv)
+{
+ unsigned long time_to_check;
+
+ if ((entry->flags) & LEC_REMOTE_FLAG && priv->topology_change)
+ time_to_check = priv->forward_delay_time;
+ else
+ time_to_check = priv->aging_time;
+
+ pr_debug("About to expire: %lx - %lx > %lx\n",
+ now, entry->last_used, time_to_check);
+ if (time_after(now, entry->last_used + time_to_check) &&
+ !(entry->flags & LEC_PERMANENT_FLAG) &&
+ !(entry->mac_addr[0] & 0x01)) { /* LANE2: 7.1.20 */
+ /* Remove entry */
+ pr_debug("Entry timed out\n");
+ lec_arp_remove(priv, entry);
+ lec_arp_put(entry);
+ } else {
+ /* Something else */
+ if ((entry->status == ESI_VC_PENDING ||
+ entry->status == ESI_ARP_PENDING) &&
+ time_after_eq(now, entry->timestamp +
+ priv->max_unknown_frame_time)) {
+ entry->timestamp = jiffies;
+ entry->packets_flooded = 0;
+ if (entry->status == ESI_VC_PENDING)
+ send_to_lecd(priv, l_svc_setup,
+ entry->mac_addr,
+ entry->atm_addr,
+ NULL);
+ }
+ if (entry->status == ESI_FLUSH_PENDING &&
+ time_after_eq(now, entry->timestamp +
+ priv->path_switching_delay)) {
+ lec_arp_hold(entry);
+ return true;
+ }
+ }
+
+ return false;
+}
/*
* Expire entries.
* 1. Re-set timer
* to ESI_FORWARD_DIRECT. This causes the flush period to end
* regardless of the progress of the flush protocol.
*/
-static void lec_arp_check_expire(unsigned long data)
+static void lec_arp_check_expire(struct work_struct *work)
{
unsigned long flags;
- struct lec_priv *priv = (struct lec_priv *)data;
- struct lec_arp_table *entry, *next;
+ struct lec_priv *priv =
+ container_of(work, struct lec_priv, lec_arp_work.work);
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
unsigned long now;
- unsigned long time_to_check;
int i;
- DPRINTK("lec_arp_check_expire %p\n", priv);
- DPRINTK("expire: eo:%p nf:%p\n", priv->lec_arp_empty_ones,
- priv->lec_no_forward);
+ pr_debug("%p\n", priv);
now = jiffies;
+restart:
spin_lock_irqsave(&priv->lec_arp_lock, flags);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry != NULL;) {
- if ((entry->flags) & LEC_REMOTE_FLAG &&
- priv->topology_change)
- time_to_check = priv->forward_delay_time;
- else
- time_to_check = priv->aging_time;
-
- DPRINTK("About to expire: %lx - %lx > %lx\n",
- now, entry->last_used, time_to_check);
- if (time_after(now, entry->last_used + time_to_check)
- && !(entry->flags & LEC_PERMANENT_FLAG)
- && !(entry->mac_addr[0] & 0x01)) { /* LANE2: 7.1.20 */
- /* Remove entry */
- DPRINTK("LEC:Entry timed out\n");
- next = entry->next;
- lec_arp_remove(priv, entry);
- kfree(entry);
- entry = next;
- } else {
- /* Something else */
- if ((entry->status == ESI_VC_PENDING ||
- entry->status == ESI_ARP_PENDING)
- && time_after_eq(now,
- entry->timestamp +
- priv->
- max_unknown_frame_time)) {
- entry->timestamp = jiffies;
- entry->packets_flooded = 0;
- if (entry->status == ESI_VC_PENDING)
- send_to_lecd(priv, l_svc_setup,
- entry->mac_addr,
- entry->atm_addr,
- NULL);
- }
- if (entry->status == ESI_FLUSH_PENDING
- &&
- time_after_eq(now, entry->timestamp +
- priv->path_switching_delay)) {
- struct sk_buff *skb;
-
- while ((skb =
- skb_dequeue(&entry->tx_wait)) !=
- NULL)
- lec_send(entry->vcc, skb,
- entry->priv);
- entry->last_used = jiffies;
- entry->status = ESI_FORWARD_DIRECT;
- }
- entry = entry->next;
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_tables[i], next) {
+ if (__lec_arp_check_expire(entry, now, priv)) {
+ struct sk_buff *skb;
+ struct atm_vcc *vcc = entry->vcc;
+
+ spin_unlock_irqrestore(&priv->lec_arp_lock,
+ flags);
+ while ((skb = skb_dequeue(&entry->tx_wait)))
+ lec_send(vcc, skb);
+ entry->last_used = jiffies;
+ entry->status = ESI_FORWARD_DIRECT;
+ lec_arp_put(entry);
+
+ goto restart;
}
}
}
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- mod_timer(&priv->lec_arp_timer, jiffies + LEC_ARP_REFRESH_INTERVAL);
+ schedule_delayed_work(&priv->lec_arp_work, LEC_ARP_REFRESH_INTERVAL);
}
/*
* Try to find vcc where mac_address is attached.
- *
+ *
*/
static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
- unsigned char *mac_to_find, int is_rdesc,
+ const unsigned char *mac_to_find,
+ int is_rdesc,
struct lec_arp_table **ret_entry)
{
unsigned long flags;
switch (priv->lane_version) {
case 1:
return priv->mcast_vcc;
- break;
case 2: /* LANE2 wants arp for multicast addresses */
if (!compare_ether_addr(mac_to_find, bus_mac))
return priv->mcast_vcc;
if (entry->status == ESI_FORWARD_DIRECT) {
/* Connection Ok */
entry->last_used = jiffies;
+ lec_arp_hold(entry);
*ret_entry = entry;
found = entry->vcc;
goto out;
* If the LE_ARP cache entry is still pending, reset count to 0
* so another LE_ARP request can be made for this frame.
*/
- if (entry->status == ESI_ARP_PENDING) {
+ if (entry->status == ESI_ARP_PENDING)
entry->no_tries = 0;
- }
/*
* Data direct VC not yet set up, check to see if the unknown
* frame count is greater than the limit. If the limit has
entry->packets_flooded <
priv->maximum_unknown_frame_count) {
entry->packets_flooded++;
- DPRINTK("LEC_ARP: Flooding..\n");
+ pr_debug("Flooding..\n");
found = priv->mcast_vcc;
goto out;
}
* or BUS flood limit was reached for an entry which is
* in ESI_ARP_PENDING or ESI_VC_PENDING state.
*/
+ lec_arp_hold(entry);
*ret_entry = entry;
- DPRINTK("lec: entry->status %d entry->vcc %p\n", entry->status,
- entry->vcc);
+ pr_debug("entry->status %d entry->vcc %p\n", entry->status,
+ entry->vcc);
found = NULL;
} else {
/* No matching entry was found */
entry = make_entry(priv, mac_to_find);
- DPRINTK("LEC_ARP: Making entry\n");
+ pr_debug("Making entry\n");
if (!entry) {
found = priv->mcast_vcc;
goto out;
}
static int
-lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr,
+lec_addr_delete(struct lec_priv *priv, const unsigned char *atm_addr,
unsigned long permanent)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
int i;
- DPRINTK("lec_addr_delete\n");
+ pr_debug("\n");
spin_lock_irqsave(&priv->lec_arp_lock, flags);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry != NULL;
- entry = next) {
- next = entry->next;
- if (!memcmp(atm_addr, entry->atm_addr, ATM_ESA_LEN)
- && (permanent ||
- !(entry->flags & LEC_PERMANENT_FLAG))) {
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_tables[i], next) {
+ if (!memcmp(atm_addr, entry->atm_addr, ATM_ESA_LEN) &&
+ (permanent ||
+ !(entry->flags & LEC_PERMANENT_FLAG))) {
lec_arp_remove(priv, entry);
- kfree(entry);
+ lec_arp_put(entry);
}
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
return 0;
}
/*
- * Notifies: Response to arp_request (atm_addr != NULL)
+ * Notifies: Response to arp_request (atm_addr != NULL)
*/
static void
-lec_arp_update(struct lec_priv *priv, unsigned char *mac_addr,
- unsigned char *atm_addr, unsigned long remoteflag,
+lec_arp_update(struct lec_priv *priv, const unsigned char *mac_addr,
+ const unsigned char *atm_addr, unsigned long remoteflag,
unsigned int targetless_le_arp)
{
unsigned long flags;
+ struct hlist_node *node, *next;
struct lec_arp_table *entry, *tmp;
int i;
- DPRINTK("lec:%s", (targetless_le_arp) ? "targetless " : " ");
- DPRINTK("lec_arp_update mac:%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
- mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3],
- mac_addr[4], mac_addr[5]);
+ pr_debug("%smac:%pM\n",
+ (targetless_le_arp) ? "targetless " : "", mac_addr);
spin_lock_irqsave(&priv->lec_arp_lock, flags);
entry = lec_arp_find(priv, mac_addr);
* LANE2: ignore targetless LE_ARPs for which
* we have no entry in the cache. 7.1.30
*/
- if (priv->lec_arp_empty_ones) {
- entry = priv->lec_arp_empty_ones;
- if (!memcmp(entry->atm_addr, atm_addr, ATM_ESA_LEN)) {
- priv->lec_arp_empty_ones = entry->next;
- } else {
- while (entry->next && memcmp(entry->next->atm_addr,
- atm_addr, ATM_ESA_LEN))
- entry = entry->next;
- if (entry->next) {
- tmp = entry;
- entry = entry->next;
- tmp->next = entry->next;
- } else
- entry = NULL;
-
- }
- if (entry) {
- del_timer(&entry->timer);
- tmp = lec_arp_find(priv, mac_addr);
- if (tmp) {
- del_timer(&tmp->timer);
- tmp->status = ESI_FORWARD_DIRECT;
- memcpy(tmp->atm_addr, atm_addr, ATM_ESA_LEN);
- tmp->vcc = entry->vcc;
- tmp->old_push = entry->old_push;
- tmp->last_used = jiffies;
+ if (!hlist_empty(&priv->lec_arp_empty_ones)) {
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_empty_ones, next) {
+ if (memcmp(entry->atm_addr, atm_addr, ATM_ESA_LEN) == 0) {
+ hlist_del(&entry->next);
del_timer(&entry->timer);
- kfree(entry);
- entry = tmp;
- } else {
- entry->status = ESI_FORWARD_DIRECT;
- memcpy(entry->mac_addr, mac_addr, ETH_ALEN);
- entry->last_used = jiffies;
- lec_arp_add(priv, entry);
+ tmp = lec_arp_find(priv, mac_addr);
+ if (tmp) {
+ del_timer(&tmp->timer);
+ tmp->status = ESI_FORWARD_DIRECT;
+ memcpy(tmp->atm_addr, atm_addr, ATM_ESA_LEN);
+ tmp->vcc = entry->vcc;
+ tmp->old_push = entry->old_push;
+ tmp->last_used = jiffies;
+ del_timer(&entry->timer);
+ lec_arp_put(entry);
+ entry = tmp;
+ } else {
+ entry->status = ESI_FORWARD_DIRECT;
+ memcpy(entry->mac_addr, mac_addr, ETH_ALEN);
+ entry->last_used = jiffies;
+ lec_arp_add(priv, entry);
+ }
+ if (remoteflag)
+ entry->flags |= LEC_REMOTE_FLAG;
+ else
+ entry->flags &= ~LEC_REMOTE_FLAG;
+ pr_debug("After update\n");
+ dump_arp_table(priv);
+ goto out;
}
- if (remoteflag)
- entry->flags |= LEC_REMOTE_FLAG;
- else
- entry->flags &= ~LEC_REMOTE_FLAG;
- DPRINTK("After update\n");
- dump_arp_table(priv);
- goto out;
}
}
+
entry = lec_arp_find(priv, mac_addr);
if (!entry) {
entry = make_entry(priv, mac_addr);
memcpy(entry->atm_addr, atm_addr, ATM_ESA_LEN);
del_timer(&entry->timer);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (tmp = priv->lec_arp_tables[i]; tmp; tmp = tmp->next) {
+ hlist_for_each_entry(tmp, node,
+ &priv->lec_arp_tables[i], next) {
if (entry != tmp &&
!memcmp(tmp->atm_addr, atm_addr, ATM_ESA_LEN)) {
/* Vcc to this host exists */
entry->flags &= ~LEC_REMOTE_FLAG;
if (entry->status == ESI_ARP_PENDING || entry->status == ESI_UNKNOWN) {
entry->status = ESI_VC_PENDING;
- send_to_lecd(priv, l_svc_setup, entry->mac_addr, atm_addr,
- NULL);
+ send_to_lecd(priv, l_svc_setup, entry->mac_addr, atm_addr, NULL);
}
- DPRINTK("After update2\n");
+ pr_debug("After update2\n");
dump_arp_table(priv);
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
/*
- * Notifies: Vcc setup ready
+ * Notifies: Vcc setup ready
*/
static void
-lec_vcc_added(struct lec_priv *priv, struct atmlec_ioc *ioc_data,
+lec_vcc_added(struct lec_priv *priv, const struct atmlec_ioc *ioc_data,
struct atm_vcc *vcc,
void (*old_push) (struct atm_vcc *vcc, struct sk_buff *skb))
{
unsigned long flags;
+ struct hlist_node *node;
struct lec_arp_table *entry;
int i, found_entry = 0;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
+ /* Vcc for Multicast Forward. No timer, LANEv2 7.1.20 and 2.3.5.3 */
if (ioc_data->receive == 2) {
- /* Vcc for Multicast Forward. No timer, LANEv2 7.1.20 and 2.3.5.3 */
-
- DPRINTK("LEC_ARP: Attaching mcast forward\n");
+ pr_debug("LEC_ARP: Attaching mcast forward\n");
#if 0
entry = lec_arp_find(priv, bus_mac);
if (!entry) {
- printk("LEC_ARP: Multicast entry not found!\n");
+ pr_info("LEC_ARP: Multicast entry not found!\n");
goto out;
}
memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
entry->recv_vcc = vcc;
entry->old_recv_push = old_push;
- entry->next = priv->mcast_fwds;
- priv->mcast_fwds = entry;
+ hlist_add_head(&entry->next, &priv->mcast_fwds);
goto out;
} else if (ioc_data->receive == 1) {
/*
* Vcc which we don't want to make default vcc,
* attach it anyway.
*/
- DPRINTK
- ("LEC_ARP:Attaching data direct, not default: "
- "%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
- ioc_data->atm_addr[0], ioc_data->atm_addr[1],
- ioc_data->atm_addr[2], ioc_data->atm_addr[3],
- ioc_data->atm_addr[4], ioc_data->atm_addr[5],
- ioc_data->atm_addr[6], ioc_data->atm_addr[7],
- ioc_data->atm_addr[8], ioc_data->atm_addr[9],
- ioc_data->atm_addr[10], ioc_data->atm_addr[11],
- ioc_data->atm_addr[12], ioc_data->atm_addr[13],
- ioc_data->atm_addr[14], ioc_data->atm_addr[15],
- ioc_data->atm_addr[16], ioc_data->atm_addr[17],
- ioc_data->atm_addr[18], ioc_data->atm_addr[19]);
+ pr_debug("LEC_ARP:Attaching data direct, not default: %2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
+ ioc_data->atm_addr[0], ioc_data->atm_addr[1],
+ ioc_data->atm_addr[2], ioc_data->atm_addr[3],
+ ioc_data->atm_addr[4], ioc_data->atm_addr[5],
+ ioc_data->atm_addr[6], ioc_data->atm_addr[7],
+ ioc_data->atm_addr[8], ioc_data->atm_addr[9],
+ ioc_data->atm_addr[10], ioc_data->atm_addr[11],
+ ioc_data->atm_addr[12], ioc_data->atm_addr[13],
+ ioc_data->atm_addr[14], ioc_data->atm_addr[15],
+ ioc_data->atm_addr[16], ioc_data->atm_addr[17],
+ ioc_data->atm_addr[18], ioc_data->atm_addr[19]);
entry = make_entry(priv, bus_mac);
if (entry == NULL)
goto out;
entry->status = ESI_UNKNOWN;
entry->timer.expires = jiffies + priv->vcc_timeout_period;
entry->timer.function = lec_arp_expire_vcc;
+ hlist_add_head(&entry->next, &priv->lec_no_forward);
add_timer(&entry->timer);
- entry->next = priv->lec_no_forward;
- priv->lec_no_forward = entry;
dump_arp_table(priv);
goto out;
}
- DPRINTK
- ("LEC_ARP:Attaching data direct, default: "
- "%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
- ioc_data->atm_addr[0], ioc_data->atm_addr[1],
- ioc_data->atm_addr[2], ioc_data->atm_addr[3],
- ioc_data->atm_addr[4], ioc_data->atm_addr[5],
- ioc_data->atm_addr[6], ioc_data->atm_addr[7],
- ioc_data->atm_addr[8], ioc_data->atm_addr[9],
- ioc_data->atm_addr[10], ioc_data->atm_addr[11],
- ioc_data->atm_addr[12], ioc_data->atm_addr[13],
- ioc_data->atm_addr[14], ioc_data->atm_addr[15],
- ioc_data->atm_addr[16], ioc_data->atm_addr[17],
- ioc_data->atm_addr[18], ioc_data->atm_addr[19]);
+ pr_debug("LEC_ARP:Attaching data direct, default: %2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x\n",
+ ioc_data->atm_addr[0], ioc_data->atm_addr[1],
+ ioc_data->atm_addr[2], ioc_data->atm_addr[3],
+ ioc_data->atm_addr[4], ioc_data->atm_addr[5],
+ ioc_data->atm_addr[6], ioc_data->atm_addr[7],
+ ioc_data->atm_addr[8], ioc_data->atm_addr[9],
+ ioc_data->atm_addr[10], ioc_data->atm_addr[11],
+ ioc_data->atm_addr[12], ioc_data->atm_addr[13],
+ ioc_data->atm_addr[14], ioc_data->atm_addr[15],
+ ioc_data->atm_addr[16], ioc_data->atm_addr[17],
+ ioc_data->atm_addr[18], ioc_data->atm_addr[19]);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry;
- entry = entry->next) {
+ hlist_for_each_entry(entry, node,
+ &priv->lec_arp_tables[i], next) {
if (memcmp
(ioc_data->atm_addr, entry->atm_addr,
ATM_ESA_LEN) == 0) {
- DPRINTK("LEC_ARP: Attaching data direct\n");
- DPRINTK("Currently -> Vcc: %d, Rvcc:%d\n",
- entry->vcc ? entry->vcc->vci : 0,
- entry->recv_vcc ? entry->recv_vcc->
- vci : 0);
+ pr_debug("LEC_ARP: Attaching data direct\n");
+ pr_debug("Currently -> Vcc: %d, Rvcc:%d\n",
+ entry->vcc ? entry->vcc->vci : 0,
+ entry->recv_vcc ? entry->recv_vcc->
+ vci : 0);
found_entry = 1;
del_timer(&entry->timer);
entry->vcc = vcc;
}
}
if (found_entry) {
- DPRINTK("After vcc was added\n");
+ pr_debug("After vcc was added\n");
dump_arp_table(priv);
goto out;
}
memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
memset(entry->mac_addr, 0, ETH_ALEN);
entry->status = ESI_UNKNOWN;
- entry->next = priv->lec_arp_empty_ones;
- priv->lec_arp_empty_ones = entry;
+ hlist_add_head(&entry->next, &priv->lec_arp_empty_ones);
entry->timer.expires = jiffies + priv->vcc_timeout_period;
entry->timer.function = lec_arp_expire_vcc;
add_timer(&entry->timer);
- DPRINTK("After vcc was added\n");
+ pr_debug("After vcc was added\n");
dump_arp_table(priv);
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
static void lec_flush_complete(struct lec_priv *priv, unsigned long tran_id)
{
unsigned long flags;
+ struct hlist_node *node;
struct lec_arp_table *entry;
int i;
- DPRINTK("LEC:lec_flush_complete %lx\n", tran_id);
+ pr_debug("%lx\n", tran_id);
+restart:
spin_lock_irqsave(&priv->lec_arp_lock, flags);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry;
- entry = entry->next) {
- if (entry->flush_tran_id == tran_id
- && entry->status == ESI_FLUSH_PENDING) {
+ hlist_for_each_entry(entry, node,
+ &priv->lec_arp_tables[i], next) {
+ if (entry->flush_tran_id == tran_id &&
+ entry->status == ESI_FLUSH_PENDING) {
struct sk_buff *skb;
+ struct atm_vcc *vcc = entry->vcc;
- while ((skb =
- skb_dequeue(&entry->tx_wait)) != NULL)
- lec_send(entry->vcc, skb, entry->priv);
+ lec_arp_hold(entry);
+ spin_unlock_irqrestore(&priv->lec_arp_lock,
+ flags);
+ while ((skb = skb_dequeue(&entry->tx_wait)))
+ lec_send(vcc, skb);
+ entry->last_used = jiffies;
entry->status = ESI_FORWARD_DIRECT;
- DPRINTK("LEC_ARP: Flushed\n");
+ lec_arp_put(entry);
+ pr_debug("LEC_ARP: Flushed\n");
+ goto restart;
}
}
}
static void
lec_set_flush_tran_id(struct lec_priv *priv,
- unsigned char *atm_addr, unsigned long tran_id)
+ const unsigned char *atm_addr, unsigned long tran_id)
{
unsigned long flags;
+ struct hlist_node *node;
struct lec_arp_table *entry;
int i;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++)
- for (entry = priv->lec_arp_tables[i]; entry;
- entry = entry->next)
+ hlist_for_each_entry(entry, node,
+ &priv->lec_arp_tables[i], next) {
if (!memcmp(atm_addr, entry->atm_addr, ATM_ESA_LEN)) {
entry->flush_tran_id = tran_id;
- DPRINTK
- ("Set flush transaction id to %lx for %p\n",
- tran_id, entry);
+ pr_debug("Set flush transaction id to %lx for %p\n",
+ tran_id, entry);
}
+ }
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
struct lec_vcc_priv *vpriv;
int err = 0;
- if (!(vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL)))
+ vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL);
+ if (!vpriv)
return -ENOMEM;
vpriv->xoff = 0;
vpriv->old_pop = vcc->pop;
static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
int i;
- DPRINTK("LEC_ARP: lec_vcc_close vpi:%d vci:%d\n", vcc->vpi, vcc->vci);
+ pr_debug("LEC_ARP: lec_vcc_close vpi:%d vci:%d\n", vcc->vpi, vcc->vci);
dump_arp_table(priv);
+
spin_lock_irqsave(&priv->lec_arp_lock, flags);
+
for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry; entry = next) {
- next = entry->next;
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_tables[i], next) {
if (vcc == entry->vcc) {
lec_arp_remove(priv, entry);
- kfree(entry);
- if (priv->mcast_vcc == vcc) {
+ lec_arp_put(entry);
+ if (priv->mcast_vcc == vcc)
priv->mcast_vcc = NULL;
- }
}
}
}
- entry = priv->lec_arp_empty_ones;
- priv->lec_arp_empty_ones = NULL;
- while (entry != NULL) {
- next = entry->next;
- if (entry->vcc == vcc) { /* leave it out from the list */
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_empty_ones, next) {
+ if (entry->vcc == vcc) {
lec_arp_clear_vccs(entry);
del_timer(&entry->timer);
- kfree(entry);
- } else { /* put it back to the list */
- entry->next = priv->lec_arp_empty_ones;
- priv->lec_arp_empty_ones = entry;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- entry = next;
}
- entry = priv->lec_no_forward;
- priv->lec_no_forward = NULL;
- while (entry != NULL) {
- next = entry->next;
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_no_forward, next) {
if (entry->recv_vcc == vcc) {
lec_arp_clear_vccs(entry);
del_timer(&entry->timer);
- kfree(entry);
- } else {
- entry->next = priv->lec_no_forward;
- priv->lec_no_forward = entry;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- entry = next;
}
- entry = priv->mcast_fwds;
- priv->mcast_fwds = NULL;
- while (entry != NULL) {
- next = entry->next;
+ hlist_for_each_entry_safe(entry, node, next, &priv->mcast_fwds, next) {
if (entry->recv_vcc == vcc) {
lec_arp_clear_vccs(entry);
/* No timer, LANEv2 7.1.20 and 2.3.5.3 */
- kfree(entry);
- } else {
- entry->next = priv->mcast_fwds;
- priv->mcast_fwds = entry;
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
}
- entry = next;
}
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
struct atm_vcc *vcc, struct sk_buff *skb)
{
unsigned long flags;
- struct lec_arp_table *entry, *prev;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry, *tmp;
struct lecdatahdr_8023 *hdr = (struct lecdatahdr_8023 *)skb->data;
unsigned char *src;
#ifdef CONFIG_TR
src = hdr->h_source;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- entry = priv->lec_arp_empty_ones;
- if (vcc == entry->vcc) {
- del_timer(&entry->timer);
- memcpy(entry->mac_addr, src, ETH_ALEN);
- entry->status = ESI_FORWARD_DIRECT;
- entry->last_used = jiffies;
- priv->lec_arp_empty_ones = entry->next;
- /* We might have got an entry */
- if ((prev = lec_arp_find(priv, src))) {
- lec_arp_remove(priv, prev);
- kfree(prev);
+ hlist_for_each_entry_safe(entry, node, next,
+ &priv->lec_arp_empty_ones, next) {
+ if (vcc == entry->vcc) {
+ del_timer(&entry->timer);
+ memcpy(entry->mac_addr, src, ETH_ALEN);
+ entry->status = ESI_FORWARD_DIRECT;
+ entry->last_used = jiffies;
+ /* We might have got an entry */
+ tmp = lec_arp_find(priv, src);
+ if (tmp) {
+ lec_arp_remove(priv, tmp);
+ lec_arp_put(tmp);
+ }
+ hlist_del(&entry->next);
+ lec_arp_add(priv, entry);
+ goto out;
}
- lec_arp_add(priv, entry);
- goto out;
- }
- prev = entry;
- entry = entry->next;
- while (entry && entry->vcc != vcc) {
- prev = entry;
- entry = entry->next;
- }
- if (!entry) {
- DPRINTK("LEC_ARP: Arp_check_empties: entry not found!\n");
- goto out;
}
- del_timer(&entry->timer);
- memcpy(entry->mac_addr, src, ETH_ALEN);
- entry->status = ESI_FORWARD_DIRECT;
- entry->last_used = jiffies;
- prev->next = entry->next;
- if ((prev = lec_arp_find(priv, src))) {
- lec_arp_remove(priv, prev);
- kfree(prev);
- }
- lec_arp_add(priv, entry);
+ pr_debug("LEC_ARP: Arp_check_empties: entry not found!\n");
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff