/*
- * lec.c: Lan Emulation driver
- * Marko Kiiskila mkiiskila@yahoo.com
+ * lec.c: Lan Emulation driver
*
+ * Marko Kiiskila <mkiiskila@yahoo.com>
*/
#include <linux/kernel.h>
#include <linux/if_bridge.h>
#include "../bridge/br_private.h"
-static unsigned char bridge_ula_lec[] = {0x01, 0x80, 0xc2, 0x00, 0x00};
+static unsigned char bridge_ula_lec[] = { 0x01, 0x80, 0xc2, 0x00, 0x00 };
#endif
/* Modular too */
#define DPRINTK(format,args...)
#endif
-#define DUMP_PACKETS 0 /* 0 = None,
- * 1 = 30 first bytes
- * 2 = Whole packet
- */
+#define DUMP_PACKETS 0 /*
+ * 0 = None,
+ * 1 = 30 first bytes
+ * 2 = Whole packet
+ */
-#define LEC_UNRES_QUE_LEN 8 /* number of tx packets to queue for a
- single destination while waiting for SVC */
+#define LEC_UNRES_QUE_LEN 8 /*
+ * number of tx packets to queue for a
+ * single destination while waiting for SVC
+ */
static int lec_open(struct net_device *dev);
static int 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);
+static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
+ unsigned char *mac_addr);
static int lec_arp_remove(struct lec_priv *priv,
- struct lec_arp_table *to_remove);
+ 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 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,
- u8 **tlvs, u32 *sizeoftlvs);
-static int lane2_associate_req (struct net_device *dev, u8 *lan_dst,
- u8 *tlvs, u32 sizeoftlvs);
+ u8 **tlvs, u32 *sizeoftlvs);
+static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
+ 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, 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,
+static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
unsigned char *mac_to_find,
int is_rdesc,
struct lec_arp_table **ret_entry);
unsigned long tran_id);
static void lec_vcc_added(struct lec_priv *priv, 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 */
- NULL /* associate indicator, spec 3.1.5 */
+ lane2_resolve, /* resolve, spec 3.1.3 */
+ lane2_associate_req, /* associate_req, spec 3.1.4 */
+ NULL /* associate indicator, spec 3.1.5 */
};
-static unsigned char bus_mac[ETH_ALEN] = {0xff,0xff,0xff,0xff,0xff,0xff};
+static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
/* Device structures */
static struct net_device *dev_lec[MAX_LEC_ITF];
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
{
- struct ethhdr *eth;
- char *buff;
- struct lec_priv *priv;
-
- /* Check if this is a BPDU. If so, ask zeppelin to send
- * LE_TOPOLOGY_REQUEST with the same value of Topology Change bit
- * as the Config BPDU has */
- eth = (struct ethhdr *)skb->data;
- buff = skb->data + skb->dev->hard_header_len;
- if (*buff++ == 0x42 && *buff++ == 0x42 && *buff++ == 0x03) {
+ struct ethhdr *eth;
+ char *buff;
+ struct lec_priv *priv;
+
+ /*
+ * Check if this is a BPDU. If so, ask zeppelin to send
+ * LE_TOPOLOGY_REQUEST with the same value of Topology Change bit
+ * as the Config BPDU has
+ */
+ eth = (struct ethhdr *)skb->data;
+ buff = skb->data + skb->dev->hard_header_len;
+ if (*buff++ == 0x42 && *buff++ == 0x42 && *buff++ == 0x03) {
struct sock *sk;
- struct sk_buff *skb2;
- struct atmlec_msg *mesg;
-
- skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
- if (skb2 == NULL) return;
- skb2->len = sizeof(struct atmlec_msg);
- mesg = (struct atmlec_msg *)skb2->data;
- mesg->type = l_topology_change;
- buff += 4;
- mesg->content.normal.flag = *buff & 0x01; /* 0x01 is topology change */
-
- priv = (struct lec_priv *)dev->priv;
- atm_force_charge(priv->lecd, skb2->truesize);
+ struct sk_buff *skb2;
+ struct atmlec_msg *mesg;
+
+ skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
+ if (skb2 == NULL)
+ return;
+ skb2->len = sizeof(struct atmlec_msg);
+ mesg = (struct atmlec_msg *)skb2->data;
+ mesg->type = l_topology_change;
+ buff += 4;
+ mesg->content.normal.flag = *buff & 0x01; /* 0x01 is topology change */
+
+ priv = (struct lec_priv *)dev->priv;
+ 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);
- }
+ skb_queue_tail(&sk->sk_receive_queue, skb2);
+ sk->sk_data_ready(sk, skb2->len);
+ }
- return;
+ return;
}
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
#ifdef CONFIG_TR
static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc)
{
- struct trh_hdr *trh;
- int riflen, num_rdsc;
-
- trh = (struct trh_hdr *)packet;
- if (trh->daddr[0] & (uint8_t)0x80)
- return bus_mac; /* multicast */
-
- if (trh->saddr[0] & TR_RII) {
- riflen = (ntohs(trh->rcf) & TR_RCF_LEN_MASK) >> 8;
- if ((ntohs(trh->rcf) >> 13) != 0)
- return bus_mac; /* ARE or STE */
- }
- else
- return trh->daddr; /* not source routed */
-
- if (riflen < 6)
- return trh->daddr; /* last hop, source routed */
-
- /* riflen is 6 or more, packet has more than one route descriptor */
- num_rdsc = (riflen/2) - 1;
- 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));
- else {
- memcpy(&rdesc[4], &trh->rseg[1], sizeof(uint16_t));
- rdesc[5] = ((ntohs(trh->rseg[0]) & 0x000f) | (rdesc[5] & 0xf0));
- }
-
- return NULL;
+ struct trh_hdr *trh;
+ int riflen, num_rdsc;
+
+ trh = (struct trh_hdr *)packet;
+ if (trh->daddr[0] & (uint8_t) 0x80)
+ return bus_mac; /* multicast */
+
+ if (trh->saddr[0] & TR_RII) {
+ riflen = (ntohs(trh->rcf) & TR_RCF_LEN_MASK) >> 8;
+ if ((ntohs(trh->rcf) >> 13) != 0)
+ return bus_mac; /* ARE or STE */
+ } else
+ return trh->daddr; /* not source routed */
+
+ if (riflen < 6)
+ return trh->daddr; /* last hop, source routed */
+
+ /* riflen is 6 or more, packet has more than one route descriptor */
+ num_rdsc = (riflen / 2) - 1;
+ 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(__be16));
+ else {
+ memcpy(&rdesc[4], &trh->rseg[1], sizeof(__be16));
+ rdesc[5] = ((ntohs(trh->rseg[0]) & 0x000f) | (rdesc[5] & 0xf0));
+ }
+
+ return NULL;
}
#endif /* CONFIG_TR */
* there is non-reboot way to recover if something goes wrong.
*/
-static int
-lec_open(struct net_device *dev)
+static int lec_open(struct net_device *dev)
{
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
-
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
+
netif_start_queue(dev);
- memset(&priv->stats,0,sizeof(struct net_device_stats));
-
- return 0;
+ memset(&priv->stats, 0, sizeof(struct net_device_stats));
+
+ return 0;
}
static __inline__ void
priv->stats.tx_bytes += skb->len;
}
-static void
-lec_tx_timeout(struct net_device *dev)
+static void lec_tx_timeout(struct net_device *dev)
{
printk(KERN_INFO "%s: tx timeout\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 int 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 lecdatahdr_8023 *lec_h;
- struct atm_vcc *vcc;
+ struct sk_buff *skb2;
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lecdatahdr_8023 *lec_h;
+ struct atm_vcc *vcc;
struct lec_arp_table *entry;
- unsigned char *dst;
+ unsigned char *dst;
int min_frame_size;
#ifdef CONFIG_TR
- unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */
+ unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */
#endif
- int is_rdesc;
+ int is_rdesc;
#if DUMP_PACKETS > 0
- char buf[300];
- int i=0;
+ char buf[300];
+ int i = 0;
#endif /* DUMP_PACKETS >0 */
-
- DPRINTK("lec_start_xmit called\n");
- if (!priv->lecd) {
- printk("%s:No lecd attached\n",dev->name);
- priv->stats.tx_errors++;
- netif_stop_queue(dev);
- return -EUNATCH;
- }
-
- DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
- (long)skb->head, (long)skb->data, (long)skb->tail,
- (long)skb->end);
+
+ DPRINTK("lec_start_xmit called\n");
+ if (!priv->lecd) {
+ printk("%s:No lecd attached\n", dev->name);
+ priv->stats.tx_errors++;
+ netif_stop_queue(dev);
+ return -EUNATCH;
+ }
+
+ DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
+ (long)skb->head, (long)skb->data, (long)skb->tail,
+ (long)skb->end);
#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);
+ if (memcmp(skb->data, bridge_ula_lec, sizeof(bridge_ula_lec)) == 0)
+ lec_handle_bridge(skb, dev);
#endif
- /* Make sure we have room for lec_id */
- if (skb_headroom(skb) < 2) {
+ /* Make sure we have room for lec_id */
+ if (skb_headroom(skb) < 2) {
- DPRINTK("lec_start_xmit: reallocating skb\n");
- skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
- kfree_skb(skb);
- if (skb2 == NULL) return 0;
- skb = skb2;
- }
- skb_push(skb, 2);
+ DPRINTK("lec_start_xmit: reallocating skb\n");
+ skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
+ kfree_skb(skb);
+ if (skb2 == NULL)
+ return 0;
+ skb = skb2;
+ }
+ skb_push(skb, 2);
- /* Put le header to place, works for TokenRing too */
- lec_h = (struct lecdatahdr_8023*)skb->data;
- lec_h->le_header = htons(priv->lecid);
+ /* Put le header to place, works for TokenRing too */
+ lec_h = (struct lecdatahdr_8023 *)skb->data;
+ lec_h->le_header = htons(priv->lecid);
#ifdef CONFIG_TR
- /* Ugly. Use this to realign Token Ring packets for
- * e.g. PCA-200E driver. */
- if (priv->is_trdev) {
- skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
- kfree_skb(skb);
- if (skb2 == NULL) return 0;
- skb = skb2;
- }
+ /*
+ * Ugly. Use this to realign Token Ring packets for
+ * e.g. PCA-200E driver.
+ */
+ if (priv->is_trdev) {
+ skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
+ kfree_skb(skb);
+ if (skb2 == NULL)
+ return 0;
+ skb = skb2;
+ }
#endif
#if DUMP_PACKETS > 0
- printk("%s: send datalen:%ld lecid:%4.4x\n", dev->name,
- skb->len, priv->lecid);
+ 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]);
- }
+ for (i = 0; i < skb->len && i < 99; i++) {
+ sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
+ }
#elif DUMP_PACKETS >= 1
- for(i=0;i<skb->len && i < 30;i++) {
- sprintf(buf+i*3,"%2.2x ", 0xff&skb->data[i]);
- }
+ 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);
+ if (i == skb->len)
+ printk("%s\n", buf);
+ else
+ printk("%s...\n", buf);
#endif /* DUMP_PACKETS > 0 */
- /* Minimum ethernet-frame size */
+ /* Minimum ethernet-frame size */
#ifdef CONFIG_TR
- if (priv->is_trdev)
- min_frame_size = LEC_MINIMUM_8025_SIZE;
+ if (priv->is_trdev)
+ min_frame_size = LEC_MINIMUM_8025_SIZE;
else
#endif
- min_frame_size = LEC_MINIMUM_8023_SIZE;
- if (skb->len < min_frame_size) {
- if ((skb->len + skb_tailroom(skb)) < min_frame_size) {
- skb2 = skb_copy_expand(skb, 0,
- min_frame_size - skb->truesize, GFP_ATOMIC);
- dev_kfree_skb(skb);
- if (skb2 == NULL) {
- priv->stats.tx_dropped++;
- return 0;
- }
- skb = skb2;
- }
+ min_frame_size = LEC_MINIMUM_8023_SIZE;
+ if (skb->len < min_frame_size) {
+ if ((skb->len + skb_tailroom(skb)) < min_frame_size) {
+ skb2 = skb_copy_expand(skb, 0,
+ min_frame_size - skb->truesize,
+ GFP_ATOMIC);
+ dev_kfree_skb(skb);
+ if (skb2 == NULL) {
+ priv->stats.tx_dropped++;
+ return 0;
+ }
+ skb = skb2;
+ }
skb_put(skb, min_frame_size - skb->len);
- }
-
- /* Send to right vcc */
- is_rdesc = 0;
- dst = lec_h->h_dest;
+ }
+
+ /* Send to right vcc */
+ is_rdesc = 0;
+ dst = lec_h->h_dest;
#ifdef CONFIG_TR
- if (priv->is_trdev) {
- dst = get_tr_dst(skb->data+2, rdesc);
- if (dst == NULL) {
- dst = rdesc;
- is_rdesc = 1;
- }
- }
+ if (priv->is_trdev) {
+ dst = get_tr_dst(skb->data + 2, rdesc);
+ if (dst == NULL) {
+ dst = rdesc;
+ is_rdesc = 1;
+ }
+ }
#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);
- 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]);
- 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++;
- dev_kfree_skb(skb);
- }
- return 0;
- }
-
-#if DUMP_PACKETS > 0
- printk("%s:sending to vpi:%d vci:%d\n", dev->name,
- vcc->vpi, vcc->vci);
+ 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);
+ 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]);
+ 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++;
+ dev_kfree_skb(skb);
+ }
+ goto out;
+ }
+#if DUMP_PACKETS > 0
+ printk("%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]);
+
+ 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);
- }
+ }
lec_send(vcc, skb, priv);
netif_wake_queue(dev);
}
+out:
+ if (entry)
+ lec_arp_put(entry);
dev->trans_start = jiffies;
- return 0;
+ return 0;
}
/* The inverse routine to net_open(). */
-static int
-lec_close(struct net_device *dev)
+static int lec_close(struct net_device *dev)
{
- netif_stop_queue(dev);
- return 0;
+ netif_stop_queue(dev);
+ 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)
+static struct net_device_stats *lec_get_stats(struct net_device *dev)
{
- return &((struct lec_priv *)dev->priv)->stats;
+ return &((struct lec_priv *)dev->priv)->stats;
}
-static int
-lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
+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 atmlec_msg *mesg;
- struct lec_arp_table *entry;
- int i;
- char *tmp; /* FIXME */
+ struct net_device *dev = (struct net_device *)vcc->proto_data;
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct atmlec_msg *mesg;
+ struct lec_arp_table *entry;
+ int i;
+ char *tmp; /* FIXME */
atomic_sub(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
- 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);
- switch(mesg->type) {
- case l_set_mac_addr:
- 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++) {
- dev->dev_addr[i] = 0;
- }
- break;
- case l_addr_delete:
- lec_addr_delete(priv, mesg->content.normal.atm_addr,
- mesg->content.normal.flag);
- break;
- case l_topology_change:
- priv->topology_change = mesg->content.normal.flag;
- break;
- case l_flush_complete:
- lec_flush_complete(priv, mesg->content.normal.flag);
- break;
- case l_narp_req: /* LANE2: see 7.1.35 in the lane2 spec */
+ 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);
+ switch (mesg->type) {
+ case l_set_mac_addr:
+ 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++) {
+ dev->dev_addr[i] = 0;
+ }
+ break;
+ case l_addr_delete:
+ lec_addr_delete(priv, mesg->content.normal.atm_addr,
+ mesg->content.normal.flag);
+ break;
+ case l_topology_change:
+ priv->topology_change = mesg->content.normal.flag;
+ break;
+ case l_flush_complete:
+ lec_flush_complete(priv, mesg->content.normal.flag);
+ break;
+ case l_narp_req: /* LANE2: see 7.1.35 in the lane2 spec */
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- entry = lec_arp_find(priv, mesg->content.normal.mac_addr);
- lec_arp_remove(priv, entry);
+ entry = lec_arp_find(priv, mesg->content.normal.mac_addr);
+ lec_arp_remove(priv, entry);
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- if (mesg->content.normal.no_source_le_narp)
- break;
- /* FALL THROUGH */
- case l_arp_update:
- lec_arp_update(priv, mesg->content.normal.mac_addr,
- mesg->content.normal.atm_addr,
- mesg->content.normal.flag,
- mesg->content.normal.targetless_le_arp);
- DPRINTK("lec: 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);
- lane2_associate_ind(dev,
- mesg->content.normal.mac_addr,
- tmp, mesg->sizeoftlvs);
- }
- break;
- case l_config:
- priv->maximum_unknown_frame_count =
- mesg->content.config.maximum_unknown_frame_count;
- priv->max_unknown_frame_time =
- (mesg->content.config.max_unknown_frame_time*HZ);
- priv->max_retry_count =
- mesg->content.config.max_retry_count;
- priv->aging_time = (mesg->content.config.aging_time*HZ);
- priv->forward_delay_time =
- (mesg->content.config.forward_delay_time*HZ);
- priv->arp_response_time =
- (mesg->content.config.arp_response_time*HZ);
- 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 */
+ if (mesg->content.normal.no_source_le_narp)
+ break;
+ /* FALL THROUGH */
+ case l_arp_update:
+ lec_arp_update(priv, mesg->content.normal.mac_addr,
+ mesg->content.normal.atm_addr,
+ mesg->content.normal.flag,
+ mesg->content.normal.targetless_le_arp);
+ DPRINTK("lec: 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);
+ lane2_associate_ind(dev, mesg->content.normal.mac_addr,
+ tmp, mesg->sizeoftlvs);
+ }
+ break;
+ case l_config:
+ priv->maximum_unknown_frame_count =
+ mesg->content.config.maximum_unknown_frame_count;
+ priv->max_unknown_frame_time =
+ (mesg->content.config.max_unknown_frame_time * HZ);
+ priv->max_retry_count = mesg->content.config.max_retry_count;
+ priv->aging_time = (mesg->content.config.aging_time * HZ);
+ priv->forward_delay_time =
+ (mesg->content.config.forward_delay_time * HZ);
+ priv->arp_response_time =
+ (mesg->content.config.arp_response_time * HZ);
+ 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->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);
+ mesg->content.config.mtu);
priv->is_proxy = mesg->content.config.is_proxy;
- break;
- case l_flush_tran_id:
- lec_set_flush_tran_id(priv, mesg->content.normal.atm_addr,
- mesg->content.normal.flag);
- break;
- case l_set_lecid:
- priv->lecid=(unsigned short)(0xffff&mesg->content.normal.flag);
- break;
- case l_should_bridge: {
+ break;
+ case l_flush_tran_id:
+ lec_set_flush_tran_id(priv, mesg->content.normal.atm_addr,
+ mesg->content.normal.flag);
+ break;
+ case l_set_lecid:
+ priv->lecid =
+ (unsigned short)(0xffff & mesg->content.normal.flag);
+ 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;
-
- 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);
+ {
+ 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;
+
+ 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);
+ }
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
- }
- break;
- default:
- printk("%s: Unknown message type %d\n", dev->name, mesg->type);
- dev_kfree_skb(skb);
- return -EINVAL;
- }
- dev_kfree_skb(skb);
- return 0;
+ break;
+ default:
+ printk("%s: Unknown message type %d\n", dev->name, mesg->type);
+ dev_kfree_skb(skb);
+ return -EINVAL;
+ }
+ dev_kfree_skb(skb);
+ return 0;
}
-static void
-lec_atm_close(struct atm_vcc *vcc)
+static void lec_atm_close(struct atm_vcc *vcc)
{
- struct sk_buff *skb;
- struct net_device *dev = (struct net_device *)vcc->proto_data;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct sk_buff *skb;
+ struct net_device *dev = (struct net_device *)vcc->proto_data;
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
- priv->lecd = NULL;
- /* Do something needful? */
+ priv->lecd = NULL;
+ /* Do something needful? */
- netif_stop_queue(dev);
- lec_arp_destroy(priv);
+ netif_stop_queue(dev);
+ lec_arp_destroy(priv);
- if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
+ 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) {
- atm_return(vcc, skb->truesize);
+ dev->name);
+ while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue)) != NULL) {
+ atm_return(vcc, skb->truesize);
dev_kfree_skb(skb);
- }
-
+ }
+
printk("%s: Shut down!\n", dev->name);
- module_put(THIS_MODULE);
+ module_put(THIS_MODULE);
}
static struct atmdev_ops lecdev_ops = {
- .close = lec_atm_close,
- .send = lec_atm_send
+ .close = lec_atm_close,
+ .send = lec_atm_send
};
static struct atm_dev lecatm_dev = {
- .ops = &lecdev_ops,
- .type = "lec",
- .number = 999, /* dummy device number */
- .lock = SPIN_LOCK_UNLOCKED
+ .ops = &lecdev_ops,
+ .type = "lec",
+ .number = 999, /* dummy device number */
+ .lock = SPIN_LOCK_UNLOCKED
};
/*
* LANE2: new argument struct sk_buff *data contains
* the LE_ARP based TLVs introduced in the LANE2 spec
*/
-static int
-send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
- unsigned char *mac_addr, unsigned char *atm_addr,
- struct sk_buff *data)
+static int
+send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
+ unsigned char *mac_addr, unsigned char *atm_addr,
+ struct sk_buff *data)
{
struct sock *sk;
struct sk_buff *skb;
return -1;
skb->len = sizeof(struct atmlec_msg);
mesg = (struct atmlec_msg *)skb->data;
- memset(mesg, 0, sizeof(struct atmlec_msg));
+ memset(mesg, 0, sizeof(struct atmlec_msg));
mesg->type = type;
- if (data != NULL)
- mesg->sizeoftlvs = data->len;
+ if (data != NULL)
+ mesg->sizeoftlvs = data->len;
if (mac_addr)
memcpy(&mesg->content.normal.mac_addr, mac_addr, ETH_ALEN);
- else
- mesg->content.normal.targetless_le_arp = 1;
+ else
+ mesg->content.normal.targetless_le_arp = 1;
if (atm_addr)
memcpy(&mesg->content.normal.atm_addr, atm_addr, ATM_ESA_LEN);
- atm_force_charge(priv->lecd, skb->truesize);
+ atm_force_charge(priv->lecd, skb->truesize);
sk = sk_atm(priv->lecd);
skb_queue_tail(&sk->sk_receive_queue, skb);
- sk->sk_data_ready(sk, skb->len);
+ sk->sk_data_ready(sk, skb->len);
- if (data != NULL) {
- DPRINTK("lec: 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);
- }
+ if (data != NULL) {
+ DPRINTK("lec: 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 0;
+ return 0;
}
/* shamelessly stolen from drivers/net/net_init.c */
static int lec_change_mtu(struct net_device *dev, int new_mtu)
{
- if ((new_mtu < 68) || (new_mtu > 18190))
- return -EINVAL;
- dev->mtu = new_mtu;
- return 0;
+ if ((new_mtu < 68) || (new_mtu > 18190))
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ return 0;
}
static void lec_set_multicast_list(struct net_device *dev)
{
- /* by default, all multicast frames arrive over the bus.
- * eventually support selective multicast service
- */
- return;
+ /*
+ * by default, all multicast frames arrive over the bus.
+ * eventually support selective multicast service
+ */
+ return;
}
-static void
-lec_init(struct net_device *dev)
+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->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;
+ 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 unsigned char lec_ctrl_magic[] = {
- 0xff,
- 0x00,
- 0x01,
- 0x01 };
+ 0xff,
+ 0x00,
+ 0x01,
+ 0x01
+};
#define LEC_DATA_DIRECT_8023 2
#define LEC_DATA_DIRECT_8025 3
static int lec_is_data_direct(struct atm_vcc *vcc)
-{
+{
return ((vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8023) ||
(vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8025));
-}
+}
-static void
-lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
+static void lec_push(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 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];
+ int i = 0;
+ char buf[300];
- printk("%s: lec_push vcc vpi:%d vci:%d\n", dev->name,
- vcc->vpi, vcc->vci);
+ printk("%s: lec_push vcc vpi:%d vci:%d\n", dev->name,
+ vcc->vpi, vcc->vci);
#endif
- if (!skb) {
- DPRINTK("%s: null skb\n",dev->name);
- lec_vcc_close(priv, vcc);
- return;
- }
+ if (!skb) {
+ DPRINTK("%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);
+ 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]);
- }
+ for (i = 0; i < skb->len && i < 99; i++) {
+ sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
+ }
#elif DUMP_PACKETS >= 1
- for(i=0;i<skb->len && i < 30;i++) {
- sprintf(buf+i*3,"%2.2x ", 0xff&skb->data[i]);
- }
+ 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);
+ if (i == skb->len)
+ printk("%s\n", buf);
+ else
+ printk("%s...\n", buf);
#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);
- skb_queue_tail(&sk->sk_receive_queue, skb);
- sk->sk_data_ready(sk, skb->len);
- } else { /* Data frame, queue to protocol handlers */
+ DPRINTK("%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 */
struct lec_arp_table *entry;
- unsigned char *src, *dst;
-
- atm_return(vcc,skb->truesize);
- if (*(uint16_t *)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");
- dev_kfree_skb(skb);
- return;
- }
+ unsigned char *src, *dst;
+
+ atm_return(vcc, skb->truesize);
+ 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");
+ dev_kfree_skb(skb);
+ return;
+ }
#ifdef CONFIG_TR
- if (priv->is_trdev)
- dst = ((struct lecdatahdr_8025 *) skb->data)->h_dest;
- else
+ if (priv->is_trdev)
+ dst = ((struct lecdatahdr_8025 *)skb->data)->h_dest;
+ else
#endif
- dst = ((struct lecdatahdr_8023 *) skb->data)->h_dest;
+ dst = ((struct lecdatahdr_8023 *)skb->data)->h_dest;
- /* If this is a Data Direct VCC, and the VCC does not match
+ /*
+ * If this is a Data Direct VCC, and the VCC does not match
* the LE_ARP cache entry, delete the LE_ARP cache entry.
*/
spin_lock_irqsave(&priv->lec_arp_lock, flags);
if (lec_is_data_direct(vcc)) {
#ifdef CONFIG_TR
if (priv->is_trdev)
- src = ((struct lecdatahdr_8025 *) skb->data)->h_source;
+ src =
+ ((struct lecdatahdr_8025 *)skb->data)->
+ h_source;
else
#endif
- src = ((struct lecdatahdr_8023 *) skb->data)->h_source;
+ src =
+ ((struct lecdatahdr_8023 *)skb->data)->
+ h_source;
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);
- if (!(dst[0]&0x01) && /* Never filter Multi/Broadcast */
- !priv->is_proxy && /* Proxy wants all the packets */
+ if (!(dst[0] & 0x01) && /* Never filter Multi/Broadcast */
+ !priv->is_proxy && /* Proxy wants all the packets */
memcmp(dst, dev->dev_addr, dev->addr_len)) {
- dev_kfree_skb(skb);
- return;
- }
- if (priv->lec_arp_empty_ones) {
- lec_arp_check_empties(priv, vcc, skb);
- }
- skb->dev = dev;
- skb_pull(skb, 2); /* skip lec_id */
+ dev_kfree_skb(skb);
+ return;
+ }
+ 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) skb->protocol = tr_type_trans(skb, dev);
- else
+ if (priv->is_trdev)
+ skb->protocol = tr_type_trans(skb, dev);
+ else
#endif
- skb->protocol = eth_type_trans(skb, dev);
- priv->stats.rx_packets++;
- priv->stats.rx_bytes += skb->len;
- memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
- netif_rx(skb);
- }
+ skb->protocol = eth_type_trans(skb, dev);
+ priv->stats.rx_packets++;
+ priv->stats.rx_bytes += skb->len;
+ memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
+ netif_rx(skb);
+ }
}
-static void
-lec_pop(struct atm_vcc *vcc, struct sk_buff *skb)
+static void lec_pop(struct atm_vcc *vcc, struct sk_buff *skb)
{
struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc);
struct net_device *dev = skb->dev;
}
}
-static int
-lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
+static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
{
struct lec_vcc_priv *vpriv;
- int bytes_left;
- struct atmlec_ioc ioc_data;
-
- /* 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 (ioc_data.dev_num < 0 || ioc_data.dev_num >= MAX_LEC_ITF ||
- !dev_lec[ioc_data.dev_num])
- return -EINVAL;
+ int bytes_left;
+ struct atmlec_ioc ioc_data;
+
+ /* 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 (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)))
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,
- &ioc_data, vcc, vcc->push);
- vcc->proto_data = dev_lec[ioc_data.dev_num];
- vcc->push = lec_push;
- return 0;
+ lec_vcc_added(dev_lec[ioc_data.dev_num]->priv,
+ &ioc_data, vcc, vcc->push);
+ vcc->proto_data = dev_lec[ioc_data.dev_num];
+ vcc->push = lec_push;
+ return 0;
}
-static int
-lec_mcast_attach(struct atm_vcc *vcc, int arg)
+static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
{
- 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));
+ 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));
}
/* Initialize device. */
-static int
-lecd_attach(struct atm_vcc *vcc, int arg)
-{
- int i;
- struct lec_priv *priv;
-
- if (arg<0)
- i = 0;
- else
- i = arg;
+static int lecd_attach(struct atm_vcc *vcc, int arg)
+{
+ int i;
+ struct lec_priv *priv;
+
+ if (arg < 0)
+ i = 0;
+ else
+ i = arg;
#ifdef CONFIG_TR
- if (arg >= MAX_LEC_ITF)
- return -EINVAL;
-#else /* Reserve the top NUM_TR_DEVS for TR */
- if (arg >= (MAX_LEC_ITF-NUM_TR_DEVS))
- return -EINVAL;
+ if (arg >= MAX_LEC_ITF)
+ return -EINVAL;
+#else /* Reserve the top NUM_TR_DEVS for TR */
+ if (arg >= (MAX_LEC_ITF - NUM_TR_DEVS))
+ return -EINVAL;
#endif
- if (!dev_lec[i]) {
- int is_trdev, size;
+ if (!dev_lec[i]) {
+ int is_trdev, size;
- is_trdev = 0;
- if (i >= (MAX_LEC_ITF - NUM_TR_DEVS))
- is_trdev = 1;
+ is_trdev = 0;
+ if (i >= (MAX_LEC_ITF - NUM_TR_DEVS))
+ is_trdev = 1;
- size = sizeof(struct lec_priv);
+ size = sizeof(struct lec_priv);
#ifdef CONFIG_TR
- if (is_trdev)
- dev_lec[i] = alloc_trdev(size);
- else
+ if (is_trdev)
+ dev_lec[i] = alloc_trdev(size);
+ else
#endif
- dev_lec[i] = alloc_etherdev(size);
- if (!dev_lec[i])
- return -ENOMEM;
- 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->is_trdev = is_trdev;
- lec_init(dev_lec[i]);
- } else {
- priv = dev_lec[i]->priv;
- if (priv->lecd)
- return -EADDRINUSE;
- }
- lec_arp_init(priv);
- priv->itfnum = i; /* LANE2 addition */
- priv->lecd = vcc;
- vcc->dev = &lecatm_dev;
- vcc_insert_socket(sk_atm(vcc));
-
- vcc->proto_data = dev_lec[i];
- set_bit(ATM_VF_META,&vcc->flags);
- set_bit(ATM_VF_READY,&vcc->flags);
-
- /* Set default values to these variables */
- priv->maximum_unknown_frame_count = 1;
- priv->max_unknown_frame_time = (1*HZ);
- priv->vcc_timeout_period = (1200*HZ);
- priv->max_retry_count = 1;
- priv->aging_time = (300*HZ);
- priv->forward_delay_time = (15*HZ);
- priv->topology_change = 0;
- priv->arp_response_time = (1*HZ);
- priv->flush_timeout = (4*HZ);
- priv->path_switching_delay = (6*HZ);
-
- if (dev_lec[i]->flags & IFF_UP) {
- netif_start_queue(dev_lec[i]);
- }
- __module_get(THIS_MODULE);
- return i;
+ dev_lec[i] = alloc_etherdev(size);
+ if (!dev_lec[i])
+ return -ENOMEM;
+ 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->is_trdev = is_trdev;
+ lec_init(dev_lec[i]);
+ } else {
+ priv = dev_lec[i]->priv;
+ if (priv->lecd)
+ return -EADDRINUSE;
+ }
+ lec_arp_init(priv);
+ priv->itfnum = i; /* LANE2 addition */
+ priv->lecd = vcc;
+ vcc->dev = &lecatm_dev;
+ vcc_insert_socket(sk_atm(vcc));
+
+ vcc->proto_data = dev_lec[i];
+ set_bit(ATM_VF_META, &vcc->flags);
+ set_bit(ATM_VF_READY, &vcc->flags);
+
+ /* Set default values to these variables */
+ priv->maximum_unknown_frame_count = 1;
+ priv->max_unknown_frame_time = (1 * HZ);
+ priv->vcc_timeout_period = (1200 * HZ);
+ priv->max_retry_count = 1;
+ priv->aging_time = (300 * HZ);
+ priv->forward_delay_time = (15 * HZ);
+ priv->topology_change = 0;
+ priv->arp_response_time = (1 * HZ);
+ priv->flush_timeout = (4 * HZ);
+ priv->path_switching_delay = (6 * HZ);
+
+ 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 char *lec_arp_get_status_string(unsigned char status)
{
static char *lec_arp_status_string[] = {
"ESI_UNKNOWN ",
if (entry->vcc)
seq_printf(seq, "%3d %3d ", entry->vcc->vpi, entry->vcc->vci);
else
- seq_printf(seq, " ");
+ seq_printf(seq, " ");
if (entry->recv_vcc) {
seq_printf(seq, " %3d %3d", entry->recv_vcc->vpi,
entry->recv_vcc->vci);
- }
- seq_putc(seq, '\n');
+ }
+ seq_putc(seq, '\n');
}
-
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;
+ e = tbl->first;
if (e == (void *)1) {
- e = tbl;
+ 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;
}
static void *lec_arp_walk(struct lec_state *state, loff_t *l,
- struct lec_priv *priv)
+ struct lec_priv *priv)
{
void *v = 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;
state->locked = priv;
spin_lock_irqsave(&priv->lec_arp_lock, state->flags);
}
- if (!lec_arp_walk(state, l, priv) &&
- !lec_misc_walk(state, l, priv)) {
+ if (!lec_arp_walk(state, l, priv) && !lec_misc_walk(state, l, priv)) {
spin_unlock_irqrestore(&priv->lec_arp_lock, state->flags);
state->locked = NULL;
/* Partial state reset for the next time we get called */
if (v)
break;
}
- return v;
+ return v;
}
static void *lec_seq_start(struct seq_file *seq, loff_t *pos)
state->locked = NULL;
state->arp_table = 0;
state->misc_table = 0;
- state->entry = (void *)1;
+ state->node = (void *)1;
- return *pos ? lec_get_idx(state, *pos) : (void*)1;
+ return *pos ? lec_get_idx(state, *pos) : (void *)1;
}
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"
- " Status Flags "
- "VPI/VCI Recv VPI/VCI\n";
+ static char lec_banner[] = "Itf MAC ATM destination"
+ " Status Flags "
+ "VPI/VCI Recv VPI/VCI\n";
if (v == (void *)1)
seq_puts(seq, lec_banner);
else {
struct lec_state *state = seq->private;
- struct net_device *dev = state->dev;
+ 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 = {
- .start = lec_seq_start,
- .next = lec_seq_next,
- .stop = lec_seq_stop,
- .show = lec_seq_show,
+ .start = lec_seq_start,
+ .next = lec_seq_next,
+ .stop = lec_seq_stop,
+ .show = lec_seq_show,
};
static int lec_seq_open(struct inode *inode, struct file *file)
}
static struct file_operations lec_seq_fops = {
- .owner = THIS_MODULE,
- .open = lec_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = lec_seq_release,
+ .owner = THIS_MODULE,
+ .open = lec_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = lec_seq_release,
};
#endif
{
struct atm_vcc *vcc = ATM_SD(sock);
int err = 0;
-
+
switch (cmd) {
- case ATMLEC_CTRL:
- case ATMLEC_MCAST:
- case ATMLEC_DATA:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- break;
- default:
- return -ENOIOCTLCMD;
+ case ATMLEC_CTRL:
+ case ATMLEC_MCAST:
+ case ATMLEC_DATA:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ break;
+ default:
+ return -ENOIOCTLCMD;
}
switch (cmd) {
- case ATMLEC_CTRL:
- err = lecd_attach(vcc, (int) arg);
- if (err >= 0)
- sock->state = SS_CONNECTED;
- break;
- case ATMLEC_MCAST:
- err = lec_mcast_attach(vcc, (int) arg);
- break;
- case ATMLEC_DATA:
- err = lec_vcc_attach(vcc, (void __user *) arg);
- break;
+ case ATMLEC_CTRL:
+ err = lecd_attach(vcc, (int)arg);
+ if (err >= 0)
+ sock->state = SS_CONNECTED;
+ break;
+ case ATMLEC_MCAST:
+ err = lec_mcast_attach(vcc, (int)arg);
+ break;
+ case ATMLEC_DATA:
+ err = lec_vcc_attach(vcc, (void __user *)arg);
+ break;
}
return err;
}
static struct atm_ioctl lane_ioctl_ops = {
- .owner = THIS_MODULE,
- .ioctl = lane_ioctl,
+ .owner = THIS_MODULE,
+ .ioctl = lane_ioctl,
};
static int __init lane_module_init(void)
#endif
register_atm_ioctl(&lane_ioctl_ops);
- printk("lec.c: " __DATE__ " " __TIME__ " initialized\n");
- return 0;
+ printk("lec.c: " __DATE__ " " __TIME__ " initialized\n");
+ return 0;
}
static void __exit lane_module_cleanup(void)
{
- int i;
- struct lec_priv *priv;
+ int i;
+ struct lec_priv *priv;
remove_proc_entry("lec", atm_proc_root);
deregister_atm_ioctl(&lane_ioctl_ops);
- for (i = 0; i < MAX_LEC_ITF; i++) {
- if (dev_lec[i] != NULL) {
- priv = (struct lec_priv *)dev_lec[i]->priv;
+ for (i = 0; i < MAX_LEC_ITF; i++) {
+ if (dev_lec[i] != NULL) {
+ priv = (struct lec_priv *)dev_lec[i]->priv;
unregister_netdev(dev_lec[i]);
- free_netdev(dev_lec[i]);
- dev_lec[i] = NULL;
- }
- }
+ free_netdev(dev_lec[i]);
+ dev_lec[i] = NULL;
+ }
+ }
- return;
+ return;
}
module_init(lane_module_init);
* If dst_mac == NULL, targetless LE_ARP will be sent
*/
static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
- u8 **tlvs, u32 *sizeoftlvs)
+ u8 **tlvs, u32 *sizeoftlvs)
{
unsigned long flags;
- struct lec_priv *priv = (struct lec_priv *)dev->priv;
- struct lec_arp_table *table;
- struct sk_buff *skb;
- int retval;
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
+ struct lec_arp_table *table;
+ struct sk_buff *skb;
+ int retval;
- if (force == 0) {
+ if (force == 0) {
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- table = lec_arp_find(priv, dst_mac);
+ table = lec_arp_find(priv, dst_mac);
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- if(table == NULL)
- return -1;
-
- *tlvs = kmalloc(table->sizeoftlvs, GFP_ATOMIC);
- if (*tlvs == NULL)
- return -1;
-
- memcpy(*tlvs, table->tlvs, table->sizeoftlvs);
- *sizeoftlvs = table->sizeoftlvs;
-
- return 0;
- }
+ if (table == NULL)
+ return -1;
+
+ *tlvs = kmemdup(table->tlvs, table->sizeoftlvs, GFP_ATOMIC);
+ if (*tlvs == NULL)
+ return -1;
+
+ *sizeoftlvs = table->sizeoftlvs;
+
+ return 0;
+ }
if (sizeoftlvs == NULL)
retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, NULL);
-
+
else {
skb = alloc_skb(*sizeoftlvs, GFP_ATOMIC);
if (skb == NULL)
memcpy(skb->data, *tlvs, *sizeoftlvs);
retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb);
}
- return retval;
-}
-
+ return retval;
+}
/*
* LANE2: 3.1.4, LE_ASSOCIATE.request
* 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, u8 *lan_dst,
+ u8 *tlvs, u32 sizeoftlvs)
{
- int retval;
- struct sk_buff *skb;
- struct lec_priv *priv = (struct lec_priv*)dev->priv;
-
- if (compare_ether_addr(lan_dst, dev->dev_addr))
- return (0); /* not our mac address */
-
- kfree(priv->tlvs); /* NULL if there was no previous association */
-
- priv->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
- if (priv->tlvs == NULL)
- 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);
- retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
- if (retval != 0)
- printk("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);
+ int retval;
+ struct sk_buff *skb;
+ struct lec_priv *priv = (struct lec_priv *)dev->priv;
+
+ if (compare_ether_addr(lan_dst, dev->dev_addr))
+ return (0); /* not our mac address */
+
+ kfree(priv->tlvs); /* NULL if there was no previous association */
+
+ priv->tlvs = kmemdup(tlvs, sizeoftlvs, GFP_KERNEL);
+ if (priv->tlvs == NULL)
+ return (0);
+ priv->sizeoftlvs = sizeoftlvs;
+
+ skb = alloc_skb(sizeoftlvs, GFP_ATOMIC);
+ if (skb == NULL)
+ return 0;
+ skb->len = sizeoftlvs;
+ memcpy(skb->data, tlvs, sizeoftlvs);
+ retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
+ if (retval != 0)
+ printk("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);
}
/*
* 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, u8 *mac_addr,
+ u8 *tlvs, u32 sizeoftlvs)
{
#if 0
- int i = 0;
+ int i = 0;
#endif
struct lec_priv *priv = (struct lec_priv *)dev->priv;
-#if 0 /* Why have the TLVs in LE_ARP entries since we do not use them? When you
- uncomment this code, make sure the TLVs get freed when entry is killed */
- struct lec_arp_table *entry = lec_arp_find(priv, mac_addr);
+#if 0 /*
+ * Why have the TLVs in LE_ARP entries
+ * since we do not use them? When you
+ * uncomment this code, make sure the
+ * TLVs get freed when entry is killed
+ */
+ struct lec_arp_table *entry = lec_arp_find(priv, mac_addr);
- if (entry == NULL)
- return; /* should not happen */
+ if (entry == NULL)
+ return; /* should not happen */
- kfree(entry->tlvs);
+ kfree(entry->tlvs);
- entry->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
- if (entry->tlvs == NULL)
- return;
-
- entry->sizeoftlvs = sizeoftlvs;
- memcpy(entry->tlvs, tlvs, sizeoftlvs);
+ entry->tlvs = kmemdup(tlvs, sizeoftlvs, GFP_KERNEL);
+ if (entry->tlvs == NULL)
+ return;
+ entry->sizeoftlvs = sizeoftlvs;
#endif
#if 0
- printk("lec.c: lane2_associate_ind()\n");
- printk("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs);
- while (i < sizeoftlvs)
- printk("%02x ", tlvs[i++]);
-
- printk("\n");
+ printk("lec.c: lane2_associate_ind()\n");
+ printk("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs);
+ while (i < sizeoftlvs)
+ printk("%02x ", tlvs[i++]);
+
+ printk("\n");
#endif
- /* tell MPOA about the TLVs we saw */
- if (priv->lane2_ops && priv->lane2_ops->associate_indicator) {
- priv->lane2_ops->associate_indicator(dev, mac_addr,
- tlvs, sizeoftlvs);
- }
- return;
+ /* tell MPOA about the TLVs we saw */
+ if (priv->lane2_ops && priv->lane2_ops->associate_indicator) {
+ priv->lane2_ops->associate_indicator(dev, mac_addr,
+ tlvs, sizeoftlvs);
+ }
+ return;
}
/*
*
* lec_arpc.c was added here when making
* lane client modular. October 1997
- *
*/
#include <linux/types.h>
#include <linux/inetdevice.h>
#include <net/route.h>
-
#if 0
#define DPRINTK(format,args...)
/*
#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
*/
/*
* Initialization of arp-cache
*/
-static void
-lec_arp_init(struct lec_priv *priv)
+static void lec_arp_init(struct lec_priv *priv)
{
- unsigned short i;
+ 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)
+static void lec_arp_clear_vccs(struct lec_arp_table *entry)
{
- if (entry->vcc) {
+ if (entry->vcc) {
struct atm_vcc *vcc = entry->vcc;
struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc);
- struct net_device *dev = (struct net_device*) vcc->proto_data;
+ struct net_device *dev = (struct net_device *)vcc->proto_data;
- vcc->pop = vpriv->old_pop;
+ vcc->pop = vpriv->old_pop;
if (vpriv->xoff)
netif_wake_queue(dev);
kfree(vpriv);
vcc->user_back = NULL;
- vcc->push = entry->old_push;
+ vcc->push = entry->old_push;
vcc_release_async(vcc, -EPIPE);
- vcc = NULL;
- }
- if (entry->recv_vcc) {
- entry->recv_vcc->push = entry->old_recv_push;
+ entry->vcc = NULL;
+ }
+ if (entry->recv_vcc) {
+ entry->recv_vcc->push = entry->old_recv_push;
vcc_release_async(entry->recv_vcc, -EPIPE);
- entry->recv_vcc = NULL;
- }
+ entry->recv_vcc = NULL;
+ }
}
/*
* Insert entry to lec_arp_table
* 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)
+static inline void
+lec_arp_add(struct lec_priv *priv, struct lec_arp_table *entry)
{
- unsigned short place;
- struct lec_arp_table *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;
-
- 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]);
+ struct hlist_head *tmp;
+
+ tmp = &priv->lec_arp_tables[HASH(entry->mac_addr[ETH_ALEN - 1])];
+ hlist_add_head(&entry->next, tmp);
+
+ DPRINTK("LEC_ARP: Added entry:%2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n",
+ 0xff & entry->mac_addr[0], 0xff & entry->mac_addr[1],
+ 0xff & entry->mac_addr[2], 0xff & entry->mac_addr[3],
+ 0xff & entry->mac_addr[4], 0xff & entry->mac_addr[5]);
}
/*
* Remove entry from lec_arp_table
*/
-static int
-lec_arp_remove(struct lec_priv *priv,
- struct lec_arp_table *to_remove)
+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;
-
- 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;
- del_timer(&to_remove->timer);
-
- /* 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) {
- remove_vcc=0;
- break;
- }
- }
- }
- if (remove_vcc)
- lec_arp_clear_vccs(to_remove);
- }
- 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]);
- return 0;
+ struct hlist_node *node;
+ struct lec_arp_table *entry;
+ int i, remove_vcc = 1;
+
+ if (!to_remove) {
+ return -1;
+ }
+
+ 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 (to_remove->status >= ESI_FLUSH_PENDING) {
+ /*
+ * ESI_FLUSH_PENDING, ESI_FORWARD_DIRECT
+ */
+ 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;
+ }
+ }
+ }
+ if (remove_vcc)
+ lec_arp_clear_vccs(to_remove);
+ }
+ 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]);
+ return 0;
}
#if DEBUG_ARP_TABLE
-static char*
-get_status_string(unsigned char st)
+static char *get_status_string(unsigned char st)
{
- switch(st) {
- case ESI_UNKNOWN:
- return "ESI_UNKNOWN";
- case ESI_ARP_PENDING:
- return "ESI_ARP_PENDING";
- case ESI_VC_PENDING:
- return "ESI_VC_PENDING";
- case ESI_FLUSH_PENDING:
- return "ESI_FLUSH_PENDING";
- case ESI_FORWARD_DIRECT:
- return "ESI_FORWARD_DIRECT";
- default:
- return "<UNKNOWN>";
- }
+ switch (st) {
+ case ESI_UNKNOWN:
+ return "ESI_UNKNOWN";
+ case ESI_ARP_PENDING:
+ return "ESI_ARP_PENDING";
+ case ESI_VC_PENDING:
+ return "ESI_VC_PENDING";
+ case ESI_FLUSH_PENDING:
+ return "ESI_FLUSH_PENDING";
+ case ESI_FORWARD_DIRECT:
+ return "ESI_FORWARD_DIRECT";
+ default:
+ return "<UNKNOWN>";
+ }
}
-#endif
-static void
-dump_arp_table(struct lec_priv *priv)
+static void dump_arp_table(struct lec_priv *priv)
{
-#if DEBUG_ARP_TABLE
- int i,j, offset;
- 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);
- 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:");
- for(j=0;j<ATM_ESA_LEN;j++) {
- offset+=sprintf(buf+offset,
- "%2.2x ",
- rulla->atm_addr[j]&0xff);
- }
- offset+=sprintf(buf+offset,
- "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
- rulla->vcc?rulla->vcc->vpi:0,
- rulla->vcc?rulla->vcc->vci:0,
- rulla->recv_vcc?rulla->recv_vcc->vpi:0,
- rulla->recv_vcc?rulla->recv_vcc->vci:0,
- rulla->last_used,
- rulla->timestamp, rulla->no_tries);
- offset+=sprintf(buf+offset,
- "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;
- }
- printk("%s",buf);
- }
- rulla = lec_no_forward;
- if (rulla)
- printk("No forward\n");
- while(rulla) {
- 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:");
- for(j=0;j<ATM_ESA_LEN;j++) {
- offset+=sprintf(buf+offset,"%2.2x ",
- rulla->atm_addr[j]&0xff);
- }
- offset+=sprintf(buf+offset,
- "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
- rulla->vcc?rulla->vcc->vpi:0,
- rulla->vcc?rulla->vcc->vci:0,
- rulla->recv_vcc?rulla->recv_vcc->vpi:0,
- rulla->recv_vcc?rulla->recv_vcc->vci:0,
- rulla->last_used,
- rulla->timestamp, rulla->no_tries);
- offset+=sprintf(buf+offset,
- "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) {
- 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:");
- for(j=0;j<ATM_ESA_LEN;j++) {
- offset+=sprintf(buf+offset,"%2.2x ",
- rulla->atm_addr[j]&0xff);
- }
- offset+=sprintf(buf+offset,
- "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
- rulla->vcc?rulla->vcc->vpi:0,
- rulla->vcc?rulla->vcc->vci:0,
- rulla->recv_vcc?rulla->recv_vcc->vpi:0,
- rulla->recv_vcc?rulla->recv_vcc->vci:0,
- rulla->last_used,
- rulla->timestamp, rulla->no_tries);
- offset+=sprintf(buf+offset,
- "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 = mcast_fwds;
- if (rulla)
- printk("Multicast Forward VCCs\n");
- while(rulla) {
- 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:");
- for(j=0;j<ATM_ESA_LEN;j++) {
- offset+=sprintf(buf+offset,"%2.2x ",
- rulla->atm_addr[j]&0xff);
- }
- offset+=sprintf(buf+offset,
- "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
- rulla->vcc?rulla->vcc->vpi:0,
- rulla->vcc?rulla->vcc->vci:0,
- rulla->recv_vcc?rulla->recv_vcc->vpi:0,
- rulla->recv_vcc?rulla->recv_vcc->vci:0,
- rulla->last_used,
- rulla->timestamp, rulla->no_tries);
- offset+=sprintf(buf+offset,
- "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);
- }
+ struct hlist_node *node;
+ struct lec_arp_table *rulla;
+ char buf[256];
+ int i, j, offset;
+
+ printk("Dump %p:\n", priv);
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ 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:");
+ for (j = 0; j < ETH_ALEN; j++) {
+ offset += sprintf(buf + offset,
+ "%2.2x ",
+ rulla->mac_addr[j] & 0xff);
+ }
+ offset += sprintf(buf + offset, "Atm:");
+ for (j = 0; j < ATM_ESA_LEN; j++) {
+ offset += sprintf(buf + offset,
+ "%2.2x ",
+ rulla->atm_addr[j] & 0xff);
+ }
+ offset += sprintf(buf + offset,
+ "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
+ rulla->vcc ? rulla->vcc->vpi : 0,
+ rulla->vcc ? rulla->vcc->vci : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->
+ vpi : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->
+ vci : 0, rulla->last_used,
+ rulla->timestamp, rulla->no_tries);
+ offset +=
+ sprintf(buf + offset,
+ "Flags:%x, Packets_flooded:%x, Status: %s ",
+ rulla->flags, rulla->packets_flooded,
+ get_status_string(rulla->status));
+ printk("%s\n", buf);
+ }
+ }
+
+ if (!hlist_empty(&priv->lec_no_forward))
+ printk("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:");
+ for (j = 0; j < ATM_ESA_LEN; j++) {
+ offset += sprintf(buf + offset, "%2.2x ",
+ rulla->atm_addr[j] & 0xff);
+ }
+ offset += sprintf(buf + offset,
+ "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
+ rulla->vcc ? rulla->vcc->vpi : 0,
+ rulla->vcc ? rulla->vcc->vci : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vpi : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vci : 0,
+ rulla->last_used,
+ rulla->timestamp, rulla->no_tries);
+ offset += sprintf(buf + offset,
+ "Flags:%x, Packets_flooded:%x, Status: %s ",
+ rulla->flags, rulla->packets_flooded,
+ get_status_string(rulla->status));
+ printk("%s\n", buf);
+ }
+
+ if (!hlist_empty(&priv->lec_arp_empty_ones))
+ printk("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:");
+ for (j = 0; j < ATM_ESA_LEN; j++) {
+ offset += sprintf(buf + offset, "%2.2x ",
+ rulla->atm_addr[j] & 0xff);
+ }
+ offset += sprintf(buf + offset,
+ "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
+ rulla->vcc ? rulla->vcc->vpi : 0,
+ rulla->vcc ? rulla->vcc->vci : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vpi : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vci : 0,
+ rulla->last_used,
+ rulla->timestamp, rulla->no_tries);
+ offset += sprintf(buf + offset,
+ "Flags:%x, Packets_flooded:%x, Status: %s ",
+ rulla->flags, rulla->packets_flooded,
+ get_status_string(rulla->status));
+ printk("%s", buf);
+ }
+
+ if (!hlist_empty(&priv->mcast_fwds))
+ printk("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:");
+ for (j = 0; j < ATM_ESA_LEN; j++) {
+ offset += sprintf(buf + offset, "%2.2x ",
+ rulla->atm_addr[j] & 0xff);
+ }
+ offset += sprintf(buf + offset,
+ "Vcc vpi:%d vci:%d, Recv_vcc vpi:%d vci:%d Last_used:%lx, Timestamp:%lx, No_tries:%d ",
+ rulla->vcc ? rulla->vcc->vpi : 0,
+ rulla->vcc ? rulla->vcc->vci : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vpi : 0,
+ rulla->recv_vcc ? rulla->recv_vcc->vci : 0,
+ rulla->last_used,
+ rulla->timestamp, rulla->no_tries);
+ offset += sprintf(buf + offset,
+ "Flags:%x, Packets_flooded:%x, Status: %s ",
+ rulla->flags, rulla->packets_flooded,
+ get_status_string(rulla->status));
+ printk("%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)
+static void lec_arp_destroy(struct lec_priv *priv)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
- int i;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
+ int i;
+
+ cancel_rearming_delayed_work(&priv->lec_arp_work);
- del_timer_sync(&priv->lec_arp_timer);
-
- /*
- * Remove all entries
- */
+ /*
+ * 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;
- lec_arp_remove(priv, entry);
- kfree(entry);
- }
- }
- entry = priv->lec_arp_empty_ones;
- while(entry) {
- next = entry->next;
- del_timer_sync(&entry->timer);
- lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
- }
- priv->lec_arp_empty_ones = NULL;
- entry = priv->lec_no_forward;
- while(entry) {
- next = entry->next;
- del_timer_sync(&entry->timer);
- lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
- }
- priv->lec_no_forward = NULL;
- entry = priv->mcast_fwds;
- while(entry) {
- next = entry->next;
- /* No timer, LANEv2 7.1.20 and 2.3.5.3 */
- lec_arp_clear_vccs(entry);
- kfree(entry);
- entry = next;
- }
- priv->mcast_fwds = NULL;
- priv->mcast_vcc = NULL;
- memset(priv->lec_arp_tables, 0,
- sizeof(struct lec_arp_table *) * LEC_ARP_TABLE_SIZE);
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ hlist_for_each_entry_safe(entry, node, next, &priv->lec_arp_tables[i], next) {
+ lec_arp_remove(priv, entry);
+ lec_arp_put(entry);
+ }
+ INIT_HLIST_HEAD(&priv->lec_arp_tables[i]);
+ }
+
+ hlist_for_each_entry_safe(entry, node, next, &priv->lec_arp_empty_ones, next) {
+ del_timer_sync(&entry->timer);
+ lec_arp_clear_vccs(entry);
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ 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);
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ 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);
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ INIT_HLIST_HEAD(&priv->mcast_fwds);
+ priv->mcast_vcc = NULL;
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)
+static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
+ unsigned char *mac_addr)
{
- unsigned short place;
- struct lec_arp_table *to_return;
-
- 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]);
-
- 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;
- }
- return NULL;
+ 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);
+
+ 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)
+static struct lec_arp_table *make_entry(struct lec_priv *priv,
+ 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");
- 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;
- to_return->last_used = jiffies;
- to_return->priv = priv;
- skb_queue_head_init(&to_return->tx_wait);
- return to_return;
+ 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");
+ return NULL;
+ }
+ memcpy(to_return->mac_addr, mac_addr, ETH_ALEN);
+ INIT_HLIST_NODE(&to_return->next);
+ init_timer(&to_return->timer);
+ to_return->timer.function = lec_arp_expire_arp;
+ to_return->timer.data = (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;
}
-/*
- *
- * Arp sent timer expired
- *
- */
-static void
-lec_arp_expire_arp(unsigned long data)
+/* Arp sent timer expired */
+static void lec_arp_expire_arp(unsigned long data)
{
- struct lec_arp_table *entry;
-
- entry = (struct lec_arp_table *)data;
-
- DPRINTK("lec_arp_expire_arp\n");
- if (entry->status == ESI_ARP_PENDING) {
- if (entry->no_tries <= entry->priv->max_retry_count) {
- if (entry->is_rdesc)
- send_to_lecd(entry->priv, l_rdesc_arp_xmt, entry->mac_addr, NULL, NULL);
- else
- send_to_lecd(entry->priv, l_arp_xmt, entry->mac_addr, NULL, NULL);
- entry->no_tries++;
- }
- mod_timer(&entry->timer, jiffies + (1*HZ));
- }
+ struct lec_arp_table *entry;
+
+ entry = (struct lec_arp_table *)data;
+
+ DPRINTK("lec_arp_expire_arp\n");
+ if (entry->status == ESI_ARP_PENDING) {
+ if (entry->no_tries <= entry->priv->max_retry_count) {
+ if (entry->is_rdesc)
+ send_to_lecd(entry->priv, l_rdesc_arp_xmt,
+ entry->mac_addr, NULL, NULL);
+ else
+ send_to_lecd(entry->priv, l_arp_xmt,
+ entry->mac_addr, NULL, NULL);
+ entry->no_tries++;
+ }
+ mod_timer(&entry->timer, jiffies + (1 * HZ));
+ }
}
-/*
- *
- * Unknown/unused vcc expire, remove associated entry
- *
- */
-static void
-lec_arp_expire_vcc(unsigned long data)
+/* Unknown/unused vcc expire, remove associated entry */
+static void lec_arp_expire_vcc(unsigned long data)
{
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;
+ struct lec_arp_table *to_remove = (struct lec_arp_table *)data;
+ struct lec_priv *priv = (struct lec_priv *)to_remove->priv;
- del_timer(&to_remove->timer);
+ 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);
+ 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);
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_clear_vccs(to_remove);
+ lec_arp_put(to_remove);
}
/*
* 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;
- 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);
+ 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);
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 &&
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ hlist_for_each_entry_safe(entry, node, next, &priv->lec_arp_tables[i], next) {
+ 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 */
+ 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;
+ lec_arp_put(entry);
} else {
/* Something else */
if ((entry->status == ESI_VC_PENDING ||
- entry->status == ESI_ARP_PENDING)
+ entry->status == ESI_ARP_PENDING)
&& time_after_eq(now,
- entry->timestamp +
- priv->max_unknown_frame_time)) {
+ 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);
+ 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)) {
+ if (entry->status == ESI_FLUSH_PENDING
+ &&
+ time_after_eq(now, entry->timestamp +
+ priv->path_switching_delay)) {
struct sk_buff *skb;
+ struct atm_vcc *vcc = entry->vcc;
+ lec_arp_hold(entry);
+ spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
while ((skb = skb_dequeue(&entry->tx_wait)) != NULL)
- lec_send(entry->vcc, skb, entry->priv);
+ lec_send(vcc, skb, entry->priv);
entry->last_used = jiffies;
- entry->status =
- ESI_FORWARD_DIRECT;
+ entry->status = ESI_FORWARD_DIRECT;
+ lec_arp_put(entry);
+ goto restart;
}
- entry = entry->next;
}
}
}
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, struct lec_arp_table **ret_entry)
+static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
+ unsigned char *mac_to_find, int is_rdesc,
+ struct lec_arp_table **ret_entry)
{
unsigned long flags;
- struct lec_arp_table *entry;
+ struct lec_arp_table *entry;
struct atm_vcc *found;
- if (mac_to_find[0] & 0x01) {
- 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;
- break;
- default:
- break;
- }
- }
+ if (mac_to_find[0] & 0x01) {
+ 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;
+ break;
+ default:
+ break;
+ }
+ }
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- entry = lec_arp_find(priv, mac_to_find);
-
- if (entry) {
- if (entry->status == ESI_FORWARD_DIRECT) {
- /* Connection Ok */
- entry->last_used = jiffies;
- *ret_entry = entry;
- found = entry->vcc;
+ entry = lec_arp_find(priv, mac_to_find);
+
+ if (entry) {
+ 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
+ }
+ /*
+ * 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) {
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
- not been reached, allow the caller to send packet to
- BUS. */
- if (entry->status != ESI_FLUSH_PENDING &&
- entry->packets_flooded<priv->maximum_unknown_frame_count) {
- entry->packets_flooded++;
- DPRINTK("LEC_ARP: Flooding..\n");
- found = priv->mcast_vcc;
+ /*
+ * Data direct VC not yet set up, check to see if the unknown
+ * frame count is greater than the limit. If the limit has
+ * not been reached, allow the caller to send packet to
+ * BUS.
+ */
+ if (entry->status != ESI_FLUSH_PENDING &&
+ entry->packets_flooded <
+ priv->maximum_unknown_frame_count) {
+ entry->packets_flooded++;
+ DPRINTK("LEC_ARP: Flooding..\n");
+ found = priv->mcast_vcc;
goto out;
- }
- /* We got here because entry->status == ESI_FLUSH_PENDING
+ }
+ /*
+ * We got here because entry->status == ESI_FLUSH_PENDING
* or BUS flood limit was reached for an entry which is
* in ESI_ARP_PENDING or ESI_VC_PENDING state.
*/
- *ret_entry = entry;
- DPRINTK("lec: 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");
- if (!entry) {
- found = priv->mcast_vcc;
+ lec_arp_hold(entry);
+ *ret_entry = entry;
+ DPRINTK("lec: 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");
+ if (!entry) {
+ found = priv->mcast_vcc;
goto out;
- }
- lec_arp_add(priv, entry);
- /* We want arp-request(s) to be sent */
- entry->packets_flooded =1;
- entry->status = ESI_ARP_PENDING;
- entry->no_tries = 1;
- entry->last_used = entry->timestamp = jiffies;
- entry->is_rdesc = is_rdesc;
- if (entry->is_rdesc)
- send_to_lecd(priv, l_rdesc_arp_xmt, mac_to_find, NULL, NULL);
- else
- send_to_lecd(priv, l_arp_xmt, mac_to_find, NULL, NULL);
- entry->timer.expires = jiffies + (1*HZ);
- entry->timer.function = lec_arp_expire_arp;
- add_timer(&entry->timer);
- found = priv->mcast_vcc;
- }
+ }
+ lec_arp_add(priv, entry);
+ /* We want arp-request(s) to be sent */
+ entry->packets_flooded = 1;
+ entry->status = ESI_ARP_PENDING;
+ entry->no_tries = 1;
+ entry->last_used = entry->timestamp = jiffies;
+ entry->is_rdesc = is_rdesc;
+ if (entry->is_rdesc)
+ send_to_lecd(priv, l_rdesc_arp_xmt, mac_to_find, NULL,
+ NULL);
+ else
+ send_to_lecd(priv, l_arp_xmt, mac_to_find, NULL, NULL);
+ entry->timer.expires = jiffies + (1 * HZ);
+ entry->timer.function = lec_arp_expire_arp;
+ add_timer(&entry->timer);
+ found = priv->mcast_vcc;
+ }
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
static int
-lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr,
- unsigned long permanent)
+lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr,
+ unsigned long permanent)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
- int i;
+ struct hlist_node *node, *next;
+ struct lec_arp_table *entry;
+ int i;
- DPRINTK("lec_addr_delete\n");
+ DPRINTK("lec_addr_delete\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))) {
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ 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;
- }
- }
+ return 0;
+ }
+ }
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- return -1;
+ return -1;
}
/*
- * 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,
- unsigned int targetless_le_arp)
+ unsigned char *atm_addr, unsigned long remoteflag,
+ unsigned int targetless_le_arp)
{
unsigned long flags;
- struct lec_arp_table *entry, *tmp;
- int i;
+ 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]);
+ 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]);
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- entry = lec_arp_find(priv, mac_addr);
- if (entry == NULL && targetless_le_arp)
- goto out; /* 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;
- 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);
- }
- 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);
- if (!entry)
+ entry = lec_arp_find(priv, mac_addr);
+ if (entry == NULL && targetless_le_arp)
+ goto out; /*
+ * LANE2: ignore targetless LE_ARPs for which
+ * we have no entry in the cache. 7.1.30
+ */
+ 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);
+ 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;
+ 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);
+ if (!entry)
goto out;
- entry->status = ESI_UNKNOWN;
- lec_arp_add(priv, entry);
- /* Temporary, changes before end of function */
- }
- 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) {
- if (entry != tmp &&
- !memcmp(tmp->atm_addr, atm_addr,
- ATM_ESA_LEN)) {
- /* Vcc to this host exists */
- if (tmp->status > ESI_VC_PENDING) {
- /*
- * ESI_FLUSH_PENDING,
- * ESI_FORWARD_DIRECT
- */
- entry->vcc = tmp->vcc;
- entry->old_push=tmp->old_push;
- }
- entry->status=tmp->status;
- break;
- }
- }
- }
- if (remoteflag)
- entry->flags|=LEC_REMOTE_FLAG;
- else
- 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);
- }
- DPRINTK("After update2\n");
- dump_arp_table(priv);
+ entry->status = ESI_UNKNOWN;
+ lec_arp_add(priv, entry);
+ /* Temporary, changes before end of function */
+ }
+ memcpy(entry->atm_addr, atm_addr, ATM_ESA_LEN);
+ del_timer(&entry->timer);
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ 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 */
+ if (tmp->status > ESI_VC_PENDING) {
+ /*
+ * ESI_FLUSH_PENDING,
+ * ESI_FORWARD_DIRECT
+ */
+ entry->vcc = tmp->vcc;
+ entry->old_push = tmp->old_push;
+ }
+ entry->status = tmp->status;
+ break;
+ }
+ }
+ }
+ if (remoteflag)
+ entry->flags |= LEC_REMOTE_FLAG;
+ else
+ 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);
+ }
+ DPRINTK("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,
- struct atm_vcc *vcc,
- void (*old_push)(struct atm_vcc *vcc, struct sk_buff *skb))
+ struct atm_vcc *vcc,
+ void (*old_push) (struct atm_vcc *vcc, struct sk_buff *skb))
{
unsigned long flags;
- struct lec_arp_table *entry;
- int i, found_entry=0;
+ struct hlist_node *node;
+ struct lec_arp_table *entry;
+ int i, found_entry = 0;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- if (ioc_data->receive == 2) {
- /* 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");
+ DPRINTK("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");
+ entry = lec_arp_find(priv, bus_mac);
+ if (!entry) {
+ printk("LEC_ARP: Multicast entry not found!\n");
goto out;
- }
- memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
- entry->recv_vcc = vcc;
- entry->old_recv_push = old_push;
+ }
+ memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
+ entry->recv_vcc = vcc;
+ entry->old_recv_push = old_push;
#endif
- entry = make_entry(priv, bus_mac);
- if (entry == NULL)
+ entry = make_entry(priv, bus_mac);
+ if (entry == NULL)
goto out;
- del_timer(&entry->timer);
- 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;
- 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]);
- entry = make_entry(priv, bus_mac);
- if (entry == NULL)
+ del_timer(&entry->timer);
+ memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
+ entry->recv_vcc = vcc;
+ entry->old_recv_push = old_push;
+ 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]);
+ entry = make_entry(priv, bus_mac);
+ if (entry == NULL)
goto out;
- memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
- memset(entry->mac_addr, 0, ETH_ALEN);
- entry->recv_vcc = vcc;
- entry->old_recv_push = old_push;
- entry->status = ESI_UNKNOWN;
- entry->timer.expires = jiffies + priv->vcc_timeout_period;
- entry->timer.function = lec_arp_expire_vcc;
- add_timer(&entry->timer);
- entry->next = priv->lec_no_forward;
- priv->lec_no_forward = entry;
+ memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
+ memset(entry->mac_addr, 0, ETH_ALEN);
+ entry->recv_vcc = vcc;
+ entry->old_recv_push = old_push;
+ 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);
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]);
- for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
- for (entry = priv->lec_arp_tables[i]; entry; entry=entry->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);
- found_entry=1;
- del_timer(&entry->timer);
- entry->vcc = vcc;
- entry->old_push = old_push;
- if (entry->status == ESI_VC_PENDING) {
- if(priv->maximum_unknown_frame_count
- ==0)
- entry->status =
- ESI_FORWARD_DIRECT;
- else {
- entry->timestamp = jiffies;
- entry->status =
- ESI_FLUSH_PENDING;
+ }
+ 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]);
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ 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);
+ found_entry = 1;
+ del_timer(&entry->timer);
+ entry->vcc = vcc;
+ entry->old_push = old_push;
+ if (entry->status == ESI_VC_PENDING) {
+ if (priv->maximum_unknown_frame_count
+ == 0)
+ entry->status =
+ ESI_FORWARD_DIRECT;
+ else {
+ entry->timestamp = jiffies;
+ entry->status =
+ ESI_FLUSH_PENDING;
#if 0
- send_to_lecd(priv,l_flush_xmt,
- NULL,
- entry->atm_addr,
- NULL);
+ send_to_lecd(priv, l_flush_xmt,
+ NULL,
+ entry->atm_addr,
+ NULL);
#endif
- }
- } else {
- /* They were forming a connection
- to us, and we to them. Our
- ATM address is numerically lower
- than theirs, so we make connection
- we formed into default VCC (8.1.11).
- Connection they made gets torn
- down. This might confuse some
- clients. Can be changed if
- someone reports trouble... */
- ;
- }
- }
- }
- }
- if (found_entry) {
- DPRINTK("After vcc was added\n");
- dump_arp_table(priv);
+ }
+ } else {
+ /*
+ * They were forming a connection
+ * to us, and we to them. Our
+ * ATM address is numerically lower
+ * than theirs, so we make connection
+ * we formed into default VCC (8.1.11).
+ * Connection they made gets torn
+ * down. This might confuse some
+ * clients. Can be changed if
+ * someone reports trouble...
+ */
+ ;
+ }
+ }
+ }
+ }
+ if (found_entry) {
+ DPRINTK("After vcc was added\n");
+ dump_arp_table(priv);
goto out;
- }
- /* Not found, snatch address from first data packet that arrives from
- this vcc */
- entry = make_entry(priv, bus_mac);
- if (!entry)
+ }
+ /*
+ * Not found, snatch address from first data packet that arrives
+ * from this vcc
+ */
+ entry = make_entry(priv, bus_mac);
+ if (!entry)
goto out;
- entry->vcc = vcc;
- entry->old_push = old_push;
- 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;
- 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");
+ entry->vcc = vcc;
+ entry->old_push = old_push;
+ memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN);
+ memset(entry->mac_addr, 0, ETH_ALEN);
+ entry->status = ESI_UNKNOWN;
+ 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");
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)
+static void lec_flush_complete(struct lec_priv *priv, unsigned long tran_id)
{
unsigned long flags;
- struct lec_arp_table *entry;
- int i;
-
- DPRINTK("LEC:lec_flush_complete %lx\n",tran_id);
+ struct hlist_node *node;
+ struct lec_arp_table *entry;
+ int i;
+
+ DPRINTK("LEC:lec_flush_complete %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) {
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&entry->tx_wait)) != NULL)
- lec_send(entry->vcc, skb, entry->priv);
- entry->status = ESI_FORWARD_DIRECT;
- DPRINTK("LEC_ARP: Flushed\n");
- }
- }
- }
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ 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;
+
+ lec_arp_hold(entry);
+ spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
+ while ((skb = skb_dequeue(&entry->tx_wait)) != NULL)
+ lec_send(vcc, skb, entry->priv);
+ entry->last_used = jiffies;
+ entry->status = ESI_FORWARD_DIRECT;
+ lec_arp_put(entry);
+ DPRINTK("LEC_ARP: Flushed\n");
+ goto restart;
+ }
+ }
+ }
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- dump_arp_table(priv);
+ dump_arp_table(priv);
}
static void
lec_set_flush_tran_id(struct lec_priv *priv,
- unsigned char *atm_addr, unsigned long tran_id)
+ unsigned char *atm_addr, unsigned long tran_id)
{
unsigned long flags;
- struct lec_arp_table *entry;
- int i;
+ 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)
- 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);
- }
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++)
+ 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);
+ }
+ }
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
-static int
-lec_mcast_make(struct lec_priv *priv, struct atm_vcc *vcc)
+static int lec_mcast_make(struct lec_priv *priv, struct atm_vcc *vcc)
{
unsigned long flags;
- unsigned char mac_addr[] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- struct lec_arp_table *to_add;
+ unsigned char mac_addr[] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ };
+ struct lec_arp_table *to_add;
struct lec_vcc_priv *vpriv;
int err = 0;
-
+
if (!(vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL)))
return -ENOMEM;
vpriv->xoff = 0;
vpriv->old_pop = vcc->pop;
vcc->user_back = vpriv;
- vcc->pop = lec_pop;
+ vcc->pop = lec_pop;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
- to_add = make_entry(priv, mac_addr);
- if (!to_add) {
+ to_add = make_entry(priv, mac_addr);
+ if (!to_add) {
vcc->pop = vpriv->old_pop;
kfree(vpriv);
- err = -ENOMEM;
+ err = -ENOMEM;
goto out;
- }
- memcpy(to_add->atm_addr, vcc->remote.sas_addr.prv, ATM_ESA_LEN);
- to_add->status = ESI_FORWARD_DIRECT;
- to_add->flags |= LEC_PERMANENT_FLAG;
- to_add->vcc = vcc;
- to_add->old_push = vcc->push;
- vcc->push = lec_push;
- priv->mcast_vcc = vcc;
- lec_arp_add(priv, to_add);
+ }
+ memcpy(to_add->atm_addr, vcc->remote.sas_addr.prv, ATM_ESA_LEN);
+ to_add->status = ESI_FORWARD_DIRECT;
+ to_add->flags |= LEC_PERMANENT_FLAG;
+ to_add->vcc = vcc;
+ to_add->old_push = vcc->push;
+ vcc->push = lec_push;
+ priv->mcast_vcc = vcc;
+ lec_arp_add(priv, to_add);
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
- return err;
+ return err;
}
-static void
-lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc)
+static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc)
{
unsigned long flags;
- struct lec_arp_table *entry, *next;
- int i;
+ 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);
+ dump_arp_table(priv);
- DPRINTK("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;
- if (vcc == entry->vcc) {
- lec_arp_remove(priv, entry);
- kfree(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 */
- 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;
- }
- entry = next;
- }
-
- entry = priv->lec_no_forward;
- priv->lec_no_forward = NULL;
- while (entry != NULL) {
- next = entry->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;
- }
- entry = next;
- }
-
- entry = priv->mcast_fwds;
- priv->mcast_fwds = NULL;
- while (entry != NULL) {
- next = entry->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;
- }
- entry = next;
- }
+
+ for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) {
+ hlist_for_each_entry_safe(entry, node, next, &priv->lec_arp_tables[i], next) {
+ if (vcc == entry->vcc) {
+ lec_arp_remove(priv, entry);
+ lec_arp_put(entry);
+ if (priv->mcast_vcc == vcc) {
+ priv->mcast_vcc = NULL;
+ }
+ }
+ }
+ }
+
+ 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);
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ }
+
+ 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);
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ }
+
+ 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 */
+ hlist_del(&entry->next);
+ lec_arp_put(entry);
+ }
+ }
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
dump_arp_table(priv);
static void
lec_arp_check_empties(struct lec_priv *priv,
- struct atm_vcc *vcc, struct sk_buff *skb)
+ struct atm_vcc *vcc, struct sk_buff *skb)
{
- unsigned long flags;
- struct lec_arp_table *entry, *prev;
- struct lecdatahdr_8023 *hdr = (struct lecdatahdr_8023 *)skb->data;
- unsigned char *src;
+ unsigned long flags;
+ 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
- struct lecdatahdr_8025 *tr_hdr = (struct lecdatahdr_8025 *)skb->data;
+ struct lecdatahdr_8025 *tr_hdr = (struct lecdatahdr_8025 *)skb->data;
- if (priv->is_trdev) src = tr_hdr->h_source;
- else
+ if (priv->is_trdev)
+ src = tr_hdr->h_source;
+ else
#endif
- src = hdr->h_source;
+ 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);
- }
- 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);
+ 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 */
+ if ((tmp = lec_arp_find(priv, src))) {
+ lec_arp_remove(priv, tmp);
+ lec_arp_put(tmp);
+ }
+ hlist_del(&entry->next);
+ lec_arp_add(priv, entry);
+ goto out;
+ }
+ }
+ DPRINTK("LEC_ARP: Arp_check_empties: entry not found!\n");
out:
spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
}
+
MODULE_LICENSE("GPL");
projects / linux-drm-fsl-dcu.git / blobdiff