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Diffstat (limited to 'net/atm/lec.c')
-rw-r--r--net/atm/lec.c144
1 files changed, 11 insertions, 133 deletions
diff --git a/net/atm/lec.c b/net/atm/lec.c
index f1964caa0f83..a7d172105c99 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -26,11 +26,6 @@
#include <linux/spinlock.h>
#include <linux/seq_file.h>
-/* TokenRing if needed */
-#ifdef CONFIG_TR
-#include <linux/trdevice.h>
-#endif
-
/* And atm device */
#include <linux/atmdev.h>
#include <linux/atmlec.h>
@@ -163,50 +158,6 @@ static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
/*
- * Modelled after tr_type_trans
- * All multicast and ARE or STE frames go to BUS.
- * Non source routed frames go by destination address.
- * Last hop source routed frames go by destination address.
- * Not last hop source routed frames go by _next_ route descriptor.
- * Returns pointer to destination MAC address or fills in rdesc
- * and returns NULL.
- */
-#ifdef CONFIG_TR
-static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc)
-{
- struct trh_hdr *trh;
- unsigned 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 */
-
-/*
* Open/initialize the netdevice. This is called (in the current kernel)
* sometime after booting when the 'ifconfig' program is run.
*
@@ -257,9 +208,6 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
struct lec_arp_table *entry;
unsigned char *dst;
int min_frame_size;
-#ifdef CONFIG_TR
- unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */
-#endif
int is_rdesc;
pr_debug("called\n");
@@ -290,24 +238,10 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
}
skb_push(skb, 2);
- /* Put le header to place, works for TokenRing too */
+ /* Put le header to place */
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 NETDEV_TX_OK;
- skb = skb2;
- }
-#endif
-
#if DUMP_PACKETS >= 2
#define MAX_DUMP_SKB 99
#elif DUMP_PACKETS >= 1
@@ -321,12 +255,7 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
#endif /* DUMP_PACKETS >= 1 */
/* Minimum ethernet-frame size */
-#ifdef CONFIG_TR
- if (priv->is_trdev)
- min_frame_size = LEC_MINIMUM_8025_SIZE;
- else
-#endif
- min_frame_size = LEC_MINIMUM_8023_SIZE;
+ 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,
@@ -345,15 +274,6 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
/* 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;
- }
- }
-#endif
entry = NULL;
vcc = lec_arp_resolve(priv, dst, is_rdesc, &entry);
pr_debug("%s:vcc:%p vcc_flags:%lx, entry:%p\n",
@@ -710,12 +630,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
dev_kfree_skb(skb);
return;
}
-#ifdef CONFIG_TR
- 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
@@ -723,16 +638,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
*/
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;
- 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);
@@ -750,12 +656,7 @@ static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
if (!hlist_empty(&priv->lec_arp_empty_ones))
lec_arp_check_empties(priv, vcc, skb);
skb_pull(skb, 2); /* skip lec_id */
-#ifdef CONFIG_TR
- if (priv->is_trdev)
- skb->protocol = tr_type_trans(skb, dev);
- else
-#endif
- skb->protocol = eth_type_trans(skb, dev);
+ skb->protocol = eth_type_trans(skb, dev);
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
@@ -827,27 +728,13 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
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;
-#endif
if (!dev_lec[i]) {
- int is_trdev, size;
-
- is_trdev = 0;
- if (i >= (MAX_LEC_ITF - NUM_TR_DEVS))
- is_trdev = 1;
+ int size;
size = sizeof(struct lec_priv);
-#ifdef CONFIG_TR
- if (is_trdev)
- dev_lec[i] = alloc_trdev(size);
- else
-#endif
- dev_lec[i] = alloc_etherdev(size);
+ dev_lec[i] = alloc_etherdev(size);
if (!dev_lec[i])
return -ENOMEM;
dev_lec[i]->netdev_ops = &lec_netdev_ops;
@@ -858,7 +745,6 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
}
priv = netdev_priv(dev_lec[i]);
- priv->is_trdev = is_trdev;
} else {
priv = netdev_priv(dev_lec[i]);
if (priv->lecd)
@@ -1255,7 +1141,7 @@ static int lane2_associate_req(struct net_device *dev, const u8 *lan_dst,
struct sk_buff *skb;
struct lec_priv *priv = netdev_priv(dev);
- if (compare_ether_addr(lan_dst, dev->dev_addr))
+ if (!ether_addr_equal(lan_dst, dev->dev_addr))
return 0; /* not our mac address */
kfree(priv->tlvs); /* NULL if there was no previous association */
@@ -1662,7 +1548,7 @@ static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
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))
+ if (ether_addr_equal(mac_addr, entry->mac_addr))
return entry;
}
return NULL;
@@ -1849,7 +1735,7 @@ static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
case 1:
return priv->mcast_vcc;
case 2: /* LANE2 wants arp for multicast addresses */
- if (!compare_ether_addr(mac_to_find, bus_mac))
+ if (ether_addr_equal(mac_to_find, bus_mac))
return priv->mcast_vcc;
break;
default:
@@ -2372,15 +2258,7 @@ lec_arp_check_empties(struct lec_priv *priv,
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;
-
- if (priv->is_trdev)
- src = tr_hdr->h_source;
- else
-#endif
- src = hdr->h_source;
+ unsigned char *src = hdr->h_source;
spin_lock_irqsave(&priv->lec_arp_lock, flags);
hlist_for_each_entry_safe(entry, node, next,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.