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-rw-r--r--net/atm/lec.c1407
1 files changed, 715 insertions, 692 deletions
diff --git a/net/atm/lec.c b/net/atm/lec.c
index b4aa489849df..543960c86fa8 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * lec.c: Lan Emulation driver 2 * lec.c: Lan Emulation driver
3 * Marko Kiiskila mkiiskila@yahoo.com
4 * 3 *
4 * Marko Kiiskila <mkiiskila@yahoo.com>
5 */ 5 */
6 6
7#include <linux/kernel.h> 7#include <linux/kernel.h>
@@ -38,7 +38,7 @@
38#include <linux/if_bridge.h> 38#include <linux/if_bridge.h>
39#include "../bridge/br_private.h" 39#include "../bridge/br_private.h"
40 40
41static unsigned char bridge_ula_lec[] = {0x01, 0x80, 0xc2, 0x00, 0x00}; 41static unsigned char bridge_ula_lec[] = { 0x01, 0x80, 0xc2, 0x00, 0x00 };
42#endif 42#endif
43 43
44/* Modular too */ 44/* Modular too */
@@ -55,38 +55,41 @@ static unsigned char bridge_ula_lec[] = {0x01, 0x80, 0xc2, 0x00, 0x00};
55#define DPRINTK(format,args...) 55#define DPRINTK(format,args...)
56#endif 56#endif
57 57
58#define DUMP_PACKETS 0 /* 0 = None, 58#define DUMP_PACKETS 0 /*
59 * 1 = 30 first bytes 59 * 0 = None,
60 * 2 = Whole packet 60 * 1 = 30 first bytes
61 */ 61 * 2 = Whole packet
62 */
62 63
63#define LEC_UNRES_QUE_LEN 8 /* number of tx packets to queue for a 64#define LEC_UNRES_QUE_LEN 8 /*
64 single destination while waiting for SVC */ 65 * number of tx packets to queue for a
66 * single destination while waiting for SVC
67 */
65 68
66static int lec_open(struct net_device *dev); 69static int lec_open(struct net_device *dev);
67static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev); 70static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev);
68static int lec_close(struct net_device *dev); 71static int lec_close(struct net_device *dev);
69static struct net_device_stats *lec_get_stats(struct net_device *dev); 72static struct net_device_stats *lec_get_stats(struct net_device *dev);
70static void lec_init(struct net_device *dev); 73static void lec_init(struct net_device *dev);
71static struct lec_arp_table* lec_arp_find(struct lec_priv *priv, 74static struct lec_arp_table *lec_arp_find(struct lec_priv *priv,
72 unsigned char *mac_addr); 75 unsigned char *mac_addr);
73static int lec_arp_remove(struct lec_priv *priv, 76static int lec_arp_remove(struct lec_priv *priv,
74 struct lec_arp_table *to_remove); 77 struct lec_arp_table *to_remove);
75/* LANE2 functions */ 78/* LANE2 functions */
76static void lane2_associate_ind (struct net_device *dev, u8 *mac_address, 79static void lane2_associate_ind(struct net_device *dev, u8 *mac_address,
77 u8 *tlvs, u32 sizeoftlvs); 80 u8 *tlvs, u32 sizeoftlvs);
78static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force, 81static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
79 u8 **tlvs, u32 *sizeoftlvs); 82 u8 **tlvs, u32 *sizeoftlvs);
80static int lane2_associate_req (struct net_device *dev, u8 *lan_dst, 83static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
81 u8 *tlvs, u32 sizeoftlvs); 84 u8 *tlvs, u32 sizeoftlvs);
82 85
83static int lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr, 86static int lec_addr_delete(struct lec_priv *priv, unsigned char *atm_addr,
84 unsigned long permanent); 87 unsigned long permanent);
85static void lec_arp_check_empties(struct lec_priv *priv, 88static void lec_arp_check_empties(struct lec_priv *priv,
86 struct atm_vcc *vcc, struct sk_buff *skb); 89 struct atm_vcc *vcc, struct sk_buff *skb);
87static void lec_arp_destroy(struct lec_priv *priv); 90static void lec_arp_destroy(struct lec_priv *priv);
88static void lec_arp_init(struct lec_priv *priv); 91static void lec_arp_init(struct lec_priv *priv);
89static struct atm_vcc* lec_arp_resolve(struct lec_priv *priv, 92static struct atm_vcc *lec_arp_resolve(struct lec_priv *priv,
90 unsigned char *mac_to_find, 93 unsigned char *mac_to_find,
91 int is_rdesc, 94 int is_rdesc,
92 struct lec_arp_table **ret_entry); 95 struct lec_arp_table **ret_entry);
@@ -100,16 +103,17 @@ static void lec_set_flush_tran_id(struct lec_priv *priv,
100 unsigned long tran_id); 103 unsigned long tran_id);
101static void lec_vcc_added(struct lec_priv *priv, struct atmlec_ioc *ioc_data, 104static void lec_vcc_added(struct lec_priv *priv, struct atmlec_ioc *ioc_data,
102 struct atm_vcc *vcc, 105 struct atm_vcc *vcc,
103 void (*old_push)(struct atm_vcc *vcc, struct sk_buff *skb)); 106 void (*old_push) (struct atm_vcc *vcc,
107 struct sk_buff *skb));
104static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc); 108static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc);
105 109
106static struct lane2_ops lane2_ops = { 110static struct lane2_ops lane2_ops = {
107 lane2_resolve, /* resolve, spec 3.1.3 */ 111 lane2_resolve, /* resolve, spec 3.1.3 */
108 lane2_associate_req, /* associate_req, spec 3.1.4 */ 112 lane2_associate_req, /* associate_req, spec 3.1.4 */
109 NULL /* associate indicator, spec 3.1.5 */ 113 NULL /* associate indicator, spec 3.1.5 */
110}; 114};
111 115
112static unsigned char bus_mac[ETH_ALEN] = {0xff,0xff,0xff,0xff,0xff,0xff}; 116static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
113 117
114/* Device structures */ 118/* Device structures */
115static struct net_device *dev_lec[MAX_LEC_ITF]; 119static struct net_device *dev_lec[MAX_LEC_ITF];
@@ -117,36 +121,39 @@ static struct net_device *dev_lec[MAX_LEC_ITF];
117#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) 121#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
118static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev) 122static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
119{ 123{
120 struct ethhdr *eth; 124 struct ethhdr *eth;
121 char *buff; 125 char *buff;
122 struct lec_priv *priv; 126 struct lec_priv *priv;
123 127
124 /* Check if this is a BPDU. If so, ask zeppelin to send 128 /*
125 * LE_TOPOLOGY_REQUEST with the same value of Topology Change bit 129 * Check if this is a BPDU. If so, ask zeppelin to send
126 * as the Config BPDU has */ 130 * LE_TOPOLOGY_REQUEST with the same value of Topology Change bit
127 eth = (struct ethhdr *)skb->data; 131 * as the Config BPDU has
128 buff = skb->data + skb->dev->hard_header_len; 132 */
129 if (*buff++ == 0x42 && *buff++ == 0x42 && *buff++ == 0x03) { 133 eth = (struct ethhdr *)skb->data;
134 buff = skb->data + skb->dev->hard_header_len;
135 if (*buff++ == 0x42 && *buff++ == 0x42 && *buff++ == 0x03) {
130 struct sock *sk; 136 struct sock *sk;
131 struct sk_buff *skb2; 137 struct sk_buff *skb2;
132 struct atmlec_msg *mesg; 138 struct atmlec_msg *mesg;
133 139
134 skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC); 140 skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC);
135 if (skb2 == NULL) return; 141 if (skb2 == NULL)
136 skb2->len = sizeof(struct atmlec_msg); 142 return;
137 mesg = (struct atmlec_msg *)skb2->data; 143 skb2->len = sizeof(struct atmlec_msg);
138 mesg->type = l_topology_change; 144 mesg = (struct atmlec_msg *)skb2->data;
139 buff += 4; 145 mesg->type = l_topology_change;
140 mesg->content.normal.flag = *buff & 0x01; /* 0x01 is topology change */ 146 buff += 4;
141 147 mesg->content.normal.flag = *buff & 0x01; /* 0x01 is topology change */
142 priv = (struct lec_priv *)dev->priv; 148
143 atm_force_charge(priv->lecd, skb2->truesize); 149 priv = (struct lec_priv *)dev->priv;
150 atm_force_charge(priv->lecd, skb2->truesize);
144 sk = sk_atm(priv->lecd); 151 sk = sk_atm(priv->lecd);
145 skb_queue_tail(&sk->sk_receive_queue, skb2); 152 skb_queue_tail(&sk->sk_receive_queue, skb2);
146 sk->sk_data_ready(sk, skb2->len); 153 sk->sk_data_ready(sk, skb2->len);
147 } 154 }
148 155
149 return; 156 return;
150} 157}
151#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */ 158#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
152 159
@@ -162,36 +169,35 @@ static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev)
162#ifdef CONFIG_TR 169#ifdef CONFIG_TR
163static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc) 170static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc)
164{ 171{
165 struct trh_hdr *trh; 172 struct trh_hdr *trh;
166 int riflen, num_rdsc; 173 int riflen, num_rdsc;
167 174
168 trh = (struct trh_hdr *)packet; 175 trh = (struct trh_hdr *)packet;
169 if (trh->daddr[0] & (uint8_t)0x80) 176 if (trh->daddr[0] & (uint8_t) 0x80)
170 return bus_mac; /* multicast */ 177 return bus_mac; /* multicast */
171 178
172 if (trh->saddr[0] & TR_RII) { 179 if (trh->saddr[0] & TR_RII) {
173 riflen = (ntohs(trh->rcf) & TR_RCF_LEN_MASK) >> 8; 180 riflen = (ntohs(trh->rcf) & TR_RCF_LEN_MASK) >> 8;
174 if ((ntohs(trh->rcf) >> 13) != 0) 181 if ((ntohs(trh->rcf) >> 13) != 0)
175 return bus_mac; /* ARE or STE */ 182 return bus_mac; /* ARE or STE */
176 } 183 } else
177 else 184 return trh->daddr; /* not source routed */
178 return trh->daddr; /* not source routed */ 185
179 186 if (riflen < 6)
180 if (riflen < 6) 187 return trh->daddr; /* last hop, source routed */
181 return trh->daddr; /* last hop, source routed */ 188
182 189 /* riflen is 6 or more, packet has more than one route descriptor */
183 /* riflen is 6 or more, packet has more than one route descriptor */ 190 num_rdsc = (riflen / 2) - 1;
184 num_rdsc = (riflen/2) - 1; 191 memset(rdesc, 0, ETH_ALEN);
185 memset(rdesc, 0, ETH_ALEN); 192 /* offset 4 comes from LAN destination field in LE control frames */
186 /* offset 4 comes from LAN destination field in LE control frames */ 193 if (trh->rcf & htons((uint16_t) TR_RCF_DIR_BIT))
187 if (trh->rcf & htons((uint16_t)TR_RCF_DIR_BIT)) 194 memcpy(&rdesc[4], &trh->rseg[num_rdsc - 2], sizeof(uint16_t));
188 memcpy(&rdesc[4], &trh->rseg[num_rdsc-2], sizeof(uint16_t)); 195 else {
189 else { 196 memcpy(&rdesc[4], &trh->rseg[1], sizeof(uint16_t));
190 memcpy(&rdesc[4], &trh->rseg[1], sizeof(uint16_t)); 197 rdesc[5] = ((ntohs(trh->rseg[0]) & 0x000f) | (rdesc[5] & 0xf0));
191 rdesc[5] = ((ntohs(trh->rseg[0]) & 0x000f) | (rdesc[5] & 0xf0)); 198 }
192 }
193 199
194 return NULL; 200 return NULL;
195} 201}
196#endif /* CONFIG_TR */ 202#endif /* CONFIG_TR */
197 203
@@ -204,15 +210,14 @@ static unsigned char *get_tr_dst(unsigned char *packet, unsigned char *rdesc)
204 * there is non-reboot way to recover if something goes wrong. 210 * there is non-reboot way to recover if something goes wrong.
205 */ 211 */
206 212
207static int 213static int lec_open(struct net_device *dev)
208lec_open(struct net_device *dev)
209{ 214{
210 struct lec_priv *priv = (struct lec_priv *)dev->priv; 215 struct lec_priv *priv = (struct lec_priv *)dev->priv;
211 216
212 netif_start_queue(dev); 217 netif_start_queue(dev);
213 memset(&priv->stats,0,sizeof(struct net_device_stats)); 218 memset(&priv->stats, 0, sizeof(struct net_device_stats));
214 219
215 return 0; 220 return 0;
216} 221}
217 222
218static __inline__ void 223static __inline__ void
@@ -231,160 +236,166 @@ lec_send(struct atm_vcc *vcc, struct sk_buff *skb, struct lec_priv *priv)
231 priv->stats.tx_bytes += skb->len; 236 priv->stats.tx_bytes += skb->len;
232} 237}
233 238
234static void 239static void lec_tx_timeout(struct net_device *dev)
235lec_tx_timeout(struct net_device *dev)
236{ 240{
237 printk(KERN_INFO "%s: tx timeout\n", dev->name); 241 printk(KERN_INFO "%s: tx timeout\n", dev->name);
238 dev->trans_start = jiffies; 242 dev->trans_start = jiffies;
239 netif_wake_queue(dev); 243 netif_wake_queue(dev);
240} 244}
241 245
242static int 246static int lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
243lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
244{ 247{
245 struct sk_buff *skb2; 248 struct sk_buff *skb2;
246 struct lec_priv *priv = (struct lec_priv *)dev->priv; 249 struct lec_priv *priv = (struct lec_priv *)dev->priv;
247 struct lecdatahdr_8023 *lec_h; 250 struct lecdatahdr_8023 *lec_h;
248 struct atm_vcc *vcc; 251 struct atm_vcc *vcc;
249 struct lec_arp_table *entry; 252 struct lec_arp_table *entry;
250 unsigned char *dst; 253 unsigned char *dst;
251 int min_frame_size; 254 int min_frame_size;
252#ifdef CONFIG_TR 255#ifdef CONFIG_TR
253 unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */ 256 unsigned char rdesc[ETH_ALEN]; /* Token Ring route descriptor */
254#endif 257#endif
255 int is_rdesc; 258 int is_rdesc;
256#if DUMP_PACKETS > 0 259#if DUMP_PACKETS > 0
257 char buf[300]; 260 char buf[300];
258 int i=0; 261 int i = 0;
259#endif /* DUMP_PACKETS >0 */ 262#endif /* DUMP_PACKETS >0 */
260 263
261 DPRINTK("lec_start_xmit called\n"); 264 DPRINTK("lec_start_xmit called\n");
262 if (!priv->lecd) { 265 if (!priv->lecd) {
263 printk("%s:No lecd attached\n",dev->name); 266 printk("%s:No lecd attached\n", dev->name);
264 priv->stats.tx_errors++; 267 priv->stats.tx_errors++;
265 netif_stop_queue(dev); 268 netif_stop_queue(dev);
266 return -EUNATCH; 269 return -EUNATCH;
267 } 270 }
268 271
269 DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n", 272 DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
270 (long)skb->head, (long)skb->data, (long)skb->tail, 273 (long)skb->head, (long)skb->data, (long)skb->tail,
271 (long)skb->end); 274 (long)skb->end);
272#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) 275#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
273 if (memcmp(skb->data, bridge_ula_lec, sizeof(bridge_ula_lec)) == 0) 276 if (memcmp(skb->data, bridge_ula_lec, sizeof(bridge_ula_lec)) == 0)
274 lec_handle_bridge(skb, dev); 277 lec_handle_bridge(skb, dev);
275#endif 278#endif
276 279
277 /* Make sure we have room for lec_id */ 280 /* Make sure we have room for lec_id */
278 if (skb_headroom(skb) < 2) { 281 if (skb_headroom(skb) < 2) {
279 282
280 DPRINTK("lec_start_xmit: reallocating skb\n"); 283 DPRINTK("lec_start_xmit: reallocating skb\n");
281 skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN); 284 skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
282 kfree_skb(skb); 285 kfree_skb(skb);
283 if (skb2 == NULL) return 0; 286 if (skb2 == NULL)
284 skb = skb2; 287 return 0;
285 } 288 skb = skb2;
286 skb_push(skb, 2); 289 }
290 skb_push(skb, 2);
287 291
288 /* Put le header to place, works for TokenRing too */ 292 /* Put le header to place, works for TokenRing too */
289 lec_h = (struct lecdatahdr_8023*)skb->data; 293 lec_h = (struct lecdatahdr_8023 *)skb->data;
290 lec_h->le_header = htons(priv->lecid); 294 lec_h->le_header = htons(priv->lecid);
291 295
292#ifdef CONFIG_TR 296#ifdef CONFIG_TR
293 /* Ugly. Use this to realign Token Ring packets for 297 /*
294 * e.g. PCA-200E driver. */ 298 * Ugly. Use this to realign Token Ring packets for
295 if (priv->is_trdev) { 299 * e.g. PCA-200E driver.
296 skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN); 300 */
297 kfree_skb(skb); 301 if (priv->is_trdev) {
298 if (skb2 == NULL) return 0; 302 skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN);
299 skb = skb2; 303 kfree_skb(skb);
300 } 304 if (skb2 == NULL)
305 return 0;
306 skb = skb2;
307 }
301#endif 308#endif
302 309
303#if DUMP_PACKETS > 0 310#if DUMP_PACKETS > 0
304 printk("%s: send datalen:%ld lecid:%4.4x\n", dev->name, 311 printk("%s: send datalen:%ld lecid:%4.4x\n", dev->name,
305 skb->len, priv->lecid); 312 skb->len, priv->lecid);
306#if DUMP_PACKETS >= 2 313#if DUMP_PACKETS >= 2
307 for(i=0;i<skb->len && i <99;i++) { 314 for (i = 0; i < skb->len && i < 99; i++) {
308 sprintf(buf+i*3,"%2.2x ",0xff&skb->data[i]); 315 sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
309 } 316 }
310#elif DUMP_PACKETS >= 1 317#elif DUMP_PACKETS >= 1
311 for(i=0;i<skb->len && i < 30;i++) { 318 for (i = 0; i < skb->len && i < 30; i++) {
312 sprintf(buf+i*3,"%2.2x ", 0xff&skb->data[i]); 319 sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
313 } 320 }
314#endif /* DUMP_PACKETS >= 1 */ 321#endif /* DUMP_PACKETS >= 1 */
315 if (i==skb->len) 322 if (i == skb->len)
316 printk("%s\n",buf); 323 printk("%s\n", buf);
317 else 324 else
318 printk("%s...\n",buf); 325 printk("%s...\n", buf);
319#endif /* DUMP_PACKETS > 0 */ 326#endif /* DUMP_PACKETS > 0 */
320 327
321 /* Minimum ethernet-frame size */ 328 /* Minimum ethernet-frame size */
322#ifdef CONFIG_TR 329#ifdef CONFIG_TR
323 if (priv->is_trdev) 330 if (priv->is_trdev)
324 min_frame_size = LEC_MINIMUM_8025_SIZE; 331 min_frame_size = LEC_MINIMUM_8025_SIZE;
325 else 332 else
326#endif 333#endif
327 min_frame_size = LEC_MINIMUM_8023_SIZE; 334 min_frame_size = LEC_MINIMUM_8023_SIZE;
328 if (skb->len < min_frame_size) { 335 if (skb->len < min_frame_size) {
329 if ((skb->len + skb_tailroom(skb)) < min_frame_size) { 336 if ((skb->len + skb_tailroom(skb)) < min_frame_size) {
330 skb2 = skb_copy_expand(skb, 0, 337 skb2 = skb_copy_expand(skb, 0,
331 min_frame_size - skb->truesize, GFP_ATOMIC); 338 min_frame_size - skb->truesize,
332 dev_kfree_skb(skb); 339 GFP_ATOMIC);
333 if (skb2 == NULL) { 340 dev_kfree_skb(skb);
334 priv->stats.tx_dropped++; 341 if (skb2 == NULL) {
335 return 0; 342 priv->stats.tx_dropped++;
336 } 343 return 0;
337 skb = skb2; 344 }
338 } 345 skb = skb2;
346 }
339 skb_put(skb, min_frame_size - skb->len); 347 skb_put(skb, min_frame_size - skb->len);
340 } 348 }
341 349
342 /* Send to right vcc */ 350 /* Send to right vcc */
343 is_rdesc = 0; 351 is_rdesc = 0;
344 dst = lec_h->h_dest; 352 dst = lec_h->h_dest;
345#ifdef CONFIG_TR 353#ifdef CONFIG_TR
346 if (priv->is_trdev) { 354 if (priv->is_trdev) {
347 dst = get_tr_dst(skb->data+2, rdesc); 355 dst = get_tr_dst(skb->data + 2, rdesc);
348 if (dst == NULL) { 356 if (dst == NULL) {
349 dst = rdesc; 357 dst = rdesc;
350 is_rdesc = 1; 358 is_rdesc = 1;
351 } 359 }
352 } 360 }
353#endif 361#endif
354 entry = NULL; 362 entry = NULL;
355 vcc = lec_arp_resolve(priv, dst, is_rdesc, &entry); 363 vcc = lec_arp_resolve(priv, dst, is_rdesc, &entry);
356 DPRINTK("%s:vcc:%p vcc_flags:%x, entry:%p\n", dev->name, 364 DPRINTK("%s:vcc:%p vcc_flags:%x, entry:%p\n", dev->name,
357 vcc, vcc?vcc->flags:0, entry); 365 vcc, vcc ? vcc->flags : 0, entry);
358 if (!vcc || !test_bit(ATM_VF_READY,&vcc->flags)) { 366 if (!vcc || !test_bit(ATM_VF_READY, &vcc->flags)) {
359 if (entry && (entry->tx_wait.qlen < LEC_UNRES_QUE_LEN)) { 367 if (entry && (entry->tx_wait.qlen < LEC_UNRES_QUE_LEN)) {
360 DPRINTK("%s:lec_start_xmit: queuing packet, ", dev->name); 368 DPRINTK("%s:lec_start_xmit: queuing packet, ",
361 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n", 369 dev->name);
362 lec_h->h_dest[0], lec_h->h_dest[1], lec_h->h_dest[2], 370 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
363 lec_h->h_dest[3], lec_h->h_dest[4], lec_h->h_dest[5]); 371 lec_h->h_dest[0], lec_h->h_dest[1],
364 skb_queue_tail(&entry->tx_wait, skb); 372 lec_h->h_dest[2], lec_h->h_dest[3],
365 } else { 373 lec_h->h_dest[4], lec_h->h_dest[5]);
366 DPRINTK("%s:lec_start_xmit: tx queue full or no arp entry, dropping, ", dev->name); 374 skb_queue_tail(&entry->tx_wait, skb);
367 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n", 375 } else {
368 lec_h->h_dest[0], lec_h->h_dest[1], lec_h->h_dest[2], 376 DPRINTK
369 lec_h->h_dest[3], lec_h->h_dest[4], lec_h->h_dest[5]); 377 ("%s:lec_start_xmit: tx queue full or no arp entry, dropping, ",
370 priv->stats.tx_dropped++; 378 dev->name);
371 dev_kfree_skb(skb); 379 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
372 } 380 lec_h->h_dest[0], lec_h->h_dest[1],
373 return 0; 381 lec_h->h_dest[2], lec_h->h_dest[3],
374 } 382 lec_h->h_dest[4], lec_h->h_dest[5]);
375 383 priv->stats.tx_dropped++;
376#if DUMP_PACKETS > 0 384 dev_kfree_skb(skb);
377 printk("%s:sending to vpi:%d vci:%d\n", dev->name, 385 }
378 vcc->vpi, vcc->vci); 386 return 0;
387 }
388#if DUMP_PACKETS > 0
389 printk("%s:sending to vpi:%d vci:%d\n", dev->name, vcc->vpi, vcc->vci);
379#endif /* DUMP_PACKETS > 0 */ 390#endif /* DUMP_PACKETS > 0 */
380 391
381 while (entry && (skb2 = skb_dequeue(&entry->tx_wait))) { 392 while (entry && (skb2 = skb_dequeue(&entry->tx_wait))) {
382 DPRINTK("lec.c: emptying tx queue, "); 393 DPRINTK("lec.c: emptying tx queue, ");
383 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n", 394 DPRINTK("MAC address 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
384 lec_h->h_dest[0], lec_h->h_dest[1], lec_h->h_dest[2], 395 lec_h->h_dest[0], lec_h->h_dest[1], lec_h->h_dest[2],
385 lec_h->h_dest[3], lec_h->h_dest[4], lec_h->h_dest[5]); 396 lec_h->h_dest[3], lec_h->h_dest[4], lec_h->h_dest[5]);
386 lec_send(vcc, skb2, priv); 397 lec_send(vcc, skb2, priv);
387 } 398 }
388 399
389 lec_send(vcc, skb, priv); 400 lec_send(vcc, skb, priv);
390 401
@@ -405,209 +416,215 @@ lec_start_xmit(struct sk_buff *skb, struct net_device *dev)
405 } 416 }
406 417
407 dev->trans_start = jiffies; 418 dev->trans_start = jiffies;
408 return 0; 419 return 0;
409} 420}
410 421
411/* The inverse routine to net_open(). */ 422/* The inverse routine to net_open(). */
412static int 423static int lec_close(struct net_device *dev)
413lec_close(struct net_device *dev)
414{ 424{
415 netif_stop_queue(dev); 425 netif_stop_queue(dev);
416 return 0; 426 return 0;
417} 427}
418 428
419/* 429/*
420 * Get the current statistics. 430 * Get the current statistics.
421 * This may be called with the card open or closed. 431 * This may be called with the card open or closed.
422 */ 432 */
423static struct net_device_stats * 433static struct net_device_stats *lec_get_stats(struct net_device *dev)
424lec_get_stats(struct net_device *dev)
425{ 434{
426 return &((struct lec_priv *)dev->priv)->stats; 435 return &((struct lec_priv *)dev->priv)->stats;
427} 436}
428 437
429static int 438static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
430lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
431{ 439{
432 unsigned long flags; 440 unsigned long flags;
433 struct net_device *dev = (struct net_device*)vcc->proto_data; 441 struct net_device *dev = (struct net_device *)vcc->proto_data;
434 struct lec_priv *priv = (struct lec_priv*)dev->priv; 442 struct lec_priv *priv = (struct lec_priv *)dev->priv;
435 struct atmlec_msg *mesg; 443 struct atmlec_msg *mesg;
436 struct lec_arp_table *entry; 444 struct lec_arp_table *entry;
437 int i; 445 int i;
438 char *tmp; /* FIXME */ 446 char *tmp; /* FIXME */
439 447
440 atomic_sub(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc); 448 atomic_sub(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
441 mesg = (struct atmlec_msg *)skb->data; 449 mesg = (struct atmlec_msg *)skb->data;
442 tmp = skb->data; 450 tmp = skb->data;
443 tmp += sizeof(struct atmlec_msg); 451 tmp += sizeof(struct atmlec_msg);
444 DPRINTK("%s: msg from zeppelin:%d\n", dev->name, mesg->type); 452 DPRINTK("%s: msg from zeppelin:%d\n", dev->name, mesg->type);
445 switch(mesg->type) { 453 switch (mesg->type) {
446 case l_set_mac_addr: 454 case l_set_mac_addr:
447 for (i=0;i<6;i++) { 455 for (i = 0; i < 6; i++) {
448 dev->dev_addr[i] = mesg->content.normal.mac_addr[i]; 456 dev->dev_addr[i] = mesg->content.normal.mac_addr[i];
449 } 457 }
450 break; 458 break;
451 case l_del_mac_addr: 459 case l_del_mac_addr:
452 for(i=0;i<6;i++) { 460 for (i = 0; i < 6; i++) {
453 dev->dev_addr[i] = 0; 461 dev->dev_addr[i] = 0;
454 } 462 }
455 break; 463 break;
456 case l_addr_delete: 464 case l_addr_delete:
457 lec_addr_delete(priv, mesg->content.normal.atm_addr, 465 lec_addr_delete(priv, mesg->content.normal.atm_addr,
458 mesg->content.normal.flag); 466 mesg->content.normal.flag);
459 break; 467 break;
460 case l_topology_change: 468 case l_topology_change:
461 priv->topology_change = mesg->content.normal.flag; 469 priv->topology_change = mesg->content.normal.flag;
462 break; 470 break;
463 case l_flush_complete: 471 case l_flush_complete:
464 lec_flush_complete(priv, mesg->content.normal.flag); 472 lec_flush_complete(priv, mesg->content.normal.flag);
465 break; 473 break;
466 case l_narp_req: /* LANE2: see 7.1.35 in the lane2 spec */ 474 case l_narp_req: /* LANE2: see 7.1.35 in the lane2 spec */
467 spin_lock_irqsave(&priv->lec_arp_lock, flags); 475 spin_lock_irqsave(&priv->lec_arp_lock, flags);
468 entry = lec_arp_find(priv, mesg->content.normal.mac_addr); 476 entry = lec_arp_find(priv, mesg->content.normal.mac_addr);
469 lec_arp_remove(priv, entry); 477 lec_arp_remove(priv, entry);
470 spin_unlock_irqrestore(&priv->lec_arp_lock, flags); 478 spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
471 479
472 if (mesg->content.normal.no_source_le_narp) 480 if (mesg->content.normal.no_source_le_narp)
473 break; 481 break;
474 /* FALL THROUGH */ 482 /* FALL THROUGH */
475 case l_arp_update: 483 case l_arp_update:
476 lec_arp_update(priv, mesg->content.normal.mac_addr, 484 lec_arp_update(priv, mesg->content.normal.mac_addr,
477 mesg->content.normal.atm_addr, 485 mesg->content.normal.atm_addr,
478 mesg->content.normal.flag, 486 mesg->content.normal.flag,
479 mesg->content.normal.targetless_le_arp); 487 mesg->content.normal.targetless_le_arp);
480 DPRINTK("lec: in l_arp_update\n"); 488 DPRINTK("lec: in l_arp_update\n");
481 if (mesg->sizeoftlvs != 0) { /* LANE2 3.1.5 */ 489 if (mesg->sizeoftlvs != 0) { /* LANE2 3.1.5 */
482 DPRINTK("lec: LANE2 3.1.5, got tlvs, size %d\n", mesg->sizeoftlvs); 490 DPRINTK("lec: LANE2 3.1.5, got tlvs, size %d\n",
483 lane2_associate_ind(dev, 491 mesg->sizeoftlvs);
484 mesg->content.normal.mac_addr, 492 lane2_associate_ind(dev, mesg->content.normal.mac_addr,
485 tmp, mesg->sizeoftlvs); 493 tmp, mesg->sizeoftlvs);
486 } 494 }
487 break; 495 break;
488 case l_config: 496 case l_config:
489 priv->maximum_unknown_frame_count = 497 priv->maximum_unknown_frame_count =
490 mesg->content.config.maximum_unknown_frame_count; 498 mesg->content.config.maximum_unknown_frame_count;
491 priv->max_unknown_frame_time = 499 priv->max_unknown_frame_time =
492 (mesg->content.config.max_unknown_frame_time*HZ); 500 (mesg->content.config.max_unknown_frame_time * HZ);
493 priv->max_retry_count = 501 priv->max_retry_count = mesg->content.config.max_retry_count;
494 mesg->content.config.max_retry_count; 502 priv->aging_time = (mesg->content.config.aging_time * HZ);
495 priv->aging_time = (mesg->content.config.aging_time*HZ); 503 priv->forward_delay_time =
496 priv->forward_delay_time = 504 (mesg->content.config.forward_delay_time * HZ);
497 (mesg->content.config.forward_delay_time*HZ); 505 priv->arp_response_time =
498 priv->arp_response_time = 506 (mesg->content.config.arp_response_time * HZ);
499 (mesg->content.config.arp_response_time*HZ); 507 priv->flush_timeout = (mesg->content.config.flush_timeout * HZ);
500 priv->flush_timeout = (mesg->content.config.flush_timeout*HZ); 508 priv->path_switching_delay =
501 priv->path_switching_delay = 509 (mesg->content.config.path_switching_delay * HZ);
502 (mesg->content.config.path_switching_delay*HZ); 510 priv->lane_version = mesg->content.config.lane_version; /* LANE2 */
503 priv->lane_version = mesg->content.config.lane_version; /* LANE2 */
504 priv->lane2_ops = NULL; 511 priv->lane2_ops = NULL;
505 if (priv->lane_version > 1) 512 if (priv->lane_version > 1)
506 priv->lane2_ops = &lane2_ops; 513 priv->lane2_ops = &lane2_ops;
507 if (dev->change_mtu(dev, mesg->content.config.mtu)) 514 if (dev->change_mtu(dev, mesg->content.config.mtu))
508 printk("%s: change_mtu to %d failed\n", dev->name, 515 printk("%s: change_mtu to %d failed\n", dev->name,
509 mesg->content.config.mtu); 516 mesg->content.config.mtu);
510 priv->is_proxy = mesg->content.config.is_proxy; 517 priv->is_proxy = mesg->content.config.is_proxy;
511 break; 518 break;
512 case l_flush_tran_id: 519 case l_flush_tran_id:
513 lec_set_flush_tran_id(priv, mesg->content.normal.atm_addr, 520 lec_set_flush_tran_id(priv, mesg->content.normal.atm_addr,
514 mesg->content.normal.flag); 521 mesg->content.normal.flag);
515 break; 522 break;
516 case l_set_lecid: 523 case l_set_lecid:
517 priv->lecid=(unsigned short)(0xffff&mesg->content.normal.flag); 524 priv->lecid =
518 break; 525 (unsigned short)(0xffff & mesg->content.normal.flag);
519 case l_should_bridge: { 526 break;
527 case l_should_bridge:
520#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) 528#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
521 struct net_bridge_fdb_entry *f; 529 {
522 530 struct net_bridge_fdb_entry *f;
523 DPRINTK("%s: bridge zeppelin asks about 0x%02x:%02x:%02x:%02x:%02x:%02x\n", 531
524 dev->name, 532 DPRINTK
525 mesg->content.proxy.mac_addr[0], mesg->content.proxy.mac_addr[1], 533 ("%s: bridge zeppelin asks about 0x%02x:%02x:%02x:%02x:%02x:%02x\n",
526 mesg->content.proxy.mac_addr[2], mesg->content.proxy.mac_addr[3], 534 dev->name, mesg->content.proxy.mac_addr[0],
527 mesg->content.proxy.mac_addr[4], mesg->content.proxy.mac_addr[5]); 535 mesg->content.proxy.mac_addr[1],
528 536 mesg->content.proxy.mac_addr[2],
529 if (br_fdb_get_hook == NULL || dev->br_port == NULL) 537 mesg->content.proxy.mac_addr[3],
530 break; 538 mesg->content.proxy.mac_addr[4],
531 539 mesg->content.proxy.mac_addr[5]);
532 f = br_fdb_get_hook(dev->br_port->br, mesg->content.proxy.mac_addr); 540
533 if (f != NULL && 541 if (br_fdb_get_hook == NULL || dev->br_port == NULL)
534 f->dst->dev != dev && 542 break;
535 f->dst->state == BR_STATE_FORWARDING) { 543
536 /* hit from bridge table, send LE_ARP_RESPONSE */ 544 f = br_fdb_get_hook(dev->br_port->br,
537 struct sk_buff *skb2; 545 mesg->content.proxy.mac_addr);
538 struct sock *sk; 546 if (f != NULL && f->dst->dev != dev
539 547 && f->dst->state == BR_STATE_FORWARDING) {
540 DPRINTK("%s: entry found, responding to zeppelin\n", dev->name); 548 /* hit from bridge table, send LE_ARP_RESPONSE */
541 skb2 = alloc_skb(sizeof(struct atmlec_msg), GFP_ATOMIC); 549 struct sk_buff *skb2;
542 if (skb2 == NULL) { 550 struct sock *sk;
543 br_fdb_put_hook(f); 551
544 break; 552 DPRINTK
545 } 553 ("%s: entry found, responding to zeppelin\n",
546 skb2->len = sizeof(struct atmlec_msg); 554 dev->name);
547 memcpy(skb2->data, mesg, sizeof(struct atmlec_msg)); 555 skb2 =
548 atm_force_charge(priv->lecd, skb2->truesize); 556 alloc_skb(sizeof(struct atmlec_msg),
549 sk = sk_atm(priv->lecd); 557 GFP_ATOMIC);
550 skb_queue_tail(&sk->sk_receive_queue, skb2); 558 if (skb2 == NULL) {
551 sk->sk_data_ready(sk, skb2->len); 559 br_fdb_put_hook(f);
552 } 560 break;
553 if (f != NULL) br_fdb_put_hook(f); 561 }
562 skb2->len = sizeof(struct atmlec_msg);
563 memcpy(skb2->data, mesg,
564 sizeof(struct atmlec_msg));
565 atm_force_charge(priv->lecd, skb2->truesize);
566 sk = sk_atm(priv->lecd);
567 skb_queue_tail(&sk->sk_receive_queue, skb2);
568 sk->sk_data_ready(sk, skb2->len);
569 }
570 if (f != NULL)
571 br_fdb_put_hook(f);
572 }
554#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */ 573#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
555 } 574 break;
556 break; 575 default:
557 default: 576 printk("%s: Unknown message type %d\n", dev->name, mesg->type);
558 printk("%s: Unknown message type %d\n", dev->name, mesg->type); 577 dev_kfree_skb(skb);
559 dev_kfree_skb(skb); 578 return -EINVAL;
560 return -EINVAL; 579 }
561 } 580 dev_kfree_skb(skb);
562 dev_kfree_skb(skb); 581 return 0;
563 return 0;
564} 582}
565 583
566static void 584static void lec_atm_close(struct atm_vcc *vcc)
567lec_atm_close(struct atm_vcc *vcc)
568{ 585{
569 struct sk_buff *skb; 586 struct sk_buff *skb;
570 struct net_device *dev = (struct net_device *)vcc->proto_data; 587 struct net_device *dev = (struct net_device *)vcc->proto_data;
571 struct lec_priv *priv = (struct lec_priv *)dev->priv; 588 struct lec_priv *priv = (struct lec_priv *)dev->priv;
572 589
573 priv->lecd = NULL; 590 priv->lecd = NULL;
574 /* Do something needful? */ 591 /* Do something needful? */
575 592
576 netif_stop_queue(dev); 593 netif_stop_queue(dev);
577 lec_arp_destroy(priv); 594 lec_arp_destroy(priv);
578 595
579 if (skb_peek(&sk_atm(vcc)->sk_receive_queue)) 596 if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
580 printk("%s lec_atm_close: closing with messages pending\n", 597 printk("%s lec_atm_close: closing with messages pending\n",
581 dev->name); 598 dev->name);
582 while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue)) != NULL) { 599 while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue)) != NULL) {
583 atm_return(vcc, skb->truesize); 600 atm_return(vcc, skb->truesize);
584 dev_kfree_skb(skb); 601 dev_kfree_skb(skb);
585 } 602 }
586 603
587 printk("%s: Shut down!\n", dev->name); 604 printk("%s: Shut down!\n", dev->name);
588 module_put(THIS_MODULE); 605 module_put(THIS_MODULE);
589} 606}
590 607
591static struct atmdev_ops lecdev_ops = { 608static struct atmdev_ops lecdev_ops = {
592 .close = lec_atm_close, 609 .close = lec_atm_close,
593 .send = lec_atm_send 610 .send = lec_atm_send
594}; 611};
595 612
596static struct atm_dev lecatm_dev = { 613static struct atm_dev lecatm_dev = {
597 .ops = &lecdev_ops, 614 .ops = &lecdev_ops,
598 .type = "lec", 615 .type = "lec",
599 .number = 999, /* dummy device number */ 616 .number = 999, /* dummy device number */
600 .lock = SPIN_LOCK_UNLOCKED 617 .lock = SPIN_LOCK_UNLOCKED
601}; 618};
602 619
603/* 620/*
604 * LANE2: new argument struct sk_buff *data contains 621 * LANE2: new argument struct sk_buff *data contains
605 * the LE_ARP based TLVs introduced in the LANE2 spec 622 * the LE_ARP based TLVs introduced in the LANE2 spec
606 */ 623 */
607static int 624static int
608send_to_lecd(struct lec_priv *priv, atmlec_msg_type type, 625send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
609 unsigned char *mac_addr, unsigned char *atm_addr, 626 unsigned char *mac_addr, unsigned char *atm_addr,
610 struct sk_buff *data) 627 struct sk_buff *data)
611{ 628{
612 struct sock *sk; 629 struct sock *sk;
613 struct sk_buff *skb; 630 struct sk_buff *skb;
@@ -621,154 +638,160 @@ send_to_lecd(struct lec_priv *priv, atmlec_msg_type type,
621 return -1; 638 return -1;
622 skb->len = sizeof(struct atmlec_msg); 639 skb->len = sizeof(struct atmlec_msg);
623 mesg = (struct atmlec_msg *)skb->data; 640 mesg = (struct atmlec_msg *)skb->data;
624 memset(mesg, 0, sizeof(struct atmlec_msg)); 641 memset(mesg, 0, sizeof(struct atmlec_msg));
625 mesg->type = type; 642 mesg->type = type;
626 if (data != NULL) 643 if (data != NULL)
627 mesg->sizeoftlvs = data->len; 644 mesg->sizeoftlvs = data->len;
628 if (mac_addr) 645 if (mac_addr)
629 memcpy(&mesg->content.normal.mac_addr, mac_addr, ETH_ALEN); 646 memcpy(&mesg->content.normal.mac_addr, mac_addr, ETH_ALEN);
630 else 647 else
631 mesg->content.normal.targetless_le_arp = 1; 648 mesg->content.normal.targetless_le_arp = 1;
632 if (atm_addr) 649 if (atm_addr)
633 memcpy(&mesg->content.normal.atm_addr, atm_addr, ATM_ESA_LEN); 650 memcpy(&mesg->content.normal.atm_addr, atm_addr, ATM_ESA_LEN);
634 651
635 atm_force_charge(priv->lecd, skb->truesize); 652 atm_force_charge(priv->lecd, skb->truesize);
636 sk = sk_atm(priv->lecd); 653 sk = sk_atm(priv->lecd);
637 skb_queue_tail(&sk->sk_receive_queue, skb); 654 skb_queue_tail(&sk->sk_receive_queue, skb);
638 sk->sk_data_ready(sk, skb->len); 655 sk->sk_data_ready(sk, skb->len);
639 656
640 if (data != NULL) { 657 if (data != NULL) {
641 DPRINTK("lec: about to send %d bytes of data\n", data->len); 658 DPRINTK("lec: about to send %d bytes of data\n", data->len);
642 atm_force_charge(priv->lecd, data->truesize); 659 atm_force_charge(priv->lecd, data->truesize);
643 skb_queue_tail(&sk->sk_receive_queue, data); 660 skb_queue_tail(&sk->sk_receive_queue, data);
644 sk->sk_data_ready(sk, skb->len); 661 sk->sk_data_ready(sk, skb->len);
645 } 662 }
646 663
647 return 0; 664 return 0;
648} 665}
649 666
650/* shamelessly stolen from drivers/net/net_init.c */ 667/* shamelessly stolen from drivers/net/net_init.c */
651static int lec_change_mtu(struct net_device *dev, int new_mtu) 668static int lec_change_mtu(struct net_device *dev, int new_mtu)
652{ 669{
653 if ((new_mtu < 68) || (new_mtu > 18190)) 670 if ((new_mtu < 68) || (new_mtu > 18190))
654 return -EINVAL; 671 return -EINVAL;
655 dev->mtu = new_mtu; 672 dev->mtu = new_mtu;
656 return 0; 673 return 0;
657} 674}
658 675
659static void lec_set_multicast_list(struct net_device *dev) 676static void lec_set_multicast_list(struct net_device *dev)
660{ 677{
661 /* by default, all multicast frames arrive over the bus. 678 /*
662 * eventually support selective multicast service 679 * by default, all multicast frames arrive over the bus.
663 */ 680 * eventually support selective multicast service
664 return; 681 */
682 return;
665} 683}
666 684
667static void 685static void lec_init(struct net_device *dev)
668lec_init(struct net_device *dev)
669{ 686{
670 dev->change_mtu = lec_change_mtu; 687 dev->change_mtu = lec_change_mtu;
671 dev->open = lec_open; 688 dev->open = lec_open;
672 dev->stop = lec_close; 689 dev->stop = lec_close;
673 dev->hard_start_xmit = lec_start_xmit; 690 dev->hard_start_xmit = lec_start_xmit;
674 dev->tx_timeout = lec_tx_timeout; 691 dev->tx_timeout = lec_tx_timeout;
675 692
676 dev->get_stats = lec_get_stats; 693 dev->get_stats = lec_get_stats;
677 dev->set_multicast_list = lec_set_multicast_list; 694 dev->set_multicast_list = lec_set_multicast_list;
678 dev->do_ioctl = NULL; 695 dev->do_ioctl = NULL;
679 printk("%s: Initialized!\n",dev->name); 696 printk("%s: Initialized!\n", dev->name);
680 return; 697 return;
681} 698}
682 699
683static unsigned char lec_ctrl_magic[] = { 700static unsigned char lec_ctrl_magic[] = {
684 0xff, 701 0xff,
685 0x00, 702 0x00,
686 0x01, 703 0x01,
687 0x01 }; 704 0x01
705};
688 706
689#define LEC_DATA_DIRECT_8023 2 707#define LEC_DATA_DIRECT_8023 2
690#define LEC_DATA_DIRECT_8025 3 708#define LEC_DATA_DIRECT_8025 3
691 709
692static int lec_is_data_direct(struct atm_vcc *vcc) 710static int lec_is_data_direct(struct atm_vcc *vcc)
693{ 711{
694 return ((vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8023) || 712 return ((vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8023) ||
695 (vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8025)); 713 (vcc->sap.blli[0].l3.tr9577.snap[4] == LEC_DATA_DIRECT_8025));
696} 714}
697 715
698static void 716static void lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
699lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
700{ 717{
701 unsigned long flags; 718 unsigned long flags;
702 struct net_device *dev = (struct net_device *)vcc->proto_data; 719 struct net_device *dev = (struct net_device *)vcc->proto_data;
703 struct lec_priv *priv = (struct lec_priv *)dev->priv; 720 struct lec_priv *priv = (struct lec_priv *)dev->priv;
704 721
705#if DUMP_PACKETS >0 722#if DUMP_PACKETS >0
706 int i=0; 723 int i = 0;
707 char buf[300]; 724 char buf[300];
708 725
709 printk("%s: lec_push vcc vpi:%d vci:%d\n", dev->name, 726 printk("%s: lec_push vcc vpi:%d vci:%d\n", dev->name,
710 vcc->vpi, vcc->vci); 727 vcc->vpi, vcc->vci);
711#endif 728#endif
712 if (!skb) { 729 if (!skb) {
713 DPRINTK("%s: null skb\n",dev->name); 730 DPRINTK("%s: null skb\n", dev->name);
714 lec_vcc_close(priv, vcc); 731 lec_vcc_close(priv, vcc);
715 return; 732 return;
716 } 733 }
717#if DUMP_PACKETS > 0 734#if DUMP_PACKETS > 0
718 printk("%s: rcv datalen:%ld lecid:%4.4x\n", dev->name, 735 printk("%s: rcv datalen:%ld lecid:%4.4x\n", dev->name,
719 skb->len, priv->lecid); 736 skb->len, priv->lecid);
720#if DUMP_PACKETS >= 2 737#if DUMP_PACKETS >= 2
721 for(i=0;i<skb->len && i <99;i++) { 738 for (i = 0; i < skb->len && i < 99; i++) {
722 sprintf(buf+i*3,"%2.2x ",0xff&skb->data[i]); 739 sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
723 } 740 }
724#elif DUMP_PACKETS >= 1 741#elif DUMP_PACKETS >= 1
725 for(i=0;i<skb->len && i < 30;i++) { 742 for (i = 0; i < skb->len && i < 30; i++) {
726 sprintf(buf+i*3,"%2.2x ", 0xff&skb->data[i]); 743 sprintf(buf + i * 3, "%2.2x ", 0xff & skb->data[i]);
727 } 744 }
728#endif /* DUMP_PACKETS >= 1 */ 745#endif /* DUMP_PACKETS >= 1 */
729 if (i==skb->len) 746 if (i == skb->len)
730 printk("%s\n",buf); 747 printk("%s\n", buf);
731 else 748 else
732 printk("%s...\n",buf); 749 printk("%s...\n", buf);
733#endif /* DUMP_PACKETS > 0 */ 750#endif /* DUMP_PACKETS > 0 */
734 if (memcmp(skb->data, lec_ctrl_magic, 4) ==0) { /* Control frame, to daemon*/ 751 if (memcmp(skb->data, lec_ctrl_magic, 4) == 0) { /* Control frame, to daemon */
735 struct sock *sk = sk_atm(vcc); 752 struct sock *sk = sk_atm(vcc);
736 753
737 DPRINTK("%s: To daemon\n",dev->name); 754 DPRINTK("%s: To daemon\n", dev->name);
738 skb_queue_tail(&sk->sk_receive_queue, skb); 755 skb_queue_tail(&sk->sk_receive_queue, skb);
739 sk->sk_data_ready(sk, skb->len); 756 sk->sk_data_ready(sk, skb->len);
740 } else { /* Data frame, queue to protocol handlers */ 757 } else { /* Data frame, queue to protocol handlers */
741 struct lec_arp_table *entry; 758 struct lec_arp_table *entry;
742 unsigned char *src, *dst; 759 unsigned char *src, *dst;
743 760
744 atm_return(vcc,skb->truesize); 761 atm_return(vcc, skb->truesize);
745 if (*(uint16_t *)skb->data == htons(priv->lecid) || 762 if (*(uint16_t *) skb->data == htons(priv->lecid) ||
746 !priv->lecd || 763 !priv->lecd || !(dev->flags & IFF_UP)) {
747 !(dev->flags & IFF_UP)) { 764 /*
748 /* Probably looping back, or if lecd is missing, 765 * Probably looping back, or if lecd is missing,
749 lecd has gone down */ 766 * lecd has gone down
750 DPRINTK("Ignoring frame...\n"); 767 */
751 dev_kfree_skb(skb); 768 DPRINTK("Ignoring frame...\n");
752 return; 769 dev_kfree_skb(skb);
753 } 770 return;
771 }
754#ifdef CONFIG_TR 772#ifdef CONFIG_TR
755 if (priv->is_trdev) 773 if (priv->is_trdev)
756 dst = ((struct lecdatahdr_8025 *) skb->data)->h_dest; 774 dst = ((struct lecdatahdr_8025 *)skb->data)->h_dest;
757 else 775 else
758#endif 776#endif
759 dst = ((struct lecdatahdr_8023 *) skb->data)->h_dest; 777 dst = ((struct lecdatahdr_8023 *)skb->data)->h_dest;
760 778
761 /* If this is a Data Direct VCC, and the VCC does not match 779 /*
780 * If this is a Data Direct VCC, and the VCC does not match
762 * the LE_ARP cache entry, delete the LE_ARP cache entry. 781 * the LE_ARP cache entry, delete the LE_ARP cache entry.
763 */ 782 */
764 spin_lock_irqsave(&priv->lec_arp_lock, flags); 783 spin_lock_irqsave(&priv->lec_arp_lock, flags);
765 if (lec_is_data_direct(vcc)) { 784 if (lec_is_data_direct(vcc)) {
766#ifdef CONFIG_TR 785#ifdef CONFIG_TR
767 if (priv->is_trdev) 786 if (priv->is_trdev)
768 src = ((struct lecdatahdr_8025 *) skb->data)->h_source; 787 src =
788 ((struct lecdatahdr_8025 *)skb->data)->
789 h_source;
769 else 790 else
770#endif 791#endif
771 src = ((struct lecdatahdr_8023 *) skb->data)->h_source; 792 src =
793 ((struct lecdatahdr_8023 *)skb->data)->
794 h_source;
772 entry = lec_arp_find(priv, src); 795 entry = lec_arp_find(priv, src);
773 if (entry && entry->vcc != vcc) { 796 if (entry && entry->vcc != vcc) {
774 lec_arp_remove(priv, entry); 797 lec_arp_remove(priv, entry);
@@ -777,31 +800,31 @@ lec_push(struct atm_vcc *vcc, struct sk_buff *skb)
777 } 800 }
778 spin_unlock_irqrestore(&priv->lec_arp_lock, flags); 801 spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
779 802
780 if (!(dst[0]&0x01) && /* Never filter Multi/Broadcast */ 803 if (!(dst[0] & 0x01) && /* Never filter Multi/Broadcast */
781 !priv->is_proxy && /* Proxy wants all the packets */ 804 !priv->is_proxy && /* Proxy wants all the packets */
782 memcmp(dst, dev->dev_addr, dev->addr_len)) { 805 memcmp(dst, dev->dev_addr, dev->addr_len)) {
783 dev_kfree_skb(skb); 806 dev_kfree_skb(skb);
784 return; 807 return;
785 } 808 }
786 if (priv->lec_arp_empty_ones) { 809 if (priv->lec_arp_empty_ones) {
787 lec_arp_check_empties(priv, vcc, skb); 810 lec_arp_check_empties(priv, vcc, skb);
788 } 811 }
789 skb->dev = dev; 812 skb->dev = dev;
790 skb_pull(skb, 2); /* skip lec_id */ 813 skb_pull(skb, 2); /* skip lec_id */
791#ifdef CONFIG_TR 814#ifdef CONFIG_TR
792 if (priv->is_trdev) skb->protocol = tr_type_trans(skb, dev); 815 if (priv->is_trdev)
793 else 816 skb->protocol = tr_type_trans(skb, dev);
817 else
794#endif 818#endif
795 skb->protocol = eth_type_trans(skb, dev); 819 skb->protocol = eth_type_trans(skb, dev);
796 priv->stats.rx_packets++; 820 priv->stats.rx_packets++;
797 priv->stats.rx_bytes += skb->len; 821 priv->stats.rx_bytes += skb->len;
798 memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data)); 822 memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
799 netif_rx(skb); 823 netif_rx(skb);
800 } 824 }
801} 825}
802 826
803static void 827static void lec_pop(struct atm_vcc *vcc, struct sk_buff *skb)
804lec_pop(struct atm_vcc *vcc, struct sk_buff *skb)
805{ 828{
806 struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc); 829 struct lec_vcc_priv *vpriv = LEC_VCC_PRIV(vcc);
807 struct net_device *dev = skb->dev; 830 struct net_device *dev = skb->dev;
@@ -820,123 +843,121 @@ lec_pop(struct atm_vcc *vcc, struct sk_buff *skb)
820 } 843 }
821} 844}
822 845
823static int 846static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
824lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
825{ 847{
826 struct lec_vcc_priv *vpriv; 848 struct lec_vcc_priv *vpriv;
827 int bytes_left; 849 int bytes_left;
828 struct atmlec_ioc ioc_data; 850 struct atmlec_ioc ioc_data;
829 851
830 /* Lecd must be up in this case */ 852 /* Lecd must be up in this case */
831 bytes_left = copy_from_user(&ioc_data, arg, sizeof(struct atmlec_ioc)); 853 bytes_left = copy_from_user(&ioc_data, arg, sizeof(struct atmlec_ioc));
832 if (bytes_left != 0) { 854 if (bytes_left != 0) {
833 printk("lec: lec_vcc_attach, copy from user failed for %d bytes\n", 855 printk
834 bytes_left); 856 ("lec: lec_vcc_attach, copy from user failed for %d bytes\n",
835 } 857 bytes_left);
836 if (ioc_data.dev_num < 0 || ioc_data.dev_num >= MAX_LEC_ITF || 858 }
837 !dev_lec[ioc_data.dev_num]) 859 if (ioc_data.dev_num < 0 || ioc_data.dev_num >= MAX_LEC_ITF ||
838 return -EINVAL; 860 !dev_lec[ioc_data.dev_num])
861 return -EINVAL;
839 if (!(vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL))) 862 if (!(vpriv = kmalloc(sizeof(struct lec_vcc_priv), GFP_KERNEL)))
840 return -ENOMEM; 863 return -ENOMEM;
841 vpriv->xoff = 0; 864 vpriv->xoff = 0;
842 vpriv->old_pop = vcc->pop; 865 vpriv->old_pop = vcc->pop;
843 vcc->user_back = vpriv; 866 vcc->user_back = vpriv;
844 vcc->pop = lec_pop; 867 vcc->pop = lec_pop;
845 lec_vcc_added(dev_lec[ioc_data.dev_num]->priv, 868 lec_vcc_added(dev_lec[ioc_data.dev_num]->priv,
846 &ioc_data, vcc, vcc->push); 869 &ioc_data, vcc, vcc->push);
847 vcc->proto_data = dev_lec[ioc_data.dev_num]; 870 vcc->proto_data = dev_lec[ioc_data.dev_num];
848 vcc->push = lec_push; 871 vcc->push = lec_push;
849 return 0; 872 return 0;
850} 873}
851 874
852static int 875static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
853lec_mcast_attach(struct atm_vcc *vcc, int arg)
854{ 876{
855 if (arg <0 || arg >= MAX_LEC_ITF || !dev_lec[arg]) 877 if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
856 return -EINVAL; 878 return -EINVAL;
857 vcc->proto_data = dev_lec[arg]; 879 vcc->proto_data = dev_lec[arg];
858 return (lec_mcast_make((struct lec_priv*)dev_lec[arg]->priv, vcc)); 880 return (lec_mcast_make((struct lec_priv *)dev_lec[arg]->priv, vcc));
859} 881}
860 882
861/* Initialize device. */ 883/* Initialize device. */
862static int 884static int lecd_attach(struct atm_vcc *vcc, int arg)
863lecd_attach(struct atm_vcc *vcc, int arg) 885{
864{ 886 int i;
865 int i; 887 struct lec_priv *priv;
866 struct lec_priv *priv;
867 888
868 if (arg<0) 889 if (arg < 0)
869 i = 0; 890 i = 0;
870 else 891 else
871 i = arg; 892 i = arg;
872#ifdef CONFIG_TR 893#ifdef CONFIG_TR
873 if (arg >= MAX_LEC_ITF) 894 if (arg >= MAX_LEC_ITF)
874 return -EINVAL; 895 return -EINVAL;
875#else /* Reserve the top NUM_TR_DEVS for TR */ 896#else /* Reserve the top NUM_TR_DEVS for TR */
876 if (arg >= (MAX_LEC_ITF-NUM_TR_DEVS)) 897 if (arg >= (MAX_LEC_ITF - NUM_TR_DEVS))
877 return -EINVAL; 898 return -EINVAL;
878#endif 899#endif
879 if (!dev_lec[i]) { 900 if (!dev_lec[i]) {
880 int is_trdev, size; 901 int is_trdev, size;
881 902
882 is_trdev = 0; 903 is_trdev = 0;
883 if (i >= (MAX_LEC_ITF - NUM_TR_DEVS)) 904 if (i >= (MAX_LEC_ITF - NUM_TR_DEVS))
884 is_trdev = 1; 905 is_trdev = 1;
885 906
886 size = sizeof(struct lec_priv); 907 size = sizeof(struct lec_priv);
887#ifdef CONFIG_TR 908#ifdef CONFIG_TR
888 if (is_trdev) 909 if (is_trdev)
889 dev_lec[i] = alloc_trdev(size); 910 dev_lec[i] = alloc_trdev(size);
890 else 911 else
891#endif 912#endif
892 dev_lec[i] = alloc_etherdev(size); 913 dev_lec[i] = alloc_etherdev(size);
893 if (!dev_lec[i]) 914 if (!dev_lec[i])
894 return -ENOMEM; 915 return -ENOMEM;
895 snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i); 916 snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i);
896 if (register_netdev(dev_lec[i])) { 917 if (register_netdev(dev_lec[i])) {
897 free_netdev(dev_lec[i]); 918 free_netdev(dev_lec[i]);
898 return -EINVAL; 919 return -EINVAL;
899 } 920 }
900 921
901 priv = dev_lec[i]->priv; 922 priv = dev_lec[i]->priv;
902 priv->is_trdev = is_trdev; 923 priv->is_trdev = is_trdev;
903 lec_init(dev_lec[i]); 924 lec_init(dev_lec[i]);
904 } else { 925 } else {
905 priv = dev_lec[i]->priv; 926 priv = dev_lec[i]->priv;
906 if (priv->lecd) 927 if (priv->lecd)
907 return -EADDRINUSE; 928 return -EADDRINUSE;
908 } 929 }
909 lec_arp_init(priv); 930 lec_arp_init(priv);
910 priv->itfnum = i; /* LANE2 addition */ 931 priv->itfnum = i; /* LANE2 addition */
911 priv->lecd = vcc; 932 priv->lecd = vcc;
912 vcc->dev = &lecatm_dev; 933 vcc->dev = &lecatm_dev;
913 vcc_insert_socket(sk_atm(vcc)); 934 vcc_insert_socket(sk_atm(vcc));
914 935
915 vcc->proto_data = dev_lec[i]; 936 vcc->proto_data = dev_lec[i];
916 set_bit(ATM_VF_META,&vcc->flags); 937 set_bit(ATM_VF_META, &vcc->flags);
917 set_bit(ATM_VF_READY,&vcc->flags); 938 set_bit(ATM_VF_READY, &vcc->flags);
918 939
919 /* Set default values to these variables */ 940 /* Set default values to these variables */
920 priv->maximum_unknown_frame_count = 1; 941 priv->maximum_unknown_frame_count = 1;
921 priv->max_unknown_frame_time = (1*HZ); 942 priv->max_unknown_frame_time = (1 * HZ);
922 priv->vcc_timeout_period = (1200*HZ); 943 priv->vcc_timeout_period = (1200 * HZ);
923 priv->max_retry_count = 1; 944 priv->max_retry_count = 1;
924 priv->aging_time = (300*HZ); 945 priv->aging_time = (300 * HZ);
925 priv->forward_delay_time = (15*HZ); 946 priv->forward_delay_time = (15 * HZ);
926 priv->topology_change = 0; 947 priv->topology_change = 0;
927 priv->arp_response_time = (1*HZ); 948 priv->arp_response_time = (1 * HZ);
928 priv->flush_timeout = (4*HZ); 949 priv->flush_timeout = (4 * HZ);
929 priv->path_switching_delay = (6*HZ); 950 priv->path_switching_delay = (6 * HZ);
930 951
931 if (dev_lec[i]->flags & IFF_UP) { 952 if (dev_lec[i]->flags & IFF_UP) {
932 netif_start_queue(dev_lec[i]); 953 netif_start_queue(dev_lec[i]);
933 } 954 }
934 __module_get(THIS_MODULE); 955 __module_get(THIS_MODULE);
935 return i; 956 return i;
936} 957}
937 958
938#ifdef CONFIG_PROC_FS 959#ifdef CONFIG_PROC_FS
939static char* lec_arp_get_status_string(unsigned char status) 960static char *lec_arp_get_status_string(unsigned char status)
940{ 961{
941 static char *lec_arp_status_string[] = { 962 static char *lec_arp_status_string[] = {
942 "ESI_UNKNOWN ", 963 "ESI_UNKNOWN ",
@@ -966,15 +987,14 @@ static void lec_info(struct seq_file *seq, struct lec_arp_table *entry)
966 if (entry->vcc) 987 if (entry->vcc)
967 seq_printf(seq, "%3d %3d ", entry->vcc->vpi, entry->vcc->vci); 988 seq_printf(seq, "%3d %3d ", entry->vcc->vpi, entry->vcc->vci);
968 else 989 else
969 seq_printf(seq, " "); 990 seq_printf(seq, " ");
970 if (entry->recv_vcc) { 991 if (entry->recv_vcc) {
971 seq_printf(seq, " %3d %3d", entry->recv_vcc->vpi, 992 seq_printf(seq, " %3d %3d", entry->recv_vcc->vpi,
972 entry->recv_vcc->vci); 993 entry->recv_vcc->vci);
973 } 994 }
974 seq_putc(seq, '\n'); 995 seq_putc(seq, '\n');
975} 996}
976 997
977
978struct lec_state { 998struct lec_state {
979 unsigned long flags; 999 unsigned long flags;
980 struct lec_priv *locked; 1000 struct lec_priv *locked;
@@ -1005,7 +1025,7 @@ static void *lec_tbl_walk(struct lec_state *state, struct lec_arp_table *tbl,
1005} 1025}
1006 1026
1007static void *lec_arp_walk(struct lec_state *state, loff_t *l, 1027static void *lec_arp_walk(struct lec_state *state, loff_t *l,
1008 struct lec_priv *priv) 1028 struct lec_priv *priv)
1009{ 1029{
1010 void *v = NULL; 1030 void *v = NULL;
1011 int p; 1031 int p;
@@ -1046,8 +1066,7 @@ static void *lec_priv_walk(struct lec_state *state, loff_t *l,
1046 state->locked = priv; 1066 state->locked = priv;
1047 spin_lock_irqsave(&priv->lec_arp_lock, state->flags); 1067 spin_lock_irqsave(&priv->lec_arp_lock, state->flags);
1048 } 1068 }
1049 if (!lec_arp_walk(state, l, priv) && 1069 if (!lec_arp_walk(state, l, priv) && !lec_misc_walk(state, l, priv)) {
1050 !lec_misc_walk(state, l, priv)) {
1051 spin_unlock_irqrestore(&priv->lec_arp_lock, state->flags); 1070 spin_unlock_irqrestore(&priv->lec_arp_lock, state->flags);
1052 state->locked = NULL; 1071 state->locked = NULL;
1053 /* Partial state reset for the next time we get called */ 1072 /* Partial state reset for the next time we get called */
@@ -1081,7 +1100,7 @@ static void *lec_get_idx(struct lec_state *state, loff_t l)
1081 if (v) 1100 if (v)
1082 break; 1101 break;
1083 } 1102 }
1084 return v; 1103 return v;
1085} 1104}
1086 1105
1087static void *lec_seq_start(struct seq_file *seq, loff_t *pos) 1106static void *lec_seq_start(struct seq_file *seq, loff_t *pos)
@@ -1095,7 +1114,7 @@ static void *lec_seq_start(struct seq_file *seq, loff_t *pos)
1095 state->misc_table = 0; 1114 state->misc_table = 0;
1096 state->entry = (void *)1; 1115 state->entry = (void *)1;
1097 1116
1098 return *pos ? lec_get_idx(state, *pos) : (void*)1; 1117 return *pos ? lec_get_idx(state, *pos) : (void *)1;
1099} 1118}
1100 1119
1101static void lec_seq_stop(struct seq_file *seq, void *v) 1120static void lec_seq_stop(struct seq_file *seq, void *v)
@@ -1120,15 +1139,15 @@ static void *lec_seq_next(struct seq_file *seq, void *v, loff_t *pos)
1120 1139
1121static int lec_seq_show(struct seq_file *seq, void *v) 1140static int lec_seq_show(struct seq_file *seq, void *v)
1122{ 1141{
1123 static char lec_banner[] = "Itf MAC ATM destination" 1142 static char lec_banner[] = "Itf MAC ATM destination"
1124 " Status Flags " 1143 " Status Flags "
1125 "VPI/VCI Recv VPI/VCI\n"; 1144 "VPI/VCI Recv VPI/VCI\n";
1126 1145
1127 if (v == (void *)1) 1146 if (v == (void *)1)
1128 seq_puts(seq, lec_banner); 1147 seq_puts(seq, lec_banner);
1129 else { 1148 else {
1130 struct lec_state *state = seq->private; 1149 struct lec_state *state = seq->private;
1131 struct net_device *dev = state->dev; 1150 struct net_device *dev = state->dev;
1132 1151
1133 seq_printf(seq, "%s ", dev->name); 1152 seq_printf(seq, "%s ", dev->name);
1134 lec_info(seq, state->entry); 1153 lec_info(seq, state->entry);
@@ -1137,10 +1156,10 @@ static int lec_seq_show(struct seq_file *seq, void *v)
1137} 1156}
1138 1157
1139static struct seq_operations lec_seq_ops = { 1158static struct seq_operations lec_seq_ops = {
1140 .start = lec_seq_start, 1159 .start = lec_seq_start,
1141 .next = lec_seq_next, 1160 .next = lec_seq_next,
1142 .stop = lec_seq_stop, 1161 .stop = lec_seq_stop,
1143 .show = lec_seq_show, 1162 .show = lec_seq_show,
1144}; 1163};
1145 1164
1146static int lec_seq_open(struct inode *inode, struct file *file) 1165static int lec_seq_open(struct inode *inode, struct file *file)
@@ -1174,11 +1193,11 @@ static int lec_seq_release(struct inode *inode, struct file *file)
1174} 1193}
1175 1194
1176static struct file_operations lec_seq_fops = { 1195static struct file_operations lec_seq_fops = {
1177 .owner = THIS_MODULE, 1196 .owner = THIS_MODULE,
1178 .open = lec_seq_open, 1197 .open = lec_seq_open,
1179 .read = seq_read, 1198 .read = seq_read,
1180 .llseek = seq_lseek, 1199 .llseek = seq_lseek,
1181 .release = lec_seq_release, 1200 .release = lec_seq_release,
1182}; 1201};
1183#endif 1202#endif
1184 1203
@@ -1186,38 +1205,38 @@ static int lane_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
1186{ 1205{
1187 struct atm_vcc *vcc = ATM_SD(sock); 1206 struct atm_vcc *vcc = ATM_SD(sock);
1188 int err = 0; 1207 int err = 0;
1189 1208
1190 switch (cmd) { 1209 switch (cmd) {
1191 case ATMLEC_CTRL: 1210 case ATMLEC_CTRL:
1192 case ATMLEC_MCAST: 1211 case ATMLEC_MCAST:
1193 case ATMLEC_DATA: 1212 case ATMLEC_DATA:
1194 if (!capable(CAP_NET_ADMIN)) 1213 if (!capable(CAP_NET_ADMIN))
1195 return -EPERM; 1214 return -EPERM;
1196 break; 1215 break;
1197 default: 1216 default:
1198 return -ENOIOCTLCMD; 1217 return -ENOIOCTLCMD;
1199 } 1218 }
1200 1219
1201 switch (cmd) { 1220 switch (cmd) {
1202 case ATMLEC_CTRL: 1221 case ATMLEC_CTRL:
1203 err = lecd_attach(vcc, (int) arg); 1222 err = lecd_attach(vcc, (int)arg);
1204 if (err >= 0) 1223 if (err >= 0)
1205 sock->state = SS_CONNECTED; 1224 sock->state = SS_CONNECTED;
1206 break; 1225 break;
1207 case ATMLEC_MCAST: 1226 case ATMLEC_MCAST:
1208 err = lec_mcast_attach(vcc, (int) arg); 1227 err = lec_mcast_attach(vcc, (int)arg);
1209 break; 1228 break;
1210 case ATMLEC_DATA: 1229 case ATMLEC_DATA:
1211 err = lec_vcc_attach(vcc, (void __user *) arg); 1230 err = lec_vcc_attach(vcc, (void __user *)arg);
1212 break; 1231 break;
1213 } 1232 }
1214 1233
1215 return err; 1234 return err;
1216} 1235}
1217 1236
1218static struct atm_ioctl lane_ioctl_ops = { 1237static struct atm_ioctl lane_ioctl_ops = {
1219 .owner = THIS_MODULE, 1238 .owner = THIS_MODULE,
1220 .ioctl = lane_ioctl, 1239 .ioctl = lane_ioctl,
1221}; 1240};
1222 1241
1223static int __init lane_module_init(void) 1242static int __init lane_module_init(void)
@@ -1231,29 +1250,29 @@ static int __init lane_module_init(void)
1231#endif 1250#endif
1232 1251
1233 register_atm_ioctl(&lane_ioctl_ops); 1252 register_atm_ioctl(&lane_ioctl_ops);
1234 printk("lec.c: " __DATE__ " " __TIME__ " initialized\n"); 1253 printk("lec.c: " __DATE__ " " __TIME__ " initialized\n");
1235 return 0; 1254 return 0;
1236} 1255}
1237 1256
1238static void __exit lane_module_cleanup(void) 1257static void __exit lane_module_cleanup(void)
1239{ 1258{
1240 int i; 1259 int i;
1241 struct lec_priv *priv; 1260 struct lec_priv *priv;
1242 1261
1243 remove_proc_entry("lec", atm_proc_root); 1262 remove_proc_entry("lec", atm_proc_root);
1244 1263
1245 deregister_atm_ioctl(&lane_ioctl_ops); 1264 deregister_atm_ioctl(&lane_ioctl_ops);
1246 1265
1247 for (i = 0; i < MAX_LEC_ITF; i++) { 1266 for (i = 0; i < MAX_LEC_ITF; i++) {
1248 if (dev_lec[i] != NULL) { 1267 if (dev_lec[i] != NULL) {
1249 priv = (struct lec_priv *)dev_lec[i]->priv; 1268 priv = (struct lec_priv *)dev_lec[i]->priv;
1250 unregister_netdev(dev_lec[i]); 1269 unregister_netdev(dev_lec[i]);
1251 free_netdev(dev_lec[i]); 1270 free_netdev(dev_lec[i]);
1252 dev_lec[i] = NULL; 1271 dev_lec[i] = NULL;
1253 } 1272 }
1254 } 1273 }
1255 1274
1256 return; 1275 return;
1257} 1276}
1258 1277
1259module_init(lane_module_init); 1278module_init(lane_module_init);
@@ -1267,34 +1286,34 @@ module_exit(lane_module_cleanup);
1267 * If dst_mac == NULL, targetless LE_ARP will be sent 1286 * If dst_mac == NULL, targetless LE_ARP will be sent
1268 */ 1287 */
1269static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force, 1288static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
1270 u8 **tlvs, u32 *sizeoftlvs) 1289 u8 **tlvs, u32 *sizeoftlvs)
1271{ 1290{
1272 unsigned long flags; 1291 unsigned long flags;
1273 struct lec_priv *priv = (struct lec_priv *)dev->priv; 1292 struct lec_priv *priv = (struct lec_priv *)dev->priv;
1274 struct lec_arp_table *table; 1293 struct lec_arp_table *table;
1275 struct sk_buff *skb; 1294 struct sk_buff *skb;
1276 int retval; 1295 int retval;
1277 1296
1278 if (force == 0) { 1297 if (force == 0) {
1279 spin_lock_irqsave(&priv->lec_arp_lock, flags); 1298 spin_lock_irqsave(&priv->lec_arp_lock, flags);
1280 table = lec_arp_find(priv, dst_mac); 1299 table = lec_arp_find(priv, dst_mac);
1281 spin_unlock_irqrestore(&priv->lec_arp_lock, flags); 1300 spin_unlock_irqrestore(&priv->lec_arp_lock, flags);
1282 if(table == NULL) 1301 if (table == NULL)
1283 return -1; 1302 return -1;
1284 1303
1285 *tlvs = kmalloc(table->sizeoftlvs, GFP_ATOMIC); 1304 *tlvs = kmalloc(table->sizeoftlvs, GFP_ATOMIC);
1286 if (*tlvs == NULL) 1305 if (*tlvs == NULL)
1287 return -1; 1306 return -1;
1288 1307
1289 memcpy(*tlvs, table->tlvs, table->sizeoftlvs); 1308 memcpy(*tlvs, table->tlvs, table->sizeoftlvs);
1290 *sizeoftlvs = table->sizeoftlvs; 1309 *sizeoftlvs = table->sizeoftlvs;
1291 1310
1292 return 0; 1311 return 0;
1293 } 1312 }
1294 1313
1295 if (sizeoftlvs == NULL) 1314 if (sizeoftlvs == NULL)
1296 retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, NULL); 1315 retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, NULL);
1297 1316
1298 else { 1317 else {
1299 skb = alloc_skb(*sizeoftlvs, GFP_ATOMIC); 1318 skb = alloc_skb(*sizeoftlvs, GFP_ATOMIC);
1300 if (skb == NULL) 1319 if (skb == NULL)
@@ -1303,9 +1322,8 @@ static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
1303 memcpy(skb->data, *tlvs, *sizeoftlvs); 1322 memcpy(skb->data, *tlvs, *sizeoftlvs);
1304 retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb); 1323 retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb);
1305 } 1324 }
1306 return retval; 1325 return retval;
1307} 1326}
1308
1309 1327
1310/* 1328/*
1311 * LANE2: 3.1.4, LE_ASSOCIATE.request 1329 * LANE2: 3.1.4, LE_ASSOCIATE.request
@@ -1314,80 +1332,85 @@ static int lane2_resolve(struct net_device *dev, u8 *dst_mac, int force,
1314 * Returns 1 for success, 0 for failure (out of memory) 1332 * Returns 1 for success, 0 for failure (out of memory)
1315 * 1333 *
1316 */ 1334 */
1317static int lane2_associate_req (struct net_device *dev, u8 *lan_dst, 1335static int lane2_associate_req(struct net_device *dev, u8 *lan_dst,
1318 u8 *tlvs, u32 sizeoftlvs) 1336 u8 *tlvs, u32 sizeoftlvs)
1319{ 1337{
1320 int retval; 1338 int retval;
1321 struct sk_buff *skb; 1339 struct sk_buff *skb;
1322 struct lec_priv *priv = (struct lec_priv*)dev->priv; 1340 struct lec_priv *priv = (struct lec_priv *)dev->priv;
1323 1341
1324 if (compare_ether_addr(lan_dst, dev->dev_addr)) 1342 if (compare_ether_addr(lan_dst, dev->dev_addr))
1325 return (0); /* not our mac address */ 1343 return (0); /* not our mac address */
1326 1344
1327 kfree(priv->tlvs); /* NULL if there was no previous association */ 1345 kfree(priv->tlvs); /* NULL if there was no previous association */
1328 1346
1329 priv->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL); 1347 priv->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
1330 if (priv->tlvs == NULL) 1348 if (priv->tlvs == NULL)
1331 return (0); 1349 return (0);
1332 priv->sizeoftlvs = sizeoftlvs; 1350 priv->sizeoftlvs = sizeoftlvs;
1333 memcpy(priv->tlvs, tlvs, sizeoftlvs); 1351 memcpy(priv->tlvs, tlvs, sizeoftlvs);
1334 1352
1335 skb = alloc_skb(sizeoftlvs, GFP_ATOMIC); 1353 skb = alloc_skb(sizeoftlvs, GFP_ATOMIC);
1336 if (skb == NULL) 1354 if (skb == NULL)
1337 return 0; 1355 return 0;
1338 skb->len = sizeoftlvs; 1356 skb->len = sizeoftlvs;
1339 memcpy(skb->data, tlvs, sizeoftlvs); 1357 memcpy(skb->data, tlvs, sizeoftlvs);
1340 retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb); 1358 retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
1341 if (retval != 0) 1359 if (retval != 0)
1342 printk("lec.c: lane2_associate_req() failed\n"); 1360 printk("lec.c: lane2_associate_req() failed\n");
1343 /* If the previous association has changed we must 1361 /*
1344 * somehow notify other LANE entities about the change 1362 * If the previous association has changed we must
1345 */ 1363 * somehow notify other LANE entities about the change
1346 return (1); 1364 */
1365 return (1);
1347} 1366}
1348 1367
1349/* 1368/*
1350 * LANE2: 3.1.5, LE_ASSOCIATE.indication 1369 * LANE2: 3.1.5, LE_ASSOCIATE.indication
1351 * 1370 *
1352 */ 1371 */
1353static void lane2_associate_ind (struct net_device *dev, u8 *mac_addr, 1372static void lane2_associate_ind(struct net_device *dev, u8 *mac_addr,
1354 u8 *tlvs, u32 sizeoftlvs) 1373 u8 *tlvs, u32 sizeoftlvs)
1355{ 1374{
1356#if 0 1375#if 0
1357 int i = 0; 1376 int i = 0;
1358#endif 1377#endif
1359 struct lec_priv *priv = (struct lec_priv *)dev->priv; 1378 struct lec_priv *priv = (struct lec_priv *)dev->priv;
1360#if 0 /* Why have the TLVs in LE_ARP entries since we do not use them? When you 1379#if 0 /*
1361 uncomment this code, make sure the TLVs get freed when entry is killed */ 1380 * Why have the TLVs in LE_ARP entries
1362 struct lec_arp_table *entry = lec_arp_find(priv, mac_addr); 1381 * since we do not use them? When you
1382 * uncomment this code, make sure the
1383 * TLVs get freed when entry is killed
1384 */
1385 struct lec_arp_table *entry = lec_arp_find(priv, mac_addr);
1363 1386
1364 if (entry == NULL) 1387 if (entry == NULL)
1365 return; /* should not happen */ 1388 return; /* should not happen */
1366 1389
1367 kfree(entry->tlvs); 1390 kfree(entry->tlvs);
1368 1391
1369 entry->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL); 1392 entry->tlvs = kmalloc(sizeoftlvs, GFP_KERNEL);
1370 if (entry->tlvs == NULL) 1393 if (entry->tlvs == NULL)
1371 return; 1394 return;
1372 1395
1373 entry->sizeoftlvs = sizeoftlvs; 1396 entry->sizeoftlvs = sizeoftlvs;
1374 memcpy(entry->tlvs, tlvs, sizeoftlvs); 1397 memcpy(entry->tlvs, tlvs, sizeoftlvs);
1375#endif 1398#endif
1376#if 0 1399#if 0
1377 printk("lec.c: lane2_associate_ind()\n"); 1400 printk("lec.c: lane2_associate_ind()\n");
1378 printk("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs); 1401 printk("dump of tlvs, sizeoftlvs=%d\n", sizeoftlvs);
1379 while (i < sizeoftlvs) 1402 while (i < sizeoftlvs)
1380 printk("%02x ", tlvs[i++]); 1403 printk("%02x ", tlvs[i++]);
1381 1404
1382 printk("\n"); 1405 printk("\n");
1383#endif 1406#endif
1384 1407
1385 /* tell MPOA about the TLVs we saw */ 1408 /* tell MPOA about the TLVs we saw */
1386 if (priv->lane2_ops && priv->lane2_ops->associate_indicator) { 1409 if (priv->lane2_ops && priv->lane2_ops->associate_indicator) {
1387 priv->lane2_ops->associate_indicator(dev, mac_addr, 1410 priv->lane2_ops->associate_indicator(dev, mac_addr,
1388 tlvs, sizeoftlvs); 1411 tlvs, sizeoftlvs);
1389 } 1412 }
1390 return; 1413 return;
1391} 1414}
1392 1415
1393/* 1416/*
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-15 22:11:13 -0500