Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * drivers/s390/net/claw.c | |
3 | * ESCON CLAW network driver | |
4 | * | |
8e84c801 | 5 | * Linux for zSeries version |
1da177e4 LT |
6 | * Copyright (C) 2002,2005 IBM Corporation |
7 | * Author(s) Original code written by: | |
8 | * Kazuo Iimura (iimura@jp.ibm.com) | |
9 | * Rewritten by | |
10 | * Andy Richter (richtera@us.ibm.com) | |
11 | * Marc Price (mwprice@us.ibm.com) | |
12 | * | |
13 | * sysfs parms: | |
14 | * group x.x.rrrr,x.x.wwww | |
15 | * read_buffer nnnnnnn | |
16 | * write_buffer nnnnnn | |
17 | * host_name aaaaaaaa | |
18 | * adapter_name aaaaaaaa | |
19 | * api_type aaaaaaaa | |
20 | * | |
21 | * eg. | |
22 | * group 0.0.0200 0.0.0201 | |
23 | * read_buffer 25 | |
24 | * write_buffer 20 | |
25 | * host_name LINUX390 | |
26 | * adapter_name RS6K | |
27 | * api_type TCPIP | |
28 | * | |
29 | * where | |
30 | * | |
31 | * The device id is decided by the order entries | |
32 | * are added to the group the first is claw0 the second claw1 | |
33 | * up to CLAW_MAX_DEV | |
34 | * | |
35 | * rrrr - the first of 2 consecutive device addresses used for the | |
36 | * CLAW protocol. | |
37 | * The specified address is always used as the input (Read) | |
38 | * channel and the next address is used as the output channel. | |
39 | * | |
40 | * wwww - the second of 2 consecutive device addresses used for | |
41 | * the CLAW protocol. | |
42 | * The specified address is always used as the output | |
43 | * channel and the previous address is used as the input channel. | |
44 | * | |
45 | * read_buffer - specifies number of input buffers to allocate. | |
46 | * write_buffer - specifies number of output buffers to allocate. | |
47 | * host_name - host name | |
48 | * adaptor_name - adaptor name | |
49 | * api_type - API type TCPIP or API will be sent and expected | |
50 | * as ws_name | |
51 | * | |
52 | * Note the following requirements: | |
53 | * 1) host_name must match the configured adapter_name on the remote side | |
54 | * 2) adaptor_name must match the configured host name on the remote side | |
55 | * | |
56 | * Change History | |
57 | * 1.00 Initial release shipped | |
58 | * 1.10 Changes for Buffer allocation | |
59 | * 1.15 Changed for 2.6 Kernel No longer compiles on 2.4 or lower | |
60 | * 1.25 Added Packing support | |
61 | */ | |
62 | #include <asm/bitops.h> | |
63 | #include <asm/ccwdev.h> | |
64 | #include <asm/ccwgroup.h> | |
65 | #include <asm/debug.h> | |
66 | #include <asm/idals.h> | |
67 | #include <asm/io.h> | |
68 | ||
69 | #include <linux/ctype.h> | |
70 | #include <linux/delay.h> | |
71 | #include <linux/errno.h> | |
72 | #include <linux/if_arp.h> | |
73 | #include <linux/init.h> | |
74 | #include <linux/interrupt.h> | |
75 | #include <linux/ip.h> | |
76 | #include <linux/kernel.h> | |
77 | #include <linux/module.h> | |
78 | #include <linux/netdevice.h> | |
79 | #include <linux/etherdevice.h> | |
80 | #include <linux/proc_fs.h> | |
81 | #include <linux/sched.h> | |
82 | #include <linux/signal.h> | |
83 | #include <linux/skbuff.h> | |
84 | #include <linux/slab.h> | |
85 | #include <linux/string.h> | |
86 | #include <linux/tcp.h> | |
87 | #include <linux/timer.h> | |
88 | #include <linux/types.h> | |
1da177e4 LT |
89 | |
90 | #include "cu3088.h" | |
91 | #include "claw.h" | |
92 | ||
93 | MODULE_AUTHOR("Andy Richter <richtera@us.ibm.com>"); | |
94 | MODULE_DESCRIPTION("Linux for zSeries CLAW Driver\n" \ | |
95 | "Copyright 2000,2005 IBM Corporation\n"); | |
96 | MODULE_LICENSE("GPL"); | |
97 | ||
98 | /* Debugging is based on DEBUGMSG, IOTRACE, or FUNCTRACE options: | |
99 | DEBUGMSG - Enables output of various debug messages in the code | |
100 | IOTRACE - Enables output of CCW and other IO related traces | |
101 | FUNCTRACE - Enables output of function entry/exit trace | |
102 | Define any combination of above options to enable tracing | |
103 | ||
104 | CLAW also uses the s390dbf file system see claw_trace and claw_setup | |
105 | */ | |
106 | ||
107 | /* following enables tracing */ | |
108 | //#define DEBUGMSG | |
109 | //#define IOTRACE | |
110 | //#define FUNCTRACE | |
111 | ||
112 | #ifdef DEBUGMSG | |
113 | #define DEBUG | |
114 | #endif | |
115 | ||
116 | #ifdef IOTRACE | |
117 | #define DEBUG | |
118 | #endif | |
119 | ||
120 | #ifdef FUNCTRACE | |
121 | #define DEBUG | |
122 | #endif | |
123 | ||
124 | char debug_buffer[255]; | |
125 | /** | |
126 | * Debug Facility Stuff | |
127 | */ | |
128 | static debug_info_t *claw_dbf_setup; | |
129 | static debug_info_t *claw_dbf_trace; | |
130 | ||
131 | /** | |
132 | * CLAW Debug Facility functions | |
133 | */ | |
134 | static void | |
135 | claw_unregister_debug_facility(void) | |
136 | { | |
137 | if (claw_dbf_setup) | |
138 | debug_unregister(claw_dbf_setup); | |
139 | if (claw_dbf_trace) | |
140 | debug_unregister(claw_dbf_trace); | |
141 | } | |
142 | ||
143 | static int | |
144 | claw_register_debug_facility(void) | |
145 | { | |
66a464db MH |
146 | claw_dbf_setup = debug_register("claw_setup", 2, 1, 8); |
147 | claw_dbf_trace = debug_register("claw_trace", 2, 2, 8); | |
1da177e4 LT |
148 | if (claw_dbf_setup == NULL || claw_dbf_trace == NULL) { |
149 | printk(KERN_WARNING "Not enough memory for debug facility.\n"); | |
150 | claw_unregister_debug_facility(); | |
151 | return -ENOMEM; | |
152 | } | |
153 | debug_register_view(claw_dbf_setup, &debug_hex_ascii_view); | |
154 | debug_set_level(claw_dbf_setup, 2); | |
155 | debug_register_view(claw_dbf_trace, &debug_hex_ascii_view); | |
156 | debug_set_level(claw_dbf_trace, 2); | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static inline void | |
161 | claw_set_busy(struct net_device *dev) | |
162 | { | |
163 | ((struct claw_privbk *) dev->priv)->tbusy=1; | |
164 | eieio(); | |
165 | } | |
166 | ||
167 | static inline void | |
168 | claw_clear_busy(struct net_device *dev) | |
169 | { | |
170 | clear_bit(0, &(((struct claw_privbk *) dev->priv)->tbusy)); | |
171 | netif_wake_queue(dev); | |
172 | eieio(); | |
173 | } | |
174 | ||
175 | static inline int | |
176 | claw_check_busy(struct net_device *dev) | |
177 | { | |
178 | eieio(); | |
179 | return ((struct claw_privbk *) dev->priv)->tbusy; | |
180 | } | |
181 | ||
182 | static inline void | |
183 | claw_setbit_busy(int nr,struct net_device *dev) | |
184 | { | |
185 | netif_stop_queue(dev); | |
186 | set_bit(nr, (void *)&(((struct claw_privbk *)dev->priv)->tbusy)); | |
187 | } | |
188 | ||
189 | static inline void | |
190 | claw_clearbit_busy(int nr,struct net_device *dev) | |
191 | { | |
192 | clear_bit(nr,(void *)&(((struct claw_privbk *)dev->priv)->tbusy)); | |
193 | netif_wake_queue(dev); | |
194 | } | |
195 | ||
196 | static inline int | |
197 | claw_test_and_setbit_busy(int nr,struct net_device *dev) | |
198 | { | |
199 | netif_stop_queue(dev); | |
200 | return test_and_set_bit(nr, | |
201 | (void *)&(((struct claw_privbk *) dev->priv)->tbusy)); | |
202 | } | |
203 | ||
204 | ||
205 | /* Functions for the DEV methods */ | |
206 | ||
207 | static int claw_probe(struct ccwgroup_device *cgdev); | |
208 | static void claw_remove_device(struct ccwgroup_device *cgdev); | |
209 | static void claw_purge_skb_queue(struct sk_buff_head *q); | |
210 | static int claw_new_device(struct ccwgroup_device *cgdev); | |
211 | static int claw_shutdown_device(struct ccwgroup_device *cgdev); | |
212 | static int claw_tx(struct sk_buff *skb, struct net_device *dev); | |
213 | static int claw_change_mtu( struct net_device *dev, int new_mtu); | |
214 | static int claw_open(struct net_device *dev); | |
215 | static void claw_irq_handler(struct ccw_device *cdev, | |
216 | unsigned long intparm, struct irb *irb); | |
217 | static void claw_irq_tasklet ( unsigned long data ); | |
218 | static int claw_release(struct net_device *dev); | |
219 | static void claw_write_retry ( struct chbk * p_ch ); | |
220 | static void claw_write_next ( struct chbk * p_ch ); | |
221 | static void claw_timer ( struct chbk * p_ch ); | |
222 | ||
223 | /* Functions */ | |
224 | static int add_claw_reads(struct net_device *dev, | |
225 | struct ccwbk* p_first, struct ccwbk* p_last); | |
226 | static void inline ccw_check_return_code (struct ccw_device *cdev, | |
227 | int return_code); | |
228 | static void inline ccw_check_unit_check (struct chbk * p_ch, | |
229 | unsigned char sense ); | |
230 | static int find_link(struct net_device *dev, char *host_name, char *ws_name ); | |
231 | static int claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid); | |
232 | static int init_ccw_bk(struct net_device *dev); | |
233 | static void probe_error( struct ccwgroup_device *cgdev); | |
234 | static struct net_device_stats *claw_stats(struct net_device *dev); | |
235 | static int inline pages_to_order_of_mag(int num_of_pages); | |
236 | static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr); | |
237 | #ifdef DEBUG | |
238 | static void dumpit (char *buf, int len); | |
239 | #endif | |
240 | /* sysfs Functions */ | |
3fd3c0a5 YI |
241 | static ssize_t claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf); |
242 | static ssize_t claw_hname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 243 | const char *buf, size_t count); |
3fd3c0a5 YI |
244 | static ssize_t claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf); |
245 | static ssize_t claw_adname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 246 | const char *buf, size_t count); |
3fd3c0a5 YI |
247 | static ssize_t claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf); |
248 | static ssize_t claw_apname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 249 | const char *buf, size_t count); |
3fd3c0a5 YI |
250 | static ssize_t claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf); |
251 | static ssize_t claw_wbuff_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 252 | const char *buf, size_t count); |
3fd3c0a5 YI |
253 | static ssize_t claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf); |
254 | static ssize_t claw_rbuff_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 LT |
255 | const char *buf, size_t count); |
256 | static int claw_add_files(struct device *dev); | |
257 | static void claw_remove_files(struct device *dev); | |
258 | ||
259 | /* Functions for System Validate */ | |
260 | static int claw_process_control( struct net_device *dev, struct ccwbk * p_ccw); | |
261 | static int claw_send_control(struct net_device *dev, __u8 type, __u8 link, | |
262 | __u8 correlator, __u8 rc , char *local_name, char *remote_name); | |
263 | static int claw_snd_conn_req(struct net_device *dev, __u8 link); | |
264 | static int claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl); | |
265 | static int claw_snd_sys_validate_rsp(struct net_device *dev, | |
266 | struct clawctl * p_ctl, __u32 return_code); | |
267 | static int claw_strt_conn_req(struct net_device *dev ); | |
268 | static void claw_strt_read ( struct net_device *dev, int lock ); | |
269 | static void claw_strt_out_IO( struct net_device *dev ); | |
270 | static void claw_free_wrt_buf( struct net_device *dev ); | |
271 | ||
272 | /* Functions for unpack reads */ | |
273 | static void unpack_read (struct net_device *dev ); | |
274 | ||
275 | /* ccwgroup table */ | |
276 | ||
277 | static struct ccwgroup_driver claw_group_driver = { | |
278 | .owner = THIS_MODULE, | |
279 | .name = "claw", | |
280 | .max_slaves = 2, | |
281 | .driver_id = 0xC3D3C1E6, | |
282 | .probe = claw_probe, | |
283 | .remove = claw_remove_device, | |
284 | .set_online = claw_new_device, | |
285 | .set_offline = claw_shutdown_device, | |
286 | }; | |
287 | ||
288 | /* | |
289 | * | |
290 | * Key functions | |
291 | */ | |
292 | ||
293 | /*----------------------------------------------------------------* | |
294 | * claw_probe * | |
295 | * this function is called for each CLAW device. * | |
296 | *----------------------------------------------------------------*/ | |
297 | static int | |
298 | claw_probe(struct ccwgroup_device *cgdev) | |
299 | { | |
300 | int rc; | |
301 | struct claw_privbk *privptr=NULL; | |
302 | ||
303 | #ifdef FUNCTRACE | |
304 | printk(KERN_INFO "%s Enter\n",__FUNCTION__); | |
305 | #endif | |
306 | CLAW_DBF_TEXT(2,setup,"probe"); | |
307 | if (!get_device(&cgdev->dev)) | |
308 | return -ENODEV; | |
309 | #ifdef DEBUGMSG | |
310 | printk(KERN_INFO "claw: variable cgdev =\n"); | |
311 | dumpit((char *)cgdev, sizeof(struct ccwgroup_device)); | |
312 | #endif | |
313 | privptr = kmalloc(sizeof(struct claw_privbk), GFP_KERNEL); | |
314 | if (privptr == NULL) { | |
315 | probe_error(cgdev); | |
316 | put_device(&cgdev->dev); | |
317 | printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", | |
318 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
319 | CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); | |
320 | return -ENOMEM; | |
321 | } | |
322 | memset(privptr,0x00,sizeof(struct claw_privbk)); | |
323 | privptr->p_mtc_envelope= kmalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL); | |
324 | privptr->p_env = kmalloc(sizeof(struct claw_env), GFP_KERNEL); | |
325 | if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) { | |
326 | probe_error(cgdev); | |
327 | put_device(&cgdev->dev); | |
328 | printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", | |
329 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
330 | CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); | |
331 | return -ENOMEM; | |
332 | } | |
333 | memset(privptr->p_mtc_envelope, 0x00, MAX_ENVELOPE_SIZE); | |
334 | memset(privptr->p_env, 0x00, sizeof(struct claw_env)); | |
335 | memcpy(privptr->p_env->adapter_name,WS_NAME_NOT_DEF,8); | |
336 | memcpy(privptr->p_env->host_name,WS_NAME_NOT_DEF,8); | |
337 | memcpy(privptr->p_env->api_type,WS_NAME_NOT_DEF,8); | |
338 | privptr->p_env->packing = 0; | |
339 | privptr->p_env->write_buffers = 5; | |
340 | privptr->p_env->read_buffers = 5; | |
341 | privptr->p_env->read_size = CLAW_FRAME_SIZE; | |
342 | privptr->p_env->write_size = CLAW_FRAME_SIZE; | |
343 | rc = claw_add_files(&cgdev->dev); | |
344 | if (rc) { | |
345 | probe_error(cgdev); | |
346 | put_device(&cgdev->dev); | |
347 | printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n", | |
348 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
349 | CLAW_DBF_TEXT_(2,setup,"probex%d",rc); | |
350 | return rc; | |
351 | } | |
352 | printk(KERN_INFO "claw: sysfs files added for %s\n",cgdev->cdev[0]->dev.bus_id); | |
353 | privptr->p_env->p_priv = privptr; | |
354 | cgdev->cdev[0]->handler = claw_irq_handler; | |
355 | cgdev->cdev[1]->handler = claw_irq_handler; | |
356 | cgdev->dev.driver_data = privptr; | |
357 | #ifdef FUNCTRACE | |
358 | printk(KERN_INFO "claw:%s exit on line %d, " | |
359 | "rc = 0\n",__FUNCTION__,__LINE__); | |
360 | #endif | |
361 | CLAW_DBF_TEXT(2,setup,"prbext 0"); | |
362 | ||
363 | return 0; | |
364 | } /* end of claw_probe */ | |
365 | ||
366 | /*-------------------------------------------------------------------* | |
367 | * claw_tx * | |
368 | *-------------------------------------------------------------------*/ | |
369 | ||
370 | static int | |
371 | claw_tx(struct sk_buff *skb, struct net_device *dev) | |
372 | { | |
373 | int rc; | |
374 | struct claw_privbk *privptr=dev->priv; | |
375 | unsigned long saveflags; | |
376 | struct chbk *p_ch; | |
377 | ||
378 | #ifdef FUNCTRACE | |
379 | printk(KERN_INFO "%s:%s enter\n",dev->name,__FUNCTION__); | |
380 | #endif | |
381 | CLAW_DBF_TEXT(4,trace,"claw_tx"); | |
382 | p_ch=&privptr->channel[WRITE]; | |
383 | if (skb == NULL) { | |
384 | printk(KERN_WARNING "%s: null pointer passed as sk_buffer\n", | |
385 | dev->name); | |
386 | privptr->stats.tx_dropped++; | |
387 | #ifdef FUNCTRACE | |
388 | printk(KERN_INFO "%s: %s() exit on line %d, rc = EIO\n", | |
389 | dev->name,__FUNCTION__, __LINE__); | |
390 | #endif | |
391 | CLAW_DBF_TEXT_(2,trace,"clawtx%d",-EIO); | |
392 | return -EIO; | |
393 | } | |
394 | ||
395 | #ifdef IOTRACE | |
396 | printk(KERN_INFO "%s: variable sk_buff=\n",dev->name); | |
397 | dumpit((char *) skb, sizeof(struct sk_buff)); | |
398 | printk(KERN_INFO "%s: variable dev=\n",dev->name); | |
399 | dumpit((char *) dev, sizeof(struct net_device)); | |
400 | #endif | |
401 | spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags); | |
402 | rc=claw_hw_tx( skb, dev, 1 ); | |
403 | spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); | |
404 | #ifdef FUNCTRACE | |
405 | printk(KERN_INFO "%s:%s exit on line %d, rc = %d\n", | |
406 | dev->name, __FUNCTION__, __LINE__, rc); | |
407 | #endif | |
408 | CLAW_DBF_TEXT_(4,trace,"clawtx%d",rc); | |
409 | return rc; | |
410 | } /* end of claw_tx */ | |
411 | ||
412 | /*------------------------------------------------------------------* | |
413 | * pack the collect queue into an skb and return it * | |
414 | * If not packing just return the top skb from the queue * | |
415 | *------------------------------------------------------------------*/ | |
416 | ||
417 | static struct sk_buff * | |
418 | claw_pack_skb(struct claw_privbk *privptr) | |
419 | { | |
420 | struct sk_buff *new_skb,*held_skb; | |
421 | struct chbk *p_ch = &privptr->channel[WRITE]; | |
422 | struct claw_env *p_env = privptr->p_env; | |
423 | int pkt_cnt,pk_ind,so_far; | |
424 | ||
425 | new_skb = NULL; /* assume no dice */ | |
426 | pkt_cnt = 0; | |
427 | CLAW_DBF_TEXT(4,trace,"PackSKBe"); | |
b03efcfb | 428 | if (!skb_queue_empty(&p_ch->collect_queue)) { |
1da177e4 LT |
429 | /* some data */ |
430 | held_skb = skb_dequeue(&p_ch->collect_queue); | |
1da177e4 | 431 | if (held_skb) |
8e84c801 | 432 | dev_kfree_skb_any(held_skb); |
1da177e4 LT |
433 | else |
434 | return NULL; | |
8e84c801 FP |
435 | if (p_env->packing != DO_PACKED) |
436 | return held_skb; | |
1da177e4 LT |
437 | /* get a new SKB we will pack at least one */ |
438 | new_skb = dev_alloc_skb(p_env->write_size); | |
439 | if (new_skb == NULL) { | |
440 | atomic_inc(&held_skb->users); | |
441 | skb_queue_head(&p_ch->collect_queue,held_skb); | |
442 | return NULL; | |
443 | } | |
444 | /* we have packed packet and a place to put it */ | |
445 | pk_ind = 1; | |
446 | so_far = 0; | |
447 | new_skb->cb[1] = 'P'; /* every skb on queue has pack header */ | |
448 | while ((pk_ind) && (held_skb != NULL)) { | |
449 | if (held_skb->len+so_far <= p_env->write_size-8) { | |
450 | memcpy(skb_put(new_skb,held_skb->len), | |
451 | held_skb->data,held_skb->len); | |
452 | privptr->stats.tx_packets++; | |
453 | so_far += held_skb->len; | |
454 | pkt_cnt++; | |
8e84c801 | 455 | dev_kfree_skb_any(held_skb); |
1da177e4 LT |
456 | held_skb = skb_dequeue(&p_ch->collect_queue); |
457 | if (held_skb) | |
458 | atomic_dec(&held_skb->users); | |
459 | } else { | |
460 | pk_ind = 0; | |
461 | atomic_inc(&held_skb->users); | |
462 | skb_queue_head(&p_ch->collect_queue,held_skb); | |
463 | } | |
464 | } | |
465 | #ifdef IOTRACE | |
466 | printk(KERN_INFO "%s: %s() Packed %d len %d\n", | |
467 | p_env->ndev->name, | |
468 | __FUNCTION__,pkt_cnt,new_skb->len); | |
469 | #endif | |
470 | } | |
471 | CLAW_DBF_TEXT(4,trace,"PackSKBx"); | |
472 | return new_skb; | |
473 | } | |
474 | ||
475 | /*-------------------------------------------------------------------* | |
476 | * claw_change_mtu * | |
477 | * * | |
478 | *-------------------------------------------------------------------*/ | |
479 | ||
480 | static int | |
481 | claw_change_mtu(struct net_device *dev, int new_mtu) | |
482 | { | |
483 | struct claw_privbk *privptr=dev->priv; | |
484 | int buff_size; | |
485 | #ifdef FUNCTRACE | |
486 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
487 | #endif | |
488 | #ifdef DEBUGMSG | |
489 | printk(KERN_INFO "variable dev =\n"); | |
490 | dumpit((char *) dev, sizeof(struct net_device)); | |
491 | printk(KERN_INFO "variable new_mtu = %d\n", new_mtu); | |
492 | #endif | |
493 | CLAW_DBF_TEXT(4,trace,"setmtu"); | |
494 | buff_size = privptr->p_env->write_size; | |
495 | if ((new_mtu < 60) || (new_mtu > buff_size)) { | |
496 | #ifdef FUNCTRACE | |
497 | printk(KERN_INFO "%s:%s Exit on line %d, rc=EINVAL\n", | |
498 | dev->name, | |
499 | __FUNCTION__, __LINE__); | |
500 | #endif | |
501 | return -EINVAL; | |
502 | } | |
503 | dev->mtu = new_mtu; | |
504 | #ifdef FUNCTRACE | |
505 | printk(KERN_INFO "%s:%s Exit on line %d\n",dev->name, | |
506 | __FUNCTION__, __LINE__); | |
507 | #endif | |
508 | return 0; | |
509 | } /* end of claw_change_mtu */ | |
510 | ||
511 | ||
512 | /*-------------------------------------------------------------------* | |
513 | * claw_open * | |
514 | * * | |
515 | *-------------------------------------------------------------------*/ | |
516 | static int | |
517 | claw_open(struct net_device *dev) | |
518 | { | |
519 | ||
520 | int rc; | |
521 | int i; | |
522 | unsigned long saveflags=0; | |
523 | unsigned long parm; | |
524 | struct claw_privbk *privptr; | |
525 | DECLARE_WAITQUEUE(wait, current); | |
526 | struct timer_list timer; | |
527 | struct ccwbk *p_buf; | |
528 | ||
529 | #ifdef FUNCTRACE | |
530 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
531 | #endif | |
532 | CLAW_DBF_TEXT(4,trace,"open"); | |
533 | if (!dev | (dev->name[0] == 0x00)) { | |
534 | CLAW_DBF_TEXT(2,trace,"BadDev"); | |
535 | printk(KERN_WARNING "claw: Bad device at open failing \n"); | |
536 | return -ENODEV; | |
537 | } | |
538 | privptr = (struct claw_privbk *)dev->priv; | |
539 | /* allocate and initialize CCW blocks */ | |
540 | if (privptr->buffs_alloc == 0) { | |
541 | rc=init_ccw_bk(dev); | |
542 | if (rc) { | |
543 | printk(KERN_INFO "%s:%s Exit on line %d, rc=ENOMEM\n", | |
544 | dev->name, | |
545 | __FUNCTION__, __LINE__); | |
546 | CLAW_DBF_TEXT(2,trace,"openmem"); | |
547 | return -ENOMEM; | |
548 | } | |
549 | } | |
550 | privptr->system_validate_comp=0; | |
551 | privptr->release_pend=0; | |
552 | if(strncmp(privptr->p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
553 | privptr->p_env->read_size=DEF_PACK_BUFSIZE; | |
554 | privptr->p_env->write_size=DEF_PACK_BUFSIZE; | |
555 | privptr->p_env->packing=PACKING_ASK; | |
556 | } else { | |
557 | privptr->p_env->packing=0; | |
558 | privptr->p_env->read_size=CLAW_FRAME_SIZE; | |
559 | privptr->p_env->write_size=CLAW_FRAME_SIZE; | |
560 | } | |
561 | claw_set_busy(dev); | |
562 | tasklet_init(&privptr->channel[READ].tasklet, claw_irq_tasklet, | |
563 | (unsigned long) &privptr->channel[READ]); | |
564 | for ( i = 0; i < 2; i++) { | |
565 | CLAW_DBF_TEXT_(2,trace,"opn_ch%d",i); | |
566 | init_waitqueue_head(&privptr->channel[i].wait); | |
567 | /* skb_queue_head_init(&p_ch->io_queue); */ | |
568 | if (i == WRITE) | |
569 | skb_queue_head_init( | |
570 | &privptr->channel[WRITE].collect_queue); | |
571 | privptr->channel[i].flag_a = 0; | |
572 | privptr->channel[i].IO_active = 0; | |
573 | privptr->channel[i].flag &= ~CLAW_TIMER; | |
574 | init_timer(&timer); | |
575 | timer.function = (void *)claw_timer; | |
576 | timer.data = (unsigned long)(&privptr->channel[i]); | |
577 | timer.expires = jiffies + 15*HZ; | |
578 | add_timer(&timer); | |
579 | spin_lock_irqsave(get_ccwdev_lock( | |
580 | privptr->channel[i].cdev), saveflags); | |
581 | parm = (unsigned long) &privptr->channel[i]; | |
582 | privptr->channel[i].claw_state = CLAW_START_HALT_IO; | |
583 | rc = 0; | |
584 | add_wait_queue(&privptr->channel[i].wait, &wait); | |
585 | rc = ccw_device_halt( | |
586 | (struct ccw_device *)privptr->channel[i].cdev,parm); | |
587 | set_current_state(TASK_INTERRUPTIBLE); | |
588 | spin_unlock_irqrestore( | |
589 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
590 | schedule(); | |
591 | set_current_state(TASK_RUNNING); | |
592 | remove_wait_queue(&privptr->channel[i].wait, &wait); | |
593 | if(rc != 0) | |
594 | ccw_check_return_code(privptr->channel[i].cdev, rc); | |
595 | if((privptr->channel[i].flag & CLAW_TIMER) == 0x00) | |
596 | del_timer(&timer); | |
597 | } | |
598 | if ((((privptr->channel[READ].last_dstat | | |
599 | privptr->channel[WRITE].last_dstat) & | |
600 | ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) || | |
601 | (((privptr->channel[READ].flag | | |
602 | privptr->channel[WRITE].flag) & CLAW_TIMER) != 0x00)) { | |
603 | #ifdef DEBUGMSG | |
604 | printk(KERN_INFO "%s: channel problems during open - read:" | |
605 | " %02x - write: %02x\n", | |
606 | dev->name, | |
607 | privptr->channel[READ].last_dstat, | |
608 | privptr->channel[WRITE].last_dstat); | |
609 | #endif | |
610 | printk(KERN_INFO "%s: remote side is not ready\n", dev->name); | |
611 | CLAW_DBF_TEXT(2,trace,"notrdy"); | |
612 | ||
613 | for ( i = 0; i < 2; i++) { | |
614 | spin_lock_irqsave( | |
615 | get_ccwdev_lock(privptr->channel[i].cdev), | |
616 | saveflags); | |
617 | parm = (unsigned long) &privptr->channel[i]; | |
618 | privptr->channel[i].claw_state = CLAW_STOP; | |
619 | rc = ccw_device_halt( | |
620 | (struct ccw_device *)&privptr->channel[i].cdev, | |
621 | parm); | |
622 | spin_unlock_irqrestore( | |
623 | get_ccwdev_lock(privptr->channel[i].cdev), | |
624 | saveflags); | |
625 | if (rc != 0) { | |
626 | ccw_check_return_code( | |
627 | privptr->channel[i].cdev, rc); | |
628 | } | |
629 | } | |
630 | free_pages((unsigned long)privptr->p_buff_ccw, | |
631 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
632 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
633 | free_pages((unsigned long)privptr->p_buff_read, | |
634 | (int)pages_to_order_of_mag( | |
635 | privptr->p_buff_read_num)); | |
636 | } | |
637 | else { | |
638 | p_buf=privptr->p_read_active_first; | |
639 | while (p_buf!=NULL) { | |
640 | free_pages((unsigned long)p_buf->p_buffer, | |
641 | (int)pages_to_order_of_mag( | |
642 | privptr->p_buff_pages_perread )); | |
643 | p_buf=p_buf->next; | |
644 | } | |
645 | } | |
646 | if (privptr->p_env->write_size < PAGE_SIZE ) { | |
647 | free_pages((unsigned long)privptr->p_buff_write, | |
648 | (int)pages_to_order_of_mag( | |
649 | privptr->p_buff_write_num)); | |
650 | } | |
651 | else { | |
652 | p_buf=privptr->p_write_active_first; | |
653 | while (p_buf!=NULL) { | |
654 | free_pages((unsigned long)p_buf->p_buffer, | |
655 | (int)pages_to_order_of_mag( | |
656 | privptr->p_buff_pages_perwrite )); | |
657 | p_buf=p_buf->next; | |
658 | } | |
659 | } | |
660 | privptr->buffs_alloc = 0; | |
661 | privptr->channel[READ].flag= 0x00; | |
662 | privptr->channel[WRITE].flag = 0x00; | |
663 | privptr->p_buff_ccw=NULL; | |
664 | privptr->p_buff_read=NULL; | |
665 | privptr->p_buff_write=NULL; | |
666 | claw_clear_busy(dev); | |
667 | #ifdef FUNCTRACE | |
668 | printk(KERN_INFO "%s:%s Exit on line %d, rc=EIO\n", | |
669 | dev->name,__FUNCTION__,__LINE__); | |
670 | #endif | |
671 | CLAW_DBF_TEXT(2,trace,"open EIO"); | |
672 | return -EIO; | |
673 | } | |
674 | ||
675 | /* Send SystemValidate command */ | |
676 | ||
677 | claw_clear_busy(dev); | |
678 | ||
679 | #ifdef FUNCTRACE | |
680 | printk(KERN_INFO "%s:%s Exit on line %d, rc=0\n", | |
681 | dev->name,__FUNCTION__,__LINE__); | |
682 | #endif | |
683 | CLAW_DBF_TEXT(4,trace,"openok"); | |
684 | return 0; | |
685 | } /* end of claw_open */ | |
686 | ||
687 | /*-------------------------------------------------------------------* | |
688 | * * | |
689 | * claw_irq_handler * | |
690 | * * | |
691 | *--------------------------------------------------------------------*/ | |
692 | static void | |
693 | claw_irq_handler(struct ccw_device *cdev, | |
694 | unsigned long intparm, struct irb *irb) | |
695 | { | |
696 | struct chbk *p_ch = NULL; | |
697 | struct claw_privbk *privptr = NULL; | |
698 | struct net_device *dev = NULL; | |
699 | struct claw_env *p_env; | |
700 | struct chbk *p_ch_r=NULL; | |
701 | ||
702 | ||
703 | #ifdef FUNCTRACE | |
704 | printk(KERN_INFO "%s enter \n",__FUNCTION__); | |
705 | #endif | |
706 | CLAW_DBF_TEXT(4,trace,"clawirq"); | |
707 | /* Bypass all 'unsolicited interrupts' */ | |
708 | if (!cdev->dev.driver_data) { | |
709 | printk(KERN_WARNING "claw: unsolicited interrupt for device:" | |
710 | "%s received c-%02x d-%02x\n", | |
711 | cdev->dev.bus_id,irb->scsw.cstat, irb->scsw.dstat); | |
712 | #ifdef FUNCTRACE | |
713 | printk(KERN_INFO "claw: %s() " | |
714 | "exit on line %d\n",__FUNCTION__,__LINE__); | |
715 | #endif | |
716 | CLAW_DBF_TEXT(2,trace,"badirq"); | |
717 | return; | |
718 | } | |
719 | privptr = (struct claw_privbk *)cdev->dev.driver_data; | |
720 | ||
721 | /* Try to extract channel from driver data. */ | |
722 | if (privptr->channel[READ].cdev == cdev) | |
723 | p_ch = &privptr->channel[READ]; | |
724 | else if (privptr->channel[WRITE].cdev == cdev) | |
725 | p_ch = &privptr->channel[WRITE]; | |
726 | else { | |
727 | printk(KERN_WARNING "claw: Can't determine channel for " | |
728 | "interrupt, device %s\n", cdev->dev.bus_id); | |
729 | CLAW_DBF_TEXT(2,trace,"badchan"); | |
730 | return; | |
731 | } | |
732 | CLAW_DBF_TEXT_(4,trace,"IRQCH=%d",p_ch->flag); | |
733 | ||
734 | dev = (struct net_device *) (p_ch->ndev); | |
735 | p_env=privptr->p_env; | |
736 | ||
737 | #ifdef IOTRACE | |
738 | printk(KERN_INFO "%s: interrupt for device: %04x " | |
739 | "received c-%02x d-%02x state-%02x\n", | |
740 | dev->name, p_ch->devno, irb->scsw.cstat, | |
741 | irb->scsw.dstat, p_ch->claw_state); | |
742 | #endif | |
743 | ||
744 | /* Copy interruption response block. */ | |
745 | memcpy(p_ch->irb, irb, sizeof(struct irb)); | |
746 | ||
747 | /* Check for good subchannel return code, otherwise error message */ | |
748 | if (irb->scsw.cstat && !(irb->scsw.cstat & SCHN_STAT_PCI)) { | |
749 | printk(KERN_INFO "%s: subchannel check for device: %04x -" | |
750 | " Sch Stat %02x Dev Stat %02x CPA - %04x\n", | |
751 | dev->name, p_ch->devno, | |
752 | irb->scsw.cstat, irb->scsw.dstat,irb->scsw.cpa); | |
753 | #ifdef IOTRACE | |
754 | dumpit((char *)irb,sizeof(struct irb)); | |
755 | dumpit((char *)(unsigned long)irb->scsw.cpa, | |
756 | sizeof(struct ccw1)); | |
757 | #endif | |
758 | #ifdef FUNCTRACE | |
759 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
760 | dev->name,__FUNCTION__,__LINE__); | |
761 | #endif | |
762 | CLAW_DBF_TEXT(2,trace,"chanchk"); | |
763 | /* return; */ | |
764 | } | |
765 | ||
766 | /* Check the reason-code of a unit check */ | |
767 | if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
768 | ccw_check_unit_check(p_ch, irb->ecw[0]); | |
769 | } | |
770 | ||
771 | /* State machine to bring the connection up, down and to restart */ | |
772 | p_ch->last_dstat = irb->scsw.dstat; | |
773 | ||
774 | switch (p_ch->claw_state) { | |
775 | case CLAW_STOP:/* HALT_IO by claw_release (halt sequence) */ | |
776 | #ifdef DEBUGMSG | |
777 | printk(KERN_INFO "%s: CLAW_STOP enter\n", dev->name); | |
778 | #endif | |
779 | if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
780 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
781 | (p_ch->irb->scsw.stctl == | |
782 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
783 | #ifdef FUNCTRACE | |
784 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
785 | dev->name,__FUNCTION__,__LINE__); | |
786 | #endif | |
787 | return; | |
788 | } | |
789 | wake_up(&p_ch->wait); /* wake up claw_release */ | |
790 | ||
791 | #ifdef DEBUGMSG | |
792 | printk(KERN_INFO "%s: CLAW_STOP exit\n", dev->name); | |
793 | #endif | |
794 | #ifdef FUNCTRACE | |
795 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
796 | dev->name,__FUNCTION__,__LINE__); | |
797 | #endif | |
798 | CLAW_DBF_TEXT(4,trace,"stop"); | |
799 | return; | |
800 | ||
801 | case CLAW_START_HALT_IO: /* HALT_IO issued by claw_open */ | |
802 | #ifdef DEBUGMSG | |
803 | printk(KERN_INFO "%s: process CLAW_STAT_HALT_IO\n", | |
804 | dev->name); | |
805 | #endif | |
806 | if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
807 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
808 | (p_ch->irb->scsw.stctl == | |
809 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
810 | #ifdef FUNCTRACE | |
811 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
812 | dev->name,__FUNCTION__,__LINE__); | |
813 | #endif | |
814 | CLAW_DBF_TEXT(4,trace,"haltio"); | |
815 | return; | |
816 | } | |
817 | if (p_ch->flag == CLAW_READ) { | |
818 | p_ch->claw_state = CLAW_START_READ; | |
819 | wake_up(&p_ch->wait); /* wake claw_open (READ)*/ | |
820 | } | |
821 | else | |
822 | if (p_ch->flag == CLAW_WRITE) { | |
823 | p_ch->claw_state = CLAW_START_WRITE; | |
824 | /* send SYSTEM_VALIDATE */ | |
825 | claw_strt_read(dev, LOCK_NO); | |
826 | claw_send_control(dev, | |
827 | SYSTEM_VALIDATE_REQUEST, | |
828 | 0, 0, 0, | |
829 | p_env->host_name, | |
830 | p_env->adapter_name ); | |
831 | } else { | |
832 | printk(KERN_WARNING "claw: unsolicited " | |
833 | "interrupt for device:" | |
834 | "%s received c-%02x d-%02x\n", | |
835 | cdev->dev.bus_id, | |
836 | irb->scsw.cstat, | |
837 | irb->scsw.dstat); | |
838 | return; | |
839 | } | |
840 | #ifdef DEBUGMSG | |
841 | printk(KERN_INFO "%s: process CLAW_STAT_HALT_IO exit\n", | |
842 | dev->name); | |
843 | #endif | |
844 | #ifdef FUNCTRACE | |
845 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
846 | dev->name,__FUNCTION__,__LINE__); | |
847 | #endif | |
848 | CLAW_DBF_TEXT(4,trace,"haltio"); | |
849 | return; | |
850 | case CLAW_START_READ: | |
851 | CLAW_DBF_TEXT(4,trace,"ReadIRQ"); | |
852 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
853 | clear_bit(0, (void *)&p_ch->IO_active); | |
854 | if ((p_ch->irb->ecw[0] & 0x41) == 0x41 || | |
855 | (p_ch->irb->ecw[0] & 0x40) == 0x40 || | |
856 | (p_ch->irb->ecw[0]) == 0) | |
857 | { | |
858 | privptr->stats.rx_errors++; | |
859 | printk(KERN_INFO "%s: Restart is " | |
860 | "required after remote " | |
861 | "side recovers \n", | |
862 | dev->name); | |
863 | } | |
864 | #ifdef FUNCTRACE | |
865 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
866 | dev->name,__FUNCTION__,__LINE__); | |
867 | #endif | |
868 | CLAW_DBF_TEXT(4,trace,"notrdy"); | |
869 | return; | |
870 | } | |
871 | if ((p_ch->irb->scsw.cstat & SCHN_STAT_PCI) && | |
872 | (p_ch->irb->scsw.dstat==0)) { | |
873 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
874 | (void *)&p_ch->flag_a) == 0) { | |
875 | tasklet_schedule(&p_ch->tasklet); | |
876 | } | |
877 | else { | |
878 | CLAW_DBF_TEXT(4,trace,"PCINoBH"); | |
879 | } | |
880 | #ifdef FUNCTRACE | |
881 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
882 | dev->name,__FUNCTION__,__LINE__); | |
883 | #endif | |
884 | CLAW_DBF_TEXT(4,trace,"PCI_read"); | |
885 | return; | |
886 | } | |
887 | if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
888 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
889 | (p_ch->irb->scsw.stctl == | |
890 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
891 | #ifdef FUNCTRACE | |
892 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
893 | dev->name,__FUNCTION__,__LINE__); | |
894 | #endif | |
895 | CLAW_DBF_TEXT(4,trace,"SPend_rd"); | |
896 | return; | |
897 | } | |
898 | clear_bit(0, (void *)&p_ch->IO_active); | |
899 | claw_clearbit_busy(TB_RETRY,dev); | |
900 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
901 | (void *)&p_ch->flag_a) == 0) { | |
902 | tasklet_schedule(&p_ch->tasklet); | |
903 | } | |
904 | else { | |
905 | CLAW_DBF_TEXT(4,trace,"RdBHAct"); | |
906 | } | |
907 | ||
908 | #ifdef DEBUGMSG | |
909 | printk(KERN_INFO "%s: process CLAW_START_READ exit\n", | |
910 | dev->name); | |
911 | #endif | |
912 | #ifdef FUNCTRACE | |
913 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
914 | dev->name,__FUNCTION__,__LINE__); | |
915 | #endif | |
916 | CLAW_DBF_TEXT(4,trace,"RdIRQXit"); | |
917 | return; | |
918 | case CLAW_START_WRITE: | |
919 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
920 | printk(KERN_INFO "%s: Unit Check Occured in " | |
921 | "write channel\n",dev->name); | |
922 | clear_bit(0, (void *)&p_ch->IO_active); | |
923 | if (p_ch->irb->ecw[0] & 0x80 ) { | |
924 | printk(KERN_INFO "%s: Resetting Event " | |
925 | "occurred:\n",dev->name); | |
926 | init_timer(&p_ch->timer); | |
927 | p_ch->timer.function = | |
928 | (void *)claw_write_retry; | |
929 | p_ch->timer.data = (unsigned long)p_ch; | |
930 | p_ch->timer.expires = jiffies + 10*HZ; | |
931 | add_timer(&p_ch->timer); | |
932 | printk(KERN_INFO "%s: write connection " | |
933 | "restarting\n",dev->name); | |
934 | } | |
935 | #ifdef FUNCTRACE | |
936 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
937 | dev->name,__FUNCTION__,__LINE__); | |
938 | #endif | |
939 | CLAW_DBF_TEXT(4,trace,"rstrtwrt"); | |
940 | return; | |
941 | } | |
942 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) { | |
943 | clear_bit(0, (void *)&p_ch->IO_active); | |
944 | printk(KERN_INFO "%s: Unit Exception " | |
945 | "Occured in write channel\n", | |
946 | dev->name); | |
947 | } | |
948 | if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
949 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
950 | (p_ch->irb->scsw.stctl == | |
951 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
952 | #ifdef FUNCTRACE | |
953 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
954 | dev->name,__FUNCTION__,__LINE__); | |
955 | #endif | |
956 | CLAW_DBF_TEXT(4,trace,"writeUE"); | |
957 | return; | |
958 | } | |
959 | clear_bit(0, (void *)&p_ch->IO_active); | |
960 | if (claw_test_and_setbit_busy(TB_TX,dev)==0) { | |
961 | claw_write_next(p_ch); | |
962 | claw_clearbit_busy(TB_TX,dev); | |
963 | claw_clear_busy(dev); | |
964 | } | |
965 | p_ch_r=(struct chbk *)&privptr->channel[READ]; | |
966 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
967 | (void *)&p_ch_r->flag_a) == 0) { | |
968 | tasklet_schedule(&p_ch_r->tasklet); | |
969 | } | |
970 | ||
971 | #ifdef DEBUGMSG | |
972 | printk(KERN_INFO "%s: process CLAW_START_WRITE exit\n", | |
973 | dev->name); | |
974 | #endif | |
975 | #ifdef FUNCTRACE | |
976 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
977 | dev->name,__FUNCTION__,__LINE__); | |
978 | #endif | |
979 | CLAW_DBF_TEXT(4,trace,"StWtExit"); | |
980 | return; | |
981 | default: | |
982 | printk(KERN_WARNING "%s: wrong selection code - irq " | |
983 | "state=%d\n",dev->name,p_ch->claw_state); | |
984 | #ifdef FUNCTRACE | |
985 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
986 | dev->name,__FUNCTION__,__LINE__); | |
987 | #endif | |
988 | CLAW_DBF_TEXT(2,trace,"badIRQ"); | |
989 | return; | |
990 | } | |
991 | ||
992 | } /* end of claw_irq_handler */ | |
993 | ||
994 | ||
995 | /*-------------------------------------------------------------------* | |
996 | * claw_irq_tasklet * | |
997 | * * | |
998 | *--------------------------------------------------------------------*/ | |
999 | static void | |
1000 | claw_irq_tasklet ( unsigned long data ) | |
1001 | { | |
1002 | struct chbk * p_ch; | |
1003 | struct net_device *dev; | |
1004 | struct claw_privbk * privptr; | |
1005 | ||
1006 | p_ch = (struct chbk *) data; | |
1007 | dev = (struct net_device *)p_ch->ndev; | |
1008 | #ifdef FUNCTRACE | |
1009 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1010 | #endif | |
1011 | #ifdef DEBUGMSG | |
1012 | printk(KERN_INFO "%s: variable p_ch =\n",dev->name); | |
1013 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1014 | #endif | |
1015 | CLAW_DBF_TEXT(4,trace,"IRQtask"); | |
1016 | ||
1017 | privptr = (struct claw_privbk *) dev->priv; | |
1018 | ||
1019 | #ifdef DEBUGMSG | |
1020 | printk(KERN_INFO "%s: bh routine - state-%02x\n" , | |
1021 | dev->name, p_ch->claw_state); | |
1022 | #endif | |
1023 | ||
1024 | unpack_read(dev); | |
1025 | clear_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a); | |
1026 | CLAW_DBF_TEXT(4,trace,"TskletXt"); | |
1027 | #ifdef FUNCTRACE | |
1028 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1029 | dev->name,__FUNCTION__,__LINE__); | |
1030 | #endif | |
1031 | return; | |
1032 | } /* end of claw_irq_bh */ | |
1033 | ||
1034 | /*-------------------------------------------------------------------* | |
1035 | * claw_release * | |
1036 | * * | |
1037 | *--------------------------------------------------------------------*/ | |
1038 | static int | |
1039 | claw_release(struct net_device *dev) | |
1040 | { | |
1041 | int rc; | |
1042 | int i; | |
1043 | unsigned long saveflags; | |
1044 | unsigned long parm; | |
1045 | struct claw_privbk *privptr; | |
1046 | DECLARE_WAITQUEUE(wait, current); | |
1047 | struct ccwbk* p_this_ccw; | |
1048 | struct ccwbk* p_buf; | |
1049 | ||
1050 | if (!dev) | |
1051 | return 0; | |
1052 | privptr = (struct claw_privbk *) dev->priv; | |
1053 | if (!privptr) | |
1054 | return 0; | |
1055 | #ifdef FUNCTRACE | |
1056 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1057 | #endif | |
1058 | CLAW_DBF_TEXT(4,trace,"release"); | |
1059 | #ifdef DEBUGMSG | |
1060 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1061 | dumpit((char *) dev, sizeof(struct net_device)); | |
1062 | printk(KERN_INFO "Priv Buffalloc %d\n",privptr->buffs_alloc); | |
1063 | printk(KERN_INFO "Priv p_buff_ccw = %p\n",&privptr->p_buff_ccw); | |
1064 | #endif | |
1065 | privptr->release_pend=1; | |
1066 | claw_setbit_busy(TB_STOP,dev); | |
1067 | for ( i = 1; i >=0 ; i--) { | |
1068 | spin_lock_irqsave( | |
1069 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
1070 | /* del_timer(&privptr->channel[READ].timer); */ | |
1071 | privptr->channel[i].claw_state = CLAW_STOP; | |
1072 | privptr->channel[i].IO_active = 0; | |
1073 | parm = (unsigned long) &privptr->channel[i]; | |
1074 | if (i == WRITE) | |
1075 | claw_purge_skb_queue( | |
1076 | &privptr->channel[WRITE].collect_queue); | |
1077 | rc = ccw_device_halt (privptr->channel[i].cdev, parm); | |
1078 | if (privptr->system_validate_comp==0x00) /* never opened? */ | |
1079 | init_waitqueue_head(&privptr->channel[i].wait); | |
1080 | add_wait_queue(&privptr->channel[i].wait, &wait); | |
1081 | set_current_state(TASK_INTERRUPTIBLE); | |
1082 | spin_unlock_irqrestore( | |
1083 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
1084 | schedule(); | |
1085 | set_current_state(TASK_RUNNING); | |
1086 | remove_wait_queue(&privptr->channel[i].wait, &wait); | |
1087 | if (rc != 0) { | |
1088 | ccw_check_return_code(privptr->channel[i].cdev, rc); | |
1089 | } | |
1090 | } | |
1091 | if (privptr->pk_skb != NULL) { | |
8e84c801 | 1092 | dev_kfree_skb_any(privptr->pk_skb); |
1da177e4 LT |
1093 | privptr->pk_skb = NULL; |
1094 | } | |
1095 | if(privptr->buffs_alloc != 1) { | |
1096 | #ifdef FUNCTRACE | |
1097 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1098 | dev->name,__FUNCTION__,__LINE__); | |
1099 | #endif | |
1100 | CLAW_DBF_TEXT(4,trace,"none2fre"); | |
1101 | return 0; | |
1102 | } | |
1103 | CLAW_DBF_TEXT(4,trace,"freebufs"); | |
1104 | if (privptr->p_buff_ccw != NULL) { | |
1105 | free_pages((unsigned long)privptr->p_buff_ccw, | |
1106 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
1107 | } | |
1108 | CLAW_DBF_TEXT(4,trace,"freeread"); | |
1109 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
1110 | if (privptr->p_buff_read != NULL) { | |
1111 | free_pages((unsigned long)privptr->p_buff_read, | |
1112 | (int)pages_to_order_of_mag(privptr->p_buff_read_num)); | |
1113 | } | |
1114 | } | |
1115 | else { | |
1116 | p_buf=privptr->p_read_active_first; | |
1117 | while (p_buf!=NULL) { | |
1118 | free_pages((unsigned long)p_buf->p_buffer, | |
1119 | (int)pages_to_order_of_mag( | |
1120 | privptr->p_buff_pages_perread )); | |
1121 | p_buf=p_buf->next; | |
1122 | } | |
1123 | } | |
1124 | CLAW_DBF_TEXT(4,trace,"freewrit"); | |
1125 | if (privptr->p_env->write_size < PAGE_SIZE ) { | |
1126 | free_pages((unsigned long)privptr->p_buff_write, | |
1127 | (int)pages_to_order_of_mag(privptr->p_buff_write_num)); | |
1128 | } | |
1129 | else { | |
1130 | p_buf=privptr->p_write_active_first; | |
1131 | while (p_buf!=NULL) { | |
1132 | free_pages((unsigned long)p_buf->p_buffer, | |
1133 | (int)pages_to_order_of_mag( | |
1134 | privptr->p_buff_pages_perwrite )); | |
1135 | p_buf=p_buf->next; | |
1136 | } | |
1137 | } | |
1138 | CLAW_DBF_TEXT(4,trace,"clearptr"); | |
1139 | privptr->buffs_alloc = 0; | |
1140 | privptr->p_buff_ccw=NULL; | |
1141 | privptr->p_buff_read=NULL; | |
1142 | privptr->p_buff_write=NULL; | |
1143 | privptr->system_validate_comp=0; | |
1144 | privptr->release_pend=0; | |
1145 | /* Remove any writes that were pending and reset all reads */ | |
1146 | p_this_ccw=privptr->p_read_active_first; | |
1147 | while (p_this_ccw!=NULL) { | |
1148 | p_this_ccw->header.length=0xffff; | |
1149 | p_this_ccw->header.opcode=0xff; | |
1150 | p_this_ccw->header.flag=0x00; | |
1151 | p_this_ccw=p_this_ccw->next; | |
1152 | } | |
1153 | ||
1154 | while (privptr->p_write_active_first!=NULL) { | |
1155 | p_this_ccw=privptr->p_write_active_first; | |
1156 | p_this_ccw->header.flag=CLAW_PENDING; | |
1157 | privptr->p_write_active_first=p_this_ccw->next; | |
1158 | p_this_ccw->next=privptr->p_write_free_chain; | |
1159 | privptr->p_write_free_chain=p_this_ccw; | |
1160 | ++privptr->write_free_count; | |
1161 | } | |
1162 | privptr->p_write_active_last=NULL; | |
1163 | privptr->mtc_logical_link = -1; | |
1164 | privptr->mtc_skipping = 1; | |
1165 | privptr->mtc_offset=0; | |
1166 | ||
1167 | if (((privptr->channel[READ].last_dstat | | |
1168 | privptr->channel[WRITE].last_dstat) & | |
1169 | ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) { | |
1170 | printk(KERN_WARNING "%s: channel problems during close - " | |
1171 | "read: %02x - write: %02x\n", | |
1172 | dev->name, | |
1173 | privptr->channel[READ].last_dstat, | |
1174 | privptr->channel[WRITE].last_dstat); | |
1175 | CLAW_DBF_TEXT(2,trace,"badclose"); | |
1176 | } | |
1177 | #ifdef FUNCTRACE | |
1178 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1179 | dev->name,__FUNCTION__,__LINE__); | |
1180 | #endif | |
1181 | CLAW_DBF_TEXT(4,trace,"rlsexit"); | |
1182 | return 0; | |
1183 | } /* end of claw_release */ | |
1184 | ||
1185 | ||
1186 | ||
1187 | /*-------------------------------------------------------------------* | |
1188 | * claw_write_retry * | |
1189 | * * | |
1190 | *--------------------------------------------------------------------*/ | |
1191 | ||
1192 | static void | |
1193 | claw_write_retry ( struct chbk *p_ch ) | |
1194 | { | |
1195 | ||
1196 | struct net_device *dev=p_ch->ndev; | |
1197 | ||
1198 | ||
1199 | #ifdef FUNCTRACE | |
1200 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
1201 | printk(KERN_INFO "claw: variable p_ch =\n"); | |
1202 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1203 | #endif | |
1204 | CLAW_DBF_TEXT(4,trace,"w_retry"); | |
1205 | if (p_ch->claw_state == CLAW_STOP) { | |
1206 | #ifdef FUNCTRACE | |
1207 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1208 | dev->name,__FUNCTION__,__LINE__); | |
1209 | #endif | |
1210 | return; | |
1211 | } | |
1212 | #ifdef DEBUGMSG | |
1213 | printk( KERN_INFO "%s:%s state-%02x\n" , | |
1214 | dev->name, | |
1215 | __FUNCTION__, | |
1216 | p_ch->claw_state); | |
1217 | #endif | |
1218 | claw_strt_out_IO( dev ); | |
1219 | #ifdef FUNCTRACE | |
1220 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1221 | dev->name,__FUNCTION__,__LINE__); | |
1222 | #endif | |
1223 | CLAW_DBF_TEXT(4,trace,"rtry_xit"); | |
1224 | return; | |
1225 | } /* end of claw_write_retry */ | |
1226 | ||
1227 | ||
1228 | /*-------------------------------------------------------------------* | |
1229 | * claw_write_next * | |
1230 | * * | |
1231 | *--------------------------------------------------------------------*/ | |
1232 | ||
1233 | static void | |
1234 | claw_write_next ( struct chbk * p_ch ) | |
1235 | { | |
1236 | ||
1237 | struct net_device *dev; | |
1238 | struct claw_privbk *privptr=NULL; | |
1239 | struct sk_buff *pk_skb; | |
1240 | int rc; | |
1241 | ||
1242 | #ifdef FUNCTRACE | |
1243 | printk(KERN_INFO "%s:%s Enter \n",p_ch->ndev->name,__FUNCTION__); | |
1244 | printk(KERN_INFO "%s: variable p_ch =\n",p_ch->ndev->name); | |
1245 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1246 | #endif | |
1247 | CLAW_DBF_TEXT(4,trace,"claw_wrt"); | |
1248 | if (p_ch->claw_state == CLAW_STOP) | |
1249 | return; | |
1250 | dev = (struct net_device *) p_ch->ndev; | |
1251 | privptr = (struct claw_privbk *) dev->priv; | |
1252 | claw_free_wrt_buf( dev ); | |
1253 | if ((privptr->write_free_count > 0) && | |
b03efcfb | 1254 | !skb_queue_empty(&p_ch->collect_queue)) { |
1da177e4 LT |
1255 | pk_skb = claw_pack_skb(privptr); |
1256 | while (pk_skb != NULL) { | |
1257 | rc = claw_hw_tx( pk_skb, dev,1); | |
1258 | if (privptr->write_free_count > 0) { | |
1259 | pk_skb = claw_pack_skb(privptr); | |
1260 | } else | |
1261 | pk_skb = NULL; | |
1262 | } | |
1263 | } | |
1264 | if (privptr->p_write_active_first!=NULL) { | |
1265 | claw_strt_out_IO(dev); | |
1266 | } | |
1267 | ||
1268 | #ifdef FUNCTRACE | |
1269 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1270 | dev->name,__FUNCTION__,__LINE__); | |
1271 | #endif | |
1272 | return; | |
1273 | } /* end of claw_write_next */ | |
1274 | ||
1275 | /*-------------------------------------------------------------------* | |
1276 | * * | |
1277 | * claw_timer * | |
1278 | *--------------------------------------------------------------------*/ | |
1279 | ||
1280 | static void | |
1281 | claw_timer ( struct chbk * p_ch ) | |
1282 | { | |
1283 | #ifdef FUNCTRACE | |
1284 | printk(KERN_INFO "%s:%s Entry\n",p_ch->ndev->name,__FUNCTION__); | |
1285 | printk(KERN_INFO "%s: variable p_ch =\n",p_ch->ndev->name); | |
1286 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1287 | #endif | |
1288 | CLAW_DBF_TEXT(4,trace,"timer"); | |
1289 | p_ch->flag |= CLAW_TIMER; | |
1290 | wake_up(&p_ch->wait); | |
1291 | #ifdef FUNCTRACE | |
1292 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1293 | p_ch->ndev->name,__FUNCTION__,__LINE__); | |
1294 | #endif | |
1295 | return; | |
1296 | } /* end of claw_timer */ | |
1297 | ||
1298 | ||
1299 | /* | |
1300 | * | |
1301 | * functions | |
1302 | */ | |
1303 | ||
1304 | ||
1305 | /*-------------------------------------------------------------------* | |
1306 | * * | |
1307 | * pages_to_order_of_mag * | |
1308 | * * | |
1309 | * takes a number of pages from 1 to 512 and returns the * | |
1310 | * log(num_pages)/log(2) get_free_pages() needs a base 2 order * | |
1311 | * of magnitude get_free_pages() has an upper order of 9 * | |
1312 | *--------------------------------------------------------------------*/ | |
1313 | ||
1314 | static int inline | |
1315 | pages_to_order_of_mag(int num_of_pages) | |
1316 | { | |
1317 | int order_of_mag=1; /* assume 2 pages */ | |
1318 | int nump=2; | |
1319 | #ifdef FUNCTRACE | |
1320 | printk(KERN_INFO "%s Enter pages = %d \n",__FUNCTION__,num_of_pages); | |
1321 | #endif | |
1322 | CLAW_DBF_TEXT_(5,trace,"pages%d",num_of_pages); | |
1323 | if (num_of_pages == 1) {return 0; } /* magnitude of 0 = 1 page */ | |
1324 | /* 512 pages = 2Meg on 4k page systems */ | |
1325 | if (num_of_pages >= 512) {return 9; } | |
1326 | /* we have two or more pages order is at least 1 */ | |
1327 | for (nump=2 ;nump <= 512;nump*=2) { | |
1328 | if (num_of_pages <= nump) | |
1329 | break; | |
1330 | order_of_mag +=1; | |
1331 | } | |
1332 | if (order_of_mag > 9) { order_of_mag = 9; } /* I know it's paranoid */ | |
1333 | #ifdef FUNCTRACE | |
1334 | printk(KERN_INFO "%s Exit on line %d, order = %d\n", | |
1335 | __FUNCTION__,__LINE__, order_of_mag); | |
1336 | #endif | |
1337 | CLAW_DBF_TEXT_(5,trace,"mag%d",order_of_mag); | |
1338 | return order_of_mag; | |
1339 | } | |
1340 | ||
1341 | /*-------------------------------------------------------------------* | |
1342 | * * | |
1343 | * add_claw_reads * | |
1344 | * * | |
1345 | *--------------------------------------------------------------------*/ | |
1346 | static int | |
1347 | add_claw_reads(struct net_device *dev, struct ccwbk* p_first, | |
1348 | struct ccwbk* p_last) | |
1349 | { | |
1350 | struct claw_privbk *privptr; | |
1351 | struct ccw1 temp_ccw; | |
1352 | struct endccw * p_end; | |
1353 | #ifdef IOTRACE | |
1354 | struct ccwbk* p_buf; | |
1355 | #endif | |
1356 | #ifdef FUNCTRACE | |
1357 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1358 | #endif | |
1359 | #ifdef DEBUGMSG | |
1360 | printk(KERN_INFO "dev\n"); | |
1361 | dumpit((char *) dev, sizeof(struct net_device)); | |
1362 | printk(KERN_INFO "p_first\n"); | |
1363 | dumpit((char *) p_first, sizeof(struct ccwbk)); | |
1364 | printk(KERN_INFO "p_last\n"); | |
1365 | dumpit((char *) p_last, sizeof(struct ccwbk)); | |
1366 | #endif | |
1367 | CLAW_DBF_TEXT(4,trace,"addreads"); | |
1368 | privptr = dev->priv; | |
1369 | p_end = privptr->p_end_ccw; | |
1370 | ||
1371 | /* first CCW and last CCW contains a new set of read channel programs | |
1372 | * to apend the running channel programs | |
1373 | */ | |
1374 | if ( p_first==NULL) { | |
1375 | #ifdef FUNCTRACE | |
1376 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1377 | dev->name,__FUNCTION__,__LINE__); | |
1378 | #endif | |
1379 | CLAW_DBF_TEXT(4,trace,"addexit"); | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | /* set up ending CCW sequence for this segment */ | |
1384 | if (p_end->read1) { | |
1385 | p_end->read1=0x00; /* second ending CCW is now active */ | |
1386 | /* reset ending CCWs and setup TIC CCWs */ | |
1387 | p_end->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1388 | p_end->read2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1389 | p_last->r_TIC_1.cda =(__u32)__pa(&p_end->read2_nop1); | |
1390 | p_last->r_TIC_2.cda =(__u32)__pa(&p_end->read2_nop1); | |
1391 | p_end->read2_nop2.cda=0; | |
1392 | p_end->read2_nop2.count=1; | |
1393 | } | |
1394 | else { | |
1395 | p_end->read1=0x01; /* first ending CCW is now active */ | |
1396 | /* reset ending CCWs and setup TIC CCWs */ | |
1397 | p_end->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1398 | p_end->read1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1399 | p_last->r_TIC_1.cda = (__u32)__pa(&p_end->read1_nop1); | |
1400 | p_last->r_TIC_2.cda = (__u32)__pa(&p_end->read1_nop1); | |
1401 | p_end->read1_nop2.cda=0; | |
1402 | p_end->read1_nop2.count=1; | |
1403 | } | |
1404 | ||
1405 | if ( privptr-> p_read_active_first ==NULL ) { | |
1406 | #ifdef DEBUGMSG | |
80682fa9 | 1407 | printk(KERN_INFO "%s:%s p_read_active_first == NULL \n", |
1da177e4 LT |
1408 | dev->name,__FUNCTION__); |
1409 | printk(KERN_INFO "%s:%s Read active first/last changed \n", | |
1410 | dev->name,__FUNCTION__); | |
1411 | #endif | |
1412 | privptr-> p_read_active_first= p_first; /* set new first */ | |
1413 | privptr-> p_read_active_last = p_last; /* set new last */ | |
1414 | } | |
1415 | else { | |
1416 | ||
1417 | #ifdef DEBUGMSG | |
1418 | printk(KERN_INFO "%s:%s Read in progress \n", | |
1419 | dev->name,__FUNCTION__); | |
1420 | #endif | |
1421 | /* set up TIC ccw */ | |
1422 | temp_ccw.cda= (__u32)__pa(&p_first->read); | |
1423 | temp_ccw.count=0; | |
1424 | temp_ccw.flags=0; | |
1425 | temp_ccw.cmd_code = CCW_CLAW_CMD_TIC; | |
1426 | ||
1427 | ||
1428 | if (p_end->read1) { | |
1429 | ||
1430 | /* first set of CCW's is chained to the new read */ | |
1431 | /* chain, so the second set is chained to the active chain. */ | |
1432 | /* Therefore modify the second set to point to the new */ | |
1433 | /* read chain set up TIC CCWs */ | |
1434 | /* make sure we update the CCW so channel doesn't fetch it */ | |
1435 | /* when it's only half done */ | |
1436 | memcpy( &p_end->read2_nop2, &temp_ccw , | |
1437 | sizeof(struct ccw1)); | |
1438 | privptr->p_read_active_last->r_TIC_1.cda= | |
1439 | (__u32)__pa(&p_first->read); | |
1440 | privptr->p_read_active_last->r_TIC_2.cda= | |
1441 | (__u32)__pa(&p_first->read); | |
1442 | } | |
1443 | else { | |
1444 | /* make sure we update the CCW so channel doesn't */ | |
1445 | /* fetch it when it is only half done */ | |
1446 | memcpy( &p_end->read1_nop2, &temp_ccw , | |
1447 | sizeof(struct ccw1)); | |
1448 | privptr->p_read_active_last->r_TIC_1.cda= | |
1449 | (__u32)__pa(&p_first->read); | |
1450 | privptr->p_read_active_last->r_TIC_2.cda= | |
1451 | (__u32)__pa(&p_first->read); | |
1452 | } | |
1453 | /* chain in new set of blocks */ | |
1454 | privptr->p_read_active_last->next = p_first; | |
1455 | privptr->p_read_active_last=p_last; | |
1456 | } /* end of if ( privptr-> p_read_active_first ==NULL) */ | |
1457 | #ifdef IOTRACE | |
1458 | printk(KERN_INFO "%s:%s dump p_last CCW BK \n",dev->name,__FUNCTION__); | |
1459 | dumpit((char *)p_last, sizeof(struct ccwbk)); | |
1460 | printk(KERN_INFO "%s:%s dump p_end CCW BK \n",dev->name,__FUNCTION__); | |
1461 | dumpit((char *)p_end, sizeof(struct endccw)); | |
1462 | ||
1463 | printk(KERN_INFO "%s:%s dump p_first CCW BK \n",dev->name,__FUNCTION__); | |
1464 | dumpit((char *)p_first, sizeof(struct ccwbk)); | |
1465 | printk(KERN_INFO "%s:%s Dump Active CCW chain \n", | |
1466 | dev->name,__FUNCTION__); | |
1467 | p_buf=privptr->p_read_active_first; | |
1468 | while (p_buf!=NULL) { | |
1469 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
1470 | p_buf=p_buf->next; | |
1471 | } | |
1472 | #endif | |
1473 | #ifdef FUNCTRACE | |
1474 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1475 | dev->name,__FUNCTION__,__LINE__); | |
1476 | #endif | |
1477 | CLAW_DBF_TEXT(4,trace,"addexit"); | |
1478 | return 0; | |
1479 | } /* end of add_claw_reads */ | |
1480 | ||
1481 | /*-------------------------------------------------------------------* | |
1482 | * ccw_check_return_code * | |
1483 | * * | |
1484 | *-------------------------------------------------------------------*/ | |
1485 | ||
1486 | static void inline | |
1487 | ccw_check_return_code(struct ccw_device *cdev, int return_code) | |
1488 | { | |
1489 | #ifdef FUNCTRACE | |
1490 | printk(KERN_INFO "%s: %s() > enter \n", | |
1491 | cdev->dev.bus_id,__FUNCTION__); | |
1492 | #endif | |
1493 | CLAW_DBF_TEXT(4,trace,"ccwret"); | |
1494 | #ifdef DEBUGMSG | |
1495 | printk(KERN_INFO "variable cdev =\n"); | |
1496 | dumpit((char *) cdev, sizeof(struct ccw_device)); | |
1497 | printk(KERN_INFO "variable return_code = %d\n",return_code); | |
1498 | #endif | |
1499 | if (return_code != 0) { | |
1500 | switch (return_code) { | |
1501 | case -EBUSY: | |
1502 | printk(KERN_INFO "%s: Busy !\n", | |
1503 | cdev->dev.bus_id); | |
1504 | break; | |
1505 | case -ENODEV: | |
1506 | printk(KERN_EMERG "%s: Missing device called " | |
1507 | "for IO ENODEV\n", cdev->dev.bus_id); | |
1508 | break; | |
1509 | case -EIO: | |
1510 | printk(KERN_EMERG "%s: Status pending... EIO \n", | |
1511 | cdev->dev.bus_id); | |
1512 | break; | |
1513 | case -EINVAL: | |
1514 | printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n", | |
1515 | cdev->dev.bus_id); | |
1516 | break; | |
1517 | default: | |
1518 | printk(KERN_EMERG "%s: Unknown error in " | |
1519 | "Do_IO %d\n",cdev->dev.bus_id, return_code); | |
1520 | } | |
1521 | } | |
1522 | #ifdef FUNCTRACE | |
1523 | printk(KERN_INFO "%s: %s() > exit on line %d\n", | |
1524 | cdev->dev.bus_id,__FUNCTION__,__LINE__); | |
1525 | #endif | |
1526 | CLAW_DBF_TEXT(4,trace,"ccwret"); | |
1527 | } /* end of ccw_check_return_code */ | |
1528 | ||
1529 | /*-------------------------------------------------------------------* | |
1530 | * ccw_check_unit_check * | |
1531 | *--------------------------------------------------------------------*/ | |
1532 | ||
1533 | static void inline | |
1534 | ccw_check_unit_check(struct chbk * p_ch, unsigned char sense ) | |
1535 | { | |
1536 | struct net_device *dev = p_ch->ndev; | |
1537 | ||
1538 | #ifdef FUNCTRACE | |
1539 | printk(KERN_INFO "%s: %s() > enter\n",dev->name,__FUNCTION__); | |
1540 | #endif | |
1541 | #ifdef DEBUGMSG | |
1542 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1543 | dumpit((char *)dev, sizeof(struct net_device)); | |
1544 | printk(KERN_INFO "%s: variable sense =\n",dev->name); | |
1545 | dumpit((char *)&sense, 2); | |
1546 | #endif | |
1547 | CLAW_DBF_TEXT(4,trace,"unitchek"); | |
1548 | ||
1549 | printk(KERN_INFO "%s: Unit Check with sense byte:0x%04x\n", | |
1550 | dev->name, sense); | |
1551 | ||
1552 | if (sense & 0x40) { | |
1553 | if (sense & 0x01) { | |
1554 | printk(KERN_WARNING "%s: Interface disconnect or " | |
1555 | "Selective reset " | |
1556 | "occurred (remote side)\n", dev->name); | |
1557 | } | |
1558 | else { | |
1559 | printk(KERN_WARNING "%s: System reset occured" | |
1560 | " (remote side)\n", dev->name); | |
1561 | } | |
1562 | } | |
1563 | else if (sense & 0x20) { | |
1564 | if (sense & 0x04) { | |
1565 | printk(KERN_WARNING "%s: Data-streaming " | |
1566 | "timeout)\n", dev->name); | |
1567 | } | |
1568 | else { | |
1569 | printk(KERN_WARNING "%s: Data-transfer parity" | |
1570 | " error\n", dev->name); | |
1571 | } | |
1572 | } | |
1573 | else if (sense & 0x10) { | |
1574 | if (sense & 0x20) { | |
1575 | printk(KERN_WARNING "%s: Hardware malfunction " | |
1576 | "(remote side)\n", dev->name); | |
1577 | } | |
1578 | else { | |
1579 | printk(KERN_WARNING "%s: read-data parity error " | |
1580 | "(remote side)\n", dev->name); | |
1581 | } | |
1582 | } | |
1583 | ||
1584 | #ifdef FUNCTRACE | |
1585 | printk(KERN_INFO "%s: %s() exit on line %d\n", | |
1586 | dev->name,__FUNCTION__,__LINE__); | |
1587 | #endif | |
1588 | } /* end of ccw_check_unit_check */ | |
1589 | ||
1590 | ||
1591 | ||
1592 | /*-------------------------------------------------------------------* | |
1593 | * Dump buffer format * | |
1594 | * * | |
1595 | *--------------------------------------------------------------------*/ | |
1596 | #ifdef DEBUG | |
1597 | static void | |
1598 | dumpit(char* buf, int len) | |
1599 | { | |
1600 | ||
1601 | __u32 ct, sw, rm, dup; | |
1602 | char *ptr, *rptr; | |
1603 | char tbuf[82], tdup[82]; | |
347a8dc3 | 1604 | #if (CONFIG_64BIT) |
1da177e4 LT |
1605 | char addr[22]; |
1606 | #else | |
1607 | char addr[12]; | |
1608 | #endif | |
1609 | char boff[12]; | |
1610 | char bhex[82], duphex[82]; | |
1611 | char basc[40]; | |
1612 | ||
1613 | sw = 0; | |
1614 | rptr =ptr=buf; | |
1615 | rm = 16; | |
1616 | duphex[0] = 0x00; | |
1617 | dup = 0; | |
1618 | for ( ct=0; ct < len; ct++, ptr++, rptr++ ) { | |
1619 | if (sw == 0) { | |
347a8dc3 | 1620 | #if (CONFIG_64BIT) |
1da177e4 LT |
1621 | sprintf(addr, "%16.16lX",(unsigned long)rptr); |
1622 | #else | |
1623 | sprintf(addr, "%8.8X",(__u32)rptr); | |
1624 | #endif | |
1625 | sprintf(boff, "%4.4X", (__u32)ct); | |
1626 | bhex[0] = '\0'; | |
1627 | basc[0] = '\0'; | |
1628 | } | |
1629 | if ((sw == 4) || (sw == 12)) { | |
1630 | strcat(bhex, " "); | |
1631 | } | |
1632 | if (sw == 8) { | |
1633 | strcat(bhex, " "); | |
1634 | } | |
347a8dc3 | 1635 | #if (CONFIG_64BIT) |
1da177e4 LT |
1636 | sprintf(tbuf,"%2.2lX", (unsigned long)*ptr); |
1637 | #else | |
1638 | sprintf(tbuf,"%2.2X", (__u32)*ptr); | |
1639 | #endif | |
1640 | tbuf[2] = '\0'; | |
1641 | strcat(bhex, tbuf); | |
1642 | if ((0!=isprint(*ptr)) && (*ptr >= 0x20)) { | |
1643 | basc[sw] = *ptr; | |
1644 | } | |
1645 | else { | |
1646 | basc[sw] = '.'; | |
1647 | } | |
1648 | basc[sw+1] = '\0'; | |
1649 | sw++; | |
1650 | rm--; | |
1651 | if (sw==16) { | |
1652 | if ((strcmp(duphex, bhex)) !=0) { | |
1653 | if (dup !=0) { | |
1654 | sprintf(tdup,"Duplicate as above to" | |
1655 | " %s", addr); | |
1656 | printk( KERN_INFO " " | |
1657 | " --- %s ---\n",tdup); | |
1658 | } | |
1659 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1660 | addr, boff, bhex, basc); | |
1661 | dup = 0; | |
1662 | strcpy(duphex, bhex); | |
1663 | } | |
1664 | else { | |
1665 | dup++; | |
1666 | } | |
1667 | sw = 0; | |
1668 | rm = 16; | |
1669 | } | |
1670 | } /* endfor */ | |
1671 | ||
1672 | if (sw != 0) { | |
1673 | for ( ; rm > 0; rm--, sw++ ) { | |
1674 | if ((sw==4) || (sw==12)) strcat(bhex, " "); | |
1675 | if (sw==8) strcat(bhex, " "); | |
1676 | strcat(bhex, " "); | |
1677 | strcat(basc, " "); | |
1678 | } | |
1679 | if (dup !=0) { | |
1680 | sprintf(tdup,"Duplicate as above to %s", addr); | |
1681 | printk( KERN_INFO " --- %s ---\n", | |
1682 | tdup); | |
1683 | } | |
1684 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1685 | addr, boff, bhex, basc); | |
1686 | } | |
1687 | else { | |
1688 | if (dup >=1) { | |
1689 | sprintf(tdup,"Duplicate as above to %s", addr); | |
1690 | printk( KERN_INFO " --- %s ---\n", | |
1691 | tdup); | |
1692 | } | |
1693 | if (dup !=0) { | |
1694 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1695 | addr, boff, bhex, basc); | |
1696 | } | |
1697 | } | |
1698 | return; | |
1699 | ||
1700 | } /* end of dumpit */ | |
1701 | #endif | |
1702 | ||
1703 | /*-------------------------------------------------------------------* | |
1704 | * find_link * | |
1705 | *--------------------------------------------------------------------*/ | |
1706 | static int | |
1707 | find_link(struct net_device *dev, char *host_name, char *ws_name ) | |
1708 | { | |
1709 | struct claw_privbk *privptr; | |
1710 | struct claw_env *p_env; | |
1711 | int rc=0; | |
1712 | ||
1713 | #ifdef FUNCTRACE | |
1714 | printk(KERN_INFO "%s:%s > enter \n",dev->name,__FUNCTION__); | |
1715 | #endif | |
1716 | CLAW_DBF_TEXT(2,setup,"findlink"); | |
1717 | #ifdef DEBUGMSG | |
1718 | printk(KERN_INFO "%s: variable dev = \n",dev->name); | |
1719 | dumpit((char *) dev, sizeof(struct net_device)); | |
1720 | printk(KERN_INFO "%s: variable host_name = %s\n",dev->name, host_name); | |
1721 | printk(KERN_INFO "%s: variable ws_name = %s\n",dev->name, ws_name); | |
1722 | #endif | |
1723 | privptr=dev->priv; | |
1724 | p_env=privptr->p_env; | |
1725 | switch (p_env->packing) | |
1726 | { | |
1727 | case PACKING_ASK: | |
1728 | if ((memcmp(WS_APPL_NAME_PACKED, host_name, 8)!=0) || | |
1729 | (memcmp(WS_APPL_NAME_PACKED, ws_name, 8)!=0 )) | |
1730 | rc = EINVAL; | |
1731 | break; | |
1732 | case DO_PACKED: | |
1733 | case PACK_SEND: | |
1734 | if ((memcmp(WS_APPL_NAME_IP_NAME, host_name, 8)!=0) || | |
1735 | (memcmp(WS_APPL_NAME_IP_NAME, ws_name, 8)!=0 )) | |
1736 | rc = EINVAL; | |
1737 | break; | |
1738 | default: | |
1739 | if ((memcmp(HOST_APPL_NAME, host_name, 8)!=0) || | |
1740 | (memcmp(p_env->api_type , ws_name, 8)!=0)) | |
1741 | rc = EINVAL; | |
1742 | break; | |
1743 | } | |
1744 | ||
1745 | #ifdef FUNCTRACE | |
1746 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1747 | dev->name,__FUNCTION__,__LINE__); | |
1748 | #endif | |
1749 | return 0; | |
1750 | } /* end of find_link */ | |
1751 | ||
1752 | /*-------------------------------------------------------------------* | |
1753 | * claw_hw_tx * | |
1754 | * * | |
1755 | * * | |
1756 | *-------------------------------------------------------------------*/ | |
1757 | ||
1758 | static int | |
1759 | claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) | |
1760 | { | |
1761 | int rc=0; | |
1762 | struct claw_privbk *privptr; | |
1763 | struct ccwbk *p_this_ccw; | |
1764 | struct ccwbk *p_first_ccw; | |
1765 | struct ccwbk *p_last_ccw; | |
1766 | __u32 numBuffers; | |
1767 | signed long len_of_data; | |
1768 | unsigned long bytesInThisBuffer; | |
1769 | unsigned char *pDataAddress; | |
1770 | struct endccw *pEnd; | |
1771 | struct ccw1 tempCCW; | |
1772 | struct chbk *p_ch; | |
1773 | struct claw_env *p_env; | |
1774 | int lock; | |
1775 | struct clawph *pk_head; | |
1776 | struct chbk *ch; | |
1777 | #ifdef IOTRACE | |
1778 | struct ccwbk *p_buf; | |
1779 | #endif | |
1780 | #ifdef FUNCTRACE | |
1781 | printk(KERN_INFO "%s: %s() > enter\n",dev->name,__FUNCTION__); | |
1782 | #endif | |
1783 | CLAW_DBF_TEXT(4,trace,"hw_tx"); | |
1784 | #ifdef DEBUGMSG | |
1785 | printk(KERN_INFO "%s: variable dev skb =\n",dev->name); | |
1786 | dumpit((char *) skb, sizeof(struct sk_buff)); | |
1787 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1788 | dumpit((char *) dev, sizeof(struct net_device)); | |
1789 | printk(KERN_INFO "%s: variable linkid = %ld\n",dev->name,linkid); | |
1790 | #endif | |
1791 | privptr = (struct claw_privbk *) (dev->priv); | |
1792 | p_ch=(struct chbk *)&privptr->channel[WRITE]; | |
1793 | p_env =privptr->p_env; | |
1794 | #ifdef IOTRACE | |
1795 | printk(KERN_INFO "%s: %s() dump sk_buff \n",dev->name,__FUNCTION__); | |
1796 | dumpit((char *)skb ,sizeof(struct sk_buff)); | |
1797 | #endif | |
1798 | claw_free_wrt_buf(dev); /* Clean up free chain if posible */ | |
1799 | /* scan the write queue to free any completed write packets */ | |
1800 | p_first_ccw=NULL; | |
1801 | p_last_ccw=NULL; | |
1802 | if ((p_env->packing >= PACK_SEND) && | |
1803 | (skb->cb[1] != 'P')) { | |
1804 | skb_push(skb,sizeof(struct clawph)); | |
1805 | pk_head=(struct clawph *)skb->data; | |
1806 | pk_head->len=skb->len-sizeof(struct clawph); | |
1807 | if (pk_head->len%4) { | |
1808 | pk_head->len+= 4-(pk_head->len%4); | |
1809 | skb_pad(skb,4-(pk_head->len%4)); | |
1810 | skb_put(skb,4-(pk_head->len%4)); | |
1811 | } | |
1812 | if (p_env->packing == DO_PACKED) | |
1813 | pk_head->link_num = linkid; | |
1814 | else | |
1815 | pk_head->link_num = 0; | |
1816 | pk_head->flag = 0x00; | |
1817 | skb_pad(skb,4); | |
1818 | skb->cb[1] = 'P'; | |
1819 | } | |
1820 | if (linkid == 0) { | |
1821 | if (claw_check_busy(dev)) { | |
1822 | if (privptr->write_free_count!=0) { | |
1823 | claw_clear_busy(dev); | |
1824 | } | |
1825 | else { | |
1826 | claw_strt_out_IO(dev ); | |
1827 | claw_free_wrt_buf( dev ); | |
1828 | if (privptr->write_free_count==0) { | |
1829 | #ifdef IOTRACE | |
1830 | printk(KERN_INFO "%s: " | |
1831 | "(claw_check_busy) no free write " | |
1832 | "buffers\n", dev->name); | |
1833 | #endif | |
1834 | ch = &privptr->channel[WRITE]; | |
1835 | atomic_inc(&skb->users); | |
1836 | skb_queue_tail(&ch->collect_queue, skb); | |
1837 | goto Done; | |
1838 | } | |
1839 | else { | |
1840 | claw_clear_busy(dev); | |
1841 | } | |
1842 | } | |
1843 | } | |
1844 | /* tx lock */ | |
1845 | if (claw_test_and_setbit_busy(TB_TX,dev)) { /* set to busy */ | |
1846 | #ifdef DEBUGMSG | |
1847 | printk(KERN_INFO "%s: busy (claw_test_and_setbit_" | |
1848 | "busy)\n", dev->name); | |
1849 | #endif | |
1850 | ch = &privptr->channel[WRITE]; | |
1851 | atomic_inc(&skb->users); | |
1852 | skb_queue_tail(&ch->collect_queue, skb); | |
1853 | claw_strt_out_IO(dev ); | |
1854 | rc=-EBUSY; | |
1855 | goto Done2; | |
1856 | } | |
1857 | } | |
1858 | /* See how many write buffers are required to hold this data */ | |
1859 | numBuffers= ( skb->len + privptr->p_env->write_size - 1) / | |
1860 | ( privptr->p_env->write_size); | |
1861 | ||
1862 | /* If that number of buffers isn't available, give up for now */ | |
1863 | if (privptr->write_free_count < numBuffers || | |
1864 | privptr->p_write_free_chain == NULL ) { | |
1865 | ||
1866 | claw_setbit_busy(TB_NOBUFFER,dev); | |
1867 | ||
1868 | #ifdef DEBUGMSG | |
1869 | printk(KERN_INFO "%s: busy (claw_setbit_busy" | |
1870 | "(TB_NOBUFFER))\n", dev->name); | |
1871 | printk(KERN_INFO " free_count: %d, numBuffers : %d\n", | |
1872 | (int)privptr->write_free_count,(int) numBuffers ); | |
1873 | #endif | |
1874 | ch = &privptr->channel[WRITE]; | |
1875 | atomic_inc(&skb->users); | |
1876 | skb_queue_tail(&ch->collect_queue, skb); | |
1877 | CLAW_DBF_TEXT(2,trace,"clawbusy"); | |
1878 | goto Done2; | |
1879 | } | |
1880 | pDataAddress=skb->data; | |
1881 | len_of_data=skb->len; | |
1882 | ||
1883 | while (len_of_data > 0) { | |
1884 | #ifdef DEBUGMSG | |
1885 | printk(KERN_INFO "%s: %s() length-of-data is %ld \n", | |
1886 | dev->name ,__FUNCTION__,len_of_data); | |
1887 | dumpit((char *)pDataAddress ,64); | |
1888 | #endif | |
1889 | p_this_ccw=privptr->p_write_free_chain; /* get a block */ | |
1890 | if (p_this_ccw == NULL) { /* lost the race */ | |
1891 | ch = &privptr->channel[WRITE]; | |
1892 | atomic_inc(&skb->users); | |
1893 | skb_queue_tail(&ch->collect_queue, skb); | |
1894 | goto Done2; | |
1895 | } | |
1896 | privptr->p_write_free_chain=p_this_ccw->next; | |
1897 | p_this_ccw->next=NULL; | |
1898 | --privptr->write_free_count; /* -1 */ | |
1899 | bytesInThisBuffer=len_of_data; | |
1900 | memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer); | |
1901 | len_of_data-=bytesInThisBuffer; | |
1902 | pDataAddress+=(unsigned long)bytesInThisBuffer; | |
1903 | /* setup write CCW */ | |
1904 | p_this_ccw->write.cmd_code = (linkid * 8) +1; | |
1905 | if (len_of_data>0) { | |
1906 | p_this_ccw->write.cmd_code+=MORE_to_COME_FLAG; | |
1907 | } | |
1908 | p_this_ccw->write.count=bytesInThisBuffer; | |
1909 | /* now add to end of this chain */ | |
1910 | if (p_first_ccw==NULL) { | |
1911 | p_first_ccw=p_this_ccw; | |
1912 | } | |
1913 | if (p_last_ccw!=NULL) { | |
1914 | p_last_ccw->next=p_this_ccw; | |
1915 | /* set up TIC ccws */ | |
1916 | p_last_ccw->w_TIC_1.cda= | |
1917 | (__u32)__pa(&p_this_ccw->write); | |
1918 | } | |
1919 | p_last_ccw=p_this_ccw; /* save new last block */ | |
1920 | #ifdef IOTRACE | |
1921 | printk(KERN_INFO "%s: %s() > CCW and Buffer %ld bytes long \n", | |
1922 | dev->name,__FUNCTION__,bytesInThisBuffer); | |
1923 | dumpit((char *)p_this_ccw, sizeof(struct ccwbk)); | |
1924 | dumpit((char *)p_this_ccw->p_buffer, 64); | |
1925 | #endif | |
1926 | } | |
1927 | ||
1928 | /* FirstCCW and LastCCW now contain a new set of write channel | |
1929 | * programs to append to the running channel program | |
1930 | */ | |
1931 | ||
1932 | if (p_first_ccw!=NULL) { | |
1933 | /* setup ending ccw sequence for this segment */ | |
1934 | pEnd=privptr->p_end_ccw; | |
1935 | if (pEnd->write1) { | |
1936 | pEnd->write1=0x00; /* second end ccw is now active */ | |
1937 | /* set up Tic CCWs */ | |
1938 | p_last_ccw->w_TIC_1.cda= | |
1939 | (__u32)__pa(&pEnd->write2_nop1); | |
1940 | pEnd->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1941 | pEnd->write2_nop2.flags = | |
1942 | CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1943 | pEnd->write2_nop2.cda=0; | |
1944 | pEnd->write2_nop2.count=1; | |
1945 | } | |
1946 | else { /* end of if (pEnd->write1)*/ | |
1947 | pEnd->write1=0x01; /* first end ccw is now active */ | |
1948 | /* set up Tic CCWs */ | |
1949 | p_last_ccw->w_TIC_1.cda= | |
1950 | (__u32)__pa(&pEnd->write1_nop1); | |
1951 | pEnd->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1952 | pEnd->write1_nop2.flags = | |
1953 | CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1954 | pEnd->write1_nop2.cda=0; | |
1955 | pEnd->write1_nop2.count=1; | |
1956 | } /* end if if (pEnd->write1) */ | |
1957 | ||
1958 | ||
1959 | if (privptr->p_write_active_first==NULL ) { | |
1960 | privptr->p_write_active_first=p_first_ccw; | |
1961 | privptr->p_write_active_last=p_last_ccw; | |
1962 | } | |
1963 | else { | |
1964 | ||
1965 | /* set up Tic CCWs */ | |
1966 | ||
1967 | tempCCW.cda=(__u32)__pa(&p_first_ccw->write); | |
1968 | tempCCW.count=0; | |
1969 | tempCCW.flags=0; | |
1970 | tempCCW.cmd_code=CCW_CLAW_CMD_TIC; | |
1971 | ||
1972 | if (pEnd->write1) { | |
1973 | ||
1974 | /* | |
1975 | * first set of ending CCW's is chained to the new write | |
1976 | * chain, so the second set is chained to the active chain | |
1977 | * Therefore modify the second set to point the new write chain. | |
1978 | * make sure we update the CCW atomically | |
1979 | * so channel does not fetch it when it's only half done | |
1980 | */ | |
1981 | memcpy( &pEnd->write2_nop2, &tempCCW , | |
1982 | sizeof(struct ccw1)); | |
1983 | privptr->p_write_active_last->w_TIC_1.cda= | |
1984 | (__u32)__pa(&p_first_ccw->write); | |
1985 | } | |
1986 | else { | |
1987 | ||
1988 | /*make sure we update the CCW atomically | |
1989 | *so channel does not fetch it when it's only half done | |
1990 | */ | |
1991 | memcpy(&pEnd->write1_nop2, &tempCCW , | |
1992 | sizeof(struct ccw1)); | |
1993 | privptr->p_write_active_last->w_TIC_1.cda= | |
1994 | (__u32)__pa(&p_first_ccw->write); | |
1995 | ||
1996 | } /* end if if (pEnd->write1) */ | |
1997 | ||
1998 | privptr->p_write_active_last->next=p_first_ccw; | |
1999 | privptr->p_write_active_last=p_last_ccw; | |
2000 | } | |
2001 | ||
2002 | } /* endif (p_first_ccw!=NULL) */ | |
2003 | ||
2004 | ||
2005 | #ifdef IOTRACE | |
2006 | printk(KERN_INFO "%s: %s() > Dump Active CCW chain \n", | |
2007 | dev->name,__FUNCTION__); | |
2008 | p_buf=privptr->p_write_active_first; | |
2009 | while (p_buf!=NULL) { | |
2010 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2011 | p_buf=p_buf->next; | |
2012 | } | |
2013 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
2014 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
2015 | #endif | |
8e84c801 | 2016 | dev_kfree_skb_any(skb); |
1da177e4 LT |
2017 | if (linkid==0) { |
2018 | lock=LOCK_NO; | |
2019 | } | |
2020 | else { | |
2021 | lock=LOCK_YES; | |
2022 | } | |
2023 | claw_strt_out_IO(dev ); | |
2024 | /* if write free count is zero , set NOBUFFER */ | |
2025 | #ifdef DEBUGMSG | |
2026 | printk(KERN_INFO "%s: %s() > free_count is %d\n", | |
2027 | dev->name,__FUNCTION__, | |
2028 | (int) privptr->write_free_count ); | |
2029 | #endif | |
2030 | if (privptr->write_free_count==0) { | |
2031 | claw_setbit_busy(TB_NOBUFFER,dev); | |
2032 | } | |
2033 | Done2: | |
2034 | claw_clearbit_busy(TB_TX,dev); | |
2035 | Done: | |
2036 | #ifdef FUNCTRACE | |
2037 | printk(KERN_INFO "%s: %s() > exit on line %d, rc = %d \n", | |
2038 | dev->name,__FUNCTION__,__LINE__, rc); | |
2039 | #endif | |
2040 | return(rc); | |
2041 | } /* end of claw_hw_tx */ | |
2042 | ||
2043 | /*-------------------------------------------------------------------* | |
2044 | * * | |
2045 | * init_ccw_bk * | |
2046 | * * | |
2047 | *--------------------------------------------------------------------*/ | |
2048 | ||
2049 | static int | |
2050 | init_ccw_bk(struct net_device *dev) | |
2051 | { | |
2052 | ||
2053 | __u32 ccw_blocks_required; | |
2054 | __u32 ccw_blocks_perpage; | |
2055 | __u32 ccw_pages_required; | |
2056 | __u32 claw_reads_perpage=1; | |
2057 | __u32 claw_read_pages; | |
2058 | __u32 claw_writes_perpage=1; | |
2059 | __u32 claw_write_pages; | |
2060 | void *p_buff=NULL; | |
2061 | struct ccwbk*p_free_chain; | |
2062 | struct ccwbk*p_buf; | |
2063 | struct ccwbk*p_last_CCWB; | |
2064 | struct ccwbk*p_first_CCWB; | |
2065 | struct endccw *p_endccw=NULL; | |
2066 | addr_t real_address; | |
2067 | struct claw_privbk *privptr=dev->priv; | |
2068 | struct clawh *pClawH=NULL; | |
2069 | addr_t real_TIC_address; | |
2070 | int i,j; | |
2071 | #ifdef FUNCTRACE | |
2072 | printk(KERN_INFO "%s: %s() enter \n",dev->name,__FUNCTION__); | |
2073 | #endif | |
2074 | CLAW_DBF_TEXT(4,trace,"init_ccw"); | |
2075 | #ifdef DEBUGMSG | |
2076 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
2077 | dumpit((char *) dev, sizeof(struct net_device)); | |
2078 | #endif | |
2079 | ||
2080 | /* initialize statistics field */ | |
2081 | privptr->active_link_ID=0; | |
2082 | /* initialize ccwbk pointers */ | |
2083 | privptr->p_write_free_chain=NULL; /* pointer to free ccw chain*/ | |
2084 | privptr->p_write_active_first=NULL; /* pointer to the first write ccw*/ | |
2085 | privptr->p_write_active_last=NULL; /* pointer to the last write ccw*/ | |
2086 | privptr->p_read_active_first=NULL; /* pointer to the first read ccw*/ | |
2087 | privptr->p_read_active_last=NULL; /* pointer to the last read ccw */ | |
2088 | privptr->p_end_ccw=NULL; /* pointer to ending ccw */ | |
2089 | privptr->p_claw_signal_blk=NULL; /* pointer to signal block */ | |
2090 | privptr->buffs_alloc = 0; | |
2091 | memset(&privptr->end_ccw, 0x00, sizeof(struct endccw)); | |
2092 | memset(&privptr->ctl_bk, 0x00, sizeof(struct clawctl)); | |
2093 | /* initialize free write ccwbk counter */ | |
2094 | privptr->write_free_count=0; /* number of free bufs on write chain */ | |
2095 | p_last_CCWB = NULL; | |
2096 | p_first_CCWB= NULL; | |
2097 | /* | |
2098 | * We need 1 CCW block for each read buffer, 1 for each | |
2099 | * write buffer, plus 1 for ClawSignalBlock | |
2100 | */ | |
2101 | ccw_blocks_required = | |
2102 | privptr->p_env->read_buffers+privptr->p_env->write_buffers+1; | |
2103 | #ifdef DEBUGMSG | |
2104 | printk(KERN_INFO "%s: %s() " | |
2105 | "ccw_blocks_required=%d\n", | |
2106 | dev->name,__FUNCTION__, | |
2107 | ccw_blocks_required); | |
2108 | printk(KERN_INFO "%s: %s() " | |
2109 | "PAGE_SIZE=0x%x\n", | |
2110 | dev->name,__FUNCTION__, | |
2111 | (unsigned int)PAGE_SIZE); | |
2112 | printk(KERN_INFO "%s: %s() > " | |
2113 | "PAGE_MASK=0x%x\n", | |
2114 | dev->name,__FUNCTION__, | |
2115 | (unsigned int)PAGE_MASK); | |
2116 | #endif | |
2117 | /* | |
2118 | * compute number of CCW blocks that will fit in a page | |
2119 | */ | |
2120 | ccw_blocks_perpage= PAGE_SIZE / CCWBK_SIZE; | |
2121 | ccw_pages_required= | |
2122 | (ccw_blocks_required+ccw_blocks_perpage -1) / | |
2123 | ccw_blocks_perpage; | |
2124 | ||
2125 | #ifdef DEBUGMSG | |
2126 | printk(KERN_INFO "%s: %s() > ccw_blocks_perpage=%d\n", | |
2127 | dev->name,__FUNCTION__, | |
2128 | ccw_blocks_perpage); | |
2129 | printk(KERN_INFO "%s: %s() > ccw_pages_required=%d\n", | |
2130 | dev->name,__FUNCTION__, | |
2131 | ccw_pages_required); | |
2132 | #endif | |
2133 | /* | |
2134 | * read and write sizes are set by 2 constants in claw.h | |
2135 | * 4k and 32k. Unpacked values other than 4k are not going to | |
2136 | * provide good performance. With packing buffers support 32k | |
2137 | * buffers are used. | |
2138 | */ | |
2139 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2140 | claw_reads_perpage= PAGE_SIZE / privptr->p_env->read_size; | |
2141 | claw_read_pages= (privptr->p_env->read_buffers + | |
2142 | claw_reads_perpage -1) / claw_reads_perpage; | |
2143 | } | |
2144 | else { /* > or equal */ | |
2145 | privptr->p_buff_pages_perread= | |
2146 | (privptr->p_env->read_size + PAGE_SIZE - 1) / PAGE_SIZE; | |
2147 | claw_read_pages= | |
2148 | privptr->p_env->read_buffers * privptr->p_buff_pages_perread; | |
2149 | } | |
2150 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2151 | claw_writes_perpage= | |
2152 | PAGE_SIZE / privptr->p_env->write_size; | |
2153 | claw_write_pages= | |
2154 | (privptr->p_env->write_buffers + claw_writes_perpage -1) / | |
2155 | claw_writes_perpage; | |
2156 | ||
2157 | } | |
2158 | else { /* > or equal */ | |
2159 | privptr->p_buff_pages_perwrite= | |
2160 | (privptr->p_env->read_size + PAGE_SIZE - 1) / PAGE_SIZE; | |
2161 | claw_write_pages= | |
2162 | privptr->p_env->write_buffers * privptr->p_buff_pages_perwrite; | |
2163 | } | |
2164 | #ifdef DEBUGMSG | |
2165 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2166 | printk(KERN_INFO "%s: %s() reads_perpage=%d\n", | |
2167 | dev->name,__FUNCTION__, | |
2168 | claw_reads_perpage); | |
2169 | } | |
2170 | else { | |
2171 | printk(KERN_INFO "%s: %s() pages_perread=%d\n", | |
2172 | dev->name,__FUNCTION__, | |
2173 | privptr->p_buff_pages_perread); | |
2174 | } | |
2175 | printk(KERN_INFO "%s: %s() read_pages=%d\n", | |
2176 | dev->name,__FUNCTION__, | |
2177 | claw_read_pages); | |
2178 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2179 | printk(KERN_INFO "%s: %s() writes_perpage=%d\n", | |
2180 | dev->name,__FUNCTION__, | |
2181 | claw_writes_perpage); | |
2182 | } | |
2183 | else { | |
2184 | printk(KERN_INFO "%s: %s() pages_perwrite=%d\n", | |
2185 | dev->name,__FUNCTION__, | |
2186 | privptr->p_buff_pages_perwrite); | |
2187 | } | |
2188 | printk(KERN_INFO "%s: %s() write_pages=%d\n", | |
2189 | dev->name,__FUNCTION__, | |
2190 | claw_write_pages); | |
2191 | #endif | |
2192 | ||
2193 | ||
2194 | /* | |
2195 | * allocate ccw_pages_required | |
2196 | */ | |
2197 | if (privptr->p_buff_ccw==NULL) { | |
2198 | privptr->p_buff_ccw= | |
2199 | (void *)__get_free_pages(__GFP_DMA, | |
2200 | (int)pages_to_order_of_mag(ccw_pages_required )); | |
2201 | if (privptr->p_buff_ccw==NULL) { | |
2202 | printk(KERN_INFO "%s: %s() " | |
2203 | "__get_free_pages for CCWs failed : " | |
2204 | "pages is %d\n", | |
2205 | dev->name,__FUNCTION__, | |
2206 | ccw_pages_required ); | |
2207 | #ifdef FUNCTRACE | |
2208 | printk(KERN_INFO "%s: %s() > " | |
2209 | "exit on line %d, rc = ENOMEM\n", | |
2210 | dev->name,__FUNCTION__, | |
2211 | __LINE__); | |
2212 | #endif | |
2213 | return -ENOMEM; | |
2214 | } | |
2215 | privptr->p_buff_ccw_num=ccw_pages_required; | |
2216 | } | |
2217 | memset(privptr->p_buff_ccw, 0x00, | |
2218 | privptr->p_buff_ccw_num * PAGE_SIZE); | |
2219 | ||
2220 | /* | |
2221 | * obtain ending ccw block address | |
2222 | * | |
2223 | */ | |
2224 | privptr->p_end_ccw = (struct endccw *)&privptr->end_ccw; | |
2225 | real_address = (__u32)__pa(privptr->p_end_ccw); | |
2226 | /* Initialize ending CCW block */ | |
2227 | #ifdef DEBUGMSG | |
2228 | printk(KERN_INFO "%s: %s() begin initialize ending CCW blocks\n", | |
2229 | dev->name,__FUNCTION__); | |
2230 | #endif | |
2231 | ||
2232 | p_endccw=privptr->p_end_ccw; | |
2233 | p_endccw->real=real_address; | |
2234 | p_endccw->write1=0x00; | |
2235 | p_endccw->read1=0x00; | |
2236 | ||
2237 | /* write1_nop1 */ | |
2238 | p_endccw->write1_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2239 | p_endccw->write1_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2240 | p_endccw->write1_nop1.count = 1; | |
2241 | p_endccw->write1_nop1.cda = 0; | |
2242 | ||
2243 | /* write1_nop2 */ | |
2244 | p_endccw->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2245 | p_endccw->write1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2246 | p_endccw->write1_nop2.count = 1; | |
2247 | p_endccw->write1_nop2.cda = 0; | |
2248 | ||
2249 | /* write2_nop1 */ | |
2250 | p_endccw->write2_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2251 | p_endccw->write2_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2252 | p_endccw->write2_nop1.count = 1; | |
2253 | p_endccw->write2_nop1.cda = 0; | |
2254 | ||
2255 | /* write2_nop2 */ | |
2256 | p_endccw->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2257 | p_endccw->write2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2258 | p_endccw->write2_nop2.count = 1; | |
2259 | p_endccw->write2_nop2.cda = 0; | |
2260 | ||
2261 | /* read1_nop1 */ | |
2262 | p_endccw->read1_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2263 | p_endccw->read1_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2264 | p_endccw->read1_nop1.count = 1; | |
2265 | p_endccw->read1_nop1.cda = 0; | |
2266 | ||
2267 | /* read1_nop2 */ | |
2268 | p_endccw->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2269 | p_endccw->read1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2270 | p_endccw->read1_nop2.count = 1; | |
2271 | p_endccw->read1_nop2.cda = 0; | |
2272 | ||
2273 | /* read2_nop1 */ | |
2274 | p_endccw->read2_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2275 | p_endccw->read2_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2276 | p_endccw->read2_nop1.count = 1; | |
2277 | p_endccw->read2_nop1.cda = 0; | |
2278 | ||
2279 | /* read2_nop2 */ | |
2280 | p_endccw->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2281 | p_endccw->read2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2282 | p_endccw->read2_nop2.count = 1; | |
2283 | p_endccw->read2_nop2.cda = 0; | |
2284 | ||
2285 | #ifdef IOTRACE | |
2286 | printk(KERN_INFO "%s: %s() dump claw ending CCW BK \n", | |
2287 | dev->name,__FUNCTION__); | |
2288 | dumpit((char *)p_endccw, sizeof(struct endccw)); | |
2289 | #endif | |
2290 | ||
2291 | /* | |
2292 | * Build a chain of CCWs | |
2293 | * | |
2294 | */ | |
2295 | ||
2296 | #ifdef DEBUGMSG | |
2297 | printk(KERN_INFO "%s: %s() Begin build a chain of CCW buffer \n", | |
2298 | dev->name,__FUNCTION__); | |
2299 | #endif | |
2300 | p_buff=privptr->p_buff_ccw; | |
2301 | ||
2302 | p_free_chain=NULL; | |
2303 | for (i=0 ; i < ccw_pages_required; i++ ) { | |
2304 | real_address = (__u32)__pa(p_buff); | |
2305 | p_buf=p_buff; | |
2306 | for (j=0 ; j < ccw_blocks_perpage ; j++) { | |
2307 | p_buf->next = p_free_chain; | |
2308 | p_free_chain = p_buf; | |
2309 | p_buf->real=(__u32)__pa(p_buf); | |
2310 | ++p_buf; | |
2311 | } | |
2312 | p_buff+=PAGE_SIZE; | |
2313 | } | |
2314 | #ifdef DEBUGMSG | |
2315 | printk(KERN_INFO "%s: %s() " | |
2316 | "End build a chain of CCW buffer \n", | |
2317 | dev->name,__FUNCTION__); | |
2318 | p_buf=p_free_chain; | |
2319 | while (p_buf!=NULL) { | |
2320 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2321 | p_buf=p_buf->next; | |
2322 | } | |
2323 | #endif | |
2324 | ||
2325 | /* | |
2326 | * Initialize ClawSignalBlock | |
2327 | * | |
2328 | */ | |
2329 | #ifdef DEBUGMSG | |
2330 | printk(KERN_INFO "%s: %s() " | |
2331 | "Begin initialize ClawSignalBlock \n", | |
2332 | dev->name,__FUNCTION__); | |
2333 | #endif | |
2334 | if (privptr->p_claw_signal_blk==NULL) { | |
2335 | privptr->p_claw_signal_blk=p_free_chain; | |
2336 | p_free_chain=p_free_chain->next; | |
2337 | pClawH=(struct clawh *)privptr->p_claw_signal_blk; | |
2338 | pClawH->length=0xffff; | |
2339 | pClawH->opcode=0xff; | |
2340 | pClawH->flag=CLAW_BUSY; | |
2341 | } | |
2342 | #ifdef DEBUGMSG | |
2343 | printk(KERN_INFO "%s: %s() > End initialize " | |
2344 | "ClawSignalBlock\n", | |
2345 | dev->name,__FUNCTION__); | |
2346 | dumpit((char *)privptr->p_claw_signal_blk, sizeof(struct ccwbk)); | |
2347 | #endif | |
2348 | ||
2349 | /* | |
2350 | * allocate write_pages_required and add to free chain | |
2351 | */ | |
2352 | if (privptr->p_buff_write==NULL) { | |
2353 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2354 | privptr->p_buff_write= | |
2355 | (void *)__get_free_pages(__GFP_DMA, | |
2356 | (int)pages_to_order_of_mag(claw_write_pages )); | |
2357 | if (privptr->p_buff_write==NULL) { | |
2358 | printk(KERN_INFO "%s: %s() __get_free_pages for write" | |
2359 | " bufs failed : get is for %d pages\n", | |
2360 | dev->name,__FUNCTION__,claw_write_pages ); | |
2361 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2362 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
2363 | privptr->p_buff_ccw=NULL; | |
2364 | #ifdef FUNCTRACE | |
2365 | printk(KERN_INFO "%s: %s() > exit on line %d," | |
2366 | "rc = ENOMEM\n", | |
2367 | dev->name,__FUNCTION__,__LINE__); | |
2368 | #endif | |
2369 | return -ENOMEM; | |
2370 | } | |
2371 | /* | |
2372 | * Build CLAW write free chain | |
2373 | * | |
2374 | */ | |
2375 | ||
2376 | memset(privptr->p_buff_write, 0x00, | |
2377 | ccw_pages_required * PAGE_SIZE); | |
2378 | #ifdef DEBUGMSG | |
2379 | printk(KERN_INFO "%s: %s() Begin build claw write free " | |
2380 | "chain \n",dev->name,__FUNCTION__); | |
2381 | #endif | |
2382 | privptr->p_write_free_chain=NULL; | |
2383 | ||
2384 | p_buff=privptr->p_buff_write; | |
2385 | ||
2386 | for (i=0 ; i< privptr->p_env->write_buffers ; i++) { | |
2387 | p_buf = p_free_chain; /* get a CCW */ | |
2388 | p_free_chain = p_buf->next; | |
2389 | p_buf->next =privptr->p_write_free_chain; | |
2390 | privptr->p_write_free_chain = p_buf; | |
2391 | p_buf-> p_buffer = (struct clawbuf *)p_buff; | |
2392 | p_buf-> write.cda = (__u32)__pa(p_buff); | |
2393 | p_buf-> write.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2394 | p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2395 | p_buf-> w_read_FF.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2396 | p_buf-> w_read_FF.count = 1; | |
2397 | p_buf-> w_read_FF.cda = | |
2398 | (__u32)__pa(&p_buf-> header.flag); | |
2399 | p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2400 | p_buf-> w_TIC_1.flags = 0; | |
2401 | p_buf-> w_TIC_1.count = 0; | |
2402 | ||
2403 | if (((unsigned long)p_buff+privptr->p_env->write_size) >= | |
2404 | ((unsigned long)(p_buff+2* | |
2405 | (privptr->p_env->write_size) -1) & PAGE_MASK)) { | |
2406 | p_buff= p_buff+privptr->p_env->write_size; | |
2407 | } | |
2408 | } | |
2409 | } | |
2410 | else /* Buffers are => PAGE_SIZE. 1 buff per get_free_pages */ | |
2411 | { | |
2412 | privptr->p_write_free_chain=NULL; | |
2413 | for (i = 0; i< privptr->p_env->write_buffers ; i++) { | |
2414 | p_buff=(void *)__get_free_pages(__GFP_DMA, | |
2415 | (int)pages_to_order_of_mag( | |
2416 | privptr->p_buff_pages_perwrite) ); | |
2417 | #ifdef IOTRACE | |
2418 | printk(KERN_INFO "%s:%s __get_free_pages " | |
2419 | "for writes buf: get for %d pages\n", | |
2420 | dev->name,__FUNCTION__, | |
2421 | privptr->p_buff_pages_perwrite); | |
2422 | #endif | |
2423 | if (p_buff==NULL) { | |
2424 | printk(KERN_INFO "%s:%s __get_free_pages" | |
2425 | "for writes buf failed : get is for %d pages\n", | |
2426 | dev->name, | |
2427 | __FUNCTION__, | |
2428 | privptr->p_buff_pages_perwrite ); | |
2429 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2430 | (int)pages_to_order_of_mag( | |
2431 | privptr->p_buff_ccw_num)); | |
2432 | privptr->p_buff_ccw=NULL; | |
2433 | p_buf=privptr->p_buff_write; | |
2434 | while (p_buf!=NULL) { | |
2435 | free_pages((unsigned long) | |
2436 | p_buf->p_buffer, | |
2437 | (int)pages_to_order_of_mag( | |
2438 | privptr->p_buff_pages_perwrite)); | |
2439 | p_buf=p_buf->next; | |
2440 | } | |
2441 | #ifdef FUNCTRACE | |
2442 | printk(KERN_INFO "%s: %s exit on line %d, rc = ENOMEM\n", | |
2443 | dev->name, | |
2444 | __FUNCTION__, | |
2445 | __LINE__); | |
2446 | #endif | |
2447 | return -ENOMEM; | |
2448 | } /* Error on get_pages */ | |
2449 | memset(p_buff, 0x00, privptr->p_env->write_size ); | |
2450 | p_buf = p_free_chain; | |
2451 | p_free_chain = p_buf->next; | |
2452 | p_buf->next = privptr->p_write_free_chain; | |
2453 | privptr->p_write_free_chain = p_buf; | |
2454 | privptr->p_buff_write = p_buf; | |
2455 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2456 | p_buf-> write.cda = (__u32)__pa(p_buff); | |
2457 | p_buf-> write.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2458 | p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2459 | p_buf-> w_read_FF.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2460 | p_buf-> w_read_FF.count = 1; | |
2461 | p_buf-> w_read_FF.cda = | |
2462 | (__u32)__pa(&p_buf-> header.flag); | |
2463 | p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2464 | p_buf-> w_TIC_1.flags = 0; | |
2465 | p_buf-> w_TIC_1.count = 0; | |
2466 | } /* for all write_buffers */ | |
2467 | ||
2468 | } /* else buffers are PAGE_SIZE or bigger */ | |
2469 | ||
2470 | } | |
2471 | privptr->p_buff_write_num=claw_write_pages; | |
2472 | privptr->write_free_count=privptr->p_env->write_buffers; | |
2473 | ||
2474 | ||
2475 | #ifdef DEBUGMSG | |
2476 | printk(KERN_INFO "%s:%s End build claw write free chain \n", | |
2477 | dev->name,__FUNCTION__); | |
2478 | p_buf=privptr->p_write_free_chain; | |
2479 | while (p_buf!=NULL) { | |
2480 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2481 | p_buf=p_buf->next; | |
2482 | } | |
2483 | #endif | |
2484 | /* | |
2485 | * allocate read_pages_required and chain to free chain | |
2486 | */ | |
2487 | if (privptr->p_buff_read==NULL) { | |
2488 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2489 | privptr->p_buff_read= | |
2490 | (void *)__get_free_pages(__GFP_DMA, | |
2491 | (int)pages_to_order_of_mag(claw_read_pages) ); | |
2492 | if (privptr->p_buff_read==NULL) { | |
2493 | printk(KERN_INFO "%s: %s() " | |
2494 | "__get_free_pages for read buf failed : " | |
2495 | "get is for %d pages\n", | |
2496 | dev->name,__FUNCTION__,claw_read_pages ); | |
2497 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2498 | (int)pages_to_order_of_mag( | |
2499 | privptr->p_buff_ccw_num)); | |
2500 | /* free the write pages size is < page size */ | |
2501 | free_pages((unsigned long)privptr->p_buff_write, | |
2502 | (int)pages_to_order_of_mag( | |
2503 | privptr->p_buff_write_num)); | |
2504 | privptr->p_buff_ccw=NULL; | |
2505 | privptr->p_buff_write=NULL; | |
2506 | #ifdef FUNCTRACE | |
2507 | printk(KERN_INFO "%s: %s() > exit on line %d, rc =" | |
2508 | " ENOMEM\n",dev->name,__FUNCTION__,__LINE__); | |
2509 | #endif | |
2510 | return -ENOMEM; | |
2511 | } | |
2512 | memset(privptr->p_buff_read, 0x00, claw_read_pages * PAGE_SIZE); | |
2513 | privptr->p_buff_read_num=claw_read_pages; | |
2514 | /* | |
2515 | * Build CLAW read free chain | |
2516 | * | |
2517 | */ | |
2518 | #ifdef DEBUGMSG | |
2519 | printk(KERN_INFO "%s: %s() Begin build claw read free chain \n", | |
2520 | dev->name,__FUNCTION__); | |
2521 | #endif | |
2522 | p_buff=privptr->p_buff_read; | |
2523 | for (i=0 ; i< privptr->p_env->read_buffers ; i++) { | |
2524 | p_buf = p_free_chain; | |
2525 | p_free_chain = p_buf->next; | |
2526 | ||
2527 | if (p_last_CCWB==NULL) { | |
2528 | p_buf->next=NULL; | |
2529 | real_TIC_address=0; | |
2530 | p_last_CCWB=p_buf; | |
2531 | } | |
2532 | else { | |
2533 | p_buf->next=p_first_CCWB; | |
2534 | real_TIC_address= | |
2535 | (__u32)__pa(&p_first_CCWB -> read ); | |
2536 | } | |
2537 | ||
2538 | p_first_CCWB=p_buf; | |
2539 | ||
2540 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2541 | /* initialize read command */ | |
2542 | p_buf-> read.cmd_code = CCW_CLAW_CMD_READ; | |
2543 | p_buf-> read.cda = (__u32)__pa(p_buff); | |
2544 | p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2545 | p_buf-> read.count = privptr->p_env->read_size; | |
2546 | ||
2547 | /* initialize read_h command */ | |
2548 | p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER; | |
2549 | p_buf-> read_h.cda = | |
2550 | (__u32)__pa(&(p_buf->header)); | |
2551 | p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2552 | p_buf-> read_h.count = sizeof(struct clawh); | |
2553 | ||
2554 | /* initialize Signal command */ | |
2555 | p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD; | |
2556 | p_buf-> signal.cda = | |
2557 | (__u32)__pa(&(pClawH->flag)); | |
2558 | p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2559 | p_buf-> signal.count = 1; | |
2560 | ||
2561 | /* initialize r_TIC_1 command */ | |
2562 | p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2563 | p_buf-> r_TIC_1.cda = (__u32)real_TIC_address; | |
2564 | p_buf-> r_TIC_1.flags = 0; | |
2565 | p_buf-> r_TIC_1.count = 0; | |
2566 | ||
2567 | /* initialize r_read_FF command */ | |
2568 | p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2569 | p_buf-> r_read_FF.cda = | |
2570 | (__u32)__pa(&(pClawH->flag)); | |
2571 | p_buf-> r_read_FF.flags = | |
2572 | CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI; | |
2573 | p_buf-> r_read_FF.count = 1; | |
2574 | ||
2575 | /* initialize r_TIC_2 */ | |
2576 | memcpy(&p_buf->r_TIC_2, | |
2577 | &p_buf->r_TIC_1, sizeof(struct ccw1)); | |
2578 | ||
2579 | /* initialize Header */ | |
2580 | p_buf->header.length=0xffff; | |
2581 | p_buf->header.opcode=0xff; | |
2582 | p_buf->header.flag=CLAW_PENDING; | |
2583 | ||
2584 | if (((unsigned long)p_buff+privptr->p_env->read_size) >= | |
2585 | ((unsigned long)(p_buff+2*(privptr->p_env->read_size) -1) | |
2586 | & PAGE_MASK) ) { | |
2587 | p_buff= p_buff+privptr->p_env->read_size; | |
2588 | } | |
2589 | else { | |
2590 | p_buff= | |
2591 | (void *)((unsigned long) | |
2592 | (p_buff+2*(privptr->p_env->read_size) -1) | |
2593 | & PAGE_MASK) ; | |
2594 | } | |
2595 | } /* for read_buffers */ | |
2596 | } /* read_size < PAGE_SIZE */ | |
2597 | else { /* read Size >= PAGE_SIZE */ | |
2598 | ||
2599 | #ifdef DEBUGMSG | |
2600 | printk(KERN_INFO "%s: %s() Begin build claw read free chain \n", | |
2601 | dev->name,__FUNCTION__); | |
2602 | #endif | |
2603 | for (i=0 ; i< privptr->p_env->read_buffers ; i++) { | |
2604 | p_buff = (void *)__get_free_pages(__GFP_DMA, | |
2605 | (int)pages_to_order_of_mag(privptr->p_buff_pages_perread) ); | |
2606 | if (p_buff==NULL) { | |
2607 | printk(KERN_INFO "%s: %s() __get_free_pages for read " | |
2608 | "buf failed : get is for %d pages\n", | |
2609 | dev->name,__FUNCTION__, | |
2610 | privptr->p_buff_pages_perread ); | |
2611 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2612 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
2613 | /* free the write pages */ | |
2614 | p_buf=privptr->p_buff_write; | |
2615 | while (p_buf!=NULL) { | |
2616 | free_pages((unsigned long)p_buf->p_buffer, | |
2617 | (int)pages_to_order_of_mag( | |
2618 | privptr->p_buff_pages_perwrite )); | |
2619 | p_buf=p_buf->next; | |
2620 | } | |
2621 | /* free any read pages already alloc */ | |
2622 | p_buf=privptr->p_buff_read; | |
2623 | while (p_buf!=NULL) { | |
2624 | free_pages((unsigned long)p_buf->p_buffer, | |
2625 | (int)pages_to_order_of_mag( | |
2626 | privptr->p_buff_pages_perread )); | |
2627 | p_buf=p_buf->next; | |
2628 | } | |
2629 | privptr->p_buff_ccw=NULL; | |
2630 | privptr->p_buff_write=NULL; | |
2631 | #ifdef FUNCTRACE | |
2632 | printk(KERN_INFO "%s: %s() exit on line %d, rc = ENOMEM\n", | |
2633 | dev->name,__FUNCTION__, | |
2634 | __LINE__); | |
2635 | #endif | |
2636 | return -ENOMEM; | |
2637 | } | |
2638 | memset(p_buff, 0x00, privptr->p_env->read_size); | |
2639 | p_buf = p_free_chain; | |
2640 | privptr->p_buff_read = p_buf; | |
2641 | p_free_chain = p_buf->next; | |
2642 | ||
2643 | if (p_last_CCWB==NULL) { | |
2644 | p_buf->next=NULL; | |
2645 | real_TIC_address=0; | |
2646 | p_last_CCWB=p_buf; | |
2647 | } | |
2648 | else { | |
2649 | p_buf->next=p_first_CCWB; | |
2650 | real_TIC_address= | |
2651 | (addr_t)__pa( | |
2652 | &p_first_CCWB -> read ); | |
2653 | } | |
2654 | ||
2655 | p_first_CCWB=p_buf; | |
2656 | /* save buff address */ | |
2657 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2658 | /* initialize read command */ | |
2659 | p_buf-> read.cmd_code = CCW_CLAW_CMD_READ; | |
2660 | p_buf-> read.cda = (__u32)__pa(p_buff); | |
2661 | p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2662 | p_buf-> read.count = privptr->p_env->read_size; | |
2663 | ||
2664 | /* initialize read_h command */ | |
2665 | p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER; | |
2666 | p_buf-> read_h.cda = | |
2667 | (__u32)__pa(&(p_buf->header)); | |
2668 | p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2669 | p_buf-> read_h.count = sizeof(struct clawh); | |
2670 | ||
2671 | /* initialize Signal command */ | |
2672 | p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD; | |
2673 | p_buf-> signal.cda = | |
2674 | (__u32)__pa(&(pClawH->flag)); | |
2675 | p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2676 | p_buf-> signal.count = 1; | |
2677 | ||
2678 | /* initialize r_TIC_1 command */ | |
2679 | p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2680 | p_buf-> r_TIC_1.cda = (__u32)real_TIC_address; | |
2681 | p_buf-> r_TIC_1.flags = 0; | |
2682 | p_buf-> r_TIC_1.count = 0; | |
2683 | ||
2684 | /* initialize r_read_FF command */ | |
2685 | p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2686 | p_buf-> r_read_FF.cda = | |
2687 | (__u32)__pa(&(pClawH->flag)); | |
2688 | p_buf-> r_read_FF.flags = | |
2689 | CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI; | |
2690 | p_buf-> r_read_FF.count = 1; | |
2691 | ||
2692 | /* initialize r_TIC_2 */ | |
2693 | memcpy(&p_buf->r_TIC_2, &p_buf->r_TIC_1, | |
2694 | sizeof(struct ccw1)); | |
2695 | ||
2696 | /* initialize Header */ | |
2697 | p_buf->header.length=0xffff; | |
2698 | p_buf->header.opcode=0xff; | |
2699 | p_buf->header.flag=CLAW_PENDING; | |
2700 | ||
2701 | } /* For read_buffers */ | |
2702 | } /* read_size >= PAGE_SIZE */ | |
2703 | } /* pBuffread = NULL */ | |
2704 | #ifdef DEBUGMSG | |
2705 | printk(KERN_INFO "%s: %s() > End build claw read free chain \n", | |
2706 | dev->name,__FUNCTION__); | |
2707 | p_buf=p_first_CCWB; | |
2708 | while (p_buf!=NULL) { | |
2709 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2710 | p_buf=p_buf->next; | |
2711 | } | |
2712 | ||
2713 | #endif | |
2714 | add_claw_reads( dev ,p_first_CCWB , p_last_CCWB); | |
2715 | privptr->buffs_alloc = 1; | |
2716 | #ifdef FUNCTRACE | |
2717 | printk(KERN_INFO "%s: %s() exit on line %d\n", | |
2718 | dev->name,__FUNCTION__,__LINE__); | |
2719 | #endif | |
2720 | return 0; | |
2721 | } /* end of init_ccw_bk */ | |
2722 | ||
2723 | /*-------------------------------------------------------------------* | |
2724 | * * | |
2725 | * probe_error * | |
2726 | * * | |
2727 | *--------------------------------------------------------------------*/ | |
2728 | ||
2729 | static void | |
2730 | probe_error( struct ccwgroup_device *cgdev) | |
2731 | { | |
2732 | struct claw_privbk *privptr; | |
2733 | #ifdef FUNCTRACE | |
2734 | printk(KERN_INFO "%s enter \n",__FUNCTION__); | |
2735 | #endif | |
2736 | CLAW_DBF_TEXT(4,trace,"proberr"); | |
2737 | #ifdef DEBUGMSG | |
2738 | printk(KERN_INFO "%s variable cgdev =\n",__FUNCTION__); | |
2739 | dumpit((char *) cgdev, sizeof(struct ccwgroup_device)); | |
2740 | #endif | |
2741 | privptr=(struct claw_privbk *)cgdev->dev.driver_data; | |
2742 | if (privptr!=NULL) { | |
17fd682e JJ |
2743 | kfree(privptr->p_env); |
2744 | privptr->p_env=NULL; | |
2745 | kfree(privptr->p_mtc_envelope); | |
2746 | privptr->p_mtc_envelope=NULL; | |
1da177e4 LT |
2747 | kfree(privptr); |
2748 | privptr=NULL; | |
2749 | } | |
2750 | #ifdef FUNCTRACE | |
2751 | printk(KERN_INFO "%s > exit on line %d\n", | |
2752 | __FUNCTION__,__LINE__); | |
2753 | #endif | |
2754 | ||
2755 | return; | |
2756 | } /* probe_error */ | |
2757 | ||
2758 | ||
2759 | ||
2760 | /*-------------------------------------------------------------------* | |
2761 | * claw_process_control * | |
2762 | * * | |
2763 | * * | |
2764 | *--------------------------------------------------------------------*/ | |
2765 | ||
2766 | static int | |
2767 | claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) | |
2768 | { | |
2769 | ||
2770 | struct clawbuf *p_buf; | |
2771 | struct clawctl ctlbk; | |
2772 | struct clawctl *p_ctlbk; | |
2773 | char temp_host_name[8]; | |
2774 | char temp_ws_name[8]; | |
2775 | struct claw_privbk *privptr; | |
2776 | struct claw_env *p_env; | |
2777 | struct sysval *p_sysval; | |
2778 | struct conncmd *p_connect=NULL; | |
2779 | int rc; | |
2780 | struct chbk *p_ch = NULL; | |
2781 | #ifdef FUNCTRACE | |
2782 | printk(KERN_INFO "%s: %s() > enter \n", | |
2783 | dev->name,__FUNCTION__); | |
2784 | #endif | |
2785 | CLAW_DBF_TEXT(2,setup,"clw_cntl"); | |
2786 | #ifdef DEBUGMSG | |
2787 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
2788 | dumpit((char *) dev, sizeof(struct net_device)); | |
2789 | printk(KERN_INFO "%s: variable p_ccw =\n",dev->name); | |
2790 | dumpit((char *) p_ccw, sizeof(struct ccwbk *)); | |
2791 | #endif | |
2792 | udelay(1000); /* Wait a ms for the control packets to | |
2793 | *catch up to each other */ | |
2794 | privptr=dev->priv; | |
2795 | p_env=privptr->p_env; | |
2796 | memcpy( &temp_host_name, p_env->host_name, 8); | |
2797 | memcpy( &temp_ws_name, p_env->adapter_name , 8); | |
2798 | printk(KERN_INFO "%s: CLAW device %.8s: " | |
2799 | "Received Control Packet\n", | |
2800 | dev->name, temp_ws_name); | |
2801 | if (privptr->release_pend==1) { | |
2802 | #ifdef FUNCTRACE | |
2803 | printk(KERN_INFO "%s: %s() > " | |
2804 | "exit on line %d, rc=0\n", | |
2805 | dev->name,__FUNCTION__,__LINE__); | |
2806 | #endif | |
2807 | return 0; | |
2808 | } | |
2809 | p_buf=p_ccw->p_buffer; | |
2810 | p_ctlbk=&ctlbk; | |
2811 | if (p_env->packing == DO_PACKED) { /* packing in progress?*/ | |
2812 | memcpy(p_ctlbk, &p_buf->buffer[4], sizeof(struct clawctl)); | |
2813 | } else { | |
2814 | memcpy(p_ctlbk, p_buf, sizeof(struct clawctl)); | |
2815 | } | |
2816 | #ifdef IOTRACE | |
2817 | printk(KERN_INFO "%s: dump claw control data inbound\n",dev->name); | |
2818 | dumpit((char *)p_ctlbk, sizeof(struct clawctl)); | |
2819 | #endif | |
2820 | switch (p_ctlbk->command) | |
2821 | { | |
2822 | case SYSTEM_VALIDATE_REQUEST: | |
2823 | if (p_ctlbk->version!=CLAW_VERSION_ID) { | |
2824 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2825 | CLAW_RC_WRONG_VERSION ); | |
2826 | printk("%s: %d is wrong version id. " | |
2827 | "Expected %d\n", | |
2828 | dev->name, p_ctlbk->version, | |
2829 | CLAW_VERSION_ID); | |
2830 | } | |
2831 | p_sysval=(struct sysval *)&(p_ctlbk->data); | |
2832 | printk( "%s: Recv Sys Validate Request: " | |
2833 | "Vers=%d,link_id=%d,Corr=%d,WS name=%." | |
2834 | "8s,Host name=%.8s\n", | |
2835 | dev->name, p_ctlbk->version, | |
2836 | p_ctlbk->linkid, | |
2837 | p_ctlbk->correlator, | |
2838 | p_sysval->WS_name, | |
2839 | p_sysval->host_name); | |
2840 | if (0!=memcmp(temp_host_name,p_sysval->host_name,8)) { | |
2841 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2842 | CLAW_RC_NAME_MISMATCH ); | |
2843 | CLAW_DBF_TEXT(2,setup,"HSTBAD"); | |
2844 | CLAW_DBF_TEXT_(2,setup,"%s",p_sysval->host_name); | |
2845 | CLAW_DBF_TEXT_(2,setup,"%s",temp_host_name); | |
2846 | printk(KERN_INFO "%s: Host name mismatch\n", | |
2847 | dev->name); | |
2848 | printk(KERN_INFO "%s: Received :%s: " | |
2849 | "expected :%s: \n", | |
2850 | dev->name, | |
2851 | p_sysval->host_name, | |
2852 | temp_host_name); | |
2853 | } | |
2854 | if (0!=memcmp(temp_ws_name,p_sysval->WS_name,8)) { | |
2855 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2856 | CLAW_RC_NAME_MISMATCH ); | |
2857 | CLAW_DBF_TEXT(2,setup,"WSNBAD"); | |
2858 | CLAW_DBF_TEXT_(2,setup,"%s",p_sysval->WS_name); | |
2859 | CLAW_DBF_TEXT_(2,setup,"%s",temp_ws_name); | |
2860 | printk(KERN_INFO "%s: WS name mismatch\n", | |
2861 | dev->name); | |
2862 | printk(KERN_INFO "%s: Received :%s: " | |
2863 | "expected :%s: \n", | |
2864 | dev->name, | |
2865 | p_sysval->WS_name, | |
2866 | temp_ws_name); | |
2867 | } | |
2868 | if (( p_sysval->write_frame_size < p_env->write_size) && | |
2869 | ( p_env->packing == 0)) { | |
2870 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2871 | CLAW_RC_HOST_RCV_TOO_SMALL ); | |
2872 | printk(KERN_INFO "%s: host write size is too " | |
2873 | "small\n", dev->name); | |
2874 | CLAW_DBF_TEXT(2,setup,"wrtszbad"); | |
2875 | } | |
2876 | if (( p_sysval->read_frame_size < p_env->read_size) && | |
2877 | ( p_env->packing == 0)) { | |
2878 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2879 | CLAW_RC_HOST_RCV_TOO_SMALL ); | |
2880 | printk(KERN_INFO "%s: host read size is too " | |
2881 | "small\n", dev->name); | |
2882 | CLAW_DBF_TEXT(2,setup,"rdsizbad"); | |
2883 | } | |
2884 | claw_snd_sys_validate_rsp(dev, p_ctlbk, 0 ); | |
2885 | printk("%s: CLAW device %.8s: System validate" | |
2886 | " completed.\n",dev->name, temp_ws_name); | |
2887 | printk("%s: sys Validate Rsize:%d Wsize:%d\n",dev->name, | |
2888 | p_sysval->read_frame_size,p_sysval->write_frame_size); | |
2889 | privptr->system_validate_comp=1; | |
2890 | if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
2891 | p_env->packing = PACKING_ASK; | |
2892 | } | |
2893 | claw_strt_conn_req(dev); | |
2894 | break; | |
2895 | ||
2896 | case SYSTEM_VALIDATE_RESPONSE: | |
2897 | p_sysval=(struct sysval *)&(p_ctlbk->data); | |
2898 | printk("%s: Recv Sys Validate Resp: Vers=%d,Corr=%d,RC=%d," | |
2899 | "WS name=%.8s,Host name=%.8s\n", | |
2900 | dev->name, | |
2901 | p_ctlbk->version, | |
2902 | p_ctlbk->correlator, | |
2903 | p_ctlbk->rc, | |
2904 | p_sysval->WS_name, | |
2905 | p_sysval->host_name); | |
2906 | switch (p_ctlbk->rc) | |
2907 | { | |
2908 | case 0: | |
2909 | printk(KERN_INFO "%s: CLAW device " | |
2910 | "%.8s: System validate " | |
2911 | "completed.\n", | |
2912 | dev->name, temp_ws_name); | |
2913 | if (privptr->system_validate_comp == 0) | |
2914 | claw_strt_conn_req(dev); | |
2915 | privptr->system_validate_comp=1; | |
2916 | break; | |
2917 | case CLAW_RC_NAME_MISMATCH: | |
2918 | printk(KERN_INFO "%s: Sys Validate " | |
2919 | "Resp : Host, WS name is " | |
2920 | "mismatch\n", | |
2921 | dev->name); | |
2922 | break; | |
2923 | case CLAW_RC_WRONG_VERSION: | |
2924 | printk(KERN_INFO "%s: Sys Validate " | |
2925 | "Resp : Wrong version\n", | |
2926 | dev->name); | |
2927 | break; | |
2928 | case CLAW_RC_HOST_RCV_TOO_SMALL: | |
2929 | printk(KERN_INFO "%s: Sys Validate " | |
2930 | "Resp : bad frame size\n", | |
2931 | dev->name); | |
2932 | break; | |
2933 | default: | |
2934 | printk(KERN_INFO "%s: Sys Validate " | |
2935 | "error code=%d \n", | |
2936 | dev->name, p_ctlbk->rc ); | |
2937 | break; | |
2938 | } | |
2939 | break; | |
2940 | ||
2941 | case CONNECTION_REQUEST: | |
2942 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
2943 | printk(KERN_INFO "%s: Recv Conn Req: Vers=%d,link_id=%d," | |
2944 | "Corr=%d,HOST appl=%.8s,WS appl=%.8s\n", | |
2945 | dev->name, | |
2946 | p_ctlbk->version, | |
2947 | p_ctlbk->linkid, | |
2948 | p_ctlbk->correlator, | |
2949 | p_connect->host_name, | |
2950 | p_connect->WS_name); | |
2951 | if (privptr->active_link_ID!=0 ) { | |
2952 | claw_snd_disc(dev, p_ctlbk); | |
2953 | printk(KERN_INFO "%s: Conn Req error : " | |
2954 | "already logical link is active \n", | |
2955 | dev->name); | |
2956 | } | |
2957 | if (p_ctlbk->linkid!=1 ) { | |
2958 | claw_snd_disc(dev, p_ctlbk); | |
2959 | printk(KERN_INFO "%s: Conn Req error : " | |
2960 | "req logical link id is not 1\n", | |
2961 | dev->name); | |
2962 | } | |
2963 | rc=find_link(dev, | |
2964 | p_connect->host_name, p_connect->WS_name); | |
2965 | if (rc!=0) { | |
2966 | claw_snd_disc(dev, p_ctlbk); | |
2967 | printk(KERN_INFO "%s: Conn Req error : " | |
2968 | "req appl name does not match\n", | |
2969 | dev->name); | |
2970 | } | |
2971 | claw_send_control(dev, | |
2972 | CONNECTION_CONFIRM, p_ctlbk->linkid, | |
2973 | p_ctlbk->correlator, | |
2974 | 0, p_connect->host_name, | |
2975 | p_connect->WS_name); | |
2976 | if (p_env->packing == PACKING_ASK) { | |
2977 | printk("%s: Now Pack ask\n",dev->name); | |
2978 | p_env->packing = PACK_SEND; | |
2979 | claw_snd_conn_req(dev,0); | |
2980 | } | |
2981 | printk(KERN_INFO "%s: CLAW device %.8s: Connection " | |
2982 | "completed link_id=%d.\n", | |
2983 | dev->name, temp_ws_name, | |
2984 | p_ctlbk->linkid); | |
2985 | privptr->active_link_ID=p_ctlbk->linkid; | |
2986 | p_ch=&privptr->channel[WRITE]; | |
2987 | wake_up(&p_ch->wait); /* wake up claw_open ( WRITE) */ | |
2988 | break; | |
2989 | case CONNECTION_RESPONSE: | |
2990 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
2991 | printk(KERN_INFO "%s: Revc Conn Resp: Vers=%d,link_id=%d," | |
2992 | "Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n", | |
2993 | dev->name, | |
2994 | p_ctlbk->version, | |
2995 | p_ctlbk->linkid, | |
2996 | p_ctlbk->correlator, | |
2997 | p_ctlbk->rc, | |
2998 | p_connect->host_name, | |
2999 | p_connect->WS_name); | |
3000 | ||
3001 | if (p_ctlbk->rc !=0 ) { | |
3002 | printk(KERN_INFO "%s: Conn Resp error: rc=%d \n", | |
3003 | dev->name, p_ctlbk->rc); | |
3004 | return 1; | |
3005 | } | |
3006 | rc=find_link(dev, | |
3007 | p_connect->host_name, p_connect->WS_name); | |
3008 | if (rc!=0) { | |
3009 | claw_snd_disc(dev, p_ctlbk); | |
3010 | printk(KERN_INFO "%s: Conn Resp error: " | |
3011 | "req appl name does not match\n", | |
3012 | dev->name); | |
3013 | } | |
3014 | /* should be until CONNECTION_CONFIRM */ | |
3015 | privptr->active_link_ID = - (p_ctlbk->linkid); | |
3016 | break; | |
3017 | case CONNECTION_CONFIRM: | |
3018 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
3019 | printk(KERN_INFO "%s: Recv Conn Confirm:Vers=%d,link_id=%d," | |
3020 | "Corr=%d,Host appl=%.8s,WS appl=%.8s\n", | |
3021 | dev->name, | |
3022 | p_ctlbk->version, | |
3023 | p_ctlbk->linkid, | |
3024 | p_ctlbk->correlator, | |
3025 | p_connect->host_name, | |
3026 | p_connect->WS_name); | |
3027 | if (p_ctlbk->linkid== -(privptr->active_link_ID)) { | |
3028 | privptr->active_link_ID=p_ctlbk->linkid; | |
3029 | if (p_env->packing > PACKING_ASK) { | |
3030 | printk(KERN_INFO "%s: Confirmed Now packing\n",dev->name); | |
3031 | p_env->packing = DO_PACKED; | |
3032 | } | |
3033 | p_ch=&privptr->channel[WRITE]; | |
3034 | wake_up(&p_ch->wait); | |
3035 | } | |
3036 | else { | |
3037 | printk(KERN_INFO "%s: Conn confirm: " | |
3038 | "unexpected linkid=%d \n", | |
3039 | dev->name, p_ctlbk->linkid); | |
3040 | claw_snd_disc(dev, p_ctlbk); | |
3041 | } | |
3042 | break; | |
3043 | case DISCONNECT: | |
3044 | printk(KERN_INFO "%s: Disconnect: " | |
3045 | "Vers=%d,link_id=%d,Corr=%d\n", | |
3046 | dev->name, p_ctlbk->version, | |
3047 | p_ctlbk->linkid, p_ctlbk->correlator); | |
3048 | if ((p_ctlbk->linkid == 2) && | |
3049 | (p_env->packing == PACK_SEND)) { | |
3050 | privptr->active_link_ID = 1; | |
3051 | p_env->packing = DO_PACKED; | |
3052 | } | |
3053 | else | |
3054 | privptr->active_link_ID=0; | |
3055 | break; | |
3056 | case CLAW_ERROR: | |
3057 | printk(KERN_INFO "%s: CLAW ERROR detected\n", | |
3058 | dev->name); | |
3059 | break; | |
3060 | default: | |
3061 | printk(KERN_INFO "%s: Unexpected command code=%d \n", | |
3062 | dev->name, p_ctlbk->command); | |
3063 | break; | |
3064 | } | |
3065 | ||
3066 | #ifdef FUNCTRACE | |
3067 | printk(KERN_INFO "%s: %s() exit on line %d, rc = 0\n", | |
3068 | dev->name,__FUNCTION__,__LINE__); | |
3069 | #endif | |
3070 | ||
3071 | return 0; | |
3072 | } /* end of claw_process_control */ | |
3073 | ||
3074 | ||
3075 | /*-------------------------------------------------------------------* | |
3076 | * claw_send_control * | |
3077 | * * | |
3078 | *--------------------------------------------------------------------*/ | |
3079 | ||
3080 | static int | |
3081 | claw_send_control(struct net_device *dev, __u8 type, __u8 link, | |
3082 | __u8 correlator, __u8 rc, char *local_name, char *remote_name) | |
3083 | { | |
3084 | struct claw_privbk *privptr; | |
3085 | struct clawctl *p_ctl; | |
3086 | struct sysval *p_sysval; | |
3087 | struct conncmd *p_connect; | |
3088 | struct sk_buff *skb; | |
3089 | ||
3090 | #ifdef FUNCTRACE | |
3091 | printk(KERN_INFO "%s:%s > enter \n",dev->name,__FUNCTION__); | |
3092 | #endif | |
3093 | CLAW_DBF_TEXT(2,setup,"sndcntl"); | |
3094 | #ifdef DEBUGMSG | |
3095 | printk(KERN_INFO "%s: Sending Control Packet \n",dev->name); | |
3096 | printk(KERN_INFO "%s: variable type = 0x%X, link = " | |
3097 | "%d, correlator = %d, rc = %d\n", | |
3098 | dev->name,type, link, correlator, rc); | |
3099 | printk(KERN_INFO "%s: variable local_name = %s, " | |
3100 | "remote_name = %s\n",dev->name, local_name, remote_name); | |
3101 | #endif | |
3102 | privptr=dev->priv; | |
3103 | p_ctl=(struct clawctl *)&privptr->ctl_bk; | |
3104 | ||
3105 | p_ctl->command=type; | |
3106 | p_ctl->version=CLAW_VERSION_ID; | |
3107 | p_ctl->linkid=link; | |
3108 | p_ctl->correlator=correlator; | |
3109 | p_ctl->rc=rc; | |
3110 | ||
3111 | p_sysval=(struct sysval *)&p_ctl->data; | |
3112 | p_connect=(struct conncmd *)&p_ctl->data; | |
3113 | ||
3114 | switch (p_ctl->command) { | |
3115 | case SYSTEM_VALIDATE_REQUEST: | |
3116 | case SYSTEM_VALIDATE_RESPONSE: | |
3117 | memcpy(&p_sysval->host_name, local_name, 8); | |
3118 | memcpy(&p_sysval->WS_name, remote_name, 8); | |
3119 | if (privptr->p_env->packing > 0) { | |
3120 | p_sysval->read_frame_size=DEF_PACK_BUFSIZE; | |
3121 | p_sysval->write_frame_size=DEF_PACK_BUFSIZE; | |
3122 | } else { | |
3123 | /* how big is the piggest group of packets */ | |
3124 | p_sysval->read_frame_size=privptr->p_env->read_size; | |
3125 | p_sysval->write_frame_size=privptr->p_env->write_size; | |
3126 | } | |
3127 | memset(&p_sysval->reserved, 0x00, 4); | |
3128 | break; | |
3129 | case CONNECTION_REQUEST: | |
3130 | case CONNECTION_RESPONSE: | |
3131 | case CONNECTION_CONFIRM: | |
3132 | case DISCONNECT: | |
3133 | memcpy(&p_sysval->host_name, local_name, 8); | |
3134 | memcpy(&p_sysval->WS_name, remote_name, 8); | |
3135 | if (privptr->p_env->packing > 0) { | |
3136 | /* How big is the biggest packet */ | |
3137 | p_connect->reserved1[0]=CLAW_FRAME_SIZE; | |
3138 | p_connect->reserved1[1]=CLAW_FRAME_SIZE; | |
3139 | } else { | |
3140 | memset(&p_connect->reserved1, 0x00, 4); | |
3141 | memset(&p_connect->reserved2, 0x00, 4); | |
3142 | } | |
3143 | break; | |
3144 | default: | |
3145 | break; | |
3146 | } | |
3147 | ||
3148 | /* write Control Record to the device */ | |
3149 | ||
3150 | ||
3151 | skb = dev_alloc_skb(sizeof(struct clawctl)); | |
3152 | if (!skb) { | |
3153 | printk( "%s:%s low on mem, returning...\n", | |
3154 | dev->name,__FUNCTION__); | |
3155 | #ifdef DEBUG | |
3156 | printk(KERN_INFO "%s:%s Exit, rc = ENOMEM\n", | |
3157 | dev->name,__FUNCTION__); | |
3158 | #endif | |
3159 | return -ENOMEM; | |
3160 | } | |
3161 | memcpy(skb_put(skb, sizeof(struct clawctl)), | |
3162 | p_ctl, sizeof(struct clawctl)); | |
3163 | #ifdef IOTRACE | |
3164 | printk(KERN_INFO "%s: outbnd claw cntl data \n",dev->name); | |
3165 | dumpit((char *)p_ctl,sizeof(struct clawctl)); | |
3166 | #endif | |
3167 | if (privptr->p_env->packing >= PACK_SEND) | |
3168 | claw_hw_tx(skb, dev, 1); | |
3169 | else | |
3170 | claw_hw_tx(skb, dev, 0); | |
3171 | #ifdef FUNCTRACE | |
3172 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3173 | dev->name,__FUNCTION__,__LINE__); | |
3174 | #endif | |
3175 | ||
3176 | return 0; | |
3177 | } /* end of claw_send_control */ | |
3178 | ||
3179 | /*-------------------------------------------------------------------* | |
3180 | * claw_snd_conn_req * | |
3181 | * * | |
3182 | *--------------------------------------------------------------------*/ | |
3183 | static int | |
3184 | claw_snd_conn_req(struct net_device *dev, __u8 link) | |
3185 | { | |
3186 | int rc; | |
3187 | struct claw_privbk *privptr=dev->priv; | |
3188 | struct clawctl *p_ctl; | |
3189 | ||
3190 | #ifdef FUNCTRACE | |
3191 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
3192 | #endif | |
3193 | CLAW_DBF_TEXT(2,setup,"snd_conn"); | |
3194 | #ifdef DEBUGMSG | |
3195 | printk(KERN_INFO "%s: variable link = %X, dev =\n",dev->name, link); | |
3196 | dumpit((char *) dev, sizeof(struct net_device)); | |
3197 | #endif | |
3198 | rc = 1; | |
3199 | p_ctl=(struct clawctl *)&privptr->ctl_bk; | |
3200 | p_ctl->linkid = link; | |
3201 | if ( privptr->system_validate_comp==0x00 ) { | |
3202 | #ifdef FUNCTRACE | |
3203 | printk(KERN_INFO "%s:%s Exit on line %d, rc = 1\n", | |
3204 | dev->name,__FUNCTION__,__LINE__); | |
3205 | #endif | |
3206 | return rc; | |
3207 | } | |
3208 | if (privptr->p_env->packing == PACKING_ASK ) | |
3209 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3210 | WS_APPL_NAME_PACKED, WS_APPL_NAME_PACKED); | |
3211 | if (privptr->p_env->packing == PACK_SEND) { | |
3212 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3213 | WS_APPL_NAME_IP_NAME, WS_APPL_NAME_IP_NAME); | |
3214 | } | |
3215 | if (privptr->p_env->packing == 0) | |
3216 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3217 | HOST_APPL_NAME, privptr->p_env->api_type); | |
3218 | #ifdef FUNCTRACE | |
3219 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3220 | dev->name,__FUNCTION__,__LINE__, rc); | |
3221 | #endif | |
3222 | return rc; | |
3223 | ||
3224 | } /* end of claw_snd_conn_req */ | |
3225 | ||
3226 | ||
3227 | /*-------------------------------------------------------------------* | |
3228 | * claw_snd_disc * | |
3229 | * * | |
3230 | *--------------------------------------------------------------------*/ | |
3231 | ||
3232 | static int | |
3233 | claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl) | |
3234 | { | |
3235 | int rc; | |
3236 | struct conncmd * p_connect; | |
3237 | ||
3238 | #ifdef FUNCTRACE | |
3239 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3240 | #endif | |
3241 | CLAW_DBF_TEXT(2,setup,"snd_dsc"); | |
3242 | #ifdef DEBUGMSG | |
3243 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
3244 | dumpit((char *) dev, sizeof(struct net_device)); | |
3245 | printk(KERN_INFO "%s: variable p_ctl",dev->name); | |
3246 | dumpit((char *) p_ctl, sizeof(struct clawctl)); | |
3247 | #endif | |
3248 | p_connect=(struct conncmd *)&p_ctl->data; | |
3249 | ||
3250 | rc=claw_send_control(dev, DISCONNECT, p_ctl->linkid, | |
3251 | p_ctl->correlator, 0, | |
3252 | p_connect->host_name, p_connect->WS_name); | |
3253 | #ifdef FUNCTRACE | |
3254 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3255 | dev->name,__FUNCTION__, __LINE__, rc); | |
3256 | #endif | |
3257 | return rc; | |
3258 | } /* end of claw_snd_disc */ | |
3259 | ||
3260 | ||
3261 | /*-------------------------------------------------------------------* | |
3262 | * claw_snd_sys_validate_rsp * | |
3263 | * * | |
3264 | *--------------------------------------------------------------------*/ | |
3265 | ||
3266 | static int | |
3267 | claw_snd_sys_validate_rsp(struct net_device *dev, | |
3268 | struct clawctl *p_ctl, __u32 return_code) | |
3269 | { | |
3270 | struct claw_env * p_env; | |
3271 | struct claw_privbk *privptr; | |
3272 | int rc; | |
3273 | ||
3274 | #ifdef FUNCTRACE | |
3275 | printk(KERN_INFO "%s:%s Enter\n", | |
3276 | dev->name,__FUNCTION__); | |
3277 | #endif | |
3278 | CLAW_DBF_TEXT(2,setup,"chkresp"); | |
3279 | #ifdef DEBUGMSG | |
3280 | printk(KERN_INFO "%s: variable return_code = %d, dev =\n", | |
3281 | dev->name, return_code); | |
3282 | dumpit((char *) dev, sizeof(struct net_device)); | |
3283 | printk(KERN_INFO "%s: variable p_ctl =\n",dev->name); | |
3284 | dumpit((char *) p_ctl, sizeof(struct clawctl)); | |
3285 | #endif | |
3286 | privptr = dev->priv; | |
3287 | p_env=privptr->p_env; | |
3288 | rc=claw_send_control(dev, SYSTEM_VALIDATE_RESPONSE, | |
3289 | p_ctl->linkid, | |
3290 | p_ctl->correlator, | |
3291 | return_code, | |
3292 | p_env->host_name, | |
3293 | p_env->adapter_name ); | |
3294 | #ifdef FUNCTRACE | |
3295 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3296 | dev->name,__FUNCTION__,__LINE__, rc); | |
3297 | #endif | |
3298 | return rc; | |
3299 | } /* end of claw_snd_sys_validate_rsp */ | |
3300 | ||
3301 | /*-------------------------------------------------------------------* | |
3302 | * claw_strt_conn_req * | |
3303 | * * | |
3304 | *--------------------------------------------------------------------*/ | |
3305 | ||
3306 | static int | |
3307 | claw_strt_conn_req(struct net_device *dev ) | |
3308 | { | |
3309 | int rc; | |
3310 | ||
3311 | #ifdef FUNCTRACE | |
3312 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3313 | #endif | |
3314 | CLAW_DBF_TEXT(2,setup,"conn_req"); | |
3315 | #ifdef DEBUGMSG | |
3316 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
3317 | dumpit((char *) dev, sizeof(struct net_device)); | |
3318 | #endif | |
3319 | rc=claw_snd_conn_req(dev, 1); | |
3320 | #ifdef FUNCTRACE | |
3321 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3322 | dev->name,__FUNCTION__,__LINE__, rc); | |
3323 | #endif | |
3324 | return rc; | |
3325 | } /* end of claw_strt_conn_req */ | |
3326 | ||
3327 | ||
3328 | ||
3329 | /*-------------------------------------------------------------------* | |
3330 | * claw_stats * | |
3331 | *-------------------------------------------------------------------*/ | |
3332 | ||
3333 | static struct | |
3334 | net_device_stats *claw_stats(struct net_device *dev) | |
3335 | { | |
3336 | struct claw_privbk *privptr; | |
3337 | #ifdef FUNCTRACE | |
3338 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3339 | #endif | |
3340 | CLAW_DBF_TEXT(4,trace,"stats"); | |
3341 | privptr = dev->priv; | |
3342 | #ifdef FUNCTRACE | |
3343 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3344 | dev->name,__FUNCTION__,__LINE__); | |
3345 | #endif | |
3346 | return &privptr->stats; | |
3347 | } /* end of claw_stats */ | |
3348 | ||
3349 | ||
3350 | /*-------------------------------------------------------------------* | |
3351 | * unpack_read * | |
3352 | * * | |
3353 | *--------------------------------------------------------------------*/ | |
3354 | static void | |
3355 | unpack_read(struct net_device *dev ) | |
3356 | { | |
3357 | struct sk_buff *skb; | |
3358 | struct claw_privbk *privptr; | |
3359 | struct claw_env *p_env; | |
3360 | struct ccwbk *p_this_ccw; | |
3361 | struct ccwbk *p_first_ccw; | |
3362 | struct ccwbk *p_last_ccw; | |
3363 | struct clawph *p_packh; | |
3364 | void *p_packd; | |
3365 | struct clawctl *p_ctlrec=NULL; | |
3366 | ||
3367 | __u32 len_of_data; | |
3368 | __u32 pack_off; | |
3369 | __u8 link_num; | |
3370 | __u8 mtc_this_frm=0; | |
3371 | __u32 bytes_to_mov; | |
3372 | struct chbk *p_ch = NULL; | |
3373 | int i=0; | |
3374 | int p=0; | |
3375 | ||
3376 | #ifdef FUNCTRACE | |
3377 | printk(KERN_INFO "%s:%s enter \n",dev->name,__FUNCTION__); | |
3378 | #endif | |
3379 | CLAW_DBF_TEXT(4,trace,"unpkread"); | |
3380 | p_first_ccw=NULL; | |
3381 | p_last_ccw=NULL; | |
3382 | p_packh=NULL; | |
3383 | p_packd=NULL; | |
3384 | privptr=dev->priv; | |
3385 | p_env = privptr->p_env; | |
3386 | p_this_ccw=privptr->p_read_active_first; | |
3387 | i=0; | |
3388 | while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) { | |
3389 | #ifdef IOTRACE | |
3390 | printk(KERN_INFO "%s p_this_ccw \n",dev->name); | |
3391 | dumpit((char*)p_this_ccw, sizeof(struct ccwbk)); | |
3392 | printk(KERN_INFO "%s Inbound p_this_ccw->p_buffer(64)" | |
3393 | " pk=%d \n",dev->name,p_env->packing); | |
3394 | dumpit((char *)p_this_ccw->p_buffer, 64 ); | |
3395 | #endif | |
3396 | pack_off = 0; | |
3397 | p = 0; | |
3398 | p_this_ccw->header.flag=CLAW_PENDING; | |
3399 | privptr->p_read_active_first=p_this_ccw->next; | |
3400 | p_this_ccw->next=NULL; | |
3401 | p_packh = (struct clawph *)p_this_ccw->p_buffer; | |
3402 | if ((p_env->packing == PACK_SEND) && | |
3403 | (p_packh->len == 32) && | |
3404 | (p_packh->link_num == 0)) { /* is it a packed ctl rec? */ | |
3405 | p_packh++; /* peek past pack header */ | |
3406 | p_ctlrec = (struct clawctl *)p_packh; | |
3407 | p_packh--; /* un peek */ | |
3408 | if ((p_ctlrec->command == CONNECTION_RESPONSE) || | |
3409 | (p_ctlrec->command == CONNECTION_CONFIRM)) | |
3410 | p_env->packing = DO_PACKED; | |
3411 | } | |
3412 | if (p_env->packing == DO_PACKED) | |
3413 | link_num=p_packh->link_num; | |
3414 | else | |
3415 | link_num=p_this_ccw->header.opcode / 8; | |
3416 | if ((p_this_ccw->header.opcode & MORE_to_COME_FLAG)!=0) { | |
3417 | #ifdef DEBUGMSG | |
3418 | printk(KERN_INFO "%s: %s > More_to_come is ON\n", | |
3419 | dev->name,__FUNCTION__); | |
3420 | #endif | |
3421 | mtc_this_frm=1; | |
3422 | if (p_this_ccw->header.length!= | |
3423 | privptr->p_env->read_size ) { | |
3424 | printk(KERN_INFO " %s: Invalid frame detected " | |
3425 | "length is %02x\n" , | |
3426 | dev->name, p_this_ccw->header.length); | |
3427 | } | |
3428 | } | |
3429 | ||
3430 | if (privptr->mtc_skipping) { | |
3431 | /* | |
3432 | * We're in the mode of skipping past a | |
3433 | * multi-frame message | |
3434 | * that we can't process for some reason or other. | |
3435 | * The first frame without the More-To-Come flag is | |
3436 | * the last frame of the skipped message. | |
3437 | */ | |
3438 | /* in case of More-To-Come not set in this frame */ | |
3439 | if (mtc_this_frm==0) { | |
3440 | privptr->mtc_skipping=0; /* Ok, the end */ | |
3441 | privptr->mtc_logical_link=-1; | |
3442 | } | |
3443 | #ifdef DEBUGMSG | |
3444 | printk(KERN_INFO "%s:%s goto next " | |
3445 | "frame from MoretoComeSkip \n", | |
3446 | dev->name,__FUNCTION__); | |
3447 | #endif | |
3448 | goto NextFrame; | |
3449 | } | |
3450 | ||
3451 | if (link_num==0) { | |
3452 | claw_process_control(dev, p_this_ccw); | |
3453 | #ifdef DEBUGMSG | |
3454 | printk(KERN_INFO "%s:%s goto next " | |
3455 | "frame from claw_process_control \n", | |
3456 | dev->name,__FUNCTION__); | |
3457 | #endif | |
3458 | CLAW_DBF_TEXT(4,trace,"UnpkCntl"); | |
3459 | goto NextFrame; | |
3460 | } | |
3461 | unpack_next: | |
3462 | if (p_env->packing == DO_PACKED) { | |
3463 | if (pack_off > p_env->read_size) | |
3464 | goto NextFrame; | |
3465 | p_packd = p_this_ccw->p_buffer+pack_off; | |
3466 | p_packh = (struct clawph *) p_packd; | |
3467 | if ((p_packh->len == 0) || /* all done with this frame? */ | |
3468 | (p_packh->flag != 0)) | |
3469 | goto NextFrame; | |
3470 | bytes_to_mov = p_packh->len; | |
3471 | pack_off += bytes_to_mov+sizeof(struct clawph); | |
3472 | p++; | |
3473 | } else { | |
3474 | bytes_to_mov=p_this_ccw->header.length; | |
3475 | } | |
3476 | if (privptr->mtc_logical_link<0) { | |
3477 | #ifdef DEBUGMSG | |
3478 | printk(KERN_INFO "%s: %s mtc_logical_link < 0 \n", | |
3479 | dev->name,__FUNCTION__); | |
3480 | #endif | |
3481 | ||
3482 | /* | |
3483 | * if More-To-Come is set in this frame then we don't know | |
3484 | * length of entire message, and hence have to allocate | |
3485 | * large buffer */ | |
3486 | ||
3487 | /* We are starting a new envelope */ | |
3488 | privptr->mtc_offset=0; | |
3489 | privptr->mtc_logical_link=link_num; | |
3490 | } | |
3491 | ||
3492 | if (bytes_to_mov > (MAX_ENVELOPE_SIZE- privptr->mtc_offset) ) { | |
3493 | /* error */ | |
3494 | #ifdef DEBUGMSG | |
3495 | printk(KERN_INFO "%s: %s > goto next " | |
3496 | "frame from MoretoComeSkip \n", | |
3497 | dev->name, | |
3498 | __FUNCTION__); | |
3499 | printk(KERN_INFO " bytes_to_mov %d > (MAX_ENVELOPE_" | |
3500 | "SIZE-privptr->mtc_offset %d)\n", | |
3501 | bytes_to_mov,(MAX_ENVELOPE_SIZE- privptr->mtc_offset)); | |
3502 | #endif | |
3503 | privptr->stats.rx_frame_errors++; | |
3504 | goto NextFrame; | |
3505 | } | |
3506 | if (p_env->packing == DO_PACKED) { | |
3507 | memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset, | |
3508 | p_packd+sizeof(struct clawph), bytes_to_mov); | |
3509 | ||
3510 | } else { | |
3511 | memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset, | |
3512 | p_this_ccw->p_buffer, bytes_to_mov); | |
3513 | } | |
3514 | #ifdef DEBUGMSG | |
3515 | printk(KERN_INFO "%s: %s() received data \n", | |
3516 | dev->name,__FUNCTION__); | |
3517 | if (p_env->packing == DO_PACKED) | |
3518 | dumpit((char *)p_packd+sizeof(struct clawph),32); | |
3519 | else | |
3520 | dumpit((char *)p_this_ccw->p_buffer, 32); | |
3521 | printk(KERN_INFO "%s: %s() bytelength %d \n", | |
3522 | dev->name,__FUNCTION__,bytes_to_mov); | |
3523 | #endif | |
3524 | if (mtc_this_frm==0) { | |
3525 | len_of_data=privptr->mtc_offset+bytes_to_mov; | |
3526 | skb=dev_alloc_skb(len_of_data); | |
3527 | if (skb) { | |
3528 | memcpy(skb_put(skb,len_of_data), | |
3529 | privptr->p_mtc_envelope, | |
3530 | len_of_data); | |
3531 | skb->mac.raw=skb->data; | |
3532 | skb->dev=dev; | |
3533 | skb->protocol=htons(ETH_P_IP); | |
3534 | skb->ip_summed=CHECKSUM_UNNECESSARY; | |
3535 | privptr->stats.rx_packets++; | |
3536 | privptr->stats.rx_bytes+=len_of_data; | |
3537 | netif_rx(skb); | |
3538 | #ifdef DEBUGMSG | |
3539 | printk(KERN_INFO "%s: %s() netif_" | |
3540 | "rx(skb) completed \n", | |
3541 | dev->name,__FUNCTION__); | |
3542 | #endif | |
3543 | } | |
3544 | else { | |
3545 | privptr->stats.rx_dropped++; | |
3546 | printk(KERN_WARNING "%s: %s() low on memory\n", | |
3547 | dev->name,__FUNCTION__); | |
3548 | } | |
3549 | privptr->mtc_offset=0; | |
3550 | privptr->mtc_logical_link=-1; | |
3551 | } | |
3552 | else { | |
3553 | privptr->mtc_offset+=bytes_to_mov; | |
3554 | } | |
3555 | if (p_env->packing == DO_PACKED) | |
3556 | goto unpack_next; | |
3557 | NextFrame: | |
3558 | /* | |
3559 | * Remove ThisCCWblock from active read queue, and add it | |
3560 | * to queue of free blocks to be reused. | |
3561 | */ | |
3562 | i++; | |
3563 | p_this_ccw->header.length=0xffff; | |
3564 | p_this_ccw->header.opcode=0xff; | |
3565 | /* | |
3566 | * add this one to the free queue for later reuse | |
3567 | */ | |
3568 | if (p_first_ccw==NULL) { | |
3569 | p_first_ccw = p_this_ccw; | |
3570 | } | |
3571 | else { | |
3572 | p_last_ccw->next = p_this_ccw; | |
3573 | } | |
3574 | p_last_ccw = p_this_ccw; | |
3575 | /* | |
3576 | * chain to next block on active read queue | |
3577 | */ | |
3578 | p_this_ccw = privptr->p_read_active_first; | |
3579 | CLAW_DBF_TEXT_(4,trace,"rxpkt %d",p); | |
3580 | } /* end of while */ | |
3581 | ||
3582 | /* check validity */ | |
3583 | ||
3584 | #ifdef IOTRACE | |
3585 | printk(KERN_INFO "%s:%s processed frame is %d \n", | |
3586 | dev->name,__FUNCTION__,i); | |
3587 | printk(KERN_INFO "%s:%s F:%lx L:%lx\n", | |
3588 | dev->name, | |
3589 | __FUNCTION__, | |
3590 | (unsigned long)p_first_ccw, | |
3591 | (unsigned long)p_last_ccw); | |
3592 | #endif | |
3593 | CLAW_DBF_TEXT_(4,trace,"rxfrm %d",i); | |
3594 | add_claw_reads(dev, p_first_ccw, p_last_ccw); | |
3595 | p_ch=&privptr->channel[READ]; | |
3596 | claw_strt_read(dev, LOCK_YES); | |
3597 | #ifdef FUNCTRACE | |
3598 | printk(KERN_INFO "%s: %s exit on line %d\n", | |
3599 | dev->name, __FUNCTION__, __LINE__); | |
3600 | #endif | |
3601 | return; | |
3602 | } /* end of unpack_read */ | |
3603 | ||
3604 | /*-------------------------------------------------------------------* | |
3605 | * claw_strt_read * | |
3606 | * * | |
3607 | *--------------------------------------------------------------------*/ | |
3608 | static void | |
3609 | claw_strt_read (struct net_device *dev, int lock ) | |
3610 | { | |
3611 | int rc = 0; | |
3612 | __u32 parm; | |
3613 | unsigned long saveflags = 0; | |
3614 | struct claw_privbk *privptr=dev->priv; | |
3615 | struct ccwbk*p_ccwbk; | |
3616 | struct chbk *p_ch; | |
3617 | struct clawh *p_clawh; | |
3618 | p_ch=&privptr->channel[READ]; | |
3619 | ||
3620 | #ifdef FUNCTRACE | |
3621 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
3622 | printk(KERN_INFO "%s: variable lock = %d, dev =\n",dev->name, lock); | |
3623 | dumpit((char *) dev, sizeof(struct net_device)); | |
3624 | #endif | |
3625 | CLAW_DBF_TEXT(4,trace,"StRdNter"); | |
3626 | p_clawh=(struct clawh *)privptr->p_claw_signal_blk; | |
3627 | p_clawh->flag=CLAW_IDLE; /* 0x00 */ | |
3628 | ||
3629 | if ((privptr->p_write_active_first!=NULL && | |
3630 | privptr->p_write_active_first->header.flag!=CLAW_PENDING) || | |
3631 | (privptr->p_read_active_first!=NULL && | |
3632 | privptr->p_read_active_first->header.flag!=CLAW_PENDING )) { | |
3633 | p_clawh->flag=CLAW_BUSY; /* 0xff */ | |
3634 | } | |
3635 | #ifdef DEBUGMSG | |
3636 | printk(KERN_INFO "%s:%s state-%02x\n" , | |
3637 | dev->name,__FUNCTION__, p_ch->claw_state); | |
3638 | #endif | |
3639 | if (lock==LOCK_YES) { | |
3640 | spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags); | |
3641 | } | |
3642 | if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { | |
3643 | #ifdef DEBUGMSG | |
3644 | printk(KERN_INFO "%s: HOT READ started in %s\n" , | |
3645 | dev->name,__FUNCTION__); | |
3646 | p_clawh=(struct clawh *)privptr->p_claw_signal_blk; | |
3647 | dumpit((char *)&p_clawh->flag , 1); | |
3648 | #endif | |
3649 | CLAW_DBF_TEXT(4,trace,"HotRead"); | |
3650 | p_ccwbk=privptr->p_read_active_first; | |
3651 | parm = (unsigned long) p_ch; | |
3652 | rc = ccw_device_start (p_ch->cdev, &p_ccwbk->read, parm, | |
3653 | 0xff, 0); | |
3654 | if (rc != 0) { | |
3655 | ccw_check_return_code(p_ch->cdev, rc); | |
3656 | } | |
3657 | } | |
3658 | else { | |
3659 | #ifdef DEBUGMSG | |
3660 | printk(KERN_INFO "%s: No READ started by %s() In progress\n" , | |
3661 | dev->name,__FUNCTION__); | |
3662 | #endif | |
3663 | CLAW_DBF_TEXT(2,trace,"ReadAct"); | |
3664 | } | |
3665 | ||
3666 | if (lock==LOCK_YES) { | |
3667 | spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); | |
3668 | } | |
3669 | #ifdef FUNCTRACE | |
3670 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3671 | dev->name,__FUNCTION__,__LINE__); | |
3672 | #endif | |
3673 | CLAW_DBF_TEXT(4,trace,"StRdExit"); | |
3674 | return; | |
3675 | } /* end of claw_strt_read */ | |
3676 | ||
3677 | /*-------------------------------------------------------------------* | |
3678 | * claw_strt_out_IO * | |
3679 | * * | |
3680 | *--------------------------------------------------------------------*/ | |
3681 | ||
3682 | static void | |
3683 | claw_strt_out_IO( struct net_device *dev ) | |
3684 | { | |
3685 | int rc = 0; | |
3686 | unsigned long parm; | |
3687 | struct claw_privbk *privptr; | |
3688 | struct chbk *p_ch; | |
3689 | struct ccwbk *p_first_ccw; | |
3690 | ||
3691 | #ifdef FUNCTRACE | |
3692 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3693 | #endif | |
3694 | if (!dev) { | |
3695 | return; | |
3696 | } | |
3697 | privptr=(struct claw_privbk *)dev->priv; | |
3698 | p_ch=&privptr->channel[WRITE]; | |
3699 | ||
3700 | #ifdef DEBUGMSG | |
3701 | printk(KERN_INFO "%s:%s state-%02x\n" , | |
3702 | dev->name,__FUNCTION__,p_ch->claw_state); | |
3703 | #endif | |
3704 | CLAW_DBF_TEXT(4,trace,"strt_io"); | |
3705 | p_first_ccw=privptr->p_write_active_first; | |
3706 | ||
3707 | if (p_ch->claw_state == CLAW_STOP) | |
3708 | return; | |
3709 | if (p_first_ccw == NULL) { | |
3710 | #ifdef FUNCTRACE | |
3711 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3712 | dev->name,__FUNCTION__,__LINE__); | |
3713 | #endif | |
3714 | return; | |
3715 | } | |
3716 | if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { | |
3717 | parm = (unsigned long) p_ch; | |
3718 | #ifdef DEBUGMSG | |
3719 | printk(KERN_INFO "%s:%s do_io \n" ,dev->name,__FUNCTION__); | |
3720 | dumpit((char *)p_first_ccw, sizeof(struct ccwbk)); | |
3721 | #endif | |
3722 | CLAW_DBF_TEXT(2,trace,"StWrtIO"); | |
3723 | rc = ccw_device_start (p_ch->cdev,&p_first_ccw->write, parm, | |
3724 | 0xff, 0); | |
3725 | if (rc != 0) { | |
3726 | ccw_check_return_code(p_ch->cdev, rc); | |
3727 | } | |
3728 | } | |
3729 | dev->trans_start = jiffies; | |
3730 | #ifdef FUNCTRACE | |
3731 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3732 | dev->name,__FUNCTION__,__LINE__); | |
3733 | #endif | |
3734 | ||
3735 | return; | |
3736 | } /* end of claw_strt_out_IO */ | |
3737 | ||
3738 | /*-------------------------------------------------------------------* | |
3739 | * Free write buffers * | |
3740 | * * | |
3741 | *--------------------------------------------------------------------*/ | |
3742 | ||
3743 | static void | |
3744 | claw_free_wrt_buf( struct net_device *dev ) | |
3745 | { | |
3746 | ||
3747 | struct claw_privbk *privptr=(struct claw_privbk *)dev->priv; | |
3748 | struct ccwbk*p_first_ccw; | |
3749 | struct ccwbk*p_last_ccw; | |
3750 | struct ccwbk*p_this_ccw; | |
3751 | struct ccwbk*p_next_ccw; | |
3752 | #ifdef IOTRACE | |
3753 | struct ccwbk*p_buf; | |
3754 | #endif | |
3755 | #ifdef FUNCTRACE | |
3756 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3757 | printk(KERN_INFO "%s: free count = %d variable dev =\n", | |
3758 | dev->name,privptr->write_free_count); | |
3759 | #endif | |
3760 | CLAW_DBF_TEXT(4,trace,"freewrtb"); | |
3761 | /* scan the write queue to free any completed write packets */ | |
3762 | p_first_ccw=NULL; | |
3763 | p_last_ccw=NULL; | |
3764 | #ifdef IOTRACE | |
3765 | printk(KERN_INFO "%s: Dump current CCW chain \n",dev->name ); | |
3766 | p_buf=privptr->p_write_active_first; | |
3767 | while (p_buf!=NULL) { | |
3768 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
3769 | p_buf=p_buf->next; | |
3770 | } | |
3771 | if (p_buf==NULL) { | |
3772 | printk(KERN_INFO "%s: privptr->p_write_" | |
3773 | "active_first==NULL\n",dev->name ); | |
3774 | } | |
3775 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
3776 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
3777 | #endif | |
3778 | p_this_ccw=privptr->p_write_active_first; | |
3779 | while ( (p_this_ccw!=NULL) && (p_this_ccw->header.flag!=CLAW_PENDING)) | |
3780 | { | |
3781 | p_next_ccw = p_this_ccw->next; | |
3782 | if (((p_next_ccw!=NULL) && | |
3783 | (p_next_ccw->header.flag!=CLAW_PENDING)) || | |
3784 | ((p_this_ccw == privptr->p_write_active_last) && | |
3785 | (p_this_ccw->header.flag!=CLAW_PENDING))) { | |
3786 | /* The next CCW is OK or this is */ | |
3787 | /* the last CCW...free it @A1A */ | |
3788 | privptr->p_write_active_first=p_this_ccw->next; | |
3789 | p_this_ccw->header.flag=CLAW_PENDING; | |
3790 | p_this_ccw->next=privptr->p_write_free_chain; | |
3791 | privptr->p_write_free_chain=p_this_ccw; | |
3792 | ++privptr->write_free_count; | |
3793 | privptr->stats.tx_bytes+= p_this_ccw->write.count; | |
3794 | p_this_ccw=privptr->p_write_active_first; | |
3795 | privptr->stats.tx_packets++; | |
3796 | } | |
3797 | else { | |
3798 | break; | |
3799 | } | |
3800 | } | |
3801 | if (privptr->write_free_count!=0) { | |
3802 | claw_clearbit_busy(TB_NOBUFFER,dev); | |
3803 | } | |
3804 | /* whole chain removed? */ | |
3805 | if (privptr->p_write_active_first==NULL) { | |
3806 | privptr->p_write_active_last=NULL; | |
3807 | #ifdef DEBUGMSG | |
3808 | printk(KERN_INFO "%s:%s p_write_" | |
3809 | "active_first==NULL\n",dev->name,__FUNCTION__); | |
3810 | #endif | |
3811 | } | |
3812 | #ifdef IOTRACE | |
3813 | printk(KERN_INFO "%s: Dump arranged CCW chain \n",dev->name ); | |
3814 | p_buf=privptr->p_write_active_first; | |
3815 | while (p_buf!=NULL) { | |
3816 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
3817 | p_buf=p_buf->next; | |
3818 | } | |
3819 | if (p_buf==NULL) { | |
3820 | printk(KERN_INFO "%s: privptr->p_write_active_" | |
3821 | "first==NULL\n",dev->name ); | |
3822 | } | |
3823 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
3824 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
3825 | #endif | |
3826 | ||
3827 | CLAW_DBF_TEXT_(4,trace,"FWC=%d",privptr->write_free_count); | |
3828 | #ifdef FUNCTRACE | |
3829 | printk(KERN_INFO "%s:%s Exit on line %d free_count =%d\n", | |
3830 | dev->name,__FUNCTION__, __LINE__,privptr->write_free_count); | |
3831 | #endif | |
3832 | return; | |
3833 | } | |
3834 | ||
3835 | /*-------------------------------------------------------------------* | |
3836 | * claw free netdevice * | |
3837 | * * | |
3838 | *--------------------------------------------------------------------*/ | |
3839 | static void | |
3840 | claw_free_netdevice(struct net_device * dev, int free_dev) | |
3841 | { | |
3842 | struct claw_privbk *privptr; | |
3843 | #ifdef FUNCTRACE | |
3844 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3845 | #endif | |
3846 | CLAW_DBF_TEXT(2,setup,"free_dev"); | |
3847 | ||
3848 | if (!dev) | |
3849 | return; | |
3850 | CLAW_DBF_TEXT_(2,setup,"%s",dev->name); | |
3851 | privptr = dev->priv; | |
3852 | if (dev->flags & IFF_RUNNING) | |
3853 | claw_release(dev); | |
3854 | if (privptr) { | |
3855 | privptr->channel[READ].ndev = NULL; /* say it's free */ | |
3856 | } | |
3857 | dev->priv=NULL; | |
3858 | #ifdef MODULE | |
3859 | if (free_dev) { | |
3860 | free_netdev(dev); | |
3861 | } | |
3862 | #endif | |
3863 | CLAW_DBF_TEXT(2,setup,"feee_ok"); | |
3864 | #ifdef FUNCTRACE | |
3865 | printk(KERN_INFO "%s:%s Exit\n",dev->name,__FUNCTION__); | |
3866 | #endif | |
3867 | } | |
3868 | ||
3869 | /** | |
3870 | * Claw init netdevice | |
3871 | * Initialize everything of the net device except the name and the | |
3872 | * channel structs. | |
3873 | */ | |
3874 | static void | |
3875 | claw_init_netdevice(struct net_device * dev) | |
3876 | { | |
3877 | #ifdef FUNCTRACE | |
3878 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3879 | #endif | |
3880 | CLAW_DBF_TEXT(2,setup,"init_dev"); | |
3881 | CLAW_DBF_TEXT_(2,setup,"%s",dev->name); | |
3882 | if (!dev) { | |
3883 | printk(KERN_WARNING "claw:%s BAD Device exit line %d\n", | |
3884 | __FUNCTION__,__LINE__); | |
3885 | CLAW_DBF_TEXT(2,setup,"baddev"); | |
3886 | return; | |
3887 | } | |
3888 | dev->mtu = CLAW_DEFAULT_MTU_SIZE; | |
3889 | dev->hard_start_xmit = claw_tx; | |
3890 | dev->open = claw_open; | |
3891 | dev->stop = claw_release; | |
3892 | dev->get_stats = claw_stats; | |
3893 | dev->change_mtu = claw_change_mtu; | |
3894 | dev->hard_header_len = 0; | |
3895 | dev->addr_len = 0; | |
3896 | dev->type = ARPHRD_SLIP; | |
3897 | dev->tx_queue_len = 1300; | |
3898 | dev->flags = IFF_POINTOPOINT | IFF_NOARP; | |
3899 | SET_MODULE_OWNER(dev); | |
3900 | #ifdef FUNCTRACE | |
3901 | printk(KERN_INFO "%s:%s Exit\n",dev->name,__FUNCTION__); | |
3902 | #endif | |
3903 | CLAW_DBF_TEXT(2,setup,"initok"); | |
3904 | return; | |
3905 | } | |
3906 | ||
3907 | /** | |
3908 | * Init a new channel in the privptr->channel[i]. | |
3909 | * | |
3910 | * @param cdev The ccw_device to be added. | |
3911 | * | |
3912 | * @return 0 on success, !0 on error. | |
3913 | */ | |
3914 | static int | |
3915 | add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) | |
3916 | { | |
3917 | struct chbk *p_ch; | |
3918 | ||
3919 | #ifdef FUNCTRACE | |
3920 | printk(KERN_INFO "%s:%s Enter\n",cdev->dev.bus_id,__FUNCTION__); | |
3921 | #endif | |
3922 | CLAW_DBF_TEXT_(2,setup,"%s",cdev->dev.bus_id); | |
3923 | privptr->channel[i].flag = i+1; /* Read is 1 Write is 2 */ | |
3924 | p_ch = &privptr->channel[i]; | |
3925 | p_ch->cdev = cdev; | |
3926 | snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", cdev->dev.bus_id); | |
3927 | sscanf(cdev->dev.bus_id+4,"%x",&p_ch->devno); | |
3928 | if ((p_ch->irb = kmalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { | |
3929 | printk(KERN_WARNING "%s Out of memory in %s for irb\n", | |
3930 | p_ch->id,__FUNCTION__); | |
3931 | #ifdef FUNCTRACE | |
3932 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3933 | p_ch->id,__FUNCTION__,__LINE__); | |
3934 | #endif | |
3935 | return -ENOMEM; | |
3936 | } | |
3937 | memset(p_ch->irb, 0, sizeof (struct irb)); | |
3938 | #ifdef FUNCTRACE | |
3939 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3940 | cdev->dev.bus_id,__FUNCTION__,__LINE__); | |
3941 | #endif | |
3942 | return 0; | |
3943 | } | |
3944 | ||
3945 | ||
3946 | /** | |
3947 | * | |
3948 | * Setup an interface. | |
3949 | * | |
3950 | * @param cgdev Device to be setup. | |
3951 | * | |
3952 | * @returns 0 on success, !0 on failure. | |
3953 | */ | |
3954 | static int | |
3955 | claw_new_device(struct ccwgroup_device *cgdev) | |
3956 | { | |
3957 | struct claw_privbk *privptr; | |
3958 | struct claw_env *p_env; | |
3959 | struct net_device *dev; | |
3960 | int ret; | |
3961 | ||
3962 | pr_debug("%s() called\n", __FUNCTION__); | |
3963 | printk(KERN_INFO "claw: add for %s\n",cgdev->cdev[READ]->dev.bus_id); | |
3964 | CLAW_DBF_TEXT(2,setup,"new_dev"); | |
3965 | privptr = cgdev->dev.driver_data; | |
3966 | cgdev->cdev[READ]->dev.driver_data = privptr; | |
3967 | cgdev->cdev[WRITE]->dev.driver_data = privptr; | |
3968 | if (!privptr) | |
3969 | return -ENODEV; | |
3970 | p_env = privptr->p_env; | |
3971 | sscanf(cgdev->cdev[READ]->dev.bus_id+4,"%x", | |
3972 | &p_env->devno[READ]); | |
3973 | sscanf(cgdev->cdev[WRITE]->dev.bus_id+4,"%x", | |
3974 | &p_env->devno[WRITE]); | |
3975 | ret = add_channel(cgdev->cdev[0],0,privptr); | |
3976 | if (ret == 0) | |
3977 | ret = add_channel(cgdev->cdev[1],1,privptr); | |
3978 | if (ret != 0) { | |
3979 | printk(KERN_WARNING | |
3980 | "add channel failed " | |
3981 | "with ret = %d\n", ret); | |
3982 | goto out; | |
3983 | } | |
3984 | ret = ccw_device_set_online(cgdev->cdev[READ]); | |
3985 | if (ret != 0) { | |
3986 | printk(KERN_WARNING | |
3987 | "claw: ccw_device_set_online %s READ failed " | |
3988 | "with ret = %d\n",cgdev->cdev[READ]->dev.bus_id,ret); | |
3989 | goto out; | |
3990 | } | |
3991 | ret = ccw_device_set_online(cgdev->cdev[WRITE]); | |
3992 | if (ret != 0) { | |
3993 | printk(KERN_WARNING | |
3994 | "claw: ccw_device_set_online %s WRITE failed " | |
3995 | "with ret = %d\n",cgdev->cdev[WRITE]->dev.bus_id, ret); | |
3996 | goto out; | |
3997 | } | |
3998 | dev = alloc_netdev(0,"claw%d",claw_init_netdevice); | |
3999 | if (!dev) { | |
4000 | printk(KERN_WARNING "%s:alloc_netdev failed\n",__FUNCTION__); | |
4001 | goto out; | |
4002 | } | |
4003 | dev->priv = privptr; | |
4004 | cgdev->dev.driver_data = privptr; | |
4005 | cgdev->cdev[READ]->dev.driver_data = privptr; | |
4006 | cgdev->cdev[WRITE]->dev.driver_data = privptr; | |
4007 | /* sysfs magic */ | |
4008 | SET_NETDEV_DEV(dev, &cgdev->dev); | |
4009 | if (register_netdev(dev) != 0) { | |
4010 | claw_free_netdevice(dev, 1); | |
4011 | CLAW_DBF_TEXT(2,trace,"regfail"); | |
4012 | goto out; | |
4013 | } | |
4014 | dev->flags &=~IFF_RUNNING; | |
4015 | if (privptr->buffs_alloc == 0) { | |
4016 | ret=init_ccw_bk(dev); | |
4017 | if (ret !=0) { | |
4018 | printk(KERN_WARNING | |
4019 | "claw: init_ccw_bk failed with ret=%d\n", ret); | |
4020 | unregister_netdev(dev); | |
4021 | claw_free_netdevice(dev,1); | |
4022 | CLAW_DBF_TEXT(2,trace,"ccwmem"); | |
4023 | goto out; | |
4024 | } | |
4025 | } | |
4026 | privptr->channel[READ].ndev = dev; | |
4027 | privptr->channel[WRITE].ndev = dev; | |
4028 | privptr->p_env->ndev = dev; | |
4029 | ||
4030 | printk(KERN_INFO "%s:readsize=%d writesize=%d " | |
4031 | "readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n", | |
4032 | dev->name, p_env->read_size, | |
4033 | p_env->write_size, p_env->read_buffers, | |
4034 | p_env->write_buffers, p_env->devno[READ], | |
4035 | p_env->devno[WRITE]); | |
4036 | printk(KERN_INFO "%s:host_name:%.8s, adapter_name " | |
4037 | ":%.8s api_type: %.8s\n", | |
4038 | dev->name, p_env->host_name, | |
4039 | p_env->adapter_name , p_env->api_type); | |
4040 | return 0; | |
4041 | out: | |
4042 | ccw_device_set_offline(cgdev->cdev[1]); | |
4043 | ccw_device_set_offline(cgdev->cdev[0]); | |
4044 | ||
4045 | return -ENODEV; | |
4046 | } | |
4047 | ||
4048 | static void | |
4049 | claw_purge_skb_queue(struct sk_buff_head *q) | |
4050 | { | |
4051 | struct sk_buff *skb; | |
4052 | ||
4053 | CLAW_DBF_TEXT(4,trace,"purgque"); | |
4054 | ||
4055 | while ((skb = skb_dequeue(q))) { | |
4056 | atomic_dec(&skb->users); | |
8e84c801 | 4057 | dev_kfree_skb_any(skb); |
1da177e4 LT |
4058 | } |
4059 | } | |
4060 | ||
4061 | /** | |
4062 | * Shutdown an interface. | |
4063 | * | |
4064 | * @param cgdev Device to be shut down. | |
4065 | * | |
4066 | * @returns 0 on success, !0 on failure. | |
4067 | */ | |
4068 | static int | |
4069 | claw_shutdown_device(struct ccwgroup_device *cgdev) | |
4070 | { | |
4071 | struct claw_privbk *priv; | |
4072 | struct net_device *ndev; | |
4073 | int ret; | |
4074 | ||
4075 | pr_debug("%s() called\n", __FUNCTION__); | |
4076 | CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); | |
4077 | priv = cgdev->dev.driver_data; | |
4078 | if (!priv) | |
4079 | return -ENODEV; | |
4080 | ndev = priv->channel[READ].ndev; | |
4081 | if (ndev) { | |
4082 | /* Close the device */ | |
4083 | printk(KERN_INFO | |
4084 | "%s: shuting down \n",ndev->name); | |
4085 | if (ndev->flags & IFF_RUNNING) | |
4086 | ret = claw_release(ndev); | |
4087 | ndev->flags &=~IFF_RUNNING; | |
4088 | unregister_netdev(ndev); | |
4089 | ndev->priv = NULL; /* cgdev data, not ndev's to free */ | |
4090 | claw_free_netdevice(ndev, 1); | |
4091 | priv->channel[READ].ndev = NULL; | |
4092 | priv->channel[WRITE].ndev = NULL; | |
4093 | priv->p_env->ndev = NULL; | |
4094 | } | |
4095 | ccw_device_set_offline(cgdev->cdev[1]); | |
4096 | ccw_device_set_offline(cgdev->cdev[0]); | |
4097 | return 0; | |
4098 | } | |
4099 | ||
4100 | static void | |
4101 | claw_remove_device(struct ccwgroup_device *cgdev) | |
4102 | { | |
4103 | struct claw_privbk *priv; | |
4104 | ||
4105 | pr_debug("%s() called\n", __FUNCTION__); | |
4106 | CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); | |
4107 | priv = cgdev->dev.driver_data; | |
4108 | if (!priv) { | |
4109 | printk(KERN_WARNING "claw: %s() no Priv exiting\n",__FUNCTION__); | |
4110 | return; | |
4111 | } | |
4112 | printk(KERN_INFO "claw: %s() called %s will be removed.\n", | |
4113 | __FUNCTION__,cgdev->cdev[0]->dev.bus_id); | |
4114 | if (cgdev->state == CCWGROUP_ONLINE) | |
4115 | claw_shutdown_device(cgdev); | |
4116 | claw_remove_files(&cgdev->dev); | |
17fd682e JJ |
4117 | kfree(priv->p_mtc_envelope); |
4118 | priv->p_mtc_envelope=NULL; | |
4119 | kfree(priv->p_env); | |
4120 | priv->p_env=NULL; | |
4121 | kfree(priv->channel[0].irb); | |
4122 | priv->channel[0].irb=NULL; | |
4123 | kfree(priv->channel[1].irb); | |
4124 | priv->channel[1].irb=NULL; | |
1da177e4 LT |
4125 | kfree(priv); |
4126 | cgdev->dev.driver_data=NULL; | |
4127 | cgdev->cdev[READ]->dev.driver_data = NULL; | |
4128 | cgdev->cdev[WRITE]->dev.driver_data = NULL; | |
4129 | put_device(&cgdev->dev); | |
4130 | } | |
4131 | ||
4132 | ||
4133 | /* | |
4134 | * sysfs attributes | |
4135 | */ | |
4136 | static ssize_t | |
3fd3c0a5 | 4137 | claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4138 | { |
4139 | struct claw_privbk *priv; | |
4140 | struct claw_env * p_env; | |
4141 | ||
4142 | priv = dev->driver_data; | |
4143 | if (!priv) | |
4144 | return -ENODEV; | |
4145 | p_env = priv->p_env; | |
4146 | return sprintf(buf, "%s\n",p_env->host_name); | |
4147 | } | |
4148 | ||
4149 | static ssize_t | |
3fd3c0a5 | 4150 | claw_hname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4151 | { |
4152 | struct claw_privbk *priv; | |
4153 | struct claw_env * p_env; | |
4154 | ||
4155 | priv = dev->driver_data; | |
4156 | if (!priv) | |
4157 | return -ENODEV; | |
4158 | p_env = priv->p_env; | |
4159 | if (count > MAX_NAME_LEN+1) | |
4160 | return -EINVAL; | |
4161 | memset(p_env->host_name, 0x20, MAX_NAME_LEN); | |
4162 | strncpy(p_env->host_name,buf, count); | |
4163 | p_env->host_name[count-1] = 0x20; /* clear extra 0x0a */ | |
4164 | p_env->host_name[MAX_NAME_LEN] = 0x00; | |
4165 | CLAW_DBF_TEXT(2,setup,"HstnSet"); | |
4166 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->host_name); | |
4167 | ||
4168 | return count; | |
4169 | } | |
4170 | ||
4171 | static DEVICE_ATTR(host_name, 0644, claw_hname_show, claw_hname_write); | |
4172 | ||
4173 | static ssize_t | |
3fd3c0a5 | 4174 | claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4175 | { |
4176 | struct claw_privbk *priv; | |
4177 | struct claw_env * p_env; | |
4178 | ||
4179 | priv = dev->driver_data; | |
4180 | if (!priv) | |
4181 | return -ENODEV; | |
4182 | p_env = priv->p_env; | |
4183 | return sprintf(buf, "%s\n",p_env->adapter_name); | |
4184 | } | |
4185 | ||
4186 | static ssize_t | |
3fd3c0a5 | 4187 | claw_adname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4188 | { |
4189 | struct claw_privbk *priv; | |
4190 | struct claw_env * p_env; | |
4191 | ||
4192 | priv = dev->driver_data; | |
4193 | if (!priv) | |
4194 | return -ENODEV; | |
4195 | p_env = priv->p_env; | |
4196 | if (count > MAX_NAME_LEN+1) | |
4197 | return -EINVAL; | |
4198 | memset(p_env->adapter_name, 0x20, MAX_NAME_LEN); | |
4199 | strncpy(p_env->adapter_name,buf, count); | |
4200 | p_env->adapter_name[count-1] = 0x20; /* clear extra 0x0a */ | |
4201 | p_env->adapter_name[MAX_NAME_LEN] = 0x00; | |
4202 | CLAW_DBF_TEXT(2,setup,"AdnSet"); | |
4203 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->adapter_name); | |
4204 | ||
4205 | return count; | |
4206 | } | |
4207 | ||
4208 | static DEVICE_ATTR(adapter_name, 0644, claw_adname_show, claw_adname_write); | |
4209 | ||
4210 | static ssize_t | |
3fd3c0a5 | 4211 | claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4212 | { |
4213 | struct claw_privbk *priv; | |
4214 | struct claw_env * p_env; | |
4215 | ||
4216 | priv = dev->driver_data; | |
4217 | if (!priv) | |
4218 | return -ENODEV; | |
4219 | p_env = priv->p_env; | |
4220 | return sprintf(buf, "%s\n", | |
4221 | p_env->api_type); | |
4222 | } | |
4223 | ||
4224 | static ssize_t | |
3fd3c0a5 | 4225 | claw_apname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4226 | { |
4227 | struct claw_privbk *priv; | |
4228 | struct claw_env * p_env; | |
4229 | ||
4230 | priv = dev->driver_data; | |
4231 | if (!priv) | |
4232 | return -ENODEV; | |
4233 | p_env = priv->p_env; | |
4234 | if (count > MAX_NAME_LEN+1) | |
4235 | return -EINVAL; | |
4236 | memset(p_env->api_type, 0x20, MAX_NAME_LEN); | |
4237 | strncpy(p_env->api_type,buf, count); | |
4238 | p_env->api_type[count-1] = 0x20; /* we get a loose 0x0a */ | |
4239 | p_env->api_type[MAX_NAME_LEN] = 0x00; | |
4240 | if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
4241 | p_env->read_size=DEF_PACK_BUFSIZE; | |
4242 | p_env->write_size=DEF_PACK_BUFSIZE; | |
4243 | p_env->packing=PACKING_ASK; | |
4244 | CLAW_DBF_TEXT(2,setup,"PACKING"); | |
4245 | } | |
4246 | else { | |
4247 | p_env->packing=0; | |
4248 | p_env->read_size=CLAW_FRAME_SIZE; | |
4249 | p_env->write_size=CLAW_FRAME_SIZE; | |
4250 | CLAW_DBF_TEXT(2,setup,"ApiSet"); | |
4251 | } | |
4252 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->api_type); | |
4253 | return count; | |
4254 | } | |
4255 | ||
4256 | static DEVICE_ATTR(api_type, 0644, claw_apname_show, claw_apname_write); | |
4257 | ||
4258 | static ssize_t | |
3fd3c0a5 | 4259 | claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4260 | { |
4261 | struct claw_privbk *priv; | |
4262 | struct claw_env * p_env; | |
4263 | ||
4264 | priv = dev->driver_data; | |
4265 | if (!priv) | |
4266 | return -ENODEV; | |
4267 | p_env = priv->p_env; | |
4268 | return sprintf(buf, "%d\n", p_env->write_buffers); | |
4269 | } | |
4270 | ||
4271 | static ssize_t | |
3fd3c0a5 | 4272 | claw_wbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4273 | { |
4274 | struct claw_privbk *priv; | |
4275 | struct claw_env * p_env; | |
4276 | int nnn,max; | |
4277 | ||
4278 | priv = dev->driver_data; | |
4279 | if (!priv) | |
4280 | return -ENODEV; | |
4281 | p_env = priv->p_env; | |
4282 | sscanf(buf, "%i", &nnn); | |
4283 | if (p_env->packing) { | |
4284 | max = 64; | |
4285 | } | |
4286 | else { | |
4287 | max = 512; | |
4288 | } | |
4289 | if ((nnn > max ) || (nnn < 2)) | |
4290 | return -EINVAL; | |
4291 | p_env->write_buffers = nnn; | |
4292 | CLAW_DBF_TEXT(2,setup,"Wbufset"); | |
4293 | CLAW_DBF_TEXT_(2,setup,"WB=%d",p_env->write_buffers); | |
4294 | return count; | |
4295 | } | |
4296 | ||
4297 | static DEVICE_ATTR(write_buffer, 0644, claw_wbuff_show, claw_wbuff_write); | |
4298 | ||
4299 | static ssize_t | |
3fd3c0a5 | 4300 | claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4301 | { |
4302 | struct claw_privbk *priv; | |
4303 | struct claw_env * p_env; | |
4304 | ||
4305 | priv = dev->driver_data; | |
4306 | if (!priv) | |
4307 | return -ENODEV; | |
4308 | p_env = priv->p_env; | |
4309 | return sprintf(buf, "%d\n", p_env->read_buffers); | |
4310 | } | |
4311 | ||
4312 | static ssize_t | |
3fd3c0a5 | 4313 | claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4314 | { |
4315 | struct claw_privbk *priv; | |
4316 | struct claw_env *p_env; | |
4317 | int nnn,max; | |
4318 | ||
4319 | priv = dev->driver_data; | |
4320 | if (!priv) | |
4321 | return -ENODEV; | |
4322 | p_env = priv->p_env; | |
4323 | sscanf(buf, "%i", &nnn); | |
4324 | if (p_env->packing) { | |
4325 | max = 64; | |
4326 | } | |
4327 | else { | |
4328 | max = 512; | |
4329 | } | |
4330 | if ((nnn > max ) || (nnn < 2)) | |
4331 | return -EINVAL; | |
4332 | p_env->read_buffers = nnn; | |
4333 | CLAW_DBF_TEXT(2,setup,"Rbufset"); | |
4334 | CLAW_DBF_TEXT_(2,setup,"RB=%d",p_env->read_buffers); | |
4335 | return count; | |
4336 | } | |
4337 | ||
4338 | static DEVICE_ATTR(read_buffer, 0644, claw_rbuff_show, claw_rbuff_write); | |
4339 | ||
4340 | static struct attribute *claw_attr[] = { | |
4341 | &dev_attr_read_buffer.attr, | |
4342 | &dev_attr_write_buffer.attr, | |
4343 | &dev_attr_adapter_name.attr, | |
4344 | &dev_attr_api_type.attr, | |
4345 | &dev_attr_host_name.attr, | |
4346 | NULL, | |
4347 | }; | |
4348 | ||
4349 | static struct attribute_group claw_attr_group = { | |
4350 | .attrs = claw_attr, | |
4351 | }; | |
4352 | ||
4353 | static int | |
4354 | claw_add_files(struct device *dev) | |
4355 | { | |
4356 | pr_debug("%s() called\n", __FUNCTION__); | |
4357 | CLAW_DBF_TEXT(2,setup,"add_file"); | |
4358 | return sysfs_create_group(&dev->kobj, &claw_attr_group); | |
4359 | } | |
4360 | ||
4361 | static void | |
4362 | claw_remove_files(struct device *dev) | |
4363 | { | |
4364 | pr_debug("%s() called\n", __FUNCTION__); | |
4365 | CLAW_DBF_TEXT(2,setup,"rem_file"); | |
4366 | sysfs_remove_group(&dev->kobj, &claw_attr_group); | |
4367 | } | |
4368 | ||
4369 | /*--------------------------------------------------------------------* | |
4370 | * claw_init and cleanup * | |
4371 | *---------------------------------------------------------------------*/ | |
4372 | ||
4373 | static void __exit | |
4374 | claw_cleanup(void) | |
4375 | { | |
4376 | unregister_cu3088_discipline(&claw_group_driver); | |
4377 | claw_unregister_debug_facility(); | |
4378 | printk(KERN_INFO "claw: Driver unloaded\n"); | |
4379 | ||
4380 | } | |
4381 | ||
4382 | /** | |
4383 | * Initialize module. | |
4384 | * This is called just after the module is loaded. | |
4385 | * | |
4386 | * @return 0 on success, !0 on error. | |
4387 | */ | |
4388 | static int __init | |
4389 | claw_init(void) | |
4390 | { | |
4391 | int ret = 0; | |
e018ba1f | 4392 | printk(KERN_INFO "claw: starting driver\n"); |
1da177e4 LT |
4393 | |
4394 | #ifdef FUNCTRACE | |
4395 | printk(KERN_INFO "claw: %s() enter \n",__FUNCTION__); | |
4396 | #endif | |
4397 | ret = claw_register_debug_facility(); | |
4398 | if (ret) { | |
4399 | printk(KERN_WARNING "claw: %s() debug_register failed %d\n", | |
4400 | __FUNCTION__,ret); | |
4401 | return ret; | |
4402 | } | |
4403 | CLAW_DBF_TEXT(2,setup,"init_mod"); | |
4404 | ret = register_cu3088_discipline(&claw_group_driver); | |
4405 | if (ret) { | |
4406 | claw_unregister_debug_facility(); | |
4407 | printk(KERN_WARNING "claw; %s() cu3088 register failed %d\n", | |
4408 | __FUNCTION__,ret); | |
4409 | } | |
4410 | #ifdef FUNCTRACE | |
4411 | printk(KERN_INFO "claw: %s() exit \n",__FUNCTION__); | |
4412 | #endif | |
4413 | return ret; | |
4414 | } | |
4415 | ||
4416 | module_init(claw_init); | |
4417 | module_exit(claw_cleanup); | |
4418 | ||
4419 | ||
4420 | ||
4421 | /*--------------------------------------------------------------------* | |
4422 | * End of File * | |
4423 | *---------------------------------------------------------------------*/ | |
4424 | ||
4425 |