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1da177e4 LT |
1 | /* |
2 | * drivers/s390/net/claw.c | |
3 | * ESCON CLAW network driver | |
4 | * | |
5 | * $Revision: 1.35 $ $Date: 2005/03/24 12:25:38 $ | |
6 | * | |
7 | * Linux fo zSeries version | |
8 | * Copyright (C) 2002,2005 IBM Corporation | |
9 | * Author(s) Original code written by: | |
10 | * Kazuo Iimura (iimura@jp.ibm.com) | |
11 | * Rewritten by | |
12 | * Andy Richter (richtera@us.ibm.com) | |
13 | * Marc Price (mwprice@us.ibm.com) | |
14 | * | |
15 | * sysfs parms: | |
16 | * group x.x.rrrr,x.x.wwww | |
17 | * read_buffer nnnnnnn | |
18 | * write_buffer nnnnnn | |
19 | * host_name aaaaaaaa | |
20 | * adapter_name aaaaaaaa | |
21 | * api_type aaaaaaaa | |
22 | * | |
23 | * eg. | |
24 | * group 0.0.0200 0.0.0201 | |
25 | * read_buffer 25 | |
26 | * write_buffer 20 | |
27 | * host_name LINUX390 | |
28 | * adapter_name RS6K | |
29 | * api_type TCPIP | |
30 | * | |
31 | * where | |
32 | * | |
33 | * The device id is decided by the order entries | |
34 | * are added to the group the first is claw0 the second claw1 | |
35 | * up to CLAW_MAX_DEV | |
36 | * | |
37 | * rrrr - the first of 2 consecutive device addresses used for the | |
38 | * CLAW protocol. | |
39 | * The specified address is always used as the input (Read) | |
40 | * channel and the next address is used as the output channel. | |
41 | * | |
42 | * wwww - the second of 2 consecutive device addresses used for | |
43 | * the CLAW protocol. | |
44 | * The specified address is always used as the output | |
45 | * channel and the previous address is used as the input channel. | |
46 | * | |
47 | * read_buffer - specifies number of input buffers to allocate. | |
48 | * write_buffer - specifies number of output buffers to allocate. | |
49 | * host_name - host name | |
50 | * adaptor_name - adaptor name | |
51 | * api_type - API type TCPIP or API will be sent and expected | |
52 | * as ws_name | |
53 | * | |
54 | * Note the following requirements: | |
55 | * 1) host_name must match the configured adapter_name on the remote side | |
56 | * 2) adaptor_name must match the configured host name on the remote side | |
57 | * | |
58 | * Change History | |
59 | * 1.00 Initial release shipped | |
60 | * 1.10 Changes for Buffer allocation | |
61 | * 1.15 Changed for 2.6 Kernel No longer compiles on 2.4 or lower | |
62 | * 1.25 Added Packing support | |
63 | */ | |
64 | #include <asm/bitops.h> | |
65 | #include <asm/ccwdev.h> | |
66 | #include <asm/ccwgroup.h> | |
67 | #include <asm/debug.h> | |
68 | #include <asm/idals.h> | |
69 | #include <asm/io.h> | |
70 | ||
71 | #include <linux/ctype.h> | |
72 | #include <linux/delay.h> | |
73 | #include <linux/errno.h> | |
74 | #include <linux/if_arp.h> | |
75 | #include <linux/init.h> | |
76 | #include <linux/interrupt.h> | |
77 | #include <linux/ip.h> | |
78 | #include <linux/kernel.h> | |
79 | #include <linux/module.h> | |
80 | #include <linux/netdevice.h> | |
81 | #include <linux/etherdevice.h> | |
82 | #include <linux/proc_fs.h> | |
83 | #include <linux/sched.h> | |
84 | #include <linux/signal.h> | |
85 | #include <linux/skbuff.h> | |
86 | #include <linux/slab.h> | |
87 | #include <linux/string.h> | |
88 | #include <linux/tcp.h> | |
89 | #include <linux/timer.h> | |
90 | #include <linux/types.h> | |
91 | #include <linux/version.h> | |
92 | ||
93 | #include "cu3088.h" | |
94 | #include "claw.h" | |
95 | ||
96 | MODULE_AUTHOR("Andy Richter <richtera@us.ibm.com>"); | |
97 | MODULE_DESCRIPTION("Linux for zSeries CLAW Driver\n" \ | |
98 | "Copyright 2000,2005 IBM Corporation\n"); | |
99 | MODULE_LICENSE("GPL"); | |
100 | ||
101 | /* Debugging is based on DEBUGMSG, IOTRACE, or FUNCTRACE options: | |
102 | DEBUGMSG - Enables output of various debug messages in the code | |
103 | IOTRACE - Enables output of CCW and other IO related traces | |
104 | FUNCTRACE - Enables output of function entry/exit trace | |
105 | Define any combination of above options to enable tracing | |
106 | ||
107 | CLAW also uses the s390dbf file system see claw_trace and claw_setup | |
108 | */ | |
109 | ||
110 | /* following enables tracing */ | |
111 | //#define DEBUGMSG | |
112 | //#define IOTRACE | |
113 | //#define FUNCTRACE | |
114 | ||
115 | #ifdef DEBUGMSG | |
116 | #define DEBUG | |
117 | #endif | |
118 | ||
119 | #ifdef IOTRACE | |
120 | #define DEBUG | |
121 | #endif | |
122 | ||
123 | #ifdef FUNCTRACE | |
124 | #define DEBUG | |
125 | #endif | |
126 | ||
127 | char debug_buffer[255]; | |
128 | /** | |
129 | * Debug Facility Stuff | |
130 | */ | |
131 | static debug_info_t *claw_dbf_setup; | |
132 | static debug_info_t *claw_dbf_trace; | |
133 | ||
134 | /** | |
135 | * CLAW Debug Facility functions | |
136 | */ | |
137 | static void | |
138 | claw_unregister_debug_facility(void) | |
139 | { | |
140 | if (claw_dbf_setup) | |
141 | debug_unregister(claw_dbf_setup); | |
142 | if (claw_dbf_trace) | |
143 | debug_unregister(claw_dbf_trace); | |
144 | } | |
145 | ||
146 | static int | |
147 | claw_register_debug_facility(void) | |
148 | { | |
66a464db MH |
149 | claw_dbf_setup = debug_register("claw_setup", 2, 1, 8); |
150 | claw_dbf_trace = debug_register("claw_trace", 2, 2, 8); | |
1da177e4 LT |
151 | if (claw_dbf_setup == NULL || claw_dbf_trace == NULL) { |
152 | printk(KERN_WARNING "Not enough memory for debug facility.\n"); | |
153 | claw_unregister_debug_facility(); | |
154 | return -ENOMEM; | |
155 | } | |
156 | debug_register_view(claw_dbf_setup, &debug_hex_ascii_view); | |
157 | debug_set_level(claw_dbf_setup, 2); | |
158 | debug_register_view(claw_dbf_trace, &debug_hex_ascii_view); | |
159 | debug_set_level(claw_dbf_trace, 2); | |
160 | return 0; | |
161 | } | |
162 | ||
163 | static inline void | |
164 | claw_set_busy(struct net_device *dev) | |
165 | { | |
166 | ((struct claw_privbk *) dev->priv)->tbusy=1; | |
167 | eieio(); | |
168 | } | |
169 | ||
170 | static inline void | |
171 | claw_clear_busy(struct net_device *dev) | |
172 | { | |
173 | clear_bit(0, &(((struct claw_privbk *) dev->priv)->tbusy)); | |
174 | netif_wake_queue(dev); | |
175 | eieio(); | |
176 | } | |
177 | ||
178 | static inline int | |
179 | claw_check_busy(struct net_device *dev) | |
180 | { | |
181 | eieio(); | |
182 | return ((struct claw_privbk *) dev->priv)->tbusy; | |
183 | } | |
184 | ||
185 | static inline void | |
186 | claw_setbit_busy(int nr,struct net_device *dev) | |
187 | { | |
188 | netif_stop_queue(dev); | |
189 | set_bit(nr, (void *)&(((struct claw_privbk *)dev->priv)->tbusy)); | |
190 | } | |
191 | ||
192 | static inline void | |
193 | claw_clearbit_busy(int nr,struct net_device *dev) | |
194 | { | |
195 | clear_bit(nr,(void *)&(((struct claw_privbk *)dev->priv)->tbusy)); | |
196 | netif_wake_queue(dev); | |
197 | } | |
198 | ||
199 | static inline int | |
200 | claw_test_and_setbit_busy(int nr,struct net_device *dev) | |
201 | { | |
202 | netif_stop_queue(dev); | |
203 | return test_and_set_bit(nr, | |
204 | (void *)&(((struct claw_privbk *) dev->priv)->tbusy)); | |
205 | } | |
206 | ||
207 | ||
208 | /* Functions for the DEV methods */ | |
209 | ||
210 | static int claw_probe(struct ccwgroup_device *cgdev); | |
211 | static void claw_remove_device(struct ccwgroup_device *cgdev); | |
212 | static void claw_purge_skb_queue(struct sk_buff_head *q); | |
213 | static int claw_new_device(struct ccwgroup_device *cgdev); | |
214 | static int claw_shutdown_device(struct ccwgroup_device *cgdev); | |
215 | static int claw_tx(struct sk_buff *skb, struct net_device *dev); | |
216 | static int claw_change_mtu( struct net_device *dev, int new_mtu); | |
217 | static int claw_open(struct net_device *dev); | |
218 | static void claw_irq_handler(struct ccw_device *cdev, | |
219 | unsigned long intparm, struct irb *irb); | |
220 | static void claw_irq_tasklet ( unsigned long data ); | |
221 | static int claw_release(struct net_device *dev); | |
222 | static void claw_write_retry ( struct chbk * p_ch ); | |
223 | static void claw_write_next ( struct chbk * p_ch ); | |
224 | static void claw_timer ( struct chbk * p_ch ); | |
225 | ||
226 | /* Functions */ | |
227 | static int add_claw_reads(struct net_device *dev, | |
228 | struct ccwbk* p_first, struct ccwbk* p_last); | |
229 | static void inline ccw_check_return_code (struct ccw_device *cdev, | |
230 | int return_code); | |
231 | static void inline ccw_check_unit_check (struct chbk * p_ch, | |
232 | unsigned char sense ); | |
233 | static int find_link(struct net_device *dev, char *host_name, char *ws_name ); | |
234 | static int claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid); | |
235 | static int init_ccw_bk(struct net_device *dev); | |
236 | static void probe_error( struct ccwgroup_device *cgdev); | |
237 | static struct net_device_stats *claw_stats(struct net_device *dev); | |
238 | static int inline pages_to_order_of_mag(int num_of_pages); | |
239 | static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr); | |
240 | #ifdef DEBUG | |
241 | static void dumpit (char *buf, int len); | |
242 | #endif | |
243 | /* sysfs Functions */ | |
3fd3c0a5 YI |
244 | static ssize_t claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf); |
245 | static ssize_t claw_hname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 246 | const char *buf, size_t count); |
3fd3c0a5 YI |
247 | static ssize_t claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf); |
248 | static ssize_t claw_adname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 249 | const char *buf, size_t count); |
3fd3c0a5 YI |
250 | static ssize_t claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf); |
251 | static ssize_t claw_apname_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 252 | const char *buf, size_t count); |
3fd3c0a5 YI |
253 | static ssize_t claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf); |
254 | static ssize_t claw_wbuff_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 | 255 | const char *buf, size_t count); |
3fd3c0a5 YI |
256 | static ssize_t claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf); |
257 | static ssize_t claw_rbuff_write(struct device *dev, struct device_attribute *attr, | |
1da177e4 LT |
258 | const char *buf, size_t count); |
259 | static int claw_add_files(struct device *dev); | |
260 | static void claw_remove_files(struct device *dev); | |
261 | ||
262 | /* Functions for System Validate */ | |
263 | static int claw_process_control( struct net_device *dev, struct ccwbk * p_ccw); | |
264 | static int claw_send_control(struct net_device *dev, __u8 type, __u8 link, | |
265 | __u8 correlator, __u8 rc , char *local_name, char *remote_name); | |
266 | static int claw_snd_conn_req(struct net_device *dev, __u8 link); | |
267 | static int claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl); | |
268 | static int claw_snd_sys_validate_rsp(struct net_device *dev, | |
269 | struct clawctl * p_ctl, __u32 return_code); | |
270 | static int claw_strt_conn_req(struct net_device *dev ); | |
271 | static void claw_strt_read ( struct net_device *dev, int lock ); | |
272 | static void claw_strt_out_IO( struct net_device *dev ); | |
273 | static void claw_free_wrt_buf( struct net_device *dev ); | |
274 | ||
275 | /* Functions for unpack reads */ | |
276 | static void unpack_read (struct net_device *dev ); | |
277 | ||
278 | /* ccwgroup table */ | |
279 | ||
280 | static struct ccwgroup_driver claw_group_driver = { | |
281 | .owner = THIS_MODULE, | |
282 | .name = "claw", | |
283 | .max_slaves = 2, | |
284 | .driver_id = 0xC3D3C1E6, | |
285 | .probe = claw_probe, | |
286 | .remove = claw_remove_device, | |
287 | .set_online = claw_new_device, | |
288 | .set_offline = claw_shutdown_device, | |
289 | }; | |
290 | ||
291 | /* | |
292 | * | |
293 | * Key functions | |
294 | */ | |
295 | ||
296 | /*----------------------------------------------------------------* | |
297 | * claw_probe * | |
298 | * this function is called for each CLAW device. * | |
299 | *----------------------------------------------------------------*/ | |
300 | static int | |
301 | claw_probe(struct ccwgroup_device *cgdev) | |
302 | { | |
303 | int rc; | |
304 | struct claw_privbk *privptr=NULL; | |
305 | ||
306 | #ifdef FUNCTRACE | |
307 | printk(KERN_INFO "%s Enter\n",__FUNCTION__); | |
308 | #endif | |
309 | CLAW_DBF_TEXT(2,setup,"probe"); | |
310 | if (!get_device(&cgdev->dev)) | |
311 | return -ENODEV; | |
312 | #ifdef DEBUGMSG | |
313 | printk(KERN_INFO "claw: variable cgdev =\n"); | |
314 | dumpit((char *)cgdev, sizeof(struct ccwgroup_device)); | |
315 | #endif | |
316 | privptr = kmalloc(sizeof(struct claw_privbk), GFP_KERNEL); | |
317 | if (privptr == NULL) { | |
318 | probe_error(cgdev); | |
319 | put_device(&cgdev->dev); | |
320 | printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", | |
321 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
322 | CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); | |
323 | return -ENOMEM; | |
324 | } | |
325 | memset(privptr,0x00,sizeof(struct claw_privbk)); | |
326 | privptr->p_mtc_envelope= kmalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL); | |
327 | privptr->p_env = kmalloc(sizeof(struct claw_env), GFP_KERNEL); | |
328 | if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) { | |
329 | probe_error(cgdev); | |
330 | put_device(&cgdev->dev); | |
331 | printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", | |
332 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
333 | CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); | |
334 | return -ENOMEM; | |
335 | } | |
336 | memset(privptr->p_mtc_envelope, 0x00, MAX_ENVELOPE_SIZE); | |
337 | memset(privptr->p_env, 0x00, sizeof(struct claw_env)); | |
338 | memcpy(privptr->p_env->adapter_name,WS_NAME_NOT_DEF,8); | |
339 | memcpy(privptr->p_env->host_name,WS_NAME_NOT_DEF,8); | |
340 | memcpy(privptr->p_env->api_type,WS_NAME_NOT_DEF,8); | |
341 | privptr->p_env->packing = 0; | |
342 | privptr->p_env->write_buffers = 5; | |
343 | privptr->p_env->read_buffers = 5; | |
344 | privptr->p_env->read_size = CLAW_FRAME_SIZE; | |
345 | privptr->p_env->write_size = CLAW_FRAME_SIZE; | |
346 | rc = claw_add_files(&cgdev->dev); | |
347 | if (rc) { | |
348 | probe_error(cgdev); | |
349 | put_device(&cgdev->dev); | |
350 | printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n", | |
351 | cgdev->cdev[0]->dev.bus_id,__FUNCTION__,__LINE__); | |
352 | CLAW_DBF_TEXT_(2,setup,"probex%d",rc); | |
353 | return rc; | |
354 | } | |
355 | printk(KERN_INFO "claw: sysfs files added for %s\n",cgdev->cdev[0]->dev.bus_id); | |
356 | privptr->p_env->p_priv = privptr; | |
357 | cgdev->cdev[0]->handler = claw_irq_handler; | |
358 | cgdev->cdev[1]->handler = claw_irq_handler; | |
359 | cgdev->dev.driver_data = privptr; | |
360 | #ifdef FUNCTRACE | |
361 | printk(KERN_INFO "claw:%s exit on line %d, " | |
362 | "rc = 0\n",__FUNCTION__,__LINE__); | |
363 | #endif | |
364 | CLAW_DBF_TEXT(2,setup,"prbext 0"); | |
365 | ||
366 | return 0; | |
367 | } /* end of claw_probe */ | |
368 | ||
369 | /*-------------------------------------------------------------------* | |
370 | * claw_tx * | |
371 | *-------------------------------------------------------------------*/ | |
372 | ||
373 | static int | |
374 | claw_tx(struct sk_buff *skb, struct net_device *dev) | |
375 | { | |
376 | int rc; | |
377 | struct claw_privbk *privptr=dev->priv; | |
378 | unsigned long saveflags; | |
379 | struct chbk *p_ch; | |
380 | ||
381 | #ifdef FUNCTRACE | |
382 | printk(KERN_INFO "%s:%s enter\n",dev->name,__FUNCTION__); | |
383 | #endif | |
384 | CLAW_DBF_TEXT(4,trace,"claw_tx"); | |
385 | p_ch=&privptr->channel[WRITE]; | |
386 | if (skb == NULL) { | |
387 | printk(KERN_WARNING "%s: null pointer passed as sk_buffer\n", | |
388 | dev->name); | |
389 | privptr->stats.tx_dropped++; | |
390 | #ifdef FUNCTRACE | |
391 | printk(KERN_INFO "%s: %s() exit on line %d, rc = EIO\n", | |
392 | dev->name,__FUNCTION__, __LINE__); | |
393 | #endif | |
394 | CLAW_DBF_TEXT_(2,trace,"clawtx%d",-EIO); | |
395 | return -EIO; | |
396 | } | |
397 | ||
398 | #ifdef IOTRACE | |
399 | printk(KERN_INFO "%s: variable sk_buff=\n",dev->name); | |
400 | dumpit((char *) skb, sizeof(struct sk_buff)); | |
401 | printk(KERN_INFO "%s: variable dev=\n",dev->name); | |
402 | dumpit((char *) dev, sizeof(struct net_device)); | |
403 | #endif | |
404 | spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags); | |
405 | rc=claw_hw_tx( skb, dev, 1 ); | |
406 | spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); | |
407 | #ifdef FUNCTRACE | |
408 | printk(KERN_INFO "%s:%s exit on line %d, rc = %d\n", | |
409 | dev->name, __FUNCTION__, __LINE__, rc); | |
410 | #endif | |
411 | CLAW_DBF_TEXT_(4,trace,"clawtx%d",rc); | |
412 | return rc; | |
413 | } /* end of claw_tx */ | |
414 | ||
415 | /*------------------------------------------------------------------* | |
416 | * pack the collect queue into an skb and return it * | |
417 | * If not packing just return the top skb from the queue * | |
418 | *------------------------------------------------------------------*/ | |
419 | ||
420 | static struct sk_buff * | |
421 | claw_pack_skb(struct claw_privbk *privptr) | |
422 | { | |
423 | struct sk_buff *new_skb,*held_skb; | |
424 | struct chbk *p_ch = &privptr->channel[WRITE]; | |
425 | struct claw_env *p_env = privptr->p_env; | |
426 | int pkt_cnt,pk_ind,so_far; | |
427 | ||
428 | new_skb = NULL; /* assume no dice */ | |
429 | pkt_cnt = 0; | |
430 | CLAW_DBF_TEXT(4,trace,"PackSKBe"); | |
b03efcfb | 431 | if (!skb_queue_empty(&p_ch->collect_queue)) { |
1da177e4 LT |
432 | /* some data */ |
433 | held_skb = skb_dequeue(&p_ch->collect_queue); | |
434 | if (p_env->packing != DO_PACKED) | |
435 | return held_skb; | |
436 | if (held_skb) | |
437 | atomic_dec(&held_skb->users); | |
438 | else | |
439 | return NULL; | |
440 | /* get a new SKB we will pack at least one */ | |
441 | new_skb = dev_alloc_skb(p_env->write_size); | |
442 | if (new_skb == NULL) { | |
443 | atomic_inc(&held_skb->users); | |
444 | skb_queue_head(&p_ch->collect_queue,held_skb); | |
445 | return NULL; | |
446 | } | |
447 | /* we have packed packet and a place to put it */ | |
448 | pk_ind = 1; | |
449 | so_far = 0; | |
450 | new_skb->cb[1] = 'P'; /* every skb on queue has pack header */ | |
451 | while ((pk_ind) && (held_skb != NULL)) { | |
452 | if (held_skb->len+so_far <= p_env->write_size-8) { | |
453 | memcpy(skb_put(new_skb,held_skb->len), | |
454 | held_skb->data,held_skb->len); | |
455 | privptr->stats.tx_packets++; | |
456 | so_far += held_skb->len; | |
457 | pkt_cnt++; | |
458 | dev_kfree_skb_irq(held_skb); | |
459 | held_skb = skb_dequeue(&p_ch->collect_queue); | |
460 | if (held_skb) | |
461 | atomic_dec(&held_skb->users); | |
462 | } else { | |
463 | pk_ind = 0; | |
464 | atomic_inc(&held_skb->users); | |
465 | skb_queue_head(&p_ch->collect_queue,held_skb); | |
466 | } | |
467 | } | |
468 | #ifdef IOTRACE | |
469 | printk(KERN_INFO "%s: %s() Packed %d len %d\n", | |
470 | p_env->ndev->name, | |
471 | __FUNCTION__,pkt_cnt,new_skb->len); | |
472 | #endif | |
473 | } | |
474 | CLAW_DBF_TEXT(4,trace,"PackSKBx"); | |
475 | return new_skb; | |
476 | } | |
477 | ||
478 | /*-------------------------------------------------------------------* | |
479 | * claw_change_mtu * | |
480 | * * | |
481 | *-------------------------------------------------------------------*/ | |
482 | ||
483 | static int | |
484 | claw_change_mtu(struct net_device *dev, int new_mtu) | |
485 | { | |
486 | struct claw_privbk *privptr=dev->priv; | |
487 | int buff_size; | |
488 | #ifdef FUNCTRACE | |
489 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
490 | #endif | |
491 | #ifdef DEBUGMSG | |
492 | printk(KERN_INFO "variable dev =\n"); | |
493 | dumpit((char *) dev, sizeof(struct net_device)); | |
494 | printk(KERN_INFO "variable new_mtu = %d\n", new_mtu); | |
495 | #endif | |
496 | CLAW_DBF_TEXT(4,trace,"setmtu"); | |
497 | buff_size = privptr->p_env->write_size; | |
498 | if ((new_mtu < 60) || (new_mtu > buff_size)) { | |
499 | #ifdef FUNCTRACE | |
500 | printk(KERN_INFO "%s:%s Exit on line %d, rc=EINVAL\n", | |
501 | dev->name, | |
502 | __FUNCTION__, __LINE__); | |
503 | #endif | |
504 | return -EINVAL; | |
505 | } | |
506 | dev->mtu = new_mtu; | |
507 | #ifdef FUNCTRACE | |
508 | printk(KERN_INFO "%s:%s Exit on line %d\n",dev->name, | |
509 | __FUNCTION__, __LINE__); | |
510 | #endif | |
511 | return 0; | |
512 | } /* end of claw_change_mtu */ | |
513 | ||
514 | ||
515 | /*-------------------------------------------------------------------* | |
516 | * claw_open * | |
517 | * * | |
518 | *-------------------------------------------------------------------*/ | |
519 | static int | |
520 | claw_open(struct net_device *dev) | |
521 | { | |
522 | ||
523 | int rc; | |
524 | int i; | |
525 | unsigned long saveflags=0; | |
526 | unsigned long parm; | |
527 | struct claw_privbk *privptr; | |
528 | DECLARE_WAITQUEUE(wait, current); | |
529 | struct timer_list timer; | |
530 | struct ccwbk *p_buf; | |
531 | ||
532 | #ifdef FUNCTRACE | |
533 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
534 | #endif | |
535 | CLAW_DBF_TEXT(4,trace,"open"); | |
536 | if (!dev | (dev->name[0] == 0x00)) { | |
537 | CLAW_DBF_TEXT(2,trace,"BadDev"); | |
538 | printk(KERN_WARNING "claw: Bad device at open failing \n"); | |
539 | return -ENODEV; | |
540 | } | |
541 | privptr = (struct claw_privbk *)dev->priv; | |
542 | /* allocate and initialize CCW blocks */ | |
543 | if (privptr->buffs_alloc == 0) { | |
544 | rc=init_ccw_bk(dev); | |
545 | if (rc) { | |
546 | printk(KERN_INFO "%s:%s Exit on line %d, rc=ENOMEM\n", | |
547 | dev->name, | |
548 | __FUNCTION__, __LINE__); | |
549 | CLAW_DBF_TEXT(2,trace,"openmem"); | |
550 | return -ENOMEM; | |
551 | } | |
552 | } | |
553 | privptr->system_validate_comp=0; | |
554 | privptr->release_pend=0; | |
555 | if(strncmp(privptr->p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
556 | privptr->p_env->read_size=DEF_PACK_BUFSIZE; | |
557 | privptr->p_env->write_size=DEF_PACK_BUFSIZE; | |
558 | privptr->p_env->packing=PACKING_ASK; | |
559 | } else { | |
560 | privptr->p_env->packing=0; | |
561 | privptr->p_env->read_size=CLAW_FRAME_SIZE; | |
562 | privptr->p_env->write_size=CLAW_FRAME_SIZE; | |
563 | } | |
564 | claw_set_busy(dev); | |
565 | tasklet_init(&privptr->channel[READ].tasklet, claw_irq_tasklet, | |
566 | (unsigned long) &privptr->channel[READ]); | |
567 | for ( i = 0; i < 2; i++) { | |
568 | CLAW_DBF_TEXT_(2,trace,"opn_ch%d",i); | |
569 | init_waitqueue_head(&privptr->channel[i].wait); | |
570 | /* skb_queue_head_init(&p_ch->io_queue); */ | |
571 | if (i == WRITE) | |
572 | skb_queue_head_init( | |
573 | &privptr->channel[WRITE].collect_queue); | |
574 | privptr->channel[i].flag_a = 0; | |
575 | privptr->channel[i].IO_active = 0; | |
576 | privptr->channel[i].flag &= ~CLAW_TIMER; | |
577 | init_timer(&timer); | |
578 | timer.function = (void *)claw_timer; | |
579 | timer.data = (unsigned long)(&privptr->channel[i]); | |
580 | timer.expires = jiffies + 15*HZ; | |
581 | add_timer(&timer); | |
582 | spin_lock_irqsave(get_ccwdev_lock( | |
583 | privptr->channel[i].cdev), saveflags); | |
584 | parm = (unsigned long) &privptr->channel[i]; | |
585 | privptr->channel[i].claw_state = CLAW_START_HALT_IO; | |
586 | rc = 0; | |
587 | add_wait_queue(&privptr->channel[i].wait, &wait); | |
588 | rc = ccw_device_halt( | |
589 | (struct ccw_device *)privptr->channel[i].cdev,parm); | |
590 | set_current_state(TASK_INTERRUPTIBLE); | |
591 | spin_unlock_irqrestore( | |
592 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
593 | schedule(); | |
594 | set_current_state(TASK_RUNNING); | |
595 | remove_wait_queue(&privptr->channel[i].wait, &wait); | |
596 | if(rc != 0) | |
597 | ccw_check_return_code(privptr->channel[i].cdev, rc); | |
598 | if((privptr->channel[i].flag & CLAW_TIMER) == 0x00) | |
599 | del_timer(&timer); | |
600 | } | |
601 | if ((((privptr->channel[READ].last_dstat | | |
602 | privptr->channel[WRITE].last_dstat) & | |
603 | ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) || | |
604 | (((privptr->channel[READ].flag | | |
605 | privptr->channel[WRITE].flag) & CLAW_TIMER) != 0x00)) { | |
606 | #ifdef DEBUGMSG | |
607 | printk(KERN_INFO "%s: channel problems during open - read:" | |
608 | " %02x - write: %02x\n", | |
609 | dev->name, | |
610 | privptr->channel[READ].last_dstat, | |
611 | privptr->channel[WRITE].last_dstat); | |
612 | #endif | |
613 | printk(KERN_INFO "%s: remote side is not ready\n", dev->name); | |
614 | CLAW_DBF_TEXT(2,trace,"notrdy"); | |
615 | ||
616 | for ( i = 0; i < 2; i++) { | |
617 | spin_lock_irqsave( | |
618 | get_ccwdev_lock(privptr->channel[i].cdev), | |
619 | saveflags); | |
620 | parm = (unsigned long) &privptr->channel[i]; | |
621 | privptr->channel[i].claw_state = CLAW_STOP; | |
622 | rc = ccw_device_halt( | |
623 | (struct ccw_device *)&privptr->channel[i].cdev, | |
624 | parm); | |
625 | spin_unlock_irqrestore( | |
626 | get_ccwdev_lock(privptr->channel[i].cdev), | |
627 | saveflags); | |
628 | if (rc != 0) { | |
629 | ccw_check_return_code( | |
630 | privptr->channel[i].cdev, rc); | |
631 | } | |
632 | } | |
633 | free_pages((unsigned long)privptr->p_buff_ccw, | |
634 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
635 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
636 | free_pages((unsigned long)privptr->p_buff_read, | |
637 | (int)pages_to_order_of_mag( | |
638 | privptr->p_buff_read_num)); | |
639 | } | |
640 | else { | |
641 | p_buf=privptr->p_read_active_first; | |
642 | while (p_buf!=NULL) { | |
643 | free_pages((unsigned long)p_buf->p_buffer, | |
644 | (int)pages_to_order_of_mag( | |
645 | privptr->p_buff_pages_perread )); | |
646 | p_buf=p_buf->next; | |
647 | } | |
648 | } | |
649 | if (privptr->p_env->write_size < PAGE_SIZE ) { | |
650 | free_pages((unsigned long)privptr->p_buff_write, | |
651 | (int)pages_to_order_of_mag( | |
652 | privptr->p_buff_write_num)); | |
653 | } | |
654 | else { | |
655 | p_buf=privptr->p_write_active_first; | |
656 | while (p_buf!=NULL) { | |
657 | free_pages((unsigned long)p_buf->p_buffer, | |
658 | (int)pages_to_order_of_mag( | |
659 | privptr->p_buff_pages_perwrite )); | |
660 | p_buf=p_buf->next; | |
661 | } | |
662 | } | |
663 | privptr->buffs_alloc = 0; | |
664 | privptr->channel[READ].flag= 0x00; | |
665 | privptr->channel[WRITE].flag = 0x00; | |
666 | privptr->p_buff_ccw=NULL; | |
667 | privptr->p_buff_read=NULL; | |
668 | privptr->p_buff_write=NULL; | |
669 | claw_clear_busy(dev); | |
670 | #ifdef FUNCTRACE | |
671 | printk(KERN_INFO "%s:%s Exit on line %d, rc=EIO\n", | |
672 | dev->name,__FUNCTION__,__LINE__); | |
673 | #endif | |
674 | CLAW_DBF_TEXT(2,trace,"open EIO"); | |
675 | return -EIO; | |
676 | } | |
677 | ||
678 | /* Send SystemValidate command */ | |
679 | ||
680 | claw_clear_busy(dev); | |
681 | ||
682 | #ifdef FUNCTRACE | |
683 | printk(KERN_INFO "%s:%s Exit on line %d, rc=0\n", | |
684 | dev->name,__FUNCTION__,__LINE__); | |
685 | #endif | |
686 | CLAW_DBF_TEXT(4,trace,"openok"); | |
687 | return 0; | |
688 | } /* end of claw_open */ | |
689 | ||
690 | /*-------------------------------------------------------------------* | |
691 | * * | |
692 | * claw_irq_handler * | |
693 | * * | |
694 | *--------------------------------------------------------------------*/ | |
695 | static void | |
696 | claw_irq_handler(struct ccw_device *cdev, | |
697 | unsigned long intparm, struct irb *irb) | |
698 | { | |
699 | struct chbk *p_ch = NULL; | |
700 | struct claw_privbk *privptr = NULL; | |
701 | struct net_device *dev = NULL; | |
702 | struct claw_env *p_env; | |
703 | struct chbk *p_ch_r=NULL; | |
704 | ||
705 | ||
706 | #ifdef FUNCTRACE | |
707 | printk(KERN_INFO "%s enter \n",__FUNCTION__); | |
708 | #endif | |
709 | CLAW_DBF_TEXT(4,trace,"clawirq"); | |
710 | /* Bypass all 'unsolicited interrupts' */ | |
711 | if (!cdev->dev.driver_data) { | |
712 | printk(KERN_WARNING "claw: unsolicited interrupt for device:" | |
713 | "%s received c-%02x d-%02x\n", | |
714 | cdev->dev.bus_id,irb->scsw.cstat, irb->scsw.dstat); | |
715 | #ifdef FUNCTRACE | |
716 | printk(KERN_INFO "claw: %s() " | |
717 | "exit on line %d\n",__FUNCTION__,__LINE__); | |
718 | #endif | |
719 | CLAW_DBF_TEXT(2,trace,"badirq"); | |
720 | return; | |
721 | } | |
722 | privptr = (struct claw_privbk *)cdev->dev.driver_data; | |
723 | ||
724 | /* Try to extract channel from driver data. */ | |
725 | if (privptr->channel[READ].cdev == cdev) | |
726 | p_ch = &privptr->channel[READ]; | |
727 | else if (privptr->channel[WRITE].cdev == cdev) | |
728 | p_ch = &privptr->channel[WRITE]; | |
729 | else { | |
730 | printk(KERN_WARNING "claw: Can't determine channel for " | |
731 | "interrupt, device %s\n", cdev->dev.bus_id); | |
732 | CLAW_DBF_TEXT(2,trace,"badchan"); | |
733 | return; | |
734 | } | |
735 | CLAW_DBF_TEXT_(4,trace,"IRQCH=%d",p_ch->flag); | |
736 | ||
737 | dev = (struct net_device *) (p_ch->ndev); | |
738 | p_env=privptr->p_env; | |
739 | ||
740 | #ifdef IOTRACE | |
741 | printk(KERN_INFO "%s: interrupt for device: %04x " | |
742 | "received c-%02x d-%02x state-%02x\n", | |
743 | dev->name, p_ch->devno, irb->scsw.cstat, | |
744 | irb->scsw.dstat, p_ch->claw_state); | |
745 | #endif | |
746 | ||
747 | /* Copy interruption response block. */ | |
748 | memcpy(p_ch->irb, irb, sizeof(struct irb)); | |
749 | ||
750 | /* Check for good subchannel return code, otherwise error message */ | |
751 | if (irb->scsw.cstat && !(irb->scsw.cstat & SCHN_STAT_PCI)) { | |
752 | printk(KERN_INFO "%s: subchannel check for device: %04x -" | |
753 | " Sch Stat %02x Dev Stat %02x CPA - %04x\n", | |
754 | dev->name, p_ch->devno, | |
755 | irb->scsw.cstat, irb->scsw.dstat,irb->scsw.cpa); | |
756 | #ifdef IOTRACE | |
757 | dumpit((char *)irb,sizeof(struct irb)); | |
758 | dumpit((char *)(unsigned long)irb->scsw.cpa, | |
759 | sizeof(struct ccw1)); | |
760 | #endif | |
761 | #ifdef FUNCTRACE | |
762 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
763 | dev->name,__FUNCTION__,__LINE__); | |
764 | #endif | |
765 | CLAW_DBF_TEXT(2,trace,"chanchk"); | |
766 | /* return; */ | |
767 | } | |
768 | ||
769 | /* Check the reason-code of a unit check */ | |
770 | if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
771 | ccw_check_unit_check(p_ch, irb->ecw[0]); | |
772 | } | |
773 | ||
774 | /* State machine to bring the connection up, down and to restart */ | |
775 | p_ch->last_dstat = irb->scsw.dstat; | |
776 | ||
777 | switch (p_ch->claw_state) { | |
778 | case CLAW_STOP:/* HALT_IO by claw_release (halt sequence) */ | |
779 | #ifdef DEBUGMSG | |
780 | printk(KERN_INFO "%s: CLAW_STOP enter\n", dev->name); | |
781 | #endif | |
782 | if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
783 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
784 | (p_ch->irb->scsw.stctl == | |
785 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
786 | #ifdef FUNCTRACE | |
787 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
788 | dev->name,__FUNCTION__,__LINE__); | |
789 | #endif | |
790 | return; | |
791 | } | |
792 | wake_up(&p_ch->wait); /* wake up claw_release */ | |
793 | ||
794 | #ifdef DEBUGMSG | |
795 | printk(KERN_INFO "%s: CLAW_STOP exit\n", dev->name); | |
796 | #endif | |
797 | #ifdef FUNCTRACE | |
798 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
799 | dev->name,__FUNCTION__,__LINE__); | |
800 | #endif | |
801 | CLAW_DBF_TEXT(4,trace,"stop"); | |
802 | return; | |
803 | ||
804 | case CLAW_START_HALT_IO: /* HALT_IO issued by claw_open */ | |
805 | #ifdef DEBUGMSG | |
806 | printk(KERN_INFO "%s: process CLAW_STAT_HALT_IO\n", | |
807 | dev->name); | |
808 | #endif | |
809 | if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
810 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
811 | (p_ch->irb->scsw.stctl == | |
812 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
813 | #ifdef FUNCTRACE | |
814 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
815 | dev->name,__FUNCTION__,__LINE__); | |
816 | #endif | |
817 | CLAW_DBF_TEXT(4,trace,"haltio"); | |
818 | return; | |
819 | } | |
820 | if (p_ch->flag == CLAW_READ) { | |
821 | p_ch->claw_state = CLAW_START_READ; | |
822 | wake_up(&p_ch->wait); /* wake claw_open (READ)*/ | |
823 | } | |
824 | else | |
825 | if (p_ch->flag == CLAW_WRITE) { | |
826 | p_ch->claw_state = CLAW_START_WRITE; | |
827 | /* send SYSTEM_VALIDATE */ | |
828 | claw_strt_read(dev, LOCK_NO); | |
829 | claw_send_control(dev, | |
830 | SYSTEM_VALIDATE_REQUEST, | |
831 | 0, 0, 0, | |
832 | p_env->host_name, | |
833 | p_env->adapter_name ); | |
834 | } else { | |
835 | printk(KERN_WARNING "claw: unsolicited " | |
836 | "interrupt for device:" | |
837 | "%s received c-%02x d-%02x\n", | |
838 | cdev->dev.bus_id, | |
839 | irb->scsw.cstat, | |
840 | irb->scsw.dstat); | |
841 | return; | |
842 | } | |
843 | #ifdef DEBUGMSG | |
844 | printk(KERN_INFO "%s: process CLAW_STAT_HALT_IO exit\n", | |
845 | dev->name); | |
846 | #endif | |
847 | #ifdef FUNCTRACE | |
848 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
849 | dev->name,__FUNCTION__,__LINE__); | |
850 | #endif | |
851 | CLAW_DBF_TEXT(4,trace,"haltio"); | |
852 | return; | |
853 | case CLAW_START_READ: | |
854 | CLAW_DBF_TEXT(4,trace,"ReadIRQ"); | |
855 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
856 | clear_bit(0, (void *)&p_ch->IO_active); | |
857 | if ((p_ch->irb->ecw[0] & 0x41) == 0x41 || | |
858 | (p_ch->irb->ecw[0] & 0x40) == 0x40 || | |
859 | (p_ch->irb->ecw[0]) == 0) | |
860 | { | |
861 | privptr->stats.rx_errors++; | |
862 | printk(KERN_INFO "%s: Restart is " | |
863 | "required after remote " | |
864 | "side recovers \n", | |
865 | dev->name); | |
866 | } | |
867 | #ifdef FUNCTRACE | |
868 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
869 | dev->name,__FUNCTION__,__LINE__); | |
870 | #endif | |
871 | CLAW_DBF_TEXT(4,trace,"notrdy"); | |
872 | return; | |
873 | } | |
874 | if ((p_ch->irb->scsw.cstat & SCHN_STAT_PCI) && | |
875 | (p_ch->irb->scsw.dstat==0)) { | |
876 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
877 | (void *)&p_ch->flag_a) == 0) { | |
878 | tasklet_schedule(&p_ch->tasklet); | |
879 | } | |
880 | else { | |
881 | CLAW_DBF_TEXT(4,trace,"PCINoBH"); | |
882 | } | |
883 | #ifdef FUNCTRACE | |
884 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
885 | dev->name,__FUNCTION__,__LINE__); | |
886 | #endif | |
887 | CLAW_DBF_TEXT(4,trace,"PCI_read"); | |
888 | return; | |
889 | } | |
890 | if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
891 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
892 | (p_ch->irb->scsw.stctl == | |
893 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
894 | #ifdef FUNCTRACE | |
895 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
896 | dev->name,__FUNCTION__,__LINE__); | |
897 | #endif | |
898 | CLAW_DBF_TEXT(4,trace,"SPend_rd"); | |
899 | return; | |
900 | } | |
901 | clear_bit(0, (void *)&p_ch->IO_active); | |
902 | claw_clearbit_busy(TB_RETRY,dev); | |
903 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
904 | (void *)&p_ch->flag_a) == 0) { | |
905 | tasklet_schedule(&p_ch->tasklet); | |
906 | } | |
907 | else { | |
908 | CLAW_DBF_TEXT(4,trace,"RdBHAct"); | |
909 | } | |
910 | ||
911 | #ifdef DEBUGMSG | |
912 | printk(KERN_INFO "%s: process CLAW_START_READ exit\n", | |
913 | dev->name); | |
914 | #endif | |
915 | #ifdef FUNCTRACE | |
916 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
917 | dev->name,__FUNCTION__,__LINE__); | |
918 | #endif | |
919 | CLAW_DBF_TEXT(4,trace,"RdIRQXit"); | |
920 | return; | |
921 | case CLAW_START_WRITE: | |
922 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { | |
923 | printk(KERN_INFO "%s: Unit Check Occured in " | |
924 | "write channel\n",dev->name); | |
925 | clear_bit(0, (void *)&p_ch->IO_active); | |
926 | if (p_ch->irb->ecw[0] & 0x80 ) { | |
927 | printk(KERN_INFO "%s: Resetting Event " | |
928 | "occurred:\n",dev->name); | |
929 | init_timer(&p_ch->timer); | |
930 | p_ch->timer.function = | |
931 | (void *)claw_write_retry; | |
932 | p_ch->timer.data = (unsigned long)p_ch; | |
933 | p_ch->timer.expires = jiffies + 10*HZ; | |
934 | add_timer(&p_ch->timer); | |
935 | printk(KERN_INFO "%s: write connection " | |
936 | "restarting\n",dev->name); | |
937 | } | |
938 | #ifdef FUNCTRACE | |
939 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
940 | dev->name,__FUNCTION__,__LINE__); | |
941 | #endif | |
942 | CLAW_DBF_TEXT(4,trace,"rstrtwrt"); | |
943 | return; | |
944 | } | |
945 | if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) { | |
946 | clear_bit(0, (void *)&p_ch->IO_active); | |
947 | printk(KERN_INFO "%s: Unit Exception " | |
948 | "Occured in write channel\n", | |
949 | dev->name); | |
950 | } | |
951 | if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || | |
952 | (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || | |
953 | (p_ch->irb->scsw.stctl == | |
954 | (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { | |
955 | #ifdef FUNCTRACE | |
956 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
957 | dev->name,__FUNCTION__,__LINE__); | |
958 | #endif | |
959 | CLAW_DBF_TEXT(4,trace,"writeUE"); | |
960 | return; | |
961 | } | |
962 | clear_bit(0, (void *)&p_ch->IO_active); | |
963 | if (claw_test_and_setbit_busy(TB_TX,dev)==0) { | |
964 | claw_write_next(p_ch); | |
965 | claw_clearbit_busy(TB_TX,dev); | |
966 | claw_clear_busy(dev); | |
967 | } | |
968 | p_ch_r=(struct chbk *)&privptr->channel[READ]; | |
969 | if (test_and_set_bit(CLAW_BH_ACTIVE, | |
970 | (void *)&p_ch_r->flag_a) == 0) { | |
971 | tasklet_schedule(&p_ch_r->tasklet); | |
972 | } | |
973 | ||
974 | #ifdef DEBUGMSG | |
975 | printk(KERN_INFO "%s: process CLAW_START_WRITE exit\n", | |
976 | dev->name); | |
977 | #endif | |
978 | #ifdef FUNCTRACE | |
979 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
980 | dev->name,__FUNCTION__,__LINE__); | |
981 | #endif | |
982 | CLAW_DBF_TEXT(4,trace,"StWtExit"); | |
983 | return; | |
984 | default: | |
985 | printk(KERN_WARNING "%s: wrong selection code - irq " | |
986 | "state=%d\n",dev->name,p_ch->claw_state); | |
987 | #ifdef FUNCTRACE | |
988 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
989 | dev->name,__FUNCTION__,__LINE__); | |
990 | #endif | |
991 | CLAW_DBF_TEXT(2,trace,"badIRQ"); | |
992 | return; | |
993 | } | |
994 | ||
995 | } /* end of claw_irq_handler */ | |
996 | ||
997 | ||
998 | /*-------------------------------------------------------------------* | |
999 | * claw_irq_tasklet * | |
1000 | * * | |
1001 | *--------------------------------------------------------------------*/ | |
1002 | static void | |
1003 | claw_irq_tasklet ( unsigned long data ) | |
1004 | { | |
1005 | struct chbk * p_ch; | |
1006 | struct net_device *dev; | |
1007 | struct claw_privbk * privptr; | |
1008 | ||
1009 | p_ch = (struct chbk *) data; | |
1010 | dev = (struct net_device *)p_ch->ndev; | |
1011 | #ifdef FUNCTRACE | |
1012 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1013 | #endif | |
1014 | #ifdef DEBUGMSG | |
1015 | printk(KERN_INFO "%s: variable p_ch =\n",dev->name); | |
1016 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1017 | #endif | |
1018 | CLAW_DBF_TEXT(4,trace,"IRQtask"); | |
1019 | ||
1020 | privptr = (struct claw_privbk *) dev->priv; | |
1021 | ||
1022 | #ifdef DEBUGMSG | |
1023 | printk(KERN_INFO "%s: bh routine - state-%02x\n" , | |
1024 | dev->name, p_ch->claw_state); | |
1025 | #endif | |
1026 | ||
1027 | unpack_read(dev); | |
1028 | clear_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a); | |
1029 | CLAW_DBF_TEXT(4,trace,"TskletXt"); | |
1030 | #ifdef FUNCTRACE | |
1031 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1032 | dev->name,__FUNCTION__,__LINE__); | |
1033 | #endif | |
1034 | return; | |
1035 | } /* end of claw_irq_bh */ | |
1036 | ||
1037 | /*-------------------------------------------------------------------* | |
1038 | * claw_release * | |
1039 | * * | |
1040 | *--------------------------------------------------------------------*/ | |
1041 | static int | |
1042 | claw_release(struct net_device *dev) | |
1043 | { | |
1044 | int rc; | |
1045 | int i; | |
1046 | unsigned long saveflags; | |
1047 | unsigned long parm; | |
1048 | struct claw_privbk *privptr; | |
1049 | DECLARE_WAITQUEUE(wait, current); | |
1050 | struct ccwbk* p_this_ccw; | |
1051 | struct ccwbk* p_buf; | |
1052 | ||
1053 | if (!dev) | |
1054 | return 0; | |
1055 | privptr = (struct claw_privbk *) dev->priv; | |
1056 | if (!privptr) | |
1057 | return 0; | |
1058 | #ifdef FUNCTRACE | |
1059 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1060 | #endif | |
1061 | CLAW_DBF_TEXT(4,trace,"release"); | |
1062 | #ifdef DEBUGMSG | |
1063 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1064 | dumpit((char *) dev, sizeof(struct net_device)); | |
1065 | printk(KERN_INFO "Priv Buffalloc %d\n",privptr->buffs_alloc); | |
1066 | printk(KERN_INFO "Priv p_buff_ccw = %p\n",&privptr->p_buff_ccw); | |
1067 | #endif | |
1068 | privptr->release_pend=1; | |
1069 | claw_setbit_busy(TB_STOP,dev); | |
1070 | for ( i = 1; i >=0 ; i--) { | |
1071 | spin_lock_irqsave( | |
1072 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
1073 | /* del_timer(&privptr->channel[READ].timer); */ | |
1074 | privptr->channel[i].claw_state = CLAW_STOP; | |
1075 | privptr->channel[i].IO_active = 0; | |
1076 | parm = (unsigned long) &privptr->channel[i]; | |
1077 | if (i == WRITE) | |
1078 | claw_purge_skb_queue( | |
1079 | &privptr->channel[WRITE].collect_queue); | |
1080 | rc = ccw_device_halt (privptr->channel[i].cdev, parm); | |
1081 | if (privptr->system_validate_comp==0x00) /* never opened? */ | |
1082 | init_waitqueue_head(&privptr->channel[i].wait); | |
1083 | add_wait_queue(&privptr->channel[i].wait, &wait); | |
1084 | set_current_state(TASK_INTERRUPTIBLE); | |
1085 | spin_unlock_irqrestore( | |
1086 | get_ccwdev_lock(privptr->channel[i].cdev), saveflags); | |
1087 | schedule(); | |
1088 | set_current_state(TASK_RUNNING); | |
1089 | remove_wait_queue(&privptr->channel[i].wait, &wait); | |
1090 | if (rc != 0) { | |
1091 | ccw_check_return_code(privptr->channel[i].cdev, rc); | |
1092 | } | |
1093 | } | |
1094 | if (privptr->pk_skb != NULL) { | |
1095 | dev_kfree_skb(privptr->pk_skb); | |
1096 | privptr->pk_skb = NULL; | |
1097 | } | |
1098 | if(privptr->buffs_alloc != 1) { | |
1099 | #ifdef FUNCTRACE | |
1100 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1101 | dev->name,__FUNCTION__,__LINE__); | |
1102 | #endif | |
1103 | CLAW_DBF_TEXT(4,trace,"none2fre"); | |
1104 | return 0; | |
1105 | } | |
1106 | CLAW_DBF_TEXT(4,trace,"freebufs"); | |
1107 | if (privptr->p_buff_ccw != NULL) { | |
1108 | free_pages((unsigned long)privptr->p_buff_ccw, | |
1109 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
1110 | } | |
1111 | CLAW_DBF_TEXT(4,trace,"freeread"); | |
1112 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
1113 | if (privptr->p_buff_read != NULL) { | |
1114 | free_pages((unsigned long)privptr->p_buff_read, | |
1115 | (int)pages_to_order_of_mag(privptr->p_buff_read_num)); | |
1116 | } | |
1117 | } | |
1118 | else { | |
1119 | p_buf=privptr->p_read_active_first; | |
1120 | while (p_buf!=NULL) { | |
1121 | free_pages((unsigned long)p_buf->p_buffer, | |
1122 | (int)pages_to_order_of_mag( | |
1123 | privptr->p_buff_pages_perread )); | |
1124 | p_buf=p_buf->next; | |
1125 | } | |
1126 | } | |
1127 | CLAW_DBF_TEXT(4,trace,"freewrit"); | |
1128 | if (privptr->p_env->write_size < PAGE_SIZE ) { | |
1129 | free_pages((unsigned long)privptr->p_buff_write, | |
1130 | (int)pages_to_order_of_mag(privptr->p_buff_write_num)); | |
1131 | } | |
1132 | else { | |
1133 | p_buf=privptr->p_write_active_first; | |
1134 | while (p_buf!=NULL) { | |
1135 | free_pages((unsigned long)p_buf->p_buffer, | |
1136 | (int)pages_to_order_of_mag( | |
1137 | privptr->p_buff_pages_perwrite )); | |
1138 | p_buf=p_buf->next; | |
1139 | } | |
1140 | } | |
1141 | CLAW_DBF_TEXT(4,trace,"clearptr"); | |
1142 | privptr->buffs_alloc = 0; | |
1143 | privptr->p_buff_ccw=NULL; | |
1144 | privptr->p_buff_read=NULL; | |
1145 | privptr->p_buff_write=NULL; | |
1146 | privptr->system_validate_comp=0; | |
1147 | privptr->release_pend=0; | |
1148 | /* Remove any writes that were pending and reset all reads */ | |
1149 | p_this_ccw=privptr->p_read_active_first; | |
1150 | while (p_this_ccw!=NULL) { | |
1151 | p_this_ccw->header.length=0xffff; | |
1152 | p_this_ccw->header.opcode=0xff; | |
1153 | p_this_ccw->header.flag=0x00; | |
1154 | p_this_ccw=p_this_ccw->next; | |
1155 | } | |
1156 | ||
1157 | while (privptr->p_write_active_first!=NULL) { | |
1158 | p_this_ccw=privptr->p_write_active_first; | |
1159 | p_this_ccw->header.flag=CLAW_PENDING; | |
1160 | privptr->p_write_active_first=p_this_ccw->next; | |
1161 | p_this_ccw->next=privptr->p_write_free_chain; | |
1162 | privptr->p_write_free_chain=p_this_ccw; | |
1163 | ++privptr->write_free_count; | |
1164 | } | |
1165 | privptr->p_write_active_last=NULL; | |
1166 | privptr->mtc_logical_link = -1; | |
1167 | privptr->mtc_skipping = 1; | |
1168 | privptr->mtc_offset=0; | |
1169 | ||
1170 | if (((privptr->channel[READ].last_dstat | | |
1171 | privptr->channel[WRITE].last_dstat) & | |
1172 | ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) { | |
1173 | printk(KERN_WARNING "%s: channel problems during close - " | |
1174 | "read: %02x - write: %02x\n", | |
1175 | dev->name, | |
1176 | privptr->channel[READ].last_dstat, | |
1177 | privptr->channel[WRITE].last_dstat); | |
1178 | CLAW_DBF_TEXT(2,trace,"badclose"); | |
1179 | } | |
1180 | #ifdef FUNCTRACE | |
1181 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1182 | dev->name,__FUNCTION__,__LINE__); | |
1183 | #endif | |
1184 | CLAW_DBF_TEXT(4,trace,"rlsexit"); | |
1185 | return 0; | |
1186 | } /* end of claw_release */ | |
1187 | ||
1188 | ||
1189 | ||
1190 | /*-------------------------------------------------------------------* | |
1191 | * claw_write_retry * | |
1192 | * * | |
1193 | *--------------------------------------------------------------------*/ | |
1194 | ||
1195 | static void | |
1196 | claw_write_retry ( struct chbk *p_ch ) | |
1197 | { | |
1198 | ||
1199 | struct net_device *dev=p_ch->ndev; | |
1200 | ||
1201 | ||
1202 | #ifdef FUNCTRACE | |
1203 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
1204 | printk(KERN_INFO "claw: variable p_ch =\n"); | |
1205 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1206 | #endif | |
1207 | CLAW_DBF_TEXT(4,trace,"w_retry"); | |
1208 | if (p_ch->claw_state == CLAW_STOP) { | |
1209 | #ifdef FUNCTRACE | |
1210 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1211 | dev->name,__FUNCTION__,__LINE__); | |
1212 | #endif | |
1213 | return; | |
1214 | } | |
1215 | #ifdef DEBUGMSG | |
1216 | printk( KERN_INFO "%s:%s state-%02x\n" , | |
1217 | dev->name, | |
1218 | __FUNCTION__, | |
1219 | p_ch->claw_state); | |
1220 | #endif | |
1221 | claw_strt_out_IO( dev ); | |
1222 | #ifdef FUNCTRACE | |
1223 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1224 | dev->name,__FUNCTION__,__LINE__); | |
1225 | #endif | |
1226 | CLAW_DBF_TEXT(4,trace,"rtry_xit"); | |
1227 | return; | |
1228 | } /* end of claw_write_retry */ | |
1229 | ||
1230 | ||
1231 | /*-------------------------------------------------------------------* | |
1232 | * claw_write_next * | |
1233 | * * | |
1234 | *--------------------------------------------------------------------*/ | |
1235 | ||
1236 | static void | |
1237 | claw_write_next ( struct chbk * p_ch ) | |
1238 | { | |
1239 | ||
1240 | struct net_device *dev; | |
1241 | struct claw_privbk *privptr=NULL; | |
1242 | struct sk_buff *pk_skb; | |
1243 | int rc; | |
1244 | ||
1245 | #ifdef FUNCTRACE | |
1246 | printk(KERN_INFO "%s:%s Enter \n",p_ch->ndev->name,__FUNCTION__); | |
1247 | printk(KERN_INFO "%s: variable p_ch =\n",p_ch->ndev->name); | |
1248 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1249 | #endif | |
1250 | CLAW_DBF_TEXT(4,trace,"claw_wrt"); | |
1251 | if (p_ch->claw_state == CLAW_STOP) | |
1252 | return; | |
1253 | dev = (struct net_device *) p_ch->ndev; | |
1254 | privptr = (struct claw_privbk *) dev->priv; | |
1255 | claw_free_wrt_buf( dev ); | |
1256 | if ((privptr->write_free_count > 0) && | |
b03efcfb | 1257 | !skb_queue_empty(&p_ch->collect_queue)) { |
1da177e4 LT |
1258 | pk_skb = claw_pack_skb(privptr); |
1259 | while (pk_skb != NULL) { | |
1260 | rc = claw_hw_tx( pk_skb, dev,1); | |
1261 | if (privptr->write_free_count > 0) { | |
1262 | pk_skb = claw_pack_skb(privptr); | |
1263 | } else | |
1264 | pk_skb = NULL; | |
1265 | } | |
1266 | } | |
1267 | if (privptr->p_write_active_first!=NULL) { | |
1268 | claw_strt_out_IO(dev); | |
1269 | } | |
1270 | ||
1271 | #ifdef FUNCTRACE | |
1272 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1273 | dev->name,__FUNCTION__,__LINE__); | |
1274 | #endif | |
1275 | return; | |
1276 | } /* end of claw_write_next */ | |
1277 | ||
1278 | /*-------------------------------------------------------------------* | |
1279 | * * | |
1280 | * claw_timer * | |
1281 | *--------------------------------------------------------------------*/ | |
1282 | ||
1283 | static void | |
1284 | claw_timer ( struct chbk * p_ch ) | |
1285 | { | |
1286 | #ifdef FUNCTRACE | |
1287 | printk(KERN_INFO "%s:%s Entry\n",p_ch->ndev->name,__FUNCTION__); | |
1288 | printk(KERN_INFO "%s: variable p_ch =\n",p_ch->ndev->name); | |
1289 | dumpit((char *) p_ch, sizeof(struct chbk)); | |
1290 | #endif | |
1291 | CLAW_DBF_TEXT(4,trace,"timer"); | |
1292 | p_ch->flag |= CLAW_TIMER; | |
1293 | wake_up(&p_ch->wait); | |
1294 | #ifdef FUNCTRACE | |
1295 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1296 | p_ch->ndev->name,__FUNCTION__,__LINE__); | |
1297 | #endif | |
1298 | return; | |
1299 | } /* end of claw_timer */ | |
1300 | ||
1301 | ||
1302 | /* | |
1303 | * | |
1304 | * functions | |
1305 | */ | |
1306 | ||
1307 | ||
1308 | /*-------------------------------------------------------------------* | |
1309 | * * | |
1310 | * pages_to_order_of_mag * | |
1311 | * * | |
1312 | * takes a number of pages from 1 to 512 and returns the * | |
1313 | * log(num_pages)/log(2) get_free_pages() needs a base 2 order * | |
1314 | * of magnitude get_free_pages() has an upper order of 9 * | |
1315 | *--------------------------------------------------------------------*/ | |
1316 | ||
1317 | static int inline | |
1318 | pages_to_order_of_mag(int num_of_pages) | |
1319 | { | |
1320 | int order_of_mag=1; /* assume 2 pages */ | |
1321 | int nump=2; | |
1322 | #ifdef FUNCTRACE | |
1323 | printk(KERN_INFO "%s Enter pages = %d \n",__FUNCTION__,num_of_pages); | |
1324 | #endif | |
1325 | CLAW_DBF_TEXT_(5,trace,"pages%d",num_of_pages); | |
1326 | if (num_of_pages == 1) {return 0; } /* magnitude of 0 = 1 page */ | |
1327 | /* 512 pages = 2Meg on 4k page systems */ | |
1328 | if (num_of_pages >= 512) {return 9; } | |
1329 | /* we have two or more pages order is at least 1 */ | |
1330 | for (nump=2 ;nump <= 512;nump*=2) { | |
1331 | if (num_of_pages <= nump) | |
1332 | break; | |
1333 | order_of_mag +=1; | |
1334 | } | |
1335 | if (order_of_mag > 9) { order_of_mag = 9; } /* I know it's paranoid */ | |
1336 | #ifdef FUNCTRACE | |
1337 | printk(KERN_INFO "%s Exit on line %d, order = %d\n", | |
1338 | __FUNCTION__,__LINE__, order_of_mag); | |
1339 | #endif | |
1340 | CLAW_DBF_TEXT_(5,trace,"mag%d",order_of_mag); | |
1341 | return order_of_mag; | |
1342 | } | |
1343 | ||
1344 | /*-------------------------------------------------------------------* | |
1345 | * * | |
1346 | * add_claw_reads * | |
1347 | * * | |
1348 | *--------------------------------------------------------------------*/ | |
1349 | static int | |
1350 | add_claw_reads(struct net_device *dev, struct ccwbk* p_first, | |
1351 | struct ccwbk* p_last) | |
1352 | { | |
1353 | struct claw_privbk *privptr; | |
1354 | struct ccw1 temp_ccw; | |
1355 | struct endccw * p_end; | |
1356 | #ifdef IOTRACE | |
1357 | struct ccwbk* p_buf; | |
1358 | #endif | |
1359 | #ifdef FUNCTRACE | |
1360 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
1361 | #endif | |
1362 | #ifdef DEBUGMSG | |
1363 | printk(KERN_INFO "dev\n"); | |
1364 | dumpit((char *) dev, sizeof(struct net_device)); | |
1365 | printk(KERN_INFO "p_first\n"); | |
1366 | dumpit((char *) p_first, sizeof(struct ccwbk)); | |
1367 | printk(KERN_INFO "p_last\n"); | |
1368 | dumpit((char *) p_last, sizeof(struct ccwbk)); | |
1369 | #endif | |
1370 | CLAW_DBF_TEXT(4,trace,"addreads"); | |
1371 | privptr = dev->priv; | |
1372 | p_end = privptr->p_end_ccw; | |
1373 | ||
1374 | /* first CCW and last CCW contains a new set of read channel programs | |
1375 | * to apend the running channel programs | |
1376 | */ | |
1377 | if ( p_first==NULL) { | |
1378 | #ifdef FUNCTRACE | |
1379 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1380 | dev->name,__FUNCTION__,__LINE__); | |
1381 | #endif | |
1382 | CLAW_DBF_TEXT(4,trace,"addexit"); | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | /* set up ending CCW sequence for this segment */ | |
1387 | if (p_end->read1) { | |
1388 | p_end->read1=0x00; /* second ending CCW is now active */ | |
1389 | /* reset ending CCWs and setup TIC CCWs */ | |
1390 | p_end->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1391 | p_end->read2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1392 | p_last->r_TIC_1.cda =(__u32)__pa(&p_end->read2_nop1); | |
1393 | p_last->r_TIC_2.cda =(__u32)__pa(&p_end->read2_nop1); | |
1394 | p_end->read2_nop2.cda=0; | |
1395 | p_end->read2_nop2.count=1; | |
1396 | } | |
1397 | else { | |
1398 | p_end->read1=0x01; /* first ending CCW is now active */ | |
1399 | /* reset ending CCWs and setup TIC CCWs */ | |
1400 | p_end->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1401 | p_end->read1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1402 | p_last->r_TIC_1.cda = (__u32)__pa(&p_end->read1_nop1); | |
1403 | p_last->r_TIC_2.cda = (__u32)__pa(&p_end->read1_nop1); | |
1404 | p_end->read1_nop2.cda=0; | |
1405 | p_end->read1_nop2.count=1; | |
1406 | } | |
1407 | ||
1408 | if ( privptr-> p_read_active_first ==NULL ) { | |
1409 | #ifdef DEBUGMSG | |
1410 | printk(KERN_INFO "%s:%s p_read_active_frist == NULL \n", | |
1411 | dev->name,__FUNCTION__); | |
1412 | printk(KERN_INFO "%s:%s Read active first/last changed \n", | |
1413 | dev->name,__FUNCTION__); | |
1414 | #endif | |
1415 | privptr-> p_read_active_first= p_first; /* set new first */ | |
1416 | privptr-> p_read_active_last = p_last; /* set new last */ | |
1417 | } | |
1418 | else { | |
1419 | ||
1420 | #ifdef DEBUGMSG | |
1421 | printk(KERN_INFO "%s:%s Read in progress \n", | |
1422 | dev->name,__FUNCTION__); | |
1423 | #endif | |
1424 | /* set up TIC ccw */ | |
1425 | temp_ccw.cda= (__u32)__pa(&p_first->read); | |
1426 | temp_ccw.count=0; | |
1427 | temp_ccw.flags=0; | |
1428 | temp_ccw.cmd_code = CCW_CLAW_CMD_TIC; | |
1429 | ||
1430 | ||
1431 | if (p_end->read1) { | |
1432 | ||
1433 | /* first set of CCW's is chained to the new read */ | |
1434 | /* chain, so the second set is chained to the active chain. */ | |
1435 | /* Therefore modify the second set to point to the new */ | |
1436 | /* read chain set up TIC CCWs */ | |
1437 | /* make sure we update the CCW so channel doesn't fetch it */ | |
1438 | /* when it's only half done */ | |
1439 | memcpy( &p_end->read2_nop2, &temp_ccw , | |
1440 | sizeof(struct ccw1)); | |
1441 | privptr->p_read_active_last->r_TIC_1.cda= | |
1442 | (__u32)__pa(&p_first->read); | |
1443 | privptr->p_read_active_last->r_TIC_2.cda= | |
1444 | (__u32)__pa(&p_first->read); | |
1445 | } | |
1446 | else { | |
1447 | /* make sure we update the CCW so channel doesn't */ | |
1448 | /* fetch it when it is only half done */ | |
1449 | memcpy( &p_end->read1_nop2, &temp_ccw , | |
1450 | sizeof(struct ccw1)); | |
1451 | privptr->p_read_active_last->r_TIC_1.cda= | |
1452 | (__u32)__pa(&p_first->read); | |
1453 | privptr->p_read_active_last->r_TIC_2.cda= | |
1454 | (__u32)__pa(&p_first->read); | |
1455 | } | |
1456 | /* chain in new set of blocks */ | |
1457 | privptr->p_read_active_last->next = p_first; | |
1458 | privptr->p_read_active_last=p_last; | |
1459 | } /* end of if ( privptr-> p_read_active_first ==NULL) */ | |
1460 | #ifdef IOTRACE | |
1461 | printk(KERN_INFO "%s:%s dump p_last CCW BK \n",dev->name,__FUNCTION__); | |
1462 | dumpit((char *)p_last, sizeof(struct ccwbk)); | |
1463 | printk(KERN_INFO "%s:%s dump p_end CCW BK \n",dev->name,__FUNCTION__); | |
1464 | dumpit((char *)p_end, sizeof(struct endccw)); | |
1465 | ||
1466 | printk(KERN_INFO "%s:%s dump p_first CCW BK \n",dev->name,__FUNCTION__); | |
1467 | dumpit((char *)p_first, sizeof(struct ccwbk)); | |
1468 | printk(KERN_INFO "%s:%s Dump Active CCW chain \n", | |
1469 | dev->name,__FUNCTION__); | |
1470 | p_buf=privptr->p_read_active_first; | |
1471 | while (p_buf!=NULL) { | |
1472 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
1473 | p_buf=p_buf->next; | |
1474 | } | |
1475 | #endif | |
1476 | #ifdef FUNCTRACE | |
1477 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1478 | dev->name,__FUNCTION__,__LINE__); | |
1479 | #endif | |
1480 | CLAW_DBF_TEXT(4,trace,"addexit"); | |
1481 | return 0; | |
1482 | } /* end of add_claw_reads */ | |
1483 | ||
1484 | /*-------------------------------------------------------------------* | |
1485 | * ccw_check_return_code * | |
1486 | * * | |
1487 | *-------------------------------------------------------------------*/ | |
1488 | ||
1489 | static void inline | |
1490 | ccw_check_return_code(struct ccw_device *cdev, int return_code) | |
1491 | { | |
1492 | #ifdef FUNCTRACE | |
1493 | printk(KERN_INFO "%s: %s() > enter \n", | |
1494 | cdev->dev.bus_id,__FUNCTION__); | |
1495 | #endif | |
1496 | CLAW_DBF_TEXT(4,trace,"ccwret"); | |
1497 | #ifdef DEBUGMSG | |
1498 | printk(KERN_INFO "variable cdev =\n"); | |
1499 | dumpit((char *) cdev, sizeof(struct ccw_device)); | |
1500 | printk(KERN_INFO "variable return_code = %d\n",return_code); | |
1501 | #endif | |
1502 | if (return_code != 0) { | |
1503 | switch (return_code) { | |
1504 | case -EBUSY: | |
1505 | printk(KERN_INFO "%s: Busy !\n", | |
1506 | cdev->dev.bus_id); | |
1507 | break; | |
1508 | case -ENODEV: | |
1509 | printk(KERN_EMERG "%s: Missing device called " | |
1510 | "for IO ENODEV\n", cdev->dev.bus_id); | |
1511 | break; | |
1512 | case -EIO: | |
1513 | printk(KERN_EMERG "%s: Status pending... EIO \n", | |
1514 | cdev->dev.bus_id); | |
1515 | break; | |
1516 | case -EINVAL: | |
1517 | printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n", | |
1518 | cdev->dev.bus_id); | |
1519 | break; | |
1520 | default: | |
1521 | printk(KERN_EMERG "%s: Unknown error in " | |
1522 | "Do_IO %d\n",cdev->dev.bus_id, return_code); | |
1523 | } | |
1524 | } | |
1525 | #ifdef FUNCTRACE | |
1526 | printk(KERN_INFO "%s: %s() > exit on line %d\n", | |
1527 | cdev->dev.bus_id,__FUNCTION__,__LINE__); | |
1528 | #endif | |
1529 | CLAW_DBF_TEXT(4,trace,"ccwret"); | |
1530 | } /* end of ccw_check_return_code */ | |
1531 | ||
1532 | /*-------------------------------------------------------------------* | |
1533 | * ccw_check_unit_check * | |
1534 | *--------------------------------------------------------------------*/ | |
1535 | ||
1536 | static void inline | |
1537 | ccw_check_unit_check(struct chbk * p_ch, unsigned char sense ) | |
1538 | { | |
1539 | struct net_device *dev = p_ch->ndev; | |
1540 | ||
1541 | #ifdef FUNCTRACE | |
1542 | printk(KERN_INFO "%s: %s() > enter\n",dev->name,__FUNCTION__); | |
1543 | #endif | |
1544 | #ifdef DEBUGMSG | |
1545 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1546 | dumpit((char *)dev, sizeof(struct net_device)); | |
1547 | printk(KERN_INFO "%s: variable sense =\n",dev->name); | |
1548 | dumpit((char *)&sense, 2); | |
1549 | #endif | |
1550 | CLAW_DBF_TEXT(4,trace,"unitchek"); | |
1551 | ||
1552 | printk(KERN_INFO "%s: Unit Check with sense byte:0x%04x\n", | |
1553 | dev->name, sense); | |
1554 | ||
1555 | if (sense & 0x40) { | |
1556 | if (sense & 0x01) { | |
1557 | printk(KERN_WARNING "%s: Interface disconnect or " | |
1558 | "Selective reset " | |
1559 | "occurred (remote side)\n", dev->name); | |
1560 | } | |
1561 | else { | |
1562 | printk(KERN_WARNING "%s: System reset occured" | |
1563 | " (remote side)\n", dev->name); | |
1564 | } | |
1565 | } | |
1566 | else if (sense & 0x20) { | |
1567 | if (sense & 0x04) { | |
1568 | printk(KERN_WARNING "%s: Data-streaming " | |
1569 | "timeout)\n", dev->name); | |
1570 | } | |
1571 | else { | |
1572 | printk(KERN_WARNING "%s: Data-transfer parity" | |
1573 | " error\n", dev->name); | |
1574 | } | |
1575 | } | |
1576 | else if (sense & 0x10) { | |
1577 | if (sense & 0x20) { | |
1578 | printk(KERN_WARNING "%s: Hardware malfunction " | |
1579 | "(remote side)\n", dev->name); | |
1580 | } | |
1581 | else { | |
1582 | printk(KERN_WARNING "%s: read-data parity error " | |
1583 | "(remote side)\n", dev->name); | |
1584 | } | |
1585 | } | |
1586 | ||
1587 | #ifdef FUNCTRACE | |
1588 | printk(KERN_INFO "%s: %s() exit on line %d\n", | |
1589 | dev->name,__FUNCTION__,__LINE__); | |
1590 | #endif | |
1591 | } /* end of ccw_check_unit_check */ | |
1592 | ||
1593 | ||
1594 | ||
1595 | /*-------------------------------------------------------------------* | |
1596 | * Dump buffer format * | |
1597 | * * | |
1598 | *--------------------------------------------------------------------*/ | |
1599 | #ifdef DEBUG | |
1600 | static void | |
1601 | dumpit(char* buf, int len) | |
1602 | { | |
1603 | ||
1604 | __u32 ct, sw, rm, dup; | |
1605 | char *ptr, *rptr; | |
1606 | char tbuf[82], tdup[82]; | |
1607 | #if (CONFIG_ARCH_S390X) | |
1608 | char addr[22]; | |
1609 | #else | |
1610 | char addr[12]; | |
1611 | #endif | |
1612 | char boff[12]; | |
1613 | char bhex[82], duphex[82]; | |
1614 | char basc[40]; | |
1615 | ||
1616 | sw = 0; | |
1617 | rptr =ptr=buf; | |
1618 | rm = 16; | |
1619 | duphex[0] = 0x00; | |
1620 | dup = 0; | |
1621 | for ( ct=0; ct < len; ct++, ptr++, rptr++ ) { | |
1622 | if (sw == 0) { | |
1623 | #if (CONFIG_ARCH_S390X) | |
1624 | sprintf(addr, "%16.16lX",(unsigned long)rptr); | |
1625 | #else | |
1626 | sprintf(addr, "%8.8X",(__u32)rptr); | |
1627 | #endif | |
1628 | sprintf(boff, "%4.4X", (__u32)ct); | |
1629 | bhex[0] = '\0'; | |
1630 | basc[0] = '\0'; | |
1631 | } | |
1632 | if ((sw == 4) || (sw == 12)) { | |
1633 | strcat(bhex, " "); | |
1634 | } | |
1635 | if (sw == 8) { | |
1636 | strcat(bhex, " "); | |
1637 | } | |
1638 | #if (CONFIG_ARCH_S390X) | |
1639 | sprintf(tbuf,"%2.2lX", (unsigned long)*ptr); | |
1640 | #else | |
1641 | sprintf(tbuf,"%2.2X", (__u32)*ptr); | |
1642 | #endif | |
1643 | tbuf[2] = '\0'; | |
1644 | strcat(bhex, tbuf); | |
1645 | if ((0!=isprint(*ptr)) && (*ptr >= 0x20)) { | |
1646 | basc[sw] = *ptr; | |
1647 | } | |
1648 | else { | |
1649 | basc[sw] = '.'; | |
1650 | } | |
1651 | basc[sw+1] = '\0'; | |
1652 | sw++; | |
1653 | rm--; | |
1654 | if (sw==16) { | |
1655 | if ((strcmp(duphex, bhex)) !=0) { | |
1656 | if (dup !=0) { | |
1657 | sprintf(tdup,"Duplicate as above to" | |
1658 | " %s", addr); | |
1659 | printk( KERN_INFO " " | |
1660 | " --- %s ---\n",tdup); | |
1661 | } | |
1662 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1663 | addr, boff, bhex, basc); | |
1664 | dup = 0; | |
1665 | strcpy(duphex, bhex); | |
1666 | } | |
1667 | else { | |
1668 | dup++; | |
1669 | } | |
1670 | sw = 0; | |
1671 | rm = 16; | |
1672 | } | |
1673 | } /* endfor */ | |
1674 | ||
1675 | if (sw != 0) { | |
1676 | for ( ; rm > 0; rm--, sw++ ) { | |
1677 | if ((sw==4) || (sw==12)) strcat(bhex, " "); | |
1678 | if (sw==8) strcat(bhex, " "); | |
1679 | strcat(bhex, " "); | |
1680 | strcat(basc, " "); | |
1681 | } | |
1682 | if (dup !=0) { | |
1683 | sprintf(tdup,"Duplicate as above to %s", addr); | |
1684 | printk( KERN_INFO " --- %s ---\n", | |
1685 | tdup); | |
1686 | } | |
1687 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1688 | addr, boff, bhex, basc); | |
1689 | } | |
1690 | else { | |
1691 | if (dup >=1) { | |
1692 | sprintf(tdup,"Duplicate as above to %s", addr); | |
1693 | printk( KERN_INFO " --- %s ---\n", | |
1694 | tdup); | |
1695 | } | |
1696 | if (dup !=0) { | |
1697 | printk( KERN_INFO " %s (+%s) : %s [%s]\n", | |
1698 | addr, boff, bhex, basc); | |
1699 | } | |
1700 | } | |
1701 | return; | |
1702 | ||
1703 | } /* end of dumpit */ | |
1704 | #endif | |
1705 | ||
1706 | /*-------------------------------------------------------------------* | |
1707 | * find_link * | |
1708 | *--------------------------------------------------------------------*/ | |
1709 | static int | |
1710 | find_link(struct net_device *dev, char *host_name, char *ws_name ) | |
1711 | { | |
1712 | struct claw_privbk *privptr; | |
1713 | struct claw_env *p_env; | |
1714 | int rc=0; | |
1715 | ||
1716 | #ifdef FUNCTRACE | |
1717 | printk(KERN_INFO "%s:%s > enter \n",dev->name,__FUNCTION__); | |
1718 | #endif | |
1719 | CLAW_DBF_TEXT(2,setup,"findlink"); | |
1720 | #ifdef DEBUGMSG | |
1721 | printk(KERN_INFO "%s: variable dev = \n",dev->name); | |
1722 | dumpit((char *) dev, sizeof(struct net_device)); | |
1723 | printk(KERN_INFO "%s: variable host_name = %s\n",dev->name, host_name); | |
1724 | printk(KERN_INFO "%s: variable ws_name = %s\n",dev->name, ws_name); | |
1725 | #endif | |
1726 | privptr=dev->priv; | |
1727 | p_env=privptr->p_env; | |
1728 | switch (p_env->packing) | |
1729 | { | |
1730 | case PACKING_ASK: | |
1731 | if ((memcmp(WS_APPL_NAME_PACKED, host_name, 8)!=0) || | |
1732 | (memcmp(WS_APPL_NAME_PACKED, ws_name, 8)!=0 )) | |
1733 | rc = EINVAL; | |
1734 | break; | |
1735 | case DO_PACKED: | |
1736 | case PACK_SEND: | |
1737 | if ((memcmp(WS_APPL_NAME_IP_NAME, host_name, 8)!=0) || | |
1738 | (memcmp(WS_APPL_NAME_IP_NAME, ws_name, 8)!=0 )) | |
1739 | rc = EINVAL; | |
1740 | break; | |
1741 | default: | |
1742 | if ((memcmp(HOST_APPL_NAME, host_name, 8)!=0) || | |
1743 | (memcmp(p_env->api_type , ws_name, 8)!=0)) | |
1744 | rc = EINVAL; | |
1745 | break; | |
1746 | } | |
1747 | ||
1748 | #ifdef FUNCTRACE | |
1749 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
1750 | dev->name,__FUNCTION__,__LINE__); | |
1751 | #endif | |
1752 | return 0; | |
1753 | } /* end of find_link */ | |
1754 | ||
1755 | /*-------------------------------------------------------------------* | |
1756 | * claw_hw_tx * | |
1757 | * * | |
1758 | * * | |
1759 | *-------------------------------------------------------------------*/ | |
1760 | ||
1761 | static int | |
1762 | claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) | |
1763 | { | |
1764 | int rc=0; | |
1765 | struct claw_privbk *privptr; | |
1766 | struct ccwbk *p_this_ccw; | |
1767 | struct ccwbk *p_first_ccw; | |
1768 | struct ccwbk *p_last_ccw; | |
1769 | __u32 numBuffers; | |
1770 | signed long len_of_data; | |
1771 | unsigned long bytesInThisBuffer; | |
1772 | unsigned char *pDataAddress; | |
1773 | struct endccw *pEnd; | |
1774 | struct ccw1 tempCCW; | |
1775 | struct chbk *p_ch; | |
1776 | struct claw_env *p_env; | |
1777 | int lock; | |
1778 | struct clawph *pk_head; | |
1779 | struct chbk *ch; | |
1780 | #ifdef IOTRACE | |
1781 | struct ccwbk *p_buf; | |
1782 | #endif | |
1783 | #ifdef FUNCTRACE | |
1784 | printk(KERN_INFO "%s: %s() > enter\n",dev->name,__FUNCTION__); | |
1785 | #endif | |
1786 | CLAW_DBF_TEXT(4,trace,"hw_tx"); | |
1787 | #ifdef DEBUGMSG | |
1788 | printk(KERN_INFO "%s: variable dev skb =\n",dev->name); | |
1789 | dumpit((char *) skb, sizeof(struct sk_buff)); | |
1790 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
1791 | dumpit((char *) dev, sizeof(struct net_device)); | |
1792 | printk(KERN_INFO "%s: variable linkid = %ld\n",dev->name,linkid); | |
1793 | #endif | |
1794 | privptr = (struct claw_privbk *) (dev->priv); | |
1795 | p_ch=(struct chbk *)&privptr->channel[WRITE]; | |
1796 | p_env =privptr->p_env; | |
1797 | #ifdef IOTRACE | |
1798 | printk(KERN_INFO "%s: %s() dump sk_buff \n",dev->name,__FUNCTION__); | |
1799 | dumpit((char *)skb ,sizeof(struct sk_buff)); | |
1800 | #endif | |
1801 | claw_free_wrt_buf(dev); /* Clean up free chain if posible */ | |
1802 | /* scan the write queue to free any completed write packets */ | |
1803 | p_first_ccw=NULL; | |
1804 | p_last_ccw=NULL; | |
1805 | if ((p_env->packing >= PACK_SEND) && | |
1806 | (skb->cb[1] != 'P')) { | |
1807 | skb_push(skb,sizeof(struct clawph)); | |
1808 | pk_head=(struct clawph *)skb->data; | |
1809 | pk_head->len=skb->len-sizeof(struct clawph); | |
1810 | if (pk_head->len%4) { | |
1811 | pk_head->len+= 4-(pk_head->len%4); | |
1812 | skb_pad(skb,4-(pk_head->len%4)); | |
1813 | skb_put(skb,4-(pk_head->len%4)); | |
1814 | } | |
1815 | if (p_env->packing == DO_PACKED) | |
1816 | pk_head->link_num = linkid; | |
1817 | else | |
1818 | pk_head->link_num = 0; | |
1819 | pk_head->flag = 0x00; | |
1820 | skb_pad(skb,4); | |
1821 | skb->cb[1] = 'P'; | |
1822 | } | |
1823 | if (linkid == 0) { | |
1824 | if (claw_check_busy(dev)) { | |
1825 | if (privptr->write_free_count!=0) { | |
1826 | claw_clear_busy(dev); | |
1827 | } | |
1828 | else { | |
1829 | claw_strt_out_IO(dev ); | |
1830 | claw_free_wrt_buf( dev ); | |
1831 | if (privptr->write_free_count==0) { | |
1832 | #ifdef IOTRACE | |
1833 | printk(KERN_INFO "%s: " | |
1834 | "(claw_check_busy) no free write " | |
1835 | "buffers\n", dev->name); | |
1836 | #endif | |
1837 | ch = &privptr->channel[WRITE]; | |
1838 | atomic_inc(&skb->users); | |
1839 | skb_queue_tail(&ch->collect_queue, skb); | |
1840 | goto Done; | |
1841 | } | |
1842 | else { | |
1843 | claw_clear_busy(dev); | |
1844 | } | |
1845 | } | |
1846 | } | |
1847 | /* tx lock */ | |
1848 | if (claw_test_and_setbit_busy(TB_TX,dev)) { /* set to busy */ | |
1849 | #ifdef DEBUGMSG | |
1850 | printk(KERN_INFO "%s: busy (claw_test_and_setbit_" | |
1851 | "busy)\n", dev->name); | |
1852 | #endif | |
1853 | ch = &privptr->channel[WRITE]; | |
1854 | atomic_inc(&skb->users); | |
1855 | skb_queue_tail(&ch->collect_queue, skb); | |
1856 | claw_strt_out_IO(dev ); | |
1857 | rc=-EBUSY; | |
1858 | goto Done2; | |
1859 | } | |
1860 | } | |
1861 | /* See how many write buffers are required to hold this data */ | |
1862 | numBuffers= ( skb->len + privptr->p_env->write_size - 1) / | |
1863 | ( privptr->p_env->write_size); | |
1864 | ||
1865 | /* If that number of buffers isn't available, give up for now */ | |
1866 | if (privptr->write_free_count < numBuffers || | |
1867 | privptr->p_write_free_chain == NULL ) { | |
1868 | ||
1869 | claw_setbit_busy(TB_NOBUFFER,dev); | |
1870 | ||
1871 | #ifdef DEBUGMSG | |
1872 | printk(KERN_INFO "%s: busy (claw_setbit_busy" | |
1873 | "(TB_NOBUFFER))\n", dev->name); | |
1874 | printk(KERN_INFO " free_count: %d, numBuffers : %d\n", | |
1875 | (int)privptr->write_free_count,(int) numBuffers ); | |
1876 | #endif | |
1877 | ch = &privptr->channel[WRITE]; | |
1878 | atomic_inc(&skb->users); | |
1879 | skb_queue_tail(&ch->collect_queue, skb); | |
1880 | CLAW_DBF_TEXT(2,trace,"clawbusy"); | |
1881 | goto Done2; | |
1882 | } | |
1883 | pDataAddress=skb->data; | |
1884 | len_of_data=skb->len; | |
1885 | ||
1886 | while (len_of_data > 0) { | |
1887 | #ifdef DEBUGMSG | |
1888 | printk(KERN_INFO "%s: %s() length-of-data is %ld \n", | |
1889 | dev->name ,__FUNCTION__,len_of_data); | |
1890 | dumpit((char *)pDataAddress ,64); | |
1891 | #endif | |
1892 | p_this_ccw=privptr->p_write_free_chain; /* get a block */ | |
1893 | if (p_this_ccw == NULL) { /* lost the race */ | |
1894 | ch = &privptr->channel[WRITE]; | |
1895 | atomic_inc(&skb->users); | |
1896 | skb_queue_tail(&ch->collect_queue, skb); | |
1897 | goto Done2; | |
1898 | } | |
1899 | privptr->p_write_free_chain=p_this_ccw->next; | |
1900 | p_this_ccw->next=NULL; | |
1901 | --privptr->write_free_count; /* -1 */ | |
1902 | bytesInThisBuffer=len_of_data; | |
1903 | memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer); | |
1904 | len_of_data-=bytesInThisBuffer; | |
1905 | pDataAddress+=(unsigned long)bytesInThisBuffer; | |
1906 | /* setup write CCW */ | |
1907 | p_this_ccw->write.cmd_code = (linkid * 8) +1; | |
1908 | if (len_of_data>0) { | |
1909 | p_this_ccw->write.cmd_code+=MORE_to_COME_FLAG; | |
1910 | } | |
1911 | p_this_ccw->write.count=bytesInThisBuffer; | |
1912 | /* now add to end of this chain */ | |
1913 | if (p_first_ccw==NULL) { | |
1914 | p_first_ccw=p_this_ccw; | |
1915 | } | |
1916 | if (p_last_ccw!=NULL) { | |
1917 | p_last_ccw->next=p_this_ccw; | |
1918 | /* set up TIC ccws */ | |
1919 | p_last_ccw->w_TIC_1.cda= | |
1920 | (__u32)__pa(&p_this_ccw->write); | |
1921 | } | |
1922 | p_last_ccw=p_this_ccw; /* save new last block */ | |
1923 | #ifdef IOTRACE | |
1924 | printk(KERN_INFO "%s: %s() > CCW and Buffer %ld bytes long \n", | |
1925 | dev->name,__FUNCTION__,bytesInThisBuffer); | |
1926 | dumpit((char *)p_this_ccw, sizeof(struct ccwbk)); | |
1927 | dumpit((char *)p_this_ccw->p_buffer, 64); | |
1928 | #endif | |
1929 | } | |
1930 | ||
1931 | /* FirstCCW and LastCCW now contain a new set of write channel | |
1932 | * programs to append to the running channel program | |
1933 | */ | |
1934 | ||
1935 | if (p_first_ccw!=NULL) { | |
1936 | /* setup ending ccw sequence for this segment */ | |
1937 | pEnd=privptr->p_end_ccw; | |
1938 | if (pEnd->write1) { | |
1939 | pEnd->write1=0x00; /* second end ccw is now active */ | |
1940 | /* set up Tic CCWs */ | |
1941 | p_last_ccw->w_TIC_1.cda= | |
1942 | (__u32)__pa(&pEnd->write2_nop1); | |
1943 | pEnd->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1944 | pEnd->write2_nop2.flags = | |
1945 | CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1946 | pEnd->write2_nop2.cda=0; | |
1947 | pEnd->write2_nop2.count=1; | |
1948 | } | |
1949 | else { /* end of if (pEnd->write1)*/ | |
1950 | pEnd->write1=0x01; /* first end ccw is now active */ | |
1951 | /* set up Tic CCWs */ | |
1952 | p_last_ccw->w_TIC_1.cda= | |
1953 | (__u32)__pa(&pEnd->write1_nop1); | |
1954 | pEnd->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
1955 | pEnd->write1_nop2.flags = | |
1956 | CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
1957 | pEnd->write1_nop2.cda=0; | |
1958 | pEnd->write1_nop2.count=1; | |
1959 | } /* end if if (pEnd->write1) */ | |
1960 | ||
1961 | ||
1962 | if (privptr->p_write_active_first==NULL ) { | |
1963 | privptr->p_write_active_first=p_first_ccw; | |
1964 | privptr->p_write_active_last=p_last_ccw; | |
1965 | } | |
1966 | else { | |
1967 | ||
1968 | /* set up Tic CCWs */ | |
1969 | ||
1970 | tempCCW.cda=(__u32)__pa(&p_first_ccw->write); | |
1971 | tempCCW.count=0; | |
1972 | tempCCW.flags=0; | |
1973 | tempCCW.cmd_code=CCW_CLAW_CMD_TIC; | |
1974 | ||
1975 | if (pEnd->write1) { | |
1976 | ||
1977 | /* | |
1978 | * first set of ending CCW's is chained to the new write | |
1979 | * chain, so the second set is chained to the active chain | |
1980 | * Therefore modify the second set to point the new write chain. | |
1981 | * make sure we update the CCW atomically | |
1982 | * so channel does not fetch it when it's only half done | |
1983 | */ | |
1984 | memcpy( &pEnd->write2_nop2, &tempCCW , | |
1985 | sizeof(struct ccw1)); | |
1986 | privptr->p_write_active_last->w_TIC_1.cda= | |
1987 | (__u32)__pa(&p_first_ccw->write); | |
1988 | } | |
1989 | else { | |
1990 | ||
1991 | /*make sure we update the CCW atomically | |
1992 | *so channel does not fetch it when it's only half done | |
1993 | */ | |
1994 | memcpy(&pEnd->write1_nop2, &tempCCW , | |
1995 | sizeof(struct ccw1)); | |
1996 | privptr->p_write_active_last->w_TIC_1.cda= | |
1997 | (__u32)__pa(&p_first_ccw->write); | |
1998 | ||
1999 | } /* end if if (pEnd->write1) */ | |
2000 | ||
2001 | privptr->p_write_active_last->next=p_first_ccw; | |
2002 | privptr->p_write_active_last=p_last_ccw; | |
2003 | } | |
2004 | ||
2005 | } /* endif (p_first_ccw!=NULL) */ | |
2006 | ||
2007 | ||
2008 | #ifdef IOTRACE | |
2009 | printk(KERN_INFO "%s: %s() > Dump Active CCW chain \n", | |
2010 | dev->name,__FUNCTION__); | |
2011 | p_buf=privptr->p_write_active_first; | |
2012 | while (p_buf!=NULL) { | |
2013 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2014 | p_buf=p_buf->next; | |
2015 | } | |
2016 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
2017 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
2018 | #endif | |
2019 | dev_kfree_skb(skb); | |
2020 | if (linkid==0) { | |
2021 | lock=LOCK_NO; | |
2022 | } | |
2023 | else { | |
2024 | lock=LOCK_YES; | |
2025 | } | |
2026 | claw_strt_out_IO(dev ); | |
2027 | /* if write free count is zero , set NOBUFFER */ | |
2028 | #ifdef DEBUGMSG | |
2029 | printk(KERN_INFO "%s: %s() > free_count is %d\n", | |
2030 | dev->name,__FUNCTION__, | |
2031 | (int) privptr->write_free_count ); | |
2032 | #endif | |
2033 | if (privptr->write_free_count==0) { | |
2034 | claw_setbit_busy(TB_NOBUFFER,dev); | |
2035 | } | |
2036 | Done2: | |
2037 | claw_clearbit_busy(TB_TX,dev); | |
2038 | Done: | |
2039 | #ifdef FUNCTRACE | |
2040 | printk(KERN_INFO "%s: %s() > exit on line %d, rc = %d \n", | |
2041 | dev->name,__FUNCTION__,__LINE__, rc); | |
2042 | #endif | |
2043 | return(rc); | |
2044 | } /* end of claw_hw_tx */ | |
2045 | ||
2046 | /*-------------------------------------------------------------------* | |
2047 | * * | |
2048 | * init_ccw_bk * | |
2049 | * * | |
2050 | *--------------------------------------------------------------------*/ | |
2051 | ||
2052 | static int | |
2053 | init_ccw_bk(struct net_device *dev) | |
2054 | { | |
2055 | ||
2056 | __u32 ccw_blocks_required; | |
2057 | __u32 ccw_blocks_perpage; | |
2058 | __u32 ccw_pages_required; | |
2059 | __u32 claw_reads_perpage=1; | |
2060 | __u32 claw_read_pages; | |
2061 | __u32 claw_writes_perpage=1; | |
2062 | __u32 claw_write_pages; | |
2063 | void *p_buff=NULL; | |
2064 | struct ccwbk*p_free_chain; | |
2065 | struct ccwbk*p_buf; | |
2066 | struct ccwbk*p_last_CCWB; | |
2067 | struct ccwbk*p_first_CCWB; | |
2068 | struct endccw *p_endccw=NULL; | |
2069 | addr_t real_address; | |
2070 | struct claw_privbk *privptr=dev->priv; | |
2071 | struct clawh *pClawH=NULL; | |
2072 | addr_t real_TIC_address; | |
2073 | int i,j; | |
2074 | #ifdef FUNCTRACE | |
2075 | printk(KERN_INFO "%s: %s() enter \n",dev->name,__FUNCTION__); | |
2076 | #endif | |
2077 | CLAW_DBF_TEXT(4,trace,"init_ccw"); | |
2078 | #ifdef DEBUGMSG | |
2079 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
2080 | dumpit((char *) dev, sizeof(struct net_device)); | |
2081 | #endif | |
2082 | ||
2083 | /* initialize statistics field */ | |
2084 | privptr->active_link_ID=0; | |
2085 | /* initialize ccwbk pointers */ | |
2086 | privptr->p_write_free_chain=NULL; /* pointer to free ccw chain*/ | |
2087 | privptr->p_write_active_first=NULL; /* pointer to the first write ccw*/ | |
2088 | privptr->p_write_active_last=NULL; /* pointer to the last write ccw*/ | |
2089 | privptr->p_read_active_first=NULL; /* pointer to the first read ccw*/ | |
2090 | privptr->p_read_active_last=NULL; /* pointer to the last read ccw */ | |
2091 | privptr->p_end_ccw=NULL; /* pointer to ending ccw */ | |
2092 | privptr->p_claw_signal_blk=NULL; /* pointer to signal block */ | |
2093 | privptr->buffs_alloc = 0; | |
2094 | memset(&privptr->end_ccw, 0x00, sizeof(struct endccw)); | |
2095 | memset(&privptr->ctl_bk, 0x00, sizeof(struct clawctl)); | |
2096 | /* initialize free write ccwbk counter */ | |
2097 | privptr->write_free_count=0; /* number of free bufs on write chain */ | |
2098 | p_last_CCWB = NULL; | |
2099 | p_first_CCWB= NULL; | |
2100 | /* | |
2101 | * We need 1 CCW block for each read buffer, 1 for each | |
2102 | * write buffer, plus 1 for ClawSignalBlock | |
2103 | */ | |
2104 | ccw_blocks_required = | |
2105 | privptr->p_env->read_buffers+privptr->p_env->write_buffers+1; | |
2106 | #ifdef DEBUGMSG | |
2107 | printk(KERN_INFO "%s: %s() " | |
2108 | "ccw_blocks_required=%d\n", | |
2109 | dev->name,__FUNCTION__, | |
2110 | ccw_blocks_required); | |
2111 | printk(KERN_INFO "%s: %s() " | |
2112 | "PAGE_SIZE=0x%x\n", | |
2113 | dev->name,__FUNCTION__, | |
2114 | (unsigned int)PAGE_SIZE); | |
2115 | printk(KERN_INFO "%s: %s() > " | |
2116 | "PAGE_MASK=0x%x\n", | |
2117 | dev->name,__FUNCTION__, | |
2118 | (unsigned int)PAGE_MASK); | |
2119 | #endif | |
2120 | /* | |
2121 | * compute number of CCW blocks that will fit in a page | |
2122 | */ | |
2123 | ccw_blocks_perpage= PAGE_SIZE / CCWBK_SIZE; | |
2124 | ccw_pages_required= | |
2125 | (ccw_blocks_required+ccw_blocks_perpage -1) / | |
2126 | ccw_blocks_perpage; | |
2127 | ||
2128 | #ifdef DEBUGMSG | |
2129 | printk(KERN_INFO "%s: %s() > ccw_blocks_perpage=%d\n", | |
2130 | dev->name,__FUNCTION__, | |
2131 | ccw_blocks_perpage); | |
2132 | printk(KERN_INFO "%s: %s() > ccw_pages_required=%d\n", | |
2133 | dev->name,__FUNCTION__, | |
2134 | ccw_pages_required); | |
2135 | #endif | |
2136 | /* | |
2137 | * read and write sizes are set by 2 constants in claw.h | |
2138 | * 4k and 32k. Unpacked values other than 4k are not going to | |
2139 | * provide good performance. With packing buffers support 32k | |
2140 | * buffers are used. | |
2141 | */ | |
2142 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2143 | claw_reads_perpage= PAGE_SIZE / privptr->p_env->read_size; | |
2144 | claw_read_pages= (privptr->p_env->read_buffers + | |
2145 | claw_reads_perpage -1) / claw_reads_perpage; | |
2146 | } | |
2147 | else { /* > or equal */ | |
2148 | privptr->p_buff_pages_perread= | |
2149 | (privptr->p_env->read_size + PAGE_SIZE - 1) / PAGE_SIZE; | |
2150 | claw_read_pages= | |
2151 | privptr->p_env->read_buffers * privptr->p_buff_pages_perread; | |
2152 | } | |
2153 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2154 | claw_writes_perpage= | |
2155 | PAGE_SIZE / privptr->p_env->write_size; | |
2156 | claw_write_pages= | |
2157 | (privptr->p_env->write_buffers + claw_writes_perpage -1) / | |
2158 | claw_writes_perpage; | |
2159 | ||
2160 | } | |
2161 | else { /* > or equal */ | |
2162 | privptr->p_buff_pages_perwrite= | |
2163 | (privptr->p_env->read_size + PAGE_SIZE - 1) / PAGE_SIZE; | |
2164 | claw_write_pages= | |
2165 | privptr->p_env->write_buffers * privptr->p_buff_pages_perwrite; | |
2166 | } | |
2167 | #ifdef DEBUGMSG | |
2168 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2169 | printk(KERN_INFO "%s: %s() reads_perpage=%d\n", | |
2170 | dev->name,__FUNCTION__, | |
2171 | claw_reads_perpage); | |
2172 | } | |
2173 | else { | |
2174 | printk(KERN_INFO "%s: %s() pages_perread=%d\n", | |
2175 | dev->name,__FUNCTION__, | |
2176 | privptr->p_buff_pages_perread); | |
2177 | } | |
2178 | printk(KERN_INFO "%s: %s() read_pages=%d\n", | |
2179 | dev->name,__FUNCTION__, | |
2180 | claw_read_pages); | |
2181 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2182 | printk(KERN_INFO "%s: %s() writes_perpage=%d\n", | |
2183 | dev->name,__FUNCTION__, | |
2184 | claw_writes_perpage); | |
2185 | } | |
2186 | else { | |
2187 | printk(KERN_INFO "%s: %s() pages_perwrite=%d\n", | |
2188 | dev->name,__FUNCTION__, | |
2189 | privptr->p_buff_pages_perwrite); | |
2190 | } | |
2191 | printk(KERN_INFO "%s: %s() write_pages=%d\n", | |
2192 | dev->name,__FUNCTION__, | |
2193 | claw_write_pages); | |
2194 | #endif | |
2195 | ||
2196 | ||
2197 | /* | |
2198 | * allocate ccw_pages_required | |
2199 | */ | |
2200 | if (privptr->p_buff_ccw==NULL) { | |
2201 | privptr->p_buff_ccw= | |
2202 | (void *)__get_free_pages(__GFP_DMA, | |
2203 | (int)pages_to_order_of_mag(ccw_pages_required )); | |
2204 | if (privptr->p_buff_ccw==NULL) { | |
2205 | printk(KERN_INFO "%s: %s() " | |
2206 | "__get_free_pages for CCWs failed : " | |
2207 | "pages is %d\n", | |
2208 | dev->name,__FUNCTION__, | |
2209 | ccw_pages_required ); | |
2210 | #ifdef FUNCTRACE | |
2211 | printk(KERN_INFO "%s: %s() > " | |
2212 | "exit on line %d, rc = ENOMEM\n", | |
2213 | dev->name,__FUNCTION__, | |
2214 | __LINE__); | |
2215 | #endif | |
2216 | return -ENOMEM; | |
2217 | } | |
2218 | privptr->p_buff_ccw_num=ccw_pages_required; | |
2219 | } | |
2220 | memset(privptr->p_buff_ccw, 0x00, | |
2221 | privptr->p_buff_ccw_num * PAGE_SIZE); | |
2222 | ||
2223 | /* | |
2224 | * obtain ending ccw block address | |
2225 | * | |
2226 | */ | |
2227 | privptr->p_end_ccw = (struct endccw *)&privptr->end_ccw; | |
2228 | real_address = (__u32)__pa(privptr->p_end_ccw); | |
2229 | /* Initialize ending CCW block */ | |
2230 | #ifdef DEBUGMSG | |
2231 | printk(KERN_INFO "%s: %s() begin initialize ending CCW blocks\n", | |
2232 | dev->name,__FUNCTION__); | |
2233 | #endif | |
2234 | ||
2235 | p_endccw=privptr->p_end_ccw; | |
2236 | p_endccw->real=real_address; | |
2237 | p_endccw->write1=0x00; | |
2238 | p_endccw->read1=0x00; | |
2239 | ||
2240 | /* write1_nop1 */ | |
2241 | p_endccw->write1_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2242 | p_endccw->write1_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2243 | p_endccw->write1_nop1.count = 1; | |
2244 | p_endccw->write1_nop1.cda = 0; | |
2245 | ||
2246 | /* write1_nop2 */ | |
2247 | p_endccw->write1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2248 | p_endccw->write1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2249 | p_endccw->write1_nop2.count = 1; | |
2250 | p_endccw->write1_nop2.cda = 0; | |
2251 | ||
2252 | /* write2_nop1 */ | |
2253 | p_endccw->write2_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2254 | p_endccw->write2_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2255 | p_endccw->write2_nop1.count = 1; | |
2256 | p_endccw->write2_nop1.cda = 0; | |
2257 | ||
2258 | /* write2_nop2 */ | |
2259 | p_endccw->write2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2260 | p_endccw->write2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2261 | p_endccw->write2_nop2.count = 1; | |
2262 | p_endccw->write2_nop2.cda = 0; | |
2263 | ||
2264 | /* read1_nop1 */ | |
2265 | p_endccw->read1_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2266 | p_endccw->read1_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2267 | p_endccw->read1_nop1.count = 1; | |
2268 | p_endccw->read1_nop1.cda = 0; | |
2269 | ||
2270 | /* read1_nop2 */ | |
2271 | p_endccw->read1_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2272 | p_endccw->read1_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2273 | p_endccw->read1_nop2.count = 1; | |
2274 | p_endccw->read1_nop2.cda = 0; | |
2275 | ||
2276 | /* read2_nop1 */ | |
2277 | p_endccw->read2_nop1.cmd_code = CCW_CLAW_CMD_NOP; | |
2278 | p_endccw->read2_nop1.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2279 | p_endccw->read2_nop1.count = 1; | |
2280 | p_endccw->read2_nop1.cda = 0; | |
2281 | ||
2282 | /* read2_nop2 */ | |
2283 | p_endccw->read2_nop2.cmd_code = CCW_CLAW_CMD_READFF; | |
2284 | p_endccw->read2_nop2.flags = CCW_FLAG_SLI | CCW_FLAG_SKIP; | |
2285 | p_endccw->read2_nop2.count = 1; | |
2286 | p_endccw->read2_nop2.cda = 0; | |
2287 | ||
2288 | #ifdef IOTRACE | |
2289 | printk(KERN_INFO "%s: %s() dump claw ending CCW BK \n", | |
2290 | dev->name,__FUNCTION__); | |
2291 | dumpit((char *)p_endccw, sizeof(struct endccw)); | |
2292 | #endif | |
2293 | ||
2294 | /* | |
2295 | * Build a chain of CCWs | |
2296 | * | |
2297 | */ | |
2298 | ||
2299 | #ifdef DEBUGMSG | |
2300 | printk(KERN_INFO "%s: %s() Begin build a chain of CCW buffer \n", | |
2301 | dev->name,__FUNCTION__); | |
2302 | #endif | |
2303 | p_buff=privptr->p_buff_ccw; | |
2304 | ||
2305 | p_free_chain=NULL; | |
2306 | for (i=0 ; i < ccw_pages_required; i++ ) { | |
2307 | real_address = (__u32)__pa(p_buff); | |
2308 | p_buf=p_buff; | |
2309 | for (j=0 ; j < ccw_blocks_perpage ; j++) { | |
2310 | p_buf->next = p_free_chain; | |
2311 | p_free_chain = p_buf; | |
2312 | p_buf->real=(__u32)__pa(p_buf); | |
2313 | ++p_buf; | |
2314 | } | |
2315 | p_buff+=PAGE_SIZE; | |
2316 | } | |
2317 | #ifdef DEBUGMSG | |
2318 | printk(KERN_INFO "%s: %s() " | |
2319 | "End build a chain of CCW buffer \n", | |
2320 | dev->name,__FUNCTION__); | |
2321 | p_buf=p_free_chain; | |
2322 | while (p_buf!=NULL) { | |
2323 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2324 | p_buf=p_buf->next; | |
2325 | } | |
2326 | #endif | |
2327 | ||
2328 | /* | |
2329 | * Initialize ClawSignalBlock | |
2330 | * | |
2331 | */ | |
2332 | #ifdef DEBUGMSG | |
2333 | printk(KERN_INFO "%s: %s() " | |
2334 | "Begin initialize ClawSignalBlock \n", | |
2335 | dev->name,__FUNCTION__); | |
2336 | #endif | |
2337 | if (privptr->p_claw_signal_blk==NULL) { | |
2338 | privptr->p_claw_signal_blk=p_free_chain; | |
2339 | p_free_chain=p_free_chain->next; | |
2340 | pClawH=(struct clawh *)privptr->p_claw_signal_blk; | |
2341 | pClawH->length=0xffff; | |
2342 | pClawH->opcode=0xff; | |
2343 | pClawH->flag=CLAW_BUSY; | |
2344 | } | |
2345 | #ifdef DEBUGMSG | |
2346 | printk(KERN_INFO "%s: %s() > End initialize " | |
2347 | "ClawSignalBlock\n", | |
2348 | dev->name,__FUNCTION__); | |
2349 | dumpit((char *)privptr->p_claw_signal_blk, sizeof(struct ccwbk)); | |
2350 | #endif | |
2351 | ||
2352 | /* | |
2353 | * allocate write_pages_required and add to free chain | |
2354 | */ | |
2355 | if (privptr->p_buff_write==NULL) { | |
2356 | if (privptr->p_env->write_size < PAGE_SIZE) { | |
2357 | privptr->p_buff_write= | |
2358 | (void *)__get_free_pages(__GFP_DMA, | |
2359 | (int)pages_to_order_of_mag(claw_write_pages )); | |
2360 | if (privptr->p_buff_write==NULL) { | |
2361 | printk(KERN_INFO "%s: %s() __get_free_pages for write" | |
2362 | " bufs failed : get is for %d pages\n", | |
2363 | dev->name,__FUNCTION__,claw_write_pages ); | |
2364 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2365 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
2366 | privptr->p_buff_ccw=NULL; | |
2367 | #ifdef FUNCTRACE | |
2368 | printk(KERN_INFO "%s: %s() > exit on line %d," | |
2369 | "rc = ENOMEM\n", | |
2370 | dev->name,__FUNCTION__,__LINE__); | |
2371 | #endif | |
2372 | return -ENOMEM; | |
2373 | } | |
2374 | /* | |
2375 | * Build CLAW write free chain | |
2376 | * | |
2377 | */ | |
2378 | ||
2379 | memset(privptr->p_buff_write, 0x00, | |
2380 | ccw_pages_required * PAGE_SIZE); | |
2381 | #ifdef DEBUGMSG | |
2382 | printk(KERN_INFO "%s: %s() Begin build claw write free " | |
2383 | "chain \n",dev->name,__FUNCTION__); | |
2384 | #endif | |
2385 | privptr->p_write_free_chain=NULL; | |
2386 | ||
2387 | p_buff=privptr->p_buff_write; | |
2388 | ||
2389 | for (i=0 ; i< privptr->p_env->write_buffers ; i++) { | |
2390 | p_buf = p_free_chain; /* get a CCW */ | |
2391 | p_free_chain = p_buf->next; | |
2392 | p_buf->next =privptr->p_write_free_chain; | |
2393 | privptr->p_write_free_chain = p_buf; | |
2394 | p_buf-> p_buffer = (struct clawbuf *)p_buff; | |
2395 | p_buf-> write.cda = (__u32)__pa(p_buff); | |
2396 | p_buf-> write.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2397 | p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2398 | p_buf-> w_read_FF.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2399 | p_buf-> w_read_FF.count = 1; | |
2400 | p_buf-> w_read_FF.cda = | |
2401 | (__u32)__pa(&p_buf-> header.flag); | |
2402 | p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2403 | p_buf-> w_TIC_1.flags = 0; | |
2404 | p_buf-> w_TIC_1.count = 0; | |
2405 | ||
2406 | if (((unsigned long)p_buff+privptr->p_env->write_size) >= | |
2407 | ((unsigned long)(p_buff+2* | |
2408 | (privptr->p_env->write_size) -1) & PAGE_MASK)) { | |
2409 | p_buff= p_buff+privptr->p_env->write_size; | |
2410 | } | |
2411 | } | |
2412 | } | |
2413 | else /* Buffers are => PAGE_SIZE. 1 buff per get_free_pages */ | |
2414 | { | |
2415 | privptr->p_write_free_chain=NULL; | |
2416 | for (i = 0; i< privptr->p_env->write_buffers ; i++) { | |
2417 | p_buff=(void *)__get_free_pages(__GFP_DMA, | |
2418 | (int)pages_to_order_of_mag( | |
2419 | privptr->p_buff_pages_perwrite) ); | |
2420 | #ifdef IOTRACE | |
2421 | printk(KERN_INFO "%s:%s __get_free_pages " | |
2422 | "for writes buf: get for %d pages\n", | |
2423 | dev->name,__FUNCTION__, | |
2424 | privptr->p_buff_pages_perwrite); | |
2425 | #endif | |
2426 | if (p_buff==NULL) { | |
2427 | printk(KERN_INFO "%s:%s __get_free_pages" | |
2428 | "for writes buf failed : get is for %d pages\n", | |
2429 | dev->name, | |
2430 | __FUNCTION__, | |
2431 | privptr->p_buff_pages_perwrite ); | |
2432 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2433 | (int)pages_to_order_of_mag( | |
2434 | privptr->p_buff_ccw_num)); | |
2435 | privptr->p_buff_ccw=NULL; | |
2436 | p_buf=privptr->p_buff_write; | |
2437 | while (p_buf!=NULL) { | |
2438 | free_pages((unsigned long) | |
2439 | p_buf->p_buffer, | |
2440 | (int)pages_to_order_of_mag( | |
2441 | privptr->p_buff_pages_perwrite)); | |
2442 | p_buf=p_buf->next; | |
2443 | } | |
2444 | #ifdef FUNCTRACE | |
2445 | printk(KERN_INFO "%s: %s exit on line %d, rc = ENOMEM\n", | |
2446 | dev->name, | |
2447 | __FUNCTION__, | |
2448 | __LINE__); | |
2449 | #endif | |
2450 | return -ENOMEM; | |
2451 | } /* Error on get_pages */ | |
2452 | memset(p_buff, 0x00, privptr->p_env->write_size ); | |
2453 | p_buf = p_free_chain; | |
2454 | p_free_chain = p_buf->next; | |
2455 | p_buf->next = privptr->p_write_free_chain; | |
2456 | privptr->p_write_free_chain = p_buf; | |
2457 | privptr->p_buff_write = p_buf; | |
2458 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2459 | p_buf-> write.cda = (__u32)__pa(p_buff); | |
2460 | p_buf-> write.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2461 | p_buf-> w_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2462 | p_buf-> w_read_FF.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2463 | p_buf-> w_read_FF.count = 1; | |
2464 | p_buf-> w_read_FF.cda = | |
2465 | (__u32)__pa(&p_buf-> header.flag); | |
2466 | p_buf-> w_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2467 | p_buf-> w_TIC_1.flags = 0; | |
2468 | p_buf-> w_TIC_1.count = 0; | |
2469 | } /* for all write_buffers */ | |
2470 | ||
2471 | } /* else buffers are PAGE_SIZE or bigger */ | |
2472 | ||
2473 | } | |
2474 | privptr->p_buff_write_num=claw_write_pages; | |
2475 | privptr->write_free_count=privptr->p_env->write_buffers; | |
2476 | ||
2477 | ||
2478 | #ifdef DEBUGMSG | |
2479 | printk(KERN_INFO "%s:%s End build claw write free chain \n", | |
2480 | dev->name,__FUNCTION__); | |
2481 | p_buf=privptr->p_write_free_chain; | |
2482 | while (p_buf!=NULL) { | |
2483 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2484 | p_buf=p_buf->next; | |
2485 | } | |
2486 | #endif | |
2487 | /* | |
2488 | * allocate read_pages_required and chain to free chain | |
2489 | */ | |
2490 | if (privptr->p_buff_read==NULL) { | |
2491 | if (privptr->p_env->read_size < PAGE_SIZE) { | |
2492 | privptr->p_buff_read= | |
2493 | (void *)__get_free_pages(__GFP_DMA, | |
2494 | (int)pages_to_order_of_mag(claw_read_pages) ); | |
2495 | if (privptr->p_buff_read==NULL) { | |
2496 | printk(KERN_INFO "%s: %s() " | |
2497 | "__get_free_pages for read buf failed : " | |
2498 | "get is for %d pages\n", | |
2499 | dev->name,__FUNCTION__,claw_read_pages ); | |
2500 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2501 | (int)pages_to_order_of_mag( | |
2502 | privptr->p_buff_ccw_num)); | |
2503 | /* free the write pages size is < page size */ | |
2504 | free_pages((unsigned long)privptr->p_buff_write, | |
2505 | (int)pages_to_order_of_mag( | |
2506 | privptr->p_buff_write_num)); | |
2507 | privptr->p_buff_ccw=NULL; | |
2508 | privptr->p_buff_write=NULL; | |
2509 | #ifdef FUNCTRACE | |
2510 | printk(KERN_INFO "%s: %s() > exit on line %d, rc =" | |
2511 | " ENOMEM\n",dev->name,__FUNCTION__,__LINE__); | |
2512 | #endif | |
2513 | return -ENOMEM; | |
2514 | } | |
2515 | memset(privptr->p_buff_read, 0x00, claw_read_pages * PAGE_SIZE); | |
2516 | privptr->p_buff_read_num=claw_read_pages; | |
2517 | /* | |
2518 | * Build CLAW read free chain | |
2519 | * | |
2520 | */ | |
2521 | #ifdef DEBUGMSG | |
2522 | printk(KERN_INFO "%s: %s() Begin build claw read free chain \n", | |
2523 | dev->name,__FUNCTION__); | |
2524 | #endif | |
2525 | p_buff=privptr->p_buff_read; | |
2526 | for (i=0 ; i< privptr->p_env->read_buffers ; i++) { | |
2527 | p_buf = p_free_chain; | |
2528 | p_free_chain = p_buf->next; | |
2529 | ||
2530 | if (p_last_CCWB==NULL) { | |
2531 | p_buf->next=NULL; | |
2532 | real_TIC_address=0; | |
2533 | p_last_CCWB=p_buf; | |
2534 | } | |
2535 | else { | |
2536 | p_buf->next=p_first_CCWB; | |
2537 | real_TIC_address= | |
2538 | (__u32)__pa(&p_first_CCWB -> read ); | |
2539 | } | |
2540 | ||
2541 | p_first_CCWB=p_buf; | |
2542 | ||
2543 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2544 | /* initialize read command */ | |
2545 | p_buf-> read.cmd_code = CCW_CLAW_CMD_READ; | |
2546 | p_buf-> read.cda = (__u32)__pa(p_buff); | |
2547 | p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2548 | p_buf-> read.count = privptr->p_env->read_size; | |
2549 | ||
2550 | /* initialize read_h command */ | |
2551 | p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER; | |
2552 | p_buf-> read_h.cda = | |
2553 | (__u32)__pa(&(p_buf->header)); | |
2554 | p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2555 | p_buf-> read_h.count = sizeof(struct clawh); | |
2556 | ||
2557 | /* initialize Signal command */ | |
2558 | p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD; | |
2559 | p_buf-> signal.cda = | |
2560 | (__u32)__pa(&(pClawH->flag)); | |
2561 | p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2562 | p_buf-> signal.count = 1; | |
2563 | ||
2564 | /* initialize r_TIC_1 command */ | |
2565 | p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2566 | p_buf-> r_TIC_1.cda = (__u32)real_TIC_address; | |
2567 | p_buf-> r_TIC_1.flags = 0; | |
2568 | p_buf-> r_TIC_1.count = 0; | |
2569 | ||
2570 | /* initialize r_read_FF command */ | |
2571 | p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2572 | p_buf-> r_read_FF.cda = | |
2573 | (__u32)__pa(&(pClawH->flag)); | |
2574 | p_buf-> r_read_FF.flags = | |
2575 | CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI; | |
2576 | p_buf-> r_read_FF.count = 1; | |
2577 | ||
2578 | /* initialize r_TIC_2 */ | |
2579 | memcpy(&p_buf->r_TIC_2, | |
2580 | &p_buf->r_TIC_1, sizeof(struct ccw1)); | |
2581 | ||
2582 | /* initialize Header */ | |
2583 | p_buf->header.length=0xffff; | |
2584 | p_buf->header.opcode=0xff; | |
2585 | p_buf->header.flag=CLAW_PENDING; | |
2586 | ||
2587 | if (((unsigned long)p_buff+privptr->p_env->read_size) >= | |
2588 | ((unsigned long)(p_buff+2*(privptr->p_env->read_size) -1) | |
2589 | & PAGE_MASK) ) { | |
2590 | p_buff= p_buff+privptr->p_env->read_size; | |
2591 | } | |
2592 | else { | |
2593 | p_buff= | |
2594 | (void *)((unsigned long) | |
2595 | (p_buff+2*(privptr->p_env->read_size) -1) | |
2596 | & PAGE_MASK) ; | |
2597 | } | |
2598 | } /* for read_buffers */ | |
2599 | } /* read_size < PAGE_SIZE */ | |
2600 | else { /* read Size >= PAGE_SIZE */ | |
2601 | ||
2602 | #ifdef DEBUGMSG | |
2603 | printk(KERN_INFO "%s: %s() Begin build claw read free chain \n", | |
2604 | dev->name,__FUNCTION__); | |
2605 | #endif | |
2606 | for (i=0 ; i< privptr->p_env->read_buffers ; i++) { | |
2607 | p_buff = (void *)__get_free_pages(__GFP_DMA, | |
2608 | (int)pages_to_order_of_mag(privptr->p_buff_pages_perread) ); | |
2609 | if (p_buff==NULL) { | |
2610 | printk(KERN_INFO "%s: %s() __get_free_pages for read " | |
2611 | "buf failed : get is for %d pages\n", | |
2612 | dev->name,__FUNCTION__, | |
2613 | privptr->p_buff_pages_perread ); | |
2614 | free_pages((unsigned long)privptr->p_buff_ccw, | |
2615 | (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); | |
2616 | /* free the write pages */ | |
2617 | p_buf=privptr->p_buff_write; | |
2618 | while (p_buf!=NULL) { | |
2619 | free_pages((unsigned long)p_buf->p_buffer, | |
2620 | (int)pages_to_order_of_mag( | |
2621 | privptr->p_buff_pages_perwrite )); | |
2622 | p_buf=p_buf->next; | |
2623 | } | |
2624 | /* free any read pages already alloc */ | |
2625 | p_buf=privptr->p_buff_read; | |
2626 | while (p_buf!=NULL) { | |
2627 | free_pages((unsigned long)p_buf->p_buffer, | |
2628 | (int)pages_to_order_of_mag( | |
2629 | privptr->p_buff_pages_perread )); | |
2630 | p_buf=p_buf->next; | |
2631 | } | |
2632 | privptr->p_buff_ccw=NULL; | |
2633 | privptr->p_buff_write=NULL; | |
2634 | #ifdef FUNCTRACE | |
2635 | printk(KERN_INFO "%s: %s() exit on line %d, rc = ENOMEM\n", | |
2636 | dev->name,__FUNCTION__, | |
2637 | __LINE__); | |
2638 | #endif | |
2639 | return -ENOMEM; | |
2640 | } | |
2641 | memset(p_buff, 0x00, privptr->p_env->read_size); | |
2642 | p_buf = p_free_chain; | |
2643 | privptr->p_buff_read = p_buf; | |
2644 | p_free_chain = p_buf->next; | |
2645 | ||
2646 | if (p_last_CCWB==NULL) { | |
2647 | p_buf->next=NULL; | |
2648 | real_TIC_address=0; | |
2649 | p_last_CCWB=p_buf; | |
2650 | } | |
2651 | else { | |
2652 | p_buf->next=p_first_CCWB; | |
2653 | real_TIC_address= | |
2654 | (addr_t)__pa( | |
2655 | &p_first_CCWB -> read ); | |
2656 | } | |
2657 | ||
2658 | p_first_CCWB=p_buf; | |
2659 | /* save buff address */ | |
2660 | p_buf->p_buffer=(struct clawbuf *)p_buff; | |
2661 | /* initialize read command */ | |
2662 | p_buf-> read.cmd_code = CCW_CLAW_CMD_READ; | |
2663 | p_buf-> read.cda = (__u32)__pa(p_buff); | |
2664 | p_buf-> read.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2665 | p_buf-> read.count = privptr->p_env->read_size; | |
2666 | ||
2667 | /* initialize read_h command */ | |
2668 | p_buf-> read_h.cmd_code = CCW_CLAW_CMD_READHEADER; | |
2669 | p_buf-> read_h.cda = | |
2670 | (__u32)__pa(&(p_buf->header)); | |
2671 | p_buf-> read_h.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2672 | p_buf-> read_h.count = sizeof(struct clawh); | |
2673 | ||
2674 | /* initialize Signal command */ | |
2675 | p_buf-> signal.cmd_code = CCW_CLAW_CMD_SIGNAL_SMOD; | |
2676 | p_buf-> signal.cda = | |
2677 | (__u32)__pa(&(pClawH->flag)); | |
2678 | p_buf-> signal.flags = CCW_FLAG_SLI | CCW_FLAG_CC; | |
2679 | p_buf-> signal.count = 1; | |
2680 | ||
2681 | /* initialize r_TIC_1 command */ | |
2682 | p_buf-> r_TIC_1.cmd_code = CCW_CLAW_CMD_TIC; | |
2683 | p_buf-> r_TIC_1.cda = (__u32)real_TIC_address; | |
2684 | p_buf-> r_TIC_1.flags = 0; | |
2685 | p_buf-> r_TIC_1.count = 0; | |
2686 | ||
2687 | /* initialize r_read_FF command */ | |
2688 | p_buf-> r_read_FF.cmd_code = CCW_CLAW_CMD_READFF; | |
2689 | p_buf-> r_read_FF.cda = | |
2690 | (__u32)__pa(&(pClawH->flag)); | |
2691 | p_buf-> r_read_FF.flags = | |
2692 | CCW_FLAG_SLI | CCW_FLAG_CC | CCW_FLAG_PCI; | |
2693 | p_buf-> r_read_FF.count = 1; | |
2694 | ||
2695 | /* initialize r_TIC_2 */ | |
2696 | memcpy(&p_buf->r_TIC_2, &p_buf->r_TIC_1, | |
2697 | sizeof(struct ccw1)); | |
2698 | ||
2699 | /* initialize Header */ | |
2700 | p_buf->header.length=0xffff; | |
2701 | p_buf->header.opcode=0xff; | |
2702 | p_buf->header.flag=CLAW_PENDING; | |
2703 | ||
2704 | } /* For read_buffers */ | |
2705 | } /* read_size >= PAGE_SIZE */ | |
2706 | } /* pBuffread = NULL */ | |
2707 | #ifdef DEBUGMSG | |
2708 | printk(KERN_INFO "%s: %s() > End build claw read free chain \n", | |
2709 | dev->name,__FUNCTION__); | |
2710 | p_buf=p_first_CCWB; | |
2711 | while (p_buf!=NULL) { | |
2712 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
2713 | p_buf=p_buf->next; | |
2714 | } | |
2715 | ||
2716 | #endif | |
2717 | add_claw_reads( dev ,p_first_CCWB , p_last_CCWB); | |
2718 | privptr->buffs_alloc = 1; | |
2719 | #ifdef FUNCTRACE | |
2720 | printk(KERN_INFO "%s: %s() exit on line %d\n", | |
2721 | dev->name,__FUNCTION__,__LINE__); | |
2722 | #endif | |
2723 | return 0; | |
2724 | } /* end of init_ccw_bk */ | |
2725 | ||
2726 | /*-------------------------------------------------------------------* | |
2727 | * * | |
2728 | * probe_error * | |
2729 | * * | |
2730 | *--------------------------------------------------------------------*/ | |
2731 | ||
2732 | static void | |
2733 | probe_error( struct ccwgroup_device *cgdev) | |
2734 | { | |
2735 | struct claw_privbk *privptr; | |
2736 | #ifdef FUNCTRACE | |
2737 | printk(KERN_INFO "%s enter \n",__FUNCTION__); | |
2738 | #endif | |
2739 | CLAW_DBF_TEXT(4,trace,"proberr"); | |
2740 | #ifdef DEBUGMSG | |
2741 | printk(KERN_INFO "%s variable cgdev =\n",__FUNCTION__); | |
2742 | dumpit((char *) cgdev, sizeof(struct ccwgroup_device)); | |
2743 | #endif | |
2744 | privptr=(struct claw_privbk *)cgdev->dev.driver_data; | |
2745 | if (privptr!=NULL) { | |
2746 | if (privptr->p_env != NULL) { | |
2747 | kfree(privptr->p_env); | |
2748 | privptr->p_env=NULL; | |
2749 | } | |
2750 | if (privptr->p_mtc_envelope!=NULL) { | |
2751 | kfree(privptr->p_mtc_envelope); | |
2752 | privptr->p_mtc_envelope=NULL; | |
2753 | } | |
2754 | kfree(privptr); | |
2755 | privptr=NULL; | |
2756 | } | |
2757 | #ifdef FUNCTRACE | |
2758 | printk(KERN_INFO "%s > exit on line %d\n", | |
2759 | __FUNCTION__,__LINE__); | |
2760 | #endif | |
2761 | ||
2762 | return; | |
2763 | } /* probe_error */ | |
2764 | ||
2765 | ||
2766 | ||
2767 | /*-------------------------------------------------------------------* | |
2768 | * claw_process_control * | |
2769 | * * | |
2770 | * * | |
2771 | *--------------------------------------------------------------------*/ | |
2772 | ||
2773 | static int | |
2774 | claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) | |
2775 | { | |
2776 | ||
2777 | struct clawbuf *p_buf; | |
2778 | struct clawctl ctlbk; | |
2779 | struct clawctl *p_ctlbk; | |
2780 | char temp_host_name[8]; | |
2781 | char temp_ws_name[8]; | |
2782 | struct claw_privbk *privptr; | |
2783 | struct claw_env *p_env; | |
2784 | struct sysval *p_sysval; | |
2785 | struct conncmd *p_connect=NULL; | |
2786 | int rc; | |
2787 | struct chbk *p_ch = NULL; | |
2788 | #ifdef FUNCTRACE | |
2789 | printk(KERN_INFO "%s: %s() > enter \n", | |
2790 | dev->name,__FUNCTION__); | |
2791 | #endif | |
2792 | CLAW_DBF_TEXT(2,setup,"clw_cntl"); | |
2793 | #ifdef DEBUGMSG | |
2794 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
2795 | dumpit((char *) dev, sizeof(struct net_device)); | |
2796 | printk(KERN_INFO "%s: variable p_ccw =\n",dev->name); | |
2797 | dumpit((char *) p_ccw, sizeof(struct ccwbk *)); | |
2798 | #endif | |
2799 | udelay(1000); /* Wait a ms for the control packets to | |
2800 | *catch up to each other */ | |
2801 | privptr=dev->priv; | |
2802 | p_env=privptr->p_env; | |
2803 | memcpy( &temp_host_name, p_env->host_name, 8); | |
2804 | memcpy( &temp_ws_name, p_env->adapter_name , 8); | |
2805 | printk(KERN_INFO "%s: CLAW device %.8s: " | |
2806 | "Received Control Packet\n", | |
2807 | dev->name, temp_ws_name); | |
2808 | if (privptr->release_pend==1) { | |
2809 | #ifdef FUNCTRACE | |
2810 | printk(KERN_INFO "%s: %s() > " | |
2811 | "exit on line %d, rc=0\n", | |
2812 | dev->name,__FUNCTION__,__LINE__); | |
2813 | #endif | |
2814 | return 0; | |
2815 | } | |
2816 | p_buf=p_ccw->p_buffer; | |
2817 | p_ctlbk=&ctlbk; | |
2818 | if (p_env->packing == DO_PACKED) { /* packing in progress?*/ | |
2819 | memcpy(p_ctlbk, &p_buf->buffer[4], sizeof(struct clawctl)); | |
2820 | } else { | |
2821 | memcpy(p_ctlbk, p_buf, sizeof(struct clawctl)); | |
2822 | } | |
2823 | #ifdef IOTRACE | |
2824 | printk(KERN_INFO "%s: dump claw control data inbound\n",dev->name); | |
2825 | dumpit((char *)p_ctlbk, sizeof(struct clawctl)); | |
2826 | #endif | |
2827 | switch (p_ctlbk->command) | |
2828 | { | |
2829 | case SYSTEM_VALIDATE_REQUEST: | |
2830 | if (p_ctlbk->version!=CLAW_VERSION_ID) { | |
2831 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2832 | CLAW_RC_WRONG_VERSION ); | |
2833 | printk("%s: %d is wrong version id. " | |
2834 | "Expected %d\n", | |
2835 | dev->name, p_ctlbk->version, | |
2836 | CLAW_VERSION_ID); | |
2837 | } | |
2838 | p_sysval=(struct sysval *)&(p_ctlbk->data); | |
2839 | printk( "%s: Recv Sys Validate Request: " | |
2840 | "Vers=%d,link_id=%d,Corr=%d,WS name=%." | |
2841 | "8s,Host name=%.8s\n", | |
2842 | dev->name, p_ctlbk->version, | |
2843 | p_ctlbk->linkid, | |
2844 | p_ctlbk->correlator, | |
2845 | p_sysval->WS_name, | |
2846 | p_sysval->host_name); | |
2847 | if (0!=memcmp(temp_host_name,p_sysval->host_name,8)) { | |
2848 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2849 | CLAW_RC_NAME_MISMATCH ); | |
2850 | CLAW_DBF_TEXT(2,setup,"HSTBAD"); | |
2851 | CLAW_DBF_TEXT_(2,setup,"%s",p_sysval->host_name); | |
2852 | CLAW_DBF_TEXT_(2,setup,"%s",temp_host_name); | |
2853 | printk(KERN_INFO "%s: Host name mismatch\n", | |
2854 | dev->name); | |
2855 | printk(KERN_INFO "%s: Received :%s: " | |
2856 | "expected :%s: \n", | |
2857 | dev->name, | |
2858 | p_sysval->host_name, | |
2859 | temp_host_name); | |
2860 | } | |
2861 | if (0!=memcmp(temp_ws_name,p_sysval->WS_name,8)) { | |
2862 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2863 | CLAW_RC_NAME_MISMATCH ); | |
2864 | CLAW_DBF_TEXT(2,setup,"WSNBAD"); | |
2865 | CLAW_DBF_TEXT_(2,setup,"%s",p_sysval->WS_name); | |
2866 | CLAW_DBF_TEXT_(2,setup,"%s",temp_ws_name); | |
2867 | printk(KERN_INFO "%s: WS name mismatch\n", | |
2868 | dev->name); | |
2869 | printk(KERN_INFO "%s: Received :%s: " | |
2870 | "expected :%s: \n", | |
2871 | dev->name, | |
2872 | p_sysval->WS_name, | |
2873 | temp_ws_name); | |
2874 | } | |
2875 | if (( p_sysval->write_frame_size < p_env->write_size) && | |
2876 | ( p_env->packing == 0)) { | |
2877 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2878 | CLAW_RC_HOST_RCV_TOO_SMALL ); | |
2879 | printk(KERN_INFO "%s: host write size is too " | |
2880 | "small\n", dev->name); | |
2881 | CLAW_DBF_TEXT(2,setup,"wrtszbad"); | |
2882 | } | |
2883 | if (( p_sysval->read_frame_size < p_env->read_size) && | |
2884 | ( p_env->packing == 0)) { | |
2885 | claw_snd_sys_validate_rsp(dev, p_ctlbk, | |
2886 | CLAW_RC_HOST_RCV_TOO_SMALL ); | |
2887 | printk(KERN_INFO "%s: host read size is too " | |
2888 | "small\n", dev->name); | |
2889 | CLAW_DBF_TEXT(2,setup,"rdsizbad"); | |
2890 | } | |
2891 | claw_snd_sys_validate_rsp(dev, p_ctlbk, 0 ); | |
2892 | printk("%s: CLAW device %.8s: System validate" | |
2893 | " completed.\n",dev->name, temp_ws_name); | |
2894 | printk("%s: sys Validate Rsize:%d Wsize:%d\n",dev->name, | |
2895 | p_sysval->read_frame_size,p_sysval->write_frame_size); | |
2896 | privptr->system_validate_comp=1; | |
2897 | if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
2898 | p_env->packing = PACKING_ASK; | |
2899 | } | |
2900 | claw_strt_conn_req(dev); | |
2901 | break; | |
2902 | ||
2903 | case SYSTEM_VALIDATE_RESPONSE: | |
2904 | p_sysval=(struct sysval *)&(p_ctlbk->data); | |
2905 | printk("%s: Recv Sys Validate Resp: Vers=%d,Corr=%d,RC=%d," | |
2906 | "WS name=%.8s,Host name=%.8s\n", | |
2907 | dev->name, | |
2908 | p_ctlbk->version, | |
2909 | p_ctlbk->correlator, | |
2910 | p_ctlbk->rc, | |
2911 | p_sysval->WS_name, | |
2912 | p_sysval->host_name); | |
2913 | switch (p_ctlbk->rc) | |
2914 | { | |
2915 | case 0: | |
2916 | printk(KERN_INFO "%s: CLAW device " | |
2917 | "%.8s: System validate " | |
2918 | "completed.\n", | |
2919 | dev->name, temp_ws_name); | |
2920 | if (privptr->system_validate_comp == 0) | |
2921 | claw_strt_conn_req(dev); | |
2922 | privptr->system_validate_comp=1; | |
2923 | break; | |
2924 | case CLAW_RC_NAME_MISMATCH: | |
2925 | printk(KERN_INFO "%s: Sys Validate " | |
2926 | "Resp : Host, WS name is " | |
2927 | "mismatch\n", | |
2928 | dev->name); | |
2929 | break; | |
2930 | case CLAW_RC_WRONG_VERSION: | |
2931 | printk(KERN_INFO "%s: Sys Validate " | |
2932 | "Resp : Wrong version\n", | |
2933 | dev->name); | |
2934 | break; | |
2935 | case CLAW_RC_HOST_RCV_TOO_SMALL: | |
2936 | printk(KERN_INFO "%s: Sys Validate " | |
2937 | "Resp : bad frame size\n", | |
2938 | dev->name); | |
2939 | break; | |
2940 | default: | |
2941 | printk(KERN_INFO "%s: Sys Validate " | |
2942 | "error code=%d \n", | |
2943 | dev->name, p_ctlbk->rc ); | |
2944 | break; | |
2945 | } | |
2946 | break; | |
2947 | ||
2948 | case CONNECTION_REQUEST: | |
2949 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
2950 | printk(KERN_INFO "%s: Recv Conn Req: Vers=%d,link_id=%d," | |
2951 | "Corr=%d,HOST appl=%.8s,WS appl=%.8s\n", | |
2952 | dev->name, | |
2953 | p_ctlbk->version, | |
2954 | p_ctlbk->linkid, | |
2955 | p_ctlbk->correlator, | |
2956 | p_connect->host_name, | |
2957 | p_connect->WS_name); | |
2958 | if (privptr->active_link_ID!=0 ) { | |
2959 | claw_snd_disc(dev, p_ctlbk); | |
2960 | printk(KERN_INFO "%s: Conn Req error : " | |
2961 | "already logical link is active \n", | |
2962 | dev->name); | |
2963 | } | |
2964 | if (p_ctlbk->linkid!=1 ) { | |
2965 | claw_snd_disc(dev, p_ctlbk); | |
2966 | printk(KERN_INFO "%s: Conn Req error : " | |
2967 | "req logical link id is not 1\n", | |
2968 | dev->name); | |
2969 | } | |
2970 | rc=find_link(dev, | |
2971 | p_connect->host_name, p_connect->WS_name); | |
2972 | if (rc!=0) { | |
2973 | claw_snd_disc(dev, p_ctlbk); | |
2974 | printk(KERN_INFO "%s: Conn Req error : " | |
2975 | "req appl name does not match\n", | |
2976 | dev->name); | |
2977 | } | |
2978 | claw_send_control(dev, | |
2979 | CONNECTION_CONFIRM, p_ctlbk->linkid, | |
2980 | p_ctlbk->correlator, | |
2981 | 0, p_connect->host_name, | |
2982 | p_connect->WS_name); | |
2983 | if (p_env->packing == PACKING_ASK) { | |
2984 | printk("%s: Now Pack ask\n",dev->name); | |
2985 | p_env->packing = PACK_SEND; | |
2986 | claw_snd_conn_req(dev,0); | |
2987 | } | |
2988 | printk(KERN_INFO "%s: CLAW device %.8s: Connection " | |
2989 | "completed link_id=%d.\n", | |
2990 | dev->name, temp_ws_name, | |
2991 | p_ctlbk->linkid); | |
2992 | privptr->active_link_ID=p_ctlbk->linkid; | |
2993 | p_ch=&privptr->channel[WRITE]; | |
2994 | wake_up(&p_ch->wait); /* wake up claw_open ( WRITE) */ | |
2995 | break; | |
2996 | case CONNECTION_RESPONSE: | |
2997 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
2998 | printk(KERN_INFO "%s: Revc Conn Resp: Vers=%d,link_id=%d," | |
2999 | "Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n", | |
3000 | dev->name, | |
3001 | p_ctlbk->version, | |
3002 | p_ctlbk->linkid, | |
3003 | p_ctlbk->correlator, | |
3004 | p_ctlbk->rc, | |
3005 | p_connect->host_name, | |
3006 | p_connect->WS_name); | |
3007 | ||
3008 | if (p_ctlbk->rc !=0 ) { | |
3009 | printk(KERN_INFO "%s: Conn Resp error: rc=%d \n", | |
3010 | dev->name, p_ctlbk->rc); | |
3011 | return 1; | |
3012 | } | |
3013 | rc=find_link(dev, | |
3014 | p_connect->host_name, p_connect->WS_name); | |
3015 | if (rc!=0) { | |
3016 | claw_snd_disc(dev, p_ctlbk); | |
3017 | printk(KERN_INFO "%s: Conn Resp error: " | |
3018 | "req appl name does not match\n", | |
3019 | dev->name); | |
3020 | } | |
3021 | /* should be until CONNECTION_CONFIRM */ | |
3022 | privptr->active_link_ID = - (p_ctlbk->linkid); | |
3023 | break; | |
3024 | case CONNECTION_CONFIRM: | |
3025 | p_connect=(struct conncmd *)&(p_ctlbk->data); | |
3026 | printk(KERN_INFO "%s: Recv Conn Confirm:Vers=%d,link_id=%d," | |
3027 | "Corr=%d,Host appl=%.8s,WS appl=%.8s\n", | |
3028 | dev->name, | |
3029 | p_ctlbk->version, | |
3030 | p_ctlbk->linkid, | |
3031 | p_ctlbk->correlator, | |
3032 | p_connect->host_name, | |
3033 | p_connect->WS_name); | |
3034 | if (p_ctlbk->linkid== -(privptr->active_link_ID)) { | |
3035 | privptr->active_link_ID=p_ctlbk->linkid; | |
3036 | if (p_env->packing > PACKING_ASK) { | |
3037 | printk(KERN_INFO "%s: Confirmed Now packing\n",dev->name); | |
3038 | p_env->packing = DO_PACKED; | |
3039 | } | |
3040 | p_ch=&privptr->channel[WRITE]; | |
3041 | wake_up(&p_ch->wait); | |
3042 | } | |
3043 | else { | |
3044 | printk(KERN_INFO "%s: Conn confirm: " | |
3045 | "unexpected linkid=%d \n", | |
3046 | dev->name, p_ctlbk->linkid); | |
3047 | claw_snd_disc(dev, p_ctlbk); | |
3048 | } | |
3049 | break; | |
3050 | case DISCONNECT: | |
3051 | printk(KERN_INFO "%s: Disconnect: " | |
3052 | "Vers=%d,link_id=%d,Corr=%d\n", | |
3053 | dev->name, p_ctlbk->version, | |
3054 | p_ctlbk->linkid, p_ctlbk->correlator); | |
3055 | if ((p_ctlbk->linkid == 2) && | |
3056 | (p_env->packing == PACK_SEND)) { | |
3057 | privptr->active_link_ID = 1; | |
3058 | p_env->packing = DO_PACKED; | |
3059 | } | |
3060 | else | |
3061 | privptr->active_link_ID=0; | |
3062 | break; | |
3063 | case CLAW_ERROR: | |
3064 | printk(KERN_INFO "%s: CLAW ERROR detected\n", | |
3065 | dev->name); | |
3066 | break; | |
3067 | default: | |
3068 | printk(KERN_INFO "%s: Unexpected command code=%d \n", | |
3069 | dev->name, p_ctlbk->command); | |
3070 | break; | |
3071 | } | |
3072 | ||
3073 | #ifdef FUNCTRACE | |
3074 | printk(KERN_INFO "%s: %s() exit on line %d, rc = 0\n", | |
3075 | dev->name,__FUNCTION__,__LINE__); | |
3076 | #endif | |
3077 | ||
3078 | return 0; | |
3079 | } /* end of claw_process_control */ | |
3080 | ||
3081 | ||
3082 | /*-------------------------------------------------------------------* | |
3083 | * claw_send_control * | |
3084 | * * | |
3085 | *--------------------------------------------------------------------*/ | |
3086 | ||
3087 | static int | |
3088 | claw_send_control(struct net_device *dev, __u8 type, __u8 link, | |
3089 | __u8 correlator, __u8 rc, char *local_name, char *remote_name) | |
3090 | { | |
3091 | struct claw_privbk *privptr; | |
3092 | struct clawctl *p_ctl; | |
3093 | struct sysval *p_sysval; | |
3094 | struct conncmd *p_connect; | |
3095 | struct sk_buff *skb; | |
3096 | ||
3097 | #ifdef FUNCTRACE | |
3098 | printk(KERN_INFO "%s:%s > enter \n",dev->name,__FUNCTION__); | |
3099 | #endif | |
3100 | CLAW_DBF_TEXT(2,setup,"sndcntl"); | |
3101 | #ifdef DEBUGMSG | |
3102 | printk(KERN_INFO "%s: Sending Control Packet \n",dev->name); | |
3103 | printk(KERN_INFO "%s: variable type = 0x%X, link = " | |
3104 | "%d, correlator = %d, rc = %d\n", | |
3105 | dev->name,type, link, correlator, rc); | |
3106 | printk(KERN_INFO "%s: variable local_name = %s, " | |
3107 | "remote_name = %s\n",dev->name, local_name, remote_name); | |
3108 | #endif | |
3109 | privptr=dev->priv; | |
3110 | p_ctl=(struct clawctl *)&privptr->ctl_bk; | |
3111 | ||
3112 | p_ctl->command=type; | |
3113 | p_ctl->version=CLAW_VERSION_ID; | |
3114 | p_ctl->linkid=link; | |
3115 | p_ctl->correlator=correlator; | |
3116 | p_ctl->rc=rc; | |
3117 | ||
3118 | p_sysval=(struct sysval *)&p_ctl->data; | |
3119 | p_connect=(struct conncmd *)&p_ctl->data; | |
3120 | ||
3121 | switch (p_ctl->command) { | |
3122 | case SYSTEM_VALIDATE_REQUEST: | |
3123 | case SYSTEM_VALIDATE_RESPONSE: | |
3124 | memcpy(&p_sysval->host_name, local_name, 8); | |
3125 | memcpy(&p_sysval->WS_name, remote_name, 8); | |
3126 | if (privptr->p_env->packing > 0) { | |
3127 | p_sysval->read_frame_size=DEF_PACK_BUFSIZE; | |
3128 | p_sysval->write_frame_size=DEF_PACK_BUFSIZE; | |
3129 | } else { | |
3130 | /* how big is the piggest group of packets */ | |
3131 | p_sysval->read_frame_size=privptr->p_env->read_size; | |
3132 | p_sysval->write_frame_size=privptr->p_env->write_size; | |
3133 | } | |
3134 | memset(&p_sysval->reserved, 0x00, 4); | |
3135 | break; | |
3136 | case CONNECTION_REQUEST: | |
3137 | case CONNECTION_RESPONSE: | |
3138 | case CONNECTION_CONFIRM: | |
3139 | case DISCONNECT: | |
3140 | memcpy(&p_sysval->host_name, local_name, 8); | |
3141 | memcpy(&p_sysval->WS_name, remote_name, 8); | |
3142 | if (privptr->p_env->packing > 0) { | |
3143 | /* How big is the biggest packet */ | |
3144 | p_connect->reserved1[0]=CLAW_FRAME_SIZE; | |
3145 | p_connect->reserved1[1]=CLAW_FRAME_SIZE; | |
3146 | } else { | |
3147 | memset(&p_connect->reserved1, 0x00, 4); | |
3148 | memset(&p_connect->reserved2, 0x00, 4); | |
3149 | } | |
3150 | break; | |
3151 | default: | |
3152 | break; | |
3153 | } | |
3154 | ||
3155 | /* write Control Record to the device */ | |
3156 | ||
3157 | ||
3158 | skb = dev_alloc_skb(sizeof(struct clawctl)); | |
3159 | if (!skb) { | |
3160 | printk( "%s:%s low on mem, returning...\n", | |
3161 | dev->name,__FUNCTION__); | |
3162 | #ifdef DEBUG | |
3163 | printk(KERN_INFO "%s:%s Exit, rc = ENOMEM\n", | |
3164 | dev->name,__FUNCTION__); | |
3165 | #endif | |
3166 | return -ENOMEM; | |
3167 | } | |
3168 | memcpy(skb_put(skb, sizeof(struct clawctl)), | |
3169 | p_ctl, sizeof(struct clawctl)); | |
3170 | #ifdef IOTRACE | |
3171 | printk(KERN_INFO "%s: outbnd claw cntl data \n",dev->name); | |
3172 | dumpit((char *)p_ctl,sizeof(struct clawctl)); | |
3173 | #endif | |
3174 | if (privptr->p_env->packing >= PACK_SEND) | |
3175 | claw_hw_tx(skb, dev, 1); | |
3176 | else | |
3177 | claw_hw_tx(skb, dev, 0); | |
3178 | #ifdef FUNCTRACE | |
3179 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3180 | dev->name,__FUNCTION__,__LINE__); | |
3181 | #endif | |
3182 | ||
3183 | return 0; | |
3184 | } /* end of claw_send_control */ | |
3185 | ||
3186 | /*-------------------------------------------------------------------* | |
3187 | * claw_snd_conn_req * | |
3188 | * * | |
3189 | *--------------------------------------------------------------------*/ | |
3190 | static int | |
3191 | claw_snd_conn_req(struct net_device *dev, __u8 link) | |
3192 | { | |
3193 | int rc; | |
3194 | struct claw_privbk *privptr=dev->priv; | |
3195 | struct clawctl *p_ctl; | |
3196 | ||
3197 | #ifdef FUNCTRACE | |
3198 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
3199 | #endif | |
3200 | CLAW_DBF_TEXT(2,setup,"snd_conn"); | |
3201 | #ifdef DEBUGMSG | |
3202 | printk(KERN_INFO "%s: variable link = %X, dev =\n",dev->name, link); | |
3203 | dumpit((char *) dev, sizeof(struct net_device)); | |
3204 | #endif | |
3205 | rc = 1; | |
3206 | p_ctl=(struct clawctl *)&privptr->ctl_bk; | |
3207 | p_ctl->linkid = link; | |
3208 | if ( privptr->system_validate_comp==0x00 ) { | |
3209 | #ifdef FUNCTRACE | |
3210 | printk(KERN_INFO "%s:%s Exit on line %d, rc = 1\n", | |
3211 | dev->name,__FUNCTION__,__LINE__); | |
3212 | #endif | |
3213 | return rc; | |
3214 | } | |
3215 | if (privptr->p_env->packing == PACKING_ASK ) | |
3216 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3217 | WS_APPL_NAME_PACKED, WS_APPL_NAME_PACKED); | |
3218 | if (privptr->p_env->packing == PACK_SEND) { | |
3219 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3220 | WS_APPL_NAME_IP_NAME, WS_APPL_NAME_IP_NAME); | |
3221 | } | |
3222 | if (privptr->p_env->packing == 0) | |
3223 | rc=claw_send_control(dev, CONNECTION_REQUEST,0,0,0, | |
3224 | HOST_APPL_NAME, privptr->p_env->api_type); | |
3225 | #ifdef FUNCTRACE | |
3226 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3227 | dev->name,__FUNCTION__,__LINE__, rc); | |
3228 | #endif | |
3229 | return rc; | |
3230 | ||
3231 | } /* end of claw_snd_conn_req */ | |
3232 | ||
3233 | ||
3234 | /*-------------------------------------------------------------------* | |
3235 | * claw_snd_disc * | |
3236 | * * | |
3237 | *--------------------------------------------------------------------*/ | |
3238 | ||
3239 | static int | |
3240 | claw_snd_disc(struct net_device *dev, struct clawctl * p_ctl) | |
3241 | { | |
3242 | int rc; | |
3243 | struct conncmd * p_connect; | |
3244 | ||
3245 | #ifdef FUNCTRACE | |
3246 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3247 | #endif | |
3248 | CLAW_DBF_TEXT(2,setup,"snd_dsc"); | |
3249 | #ifdef DEBUGMSG | |
3250 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
3251 | dumpit((char *) dev, sizeof(struct net_device)); | |
3252 | printk(KERN_INFO "%s: variable p_ctl",dev->name); | |
3253 | dumpit((char *) p_ctl, sizeof(struct clawctl)); | |
3254 | #endif | |
3255 | p_connect=(struct conncmd *)&p_ctl->data; | |
3256 | ||
3257 | rc=claw_send_control(dev, DISCONNECT, p_ctl->linkid, | |
3258 | p_ctl->correlator, 0, | |
3259 | p_connect->host_name, p_connect->WS_name); | |
3260 | #ifdef FUNCTRACE | |
3261 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3262 | dev->name,__FUNCTION__, __LINE__, rc); | |
3263 | #endif | |
3264 | return rc; | |
3265 | } /* end of claw_snd_disc */ | |
3266 | ||
3267 | ||
3268 | /*-------------------------------------------------------------------* | |
3269 | * claw_snd_sys_validate_rsp * | |
3270 | * * | |
3271 | *--------------------------------------------------------------------*/ | |
3272 | ||
3273 | static int | |
3274 | claw_snd_sys_validate_rsp(struct net_device *dev, | |
3275 | struct clawctl *p_ctl, __u32 return_code) | |
3276 | { | |
3277 | struct claw_env * p_env; | |
3278 | struct claw_privbk *privptr; | |
3279 | int rc; | |
3280 | ||
3281 | #ifdef FUNCTRACE | |
3282 | printk(KERN_INFO "%s:%s Enter\n", | |
3283 | dev->name,__FUNCTION__); | |
3284 | #endif | |
3285 | CLAW_DBF_TEXT(2,setup,"chkresp"); | |
3286 | #ifdef DEBUGMSG | |
3287 | printk(KERN_INFO "%s: variable return_code = %d, dev =\n", | |
3288 | dev->name, return_code); | |
3289 | dumpit((char *) dev, sizeof(struct net_device)); | |
3290 | printk(KERN_INFO "%s: variable p_ctl =\n",dev->name); | |
3291 | dumpit((char *) p_ctl, sizeof(struct clawctl)); | |
3292 | #endif | |
3293 | privptr = dev->priv; | |
3294 | p_env=privptr->p_env; | |
3295 | rc=claw_send_control(dev, SYSTEM_VALIDATE_RESPONSE, | |
3296 | p_ctl->linkid, | |
3297 | p_ctl->correlator, | |
3298 | return_code, | |
3299 | p_env->host_name, | |
3300 | p_env->adapter_name ); | |
3301 | #ifdef FUNCTRACE | |
3302 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3303 | dev->name,__FUNCTION__,__LINE__, rc); | |
3304 | #endif | |
3305 | return rc; | |
3306 | } /* end of claw_snd_sys_validate_rsp */ | |
3307 | ||
3308 | /*-------------------------------------------------------------------* | |
3309 | * claw_strt_conn_req * | |
3310 | * * | |
3311 | *--------------------------------------------------------------------*/ | |
3312 | ||
3313 | static int | |
3314 | claw_strt_conn_req(struct net_device *dev ) | |
3315 | { | |
3316 | int rc; | |
3317 | ||
3318 | #ifdef FUNCTRACE | |
3319 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3320 | #endif | |
3321 | CLAW_DBF_TEXT(2,setup,"conn_req"); | |
3322 | #ifdef DEBUGMSG | |
3323 | printk(KERN_INFO "%s: variable dev =\n",dev->name); | |
3324 | dumpit((char *) dev, sizeof(struct net_device)); | |
3325 | #endif | |
3326 | rc=claw_snd_conn_req(dev, 1); | |
3327 | #ifdef FUNCTRACE | |
3328 | printk(KERN_INFO "%s:%s Exit on line %d, rc = %d\n", | |
3329 | dev->name,__FUNCTION__,__LINE__, rc); | |
3330 | #endif | |
3331 | return rc; | |
3332 | } /* end of claw_strt_conn_req */ | |
3333 | ||
3334 | ||
3335 | ||
3336 | /*-------------------------------------------------------------------* | |
3337 | * claw_stats * | |
3338 | *-------------------------------------------------------------------*/ | |
3339 | ||
3340 | static struct | |
3341 | net_device_stats *claw_stats(struct net_device *dev) | |
3342 | { | |
3343 | struct claw_privbk *privptr; | |
3344 | #ifdef FUNCTRACE | |
3345 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3346 | #endif | |
3347 | CLAW_DBF_TEXT(4,trace,"stats"); | |
3348 | privptr = dev->priv; | |
3349 | #ifdef FUNCTRACE | |
3350 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3351 | dev->name,__FUNCTION__,__LINE__); | |
3352 | #endif | |
3353 | return &privptr->stats; | |
3354 | } /* end of claw_stats */ | |
3355 | ||
3356 | ||
3357 | /*-------------------------------------------------------------------* | |
3358 | * unpack_read * | |
3359 | * * | |
3360 | *--------------------------------------------------------------------*/ | |
3361 | static void | |
3362 | unpack_read(struct net_device *dev ) | |
3363 | { | |
3364 | struct sk_buff *skb; | |
3365 | struct claw_privbk *privptr; | |
3366 | struct claw_env *p_env; | |
3367 | struct ccwbk *p_this_ccw; | |
3368 | struct ccwbk *p_first_ccw; | |
3369 | struct ccwbk *p_last_ccw; | |
3370 | struct clawph *p_packh; | |
3371 | void *p_packd; | |
3372 | struct clawctl *p_ctlrec=NULL; | |
3373 | ||
3374 | __u32 len_of_data; | |
3375 | __u32 pack_off; | |
3376 | __u8 link_num; | |
3377 | __u8 mtc_this_frm=0; | |
3378 | __u32 bytes_to_mov; | |
3379 | struct chbk *p_ch = NULL; | |
3380 | int i=0; | |
3381 | int p=0; | |
3382 | ||
3383 | #ifdef FUNCTRACE | |
3384 | printk(KERN_INFO "%s:%s enter \n",dev->name,__FUNCTION__); | |
3385 | #endif | |
3386 | CLAW_DBF_TEXT(4,trace,"unpkread"); | |
3387 | p_first_ccw=NULL; | |
3388 | p_last_ccw=NULL; | |
3389 | p_packh=NULL; | |
3390 | p_packd=NULL; | |
3391 | privptr=dev->priv; | |
3392 | p_env = privptr->p_env; | |
3393 | p_this_ccw=privptr->p_read_active_first; | |
3394 | i=0; | |
3395 | while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) { | |
3396 | #ifdef IOTRACE | |
3397 | printk(KERN_INFO "%s p_this_ccw \n",dev->name); | |
3398 | dumpit((char*)p_this_ccw, sizeof(struct ccwbk)); | |
3399 | printk(KERN_INFO "%s Inbound p_this_ccw->p_buffer(64)" | |
3400 | " pk=%d \n",dev->name,p_env->packing); | |
3401 | dumpit((char *)p_this_ccw->p_buffer, 64 ); | |
3402 | #endif | |
3403 | pack_off = 0; | |
3404 | p = 0; | |
3405 | p_this_ccw->header.flag=CLAW_PENDING; | |
3406 | privptr->p_read_active_first=p_this_ccw->next; | |
3407 | p_this_ccw->next=NULL; | |
3408 | p_packh = (struct clawph *)p_this_ccw->p_buffer; | |
3409 | if ((p_env->packing == PACK_SEND) && | |
3410 | (p_packh->len == 32) && | |
3411 | (p_packh->link_num == 0)) { /* is it a packed ctl rec? */ | |
3412 | p_packh++; /* peek past pack header */ | |
3413 | p_ctlrec = (struct clawctl *)p_packh; | |
3414 | p_packh--; /* un peek */ | |
3415 | if ((p_ctlrec->command == CONNECTION_RESPONSE) || | |
3416 | (p_ctlrec->command == CONNECTION_CONFIRM)) | |
3417 | p_env->packing = DO_PACKED; | |
3418 | } | |
3419 | if (p_env->packing == DO_PACKED) | |
3420 | link_num=p_packh->link_num; | |
3421 | else | |
3422 | link_num=p_this_ccw->header.opcode / 8; | |
3423 | if ((p_this_ccw->header.opcode & MORE_to_COME_FLAG)!=0) { | |
3424 | #ifdef DEBUGMSG | |
3425 | printk(KERN_INFO "%s: %s > More_to_come is ON\n", | |
3426 | dev->name,__FUNCTION__); | |
3427 | #endif | |
3428 | mtc_this_frm=1; | |
3429 | if (p_this_ccw->header.length!= | |
3430 | privptr->p_env->read_size ) { | |
3431 | printk(KERN_INFO " %s: Invalid frame detected " | |
3432 | "length is %02x\n" , | |
3433 | dev->name, p_this_ccw->header.length); | |
3434 | } | |
3435 | } | |
3436 | ||
3437 | if (privptr->mtc_skipping) { | |
3438 | /* | |
3439 | * We're in the mode of skipping past a | |
3440 | * multi-frame message | |
3441 | * that we can't process for some reason or other. | |
3442 | * The first frame without the More-To-Come flag is | |
3443 | * the last frame of the skipped message. | |
3444 | */ | |
3445 | /* in case of More-To-Come not set in this frame */ | |
3446 | if (mtc_this_frm==0) { | |
3447 | privptr->mtc_skipping=0; /* Ok, the end */ | |
3448 | privptr->mtc_logical_link=-1; | |
3449 | } | |
3450 | #ifdef DEBUGMSG | |
3451 | printk(KERN_INFO "%s:%s goto next " | |
3452 | "frame from MoretoComeSkip \n", | |
3453 | dev->name,__FUNCTION__); | |
3454 | #endif | |
3455 | goto NextFrame; | |
3456 | } | |
3457 | ||
3458 | if (link_num==0) { | |
3459 | claw_process_control(dev, p_this_ccw); | |
3460 | #ifdef DEBUGMSG | |
3461 | printk(KERN_INFO "%s:%s goto next " | |
3462 | "frame from claw_process_control \n", | |
3463 | dev->name,__FUNCTION__); | |
3464 | #endif | |
3465 | CLAW_DBF_TEXT(4,trace,"UnpkCntl"); | |
3466 | goto NextFrame; | |
3467 | } | |
3468 | unpack_next: | |
3469 | if (p_env->packing == DO_PACKED) { | |
3470 | if (pack_off > p_env->read_size) | |
3471 | goto NextFrame; | |
3472 | p_packd = p_this_ccw->p_buffer+pack_off; | |
3473 | p_packh = (struct clawph *) p_packd; | |
3474 | if ((p_packh->len == 0) || /* all done with this frame? */ | |
3475 | (p_packh->flag != 0)) | |
3476 | goto NextFrame; | |
3477 | bytes_to_mov = p_packh->len; | |
3478 | pack_off += bytes_to_mov+sizeof(struct clawph); | |
3479 | p++; | |
3480 | } else { | |
3481 | bytes_to_mov=p_this_ccw->header.length; | |
3482 | } | |
3483 | if (privptr->mtc_logical_link<0) { | |
3484 | #ifdef DEBUGMSG | |
3485 | printk(KERN_INFO "%s: %s mtc_logical_link < 0 \n", | |
3486 | dev->name,__FUNCTION__); | |
3487 | #endif | |
3488 | ||
3489 | /* | |
3490 | * if More-To-Come is set in this frame then we don't know | |
3491 | * length of entire message, and hence have to allocate | |
3492 | * large buffer */ | |
3493 | ||
3494 | /* We are starting a new envelope */ | |
3495 | privptr->mtc_offset=0; | |
3496 | privptr->mtc_logical_link=link_num; | |
3497 | } | |
3498 | ||
3499 | if (bytes_to_mov > (MAX_ENVELOPE_SIZE- privptr->mtc_offset) ) { | |
3500 | /* error */ | |
3501 | #ifdef DEBUGMSG | |
3502 | printk(KERN_INFO "%s: %s > goto next " | |
3503 | "frame from MoretoComeSkip \n", | |
3504 | dev->name, | |
3505 | __FUNCTION__); | |
3506 | printk(KERN_INFO " bytes_to_mov %d > (MAX_ENVELOPE_" | |
3507 | "SIZE-privptr->mtc_offset %d)\n", | |
3508 | bytes_to_mov,(MAX_ENVELOPE_SIZE- privptr->mtc_offset)); | |
3509 | #endif | |
3510 | privptr->stats.rx_frame_errors++; | |
3511 | goto NextFrame; | |
3512 | } | |
3513 | if (p_env->packing == DO_PACKED) { | |
3514 | memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset, | |
3515 | p_packd+sizeof(struct clawph), bytes_to_mov); | |
3516 | ||
3517 | } else { | |
3518 | memcpy( privptr->p_mtc_envelope+ privptr->mtc_offset, | |
3519 | p_this_ccw->p_buffer, bytes_to_mov); | |
3520 | } | |
3521 | #ifdef DEBUGMSG | |
3522 | printk(KERN_INFO "%s: %s() received data \n", | |
3523 | dev->name,__FUNCTION__); | |
3524 | if (p_env->packing == DO_PACKED) | |
3525 | dumpit((char *)p_packd+sizeof(struct clawph),32); | |
3526 | else | |
3527 | dumpit((char *)p_this_ccw->p_buffer, 32); | |
3528 | printk(KERN_INFO "%s: %s() bytelength %d \n", | |
3529 | dev->name,__FUNCTION__,bytes_to_mov); | |
3530 | #endif | |
3531 | if (mtc_this_frm==0) { | |
3532 | len_of_data=privptr->mtc_offset+bytes_to_mov; | |
3533 | skb=dev_alloc_skb(len_of_data); | |
3534 | if (skb) { | |
3535 | memcpy(skb_put(skb,len_of_data), | |
3536 | privptr->p_mtc_envelope, | |
3537 | len_of_data); | |
3538 | skb->mac.raw=skb->data; | |
3539 | skb->dev=dev; | |
3540 | skb->protocol=htons(ETH_P_IP); | |
3541 | skb->ip_summed=CHECKSUM_UNNECESSARY; | |
3542 | privptr->stats.rx_packets++; | |
3543 | privptr->stats.rx_bytes+=len_of_data; | |
3544 | netif_rx(skb); | |
3545 | #ifdef DEBUGMSG | |
3546 | printk(KERN_INFO "%s: %s() netif_" | |
3547 | "rx(skb) completed \n", | |
3548 | dev->name,__FUNCTION__); | |
3549 | #endif | |
3550 | } | |
3551 | else { | |
3552 | privptr->stats.rx_dropped++; | |
3553 | printk(KERN_WARNING "%s: %s() low on memory\n", | |
3554 | dev->name,__FUNCTION__); | |
3555 | } | |
3556 | privptr->mtc_offset=0; | |
3557 | privptr->mtc_logical_link=-1; | |
3558 | } | |
3559 | else { | |
3560 | privptr->mtc_offset+=bytes_to_mov; | |
3561 | } | |
3562 | if (p_env->packing == DO_PACKED) | |
3563 | goto unpack_next; | |
3564 | NextFrame: | |
3565 | /* | |
3566 | * Remove ThisCCWblock from active read queue, and add it | |
3567 | * to queue of free blocks to be reused. | |
3568 | */ | |
3569 | i++; | |
3570 | p_this_ccw->header.length=0xffff; | |
3571 | p_this_ccw->header.opcode=0xff; | |
3572 | /* | |
3573 | * add this one to the free queue for later reuse | |
3574 | */ | |
3575 | if (p_first_ccw==NULL) { | |
3576 | p_first_ccw = p_this_ccw; | |
3577 | } | |
3578 | else { | |
3579 | p_last_ccw->next = p_this_ccw; | |
3580 | } | |
3581 | p_last_ccw = p_this_ccw; | |
3582 | /* | |
3583 | * chain to next block on active read queue | |
3584 | */ | |
3585 | p_this_ccw = privptr->p_read_active_first; | |
3586 | CLAW_DBF_TEXT_(4,trace,"rxpkt %d",p); | |
3587 | } /* end of while */ | |
3588 | ||
3589 | /* check validity */ | |
3590 | ||
3591 | #ifdef IOTRACE | |
3592 | printk(KERN_INFO "%s:%s processed frame is %d \n", | |
3593 | dev->name,__FUNCTION__,i); | |
3594 | printk(KERN_INFO "%s:%s F:%lx L:%lx\n", | |
3595 | dev->name, | |
3596 | __FUNCTION__, | |
3597 | (unsigned long)p_first_ccw, | |
3598 | (unsigned long)p_last_ccw); | |
3599 | #endif | |
3600 | CLAW_DBF_TEXT_(4,trace,"rxfrm %d",i); | |
3601 | add_claw_reads(dev, p_first_ccw, p_last_ccw); | |
3602 | p_ch=&privptr->channel[READ]; | |
3603 | claw_strt_read(dev, LOCK_YES); | |
3604 | #ifdef FUNCTRACE | |
3605 | printk(KERN_INFO "%s: %s exit on line %d\n", | |
3606 | dev->name, __FUNCTION__, __LINE__); | |
3607 | #endif | |
3608 | return; | |
3609 | } /* end of unpack_read */ | |
3610 | ||
3611 | /*-------------------------------------------------------------------* | |
3612 | * claw_strt_read * | |
3613 | * * | |
3614 | *--------------------------------------------------------------------*/ | |
3615 | static void | |
3616 | claw_strt_read (struct net_device *dev, int lock ) | |
3617 | { | |
3618 | int rc = 0; | |
3619 | __u32 parm; | |
3620 | unsigned long saveflags = 0; | |
3621 | struct claw_privbk *privptr=dev->priv; | |
3622 | struct ccwbk*p_ccwbk; | |
3623 | struct chbk *p_ch; | |
3624 | struct clawh *p_clawh; | |
3625 | p_ch=&privptr->channel[READ]; | |
3626 | ||
3627 | #ifdef FUNCTRACE | |
3628 | printk(KERN_INFO "%s:%s Enter \n",dev->name,__FUNCTION__); | |
3629 | printk(KERN_INFO "%s: variable lock = %d, dev =\n",dev->name, lock); | |
3630 | dumpit((char *) dev, sizeof(struct net_device)); | |
3631 | #endif | |
3632 | CLAW_DBF_TEXT(4,trace,"StRdNter"); | |
3633 | p_clawh=(struct clawh *)privptr->p_claw_signal_blk; | |
3634 | p_clawh->flag=CLAW_IDLE; /* 0x00 */ | |
3635 | ||
3636 | if ((privptr->p_write_active_first!=NULL && | |
3637 | privptr->p_write_active_first->header.flag!=CLAW_PENDING) || | |
3638 | (privptr->p_read_active_first!=NULL && | |
3639 | privptr->p_read_active_first->header.flag!=CLAW_PENDING )) { | |
3640 | p_clawh->flag=CLAW_BUSY; /* 0xff */ | |
3641 | } | |
3642 | #ifdef DEBUGMSG | |
3643 | printk(KERN_INFO "%s:%s state-%02x\n" , | |
3644 | dev->name,__FUNCTION__, p_ch->claw_state); | |
3645 | #endif | |
3646 | if (lock==LOCK_YES) { | |
3647 | spin_lock_irqsave(get_ccwdev_lock(p_ch->cdev), saveflags); | |
3648 | } | |
3649 | if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { | |
3650 | #ifdef DEBUGMSG | |
3651 | printk(KERN_INFO "%s: HOT READ started in %s\n" , | |
3652 | dev->name,__FUNCTION__); | |
3653 | p_clawh=(struct clawh *)privptr->p_claw_signal_blk; | |
3654 | dumpit((char *)&p_clawh->flag , 1); | |
3655 | #endif | |
3656 | CLAW_DBF_TEXT(4,trace,"HotRead"); | |
3657 | p_ccwbk=privptr->p_read_active_first; | |
3658 | parm = (unsigned long) p_ch; | |
3659 | rc = ccw_device_start (p_ch->cdev, &p_ccwbk->read, parm, | |
3660 | 0xff, 0); | |
3661 | if (rc != 0) { | |
3662 | ccw_check_return_code(p_ch->cdev, rc); | |
3663 | } | |
3664 | } | |
3665 | else { | |
3666 | #ifdef DEBUGMSG | |
3667 | printk(KERN_INFO "%s: No READ started by %s() In progress\n" , | |
3668 | dev->name,__FUNCTION__); | |
3669 | #endif | |
3670 | CLAW_DBF_TEXT(2,trace,"ReadAct"); | |
3671 | } | |
3672 | ||
3673 | if (lock==LOCK_YES) { | |
3674 | spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); | |
3675 | } | |
3676 | #ifdef FUNCTRACE | |
3677 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3678 | dev->name,__FUNCTION__,__LINE__); | |
3679 | #endif | |
3680 | CLAW_DBF_TEXT(4,trace,"StRdExit"); | |
3681 | return; | |
3682 | } /* end of claw_strt_read */ | |
3683 | ||
3684 | /*-------------------------------------------------------------------* | |
3685 | * claw_strt_out_IO * | |
3686 | * * | |
3687 | *--------------------------------------------------------------------*/ | |
3688 | ||
3689 | static void | |
3690 | claw_strt_out_IO( struct net_device *dev ) | |
3691 | { | |
3692 | int rc = 0; | |
3693 | unsigned long parm; | |
3694 | struct claw_privbk *privptr; | |
3695 | struct chbk *p_ch; | |
3696 | struct ccwbk *p_first_ccw; | |
3697 | ||
3698 | #ifdef FUNCTRACE | |
3699 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3700 | #endif | |
3701 | if (!dev) { | |
3702 | return; | |
3703 | } | |
3704 | privptr=(struct claw_privbk *)dev->priv; | |
3705 | p_ch=&privptr->channel[WRITE]; | |
3706 | ||
3707 | #ifdef DEBUGMSG | |
3708 | printk(KERN_INFO "%s:%s state-%02x\n" , | |
3709 | dev->name,__FUNCTION__,p_ch->claw_state); | |
3710 | #endif | |
3711 | CLAW_DBF_TEXT(4,trace,"strt_io"); | |
3712 | p_first_ccw=privptr->p_write_active_first; | |
3713 | ||
3714 | if (p_ch->claw_state == CLAW_STOP) | |
3715 | return; | |
3716 | if (p_first_ccw == NULL) { | |
3717 | #ifdef FUNCTRACE | |
3718 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3719 | dev->name,__FUNCTION__,__LINE__); | |
3720 | #endif | |
3721 | return; | |
3722 | } | |
3723 | if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { | |
3724 | parm = (unsigned long) p_ch; | |
3725 | #ifdef DEBUGMSG | |
3726 | printk(KERN_INFO "%s:%s do_io \n" ,dev->name,__FUNCTION__); | |
3727 | dumpit((char *)p_first_ccw, sizeof(struct ccwbk)); | |
3728 | #endif | |
3729 | CLAW_DBF_TEXT(2,trace,"StWrtIO"); | |
3730 | rc = ccw_device_start (p_ch->cdev,&p_first_ccw->write, parm, | |
3731 | 0xff, 0); | |
3732 | if (rc != 0) { | |
3733 | ccw_check_return_code(p_ch->cdev, rc); | |
3734 | } | |
3735 | } | |
3736 | dev->trans_start = jiffies; | |
3737 | #ifdef FUNCTRACE | |
3738 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3739 | dev->name,__FUNCTION__,__LINE__); | |
3740 | #endif | |
3741 | ||
3742 | return; | |
3743 | } /* end of claw_strt_out_IO */ | |
3744 | ||
3745 | /*-------------------------------------------------------------------* | |
3746 | * Free write buffers * | |
3747 | * * | |
3748 | *--------------------------------------------------------------------*/ | |
3749 | ||
3750 | static void | |
3751 | claw_free_wrt_buf( struct net_device *dev ) | |
3752 | { | |
3753 | ||
3754 | struct claw_privbk *privptr=(struct claw_privbk *)dev->priv; | |
3755 | struct ccwbk*p_first_ccw; | |
3756 | struct ccwbk*p_last_ccw; | |
3757 | struct ccwbk*p_this_ccw; | |
3758 | struct ccwbk*p_next_ccw; | |
3759 | #ifdef IOTRACE | |
3760 | struct ccwbk*p_buf; | |
3761 | #endif | |
3762 | #ifdef FUNCTRACE | |
3763 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3764 | printk(KERN_INFO "%s: free count = %d variable dev =\n", | |
3765 | dev->name,privptr->write_free_count); | |
3766 | #endif | |
3767 | CLAW_DBF_TEXT(4,trace,"freewrtb"); | |
3768 | /* scan the write queue to free any completed write packets */ | |
3769 | p_first_ccw=NULL; | |
3770 | p_last_ccw=NULL; | |
3771 | #ifdef IOTRACE | |
3772 | printk(KERN_INFO "%s: Dump current CCW chain \n",dev->name ); | |
3773 | p_buf=privptr->p_write_active_first; | |
3774 | while (p_buf!=NULL) { | |
3775 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
3776 | p_buf=p_buf->next; | |
3777 | } | |
3778 | if (p_buf==NULL) { | |
3779 | printk(KERN_INFO "%s: privptr->p_write_" | |
3780 | "active_first==NULL\n",dev->name ); | |
3781 | } | |
3782 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
3783 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
3784 | #endif | |
3785 | p_this_ccw=privptr->p_write_active_first; | |
3786 | while ( (p_this_ccw!=NULL) && (p_this_ccw->header.flag!=CLAW_PENDING)) | |
3787 | { | |
3788 | p_next_ccw = p_this_ccw->next; | |
3789 | if (((p_next_ccw!=NULL) && | |
3790 | (p_next_ccw->header.flag!=CLAW_PENDING)) || | |
3791 | ((p_this_ccw == privptr->p_write_active_last) && | |
3792 | (p_this_ccw->header.flag!=CLAW_PENDING))) { | |
3793 | /* The next CCW is OK or this is */ | |
3794 | /* the last CCW...free it @A1A */ | |
3795 | privptr->p_write_active_first=p_this_ccw->next; | |
3796 | p_this_ccw->header.flag=CLAW_PENDING; | |
3797 | p_this_ccw->next=privptr->p_write_free_chain; | |
3798 | privptr->p_write_free_chain=p_this_ccw; | |
3799 | ++privptr->write_free_count; | |
3800 | privptr->stats.tx_bytes+= p_this_ccw->write.count; | |
3801 | p_this_ccw=privptr->p_write_active_first; | |
3802 | privptr->stats.tx_packets++; | |
3803 | } | |
3804 | else { | |
3805 | break; | |
3806 | } | |
3807 | } | |
3808 | if (privptr->write_free_count!=0) { | |
3809 | claw_clearbit_busy(TB_NOBUFFER,dev); | |
3810 | } | |
3811 | /* whole chain removed? */ | |
3812 | if (privptr->p_write_active_first==NULL) { | |
3813 | privptr->p_write_active_last=NULL; | |
3814 | #ifdef DEBUGMSG | |
3815 | printk(KERN_INFO "%s:%s p_write_" | |
3816 | "active_first==NULL\n",dev->name,__FUNCTION__); | |
3817 | #endif | |
3818 | } | |
3819 | #ifdef IOTRACE | |
3820 | printk(KERN_INFO "%s: Dump arranged CCW chain \n",dev->name ); | |
3821 | p_buf=privptr->p_write_active_first; | |
3822 | while (p_buf!=NULL) { | |
3823 | dumpit((char *)p_buf, sizeof(struct ccwbk)); | |
3824 | p_buf=p_buf->next; | |
3825 | } | |
3826 | if (p_buf==NULL) { | |
3827 | printk(KERN_INFO "%s: privptr->p_write_active_" | |
3828 | "first==NULL\n",dev->name ); | |
3829 | } | |
3830 | p_buf=(struct ccwbk*)privptr->p_end_ccw; | |
3831 | dumpit((char *)p_buf, sizeof(struct endccw)); | |
3832 | #endif | |
3833 | ||
3834 | CLAW_DBF_TEXT_(4,trace,"FWC=%d",privptr->write_free_count); | |
3835 | #ifdef FUNCTRACE | |
3836 | printk(KERN_INFO "%s:%s Exit on line %d free_count =%d\n", | |
3837 | dev->name,__FUNCTION__, __LINE__,privptr->write_free_count); | |
3838 | #endif | |
3839 | return; | |
3840 | } | |
3841 | ||
3842 | /*-------------------------------------------------------------------* | |
3843 | * claw free netdevice * | |
3844 | * * | |
3845 | *--------------------------------------------------------------------*/ | |
3846 | static void | |
3847 | claw_free_netdevice(struct net_device * dev, int free_dev) | |
3848 | { | |
3849 | struct claw_privbk *privptr; | |
3850 | #ifdef FUNCTRACE | |
3851 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3852 | #endif | |
3853 | CLAW_DBF_TEXT(2,setup,"free_dev"); | |
3854 | ||
3855 | if (!dev) | |
3856 | return; | |
3857 | CLAW_DBF_TEXT_(2,setup,"%s",dev->name); | |
3858 | privptr = dev->priv; | |
3859 | if (dev->flags & IFF_RUNNING) | |
3860 | claw_release(dev); | |
3861 | if (privptr) { | |
3862 | privptr->channel[READ].ndev = NULL; /* say it's free */ | |
3863 | } | |
3864 | dev->priv=NULL; | |
3865 | #ifdef MODULE | |
3866 | if (free_dev) { | |
3867 | free_netdev(dev); | |
3868 | } | |
3869 | #endif | |
3870 | CLAW_DBF_TEXT(2,setup,"feee_ok"); | |
3871 | #ifdef FUNCTRACE | |
3872 | printk(KERN_INFO "%s:%s Exit\n",dev->name,__FUNCTION__); | |
3873 | #endif | |
3874 | } | |
3875 | ||
3876 | /** | |
3877 | * Claw init netdevice | |
3878 | * Initialize everything of the net device except the name and the | |
3879 | * channel structs. | |
3880 | */ | |
3881 | static void | |
3882 | claw_init_netdevice(struct net_device * dev) | |
3883 | { | |
3884 | #ifdef FUNCTRACE | |
3885 | printk(KERN_INFO "%s:%s Enter\n",dev->name,__FUNCTION__); | |
3886 | #endif | |
3887 | CLAW_DBF_TEXT(2,setup,"init_dev"); | |
3888 | CLAW_DBF_TEXT_(2,setup,"%s",dev->name); | |
3889 | if (!dev) { | |
3890 | printk(KERN_WARNING "claw:%s BAD Device exit line %d\n", | |
3891 | __FUNCTION__,__LINE__); | |
3892 | CLAW_DBF_TEXT(2,setup,"baddev"); | |
3893 | return; | |
3894 | } | |
3895 | dev->mtu = CLAW_DEFAULT_MTU_SIZE; | |
3896 | dev->hard_start_xmit = claw_tx; | |
3897 | dev->open = claw_open; | |
3898 | dev->stop = claw_release; | |
3899 | dev->get_stats = claw_stats; | |
3900 | dev->change_mtu = claw_change_mtu; | |
3901 | dev->hard_header_len = 0; | |
3902 | dev->addr_len = 0; | |
3903 | dev->type = ARPHRD_SLIP; | |
3904 | dev->tx_queue_len = 1300; | |
3905 | dev->flags = IFF_POINTOPOINT | IFF_NOARP; | |
3906 | SET_MODULE_OWNER(dev); | |
3907 | #ifdef FUNCTRACE | |
3908 | printk(KERN_INFO "%s:%s Exit\n",dev->name,__FUNCTION__); | |
3909 | #endif | |
3910 | CLAW_DBF_TEXT(2,setup,"initok"); | |
3911 | return; | |
3912 | } | |
3913 | ||
3914 | /** | |
3915 | * Init a new channel in the privptr->channel[i]. | |
3916 | * | |
3917 | * @param cdev The ccw_device to be added. | |
3918 | * | |
3919 | * @return 0 on success, !0 on error. | |
3920 | */ | |
3921 | static int | |
3922 | add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) | |
3923 | { | |
3924 | struct chbk *p_ch; | |
3925 | ||
3926 | #ifdef FUNCTRACE | |
3927 | printk(KERN_INFO "%s:%s Enter\n",cdev->dev.bus_id,__FUNCTION__); | |
3928 | #endif | |
3929 | CLAW_DBF_TEXT_(2,setup,"%s",cdev->dev.bus_id); | |
3930 | privptr->channel[i].flag = i+1; /* Read is 1 Write is 2 */ | |
3931 | p_ch = &privptr->channel[i]; | |
3932 | p_ch->cdev = cdev; | |
3933 | snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", cdev->dev.bus_id); | |
3934 | sscanf(cdev->dev.bus_id+4,"%x",&p_ch->devno); | |
3935 | if ((p_ch->irb = kmalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { | |
3936 | printk(KERN_WARNING "%s Out of memory in %s for irb\n", | |
3937 | p_ch->id,__FUNCTION__); | |
3938 | #ifdef FUNCTRACE | |
3939 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3940 | p_ch->id,__FUNCTION__,__LINE__); | |
3941 | #endif | |
3942 | return -ENOMEM; | |
3943 | } | |
3944 | memset(p_ch->irb, 0, sizeof (struct irb)); | |
3945 | #ifdef FUNCTRACE | |
3946 | printk(KERN_INFO "%s:%s Exit on line %d\n", | |
3947 | cdev->dev.bus_id,__FUNCTION__,__LINE__); | |
3948 | #endif | |
3949 | return 0; | |
3950 | } | |
3951 | ||
3952 | ||
3953 | /** | |
3954 | * | |
3955 | * Setup an interface. | |
3956 | * | |
3957 | * @param cgdev Device to be setup. | |
3958 | * | |
3959 | * @returns 0 on success, !0 on failure. | |
3960 | */ | |
3961 | static int | |
3962 | claw_new_device(struct ccwgroup_device *cgdev) | |
3963 | { | |
3964 | struct claw_privbk *privptr; | |
3965 | struct claw_env *p_env; | |
3966 | struct net_device *dev; | |
3967 | int ret; | |
3968 | ||
3969 | pr_debug("%s() called\n", __FUNCTION__); | |
3970 | printk(KERN_INFO "claw: add for %s\n",cgdev->cdev[READ]->dev.bus_id); | |
3971 | CLAW_DBF_TEXT(2,setup,"new_dev"); | |
3972 | privptr = cgdev->dev.driver_data; | |
3973 | cgdev->cdev[READ]->dev.driver_data = privptr; | |
3974 | cgdev->cdev[WRITE]->dev.driver_data = privptr; | |
3975 | if (!privptr) | |
3976 | return -ENODEV; | |
3977 | p_env = privptr->p_env; | |
3978 | sscanf(cgdev->cdev[READ]->dev.bus_id+4,"%x", | |
3979 | &p_env->devno[READ]); | |
3980 | sscanf(cgdev->cdev[WRITE]->dev.bus_id+4,"%x", | |
3981 | &p_env->devno[WRITE]); | |
3982 | ret = add_channel(cgdev->cdev[0],0,privptr); | |
3983 | if (ret == 0) | |
3984 | ret = add_channel(cgdev->cdev[1],1,privptr); | |
3985 | if (ret != 0) { | |
3986 | printk(KERN_WARNING | |
3987 | "add channel failed " | |
3988 | "with ret = %d\n", ret); | |
3989 | goto out; | |
3990 | } | |
3991 | ret = ccw_device_set_online(cgdev->cdev[READ]); | |
3992 | if (ret != 0) { | |
3993 | printk(KERN_WARNING | |
3994 | "claw: ccw_device_set_online %s READ failed " | |
3995 | "with ret = %d\n",cgdev->cdev[READ]->dev.bus_id,ret); | |
3996 | goto out; | |
3997 | } | |
3998 | ret = ccw_device_set_online(cgdev->cdev[WRITE]); | |
3999 | if (ret != 0) { | |
4000 | printk(KERN_WARNING | |
4001 | "claw: ccw_device_set_online %s WRITE failed " | |
4002 | "with ret = %d\n",cgdev->cdev[WRITE]->dev.bus_id, ret); | |
4003 | goto out; | |
4004 | } | |
4005 | dev = alloc_netdev(0,"claw%d",claw_init_netdevice); | |
4006 | if (!dev) { | |
4007 | printk(KERN_WARNING "%s:alloc_netdev failed\n",__FUNCTION__); | |
4008 | goto out; | |
4009 | } | |
4010 | dev->priv = privptr; | |
4011 | cgdev->dev.driver_data = privptr; | |
4012 | cgdev->cdev[READ]->dev.driver_data = privptr; | |
4013 | cgdev->cdev[WRITE]->dev.driver_data = privptr; | |
4014 | /* sysfs magic */ | |
4015 | SET_NETDEV_DEV(dev, &cgdev->dev); | |
4016 | if (register_netdev(dev) != 0) { | |
4017 | claw_free_netdevice(dev, 1); | |
4018 | CLAW_DBF_TEXT(2,trace,"regfail"); | |
4019 | goto out; | |
4020 | } | |
4021 | dev->flags &=~IFF_RUNNING; | |
4022 | if (privptr->buffs_alloc == 0) { | |
4023 | ret=init_ccw_bk(dev); | |
4024 | if (ret !=0) { | |
4025 | printk(KERN_WARNING | |
4026 | "claw: init_ccw_bk failed with ret=%d\n", ret); | |
4027 | unregister_netdev(dev); | |
4028 | claw_free_netdevice(dev,1); | |
4029 | CLAW_DBF_TEXT(2,trace,"ccwmem"); | |
4030 | goto out; | |
4031 | } | |
4032 | } | |
4033 | privptr->channel[READ].ndev = dev; | |
4034 | privptr->channel[WRITE].ndev = dev; | |
4035 | privptr->p_env->ndev = dev; | |
4036 | ||
4037 | printk(KERN_INFO "%s:readsize=%d writesize=%d " | |
4038 | "readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n", | |
4039 | dev->name, p_env->read_size, | |
4040 | p_env->write_size, p_env->read_buffers, | |
4041 | p_env->write_buffers, p_env->devno[READ], | |
4042 | p_env->devno[WRITE]); | |
4043 | printk(KERN_INFO "%s:host_name:%.8s, adapter_name " | |
4044 | ":%.8s api_type: %.8s\n", | |
4045 | dev->name, p_env->host_name, | |
4046 | p_env->adapter_name , p_env->api_type); | |
4047 | return 0; | |
4048 | out: | |
4049 | ccw_device_set_offline(cgdev->cdev[1]); | |
4050 | ccw_device_set_offline(cgdev->cdev[0]); | |
4051 | ||
4052 | return -ENODEV; | |
4053 | } | |
4054 | ||
4055 | static void | |
4056 | claw_purge_skb_queue(struct sk_buff_head *q) | |
4057 | { | |
4058 | struct sk_buff *skb; | |
4059 | ||
4060 | CLAW_DBF_TEXT(4,trace,"purgque"); | |
4061 | ||
4062 | while ((skb = skb_dequeue(q))) { | |
4063 | atomic_dec(&skb->users); | |
4064 | dev_kfree_skb_irq(skb); | |
4065 | } | |
4066 | } | |
4067 | ||
4068 | /** | |
4069 | * Shutdown an interface. | |
4070 | * | |
4071 | * @param cgdev Device to be shut down. | |
4072 | * | |
4073 | * @returns 0 on success, !0 on failure. | |
4074 | */ | |
4075 | static int | |
4076 | claw_shutdown_device(struct ccwgroup_device *cgdev) | |
4077 | { | |
4078 | struct claw_privbk *priv; | |
4079 | struct net_device *ndev; | |
4080 | int ret; | |
4081 | ||
4082 | pr_debug("%s() called\n", __FUNCTION__); | |
4083 | CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); | |
4084 | priv = cgdev->dev.driver_data; | |
4085 | if (!priv) | |
4086 | return -ENODEV; | |
4087 | ndev = priv->channel[READ].ndev; | |
4088 | if (ndev) { | |
4089 | /* Close the device */ | |
4090 | printk(KERN_INFO | |
4091 | "%s: shuting down \n",ndev->name); | |
4092 | if (ndev->flags & IFF_RUNNING) | |
4093 | ret = claw_release(ndev); | |
4094 | ndev->flags &=~IFF_RUNNING; | |
4095 | unregister_netdev(ndev); | |
4096 | ndev->priv = NULL; /* cgdev data, not ndev's to free */ | |
4097 | claw_free_netdevice(ndev, 1); | |
4098 | priv->channel[READ].ndev = NULL; | |
4099 | priv->channel[WRITE].ndev = NULL; | |
4100 | priv->p_env->ndev = NULL; | |
4101 | } | |
4102 | ccw_device_set_offline(cgdev->cdev[1]); | |
4103 | ccw_device_set_offline(cgdev->cdev[0]); | |
4104 | return 0; | |
4105 | } | |
4106 | ||
4107 | static void | |
4108 | claw_remove_device(struct ccwgroup_device *cgdev) | |
4109 | { | |
4110 | struct claw_privbk *priv; | |
4111 | ||
4112 | pr_debug("%s() called\n", __FUNCTION__); | |
4113 | CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); | |
4114 | priv = cgdev->dev.driver_data; | |
4115 | if (!priv) { | |
4116 | printk(KERN_WARNING "claw: %s() no Priv exiting\n",__FUNCTION__); | |
4117 | return; | |
4118 | } | |
4119 | printk(KERN_INFO "claw: %s() called %s will be removed.\n", | |
4120 | __FUNCTION__,cgdev->cdev[0]->dev.bus_id); | |
4121 | if (cgdev->state == CCWGROUP_ONLINE) | |
4122 | claw_shutdown_device(cgdev); | |
4123 | claw_remove_files(&cgdev->dev); | |
4124 | if (priv->p_mtc_envelope!=NULL) { | |
4125 | kfree(priv->p_mtc_envelope); | |
4126 | priv->p_mtc_envelope=NULL; | |
4127 | } | |
4128 | if (priv->p_env != NULL) { | |
4129 | kfree(priv->p_env); | |
4130 | priv->p_env=NULL; | |
4131 | } | |
4132 | if (priv->channel[0].irb != NULL) { | |
4133 | kfree(priv->channel[0].irb); | |
4134 | priv->channel[0].irb=NULL; | |
4135 | } | |
4136 | if (priv->channel[1].irb != NULL) { | |
4137 | kfree(priv->channel[1].irb); | |
4138 | priv->channel[1].irb=NULL; | |
4139 | } | |
4140 | kfree(priv); | |
4141 | cgdev->dev.driver_data=NULL; | |
4142 | cgdev->cdev[READ]->dev.driver_data = NULL; | |
4143 | cgdev->cdev[WRITE]->dev.driver_data = NULL; | |
4144 | put_device(&cgdev->dev); | |
4145 | } | |
4146 | ||
4147 | ||
4148 | /* | |
4149 | * sysfs attributes | |
4150 | */ | |
4151 | static ssize_t | |
3fd3c0a5 | 4152 | claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4153 | { |
4154 | struct claw_privbk *priv; | |
4155 | struct claw_env * p_env; | |
4156 | ||
4157 | priv = dev->driver_data; | |
4158 | if (!priv) | |
4159 | return -ENODEV; | |
4160 | p_env = priv->p_env; | |
4161 | return sprintf(buf, "%s\n",p_env->host_name); | |
4162 | } | |
4163 | ||
4164 | static ssize_t | |
3fd3c0a5 | 4165 | claw_hname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4166 | { |
4167 | struct claw_privbk *priv; | |
4168 | struct claw_env * p_env; | |
4169 | ||
4170 | priv = dev->driver_data; | |
4171 | if (!priv) | |
4172 | return -ENODEV; | |
4173 | p_env = priv->p_env; | |
4174 | if (count > MAX_NAME_LEN+1) | |
4175 | return -EINVAL; | |
4176 | memset(p_env->host_name, 0x20, MAX_NAME_LEN); | |
4177 | strncpy(p_env->host_name,buf, count); | |
4178 | p_env->host_name[count-1] = 0x20; /* clear extra 0x0a */ | |
4179 | p_env->host_name[MAX_NAME_LEN] = 0x00; | |
4180 | CLAW_DBF_TEXT(2,setup,"HstnSet"); | |
4181 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->host_name); | |
4182 | ||
4183 | return count; | |
4184 | } | |
4185 | ||
4186 | static DEVICE_ATTR(host_name, 0644, claw_hname_show, claw_hname_write); | |
4187 | ||
4188 | static ssize_t | |
3fd3c0a5 | 4189 | claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4190 | { |
4191 | struct claw_privbk *priv; | |
4192 | struct claw_env * p_env; | |
4193 | ||
4194 | priv = dev->driver_data; | |
4195 | if (!priv) | |
4196 | return -ENODEV; | |
4197 | p_env = priv->p_env; | |
4198 | return sprintf(buf, "%s\n",p_env->adapter_name); | |
4199 | } | |
4200 | ||
4201 | static ssize_t | |
3fd3c0a5 | 4202 | claw_adname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4203 | { |
4204 | struct claw_privbk *priv; | |
4205 | struct claw_env * p_env; | |
4206 | ||
4207 | priv = dev->driver_data; | |
4208 | if (!priv) | |
4209 | return -ENODEV; | |
4210 | p_env = priv->p_env; | |
4211 | if (count > MAX_NAME_LEN+1) | |
4212 | return -EINVAL; | |
4213 | memset(p_env->adapter_name, 0x20, MAX_NAME_LEN); | |
4214 | strncpy(p_env->adapter_name,buf, count); | |
4215 | p_env->adapter_name[count-1] = 0x20; /* clear extra 0x0a */ | |
4216 | p_env->adapter_name[MAX_NAME_LEN] = 0x00; | |
4217 | CLAW_DBF_TEXT(2,setup,"AdnSet"); | |
4218 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->adapter_name); | |
4219 | ||
4220 | return count; | |
4221 | } | |
4222 | ||
4223 | static DEVICE_ATTR(adapter_name, 0644, claw_adname_show, claw_adname_write); | |
4224 | ||
4225 | static ssize_t | |
3fd3c0a5 | 4226 | claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4227 | { |
4228 | struct claw_privbk *priv; | |
4229 | struct claw_env * p_env; | |
4230 | ||
4231 | priv = dev->driver_data; | |
4232 | if (!priv) | |
4233 | return -ENODEV; | |
4234 | p_env = priv->p_env; | |
4235 | return sprintf(buf, "%s\n", | |
4236 | p_env->api_type); | |
4237 | } | |
4238 | ||
4239 | static ssize_t | |
3fd3c0a5 | 4240 | claw_apname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4241 | { |
4242 | struct claw_privbk *priv; | |
4243 | struct claw_env * p_env; | |
4244 | ||
4245 | priv = dev->driver_data; | |
4246 | if (!priv) | |
4247 | return -ENODEV; | |
4248 | p_env = priv->p_env; | |
4249 | if (count > MAX_NAME_LEN+1) | |
4250 | return -EINVAL; | |
4251 | memset(p_env->api_type, 0x20, MAX_NAME_LEN); | |
4252 | strncpy(p_env->api_type,buf, count); | |
4253 | p_env->api_type[count-1] = 0x20; /* we get a loose 0x0a */ | |
4254 | p_env->api_type[MAX_NAME_LEN] = 0x00; | |
4255 | if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) { | |
4256 | p_env->read_size=DEF_PACK_BUFSIZE; | |
4257 | p_env->write_size=DEF_PACK_BUFSIZE; | |
4258 | p_env->packing=PACKING_ASK; | |
4259 | CLAW_DBF_TEXT(2,setup,"PACKING"); | |
4260 | } | |
4261 | else { | |
4262 | p_env->packing=0; | |
4263 | p_env->read_size=CLAW_FRAME_SIZE; | |
4264 | p_env->write_size=CLAW_FRAME_SIZE; | |
4265 | CLAW_DBF_TEXT(2,setup,"ApiSet"); | |
4266 | } | |
4267 | CLAW_DBF_TEXT_(2,setup,"%s",p_env->api_type); | |
4268 | return count; | |
4269 | } | |
4270 | ||
4271 | static DEVICE_ATTR(api_type, 0644, claw_apname_show, claw_apname_write); | |
4272 | ||
4273 | static ssize_t | |
3fd3c0a5 | 4274 | claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4275 | { |
4276 | struct claw_privbk *priv; | |
4277 | struct claw_env * p_env; | |
4278 | ||
4279 | priv = dev->driver_data; | |
4280 | if (!priv) | |
4281 | return -ENODEV; | |
4282 | p_env = priv->p_env; | |
4283 | return sprintf(buf, "%d\n", p_env->write_buffers); | |
4284 | } | |
4285 | ||
4286 | static ssize_t | |
3fd3c0a5 | 4287 | claw_wbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4288 | { |
4289 | struct claw_privbk *priv; | |
4290 | struct claw_env * p_env; | |
4291 | int nnn,max; | |
4292 | ||
4293 | priv = dev->driver_data; | |
4294 | if (!priv) | |
4295 | return -ENODEV; | |
4296 | p_env = priv->p_env; | |
4297 | sscanf(buf, "%i", &nnn); | |
4298 | if (p_env->packing) { | |
4299 | max = 64; | |
4300 | } | |
4301 | else { | |
4302 | max = 512; | |
4303 | } | |
4304 | if ((nnn > max ) || (nnn < 2)) | |
4305 | return -EINVAL; | |
4306 | p_env->write_buffers = nnn; | |
4307 | CLAW_DBF_TEXT(2,setup,"Wbufset"); | |
4308 | CLAW_DBF_TEXT_(2,setup,"WB=%d",p_env->write_buffers); | |
4309 | return count; | |
4310 | } | |
4311 | ||
4312 | static DEVICE_ATTR(write_buffer, 0644, claw_wbuff_show, claw_wbuff_write); | |
4313 | ||
4314 | static ssize_t | |
3fd3c0a5 | 4315 | claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4316 | { |
4317 | struct claw_privbk *priv; | |
4318 | struct claw_env * p_env; | |
4319 | ||
4320 | priv = dev->driver_data; | |
4321 | if (!priv) | |
4322 | return -ENODEV; | |
4323 | p_env = priv->p_env; | |
4324 | return sprintf(buf, "%d\n", p_env->read_buffers); | |
4325 | } | |
4326 | ||
4327 | static ssize_t | |
3fd3c0a5 | 4328 | claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
4329 | { |
4330 | struct claw_privbk *priv; | |
4331 | struct claw_env *p_env; | |
4332 | int nnn,max; | |
4333 | ||
4334 | priv = dev->driver_data; | |
4335 | if (!priv) | |
4336 | return -ENODEV; | |
4337 | p_env = priv->p_env; | |
4338 | sscanf(buf, "%i", &nnn); | |
4339 | if (p_env->packing) { | |
4340 | max = 64; | |
4341 | } | |
4342 | else { | |
4343 | max = 512; | |
4344 | } | |
4345 | if ((nnn > max ) || (nnn < 2)) | |
4346 | return -EINVAL; | |
4347 | p_env->read_buffers = nnn; | |
4348 | CLAW_DBF_TEXT(2,setup,"Rbufset"); | |
4349 | CLAW_DBF_TEXT_(2,setup,"RB=%d",p_env->read_buffers); | |
4350 | return count; | |
4351 | } | |
4352 | ||
4353 | static DEVICE_ATTR(read_buffer, 0644, claw_rbuff_show, claw_rbuff_write); | |
4354 | ||
4355 | static struct attribute *claw_attr[] = { | |
4356 | &dev_attr_read_buffer.attr, | |
4357 | &dev_attr_write_buffer.attr, | |
4358 | &dev_attr_adapter_name.attr, | |
4359 | &dev_attr_api_type.attr, | |
4360 | &dev_attr_host_name.attr, | |
4361 | NULL, | |
4362 | }; | |
4363 | ||
4364 | static struct attribute_group claw_attr_group = { | |
4365 | .attrs = claw_attr, | |
4366 | }; | |
4367 | ||
4368 | static int | |
4369 | claw_add_files(struct device *dev) | |
4370 | { | |
4371 | pr_debug("%s() called\n", __FUNCTION__); | |
4372 | CLAW_DBF_TEXT(2,setup,"add_file"); | |
4373 | return sysfs_create_group(&dev->kobj, &claw_attr_group); | |
4374 | } | |
4375 | ||
4376 | static void | |
4377 | claw_remove_files(struct device *dev) | |
4378 | { | |
4379 | pr_debug("%s() called\n", __FUNCTION__); | |
4380 | CLAW_DBF_TEXT(2,setup,"rem_file"); | |
4381 | sysfs_remove_group(&dev->kobj, &claw_attr_group); | |
4382 | } | |
4383 | ||
4384 | /*--------------------------------------------------------------------* | |
4385 | * claw_init and cleanup * | |
4386 | *---------------------------------------------------------------------*/ | |
4387 | ||
4388 | static void __exit | |
4389 | claw_cleanup(void) | |
4390 | { | |
4391 | unregister_cu3088_discipline(&claw_group_driver); | |
4392 | claw_unregister_debug_facility(); | |
4393 | printk(KERN_INFO "claw: Driver unloaded\n"); | |
4394 | ||
4395 | } | |
4396 | ||
4397 | /** | |
4398 | * Initialize module. | |
4399 | * This is called just after the module is loaded. | |
4400 | * | |
4401 | * @return 0 on success, !0 on error. | |
4402 | */ | |
4403 | static int __init | |
4404 | claw_init(void) | |
4405 | { | |
4406 | int ret = 0; | |
4407 | printk(KERN_INFO "claw: starting driver " | |
4408 | #ifdef MODULE | |
4409 | "module " | |
4410 | #else | |
4411 | "compiled into kernel " | |
4412 | #endif | |
4413 | " $Revision: 1.35 $ $Date: 2005/03/24 12:25:38 $ \n"); | |
4414 | ||
4415 | ||
4416 | #ifdef FUNCTRACE | |
4417 | printk(KERN_INFO "claw: %s() enter \n",__FUNCTION__); | |
4418 | #endif | |
4419 | ret = claw_register_debug_facility(); | |
4420 | if (ret) { | |
4421 | printk(KERN_WARNING "claw: %s() debug_register failed %d\n", | |
4422 | __FUNCTION__,ret); | |
4423 | return ret; | |
4424 | } | |
4425 | CLAW_DBF_TEXT(2,setup,"init_mod"); | |
4426 | ret = register_cu3088_discipline(&claw_group_driver); | |
4427 | if (ret) { | |
4428 | claw_unregister_debug_facility(); | |
4429 | printk(KERN_WARNING "claw; %s() cu3088 register failed %d\n", | |
4430 | __FUNCTION__,ret); | |
4431 | } | |
4432 | #ifdef FUNCTRACE | |
4433 | printk(KERN_INFO "claw: %s() exit \n",__FUNCTION__); | |
4434 | #endif | |
4435 | return ret; | |
4436 | } | |
4437 | ||
4438 | module_init(claw_init); | |
4439 | module_exit(claw_cleanup); | |
4440 | ||
4441 | ||
4442 | ||
4443 | /*--------------------------------------------------------------------* | |
4444 | * End of File * | |
4445 | *---------------------------------------------------------------------*/ | |
4446 | ||
4447 |