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1da177e4 LT |
1 | /* |
2 | $Id: fore200e.c,v 1.5 2000/04/14 10:10:34 davem Exp $ | |
3 | ||
4 | A FORE Systems 200E-series driver for ATM on Linux. | |
5 | Christophe Lizzi (lizzi@cnam.fr), October 1999-March 2003. | |
6 | ||
7 | Based on the PCA-200E driver from Uwe Dannowski (Uwe.Dannowski@inf.tu-dresden.de). | |
8 | ||
9 | This driver simultaneously supports PCA-200E and SBA-200E adapters | |
10 | on i386, alpha (untested), powerpc, sparc and sparc64 architectures. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | ||
1da177e4 LT |
28 | #include <linux/kernel.h> |
29 | #include <linux/slab.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/capability.h> | |
32 | #include <linux/sched.h> | |
33 | #include <linux/interrupt.h> | |
34 | #include <linux/bitops.h> | |
35 | #include <linux/pci.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/atmdev.h> | |
38 | #include <linux/sonet.h> | |
39 | #include <linux/atm_suni.h> | |
40 | #include <linux/dma-mapping.h> | |
41 | #include <linux/delay.h> | |
42 | #include <asm/io.h> | |
43 | #include <asm/string.h> | |
44 | #include <asm/page.h> | |
45 | #include <asm/irq.h> | |
46 | #include <asm/dma.h> | |
47 | #include <asm/byteorder.h> | |
48 | #include <asm/uaccess.h> | |
49 | #include <asm/atomic.h> | |
50 | ||
51 | #ifdef CONFIG_ATM_FORE200E_SBA | |
52 | #include <asm/idprom.h> | |
53 | #include <asm/sbus.h> | |
54 | #include <asm/openprom.h> | |
55 | #include <asm/oplib.h> | |
56 | #include <asm/pgtable.h> | |
57 | #endif | |
58 | ||
59 | #if defined(CONFIG_ATM_FORE200E_USE_TASKLET) /* defer interrupt work to a tasklet */ | |
60 | #define FORE200E_USE_TASKLET | |
61 | #endif | |
62 | ||
63 | #if 0 /* enable the debugging code of the buffer supply queues */ | |
64 | #define FORE200E_BSQ_DEBUG | |
65 | #endif | |
66 | ||
67 | #if 1 /* ensure correct handling of 52-byte AAL0 SDUs expected by atmdump-like apps */ | |
68 | #define FORE200E_52BYTE_AAL0_SDU | |
69 | #endif | |
70 | ||
71 | #include "fore200e.h" | |
72 | #include "suni.h" | |
73 | ||
74 | #define FORE200E_VERSION "0.3e" | |
75 | ||
76 | #define FORE200E "fore200e: " | |
77 | ||
78 | #if 0 /* override .config */ | |
79 | #define CONFIG_ATM_FORE200E_DEBUG 1 | |
80 | #endif | |
81 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) | |
82 | #define DPRINTK(level, format, args...) do { if (CONFIG_ATM_FORE200E_DEBUG >= (level)) \ | |
83 | printk(FORE200E format, ##args); } while (0) | |
84 | #else | |
85 | #define DPRINTK(level, format, args...) do {} while (0) | |
86 | #endif | |
87 | ||
88 | ||
89 | #define FORE200E_ALIGN(addr, alignment) \ | |
90 | ((((unsigned long)(addr) + (alignment - 1)) & ~(alignment - 1)) - (unsigned long)(addr)) | |
91 | ||
92 | #define FORE200E_DMA_INDEX(dma_addr, type, index) ((dma_addr) + (index) * sizeof(type)) | |
93 | ||
94 | #define FORE200E_INDEX(virt_addr, type, index) (&((type *)(virt_addr))[ index ]) | |
95 | ||
96 | #define FORE200E_NEXT_ENTRY(index, modulo) (index = ++(index) % (modulo)) | |
97 | ||
98 | #if 1 | |
99 | #define ASSERT(expr) if (!(expr)) { \ | |
100 | printk(FORE200E "assertion failed! %s[%d]: %s\n", \ | |
101 | __FUNCTION__, __LINE__, #expr); \ | |
102 | panic(FORE200E "%s", __FUNCTION__); \ | |
103 | } | |
104 | #else | |
105 | #define ASSERT(expr) do {} while (0) | |
106 | #endif | |
107 | ||
108 | ||
109 | static const struct atmdev_ops fore200e_ops; | |
110 | static const struct fore200e_bus fore200e_bus[]; | |
111 | ||
112 | static LIST_HEAD(fore200e_boards); | |
113 | ||
114 | ||
115 | MODULE_AUTHOR("Christophe Lizzi - credits to Uwe Dannowski and Heikki Vatiainen"); | |
116 | MODULE_DESCRIPTION("FORE Systems 200E-series ATM driver - version " FORE200E_VERSION); | |
117 | MODULE_SUPPORTED_DEVICE("PCA-200E, SBA-200E"); | |
118 | ||
119 | ||
120 | static const int fore200e_rx_buf_nbr[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { | |
121 | { BUFFER_S1_NBR, BUFFER_L1_NBR }, | |
122 | { BUFFER_S2_NBR, BUFFER_L2_NBR } | |
123 | }; | |
124 | ||
125 | static const int fore200e_rx_buf_size[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { | |
126 | { BUFFER_S1_SIZE, BUFFER_L1_SIZE }, | |
127 | { BUFFER_S2_SIZE, BUFFER_L2_SIZE } | |
128 | }; | |
129 | ||
130 | ||
131 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) | |
132 | static const char* fore200e_traffic_class[] = { "NONE", "UBR", "CBR", "VBR", "ABR", "ANY" }; | |
133 | #endif | |
134 | ||
135 | ||
136 | #if 0 /* currently unused */ | |
137 | static int | |
138 | fore200e_fore2atm_aal(enum fore200e_aal aal) | |
139 | { | |
140 | switch(aal) { | |
141 | case FORE200E_AAL0: return ATM_AAL0; | |
142 | case FORE200E_AAL34: return ATM_AAL34; | |
143 | case FORE200E_AAL5: return ATM_AAL5; | |
144 | } | |
145 | ||
146 | return -EINVAL; | |
147 | } | |
148 | #endif | |
149 | ||
150 | ||
151 | static enum fore200e_aal | |
152 | fore200e_atm2fore_aal(int aal) | |
153 | { | |
154 | switch(aal) { | |
155 | case ATM_AAL0: return FORE200E_AAL0; | |
156 | case ATM_AAL34: return FORE200E_AAL34; | |
157 | case ATM_AAL1: | |
158 | case ATM_AAL2: | |
159 | case ATM_AAL5: return FORE200E_AAL5; | |
160 | } | |
161 | ||
162 | return -EINVAL; | |
163 | } | |
164 | ||
165 | ||
166 | static char* | |
167 | fore200e_irq_itoa(int irq) | |
168 | { | |
1da177e4 LT |
169 | static char str[8]; |
170 | sprintf(str, "%d", irq); | |
171 | return str; | |
1da177e4 LT |
172 | } |
173 | ||
174 | ||
175 | static void* | |
dd0fc66f | 176 | fore200e_kmalloc(int size, gfp_t flags) |
1da177e4 | 177 | { |
7b5b3f3d | 178 | void *chunk = kzalloc(size, flags); |
1da177e4 | 179 | |
7b5b3f3d RD |
180 | if (!chunk) |
181 | printk(FORE200E "kmalloc() failed, requested size = %d, flags = 0x%x\n", size, flags); | |
1da177e4 LT |
182 | |
183 | return chunk; | |
184 | } | |
185 | ||
186 | ||
187 | static void | |
188 | fore200e_kfree(void* chunk) | |
189 | { | |
190 | kfree(chunk); | |
191 | } | |
192 | ||
193 | ||
194 | /* allocate and align a chunk of memory intended to hold the data behing exchanged | |
195 | between the driver and the adapter (using streaming DVMA) */ | |
196 | ||
197 | static int | |
198 | fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, int alignment, int direction) | |
199 | { | |
200 | unsigned long offset = 0; | |
201 | ||
202 | if (alignment <= sizeof(int)) | |
203 | alignment = 0; | |
204 | ||
205 | chunk->alloc_size = size + alignment; | |
206 | chunk->align_size = size; | |
207 | chunk->direction = direction; | |
208 | ||
209 | chunk->alloc_addr = fore200e_kmalloc(chunk->alloc_size, GFP_KERNEL | GFP_DMA); | |
210 | if (chunk->alloc_addr == NULL) | |
211 | return -ENOMEM; | |
212 | ||
213 | if (alignment > 0) | |
214 | offset = FORE200E_ALIGN(chunk->alloc_addr, alignment); | |
215 | ||
216 | chunk->align_addr = chunk->alloc_addr + offset; | |
217 | ||
218 | chunk->dma_addr = fore200e->bus->dma_map(fore200e, chunk->align_addr, chunk->align_size, direction); | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
223 | ||
224 | /* free a chunk of memory */ | |
225 | ||
226 | static void | |
227 | fore200e_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | |
228 | { | |
229 | fore200e->bus->dma_unmap(fore200e, chunk->dma_addr, chunk->dma_size, chunk->direction); | |
230 | ||
231 | fore200e_kfree(chunk->alloc_addr); | |
232 | } | |
233 | ||
234 | ||
235 | static void | |
236 | fore200e_spin(int msecs) | |
237 | { | |
238 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | |
239 | while (time_before(jiffies, timeout)); | |
240 | } | |
241 | ||
242 | ||
243 | static int | |
244 | fore200e_poll(struct fore200e* fore200e, volatile u32* addr, u32 val, int msecs) | |
245 | { | |
246 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | |
247 | int ok; | |
248 | ||
249 | mb(); | |
250 | do { | |
251 | if ((ok = (*addr == val)) || (*addr & STATUS_ERROR)) | |
252 | break; | |
253 | ||
254 | } while (time_before(jiffies, timeout)); | |
255 | ||
256 | #if 1 | |
257 | if (!ok) { | |
258 | printk(FORE200E "cmd polling failed, got status 0x%08x, expected 0x%08x\n", | |
259 | *addr, val); | |
260 | } | |
261 | #endif | |
262 | ||
263 | return ok; | |
264 | } | |
265 | ||
266 | ||
267 | static int | |
268 | fore200e_io_poll(struct fore200e* fore200e, volatile u32 __iomem *addr, u32 val, int msecs) | |
269 | { | |
270 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | |
271 | int ok; | |
272 | ||
273 | do { | |
274 | if ((ok = (fore200e->bus->read(addr) == val))) | |
275 | break; | |
276 | ||
277 | } while (time_before(jiffies, timeout)); | |
278 | ||
279 | #if 1 | |
280 | if (!ok) { | |
281 | printk(FORE200E "I/O polling failed, got status 0x%08x, expected 0x%08x\n", | |
282 | fore200e->bus->read(addr), val); | |
283 | } | |
284 | #endif | |
285 | ||
286 | return ok; | |
287 | } | |
288 | ||
289 | ||
290 | static void | |
291 | fore200e_free_rx_buf(struct fore200e* fore200e) | |
292 | { | |
293 | int scheme, magn, nbr; | |
294 | struct buffer* buffer; | |
295 | ||
296 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | |
297 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | |
298 | ||
299 | if ((buffer = fore200e->host_bsq[ scheme ][ magn ].buffer) != NULL) { | |
300 | ||
301 | for (nbr = 0; nbr < fore200e_rx_buf_nbr[ scheme ][ magn ]; nbr++) { | |
302 | ||
303 | struct chunk* data = &buffer[ nbr ].data; | |
304 | ||
305 | if (data->alloc_addr != NULL) | |
306 | fore200e_chunk_free(fore200e, data); | |
307 | } | |
308 | } | |
309 | } | |
310 | } | |
311 | } | |
312 | ||
313 | ||
314 | static void | |
315 | fore200e_uninit_bs_queue(struct fore200e* fore200e) | |
316 | { | |
317 | int scheme, magn; | |
318 | ||
319 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | |
320 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | |
321 | ||
322 | struct chunk* status = &fore200e->host_bsq[ scheme ][ magn ].status; | |
323 | struct chunk* rbd_block = &fore200e->host_bsq[ scheme ][ magn ].rbd_block; | |
324 | ||
325 | if (status->alloc_addr) | |
326 | fore200e->bus->dma_chunk_free(fore200e, status); | |
327 | ||
328 | if (rbd_block->alloc_addr) | |
329 | fore200e->bus->dma_chunk_free(fore200e, rbd_block); | |
330 | } | |
331 | } | |
332 | } | |
333 | ||
334 | ||
335 | static int | |
336 | fore200e_reset(struct fore200e* fore200e, int diag) | |
337 | { | |
338 | int ok; | |
339 | ||
340 | fore200e->cp_monitor = fore200e->virt_base + FORE200E_CP_MONITOR_OFFSET; | |
341 | ||
342 | fore200e->bus->write(BSTAT_COLD_START, &fore200e->cp_monitor->bstat); | |
343 | ||
344 | fore200e->bus->reset(fore200e); | |
345 | ||
346 | if (diag) { | |
347 | ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_SELFTEST_OK, 1000); | |
348 | if (ok == 0) { | |
349 | ||
350 | printk(FORE200E "device %s self-test failed\n", fore200e->name); | |
351 | return -ENODEV; | |
352 | } | |
353 | ||
354 | printk(FORE200E "device %s self-test passed\n", fore200e->name); | |
355 | ||
356 | fore200e->state = FORE200E_STATE_RESET; | |
357 | } | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | ||
363 | static void | |
364 | fore200e_shutdown(struct fore200e* fore200e) | |
365 | { | |
366 | printk(FORE200E "removing device %s at 0x%lx, IRQ %s\n", | |
367 | fore200e->name, fore200e->phys_base, | |
368 | fore200e_irq_itoa(fore200e->irq)); | |
369 | ||
370 | if (fore200e->state > FORE200E_STATE_RESET) { | |
371 | /* first, reset the board to prevent further interrupts or data transfers */ | |
372 | fore200e_reset(fore200e, 0); | |
373 | } | |
374 | ||
375 | /* then, release all allocated resources */ | |
376 | switch(fore200e->state) { | |
377 | ||
378 | case FORE200E_STATE_COMPLETE: | |
a2c1aa54 | 379 | kfree(fore200e->stats); |
1da177e4 LT |
380 | |
381 | case FORE200E_STATE_IRQ: | |
382 | free_irq(fore200e->irq, fore200e->atm_dev); | |
383 | ||
384 | case FORE200E_STATE_ALLOC_BUF: | |
385 | fore200e_free_rx_buf(fore200e); | |
386 | ||
387 | case FORE200E_STATE_INIT_BSQ: | |
388 | fore200e_uninit_bs_queue(fore200e); | |
389 | ||
390 | case FORE200E_STATE_INIT_RXQ: | |
391 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.status); | |
392 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.rpd); | |
393 | ||
394 | case FORE200E_STATE_INIT_TXQ: | |
395 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.status); | |
396 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.tpd); | |
397 | ||
398 | case FORE200E_STATE_INIT_CMDQ: | |
399 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_cmdq.status); | |
400 | ||
401 | case FORE200E_STATE_INITIALIZE: | |
402 | /* nothing to do for that state */ | |
403 | ||
404 | case FORE200E_STATE_START_FW: | |
405 | /* nothing to do for that state */ | |
406 | ||
407 | case FORE200E_STATE_LOAD_FW: | |
408 | /* nothing to do for that state */ | |
409 | ||
410 | case FORE200E_STATE_RESET: | |
411 | /* nothing to do for that state */ | |
412 | ||
413 | case FORE200E_STATE_MAP: | |
414 | fore200e->bus->unmap(fore200e); | |
415 | ||
416 | case FORE200E_STATE_CONFIGURE: | |
417 | /* nothing to do for that state */ | |
418 | ||
419 | case FORE200E_STATE_REGISTER: | |
420 | /* XXX shouldn't we *start* by deregistering the device? */ | |
421 | atm_dev_deregister(fore200e->atm_dev); | |
422 | ||
423 | case FORE200E_STATE_BLANK: | |
424 | /* nothing to do for that state */ | |
425 | break; | |
426 | } | |
427 | } | |
428 | ||
429 | ||
430 | #ifdef CONFIG_ATM_FORE200E_PCA | |
431 | ||
432 | static u32 fore200e_pca_read(volatile u32 __iomem *addr) | |
433 | { | |
434 | /* on big-endian hosts, the board is configured to convert | |
435 | the endianess of slave RAM accesses */ | |
436 | return le32_to_cpu(readl(addr)); | |
437 | } | |
438 | ||
439 | ||
440 | static void fore200e_pca_write(u32 val, volatile u32 __iomem *addr) | |
441 | { | |
442 | /* on big-endian hosts, the board is configured to convert | |
443 | the endianess of slave RAM accesses */ | |
444 | writel(cpu_to_le32(val), addr); | |
445 | } | |
446 | ||
447 | ||
448 | static u32 | |
449 | fore200e_pca_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction) | |
450 | { | |
451 | u32 dma_addr = pci_map_single((struct pci_dev*)fore200e->bus_dev, virt_addr, size, direction); | |
452 | ||
453 | DPRINTK(3, "PCI DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d, --> dma_addr = 0x%08x\n", | |
454 | virt_addr, size, direction, dma_addr); | |
455 | ||
456 | return dma_addr; | |
457 | } | |
458 | ||
459 | ||
460 | static void | |
461 | fore200e_pca_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
462 | { | |
463 | DPRINTK(3, "PCI DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d\n", | |
464 | dma_addr, size, direction); | |
465 | ||
466 | pci_unmap_single((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
467 | } | |
468 | ||
469 | ||
470 | static void | |
471 | fore200e_pca_dma_sync_for_cpu(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
472 | { | |
473 | DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | |
474 | ||
475 | pci_dma_sync_single_for_cpu((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
476 | } | |
477 | ||
478 | static void | |
479 | fore200e_pca_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
480 | { | |
481 | DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | |
482 | ||
483 | pci_dma_sync_single_for_device((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
484 | } | |
485 | ||
486 | ||
487 | /* allocate a DMA consistent chunk of memory intended to act as a communication mechanism | |
488 | (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */ | |
489 | ||
490 | static int | |
491 | fore200e_pca_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, | |
492 | int size, int nbr, int alignment) | |
493 | { | |
494 | /* returned chunks are page-aligned */ | |
495 | chunk->alloc_size = size * nbr; | |
496 | chunk->alloc_addr = pci_alloc_consistent((struct pci_dev*)fore200e->bus_dev, | |
497 | chunk->alloc_size, | |
498 | &chunk->dma_addr); | |
499 | ||
500 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) | |
501 | return -ENOMEM; | |
502 | ||
503 | chunk->align_addr = chunk->alloc_addr; | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | ||
509 | /* free a DMA consistent chunk of memory */ | |
510 | ||
511 | static void | |
512 | fore200e_pca_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | |
513 | { | |
514 | pci_free_consistent((struct pci_dev*)fore200e->bus_dev, | |
515 | chunk->alloc_size, | |
516 | chunk->alloc_addr, | |
517 | chunk->dma_addr); | |
518 | } | |
519 | ||
520 | ||
521 | static int | |
522 | fore200e_pca_irq_check(struct fore200e* fore200e) | |
523 | { | |
524 | /* this is a 1 bit register */ | |
525 | int irq_posted = readl(fore200e->regs.pca.psr); | |
526 | ||
527 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG == 2) | |
528 | if (irq_posted && (readl(fore200e->regs.pca.hcr) & PCA200E_HCR_OUTFULL)) { | |
529 | DPRINTK(2,"FIFO OUT full, device %d\n", fore200e->atm_dev->number); | |
530 | } | |
531 | #endif | |
532 | ||
533 | return irq_posted; | |
534 | } | |
535 | ||
536 | ||
537 | static void | |
538 | fore200e_pca_irq_ack(struct fore200e* fore200e) | |
539 | { | |
540 | writel(PCA200E_HCR_CLRINTR, fore200e->regs.pca.hcr); | |
541 | } | |
542 | ||
543 | ||
544 | static void | |
545 | fore200e_pca_reset(struct fore200e* fore200e) | |
546 | { | |
547 | writel(PCA200E_HCR_RESET, fore200e->regs.pca.hcr); | |
548 | fore200e_spin(10); | |
549 | writel(0, fore200e->regs.pca.hcr); | |
550 | } | |
551 | ||
552 | ||
c027f5f9 | 553 | static int __devinit |
1da177e4 LT |
554 | fore200e_pca_map(struct fore200e* fore200e) |
555 | { | |
556 | DPRINTK(2, "device %s being mapped in memory\n", fore200e->name); | |
557 | ||
558 | fore200e->virt_base = ioremap(fore200e->phys_base, PCA200E_IOSPACE_LENGTH); | |
559 | ||
560 | if (fore200e->virt_base == NULL) { | |
561 | printk(FORE200E "can't map device %s\n", fore200e->name); | |
562 | return -EFAULT; | |
563 | } | |
564 | ||
565 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); | |
566 | ||
567 | /* gain access to the PCA specific registers */ | |
568 | fore200e->regs.pca.hcr = fore200e->virt_base + PCA200E_HCR_OFFSET; | |
569 | fore200e->regs.pca.imr = fore200e->virt_base + PCA200E_IMR_OFFSET; | |
570 | fore200e->regs.pca.psr = fore200e->virt_base + PCA200E_PSR_OFFSET; | |
571 | ||
572 | fore200e->state = FORE200E_STATE_MAP; | |
573 | return 0; | |
574 | } | |
575 | ||
576 | ||
577 | static void | |
578 | fore200e_pca_unmap(struct fore200e* fore200e) | |
579 | { | |
580 | DPRINTK(2, "device %s being unmapped from memory\n", fore200e->name); | |
581 | ||
582 | if (fore200e->virt_base != NULL) | |
583 | iounmap(fore200e->virt_base); | |
584 | } | |
585 | ||
586 | ||
c027f5f9 | 587 | static int __devinit |
1da177e4 LT |
588 | fore200e_pca_configure(struct fore200e* fore200e) |
589 | { | |
590 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; | |
591 | u8 master_ctrl, latency; | |
592 | ||
593 | DPRINTK(2, "device %s being configured\n", fore200e->name); | |
594 | ||
595 | if ((pci_dev->irq == 0) || (pci_dev->irq == 0xFF)) { | |
596 | printk(FORE200E "incorrect IRQ setting - misconfigured PCI-PCI bridge?\n"); | |
597 | return -EIO; | |
598 | } | |
599 | ||
600 | pci_read_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, &master_ctrl); | |
601 | ||
602 | master_ctrl = master_ctrl | |
603 | #if defined(__BIG_ENDIAN) | |
604 | /* request the PCA board to convert the endianess of slave RAM accesses */ | |
605 | | PCA200E_CTRL_CONVERT_ENDIAN | |
606 | #endif | |
607 | #if 0 | |
608 | | PCA200E_CTRL_DIS_CACHE_RD | |
609 | | PCA200E_CTRL_DIS_WRT_INVAL | |
610 | | PCA200E_CTRL_ENA_CONT_REQ_MODE | |
611 | | PCA200E_CTRL_2_CACHE_WRT_INVAL | |
612 | #endif | |
613 | | PCA200E_CTRL_LARGE_PCI_BURSTS; | |
614 | ||
615 | pci_write_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, master_ctrl); | |
616 | ||
617 | /* raise latency from 32 (default) to 192, as this seems to prevent NIC | |
618 | lockups (under heavy rx loads) due to continuous 'FIFO OUT full' condition. | |
619 | this may impact the performances of other PCI devices on the same bus, though */ | |
620 | latency = 192; | |
621 | pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); | |
622 | ||
623 | fore200e->state = FORE200E_STATE_CONFIGURE; | |
624 | return 0; | |
625 | } | |
626 | ||
627 | ||
628 | static int __init | |
629 | fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom) | |
630 | { | |
631 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
632 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | |
633 | struct prom_opcode opcode; | |
634 | int ok; | |
635 | u32 prom_dma; | |
636 | ||
637 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | |
638 | ||
639 | opcode.opcode = OPCODE_GET_PROM; | |
640 | opcode.pad = 0; | |
641 | ||
642 | prom_dma = fore200e->bus->dma_map(fore200e, prom, sizeof(struct prom_data), DMA_FROM_DEVICE); | |
643 | ||
644 | fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr); | |
645 | ||
646 | *entry->status = STATUS_PENDING; | |
647 | ||
648 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.prom_block.opcode); | |
649 | ||
650 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | |
651 | ||
652 | *entry->status = STATUS_FREE; | |
653 | ||
654 | fore200e->bus->dma_unmap(fore200e, prom_dma, sizeof(struct prom_data), DMA_FROM_DEVICE); | |
655 | ||
656 | if (ok == 0) { | |
657 | printk(FORE200E "unable to get PROM data from device %s\n", fore200e->name); | |
658 | return -EIO; | |
659 | } | |
660 | ||
661 | #if defined(__BIG_ENDIAN) | |
662 | ||
663 | #define swap_here(addr) (*((u32*)(addr)) = swab32( *((u32*)(addr)) )) | |
664 | ||
665 | /* MAC address is stored as little-endian */ | |
666 | swap_here(&prom->mac_addr[0]); | |
667 | swap_here(&prom->mac_addr[4]); | |
668 | #endif | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | ||
674 | static int | |
675 | fore200e_pca_proc_read(struct fore200e* fore200e, char *page) | |
676 | { | |
677 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; | |
678 | ||
679 | return sprintf(page, " PCI bus/slot/function:\t%d/%d/%d\n", | |
680 | pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); | |
681 | } | |
682 | ||
683 | #endif /* CONFIG_ATM_FORE200E_PCA */ | |
684 | ||
685 | ||
686 | #ifdef CONFIG_ATM_FORE200E_SBA | |
687 | ||
688 | static u32 | |
689 | fore200e_sba_read(volatile u32 __iomem *addr) | |
690 | { | |
691 | return sbus_readl(addr); | |
692 | } | |
693 | ||
694 | ||
695 | static void | |
696 | fore200e_sba_write(u32 val, volatile u32 __iomem *addr) | |
697 | { | |
698 | sbus_writel(val, addr); | |
699 | } | |
700 | ||
701 | ||
702 | static u32 | |
703 | fore200e_sba_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction) | |
704 | { | |
705 | u32 dma_addr = sbus_map_single((struct sbus_dev*)fore200e->bus_dev, virt_addr, size, direction); | |
706 | ||
707 | DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08x\n", | |
708 | virt_addr, size, direction, dma_addr); | |
709 | ||
710 | return dma_addr; | |
711 | } | |
712 | ||
713 | ||
714 | static void | |
715 | fore200e_sba_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
716 | { | |
717 | DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,\n", | |
718 | dma_addr, size, direction); | |
719 | ||
720 | sbus_unmap_single((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
721 | } | |
722 | ||
723 | ||
724 | static void | |
725 | fore200e_sba_dma_sync_for_cpu(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
726 | { | |
727 | DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | |
728 | ||
729 | sbus_dma_sync_single_for_cpu((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
730 | } | |
731 | ||
732 | static void | |
733 | fore200e_sba_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | |
734 | { | |
735 | DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | |
736 | ||
737 | sbus_dma_sync_single_for_device((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | |
738 | } | |
739 | ||
740 | ||
741 | /* allocate a DVMA consistent chunk of memory intended to act as a communication mechanism | |
742 | (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */ | |
743 | ||
744 | static int | |
745 | fore200e_sba_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, | |
746 | int size, int nbr, int alignment) | |
747 | { | |
748 | chunk->alloc_size = chunk->align_size = size * nbr; | |
749 | ||
750 | /* returned chunks are page-aligned */ | |
751 | chunk->alloc_addr = sbus_alloc_consistent((struct sbus_dev*)fore200e->bus_dev, | |
752 | chunk->alloc_size, | |
753 | &chunk->dma_addr); | |
754 | ||
755 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) | |
756 | return -ENOMEM; | |
757 | ||
758 | chunk->align_addr = chunk->alloc_addr; | |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
763 | ||
764 | /* free a DVMA consistent chunk of memory */ | |
765 | ||
766 | static void | |
767 | fore200e_sba_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | |
768 | { | |
769 | sbus_free_consistent((struct sbus_dev*)fore200e->bus_dev, | |
770 | chunk->alloc_size, | |
771 | chunk->alloc_addr, | |
772 | chunk->dma_addr); | |
773 | } | |
774 | ||
775 | ||
776 | static void | |
777 | fore200e_sba_irq_enable(struct fore200e* fore200e) | |
778 | { | |
779 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; | |
780 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_ENA, fore200e->regs.sba.hcr); | |
781 | } | |
782 | ||
783 | ||
784 | static int | |
785 | fore200e_sba_irq_check(struct fore200e* fore200e) | |
786 | { | |
787 | return fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_INTR_REQ; | |
788 | } | |
789 | ||
790 | ||
791 | static void | |
792 | fore200e_sba_irq_ack(struct fore200e* fore200e) | |
793 | { | |
794 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; | |
795 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_CLR, fore200e->regs.sba.hcr); | |
796 | } | |
797 | ||
798 | ||
799 | static void | |
800 | fore200e_sba_reset(struct fore200e* fore200e) | |
801 | { | |
802 | fore200e->bus->write(SBA200E_HCR_RESET, fore200e->regs.sba.hcr); | |
803 | fore200e_spin(10); | |
804 | fore200e->bus->write(0, fore200e->regs.sba.hcr); | |
805 | } | |
806 | ||
807 | ||
808 | static int __init | |
809 | fore200e_sba_map(struct fore200e* fore200e) | |
810 | { | |
811 | struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev; | |
812 | unsigned int bursts; | |
813 | ||
814 | /* gain access to the SBA specific registers */ | |
815 | fore200e->regs.sba.hcr = sbus_ioremap(&sbus_dev->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR"); | |
816 | fore200e->regs.sba.bsr = sbus_ioremap(&sbus_dev->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR"); | |
817 | fore200e->regs.sba.isr = sbus_ioremap(&sbus_dev->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR"); | |
818 | fore200e->virt_base = sbus_ioremap(&sbus_dev->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM"); | |
819 | ||
820 | if (fore200e->virt_base == NULL) { | |
821 | printk(FORE200E "unable to map RAM of device %s\n", fore200e->name); | |
822 | return -EFAULT; | |
823 | } | |
824 | ||
825 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); | |
826 | ||
827 | fore200e->bus->write(0x02, fore200e->regs.sba.isr); /* XXX hardwired interrupt level */ | |
828 | ||
829 | /* get the supported DVMA burst sizes */ | |
830 | bursts = prom_getintdefault(sbus_dev->bus->prom_node, "burst-sizes", 0x00); | |
831 | ||
832 | if (sbus_can_dma_64bit(sbus_dev)) | |
833 | sbus_set_sbus64(sbus_dev, bursts); | |
834 | ||
835 | fore200e->state = FORE200E_STATE_MAP; | |
836 | return 0; | |
837 | } | |
838 | ||
839 | ||
840 | static void | |
841 | fore200e_sba_unmap(struct fore200e* fore200e) | |
842 | { | |
843 | sbus_iounmap(fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH); | |
844 | sbus_iounmap(fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH); | |
845 | sbus_iounmap(fore200e->regs.sba.isr, SBA200E_ISR_LENGTH); | |
846 | sbus_iounmap(fore200e->virt_base, SBA200E_RAM_LENGTH); | |
847 | } | |
848 | ||
849 | ||
850 | static int __init | |
851 | fore200e_sba_configure(struct fore200e* fore200e) | |
852 | { | |
853 | fore200e->state = FORE200E_STATE_CONFIGURE; | |
854 | return 0; | |
855 | } | |
856 | ||
857 | ||
858 | static struct fore200e* __init | |
859 | fore200e_sba_detect(const struct fore200e_bus* bus, int index) | |
860 | { | |
861 | struct fore200e* fore200e; | |
862 | struct sbus_bus* sbus_bus; | |
863 | struct sbus_dev* sbus_dev = NULL; | |
864 | ||
865 | unsigned int count = 0; | |
866 | ||
867 | for_each_sbus (sbus_bus) { | |
868 | for_each_sbusdev (sbus_dev, sbus_bus) { | |
869 | if (strcmp(sbus_dev->prom_name, SBA200E_PROM_NAME) == 0) { | |
870 | if (count >= index) | |
871 | goto found; | |
872 | count++; | |
873 | } | |
874 | } | |
875 | } | |
876 | return NULL; | |
877 | ||
878 | found: | |
879 | if (sbus_dev->num_registers != 4) { | |
880 | printk(FORE200E "this %s device has %d instead of 4 registers\n", | |
881 | bus->model_name, sbus_dev->num_registers); | |
882 | return NULL; | |
883 | } | |
884 | ||
885 | fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL); | |
886 | if (fore200e == NULL) | |
887 | return NULL; | |
888 | ||
889 | fore200e->bus = bus; | |
890 | fore200e->bus_dev = sbus_dev; | |
891 | fore200e->irq = sbus_dev->irqs[ 0 ]; | |
892 | ||
893 | fore200e->phys_base = (unsigned long)sbus_dev; | |
894 | ||
895 | sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1); | |
896 | ||
897 | return fore200e; | |
898 | } | |
899 | ||
900 | ||
901 | static int __init | |
902 | fore200e_sba_prom_read(struct fore200e* fore200e, struct prom_data* prom) | |
903 | { | |
904 | struct sbus_dev* sbus_dev = (struct sbus_dev*) fore200e->bus_dev; | |
905 | int len; | |
906 | ||
907 | len = prom_getproperty(sbus_dev->prom_node, "macaddrlo2", &prom->mac_addr[ 4 ], 4); | |
908 | if (len < 0) | |
909 | return -EBUSY; | |
910 | ||
911 | len = prom_getproperty(sbus_dev->prom_node, "macaddrhi4", &prom->mac_addr[ 2 ], 4); | |
912 | if (len < 0) | |
913 | return -EBUSY; | |
914 | ||
915 | prom_getproperty(sbus_dev->prom_node, "serialnumber", | |
916 | (char*)&prom->serial_number, sizeof(prom->serial_number)); | |
917 | ||
918 | prom_getproperty(sbus_dev->prom_node, "promversion", | |
919 | (char*)&prom->hw_revision, sizeof(prom->hw_revision)); | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
924 | ||
925 | static int | |
926 | fore200e_sba_proc_read(struct fore200e* fore200e, char *page) | |
927 | { | |
928 | struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev; | |
929 | ||
930 | return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n", sbus_dev->slot, sbus_dev->prom_name); | |
931 | } | |
932 | #endif /* CONFIG_ATM_FORE200E_SBA */ | |
933 | ||
934 | ||
935 | static void | |
936 | fore200e_tx_irq(struct fore200e* fore200e) | |
937 | { | |
938 | struct host_txq* txq = &fore200e->host_txq; | |
939 | struct host_txq_entry* entry; | |
940 | struct atm_vcc* vcc; | |
941 | struct fore200e_vc_map* vc_map; | |
942 | ||
943 | if (fore200e->host_txq.txing == 0) | |
944 | return; | |
945 | ||
946 | for (;;) { | |
947 | ||
948 | entry = &txq->host_entry[ txq->tail ]; | |
949 | ||
950 | if ((*entry->status & STATUS_COMPLETE) == 0) { | |
951 | break; | |
952 | } | |
953 | ||
954 | DPRINTK(3, "TX COMPLETED: entry = %p [tail = %d], vc_map = %p, skb = %p\n", | |
955 | entry, txq->tail, entry->vc_map, entry->skb); | |
956 | ||
957 | /* free copy of misaligned data */ | |
a2c1aa54 | 958 | kfree(entry->data); |
1da177e4 LT |
959 | |
960 | /* remove DMA mapping */ | |
961 | fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length, | |
962 | DMA_TO_DEVICE); | |
963 | ||
964 | vc_map = entry->vc_map; | |
965 | ||
966 | /* vcc closed since the time the entry was submitted for tx? */ | |
967 | if ((vc_map->vcc == NULL) || | |
968 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { | |
969 | ||
970 | DPRINTK(1, "no ready vcc found for PDU sent on device %d\n", | |
971 | fore200e->atm_dev->number); | |
972 | ||
973 | dev_kfree_skb_any(entry->skb); | |
974 | } | |
975 | else { | |
976 | ASSERT(vc_map->vcc); | |
977 | ||
978 | /* vcc closed then immediately re-opened? */ | |
979 | if (vc_map->incarn != entry->incarn) { | |
980 | ||
981 | /* when a vcc is closed, some PDUs may be still pending in the tx queue. | |
982 | if the same vcc is immediately re-opened, those pending PDUs must | |
983 | not be popped after the completion of their emission, as they refer | |
984 | to the prior incarnation of that vcc. otherwise, sk_atm(vcc)->sk_wmem_alloc | |
985 | would be decremented by the size of the (unrelated) skb, possibly | |
986 | leading to a negative sk->sk_wmem_alloc count, ultimately freezing the vcc. | |
987 | we thus bind the tx entry to the current incarnation of the vcc | |
988 | when the entry is submitted for tx. When the tx later completes, | |
989 | if the incarnation number of the tx entry does not match the one | |
990 | of the vcc, then this implies that the vcc has been closed then re-opened. | |
991 | we thus just drop the skb here. */ | |
992 | ||
993 | DPRINTK(1, "vcc closed-then-re-opened; dropping PDU sent on device %d\n", | |
994 | fore200e->atm_dev->number); | |
995 | ||
996 | dev_kfree_skb_any(entry->skb); | |
997 | } | |
998 | else { | |
999 | vcc = vc_map->vcc; | |
1000 | ASSERT(vcc); | |
1001 | ||
1002 | /* notify tx completion */ | |
1003 | if (vcc->pop) { | |
1004 | vcc->pop(vcc, entry->skb); | |
1005 | } | |
1006 | else { | |
1007 | dev_kfree_skb_any(entry->skb); | |
1008 | } | |
1009 | #if 1 | |
1010 | /* race fixed by the above incarnation mechanism, but... */ | |
1011 | if (atomic_read(&sk_atm(vcc)->sk_wmem_alloc) < 0) { | |
1012 | atomic_set(&sk_atm(vcc)->sk_wmem_alloc, 0); | |
1013 | } | |
1014 | #endif | |
1015 | /* check error condition */ | |
1016 | if (*entry->status & STATUS_ERROR) | |
1017 | atomic_inc(&vcc->stats->tx_err); | |
1018 | else | |
1019 | atomic_inc(&vcc->stats->tx); | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | *entry->status = STATUS_FREE; | |
1024 | ||
1025 | fore200e->host_txq.txing--; | |
1026 | ||
1027 | FORE200E_NEXT_ENTRY(txq->tail, QUEUE_SIZE_TX); | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | ||
1032 | #ifdef FORE200E_BSQ_DEBUG | |
1033 | int bsq_audit(int where, struct host_bsq* bsq, int scheme, int magn) | |
1034 | { | |
1035 | struct buffer* buffer; | |
1036 | int count = 0; | |
1037 | ||
1038 | buffer = bsq->freebuf; | |
1039 | while (buffer) { | |
1040 | ||
1041 | if (buffer->supplied) { | |
1042 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld supplied but in free list!\n", | |
1043 | where, scheme, magn, buffer->index); | |
1044 | } | |
1045 | ||
1046 | if (buffer->magn != magn) { | |
1047 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected magn = %d\n", | |
1048 | where, scheme, magn, buffer->index, buffer->magn); | |
1049 | } | |
1050 | ||
1051 | if (buffer->scheme != scheme) { | |
1052 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected scheme = %d\n", | |
1053 | where, scheme, magn, buffer->index, buffer->scheme); | |
1054 | } | |
1055 | ||
1056 | if ((buffer->index < 0) || (buffer->index >= fore200e_rx_buf_nbr[ scheme ][ magn ])) { | |
1057 | printk(FORE200E "bsq_audit(%d): queue %d.%d, out of range buffer index = %ld !\n", | |
1058 | where, scheme, magn, buffer->index); | |
1059 | } | |
1060 | ||
1061 | count++; | |
1062 | buffer = buffer->next; | |
1063 | } | |
1064 | ||
1065 | if (count != bsq->freebuf_count) { | |
1066 | printk(FORE200E "bsq_audit(%d): queue %d.%d, %d bufs in free list, but freebuf_count = %d\n", | |
1067 | where, scheme, magn, count, bsq->freebuf_count); | |
1068 | } | |
1069 | return 0; | |
1070 | } | |
1071 | #endif | |
1072 | ||
1073 | ||
1074 | static void | |
1075 | fore200e_supply(struct fore200e* fore200e) | |
1076 | { | |
1077 | int scheme, magn, i; | |
1078 | ||
1079 | struct host_bsq* bsq; | |
1080 | struct host_bsq_entry* entry; | |
1081 | struct buffer* buffer; | |
1082 | ||
1083 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | |
1084 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | |
1085 | ||
1086 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | |
1087 | ||
1088 | #ifdef FORE200E_BSQ_DEBUG | |
1089 | bsq_audit(1, bsq, scheme, magn); | |
1090 | #endif | |
1091 | while (bsq->freebuf_count >= RBD_BLK_SIZE) { | |
1092 | ||
1093 | DPRINTK(2, "supplying %d rx buffers to queue %d / %d, freebuf_count = %d\n", | |
1094 | RBD_BLK_SIZE, scheme, magn, bsq->freebuf_count); | |
1095 | ||
1096 | entry = &bsq->host_entry[ bsq->head ]; | |
1097 | ||
1098 | for (i = 0; i < RBD_BLK_SIZE; i++) { | |
1099 | ||
1100 | /* take the first buffer in the free buffer list */ | |
1101 | buffer = bsq->freebuf; | |
1102 | if (!buffer) { | |
1103 | printk(FORE200E "no more free bufs in queue %d.%d, but freebuf_count = %d\n", | |
1104 | scheme, magn, bsq->freebuf_count); | |
1105 | return; | |
1106 | } | |
1107 | bsq->freebuf = buffer->next; | |
1108 | ||
1109 | #ifdef FORE200E_BSQ_DEBUG | |
1110 | if (buffer->supplied) | |
1111 | printk(FORE200E "queue %d.%d, buffer %lu already supplied\n", | |
1112 | scheme, magn, buffer->index); | |
1113 | buffer->supplied = 1; | |
1114 | #endif | |
1115 | entry->rbd_block->rbd[ i ].buffer_haddr = buffer->data.dma_addr; | |
1116 | entry->rbd_block->rbd[ i ].handle = FORE200E_BUF2HDL(buffer); | |
1117 | } | |
1118 | ||
1119 | FORE200E_NEXT_ENTRY(bsq->head, QUEUE_SIZE_BS); | |
1120 | ||
1121 | /* decrease accordingly the number of free rx buffers */ | |
1122 | bsq->freebuf_count -= RBD_BLK_SIZE; | |
1123 | ||
1124 | *entry->status = STATUS_PENDING; | |
1125 | fore200e->bus->write(entry->rbd_block_dma, &entry->cp_entry->rbd_block_haddr); | |
1126 | } | |
1127 | } | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | ||
1132 | static int | |
1133 | fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rpd) | |
1134 | { | |
1135 | struct sk_buff* skb; | |
1136 | struct buffer* buffer; | |
1137 | struct fore200e_vcc* fore200e_vcc; | |
1138 | int i, pdu_len = 0; | |
1139 | #ifdef FORE200E_52BYTE_AAL0_SDU | |
1140 | u32 cell_header = 0; | |
1141 | #endif | |
1142 | ||
1143 | ASSERT(vcc); | |
1144 | ||
1145 | fore200e_vcc = FORE200E_VCC(vcc); | |
1146 | ASSERT(fore200e_vcc); | |
1147 | ||
1148 | #ifdef FORE200E_52BYTE_AAL0_SDU | |
1149 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.rxtp.max_sdu == ATM_AAL0_SDU)) { | |
1150 | ||
1151 | cell_header = (rpd->atm_header.gfc << ATM_HDR_GFC_SHIFT) | | |
1152 | (rpd->atm_header.vpi << ATM_HDR_VPI_SHIFT) | | |
1153 | (rpd->atm_header.vci << ATM_HDR_VCI_SHIFT) | | |
1154 | (rpd->atm_header.plt << ATM_HDR_PTI_SHIFT) | | |
1155 | rpd->atm_header.clp; | |
1156 | pdu_len = 4; | |
1157 | } | |
1158 | #endif | |
1159 | ||
1160 | /* compute total PDU length */ | |
1161 | for (i = 0; i < rpd->nseg; i++) | |
1162 | pdu_len += rpd->rsd[ i ].length; | |
1163 | ||
1164 | skb = alloc_skb(pdu_len, GFP_ATOMIC); | |
1165 | if (skb == NULL) { | |
1166 | DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); | |
1167 | ||
1168 | atomic_inc(&vcc->stats->rx_drop); | |
1169 | return -ENOMEM; | |
1170 | } | |
1171 | ||
a61bbcf2 | 1172 | __net_timestamp(skb); |
1da177e4 LT |
1173 | |
1174 | #ifdef FORE200E_52BYTE_AAL0_SDU | |
1175 | if (cell_header) { | |
1176 | *((u32*)skb_put(skb, 4)) = cell_header; | |
1177 | } | |
1178 | #endif | |
1179 | ||
1180 | /* reassemble segments */ | |
1181 | for (i = 0; i < rpd->nseg; i++) { | |
1182 | ||
1183 | /* rebuild rx buffer address from rsd handle */ | |
1184 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); | |
1185 | ||
1186 | /* Make device DMA transfer visible to CPU. */ | |
1187 | fore200e->bus->dma_sync_for_cpu(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); | |
1188 | ||
1189 | memcpy(skb_put(skb, rpd->rsd[ i ].length), buffer->data.align_addr, rpd->rsd[ i ].length); | |
1190 | ||
1191 | /* Now let the device get at it again. */ | |
1192 | fore200e->bus->dma_sync_for_device(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); | |
1193 | } | |
1194 | ||
1195 | DPRINTK(3, "rx skb: len = %d, truesize = %d\n", skb->len, skb->truesize); | |
1196 | ||
1197 | if (pdu_len < fore200e_vcc->rx_min_pdu) | |
1198 | fore200e_vcc->rx_min_pdu = pdu_len; | |
1199 | if (pdu_len > fore200e_vcc->rx_max_pdu) | |
1200 | fore200e_vcc->rx_max_pdu = pdu_len; | |
1201 | fore200e_vcc->rx_pdu++; | |
1202 | ||
1203 | /* push PDU */ | |
1204 | if (atm_charge(vcc, skb->truesize) == 0) { | |
1205 | ||
1206 | DPRINTK(2, "receive buffers saturated for %d.%d.%d - PDU dropped\n", | |
1207 | vcc->itf, vcc->vpi, vcc->vci); | |
1208 | ||
1209 | dev_kfree_skb_any(skb); | |
1210 | ||
1211 | atomic_inc(&vcc->stats->rx_drop); | |
1212 | return -ENOMEM; | |
1213 | } | |
1214 | ||
1215 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | |
1216 | ||
1217 | vcc->push(vcc, skb); | |
1218 | atomic_inc(&vcc->stats->rx); | |
1219 | ||
1220 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | |
1221 | ||
1222 | return 0; | |
1223 | } | |
1224 | ||
1225 | ||
1226 | static void | |
1227 | fore200e_collect_rpd(struct fore200e* fore200e, struct rpd* rpd) | |
1228 | { | |
1229 | struct host_bsq* bsq; | |
1230 | struct buffer* buffer; | |
1231 | int i; | |
1232 | ||
1233 | for (i = 0; i < rpd->nseg; i++) { | |
1234 | ||
1235 | /* rebuild rx buffer address from rsd handle */ | |
1236 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); | |
1237 | ||
1238 | bsq = &fore200e->host_bsq[ buffer->scheme ][ buffer->magn ]; | |
1239 | ||
1240 | #ifdef FORE200E_BSQ_DEBUG | |
1241 | bsq_audit(2, bsq, buffer->scheme, buffer->magn); | |
1242 | ||
1243 | if (buffer->supplied == 0) | |
1244 | printk(FORE200E "queue %d.%d, buffer %ld was not supplied\n", | |
1245 | buffer->scheme, buffer->magn, buffer->index); | |
1246 | buffer->supplied = 0; | |
1247 | #endif | |
1248 | ||
1249 | /* re-insert the buffer into the free buffer list */ | |
1250 | buffer->next = bsq->freebuf; | |
1251 | bsq->freebuf = buffer; | |
1252 | ||
1253 | /* then increment the number of free rx buffers */ | |
1254 | bsq->freebuf_count++; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | ||
1259 | static void | |
1260 | fore200e_rx_irq(struct fore200e* fore200e) | |
1261 | { | |
1262 | struct host_rxq* rxq = &fore200e->host_rxq; | |
1263 | struct host_rxq_entry* entry; | |
1264 | struct atm_vcc* vcc; | |
1265 | struct fore200e_vc_map* vc_map; | |
1266 | ||
1267 | for (;;) { | |
1268 | ||
1269 | entry = &rxq->host_entry[ rxq->head ]; | |
1270 | ||
1271 | /* no more received PDUs */ | |
1272 | if ((*entry->status & STATUS_COMPLETE) == 0) | |
1273 | break; | |
1274 | ||
1275 | vc_map = FORE200E_VC_MAP(fore200e, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | |
1276 | ||
1277 | if ((vc_map->vcc == NULL) || | |
1278 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { | |
1279 | ||
1280 | DPRINTK(1, "no ready VC found for PDU received on %d.%d.%d\n", | |
1281 | fore200e->atm_dev->number, | |
1282 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | |
1283 | } | |
1284 | else { | |
1285 | vcc = vc_map->vcc; | |
1286 | ASSERT(vcc); | |
1287 | ||
1288 | if ((*entry->status & STATUS_ERROR) == 0) { | |
1289 | ||
1290 | fore200e_push_rpd(fore200e, vcc, entry->rpd); | |
1291 | } | |
1292 | else { | |
1293 | DPRINTK(2, "damaged PDU on %d.%d.%d\n", | |
1294 | fore200e->atm_dev->number, | |
1295 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | |
1296 | atomic_inc(&vcc->stats->rx_err); | |
1297 | } | |
1298 | } | |
1299 | ||
1300 | FORE200E_NEXT_ENTRY(rxq->head, QUEUE_SIZE_RX); | |
1301 | ||
1302 | fore200e_collect_rpd(fore200e, entry->rpd); | |
1303 | ||
1304 | /* rewrite the rpd address to ack the received PDU */ | |
1305 | fore200e->bus->write(entry->rpd_dma, &entry->cp_entry->rpd_haddr); | |
1306 | *entry->status = STATUS_FREE; | |
1307 | ||
1308 | fore200e_supply(fore200e); | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | ||
1313 | #ifndef FORE200E_USE_TASKLET | |
1314 | static void | |
1315 | fore200e_irq(struct fore200e* fore200e) | |
1316 | { | |
1317 | unsigned long flags; | |
1318 | ||
1319 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1320 | fore200e_rx_irq(fore200e); | |
1321 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1322 | ||
1323 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1324 | fore200e_tx_irq(fore200e); | |
1325 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1326 | } | |
1327 | #endif | |
1328 | ||
1329 | ||
1330 | static irqreturn_t | |
1331 | fore200e_interrupt(int irq, void* dev, struct pt_regs* regs) | |
1332 | { | |
1333 | struct fore200e* fore200e = FORE200E_DEV((struct atm_dev*)dev); | |
1334 | ||
1335 | if (fore200e->bus->irq_check(fore200e) == 0) { | |
1336 | ||
1337 | DPRINTK(3, "interrupt NOT triggered by device %d\n", fore200e->atm_dev->number); | |
1338 | return IRQ_NONE; | |
1339 | } | |
1340 | DPRINTK(3, "interrupt triggered by device %d\n", fore200e->atm_dev->number); | |
1341 | ||
1342 | #ifdef FORE200E_USE_TASKLET | |
1343 | tasklet_schedule(&fore200e->tx_tasklet); | |
1344 | tasklet_schedule(&fore200e->rx_tasklet); | |
1345 | #else | |
1346 | fore200e_irq(fore200e); | |
1347 | #endif | |
1348 | ||
1349 | fore200e->bus->irq_ack(fore200e); | |
1350 | return IRQ_HANDLED; | |
1351 | } | |
1352 | ||
1353 | ||
1354 | #ifdef FORE200E_USE_TASKLET | |
1355 | static void | |
1356 | fore200e_tx_tasklet(unsigned long data) | |
1357 | { | |
1358 | struct fore200e* fore200e = (struct fore200e*) data; | |
1359 | unsigned long flags; | |
1360 | ||
1361 | DPRINTK(3, "tx tasklet scheduled for device %d\n", fore200e->atm_dev->number); | |
1362 | ||
1363 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1364 | fore200e_tx_irq(fore200e); | |
1365 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1366 | } | |
1367 | ||
1368 | ||
1369 | static void | |
1370 | fore200e_rx_tasklet(unsigned long data) | |
1371 | { | |
1372 | struct fore200e* fore200e = (struct fore200e*) data; | |
1373 | unsigned long flags; | |
1374 | ||
1375 | DPRINTK(3, "rx tasklet scheduled for device %d\n", fore200e->atm_dev->number); | |
1376 | ||
1377 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1378 | fore200e_rx_irq((struct fore200e*) data); | |
1379 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1380 | } | |
1381 | #endif | |
1382 | ||
1383 | ||
1384 | static int | |
1385 | fore200e_select_scheme(struct atm_vcc* vcc) | |
1386 | { | |
1387 | /* fairly balance the VCs over (identical) buffer schemes */ | |
1388 | int scheme = vcc->vci % 2 ? BUFFER_SCHEME_ONE : BUFFER_SCHEME_TWO; | |
1389 | ||
1390 | DPRINTK(1, "VC %d.%d.%d uses buffer scheme %d\n", | |
1391 | vcc->itf, vcc->vpi, vcc->vci, scheme); | |
1392 | ||
1393 | return scheme; | |
1394 | } | |
1395 | ||
1396 | ||
1397 | static int | |
1398 | fore200e_activate_vcin(struct fore200e* fore200e, int activate, struct atm_vcc* vcc, int mtu) | |
1399 | { | |
1400 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
1401 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | |
1402 | struct activate_opcode activ_opcode; | |
1403 | struct deactivate_opcode deactiv_opcode; | |
1404 | struct vpvc vpvc; | |
1405 | int ok; | |
1406 | enum fore200e_aal aal = fore200e_atm2fore_aal(vcc->qos.aal); | |
1407 | ||
1408 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | |
1409 | ||
1410 | if (activate) { | |
1411 | FORE200E_VCC(vcc)->scheme = fore200e_select_scheme(vcc); | |
1412 | ||
1413 | activ_opcode.opcode = OPCODE_ACTIVATE_VCIN; | |
1414 | activ_opcode.aal = aal; | |
1415 | activ_opcode.scheme = FORE200E_VCC(vcc)->scheme; | |
1416 | activ_opcode.pad = 0; | |
1417 | } | |
1418 | else { | |
1419 | deactiv_opcode.opcode = OPCODE_DEACTIVATE_VCIN; | |
1420 | deactiv_opcode.pad = 0; | |
1421 | } | |
1422 | ||
1423 | vpvc.vci = vcc->vci; | |
1424 | vpvc.vpi = vcc->vpi; | |
1425 | ||
1426 | *entry->status = STATUS_PENDING; | |
1427 | ||
1428 | if (activate) { | |
1429 | ||
1430 | #ifdef FORE200E_52BYTE_AAL0_SDU | |
1431 | mtu = 48; | |
1432 | #endif | |
1433 | /* the MTU is not used by the cp, except in the case of AAL0 */ | |
1434 | fore200e->bus->write(mtu, &entry->cp_entry->cmd.activate_block.mtu); | |
1435 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.vpvc); | |
1436 | fore200e->bus->write(*(u32*)&activ_opcode, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.opcode); | |
1437 | } | |
1438 | else { | |
1439 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.vpvc); | |
1440 | fore200e->bus->write(*(u32*)&deactiv_opcode, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.opcode); | |
1441 | } | |
1442 | ||
1443 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | |
1444 | ||
1445 | *entry->status = STATUS_FREE; | |
1446 | ||
1447 | if (ok == 0) { | |
1448 | printk(FORE200E "unable to %s VC %d.%d.%d\n", | |
1449 | activate ? "open" : "close", vcc->itf, vcc->vpi, vcc->vci); | |
1450 | return -EIO; | |
1451 | } | |
1452 | ||
1453 | DPRINTK(1, "VC %d.%d.%d %sed\n", vcc->itf, vcc->vpi, vcc->vci, | |
1454 | activate ? "open" : "clos"); | |
1455 | ||
1456 | return 0; | |
1457 | } | |
1458 | ||
1459 | ||
1460 | #define FORE200E_MAX_BACK2BACK_CELLS 255 /* XXX depends on CDVT */ | |
1461 | ||
1462 | static void | |
1463 | fore200e_rate_ctrl(struct atm_qos* qos, struct tpd_rate* rate) | |
1464 | { | |
1465 | if (qos->txtp.max_pcr < ATM_OC3_PCR) { | |
1466 | ||
1467 | /* compute the data cells to idle cells ratio from the tx PCR */ | |
1468 | rate->data_cells = qos->txtp.max_pcr * FORE200E_MAX_BACK2BACK_CELLS / ATM_OC3_PCR; | |
1469 | rate->idle_cells = FORE200E_MAX_BACK2BACK_CELLS - rate->data_cells; | |
1470 | } | |
1471 | else { | |
1472 | /* disable rate control */ | |
1473 | rate->data_cells = rate->idle_cells = 0; | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | ||
1478 | static int | |
1479 | fore200e_open(struct atm_vcc *vcc) | |
1480 | { | |
1481 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | |
1482 | struct fore200e_vcc* fore200e_vcc; | |
1483 | struct fore200e_vc_map* vc_map; | |
1484 | unsigned long flags; | |
1485 | int vci = vcc->vci; | |
1486 | short vpi = vcc->vpi; | |
1487 | ||
1488 | ASSERT((vpi >= 0) && (vpi < 1<<FORE200E_VPI_BITS)); | |
1489 | ASSERT((vci >= 0) && (vci < 1<<FORE200E_VCI_BITS)); | |
1490 | ||
1491 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1492 | ||
1493 | vc_map = FORE200E_VC_MAP(fore200e, vpi, vci); | |
1494 | if (vc_map->vcc) { | |
1495 | ||
1496 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1497 | ||
1498 | printk(FORE200E "VC %d.%d.%d already in use\n", | |
1499 | fore200e->atm_dev->number, vpi, vci); | |
1500 | ||
1501 | return -EINVAL; | |
1502 | } | |
1503 | ||
1504 | vc_map->vcc = vcc; | |
1505 | ||
1506 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1507 | ||
1508 | fore200e_vcc = fore200e_kmalloc(sizeof(struct fore200e_vcc), GFP_ATOMIC); | |
1509 | if (fore200e_vcc == NULL) { | |
1510 | vc_map->vcc = NULL; | |
1511 | return -ENOMEM; | |
1512 | } | |
1513 | ||
1514 | DPRINTK(2, "opening %d.%d.%d:%d QoS = (tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " | |
1515 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d)\n", | |
1516 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | |
1517 | fore200e_traffic_class[ vcc->qos.txtp.traffic_class ], | |
1518 | vcc->qos.txtp.min_pcr, vcc->qos.txtp.max_pcr, vcc->qos.txtp.max_cdv, vcc->qos.txtp.max_sdu, | |
1519 | fore200e_traffic_class[ vcc->qos.rxtp.traffic_class ], | |
1520 | vcc->qos.rxtp.min_pcr, vcc->qos.rxtp.max_pcr, vcc->qos.rxtp.max_cdv, vcc->qos.rxtp.max_sdu); | |
1521 | ||
1522 | /* pseudo-CBR bandwidth requested? */ | |
1523 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | |
1524 | ||
1525 | down(&fore200e->rate_sf); | |
1526 | if (fore200e->available_cell_rate < vcc->qos.txtp.max_pcr) { | |
1527 | up(&fore200e->rate_sf); | |
1528 | ||
1529 | fore200e_kfree(fore200e_vcc); | |
1530 | vc_map->vcc = NULL; | |
1531 | return -EAGAIN; | |
1532 | } | |
1533 | ||
1534 | /* reserve bandwidth */ | |
1535 | fore200e->available_cell_rate -= vcc->qos.txtp.max_pcr; | |
1536 | up(&fore200e->rate_sf); | |
1537 | } | |
1538 | ||
1539 | vcc->itf = vcc->dev->number; | |
1540 | ||
1541 | set_bit(ATM_VF_PARTIAL,&vcc->flags); | |
1542 | set_bit(ATM_VF_ADDR, &vcc->flags); | |
1543 | ||
1544 | vcc->dev_data = fore200e_vcc; | |
1545 | ||
1546 | if (fore200e_activate_vcin(fore200e, 1, vcc, vcc->qos.rxtp.max_sdu) < 0) { | |
1547 | ||
1548 | vc_map->vcc = NULL; | |
1549 | ||
1550 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
1551 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); | |
1552 | ||
1553 | vcc->dev_data = NULL; | |
1554 | ||
1555 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | |
1556 | ||
1557 | fore200e_kfree(fore200e_vcc); | |
1558 | return -EINVAL; | |
1559 | } | |
1560 | ||
1561 | /* compute rate control parameters */ | |
1562 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | |
1563 | ||
1564 | fore200e_rate_ctrl(&vcc->qos, &fore200e_vcc->rate); | |
1565 | set_bit(ATM_VF_HASQOS, &vcc->flags); | |
1566 | ||
1567 | DPRINTK(3, "tx on %d.%d.%d:%d, tx PCR = %d, rx PCR = %d, data_cells = %u, idle_cells = %u\n", | |
1568 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | |
1569 | vcc->qos.txtp.max_pcr, vcc->qos.rxtp.max_pcr, | |
1570 | fore200e_vcc->rate.data_cells, fore200e_vcc->rate.idle_cells); | |
1571 | } | |
1572 | ||
1573 | fore200e_vcc->tx_min_pdu = fore200e_vcc->rx_min_pdu = MAX_PDU_SIZE + 1; | |
1574 | fore200e_vcc->tx_max_pdu = fore200e_vcc->rx_max_pdu = 0; | |
1575 | fore200e_vcc->tx_pdu = fore200e_vcc->rx_pdu = 0; | |
1576 | ||
1577 | /* new incarnation of the vcc */ | |
1578 | vc_map->incarn = ++fore200e->incarn_count; | |
1579 | ||
1580 | /* VC unusable before this flag is set */ | |
1581 | set_bit(ATM_VF_READY, &vcc->flags); | |
1582 | ||
1583 | return 0; | |
1584 | } | |
1585 | ||
1586 | ||
1587 | static void | |
1588 | fore200e_close(struct atm_vcc* vcc) | |
1589 | { | |
1590 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | |
1591 | struct fore200e_vcc* fore200e_vcc; | |
1592 | struct fore200e_vc_map* vc_map; | |
1593 | unsigned long flags; | |
1594 | ||
1595 | ASSERT(vcc); | |
1596 | ASSERT((vcc->vpi >= 0) && (vcc->vpi < 1<<FORE200E_VPI_BITS)); | |
1597 | ASSERT((vcc->vci >= 0) && (vcc->vci < 1<<FORE200E_VCI_BITS)); | |
1598 | ||
1599 | DPRINTK(2, "closing %d.%d.%d:%d\n", vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal)); | |
1600 | ||
1601 | clear_bit(ATM_VF_READY, &vcc->flags); | |
1602 | ||
1603 | fore200e_activate_vcin(fore200e, 0, vcc, 0); | |
1604 | ||
1605 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1606 | ||
1607 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); | |
1608 | ||
1609 | /* the vc is no longer considered as "in use" by fore200e_open() */ | |
1610 | vc_map->vcc = NULL; | |
1611 | ||
1612 | vcc->itf = vcc->vci = vcc->vpi = 0; | |
1613 | ||
1614 | fore200e_vcc = FORE200E_VCC(vcc); | |
1615 | vcc->dev_data = NULL; | |
1616 | ||
1617 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1618 | ||
1619 | /* release reserved bandwidth, if any */ | |
1620 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | |
1621 | ||
1622 | down(&fore200e->rate_sf); | |
1623 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | |
1624 | up(&fore200e->rate_sf); | |
1625 | ||
1626 | clear_bit(ATM_VF_HASQOS, &vcc->flags); | |
1627 | } | |
1628 | ||
1629 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
1630 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); | |
1631 | ||
1632 | ASSERT(fore200e_vcc); | |
1633 | fore200e_kfree(fore200e_vcc); | |
1634 | } | |
1635 | ||
1636 | ||
1637 | static int | |
1638 | fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb) | |
1639 | { | |
1640 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | |
1641 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); | |
1642 | struct fore200e_vc_map* vc_map; | |
1643 | struct host_txq* txq = &fore200e->host_txq; | |
1644 | struct host_txq_entry* entry; | |
1645 | struct tpd* tpd; | |
1646 | struct tpd_haddr tpd_haddr; | |
1647 | int retry = CONFIG_ATM_FORE200E_TX_RETRY; | |
1648 | int tx_copy = 0; | |
1649 | int tx_len = skb->len; | |
1650 | u32* cell_header = NULL; | |
1651 | unsigned char* skb_data; | |
1652 | int skb_len; | |
1653 | unsigned char* data; | |
1654 | unsigned long flags; | |
1655 | ||
1656 | ASSERT(vcc); | |
1657 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | |
1658 | ASSERT(fore200e); | |
1659 | ASSERT(fore200e_vcc); | |
1660 | ||
1661 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { | |
1662 | DPRINTK(1, "VC %d.%d.%d not ready for tx\n", vcc->itf, vcc->vpi, vcc->vpi); | |
1663 | dev_kfree_skb_any(skb); | |
1664 | return -EINVAL; | |
1665 | } | |
1666 | ||
1667 | #ifdef FORE200E_52BYTE_AAL0_SDU | |
1668 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.txtp.max_sdu == ATM_AAL0_SDU)) { | |
1669 | cell_header = (u32*) skb->data; | |
1670 | skb_data = skb->data + 4; /* skip 4-byte cell header */ | |
1671 | skb_len = tx_len = skb->len - 4; | |
1672 | ||
1673 | DPRINTK(3, "user-supplied cell header = 0x%08x\n", *cell_header); | |
1674 | } | |
1675 | else | |
1676 | #endif | |
1677 | { | |
1678 | skb_data = skb->data; | |
1679 | skb_len = skb->len; | |
1680 | } | |
1681 | ||
1682 | if (((unsigned long)skb_data) & 0x3) { | |
1683 | ||
1684 | DPRINTK(2, "misaligned tx PDU on device %s\n", fore200e->name); | |
1685 | tx_copy = 1; | |
1686 | tx_len = skb_len; | |
1687 | } | |
1688 | ||
1689 | if ((vcc->qos.aal == ATM_AAL0) && (skb_len % ATM_CELL_PAYLOAD)) { | |
1690 | ||
1691 | /* this simply NUKES the PCA board */ | |
1692 | DPRINTK(2, "incomplete tx AAL0 PDU on device %s\n", fore200e->name); | |
1693 | tx_copy = 1; | |
1694 | tx_len = ((skb_len / ATM_CELL_PAYLOAD) + 1) * ATM_CELL_PAYLOAD; | |
1695 | } | |
1696 | ||
1697 | if (tx_copy) { | |
1698 | data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA); | |
1699 | if (data == NULL) { | |
1700 | if (vcc->pop) { | |
1701 | vcc->pop(vcc, skb); | |
1702 | } | |
1703 | else { | |
1704 | dev_kfree_skb_any(skb); | |
1705 | } | |
1706 | return -ENOMEM; | |
1707 | } | |
1708 | ||
1709 | memcpy(data, skb_data, skb_len); | |
1710 | if (skb_len < tx_len) | |
1711 | memset(data + skb_len, 0x00, tx_len - skb_len); | |
1712 | } | |
1713 | else { | |
1714 | data = skb_data; | |
1715 | } | |
1716 | ||
1717 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); | |
1718 | ASSERT(vc_map->vcc == vcc); | |
1719 | ||
1720 | retry_here: | |
1721 | ||
1722 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
1723 | ||
1724 | entry = &txq->host_entry[ txq->head ]; | |
1725 | ||
1726 | if ((*entry->status != STATUS_FREE) || (txq->txing >= QUEUE_SIZE_TX - 2)) { | |
1727 | ||
1728 | /* try to free completed tx queue entries */ | |
1729 | fore200e_tx_irq(fore200e); | |
1730 | ||
1731 | if (*entry->status != STATUS_FREE) { | |
1732 | ||
1733 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1734 | ||
1735 | /* retry once again? */ | |
1736 | if (--retry > 0) { | |
1737 | udelay(50); | |
1738 | goto retry_here; | |
1739 | } | |
1740 | ||
1741 | atomic_inc(&vcc->stats->tx_err); | |
1742 | ||
1743 | fore200e->tx_sat++; | |
1744 | DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", | |
1745 | fore200e->name, fore200e->cp_queues->heartbeat); | |
1746 | if (vcc->pop) { | |
1747 | vcc->pop(vcc, skb); | |
1748 | } | |
1749 | else { | |
1750 | dev_kfree_skb_any(skb); | |
1751 | } | |
1752 | ||
1753 | if (tx_copy) | |
1754 | kfree(data); | |
1755 | ||
1756 | return -ENOBUFS; | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | entry->incarn = vc_map->incarn; | |
1761 | entry->vc_map = vc_map; | |
1762 | entry->skb = skb; | |
1763 | entry->data = tx_copy ? data : NULL; | |
1764 | ||
1765 | tpd = entry->tpd; | |
1766 | tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, data, tx_len, DMA_TO_DEVICE); | |
1767 | tpd->tsd[ 0 ].length = tx_len; | |
1768 | ||
1769 | FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX); | |
1770 | txq->txing++; | |
1771 | ||
1772 | /* The dma_map call above implies a dma_sync so the device can use it, | |
1773 | * thus no explicit dma_sync call is necessary here. | |
1774 | */ | |
1775 | ||
1776 | DPRINTK(3, "tx on %d.%d.%d:%d, len = %u (%u)\n", | |
1777 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | |
1778 | tpd->tsd[0].length, skb_len); | |
1779 | ||
1780 | if (skb_len < fore200e_vcc->tx_min_pdu) | |
1781 | fore200e_vcc->tx_min_pdu = skb_len; | |
1782 | if (skb_len > fore200e_vcc->tx_max_pdu) | |
1783 | fore200e_vcc->tx_max_pdu = skb_len; | |
1784 | fore200e_vcc->tx_pdu++; | |
1785 | ||
1786 | /* set tx rate control information */ | |
1787 | tpd->rate.data_cells = fore200e_vcc->rate.data_cells; | |
1788 | tpd->rate.idle_cells = fore200e_vcc->rate.idle_cells; | |
1789 | ||
1790 | if (cell_header) { | |
1791 | tpd->atm_header.clp = (*cell_header & ATM_HDR_CLP); | |
1792 | tpd->atm_header.plt = (*cell_header & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT; | |
1793 | tpd->atm_header.vci = (*cell_header & ATM_HDR_VCI_MASK) >> ATM_HDR_VCI_SHIFT; | |
1794 | tpd->atm_header.vpi = (*cell_header & ATM_HDR_VPI_MASK) >> ATM_HDR_VPI_SHIFT; | |
1795 | tpd->atm_header.gfc = (*cell_header & ATM_HDR_GFC_MASK) >> ATM_HDR_GFC_SHIFT; | |
1796 | } | |
1797 | else { | |
1798 | /* set the ATM header, common to all cells conveying the PDU */ | |
1799 | tpd->atm_header.clp = 0; | |
1800 | tpd->atm_header.plt = 0; | |
1801 | tpd->atm_header.vci = vcc->vci; | |
1802 | tpd->atm_header.vpi = vcc->vpi; | |
1803 | tpd->atm_header.gfc = 0; | |
1804 | } | |
1805 | ||
1806 | tpd->spec.length = tx_len; | |
1807 | tpd->spec.nseg = 1; | |
1808 | tpd->spec.aal = fore200e_atm2fore_aal(vcc->qos.aal); | |
1809 | tpd->spec.intr = 1; | |
1810 | ||
1811 | tpd_haddr.size = sizeof(struct tpd) / (1<<TPD_HADDR_SHIFT); /* size is expressed in 32 byte blocks */ | |
1812 | tpd_haddr.pad = 0; | |
1813 | tpd_haddr.haddr = entry->tpd_dma >> TPD_HADDR_SHIFT; /* shift the address, as we are in a bitfield */ | |
1814 | ||
1815 | *entry->status = STATUS_PENDING; | |
1816 | fore200e->bus->write(*(u32*)&tpd_haddr, (u32 __iomem *)&entry->cp_entry->tpd_haddr); | |
1817 | ||
1818 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
1819 | ||
1820 | return 0; | |
1821 | } | |
1822 | ||
1823 | ||
1824 | static int | |
1825 | fore200e_getstats(struct fore200e* fore200e) | |
1826 | { | |
1827 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
1828 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | |
1829 | struct stats_opcode opcode; | |
1830 | int ok; | |
1831 | u32 stats_dma_addr; | |
1832 | ||
1833 | if (fore200e->stats == NULL) { | |
1834 | fore200e->stats = fore200e_kmalloc(sizeof(struct stats), GFP_KERNEL | GFP_DMA); | |
1835 | if (fore200e->stats == NULL) | |
1836 | return -ENOMEM; | |
1837 | } | |
1838 | ||
1839 | stats_dma_addr = fore200e->bus->dma_map(fore200e, fore200e->stats, | |
1840 | sizeof(struct stats), DMA_FROM_DEVICE); | |
1841 | ||
1842 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | |
1843 | ||
1844 | opcode.opcode = OPCODE_GET_STATS; | |
1845 | opcode.pad = 0; | |
1846 | ||
1847 | fore200e->bus->write(stats_dma_addr, &entry->cp_entry->cmd.stats_block.stats_haddr); | |
1848 | ||
1849 | *entry->status = STATUS_PENDING; | |
1850 | ||
1851 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.stats_block.opcode); | |
1852 | ||
1853 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | |
1854 | ||
1855 | *entry->status = STATUS_FREE; | |
1856 | ||
1857 | fore200e->bus->dma_unmap(fore200e, stats_dma_addr, sizeof(struct stats), DMA_FROM_DEVICE); | |
1858 | ||
1859 | if (ok == 0) { | |
1860 | printk(FORE200E "unable to get statistics from device %s\n", fore200e->name); | |
1861 | return -EIO; | |
1862 | } | |
1863 | ||
1864 | return 0; | |
1865 | } | |
1866 | ||
1867 | ||
1868 | static int | |
1869 | fore200e_getsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen) | |
1870 | { | |
1871 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ | |
1872 | ||
1873 | DPRINTK(2, "getsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", | |
1874 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); | |
1875 | ||
1876 | return -EINVAL; | |
1877 | } | |
1878 | ||
1879 | ||
1880 | static int | |
1881 | fore200e_setsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen) | |
1882 | { | |
1883 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ | |
1884 | ||
1885 | DPRINTK(2, "setsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", | |
1886 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); | |
1887 | ||
1888 | return -EINVAL; | |
1889 | } | |
1890 | ||
1891 | ||
1892 | #if 0 /* currently unused */ | |
1893 | static int | |
1894 | fore200e_get_oc3(struct fore200e* fore200e, struct oc3_regs* regs) | |
1895 | { | |
1896 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
1897 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | |
1898 | struct oc3_opcode opcode; | |
1899 | int ok; | |
1900 | u32 oc3_regs_dma_addr; | |
1901 | ||
1902 | oc3_regs_dma_addr = fore200e->bus->dma_map(fore200e, regs, sizeof(struct oc3_regs), DMA_FROM_DEVICE); | |
1903 | ||
1904 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | |
1905 | ||
1906 | opcode.opcode = OPCODE_GET_OC3; | |
1907 | opcode.reg = 0; | |
1908 | opcode.value = 0; | |
1909 | opcode.mask = 0; | |
1910 | ||
1911 | fore200e->bus->write(oc3_regs_dma_addr, &entry->cp_entry->cmd.oc3_block.regs_haddr); | |
1912 | ||
1913 | *entry->status = STATUS_PENDING; | |
1914 | ||
1915 | fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.oc3_block.opcode); | |
1916 | ||
1917 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | |
1918 | ||
1919 | *entry->status = STATUS_FREE; | |
1920 | ||
1921 | fore200e->bus->dma_unmap(fore200e, oc3_regs_dma_addr, sizeof(struct oc3_regs), DMA_FROM_DEVICE); | |
1922 | ||
1923 | if (ok == 0) { | |
1924 | printk(FORE200E "unable to get OC-3 regs of device %s\n", fore200e->name); | |
1925 | return -EIO; | |
1926 | } | |
1927 | ||
1928 | return 0; | |
1929 | } | |
1930 | #endif | |
1931 | ||
1932 | ||
1933 | static int | |
1934 | fore200e_set_oc3(struct fore200e* fore200e, u32 reg, u32 value, u32 mask) | |
1935 | { | |
1936 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
1937 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | |
1938 | struct oc3_opcode opcode; | |
1939 | int ok; | |
1940 | ||
1941 | DPRINTK(2, "set OC-3 reg = 0x%02x, value = 0x%02x, mask = 0x%02x\n", reg, value, mask); | |
1942 | ||
1943 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | |
1944 | ||
1945 | opcode.opcode = OPCODE_SET_OC3; | |
1946 | opcode.reg = reg; | |
1947 | opcode.value = value; | |
1948 | opcode.mask = mask; | |
1949 | ||
1950 | fore200e->bus->write(0, &entry->cp_entry->cmd.oc3_block.regs_haddr); | |
1951 | ||
1952 | *entry->status = STATUS_PENDING; | |
1953 | ||
1954 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.oc3_block.opcode); | |
1955 | ||
1956 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | |
1957 | ||
1958 | *entry->status = STATUS_FREE; | |
1959 | ||
1960 | if (ok == 0) { | |
1961 | printk(FORE200E "unable to set OC-3 reg 0x%02x of device %s\n", reg, fore200e->name); | |
1962 | return -EIO; | |
1963 | } | |
1964 | ||
1965 | return 0; | |
1966 | } | |
1967 | ||
1968 | ||
1969 | static int | |
1970 | fore200e_setloop(struct fore200e* fore200e, int loop_mode) | |
1971 | { | |
1972 | u32 mct_value, mct_mask; | |
1973 | int error; | |
1974 | ||
1975 | if (!capable(CAP_NET_ADMIN)) | |
1976 | return -EPERM; | |
1977 | ||
1978 | switch (loop_mode) { | |
1979 | ||
1980 | case ATM_LM_NONE: | |
1981 | mct_value = 0; | |
1982 | mct_mask = SUNI_MCT_DLE | SUNI_MCT_LLE; | |
1983 | break; | |
1984 | ||
1985 | case ATM_LM_LOC_PHY: | |
1986 | mct_value = mct_mask = SUNI_MCT_DLE; | |
1987 | break; | |
1988 | ||
1989 | case ATM_LM_RMT_PHY: | |
1990 | mct_value = mct_mask = SUNI_MCT_LLE; | |
1991 | break; | |
1992 | ||
1993 | default: | |
1994 | return -EINVAL; | |
1995 | } | |
1996 | ||
1997 | error = fore200e_set_oc3(fore200e, SUNI_MCT, mct_value, mct_mask); | |
1998 | if (error == 0) | |
1999 | fore200e->loop_mode = loop_mode; | |
2000 | ||
2001 | return error; | |
2002 | } | |
2003 | ||
2004 | ||
2005 | static inline unsigned int | |
2006 | fore200e_swap(unsigned int in) | |
2007 | { | |
2008 | #if defined(__LITTLE_ENDIAN) | |
2009 | return swab32(in); | |
2010 | #else | |
2011 | return in; | |
2012 | #endif | |
2013 | } | |
2014 | ||
2015 | ||
2016 | static int | |
2017 | fore200e_fetch_stats(struct fore200e* fore200e, struct sonet_stats __user *arg) | |
2018 | { | |
2019 | struct sonet_stats tmp; | |
2020 | ||
2021 | if (fore200e_getstats(fore200e) < 0) | |
2022 | return -EIO; | |
2023 | ||
2024 | tmp.section_bip = fore200e_swap(fore200e->stats->oc3.section_bip8_errors); | |
2025 | tmp.line_bip = fore200e_swap(fore200e->stats->oc3.line_bip24_errors); | |
2026 | tmp.path_bip = fore200e_swap(fore200e->stats->oc3.path_bip8_errors); | |
2027 | tmp.line_febe = fore200e_swap(fore200e->stats->oc3.line_febe_errors); | |
2028 | tmp.path_febe = fore200e_swap(fore200e->stats->oc3.path_febe_errors); | |
2029 | tmp.corr_hcs = fore200e_swap(fore200e->stats->oc3.corr_hcs_errors); | |
2030 | tmp.uncorr_hcs = fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors); | |
2031 | tmp.tx_cells = fore200e_swap(fore200e->stats->aal0.cells_transmitted) + | |
2032 | fore200e_swap(fore200e->stats->aal34.cells_transmitted) + | |
2033 | fore200e_swap(fore200e->stats->aal5.cells_transmitted); | |
2034 | tmp.rx_cells = fore200e_swap(fore200e->stats->aal0.cells_received) + | |
2035 | fore200e_swap(fore200e->stats->aal34.cells_received) + | |
2036 | fore200e_swap(fore200e->stats->aal5.cells_received); | |
2037 | ||
2038 | if (arg) | |
2039 | return copy_to_user(arg, &tmp, sizeof(struct sonet_stats)) ? -EFAULT : 0; | |
2040 | ||
2041 | return 0; | |
2042 | } | |
2043 | ||
2044 | ||
2045 | static int | |
2046 | fore200e_ioctl(struct atm_dev* dev, unsigned int cmd, void __user * arg) | |
2047 | { | |
2048 | struct fore200e* fore200e = FORE200E_DEV(dev); | |
2049 | ||
2050 | DPRINTK(2, "ioctl cmd = 0x%x (%u), arg = 0x%p (%lu)\n", cmd, cmd, arg, (unsigned long)arg); | |
2051 | ||
2052 | switch (cmd) { | |
2053 | ||
2054 | case SONET_GETSTAT: | |
2055 | return fore200e_fetch_stats(fore200e, (struct sonet_stats __user *)arg); | |
2056 | ||
2057 | case SONET_GETDIAG: | |
2058 | return put_user(0, (int __user *)arg) ? -EFAULT : 0; | |
2059 | ||
2060 | case ATM_SETLOOP: | |
2061 | return fore200e_setloop(fore200e, (int)(unsigned long)arg); | |
2062 | ||
2063 | case ATM_GETLOOP: | |
2064 | return put_user(fore200e->loop_mode, (int __user *)arg) ? -EFAULT : 0; | |
2065 | ||
2066 | case ATM_QUERYLOOP: | |
2067 | return put_user(ATM_LM_LOC_PHY | ATM_LM_RMT_PHY, (int __user *)arg) ? -EFAULT : 0; | |
2068 | } | |
2069 | ||
2070 | return -ENOSYS; /* not implemented */ | |
2071 | } | |
2072 | ||
2073 | ||
2074 | static int | |
2075 | fore200e_change_qos(struct atm_vcc* vcc,struct atm_qos* qos, int flags) | |
2076 | { | |
2077 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); | |
2078 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | |
2079 | ||
2080 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { | |
2081 | DPRINTK(1, "VC %d.%d.%d not ready for QoS change\n", vcc->itf, vcc->vpi, vcc->vpi); | |
2082 | return -EINVAL; | |
2083 | } | |
2084 | ||
2085 | DPRINTK(2, "change_qos %d.%d.%d, " | |
2086 | "(tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " | |
2087 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d), flags = 0x%x\n" | |
2088 | "available_cell_rate = %u", | |
2089 | vcc->itf, vcc->vpi, vcc->vci, | |
2090 | fore200e_traffic_class[ qos->txtp.traffic_class ], | |
2091 | qos->txtp.min_pcr, qos->txtp.max_pcr, qos->txtp.max_cdv, qos->txtp.max_sdu, | |
2092 | fore200e_traffic_class[ qos->rxtp.traffic_class ], | |
2093 | qos->rxtp.min_pcr, qos->rxtp.max_pcr, qos->rxtp.max_cdv, qos->rxtp.max_sdu, | |
2094 | flags, fore200e->available_cell_rate); | |
2095 | ||
2096 | if ((qos->txtp.traffic_class == ATM_CBR) && (qos->txtp.max_pcr > 0)) { | |
2097 | ||
2098 | down(&fore200e->rate_sf); | |
2099 | if (fore200e->available_cell_rate + vcc->qos.txtp.max_pcr < qos->txtp.max_pcr) { | |
2100 | up(&fore200e->rate_sf); | |
2101 | return -EAGAIN; | |
2102 | } | |
2103 | ||
2104 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | |
2105 | fore200e->available_cell_rate -= qos->txtp.max_pcr; | |
2106 | ||
2107 | up(&fore200e->rate_sf); | |
2108 | ||
2109 | memcpy(&vcc->qos, qos, sizeof(struct atm_qos)); | |
2110 | ||
2111 | /* update rate control parameters */ | |
2112 | fore200e_rate_ctrl(qos, &fore200e_vcc->rate); | |
2113 | ||
2114 | set_bit(ATM_VF_HASQOS, &vcc->flags); | |
2115 | ||
2116 | return 0; | |
2117 | } | |
2118 | ||
2119 | return -EINVAL; | |
2120 | } | |
2121 | ||
2122 | ||
c027f5f9 | 2123 | static int __devinit |
1da177e4 LT |
2124 | fore200e_irq_request(struct fore200e* fore200e) |
2125 | { | |
dace1453 | 2126 | if (request_irq(fore200e->irq, fore200e_interrupt, IRQF_SHARED, fore200e->name, fore200e->atm_dev) < 0) { |
1da177e4 LT |
2127 | |
2128 | printk(FORE200E "unable to reserve IRQ %s for device %s\n", | |
2129 | fore200e_irq_itoa(fore200e->irq), fore200e->name); | |
2130 | return -EBUSY; | |
2131 | } | |
2132 | ||
2133 | printk(FORE200E "IRQ %s reserved for device %s\n", | |
2134 | fore200e_irq_itoa(fore200e->irq), fore200e->name); | |
2135 | ||
2136 | #ifdef FORE200E_USE_TASKLET | |
2137 | tasklet_init(&fore200e->tx_tasklet, fore200e_tx_tasklet, (unsigned long)fore200e); | |
2138 | tasklet_init(&fore200e->rx_tasklet, fore200e_rx_tasklet, (unsigned long)fore200e); | |
2139 | #endif | |
2140 | ||
2141 | fore200e->state = FORE200E_STATE_IRQ; | |
2142 | return 0; | |
2143 | } | |
2144 | ||
2145 | ||
c027f5f9 | 2146 | static int __devinit |
1da177e4 LT |
2147 | fore200e_get_esi(struct fore200e* fore200e) |
2148 | { | |
2149 | struct prom_data* prom = fore200e_kmalloc(sizeof(struct prom_data), GFP_KERNEL | GFP_DMA); | |
2150 | int ok, i; | |
2151 | ||
2152 | if (!prom) | |
2153 | return -ENOMEM; | |
2154 | ||
2155 | ok = fore200e->bus->prom_read(fore200e, prom); | |
2156 | if (ok < 0) { | |
2157 | fore200e_kfree(prom); | |
2158 | return -EBUSY; | |
2159 | } | |
2160 | ||
2161 | printk(FORE200E "device %s, rev. %c, S/N: %d, ESI: %02x:%02x:%02x:%02x:%02x:%02x\n", | |
2162 | fore200e->name, | |
2163 | (prom->hw_revision & 0xFF) + '@', /* probably meaningless with SBA boards */ | |
2164 | prom->serial_number & 0xFFFF, | |
2165 | prom->mac_addr[ 2 ], prom->mac_addr[ 3 ], prom->mac_addr[ 4 ], | |
2166 | prom->mac_addr[ 5 ], prom->mac_addr[ 6 ], prom->mac_addr[ 7 ]); | |
2167 | ||
2168 | for (i = 0; i < ESI_LEN; i++) { | |
2169 | fore200e->esi[ i ] = fore200e->atm_dev->esi[ i ] = prom->mac_addr[ i + 2 ]; | |
2170 | } | |
2171 | ||
2172 | fore200e_kfree(prom); | |
2173 | ||
2174 | return 0; | |
2175 | } | |
2176 | ||
2177 | ||
c027f5f9 | 2178 | static int __devinit |
1da177e4 LT |
2179 | fore200e_alloc_rx_buf(struct fore200e* fore200e) |
2180 | { | |
2181 | int scheme, magn, nbr, size, i; | |
2182 | ||
2183 | struct host_bsq* bsq; | |
2184 | struct buffer* buffer; | |
2185 | ||
2186 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | |
2187 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | |
2188 | ||
2189 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | |
2190 | ||
2191 | nbr = fore200e_rx_buf_nbr[ scheme ][ magn ]; | |
2192 | size = fore200e_rx_buf_size[ scheme ][ magn ]; | |
2193 | ||
2194 | DPRINTK(2, "rx buffers %d / %d are being allocated\n", scheme, magn); | |
2195 | ||
2196 | /* allocate the array of receive buffers */ | |
2197 | buffer = bsq->buffer = fore200e_kmalloc(nbr * sizeof(struct buffer), GFP_KERNEL); | |
2198 | ||
2199 | if (buffer == NULL) | |
2200 | return -ENOMEM; | |
2201 | ||
2202 | bsq->freebuf = NULL; | |
2203 | ||
2204 | for (i = 0; i < nbr; i++) { | |
2205 | ||
2206 | buffer[ i ].scheme = scheme; | |
2207 | buffer[ i ].magn = magn; | |
2208 | #ifdef FORE200E_BSQ_DEBUG | |
2209 | buffer[ i ].index = i; | |
2210 | buffer[ i ].supplied = 0; | |
2211 | #endif | |
2212 | ||
2213 | /* allocate the receive buffer body */ | |
2214 | if (fore200e_chunk_alloc(fore200e, | |
2215 | &buffer[ i ].data, size, fore200e->bus->buffer_alignment, | |
2216 | DMA_FROM_DEVICE) < 0) { | |
2217 | ||
2218 | while (i > 0) | |
2219 | fore200e_chunk_free(fore200e, &buffer[ --i ].data); | |
2220 | fore200e_kfree(buffer); | |
2221 | ||
2222 | return -ENOMEM; | |
2223 | } | |
2224 | ||
2225 | /* insert the buffer into the free buffer list */ | |
2226 | buffer[ i ].next = bsq->freebuf; | |
2227 | bsq->freebuf = &buffer[ i ]; | |
2228 | } | |
2229 | /* all the buffers are free, initially */ | |
2230 | bsq->freebuf_count = nbr; | |
2231 | ||
2232 | #ifdef FORE200E_BSQ_DEBUG | |
2233 | bsq_audit(3, bsq, scheme, magn); | |
2234 | #endif | |
2235 | } | |
2236 | } | |
2237 | ||
2238 | fore200e->state = FORE200E_STATE_ALLOC_BUF; | |
2239 | return 0; | |
2240 | } | |
2241 | ||
2242 | ||
c027f5f9 | 2243 | static int __devinit |
1da177e4 LT |
2244 | fore200e_init_bs_queue(struct fore200e* fore200e) |
2245 | { | |
2246 | int scheme, magn, i; | |
2247 | ||
2248 | struct host_bsq* bsq; | |
2249 | struct cp_bsq_entry __iomem * cp_entry; | |
2250 | ||
2251 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | |
2252 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | |
2253 | ||
2254 | DPRINTK(2, "buffer supply queue %d / %d is being initialized\n", scheme, magn); | |
2255 | ||
2256 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | |
2257 | ||
2258 | /* allocate and align the array of status words */ | |
2259 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2260 | &bsq->status, | |
2261 | sizeof(enum status), | |
2262 | QUEUE_SIZE_BS, | |
2263 | fore200e->bus->status_alignment) < 0) { | |
2264 | return -ENOMEM; | |
2265 | } | |
2266 | ||
2267 | /* allocate and align the array of receive buffer descriptors */ | |
2268 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2269 | &bsq->rbd_block, | |
2270 | sizeof(struct rbd_block), | |
2271 | QUEUE_SIZE_BS, | |
2272 | fore200e->bus->descr_alignment) < 0) { | |
2273 | ||
2274 | fore200e->bus->dma_chunk_free(fore200e, &bsq->status); | |
2275 | return -ENOMEM; | |
2276 | } | |
2277 | ||
2278 | /* get the base address of the cp resident buffer supply queue entries */ | |
2279 | cp_entry = fore200e->virt_base + | |
2280 | fore200e->bus->read(&fore200e->cp_queues->cp_bsq[ scheme ][ magn ]); | |
2281 | ||
2282 | /* fill the host resident and cp resident buffer supply queue entries */ | |
2283 | for (i = 0; i < QUEUE_SIZE_BS; i++) { | |
2284 | ||
2285 | bsq->host_entry[ i ].status = | |
2286 | FORE200E_INDEX(bsq->status.align_addr, enum status, i); | |
2287 | bsq->host_entry[ i ].rbd_block = | |
2288 | FORE200E_INDEX(bsq->rbd_block.align_addr, struct rbd_block, i); | |
2289 | bsq->host_entry[ i ].rbd_block_dma = | |
2290 | FORE200E_DMA_INDEX(bsq->rbd_block.dma_addr, struct rbd_block, i); | |
2291 | bsq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | |
2292 | ||
2293 | *bsq->host_entry[ i ].status = STATUS_FREE; | |
2294 | ||
2295 | fore200e->bus->write(FORE200E_DMA_INDEX(bsq->status.dma_addr, enum status, i), | |
2296 | &cp_entry[ i ].status_haddr); | |
2297 | } | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | fore200e->state = FORE200E_STATE_INIT_BSQ; | |
2302 | return 0; | |
2303 | } | |
2304 | ||
2305 | ||
c027f5f9 | 2306 | static int __devinit |
1da177e4 LT |
2307 | fore200e_init_rx_queue(struct fore200e* fore200e) |
2308 | { | |
2309 | struct host_rxq* rxq = &fore200e->host_rxq; | |
2310 | struct cp_rxq_entry __iomem * cp_entry; | |
2311 | int i; | |
2312 | ||
2313 | DPRINTK(2, "receive queue is being initialized\n"); | |
2314 | ||
2315 | /* allocate and align the array of status words */ | |
2316 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2317 | &rxq->status, | |
2318 | sizeof(enum status), | |
2319 | QUEUE_SIZE_RX, | |
2320 | fore200e->bus->status_alignment) < 0) { | |
2321 | return -ENOMEM; | |
2322 | } | |
2323 | ||
2324 | /* allocate and align the array of receive PDU descriptors */ | |
2325 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2326 | &rxq->rpd, | |
2327 | sizeof(struct rpd), | |
2328 | QUEUE_SIZE_RX, | |
2329 | fore200e->bus->descr_alignment) < 0) { | |
2330 | ||
2331 | fore200e->bus->dma_chunk_free(fore200e, &rxq->status); | |
2332 | return -ENOMEM; | |
2333 | } | |
2334 | ||
2335 | /* get the base address of the cp resident rx queue entries */ | |
2336 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_rxq); | |
2337 | ||
2338 | /* fill the host resident and cp resident rx entries */ | |
2339 | for (i=0; i < QUEUE_SIZE_RX; i++) { | |
2340 | ||
2341 | rxq->host_entry[ i ].status = | |
2342 | FORE200E_INDEX(rxq->status.align_addr, enum status, i); | |
2343 | rxq->host_entry[ i ].rpd = | |
2344 | FORE200E_INDEX(rxq->rpd.align_addr, struct rpd, i); | |
2345 | rxq->host_entry[ i ].rpd_dma = | |
2346 | FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i); | |
2347 | rxq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | |
2348 | ||
2349 | *rxq->host_entry[ i ].status = STATUS_FREE; | |
2350 | ||
2351 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->status.dma_addr, enum status, i), | |
2352 | &cp_entry[ i ].status_haddr); | |
2353 | ||
2354 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i), | |
2355 | &cp_entry[ i ].rpd_haddr); | |
2356 | } | |
2357 | ||
2358 | /* set the head entry of the queue */ | |
2359 | rxq->head = 0; | |
2360 | ||
2361 | fore200e->state = FORE200E_STATE_INIT_RXQ; | |
2362 | return 0; | |
2363 | } | |
2364 | ||
2365 | ||
c027f5f9 | 2366 | static int __devinit |
1da177e4 LT |
2367 | fore200e_init_tx_queue(struct fore200e* fore200e) |
2368 | { | |
2369 | struct host_txq* txq = &fore200e->host_txq; | |
2370 | struct cp_txq_entry __iomem * cp_entry; | |
2371 | int i; | |
2372 | ||
2373 | DPRINTK(2, "transmit queue is being initialized\n"); | |
2374 | ||
2375 | /* allocate and align the array of status words */ | |
2376 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2377 | &txq->status, | |
2378 | sizeof(enum status), | |
2379 | QUEUE_SIZE_TX, | |
2380 | fore200e->bus->status_alignment) < 0) { | |
2381 | return -ENOMEM; | |
2382 | } | |
2383 | ||
2384 | /* allocate and align the array of transmit PDU descriptors */ | |
2385 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2386 | &txq->tpd, | |
2387 | sizeof(struct tpd), | |
2388 | QUEUE_SIZE_TX, | |
2389 | fore200e->bus->descr_alignment) < 0) { | |
2390 | ||
2391 | fore200e->bus->dma_chunk_free(fore200e, &txq->status); | |
2392 | return -ENOMEM; | |
2393 | } | |
2394 | ||
2395 | /* get the base address of the cp resident tx queue entries */ | |
2396 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_txq); | |
2397 | ||
2398 | /* fill the host resident and cp resident tx entries */ | |
2399 | for (i=0; i < QUEUE_SIZE_TX; i++) { | |
2400 | ||
2401 | txq->host_entry[ i ].status = | |
2402 | FORE200E_INDEX(txq->status.align_addr, enum status, i); | |
2403 | txq->host_entry[ i ].tpd = | |
2404 | FORE200E_INDEX(txq->tpd.align_addr, struct tpd, i); | |
2405 | txq->host_entry[ i ].tpd_dma = | |
2406 | FORE200E_DMA_INDEX(txq->tpd.dma_addr, struct tpd, i); | |
2407 | txq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | |
2408 | ||
2409 | *txq->host_entry[ i ].status = STATUS_FREE; | |
2410 | ||
2411 | fore200e->bus->write(FORE200E_DMA_INDEX(txq->status.dma_addr, enum status, i), | |
2412 | &cp_entry[ i ].status_haddr); | |
2413 | ||
2414 | /* although there is a one-to-one mapping of tx queue entries and tpds, | |
2415 | we do not write here the DMA (physical) base address of each tpd into | |
2416 | the related cp resident entry, because the cp relies on this write | |
2417 | operation to detect that a new pdu has been submitted for tx */ | |
2418 | } | |
2419 | ||
2420 | /* set the head and tail entries of the queue */ | |
2421 | txq->head = 0; | |
2422 | txq->tail = 0; | |
2423 | ||
2424 | fore200e->state = FORE200E_STATE_INIT_TXQ; | |
2425 | return 0; | |
2426 | } | |
2427 | ||
2428 | ||
c027f5f9 | 2429 | static int __devinit |
1da177e4 LT |
2430 | fore200e_init_cmd_queue(struct fore200e* fore200e) |
2431 | { | |
2432 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | |
2433 | struct cp_cmdq_entry __iomem * cp_entry; | |
2434 | int i; | |
2435 | ||
2436 | DPRINTK(2, "command queue is being initialized\n"); | |
2437 | ||
2438 | /* allocate and align the array of status words */ | |
2439 | if (fore200e->bus->dma_chunk_alloc(fore200e, | |
2440 | &cmdq->status, | |
2441 | sizeof(enum status), | |
2442 | QUEUE_SIZE_CMD, | |
2443 | fore200e->bus->status_alignment) < 0) { | |
2444 | return -ENOMEM; | |
2445 | } | |
2446 | ||
2447 | /* get the base address of the cp resident cmd queue entries */ | |
2448 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_cmdq); | |
2449 | ||
2450 | /* fill the host resident and cp resident cmd entries */ | |
2451 | for (i=0; i < QUEUE_SIZE_CMD; i++) { | |
2452 | ||
2453 | cmdq->host_entry[ i ].status = | |
2454 | FORE200E_INDEX(cmdq->status.align_addr, enum status, i); | |
2455 | cmdq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | |
2456 | ||
2457 | *cmdq->host_entry[ i ].status = STATUS_FREE; | |
2458 | ||
2459 | fore200e->bus->write(FORE200E_DMA_INDEX(cmdq->status.dma_addr, enum status, i), | |
2460 | &cp_entry[ i ].status_haddr); | |
2461 | } | |
2462 | ||
2463 | /* set the head entry of the queue */ | |
2464 | cmdq->head = 0; | |
2465 | ||
2466 | fore200e->state = FORE200E_STATE_INIT_CMDQ; | |
2467 | return 0; | |
2468 | } | |
2469 | ||
2470 | ||
2471 | static void __init | |
2472 | fore200e_param_bs_queue(struct fore200e* fore200e, | |
2473 | enum buffer_scheme scheme, enum buffer_magn magn, | |
2474 | int queue_length, int pool_size, int supply_blksize) | |
2475 | { | |
2476 | struct bs_spec __iomem * bs_spec = &fore200e->cp_queues->init.bs_spec[ scheme ][ magn ]; | |
2477 | ||
2478 | fore200e->bus->write(queue_length, &bs_spec->queue_length); | |
2479 | fore200e->bus->write(fore200e_rx_buf_size[ scheme ][ magn ], &bs_spec->buffer_size); | |
2480 | fore200e->bus->write(pool_size, &bs_spec->pool_size); | |
2481 | fore200e->bus->write(supply_blksize, &bs_spec->supply_blksize); | |
2482 | } | |
2483 | ||
2484 | ||
c027f5f9 | 2485 | static int __devinit |
1da177e4 LT |
2486 | fore200e_initialize(struct fore200e* fore200e) |
2487 | { | |
2488 | struct cp_queues __iomem * cpq; | |
2489 | int ok, scheme, magn; | |
2490 | ||
2491 | DPRINTK(2, "device %s being initialized\n", fore200e->name); | |
2492 | ||
2493 | init_MUTEX(&fore200e->rate_sf); | |
2494 | spin_lock_init(&fore200e->q_lock); | |
2495 | ||
2496 | cpq = fore200e->cp_queues = fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET; | |
2497 | ||
2498 | /* enable cp to host interrupts */ | |
2499 | fore200e->bus->write(1, &cpq->imask); | |
2500 | ||
2501 | if (fore200e->bus->irq_enable) | |
2502 | fore200e->bus->irq_enable(fore200e); | |
2503 | ||
2504 | fore200e->bus->write(NBR_CONNECT, &cpq->init.num_connect); | |
2505 | ||
2506 | fore200e->bus->write(QUEUE_SIZE_CMD, &cpq->init.cmd_queue_len); | |
2507 | fore200e->bus->write(QUEUE_SIZE_RX, &cpq->init.rx_queue_len); | |
2508 | fore200e->bus->write(QUEUE_SIZE_TX, &cpq->init.tx_queue_len); | |
2509 | ||
2510 | fore200e->bus->write(RSD_EXTENSION, &cpq->init.rsd_extension); | |
2511 | fore200e->bus->write(TSD_EXTENSION, &cpq->init.tsd_extension); | |
2512 | ||
2513 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) | |
2514 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) | |
2515 | fore200e_param_bs_queue(fore200e, scheme, magn, | |
2516 | QUEUE_SIZE_BS, | |
2517 | fore200e_rx_buf_nbr[ scheme ][ magn ], | |
2518 | RBD_BLK_SIZE); | |
2519 | ||
2520 | /* issue the initialize command */ | |
2521 | fore200e->bus->write(STATUS_PENDING, &cpq->init.status); | |
2522 | fore200e->bus->write(OPCODE_INITIALIZE, &cpq->init.opcode); | |
2523 | ||
2524 | ok = fore200e_io_poll(fore200e, &cpq->init.status, STATUS_COMPLETE, 3000); | |
2525 | if (ok == 0) { | |
2526 | printk(FORE200E "device %s initialization failed\n", fore200e->name); | |
2527 | return -ENODEV; | |
2528 | } | |
2529 | ||
2530 | printk(FORE200E "device %s initialized\n", fore200e->name); | |
2531 | ||
2532 | fore200e->state = FORE200E_STATE_INITIALIZE; | |
2533 | return 0; | |
2534 | } | |
2535 | ||
2536 | ||
c027f5f9 | 2537 | static void __devinit |
1da177e4 LT |
2538 | fore200e_monitor_putc(struct fore200e* fore200e, char c) |
2539 | { | |
2540 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; | |
2541 | ||
2542 | #if 0 | |
2543 | printk("%c", c); | |
2544 | #endif | |
2545 | fore200e->bus->write(((u32) c) | FORE200E_CP_MONITOR_UART_AVAIL, &monitor->soft_uart.send); | |
2546 | } | |
2547 | ||
2548 | ||
c027f5f9 | 2549 | static int __devinit |
1da177e4 LT |
2550 | fore200e_monitor_getc(struct fore200e* fore200e) |
2551 | { | |
2552 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; | |
2553 | unsigned long timeout = jiffies + msecs_to_jiffies(50); | |
2554 | int c; | |
2555 | ||
2556 | while (time_before(jiffies, timeout)) { | |
2557 | ||
2558 | c = (int) fore200e->bus->read(&monitor->soft_uart.recv); | |
2559 | ||
2560 | if (c & FORE200E_CP_MONITOR_UART_AVAIL) { | |
2561 | ||
2562 | fore200e->bus->write(FORE200E_CP_MONITOR_UART_FREE, &monitor->soft_uart.recv); | |
2563 | #if 0 | |
2564 | printk("%c", c & 0xFF); | |
2565 | #endif | |
2566 | return c & 0xFF; | |
2567 | } | |
2568 | } | |
2569 | ||
2570 | return -1; | |
2571 | } | |
2572 | ||
2573 | ||
c027f5f9 | 2574 | static void __devinit |
1da177e4 LT |
2575 | fore200e_monitor_puts(struct fore200e* fore200e, char* str) |
2576 | { | |
2577 | while (*str) { | |
2578 | ||
2579 | /* the i960 monitor doesn't accept any new character if it has something to say */ | |
2580 | while (fore200e_monitor_getc(fore200e) >= 0); | |
2581 | ||
2582 | fore200e_monitor_putc(fore200e, *str++); | |
2583 | } | |
2584 | ||
2585 | while (fore200e_monitor_getc(fore200e) >= 0); | |
2586 | } | |
2587 | ||
2588 | ||
c027f5f9 | 2589 | static int __devinit |
1da177e4 LT |
2590 | fore200e_start_fw(struct fore200e* fore200e) |
2591 | { | |
2592 | int ok; | |
2593 | char cmd[ 48 ]; | |
2594 | struct fw_header* fw_header = (struct fw_header*) fore200e->bus->fw_data; | |
2595 | ||
2596 | DPRINTK(2, "device %s firmware being started\n", fore200e->name); | |
2597 | ||
2598 | #if defined(__sparc_v9__) | |
2599 | /* reported to be required by SBA cards on some sparc64 hosts */ | |
2600 | fore200e_spin(100); | |
2601 | #endif | |
2602 | ||
2603 | sprintf(cmd, "\rgo %x\r", le32_to_cpu(fw_header->start_offset)); | |
2604 | ||
2605 | fore200e_monitor_puts(fore200e, cmd); | |
2606 | ||
2607 | ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000); | |
2608 | if (ok == 0) { | |
2609 | printk(FORE200E "device %s firmware didn't start\n", fore200e->name); | |
2610 | return -ENODEV; | |
2611 | } | |
2612 | ||
2613 | printk(FORE200E "device %s firmware started\n", fore200e->name); | |
2614 | ||
2615 | fore200e->state = FORE200E_STATE_START_FW; | |
2616 | return 0; | |
2617 | } | |
2618 | ||
2619 | ||
c027f5f9 | 2620 | static int __devinit |
1da177e4 LT |
2621 | fore200e_load_fw(struct fore200e* fore200e) |
2622 | { | |
2623 | u32* fw_data = (u32*) fore200e->bus->fw_data; | |
2624 | u32 fw_size = (u32) *fore200e->bus->fw_size / sizeof(u32); | |
2625 | ||
2626 | struct fw_header* fw_header = (struct fw_header*) fw_data; | |
2627 | ||
2628 | u32 __iomem *load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset); | |
2629 | ||
2630 | DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)\n", | |
2631 | fore200e->name, load_addr, fw_size); | |
2632 | ||
2633 | if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) { | |
2634 | printk(FORE200E "corrupted %s firmware image\n", fore200e->bus->model_name); | |
2635 | return -ENODEV; | |
2636 | } | |
2637 | ||
2638 | for (; fw_size--; fw_data++, load_addr++) | |
2639 | fore200e->bus->write(le32_to_cpu(*fw_data), load_addr); | |
2640 | ||
2641 | fore200e->state = FORE200E_STATE_LOAD_FW; | |
2642 | return 0; | |
2643 | } | |
2644 | ||
2645 | ||
c027f5f9 | 2646 | static int __devinit |
1da177e4 LT |
2647 | fore200e_register(struct fore200e* fore200e) |
2648 | { | |
2649 | struct atm_dev* atm_dev; | |
2650 | ||
2651 | DPRINTK(2, "device %s being registered\n", fore200e->name); | |
2652 | ||
2653 | atm_dev = atm_dev_register(fore200e->bus->proc_name, &fore200e_ops, -1, | |
2654 | NULL); | |
2655 | if (atm_dev == NULL) { | |
2656 | printk(FORE200E "unable to register device %s\n", fore200e->name); | |
2657 | return -ENODEV; | |
2658 | } | |
2659 | ||
2660 | atm_dev->dev_data = fore200e; | |
2661 | fore200e->atm_dev = atm_dev; | |
2662 | ||
2663 | atm_dev->ci_range.vpi_bits = FORE200E_VPI_BITS; | |
2664 | atm_dev->ci_range.vci_bits = FORE200E_VCI_BITS; | |
2665 | ||
2666 | fore200e->available_cell_rate = ATM_OC3_PCR; | |
2667 | ||
2668 | fore200e->state = FORE200E_STATE_REGISTER; | |
2669 | return 0; | |
2670 | } | |
2671 | ||
2672 | ||
c027f5f9 | 2673 | static int __devinit |
1da177e4 LT |
2674 | fore200e_init(struct fore200e* fore200e) |
2675 | { | |
2676 | if (fore200e_register(fore200e) < 0) | |
2677 | return -ENODEV; | |
2678 | ||
2679 | if (fore200e->bus->configure(fore200e) < 0) | |
2680 | return -ENODEV; | |
2681 | ||
2682 | if (fore200e->bus->map(fore200e) < 0) | |
2683 | return -ENODEV; | |
2684 | ||
2685 | if (fore200e_reset(fore200e, 1) < 0) | |
2686 | return -ENODEV; | |
2687 | ||
2688 | if (fore200e_load_fw(fore200e) < 0) | |
2689 | return -ENODEV; | |
2690 | ||
2691 | if (fore200e_start_fw(fore200e) < 0) | |
2692 | return -ENODEV; | |
2693 | ||
2694 | if (fore200e_initialize(fore200e) < 0) | |
2695 | return -ENODEV; | |
2696 | ||
2697 | if (fore200e_init_cmd_queue(fore200e) < 0) | |
2698 | return -ENOMEM; | |
2699 | ||
2700 | if (fore200e_init_tx_queue(fore200e) < 0) | |
2701 | return -ENOMEM; | |
2702 | ||
2703 | if (fore200e_init_rx_queue(fore200e) < 0) | |
2704 | return -ENOMEM; | |
2705 | ||
2706 | if (fore200e_init_bs_queue(fore200e) < 0) | |
2707 | return -ENOMEM; | |
2708 | ||
2709 | if (fore200e_alloc_rx_buf(fore200e) < 0) | |
2710 | return -ENOMEM; | |
2711 | ||
2712 | if (fore200e_get_esi(fore200e) < 0) | |
2713 | return -EIO; | |
2714 | ||
2715 | if (fore200e_irq_request(fore200e) < 0) | |
2716 | return -EBUSY; | |
2717 | ||
2718 | fore200e_supply(fore200e); | |
c027f5f9 | 2719 | |
1da177e4 LT |
2720 | /* all done, board initialization is now complete */ |
2721 | fore200e->state = FORE200E_STATE_COMPLETE; | |
2722 | return 0; | |
2723 | } | |
2724 | ||
2725 | ||
2726 | static int __devinit | |
2727 | fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) | |
2728 | { | |
2729 | const struct fore200e_bus* bus = (struct fore200e_bus*) pci_ent->driver_data; | |
2730 | struct fore200e* fore200e; | |
2731 | int err = 0; | |
2732 | static int index = 0; | |
2733 | ||
2734 | if (pci_enable_device(pci_dev)) { | |
2735 | err = -EINVAL; | |
2736 | goto out; | |
2737 | } | |
2738 | ||
2739 | fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL); | |
2740 | if (fore200e == NULL) { | |
2741 | err = -ENOMEM; | |
2742 | goto out_disable; | |
2743 | } | |
2744 | ||
2745 | fore200e->bus = bus; | |
2746 | fore200e->bus_dev = pci_dev; | |
2747 | fore200e->irq = pci_dev->irq; | |
2748 | fore200e->phys_base = pci_resource_start(pci_dev, 0); | |
2749 | ||
2750 | sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1); | |
2751 | ||
2752 | pci_set_master(pci_dev); | |
2753 | ||
2754 | printk(FORE200E "device %s found at 0x%lx, IRQ %s\n", | |
2755 | fore200e->bus->model_name, | |
2756 | fore200e->phys_base, fore200e_irq_itoa(fore200e->irq)); | |
2757 | ||
2758 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); | |
2759 | ||
2760 | err = fore200e_init(fore200e); | |
2761 | if (err < 0) { | |
2762 | fore200e_shutdown(fore200e); | |
2763 | goto out_free; | |
2764 | } | |
2765 | ||
2766 | ++index; | |
2767 | pci_set_drvdata(pci_dev, fore200e); | |
2768 | ||
2769 | out: | |
2770 | return err; | |
2771 | ||
2772 | out_free: | |
2773 | kfree(fore200e); | |
2774 | out_disable: | |
2775 | pci_disable_device(pci_dev); | |
2776 | goto out; | |
2777 | } | |
2778 | ||
2779 | ||
2780 | static void __devexit fore200e_pca_remove_one(struct pci_dev *pci_dev) | |
2781 | { | |
2782 | struct fore200e *fore200e; | |
2783 | ||
2784 | fore200e = pci_get_drvdata(pci_dev); | |
2785 | ||
1da177e4 LT |
2786 | fore200e_shutdown(fore200e); |
2787 | kfree(fore200e); | |
2788 | pci_disable_device(pci_dev); | |
2789 | } | |
2790 | ||
2791 | ||
2792 | #ifdef CONFIG_ATM_FORE200E_PCA | |
2793 | static struct pci_device_id fore200e_pca_tbl[] = { | |
2794 | { PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID, | |
2795 | 0, 0, (unsigned long) &fore200e_bus[0] }, | |
2796 | { 0, } | |
2797 | }; | |
2798 | ||
2799 | MODULE_DEVICE_TABLE(pci, fore200e_pca_tbl); | |
2800 | ||
2801 | static struct pci_driver fore200e_pca_driver = { | |
2802 | .name = "fore_200e", | |
2803 | .probe = fore200e_pca_detect, | |
2804 | .remove = __devexit_p(fore200e_pca_remove_one), | |
2805 | .id_table = fore200e_pca_tbl, | |
2806 | }; | |
2807 | #endif | |
2808 | ||
2809 | ||
2810 | static int __init | |
2811 | fore200e_module_init(void) | |
2812 | { | |
2813 | const struct fore200e_bus* bus; | |
2814 | struct fore200e* fore200e; | |
2815 | int index; | |
2816 | ||
2817 | printk(FORE200E "FORE Systems 200E-series ATM driver - version " FORE200E_VERSION "\n"); | |
2818 | ||
2819 | /* for each configured bus interface */ | |
2820 | for (bus = fore200e_bus; bus->model_name; bus++) { | |
2821 | ||
2822 | /* detect all boards present on that bus */ | |
2823 | for (index = 0; bus->detect && (fore200e = bus->detect(bus, index)); index++) { | |
2824 | ||
2825 | printk(FORE200E "device %s found at 0x%lx, IRQ %s\n", | |
2826 | fore200e->bus->model_name, | |
2827 | fore200e->phys_base, fore200e_irq_itoa(fore200e->irq)); | |
2828 | ||
2829 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); | |
2830 | ||
2831 | if (fore200e_init(fore200e) < 0) { | |
2832 | ||
2833 | fore200e_shutdown(fore200e); | |
2834 | break; | |
2835 | } | |
2836 | ||
2837 | list_add(&fore200e->entry, &fore200e_boards); | |
2838 | } | |
2839 | } | |
2840 | ||
2841 | #ifdef CONFIG_ATM_FORE200E_PCA | |
18900829 | 2842 | if (!pci_register_driver(&fore200e_pca_driver)) |
1da177e4 LT |
2843 | return 0; |
2844 | #endif | |
2845 | ||
2846 | if (!list_empty(&fore200e_boards)) | |
2847 | return 0; | |
2848 | ||
2849 | return -ENODEV; | |
2850 | } | |
2851 | ||
2852 | ||
2853 | static void __exit | |
2854 | fore200e_module_cleanup(void) | |
2855 | { | |
2856 | struct fore200e *fore200e, *next; | |
2857 | ||
2858 | #ifdef CONFIG_ATM_FORE200E_PCA | |
2859 | pci_unregister_driver(&fore200e_pca_driver); | |
2860 | #endif | |
2861 | ||
2862 | list_for_each_entry_safe(fore200e, next, &fore200e_boards, entry) { | |
2863 | fore200e_shutdown(fore200e); | |
2864 | kfree(fore200e); | |
2865 | } | |
2866 | DPRINTK(1, "module being removed\n"); | |
2867 | } | |
2868 | ||
2869 | ||
2870 | static int | |
2871 | fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) | |
2872 | { | |
2873 | struct fore200e* fore200e = FORE200E_DEV(dev); | |
2874 | struct fore200e_vcc* fore200e_vcc; | |
2875 | struct atm_vcc* vcc; | |
2876 | int i, len, left = *pos; | |
2877 | unsigned long flags; | |
2878 | ||
2879 | if (!left--) { | |
2880 | ||
2881 | if (fore200e_getstats(fore200e) < 0) | |
2882 | return -EIO; | |
2883 | ||
2884 | len = sprintf(page,"\n" | |
2885 | " device:\n" | |
2886 | " internal name:\t\t%s\n", fore200e->name); | |
2887 | ||
2888 | /* print bus-specific information */ | |
2889 | if (fore200e->bus->proc_read) | |
2890 | len += fore200e->bus->proc_read(fore200e, page + len); | |
2891 | ||
2892 | len += sprintf(page + len, | |
2893 | " interrupt line:\t\t%s\n" | |
2894 | " physical base address:\t0x%p\n" | |
2895 | " virtual base address:\t0x%p\n" | |
2896 | " factory address (ESI):\t%02x:%02x:%02x:%02x:%02x:%02x\n" | |
2897 | " board serial number:\t\t%d\n\n", | |
2898 | fore200e_irq_itoa(fore200e->irq), | |
2899 | (void*)fore200e->phys_base, | |
2900 | fore200e->virt_base, | |
2901 | fore200e->esi[0], fore200e->esi[1], fore200e->esi[2], | |
2902 | fore200e->esi[3], fore200e->esi[4], fore200e->esi[5], | |
2903 | fore200e->esi[4] * 256 + fore200e->esi[5]); | |
2904 | ||
2905 | return len; | |
2906 | } | |
2907 | ||
2908 | if (!left--) | |
2909 | return sprintf(page, | |
2910 | " free small bufs, scheme 1:\t%d\n" | |
2911 | " free large bufs, scheme 1:\t%d\n" | |
2912 | " free small bufs, scheme 2:\t%d\n" | |
2913 | " free large bufs, scheme 2:\t%d\n", | |
2914 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_SMALL ].freebuf_count, | |
2915 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_LARGE ].freebuf_count, | |
2916 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_SMALL ].freebuf_count, | |
2917 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_LARGE ].freebuf_count); | |
2918 | ||
2919 | if (!left--) { | |
2920 | u32 hb = fore200e->bus->read(&fore200e->cp_queues->heartbeat); | |
2921 | ||
2922 | len = sprintf(page,"\n\n" | |
2923 | " cell processor:\n" | |
2924 | " heartbeat state:\t\t"); | |
2925 | ||
2926 | if (hb >> 16 != 0xDEAD) | |
2927 | len += sprintf(page + len, "0x%08x\n", hb); | |
2928 | else | |
2929 | len += sprintf(page + len, "*** FATAL ERROR %04x ***\n", hb & 0xFFFF); | |
2930 | ||
2931 | return len; | |
2932 | } | |
2933 | ||
2934 | if (!left--) { | |
2935 | static const char* media_name[] = { | |
2936 | "unshielded twisted pair", | |
2937 | "multimode optical fiber ST", | |
2938 | "multimode optical fiber SC", | |
2939 | "single-mode optical fiber ST", | |
2940 | "single-mode optical fiber SC", | |
2941 | "unknown" | |
2942 | }; | |
2943 | ||
2944 | static const char* oc3_mode[] = { | |
2945 | "normal operation", | |
2946 | "diagnostic loopback", | |
2947 | "line loopback", | |
2948 | "unknown" | |
2949 | }; | |
2950 | ||
2951 | u32 fw_release = fore200e->bus->read(&fore200e->cp_queues->fw_release); | |
2952 | u32 mon960_release = fore200e->bus->read(&fore200e->cp_queues->mon960_release); | |
2953 | u32 oc3_revision = fore200e->bus->read(&fore200e->cp_queues->oc3_revision); | |
2954 | u32 media_index = FORE200E_MEDIA_INDEX(fore200e->bus->read(&fore200e->cp_queues->media_type)); | |
2955 | u32 oc3_index; | |
2956 | ||
2957 | if ((media_index < 0) || (media_index > 4)) | |
2958 | media_index = 5; | |
2959 | ||
2960 | switch (fore200e->loop_mode) { | |
2961 | case ATM_LM_NONE: oc3_index = 0; | |
2962 | break; | |
2963 | case ATM_LM_LOC_PHY: oc3_index = 1; | |
2964 | break; | |
2965 | case ATM_LM_RMT_PHY: oc3_index = 2; | |
2966 | break; | |
2967 | default: oc3_index = 3; | |
2968 | } | |
2969 | ||
2970 | return sprintf(page, | |
2971 | " firmware release:\t\t%d.%d.%d\n" | |
2972 | " monitor release:\t\t%d.%d\n" | |
2973 | " media type:\t\t\t%s\n" | |
2974 | " OC-3 revision:\t\t0x%x\n" | |
2975 | " OC-3 mode:\t\t\t%s", | |
2976 | fw_release >> 16, fw_release << 16 >> 24, fw_release << 24 >> 24, | |
2977 | mon960_release >> 16, mon960_release << 16 >> 16, | |
2978 | media_name[ media_index ], | |
2979 | oc3_revision, | |
2980 | oc3_mode[ oc3_index ]); | |
2981 | } | |
2982 | ||
2983 | if (!left--) { | |
2984 | struct cp_monitor __iomem * cp_monitor = fore200e->cp_monitor; | |
2985 | ||
2986 | return sprintf(page, | |
2987 | "\n\n" | |
2988 | " monitor:\n" | |
2989 | " version number:\t\t%d\n" | |
2990 | " boot status word:\t\t0x%08x\n", | |
2991 | fore200e->bus->read(&cp_monitor->mon_version), | |
2992 | fore200e->bus->read(&cp_monitor->bstat)); | |
2993 | } | |
2994 | ||
2995 | if (!left--) | |
2996 | return sprintf(page, | |
2997 | "\n" | |
2998 | " device statistics:\n" | |
2999 | " 4b5b:\n" | |
3000 | " crc_header_errors:\t\t%10u\n" | |
3001 | " framing_errors:\t\t%10u\n", | |
3002 | fore200e_swap(fore200e->stats->phy.crc_header_errors), | |
3003 | fore200e_swap(fore200e->stats->phy.framing_errors)); | |
3004 | ||
3005 | if (!left--) | |
3006 | return sprintf(page, "\n" | |
3007 | " OC-3:\n" | |
3008 | " section_bip8_errors:\t%10u\n" | |
3009 | " path_bip8_errors:\t\t%10u\n" | |
3010 | " line_bip24_errors:\t\t%10u\n" | |
3011 | " line_febe_errors:\t\t%10u\n" | |
3012 | " path_febe_errors:\t\t%10u\n" | |
3013 | " corr_hcs_errors:\t\t%10u\n" | |
3014 | " ucorr_hcs_errors:\t\t%10u\n", | |
3015 | fore200e_swap(fore200e->stats->oc3.section_bip8_errors), | |
3016 | fore200e_swap(fore200e->stats->oc3.path_bip8_errors), | |
3017 | fore200e_swap(fore200e->stats->oc3.line_bip24_errors), | |
3018 | fore200e_swap(fore200e->stats->oc3.line_febe_errors), | |
3019 | fore200e_swap(fore200e->stats->oc3.path_febe_errors), | |
3020 | fore200e_swap(fore200e->stats->oc3.corr_hcs_errors), | |
3021 | fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors)); | |
3022 | ||
3023 | if (!left--) | |
3024 | return sprintf(page,"\n" | |
3025 | " ATM:\t\t\t\t cells\n" | |
3026 | " TX:\t\t\t%10u\n" | |
3027 | " RX:\t\t\t%10u\n" | |
3028 | " vpi out of range:\t\t%10u\n" | |
3029 | " vpi no conn:\t\t%10u\n" | |
3030 | " vci out of range:\t\t%10u\n" | |
3031 | " vci no conn:\t\t%10u\n", | |
3032 | fore200e_swap(fore200e->stats->atm.cells_transmitted), | |
3033 | fore200e_swap(fore200e->stats->atm.cells_received), | |
3034 | fore200e_swap(fore200e->stats->atm.vpi_bad_range), | |
3035 | fore200e_swap(fore200e->stats->atm.vpi_no_conn), | |
3036 | fore200e_swap(fore200e->stats->atm.vci_bad_range), | |
3037 | fore200e_swap(fore200e->stats->atm.vci_no_conn)); | |
3038 | ||
3039 | if (!left--) | |
3040 | return sprintf(page,"\n" | |
3041 | " AAL0:\t\t\t cells\n" | |
3042 | " TX:\t\t\t%10u\n" | |
3043 | " RX:\t\t\t%10u\n" | |
3044 | " dropped:\t\t\t%10u\n", | |
3045 | fore200e_swap(fore200e->stats->aal0.cells_transmitted), | |
3046 | fore200e_swap(fore200e->stats->aal0.cells_received), | |
3047 | fore200e_swap(fore200e->stats->aal0.cells_dropped)); | |
3048 | ||
3049 | if (!left--) | |
3050 | return sprintf(page,"\n" | |
3051 | " AAL3/4:\n" | |
3052 | " SAR sublayer:\t\t cells\n" | |
3053 | " TX:\t\t\t%10u\n" | |
3054 | " RX:\t\t\t%10u\n" | |
3055 | " dropped:\t\t\t%10u\n" | |
3056 | " CRC errors:\t\t%10u\n" | |
3057 | " protocol errors:\t\t%10u\n\n" | |
3058 | " CS sublayer:\t\t PDUs\n" | |
3059 | " TX:\t\t\t%10u\n" | |
3060 | " RX:\t\t\t%10u\n" | |
3061 | " dropped:\t\t\t%10u\n" | |
3062 | " protocol errors:\t\t%10u\n", | |
3063 | fore200e_swap(fore200e->stats->aal34.cells_transmitted), | |
3064 | fore200e_swap(fore200e->stats->aal34.cells_received), | |
3065 | fore200e_swap(fore200e->stats->aal34.cells_dropped), | |
3066 | fore200e_swap(fore200e->stats->aal34.cells_crc_errors), | |
3067 | fore200e_swap(fore200e->stats->aal34.cells_protocol_errors), | |
3068 | fore200e_swap(fore200e->stats->aal34.cspdus_transmitted), | |
3069 | fore200e_swap(fore200e->stats->aal34.cspdus_received), | |
3070 | fore200e_swap(fore200e->stats->aal34.cspdus_dropped), | |
3071 | fore200e_swap(fore200e->stats->aal34.cspdus_protocol_errors)); | |
3072 | ||
3073 | if (!left--) | |
3074 | return sprintf(page,"\n" | |
3075 | " AAL5:\n" | |
3076 | " SAR sublayer:\t\t cells\n" | |
3077 | " TX:\t\t\t%10u\n" | |
3078 | " RX:\t\t\t%10u\n" | |
3079 | " dropped:\t\t\t%10u\n" | |
3080 | " congestions:\t\t%10u\n\n" | |
3081 | " CS sublayer:\t\t PDUs\n" | |
3082 | " TX:\t\t\t%10u\n" | |
3083 | " RX:\t\t\t%10u\n" | |
3084 | " dropped:\t\t\t%10u\n" | |
3085 | " CRC errors:\t\t%10u\n" | |
3086 | " protocol errors:\t\t%10u\n", | |
3087 | fore200e_swap(fore200e->stats->aal5.cells_transmitted), | |
3088 | fore200e_swap(fore200e->stats->aal5.cells_received), | |
3089 | fore200e_swap(fore200e->stats->aal5.cells_dropped), | |
3090 | fore200e_swap(fore200e->stats->aal5.congestion_experienced), | |
3091 | fore200e_swap(fore200e->stats->aal5.cspdus_transmitted), | |
3092 | fore200e_swap(fore200e->stats->aal5.cspdus_received), | |
3093 | fore200e_swap(fore200e->stats->aal5.cspdus_dropped), | |
3094 | fore200e_swap(fore200e->stats->aal5.cspdus_crc_errors), | |
3095 | fore200e_swap(fore200e->stats->aal5.cspdus_protocol_errors)); | |
3096 | ||
3097 | if (!left--) | |
3098 | return sprintf(page,"\n" | |
3099 | " AUX:\t\t allocation failures\n" | |
3100 | " small b1:\t\t\t%10u\n" | |
3101 | " large b1:\t\t\t%10u\n" | |
3102 | " small b2:\t\t\t%10u\n" | |
3103 | " large b2:\t\t\t%10u\n" | |
3104 | " RX PDUs:\t\t\t%10u\n" | |
3105 | " TX PDUs:\t\t\t%10lu\n", | |
3106 | fore200e_swap(fore200e->stats->aux.small_b1_failed), | |
3107 | fore200e_swap(fore200e->stats->aux.large_b1_failed), | |
3108 | fore200e_swap(fore200e->stats->aux.small_b2_failed), | |
3109 | fore200e_swap(fore200e->stats->aux.large_b2_failed), | |
3110 | fore200e_swap(fore200e->stats->aux.rpd_alloc_failed), | |
3111 | fore200e->tx_sat); | |
3112 | ||
3113 | if (!left--) | |
3114 | return sprintf(page,"\n" | |
3115 | " receive carrier:\t\t\t%s\n", | |
3116 | fore200e->stats->aux.receive_carrier ? "ON" : "OFF!"); | |
3117 | ||
3118 | if (!left--) { | |
3119 | return sprintf(page,"\n" | |
3120 | " VCCs:\n address VPI VCI AAL " | |
3121 | "TX PDUs TX min/max size RX PDUs RX min/max size\n"); | |
3122 | } | |
3123 | ||
3124 | for (i = 0; i < NBR_CONNECT; i++) { | |
3125 | ||
3126 | vcc = fore200e->vc_map[i].vcc; | |
3127 | ||
3128 | if (vcc == NULL) | |
3129 | continue; | |
3130 | ||
3131 | spin_lock_irqsave(&fore200e->q_lock, flags); | |
3132 | ||
3133 | if (vcc && test_bit(ATM_VF_READY, &vcc->flags) && !left--) { | |
3134 | ||
3135 | fore200e_vcc = FORE200E_VCC(vcc); | |
3136 | ASSERT(fore200e_vcc); | |
3137 | ||
3138 | len = sprintf(page, | |
3139 | " %08x %03d %05d %1d %09lu %05d/%05d %09lu %05d/%05d\n", | |
3140 | (u32)(unsigned long)vcc, | |
3141 | vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | |
3142 | fore200e_vcc->tx_pdu, | |
3143 | fore200e_vcc->tx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->tx_min_pdu, | |
3144 | fore200e_vcc->tx_max_pdu, | |
3145 | fore200e_vcc->rx_pdu, | |
3146 | fore200e_vcc->rx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->rx_min_pdu, | |
3147 | fore200e_vcc->rx_max_pdu); | |
3148 | ||
3149 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
3150 | return len; | |
3151 | } | |
3152 | ||
3153 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | |
3154 | } | |
3155 | ||
3156 | return 0; | |
3157 | } | |
3158 | ||
3159 | module_init(fore200e_module_init); | |
3160 | module_exit(fore200e_module_cleanup); | |
3161 | ||
3162 | ||
3163 | static const struct atmdev_ops fore200e_ops = | |
3164 | { | |
3165 | .open = fore200e_open, | |
3166 | .close = fore200e_close, | |
3167 | .ioctl = fore200e_ioctl, | |
3168 | .getsockopt = fore200e_getsockopt, | |
3169 | .setsockopt = fore200e_setsockopt, | |
3170 | .send = fore200e_send, | |
3171 | .change_qos = fore200e_change_qos, | |
3172 | .proc_read = fore200e_proc_read, | |
3173 | .owner = THIS_MODULE | |
3174 | }; | |
3175 | ||
3176 | ||
3177 | #ifdef CONFIG_ATM_FORE200E_PCA | |
3178 | extern const unsigned char _fore200e_pca_fw_data[]; | |
3179 | extern const unsigned int _fore200e_pca_fw_size; | |
3180 | #endif | |
3181 | #ifdef CONFIG_ATM_FORE200E_SBA | |
3182 | extern const unsigned char _fore200e_sba_fw_data[]; | |
3183 | extern const unsigned int _fore200e_sba_fw_size; | |
3184 | #endif | |
3185 | ||
3186 | static const struct fore200e_bus fore200e_bus[] = { | |
3187 | #ifdef CONFIG_ATM_FORE200E_PCA | |
3188 | { "PCA-200E", "pca200e", 32, 4, 32, | |
3189 | _fore200e_pca_fw_data, &_fore200e_pca_fw_size, | |
3190 | fore200e_pca_read, | |
3191 | fore200e_pca_write, | |
3192 | fore200e_pca_dma_map, | |
3193 | fore200e_pca_dma_unmap, | |
3194 | fore200e_pca_dma_sync_for_cpu, | |
3195 | fore200e_pca_dma_sync_for_device, | |
3196 | fore200e_pca_dma_chunk_alloc, | |
3197 | fore200e_pca_dma_chunk_free, | |
3198 | NULL, | |
3199 | fore200e_pca_configure, | |
3200 | fore200e_pca_map, | |
3201 | fore200e_pca_reset, | |
3202 | fore200e_pca_prom_read, | |
3203 | fore200e_pca_unmap, | |
3204 | NULL, | |
3205 | fore200e_pca_irq_check, | |
3206 | fore200e_pca_irq_ack, | |
3207 | fore200e_pca_proc_read, | |
3208 | }, | |
3209 | #endif | |
3210 | #ifdef CONFIG_ATM_FORE200E_SBA | |
3211 | { "SBA-200E", "sba200e", 32, 64, 32, | |
3212 | _fore200e_sba_fw_data, &_fore200e_sba_fw_size, | |
3213 | fore200e_sba_read, | |
3214 | fore200e_sba_write, | |
3215 | fore200e_sba_dma_map, | |
3216 | fore200e_sba_dma_unmap, | |
3217 | fore200e_sba_dma_sync_for_cpu, | |
3218 | fore200e_sba_dma_sync_for_device, | |
3219 | fore200e_sba_dma_chunk_alloc, | |
3220 | fore200e_sba_dma_chunk_free, | |
3221 | fore200e_sba_detect, | |
3222 | fore200e_sba_configure, | |
3223 | fore200e_sba_map, | |
3224 | fore200e_sba_reset, | |
3225 | fore200e_sba_prom_read, | |
3226 | fore200e_sba_unmap, | |
3227 | fore200e_sba_irq_enable, | |
3228 | fore200e_sba_irq_check, | |
3229 | fore200e_sba_irq_ack, | |
3230 | fore200e_sba_proc_read, | |
3231 | }, | |
3232 | #endif | |
3233 | {} | |
3234 | }; | |
3235 | ||
3236 | #ifdef MODULE_LICENSE | |
3237 | MODULE_LICENSE("GPL"); | |
3238 | #endif |