diff options
Diffstat (limited to 'drivers/atm/fore200e.c')
-rw-r--r-- | drivers/atm/fore200e.c | 3249 |
1 files changed, 3249 insertions, 0 deletions
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c new file mode 100644 index 000000000000..196b33644627 --- /dev/null +++ b/drivers/atm/fore200e.c | |||
@@ -0,0 +1,3249 @@ | |||
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 | |||
28 | #include <linux/config.h> | ||
29 | #include <linux/kernel.h> | ||
30 | #include <linux/slab.h> | ||
31 | #include <linux/init.h> | ||
32 | #include <linux/capability.h> | ||
33 | #include <linux/sched.h> | ||
34 | #include <linux/interrupt.h> | ||
35 | #include <linux/bitops.h> | ||
36 | #include <linux/pci.h> | ||
37 | #include <linux/module.h> | ||
38 | #include <linux/atmdev.h> | ||
39 | #include <linux/sonet.h> | ||
40 | #include <linux/atm_suni.h> | ||
41 | #include <linux/dma-mapping.h> | ||
42 | #include <linux/delay.h> | ||
43 | #include <asm/io.h> | ||
44 | #include <asm/string.h> | ||
45 | #include <asm/page.h> | ||
46 | #include <asm/irq.h> | ||
47 | #include <asm/dma.h> | ||
48 | #include <asm/byteorder.h> | ||
49 | #include <asm/uaccess.h> | ||
50 | #include <asm/atomic.h> | ||
51 | |||
52 | #ifdef CONFIG_ATM_FORE200E_SBA | ||
53 | #include <asm/idprom.h> | ||
54 | #include <asm/sbus.h> | ||
55 | #include <asm/openprom.h> | ||
56 | #include <asm/oplib.h> | ||
57 | #include <asm/pgtable.h> | ||
58 | #endif | ||
59 | |||
60 | #if defined(CONFIG_ATM_FORE200E_USE_TASKLET) /* defer interrupt work to a tasklet */ | ||
61 | #define FORE200E_USE_TASKLET | ||
62 | #endif | ||
63 | |||
64 | #if 0 /* enable the debugging code of the buffer supply queues */ | ||
65 | #define FORE200E_BSQ_DEBUG | ||
66 | #endif | ||
67 | |||
68 | #if 1 /* ensure correct handling of 52-byte AAL0 SDUs expected by atmdump-like apps */ | ||
69 | #define FORE200E_52BYTE_AAL0_SDU | ||
70 | #endif | ||
71 | |||
72 | #include "fore200e.h" | ||
73 | #include "suni.h" | ||
74 | |||
75 | #define FORE200E_VERSION "0.3e" | ||
76 | |||
77 | #define FORE200E "fore200e: " | ||
78 | |||
79 | #if 0 /* override .config */ | ||
80 | #define CONFIG_ATM_FORE200E_DEBUG 1 | ||
81 | #endif | ||
82 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) | ||
83 | #define DPRINTK(level, format, args...) do { if (CONFIG_ATM_FORE200E_DEBUG >= (level)) \ | ||
84 | printk(FORE200E format, ##args); } while (0) | ||
85 | #else | ||
86 | #define DPRINTK(level, format, args...) do {} while (0) | ||
87 | #endif | ||
88 | |||
89 | |||
90 | #define FORE200E_ALIGN(addr, alignment) \ | ||
91 | ((((unsigned long)(addr) + (alignment - 1)) & ~(alignment - 1)) - (unsigned long)(addr)) | ||
92 | |||
93 | #define FORE200E_DMA_INDEX(dma_addr, type, index) ((dma_addr) + (index) * sizeof(type)) | ||
94 | |||
95 | #define FORE200E_INDEX(virt_addr, type, index) (&((type *)(virt_addr))[ index ]) | ||
96 | |||
97 | #define FORE200E_NEXT_ENTRY(index, modulo) (index = ++(index) % (modulo)) | ||
98 | |||
99 | #if 1 | ||
100 | #define ASSERT(expr) if (!(expr)) { \ | ||
101 | printk(FORE200E "assertion failed! %s[%d]: %s\n", \ | ||
102 | __FUNCTION__, __LINE__, #expr); \ | ||
103 | panic(FORE200E "%s", __FUNCTION__); \ | ||
104 | } | ||
105 | #else | ||
106 | #define ASSERT(expr) do {} while (0) | ||
107 | #endif | ||
108 | |||
109 | |||
110 | static const struct atmdev_ops fore200e_ops; | ||
111 | static const struct fore200e_bus fore200e_bus[]; | ||
112 | |||
113 | static LIST_HEAD(fore200e_boards); | ||
114 | |||
115 | |||
116 | MODULE_AUTHOR("Christophe Lizzi - credits to Uwe Dannowski and Heikki Vatiainen"); | ||
117 | MODULE_DESCRIPTION("FORE Systems 200E-series ATM driver - version " FORE200E_VERSION); | ||
118 | MODULE_SUPPORTED_DEVICE("PCA-200E, SBA-200E"); | ||
119 | |||
120 | |||
121 | static const int fore200e_rx_buf_nbr[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { | ||
122 | { BUFFER_S1_NBR, BUFFER_L1_NBR }, | ||
123 | { BUFFER_S2_NBR, BUFFER_L2_NBR } | ||
124 | }; | ||
125 | |||
126 | static const int fore200e_rx_buf_size[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { | ||
127 | { BUFFER_S1_SIZE, BUFFER_L1_SIZE }, | ||
128 | { BUFFER_S2_SIZE, BUFFER_L2_SIZE } | ||
129 | }; | ||
130 | |||
131 | |||
132 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) | ||
133 | static const char* fore200e_traffic_class[] = { "NONE", "UBR", "CBR", "VBR", "ABR", "ANY" }; | ||
134 | #endif | ||
135 | |||
136 | |||
137 | #if 0 /* currently unused */ | ||
138 | static int | ||
139 | fore200e_fore2atm_aal(enum fore200e_aal aal) | ||
140 | { | ||
141 | switch(aal) { | ||
142 | case FORE200E_AAL0: return ATM_AAL0; | ||
143 | case FORE200E_AAL34: return ATM_AAL34; | ||
144 | case FORE200E_AAL5: return ATM_AAL5; | ||
145 | } | ||
146 | |||
147 | return -EINVAL; | ||
148 | } | ||
149 | #endif | ||
150 | |||
151 | |||
152 | static enum fore200e_aal | ||
153 | fore200e_atm2fore_aal(int aal) | ||
154 | { | ||
155 | switch(aal) { | ||
156 | case ATM_AAL0: return FORE200E_AAL0; | ||
157 | case ATM_AAL34: return FORE200E_AAL34; | ||
158 | case ATM_AAL1: | ||
159 | case ATM_AAL2: | ||
160 | case ATM_AAL5: return FORE200E_AAL5; | ||
161 | } | ||
162 | |||
163 | return -EINVAL; | ||
164 | } | ||
165 | |||
166 | |||
167 | static char* | ||
168 | fore200e_irq_itoa(int irq) | ||
169 | { | ||
170 | #if defined(__sparc_v9__) | ||
171 | return __irq_itoa(irq); | ||
172 | #else | ||
173 | static char str[8]; | ||
174 | sprintf(str, "%d", irq); | ||
175 | return str; | ||
176 | #endif | ||
177 | } | ||
178 | |||
179 | |||
180 | static void* | ||
181 | fore200e_kmalloc(int size, int flags) | ||
182 | { | ||
183 | void* chunk = kmalloc(size, flags); | ||
184 | |||
185 | if (chunk) | ||
186 | memset(chunk, 0x00, size); | ||
187 | else | ||
188 | printk(FORE200E "kmalloc() failed, requested size = %d, flags = 0x%x\n", size, flags); | ||
189 | |||
190 | return chunk; | ||
191 | } | ||
192 | |||
193 | |||
194 | static void | ||
195 | fore200e_kfree(void* chunk) | ||
196 | { | ||
197 | kfree(chunk); | ||
198 | } | ||
199 | |||
200 | |||
201 | /* allocate and align a chunk of memory intended to hold the data behing exchanged | ||
202 | between the driver and the adapter (using streaming DVMA) */ | ||
203 | |||
204 | static int | ||
205 | fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, int alignment, int direction) | ||
206 | { | ||
207 | unsigned long offset = 0; | ||
208 | |||
209 | if (alignment <= sizeof(int)) | ||
210 | alignment = 0; | ||
211 | |||
212 | chunk->alloc_size = size + alignment; | ||
213 | chunk->align_size = size; | ||
214 | chunk->direction = direction; | ||
215 | |||
216 | chunk->alloc_addr = fore200e_kmalloc(chunk->alloc_size, GFP_KERNEL | GFP_DMA); | ||
217 | if (chunk->alloc_addr == NULL) | ||
218 | return -ENOMEM; | ||
219 | |||
220 | if (alignment > 0) | ||
221 | offset = FORE200E_ALIGN(chunk->alloc_addr, alignment); | ||
222 | |||
223 | chunk->align_addr = chunk->alloc_addr + offset; | ||
224 | |||
225 | chunk->dma_addr = fore200e->bus->dma_map(fore200e, chunk->align_addr, chunk->align_size, direction); | ||
226 | |||
227 | return 0; | ||
228 | } | ||
229 | |||
230 | |||
231 | /* free a chunk of memory */ | ||
232 | |||
233 | static void | ||
234 | fore200e_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | ||
235 | { | ||
236 | fore200e->bus->dma_unmap(fore200e, chunk->dma_addr, chunk->dma_size, chunk->direction); | ||
237 | |||
238 | fore200e_kfree(chunk->alloc_addr); | ||
239 | } | ||
240 | |||
241 | |||
242 | static void | ||
243 | fore200e_spin(int msecs) | ||
244 | { | ||
245 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | ||
246 | while (time_before(jiffies, timeout)); | ||
247 | } | ||
248 | |||
249 | |||
250 | static int | ||
251 | fore200e_poll(struct fore200e* fore200e, volatile u32* addr, u32 val, int msecs) | ||
252 | { | ||
253 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | ||
254 | int ok; | ||
255 | |||
256 | mb(); | ||
257 | do { | ||
258 | if ((ok = (*addr == val)) || (*addr & STATUS_ERROR)) | ||
259 | break; | ||
260 | |||
261 | } while (time_before(jiffies, timeout)); | ||
262 | |||
263 | #if 1 | ||
264 | if (!ok) { | ||
265 | printk(FORE200E "cmd polling failed, got status 0x%08x, expected 0x%08x\n", | ||
266 | *addr, val); | ||
267 | } | ||
268 | #endif | ||
269 | |||
270 | return ok; | ||
271 | } | ||
272 | |||
273 | |||
274 | static int | ||
275 | fore200e_io_poll(struct fore200e* fore200e, volatile u32 __iomem *addr, u32 val, int msecs) | ||
276 | { | ||
277 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); | ||
278 | int ok; | ||
279 | |||
280 | do { | ||
281 | if ((ok = (fore200e->bus->read(addr) == val))) | ||
282 | break; | ||
283 | |||
284 | } while (time_before(jiffies, timeout)); | ||
285 | |||
286 | #if 1 | ||
287 | if (!ok) { | ||
288 | printk(FORE200E "I/O polling failed, got status 0x%08x, expected 0x%08x\n", | ||
289 | fore200e->bus->read(addr), val); | ||
290 | } | ||
291 | #endif | ||
292 | |||
293 | return ok; | ||
294 | } | ||
295 | |||
296 | |||
297 | static void | ||
298 | fore200e_free_rx_buf(struct fore200e* fore200e) | ||
299 | { | ||
300 | int scheme, magn, nbr; | ||
301 | struct buffer* buffer; | ||
302 | |||
303 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | ||
304 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | ||
305 | |||
306 | if ((buffer = fore200e->host_bsq[ scheme ][ magn ].buffer) != NULL) { | ||
307 | |||
308 | for (nbr = 0; nbr < fore200e_rx_buf_nbr[ scheme ][ magn ]; nbr++) { | ||
309 | |||
310 | struct chunk* data = &buffer[ nbr ].data; | ||
311 | |||
312 | if (data->alloc_addr != NULL) | ||
313 | fore200e_chunk_free(fore200e, data); | ||
314 | } | ||
315 | } | ||
316 | } | ||
317 | } | ||
318 | } | ||
319 | |||
320 | |||
321 | static void | ||
322 | fore200e_uninit_bs_queue(struct fore200e* fore200e) | ||
323 | { | ||
324 | int scheme, magn; | ||
325 | |||
326 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | ||
327 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | ||
328 | |||
329 | struct chunk* status = &fore200e->host_bsq[ scheme ][ magn ].status; | ||
330 | struct chunk* rbd_block = &fore200e->host_bsq[ scheme ][ magn ].rbd_block; | ||
331 | |||
332 | if (status->alloc_addr) | ||
333 | fore200e->bus->dma_chunk_free(fore200e, status); | ||
334 | |||
335 | if (rbd_block->alloc_addr) | ||
336 | fore200e->bus->dma_chunk_free(fore200e, rbd_block); | ||
337 | } | ||
338 | } | ||
339 | } | ||
340 | |||
341 | |||
342 | static int | ||
343 | fore200e_reset(struct fore200e* fore200e, int diag) | ||
344 | { | ||
345 | int ok; | ||
346 | |||
347 | fore200e->cp_monitor = fore200e->virt_base + FORE200E_CP_MONITOR_OFFSET; | ||
348 | |||
349 | fore200e->bus->write(BSTAT_COLD_START, &fore200e->cp_monitor->bstat); | ||
350 | |||
351 | fore200e->bus->reset(fore200e); | ||
352 | |||
353 | if (diag) { | ||
354 | ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_SELFTEST_OK, 1000); | ||
355 | if (ok == 0) { | ||
356 | |||
357 | printk(FORE200E "device %s self-test failed\n", fore200e->name); | ||
358 | return -ENODEV; | ||
359 | } | ||
360 | |||
361 | printk(FORE200E "device %s self-test passed\n", fore200e->name); | ||
362 | |||
363 | fore200e->state = FORE200E_STATE_RESET; | ||
364 | } | ||
365 | |||
366 | return 0; | ||
367 | } | ||
368 | |||
369 | |||
370 | static void | ||
371 | fore200e_shutdown(struct fore200e* fore200e) | ||
372 | { | ||
373 | printk(FORE200E "removing device %s at 0x%lx, IRQ %s\n", | ||
374 | fore200e->name, fore200e->phys_base, | ||
375 | fore200e_irq_itoa(fore200e->irq)); | ||
376 | |||
377 | if (fore200e->state > FORE200E_STATE_RESET) { | ||
378 | /* first, reset the board to prevent further interrupts or data transfers */ | ||
379 | fore200e_reset(fore200e, 0); | ||
380 | } | ||
381 | |||
382 | /* then, release all allocated resources */ | ||
383 | switch(fore200e->state) { | ||
384 | |||
385 | case FORE200E_STATE_COMPLETE: | ||
386 | if (fore200e->stats) | ||
387 | kfree(fore200e->stats); | ||
388 | |||
389 | case FORE200E_STATE_IRQ: | ||
390 | free_irq(fore200e->irq, fore200e->atm_dev); | ||
391 | |||
392 | case FORE200E_STATE_ALLOC_BUF: | ||
393 | fore200e_free_rx_buf(fore200e); | ||
394 | |||
395 | case FORE200E_STATE_INIT_BSQ: | ||
396 | fore200e_uninit_bs_queue(fore200e); | ||
397 | |||
398 | case FORE200E_STATE_INIT_RXQ: | ||
399 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.status); | ||
400 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.rpd); | ||
401 | |||
402 | case FORE200E_STATE_INIT_TXQ: | ||
403 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.status); | ||
404 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.tpd); | ||
405 | |||
406 | case FORE200E_STATE_INIT_CMDQ: | ||
407 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_cmdq.status); | ||
408 | |||
409 | case FORE200E_STATE_INITIALIZE: | ||
410 | /* nothing to do for that state */ | ||
411 | |||
412 | case FORE200E_STATE_START_FW: | ||
413 | /* nothing to do for that state */ | ||
414 | |||
415 | case FORE200E_STATE_LOAD_FW: | ||
416 | /* nothing to do for that state */ | ||
417 | |||
418 | case FORE200E_STATE_RESET: | ||
419 | /* nothing to do for that state */ | ||
420 | |||
421 | case FORE200E_STATE_MAP: | ||
422 | fore200e->bus->unmap(fore200e); | ||
423 | |||
424 | case FORE200E_STATE_CONFIGURE: | ||
425 | /* nothing to do for that state */ | ||
426 | |||
427 | case FORE200E_STATE_REGISTER: | ||
428 | /* XXX shouldn't we *start* by deregistering the device? */ | ||
429 | atm_dev_deregister(fore200e->atm_dev); | ||
430 | |||
431 | case FORE200E_STATE_BLANK: | ||
432 | /* nothing to do for that state */ | ||
433 | break; | ||
434 | } | ||
435 | } | ||
436 | |||
437 | |||
438 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
439 | |||
440 | static u32 fore200e_pca_read(volatile u32 __iomem *addr) | ||
441 | { | ||
442 | /* on big-endian hosts, the board is configured to convert | ||
443 | the endianess of slave RAM accesses */ | ||
444 | return le32_to_cpu(readl(addr)); | ||
445 | } | ||
446 | |||
447 | |||
448 | static void fore200e_pca_write(u32 val, volatile u32 __iomem *addr) | ||
449 | { | ||
450 | /* on big-endian hosts, the board is configured to convert | ||
451 | the endianess of slave RAM accesses */ | ||
452 | writel(cpu_to_le32(val), addr); | ||
453 | } | ||
454 | |||
455 | |||
456 | static u32 | ||
457 | fore200e_pca_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction) | ||
458 | { | ||
459 | u32 dma_addr = pci_map_single((struct pci_dev*)fore200e->bus_dev, virt_addr, size, direction); | ||
460 | |||
461 | DPRINTK(3, "PCI DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d, --> dma_addr = 0x%08x\n", | ||
462 | virt_addr, size, direction, dma_addr); | ||
463 | |||
464 | return dma_addr; | ||
465 | } | ||
466 | |||
467 | |||
468 | static void | ||
469 | fore200e_pca_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | ||
470 | { | ||
471 | DPRINTK(3, "PCI DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d\n", | ||
472 | dma_addr, size, direction); | ||
473 | |||
474 | pci_unmap_single((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
475 | } | ||
476 | |||
477 | |||
478 | static void | ||
479 | fore200e_pca_dma_sync_for_cpu(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_cpu((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
484 | } | ||
485 | |||
486 | static void | ||
487 | fore200e_pca_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | ||
488 | { | ||
489 | DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | ||
490 | |||
491 | pci_dma_sync_single_for_device((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
492 | } | ||
493 | |||
494 | |||
495 | /* allocate a DMA consistent chunk of memory intended to act as a communication mechanism | ||
496 | (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */ | ||
497 | |||
498 | static int | ||
499 | fore200e_pca_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, | ||
500 | int size, int nbr, int alignment) | ||
501 | { | ||
502 | /* returned chunks are page-aligned */ | ||
503 | chunk->alloc_size = size * nbr; | ||
504 | chunk->alloc_addr = pci_alloc_consistent((struct pci_dev*)fore200e->bus_dev, | ||
505 | chunk->alloc_size, | ||
506 | &chunk->dma_addr); | ||
507 | |||
508 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) | ||
509 | return -ENOMEM; | ||
510 | |||
511 | chunk->align_addr = chunk->alloc_addr; | ||
512 | |||
513 | return 0; | ||
514 | } | ||
515 | |||
516 | |||
517 | /* free a DMA consistent chunk of memory */ | ||
518 | |||
519 | static void | ||
520 | fore200e_pca_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | ||
521 | { | ||
522 | pci_free_consistent((struct pci_dev*)fore200e->bus_dev, | ||
523 | chunk->alloc_size, | ||
524 | chunk->alloc_addr, | ||
525 | chunk->dma_addr); | ||
526 | } | ||
527 | |||
528 | |||
529 | static int | ||
530 | fore200e_pca_irq_check(struct fore200e* fore200e) | ||
531 | { | ||
532 | /* this is a 1 bit register */ | ||
533 | int irq_posted = readl(fore200e->regs.pca.psr); | ||
534 | |||
535 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG == 2) | ||
536 | if (irq_posted && (readl(fore200e->regs.pca.hcr) & PCA200E_HCR_OUTFULL)) { | ||
537 | DPRINTK(2,"FIFO OUT full, device %d\n", fore200e->atm_dev->number); | ||
538 | } | ||
539 | #endif | ||
540 | |||
541 | return irq_posted; | ||
542 | } | ||
543 | |||
544 | |||
545 | static void | ||
546 | fore200e_pca_irq_ack(struct fore200e* fore200e) | ||
547 | { | ||
548 | writel(PCA200E_HCR_CLRINTR, fore200e->regs.pca.hcr); | ||
549 | } | ||
550 | |||
551 | |||
552 | static void | ||
553 | fore200e_pca_reset(struct fore200e* fore200e) | ||
554 | { | ||
555 | writel(PCA200E_HCR_RESET, fore200e->regs.pca.hcr); | ||
556 | fore200e_spin(10); | ||
557 | writel(0, fore200e->regs.pca.hcr); | ||
558 | } | ||
559 | |||
560 | |||
561 | static int __init | ||
562 | fore200e_pca_map(struct fore200e* fore200e) | ||
563 | { | ||
564 | DPRINTK(2, "device %s being mapped in memory\n", fore200e->name); | ||
565 | |||
566 | fore200e->virt_base = ioremap(fore200e->phys_base, PCA200E_IOSPACE_LENGTH); | ||
567 | |||
568 | if (fore200e->virt_base == NULL) { | ||
569 | printk(FORE200E "can't map device %s\n", fore200e->name); | ||
570 | return -EFAULT; | ||
571 | } | ||
572 | |||
573 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); | ||
574 | |||
575 | /* gain access to the PCA specific registers */ | ||
576 | fore200e->regs.pca.hcr = fore200e->virt_base + PCA200E_HCR_OFFSET; | ||
577 | fore200e->regs.pca.imr = fore200e->virt_base + PCA200E_IMR_OFFSET; | ||
578 | fore200e->regs.pca.psr = fore200e->virt_base + PCA200E_PSR_OFFSET; | ||
579 | |||
580 | fore200e->state = FORE200E_STATE_MAP; | ||
581 | return 0; | ||
582 | } | ||
583 | |||
584 | |||
585 | static void | ||
586 | fore200e_pca_unmap(struct fore200e* fore200e) | ||
587 | { | ||
588 | DPRINTK(2, "device %s being unmapped from memory\n", fore200e->name); | ||
589 | |||
590 | if (fore200e->virt_base != NULL) | ||
591 | iounmap(fore200e->virt_base); | ||
592 | } | ||
593 | |||
594 | |||
595 | static int __init | ||
596 | fore200e_pca_configure(struct fore200e* fore200e) | ||
597 | { | ||
598 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; | ||
599 | u8 master_ctrl, latency; | ||
600 | |||
601 | DPRINTK(2, "device %s being configured\n", fore200e->name); | ||
602 | |||
603 | if ((pci_dev->irq == 0) || (pci_dev->irq == 0xFF)) { | ||
604 | printk(FORE200E "incorrect IRQ setting - misconfigured PCI-PCI bridge?\n"); | ||
605 | return -EIO; | ||
606 | } | ||
607 | |||
608 | pci_read_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, &master_ctrl); | ||
609 | |||
610 | master_ctrl = master_ctrl | ||
611 | #if defined(__BIG_ENDIAN) | ||
612 | /* request the PCA board to convert the endianess of slave RAM accesses */ | ||
613 | | PCA200E_CTRL_CONVERT_ENDIAN | ||
614 | #endif | ||
615 | #if 0 | ||
616 | | PCA200E_CTRL_DIS_CACHE_RD | ||
617 | | PCA200E_CTRL_DIS_WRT_INVAL | ||
618 | | PCA200E_CTRL_ENA_CONT_REQ_MODE | ||
619 | | PCA200E_CTRL_2_CACHE_WRT_INVAL | ||
620 | #endif | ||
621 | | PCA200E_CTRL_LARGE_PCI_BURSTS; | ||
622 | |||
623 | pci_write_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, master_ctrl); | ||
624 | |||
625 | /* raise latency from 32 (default) to 192, as this seems to prevent NIC | ||
626 | lockups (under heavy rx loads) due to continuous 'FIFO OUT full' condition. | ||
627 | this may impact the performances of other PCI devices on the same bus, though */ | ||
628 | latency = 192; | ||
629 | pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); | ||
630 | |||
631 | fore200e->state = FORE200E_STATE_CONFIGURE; | ||
632 | return 0; | ||
633 | } | ||
634 | |||
635 | |||
636 | static int __init | ||
637 | fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom) | ||
638 | { | ||
639 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
640 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | ||
641 | struct prom_opcode opcode; | ||
642 | int ok; | ||
643 | u32 prom_dma; | ||
644 | |||
645 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | ||
646 | |||
647 | opcode.opcode = OPCODE_GET_PROM; | ||
648 | opcode.pad = 0; | ||
649 | |||
650 | prom_dma = fore200e->bus->dma_map(fore200e, prom, sizeof(struct prom_data), DMA_FROM_DEVICE); | ||
651 | |||
652 | fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr); | ||
653 | |||
654 | *entry->status = STATUS_PENDING; | ||
655 | |||
656 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.prom_block.opcode); | ||
657 | |||
658 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | ||
659 | |||
660 | *entry->status = STATUS_FREE; | ||
661 | |||
662 | fore200e->bus->dma_unmap(fore200e, prom_dma, sizeof(struct prom_data), DMA_FROM_DEVICE); | ||
663 | |||
664 | if (ok == 0) { | ||
665 | printk(FORE200E "unable to get PROM data from device %s\n", fore200e->name); | ||
666 | return -EIO; | ||
667 | } | ||
668 | |||
669 | #if defined(__BIG_ENDIAN) | ||
670 | |||
671 | #define swap_here(addr) (*((u32*)(addr)) = swab32( *((u32*)(addr)) )) | ||
672 | |||
673 | /* MAC address is stored as little-endian */ | ||
674 | swap_here(&prom->mac_addr[0]); | ||
675 | swap_here(&prom->mac_addr[4]); | ||
676 | #endif | ||
677 | |||
678 | return 0; | ||
679 | } | ||
680 | |||
681 | |||
682 | static int | ||
683 | fore200e_pca_proc_read(struct fore200e* fore200e, char *page) | ||
684 | { | ||
685 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; | ||
686 | |||
687 | return sprintf(page, " PCI bus/slot/function:\t%d/%d/%d\n", | ||
688 | pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); | ||
689 | } | ||
690 | |||
691 | #endif /* CONFIG_ATM_FORE200E_PCA */ | ||
692 | |||
693 | |||
694 | #ifdef CONFIG_ATM_FORE200E_SBA | ||
695 | |||
696 | static u32 | ||
697 | fore200e_sba_read(volatile u32 __iomem *addr) | ||
698 | { | ||
699 | return sbus_readl(addr); | ||
700 | } | ||
701 | |||
702 | |||
703 | static void | ||
704 | fore200e_sba_write(u32 val, volatile u32 __iomem *addr) | ||
705 | { | ||
706 | sbus_writel(val, addr); | ||
707 | } | ||
708 | |||
709 | |||
710 | static u32 | ||
711 | fore200e_sba_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction) | ||
712 | { | ||
713 | u32 dma_addr = sbus_map_single((struct sbus_dev*)fore200e->bus_dev, virt_addr, size, direction); | ||
714 | |||
715 | DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08x\n", | ||
716 | virt_addr, size, direction, dma_addr); | ||
717 | |||
718 | return dma_addr; | ||
719 | } | ||
720 | |||
721 | |||
722 | static void | ||
723 | fore200e_sba_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | ||
724 | { | ||
725 | DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,\n", | ||
726 | dma_addr, size, direction); | ||
727 | |||
728 | sbus_unmap_single((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
729 | } | ||
730 | |||
731 | |||
732 | static void | ||
733 | fore200e_sba_dma_sync_for_cpu(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_cpu((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
738 | } | ||
739 | |||
740 | static void | ||
741 | fore200e_sba_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction) | ||
742 | { | ||
743 | DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); | ||
744 | |||
745 | sbus_dma_sync_single_for_device((struct sbus_dev*)fore200e->bus_dev, dma_addr, size, direction); | ||
746 | } | ||
747 | |||
748 | |||
749 | /* allocate a DVMA consistent chunk of memory intended to act as a communication mechanism | ||
750 | (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */ | ||
751 | |||
752 | static int | ||
753 | fore200e_sba_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, | ||
754 | int size, int nbr, int alignment) | ||
755 | { | ||
756 | chunk->alloc_size = chunk->align_size = size * nbr; | ||
757 | |||
758 | /* returned chunks are page-aligned */ | ||
759 | chunk->alloc_addr = sbus_alloc_consistent((struct sbus_dev*)fore200e->bus_dev, | ||
760 | chunk->alloc_size, | ||
761 | &chunk->dma_addr); | ||
762 | |||
763 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) | ||
764 | return -ENOMEM; | ||
765 | |||
766 | chunk->align_addr = chunk->alloc_addr; | ||
767 | |||
768 | return 0; | ||
769 | } | ||
770 | |||
771 | |||
772 | /* free a DVMA consistent chunk of memory */ | ||
773 | |||
774 | static void | ||
775 | fore200e_sba_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk) | ||
776 | { | ||
777 | sbus_free_consistent((struct sbus_dev*)fore200e->bus_dev, | ||
778 | chunk->alloc_size, | ||
779 | chunk->alloc_addr, | ||
780 | chunk->dma_addr); | ||
781 | } | ||
782 | |||
783 | |||
784 | static void | ||
785 | fore200e_sba_irq_enable(struct fore200e* fore200e) | ||
786 | { | ||
787 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; | ||
788 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_ENA, fore200e->regs.sba.hcr); | ||
789 | } | ||
790 | |||
791 | |||
792 | static int | ||
793 | fore200e_sba_irq_check(struct fore200e* fore200e) | ||
794 | { | ||
795 | return fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_INTR_REQ; | ||
796 | } | ||
797 | |||
798 | |||
799 | static void | ||
800 | fore200e_sba_irq_ack(struct fore200e* fore200e) | ||
801 | { | ||
802 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; | ||
803 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_CLR, fore200e->regs.sba.hcr); | ||
804 | } | ||
805 | |||
806 | |||
807 | static void | ||
808 | fore200e_sba_reset(struct fore200e* fore200e) | ||
809 | { | ||
810 | fore200e->bus->write(SBA200E_HCR_RESET, fore200e->regs.sba.hcr); | ||
811 | fore200e_spin(10); | ||
812 | fore200e->bus->write(0, fore200e->regs.sba.hcr); | ||
813 | } | ||
814 | |||
815 | |||
816 | static int __init | ||
817 | fore200e_sba_map(struct fore200e* fore200e) | ||
818 | { | ||
819 | struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev; | ||
820 | unsigned int bursts; | ||
821 | |||
822 | /* gain access to the SBA specific registers */ | ||
823 | fore200e->regs.sba.hcr = sbus_ioremap(&sbus_dev->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR"); | ||
824 | fore200e->regs.sba.bsr = sbus_ioremap(&sbus_dev->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR"); | ||
825 | fore200e->regs.sba.isr = sbus_ioremap(&sbus_dev->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR"); | ||
826 | fore200e->virt_base = sbus_ioremap(&sbus_dev->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM"); | ||
827 | |||
828 | if (fore200e->virt_base == NULL) { | ||
829 | printk(FORE200E "unable to map RAM of device %s\n", fore200e->name); | ||
830 | return -EFAULT; | ||
831 | } | ||
832 | |||
833 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); | ||
834 | |||
835 | fore200e->bus->write(0x02, fore200e->regs.sba.isr); /* XXX hardwired interrupt level */ | ||
836 | |||
837 | /* get the supported DVMA burst sizes */ | ||
838 | bursts = prom_getintdefault(sbus_dev->bus->prom_node, "burst-sizes", 0x00); | ||
839 | |||
840 | if (sbus_can_dma_64bit(sbus_dev)) | ||
841 | sbus_set_sbus64(sbus_dev, bursts); | ||
842 | |||
843 | fore200e->state = FORE200E_STATE_MAP; | ||
844 | return 0; | ||
845 | } | ||
846 | |||
847 | |||
848 | static void | ||
849 | fore200e_sba_unmap(struct fore200e* fore200e) | ||
850 | { | ||
851 | sbus_iounmap(fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH); | ||
852 | sbus_iounmap(fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH); | ||
853 | sbus_iounmap(fore200e->regs.sba.isr, SBA200E_ISR_LENGTH); | ||
854 | sbus_iounmap(fore200e->virt_base, SBA200E_RAM_LENGTH); | ||
855 | } | ||
856 | |||
857 | |||
858 | static int __init | ||
859 | fore200e_sba_configure(struct fore200e* fore200e) | ||
860 | { | ||
861 | fore200e->state = FORE200E_STATE_CONFIGURE; | ||
862 | return 0; | ||
863 | } | ||
864 | |||
865 | |||
866 | static struct fore200e* __init | ||
867 | fore200e_sba_detect(const struct fore200e_bus* bus, int index) | ||
868 | { | ||
869 | struct fore200e* fore200e; | ||
870 | struct sbus_bus* sbus_bus; | ||
871 | struct sbus_dev* sbus_dev = NULL; | ||
872 | |||
873 | unsigned int count = 0; | ||
874 | |||
875 | for_each_sbus (sbus_bus) { | ||
876 | for_each_sbusdev (sbus_dev, sbus_bus) { | ||
877 | if (strcmp(sbus_dev->prom_name, SBA200E_PROM_NAME) == 0) { | ||
878 | if (count >= index) | ||
879 | goto found; | ||
880 | count++; | ||
881 | } | ||
882 | } | ||
883 | } | ||
884 | return NULL; | ||
885 | |||
886 | found: | ||
887 | if (sbus_dev->num_registers != 4) { | ||
888 | printk(FORE200E "this %s device has %d instead of 4 registers\n", | ||
889 | bus->model_name, sbus_dev->num_registers); | ||
890 | return NULL; | ||
891 | } | ||
892 | |||
893 | fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL); | ||
894 | if (fore200e == NULL) | ||
895 | return NULL; | ||
896 | |||
897 | fore200e->bus = bus; | ||
898 | fore200e->bus_dev = sbus_dev; | ||
899 | fore200e->irq = sbus_dev->irqs[ 0 ]; | ||
900 | |||
901 | fore200e->phys_base = (unsigned long)sbus_dev; | ||
902 | |||
903 | sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1); | ||
904 | |||
905 | return fore200e; | ||
906 | } | ||
907 | |||
908 | |||
909 | static int __init | ||
910 | fore200e_sba_prom_read(struct fore200e* fore200e, struct prom_data* prom) | ||
911 | { | ||
912 | struct sbus_dev* sbus_dev = (struct sbus_dev*) fore200e->bus_dev; | ||
913 | int len; | ||
914 | |||
915 | len = prom_getproperty(sbus_dev->prom_node, "macaddrlo2", &prom->mac_addr[ 4 ], 4); | ||
916 | if (len < 0) | ||
917 | return -EBUSY; | ||
918 | |||
919 | len = prom_getproperty(sbus_dev->prom_node, "macaddrhi4", &prom->mac_addr[ 2 ], 4); | ||
920 | if (len < 0) | ||
921 | return -EBUSY; | ||
922 | |||
923 | prom_getproperty(sbus_dev->prom_node, "serialnumber", | ||
924 | (char*)&prom->serial_number, sizeof(prom->serial_number)); | ||
925 | |||
926 | prom_getproperty(sbus_dev->prom_node, "promversion", | ||
927 | (char*)&prom->hw_revision, sizeof(prom->hw_revision)); | ||
928 | |||
929 | return 0; | ||
930 | } | ||
931 | |||
932 | |||
933 | static int | ||
934 | fore200e_sba_proc_read(struct fore200e* fore200e, char *page) | ||
935 | { | ||
936 | struct sbus_dev* sbus_dev = (struct sbus_dev*)fore200e->bus_dev; | ||
937 | |||
938 | return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n", sbus_dev->slot, sbus_dev->prom_name); | ||
939 | } | ||
940 | #endif /* CONFIG_ATM_FORE200E_SBA */ | ||
941 | |||
942 | |||
943 | static void | ||
944 | fore200e_tx_irq(struct fore200e* fore200e) | ||
945 | { | ||
946 | struct host_txq* txq = &fore200e->host_txq; | ||
947 | struct host_txq_entry* entry; | ||
948 | struct atm_vcc* vcc; | ||
949 | struct fore200e_vc_map* vc_map; | ||
950 | |||
951 | if (fore200e->host_txq.txing == 0) | ||
952 | return; | ||
953 | |||
954 | for (;;) { | ||
955 | |||
956 | entry = &txq->host_entry[ txq->tail ]; | ||
957 | |||
958 | if ((*entry->status & STATUS_COMPLETE) == 0) { | ||
959 | break; | ||
960 | } | ||
961 | |||
962 | DPRINTK(3, "TX COMPLETED: entry = %p [tail = %d], vc_map = %p, skb = %p\n", | ||
963 | entry, txq->tail, entry->vc_map, entry->skb); | ||
964 | |||
965 | /* free copy of misaligned data */ | ||
966 | if (entry->data) | ||
967 | kfree(entry->data); | ||
968 | |||
969 | /* remove DMA mapping */ | ||
970 | fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length, | ||
971 | DMA_TO_DEVICE); | ||
972 | |||
973 | vc_map = entry->vc_map; | ||
974 | |||
975 | /* vcc closed since the time the entry was submitted for tx? */ | ||
976 | if ((vc_map->vcc == NULL) || | ||
977 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { | ||
978 | |||
979 | DPRINTK(1, "no ready vcc found for PDU sent on device %d\n", | ||
980 | fore200e->atm_dev->number); | ||
981 | |||
982 | dev_kfree_skb_any(entry->skb); | ||
983 | } | ||
984 | else { | ||
985 | ASSERT(vc_map->vcc); | ||
986 | |||
987 | /* vcc closed then immediately re-opened? */ | ||
988 | if (vc_map->incarn != entry->incarn) { | ||
989 | |||
990 | /* when a vcc is closed, some PDUs may be still pending in the tx queue. | ||
991 | if the same vcc is immediately re-opened, those pending PDUs must | ||
992 | not be popped after the completion of their emission, as they refer | ||
993 | to the prior incarnation of that vcc. otherwise, sk_atm(vcc)->sk_wmem_alloc | ||
994 | would be decremented by the size of the (unrelated) skb, possibly | ||
995 | leading to a negative sk->sk_wmem_alloc count, ultimately freezing the vcc. | ||
996 | we thus bind the tx entry to the current incarnation of the vcc | ||
997 | when the entry is submitted for tx. When the tx later completes, | ||
998 | if the incarnation number of the tx entry does not match the one | ||
999 | of the vcc, then this implies that the vcc has been closed then re-opened. | ||
1000 | we thus just drop the skb here. */ | ||
1001 | |||
1002 | DPRINTK(1, "vcc closed-then-re-opened; dropping PDU sent on device %d\n", | ||
1003 | fore200e->atm_dev->number); | ||
1004 | |||
1005 | dev_kfree_skb_any(entry->skb); | ||
1006 | } | ||
1007 | else { | ||
1008 | vcc = vc_map->vcc; | ||
1009 | ASSERT(vcc); | ||
1010 | |||
1011 | /* notify tx completion */ | ||
1012 | if (vcc->pop) { | ||
1013 | vcc->pop(vcc, entry->skb); | ||
1014 | } | ||
1015 | else { | ||
1016 | dev_kfree_skb_any(entry->skb); | ||
1017 | } | ||
1018 | #if 1 | ||
1019 | /* race fixed by the above incarnation mechanism, but... */ | ||
1020 | if (atomic_read(&sk_atm(vcc)->sk_wmem_alloc) < 0) { | ||
1021 | atomic_set(&sk_atm(vcc)->sk_wmem_alloc, 0); | ||
1022 | } | ||
1023 | #endif | ||
1024 | /* check error condition */ | ||
1025 | if (*entry->status & STATUS_ERROR) | ||
1026 | atomic_inc(&vcc->stats->tx_err); | ||
1027 | else | ||
1028 | atomic_inc(&vcc->stats->tx); | ||
1029 | } | ||
1030 | } | ||
1031 | |||
1032 | *entry->status = STATUS_FREE; | ||
1033 | |||
1034 | fore200e->host_txq.txing--; | ||
1035 | |||
1036 | FORE200E_NEXT_ENTRY(txq->tail, QUEUE_SIZE_TX); | ||
1037 | } | ||
1038 | } | ||
1039 | |||
1040 | |||
1041 | #ifdef FORE200E_BSQ_DEBUG | ||
1042 | int bsq_audit(int where, struct host_bsq* bsq, int scheme, int magn) | ||
1043 | { | ||
1044 | struct buffer* buffer; | ||
1045 | int count = 0; | ||
1046 | |||
1047 | buffer = bsq->freebuf; | ||
1048 | while (buffer) { | ||
1049 | |||
1050 | if (buffer->supplied) { | ||
1051 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld supplied but in free list!\n", | ||
1052 | where, scheme, magn, buffer->index); | ||
1053 | } | ||
1054 | |||
1055 | if (buffer->magn != magn) { | ||
1056 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected magn = %d\n", | ||
1057 | where, scheme, magn, buffer->index, buffer->magn); | ||
1058 | } | ||
1059 | |||
1060 | if (buffer->scheme != scheme) { | ||
1061 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected scheme = %d\n", | ||
1062 | where, scheme, magn, buffer->index, buffer->scheme); | ||
1063 | } | ||
1064 | |||
1065 | if ((buffer->index < 0) || (buffer->index >= fore200e_rx_buf_nbr[ scheme ][ magn ])) { | ||
1066 | printk(FORE200E "bsq_audit(%d): queue %d.%d, out of range buffer index = %ld !\n", | ||
1067 | where, scheme, magn, buffer->index); | ||
1068 | } | ||
1069 | |||
1070 | count++; | ||
1071 | buffer = buffer->next; | ||
1072 | } | ||
1073 | |||
1074 | if (count != bsq->freebuf_count) { | ||
1075 | printk(FORE200E "bsq_audit(%d): queue %d.%d, %d bufs in free list, but freebuf_count = %d\n", | ||
1076 | where, scheme, magn, count, bsq->freebuf_count); | ||
1077 | } | ||
1078 | return 0; | ||
1079 | } | ||
1080 | #endif | ||
1081 | |||
1082 | |||
1083 | static void | ||
1084 | fore200e_supply(struct fore200e* fore200e) | ||
1085 | { | ||
1086 | int scheme, magn, i; | ||
1087 | |||
1088 | struct host_bsq* bsq; | ||
1089 | struct host_bsq_entry* entry; | ||
1090 | struct buffer* buffer; | ||
1091 | |||
1092 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | ||
1093 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | ||
1094 | |||
1095 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | ||
1096 | |||
1097 | #ifdef FORE200E_BSQ_DEBUG | ||
1098 | bsq_audit(1, bsq, scheme, magn); | ||
1099 | #endif | ||
1100 | while (bsq->freebuf_count >= RBD_BLK_SIZE) { | ||
1101 | |||
1102 | DPRINTK(2, "supplying %d rx buffers to queue %d / %d, freebuf_count = %d\n", | ||
1103 | RBD_BLK_SIZE, scheme, magn, bsq->freebuf_count); | ||
1104 | |||
1105 | entry = &bsq->host_entry[ bsq->head ]; | ||
1106 | |||
1107 | for (i = 0; i < RBD_BLK_SIZE; i++) { | ||
1108 | |||
1109 | /* take the first buffer in the free buffer list */ | ||
1110 | buffer = bsq->freebuf; | ||
1111 | if (!buffer) { | ||
1112 | printk(FORE200E "no more free bufs in queue %d.%d, but freebuf_count = %d\n", | ||
1113 | scheme, magn, bsq->freebuf_count); | ||
1114 | return; | ||
1115 | } | ||
1116 | bsq->freebuf = buffer->next; | ||
1117 | |||
1118 | #ifdef FORE200E_BSQ_DEBUG | ||
1119 | if (buffer->supplied) | ||
1120 | printk(FORE200E "queue %d.%d, buffer %lu already supplied\n", | ||
1121 | scheme, magn, buffer->index); | ||
1122 | buffer->supplied = 1; | ||
1123 | #endif | ||
1124 | entry->rbd_block->rbd[ i ].buffer_haddr = buffer->data.dma_addr; | ||
1125 | entry->rbd_block->rbd[ i ].handle = FORE200E_BUF2HDL(buffer); | ||
1126 | } | ||
1127 | |||
1128 | FORE200E_NEXT_ENTRY(bsq->head, QUEUE_SIZE_BS); | ||
1129 | |||
1130 | /* decrease accordingly the number of free rx buffers */ | ||
1131 | bsq->freebuf_count -= RBD_BLK_SIZE; | ||
1132 | |||
1133 | *entry->status = STATUS_PENDING; | ||
1134 | fore200e->bus->write(entry->rbd_block_dma, &entry->cp_entry->rbd_block_haddr); | ||
1135 | } | ||
1136 | } | ||
1137 | } | ||
1138 | } | ||
1139 | |||
1140 | |||
1141 | static int | ||
1142 | fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rpd) | ||
1143 | { | ||
1144 | struct sk_buff* skb; | ||
1145 | struct buffer* buffer; | ||
1146 | struct fore200e_vcc* fore200e_vcc; | ||
1147 | int i, pdu_len = 0; | ||
1148 | #ifdef FORE200E_52BYTE_AAL0_SDU | ||
1149 | u32 cell_header = 0; | ||
1150 | #endif | ||
1151 | |||
1152 | ASSERT(vcc); | ||
1153 | |||
1154 | fore200e_vcc = FORE200E_VCC(vcc); | ||
1155 | ASSERT(fore200e_vcc); | ||
1156 | |||
1157 | #ifdef FORE200E_52BYTE_AAL0_SDU | ||
1158 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.rxtp.max_sdu == ATM_AAL0_SDU)) { | ||
1159 | |||
1160 | cell_header = (rpd->atm_header.gfc << ATM_HDR_GFC_SHIFT) | | ||
1161 | (rpd->atm_header.vpi << ATM_HDR_VPI_SHIFT) | | ||
1162 | (rpd->atm_header.vci << ATM_HDR_VCI_SHIFT) | | ||
1163 | (rpd->atm_header.plt << ATM_HDR_PTI_SHIFT) | | ||
1164 | rpd->atm_header.clp; | ||
1165 | pdu_len = 4; | ||
1166 | } | ||
1167 | #endif | ||
1168 | |||
1169 | /* compute total PDU length */ | ||
1170 | for (i = 0; i < rpd->nseg; i++) | ||
1171 | pdu_len += rpd->rsd[ i ].length; | ||
1172 | |||
1173 | skb = alloc_skb(pdu_len, GFP_ATOMIC); | ||
1174 | if (skb == NULL) { | ||
1175 | DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); | ||
1176 | |||
1177 | atomic_inc(&vcc->stats->rx_drop); | ||
1178 | return -ENOMEM; | ||
1179 | } | ||
1180 | |||
1181 | do_gettimeofday(&skb->stamp); | ||
1182 | |||
1183 | #ifdef FORE200E_52BYTE_AAL0_SDU | ||
1184 | if (cell_header) { | ||
1185 | *((u32*)skb_put(skb, 4)) = cell_header; | ||
1186 | } | ||
1187 | #endif | ||
1188 | |||
1189 | /* reassemble segments */ | ||
1190 | for (i = 0; i < rpd->nseg; i++) { | ||
1191 | |||
1192 | /* rebuild rx buffer address from rsd handle */ | ||
1193 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); | ||
1194 | |||
1195 | /* Make device DMA transfer visible to CPU. */ | ||
1196 | fore200e->bus->dma_sync_for_cpu(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); | ||
1197 | |||
1198 | memcpy(skb_put(skb, rpd->rsd[ i ].length), buffer->data.align_addr, rpd->rsd[ i ].length); | ||
1199 | |||
1200 | /* Now let the device get at it again. */ | ||
1201 | fore200e->bus->dma_sync_for_device(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); | ||
1202 | } | ||
1203 | |||
1204 | DPRINTK(3, "rx skb: len = %d, truesize = %d\n", skb->len, skb->truesize); | ||
1205 | |||
1206 | if (pdu_len < fore200e_vcc->rx_min_pdu) | ||
1207 | fore200e_vcc->rx_min_pdu = pdu_len; | ||
1208 | if (pdu_len > fore200e_vcc->rx_max_pdu) | ||
1209 | fore200e_vcc->rx_max_pdu = pdu_len; | ||
1210 | fore200e_vcc->rx_pdu++; | ||
1211 | |||
1212 | /* push PDU */ | ||
1213 | if (atm_charge(vcc, skb->truesize) == 0) { | ||
1214 | |||
1215 | DPRINTK(2, "receive buffers saturated for %d.%d.%d - PDU dropped\n", | ||
1216 | vcc->itf, vcc->vpi, vcc->vci); | ||
1217 | |||
1218 | dev_kfree_skb_any(skb); | ||
1219 | |||
1220 | atomic_inc(&vcc->stats->rx_drop); | ||
1221 | return -ENOMEM; | ||
1222 | } | ||
1223 | |||
1224 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | ||
1225 | |||
1226 | vcc->push(vcc, skb); | ||
1227 | atomic_inc(&vcc->stats->rx); | ||
1228 | |||
1229 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | ||
1230 | |||
1231 | return 0; | ||
1232 | } | ||
1233 | |||
1234 | |||
1235 | static void | ||
1236 | fore200e_collect_rpd(struct fore200e* fore200e, struct rpd* rpd) | ||
1237 | { | ||
1238 | struct host_bsq* bsq; | ||
1239 | struct buffer* buffer; | ||
1240 | int i; | ||
1241 | |||
1242 | for (i = 0; i < rpd->nseg; i++) { | ||
1243 | |||
1244 | /* rebuild rx buffer address from rsd handle */ | ||
1245 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); | ||
1246 | |||
1247 | bsq = &fore200e->host_bsq[ buffer->scheme ][ buffer->magn ]; | ||
1248 | |||
1249 | #ifdef FORE200E_BSQ_DEBUG | ||
1250 | bsq_audit(2, bsq, buffer->scheme, buffer->magn); | ||
1251 | |||
1252 | if (buffer->supplied == 0) | ||
1253 | printk(FORE200E "queue %d.%d, buffer %ld was not supplied\n", | ||
1254 | buffer->scheme, buffer->magn, buffer->index); | ||
1255 | buffer->supplied = 0; | ||
1256 | #endif | ||
1257 | |||
1258 | /* re-insert the buffer into the free buffer list */ | ||
1259 | buffer->next = bsq->freebuf; | ||
1260 | bsq->freebuf = buffer; | ||
1261 | |||
1262 | /* then increment the number of free rx buffers */ | ||
1263 | bsq->freebuf_count++; | ||
1264 | } | ||
1265 | } | ||
1266 | |||
1267 | |||
1268 | static void | ||
1269 | fore200e_rx_irq(struct fore200e* fore200e) | ||
1270 | { | ||
1271 | struct host_rxq* rxq = &fore200e->host_rxq; | ||
1272 | struct host_rxq_entry* entry; | ||
1273 | struct atm_vcc* vcc; | ||
1274 | struct fore200e_vc_map* vc_map; | ||
1275 | |||
1276 | for (;;) { | ||
1277 | |||
1278 | entry = &rxq->host_entry[ rxq->head ]; | ||
1279 | |||
1280 | /* no more received PDUs */ | ||
1281 | if ((*entry->status & STATUS_COMPLETE) == 0) | ||
1282 | break; | ||
1283 | |||
1284 | vc_map = FORE200E_VC_MAP(fore200e, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | ||
1285 | |||
1286 | if ((vc_map->vcc == NULL) || | ||
1287 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { | ||
1288 | |||
1289 | DPRINTK(1, "no ready VC found for PDU received on %d.%d.%d\n", | ||
1290 | fore200e->atm_dev->number, | ||
1291 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | ||
1292 | } | ||
1293 | else { | ||
1294 | vcc = vc_map->vcc; | ||
1295 | ASSERT(vcc); | ||
1296 | |||
1297 | if ((*entry->status & STATUS_ERROR) == 0) { | ||
1298 | |||
1299 | fore200e_push_rpd(fore200e, vcc, entry->rpd); | ||
1300 | } | ||
1301 | else { | ||
1302 | DPRINTK(2, "damaged PDU on %d.%d.%d\n", | ||
1303 | fore200e->atm_dev->number, | ||
1304 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); | ||
1305 | atomic_inc(&vcc->stats->rx_err); | ||
1306 | } | ||
1307 | } | ||
1308 | |||
1309 | FORE200E_NEXT_ENTRY(rxq->head, QUEUE_SIZE_RX); | ||
1310 | |||
1311 | fore200e_collect_rpd(fore200e, entry->rpd); | ||
1312 | |||
1313 | /* rewrite the rpd address to ack the received PDU */ | ||
1314 | fore200e->bus->write(entry->rpd_dma, &entry->cp_entry->rpd_haddr); | ||
1315 | *entry->status = STATUS_FREE; | ||
1316 | |||
1317 | fore200e_supply(fore200e); | ||
1318 | } | ||
1319 | } | ||
1320 | |||
1321 | |||
1322 | #ifndef FORE200E_USE_TASKLET | ||
1323 | static void | ||
1324 | fore200e_irq(struct fore200e* fore200e) | ||
1325 | { | ||
1326 | unsigned long flags; | ||
1327 | |||
1328 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1329 | fore200e_rx_irq(fore200e); | ||
1330 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1331 | |||
1332 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1333 | fore200e_tx_irq(fore200e); | ||
1334 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1335 | } | ||
1336 | #endif | ||
1337 | |||
1338 | |||
1339 | static irqreturn_t | ||
1340 | fore200e_interrupt(int irq, void* dev, struct pt_regs* regs) | ||
1341 | { | ||
1342 | struct fore200e* fore200e = FORE200E_DEV((struct atm_dev*)dev); | ||
1343 | |||
1344 | if (fore200e->bus->irq_check(fore200e) == 0) { | ||
1345 | |||
1346 | DPRINTK(3, "interrupt NOT triggered by device %d\n", fore200e->atm_dev->number); | ||
1347 | return IRQ_NONE; | ||
1348 | } | ||
1349 | DPRINTK(3, "interrupt triggered by device %d\n", fore200e->atm_dev->number); | ||
1350 | |||
1351 | #ifdef FORE200E_USE_TASKLET | ||
1352 | tasklet_schedule(&fore200e->tx_tasklet); | ||
1353 | tasklet_schedule(&fore200e->rx_tasklet); | ||
1354 | #else | ||
1355 | fore200e_irq(fore200e); | ||
1356 | #endif | ||
1357 | |||
1358 | fore200e->bus->irq_ack(fore200e); | ||
1359 | return IRQ_HANDLED; | ||
1360 | } | ||
1361 | |||
1362 | |||
1363 | #ifdef FORE200E_USE_TASKLET | ||
1364 | static void | ||
1365 | fore200e_tx_tasklet(unsigned long data) | ||
1366 | { | ||
1367 | struct fore200e* fore200e = (struct fore200e*) data; | ||
1368 | unsigned long flags; | ||
1369 | |||
1370 | DPRINTK(3, "tx tasklet scheduled for device %d\n", fore200e->atm_dev->number); | ||
1371 | |||
1372 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1373 | fore200e_tx_irq(fore200e); | ||
1374 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1375 | } | ||
1376 | |||
1377 | |||
1378 | static void | ||
1379 | fore200e_rx_tasklet(unsigned long data) | ||
1380 | { | ||
1381 | struct fore200e* fore200e = (struct fore200e*) data; | ||
1382 | unsigned long flags; | ||
1383 | |||
1384 | DPRINTK(3, "rx tasklet scheduled for device %d\n", fore200e->atm_dev->number); | ||
1385 | |||
1386 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1387 | fore200e_rx_irq((struct fore200e*) data); | ||
1388 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1389 | } | ||
1390 | #endif | ||
1391 | |||
1392 | |||
1393 | static int | ||
1394 | fore200e_select_scheme(struct atm_vcc* vcc) | ||
1395 | { | ||
1396 | /* fairly balance the VCs over (identical) buffer schemes */ | ||
1397 | int scheme = vcc->vci % 2 ? BUFFER_SCHEME_ONE : BUFFER_SCHEME_TWO; | ||
1398 | |||
1399 | DPRINTK(1, "VC %d.%d.%d uses buffer scheme %d\n", | ||
1400 | vcc->itf, vcc->vpi, vcc->vci, scheme); | ||
1401 | |||
1402 | return scheme; | ||
1403 | } | ||
1404 | |||
1405 | |||
1406 | static int | ||
1407 | fore200e_activate_vcin(struct fore200e* fore200e, int activate, struct atm_vcc* vcc, int mtu) | ||
1408 | { | ||
1409 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
1410 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | ||
1411 | struct activate_opcode activ_opcode; | ||
1412 | struct deactivate_opcode deactiv_opcode; | ||
1413 | struct vpvc vpvc; | ||
1414 | int ok; | ||
1415 | enum fore200e_aal aal = fore200e_atm2fore_aal(vcc->qos.aal); | ||
1416 | |||
1417 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | ||
1418 | |||
1419 | if (activate) { | ||
1420 | FORE200E_VCC(vcc)->scheme = fore200e_select_scheme(vcc); | ||
1421 | |||
1422 | activ_opcode.opcode = OPCODE_ACTIVATE_VCIN; | ||
1423 | activ_opcode.aal = aal; | ||
1424 | activ_opcode.scheme = FORE200E_VCC(vcc)->scheme; | ||
1425 | activ_opcode.pad = 0; | ||
1426 | } | ||
1427 | else { | ||
1428 | deactiv_opcode.opcode = OPCODE_DEACTIVATE_VCIN; | ||
1429 | deactiv_opcode.pad = 0; | ||
1430 | } | ||
1431 | |||
1432 | vpvc.vci = vcc->vci; | ||
1433 | vpvc.vpi = vcc->vpi; | ||
1434 | |||
1435 | *entry->status = STATUS_PENDING; | ||
1436 | |||
1437 | if (activate) { | ||
1438 | |||
1439 | #ifdef FORE200E_52BYTE_AAL0_SDU | ||
1440 | mtu = 48; | ||
1441 | #endif | ||
1442 | /* the MTU is not used by the cp, except in the case of AAL0 */ | ||
1443 | fore200e->bus->write(mtu, &entry->cp_entry->cmd.activate_block.mtu); | ||
1444 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.vpvc); | ||
1445 | fore200e->bus->write(*(u32*)&activ_opcode, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.opcode); | ||
1446 | } | ||
1447 | else { | ||
1448 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.vpvc); | ||
1449 | fore200e->bus->write(*(u32*)&deactiv_opcode, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.opcode); | ||
1450 | } | ||
1451 | |||
1452 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | ||
1453 | |||
1454 | *entry->status = STATUS_FREE; | ||
1455 | |||
1456 | if (ok == 0) { | ||
1457 | printk(FORE200E "unable to %s VC %d.%d.%d\n", | ||
1458 | activate ? "open" : "close", vcc->itf, vcc->vpi, vcc->vci); | ||
1459 | return -EIO; | ||
1460 | } | ||
1461 | |||
1462 | DPRINTK(1, "VC %d.%d.%d %sed\n", vcc->itf, vcc->vpi, vcc->vci, | ||
1463 | activate ? "open" : "clos"); | ||
1464 | |||
1465 | return 0; | ||
1466 | } | ||
1467 | |||
1468 | |||
1469 | #define FORE200E_MAX_BACK2BACK_CELLS 255 /* XXX depends on CDVT */ | ||
1470 | |||
1471 | static void | ||
1472 | fore200e_rate_ctrl(struct atm_qos* qos, struct tpd_rate* rate) | ||
1473 | { | ||
1474 | if (qos->txtp.max_pcr < ATM_OC3_PCR) { | ||
1475 | |||
1476 | /* compute the data cells to idle cells ratio from the tx PCR */ | ||
1477 | rate->data_cells = qos->txtp.max_pcr * FORE200E_MAX_BACK2BACK_CELLS / ATM_OC3_PCR; | ||
1478 | rate->idle_cells = FORE200E_MAX_BACK2BACK_CELLS - rate->data_cells; | ||
1479 | } | ||
1480 | else { | ||
1481 | /* disable rate control */ | ||
1482 | rate->data_cells = rate->idle_cells = 0; | ||
1483 | } | ||
1484 | } | ||
1485 | |||
1486 | |||
1487 | static int | ||
1488 | fore200e_open(struct atm_vcc *vcc) | ||
1489 | { | ||
1490 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | ||
1491 | struct fore200e_vcc* fore200e_vcc; | ||
1492 | struct fore200e_vc_map* vc_map; | ||
1493 | unsigned long flags; | ||
1494 | int vci = vcc->vci; | ||
1495 | short vpi = vcc->vpi; | ||
1496 | |||
1497 | ASSERT((vpi >= 0) && (vpi < 1<<FORE200E_VPI_BITS)); | ||
1498 | ASSERT((vci >= 0) && (vci < 1<<FORE200E_VCI_BITS)); | ||
1499 | |||
1500 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1501 | |||
1502 | vc_map = FORE200E_VC_MAP(fore200e, vpi, vci); | ||
1503 | if (vc_map->vcc) { | ||
1504 | |||
1505 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1506 | |||
1507 | printk(FORE200E "VC %d.%d.%d already in use\n", | ||
1508 | fore200e->atm_dev->number, vpi, vci); | ||
1509 | |||
1510 | return -EINVAL; | ||
1511 | } | ||
1512 | |||
1513 | vc_map->vcc = vcc; | ||
1514 | |||
1515 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1516 | |||
1517 | fore200e_vcc = fore200e_kmalloc(sizeof(struct fore200e_vcc), GFP_ATOMIC); | ||
1518 | if (fore200e_vcc == NULL) { | ||
1519 | vc_map->vcc = NULL; | ||
1520 | return -ENOMEM; | ||
1521 | } | ||
1522 | |||
1523 | DPRINTK(2, "opening %d.%d.%d:%d QoS = (tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " | ||
1524 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d)\n", | ||
1525 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | ||
1526 | fore200e_traffic_class[ vcc->qos.txtp.traffic_class ], | ||
1527 | vcc->qos.txtp.min_pcr, vcc->qos.txtp.max_pcr, vcc->qos.txtp.max_cdv, vcc->qos.txtp.max_sdu, | ||
1528 | fore200e_traffic_class[ vcc->qos.rxtp.traffic_class ], | ||
1529 | vcc->qos.rxtp.min_pcr, vcc->qos.rxtp.max_pcr, vcc->qos.rxtp.max_cdv, vcc->qos.rxtp.max_sdu); | ||
1530 | |||
1531 | /* pseudo-CBR bandwidth requested? */ | ||
1532 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | ||
1533 | |||
1534 | down(&fore200e->rate_sf); | ||
1535 | if (fore200e->available_cell_rate < vcc->qos.txtp.max_pcr) { | ||
1536 | up(&fore200e->rate_sf); | ||
1537 | |||
1538 | fore200e_kfree(fore200e_vcc); | ||
1539 | vc_map->vcc = NULL; | ||
1540 | return -EAGAIN; | ||
1541 | } | ||
1542 | |||
1543 | /* reserve bandwidth */ | ||
1544 | fore200e->available_cell_rate -= vcc->qos.txtp.max_pcr; | ||
1545 | up(&fore200e->rate_sf); | ||
1546 | } | ||
1547 | |||
1548 | vcc->itf = vcc->dev->number; | ||
1549 | |||
1550 | set_bit(ATM_VF_PARTIAL,&vcc->flags); | ||
1551 | set_bit(ATM_VF_ADDR, &vcc->flags); | ||
1552 | |||
1553 | vcc->dev_data = fore200e_vcc; | ||
1554 | |||
1555 | if (fore200e_activate_vcin(fore200e, 1, vcc, vcc->qos.rxtp.max_sdu) < 0) { | ||
1556 | |||
1557 | vc_map->vcc = NULL; | ||
1558 | |||
1559 | clear_bit(ATM_VF_ADDR, &vcc->flags); | ||
1560 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); | ||
1561 | |||
1562 | vcc->dev_data = NULL; | ||
1563 | |||
1564 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | ||
1565 | |||
1566 | fore200e_kfree(fore200e_vcc); | ||
1567 | return -EINVAL; | ||
1568 | } | ||
1569 | |||
1570 | /* compute rate control parameters */ | ||
1571 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | ||
1572 | |||
1573 | fore200e_rate_ctrl(&vcc->qos, &fore200e_vcc->rate); | ||
1574 | set_bit(ATM_VF_HASQOS, &vcc->flags); | ||
1575 | |||
1576 | DPRINTK(3, "tx on %d.%d.%d:%d, tx PCR = %d, rx PCR = %d, data_cells = %u, idle_cells = %u\n", | ||
1577 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | ||
1578 | vcc->qos.txtp.max_pcr, vcc->qos.rxtp.max_pcr, | ||
1579 | fore200e_vcc->rate.data_cells, fore200e_vcc->rate.idle_cells); | ||
1580 | } | ||
1581 | |||
1582 | fore200e_vcc->tx_min_pdu = fore200e_vcc->rx_min_pdu = MAX_PDU_SIZE + 1; | ||
1583 | fore200e_vcc->tx_max_pdu = fore200e_vcc->rx_max_pdu = 0; | ||
1584 | fore200e_vcc->tx_pdu = fore200e_vcc->rx_pdu = 0; | ||
1585 | |||
1586 | /* new incarnation of the vcc */ | ||
1587 | vc_map->incarn = ++fore200e->incarn_count; | ||
1588 | |||
1589 | /* VC unusable before this flag is set */ | ||
1590 | set_bit(ATM_VF_READY, &vcc->flags); | ||
1591 | |||
1592 | return 0; | ||
1593 | } | ||
1594 | |||
1595 | |||
1596 | static void | ||
1597 | fore200e_close(struct atm_vcc* vcc) | ||
1598 | { | ||
1599 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | ||
1600 | struct fore200e_vcc* fore200e_vcc; | ||
1601 | struct fore200e_vc_map* vc_map; | ||
1602 | unsigned long flags; | ||
1603 | |||
1604 | ASSERT(vcc); | ||
1605 | ASSERT((vcc->vpi >= 0) && (vcc->vpi < 1<<FORE200E_VPI_BITS)); | ||
1606 | ASSERT((vcc->vci >= 0) && (vcc->vci < 1<<FORE200E_VCI_BITS)); | ||
1607 | |||
1608 | DPRINTK(2, "closing %d.%d.%d:%d\n", vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal)); | ||
1609 | |||
1610 | clear_bit(ATM_VF_READY, &vcc->flags); | ||
1611 | |||
1612 | fore200e_activate_vcin(fore200e, 0, vcc, 0); | ||
1613 | |||
1614 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1615 | |||
1616 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); | ||
1617 | |||
1618 | /* the vc is no longer considered as "in use" by fore200e_open() */ | ||
1619 | vc_map->vcc = NULL; | ||
1620 | |||
1621 | vcc->itf = vcc->vci = vcc->vpi = 0; | ||
1622 | |||
1623 | fore200e_vcc = FORE200E_VCC(vcc); | ||
1624 | vcc->dev_data = NULL; | ||
1625 | |||
1626 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1627 | |||
1628 | /* release reserved bandwidth, if any */ | ||
1629 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { | ||
1630 | |||
1631 | down(&fore200e->rate_sf); | ||
1632 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | ||
1633 | up(&fore200e->rate_sf); | ||
1634 | |||
1635 | clear_bit(ATM_VF_HASQOS, &vcc->flags); | ||
1636 | } | ||
1637 | |||
1638 | clear_bit(ATM_VF_ADDR, &vcc->flags); | ||
1639 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); | ||
1640 | |||
1641 | ASSERT(fore200e_vcc); | ||
1642 | fore200e_kfree(fore200e_vcc); | ||
1643 | } | ||
1644 | |||
1645 | |||
1646 | static int | ||
1647 | fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb) | ||
1648 | { | ||
1649 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | ||
1650 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); | ||
1651 | struct fore200e_vc_map* vc_map; | ||
1652 | struct host_txq* txq = &fore200e->host_txq; | ||
1653 | struct host_txq_entry* entry; | ||
1654 | struct tpd* tpd; | ||
1655 | struct tpd_haddr tpd_haddr; | ||
1656 | int retry = CONFIG_ATM_FORE200E_TX_RETRY; | ||
1657 | int tx_copy = 0; | ||
1658 | int tx_len = skb->len; | ||
1659 | u32* cell_header = NULL; | ||
1660 | unsigned char* skb_data; | ||
1661 | int skb_len; | ||
1662 | unsigned char* data; | ||
1663 | unsigned long flags; | ||
1664 | |||
1665 | ASSERT(vcc); | ||
1666 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); | ||
1667 | ASSERT(fore200e); | ||
1668 | ASSERT(fore200e_vcc); | ||
1669 | |||
1670 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { | ||
1671 | DPRINTK(1, "VC %d.%d.%d not ready for tx\n", vcc->itf, vcc->vpi, vcc->vpi); | ||
1672 | dev_kfree_skb_any(skb); | ||
1673 | return -EINVAL; | ||
1674 | } | ||
1675 | |||
1676 | #ifdef FORE200E_52BYTE_AAL0_SDU | ||
1677 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.txtp.max_sdu == ATM_AAL0_SDU)) { | ||
1678 | cell_header = (u32*) skb->data; | ||
1679 | skb_data = skb->data + 4; /* skip 4-byte cell header */ | ||
1680 | skb_len = tx_len = skb->len - 4; | ||
1681 | |||
1682 | DPRINTK(3, "user-supplied cell header = 0x%08x\n", *cell_header); | ||
1683 | } | ||
1684 | else | ||
1685 | #endif | ||
1686 | { | ||
1687 | skb_data = skb->data; | ||
1688 | skb_len = skb->len; | ||
1689 | } | ||
1690 | |||
1691 | if (((unsigned long)skb_data) & 0x3) { | ||
1692 | |||
1693 | DPRINTK(2, "misaligned tx PDU on device %s\n", fore200e->name); | ||
1694 | tx_copy = 1; | ||
1695 | tx_len = skb_len; | ||
1696 | } | ||
1697 | |||
1698 | if ((vcc->qos.aal == ATM_AAL0) && (skb_len % ATM_CELL_PAYLOAD)) { | ||
1699 | |||
1700 | /* this simply NUKES the PCA board */ | ||
1701 | DPRINTK(2, "incomplete tx AAL0 PDU on device %s\n", fore200e->name); | ||
1702 | tx_copy = 1; | ||
1703 | tx_len = ((skb_len / ATM_CELL_PAYLOAD) + 1) * ATM_CELL_PAYLOAD; | ||
1704 | } | ||
1705 | |||
1706 | if (tx_copy) { | ||
1707 | data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA); | ||
1708 | if (data == NULL) { | ||
1709 | if (vcc->pop) { | ||
1710 | vcc->pop(vcc, skb); | ||
1711 | } | ||
1712 | else { | ||
1713 | dev_kfree_skb_any(skb); | ||
1714 | } | ||
1715 | return -ENOMEM; | ||
1716 | } | ||
1717 | |||
1718 | memcpy(data, skb_data, skb_len); | ||
1719 | if (skb_len < tx_len) | ||
1720 | memset(data + skb_len, 0x00, tx_len - skb_len); | ||
1721 | } | ||
1722 | else { | ||
1723 | data = skb_data; | ||
1724 | } | ||
1725 | |||
1726 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); | ||
1727 | ASSERT(vc_map->vcc == vcc); | ||
1728 | |||
1729 | retry_here: | ||
1730 | |||
1731 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
1732 | |||
1733 | entry = &txq->host_entry[ txq->head ]; | ||
1734 | |||
1735 | if ((*entry->status != STATUS_FREE) || (txq->txing >= QUEUE_SIZE_TX - 2)) { | ||
1736 | |||
1737 | /* try to free completed tx queue entries */ | ||
1738 | fore200e_tx_irq(fore200e); | ||
1739 | |||
1740 | if (*entry->status != STATUS_FREE) { | ||
1741 | |||
1742 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1743 | |||
1744 | /* retry once again? */ | ||
1745 | if (--retry > 0) { | ||
1746 | udelay(50); | ||
1747 | goto retry_here; | ||
1748 | } | ||
1749 | |||
1750 | atomic_inc(&vcc->stats->tx_err); | ||
1751 | |||
1752 | fore200e->tx_sat++; | ||
1753 | DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", | ||
1754 | fore200e->name, fore200e->cp_queues->heartbeat); | ||
1755 | if (vcc->pop) { | ||
1756 | vcc->pop(vcc, skb); | ||
1757 | } | ||
1758 | else { | ||
1759 | dev_kfree_skb_any(skb); | ||
1760 | } | ||
1761 | |||
1762 | if (tx_copy) | ||
1763 | kfree(data); | ||
1764 | |||
1765 | return -ENOBUFS; | ||
1766 | } | ||
1767 | } | ||
1768 | |||
1769 | entry->incarn = vc_map->incarn; | ||
1770 | entry->vc_map = vc_map; | ||
1771 | entry->skb = skb; | ||
1772 | entry->data = tx_copy ? data : NULL; | ||
1773 | |||
1774 | tpd = entry->tpd; | ||
1775 | tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, data, tx_len, DMA_TO_DEVICE); | ||
1776 | tpd->tsd[ 0 ].length = tx_len; | ||
1777 | |||
1778 | FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX); | ||
1779 | txq->txing++; | ||
1780 | |||
1781 | /* The dma_map call above implies a dma_sync so the device can use it, | ||
1782 | * thus no explicit dma_sync call is necessary here. | ||
1783 | */ | ||
1784 | |||
1785 | DPRINTK(3, "tx on %d.%d.%d:%d, len = %u (%u)\n", | ||
1786 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | ||
1787 | tpd->tsd[0].length, skb_len); | ||
1788 | |||
1789 | if (skb_len < fore200e_vcc->tx_min_pdu) | ||
1790 | fore200e_vcc->tx_min_pdu = skb_len; | ||
1791 | if (skb_len > fore200e_vcc->tx_max_pdu) | ||
1792 | fore200e_vcc->tx_max_pdu = skb_len; | ||
1793 | fore200e_vcc->tx_pdu++; | ||
1794 | |||
1795 | /* set tx rate control information */ | ||
1796 | tpd->rate.data_cells = fore200e_vcc->rate.data_cells; | ||
1797 | tpd->rate.idle_cells = fore200e_vcc->rate.idle_cells; | ||
1798 | |||
1799 | if (cell_header) { | ||
1800 | tpd->atm_header.clp = (*cell_header & ATM_HDR_CLP); | ||
1801 | tpd->atm_header.plt = (*cell_header & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT; | ||
1802 | tpd->atm_header.vci = (*cell_header & ATM_HDR_VCI_MASK) >> ATM_HDR_VCI_SHIFT; | ||
1803 | tpd->atm_header.vpi = (*cell_header & ATM_HDR_VPI_MASK) >> ATM_HDR_VPI_SHIFT; | ||
1804 | tpd->atm_header.gfc = (*cell_header & ATM_HDR_GFC_MASK) >> ATM_HDR_GFC_SHIFT; | ||
1805 | } | ||
1806 | else { | ||
1807 | /* set the ATM header, common to all cells conveying the PDU */ | ||
1808 | tpd->atm_header.clp = 0; | ||
1809 | tpd->atm_header.plt = 0; | ||
1810 | tpd->atm_header.vci = vcc->vci; | ||
1811 | tpd->atm_header.vpi = vcc->vpi; | ||
1812 | tpd->atm_header.gfc = 0; | ||
1813 | } | ||
1814 | |||
1815 | tpd->spec.length = tx_len; | ||
1816 | tpd->spec.nseg = 1; | ||
1817 | tpd->spec.aal = fore200e_atm2fore_aal(vcc->qos.aal); | ||
1818 | tpd->spec.intr = 1; | ||
1819 | |||
1820 | tpd_haddr.size = sizeof(struct tpd) / (1<<TPD_HADDR_SHIFT); /* size is expressed in 32 byte blocks */ | ||
1821 | tpd_haddr.pad = 0; | ||
1822 | tpd_haddr.haddr = entry->tpd_dma >> TPD_HADDR_SHIFT; /* shift the address, as we are in a bitfield */ | ||
1823 | |||
1824 | *entry->status = STATUS_PENDING; | ||
1825 | fore200e->bus->write(*(u32*)&tpd_haddr, (u32 __iomem *)&entry->cp_entry->tpd_haddr); | ||
1826 | |||
1827 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
1828 | |||
1829 | return 0; | ||
1830 | } | ||
1831 | |||
1832 | |||
1833 | static int | ||
1834 | fore200e_getstats(struct fore200e* fore200e) | ||
1835 | { | ||
1836 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
1837 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | ||
1838 | struct stats_opcode opcode; | ||
1839 | int ok; | ||
1840 | u32 stats_dma_addr; | ||
1841 | |||
1842 | if (fore200e->stats == NULL) { | ||
1843 | fore200e->stats = fore200e_kmalloc(sizeof(struct stats), GFP_KERNEL | GFP_DMA); | ||
1844 | if (fore200e->stats == NULL) | ||
1845 | return -ENOMEM; | ||
1846 | } | ||
1847 | |||
1848 | stats_dma_addr = fore200e->bus->dma_map(fore200e, fore200e->stats, | ||
1849 | sizeof(struct stats), DMA_FROM_DEVICE); | ||
1850 | |||
1851 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | ||
1852 | |||
1853 | opcode.opcode = OPCODE_GET_STATS; | ||
1854 | opcode.pad = 0; | ||
1855 | |||
1856 | fore200e->bus->write(stats_dma_addr, &entry->cp_entry->cmd.stats_block.stats_haddr); | ||
1857 | |||
1858 | *entry->status = STATUS_PENDING; | ||
1859 | |||
1860 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.stats_block.opcode); | ||
1861 | |||
1862 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | ||
1863 | |||
1864 | *entry->status = STATUS_FREE; | ||
1865 | |||
1866 | fore200e->bus->dma_unmap(fore200e, stats_dma_addr, sizeof(struct stats), DMA_FROM_DEVICE); | ||
1867 | |||
1868 | if (ok == 0) { | ||
1869 | printk(FORE200E "unable to get statistics from device %s\n", fore200e->name); | ||
1870 | return -EIO; | ||
1871 | } | ||
1872 | |||
1873 | return 0; | ||
1874 | } | ||
1875 | |||
1876 | |||
1877 | static int | ||
1878 | fore200e_getsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen) | ||
1879 | { | ||
1880 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ | ||
1881 | |||
1882 | DPRINTK(2, "getsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", | ||
1883 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); | ||
1884 | |||
1885 | return -EINVAL; | ||
1886 | } | ||
1887 | |||
1888 | |||
1889 | static int | ||
1890 | fore200e_setsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen) | ||
1891 | { | ||
1892 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ | ||
1893 | |||
1894 | DPRINTK(2, "setsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", | ||
1895 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); | ||
1896 | |||
1897 | return -EINVAL; | ||
1898 | } | ||
1899 | |||
1900 | |||
1901 | #if 0 /* currently unused */ | ||
1902 | static int | ||
1903 | fore200e_get_oc3(struct fore200e* fore200e, struct oc3_regs* regs) | ||
1904 | { | ||
1905 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
1906 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | ||
1907 | struct oc3_opcode opcode; | ||
1908 | int ok; | ||
1909 | u32 oc3_regs_dma_addr; | ||
1910 | |||
1911 | oc3_regs_dma_addr = fore200e->bus->dma_map(fore200e, regs, sizeof(struct oc3_regs), DMA_FROM_DEVICE); | ||
1912 | |||
1913 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | ||
1914 | |||
1915 | opcode.opcode = OPCODE_GET_OC3; | ||
1916 | opcode.reg = 0; | ||
1917 | opcode.value = 0; | ||
1918 | opcode.mask = 0; | ||
1919 | |||
1920 | fore200e->bus->write(oc3_regs_dma_addr, &entry->cp_entry->cmd.oc3_block.regs_haddr); | ||
1921 | |||
1922 | *entry->status = STATUS_PENDING; | ||
1923 | |||
1924 | fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.oc3_block.opcode); | ||
1925 | |||
1926 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | ||
1927 | |||
1928 | *entry->status = STATUS_FREE; | ||
1929 | |||
1930 | fore200e->bus->dma_unmap(fore200e, oc3_regs_dma_addr, sizeof(struct oc3_regs), DMA_FROM_DEVICE); | ||
1931 | |||
1932 | if (ok == 0) { | ||
1933 | printk(FORE200E "unable to get OC-3 regs of device %s\n", fore200e->name); | ||
1934 | return -EIO; | ||
1935 | } | ||
1936 | |||
1937 | return 0; | ||
1938 | } | ||
1939 | #endif | ||
1940 | |||
1941 | |||
1942 | static int | ||
1943 | fore200e_set_oc3(struct fore200e* fore200e, u32 reg, u32 value, u32 mask) | ||
1944 | { | ||
1945 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
1946 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; | ||
1947 | struct oc3_opcode opcode; | ||
1948 | int ok; | ||
1949 | |||
1950 | DPRINTK(2, "set OC-3 reg = 0x%02x, value = 0x%02x, mask = 0x%02x\n", reg, value, mask); | ||
1951 | |||
1952 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); | ||
1953 | |||
1954 | opcode.opcode = OPCODE_SET_OC3; | ||
1955 | opcode.reg = reg; | ||
1956 | opcode.value = value; | ||
1957 | opcode.mask = mask; | ||
1958 | |||
1959 | fore200e->bus->write(0, &entry->cp_entry->cmd.oc3_block.regs_haddr); | ||
1960 | |||
1961 | *entry->status = STATUS_PENDING; | ||
1962 | |||
1963 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.oc3_block.opcode); | ||
1964 | |||
1965 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); | ||
1966 | |||
1967 | *entry->status = STATUS_FREE; | ||
1968 | |||
1969 | if (ok == 0) { | ||
1970 | printk(FORE200E "unable to set OC-3 reg 0x%02x of device %s\n", reg, fore200e->name); | ||
1971 | return -EIO; | ||
1972 | } | ||
1973 | |||
1974 | return 0; | ||
1975 | } | ||
1976 | |||
1977 | |||
1978 | static int | ||
1979 | fore200e_setloop(struct fore200e* fore200e, int loop_mode) | ||
1980 | { | ||
1981 | u32 mct_value, mct_mask; | ||
1982 | int error; | ||
1983 | |||
1984 | if (!capable(CAP_NET_ADMIN)) | ||
1985 | return -EPERM; | ||
1986 | |||
1987 | switch (loop_mode) { | ||
1988 | |||
1989 | case ATM_LM_NONE: | ||
1990 | mct_value = 0; | ||
1991 | mct_mask = SUNI_MCT_DLE | SUNI_MCT_LLE; | ||
1992 | break; | ||
1993 | |||
1994 | case ATM_LM_LOC_PHY: | ||
1995 | mct_value = mct_mask = SUNI_MCT_DLE; | ||
1996 | break; | ||
1997 | |||
1998 | case ATM_LM_RMT_PHY: | ||
1999 | mct_value = mct_mask = SUNI_MCT_LLE; | ||
2000 | break; | ||
2001 | |||
2002 | default: | ||
2003 | return -EINVAL; | ||
2004 | } | ||
2005 | |||
2006 | error = fore200e_set_oc3(fore200e, SUNI_MCT, mct_value, mct_mask); | ||
2007 | if (error == 0) | ||
2008 | fore200e->loop_mode = loop_mode; | ||
2009 | |||
2010 | return error; | ||
2011 | } | ||
2012 | |||
2013 | |||
2014 | static inline unsigned int | ||
2015 | fore200e_swap(unsigned int in) | ||
2016 | { | ||
2017 | #if defined(__LITTLE_ENDIAN) | ||
2018 | return swab32(in); | ||
2019 | #else | ||
2020 | return in; | ||
2021 | #endif | ||
2022 | } | ||
2023 | |||
2024 | |||
2025 | static int | ||
2026 | fore200e_fetch_stats(struct fore200e* fore200e, struct sonet_stats __user *arg) | ||
2027 | { | ||
2028 | struct sonet_stats tmp; | ||
2029 | |||
2030 | if (fore200e_getstats(fore200e) < 0) | ||
2031 | return -EIO; | ||
2032 | |||
2033 | tmp.section_bip = fore200e_swap(fore200e->stats->oc3.section_bip8_errors); | ||
2034 | tmp.line_bip = fore200e_swap(fore200e->stats->oc3.line_bip24_errors); | ||
2035 | tmp.path_bip = fore200e_swap(fore200e->stats->oc3.path_bip8_errors); | ||
2036 | tmp.line_febe = fore200e_swap(fore200e->stats->oc3.line_febe_errors); | ||
2037 | tmp.path_febe = fore200e_swap(fore200e->stats->oc3.path_febe_errors); | ||
2038 | tmp.corr_hcs = fore200e_swap(fore200e->stats->oc3.corr_hcs_errors); | ||
2039 | tmp.uncorr_hcs = fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors); | ||
2040 | tmp.tx_cells = fore200e_swap(fore200e->stats->aal0.cells_transmitted) + | ||
2041 | fore200e_swap(fore200e->stats->aal34.cells_transmitted) + | ||
2042 | fore200e_swap(fore200e->stats->aal5.cells_transmitted); | ||
2043 | tmp.rx_cells = fore200e_swap(fore200e->stats->aal0.cells_received) + | ||
2044 | fore200e_swap(fore200e->stats->aal34.cells_received) + | ||
2045 | fore200e_swap(fore200e->stats->aal5.cells_received); | ||
2046 | |||
2047 | if (arg) | ||
2048 | return copy_to_user(arg, &tmp, sizeof(struct sonet_stats)) ? -EFAULT : 0; | ||
2049 | |||
2050 | return 0; | ||
2051 | } | ||
2052 | |||
2053 | |||
2054 | static int | ||
2055 | fore200e_ioctl(struct atm_dev* dev, unsigned int cmd, void __user * arg) | ||
2056 | { | ||
2057 | struct fore200e* fore200e = FORE200E_DEV(dev); | ||
2058 | |||
2059 | DPRINTK(2, "ioctl cmd = 0x%x (%u), arg = 0x%p (%lu)\n", cmd, cmd, arg, (unsigned long)arg); | ||
2060 | |||
2061 | switch (cmd) { | ||
2062 | |||
2063 | case SONET_GETSTAT: | ||
2064 | return fore200e_fetch_stats(fore200e, (struct sonet_stats __user *)arg); | ||
2065 | |||
2066 | case SONET_GETDIAG: | ||
2067 | return put_user(0, (int __user *)arg) ? -EFAULT : 0; | ||
2068 | |||
2069 | case ATM_SETLOOP: | ||
2070 | return fore200e_setloop(fore200e, (int)(unsigned long)arg); | ||
2071 | |||
2072 | case ATM_GETLOOP: | ||
2073 | return put_user(fore200e->loop_mode, (int __user *)arg) ? -EFAULT : 0; | ||
2074 | |||
2075 | case ATM_QUERYLOOP: | ||
2076 | return put_user(ATM_LM_LOC_PHY | ATM_LM_RMT_PHY, (int __user *)arg) ? -EFAULT : 0; | ||
2077 | } | ||
2078 | |||
2079 | return -ENOSYS; /* not implemented */ | ||
2080 | } | ||
2081 | |||
2082 | |||
2083 | static int | ||
2084 | fore200e_change_qos(struct atm_vcc* vcc,struct atm_qos* qos, int flags) | ||
2085 | { | ||
2086 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); | ||
2087 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); | ||
2088 | |||
2089 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { | ||
2090 | DPRINTK(1, "VC %d.%d.%d not ready for QoS change\n", vcc->itf, vcc->vpi, vcc->vpi); | ||
2091 | return -EINVAL; | ||
2092 | } | ||
2093 | |||
2094 | DPRINTK(2, "change_qos %d.%d.%d, " | ||
2095 | "(tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " | ||
2096 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d), flags = 0x%x\n" | ||
2097 | "available_cell_rate = %u", | ||
2098 | vcc->itf, vcc->vpi, vcc->vci, | ||
2099 | fore200e_traffic_class[ qos->txtp.traffic_class ], | ||
2100 | qos->txtp.min_pcr, qos->txtp.max_pcr, qos->txtp.max_cdv, qos->txtp.max_sdu, | ||
2101 | fore200e_traffic_class[ qos->rxtp.traffic_class ], | ||
2102 | qos->rxtp.min_pcr, qos->rxtp.max_pcr, qos->rxtp.max_cdv, qos->rxtp.max_sdu, | ||
2103 | flags, fore200e->available_cell_rate); | ||
2104 | |||
2105 | if ((qos->txtp.traffic_class == ATM_CBR) && (qos->txtp.max_pcr > 0)) { | ||
2106 | |||
2107 | down(&fore200e->rate_sf); | ||
2108 | if (fore200e->available_cell_rate + vcc->qos.txtp.max_pcr < qos->txtp.max_pcr) { | ||
2109 | up(&fore200e->rate_sf); | ||
2110 | return -EAGAIN; | ||
2111 | } | ||
2112 | |||
2113 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; | ||
2114 | fore200e->available_cell_rate -= qos->txtp.max_pcr; | ||
2115 | |||
2116 | up(&fore200e->rate_sf); | ||
2117 | |||
2118 | memcpy(&vcc->qos, qos, sizeof(struct atm_qos)); | ||
2119 | |||
2120 | /* update rate control parameters */ | ||
2121 | fore200e_rate_ctrl(qos, &fore200e_vcc->rate); | ||
2122 | |||
2123 | set_bit(ATM_VF_HASQOS, &vcc->flags); | ||
2124 | |||
2125 | return 0; | ||
2126 | } | ||
2127 | |||
2128 | return -EINVAL; | ||
2129 | } | ||
2130 | |||
2131 | |||
2132 | static int __init | ||
2133 | fore200e_irq_request(struct fore200e* fore200e) | ||
2134 | { | ||
2135 | if (request_irq(fore200e->irq, fore200e_interrupt, SA_SHIRQ, fore200e->name, fore200e->atm_dev) < 0) { | ||
2136 | |||
2137 | printk(FORE200E "unable to reserve IRQ %s for device %s\n", | ||
2138 | fore200e_irq_itoa(fore200e->irq), fore200e->name); | ||
2139 | return -EBUSY; | ||
2140 | } | ||
2141 | |||
2142 | printk(FORE200E "IRQ %s reserved for device %s\n", | ||
2143 | fore200e_irq_itoa(fore200e->irq), fore200e->name); | ||
2144 | |||
2145 | #ifdef FORE200E_USE_TASKLET | ||
2146 | tasklet_init(&fore200e->tx_tasklet, fore200e_tx_tasklet, (unsigned long)fore200e); | ||
2147 | tasklet_init(&fore200e->rx_tasklet, fore200e_rx_tasklet, (unsigned long)fore200e); | ||
2148 | #endif | ||
2149 | |||
2150 | fore200e->state = FORE200E_STATE_IRQ; | ||
2151 | return 0; | ||
2152 | } | ||
2153 | |||
2154 | |||
2155 | static int __init | ||
2156 | fore200e_get_esi(struct fore200e* fore200e) | ||
2157 | { | ||
2158 | struct prom_data* prom = fore200e_kmalloc(sizeof(struct prom_data), GFP_KERNEL | GFP_DMA); | ||
2159 | int ok, i; | ||
2160 | |||
2161 | if (!prom) | ||
2162 | return -ENOMEM; | ||
2163 | |||
2164 | ok = fore200e->bus->prom_read(fore200e, prom); | ||
2165 | if (ok < 0) { | ||
2166 | fore200e_kfree(prom); | ||
2167 | return -EBUSY; | ||
2168 | } | ||
2169 | |||
2170 | printk(FORE200E "device %s, rev. %c, S/N: %d, ESI: %02x:%02x:%02x:%02x:%02x:%02x\n", | ||
2171 | fore200e->name, | ||
2172 | (prom->hw_revision & 0xFF) + '@', /* probably meaningless with SBA boards */ | ||
2173 | prom->serial_number & 0xFFFF, | ||
2174 | prom->mac_addr[ 2 ], prom->mac_addr[ 3 ], prom->mac_addr[ 4 ], | ||
2175 | prom->mac_addr[ 5 ], prom->mac_addr[ 6 ], prom->mac_addr[ 7 ]); | ||
2176 | |||
2177 | for (i = 0; i < ESI_LEN; i++) { | ||
2178 | fore200e->esi[ i ] = fore200e->atm_dev->esi[ i ] = prom->mac_addr[ i + 2 ]; | ||
2179 | } | ||
2180 | |||
2181 | fore200e_kfree(prom); | ||
2182 | |||
2183 | return 0; | ||
2184 | } | ||
2185 | |||
2186 | |||
2187 | static int __init | ||
2188 | fore200e_alloc_rx_buf(struct fore200e* fore200e) | ||
2189 | { | ||
2190 | int scheme, magn, nbr, size, i; | ||
2191 | |||
2192 | struct host_bsq* bsq; | ||
2193 | struct buffer* buffer; | ||
2194 | |||
2195 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | ||
2196 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | ||
2197 | |||
2198 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | ||
2199 | |||
2200 | nbr = fore200e_rx_buf_nbr[ scheme ][ magn ]; | ||
2201 | size = fore200e_rx_buf_size[ scheme ][ magn ]; | ||
2202 | |||
2203 | DPRINTK(2, "rx buffers %d / %d are being allocated\n", scheme, magn); | ||
2204 | |||
2205 | /* allocate the array of receive buffers */ | ||
2206 | buffer = bsq->buffer = fore200e_kmalloc(nbr * sizeof(struct buffer), GFP_KERNEL); | ||
2207 | |||
2208 | if (buffer == NULL) | ||
2209 | return -ENOMEM; | ||
2210 | |||
2211 | bsq->freebuf = NULL; | ||
2212 | |||
2213 | for (i = 0; i < nbr; i++) { | ||
2214 | |||
2215 | buffer[ i ].scheme = scheme; | ||
2216 | buffer[ i ].magn = magn; | ||
2217 | #ifdef FORE200E_BSQ_DEBUG | ||
2218 | buffer[ i ].index = i; | ||
2219 | buffer[ i ].supplied = 0; | ||
2220 | #endif | ||
2221 | |||
2222 | /* allocate the receive buffer body */ | ||
2223 | if (fore200e_chunk_alloc(fore200e, | ||
2224 | &buffer[ i ].data, size, fore200e->bus->buffer_alignment, | ||
2225 | DMA_FROM_DEVICE) < 0) { | ||
2226 | |||
2227 | while (i > 0) | ||
2228 | fore200e_chunk_free(fore200e, &buffer[ --i ].data); | ||
2229 | fore200e_kfree(buffer); | ||
2230 | |||
2231 | return -ENOMEM; | ||
2232 | } | ||
2233 | |||
2234 | /* insert the buffer into the free buffer list */ | ||
2235 | buffer[ i ].next = bsq->freebuf; | ||
2236 | bsq->freebuf = &buffer[ i ]; | ||
2237 | } | ||
2238 | /* all the buffers are free, initially */ | ||
2239 | bsq->freebuf_count = nbr; | ||
2240 | |||
2241 | #ifdef FORE200E_BSQ_DEBUG | ||
2242 | bsq_audit(3, bsq, scheme, magn); | ||
2243 | #endif | ||
2244 | } | ||
2245 | } | ||
2246 | |||
2247 | fore200e->state = FORE200E_STATE_ALLOC_BUF; | ||
2248 | return 0; | ||
2249 | } | ||
2250 | |||
2251 | |||
2252 | static int __init | ||
2253 | fore200e_init_bs_queue(struct fore200e* fore200e) | ||
2254 | { | ||
2255 | int scheme, magn, i; | ||
2256 | |||
2257 | struct host_bsq* bsq; | ||
2258 | struct cp_bsq_entry __iomem * cp_entry; | ||
2259 | |||
2260 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { | ||
2261 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { | ||
2262 | |||
2263 | DPRINTK(2, "buffer supply queue %d / %d is being initialized\n", scheme, magn); | ||
2264 | |||
2265 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; | ||
2266 | |||
2267 | /* allocate and align the array of status words */ | ||
2268 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2269 | &bsq->status, | ||
2270 | sizeof(enum status), | ||
2271 | QUEUE_SIZE_BS, | ||
2272 | fore200e->bus->status_alignment) < 0) { | ||
2273 | return -ENOMEM; | ||
2274 | } | ||
2275 | |||
2276 | /* allocate and align the array of receive buffer descriptors */ | ||
2277 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2278 | &bsq->rbd_block, | ||
2279 | sizeof(struct rbd_block), | ||
2280 | QUEUE_SIZE_BS, | ||
2281 | fore200e->bus->descr_alignment) < 0) { | ||
2282 | |||
2283 | fore200e->bus->dma_chunk_free(fore200e, &bsq->status); | ||
2284 | return -ENOMEM; | ||
2285 | } | ||
2286 | |||
2287 | /* get the base address of the cp resident buffer supply queue entries */ | ||
2288 | cp_entry = fore200e->virt_base + | ||
2289 | fore200e->bus->read(&fore200e->cp_queues->cp_bsq[ scheme ][ magn ]); | ||
2290 | |||
2291 | /* fill the host resident and cp resident buffer supply queue entries */ | ||
2292 | for (i = 0; i < QUEUE_SIZE_BS; i++) { | ||
2293 | |||
2294 | bsq->host_entry[ i ].status = | ||
2295 | FORE200E_INDEX(bsq->status.align_addr, enum status, i); | ||
2296 | bsq->host_entry[ i ].rbd_block = | ||
2297 | FORE200E_INDEX(bsq->rbd_block.align_addr, struct rbd_block, i); | ||
2298 | bsq->host_entry[ i ].rbd_block_dma = | ||
2299 | FORE200E_DMA_INDEX(bsq->rbd_block.dma_addr, struct rbd_block, i); | ||
2300 | bsq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | ||
2301 | |||
2302 | *bsq->host_entry[ i ].status = STATUS_FREE; | ||
2303 | |||
2304 | fore200e->bus->write(FORE200E_DMA_INDEX(bsq->status.dma_addr, enum status, i), | ||
2305 | &cp_entry[ i ].status_haddr); | ||
2306 | } | ||
2307 | } | ||
2308 | } | ||
2309 | |||
2310 | fore200e->state = FORE200E_STATE_INIT_BSQ; | ||
2311 | return 0; | ||
2312 | } | ||
2313 | |||
2314 | |||
2315 | static int __init | ||
2316 | fore200e_init_rx_queue(struct fore200e* fore200e) | ||
2317 | { | ||
2318 | struct host_rxq* rxq = &fore200e->host_rxq; | ||
2319 | struct cp_rxq_entry __iomem * cp_entry; | ||
2320 | int i; | ||
2321 | |||
2322 | DPRINTK(2, "receive queue is being initialized\n"); | ||
2323 | |||
2324 | /* allocate and align the array of status words */ | ||
2325 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2326 | &rxq->status, | ||
2327 | sizeof(enum status), | ||
2328 | QUEUE_SIZE_RX, | ||
2329 | fore200e->bus->status_alignment) < 0) { | ||
2330 | return -ENOMEM; | ||
2331 | } | ||
2332 | |||
2333 | /* allocate and align the array of receive PDU descriptors */ | ||
2334 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2335 | &rxq->rpd, | ||
2336 | sizeof(struct rpd), | ||
2337 | QUEUE_SIZE_RX, | ||
2338 | fore200e->bus->descr_alignment) < 0) { | ||
2339 | |||
2340 | fore200e->bus->dma_chunk_free(fore200e, &rxq->status); | ||
2341 | return -ENOMEM; | ||
2342 | } | ||
2343 | |||
2344 | /* get the base address of the cp resident rx queue entries */ | ||
2345 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_rxq); | ||
2346 | |||
2347 | /* fill the host resident and cp resident rx entries */ | ||
2348 | for (i=0; i < QUEUE_SIZE_RX; i++) { | ||
2349 | |||
2350 | rxq->host_entry[ i ].status = | ||
2351 | FORE200E_INDEX(rxq->status.align_addr, enum status, i); | ||
2352 | rxq->host_entry[ i ].rpd = | ||
2353 | FORE200E_INDEX(rxq->rpd.align_addr, struct rpd, i); | ||
2354 | rxq->host_entry[ i ].rpd_dma = | ||
2355 | FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i); | ||
2356 | rxq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | ||
2357 | |||
2358 | *rxq->host_entry[ i ].status = STATUS_FREE; | ||
2359 | |||
2360 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->status.dma_addr, enum status, i), | ||
2361 | &cp_entry[ i ].status_haddr); | ||
2362 | |||
2363 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i), | ||
2364 | &cp_entry[ i ].rpd_haddr); | ||
2365 | } | ||
2366 | |||
2367 | /* set the head entry of the queue */ | ||
2368 | rxq->head = 0; | ||
2369 | |||
2370 | fore200e->state = FORE200E_STATE_INIT_RXQ; | ||
2371 | return 0; | ||
2372 | } | ||
2373 | |||
2374 | |||
2375 | static int __init | ||
2376 | fore200e_init_tx_queue(struct fore200e* fore200e) | ||
2377 | { | ||
2378 | struct host_txq* txq = &fore200e->host_txq; | ||
2379 | struct cp_txq_entry __iomem * cp_entry; | ||
2380 | int i; | ||
2381 | |||
2382 | DPRINTK(2, "transmit queue is being initialized\n"); | ||
2383 | |||
2384 | /* allocate and align the array of status words */ | ||
2385 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2386 | &txq->status, | ||
2387 | sizeof(enum status), | ||
2388 | QUEUE_SIZE_TX, | ||
2389 | fore200e->bus->status_alignment) < 0) { | ||
2390 | return -ENOMEM; | ||
2391 | } | ||
2392 | |||
2393 | /* allocate and align the array of transmit PDU descriptors */ | ||
2394 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2395 | &txq->tpd, | ||
2396 | sizeof(struct tpd), | ||
2397 | QUEUE_SIZE_TX, | ||
2398 | fore200e->bus->descr_alignment) < 0) { | ||
2399 | |||
2400 | fore200e->bus->dma_chunk_free(fore200e, &txq->status); | ||
2401 | return -ENOMEM; | ||
2402 | } | ||
2403 | |||
2404 | /* get the base address of the cp resident tx queue entries */ | ||
2405 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_txq); | ||
2406 | |||
2407 | /* fill the host resident and cp resident tx entries */ | ||
2408 | for (i=0; i < QUEUE_SIZE_TX; i++) { | ||
2409 | |||
2410 | txq->host_entry[ i ].status = | ||
2411 | FORE200E_INDEX(txq->status.align_addr, enum status, i); | ||
2412 | txq->host_entry[ i ].tpd = | ||
2413 | FORE200E_INDEX(txq->tpd.align_addr, struct tpd, i); | ||
2414 | txq->host_entry[ i ].tpd_dma = | ||
2415 | FORE200E_DMA_INDEX(txq->tpd.dma_addr, struct tpd, i); | ||
2416 | txq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | ||
2417 | |||
2418 | *txq->host_entry[ i ].status = STATUS_FREE; | ||
2419 | |||
2420 | fore200e->bus->write(FORE200E_DMA_INDEX(txq->status.dma_addr, enum status, i), | ||
2421 | &cp_entry[ i ].status_haddr); | ||
2422 | |||
2423 | /* although there is a one-to-one mapping of tx queue entries and tpds, | ||
2424 | we do not write here the DMA (physical) base address of each tpd into | ||
2425 | the related cp resident entry, because the cp relies on this write | ||
2426 | operation to detect that a new pdu has been submitted for tx */ | ||
2427 | } | ||
2428 | |||
2429 | /* set the head and tail entries of the queue */ | ||
2430 | txq->head = 0; | ||
2431 | txq->tail = 0; | ||
2432 | |||
2433 | fore200e->state = FORE200E_STATE_INIT_TXQ; | ||
2434 | return 0; | ||
2435 | } | ||
2436 | |||
2437 | |||
2438 | static int __init | ||
2439 | fore200e_init_cmd_queue(struct fore200e* fore200e) | ||
2440 | { | ||
2441 | struct host_cmdq* cmdq = &fore200e->host_cmdq; | ||
2442 | struct cp_cmdq_entry __iomem * cp_entry; | ||
2443 | int i; | ||
2444 | |||
2445 | DPRINTK(2, "command queue is being initialized\n"); | ||
2446 | |||
2447 | /* allocate and align the array of status words */ | ||
2448 | if (fore200e->bus->dma_chunk_alloc(fore200e, | ||
2449 | &cmdq->status, | ||
2450 | sizeof(enum status), | ||
2451 | QUEUE_SIZE_CMD, | ||
2452 | fore200e->bus->status_alignment) < 0) { | ||
2453 | return -ENOMEM; | ||
2454 | } | ||
2455 | |||
2456 | /* get the base address of the cp resident cmd queue entries */ | ||
2457 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_cmdq); | ||
2458 | |||
2459 | /* fill the host resident and cp resident cmd entries */ | ||
2460 | for (i=0; i < QUEUE_SIZE_CMD; i++) { | ||
2461 | |||
2462 | cmdq->host_entry[ i ].status = | ||
2463 | FORE200E_INDEX(cmdq->status.align_addr, enum status, i); | ||
2464 | cmdq->host_entry[ i ].cp_entry = &cp_entry[ i ]; | ||
2465 | |||
2466 | *cmdq->host_entry[ i ].status = STATUS_FREE; | ||
2467 | |||
2468 | fore200e->bus->write(FORE200E_DMA_INDEX(cmdq->status.dma_addr, enum status, i), | ||
2469 | &cp_entry[ i ].status_haddr); | ||
2470 | } | ||
2471 | |||
2472 | /* set the head entry of the queue */ | ||
2473 | cmdq->head = 0; | ||
2474 | |||
2475 | fore200e->state = FORE200E_STATE_INIT_CMDQ; | ||
2476 | return 0; | ||
2477 | } | ||
2478 | |||
2479 | |||
2480 | static void __init | ||
2481 | fore200e_param_bs_queue(struct fore200e* fore200e, | ||
2482 | enum buffer_scheme scheme, enum buffer_magn magn, | ||
2483 | int queue_length, int pool_size, int supply_blksize) | ||
2484 | { | ||
2485 | struct bs_spec __iomem * bs_spec = &fore200e->cp_queues->init.bs_spec[ scheme ][ magn ]; | ||
2486 | |||
2487 | fore200e->bus->write(queue_length, &bs_spec->queue_length); | ||
2488 | fore200e->bus->write(fore200e_rx_buf_size[ scheme ][ magn ], &bs_spec->buffer_size); | ||
2489 | fore200e->bus->write(pool_size, &bs_spec->pool_size); | ||
2490 | fore200e->bus->write(supply_blksize, &bs_spec->supply_blksize); | ||
2491 | } | ||
2492 | |||
2493 | |||
2494 | static int __init | ||
2495 | fore200e_initialize(struct fore200e* fore200e) | ||
2496 | { | ||
2497 | struct cp_queues __iomem * cpq; | ||
2498 | int ok, scheme, magn; | ||
2499 | |||
2500 | DPRINTK(2, "device %s being initialized\n", fore200e->name); | ||
2501 | |||
2502 | init_MUTEX(&fore200e->rate_sf); | ||
2503 | spin_lock_init(&fore200e->q_lock); | ||
2504 | |||
2505 | cpq = fore200e->cp_queues = fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET; | ||
2506 | |||
2507 | /* enable cp to host interrupts */ | ||
2508 | fore200e->bus->write(1, &cpq->imask); | ||
2509 | |||
2510 | if (fore200e->bus->irq_enable) | ||
2511 | fore200e->bus->irq_enable(fore200e); | ||
2512 | |||
2513 | fore200e->bus->write(NBR_CONNECT, &cpq->init.num_connect); | ||
2514 | |||
2515 | fore200e->bus->write(QUEUE_SIZE_CMD, &cpq->init.cmd_queue_len); | ||
2516 | fore200e->bus->write(QUEUE_SIZE_RX, &cpq->init.rx_queue_len); | ||
2517 | fore200e->bus->write(QUEUE_SIZE_TX, &cpq->init.tx_queue_len); | ||
2518 | |||
2519 | fore200e->bus->write(RSD_EXTENSION, &cpq->init.rsd_extension); | ||
2520 | fore200e->bus->write(TSD_EXTENSION, &cpq->init.tsd_extension); | ||
2521 | |||
2522 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) | ||
2523 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) | ||
2524 | fore200e_param_bs_queue(fore200e, scheme, magn, | ||
2525 | QUEUE_SIZE_BS, | ||
2526 | fore200e_rx_buf_nbr[ scheme ][ magn ], | ||
2527 | RBD_BLK_SIZE); | ||
2528 | |||
2529 | /* issue the initialize command */ | ||
2530 | fore200e->bus->write(STATUS_PENDING, &cpq->init.status); | ||
2531 | fore200e->bus->write(OPCODE_INITIALIZE, &cpq->init.opcode); | ||
2532 | |||
2533 | ok = fore200e_io_poll(fore200e, &cpq->init.status, STATUS_COMPLETE, 3000); | ||
2534 | if (ok == 0) { | ||
2535 | printk(FORE200E "device %s initialization failed\n", fore200e->name); | ||
2536 | return -ENODEV; | ||
2537 | } | ||
2538 | |||
2539 | printk(FORE200E "device %s initialized\n", fore200e->name); | ||
2540 | |||
2541 | fore200e->state = FORE200E_STATE_INITIALIZE; | ||
2542 | return 0; | ||
2543 | } | ||
2544 | |||
2545 | |||
2546 | static void __init | ||
2547 | fore200e_monitor_putc(struct fore200e* fore200e, char c) | ||
2548 | { | ||
2549 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; | ||
2550 | |||
2551 | #if 0 | ||
2552 | printk("%c", c); | ||
2553 | #endif | ||
2554 | fore200e->bus->write(((u32) c) | FORE200E_CP_MONITOR_UART_AVAIL, &monitor->soft_uart.send); | ||
2555 | } | ||
2556 | |||
2557 | |||
2558 | static int __init | ||
2559 | fore200e_monitor_getc(struct fore200e* fore200e) | ||
2560 | { | ||
2561 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; | ||
2562 | unsigned long timeout = jiffies + msecs_to_jiffies(50); | ||
2563 | int c; | ||
2564 | |||
2565 | while (time_before(jiffies, timeout)) { | ||
2566 | |||
2567 | c = (int) fore200e->bus->read(&monitor->soft_uart.recv); | ||
2568 | |||
2569 | if (c & FORE200E_CP_MONITOR_UART_AVAIL) { | ||
2570 | |||
2571 | fore200e->bus->write(FORE200E_CP_MONITOR_UART_FREE, &monitor->soft_uart.recv); | ||
2572 | #if 0 | ||
2573 | printk("%c", c & 0xFF); | ||
2574 | #endif | ||
2575 | return c & 0xFF; | ||
2576 | } | ||
2577 | } | ||
2578 | |||
2579 | return -1; | ||
2580 | } | ||
2581 | |||
2582 | |||
2583 | static void __init | ||
2584 | fore200e_monitor_puts(struct fore200e* fore200e, char* str) | ||
2585 | { | ||
2586 | while (*str) { | ||
2587 | |||
2588 | /* the i960 monitor doesn't accept any new character if it has something to say */ | ||
2589 | while (fore200e_monitor_getc(fore200e) >= 0); | ||
2590 | |||
2591 | fore200e_monitor_putc(fore200e, *str++); | ||
2592 | } | ||
2593 | |||
2594 | while (fore200e_monitor_getc(fore200e) >= 0); | ||
2595 | } | ||
2596 | |||
2597 | |||
2598 | static int __init | ||
2599 | fore200e_start_fw(struct fore200e* fore200e) | ||
2600 | { | ||
2601 | int ok; | ||
2602 | char cmd[ 48 ]; | ||
2603 | struct fw_header* fw_header = (struct fw_header*) fore200e->bus->fw_data; | ||
2604 | |||
2605 | DPRINTK(2, "device %s firmware being started\n", fore200e->name); | ||
2606 | |||
2607 | #if defined(__sparc_v9__) | ||
2608 | /* reported to be required by SBA cards on some sparc64 hosts */ | ||
2609 | fore200e_spin(100); | ||
2610 | #endif | ||
2611 | |||
2612 | sprintf(cmd, "\rgo %x\r", le32_to_cpu(fw_header->start_offset)); | ||
2613 | |||
2614 | fore200e_monitor_puts(fore200e, cmd); | ||
2615 | |||
2616 | ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000); | ||
2617 | if (ok == 0) { | ||
2618 | printk(FORE200E "device %s firmware didn't start\n", fore200e->name); | ||
2619 | return -ENODEV; | ||
2620 | } | ||
2621 | |||
2622 | printk(FORE200E "device %s firmware started\n", fore200e->name); | ||
2623 | |||
2624 | fore200e->state = FORE200E_STATE_START_FW; | ||
2625 | return 0; | ||
2626 | } | ||
2627 | |||
2628 | |||
2629 | static int __init | ||
2630 | fore200e_load_fw(struct fore200e* fore200e) | ||
2631 | { | ||
2632 | u32* fw_data = (u32*) fore200e->bus->fw_data; | ||
2633 | u32 fw_size = (u32) *fore200e->bus->fw_size / sizeof(u32); | ||
2634 | |||
2635 | struct fw_header* fw_header = (struct fw_header*) fw_data; | ||
2636 | |||
2637 | u32 __iomem *load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset); | ||
2638 | |||
2639 | DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)\n", | ||
2640 | fore200e->name, load_addr, fw_size); | ||
2641 | |||
2642 | if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) { | ||
2643 | printk(FORE200E "corrupted %s firmware image\n", fore200e->bus->model_name); | ||
2644 | return -ENODEV; | ||
2645 | } | ||
2646 | |||
2647 | for (; fw_size--; fw_data++, load_addr++) | ||
2648 | fore200e->bus->write(le32_to_cpu(*fw_data), load_addr); | ||
2649 | |||
2650 | fore200e->state = FORE200E_STATE_LOAD_FW; | ||
2651 | return 0; | ||
2652 | } | ||
2653 | |||
2654 | |||
2655 | static int __init | ||
2656 | fore200e_register(struct fore200e* fore200e) | ||
2657 | { | ||
2658 | struct atm_dev* atm_dev; | ||
2659 | |||
2660 | DPRINTK(2, "device %s being registered\n", fore200e->name); | ||
2661 | |||
2662 | atm_dev = atm_dev_register(fore200e->bus->proc_name, &fore200e_ops, -1, | ||
2663 | NULL); | ||
2664 | if (atm_dev == NULL) { | ||
2665 | printk(FORE200E "unable to register device %s\n", fore200e->name); | ||
2666 | return -ENODEV; | ||
2667 | } | ||
2668 | |||
2669 | atm_dev->dev_data = fore200e; | ||
2670 | fore200e->atm_dev = atm_dev; | ||
2671 | |||
2672 | atm_dev->ci_range.vpi_bits = FORE200E_VPI_BITS; | ||
2673 | atm_dev->ci_range.vci_bits = FORE200E_VCI_BITS; | ||
2674 | |||
2675 | fore200e->available_cell_rate = ATM_OC3_PCR; | ||
2676 | |||
2677 | fore200e->state = FORE200E_STATE_REGISTER; | ||
2678 | return 0; | ||
2679 | } | ||
2680 | |||
2681 | |||
2682 | static int __init | ||
2683 | fore200e_init(struct fore200e* fore200e) | ||
2684 | { | ||
2685 | if (fore200e_register(fore200e) < 0) | ||
2686 | return -ENODEV; | ||
2687 | |||
2688 | if (fore200e->bus->configure(fore200e) < 0) | ||
2689 | return -ENODEV; | ||
2690 | |||
2691 | if (fore200e->bus->map(fore200e) < 0) | ||
2692 | return -ENODEV; | ||
2693 | |||
2694 | if (fore200e_reset(fore200e, 1) < 0) | ||
2695 | return -ENODEV; | ||
2696 | |||
2697 | if (fore200e_load_fw(fore200e) < 0) | ||
2698 | return -ENODEV; | ||
2699 | |||
2700 | if (fore200e_start_fw(fore200e) < 0) | ||
2701 | return -ENODEV; | ||
2702 | |||
2703 | if (fore200e_initialize(fore200e) < 0) | ||
2704 | return -ENODEV; | ||
2705 | |||
2706 | if (fore200e_init_cmd_queue(fore200e) < 0) | ||
2707 | return -ENOMEM; | ||
2708 | |||
2709 | if (fore200e_init_tx_queue(fore200e) < 0) | ||
2710 | return -ENOMEM; | ||
2711 | |||
2712 | if (fore200e_init_rx_queue(fore200e) < 0) | ||
2713 | return -ENOMEM; | ||
2714 | |||
2715 | if (fore200e_init_bs_queue(fore200e) < 0) | ||
2716 | return -ENOMEM; | ||
2717 | |||
2718 | if (fore200e_alloc_rx_buf(fore200e) < 0) | ||
2719 | return -ENOMEM; | ||
2720 | |||
2721 | if (fore200e_get_esi(fore200e) < 0) | ||
2722 | return -EIO; | ||
2723 | |||
2724 | if (fore200e_irq_request(fore200e) < 0) | ||
2725 | return -EBUSY; | ||
2726 | |||
2727 | fore200e_supply(fore200e); | ||
2728 | |||
2729 | /* all done, board initialization is now complete */ | ||
2730 | fore200e->state = FORE200E_STATE_COMPLETE; | ||
2731 | return 0; | ||
2732 | } | ||
2733 | |||
2734 | |||
2735 | static int __devinit | ||
2736 | fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) | ||
2737 | { | ||
2738 | const struct fore200e_bus* bus = (struct fore200e_bus*) pci_ent->driver_data; | ||
2739 | struct fore200e* fore200e; | ||
2740 | int err = 0; | ||
2741 | static int index = 0; | ||
2742 | |||
2743 | if (pci_enable_device(pci_dev)) { | ||
2744 | err = -EINVAL; | ||
2745 | goto out; | ||
2746 | } | ||
2747 | |||
2748 | fore200e = fore200e_kmalloc(sizeof(struct fore200e), GFP_KERNEL); | ||
2749 | if (fore200e == NULL) { | ||
2750 | err = -ENOMEM; | ||
2751 | goto out_disable; | ||
2752 | } | ||
2753 | |||
2754 | fore200e->bus = bus; | ||
2755 | fore200e->bus_dev = pci_dev; | ||
2756 | fore200e->irq = pci_dev->irq; | ||
2757 | fore200e->phys_base = pci_resource_start(pci_dev, 0); | ||
2758 | |||
2759 | sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1); | ||
2760 | |||
2761 | pci_set_master(pci_dev); | ||
2762 | |||
2763 | printk(FORE200E "device %s found at 0x%lx, IRQ %s\n", | ||
2764 | fore200e->bus->model_name, | ||
2765 | fore200e->phys_base, fore200e_irq_itoa(fore200e->irq)); | ||
2766 | |||
2767 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); | ||
2768 | |||
2769 | err = fore200e_init(fore200e); | ||
2770 | if (err < 0) { | ||
2771 | fore200e_shutdown(fore200e); | ||
2772 | goto out_free; | ||
2773 | } | ||
2774 | |||
2775 | ++index; | ||
2776 | pci_set_drvdata(pci_dev, fore200e); | ||
2777 | |||
2778 | out: | ||
2779 | return err; | ||
2780 | |||
2781 | out_free: | ||
2782 | kfree(fore200e); | ||
2783 | out_disable: | ||
2784 | pci_disable_device(pci_dev); | ||
2785 | goto out; | ||
2786 | } | ||
2787 | |||
2788 | |||
2789 | static void __devexit fore200e_pca_remove_one(struct pci_dev *pci_dev) | ||
2790 | { | ||
2791 | struct fore200e *fore200e; | ||
2792 | |||
2793 | fore200e = pci_get_drvdata(pci_dev); | ||
2794 | |||
2795 | list_del(&fore200e->entry); | ||
2796 | |||
2797 | fore200e_shutdown(fore200e); | ||
2798 | kfree(fore200e); | ||
2799 | pci_disable_device(pci_dev); | ||
2800 | } | ||
2801 | |||
2802 | |||
2803 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
2804 | static struct pci_device_id fore200e_pca_tbl[] = { | ||
2805 | { PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID, | ||
2806 | 0, 0, (unsigned long) &fore200e_bus[0] }, | ||
2807 | { 0, } | ||
2808 | }; | ||
2809 | |||
2810 | MODULE_DEVICE_TABLE(pci, fore200e_pca_tbl); | ||
2811 | |||
2812 | static struct pci_driver fore200e_pca_driver = { | ||
2813 | .name = "fore_200e", | ||
2814 | .probe = fore200e_pca_detect, | ||
2815 | .remove = __devexit_p(fore200e_pca_remove_one), | ||
2816 | .id_table = fore200e_pca_tbl, | ||
2817 | }; | ||
2818 | #endif | ||
2819 | |||
2820 | |||
2821 | static int __init | ||
2822 | fore200e_module_init(void) | ||
2823 | { | ||
2824 | const struct fore200e_bus* bus; | ||
2825 | struct fore200e* fore200e; | ||
2826 | int index; | ||
2827 | |||
2828 | printk(FORE200E "FORE Systems 200E-series ATM driver - version " FORE200E_VERSION "\n"); | ||
2829 | |||
2830 | /* for each configured bus interface */ | ||
2831 | for (bus = fore200e_bus; bus->model_name; bus++) { | ||
2832 | |||
2833 | /* detect all boards present on that bus */ | ||
2834 | for (index = 0; bus->detect && (fore200e = bus->detect(bus, index)); index++) { | ||
2835 | |||
2836 | printk(FORE200E "device %s found at 0x%lx, IRQ %s\n", | ||
2837 | fore200e->bus->model_name, | ||
2838 | fore200e->phys_base, fore200e_irq_itoa(fore200e->irq)); | ||
2839 | |||
2840 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); | ||
2841 | |||
2842 | if (fore200e_init(fore200e) < 0) { | ||
2843 | |||
2844 | fore200e_shutdown(fore200e); | ||
2845 | break; | ||
2846 | } | ||
2847 | |||
2848 | list_add(&fore200e->entry, &fore200e_boards); | ||
2849 | } | ||
2850 | } | ||
2851 | |||
2852 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
2853 | if (!pci_module_init(&fore200e_pca_driver)) | ||
2854 | return 0; | ||
2855 | #endif | ||
2856 | |||
2857 | if (!list_empty(&fore200e_boards)) | ||
2858 | return 0; | ||
2859 | |||
2860 | return -ENODEV; | ||
2861 | } | ||
2862 | |||
2863 | |||
2864 | static void __exit | ||
2865 | fore200e_module_cleanup(void) | ||
2866 | { | ||
2867 | struct fore200e *fore200e, *next; | ||
2868 | |||
2869 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
2870 | pci_unregister_driver(&fore200e_pca_driver); | ||
2871 | #endif | ||
2872 | |||
2873 | list_for_each_entry_safe(fore200e, next, &fore200e_boards, entry) { | ||
2874 | fore200e_shutdown(fore200e); | ||
2875 | kfree(fore200e); | ||
2876 | } | ||
2877 | DPRINTK(1, "module being removed\n"); | ||
2878 | } | ||
2879 | |||
2880 | |||
2881 | static int | ||
2882 | fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) | ||
2883 | { | ||
2884 | struct fore200e* fore200e = FORE200E_DEV(dev); | ||
2885 | struct fore200e_vcc* fore200e_vcc; | ||
2886 | struct atm_vcc* vcc; | ||
2887 | int i, len, left = *pos; | ||
2888 | unsigned long flags; | ||
2889 | |||
2890 | if (!left--) { | ||
2891 | |||
2892 | if (fore200e_getstats(fore200e) < 0) | ||
2893 | return -EIO; | ||
2894 | |||
2895 | len = sprintf(page,"\n" | ||
2896 | " device:\n" | ||
2897 | " internal name:\t\t%s\n", fore200e->name); | ||
2898 | |||
2899 | /* print bus-specific information */ | ||
2900 | if (fore200e->bus->proc_read) | ||
2901 | len += fore200e->bus->proc_read(fore200e, page + len); | ||
2902 | |||
2903 | len += sprintf(page + len, | ||
2904 | " interrupt line:\t\t%s\n" | ||
2905 | " physical base address:\t0x%p\n" | ||
2906 | " virtual base address:\t0x%p\n" | ||
2907 | " factory address (ESI):\t%02x:%02x:%02x:%02x:%02x:%02x\n" | ||
2908 | " board serial number:\t\t%d\n\n", | ||
2909 | fore200e_irq_itoa(fore200e->irq), | ||
2910 | (void*)fore200e->phys_base, | ||
2911 | fore200e->virt_base, | ||
2912 | fore200e->esi[0], fore200e->esi[1], fore200e->esi[2], | ||
2913 | fore200e->esi[3], fore200e->esi[4], fore200e->esi[5], | ||
2914 | fore200e->esi[4] * 256 + fore200e->esi[5]); | ||
2915 | |||
2916 | return len; | ||
2917 | } | ||
2918 | |||
2919 | if (!left--) | ||
2920 | return sprintf(page, | ||
2921 | " free small bufs, scheme 1:\t%d\n" | ||
2922 | " free large bufs, scheme 1:\t%d\n" | ||
2923 | " free small bufs, scheme 2:\t%d\n" | ||
2924 | " free large bufs, scheme 2:\t%d\n", | ||
2925 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_SMALL ].freebuf_count, | ||
2926 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_LARGE ].freebuf_count, | ||
2927 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_SMALL ].freebuf_count, | ||
2928 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_LARGE ].freebuf_count); | ||
2929 | |||
2930 | if (!left--) { | ||
2931 | u32 hb = fore200e->bus->read(&fore200e->cp_queues->heartbeat); | ||
2932 | |||
2933 | len = sprintf(page,"\n\n" | ||
2934 | " cell processor:\n" | ||
2935 | " heartbeat state:\t\t"); | ||
2936 | |||
2937 | if (hb >> 16 != 0xDEAD) | ||
2938 | len += sprintf(page + len, "0x%08x\n", hb); | ||
2939 | else | ||
2940 | len += sprintf(page + len, "*** FATAL ERROR %04x ***\n", hb & 0xFFFF); | ||
2941 | |||
2942 | return len; | ||
2943 | } | ||
2944 | |||
2945 | if (!left--) { | ||
2946 | static const char* media_name[] = { | ||
2947 | "unshielded twisted pair", | ||
2948 | "multimode optical fiber ST", | ||
2949 | "multimode optical fiber SC", | ||
2950 | "single-mode optical fiber ST", | ||
2951 | "single-mode optical fiber SC", | ||
2952 | "unknown" | ||
2953 | }; | ||
2954 | |||
2955 | static const char* oc3_mode[] = { | ||
2956 | "normal operation", | ||
2957 | "diagnostic loopback", | ||
2958 | "line loopback", | ||
2959 | "unknown" | ||
2960 | }; | ||
2961 | |||
2962 | u32 fw_release = fore200e->bus->read(&fore200e->cp_queues->fw_release); | ||
2963 | u32 mon960_release = fore200e->bus->read(&fore200e->cp_queues->mon960_release); | ||
2964 | u32 oc3_revision = fore200e->bus->read(&fore200e->cp_queues->oc3_revision); | ||
2965 | u32 media_index = FORE200E_MEDIA_INDEX(fore200e->bus->read(&fore200e->cp_queues->media_type)); | ||
2966 | u32 oc3_index; | ||
2967 | |||
2968 | if ((media_index < 0) || (media_index > 4)) | ||
2969 | media_index = 5; | ||
2970 | |||
2971 | switch (fore200e->loop_mode) { | ||
2972 | case ATM_LM_NONE: oc3_index = 0; | ||
2973 | break; | ||
2974 | case ATM_LM_LOC_PHY: oc3_index = 1; | ||
2975 | break; | ||
2976 | case ATM_LM_RMT_PHY: oc3_index = 2; | ||
2977 | break; | ||
2978 | default: oc3_index = 3; | ||
2979 | } | ||
2980 | |||
2981 | return sprintf(page, | ||
2982 | " firmware release:\t\t%d.%d.%d\n" | ||
2983 | " monitor release:\t\t%d.%d\n" | ||
2984 | " media type:\t\t\t%s\n" | ||
2985 | " OC-3 revision:\t\t0x%x\n" | ||
2986 | " OC-3 mode:\t\t\t%s", | ||
2987 | fw_release >> 16, fw_release << 16 >> 24, fw_release << 24 >> 24, | ||
2988 | mon960_release >> 16, mon960_release << 16 >> 16, | ||
2989 | media_name[ media_index ], | ||
2990 | oc3_revision, | ||
2991 | oc3_mode[ oc3_index ]); | ||
2992 | } | ||
2993 | |||
2994 | if (!left--) { | ||
2995 | struct cp_monitor __iomem * cp_monitor = fore200e->cp_monitor; | ||
2996 | |||
2997 | return sprintf(page, | ||
2998 | "\n\n" | ||
2999 | " monitor:\n" | ||
3000 | " version number:\t\t%d\n" | ||
3001 | " boot status word:\t\t0x%08x\n", | ||
3002 | fore200e->bus->read(&cp_monitor->mon_version), | ||
3003 | fore200e->bus->read(&cp_monitor->bstat)); | ||
3004 | } | ||
3005 | |||
3006 | if (!left--) | ||
3007 | return sprintf(page, | ||
3008 | "\n" | ||
3009 | " device statistics:\n" | ||
3010 | " 4b5b:\n" | ||
3011 | " crc_header_errors:\t\t%10u\n" | ||
3012 | " framing_errors:\t\t%10u\n", | ||
3013 | fore200e_swap(fore200e->stats->phy.crc_header_errors), | ||
3014 | fore200e_swap(fore200e->stats->phy.framing_errors)); | ||
3015 | |||
3016 | if (!left--) | ||
3017 | return sprintf(page, "\n" | ||
3018 | " OC-3:\n" | ||
3019 | " section_bip8_errors:\t%10u\n" | ||
3020 | " path_bip8_errors:\t\t%10u\n" | ||
3021 | " line_bip24_errors:\t\t%10u\n" | ||
3022 | " line_febe_errors:\t\t%10u\n" | ||
3023 | " path_febe_errors:\t\t%10u\n" | ||
3024 | " corr_hcs_errors:\t\t%10u\n" | ||
3025 | " ucorr_hcs_errors:\t\t%10u\n", | ||
3026 | fore200e_swap(fore200e->stats->oc3.section_bip8_errors), | ||
3027 | fore200e_swap(fore200e->stats->oc3.path_bip8_errors), | ||
3028 | fore200e_swap(fore200e->stats->oc3.line_bip24_errors), | ||
3029 | fore200e_swap(fore200e->stats->oc3.line_febe_errors), | ||
3030 | fore200e_swap(fore200e->stats->oc3.path_febe_errors), | ||
3031 | fore200e_swap(fore200e->stats->oc3.corr_hcs_errors), | ||
3032 | fore200e_swap(fore200e->stats->oc3.ucorr_hcs_errors)); | ||
3033 | |||
3034 | if (!left--) | ||
3035 | return sprintf(page,"\n" | ||
3036 | " ATM:\t\t\t\t cells\n" | ||
3037 | " TX:\t\t\t%10u\n" | ||
3038 | " RX:\t\t\t%10u\n" | ||
3039 | " vpi out of range:\t\t%10u\n" | ||
3040 | " vpi no conn:\t\t%10u\n" | ||
3041 | " vci out of range:\t\t%10u\n" | ||
3042 | " vci no conn:\t\t%10u\n", | ||
3043 | fore200e_swap(fore200e->stats->atm.cells_transmitted), | ||
3044 | fore200e_swap(fore200e->stats->atm.cells_received), | ||
3045 | fore200e_swap(fore200e->stats->atm.vpi_bad_range), | ||
3046 | fore200e_swap(fore200e->stats->atm.vpi_no_conn), | ||
3047 | fore200e_swap(fore200e->stats->atm.vci_bad_range), | ||
3048 | fore200e_swap(fore200e->stats->atm.vci_no_conn)); | ||
3049 | |||
3050 | if (!left--) | ||
3051 | return sprintf(page,"\n" | ||
3052 | " AAL0:\t\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 | fore200e_swap(fore200e->stats->aal0.cells_transmitted), | ||
3057 | fore200e_swap(fore200e->stats->aal0.cells_received), | ||
3058 | fore200e_swap(fore200e->stats->aal0.cells_dropped)); | ||
3059 | |||
3060 | if (!left--) | ||
3061 | return sprintf(page,"\n" | ||
3062 | " AAL3/4:\n" | ||
3063 | " SAR sublayer:\t\t cells\n" | ||
3064 | " TX:\t\t\t%10u\n" | ||
3065 | " RX:\t\t\t%10u\n" | ||
3066 | " dropped:\t\t\t%10u\n" | ||
3067 | " CRC errors:\t\t%10u\n" | ||
3068 | " protocol errors:\t\t%10u\n\n" | ||
3069 | " CS sublayer:\t\t PDUs\n" | ||
3070 | " TX:\t\t\t%10u\n" | ||
3071 | " RX:\t\t\t%10u\n" | ||
3072 | " dropped:\t\t\t%10u\n" | ||
3073 | " protocol errors:\t\t%10u\n", | ||
3074 | fore200e_swap(fore200e->stats->aal34.cells_transmitted), | ||
3075 | fore200e_swap(fore200e->stats->aal34.cells_received), | ||
3076 | fore200e_swap(fore200e->stats->aal34.cells_dropped), | ||
3077 | fore200e_swap(fore200e->stats->aal34.cells_crc_errors), | ||
3078 | fore200e_swap(fore200e->stats->aal34.cells_protocol_errors), | ||
3079 | fore200e_swap(fore200e->stats->aal34.cspdus_transmitted), | ||
3080 | fore200e_swap(fore200e->stats->aal34.cspdus_received), | ||
3081 | fore200e_swap(fore200e->stats->aal34.cspdus_dropped), | ||
3082 | fore200e_swap(fore200e->stats->aal34.cspdus_protocol_errors)); | ||
3083 | |||
3084 | if (!left--) | ||
3085 | return sprintf(page,"\n" | ||
3086 | " AAL5:\n" | ||
3087 | " SAR sublayer:\t\t cells\n" | ||
3088 | " TX:\t\t\t%10u\n" | ||
3089 | " RX:\t\t\t%10u\n" | ||
3090 | " dropped:\t\t\t%10u\n" | ||
3091 | " congestions:\t\t%10u\n\n" | ||
3092 | " CS sublayer:\t\t PDUs\n" | ||
3093 | " TX:\t\t\t%10u\n" | ||
3094 | " RX:\t\t\t%10u\n" | ||
3095 | " dropped:\t\t\t%10u\n" | ||
3096 | " CRC errors:\t\t%10u\n" | ||
3097 | " protocol errors:\t\t%10u\n", | ||
3098 | fore200e_swap(fore200e->stats->aal5.cells_transmitted), | ||
3099 | fore200e_swap(fore200e->stats->aal5.cells_received), | ||
3100 | fore200e_swap(fore200e->stats->aal5.cells_dropped), | ||
3101 | fore200e_swap(fore200e->stats->aal5.congestion_experienced), | ||
3102 | fore200e_swap(fore200e->stats->aal5.cspdus_transmitted), | ||
3103 | fore200e_swap(fore200e->stats->aal5.cspdus_received), | ||
3104 | fore200e_swap(fore200e->stats->aal5.cspdus_dropped), | ||
3105 | fore200e_swap(fore200e->stats->aal5.cspdus_crc_errors), | ||
3106 | fore200e_swap(fore200e->stats->aal5.cspdus_protocol_errors)); | ||
3107 | |||
3108 | if (!left--) | ||
3109 | return sprintf(page,"\n" | ||
3110 | " AUX:\t\t allocation failures\n" | ||
3111 | " small b1:\t\t\t%10u\n" | ||
3112 | " large b1:\t\t\t%10u\n" | ||
3113 | " small b2:\t\t\t%10u\n" | ||
3114 | " large b2:\t\t\t%10u\n" | ||
3115 | " RX PDUs:\t\t\t%10u\n" | ||
3116 | " TX PDUs:\t\t\t%10lu\n", | ||
3117 | fore200e_swap(fore200e->stats->aux.small_b1_failed), | ||
3118 | fore200e_swap(fore200e->stats->aux.large_b1_failed), | ||
3119 | fore200e_swap(fore200e->stats->aux.small_b2_failed), | ||
3120 | fore200e_swap(fore200e->stats->aux.large_b2_failed), | ||
3121 | fore200e_swap(fore200e->stats->aux.rpd_alloc_failed), | ||
3122 | fore200e->tx_sat); | ||
3123 | |||
3124 | if (!left--) | ||
3125 | return sprintf(page,"\n" | ||
3126 | " receive carrier:\t\t\t%s\n", | ||
3127 | fore200e->stats->aux.receive_carrier ? "ON" : "OFF!"); | ||
3128 | |||
3129 | if (!left--) { | ||
3130 | return sprintf(page,"\n" | ||
3131 | " VCCs:\n address VPI VCI AAL " | ||
3132 | "TX PDUs TX min/max size RX PDUs RX min/max size\n"); | ||
3133 | } | ||
3134 | |||
3135 | for (i = 0; i < NBR_CONNECT; i++) { | ||
3136 | |||
3137 | vcc = fore200e->vc_map[i].vcc; | ||
3138 | |||
3139 | if (vcc == NULL) | ||
3140 | continue; | ||
3141 | |||
3142 | spin_lock_irqsave(&fore200e->q_lock, flags); | ||
3143 | |||
3144 | if (vcc && test_bit(ATM_VF_READY, &vcc->flags) && !left--) { | ||
3145 | |||
3146 | fore200e_vcc = FORE200E_VCC(vcc); | ||
3147 | ASSERT(fore200e_vcc); | ||
3148 | |||
3149 | len = sprintf(page, | ||
3150 | " %08x %03d %05d %1d %09lu %05d/%05d %09lu %05d/%05d\n", | ||
3151 | (u32)(unsigned long)vcc, | ||
3152 | vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), | ||
3153 | fore200e_vcc->tx_pdu, | ||
3154 | fore200e_vcc->tx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->tx_min_pdu, | ||
3155 | fore200e_vcc->tx_max_pdu, | ||
3156 | fore200e_vcc->rx_pdu, | ||
3157 | fore200e_vcc->rx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->rx_min_pdu, | ||
3158 | fore200e_vcc->rx_max_pdu); | ||
3159 | |||
3160 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
3161 | return len; | ||
3162 | } | ||
3163 | |||
3164 | spin_unlock_irqrestore(&fore200e->q_lock, flags); | ||
3165 | } | ||
3166 | |||
3167 | return 0; | ||
3168 | } | ||
3169 | |||
3170 | module_init(fore200e_module_init); | ||
3171 | module_exit(fore200e_module_cleanup); | ||
3172 | |||
3173 | |||
3174 | static const struct atmdev_ops fore200e_ops = | ||
3175 | { | ||
3176 | .open = fore200e_open, | ||
3177 | .close = fore200e_close, | ||
3178 | .ioctl = fore200e_ioctl, | ||
3179 | .getsockopt = fore200e_getsockopt, | ||
3180 | .setsockopt = fore200e_setsockopt, | ||
3181 | .send = fore200e_send, | ||
3182 | .change_qos = fore200e_change_qos, | ||
3183 | .proc_read = fore200e_proc_read, | ||
3184 | .owner = THIS_MODULE | ||
3185 | }; | ||
3186 | |||
3187 | |||
3188 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
3189 | extern const unsigned char _fore200e_pca_fw_data[]; | ||
3190 | extern const unsigned int _fore200e_pca_fw_size; | ||
3191 | #endif | ||
3192 | #ifdef CONFIG_ATM_FORE200E_SBA | ||
3193 | extern const unsigned char _fore200e_sba_fw_data[]; | ||
3194 | extern const unsigned int _fore200e_sba_fw_size; | ||
3195 | #endif | ||
3196 | |||
3197 | static const struct fore200e_bus fore200e_bus[] = { | ||
3198 | #ifdef CONFIG_ATM_FORE200E_PCA | ||
3199 | { "PCA-200E", "pca200e", 32, 4, 32, | ||
3200 | _fore200e_pca_fw_data, &_fore200e_pca_fw_size, | ||
3201 | fore200e_pca_read, | ||
3202 | fore200e_pca_write, | ||
3203 | fore200e_pca_dma_map, | ||
3204 | fore200e_pca_dma_unmap, | ||
3205 | fore200e_pca_dma_sync_for_cpu, | ||
3206 | fore200e_pca_dma_sync_for_device, | ||
3207 | fore200e_pca_dma_chunk_alloc, | ||
3208 | fore200e_pca_dma_chunk_free, | ||
3209 | NULL, | ||
3210 | fore200e_pca_configure, | ||
3211 | fore200e_pca_map, | ||
3212 | fore200e_pca_reset, | ||
3213 | fore200e_pca_prom_read, | ||
3214 | fore200e_pca_unmap, | ||
3215 | NULL, | ||
3216 | fore200e_pca_irq_check, | ||
3217 | fore200e_pca_irq_ack, | ||
3218 | fore200e_pca_proc_read, | ||
3219 | }, | ||
3220 | #endif | ||
3221 | #ifdef CONFIG_ATM_FORE200E_SBA | ||
3222 | { "SBA-200E", "sba200e", 32, 64, 32, | ||
3223 | _fore200e_sba_fw_data, &_fore200e_sba_fw_size, | ||
3224 | fore200e_sba_read, | ||
3225 | fore200e_sba_write, | ||
3226 | fore200e_sba_dma_map, | ||
3227 | fore200e_sba_dma_unmap, | ||
3228 | fore200e_sba_dma_sync_for_cpu, | ||
3229 | fore200e_sba_dma_sync_for_device, | ||
3230 | fore200e_sba_dma_chunk_alloc, | ||
3231 | fore200e_sba_dma_chunk_free, | ||
3232 | fore200e_sba_detect, | ||
3233 | fore200e_sba_configure, | ||
3234 | fore200e_sba_map, | ||
3235 | fore200e_sba_reset, | ||
3236 | fore200e_sba_prom_read, | ||
3237 | fore200e_sba_unmap, | ||
3238 | fore200e_sba_irq_enable, | ||
3239 | fore200e_sba_irq_check, | ||
3240 | fore200e_sba_irq_ack, | ||
3241 | fore200e_sba_proc_read, | ||
3242 | }, | ||
3243 | #endif | ||
3244 | {} | ||
3245 | }; | ||
3246 | |||
3247 | #ifdef MODULE_LICENSE | ||
3248 | MODULE_LICENSE("GPL"); | ||
3249 | #endif | ||