Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | A FORE Systems 200E-series driver for ATM on Linux. |
| 3 | Christophe Lizzi (lizzi@cnam.fr), October 1999-March 2003. |
| 4 | |
| 5 | Based on the PCA-200E driver from Uwe Dannowski (Uwe.Dannowski@inf.tu-dresden.de). |
| 6 | |
| 7 | This driver simultaneously supports PCA-200E and SBA-200E adapters |
| 8 | on i386, alpha (untested), powerpc, sparc and sparc64 architectures. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software |
| 22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/init.h> |
| 29 | #include <linux/capability.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/interrupt.h> |
| 31 | #include <linux/bitops.h> |
| 32 | #include <linux/pci.h> |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/atmdev.h> |
| 35 | #include <linux/sonet.h> |
| 36 | #include <linux/atm_suni.h> |
| 37 | #include <linux/dma-mapping.h> |
| 38 | #include <linux/delay.h> |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 39 | #include <linux/firmware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #include <asm/io.h> |
| 41 | #include <asm/string.h> |
| 42 | #include <asm/page.h> |
| 43 | #include <asm/irq.h> |
| 44 | #include <asm/dma.h> |
| 45 | #include <asm/byteorder.h> |
| 46 | #include <asm/uaccess.h> |
| 47 | #include <asm/atomic.h> |
| 48 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 49 | #ifdef CONFIG_SBUS |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 50 | #include <linux/of.h> |
| 51 | #include <linux/of_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <asm/idprom.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/openprom.h> |
| 54 | #include <asm/oplib.h> |
| 55 | #include <asm/pgtable.h> |
| 56 | #endif |
| 57 | |
| 58 | #if defined(CONFIG_ATM_FORE200E_USE_TASKLET) /* defer interrupt work to a tasklet */ |
| 59 | #define FORE200E_USE_TASKLET |
| 60 | #endif |
| 61 | |
| 62 | #if 0 /* enable the debugging code of the buffer supply queues */ |
| 63 | #define FORE200E_BSQ_DEBUG |
| 64 | #endif |
| 65 | |
| 66 | #if 1 /* ensure correct handling of 52-byte AAL0 SDUs expected by atmdump-like apps */ |
| 67 | #define FORE200E_52BYTE_AAL0_SDU |
| 68 | #endif |
| 69 | |
| 70 | #include "fore200e.h" |
| 71 | #include "suni.h" |
| 72 | |
| 73 | #define FORE200E_VERSION "0.3e" |
| 74 | |
| 75 | #define FORE200E "fore200e: " |
| 76 | |
| 77 | #if 0 /* override .config */ |
| 78 | #define CONFIG_ATM_FORE200E_DEBUG 1 |
| 79 | #endif |
| 80 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) |
| 81 | #define DPRINTK(level, format, args...) do { if (CONFIG_ATM_FORE200E_DEBUG >= (level)) \ |
| 82 | printk(FORE200E format, ##args); } while (0) |
| 83 | #else |
| 84 | #define DPRINTK(level, format, args...) do {} while (0) |
| 85 | #endif |
| 86 | |
| 87 | |
| 88 | #define FORE200E_ALIGN(addr, alignment) \ |
| 89 | ((((unsigned long)(addr) + (alignment - 1)) & ~(alignment - 1)) - (unsigned long)(addr)) |
| 90 | |
| 91 | #define FORE200E_DMA_INDEX(dma_addr, type, index) ((dma_addr) + (index) * sizeof(type)) |
| 92 | |
| 93 | #define FORE200E_INDEX(virt_addr, type, index) (&((type *)(virt_addr))[ index ]) |
| 94 | |
| 95 | #define FORE200E_NEXT_ENTRY(index, modulo) (index = ++(index) % (modulo)) |
| 96 | |
| 97 | #if 1 |
| 98 | #define ASSERT(expr) if (!(expr)) { \ |
| 99 | printk(FORE200E "assertion failed! %s[%d]: %s\n", \ |
Harvey Harrison | 5a346a1 | 2008-03-05 18:38:07 -0800 | [diff] [blame] | 100 | __func__, __LINE__, #expr); \ |
| 101 | panic(FORE200E "%s", __func__); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | } |
| 103 | #else |
| 104 | #define ASSERT(expr) do {} while (0) |
| 105 | #endif |
| 106 | |
| 107 | |
| 108 | static const struct atmdev_ops fore200e_ops; |
| 109 | static const struct fore200e_bus fore200e_bus[]; |
| 110 | |
| 111 | static LIST_HEAD(fore200e_boards); |
| 112 | |
| 113 | |
| 114 | MODULE_AUTHOR("Christophe Lizzi - credits to Uwe Dannowski and Heikki Vatiainen"); |
| 115 | MODULE_DESCRIPTION("FORE Systems 200E-series ATM driver - version " FORE200E_VERSION); |
| 116 | MODULE_SUPPORTED_DEVICE("PCA-200E, SBA-200E"); |
| 117 | |
| 118 | |
| 119 | static const int fore200e_rx_buf_nbr[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { |
| 120 | { BUFFER_S1_NBR, BUFFER_L1_NBR }, |
| 121 | { BUFFER_S2_NBR, BUFFER_L2_NBR } |
| 122 | }; |
| 123 | |
| 124 | static const int fore200e_rx_buf_size[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ] = { |
| 125 | { BUFFER_S1_SIZE, BUFFER_L1_SIZE }, |
| 126 | { BUFFER_S2_SIZE, BUFFER_L2_SIZE } |
| 127 | }; |
| 128 | |
| 129 | |
| 130 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG > 0) |
| 131 | static const char* fore200e_traffic_class[] = { "NONE", "UBR", "CBR", "VBR", "ABR", "ANY" }; |
| 132 | #endif |
| 133 | |
| 134 | |
| 135 | #if 0 /* currently unused */ |
| 136 | static int |
| 137 | fore200e_fore2atm_aal(enum fore200e_aal aal) |
| 138 | { |
| 139 | switch(aal) { |
| 140 | case FORE200E_AAL0: return ATM_AAL0; |
| 141 | case FORE200E_AAL34: return ATM_AAL34; |
| 142 | case FORE200E_AAL5: return ATM_AAL5; |
| 143 | } |
| 144 | |
| 145 | return -EINVAL; |
| 146 | } |
| 147 | #endif |
| 148 | |
| 149 | |
| 150 | static enum fore200e_aal |
| 151 | fore200e_atm2fore_aal(int aal) |
| 152 | { |
| 153 | switch(aal) { |
| 154 | case ATM_AAL0: return FORE200E_AAL0; |
| 155 | case ATM_AAL34: return FORE200E_AAL34; |
| 156 | case ATM_AAL1: |
| 157 | case ATM_AAL2: |
| 158 | case ATM_AAL5: return FORE200E_AAL5; |
| 159 | } |
| 160 | |
| 161 | return -EINVAL; |
| 162 | } |
| 163 | |
| 164 | |
| 165 | static char* |
| 166 | fore200e_irq_itoa(int irq) |
| 167 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | static char str[8]; |
| 169 | sprintf(str, "%d", irq); |
| 170 | return str; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | /* allocate and align a chunk of memory intended to hold the data behing exchanged |
| 175 | between the driver and the adapter (using streaming DVMA) */ |
| 176 | |
| 177 | static int |
| 178 | fore200e_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, int size, int alignment, int direction) |
| 179 | { |
| 180 | unsigned long offset = 0; |
| 181 | |
| 182 | if (alignment <= sizeof(int)) |
| 183 | alignment = 0; |
| 184 | |
| 185 | chunk->alloc_size = size + alignment; |
| 186 | chunk->align_size = size; |
| 187 | chunk->direction = direction; |
| 188 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 189 | chunk->alloc_addr = kzalloc(chunk->alloc_size, GFP_KERNEL | GFP_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | if (chunk->alloc_addr == NULL) |
| 191 | return -ENOMEM; |
| 192 | |
| 193 | if (alignment > 0) |
| 194 | offset = FORE200E_ALIGN(chunk->alloc_addr, alignment); |
| 195 | |
| 196 | chunk->align_addr = chunk->alloc_addr + offset; |
| 197 | |
| 198 | chunk->dma_addr = fore200e->bus->dma_map(fore200e, chunk->align_addr, chunk->align_size, direction); |
| 199 | |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | |
| 204 | /* free a chunk of memory */ |
| 205 | |
| 206 | static void |
| 207 | fore200e_chunk_free(struct fore200e* fore200e, struct chunk* chunk) |
| 208 | { |
| 209 | fore200e->bus->dma_unmap(fore200e, chunk->dma_addr, chunk->dma_size, chunk->direction); |
| 210 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 211 | kfree(chunk->alloc_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | |
| 215 | static void |
| 216 | fore200e_spin(int msecs) |
| 217 | { |
| 218 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); |
| 219 | while (time_before(jiffies, timeout)); |
| 220 | } |
| 221 | |
| 222 | |
| 223 | static int |
| 224 | fore200e_poll(struct fore200e* fore200e, volatile u32* addr, u32 val, int msecs) |
| 225 | { |
| 226 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); |
| 227 | int ok; |
| 228 | |
| 229 | mb(); |
| 230 | do { |
| 231 | if ((ok = (*addr == val)) || (*addr & STATUS_ERROR)) |
| 232 | break; |
| 233 | |
| 234 | } while (time_before(jiffies, timeout)); |
| 235 | |
| 236 | #if 1 |
| 237 | if (!ok) { |
| 238 | printk(FORE200E "cmd polling failed, got status 0x%08x, expected 0x%08x\n", |
| 239 | *addr, val); |
| 240 | } |
| 241 | #endif |
| 242 | |
| 243 | return ok; |
| 244 | } |
| 245 | |
| 246 | |
| 247 | static int |
| 248 | fore200e_io_poll(struct fore200e* fore200e, volatile u32 __iomem *addr, u32 val, int msecs) |
| 249 | { |
| 250 | unsigned long timeout = jiffies + msecs_to_jiffies(msecs); |
| 251 | int ok; |
| 252 | |
| 253 | do { |
| 254 | if ((ok = (fore200e->bus->read(addr) == val))) |
| 255 | break; |
| 256 | |
| 257 | } while (time_before(jiffies, timeout)); |
| 258 | |
| 259 | #if 1 |
| 260 | if (!ok) { |
| 261 | printk(FORE200E "I/O polling failed, got status 0x%08x, expected 0x%08x\n", |
| 262 | fore200e->bus->read(addr), val); |
| 263 | } |
| 264 | #endif |
| 265 | |
| 266 | return ok; |
| 267 | } |
| 268 | |
| 269 | |
| 270 | static void |
| 271 | fore200e_free_rx_buf(struct fore200e* fore200e) |
| 272 | { |
| 273 | int scheme, magn, nbr; |
| 274 | struct buffer* buffer; |
| 275 | |
| 276 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { |
| 277 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { |
| 278 | |
| 279 | if ((buffer = fore200e->host_bsq[ scheme ][ magn ].buffer) != NULL) { |
| 280 | |
| 281 | for (nbr = 0; nbr < fore200e_rx_buf_nbr[ scheme ][ magn ]; nbr++) { |
| 282 | |
| 283 | struct chunk* data = &buffer[ nbr ].data; |
| 284 | |
| 285 | if (data->alloc_addr != NULL) |
| 286 | fore200e_chunk_free(fore200e, data); |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | |
| 294 | static void |
| 295 | fore200e_uninit_bs_queue(struct fore200e* fore200e) |
| 296 | { |
| 297 | int scheme, magn; |
| 298 | |
| 299 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { |
| 300 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { |
| 301 | |
| 302 | struct chunk* status = &fore200e->host_bsq[ scheme ][ magn ].status; |
| 303 | struct chunk* rbd_block = &fore200e->host_bsq[ scheme ][ magn ].rbd_block; |
| 304 | |
| 305 | if (status->alloc_addr) |
| 306 | fore200e->bus->dma_chunk_free(fore200e, status); |
| 307 | |
| 308 | if (rbd_block->alloc_addr) |
| 309 | fore200e->bus->dma_chunk_free(fore200e, rbd_block); |
| 310 | } |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | |
| 315 | static int |
| 316 | fore200e_reset(struct fore200e* fore200e, int diag) |
| 317 | { |
| 318 | int ok; |
| 319 | |
| 320 | fore200e->cp_monitor = fore200e->virt_base + FORE200E_CP_MONITOR_OFFSET; |
| 321 | |
| 322 | fore200e->bus->write(BSTAT_COLD_START, &fore200e->cp_monitor->bstat); |
| 323 | |
| 324 | fore200e->bus->reset(fore200e); |
| 325 | |
| 326 | if (diag) { |
| 327 | ok = fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_SELFTEST_OK, 1000); |
| 328 | if (ok == 0) { |
| 329 | |
| 330 | printk(FORE200E "device %s self-test failed\n", fore200e->name); |
| 331 | return -ENODEV; |
| 332 | } |
| 333 | |
| 334 | printk(FORE200E "device %s self-test passed\n", fore200e->name); |
| 335 | |
| 336 | fore200e->state = FORE200E_STATE_RESET; |
| 337 | } |
| 338 | |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | static void |
| 344 | fore200e_shutdown(struct fore200e* fore200e) |
| 345 | { |
| 346 | printk(FORE200E "removing device %s at 0x%lx, IRQ %s\n", |
| 347 | fore200e->name, fore200e->phys_base, |
| 348 | fore200e_irq_itoa(fore200e->irq)); |
| 349 | |
| 350 | if (fore200e->state > FORE200E_STATE_RESET) { |
| 351 | /* first, reset the board to prevent further interrupts or data transfers */ |
| 352 | fore200e_reset(fore200e, 0); |
| 353 | } |
| 354 | |
| 355 | /* then, release all allocated resources */ |
| 356 | switch(fore200e->state) { |
| 357 | |
| 358 | case FORE200E_STATE_COMPLETE: |
Jesper Juhl | a2c1aa5 | 2005-06-02 13:04:07 -0700 | [diff] [blame] | 359 | kfree(fore200e->stats); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
| 361 | case FORE200E_STATE_IRQ: |
| 362 | free_irq(fore200e->irq, fore200e->atm_dev); |
| 363 | |
| 364 | case FORE200E_STATE_ALLOC_BUF: |
| 365 | fore200e_free_rx_buf(fore200e); |
| 366 | |
| 367 | case FORE200E_STATE_INIT_BSQ: |
| 368 | fore200e_uninit_bs_queue(fore200e); |
| 369 | |
| 370 | case FORE200E_STATE_INIT_RXQ: |
| 371 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.status); |
| 372 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_rxq.rpd); |
| 373 | |
| 374 | case FORE200E_STATE_INIT_TXQ: |
| 375 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.status); |
| 376 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_txq.tpd); |
| 377 | |
| 378 | case FORE200E_STATE_INIT_CMDQ: |
| 379 | fore200e->bus->dma_chunk_free(fore200e, &fore200e->host_cmdq.status); |
| 380 | |
| 381 | case FORE200E_STATE_INITIALIZE: |
| 382 | /* nothing to do for that state */ |
| 383 | |
| 384 | case FORE200E_STATE_START_FW: |
| 385 | /* nothing to do for that state */ |
| 386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | case FORE200E_STATE_RESET: |
| 388 | /* nothing to do for that state */ |
| 389 | |
| 390 | case FORE200E_STATE_MAP: |
| 391 | fore200e->bus->unmap(fore200e); |
| 392 | |
| 393 | case FORE200E_STATE_CONFIGURE: |
| 394 | /* nothing to do for that state */ |
| 395 | |
| 396 | case FORE200E_STATE_REGISTER: |
| 397 | /* XXX shouldn't we *start* by deregistering the device? */ |
| 398 | atm_dev_deregister(fore200e->atm_dev); |
| 399 | |
| 400 | case FORE200E_STATE_BLANK: |
| 401 | /* nothing to do for that state */ |
| 402 | break; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 407 | #ifdef CONFIG_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
| 409 | static u32 fore200e_pca_read(volatile u32 __iomem *addr) |
| 410 | { |
| 411 | /* on big-endian hosts, the board is configured to convert |
| 412 | the endianess of slave RAM accesses */ |
| 413 | return le32_to_cpu(readl(addr)); |
| 414 | } |
| 415 | |
| 416 | |
| 417 | static void fore200e_pca_write(u32 val, volatile u32 __iomem *addr) |
| 418 | { |
| 419 | /* on big-endian hosts, the board is configured to convert |
| 420 | the endianess of slave RAM accesses */ |
| 421 | writel(cpu_to_le32(val), addr); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | static u32 |
| 426 | fore200e_pca_dma_map(struct fore200e* fore200e, void* virt_addr, int size, int direction) |
| 427 | { |
| 428 | u32 dma_addr = pci_map_single((struct pci_dev*)fore200e->bus_dev, virt_addr, size, direction); |
| 429 | |
| 430 | DPRINTK(3, "PCI DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d, --> dma_addr = 0x%08x\n", |
| 431 | virt_addr, size, direction, dma_addr); |
| 432 | |
| 433 | return dma_addr; |
| 434 | } |
| 435 | |
| 436 | |
| 437 | static void |
| 438 | fore200e_pca_dma_unmap(struct fore200e* fore200e, u32 dma_addr, int size, int direction) |
| 439 | { |
| 440 | DPRINTK(3, "PCI DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d\n", |
| 441 | dma_addr, size, direction); |
| 442 | |
| 443 | pci_unmap_single((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); |
| 444 | } |
| 445 | |
| 446 | |
| 447 | static void |
| 448 | fore200e_pca_dma_sync_for_cpu(struct fore200e* fore200e, u32 dma_addr, int size, int direction) |
| 449 | { |
| 450 | DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); |
| 451 | |
| 452 | pci_dma_sync_single_for_cpu((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); |
| 453 | } |
| 454 | |
| 455 | static void |
| 456 | fore200e_pca_dma_sync_for_device(struct fore200e* fore200e, u32 dma_addr, int size, int direction) |
| 457 | { |
| 458 | DPRINTK(3, "PCI DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); |
| 459 | |
| 460 | pci_dma_sync_single_for_device((struct pci_dev*)fore200e->bus_dev, dma_addr, size, direction); |
| 461 | } |
| 462 | |
| 463 | |
| 464 | /* allocate a DMA consistent chunk of memory intended to act as a communication mechanism |
| 465 | (to hold descriptors, status, queues, etc.) shared by the driver and the adapter */ |
| 466 | |
| 467 | static int |
| 468 | fore200e_pca_dma_chunk_alloc(struct fore200e* fore200e, struct chunk* chunk, |
| 469 | int size, int nbr, int alignment) |
| 470 | { |
| 471 | /* returned chunks are page-aligned */ |
| 472 | chunk->alloc_size = size * nbr; |
| 473 | chunk->alloc_addr = pci_alloc_consistent((struct pci_dev*)fore200e->bus_dev, |
| 474 | chunk->alloc_size, |
| 475 | &chunk->dma_addr); |
| 476 | |
| 477 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) |
| 478 | return -ENOMEM; |
| 479 | |
| 480 | chunk->align_addr = chunk->alloc_addr; |
| 481 | |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | |
| 486 | /* free a DMA consistent chunk of memory */ |
| 487 | |
| 488 | static void |
| 489 | fore200e_pca_dma_chunk_free(struct fore200e* fore200e, struct chunk* chunk) |
| 490 | { |
| 491 | pci_free_consistent((struct pci_dev*)fore200e->bus_dev, |
| 492 | chunk->alloc_size, |
| 493 | chunk->alloc_addr, |
| 494 | chunk->dma_addr); |
| 495 | } |
| 496 | |
| 497 | |
| 498 | static int |
| 499 | fore200e_pca_irq_check(struct fore200e* fore200e) |
| 500 | { |
| 501 | /* this is a 1 bit register */ |
| 502 | int irq_posted = readl(fore200e->regs.pca.psr); |
| 503 | |
| 504 | #if defined(CONFIG_ATM_FORE200E_DEBUG) && (CONFIG_ATM_FORE200E_DEBUG == 2) |
| 505 | if (irq_posted && (readl(fore200e->regs.pca.hcr) & PCA200E_HCR_OUTFULL)) { |
| 506 | DPRINTK(2,"FIFO OUT full, device %d\n", fore200e->atm_dev->number); |
| 507 | } |
| 508 | #endif |
| 509 | |
| 510 | return irq_posted; |
| 511 | } |
| 512 | |
| 513 | |
| 514 | static void |
| 515 | fore200e_pca_irq_ack(struct fore200e* fore200e) |
| 516 | { |
| 517 | writel(PCA200E_HCR_CLRINTR, fore200e->regs.pca.hcr); |
| 518 | } |
| 519 | |
| 520 | |
| 521 | static void |
| 522 | fore200e_pca_reset(struct fore200e* fore200e) |
| 523 | { |
| 524 | writel(PCA200E_HCR_RESET, fore200e->regs.pca.hcr); |
| 525 | fore200e_spin(10); |
| 526 | writel(0, fore200e->regs.pca.hcr); |
| 527 | } |
| 528 | |
| 529 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 530 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | fore200e_pca_map(struct fore200e* fore200e) |
| 532 | { |
| 533 | DPRINTK(2, "device %s being mapped in memory\n", fore200e->name); |
| 534 | |
| 535 | fore200e->virt_base = ioremap(fore200e->phys_base, PCA200E_IOSPACE_LENGTH); |
| 536 | |
| 537 | if (fore200e->virt_base == NULL) { |
| 538 | printk(FORE200E "can't map device %s\n", fore200e->name); |
| 539 | return -EFAULT; |
| 540 | } |
| 541 | |
| 542 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); |
| 543 | |
| 544 | /* gain access to the PCA specific registers */ |
| 545 | fore200e->regs.pca.hcr = fore200e->virt_base + PCA200E_HCR_OFFSET; |
| 546 | fore200e->regs.pca.imr = fore200e->virt_base + PCA200E_IMR_OFFSET; |
| 547 | fore200e->regs.pca.psr = fore200e->virt_base + PCA200E_PSR_OFFSET; |
| 548 | |
| 549 | fore200e->state = FORE200E_STATE_MAP; |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | |
| 554 | static void |
| 555 | fore200e_pca_unmap(struct fore200e* fore200e) |
| 556 | { |
| 557 | DPRINTK(2, "device %s being unmapped from memory\n", fore200e->name); |
| 558 | |
| 559 | if (fore200e->virt_base != NULL) |
| 560 | iounmap(fore200e->virt_base); |
| 561 | } |
| 562 | |
| 563 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 564 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | fore200e_pca_configure(struct fore200e* fore200e) |
| 566 | { |
| 567 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; |
| 568 | u8 master_ctrl, latency; |
| 569 | |
| 570 | DPRINTK(2, "device %s being configured\n", fore200e->name); |
| 571 | |
| 572 | if ((pci_dev->irq == 0) || (pci_dev->irq == 0xFF)) { |
| 573 | printk(FORE200E "incorrect IRQ setting - misconfigured PCI-PCI bridge?\n"); |
| 574 | return -EIO; |
| 575 | } |
| 576 | |
| 577 | pci_read_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, &master_ctrl); |
| 578 | |
| 579 | master_ctrl = master_ctrl |
| 580 | #if defined(__BIG_ENDIAN) |
| 581 | /* request the PCA board to convert the endianess of slave RAM accesses */ |
| 582 | | PCA200E_CTRL_CONVERT_ENDIAN |
| 583 | #endif |
| 584 | #if 0 |
| 585 | | PCA200E_CTRL_DIS_CACHE_RD |
| 586 | | PCA200E_CTRL_DIS_WRT_INVAL |
| 587 | | PCA200E_CTRL_ENA_CONT_REQ_MODE |
| 588 | | PCA200E_CTRL_2_CACHE_WRT_INVAL |
| 589 | #endif |
| 590 | | PCA200E_CTRL_LARGE_PCI_BURSTS; |
| 591 | |
| 592 | pci_write_config_byte(pci_dev, PCA200E_PCI_MASTER_CTRL, master_ctrl); |
| 593 | |
| 594 | /* raise latency from 32 (default) to 192, as this seems to prevent NIC |
| 595 | lockups (under heavy rx loads) due to continuous 'FIFO OUT full' condition. |
| 596 | this may impact the performances of other PCI devices on the same bus, though */ |
| 597 | latency = 192; |
| 598 | pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency); |
| 599 | |
| 600 | fore200e->state = FORE200E_STATE_CONFIGURE; |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | |
| 605 | static int __init |
| 606 | fore200e_pca_prom_read(struct fore200e* fore200e, struct prom_data* prom) |
| 607 | { |
| 608 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 609 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; |
| 610 | struct prom_opcode opcode; |
| 611 | int ok; |
| 612 | u32 prom_dma; |
| 613 | |
| 614 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); |
| 615 | |
| 616 | opcode.opcode = OPCODE_GET_PROM; |
| 617 | opcode.pad = 0; |
| 618 | |
| 619 | prom_dma = fore200e->bus->dma_map(fore200e, prom, sizeof(struct prom_data), DMA_FROM_DEVICE); |
| 620 | |
| 621 | fore200e->bus->write(prom_dma, &entry->cp_entry->cmd.prom_block.prom_haddr); |
| 622 | |
| 623 | *entry->status = STATUS_PENDING; |
| 624 | |
| 625 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.prom_block.opcode); |
| 626 | |
| 627 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); |
| 628 | |
| 629 | *entry->status = STATUS_FREE; |
| 630 | |
| 631 | fore200e->bus->dma_unmap(fore200e, prom_dma, sizeof(struct prom_data), DMA_FROM_DEVICE); |
| 632 | |
| 633 | if (ok == 0) { |
| 634 | printk(FORE200E "unable to get PROM data from device %s\n", fore200e->name); |
| 635 | return -EIO; |
| 636 | } |
| 637 | |
| 638 | #if defined(__BIG_ENDIAN) |
| 639 | |
| 640 | #define swap_here(addr) (*((u32*)(addr)) = swab32( *((u32*)(addr)) )) |
| 641 | |
| 642 | /* MAC address is stored as little-endian */ |
| 643 | swap_here(&prom->mac_addr[0]); |
| 644 | swap_here(&prom->mac_addr[4]); |
| 645 | #endif |
| 646 | |
| 647 | return 0; |
| 648 | } |
| 649 | |
| 650 | |
| 651 | static int |
| 652 | fore200e_pca_proc_read(struct fore200e* fore200e, char *page) |
| 653 | { |
| 654 | struct pci_dev* pci_dev = (struct pci_dev*)fore200e->bus_dev; |
| 655 | |
| 656 | return sprintf(page, " PCI bus/slot/function:\t%d/%d/%d\n", |
| 657 | pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); |
| 658 | } |
| 659 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 660 | #endif /* CONFIG_PCI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | |
| 662 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 663 | #ifdef CONFIG_SBUS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 665 | static u32 fore200e_sba_read(volatile u32 __iomem *addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | { |
| 667 | return sbus_readl(addr); |
| 668 | } |
| 669 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 670 | static void fore200e_sba_write(u32 val, volatile u32 __iomem *addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | { |
| 672 | sbus_writel(val, addr); |
| 673 | } |
| 674 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 675 | static u32 fore200e_sba_dma_map(struct fore200e *fore200e, void* virt_addr, int size, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 677 | struct of_device *op = fore200e->bus_dev; |
| 678 | u32 dma_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 680 | dma_addr = dma_map_single(&op->dev, virt_addr, size, direction); |
| 681 | |
| 682 | DPRINTK(3, "SBUS DVMA mapping: virt_addr = 0x%p, size = %d, direction = %d --> dma_addr = 0x%08x\n", |
| 683 | virt_addr, size, direction, dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 685 | return dma_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | } |
| 687 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 688 | static void fore200e_sba_dma_unmap(struct fore200e *fore200e, u32 dma_addr, int size, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 690 | struct of_device *op = fore200e->bus_dev; |
David S. Miller | 7a715f4 | 2008-08-27 18:37:58 -0700 | [diff] [blame] | 691 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 692 | DPRINTK(3, "SBUS DVMA unmapping: dma_addr = 0x%08x, size = %d, direction = %d,\n", |
| 693 | dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 695 | dma_unmap_single(&op->dev, dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | } |
| 697 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 698 | static void fore200e_sba_dma_sync_for_cpu(struct fore200e *fore200e, u32 dma_addr, int size, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 700 | struct of_device *op = fore200e->bus_dev; |
David S. Miller | 7a715f4 | 2008-08-27 18:37:58 -0700 | [diff] [blame] | 701 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 702 | DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 704 | dma_sync_single_for_cpu(&op->dev, dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | } |
| 706 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 707 | static void fore200e_sba_dma_sync_for_device(struct fore200e *fore200e, u32 dma_addr, int size, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 709 | struct of_device *op = fore200e->bus_dev; |
David S. Miller | 7a715f4 | 2008-08-27 18:37:58 -0700 | [diff] [blame] | 710 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 711 | DPRINTK(3, "SBUS DVMA sync: dma_addr = 0x%08x, size = %d, direction = %d\n", dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 713 | dma_sync_single_for_device(&op->dev, dma_addr, size, direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | } |
| 715 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 716 | /* Allocate a DVMA consistent chunk of memory intended to act as a communication mechanism |
| 717 | * (to hold descriptors, status, queues, etc.) shared by the driver and the adapter. |
| 718 | */ |
| 719 | static int fore200e_sba_dma_chunk_alloc(struct fore200e *fore200e, struct chunk *chunk, |
| 720 | int size, int nbr, int alignment) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 722 | struct of_device *op = fore200e->bus_dev; |
David S. Miller | 7a715f4 | 2008-08-27 18:37:58 -0700 | [diff] [blame] | 723 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 724 | chunk->alloc_size = chunk->align_size = size * nbr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 726 | /* returned chunks are page-aligned */ |
| 727 | chunk->alloc_addr = dma_alloc_coherent(&op->dev, chunk->alloc_size, |
| 728 | &chunk->dma_addr, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 730 | if ((chunk->alloc_addr == NULL) || (chunk->dma_addr == 0)) |
| 731 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 733 | chunk->align_addr = chunk->alloc_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 735 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | } |
| 737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | /* free a DVMA consistent chunk of memory */ |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 739 | static void fore200e_sba_dma_chunk_free(struct fore200e *fore200e, struct chunk *chunk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 741 | struct of_device *op = fore200e->bus_dev; |
David S. Miller | 7a715f4 | 2008-08-27 18:37:58 -0700 | [diff] [blame] | 742 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 743 | dma_free_coherent(&op->dev, chunk->alloc_size, |
| 744 | chunk->alloc_addr, chunk->dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | } |
| 746 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 747 | static void fore200e_sba_irq_enable(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 749 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; |
| 750 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_ENA, fore200e->regs.sba.hcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | } |
| 752 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 753 | static int fore200e_sba_irq_check(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 755 | return fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_INTR_REQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | } |
| 757 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 758 | static void fore200e_sba_irq_ack(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 760 | u32 hcr = fore200e->bus->read(fore200e->regs.sba.hcr) & SBA200E_HCR_STICKY; |
| 761 | fore200e->bus->write(hcr | SBA200E_HCR_INTR_CLR, fore200e->regs.sba.hcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | } |
| 763 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 764 | static void fore200e_sba_reset(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 766 | fore200e->bus->write(SBA200E_HCR_RESET, fore200e->regs.sba.hcr); |
| 767 | fore200e_spin(10); |
| 768 | fore200e->bus->write(0, fore200e->regs.sba.hcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | } |
| 770 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 771 | static int __init fore200e_sba_map(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 773 | struct of_device *op = fore200e->bus_dev; |
| 774 | unsigned int bursts; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 776 | /* gain access to the SBA specific registers */ |
| 777 | fore200e->regs.sba.hcr = of_ioremap(&op->resource[0], 0, SBA200E_HCR_LENGTH, "SBA HCR"); |
| 778 | fore200e->regs.sba.bsr = of_ioremap(&op->resource[1], 0, SBA200E_BSR_LENGTH, "SBA BSR"); |
| 779 | fore200e->regs.sba.isr = of_ioremap(&op->resource[2], 0, SBA200E_ISR_LENGTH, "SBA ISR"); |
| 780 | fore200e->virt_base = of_ioremap(&op->resource[3], 0, SBA200E_RAM_LENGTH, "SBA RAM"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 782 | if (!fore200e->virt_base) { |
| 783 | printk(FORE200E "unable to map RAM of device %s\n", fore200e->name); |
| 784 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | } |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 786 | |
| 787 | DPRINTK(1, "device %s mapped to 0x%p\n", fore200e->name, fore200e->virt_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 789 | fore200e->bus->write(0x02, fore200e->regs.sba.isr); /* XXX hardwired interrupt level */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 791 | /* get the supported DVMA burst sizes */ |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 792 | bursts = of_getintprop_default(op->dev.of_node->parent, "burst-sizes", 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 794 | if (sbus_can_dma_64bit()) |
| 795 | sbus_set_sbus64(&op->dev, bursts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 797 | fore200e->state = FORE200E_STATE_MAP; |
| 798 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | } |
| 800 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 801 | static void fore200e_sba_unmap(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 803 | struct of_device *op = fore200e->bus_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 805 | of_iounmap(&op->resource[0], fore200e->regs.sba.hcr, SBA200E_HCR_LENGTH); |
| 806 | of_iounmap(&op->resource[1], fore200e->regs.sba.bsr, SBA200E_BSR_LENGTH); |
| 807 | of_iounmap(&op->resource[2], fore200e->regs.sba.isr, SBA200E_ISR_LENGTH); |
| 808 | of_iounmap(&op->resource[3], fore200e->virt_base, SBA200E_RAM_LENGTH); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | } |
| 810 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 811 | static int __init fore200e_sba_configure(struct fore200e *fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 813 | fore200e->state = FORE200E_STATE_CONFIGURE; |
| 814 | return 0; |
| 815 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 817 | static int __init fore200e_sba_prom_read(struct fore200e *fore200e, struct prom_data *prom) |
| 818 | { |
| 819 | struct of_device *op = fore200e->bus_dev; |
| 820 | const u8 *prop; |
| 821 | int len; |
| 822 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 823 | prop = of_get_property(op->dev.of_node, "madaddrlo2", &len); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 824 | if (!prop) |
| 825 | return -ENODEV; |
| 826 | memcpy(&prom->mac_addr[4], prop, 4); |
| 827 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 828 | prop = of_get_property(op->dev.of_node, "madaddrhi4", &len); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 829 | if (!prop) |
| 830 | return -ENODEV; |
| 831 | memcpy(&prom->mac_addr[2], prop, 4); |
| 832 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 833 | prom->serial_number = of_getintprop_default(op->dev.of_node, |
| 834 | "serialnumber", 0); |
| 835 | prom->hw_revision = of_getintprop_default(op->dev.of_node, |
| 836 | "promversion", 0); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 837 | |
| 838 | return 0; |
| 839 | } |
| 840 | |
| 841 | static int fore200e_sba_proc_read(struct fore200e *fore200e, char *page) |
| 842 | { |
| 843 | struct of_device *op = fore200e->bus_dev; |
| 844 | const struct linux_prom_registers *regs; |
| 845 | |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 846 | regs = of_get_property(op->dev.of_node, "reg", NULL); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 847 | |
| 848 | return sprintf(page, " SBUS slot/device:\t\t%d/'%s'\n", |
Grant Likely | 61c7a08 | 2010-04-13 16:12:29 -0700 | [diff] [blame] | 849 | (regs ? regs->which_io : 0), op->dev.of_node->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | } |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 851 | #endif /* CONFIG_SBUS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | |
| 853 | |
| 854 | static void |
| 855 | fore200e_tx_irq(struct fore200e* fore200e) |
| 856 | { |
| 857 | struct host_txq* txq = &fore200e->host_txq; |
| 858 | struct host_txq_entry* entry; |
| 859 | struct atm_vcc* vcc; |
| 860 | struct fore200e_vc_map* vc_map; |
| 861 | |
| 862 | if (fore200e->host_txq.txing == 0) |
| 863 | return; |
| 864 | |
| 865 | for (;;) { |
| 866 | |
| 867 | entry = &txq->host_entry[ txq->tail ]; |
| 868 | |
| 869 | if ((*entry->status & STATUS_COMPLETE) == 0) { |
| 870 | break; |
| 871 | } |
| 872 | |
| 873 | DPRINTK(3, "TX COMPLETED: entry = %p [tail = %d], vc_map = %p, skb = %p\n", |
| 874 | entry, txq->tail, entry->vc_map, entry->skb); |
| 875 | |
| 876 | /* free copy of misaligned data */ |
Jesper Juhl | a2c1aa5 | 2005-06-02 13:04:07 -0700 | [diff] [blame] | 877 | kfree(entry->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | |
| 879 | /* remove DMA mapping */ |
| 880 | fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length, |
| 881 | DMA_TO_DEVICE); |
| 882 | |
| 883 | vc_map = entry->vc_map; |
| 884 | |
| 885 | /* vcc closed since the time the entry was submitted for tx? */ |
| 886 | if ((vc_map->vcc == NULL) || |
| 887 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { |
| 888 | |
| 889 | DPRINTK(1, "no ready vcc found for PDU sent on device %d\n", |
| 890 | fore200e->atm_dev->number); |
| 891 | |
| 892 | dev_kfree_skb_any(entry->skb); |
| 893 | } |
| 894 | else { |
| 895 | ASSERT(vc_map->vcc); |
| 896 | |
| 897 | /* vcc closed then immediately re-opened? */ |
| 898 | if (vc_map->incarn != entry->incarn) { |
| 899 | |
| 900 | /* when a vcc is closed, some PDUs may be still pending in the tx queue. |
| 901 | if the same vcc is immediately re-opened, those pending PDUs must |
| 902 | not be popped after the completion of their emission, as they refer |
| 903 | to the prior incarnation of that vcc. otherwise, sk_atm(vcc)->sk_wmem_alloc |
| 904 | would be decremented by the size of the (unrelated) skb, possibly |
| 905 | leading to a negative sk->sk_wmem_alloc count, ultimately freezing the vcc. |
| 906 | we thus bind the tx entry to the current incarnation of the vcc |
| 907 | when the entry is submitted for tx. When the tx later completes, |
| 908 | if the incarnation number of the tx entry does not match the one |
| 909 | of the vcc, then this implies that the vcc has been closed then re-opened. |
| 910 | we thus just drop the skb here. */ |
| 911 | |
| 912 | DPRINTK(1, "vcc closed-then-re-opened; dropping PDU sent on device %d\n", |
| 913 | fore200e->atm_dev->number); |
| 914 | |
| 915 | dev_kfree_skb_any(entry->skb); |
| 916 | } |
| 917 | else { |
| 918 | vcc = vc_map->vcc; |
| 919 | ASSERT(vcc); |
| 920 | |
| 921 | /* notify tx completion */ |
| 922 | if (vcc->pop) { |
| 923 | vcc->pop(vcc, entry->skb); |
| 924 | } |
| 925 | else { |
| 926 | dev_kfree_skb_any(entry->skb); |
| 927 | } |
| 928 | #if 1 |
| 929 | /* race fixed by the above incarnation mechanism, but... */ |
| 930 | if (atomic_read(&sk_atm(vcc)->sk_wmem_alloc) < 0) { |
| 931 | atomic_set(&sk_atm(vcc)->sk_wmem_alloc, 0); |
| 932 | } |
| 933 | #endif |
| 934 | /* check error condition */ |
| 935 | if (*entry->status & STATUS_ERROR) |
| 936 | atomic_inc(&vcc->stats->tx_err); |
| 937 | else |
| 938 | atomic_inc(&vcc->stats->tx); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | *entry->status = STATUS_FREE; |
| 943 | |
| 944 | fore200e->host_txq.txing--; |
| 945 | |
| 946 | FORE200E_NEXT_ENTRY(txq->tail, QUEUE_SIZE_TX); |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | |
| 951 | #ifdef FORE200E_BSQ_DEBUG |
| 952 | int bsq_audit(int where, struct host_bsq* bsq, int scheme, int magn) |
| 953 | { |
| 954 | struct buffer* buffer; |
| 955 | int count = 0; |
| 956 | |
| 957 | buffer = bsq->freebuf; |
| 958 | while (buffer) { |
| 959 | |
| 960 | if (buffer->supplied) { |
| 961 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld supplied but in free list!\n", |
| 962 | where, scheme, magn, buffer->index); |
| 963 | } |
| 964 | |
| 965 | if (buffer->magn != magn) { |
| 966 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected magn = %d\n", |
| 967 | where, scheme, magn, buffer->index, buffer->magn); |
| 968 | } |
| 969 | |
| 970 | if (buffer->scheme != scheme) { |
| 971 | printk(FORE200E "bsq_audit(%d): queue %d.%d, buffer %ld, unexpected scheme = %d\n", |
| 972 | where, scheme, magn, buffer->index, buffer->scheme); |
| 973 | } |
| 974 | |
| 975 | if ((buffer->index < 0) || (buffer->index >= fore200e_rx_buf_nbr[ scheme ][ magn ])) { |
| 976 | printk(FORE200E "bsq_audit(%d): queue %d.%d, out of range buffer index = %ld !\n", |
| 977 | where, scheme, magn, buffer->index); |
| 978 | } |
| 979 | |
| 980 | count++; |
| 981 | buffer = buffer->next; |
| 982 | } |
| 983 | |
| 984 | if (count != bsq->freebuf_count) { |
| 985 | printk(FORE200E "bsq_audit(%d): queue %d.%d, %d bufs in free list, but freebuf_count = %d\n", |
| 986 | where, scheme, magn, count, bsq->freebuf_count); |
| 987 | } |
| 988 | return 0; |
| 989 | } |
| 990 | #endif |
| 991 | |
| 992 | |
| 993 | static void |
| 994 | fore200e_supply(struct fore200e* fore200e) |
| 995 | { |
| 996 | int scheme, magn, i; |
| 997 | |
| 998 | struct host_bsq* bsq; |
| 999 | struct host_bsq_entry* entry; |
| 1000 | struct buffer* buffer; |
| 1001 | |
| 1002 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { |
| 1003 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { |
| 1004 | |
| 1005 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; |
| 1006 | |
| 1007 | #ifdef FORE200E_BSQ_DEBUG |
| 1008 | bsq_audit(1, bsq, scheme, magn); |
| 1009 | #endif |
| 1010 | while (bsq->freebuf_count >= RBD_BLK_SIZE) { |
| 1011 | |
| 1012 | DPRINTK(2, "supplying %d rx buffers to queue %d / %d, freebuf_count = %d\n", |
| 1013 | RBD_BLK_SIZE, scheme, magn, bsq->freebuf_count); |
| 1014 | |
| 1015 | entry = &bsq->host_entry[ bsq->head ]; |
| 1016 | |
| 1017 | for (i = 0; i < RBD_BLK_SIZE; i++) { |
| 1018 | |
| 1019 | /* take the first buffer in the free buffer list */ |
| 1020 | buffer = bsq->freebuf; |
| 1021 | if (!buffer) { |
| 1022 | printk(FORE200E "no more free bufs in queue %d.%d, but freebuf_count = %d\n", |
| 1023 | scheme, magn, bsq->freebuf_count); |
| 1024 | return; |
| 1025 | } |
| 1026 | bsq->freebuf = buffer->next; |
| 1027 | |
| 1028 | #ifdef FORE200E_BSQ_DEBUG |
| 1029 | if (buffer->supplied) |
| 1030 | printk(FORE200E "queue %d.%d, buffer %lu already supplied\n", |
| 1031 | scheme, magn, buffer->index); |
| 1032 | buffer->supplied = 1; |
| 1033 | #endif |
| 1034 | entry->rbd_block->rbd[ i ].buffer_haddr = buffer->data.dma_addr; |
| 1035 | entry->rbd_block->rbd[ i ].handle = FORE200E_BUF2HDL(buffer); |
| 1036 | } |
| 1037 | |
| 1038 | FORE200E_NEXT_ENTRY(bsq->head, QUEUE_SIZE_BS); |
| 1039 | |
| 1040 | /* decrease accordingly the number of free rx buffers */ |
| 1041 | bsq->freebuf_count -= RBD_BLK_SIZE; |
| 1042 | |
| 1043 | *entry->status = STATUS_PENDING; |
| 1044 | fore200e->bus->write(entry->rbd_block_dma, &entry->cp_entry->rbd_block_haddr); |
| 1045 | } |
| 1046 | } |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | |
| 1051 | static int |
| 1052 | fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rpd) |
| 1053 | { |
| 1054 | struct sk_buff* skb; |
| 1055 | struct buffer* buffer; |
| 1056 | struct fore200e_vcc* fore200e_vcc; |
| 1057 | int i, pdu_len = 0; |
| 1058 | #ifdef FORE200E_52BYTE_AAL0_SDU |
| 1059 | u32 cell_header = 0; |
| 1060 | #endif |
| 1061 | |
| 1062 | ASSERT(vcc); |
| 1063 | |
| 1064 | fore200e_vcc = FORE200E_VCC(vcc); |
| 1065 | ASSERT(fore200e_vcc); |
| 1066 | |
| 1067 | #ifdef FORE200E_52BYTE_AAL0_SDU |
| 1068 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.rxtp.max_sdu == ATM_AAL0_SDU)) { |
| 1069 | |
| 1070 | cell_header = (rpd->atm_header.gfc << ATM_HDR_GFC_SHIFT) | |
| 1071 | (rpd->atm_header.vpi << ATM_HDR_VPI_SHIFT) | |
| 1072 | (rpd->atm_header.vci << ATM_HDR_VCI_SHIFT) | |
| 1073 | (rpd->atm_header.plt << ATM_HDR_PTI_SHIFT) | |
| 1074 | rpd->atm_header.clp; |
| 1075 | pdu_len = 4; |
| 1076 | } |
| 1077 | #endif |
| 1078 | |
| 1079 | /* compute total PDU length */ |
| 1080 | for (i = 0; i < rpd->nseg; i++) |
| 1081 | pdu_len += rpd->rsd[ i ].length; |
| 1082 | |
| 1083 | skb = alloc_skb(pdu_len, GFP_ATOMIC); |
| 1084 | if (skb == NULL) { |
| 1085 | DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); |
| 1086 | |
| 1087 | atomic_inc(&vcc->stats->rx_drop); |
| 1088 | return -ENOMEM; |
| 1089 | } |
| 1090 | |
Patrick McHardy | a61bbcf | 2005-08-14 17:24:31 -0700 | [diff] [blame] | 1091 | __net_timestamp(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | |
| 1093 | #ifdef FORE200E_52BYTE_AAL0_SDU |
| 1094 | if (cell_header) { |
| 1095 | *((u32*)skb_put(skb, 4)) = cell_header; |
| 1096 | } |
| 1097 | #endif |
| 1098 | |
| 1099 | /* reassemble segments */ |
| 1100 | for (i = 0; i < rpd->nseg; i++) { |
| 1101 | |
| 1102 | /* rebuild rx buffer address from rsd handle */ |
| 1103 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); |
| 1104 | |
| 1105 | /* Make device DMA transfer visible to CPU. */ |
| 1106 | fore200e->bus->dma_sync_for_cpu(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); |
| 1107 | |
| 1108 | memcpy(skb_put(skb, rpd->rsd[ i ].length), buffer->data.align_addr, rpd->rsd[ i ].length); |
| 1109 | |
| 1110 | /* Now let the device get at it again. */ |
| 1111 | fore200e->bus->dma_sync_for_device(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE); |
| 1112 | } |
| 1113 | |
| 1114 | DPRINTK(3, "rx skb: len = %d, truesize = %d\n", skb->len, skb->truesize); |
| 1115 | |
| 1116 | if (pdu_len < fore200e_vcc->rx_min_pdu) |
| 1117 | fore200e_vcc->rx_min_pdu = pdu_len; |
| 1118 | if (pdu_len > fore200e_vcc->rx_max_pdu) |
| 1119 | fore200e_vcc->rx_max_pdu = pdu_len; |
| 1120 | fore200e_vcc->rx_pdu++; |
| 1121 | |
| 1122 | /* push PDU */ |
| 1123 | if (atm_charge(vcc, skb->truesize) == 0) { |
| 1124 | |
| 1125 | DPRINTK(2, "receive buffers saturated for %d.%d.%d - PDU dropped\n", |
| 1126 | vcc->itf, vcc->vpi, vcc->vci); |
| 1127 | |
| 1128 | dev_kfree_skb_any(skb); |
| 1129 | |
| 1130 | atomic_inc(&vcc->stats->rx_drop); |
| 1131 | return -ENOMEM; |
| 1132 | } |
| 1133 | |
| 1134 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); |
| 1135 | |
| 1136 | vcc->push(vcc, skb); |
| 1137 | atomic_inc(&vcc->stats->rx); |
| 1138 | |
| 1139 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); |
| 1140 | |
| 1141 | return 0; |
| 1142 | } |
| 1143 | |
| 1144 | |
| 1145 | static void |
| 1146 | fore200e_collect_rpd(struct fore200e* fore200e, struct rpd* rpd) |
| 1147 | { |
| 1148 | struct host_bsq* bsq; |
| 1149 | struct buffer* buffer; |
| 1150 | int i; |
| 1151 | |
| 1152 | for (i = 0; i < rpd->nseg; i++) { |
| 1153 | |
| 1154 | /* rebuild rx buffer address from rsd handle */ |
| 1155 | buffer = FORE200E_HDL2BUF(rpd->rsd[ i ].handle); |
| 1156 | |
| 1157 | bsq = &fore200e->host_bsq[ buffer->scheme ][ buffer->magn ]; |
| 1158 | |
| 1159 | #ifdef FORE200E_BSQ_DEBUG |
| 1160 | bsq_audit(2, bsq, buffer->scheme, buffer->magn); |
| 1161 | |
| 1162 | if (buffer->supplied == 0) |
| 1163 | printk(FORE200E "queue %d.%d, buffer %ld was not supplied\n", |
| 1164 | buffer->scheme, buffer->magn, buffer->index); |
| 1165 | buffer->supplied = 0; |
| 1166 | #endif |
| 1167 | |
| 1168 | /* re-insert the buffer into the free buffer list */ |
| 1169 | buffer->next = bsq->freebuf; |
| 1170 | bsq->freebuf = buffer; |
| 1171 | |
| 1172 | /* then increment the number of free rx buffers */ |
| 1173 | bsq->freebuf_count++; |
| 1174 | } |
| 1175 | } |
| 1176 | |
| 1177 | |
| 1178 | static void |
| 1179 | fore200e_rx_irq(struct fore200e* fore200e) |
| 1180 | { |
| 1181 | struct host_rxq* rxq = &fore200e->host_rxq; |
| 1182 | struct host_rxq_entry* entry; |
| 1183 | struct atm_vcc* vcc; |
| 1184 | struct fore200e_vc_map* vc_map; |
| 1185 | |
| 1186 | for (;;) { |
| 1187 | |
| 1188 | entry = &rxq->host_entry[ rxq->head ]; |
| 1189 | |
| 1190 | /* no more received PDUs */ |
| 1191 | if ((*entry->status & STATUS_COMPLETE) == 0) |
| 1192 | break; |
| 1193 | |
| 1194 | vc_map = FORE200E_VC_MAP(fore200e, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); |
| 1195 | |
| 1196 | if ((vc_map->vcc == NULL) || |
| 1197 | (test_bit(ATM_VF_READY, &vc_map->vcc->flags) == 0)) { |
| 1198 | |
| 1199 | DPRINTK(1, "no ready VC found for PDU received on %d.%d.%d\n", |
| 1200 | fore200e->atm_dev->number, |
| 1201 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); |
| 1202 | } |
| 1203 | else { |
| 1204 | vcc = vc_map->vcc; |
| 1205 | ASSERT(vcc); |
| 1206 | |
| 1207 | if ((*entry->status & STATUS_ERROR) == 0) { |
| 1208 | |
| 1209 | fore200e_push_rpd(fore200e, vcc, entry->rpd); |
| 1210 | } |
| 1211 | else { |
| 1212 | DPRINTK(2, "damaged PDU on %d.%d.%d\n", |
| 1213 | fore200e->atm_dev->number, |
| 1214 | entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); |
| 1215 | atomic_inc(&vcc->stats->rx_err); |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | FORE200E_NEXT_ENTRY(rxq->head, QUEUE_SIZE_RX); |
| 1220 | |
| 1221 | fore200e_collect_rpd(fore200e, entry->rpd); |
| 1222 | |
| 1223 | /* rewrite the rpd address to ack the received PDU */ |
| 1224 | fore200e->bus->write(entry->rpd_dma, &entry->cp_entry->rpd_haddr); |
| 1225 | *entry->status = STATUS_FREE; |
| 1226 | |
| 1227 | fore200e_supply(fore200e); |
| 1228 | } |
| 1229 | } |
| 1230 | |
| 1231 | |
| 1232 | #ifndef FORE200E_USE_TASKLET |
| 1233 | static void |
| 1234 | fore200e_irq(struct fore200e* fore200e) |
| 1235 | { |
| 1236 | unsigned long flags; |
| 1237 | |
| 1238 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1239 | fore200e_rx_irq(fore200e); |
| 1240 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1241 | |
| 1242 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1243 | fore200e_tx_irq(fore200e); |
| 1244 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1245 | } |
| 1246 | #endif |
| 1247 | |
| 1248 | |
| 1249 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1250 | fore200e_interrupt(int irq, void* dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | { |
| 1252 | struct fore200e* fore200e = FORE200E_DEV((struct atm_dev*)dev); |
| 1253 | |
| 1254 | if (fore200e->bus->irq_check(fore200e) == 0) { |
| 1255 | |
| 1256 | DPRINTK(3, "interrupt NOT triggered by device %d\n", fore200e->atm_dev->number); |
| 1257 | return IRQ_NONE; |
| 1258 | } |
| 1259 | DPRINTK(3, "interrupt triggered by device %d\n", fore200e->atm_dev->number); |
| 1260 | |
| 1261 | #ifdef FORE200E_USE_TASKLET |
| 1262 | tasklet_schedule(&fore200e->tx_tasklet); |
| 1263 | tasklet_schedule(&fore200e->rx_tasklet); |
| 1264 | #else |
| 1265 | fore200e_irq(fore200e); |
| 1266 | #endif |
| 1267 | |
| 1268 | fore200e->bus->irq_ack(fore200e); |
| 1269 | return IRQ_HANDLED; |
| 1270 | } |
| 1271 | |
| 1272 | |
| 1273 | #ifdef FORE200E_USE_TASKLET |
| 1274 | static void |
| 1275 | fore200e_tx_tasklet(unsigned long data) |
| 1276 | { |
| 1277 | struct fore200e* fore200e = (struct fore200e*) data; |
| 1278 | unsigned long flags; |
| 1279 | |
| 1280 | DPRINTK(3, "tx tasklet scheduled for device %d\n", fore200e->atm_dev->number); |
| 1281 | |
| 1282 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1283 | fore200e_tx_irq(fore200e); |
| 1284 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | static void |
| 1289 | fore200e_rx_tasklet(unsigned long data) |
| 1290 | { |
| 1291 | struct fore200e* fore200e = (struct fore200e*) data; |
| 1292 | unsigned long flags; |
| 1293 | |
| 1294 | DPRINTK(3, "rx tasklet scheduled for device %d\n", fore200e->atm_dev->number); |
| 1295 | |
| 1296 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1297 | fore200e_rx_irq((struct fore200e*) data); |
| 1298 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1299 | } |
| 1300 | #endif |
| 1301 | |
| 1302 | |
| 1303 | static int |
| 1304 | fore200e_select_scheme(struct atm_vcc* vcc) |
| 1305 | { |
| 1306 | /* fairly balance the VCs over (identical) buffer schemes */ |
| 1307 | int scheme = vcc->vci % 2 ? BUFFER_SCHEME_ONE : BUFFER_SCHEME_TWO; |
| 1308 | |
| 1309 | DPRINTK(1, "VC %d.%d.%d uses buffer scheme %d\n", |
| 1310 | vcc->itf, vcc->vpi, vcc->vci, scheme); |
| 1311 | |
| 1312 | return scheme; |
| 1313 | } |
| 1314 | |
| 1315 | |
| 1316 | static int |
| 1317 | fore200e_activate_vcin(struct fore200e* fore200e, int activate, struct atm_vcc* vcc, int mtu) |
| 1318 | { |
| 1319 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 1320 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; |
| 1321 | struct activate_opcode activ_opcode; |
| 1322 | struct deactivate_opcode deactiv_opcode; |
| 1323 | struct vpvc vpvc; |
| 1324 | int ok; |
| 1325 | enum fore200e_aal aal = fore200e_atm2fore_aal(vcc->qos.aal); |
| 1326 | |
| 1327 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); |
| 1328 | |
| 1329 | if (activate) { |
| 1330 | FORE200E_VCC(vcc)->scheme = fore200e_select_scheme(vcc); |
| 1331 | |
| 1332 | activ_opcode.opcode = OPCODE_ACTIVATE_VCIN; |
| 1333 | activ_opcode.aal = aal; |
| 1334 | activ_opcode.scheme = FORE200E_VCC(vcc)->scheme; |
| 1335 | activ_opcode.pad = 0; |
| 1336 | } |
| 1337 | else { |
| 1338 | deactiv_opcode.opcode = OPCODE_DEACTIVATE_VCIN; |
| 1339 | deactiv_opcode.pad = 0; |
| 1340 | } |
| 1341 | |
| 1342 | vpvc.vci = vcc->vci; |
| 1343 | vpvc.vpi = vcc->vpi; |
| 1344 | |
| 1345 | *entry->status = STATUS_PENDING; |
| 1346 | |
| 1347 | if (activate) { |
| 1348 | |
| 1349 | #ifdef FORE200E_52BYTE_AAL0_SDU |
| 1350 | mtu = 48; |
| 1351 | #endif |
| 1352 | /* the MTU is not used by the cp, except in the case of AAL0 */ |
| 1353 | fore200e->bus->write(mtu, &entry->cp_entry->cmd.activate_block.mtu); |
| 1354 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.vpvc); |
| 1355 | fore200e->bus->write(*(u32*)&activ_opcode, (u32 __iomem *)&entry->cp_entry->cmd.activate_block.opcode); |
| 1356 | } |
| 1357 | else { |
| 1358 | fore200e->bus->write(*(u32*)&vpvc, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.vpvc); |
| 1359 | fore200e->bus->write(*(u32*)&deactiv_opcode, (u32 __iomem *)&entry->cp_entry->cmd.deactivate_block.opcode); |
| 1360 | } |
| 1361 | |
| 1362 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); |
| 1363 | |
| 1364 | *entry->status = STATUS_FREE; |
| 1365 | |
| 1366 | if (ok == 0) { |
| 1367 | printk(FORE200E "unable to %s VC %d.%d.%d\n", |
| 1368 | activate ? "open" : "close", vcc->itf, vcc->vpi, vcc->vci); |
| 1369 | return -EIO; |
| 1370 | } |
| 1371 | |
| 1372 | DPRINTK(1, "VC %d.%d.%d %sed\n", vcc->itf, vcc->vpi, vcc->vci, |
| 1373 | activate ? "open" : "clos"); |
| 1374 | |
| 1375 | return 0; |
| 1376 | } |
| 1377 | |
| 1378 | |
| 1379 | #define FORE200E_MAX_BACK2BACK_CELLS 255 /* XXX depends on CDVT */ |
| 1380 | |
| 1381 | static void |
| 1382 | fore200e_rate_ctrl(struct atm_qos* qos, struct tpd_rate* rate) |
| 1383 | { |
| 1384 | if (qos->txtp.max_pcr < ATM_OC3_PCR) { |
| 1385 | |
| 1386 | /* compute the data cells to idle cells ratio from the tx PCR */ |
| 1387 | rate->data_cells = qos->txtp.max_pcr * FORE200E_MAX_BACK2BACK_CELLS / ATM_OC3_PCR; |
| 1388 | rate->idle_cells = FORE200E_MAX_BACK2BACK_CELLS - rate->data_cells; |
| 1389 | } |
| 1390 | else { |
| 1391 | /* disable rate control */ |
| 1392 | rate->data_cells = rate->idle_cells = 0; |
| 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | |
| 1397 | static int |
| 1398 | fore200e_open(struct atm_vcc *vcc) |
| 1399 | { |
| 1400 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); |
| 1401 | struct fore200e_vcc* fore200e_vcc; |
| 1402 | struct fore200e_vc_map* vc_map; |
| 1403 | unsigned long flags; |
| 1404 | int vci = vcc->vci; |
| 1405 | short vpi = vcc->vpi; |
| 1406 | |
| 1407 | ASSERT((vpi >= 0) && (vpi < 1<<FORE200E_VPI_BITS)); |
| 1408 | ASSERT((vci >= 0) && (vci < 1<<FORE200E_VCI_BITS)); |
| 1409 | |
| 1410 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1411 | |
| 1412 | vc_map = FORE200E_VC_MAP(fore200e, vpi, vci); |
| 1413 | if (vc_map->vcc) { |
| 1414 | |
| 1415 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1416 | |
| 1417 | printk(FORE200E "VC %d.%d.%d already in use\n", |
| 1418 | fore200e->atm_dev->number, vpi, vci); |
| 1419 | |
| 1420 | return -EINVAL; |
| 1421 | } |
| 1422 | |
| 1423 | vc_map->vcc = vcc; |
| 1424 | |
| 1425 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1426 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 1427 | fore200e_vcc = kzalloc(sizeof(struct fore200e_vcc), GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | if (fore200e_vcc == NULL) { |
| 1429 | vc_map->vcc = NULL; |
| 1430 | return -ENOMEM; |
| 1431 | } |
| 1432 | |
| 1433 | DPRINTK(2, "opening %d.%d.%d:%d QoS = (tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " |
| 1434 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d)\n", |
| 1435 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), |
| 1436 | fore200e_traffic_class[ vcc->qos.txtp.traffic_class ], |
| 1437 | vcc->qos.txtp.min_pcr, vcc->qos.txtp.max_pcr, vcc->qos.txtp.max_cdv, vcc->qos.txtp.max_sdu, |
| 1438 | fore200e_traffic_class[ vcc->qos.rxtp.traffic_class ], |
| 1439 | vcc->qos.rxtp.min_pcr, vcc->qos.rxtp.max_pcr, vcc->qos.rxtp.max_cdv, vcc->qos.rxtp.max_sdu); |
| 1440 | |
| 1441 | /* pseudo-CBR bandwidth requested? */ |
| 1442 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { |
| 1443 | |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 1444 | mutex_lock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | if (fore200e->available_cell_rate < vcc->qos.txtp.max_pcr) { |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 1446 | mutex_unlock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 1448 | kfree(fore200e_vcc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | vc_map->vcc = NULL; |
| 1450 | return -EAGAIN; |
| 1451 | } |
| 1452 | |
| 1453 | /* reserve bandwidth */ |
| 1454 | fore200e->available_cell_rate -= vcc->qos.txtp.max_pcr; |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 1455 | mutex_unlock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | } |
| 1457 | |
| 1458 | vcc->itf = vcc->dev->number; |
| 1459 | |
| 1460 | set_bit(ATM_VF_PARTIAL,&vcc->flags); |
| 1461 | set_bit(ATM_VF_ADDR, &vcc->flags); |
| 1462 | |
| 1463 | vcc->dev_data = fore200e_vcc; |
| 1464 | |
| 1465 | if (fore200e_activate_vcin(fore200e, 1, vcc, vcc->qos.rxtp.max_sdu) < 0) { |
| 1466 | |
| 1467 | vc_map->vcc = NULL; |
| 1468 | |
| 1469 | clear_bit(ATM_VF_ADDR, &vcc->flags); |
| 1470 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); |
| 1471 | |
| 1472 | vcc->dev_data = NULL; |
| 1473 | |
| 1474 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; |
| 1475 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 1476 | kfree(fore200e_vcc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | return -EINVAL; |
| 1478 | } |
| 1479 | |
| 1480 | /* compute rate control parameters */ |
| 1481 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { |
| 1482 | |
| 1483 | fore200e_rate_ctrl(&vcc->qos, &fore200e_vcc->rate); |
| 1484 | set_bit(ATM_VF_HASQOS, &vcc->flags); |
| 1485 | |
| 1486 | DPRINTK(3, "tx on %d.%d.%d:%d, tx PCR = %d, rx PCR = %d, data_cells = %u, idle_cells = %u\n", |
| 1487 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), |
| 1488 | vcc->qos.txtp.max_pcr, vcc->qos.rxtp.max_pcr, |
| 1489 | fore200e_vcc->rate.data_cells, fore200e_vcc->rate.idle_cells); |
| 1490 | } |
| 1491 | |
| 1492 | fore200e_vcc->tx_min_pdu = fore200e_vcc->rx_min_pdu = MAX_PDU_SIZE + 1; |
| 1493 | fore200e_vcc->tx_max_pdu = fore200e_vcc->rx_max_pdu = 0; |
| 1494 | fore200e_vcc->tx_pdu = fore200e_vcc->rx_pdu = 0; |
| 1495 | |
| 1496 | /* new incarnation of the vcc */ |
| 1497 | vc_map->incarn = ++fore200e->incarn_count; |
| 1498 | |
| 1499 | /* VC unusable before this flag is set */ |
| 1500 | set_bit(ATM_VF_READY, &vcc->flags); |
| 1501 | |
| 1502 | return 0; |
| 1503 | } |
| 1504 | |
| 1505 | |
| 1506 | static void |
| 1507 | fore200e_close(struct atm_vcc* vcc) |
| 1508 | { |
| 1509 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); |
| 1510 | struct fore200e_vcc* fore200e_vcc; |
| 1511 | struct fore200e_vc_map* vc_map; |
| 1512 | unsigned long flags; |
| 1513 | |
| 1514 | ASSERT(vcc); |
| 1515 | ASSERT((vcc->vpi >= 0) && (vcc->vpi < 1<<FORE200E_VPI_BITS)); |
| 1516 | ASSERT((vcc->vci >= 0) && (vcc->vci < 1<<FORE200E_VCI_BITS)); |
| 1517 | |
| 1518 | DPRINTK(2, "closing %d.%d.%d:%d\n", vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal)); |
| 1519 | |
| 1520 | clear_bit(ATM_VF_READY, &vcc->flags); |
| 1521 | |
| 1522 | fore200e_activate_vcin(fore200e, 0, vcc, 0); |
| 1523 | |
| 1524 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1525 | |
| 1526 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); |
| 1527 | |
| 1528 | /* the vc is no longer considered as "in use" by fore200e_open() */ |
| 1529 | vc_map->vcc = NULL; |
| 1530 | |
| 1531 | vcc->itf = vcc->vci = vcc->vpi = 0; |
| 1532 | |
| 1533 | fore200e_vcc = FORE200E_VCC(vcc); |
| 1534 | vcc->dev_data = NULL; |
| 1535 | |
| 1536 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1537 | |
| 1538 | /* release reserved bandwidth, if any */ |
| 1539 | if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) { |
| 1540 | |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 1541 | mutex_lock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 1543 | mutex_unlock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1544 | |
| 1545 | clear_bit(ATM_VF_HASQOS, &vcc->flags); |
| 1546 | } |
| 1547 | |
| 1548 | clear_bit(ATM_VF_ADDR, &vcc->flags); |
| 1549 | clear_bit(ATM_VF_PARTIAL,&vcc->flags); |
| 1550 | |
| 1551 | ASSERT(fore200e_vcc); |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 1552 | kfree(fore200e_vcc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | } |
| 1554 | |
| 1555 | |
| 1556 | static int |
| 1557 | fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb) |
| 1558 | { |
| 1559 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); |
| 1560 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); |
| 1561 | struct fore200e_vc_map* vc_map; |
| 1562 | struct host_txq* txq = &fore200e->host_txq; |
| 1563 | struct host_txq_entry* entry; |
| 1564 | struct tpd* tpd; |
| 1565 | struct tpd_haddr tpd_haddr; |
| 1566 | int retry = CONFIG_ATM_FORE200E_TX_RETRY; |
| 1567 | int tx_copy = 0; |
| 1568 | int tx_len = skb->len; |
| 1569 | u32* cell_header = NULL; |
| 1570 | unsigned char* skb_data; |
| 1571 | int skb_len; |
| 1572 | unsigned char* data; |
| 1573 | unsigned long flags; |
| 1574 | |
| 1575 | ASSERT(vcc); |
| 1576 | ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); |
| 1577 | ASSERT(fore200e); |
| 1578 | ASSERT(fore200e_vcc); |
| 1579 | |
| 1580 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { |
| 1581 | DPRINTK(1, "VC %d.%d.%d not ready for tx\n", vcc->itf, vcc->vpi, vcc->vpi); |
| 1582 | dev_kfree_skb_any(skb); |
| 1583 | return -EINVAL; |
| 1584 | } |
| 1585 | |
| 1586 | #ifdef FORE200E_52BYTE_AAL0_SDU |
| 1587 | if ((vcc->qos.aal == ATM_AAL0) && (vcc->qos.txtp.max_sdu == ATM_AAL0_SDU)) { |
| 1588 | cell_header = (u32*) skb->data; |
| 1589 | skb_data = skb->data + 4; /* skip 4-byte cell header */ |
| 1590 | skb_len = tx_len = skb->len - 4; |
| 1591 | |
| 1592 | DPRINTK(3, "user-supplied cell header = 0x%08x\n", *cell_header); |
| 1593 | } |
| 1594 | else |
| 1595 | #endif |
| 1596 | { |
| 1597 | skb_data = skb->data; |
| 1598 | skb_len = skb->len; |
| 1599 | } |
| 1600 | |
| 1601 | if (((unsigned long)skb_data) & 0x3) { |
| 1602 | |
| 1603 | DPRINTK(2, "misaligned tx PDU on device %s\n", fore200e->name); |
| 1604 | tx_copy = 1; |
| 1605 | tx_len = skb_len; |
| 1606 | } |
| 1607 | |
| 1608 | if ((vcc->qos.aal == ATM_AAL0) && (skb_len % ATM_CELL_PAYLOAD)) { |
| 1609 | |
| 1610 | /* this simply NUKES the PCA board */ |
| 1611 | DPRINTK(2, "incomplete tx AAL0 PDU on device %s\n", fore200e->name); |
| 1612 | tx_copy = 1; |
| 1613 | tx_len = ((skb_len / ATM_CELL_PAYLOAD) + 1) * ATM_CELL_PAYLOAD; |
| 1614 | } |
| 1615 | |
| 1616 | if (tx_copy) { |
| 1617 | data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA); |
| 1618 | if (data == NULL) { |
| 1619 | if (vcc->pop) { |
| 1620 | vcc->pop(vcc, skb); |
| 1621 | } |
| 1622 | else { |
| 1623 | dev_kfree_skb_any(skb); |
| 1624 | } |
| 1625 | return -ENOMEM; |
| 1626 | } |
| 1627 | |
| 1628 | memcpy(data, skb_data, skb_len); |
| 1629 | if (skb_len < tx_len) |
| 1630 | memset(data + skb_len, 0x00, tx_len - skb_len); |
| 1631 | } |
| 1632 | else { |
| 1633 | data = skb_data; |
| 1634 | } |
| 1635 | |
| 1636 | vc_map = FORE200E_VC_MAP(fore200e, vcc->vpi, vcc->vci); |
| 1637 | ASSERT(vc_map->vcc == vcc); |
| 1638 | |
| 1639 | retry_here: |
| 1640 | |
| 1641 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 1642 | |
| 1643 | entry = &txq->host_entry[ txq->head ]; |
| 1644 | |
| 1645 | if ((*entry->status != STATUS_FREE) || (txq->txing >= QUEUE_SIZE_TX - 2)) { |
| 1646 | |
| 1647 | /* try to free completed tx queue entries */ |
| 1648 | fore200e_tx_irq(fore200e); |
| 1649 | |
| 1650 | if (*entry->status != STATUS_FREE) { |
| 1651 | |
| 1652 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1653 | |
| 1654 | /* retry once again? */ |
| 1655 | if (--retry > 0) { |
| 1656 | udelay(50); |
| 1657 | goto retry_here; |
| 1658 | } |
| 1659 | |
| 1660 | atomic_inc(&vcc->stats->tx_err); |
| 1661 | |
| 1662 | fore200e->tx_sat++; |
| 1663 | DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", |
| 1664 | fore200e->name, fore200e->cp_queues->heartbeat); |
| 1665 | if (vcc->pop) { |
| 1666 | vcc->pop(vcc, skb); |
| 1667 | } |
| 1668 | else { |
| 1669 | dev_kfree_skb_any(skb); |
| 1670 | } |
| 1671 | |
| 1672 | if (tx_copy) |
| 1673 | kfree(data); |
| 1674 | |
| 1675 | return -ENOBUFS; |
| 1676 | } |
| 1677 | } |
| 1678 | |
| 1679 | entry->incarn = vc_map->incarn; |
| 1680 | entry->vc_map = vc_map; |
| 1681 | entry->skb = skb; |
| 1682 | entry->data = tx_copy ? data : NULL; |
| 1683 | |
| 1684 | tpd = entry->tpd; |
| 1685 | tpd->tsd[ 0 ].buffer = fore200e->bus->dma_map(fore200e, data, tx_len, DMA_TO_DEVICE); |
| 1686 | tpd->tsd[ 0 ].length = tx_len; |
| 1687 | |
| 1688 | FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX); |
| 1689 | txq->txing++; |
| 1690 | |
| 1691 | /* The dma_map call above implies a dma_sync so the device can use it, |
| 1692 | * thus no explicit dma_sync call is necessary here. |
| 1693 | */ |
| 1694 | |
| 1695 | DPRINTK(3, "tx on %d.%d.%d:%d, len = %u (%u)\n", |
| 1696 | vcc->itf, vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), |
| 1697 | tpd->tsd[0].length, skb_len); |
| 1698 | |
| 1699 | if (skb_len < fore200e_vcc->tx_min_pdu) |
| 1700 | fore200e_vcc->tx_min_pdu = skb_len; |
| 1701 | if (skb_len > fore200e_vcc->tx_max_pdu) |
| 1702 | fore200e_vcc->tx_max_pdu = skb_len; |
| 1703 | fore200e_vcc->tx_pdu++; |
| 1704 | |
| 1705 | /* set tx rate control information */ |
| 1706 | tpd->rate.data_cells = fore200e_vcc->rate.data_cells; |
| 1707 | tpd->rate.idle_cells = fore200e_vcc->rate.idle_cells; |
| 1708 | |
| 1709 | if (cell_header) { |
| 1710 | tpd->atm_header.clp = (*cell_header & ATM_HDR_CLP); |
| 1711 | tpd->atm_header.plt = (*cell_header & ATM_HDR_PTI_MASK) >> ATM_HDR_PTI_SHIFT; |
| 1712 | tpd->atm_header.vci = (*cell_header & ATM_HDR_VCI_MASK) >> ATM_HDR_VCI_SHIFT; |
| 1713 | tpd->atm_header.vpi = (*cell_header & ATM_HDR_VPI_MASK) >> ATM_HDR_VPI_SHIFT; |
| 1714 | tpd->atm_header.gfc = (*cell_header & ATM_HDR_GFC_MASK) >> ATM_HDR_GFC_SHIFT; |
| 1715 | } |
| 1716 | else { |
| 1717 | /* set the ATM header, common to all cells conveying the PDU */ |
| 1718 | tpd->atm_header.clp = 0; |
| 1719 | tpd->atm_header.plt = 0; |
| 1720 | tpd->atm_header.vci = vcc->vci; |
| 1721 | tpd->atm_header.vpi = vcc->vpi; |
| 1722 | tpd->atm_header.gfc = 0; |
| 1723 | } |
| 1724 | |
| 1725 | tpd->spec.length = tx_len; |
| 1726 | tpd->spec.nseg = 1; |
| 1727 | tpd->spec.aal = fore200e_atm2fore_aal(vcc->qos.aal); |
| 1728 | tpd->spec.intr = 1; |
| 1729 | |
| 1730 | tpd_haddr.size = sizeof(struct tpd) / (1<<TPD_HADDR_SHIFT); /* size is expressed in 32 byte blocks */ |
| 1731 | tpd_haddr.pad = 0; |
| 1732 | tpd_haddr.haddr = entry->tpd_dma >> TPD_HADDR_SHIFT; /* shift the address, as we are in a bitfield */ |
| 1733 | |
| 1734 | *entry->status = STATUS_PENDING; |
| 1735 | fore200e->bus->write(*(u32*)&tpd_haddr, (u32 __iomem *)&entry->cp_entry->tpd_haddr); |
| 1736 | |
| 1737 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 1738 | |
| 1739 | return 0; |
| 1740 | } |
| 1741 | |
| 1742 | |
| 1743 | static int |
| 1744 | fore200e_getstats(struct fore200e* fore200e) |
| 1745 | { |
| 1746 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 1747 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; |
| 1748 | struct stats_opcode opcode; |
| 1749 | int ok; |
| 1750 | u32 stats_dma_addr; |
| 1751 | |
| 1752 | if (fore200e->stats == NULL) { |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 1753 | fore200e->stats = kzalloc(sizeof(struct stats), GFP_KERNEL | GFP_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | if (fore200e->stats == NULL) |
| 1755 | return -ENOMEM; |
| 1756 | } |
| 1757 | |
| 1758 | stats_dma_addr = fore200e->bus->dma_map(fore200e, fore200e->stats, |
| 1759 | sizeof(struct stats), DMA_FROM_DEVICE); |
| 1760 | |
| 1761 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); |
| 1762 | |
| 1763 | opcode.opcode = OPCODE_GET_STATS; |
| 1764 | opcode.pad = 0; |
| 1765 | |
| 1766 | fore200e->bus->write(stats_dma_addr, &entry->cp_entry->cmd.stats_block.stats_haddr); |
| 1767 | |
| 1768 | *entry->status = STATUS_PENDING; |
| 1769 | |
| 1770 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.stats_block.opcode); |
| 1771 | |
| 1772 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); |
| 1773 | |
| 1774 | *entry->status = STATUS_FREE; |
| 1775 | |
| 1776 | fore200e->bus->dma_unmap(fore200e, stats_dma_addr, sizeof(struct stats), DMA_FROM_DEVICE); |
| 1777 | |
| 1778 | if (ok == 0) { |
| 1779 | printk(FORE200E "unable to get statistics from device %s\n", fore200e->name); |
| 1780 | return -EIO; |
| 1781 | } |
| 1782 | |
| 1783 | return 0; |
| 1784 | } |
| 1785 | |
| 1786 | |
| 1787 | static int |
| 1788 | fore200e_getsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, int optlen) |
| 1789 | { |
| 1790 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ |
| 1791 | |
| 1792 | DPRINTK(2, "getsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", |
| 1793 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); |
| 1794 | |
| 1795 | return -EINVAL; |
| 1796 | } |
| 1797 | |
| 1798 | |
| 1799 | static int |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 1800 | fore200e_setsockopt(struct atm_vcc* vcc, int level, int optname, void __user *optval, unsigned int optlen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1801 | { |
| 1802 | /* struct fore200e* fore200e = FORE200E_DEV(vcc->dev); */ |
| 1803 | |
| 1804 | DPRINTK(2, "setsockopt %d.%d.%d, level = %d, optname = 0x%x, optval = 0x%p, optlen = %d\n", |
| 1805 | vcc->itf, vcc->vpi, vcc->vci, level, optname, optval, optlen); |
| 1806 | |
| 1807 | return -EINVAL; |
| 1808 | } |
| 1809 | |
| 1810 | |
| 1811 | #if 0 /* currently unused */ |
| 1812 | static int |
| 1813 | fore200e_get_oc3(struct fore200e* fore200e, struct oc3_regs* regs) |
| 1814 | { |
| 1815 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 1816 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; |
| 1817 | struct oc3_opcode opcode; |
| 1818 | int ok; |
| 1819 | u32 oc3_regs_dma_addr; |
| 1820 | |
| 1821 | oc3_regs_dma_addr = fore200e->bus->dma_map(fore200e, regs, sizeof(struct oc3_regs), DMA_FROM_DEVICE); |
| 1822 | |
| 1823 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); |
| 1824 | |
| 1825 | opcode.opcode = OPCODE_GET_OC3; |
| 1826 | opcode.reg = 0; |
| 1827 | opcode.value = 0; |
| 1828 | opcode.mask = 0; |
| 1829 | |
| 1830 | fore200e->bus->write(oc3_regs_dma_addr, &entry->cp_entry->cmd.oc3_block.regs_haddr); |
| 1831 | |
| 1832 | *entry->status = STATUS_PENDING; |
| 1833 | |
| 1834 | fore200e->bus->write(*(u32*)&opcode, (u32*)&entry->cp_entry->cmd.oc3_block.opcode); |
| 1835 | |
| 1836 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); |
| 1837 | |
| 1838 | *entry->status = STATUS_FREE; |
| 1839 | |
| 1840 | fore200e->bus->dma_unmap(fore200e, oc3_regs_dma_addr, sizeof(struct oc3_regs), DMA_FROM_DEVICE); |
| 1841 | |
| 1842 | if (ok == 0) { |
| 1843 | printk(FORE200E "unable to get OC-3 regs of device %s\n", fore200e->name); |
| 1844 | return -EIO; |
| 1845 | } |
| 1846 | |
| 1847 | return 0; |
| 1848 | } |
| 1849 | #endif |
| 1850 | |
| 1851 | |
| 1852 | static int |
| 1853 | fore200e_set_oc3(struct fore200e* fore200e, u32 reg, u32 value, u32 mask) |
| 1854 | { |
| 1855 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 1856 | struct host_cmdq_entry* entry = &cmdq->host_entry[ cmdq->head ]; |
| 1857 | struct oc3_opcode opcode; |
| 1858 | int ok; |
| 1859 | |
| 1860 | DPRINTK(2, "set OC-3 reg = 0x%02x, value = 0x%02x, mask = 0x%02x\n", reg, value, mask); |
| 1861 | |
| 1862 | FORE200E_NEXT_ENTRY(cmdq->head, QUEUE_SIZE_CMD); |
| 1863 | |
| 1864 | opcode.opcode = OPCODE_SET_OC3; |
| 1865 | opcode.reg = reg; |
| 1866 | opcode.value = value; |
| 1867 | opcode.mask = mask; |
| 1868 | |
| 1869 | fore200e->bus->write(0, &entry->cp_entry->cmd.oc3_block.regs_haddr); |
| 1870 | |
| 1871 | *entry->status = STATUS_PENDING; |
| 1872 | |
| 1873 | fore200e->bus->write(*(u32*)&opcode, (u32 __iomem *)&entry->cp_entry->cmd.oc3_block.opcode); |
| 1874 | |
| 1875 | ok = fore200e_poll(fore200e, entry->status, STATUS_COMPLETE, 400); |
| 1876 | |
| 1877 | *entry->status = STATUS_FREE; |
| 1878 | |
| 1879 | if (ok == 0) { |
| 1880 | printk(FORE200E "unable to set OC-3 reg 0x%02x of device %s\n", reg, fore200e->name); |
| 1881 | return -EIO; |
| 1882 | } |
| 1883 | |
| 1884 | return 0; |
| 1885 | } |
| 1886 | |
| 1887 | |
| 1888 | static int |
| 1889 | fore200e_setloop(struct fore200e* fore200e, int loop_mode) |
| 1890 | { |
| 1891 | u32 mct_value, mct_mask; |
| 1892 | int error; |
| 1893 | |
| 1894 | if (!capable(CAP_NET_ADMIN)) |
| 1895 | return -EPERM; |
| 1896 | |
| 1897 | switch (loop_mode) { |
| 1898 | |
| 1899 | case ATM_LM_NONE: |
| 1900 | mct_value = 0; |
| 1901 | mct_mask = SUNI_MCT_DLE | SUNI_MCT_LLE; |
| 1902 | break; |
| 1903 | |
| 1904 | case ATM_LM_LOC_PHY: |
| 1905 | mct_value = mct_mask = SUNI_MCT_DLE; |
| 1906 | break; |
| 1907 | |
| 1908 | case ATM_LM_RMT_PHY: |
| 1909 | mct_value = mct_mask = SUNI_MCT_LLE; |
| 1910 | break; |
| 1911 | |
| 1912 | default: |
| 1913 | return -EINVAL; |
| 1914 | } |
| 1915 | |
| 1916 | error = fore200e_set_oc3(fore200e, SUNI_MCT, mct_value, mct_mask); |
| 1917 | if (error == 0) |
| 1918 | fore200e->loop_mode = loop_mode; |
| 1919 | |
| 1920 | return error; |
| 1921 | } |
| 1922 | |
| 1923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | static int |
| 1925 | fore200e_fetch_stats(struct fore200e* fore200e, struct sonet_stats __user *arg) |
| 1926 | { |
| 1927 | struct sonet_stats tmp; |
| 1928 | |
| 1929 | if (fore200e_getstats(fore200e) < 0) |
| 1930 | return -EIO; |
| 1931 | |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 1932 | tmp.section_bip = be32_to_cpu(fore200e->stats->oc3.section_bip8_errors); |
| 1933 | tmp.line_bip = be32_to_cpu(fore200e->stats->oc3.line_bip24_errors); |
| 1934 | tmp.path_bip = be32_to_cpu(fore200e->stats->oc3.path_bip8_errors); |
| 1935 | tmp.line_febe = be32_to_cpu(fore200e->stats->oc3.line_febe_errors); |
| 1936 | tmp.path_febe = be32_to_cpu(fore200e->stats->oc3.path_febe_errors); |
| 1937 | tmp.corr_hcs = be32_to_cpu(fore200e->stats->oc3.corr_hcs_errors); |
| 1938 | tmp.uncorr_hcs = be32_to_cpu(fore200e->stats->oc3.ucorr_hcs_errors); |
| 1939 | tmp.tx_cells = be32_to_cpu(fore200e->stats->aal0.cells_transmitted) + |
| 1940 | be32_to_cpu(fore200e->stats->aal34.cells_transmitted) + |
| 1941 | be32_to_cpu(fore200e->stats->aal5.cells_transmitted); |
| 1942 | tmp.rx_cells = be32_to_cpu(fore200e->stats->aal0.cells_received) + |
| 1943 | be32_to_cpu(fore200e->stats->aal34.cells_received) + |
| 1944 | be32_to_cpu(fore200e->stats->aal5.cells_received); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | |
| 1946 | if (arg) |
| 1947 | return copy_to_user(arg, &tmp, sizeof(struct sonet_stats)) ? -EFAULT : 0; |
| 1948 | |
| 1949 | return 0; |
| 1950 | } |
| 1951 | |
| 1952 | |
| 1953 | static int |
| 1954 | fore200e_ioctl(struct atm_dev* dev, unsigned int cmd, void __user * arg) |
| 1955 | { |
| 1956 | struct fore200e* fore200e = FORE200E_DEV(dev); |
| 1957 | |
| 1958 | DPRINTK(2, "ioctl cmd = 0x%x (%u), arg = 0x%p (%lu)\n", cmd, cmd, arg, (unsigned long)arg); |
| 1959 | |
| 1960 | switch (cmd) { |
| 1961 | |
| 1962 | case SONET_GETSTAT: |
| 1963 | return fore200e_fetch_stats(fore200e, (struct sonet_stats __user *)arg); |
| 1964 | |
| 1965 | case SONET_GETDIAG: |
| 1966 | return put_user(0, (int __user *)arg) ? -EFAULT : 0; |
| 1967 | |
| 1968 | case ATM_SETLOOP: |
| 1969 | return fore200e_setloop(fore200e, (int)(unsigned long)arg); |
| 1970 | |
| 1971 | case ATM_GETLOOP: |
| 1972 | return put_user(fore200e->loop_mode, (int __user *)arg) ? -EFAULT : 0; |
| 1973 | |
| 1974 | case ATM_QUERYLOOP: |
| 1975 | return put_user(ATM_LM_LOC_PHY | ATM_LM_RMT_PHY, (int __user *)arg) ? -EFAULT : 0; |
| 1976 | } |
| 1977 | |
| 1978 | return -ENOSYS; /* not implemented */ |
| 1979 | } |
| 1980 | |
| 1981 | |
| 1982 | static int |
| 1983 | fore200e_change_qos(struct atm_vcc* vcc,struct atm_qos* qos, int flags) |
| 1984 | { |
| 1985 | struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc); |
| 1986 | struct fore200e* fore200e = FORE200E_DEV(vcc->dev); |
| 1987 | |
| 1988 | if (!test_bit(ATM_VF_READY, &vcc->flags)) { |
| 1989 | DPRINTK(1, "VC %d.%d.%d not ready for QoS change\n", vcc->itf, vcc->vpi, vcc->vpi); |
| 1990 | return -EINVAL; |
| 1991 | } |
| 1992 | |
| 1993 | DPRINTK(2, "change_qos %d.%d.%d, " |
| 1994 | "(tx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d; " |
| 1995 | "rx: cl=%s, pcr=%d-%d, cdv=%d, max_sdu=%d), flags = 0x%x\n" |
| 1996 | "available_cell_rate = %u", |
| 1997 | vcc->itf, vcc->vpi, vcc->vci, |
| 1998 | fore200e_traffic_class[ qos->txtp.traffic_class ], |
| 1999 | qos->txtp.min_pcr, qos->txtp.max_pcr, qos->txtp.max_cdv, qos->txtp.max_sdu, |
| 2000 | fore200e_traffic_class[ qos->rxtp.traffic_class ], |
| 2001 | qos->rxtp.min_pcr, qos->rxtp.max_pcr, qos->rxtp.max_cdv, qos->rxtp.max_sdu, |
| 2002 | flags, fore200e->available_cell_rate); |
| 2003 | |
| 2004 | if ((qos->txtp.traffic_class == ATM_CBR) && (qos->txtp.max_pcr > 0)) { |
| 2005 | |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 2006 | mutex_lock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2007 | if (fore200e->available_cell_rate + vcc->qos.txtp.max_pcr < qos->txtp.max_pcr) { |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 2008 | mutex_unlock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | return -EAGAIN; |
| 2010 | } |
| 2011 | |
| 2012 | fore200e->available_cell_rate += vcc->qos.txtp.max_pcr; |
| 2013 | fore200e->available_cell_rate -= qos->txtp.max_pcr; |
| 2014 | |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 2015 | mutex_unlock(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | |
| 2017 | memcpy(&vcc->qos, qos, sizeof(struct atm_qos)); |
| 2018 | |
| 2019 | /* update rate control parameters */ |
| 2020 | fore200e_rate_ctrl(qos, &fore200e_vcc->rate); |
| 2021 | |
| 2022 | set_bit(ATM_VF_HASQOS, &vcc->flags); |
| 2023 | |
| 2024 | return 0; |
| 2025 | } |
| 2026 | |
| 2027 | return -EINVAL; |
| 2028 | } |
| 2029 | |
| 2030 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2031 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | fore200e_irq_request(struct fore200e* fore200e) |
| 2033 | { |
Thomas Gleixner | dace145 | 2006-07-01 19:29:38 -0700 | [diff] [blame] | 2034 | if (request_irq(fore200e->irq, fore200e_interrupt, IRQF_SHARED, fore200e->name, fore200e->atm_dev) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2035 | |
| 2036 | printk(FORE200E "unable to reserve IRQ %s for device %s\n", |
| 2037 | fore200e_irq_itoa(fore200e->irq), fore200e->name); |
| 2038 | return -EBUSY; |
| 2039 | } |
| 2040 | |
| 2041 | printk(FORE200E "IRQ %s reserved for device %s\n", |
| 2042 | fore200e_irq_itoa(fore200e->irq), fore200e->name); |
| 2043 | |
| 2044 | #ifdef FORE200E_USE_TASKLET |
| 2045 | tasklet_init(&fore200e->tx_tasklet, fore200e_tx_tasklet, (unsigned long)fore200e); |
| 2046 | tasklet_init(&fore200e->rx_tasklet, fore200e_rx_tasklet, (unsigned long)fore200e); |
| 2047 | #endif |
| 2048 | |
| 2049 | fore200e->state = FORE200E_STATE_IRQ; |
| 2050 | return 0; |
| 2051 | } |
| 2052 | |
| 2053 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2054 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | fore200e_get_esi(struct fore200e* fore200e) |
| 2056 | { |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2057 | struct prom_data* prom = kzalloc(sizeof(struct prom_data), GFP_KERNEL | GFP_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2058 | int ok, i; |
| 2059 | |
| 2060 | if (!prom) |
| 2061 | return -ENOMEM; |
| 2062 | |
| 2063 | ok = fore200e->bus->prom_read(fore200e, prom); |
| 2064 | if (ok < 0) { |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2065 | kfree(prom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2066 | return -EBUSY; |
| 2067 | } |
| 2068 | |
hartleys | 3008ab3 | 2010-01-05 06:22:20 +0000 | [diff] [blame] | 2069 | printk(FORE200E "device %s, rev. %c, S/N: %d, ESI: %pM\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2070 | fore200e->name, |
| 2071 | (prom->hw_revision & 0xFF) + '@', /* probably meaningless with SBA boards */ |
hartleys | 3008ab3 | 2010-01-05 06:22:20 +0000 | [diff] [blame] | 2072 | prom->serial_number & 0xFFFF, &prom->mac_addr[2]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2073 | |
| 2074 | for (i = 0; i < ESI_LEN; i++) { |
| 2075 | fore200e->esi[ i ] = fore200e->atm_dev->esi[ i ] = prom->mac_addr[ i + 2 ]; |
| 2076 | } |
| 2077 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2078 | kfree(prom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2079 | |
| 2080 | return 0; |
| 2081 | } |
| 2082 | |
| 2083 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2084 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2085 | fore200e_alloc_rx_buf(struct fore200e* fore200e) |
| 2086 | { |
| 2087 | int scheme, magn, nbr, size, i; |
| 2088 | |
| 2089 | struct host_bsq* bsq; |
| 2090 | struct buffer* buffer; |
| 2091 | |
| 2092 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { |
| 2093 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { |
| 2094 | |
| 2095 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; |
| 2096 | |
| 2097 | nbr = fore200e_rx_buf_nbr[ scheme ][ magn ]; |
| 2098 | size = fore200e_rx_buf_size[ scheme ][ magn ]; |
| 2099 | |
| 2100 | DPRINTK(2, "rx buffers %d / %d are being allocated\n", scheme, magn); |
| 2101 | |
| 2102 | /* allocate the array of receive buffers */ |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2103 | buffer = bsq->buffer = kzalloc(nbr * sizeof(struct buffer), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2104 | |
| 2105 | if (buffer == NULL) |
| 2106 | return -ENOMEM; |
| 2107 | |
| 2108 | bsq->freebuf = NULL; |
| 2109 | |
| 2110 | for (i = 0; i < nbr; i++) { |
| 2111 | |
| 2112 | buffer[ i ].scheme = scheme; |
| 2113 | buffer[ i ].magn = magn; |
| 2114 | #ifdef FORE200E_BSQ_DEBUG |
| 2115 | buffer[ i ].index = i; |
| 2116 | buffer[ i ].supplied = 0; |
| 2117 | #endif |
| 2118 | |
| 2119 | /* allocate the receive buffer body */ |
| 2120 | if (fore200e_chunk_alloc(fore200e, |
| 2121 | &buffer[ i ].data, size, fore200e->bus->buffer_alignment, |
| 2122 | DMA_FROM_DEVICE) < 0) { |
| 2123 | |
| 2124 | while (i > 0) |
| 2125 | fore200e_chunk_free(fore200e, &buffer[ --i ].data); |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2126 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2127 | |
| 2128 | return -ENOMEM; |
| 2129 | } |
| 2130 | |
| 2131 | /* insert the buffer into the free buffer list */ |
| 2132 | buffer[ i ].next = bsq->freebuf; |
| 2133 | bsq->freebuf = &buffer[ i ]; |
| 2134 | } |
| 2135 | /* all the buffers are free, initially */ |
| 2136 | bsq->freebuf_count = nbr; |
| 2137 | |
| 2138 | #ifdef FORE200E_BSQ_DEBUG |
| 2139 | bsq_audit(3, bsq, scheme, magn); |
| 2140 | #endif |
| 2141 | } |
| 2142 | } |
| 2143 | |
| 2144 | fore200e->state = FORE200E_STATE_ALLOC_BUF; |
| 2145 | return 0; |
| 2146 | } |
| 2147 | |
| 2148 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2149 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2150 | fore200e_init_bs_queue(struct fore200e* fore200e) |
| 2151 | { |
| 2152 | int scheme, magn, i; |
| 2153 | |
| 2154 | struct host_bsq* bsq; |
| 2155 | struct cp_bsq_entry __iomem * cp_entry; |
| 2156 | |
| 2157 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) { |
| 2158 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) { |
| 2159 | |
| 2160 | DPRINTK(2, "buffer supply queue %d / %d is being initialized\n", scheme, magn); |
| 2161 | |
| 2162 | bsq = &fore200e->host_bsq[ scheme ][ magn ]; |
| 2163 | |
| 2164 | /* allocate and align the array of status words */ |
| 2165 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2166 | &bsq->status, |
| 2167 | sizeof(enum status), |
| 2168 | QUEUE_SIZE_BS, |
| 2169 | fore200e->bus->status_alignment) < 0) { |
| 2170 | return -ENOMEM; |
| 2171 | } |
| 2172 | |
| 2173 | /* allocate and align the array of receive buffer descriptors */ |
| 2174 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2175 | &bsq->rbd_block, |
| 2176 | sizeof(struct rbd_block), |
| 2177 | QUEUE_SIZE_BS, |
| 2178 | fore200e->bus->descr_alignment) < 0) { |
| 2179 | |
| 2180 | fore200e->bus->dma_chunk_free(fore200e, &bsq->status); |
| 2181 | return -ENOMEM; |
| 2182 | } |
| 2183 | |
| 2184 | /* get the base address of the cp resident buffer supply queue entries */ |
| 2185 | cp_entry = fore200e->virt_base + |
| 2186 | fore200e->bus->read(&fore200e->cp_queues->cp_bsq[ scheme ][ magn ]); |
| 2187 | |
| 2188 | /* fill the host resident and cp resident buffer supply queue entries */ |
| 2189 | for (i = 0; i < QUEUE_SIZE_BS; i++) { |
| 2190 | |
| 2191 | bsq->host_entry[ i ].status = |
| 2192 | FORE200E_INDEX(bsq->status.align_addr, enum status, i); |
| 2193 | bsq->host_entry[ i ].rbd_block = |
| 2194 | FORE200E_INDEX(bsq->rbd_block.align_addr, struct rbd_block, i); |
| 2195 | bsq->host_entry[ i ].rbd_block_dma = |
| 2196 | FORE200E_DMA_INDEX(bsq->rbd_block.dma_addr, struct rbd_block, i); |
| 2197 | bsq->host_entry[ i ].cp_entry = &cp_entry[ i ]; |
| 2198 | |
| 2199 | *bsq->host_entry[ i ].status = STATUS_FREE; |
| 2200 | |
| 2201 | fore200e->bus->write(FORE200E_DMA_INDEX(bsq->status.dma_addr, enum status, i), |
| 2202 | &cp_entry[ i ].status_haddr); |
| 2203 | } |
| 2204 | } |
| 2205 | } |
| 2206 | |
| 2207 | fore200e->state = FORE200E_STATE_INIT_BSQ; |
| 2208 | return 0; |
| 2209 | } |
| 2210 | |
| 2211 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2212 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2213 | fore200e_init_rx_queue(struct fore200e* fore200e) |
| 2214 | { |
| 2215 | struct host_rxq* rxq = &fore200e->host_rxq; |
| 2216 | struct cp_rxq_entry __iomem * cp_entry; |
| 2217 | int i; |
| 2218 | |
| 2219 | DPRINTK(2, "receive queue is being initialized\n"); |
| 2220 | |
| 2221 | /* allocate and align the array of status words */ |
| 2222 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2223 | &rxq->status, |
| 2224 | sizeof(enum status), |
| 2225 | QUEUE_SIZE_RX, |
| 2226 | fore200e->bus->status_alignment) < 0) { |
| 2227 | return -ENOMEM; |
| 2228 | } |
| 2229 | |
| 2230 | /* allocate and align the array of receive PDU descriptors */ |
| 2231 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2232 | &rxq->rpd, |
| 2233 | sizeof(struct rpd), |
| 2234 | QUEUE_SIZE_RX, |
| 2235 | fore200e->bus->descr_alignment) < 0) { |
| 2236 | |
| 2237 | fore200e->bus->dma_chunk_free(fore200e, &rxq->status); |
| 2238 | return -ENOMEM; |
| 2239 | } |
| 2240 | |
| 2241 | /* get the base address of the cp resident rx queue entries */ |
| 2242 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_rxq); |
| 2243 | |
| 2244 | /* fill the host resident and cp resident rx entries */ |
| 2245 | for (i=0; i < QUEUE_SIZE_RX; i++) { |
| 2246 | |
| 2247 | rxq->host_entry[ i ].status = |
| 2248 | FORE200E_INDEX(rxq->status.align_addr, enum status, i); |
| 2249 | rxq->host_entry[ i ].rpd = |
| 2250 | FORE200E_INDEX(rxq->rpd.align_addr, struct rpd, i); |
| 2251 | rxq->host_entry[ i ].rpd_dma = |
| 2252 | FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i); |
| 2253 | rxq->host_entry[ i ].cp_entry = &cp_entry[ i ]; |
| 2254 | |
| 2255 | *rxq->host_entry[ i ].status = STATUS_FREE; |
| 2256 | |
| 2257 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->status.dma_addr, enum status, i), |
| 2258 | &cp_entry[ i ].status_haddr); |
| 2259 | |
| 2260 | fore200e->bus->write(FORE200E_DMA_INDEX(rxq->rpd.dma_addr, struct rpd, i), |
| 2261 | &cp_entry[ i ].rpd_haddr); |
| 2262 | } |
| 2263 | |
| 2264 | /* set the head entry of the queue */ |
| 2265 | rxq->head = 0; |
| 2266 | |
| 2267 | fore200e->state = FORE200E_STATE_INIT_RXQ; |
| 2268 | return 0; |
| 2269 | } |
| 2270 | |
| 2271 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2272 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | fore200e_init_tx_queue(struct fore200e* fore200e) |
| 2274 | { |
| 2275 | struct host_txq* txq = &fore200e->host_txq; |
| 2276 | struct cp_txq_entry __iomem * cp_entry; |
| 2277 | int i; |
| 2278 | |
| 2279 | DPRINTK(2, "transmit queue is being initialized\n"); |
| 2280 | |
| 2281 | /* allocate and align the array of status words */ |
| 2282 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2283 | &txq->status, |
| 2284 | sizeof(enum status), |
| 2285 | QUEUE_SIZE_TX, |
| 2286 | fore200e->bus->status_alignment) < 0) { |
| 2287 | return -ENOMEM; |
| 2288 | } |
| 2289 | |
| 2290 | /* allocate and align the array of transmit PDU descriptors */ |
| 2291 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2292 | &txq->tpd, |
| 2293 | sizeof(struct tpd), |
| 2294 | QUEUE_SIZE_TX, |
| 2295 | fore200e->bus->descr_alignment) < 0) { |
| 2296 | |
| 2297 | fore200e->bus->dma_chunk_free(fore200e, &txq->status); |
| 2298 | return -ENOMEM; |
| 2299 | } |
| 2300 | |
| 2301 | /* get the base address of the cp resident tx queue entries */ |
| 2302 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_txq); |
| 2303 | |
| 2304 | /* fill the host resident and cp resident tx entries */ |
| 2305 | for (i=0; i < QUEUE_SIZE_TX; i++) { |
| 2306 | |
| 2307 | txq->host_entry[ i ].status = |
| 2308 | FORE200E_INDEX(txq->status.align_addr, enum status, i); |
| 2309 | txq->host_entry[ i ].tpd = |
| 2310 | FORE200E_INDEX(txq->tpd.align_addr, struct tpd, i); |
| 2311 | txq->host_entry[ i ].tpd_dma = |
| 2312 | FORE200E_DMA_INDEX(txq->tpd.dma_addr, struct tpd, i); |
| 2313 | txq->host_entry[ i ].cp_entry = &cp_entry[ i ]; |
| 2314 | |
| 2315 | *txq->host_entry[ i ].status = STATUS_FREE; |
| 2316 | |
| 2317 | fore200e->bus->write(FORE200E_DMA_INDEX(txq->status.dma_addr, enum status, i), |
| 2318 | &cp_entry[ i ].status_haddr); |
| 2319 | |
| 2320 | /* although there is a one-to-one mapping of tx queue entries and tpds, |
| 2321 | we do not write here the DMA (physical) base address of each tpd into |
| 2322 | the related cp resident entry, because the cp relies on this write |
| 2323 | operation to detect that a new pdu has been submitted for tx */ |
| 2324 | } |
| 2325 | |
| 2326 | /* set the head and tail entries of the queue */ |
| 2327 | txq->head = 0; |
| 2328 | txq->tail = 0; |
| 2329 | |
| 2330 | fore200e->state = FORE200E_STATE_INIT_TXQ; |
| 2331 | return 0; |
| 2332 | } |
| 2333 | |
| 2334 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2335 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2336 | fore200e_init_cmd_queue(struct fore200e* fore200e) |
| 2337 | { |
| 2338 | struct host_cmdq* cmdq = &fore200e->host_cmdq; |
| 2339 | struct cp_cmdq_entry __iomem * cp_entry; |
| 2340 | int i; |
| 2341 | |
| 2342 | DPRINTK(2, "command queue is being initialized\n"); |
| 2343 | |
| 2344 | /* allocate and align the array of status words */ |
| 2345 | if (fore200e->bus->dma_chunk_alloc(fore200e, |
| 2346 | &cmdq->status, |
| 2347 | sizeof(enum status), |
| 2348 | QUEUE_SIZE_CMD, |
| 2349 | fore200e->bus->status_alignment) < 0) { |
| 2350 | return -ENOMEM; |
| 2351 | } |
| 2352 | |
| 2353 | /* get the base address of the cp resident cmd queue entries */ |
| 2354 | cp_entry = fore200e->virt_base + fore200e->bus->read(&fore200e->cp_queues->cp_cmdq); |
| 2355 | |
| 2356 | /* fill the host resident and cp resident cmd entries */ |
| 2357 | for (i=0; i < QUEUE_SIZE_CMD; i++) { |
| 2358 | |
| 2359 | cmdq->host_entry[ i ].status = |
| 2360 | FORE200E_INDEX(cmdq->status.align_addr, enum status, i); |
| 2361 | cmdq->host_entry[ i ].cp_entry = &cp_entry[ i ]; |
| 2362 | |
| 2363 | *cmdq->host_entry[ i ].status = STATUS_FREE; |
| 2364 | |
| 2365 | fore200e->bus->write(FORE200E_DMA_INDEX(cmdq->status.dma_addr, enum status, i), |
| 2366 | &cp_entry[ i ].status_haddr); |
| 2367 | } |
| 2368 | |
| 2369 | /* set the head entry of the queue */ |
| 2370 | cmdq->head = 0; |
| 2371 | |
| 2372 | fore200e->state = FORE200E_STATE_INIT_CMDQ; |
| 2373 | return 0; |
| 2374 | } |
| 2375 | |
| 2376 | |
Adrian Bunk | 8aee929 | 2007-08-10 15:14:18 -0700 | [diff] [blame] | 2377 | static void __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2378 | fore200e_param_bs_queue(struct fore200e* fore200e, |
| 2379 | enum buffer_scheme scheme, enum buffer_magn magn, |
| 2380 | int queue_length, int pool_size, int supply_blksize) |
| 2381 | { |
| 2382 | struct bs_spec __iomem * bs_spec = &fore200e->cp_queues->init.bs_spec[ scheme ][ magn ]; |
| 2383 | |
| 2384 | fore200e->bus->write(queue_length, &bs_spec->queue_length); |
| 2385 | fore200e->bus->write(fore200e_rx_buf_size[ scheme ][ magn ], &bs_spec->buffer_size); |
| 2386 | fore200e->bus->write(pool_size, &bs_spec->pool_size); |
| 2387 | fore200e->bus->write(supply_blksize, &bs_spec->supply_blksize); |
| 2388 | } |
| 2389 | |
| 2390 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2391 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | fore200e_initialize(struct fore200e* fore200e) |
| 2393 | { |
| 2394 | struct cp_queues __iomem * cpq; |
| 2395 | int ok, scheme, magn; |
| 2396 | |
| 2397 | DPRINTK(2, "device %s being initialized\n", fore200e->name); |
| 2398 | |
Matthias Kaehlcke | bfbf3c0 | 2007-04-26 01:41:49 -0700 | [diff] [blame] | 2399 | mutex_init(&fore200e->rate_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | spin_lock_init(&fore200e->q_lock); |
| 2401 | |
| 2402 | cpq = fore200e->cp_queues = fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET; |
| 2403 | |
| 2404 | /* enable cp to host interrupts */ |
| 2405 | fore200e->bus->write(1, &cpq->imask); |
| 2406 | |
| 2407 | if (fore200e->bus->irq_enable) |
| 2408 | fore200e->bus->irq_enable(fore200e); |
| 2409 | |
| 2410 | fore200e->bus->write(NBR_CONNECT, &cpq->init.num_connect); |
| 2411 | |
| 2412 | fore200e->bus->write(QUEUE_SIZE_CMD, &cpq->init.cmd_queue_len); |
| 2413 | fore200e->bus->write(QUEUE_SIZE_RX, &cpq->init.rx_queue_len); |
| 2414 | fore200e->bus->write(QUEUE_SIZE_TX, &cpq->init.tx_queue_len); |
| 2415 | |
| 2416 | fore200e->bus->write(RSD_EXTENSION, &cpq->init.rsd_extension); |
| 2417 | fore200e->bus->write(TSD_EXTENSION, &cpq->init.tsd_extension); |
| 2418 | |
| 2419 | for (scheme = 0; scheme < BUFFER_SCHEME_NBR; scheme++) |
| 2420 | for (magn = 0; magn < BUFFER_MAGN_NBR; magn++) |
| 2421 | fore200e_param_bs_queue(fore200e, scheme, magn, |
| 2422 | QUEUE_SIZE_BS, |
| 2423 | fore200e_rx_buf_nbr[ scheme ][ magn ], |
| 2424 | RBD_BLK_SIZE); |
| 2425 | |
| 2426 | /* issue the initialize command */ |
| 2427 | fore200e->bus->write(STATUS_PENDING, &cpq->init.status); |
| 2428 | fore200e->bus->write(OPCODE_INITIALIZE, &cpq->init.opcode); |
| 2429 | |
| 2430 | ok = fore200e_io_poll(fore200e, &cpq->init.status, STATUS_COMPLETE, 3000); |
| 2431 | if (ok == 0) { |
| 2432 | printk(FORE200E "device %s initialization failed\n", fore200e->name); |
| 2433 | return -ENODEV; |
| 2434 | } |
| 2435 | |
| 2436 | printk(FORE200E "device %s initialized\n", fore200e->name); |
| 2437 | |
| 2438 | fore200e->state = FORE200E_STATE_INITIALIZE; |
| 2439 | return 0; |
| 2440 | } |
| 2441 | |
| 2442 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2443 | static void __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2444 | fore200e_monitor_putc(struct fore200e* fore200e, char c) |
| 2445 | { |
| 2446 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; |
| 2447 | |
| 2448 | #if 0 |
| 2449 | printk("%c", c); |
| 2450 | #endif |
| 2451 | fore200e->bus->write(((u32) c) | FORE200E_CP_MONITOR_UART_AVAIL, &monitor->soft_uart.send); |
| 2452 | } |
| 2453 | |
| 2454 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2455 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2456 | fore200e_monitor_getc(struct fore200e* fore200e) |
| 2457 | { |
| 2458 | struct cp_monitor __iomem * monitor = fore200e->cp_monitor; |
| 2459 | unsigned long timeout = jiffies + msecs_to_jiffies(50); |
| 2460 | int c; |
| 2461 | |
| 2462 | while (time_before(jiffies, timeout)) { |
| 2463 | |
| 2464 | c = (int) fore200e->bus->read(&monitor->soft_uart.recv); |
| 2465 | |
| 2466 | if (c & FORE200E_CP_MONITOR_UART_AVAIL) { |
| 2467 | |
| 2468 | fore200e->bus->write(FORE200E_CP_MONITOR_UART_FREE, &monitor->soft_uart.recv); |
| 2469 | #if 0 |
| 2470 | printk("%c", c & 0xFF); |
| 2471 | #endif |
| 2472 | return c & 0xFF; |
| 2473 | } |
| 2474 | } |
| 2475 | |
| 2476 | return -1; |
| 2477 | } |
| 2478 | |
| 2479 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2480 | static void __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2481 | fore200e_monitor_puts(struct fore200e* fore200e, char* str) |
| 2482 | { |
| 2483 | while (*str) { |
| 2484 | |
| 2485 | /* the i960 monitor doesn't accept any new character if it has something to say */ |
| 2486 | while (fore200e_monitor_getc(fore200e) >= 0); |
| 2487 | |
| 2488 | fore200e_monitor_putc(fore200e, *str++); |
| 2489 | } |
| 2490 | |
| 2491 | while (fore200e_monitor_getc(fore200e) >= 0); |
| 2492 | } |
| 2493 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2494 | #ifdef __LITTLE_ENDIAN |
| 2495 | #define FW_EXT ".bin" |
| 2496 | #else |
| 2497 | #define FW_EXT "_ecd.bin2" |
| 2498 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2499 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2500 | static int __devinit |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2501 | fore200e_load_and_start_fw(struct fore200e* fore200e) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2502 | { |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2503 | const struct firmware *firmware; |
| 2504 | struct device *device; |
| 2505 | struct fw_header *fw_header; |
Chas Williams | 6f75a9b | 2008-07-23 20:29:21 -0700 | [diff] [blame] | 2506 | const __le32 *fw_data; |
| 2507 | u32 fw_size; |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2508 | u32 __iomem *load_addr; |
| 2509 | char buf[48]; |
| 2510 | int err = -ENODEV; |
| 2511 | |
| 2512 | if (strcmp(fore200e->bus->model_name, "PCA-200E") == 0) |
| 2513 | device = &((struct pci_dev *) fore200e->bus_dev)->dev; |
| 2514 | #ifdef CONFIG_SBUS |
| 2515 | else if (strcmp(fore200e->bus->model_name, "SBA-200E") == 0) |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2516 | device = &((struct of_device *) fore200e->bus_dev)->dev; |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2517 | #endif |
| 2518 | else |
| 2519 | return err; |
| 2520 | |
| 2521 | sprintf(buf, "%s%s", fore200e->bus->proc_name, FW_EXT); |
Meelis Roos | fcffd0d | 2009-02-10 17:19:19 -0800 | [diff] [blame] | 2522 | if ((err = request_firmware(&firmware, buf, device)) < 0) { |
| 2523 | printk(FORE200E "problem loading firmware image %s\n", fore200e->bus->model_name); |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2524 | return err; |
| 2525 | } |
| 2526 | |
Chas Williams | 6f75a9b | 2008-07-23 20:29:21 -0700 | [diff] [blame] | 2527 | fw_data = (__le32 *) firmware->data; |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2528 | fw_size = firmware->size / sizeof(u32); |
| 2529 | fw_header = (struct fw_header *) firmware->data; |
| 2530 | load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset); |
| 2531 | |
| 2532 | DPRINTK(2, "device %s firmware being loaded at 0x%p (%d words)\n", |
| 2533 | fore200e->name, load_addr, fw_size); |
| 2534 | |
| 2535 | if (le32_to_cpu(fw_header->magic) != FW_HEADER_MAGIC) { |
| 2536 | printk(FORE200E "corrupted %s firmware image\n", fore200e->bus->model_name); |
| 2537 | goto release; |
| 2538 | } |
| 2539 | |
| 2540 | for (; fw_size--; fw_data++, load_addr++) |
| 2541 | fore200e->bus->write(le32_to_cpu(*fw_data), load_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2542 | |
| 2543 | DPRINTK(2, "device %s firmware being started\n", fore200e->name); |
| 2544 | |
| 2545 | #if defined(__sparc_v9__) |
| 2546 | /* reported to be required by SBA cards on some sparc64 hosts */ |
| 2547 | fore200e_spin(100); |
| 2548 | #endif |
| 2549 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2550 | sprintf(buf, "\rgo %x\r", le32_to_cpu(fw_header->start_offset)); |
| 2551 | fore200e_monitor_puts(fore200e, buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2552 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2553 | if (fore200e_io_poll(fore200e, &fore200e->cp_monitor->bstat, BSTAT_CP_RUNNING, 1000) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2554 | printk(FORE200E "device %s firmware didn't start\n", fore200e->name); |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2555 | goto release; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2556 | } |
| 2557 | |
| 2558 | printk(FORE200E "device %s firmware started\n", fore200e->name); |
| 2559 | |
| 2560 | fore200e->state = FORE200E_STATE_START_FW; |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2561 | err = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2562 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2563 | release: |
| 2564 | release_firmware(firmware); |
| 2565 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2566 | } |
| 2567 | |
| 2568 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2569 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | fore200e_register(struct fore200e* fore200e) |
| 2571 | { |
| 2572 | struct atm_dev* atm_dev; |
| 2573 | |
| 2574 | DPRINTK(2, "device %s being registered\n", fore200e->name); |
| 2575 | |
| 2576 | atm_dev = atm_dev_register(fore200e->bus->proc_name, &fore200e_ops, -1, |
| 2577 | NULL); |
| 2578 | if (atm_dev == NULL) { |
| 2579 | printk(FORE200E "unable to register device %s\n", fore200e->name); |
| 2580 | return -ENODEV; |
| 2581 | } |
| 2582 | |
| 2583 | atm_dev->dev_data = fore200e; |
| 2584 | fore200e->atm_dev = atm_dev; |
| 2585 | |
| 2586 | atm_dev->ci_range.vpi_bits = FORE200E_VPI_BITS; |
| 2587 | atm_dev->ci_range.vci_bits = FORE200E_VCI_BITS; |
| 2588 | |
| 2589 | fore200e->available_cell_rate = ATM_OC3_PCR; |
| 2590 | |
| 2591 | fore200e->state = FORE200E_STATE_REGISTER; |
| 2592 | return 0; |
| 2593 | } |
| 2594 | |
| 2595 | |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2596 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2597 | fore200e_init(struct fore200e* fore200e) |
| 2598 | { |
| 2599 | if (fore200e_register(fore200e) < 0) |
| 2600 | return -ENODEV; |
| 2601 | |
| 2602 | if (fore200e->bus->configure(fore200e) < 0) |
| 2603 | return -ENODEV; |
| 2604 | |
| 2605 | if (fore200e->bus->map(fore200e) < 0) |
| 2606 | return -ENODEV; |
| 2607 | |
| 2608 | if (fore200e_reset(fore200e, 1) < 0) |
| 2609 | return -ENODEV; |
| 2610 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2611 | if (fore200e_load_and_start_fw(fore200e) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2612 | return -ENODEV; |
| 2613 | |
| 2614 | if (fore200e_initialize(fore200e) < 0) |
| 2615 | return -ENODEV; |
| 2616 | |
| 2617 | if (fore200e_init_cmd_queue(fore200e) < 0) |
| 2618 | return -ENOMEM; |
| 2619 | |
| 2620 | if (fore200e_init_tx_queue(fore200e) < 0) |
| 2621 | return -ENOMEM; |
| 2622 | |
| 2623 | if (fore200e_init_rx_queue(fore200e) < 0) |
| 2624 | return -ENOMEM; |
| 2625 | |
| 2626 | if (fore200e_init_bs_queue(fore200e) < 0) |
| 2627 | return -ENOMEM; |
| 2628 | |
| 2629 | if (fore200e_alloc_rx_buf(fore200e) < 0) |
| 2630 | return -ENOMEM; |
| 2631 | |
| 2632 | if (fore200e_get_esi(fore200e) < 0) |
| 2633 | return -EIO; |
| 2634 | |
| 2635 | if (fore200e_irq_request(fore200e) < 0) |
| 2636 | return -EBUSY; |
| 2637 | |
| 2638 | fore200e_supply(fore200e); |
Sam Ravnborg | c027f5f | 2006-03-03 17:50:37 -0800 | [diff] [blame] | 2639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2640 | /* all done, board initialization is now complete */ |
| 2641 | fore200e->state = FORE200E_STATE_COMPLETE; |
| 2642 | return 0; |
| 2643 | } |
| 2644 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2645 | #ifdef CONFIG_SBUS |
| 2646 | static int __devinit fore200e_sba_probe(struct of_device *op, |
| 2647 | const struct of_device_id *match) |
| 2648 | { |
| 2649 | const struct fore200e_bus *bus = match->data; |
| 2650 | struct fore200e *fore200e; |
| 2651 | static int index = 0; |
| 2652 | int err; |
| 2653 | |
| 2654 | fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL); |
| 2655 | if (!fore200e) |
| 2656 | return -ENOMEM; |
| 2657 | |
| 2658 | fore200e->bus = bus; |
| 2659 | fore200e->bus_dev = op; |
Grant Likely | 1636f8a | 2010-06-18 11:09:58 -0600 | [diff] [blame] | 2660 | fore200e->irq = op->archdata.irqs[0]; |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2661 | fore200e->phys_base = op->resource[0].start; |
| 2662 | |
| 2663 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); |
| 2664 | |
| 2665 | err = fore200e_init(fore200e); |
| 2666 | if (err < 0) { |
| 2667 | fore200e_shutdown(fore200e); |
| 2668 | kfree(fore200e); |
| 2669 | return err; |
| 2670 | } |
| 2671 | |
| 2672 | index++; |
| 2673 | dev_set_drvdata(&op->dev, fore200e); |
| 2674 | |
| 2675 | return 0; |
| 2676 | } |
| 2677 | |
| 2678 | static int __devexit fore200e_sba_remove(struct of_device *op) |
| 2679 | { |
| 2680 | struct fore200e *fore200e = dev_get_drvdata(&op->dev); |
| 2681 | |
| 2682 | fore200e_shutdown(fore200e); |
| 2683 | kfree(fore200e); |
| 2684 | |
| 2685 | return 0; |
| 2686 | } |
| 2687 | |
David S. Miller | fd09831 | 2008-08-31 01:23:17 -0700 | [diff] [blame] | 2688 | static const struct of_device_id fore200e_sba_match[] = { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2689 | { |
| 2690 | .name = SBA200E_PROM_NAME, |
| 2691 | .data = (void *) &fore200e_bus[1], |
| 2692 | }, |
| 2693 | {}, |
| 2694 | }; |
| 2695 | MODULE_DEVICE_TABLE(of, fore200e_sba_match); |
| 2696 | |
| 2697 | static struct of_platform_driver fore200e_sba_driver = { |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 2698 | .driver = { |
| 2699 | .name = "fore_200e", |
| 2700 | .owner = THIS_MODULE, |
| 2701 | .of_match_table = fore200e_sba_match, |
| 2702 | }, |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2703 | .probe = fore200e_sba_probe, |
| 2704 | .remove = __devexit_p(fore200e_sba_remove), |
| 2705 | }; |
| 2706 | #endif |
| 2707 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2708 | #ifdef CONFIG_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2709 | static int __devinit |
| 2710 | fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) |
| 2711 | { |
| 2712 | const struct fore200e_bus* bus = (struct fore200e_bus*) pci_ent->driver_data; |
| 2713 | struct fore200e* fore200e; |
| 2714 | int err = 0; |
| 2715 | static int index = 0; |
| 2716 | |
| 2717 | if (pci_enable_device(pci_dev)) { |
| 2718 | err = -EINVAL; |
| 2719 | goto out; |
| 2720 | } |
| 2721 | |
Adrian Bunk | 1f8a5fb | 2006-12-19 19:36:32 -0800 | [diff] [blame] | 2722 | fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | if (fore200e == NULL) { |
| 2724 | err = -ENOMEM; |
| 2725 | goto out_disable; |
| 2726 | } |
| 2727 | |
| 2728 | fore200e->bus = bus; |
| 2729 | fore200e->bus_dev = pci_dev; |
| 2730 | fore200e->irq = pci_dev->irq; |
| 2731 | fore200e->phys_base = pci_resource_start(pci_dev, 0); |
| 2732 | |
| 2733 | sprintf(fore200e->name, "%s-%d", bus->model_name, index - 1); |
| 2734 | |
| 2735 | pci_set_master(pci_dev); |
| 2736 | |
| 2737 | printk(FORE200E "device %s found at 0x%lx, IRQ %s\n", |
| 2738 | fore200e->bus->model_name, |
| 2739 | fore200e->phys_base, fore200e_irq_itoa(fore200e->irq)); |
| 2740 | |
| 2741 | sprintf(fore200e->name, "%s-%d", bus->model_name, index); |
| 2742 | |
| 2743 | err = fore200e_init(fore200e); |
| 2744 | if (err < 0) { |
| 2745 | fore200e_shutdown(fore200e); |
| 2746 | goto out_free; |
| 2747 | } |
| 2748 | |
| 2749 | ++index; |
| 2750 | pci_set_drvdata(pci_dev, fore200e); |
| 2751 | |
| 2752 | out: |
| 2753 | return err; |
| 2754 | |
| 2755 | out_free: |
| 2756 | kfree(fore200e); |
| 2757 | out_disable: |
| 2758 | pci_disable_device(pci_dev); |
| 2759 | goto out; |
| 2760 | } |
| 2761 | |
| 2762 | |
| 2763 | static void __devexit fore200e_pca_remove_one(struct pci_dev *pci_dev) |
| 2764 | { |
| 2765 | struct fore200e *fore200e; |
| 2766 | |
| 2767 | fore200e = pci_get_drvdata(pci_dev); |
| 2768 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2769 | fore200e_shutdown(fore200e); |
| 2770 | kfree(fore200e); |
| 2771 | pci_disable_device(pci_dev); |
| 2772 | } |
| 2773 | |
| 2774 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2775 | static struct pci_device_id fore200e_pca_tbl[] = { |
| 2776 | { PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID, |
| 2777 | 0, 0, (unsigned long) &fore200e_bus[0] }, |
| 2778 | { 0, } |
| 2779 | }; |
| 2780 | |
| 2781 | MODULE_DEVICE_TABLE(pci, fore200e_pca_tbl); |
| 2782 | |
| 2783 | static struct pci_driver fore200e_pca_driver = { |
| 2784 | .name = "fore_200e", |
| 2785 | .probe = fore200e_pca_detect, |
| 2786 | .remove = __devexit_p(fore200e_pca_remove_one), |
| 2787 | .id_table = fore200e_pca_tbl, |
| 2788 | }; |
| 2789 | #endif |
| 2790 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2791 | static int __init fore200e_module_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2792 | { |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2793 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2794 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2795 | printk(FORE200E "FORE Systems 200E-series ATM driver - version " FORE200E_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2796 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2797 | #ifdef CONFIG_SBUS |
Grant Likely | 1ab1d63 | 2010-06-24 15:14:37 -0600 | [diff] [blame^] | 2798 | err = of_register_platform_driver(&fore200e_sba_driver); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2799 | if (err) |
| 2800 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2801 | #endif |
| 2802 | |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 2803 | #ifdef CONFIG_PCI |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2804 | err = pci_register_driver(&fore200e_pca_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | #endif |
| 2806 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2807 | #ifdef CONFIG_SBUS |
| 2808 | if (err) |
Grant Likely | 1ab1d63 | 2010-06-24 15:14:37 -0600 | [diff] [blame^] | 2809 | of_unregister_platform_driver(&fore200e_sba_driver); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2810 | #endif |
| 2811 | |
| 2812 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2813 | } |
| 2814 | |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2815 | static void __exit fore200e_module_cleanup(void) |
| 2816 | { |
| 2817 | #ifdef CONFIG_PCI |
| 2818 | pci_unregister_driver(&fore200e_pca_driver); |
| 2819 | #endif |
| 2820 | #ifdef CONFIG_SBUS |
Grant Likely | 1ab1d63 | 2010-06-24 15:14:37 -0600 | [diff] [blame^] | 2821 | of_unregister_platform_driver(&fore200e_sba_driver); |
David S. Miller | 826b6cf | 2008-08-27 01:06:07 -0700 | [diff] [blame] | 2822 | #endif |
| 2823 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2824 | |
| 2825 | static int |
| 2826 | fore200e_proc_read(struct atm_dev *dev, loff_t* pos, char* page) |
| 2827 | { |
| 2828 | struct fore200e* fore200e = FORE200E_DEV(dev); |
| 2829 | struct fore200e_vcc* fore200e_vcc; |
| 2830 | struct atm_vcc* vcc; |
| 2831 | int i, len, left = *pos; |
| 2832 | unsigned long flags; |
| 2833 | |
| 2834 | if (!left--) { |
| 2835 | |
| 2836 | if (fore200e_getstats(fore200e) < 0) |
| 2837 | return -EIO; |
| 2838 | |
| 2839 | len = sprintf(page,"\n" |
| 2840 | " device:\n" |
| 2841 | " internal name:\t\t%s\n", fore200e->name); |
| 2842 | |
| 2843 | /* print bus-specific information */ |
| 2844 | if (fore200e->bus->proc_read) |
| 2845 | len += fore200e->bus->proc_read(fore200e, page + len); |
| 2846 | |
| 2847 | len += sprintf(page + len, |
| 2848 | " interrupt line:\t\t%s\n" |
| 2849 | " physical base address:\t0x%p\n" |
| 2850 | " virtual base address:\t0x%p\n" |
hartleys | 3008ab3 | 2010-01-05 06:22:20 +0000 | [diff] [blame] | 2851 | " factory address (ESI):\t%pM\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2852 | " board serial number:\t\t%d\n\n", |
| 2853 | fore200e_irq_itoa(fore200e->irq), |
| 2854 | (void*)fore200e->phys_base, |
| 2855 | fore200e->virt_base, |
hartleys | 3008ab3 | 2010-01-05 06:22:20 +0000 | [diff] [blame] | 2856 | fore200e->esi, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2857 | fore200e->esi[4] * 256 + fore200e->esi[5]); |
| 2858 | |
| 2859 | return len; |
| 2860 | } |
| 2861 | |
| 2862 | if (!left--) |
| 2863 | return sprintf(page, |
| 2864 | " free small bufs, scheme 1:\t%d\n" |
| 2865 | " free large bufs, scheme 1:\t%d\n" |
| 2866 | " free small bufs, scheme 2:\t%d\n" |
| 2867 | " free large bufs, scheme 2:\t%d\n", |
| 2868 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_SMALL ].freebuf_count, |
| 2869 | fore200e->host_bsq[ BUFFER_SCHEME_ONE ][ BUFFER_MAGN_LARGE ].freebuf_count, |
| 2870 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_SMALL ].freebuf_count, |
| 2871 | fore200e->host_bsq[ BUFFER_SCHEME_TWO ][ BUFFER_MAGN_LARGE ].freebuf_count); |
| 2872 | |
| 2873 | if (!left--) { |
| 2874 | u32 hb = fore200e->bus->read(&fore200e->cp_queues->heartbeat); |
| 2875 | |
| 2876 | len = sprintf(page,"\n\n" |
| 2877 | " cell processor:\n" |
| 2878 | " heartbeat state:\t\t"); |
| 2879 | |
| 2880 | if (hb >> 16 != 0xDEAD) |
| 2881 | len += sprintf(page + len, "0x%08x\n", hb); |
| 2882 | else |
| 2883 | len += sprintf(page + len, "*** FATAL ERROR %04x ***\n", hb & 0xFFFF); |
| 2884 | |
| 2885 | return len; |
| 2886 | } |
| 2887 | |
| 2888 | if (!left--) { |
| 2889 | static const char* media_name[] = { |
| 2890 | "unshielded twisted pair", |
| 2891 | "multimode optical fiber ST", |
| 2892 | "multimode optical fiber SC", |
| 2893 | "single-mode optical fiber ST", |
| 2894 | "single-mode optical fiber SC", |
| 2895 | "unknown" |
| 2896 | }; |
| 2897 | |
| 2898 | static const char* oc3_mode[] = { |
| 2899 | "normal operation", |
| 2900 | "diagnostic loopback", |
| 2901 | "line loopback", |
| 2902 | "unknown" |
| 2903 | }; |
| 2904 | |
| 2905 | u32 fw_release = fore200e->bus->read(&fore200e->cp_queues->fw_release); |
| 2906 | u32 mon960_release = fore200e->bus->read(&fore200e->cp_queues->mon960_release); |
| 2907 | u32 oc3_revision = fore200e->bus->read(&fore200e->cp_queues->oc3_revision); |
| 2908 | u32 media_index = FORE200E_MEDIA_INDEX(fore200e->bus->read(&fore200e->cp_queues->media_type)); |
| 2909 | u32 oc3_index; |
| 2910 | |
roel kluin | e0c5567 | 2009-10-23 06:09:55 +0000 | [diff] [blame] | 2911 | if (media_index > 4) |
| 2912 | media_index = 5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2913 | |
| 2914 | switch (fore200e->loop_mode) { |
| 2915 | case ATM_LM_NONE: oc3_index = 0; |
| 2916 | break; |
| 2917 | case ATM_LM_LOC_PHY: oc3_index = 1; |
| 2918 | break; |
| 2919 | case ATM_LM_RMT_PHY: oc3_index = 2; |
| 2920 | break; |
| 2921 | default: oc3_index = 3; |
| 2922 | } |
| 2923 | |
| 2924 | return sprintf(page, |
| 2925 | " firmware release:\t\t%d.%d.%d\n" |
| 2926 | " monitor release:\t\t%d.%d\n" |
| 2927 | " media type:\t\t\t%s\n" |
| 2928 | " OC-3 revision:\t\t0x%x\n" |
| 2929 | " OC-3 mode:\t\t\t%s", |
| 2930 | fw_release >> 16, fw_release << 16 >> 24, fw_release << 24 >> 24, |
| 2931 | mon960_release >> 16, mon960_release << 16 >> 16, |
| 2932 | media_name[ media_index ], |
| 2933 | oc3_revision, |
| 2934 | oc3_mode[ oc3_index ]); |
| 2935 | } |
| 2936 | |
| 2937 | if (!left--) { |
| 2938 | struct cp_monitor __iomem * cp_monitor = fore200e->cp_monitor; |
| 2939 | |
| 2940 | return sprintf(page, |
| 2941 | "\n\n" |
| 2942 | " monitor:\n" |
| 2943 | " version number:\t\t%d\n" |
| 2944 | " boot status word:\t\t0x%08x\n", |
| 2945 | fore200e->bus->read(&cp_monitor->mon_version), |
| 2946 | fore200e->bus->read(&cp_monitor->bstat)); |
| 2947 | } |
| 2948 | |
| 2949 | if (!left--) |
| 2950 | return sprintf(page, |
| 2951 | "\n" |
| 2952 | " device statistics:\n" |
| 2953 | " 4b5b:\n" |
| 2954 | " crc_header_errors:\t\t%10u\n" |
| 2955 | " framing_errors:\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 2956 | be32_to_cpu(fore200e->stats->phy.crc_header_errors), |
| 2957 | be32_to_cpu(fore200e->stats->phy.framing_errors)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2958 | |
| 2959 | if (!left--) |
| 2960 | return sprintf(page, "\n" |
| 2961 | " OC-3:\n" |
| 2962 | " section_bip8_errors:\t%10u\n" |
| 2963 | " path_bip8_errors:\t\t%10u\n" |
| 2964 | " line_bip24_errors:\t\t%10u\n" |
| 2965 | " line_febe_errors:\t\t%10u\n" |
| 2966 | " path_febe_errors:\t\t%10u\n" |
| 2967 | " corr_hcs_errors:\t\t%10u\n" |
| 2968 | " ucorr_hcs_errors:\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 2969 | be32_to_cpu(fore200e->stats->oc3.section_bip8_errors), |
| 2970 | be32_to_cpu(fore200e->stats->oc3.path_bip8_errors), |
| 2971 | be32_to_cpu(fore200e->stats->oc3.line_bip24_errors), |
| 2972 | be32_to_cpu(fore200e->stats->oc3.line_febe_errors), |
| 2973 | be32_to_cpu(fore200e->stats->oc3.path_febe_errors), |
| 2974 | be32_to_cpu(fore200e->stats->oc3.corr_hcs_errors), |
| 2975 | be32_to_cpu(fore200e->stats->oc3.ucorr_hcs_errors)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2976 | |
| 2977 | if (!left--) |
| 2978 | return sprintf(page,"\n" |
| 2979 | " ATM:\t\t\t\t cells\n" |
| 2980 | " TX:\t\t\t%10u\n" |
| 2981 | " RX:\t\t\t%10u\n" |
| 2982 | " vpi out of range:\t\t%10u\n" |
| 2983 | " vpi no conn:\t\t%10u\n" |
| 2984 | " vci out of range:\t\t%10u\n" |
| 2985 | " vci no conn:\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 2986 | be32_to_cpu(fore200e->stats->atm.cells_transmitted), |
| 2987 | be32_to_cpu(fore200e->stats->atm.cells_received), |
| 2988 | be32_to_cpu(fore200e->stats->atm.vpi_bad_range), |
| 2989 | be32_to_cpu(fore200e->stats->atm.vpi_no_conn), |
| 2990 | be32_to_cpu(fore200e->stats->atm.vci_bad_range), |
| 2991 | be32_to_cpu(fore200e->stats->atm.vci_no_conn)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2992 | |
| 2993 | if (!left--) |
| 2994 | return sprintf(page,"\n" |
| 2995 | " AAL0:\t\t\t cells\n" |
| 2996 | " TX:\t\t\t%10u\n" |
| 2997 | " RX:\t\t\t%10u\n" |
| 2998 | " dropped:\t\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 2999 | be32_to_cpu(fore200e->stats->aal0.cells_transmitted), |
| 3000 | be32_to_cpu(fore200e->stats->aal0.cells_received), |
| 3001 | be32_to_cpu(fore200e->stats->aal0.cells_dropped)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3002 | |
| 3003 | if (!left--) |
| 3004 | return sprintf(page,"\n" |
| 3005 | " AAL3/4:\n" |
| 3006 | " SAR sublayer:\t\t cells\n" |
| 3007 | " TX:\t\t\t%10u\n" |
| 3008 | " RX:\t\t\t%10u\n" |
| 3009 | " dropped:\t\t\t%10u\n" |
| 3010 | " CRC errors:\t\t%10u\n" |
| 3011 | " protocol errors:\t\t%10u\n\n" |
| 3012 | " CS sublayer:\t\t PDUs\n" |
| 3013 | " TX:\t\t\t%10u\n" |
| 3014 | " RX:\t\t\t%10u\n" |
| 3015 | " dropped:\t\t\t%10u\n" |
| 3016 | " protocol errors:\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 3017 | be32_to_cpu(fore200e->stats->aal34.cells_transmitted), |
| 3018 | be32_to_cpu(fore200e->stats->aal34.cells_received), |
| 3019 | be32_to_cpu(fore200e->stats->aal34.cells_dropped), |
| 3020 | be32_to_cpu(fore200e->stats->aal34.cells_crc_errors), |
| 3021 | be32_to_cpu(fore200e->stats->aal34.cells_protocol_errors), |
| 3022 | be32_to_cpu(fore200e->stats->aal34.cspdus_transmitted), |
| 3023 | be32_to_cpu(fore200e->stats->aal34.cspdus_received), |
| 3024 | be32_to_cpu(fore200e->stats->aal34.cspdus_dropped), |
| 3025 | be32_to_cpu(fore200e->stats->aal34.cspdus_protocol_errors)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3026 | |
| 3027 | if (!left--) |
| 3028 | return sprintf(page,"\n" |
| 3029 | " AAL5:\n" |
| 3030 | " SAR sublayer:\t\t cells\n" |
| 3031 | " TX:\t\t\t%10u\n" |
| 3032 | " RX:\t\t\t%10u\n" |
| 3033 | " dropped:\t\t\t%10u\n" |
| 3034 | " congestions:\t\t%10u\n\n" |
| 3035 | " CS sublayer:\t\t PDUs\n" |
| 3036 | " TX:\t\t\t%10u\n" |
| 3037 | " RX:\t\t\t%10u\n" |
| 3038 | " dropped:\t\t\t%10u\n" |
| 3039 | " CRC errors:\t\t%10u\n" |
| 3040 | " protocol errors:\t\t%10u\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 3041 | be32_to_cpu(fore200e->stats->aal5.cells_transmitted), |
| 3042 | be32_to_cpu(fore200e->stats->aal5.cells_received), |
| 3043 | be32_to_cpu(fore200e->stats->aal5.cells_dropped), |
| 3044 | be32_to_cpu(fore200e->stats->aal5.congestion_experienced), |
| 3045 | be32_to_cpu(fore200e->stats->aal5.cspdus_transmitted), |
| 3046 | be32_to_cpu(fore200e->stats->aal5.cspdus_received), |
| 3047 | be32_to_cpu(fore200e->stats->aal5.cspdus_dropped), |
| 3048 | be32_to_cpu(fore200e->stats->aal5.cspdus_crc_errors), |
| 3049 | be32_to_cpu(fore200e->stats->aal5.cspdus_protocol_errors)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3050 | |
| 3051 | if (!left--) |
| 3052 | return sprintf(page,"\n" |
| 3053 | " AUX:\t\t allocation failures\n" |
| 3054 | " small b1:\t\t\t%10u\n" |
| 3055 | " large b1:\t\t\t%10u\n" |
| 3056 | " small b2:\t\t\t%10u\n" |
| 3057 | " large b2:\t\t\t%10u\n" |
| 3058 | " RX PDUs:\t\t\t%10u\n" |
| 3059 | " TX PDUs:\t\t\t%10lu\n", |
Al Viro | 63734a3 | 2008-03-16 22:23:04 +0000 | [diff] [blame] | 3060 | be32_to_cpu(fore200e->stats->aux.small_b1_failed), |
| 3061 | be32_to_cpu(fore200e->stats->aux.large_b1_failed), |
| 3062 | be32_to_cpu(fore200e->stats->aux.small_b2_failed), |
| 3063 | be32_to_cpu(fore200e->stats->aux.large_b2_failed), |
| 3064 | be32_to_cpu(fore200e->stats->aux.rpd_alloc_failed), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3065 | fore200e->tx_sat); |
| 3066 | |
| 3067 | if (!left--) |
| 3068 | return sprintf(page,"\n" |
| 3069 | " receive carrier:\t\t\t%s\n", |
| 3070 | fore200e->stats->aux.receive_carrier ? "ON" : "OFF!"); |
| 3071 | |
| 3072 | if (!left--) { |
| 3073 | return sprintf(page,"\n" |
| 3074 | " VCCs:\n address VPI VCI AAL " |
| 3075 | "TX PDUs TX min/max size RX PDUs RX min/max size\n"); |
| 3076 | } |
| 3077 | |
| 3078 | for (i = 0; i < NBR_CONNECT; i++) { |
| 3079 | |
| 3080 | vcc = fore200e->vc_map[i].vcc; |
| 3081 | |
| 3082 | if (vcc == NULL) |
| 3083 | continue; |
| 3084 | |
| 3085 | spin_lock_irqsave(&fore200e->q_lock, flags); |
| 3086 | |
| 3087 | if (vcc && test_bit(ATM_VF_READY, &vcc->flags) && !left--) { |
| 3088 | |
| 3089 | fore200e_vcc = FORE200E_VCC(vcc); |
| 3090 | ASSERT(fore200e_vcc); |
| 3091 | |
| 3092 | len = sprintf(page, |
| 3093 | " %08x %03d %05d %1d %09lu %05d/%05d %09lu %05d/%05d\n", |
| 3094 | (u32)(unsigned long)vcc, |
| 3095 | vcc->vpi, vcc->vci, fore200e_atm2fore_aal(vcc->qos.aal), |
| 3096 | fore200e_vcc->tx_pdu, |
| 3097 | fore200e_vcc->tx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->tx_min_pdu, |
| 3098 | fore200e_vcc->tx_max_pdu, |
| 3099 | fore200e_vcc->rx_pdu, |
| 3100 | fore200e_vcc->rx_min_pdu > 0xFFFF ? 0 : fore200e_vcc->rx_min_pdu, |
| 3101 | fore200e_vcc->rx_max_pdu); |
| 3102 | |
| 3103 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 3104 | return len; |
| 3105 | } |
| 3106 | |
| 3107 | spin_unlock_irqrestore(&fore200e->q_lock, flags); |
| 3108 | } |
| 3109 | |
| 3110 | return 0; |
| 3111 | } |
| 3112 | |
| 3113 | module_init(fore200e_module_init); |
| 3114 | module_exit(fore200e_module_cleanup); |
| 3115 | |
| 3116 | |
| 3117 | static const struct atmdev_ops fore200e_ops = |
| 3118 | { |
| 3119 | .open = fore200e_open, |
| 3120 | .close = fore200e_close, |
| 3121 | .ioctl = fore200e_ioctl, |
| 3122 | .getsockopt = fore200e_getsockopt, |
| 3123 | .setsockopt = fore200e_setsockopt, |
| 3124 | .send = fore200e_send, |
| 3125 | .change_qos = fore200e_change_qos, |
| 3126 | .proc_read = fore200e_proc_read, |
| 3127 | .owner = THIS_MODULE |
| 3128 | }; |
| 3129 | |
| 3130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3131 | static const struct fore200e_bus fore200e_bus[] = { |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 3132 | #ifdef CONFIG_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3133 | { "PCA-200E", "pca200e", 32, 4, 32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3134 | fore200e_pca_read, |
| 3135 | fore200e_pca_write, |
| 3136 | fore200e_pca_dma_map, |
| 3137 | fore200e_pca_dma_unmap, |
| 3138 | fore200e_pca_dma_sync_for_cpu, |
| 3139 | fore200e_pca_dma_sync_for_device, |
| 3140 | fore200e_pca_dma_chunk_alloc, |
| 3141 | fore200e_pca_dma_chunk_free, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3142 | fore200e_pca_configure, |
| 3143 | fore200e_pca_map, |
| 3144 | fore200e_pca_reset, |
| 3145 | fore200e_pca_prom_read, |
| 3146 | fore200e_pca_unmap, |
| 3147 | NULL, |
| 3148 | fore200e_pca_irq_check, |
| 3149 | fore200e_pca_irq_ack, |
| 3150 | fore200e_pca_proc_read, |
| 3151 | }, |
| 3152 | #endif |
Chas Williams | e92481f | 2008-06-17 16:23:11 -0700 | [diff] [blame] | 3153 | #ifdef CONFIG_SBUS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3154 | { "SBA-200E", "sba200e", 32, 64, 32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3155 | fore200e_sba_read, |
| 3156 | fore200e_sba_write, |
| 3157 | fore200e_sba_dma_map, |
| 3158 | fore200e_sba_dma_unmap, |
| 3159 | fore200e_sba_dma_sync_for_cpu, |
| 3160 | fore200e_sba_dma_sync_for_device, |
| 3161 | fore200e_sba_dma_chunk_alloc, |
| 3162 | fore200e_sba_dma_chunk_free, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3163 | fore200e_sba_configure, |
| 3164 | fore200e_sba_map, |
| 3165 | fore200e_sba_reset, |
| 3166 | fore200e_sba_prom_read, |
| 3167 | fore200e_sba_unmap, |
| 3168 | fore200e_sba_irq_enable, |
| 3169 | fore200e_sba_irq_check, |
| 3170 | fore200e_sba_irq_ack, |
| 3171 | fore200e_sba_proc_read, |
| 3172 | }, |
| 3173 | #endif |
| 3174 | {} |
| 3175 | }; |
| 3176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3177 | MODULE_LICENSE("GPL"); |
Chas Williams | 6f75a9b | 2008-07-23 20:29:21 -0700 | [diff] [blame] | 3178 | #ifdef CONFIG_PCI |
| 3179 | #ifdef __LITTLE_ENDIAN__ |
| 3180 | MODULE_FIRMWARE("pca200e.bin"); |
| 3181 | #else |
| 3182 | MODULE_FIRMWARE("pca200e_ecd.bin2"); |
| 3183 | #endif |
| 3184 | #endif /* CONFIG_PCI */ |
| 3185 | #ifdef CONFIG_SBUS |
| 3186 | MODULE_FIRMWARE("sba200e_ecd.bin2"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3187 | #endif |