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[tools] fix segfault when using the maxlen argument (#4359)
[openwrt.git] / package / broadcom-57xx / src / mm.h
1 /******************************************************************************/
2 /* */
3 /* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2000 - 2004 Broadcom */
4 /* Corporation. */
5 /* All rights reserved. */
6 /* */
7 /* This program is free software; you can redistribute it and/or modify */
8 /* it under the terms of the GNU General Public License as published by */
9 /* the Free Software Foundation, located in the file LICENSE. */
10 /* */
11 /******************************************************************************/
12
13
14 #ifndef MM_H
15 #define MM_H
16
17 #include <linux/config.h>
18
19 #if defined(CONFIG_SMP) && !defined(__SMP__)
20 #define __SMP__
21 #endif
22
23 #if defined(CONFIG_MODVERSIONS) && defined(MODULE) && !defined(MODVERSIONS)
24 #ifndef BCM_SMALL_DRV
25 #define MODVERSIONS
26 #endif
27 #endif
28
29 #ifndef B57UM
30 #define __NO_VERSION__
31 #endif
32 #include <linux/version.h>
33
34 #ifdef MODULE
35
36 #if defined(MODVERSIONS) && (LINUX_VERSION_CODE < 0x020500)
37 #ifndef BCM_SMALL_DRV
38 #include <linux/modversions.h>
39 #endif
40 #endif
41
42 #if (LINUX_VERSION_CODE < 0x020605)
43 #include <linux/module.h>
44 #else
45 #include <linux/moduleparam.h>
46 #endif
47
48 #else
49
50 #define MOD_INC_USE_COUNT
51 #define MOD_DEC_USE_COUNT
52 #define SET_MODULE_OWNER(dev)
53 #define MODULE_DEVICE_TABLE(pci, pci_tbl)
54 #endif
55
56
57 #include <linux/kernel.h>
58 #include <linux/sched.h>
59 #include <linux/string.h>
60 #include <linux/timer.h>
61 #include <linux/errno.h>
62 #include <linux/ioport.h>
63 #include <linux/slab.h>
64 #include <linux/interrupt.h>
65 #include <linux/pci.h>
66 #include <linux/init.h>
67 #include <linux/netdevice.h>
68 #include <linux/etherdevice.h>
69 #include <linux/skbuff.h>
70 #include <linux/reboot.h>
71 #include <asm/processor.h> /* Processor type for cache alignment. */
72 #include <asm/bitops.h>
73 #include <asm/io.h>
74 #include <asm/unaligned.h>
75 #include <linux/delay.h>
76 #include <asm/byteorder.h>
77 #include <linux/time.h>
78 #include <asm/uaccess.h>
79 #if (LINUX_VERSION_CODE >= 0x020400)
80 #if (LINUX_VERSION_CODE < 0x020500)
81 #include <linux/wrapper.h>
82 #endif
83 #include <linux/ethtool.h>
84 #endif
85 #ifdef CONFIG_PROC_FS
86 #include <linux/smp_lock.h>
87 #include <linux/proc_fs.h>
88 #define BCM_PROC_FS 1
89 #endif
90 #ifdef NETIF_F_HW_VLAN_TX
91 #include <linux/if_vlan.h>
92 #define BCM_VLAN 1
93 #endif
94 #ifdef NETIF_F_TSO
95 #define BCM_TSO 1
96 #define INCLUDE_TCP_SEG_SUPPORT 1
97 #include <net/ip.h>
98 #include <net/tcp.h>
99 #include <net/checksum.h>
100 #endif
101
102 #ifndef LINUX_KERNEL_VERSION
103 #define LINUX_KERNEL_VERSION 0
104 #endif
105
106 #ifndef MAX_SKB_FRAGS
107 #define MAX_SKB_FRAGS 0
108 #endif
109
110 #if (LINUX_VERSION_CODE >= 0x020400)
111 #ifndef ETHTOOL_GEEPROM
112
113 #define ETHTOOL_GEEPROM 0x0000000b /* Get EEPROM data */
114 #define ETHTOOL_SEEPROM 0x0000000c /* Set EEPROM data */
115
116 /* for passing EEPROM chunks */
117 struct ethtool_eeprom {
118 u32 cmd;
119 u32 magic;
120 u32 offset; /* in bytes */
121 u32 len; /* in bytes */
122 u8 data[0];
123 };
124 #define BCM_EEDUMP_LEN(info_p, size) *((u32 *) &((info_p)->reserved1[24]))=size
125
126 #else
127
128 #define BCM_EEDUMP_LEN(info_p, size) (info_p)->eedump_len=size
129
130 #endif
131 #endif
132
133 #define BCM_INT_COAL 1
134 #define BCM_NIC_SEND_BD 1
135 #define BCM_ASF 1
136 #define BCM_WOL 1
137 #define BCM_TASKLET 1
138
139 #if HAVE_NETIF_RECEIVE_SKB
140 #define BCM_NAPI_RXPOLL 1
141 #undef BCM_TASKLET
142 #endif
143
144 #if defined(CONFIG_PPC64)
145 #define BCM_DISCONNECT_AT_CACHELINE 1
146 #endif
147
148 #ifdef BCM_SMALL_DRV
149 #undef BCM_PROC_FS
150 #undef ETHTOOL_GEEPROM
151 #undef ETHTOOL_SEEPROM
152 #undef ETHTOOL_GREGS
153 #undef ETHTOOL_GPAUSEPARAM
154 #undef ETHTOOL_GRXCSUM
155 #undef ETHTOOL_TEST
156 #undef BCM_INT_COAL
157 #undef BCM_NIC_SEND_BD
158 #undef BCM_WOL
159 #undef BCM_TASKLET
160 #undef BCM_TSO
161 #endif
162
163 #ifdef __BIG_ENDIAN
164 #define BIG_ENDIAN_HOST 1
165 #endif
166
167 #define MM_SWAP_LE32(x) cpu_to_le32(x)
168 #define MM_SWAP_BE32(x) cpu_to_be32(x)
169
170 #if (LINUX_VERSION_CODE < 0x020327)
171 #define __raw_readl readl
172 #define __raw_writel writel
173 #endif
174
175 #define MM_MEMWRITEL(ptr, val) __raw_writel(val, ptr)
176 #define MM_MEMREADL(ptr) __raw_readl(ptr)
177
178 typedef atomic_t MM_ATOMIC_T;
179
180 #define MM_ATOMIC_SET(ptr, val) atomic_set(ptr, val)
181 #define MM_ATOMIC_READ(ptr) atomic_read(ptr)
182 #define MM_ATOMIC_INC(ptr) atomic_inc(ptr)
183 #define MM_ATOMIC_ADD(ptr, val) atomic_add(val, ptr)
184 #define MM_ATOMIC_DEC(ptr) atomic_dec(ptr)
185 #define MM_ATOMIC_SUB(ptr, val) atomic_sub(val, ptr)
186
187
188 #ifndef mmiowb
189 #define mmiowb()
190 #endif
191
192
193 #define MM_MB() mb()
194 #define MM_WMB() wmb()
195 #define MM_RMB() rmb()
196 #define MM_MMIOWB() mmiowb()
197
198 #include "lm.h"
199 #include "queue.h"
200 #include "tigon3.h"
201
202 #if DBG
203 #define STATIC
204 #else
205 #define STATIC static
206 #endif
207
208 extern int MM_Packet_Desc_Size;
209
210 #define MM_PACKET_DESC_SIZE MM_Packet_Desc_Size
211
212 DECLARE_QUEUE_TYPE(UM_RX_PACKET_Q, MAX_RX_PACKET_DESC_COUNT+1);
213
214 #define MAX_MEM 16
215 #define MAX_MEM2 4
216
217 #if (LINUX_VERSION_CODE < 0x020211)
218 typedef u32 dma_addr_t;
219 #endif
220
221 #if (LINUX_VERSION_CODE < 0x02032a)
222 #define pci_map_single(dev, address, size, dir) virt_to_bus(address)
223 #define pci_unmap_single(dev, dma_addr, size, dir)
224 #endif
225
226 #if MAX_SKB_FRAGS
227 #if (LINUX_VERSION_CODE >= 0x02040d)
228
229 typedef dma_addr_t dmaaddr_high_t;
230
231 #else
232
233 #if defined(CONFIG_HIGHMEM) && defined(CONFIG_X86) && !defined(CONFIG_X86_64)
234
235 #if defined(CONFIG_HIGHMEM64G)
236 typedef unsigned long long dmaaddr_high_t;
237 #else
238 typedef dma_addr_t dmaaddr_high_t;
239 #endif
240
241 #ifndef pci_map_page
242 #define pci_map_page bcm_pci_map_page
243 #endif
244
245 static inline dmaaddr_high_t
246 bcm_pci_map_page(struct pci_dev *dev, struct page *page,
247 int offset, size_t size, int dir)
248 {
249 dmaaddr_high_t phys;
250
251 phys = (page-mem_map) * (dmaaddr_high_t) PAGE_SIZE + offset;
252
253 return phys;
254 }
255
256 #ifndef pci_unmap_page
257 #define pci_unmap_page(dev, map, size, dir)
258 #endif
259
260 #else /* #if defined(CONFIG_HIGHMEM) && defined(CONFIG_X86) && ! defined(CONFIG_X86_64)*/
261
262 typedef dma_addr_t dmaaddr_high_t;
263
264 /* Warning - This may not work for all architectures if HIGHMEM is defined */
265
266 #ifndef pci_map_page
267 #define pci_map_page(dev, page, offset, size, dir) \
268 pci_map_single(dev, page_address(page) + (offset), size, dir)
269 #endif
270 #ifndef pci_unmap_page
271 #define pci_unmap_page(dev, map, size, dir) \
272 pci_unmap_single(dev, map, size, dir)
273 #endif
274
275 #endif /* #if defined(CONFIG_HIGHMEM) && defined(CONFIG_X86) && ! defined(CONFIG_X86_64)*/
276
277 #endif /* #if (LINUX_VERSION_CODE >= 0x02040d)*/
278 #endif /* #if MAX_SKB_FRAGS*/
279
280 #if defined(CONFIG_X86) && !defined(CONFIG_X86_64)
281 #define NO_PCI_UNMAP 1
282 #endif
283
284 #if (LINUX_VERSION_CODE < 0x020412)
285 #if !defined(NO_PCI_UNMAP)
286 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME;
287 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME;
288
289 #define pci_unmap_addr(PTR, ADDR_NAME) \
290 ((PTR)->ADDR_NAME)
291
292 #define pci_unmap_len(PTR, LEN_NAME) \
293 ((PTR)->LEN_NAME)
294
295 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
296 (((PTR)->ADDR_NAME) = (VAL))
297
298 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
299 (((PTR)->LEN_NAME) = (VAL))
300 #else
301 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
302 #define DECLARE_PCI_UNMAP_LEN(ADDR_NAME)
303
304 #define pci_unmap_addr(PTR, ADDR_NAME) 0
305 #define pci_unmap_len(PTR, LEN_NAME) 0
306 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
307 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
308 #endif
309 #endif
310
311 #if (LINUX_VERSION_CODE < 0x02030e)
312 #define net_device device
313 #define netif_carrier_on(dev)
314 #define netif_carrier_off(dev)
315 #endif
316
317 #if (LINUX_VERSION_CODE < 0x02032b)
318 #define tasklet_struct tq_struct
319 #endif
320
321 typedef struct _UM_DEVICE_BLOCK {
322 LM_DEVICE_BLOCK lm_dev;
323 struct net_device *dev;
324 struct pci_dev *pdev;
325 struct net_device *next_module;
326 char *name;
327 #ifdef BCM_PROC_FS
328 struct proc_dir_entry *pfs_entry;
329 char pfs_name[32];
330 #endif
331 void *mem_list[MAX_MEM];
332 dma_addr_t dma_list[MAX_MEM];
333 int mem_size_list[MAX_MEM];
334 int mem_list_num;
335
336 int index;
337 int opened;
338 int suspended;
339 int using_dac; /* dual address cycle */
340 int delayed_link_ind; /* Delay link status during initial load */
341 int adapter_just_inited; /* the first few seconds after init. */
342 int timer_interval;
343 int statstimer_interval;
344 int adaptive_expiry;
345 int crc_counter_expiry;
346 int poll_tbi_interval;
347 int poll_tbi_expiry;
348 int asf_heartbeat;
349 int tx_full;
350 int tx_queued;
351 int line_speed; /* in Mbps, 0 if link is down */
352 UM_RX_PACKET_Q rx_out_of_buf_q;
353 int rx_out_of_buf;
354 int rx_buf_repl_thresh;
355 int rx_buf_repl_panic_thresh;
356 int rx_buf_repl_isr_limit;
357 int rx_buf_align;
358 struct timer_list timer;
359 struct timer_list statstimer;
360 int do_global_lock;
361 spinlock_t global_lock;
362 spinlock_t undi_lock;
363 spinlock_t phy_lock;
364 unsigned long undi_flags;
365 volatile unsigned long interrupt;
366 atomic_t intr_sem;
367 int tasklet_pending;
368 volatile unsigned long tasklet_busy;
369 struct tasklet_struct tasklet;
370 struct net_device_stats stats;
371 int intr_test;
372 int intr_test_result;
373 #ifdef NETIF_F_HW_VLAN_TX
374 struct vlan_group *vlgrp;
375 #endif
376 int vlan_tag_mode; /* Setting to allow ASF to work properly with */
377 /* VLANs */
378 #define VLAN_TAG_MODE_AUTO_STRIP 0
379 #define VLAN_TAG_MODE_NORMAL_STRIP 1
380 #define VLAN_TAG_MODE_FORCED_STRIP 2
381
382 /* Auto mode - VLAN TAGs are always stripped if ASF is enabled, */
383 /* If ASF is not enabled, it will be in normal mode. */
384 /* Normal mode - VLAN TAGs are stripped when VLANs are registered */
385 /* Forced mode - VLAN TAGs are always stripped. */
386
387 int adaptive_coalesce;
388 uint rx_last_cnt;
389 uint tx_last_cnt;
390 uint rx_curr_coalesce_frames;
391 uint rx_curr_coalesce_frames_intr;
392 uint rx_curr_coalesce_ticks;
393 uint tx_curr_coalesce_frames;
394 #if TIGON3_DEBUG
395 unsigned long tx_zc_count;
396 unsigned long tx_chksum_count;
397 unsigned long tx_himem_count;
398 unsigned long rx_good_chksum_count;
399 #endif
400 unsigned long rx_bad_chksum_count;
401 #ifdef BCM_TSO
402 unsigned long tso_pkt_count;
403 #endif
404 unsigned long rx_misc_errors;
405 uint64_t phy_crc_count;
406 unsigned int spurious_int;
407
408 void *sbh;
409 unsigned long boardflags;
410 void *robo;
411 int qos;
412 } UM_DEVICE_BLOCK, *PUM_DEVICE_BLOCK;
413
414 typedef struct _UM_PACKET {
415 LM_PACKET lm_packet;
416 struct sk_buff *skbuff;
417 #if MAX_SKB_FRAGS
418 DECLARE_PCI_UNMAP_ADDR(map[MAX_SKB_FRAGS + 1])
419 DECLARE_PCI_UNMAP_LEN(map_len[MAX_SKB_FRAGS + 1])
420 #else
421 DECLARE_PCI_UNMAP_ADDR(map[1])
422 DECLARE_PCI_UNMAP_LEN(map_len[1])
423 #endif
424 } UM_PACKET, *PUM_PACKET;
425
426 static inline void MM_SetAddr(LM_PHYSICAL_ADDRESS *paddr, dma_addr_t addr)
427 {
428 #if BITS_PER_LONG == 64
429 paddr->High = ((unsigned long) addr) >> 32;
430 paddr->Low = ((unsigned long) addr) & 0xffffffff;
431 #else
432 paddr->High = 0;
433 paddr->Low = (unsigned long) addr;
434 #endif
435 }
436
437 static inline void MM_SetT3Addr(T3_64BIT_HOST_ADDR *paddr, dma_addr_t addr)
438 {
439 #if BITS_PER_LONG == 64
440 paddr->High = ((unsigned long) addr) >> 32;
441 paddr->Low = ((unsigned long) addr) & 0xffffffff;
442 #else
443 paddr->High = 0;
444 paddr->Low = (unsigned long) addr;
445 #endif
446 }
447
448 #if MAX_SKB_FRAGS
449 static inline void MM_SetT3AddrHigh(T3_64BIT_HOST_ADDR *paddr,
450 dmaaddr_high_t addr)
451 {
452 #if defined(CONFIG_HIGHMEM64G) && defined(CONFIG_X86) && !defined(CONFIG_X86_64)
453 paddr->High = (unsigned long) (addr >> 32);
454 paddr->Low = (unsigned long) (addr & 0xffffffff);
455 #else
456 MM_SetT3Addr(paddr, (dma_addr_t) addr);
457 #endif
458 }
459 #endif
460
461 static inline void MM_MapRxDma(PLM_DEVICE_BLOCK pDevice,
462 struct _LM_PACKET *pPacket,
463 T3_64BIT_HOST_ADDR *paddr)
464 {
465 dma_addr_t map;
466 struct sk_buff *skb = ((struct _UM_PACKET *) pPacket)->skbuff;
467
468 map = pci_map_single(((struct _UM_DEVICE_BLOCK *)pDevice)->pdev,
469 skb->tail,
470 pPacket->u.Rx.RxBufferSize,
471 PCI_DMA_FROMDEVICE);
472 pci_unmap_addr_set(((struct _UM_PACKET *) pPacket), map[0], map);
473 MM_SetT3Addr(paddr, map);
474 }
475
476 static inline void MM_MapTxDma(PLM_DEVICE_BLOCK pDevice,
477 struct _LM_PACKET *pPacket,
478 T3_64BIT_HOST_ADDR *paddr,
479 LM_UINT32 *len,
480 int frag)
481 {
482 dma_addr_t map;
483 struct sk_buff *skb = ((struct _UM_PACKET *) pPacket)->skbuff;
484 unsigned int length;
485
486 if (frag == 0) {
487 #if MAX_SKB_FRAGS
488 if (skb_shinfo(skb)->nr_frags)
489 length = skb->len - skb->data_len;
490 else
491 #endif
492 length = skb->len;
493 map = pci_map_single(((struct _UM_DEVICE_BLOCK *)pDevice)->pdev,
494 skb->data, length, PCI_DMA_TODEVICE);
495 MM_SetT3Addr(paddr, map);
496 pci_unmap_addr_set(((struct _UM_PACKET *)pPacket), map[0], map);
497 pci_unmap_len_set(((struct _UM_PACKET *) pPacket), map_len[0],
498 length);
499 *len = length;
500 }
501 #if MAX_SKB_FRAGS
502 else {
503 skb_frag_t *sk_frag;
504 dmaaddr_high_t hi_map;
505
506 sk_frag = &skb_shinfo(skb)->frags[frag - 1];
507
508 hi_map = pci_map_page(
509 ((struct _UM_DEVICE_BLOCK *)pDevice)->pdev,
510 sk_frag->page,
511 sk_frag->page_offset,
512 sk_frag->size, PCI_DMA_TODEVICE);
513
514 MM_SetT3AddrHigh(paddr, hi_map);
515 pci_unmap_addr_set(((struct _UM_PACKET *) pPacket), map[frag],
516 hi_map);
517 pci_unmap_len_set(((struct _UM_PACKET *) pPacket),
518 map_len[frag], sk_frag->size);
519 *len = sk_frag->size;
520 }
521 #endif
522 }
523
524 #define BCM5700_PHY_LOCK(pUmDevice, flags) { \
525 spinlock_t *lock; \
526 if ((pUmDevice)->do_global_lock) { \
527 lock = &(pUmDevice)->global_lock; \
528 } \
529 else { \
530 lock = &(pUmDevice)->phy_lock; \
531 } \
532 spin_lock_irqsave(lock, flags); \
533 }
534
535 #define BCM5700_PHY_UNLOCK(pUmDevice, flags) { \
536 spinlock_t *lock; \
537 if ((pUmDevice)->do_global_lock) { \
538 lock = &(pUmDevice)->global_lock; \
539 } \
540 else { \
541 lock = &(pUmDevice)->phy_lock; \
542 } \
543 spin_unlock_irqrestore(lock, flags); \
544 }
545
546
547 #define MM_ACQUIRE_UNDI_LOCK(_pDevice) \
548 if (!(((PUM_DEVICE_BLOCK)(_pDevice))->do_global_lock)) { \
549 unsigned long flags; \
550 spin_lock_irqsave(&((PUM_DEVICE_BLOCK)(_pDevice))->undi_lock, flags); \
551 ((PUM_DEVICE_BLOCK)(_pDevice))->undi_flags = flags; \
552 }
553
554 #define MM_RELEASE_UNDI_LOCK(_pDevice) \
555 if (!(((PUM_DEVICE_BLOCK)(_pDevice))->do_global_lock)) { \
556 unsigned long flags = ((PUM_DEVICE_BLOCK) (_pDevice))->undi_flags; \
557 spin_unlock_irqrestore(&((PUM_DEVICE_BLOCK)(_pDevice))->undi_lock, flags); \
558 }
559
560 #define MM_ACQUIRE_PHY_LOCK_IN_IRQ(_pDevice) \
561 if (!(((PUM_DEVICE_BLOCK)(_pDevice))->do_global_lock)) { \
562 spin_lock(&((PUM_DEVICE_BLOCK)(_pDevice))->phy_lock); \
563 }
564
565 #define MM_RELEASE_PHY_LOCK_IN_IRQ(_pDevice) \
566 if (!(((PUM_DEVICE_BLOCK)(_pDevice))->do_global_lock)) { \
567 spin_unlock(&((PUM_DEVICE_BLOCK)(_pDevice))->phy_lock); \
568 }
569
570 #define MM_UINT_PTR(_ptr) ((unsigned long) (_ptr))
571
572 #define MM_GETSTATS64(_Ctr) \
573 (uint64_t) (_Ctr).Low + ((uint64_t) (_Ctr).High << 32)
574
575 #define MM_GETSTATS32(_Ctr) \
576 (uint32_t) (_Ctr).Low
577
578 #if BITS_PER_LONG == 64
579 #define MM_GETSTATS(_Ctr) (unsigned long) MM_GETSTATS64(_Ctr)
580 #else
581 #define MM_GETSTATS(_Ctr) (unsigned long) MM_GETSTATS32(_Ctr)
582 #endif
583
584 #if (LINUX_VERSION_CODE >= 0x020600)
585 #define mm_copy_to_user( to, from, size ) \
586 (in_atomic() ? (memcpy((to),(from),(size)), 0) : copy_to_user((to),(from),(size)))
587 #define mm_copy_from_user( to, from, size ) \
588 (in_atomic() ? (memcpy((to),(from),(size)), 0) : copy_from_user((to),(from),(size)))
589 #else
590 #define mm_copy_to_user( to, from, size ) \
591 copy_to_user((to),(from),(size) )
592 #define mm_copy_from_user( to, from, size ) \
593 copy_from_user((to),(from),(size))
594 #endif
595
596 #ifndef printf
597 #define printf(fmt, args...) printk(KERN_WARNING fmt, ##args)
598 #endif
599
600 #define DbgPrint(fmt, arg...) printk(KERN_DEBUG fmt, ##arg)
601 #if defined(CONFIG_X86)
602 #define DbgBreakPoint() __asm__("int $129")
603 #else
604 #define DbgBreakPoint()
605 #endif
606 #define MM_Wait(time) udelay(time)
607
608 #endif
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