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1da177e4 LT |
1 | /* |
2 | ** hp100.c | |
3 | ** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters | |
4 | ** | |
5 | ** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $ | |
6 | ** | |
7 | ** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz> | |
8 | ** Extended for new busmaster capable chipsets by | |
9 | ** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de> | |
10 | ** | |
11 | ** Maintained by: Jaroslav Kysela <perex@suse.cz> | |
12 | ** | |
13 | ** This driver has only been tested with | |
14 | ** -- HP J2585B 10/100 Mbit/s PCI Busmaster | |
15 | ** -- HP J2585A 10/100 Mbit/s PCI | |
31df7b7f PM |
16 | ** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC |
17 | ** -- HP J2973A 10 Mbit/s PCI 10base-T | |
1da177e4 LT |
18 | ** -- HP J2573 10/100 ISA |
19 | ** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA | |
20 | ** -- Compex FreedomLine 100/VG 10/100 Mbit/s ISA / EISA / PCI | |
21 | ** | |
22 | ** but it should also work with the other CASCADE based adapters. | |
23 | ** | |
24 | ** TODO: | |
25 | ** - J2573 seems to hang sometimes when in shared memory mode. | |
26 | ** - Mode for Priority TX | |
27 | ** - Check PCI registers, performance might be improved? | |
28 | ** - To reduce interrupt load in busmaster, one could switch off | |
29 | ** the interrupts that are used to refill the queues whenever the | |
30 | ** queues are filled up to more than a certain threshold. | |
31 | ** - some updates for EISA version of card | |
32 | ** | |
33 | ** | |
34 | ** This code is free software; you can redistribute it and/or modify | |
35 | ** it under the terms of the GNU General Public License as published by | |
36 | ** the Free Software Foundation; either version 2 of the License, or | |
37 | ** (at your option) any later version. | |
38 | ** | |
39 | ** This code is distributed in the hope that it will be useful, | |
40 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of | |
41 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
42 | ** GNU General Public License for more details. | |
43 | ** | |
44 | ** You should have received a copy of the GNU General Public License | |
45 | ** along with this program; if not, write to the Free Software | |
46 | ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
47 | ** | |
48 | ** 1.57c -> 1.58 | |
49 | ** - used indent to change coding-style | |
50 | ** - added KTI DP-200 EISA ID | |
51 | ** - ioremap is also used for low (<1MB) memory (multi-architecture support) | |
52 | ** | |
53 | ** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br> | |
54 | ** - release resources on failure in init_module | |
55 | ** | |
56 | ** 1.57 -> 1.57b - Jean II | |
57 | ** - fix spinlocks, SMP is now working ! | |
58 | ** | |
59 | ** 1.56 -> 1.57 | |
60 | ** - updates for new PCI interface for 2.1 kernels | |
61 | ** | |
62 | ** 1.55 -> 1.56 | |
63 | ** - removed printk in misc. interrupt and update statistics to allow | |
64 | ** monitoring of card status | |
65 | ** - timing changes in xmit routines, relogin to 100VG hub added when | |
66 | ** driver does reset | |
67 | ** - included fix for Compex FreedomLine PCI adapter | |
68 | ** | |
69 | ** 1.54 -> 1.55 | |
70 | ** - fixed bad initialization in init_module | |
71 | ** - added Compex FreedomLine adapter | |
72 | ** - some fixes in card initialization | |
73 | ** | |
74 | ** 1.53 -> 1.54 | |
75 | ** - added hardware multicast filter support (doesn't work) | |
76 | ** - little changes in hp100_sense_lan routine | |
77 | ** - added support for Coax and AUI (J2970) | |
78 | ** - fix for multiple cards and hp100_mode parameter (insmod) | |
79 | ** - fix for shared IRQ | |
80 | ** | |
81 | ** 1.52 -> 1.53 | |
82 | ** - fixed bug in multicast support | |
83 | ** | |
84 | */ | |
85 | ||
86 | #define HP100_DEFAULT_PRIORITY_TX 0 | |
87 | ||
88 | #undef HP100_DEBUG | |
89 | #undef HP100_DEBUG_B /* Trace */ | |
90 | #undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */ | |
91 | ||
92 | #undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */ | |
93 | #undef HP100_DEBUG_TX | |
94 | #undef HP100_DEBUG_IRQ | |
95 | #undef HP100_DEBUG_RX | |
96 | ||
97 | #undef HP100_MULTICAST_FILTER /* Need to be debugged... */ | |
98 | ||
1da177e4 LT |
99 | #include <linux/module.h> |
100 | #include <linux/kernel.h> | |
101 | #include <linux/string.h> | |
102 | #include <linux/errno.h> | |
103 | #include <linux/ioport.h> | |
104 | #include <linux/slab.h> | |
105 | #include <linux/interrupt.h> | |
106 | #include <linux/eisa.h> | |
107 | #include <linux/pci.h> | |
1e7f0bd8 | 108 | #include <linux/dma-mapping.h> |
1da177e4 LT |
109 | #include <linux/spinlock.h> |
110 | #include <linux/netdevice.h> | |
111 | #include <linux/etherdevice.h> | |
112 | #include <linux/skbuff.h> | |
113 | #include <linux/types.h> | |
114 | #include <linux/config.h> /* for CONFIG_PCI */ | |
115 | #include <linux/delay.h> | |
116 | #include <linux/init.h> | |
117 | #include <linux/bitops.h> | |
ff5688ae | 118 | #include <linux/jiffies.h> |
1da177e4 LT |
119 | |
120 | #include <asm/io.h> | |
121 | ||
122 | #include "hp100.h" | |
123 | ||
124 | /* | |
125 | * defines | |
126 | */ | |
127 | ||
128 | #define HP100_BUS_ISA 0 | |
129 | #define HP100_BUS_EISA 1 | |
130 | #define HP100_BUS_PCI 2 | |
131 | ||
132 | #define HP100_REGION_SIZE 0x20 /* for ioports */ | |
133 | #define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */ | |
134 | ||
135 | #define HP100_MAX_PACKET_SIZE (1536+4) | |
136 | #define HP100_MIN_PACKET_SIZE 60 | |
137 | ||
138 | #ifndef HP100_DEFAULT_RX_RATIO | |
139 | /* default - 75% onboard memory on the card are used for RX packets */ | |
140 | #define HP100_DEFAULT_RX_RATIO 75 | |
141 | #endif | |
142 | ||
143 | #ifndef HP100_DEFAULT_PRIORITY_TX | |
144 | /* default - don't enable transmit outgoing packets as priority */ | |
145 | #define HP100_DEFAULT_PRIORITY_TX 0 | |
146 | #endif | |
147 | ||
148 | /* | |
149 | * structures | |
150 | */ | |
151 | ||
152 | struct hp100_private { | |
153 | spinlock_t lock; | |
154 | char id[HP100_SIG_LEN]; | |
155 | u_short chip; | |
156 | u_short soft_model; | |
157 | u_int memory_size; | |
158 | u_int virt_memory_size; | |
159 | u_short rx_ratio; /* 1 - 99 */ | |
160 | u_short priority_tx; /* != 0 - priority tx */ | |
161 | u_short mode; /* PIO, Shared Mem or Busmaster */ | |
162 | u_char bus; | |
163 | struct pci_dev *pci_dev; | |
164 | short mem_mapped; /* memory mapped access */ | |
165 | void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */ | |
166 | unsigned long mem_ptr_phys; /* physical memory mapped area */ | |
167 | short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */ | |
168 | int hub_status; /* was login to hub successful? */ | |
169 | u_char mac1_mode; | |
170 | u_char mac2_mode; | |
171 | u_char hash_bytes[8]; | |
172 | struct net_device_stats stats; | |
173 | ||
174 | /* Rings for busmaster mode: */ | |
175 | hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */ | |
176 | hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */ | |
177 | hp100_ring_t *txrhead; /* Head (oldest) index into txring */ | |
178 | hp100_ring_t *txrtail; /* Tail (newest) index into txring */ | |
179 | ||
180 | hp100_ring_t rxring[MAX_RX_PDL]; | |
181 | hp100_ring_t txring[MAX_TX_PDL]; | |
182 | ||
183 | u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */ | |
184 | u_long whatever_offset; /* Offset to bus/phys/dma address */ | |
185 | int rxrcommit; /* # Rx PDLs commited to adapter */ | |
186 | int txrcommit; /* # Tx PDLs commited to adapter */ | |
187 | }; | |
188 | ||
189 | /* | |
190 | * variables | |
191 | */ | |
192 | static const char *hp100_isa_tbl[] = { | |
193 | "HWPF150", /* HP J2573 rev A */ | |
194 | "HWP1950", /* HP J2573 */ | |
195 | }; | |
196 | ||
197 | #ifdef CONFIG_EISA | |
198 | static struct eisa_device_id hp100_eisa_tbl[] = { | |
199 | { "HWPF180" }, /* HP J2577 rev A */ | |
200 | { "HWP1920" }, /* HP 27248B */ | |
201 | { "HWP1940" }, /* HP J2577 */ | |
202 | { "HWP1990" }, /* HP J2577 */ | |
203 | { "CPX0301" }, /* ReadyLink ENET100-VG4 */ | |
204 | { "CPX0401" }, /* FreedomLine 100/VG */ | |
205 | { "" } /* Mandatory final entry ! */ | |
206 | }; | |
207 | MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl); | |
208 | #endif | |
209 | ||
210 | #ifdef CONFIG_PCI | |
211 | static struct pci_device_id hp100_pci_tbl[] = { | |
212 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,}, | |
213 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,}, | |
214 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,}, | |
215 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,}, | |
216 | {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,}, | |
217 | {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,}, | |
218 | /* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */ | |
219 | {} /* Terminating entry */ | |
220 | }; | |
221 | MODULE_DEVICE_TABLE(pci, hp100_pci_tbl); | |
222 | #endif | |
223 | ||
224 | static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO; | |
225 | static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX; | |
226 | static int hp100_mode = 1; | |
227 | ||
228 | module_param(hp100_rx_ratio, int, 0); | |
229 | module_param(hp100_priority_tx, int, 0); | |
230 | module_param(hp100_mode, int, 0); | |
231 | ||
232 | /* | |
233 | * prototypes | |
234 | */ | |
235 | ||
236 | static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, | |
237 | struct pci_dev *pci_dev); | |
238 | ||
239 | ||
240 | static int hp100_open(struct net_device *dev); | |
241 | static int hp100_close(struct net_device *dev); | |
242 | static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
243 | static int hp100_start_xmit_bm(struct sk_buff *skb, | |
244 | struct net_device *dev); | |
245 | static void hp100_rx(struct net_device *dev); | |
246 | static struct net_device_stats *hp100_get_stats(struct net_device *dev); | |
247 | static void hp100_misc_interrupt(struct net_device *dev); | |
248 | static void hp100_update_stats(struct net_device *dev); | |
249 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr); | |
250 | static void hp100_set_multicast_list(struct net_device *dev); | |
251 | static irqreturn_t hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs); | |
252 | static void hp100_start_interface(struct net_device *dev); | |
253 | static void hp100_stop_interface(struct net_device *dev); | |
254 | static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr); | |
255 | static int hp100_sense_lan(struct net_device *dev); | |
256 | static int hp100_login_to_vg_hub(struct net_device *dev, | |
257 | u_short force_relogin); | |
258 | static int hp100_down_vg_link(struct net_device *dev); | |
259 | static void hp100_cascade_reset(struct net_device *dev, u_short enable); | |
260 | static void hp100_BM_shutdown(struct net_device *dev); | |
261 | static void hp100_mmuinit(struct net_device *dev); | |
262 | static void hp100_init_pdls(struct net_device *dev); | |
263 | static int hp100_init_rxpdl(struct net_device *dev, | |
264 | register hp100_ring_t * ringptr, | |
265 | register u_int * pdlptr); | |
266 | static int hp100_init_txpdl(struct net_device *dev, | |
267 | register hp100_ring_t * ringptr, | |
268 | register u_int * pdlptr); | |
269 | static void hp100_rxfill(struct net_device *dev); | |
270 | static void hp100_hwinit(struct net_device *dev); | |
271 | static void hp100_clean_txring(struct net_device *dev); | |
272 | #ifdef HP100_DEBUG | |
273 | static void hp100_RegisterDump(struct net_device *dev); | |
274 | #endif | |
275 | ||
276 | /* Conversion to new PCI API : | |
277 | * Convert an address in a kernel buffer to a bus/phys/dma address. | |
278 | * This work *only* for memory fragments part of lp->page_vaddr, | |
279 | * because it was properly DMA allocated via pci_alloc_consistent(), | |
943ffb58 | 280 | * so we just need to "retrieve" the original mapping to bus/phys/dma |
1da177e4 LT |
281 | * address - Jean II */ |
282 | static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr) | |
283 | { | |
284 | struct hp100_private *lp = netdev_priv(dev); | |
285 | return ((u_long) ptr) + lp->whatever_offset; | |
286 | } | |
287 | ||
288 | static inline u_int pdl_map_data(struct hp100_private *lp, void *data) | |
289 | { | |
290 | return pci_map_single(lp->pci_dev, data, | |
291 | MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); | |
292 | } | |
293 | ||
294 | /* TODO: This function should not really be needed in a good design... */ | |
295 | static void wait(void) | |
296 | { | |
297 | mdelay(1); | |
298 | } | |
299 | ||
300 | /* | |
301 | * probe functions | |
302 | * These functions should - if possible - avoid doing write operations | |
303 | * since this could cause problems when the card is not installed. | |
304 | */ | |
305 | ||
306 | /* | |
307 | * Read board id and convert to string. | |
308 | * Effectively same code as decode_eisa_sig | |
309 | */ | |
310 | static __devinit const char *hp100_read_id(int ioaddr) | |
311 | { | |
312 | int i; | |
313 | static char str[HP100_SIG_LEN]; | |
314 | unsigned char sig[4], sum; | |
315 | unsigned short rev; | |
316 | ||
317 | hp100_page(ID_MAC_ADDR); | |
318 | sum = 0; | |
319 | for (i = 0; i < 4; i++) { | |
320 | sig[i] = hp100_inb(BOARD_ID + i); | |
321 | sum += sig[i]; | |
322 | } | |
323 | ||
324 | sum += hp100_inb(BOARD_ID + i); | |
325 | if (sum != 0xff) | |
326 | return NULL; /* bad checksum */ | |
327 | ||
328 | str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1); | |
329 | str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1); | |
330 | str[2] = (sig[1] & 0x1f) + ('A' - 1); | |
331 | rev = (sig[2] << 8) | sig[3]; | |
332 | sprintf(str + 3, "%04X", rev); | |
333 | ||
334 | return str; | |
335 | } | |
336 | ||
337 | static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr) | |
338 | { | |
339 | const char *sig; | |
340 | int i; | |
341 | ||
342 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) | |
343 | goto err; | |
344 | ||
345 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) { | |
346 | release_region(ioaddr, HP100_REGION_SIZE); | |
347 | goto err; | |
348 | } | |
349 | ||
350 | sig = hp100_read_id(ioaddr); | |
351 | release_region(ioaddr, HP100_REGION_SIZE); | |
352 | ||
353 | if (sig == NULL) | |
354 | goto err; | |
355 | ||
356 | for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) { | |
357 | if (!strcmp(hp100_isa_tbl[i], sig)) | |
358 | break; | |
359 | ||
360 | } | |
361 | ||
362 | if (i < ARRAY_SIZE(hp100_isa_tbl)) | |
363 | return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL); | |
364 | err: | |
365 | return -ENODEV; | |
366 | ||
367 | } | |
368 | /* | |
369 | * Probe for ISA board. | |
370 | * EISA and PCI are handled by device infrastructure. | |
371 | */ | |
372 | ||
373 | static int __init hp100_isa_probe(struct net_device *dev, int addr) | |
374 | { | |
375 | int err = -ENODEV; | |
376 | ||
377 | /* Probe for a specific ISA address */ | |
378 | if (addr > 0xff && addr < 0x400) | |
379 | err = hp100_isa_probe1(dev, addr); | |
380 | ||
381 | else if (addr != 0) | |
382 | err = -ENXIO; | |
383 | ||
384 | else { | |
385 | /* Probe all ISA possible port regions */ | |
386 | for (addr = 0x100; addr < 0x400; addr += 0x20) { | |
387 | err = hp100_isa_probe1(dev, addr); | |
388 | if (!err) | |
389 | break; | |
390 | } | |
391 | } | |
392 | return err; | |
393 | } | |
394 | ||
395 | ||
396 | #ifndef MODULE | |
397 | struct net_device * __init hp100_probe(int unit) | |
398 | { | |
399 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); | |
400 | int err; | |
401 | ||
402 | if (!dev) | |
403 | return ERR_PTR(-ENODEV); | |
404 | ||
405 | SET_MODULE_OWNER(dev); | |
406 | ||
407 | #ifdef HP100_DEBUG_B | |
408 | hp100_outw(0x4200, TRACE); | |
409 | printk("hp100: %s: probe\n", dev->name); | |
410 | #endif | |
411 | ||
412 | if (unit >= 0) { | |
413 | sprintf(dev->name, "eth%d", unit); | |
414 | netdev_boot_setup_check(dev); | |
415 | } | |
416 | ||
417 | err = hp100_isa_probe(dev, dev->base_addr); | |
418 | if (err) | |
419 | goto out; | |
420 | ||
1da177e4 | 421 | return dev; |
1da177e4 LT |
422 | out: |
423 | free_netdev(dev); | |
424 | return ERR_PTR(err); | |
425 | } | |
426 | #endif | |
427 | ||
428 | static int __devinit hp100_probe1(struct net_device *dev, int ioaddr, | |
429 | u_char bus, struct pci_dev *pci_dev) | |
430 | { | |
431 | int i; | |
432 | int err = -ENODEV; | |
433 | const char *eid; | |
434 | u_int chip; | |
435 | u_char uc; | |
436 | u_int memory_size = 0, virt_memory_size = 0; | |
437 | u_short local_mode, lsw; | |
438 | short mem_mapped; | |
439 | unsigned long mem_ptr_phys; | |
440 | void __iomem *mem_ptr_virt; | |
441 | struct hp100_private *lp; | |
442 | ||
443 | #ifdef HP100_DEBUG_B | |
444 | hp100_outw(0x4201, TRACE); | |
445 | printk("hp100: %s: probe1\n", dev->name); | |
446 | #endif | |
447 | ||
448 | /* memory region for programmed i/o */ | |
449 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) | |
450 | goto out1; | |
451 | ||
452 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) | |
453 | goto out2; | |
454 | ||
455 | chip = hp100_inw(PAGING) & HP100_CHIPID_MASK; | |
456 | #ifdef HP100_DEBUG | |
457 | if (chip == HP100_CHIPID_SHASTA) | |
458 | printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name); | |
459 | else if (chip == HP100_CHIPID_RAINIER) | |
460 | printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name); | |
461 | else if (chip == HP100_CHIPID_LASSEN) | |
462 | printk("hp100: %s: Lassen Chip detected.\n", dev->name); | |
463 | else | |
464 | printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip); | |
465 | #endif | |
466 | ||
467 | dev->base_addr = ioaddr; | |
468 | ||
469 | eid = hp100_read_id(ioaddr); | |
470 | if (eid == NULL) { /* bad checksum? */ | |
471 | printk(KERN_WARNING "hp100_probe: bad ID checksum at base port 0x%x\n", ioaddr); | |
472 | goto out2; | |
473 | } | |
474 | ||
475 | hp100_page(ID_MAC_ADDR); | |
476 | for (i = uc = 0; i < 7; i++) | |
477 | uc += hp100_inb(LAN_ADDR + i); | |
478 | if (uc != 0xff) { | |
479 | printk(KERN_WARNING "hp100_probe: bad lan address checksum at port 0x%x)\n", ioaddr); | |
480 | err = -EIO; | |
481 | goto out2; | |
482 | } | |
483 | ||
484 | /* Make sure, that all registers are correctly updated... */ | |
485 | ||
486 | hp100_load_eeprom(dev, ioaddr); | |
487 | wait(); | |
488 | ||
489 | /* | |
490 | * Determine driver operation mode | |
491 | * | |
492 | * Use the variable "hp100_mode" upon insmod or as kernel parameter to | |
493 | * force driver modes: | |
494 | * hp100_mode=1 -> default, use busmaster mode if configured. | |
495 | * hp100_mode=2 -> enable shared memory mode | |
496 | * hp100_mode=3 -> force use of i/o mapped mode. | |
497 | * hp100_mode=4 -> same as 1, but re-set the enable bit on the card. | |
498 | */ | |
499 | ||
500 | /* | |
501 | * LSW values: | |
502 | * 0x2278 -> J2585B, PnP shared memory mode | |
503 | * 0x2270 -> J2585B, shared memory mode, 0xdc000 | |
504 | * 0xa23c -> J2585B, I/O mapped mode | |
505 | * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip) | |
506 | * 0x2220 -> EISA HP, I/O (Shasta Chip) | |
507 | * 0x2260 -> EISA HP, BusMaster (Shasta Chip) | |
508 | */ | |
509 | ||
510 | #if 0 | |
511 | local_mode = 0x2270; | |
512 | hp100_outw(0xfefe, OPTION_LSW); | |
513 | hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW); | |
514 | #endif | |
515 | ||
516 | /* hp100_mode value maybe used in future by another card */ | |
517 | local_mode = hp100_mode; | |
518 | if (local_mode < 1 || local_mode > 4) | |
519 | local_mode = 1; /* default */ | |
520 | #ifdef HP100_DEBUG | |
521 | printk("hp100: %s: original LSW = 0x%x\n", dev->name, | |
522 | hp100_inw(OPTION_LSW)); | |
523 | #endif | |
524 | ||
525 | if (local_mode == 3) { | |
526 | hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); | |
527 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
528 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
529 | printk("hp100: IO mapped mode forced.\n"); | |
530 | } else if (local_mode == 2) { | |
531 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
532 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
533 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
534 | printk("hp100: Shared memory mode requested.\n"); | |
535 | } else if (local_mode == 4) { | |
536 | if (chip == HP100_CHIPID_LASSEN) { | |
537 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); | |
538 | hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); | |
539 | printk("hp100: Busmaster mode requested.\n"); | |
540 | } | |
541 | local_mode = 1; | |
542 | } | |
543 | ||
544 | if (local_mode == 1) { /* default behaviour */ | |
545 | lsw = hp100_inw(OPTION_LSW); | |
546 | ||
547 | if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && | |
548 | (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { | |
549 | #ifdef HP100_DEBUG | |
550 | printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); | |
551 | #endif | |
552 | local_mode = 3; | |
553 | } else if (chip == HP100_CHIPID_LASSEN && | |
554 | (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { | |
555 | /* Conversion to new PCI API : | |
556 | * I don't have the doc, but I assume that the card | |
557 | * can map the full 32bit address space. | |
558 | * Also, we can have EISA Busmaster cards (not tested), | |
559 | * so beware !!! - Jean II */ | |
560 | if((bus == HP100_BUS_PCI) && | |
1e7f0bd8 | 561 | (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK))) { |
1da177e4 LT |
562 | /* Gracefully fallback to shared memory */ |
563 | goto busmasterfail; | |
564 | } | |
565 | printk("hp100: Busmaster mode enabled.\n"); | |
566 | hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); | |
567 | } else { | |
568 | busmasterfail: | |
569 | #ifdef HP100_DEBUG | |
570 | printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); | |
571 | printk("hp100: %s: Trying shared memory mode.\n", dev->name); | |
572 | #endif | |
573 | /* In this case, try shared memory mode */ | |
574 | local_mode = 2; | |
575 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
576 | /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ | |
577 | } | |
578 | } | |
579 | #ifdef HP100_DEBUG | |
580 | printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); | |
581 | #endif | |
582 | ||
583 | /* Check for shared memory on the card, eventually remap it */ | |
584 | hp100_page(HW_MAP); | |
585 | mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); | |
586 | mem_ptr_phys = 0UL; | |
587 | mem_ptr_virt = NULL; | |
588 | memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); | |
589 | virt_memory_size = 0; | |
590 | ||
591 | /* For memory mapped or busmaster mode, we want the memory address */ | |
592 | if (mem_mapped || (local_mode == 1)) { | |
593 | mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); | |
594 | mem_ptr_phys &= ~0x1fff; /* 8k alignment */ | |
595 | ||
596 | if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { | |
597 | printk("hp100: Can only use programmed i/o mode.\n"); | |
598 | mem_ptr_phys = 0; | |
599 | mem_mapped = 0; | |
600 | local_mode = 3; /* Use programmed i/o */ | |
601 | } | |
602 | ||
603 | /* We do not need access to shared memory in busmaster mode */ | |
604 | /* However in slave mode we need to remap high (>1GB) card memory */ | |
605 | if (local_mode != 1) { /* = not busmaster */ | |
606 | /* We try with smaller memory sizes, if ioremap fails */ | |
607 | for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { | |
608 | if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { | |
609 | #ifdef HP100_DEBUG | |
610 | printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); | |
611 | #endif | |
612 | } else { | |
613 | #ifdef HP100_DEBUG | |
614 | printk("hp100: %s: remapped 0x%x bytes high PCI memory at 0x%lx to %p.\n", dev->name, virt_memory_size, mem_ptr_phys, mem_ptr_virt); | |
615 | #endif | |
616 | break; | |
617 | } | |
618 | } | |
619 | ||
620 | if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ | |
621 | printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); | |
622 | local_mode = 3; | |
623 | virt_memory_size = 0; | |
624 | } | |
625 | } | |
626 | } | |
627 | ||
628 | if (local_mode == 3) { /* io mapped forced */ | |
629 | mem_mapped = 0; | |
630 | mem_ptr_phys = 0; | |
631 | mem_ptr_virt = NULL; | |
632 | printk("hp100: Using (slow) programmed i/o mode.\n"); | |
633 | } | |
634 | ||
635 | /* Initialise the "private" data structure for this card. */ | |
636 | lp = netdev_priv(dev); | |
637 | ||
638 | spin_lock_init(&lp->lock); | |
639 | strlcpy(lp->id, eid, HP100_SIG_LEN); | |
640 | lp->chip = chip; | |
641 | lp->mode = local_mode; | |
642 | lp->bus = bus; | |
643 | lp->pci_dev = pci_dev; | |
644 | lp->priority_tx = hp100_priority_tx; | |
645 | lp->rx_ratio = hp100_rx_ratio; | |
646 | lp->mem_ptr_phys = mem_ptr_phys; | |
647 | lp->mem_ptr_virt = mem_ptr_virt; | |
648 | hp100_page(ID_MAC_ADDR); | |
649 | lp->soft_model = hp100_inb(SOFT_MODEL); | |
650 | lp->mac1_mode = HP100_MAC1MODE3; | |
651 | lp->mac2_mode = HP100_MAC2MODE3; | |
652 | memset(&lp->hash_bytes, 0x00, 8); | |
653 | ||
654 | dev->base_addr = ioaddr; | |
655 | ||
656 | lp->memory_size = memory_size; | |
657 | lp->virt_memory_size = virt_memory_size; | |
658 | lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ | |
659 | ||
660 | dev->open = hp100_open; | |
661 | dev->stop = hp100_close; | |
662 | ||
663 | if (lp->mode == 1) /* busmaster */ | |
664 | dev->hard_start_xmit = hp100_start_xmit_bm; | |
665 | else | |
666 | dev->hard_start_xmit = hp100_start_xmit; | |
667 | ||
668 | dev->get_stats = hp100_get_stats; | |
669 | dev->set_multicast_list = &hp100_set_multicast_list; | |
670 | ||
671 | /* Ask the card for which IRQ line it is configured */ | |
672 | if (bus == HP100_BUS_PCI) { | |
673 | dev->irq = pci_dev->irq; | |
674 | } else { | |
675 | hp100_page(HW_MAP); | |
676 | dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; | |
677 | if (dev->irq == 2) | |
678 | dev->irq = 9; | |
679 | } | |
680 | ||
681 | if (lp->mode == 1) /* busmaster */ | |
682 | dev->dma = 4; | |
683 | ||
684 | /* Ask the card for its MAC address and store it for later use. */ | |
685 | hp100_page(ID_MAC_ADDR); | |
686 | for (i = uc = 0; i < 6; i++) | |
687 | dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); | |
688 | ||
689 | /* Reset statistics (counters) */ | |
690 | hp100_clear_stats(lp, ioaddr); | |
691 | ||
692 | /* If busmaster mode is wanted, a dma-capable memory area is needed for | |
693 | * the rx and tx PDLs | |
694 | * PCI cards can access the whole PC memory. Therefore GFP_DMA is not | |
695 | * needed for the allocation of the memory area. | |
696 | */ | |
697 | ||
698 | /* TODO: We do not need this with old cards, where PDLs are stored | |
699 | * in the cards shared memory area. But currently, busmaster has been | |
700 | * implemented/tested only with the lassen chip anyway... */ | |
701 | if (lp->mode == 1) { /* busmaster */ | |
702 | dma_addr_t page_baddr; | |
703 | /* Get physically continous memory for TX & RX PDLs */ | |
704 | /* Conversion to new PCI API : | |
705 | * Pages are always aligned and zeroed, no need to it ourself. | |
706 | * Doc says should be OK for EISA bus as well - Jean II */ | |
707 | if ((lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr)) == NULL) { | |
708 | err = -ENOMEM; | |
709 | goto out2; | |
710 | } | |
711 | lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); | |
712 | ||
713 | #ifdef HP100_DEBUG_BM | |
714 | printk("hp100: %s: Reserved DMA memory from 0x%x to 0x%x\n", dev->name, (u_int) lp->page_vaddr_algn, (u_int) lp->page_vaddr_algn + MAX_RINGSIZE); | |
715 | #endif | |
716 | lp->rxrcommit = lp->txrcommit = 0; | |
717 | lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); | |
718 | lp->txrhead = lp->txrtail = &(lp->txring[0]); | |
719 | } | |
720 | ||
721 | /* Initialise the card. */ | |
722 | /* (I'm not really sure if it's a good idea to do this during probing, but | |
723 | * like this it's assured that the lan connection type can be sensed | |
724 | * correctly) | |
725 | */ | |
726 | hp100_hwinit(dev); | |
727 | ||
728 | /* Try to find out which kind of LAN the card is connected to. */ | |
729 | lp->lan_type = hp100_sense_lan(dev); | |
730 | ||
731 | /* Print out a message what about what we think we have probed. */ | |
732 | printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); | |
733 | switch (bus) { | |
734 | case HP100_BUS_EISA: | |
735 | printk("EISA"); | |
736 | break; | |
737 | case HP100_BUS_PCI: | |
738 | printk("PCI"); | |
739 | break; | |
740 | default: | |
741 | printk("ISA"); | |
742 | break; | |
743 | } | |
744 | printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); | |
745 | ||
746 | if (lp->mode == 2) { /* memory mapped */ | |
747 | printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, | |
748 | (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); | |
749 | if (mem_ptr_virt) | |
750 | printk(" (virtual base %p)", mem_ptr_virt); | |
751 | printk(".\n"); | |
752 | ||
753 | /* Set for info when doing ifconfig */ | |
754 | dev->mem_start = mem_ptr_phys; | |
755 | dev->mem_end = mem_ptr_phys + lp->memory_size; | |
756 | } | |
757 | ||
758 | printk("hp100: "); | |
759 | if (lp->lan_type != HP100_LAN_ERR) | |
760 | printk("Adapter is attached to "); | |
761 | switch (lp->lan_type) { | |
762 | case HP100_LAN_100: | |
763 | printk("100Mb/s Voice Grade AnyLAN network.\n"); | |
764 | break; | |
765 | case HP100_LAN_10: | |
766 | printk("10Mb/s network (10baseT).\n"); | |
767 | break; | |
768 | case HP100_LAN_COAX: | |
769 | printk("10Mb/s network (coax).\n"); | |
770 | break; | |
771 | default: | |
772 | printk("Warning! Link down.\n"); | |
773 | } | |
774 | ||
b1fc5505 | 775 | err = register_netdev(dev); |
776 | if (err) | |
777 | goto out3; | |
778 | ||
1da177e4 | 779 | return 0; |
b1fc5505 | 780 | out3: |
781 | if (local_mode == 1) | |
782 | pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, | |
783 | lp->page_vaddr_algn, | |
784 | virt_to_whatever(dev, lp->page_vaddr_algn)); | |
785 | if (mem_ptr_virt) | |
786 | iounmap(mem_ptr_virt); | |
1da177e4 LT |
787 | out2: |
788 | release_region(ioaddr, HP100_REGION_SIZE); | |
789 | out1: | |
b1fc5505 | 790 | return err; |
1da177e4 LT |
791 | } |
792 | ||
793 | /* This procedure puts the card into a stable init state */ | |
794 | static void hp100_hwinit(struct net_device *dev) | |
795 | { | |
796 | int ioaddr = dev->base_addr; | |
797 | struct hp100_private *lp = netdev_priv(dev); | |
798 | ||
799 | #ifdef HP100_DEBUG_B | |
800 | hp100_outw(0x4202, TRACE); | |
801 | printk("hp100: %s: hwinit\n", dev->name); | |
802 | #endif | |
803 | ||
804 | /* Initialise the card. -------------------------------------------- */ | |
805 | ||
806 | /* Clear all pending Ints and disable Ints */ | |
807 | hp100_page(PERFORMANCE); | |
808 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
809 | hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ | |
810 | ||
811 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
812 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); | |
813 | ||
814 | if (lp->mode == 1) { | |
815 | hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ | |
816 | wait(); | |
817 | } else { | |
818 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
819 | hp100_cascade_reset(dev, 1); | |
820 | hp100_page(MAC_CTRL); | |
821 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); | |
822 | } | |
823 | ||
824 | /* Initiate EEPROM reload */ | |
825 | hp100_load_eeprom(dev, 0); | |
826 | ||
827 | wait(); | |
828 | ||
829 | /* Go into reset again. */ | |
830 | hp100_cascade_reset(dev, 1); | |
831 | ||
832 | /* Set Option Registers to a safe state */ | |
833 | hp100_outw(HP100_DEBUG_EN | | |
834 | HP100_RX_HDR | | |
835 | HP100_EE_EN | | |
836 | HP100_BM_WRITE | | |
837 | HP100_BM_READ | HP100_RESET_HB | | |
838 | HP100_FAKE_INT | | |
839 | HP100_INT_EN | | |
840 | HP100_MEM_EN | | |
841 | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); | |
842 | ||
843 | hp100_outw(HP100_TRI_INT | | |
844 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); | |
845 | ||
846 | hp100_outb(HP100_PRIORITY_TX | | |
847 | HP100_ADV_NXT_PKT | | |
848 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); | |
849 | ||
850 | /* TODO: Configure MMU for Ram Test. */ | |
851 | /* TODO: Ram Test. */ | |
852 | ||
853 | /* Re-check if adapter is still at same i/o location */ | |
854 | /* (If the base i/o in eeprom has been changed but the */ | |
855 | /* registers had not been changed, a reload of the eeprom */ | |
856 | /* would move the adapter to the address stored in eeprom */ | |
857 | ||
858 | /* TODO: Code to implement. */ | |
859 | ||
860 | /* Until here it was code from HWdiscover procedure. */ | |
861 | /* Next comes code from mmuinit procedure of SCO BM driver which is | |
862 | * called from HWconfigure in the SCO driver. */ | |
863 | ||
864 | /* Initialise MMU, eventually switch on Busmaster Mode, initialise | |
865 | * multicast filter... | |
866 | */ | |
867 | hp100_mmuinit(dev); | |
868 | ||
869 | /* We don't turn the interrupts on here - this is done by start_interface. */ | |
870 | wait(); /* TODO: Do we really need this? */ | |
871 | ||
872 | /* Enable Hardware (e.g. unreset) */ | |
873 | hp100_cascade_reset(dev, 0); | |
874 | ||
875 | /* ------- initialisation complete ----------- */ | |
876 | ||
877 | /* Finally try to log in the Hub if there may be a VG connection. */ | |
878 | if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) | |
879 | hp100_login_to_vg_hub(dev, 0); /* relogin */ | |
880 | ||
881 | } | |
882 | \f | |
883 | ||
884 | /* | |
885 | * mmuinit - Reinitialise Cascade MMU and MAC settings. | |
886 | * Note: Must already be in reset and leaves card in reset. | |
887 | */ | |
888 | static void hp100_mmuinit(struct net_device *dev) | |
889 | { | |
890 | int ioaddr = dev->base_addr; | |
891 | struct hp100_private *lp = netdev_priv(dev); | |
892 | int i; | |
893 | ||
894 | #ifdef HP100_DEBUG_B | |
895 | hp100_outw(0x4203, TRACE); | |
896 | printk("hp100: %s: mmuinit\n", dev->name); | |
897 | #endif | |
898 | ||
899 | #ifdef HP100_DEBUG | |
900 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { | |
901 | printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); | |
902 | return; | |
903 | } | |
904 | #endif | |
905 | ||
906 | /* Make sure IRQs are masked off and ack'ed. */ | |
907 | hp100_page(PERFORMANCE); | |
908 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
909 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
910 | ||
911 | /* | |
912 | * Enable Hardware | |
913 | * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En | |
914 | * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable | |
915 | * - Clear Priority, Advance Pkt and Xmit Cmd | |
916 | */ | |
917 | ||
918 | hp100_outw(HP100_DEBUG_EN | | |
919 | HP100_RX_HDR | | |
920 | HP100_EE_EN | HP100_RESET_HB | | |
921 | HP100_IO_EN | | |
922 | HP100_FAKE_INT | | |
923 | HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
924 | ||
925 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); | |
926 | ||
927 | if (lp->mode == 1) { /* busmaster */ | |
928 | hp100_outw(HP100_BM_WRITE | | |
929 | HP100_BM_READ | | |
930 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); | |
931 | } else if (lp->mode == 2) { /* memory mapped */ | |
932 | hp100_outw(HP100_BM_WRITE | | |
933 | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
934 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); | |
935 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
936 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
937 | } else if (lp->mode == 3) { /* i/o mapped mode */ | |
938 | hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | | |
939 | HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
940 | } | |
941 | ||
942 | hp100_page(HW_MAP); | |
943 | hp100_outb(0, EARLYRXCFG); | |
944 | hp100_outw(0, EARLYTXCFG); | |
945 | ||
946 | /* | |
947 | * Enable Bus Master mode | |
948 | */ | |
949 | if (lp->mode == 1) { /* busmaster */ | |
950 | /* Experimental: Set some PCI configuration bits */ | |
951 | hp100_page(HW_MAP); | |
952 | hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ | |
953 | hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ | |
954 | ||
955 | /* PCI Bus failures should result in a Misc. Interrupt */ | |
956 | hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); | |
957 | ||
958 | hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); | |
959 | hp100_page(HW_MAP); | |
960 | /* Use Burst Mode and switch on PAGE_CK */ | |
961 | hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); | |
962 | if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) | |
963 | hp100_orb(HP100_BM_PAGE_CK, BM); | |
964 | hp100_orb(HP100_BM_MASTER, BM); | |
965 | } else { /* not busmaster */ | |
966 | ||
967 | hp100_page(HW_MAP); | |
968 | hp100_andb(~HP100_BM_MASTER, BM); | |
969 | } | |
970 | ||
971 | /* | |
972 | * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs | |
973 | */ | |
974 | hp100_page(MMU_CFG); | |
975 | if (lp->mode == 1) { /* only needed for Busmaster */ | |
976 | int xmit_stop, recv_stop; | |
977 | ||
978 | if ((lp->chip == HP100_CHIPID_RAINIER) | |
979 | || (lp->chip == HP100_CHIPID_SHASTA)) { | |
980 | int pdl_stop; | |
981 | ||
982 | /* | |
983 | * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and | |
984 | * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded | |
985 | * to the next higher 1k boundary) bytes for the rx-pdl's | |
986 | * Note: For non-etr chips the transmit stop register must be | |
987 | * programmed on a 1k boundary, i.e. bits 9:0 must be zero. | |
988 | */ | |
989 | pdl_stop = lp->memory_size; | |
990 | xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); | |
991 | recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); | |
992 | hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); | |
993 | #ifdef HP100_DEBUG_BM | |
994 | printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); | |
995 | #endif | |
996 | } else { | |
997 | /* ETR chip (Lassen) in busmaster mode */ | |
998 | xmit_stop = (lp->memory_size) - 1; | |
999 | recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); | |
1000 | } | |
1001 | ||
1002 | hp100_outw(xmit_stop >> 4, TX_MEM_STOP); | |
1003 | hp100_outw(recv_stop >> 4, RX_MEM_STOP); | |
1004 | #ifdef HP100_DEBUG_BM | |
1005 | printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); | |
1006 | printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); | |
1007 | #endif | |
1008 | } else { | |
1009 | /* Slave modes (memory mapped and programmed io) */ | |
1010 | hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); | |
1011 | hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); | |
1012 | #ifdef HP100_DEBUG | |
1013 | printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); | |
1014 | printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); | |
1015 | #endif | |
1016 | } | |
1017 | ||
1018 | /* Write MAC address into page 1 */ | |
1019 | hp100_page(MAC_ADDRESS); | |
1020 | for (i = 0; i < 6; i++) | |
1021 | hp100_outb(dev->dev_addr[i], MAC_ADDR + i); | |
1022 | ||
1023 | /* Zero the multicast hash registers */ | |
1024 | for (i = 0; i < 8; i++) | |
1025 | hp100_outb(0x0, HASH_BYTE0 + i); | |
1026 | ||
1027 | /* Set up MAC defaults */ | |
1028 | hp100_page(MAC_CTRL); | |
1029 | ||
1030 | /* Go to LAN Page and zero all filter bits */ | |
1031 | /* Zero accept error, accept multicast, accept broadcast and accept */ | |
1032 | /* all directed packet bits */ | |
1033 | hp100_andb(~(HP100_RX_EN | | |
1034 | HP100_TX_EN | | |
1035 | HP100_ACC_ERRORED | | |
1036 | HP100_ACC_MC | | |
1037 | HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); | |
1038 | ||
1039 | hp100_outb(0x00, MAC_CFG_2); | |
1040 | ||
1041 | /* Zero the frame format bit. This works around a training bug in the */ | |
1042 | /* new hubs. */ | |
1043 | hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ | |
1044 | ||
1045 | if (lp->priority_tx) | |
1046 | hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); | |
1047 | else | |
1048 | hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); | |
1049 | ||
1050 | hp100_outb(HP100_ADV_NXT_PKT | | |
1051 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); | |
1052 | ||
1053 | /* If busmaster, initialize the PDLs */ | |
1054 | if (lp->mode == 1) | |
1055 | hp100_init_pdls(dev); | |
1056 | ||
1057 | /* Go to performance page and initalize isr and imr registers */ | |
1058 | hp100_page(PERFORMANCE); | |
1059 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
1060 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
1061 | } | |
1062 | ||
1063 | /* | |
1064 | * open/close functions | |
1065 | */ | |
1066 | ||
1067 | static int hp100_open(struct net_device *dev) | |
1068 | { | |
1069 | struct hp100_private *lp = netdev_priv(dev); | |
1070 | #ifdef HP100_DEBUG_B | |
1071 | int ioaddr = dev->base_addr; | |
1072 | #endif | |
1073 | ||
1074 | #ifdef HP100_DEBUG_B | |
1075 | hp100_outw(0x4204, TRACE); | |
1076 | printk("hp100: %s: open\n", dev->name); | |
1077 | #endif | |
1078 | ||
1079 | /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ | |
1080 | if (request_irq(dev->irq, hp100_interrupt, | |
1081 | lp->bus == HP100_BUS_PCI || lp->bus == | |
1082 | HP100_BUS_EISA ? SA_SHIRQ : SA_INTERRUPT, | |
1083 | "hp100", dev)) { | |
1084 | printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); | |
1085 | return -EAGAIN; | |
1086 | } | |
1087 | ||
1088 | dev->trans_start = jiffies; | |
1089 | netif_start_queue(dev); | |
1090 | ||
1091 | lp->lan_type = hp100_sense_lan(dev); | |
1092 | lp->mac1_mode = HP100_MAC1MODE3; | |
1093 | lp->mac2_mode = HP100_MAC2MODE3; | |
1094 | memset(&lp->hash_bytes, 0x00, 8); | |
1095 | ||
1096 | hp100_stop_interface(dev); | |
1097 | ||
1098 | hp100_hwinit(dev); | |
1099 | ||
1100 | hp100_start_interface(dev); /* sets mac modes, enables interrupts */ | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | /* The close function is called when the interface is to be brought down */ | |
1106 | static int hp100_close(struct net_device *dev) | |
1107 | { | |
1108 | int ioaddr = dev->base_addr; | |
1109 | struct hp100_private *lp = netdev_priv(dev); | |
1110 | ||
1111 | #ifdef HP100_DEBUG_B | |
1112 | hp100_outw(0x4205, TRACE); | |
1113 | printk("hp100: %s: close\n", dev->name); | |
1114 | #endif | |
1115 | ||
1116 | hp100_page(PERFORMANCE); | |
1117 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ | |
1118 | ||
1119 | hp100_stop_interface(dev); | |
1120 | ||
1121 | if (lp->lan_type == HP100_LAN_100) | |
1122 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1123 | ||
1124 | netif_stop_queue(dev); | |
1125 | ||
1126 | free_irq(dev->irq, dev); | |
1127 | ||
1128 | #ifdef HP100_DEBUG | |
1129 | printk("hp100: %s: close LSW = 0x%x\n", dev->name, | |
1130 | hp100_inw(OPTION_LSW)); | |
1131 | #endif | |
1132 | ||
1133 | return 0; | |
1134 | } | |
1135 | \f | |
1136 | ||
1137 | /* | |
1138 | * Configure the PDL Rx rings and LAN | |
1139 | */ | |
1140 | static void hp100_init_pdls(struct net_device *dev) | |
1141 | { | |
1142 | struct hp100_private *lp = netdev_priv(dev); | |
1143 | hp100_ring_t *ringptr; | |
1144 | u_int *pageptr; /* Warning : increment by 4 - Jean II */ | |
1145 | int i; | |
1146 | ||
1147 | #ifdef HP100_DEBUG_B | |
1148 | int ioaddr = dev->base_addr; | |
1149 | #endif | |
1150 | ||
1151 | #ifdef HP100_DEBUG_B | |
1152 | hp100_outw(0x4206, TRACE); | |
1153 | printk("hp100: %s: init pdls\n", dev->name); | |
1154 | #endif | |
1155 | ||
1156 | if (0 == lp->page_vaddr_algn) | |
1157 | printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); | |
1158 | else { | |
1159 | /* pageptr shall point into the DMA accessible memory region */ | |
1160 | /* we use this pointer to status the upper limit of allocated */ | |
1161 | /* memory in the allocated page. */ | |
1162 | /* note: align the pointers to the pci cache line size */ | |
1163 | memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ | |
1164 | pageptr = lp->page_vaddr_algn; | |
1165 | ||
1166 | lp->rxrcommit = 0; | |
1167 | ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); | |
1168 | ||
1169 | /* Initialise Rx Ring */ | |
1170 | for (i = MAX_RX_PDL - 1; i >= 0; i--) { | |
1171 | lp->rxring[i].next = ringptr; | |
1172 | ringptr = &(lp->rxring[i]); | |
1173 | pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); | |
1174 | } | |
1175 | ||
1176 | /* Initialise Tx Ring */ | |
1177 | lp->txrcommit = 0; | |
1178 | ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); | |
1179 | for (i = MAX_TX_PDL - 1; i >= 0; i--) { | |
1180 | lp->txring[i].next = ringptr; | |
1181 | ringptr = &(lp->txring[i]); | |
1182 | pageptr += hp100_init_txpdl(dev, ringptr, pageptr); | |
1183 | } | |
1184 | } | |
1185 | } | |
1186 | \f | |
1187 | ||
1188 | /* These functions "format" the entries in the pdl structure */ | |
1189 | /* They return how much memory the fragments need. */ | |
1190 | static int hp100_init_rxpdl(struct net_device *dev, | |
1191 | register hp100_ring_t * ringptr, | |
1192 | register u32 * pdlptr) | |
1193 | { | |
1194 | /* pdlptr is starting address for this pdl */ | |
1195 | ||
1196 | if (0 != (((unsigned long) pdlptr) & 0xf)) | |
1197 | printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", | |
1198 | dev->name, (unsigned long) pdlptr); | |
1199 | ||
1200 | ringptr->pdl = pdlptr + 1; | |
1201 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); | |
1202 | ringptr->skb = (void *) NULL; | |
1203 | ||
1204 | /* | |
1205 | * Write address and length of first PDL Fragment (which is used for | |
1206 | * storing the RX-Header | |
1207 | * We use the 4 bytes _before_ the PDH in the pdl memory area to | |
1208 | * store this information. (PDH is at offset 0x04) | |
1209 | */ | |
1210 | /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ | |
1211 | ||
1212 | *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ | |
1213 | *(pdlptr + 3) = 4; /* Length Frag 1 */ | |
1214 | ||
1215 | return ((((MAX_RX_FRAG * 2 + 2) + 3) / 4) * 4); | |
1216 | } | |
1217 | ||
1218 | ||
1219 | static int hp100_init_txpdl(struct net_device *dev, | |
1220 | register hp100_ring_t * ringptr, | |
1221 | register u32 * pdlptr) | |
1222 | { | |
1223 | if (0 != (((unsigned long) pdlptr) & 0xf)) | |
1224 | printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); | |
1225 | ||
1226 | ringptr->pdl = pdlptr; /* +1; */ | |
1227 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ | |
1228 | ringptr->skb = (void *) NULL; | |
1229 | ||
1230 | return ((((MAX_TX_FRAG * 2 + 2) + 3) / 4) * 4); | |
1231 | } | |
1232 | ||
1233 | /* | |
1234 | * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes | |
1235 | * for possible odd word alignment rounding up to next dword and set PDL | |
1236 | * address for fragment#2 | |
1237 | * Returns: 0 if unable to allocate skb_buff | |
1238 | * 1 if successful | |
1239 | */ | |
1240 | static int hp100_build_rx_pdl(hp100_ring_t * ringptr, | |
1241 | struct net_device *dev) | |
1242 | { | |
1243 | #ifdef HP100_DEBUG_B | |
1244 | int ioaddr = dev->base_addr; | |
1245 | #endif | |
1246 | #ifdef HP100_DEBUG_BM | |
1247 | u_int *p; | |
1248 | #endif | |
1249 | ||
1250 | #ifdef HP100_DEBUG_B | |
1251 | hp100_outw(0x4207, TRACE); | |
1252 | printk("hp100: %s: build rx pdl\n", dev->name); | |
1253 | #endif | |
1254 | ||
1255 | /* Allocate skb buffer of maximum size */ | |
1256 | /* Note: This depends on the alloc_skb functions allocating more | |
1257 | * space than requested, i.e. aligning to 16bytes */ | |
1258 | ||
1259 | ringptr->skb = dev_alloc_skb(((MAX_ETHER_SIZE + 2 + 3) / 4) * 4); | |
1260 | ||
1261 | if (NULL != ringptr->skb) { | |
1262 | /* | |
1263 | * Reserve 2 bytes at the head of the buffer to land the IP header | |
1264 | * on a long word boundary (According to the Network Driver section | |
1265 | * in the Linux KHG, this should help to increase performance.) | |
1266 | */ | |
1267 | skb_reserve(ringptr->skb, 2); | |
1268 | ||
1269 | ringptr->skb->dev = dev; | |
1270 | ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE); | |
1271 | ||
1272 | /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ | |
1273 | /* Note: 1st Fragment is used for the 4 byte packet status | |
1274 | * (receive header). Its PDL entries are set up by init_rxpdl. So | |
1275 | * here we only have to set up the PDL fragment entries for the data | |
1276 | * part. Those 4 bytes will be stored in the DMA memory region | |
1277 | * directly before the PDL. | |
1278 | */ | |
1279 | #ifdef HP100_DEBUG_BM | |
1280 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", | |
1281 | dev->name, (u_int) ringptr->pdl, | |
1282 | ((MAX_ETHER_SIZE + 2 + 3) / 4) * 4, | |
1283 | (unsigned int) ringptr->skb->data); | |
1284 | #endif | |
1285 | ||
1286 | /* Conversion to new PCI API : map skbuf data to PCI bus. | |
1287 | * Doc says it's OK for EISA as well - Jean II */ | |
1288 | ringptr->pdl[0] = 0x00020000; /* Write PDH */ | |
1289 | ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), | |
1290 | ringptr->skb->data); | |
1291 | ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ | |
1292 | ||
1293 | #ifdef HP100_DEBUG_BM | |
1294 | for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) | |
1295 | printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); | |
1296 | #endif | |
1297 | return (1); | |
1298 | } | |
1299 | /* else: */ | |
1300 | /* alloc_skb failed (no memory) -> still can receive the header | |
1301 | * fragment into PDL memory. make PDL safe by clearing msgptr and | |
1302 | * making the PDL only 1 fragment (i.e. the 4 byte packet status) | |
1303 | */ | |
1304 | #ifdef HP100_DEBUG_BM | |
1305 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); | |
1306 | #endif | |
1307 | ||
1308 | ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ | |
1309 | ||
1310 | return (0); | |
1311 | } | |
1312 | ||
1313 | /* | |
1314 | * hp100_rxfill - attempt to fill the Rx Ring will empty skb's | |
1315 | * | |
1316 | * Makes assumption that skb's are always contiguous memory areas and | |
1317 | * therefore PDLs contain only 2 physical fragments. | |
1318 | * - While the number of Rx PDLs with buffers is less than maximum | |
1319 | * a. Get a maximum packet size skb | |
1320 | * b. Put the physical address of the buffer into the PDL. | |
1321 | * c. Output physical address of PDL to adapter. | |
1322 | */ | |
1323 | static void hp100_rxfill(struct net_device *dev) | |
1324 | { | |
1325 | int ioaddr = dev->base_addr; | |
1326 | ||
1327 | struct hp100_private *lp = netdev_priv(dev); | |
1328 | hp100_ring_t *ringptr; | |
1329 | ||
1330 | #ifdef HP100_DEBUG_B | |
1331 | hp100_outw(0x4208, TRACE); | |
1332 | printk("hp100: %s: rxfill\n", dev->name); | |
1333 | #endif | |
1334 | ||
1335 | hp100_page(PERFORMANCE); | |
1336 | ||
1337 | while (lp->rxrcommit < MAX_RX_PDL) { | |
1338 | /* | |
1339 | ** Attempt to get a buffer and build a Rx PDL. | |
1340 | */ | |
1341 | ringptr = lp->rxrtail; | |
1342 | if (0 == hp100_build_rx_pdl(ringptr, dev)) { | |
1343 | return; /* None available, return */ | |
1344 | } | |
1345 | ||
1346 | /* Hand this PDL over to the card */ | |
1347 | /* Note: This needs performance page selected! */ | |
1348 | #ifdef HP100_DEBUG_BM | |
1349 | printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", | |
1350 | dev->name, lp->rxrcommit, (u_int) ringptr->pdl, | |
1351 | (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); | |
1352 | #endif | |
1353 | ||
1354 | hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); | |
1355 | ||
1356 | lp->rxrcommit += 1; | |
1357 | lp->rxrtail = ringptr->next; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | /* | |
1362 | * BM_shutdown - shutdown bus mastering and leave chip in reset state | |
1363 | */ | |
1364 | ||
1365 | static void hp100_BM_shutdown(struct net_device *dev) | |
1366 | { | |
1367 | int ioaddr = dev->base_addr; | |
1368 | struct hp100_private *lp = netdev_priv(dev); | |
1369 | unsigned long time; | |
1370 | ||
1371 | #ifdef HP100_DEBUG_B | |
1372 | hp100_outw(0x4209, TRACE); | |
1373 | printk("hp100: %s: bm shutdown\n", dev->name); | |
1374 | #endif | |
1375 | ||
1376 | hp100_page(PERFORMANCE); | |
1377 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
1378 | hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ | |
1379 | ||
1380 | /* Ensure Interrupts are off */ | |
1381 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
1382 | ||
1383 | /* Disable all MAC activity */ | |
1384 | hp100_page(MAC_CTRL); | |
1385 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ | |
1386 | ||
1387 | /* If cascade MMU is not already in reset */ | |
1388 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { | |
1389 | /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so | |
1390 | * MMU pointers will not be reset out from underneath | |
1391 | */ | |
1392 | hp100_page(MAC_CTRL); | |
1393 | for (time = 0; time < 5000; time++) { | |
1394 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | /* Shutdown algorithm depends on the generation of Cascade */ | |
1399 | if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ | |
1400 | /* Disable Busmaster mode and wait for bit to go to zero. */ | |
1401 | hp100_page(HW_MAP); | |
1402 | hp100_andb(~HP100_BM_MASTER, BM); | |
1403 | /* 100 ms timeout */ | |
1404 | for (time = 0; time < 32000; time++) { | |
1405 | if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) | |
1406 | break; | |
1407 | } | |
1408 | } else { /* Shasta or Rainier Shutdown/Reset */ | |
1409 | /* To ensure all bus master inloading activity has ceased, | |
1410 | * wait for no Rx PDAs or no Rx packets on card. | |
1411 | */ | |
1412 | hp100_page(PERFORMANCE); | |
1413 | /* 100 ms timeout */ | |
1414 | for (time = 0; time < 10000; time++) { | |
1415 | /* RX_PDL: PDLs not executed. */ | |
1416 | /* RX_PKT_CNT: RX'd packets on card. */ | |
1417 | if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) | |
1418 | break; | |
1419 | } | |
1420 | ||
1421 | if (time >= 10000) | |
1422 | printk("hp100: %s: BM shutdown error.\n", dev->name); | |
1423 | ||
1424 | /* To ensure all bus master outloading activity has ceased, | |
1425 | * wait until the Tx PDA count goes to zero or no more Tx space | |
1426 | * available in the Tx region of the card. | |
1427 | */ | |
1428 | /* 100 ms timeout */ | |
1429 | for (time = 0; time < 10000; time++) { | |
1430 | if ((0 == hp100_inb(TX_PKT_CNT)) && | |
1431 | (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) | |
1432 | break; | |
1433 | } | |
1434 | ||
1435 | /* Disable Busmaster mode */ | |
1436 | hp100_page(HW_MAP); | |
1437 | hp100_andb(~HP100_BM_MASTER, BM); | |
1438 | } /* end of shutdown procedure for non-etr parts */ | |
1439 | ||
1440 | hp100_cascade_reset(dev, 1); | |
1441 | } | |
1442 | hp100_page(PERFORMANCE); | |
1443 | /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ | |
1444 | /* Busmaster mode should be shut down now. */ | |
1445 | } | |
1446 | ||
1447 | static int hp100_check_lan(struct net_device *dev) | |
1448 | { | |
1449 | struct hp100_private *lp = netdev_priv(dev); | |
1450 | ||
1451 | if (lp->lan_type < 0) { /* no LAN type detected yet? */ | |
1452 | hp100_stop_interface(dev); | |
1453 | if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { | |
1454 | printk("hp100: %s: no connection found - check wire\n", dev->name); | |
1455 | hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ | |
1456 | return -EIO; | |
1457 | } | |
1458 | if (lp->lan_type == HP100_LAN_100) | |
1459 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ | |
1460 | hp100_start_interface(dev); | |
1461 | } | |
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | /* | |
1466 | * transmit functions | |
1467 | */ | |
1468 | ||
1469 | /* tx function for busmaster mode */ | |
1470 | static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev) | |
1471 | { | |
1472 | unsigned long flags; | |
1473 | int i, ok_flag; | |
1474 | int ioaddr = dev->base_addr; | |
1475 | struct hp100_private *lp = netdev_priv(dev); | |
1476 | hp100_ring_t *ringptr; | |
1477 | ||
1478 | #ifdef HP100_DEBUG_B | |
1479 | hp100_outw(0x4210, TRACE); | |
1480 | printk("hp100: %s: start_xmit_bm\n", dev->name); | |
1481 | #endif | |
1482 | ||
1483 | if (skb == NULL) { | |
1484 | return 0; | |
1485 | } | |
1486 | ||
1487 | if (skb->len <= 0) | |
1488 | return 0; | |
1489 | ||
5b057c6b HX |
1490 | if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) |
1491 | return 0; | |
1da177e4 LT |
1492 | |
1493 | /* Get Tx ring tail pointer */ | |
1494 | if (lp->txrtail->next == lp->txrhead) { | |
1495 | /* No memory. */ | |
1496 | #ifdef HP100_DEBUG | |
1497 | printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); | |
1498 | #endif | |
1499 | /* not waited long enough since last tx? */ | |
ff5688ae | 1500 | if (time_before(jiffies, dev->trans_start + HZ)) |
1da177e4 LT |
1501 | return -EAGAIN; |
1502 | ||
1503 | if (hp100_check_lan(dev)) | |
1504 | return -EIO; | |
1505 | ||
1506 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { | |
1507 | /* we have a 100Mb/s adapter but it isn't connected to hub */ | |
1508 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); | |
1509 | hp100_stop_interface(dev); | |
1510 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1511 | hp100_start_interface(dev); | |
1512 | } else { | |
1513 | spin_lock_irqsave(&lp->lock, flags); | |
1514 | hp100_ints_off(); /* Useful ? Jean II */ | |
1515 | i = hp100_sense_lan(dev); | |
1516 | hp100_ints_on(); | |
1517 | spin_unlock_irqrestore(&lp->lock, flags); | |
1518 | if (i == HP100_LAN_ERR) | |
1519 | printk("hp100: %s: link down detected\n", dev->name); | |
1520 | else if (lp->lan_type != i) { /* cable change! */ | |
1521 | /* it's very hard - all network settings must be changed!!! */ | |
1522 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); | |
1523 | lp->lan_type = i; | |
1524 | hp100_stop_interface(dev); | |
1525 | if (lp->lan_type == HP100_LAN_100) | |
1526 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1527 | hp100_start_interface(dev); | |
1528 | } else { | |
1529 | printk("hp100: %s: interface reset\n", dev->name); | |
1530 | hp100_stop_interface(dev); | |
1531 | if (lp->lan_type == HP100_LAN_100) | |
1532 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1533 | hp100_start_interface(dev); | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | dev->trans_start = jiffies; | |
1538 | return -EAGAIN; | |
1539 | } | |
1540 | ||
1541 | /* | |
1542 | * we have to turn int's off before modifying this, otherwise | |
1543 | * a tx_pdl_cleanup could occur at the same time | |
1544 | */ | |
1545 | spin_lock_irqsave(&lp->lock, flags); | |
1546 | ringptr = lp->txrtail; | |
1547 | lp->txrtail = ringptr->next; | |
1548 | ||
1549 | /* Check whether packet has minimal packet size */ | |
1550 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; | |
1551 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; | |
1552 | ||
1553 | ringptr->skb = skb; | |
1554 | ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ | |
1555 | if (lp->chip == HP100_CHIPID_SHASTA) { | |
1556 | /* TODO:Could someone who has the EISA card please check if this works? */ | |
1557 | ringptr->pdl[2] = i; | |
1558 | } else { /* Lassen */ | |
1559 | /* In the PDL, don't use the padded size but the real packet size: */ | |
1560 | ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ | |
1561 | } | |
1562 | /* Conversion to new PCI API : map skbuf data to PCI bus. | |
1563 | * Doc says it's OK for EISA as well - Jean II */ | |
1564 | ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ | |
1565 | ||
1566 | /* Hand this PDL to the card. */ | |
1567 | hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ | |
1568 | ||
1569 | lp->txrcommit++; | |
1570 | spin_unlock_irqrestore(&lp->lock, flags); | |
1571 | ||
1572 | /* Update statistics */ | |
1573 | lp->stats.tx_packets++; | |
1574 | lp->stats.tx_bytes += skb->len; | |
1575 | dev->trans_start = jiffies; | |
1576 | ||
1577 | return 0; | |
1578 | } | |
1579 | \f | |
1580 | ||
1581 | /* clean_txring checks if packets have been sent by the card by reading | |
1582 | * the TX_PDL register from the performance page and comparing it to the | |
1583 | * number of commited packets. It then frees the skb's of the packets that | |
1584 | * obviously have been sent to the network. | |
1585 | * | |
1586 | * Needs the PERFORMANCE page selected. | |
1587 | */ | |
1588 | static void hp100_clean_txring(struct net_device *dev) | |
1589 | { | |
1590 | struct hp100_private *lp = netdev_priv(dev); | |
1591 | int ioaddr = dev->base_addr; | |
1592 | int donecount; | |
1593 | ||
1594 | #ifdef HP100_DEBUG_B | |
1595 | hp100_outw(0x4211, TRACE); | |
1596 | printk("hp100: %s: clean txring\n", dev->name); | |
1597 | #endif | |
1598 | ||
1599 | /* How many PDLs have been transmitted? */ | |
1600 | donecount = (lp->txrcommit) - hp100_inb(TX_PDL); | |
1601 | ||
1602 | #ifdef HP100_DEBUG | |
1603 | if (donecount > MAX_TX_PDL) | |
1604 | printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name); | |
1605 | #endif | |
1606 | ||
1607 | for (; 0 != donecount; donecount--) { | |
1608 | #ifdef HP100_DEBUG_BM | |
1609 | printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", | |
1610 | dev->name, (u_int) lp->txrhead->skb->data, | |
1611 | lp->txrcommit, hp100_inb(TX_PDL), donecount); | |
1612 | #endif | |
1613 | /* Conversion to new PCI API : NOP */ | |
1614 | pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); | |
1615 | dev_kfree_skb_any(lp->txrhead->skb); | |
1616 | lp->txrhead->skb = (void *) NULL; | |
1617 | lp->txrhead = lp->txrhead->next; | |
1618 | lp->txrcommit--; | |
1619 | } | |
1620 | } | |
1621 | ||
1622 | /* tx function for slave modes */ | |
1623 | static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1624 | { | |
1625 | unsigned long flags; | |
1626 | int i, ok_flag; | |
1627 | int ioaddr = dev->base_addr; | |
1628 | u_short val; | |
1629 | struct hp100_private *lp = netdev_priv(dev); | |
1630 | ||
1631 | #ifdef HP100_DEBUG_B | |
1632 | hp100_outw(0x4212, TRACE); | |
1633 | printk("hp100: %s: start_xmit\n", dev->name); | |
1634 | #endif | |
1635 | ||
1636 | if (skb == NULL) { | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | if (skb->len <= 0) | |
1641 | return 0; | |
1642 | ||
1643 | if (hp100_check_lan(dev)) | |
1644 | return -EIO; | |
1645 | ||
1646 | /* If there is not enough free memory on the card... */ | |
1647 | i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; | |
1648 | if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { | |
1649 | #ifdef HP100_DEBUG | |
1650 | printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); | |
1651 | #endif | |
1652 | /* not waited long enough since last failed tx try? */ | |
ff5688ae | 1653 | if (time_before(jiffies, dev->trans_start + HZ)) { |
1da177e4 LT |
1654 | #ifdef HP100_DEBUG |
1655 | printk("hp100: %s: trans_start timing problem\n", | |
1656 | dev->name); | |
1657 | #endif | |
1658 | return -EAGAIN; | |
1659 | } | |
1660 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { | |
1661 | /* we have a 100Mb/s adapter but it isn't connected to hub */ | |
1662 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); | |
1663 | hp100_stop_interface(dev); | |
1664 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1665 | hp100_start_interface(dev); | |
1666 | } else { | |
1667 | spin_lock_irqsave(&lp->lock, flags); | |
1668 | hp100_ints_off(); /* Useful ? Jean II */ | |
1669 | i = hp100_sense_lan(dev); | |
1670 | hp100_ints_on(); | |
1671 | spin_unlock_irqrestore(&lp->lock, flags); | |
1672 | if (i == HP100_LAN_ERR) | |
1673 | printk("hp100: %s: link down detected\n", dev->name); | |
1674 | else if (lp->lan_type != i) { /* cable change! */ | |
1675 | /* it's very hard - all network setting must be changed!!! */ | |
1676 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); | |
1677 | lp->lan_type = i; | |
1678 | hp100_stop_interface(dev); | |
1679 | if (lp->lan_type == HP100_LAN_100) | |
1680 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1681 | hp100_start_interface(dev); | |
1682 | } else { | |
1683 | printk("hp100: %s: interface reset\n", dev->name); | |
1684 | hp100_stop_interface(dev); | |
1685 | if (lp->lan_type == HP100_LAN_100) | |
1686 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1687 | hp100_start_interface(dev); | |
1688 | mdelay(1); | |
1689 | } | |
1690 | } | |
1691 | dev->trans_start = jiffies; | |
1692 | return -EAGAIN; | |
1693 | } | |
1694 | ||
1695 | for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { | |
1696 | #ifdef HP100_DEBUG_TX | |
1697 | printk("hp100: %s: start_xmit: busy\n", dev->name); | |
1698 | #endif | |
1699 | } | |
1700 | ||
1701 | spin_lock_irqsave(&lp->lock, flags); | |
1702 | hp100_ints_off(); | |
1703 | val = hp100_inw(IRQ_STATUS); | |
1704 | /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set | |
1705 | * when the current packet being transmitted on the wire is completed. */ | |
1706 | hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); | |
1707 | #ifdef HP100_DEBUG_TX | |
1708 | printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", | |
1709 | dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); | |
1710 | #endif | |
1711 | ||
1712 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; | |
1713 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; | |
1714 | ||
1715 | hp100_outw(i, DATA32); /* tell card the total packet length */ | |
1716 | hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ | |
1717 | ||
1718 | if (lp->mode == 2) { /* memory mapped */ | |
450d86df AV |
1719 | /* Note: The J2585B needs alignment to 32bits here! */ |
1720 | memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); | |
1721 | if (!ok_flag) | |
1722 | memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); | |
1da177e4 LT |
1723 | } else { /* programmed i/o */ |
1724 | outsl(ioaddr + HP100_REG_DATA32, skb->data, | |
1725 | (skb->len + 3) >> 2); | |
1726 | if (!ok_flag) | |
1727 | for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) | |
1728 | hp100_outl(0, DATA32); | |
1729 | } | |
1730 | ||
1731 | hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ | |
1732 | ||
1733 | lp->stats.tx_packets++; | |
1734 | lp->stats.tx_bytes += skb->len; | |
1735 | dev->trans_start = jiffies; | |
1736 | hp100_ints_on(); | |
1737 | spin_unlock_irqrestore(&lp->lock, flags); | |
1738 | ||
1739 | dev_kfree_skb_any(skb); | |
1740 | ||
1741 | #ifdef HP100_DEBUG_TX | |
1742 | printk("hp100: %s: start_xmit: end\n", dev->name); | |
1743 | #endif | |
1744 | ||
1745 | return 0; | |
1746 | } | |
1747 | \f | |
1748 | ||
1749 | /* | |
1750 | * Receive Function (Non-Busmaster mode) | |
1751 | * Called when an "Receive Packet" interrupt occurs, i.e. the receive | |
1752 | * packet counter is non-zero. | |
1753 | * For non-busmaster, this function does the whole work of transfering | |
1754 | * the packet to the host memory and then up to higher layers via skb | |
1755 | * and netif_rx. | |
1756 | */ | |
1757 | ||
1758 | static void hp100_rx(struct net_device *dev) | |
1759 | { | |
1760 | int packets, pkt_len; | |
1761 | int ioaddr = dev->base_addr; | |
1762 | struct hp100_private *lp = netdev_priv(dev); | |
1763 | u_int header; | |
1764 | struct sk_buff *skb; | |
1765 | ||
1766 | #ifdef DEBUG_B | |
1767 | hp100_outw(0x4213, TRACE); | |
1768 | printk("hp100: %s: rx\n", dev->name); | |
1769 | #endif | |
1770 | ||
1771 | /* First get indication of received lan packet */ | |
1772 | /* RX_PKT_CND indicates the number of packets which have been fully */ | |
1773 | /* received onto the card but have not been fully transferred of the card */ | |
1774 | packets = hp100_inb(RX_PKT_CNT); | |
1775 | #ifdef HP100_DEBUG_RX | |
1776 | if (packets > 1) | |
1777 | printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); | |
1778 | #endif | |
1779 | ||
1780 | while (packets-- > 0) { | |
1781 | /* If ADV_NXT_PKT is still set, we have to wait until the card has */ | |
1782 | /* really advanced to the next packet. */ | |
1783 | for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { | |
1784 | #ifdef HP100_DEBUG_RX | |
1785 | printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); | |
1786 | #endif | |
1787 | } | |
1788 | ||
1789 | /* First we get the header, which contains information about the */ | |
1790 | /* actual length of the received packet. */ | |
1791 | if (lp->mode == 2) { /* memory mapped mode */ | |
450d86df | 1792 | header = readl(lp->mem_ptr_virt); |
1da177e4 LT |
1793 | } else /* programmed i/o */ |
1794 | header = hp100_inl(DATA32); | |
1795 | ||
1796 | pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; | |
1797 | ||
1798 | #ifdef HP100_DEBUG_RX | |
1799 | printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", | |
1800 | dev->name, header & HP100_PKT_LEN_MASK, | |
1801 | (header >> 16) & 0xfff8, (header >> 16) & 7); | |
1802 | #endif | |
1803 | ||
1804 | /* Now we allocate the skb and transfer the data into it. */ | |
1805 | skb = dev_alloc_skb(pkt_len+2); | |
1806 | if (skb == NULL) { /* Not enough memory->drop packet */ | |
1807 | #ifdef HP100_DEBUG | |
1808 | printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", | |
1809 | dev->name, pkt_len); | |
1810 | #endif | |
1811 | lp->stats.rx_dropped++; | |
1812 | } else { /* skb successfully allocated */ | |
1813 | ||
1814 | u_char *ptr; | |
1815 | ||
1816 | skb_reserve(skb,2); | |
1817 | skb->dev = dev; | |
1818 | ||
1819 | /* ptr to start of the sk_buff data area */ | |
1820 | skb_put(skb, pkt_len); | |
1821 | ptr = skb->data; | |
1822 | ||
1823 | /* Now transfer the data from the card into that area */ | |
450d86df AV |
1824 | if (lp->mode == 2) |
1825 | memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); | |
1826 | else /* io mapped */ | |
1da177e4 LT |
1827 | insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); |
1828 | ||
1829 | skb->protocol = eth_type_trans(skb, dev); | |
1830 | ||
1831 | #ifdef HP100_DEBUG_RX | |
1832 | printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", | |
1833 | dev->name, ptr[0], ptr[1], ptr[2], ptr[3], | |
1834 | ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], | |
1835 | ptr[9], ptr[10], ptr[11]); | |
1836 | #endif | |
1837 | netif_rx(skb); | |
1838 | dev->last_rx = jiffies; | |
1839 | lp->stats.rx_packets++; | |
1840 | lp->stats.rx_bytes += pkt_len; | |
1841 | } | |
1842 | ||
1843 | /* Indicate the card that we have got the packet */ | |
1844 | hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); | |
1845 | ||
1846 | switch (header & 0x00070000) { | |
1847 | case (HP100_MULTI_ADDR_HASH << 16): | |
1848 | case (HP100_MULTI_ADDR_NO_HASH << 16): | |
1849 | lp->stats.multicast++; | |
1850 | break; | |
1851 | } | |
1852 | } /* end of while(there are packets) loop */ | |
1853 | #ifdef HP100_DEBUG_RX | |
1854 | printk("hp100_rx: %s: end\n", dev->name); | |
1855 | #endif | |
1856 | } | |
1857 | ||
1858 | /* | |
1859 | * Receive Function for Busmaster Mode | |
1860 | */ | |
1861 | static void hp100_rx_bm(struct net_device *dev) | |
1862 | { | |
1863 | int ioaddr = dev->base_addr; | |
1864 | struct hp100_private *lp = netdev_priv(dev); | |
1865 | hp100_ring_t *ptr; | |
1866 | u_int header; | |
1867 | int pkt_len; | |
1868 | ||
1869 | #ifdef HP100_DEBUG_B | |
1870 | hp100_outw(0x4214, TRACE); | |
1871 | printk("hp100: %s: rx_bm\n", dev->name); | |
1872 | #endif | |
1873 | ||
1874 | #ifdef HP100_DEBUG | |
1875 | if (0 == lp->rxrcommit) { | |
1876 | printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); | |
1877 | return; | |
1878 | } else | |
1879 | /* RX_PKT_CNT states how many PDLs are currently formatted and available to | |
1880 | * the cards BM engine */ | |
1881 | if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { | |
1882 | printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n", | |
1883 | dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, | |
1884 | lp->rxrcommit); | |
1885 | return; | |
1886 | } | |
1887 | #endif | |
1888 | ||
1889 | while ((lp->rxrcommit > hp100_inb(RX_PDL))) { | |
1890 | /* | |
1891 | * The packet was received into the pdl pointed to by lp->rxrhead ( | |
1892 | * the oldest pdl in the ring | |
1893 | */ | |
1894 | ||
1895 | /* First we get the header, which contains information about the */ | |
1896 | /* actual length of the received packet. */ | |
1897 | ||
1898 | ptr = lp->rxrhead; | |
1899 | ||
1900 | header = *(ptr->pdl - 1); | |
1901 | pkt_len = (header & HP100_PKT_LEN_MASK); | |
1902 | ||
1903 | /* Conversion to new PCI API : NOP */ | |
1904 | pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); | |
1905 | ||
1906 | #ifdef HP100_DEBUG_BM | |
1907 | printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", | |
1908 | dev->name, (u_int) (ptr->pdl - 1), (u_int) header, | |
1909 | pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); | |
1910 | printk("hp100: %s: RX_PDL_COUNT:0x%x TX_PDL_COUNT:0x%x, RX_PKT_CNT=0x%x PDH=0x%x, Data@0x%x len=0x%x\n", | |
1911 | dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), | |
1912 | hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), | |
1913 | (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); | |
1914 | #endif | |
1915 | ||
1916 | if ((pkt_len >= MIN_ETHER_SIZE) && | |
1917 | (pkt_len <= MAX_ETHER_SIZE)) { | |
1918 | if (ptr->skb == NULL) { | |
1919 | printk("hp100: %s: rx_bm: skb null\n", dev->name); | |
1920 | /* can happen if we only allocated room for the pdh due to memory shortage. */ | |
1921 | lp->stats.rx_dropped++; | |
1922 | } else { | |
1923 | skb_trim(ptr->skb, pkt_len); /* Shorten it */ | |
1924 | ptr->skb->protocol = | |
1925 | eth_type_trans(ptr->skb, dev); | |
1926 | ||
1927 | netif_rx(ptr->skb); /* Up and away... */ | |
1928 | ||
1929 | dev->last_rx = jiffies; | |
1930 | lp->stats.rx_packets++; | |
1931 | lp->stats.rx_bytes += pkt_len; | |
1932 | } | |
1933 | ||
1934 | switch (header & 0x00070000) { | |
1935 | case (HP100_MULTI_ADDR_HASH << 16): | |
1936 | case (HP100_MULTI_ADDR_NO_HASH << 16): | |
1937 | lp->stats.multicast++; | |
1938 | break; | |
1939 | } | |
1940 | } else { | |
1941 | #ifdef HP100_DEBUG | |
1942 | printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); | |
1943 | #endif | |
1944 | if (ptr->skb != NULL) | |
1945 | dev_kfree_skb_any(ptr->skb); | |
1946 | lp->stats.rx_errors++; | |
1947 | } | |
1948 | ||
1949 | lp->rxrhead = lp->rxrhead->next; | |
1950 | ||
1951 | /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ | |
1952 | if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { | |
1953 | /* No space for skb, header can still be received. */ | |
1954 | #ifdef HP100_DEBUG | |
1955 | printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); | |
1956 | #endif | |
1957 | return; | |
1958 | } else { /* successfully allocated new PDL - put it in ringlist at tail. */ | |
1959 | hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); | |
1960 | lp->rxrtail = lp->rxrtail->next; | |
1961 | } | |
1962 | ||
1963 | } | |
1964 | } | |
1965 | ||
1966 | /* | |
1967 | * statistics | |
1968 | */ | |
1969 | static struct net_device_stats *hp100_get_stats(struct net_device *dev) | |
1970 | { | |
1971 | unsigned long flags; | |
1972 | int ioaddr = dev->base_addr; | |
1973 | struct hp100_private *lp = netdev_priv(dev); | |
1974 | ||
1975 | #ifdef HP100_DEBUG_B | |
1976 | hp100_outw(0x4215, TRACE); | |
1977 | #endif | |
1978 | ||
1979 | spin_lock_irqsave(&lp->lock, flags); | |
1980 | hp100_ints_off(); /* Useful ? Jean II */ | |
1981 | hp100_update_stats(dev); | |
1982 | hp100_ints_on(); | |
1983 | spin_unlock_irqrestore(&lp->lock, flags); | |
1984 | return &(lp->stats); | |
1985 | } | |
1986 | ||
1987 | static void hp100_update_stats(struct net_device *dev) | |
1988 | { | |
1989 | int ioaddr = dev->base_addr; | |
1990 | u_short val; | |
1991 | struct hp100_private *lp = netdev_priv(dev); | |
1992 | ||
1993 | #ifdef HP100_DEBUG_B | |
1994 | hp100_outw(0x4216, TRACE); | |
1995 | printk("hp100: %s: update-stats\n", dev->name); | |
1996 | #endif | |
1997 | ||
1998 | /* Note: Statistics counters clear when read. */ | |
1999 | hp100_page(MAC_CTRL); | |
2000 | val = hp100_inw(DROPPED) & 0x0fff; | |
2001 | lp->stats.rx_errors += val; | |
2002 | lp->stats.rx_over_errors += val; | |
2003 | val = hp100_inb(CRC); | |
2004 | lp->stats.rx_errors += val; | |
2005 | lp->stats.rx_crc_errors += val; | |
2006 | val = hp100_inb(ABORT); | |
2007 | lp->stats.tx_errors += val; | |
2008 | lp->stats.tx_aborted_errors += val; | |
2009 | hp100_page(PERFORMANCE); | |
2010 | } | |
2011 | ||
2012 | static void hp100_misc_interrupt(struct net_device *dev) | |
2013 | { | |
2014 | #ifdef HP100_DEBUG_B | |
2015 | int ioaddr = dev->base_addr; | |
2016 | #endif | |
2017 | struct hp100_private *lp = netdev_priv(dev); | |
2018 | ||
2019 | #ifdef HP100_DEBUG_B | |
2020 | int ioaddr = dev->base_addr; | |
2021 | hp100_outw(0x4216, TRACE); | |
2022 | printk("hp100: %s: misc_interrupt\n", dev->name); | |
2023 | #endif | |
2024 | ||
2025 | /* Note: Statistics counters clear when read. */ | |
2026 | lp->stats.rx_errors++; | |
2027 | lp->stats.tx_errors++; | |
2028 | } | |
2029 | ||
2030 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) | |
2031 | { | |
2032 | unsigned long flags; | |
2033 | ||
2034 | #ifdef HP100_DEBUG_B | |
2035 | hp100_outw(0x4217, TRACE); | |
2036 | printk("hp100: %s: clear_stats\n", dev->name); | |
2037 | #endif | |
2038 | ||
2039 | spin_lock_irqsave(&lp->lock, flags); | |
2040 | hp100_page(MAC_CTRL); /* get all statistics bytes */ | |
2041 | hp100_inw(DROPPED); | |
2042 | hp100_inb(CRC); | |
2043 | hp100_inb(ABORT); | |
2044 | hp100_page(PERFORMANCE); | |
2045 | spin_unlock_irqrestore(&lp->lock, flags); | |
2046 | } | |
2047 | \f | |
2048 | ||
2049 | /* | |
2050 | * multicast setup | |
2051 | */ | |
2052 | ||
2053 | /* | |
2054 | * Set or clear the multicast filter for this adapter. | |
2055 | */ | |
2056 | ||
2057 | static void hp100_set_multicast_list(struct net_device *dev) | |
2058 | { | |
2059 | unsigned long flags; | |
2060 | int ioaddr = dev->base_addr; | |
2061 | struct hp100_private *lp = netdev_priv(dev); | |
2062 | ||
2063 | #ifdef HP100_DEBUG_B | |
2064 | hp100_outw(0x4218, TRACE); | |
2065 | printk("hp100: %s: set_mc_list\n", dev->name); | |
2066 | #endif | |
2067 | ||
2068 | spin_lock_irqsave(&lp->lock, flags); | |
2069 | hp100_ints_off(); | |
2070 | hp100_page(MAC_CTRL); | |
2071 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ | |
2072 | ||
2073 | if (dev->flags & IFF_PROMISC) { | |
2074 | lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ | |
2075 | lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ | |
2076 | memset(&lp->hash_bytes, 0xff, 8); | |
2077 | } else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { | |
2078 | lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ | |
2079 | lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ | |
2080 | #ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ | |
2081 | if (dev->flags & IFF_ALLMULTI) { | |
2082 | /* set hash filter to receive all multicast packets */ | |
2083 | memset(&lp->hash_bytes, 0xff, 8); | |
2084 | } else { | |
2085 | int i, j, idx; | |
2086 | u_char *addrs; | |
2087 | struct dev_mc_list *dmi; | |
2088 | ||
2089 | memset(&lp->hash_bytes, 0x00, 8); | |
2090 | #ifdef HP100_DEBUG | |
2091 | printk("hp100: %s: computing hash filter - mc_count = %i\n", dev->name, dev->mc_count); | |
2092 | #endif | |
2093 | for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) { | |
2094 | addrs = dmi->dmi_addr; | |
2095 | if ((*addrs & 0x01) == 0x01) { /* multicast address? */ | |
2096 | #ifdef HP100_DEBUG | |
2097 | printk("hp100: %s: multicast = %02x:%02x:%02x:%02x:%02x:%02x, ", | |
2098 | dev->name, addrs[0], addrs[1], addrs[2], | |
2099 | addrs[3], addrs[4], addrs[5]); | |
2100 | #endif | |
2101 | for (j = idx = 0; j < 6; j++) { | |
2102 | idx ^= *addrs++ & 0x3f; | |
2103 | printk(":%02x:", idx); | |
2104 | } | |
2105 | #ifdef HP100_DEBUG | |
2106 | printk("idx = %i\n", idx); | |
2107 | #endif | |
2108 | lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); | |
2109 | } | |
2110 | } | |
2111 | } | |
2112 | #else | |
2113 | memset(&lp->hash_bytes, 0xff, 8); | |
2114 | #endif | |
2115 | } else { | |
2116 | lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ | |
2117 | lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ | |
2118 | memset(&lp->hash_bytes, 0x00, 8); | |
2119 | } | |
2120 | ||
2121 | if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || | |
2122 | (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { | |
2123 | int i; | |
2124 | ||
2125 | hp100_outb(lp->mac2_mode, MAC_CFG_2); | |
2126 | hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ | |
2127 | hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ | |
2128 | ||
2129 | hp100_page(MAC_ADDRESS); | |
2130 | for (i = 0; i < 8; i++) | |
2131 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); | |
2132 | #ifdef HP100_DEBUG | |
2133 | printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", | |
2134 | dev->name, lp->mac1_mode, lp->mac2_mode, | |
2135 | lp->hash_bytes[0], lp->hash_bytes[1], | |
2136 | lp->hash_bytes[2], lp->hash_bytes[3], | |
2137 | lp->hash_bytes[4], lp->hash_bytes[5], | |
2138 | lp->hash_bytes[6], lp->hash_bytes[7]); | |
2139 | #endif | |
2140 | ||
2141 | if (lp->lan_type == HP100_LAN_100) { | |
2142 | #ifdef HP100_DEBUG | |
2143 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); | |
2144 | #endif | |
2145 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ | |
2146 | } | |
2147 | } else { | |
2148 | int i; | |
2149 | u_char old_hash_bytes[8]; | |
2150 | ||
2151 | hp100_page(MAC_ADDRESS); | |
2152 | for (i = 0; i < 8; i++) | |
2153 | old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); | |
2154 | if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { | |
2155 | for (i = 0; i < 8; i++) | |
2156 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); | |
2157 | #ifdef HP100_DEBUG | |
2158 | printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", | |
2159 | dev->name, lp->hash_bytes[0], | |
2160 | lp->hash_bytes[1], lp->hash_bytes[2], | |
2161 | lp->hash_bytes[3], lp->hash_bytes[4], | |
2162 | lp->hash_bytes[5], lp->hash_bytes[6], | |
2163 | lp->hash_bytes[7]); | |
2164 | #endif | |
2165 | ||
2166 | if (lp->lan_type == HP100_LAN_100) { | |
2167 | #ifdef HP100_DEBUG | |
2168 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); | |
2169 | #endif | |
2170 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ | |
2171 | } | |
2172 | } | |
2173 | } | |
2174 | ||
2175 | hp100_page(MAC_CTRL); | |
2176 | hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ | |
2177 | HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ | |
2178 | ||
2179 | hp100_page(PERFORMANCE); | |
2180 | hp100_ints_on(); | |
2181 | spin_unlock_irqrestore(&lp->lock, flags); | |
2182 | } | |
2183 | ||
2184 | /* | |
2185 | * hardware interrupt handling | |
2186 | */ | |
2187 | ||
2188 | static irqreturn_t hp100_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
2189 | { | |
2190 | struct net_device *dev = (struct net_device *) dev_id; | |
2191 | struct hp100_private *lp = netdev_priv(dev); | |
2192 | ||
2193 | int ioaddr; | |
2194 | u_int val; | |
2195 | ||
2196 | if (dev == NULL) | |
2197 | return IRQ_NONE; | |
2198 | ioaddr = dev->base_addr; | |
2199 | ||
2200 | spin_lock(&lp->lock); | |
2201 | ||
2202 | hp100_ints_off(); | |
2203 | ||
2204 | #ifdef HP100_DEBUG_B | |
2205 | hp100_outw(0x4219, TRACE); | |
2206 | #endif | |
2207 | ||
2208 | /* hp100_page( PERFORMANCE ); */ | |
2209 | val = hp100_inw(IRQ_STATUS); | |
2210 | #ifdef HP100_DEBUG_IRQ | |
2211 | printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", | |
2212 | dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), | |
2213 | hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); | |
2214 | #endif | |
2215 | ||
2216 | if (val == 0) { /* might be a shared interrupt */ | |
2217 | spin_unlock(&lp->lock); | |
2218 | hp100_ints_on(); | |
2219 | return IRQ_NONE; | |
2220 | } | |
2221 | /* We're only interested in those interrupts we really enabled. */ | |
2222 | /* val &= hp100_inw( IRQ_MASK ); */ | |
2223 | ||
2224 | /* | |
2225 | * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL | |
2226 | * is considered executed whenever the RX_PDL data structure is no longer | |
2227 | * needed. | |
2228 | */ | |
2229 | if (val & HP100_RX_PDL_FILL_COMPL) { | |
2230 | if (lp->mode == 1) | |
2231 | hp100_rx_bm(dev); | |
2232 | else { | |
2233 | printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | /* | |
2238 | * The RX_PACKET interrupt is set, when the receive packet counter is | |
2239 | * non zero. We use this interrupt for receiving in slave mode. In | |
2240 | * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill | |
2241 | * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then | |
2242 | * we somehow have missed a rx_pdl_fill_compl interrupt. | |
2243 | */ | |
2244 | ||
2245 | if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ | |
2246 | if (lp->mode != 1) /* non busmaster */ | |
2247 | hp100_rx(dev); | |
2248 | else if (!(val & HP100_RX_PDL_FILL_COMPL)) { | |
2249 | /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */ | |
2250 | hp100_rx_bm(dev); | |
2251 | } | |
2252 | } | |
2253 | ||
2254 | /* | |
2255 | * Ack. that we have noticed the interrupt and thereby allow next one. | |
2256 | * Note that this is now done after the slave rx function, since first | |
2257 | * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt | |
2258 | * on the J2573. | |
2259 | */ | |
2260 | hp100_outw(val, IRQ_STATUS); | |
2261 | ||
2262 | /* | |
2263 | * RX_ERROR is set when a packet is dropped due to no memory resources on | |
2264 | * the card or when a RCV_ERR occurs. | |
2265 | * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists | |
2266 | * only in the 802.3 MAC and happens when 16 collisions occur during a TX | |
2267 | */ | |
2268 | if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { | |
2269 | #ifdef HP100_DEBUG_IRQ | |
2270 | printk("hp100: %s: TX/RX Error IRQ\n", dev->name); | |
2271 | #endif | |
2272 | hp100_update_stats(dev); | |
2273 | if (lp->mode == 1) { | |
2274 | hp100_rxfill(dev); | |
2275 | hp100_clean_txring(dev); | |
2276 | } | |
2277 | } | |
2278 | ||
2279 | /* | |
2280 | * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. | |
2281 | */ | |
2282 | if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) | |
2283 | hp100_rxfill(dev); | |
2284 | ||
2285 | /* | |
2286 | * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire | |
2287 | * is completed | |
2288 | */ | |
2289 | if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) | |
2290 | hp100_clean_txring(dev); | |
2291 | ||
2292 | /* | |
2293 | * MISC_ERROR is set when either the LAN link goes down or a detected | |
2294 | * bus error occurs. | |
2295 | */ | |
2296 | if (val & HP100_MISC_ERROR) { /* New for J2585B */ | |
2297 | #ifdef HP100_DEBUG_IRQ | |
2298 | printk | |
2299 | ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", | |
2300 | dev->name); | |
2301 | #endif | |
2302 | if (lp->mode == 1) { | |
2303 | hp100_clean_txring(dev); | |
2304 | hp100_rxfill(dev); | |
2305 | } | |
2306 | hp100_misc_interrupt(dev); | |
2307 | } | |
2308 | ||
2309 | spin_unlock(&lp->lock); | |
2310 | hp100_ints_on(); | |
2311 | return IRQ_HANDLED; | |
2312 | } | |
2313 | ||
2314 | /* | |
2315 | * some misc functions | |
2316 | */ | |
2317 | ||
2318 | static void hp100_start_interface(struct net_device *dev) | |
2319 | { | |
2320 | unsigned long flags; | |
2321 | int ioaddr = dev->base_addr; | |
2322 | struct hp100_private *lp = netdev_priv(dev); | |
2323 | ||
2324 | #ifdef HP100_DEBUG_B | |
2325 | hp100_outw(0x4220, TRACE); | |
2326 | printk("hp100: %s: hp100_start_interface\n", dev->name); | |
2327 | #endif | |
2328 | ||
2329 | spin_lock_irqsave(&lp->lock, flags); | |
2330 | ||
2331 | /* Ensure the adapter does not want to request an interrupt when */ | |
2332 | /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ | |
2333 | hp100_page(PERFORMANCE); | |
2334 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
2335 | hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ | |
2336 | hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, | |
2337 | OPTION_LSW); | |
2338 | /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ | |
2339 | hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); | |
2340 | ||
2341 | if (lp->mode == 1) { | |
2342 | /* Make sure BM bit is set... */ | |
2343 | hp100_page(HW_MAP); | |
2344 | hp100_orb(HP100_BM_MASTER, BM); | |
2345 | hp100_rxfill(dev); | |
2346 | } else if (lp->mode == 2) { | |
2347 | /* Enable memory mapping. Note: Don't do this when busmaster. */ | |
2348 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); | |
2349 | } | |
2350 | ||
2351 | hp100_page(PERFORMANCE); | |
2352 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
2353 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
2354 | ||
2355 | /* enable a few interrupts: */ | |
2356 | if (lp->mode == 1) { /* busmaster mode */ | |
2357 | hp100_outw(HP100_RX_PDL_FILL_COMPL | | |
2358 | HP100_RX_PDA_ZERO | HP100_RX_ERROR | | |
2359 | /* HP100_RX_PACKET | */ | |
2360 | /* HP100_RX_EARLY_INT | */ HP100_SET_HB | | |
2361 | /* HP100_TX_PDA_ZERO | */ | |
2362 | HP100_TX_COMPLETE | | |
2363 | /* HP100_MISC_ERROR | */ | |
2364 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); | |
2365 | } else { | |
2366 | hp100_outw(HP100_RX_PACKET | | |
2367 | HP100_RX_ERROR | HP100_SET_HB | | |
2368 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); | |
2369 | } | |
2370 | ||
2371 | /* Note : before hp100_set_multicast_list(), because it will play with | |
2372 | * spinlock itself... Jean II */ | |
2373 | spin_unlock_irqrestore(&lp->lock, flags); | |
2374 | ||
2375 | /* Enable MAC Tx and RX, set MAC modes, ... */ | |
2376 | hp100_set_multicast_list(dev); | |
2377 | } | |
2378 | ||
2379 | static void hp100_stop_interface(struct net_device *dev) | |
2380 | { | |
2381 | struct hp100_private *lp = netdev_priv(dev); | |
2382 | int ioaddr = dev->base_addr; | |
2383 | u_int val; | |
2384 | ||
2385 | #ifdef HP100_DEBUG_B | |
2386 | printk("hp100: %s: hp100_stop_interface\n", dev->name); | |
2387 | hp100_outw(0x4221, TRACE); | |
2388 | #endif | |
2389 | ||
2390 | if (lp->mode == 1) | |
2391 | hp100_BM_shutdown(dev); | |
2392 | else { | |
2393 | /* Note: MMAP_DIS will be reenabled by start_interface */ | |
2394 | hp100_outw(HP100_INT_EN | HP100_RESET_LB | | |
2395 | HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, | |
2396 | OPTION_LSW); | |
2397 | val = hp100_inw(OPTION_LSW); | |
2398 | ||
2399 | hp100_page(MAC_CTRL); | |
2400 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); | |
2401 | ||
2402 | if (!(val & HP100_HW_RST)) | |
2403 | return; /* If reset, imm. return ... */ | |
2404 | /* ... else: busy wait until idle */ | |
2405 | for (val = 0; val < 6000; val++) | |
2406 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { | |
2407 | hp100_page(PERFORMANCE); | |
2408 | return; | |
2409 | } | |
2410 | printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); | |
2411 | hp100_page(PERFORMANCE); | |
2412 | } | |
2413 | } | |
2414 | ||
2415 | static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) | |
2416 | { | |
2417 | int i; | |
2418 | int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; | |
2419 | ||
2420 | #ifdef HP100_DEBUG_B | |
2421 | hp100_outw(0x4222, TRACE); | |
2422 | #endif | |
2423 | ||
2424 | hp100_page(EEPROM_CTRL); | |
2425 | hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); | |
2426 | hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); | |
2427 | for (i = 0; i < 10000; i++) | |
2428 | if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) | |
2429 | return; | |
2430 | printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); | |
2431 | } | |
2432 | ||
2433 | /* Sense connection status. | |
2434 | * return values: LAN_10 - Connected to 10Mbit/s network | |
2435 | * LAN_100 - Connected to 100Mbit/s network | |
2436 | * LAN_ERR - not connected or 100Mbit/s Hub down | |
2437 | */ | |
2438 | static int hp100_sense_lan(struct net_device *dev) | |
2439 | { | |
2440 | int ioaddr = dev->base_addr; | |
2441 | u_short val_VG, val_10; | |
2442 | struct hp100_private *lp = netdev_priv(dev); | |
2443 | ||
2444 | #ifdef HP100_DEBUG_B | |
2445 | hp100_outw(0x4223, TRACE); | |
2446 | #endif | |
2447 | ||
2448 | hp100_page(MAC_CTRL); | |
2449 | val_10 = hp100_inb(10_LAN_CFG_1); | |
2450 | val_VG = hp100_inb(VG_LAN_CFG_1); | |
2451 | hp100_page(PERFORMANCE); | |
2452 | #ifdef HP100_DEBUG | |
2453 | printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", | |
2454 | dev->name, val_VG, val_10); | |
2455 | #endif | |
2456 | ||
2457 | if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ | |
2458 | return HP100_LAN_10; | |
2459 | ||
2460 | if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ | |
2461 | /* | |
2462 | * This can be overriden by dos utility, so if this has no effect, | |
2463 | * perhaps you need to download that utility from HP and set card | |
2464 | * back to "auto detect". | |
2465 | */ | |
2466 | val_10 |= HP100_AUI_SEL | HP100_LOW_TH; | |
2467 | hp100_page(MAC_CTRL); | |
2468 | hp100_outb(val_10, 10_LAN_CFG_1); | |
2469 | hp100_page(PERFORMANCE); | |
2470 | return HP100_LAN_COAX; | |
2471 | } | |
2472 | ||
2473 | /* Those cards don't have a 100 Mbit connector */ | |
2474 | if ( !strcmp(lp->id, "HWP1920") || | |
2475 | (lp->pci_dev && | |
2476 | lp->pci_dev->vendor == PCI_VENDOR_ID && | |
2477 | (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || | |
2478 | lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) | |
2479 | return HP100_LAN_ERR; | |
2480 | ||
2481 | if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ | |
2482 | return HP100_LAN_100; | |
2483 | return HP100_LAN_ERR; | |
2484 | } | |
2485 | ||
2486 | static int hp100_down_vg_link(struct net_device *dev) | |
2487 | { | |
2488 | struct hp100_private *lp = netdev_priv(dev); | |
2489 | int ioaddr = dev->base_addr; | |
2490 | unsigned long time; | |
2491 | long savelan, newlan; | |
2492 | ||
2493 | #ifdef HP100_DEBUG_B | |
2494 | hp100_outw(0x4224, TRACE); | |
2495 | printk("hp100: %s: down_vg_link\n", dev->name); | |
2496 | #endif | |
2497 | ||
2498 | hp100_page(MAC_CTRL); | |
2499 | time = jiffies + (HZ / 4); | |
2500 | do { | |
2501 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) | |
2502 | break; | |
3173c890 NA |
2503 | if (!in_interrupt()) |
2504 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2505 | } while (time_after(time, jiffies)); |
2506 | ||
2507 | if (time_after_eq(jiffies, time)) /* no signal->no logout */ | |
2508 | return 0; | |
2509 | ||
2510 | /* Drop the VG Link by clearing the link up cmd and load addr. */ | |
2511 | ||
2512 | hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); | |
2513 | hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); | |
2514 | ||
2515 | /* Conditionally stall for >250ms on Link-Up Status (to go down) */ | |
2516 | time = jiffies + (HZ / 2); | |
2517 | do { | |
2518 | if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) | |
2519 | break; | |
3173c890 NA |
2520 | if (!in_interrupt()) |
2521 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2522 | } while (time_after(time, jiffies)); |
2523 | ||
2524 | #ifdef HP100_DEBUG | |
2525 | if (time_after_eq(jiffies, time)) | |
2526 | printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); | |
2527 | #endif | |
2528 | ||
2529 | /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ | |
2530 | /* logout under traffic (even though all the status bits are cleared), */ | |
2531 | /* do this workaround to get the Rev 1 MAC in its idle state */ | |
2532 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2533 | /* Reset VG MAC to insure it leaves the logoff state even if */ | |
2534 | /* the Hub is still emitting tones */ | |
2535 | hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); | |
2536 | udelay(1500); /* wait for >1ms */ | |
2537 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ | |
2538 | udelay(1500); | |
2539 | } | |
2540 | ||
2541 | /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ | |
2542 | /* to get the VG mac to full reset. This is not req.d with later chips */ | |
2543 | /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ | |
2544 | /* selected again! This will be left to the connect hub function to */ | |
2545 | /* perform if desired. */ | |
2546 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2547 | /* Have to write to 10 and 100VG control registers simultaneously */ | |
2548 | savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ | |
2549 | newlan &= ~(HP100_VG_SEL << 16); | |
2550 | newlan |= (HP100_DOT3_MAC) << 8; | |
2551 | hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ | |
2552 | hp100_outl(newlan, 10_LAN_CFG_1); | |
2553 | ||
2554 | /* Conditionally stall for 5sec on VG selected. */ | |
2555 | time = jiffies + (HZ * 5); | |
2556 | do { | |
2557 | if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) | |
2558 | break; | |
3173c890 NA |
2559 | if (!in_interrupt()) |
2560 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2561 | } while (time_after(time, jiffies)); |
2562 | ||
2563 | hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ | |
2564 | hp100_outl(savelan, 10_LAN_CFG_1); | |
2565 | } | |
2566 | ||
2567 | time = jiffies + (3 * HZ); /* Timeout 3s */ | |
2568 | do { | |
2569 | if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) | |
2570 | break; | |
3173c890 NA |
2571 | if (!in_interrupt()) |
2572 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2573 | } while (time_after(time, jiffies)); |
2574 | ||
2575 | if (time_before_eq(time, jiffies)) { | |
2576 | #ifdef HP100_DEBUG | |
2577 | printk("hp100: %s: down_vg_link: timeout\n", dev->name); | |
2578 | #endif | |
2579 | return -EIO; | |
2580 | } | |
2581 | ||
2582 | time = jiffies + (2 * HZ); /* This seems to take a while.... */ | |
2583 | do { | |
3173c890 NA |
2584 | if (!in_interrupt()) |
2585 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2586 | } while (time_after(time, jiffies)); |
2587 | ||
2588 | return 0; | |
2589 | } | |
2590 | ||
2591 | static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) | |
2592 | { | |
2593 | int ioaddr = dev->base_addr; | |
2594 | struct hp100_private *lp = netdev_priv(dev); | |
2595 | u_short val = 0; | |
2596 | unsigned long time; | |
2597 | int startst; | |
2598 | ||
2599 | #ifdef HP100_DEBUG_B | |
2600 | hp100_outw(0x4225, TRACE); | |
2601 | printk("hp100: %s: login_to_vg_hub\n", dev->name); | |
2602 | #endif | |
2603 | ||
2604 | /* Initiate a login sequence iff VG MAC is enabled and either Load Address | |
2605 | * bit is zero or the force relogin flag is set (e.g. due to MAC address or | |
2606 | * promiscuous mode change) | |
2607 | */ | |
2608 | hp100_page(MAC_CTRL); | |
2609 | startst = hp100_inb(VG_LAN_CFG_1); | |
2610 | if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { | |
2611 | #ifdef HP100_DEBUG_TRAINING | |
2612 | printk("hp100: %s: Start training\n", dev->name); | |
2613 | #endif | |
2614 | ||
2615 | /* Ensure VG Reset bit is 1 (i.e., do not reset) */ | |
2616 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); | |
2617 | ||
2618 | /* If Lassen AND auto-select-mode AND VG tones were sensed on */ | |
2619 | /* entry then temporarily put them into force 100Mbit mode */ | |
2620 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) | |
2621 | hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); | |
2622 | ||
2623 | /* Drop the VG link by zeroing Link Up Command and Load Address */ | |
2624 | hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); | |
2625 | ||
2626 | #ifdef HP100_DEBUG_TRAINING | |
2627 | printk("hp100: %s: Bring down the link\n", dev->name); | |
2628 | #endif | |
2629 | ||
2630 | /* Wait for link to drop */ | |
2631 | time = jiffies + (HZ / 10); | |
2632 | do { | |
2633 | if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) | |
2634 | break; | |
3173c890 NA |
2635 | if (!in_interrupt()) |
2636 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2637 | } while (time_after(time, jiffies)); |
2638 | ||
2639 | /* Start an addressed training and optionally request promiscuous port */ | |
2640 | if ((dev->flags) & IFF_PROMISC) { | |
2641 | hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); | |
2642 | if (lp->chip == HP100_CHIPID_LASSEN) | |
2643 | hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); | |
2644 | } else { | |
2645 | hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); | |
2646 | /* For ETR parts we need to reset the prom. bit in the training | |
2647 | * register, otherwise promiscious mode won't be disabled. | |
2648 | */ | |
2649 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2650 | hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); | |
2651 | } | |
2652 | } | |
2653 | ||
2654 | /* With ETR parts, frame format request bits can be set. */ | |
2655 | if (lp->chip == HP100_CHIPID_LASSEN) | |
2656 | hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); | |
2657 | ||
2658 | hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); | |
2659 | ||
2660 | /* Note: Next wait could be omitted for Hood and earlier chips under */ | |
2661 | /* certain circumstances */ | |
2662 | /* TODO: check if hood/earlier and skip wait. */ | |
2663 | ||
2664 | /* Wait for either short timeout for VG tones or long for login */ | |
2665 | /* Wait for the card hardware to signalise link cable status ok... */ | |
2666 | hp100_page(MAC_CTRL); | |
2667 | time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ | |
2668 | do { | |
2669 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) | |
2670 | break; | |
3173c890 NA |
2671 | if (!in_interrupt()) |
2672 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2673 | } while (time_before(jiffies, time)); |
2674 | ||
2675 | if (time_after_eq(jiffies, time)) { | |
2676 | #ifdef HP100_DEBUG_TRAINING | |
2677 | printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); | |
2678 | #endif | |
2679 | } else { | |
2680 | #ifdef HP100_DEBUG_TRAINING | |
2681 | printk | |
2682 | ("hp100: %s: HUB tones detected. Trying to train.\n", | |
2683 | dev->name); | |
2684 | #endif | |
2685 | ||
2686 | time = jiffies + (2 * HZ); /* again a timeout */ | |
2687 | do { | |
2688 | val = hp100_inb(VG_LAN_CFG_1); | |
2689 | if ((val & (HP100_LINK_UP_ST))) { | |
2690 | #ifdef HP100_DEBUG_TRAINING | |
2691 | printk("hp100: %s: Passed training.\n", dev->name); | |
2692 | #endif | |
2693 | break; | |
2694 | } | |
3173c890 NA |
2695 | if (!in_interrupt()) |
2696 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2697 | } while (time_after(time, jiffies)); |
2698 | } | |
2699 | ||
2700 | /* If LINK_UP_ST is set, then we are logged into the hub. */ | |
2701 | if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { | |
2702 | #ifdef HP100_DEBUG_TRAINING | |
2703 | printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); | |
2704 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2705 | val = hp100_inw(TRAIN_ALLOW); | |
2706 | printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", | |
2707 | dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); | |
2708 | printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); | |
2709 | printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); | |
2710 | } | |
2711 | #endif | |
2712 | } else { | |
2713 | /* If LINK_UP_ST is not set, login was not successful */ | |
2714 | printk("hp100: %s: Problem logging into the HUB.\n", dev->name); | |
2715 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2716 | /* Check allowed Register to find out why there is a problem. */ | |
2717 | val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ | |
2718 | #ifdef HP100_DEBUG_TRAINING | |
2719 | printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); | |
2720 | #endif | |
2721 | if (val & HP100_MALLOW_ACCDENIED) | |
2722 | printk("hp100: %s: HUB access denied.\n", dev->name); | |
2723 | if (val & HP100_MALLOW_CONFIGURE) | |
2724 | printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); | |
2725 | if (val & HP100_MALLOW_DUPADDR) | |
2726 | printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); | |
2727 | } | |
2728 | } | |
2729 | ||
2730 | /* If we have put the chip into forced 100 Mbit mode earlier, go back */ | |
2731 | /* to auto-select mode */ | |
2732 | ||
2733 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { | |
2734 | hp100_page(MAC_CTRL); | |
2735 | hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); | |
2736 | } | |
2737 | ||
2738 | val = hp100_inb(VG_LAN_CFG_1); | |
2739 | ||
2740 | /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ | |
2741 | hp100_page(PERFORMANCE); | |
2742 | hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); | |
2743 | ||
2744 | if (val & HP100_LINK_UP_ST) | |
2745 | return (0); /* login was ok */ | |
2746 | else { | |
2747 | printk("hp100: %s: Training failed.\n", dev->name); | |
2748 | hp100_down_vg_link(dev); | |
2749 | return -EIO; | |
2750 | } | |
2751 | } | |
2752 | /* no forced relogin & already link there->no training. */ | |
2753 | return -EIO; | |
2754 | } | |
2755 | ||
2756 | static void hp100_cascade_reset(struct net_device *dev, u_short enable) | |
2757 | { | |
2758 | int ioaddr = dev->base_addr; | |
2759 | struct hp100_private *lp = netdev_priv(dev); | |
2760 | ||
2761 | #ifdef HP100_DEBUG_B | |
2762 | hp100_outw(0x4226, TRACE); | |
2763 | printk("hp100: %s: cascade_reset\n", dev->name); | |
2764 | #endif | |
2765 | ||
2766 | if (enable) { | |
2767 | hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); | |
2768 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2769 | /* Lassen requires a PCI transmit fifo reset */ | |
2770 | hp100_page(HW_MAP); | |
2771 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); | |
2772 | hp100_orb(HP100_PCI_RESET, PCICTRL2); | |
2773 | /* Wait for min. 300 ns */ | |
2774 | /* we can't use jiffies here, because it may be */ | |
2775 | /* that we have disabled the timer... */ | |
2776 | udelay(400); | |
2777 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); | |
2778 | hp100_page(PERFORMANCE); | |
2779 | } | |
2780 | } else { /* bring out of reset */ | |
2781 | hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); | |
2782 | udelay(400); | |
2783 | hp100_page(PERFORMANCE); | |
2784 | } | |
2785 | } | |
2786 | ||
2787 | #ifdef HP100_DEBUG | |
2788 | void hp100_RegisterDump(struct net_device *dev) | |
2789 | { | |
2790 | int ioaddr = dev->base_addr; | |
2791 | int Page; | |
2792 | int Register; | |
2793 | ||
2794 | /* Dump common registers */ | |
2795 | printk("hp100: %s: Cascade Register Dump\n", dev->name); | |
2796 | printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); | |
2797 | printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); | |
2798 | printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); | |
2799 | printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); | |
2800 | ||
2801 | /* Dump paged registers */ | |
2802 | for (Page = 0; Page < 8; Page++) { | |
2803 | /* Dump registers */ | |
2804 | printk("page: 0x%.2x\n", Page); | |
2805 | outw(Page, ioaddr + 0x02); | |
2806 | for (Register = 0x8; Register < 0x22; Register += 2) { | |
2807 | /* Display Register contents except data port */ | |
2808 | if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { | |
2809 | printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); | |
2810 | } | |
2811 | } | |
2812 | } | |
2813 | hp100_page(PERFORMANCE); | |
2814 | } | |
2815 | #endif | |
2816 | ||
2817 | ||
2818 | static void cleanup_dev(struct net_device *d) | |
2819 | { | |
2820 | struct hp100_private *p = netdev_priv(d); | |
2821 | ||
2822 | unregister_netdev(d); | |
2823 | release_region(d->base_addr, HP100_REGION_SIZE); | |
2824 | ||
2825 | if (p->mode == 1) /* busmaster */ | |
2826 | pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, | |
2827 | p->page_vaddr_algn, | |
2828 | virt_to_whatever(d, p->page_vaddr_algn)); | |
2829 | if (p->mem_ptr_virt) | |
2830 | iounmap(p->mem_ptr_virt); | |
2831 | ||
2832 | free_netdev(d); | |
2833 | } | |
2834 | ||
2835 | #ifdef CONFIG_EISA | |
2836 | static int __init hp100_eisa_probe (struct device *gendev) | |
2837 | { | |
2838 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2839 | struct eisa_device *edev = to_eisa_device(gendev); | |
2840 | int err; | |
2841 | ||
2842 | if (!dev) | |
2843 | return -ENOMEM; | |
2844 | ||
2845 | SET_MODULE_OWNER(dev); | |
2846 | SET_NETDEV_DEV(dev, &edev->dev); | |
2847 | ||
2848 | err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); | |
2849 | if (err) | |
2850 | goto out1; | |
2851 | ||
1da177e4 LT |
2852 | #ifdef HP100_DEBUG |
2853 | printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, | |
2854 | dev->base_addr); | |
2855 | #endif | |
2856 | gendev->driver_data = dev; | |
2857 | return 0; | |
1da177e4 LT |
2858 | out1: |
2859 | free_netdev(dev); | |
2860 | return err; | |
2861 | } | |
2862 | ||
2863 | static int __devexit hp100_eisa_remove (struct device *gendev) | |
2864 | { | |
2865 | struct net_device *dev = gendev->driver_data; | |
2866 | cleanup_dev(dev); | |
2867 | return 0; | |
2868 | } | |
2869 | ||
2870 | static struct eisa_driver hp100_eisa_driver = { | |
2871 | .id_table = hp100_eisa_tbl, | |
2872 | .driver = { | |
2873 | .name = "hp100", | |
2874 | .probe = hp100_eisa_probe, | |
2875 | .remove = __devexit_p (hp100_eisa_remove), | |
2876 | } | |
2877 | }; | |
2878 | #endif | |
2879 | ||
2880 | #ifdef CONFIG_PCI | |
2881 | static int __devinit hp100_pci_probe (struct pci_dev *pdev, | |
2882 | const struct pci_device_id *ent) | |
2883 | { | |
2884 | struct net_device *dev; | |
2885 | int ioaddr; | |
2886 | u_short pci_command; | |
2887 | int err; | |
2888 | ||
2889 | if (pci_enable_device(pdev)) | |
2890 | return -ENODEV; | |
2891 | ||
2892 | dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2893 | if (!dev) { | |
2894 | err = -ENOMEM; | |
2895 | goto out0; | |
2896 | } | |
2897 | ||
2898 | SET_MODULE_OWNER(dev); | |
2899 | SET_NETDEV_DEV(dev, &pdev->dev); | |
2900 | ||
2901 | pci_read_config_word(pdev, PCI_COMMAND, &pci_command); | |
2902 | if (!(pci_command & PCI_COMMAND_IO)) { | |
2903 | #ifdef HP100_DEBUG | |
2904 | printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); | |
2905 | #endif | |
2906 | pci_command |= PCI_COMMAND_IO; | |
2907 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); | |
2908 | } | |
2909 | ||
2910 | if (!(pci_command & PCI_COMMAND_MASTER)) { | |
2911 | #ifdef HP100_DEBUG | |
2912 | printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); | |
2913 | #endif | |
2914 | pci_command |= PCI_COMMAND_MASTER; | |
2915 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); | |
2916 | } | |
2917 | ||
2918 | ioaddr = pci_resource_start(pdev, 0); | |
2919 | err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); | |
2920 | if (err) | |
2921 | goto out1; | |
1da177e4 LT |
2922 | |
2923 | #ifdef HP100_DEBUG | |
2924 | printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); | |
2925 | #endif | |
2926 | pci_set_drvdata(pdev, dev); | |
2927 | return 0; | |
1da177e4 LT |
2928 | out1: |
2929 | free_netdev(dev); | |
2930 | out0: | |
2931 | pci_disable_device(pdev); | |
2932 | return err; | |
2933 | } | |
2934 | ||
2935 | static void __devexit hp100_pci_remove (struct pci_dev *pdev) | |
2936 | { | |
2937 | struct net_device *dev = pci_get_drvdata(pdev); | |
2938 | ||
2939 | cleanup_dev(dev); | |
2940 | pci_disable_device(pdev); | |
2941 | } | |
2942 | ||
2943 | ||
2944 | static struct pci_driver hp100_pci_driver = { | |
2945 | .name = "hp100", | |
2946 | .id_table = hp100_pci_tbl, | |
2947 | .probe = hp100_pci_probe, | |
2948 | .remove = __devexit_p(hp100_pci_remove), | |
2949 | }; | |
2950 | #endif | |
2951 | ||
2952 | /* | |
2953 | * module section | |
2954 | */ | |
2955 | ||
2956 | MODULE_LICENSE("GPL"); | |
2957 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, " | |
2958 | "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); | |
2959 | MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); | |
2960 | ||
2961 | /* | |
2962 | * Note: to register three isa devices, use: | |
2963 | * option hp100 hp100_port=0,0,0 | |
2964 | * to register one card at io 0x280 as eth239, use: | |
2965 | * option hp100 hp100_port=0x280 | |
2966 | */ | |
2967 | #if defined(MODULE) && defined(CONFIG_ISA) | |
2968 | #define HP100_DEVICES 5 | |
2969 | /* Parameters set by insmod */ | |
2970 | static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; | |
2971 | module_param_array(hp100_port, int, NULL, 0); | |
2972 | ||
2973 | /* List of devices */ | |
2974 | static struct net_device *hp100_devlist[HP100_DEVICES]; | |
2975 | ||
2976 | static int __init hp100_isa_init(void) | |
2977 | { | |
2978 | struct net_device *dev; | |
2979 | int i, err, cards = 0; | |
2980 | ||
2981 | /* Don't autoprobe ISA bus */ | |
2982 | if (hp100_port[0] == 0) | |
2983 | return -ENODEV; | |
2984 | ||
2985 | /* Loop on all possible base addresses */ | |
2986 | for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { | |
2987 | dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2988 | if (!dev) { | |
2989 | printk(KERN_WARNING "hp100: no memory for network device\n"); | |
2990 | while (cards > 0) | |
2991 | cleanup_dev(hp100_devlist[--cards]); | |
2992 | ||
2993 | return -ENOMEM; | |
2994 | } | |
2995 | SET_MODULE_OWNER(dev); | |
2996 | ||
2997 | err = hp100_isa_probe(dev, hp100_port[i]); | |
b1fc5505 | 2998 | if (!err) |
2999 | hp100_devlist[cards++] = dev; | |
3000 | else | |
1da177e4 LT |
3001 | free_netdev(dev); |
3002 | } | |
3003 | ||
3004 | return cards > 0 ? 0 : -ENODEV; | |
3005 | } | |
3006 | ||
3007 | static void __exit hp100_isa_cleanup(void) | |
3008 | { | |
3009 | int i; | |
3010 | ||
3011 | for (i = 0; i < HP100_DEVICES; i++) { | |
3012 | struct net_device *dev = hp100_devlist[i]; | |
3013 | if (dev) | |
3014 | cleanup_dev(dev); | |
3015 | } | |
3016 | } | |
3017 | #else | |
3018 | #define hp100_isa_init() (0) | |
3019 | #define hp100_isa_cleanup() do { } while(0) | |
3020 | #endif | |
3021 | ||
3022 | static int __init hp100_module_init(void) | |
3023 | { | |
3024 | int err; | |
3025 | ||
3026 | err = hp100_isa_init(); | |
3027 | if (err && err != -ENODEV) | |
3028 | goto out; | |
3029 | #ifdef CONFIG_EISA | |
3030 | err = eisa_driver_register(&hp100_eisa_driver); | |
3031 | if (err && err != -ENODEV) | |
3032 | goto out2; | |
3033 | #endif | |
3034 | #ifdef CONFIG_PCI | |
3035 | err = pci_module_init(&hp100_pci_driver); | |
3036 | if (err && err != -ENODEV) | |
3037 | goto out3; | |
3038 | #endif | |
3039 | out: | |
3040 | return err; | |
3041 | out3: | |
3042 | #ifdef CONFIG_EISA | |
3043 | eisa_driver_unregister (&hp100_eisa_driver); | |
3044 | out2: | |
3045 | #endif | |
3046 | hp100_isa_cleanup(); | |
3047 | goto out; | |
3048 | } | |
3049 | ||
3050 | ||
3051 | static void __exit hp100_module_exit(void) | |
3052 | { | |
3053 | hp100_isa_cleanup(); | |
3054 | #ifdef CONFIG_EISA | |
3055 | eisa_driver_unregister (&hp100_eisa_driver); | |
3056 | #endif | |
3057 | #ifdef CONFIG_PCI | |
3058 | pci_unregister_driver (&hp100_pci_driver); | |
3059 | #endif | |
3060 | } | |
3061 | ||
3062 | module_init(hp100_module_init) | |
3063 | module_exit(hp100_module_exit) | |
3064 | ||
3065 | ||
3066 | /* | |
3067 | * Local variables: | |
3068 | * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c hp100.c" | |
3069 | * c-indent-level: 2 | |
3070 | * tab-width: 8 | |
3071 | * End: | |
3072 | */ |