Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
6aa20a22 | 2 | ** hp100.c |
1da177e4 LT |
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> | |
6aa20a22 | 8 | ** Extended for new busmaster capable chipsets by |
1da177e4 LT |
9 | ** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de> |
10 | ** | |
c1017a4c | 11 | ** Maintained by: Jaroslav Kysela <perex@perex.cz> |
6aa20a22 | 12 | ** |
1da177e4 LT |
13 | ** This driver has only been tested with |
14 | ** -- HP J2585B 10/100 Mbit/s PCI Busmaster | |
6aa20a22 | 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 | |
6aa20a22 | 21 | ** |
1da177e4 LT |
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 | |
6aa20a22 | 68 | ** |
1da177e4 LT |
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) | |
6aa20a22 | 76 | ** - little changes in hp100_sense_lan routine |
1da177e4 LT |
77 | ** - added support for Coax and AUI (J2970) |
78 | ** - fix for multiple cards and hp100_mode parameter (insmod) | |
6aa20a22 | 79 | ** - fix for shared IRQ |
1da177e4 LT |
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> | |
1da177e4 LT |
114 | #include <linux/delay.h> |
115 | #include <linux/init.h> | |
116 | #include <linux/bitops.h> | |
ff5688ae | 117 | #include <linux/jiffies.h> |
1da177e4 LT |
118 | |
119 | #include <asm/io.h> | |
120 | ||
121 | #include "hp100.h" | |
122 | ||
123 | /* | |
124 | * defines | |
125 | */ | |
126 | ||
127 | #define HP100_BUS_ISA 0 | |
128 | #define HP100_BUS_EISA 1 | |
129 | #define HP100_BUS_PCI 2 | |
130 | ||
131 | #define HP100_REGION_SIZE 0x20 /* for ioports */ | |
132 | #define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */ | |
133 | ||
134 | #define HP100_MAX_PACKET_SIZE (1536+4) | |
135 | #define HP100_MIN_PACKET_SIZE 60 | |
136 | ||
137 | #ifndef HP100_DEFAULT_RX_RATIO | |
138 | /* default - 75% onboard memory on the card are used for RX packets */ | |
139 | #define HP100_DEFAULT_RX_RATIO 75 | |
140 | #endif | |
141 | ||
142 | #ifndef HP100_DEFAULT_PRIORITY_TX | |
143 | /* default - don't enable transmit outgoing packets as priority */ | |
144 | #define HP100_DEFAULT_PRIORITY_TX 0 | |
145 | #endif | |
146 | ||
147 | /* | |
148 | * structures | |
149 | */ | |
150 | ||
151 | struct hp100_private { | |
152 | spinlock_t lock; | |
153 | char id[HP100_SIG_LEN]; | |
154 | u_short chip; | |
155 | u_short soft_model; | |
156 | u_int memory_size; | |
157 | u_int virt_memory_size; | |
158 | u_short rx_ratio; /* 1 - 99 */ | |
159 | u_short priority_tx; /* != 0 - priority tx */ | |
160 | u_short mode; /* PIO, Shared Mem or Busmaster */ | |
161 | u_char bus; | |
162 | struct pci_dev *pci_dev; | |
163 | short mem_mapped; /* memory mapped access */ | |
164 | void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */ | |
165 | unsigned long mem_ptr_phys; /* physical memory mapped area */ | |
166 | short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */ | |
167 | int hub_status; /* was login to hub successful? */ | |
168 | u_char mac1_mode; | |
169 | u_char mac2_mode; | |
170 | u_char hash_bytes[8]; | |
171 | struct net_device_stats stats; | |
172 | ||
173 | /* Rings for busmaster mode: */ | |
174 | hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */ | |
175 | hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */ | |
176 | hp100_ring_t *txrhead; /* Head (oldest) index into txring */ | |
177 | hp100_ring_t *txrtail; /* Tail (newest) index into txring */ | |
178 | ||
179 | hp100_ring_t rxring[MAX_RX_PDL]; | |
180 | hp100_ring_t txring[MAX_TX_PDL]; | |
181 | ||
182 | u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */ | |
183 | u_long whatever_offset; /* Offset to bus/phys/dma address */ | |
184 | int rxrcommit; /* # Rx PDLs commited to adapter */ | |
185 | int txrcommit; /* # Tx PDLs commited to adapter */ | |
186 | }; | |
187 | ||
188 | /* | |
189 | * variables | |
190 | */ | |
7525d4bf | 191 | #ifdef CONFIG_ISA |
1da177e4 LT |
192 | static const char *hp100_isa_tbl[] = { |
193 | "HWPF150", /* HP J2573 rev A */ | |
194 | "HWP1950", /* HP J2573 */ | |
195 | }; | |
2c81fbc4 | 196 | #endif |
1da177e4 LT |
197 | |
198 | #ifdef CONFIG_EISA | |
199 | static struct eisa_device_id hp100_eisa_tbl[] = { | |
200 | { "HWPF180" }, /* HP J2577 rev A */ | |
201 | { "HWP1920" }, /* HP 27248B */ | |
202 | { "HWP1940" }, /* HP J2577 */ | |
203 | { "HWP1990" }, /* HP J2577 */ | |
204 | { "CPX0301" }, /* ReadyLink ENET100-VG4 */ | |
205 | { "CPX0401" }, /* FreedomLine 100/VG */ | |
206 | { "" } /* Mandatory final entry ! */ | |
207 | }; | |
208 | MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl); | |
209 | #endif | |
210 | ||
211 | #ifdef CONFIG_PCI | |
212 | static struct pci_device_id hp100_pci_tbl[] = { | |
213 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,}, | |
214 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,}, | |
215 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,}, | |
216 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,}, | |
217 | {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,}, | |
218 | {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,}, | |
219 | /* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */ | |
220 | {} /* Terminating entry */ | |
221 | }; | |
222 | MODULE_DEVICE_TABLE(pci, hp100_pci_tbl); | |
223 | #endif | |
224 | ||
225 | static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO; | |
226 | static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX; | |
227 | static int hp100_mode = 1; | |
228 | ||
229 | module_param(hp100_rx_ratio, int, 0); | |
230 | module_param(hp100_priority_tx, int, 0); | |
231 | module_param(hp100_mode, int, 0); | |
232 | ||
233 | /* | |
234 | * prototypes | |
235 | */ | |
236 | ||
237 | static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, | |
238 | struct pci_dev *pci_dev); | |
239 | ||
240 | ||
241 | static int hp100_open(struct net_device *dev); | |
242 | static int hp100_close(struct net_device *dev); | |
243 | static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
244 | static int hp100_start_xmit_bm(struct sk_buff *skb, | |
245 | struct net_device *dev); | |
246 | static void hp100_rx(struct net_device *dev); | |
247 | static struct net_device_stats *hp100_get_stats(struct net_device *dev); | |
248 | static void hp100_misc_interrupt(struct net_device *dev); | |
249 | static void hp100_update_stats(struct net_device *dev); | |
250 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr); | |
251 | static void hp100_set_multicast_list(struct net_device *dev); | |
7d12e780 | 252 | static irqreturn_t hp100_interrupt(int irq, void *dev_id); |
1da177e4 LT |
253 | static void hp100_start_interface(struct net_device *dev); |
254 | static void hp100_stop_interface(struct net_device *dev); | |
255 | static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr); | |
256 | static int hp100_sense_lan(struct net_device *dev); | |
257 | static int hp100_login_to_vg_hub(struct net_device *dev, | |
258 | u_short force_relogin); | |
259 | static int hp100_down_vg_link(struct net_device *dev); | |
260 | static void hp100_cascade_reset(struct net_device *dev, u_short enable); | |
261 | static void hp100_BM_shutdown(struct net_device *dev); | |
262 | static void hp100_mmuinit(struct net_device *dev); | |
263 | static void hp100_init_pdls(struct net_device *dev); | |
264 | static int hp100_init_rxpdl(struct net_device *dev, | |
265 | register hp100_ring_t * ringptr, | |
266 | register u_int * pdlptr); | |
267 | static int hp100_init_txpdl(struct net_device *dev, | |
268 | register hp100_ring_t * ringptr, | |
269 | register u_int * pdlptr); | |
270 | static void hp100_rxfill(struct net_device *dev); | |
271 | static void hp100_hwinit(struct net_device *dev); | |
272 | static void hp100_clean_txring(struct net_device *dev); | |
273 | #ifdef HP100_DEBUG | |
274 | static void hp100_RegisterDump(struct net_device *dev); | |
275 | #endif | |
276 | ||
277 | /* Conversion to new PCI API : | |
278 | * Convert an address in a kernel buffer to a bus/phys/dma address. | |
279 | * This work *only* for memory fragments part of lp->page_vaddr, | |
280 | * because it was properly DMA allocated via pci_alloc_consistent(), | |
943ffb58 | 281 | * so we just need to "retrieve" the original mapping to bus/phys/dma |
1da177e4 LT |
282 | * address - Jean II */ |
283 | static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr) | |
284 | { | |
285 | struct hp100_private *lp = netdev_priv(dev); | |
286 | return ((u_long) ptr) + lp->whatever_offset; | |
287 | } | |
288 | ||
289 | static inline u_int pdl_map_data(struct hp100_private *lp, void *data) | |
290 | { | |
6aa20a22 | 291 | return pci_map_single(lp->pci_dev, data, |
1da177e4 LT |
292 | MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); |
293 | } | |
294 | ||
295 | /* TODO: This function should not really be needed in a good design... */ | |
296 | static void wait(void) | |
297 | { | |
298 | mdelay(1); | |
299 | } | |
300 | ||
301 | /* | |
302 | * probe functions | |
303 | * These functions should - if possible - avoid doing write operations | |
304 | * since this could cause problems when the card is not installed. | |
305 | */ | |
306 | ||
307 | /* | |
308 | * Read board id and convert to string. | |
309 | * Effectively same code as decode_eisa_sig | |
310 | */ | |
311 | static __devinit const char *hp100_read_id(int ioaddr) | |
312 | { | |
313 | int i; | |
314 | static char str[HP100_SIG_LEN]; | |
315 | unsigned char sig[4], sum; | |
316 | unsigned short rev; | |
317 | ||
318 | hp100_page(ID_MAC_ADDR); | |
319 | sum = 0; | |
320 | for (i = 0; i < 4; i++) { | |
321 | sig[i] = hp100_inb(BOARD_ID + i); | |
322 | sum += sig[i]; | |
323 | } | |
324 | ||
325 | sum += hp100_inb(BOARD_ID + i); | |
326 | if (sum != 0xff) | |
327 | return NULL; /* bad checksum */ | |
328 | ||
329 | str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1); | |
330 | str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1); | |
331 | str[2] = (sig[1] & 0x1f) + ('A' - 1); | |
332 | rev = (sig[2] << 8) | sig[3]; | |
333 | sprintf(str + 3, "%04X", rev); | |
334 | ||
335 | return str; | |
336 | } | |
337 | ||
7525d4bf | 338 | #ifdef CONFIG_ISA |
1da177e4 LT |
339 | static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr) |
340 | { | |
341 | const char *sig; | |
342 | int i; | |
343 | ||
344 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) | |
345 | goto err; | |
346 | ||
347 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) { | |
348 | release_region(ioaddr, HP100_REGION_SIZE); | |
349 | goto err; | |
350 | } | |
351 | ||
352 | sig = hp100_read_id(ioaddr); | |
353 | release_region(ioaddr, HP100_REGION_SIZE); | |
354 | ||
355 | if (sig == NULL) | |
356 | goto err; | |
357 | ||
358 | for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) { | |
6aa20a22 | 359 | if (!strcmp(hp100_isa_tbl[i], sig)) |
1da177e4 LT |
360 | break; |
361 | ||
362 | } | |
363 | ||
364 | if (i < ARRAY_SIZE(hp100_isa_tbl)) | |
365 | return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL); | |
366 | err: | |
367 | return -ENODEV; | |
368 | ||
369 | } | |
370 | /* | |
371 | * Probe for ISA board. | |
372 | * EISA and PCI are handled by device infrastructure. | |
373 | */ | |
374 | ||
375 | static int __init hp100_isa_probe(struct net_device *dev, int addr) | |
376 | { | |
377 | int err = -ENODEV; | |
378 | ||
6aa20a22 | 379 | /* Probe for a specific ISA address */ |
1da177e4 LT |
380 | if (addr > 0xff && addr < 0x400) |
381 | err = hp100_isa_probe1(dev, addr); | |
382 | ||
6aa20a22 | 383 | else if (addr != 0) |
1da177e4 LT |
384 | err = -ENXIO; |
385 | ||
386 | else { | |
387 | /* Probe all ISA possible port regions */ | |
388 | for (addr = 0x100; addr < 0x400; addr += 0x20) { | |
389 | err = hp100_isa_probe1(dev, addr); | |
390 | if (!err) | |
391 | break; | |
392 | } | |
393 | } | |
394 | return err; | |
395 | } | |
7525d4bf | 396 | #endif /* CONFIG_ISA */ |
1da177e4 | 397 | |
7525d4bf | 398 | #if !defined(MODULE) && defined(CONFIG_ISA) |
1da177e4 LT |
399 | struct net_device * __init hp100_probe(int unit) |
400 | { | |
401 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); | |
402 | int err; | |
403 | ||
404 | if (!dev) | |
405 | return ERR_PTR(-ENODEV); | |
406 | ||
1da177e4 LT |
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 | } | |
7525d4bf | 426 | #endif /* !MODULE && CONFIG_ISA */ |
1da177e4 | 427 | |
d9d6f46b SH |
428 | static const struct net_device_ops hp100_bm_netdev_ops = { |
429 | .ndo_open = hp100_open, | |
430 | .ndo_stop = hp100_close, | |
431 | .ndo_start_xmit = hp100_start_xmit_bm, | |
432 | .ndo_get_stats = hp100_get_stats, | |
433 | .ndo_set_multicast_list = hp100_set_multicast_list, | |
434 | .ndo_change_mtu = eth_change_mtu, | |
435 | .ndo_set_mac_address = eth_mac_addr, | |
436 | .ndo_validate_addr = eth_validate_addr, | |
437 | }; | |
438 | ||
439 | static const struct net_device_ops hp100_netdev_ops = { | |
440 | .ndo_open = hp100_open, | |
441 | .ndo_stop = hp100_close, | |
442 | .ndo_start_xmit = hp100_start_xmit, | |
443 | .ndo_get_stats = hp100_get_stats, | |
444 | .ndo_set_multicast_list = hp100_set_multicast_list, | |
445 | .ndo_change_mtu = eth_change_mtu, | |
446 | .ndo_set_mac_address = eth_mac_addr, | |
447 | .ndo_validate_addr = eth_validate_addr, | |
448 | }; | |
449 | ||
1da177e4 LT |
450 | static int __devinit hp100_probe1(struct net_device *dev, int ioaddr, |
451 | u_char bus, struct pci_dev *pci_dev) | |
452 | { | |
453 | int i; | |
454 | int err = -ENODEV; | |
455 | const char *eid; | |
456 | u_int chip; | |
457 | u_char uc; | |
458 | u_int memory_size = 0, virt_memory_size = 0; | |
459 | u_short local_mode, lsw; | |
460 | short mem_mapped; | |
461 | unsigned long mem_ptr_phys; | |
462 | void __iomem *mem_ptr_virt; | |
463 | struct hp100_private *lp; | |
464 | ||
465 | #ifdef HP100_DEBUG_B | |
466 | hp100_outw(0x4201, TRACE); | |
467 | printk("hp100: %s: probe1\n", dev->name); | |
468 | #endif | |
469 | ||
470 | /* memory region for programmed i/o */ | |
471 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) | |
472 | goto out1; | |
473 | ||
6aa20a22 | 474 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) |
1da177e4 LT |
475 | goto out2; |
476 | ||
477 | chip = hp100_inw(PAGING) & HP100_CHIPID_MASK; | |
478 | #ifdef HP100_DEBUG | |
479 | if (chip == HP100_CHIPID_SHASTA) | |
480 | printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name); | |
481 | else if (chip == HP100_CHIPID_RAINIER) | |
482 | printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name); | |
483 | else if (chip == HP100_CHIPID_LASSEN) | |
484 | printk("hp100: %s: Lassen Chip detected.\n", dev->name); | |
485 | else | |
486 | printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip); | |
487 | #endif | |
488 | ||
489 | dev->base_addr = ioaddr; | |
490 | ||
491 | eid = hp100_read_id(ioaddr); | |
492 | if (eid == NULL) { /* bad checksum? */ | |
493 | printk(KERN_WARNING "hp100_probe: bad ID checksum at base port 0x%x\n", ioaddr); | |
494 | goto out2; | |
495 | } | |
496 | ||
497 | hp100_page(ID_MAC_ADDR); | |
498 | for (i = uc = 0; i < 7; i++) | |
499 | uc += hp100_inb(LAN_ADDR + i); | |
500 | if (uc != 0xff) { | |
501 | printk(KERN_WARNING "hp100_probe: bad lan address checksum at port 0x%x)\n", ioaddr); | |
502 | err = -EIO; | |
503 | goto out2; | |
504 | } | |
505 | ||
506 | /* Make sure, that all registers are correctly updated... */ | |
507 | ||
508 | hp100_load_eeprom(dev, ioaddr); | |
509 | wait(); | |
510 | ||
511 | /* | |
512 | * Determine driver operation mode | |
513 | * | |
514 | * Use the variable "hp100_mode" upon insmod or as kernel parameter to | |
515 | * force driver modes: | |
516 | * hp100_mode=1 -> default, use busmaster mode if configured. | |
6aa20a22 | 517 | * hp100_mode=2 -> enable shared memory mode |
1da177e4 LT |
518 | * hp100_mode=3 -> force use of i/o mapped mode. |
519 | * hp100_mode=4 -> same as 1, but re-set the enable bit on the card. | |
520 | */ | |
521 | ||
522 | /* | |
523 | * LSW values: | |
524 | * 0x2278 -> J2585B, PnP shared memory mode | |
525 | * 0x2270 -> J2585B, shared memory mode, 0xdc000 | |
526 | * 0xa23c -> J2585B, I/O mapped mode | |
527 | * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip) | |
528 | * 0x2220 -> EISA HP, I/O (Shasta Chip) | |
529 | * 0x2260 -> EISA HP, BusMaster (Shasta Chip) | |
530 | */ | |
531 | ||
532 | #if 0 | |
533 | local_mode = 0x2270; | |
534 | hp100_outw(0xfefe, OPTION_LSW); | |
535 | hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW); | |
536 | #endif | |
537 | ||
538 | /* hp100_mode value maybe used in future by another card */ | |
539 | local_mode = hp100_mode; | |
540 | if (local_mode < 1 || local_mode > 4) | |
541 | local_mode = 1; /* default */ | |
542 | #ifdef HP100_DEBUG | |
543 | printk("hp100: %s: original LSW = 0x%x\n", dev->name, | |
544 | hp100_inw(OPTION_LSW)); | |
545 | #endif | |
546 | ||
547 | if (local_mode == 3) { | |
548 | hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); | |
549 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
550 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
551 | printk("hp100: IO mapped mode forced.\n"); | |
552 | } else if (local_mode == 2) { | |
553 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
554 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
555 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
556 | printk("hp100: Shared memory mode requested.\n"); | |
557 | } else if (local_mode == 4) { | |
558 | if (chip == HP100_CHIPID_LASSEN) { | |
559 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); | |
560 | hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); | |
561 | printk("hp100: Busmaster mode requested.\n"); | |
562 | } | |
563 | local_mode = 1; | |
564 | } | |
565 | ||
566 | if (local_mode == 1) { /* default behaviour */ | |
567 | lsw = hp100_inw(OPTION_LSW); | |
568 | ||
569 | if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && | |
570 | (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { | |
571 | #ifdef HP100_DEBUG | |
572 | printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); | |
573 | #endif | |
574 | local_mode = 3; | |
575 | } else if (chip == HP100_CHIPID_LASSEN && | |
576 | (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { | |
577 | /* Conversion to new PCI API : | |
578 | * I don't have the doc, but I assume that the card | |
579 | * can map the full 32bit address space. | |
580 | * Also, we can have EISA Busmaster cards (not tested), | |
581 | * so beware !!! - Jean II */ | |
582 | if((bus == HP100_BUS_PCI) && | |
1e7f0bd8 | 583 | (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK))) { |
1da177e4 LT |
584 | /* Gracefully fallback to shared memory */ |
585 | goto busmasterfail; | |
586 | } | |
587 | printk("hp100: Busmaster mode enabled.\n"); | |
588 | hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); | |
589 | } else { | |
590 | busmasterfail: | |
591 | #ifdef HP100_DEBUG | |
592 | printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); | |
593 | printk("hp100: %s: Trying shared memory mode.\n", dev->name); | |
594 | #endif | |
595 | /* In this case, try shared memory mode */ | |
596 | local_mode = 2; | |
597 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
598 | /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ | |
599 | } | |
600 | } | |
601 | #ifdef HP100_DEBUG | |
602 | printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); | |
603 | #endif | |
604 | ||
605 | /* Check for shared memory on the card, eventually remap it */ | |
606 | hp100_page(HW_MAP); | |
607 | mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); | |
608 | mem_ptr_phys = 0UL; | |
609 | mem_ptr_virt = NULL; | |
610 | memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); | |
611 | virt_memory_size = 0; | |
612 | ||
613 | /* For memory mapped or busmaster mode, we want the memory address */ | |
614 | if (mem_mapped || (local_mode == 1)) { | |
615 | mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); | |
616 | mem_ptr_phys &= ~0x1fff; /* 8k alignment */ | |
617 | ||
618 | if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { | |
619 | printk("hp100: Can only use programmed i/o mode.\n"); | |
620 | mem_ptr_phys = 0; | |
621 | mem_mapped = 0; | |
622 | local_mode = 3; /* Use programmed i/o */ | |
623 | } | |
624 | ||
625 | /* We do not need access to shared memory in busmaster mode */ | |
626 | /* However in slave mode we need to remap high (>1GB) card memory */ | |
627 | if (local_mode != 1) { /* = not busmaster */ | |
628 | /* We try with smaller memory sizes, if ioremap fails */ | |
629 | for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { | |
630 | if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { | |
631 | #ifdef HP100_DEBUG | |
632 | printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); | |
633 | #endif | |
634 | } else { | |
635 | #ifdef HP100_DEBUG | |
636 | 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); | |
637 | #endif | |
638 | break; | |
639 | } | |
640 | } | |
641 | ||
642 | if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ | |
643 | printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); | |
644 | local_mode = 3; | |
645 | virt_memory_size = 0; | |
646 | } | |
647 | } | |
648 | } | |
649 | ||
650 | if (local_mode == 3) { /* io mapped forced */ | |
651 | mem_mapped = 0; | |
652 | mem_ptr_phys = 0; | |
653 | mem_ptr_virt = NULL; | |
654 | printk("hp100: Using (slow) programmed i/o mode.\n"); | |
655 | } | |
656 | ||
657 | /* Initialise the "private" data structure for this card. */ | |
658 | lp = netdev_priv(dev); | |
659 | ||
660 | spin_lock_init(&lp->lock); | |
661 | strlcpy(lp->id, eid, HP100_SIG_LEN); | |
662 | lp->chip = chip; | |
663 | lp->mode = local_mode; | |
664 | lp->bus = bus; | |
665 | lp->pci_dev = pci_dev; | |
666 | lp->priority_tx = hp100_priority_tx; | |
667 | lp->rx_ratio = hp100_rx_ratio; | |
668 | lp->mem_ptr_phys = mem_ptr_phys; | |
669 | lp->mem_ptr_virt = mem_ptr_virt; | |
670 | hp100_page(ID_MAC_ADDR); | |
671 | lp->soft_model = hp100_inb(SOFT_MODEL); | |
672 | lp->mac1_mode = HP100_MAC1MODE3; | |
673 | lp->mac2_mode = HP100_MAC2MODE3; | |
674 | memset(&lp->hash_bytes, 0x00, 8); | |
675 | ||
676 | dev->base_addr = ioaddr; | |
677 | ||
678 | lp->memory_size = memory_size; | |
679 | lp->virt_memory_size = virt_memory_size; | |
680 | lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ | |
681 | ||
1da177e4 | 682 | if (lp->mode == 1) /* busmaster */ |
d9d6f46b | 683 | dev->netdev_ops = &hp100_bm_netdev_ops; |
1da177e4 | 684 | else |
d9d6f46b | 685 | dev->netdev_ops = &hp100_netdev_ops; |
1da177e4 LT |
686 | |
687 | /* Ask the card for which IRQ line it is configured */ | |
688 | if (bus == HP100_BUS_PCI) { | |
689 | dev->irq = pci_dev->irq; | |
690 | } else { | |
691 | hp100_page(HW_MAP); | |
692 | dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; | |
693 | if (dev->irq == 2) | |
694 | dev->irq = 9; | |
695 | } | |
696 | ||
697 | if (lp->mode == 1) /* busmaster */ | |
698 | dev->dma = 4; | |
699 | ||
700 | /* Ask the card for its MAC address and store it for later use. */ | |
701 | hp100_page(ID_MAC_ADDR); | |
702 | for (i = uc = 0; i < 6; i++) | |
703 | dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); | |
704 | ||
705 | /* Reset statistics (counters) */ | |
706 | hp100_clear_stats(lp, ioaddr); | |
707 | ||
708 | /* If busmaster mode is wanted, a dma-capable memory area is needed for | |
6aa20a22 | 709 | * the rx and tx PDLs |
1da177e4 | 710 | * PCI cards can access the whole PC memory. Therefore GFP_DMA is not |
6aa20a22 | 711 | * needed for the allocation of the memory area. |
1da177e4 LT |
712 | */ |
713 | ||
714 | /* TODO: We do not need this with old cards, where PDLs are stored | |
715 | * in the cards shared memory area. But currently, busmaster has been | |
716 | * implemented/tested only with the lassen chip anyway... */ | |
717 | if (lp->mode == 1) { /* busmaster */ | |
718 | dma_addr_t page_baddr; | |
719 | /* Get physically continous memory for TX & RX PDLs */ | |
720 | /* Conversion to new PCI API : | |
721 | * Pages are always aligned and zeroed, no need to it ourself. | |
722 | * Doc says should be OK for EISA bus as well - Jean II */ | |
723 | if ((lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr)) == NULL) { | |
724 | err = -ENOMEM; | |
725 | goto out2; | |
726 | } | |
727 | lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); | |
728 | ||
729 | #ifdef HP100_DEBUG_BM | |
730 | 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); | |
731 | #endif | |
732 | lp->rxrcommit = lp->txrcommit = 0; | |
733 | lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); | |
734 | lp->txrhead = lp->txrtail = &(lp->txring[0]); | |
735 | } | |
736 | ||
737 | /* Initialise the card. */ | |
6aa20a22 | 738 | /* (I'm not really sure if it's a good idea to do this during probing, but |
1da177e4 LT |
739 | * like this it's assured that the lan connection type can be sensed |
740 | * correctly) | |
741 | */ | |
742 | hp100_hwinit(dev); | |
743 | ||
744 | /* Try to find out which kind of LAN the card is connected to. */ | |
745 | lp->lan_type = hp100_sense_lan(dev); | |
746 | ||
747 | /* Print out a message what about what we think we have probed. */ | |
748 | printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); | |
749 | switch (bus) { | |
750 | case HP100_BUS_EISA: | |
751 | printk("EISA"); | |
752 | break; | |
753 | case HP100_BUS_PCI: | |
754 | printk("PCI"); | |
755 | break; | |
756 | default: | |
757 | printk("ISA"); | |
758 | break; | |
759 | } | |
760 | printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); | |
761 | ||
762 | if (lp->mode == 2) { /* memory mapped */ | |
763 | printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, | |
764 | (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); | |
765 | if (mem_ptr_virt) | |
766 | printk(" (virtual base %p)", mem_ptr_virt); | |
767 | printk(".\n"); | |
768 | ||
769 | /* Set for info when doing ifconfig */ | |
770 | dev->mem_start = mem_ptr_phys; | |
771 | dev->mem_end = mem_ptr_phys + lp->memory_size; | |
772 | } | |
773 | ||
774 | printk("hp100: "); | |
775 | if (lp->lan_type != HP100_LAN_ERR) | |
776 | printk("Adapter is attached to "); | |
777 | switch (lp->lan_type) { | |
778 | case HP100_LAN_100: | |
779 | printk("100Mb/s Voice Grade AnyLAN network.\n"); | |
780 | break; | |
781 | case HP100_LAN_10: | |
782 | printk("10Mb/s network (10baseT).\n"); | |
783 | break; | |
784 | case HP100_LAN_COAX: | |
785 | printk("10Mb/s network (coax).\n"); | |
786 | break; | |
787 | default: | |
788 | printk("Warning! Link down.\n"); | |
789 | } | |
790 | ||
b1fc5505 | 791 | err = register_netdev(dev); |
792 | if (err) | |
793 | goto out3; | |
794 | ||
1da177e4 | 795 | return 0; |
b1fc5505 | 796 | out3: |
797 | if (local_mode == 1) | |
6aa20a22 JG |
798 | pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, |
799 | lp->page_vaddr_algn, | |
b1fc5505 | 800 | virt_to_whatever(dev, lp->page_vaddr_algn)); |
801 | if (mem_ptr_virt) | |
802 | iounmap(mem_ptr_virt); | |
1da177e4 LT |
803 | out2: |
804 | release_region(ioaddr, HP100_REGION_SIZE); | |
805 | out1: | |
b1fc5505 | 806 | return err; |
1da177e4 LT |
807 | } |
808 | ||
809 | /* This procedure puts the card into a stable init state */ | |
810 | static void hp100_hwinit(struct net_device *dev) | |
811 | { | |
812 | int ioaddr = dev->base_addr; | |
813 | struct hp100_private *lp = netdev_priv(dev); | |
814 | ||
815 | #ifdef HP100_DEBUG_B | |
816 | hp100_outw(0x4202, TRACE); | |
817 | printk("hp100: %s: hwinit\n", dev->name); | |
818 | #endif | |
819 | ||
820 | /* Initialise the card. -------------------------------------------- */ | |
821 | ||
822 | /* Clear all pending Ints and disable Ints */ | |
823 | hp100_page(PERFORMANCE); | |
824 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
825 | hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ | |
826 | ||
827 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
828 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); | |
829 | ||
830 | if (lp->mode == 1) { | |
831 | hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ | |
832 | wait(); | |
833 | } else { | |
834 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
835 | hp100_cascade_reset(dev, 1); | |
836 | hp100_page(MAC_CTRL); | |
837 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); | |
838 | } | |
839 | ||
840 | /* Initiate EEPROM reload */ | |
841 | hp100_load_eeprom(dev, 0); | |
842 | ||
843 | wait(); | |
844 | ||
845 | /* Go into reset again. */ | |
846 | hp100_cascade_reset(dev, 1); | |
847 | ||
848 | /* Set Option Registers to a safe state */ | |
849 | hp100_outw(HP100_DEBUG_EN | | |
850 | HP100_RX_HDR | | |
851 | HP100_EE_EN | | |
852 | HP100_BM_WRITE | | |
853 | HP100_BM_READ | HP100_RESET_HB | | |
854 | HP100_FAKE_INT | | |
855 | HP100_INT_EN | | |
856 | HP100_MEM_EN | | |
857 | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); | |
858 | ||
859 | hp100_outw(HP100_TRI_INT | | |
860 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); | |
861 | ||
862 | hp100_outb(HP100_PRIORITY_TX | | |
863 | HP100_ADV_NXT_PKT | | |
864 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); | |
865 | ||
866 | /* TODO: Configure MMU for Ram Test. */ | |
867 | /* TODO: Ram Test. */ | |
868 | ||
869 | /* Re-check if adapter is still at same i/o location */ | |
870 | /* (If the base i/o in eeprom has been changed but the */ | |
871 | /* registers had not been changed, a reload of the eeprom */ | |
872 | /* would move the adapter to the address stored in eeprom */ | |
873 | ||
874 | /* TODO: Code to implement. */ | |
875 | ||
876 | /* Until here it was code from HWdiscover procedure. */ | |
877 | /* Next comes code from mmuinit procedure of SCO BM driver which is | |
878 | * called from HWconfigure in the SCO driver. */ | |
879 | ||
6aa20a22 | 880 | /* Initialise MMU, eventually switch on Busmaster Mode, initialise |
1da177e4 LT |
881 | * multicast filter... |
882 | */ | |
883 | hp100_mmuinit(dev); | |
884 | ||
885 | /* We don't turn the interrupts on here - this is done by start_interface. */ | |
886 | wait(); /* TODO: Do we really need this? */ | |
887 | ||
888 | /* Enable Hardware (e.g. unreset) */ | |
889 | hp100_cascade_reset(dev, 0); | |
890 | ||
891 | /* ------- initialisation complete ----------- */ | |
892 | ||
893 | /* Finally try to log in the Hub if there may be a VG connection. */ | |
894 | if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) | |
895 | hp100_login_to_vg_hub(dev, 0); /* relogin */ | |
896 | ||
897 | } | |
1da177e4 | 898 | |
6aa20a22 JG |
899 | |
900 | /* | |
1da177e4 | 901 | * mmuinit - Reinitialise Cascade MMU and MAC settings. |
6aa20a22 | 902 | * Note: Must already be in reset and leaves card in reset. |
1da177e4 LT |
903 | */ |
904 | static void hp100_mmuinit(struct net_device *dev) | |
905 | { | |
906 | int ioaddr = dev->base_addr; | |
907 | struct hp100_private *lp = netdev_priv(dev); | |
908 | int i; | |
909 | ||
910 | #ifdef HP100_DEBUG_B | |
911 | hp100_outw(0x4203, TRACE); | |
912 | printk("hp100: %s: mmuinit\n", dev->name); | |
913 | #endif | |
914 | ||
915 | #ifdef HP100_DEBUG | |
916 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { | |
917 | printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); | |
918 | return; | |
919 | } | |
920 | #endif | |
921 | ||
922 | /* Make sure IRQs are masked off and ack'ed. */ | |
923 | hp100_page(PERFORMANCE); | |
924 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
925 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
926 | ||
927 | /* | |
6aa20a22 | 928 | * Enable Hardware |
1da177e4 LT |
929 | * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En |
930 | * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable | |
931 | * - Clear Priority, Advance Pkt and Xmit Cmd | |
932 | */ | |
933 | ||
934 | hp100_outw(HP100_DEBUG_EN | | |
935 | HP100_RX_HDR | | |
936 | HP100_EE_EN | HP100_RESET_HB | | |
937 | HP100_IO_EN | | |
938 | HP100_FAKE_INT | | |
939 | HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
940 | ||
941 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); | |
942 | ||
943 | if (lp->mode == 1) { /* busmaster */ | |
944 | hp100_outw(HP100_BM_WRITE | | |
945 | HP100_BM_READ | | |
946 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); | |
947 | } else if (lp->mode == 2) { /* memory mapped */ | |
948 | hp100_outw(HP100_BM_WRITE | | |
949 | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); | |
950 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); | |
951 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); | |
952 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
953 | } else if (lp->mode == 3) { /* i/o mapped mode */ | |
954 | hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | | |
955 | HP100_IO_EN | HP100_SET_LB, OPTION_LSW); | |
956 | } | |
957 | ||
958 | hp100_page(HW_MAP); | |
959 | hp100_outb(0, EARLYRXCFG); | |
960 | hp100_outw(0, EARLYTXCFG); | |
961 | ||
962 | /* | |
963 | * Enable Bus Master mode | |
964 | */ | |
965 | if (lp->mode == 1) { /* busmaster */ | |
966 | /* Experimental: Set some PCI configuration bits */ | |
967 | hp100_page(HW_MAP); | |
968 | hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ | |
969 | hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ | |
970 | ||
971 | /* PCI Bus failures should result in a Misc. Interrupt */ | |
972 | hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); | |
973 | ||
974 | hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); | |
975 | hp100_page(HW_MAP); | |
976 | /* Use Burst Mode and switch on PAGE_CK */ | |
977 | hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); | |
978 | if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) | |
979 | hp100_orb(HP100_BM_PAGE_CK, BM); | |
980 | hp100_orb(HP100_BM_MASTER, BM); | |
981 | } else { /* not busmaster */ | |
982 | ||
983 | hp100_page(HW_MAP); | |
984 | hp100_andb(~HP100_BM_MASTER, BM); | |
985 | } | |
986 | ||
987 | /* | |
988 | * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs | |
989 | */ | |
990 | hp100_page(MMU_CFG); | |
991 | if (lp->mode == 1) { /* only needed for Busmaster */ | |
992 | int xmit_stop, recv_stop; | |
993 | ||
994 | if ((lp->chip == HP100_CHIPID_RAINIER) | |
995 | || (lp->chip == HP100_CHIPID_SHASTA)) { | |
996 | int pdl_stop; | |
997 | ||
998 | /* | |
999 | * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and | |
1000 | * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded | |
1001 | * to the next higher 1k boundary) bytes for the rx-pdl's | |
1002 | * Note: For non-etr chips the transmit stop register must be | |
6aa20a22 | 1003 | * programmed on a 1k boundary, i.e. bits 9:0 must be zero. |
1da177e4 LT |
1004 | */ |
1005 | pdl_stop = lp->memory_size; | |
1006 | xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); | |
1007 | recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); | |
1008 | hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); | |
1009 | #ifdef HP100_DEBUG_BM | |
1010 | printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); | |
1011 | #endif | |
1012 | } else { | |
1013 | /* ETR chip (Lassen) in busmaster mode */ | |
1014 | xmit_stop = (lp->memory_size) - 1; | |
1015 | recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); | |
1016 | } | |
1017 | ||
1018 | hp100_outw(xmit_stop >> 4, TX_MEM_STOP); | |
1019 | hp100_outw(recv_stop >> 4, RX_MEM_STOP); | |
1020 | #ifdef HP100_DEBUG_BM | |
1021 | printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); | |
1022 | printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); | |
1023 | #endif | |
1024 | } else { | |
1025 | /* Slave modes (memory mapped and programmed io) */ | |
1026 | hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); | |
1027 | hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); | |
1028 | #ifdef HP100_DEBUG | |
1029 | printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); | |
1030 | printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); | |
1031 | #endif | |
1032 | } | |
1033 | ||
1034 | /* Write MAC address into page 1 */ | |
1035 | hp100_page(MAC_ADDRESS); | |
1036 | for (i = 0; i < 6; i++) | |
1037 | hp100_outb(dev->dev_addr[i], MAC_ADDR + i); | |
1038 | ||
1039 | /* Zero the multicast hash registers */ | |
1040 | for (i = 0; i < 8; i++) | |
1041 | hp100_outb(0x0, HASH_BYTE0 + i); | |
1042 | ||
1043 | /* Set up MAC defaults */ | |
1044 | hp100_page(MAC_CTRL); | |
1045 | ||
1046 | /* Go to LAN Page and zero all filter bits */ | |
1047 | /* Zero accept error, accept multicast, accept broadcast and accept */ | |
1048 | /* all directed packet bits */ | |
1049 | hp100_andb(~(HP100_RX_EN | | |
1050 | HP100_TX_EN | | |
1051 | HP100_ACC_ERRORED | | |
1052 | HP100_ACC_MC | | |
1053 | HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); | |
1054 | ||
1055 | hp100_outb(0x00, MAC_CFG_2); | |
1056 | ||
1057 | /* Zero the frame format bit. This works around a training bug in the */ | |
1058 | /* new hubs. */ | |
1059 | hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ | |
1060 | ||
1061 | if (lp->priority_tx) | |
1062 | hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); | |
1063 | else | |
1064 | hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); | |
1065 | ||
1066 | hp100_outb(HP100_ADV_NXT_PKT | | |
1067 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); | |
1068 | ||
1069 | /* If busmaster, initialize the PDLs */ | |
1070 | if (lp->mode == 1) | |
1071 | hp100_init_pdls(dev); | |
1072 | ||
1073 | /* Go to performance page and initalize isr and imr registers */ | |
1074 | hp100_page(PERFORMANCE); | |
1075 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
1076 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
1077 | } | |
1078 | ||
1079 | /* | |
1080 | * open/close functions | |
1081 | */ | |
1082 | ||
1083 | static int hp100_open(struct net_device *dev) | |
1084 | { | |
1085 | struct hp100_private *lp = netdev_priv(dev); | |
1086 | #ifdef HP100_DEBUG_B | |
1087 | int ioaddr = dev->base_addr; | |
1088 | #endif | |
1089 | ||
1090 | #ifdef HP100_DEBUG_B | |
1091 | hp100_outw(0x4204, TRACE); | |
1092 | printk("hp100: %s: open\n", dev->name); | |
1093 | #endif | |
1094 | ||
1095 | /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ | |
1096 | if (request_irq(dev->irq, hp100_interrupt, | |
1097 | lp->bus == HP100_BUS_PCI || lp->bus == | |
1fb9df5d | 1098 | HP100_BUS_EISA ? IRQF_SHARED : IRQF_DISABLED, |
1da177e4 LT |
1099 | "hp100", dev)) { |
1100 | printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); | |
1101 | return -EAGAIN; | |
1102 | } | |
1103 | ||
1104 | dev->trans_start = jiffies; | |
1105 | netif_start_queue(dev); | |
1106 | ||
1107 | lp->lan_type = hp100_sense_lan(dev); | |
1108 | lp->mac1_mode = HP100_MAC1MODE3; | |
1109 | lp->mac2_mode = HP100_MAC2MODE3; | |
1110 | memset(&lp->hash_bytes, 0x00, 8); | |
1111 | ||
1112 | hp100_stop_interface(dev); | |
1113 | ||
1114 | hp100_hwinit(dev); | |
1115 | ||
1116 | hp100_start_interface(dev); /* sets mac modes, enables interrupts */ | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | /* The close function is called when the interface is to be brought down */ | |
1122 | static int hp100_close(struct net_device *dev) | |
1123 | { | |
1124 | int ioaddr = dev->base_addr; | |
1125 | struct hp100_private *lp = netdev_priv(dev); | |
1126 | ||
1127 | #ifdef HP100_DEBUG_B | |
1128 | hp100_outw(0x4205, TRACE); | |
1129 | printk("hp100: %s: close\n", dev->name); | |
1130 | #endif | |
1131 | ||
1132 | hp100_page(PERFORMANCE); | |
1133 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ | |
1134 | ||
1135 | hp100_stop_interface(dev); | |
1136 | ||
1137 | if (lp->lan_type == HP100_LAN_100) | |
1138 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1139 | ||
1140 | netif_stop_queue(dev); | |
1141 | ||
1142 | free_irq(dev->irq, dev); | |
1143 | ||
1144 | #ifdef HP100_DEBUG | |
1145 | printk("hp100: %s: close LSW = 0x%x\n", dev->name, | |
1146 | hp100_inw(OPTION_LSW)); | |
1147 | #endif | |
1148 | ||
1149 | return 0; | |
1150 | } | |
6aa20a22 | 1151 | |
1da177e4 LT |
1152 | |
1153 | /* | |
6aa20a22 | 1154 | * Configure the PDL Rx rings and LAN |
1da177e4 LT |
1155 | */ |
1156 | static void hp100_init_pdls(struct net_device *dev) | |
1157 | { | |
1158 | struct hp100_private *lp = netdev_priv(dev); | |
1159 | hp100_ring_t *ringptr; | |
1160 | u_int *pageptr; /* Warning : increment by 4 - Jean II */ | |
1161 | int i; | |
1162 | ||
1163 | #ifdef HP100_DEBUG_B | |
1164 | int ioaddr = dev->base_addr; | |
1165 | #endif | |
1166 | ||
1167 | #ifdef HP100_DEBUG_B | |
1168 | hp100_outw(0x4206, TRACE); | |
1169 | printk("hp100: %s: init pdls\n", dev->name); | |
1170 | #endif | |
1171 | ||
79ea13ce | 1172 | if (!lp->page_vaddr_algn) |
1da177e4 LT |
1173 | printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); |
1174 | else { | |
1175 | /* pageptr shall point into the DMA accessible memory region */ | |
1176 | /* we use this pointer to status the upper limit of allocated */ | |
1177 | /* memory in the allocated page. */ | |
1178 | /* note: align the pointers to the pci cache line size */ | |
1179 | memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ | |
1180 | pageptr = lp->page_vaddr_algn; | |
1181 | ||
1182 | lp->rxrcommit = 0; | |
1183 | ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); | |
1184 | ||
1185 | /* Initialise Rx Ring */ | |
1186 | for (i = MAX_RX_PDL - 1; i >= 0; i--) { | |
1187 | lp->rxring[i].next = ringptr; | |
1188 | ringptr = &(lp->rxring[i]); | |
1189 | pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); | |
1190 | } | |
1191 | ||
1192 | /* Initialise Tx Ring */ | |
1193 | lp->txrcommit = 0; | |
1194 | ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); | |
1195 | for (i = MAX_TX_PDL - 1; i >= 0; i--) { | |
1196 | lp->txring[i].next = ringptr; | |
1197 | ringptr = &(lp->txring[i]); | |
1198 | pageptr += hp100_init_txpdl(dev, ringptr, pageptr); | |
1199 | } | |
1200 | } | |
1201 | } | |
6aa20a22 | 1202 | |
1da177e4 LT |
1203 | |
1204 | /* These functions "format" the entries in the pdl structure */ | |
1205 | /* They return how much memory the fragments need. */ | |
1206 | static int hp100_init_rxpdl(struct net_device *dev, | |
1207 | register hp100_ring_t * ringptr, | |
1208 | register u32 * pdlptr) | |
1209 | { | |
1210 | /* pdlptr is starting address for this pdl */ | |
1211 | ||
1212 | if (0 != (((unsigned long) pdlptr) & 0xf)) | |
1213 | printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", | |
1214 | dev->name, (unsigned long) pdlptr); | |
1215 | ||
1216 | ringptr->pdl = pdlptr + 1; | |
1217 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); | |
1218 | ringptr->skb = (void *) NULL; | |
1219 | ||
6aa20a22 | 1220 | /* |
1da177e4 LT |
1221 | * Write address and length of first PDL Fragment (which is used for |
1222 | * storing the RX-Header | |
6aa20a22 | 1223 | * We use the 4 bytes _before_ the PDH in the pdl memory area to |
1da177e4 LT |
1224 | * store this information. (PDH is at offset 0x04) |
1225 | */ | |
1226 | /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ | |
1227 | ||
1228 | *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ | |
1229 | *(pdlptr + 3) = 4; /* Length Frag 1 */ | |
1230 | ||
c40cf519 | 1231 | return roundup(MAX_RX_FRAG * 2 + 2, 4); |
1da177e4 LT |
1232 | } |
1233 | ||
1234 | ||
1235 | static int hp100_init_txpdl(struct net_device *dev, | |
1236 | register hp100_ring_t * ringptr, | |
1237 | register u32 * pdlptr) | |
1238 | { | |
1239 | if (0 != (((unsigned long) pdlptr) & 0xf)) | |
1240 | printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); | |
1241 | ||
1242 | ringptr->pdl = pdlptr; /* +1; */ | |
1243 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ | |
1244 | ringptr->skb = (void *) NULL; | |
1245 | ||
c40cf519 | 1246 | return roundup(MAX_TX_FRAG * 2 + 2, 4); |
1da177e4 LT |
1247 | } |
1248 | ||
1249 | /* | |
6aa20a22 | 1250 | * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes |
1da177e4 | 1251 | * for possible odd word alignment rounding up to next dword and set PDL |
6aa20a22 | 1252 | * address for fragment#2 |
1da177e4 LT |
1253 | * Returns: 0 if unable to allocate skb_buff |
1254 | * 1 if successful | |
1255 | */ | |
1256 | static int hp100_build_rx_pdl(hp100_ring_t * ringptr, | |
1257 | struct net_device *dev) | |
1258 | { | |
1259 | #ifdef HP100_DEBUG_B | |
1260 | int ioaddr = dev->base_addr; | |
1261 | #endif | |
1262 | #ifdef HP100_DEBUG_BM | |
1263 | u_int *p; | |
1264 | #endif | |
1265 | ||
1266 | #ifdef HP100_DEBUG_B | |
1267 | hp100_outw(0x4207, TRACE); | |
1268 | printk("hp100: %s: build rx pdl\n", dev->name); | |
1269 | #endif | |
1270 | ||
1271 | /* Allocate skb buffer of maximum size */ | |
6aa20a22 | 1272 | /* Note: This depends on the alloc_skb functions allocating more |
1da177e4 LT |
1273 | * space than requested, i.e. aligning to 16bytes */ |
1274 | ||
c40cf519 | 1275 | ringptr->skb = dev_alloc_skb(roundup(MAX_ETHER_SIZE + 2, 4)); |
1da177e4 LT |
1276 | |
1277 | if (NULL != ringptr->skb) { | |
6aa20a22 | 1278 | /* |
1da177e4 LT |
1279 | * Reserve 2 bytes at the head of the buffer to land the IP header |
1280 | * on a long word boundary (According to the Network Driver section | |
1281 | * in the Linux KHG, this should help to increase performance.) | |
1282 | */ | |
1283 | skb_reserve(ringptr->skb, 2); | |
1284 | ||
1285 | ringptr->skb->dev = dev; | |
1286 | ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE); | |
1287 | ||
1288 | /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ | |
1289 | /* Note: 1st Fragment is used for the 4 byte packet status | |
6aa20a22 | 1290 | * (receive header). Its PDL entries are set up by init_rxpdl. So |
1da177e4 | 1291 | * here we only have to set up the PDL fragment entries for the data |
6aa20a22 JG |
1292 | * part. Those 4 bytes will be stored in the DMA memory region |
1293 | * directly before the PDL. | |
1da177e4 LT |
1294 | */ |
1295 | #ifdef HP100_DEBUG_BM | |
1296 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", | |
1297 | dev->name, (u_int) ringptr->pdl, | |
c40cf519 | 1298 | roundup(MAX_ETHER_SIZE + 2, 4), |
1da177e4 LT |
1299 | (unsigned int) ringptr->skb->data); |
1300 | #endif | |
1301 | ||
1302 | /* Conversion to new PCI API : map skbuf data to PCI bus. | |
1303 | * Doc says it's OK for EISA as well - Jean II */ | |
1304 | ringptr->pdl[0] = 0x00020000; /* Write PDH */ | |
6aa20a22 | 1305 | ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), |
1da177e4 LT |
1306 | ringptr->skb->data); |
1307 | ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ | |
1308 | ||
1309 | #ifdef HP100_DEBUG_BM | |
1310 | for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) | |
1311 | printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); | |
1312 | #endif | |
1313 | return (1); | |
1314 | } | |
1315 | /* else: */ | |
1316 | /* alloc_skb failed (no memory) -> still can receive the header | |
1317 | * fragment into PDL memory. make PDL safe by clearing msgptr and | |
1318 | * making the PDL only 1 fragment (i.e. the 4 byte packet status) | |
1319 | */ | |
1320 | #ifdef HP100_DEBUG_BM | |
1321 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); | |
1322 | #endif | |
1323 | ||
1324 | ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ | |
1325 | ||
1326 | return (0); | |
1327 | } | |
1328 | ||
1329 | /* | |
1330 | * hp100_rxfill - attempt to fill the Rx Ring will empty skb's | |
1331 | * | |
1332 | * Makes assumption that skb's are always contiguous memory areas and | |
1333 | * therefore PDLs contain only 2 physical fragments. | |
1334 | * - While the number of Rx PDLs with buffers is less than maximum | |
1335 | * a. Get a maximum packet size skb | |
1336 | * b. Put the physical address of the buffer into the PDL. | |
1337 | * c. Output physical address of PDL to adapter. | |
1338 | */ | |
1339 | static void hp100_rxfill(struct net_device *dev) | |
1340 | { | |
1341 | int ioaddr = dev->base_addr; | |
1342 | ||
1343 | struct hp100_private *lp = netdev_priv(dev); | |
1344 | hp100_ring_t *ringptr; | |
1345 | ||
1346 | #ifdef HP100_DEBUG_B | |
1347 | hp100_outw(0x4208, TRACE); | |
1348 | printk("hp100: %s: rxfill\n", dev->name); | |
1349 | #endif | |
1350 | ||
1351 | hp100_page(PERFORMANCE); | |
1352 | ||
1353 | while (lp->rxrcommit < MAX_RX_PDL) { | |
1354 | /* | |
1355 | ** Attempt to get a buffer and build a Rx PDL. | |
1356 | */ | |
1357 | ringptr = lp->rxrtail; | |
1358 | if (0 == hp100_build_rx_pdl(ringptr, dev)) { | |
1359 | return; /* None available, return */ | |
1360 | } | |
1361 | ||
1362 | /* Hand this PDL over to the card */ | |
1363 | /* Note: This needs performance page selected! */ | |
1364 | #ifdef HP100_DEBUG_BM | |
1365 | printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", | |
1366 | dev->name, lp->rxrcommit, (u_int) ringptr->pdl, | |
1367 | (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); | |
1368 | #endif | |
1369 | ||
1370 | hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); | |
1371 | ||
1372 | lp->rxrcommit += 1; | |
1373 | lp->rxrtail = ringptr->next; | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | /* | |
1378 | * BM_shutdown - shutdown bus mastering and leave chip in reset state | |
1379 | */ | |
1380 | ||
1381 | static void hp100_BM_shutdown(struct net_device *dev) | |
1382 | { | |
1383 | int ioaddr = dev->base_addr; | |
1384 | struct hp100_private *lp = netdev_priv(dev); | |
1385 | unsigned long time; | |
1386 | ||
1387 | #ifdef HP100_DEBUG_B | |
1388 | hp100_outw(0x4209, TRACE); | |
1389 | printk("hp100: %s: bm shutdown\n", dev->name); | |
1390 | #endif | |
1391 | ||
1392 | hp100_page(PERFORMANCE); | |
1393 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
1394 | hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ | |
1395 | ||
1396 | /* Ensure Interrupts are off */ | |
1397 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); | |
1398 | ||
1399 | /* Disable all MAC activity */ | |
1400 | hp100_page(MAC_CTRL); | |
1401 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ | |
1402 | ||
1403 | /* If cascade MMU is not already in reset */ | |
1404 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { | |
1405 | /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so | |
1406 | * MMU pointers will not be reset out from underneath | |
1407 | */ | |
1408 | hp100_page(MAC_CTRL); | |
1409 | for (time = 0; time < 5000; time++) { | |
1410 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) | |
1411 | break; | |
1412 | } | |
1413 | ||
1414 | /* Shutdown algorithm depends on the generation of Cascade */ | |
1415 | if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ | |
1416 | /* Disable Busmaster mode and wait for bit to go to zero. */ | |
1417 | hp100_page(HW_MAP); | |
1418 | hp100_andb(~HP100_BM_MASTER, BM); | |
1419 | /* 100 ms timeout */ | |
1420 | for (time = 0; time < 32000; time++) { | |
1421 | if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) | |
1422 | break; | |
1423 | } | |
1424 | } else { /* Shasta or Rainier Shutdown/Reset */ | |
1425 | /* To ensure all bus master inloading activity has ceased, | |
6aa20a22 | 1426 | * wait for no Rx PDAs or no Rx packets on card. |
1da177e4 LT |
1427 | */ |
1428 | hp100_page(PERFORMANCE); | |
1429 | /* 100 ms timeout */ | |
1430 | for (time = 0; time < 10000; time++) { | |
1431 | /* RX_PDL: PDLs not executed. */ | |
1432 | /* RX_PKT_CNT: RX'd packets on card. */ | |
1433 | if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) | |
1434 | break; | |
1435 | } | |
1436 | ||
1437 | if (time >= 10000) | |
1438 | printk("hp100: %s: BM shutdown error.\n", dev->name); | |
1439 | ||
1440 | /* To ensure all bus master outloading activity has ceased, | |
1441 | * wait until the Tx PDA count goes to zero or no more Tx space | |
6aa20a22 | 1442 | * available in the Tx region of the card. |
1da177e4 LT |
1443 | */ |
1444 | /* 100 ms timeout */ | |
1445 | for (time = 0; time < 10000; time++) { | |
1446 | if ((0 == hp100_inb(TX_PKT_CNT)) && | |
1447 | (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) | |
1448 | break; | |
1449 | } | |
1450 | ||
1451 | /* Disable Busmaster mode */ | |
1452 | hp100_page(HW_MAP); | |
1453 | hp100_andb(~HP100_BM_MASTER, BM); | |
1454 | } /* end of shutdown procedure for non-etr parts */ | |
1455 | ||
1456 | hp100_cascade_reset(dev, 1); | |
1457 | } | |
1458 | hp100_page(PERFORMANCE); | |
1459 | /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ | |
1460 | /* Busmaster mode should be shut down now. */ | |
1461 | } | |
1462 | ||
1463 | static int hp100_check_lan(struct net_device *dev) | |
1464 | { | |
1465 | struct hp100_private *lp = netdev_priv(dev); | |
1466 | ||
1467 | if (lp->lan_type < 0) { /* no LAN type detected yet? */ | |
1468 | hp100_stop_interface(dev); | |
1469 | if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { | |
1470 | printk("hp100: %s: no connection found - check wire\n", dev->name); | |
1471 | hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ | |
1472 | return -EIO; | |
1473 | } | |
1474 | if (lp->lan_type == HP100_LAN_100) | |
1475 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ | |
1476 | hp100_start_interface(dev); | |
1477 | } | |
1478 | return 0; | |
1479 | } | |
1480 | ||
6aa20a22 | 1481 | /* |
1da177e4 LT |
1482 | * transmit functions |
1483 | */ | |
1484 | ||
1485 | /* tx function for busmaster mode */ | |
1486 | static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev) | |
1487 | { | |
1488 | unsigned long flags; | |
1489 | int i, ok_flag; | |
1490 | int ioaddr = dev->base_addr; | |
1491 | struct hp100_private *lp = netdev_priv(dev); | |
1492 | hp100_ring_t *ringptr; | |
1493 | ||
1494 | #ifdef HP100_DEBUG_B | |
1495 | hp100_outw(0x4210, TRACE); | |
1496 | printk("hp100: %s: start_xmit_bm\n", dev->name); | |
1497 | #endif | |
1498 | ||
1499 | if (skb == NULL) { | |
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | if (skb->len <= 0) | |
1504 | return 0; | |
6aa20a22 | 1505 | |
5b057c6b HX |
1506 | if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) |
1507 | return 0; | |
1da177e4 LT |
1508 | |
1509 | /* Get Tx ring tail pointer */ | |
1510 | if (lp->txrtail->next == lp->txrhead) { | |
1511 | /* No memory. */ | |
1512 | #ifdef HP100_DEBUG | |
1513 | printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); | |
1514 | #endif | |
1515 | /* not waited long enough since last tx? */ | |
ff5688ae | 1516 | if (time_before(jiffies, dev->trans_start + HZ)) |
1da177e4 LT |
1517 | return -EAGAIN; |
1518 | ||
1519 | if (hp100_check_lan(dev)) | |
1520 | return -EIO; | |
1521 | ||
1522 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { | |
1523 | /* we have a 100Mb/s adapter but it isn't connected to hub */ | |
1524 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); | |
1525 | hp100_stop_interface(dev); | |
1526 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1527 | hp100_start_interface(dev); | |
1528 | } else { | |
1529 | spin_lock_irqsave(&lp->lock, flags); | |
1530 | hp100_ints_off(); /* Useful ? Jean II */ | |
1531 | i = hp100_sense_lan(dev); | |
1532 | hp100_ints_on(); | |
1533 | spin_unlock_irqrestore(&lp->lock, flags); | |
1534 | if (i == HP100_LAN_ERR) | |
1535 | printk("hp100: %s: link down detected\n", dev->name); | |
1536 | else if (lp->lan_type != i) { /* cable change! */ | |
1537 | /* it's very hard - all network settings must be changed!!! */ | |
1538 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); | |
1539 | lp->lan_type = i; | |
1540 | hp100_stop_interface(dev); | |
1541 | if (lp->lan_type == HP100_LAN_100) | |
1542 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1543 | hp100_start_interface(dev); | |
1544 | } else { | |
1545 | printk("hp100: %s: interface reset\n", dev->name); | |
1546 | hp100_stop_interface(dev); | |
1547 | if (lp->lan_type == HP100_LAN_100) | |
1548 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1549 | hp100_start_interface(dev); | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | dev->trans_start = jiffies; | |
1554 | return -EAGAIN; | |
1555 | } | |
1556 | ||
1557 | /* | |
1558 | * we have to turn int's off before modifying this, otherwise | |
1559 | * a tx_pdl_cleanup could occur at the same time | |
1560 | */ | |
1561 | spin_lock_irqsave(&lp->lock, flags); | |
1562 | ringptr = lp->txrtail; | |
1563 | lp->txrtail = ringptr->next; | |
1564 | ||
1565 | /* Check whether packet has minimal packet size */ | |
1566 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; | |
1567 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; | |
1568 | ||
1569 | ringptr->skb = skb; | |
1570 | ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ | |
1571 | if (lp->chip == HP100_CHIPID_SHASTA) { | |
1572 | /* TODO:Could someone who has the EISA card please check if this works? */ | |
1573 | ringptr->pdl[2] = i; | |
1574 | } else { /* Lassen */ | |
1575 | /* In the PDL, don't use the padded size but the real packet size: */ | |
1576 | ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ | |
1577 | } | |
1578 | /* Conversion to new PCI API : map skbuf data to PCI bus. | |
1579 | * Doc says it's OK for EISA as well - Jean II */ | |
1580 | ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ | |
1581 | ||
1582 | /* Hand this PDL to the card. */ | |
1583 | hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ | |
1584 | ||
1585 | lp->txrcommit++; | |
1586 | spin_unlock_irqrestore(&lp->lock, flags); | |
1587 | ||
1588 | /* Update statistics */ | |
1589 | lp->stats.tx_packets++; | |
1590 | lp->stats.tx_bytes += skb->len; | |
1591 | dev->trans_start = jiffies; | |
1592 | ||
1593 | return 0; | |
1594 | } | |
6aa20a22 | 1595 | |
1da177e4 LT |
1596 | |
1597 | /* clean_txring checks if packets have been sent by the card by reading | |
1598 | * the TX_PDL register from the performance page and comparing it to the | |
1599 | * number of commited packets. It then frees the skb's of the packets that | |
1600 | * obviously have been sent to the network. | |
1601 | * | |
6aa20a22 | 1602 | * Needs the PERFORMANCE page selected. |
1da177e4 LT |
1603 | */ |
1604 | static void hp100_clean_txring(struct net_device *dev) | |
1605 | { | |
1606 | struct hp100_private *lp = netdev_priv(dev); | |
1607 | int ioaddr = dev->base_addr; | |
1608 | int donecount; | |
1609 | ||
1610 | #ifdef HP100_DEBUG_B | |
1611 | hp100_outw(0x4211, TRACE); | |
1612 | printk("hp100: %s: clean txring\n", dev->name); | |
1613 | #endif | |
1614 | ||
1615 | /* How many PDLs have been transmitted? */ | |
1616 | donecount = (lp->txrcommit) - hp100_inb(TX_PDL); | |
1617 | ||
1618 | #ifdef HP100_DEBUG | |
1619 | if (donecount > MAX_TX_PDL) | |
1620 | printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name); | |
1621 | #endif | |
1622 | ||
1623 | for (; 0 != donecount; donecount--) { | |
1624 | #ifdef HP100_DEBUG_BM | |
1625 | printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", | |
1626 | dev->name, (u_int) lp->txrhead->skb->data, | |
1627 | lp->txrcommit, hp100_inb(TX_PDL), donecount); | |
1628 | #endif | |
1629 | /* Conversion to new PCI API : NOP */ | |
1630 | pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); | |
1631 | dev_kfree_skb_any(lp->txrhead->skb); | |
1632 | lp->txrhead->skb = (void *) NULL; | |
1633 | lp->txrhead = lp->txrhead->next; | |
1634 | lp->txrcommit--; | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | /* tx function for slave modes */ | |
1639 | static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1640 | { | |
1641 | unsigned long flags; | |
1642 | int i, ok_flag; | |
1643 | int ioaddr = dev->base_addr; | |
1644 | u_short val; | |
1645 | struct hp100_private *lp = netdev_priv(dev); | |
1646 | ||
1647 | #ifdef HP100_DEBUG_B | |
1648 | hp100_outw(0x4212, TRACE); | |
1649 | printk("hp100: %s: start_xmit\n", dev->name); | |
1650 | #endif | |
1651 | ||
1652 | if (skb == NULL) { | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | if (skb->len <= 0) | |
1657 | return 0; | |
1658 | ||
1659 | if (hp100_check_lan(dev)) | |
1660 | return -EIO; | |
1661 | ||
1662 | /* If there is not enough free memory on the card... */ | |
1663 | i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; | |
1664 | if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { | |
1665 | #ifdef HP100_DEBUG | |
1666 | printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); | |
1667 | #endif | |
1668 | /* not waited long enough since last failed tx try? */ | |
ff5688ae | 1669 | if (time_before(jiffies, dev->trans_start + HZ)) { |
1da177e4 LT |
1670 | #ifdef HP100_DEBUG |
1671 | printk("hp100: %s: trans_start timing problem\n", | |
1672 | dev->name); | |
1673 | #endif | |
1674 | return -EAGAIN; | |
1675 | } | |
1676 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { | |
1677 | /* we have a 100Mb/s adapter but it isn't connected to hub */ | |
1678 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); | |
1679 | hp100_stop_interface(dev); | |
1680 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1681 | hp100_start_interface(dev); | |
1682 | } else { | |
1683 | spin_lock_irqsave(&lp->lock, flags); | |
1684 | hp100_ints_off(); /* Useful ? Jean II */ | |
1685 | i = hp100_sense_lan(dev); | |
1686 | hp100_ints_on(); | |
1687 | spin_unlock_irqrestore(&lp->lock, flags); | |
1688 | if (i == HP100_LAN_ERR) | |
1689 | printk("hp100: %s: link down detected\n", dev->name); | |
1690 | else if (lp->lan_type != i) { /* cable change! */ | |
1691 | /* it's very hard - all network setting must be changed!!! */ | |
1692 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); | |
1693 | lp->lan_type = i; | |
1694 | hp100_stop_interface(dev); | |
1695 | if (lp->lan_type == HP100_LAN_100) | |
1696 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1697 | hp100_start_interface(dev); | |
1698 | } else { | |
1699 | printk("hp100: %s: interface reset\n", dev->name); | |
1700 | hp100_stop_interface(dev); | |
1701 | if (lp->lan_type == HP100_LAN_100) | |
1702 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); | |
1703 | hp100_start_interface(dev); | |
1704 | mdelay(1); | |
1705 | } | |
1706 | } | |
1707 | dev->trans_start = jiffies; | |
1708 | return -EAGAIN; | |
1709 | } | |
1710 | ||
1711 | for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { | |
1712 | #ifdef HP100_DEBUG_TX | |
1713 | printk("hp100: %s: start_xmit: busy\n", dev->name); | |
1714 | #endif | |
1715 | } | |
1716 | ||
1717 | spin_lock_irqsave(&lp->lock, flags); | |
1718 | hp100_ints_off(); | |
1719 | val = hp100_inw(IRQ_STATUS); | |
1720 | /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set | |
1721 | * when the current packet being transmitted on the wire is completed. */ | |
1722 | hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); | |
1723 | #ifdef HP100_DEBUG_TX | |
1724 | printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", | |
1725 | dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); | |
1726 | #endif | |
1727 | ||
1728 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; | |
1729 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; | |
1730 | ||
1731 | hp100_outw(i, DATA32); /* tell card the total packet length */ | |
1732 | hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ | |
1733 | ||
1734 | if (lp->mode == 2) { /* memory mapped */ | |
450d86df AV |
1735 | /* Note: The J2585B needs alignment to 32bits here! */ |
1736 | memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); | |
1737 | if (!ok_flag) | |
1738 | memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); | |
1da177e4 LT |
1739 | } else { /* programmed i/o */ |
1740 | outsl(ioaddr + HP100_REG_DATA32, skb->data, | |
1741 | (skb->len + 3) >> 2); | |
1742 | if (!ok_flag) | |
1743 | for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) | |
1744 | hp100_outl(0, DATA32); | |
1745 | } | |
1746 | ||
1747 | hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ | |
1748 | ||
1749 | lp->stats.tx_packets++; | |
1750 | lp->stats.tx_bytes += skb->len; | |
1751 | dev->trans_start = jiffies; | |
1752 | hp100_ints_on(); | |
1753 | spin_unlock_irqrestore(&lp->lock, flags); | |
1754 | ||
1755 | dev_kfree_skb_any(skb); | |
1756 | ||
1757 | #ifdef HP100_DEBUG_TX | |
1758 | printk("hp100: %s: start_xmit: end\n", dev->name); | |
1759 | #endif | |
1760 | ||
1761 | return 0; | |
1762 | } | |
6aa20a22 | 1763 | |
1da177e4 LT |
1764 | |
1765 | /* | |
1766 | * Receive Function (Non-Busmaster mode) | |
6aa20a22 | 1767 | * Called when an "Receive Packet" interrupt occurs, i.e. the receive |
1da177e4 LT |
1768 | * packet counter is non-zero. |
1769 | * For non-busmaster, this function does the whole work of transfering | |
1770 | * the packet to the host memory and then up to higher layers via skb | |
6aa20a22 | 1771 | * and netif_rx. |
1da177e4 LT |
1772 | */ |
1773 | ||
1774 | static void hp100_rx(struct net_device *dev) | |
1775 | { | |
1776 | int packets, pkt_len; | |
1777 | int ioaddr = dev->base_addr; | |
1778 | struct hp100_private *lp = netdev_priv(dev); | |
1779 | u_int header; | |
1780 | struct sk_buff *skb; | |
1781 | ||
1782 | #ifdef DEBUG_B | |
1783 | hp100_outw(0x4213, TRACE); | |
1784 | printk("hp100: %s: rx\n", dev->name); | |
1785 | #endif | |
1786 | ||
1787 | /* First get indication of received lan packet */ | |
1788 | /* RX_PKT_CND indicates the number of packets which have been fully */ | |
1789 | /* received onto the card but have not been fully transferred of the card */ | |
1790 | packets = hp100_inb(RX_PKT_CNT); | |
1791 | #ifdef HP100_DEBUG_RX | |
1792 | if (packets > 1) | |
1793 | printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); | |
1794 | #endif | |
1795 | ||
1796 | while (packets-- > 0) { | |
1797 | /* If ADV_NXT_PKT is still set, we have to wait until the card has */ | |
1798 | /* really advanced to the next packet. */ | |
1799 | for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { | |
1800 | #ifdef HP100_DEBUG_RX | |
1801 | printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); | |
1802 | #endif | |
1803 | } | |
1804 | ||
1805 | /* First we get the header, which contains information about the */ | |
1806 | /* actual length of the received packet. */ | |
1807 | if (lp->mode == 2) { /* memory mapped mode */ | |
450d86df | 1808 | header = readl(lp->mem_ptr_virt); |
1da177e4 LT |
1809 | } else /* programmed i/o */ |
1810 | header = hp100_inl(DATA32); | |
1811 | ||
1812 | pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; | |
1813 | ||
1814 | #ifdef HP100_DEBUG_RX | |
1815 | printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", | |
1816 | dev->name, header & HP100_PKT_LEN_MASK, | |
1817 | (header >> 16) & 0xfff8, (header >> 16) & 7); | |
1818 | #endif | |
1819 | ||
1820 | /* Now we allocate the skb and transfer the data into it. */ | |
1821 | skb = dev_alloc_skb(pkt_len+2); | |
1822 | if (skb == NULL) { /* Not enough memory->drop packet */ | |
1823 | #ifdef HP100_DEBUG | |
1824 | printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", | |
1825 | dev->name, pkt_len); | |
1826 | #endif | |
1827 | lp->stats.rx_dropped++; | |
1828 | } else { /* skb successfully allocated */ | |
1829 | ||
1830 | u_char *ptr; | |
1831 | ||
1832 | skb_reserve(skb,2); | |
1da177e4 LT |
1833 | |
1834 | /* ptr to start of the sk_buff data area */ | |
1835 | skb_put(skb, pkt_len); | |
1836 | ptr = skb->data; | |
1837 | ||
1838 | /* Now transfer the data from the card into that area */ | |
450d86df AV |
1839 | if (lp->mode == 2) |
1840 | memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); | |
1841 | else /* io mapped */ | |
1da177e4 LT |
1842 | insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); |
1843 | ||
1844 | skb->protocol = eth_type_trans(skb, dev); | |
1845 | ||
1846 | #ifdef HP100_DEBUG_RX | |
1847 | printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", | |
1848 | dev->name, ptr[0], ptr[1], ptr[2], ptr[3], | |
1849 | ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], | |
1850 | ptr[9], ptr[10], ptr[11]); | |
1851 | #endif | |
1852 | netif_rx(skb); | |
1da177e4 LT |
1853 | lp->stats.rx_packets++; |
1854 | lp->stats.rx_bytes += pkt_len; | |
1855 | } | |
1856 | ||
1857 | /* Indicate the card that we have got the packet */ | |
1858 | hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); | |
1859 | ||
1860 | switch (header & 0x00070000) { | |
1861 | case (HP100_MULTI_ADDR_HASH << 16): | |
1862 | case (HP100_MULTI_ADDR_NO_HASH << 16): | |
1863 | lp->stats.multicast++; | |
1864 | break; | |
1865 | } | |
1866 | } /* end of while(there are packets) loop */ | |
1867 | #ifdef HP100_DEBUG_RX | |
1868 | printk("hp100_rx: %s: end\n", dev->name); | |
1869 | #endif | |
1870 | } | |
1871 | ||
6aa20a22 | 1872 | /* |
1da177e4 LT |
1873 | * Receive Function for Busmaster Mode |
1874 | */ | |
1875 | static void hp100_rx_bm(struct net_device *dev) | |
1876 | { | |
1877 | int ioaddr = dev->base_addr; | |
1878 | struct hp100_private *lp = netdev_priv(dev); | |
1879 | hp100_ring_t *ptr; | |
1880 | u_int header; | |
1881 | int pkt_len; | |
1882 | ||
1883 | #ifdef HP100_DEBUG_B | |
1884 | hp100_outw(0x4214, TRACE); | |
1885 | printk("hp100: %s: rx_bm\n", dev->name); | |
1886 | #endif | |
1887 | ||
1888 | #ifdef HP100_DEBUG | |
1889 | if (0 == lp->rxrcommit) { | |
1890 | printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); | |
1891 | return; | |
1892 | } else | |
6aa20a22 | 1893 | /* RX_PKT_CNT states how many PDLs are currently formatted and available to |
1da177e4 LT |
1894 | * the cards BM engine */ |
1895 | if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { | |
1896 | printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n", | |
1897 | dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, | |
1898 | lp->rxrcommit); | |
1899 | return; | |
1900 | } | |
1901 | #endif | |
1902 | ||
1903 | while ((lp->rxrcommit > hp100_inb(RX_PDL))) { | |
1904 | /* | |
1905 | * The packet was received into the pdl pointed to by lp->rxrhead ( | |
6aa20a22 | 1906 | * the oldest pdl in the ring |
1da177e4 LT |
1907 | */ |
1908 | ||
1909 | /* First we get the header, which contains information about the */ | |
1910 | /* actual length of the received packet. */ | |
1911 | ||
1912 | ptr = lp->rxrhead; | |
1913 | ||
1914 | header = *(ptr->pdl - 1); | |
1915 | pkt_len = (header & HP100_PKT_LEN_MASK); | |
1916 | ||
1917 | /* Conversion to new PCI API : NOP */ | |
1918 | pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); | |
1919 | ||
1920 | #ifdef HP100_DEBUG_BM | |
1921 | printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", | |
1922 | dev->name, (u_int) (ptr->pdl - 1), (u_int) header, | |
1923 | pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); | |
1924 | 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", | |
1925 | dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), | |
1926 | hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), | |
1927 | (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); | |
1928 | #endif | |
1929 | ||
1930 | if ((pkt_len >= MIN_ETHER_SIZE) && | |
1931 | (pkt_len <= MAX_ETHER_SIZE)) { | |
1932 | if (ptr->skb == NULL) { | |
1933 | printk("hp100: %s: rx_bm: skb null\n", dev->name); | |
1934 | /* can happen if we only allocated room for the pdh due to memory shortage. */ | |
1935 | lp->stats.rx_dropped++; | |
1936 | } else { | |
1937 | skb_trim(ptr->skb, pkt_len); /* Shorten it */ | |
1938 | ptr->skb->protocol = | |
1939 | eth_type_trans(ptr->skb, dev); | |
1940 | ||
1941 | netif_rx(ptr->skb); /* Up and away... */ | |
1942 | ||
1da177e4 LT |
1943 | lp->stats.rx_packets++; |
1944 | lp->stats.rx_bytes += pkt_len; | |
1945 | } | |
1946 | ||
1947 | switch (header & 0x00070000) { | |
1948 | case (HP100_MULTI_ADDR_HASH << 16): | |
1949 | case (HP100_MULTI_ADDR_NO_HASH << 16): | |
1950 | lp->stats.multicast++; | |
1951 | break; | |
1952 | } | |
1953 | } else { | |
1954 | #ifdef HP100_DEBUG | |
1955 | printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); | |
1956 | #endif | |
1957 | if (ptr->skb != NULL) | |
1958 | dev_kfree_skb_any(ptr->skb); | |
1959 | lp->stats.rx_errors++; | |
1960 | } | |
1961 | ||
1962 | lp->rxrhead = lp->rxrhead->next; | |
1963 | ||
1964 | /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ | |
1965 | if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { | |
1966 | /* No space for skb, header can still be received. */ | |
1967 | #ifdef HP100_DEBUG | |
1968 | printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); | |
1969 | #endif | |
1970 | return; | |
1971 | } else { /* successfully allocated new PDL - put it in ringlist at tail. */ | |
1972 | hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); | |
1973 | lp->rxrtail = lp->rxrtail->next; | |
1974 | } | |
1975 | ||
1976 | } | |
1977 | } | |
1978 | ||
1979 | /* | |
1980 | * statistics | |
1981 | */ | |
1982 | static struct net_device_stats *hp100_get_stats(struct net_device *dev) | |
1983 | { | |
1984 | unsigned long flags; | |
1985 | int ioaddr = dev->base_addr; | |
1986 | struct hp100_private *lp = netdev_priv(dev); | |
1987 | ||
1988 | #ifdef HP100_DEBUG_B | |
1989 | hp100_outw(0x4215, TRACE); | |
1990 | #endif | |
1991 | ||
1992 | spin_lock_irqsave(&lp->lock, flags); | |
1993 | hp100_ints_off(); /* Useful ? Jean II */ | |
1994 | hp100_update_stats(dev); | |
1995 | hp100_ints_on(); | |
1996 | spin_unlock_irqrestore(&lp->lock, flags); | |
1997 | return &(lp->stats); | |
1998 | } | |
1999 | ||
2000 | static void hp100_update_stats(struct net_device *dev) | |
2001 | { | |
2002 | int ioaddr = dev->base_addr; | |
2003 | u_short val; | |
2004 | struct hp100_private *lp = netdev_priv(dev); | |
2005 | ||
2006 | #ifdef HP100_DEBUG_B | |
2007 | hp100_outw(0x4216, TRACE); | |
2008 | printk("hp100: %s: update-stats\n", dev->name); | |
2009 | #endif | |
2010 | ||
2011 | /* Note: Statistics counters clear when read. */ | |
2012 | hp100_page(MAC_CTRL); | |
2013 | val = hp100_inw(DROPPED) & 0x0fff; | |
2014 | lp->stats.rx_errors += val; | |
2015 | lp->stats.rx_over_errors += val; | |
2016 | val = hp100_inb(CRC); | |
2017 | lp->stats.rx_errors += val; | |
2018 | lp->stats.rx_crc_errors += val; | |
2019 | val = hp100_inb(ABORT); | |
2020 | lp->stats.tx_errors += val; | |
2021 | lp->stats.tx_aborted_errors += val; | |
2022 | hp100_page(PERFORMANCE); | |
2023 | } | |
2024 | ||
2025 | static void hp100_misc_interrupt(struct net_device *dev) | |
2026 | { | |
2027 | #ifdef HP100_DEBUG_B | |
2028 | int ioaddr = dev->base_addr; | |
2029 | #endif | |
2030 | struct hp100_private *lp = netdev_priv(dev); | |
2031 | ||
2032 | #ifdef HP100_DEBUG_B | |
2033 | int ioaddr = dev->base_addr; | |
2034 | hp100_outw(0x4216, TRACE); | |
2035 | printk("hp100: %s: misc_interrupt\n", dev->name); | |
2036 | #endif | |
2037 | ||
2038 | /* Note: Statistics counters clear when read. */ | |
2039 | lp->stats.rx_errors++; | |
2040 | lp->stats.tx_errors++; | |
2041 | } | |
2042 | ||
2043 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) | |
2044 | { | |
2045 | unsigned long flags; | |
2046 | ||
2047 | #ifdef HP100_DEBUG_B | |
2048 | hp100_outw(0x4217, TRACE); | |
2049 | printk("hp100: %s: clear_stats\n", dev->name); | |
2050 | #endif | |
2051 | ||
2052 | spin_lock_irqsave(&lp->lock, flags); | |
2053 | hp100_page(MAC_CTRL); /* get all statistics bytes */ | |
2054 | hp100_inw(DROPPED); | |
2055 | hp100_inb(CRC); | |
2056 | hp100_inb(ABORT); | |
2057 | hp100_page(PERFORMANCE); | |
2058 | spin_unlock_irqrestore(&lp->lock, flags); | |
2059 | } | |
6aa20a22 | 2060 | |
1da177e4 LT |
2061 | |
2062 | /* | |
2063 | * multicast setup | |
2064 | */ | |
2065 | ||
2066 | /* | |
2067 | * Set or clear the multicast filter for this adapter. | |
2068 | */ | |
2069 | ||
2070 | static void hp100_set_multicast_list(struct net_device *dev) | |
2071 | { | |
2072 | unsigned long flags; | |
2073 | int ioaddr = dev->base_addr; | |
2074 | struct hp100_private *lp = netdev_priv(dev); | |
2075 | ||
2076 | #ifdef HP100_DEBUG_B | |
2077 | hp100_outw(0x4218, TRACE); | |
2078 | printk("hp100: %s: set_mc_list\n", dev->name); | |
2079 | #endif | |
2080 | ||
2081 | spin_lock_irqsave(&lp->lock, flags); | |
2082 | hp100_ints_off(); | |
2083 | hp100_page(MAC_CTRL); | |
2084 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ | |
2085 | ||
2086 | if (dev->flags & IFF_PROMISC) { | |
2087 | lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ | |
2088 | lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ | |
2089 | memset(&lp->hash_bytes, 0xff, 8); | |
2090 | } else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { | |
2091 | lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ | |
2092 | lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ | |
2093 | #ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ | |
2094 | if (dev->flags & IFF_ALLMULTI) { | |
2095 | /* set hash filter to receive all multicast packets */ | |
2096 | memset(&lp->hash_bytes, 0xff, 8); | |
2097 | } else { | |
2098 | int i, j, idx; | |
2099 | u_char *addrs; | |
2100 | struct dev_mc_list *dmi; | |
2101 | ||
2102 | memset(&lp->hash_bytes, 0x00, 8); | |
2103 | #ifdef HP100_DEBUG | |
2104 | printk("hp100: %s: computing hash filter - mc_count = %i\n", dev->name, dev->mc_count); | |
2105 | #endif | |
2106 | for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) { | |
2107 | addrs = dmi->dmi_addr; | |
2108 | if ((*addrs & 0x01) == 0x01) { /* multicast address? */ | |
2109 | #ifdef HP100_DEBUG | |
e174961c JB |
2110 | printk("hp100: %s: multicast = %pM, ", |
2111 | dev->name, addrs); | |
1da177e4 LT |
2112 | #endif |
2113 | for (j = idx = 0; j < 6; j++) { | |
2114 | idx ^= *addrs++ & 0x3f; | |
2115 | printk(":%02x:", idx); | |
2116 | } | |
2117 | #ifdef HP100_DEBUG | |
2118 | printk("idx = %i\n", idx); | |
2119 | #endif | |
2120 | lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); | |
2121 | } | |
2122 | } | |
2123 | } | |
2124 | #else | |
2125 | memset(&lp->hash_bytes, 0xff, 8); | |
2126 | #endif | |
2127 | } else { | |
2128 | lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ | |
2129 | lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ | |
2130 | memset(&lp->hash_bytes, 0x00, 8); | |
2131 | } | |
2132 | ||
2133 | if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || | |
2134 | (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { | |
2135 | int i; | |
2136 | ||
2137 | hp100_outb(lp->mac2_mode, MAC_CFG_2); | |
2138 | hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ | |
2139 | hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ | |
2140 | ||
2141 | hp100_page(MAC_ADDRESS); | |
2142 | for (i = 0; i < 8; i++) | |
2143 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); | |
2144 | #ifdef HP100_DEBUG | |
2145 | printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", | |
2146 | dev->name, lp->mac1_mode, lp->mac2_mode, | |
2147 | lp->hash_bytes[0], lp->hash_bytes[1], | |
2148 | lp->hash_bytes[2], lp->hash_bytes[3], | |
2149 | lp->hash_bytes[4], lp->hash_bytes[5], | |
2150 | lp->hash_bytes[6], lp->hash_bytes[7]); | |
2151 | #endif | |
2152 | ||
2153 | if (lp->lan_type == HP100_LAN_100) { | |
2154 | #ifdef HP100_DEBUG | |
2155 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); | |
2156 | #endif | |
2157 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ | |
2158 | } | |
2159 | } else { | |
2160 | int i; | |
2161 | u_char old_hash_bytes[8]; | |
2162 | ||
2163 | hp100_page(MAC_ADDRESS); | |
2164 | for (i = 0; i < 8; i++) | |
2165 | old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); | |
2166 | if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { | |
2167 | for (i = 0; i < 8; i++) | |
2168 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); | |
2169 | #ifdef HP100_DEBUG | |
2170 | printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", | |
2171 | dev->name, lp->hash_bytes[0], | |
2172 | lp->hash_bytes[1], lp->hash_bytes[2], | |
2173 | lp->hash_bytes[3], lp->hash_bytes[4], | |
2174 | lp->hash_bytes[5], lp->hash_bytes[6], | |
2175 | lp->hash_bytes[7]); | |
2176 | #endif | |
2177 | ||
2178 | if (lp->lan_type == HP100_LAN_100) { | |
2179 | #ifdef HP100_DEBUG | |
2180 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); | |
2181 | #endif | |
2182 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ | |
2183 | } | |
2184 | } | |
2185 | } | |
2186 | ||
2187 | hp100_page(MAC_CTRL); | |
2188 | hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ | |
2189 | HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ | |
2190 | ||
2191 | hp100_page(PERFORMANCE); | |
2192 | hp100_ints_on(); | |
2193 | spin_unlock_irqrestore(&lp->lock, flags); | |
2194 | } | |
2195 | ||
2196 | /* | |
2197 | * hardware interrupt handling | |
2198 | */ | |
2199 | ||
7d12e780 | 2200 | static irqreturn_t hp100_interrupt(int irq, void *dev_id) |
1da177e4 LT |
2201 | { |
2202 | struct net_device *dev = (struct net_device *) dev_id; | |
2203 | struct hp100_private *lp = netdev_priv(dev); | |
2204 | ||
2205 | int ioaddr; | |
2206 | u_int val; | |
2207 | ||
2208 | if (dev == NULL) | |
2209 | return IRQ_NONE; | |
2210 | ioaddr = dev->base_addr; | |
2211 | ||
2212 | spin_lock(&lp->lock); | |
2213 | ||
2214 | hp100_ints_off(); | |
2215 | ||
2216 | #ifdef HP100_DEBUG_B | |
2217 | hp100_outw(0x4219, TRACE); | |
2218 | #endif | |
2219 | ||
2220 | /* hp100_page( PERFORMANCE ); */ | |
2221 | val = hp100_inw(IRQ_STATUS); | |
2222 | #ifdef HP100_DEBUG_IRQ | |
2223 | printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", | |
2224 | dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), | |
2225 | hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); | |
2226 | #endif | |
2227 | ||
2228 | if (val == 0) { /* might be a shared interrupt */ | |
2229 | spin_unlock(&lp->lock); | |
2230 | hp100_ints_on(); | |
2231 | return IRQ_NONE; | |
2232 | } | |
2233 | /* We're only interested in those interrupts we really enabled. */ | |
2234 | /* val &= hp100_inw( IRQ_MASK ); */ | |
2235 | ||
6aa20a22 JG |
2236 | /* |
2237 | * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL | |
2238 | * is considered executed whenever the RX_PDL data structure is no longer | |
1da177e4 LT |
2239 | * needed. |
2240 | */ | |
2241 | if (val & HP100_RX_PDL_FILL_COMPL) { | |
2242 | if (lp->mode == 1) | |
2243 | hp100_rx_bm(dev); | |
2244 | else { | |
2245 | printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); | |
2246 | } | |
2247 | } | |
2248 | ||
6aa20a22 | 2249 | /* |
1da177e4 LT |
2250 | * The RX_PACKET interrupt is set, when the receive packet counter is |
2251 | * non zero. We use this interrupt for receiving in slave mode. In | |
2252 | * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill | |
2253 | * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then | |
2254 | * we somehow have missed a rx_pdl_fill_compl interrupt. | |
2255 | */ | |
2256 | ||
2257 | if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ | |
2258 | if (lp->mode != 1) /* non busmaster */ | |
2259 | hp100_rx(dev); | |
2260 | else if (!(val & HP100_RX_PDL_FILL_COMPL)) { | |
2261 | /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */ | |
2262 | hp100_rx_bm(dev); | |
2263 | } | |
2264 | } | |
2265 | ||
2266 | /* | |
2267 | * Ack. that we have noticed the interrupt and thereby allow next one. | |
2268 | * Note that this is now done after the slave rx function, since first | |
2269 | * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt | |
2270 | * on the J2573. | |
2271 | */ | |
2272 | hp100_outw(val, IRQ_STATUS); | |
2273 | ||
2274 | /* | |
6aa20a22 JG |
2275 | * RX_ERROR is set when a packet is dropped due to no memory resources on |
2276 | * the card or when a RCV_ERR occurs. | |
2277 | * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists | |
2278 | * only in the 802.3 MAC and happens when 16 collisions occur during a TX | |
1da177e4 LT |
2279 | */ |
2280 | if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { | |
2281 | #ifdef HP100_DEBUG_IRQ | |
2282 | printk("hp100: %s: TX/RX Error IRQ\n", dev->name); | |
2283 | #endif | |
2284 | hp100_update_stats(dev); | |
2285 | if (lp->mode == 1) { | |
2286 | hp100_rxfill(dev); | |
2287 | hp100_clean_txring(dev); | |
2288 | } | |
2289 | } | |
2290 | ||
6aa20a22 JG |
2291 | /* |
2292 | * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. | |
1da177e4 LT |
2293 | */ |
2294 | if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) | |
2295 | hp100_rxfill(dev); | |
2296 | ||
6aa20a22 JG |
2297 | /* |
2298 | * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire | |
2299 | * is completed | |
1da177e4 LT |
2300 | */ |
2301 | if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) | |
2302 | hp100_clean_txring(dev); | |
2303 | ||
6aa20a22 | 2304 | /* |
1da177e4 LT |
2305 | * MISC_ERROR is set when either the LAN link goes down or a detected |
2306 | * bus error occurs. | |
2307 | */ | |
2308 | if (val & HP100_MISC_ERROR) { /* New for J2585B */ | |
2309 | #ifdef HP100_DEBUG_IRQ | |
2310 | printk | |
2311 | ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", | |
2312 | dev->name); | |
2313 | #endif | |
2314 | if (lp->mode == 1) { | |
2315 | hp100_clean_txring(dev); | |
2316 | hp100_rxfill(dev); | |
2317 | } | |
2318 | hp100_misc_interrupt(dev); | |
2319 | } | |
2320 | ||
2321 | spin_unlock(&lp->lock); | |
2322 | hp100_ints_on(); | |
2323 | return IRQ_HANDLED; | |
2324 | } | |
2325 | ||
2326 | /* | |
2327 | * some misc functions | |
2328 | */ | |
2329 | ||
2330 | static void hp100_start_interface(struct net_device *dev) | |
2331 | { | |
2332 | unsigned long flags; | |
2333 | int ioaddr = dev->base_addr; | |
2334 | struct hp100_private *lp = netdev_priv(dev); | |
2335 | ||
2336 | #ifdef HP100_DEBUG_B | |
2337 | hp100_outw(0x4220, TRACE); | |
2338 | printk("hp100: %s: hp100_start_interface\n", dev->name); | |
2339 | #endif | |
2340 | ||
2341 | spin_lock_irqsave(&lp->lock, flags); | |
2342 | ||
2343 | /* Ensure the adapter does not want to request an interrupt when */ | |
2344 | /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ | |
2345 | hp100_page(PERFORMANCE); | |
2346 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
2347 | hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ | |
2348 | hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, | |
2349 | OPTION_LSW); | |
2350 | /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ | |
2351 | hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); | |
2352 | ||
2353 | if (lp->mode == 1) { | |
2354 | /* Make sure BM bit is set... */ | |
2355 | hp100_page(HW_MAP); | |
2356 | hp100_orb(HP100_BM_MASTER, BM); | |
2357 | hp100_rxfill(dev); | |
2358 | } else if (lp->mode == 2) { | |
2359 | /* Enable memory mapping. Note: Don't do this when busmaster. */ | |
2360 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); | |
2361 | } | |
2362 | ||
2363 | hp100_page(PERFORMANCE); | |
2364 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ | |
2365 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ | |
2366 | ||
2367 | /* enable a few interrupts: */ | |
2368 | if (lp->mode == 1) { /* busmaster mode */ | |
2369 | hp100_outw(HP100_RX_PDL_FILL_COMPL | | |
2370 | HP100_RX_PDA_ZERO | HP100_RX_ERROR | | |
2371 | /* HP100_RX_PACKET | */ | |
2372 | /* HP100_RX_EARLY_INT | */ HP100_SET_HB | | |
2373 | /* HP100_TX_PDA_ZERO | */ | |
2374 | HP100_TX_COMPLETE | | |
2375 | /* HP100_MISC_ERROR | */ | |
2376 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); | |
2377 | } else { | |
2378 | hp100_outw(HP100_RX_PACKET | | |
2379 | HP100_RX_ERROR | HP100_SET_HB | | |
2380 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); | |
2381 | } | |
2382 | ||
2383 | /* Note : before hp100_set_multicast_list(), because it will play with | |
2384 | * spinlock itself... Jean II */ | |
2385 | spin_unlock_irqrestore(&lp->lock, flags); | |
2386 | ||
2387 | /* Enable MAC Tx and RX, set MAC modes, ... */ | |
2388 | hp100_set_multicast_list(dev); | |
2389 | } | |
2390 | ||
2391 | static void hp100_stop_interface(struct net_device *dev) | |
2392 | { | |
2393 | struct hp100_private *lp = netdev_priv(dev); | |
2394 | int ioaddr = dev->base_addr; | |
2395 | u_int val; | |
2396 | ||
2397 | #ifdef HP100_DEBUG_B | |
2398 | printk("hp100: %s: hp100_stop_interface\n", dev->name); | |
2399 | hp100_outw(0x4221, TRACE); | |
2400 | #endif | |
2401 | ||
2402 | if (lp->mode == 1) | |
2403 | hp100_BM_shutdown(dev); | |
2404 | else { | |
2405 | /* Note: MMAP_DIS will be reenabled by start_interface */ | |
2406 | hp100_outw(HP100_INT_EN | HP100_RESET_LB | | |
2407 | HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, | |
2408 | OPTION_LSW); | |
2409 | val = hp100_inw(OPTION_LSW); | |
2410 | ||
2411 | hp100_page(MAC_CTRL); | |
2412 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); | |
2413 | ||
2414 | if (!(val & HP100_HW_RST)) | |
2415 | return; /* If reset, imm. return ... */ | |
2416 | /* ... else: busy wait until idle */ | |
2417 | for (val = 0; val < 6000; val++) | |
2418 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { | |
2419 | hp100_page(PERFORMANCE); | |
2420 | return; | |
2421 | } | |
2422 | printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); | |
2423 | hp100_page(PERFORMANCE); | |
2424 | } | |
2425 | } | |
2426 | ||
2427 | static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) | |
2428 | { | |
2429 | int i; | |
2430 | int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; | |
2431 | ||
2432 | #ifdef HP100_DEBUG_B | |
2433 | hp100_outw(0x4222, TRACE); | |
2434 | #endif | |
2435 | ||
2436 | hp100_page(EEPROM_CTRL); | |
2437 | hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); | |
2438 | hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); | |
2439 | for (i = 0; i < 10000; i++) | |
2440 | if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) | |
2441 | return; | |
2442 | printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); | |
2443 | } | |
2444 | ||
2445 | /* Sense connection status. | |
2446 | * return values: LAN_10 - Connected to 10Mbit/s network | |
2447 | * LAN_100 - Connected to 100Mbit/s network | |
2448 | * LAN_ERR - not connected or 100Mbit/s Hub down | |
2449 | */ | |
2450 | static int hp100_sense_lan(struct net_device *dev) | |
2451 | { | |
2452 | int ioaddr = dev->base_addr; | |
2453 | u_short val_VG, val_10; | |
2454 | struct hp100_private *lp = netdev_priv(dev); | |
2455 | ||
2456 | #ifdef HP100_DEBUG_B | |
2457 | hp100_outw(0x4223, TRACE); | |
2458 | #endif | |
2459 | ||
2460 | hp100_page(MAC_CTRL); | |
2461 | val_10 = hp100_inb(10_LAN_CFG_1); | |
2462 | val_VG = hp100_inb(VG_LAN_CFG_1); | |
2463 | hp100_page(PERFORMANCE); | |
2464 | #ifdef HP100_DEBUG | |
2465 | printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", | |
2466 | dev->name, val_VG, val_10); | |
2467 | #endif | |
2468 | ||
2469 | if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ | |
2470 | return HP100_LAN_10; | |
2471 | ||
2472 | if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ | |
2473 | /* | |
2474 | * This can be overriden by dos utility, so if this has no effect, | |
2475 | * perhaps you need to download that utility from HP and set card | |
2476 | * back to "auto detect". | |
2477 | */ | |
2478 | val_10 |= HP100_AUI_SEL | HP100_LOW_TH; | |
2479 | hp100_page(MAC_CTRL); | |
2480 | hp100_outb(val_10, 10_LAN_CFG_1); | |
2481 | hp100_page(PERFORMANCE); | |
2482 | return HP100_LAN_COAX; | |
2483 | } | |
2484 | ||
2485 | /* Those cards don't have a 100 Mbit connector */ | |
2486 | if ( !strcmp(lp->id, "HWP1920") || | |
6aa20a22 JG |
2487 | (lp->pci_dev && |
2488 | lp->pci_dev->vendor == PCI_VENDOR_ID && | |
1da177e4 LT |
2489 | (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || |
2490 | lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) | |
2491 | return HP100_LAN_ERR; | |
6aa20a22 | 2492 | |
1da177e4 LT |
2493 | if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ |
2494 | return HP100_LAN_100; | |
2495 | return HP100_LAN_ERR; | |
2496 | } | |
2497 | ||
2498 | static int hp100_down_vg_link(struct net_device *dev) | |
2499 | { | |
2500 | struct hp100_private *lp = netdev_priv(dev); | |
2501 | int ioaddr = dev->base_addr; | |
2502 | unsigned long time; | |
2503 | long savelan, newlan; | |
2504 | ||
2505 | #ifdef HP100_DEBUG_B | |
2506 | hp100_outw(0x4224, TRACE); | |
2507 | printk("hp100: %s: down_vg_link\n", dev->name); | |
2508 | #endif | |
2509 | ||
2510 | hp100_page(MAC_CTRL); | |
2511 | time = jiffies + (HZ / 4); | |
2512 | do { | |
2513 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) | |
2514 | break; | |
3173c890 NA |
2515 | if (!in_interrupt()) |
2516 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2517 | } while (time_after(time, jiffies)); |
2518 | ||
2519 | if (time_after_eq(jiffies, time)) /* no signal->no logout */ | |
2520 | return 0; | |
2521 | ||
2522 | /* Drop the VG Link by clearing the link up cmd and load addr. */ | |
2523 | ||
2524 | hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); | |
2525 | hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); | |
2526 | ||
2527 | /* Conditionally stall for >250ms on Link-Up Status (to go down) */ | |
2528 | time = jiffies + (HZ / 2); | |
2529 | do { | |
2530 | if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) | |
2531 | break; | |
3173c890 NA |
2532 | if (!in_interrupt()) |
2533 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2534 | } while (time_after(time, jiffies)); |
2535 | ||
2536 | #ifdef HP100_DEBUG | |
2537 | if (time_after_eq(jiffies, time)) | |
2538 | printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); | |
2539 | #endif | |
2540 | ||
2541 | /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ | |
2542 | /* logout under traffic (even though all the status bits are cleared), */ | |
2543 | /* do this workaround to get the Rev 1 MAC in its idle state */ | |
2544 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2545 | /* Reset VG MAC to insure it leaves the logoff state even if */ | |
2546 | /* the Hub is still emitting tones */ | |
2547 | hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); | |
2548 | udelay(1500); /* wait for >1ms */ | |
2549 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ | |
2550 | udelay(1500); | |
2551 | } | |
2552 | ||
2553 | /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ | |
2554 | /* to get the VG mac to full reset. This is not req.d with later chips */ | |
2555 | /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ | |
2556 | /* selected again! This will be left to the connect hub function to */ | |
2557 | /* perform if desired. */ | |
2558 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2559 | /* Have to write to 10 and 100VG control registers simultaneously */ | |
2560 | savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ | |
2561 | newlan &= ~(HP100_VG_SEL << 16); | |
2562 | newlan |= (HP100_DOT3_MAC) << 8; | |
2563 | hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ | |
2564 | hp100_outl(newlan, 10_LAN_CFG_1); | |
2565 | ||
2566 | /* Conditionally stall for 5sec on VG selected. */ | |
2567 | time = jiffies + (HZ * 5); | |
2568 | do { | |
2569 | if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) | |
2570 | break; | |
3173c890 NA |
2571 | if (!in_interrupt()) |
2572 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2573 | } while (time_after(time, jiffies)); |
2574 | ||
2575 | hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ | |
2576 | hp100_outl(savelan, 10_LAN_CFG_1); | |
2577 | } | |
2578 | ||
2579 | time = jiffies + (3 * HZ); /* Timeout 3s */ | |
2580 | do { | |
2581 | if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) | |
2582 | break; | |
3173c890 NA |
2583 | if (!in_interrupt()) |
2584 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2585 | } while (time_after(time, jiffies)); |
2586 | ||
2587 | if (time_before_eq(time, jiffies)) { | |
2588 | #ifdef HP100_DEBUG | |
2589 | printk("hp100: %s: down_vg_link: timeout\n", dev->name); | |
2590 | #endif | |
2591 | return -EIO; | |
2592 | } | |
2593 | ||
2594 | time = jiffies + (2 * HZ); /* This seems to take a while.... */ | |
2595 | do { | |
3173c890 NA |
2596 | if (!in_interrupt()) |
2597 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2598 | } while (time_after(time, jiffies)); |
2599 | ||
2600 | return 0; | |
2601 | } | |
2602 | ||
2603 | static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) | |
2604 | { | |
2605 | int ioaddr = dev->base_addr; | |
2606 | struct hp100_private *lp = netdev_priv(dev); | |
2607 | u_short val = 0; | |
2608 | unsigned long time; | |
2609 | int startst; | |
2610 | ||
2611 | #ifdef HP100_DEBUG_B | |
2612 | hp100_outw(0x4225, TRACE); | |
2613 | printk("hp100: %s: login_to_vg_hub\n", dev->name); | |
2614 | #endif | |
2615 | ||
2616 | /* Initiate a login sequence iff VG MAC is enabled and either Load Address | |
2617 | * bit is zero or the force relogin flag is set (e.g. due to MAC address or | |
2618 | * promiscuous mode change) | |
2619 | */ | |
2620 | hp100_page(MAC_CTRL); | |
2621 | startst = hp100_inb(VG_LAN_CFG_1); | |
2622 | if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { | |
2623 | #ifdef HP100_DEBUG_TRAINING | |
2624 | printk("hp100: %s: Start training\n", dev->name); | |
2625 | #endif | |
2626 | ||
2627 | /* Ensure VG Reset bit is 1 (i.e., do not reset) */ | |
2628 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); | |
2629 | ||
2630 | /* If Lassen AND auto-select-mode AND VG tones were sensed on */ | |
2631 | /* entry then temporarily put them into force 100Mbit mode */ | |
2632 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) | |
2633 | hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); | |
2634 | ||
2635 | /* Drop the VG link by zeroing Link Up Command and Load Address */ | |
2636 | hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); | |
2637 | ||
2638 | #ifdef HP100_DEBUG_TRAINING | |
2639 | printk("hp100: %s: Bring down the link\n", dev->name); | |
2640 | #endif | |
2641 | ||
2642 | /* Wait for link to drop */ | |
2643 | time = jiffies + (HZ / 10); | |
2644 | do { | |
2645 | if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) | |
2646 | break; | |
3173c890 NA |
2647 | if (!in_interrupt()) |
2648 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2649 | } while (time_after(time, jiffies)); |
2650 | ||
2651 | /* Start an addressed training and optionally request promiscuous port */ | |
2652 | if ((dev->flags) & IFF_PROMISC) { | |
2653 | hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); | |
2654 | if (lp->chip == HP100_CHIPID_LASSEN) | |
2655 | hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); | |
2656 | } else { | |
2657 | hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); | |
2658 | /* For ETR parts we need to reset the prom. bit in the training | |
2659 | * register, otherwise promiscious mode won't be disabled. | |
2660 | */ | |
2661 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2662 | hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); | |
2663 | } | |
2664 | } | |
2665 | ||
2666 | /* With ETR parts, frame format request bits can be set. */ | |
2667 | if (lp->chip == HP100_CHIPID_LASSEN) | |
2668 | hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); | |
2669 | ||
2670 | hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); | |
2671 | ||
2672 | /* Note: Next wait could be omitted for Hood and earlier chips under */ | |
2673 | /* certain circumstances */ | |
2674 | /* TODO: check if hood/earlier and skip wait. */ | |
2675 | ||
2676 | /* Wait for either short timeout for VG tones or long for login */ | |
2677 | /* Wait for the card hardware to signalise link cable status ok... */ | |
2678 | hp100_page(MAC_CTRL); | |
2679 | time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ | |
2680 | do { | |
2681 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) | |
2682 | break; | |
3173c890 NA |
2683 | if (!in_interrupt()) |
2684 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2685 | } while (time_before(jiffies, time)); |
2686 | ||
2687 | if (time_after_eq(jiffies, time)) { | |
2688 | #ifdef HP100_DEBUG_TRAINING | |
2689 | printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); | |
2690 | #endif | |
2691 | } else { | |
2692 | #ifdef HP100_DEBUG_TRAINING | |
2693 | printk | |
2694 | ("hp100: %s: HUB tones detected. Trying to train.\n", | |
2695 | dev->name); | |
2696 | #endif | |
2697 | ||
2698 | time = jiffies + (2 * HZ); /* again a timeout */ | |
2699 | do { | |
2700 | val = hp100_inb(VG_LAN_CFG_1); | |
2701 | if ((val & (HP100_LINK_UP_ST))) { | |
2702 | #ifdef HP100_DEBUG_TRAINING | |
2703 | printk("hp100: %s: Passed training.\n", dev->name); | |
2704 | #endif | |
2705 | break; | |
2706 | } | |
3173c890 NA |
2707 | if (!in_interrupt()) |
2708 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
2709 | } while (time_after(time, jiffies)); |
2710 | } | |
2711 | ||
2712 | /* If LINK_UP_ST is set, then we are logged into the hub. */ | |
2713 | if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { | |
2714 | #ifdef HP100_DEBUG_TRAINING | |
2715 | printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); | |
2716 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2717 | val = hp100_inw(TRAIN_ALLOW); | |
2718 | printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", | |
2719 | dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); | |
2720 | printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); | |
2721 | printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); | |
2722 | } | |
2723 | #endif | |
2724 | } else { | |
2725 | /* If LINK_UP_ST is not set, login was not successful */ | |
2726 | printk("hp100: %s: Problem logging into the HUB.\n", dev->name); | |
2727 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2728 | /* Check allowed Register to find out why there is a problem. */ | |
2729 | val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ | |
2730 | #ifdef HP100_DEBUG_TRAINING | |
2731 | printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); | |
2732 | #endif | |
2733 | if (val & HP100_MALLOW_ACCDENIED) | |
2734 | printk("hp100: %s: HUB access denied.\n", dev->name); | |
2735 | if (val & HP100_MALLOW_CONFIGURE) | |
2736 | printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); | |
2737 | if (val & HP100_MALLOW_DUPADDR) | |
2738 | printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); | |
2739 | } | |
2740 | } | |
2741 | ||
2742 | /* If we have put the chip into forced 100 Mbit mode earlier, go back */ | |
2743 | /* to auto-select mode */ | |
2744 | ||
2745 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { | |
2746 | hp100_page(MAC_CTRL); | |
2747 | hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); | |
2748 | } | |
2749 | ||
2750 | val = hp100_inb(VG_LAN_CFG_1); | |
2751 | ||
2752 | /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ | |
2753 | hp100_page(PERFORMANCE); | |
2754 | hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); | |
2755 | ||
2756 | if (val & HP100_LINK_UP_ST) | |
2757 | return (0); /* login was ok */ | |
2758 | else { | |
2759 | printk("hp100: %s: Training failed.\n", dev->name); | |
2760 | hp100_down_vg_link(dev); | |
2761 | return -EIO; | |
2762 | } | |
2763 | } | |
2764 | /* no forced relogin & already link there->no training. */ | |
2765 | return -EIO; | |
2766 | } | |
2767 | ||
2768 | static void hp100_cascade_reset(struct net_device *dev, u_short enable) | |
2769 | { | |
2770 | int ioaddr = dev->base_addr; | |
2771 | struct hp100_private *lp = netdev_priv(dev); | |
2772 | ||
2773 | #ifdef HP100_DEBUG_B | |
2774 | hp100_outw(0x4226, TRACE); | |
2775 | printk("hp100: %s: cascade_reset\n", dev->name); | |
2776 | #endif | |
2777 | ||
2778 | if (enable) { | |
2779 | hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); | |
2780 | if (lp->chip == HP100_CHIPID_LASSEN) { | |
2781 | /* Lassen requires a PCI transmit fifo reset */ | |
2782 | hp100_page(HW_MAP); | |
2783 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); | |
2784 | hp100_orb(HP100_PCI_RESET, PCICTRL2); | |
2785 | /* Wait for min. 300 ns */ | |
2786 | /* we can't use jiffies here, because it may be */ | |
2787 | /* that we have disabled the timer... */ | |
2788 | udelay(400); | |
2789 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); | |
2790 | hp100_page(PERFORMANCE); | |
2791 | } | |
2792 | } else { /* bring out of reset */ | |
2793 | hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); | |
2794 | udelay(400); | |
2795 | hp100_page(PERFORMANCE); | |
2796 | } | |
2797 | } | |
2798 | ||
2799 | #ifdef HP100_DEBUG | |
2800 | void hp100_RegisterDump(struct net_device *dev) | |
2801 | { | |
2802 | int ioaddr = dev->base_addr; | |
2803 | int Page; | |
2804 | int Register; | |
2805 | ||
2806 | /* Dump common registers */ | |
2807 | printk("hp100: %s: Cascade Register Dump\n", dev->name); | |
2808 | printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); | |
2809 | printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); | |
2810 | printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); | |
2811 | printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); | |
2812 | ||
2813 | /* Dump paged registers */ | |
2814 | for (Page = 0; Page < 8; Page++) { | |
2815 | /* Dump registers */ | |
2816 | printk("page: 0x%.2x\n", Page); | |
2817 | outw(Page, ioaddr + 0x02); | |
2818 | for (Register = 0x8; Register < 0x22; Register += 2) { | |
2819 | /* Display Register contents except data port */ | |
2820 | if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { | |
2821 | printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); | |
2822 | } | |
2823 | } | |
2824 | } | |
2825 | hp100_page(PERFORMANCE); | |
2826 | } | |
2827 | #endif | |
2828 | ||
2829 | ||
2830 | static void cleanup_dev(struct net_device *d) | |
2831 | { | |
2832 | struct hp100_private *p = netdev_priv(d); | |
2833 | ||
2834 | unregister_netdev(d); | |
2835 | release_region(d->base_addr, HP100_REGION_SIZE); | |
2836 | ||
2837 | if (p->mode == 1) /* busmaster */ | |
6aa20a22 JG |
2838 | pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, |
2839 | p->page_vaddr_algn, | |
1da177e4 LT |
2840 | virt_to_whatever(d, p->page_vaddr_algn)); |
2841 | if (p->mem_ptr_virt) | |
2842 | iounmap(p->mem_ptr_virt); | |
2843 | ||
2844 | free_netdev(d); | |
2845 | } | |
2846 | ||
2847 | #ifdef CONFIG_EISA | |
2848 | static int __init hp100_eisa_probe (struct device *gendev) | |
2849 | { | |
2850 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2851 | struct eisa_device *edev = to_eisa_device(gendev); | |
2852 | int err; | |
2853 | ||
2854 | if (!dev) | |
2855 | return -ENOMEM; | |
2856 | ||
1da177e4 LT |
2857 | SET_NETDEV_DEV(dev, &edev->dev); |
2858 | ||
2859 | err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); | |
2860 | if (err) | |
2861 | goto out1; | |
2862 | ||
1da177e4 | 2863 | #ifdef HP100_DEBUG |
6aa20a22 | 2864 | printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, |
1da177e4 LT |
2865 | dev->base_addr); |
2866 | #endif | |
2867 | gendev->driver_data = dev; | |
2868 | return 0; | |
1da177e4 LT |
2869 | out1: |
2870 | free_netdev(dev); | |
2871 | return err; | |
2872 | } | |
2873 | ||
2874 | static int __devexit hp100_eisa_remove (struct device *gendev) | |
2875 | { | |
2876 | struct net_device *dev = gendev->driver_data; | |
2877 | cleanup_dev(dev); | |
2878 | return 0; | |
2879 | } | |
2880 | ||
2881 | static struct eisa_driver hp100_eisa_driver = { | |
2882 | .id_table = hp100_eisa_tbl, | |
2883 | .driver = { | |
2884 | .name = "hp100", | |
2885 | .probe = hp100_eisa_probe, | |
2886 | .remove = __devexit_p (hp100_eisa_remove), | |
2887 | } | |
2888 | }; | |
2889 | #endif | |
2890 | ||
2891 | #ifdef CONFIG_PCI | |
2892 | static int __devinit hp100_pci_probe (struct pci_dev *pdev, | |
2893 | const struct pci_device_id *ent) | |
2894 | { | |
2895 | struct net_device *dev; | |
2896 | int ioaddr; | |
2897 | u_short pci_command; | |
2898 | int err; | |
2899 | ||
2900 | if (pci_enable_device(pdev)) | |
2901 | return -ENODEV; | |
2902 | ||
2903 | dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2904 | if (!dev) { | |
2905 | err = -ENOMEM; | |
2906 | goto out0; | |
2907 | } | |
2908 | ||
1da177e4 LT |
2909 | SET_NETDEV_DEV(dev, &pdev->dev); |
2910 | ||
2911 | pci_read_config_word(pdev, PCI_COMMAND, &pci_command); | |
2912 | if (!(pci_command & PCI_COMMAND_IO)) { | |
2913 | #ifdef HP100_DEBUG | |
2914 | printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); | |
2915 | #endif | |
2916 | pci_command |= PCI_COMMAND_IO; | |
2917 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); | |
2918 | } | |
2919 | ||
2920 | if (!(pci_command & PCI_COMMAND_MASTER)) { | |
2921 | #ifdef HP100_DEBUG | |
2922 | printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); | |
2923 | #endif | |
2924 | pci_command |= PCI_COMMAND_MASTER; | |
2925 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); | |
2926 | } | |
6aa20a22 | 2927 | |
1da177e4 LT |
2928 | ioaddr = pci_resource_start(pdev, 0); |
2929 | err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); | |
6aa20a22 | 2930 | if (err) |
1da177e4 | 2931 | goto out1; |
6aa20a22 | 2932 | |
1da177e4 LT |
2933 | #ifdef HP100_DEBUG |
2934 | printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); | |
2935 | #endif | |
2936 | pci_set_drvdata(pdev, dev); | |
2937 | return 0; | |
1da177e4 LT |
2938 | out1: |
2939 | free_netdev(dev); | |
2940 | out0: | |
2941 | pci_disable_device(pdev); | |
2942 | return err; | |
2943 | } | |
2944 | ||
2945 | static void __devexit hp100_pci_remove (struct pci_dev *pdev) | |
2946 | { | |
2947 | struct net_device *dev = pci_get_drvdata(pdev); | |
2948 | ||
2949 | cleanup_dev(dev); | |
2950 | pci_disable_device(pdev); | |
2951 | } | |
2952 | ||
2953 | ||
2954 | static struct pci_driver hp100_pci_driver = { | |
2955 | .name = "hp100", | |
2956 | .id_table = hp100_pci_tbl, | |
2957 | .probe = hp100_pci_probe, | |
2958 | .remove = __devexit_p(hp100_pci_remove), | |
2959 | }; | |
2960 | #endif | |
2961 | ||
2962 | /* | |
2963 | * module section | |
2964 | */ | |
2965 | ||
2966 | MODULE_LICENSE("GPL"); | |
c1017a4c | 2967 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, " |
1da177e4 LT |
2968 | "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); |
2969 | MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); | |
2970 | ||
2971 | /* | |
2972 | * Note: to register three isa devices, use: | |
2973 | * option hp100 hp100_port=0,0,0 | |
2974 | * to register one card at io 0x280 as eth239, use: | |
2975 | * option hp100 hp100_port=0x280 | |
2976 | */ | |
2977 | #if defined(MODULE) && defined(CONFIG_ISA) | |
2978 | #define HP100_DEVICES 5 | |
2979 | /* Parameters set by insmod */ | |
2980 | static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; | |
2981 | module_param_array(hp100_port, int, NULL, 0); | |
2982 | ||
2983 | /* List of devices */ | |
2984 | static struct net_device *hp100_devlist[HP100_DEVICES]; | |
2985 | ||
2986 | static int __init hp100_isa_init(void) | |
2987 | { | |
2988 | struct net_device *dev; | |
2989 | int i, err, cards = 0; | |
2990 | ||
2991 | /* Don't autoprobe ISA bus */ | |
2992 | if (hp100_port[0] == 0) | |
2993 | return -ENODEV; | |
2994 | ||
2995 | /* Loop on all possible base addresses */ | |
2996 | for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { | |
2997 | dev = alloc_etherdev(sizeof(struct hp100_private)); | |
2998 | if (!dev) { | |
2999 | printk(KERN_WARNING "hp100: no memory for network device\n"); | |
3000 | while (cards > 0) | |
3001 | cleanup_dev(hp100_devlist[--cards]); | |
3002 | ||
3003 | return -ENOMEM; | |
3004 | } | |
1da177e4 LT |
3005 | |
3006 | err = hp100_isa_probe(dev, hp100_port[i]); | |
b1fc5505 | 3007 | if (!err) |
3008 | hp100_devlist[cards++] = dev; | |
3009 | else | |
1da177e4 LT |
3010 | free_netdev(dev); |
3011 | } | |
3012 | ||
3013 | return cards > 0 ? 0 : -ENODEV; | |
3014 | } | |
3015 | ||
c79d9c9e | 3016 | static void hp100_isa_cleanup(void) |
1da177e4 LT |
3017 | { |
3018 | int i; | |
3019 | ||
3020 | for (i = 0; i < HP100_DEVICES; i++) { | |
3021 | struct net_device *dev = hp100_devlist[i]; | |
3022 | if (dev) | |
3023 | cleanup_dev(dev); | |
3024 | } | |
3025 | } | |
3026 | #else | |
3027 | #define hp100_isa_init() (0) | |
3028 | #define hp100_isa_cleanup() do { } while(0) | |
3029 | #endif | |
3030 | ||
3031 | static int __init hp100_module_init(void) | |
3032 | { | |
3033 | int err; | |
3034 | ||
3035 | err = hp100_isa_init(); | |
3036 | if (err && err != -ENODEV) | |
3037 | goto out; | |
3038 | #ifdef CONFIG_EISA | |
3039 | err = eisa_driver_register(&hp100_eisa_driver); | |
6aa20a22 | 3040 | if (err && err != -ENODEV) |
1da177e4 LT |
3041 | goto out2; |
3042 | #endif | |
3043 | #ifdef CONFIG_PCI | |
7e3e8b05 | 3044 | err = pci_register_driver(&hp100_pci_driver); |
6aa20a22 | 3045 | if (err && err != -ENODEV) |
1da177e4 LT |
3046 | goto out3; |
3047 | #endif | |
3048 | out: | |
3049 | return err; | |
3050 | out3: | |
3051 | #ifdef CONFIG_EISA | |
3052 | eisa_driver_unregister (&hp100_eisa_driver); | |
3053 | out2: | |
3054 | #endif | |
3055 | hp100_isa_cleanup(); | |
3056 | goto out; | |
3057 | } | |
3058 | ||
3059 | ||
3060 | static void __exit hp100_module_exit(void) | |
3061 | { | |
3062 | hp100_isa_cleanup(); | |
3063 | #ifdef CONFIG_EISA | |
3064 | eisa_driver_unregister (&hp100_eisa_driver); | |
3065 | #endif | |
3066 | #ifdef CONFIG_PCI | |
3067 | pci_unregister_driver (&hp100_pci_driver); | |
3068 | #endif | |
3069 | } | |
3070 | ||
3071 | module_init(hp100_module_init) | |
3072 | module_exit(hp100_module_exit) |