hp100.c 89 KB

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  1. /*
  2. ** hp100.c
  3. ** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters
  4. **
  5. ** $Id: hp100.c,v 1.1.1.1 2007/06/12 07:27:10 eyryu Exp $
  6. **
  7. ** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz>
  8. ** Extended for new busmaster capable chipsets by
  9. ** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>
  10. **
  11. ** Maintained by: Jaroslav Kysela <perex@suse.cz>
  12. **
  13. ** This driver has only been tested with
  14. ** -- HP J2585B 10/100 Mbit/s PCI Busmaster
  15. ** -- HP J2585A 10/100 Mbit/s PCI
  16. ** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC
  17. ** -- HP J2973A 10 Mbit/s PCI 10base-T
  18. ** -- HP J2573 10/100 ISA
  19. ** -- Compex ReadyLink ENET100-VG4 10/100 Mbit/s PCI / EISA
  20. ** -- Compex FreedomLine 100/VG 10/100 Mbit/s ISA / EISA / PCI
  21. **
  22. ** but it should also work with the other CASCADE based adapters.
  23. **
  24. ** TODO:
  25. ** - J2573 seems to hang sometimes when in shared memory mode.
  26. ** - Mode for Priority TX
  27. ** - Check PCI registers, performance might be improved?
  28. ** - To reduce interrupt load in busmaster, one could switch off
  29. ** the interrupts that are used to refill the queues whenever the
  30. ** queues are filled up to more than a certain threshold.
  31. ** - some updates for EISA version of card
  32. **
  33. **
  34. ** This code is free software; you can redistribute it and/or modify
  35. ** it under the terms of the GNU General Public License as published by
  36. ** the Free Software Foundation; either version 2 of the License, or
  37. ** (at your option) any later version.
  38. **
  39. ** This code is distributed in the hope that it will be useful,
  40. ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  41. ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  42. ** GNU General Public License for more details.
  43. **
  44. ** You should have received a copy of the GNU General Public License
  45. ** along with this program; if not, write to the Free Software
  46. ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  47. **
  48. ** 1.57c -> 1.58
  49. ** - used indent to change coding-style
  50. ** - added KTI DP-200 EISA ID
  51. ** - ioremap is also used for low (<1MB) memory (multi-architecture support)
  52. **
  53. ** 1.57b -> 1.57c - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  54. ** - release resources on failure in init_module
  55. **
  56. ** 1.57 -> 1.57b - Jean II
  57. ** - fix spinlocks, SMP is now working !
  58. **
  59. ** 1.56 -> 1.57
  60. ** - updates for new PCI interface for 2.1 kernels
  61. **
  62. ** 1.55 -> 1.56
  63. ** - removed printk in misc. interrupt and update statistics to allow
  64. ** monitoring of card status
  65. ** - timing changes in xmit routines, relogin to 100VG hub added when
  66. ** driver does reset
  67. ** - included fix for Compex FreedomLine PCI adapter
  68. **
  69. ** 1.54 -> 1.55
  70. ** - fixed bad initialization in init_module
  71. ** - added Compex FreedomLine adapter
  72. ** - some fixes in card initialization
  73. **
  74. ** 1.53 -> 1.54
  75. ** - added hardware multicast filter support (doesn't work)
  76. ** - little changes in hp100_sense_lan routine
  77. ** - added support for Coax and AUI (J2970)
  78. ** - fix for multiple cards and hp100_mode parameter (insmod)
  79. ** - fix for shared IRQ
  80. **
  81. ** 1.52 -> 1.53
  82. ** - fixed bug in multicast support
  83. **
  84. */
  85. #define HP100_DEFAULT_PRIORITY_TX 0
  86. #undef HP100_DEBUG
  87. #undef HP100_DEBUG_B /* Trace */
  88. #undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */
  89. #undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */
  90. #undef HP100_DEBUG_TX
  91. #undef HP100_DEBUG_IRQ
  92. #undef HP100_DEBUG_RX
  93. #undef HP100_MULTICAST_FILTER /* Need to be debugged... */
  94. #include <linux/module.h>
  95. #include <linux/kernel.h>
  96. #include <linux/string.h>
  97. #include <linux/errno.h>
  98. #include <linux/ioport.h>
  99. #include <linux/slab.h>
  100. #include <linux/interrupt.h>
  101. #include <linux/eisa.h>
  102. #include <linux/pci.h>
  103. #include <linux/dma-mapping.h>
  104. #include <linux/spinlock.h>
  105. #include <linux/netdevice.h>
  106. #include <linux/etherdevice.h>
  107. #include <linux/skbuff.h>
  108. #include <linux/types.h>
  109. #include <linux/delay.h>
  110. #include <linux/init.h>
  111. #include <linux/bitops.h>
  112. #include <linux/jiffies.h>
  113. #include <asm/io.h>
  114. #include "hp100.h"
  115. /*
  116. * defines
  117. */
  118. #define HP100_BUS_ISA 0
  119. #define HP100_BUS_EISA 1
  120. #define HP100_BUS_PCI 2
  121. #define HP100_REGION_SIZE 0x20 /* for ioports */
  122. #define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */
  123. #define HP100_MAX_PACKET_SIZE (1536+4)
  124. #define HP100_MIN_PACKET_SIZE 60
  125. #ifndef HP100_DEFAULT_RX_RATIO
  126. /* default - 75% onboard memory on the card are used for RX packets */
  127. #define HP100_DEFAULT_RX_RATIO 75
  128. #endif
  129. #ifndef HP100_DEFAULT_PRIORITY_TX
  130. /* default - don't enable transmit outgoing packets as priority */
  131. #define HP100_DEFAULT_PRIORITY_TX 0
  132. #endif
  133. /*
  134. * structures
  135. */
  136. struct hp100_private {
  137. spinlock_t lock;
  138. char id[HP100_SIG_LEN];
  139. u_short chip;
  140. u_short soft_model;
  141. u_int memory_size;
  142. u_int virt_memory_size;
  143. u_short rx_ratio; /* 1 - 99 */
  144. u_short priority_tx; /* != 0 - priority tx */
  145. u_short mode; /* PIO, Shared Mem or Busmaster */
  146. u_char bus;
  147. struct pci_dev *pci_dev;
  148. short mem_mapped; /* memory mapped access */
  149. void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */
  150. unsigned long mem_ptr_phys; /* physical memory mapped area */
  151. short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */
  152. int hub_status; /* was login to hub successful? */
  153. u_char mac1_mode;
  154. u_char mac2_mode;
  155. u_char hash_bytes[8];
  156. struct net_device_stats stats;
  157. /* Rings for busmaster mode: */
  158. hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */
  159. hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */
  160. hp100_ring_t *txrhead; /* Head (oldest) index into txring */
  161. hp100_ring_t *txrtail; /* Tail (newest) index into txring */
  162. hp100_ring_t rxring[MAX_RX_PDL];
  163. hp100_ring_t txring[MAX_TX_PDL];
  164. u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */
  165. u_long whatever_offset; /* Offset to bus/phys/dma address */
  166. int rxrcommit; /* # Rx PDLs commited to adapter */
  167. int txrcommit; /* # Tx PDLs commited to adapter */
  168. };
  169. /*
  170. * variables
  171. */
  172. #ifdef CONFIG_ISA
  173. static const char *hp100_isa_tbl[] = {
  174. "HWPF150", /* HP J2573 rev A */
  175. "HWP1950", /* HP J2573 */
  176. };
  177. #endif
  178. #ifdef CONFIG_EISA
  179. static struct eisa_device_id hp100_eisa_tbl[] = {
  180. { "HWPF180" }, /* HP J2577 rev A */
  181. { "HWP1920" }, /* HP 27248B */
  182. { "HWP1940" }, /* HP J2577 */
  183. { "HWP1990" }, /* HP J2577 */
  184. { "CPX0301" }, /* ReadyLink ENET100-VG4 */
  185. { "CPX0401" }, /* FreedomLine 100/VG */
  186. { "" } /* Mandatory final entry ! */
  187. };
  188. MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl);
  189. #endif
  190. #ifdef CONFIG_PCI
  191. static struct pci_device_id hp100_pci_tbl[] = {
  192. {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,},
  193. {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,},
  194. {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,},
  195. {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,},
  196. {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,},
  197. {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,},
  198. /* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */
  199. {} /* Terminating entry */
  200. };
  201. MODULE_DEVICE_TABLE(pci, hp100_pci_tbl);
  202. #endif
  203. static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
  204. static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
  205. static int hp100_mode = 1;
  206. module_param(hp100_rx_ratio, int, 0);
  207. module_param(hp100_priority_tx, int, 0);
  208. module_param(hp100_mode, int, 0);
  209. /*
  210. * prototypes
  211. */
  212. static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus,
  213. struct pci_dev *pci_dev);
  214. static int hp100_open(struct net_device *dev);
  215. static int hp100_close(struct net_device *dev);
  216. static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev);
  217. static int hp100_start_xmit_bm(struct sk_buff *skb,
  218. struct net_device *dev);
  219. static void hp100_rx(struct net_device *dev);
  220. static struct net_device_stats *hp100_get_stats(struct net_device *dev);
  221. static void hp100_misc_interrupt(struct net_device *dev);
  222. static void hp100_update_stats(struct net_device *dev);
  223. static void hp100_clear_stats(struct hp100_private *lp, int ioaddr);
  224. static void hp100_set_multicast_list(struct net_device *dev);
  225. static irqreturn_t hp100_interrupt(int irq, void *dev_id);
  226. static void hp100_start_interface(struct net_device *dev);
  227. static void hp100_stop_interface(struct net_device *dev);
  228. static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr);
  229. static int hp100_sense_lan(struct net_device *dev);
  230. static int hp100_login_to_vg_hub(struct net_device *dev,
  231. u_short force_relogin);
  232. static int hp100_down_vg_link(struct net_device *dev);
  233. static void hp100_cascade_reset(struct net_device *dev, u_short enable);
  234. static void hp100_BM_shutdown(struct net_device *dev);
  235. static void hp100_mmuinit(struct net_device *dev);
  236. static void hp100_init_pdls(struct net_device *dev);
  237. static int hp100_init_rxpdl(struct net_device *dev,
  238. register hp100_ring_t * ringptr,
  239. register u_int * pdlptr);
  240. static int hp100_init_txpdl(struct net_device *dev,
  241. register hp100_ring_t * ringptr,
  242. register u_int * pdlptr);
  243. static void hp100_rxfill(struct net_device *dev);
  244. static void hp100_hwinit(struct net_device *dev);
  245. static void hp100_clean_txring(struct net_device *dev);
  246. #ifdef HP100_DEBUG
  247. static void hp100_RegisterDump(struct net_device *dev);
  248. #endif
  249. /* Conversion to new PCI API :
  250. * Convert an address in a kernel buffer to a bus/phys/dma address.
  251. * This work *only* for memory fragments part of lp->page_vaddr,
  252. * because it was properly DMA allocated via pci_alloc_consistent(),
  253. * so we just need to "retrieve" the original mapping to bus/phys/dma
  254. * address - Jean II */
  255. static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr)
  256. {
  257. struct hp100_private *lp = netdev_priv(dev);
  258. return ((u_long) ptr) + lp->whatever_offset;
  259. }
  260. static inline u_int pdl_map_data(struct hp100_private *lp, void *data)
  261. {
  262. return pci_map_single(lp->pci_dev, data,
  263. MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
  264. }
  265. /* TODO: This function should not really be needed in a good design... */
  266. static void wait(void)
  267. {
  268. mdelay(1);
  269. }
  270. /*
  271. * probe functions
  272. * These functions should - if possible - avoid doing write operations
  273. * since this could cause problems when the card is not installed.
  274. */
  275. /*
  276. * Read board id and convert to string.
  277. * Effectively same code as decode_eisa_sig
  278. */
  279. static __devinit const char *hp100_read_id(int ioaddr)
  280. {
  281. int i;
  282. static char str[HP100_SIG_LEN];
  283. unsigned char sig[4], sum;
  284. unsigned short rev;
  285. hp100_page(ID_MAC_ADDR);
  286. sum = 0;
  287. for (i = 0; i < 4; i++) {
  288. sig[i] = hp100_inb(BOARD_ID + i);
  289. sum += sig[i];
  290. }
  291. sum += hp100_inb(BOARD_ID + i);
  292. if (sum != 0xff)
  293. return NULL; /* bad checksum */
  294. str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1);
  295. str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1);
  296. str[2] = (sig[1] & 0x1f) + ('A' - 1);
  297. rev = (sig[2] << 8) | sig[3];
  298. sprintf(str + 3, "%04X", rev);
  299. return str;
  300. }
  301. #ifdef CONFIG_ISA
  302. static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr)
  303. {
  304. const char *sig;
  305. int i;
  306. if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100"))
  307. goto err;
  308. if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) {
  309. release_region(ioaddr, HP100_REGION_SIZE);
  310. goto err;
  311. }
  312. sig = hp100_read_id(ioaddr);
  313. release_region(ioaddr, HP100_REGION_SIZE);
  314. if (sig == NULL)
  315. goto err;
  316. for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) {
  317. if (!strcmp(hp100_isa_tbl[i], sig))
  318. break;
  319. }
  320. if (i < ARRAY_SIZE(hp100_isa_tbl))
  321. return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL);
  322. err:
  323. return -ENODEV;
  324. }
  325. /*
  326. * Probe for ISA board.
  327. * EISA and PCI are handled by device infrastructure.
  328. */
  329. static int __init hp100_isa_probe(struct net_device *dev, int addr)
  330. {
  331. int err = -ENODEV;
  332. /* Probe for a specific ISA address */
  333. if (addr > 0xff && addr < 0x400)
  334. err = hp100_isa_probe1(dev, addr);
  335. else if (addr != 0)
  336. err = -ENXIO;
  337. else {
  338. /* Probe all ISA possible port regions */
  339. for (addr = 0x100; addr < 0x400; addr += 0x20) {
  340. err = hp100_isa_probe1(dev, addr);
  341. if (!err)
  342. break;
  343. }
  344. }
  345. return err;
  346. }
  347. #endif /* CONFIG_ISA */
  348. #if !defined(MODULE) && defined(CONFIG_ISA)
  349. struct net_device * __init hp100_probe(int unit)
  350. {
  351. struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
  352. int err;
  353. if (!dev)
  354. return ERR_PTR(-ENODEV);
  355. SET_MODULE_OWNER(dev);
  356. #ifdef HP100_DEBUG_B
  357. hp100_outw(0x4200, TRACE);
  358. printk("hp100: %s: probe\n", dev->name);
  359. #endif
  360. if (unit >= 0) {
  361. sprintf(dev->name, "eth%d", unit);
  362. netdev_boot_setup_check(dev);
  363. }
  364. err = hp100_isa_probe(dev, dev->base_addr);
  365. if (err)
  366. goto out;
  367. return dev;
  368. out:
  369. free_netdev(dev);
  370. return ERR_PTR(err);
  371. }
  372. #endif /* !MODULE && CONFIG_ISA */
  373. static int __devinit hp100_probe1(struct net_device *dev, int ioaddr,
  374. u_char bus, struct pci_dev *pci_dev)
  375. {
  376. int i;
  377. int err = -ENODEV;
  378. const char *eid;
  379. u_int chip;
  380. u_char uc;
  381. u_int memory_size = 0, virt_memory_size = 0;
  382. u_short local_mode, lsw;
  383. short mem_mapped;
  384. unsigned long mem_ptr_phys;
  385. void __iomem *mem_ptr_virt;
  386. struct hp100_private *lp;
  387. #ifdef HP100_DEBUG_B
  388. hp100_outw(0x4201, TRACE);
  389. printk("hp100: %s: probe1\n", dev->name);
  390. #endif
  391. /* memory region for programmed i/o */
  392. if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100"))
  393. goto out1;
  394. if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE)
  395. goto out2;
  396. chip = hp100_inw(PAGING) & HP100_CHIPID_MASK;
  397. #ifdef HP100_DEBUG
  398. if (chip == HP100_CHIPID_SHASTA)
  399. printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name);
  400. else if (chip == HP100_CHIPID_RAINIER)
  401. printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name);
  402. else if (chip == HP100_CHIPID_LASSEN)
  403. printk("hp100: %s: Lassen Chip detected.\n", dev->name);
  404. else
  405. printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip);
  406. #endif
  407. dev->base_addr = ioaddr;
  408. eid = hp100_read_id(ioaddr);
  409. if (eid == NULL) { /* bad checksum? */
  410. printk(KERN_WARNING "hp100_probe: bad ID checksum at base port 0x%x\n", ioaddr);
  411. goto out2;
  412. }
  413. hp100_page(ID_MAC_ADDR);
  414. for (i = uc = 0; i < 7; i++)
  415. uc += hp100_inb(LAN_ADDR + i);
  416. if (uc != 0xff) {
  417. printk(KERN_WARNING "hp100_probe: bad lan address checksum at port 0x%x)\n", ioaddr);
  418. err = -EIO;
  419. goto out2;
  420. }
  421. /* Make sure, that all registers are correctly updated... */
  422. hp100_load_eeprom(dev, ioaddr);
  423. wait();
  424. /*
  425. * Determine driver operation mode
  426. *
  427. * Use the variable "hp100_mode" upon insmod or as kernel parameter to
  428. * force driver modes:
  429. * hp100_mode=1 -> default, use busmaster mode if configured.
  430. * hp100_mode=2 -> enable shared memory mode
  431. * hp100_mode=3 -> force use of i/o mapped mode.
  432. * hp100_mode=4 -> same as 1, but re-set the enable bit on the card.
  433. */
  434. /*
  435. * LSW values:
  436. * 0x2278 -> J2585B, PnP shared memory mode
  437. * 0x2270 -> J2585B, shared memory mode, 0xdc000
  438. * 0xa23c -> J2585B, I/O mapped mode
  439. * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip)
  440. * 0x2220 -> EISA HP, I/O (Shasta Chip)
  441. * 0x2260 -> EISA HP, BusMaster (Shasta Chip)
  442. */
  443. #if 0
  444. local_mode = 0x2270;
  445. hp100_outw(0xfefe, OPTION_LSW);
  446. hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW);
  447. #endif
  448. /* hp100_mode value maybe used in future by another card */
  449. local_mode = hp100_mode;
  450. if (local_mode < 1 || local_mode > 4)
  451. local_mode = 1; /* default */
  452. #ifdef HP100_DEBUG
  453. printk("hp100: %s: original LSW = 0x%x\n", dev->name,
  454. hp100_inw(OPTION_LSW));
  455. #endif
  456. if (local_mode == 3) {
  457. hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW);
  458. hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
  459. hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
  460. printk("hp100: IO mapped mode forced.\n");
  461. } else if (local_mode == 2) {
  462. hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
  463. hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
  464. hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
  465. printk("hp100: Shared memory mode requested.\n");
  466. } else if (local_mode == 4) {
  467. if (chip == HP100_CHIPID_LASSEN) {
  468. hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW);
  469. hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW);
  470. printk("hp100: Busmaster mode requested.\n");
  471. }
  472. local_mode = 1;
  473. }
  474. if (local_mode == 1) { /* default behaviour */
  475. lsw = hp100_inw(OPTION_LSW);
  476. if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) &&
  477. (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) {
  478. #ifdef HP100_DEBUG
  479. printk("hp100: %s: IO_EN bit is set on card.\n", dev->name);
  480. #endif
  481. local_mode = 3;
  482. } else if (chip == HP100_CHIPID_LASSEN &&
  483. (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) {
  484. /* Conversion to new PCI API :
  485. * I don't have the doc, but I assume that the card
  486. * can map the full 32bit address space.
  487. * Also, we can have EISA Busmaster cards (not tested),
  488. * so beware !!! - Jean II */
  489. if((bus == HP100_BUS_PCI) &&
  490. (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK))) {
  491. /* Gracefully fallback to shared memory */
  492. goto busmasterfail;
  493. }
  494. printk("hp100: Busmaster mode enabled.\n");
  495. hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
  496. } else {
  497. busmasterfail:
  498. #ifdef HP100_DEBUG
  499. printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name);
  500. printk("hp100: %s: Trying shared memory mode.\n", dev->name);
  501. #endif
  502. /* In this case, try shared memory mode */
  503. local_mode = 2;
  504. hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
  505. /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */
  506. }
  507. }
  508. #ifdef HP100_DEBUG
  509. printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW));
  510. #endif
  511. /* Check for shared memory on the card, eventually remap it */
  512. hp100_page(HW_MAP);
  513. mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0);
  514. mem_ptr_phys = 0UL;
  515. mem_ptr_virt = NULL;
  516. memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07));
  517. virt_memory_size = 0;
  518. /* For memory mapped or busmaster mode, we want the memory address */
  519. if (mem_mapped || (local_mode == 1)) {
  520. mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16));
  521. mem_ptr_phys &= ~0x1fff; /* 8k alignment */
  522. if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) {
  523. printk("hp100: Can only use programmed i/o mode.\n");
  524. mem_ptr_phys = 0;
  525. mem_mapped = 0;
  526. local_mode = 3; /* Use programmed i/o */
  527. }
  528. /* We do not need access to shared memory in busmaster mode */
  529. /* However in slave mode we need to remap high (>1GB) card memory */
  530. if (local_mode != 1) { /* = not busmaster */
  531. /* We try with smaller memory sizes, if ioremap fails */
  532. for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) {
  533. if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) {
  534. #ifdef HP100_DEBUG
  535. printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys);
  536. #endif
  537. } else {
  538. #ifdef HP100_DEBUG
  539. 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);
  540. #endif
  541. break;
  542. }
  543. }
  544. if (mem_ptr_virt == NULL) { /* all ioremap tries failed */
  545. printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n");
  546. local_mode = 3;
  547. virt_memory_size = 0;
  548. }
  549. }
  550. }
  551. if (local_mode == 3) { /* io mapped forced */
  552. mem_mapped = 0;
  553. mem_ptr_phys = 0;
  554. mem_ptr_virt = NULL;
  555. printk("hp100: Using (slow) programmed i/o mode.\n");
  556. }
  557. /* Initialise the "private" data structure for this card. */
  558. lp = netdev_priv(dev);
  559. spin_lock_init(&lp->lock);
  560. strlcpy(lp->id, eid, HP100_SIG_LEN);
  561. lp->chip = chip;
  562. lp->mode = local_mode;
  563. lp->bus = bus;
  564. lp->pci_dev = pci_dev;
  565. lp->priority_tx = hp100_priority_tx;
  566. lp->rx_ratio = hp100_rx_ratio;
  567. lp->mem_ptr_phys = mem_ptr_phys;
  568. lp->mem_ptr_virt = mem_ptr_virt;
  569. hp100_page(ID_MAC_ADDR);
  570. lp->soft_model = hp100_inb(SOFT_MODEL);
  571. lp->mac1_mode = HP100_MAC1MODE3;
  572. lp->mac2_mode = HP100_MAC2MODE3;
  573. memset(&lp->hash_bytes, 0x00, 8);
  574. dev->base_addr = ioaddr;
  575. lp->memory_size = memory_size;
  576. lp->virt_memory_size = virt_memory_size;
  577. lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */
  578. dev->open = hp100_open;
  579. dev->stop = hp100_close;
  580. if (lp->mode == 1) /* busmaster */
  581. dev->hard_start_xmit = hp100_start_xmit_bm;
  582. else
  583. dev->hard_start_xmit = hp100_start_xmit;
  584. dev->get_stats = hp100_get_stats;
  585. dev->set_multicast_list = &hp100_set_multicast_list;
  586. /* Ask the card for which IRQ line it is configured */
  587. if (bus == HP100_BUS_PCI) {
  588. dev->irq = pci_dev->irq;
  589. } else {
  590. hp100_page(HW_MAP);
  591. dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK;
  592. if (dev->irq == 2)
  593. dev->irq = 9;
  594. }
  595. if (lp->mode == 1) /* busmaster */
  596. dev->dma = 4;
  597. /* Ask the card for its MAC address and store it for later use. */
  598. hp100_page(ID_MAC_ADDR);
  599. for (i = uc = 0; i < 6; i++)
  600. dev->dev_addr[i] = hp100_inb(LAN_ADDR + i);
  601. /* Reset statistics (counters) */
  602. hp100_clear_stats(lp, ioaddr);
  603. /* If busmaster mode is wanted, a dma-capable memory area is needed for
  604. * the rx and tx PDLs
  605. * PCI cards can access the whole PC memory. Therefore GFP_DMA is not
  606. * needed for the allocation of the memory area.
  607. */
  608. /* TODO: We do not need this with old cards, where PDLs are stored
  609. * in the cards shared memory area. But currently, busmaster has been
  610. * implemented/tested only with the lassen chip anyway... */
  611. if (lp->mode == 1) { /* busmaster */
  612. dma_addr_t page_baddr;
  613. /* Get physically continous memory for TX & RX PDLs */
  614. /* Conversion to new PCI API :
  615. * Pages are always aligned and zeroed, no need to it ourself.
  616. * Doc says should be OK for EISA bus as well - Jean II */
  617. if ((lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr)) == NULL) {
  618. err = -ENOMEM;
  619. goto out2;
  620. }
  621. lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn);
  622. #ifdef HP100_DEBUG_BM
  623. 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);
  624. #endif
  625. lp->rxrcommit = lp->txrcommit = 0;
  626. lp->rxrhead = lp->rxrtail = &(lp->rxring[0]);
  627. lp->txrhead = lp->txrtail = &(lp->txring[0]);
  628. }
  629. /* Initialise the card. */
  630. /* (I'm not really sure if it's a good idea to do this during probing, but
  631. * like this it's assured that the lan connection type can be sensed
  632. * correctly)
  633. */
  634. hp100_hwinit(dev);
  635. /* Try to find out which kind of LAN the card is connected to. */
  636. lp->lan_type = hp100_sense_lan(dev);
  637. /* Print out a message what about what we think we have probed. */
  638. printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq);
  639. switch (bus) {
  640. case HP100_BUS_EISA:
  641. printk("EISA");
  642. break;
  643. case HP100_BUS_PCI:
  644. printk("PCI");
  645. break;
  646. default:
  647. printk("ISA");
  648. break;
  649. }
  650. printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio);
  651. if (lp->mode == 2) { /* memory mapped */
  652. printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys,
  653. (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1);
  654. if (mem_ptr_virt)
  655. printk(" (virtual base %p)", mem_ptr_virt);
  656. printk(".\n");
  657. /* Set for info when doing ifconfig */
  658. dev->mem_start = mem_ptr_phys;
  659. dev->mem_end = mem_ptr_phys + lp->memory_size;
  660. }
  661. printk("hp100: ");
  662. if (lp->lan_type != HP100_LAN_ERR)
  663. printk("Adapter is attached to ");
  664. switch (lp->lan_type) {
  665. case HP100_LAN_100:
  666. printk("100Mb/s Voice Grade AnyLAN network.\n");
  667. break;
  668. case HP100_LAN_10:
  669. printk("10Mb/s network (10baseT).\n");
  670. break;
  671. case HP100_LAN_COAX:
  672. printk("10Mb/s network (coax).\n");
  673. break;
  674. default:
  675. printk("Warning! Link down.\n");
  676. }
  677. err = register_netdev(dev);
  678. if (err)
  679. goto out3;
  680. return 0;
  681. out3:
  682. if (local_mode == 1)
  683. pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f,
  684. lp->page_vaddr_algn,
  685. virt_to_whatever(dev, lp->page_vaddr_algn));
  686. if (mem_ptr_virt)
  687. iounmap(mem_ptr_virt);
  688. out2:
  689. release_region(ioaddr, HP100_REGION_SIZE);
  690. out1:
  691. return err;
  692. }
  693. /* This procedure puts the card into a stable init state */
  694. static void hp100_hwinit(struct net_device *dev)
  695. {
  696. int ioaddr = dev->base_addr;
  697. struct hp100_private *lp = netdev_priv(dev);
  698. #ifdef HP100_DEBUG_B
  699. hp100_outw(0x4202, TRACE);
  700. printk("hp100: %s: hwinit\n", dev->name);
  701. #endif
  702. /* Initialise the card. -------------------------------------------- */
  703. /* Clear all pending Ints and disable Ints */
  704. hp100_page(PERFORMANCE);
  705. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  706. hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */
  707. hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
  708. hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW);
  709. if (lp->mode == 1) {
  710. hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */
  711. wait();
  712. } else {
  713. hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
  714. hp100_cascade_reset(dev, 1);
  715. hp100_page(MAC_CTRL);
  716. hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1);
  717. }
  718. /* Initiate EEPROM reload */
  719. hp100_load_eeprom(dev, 0);
  720. wait();
  721. /* Go into reset again. */
  722. hp100_cascade_reset(dev, 1);
  723. /* Set Option Registers to a safe state */
  724. hp100_outw(HP100_DEBUG_EN |
  725. HP100_RX_HDR |
  726. HP100_EE_EN |
  727. HP100_BM_WRITE |
  728. HP100_BM_READ | HP100_RESET_HB |
  729. HP100_FAKE_INT |
  730. HP100_INT_EN |
  731. HP100_MEM_EN |
  732. HP100_IO_EN | HP100_RESET_LB, OPTION_LSW);
  733. hp100_outw(HP100_TRI_INT |
  734. HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW);
  735. hp100_outb(HP100_PRIORITY_TX |
  736. HP100_ADV_NXT_PKT |
  737. HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW);
  738. /* TODO: Configure MMU for Ram Test. */
  739. /* TODO: Ram Test. */
  740. /* Re-check if adapter is still at same i/o location */
  741. /* (If the base i/o in eeprom has been changed but the */
  742. /* registers had not been changed, a reload of the eeprom */
  743. /* would move the adapter to the address stored in eeprom */
  744. /* TODO: Code to implement. */
  745. /* Until here it was code from HWdiscover procedure. */
  746. /* Next comes code from mmuinit procedure of SCO BM driver which is
  747. * called from HWconfigure in the SCO driver. */
  748. /* Initialise MMU, eventually switch on Busmaster Mode, initialise
  749. * multicast filter...
  750. */
  751. hp100_mmuinit(dev);
  752. /* We don't turn the interrupts on here - this is done by start_interface. */
  753. wait(); /* TODO: Do we really need this? */
  754. /* Enable Hardware (e.g. unreset) */
  755. hp100_cascade_reset(dev, 0);
  756. /* ------- initialisation complete ----------- */
  757. /* Finally try to log in the Hub if there may be a VG connection. */
  758. if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR))
  759. hp100_login_to_vg_hub(dev, 0); /* relogin */
  760. }
  761. /*
  762. * mmuinit - Reinitialise Cascade MMU and MAC settings.
  763. * Note: Must already be in reset and leaves card in reset.
  764. */
  765. static void hp100_mmuinit(struct net_device *dev)
  766. {
  767. int ioaddr = dev->base_addr;
  768. struct hp100_private *lp = netdev_priv(dev);
  769. int i;
  770. #ifdef HP100_DEBUG_B
  771. hp100_outw(0x4203, TRACE);
  772. printk("hp100: %s: mmuinit\n", dev->name);
  773. #endif
  774. #ifdef HP100_DEBUG
  775. if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) {
  776. printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name);
  777. return;
  778. }
  779. #endif
  780. /* Make sure IRQs are masked off and ack'ed. */
  781. hp100_page(PERFORMANCE);
  782. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  783. hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
  784. /*
  785. * Enable Hardware
  786. * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En
  787. * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable
  788. * - Clear Priority, Advance Pkt and Xmit Cmd
  789. */
  790. hp100_outw(HP100_DEBUG_EN |
  791. HP100_RX_HDR |
  792. HP100_EE_EN | HP100_RESET_HB |
  793. HP100_IO_EN |
  794. HP100_FAKE_INT |
  795. HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
  796. hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW);
  797. if (lp->mode == 1) { /* busmaster */
  798. hp100_outw(HP100_BM_WRITE |
  799. HP100_BM_READ |
  800. HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW);
  801. } else if (lp->mode == 2) { /* memory mapped */
  802. hp100_outw(HP100_BM_WRITE |
  803. HP100_BM_READ | HP100_RESET_HB, OPTION_LSW);
  804. hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW);
  805. hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW);
  806. hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
  807. } else if (lp->mode == 3) { /* i/o mapped mode */
  808. hp100_outw(HP100_MMAP_DIS | HP100_SET_HB |
  809. HP100_IO_EN | HP100_SET_LB, OPTION_LSW);
  810. }
  811. hp100_page(HW_MAP);
  812. hp100_outb(0, EARLYRXCFG);
  813. hp100_outw(0, EARLYTXCFG);
  814. /*
  815. * Enable Bus Master mode
  816. */
  817. if (lp->mode == 1) { /* busmaster */
  818. /* Experimental: Set some PCI configuration bits */
  819. hp100_page(HW_MAP);
  820. hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */
  821. hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */
  822. /* PCI Bus failures should result in a Misc. Interrupt */
  823. hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2);
  824. hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW);
  825. hp100_page(HW_MAP);
  826. /* Use Burst Mode and switch on PAGE_CK */
  827. hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM);
  828. if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA))
  829. hp100_orb(HP100_BM_PAGE_CK, BM);
  830. hp100_orb(HP100_BM_MASTER, BM);
  831. } else { /* not busmaster */
  832. hp100_page(HW_MAP);
  833. hp100_andb(~HP100_BM_MASTER, BM);
  834. }
  835. /*
  836. * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs
  837. */
  838. hp100_page(MMU_CFG);
  839. if (lp->mode == 1) { /* only needed for Busmaster */
  840. int xmit_stop, recv_stop;
  841. if ((lp->chip == HP100_CHIPID_RAINIER)
  842. || (lp->chip == HP100_CHIPID_SHASTA)) {
  843. int pdl_stop;
  844. /*
  845. * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and
  846. * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded
  847. * to the next higher 1k boundary) bytes for the rx-pdl's
  848. * Note: For non-etr chips the transmit stop register must be
  849. * programmed on a 1k boundary, i.e. bits 9:0 must be zero.
  850. */
  851. pdl_stop = lp->memory_size;
  852. xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff);
  853. recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff);
  854. hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP);
  855. #ifdef HP100_DEBUG_BM
  856. printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop);
  857. #endif
  858. } else {
  859. /* ETR chip (Lassen) in busmaster mode */
  860. xmit_stop = (lp->memory_size) - 1;
  861. recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff);
  862. }
  863. hp100_outw(xmit_stop >> 4, TX_MEM_STOP);
  864. hp100_outw(recv_stop >> 4, RX_MEM_STOP);
  865. #ifdef HP100_DEBUG_BM
  866. printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4);
  867. printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4);
  868. #endif
  869. } else {
  870. /* Slave modes (memory mapped and programmed io) */
  871. hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP);
  872. hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP);
  873. #ifdef HP100_DEBUG
  874. printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP));
  875. printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP));
  876. #endif
  877. }
  878. /* Write MAC address into page 1 */
  879. hp100_page(MAC_ADDRESS);
  880. for (i = 0; i < 6; i++)
  881. hp100_outb(dev->dev_addr[i], MAC_ADDR + i);
  882. /* Zero the multicast hash registers */
  883. for (i = 0; i < 8; i++)
  884. hp100_outb(0x0, HASH_BYTE0 + i);
  885. /* Set up MAC defaults */
  886. hp100_page(MAC_CTRL);
  887. /* Go to LAN Page and zero all filter bits */
  888. /* Zero accept error, accept multicast, accept broadcast and accept */
  889. /* all directed packet bits */
  890. hp100_andb(~(HP100_RX_EN |
  891. HP100_TX_EN |
  892. HP100_ACC_ERRORED |
  893. HP100_ACC_MC |
  894. HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1);
  895. hp100_outb(0x00, MAC_CFG_2);
  896. /* Zero the frame format bit. This works around a training bug in the */
  897. /* new hubs. */
  898. hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */
  899. if (lp->priority_tx)
  900. hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW);
  901. else
  902. hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW);
  903. hp100_outb(HP100_ADV_NXT_PKT |
  904. HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW);
  905. /* If busmaster, initialize the PDLs */
  906. if (lp->mode == 1)
  907. hp100_init_pdls(dev);
  908. /* Go to performance page and initalize isr and imr registers */
  909. hp100_page(PERFORMANCE);
  910. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  911. hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
  912. }
  913. /*
  914. * open/close functions
  915. */
  916. static int hp100_open(struct net_device *dev)
  917. {
  918. struct hp100_private *lp = netdev_priv(dev);
  919. #ifdef HP100_DEBUG_B
  920. int ioaddr = dev->base_addr;
  921. #endif
  922. #ifdef HP100_DEBUG_B
  923. hp100_outw(0x4204, TRACE);
  924. printk("hp100: %s: open\n", dev->name);
  925. #endif
  926. /* New: if bus is PCI or EISA, interrupts might be shared interrupts */
  927. if (request_irq(dev->irq, hp100_interrupt,
  928. lp->bus == HP100_BUS_PCI || lp->bus ==
  929. HP100_BUS_EISA ? IRQF_SHARED : IRQF_DISABLED,
  930. "hp100", dev)) {
  931. printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq);
  932. return -EAGAIN;
  933. }
  934. dev->trans_start = jiffies;
  935. netif_start_queue(dev);
  936. lp->lan_type = hp100_sense_lan(dev);
  937. lp->mac1_mode = HP100_MAC1MODE3;
  938. lp->mac2_mode = HP100_MAC2MODE3;
  939. memset(&lp->hash_bytes, 0x00, 8);
  940. hp100_stop_interface(dev);
  941. hp100_hwinit(dev);
  942. hp100_start_interface(dev); /* sets mac modes, enables interrupts */
  943. return 0;
  944. }
  945. /* The close function is called when the interface is to be brought down */
  946. static int hp100_close(struct net_device *dev)
  947. {
  948. int ioaddr = dev->base_addr;
  949. struct hp100_private *lp = netdev_priv(dev);
  950. #ifdef HP100_DEBUG_B
  951. hp100_outw(0x4205, TRACE);
  952. printk("hp100: %s: close\n", dev->name);
  953. #endif
  954. hp100_page(PERFORMANCE);
  955. hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */
  956. hp100_stop_interface(dev);
  957. if (lp->lan_type == HP100_LAN_100)
  958. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  959. netif_stop_queue(dev);
  960. free_irq(dev->irq, dev);
  961. #ifdef HP100_DEBUG
  962. printk("hp100: %s: close LSW = 0x%x\n", dev->name,
  963. hp100_inw(OPTION_LSW));
  964. #endif
  965. return 0;
  966. }
  967. /*
  968. * Configure the PDL Rx rings and LAN
  969. */
  970. static void hp100_init_pdls(struct net_device *dev)
  971. {
  972. struct hp100_private *lp = netdev_priv(dev);
  973. hp100_ring_t *ringptr;
  974. u_int *pageptr; /* Warning : increment by 4 - Jean II */
  975. int i;
  976. #ifdef HP100_DEBUG_B
  977. int ioaddr = dev->base_addr;
  978. #endif
  979. #ifdef HP100_DEBUG_B
  980. hp100_outw(0x4206, TRACE);
  981. printk("hp100: %s: init pdls\n", dev->name);
  982. #endif
  983. if (0 == lp->page_vaddr_algn)
  984. printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name);
  985. else {
  986. /* pageptr shall point into the DMA accessible memory region */
  987. /* we use this pointer to status the upper limit of allocated */
  988. /* memory in the allocated page. */
  989. /* note: align the pointers to the pci cache line size */
  990. memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */
  991. pageptr = lp->page_vaddr_algn;
  992. lp->rxrcommit = 0;
  993. ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]);
  994. /* Initialise Rx Ring */
  995. for (i = MAX_RX_PDL - 1; i >= 0; i--) {
  996. lp->rxring[i].next = ringptr;
  997. ringptr = &(lp->rxring[i]);
  998. pageptr += hp100_init_rxpdl(dev, ringptr, pageptr);
  999. }
  1000. /* Initialise Tx Ring */
  1001. lp->txrcommit = 0;
  1002. ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]);
  1003. for (i = MAX_TX_PDL - 1; i >= 0; i--) {
  1004. lp->txring[i].next = ringptr;
  1005. ringptr = &(lp->txring[i]);
  1006. pageptr += hp100_init_txpdl(dev, ringptr, pageptr);
  1007. }
  1008. }
  1009. }
  1010. /* These functions "format" the entries in the pdl structure */
  1011. /* They return how much memory the fragments need. */
  1012. static int hp100_init_rxpdl(struct net_device *dev,
  1013. register hp100_ring_t * ringptr,
  1014. register u32 * pdlptr)
  1015. {
  1016. /* pdlptr is starting address for this pdl */
  1017. if (0 != (((unsigned long) pdlptr) & 0xf))
  1018. printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n",
  1019. dev->name, (unsigned long) pdlptr);
  1020. ringptr->pdl = pdlptr + 1;
  1021. ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1);
  1022. ringptr->skb = (void *) NULL;
  1023. /*
  1024. * Write address and length of first PDL Fragment (which is used for
  1025. * storing the RX-Header
  1026. * We use the 4 bytes _before_ the PDH in the pdl memory area to
  1027. * store this information. (PDH is at offset 0x04)
  1028. */
  1029. /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */
  1030. *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */
  1031. *(pdlptr + 3) = 4; /* Length Frag 1 */
  1032. return ((((MAX_RX_FRAG * 2 + 2) + 3) / 4) * 4);
  1033. }
  1034. static int hp100_init_txpdl(struct net_device *dev,
  1035. register hp100_ring_t * ringptr,
  1036. register u32 * pdlptr)
  1037. {
  1038. if (0 != (((unsigned long) pdlptr) & 0xf))
  1039. printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr);
  1040. ringptr->pdl = pdlptr; /* +1; */
  1041. ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */
  1042. ringptr->skb = (void *) NULL;
  1043. return ((((MAX_TX_FRAG * 2 + 2) + 3) / 4) * 4);
  1044. }
  1045. /*
  1046. * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes
  1047. * for possible odd word alignment rounding up to next dword and set PDL
  1048. * address for fragment#2
  1049. * Returns: 0 if unable to allocate skb_buff
  1050. * 1 if successful
  1051. */
  1052. static int hp100_build_rx_pdl(hp100_ring_t * ringptr,
  1053. struct net_device *dev)
  1054. {
  1055. #ifdef HP100_DEBUG_B
  1056. int ioaddr = dev->base_addr;
  1057. #endif
  1058. #ifdef HP100_DEBUG_BM
  1059. u_int *p;
  1060. #endif
  1061. #ifdef HP100_DEBUG_B
  1062. hp100_outw(0x4207, TRACE);
  1063. printk("hp100: %s: build rx pdl\n", dev->name);
  1064. #endif
  1065. /* Allocate skb buffer of maximum size */
  1066. /* Note: This depends on the alloc_skb functions allocating more
  1067. * space than requested, i.e. aligning to 16bytes */
  1068. ringptr->skb = dev_alloc_skb(((MAX_ETHER_SIZE + 2 + 3) / 4) * 4);
  1069. if (NULL != ringptr->skb) {
  1070. /*
  1071. * Reserve 2 bytes at the head of the buffer to land the IP header
  1072. * on a long word boundary (According to the Network Driver section
  1073. * in the Linux KHG, this should help to increase performance.)
  1074. */
  1075. skb_reserve(ringptr->skb, 2);
  1076. ringptr->skb->dev = dev;
  1077. ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE);
  1078. /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */
  1079. /* Note: 1st Fragment is used for the 4 byte packet status
  1080. * (receive header). Its PDL entries are set up by init_rxpdl. So
  1081. * here we only have to set up the PDL fragment entries for the data
  1082. * part. Those 4 bytes will be stored in the DMA memory region
  1083. * directly before the PDL.
  1084. */
  1085. #ifdef HP100_DEBUG_BM
  1086. printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n",
  1087. dev->name, (u_int) ringptr->pdl,
  1088. ((MAX_ETHER_SIZE + 2 + 3) / 4) * 4,
  1089. (unsigned int) ringptr->skb->data);
  1090. #endif
  1091. /* Conversion to new PCI API : map skbuf data to PCI bus.
  1092. * Doc says it's OK for EISA as well - Jean II */
  1093. ringptr->pdl[0] = 0x00020000; /* Write PDH */
  1094. ringptr->pdl[3] = pdl_map_data(netdev_priv(dev),
  1095. ringptr->skb->data);
  1096. ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */
  1097. #ifdef HP100_DEBUG_BM
  1098. for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++)
  1099. printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p);
  1100. #endif
  1101. return (1);
  1102. }
  1103. /* else: */
  1104. /* alloc_skb failed (no memory) -> still can receive the header
  1105. * fragment into PDL memory. make PDL safe by clearing msgptr and
  1106. * making the PDL only 1 fragment (i.e. the 4 byte packet status)
  1107. */
  1108. #ifdef HP100_DEBUG_BM
  1109. printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl);
  1110. #endif
  1111. ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */
  1112. return (0);
  1113. }
  1114. /*
  1115. * hp100_rxfill - attempt to fill the Rx Ring will empty skb's
  1116. *
  1117. * Makes assumption that skb's are always contiguous memory areas and
  1118. * therefore PDLs contain only 2 physical fragments.
  1119. * - While the number of Rx PDLs with buffers is less than maximum
  1120. * a. Get a maximum packet size skb
  1121. * b. Put the physical address of the buffer into the PDL.
  1122. * c. Output physical address of PDL to adapter.
  1123. */
  1124. static void hp100_rxfill(struct net_device *dev)
  1125. {
  1126. int ioaddr = dev->base_addr;
  1127. struct hp100_private *lp = netdev_priv(dev);
  1128. hp100_ring_t *ringptr;
  1129. #ifdef HP100_DEBUG_B
  1130. hp100_outw(0x4208, TRACE);
  1131. printk("hp100: %s: rxfill\n", dev->name);
  1132. #endif
  1133. hp100_page(PERFORMANCE);
  1134. while (lp->rxrcommit < MAX_RX_PDL) {
  1135. /*
  1136. ** Attempt to get a buffer and build a Rx PDL.
  1137. */
  1138. ringptr = lp->rxrtail;
  1139. if (0 == hp100_build_rx_pdl(ringptr, dev)) {
  1140. return; /* None available, return */
  1141. }
  1142. /* Hand this PDL over to the card */
  1143. /* Note: This needs performance page selected! */
  1144. #ifdef HP100_DEBUG_BM
  1145. printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n",
  1146. dev->name, lp->rxrcommit, (u_int) ringptr->pdl,
  1147. (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]);
  1148. #endif
  1149. hp100_outl((u32) ringptr->pdl_paddr, RX_PDA);
  1150. lp->rxrcommit += 1;
  1151. lp->rxrtail = ringptr->next;
  1152. }
  1153. }
  1154. /*
  1155. * BM_shutdown - shutdown bus mastering and leave chip in reset state
  1156. */
  1157. static void hp100_BM_shutdown(struct net_device *dev)
  1158. {
  1159. int ioaddr = dev->base_addr;
  1160. struct hp100_private *lp = netdev_priv(dev);
  1161. unsigned long time;
  1162. #ifdef HP100_DEBUG_B
  1163. hp100_outw(0x4209, TRACE);
  1164. printk("hp100: %s: bm shutdown\n", dev->name);
  1165. #endif
  1166. hp100_page(PERFORMANCE);
  1167. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  1168. hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */
  1169. /* Ensure Interrupts are off */
  1170. hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW);
  1171. /* Disable all MAC activity */
  1172. hp100_page(MAC_CTRL);
  1173. hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */
  1174. /* If cascade MMU is not already in reset */
  1175. if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) {
  1176. /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so
  1177. * MMU pointers will not be reset out from underneath
  1178. */
  1179. hp100_page(MAC_CTRL);
  1180. for (time = 0; time < 5000; time++) {
  1181. if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE))
  1182. break;
  1183. }
  1184. /* Shutdown algorithm depends on the generation of Cascade */
  1185. if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */
  1186. /* Disable Busmaster mode and wait for bit to go to zero. */
  1187. hp100_page(HW_MAP);
  1188. hp100_andb(~HP100_BM_MASTER, BM);
  1189. /* 100 ms timeout */
  1190. for (time = 0; time < 32000; time++) {
  1191. if (0 == (hp100_inb(BM) & HP100_BM_MASTER))
  1192. break;
  1193. }
  1194. } else { /* Shasta or Rainier Shutdown/Reset */
  1195. /* To ensure all bus master inloading activity has ceased,
  1196. * wait for no Rx PDAs or no Rx packets on card.
  1197. */
  1198. hp100_page(PERFORMANCE);
  1199. /* 100 ms timeout */
  1200. for (time = 0; time < 10000; time++) {
  1201. /* RX_PDL: PDLs not executed. */
  1202. /* RX_PKT_CNT: RX'd packets on card. */
  1203. if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0))
  1204. break;
  1205. }
  1206. if (time >= 10000)
  1207. printk("hp100: %s: BM shutdown error.\n", dev->name);
  1208. /* To ensure all bus master outloading activity has ceased,
  1209. * wait until the Tx PDA count goes to zero or no more Tx space
  1210. * available in the Tx region of the card.
  1211. */
  1212. /* 100 ms timeout */
  1213. for (time = 0; time < 10000; time++) {
  1214. if ((0 == hp100_inb(TX_PKT_CNT)) &&
  1215. (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE)))
  1216. break;
  1217. }
  1218. /* Disable Busmaster mode */
  1219. hp100_page(HW_MAP);
  1220. hp100_andb(~HP100_BM_MASTER, BM);
  1221. } /* end of shutdown procedure for non-etr parts */
  1222. hp100_cascade_reset(dev, 1);
  1223. }
  1224. hp100_page(PERFORMANCE);
  1225. /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */
  1226. /* Busmaster mode should be shut down now. */
  1227. }
  1228. static int hp100_check_lan(struct net_device *dev)
  1229. {
  1230. struct hp100_private *lp = netdev_priv(dev);
  1231. if (lp->lan_type < 0) { /* no LAN type detected yet? */
  1232. hp100_stop_interface(dev);
  1233. if ((lp->lan_type = hp100_sense_lan(dev)) < 0) {
  1234. printk("hp100: %s: no connection found - check wire\n", dev->name);
  1235. hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */
  1236. return -EIO;
  1237. }
  1238. if (lp->lan_type == HP100_LAN_100)
  1239. lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */
  1240. hp100_start_interface(dev);
  1241. }
  1242. return 0;
  1243. }
  1244. /*
  1245. * transmit functions
  1246. */
  1247. /* tx function for busmaster mode */
  1248. static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev)
  1249. {
  1250. unsigned long flags;
  1251. int i, ok_flag;
  1252. int ioaddr = dev->base_addr;
  1253. struct hp100_private *lp = netdev_priv(dev);
  1254. hp100_ring_t *ringptr;
  1255. #ifdef HP100_DEBUG_B
  1256. hp100_outw(0x4210, TRACE);
  1257. printk("hp100: %s: start_xmit_bm\n", dev->name);
  1258. #endif
  1259. if (skb == NULL) {
  1260. return 0;
  1261. }
  1262. if (skb->len <= 0)
  1263. return 0;
  1264. if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN))
  1265. return 0;
  1266. /* Get Tx ring tail pointer */
  1267. if (lp->txrtail->next == lp->txrhead) {
  1268. /* No memory. */
  1269. #ifdef HP100_DEBUG
  1270. printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name);
  1271. #endif
  1272. /* not waited long enough since last tx? */
  1273. if (time_before(jiffies, dev->trans_start + HZ))
  1274. return -EAGAIN;
  1275. if (hp100_check_lan(dev))
  1276. return -EIO;
  1277. if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) {
  1278. /* we have a 100Mb/s adapter but it isn't connected to hub */
  1279. printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name);
  1280. hp100_stop_interface(dev);
  1281. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1282. hp100_start_interface(dev);
  1283. } else {
  1284. spin_lock_irqsave(&lp->lock, flags);
  1285. hp100_ints_off(); /* Useful ? Jean II */
  1286. i = hp100_sense_lan(dev);
  1287. hp100_ints_on();
  1288. spin_unlock_irqrestore(&lp->lock, flags);
  1289. if (i == HP100_LAN_ERR)
  1290. printk("hp100: %s: link down detected\n", dev->name);
  1291. else if (lp->lan_type != i) { /* cable change! */
  1292. /* it's very hard - all network settings must be changed!!! */
  1293. printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name);
  1294. lp->lan_type = i;
  1295. hp100_stop_interface(dev);
  1296. if (lp->lan_type == HP100_LAN_100)
  1297. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1298. hp100_start_interface(dev);
  1299. } else {
  1300. printk("hp100: %s: interface reset\n", dev->name);
  1301. hp100_stop_interface(dev);
  1302. if (lp->lan_type == HP100_LAN_100)
  1303. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1304. hp100_start_interface(dev);
  1305. }
  1306. }
  1307. dev->trans_start = jiffies;
  1308. return -EAGAIN;
  1309. }
  1310. /*
  1311. * we have to turn int's off before modifying this, otherwise
  1312. * a tx_pdl_cleanup could occur at the same time
  1313. */
  1314. spin_lock_irqsave(&lp->lock, flags);
  1315. ringptr = lp->txrtail;
  1316. lp->txrtail = ringptr->next;
  1317. /* Check whether packet has minimal packet size */
  1318. ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
  1319. i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
  1320. ringptr->skb = skb;
  1321. ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */
  1322. if (lp->chip == HP100_CHIPID_SHASTA) {
  1323. /* TODO:Could someone who has the EISA card please check if this works? */
  1324. ringptr->pdl[2] = i;
  1325. } else { /* Lassen */
  1326. /* In the PDL, don't use the padded size but the real packet size: */
  1327. ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */
  1328. }
  1329. /* Conversion to new PCI API : map skbuf data to PCI bus.
  1330. * Doc says it's OK for EISA as well - Jean II */
  1331. ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */
  1332. /* Hand this PDL to the card. */
  1333. hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */
  1334. lp->txrcommit++;
  1335. spin_unlock_irqrestore(&lp->lock, flags);
  1336. /* Update statistics */
  1337. lp->stats.tx_packets++;
  1338. lp->stats.tx_bytes += skb->len;
  1339. dev->trans_start = jiffies;
  1340. return 0;
  1341. }
  1342. /* clean_txring checks if packets have been sent by the card by reading
  1343. * the TX_PDL register from the performance page and comparing it to the
  1344. * number of commited packets. It then frees the skb's of the packets that
  1345. * obviously have been sent to the network.
  1346. *
  1347. * Needs the PERFORMANCE page selected.
  1348. */
  1349. static void hp100_clean_txring(struct net_device *dev)
  1350. {
  1351. struct hp100_private *lp = netdev_priv(dev);
  1352. int ioaddr = dev->base_addr;
  1353. int donecount;
  1354. #ifdef HP100_DEBUG_B
  1355. hp100_outw(0x4211, TRACE);
  1356. printk("hp100: %s: clean txring\n", dev->name);
  1357. #endif
  1358. /* How many PDLs have been transmitted? */
  1359. donecount = (lp->txrcommit) - hp100_inb(TX_PDL);
  1360. #ifdef HP100_DEBUG
  1361. if (donecount > MAX_TX_PDL)
  1362. printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name);
  1363. #endif
  1364. for (; 0 != donecount; donecount--) {
  1365. #ifdef HP100_DEBUG_BM
  1366. printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n",
  1367. dev->name, (u_int) lp->txrhead->skb->data,
  1368. lp->txrcommit, hp100_inb(TX_PDL), donecount);
  1369. #endif
  1370. /* Conversion to new PCI API : NOP */
  1371. pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE);
  1372. dev_kfree_skb_any(lp->txrhead->skb);
  1373. lp->txrhead->skb = (void *) NULL;
  1374. lp->txrhead = lp->txrhead->next;
  1375. lp->txrcommit--;
  1376. }
  1377. }
  1378. /* tx function for slave modes */
  1379. static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev)
  1380. {
  1381. unsigned long flags;
  1382. int i, ok_flag;
  1383. int ioaddr = dev->base_addr;
  1384. u_short val;
  1385. struct hp100_private *lp = netdev_priv(dev);
  1386. #ifdef HP100_DEBUG_B
  1387. hp100_outw(0x4212, TRACE);
  1388. printk("hp100: %s: start_xmit\n", dev->name);
  1389. #endif
  1390. if (skb == NULL) {
  1391. return 0;
  1392. }
  1393. if (skb->len <= 0)
  1394. return 0;
  1395. if (hp100_check_lan(dev))
  1396. return -EIO;
  1397. /* If there is not enough free memory on the card... */
  1398. i = hp100_inl(TX_MEM_FREE) & 0x7fffffff;
  1399. if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) {
  1400. #ifdef HP100_DEBUG
  1401. printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i);
  1402. #endif
  1403. /* not waited long enough since last failed tx try? */
  1404. if (time_before(jiffies, dev->trans_start + HZ)) {
  1405. #ifdef HP100_DEBUG
  1406. printk("hp100: %s: trans_start timing problem\n",
  1407. dev->name);
  1408. #endif
  1409. return -EAGAIN;
  1410. }
  1411. if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) {
  1412. /* we have a 100Mb/s adapter but it isn't connected to hub */
  1413. printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name);
  1414. hp100_stop_interface(dev);
  1415. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1416. hp100_start_interface(dev);
  1417. } else {
  1418. spin_lock_irqsave(&lp->lock, flags);
  1419. hp100_ints_off(); /* Useful ? Jean II */
  1420. i = hp100_sense_lan(dev);
  1421. hp100_ints_on();
  1422. spin_unlock_irqrestore(&lp->lock, flags);
  1423. if (i == HP100_LAN_ERR)
  1424. printk("hp100: %s: link down detected\n", dev->name);
  1425. else if (lp->lan_type != i) { /* cable change! */
  1426. /* it's very hard - all network setting must be changed!!! */
  1427. printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name);
  1428. lp->lan_type = i;
  1429. hp100_stop_interface(dev);
  1430. if (lp->lan_type == HP100_LAN_100)
  1431. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1432. hp100_start_interface(dev);
  1433. } else {
  1434. printk("hp100: %s: interface reset\n", dev->name);
  1435. hp100_stop_interface(dev);
  1436. if (lp->lan_type == HP100_LAN_100)
  1437. lp->hub_status = hp100_login_to_vg_hub(dev, 0);
  1438. hp100_start_interface(dev);
  1439. mdelay(1);
  1440. }
  1441. }
  1442. dev->trans_start = jiffies;
  1443. return -EAGAIN;
  1444. }
  1445. for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) {
  1446. #ifdef HP100_DEBUG_TX
  1447. printk("hp100: %s: start_xmit: busy\n", dev->name);
  1448. #endif
  1449. }
  1450. spin_lock_irqsave(&lp->lock, flags);
  1451. hp100_ints_off();
  1452. val = hp100_inw(IRQ_STATUS);
  1453. /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set
  1454. * when the current packet being transmitted on the wire is completed. */
  1455. hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS);
  1456. #ifdef HP100_DEBUG_TX
  1457. printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n",
  1458. dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len);
  1459. #endif
  1460. ok_flag = skb->len >= HP100_MIN_PACKET_SIZE;
  1461. i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE;
  1462. hp100_outw(i, DATA32); /* tell card the total packet length */
  1463. hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */
  1464. if (lp->mode == 2) { /* memory mapped */
  1465. /* Note: The J2585B needs alignment to 32bits here! */
  1466. memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3);
  1467. if (!ok_flag)
  1468. memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len);
  1469. } else { /* programmed i/o */
  1470. outsl(ioaddr + HP100_REG_DATA32, skb->data,
  1471. (skb->len + 3) >> 2);
  1472. if (!ok_flag)
  1473. for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4)
  1474. hp100_outl(0, DATA32);
  1475. }
  1476. hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */
  1477. lp->stats.tx_packets++;
  1478. lp->stats.tx_bytes += skb->len;
  1479. dev->trans_start = jiffies;
  1480. hp100_ints_on();
  1481. spin_unlock_irqrestore(&lp->lock, flags);
  1482. dev_kfree_skb_any(skb);
  1483. #ifdef HP100_DEBUG_TX
  1484. printk("hp100: %s: start_xmit: end\n", dev->name);
  1485. #endif
  1486. return 0;
  1487. }
  1488. /*
  1489. * Receive Function (Non-Busmaster mode)
  1490. * Called when an "Receive Packet" interrupt occurs, i.e. the receive
  1491. * packet counter is non-zero.
  1492. * For non-busmaster, this function does the whole work of transfering
  1493. * the packet to the host memory and then up to higher layers via skb
  1494. * and netif_rx.
  1495. */
  1496. static void hp100_rx(struct net_device *dev)
  1497. {
  1498. int packets, pkt_len;
  1499. int ioaddr = dev->base_addr;
  1500. struct hp100_private *lp = netdev_priv(dev);
  1501. u_int header;
  1502. struct sk_buff *skb;
  1503. #ifdef DEBUG_B
  1504. hp100_outw(0x4213, TRACE);
  1505. printk("hp100: %s: rx\n", dev->name);
  1506. #endif
  1507. /* First get indication of received lan packet */
  1508. /* RX_PKT_CND indicates the number of packets which have been fully */
  1509. /* received onto the card but have not been fully transferred of the card */
  1510. packets = hp100_inb(RX_PKT_CNT);
  1511. #ifdef HP100_DEBUG_RX
  1512. if (packets > 1)
  1513. printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets);
  1514. #endif
  1515. while (packets-- > 0) {
  1516. /* If ADV_NXT_PKT is still set, we have to wait until the card has */
  1517. /* really advanced to the next packet. */
  1518. for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) {
  1519. #ifdef HP100_DEBUG_RX
  1520. printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets);
  1521. #endif
  1522. }
  1523. /* First we get the header, which contains information about the */
  1524. /* actual length of the received packet. */
  1525. if (lp->mode == 2) { /* memory mapped mode */
  1526. header = readl(lp->mem_ptr_virt);
  1527. } else /* programmed i/o */
  1528. header = hp100_inl(DATA32);
  1529. pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3;
  1530. #ifdef HP100_DEBUG_RX
  1531. printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n",
  1532. dev->name, header & HP100_PKT_LEN_MASK,
  1533. (header >> 16) & 0xfff8, (header >> 16) & 7);
  1534. #endif
  1535. /* Now we allocate the skb and transfer the data into it. */
  1536. skb = dev_alloc_skb(pkt_len+2);
  1537. if (skb == NULL) { /* Not enough memory->drop packet */
  1538. #ifdef HP100_DEBUG
  1539. printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n",
  1540. dev->name, pkt_len);
  1541. #endif
  1542. lp->stats.rx_dropped++;
  1543. } else { /* skb successfully allocated */
  1544. u_char *ptr;
  1545. skb_reserve(skb,2);
  1546. skb->dev = dev;
  1547. /* ptr to start of the sk_buff data area */
  1548. skb_put(skb, pkt_len);
  1549. ptr = skb->data;
  1550. /* Now transfer the data from the card into that area */
  1551. if (lp->mode == 2)
  1552. memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len);
  1553. else /* io mapped */
  1554. insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2);
  1555. skb->protocol = eth_type_trans(skb, dev);
  1556. #ifdef HP100_DEBUG_RX
  1557. printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
  1558. dev->name, ptr[0], ptr[1], ptr[2], ptr[3],
  1559. ptr[4], ptr[5], ptr[6], ptr[7], ptr[8],
  1560. ptr[9], ptr[10], ptr[11]);
  1561. #endif
  1562. netif_rx(skb);
  1563. dev->last_rx = jiffies;
  1564. lp->stats.rx_packets++;
  1565. lp->stats.rx_bytes += pkt_len;
  1566. }
  1567. /* Indicate the card that we have got the packet */
  1568. hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW);
  1569. switch (header & 0x00070000) {
  1570. case (HP100_MULTI_ADDR_HASH << 16):
  1571. case (HP100_MULTI_ADDR_NO_HASH << 16):
  1572. lp->stats.multicast++;
  1573. break;
  1574. }
  1575. } /* end of while(there are packets) loop */
  1576. #ifdef HP100_DEBUG_RX
  1577. printk("hp100_rx: %s: end\n", dev->name);
  1578. #endif
  1579. }
  1580. /*
  1581. * Receive Function for Busmaster Mode
  1582. */
  1583. static void hp100_rx_bm(struct net_device *dev)
  1584. {
  1585. int ioaddr = dev->base_addr;
  1586. struct hp100_private *lp = netdev_priv(dev);
  1587. hp100_ring_t *ptr;
  1588. u_int header;
  1589. int pkt_len;
  1590. #ifdef HP100_DEBUG_B
  1591. hp100_outw(0x4214, TRACE);
  1592. printk("hp100: %s: rx_bm\n", dev->name);
  1593. #endif
  1594. #ifdef HP100_DEBUG
  1595. if (0 == lp->rxrcommit) {
  1596. printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name);
  1597. return;
  1598. } else
  1599. /* RX_PKT_CNT states how many PDLs are currently formatted and available to
  1600. * the cards BM engine */
  1601. if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) {
  1602. printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n",
  1603. dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff,
  1604. lp->rxrcommit);
  1605. return;
  1606. }
  1607. #endif
  1608. while ((lp->rxrcommit > hp100_inb(RX_PDL))) {
  1609. /*
  1610. * The packet was received into the pdl pointed to by lp->rxrhead (
  1611. * the oldest pdl in the ring
  1612. */
  1613. /* First we get the header, which contains information about the */
  1614. /* actual length of the received packet. */
  1615. ptr = lp->rxrhead;
  1616. header = *(ptr->pdl - 1);
  1617. pkt_len = (header & HP100_PKT_LEN_MASK);
  1618. /* Conversion to new PCI API : NOP */
  1619. pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE);
  1620. #ifdef HP100_DEBUG_BM
  1621. printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n",
  1622. dev->name, (u_int) (ptr->pdl - 1), (u_int) header,
  1623. pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7);
  1624. 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",
  1625. dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL),
  1626. hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl),
  1627. (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4));
  1628. #endif
  1629. if ((pkt_len >= MIN_ETHER_SIZE) &&
  1630. (pkt_len <= MAX_ETHER_SIZE)) {
  1631. if (ptr->skb == NULL) {
  1632. printk("hp100: %s: rx_bm: skb null\n", dev->name);
  1633. /* can happen if we only allocated room for the pdh due to memory shortage. */
  1634. lp->stats.rx_dropped++;
  1635. } else {
  1636. skb_trim(ptr->skb, pkt_len); /* Shorten it */
  1637. ptr->skb->protocol =
  1638. eth_type_trans(ptr->skb, dev);
  1639. netif_rx(ptr->skb); /* Up and away... */
  1640. dev->last_rx = jiffies;
  1641. lp->stats.rx_packets++;
  1642. lp->stats.rx_bytes += pkt_len;
  1643. }
  1644. switch (header & 0x00070000) {
  1645. case (HP100_MULTI_ADDR_HASH << 16):
  1646. case (HP100_MULTI_ADDR_NO_HASH << 16):
  1647. lp->stats.multicast++;
  1648. break;
  1649. }
  1650. } else {
  1651. #ifdef HP100_DEBUG
  1652. printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len);
  1653. #endif
  1654. if (ptr->skb != NULL)
  1655. dev_kfree_skb_any(ptr->skb);
  1656. lp->stats.rx_errors++;
  1657. }
  1658. lp->rxrhead = lp->rxrhead->next;
  1659. /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */
  1660. if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) {
  1661. /* No space for skb, header can still be received. */
  1662. #ifdef HP100_DEBUG
  1663. printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name);
  1664. #endif
  1665. return;
  1666. } else { /* successfully allocated new PDL - put it in ringlist at tail. */
  1667. hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA);
  1668. lp->rxrtail = lp->rxrtail->next;
  1669. }
  1670. }
  1671. }
  1672. /*
  1673. * statistics
  1674. */
  1675. static struct net_device_stats *hp100_get_stats(struct net_device *dev)
  1676. {
  1677. unsigned long flags;
  1678. int ioaddr = dev->base_addr;
  1679. struct hp100_private *lp = netdev_priv(dev);
  1680. #ifdef HP100_DEBUG_B
  1681. hp100_outw(0x4215, TRACE);
  1682. #endif
  1683. spin_lock_irqsave(&lp->lock, flags);
  1684. hp100_ints_off(); /* Useful ? Jean II */
  1685. hp100_update_stats(dev);
  1686. hp100_ints_on();
  1687. spin_unlock_irqrestore(&lp->lock, flags);
  1688. return &(lp->stats);
  1689. }
  1690. static void hp100_update_stats(struct net_device *dev)
  1691. {
  1692. int ioaddr = dev->base_addr;
  1693. u_short val;
  1694. struct hp100_private *lp = netdev_priv(dev);
  1695. #ifdef HP100_DEBUG_B
  1696. hp100_outw(0x4216, TRACE);
  1697. printk("hp100: %s: update-stats\n", dev->name);
  1698. #endif
  1699. /* Note: Statistics counters clear when read. */
  1700. hp100_page(MAC_CTRL);
  1701. val = hp100_inw(DROPPED) & 0x0fff;
  1702. lp->stats.rx_errors += val;
  1703. lp->stats.rx_over_errors += val;
  1704. val = hp100_inb(CRC);
  1705. lp->stats.rx_errors += val;
  1706. lp->stats.rx_crc_errors += val;
  1707. val = hp100_inb(ABORT);
  1708. lp->stats.tx_errors += val;
  1709. lp->stats.tx_aborted_errors += val;
  1710. hp100_page(PERFORMANCE);
  1711. }
  1712. static void hp100_misc_interrupt(struct net_device *dev)
  1713. {
  1714. #ifdef HP100_DEBUG_B
  1715. int ioaddr = dev->base_addr;
  1716. #endif
  1717. struct hp100_private *lp = netdev_priv(dev);
  1718. #ifdef HP100_DEBUG_B
  1719. int ioaddr = dev->base_addr;
  1720. hp100_outw(0x4216, TRACE);
  1721. printk("hp100: %s: misc_interrupt\n", dev->name);
  1722. #endif
  1723. /* Note: Statistics counters clear when read. */
  1724. lp->stats.rx_errors++;
  1725. lp->stats.tx_errors++;
  1726. }
  1727. static void hp100_clear_stats(struct hp100_private *lp, int ioaddr)
  1728. {
  1729. unsigned long flags;
  1730. #ifdef HP100_DEBUG_B
  1731. hp100_outw(0x4217, TRACE);
  1732. printk("hp100: %s: clear_stats\n", dev->name);
  1733. #endif
  1734. spin_lock_irqsave(&lp->lock, flags);
  1735. hp100_page(MAC_CTRL); /* get all statistics bytes */
  1736. hp100_inw(DROPPED);
  1737. hp100_inb(CRC);
  1738. hp100_inb(ABORT);
  1739. hp100_page(PERFORMANCE);
  1740. spin_unlock_irqrestore(&lp->lock, flags);
  1741. }
  1742. /*
  1743. * multicast setup
  1744. */
  1745. /*
  1746. * Set or clear the multicast filter for this adapter.
  1747. */
  1748. static void hp100_set_multicast_list(struct net_device *dev)
  1749. {
  1750. unsigned long flags;
  1751. int ioaddr = dev->base_addr;
  1752. struct hp100_private *lp = netdev_priv(dev);
  1753. #ifdef HP100_DEBUG_B
  1754. hp100_outw(0x4218, TRACE);
  1755. printk("hp100: %s: set_mc_list\n", dev->name);
  1756. #endif
  1757. spin_lock_irqsave(&lp->lock, flags);
  1758. hp100_ints_off();
  1759. hp100_page(MAC_CTRL);
  1760. hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */
  1761. if (dev->flags & IFF_PROMISC) {
  1762. lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */
  1763. lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */
  1764. memset(&lp->hash_bytes, 0xff, 8);
  1765. } else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
  1766. lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */
  1767. lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */
  1768. #ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */
  1769. if (dev->flags & IFF_ALLMULTI) {
  1770. /* set hash filter to receive all multicast packets */
  1771. memset(&lp->hash_bytes, 0xff, 8);
  1772. } else {
  1773. int i, j, idx;
  1774. u_char *addrs;
  1775. struct dev_mc_list *dmi;
  1776. memset(&lp->hash_bytes, 0x00, 8);
  1777. #ifdef HP100_DEBUG
  1778. printk("hp100: %s: computing hash filter - mc_count = %i\n", dev->name, dev->mc_count);
  1779. #endif
  1780. for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) {
  1781. addrs = dmi->dmi_addr;
  1782. if ((*addrs & 0x01) == 0x01) { /* multicast address? */
  1783. #ifdef HP100_DEBUG
  1784. printk("hp100: %s: multicast = %02x:%02x:%02x:%02x:%02x:%02x, ",
  1785. dev->name, addrs[0], addrs[1], addrs[2],
  1786. addrs[3], addrs[4], addrs[5]);
  1787. #endif
  1788. for (j = idx = 0; j < 6; j++) {
  1789. idx ^= *addrs++ & 0x3f;
  1790. printk(":%02x:", idx);
  1791. }
  1792. #ifdef HP100_DEBUG
  1793. printk("idx = %i\n", idx);
  1794. #endif
  1795. lp->hash_bytes[idx >> 3] |= (1 << (idx & 7));
  1796. }
  1797. }
  1798. }
  1799. #else
  1800. memset(&lp->hash_bytes, 0xff, 8);
  1801. #endif
  1802. } else {
  1803. lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */
  1804. lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */
  1805. memset(&lp->hash_bytes, 0x00, 8);
  1806. }
  1807. if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) ||
  1808. (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) {
  1809. int i;
  1810. hp100_outb(lp->mac2_mode, MAC_CFG_2);
  1811. hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */
  1812. hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */
  1813. hp100_page(MAC_ADDRESS);
  1814. for (i = 0; i < 8; i++)
  1815. hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i);
  1816. #ifdef HP100_DEBUG
  1817. printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
  1818. dev->name, lp->mac1_mode, lp->mac2_mode,
  1819. lp->hash_bytes[0], lp->hash_bytes[1],
  1820. lp->hash_bytes[2], lp->hash_bytes[3],
  1821. lp->hash_bytes[4], lp->hash_bytes[5],
  1822. lp->hash_bytes[6], lp->hash_bytes[7]);
  1823. #endif
  1824. if (lp->lan_type == HP100_LAN_100) {
  1825. #ifdef HP100_DEBUG
  1826. printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name);
  1827. #endif
  1828. lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */
  1829. }
  1830. } else {
  1831. int i;
  1832. u_char old_hash_bytes[8];
  1833. hp100_page(MAC_ADDRESS);
  1834. for (i = 0; i < 8; i++)
  1835. old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i);
  1836. if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) {
  1837. for (i = 0; i < 8; i++)
  1838. hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i);
  1839. #ifdef HP100_DEBUG
  1840. printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
  1841. dev->name, lp->hash_bytes[0],
  1842. lp->hash_bytes[1], lp->hash_bytes[2],
  1843. lp->hash_bytes[3], lp->hash_bytes[4],
  1844. lp->hash_bytes[5], lp->hash_bytes[6],
  1845. lp->hash_bytes[7]);
  1846. #endif
  1847. if (lp->lan_type == HP100_LAN_100) {
  1848. #ifdef HP100_DEBUG
  1849. printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name);
  1850. #endif
  1851. lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */
  1852. }
  1853. }
  1854. }
  1855. hp100_page(MAC_CTRL);
  1856. hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */
  1857. HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */
  1858. hp100_page(PERFORMANCE);
  1859. hp100_ints_on();
  1860. spin_unlock_irqrestore(&lp->lock, flags);
  1861. }
  1862. /*
  1863. * hardware interrupt handling
  1864. */
  1865. static irqreturn_t hp100_interrupt(int irq, void *dev_id)
  1866. {
  1867. struct net_device *dev = (struct net_device *) dev_id;
  1868. struct hp100_private *lp = netdev_priv(dev);
  1869. int ioaddr;
  1870. u_int val;
  1871. if (dev == NULL)
  1872. return IRQ_NONE;
  1873. ioaddr = dev->base_addr;
  1874. spin_lock(&lp->lock);
  1875. hp100_ints_off();
  1876. #ifdef HP100_DEBUG_B
  1877. hp100_outw(0x4219, TRACE);
  1878. #endif
  1879. /* hp100_page( PERFORMANCE ); */
  1880. val = hp100_inw(IRQ_STATUS);
  1881. #ifdef HP100_DEBUG_IRQ
  1882. printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n",
  1883. dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT),
  1884. hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL));
  1885. #endif
  1886. if (val == 0) { /* might be a shared interrupt */
  1887. spin_unlock(&lp->lock);
  1888. hp100_ints_on();
  1889. return IRQ_NONE;
  1890. }
  1891. /* We're only interested in those interrupts we really enabled. */
  1892. /* val &= hp100_inw( IRQ_MASK ); */
  1893. /*
  1894. * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL
  1895. * is considered executed whenever the RX_PDL data structure is no longer
  1896. * needed.
  1897. */
  1898. if (val & HP100_RX_PDL_FILL_COMPL) {
  1899. if (lp->mode == 1)
  1900. hp100_rx_bm(dev);
  1901. else {
  1902. printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name);
  1903. }
  1904. }
  1905. /*
  1906. * The RX_PACKET interrupt is set, when the receive packet counter is
  1907. * non zero. We use this interrupt for receiving in slave mode. In
  1908. * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill
  1909. * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then
  1910. * we somehow have missed a rx_pdl_fill_compl interrupt.
  1911. */
  1912. if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */
  1913. if (lp->mode != 1) /* non busmaster */
  1914. hp100_rx(dev);
  1915. else if (!(val & HP100_RX_PDL_FILL_COMPL)) {
  1916. /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */
  1917. hp100_rx_bm(dev);
  1918. }
  1919. }
  1920. /*
  1921. * Ack. that we have noticed the interrupt and thereby allow next one.
  1922. * Note that this is now done after the slave rx function, since first
  1923. * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt
  1924. * on the J2573.
  1925. */
  1926. hp100_outw(val, IRQ_STATUS);
  1927. /*
  1928. * RX_ERROR is set when a packet is dropped due to no memory resources on
  1929. * the card or when a RCV_ERR occurs.
  1930. * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists
  1931. * only in the 802.3 MAC and happens when 16 collisions occur during a TX
  1932. */
  1933. if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) {
  1934. #ifdef HP100_DEBUG_IRQ
  1935. printk("hp100: %s: TX/RX Error IRQ\n", dev->name);
  1936. #endif
  1937. hp100_update_stats(dev);
  1938. if (lp->mode == 1) {
  1939. hp100_rxfill(dev);
  1940. hp100_clean_txring(dev);
  1941. }
  1942. }
  1943. /*
  1944. * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero.
  1945. */
  1946. if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO)))
  1947. hp100_rxfill(dev);
  1948. /*
  1949. * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire
  1950. * is completed
  1951. */
  1952. if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE)))
  1953. hp100_clean_txring(dev);
  1954. /*
  1955. * MISC_ERROR is set when either the LAN link goes down or a detected
  1956. * bus error occurs.
  1957. */
  1958. if (val & HP100_MISC_ERROR) { /* New for J2585B */
  1959. #ifdef HP100_DEBUG_IRQ
  1960. printk
  1961. ("hp100: %s: Misc. Error Interrupt - Check cabling.\n",
  1962. dev->name);
  1963. #endif
  1964. if (lp->mode == 1) {
  1965. hp100_clean_txring(dev);
  1966. hp100_rxfill(dev);
  1967. }
  1968. hp100_misc_interrupt(dev);
  1969. }
  1970. spin_unlock(&lp->lock);
  1971. hp100_ints_on();
  1972. return IRQ_HANDLED;
  1973. }
  1974. /*
  1975. * some misc functions
  1976. */
  1977. static void hp100_start_interface(struct net_device *dev)
  1978. {
  1979. unsigned long flags;
  1980. int ioaddr = dev->base_addr;
  1981. struct hp100_private *lp = netdev_priv(dev);
  1982. #ifdef HP100_DEBUG_B
  1983. hp100_outw(0x4220, TRACE);
  1984. printk("hp100: %s: hp100_start_interface\n", dev->name);
  1985. #endif
  1986. spin_lock_irqsave(&lp->lock, flags);
  1987. /* Ensure the adapter does not want to request an interrupt when */
  1988. /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */
  1989. hp100_page(PERFORMANCE);
  1990. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  1991. hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */
  1992. hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB,
  1993. OPTION_LSW);
  1994. /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */
  1995. hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW);
  1996. if (lp->mode == 1) {
  1997. /* Make sure BM bit is set... */
  1998. hp100_page(HW_MAP);
  1999. hp100_orb(HP100_BM_MASTER, BM);
  2000. hp100_rxfill(dev);
  2001. } else if (lp->mode == 2) {
  2002. /* Enable memory mapping. Note: Don't do this when busmaster. */
  2003. hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW);
  2004. }
  2005. hp100_page(PERFORMANCE);
  2006. hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */
  2007. hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */
  2008. /* enable a few interrupts: */
  2009. if (lp->mode == 1) { /* busmaster mode */
  2010. hp100_outw(HP100_RX_PDL_FILL_COMPL |
  2011. HP100_RX_PDA_ZERO | HP100_RX_ERROR |
  2012. /* HP100_RX_PACKET | */
  2013. /* HP100_RX_EARLY_INT | */ HP100_SET_HB |
  2014. /* HP100_TX_PDA_ZERO | */
  2015. HP100_TX_COMPLETE |
  2016. /* HP100_MISC_ERROR | */
  2017. HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK);
  2018. } else {
  2019. hp100_outw(HP100_RX_PACKET |
  2020. HP100_RX_ERROR | HP100_SET_HB |
  2021. HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK);
  2022. }
  2023. /* Note : before hp100_set_multicast_list(), because it will play with
  2024. * spinlock itself... Jean II */
  2025. spin_unlock_irqrestore(&lp->lock, flags);
  2026. /* Enable MAC Tx and RX, set MAC modes, ... */
  2027. hp100_set_multicast_list(dev);
  2028. }
  2029. static void hp100_stop_interface(struct net_device *dev)
  2030. {
  2031. struct hp100_private *lp = netdev_priv(dev);
  2032. int ioaddr = dev->base_addr;
  2033. u_int val;
  2034. #ifdef HP100_DEBUG_B
  2035. printk("hp100: %s: hp100_stop_interface\n", dev->name);
  2036. hp100_outw(0x4221, TRACE);
  2037. #endif
  2038. if (lp->mode == 1)
  2039. hp100_BM_shutdown(dev);
  2040. else {
  2041. /* Note: MMAP_DIS will be reenabled by start_interface */
  2042. hp100_outw(HP100_INT_EN | HP100_RESET_LB |
  2043. HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB,
  2044. OPTION_LSW);
  2045. val = hp100_inw(OPTION_LSW);
  2046. hp100_page(MAC_CTRL);
  2047. hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1);
  2048. if (!(val & HP100_HW_RST))
  2049. return; /* If reset, imm. return ... */
  2050. /* ... else: busy wait until idle */
  2051. for (val = 0; val < 6000; val++)
  2052. if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) {
  2053. hp100_page(PERFORMANCE);
  2054. return;
  2055. }
  2056. printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name);
  2057. hp100_page(PERFORMANCE);
  2058. }
  2059. }
  2060. static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr)
  2061. {
  2062. int i;
  2063. int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr;
  2064. #ifdef HP100_DEBUG_B
  2065. hp100_outw(0x4222, TRACE);
  2066. #endif
  2067. hp100_page(EEPROM_CTRL);
  2068. hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL);
  2069. hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL);
  2070. for (i = 0; i < 10000; i++)
  2071. if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD))
  2072. return;
  2073. printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name);
  2074. }
  2075. /* Sense connection status.
  2076. * return values: LAN_10 - Connected to 10Mbit/s network
  2077. * LAN_100 - Connected to 100Mbit/s network
  2078. * LAN_ERR - not connected or 100Mbit/s Hub down
  2079. */
  2080. static int hp100_sense_lan(struct net_device *dev)
  2081. {
  2082. int ioaddr = dev->base_addr;
  2083. u_short val_VG, val_10;
  2084. struct hp100_private *lp = netdev_priv(dev);
  2085. #ifdef HP100_DEBUG_B
  2086. hp100_outw(0x4223, TRACE);
  2087. #endif
  2088. hp100_page(MAC_CTRL);
  2089. val_10 = hp100_inb(10_LAN_CFG_1);
  2090. val_VG = hp100_inb(VG_LAN_CFG_1);
  2091. hp100_page(PERFORMANCE);
  2092. #ifdef HP100_DEBUG
  2093. printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n",
  2094. dev->name, val_VG, val_10);
  2095. #endif
  2096. if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */
  2097. return HP100_LAN_10;
  2098. if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */
  2099. /*
  2100. * This can be overriden by dos utility, so if this has no effect,
  2101. * perhaps you need to download that utility from HP and set card
  2102. * back to "auto detect".
  2103. */
  2104. val_10 |= HP100_AUI_SEL | HP100_LOW_TH;
  2105. hp100_page(MAC_CTRL);
  2106. hp100_outb(val_10, 10_LAN_CFG_1);
  2107. hp100_page(PERFORMANCE);
  2108. return HP100_LAN_COAX;
  2109. }
  2110. /* Those cards don't have a 100 Mbit connector */
  2111. if ( !strcmp(lp->id, "HWP1920") ||
  2112. (lp->pci_dev &&
  2113. lp->pci_dev->vendor == PCI_VENDOR_ID &&
  2114. (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A ||
  2115. lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A)))
  2116. return HP100_LAN_ERR;
  2117. if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */
  2118. return HP100_LAN_100;
  2119. return HP100_LAN_ERR;
  2120. }
  2121. static int hp100_down_vg_link(struct net_device *dev)
  2122. {
  2123. struct hp100_private *lp = netdev_priv(dev);
  2124. int ioaddr = dev->base_addr;
  2125. unsigned long time;
  2126. long savelan, newlan;
  2127. #ifdef HP100_DEBUG_B
  2128. hp100_outw(0x4224, TRACE);
  2129. printk("hp100: %s: down_vg_link\n", dev->name);
  2130. #endif
  2131. hp100_page(MAC_CTRL);
  2132. time = jiffies + (HZ / 4);
  2133. do {
  2134. if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST)
  2135. break;
  2136. if (!in_interrupt())
  2137. schedule_timeout_interruptible(1);
  2138. } while (time_after(time, jiffies));
  2139. if (time_after_eq(jiffies, time)) /* no signal->no logout */
  2140. return 0;
  2141. /* Drop the VG Link by clearing the link up cmd and load addr. */
  2142. hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1);
  2143. hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1);
  2144. /* Conditionally stall for >250ms on Link-Up Status (to go down) */
  2145. time = jiffies + (HZ / 2);
  2146. do {
  2147. if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST))
  2148. break;
  2149. if (!in_interrupt())
  2150. schedule_timeout_interruptible(1);
  2151. } while (time_after(time, jiffies));
  2152. #ifdef HP100_DEBUG
  2153. if (time_after_eq(jiffies, time))
  2154. printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name);
  2155. #endif
  2156. /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */
  2157. /* logout under traffic (even though all the status bits are cleared), */
  2158. /* do this workaround to get the Rev 1 MAC in its idle state */
  2159. if (lp->chip == HP100_CHIPID_LASSEN) {
  2160. /* Reset VG MAC to insure it leaves the logoff state even if */
  2161. /* the Hub is still emitting tones */
  2162. hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1);
  2163. udelay(1500); /* wait for >1ms */
  2164. hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */
  2165. udelay(1500);
  2166. }
  2167. /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */
  2168. /* to get the VG mac to full reset. This is not req.d with later chips */
  2169. /* Note: It will take the between 1 and 2 seconds for the VG mac to be */
  2170. /* selected again! This will be left to the connect hub function to */
  2171. /* perform if desired. */
  2172. if (lp->chip == HP100_CHIPID_LASSEN) {
  2173. /* Have to write to 10 and 100VG control registers simultaneously */
  2174. savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */
  2175. newlan &= ~(HP100_VG_SEL << 16);
  2176. newlan |= (HP100_DOT3_MAC) << 8;
  2177. hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */
  2178. hp100_outl(newlan, 10_LAN_CFG_1);
  2179. /* Conditionally stall for 5sec on VG selected. */
  2180. time = jiffies + (HZ * 5);
  2181. do {
  2182. if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST))
  2183. break;
  2184. if (!in_interrupt())
  2185. schedule_timeout_interruptible(1);
  2186. } while (time_after(time, jiffies));
  2187. hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */
  2188. hp100_outl(savelan, 10_LAN_CFG_1);
  2189. }
  2190. time = jiffies + (3 * HZ); /* Timeout 3s */
  2191. do {
  2192. if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0)
  2193. break;
  2194. if (!in_interrupt())
  2195. schedule_timeout_interruptible(1);
  2196. } while (time_after(time, jiffies));
  2197. if (time_before_eq(time, jiffies)) {
  2198. #ifdef HP100_DEBUG
  2199. printk("hp100: %s: down_vg_link: timeout\n", dev->name);
  2200. #endif
  2201. return -EIO;
  2202. }
  2203. time = jiffies + (2 * HZ); /* This seems to take a while.... */
  2204. do {
  2205. if (!in_interrupt())
  2206. schedule_timeout_interruptible(1);
  2207. } while (time_after(time, jiffies));
  2208. return 0;
  2209. }
  2210. static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin)
  2211. {
  2212. int ioaddr = dev->base_addr;
  2213. struct hp100_private *lp = netdev_priv(dev);
  2214. u_short val = 0;
  2215. unsigned long time;
  2216. int startst;
  2217. #ifdef HP100_DEBUG_B
  2218. hp100_outw(0x4225, TRACE);
  2219. printk("hp100: %s: login_to_vg_hub\n", dev->name);
  2220. #endif
  2221. /* Initiate a login sequence iff VG MAC is enabled and either Load Address
  2222. * bit is zero or the force relogin flag is set (e.g. due to MAC address or
  2223. * promiscuous mode change)
  2224. */
  2225. hp100_page(MAC_CTRL);
  2226. startst = hp100_inb(VG_LAN_CFG_1);
  2227. if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) {
  2228. #ifdef HP100_DEBUG_TRAINING
  2229. printk("hp100: %s: Start training\n", dev->name);
  2230. #endif
  2231. /* Ensure VG Reset bit is 1 (i.e., do not reset) */
  2232. hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1);
  2233. /* If Lassen AND auto-select-mode AND VG tones were sensed on */
  2234. /* entry then temporarily put them into force 100Mbit mode */
  2235. if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST))
  2236. hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2);
  2237. /* Drop the VG link by zeroing Link Up Command and Load Address */
  2238. hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1);
  2239. #ifdef HP100_DEBUG_TRAINING
  2240. printk("hp100: %s: Bring down the link\n", dev->name);
  2241. #endif
  2242. /* Wait for link to drop */
  2243. time = jiffies + (HZ / 10);
  2244. do {
  2245. if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST))
  2246. break;
  2247. if (!in_interrupt())
  2248. schedule_timeout_interruptible(1);
  2249. } while (time_after(time, jiffies));
  2250. /* Start an addressed training and optionally request promiscuous port */
  2251. if ((dev->flags) & IFF_PROMISC) {
  2252. hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2);
  2253. if (lp->chip == HP100_CHIPID_LASSEN)
  2254. hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST);
  2255. } else {
  2256. hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2);
  2257. /* For ETR parts we need to reset the prom. bit in the training
  2258. * register, otherwise promiscious mode won't be disabled.
  2259. */
  2260. if (lp->chip == HP100_CHIPID_LASSEN) {
  2261. hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST);
  2262. }
  2263. }
  2264. /* With ETR parts, frame format request bits can be set. */
  2265. if (lp->chip == HP100_CHIPID_LASSEN)
  2266. hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST);
  2267. hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1);
  2268. /* Note: Next wait could be omitted for Hood and earlier chips under */
  2269. /* certain circumstances */
  2270. /* TODO: check if hood/earlier and skip wait. */
  2271. /* Wait for either short timeout for VG tones or long for login */
  2272. /* Wait for the card hardware to signalise link cable status ok... */
  2273. hp100_page(MAC_CTRL);
  2274. time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */
  2275. do {
  2276. if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST)
  2277. break;
  2278. if (!in_interrupt())
  2279. schedule_timeout_interruptible(1);
  2280. } while (time_before(jiffies, time));
  2281. if (time_after_eq(jiffies, time)) {
  2282. #ifdef HP100_DEBUG_TRAINING
  2283. printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name);
  2284. #endif
  2285. } else {
  2286. #ifdef HP100_DEBUG_TRAINING
  2287. printk
  2288. ("hp100: %s: HUB tones detected. Trying to train.\n",
  2289. dev->name);
  2290. #endif
  2291. time = jiffies + (2 * HZ); /* again a timeout */
  2292. do {
  2293. val = hp100_inb(VG_LAN_CFG_1);
  2294. if ((val & (HP100_LINK_UP_ST))) {
  2295. #ifdef HP100_DEBUG_TRAINING
  2296. printk("hp100: %s: Passed training.\n", dev->name);
  2297. #endif
  2298. break;
  2299. }
  2300. if (!in_interrupt())
  2301. schedule_timeout_interruptible(1);
  2302. } while (time_after(time, jiffies));
  2303. }
  2304. /* If LINK_UP_ST is set, then we are logged into the hub. */
  2305. if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) {
  2306. #ifdef HP100_DEBUG_TRAINING
  2307. printk("hp100: %s: Successfully logged into the HUB.\n", dev->name);
  2308. if (lp->chip == HP100_CHIPID_LASSEN) {
  2309. val = hp100_inw(TRAIN_ALLOW);
  2310. printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ",
  2311. dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre");
  2312. printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre");
  2313. printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3");
  2314. }
  2315. #endif
  2316. } else {
  2317. /* If LINK_UP_ST is not set, login was not successful */
  2318. printk("hp100: %s: Problem logging into the HUB.\n", dev->name);
  2319. if (lp->chip == HP100_CHIPID_LASSEN) {
  2320. /* Check allowed Register to find out why there is a problem. */
  2321. val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */
  2322. #ifdef HP100_DEBUG_TRAINING
  2323. printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val);
  2324. #endif
  2325. if (val & HP100_MALLOW_ACCDENIED)
  2326. printk("hp100: %s: HUB access denied.\n", dev->name);
  2327. if (val & HP100_MALLOW_CONFIGURE)
  2328. printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name);
  2329. if (val & HP100_MALLOW_DUPADDR)
  2330. printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name);
  2331. }
  2332. }
  2333. /* If we have put the chip into forced 100 Mbit mode earlier, go back */
  2334. /* to auto-select mode */
  2335. if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) {
  2336. hp100_page(MAC_CTRL);
  2337. hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2);
  2338. }
  2339. val = hp100_inb(VG_LAN_CFG_1);
  2340. /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */
  2341. hp100_page(PERFORMANCE);
  2342. hp100_outw(HP100_MISC_ERROR, IRQ_STATUS);
  2343. if (val & HP100_LINK_UP_ST)
  2344. return (0); /* login was ok */
  2345. else {
  2346. printk("hp100: %s: Training failed.\n", dev->name);
  2347. hp100_down_vg_link(dev);
  2348. return -EIO;
  2349. }
  2350. }
  2351. /* no forced relogin & already link there->no training. */
  2352. return -EIO;
  2353. }
  2354. static void hp100_cascade_reset(struct net_device *dev, u_short enable)
  2355. {
  2356. int ioaddr = dev->base_addr;
  2357. struct hp100_private *lp = netdev_priv(dev);
  2358. #ifdef HP100_DEBUG_B
  2359. hp100_outw(0x4226, TRACE);
  2360. printk("hp100: %s: cascade_reset\n", dev->name);
  2361. #endif
  2362. if (enable) {
  2363. hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW);
  2364. if (lp->chip == HP100_CHIPID_LASSEN) {
  2365. /* Lassen requires a PCI transmit fifo reset */
  2366. hp100_page(HW_MAP);
  2367. hp100_andb(~HP100_PCI_RESET, PCICTRL2);
  2368. hp100_orb(HP100_PCI_RESET, PCICTRL2);
  2369. /* Wait for min. 300 ns */
  2370. /* we can't use jiffies here, because it may be */
  2371. /* that we have disabled the timer... */
  2372. udelay(400);
  2373. hp100_andb(~HP100_PCI_RESET, PCICTRL2);
  2374. hp100_page(PERFORMANCE);
  2375. }
  2376. } else { /* bring out of reset */
  2377. hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW);
  2378. udelay(400);
  2379. hp100_page(PERFORMANCE);
  2380. }
  2381. }
  2382. #ifdef HP100_DEBUG
  2383. void hp100_RegisterDump(struct net_device *dev)
  2384. {
  2385. int ioaddr = dev->base_addr;
  2386. int Page;
  2387. int Register;
  2388. /* Dump common registers */
  2389. printk("hp100: %s: Cascade Register Dump\n", dev->name);
  2390. printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID));
  2391. printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING));
  2392. printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW));
  2393. printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW));
  2394. /* Dump paged registers */
  2395. for (Page = 0; Page < 8; Page++) {
  2396. /* Dump registers */
  2397. printk("page: 0x%.2x\n", Page);
  2398. outw(Page, ioaddr + 0x02);
  2399. for (Register = 0x8; Register < 0x22; Register += 2) {
  2400. /* Display Register contents except data port */
  2401. if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) {
  2402. printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register));
  2403. }
  2404. }
  2405. }
  2406. hp100_page(PERFORMANCE);
  2407. }
  2408. #endif
  2409. static void cleanup_dev(struct net_device *d)
  2410. {
  2411. struct hp100_private *p = netdev_priv(d);
  2412. unregister_netdev(d);
  2413. release_region(d->base_addr, HP100_REGION_SIZE);
  2414. if (p->mode == 1) /* busmaster */
  2415. pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f,
  2416. p->page_vaddr_algn,
  2417. virt_to_whatever(d, p->page_vaddr_algn));
  2418. if (p->mem_ptr_virt)
  2419. iounmap(p->mem_ptr_virt);
  2420. free_netdev(d);
  2421. }
  2422. #ifdef CONFIG_EISA
  2423. static int __init hp100_eisa_probe (struct device *gendev)
  2424. {
  2425. struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
  2426. struct eisa_device *edev = to_eisa_device(gendev);
  2427. int err;
  2428. if (!dev)
  2429. return -ENOMEM;
  2430. SET_MODULE_OWNER(dev);
  2431. SET_NETDEV_DEV(dev, &edev->dev);
  2432. err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL);
  2433. if (err)
  2434. goto out1;
  2435. #ifdef HP100_DEBUG
  2436. printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name,
  2437. dev->base_addr);
  2438. #endif
  2439. gendev->driver_data = dev;
  2440. return 0;
  2441. out1:
  2442. free_netdev(dev);
  2443. return err;
  2444. }
  2445. static int __devexit hp100_eisa_remove (struct device *gendev)
  2446. {
  2447. struct net_device *dev = gendev->driver_data;
  2448. cleanup_dev(dev);
  2449. return 0;
  2450. }
  2451. static struct eisa_driver hp100_eisa_driver = {
  2452. .id_table = hp100_eisa_tbl,
  2453. .driver = {
  2454. .name = "hp100",
  2455. .probe = hp100_eisa_probe,
  2456. .remove = __devexit_p (hp100_eisa_remove),
  2457. }
  2458. };
  2459. #endif
  2460. #ifdef CONFIG_PCI
  2461. static int __devinit hp100_pci_probe (struct pci_dev *pdev,
  2462. const struct pci_device_id *ent)
  2463. {
  2464. struct net_device *dev;
  2465. int ioaddr;
  2466. u_short pci_command;
  2467. int err;
  2468. if (pci_enable_device(pdev))
  2469. return -ENODEV;
  2470. dev = alloc_etherdev(sizeof(struct hp100_private));
  2471. if (!dev) {
  2472. err = -ENOMEM;
  2473. goto out0;
  2474. }
  2475. SET_MODULE_OWNER(dev);
  2476. SET_NETDEV_DEV(dev, &pdev->dev);
  2477. pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
  2478. if (!(pci_command & PCI_COMMAND_IO)) {
  2479. #ifdef HP100_DEBUG
  2480. printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name);
  2481. #endif
  2482. pci_command |= PCI_COMMAND_IO;
  2483. pci_write_config_word(pdev, PCI_COMMAND, pci_command);
  2484. }
  2485. if (!(pci_command & PCI_COMMAND_MASTER)) {
  2486. #ifdef HP100_DEBUG
  2487. printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name);
  2488. #endif
  2489. pci_command |= PCI_COMMAND_MASTER;
  2490. pci_write_config_word(pdev, PCI_COMMAND, pci_command);
  2491. }
  2492. ioaddr = pci_resource_start(pdev, 0);
  2493. err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev);
  2494. if (err)
  2495. goto out1;
  2496. #ifdef HP100_DEBUG
  2497. printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr);
  2498. #endif
  2499. pci_set_drvdata(pdev, dev);
  2500. return 0;
  2501. out1:
  2502. free_netdev(dev);
  2503. out0:
  2504. pci_disable_device(pdev);
  2505. return err;
  2506. }
  2507. static void __devexit hp100_pci_remove (struct pci_dev *pdev)
  2508. {
  2509. struct net_device *dev = pci_get_drvdata(pdev);
  2510. cleanup_dev(dev);
  2511. pci_disable_device(pdev);
  2512. }
  2513. static struct pci_driver hp100_pci_driver = {
  2514. .name = "hp100",
  2515. .id_table = hp100_pci_tbl,
  2516. .probe = hp100_pci_probe,
  2517. .remove = __devexit_p(hp100_pci_remove),
  2518. };
  2519. #endif
  2520. /*
  2521. * module section
  2522. */
  2523. MODULE_LICENSE("GPL");
  2524. MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, "
  2525. "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>");
  2526. MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters");
  2527. /*
  2528. * Note: to register three isa devices, use:
  2529. * option hp100 hp100_port=0,0,0
  2530. * to register one card at io 0x280 as eth239, use:
  2531. * option hp100 hp100_port=0x280
  2532. */
  2533. #if defined(MODULE) && defined(CONFIG_ISA)
  2534. #define HP100_DEVICES 5
  2535. /* Parameters set by insmod */
  2536. static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 };
  2537. module_param_array(hp100_port, int, NULL, 0);
  2538. /* List of devices */
  2539. static struct net_device *hp100_devlist[HP100_DEVICES];
  2540. static int __init hp100_isa_init(void)
  2541. {
  2542. struct net_device *dev;
  2543. int i, err, cards = 0;
  2544. /* Don't autoprobe ISA bus */
  2545. if (hp100_port[0] == 0)
  2546. return -ENODEV;
  2547. /* Loop on all possible base addresses */
  2548. for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) {
  2549. dev = alloc_etherdev(sizeof(struct hp100_private));
  2550. if (!dev) {
  2551. printk(KERN_WARNING "hp100: no memory for network device\n");
  2552. while (cards > 0)
  2553. cleanup_dev(hp100_devlist[--cards]);
  2554. return -ENOMEM;
  2555. }
  2556. SET_MODULE_OWNER(dev);
  2557. err = hp100_isa_probe(dev, hp100_port[i]);
  2558. if (!err)
  2559. hp100_devlist[cards++] = dev;
  2560. else
  2561. free_netdev(dev);
  2562. }
  2563. return cards > 0 ? 0 : -ENODEV;
  2564. }
  2565. static void __exit hp100_isa_cleanup(void)
  2566. {
  2567. int i;
  2568. for (i = 0; i < HP100_DEVICES; i++) {
  2569. struct net_device *dev = hp100_devlist[i];
  2570. if (dev)
  2571. cleanup_dev(dev);
  2572. }
  2573. }
  2574. #else
  2575. #define hp100_isa_init() (0)
  2576. #define hp100_isa_cleanup() do { } while(0)
  2577. #endif
  2578. static int __init hp100_module_init(void)
  2579. {
  2580. int err;
  2581. err = hp100_isa_init();
  2582. if (err && err != -ENODEV)
  2583. goto out;
  2584. #ifdef CONFIG_EISA
  2585. err = eisa_driver_register(&hp100_eisa_driver);
  2586. if (err && err != -ENODEV)
  2587. goto out2;
  2588. #endif
  2589. #ifdef CONFIG_PCI
  2590. err = pci_register_driver(&hp100_pci_driver);
  2591. if (err && err != -ENODEV)
  2592. goto out3;
  2593. #endif
  2594. out:
  2595. return err;
  2596. out3:
  2597. #ifdef CONFIG_EISA
  2598. eisa_driver_unregister (&hp100_eisa_driver);
  2599. out2:
  2600. #endif
  2601. hp100_isa_cleanup();
  2602. goto out;
  2603. }
  2604. static void __exit hp100_module_exit(void)
  2605. {
  2606. hp100_isa_cleanup();
  2607. #ifdef CONFIG_EISA
  2608. eisa_driver_unregister (&hp100_eisa_driver);
  2609. #endif
  2610. #ifdef CONFIG_PCI
  2611. pci_unregister_driver (&hp100_pci_driver);
  2612. #endif
  2613. }
  2614. module_init(hp100_module_init)
  2615. module_exit(hp100_module_exit)
  2616. /*
  2617. * Local variables:
  2618. * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c hp100.c"
  2619. * c-indent-level: 2
  2620. * tab-width: 8
  2621. * End:
  2622. */