Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2 | ** hp100.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | ** HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters |
| 4 | ** |
| 5 | ** $Id: hp100.c,v 1.58 2001/09/24 18:03:01 perex Exp perex $ |
| 6 | ** |
| 7 | ** Based on the HP100 driver written by Jaroslav Kysela <perex@jcu.cz> |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 8 | ** Extended for new busmaster capable chipsets by |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | ** Siegfried "Frieder" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de> |
| 10 | ** |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 11 | ** Maintained by: Jaroslav Kysela <perex@perex.cz> |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 12 | ** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | ** This driver has only been tested with |
| 14 | ** -- HP J2585B 10/100 Mbit/s PCI Busmaster |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 15 | ** -- HP J2585A 10/100 Mbit/s PCI |
Pavel Machek | 31df7b7 | 2005-05-01 08:58:52 -0700 | [diff] [blame] | 16 | ** -- HP J2970A 10 Mbit/s PCI Combo 10base-T/BNC |
| 17 | ** -- HP J2973A 10 Mbit/s PCI 10base-T |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 21 | ** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 68 | ** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 76 | ** - little changes in hp100_sense_lan routine |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | ** - added support for Coax and AUI (J2970) |
| 78 | ** - fix for multiple cards and hp100_mode parameter (insmod) |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 79 | ** - fix for shared IRQ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | ** |
| 81 | ** 1.52 -> 1.53 |
| 82 | ** - fixed bug in multicast support |
| 83 | ** |
| 84 | */ |
| 85 | |
| 86 | #define HP100_DEFAULT_PRIORITY_TX 0 |
| 87 | |
| 88 | #undef HP100_DEBUG |
| 89 | #undef HP100_DEBUG_B /* Trace */ |
| 90 | #undef HP100_DEBUG_BM /* Debug busmaster code (PDL stuff) */ |
| 91 | |
| 92 | #undef HP100_DEBUG_TRAINING /* Debug login-to-hub procedure */ |
| 93 | #undef HP100_DEBUG_TX |
| 94 | #undef HP100_DEBUG_IRQ |
| 95 | #undef HP100_DEBUG_RX |
| 96 | |
| 97 | #undef HP100_MULTICAST_FILTER /* Need to be debugged... */ |
| 98 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | #include <linux/module.h> |
| 100 | #include <linux/kernel.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 101 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | #include <linux/string.h> |
| 103 | #include <linux/errno.h> |
| 104 | #include <linux/ioport.h> |
| 105 | #include <linux/slab.h> |
| 106 | #include <linux/interrupt.h> |
| 107 | #include <linux/eisa.h> |
| 108 | #include <linux/pci.h> |
Domen Puncer | 1e7f0bd | 2005-06-26 18:22:14 -0400 | [diff] [blame] | 109 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | #include <linux/spinlock.h> |
| 111 | #include <linux/netdevice.h> |
| 112 | #include <linux/etherdevice.h> |
| 113 | #include <linux/skbuff.h> |
| 114 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | #include <linux/delay.h> |
| 116 | #include <linux/init.h> |
| 117 | #include <linux/bitops.h> |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 118 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
| 120 | #include <asm/io.h> |
| 121 | |
| 122 | #include "hp100.h" |
| 123 | |
| 124 | /* |
| 125 | * defines |
| 126 | */ |
| 127 | |
| 128 | #define HP100_BUS_ISA 0 |
| 129 | #define HP100_BUS_EISA 1 |
| 130 | #define HP100_BUS_PCI 2 |
| 131 | |
| 132 | #define HP100_REGION_SIZE 0x20 /* for ioports */ |
| 133 | #define HP100_SIG_LEN 8 /* same as EISA_SIG_LEN */ |
| 134 | |
| 135 | #define HP100_MAX_PACKET_SIZE (1536+4) |
| 136 | #define HP100_MIN_PACKET_SIZE 60 |
| 137 | |
| 138 | #ifndef HP100_DEFAULT_RX_RATIO |
| 139 | /* default - 75% onboard memory on the card are used for RX packets */ |
| 140 | #define HP100_DEFAULT_RX_RATIO 75 |
| 141 | #endif |
| 142 | |
| 143 | #ifndef HP100_DEFAULT_PRIORITY_TX |
| 144 | /* default - don't enable transmit outgoing packets as priority */ |
| 145 | #define HP100_DEFAULT_PRIORITY_TX 0 |
| 146 | #endif |
| 147 | |
| 148 | /* |
| 149 | * structures |
| 150 | */ |
| 151 | |
| 152 | struct hp100_private { |
| 153 | spinlock_t lock; |
| 154 | char id[HP100_SIG_LEN]; |
| 155 | u_short chip; |
| 156 | u_short soft_model; |
| 157 | u_int memory_size; |
| 158 | u_int virt_memory_size; |
| 159 | u_short rx_ratio; /* 1 - 99 */ |
| 160 | u_short priority_tx; /* != 0 - priority tx */ |
| 161 | u_short mode; /* PIO, Shared Mem or Busmaster */ |
| 162 | u_char bus; |
| 163 | struct pci_dev *pci_dev; |
| 164 | short mem_mapped; /* memory mapped access */ |
| 165 | void __iomem *mem_ptr_virt; /* virtual memory mapped area, maybe NULL */ |
| 166 | unsigned long mem_ptr_phys; /* physical memory mapped area */ |
| 167 | short lan_type; /* 10Mb/s, 100Mb/s or -1 (error) */ |
| 168 | int hub_status; /* was login to hub successful? */ |
| 169 | u_char mac1_mode; |
| 170 | u_char mac2_mode; |
| 171 | u_char hash_bytes[8]; |
| 172 | struct net_device_stats stats; |
| 173 | |
| 174 | /* Rings for busmaster mode: */ |
| 175 | hp100_ring_t *rxrhead; /* Head (oldest) index into rxring */ |
| 176 | hp100_ring_t *rxrtail; /* Tail (newest) index into rxring */ |
| 177 | hp100_ring_t *txrhead; /* Head (oldest) index into txring */ |
| 178 | hp100_ring_t *txrtail; /* Tail (newest) index into txring */ |
| 179 | |
| 180 | hp100_ring_t rxring[MAX_RX_PDL]; |
| 181 | hp100_ring_t txring[MAX_TX_PDL]; |
| 182 | |
| 183 | u_int *page_vaddr_algn; /* Aligned virtual address of allocated page */ |
| 184 | u_long whatever_offset; /* Offset to bus/phys/dma address */ |
| 185 | int rxrcommit; /* # Rx PDLs commited to adapter */ |
| 186 | int txrcommit; /* # Tx PDLs commited to adapter */ |
| 187 | }; |
| 188 | |
| 189 | /* |
| 190 | * variables |
| 191 | */ |
Jeff Garzik | 7525d4b | 2006-10-02 21:08:22 -0400 | [diff] [blame] | 192 | #ifdef CONFIG_ISA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | static const char *hp100_isa_tbl[] = { |
| 194 | "HWPF150", /* HP J2573 rev A */ |
| 195 | "HWP1950", /* HP J2573 */ |
| 196 | }; |
Jeff Garzik | 2c81fbc | 2006-10-01 07:32:20 -0400 | [diff] [blame] | 197 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
| 199 | #ifdef CONFIG_EISA |
| 200 | static struct eisa_device_id hp100_eisa_tbl[] = { |
| 201 | { "HWPF180" }, /* HP J2577 rev A */ |
| 202 | { "HWP1920" }, /* HP 27248B */ |
| 203 | { "HWP1940" }, /* HP J2577 */ |
| 204 | { "HWP1990" }, /* HP J2577 */ |
| 205 | { "CPX0301" }, /* ReadyLink ENET100-VG4 */ |
| 206 | { "CPX0401" }, /* FreedomLine 100/VG */ |
| 207 | { "" } /* Mandatory final entry ! */ |
| 208 | }; |
| 209 | MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl); |
| 210 | #endif |
| 211 | |
| 212 | #ifdef CONFIG_PCI |
| 213 | static struct pci_device_id hp100_pci_tbl[] = { |
| 214 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,}, |
| 215 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,}, |
| 216 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2970A, PCI_ANY_ID, PCI_ANY_ID,}, |
| 217 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2973A, PCI_ANY_ID, PCI_ANY_ID,}, |
| 218 | {PCI_VENDOR_ID_COMPEX, PCI_DEVICE_ID_COMPEX_ENET100VG4, PCI_ANY_ID, PCI_ANY_ID,}, |
| 219 | {PCI_VENDOR_ID_COMPEX2, PCI_DEVICE_ID_COMPEX2_100VG, PCI_ANY_ID, PCI_ANY_ID,}, |
| 220 | /* {PCI_VENDOR_ID_KTI, PCI_DEVICE_ID_KTI_DP200, PCI_ANY_ID, PCI_ANY_ID }, */ |
| 221 | {} /* Terminating entry */ |
| 222 | }; |
| 223 | MODULE_DEVICE_TABLE(pci, hp100_pci_tbl); |
| 224 | #endif |
| 225 | |
| 226 | static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO; |
| 227 | static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX; |
| 228 | static int hp100_mode = 1; |
| 229 | |
| 230 | module_param(hp100_rx_ratio, int, 0); |
| 231 | module_param(hp100_priority_tx, int, 0); |
| 232 | module_param(hp100_mode, int, 0); |
| 233 | |
| 234 | /* |
| 235 | * prototypes |
| 236 | */ |
| 237 | |
| 238 | static int hp100_probe1(struct net_device *dev, int ioaddr, u_char bus, |
| 239 | struct pci_dev *pci_dev); |
| 240 | |
| 241 | |
| 242 | static int hp100_open(struct net_device *dev); |
| 243 | static int hp100_close(struct net_device *dev); |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 244 | static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, |
| 245 | struct net_device *dev); |
| 246 | static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, |
| 247 | struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | static void hp100_rx(struct net_device *dev); |
| 249 | static struct net_device_stats *hp100_get_stats(struct net_device *dev); |
| 250 | static void hp100_misc_interrupt(struct net_device *dev); |
| 251 | static void hp100_update_stats(struct net_device *dev); |
| 252 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr); |
| 253 | static void hp100_set_multicast_list(struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 254 | static irqreturn_t hp100_interrupt(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | static void hp100_start_interface(struct net_device *dev); |
| 256 | static void hp100_stop_interface(struct net_device *dev); |
| 257 | static void hp100_load_eeprom(struct net_device *dev, u_short ioaddr); |
| 258 | static int hp100_sense_lan(struct net_device *dev); |
| 259 | static int hp100_login_to_vg_hub(struct net_device *dev, |
| 260 | u_short force_relogin); |
| 261 | static int hp100_down_vg_link(struct net_device *dev); |
| 262 | static void hp100_cascade_reset(struct net_device *dev, u_short enable); |
| 263 | static void hp100_BM_shutdown(struct net_device *dev); |
| 264 | static void hp100_mmuinit(struct net_device *dev); |
| 265 | static void hp100_init_pdls(struct net_device *dev); |
| 266 | static int hp100_init_rxpdl(struct net_device *dev, |
| 267 | register hp100_ring_t * ringptr, |
| 268 | register u_int * pdlptr); |
| 269 | static int hp100_init_txpdl(struct net_device *dev, |
| 270 | register hp100_ring_t * ringptr, |
| 271 | register u_int * pdlptr); |
| 272 | static void hp100_rxfill(struct net_device *dev); |
| 273 | static void hp100_hwinit(struct net_device *dev); |
| 274 | static void hp100_clean_txring(struct net_device *dev); |
| 275 | #ifdef HP100_DEBUG |
| 276 | static void hp100_RegisterDump(struct net_device *dev); |
| 277 | #endif |
| 278 | |
| 279 | /* Conversion to new PCI API : |
| 280 | * Convert an address in a kernel buffer to a bus/phys/dma address. |
| 281 | * This work *only* for memory fragments part of lp->page_vaddr, |
| 282 | * because it was properly DMA allocated via pci_alloc_consistent(), |
Adrian Bunk | 943ffb5 | 2006-01-10 00:10:13 +0100 | [diff] [blame] | 283 | * so we just need to "retrieve" the original mapping to bus/phys/dma |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | * address - Jean II */ |
| 285 | static inline dma_addr_t virt_to_whatever(struct net_device *dev, u32 * ptr) |
| 286 | { |
| 287 | struct hp100_private *lp = netdev_priv(dev); |
| 288 | return ((u_long) ptr) + lp->whatever_offset; |
| 289 | } |
| 290 | |
| 291 | static inline u_int pdl_map_data(struct hp100_private *lp, void *data) |
| 292 | { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 293 | return pci_map_single(lp->pci_dev, data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); |
| 295 | } |
| 296 | |
| 297 | /* TODO: This function should not really be needed in a good design... */ |
| 298 | static void wait(void) |
| 299 | { |
| 300 | mdelay(1); |
| 301 | } |
| 302 | |
| 303 | /* |
| 304 | * probe functions |
| 305 | * These functions should - if possible - avoid doing write operations |
| 306 | * since this could cause problems when the card is not installed. |
| 307 | */ |
| 308 | |
| 309 | /* |
| 310 | * Read board id and convert to string. |
| 311 | * Effectively same code as decode_eisa_sig |
| 312 | */ |
| 313 | static __devinit const char *hp100_read_id(int ioaddr) |
| 314 | { |
| 315 | int i; |
| 316 | static char str[HP100_SIG_LEN]; |
| 317 | unsigned char sig[4], sum; |
| 318 | unsigned short rev; |
| 319 | |
| 320 | hp100_page(ID_MAC_ADDR); |
| 321 | sum = 0; |
| 322 | for (i = 0; i < 4; i++) { |
| 323 | sig[i] = hp100_inb(BOARD_ID + i); |
| 324 | sum += sig[i]; |
| 325 | } |
| 326 | |
| 327 | sum += hp100_inb(BOARD_ID + i); |
| 328 | if (sum != 0xff) |
| 329 | return NULL; /* bad checksum */ |
| 330 | |
| 331 | str[0] = ((sig[0] >> 2) & 0x1f) + ('A' - 1); |
| 332 | str[1] = (((sig[0] & 3) << 3) | (sig[1] >> 5)) + ('A' - 1); |
| 333 | str[2] = (sig[1] & 0x1f) + ('A' - 1); |
| 334 | rev = (sig[2] << 8) | sig[3]; |
| 335 | sprintf(str + 3, "%04X", rev); |
| 336 | |
| 337 | return str; |
| 338 | } |
| 339 | |
Jeff Garzik | 7525d4b | 2006-10-02 21:08:22 -0400 | [diff] [blame] | 340 | #ifdef CONFIG_ISA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | static __init int hp100_isa_probe1(struct net_device *dev, int ioaddr) |
| 342 | { |
| 343 | const char *sig; |
| 344 | int i; |
| 345 | |
| 346 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) |
| 347 | goto err; |
| 348 | |
| 349 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) { |
| 350 | release_region(ioaddr, HP100_REGION_SIZE); |
| 351 | goto err; |
| 352 | } |
| 353 | |
| 354 | sig = hp100_read_id(ioaddr); |
| 355 | release_region(ioaddr, HP100_REGION_SIZE); |
| 356 | |
| 357 | if (sig == NULL) |
| 358 | goto err; |
| 359 | |
| 360 | for (i = 0; i < ARRAY_SIZE(hp100_isa_tbl); i++) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 361 | if (!strcmp(hp100_isa_tbl[i], sig)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | break; |
| 363 | |
| 364 | } |
| 365 | |
| 366 | if (i < ARRAY_SIZE(hp100_isa_tbl)) |
| 367 | return hp100_probe1(dev, ioaddr, HP100_BUS_ISA, NULL); |
| 368 | err: |
| 369 | return -ENODEV; |
| 370 | |
| 371 | } |
| 372 | /* |
| 373 | * Probe for ISA board. |
| 374 | * EISA and PCI are handled by device infrastructure. |
| 375 | */ |
| 376 | |
| 377 | static int __init hp100_isa_probe(struct net_device *dev, int addr) |
| 378 | { |
| 379 | int err = -ENODEV; |
| 380 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 381 | /* Probe for a specific ISA address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | if (addr > 0xff && addr < 0x400) |
| 383 | err = hp100_isa_probe1(dev, addr); |
| 384 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 385 | else if (addr != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | err = -ENXIO; |
| 387 | |
| 388 | else { |
| 389 | /* Probe all ISA possible port regions */ |
| 390 | for (addr = 0x100; addr < 0x400; addr += 0x20) { |
| 391 | err = hp100_isa_probe1(dev, addr); |
| 392 | if (!err) |
| 393 | break; |
| 394 | } |
| 395 | } |
| 396 | return err; |
| 397 | } |
Jeff Garzik | 7525d4b | 2006-10-02 21:08:22 -0400 | [diff] [blame] | 398 | #endif /* CONFIG_ISA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Jeff Garzik | 7525d4b | 2006-10-02 21:08:22 -0400 | [diff] [blame] | 400 | #if !defined(MODULE) && defined(CONFIG_ISA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | struct net_device * __init hp100_probe(int unit) |
| 402 | { |
| 403 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); |
| 404 | int err; |
| 405 | |
| 406 | if (!dev) |
| 407 | return ERR_PTR(-ENODEV); |
| 408 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | #ifdef HP100_DEBUG_B |
| 410 | hp100_outw(0x4200, TRACE); |
| 411 | printk("hp100: %s: probe\n", dev->name); |
| 412 | #endif |
| 413 | |
| 414 | if (unit >= 0) { |
| 415 | sprintf(dev->name, "eth%d", unit); |
| 416 | netdev_boot_setup_check(dev); |
| 417 | } |
| 418 | |
| 419 | err = hp100_isa_probe(dev, dev->base_addr); |
| 420 | if (err) |
| 421 | goto out; |
| 422 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | return dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | out: |
| 425 | free_netdev(dev); |
| 426 | return ERR_PTR(err); |
| 427 | } |
Jeff Garzik | 7525d4b | 2006-10-02 21:08:22 -0400 | [diff] [blame] | 428 | #endif /* !MODULE && CONFIG_ISA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | |
Stephen Hemminger | d9d6f46 | 2009-01-07 18:13:49 -0800 | [diff] [blame] | 430 | static const struct net_device_ops hp100_bm_netdev_ops = { |
| 431 | .ndo_open = hp100_open, |
| 432 | .ndo_stop = hp100_close, |
| 433 | .ndo_start_xmit = hp100_start_xmit_bm, |
| 434 | .ndo_get_stats = hp100_get_stats, |
| 435 | .ndo_set_multicast_list = hp100_set_multicast_list, |
| 436 | .ndo_change_mtu = eth_change_mtu, |
| 437 | .ndo_set_mac_address = eth_mac_addr, |
| 438 | .ndo_validate_addr = eth_validate_addr, |
| 439 | }; |
| 440 | |
| 441 | static const struct net_device_ops hp100_netdev_ops = { |
| 442 | .ndo_open = hp100_open, |
| 443 | .ndo_stop = hp100_close, |
| 444 | .ndo_start_xmit = hp100_start_xmit, |
| 445 | .ndo_get_stats = hp100_get_stats, |
| 446 | .ndo_set_multicast_list = hp100_set_multicast_list, |
| 447 | .ndo_change_mtu = eth_change_mtu, |
| 448 | .ndo_set_mac_address = eth_mac_addr, |
| 449 | .ndo_validate_addr = eth_validate_addr, |
| 450 | }; |
| 451 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | static int __devinit hp100_probe1(struct net_device *dev, int ioaddr, |
| 453 | u_char bus, struct pci_dev *pci_dev) |
| 454 | { |
| 455 | int i; |
| 456 | int err = -ENODEV; |
| 457 | const char *eid; |
| 458 | u_int chip; |
| 459 | u_char uc; |
| 460 | u_int memory_size = 0, virt_memory_size = 0; |
| 461 | u_short local_mode, lsw; |
| 462 | short mem_mapped; |
| 463 | unsigned long mem_ptr_phys; |
| 464 | void __iomem *mem_ptr_virt; |
| 465 | struct hp100_private *lp; |
| 466 | |
| 467 | #ifdef HP100_DEBUG_B |
| 468 | hp100_outw(0x4201, TRACE); |
| 469 | printk("hp100: %s: probe1\n", dev->name); |
| 470 | #endif |
| 471 | |
| 472 | /* memory region for programmed i/o */ |
| 473 | if (!request_region(ioaddr, HP100_REGION_SIZE, "hp100")) |
| 474 | goto out1; |
| 475 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 476 | if (hp100_inw(HW_ID) != HP100_HW_ID_CASCADE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | goto out2; |
| 478 | |
| 479 | chip = hp100_inw(PAGING) & HP100_CHIPID_MASK; |
| 480 | #ifdef HP100_DEBUG |
| 481 | if (chip == HP100_CHIPID_SHASTA) |
| 482 | printk("hp100: %s: Shasta Chip detected. (This is a pre 802.12 chip)\n", dev->name); |
| 483 | else if (chip == HP100_CHIPID_RAINIER) |
| 484 | printk("hp100: %s: Rainier Chip detected. (This is a pre 802.12 chip)\n", dev->name); |
| 485 | else if (chip == HP100_CHIPID_LASSEN) |
| 486 | printk("hp100: %s: Lassen Chip detected.\n", dev->name); |
| 487 | else |
| 488 | printk("hp100: %s: Warning: Unknown CASCADE chip (id=0x%.4x).\n", dev->name, chip); |
| 489 | #endif |
| 490 | |
| 491 | dev->base_addr = ioaddr; |
| 492 | |
| 493 | eid = hp100_read_id(ioaddr); |
| 494 | if (eid == NULL) { /* bad checksum? */ |
| 495 | printk(KERN_WARNING "hp100_probe: bad ID checksum at base port 0x%x\n", ioaddr); |
| 496 | goto out2; |
| 497 | } |
| 498 | |
| 499 | hp100_page(ID_MAC_ADDR); |
| 500 | for (i = uc = 0; i < 7; i++) |
| 501 | uc += hp100_inb(LAN_ADDR + i); |
| 502 | if (uc != 0xff) { |
| 503 | printk(KERN_WARNING "hp100_probe: bad lan address checksum at port 0x%x)\n", ioaddr); |
| 504 | err = -EIO; |
| 505 | goto out2; |
| 506 | } |
| 507 | |
| 508 | /* Make sure, that all registers are correctly updated... */ |
| 509 | |
| 510 | hp100_load_eeprom(dev, ioaddr); |
| 511 | wait(); |
| 512 | |
| 513 | /* |
| 514 | * Determine driver operation mode |
| 515 | * |
| 516 | * Use the variable "hp100_mode" upon insmod or as kernel parameter to |
| 517 | * force driver modes: |
| 518 | * hp100_mode=1 -> default, use busmaster mode if configured. |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 519 | * hp100_mode=2 -> enable shared memory mode |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | * hp100_mode=3 -> force use of i/o mapped mode. |
| 521 | * hp100_mode=4 -> same as 1, but re-set the enable bit on the card. |
| 522 | */ |
| 523 | |
| 524 | /* |
| 525 | * LSW values: |
| 526 | * 0x2278 -> J2585B, PnP shared memory mode |
| 527 | * 0x2270 -> J2585B, shared memory mode, 0xdc000 |
| 528 | * 0xa23c -> J2585B, I/O mapped mode |
| 529 | * 0x2240 -> EISA COMPEX, BusMaster (Shasta Chip) |
| 530 | * 0x2220 -> EISA HP, I/O (Shasta Chip) |
| 531 | * 0x2260 -> EISA HP, BusMaster (Shasta Chip) |
| 532 | */ |
| 533 | |
| 534 | #if 0 |
| 535 | local_mode = 0x2270; |
| 536 | hp100_outw(0xfefe, OPTION_LSW); |
| 537 | hp100_outw(local_mode | HP100_SET_LB | HP100_SET_HB, OPTION_LSW); |
| 538 | #endif |
| 539 | |
| 540 | /* hp100_mode value maybe used in future by another card */ |
| 541 | local_mode = hp100_mode; |
| 542 | if (local_mode < 1 || local_mode > 4) |
| 543 | local_mode = 1; /* default */ |
| 544 | #ifdef HP100_DEBUG |
| 545 | printk("hp100: %s: original LSW = 0x%x\n", dev->name, |
| 546 | hp100_inw(OPTION_LSW)); |
| 547 | #endif |
| 548 | |
| 549 | if (local_mode == 3) { |
| 550 | hp100_outw(HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); |
| 551 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); |
| 552 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); |
| 553 | printk("hp100: IO mapped mode forced.\n"); |
| 554 | } else if (local_mode == 2) { |
| 555 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); |
| 556 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); |
| 557 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); |
| 558 | printk("hp100: Shared memory mode requested.\n"); |
| 559 | } else if (local_mode == 4) { |
| 560 | if (chip == HP100_CHIPID_LASSEN) { |
| 561 | hp100_outw(HP100_BM_WRITE | HP100_BM_READ | HP100_SET_HB, OPTION_LSW); |
| 562 | hp100_outw(HP100_IO_EN | HP100_MEM_EN | HP100_RESET_LB, OPTION_LSW); |
| 563 | printk("hp100: Busmaster mode requested.\n"); |
| 564 | } |
| 565 | local_mode = 1; |
| 566 | } |
| 567 | |
| 568 | if (local_mode == 1) { /* default behaviour */ |
| 569 | lsw = hp100_inw(OPTION_LSW); |
| 570 | |
| 571 | if ((lsw & HP100_IO_EN) && (~lsw & HP100_MEM_EN) && |
| 572 | (~lsw & (HP100_BM_WRITE | HP100_BM_READ))) { |
| 573 | #ifdef HP100_DEBUG |
| 574 | printk("hp100: %s: IO_EN bit is set on card.\n", dev->name); |
| 575 | #endif |
| 576 | local_mode = 3; |
| 577 | } else if (chip == HP100_CHIPID_LASSEN && |
| 578 | (lsw & (HP100_BM_WRITE | HP100_BM_READ)) == (HP100_BM_WRITE | HP100_BM_READ)) { |
| 579 | /* Conversion to new PCI API : |
| 580 | * I don't have the doc, but I assume that the card |
| 581 | * can map the full 32bit address space. |
| 582 | * Also, we can have EISA Busmaster cards (not tested), |
| 583 | * so beware !!! - Jean II */ |
| 584 | if((bus == HP100_BUS_PCI) && |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 585 | (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | /* Gracefully fallback to shared memory */ |
| 587 | goto busmasterfail; |
| 588 | } |
| 589 | printk("hp100: Busmaster mode enabled.\n"); |
| 590 | hp100_outw(HP100_MEM_EN | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); |
| 591 | } else { |
| 592 | busmasterfail: |
| 593 | #ifdef HP100_DEBUG |
| 594 | printk("hp100: %s: Card not configured for BM or BM not supported with this card.\n", dev->name); |
| 595 | printk("hp100: %s: Trying shared memory mode.\n", dev->name); |
| 596 | #endif |
| 597 | /* In this case, try shared memory mode */ |
| 598 | local_mode = 2; |
| 599 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); |
| 600 | /* hp100_outw(HP100_IO_EN|HP100_RESET_LB, OPTION_LSW); */ |
| 601 | } |
| 602 | } |
| 603 | #ifdef HP100_DEBUG |
| 604 | printk("hp100: %s: new LSW = 0x%x\n", dev->name, hp100_inw(OPTION_LSW)); |
| 605 | #endif |
| 606 | |
| 607 | /* Check for shared memory on the card, eventually remap it */ |
| 608 | hp100_page(HW_MAP); |
| 609 | mem_mapped = ((hp100_inw(OPTION_LSW) & (HP100_MEM_EN)) != 0); |
| 610 | mem_ptr_phys = 0UL; |
| 611 | mem_ptr_virt = NULL; |
| 612 | memory_size = (8192 << ((hp100_inb(SRAM) >> 5) & 0x07)); |
| 613 | virt_memory_size = 0; |
| 614 | |
| 615 | /* For memory mapped or busmaster mode, we want the memory address */ |
| 616 | if (mem_mapped || (local_mode == 1)) { |
| 617 | mem_ptr_phys = (hp100_inw(MEM_MAP_LSW) | (hp100_inw(MEM_MAP_MSW) << 16)); |
| 618 | mem_ptr_phys &= ~0x1fff; /* 8k alignment */ |
| 619 | |
| 620 | if (bus == HP100_BUS_ISA && (mem_ptr_phys & ~0xfffff) != 0) { |
| 621 | printk("hp100: Can only use programmed i/o mode.\n"); |
| 622 | mem_ptr_phys = 0; |
| 623 | mem_mapped = 0; |
| 624 | local_mode = 3; /* Use programmed i/o */ |
| 625 | } |
| 626 | |
| 627 | /* We do not need access to shared memory in busmaster mode */ |
| 628 | /* However in slave mode we need to remap high (>1GB) card memory */ |
| 629 | if (local_mode != 1) { /* = not busmaster */ |
| 630 | /* We try with smaller memory sizes, if ioremap fails */ |
| 631 | for (virt_memory_size = memory_size; virt_memory_size > 16383; virt_memory_size >>= 1) { |
| 632 | if ((mem_ptr_virt = ioremap((u_long) mem_ptr_phys, virt_memory_size)) == NULL) { |
| 633 | #ifdef HP100_DEBUG |
| 634 | printk("hp100: %s: ioremap for 0x%x bytes high PCI memory at 0x%lx failed\n", dev->name, virt_memory_size, mem_ptr_phys); |
| 635 | #endif |
| 636 | } else { |
| 637 | #ifdef HP100_DEBUG |
| 638 | 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); |
| 639 | #endif |
| 640 | break; |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | if (mem_ptr_virt == NULL) { /* all ioremap tries failed */ |
| 645 | printk("hp100: Failed to ioremap the PCI card memory. Will have to use i/o mapped mode.\n"); |
| 646 | local_mode = 3; |
| 647 | virt_memory_size = 0; |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (local_mode == 3) { /* io mapped forced */ |
| 653 | mem_mapped = 0; |
| 654 | mem_ptr_phys = 0; |
| 655 | mem_ptr_virt = NULL; |
| 656 | printk("hp100: Using (slow) programmed i/o mode.\n"); |
| 657 | } |
| 658 | |
| 659 | /* Initialise the "private" data structure for this card. */ |
| 660 | lp = netdev_priv(dev); |
| 661 | |
| 662 | spin_lock_init(&lp->lock); |
| 663 | strlcpy(lp->id, eid, HP100_SIG_LEN); |
| 664 | lp->chip = chip; |
| 665 | lp->mode = local_mode; |
| 666 | lp->bus = bus; |
| 667 | lp->pci_dev = pci_dev; |
| 668 | lp->priority_tx = hp100_priority_tx; |
| 669 | lp->rx_ratio = hp100_rx_ratio; |
| 670 | lp->mem_ptr_phys = mem_ptr_phys; |
| 671 | lp->mem_ptr_virt = mem_ptr_virt; |
| 672 | hp100_page(ID_MAC_ADDR); |
| 673 | lp->soft_model = hp100_inb(SOFT_MODEL); |
| 674 | lp->mac1_mode = HP100_MAC1MODE3; |
| 675 | lp->mac2_mode = HP100_MAC2MODE3; |
| 676 | memset(&lp->hash_bytes, 0x00, 8); |
| 677 | |
| 678 | dev->base_addr = ioaddr; |
| 679 | |
| 680 | lp->memory_size = memory_size; |
| 681 | lp->virt_memory_size = virt_memory_size; |
| 682 | lp->rx_ratio = hp100_rx_ratio; /* can be conf'd with insmod */ |
| 683 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | if (lp->mode == 1) /* busmaster */ |
Stephen Hemminger | d9d6f46 | 2009-01-07 18:13:49 -0800 | [diff] [blame] | 685 | dev->netdev_ops = &hp100_bm_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | else |
Stephen Hemminger | d9d6f46 | 2009-01-07 18:13:49 -0800 | [diff] [blame] | 687 | dev->netdev_ops = &hp100_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
| 689 | /* Ask the card for which IRQ line it is configured */ |
| 690 | if (bus == HP100_BUS_PCI) { |
| 691 | dev->irq = pci_dev->irq; |
| 692 | } else { |
| 693 | hp100_page(HW_MAP); |
| 694 | dev->irq = hp100_inb(IRQ_CHANNEL) & HP100_IRQMASK; |
| 695 | if (dev->irq == 2) |
| 696 | dev->irq = 9; |
| 697 | } |
| 698 | |
| 699 | if (lp->mode == 1) /* busmaster */ |
| 700 | dev->dma = 4; |
| 701 | |
| 702 | /* Ask the card for its MAC address and store it for later use. */ |
| 703 | hp100_page(ID_MAC_ADDR); |
| 704 | for (i = uc = 0; i < 6; i++) |
| 705 | dev->dev_addr[i] = hp100_inb(LAN_ADDR + i); |
| 706 | |
| 707 | /* Reset statistics (counters) */ |
| 708 | hp100_clear_stats(lp, ioaddr); |
| 709 | |
| 710 | /* If busmaster mode is wanted, a dma-capable memory area is needed for |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 711 | * the rx and tx PDLs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | * PCI cards can access the whole PC memory. Therefore GFP_DMA is not |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 713 | * needed for the allocation of the memory area. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | */ |
| 715 | |
| 716 | /* TODO: We do not need this with old cards, where PDLs are stored |
| 717 | * in the cards shared memory area. But currently, busmaster has been |
| 718 | * implemented/tested only with the lassen chip anyway... */ |
| 719 | if (lp->mode == 1) { /* busmaster */ |
| 720 | dma_addr_t page_baddr; |
| 721 | /* Get physically continous memory for TX & RX PDLs */ |
| 722 | /* Conversion to new PCI API : |
| 723 | * Pages are always aligned and zeroed, no need to it ourself. |
| 724 | * Doc says should be OK for EISA bus as well - Jean II */ |
| 725 | if ((lp->page_vaddr_algn = pci_alloc_consistent(lp->pci_dev, MAX_RINGSIZE, &page_baddr)) == NULL) { |
| 726 | err = -ENOMEM; |
| 727 | goto out2; |
| 728 | } |
| 729 | lp->whatever_offset = ((u_long) page_baddr) - ((u_long) lp->page_vaddr_algn); |
| 730 | |
| 731 | #ifdef HP100_DEBUG_BM |
| 732 | 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); |
| 733 | #endif |
| 734 | lp->rxrcommit = lp->txrcommit = 0; |
| 735 | lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); |
| 736 | lp->txrhead = lp->txrtail = &(lp->txring[0]); |
| 737 | } |
| 738 | |
| 739 | /* Initialise the card. */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 740 | /* (I'm not really sure if it's a good idea to do this during probing, but |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | * like this it's assured that the lan connection type can be sensed |
| 742 | * correctly) |
| 743 | */ |
| 744 | hp100_hwinit(dev); |
| 745 | |
| 746 | /* Try to find out which kind of LAN the card is connected to. */ |
| 747 | lp->lan_type = hp100_sense_lan(dev); |
| 748 | |
| 749 | /* Print out a message what about what we think we have probed. */ |
| 750 | printk("hp100: at 0x%x, IRQ %d, ", ioaddr, dev->irq); |
| 751 | switch (bus) { |
| 752 | case HP100_BUS_EISA: |
| 753 | printk("EISA"); |
| 754 | break; |
| 755 | case HP100_BUS_PCI: |
| 756 | printk("PCI"); |
| 757 | break; |
| 758 | default: |
| 759 | printk("ISA"); |
| 760 | break; |
| 761 | } |
| 762 | printk(" bus, %dk SRAM (rx/tx %d%%).\n", lp->memory_size >> 10, lp->rx_ratio); |
| 763 | |
| 764 | if (lp->mode == 2) { /* memory mapped */ |
| 765 | printk("hp100: Memory area at 0x%lx-0x%lx", mem_ptr_phys, |
| 766 | (mem_ptr_phys + (mem_ptr_phys > 0x100000 ? (u_long) lp->memory_size : 16 * 1024)) - 1); |
| 767 | if (mem_ptr_virt) |
| 768 | printk(" (virtual base %p)", mem_ptr_virt); |
| 769 | printk(".\n"); |
| 770 | |
| 771 | /* Set for info when doing ifconfig */ |
| 772 | dev->mem_start = mem_ptr_phys; |
| 773 | dev->mem_end = mem_ptr_phys + lp->memory_size; |
| 774 | } |
| 775 | |
| 776 | printk("hp100: "); |
| 777 | if (lp->lan_type != HP100_LAN_ERR) |
| 778 | printk("Adapter is attached to "); |
| 779 | switch (lp->lan_type) { |
| 780 | case HP100_LAN_100: |
| 781 | printk("100Mb/s Voice Grade AnyLAN network.\n"); |
| 782 | break; |
| 783 | case HP100_LAN_10: |
| 784 | printk("10Mb/s network (10baseT).\n"); |
| 785 | break; |
| 786 | case HP100_LAN_COAX: |
| 787 | printk("10Mb/s network (coax).\n"); |
| 788 | break; |
| 789 | default: |
| 790 | printk("Warning! Link down.\n"); |
| 791 | } |
| 792 | |
| b1fc550 | 2005-05-12 20:11:55 -0400 | [diff] [blame] | 793 | err = register_netdev(dev); |
| 794 | if (err) |
| 795 | goto out3; |
| 796 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | return 0; |
| b1fc550 | 2005-05-12 20:11:55 -0400 | [diff] [blame] | 798 | out3: |
| 799 | if (local_mode == 1) |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 800 | pci_free_consistent(lp->pci_dev, MAX_RINGSIZE + 0x0f, |
| 801 | lp->page_vaddr_algn, |
| b1fc550 | 2005-05-12 20:11:55 -0400 | [diff] [blame] | 802 | virt_to_whatever(dev, lp->page_vaddr_algn)); |
| 803 | if (mem_ptr_virt) |
| 804 | iounmap(mem_ptr_virt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | out2: |
| 806 | release_region(ioaddr, HP100_REGION_SIZE); |
| 807 | out1: |
| b1fc550 | 2005-05-12 20:11:55 -0400 | [diff] [blame] | 808 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | } |
| 810 | |
| 811 | /* This procedure puts the card into a stable init state */ |
| 812 | static void hp100_hwinit(struct net_device *dev) |
| 813 | { |
| 814 | int ioaddr = dev->base_addr; |
| 815 | struct hp100_private *lp = netdev_priv(dev); |
| 816 | |
| 817 | #ifdef HP100_DEBUG_B |
| 818 | hp100_outw(0x4202, TRACE); |
| 819 | printk("hp100: %s: hwinit\n", dev->name); |
| 820 | #endif |
| 821 | |
| 822 | /* Initialise the card. -------------------------------------------- */ |
| 823 | |
| 824 | /* Clear all pending Ints and disable Ints */ |
| 825 | hp100_page(PERFORMANCE); |
| 826 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 827 | hp100_outw(0xffff, IRQ_STATUS); /* clear all pending ints */ |
| 828 | |
| 829 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); |
| 830 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); |
| 831 | |
| 832 | if (lp->mode == 1) { |
| 833 | hp100_BM_shutdown(dev); /* disables BM, puts cascade in reset */ |
| 834 | wait(); |
| 835 | } else { |
| 836 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); |
| 837 | hp100_cascade_reset(dev, 1); |
| 838 | hp100_page(MAC_CTRL); |
| 839 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); |
| 840 | } |
| 841 | |
| 842 | /* Initiate EEPROM reload */ |
| 843 | hp100_load_eeprom(dev, 0); |
| 844 | |
| 845 | wait(); |
| 846 | |
| 847 | /* Go into reset again. */ |
| 848 | hp100_cascade_reset(dev, 1); |
| 849 | |
| 850 | /* Set Option Registers to a safe state */ |
| 851 | hp100_outw(HP100_DEBUG_EN | |
| 852 | HP100_RX_HDR | |
| 853 | HP100_EE_EN | |
| 854 | HP100_BM_WRITE | |
| 855 | HP100_BM_READ | HP100_RESET_HB | |
| 856 | HP100_FAKE_INT | |
| 857 | HP100_INT_EN | |
| 858 | HP100_MEM_EN | |
| 859 | HP100_IO_EN | HP100_RESET_LB, OPTION_LSW); |
| 860 | |
| 861 | hp100_outw(HP100_TRI_INT | |
| 862 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); |
| 863 | |
| 864 | hp100_outb(HP100_PRIORITY_TX | |
| 865 | HP100_ADV_NXT_PKT | |
| 866 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); |
| 867 | |
| 868 | /* TODO: Configure MMU for Ram Test. */ |
| 869 | /* TODO: Ram Test. */ |
| 870 | |
| 871 | /* Re-check if adapter is still at same i/o location */ |
| 872 | /* (If the base i/o in eeprom has been changed but the */ |
| 873 | /* registers had not been changed, a reload of the eeprom */ |
| 874 | /* would move the adapter to the address stored in eeprom */ |
| 875 | |
| 876 | /* TODO: Code to implement. */ |
| 877 | |
| 878 | /* Until here it was code from HWdiscover procedure. */ |
| 879 | /* Next comes code from mmuinit procedure of SCO BM driver which is |
| 880 | * called from HWconfigure in the SCO driver. */ |
| 881 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 882 | /* Initialise MMU, eventually switch on Busmaster Mode, initialise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | * multicast filter... |
| 884 | */ |
| 885 | hp100_mmuinit(dev); |
| 886 | |
| 887 | /* We don't turn the interrupts on here - this is done by start_interface. */ |
| 888 | wait(); /* TODO: Do we really need this? */ |
| 889 | |
| 890 | /* Enable Hardware (e.g. unreset) */ |
| 891 | hp100_cascade_reset(dev, 0); |
| 892 | |
| 893 | /* ------- initialisation complete ----------- */ |
| 894 | |
| 895 | /* Finally try to log in the Hub if there may be a VG connection. */ |
| 896 | if ((lp->lan_type == HP100_LAN_100) || (lp->lan_type == HP100_LAN_ERR)) |
| 897 | hp100_login_to_vg_hub(dev, 0); /* relogin */ |
| 898 | |
| 899 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 901 | |
| 902 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | * mmuinit - Reinitialise Cascade MMU and MAC settings. |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 904 | * Note: Must already be in reset and leaves card in reset. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | */ |
| 906 | static void hp100_mmuinit(struct net_device *dev) |
| 907 | { |
| 908 | int ioaddr = dev->base_addr; |
| 909 | struct hp100_private *lp = netdev_priv(dev); |
| 910 | int i; |
| 911 | |
| 912 | #ifdef HP100_DEBUG_B |
| 913 | hp100_outw(0x4203, TRACE); |
| 914 | printk("hp100: %s: mmuinit\n", dev->name); |
| 915 | #endif |
| 916 | |
| 917 | #ifdef HP100_DEBUG |
| 918 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { |
| 919 | printk("hp100: %s: Not in reset when entering mmuinit. Fix me.\n", dev->name); |
| 920 | return; |
| 921 | } |
| 922 | #endif |
| 923 | |
| 924 | /* Make sure IRQs are masked off and ack'ed. */ |
| 925 | hp100_page(PERFORMANCE); |
| 926 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 927 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ |
| 928 | |
| 929 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 930 | * Enable Hardware |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | * - Clear Debug En, Rx Hdr Pipe, EE En, I/O En, Fake Int and Intr En |
| 932 | * - Set Tri-State Int, Bus Master Rd/Wr, and Mem Map Disable |
| 933 | * - Clear Priority, Advance Pkt and Xmit Cmd |
| 934 | */ |
| 935 | |
| 936 | hp100_outw(HP100_DEBUG_EN | |
| 937 | HP100_RX_HDR | |
| 938 | HP100_EE_EN | HP100_RESET_HB | |
| 939 | HP100_IO_EN | |
| 940 | HP100_FAKE_INT | |
| 941 | HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); |
| 942 | |
| 943 | hp100_outw(HP100_TRI_INT | HP100_SET_HB, OPTION_LSW); |
| 944 | |
| 945 | if (lp->mode == 1) { /* busmaster */ |
| 946 | hp100_outw(HP100_BM_WRITE | |
| 947 | HP100_BM_READ | |
| 948 | HP100_MMAP_DIS | HP100_SET_HB, OPTION_LSW); |
| 949 | } else if (lp->mode == 2) { /* memory mapped */ |
| 950 | hp100_outw(HP100_BM_WRITE | |
| 951 | HP100_BM_READ | HP100_RESET_HB, OPTION_LSW); |
| 952 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); |
| 953 | hp100_outw(HP100_MEM_EN | HP100_SET_LB, OPTION_LSW); |
| 954 | hp100_outw(HP100_IO_EN | HP100_SET_LB, OPTION_LSW); |
| 955 | } else if (lp->mode == 3) { /* i/o mapped mode */ |
| 956 | hp100_outw(HP100_MMAP_DIS | HP100_SET_HB | |
| 957 | HP100_IO_EN | HP100_SET_LB, OPTION_LSW); |
| 958 | } |
| 959 | |
| 960 | hp100_page(HW_MAP); |
| 961 | hp100_outb(0, EARLYRXCFG); |
| 962 | hp100_outw(0, EARLYTXCFG); |
| 963 | |
| 964 | /* |
| 965 | * Enable Bus Master mode |
| 966 | */ |
| 967 | if (lp->mode == 1) { /* busmaster */ |
| 968 | /* Experimental: Set some PCI configuration bits */ |
| 969 | hp100_page(HW_MAP); |
| 970 | hp100_andb(~HP100_PDL_USE3, MODECTRL1); /* BM engine read maximum */ |
| 971 | hp100_andb(~HP100_TX_DUALQ, MODECTRL1); /* No Queue for Priority TX */ |
| 972 | |
| 973 | /* PCI Bus failures should result in a Misc. Interrupt */ |
| 974 | hp100_orb(HP100_EN_BUS_FAIL, MODECTRL2); |
| 975 | |
| 976 | hp100_outw(HP100_BM_READ | HP100_BM_WRITE | HP100_SET_HB, OPTION_LSW); |
| 977 | hp100_page(HW_MAP); |
| 978 | /* Use Burst Mode and switch on PAGE_CK */ |
| 979 | hp100_orb(HP100_BM_BURST_RD | HP100_BM_BURST_WR, BM); |
| 980 | if ((lp->chip == HP100_CHIPID_RAINIER) || (lp->chip == HP100_CHIPID_SHASTA)) |
| 981 | hp100_orb(HP100_BM_PAGE_CK, BM); |
| 982 | hp100_orb(HP100_BM_MASTER, BM); |
| 983 | } else { /* not busmaster */ |
| 984 | |
| 985 | hp100_page(HW_MAP); |
| 986 | hp100_andb(~HP100_BM_MASTER, BM); |
| 987 | } |
| 988 | |
| 989 | /* |
| 990 | * Divide card memory into regions for Rx, Tx and, if non-ETR chip, PDLs |
| 991 | */ |
| 992 | hp100_page(MMU_CFG); |
| 993 | if (lp->mode == 1) { /* only needed for Busmaster */ |
| 994 | int xmit_stop, recv_stop; |
| 995 | |
| 996 | if ((lp->chip == HP100_CHIPID_RAINIER) |
| 997 | || (lp->chip == HP100_CHIPID_SHASTA)) { |
| 998 | int pdl_stop; |
| 999 | |
| 1000 | /* |
| 1001 | * Each pdl is 508 bytes long. (63 frags * 4 bytes for address and |
| 1002 | * 4 bytes for header). We will leave NUM_RXPDLS * 508 (rounded |
| 1003 | * to the next higher 1k boundary) bytes for the rx-pdl's |
| 1004 | * Note: For non-etr chips the transmit stop register must be |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1005 | * programmed on a 1k boundary, i.e. bits 9:0 must be zero. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | */ |
| 1007 | pdl_stop = lp->memory_size; |
| 1008 | xmit_stop = (pdl_stop - 508 * (MAX_RX_PDL) - 16) & ~(0x03ff); |
| 1009 | recv_stop = (xmit_stop * (lp->rx_ratio) / 100) & ~(0x03ff); |
| 1010 | hp100_outw((pdl_stop >> 4) - 1, PDL_MEM_STOP); |
| 1011 | #ifdef HP100_DEBUG_BM |
| 1012 | printk("hp100: %s: PDL_STOP = 0x%x\n", dev->name, pdl_stop); |
| 1013 | #endif |
| 1014 | } else { |
| 1015 | /* ETR chip (Lassen) in busmaster mode */ |
| 1016 | xmit_stop = (lp->memory_size) - 1; |
| 1017 | recv_stop = ((lp->memory_size * lp->rx_ratio) / 100) & ~(0x03ff); |
| 1018 | } |
| 1019 | |
| 1020 | hp100_outw(xmit_stop >> 4, TX_MEM_STOP); |
| 1021 | hp100_outw(recv_stop >> 4, RX_MEM_STOP); |
| 1022 | #ifdef HP100_DEBUG_BM |
| 1023 | printk("hp100: %s: TX_STOP = 0x%x\n", dev->name, xmit_stop >> 4); |
| 1024 | printk("hp100: %s: RX_STOP = 0x%x\n", dev->name, recv_stop >> 4); |
| 1025 | #endif |
| 1026 | } else { |
| 1027 | /* Slave modes (memory mapped and programmed io) */ |
| 1028 | hp100_outw((((lp->memory_size * lp->rx_ratio) / 100) >> 4), RX_MEM_STOP); |
| 1029 | hp100_outw(((lp->memory_size - 1) >> 4), TX_MEM_STOP); |
| 1030 | #ifdef HP100_DEBUG |
| 1031 | printk("hp100: %s: TX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(TX_MEM_STOP)); |
| 1032 | printk("hp100: %s: RX_MEM_STOP: 0x%x\n", dev->name, hp100_inw(RX_MEM_STOP)); |
| 1033 | #endif |
| 1034 | } |
| 1035 | |
| 1036 | /* Write MAC address into page 1 */ |
| 1037 | hp100_page(MAC_ADDRESS); |
| 1038 | for (i = 0; i < 6; i++) |
| 1039 | hp100_outb(dev->dev_addr[i], MAC_ADDR + i); |
| 1040 | |
| 1041 | /* Zero the multicast hash registers */ |
| 1042 | for (i = 0; i < 8; i++) |
| 1043 | hp100_outb(0x0, HASH_BYTE0 + i); |
| 1044 | |
| 1045 | /* Set up MAC defaults */ |
| 1046 | hp100_page(MAC_CTRL); |
| 1047 | |
| 1048 | /* Go to LAN Page and zero all filter bits */ |
| 1049 | /* Zero accept error, accept multicast, accept broadcast and accept */ |
| 1050 | /* all directed packet bits */ |
| 1051 | hp100_andb(~(HP100_RX_EN | |
| 1052 | HP100_TX_EN | |
| 1053 | HP100_ACC_ERRORED | |
| 1054 | HP100_ACC_MC | |
| 1055 | HP100_ACC_BC | HP100_ACC_PHY), MAC_CFG_1); |
| 1056 | |
| 1057 | hp100_outb(0x00, MAC_CFG_2); |
| 1058 | |
| 1059 | /* Zero the frame format bit. This works around a training bug in the */ |
| 1060 | /* new hubs. */ |
| 1061 | hp100_outb(0x00, VG_LAN_CFG_2); /* (use 802.3) */ |
| 1062 | |
| 1063 | if (lp->priority_tx) |
| 1064 | hp100_outb(HP100_PRIORITY_TX | HP100_SET_LB, OPTION_MSW); |
| 1065 | else |
| 1066 | hp100_outb(HP100_PRIORITY_TX | HP100_RESET_LB, OPTION_MSW); |
| 1067 | |
| 1068 | hp100_outb(HP100_ADV_NXT_PKT | |
| 1069 | HP100_TX_CMD | HP100_RESET_LB, OPTION_MSW); |
| 1070 | |
| 1071 | /* If busmaster, initialize the PDLs */ |
| 1072 | if (lp->mode == 1) |
| 1073 | hp100_init_pdls(dev); |
| 1074 | |
| 1075 | /* Go to performance page and initalize isr and imr registers */ |
| 1076 | hp100_page(PERFORMANCE); |
| 1077 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 1078 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ |
| 1079 | } |
| 1080 | |
| 1081 | /* |
| 1082 | * open/close functions |
| 1083 | */ |
| 1084 | |
| 1085 | static int hp100_open(struct net_device *dev) |
| 1086 | { |
| 1087 | struct hp100_private *lp = netdev_priv(dev); |
| 1088 | #ifdef HP100_DEBUG_B |
| 1089 | int ioaddr = dev->base_addr; |
| 1090 | #endif |
| 1091 | |
| 1092 | #ifdef HP100_DEBUG_B |
| 1093 | hp100_outw(0x4204, TRACE); |
| 1094 | printk("hp100: %s: open\n", dev->name); |
| 1095 | #endif |
| 1096 | |
| 1097 | /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ |
| 1098 | if (request_irq(dev->irq, hp100_interrupt, |
| 1099 | lp->bus == HP100_BUS_PCI || lp->bus == |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 1100 | HP100_BUS_EISA ? IRQF_SHARED : IRQF_DISABLED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | "hp100", dev)) { |
| 1102 | printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); |
| 1103 | return -EAGAIN; |
| 1104 | } |
| 1105 | |
| 1106 | dev->trans_start = jiffies; |
| 1107 | netif_start_queue(dev); |
| 1108 | |
| 1109 | lp->lan_type = hp100_sense_lan(dev); |
| 1110 | lp->mac1_mode = HP100_MAC1MODE3; |
| 1111 | lp->mac2_mode = HP100_MAC2MODE3; |
| 1112 | memset(&lp->hash_bytes, 0x00, 8); |
| 1113 | |
| 1114 | hp100_stop_interface(dev); |
| 1115 | |
| 1116 | hp100_hwinit(dev); |
| 1117 | |
| 1118 | hp100_start_interface(dev); /* sets mac modes, enables interrupts */ |
| 1119 | |
| 1120 | return 0; |
| 1121 | } |
| 1122 | |
| 1123 | /* The close function is called when the interface is to be brought down */ |
| 1124 | static int hp100_close(struct net_device *dev) |
| 1125 | { |
| 1126 | int ioaddr = dev->base_addr; |
| 1127 | struct hp100_private *lp = netdev_priv(dev); |
| 1128 | |
| 1129 | #ifdef HP100_DEBUG_B |
| 1130 | hp100_outw(0x4205, TRACE); |
| 1131 | printk("hp100: %s: close\n", dev->name); |
| 1132 | #endif |
| 1133 | |
| 1134 | hp100_page(PERFORMANCE); |
| 1135 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all IRQs */ |
| 1136 | |
| 1137 | hp100_stop_interface(dev); |
| 1138 | |
| 1139 | if (lp->lan_type == HP100_LAN_100) |
| 1140 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1141 | |
| 1142 | netif_stop_queue(dev); |
| 1143 | |
| 1144 | free_irq(dev->irq, dev); |
| 1145 | |
| 1146 | #ifdef HP100_DEBUG |
| 1147 | printk("hp100: %s: close LSW = 0x%x\n", dev->name, |
| 1148 | hp100_inw(OPTION_LSW)); |
| 1149 | #endif |
| 1150 | |
| 1151 | return 0; |
| 1152 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1153 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | |
| 1155 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1156 | * Configure the PDL Rx rings and LAN |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | */ |
| 1158 | static void hp100_init_pdls(struct net_device *dev) |
| 1159 | { |
| 1160 | struct hp100_private *lp = netdev_priv(dev); |
| 1161 | hp100_ring_t *ringptr; |
| 1162 | u_int *pageptr; /* Warning : increment by 4 - Jean II */ |
| 1163 | int i; |
| 1164 | |
| 1165 | #ifdef HP100_DEBUG_B |
| 1166 | int ioaddr = dev->base_addr; |
| 1167 | #endif |
| 1168 | |
| 1169 | #ifdef HP100_DEBUG_B |
| 1170 | hp100_outw(0x4206, TRACE); |
| 1171 | printk("hp100: %s: init pdls\n", dev->name); |
| 1172 | #endif |
| 1173 | |
Al Viro | 79ea13c | 2008-01-24 02:06:46 -0800 | [diff] [blame] | 1174 | if (!lp->page_vaddr_algn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | printk("hp100: %s: Warning: lp->page_vaddr_algn not initialised!\n", dev->name); |
| 1176 | else { |
| 1177 | /* pageptr shall point into the DMA accessible memory region */ |
| 1178 | /* we use this pointer to status the upper limit of allocated */ |
| 1179 | /* memory in the allocated page. */ |
| 1180 | /* note: align the pointers to the pci cache line size */ |
| 1181 | memset(lp->page_vaddr_algn, 0, MAX_RINGSIZE); /* Zero Rx/Tx ring page */ |
| 1182 | pageptr = lp->page_vaddr_algn; |
| 1183 | |
| 1184 | lp->rxrcommit = 0; |
| 1185 | ringptr = lp->rxrhead = lp->rxrtail = &(lp->rxring[0]); |
| 1186 | |
| 1187 | /* Initialise Rx Ring */ |
| 1188 | for (i = MAX_RX_PDL - 1; i >= 0; i--) { |
| 1189 | lp->rxring[i].next = ringptr; |
| 1190 | ringptr = &(lp->rxring[i]); |
| 1191 | pageptr += hp100_init_rxpdl(dev, ringptr, pageptr); |
| 1192 | } |
| 1193 | |
| 1194 | /* Initialise Tx Ring */ |
| 1195 | lp->txrcommit = 0; |
| 1196 | ringptr = lp->txrhead = lp->txrtail = &(lp->txring[0]); |
| 1197 | for (i = MAX_TX_PDL - 1; i >= 0; i--) { |
| 1198 | lp->txring[i].next = ringptr; |
| 1199 | ringptr = &(lp->txring[i]); |
| 1200 | pageptr += hp100_init_txpdl(dev, ringptr, pageptr); |
| 1201 | } |
| 1202 | } |
| 1203 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1204 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | |
| 1206 | /* These functions "format" the entries in the pdl structure */ |
| 1207 | /* They return how much memory the fragments need. */ |
| 1208 | static int hp100_init_rxpdl(struct net_device *dev, |
| 1209 | register hp100_ring_t * ringptr, |
| 1210 | register u32 * pdlptr) |
| 1211 | { |
| 1212 | /* pdlptr is starting address for this pdl */ |
| 1213 | |
| 1214 | if (0 != (((unsigned long) pdlptr) & 0xf)) |
| 1215 | printk("hp100: %s: Init rxpdl: Unaligned pdlptr 0x%lx.\n", |
| 1216 | dev->name, (unsigned long) pdlptr); |
| 1217 | |
| 1218 | ringptr->pdl = pdlptr + 1; |
| 1219 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr + 1); |
| 1220 | ringptr->skb = (void *) NULL; |
| 1221 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1222 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | * Write address and length of first PDL Fragment (which is used for |
| 1224 | * storing the RX-Header |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1225 | * We use the 4 bytes _before_ the PDH in the pdl memory area to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | * store this information. (PDH is at offset 0x04) |
| 1227 | */ |
| 1228 | /* Note that pdlptr+1 and not pdlptr is the pointer to the PDH */ |
| 1229 | |
| 1230 | *(pdlptr + 2) = (u_int) virt_to_whatever(dev, pdlptr); /* Address Frag 1 */ |
| 1231 | *(pdlptr + 3) = 4; /* Length Frag 1 */ |
| 1232 | |
Ilpo Järvinen | c40cf51 | 2008-12-16 01:14:21 -0800 | [diff] [blame] | 1233 | return roundup(MAX_RX_FRAG * 2 + 2, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | static int hp100_init_txpdl(struct net_device *dev, |
| 1238 | register hp100_ring_t * ringptr, |
| 1239 | register u32 * pdlptr) |
| 1240 | { |
| 1241 | if (0 != (((unsigned long) pdlptr) & 0xf)) |
| 1242 | printk("hp100: %s: Init txpdl: Unaligned pdlptr 0x%lx.\n", dev->name, (unsigned long) pdlptr); |
| 1243 | |
| 1244 | ringptr->pdl = pdlptr; /* +1; */ |
| 1245 | ringptr->pdl_paddr = virt_to_whatever(dev, pdlptr); /* +1 */ |
| 1246 | ringptr->skb = (void *) NULL; |
| 1247 | |
Ilpo Järvinen | c40cf51 | 2008-12-16 01:14:21 -0800 | [diff] [blame] | 1248 | return roundup(MAX_TX_FRAG * 2 + 2, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | } |
| 1250 | |
| 1251 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1252 | * hp100_build_rx_pdl allocates an skb_buff of maximum size plus two bytes |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | * for possible odd word alignment rounding up to next dword and set PDL |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1254 | * address for fragment#2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1255 | * Returns: 0 if unable to allocate skb_buff |
| 1256 | * 1 if successful |
| 1257 | */ |
| 1258 | static int hp100_build_rx_pdl(hp100_ring_t * ringptr, |
| 1259 | struct net_device *dev) |
| 1260 | { |
| 1261 | #ifdef HP100_DEBUG_B |
| 1262 | int ioaddr = dev->base_addr; |
| 1263 | #endif |
| 1264 | #ifdef HP100_DEBUG_BM |
| 1265 | u_int *p; |
| 1266 | #endif |
| 1267 | |
| 1268 | #ifdef HP100_DEBUG_B |
| 1269 | hp100_outw(0x4207, TRACE); |
| 1270 | printk("hp100: %s: build rx pdl\n", dev->name); |
| 1271 | #endif |
| 1272 | |
| 1273 | /* Allocate skb buffer of maximum size */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1274 | /* Note: This depends on the alloc_skb functions allocating more |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | * space than requested, i.e. aligning to 16bytes */ |
| 1276 | |
Ilpo Järvinen | c40cf51 | 2008-12-16 01:14:21 -0800 | [diff] [blame] | 1277 | ringptr->skb = dev_alloc_skb(roundup(MAX_ETHER_SIZE + 2, 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | |
| 1279 | if (NULL != ringptr->skb) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1280 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | * Reserve 2 bytes at the head of the buffer to land the IP header |
| 1282 | * on a long word boundary (According to the Network Driver section |
| 1283 | * in the Linux KHG, this should help to increase performance.) |
| 1284 | */ |
| 1285 | skb_reserve(ringptr->skb, 2); |
| 1286 | |
| 1287 | ringptr->skb->dev = dev; |
| 1288 | ringptr->skb->data = (u_char *) skb_put(ringptr->skb, MAX_ETHER_SIZE); |
| 1289 | |
| 1290 | /* ringptr->pdl points to the beginning of the PDL, i.e. the PDH */ |
| 1291 | /* Note: 1st Fragment is used for the 4 byte packet status |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1292 | * (receive header). Its PDL entries are set up by init_rxpdl. So |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | * here we only have to set up the PDL fragment entries for the data |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1294 | * part. Those 4 bytes will be stored in the DMA memory region |
| 1295 | * directly before the PDL. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | */ |
| 1297 | #ifdef HP100_DEBUG_BM |
| 1298 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, skb->data (len %d) at 0x%x\n", |
| 1299 | dev->name, (u_int) ringptr->pdl, |
Ilpo Järvinen | c40cf51 | 2008-12-16 01:14:21 -0800 | [diff] [blame] | 1300 | roundup(MAX_ETHER_SIZE + 2, 4), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | (unsigned int) ringptr->skb->data); |
| 1302 | #endif |
| 1303 | |
| 1304 | /* Conversion to new PCI API : map skbuf data to PCI bus. |
| 1305 | * Doc says it's OK for EISA as well - Jean II */ |
| 1306 | ringptr->pdl[0] = 0x00020000; /* Write PDH */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1307 | ringptr->pdl[3] = pdl_map_data(netdev_priv(dev), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | ringptr->skb->data); |
| 1309 | ringptr->pdl[4] = MAX_ETHER_SIZE; /* Length of Data */ |
| 1310 | |
| 1311 | #ifdef HP100_DEBUG_BM |
| 1312 | for (p = (ringptr->pdl); p < (ringptr->pdl + 5); p++) |
| 1313 | printk("hp100: %s: Adr 0x%.8x = 0x%.8x\n", dev->name, (u_int) p, (u_int) * p); |
| 1314 | #endif |
| 1315 | return (1); |
| 1316 | } |
| 1317 | /* else: */ |
| 1318 | /* alloc_skb failed (no memory) -> still can receive the header |
| 1319 | * fragment into PDL memory. make PDL safe by clearing msgptr and |
| 1320 | * making the PDL only 1 fragment (i.e. the 4 byte packet status) |
| 1321 | */ |
| 1322 | #ifdef HP100_DEBUG_BM |
| 1323 | printk("hp100: %s: build_rx_pdl: PDH@0x%x, No space for skb.\n", dev->name, (u_int) ringptr->pdl); |
| 1324 | #endif |
| 1325 | |
| 1326 | ringptr->pdl[0] = 0x00010000; /* PDH: Count=1 Fragment */ |
| 1327 | |
| 1328 | return (0); |
| 1329 | } |
| 1330 | |
| 1331 | /* |
| 1332 | * hp100_rxfill - attempt to fill the Rx Ring will empty skb's |
| 1333 | * |
| 1334 | * Makes assumption that skb's are always contiguous memory areas and |
| 1335 | * therefore PDLs contain only 2 physical fragments. |
| 1336 | * - While the number of Rx PDLs with buffers is less than maximum |
| 1337 | * a. Get a maximum packet size skb |
| 1338 | * b. Put the physical address of the buffer into the PDL. |
| 1339 | * c. Output physical address of PDL to adapter. |
| 1340 | */ |
| 1341 | static void hp100_rxfill(struct net_device *dev) |
| 1342 | { |
| 1343 | int ioaddr = dev->base_addr; |
| 1344 | |
| 1345 | struct hp100_private *lp = netdev_priv(dev); |
| 1346 | hp100_ring_t *ringptr; |
| 1347 | |
| 1348 | #ifdef HP100_DEBUG_B |
| 1349 | hp100_outw(0x4208, TRACE); |
| 1350 | printk("hp100: %s: rxfill\n", dev->name); |
| 1351 | #endif |
| 1352 | |
| 1353 | hp100_page(PERFORMANCE); |
| 1354 | |
| 1355 | while (lp->rxrcommit < MAX_RX_PDL) { |
| 1356 | /* |
| 1357 | ** Attempt to get a buffer and build a Rx PDL. |
| 1358 | */ |
| 1359 | ringptr = lp->rxrtail; |
| 1360 | if (0 == hp100_build_rx_pdl(ringptr, dev)) { |
| 1361 | return; /* None available, return */ |
| 1362 | } |
| 1363 | |
| 1364 | /* Hand this PDL over to the card */ |
| 1365 | /* Note: This needs performance page selected! */ |
| 1366 | #ifdef HP100_DEBUG_BM |
| 1367 | printk("hp100: %s: rxfill: Hand to card: pdl #%d @0x%x phys:0x%x, buffer: 0x%x\n", |
| 1368 | dev->name, lp->rxrcommit, (u_int) ringptr->pdl, |
| 1369 | (u_int) ringptr->pdl_paddr, (u_int) ringptr->pdl[3]); |
| 1370 | #endif |
| 1371 | |
| 1372 | hp100_outl((u32) ringptr->pdl_paddr, RX_PDA); |
| 1373 | |
| 1374 | lp->rxrcommit += 1; |
| 1375 | lp->rxrtail = ringptr->next; |
| 1376 | } |
| 1377 | } |
| 1378 | |
| 1379 | /* |
| 1380 | * BM_shutdown - shutdown bus mastering and leave chip in reset state |
| 1381 | */ |
| 1382 | |
| 1383 | static void hp100_BM_shutdown(struct net_device *dev) |
| 1384 | { |
| 1385 | int ioaddr = dev->base_addr; |
| 1386 | struct hp100_private *lp = netdev_priv(dev); |
| 1387 | unsigned long time; |
| 1388 | |
| 1389 | #ifdef HP100_DEBUG_B |
| 1390 | hp100_outw(0x4209, TRACE); |
| 1391 | printk("hp100: %s: bm shutdown\n", dev->name); |
| 1392 | #endif |
| 1393 | |
| 1394 | hp100_page(PERFORMANCE); |
| 1395 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 1396 | hp100_outw(0xffff, IRQ_STATUS); /* Ack all ints */ |
| 1397 | |
| 1398 | /* Ensure Interrupts are off */ |
| 1399 | hp100_outw(HP100_INT_EN | HP100_RESET_LB, OPTION_LSW); |
| 1400 | |
| 1401 | /* Disable all MAC activity */ |
| 1402 | hp100_page(MAC_CTRL); |
| 1403 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ |
| 1404 | |
| 1405 | /* If cascade MMU is not already in reset */ |
| 1406 | if (0 != (hp100_inw(OPTION_LSW) & HP100_HW_RST)) { |
| 1407 | /* Wait 1.3ms (10Mb max packet time) to ensure MAC is idle so |
| 1408 | * MMU pointers will not be reset out from underneath |
| 1409 | */ |
| 1410 | hp100_page(MAC_CTRL); |
| 1411 | for (time = 0; time < 5000; time++) { |
| 1412 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) |
| 1413 | break; |
| 1414 | } |
| 1415 | |
| 1416 | /* Shutdown algorithm depends on the generation of Cascade */ |
| 1417 | if (lp->chip == HP100_CHIPID_LASSEN) { /* ETR shutdown/reset */ |
| 1418 | /* Disable Busmaster mode and wait for bit to go to zero. */ |
| 1419 | hp100_page(HW_MAP); |
| 1420 | hp100_andb(~HP100_BM_MASTER, BM); |
| 1421 | /* 100 ms timeout */ |
| 1422 | for (time = 0; time < 32000; time++) { |
| 1423 | if (0 == (hp100_inb(BM) & HP100_BM_MASTER)) |
| 1424 | break; |
| 1425 | } |
| 1426 | } else { /* Shasta or Rainier Shutdown/Reset */ |
| 1427 | /* To ensure all bus master inloading activity has ceased, |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1428 | * wait for no Rx PDAs or no Rx packets on card. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | */ |
| 1430 | hp100_page(PERFORMANCE); |
| 1431 | /* 100 ms timeout */ |
| 1432 | for (time = 0; time < 10000; time++) { |
| 1433 | /* RX_PDL: PDLs not executed. */ |
| 1434 | /* RX_PKT_CNT: RX'd packets on card. */ |
| 1435 | if ((hp100_inb(RX_PDL) == 0) && (hp100_inb(RX_PKT_CNT) == 0)) |
| 1436 | break; |
| 1437 | } |
| 1438 | |
| 1439 | if (time >= 10000) |
| 1440 | printk("hp100: %s: BM shutdown error.\n", dev->name); |
| 1441 | |
| 1442 | /* To ensure all bus master outloading activity has ceased, |
| 1443 | * wait until the Tx PDA count goes to zero or no more Tx space |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1444 | * available in the Tx region of the card. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | */ |
| 1446 | /* 100 ms timeout */ |
| 1447 | for (time = 0; time < 10000; time++) { |
| 1448 | if ((0 == hp100_inb(TX_PKT_CNT)) && |
| 1449 | (0 != (hp100_inb(TX_MEM_FREE) & HP100_AUTO_COMPARE))) |
| 1450 | break; |
| 1451 | } |
| 1452 | |
| 1453 | /* Disable Busmaster mode */ |
| 1454 | hp100_page(HW_MAP); |
| 1455 | hp100_andb(~HP100_BM_MASTER, BM); |
| 1456 | } /* end of shutdown procedure for non-etr parts */ |
| 1457 | |
| 1458 | hp100_cascade_reset(dev, 1); |
| 1459 | } |
| 1460 | hp100_page(PERFORMANCE); |
| 1461 | /* hp100_outw( HP100_BM_READ | HP100_BM_WRITE | HP100_RESET_HB, OPTION_LSW ); */ |
| 1462 | /* Busmaster mode should be shut down now. */ |
| 1463 | } |
| 1464 | |
| 1465 | static int hp100_check_lan(struct net_device *dev) |
| 1466 | { |
| 1467 | struct hp100_private *lp = netdev_priv(dev); |
| 1468 | |
| 1469 | if (lp->lan_type < 0) { /* no LAN type detected yet? */ |
| 1470 | hp100_stop_interface(dev); |
| 1471 | if ((lp->lan_type = hp100_sense_lan(dev)) < 0) { |
| 1472 | printk("hp100: %s: no connection found - check wire\n", dev->name); |
| 1473 | hp100_start_interface(dev); /* 10Mb/s RX packets maybe handled */ |
| 1474 | return -EIO; |
| 1475 | } |
| 1476 | if (lp->lan_type == HP100_LAN_100) |
| 1477 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); /* relogin */ |
| 1478 | hp100_start_interface(dev); |
| 1479 | } |
| 1480 | return 0; |
| 1481 | } |
| 1482 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1483 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | * transmit functions |
| 1485 | */ |
| 1486 | |
| 1487 | /* tx function for busmaster mode */ |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 1488 | static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb, |
| 1489 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | { |
| 1491 | unsigned long flags; |
| 1492 | int i, ok_flag; |
| 1493 | int ioaddr = dev->base_addr; |
| 1494 | struct hp100_private *lp = netdev_priv(dev); |
| 1495 | hp100_ring_t *ringptr; |
| 1496 | |
| 1497 | #ifdef HP100_DEBUG_B |
| 1498 | hp100_outw(0x4210, TRACE); |
| 1499 | printk("hp100: %s: start_xmit_bm\n", dev->name); |
| 1500 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | if (skb->len <= 0) |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1502 | goto drop; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1503 | |
Herbert Xu | 5b057c6 | 2006-06-23 02:06:41 -0700 | [diff] [blame] | 1504 | if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN)) |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 1505 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | |
| 1507 | /* Get Tx ring tail pointer */ |
| 1508 | if (lp->txrtail->next == lp->txrhead) { |
| 1509 | /* No memory. */ |
| 1510 | #ifdef HP100_DEBUG |
| 1511 | printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name); |
| 1512 | #endif |
| 1513 | /* not waited long enough since last tx? */ |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 1514 | if (time_before(jiffies, dev->trans_start + HZ)) |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1515 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | |
| 1517 | if (hp100_check_lan(dev)) |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1518 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | |
| 1520 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { |
| 1521 | /* we have a 100Mb/s adapter but it isn't connected to hub */ |
| 1522 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); |
| 1523 | hp100_stop_interface(dev); |
| 1524 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1525 | hp100_start_interface(dev); |
| 1526 | } else { |
| 1527 | spin_lock_irqsave(&lp->lock, flags); |
| 1528 | hp100_ints_off(); /* Useful ? Jean II */ |
| 1529 | i = hp100_sense_lan(dev); |
| 1530 | hp100_ints_on(); |
| 1531 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1532 | if (i == HP100_LAN_ERR) |
| 1533 | printk("hp100: %s: link down detected\n", dev->name); |
| 1534 | else if (lp->lan_type != i) { /* cable change! */ |
| 1535 | /* it's very hard - all network settings must be changed!!! */ |
| 1536 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); |
| 1537 | lp->lan_type = i; |
| 1538 | hp100_stop_interface(dev); |
| 1539 | if (lp->lan_type == HP100_LAN_100) |
| 1540 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1541 | hp100_start_interface(dev); |
| 1542 | } else { |
| 1543 | printk("hp100: %s: interface reset\n", dev->name); |
| 1544 | hp100_stop_interface(dev); |
| 1545 | if (lp->lan_type == HP100_LAN_100) |
| 1546 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1547 | hp100_start_interface(dev); |
| 1548 | } |
| 1549 | } |
| 1550 | |
| 1551 | dev->trans_start = jiffies; |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1552 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | } |
| 1554 | |
| 1555 | /* |
| 1556 | * we have to turn int's off before modifying this, otherwise |
| 1557 | * a tx_pdl_cleanup could occur at the same time |
| 1558 | */ |
| 1559 | spin_lock_irqsave(&lp->lock, flags); |
| 1560 | ringptr = lp->txrtail; |
| 1561 | lp->txrtail = ringptr->next; |
| 1562 | |
| 1563 | /* Check whether packet has minimal packet size */ |
| 1564 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; |
| 1565 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; |
| 1566 | |
| 1567 | ringptr->skb = skb; |
| 1568 | ringptr->pdl[0] = ((1 << 16) | i); /* PDH: 1 Fragment & length */ |
| 1569 | if (lp->chip == HP100_CHIPID_SHASTA) { |
| 1570 | /* TODO:Could someone who has the EISA card please check if this works? */ |
| 1571 | ringptr->pdl[2] = i; |
| 1572 | } else { /* Lassen */ |
| 1573 | /* In the PDL, don't use the padded size but the real packet size: */ |
| 1574 | ringptr->pdl[2] = skb->len; /* 1st Frag: Length of frag */ |
| 1575 | } |
| 1576 | /* Conversion to new PCI API : map skbuf data to PCI bus. |
| 1577 | * Doc says it's OK for EISA as well - Jean II */ |
| 1578 | ringptr->pdl[1] = ((u32) pci_map_single(lp->pci_dev, skb->data, ringptr->pdl[2], PCI_DMA_TODEVICE)); /* 1st Frag: Adr. of data */ |
| 1579 | |
| 1580 | /* Hand this PDL to the card. */ |
| 1581 | hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */ |
| 1582 | |
| 1583 | lp->txrcommit++; |
| 1584 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1585 | |
| 1586 | /* Update statistics */ |
| 1587 | lp->stats.tx_packets++; |
| 1588 | lp->stats.tx_bytes += skb->len; |
| 1589 | dev->trans_start = jiffies; |
| 1590 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 1591 | return NETDEV_TX_OK; |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1592 | |
| 1593 | drop: |
| 1594 | dev_kfree_skb(skb); |
| 1595 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1596 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | |
| 1599 | /* clean_txring checks if packets have been sent by the card by reading |
| 1600 | * the TX_PDL register from the performance page and comparing it to the |
| 1601 | * number of commited packets. It then frees the skb's of the packets that |
| 1602 | * obviously have been sent to the network. |
| 1603 | * |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1604 | * Needs the PERFORMANCE page selected. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | */ |
| 1606 | static void hp100_clean_txring(struct net_device *dev) |
| 1607 | { |
| 1608 | struct hp100_private *lp = netdev_priv(dev); |
| 1609 | int ioaddr = dev->base_addr; |
| 1610 | int donecount; |
| 1611 | |
| 1612 | #ifdef HP100_DEBUG_B |
| 1613 | hp100_outw(0x4211, TRACE); |
| 1614 | printk("hp100: %s: clean txring\n", dev->name); |
| 1615 | #endif |
| 1616 | |
| 1617 | /* How many PDLs have been transmitted? */ |
| 1618 | donecount = (lp->txrcommit) - hp100_inb(TX_PDL); |
| 1619 | |
| 1620 | #ifdef HP100_DEBUG |
| 1621 | if (donecount > MAX_TX_PDL) |
| 1622 | printk("hp100: %s: Warning: More PDLs transmitted than commited to card???\n", dev->name); |
| 1623 | #endif |
| 1624 | |
| 1625 | for (; 0 != donecount; donecount--) { |
| 1626 | #ifdef HP100_DEBUG_BM |
| 1627 | printk("hp100: %s: Free skb: data @0x%.8x txrcommit=0x%x TXPDL=0x%x, done=0x%x\n", |
| 1628 | dev->name, (u_int) lp->txrhead->skb->data, |
| 1629 | lp->txrcommit, hp100_inb(TX_PDL), donecount); |
| 1630 | #endif |
| 1631 | /* Conversion to new PCI API : NOP */ |
| 1632 | pci_unmap_single(lp->pci_dev, (dma_addr_t) lp->txrhead->pdl[1], lp->txrhead->pdl[2], PCI_DMA_TODEVICE); |
| 1633 | dev_kfree_skb_any(lp->txrhead->skb); |
| 1634 | lp->txrhead->skb = (void *) NULL; |
| 1635 | lp->txrhead = lp->txrhead->next; |
| 1636 | lp->txrcommit--; |
| 1637 | } |
| 1638 | } |
| 1639 | |
| 1640 | /* tx function for slave modes */ |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 1641 | static netdev_tx_t hp100_start_xmit(struct sk_buff *skb, |
| 1642 | struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1643 | { |
| 1644 | unsigned long flags; |
| 1645 | int i, ok_flag; |
| 1646 | int ioaddr = dev->base_addr; |
| 1647 | u_short val; |
| 1648 | struct hp100_private *lp = netdev_priv(dev); |
| 1649 | |
| 1650 | #ifdef HP100_DEBUG_B |
| 1651 | hp100_outw(0x4212, TRACE); |
| 1652 | printk("hp100: %s: start_xmit\n", dev->name); |
| 1653 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | if (skb->len <= 0) |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1655 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | |
| 1657 | if (hp100_check_lan(dev)) |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1658 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | |
| 1660 | /* If there is not enough free memory on the card... */ |
| 1661 | i = hp100_inl(TX_MEM_FREE) & 0x7fffffff; |
| 1662 | if (!(((i / 2) - 539) > (skb->len + 16) && (hp100_inb(TX_PKT_CNT) < 255))) { |
| 1663 | #ifdef HP100_DEBUG |
| 1664 | printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i); |
| 1665 | #endif |
| 1666 | /* not waited long enough since last failed tx try? */ |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 1667 | if (time_before(jiffies, dev->trans_start + HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | #ifdef HP100_DEBUG |
| 1669 | printk("hp100: %s: trans_start timing problem\n", |
| 1670 | dev->name); |
| 1671 | #endif |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1672 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | } |
| 1674 | if (lp->lan_type == HP100_LAN_100 && lp->hub_status < 0) { |
| 1675 | /* we have a 100Mb/s adapter but it isn't connected to hub */ |
| 1676 | printk("hp100: %s: login to 100Mb/s hub retry\n", dev->name); |
| 1677 | hp100_stop_interface(dev); |
| 1678 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1679 | hp100_start_interface(dev); |
| 1680 | } else { |
| 1681 | spin_lock_irqsave(&lp->lock, flags); |
| 1682 | hp100_ints_off(); /* Useful ? Jean II */ |
| 1683 | i = hp100_sense_lan(dev); |
| 1684 | hp100_ints_on(); |
| 1685 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1686 | if (i == HP100_LAN_ERR) |
| 1687 | printk("hp100: %s: link down detected\n", dev->name); |
| 1688 | else if (lp->lan_type != i) { /* cable change! */ |
| 1689 | /* it's very hard - all network setting must be changed!!! */ |
| 1690 | printk("hp100: %s: cable change 10Mb/s <-> 100Mb/s detected\n", dev->name); |
| 1691 | lp->lan_type = i; |
| 1692 | hp100_stop_interface(dev); |
| 1693 | if (lp->lan_type == HP100_LAN_100) |
| 1694 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1695 | hp100_start_interface(dev); |
| 1696 | } else { |
| 1697 | printk("hp100: %s: interface reset\n", dev->name); |
| 1698 | hp100_stop_interface(dev); |
| 1699 | if (lp->lan_type == HP100_LAN_100) |
| 1700 | lp->hub_status = hp100_login_to_vg_hub(dev, 0); |
| 1701 | hp100_start_interface(dev); |
| 1702 | mdelay(1); |
| 1703 | } |
| 1704 | } |
| 1705 | dev->trans_start = jiffies; |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1706 | goto drop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | } |
| 1708 | |
| 1709 | for (i = 0; i < 6000 && (hp100_inb(OPTION_MSW) & HP100_TX_CMD); i++) { |
| 1710 | #ifdef HP100_DEBUG_TX |
| 1711 | printk("hp100: %s: start_xmit: busy\n", dev->name); |
| 1712 | #endif |
| 1713 | } |
| 1714 | |
| 1715 | spin_lock_irqsave(&lp->lock, flags); |
| 1716 | hp100_ints_off(); |
| 1717 | val = hp100_inw(IRQ_STATUS); |
| 1718 | /* Ack / clear the interrupt TX_COMPLETE interrupt - this interrupt is set |
| 1719 | * when the current packet being transmitted on the wire is completed. */ |
| 1720 | hp100_outw(HP100_TX_COMPLETE, IRQ_STATUS); |
| 1721 | #ifdef HP100_DEBUG_TX |
| 1722 | printk("hp100: %s: start_xmit: irq_status=0x%.4x, irqmask=0x%.4x, len=%d\n", |
| 1723 | dev->name, val, hp100_inw(IRQ_MASK), (int) skb->len); |
| 1724 | #endif |
| 1725 | |
| 1726 | ok_flag = skb->len >= HP100_MIN_PACKET_SIZE; |
| 1727 | i = ok_flag ? skb->len : HP100_MIN_PACKET_SIZE; |
| 1728 | |
| 1729 | hp100_outw(i, DATA32); /* tell card the total packet length */ |
| 1730 | hp100_outw(i, FRAGMENT_LEN); /* and first/only fragment length */ |
| 1731 | |
| 1732 | if (lp->mode == 2) { /* memory mapped */ |
Al Viro | 450d86d | 2005-12-22 14:52:52 -0500 | [diff] [blame] | 1733 | /* Note: The J2585B needs alignment to 32bits here! */ |
| 1734 | memcpy_toio(lp->mem_ptr_virt, skb->data, (skb->len + 3) & ~3); |
| 1735 | if (!ok_flag) |
| 1736 | memset_io(lp->mem_ptr_virt, 0, HP100_MIN_PACKET_SIZE - skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | } else { /* programmed i/o */ |
| 1738 | outsl(ioaddr + HP100_REG_DATA32, skb->data, |
| 1739 | (skb->len + 3) >> 2); |
| 1740 | if (!ok_flag) |
| 1741 | for (i = (skb->len + 3) & ~3; i < HP100_MIN_PACKET_SIZE; i += 4) |
| 1742 | hp100_outl(0, DATA32); |
| 1743 | } |
| 1744 | |
| 1745 | hp100_outb(HP100_TX_CMD | HP100_SET_LB, OPTION_MSW); /* send packet */ |
| 1746 | |
| 1747 | lp->stats.tx_packets++; |
| 1748 | lp->stats.tx_bytes += skb->len; |
| 1749 | dev->trans_start = jiffies; |
| 1750 | hp100_ints_on(); |
| 1751 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1752 | |
| 1753 | dev_kfree_skb_any(skb); |
| 1754 | |
| 1755 | #ifdef HP100_DEBUG_TX |
| 1756 | printk("hp100: %s: start_xmit: end\n", dev->name); |
| 1757 | #endif |
| 1758 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 1759 | return NETDEV_TX_OK; |
Patrick McHardy | d77eeb7 | 2009-06-15 23:33:24 +0000 | [diff] [blame] | 1760 | |
| 1761 | drop: |
| 1762 | dev_kfree_skb(skb); |
| 1763 | return NETDEV_TX_OK; |
| 1764 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1766 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | |
| 1768 | /* |
| 1769 | * Receive Function (Non-Busmaster mode) |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1770 | * Called when an "Receive Packet" interrupt occurs, i.e. the receive |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | * packet counter is non-zero. |
| 1772 | * For non-busmaster, this function does the whole work of transfering |
| 1773 | * the packet to the host memory and then up to higher layers via skb |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1774 | * and netif_rx. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | */ |
| 1776 | |
| 1777 | static void hp100_rx(struct net_device *dev) |
| 1778 | { |
| 1779 | int packets, pkt_len; |
| 1780 | int ioaddr = dev->base_addr; |
| 1781 | struct hp100_private *lp = netdev_priv(dev); |
| 1782 | u_int header; |
| 1783 | struct sk_buff *skb; |
| 1784 | |
| 1785 | #ifdef DEBUG_B |
| 1786 | hp100_outw(0x4213, TRACE); |
| 1787 | printk("hp100: %s: rx\n", dev->name); |
| 1788 | #endif |
| 1789 | |
| 1790 | /* First get indication of received lan packet */ |
| 1791 | /* RX_PKT_CND indicates the number of packets which have been fully */ |
| 1792 | /* received onto the card but have not been fully transferred of the card */ |
| 1793 | packets = hp100_inb(RX_PKT_CNT); |
| 1794 | #ifdef HP100_DEBUG_RX |
| 1795 | if (packets > 1) |
| 1796 | printk("hp100: %s: rx: waiting packets = %d\n", dev->name, packets); |
| 1797 | #endif |
| 1798 | |
| 1799 | while (packets-- > 0) { |
| 1800 | /* If ADV_NXT_PKT is still set, we have to wait until the card has */ |
| 1801 | /* really advanced to the next packet. */ |
| 1802 | for (pkt_len = 0; pkt_len < 6000 && (hp100_inb(OPTION_MSW) & HP100_ADV_NXT_PKT); pkt_len++) { |
| 1803 | #ifdef HP100_DEBUG_RX |
| 1804 | printk ("hp100: %s: rx: busy, remaining packets = %d\n", dev->name, packets); |
| 1805 | #endif |
| 1806 | } |
| 1807 | |
| 1808 | /* First we get the header, which contains information about the */ |
| 1809 | /* actual length of the received packet. */ |
| 1810 | if (lp->mode == 2) { /* memory mapped mode */ |
Al Viro | 450d86d | 2005-12-22 14:52:52 -0500 | [diff] [blame] | 1811 | header = readl(lp->mem_ptr_virt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1812 | } else /* programmed i/o */ |
| 1813 | header = hp100_inl(DATA32); |
| 1814 | |
| 1815 | pkt_len = ((header & HP100_PKT_LEN_MASK) + 3) & ~3; |
| 1816 | |
| 1817 | #ifdef HP100_DEBUG_RX |
| 1818 | printk("hp100: %s: rx: new packet - length=%d, errors=0x%x, dest=0x%x\n", |
| 1819 | dev->name, header & HP100_PKT_LEN_MASK, |
| 1820 | (header >> 16) & 0xfff8, (header >> 16) & 7); |
| 1821 | #endif |
| 1822 | |
| 1823 | /* Now we allocate the skb and transfer the data into it. */ |
| 1824 | skb = dev_alloc_skb(pkt_len+2); |
| 1825 | if (skb == NULL) { /* Not enough memory->drop packet */ |
| 1826 | #ifdef HP100_DEBUG |
| 1827 | printk("hp100: %s: rx: couldn't allocate a sk_buff of size %d\n", |
| 1828 | dev->name, pkt_len); |
| 1829 | #endif |
| 1830 | lp->stats.rx_dropped++; |
| 1831 | } else { /* skb successfully allocated */ |
| 1832 | |
| 1833 | u_char *ptr; |
| 1834 | |
| 1835 | skb_reserve(skb,2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | |
| 1837 | /* ptr to start of the sk_buff data area */ |
| 1838 | skb_put(skb, pkt_len); |
| 1839 | ptr = skb->data; |
| 1840 | |
| 1841 | /* Now transfer the data from the card into that area */ |
Al Viro | 450d86d | 2005-12-22 14:52:52 -0500 | [diff] [blame] | 1842 | if (lp->mode == 2) |
| 1843 | memcpy_fromio(ptr, lp->mem_ptr_virt,pkt_len); |
| 1844 | else /* io mapped */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | insl(ioaddr + HP100_REG_DATA32, ptr, pkt_len >> 2); |
| 1846 | |
| 1847 | skb->protocol = eth_type_trans(skb, dev); |
| 1848 | |
| 1849 | #ifdef HP100_DEBUG_RX |
| 1850 | printk("hp100: %s: rx: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", |
| 1851 | dev->name, ptr[0], ptr[1], ptr[2], ptr[3], |
| 1852 | ptr[4], ptr[5], ptr[6], ptr[7], ptr[8], |
| 1853 | ptr[9], ptr[10], ptr[11]); |
| 1854 | #endif |
| 1855 | netif_rx(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | lp->stats.rx_packets++; |
| 1857 | lp->stats.rx_bytes += pkt_len; |
| 1858 | } |
| 1859 | |
| 1860 | /* Indicate the card that we have got the packet */ |
| 1861 | hp100_outb(HP100_ADV_NXT_PKT | HP100_SET_LB, OPTION_MSW); |
| 1862 | |
| 1863 | switch (header & 0x00070000) { |
| 1864 | case (HP100_MULTI_ADDR_HASH << 16): |
| 1865 | case (HP100_MULTI_ADDR_NO_HASH << 16): |
| 1866 | lp->stats.multicast++; |
| 1867 | break; |
| 1868 | } |
| 1869 | } /* end of while(there are packets) loop */ |
| 1870 | #ifdef HP100_DEBUG_RX |
| 1871 | printk("hp100_rx: %s: end\n", dev->name); |
| 1872 | #endif |
| 1873 | } |
| 1874 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1875 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | * Receive Function for Busmaster Mode |
| 1877 | */ |
| 1878 | static void hp100_rx_bm(struct net_device *dev) |
| 1879 | { |
| 1880 | int ioaddr = dev->base_addr; |
| 1881 | struct hp100_private *lp = netdev_priv(dev); |
| 1882 | hp100_ring_t *ptr; |
| 1883 | u_int header; |
| 1884 | int pkt_len; |
| 1885 | |
| 1886 | #ifdef HP100_DEBUG_B |
| 1887 | hp100_outw(0x4214, TRACE); |
| 1888 | printk("hp100: %s: rx_bm\n", dev->name); |
| 1889 | #endif |
| 1890 | |
| 1891 | #ifdef HP100_DEBUG |
| 1892 | if (0 == lp->rxrcommit) { |
| 1893 | printk("hp100: %s: rx_bm called although no PDLs were committed to adapter?\n", dev->name); |
| 1894 | return; |
| 1895 | } else |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1896 | /* RX_PKT_CNT states how many PDLs are currently formatted and available to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | * the cards BM engine */ |
| 1898 | if ((hp100_inw(RX_PKT_CNT) & 0x00ff) >= lp->rxrcommit) { |
| 1899 | printk("hp100: %s: More packets received than commited? RX_PKT_CNT=0x%x, commit=0x%x\n", |
| 1900 | dev->name, hp100_inw(RX_PKT_CNT) & 0x00ff, |
| 1901 | lp->rxrcommit); |
| 1902 | return; |
| 1903 | } |
| 1904 | #endif |
| 1905 | |
| 1906 | while ((lp->rxrcommit > hp100_inb(RX_PDL))) { |
| 1907 | /* |
| 1908 | * The packet was received into the pdl pointed to by lp->rxrhead ( |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1909 | * the oldest pdl in the ring |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | */ |
| 1911 | |
| 1912 | /* First we get the header, which contains information about the */ |
| 1913 | /* actual length of the received packet. */ |
| 1914 | |
| 1915 | ptr = lp->rxrhead; |
| 1916 | |
| 1917 | header = *(ptr->pdl - 1); |
| 1918 | pkt_len = (header & HP100_PKT_LEN_MASK); |
| 1919 | |
| 1920 | /* Conversion to new PCI API : NOP */ |
| 1921 | pci_unmap_single(lp->pci_dev, (dma_addr_t) ptr->pdl[3], MAX_ETHER_SIZE, PCI_DMA_FROMDEVICE); |
| 1922 | |
| 1923 | #ifdef HP100_DEBUG_BM |
| 1924 | printk("hp100: %s: rx_bm: header@0x%x=0x%x length=%d, errors=0x%x, dest=0x%x\n", |
| 1925 | dev->name, (u_int) (ptr->pdl - 1), (u_int) header, |
| 1926 | pkt_len, (header >> 16) & 0xfff8, (header >> 16) & 7); |
| 1927 | 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", |
| 1928 | dev->name, hp100_inb(RX_PDL), hp100_inb(TX_PDL), |
| 1929 | hp100_inb(RX_PKT_CNT), (u_int) * (ptr->pdl), |
| 1930 | (u_int) * (ptr->pdl + 3), (u_int) * (ptr->pdl + 4)); |
| 1931 | #endif |
| 1932 | |
| 1933 | if ((pkt_len >= MIN_ETHER_SIZE) && |
| 1934 | (pkt_len <= MAX_ETHER_SIZE)) { |
| 1935 | if (ptr->skb == NULL) { |
| 1936 | printk("hp100: %s: rx_bm: skb null\n", dev->name); |
| 1937 | /* can happen if we only allocated room for the pdh due to memory shortage. */ |
| 1938 | lp->stats.rx_dropped++; |
| 1939 | } else { |
| 1940 | skb_trim(ptr->skb, pkt_len); /* Shorten it */ |
| 1941 | ptr->skb->protocol = |
| 1942 | eth_type_trans(ptr->skb, dev); |
| 1943 | |
| 1944 | netif_rx(ptr->skb); /* Up and away... */ |
| 1945 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1946 | lp->stats.rx_packets++; |
| 1947 | lp->stats.rx_bytes += pkt_len; |
| 1948 | } |
| 1949 | |
| 1950 | switch (header & 0x00070000) { |
| 1951 | case (HP100_MULTI_ADDR_HASH << 16): |
| 1952 | case (HP100_MULTI_ADDR_NO_HASH << 16): |
| 1953 | lp->stats.multicast++; |
| 1954 | break; |
| 1955 | } |
| 1956 | } else { |
| 1957 | #ifdef HP100_DEBUG |
| 1958 | printk("hp100: %s: rx_bm: Received bad packet (length=%d)\n", dev->name, pkt_len); |
| 1959 | #endif |
| 1960 | if (ptr->skb != NULL) |
| 1961 | dev_kfree_skb_any(ptr->skb); |
| 1962 | lp->stats.rx_errors++; |
| 1963 | } |
| 1964 | |
| 1965 | lp->rxrhead = lp->rxrhead->next; |
| 1966 | |
| 1967 | /* Allocate a new rx PDL (so lp->rxrcommit stays the same) */ |
| 1968 | if (0 == hp100_build_rx_pdl(lp->rxrtail, dev)) { |
| 1969 | /* No space for skb, header can still be received. */ |
| 1970 | #ifdef HP100_DEBUG |
| 1971 | printk("hp100: %s: rx_bm: No space for new PDL.\n", dev->name); |
| 1972 | #endif |
| 1973 | return; |
| 1974 | } else { /* successfully allocated new PDL - put it in ringlist at tail. */ |
| 1975 | hp100_outl((u32) lp->rxrtail->pdl_paddr, RX_PDA); |
| 1976 | lp->rxrtail = lp->rxrtail->next; |
| 1977 | } |
| 1978 | |
| 1979 | } |
| 1980 | } |
| 1981 | |
| 1982 | /* |
| 1983 | * statistics |
| 1984 | */ |
| 1985 | static struct net_device_stats *hp100_get_stats(struct net_device *dev) |
| 1986 | { |
| 1987 | unsigned long flags; |
| 1988 | int ioaddr = dev->base_addr; |
| 1989 | struct hp100_private *lp = netdev_priv(dev); |
| 1990 | |
| 1991 | #ifdef HP100_DEBUG_B |
| 1992 | hp100_outw(0x4215, TRACE); |
| 1993 | #endif |
| 1994 | |
| 1995 | spin_lock_irqsave(&lp->lock, flags); |
| 1996 | hp100_ints_off(); /* Useful ? Jean II */ |
| 1997 | hp100_update_stats(dev); |
| 1998 | hp100_ints_on(); |
| 1999 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2000 | return &(lp->stats); |
| 2001 | } |
| 2002 | |
| 2003 | static void hp100_update_stats(struct net_device *dev) |
| 2004 | { |
| 2005 | int ioaddr = dev->base_addr; |
| 2006 | u_short val; |
| 2007 | struct hp100_private *lp = netdev_priv(dev); |
| 2008 | |
| 2009 | #ifdef HP100_DEBUG_B |
| 2010 | hp100_outw(0x4216, TRACE); |
| 2011 | printk("hp100: %s: update-stats\n", dev->name); |
| 2012 | #endif |
| 2013 | |
| 2014 | /* Note: Statistics counters clear when read. */ |
| 2015 | hp100_page(MAC_CTRL); |
| 2016 | val = hp100_inw(DROPPED) & 0x0fff; |
| 2017 | lp->stats.rx_errors += val; |
| 2018 | lp->stats.rx_over_errors += val; |
| 2019 | val = hp100_inb(CRC); |
| 2020 | lp->stats.rx_errors += val; |
| 2021 | lp->stats.rx_crc_errors += val; |
| 2022 | val = hp100_inb(ABORT); |
| 2023 | lp->stats.tx_errors += val; |
| 2024 | lp->stats.tx_aborted_errors += val; |
| 2025 | hp100_page(PERFORMANCE); |
| 2026 | } |
| 2027 | |
| 2028 | static void hp100_misc_interrupt(struct net_device *dev) |
| 2029 | { |
| 2030 | #ifdef HP100_DEBUG_B |
| 2031 | int ioaddr = dev->base_addr; |
| 2032 | #endif |
| 2033 | struct hp100_private *lp = netdev_priv(dev); |
| 2034 | |
| 2035 | #ifdef HP100_DEBUG_B |
| 2036 | int ioaddr = dev->base_addr; |
| 2037 | hp100_outw(0x4216, TRACE); |
| 2038 | printk("hp100: %s: misc_interrupt\n", dev->name); |
| 2039 | #endif |
| 2040 | |
| 2041 | /* Note: Statistics counters clear when read. */ |
| 2042 | lp->stats.rx_errors++; |
| 2043 | lp->stats.tx_errors++; |
| 2044 | } |
| 2045 | |
| 2046 | static void hp100_clear_stats(struct hp100_private *lp, int ioaddr) |
| 2047 | { |
| 2048 | unsigned long flags; |
| 2049 | |
| 2050 | #ifdef HP100_DEBUG_B |
| 2051 | hp100_outw(0x4217, TRACE); |
| 2052 | printk("hp100: %s: clear_stats\n", dev->name); |
| 2053 | #endif |
| 2054 | |
| 2055 | spin_lock_irqsave(&lp->lock, flags); |
| 2056 | hp100_page(MAC_CTRL); /* get all statistics bytes */ |
| 2057 | hp100_inw(DROPPED); |
| 2058 | hp100_inb(CRC); |
| 2059 | hp100_inb(ABORT); |
| 2060 | hp100_page(PERFORMANCE); |
| 2061 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2062 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2064 | |
| 2065 | /* |
| 2066 | * multicast setup |
| 2067 | */ |
| 2068 | |
| 2069 | /* |
| 2070 | * Set or clear the multicast filter for this adapter. |
| 2071 | */ |
| 2072 | |
| 2073 | static void hp100_set_multicast_list(struct net_device *dev) |
| 2074 | { |
| 2075 | unsigned long flags; |
| 2076 | int ioaddr = dev->base_addr; |
| 2077 | struct hp100_private *lp = netdev_priv(dev); |
| 2078 | |
| 2079 | #ifdef HP100_DEBUG_B |
| 2080 | hp100_outw(0x4218, TRACE); |
| 2081 | printk("hp100: %s: set_mc_list\n", dev->name); |
| 2082 | #endif |
| 2083 | |
| 2084 | spin_lock_irqsave(&lp->lock, flags); |
| 2085 | hp100_ints_off(); |
| 2086 | hp100_page(MAC_CTRL); |
| 2087 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); /* stop rx/tx */ |
| 2088 | |
| 2089 | if (dev->flags & IFF_PROMISC) { |
| 2090 | lp->mac2_mode = HP100_MAC2MODE6; /* promiscuous mode = get all good */ |
| 2091 | lp->mac1_mode = HP100_MAC1MODE6; /* packets on the net */ |
| 2092 | memset(&lp->hash_bytes, 0xff, 8); |
| 2093 | } else if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { |
| 2094 | lp->mac2_mode = HP100_MAC2MODE5; /* multicast mode = get packets for */ |
| 2095 | lp->mac1_mode = HP100_MAC1MODE5; /* me, broadcasts and all multicasts */ |
| 2096 | #ifdef HP100_MULTICAST_FILTER /* doesn't work!!! */ |
| 2097 | if (dev->flags & IFF_ALLMULTI) { |
| 2098 | /* set hash filter to receive all multicast packets */ |
| 2099 | memset(&lp->hash_bytes, 0xff, 8); |
| 2100 | } else { |
| 2101 | int i, j, idx; |
| 2102 | u_char *addrs; |
| 2103 | struct dev_mc_list *dmi; |
| 2104 | |
| 2105 | memset(&lp->hash_bytes, 0x00, 8); |
| 2106 | #ifdef HP100_DEBUG |
| 2107 | printk("hp100: %s: computing hash filter - mc_count = %i\n", dev->name, dev->mc_count); |
| 2108 | #endif |
| 2109 | for (i = 0, dmi = dev->mc_list; i < dev->mc_count; i++, dmi = dmi->next) { |
| 2110 | addrs = dmi->dmi_addr; |
| 2111 | if ((*addrs & 0x01) == 0x01) { /* multicast address? */ |
| 2112 | #ifdef HP100_DEBUG |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 2113 | printk("hp100: %s: multicast = %pM, ", |
| 2114 | dev->name, addrs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2115 | #endif |
| 2116 | for (j = idx = 0; j < 6; j++) { |
| 2117 | idx ^= *addrs++ & 0x3f; |
| 2118 | printk(":%02x:", idx); |
| 2119 | } |
| 2120 | #ifdef HP100_DEBUG |
| 2121 | printk("idx = %i\n", idx); |
| 2122 | #endif |
| 2123 | lp->hash_bytes[idx >> 3] |= (1 << (idx & 7)); |
| 2124 | } |
| 2125 | } |
| 2126 | } |
| 2127 | #else |
| 2128 | memset(&lp->hash_bytes, 0xff, 8); |
| 2129 | #endif |
| 2130 | } else { |
| 2131 | lp->mac2_mode = HP100_MAC2MODE3; /* normal mode = get packets for me */ |
| 2132 | lp->mac1_mode = HP100_MAC1MODE3; /* and broadcasts */ |
| 2133 | memset(&lp->hash_bytes, 0x00, 8); |
| 2134 | } |
| 2135 | |
| 2136 | if (((hp100_inb(MAC_CFG_1) & 0x0f) != lp->mac1_mode) || |
| 2137 | (hp100_inb(MAC_CFG_2) != lp->mac2_mode)) { |
| 2138 | int i; |
| 2139 | |
| 2140 | hp100_outb(lp->mac2_mode, MAC_CFG_2); |
| 2141 | hp100_andb(HP100_MAC1MODEMASK, MAC_CFG_1); /* clear mac1 mode bits */ |
| 2142 | hp100_orb(lp->mac1_mode, MAC_CFG_1); /* and set the new mode */ |
| 2143 | |
| 2144 | hp100_page(MAC_ADDRESS); |
| 2145 | for (i = 0; i < 8; i++) |
| 2146 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); |
| 2147 | #ifdef HP100_DEBUG |
| 2148 | printk("hp100: %s: mac1 = 0x%x, mac2 = 0x%x, multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", |
| 2149 | dev->name, lp->mac1_mode, lp->mac2_mode, |
| 2150 | lp->hash_bytes[0], lp->hash_bytes[1], |
| 2151 | lp->hash_bytes[2], lp->hash_bytes[3], |
| 2152 | lp->hash_bytes[4], lp->hash_bytes[5], |
| 2153 | lp->hash_bytes[6], lp->hash_bytes[7]); |
| 2154 | #endif |
| 2155 | |
| 2156 | if (lp->lan_type == HP100_LAN_100) { |
| 2157 | #ifdef HP100_DEBUG |
| 2158 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); |
| 2159 | #endif |
| 2160 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ |
| 2161 | } |
| 2162 | } else { |
| 2163 | int i; |
| 2164 | u_char old_hash_bytes[8]; |
| 2165 | |
| 2166 | hp100_page(MAC_ADDRESS); |
| 2167 | for (i = 0; i < 8; i++) |
| 2168 | old_hash_bytes[i] = hp100_inb(HASH_BYTE0 + i); |
| 2169 | if (memcmp(old_hash_bytes, &lp->hash_bytes, 8)) { |
| 2170 | for (i = 0; i < 8; i++) |
| 2171 | hp100_outb(lp->hash_bytes[i], HASH_BYTE0 + i); |
| 2172 | #ifdef HP100_DEBUG |
| 2173 | printk("hp100: %s: multicast hash = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", |
| 2174 | dev->name, lp->hash_bytes[0], |
| 2175 | lp->hash_bytes[1], lp->hash_bytes[2], |
| 2176 | lp->hash_bytes[3], lp->hash_bytes[4], |
| 2177 | lp->hash_bytes[5], lp->hash_bytes[6], |
| 2178 | lp->hash_bytes[7]); |
| 2179 | #endif |
| 2180 | |
| 2181 | if (lp->lan_type == HP100_LAN_100) { |
| 2182 | #ifdef HP100_DEBUG |
| 2183 | printk("hp100: %s: 100VG MAC settings have changed - relogin.\n", dev->name); |
| 2184 | #endif |
| 2185 | lp->hub_status = hp100_login_to_vg_hub(dev, 1); /* force a relogin to the hub */ |
| 2186 | } |
| 2187 | } |
| 2188 | } |
| 2189 | |
| 2190 | hp100_page(MAC_CTRL); |
| 2191 | hp100_orb(HP100_RX_EN | HP100_RX_IDLE | /* enable rx */ |
| 2192 | HP100_TX_EN | HP100_TX_IDLE, MAC_CFG_1); /* enable tx */ |
| 2193 | |
| 2194 | hp100_page(PERFORMANCE); |
| 2195 | hp100_ints_on(); |
| 2196 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2197 | } |
| 2198 | |
| 2199 | /* |
| 2200 | * hardware interrupt handling |
| 2201 | */ |
| 2202 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2203 | static irqreturn_t hp100_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | { |
| 2205 | struct net_device *dev = (struct net_device *) dev_id; |
| 2206 | struct hp100_private *lp = netdev_priv(dev); |
| 2207 | |
| 2208 | int ioaddr; |
| 2209 | u_int val; |
| 2210 | |
| 2211 | if (dev == NULL) |
| 2212 | return IRQ_NONE; |
| 2213 | ioaddr = dev->base_addr; |
| 2214 | |
| 2215 | spin_lock(&lp->lock); |
| 2216 | |
| 2217 | hp100_ints_off(); |
| 2218 | |
| 2219 | #ifdef HP100_DEBUG_B |
| 2220 | hp100_outw(0x4219, TRACE); |
| 2221 | #endif |
| 2222 | |
| 2223 | /* hp100_page( PERFORMANCE ); */ |
| 2224 | val = hp100_inw(IRQ_STATUS); |
| 2225 | #ifdef HP100_DEBUG_IRQ |
| 2226 | printk("hp100: %s: mode=%x,IRQ_STAT=0x%.4x,RXPKTCNT=0x%.2x RXPDL=0x%.2x TXPKTCNT=0x%.2x TXPDL=0x%.2x\n", |
| 2227 | dev->name, lp->mode, (u_int) val, hp100_inb(RX_PKT_CNT), |
| 2228 | hp100_inb(RX_PDL), hp100_inb(TX_PKT_CNT), hp100_inb(TX_PDL)); |
| 2229 | #endif |
| 2230 | |
| 2231 | if (val == 0) { /* might be a shared interrupt */ |
| 2232 | spin_unlock(&lp->lock); |
| 2233 | hp100_ints_on(); |
| 2234 | return IRQ_NONE; |
| 2235 | } |
| 2236 | /* We're only interested in those interrupts we really enabled. */ |
| 2237 | /* val &= hp100_inw( IRQ_MASK ); */ |
| 2238 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2239 | /* |
| 2240 | * RX_PDL_FILL_COMPL is set whenever a RX_PDL has been executed. A RX_PDL |
| 2241 | * is considered executed whenever the RX_PDL data structure is no longer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2242 | * needed. |
| 2243 | */ |
| 2244 | if (val & HP100_RX_PDL_FILL_COMPL) { |
| 2245 | if (lp->mode == 1) |
| 2246 | hp100_rx_bm(dev); |
| 2247 | else { |
| 2248 | printk("hp100: %s: rx_pdl_fill_compl interrupt although not busmaster?\n", dev->name); |
| 2249 | } |
| 2250 | } |
| 2251 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2252 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2253 | * The RX_PACKET interrupt is set, when the receive packet counter is |
| 2254 | * non zero. We use this interrupt for receiving in slave mode. In |
| 2255 | * busmaster mode, we use it to make sure we did not miss any rx_pdl_fill |
| 2256 | * interrupts. If rx_pdl_fill_compl is not set and rx_packet is set, then |
| 2257 | * we somehow have missed a rx_pdl_fill_compl interrupt. |
| 2258 | */ |
| 2259 | |
| 2260 | if (val & HP100_RX_PACKET) { /* Receive Packet Counter is non zero */ |
| 2261 | if (lp->mode != 1) /* non busmaster */ |
| 2262 | hp100_rx(dev); |
| 2263 | else if (!(val & HP100_RX_PDL_FILL_COMPL)) { |
| 2264 | /* Shouldnt happen - maybe we missed a RX_PDL_FILL Interrupt? */ |
| 2265 | hp100_rx_bm(dev); |
| 2266 | } |
| 2267 | } |
| 2268 | |
| 2269 | /* |
| 2270 | * Ack. that we have noticed the interrupt and thereby allow next one. |
| 2271 | * Note that this is now done after the slave rx function, since first |
| 2272 | * acknowledging and then setting ADV_NXT_PKT caused an extra interrupt |
| 2273 | * on the J2573. |
| 2274 | */ |
| 2275 | hp100_outw(val, IRQ_STATUS); |
| 2276 | |
| 2277 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2278 | * RX_ERROR is set when a packet is dropped due to no memory resources on |
| 2279 | * the card or when a RCV_ERR occurs. |
| 2280 | * TX_ERROR is set when a TX_ABORT condition occurs in the MAC->exists |
| 2281 | * only in the 802.3 MAC and happens when 16 collisions occur during a TX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | */ |
| 2283 | if (val & (HP100_TX_ERROR | HP100_RX_ERROR)) { |
| 2284 | #ifdef HP100_DEBUG_IRQ |
| 2285 | printk("hp100: %s: TX/RX Error IRQ\n", dev->name); |
| 2286 | #endif |
| 2287 | hp100_update_stats(dev); |
| 2288 | if (lp->mode == 1) { |
| 2289 | hp100_rxfill(dev); |
| 2290 | hp100_clean_txring(dev); |
| 2291 | } |
| 2292 | } |
| 2293 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2294 | /* |
| 2295 | * RX_PDA_ZERO is set when the PDA count goes from non-zero to zero. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | */ |
| 2297 | if ((lp->mode == 1) && (val & (HP100_RX_PDA_ZERO))) |
| 2298 | hp100_rxfill(dev); |
| 2299 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2300 | /* |
| 2301 | * HP100_TX_COMPLETE interrupt occurs when packet transmitted on wire |
| 2302 | * is completed |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | */ |
| 2304 | if ((lp->mode == 1) && (val & (HP100_TX_COMPLETE))) |
| 2305 | hp100_clean_txring(dev); |
| 2306 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2307 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2308 | * MISC_ERROR is set when either the LAN link goes down or a detected |
| 2309 | * bus error occurs. |
| 2310 | */ |
| 2311 | if (val & HP100_MISC_ERROR) { /* New for J2585B */ |
| 2312 | #ifdef HP100_DEBUG_IRQ |
| 2313 | printk |
| 2314 | ("hp100: %s: Misc. Error Interrupt - Check cabling.\n", |
| 2315 | dev->name); |
| 2316 | #endif |
| 2317 | if (lp->mode == 1) { |
| 2318 | hp100_clean_txring(dev); |
| 2319 | hp100_rxfill(dev); |
| 2320 | } |
| 2321 | hp100_misc_interrupt(dev); |
| 2322 | } |
| 2323 | |
| 2324 | spin_unlock(&lp->lock); |
| 2325 | hp100_ints_on(); |
| 2326 | return IRQ_HANDLED; |
| 2327 | } |
| 2328 | |
| 2329 | /* |
| 2330 | * some misc functions |
| 2331 | */ |
| 2332 | |
| 2333 | static void hp100_start_interface(struct net_device *dev) |
| 2334 | { |
| 2335 | unsigned long flags; |
| 2336 | int ioaddr = dev->base_addr; |
| 2337 | struct hp100_private *lp = netdev_priv(dev); |
| 2338 | |
| 2339 | #ifdef HP100_DEBUG_B |
| 2340 | hp100_outw(0x4220, TRACE); |
| 2341 | printk("hp100: %s: hp100_start_interface\n", dev->name); |
| 2342 | #endif |
| 2343 | |
| 2344 | spin_lock_irqsave(&lp->lock, flags); |
| 2345 | |
| 2346 | /* Ensure the adapter does not want to request an interrupt when */ |
| 2347 | /* enabling the IRQ line to be active on the bus (i.e. not tri-stated) */ |
| 2348 | hp100_page(PERFORMANCE); |
| 2349 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 2350 | hp100_outw(0xffff, IRQ_STATUS); /* ack all IRQs */ |
| 2351 | hp100_outw(HP100_FAKE_INT | HP100_INT_EN | HP100_RESET_LB, |
| 2352 | OPTION_LSW); |
| 2353 | /* Un Tri-state int. TODO: Check if shared interrupts can be realised? */ |
| 2354 | hp100_outw(HP100_TRI_INT | HP100_RESET_HB, OPTION_LSW); |
| 2355 | |
| 2356 | if (lp->mode == 1) { |
| 2357 | /* Make sure BM bit is set... */ |
| 2358 | hp100_page(HW_MAP); |
| 2359 | hp100_orb(HP100_BM_MASTER, BM); |
| 2360 | hp100_rxfill(dev); |
| 2361 | } else if (lp->mode == 2) { |
| 2362 | /* Enable memory mapping. Note: Don't do this when busmaster. */ |
| 2363 | hp100_outw(HP100_MMAP_DIS | HP100_RESET_HB, OPTION_LSW); |
| 2364 | } |
| 2365 | |
| 2366 | hp100_page(PERFORMANCE); |
| 2367 | hp100_outw(0xfefe, IRQ_MASK); /* mask off all ints */ |
| 2368 | hp100_outw(0xffff, IRQ_STATUS); /* ack IRQ */ |
| 2369 | |
| 2370 | /* enable a few interrupts: */ |
| 2371 | if (lp->mode == 1) { /* busmaster mode */ |
| 2372 | hp100_outw(HP100_RX_PDL_FILL_COMPL | |
| 2373 | HP100_RX_PDA_ZERO | HP100_RX_ERROR | |
| 2374 | /* HP100_RX_PACKET | */ |
| 2375 | /* HP100_RX_EARLY_INT | */ HP100_SET_HB | |
| 2376 | /* HP100_TX_PDA_ZERO | */ |
| 2377 | HP100_TX_COMPLETE | |
| 2378 | /* HP100_MISC_ERROR | */ |
| 2379 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); |
| 2380 | } else { |
| 2381 | hp100_outw(HP100_RX_PACKET | |
| 2382 | HP100_RX_ERROR | HP100_SET_HB | |
| 2383 | HP100_TX_ERROR | HP100_SET_LB, IRQ_MASK); |
| 2384 | } |
| 2385 | |
| 2386 | /* Note : before hp100_set_multicast_list(), because it will play with |
| 2387 | * spinlock itself... Jean II */ |
| 2388 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2389 | |
| 2390 | /* Enable MAC Tx and RX, set MAC modes, ... */ |
| 2391 | hp100_set_multicast_list(dev); |
| 2392 | } |
| 2393 | |
| 2394 | static void hp100_stop_interface(struct net_device *dev) |
| 2395 | { |
| 2396 | struct hp100_private *lp = netdev_priv(dev); |
| 2397 | int ioaddr = dev->base_addr; |
| 2398 | u_int val; |
| 2399 | |
| 2400 | #ifdef HP100_DEBUG_B |
| 2401 | printk("hp100: %s: hp100_stop_interface\n", dev->name); |
| 2402 | hp100_outw(0x4221, TRACE); |
| 2403 | #endif |
| 2404 | |
| 2405 | if (lp->mode == 1) |
| 2406 | hp100_BM_shutdown(dev); |
| 2407 | else { |
| 2408 | /* Note: MMAP_DIS will be reenabled by start_interface */ |
| 2409 | hp100_outw(HP100_INT_EN | HP100_RESET_LB | |
| 2410 | HP100_TRI_INT | HP100_MMAP_DIS | HP100_SET_HB, |
| 2411 | OPTION_LSW); |
| 2412 | val = hp100_inw(OPTION_LSW); |
| 2413 | |
| 2414 | hp100_page(MAC_CTRL); |
| 2415 | hp100_andb(~(HP100_RX_EN | HP100_TX_EN), MAC_CFG_1); |
| 2416 | |
| 2417 | if (!(val & HP100_HW_RST)) |
| 2418 | return; /* If reset, imm. return ... */ |
| 2419 | /* ... else: busy wait until idle */ |
| 2420 | for (val = 0; val < 6000; val++) |
| 2421 | if ((hp100_inb(MAC_CFG_1) & (HP100_TX_IDLE | HP100_RX_IDLE)) == (HP100_TX_IDLE | HP100_RX_IDLE)) { |
| 2422 | hp100_page(PERFORMANCE); |
| 2423 | return; |
| 2424 | } |
| 2425 | printk("hp100: %s: hp100_stop_interface - timeout\n", dev->name); |
| 2426 | hp100_page(PERFORMANCE); |
| 2427 | } |
| 2428 | } |
| 2429 | |
| 2430 | static void hp100_load_eeprom(struct net_device *dev, u_short probe_ioaddr) |
| 2431 | { |
| 2432 | int i; |
| 2433 | int ioaddr = probe_ioaddr > 0 ? probe_ioaddr : dev->base_addr; |
| 2434 | |
| 2435 | #ifdef HP100_DEBUG_B |
| 2436 | hp100_outw(0x4222, TRACE); |
| 2437 | #endif |
| 2438 | |
| 2439 | hp100_page(EEPROM_CTRL); |
| 2440 | hp100_andw(~HP100_EEPROM_LOAD, EEPROM_CTRL); |
| 2441 | hp100_orw(HP100_EEPROM_LOAD, EEPROM_CTRL); |
| 2442 | for (i = 0; i < 10000; i++) |
| 2443 | if (!(hp100_inb(OPTION_MSW) & HP100_EE_LOAD)) |
| 2444 | return; |
| 2445 | printk("hp100: %s: hp100_load_eeprom - timeout\n", dev->name); |
| 2446 | } |
| 2447 | |
| 2448 | /* Sense connection status. |
| 2449 | * return values: LAN_10 - Connected to 10Mbit/s network |
| 2450 | * LAN_100 - Connected to 100Mbit/s network |
| 2451 | * LAN_ERR - not connected or 100Mbit/s Hub down |
| 2452 | */ |
| 2453 | static int hp100_sense_lan(struct net_device *dev) |
| 2454 | { |
| 2455 | int ioaddr = dev->base_addr; |
| 2456 | u_short val_VG, val_10; |
| 2457 | struct hp100_private *lp = netdev_priv(dev); |
| 2458 | |
| 2459 | #ifdef HP100_DEBUG_B |
| 2460 | hp100_outw(0x4223, TRACE); |
| 2461 | #endif |
| 2462 | |
| 2463 | hp100_page(MAC_CTRL); |
| 2464 | val_10 = hp100_inb(10_LAN_CFG_1); |
| 2465 | val_VG = hp100_inb(VG_LAN_CFG_1); |
| 2466 | hp100_page(PERFORMANCE); |
| 2467 | #ifdef HP100_DEBUG |
| 2468 | printk("hp100: %s: sense_lan: val_VG = 0x%04x, val_10 = 0x%04x\n", |
| 2469 | dev->name, val_VG, val_10); |
| 2470 | #endif |
| 2471 | |
| 2472 | if (val_10 & HP100_LINK_BEAT_ST) /* 10Mb connection is active */ |
| 2473 | return HP100_LAN_10; |
| 2474 | |
| 2475 | if (val_10 & HP100_AUI_ST) { /* have we BNC or AUI onboard? */ |
| 2476 | /* |
| 2477 | * This can be overriden by dos utility, so if this has no effect, |
| 2478 | * perhaps you need to download that utility from HP and set card |
| 2479 | * back to "auto detect". |
| 2480 | */ |
| 2481 | val_10 |= HP100_AUI_SEL | HP100_LOW_TH; |
| 2482 | hp100_page(MAC_CTRL); |
| 2483 | hp100_outb(val_10, 10_LAN_CFG_1); |
| 2484 | hp100_page(PERFORMANCE); |
| 2485 | return HP100_LAN_COAX; |
| 2486 | } |
| 2487 | |
| 2488 | /* Those cards don't have a 100 Mbit connector */ |
| 2489 | if ( !strcmp(lp->id, "HWP1920") || |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2490 | (lp->pci_dev && |
| 2491 | lp->pci_dev->vendor == PCI_VENDOR_ID && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2492 | (lp->pci_dev->device == PCI_DEVICE_ID_HP_J2970A || |
| 2493 | lp->pci_dev->device == PCI_DEVICE_ID_HP_J2973A))) |
| 2494 | return HP100_LAN_ERR; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2495 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2496 | if (val_VG & HP100_LINK_CABLE_ST) /* Can hear the HUBs tone. */ |
| 2497 | return HP100_LAN_100; |
| 2498 | return HP100_LAN_ERR; |
| 2499 | } |
| 2500 | |
| 2501 | static int hp100_down_vg_link(struct net_device *dev) |
| 2502 | { |
| 2503 | struct hp100_private *lp = netdev_priv(dev); |
| 2504 | int ioaddr = dev->base_addr; |
| 2505 | unsigned long time; |
| 2506 | long savelan, newlan; |
| 2507 | |
| 2508 | #ifdef HP100_DEBUG_B |
| 2509 | hp100_outw(0x4224, TRACE); |
| 2510 | printk("hp100: %s: down_vg_link\n", dev->name); |
| 2511 | #endif |
| 2512 | |
| 2513 | hp100_page(MAC_CTRL); |
| 2514 | time = jiffies + (HZ / 4); |
| 2515 | do { |
| 2516 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) |
| 2517 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2518 | if (!in_interrupt()) |
| 2519 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2520 | } while (time_after(time, jiffies)); |
| 2521 | |
| 2522 | if (time_after_eq(jiffies, time)) /* no signal->no logout */ |
| 2523 | return 0; |
| 2524 | |
| 2525 | /* Drop the VG Link by clearing the link up cmd and load addr. */ |
| 2526 | |
| 2527 | hp100_andb(~(HP100_LOAD_ADDR | HP100_LINK_CMD), VG_LAN_CFG_1); |
| 2528 | hp100_orb(HP100_VG_SEL, VG_LAN_CFG_1); |
| 2529 | |
| 2530 | /* Conditionally stall for >250ms on Link-Up Status (to go down) */ |
| 2531 | time = jiffies + (HZ / 2); |
| 2532 | do { |
| 2533 | if (!(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) |
| 2534 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2535 | if (!in_interrupt()) |
| 2536 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | } while (time_after(time, jiffies)); |
| 2538 | |
| 2539 | #ifdef HP100_DEBUG |
| 2540 | if (time_after_eq(jiffies, time)) |
| 2541 | printk("hp100: %s: down_vg_link: Link does not go down?\n", dev->name); |
| 2542 | #endif |
| 2543 | |
| 2544 | /* To prevent condition where Rev 1 VG MAC and old hubs do not complete */ |
| 2545 | /* logout under traffic (even though all the status bits are cleared), */ |
| 2546 | /* do this workaround to get the Rev 1 MAC in its idle state */ |
| 2547 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2548 | /* Reset VG MAC to insure it leaves the logoff state even if */ |
| 2549 | /* the Hub is still emitting tones */ |
| 2550 | hp100_andb(~HP100_VG_RESET, VG_LAN_CFG_1); |
| 2551 | udelay(1500); /* wait for >1ms */ |
| 2552 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); /* Release Reset */ |
| 2553 | udelay(1500); |
| 2554 | } |
| 2555 | |
| 2556 | /* New: For lassen, switch to 10 Mbps mac briefly to clear training ACK */ |
| 2557 | /* to get the VG mac to full reset. This is not req.d with later chips */ |
| 2558 | /* Note: It will take the between 1 and 2 seconds for the VG mac to be */ |
| 2559 | /* selected again! This will be left to the connect hub function to */ |
| 2560 | /* perform if desired. */ |
| 2561 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2562 | /* Have to write to 10 and 100VG control registers simultaneously */ |
| 2563 | savelan = newlan = hp100_inl(10_LAN_CFG_1); /* read 10+100 LAN_CFG regs */ |
| 2564 | newlan &= ~(HP100_VG_SEL << 16); |
| 2565 | newlan |= (HP100_DOT3_MAC) << 8; |
| 2566 | hp100_andb(~HP100_AUTO_MODE, MAC_CFG_3); /* Autosel off */ |
| 2567 | hp100_outl(newlan, 10_LAN_CFG_1); |
| 2568 | |
| 2569 | /* Conditionally stall for 5sec on VG selected. */ |
| 2570 | time = jiffies + (HZ * 5); |
| 2571 | do { |
| 2572 | if (!(hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) |
| 2573 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2574 | if (!in_interrupt()) |
| 2575 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2576 | } while (time_after(time, jiffies)); |
| 2577 | |
| 2578 | hp100_orb(HP100_AUTO_MODE, MAC_CFG_3); /* Autosel back on */ |
| 2579 | hp100_outl(savelan, 10_LAN_CFG_1); |
| 2580 | } |
| 2581 | |
| 2582 | time = jiffies + (3 * HZ); /* Timeout 3s */ |
| 2583 | do { |
| 2584 | if ((hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) == 0) |
| 2585 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2586 | if (!in_interrupt()) |
| 2587 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2588 | } while (time_after(time, jiffies)); |
| 2589 | |
| 2590 | if (time_before_eq(time, jiffies)) { |
| 2591 | #ifdef HP100_DEBUG |
| 2592 | printk("hp100: %s: down_vg_link: timeout\n", dev->name); |
| 2593 | #endif |
| 2594 | return -EIO; |
| 2595 | } |
| 2596 | |
| 2597 | time = jiffies + (2 * HZ); /* This seems to take a while.... */ |
| 2598 | do { |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2599 | if (!in_interrupt()) |
| 2600 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | } while (time_after(time, jiffies)); |
| 2602 | |
| 2603 | return 0; |
| 2604 | } |
| 2605 | |
| 2606 | static int hp100_login_to_vg_hub(struct net_device *dev, u_short force_relogin) |
| 2607 | { |
| 2608 | int ioaddr = dev->base_addr; |
| 2609 | struct hp100_private *lp = netdev_priv(dev); |
| 2610 | u_short val = 0; |
| 2611 | unsigned long time; |
| 2612 | int startst; |
| 2613 | |
| 2614 | #ifdef HP100_DEBUG_B |
| 2615 | hp100_outw(0x4225, TRACE); |
| 2616 | printk("hp100: %s: login_to_vg_hub\n", dev->name); |
| 2617 | #endif |
| 2618 | |
| 2619 | /* Initiate a login sequence iff VG MAC is enabled and either Load Address |
| 2620 | * bit is zero or the force relogin flag is set (e.g. due to MAC address or |
| 2621 | * promiscuous mode change) |
| 2622 | */ |
| 2623 | hp100_page(MAC_CTRL); |
| 2624 | startst = hp100_inb(VG_LAN_CFG_1); |
| 2625 | if ((force_relogin == 1) || (hp100_inb(MAC_CFG_4) & HP100_MAC_SEL_ST)) { |
| 2626 | #ifdef HP100_DEBUG_TRAINING |
| 2627 | printk("hp100: %s: Start training\n", dev->name); |
| 2628 | #endif |
| 2629 | |
| 2630 | /* Ensure VG Reset bit is 1 (i.e., do not reset) */ |
| 2631 | hp100_orb(HP100_VG_RESET, VG_LAN_CFG_1); |
| 2632 | |
| 2633 | /* If Lassen AND auto-select-mode AND VG tones were sensed on */ |
| 2634 | /* entry then temporarily put them into force 100Mbit mode */ |
| 2635 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) |
| 2636 | hp100_andb(~HP100_DOT3_MAC, 10_LAN_CFG_2); |
| 2637 | |
| 2638 | /* Drop the VG link by zeroing Link Up Command and Load Address */ |
| 2639 | hp100_andb(~(HP100_LINK_CMD /* |HP100_LOAD_ADDR */ ), VG_LAN_CFG_1); |
| 2640 | |
| 2641 | #ifdef HP100_DEBUG_TRAINING |
| 2642 | printk("hp100: %s: Bring down the link\n", dev->name); |
| 2643 | #endif |
| 2644 | |
| 2645 | /* Wait for link to drop */ |
| 2646 | time = jiffies + (HZ / 10); |
| 2647 | do { |
| 2648 | if (~(hp100_inb(VG_LAN_CFG_1) & HP100_LINK_UP_ST)) |
| 2649 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2650 | if (!in_interrupt()) |
| 2651 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2652 | } while (time_after(time, jiffies)); |
| 2653 | |
| 2654 | /* Start an addressed training and optionally request promiscuous port */ |
| 2655 | if ((dev->flags) & IFF_PROMISC) { |
| 2656 | hp100_orb(HP100_PROM_MODE, VG_LAN_CFG_2); |
| 2657 | if (lp->chip == HP100_CHIPID_LASSEN) |
| 2658 | hp100_orw(HP100_MACRQ_PROMSC, TRAIN_REQUEST); |
| 2659 | } else { |
| 2660 | hp100_andb(~HP100_PROM_MODE, VG_LAN_CFG_2); |
| 2661 | /* For ETR parts we need to reset the prom. bit in the training |
| 2662 | * register, otherwise promiscious mode won't be disabled. |
| 2663 | */ |
| 2664 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2665 | hp100_andw(~HP100_MACRQ_PROMSC, TRAIN_REQUEST); |
| 2666 | } |
| 2667 | } |
| 2668 | |
| 2669 | /* With ETR parts, frame format request bits can be set. */ |
| 2670 | if (lp->chip == HP100_CHIPID_LASSEN) |
| 2671 | hp100_orb(HP100_MACRQ_FRAMEFMT_EITHER, TRAIN_REQUEST); |
| 2672 | |
| 2673 | hp100_orb(HP100_LINK_CMD | HP100_LOAD_ADDR | HP100_VG_RESET, VG_LAN_CFG_1); |
| 2674 | |
| 2675 | /* Note: Next wait could be omitted for Hood and earlier chips under */ |
| 2676 | /* certain circumstances */ |
| 2677 | /* TODO: check if hood/earlier and skip wait. */ |
| 2678 | |
| 2679 | /* Wait for either short timeout for VG tones or long for login */ |
| 2680 | /* Wait for the card hardware to signalise link cable status ok... */ |
| 2681 | hp100_page(MAC_CTRL); |
| 2682 | time = jiffies + (1 * HZ); /* 1 sec timeout for cable st */ |
| 2683 | do { |
| 2684 | if (hp100_inb(VG_LAN_CFG_1) & HP100_LINK_CABLE_ST) |
| 2685 | break; |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2686 | if (!in_interrupt()) |
| 2687 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2688 | } while (time_before(jiffies, time)); |
| 2689 | |
| 2690 | if (time_after_eq(jiffies, time)) { |
| 2691 | #ifdef HP100_DEBUG_TRAINING |
| 2692 | printk("hp100: %s: Link cable status not ok? Training aborted.\n", dev->name); |
| 2693 | #endif |
| 2694 | } else { |
| 2695 | #ifdef HP100_DEBUG_TRAINING |
| 2696 | printk |
| 2697 | ("hp100: %s: HUB tones detected. Trying to train.\n", |
| 2698 | dev->name); |
| 2699 | #endif |
| 2700 | |
| 2701 | time = jiffies + (2 * HZ); /* again a timeout */ |
| 2702 | do { |
| 2703 | val = hp100_inb(VG_LAN_CFG_1); |
| 2704 | if ((val & (HP100_LINK_UP_ST))) { |
| 2705 | #ifdef HP100_DEBUG_TRAINING |
| 2706 | printk("hp100: %s: Passed training.\n", dev->name); |
| 2707 | #endif |
| 2708 | break; |
| 2709 | } |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 2710 | if (!in_interrupt()) |
| 2711 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2712 | } while (time_after(time, jiffies)); |
| 2713 | } |
| 2714 | |
| 2715 | /* If LINK_UP_ST is set, then we are logged into the hub. */ |
| 2716 | if (time_before_eq(jiffies, time) && (val & HP100_LINK_UP_ST)) { |
| 2717 | #ifdef HP100_DEBUG_TRAINING |
| 2718 | printk("hp100: %s: Successfully logged into the HUB.\n", dev->name); |
| 2719 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2720 | val = hp100_inw(TRAIN_ALLOW); |
| 2721 | printk("hp100: %s: Card supports 100VG MAC Version \"%s\" ", |
| 2722 | dev->name, (hp100_inw(TRAIN_REQUEST) & HP100_CARD_MACVER) ? "802.12" : "Pre"); |
| 2723 | printk("Driver will use MAC Version \"%s\"\n", (val & HP100_HUB_MACVER) ? "802.12" : "Pre"); |
| 2724 | printk("hp100: %s: Frame format is %s.\n", dev->name, (val & HP100_MALLOW_FRAMEFMT) ? "802.5" : "802.3"); |
| 2725 | } |
| 2726 | #endif |
| 2727 | } else { |
| 2728 | /* If LINK_UP_ST is not set, login was not successful */ |
| 2729 | printk("hp100: %s: Problem logging into the HUB.\n", dev->name); |
| 2730 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2731 | /* Check allowed Register to find out why there is a problem. */ |
| 2732 | val = hp100_inw(TRAIN_ALLOW); /* won't work on non-ETR card */ |
| 2733 | #ifdef HP100_DEBUG_TRAINING |
| 2734 | printk("hp100: %s: MAC Configuration requested: 0x%04x, HUB allowed: 0x%04x\n", dev->name, hp100_inw(TRAIN_REQUEST), val); |
| 2735 | #endif |
| 2736 | if (val & HP100_MALLOW_ACCDENIED) |
| 2737 | printk("hp100: %s: HUB access denied.\n", dev->name); |
| 2738 | if (val & HP100_MALLOW_CONFIGURE) |
| 2739 | printk("hp100: %s: MAC Configuration is incompatible with the Network.\n", dev->name); |
| 2740 | if (val & HP100_MALLOW_DUPADDR) |
| 2741 | printk("hp100: %s: Duplicate MAC Address on the Network.\n", dev->name); |
| 2742 | } |
| 2743 | } |
| 2744 | |
| 2745 | /* If we have put the chip into forced 100 Mbit mode earlier, go back */ |
| 2746 | /* to auto-select mode */ |
| 2747 | |
| 2748 | if ((lp->chip == HP100_CHIPID_LASSEN) && (startst & HP100_LINK_CABLE_ST)) { |
| 2749 | hp100_page(MAC_CTRL); |
| 2750 | hp100_orb(HP100_DOT3_MAC, 10_LAN_CFG_2); |
| 2751 | } |
| 2752 | |
| 2753 | val = hp100_inb(VG_LAN_CFG_1); |
| 2754 | |
| 2755 | /* Clear the MISC_ERROR Interrupt, which might be generated when doing the relogin */ |
| 2756 | hp100_page(PERFORMANCE); |
| 2757 | hp100_outw(HP100_MISC_ERROR, IRQ_STATUS); |
| 2758 | |
| 2759 | if (val & HP100_LINK_UP_ST) |
| 2760 | return (0); /* login was ok */ |
| 2761 | else { |
| 2762 | printk("hp100: %s: Training failed.\n", dev->name); |
| 2763 | hp100_down_vg_link(dev); |
| 2764 | return -EIO; |
| 2765 | } |
| 2766 | } |
| 2767 | /* no forced relogin & already link there->no training. */ |
| 2768 | return -EIO; |
| 2769 | } |
| 2770 | |
| 2771 | static void hp100_cascade_reset(struct net_device *dev, u_short enable) |
| 2772 | { |
| 2773 | int ioaddr = dev->base_addr; |
| 2774 | struct hp100_private *lp = netdev_priv(dev); |
| 2775 | |
| 2776 | #ifdef HP100_DEBUG_B |
| 2777 | hp100_outw(0x4226, TRACE); |
| 2778 | printk("hp100: %s: cascade_reset\n", dev->name); |
| 2779 | #endif |
| 2780 | |
| 2781 | if (enable) { |
| 2782 | hp100_outw(HP100_HW_RST | HP100_RESET_LB, OPTION_LSW); |
| 2783 | if (lp->chip == HP100_CHIPID_LASSEN) { |
| 2784 | /* Lassen requires a PCI transmit fifo reset */ |
| 2785 | hp100_page(HW_MAP); |
| 2786 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); |
| 2787 | hp100_orb(HP100_PCI_RESET, PCICTRL2); |
| 2788 | /* Wait for min. 300 ns */ |
| 2789 | /* we can't use jiffies here, because it may be */ |
| 2790 | /* that we have disabled the timer... */ |
| 2791 | udelay(400); |
| 2792 | hp100_andb(~HP100_PCI_RESET, PCICTRL2); |
| 2793 | hp100_page(PERFORMANCE); |
| 2794 | } |
| 2795 | } else { /* bring out of reset */ |
| 2796 | hp100_outw(HP100_HW_RST | HP100_SET_LB, OPTION_LSW); |
| 2797 | udelay(400); |
| 2798 | hp100_page(PERFORMANCE); |
| 2799 | } |
| 2800 | } |
| 2801 | |
| 2802 | #ifdef HP100_DEBUG |
| 2803 | void hp100_RegisterDump(struct net_device *dev) |
| 2804 | { |
| 2805 | int ioaddr = dev->base_addr; |
| 2806 | int Page; |
| 2807 | int Register; |
| 2808 | |
| 2809 | /* Dump common registers */ |
| 2810 | printk("hp100: %s: Cascade Register Dump\n", dev->name); |
| 2811 | printk("hardware id #1: 0x%.2x\n", hp100_inb(HW_ID)); |
| 2812 | printk("hardware id #2/paging: 0x%.2x\n", hp100_inb(PAGING)); |
| 2813 | printk("option #1: 0x%.4x\n", hp100_inw(OPTION_LSW)); |
| 2814 | printk("option #2: 0x%.4x\n", hp100_inw(OPTION_MSW)); |
| 2815 | |
| 2816 | /* Dump paged registers */ |
| 2817 | for (Page = 0; Page < 8; Page++) { |
| 2818 | /* Dump registers */ |
| 2819 | printk("page: 0x%.2x\n", Page); |
| 2820 | outw(Page, ioaddr + 0x02); |
| 2821 | for (Register = 0x8; Register < 0x22; Register += 2) { |
| 2822 | /* Display Register contents except data port */ |
| 2823 | if (((Register != 0x10) && (Register != 0x12)) || (Page > 0)) { |
| 2824 | printk("0x%.2x = 0x%.4x\n", Register, inw(ioaddr + Register)); |
| 2825 | } |
| 2826 | } |
| 2827 | } |
| 2828 | hp100_page(PERFORMANCE); |
| 2829 | } |
| 2830 | #endif |
| 2831 | |
| 2832 | |
| 2833 | static void cleanup_dev(struct net_device *d) |
| 2834 | { |
| 2835 | struct hp100_private *p = netdev_priv(d); |
| 2836 | |
| 2837 | unregister_netdev(d); |
| 2838 | release_region(d->base_addr, HP100_REGION_SIZE); |
| 2839 | |
| 2840 | if (p->mode == 1) /* busmaster */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2841 | pci_free_consistent(p->pci_dev, MAX_RINGSIZE + 0x0f, |
| 2842 | p->page_vaddr_algn, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2843 | virt_to_whatever(d, p->page_vaddr_algn)); |
| 2844 | if (p->mem_ptr_virt) |
| 2845 | iounmap(p->mem_ptr_virt); |
| 2846 | |
| 2847 | free_netdev(d); |
| 2848 | } |
| 2849 | |
| 2850 | #ifdef CONFIG_EISA |
| 2851 | static int __init hp100_eisa_probe (struct device *gendev) |
| 2852 | { |
| 2853 | struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private)); |
| 2854 | struct eisa_device *edev = to_eisa_device(gendev); |
| 2855 | int err; |
| 2856 | |
| 2857 | if (!dev) |
| 2858 | return -ENOMEM; |
| 2859 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2860 | SET_NETDEV_DEV(dev, &edev->dev); |
| 2861 | |
| 2862 | err = hp100_probe1(dev, edev->base_addr + 0xC38, HP100_BUS_EISA, NULL); |
| 2863 | if (err) |
| 2864 | goto out1; |
| 2865 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2866 | #ifdef HP100_DEBUG |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2867 | printk("hp100: %s: EISA adapter found at 0x%x\n", dev->name, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2868 | dev->base_addr); |
| 2869 | #endif |
Greg Kroah-Hartman | 1aec5bd | 2009-04-30 12:19:31 +0000 | [diff] [blame] | 2870 | dev_set_drvdata(gendev, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2871 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2872 | out1: |
| 2873 | free_netdev(dev); |
| 2874 | return err; |
| 2875 | } |
| 2876 | |
| 2877 | static int __devexit hp100_eisa_remove (struct device *gendev) |
| 2878 | { |
Greg Kroah-Hartman | 1aec5bd | 2009-04-30 12:19:31 +0000 | [diff] [blame] | 2879 | struct net_device *dev = dev_get_drvdata(gendev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2880 | cleanup_dev(dev); |
| 2881 | return 0; |
| 2882 | } |
| 2883 | |
| 2884 | static struct eisa_driver hp100_eisa_driver = { |
| 2885 | .id_table = hp100_eisa_tbl, |
| 2886 | .driver = { |
| 2887 | .name = "hp100", |
| 2888 | .probe = hp100_eisa_probe, |
| 2889 | .remove = __devexit_p (hp100_eisa_remove), |
| 2890 | } |
| 2891 | }; |
| 2892 | #endif |
| 2893 | |
| 2894 | #ifdef CONFIG_PCI |
| 2895 | static int __devinit hp100_pci_probe (struct pci_dev *pdev, |
| 2896 | const struct pci_device_id *ent) |
| 2897 | { |
| 2898 | struct net_device *dev; |
| 2899 | int ioaddr; |
| 2900 | u_short pci_command; |
| 2901 | int err; |
| 2902 | |
| 2903 | if (pci_enable_device(pdev)) |
| 2904 | return -ENODEV; |
| 2905 | |
| 2906 | dev = alloc_etherdev(sizeof(struct hp100_private)); |
| 2907 | if (!dev) { |
| 2908 | err = -ENOMEM; |
| 2909 | goto out0; |
| 2910 | } |
| 2911 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2912 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 2913 | |
| 2914 | pci_read_config_word(pdev, PCI_COMMAND, &pci_command); |
| 2915 | if (!(pci_command & PCI_COMMAND_IO)) { |
| 2916 | #ifdef HP100_DEBUG |
| 2917 | printk("hp100: %s: PCI I/O Bit has not been set. Setting...\n", dev->name); |
| 2918 | #endif |
| 2919 | pci_command |= PCI_COMMAND_IO; |
| 2920 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); |
| 2921 | } |
| 2922 | |
| 2923 | if (!(pci_command & PCI_COMMAND_MASTER)) { |
| 2924 | #ifdef HP100_DEBUG |
| 2925 | printk("hp100: %s: PCI Master Bit has not been set. Setting...\n", dev->name); |
| 2926 | #endif |
| 2927 | pci_command |= PCI_COMMAND_MASTER; |
| 2928 | pci_write_config_word(pdev, PCI_COMMAND, pci_command); |
| 2929 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2930 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2931 | ioaddr = pci_resource_start(pdev, 0); |
| 2932 | err = hp100_probe1(dev, ioaddr, HP100_BUS_PCI, pdev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2933 | if (err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2934 | goto out1; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2935 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2936 | #ifdef HP100_DEBUG |
| 2937 | printk("hp100: %s: PCI adapter found at 0x%x\n", dev->name, ioaddr); |
| 2938 | #endif |
| 2939 | pci_set_drvdata(pdev, dev); |
| 2940 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2941 | out1: |
| 2942 | free_netdev(dev); |
| 2943 | out0: |
| 2944 | pci_disable_device(pdev); |
| 2945 | return err; |
| 2946 | } |
| 2947 | |
| 2948 | static void __devexit hp100_pci_remove (struct pci_dev *pdev) |
| 2949 | { |
| 2950 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2951 | |
| 2952 | cleanup_dev(dev); |
| 2953 | pci_disable_device(pdev); |
| 2954 | } |
| 2955 | |
| 2956 | |
| 2957 | static struct pci_driver hp100_pci_driver = { |
| 2958 | .name = "hp100", |
| 2959 | .id_table = hp100_pci_tbl, |
| 2960 | .probe = hp100_pci_probe, |
| 2961 | .remove = __devexit_p(hp100_pci_remove), |
| 2962 | }; |
| 2963 | #endif |
| 2964 | |
| 2965 | /* |
| 2966 | * module section |
| 2967 | */ |
| 2968 | |
| 2969 | MODULE_LICENSE("GPL"); |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 2970 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2971 | "Siegfried \"Frieder\" Loeffler (dg1sek) <floeff@mathematik.uni-stuttgart.de>"); |
| 2972 | MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adapters"); |
| 2973 | |
| 2974 | /* |
| 2975 | * Note: to register three isa devices, use: |
| 2976 | * option hp100 hp100_port=0,0,0 |
| 2977 | * to register one card at io 0x280 as eth239, use: |
| 2978 | * option hp100 hp100_port=0x280 |
| 2979 | */ |
| 2980 | #if defined(MODULE) && defined(CONFIG_ISA) |
| 2981 | #define HP100_DEVICES 5 |
| 2982 | /* Parameters set by insmod */ |
| 2983 | static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 }; |
| 2984 | module_param_array(hp100_port, int, NULL, 0); |
| 2985 | |
| 2986 | /* List of devices */ |
| 2987 | static struct net_device *hp100_devlist[HP100_DEVICES]; |
| 2988 | |
| 2989 | static int __init hp100_isa_init(void) |
| 2990 | { |
| 2991 | struct net_device *dev; |
| 2992 | int i, err, cards = 0; |
| 2993 | |
| 2994 | /* Don't autoprobe ISA bus */ |
| 2995 | if (hp100_port[0] == 0) |
| 2996 | return -ENODEV; |
| 2997 | |
| 2998 | /* Loop on all possible base addresses */ |
| 2999 | for (i = 0; i < HP100_DEVICES && hp100_port[i] != -1; ++i) { |
| 3000 | dev = alloc_etherdev(sizeof(struct hp100_private)); |
| 3001 | if (!dev) { |
| 3002 | printk(KERN_WARNING "hp100: no memory for network device\n"); |
| 3003 | while (cards > 0) |
| 3004 | cleanup_dev(hp100_devlist[--cards]); |
| 3005 | |
| 3006 | return -ENOMEM; |
| 3007 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3008 | |
| 3009 | err = hp100_isa_probe(dev, hp100_port[i]); |
| b1fc550 | 2005-05-12 20:11:55 -0400 | [diff] [blame] | 3010 | if (!err) |
| 3011 | hp100_devlist[cards++] = dev; |
| 3012 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3013 | free_netdev(dev); |
| 3014 | } |
| 3015 | |
| 3016 | return cards > 0 ? 0 : -ENODEV; |
| 3017 | } |
| 3018 | |
Sam Ravnborg | c79d9c9 | 2007-06-01 00:47:14 -0700 | [diff] [blame] | 3019 | static void hp100_isa_cleanup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3020 | { |
| 3021 | int i; |
| 3022 | |
| 3023 | for (i = 0; i < HP100_DEVICES; i++) { |
| 3024 | struct net_device *dev = hp100_devlist[i]; |
| 3025 | if (dev) |
| 3026 | cleanup_dev(dev); |
| 3027 | } |
| 3028 | } |
| 3029 | #else |
| 3030 | #define hp100_isa_init() (0) |
| 3031 | #define hp100_isa_cleanup() do { } while(0) |
| 3032 | #endif |
| 3033 | |
| 3034 | static int __init hp100_module_init(void) |
| 3035 | { |
| 3036 | int err; |
| 3037 | |
| 3038 | err = hp100_isa_init(); |
| 3039 | if (err && err != -ENODEV) |
| 3040 | goto out; |
| 3041 | #ifdef CONFIG_EISA |
| 3042 | err = eisa_driver_register(&hp100_eisa_driver); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3043 | if (err && err != -ENODEV) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3044 | goto out2; |
| 3045 | #endif |
| 3046 | #ifdef CONFIG_PCI |
Richard Knutsson | 7e3e8b0 | 2007-02-05 16:29:48 -0800 | [diff] [blame] | 3047 | err = pci_register_driver(&hp100_pci_driver); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3048 | if (err && err != -ENODEV) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3049 | goto out3; |
| 3050 | #endif |
| 3051 | out: |
| 3052 | return err; |
| 3053 | out3: |
| 3054 | #ifdef CONFIG_EISA |
| 3055 | eisa_driver_unregister (&hp100_eisa_driver); |
| 3056 | out2: |
| 3057 | #endif |
| 3058 | hp100_isa_cleanup(); |
| 3059 | goto out; |
| 3060 | } |
| 3061 | |
| 3062 | |
| 3063 | static void __exit hp100_module_exit(void) |
| 3064 | { |
| 3065 | hp100_isa_cleanup(); |
| 3066 | #ifdef CONFIG_EISA |
| 3067 | eisa_driver_unregister (&hp100_eisa_driver); |
| 3068 | #endif |
| 3069 | #ifdef CONFIG_PCI |
| 3070 | pci_unregister_driver (&hp100_pci_driver); |
| 3071 | #endif |
| 3072 | } |
| 3073 | |
| 3074 | module_init(hp100_module_init) |
| 3075 | module_exit(hp100_module_exit) |