Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* D-Link DL2000-based Gigabit Ethernet Adapter Linux driver */ |
| 2 | /* |
| 3 | Copyright (c) 2001, 2002 by D-Link Corporation |
| 4 | Written by Edward Peng.<edward_peng@dlink.com.tw> |
| 5 | Created 03-May-2001, base on Linux' sundance.c. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #define DRV_NAME "D-Link DL2000-based linux driver" |
Jeff Garzik | 03a8c66 | 2006-06-27 07:57:22 -0400 | [diff] [blame] | 14 | #define DRV_VERSION "v1.18" |
| 15 | #define DRV_RELDATE "2006/06/27" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include "dl2k.h" |
Andrew Morton | c4694c7 | 2006-05-15 09:44:43 -0700 | [diff] [blame] | 17 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | |
| 19 | static char version[] __devinitdata = |
| 20 | KERN_INFO DRV_NAME " " DRV_VERSION " " DRV_RELDATE "\n"; |
| 21 | #define MAX_UNITS 8 |
| 22 | static int mtu[MAX_UNITS]; |
| 23 | static int vlan[MAX_UNITS]; |
| 24 | static int jumbo[MAX_UNITS]; |
| 25 | static char *media[MAX_UNITS]; |
| 26 | static int tx_flow=-1; |
| 27 | static int rx_flow=-1; |
| 28 | static int copy_thresh; |
| 29 | static int rx_coalesce=10; /* Rx frame count each interrupt */ |
| 30 | static int rx_timeout=200; /* Rx DMA wait time in 640ns increments */ |
| 31 | static int tx_coalesce=16; /* HW xmit count each TxDMAComplete */ |
| 32 | |
| 33 | |
| 34 | MODULE_AUTHOR ("Edward Peng"); |
| 35 | MODULE_DESCRIPTION ("D-Link DL2000-based Gigabit Ethernet Adapter"); |
| 36 | MODULE_LICENSE("GPL"); |
| 37 | module_param_array(mtu, int, NULL, 0); |
| 38 | module_param_array(media, charp, NULL, 0); |
| 39 | module_param_array(vlan, int, NULL, 0); |
| 40 | module_param_array(jumbo, int, NULL, 0); |
| 41 | module_param(tx_flow, int, 0); |
| 42 | module_param(rx_flow, int, 0); |
| 43 | module_param(copy_thresh, int, 0); |
| 44 | module_param(rx_coalesce, int, 0); /* Rx frame count each interrupt */ |
| 45 | module_param(rx_timeout, int, 0); /* Rx DMA wait time in 64ns increments */ |
| 46 | module_param(tx_coalesce, int, 0); /* HW xmit count each TxDMAComplete */ |
| 47 | |
| 48 | |
| 49 | /* Enable the default interrupts */ |
| 50 | #define DEFAULT_INTR (RxDMAComplete | HostError | IntRequested | TxDMAComplete| \ |
| 51 | UpdateStats | LinkEvent) |
| 52 | #define EnableInt() \ |
| 53 | writew(DEFAULT_INTR, ioaddr + IntEnable) |
| 54 | |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 55 | static const int max_intrloop = 50; |
| 56 | static const int multicast_filter_limit = 0x40; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | static int rio_open (struct net_device *dev); |
| 59 | static void rio_timer (unsigned long data); |
| 60 | static void rio_tx_timeout (struct net_device *dev); |
| 61 | static void alloc_list (struct net_device *dev); |
| 62 | static int start_xmit (struct sk_buff *skb, struct net_device *dev); |
| 63 | static irqreturn_t rio_interrupt (int irq, void *dev_instance, struct pt_regs *regs); |
| 64 | static void rio_free_tx (struct net_device *dev, int irq); |
| 65 | static void tx_error (struct net_device *dev, int tx_status); |
| 66 | static int receive_packet (struct net_device *dev); |
| 67 | static void rio_error (struct net_device *dev, int int_status); |
| 68 | static int change_mtu (struct net_device *dev, int new_mtu); |
| 69 | static void set_multicast (struct net_device *dev); |
| 70 | static struct net_device_stats *get_stats (struct net_device *dev); |
| 71 | static int clear_stats (struct net_device *dev); |
| 72 | static int rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
| 73 | static int rio_close (struct net_device *dev); |
| 74 | static int find_miiphy (struct net_device *dev); |
| 75 | static int parse_eeprom (struct net_device *dev); |
| 76 | static int read_eeprom (long ioaddr, int eep_addr); |
| 77 | static int mii_wait_link (struct net_device *dev, int wait); |
| 78 | static int mii_set_media (struct net_device *dev); |
| 79 | static int mii_get_media (struct net_device *dev); |
| 80 | static int mii_set_media_pcs (struct net_device *dev); |
| 81 | static int mii_get_media_pcs (struct net_device *dev); |
| 82 | static int mii_read (struct net_device *dev, int phy_addr, int reg_num); |
| 83 | static int mii_write (struct net_device *dev, int phy_addr, int reg_num, |
| 84 | u16 data); |
| 85 | |
| 86 | static struct ethtool_ops ethtool_ops; |
| 87 | |
| 88 | static int __devinit |
| 89 | rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 90 | { |
| 91 | struct net_device *dev; |
| 92 | struct netdev_private *np; |
| 93 | static int card_idx; |
| 94 | int chip_idx = ent->driver_data; |
| 95 | int err, irq; |
| 96 | long ioaddr; |
| 97 | static int version_printed; |
| 98 | void *ring_space; |
| 99 | dma_addr_t ring_dma; |
| 100 | |
| 101 | if (!version_printed++) |
| 102 | printk ("%s", version); |
| 103 | |
| 104 | err = pci_enable_device (pdev); |
| 105 | if (err) |
| 106 | return err; |
| 107 | |
| 108 | irq = pdev->irq; |
| 109 | err = pci_request_regions (pdev, "dl2k"); |
| 110 | if (err) |
| 111 | goto err_out_disable; |
| 112 | |
| 113 | pci_set_master (pdev); |
| 114 | dev = alloc_etherdev (sizeof (*np)); |
| 115 | if (!dev) { |
| 116 | err = -ENOMEM; |
| 117 | goto err_out_res; |
| 118 | } |
| 119 | SET_MODULE_OWNER (dev); |
| 120 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 121 | |
| 122 | #ifdef MEM_MAPPING |
| 123 | ioaddr = pci_resource_start (pdev, 1); |
| 124 | ioaddr = (long) ioremap (ioaddr, RIO_IO_SIZE); |
| 125 | if (!ioaddr) { |
| 126 | err = -ENOMEM; |
| 127 | goto err_out_dev; |
| 128 | } |
| 129 | #else |
| 130 | ioaddr = pci_resource_start (pdev, 0); |
| 131 | #endif |
| 132 | dev->base_addr = ioaddr; |
| 133 | dev->irq = irq; |
| 134 | np = netdev_priv(dev); |
| 135 | np->chip_id = chip_idx; |
| 136 | np->pdev = pdev; |
| 137 | spin_lock_init (&np->tx_lock); |
| 138 | spin_lock_init (&np->rx_lock); |
| 139 | |
| 140 | /* Parse manual configuration */ |
| 141 | np->an_enable = 1; |
| 142 | np->tx_coalesce = 1; |
| 143 | if (card_idx < MAX_UNITS) { |
| 144 | if (media[card_idx] != NULL) { |
| 145 | np->an_enable = 0; |
| 146 | if (strcmp (media[card_idx], "auto") == 0 || |
| 147 | strcmp (media[card_idx], "autosense") == 0 || |
| 148 | strcmp (media[card_idx], "0") == 0 ) { |
| 149 | np->an_enable = 2; |
| 150 | } else if (strcmp (media[card_idx], "100mbps_fd") == 0 || |
| 151 | strcmp (media[card_idx], "4") == 0) { |
| 152 | np->speed = 100; |
| 153 | np->full_duplex = 1; |
| 154 | } else if (strcmp (media[card_idx], "100mbps_hd") == 0 |
| 155 | || strcmp (media[card_idx], "3") == 0) { |
| 156 | np->speed = 100; |
| 157 | np->full_duplex = 0; |
| 158 | } else if (strcmp (media[card_idx], "10mbps_fd") == 0 || |
| 159 | strcmp (media[card_idx], "2") == 0) { |
| 160 | np->speed = 10; |
| 161 | np->full_duplex = 1; |
| 162 | } else if (strcmp (media[card_idx], "10mbps_hd") == 0 || |
| 163 | strcmp (media[card_idx], "1") == 0) { |
| 164 | np->speed = 10; |
| 165 | np->full_duplex = 0; |
| 166 | } else if (strcmp (media[card_idx], "1000mbps_fd") == 0 || |
| 167 | strcmp (media[card_idx], "6") == 0) { |
| 168 | np->speed=1000; |
| 169 | np->full_duplex=1; |
| 170 | } else if (strcmp (media[card_idx], "1000mbps_hd") == 0 || |
| 171 | strcmp (media[card_idx], "5") == 0) { |
| 172 | np->speed = 1000; |
| 173 | np->full_duplex = 0; |
| 174 | } else { |
| 175 | np->an_enable = 1; |
| 176 | } |
| 177 | } |
| 178 | if (jumbo[card_idx] != 0) { |
| 179 | np->jumbo = 1; |
| 180 | dev->mtu = MAX_JUMBO; |
| 181 | } else { |
| 182 | np->jumbo = 0; |
| 183 | if (mtu[card_idx] > 0 && mtu[card_idx] < PACKET_SIZE) |
| 184 | dev->mtu = mtu[card_idx]; |
| 185 | } |
| 186 | np->vlan = (vlan[card_idx] > 0 && vlan[card_idx] < 4096) ? |
| 187 | vlan[card_idx] : 0; |
| 188 | if (rx_coalesce > 0 && rx_timeout > 0) { |
| 189 | np->rx_coalesce = rx_coalesce; |
| 190 | np->rx_timeout = rx_timeout; |
| 191 | np->coalesce = 1; |
| 192 | } |
| 193 | np->tx_flow = (tx_flow == 0) ? 0 : 1; |
| 194 | np->rx_flow = (rx_flow == 0) ? 0 : 1; |
| 195 | |
| 196 | if (tx_coalesce < 1) |
| 197 | tx_coalesce = 1; |
| 198 | else if (tx_coalesce > TX_RING_SIZE-1) |
| 199 | tx_coalesce = TX_RING_SIZE - 1; |
| 200 | } |
| 201 | dev->open = &rio_open; |
| 202 | dev->hard_start_xmit = &start_xmit; |
| 203 | dev->stop = &rio_close; |
| 204 | dev->get_stats = &get_stats; |
| 205 | dev->set_multicast_list = &set_multicast; |
| 206 | dev->do_ioctl = &rio_ioctl; |
| 207 | dev->tx_timeout = &rio_tx_timeout; |
| 208 | dev->watchdog_timeo = TX_TIMEOUT; |
| 209 | dev->change_mtu = &change_mtu; |
| 210 | SET_ETHTOOL_OPS(dev, ðtool_ops); |
| 211 | #if 0 |
| 212 | dev->features = NETIF_F_IP_CSUM; |
| 213 | #endif |
| 214 | pci_set_drvdata (pdev, dev); |
| 215 | |
| 216 | ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma); |
| 217 | if (!ring_space) |
| 218 | goto err_out_iounmap; |
| 219 | np->tx_ring = (struct netdev_desc *) ring_space; |
| 220 | np->tx_ring_dma = ring_dma; |
| 221 | |
| 222 | ring_space = pci_alloc_consistent (pdev, RX_TOTAL_SIZE, &ring_dma); |
| 223 | if (!ring_space) |
| 224 | goto err_out_unmap_tx; |
| 225 | np->rx_ring = (struct netdev_desc *) ring_space; |
| 226 | np->rx_ring_dma = ring_dma; |
| 227 | |
| 228 | /* Parse eeprom data */ |
| 229 | parse_eeprom (dev); |
| 230 | |
| 231 | /* Find PHY address */ |
| 232 | err = find_miiphy (dev); |
| 233 | if (err) |
| 234 | goto err_out_unmap_rx; |
| 235 | |
| 236 | /* Fiber device? */ |
| 237 | np->phy_media = (readw(ioaddr + ASICCtrl) & PhyMedia) ? 1 : 0; |
| 238 | np->link_status = 0; |
| 239 | /* Set media and reset PHY */ |
| 240 | if (np->phy_media) { |
| 241 | /* default Auto-Negotiation for fiber deivices */ |
| 242 | if (np->an_enable == 2) { |
| 243 | np->an_enable = 1; |
| 244 | } |
| 245 | mii_set_media_pcs (dev); |
| 246 | } else { |
| 247 | /* Auto-Negotiation is mandatory for 1000BASE-T, |
| 248 | IEEE 802.3ab Annex 28D page 14 */ |
| 249 | if (np->speed == 1000) |
| 250 | np->an_enable = 1; |
| 251 | mii_set_media (dev); |
| 252 | } |
| 253 | pci_read_config_byte(pdev, PCI_REVISION_ID, &np->pci_rev_id); |
| 254 | |
| 255 | err = register_netdev (dev); |
| 256 | if (err) |
| 257 | goto err_out_unmap_rx; |
| 258 | |
| 259 | card_idx++; |
| 260 | |
| 261 | printk (KERN_INFO "%s: %s, %02x:%02x:%02x:%02x:%02x:%02x, IRQ %d\n", |
| 262 | dev->name, np->name, |
| 263 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], |
| 264 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5], irq); |
| 265 | if (tx_coalesce > 1) |
| 266 | printk(KERN_INFO "tx_coalesce:\t%d packets\n", |
| 267 | tx_coalesce); |
| 268 | if (np->coalesce) |
| 269 | printk(KERN_INFO "rx_coalesce:\t%d packets\n" |
| 270 | KERN_INFO "rx_timeout: \t%d ns\n", |
| 271 | np->rx_coalesce, np->rx_timeout*640); |
| 272 | if (np->vlan) |
| 273 | printk(KERN_INFO "vlan(id):\t%d\n", np->vlan); |
| 274 | return 0; |
| 275 | |
| 276 | err_out_unmap_rx: |
| 277 | pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma); |
| 278 | err_out_unmap_tx: |
| 279 | pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma); |
| 280 | err_out_iounmap: |
| 281 | #ifdef MEM_MAPPING |
| 282 | iounmap ((void *) ioaddr); |
| 283 | |
| 284 | err_out_dev: |
| 285 | #endif |
| 286 | free_netdev (dev); |
| 287 | |
| 288 | err_out_res: |
| 289 | pci_release_regions (pdev); |
| 290 | |
| 291 | err_out_disable: |
| 292 | pci_disable_device (pdev); |
| 293 | return err; |
| 294 | } |
| 295 | |
| 296 | int |
| 297 | find_miiphy (struct net_device *dev) |
| 298 | { |
| 299 | int i, phy_found = 0; |
| 300 | struct netdev_private *np; |
| 301 | long ioaddr; |
| 302 | np = netdev_priv(dev); |
| 303 | ioaddr = dev->base_addr; |
| 304 | np->phy_addr = 1; |
| 305 | |
| 306 | for (i = 31; i >= 0; i--) { |
| 307 | int mii_status = mii_read (dev, i, 1); |
| 308 | if (mii_status != 0xffff && mii_status != 0x0000) { |
| 309 | np->phy_addr = i; |
| 310 | phy_found++; |
| 311 | } |
| 312 | } |
| 313 | if (!phy_found) { |
| 314 | printk (KERN_ERR "%s: No MII PHY found!\n", dev->name); |
| 315 | return -ENODEV; |
| 316 | } |
| 317 | return 0; |
| 318 | } |
| 319 | |
| 320 | int |
| 321 | parse_eeprom (struct net_device *dev) |
| 322 | { |
| 323 | int i, j; |
| 324 | long ioaddr = dev->base_addr; |
| 325 | u8 sromdata[256]; |
| 326 | u8 *psib; |
| 327 | u32 crc; |
| 328 | PSROM_t psrom = (PSROM_t) sromdata; |
| 329 | struct netdev_private *np = netdev_priv(dev); |
| 330 | |
| 331 | int cid, next; |
| 332 | |
| 333 | #ifdef MEM_MAPPING |
| 334 | ioaddr = pci_resource_start (np->pdev, 0); |
| 335 | #endif |
| 336 | /* Read eeprom */ |
| 337 | for (i = 0; i < 128; i++) { |
| 338 | ((u16 *) sromdata)[i] = le16_to_cpu (read_eeprom (ioaddr, i)); |
| 339 | } |
| 340 | #ifdef MEM_MAPPING |
| 341 | ioaddr = dev->base_addr; |
| 342 | #endif |
| 343 | /* Check CRC */ |
| 344 | crc = ~ether_crc_le (256 - 4, sromdata); |
| 345 | if (psrom->crc != crc) { |
| 346 | printk (KERN_ERR "%s: EEPROM data CRC error.\n", dev->name); |
| 347 | return -1; |
| 348 | } |
| 349 | |
| 350 | /* Set MAC address */ |
| 351 | for (i = 0; i < 6; i++) |
| 352 | dev->dev_addr[i] = psrom->mac_addr[i]; |
| 353 | |
Adrian Bunk | 47bdd71 | 2006-06-30 18:25:18 +0200 | [diff] [blame] | 354 | /* Parse Software Information Block */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | i = 0x30; |
| 356 | psib = (u8 *) sromdata; |
| 357 | do { |
| 358 | cid = psib[i++]; |
| 359 | next = psib[i++]; |
| 360 | if ((cid == 0 && next == 0) || (cid == 0xff && next == 0xff)) { |
| 361 | printk (KERN_ERR "Cell data error\n"); |
| 362 | return -1; |
| 363 | } |
| 364 | switch (cid) { |
| 365 | case 0: /* Format version */ |
| 366 | break; |
| 367 | case 1: /* End of cell */ |
| 368 | return 0; |
| 369 | case 2: /* Duplex Polarity */ |
| 370 | np->duplex_polarity = psib[i]; |
| 371 | writeb (readb (ioaddr + PhyCtrl) | psib[i], |
| 372 | ioaddr + PhyCtrl); |
| 373 | break; |
| 374 | case 3: /* Wake Polarity */ |
| 375 | np->wake_polarity = psib[i]; |
| 376 | break; |
| 377 | case 9: /* Adapter description */ |
| 378 | j = (next - i > 255) ? 255 : next - i; |
| 379 | memcpy (np->name, &(psib[i]), j); |
| 380 | break; |
| 381 | case 4: |
| 382 | case 5: |
| 383 | case 6: |
| 384 | case 7: |
| 385 | case 8: /* Reversed */ |
| 386 | break; |
| 387 | default: /* Unknown cell */ |
| 388 | return -1; |
| 389 | } |
| 390 | i = next; |
| 391 | } while (1); |
| 392 | |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | static int |
| 397 | rio_open (struct net_device *dev) |
| 398 | { |
| 399 | struct netdev_private *np = netdev_priv(dev); |
| 400 | long ioaddr = dev->base_addr; |
| 401 | int i; |
| 402 | u16 macctrl; |
| 403 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 404 | i = request_irq (dev->irq, &rio_interrupt, IRQF_SHARED, dev->name, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | if (i) |
| 406 | return i; |
| 407 | |
| 408 | /* Reset all logic functions */ |
| 409 | writew (GlobalReset | DMAReset | FIFOReset | NetworkReset | HostReset, |
| 410 | ioaddr + ASICCtrl + 2); |
| 411 | mdelay(10); |
| 412 | |
| 413 | /* DebugCtrl bit 4, 5, 9 must set */ |
| 414 | writel (readl (ioaddr + DebugCtrl) | 0x0230, ioaddr + DebugCtrl); |
| 415 | |
| 416 | /* Jumbo frame */ |
| 417 | if (np->jumbo != 0) |
| 418 | writew (MAX_JUMBO+14, ioaddr + MaxFrameSize); |
| 419 | |
| 420 | alloc_list (dev); |
| 421 | |
| 422 | /* Get station address */ |
| 423 | for (i = 0; i < 6; i++) |
| 424 | writeb (dev->dev_addr[i], ioaddr + StationAddr0 + i); |
| 425 | |
| 426 | set_multicast (dev); |
| 427 | if (np->coalesce) { |
| 428 | writel (np->rx_coalesce | np->rx_timeout << 16, |
| 429 | ioaddr + RxDMAIntCtrl); |
| 430 | } |
| 431 | /* Set RIO to poll every N*320nsec. */ |
| 432 | writeb (0x20, ioaddr + RxDMAPollPeriod); |
| 433 | writeb (0xff, ioaddr + TxDMAPollPeriod); |
| 434 | writeb (0x30, ioaddr + RxDMABurstThresh); |
| 435 | writeb (0x30, ioaddr + RxDMAUrgentThresh); |
| 436 | writel (0x0007ffff, ioaddr + RmonStatMask); |
| 437 | /* clear statistics */ |
| 438 | clear_stats (dev); |
| 439 | |
| 440 | /* VLAN supported */ |
| 441 | if (np->vlan) { |
| 442 | /* priority field in RxDMAIntCtrl */ |
| 443 | writel (readl(ioaddr + RxDMAIntCtrl) | 0x7 << 10, |
| 444 | ioaddr + RxDMAIntCtrl); |
| 445 | /* VLANId */ |
| 446 | writew (np->vlan, ioaddr + VLANId); |
| 447 | /* Length/Type should be 0x8100 */ |
| 448 | writel (0x8100 << 16 | np->vlan, ioaddr + VLANTag); |
| 449 | /* Enable AutoVLANuntagging, but disable AutoVLANtagging. |
| 450 | VLAN information tagged by TFC' VID, CFI fields. */ |
| 451 | writel (readl (ioaddr + MACCtrl) | AutoVLANuntagging, |
| 452 | ioaddr + MACCtrl); |
| 453 | } |
| 454 | |
| 455 | init_timer (&np->timer); |
| 456 | np->timer.expires = jiffies + 1*HZ; |
| 457 | np->timer.data = (unsigned long) dev; |
| 458 | np->timer.function = &rio_timer; |
| 459 | add_timer (&np->timer); |
| 460 | |
| 461 | /* Start Tx/Rx */ |
| 462 | writel (readl (ioaddr + MACCtrl) | StatsEnable | RxEnable | TxEnable, |
| 463 | ioaddr + MACCtrl); |
| 464 | |
| 465 | macctrl = 0; |
| 466 | macctrl |= (np->vlan) ? AutoVLANuntagging : 0; |
| 467 | macctrl |= (np->full_duplex) ? DuplexSelect : 0; |
| 468 | macctrl |= (np->tx_flow) ? TxFlowControlEnable : 0; |
| 469 | macctrl |= (np->rx_flow) ? RxFlowControlEnable : 0; |
| 470 | writew(macctrl, ioaddr + MACCtrl); |
| 471 | |
| 472 | netif_start_queue (dev); |
| 473 | |
| 474 | /* Enable default interrupts */ |
| 475 | EnableInt (); |
| 476 | return 0; |
| 477 | } |
| 478 | |
| 479 | static void |
| 480 | rio_timer (unsigned long data) |
| 481 | { |
| 482 | struct net_device *dev = (struct net_device *)data; |
| 483 | struct netdev_private *np = netdev_priv(dev); |
| 484 | unsigned int entry; |
| 485 | int next_tick = 1*HZ; |
| 486 | unsigned long flags; |
| 487 | |
| 488 | spin_lock_irqsave(&np->rx_lock, flags); |
| 489 | /* Recover rx ring exhausted error */ |
| 490 | if (np->cur_rx - np->old_rx >= RX_RING_SIZE) { |
| 491 | printk(KERN_INFO "Try to recover rx ring exhausted...\n"); |
| 492 | /* Re-allocate skbuffs to fill the descriptor ring */ |
| 493 | for (; np->cur_rx - np->old_rx > 0; np->old_rx++) { |
| 494 | struct sk_buff *skb; |
| 495 | entry = np->old_rx % RX_RING_SIZE; |
| 496 | /* Dropped packets don't need to re-allocate */ |
| 497 | if (np->rx_skbuff[entry] == NULL) { |
| 498 | skb = dev_alloc_skb (np->rx_buf_sz); |
| 499 | if (skb == NULL) { |
| 500 | np->rx_ring[entry].fraginfo = 0; |
| 501 | printk (KERN_INFO |
| 502 | "%s: Still unable to re-allocate Rx skbuff.#%d\n", |
| 503 | dev->name, entry); |
| 504 | break; |
| 505 | } |
| 506 | np->rx_skbuff[entry] = skb; |
| 507 | skb->dev = dev; |
| 508 | /* 16 byte align the IP header */ |
| 509 | skb_reserve (skb, 2); |
| 510 | np->rx_ring[entry].fraginfo = |
| 511 | cpu_to_le64 (pci_map_single |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 512 | (np->pdev, skb->data, np->rx_buf_sz, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | PCI_DMA_FROMDEVICE)); |
| 514 | } |
| 515 | np->rx_ring[entry].fraginfo |= |
| 516 | cpu_to_le64 (np->rx_buf_sz) << 48; |
| 517 | np->rx_ring[entry].status = 0; |
| 518 | } /* end for */ |
| 519 | } /* end if */ |
| 520 | spin_unlock_irqrestore (&np->rx_lock, flags); |
| 521 | np->timer.expires = jiffies + next_tick; |
| 522 | add_timer(&np->timer); |
| 523 | } |
| 524 | |
| 525 | static void |
| 526 | rio_tx_timeout (struct net_device *dev) |
| 527 | { |
| 528 | long ioaddr = dev->base_addr; |
| 529 | |
| 530 | printk (KERN_INFO "%s: Tx timed out (%4.4x), is buffer full?\n", |
| 531 | dev->name, readl (ioaddr + TxStatus)); |
| 532 | rio_free_tx(dev, 0); |
| 533 | dev->if_port = 0; |
| 534 | dev->trans_start = jiffies; |
| 535 | } |
| 536 | |
| 537 | /* allocate and initialize Tx and Rx descriptors */ |
| 538 | static void |
| 539 | alloc_list (struct net_device *dev) |
| 540 | { |
| 541 | struct netdev_private *np = netdev_priv(dev); |
| 542 | int i; |
| 543 | |
| 544 | np->cur_rx = np->cur_tx = 0; |
| 545 | np->old_rx = np->old_tx = 0; |
| 546 | np->rx_buf_sz = (dev->mtu <= 1500 ? PACKET_SIZE : dev->mtu + 32); |
| 547 | |
| 548 | /* Initialize Tx descriptors, TFDListPtr leaves in start_xmit(). */ |
| 549 | for (i = 0; i < TX_RING_SIZE; i++) { |
| 550 | np->tx_skbuff[i] = NULL; |
| 551 | np->tx_ring[i].status = cpu_to_le64 (TFDDone); |
| 552 | np->tx_ring[i].next_desc = cpu_to_le64 (np->tx_ring_dma + |
| 553 | ((i+1)%TX_RING_SIZE) * |
| 554 | sizeof (struct netdev_desc)); |
| 555 | } |
| 556 | |
| 557 | /* Initialize Rx descriptors */ |
| 558 | for (i = 0; i < RX_RING_SIZE; i++) { |
| 559 | np->rx_ring[i].next_desc = cpu_to_le64 (np->rx_ring_dma + |
| 560 | ((i + 1) % RX_RING_SIZE) * |
| 561 | sizeof (struct netdev_desc)); |
| 562 | np->rx_ring[i].status = 0; |
| 563 | np->rx_ring[i].fraginfo = 0; |
| 564 | np->rx_skbuff[i] = NULL; |
| 565 | } |
| 566 | |
| 567 | /* Allocate the rx buffers */ |
| 568 | for (i = 0; i < RX_RING_SIZE; i++) { |
| 569 | /* Allocated fixed size of skbuff */ |
| 570 | struct sk_buff *skb = dev_alloc_skb (np->rx_buf_sz); |
| 571 | np->rx_skbuff[i] = skb; |
| 572 | if (skb == NULL) { |
| 573 | printk (KERN_ERR |
| 574 | "%s: alloc_list: allocate Rx buffer error! ", |
| 575 | dev->name); |
| 576 | break; |
| 577 | } |
| 578 | skb->dev = dev; /* Mark as being used by this device. */ |
| 579 | skb_reserve (skb, 2); /* 16 byte align the IP header. */ |
| 580 | /* Rubicon now supports 40 bits of addressing space. */ |
| 581 | np->rx_ring[i].fraginfo = |
| 582 | cpu_to_le64 ( pci_map_single ( |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 583 | np->pdev, skb->data, np->rx_buf_sz, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | PCI_DMA_FROMDEVICE)); |
| 585 | np->rx_ring[i].fraginfo |= cpu_to_le64 (np->rx_buf_sz) << 48; |
| 586 | } |
| 587 | |
| 588 | /* Set RFDListPtr */ |
| 589 | writel (cpu_to_le32 (np->rx_ring_dma), dev->base_addr + RFDListPtr0); |
| 590 | writel (0, dev->base_addr + RFDListPtr1); |
| 591 | |
| 592 | return; |
| 593 | } |
| 594 | |
| 595 | static int |
| 596 | start_xmit (struct sk_buff *skb, struct net_device *dev) |
| 597 | { |
| 598 | struct netdev_private *np = netdev_priv(dev); |
| 599 | struct netdev_desc *txdesc; |
| 600 | unsigned entry; |
| 601 | u32 ioaddr; |
| 602 | u64 tfc_vlan_tag = 0; |
| 603 | |
| 604 | if (np->link_status == 0) { /* Link Down */ |
| 605 | dev_kfree_skb(skb); |
| 606 | return 0; |
| 607 | } |
| 608 | ioaddr = dev->base_addr; |
| 609 | entry = np->cur_tx % TX_RING_SIZE; |
| 610 | np->tx_skbuff[entry] = skb; |
| 611 | txdesc = &np->tx_ring[entry]; |
| 612 | |
| 613 | #if 0 |
| 614 | if (skb->ip_summed == CHECKSUM_HW) { |
| 615 | txdesc->status |= |
| 616 | cpu_to_le64 (TCPChecksumEnable | UDPChecksumEnable | |
| 617 | IPChecksumEnable); |
| 618 | } |
| 619 | #endif |
| 620 | if (np->vlan) { |
| 621 | tfc_vlan_tag = |
| 622 | cpu_to_le64 (VLANTagInsert) | |
| 623 | (cpu_to_le64 (np->vlan) << 32) | |
| 624 | (cpu_to_le64 (skb->priority) << 45); |
| 625 | } |
| 626 | txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data, |
| 627 | skb->len, |
| 628 | PCI_DMA_TODEVICE)); |
| 629 | txdesc->fraginfo |= cpu_to_le64 (skb->len) << 48; |
| 630 | |
| 631 | /* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode |
| 632 | * Work around: Always use 1 descriptor in 10Mbps mode */ |
| 633 | if (entry % np->tx_coalesce == 0 || np->speed == 10) |
| 634 | txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag | |
| 635 | WordAlignDisable | |
| 636 | TxDMAIndicate | |
| 637 | (1 << FragCountShift)); |
| 638 | else |
| 639 | txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag | |
| 640 | WordAlignDisable | |
| 641 | (1 << FragCountShift)); |
| 642 | |
| 643 | /* TxDMAPollNow */ |
| 644 | writel (readl (ioaddr + DMACtrl) | 0x00001000, ioaddr + DMACtrl); |
| 645 | /* Schedule ISR */ |
| 646 | writel(10000, ioaddr + CountDown); |
| 647 | np->cur_tx = (np->cur_tx + 1) % TX_RING_SIZE; |
| 648 | if ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE |
| 649 | < TX_QUEUE_LEN - 1 && np->speed != 10) { |
| 650 | /* do nothing */ |
| 651 | } else if (!netif_queue_stopped(dev)) { |
| 652 | netif_stop_queue (dev); |
| 653 | } |
| 654 | |
| 655 | /* The first TFDListPtr */ |
| 656 | if (readl (dev->base_addr + TFDListPtr0) == 0) { |
| 657 | writel (np->tx_ring_dma + entry * sizeof (struct netdev_desc), |
| 658 | dev->base_addr + TFDListPtr0); |
| 659 | writel (0, dev->base_addr + TFDListPtr1); |
| 660 | } |
| 661 | |
| 662 | /* NETDEV WATCHDOG timer */ |
| 663 | dev->trans_start = jiffies; |
| 664 | return 0; |
| 665 | } |
| 666 | |
| 667 | static irqreturn_t |
| 668 | rio_interrupt (int irq, void *dev_instance, struct pt_regs *rgs) |
| 669 | { |
| 670 | struct net_device *dev = dev_instance; |
| 671 | struct netdev_private *np; |
| 672 | unsigned int_status; |
| 673 | long ioaddr; |
| 674 | int cnt = max_intrloop; |
| 675 | int handled = 0; |
| 676 | |
| 677 | ioaddr = dev->base_addr; |
| 678 | np = netdev_priv(dev); |
| 679 | while (1) { |
| 680 | int_status = readw (ioaddr + IntStatus); |
| 681 | writew (int_status, ioaddr + IntStatus); |
| 682 | int_status &= DEFAULT_INTR; |
| 683 | if (int_status == 0 || --cnt < 0) |
| 684 | break; |
| 685 | handled = 1; |
| 686 | /* Processing received packets */ |
| 687 | if (int_status & RxDMAComplete) |
| 688 | receive_packet (dev); |
| 689 | /* TxDMAComplete interrupt */ |
| 690 | if ((int_status & (TxDMAComplete|IntRequested))) { |
| 691 | int tx_status; |
| 692 | tx_status = readl (ioaddr + TxStatus); |
| 693 | if (tx_status & 0x01) |
| 694 | tx_error (dev, tx_status); |
| 695 | /* Free used tx skbuffs */ |
| 696 | rio_free_tx (dev, 1); |
| 697 | } |
| 698 | |
| 699 | /* Handle uncommon events */ |
| 700 | if (int_status & |
| 701 | (HostError | LinkEvent | UpdateStats)) |
| 702 | rio_error (dev, int_status); |
| 703 | } |
| 704 | if (np->cur_tx != np->old_tx) |
| 705 | writel (100, ioaddr + CountDown); |
| 706 | return IRQ_RETVAL(handled); |
| 707 | } |
| 708 | |
| 709 | static void |
| 710 | rio_free_tx (struct net_device *dev, int irq) |
| 711 | { |
| 712 | struct netdev_private *np = netdev_priv(dev); |
| 713 | int entry = np->old_tx % TX_RING_SIZE; |
| 714 | int tx_use = 0; |
| 715 | unsigned long flag = 0; |
| 716 | |
| 717 | if (irq) |
| 718 | spin_lock(&np->tx_lock); |
| 719 | else |
| 720 | spin_lock_irqsave(&np->tx_lock, flag); |
| 721 | |
| 722 | /* Free used tx skbuffs */ |
| 723 | while (entry != np->cur_tx) { |
| 724 | struct sk_buff *skb; |
| 725 | |
| 726 | if (!(np->tx_ring[entry].status & TFDDone)) |
| 727 | break; |
| 728 | skb = np->tx_skbuff[entry]; |
| 729 | pci_unmap_single (np->pdev, |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 730 | np->tx_ring[entry].fraginfo & DMA_48BIT_MASK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | skb->len, PCI_DMA_TODEVICE); |
| 732 | if (irq) |
| 733 | dev_kfree_skb_irq (skb); |
| 734 | else |
| 735 | dev_kfree_skb (skb); |
| 736 | |
| 737 | np->tx_skbuff[entry] = NULL; |
| 738 | entry = (entry + 1) % TX_RING_SIZE; |
| 739 | tx_use++; |
| 740 | } |
| 741 | if (irq) |
| 742 | spin_unlock(&np->tx_lock); |
| 743 | else |
| 744 | spin_unlock_irqrestore(&np->tx_lock, flag); |
| 745 | np->old_tx = entry; |
| 746 | |
| 747 | /* If the ring is no longer full, clear tx_full and |
| 748 | call netif_wake_queue() */ |
| 749 | |
| 750 | if (netif_queue_stopped(dev) && |
| 751 | ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE |
| 752 | < TX_QUEUE_LEN - 1 || np->speed == 10)) { |
| 753 | netif_wake_queue (dev); |
| 754 | } |
| 755 | } |
| 756 | |
| 757 | static void |
| 758 | tx_error (struct net_device *dev, int tx_status) |
| 759 | { |
| 760 | struct netdev_private *np; |
| 761 | long ioaddr = dev->base_addr; |
| 762 | int frame_id; |
| 763 | int i; |
| 764 | |
| 765 | np = netdev_priv(dev); |
| 766 | |
| 767 | frame_id = (tx_status & 0xffff0000); |
| 768 | printk (KERN_ERR "%s: Transmit error, TxStatus %4.4x, FrameId %d.\n", |
| 769 | dev->name, tx_status, frame_id); |
| 770 | np->stats.tx_errors++; |
| 771 | /* Ttransmit Underrun */ |
| 772 | if (tx_status & 0x10) { |
| 773 | np->stats.tx_fifo_errors++; |
| 774 | writew (readw (ioaddr + TxStartThresh) + 0x10, |
| 775 | ioaddr + TxStartThresh); |
| 776 | /* Transmit Underrun need to set TxReset, DMARest, FIFOReset */ |
| 777 | writew (TxReset | DMAReset | FIFOReset | NetworkReset, |
| 778 | ioaddr + ASICCtrl + 2); |
| 779 | /* Wait for ResetBusy bit clear */ |
| 780 | for (i = 50; i > 0; i--) { |
| 781 | if ((readw (ioaddr + ASICCtrl + 2) & ResetBusy) == 0) |
| 782 | break; |
| 783 | mdelay (1); |
| 784 | } |
| 785 | rio_free_tx (dev, 1); |
| 786 | /* Reset TFDListPtr */ |
| 787 | writel (np->tx_ring_dma + |
| 788 | np->old_tx * sizeof (struct netdev_desc), |
| 789 | dev->base_addr + TFDListPtr0); |
| 790 | writel (0, dev->base_addr + TFDListPtr1); |
| 791 | |
| 792 | /* Let TxStartThresh stay default value */ |
| 793 | } |
| 794 | /* Late Collision */ |
| 795 | if (tx_status & 0x04) { |
| 796 | np->stats.tx_fifo_errors++; |
| 797 | /* TxReset and clear FIFO */ |
| 798 | writew (TxReset | FIFOReset, ioaddr + ASICCtrl + 2); |
| 799 | /* Wait reset done */ |
| 800 | for (i = 50; i > 0; i--) { |
| 801 | if ((readw (ioaddr + ASICCtrl + 2) & ResetBusy) == 0) |
| 802 | break; |
| 803 | mdelay (1); |
| 804 | } |
| 805 | /* Let TxStartThresh stay default value */ |
| 806 | } |
| 807 | /* Maximum Collisions */ |
| 808 | #ifdef ETHER_STATS |
| 809 | if (tx_status & 0x08) |
| 810 | np->stats.collisions16++; |
| 811 | #else |
| 812 | if (tx_status & 0x08) |
| 813 | np->stats.collisions++; |
| 814 | #endif |
| 815 | /* Restart the Tx */ |
| 816 | writel (readw (dev->base_addr + MACCtrl) | TxEnable, ioaddr + MACCtrl); |
| 817 | } |
| 818 | |
| 819 | static int |
| 820 | receive_packet (struct net_device *dev) |
| 821 | { |
| 822 | struct netdev_private *np = netdev_priv(dev); |
| 823 | int entry = np->cur_rx % RX_RING_SIZE; |
| 824 | int cnt = 30; |
| 825 | |
| 826 | /* If RFDDone, FrameStart and FrameEnd set, there is a new packet in. */ |
| 827 | while (1) { |
| 828 | struct netdev_desc *desc = &np->rx_ring[entry]; |
| 829 | int pkt_len; |
| 830 | u64 frame_status; |
| 831 | |
| 832 | if (!(desc->status & RFDDone) || |
| 833 | !(desc->status & FrameStart) || !(desc->status & FrameEnd)) |
| 834 | break; |
| 835 | |
| 836 | /* Chip omits the CRC. */ |
| 837 | pkt_len = le64_to_cpu (desc->status & 0xffff); |
| 838 | frame_status = le64_to_cpu (desc->status); |
| 839 | if (--cnt < 0) |
| 840 | break; |
| 841 | /* Update rx error statistics, drop packet. */ |
| 842 | if (frame_status & RFS_Errors) { |
| 843 | np->stats.rx_errors++; |
| 844 | if (frame_status & (RxRuntFrame | RxLengthError)) |
| 845 | np->stats.rx_length_errors++; |
| 846 | if (frame_status & RxFCSError) |
| 847 | np->stats.rx_crc_errors++; |
| 848 | if (frame_status & RxAlignmentError && np->speed != 1000) |
| 849 | np->stats.rx_frame_errors++; |
| 850 | if (frame_status & RxFIFOOverrun) |
| 851 | np->stats.rx_fifo_errors++; |
| 852 | } else { |
| 853 | struct sk_buff *skb; |
| 854 | |
| 855 | /* Small skbuffs for short packets */ |
| 856 | if (pkt_len > copy_thresh) { |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 857 | pci_unmap_single (np->pdev, |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 858 | desc->fraginfo & DMA_48BIT_MASK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | np->rx_buf_sz, |
| 860 | PCI_DMA_FROMDEVICE); |
| 861 | skb_put (skb = np->rx_skbuff[entry], pkt_len); |
| 862 | np->rx_skbuff[entry] = NULL; |
| 863 | } else if ((skb = dev_alloc_skb (pkt_len + 2)) != NULL) { |
| 864 | pci_dma_sync_single_for_cpu(np->pdev, |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 865 | desc->fraginfo & |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 866 | DMA_48BIT_MASK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | np->rx_buf_sz, |
| 868 | PCI_DMA_FROMDEVICE); |
| 869 | skb->dev = dev; |
| 870 | /* 16 byte align the IP header */ |
| 871 | skb_reserve (skb, 2); |
| 872 | eth_copy_and_sum (skb, |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 873 | np->rx_skbuff[entry]->data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | pkt_len, 0); |
| 875 | skb_put (skb, pkt_len); |
| 876 | pci_dma_sync_single_for_device(np->pdev, |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 877 | desc->fraginfo & |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 878 | DMA_48BIT_MASK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | np->rx_buf_sz, |
| 880 | PCI_DMA_FROMDEVICE); |
| 881 | } |
| 882 | skb->protocol = eth_type_trans (skb, dev); |
| 883 | #if 0 |
| 884 | /* Checksum done by hw, but csum value unavailable. */ |
| 885 | if (np->pci_rev_id >= 0x0c && |
| 886 | !(frame_status & (TCPError | UDPError | IPError))) { |
| 887 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 888 | } |
| 889 | #endif |
| 890 | netif_rx (skb); |
| 891 | dev->last_rx = jiffies; |
| 892 | } |
| 893 | entry = (entry + 1) % RX_RING_SIZE; |
| 894 | } |
| 895 | spin_lock(&np->rx_lock); |
| 896 | np->cur_rx = entry; |
| 897 | /* Re-allocate skbuffs to fill the descriptor ring */ |
| 898 | entry = np->old_rx; |
| 899 | while (entry != np->cur_rx) { |
| 900 | struct sk_buff *skb; |
| 901 | /* Dropped packets don't need to re-allocate */ |
| 902 | if (np->rx_skbuff[entry] == NULL) { |
| 903 | skb = dev_alloc_skb (np->rx_buf_sz); |
| 904 | if (skb == NULL) { |
| 905 | np->rx_ring[entry].fraginfo = 0; |
| 906 | printk (KERN_INFO |
| 907 | "%s: receive_packet: " |
| 908 | "Unable to re-allocate Rx skbuff.#%d\n", |
| 909 | dev->name, entry); |
| 910 | break; |
| 911 | } |
| 912 | np->rx_skbuff[entry] = skb; |
| 913 | skb->dev = dev; |
| 914 | /* 16 byte align the IP header */ |
| 915 | skb_reserve (skb, 2); |
| 916 | np->rx_ring[entry].fraginfo = |
| 917 | cpu_to_le64 (pci_map_single |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 918 | (np->pdev, skb->data, np->rx_buf_sz, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | PCI_DMA_FROMDEVICE)); |
| 920 | } |
| 921 | np->rx_ring[entry].fraginfo |= |
| 922 | cpu_to_le64 (np->rx_buf_sz) << 48; |
| 923 | np->rx_ring[entry].status = 0; |
| 924 | entry = (entry + 1) % RX_RING_SIZE; |
| 925 | } |
| 926 | np->old_rx = entry; |
| 927 | spin_unlock(&np->rx_lock); |
| 928 | return 0; |
| 929 | } |
| 930 | |
| 931 | static void |
| 932 | rio_error (struct net_device *dev, int int_status) |
| 933 | { |
| 934 | long ioaddr = dev->base_addr; |
| 935 | struct netdev_private *np = netdev_priv(dev); |
| 936 | u16 macctrl; |
| 937 | |
| 938 | /* Link change event */ |
| 939 | if (int_status & LinkEvent) { |
| 940 | if (mii_wait_link (dev, 10) == 0) { |
| 941 | printk (KERN_INFO "%s: Link up\n", dev->name); |
| 942 | if (np->phy_media) |
| 943 | mii_get_media_pcs (dev); |
| 944 | else |
| 945 | mii_get_media (dev); |
| 946 | if (np->speed == 1000) |
| 947 | np->tx_coalesce = tx_coalesce; |
| 948 | else |
| 949 | np->tx_coalesce = 1; |
| 950 | macctrl = 0; |
| 951 | macctrl |= (np->vlan) ? AutoVLANuntagging : 0; |
| 952 | macctrl |= (np->full_duplex) ? DuplexSelect : 0; |
| 953 | macctrl |= (np->tx_flow) ? |
| 954 | TxFlowControlEnable : 0; |
| 955 | macctrl |= (np->rx_flow) ? |
| 956 | RxFlowControlEnable : 0; |
| 957 | writew(macctrl, ioaddr + MACCtrl); |
| 958 | np->link_status = 1; |
| 959 | netif_carrier_on(dev); |
| 960 | } else { |
| 961 | printk (KERN_INFO "%s: Link off\n", dev->name); |
| 962 | np->link_status = 0; |
| 963 | netif_carrier_off(dev); |
| 964 | } |
| 965 | } |
| 966 | |
| 967 | /* UpdateStats statistics registers */ |
| 968 | if (int_status & UpdateStats) { |
| 969 | get_stats (dev); |
| 970 | } |
| 971 | |
| 972 | /* PCI Error, a catastronphic error related to the bus interface |
| 973 | occurs, set GlobalReset and HostReset to reset. */ |
| 974 | if (int_status & HostError) { |
| 975 | printk (KERN_ERR "%s: HostError! IntStatus %4.4x.\n", |
| 976 | dev->name, int_status); |
| 977 | writew (GlobalReset | HostReset, ioaddr + ASICCtrl + 2); |
| 978 | mdelay (500); |
| 979 | } |
| 980 | } |
| 981 | |
| 982 | static struct net_device_stats * |
| 983 | get_stats (struct net_device *dev) |
| 984 | { |
| 985 | long ioaddr = dev->base_addr; |
| 986 | struct netdev_private *np = netdev_priv(dev); |
| 987 | #ifdef MEM_MAPPING |
| 988 | int i; |
| 989 | #endif |
| 990 | unsigned int stat_reg; |
| 991 | |
| 992 | /* All statistics registers need to be acknowledged, |
| 993 | else statistic overflow could cause problems */ |
| 994 | |
| 995 | np->stats.rx_packets += readl (ioaddr + FramesRcvOk); |
| 996 | np->stats.tx_packets += readl (ioaddr + FramesXmtOk); |
| 997 | np->stats.rx_bytes += readl (ioaddr + OctetRcvOk); |
| 998 | np->stats.tx_bytes += readl (ioaddr + OctetXmtOk); |
| 999 | |
| 1000 | np->stats.multicast = readl (ioaddr + McstFramesRcvdOk); |
| 1001 | np->stats.collisions += readl (ioaddr + SingleColFrames) |
| 1002 | + readl (ioaddr + MultiColFrames); |
| 1003 | |
| 1004 | /* detailed tx errors */ |
| 1005 | stat_reg = readw (ioaddr + FramesAbortXSColls); |
| 1006 | np->stats.tx_aborted_errors += stat_reg; |
| 1007 | np->stats.tx_errors += stat_reg; |
| 1008 | |
| 1009 | stat_reg = readw (ioaddr + CarrierSenseErrors); |
| 1010 | np->stats.tx_carrier_errors += stat_reg; |
| 1011 | np->stats.tx_errors += stat_reg; |
| 1012 | |
| 1013 | /* Clear all other statistic register. */ |
| 1014 | readl (ioaddr + McstOctetXmtOk); |
| 1015 | readw (ioaddr + BcstFramesXmtdOk); |
| 1016 | readl (ioaddr + McstFramesXmtdOk); |
| 1017 | readw (ioaddr + BcstFramesRcvdOk); |
| 1018 | readw (ioaddr + MacControlFramesRcvd); |
| 1019 | readw (ioaddr + FrameTooLongErrors); |
| 1020 | readw (ioaddr + InRangeLengthErrors); |
| 1021 | readw (ioaddr + FramesCheckSeqErrors); |
| 1022 | readw (ioaddr + FramesLostRxErrors); |
| 1023 | readl (ioaddr + McstOctetXmtOk); |
| 1024 | readl (ioaddr + BcstOctetXmtOk); |
| 1025 | readl (ioaddr + McstFramesXmtdOk); |
| 1026 | readl (ioaddr + FramesWDeferredXmt); |
| 1027 | readl (ioaddr + LateCollisions); |
| 1028 | readw (ioaddr + BcstFramesXmtdOk); |
| 1029 | readw (ioaddr + MacControlFramesXmtd); |
| 1030 | readw (ioaddr + FramesWEXDeferal); |
| 1031 | |
| 1032 | #ifdef MEM_MAPPING |
| 1033 | for (i = 0x100; i <= 0x150; i += 4) |
| 1034 | readl (ioaddr + i); |
| 1035 | #endif |
| 1036 | readw (ioaddr + TxJumboFrames); |
| 1037 | readw (ioaddr + RxJumboFrames); |
| 1038 | readw (ioaddr + TCPCheckSumErrors); |
| 1039 | readw (ioaddr + UDPCheckSumErrors); |
| 1040 | readw (ioaddr + IPCheckSumErrors); |
| 1041 | return &np->stats; |
| 1042 | } |
| 1043 | |
| 1044 | static int |
| 1045 | clear_stats (struct net_device *dev) |
| 1046 | { |
| 1047 | long ioaddr = dev->base_addr; |
| 1048 | #ifdef MEM_MAPPING |
| 1049 | int i; |
| 1050 | #endif |
| 1051 | |
| 1052 | /* All statistics registers need to be acknowledged, |
| 1053 | else statistic overflow could cause problems */ |
| 1054 | readl (ioaddr + FramesRcvOk); |
| 1055 | readl (ioaddr + FramesXmtOk); |
| 1056 | readl (ioaddr + OctetRcvOk); |
| 1057 | readl (ioaddr + OctetXmtOk); |
| 1058 | |
| 1059 | readl (ioaddr + McstFramesRcvdOk); |
| 1060 | readl (ioaddr + SingleColFrames); |
| 1061 | readl (ioaddr + MultiColFrames); |
| 1062 | readl (ioaddr + LateCollisions); |
| 1063 | /* detailed rx errors */ |
| 1064 | readw (ioaddr + FrameTooLongErrors); |
| 1065 | readw (ioaddr + InRangeLengthErrors); |
| 1066 | readw (ioaddr + FramesCheckSeqErrors); |
| 1067 | readw (ioaddr + FramesLostRxErrors); |
| 1068 | |
| 1069 | /* detailed tx errors */ |
| 1070 | readw (ioaddr + FramesAbortXSColls); |
| 1071 | readw (ioaddr + CarrierSenseErrors); |
| 1072 | |
| 1073 | /* Clear all other statistic register. */ |
| 1074 | readl (ioaddr + McstOctetXmtOk); |
| 1075 | readw (ioaddr + BcstFramesXmtdOk); |
| 1076 | readl (ioaddr + McstFramesXmtdOk); |
| 1077 | readw (ioaddr + BcstFramesRcvdOk); |
| 1078 | readw (ioaddr + MacControlFramesRcvd); |
| 1079 | readl (ioaddr + McstOctetXmtOk); |
| 1080 | readl (ioaddr + BcstOctetXmtOk); |
| 1081 | readl (ioaddr + McstFramesXmtdOk); |
| 1082 | readl (ioaddr + FramesWDeferredXmt); |
| 1083 | readw (ioaddr + BcstFramesXmtdOk); |
| 1084 | readw (ioaddr + MacControlFramesXmtd); |
| 1085 | readw (ioaddr + FramesWEXDeferal); |
| 1086 | #ifdef MEM_MAPPING |
| 1087 | for (i = 0x100; i <= 0x150; i += 4) |
| 1088 | readl (ioaddr + i); |
| 1089 | #endif |
| 1090 | readw (ioaddr + TxJumboFrames); |
| 1091 | readw (ioaddr + RxJumboFrames); |
| 1092 | readw (ioaddr + TCPCheckSumErrors); |
| 1093 | readw (ioaddr + UDPCheckSumErrors); |
| 1094 | readw (ioaddr + IPCheckSumErrors); |
| 1095 | return 0; |
| 1096 | } |
| 1097 | |
| 1098 | |
| 1099 | int |
| 1100 | change_mtu (struct net_device *dev, int new_mtu) |
| 1101 | { |
| 1102 | struct netdev_private *np = netdev_priv(dev); |
| 1103 | int max = (np->jumbo) ? MAX_JUMBO : 1536; |
| 1104 | |
| 1105 | if ((new_mtu < 68) || (new_mtu > max)) { |
| 1106 | return -EINVAL; |
| 1107 | } |
| 1108 | |
| 1109 | dev->mtu = new_mtu; |
| 1110 | |
| 1111 | return 0; |
| 1112 | } |
| 1113 | |
| 1114 | static void |
| 1115 | set_multicast (struct net_device *dev) |
| 1116 | { |
| 1117 | long ioaddr = dev->base_addr; |
| 1118 | u32 hash_table[2]; |
| 1119 | u16 rx_mode = 0; |
| 1120 | struct netdev_private *np = netdev_priv(dev); |
| 1121 | |
| 1122 | hash_table[0] = hash_table[1] = 0; |
| 1123 | /* RxFlowcontrol DA: 01-80-C2-00-00-01. Hash index=0x39 */ |
| 1124 | hash_table[1] |= cpu_to_le32(0x02000000); |
| 1125 | if (dev->flags & IFF_PROMISC) { |
| 1126 | /* Receive all frames promiscuously. */ |
| 1127 | rx_mode = ReceiveAllFrames; |
| 1128 | } else if ((dev->flags & IFF_ALLMULTI) || |
| 1129 | (dev->mc_count > multicast_filter_limit)) { |
| 1130 | /* Receive broadcast and multicast frames */ |
| 1131 | rx_mode = ReceiveBroadcast | ReceiveMulticast | ReceiveUnicast; |
| 1132 | } else if (dev->mc_count > 0) { |
| 1133 | int i; |
| 1134 | struct dev_mc_list *mclist; |
| 1135 | /* Receive broadcast frames and multicast frames filtering |
| 1136 | by Hashtable */ |
| 1137 | rx_mode = |
| 1138 | ReceiveBroadcast | ReceiveMulticastHash | ReceiveUnicast; |
| 1139 | for (i=0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 1140 | i++, mclist=mclist->next) |
| 1141 | { |
| 1142 | int bit, index = 0; |
| 1143 | int crc = ether_crc_le (ETH_ALEN, mclist->dmi_addr); |
| 1144 | /* The inverted high significant 6 bits of CRC are |
| 1145 | used as an index to hashtable */ |
| 1146 | for (bit = 0; bit < 6; bit++) |
| 1147 | if (crc & (1 << (31 - bit))) |
| 1148 | index |= (1 << bit); |
| 1149 | hash_table[index / 32] |= (1 << (index % 32)); |
| 1150 | } |
| 1151 | } else { |
| 1152 | rx_mode = ReceiveBroadcast | ReceiveUnicast; |
| 1153 | } |
| 1154 | if (np->vlan) { |
| 1155 | /* ReceiveVLANMatch field in ReceiveMode */ |
| 1156 | rx_mode |= ReceiveVLANMatch; |
| 1157 | } |
| 1158 | |
| 1159 | writel (hash_table[0], ioaddr + HashTable0); |
| 1160 | writel (hash_table[1], ioaddr + HashTable1); |
| 1161 | writew (rx_mode, ioaddr + ReceiveMode); |
| 1162 | } |
| 1163 | |
| 1164 | static void rio_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 1165 | { |
| 1166 | struct netdev_private *np = netdev_priv(dev); |
| 1167 | strcpy(info->driver, "dl2k"); |
| 1168 | strcpy(info->version, DRV_VERSION); |
| 1169 | strcpy(info->bus_info, pci_name(np->pdev)); |
| 1170 | } |
| 1171 | |
| 1172 | static int rio_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1173 | { |
| 1174 | struct netdev_private *np = netdev_priv(dev); |
| 1175 | if (np->phy_media) { |
| 1176 | /* fiber device */ |
| 1177 | cmd->supported = SUPPORTED_Autoneg | SUPPORTED_FIBRE; |
| 1178 | cmd->advertising= ADVERTISED_Autoneg | ADVERTISED_FIBRE; |
| 1179 | cmd->port = PORT_FIBRE; |
| 1180 | cmd->transceiver = XCVR_INTERNAL; |
| 1181 | } else { |
| 1182 | /* copper device */ |
| 1183 | cmd->supported = SUPPORTED_10baseT_Half | |
| 1184 | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half |
| 1185 | | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full | |
| 1186 | SUPPORTED_Autoneg | SUPPORTED_MII; |
| 1187 | cmd->advertising = ADVERTISED_10baseT_Half | |
| 1188 | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | |
| 1189 | ADVERTISED_100baseT_Full | ADVERTISED_1000baseT_Full| |
| 1190 | ADVERTISED_Autoneg | ADVERTISED_MII; |
| 1191 | cmd->port = PORT_MII; |
| 1192 | cmd->transceiver = XCVR_INTERNAL; |
| 1193 | } |
| 1194 | if ( np->link_status ) { |
| 1195 | cmd->speed = np->speed; |
| 1196 | cmd->duplex = np->full_duplex ? DUPLEX_FULL : DUPLEX_HALF; |
| 1197 | } else { |
| 1198 | cmd->speed = -1; |
| 1199 | cmd->duplex = -1; |
| 1200 | } |
| 1201 | if ( np->an_enable) |
| 1202 | cmd->autoneg = AUTONEG_ENABLE; |
| 1203 | else |
| 1204 | cmd->autoneg = AUTONEG_DISABLE; |
| 1205 | |
| 1206 | cmd->phy_address = np->phy_addr; |
| 1207 | return 0; |
| 1208 | } |
| 1209 | |
| 1210 | static int rio_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1211 | { |
| 1212 | struct netdev_private *np = netdev_priv(dev); |
| 1213 | netif_carrier_off(dev); |
| 1214 | if (cmd->autoneg == AUTONEG_ENABLE) { |
| 1215 | if (np->an_enable) |
| 1216 | return 0; |
| 1217 | else { |
| 1218 | np->an_enable = 1; |
| 1219 | mii_set_media(dev); |
| 1220 | return 0; |
| 1221 | } |
| 1222 | } else { |
| 1223 | np->an_enable = 0; |
| 1224 | if (np->speed == 1000) { |
| 1225 | cmd->speed = SPEED_100; |
| 1226 | cmd->duplex = DUPLEX_FULL; |
| 1227 | printk("Warning!! Can't disable Auto negotiation in 1000Mbps, change to Manual 100Mbps, Full duplex.\n"); |
| 1228 | } |
| 1229 | switch(cmd->speed + cmd->duplex) { |
| 1230 | |
| 1231 | case SPEED_10 + DUPLEX_HALF: |
| 1232 | np->speed = 10; |
| 1233 | np->full_duplex = 0; |
| 1234 | break; |
| 1235 | |
| 1236 | case SPEED_10 + DUPLEX_FULL: |
| 1237 | np->speed = 10; |
| 1238 | np->full_duplex = 1; |
| 1239 | break; |
| 1240 | case SPEED_100 + DUPLEX_HALF: |
| 1241 | np->speed = 100; |
| 1242 | np->full_duplex = 0; |
| 1243 | break; |
| 1244 | case SPEED_100 + DUPLEX_FULL: |
| 1245 | np->speed = 100; |
| 1246 | np->full_duplex = 1; |
| 1247 | break; |
| 1248 | case SPEED_1000 + DUPLEX_HALF:/* not supported */ |
| 1249 | case SPEED_1000 + DUPLEX_FULL:/* not supported */ |
| 1250 | default: |
| 1251 | return -EINVAL; |
| 1252 | } |
| 1253 | mii_set_media(dev); |
| 1254 | } |
| 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | static u32 rio_get_link(struct net_device *dev) |
| 1259 | { |
| 1260 | struct netdev_private *np = netdev_priv(dev); |
| 1261 | return np->link_status; |
| 1262 | } |
| 1263 | |
| 1264 | static struct ethtool_ops ethtool_ops = { |
| 1265 | .get_drvinfo = rio_get_drvinfo, |
| 1266 | .get_settings = rio_get_settings, |
| 1267 | .set_settings = rio_set_settings, |
| 1268 | .get_link = rio_get_link, |
| 1269 | }; |
| 1270 | |
| 1271 | static int |
| 1272 | rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) |
| 1273 | { |
| 1274 | int phy_addr; |
| 1275 | struct netdev_private *np = netdev_priv(dev); |
| 1276 | struct mii_data *miidata = (struct mii_data *) &rq->ifr_ifru; |
| 1277 | |
| 1278 | struct netdev_desc *desc; |
| 1279 | int i; |
| 1280 | |
| 1281 | phy_addr = np->phy_addr; |
| 1282 | switch (cmd) { |
| 1283 | case SIOCDEVPRIVATE: |
| 1284 | break; |
| 1285 | |
| 1286 | case SIOCDEVPRIVATE + 1: |
| 1287 | miidata->out_value = mii_read (dev, phy_addr, miidata->reg_num); |
| 1288 | break; |
| 1289 | case SIOCDEVPRIVATE + 2: |
| 1290 | mii_write (dev, phy_addr, miidata->reg_num, miidata->in_value); |
| 1291 | break; |
| 1292 | case SIOCDEVPRIVATE + 3: |
| 1293 | break; |
| 1294 | case SIOCDEVPRIVATE + 4: |
| 1295 | break; |
| 1296 | case SIOCDEVPRIVATE + 5: |
| 1297 | netif_stop_queue (dev); |
| 1298 | break; |
| 1299 | case SIOCDEVPRIVATE + 6: |
| 1300 | netif_wake_queue (dev); |
| 1301 | break; |
| 1302 | case SIOCDEVPRIVATE + 7: |
| 1303 | printk |
| 1304 | ("tx_full=%x cur_tx=%lx old_tx=%lx cur_rx=%lx old_rx=%lx\n", |
| 1305 | netif_queue_stopped(dev), np->cur_tx, np->old_tx, np->cur_rx, |
| 1306 | np->old_rx); |
| 1307 | break; |
| 1308 | case SIOCDEVPRIVATE + 8: |
| 1309 | printk("TX ring:\n"); |
| 1310 | for (i = 0; i < TX_RING_SIZE; i++) { |
| 1311 | desc = &np->tx_ring[i]; |
| 1312 | printk |
| 1313 | ("%02x:cur:%08x next:%08x status:%08x frag1:%08x frag0:%08x", |
| 1314 | i, |
| 1315 | (u32) (np->tx_ring_dma + i * sizeof (*desc)), |
| 1316 | (u32) desc->next_desc, |
| 1317 | (u32) desc->status, (u32) (desc->fraginfo >> 32), |
| 1318 | (u32) desc->fraginfo); |
| 1319 | printk ("\n"); |
| 1320 | } |
| 1321 | printk ("\n"); |
| 1322 | break; |
| 1323 | |
| 1324 | default: |
| 1325 | return -EOPNOTSUPP; |
| 1326 | } |
| 1327 | return 0; |
| 1328 | } |
| 1329 | |
| 1330 | #define EEP_READ 0x0200 |
| 1331 | #define EEP_BUSY 0x8000 |
| 1332 | /* Read the EEPROM word */ |
| 1333 | /* We use I/O instruction to read/write eeprom to avoid fail on some machines */ |
| 1334 | int |
| 1335 | read_eeprom (long ioaddr, int eep_addr) |
| 1336 | { |
| 1337 | int i = 1000; |
| 1338 | outw (EEP_READ | (eep_addr & 0xff), ioaddr + EepromCtrl); |
| 1339 | while (i-- > 0) { |
| 1340 | if (!(inw (ioaddr + EepromCtrl) & EEP_BUSY)) { |
| 1341 | return inw (ioaddr + EepromData); |
| 1342 | } |
| 1343 | } |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | enum phy_ctrl_bits { |
| 1348 | MII_READ = 0x00, MII_CLK = 0x01, MII_DATA1 = 0x02, MII_WRITE = 0x04, |
| 1349 | MII_DUPLEX = 0x08, |
| 1350 | }; |
| 1351 | |
| 1352 | #define mii_delay() readb(ioaddr) |
| 1353 | static void |
| 1354 | mii_sendbit (struct net_device *dev, u32 data) |
| 1355 | { |
| 1356 | long ioaddr = dev->base_addr + PhyCtrl; |
| 1357 | data = (data) ? MII_DATA1 : 0; |
| 1358 | data |= MII_WRITE; |
| 1359 | data |= (readb (ioaddr) & 0xf8) | MII_WRITE; |
| 1360 | writeb (data, ioaddr); |
| 1361 | mii_delay (); |
| 1362 | writeb (data | MII_CLK, ioaddr); |
| 1363 | mii_delay (); |
| 1364 | } |
| 1365 | |
| 1366 | static int |
| 1367 | mii_getbit (struct net_device *dev) |
| 1368 | { |
| 1369 | long ioaddr = dev->base_addr + PhyCtrl; |
| 1370 | u8 data; |
| 1371 | |
| 1372 | data = (readb (ioaddr) & 0xf8) | MII_READ; |
| 1373 | writeb (data, ioaddr); |
| 1374 | mii_delay (); |
| 1375 | writeb (data | MII_CLK, ioaddr); |
| 1376 | mii_delay (); |
| 1377 | return ((readb (ioaddr) >> 1) & 1); |
| 1378 | } |
| 1379 | |
| 1380 | static void |
| 1381 | mii_send_bits (struct net_device *dev, u32 data, int len) |
| 1382 | { |
| 1383 | int i; |
| 1384 | for (i = len - 1; i >= 0; i--) { |
| 1385 | mii_sendbit (dev, data & (1 << i)); |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | static int |
| 1390 | mii_read (struct net_device *dev, int phy_addr, int reg_num) |
| 1391 | { |
| 1392 | u32 cmd; |
| 1393 | int i; |
| 1394 | u32 retval = 0; |
| 1395 | |
| 1396 | /* Preamble */ |
| 1397 | mii_send_bits (dev, 0xffffffff, 32); |
| 1398 | /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */ |
| 1399 | /* ST,OP = 0110'b for read operation */ |
| 1400 | cmd = (0x06 << 10 | phy_addr << 5 | reg_num); |
| 1401 | mii_send_bits (dev, cmd, 14); |
| 1402 | /* Turnaround */ |
| 1403 | if (mii_getbit (dev)) |
| 1404 | goto err_out; |
| 1405 | /* Read data */ |
| 1406 | for (i = 0; i < 16; i++) { |
| 1407 | retval |= mii_getbit (dev); |
| 1408 | retval <<= 1; |
| 1409 | } |
| 1410 | /* End cycle */ |
| 1411 | mii_getbit (dev); |
| 1412 | return (retval >> 1) & 0xffff; |
| 1413 | |
| 1414 | err_out: |
| 1415 | return 0; |
| 1416 | } |
| 1417 | static int |
| 1418 | mii_write (struct net_device *dev, int phy_addr, int reg_num, u16 data) |
| 1419 | { |
| 1420 | u32 cmd; |
| 1421 | |
| 1422 | /* Preamble */ |
| 1423 | mii_send_bits (dev, 0xffffffff, 32); |
| 1424 | /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */ |
| 1425 | /* ST,OP,AAAAA,RRRRR,TA = 0101xxxxxxxxxx10'b = 0x5002 for write */ |
| 1426 | cmd = (0x5002 << 16) | (phy_addr << 23) | (reg_num << 18) | data; |
| 1427 | mii_send_bits (dev, cmd, 32); |
| 1428 | /* End cycle */ |
| 1429 | mii_getbit (dev); |
| 1430 | return 0; |
| 1431 | } |
| 1432 | static int |
| 1433 | mii_wait_link (struct net_device *dev, int wait) |
| 1434 | { |
| 1435 | BMSR_t bmsr; |
| 1436 | int phy_addr; |
| 1437 | struct netdev_private *np; |
| 1438 | |
| 1439 | np = netdev_priv(dev); |
| 1440 | phy_addr = np->phy_addr; |
| 1441 | |
| 1442 | do { |
| 1443 | bmsr.image = mii_read (dev, phy_addr, MII_BMSR); |
| 1444 | if (bmsr.bits.link_status) |
| 1445 | return 0; |
| 1446 | mdelay (1); |
| 1447 | } while (--wait > 0); |
| 1448 | return -1; |
| 1449 | } |
| 1450 | static int |
| 1451 | mii_get_media (struct net_device *dev) |
| 1452 | { |
| 1453 | ANAR_t negotiate; |
| 1454 | BMSR_t bmsr; |
| 1455 | BMCR_t bmcr; |
| 1456 | MSCR_t mscr; |
| 1457 | MSSR_t mssr; |
| 1458 | int phy_addr; |
| 1459 | struct netdev_private *np; |
| 1460 | |
| 1461 | np = netdev_priv(dev); |
| 1462 | phy_addr = np->phy_addr; |
| 1463 | |
| 1464 | bmsr.image = mii_read (dev, phy_addr, MII_BMSR); |
| 1465 | if (np->an_enable) { |
| 1466 | if (!bmsr.bits.an_complete) { |
| 1467 | /* Auto-Negotiation not completed */ |
| 1468 | return -1; |
| 1469 | } |
| 1470 | negotiate.image = mii_read (dev, phy_addr, MII_ANAR) & |
| 1471 | mii_read (dev, phy_addr, MII_ANLPAR); |
| 1472 | mscr.image = mii_read (dev, phy_addr, MII_MSCR); |
| 1473 | mssr.image = mii_read (dev, phy_addr, MII_MSSR); |
| 1474 | if (mscr.bits.media_1000BT_FD & mssr.bits.lp_1000BT_FD) { |
| 1475 | np->speed = 1000; |
| 1476 | np->full_duplex = 1; |
| 1477 | printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n"); |
| 1478 | } else if (mscr.bits.media_1000BT_HD & mssr.bits.lp_1000BT_HD) { |
| 1479 | np->speed = 1000; |
| 1480 | np->full_duplex = 0; |
| 1481 | printk (KERN_INFO "Auto 1000 Mbps, Half duplex\n"); |
| 1482 | } else if (negotiate.bits.media_100BX_FD) { |
| 1483 | np->speed = 100; |
| 1484 | np->full_duplex = 1; |
| 1485 | printk (KERN_INFO "Auto 100 Mbps, Full duplex\n"); |
| 1486 | } else if (negotiate.bits.media_100BX_HD) { |
| 1487 | np->speed = 100; |
| 1488 | np->full_duplex = 0; |
| 1489 | printk (KERN_INFO "Auto 100 Mbps, Half duplex\n"); |
| 1490 | } else if (negotiate.bits.media_10BT_FD) { |
| 1491 | np->speed = 10; |
| 1492 | np->full_duplex = 1; |
| 1493 | printk (KERN_INFO "Auto 10 Mbps, Full duplex\n"); |
| 1494 | } else if (negotiate.bits.media_10BT_HD) { |
| 1495 | np->speed = 10; |
| 1496 | np->full_duplex = 0; |
| 1497 | printk (KERN_INFO "Auto 10 Mbps, Half duplex\n"); |
| 1498 | } |
| 1499 | if (negotiate.bits.pause) { |
| 1500 | np->tx_flow &= 1; |
| 1501 | np->rx_flow &= 1; |
| 1502 | } else if (negotiate.bits.asymmetric) { |
| 1503 | np->tx_flow = 0; |
| 1504 | np->rx_flow &= 1; |
| 1505 | } |
| 1506 | /* else tx_flow, rx_flow = user select */ |
| 1507 | } else { |
| 1508 | bmcr.image = mii_read (dev, phy_addr, MII_BMCR); |
| 1509 | if (bmcr.bits.speed100 == 1 && bmcr.bits.speed1000 == 0) { |
| 1510 | printk (KERN_INFO "Operating at 100 Mbps, "); |
| 1511 | } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 0) { |
| 1512 | printk (KERN_INFO "Operating at 10 Mbps, "); |
| 1513 | } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 1) { |
| 1514 | printk (KERN_INFO "Operating at 1000 Mbps, "); |
| 1515 | } |
| 1516 | if (bmcr.bits.duplex_mode) { |
| 1517 | printk ("Full duplex\n"); |
| 1518 | } else { |
| 1519 | printk ("Half duplex\n"); |
| 1520 | } |
| 1521 | } |
| 1522 | if (np->tx_flow) |
| 1523 | printk(KERN_INFO "Enable Tx Flow Control\n"); |
| 1524 | else |
| 1525 | printk(KERN_INFO "Disable Tx Flow Control\n"); |
| 1526 | if (np->rx_flow) |
| 1527 | printk(KERN_INFO "Enable Rx Flow Control\n"); |
| 1528 | else |
| 1529 | printk(KERN_INFO "Disable Rx Flow Control\n"); |
| 1530 | |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | static int |
| 1535 | mii_set_media (struct net_device *dev) |
| 1536 | { |
| 1537 | PHY_SCR_t pscr; |
| 1538 | BMCR_t bmcr; |
| 1539 | BMSR_t bmsr; |
| 1540 | ANAR_t anar; |
| 1541 | int phy_addr; |
| 1542 | struct netdev_private *np; |
| 1543 | np = netdev_priv(dev); |
| 1544 | phy_addr = np->phy_addr; |
| 1545 | |
| 1546 | /* Does user set speed? */ |
| 1547 | if (np->an_enable) { |
| 1548 | /* Advertise capabilities */ |
| 1549 | bmsr.image = mii_read (dev, phy_addr, MII_BMSR); |
| 1550 | anar.image = mii_read (dev, phy_addr, MII_ANAR); |
| 1551 | anar.bits.media_100BX_FD = bmsr.bits.media_100BX_FD; |
| 1552 | anar.bits.media_100BX_HD = bmsr.bits.media_100BX_HD; |
| 1553 | anar.bits.media_100BT4 = bmsr.bits.media_100BT4; |
| 1554 | anar.bits.media_10BT_FD = bmsr.bits.media_10BT_FD; |
| 1555 | anar.bits.media_10BT_HD = bmsr.bits.media_10BT_HD; |
| 1556 | anar.bits.pause = 1; |
| 1557 | anar.bits.asymmetric = 1; |
| 1558 | mii_write (dev, phy_addr, MII_ANAR, anar.image); |
| 1559 | |
| 1560 | /* Enable Auto crossover */ |
| 1561 | pscr.image = mii_read (dev, phy_addr, MII_PHY_SCR); |
| 1562 | pscr.bits.mdi_crossover_mode = 3; /* 11'b */ |
| 1563 | mii_write (dev, phy_addr, MII_PHY_SCR, pscr.image); |
| 1564 | |
| 1565 | /* Soft reset PHY */ |
| 1566 | mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET); |
| 1567 | bmcr.image = 0; |
| 1568 | bmcr.bits.an_enable = 1; |
| 1569 | bmcr.bits.restart_an = 1; |
| 1570 | bmcr.bits.reset = 1; |
| 1571 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1572 | mdelay(1); |
| 1573 | } else { |
| 1574 | /* Force speed setting */ |
| 1575 | /* 1) Disable Auto crossover */ |
| 1576 | pscr.image = mii_read (dev, phy_addr, MII_PHY_SCR); |
| 1577 | pscr.bits.mdi_crossover_mode = 0; |
| 1578 | mii_write (dev, phy_addr, MII_PHY_SCR, pscr.image); |
| 1579 | |
| 1580 | /* 2) PHY Reset */ |
| 1581 | bmcr.image = mii_read (dev, phy_addr, MII_BMCR); |
| 1582 | bmcr.bits.reset = 1; |
| 1583 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1584 | |
| 1585 | /* 3) Power Down */ |
| 1586 | bmcr.image = 0x1940; /* must be 0x1940 */ |
| 1587 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1588 | mdelay (100); /* wait a certain time */ |
| 1589 | |
| 1590 | /* 4) Advertise nothing */ |
| 1591 | mii_write (dev, phy_addr, MII_ANAR, 0); |
| 1592 | |
| 1593 | /* 5) Set media and Power Up */ |
| 1594 | bmcr.image = 0; |
| 1595 | bmcr.bits.power_down = 1; |
| 1596 | if (np->speed == 100) { |
| 1597 | bmcr.bits.speed100 = 1; |
| 1598 | bmcr.bits.speed1000 = 0; |
| 1599 | printk (KERN_INFO "Manual 100 Mbps, "); |
| 1600 | } else if (np->speed == 10) { |
| 1601 | bmcr.bits.speed100 = 0; |
| 1602 | bmcr.bits.speed1000 = 0; |
| 1603 | printk (KERN_INFO "Manual 10 Mbps, "); |
| 1604 | } |
| 1605 | if (np->full_duplex) { |
| 1606 | bmcr.bits.duplex_mode = 1; |
| 1607 | printk ("Full duplex\n"); |
| 1608 | } else { |
| 1609 | bmcr.bits.duplex_mode = 0; |
| 1610 | printk ("Half duplex\n"); |
| 1611 | } |
| 1612 | #if 0 |
| 1613 | /* Set 1000BaseT Master/Slave setting */ |
| 1614 | mscr.image = mii_read (dev, phy_addr, MII_MSCR); |
| 1615 | mscr.bits.cfg_enable = 1; |
| 1616 | mscr.bits.cfg_value = 0; |
| 1617 | #endif |
| 1618 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1619 | mdelay(10); |
| 1620 | } |
| 1621 | return 0; |
| 1622 | } |
| 1623 | |
| 1624 | static int |
| 1625 | mii_get_media_pcs (struct net_device *dev) |
| 1626 | { |
| 1627 | ANAR_PCS_t negotiate; |
| 1628 | BMSR_t bmsr; |
| 1629 | BMCR_t bmcr; |
| 1630 | int phy_addr; |
| 1631 | struct netdev_private *np; |
| 1632 | |
| 1633 | np = netdev_priv(dev); |
| 1634 | phy_addr = np->phy_addr; |
| 1635 | |
| 1636 | bmsr.image = mii_read (dev, phy_addr, PCS_BMSR); |
| 1637 | if (np->an_enable) { |
| 1638 | if (!bmsr.bits.an_complete) { |
| 1639 | /* Auto-Negotiation not completed */ |
| 1640 | return -1; |
| 1641 | } |
| 1642 | negotiate.image = mii_read (dev, phy_addr, PCS_ANAR) & |
| 1643 | mii_read (dev, phy_addr, PCS_ANLPAR); |
| 1644 | np->speed = 1000; |
| 1645 | if (negotiate.bits.full_duplex) { |
| 1646 | printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n"); |
| 1647 | np->full_duplex = 1; |
| 1648 | } else { |
| 1649 | printk (KERN_INFO "Auto 1000 Mbps, half duplex\n"); |
| 1650 | np->full_duplex = 0; |
| 1651 | } |
| 1652 | if (negotiate.bits.pause) { |
| 1653 | np->tx_flow &= 1; |
| 1654 | np->rx_flow &= 1; |
| 1655 | } else if (negotiate.bits.asymmetric) { |
| 1656 | np->tx_flow = 0; |
| 1657 | np->rx_flow &= 1; |
| 1658 | } |
| 1659 | /* else tx_flow, rx_flow = user select */ |
| 1660 | } else { |
| 1661 | bmcr.image = mii_read (dev, phy_addr, PCS_BMCR); |
| 1662 | printk (KERN_INFO "Operating at 1000 Mbps, "); |
| 1663 | if (bmcr.bits.duplex_mode) { |
| 1664 | printk ("Full duplex\n"); |
| 1665 | } else { |
| 1666 | printk ("Half duplex\n"); |
| 1667 | } |
| 1668 | } |
| 1669 | if (np->tx_flow) |
| 1670 | printk(KERN_INFO "Enable Tx Flow Control\n"); |
| 1671 | else |
| 1672 | printk(KERN_INFO "Disable Tx Flow Control\n"); |
| 1673 | if (np->rx_flow) |
| 1674 | printk(KERN_INFO "Enable Rx Flow Control\n"); |
| 1675 | else |
| 1676 | printk(KERN_INFO "Disable Rx Flow Control\n"); |
| 1677 | |
| 1678 | return 0; |
| 1679 | } |
| 1680 | |
| 1681 | static int |
| 1682 | mii_set_media_pcs (struct net_device *dev) |
| 1683 | { |
| 1684 | BMCR_t bmcr; |
| 1685 | ESR_t esr; |
| 1686 | ANAR_PCS_t anar; |
| 1687 | int phy_addr; |
| 1688 | struct netdev_private *np; |
| 1689 | np = netdev_priv(dev); |
| 1690 | phy_addr = np->phy_addr; |
| 1691 | |
| 1692 | /* Auto-Negotiation? */ |
| 1693 | if (np->an_enable) { |
| 1694 | /* Advertise capabilities */ |
| 1695 | esr.image = mii_read (dev, phy_addr, PCS_ESR); |
| 1696 | anar.image = mii_read (dev, phy_addr, MII_ANAR); |
| 1697 | anar.bits.half_duplex = |
| 1698 | esr.bits.media_1000BT_HD | esr.bits.media_1000BX_HD; |
| 1699 | anar.bits.full_duplex = |
| 1700 | esr.bits.media_1000BT_FD | esr.bits.media_1000BX_FD; |
| 1701 | anar.bits.pause = 1; |
| 1702 | anar.bits.asymmetric = 1; |
| 1703 | mii_write (dev, phy_addr, MII_ANAR, anar.image); |
| 1704 | |
| 1705 | /* Soft reset PHY */ |
| 1706 | mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET); |
| 1707 | bmcr.image = 0; |
| 1708 | bmcr.bits.an_enable = 1; |
| 1709 | bmcr.bits.restart_an = 1; |
| 1710 | bmcr.bits.reset = 1; |
| 1711 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1712 | mdelay(1); |
| 1713 | } else { |
| 1714 | /* Force speed setting */ |
| 1715 | /* PHY Reset */ |
| 1716 | bmcr.image = 0; |
| 1717 | bmcr.bits.reset = 1; |
| 1718 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1719 | mdelay(10); |
| 1720 | bmcr.image = 0; |
| 1721 | bmcr.bits.an_enable = 0; |
| 1722 | if (np->full_duplex) { |
| 1723 | bmcr.bits.duplex_mode = 1; |
| 1724 | printk (KERN_INFO "Manual full duplex\n"); |
| 1725 | } else { |
| 1726 | bmcr.bits.duplex_mode = 0; |
| 1727 | printk (KERN_INFO "Manual half duplex\n"); |
| 1728 | } |
| 1729 | mii_write (dev, phy_addr, MII_BMCR, bmcr.image); |
| 1730 | mdelay(10); |
| 1731 | |
| 1732 | /* Advertise nothing */ |
| 1733 | mii_write (dev, phy_addr, MII_ANAR, 0); |
| 1734 | } |
| 1735 | return 0; |
| 1736 | } |
| 1737 | |
| 1738 | |
| 1739 | static int |
| 1740 | rio_close (struct net_device *dev) |
| 1741 | { |
| 1742 | long ioaddr = dev->base_addr; |
| 1743 | struct netdev_private *np = netdev_priv(dev); |
| 1744 | struct sk_buff *skb; |
| 1745 | int i; |
| 1746 | |
| 1747 | netif_stop_queue (dev); |
| 1748 | |
| 1749 | /* Disable interrupts */ |
| 1750 | writew (0, ioaddr + IntEnable); |
| 1751 | |
| 1752 | /* Stop Tx and Rx logics */ |
| 1753 | writel (TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl); |
| 1754 | synchronize_irq (dev->irq); |
| 1755 | free_irq (dev->irq, dev); |
| 1756 | del_timer_sync (&np->timer); |
| 1757 | |
| 1758 | /* Free all the skbuffs in the queue. */ |
| 1759 | for (i = 0; i < RX_RING_SIZE; i++) { |
| 1760 | np->rx_ring[i].status = 0; |
| 1761 | np->rx_ring[i].fraginfo = 0; |
| 1762 | skb = np->rx_skbuff[i]; |
| 1763 | if (skb) { |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 1764 | pci_unmap_single(np->pdev, |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 1765 | np->rx_ring[i].fraginfo & DMA_48BIT_MASK, |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 1766 | skb->len, PCI_DMA_FROMDEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | dev_kfree_skb (skb); |
| 1768 | np->rx_skbuff[i] = NULL; |
| 1769 | } |
| 1770 | } |
| 1771 | for (i = 0; i < TX_RING_SIZE; i++) { |
| 1772 | skb = np->tx_skbuff[i]; |
| 1773 | if (skb) { |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 1774 | pci_unmap_single(np->pdev, |
Francois Romieu | 4c1b462 | 2006-05-10 12:48:57 -0700 | [diff] [blame] | 1775 | np->tx_ring[i].fraginfo & DMA_48BIT_MASK, |
Jon Mason | 9ee09d9 | 2006-03-10 15:12:10 -0600 | [diff] [blame] | 1776 | skb->len, PCI_DMA_TODEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | dev_kfree_skb (skb); |
| 1778 | np->tx_skbuff[i] = NULL; |
| 1779 | } |
| 1780 | } |
| 1781 | |
| 1782 | return 0; |
| 1783 | } |
| 1784 | |
| 1785 | static void __devexit |
| 1786 | rio_remove1 (struct pci_dev *pdev) |
| 1787 | { |
| 1788 | struct net_device *dev = pci_get_drvdata (pdev); |
| 1789 | |
| 1790 | if (dev) { |
| 1791 | struct netdev_private *np = netdev_priv(dev); |
| 1792 | |
| 1793 | unregister_netdev (dev); |
| 1794 | pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, |
| 1795 | np->rx_ring_dma); |
| 1796 | pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, |
| 1797 | np->tx_ring_dma); |
| 1798 | #ifdef MEM_MAPPING |
| 1799 | iounmap ((char *) (dev->base_addr)); |
| 1800 | #endif |
| 1801 | free_netdev (dev); |
| 1802 | pci_release_regions (pdev); |
| 1803 | pci_disable_device (pdev); |
| 1804 | } |
| 1805 | pci_set_drvdata (pdev, NULL); |
| 1806 | } |
| 1807 | |
| 1808 | static struct pci_driver rio_driver = { |
| 1809 | .name = "dl2k", |
| 1810 | .id_table = rio_pci_tbl, |
| 1811 | .probe = rio_probe1, |
| 1812 | .remove = __devexit_p(rio_remove1), |
| 1813 | }; |
| 1814 | |
| 1815 | static int __init |
| 1816 | rio_init (void) |
| 1817 | { |
| 1818 | return pci_module_init (&rio_driver); |
| 1819 | } |
| 1820 | |
| 1821 | static void __exit |
| 1822 | rio_exit (void) |
| 1823 | { |
| 1824 | pci_unregister_driver (&rio_driver); |
| 1825 | } |
| 1826 | |
| 1827 | module_init (rio_init); |
| 1828 | module_exit (rio_exit); |
| 1829 | |
| 1830 | /* |
| 1831 | |
| 1832 | Compile command: |
| 1833 | |
| 1834 | gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -c dl2k.c |
| 1835 | |
| 1836 | Read Documentation/networking/dl2k.txt for details. |
| 1837 | |
| 1838 | */ |
| 1839 | |