Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * olympic.c (c) 1999 Peter De Schrijver All Rights Reserved |
| 3 | * 1999/2000 Mike Phillips (mikep@linuxtr.net) |
| 4 | * |
| 5 | * Linux driver for IBM PCI tokenring cards based on the Pit/Pit-Phy/Olympic |
| 6 | * chipset. |
| 7 | * |
| 8 | * Base Driver Skeleton: |
| 9 | * Written 1993-94 by Donald Becker. |
| 10 | * |
| 11 | * Copyright 1993 United States Government as represented by the |
| 12 | * Director, National Security Agency. |
| 13 | * |
| 14 | * Thanks to Erik De Cock, Adrian Bridgett and Frank Fiene for their |
| 15 | * assistance and perserverance with the testing of this driver. |
| 16 | * |
| 17 | * This software may be used and distributed according to the terms |
| 18 | * of the GNU General Public License, incorporated herein by reference. |
| 19 | * |
| 20 | * 4/27/99 - Alpha Release 0.1.0 |
| 21 | * First release to the public |
| 22 | * |
| 23 | * 6/8/99 - Official Release 0.2.0 |
| 24 | * Merged into the kernel code |
| 25 | * 8/18/99 - Updated driver for 2.3.13 kernel to use new pci |
| 26 | * resource. Driver also reports the card name returned by |
| 27 | * the pci resource. |
| 28 | * 1/11/00 - Added spinlocks for smp |
| 29 | * 2/23/00 - Updated to dev_kfree_irq |
| 30 | * 3/10/00 - Fixed FDX enable which triggered other bugs also |
| 31 | * squashed. |
| 32 | * 5/20/00 - Changes to handle Olympic on LinuxPPC. Endian changes. |
| 33 | * The odd thing about the changes is that the fix for |
| 34 | * endian issues with the big-endian data in the arb, asb... |
| 35 | * was to always swab() the bytes, no matter what CPU. |
| 36 | * That's because the read[wl]() functions always swap the |
| 37 | * bytes on the way in on PPC. |
| 38 | * Fixing the hardware descriptors was another matter, |
| 39 | * because they weren't going through read[wl](), there all |
| 40 | * the results had to be in memory in le32 values. kdaaker |
| 41 | * |
| 42 | * 12/23/00 - Added minimal Cardbus support (Thanks Donald). |
| 43 | * |
| 44 | * 03/09/01 - Add new pci api, dev_base_lock, general clean up. |
| 45 | * |
| 46 | * 03/27/01 - Add new dma pci (Thanks to Kyle Lucke) and alloc_trdev |
| 47 | * Change proc_fs behaviour, now one entry per adapter. |
| 48 | * |
| 49 | * 04/09/01 - Couple of bug fixes to the dma unmaps and ejecting the |
| 50 | * adapter when live does not take the system down with it. |
| 51 | * |
| 52 | * 06/02/01 - Clean up, copy skb for small packets |
| 53 | * |
| 54 | * 06/22/01 - Add EISR error handling routines |
| 55 | * |
| 56 | * 07/19/01 - Improve bad LAA reporting, strip out freemem |
| 57 | * into a separate function, its called from 3 |
| 58 | * different places now. |
| 59 | * 02/09/02 - Replaced sleep_on. |
| 60 | * 03/01/02 - Replace access to several registers from 32 bit to |
| 61 | * 16 bit. Fixes alignment errors on PPC 64 bit machines. |
| 62 | * Thanks to Al Trautman for this one. |
| 63 | * 03/10/02 - Fix BUG in arb_cmd. Bug was there all along but was |
| 64 | * silently ignored until the error checking code |
| 65 | * went into version 1.0.0 |
| 66 | * 06/04/02 - Add correct start up sequence for the cardbus adapters. |
| 67 | * Required for strict compliance with pci power mgmt specs. |
| 68 | * To Do: |
| 69 | * |
| 70 | * Wake on lan |
| 71 | * |
| 72 | * If Problems do Occur |
| 73 | * Most problems can be rectified by either closing and opening the interface |
| 74 | * (ifconfig down and up) or rmmod and insmod'ing the driver (a bit difficult |
| 75 | * if compiled into the kernel). |
| 76 | */ |
| 77 | |
| 78 | /* Change OLYMPIC_DEBUG to 1 to get verbose, and I mean really verbose, messages */ |
| 79 | |
| 80 | #define OLYMPIC_DEBUG 0 |
| 81 | |
| 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | #include <linux/module.h> |
| 84 | #include <linux/kernel.h> |
| 85 | #include <linux/errno.h> |
| 86 | #include <linux/timer.h> |
| 87 | #include <linux/in.h> |
| 88 | #include <linux/ioport.h> |
| 89 | #include <linux/string.h> |
| 90 | #include <linux/proc_fs.h> |
| 91 | #include <linux/ptrace.h> |
| 92 | #include <linux/skbuff.h> |
| 93 | #include <linux/interrupt.h> |
| 94 | #include <linux/delay.h> |
| 95 | #include <linux/netdevice.h> |
| 96 | #include <linux/trdevice.h> |
| 97 | #include <linux/stddef.h> |
| 98 | #include <linux/init.h> |
| 99 | #include <linux/pci.h> |
| 100 | #include <linux/spinlock.h> |
| 101 | #include <linux/bitops.h> |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 102 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
| 104 | #include <net/checksum.h> |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 105 | #include <net/net_namespace.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
| 107 | #include <asm/io.h> |
| 108 | #include <asm/system.h> |
| 109 | |
| 110 | #include "olympic.h" |
| 111 | |
| 112 | /* I've got to put some intelligence into the version number so that Peter and I know |
| 113 | * which version of the code somebody has got. |
| 114 | * Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author. |
| 115 | * So 0.0.1.pds = Peter, 0.0.1.mlp = Mike |
| 116 | * |
| 117 | * Official releases will only have an a.b.c version number format. |
| 118 | */ |
| 119 | |
Adrian Bunk | e28e3a6 | 2008-03-31 01:40:04 +0300 | [diff] [blame] | 120 | static char version[] = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | "Olympic.c v1.0.5 6/04/02 - Peter De Schrijver & Mike Phillips" ; |
| 122 | |
| 123 | static char *open_maj_error[] = {"No error", "Lobe Media Test", "Physical Insertion", |
| 124 | "Address Verification", "Neighbor Notification (Ring Poll)", |
| 125 | "Request Parameters","FDX Registration Request", |
| 126 | "FDX Duplicate Address Check", "Station registration Query Wait", |
| 127 | "Unknown stage"}; |
| 128 | |
| 129 | static char *open_min_error[] = {"No error", "Function Failure", "Signal Lost", "Wire Fault", |
| 130 | "Ring Speed Mismatch", "Timeout","Ring Failure","Ring Beaconing", |
| 131 | "Duplicate Node Address","Request Parameters","Remove Received", |
| 132 | "Reserved", "Reserved", "No Monitor Detected for RPL", |
| 133 | "Monitor Contention failer for RPL", "FDX Protocol Error"}; |
| 134 | |
| 135 | /* Module paramters */ |
| 136 | |
| 137 | MODULE_AUTHOR("Mike Phillips <mikep@linuxtr.net>") ; |
| 138 | MODULE_DESCRIPTION("Olympic PCI/Cardbus Chipset Driver") ; |
| 139 | |
| 140 | /* Ring Speed 0,4,16,100 |
| 141 | * 0 = Autosense |
| 142 | * 4,16 = Selected speed only, no autosense |
| 143 | * This allows the card to be the first on the ring |
| 144 | * and become the active monitor. |
| 145 | * 100 = Nothing at present, 100mbps is autodetected |
| 146 | * if FDX is turned on. May be implemented in the future to |
| 147 | * fail if 100mpbs is not detected. |
| 148 | * |
| 149 | * WARNING: Some hubs will allow you to insert |
| 150 | * at the wrong speed |
| 151 | */ |
| 152 | |
| 153 | static int ringspeed[OLYMPIC_MAX_ADAPTERS] = {0,} ; |
| 154 | module_param_array(ringspeed, int, NULL, 0); |
| 155 | |
| 156 | /* Packet buffer size */ |
| 157 | |
| 158 | static int pkt_buf_sz[OLYMPIC_MAX_ADAPTERS] = {0,} ; |
| 159 | module_param_array(pkt_buf_sz, int, NULL, 0) ; |
| 160 | |
| 161 | /* Message Level */ |
| 162 | |
| 163 | static int message_level[OLYMPIC_MAX_ADAPTERS] = {0,} ; |
| 164 | module_param_array(message_level, int, NULL, 0) ; |
| 165 | |
| 166 | /* Change network_monitor to receive mac frames through the arb channel. |
| 167 | * Will also create a /proc/net/olympic_tr%d entry, where %d is the tr |
| 168 | * device, i.e. tr0, tr1 etc. |
| 169 | * Intended to be used to create a ring-error reporting network module |
| 170 | * i.e. it will give you the source address of beaconers on the ring |
| 171 | */ |
| 172 | static int network_monitor[OLYMPIC_MAX_ADAPTERS] = {0,}; |
| 173 | module_param_array(network_monitor, int, NULL, 0); |
| 174 | |
| 175 | static struct pci_device_id olympic_pci_tbl[] = { |
| 176 | {PCI_VENDOR_ID_IBM,PCI_DEVICE_ID_IBM_TR_WAKE,PCI_ANY_ID,PCI_ANY_ID,}, |
| 177 | { } /* Terminating Entry */ |
| 178 | }; |
| 179 | MODULE_DEVICE_TABLE(pci,olympic_pci_tbl) ; |
| 180 | |
| 181 | |
| 182 | static int olympic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); |
| 183 | static int olympic_init(struct net_device *dev); |
| 184 | static int olympic_open(struct net_device *dev); |
| 185 | static int olympic_xmit(struct sk_buff *skb, struct net_device *dev); |
| 186 | static int olympic_close(struct net_device *dev); |
| 187 | static void olympic_set_rx_mode(struct net_device *dev); |
| 188 | static void olympic_freemem(struct net_device *dev) ; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 189 | static irqreturn_t olympic_interrupt(int irq, void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | static struct net_device_stats * olympic_get_stats(struct net_device *dev); |
| 191 | static int olympic_set_mac_address(struct net_device *dev, void *addr) ; |
| 192 | static void olympic_arb_cmd(struct net_device *dev); |
| 193 | static int olympic_change_mtu(struct net_device *dev, int mtu); |
| 194 | static void olympic_srb_bh(struct net_device *dev) ; |
| 195 | static void olympic_asb_bh(struct net_device *dev) ; |
| 196 | static int olympic_proc_info(char *buffer, char **start, off_t offset, int length, int *eof, void *data) ; |
| 197 | |
| 198 | static int __devinit olympic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 199 | { |
| 200 | struct net_device *dev ; |
| 201 | struct olympic_private *olympic_priv; |
| 202 | static int card_no = -1 ; |
| 203 | int i ; |
| 204 | |
| 205 | card_no++ ; |
| 206 | |
| 207 | if ((i = pci_enable_device(pdev))) { |
| 208 | return i ; |
| 209 | } |
| 210 | |
| 211 | pci_set_master(pdev); |
| 212 | |
| 213 | if ((i = pci_request_regions(pdev,"olympic"))) { |
| 214 | goto op_disable_dev; |
| 215 | } |
| 216 | |
| 217 | dev = alloc_trdev(sizeof(struct olympic_private)) ; |
| 218 | if (!dev) { |
| 219 | i = -ENOMEM; |
Eric Sesterhenn | 6d56ab9 | 2006-06-21 16:17:17 +0200 | [diff] [blame] | 220 | goto op_release_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | } |
| 222 | |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 223 | olympic_priv = netdev_priv(dev) ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | spin_lock_init(&olympic_priv->olympic_lock) ; |
| 226 | |
| 227 | init_waitqueue_head(&olympic_priv->srb_wait); |
| 228 | init_waitqueue_head(&olympic_priv->trb_wait); |
| 229 | #if OLYMPIC_DEBUG |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 230 | printk(KERN_INFO "pci_device: %p, dev:%p, dev->priv: %p\n", pdev, dev, netdev_priv(dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | #endif |
| 232 | dev->irq=pdev->irq; |
| 233 | dev->base_addr=pci_resource_start(pdev, 0); |
| 234 | olympic_priv->olympic_card_name = pci_name(pdev); |
| 235 | olympic_priv->pdev = pdev; |
| 236 | olympic_priv->olympic_mmio = ioremap(pci_resource_start(pdev,1),256); |
| 237 | olympic_priv->olympic_lap = ioremap(pci_resource_start(pdev,2),2048); |
| 238 | if (!olympic_priv->olympic_mmio || !olympic_priv->olympic_lap) { |
| 239 | goto op_free_iomap; |
| 240 | } |
| 241 | |
| 242 | if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000) ) |
| 243 | olympic_priv->pkt_buf_sz = PKT_BUF_SZ ; |
| 244 | else |
| 245 | olympic_priv->pkt_buf_sz = pkt_buf_sz[card_no] ; |
| 246 | |
| 247 | dev->mtu = olympic_priv->pkt_buf_sz - TR_HLEN ; |
| 248 | olympic_priv->olympic_ring_speed = ringspeed[card_no] ; |
| 249 | olympic_priv->olympic_message_level = message_level[card_no] ; |
| 250 | olympic_priv->olympic_network_monitor = network_monitor[card_no]; |
| 251 | |
| 252 | if ((i = olympic_init(dev))) { |
| 253 | goto op_free_iomap; |
| 254 | } |
| 255 | |
| 256 | dev->open=&olympic_open; |
| 257 | dev->hard_start_xmit=&olympic_xmit; |
| 258 | dev->change_mtu=&olympic_change_mtu; |
| 259 | dev->stop=&olympic_close; |
| 260 | dev->do_ioctl=NULL; |
| 261 | dev->set_multicast_list=&olympic_set_rx_mode; |
| 262 | dev->get_stats=&olympic_get_stats ; |
| 263 | dev->set_mac_address=&olympic_set_mac_address ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 265 | |
| 266 | pci_set_drvdata(pdev,dev) ; |
| 267 | register_netdev(dev) ; |
| 268 | printk("Olympic: %s registered as: %s\n",olympic_priv->olympic_card_name,dev->name); |
| 269 | if (olympic_priv->olympic_network_monitor) { /* Must go after register_netdev as we need the device name */ |
| 270 | char proc_name[20] ; |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 271 | strcpy(proc_name,"olympic_") ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | strcat(proc_name,dev->name) ; |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 273 | create_proc_read_entry(proc_name,0,init_net.proc_net,olympic_proc_info,(void *)dev) ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | printk("Olympic: Network Monitor information: /proc/%s\n",proc_name); |
| 275 | } |
| 276 | return 0 ; |
| 277 | |
| 278 | op_free_iomap: |
| 279 | if (olympic_priv->olympic_mmio) |
| 280 | iounmap(olympic_priv->olympic_mmio); |
| 281 | if (olympic_priv->olympic_lap) |
| 282 | iounmap(olympic_priv->olympic_lap); |
| 283 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | free_netdev(dev); |
Eric Sesterhenn | 6d56ab9 | 2006-06-21 16:17:17 +0200 | [diff] [blame] | 285 | op_release_dev: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | pci_release_regions(pdev); |
| 287 | |
| 288 | op_disable_dev: |
| 289 | pci_disable_device(pdev); |
| 290 | return i; |
| 291 | } |
| 292 | |
Adrian Bunk | e28e3a6 | 2008-03-31 01:40:04 +0300 | [diff] [blame] | 293 | static int olympic_init(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | { |
| 295 | struct olympic_private *olympic_priv; |
| 296 | u8 __iomem *olympic_mmio, *init_srb,*adapter_addr; |
| 297 | unsigned long t; |
| 298 | unsigned int uaa_addr; |
| 299 | |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 300 | olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | olympic_mmio=olympic_priv->olympic_mmio; |
| 302 | |
| 303 | printk("%s \n", version); |
| 304 | printk("%s. I/O at %hx, MMIO at %p, LAP at %p, using irq %d\n", olympic_priv->olympic_card_name, (unsigned int) dev->base_addr,olympic_priv->olympic_mmio, olympic_priv->olympic_lap, dev->irq); |
| 305 | |
| 306 | writel(readl(olympic_mmio+BCTL) | BCTL_SOFTRESET,olympic_mmio+BCTL); |
| 307 | t=jiffies; |
| 308 | while((readl(olympic_mmio+BCTL)) & BCTL_SOFTRESET) { |
| 309 | schedule(); |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 310 | if(time_after(jiffies, t + 40*HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | printk(KERN_ERR "IBM PCI tokenring card not responding.\n"); |
| 312 | return -ENODEV; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | |
| 317 | /* Needed for cardbus */ |
| 318 | if(!(readl(olympic_mmio+BCTL) & BCTL_MODE_INDICATOR)) { |
| 319 | writel(readl(olympic_priv->olympic_mmio+FERMASK)|FERMASK_INT_BIT, olympic_mmio+FERMASK); |
| 320 | } |
| 321 | |
| 322 | #if OLYMPIC_DEBUG |
| 323 | printk("BCTL: %x\n",readl(olympic_mmio+BCTL)); |
| 324 | printk("GPR: %x\n",readw(olympic_mmio+GPR)); |
| 325 | printk("SISRMASK: %x\n",readl(olympic_mmio+SISR_MASK)); |
| 326 | #endif |
| 327 | /* Aaaahhh, You have got to be real careful setting GPR, the card |
| 328 | holds the previous values from flash memory, including autosense |
| 329 | and ring speed */ |
| 330 | |
| 331 | writel(readl(olympic_mmio+BCTL)|BCTL_MIMREB,olympic_mmio+BCTL); |
| 332 | |
| 333 | if (olympic_priv->olympic_ring_speed == 0) { /* Autosense */ |
| 334 | writew(readw(olympic_mmio+GPR)|GPR_AUTOSENSE,olympic_mmio+GPR); |
| 335 | if (olympic_priv->olympic_message_level) |
| 336 | printk(KERN_INFO "%s: Ringspeed autosense mode on\n",olympic_priv->olympic_card_name); |
| 337 | } else if (olympic_priv->olympic_ring_speed == 16) { |
| 338 | if (olympic_priv->olympic_message_level) |
| 339 | printk(KERN_INFO "%s: Trying to open at 16 Mbps as requested\n", olympic_priv->olympic_card_name); |
| 340 | writew(GPR_16MBPS, olympic_mmio+GPR); |
| 341 | } else if (olympic_priv->olympic_ring_speed == 4) { |
| 342 | if (olympic_priv->olympic_message_level) |
| 343 | printk(KERN_INFO "%s: Trying to open at 4 Mbps as requested\n", olympic_priv->olympic_card_name) ; |
| 344 | writew(0, olympic_mmio+GPR); |
| 345 | } |
| 346 | |
| 347 | writew(readw(olympic_mmio+GPR)|GPR_NEPTUNE_BF,olympic_mmio+GPR); |
| 348 | |
| 349 | #if OLYMPIC_DEBUG |
| 350 | printk("GPR = %x\n",readw(olympic_mmio + GPR) ) ; |
| 351 | #endif |
| 352 | /* Solo has been paused to meet the Cardbus power |
| 353 | * specs if the adapter is cardbus. Check to |
| 354 | * see its been paused and then restart solo. The |
| 355 | * adapter should set the pause bit within 1 second. |
| 356 | */ |
| 357 | |
| 358 | if(!(readl(olympic_mmio+BCTL) & BCTL_MODE_INDICATOR)) { |
| 359 | t=jiffies; |
Al Viro | b710b43 | 2007-12-16 20:53:36 +0000 | [diff] [blame] | 360 | while (!(readl(olympic_mmio+CLKCTL) & CLKCTL_PAUSE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | schedule() ; |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 362 | if(time_after(jiffies, t + 2*HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | printk(KERN_ERR "IBM Cardbus tokenring adapter not responsing.\n") ; |
| 364 | return -ENODEV; |
| 365 | } |
| 366 | } |
| 367 | writel(readl(olympic_mmio+CLKCTL) & ~CLKCTL_PAUSE, olympic_mmio+CLKCTL) ; |
| 368 | } |
| 369 | |
| 370 | /* start solo init */ |
| 371 | writel((1<<15),olympic_mmio+SISR_MASK_SUM); |
| 372 | |
| 373 | t=jiffies; |
| 374 | while(!((readl(olympic_mmio+SISR_RR)) & SISR_SRB_REPLY)) { |
| 375 | schedule(); |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 376 | if(time_after(jiffies, t + 15*HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | printk(KERN_ERR "IBM PCI tokenring card not responding.\n"); |
| 378 | return -ENODEV; |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | writel(readw(olympic_mmio+LAPWWO),olympic_mmio+LAPA); |
| 383 | |
| 384 | #if OLYMPIC_DEBUG |
| 385 | printk("LAPWWO: %x, LAPA: %x\n",readl(olympic_mmio+LAPWWO), readl(olympic_mmio+LAPA)); |
| 386 | #endif |
| 387 | |
| 388 | init_srb=olympic_priv->olympic_lap + ((readw(olympic_mmio+LAPWWO)) & (~0xf800)); |
| 389 | |
| 390 | #if OLYMPIC_DEBUG |
| 391 | { |
| 392 | int i; |
| 393 | printk("init_srb(%p): ",init_srb); |
| 394 | for(i=0;i<20;i++) |
| 395 | printk("%x ",readb(init_srb+i)); |
| 396 | printk("\n"); |
| 397 | } |
| 398 | #endif |
| 399 | if(readw(init_srb+6)) { |
| 400 | printk(KERN_INFO "tokenring card initialization failed. errorcode : %x\n",readw(init_srb+6)); |
| 401 | return -ENODEV; |
| 402 | } |
| 403 | |
| 404 | if (olympic_priv->olympic_message_level) { |
| 405 | if ( readb(init_srb +2) & 0x40) { |
| 406 | printk(KERN_INFO "Olympic: Adapter is FDX capable.\n") ; |
| 407 | } else { |
| 408 | printk(KERN_INFO "Olympic: Adapter cannot do FDX.\n"); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | uaa_addr=swab16(readw(init_srb+8)); |
| 413 | |
| 414 | #if OLYMPIC_DEBUG |
| 415 | printk("UAA resides at %x\n",uaa_addr); |
| 416 | #endif |
| 417 | |
| 418 | writel(uaa_addr,olympic_mmio+LAPA); |
| 419 | adapter_addr=olympic_priv->olympic_lap + (uaa_addr & (~0xf800)); |
| 420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | memcpy_fromio(&dev->dev_addr[0], adapter_addr,6); |
| 422 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 423 | #if OLYMPIC_DEBUG |
| 424 | { |
| 425 | DECLARE_MAC_BUF(mac); |
| 426 | printk("adapter address: %s\n", print_mac(mac, dev->dev_addr)); |
| 427 | } |
| 428 | #endif |
| 429 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | olympic_priv->olympic_addr_table_addr = swab16(readw(init_srb + 12)); |
| 431 | olympic_priv->olympic_parms_addr = swab16(readw(init_srb + 14)); |
| 432 | |
| 433 | return 0; |
| 434 | |
| 435 | } |
| 436 | |
Adrian Bunk | e28e3a6 | 2008-03-31 01:40:04 +0300 | [diff] [blame] | 437 | static int olympic_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 439 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio,*init_srb; |
| 441 | unsigned long flags, t; |
| 442 | int i, open_finished = 1 ; |
| 443 | u8 resp, err; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 444 | DECLARE_MAC_BUF(mac); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | |
| 446 | DECLARE_WAITQUEUE(wait,current) ; |
| 447 | |
| 448 | olympic_init(dev); |
| 449 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 450 | if(request_irq(dev->irq, &olympic_interrupt, IRQF_SHARED , "olympic", dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | return -EAGAIN; |
| 452 | } |
| 453 | |
| 454 | #if OLYMPIC_DEBUG |
| 455 | printk("BMCTL: %x\n",readl(olympic_mmio+BMCTL_SUM)); |
| 456 | printk("pending ints: %x\n",readl(olympic_mmio+SISR_RR)); |
| 457 | #endif |
| 458 | |
| 459 | writel(SISR_MI,olympic_mmio+SISR_MASK_SUM); |
| 460 | |
| 461 | writel(SISR_MI | SISR_SRB_REPLY, olympic_mmio+SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */ |
| 462 | |
| 463 | writel(LISR_LIE,olympic_mmio+LISR); /* more ints later */ |
| 464 | |
| 465 | /* adapter is closed, so SRB is pointed to by LAPWWO */ |
| 466 | |
| 467 | writel(readw(olympic_mmio+LAPWWO),olympic_mmio+LAPA); |
| 468 | init_srb=olympic_priv->olympic_lap + ((readw(olympic_mmio+LAPWWO)) & (~0xf800)); |
| 469 | |
| 470 | #if OLYMPIC_DEBUG |
| 471 | printk("LAPWWO: %x, LAPA: %x\n",readw(olympic_mmio+LAPWWO), readl(olympic_mmio+LAPA)); |
| 472 | printk("SISR Mask = %04x\n", readl(olympic_mmio+SISR_MASK)); |
| 473 | printk("Before the open command \n"); |
| 474 | #endif |
| 475 | do { |
| 476 | memset_io(init_srb,0,SRB_COMMAND_SIZE); |
| 477 | |
| 478 | writeb(SRB_OPEN_ADAPTER,init_srb) ; /* open */ |
| 479 | writeb(OLYMPIC_CLEAR_RET_CODE,init_srb+2); |
| 480 | |
| 481 | /* If Network Monitor, instruct card to copy MAC frames through the ARB */ |
| 482 | if (olympic_priv->olympic_network_monitor) |
| 483 | writew(swab16(OPEN_ADAPTER_ENABLE_FDX | OPEN_ADAPTER_PASS_ADC_MAC | OPEN_ADAPTER_PASS_ATT_MAC | OPEN_ADAPTER_PASS_BEACON), init_srb+8); |
| 484 | else |
| 485 | writew(swab16(OPEN_ADAPTER_ENABLE_FDX), init_srb+8); |
| 486 | |
| 487 | /* Test OR of first 3 bytes as its totally possible for |
| 488 | * someone to set the first 2 bytes to be zero, although this |
| 489 | * is an error, the first byte must have bit 6 set to 1 */ |
| 490 | |
| 491 | if (olympic_priv->olympic_laa[0] | olympic_priv->olympic_laa[1] | olympic_priv->olympic_laa[2]) { |
| 492 | writeb(olympic_priv->olympic_laa[0],init_srb+12); |
| 493 | writeb(olympic_priv->olympic_laa[1],init_srb+13); |
| 494 | writeb(olympic_priv->olympic_laa[2],init_srb+14); |
| 495 | writeb(olympic_priv->olympic_laa[3],init_srb+15); |
| 496 | writeb(olympic_priv->olympic_laa[4],init_srb+16); |
| 497 | writeb(olympic_priv->olympic_laa[5],init_srb+17); |
| 498 | memcpy(dev->dev_addr,olympic_priv->olympic_laa,dev->addr_len) ; |
| 499 | } |
| 500 | writeb(1,init_srb+30); |
| 501 | |
| 502 | spin_lock_irqsave(&olympic_priv->olympic_lock,flags); |
| 503 | olympic_priv->srb_queued=1; |
| 504 | |
| 505 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 506 | spin_unlock_irqrestore(&olympic_priv->olympic_lock,flags); |
| 507 | |
| 508 | t = jiffies ; |
| 509 | |
| 510 | add_wait_queue(&olympic_priv->srb_wait,&wait) ; |
| 511 | set_current_state(TASK_INTERRUPTIBLE) ; |
| 512 | |
| 513 | while(olympic_priv->srb_queued) { |
| 514 | schedule() ; |
| 515 | if(signal_pending(current)) { |
| 516 | printk(KERN_WARNING "%s: Signal received in open.\n", |
| 517 | dev->name); |
| 518 | printk(KERN_WARNING "SISR=%x LISR=%x\n", |
| 519 | readl(olympic_mmio+SISR), |
| 520 | readl(olympic_mmio+LISR)); |
| 521 | olympic_priv->srb_queued=0; |
| 522 | break; |
| 523 | } |
Marcelo Feitoza Parisi | ff5688a | 2006-01-09 18:37:15 -0800 | [diff] [blame] | 524 | if (time_after(jiffies, t + 10*HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | printk(KERN_WARNING "%s: SRB timed out. \n",dev->name) ; |
| 526 | olympic_priv->srb_queued=0; |
| 527 | break ; |
| 528 | } |
| 529 | set_current_state(TASK_INTERRUPTIBLE) ; |
| 530 | } |
| 531 | remove_wait_queue(&olympic_priv->srb_wait,&wait) ; |
| 532 | set_current_state(TASK_RUNNING) ; |
| 533 | olympic_priv->srb_queued = 0 ; |
| 534 | #if OLYMPIC_DEBUG |
| 535 | printk("init_srb(%p): ",init_srb); |
| 536 | for(i=0;i<20;i++) |
| 537 | printk("%02x ",readb(init_srb+i)); |
| 538 | printk("\n"); |
| 539 | #endif |
| 540 | |
| 541 | /* If we get the same return response as we set, the interrupt wasn't raised and the open |
| 542 | * timed out. |
| 543 | */ |
| 544 | |
| 545 | switch (resp = readb(init_srb+2)) { |
| 546 | case OLYMPIC_CLEAR_RET_CODE: |
| 547 | printk(KERN_WARNING "%s: Adapter Open time out or error.\n", dev->name) ; |
| 548 | goto out; |
| 549 | case 0: |
| 550 | open_finished = 1; |
| 551 | break; |
| 552 | case 0x07: |
| 553 | if (!olympic_priv->olympic_ring_speed && open_finished) { /* Autosense , first time around */ |
| 554 | printk(KERN_WARNING "%s: Retrying at different ring speed \n", dev->name); |
| 555 | open_finished = 0 ; |
| 556 | continue; |
| 557 | } |
| 558 | |
| 559 | err = readb(init_srb+7); |
| 560 | |
| 561 | if (!olympic_priv->olympic_ring_speed && ((err & 0x0f) == 0x0d)) { |
| 562 | printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n",dev->name); |
| 563 | printk(KERN_WARNING "%s: Please try again with a specified ring speed \n",dev->name); |
| 564 | } else { |
| 565 | printk(KERN_WARNING "%s: %s - %s\n", dev->name, |
| 566 | open_maj_error[(err & 0xf0) >> 4], |
| 567 | open_min_error[(err & 0x0f)]); |
| 568 | } |
| 569 | goto out; |
| 570 | |
| 571 | case 0x32: |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 572 | printk(KERN_WARNING "%s: Invalid LAA: %s\n", |
| 573 | dev->name, print_mac(mac, olympic_priv->olympic_laa)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | goto out; |
| 575 | |
| 576 | default: |
| 577 | printk(KERN_WARNING "%s: Bad OPEN response: %x\n", dev->name, resp); |
| 578 | goto out; |
| 579 | |
| 580 | } |
| 581 | } while (!(open_finished)) ; /* Will only loop if ring speed mismatch re-open attempted && autosense is on */ |
| 582 | |
| 583 | if (readb(init_srb+18) & (1<<3)) |
| 584 | if (olympic_priv->olympic_message_level) |
| 585 | printk(KERN_INFO "%s: Opened in FDX Mode\n",dev->name); |
| 586 | |
| 587 | if (readb(init_srb+18) & (1<<1)) |
| 588 | olympic_priv->olympic_ring_speed = 100 ; |
| 589 | else if (readb(init_srb+18) & 1) |
| 590 | olympic_priv->olympic_ring_speed = 16 ; |
| 591 | else |
| 592 | olympic_priv->olympic_ring_speed = 4 ; |
| 593 | |
| 594 | if (olympic_priv->olympic_message_level) |
| 595 | printk(KERN_INFO "%s: Opened in %d Mbps mode\n",dev->name, olympic_priv->olympic_ring_speed); |
| 596 | |
| 597 | olympic_priv->asb = swab16(readw(init_srb+8)); |
| 598 | olympic_priv->srb = swab16(readw(init_srb+10)); |
| 599 | olympic_priv->arb = swab16(readw(init_srb+12)); |
| 600 | olympic_priv->trb = swab16(readw(init_srb+16)); |
| 601 | |
| 602 | olympic_priv->olympic_receive_options = 0x01 ; |
| 603 | olympic_priv->olympic_copy_all_options = 0 ; |
| 604 | |
| 605 | /* setup rx ring */ |
| 606 | |
| 607 | writel((3<<16),olympic_mmio+BMCTL_RWM); /* Ensure end of frame generated interrupts */ |
| 608 | |
| 609 | writel(BMCTL_RX_DIS|3,olympic_mmio+BMCTL_RWM); /* Yes, this the enables RX channel */ |
| 610 | |
| 611 | for(i=0;i<OLYMPIC_RX_RING_SIZE;i++) { |
| 612 | |
| 613 | struct sk_buff *skb; |
| 614 | |
| 615 | skb=dev_alloc_skb(olympic_priv->pkt_buf_sz); |
| 616 | if(skb == NULL) |
| 617 | break; |
| 618 | |
| 619 | skb->dev = dev; |
| 620 | |
| 621 | olympic_priv->olympic_rx_ring[i].buffer = cpu_to_le32(pci_map_single(olympic_priv->pdev, |
| 622 | skb->data,olympic_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE)) ; |
| 623 | olympic_priv->olympic_rx_ring[i].res_length = cpu_to_le32(olympic_priv->pkt_buf_sz); |
| 624 | olympic_priv->rx_ring_skb[i]=skb; |
| 625 | } |
| 626 | |
| 627 | if (i==0) { |
| 628 | printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n",dev->name); |
| 629 | goto out; |
| 630 | } |
| 631 | |
| 632 | olympic_priv->rx_ring_dma_addr = pci_map_single(olympic_priv->pdev,olympic_priv->olympic_rx_ring, |
| 633 | sizeof(struct olympic_rx_desc) * OLYMPIC_RX_RING_SIZE, PCI_DMA_TODEVICE); |
| 634 | writel(olympic_priv->rx_ring_dma_addr, olympic_mmio+RXDESCQ); |
| 635 | writel(olympic_priv->rx_ring_dma_addr, olympic_mmio+RXCDA); |
| 636 | writew(i, olympic_mmio+RXDESCQCNT); |
| 637 | |
| 638 | olympic_priv->rx_status_ring_dma_addr = pci_map_single(olympic_priv->pdev, olympic_priv->olympic_rx_status_ring, |
| 639 | sizeof(struct olympic_rx_status) * OLYMPIC_RX_RING_SIZE, PCI_DMA_FROMDEVICE); |
| 640 | writel(olympic_priv->rx_status_ring_dma_addr, olympic_mmio+RXSTATQ); |
| 641 | writel(olympic_priv->rx_status_ring_dma_addr, olympic_mmio+RXCSA); |
| 642 | |
| 643 | olympic_priv->rx_ring_last_received = OLYMPIC_RX_RING_SIZE - 1; /* last processed rx status */ |
| 644 | olympic_priv->rx_status_last_received = OLYMPIC_RX_RING_SIZE - 1; |
| 645 | |
| 646 | writew(i, olympic_mmio+RXSTATQCNT); |
| 647 | |
| 648 | #if OLYMPIC_DEBUG |
| 649 | printk("# of rx buffers: %d, RXENQ: %x\n",i, readw(olympic_mmio+RXENQ)); |
| 650 | printk("RXCSA: %x, rx_status_ring[0]: %p\n",readl(olympic_mmio+RXCSA),&olympic_priv->olympic_rx_status_ring[0]); |
| 651 | printk(" stat_ring[1]: %p, stat_ring[2]: %p, stat_ring[3]: %p\n", &(olympic_priv->olympic_rx_status_ring[1]), &(olympic_priv->olympic_rx_status_ring[2]), &(olympic_priv->olympic_rx_status_ring[3]) ); |
| 652 | printk(" stat_ring[4]: %p, stat_ring[5]: %p, stat_ring[6]: %p\n", &(olympic_priv->olympic_rx_status_ring[4]), &(olympic_priv->olympic_rx_status_ring[5]), &(olympic_priv->olympic_rx_status_ring[6]) ); |
| 653 | printk(" stat_ring[7]: %p\n", &(olympic_priv->olympic_rx_status_ring[7]) ); |
| 654 | |
| 655 | printk("RXCDA: %x, rx_ring[0]: %p\n",readl(olympic_mmio+RXCDA),&olympic_priv->olympic_rx_ring[0]); |
| 656 | printk("Rx_ring_dma_addr = %08x, rx_status_dma_addr = %08x\n", |
| 657 | olympic_priv->rx_ring_dma_addr,olympic_priv->rx_status_ring_dma_addr) ; |
| 658 | #endif |
| 659 | |
| 660 | writew((((readw(olympic_mmio+RXENQ)) & 0x8000) ^ 0x8000) | i,olympic_mmio+RXENQ); |
| 661 | |
| 662 | #if OLYMPIC_DEBUG |
| 663 | printk("# of rx buffers: %d, RXENQ: %x\n",i, readw(olympic_mmio+RXENQ)); |
| 664 | printk("RXCSA: %x, rx_ring[0]: %p\n",readl(olympic_mmio+RXCSA),&olympic_priv->olympic_rx_status_ring[0]); |
| 665 | printk("RXCDA: %x, rx_ring[0]: %p\n",readl(olympic_mmio+RXCDA),&olympic_priv->olympic_rx_ring[0]); |
| 666 | #endif |
| 667 | |
| 668 | writel(SISR_RX_STATUS | SISR_RX_NOBUF,olympic_mmio+SISR_MASK_SUM); |
| 669 | |
| 670 | /* setup tx ring */ |
| 671 | |
| 672 | writel(BMCTL_TX1_DIS,olympic_mmio+BMCTL_RWM); /* Yes, this enables TX channel 1 */ |
| 673 | for(i=0;i<OLYMPIC_TX_RING_SIZE;i++) |
Al Viro | b710b43 | 2007-12-16 20:53:36 +0000 | [diff] [blame] | 674 | olympic_priv->olympic_tx_ring[i].buffer=cpu_to_le32(0xdeadbeef); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
| 676 | olympic_priv->free_tx_ring_entries=OLYMPIC_TX_RING_SIZE; |
| 677 | olympic_priv->tx_ring_dma_addr = pci_map_single(olympic_priv->pdev,olympic_priv->olympic_tx_ring, |
| 678 | sizeof(struct olympic_tx_desc) * OLYMPIC_TX_RING_SIZE,PCI_DMA_TODEVICE) ; |
| 679 | writel(olympic_priv->tx_ring_dma_addr, olympic_mmio+TXDESCQ_1); |
| 680 | writel(olympic_priv->tx_ring_dma_addr, olympic_mmio+TXCDA_1); |
| 681 | writew(OLYMPIC_TX_RING_SIZE, olympic_mmio+TXDESCQCNT_1); |
| 682 | |
| 683 | olympic_priv->tx_status_ring_dma_addr = pci_map_single(olympic_priv->pdev, olympic_priv->olympic_tx_status_ring, |
| 684 | sizeof(struct olympic_tx_status) * OLYMPIC_TX_RING_SIZE, PCI_DMA_FROMDEVICE); |
| 685 | writel(olympic_priv->tx_status_ring_dma_addr,olympic_mmio+TXSTATQ_1); |
| 686 | writel(olympic_priv->tx_status_ring_dma_addr,olympic_mmio+TXCSA_1); |
| 687 | writew(OLYMPIC_TX_RING_SIZE,olympic_mmio+TXSTATQCNT_1); |
| 688 | |
| 689 | olympic_priv->tx_ring_free=0; /* next entry in tx ring to use */ |
| 690 | olympic_priv->tx_ring_last_status=OLYMPIC_TX_RING_SIZE-1; /* last processed tx status */ |
| 691 | |
| 692 | writel(0xffffffff, olympic_mmio+EISR_RWM) ; /* clean the eisr */ |
| 693 | writel(0,olympic_mmio+EISR) ; |
| 694 | writel(EISR_MASK_OPTIONS,olympic_mmio+EISR_MASK) ; /* enables most of the TX error interrupts */ |
| 695 | writel(SISR_TX1_EOF | SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE | SISR_ERR,olympic_mmio+SISR_MASK_SUM); |
| 696 | |
| 697 | #if OLYMPIC_DEBUG |
| 698 | printk("BMCTL: %x\n",readl(olympic_mmio+BMCTL_SUM)); |
| 699 | printk("SISR MASK: %x\n",readl(olympic_mmio+SISR_MASK)); |
| 700 | #endif |
| 701 | |
| 702 | if (olympic_priv->olympic_network_monitor) { |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 703 | u8 __iomem *oat; |
| 704 | u8 __iomem *opt; |
| 705 | int i; |
| 706 | u8 addr[6]; |
| 707 | DECLARE_MAC_BUF(mac); |
| 708 | oat = (olympic_priv->olympic_lap + olympic_priv->olympic_addr_table_addr); |
| 709 | opt = (olympic_priv->olympic_lap + olympic_priv->olympic_parms_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 711 | for (i = 0; i < 6; i++) |
| 712 | addr[i] = readb(oat+offsetof(struct olympic_adapter_addr_table,node_addr)+i); |
| 713 | printk("%s: Node Address: %s\n",dev->name, print_mac(mac, addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | printk("%s: Functional Address: %02x:%02x:%02x:%02x\n",dev->name, |
| 715 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)), |
| 716 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+1), |
| 717 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+2), |
| 718 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+3)); |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 719 | |
| 720 | for (i = 0; i < 6; i++) |
| 721 | addr[i] = readb(opt+offsetof(struct olympic_parameters_table, up_node_addr)+i); |
| 722 | printk("%s: NAUN Address: %s\n",dev->name, print_mac(mac, addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | netif_start_queue(dev); |
| 726 | return 0; |
| 727 | |
| 728 | out: |
| 729 | free_irq(dev->irq, dev); |
| 730 | return -EIO; |
| 731 | } |
| 732 | |
| 733 | /* |
| 734 | * When we enter the rx routine we do not know how many frames have been |
| 735 | * queued on the rx channel. Therefore we start at the next rx status |
| 736 | * position and travel around the receive ring until we have completed |
| 737 | * all the frames. |
| 738 | * |
| 739 | * This means that we may process the frame before we receive the end |
| 740 | * of frame interrupt. This is why we always test the status instead |
| 741 | * of blindly processing the next frame. |
| 742 | * |
| 743 | * We also remove the last 4 bytes from the packet as well, these are |
| 744 | * just token ring trailer info and upset protocols that don't check |
| 745 | * their own length, i.e. SNA. |
| 746 | * |
| 747 | */ |
| 748 | static void olympic_rx(struct net_device *dev) |
| 749 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 750 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio; |
| 752 | struct olympic_rx_status *rx_status; |
| 753 | struct olympic_rx_desc *rx_desc ; |
| 754 | int rx_ring_last_received,length, buffer_cnt, cpy_length, frag_len; |
| 755 | struct sk_buff *skb, *skb2; |
| 756 | int i; |
| 757 | |
| 758 | rx_status=&(olympic_priv->olympic_rx_status_ring[(olympic_priv->rx_status_last_received + 1) & (OLYMPIC_RX_RING_SIZE - 1)]) ; |
| 759 | |
| 760 | while (rx_status->status_buffercnt) { |
| 761 | u32 l_status_buffercnt; |
| 762 | |
| 763 | olympic_priv->rx_status_last_received++ ; |
| 764 | olympic_priv->rx_status_last_received &= (OLYMPIC_RX_RING_SIZE -1); |
| 765 | #if OLYMPIC_DEBUG |
| 766 | printk("rx status: %x rx len: %x \n", le32_to_cpu(rx_status->status_buffercnt), le32_to_cpu(rx_status->fragmentcnt_framelen)); |
| 767 | #endif |
| 768 | length = le32_to_cpu(rx_status->fragmentcnt_framelen) & 0xffff; |
| 769 | buffer_cnt = le32_to_cpu(rx_status->status_buffercnt) & 0xffff; |
| 770 | i = buffer_cnt ; /* Need buffer_cnt later for rxenq update */ |
| 771 | frag_len = le32_to_cpu(rx_status->fragmentcnt_framelen) >> 16; |
| 772 | |
| 773 | #if OLYMPIC_DEBUG |
| 774 | printk("length: %x, frag_len: %x, buffer_cnt: %x\n", length, frag_len, buffer_cnt); |
| 775 | #endif |
| 776 | l_status_buffercnt = le32_to_cpu(rx_status->status_buffercnt); |
| 777 | if(l_status_buffercnt & 0xC0000000) { |
| 778 | if (l_status_buffercnt & 0x3B000000) { |
| 779 | if (olympic_priv->olympic_message_level) { |
| 780 | if (l_status_buffercnt & (1<<29)) /* Rx Frame Truncated */ |
| 781 | printk(KERN_WARNING "%s: Rx Frame Truncated \n",dev->name); |
| 782 | if (l_status_buffercnt & (1<<28)) /*Rx receive overrun */ |
| 783 | printk(KERN_WARNING "%s: Rx Frame Receive overrun \n",dev->name); |
| 784 | if (l_status_buffercnt & (1<<27)) /* No receive buffers */ |
| 785 | printk(KERN_WARNING "%s: No receive buffers \n",dev->name); |
| 786 | if (l_status_buffercnt & (1<<25)) /* Receive frame error detect */ |
| 787 | printk(KERN_WARNING "%s: Receive frame error detect \n",dev->name); |
| 788 | if (l_status_buffercnt & (1<<24)) /* Received Error Detect */ |
| 789 | printk(KERN_WARNING "%s: Received Error Detect \n",dev->name); |
| 790 | } |
| 791 | olympic_priv->rx_ring_last_received += i ; |
| 792 | olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE -1) ; |
| 793 | olympic_priv->olympic_stats.rx_errors++; |
| 794 | } else { |
| 795 | |
| 796 | if (buffer_cnt == 1) { |
| 797 | skb = dev_alloc_skb(max_t(int, olympic_priv->pkt_buf_sz,length)) ; |
| 798 | } else { |
| 799 | skb = dev_alloc_skb(length) ; |
| 800 | } |
| 801 | |
| 802 | if (skb == NULL) { |
| 803 | printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n",dev->name) ; |
| 804 | olympic_priv->olympic_stats.rx_dropped++ ; |
| 805 | /* Update counters even though we don't transfer the frame */ |
| 806 | olympic_priv->rx_ring_last_received += i ; |
| 807 | olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE -1) ; |
| 808 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | /* Optimise based upon number of buffers used. |
| 810 | If only one buffer is used we can simply swap the buffers around. |
| 811 | If more than one then we must use the new buffer and copy the information |
| 812 | first. Ideally all frames would be in a single buffer, this can be tuned by |
| 813 | altering the buffer size. If the length of the packet is less than |
| 814 | 1500 bytes we're going to copy it over anyway to stop packets getting |
| 815 | dropped from sockets with buffers smaller than our pkt_buf_sz. */ |
| 816 | |
| 817 | if (buffer_cnt==1) { |
| 818 | olympic_priv->rx_ring_last_received++ ; |
| 819 | olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE -1); |
| 820 | rx_ring_last_received = olympic_priv->rx_ring_last_received ; |
| 821 | if (length > 1500) { |
| 822 | skb2=olympic_priv->rx_ring_skb[rx_ring_last_received] ; |
| 823 | /* unmap buffer */ |
| 824 | pci_unmap_single(olympic_priv->pdev, |
| 825 | le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer), |
| 826 | olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ; |
| 827 | skb_put(skb2,length-4); |
| 828 | skb2->protocol = tr_type_trans(skb2,dev); |
| 829 | olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer = |
| 830 | cpu_to_le32(pci_map_single(olympic_priv->pdev, skb->data, |
| 831 | olympic_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE)); |
| 832 | olympic_priv->olympic_rx_ring[rx_ring_last_received].res_length = |
| 833 | cpu_to_le32(olympic_priv->pkt_buf_sz); |
| 834 | olympic_priv->rx_ring_skb[rx_ring_last_received] = skb ; |
| 835 | netif_rx(skb2) ; |
| 836 | } else { |
| 837 | pci_dma_sync_single_for_cpu(olympic_priv->pdev, |
| 838 | le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer), |
| 839 | olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ; |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 840 | skb_copy_from_linear_data(olympic_priv->rx_ring_skb[rx_ring_last_received], |
| 841 | skb_put(skb,length - 4), |
| 842 | length - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | pci_dma_sync_single_for_device(olympic_priv->pdev, |
| 844 | le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer), |
| 845 | olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ; |
| 846 | skb->protocol = tr_type_trans(skb,dev) ; |
| 847 | netif_rx(skb) ; |
| 848 | } |
| 849 | } else { |
| 850 | do { /* Walk the buffers */ |
| 851 | olympic_priv->rx_ring_last_received++ ; |
| 852 | olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE -1); |
| 853 | rx_ring_last_received = olympic_priv->rx_ring_last_received ; |
| 854 | pci_dma_sync_single_for_cpu(olympic_priv->pdev, |
| 855 | le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer), |
| 856 | olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ; |
| 857 | rx_desc = &(olympic_priv->olympic_rx_ring[rx_ring_last_received]); |
| 858 | cpy_length = (i == 1 ? frag_len : le32_to_cpu(rx_desc->res_length)); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 859 | skb_copy_from_linear_data(olympic_priv->rx_ring_skb[rx_ring_last_received], |
| 860 | skb_put(skb, cpy_length), |
| 861 | cpy_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | pci_dma_sync_single_for_device(olympic_priv->pdev, |
| 863 | le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer), |
| 864 | olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ; |
| 865 | } while (--i) ; |
| 866 | skb_trim(skb,skb->len-4) ; |
| 867 | skb->protocol = tr_type_trans(skb,dev); |
| 868 | netif_rx(skb) ; |
| 869 | } |
| 870 | dev->last_rx = jiffies ; |
| 871 | olympic_priv->olympic_stats.rx_packets++ ; |
| 872 | olympic_priv->olympic_stats.rx_bytes += length ; |
| 873 | } /* if skb == null */ |
| 874 | } /* If status & 0x3b */ |
| 875 | |
| 876 | } else { /*if buffercnt & 0xC */ |
| 877 | olympic_priv->rx_ring_last_received += i ; |
| 878 | olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE - 1) ; |
| 879 | } |
| 880 | |
| 881 | rx_status->fragmentcnt_framelen = 0 ; |
| 882 | rx_status->status_buffercnt = 0 ; |
| 883 | rx_status = &(olympic_priv->olympic_rx_status_ring[(olympic_priv->rx_status_last_received+1) & (OLYMPIC_RX_RING_SIZE -1) ]); |
| 884 | |
| 885 | writew((((readw(olympic_mmio+RXENQ)) & 0x8000) ^ 0x8000) | buffer_cnt , olympic_mmio+RXENQ); |
| 886 | } /* while */ |
| 887 | |
| 888 | } |
| 889 | |
| 890 | static void olympic_freemem(struct net_device *dev) |
| 891 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 892 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | int i; |
| 894 | |
| 895 | for(i=0;i<OLYMPIC_RX_RING_SIZE;i++) { |
| 896 | if (olympic_priv->rx_ring_skb[olympic_priv->rx_status_last_received] != NULL) { |
| 897 | dev_kfree_skb_irq(olympic_priv->rx_ring_skb[olympic_priv->rx_status_last_received]); |
| 898 | olympic_priv->rx_ring_skb[olympic_priv->rx_status_last_received] = NULL; |
| 899 | } |
Al Viro | b710b43 | 2007-12-16 20:53:36 +0000 | [diff] [blame] | 900 | if (olympic_priv->olympic_rx_ring[olympic_priv->rx_status_last_received].buffer != cpu_to_le32(0xdeadbeef)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | pci_unmap_single(olympic_priv->pdev, |
| 902 | le32_to_cpu(olympic_priv->olympic_rx_ring[olympic_priv->rx_status_last_received].buffer), |
| 903 | olympic_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE); |
| 904 | } |
| 905 | olympic_priv->rx_status_last_received++; |
| 906 | olympic_priv->rx_status_last_received&=OLYMPIC_RX_RING_SIZE-1; |
| 907 | } |
| 908 | /* unmap rings */ |
| 909 | pci_unmap_single(olympic_priv->pdev, olympic_priv->rx_status_ring_dma_addr, |
| 910 | sizeof(struct olympic_rx_status) * OLYMPIC_RX_RING_SIZE, PCI_DMA_FROMDEVICE); |
| 911 | pci_unmap_single(olympic_priv->pdev, olympic_priv->rx_ring_dma_addr, |
| 912 | sizeof(struct olympic_rx_desc) * OLYMPIC_RX_RING_SIZE, PCI_DMA_TODEVICE); |
| 913 | |
| 914 | pci_unmap_single(olympic_priv->pdev, olympic_priv->tx_status_ring_dma_addr, |
| 915 | sizeof(struct olympic_tx_status) * OLYMPIC_TX_RING_SIZE, PCI_DMA_FROMDEVICE); |
| 916 | pci_unmap_single(olympic_priv->pdev, olympic_priv->tx_ring_dma_addr, |
| 917 | sizeof(struct olympic_tx_desc) * OLYMPIC_TX_RING_SIZE, PCI_DMA_TODEVICE); |
| 918 | |
| 919 | return ; |
| 920 | } |
| 921 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 922 | static irqreturn_t olympic_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | { |
| 924 | struct net_device *dev= (struct net_device *)dev_id; |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 925 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio; |
| 927 | u32 sisr; |
| 928 | u8 __iomem *adapter_check_area ; |
| 929 | |
| 930 | /* |
| 931 | * Read sisr but don't reset it yet. |
| 932 | * The indication bit may have been set but the interrupt latch |
| 933 | * bit may not be set, so we'd lose the interrupt later. |
| 934 | */ |
| 935 | sisr=readl(olympic_mmio+SISR) ; |
| 936 | if (!(sisr & SISR_MI)) /* Interrupt isn't for us */ |
| 937 | return IRQ_NONE; |
| 938 | sisr=readl(olympic_mmio+SISR_RR) ; /* Read & Reset sisr */ |
| 939 | |
| 940 | spin_lock(&olympic_priv->olympic_lock); |
| 941 | |
| 942 | /* Hotswap gives us this on removal */ |
| 943 | if (sisr == 0xffffffff) { |
| 944 | printk(KERN_WARNING "%s: Hotswap adapter removal.\n",dev->name) ; |
| 945 | spin_unlock(&olympic_priv->olympic_lock) ; |
| 946 | return IRQ_NONE; |
| 947 | } |
| 948 | |
| 949 | if (sisr & (SISR_SRB_REPLY | SISR_TX1_EOF | SISR_RX_STATUS | SISR_ADAPTER_CHECK | |
| 950 | SISR_ASB_FREE | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_RX_NOBUF | SISR_ERR)) { |
| 951 | |
| 952 | /* If we ever get this the adapter is seriously dead. Only a reset is going to |
| 953 | * bring it back to life. We're talking pci bus errors and such like :( */ |
| 954 | if((sisr & SISR_ERR) && (readl(olympic_mmio+EISR) & EISR_MASK_OPTIONS)) { |
| 955 | printk(KERN_ERR "Olympic: EISR Error, EISR=%08x\n",readl(olympic_mmio+EISR)) ; |
| 956 | printk(KERN_ERR "The adapter must be reset to clear this condition.\n") ; |
| 957 | printk(KERN_ERR "Please report this error to the driver maintainer and/\n") ; |
| 958 | printk(KERN_ERR "or the linux-tr mailing list.\n") ; |
| 959 | wake_up_interruptible(&olympic_priv->srb_wait); |
| 960 | spin_unlock(&olympic_priv->olympic_lock) ; |
| 961 | return IRQ_HANDLED; |
| 962 | } /* SISR_ERR */ |
| 963 | |
| 964 | if(sisr & SISR_SRB_REPLY) { |
| 965 | if(olympic_priv->srb_queued==1) { |
| 966 | wake_up_interruptible(&olympic_priv->srb_wait); |
| 967 | } else if (olympic_priv->srb_queued==2) { |
| 968 | olympic_srb_bh(dev) ; |
| 969 | } |
| 970 | olympic_priv->srb_queued=0; |
| 971 | } /* SISR_SRB_REPLY */ |
| 972 | |
| 973 | /* We shouldn't ever miss the Tx interrupt, but the you never know, hence the loop to ensure |
| 974 | we get all tx completions. */ |
| 975 | if (sisr & SISR_TX1_EOF) { |
| 976 | while(olympic_priv->olympic_tx_status_ring[(olympic_priv->tx_ring_last_status + 1) & (OLYMPIC_TX_RING_SIZE-1)].status) { |
| 977 | olympic_priv->tx_ring_last_status++; |
| 978 | olympic_priv->tx_ring_last_status &= (OLYMPIC_TX_RING_SIZE-1); |
| 979 | olympic_priv->free_tx_ring_entries++; |
| 980 | olympic_priv->olympic_stats.tx_bytes += olympic_priv->tx_ring_skb[olympic_priv->tx_ring_last_status]->len; |
| 981 | olympic_priv->olympic_stats.tx_packets++ ; |
| 982 | pci_unmap_single(olympic_priv->pdev, |
| 983 | le32_to_cpu(olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_last_status].buffer), |
| 984 | olympic_priv->tx_ring_skb[olympic_priv->tx_ring_last_status]->len,PCI_DMA_TODEVICE); |
| 985 | dev_kfree_skb_irq(olympic_priv->tx_ring_skb[olympic_priv->tx_ring_last_status]); |
Al Viro | b710b43 | 2007-12-16 20:53:36 +0000 | [diff] [blame] | 986 | olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_last_status].buffer=cpu_to_le32(0xdeadbeef); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | olympic_priv->olympic_tx_status_ring[olympic_priv->tx_ring_last_status].status=0; |
| 988 | } |
| 989 | netif_wake_queue(dev); |
| 990 | } /* SISR_TX1_EOF */ |
| 991 | |
| 992 | if (sisr & SISR_RX_STATUS) { |
| 993 | olympic_rx(dev); |
| 994 | } /* SISR_RX_STATUS */ |
| 995 | |
| 996 | if (sisr & SISR_ADAPTER_CHECK) { |
| 997 | netif_stop_queue(dev); |
| 998 | printk(KERN_WARNING "%s: Adapter Check Interrupt Raised, 8 bytes of information follow:\n", dev->name); |
| 999 | writel(readl(olympic_mmio+LAPWWC),olympic_mmio+LAPA); |
| 1000 | adapter_check_area = olympic_priv->olympic_lap + ((readl(olympic_mmio+LAPWWC)) & (~0xf800)) ; |
| 1001 | printk(KERN_WARNING "%s: Bytes %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",dev->name, readb(adapter_check_area+0), readb(adapter_check_area+1), readb(adapter_check_area+2), readb(adapter_check_area+3), readb(adapter_check_area+4), readb(adapter_check_area+5), readb(adapter_check_area+6), readb(adapter_check_area+7)) ; |
| 1002 | spin_unlock(&olympic_priv->olympic_lock) ; |
| 1003 | return IRQ_HANDLED; |
| 1004 | } /* SISR_ADAPTER_CHECK */ |
| 1005 | |
| 1006 | if (sisr & SISR_ASB_FREE) { |
| 1007 | /* Wake up anything that is waiting for the asb response */ |
| 1008 | if (olympic_priv->asb_queued) { |
| 1009 | olympic_asb_bh(dev) ; |
| 1010 | } |
| 1011 | } /* SISR_ASB_FREE */ |
| 1012 | |
| 1013 | if (sisr & SISR_ARB_CMD) { |
| 1014 | olympic_arb_cmd(dev) ; |
| 1015 | } /* SISR_ARB_CMD */ |
| 1016 | |
| 1017 | if (sisr & SISR_TRB_REPLY) { |
| 1018 | /* Wake up anything that is waiting for the trb response */ |
| 1019 | if (olympic_priv->trb_queued) { |
| 1020 | wake_up_interruptible(&olympic_priv->trb_wait); |
| 1021 | } |
| 1022 | olympic_priv->trb_queued = 0 ; |
| 1023 | } /* SISR_TRB_REPLY */ |
| 1024 | |
| 1025 | if (sisr & SISR_RX_NOBUF) { |
| 1026 | /* According to the documentation, we don't have to do anything, but trapping it keeps it out of |
| 1027 | /var/log/messages. */ |
| 1028 | } /* SISR_RX_NOBUF */ |
| 1029 | } else { |
| 1030 | printk(KERN_WARNING "%s: Unexpected interrupt: %x\n",dev->name, sisr); |
| 1031 | printk(KERN_WARNING "%s: SISR_MASK: %x\n",dev->name, readl(olympic_mmio+SISR_MASK)) ; |
| 1032 | } /* One if the interrupts we want */ |
| 1033 | writel(SISR_MI,olympic_mmio+SISR_MASK_SUM); |
| 1034 | |
| 1035 | spin_unlock(&olympic_priv->olympic_lock) ; |
| 1036 | return IRQ_HANDLED; |
| 1037 | } |
| 1038 | |
| 1039 | static int olympic_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1040 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1041 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio; |
| 1043 | unsigned long flags ; |
| 1044 | |
| 1045 | spin_lock_irqsave(&olympic_priv->olympic_lock, flags); |
| 1046 | |
| 1047 | netif_stop_queue(dev); |
| 1048 | |
| 1049 | if(olympic_priv->free_tx_ring_entries) { |
| 1050 | olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_free].buffer = |
| 1051 | cpu_to_le32(pci_map_single(olympic_priv->pdev, skb->data, skb->len,PCI_DMA_TODEVICE)); |
| 1052 | olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_free].status_length = cpu_to_le32(skb->len | (0x80000000)); |
| 1053 | olympic_priv->tx_ring_skb[olympic_priv->tx_ring_free]=skb; |
| 1054 | olympic_priv->free_tx_ring_entries--; |
| 1055 | |
| 1056 | olympic_priv->tx_ring_free++; |
| 1057 | olympic_priv->tx_ring_free &= (OLYMPIC_TX_RING_SIZE-1); |
| 1058 | writew((((readw(olympic_mmio+TXENQ_1)) & 0x8000) ^ 0x8000) | 1,olympic_mmio+TXENQ_1); |
| 1059 | netif_wake_queue(dev); |
| 1060 | spin_unlock_irqrestore(&olympic_priv->olympic_lock,flags); |
| 1061 | return 0; |
| 1062 | } else { |
| 1063 | spin_unlock_irqrestore(&olympic_priv->olympic_lock,flags); |
| 1064 | return 1; |
| 1065 | } |
| 1066 | |
| 1067 | } |
| 1068 | |
| 1069 | |
| 1070 | static int olympic_close(struct net_device *dev) |
| 1071 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1072 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio,*srb; |
| 1074 | unsigned long t,flags; |
| 1075 | |
| 1076 | DECLARE_WAITQUEUE(wait,current) ; |
| 1077 | |
| 1078 | netif_stop_queue(dev); |
| 1079 | |
| 1080 | writel(olympic_priv->srb,olympic_mmio+LAPA); |
| 1081 | srb=olympic_priv->olympic_lap + (olympic_priv->srb & (~0xf800)); |
| 1082 | |
| 1083 | writeb(SRB_CLOSE_ADAPTER,srb+0); |
| 1084 | writeb(0,srb+1); |
| 1085 | writeb(OLYMPIC_CLEAR_RET_CODE,srb+2); |
| 1086 | |
| 1087 | add_wait_queue(&olympic_priv->srb_wait,&wait) ; |
| 1088 | set_current_state(TASK_INTERRUPTIBLE) ; |
| 1089 | |
| 1090 | spin_lock_irqsave(&olympic_priv->olympic_lock,flags); |
| 1091 | olympic_priv->srb_queued=1; |
| 1092 | |
| 1093 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 1094 | spin_unlock_irqrestore(&olympic_priv->olympic_lock,flags); |
| 1095 | |
| 1096 | while(olympic_priv->srb_queued) { |
| 1097 | |
Nishanth Aravamudan | 3173c89 | 2005-09-11 02:09:55 -0700 | [diff] [blame] | 1098 | t = schedule_timeout_interruptible(60*HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1099 | |
| 1100 | if(signal_pending(current)) { |
| 1101 | printk(KERN_WARNING "%s: SRB timed out.\n",dev->name); |
| 1102 | printk(KERN_WARNING "SISR=%x MISR=%x\n",readl(olympic_mmio+SISR),readl(olympic_mmio+LISR)); |
| 1103 | olympic_priv->srb_queued=0; |
| 1104 | break; |
| 1105 | } |
| 1106 | |
| 1107 | if (t == 0) { |
| 1108 | printk(KERN_WARNING "%s: SRB timed out. May not be fatal. \n",dev->name) ; |
| 1109 | } |
| 1110 | olympic_priv->srb_queued=0; |
| 1111 | } |
| 1112 | remove_wait_queue(&olympic_priv->srb_wait,&wait) ; |
| 1113 | |
| 1114 | olympic_priv->rx_status_last_received++; |
| 1115 | olympic_priv->rx_status_last_received&=OLYMPIC_RX_RING_SIZE-1; |
| 1116 | |
| 1117 | olympic_freemem(dev) ; |
| 1118 | |
| 1119 | /* reset tx/rx fifo's and busmaster logic */ |
| 1120 | |
| 1121 | writel(readl(olympic_mmio+BCTL)|(3<<13),olympic_mmio+BCTL); |
| 1122 | udelay(1); |
| 1123 | writel(readl(olympic_mmio+BCTL)&~(3<<13),olympic_mmio+BCTL); |
| 1124 | |
| 1125 | #if OLYMPIC_DEBUG |
| 1126 | { |
| 1127 | int i ; |
| 1128 | printk("srb(%p): ",srb); |
| 1129 | for(i=0;i<4;i++) |
| 1130 | printk("%x ",readb(srb+i)); |
| 1131 | printk("\n"); |
| 1132 | } |
| 1133 | #endif |
| 1134 | free_irq(dev->irq,dev); |
| 1135 | |
| 1136 | return 0; |
| 1137 | |
| 1138 | } |
| 1139 | |
| 1140 | static void olympic_set_rx_mode(struct net_device *dev) |
| 1141 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1142 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | u8 __iomem *olympic_mmio = olympic_priv->olympic_mmio ; |
| 1144 | u8 options = 0; |
| 1145 | u8 __iomem *srb; |
| 1146 | struct dev_mc_list *dmi ; |
| 1147 | unsigned char dev_mc_address[4] ; |
| 1148 | int i ; |
| 1149 | |
| 1150 | writel(olympic_priv->srb,olympic_mmio+LAPA); |
| 1151 | srb=olympic_priv->olympic_lap + (olympic_priv->srb & (~0xf800)); |
| 1152 | options = olympic_priv->olympic_copy_all_options; |
| 1153 | |
| 1154 | if (dev->flags&IFF_PROMISC) |
| 1155 | options |= 0x61 ; |
| 1156 | else |
| 1157 | options &= ~0x61 ; |
| 1158 | |
| 1159 | /* Only issue the srb if there is a change in options */ |
| 1160 | |
| 1161 | if ((options ^ olympic_priv->olympic_copy_all_options)) { |
| 1162 | |
| 1163 | /* Now to issue the srb command to alter the copy.all.options */ |
| 1164 | |
| 1165 | writeb(SRB_MODIFY_RECEIVE_OPTIONS,srb); |
| 1166 | writeb(0,srb+1); |
| 1167 | writeb(OLYMPIC_CLEAR_RET_CODE,srb+2); |
| 1168 | writeb(0,srb+3); |
| 1169 | writeb(olympic_priv->olympic_receive_options,srb+4); |
| 1170 | writeb(options,srb+5); |
| 1171 | |
| 1172 | olympic_priv->srb_queued=2; /* Can't sleep, use srb_bh */ |
| 1173 | |
| 1174 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 1175 | |
| 1176 | olympic_priv->olympic_copy_all_options = options ; |
| 1177 | |
| 1178 | return ; |
| 1179 | } |
| 1180 | |
| 1181 | /* Set the functional addresses we need for multicast */ |
| 1182 | |
| 1183 | dev_mc_address[0] = dev_mc_address[1] = dev_mc_address[2] = dev_mc_address[3] = 0 ; |
| 1184 | |
| 1185 | for (i=0,dmi=dev->mc_list;i < dev->mc_count; i++,dmi = dmi->next) { |
| 1186 | dev_mc_address[0] |= dmi->dmi_addr[2] ; |
| 1187 | dev_mc_address[1] |= dmi->dmi_addr[3] ; |
| 1188 | dev_mc_address[2] |= dmi->dmi_addr[4] ; |
| 1189 | dev_mc_address[3] |= dmi->dmi_addr[5] ; |
| 1190 | } |
| 1191 | |
| 1192 | writeb(SRB_SET_FUNC_ADDRESS,srb+0); |
| 1193 | writeb(0,srb+1); |
| 1194 | writeb(OLYMPIC_CLEAR_RET_CODE,srb+2); |
| 1195 | writeb(0,srb+3); |
| 1196 | writeb(0,srb+4); |
| 1197 | writeb(0,srb+5); |
| 1198 | writeb(dev_mc_address[0],srb+6); |
| 1199 | writeb(dev_mc_address[1],srb+7); |
| 1200 | writeb(dev_mc_address[2],srb+8); |
| 1201 | writeb(dev_mc_address[3],srb+9); |
| 1202 | |
| 1203 | olympic_priv->srb_queued = 2 ; |
| 1204 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 1205 | |
| 1206 | } |
| 1207 | |
| 1208 | static void olympic_srb_bh(struct net_device *dev) |
| 1209 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1210 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | u8 __iomem *olympic_mmio = olympic_priv->olympic_mmio ; |
| 1212 | u8 __iomem *srb; |
| 1213 | |
| 1214 | writel(olympic_priv->srb,olympic_mmio+LAPA); |
| 1215 | srb=olympic_priv->olympic_lap + (olympic_priv->srb & (~0xf800)); |
| 1216 | |
| 1217 | switch (readb(srb)) { |
| 1218 | |
| 1219 | /* SRB_MODIFY_RECEIVE_OPTIONS i.e. set_multicast_list options (promiscuous) |
| 1220 | * At some point we should do something if we get an error, such as |
| 1221 | * resetting the IFF_PROMISC flag in dev |
| 1222 | */ |
| 1223 | |
| 1224 | case SRB_MODIFY_RECEIVE_OPTIONS: |
| 1225 | switch (readb(srb+2)) { |
| 1226 | case 0x01: |
| 1227 | printk(KERN_WARNING "%s: Unrecognized srb command\n",dev->name) ; |
| 1228 | break ; |
| 1229 | case 0x04: |
| 1230 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name); |
| 1231 | break ; |
| 1232 | default: |
| 1233 | if (olympic_priv->olympic_message_level) |
| 1234 | printk(KERN_WARNING "%s: Receive Options Modified to %x,%x\n",dev->name,olympic_priv->olympic_copy_all_options, olympic_priv->olympic_receive_options) ; |
| 1235 | break ; |
| 1236 | } /* switch srb[2] */ |
| 1237 | break ; |
| 1238 | |
| 1239 | /* SRB_SET_GROUP_ADDRESS - Multicast group setting |
| 1240 | */ |
| 1241 | |
| 1242 | case SRB_SET_GROUP_ADDRESS: |
| 1243 | switch (readb(srb+2)) { |
| 1244 | case 0x00: |
| 1245 | break ; |
| 1246 | case 0x01: |
| 1247 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name) ; |
| 1248 | break ; |
| 1249 | case 0x04: |
| 1250 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name); |
| 1251 | break ; |
| 1252 | case 0x3c: |
| 1253 | printk(KERN_WARNING "%s: Group/Functional address indicator bits not set correctly\n",dev->name) ; |
| 1254 | break ; |
| 1255 | case 0x3e: /* If we ever implement individual multicast addresses, will need to deal with this */ |
| 1256 | printk(KERN_WARNING "%s: Group address registers full\n",dev->name) ; |
| 1257 | break ; |
| 1258 | case 0x55: |
| 1259 | printk(KERN_INFO "%s: Group Address already set.\n",dev->name) ; |
| 1260 | break ; |
| 1261 | default: |
| 1262 | break ; |
| 1263 | } /* switch srb[2] */ |
| 1264 | break ; |
| 1265 | |
| 1266 | /* SRB_RESET_GROUP_ADDRESS - Remove a multicast address from group list |
| 1267 | */ |
| 1268 | |
| 1269 | case SRB_RESET_GROUP_ADDRESS: |
| 1270 | switch (readb(srb+2)) { |
| 1271 | case 0x00: |
| 1272 | break ; |
| 1273 | case 0x01: |
| 1274 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name) ; |
| 1275 | break ; |
| 1276 | case 0x04: |
| 1277 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name) ; |
| 1278 | break ; |
| 1279 | case 0x39: /* Must deal with this if individual multicast addresses used */ |
| 1280 | printk(KERN_INFO "%s: Group address not found \n",dev->name); |
| 1281 | break ; |
| 1282 | default: |
| 1283 | break ; |
| 1284 | } /* switch srb[2] */ |
| 1285 | break ; |
| 1286 | |
| 1287 | |
| 1288 | /* SRB_SET_FUNC_ADDRESS - Called by the set_rx_mode |
| 1289 | */ |
| 1290 | |
| 1291 | case SRB_SET_FUNC_ADDRESS: |
| 1292 | switch (readb(srb+2)) { |
| 1293 | case 0x00: |
| 1294 | if (olympic_priv->olympic_message_level) |
| 1295 | printk(KERN_INFO "%s: Functional Address Mask Set \n",dev->name) ; |
| 1296 | break ; |
| 1297 | case 0x01: |
| 1298 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name) ; |
| 1299 | break ; |
| 1300 | case 0x04: |
| 1301 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name) ; |
| 1302 | break ; |
| 1303 | default: |
| 1304 | break ; |
| 1305 | } /* switch srb[2] */ |
| 1306 | break ; |
| 1307 | |
| 1308 | /* SRB_READ_LOG - Read and reset the adapter error counters |
| 1309 | */ |
| 1310 | |
| 1311 | case SRB_READ_LOG: |
| 1312 | switch (readb(srb+2)) { |
| 1313 | case 0x00: |
| 1314 | if (olympic_priv->olympic_message_level) |
| 1315 | printk(KERN_INFO "%s: Read Log issued\n",dev->name) ; |
| 1316 | break ; |
| 1317 | case 0x01: |
| 1318 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name) ; |
| 1319 | break ; |
| 1320 | case 0x04: |
| 1321 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name) ; |
| 1322 | break ; |
| 1323 | |
| 1324 | } /* switch srb[2] */ |
| 1325 | break ; |
| 1326 | |
| 1327 | /* SRB_READ_SR_COUNTERS - Read and reset the source routing bridge related counters */ |
| 1328 | |
| 1329 | case SRB_READ_SR_COUNTERS: |
| 1330 | switch (readb(srb+2)) { |
| 1331 | case 0x00: |
| 1332 | if (olympic_priv->olympic_message_level) |
| 1333 | printk(KERN_INFO "%s: Read Source Routing Counters issued\n",dev->name) ; |
| 1334 | break ; |
| 1335 | case 0x01: |
| 1336 | printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name) ; |
| 1337 | break ; |
| 1338 | case 0x04: |
| 1339 | printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n",dev->name) ; |
| 1340 | break ; |
| 1341 | default: |
| 1342 | break ; |
| 1343 | } /* switch srb[2] */ |
| 1344 | break ; |
| 1345 | |
| 1346 | default: |
| 1347 | printk(KERN_WARNING "%s: Unrecognized srb bh return value.\n",dev->name); |
| 1348 | break ; |
| 1349 | } /* switch srb[0] */ |
| 1350 | |
| 1351 | } |
| 1352 | |
| 1353 | static struct net_device_stats * olympic_get_stats(struct net_device *dev) |
| 1354 | { |
| 1355 | struct olympic_private *olympic_priv ; |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1356 | olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | return (struct net_device_stats *) &olympic_priv->olympic_stats; |
| 1358 | } |
| 1359 | |
| 1360 | static int olympic_set_mac_address (struct net_device *dev, void *addr) |
| 1361 | { |
| 1362 | struct sockaddr *saddr = addr ; |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1363 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | |
| 1365 | if (netif_running(dev)) { |
| 1366 | printk(KERN_WARNING "%s: Cannot set mac/laa address while card is open\n", dev->name) ; |
| 1367 | return -EIO ; |
| 1368 | } |
| 1369 | |
| 1370 | memcpy(olympic_priv->olympic_laa, saddr->sa_data,dev->addr_len) ; |
| 1371 | |
| 1372 | if (olympic_priv->olympic_message_level) { |
| 1373 | printk(KERN_INFO "%s: MAC/LAA Set to = %x.%x.%x.%x.%x.%x\n",dev->name, olympic_priv->olympic_laa[0], |
| 1374 | olympic_priv->olympic_laa[1], olympic_priv->olympic_laa[2], |
| 1375 | olympic_priv->olympic_laa[3], olympic_priv->olympic_laa[4], |
| 1376 | olympic_priv->olympic_laa[5]); |
| 1377 | } |
| 1378 | |
| 1379 | return 0 ; |
| 1380 | } |
| 1381 | |
| 1382 | static void olympic_arb_cmd(struct net_device *dev) |
| 1383 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1384 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio; |
| 1386 | u8 __iomem *arb_block, *asb_block, *srb ; |
| 1387 | u8 header_len ; |
| 1388 | u16 frame_len, buffer_len ; |
| 1389 | struct sk_buff *mac_frame ; |
| 1390 | u8 __iomem *buf_ptr ; |
| 1391 | u8 __iomem *frame_data ; |
| 1392 | u16 buff_off ; |
| 1393 | u16 lan_status = 0, lan_status_diff ; /* Initialize to stop compiler warning */ |
| 1394 | u8 fdx_prot_error ; |
| 1395 | u16 next_ptr; |
| 1396 | |
| 1397 | arb_block = (olympic_priv->olympic_lap + olympic_priv->arb) ; |
| 1398 | asb_block = (olympic_priv->olympic_lap + olympic_priv->asb) ; |
| 1399 | srb = (olympic_priv->olympic_lap + olympic_priv->srb) ; |
| 1400 | |
| 1401 | if (readb(arb_block+0) == ARB_RECEIVE_DATA) { /* Receive.data, MAC frames */ |
| 1402 | |
| 1403 | header_len = readb(arb_block+8) ; /* 802.5 Token-Ring Header Length */ |
| 1404 | frame_len = swab16(readw(arb_block + 10)) ; |
| 1405 | |
| 1406 | buff_off = swab16(readw(arb_block + 6)) ; |
| 1407 | |
| 1408 | buf_ptr = olympic_priv->olympic_lap + buff_off ; |
| 1409 | |
| 1410 | #if OLYMPIC_DEBUG |
| 1411 | { |
| 1412 | int i; |
| 1413 | frame_data = buf_ptr+offsetof(struct mac_receive_buffer,frame_data) ; |
| 1414 | |
| 1415 | for (i=0 ; i < 14 ; i++) { |
| 1416 | printk("Loc %d = %02x\n",i,readb(frame_data + i)); |
| 1417 | } |
| 1418 | |
| 1419 | printk("next %04x, fs %02x, len %04x \n",readw(buf_ptr+offsetof(struct mac_receive_buffer,next)), readb(buf_ptr+offsetof(struct mac_receive_buffer,frame_status)), readw(buf_ptr+offsetof(struct mac_receive_buffer,buffer_length))); |
| 1420 | } |
| 1421 | #endif |
| 1422 | mac_frame = dev_alloc_skb(frame_len) ; |
| 1423 | if (!mac_frame) { |
| 1424 | printk(KERN_WARNING "%s: Memory squeeze, dropping frame.\n", dev->name); |
| 1425 | goto drop_frame; |
| 1426 | } |
| 1427 | |
| 1428 | /* Walk the buffer chain, creating the frame */ |
| 1429 | |
| 1430 | do { |
| 1431 | frame_data = buf_ptr+offsetof(struct mac_receive_buffer,frame_data) ; |
| 1432 | buffer_len = swab16(readw(buf_ptr+offsetof(struct mac_receive_buffer,buffer_length))); |
| 1433 | memcpy_fromio(skb_put(mac_frame, buffer_len), frame_data , buffer_len ) ; |
| 1434 | next_ptr=readw(buf_ptr+offsetof(struct mac_receive_buffer,next)); |
Al Viro | b710b43 | 2007-12-16 20:53:36 +0000 | [diff] [blame] | 1435 | } while (next_ptr && (buf_ptr=olympic_priv->olympic_lap + swab16(next_ptr))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | |
Arnaldo Carvalho de Melo | c1a4b86 | 2007-03-19 15:27:07 -0700 | [diff] [blame] | 1437 | mac_frame->protocol = tr_type_trans(mac_frame, dev); |
| 1438 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | if (olympic_priv->olympic_network_monitor) { |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1440 | struct trh_hdr *mac_hdr; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1441 | printk(KERN_WARNING "%s: Received MAC Frame, details: \n",dev->name); |
Arnaldo Carvalho de Melo | c1a4b86 | 2007-03-19 15:27:07 -0700 | [diff] [blame] | 1442 | mac_hdr = tr_hdr(mac_frame); |
David S. Miller | 21f644f | 2008-04-08 16:50:44 -0700 | [diff] [blame] | 1443 | printk(KERN_WARNING "%s: MAC Frame Dest. Addr: " |
| 1444 | MAC_FMT " \n", dev->name, |
| 1445 | mac_hdr->daddr[0], mac_hdr->daddr[1], |
| 1446 | mac_hdr->daddr[2], mac_hdr->daddr[3], |
| 1447 | mac_hdr->daddr[4], mac_hdr->daddr[5]); |
| 1448 | printk(KERN_WARNING "%s: MAC Frame Srce. Addr: " |
| 1449 | MAC_FMT " \n", dev->name, |
| 1450 | mac_hdr->saddr[0], mac_hdr->saddr[1], |
| 1451 | mac_hdr->saddr[2], mac_hdr->saddr[3], |
| 1452 | mac_hdr->saddr[4], mac_hdr->saddr[5]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | } |
Arnaldo Carvalho de Melo | c1a4b86 | 2007-03-19 15:27:07 -0700 | [diff] [blame] | 1454 | netif_rx(mac_frame); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | dev->last_rx = jiffies; |
| 1456 | |
| 1457 | drop_frame: |
| 1458 | /* Now tell the card we have dealt with the received frame */ |
| 1459 | |
| 1460 | /* Set LISR Bit 1 */ |
| 1461 | writel(LISR_ARB_FREE,olympic_priv->olympic_mmio + LISR_SUM); |
| 1462 | |
| 1463 | /* Is the ASB free ? */ |
| 1464 | |
| 1465 | if (readb(asb_block + 2) != 0xff) { |
| 1466 | olympic_priv->asb_queued = 1 ; |
| 1467 | writel(LISR_ASB_FREE_REQ,olympic_priv->olympic_mmio+LISR_SUM); |
| 1468 | return ; |
| 1469 | /* Drop out and wait for the bottom half to be run */ |
| 1470 | } |
| 1471 | |
| 1472 | writeb(ASB_RECEIVE_DATA,asb_block); /* Receive data */ |
| 1473 | writeb(OLYMPIC_CLEAR_RET_CODE,asb_block+2); /* Necessary ?? */ |
| 1474 | writeb(readb(arb_block+6),asb_block+6); /* Must send the address back to the adapter */ |
| 1475 | writeb(readb(arb_block+7),asb_block+7); /* To let it know we have dealt with the data */ |
| 1476 | |
| 1477 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ,olympic_priv->olympic_mmio+LISR_SUM); |
| 1478 | |
| 1479 | olympic_priv->asb_queued = 2 ; |
| 1480 | |
| 1481 | return ; |
| 1482 | |
| 1483 | } else if (readb(arb_block) == ARB_LAN_CHANGE_STATUS) { /* Lan.change.status */ |
| 1484 | lan_status = swab16(readw(arb_block+6)); |
| 1485 | fdx_prot_error = readb(arb_block+8) ; |
| 1486 | |
| 1487 | /* Issue ARB Free */ |
| 1488 | writel(LISR_ARB_FREE,olympic_priv->olympic_mmio+LISR_SUM); |
| 1489 | |
| 1490 | lan_status_diff = olympic_priv->olympic_lan_status ^ lan_status ; |
| 1491 | |
| 1492 | if (lan_status_diff & (LSC_LWF | LSC_ARW | LSC_FPE | LSC_RR) ) { |
| 1493 | if (lan_status_diff & LSC_LWF) |
| 1494 | printk(KERN_WARNING "%s: Short circuit detected on the lobe\n",dev->name); |
| 1495 | if (lan_status_diff & LSC_ARW) |
| 1496 | printk(KERN_WARNING "%s: Auto removal error\n",dev->name); |
| 1497 | if (lan_status_diff & LSC_FPE) |
| 1498 | printk(KERN_WARNING "%s: FDX Protocol Error\n",dev->name); |
| 1499 | if (lan_status_diff & LSC_RR) |
| 1500 | printk(KERN_WARNING "%s: Force remove MAC frame received\n",dev->name); |
| 1501 | |
| 1502 | /* Adapter has been closed by the hardware */ |
| 1503 | |
| 1504 | /* reset tx/rx fifo's and busmaster logic */ |
| 1505 | |
| 1506 | writel(readl(olympic_mmio+BCTL)|(3<<13),olympic_mmio+BCTL); |
| 1507 | udelay(1); |
| 1508 | writel(readl(olympic_mmio+BCTL)&~(3<<13),olympic_mmio+BCTL); |
| 1509 | netif_stop_queue(dev); |
| 1510 | olympic_priv->srb = readw(olympic_priv->olympic_lap + LAPWWO) ; |
| 1511 | printk(KERN_WARNING "%s: Adapter has been closed \n", dev->name) ; |
| 1512 | } /* If serious error */ |
| 1513 | |
| 1514 | if (olympic_priv->olympic_message_level) { |
| 1515 | if (lan_status_diff & LSC_SIG_LOSS) |
| 1516 | printk(KERN_WARNING "%s: No receive signal detected \n", dev->name) ; |
| 1517 | if (lan_status_diff & LSC_HARD_ERR) |
| 1518 | printk(KERN_INFO "%s: Beaconing \n",dev->name); |
| 1519 | if (lan_status_diff & LSC_SOFT_ERR) |
| 1520 | printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame \n",dev->name); |
| 1521 | if (lan_status_diff & LSC_TRAN_BCN) |
| 1522 | printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n",dev->name); |
| 1523 | if (lan_status_diff & LSC_SS) |
| 1524 | printk(KERN_INFO "%s: Single Station on the ring \n", dev->name); |
| 1525 | if (lan_status_diff & LSC_RING_REC) |
| 1526 | printk(KERN_INFO "%s: Ring recovery ongoing\n",dev->name); |
| 1527 | if (lan_status_diff & LSC_FDX_MODE) |
| 1528 | printk(KERN_INFO "%s: Operating in FDX mode\n",dev->name); |
| 1529 | } |
| 1530 | |
| 1531 | if (lan_status_diff & LSC_CO) { |
| 1532 | |
| 1533 | if (olympic_priv->olympic_message_level) |
| 1534 | printk(KERN_INFO "%s: Counter Overflow \n", dev->name); |
| 1535 | |
| 1536 | /* Issue READ.LOG command */ |
| 1537 | |
| 1538 | writeb(SRB_READ_LOG, srb); |
| 1539 | writeb(0,srb+1); |
| 1540 | writeb(OLYMPIC_CLEAR_RET_CODE,srb+2); |
| 1541 | writeb(0,srb+3); |
| 1542 | writeb(0,srb+4); |
| 1543 | writeb(0,srb+5); |
| 1544 | |
| 1545 | olympic_priv->srb_queued=2; /* Can't sleep, use srb_bh */ |
| 1546 | |
| 1547 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 1548 | |
| 1549 | } |
| 1550 | |
| 1551 | if (lan_status_diff & LSC_SR_CO) { |
| 1552 | |
| 1553 | if (olympic_priv->olympic_message_level) |
| 1554 | printk(KERN_INFO "%s: Source routing counters overflow\n", dev->name); |
| 1555 | |
| 1556 | /* Issue a READ.SR.COUNTERS */ |
| 1557 | |
| 1558 | writeb(SRB_READ_SR_COUNTERS,srb); |
| 1559 | writeb(0,srb+1); |
| 1560 | writeb(OLYMPIC_CLEAR_RET_CODE,srb+2); |
| 1561 | writeb(0,srb+3); |
| 1562 | |
| 1563 | olympic_priv->srb_queued=2; /* Can't sleep, use srb_bh */ |
| 1564 | |
| 1565 | writel(LISR_SRB_CMD,olympic_mmio+LISR_SUM); |
| 1566 | |
| 1567 | } |
| 1568 | |
| 1569 | olympic_priv->olympic_lan_status = lan_status ; |
| 1570 | |
| 1571 | } /* Lan.change.status */ |
| 1572 | else |
| 1573 | printk(KERN_WARNING "%s: Unknown arb command \n", dev->name); |
| 1574 | } |
| 1575 | |
| 1576 | static void olympic_asb_bh(struct net_device *dev) |
| 1577 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1578 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1579 | u8 __iomem *arb_block, *asb_block ; |
| 1580 | |
| 1581 | arb_block = (olympic_priv->olympic_lap + olympic_priv->arb) ; |
| 1582 | asb_block = (olympic_priv->olympic_lap + olympic_priv->asb) ; |
| 1583 | |
| 1584 | if (olympic_priv->asb_queued == 1) { /* Dropped through the first time */ |
| 1585 | |
| 1586 | writeb(ASB_RECEIVE_DATA,asb_block); /* Receive data */ |
| 1587 | writeb(OLYMPIC_CLEAR_RET_CODE,asb_block+2); /* Necessary ?? */ |
| 1588 | writeb(readb(arb_block+6),asb_block+6); /* Must send the address back to the adapter */ |
| 1589 | writeb(readb(arb_block+7),asb_block+7); /* To let it know we have dealt with the data */ |
| 1590 | |
| 1591 | writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ,olympic_priv->olympic_mmio+LISR_SUM); |
| 1592 | olympic_priv->asb_queued = 2 ; |
| 1593 | |
| 1594 | return ; |
| 1595 | } |
| 1596 | |
| 1597 | if (olympic_priv->asb_queued == 2) { |
| 1598 | switch (readb(asb_block+2)) { |
| 1599 | case 0x01: |
| 1600 | printk(KERN_WARNING "%s: Unrecognized command code \n", dev->name); |
| 1601 | break ; |
| 1602 | case 0x26: |
| 1603 | printk(KERN_WARNING "%s: Unrecognized buffer address \n", dev->name); |
| 1604 | break ; |
| 1605 | case 0xFF: |
| 1606 | /* Valid response, everything should be ok again */ |
| 1607 | break ; |
| 1608 | default: |
| 1609 | printk(KERN_WARNING "%s: Invalid return code in asb\n",dev->name); |
| 1610 | break ; |
| 1611 | } |
| 1612 | } |
| 1613 | olympic_priv->asb_queued = 0 ; |
| 1614 | } |
| 1615 | |
| 1616 | static int olympic_change_mtu(struct net_device *dev, int mtu) |
| 1617 | { |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1618 | struct olympic_private *olympic_priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | u16 max_mtu ; |
| 1620 | |
| 1621 | if (olympic_priv->olympic_ring_speed == 4) |
| 1622 | max_mtu = 4500 ; |
| 1623 | else |
| 1624 | max_mtu = 18000 ; |
| 1625 | |
| 1626 | if (mtu > max_mtu) |
| 1627 | return -EINVAL ; |
| 1628 | if (mtu < 100) |
| 1629 | return -EINVAL ; |
| 1630 | |
| 1631 | dev->mtu = mtu ; |
| 1632 | olympic_priv->pkt_buf_sz = mtu + TR_HLEN ; |
| 1633 | |
| 1634 | return 0 ; |
| 1635 | } |
| 1636 | |
| 1637 | static int olympic_proc_info(char *buffer, char **start, off_t offset, int length, int *eof, void *data) |
| 1638 | { |
| 1639 | struct net_device *dev = (struct net_device *)data ; |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1640 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | u8 __iomem *oat = (olympic_priv->olympic_lap + olympic_priv->olympic_addr_table_addr) ; |
| 1642 | u8 __iomem *opt = (olympic_priv->olympic_lap + olympic_priv->olympic_parms_addr) ; |
| 1643 | int size = 0 ; |
| 1644 | int len=0; |
| 1645 | off_t begin=0; |
| 1646 | off_t pos=0; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1647 | u8 addr[6]; |
| 1648 | u8 addr2[6]; |
| 1649 | int i; |
| 1650 | DECLARE_MAC_BUF(mac); |
| 1651 | DECLARE_MAC_BUF(mac2); |
| 1652 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | size = sprintf(buffer, |
| 1654 | "IBM Pit/Pit-Phy/Olympic Chipset Token Ring Adapter %s\n",dev->name); |
| 1655 | size += sprintf(buffer+size, "\n%6s: Adapter Address : Node Address : Functional Addr\n", |
| 1656 | dev->name); |
| 1657 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1658 | for (i = 0 ; i < 6 ; i++) |
| 1659 | addr[i] = readb(oat+offsetof(struct olympic_adapter_addr_table,node_addr) + i); |
| 1660 | |
| 1661 | size += sprintf(buffer+size, "%6s: %s : %s : %02x:%02x:%02x:%02x\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | dev->name, |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1663 | print_mac(mac, dev->dev_addr), |
| 1664 | print_mac(mac2, addr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)), |
| 1666 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+1), |
| 1667 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+2), |
| 1668 | readb(oat+offsetof(struct olympic_adapter_addr_table,func_addr)+3)); |
| 1669 | |
| 1670 | size += sprintf(buffer+size, "\n%6s: Token Ring Parameters Table:\n", dev->name); |
| 1671 | |
| 1672 | size += sprintf(buffer+size, "%6s: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code :\n", |
| 1673 | dev->name) ; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1674 | |
| 1675 | for (i = 0 ; i < 6 ; i++) |
| 1676 | addr[i] = readb(opt+offsetof(struct olympic_parameters_table, up_node_addr) + i); |
| 1677 | for (i = 0 ; i < 6 ; i++) |
| 1678 | addr2[i] = readb(opt+offsetof(struct olympic_parameters_table, poll_addr) + i); |
| 1679 | |
| 1680 | size += sprintf(buffer+size, "%6s: %02x:%02x:%02x:%02x : %s : %s : %04x : %04x : %04x :\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | dev->name, |
| 1682 | readb(opt+offsetof(struct olympic_parameters_table, phys_addr)), |
| 1683 | readb(opt+offsetof(struct olympic_parameters_table, phys_addr)+1), |
| 1684 | readb(opt+offsetof(struct olympic_parameters_table, phys_addr)+2), |
| 1685 | readb(opt+offsetof(struct olympic_parameters_table, phys_addr)+3), |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1686 | print_mac(mac, addr), |
| 1687 | print_mac(mac2, addr2), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | swab16(readw(opt+offsetof(struct olympic_parameters_table, acc_priority))), |
| 1689 | swab16(readw(opt+offsetof(struct olympic_parameters_table, auth_source_class))), |
| 1690 | swab16(readw(opt+offsetof(struct olympic_parameters_table, att_code)))); |
| 1691 | |
| 1692 | size += sprintf(buffer+size, "%6s: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : \n", |
| 1693 | dev->name) ; |
| 1694 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1695 | for (i = 0 ; i < 6 ; i++) |
| 1696 | addr[i] = readb(opt+offsetof(struct olympic_parameters_table, source_addr) + i); |
| 1697 | size += sprintf(buffer+size, "%6s: %s : %04x : %04x : %04x : %04x : %04x : %04x : \n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1698 | dev->name, |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1699 | print_mac(mac, addr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | swab16(readw(opt+offsetof(struct olympic_parameters_table, beacon_type))), |
| 1701 | swab16(readw(opt+offsetof(struct olympic_parameters_table, major_vector))), |
| 1702 | swab16(readw(opt+offsetof(struct olympic_parameters_table, lan_status))), |
| 1703 | swab16(readw(opt+offsetof(struct olympic_parameters_table, local_ring))), |
| 1704 | swab16(readw(opt+offsetof(struct olympic_parameters_table, mon_error))), |
| 1705 | swab16(readw(opt+offsetof(struct olympic_parameters_table, frame_correl)))); |
| 1706 | |
| 1707 | size += sprintf(buffer+size, "%6s: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : \n", |
| 1708 | dev->name) ; |
| 1709 | |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1710 | for (i = 0 ; i < 6 ; i++) |
| 1711 | addr[i] = readb(opt+offsetof(struct olympic_parameters_table, beacon_naun) + i); |
| 1712 | size += sprintf(buffer+size, "%6s: : %02x : %02x : %s : %02x:%02x:%02x:%02x : \n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | dev->name, |
| 1714 | swab16(readw(opt+offsetof(struct olympic_parameters_table, beacon_transmit))), |
| 1715 | swab16(readw(opt+offsetof(struct olympic_parameters_table, beacon_receive))), |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1716 | print_mac(mac, addr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | readb(opt+offsetof(struct olympic_parameters_table, beacon_phys)), |
| 1718 | readb(opt+offsetof(struct olympic_parameters_table, beacon_phys)+1), |
| 1719 | readb(opt+offsetof(struct olympic_parameters_table, beacon_phys)+2), |
| 1720 | readb(opt+offsetof(struct olympic_parameters_table, beacon_phys)+3)); |
| 1721 | |
| 1722 | len=size; |
| 1723 | pos=begin+size; |
| 1724 | if (pos<offset) { |
| 1725 | len=0; |
| 1726 | begin=pos; |
| 1727 | } |
| 1728 | *start=buffer+(offset-begin); /* Start of wanted data */ |
| 1729 | len-=(offset-begin); /* Start slop */ |
| 1730 | if(len>length) |
| 1731 | len=length; /* Ending slop */ |
| 1732 | return len; |
| 1733 | } |
| 1734 | |
| 1735 | static void __devexit olympic_remove_one(struct pci_dev *pdev) |
| 1736 | { |
| 1737 | struct net_device *dev = pci_get_drvdata(pdev) ; |
Yoann Padioleau | eda1053 | 2007-07-23 15:18:21 +0200 | [diff] [blame] | 1738 | struct olympic_private *olympic_priv=netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | |
| 1740 | if (olympic_priv->olympic_network_monitor) { |
| 1741 | char proc_name[20] ; |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 1742 | strcpy(proc_name,"olympic_") ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | strcat(proc_name,dev->name) ; |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 1744 | remove_proc_entry(proc_name,init_net.proc_net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1745 | } |
| 1746 | unregister_netdev(dev) ; |
| 1747 | iounmap(olympic_priv->olympic_mmio) ; |
| 1748 | iounmap(olympic_priv->olympic_lap) ; |
| 1749 | pci_release_regions(pdev) ; |
| 1750 | pci_set_drvdata(pdev,NULL) ; |
| 1751 | free_netdev(dev) ; |
| 1752 | } |
| 1753 | |
| 1754 | static struct pci_driver olympic_driver = { |
| 1755 | .name = "olympic", |
| 1756 | .id_table = olympic_pci_tbl, |
| 1757 | .probe = olympic_probe, |
| 1758 | .remove = __devexit_p(olympic_remove_one), |
| 1759 | }; |
| 1760 | |
| 1761 | static int __init olympic_pci_init(void) |
| 1762 | { |
Henrik Kretzschmar | 83717cf | 2006-10-10 14:33:29 -0700 | [diff] [blame] | 1763 | return pci_register_driver(&olympic_driver) ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | } |
| 1765 | |
| 1766 | static void __exit olympic_pci_cleanup(void) |
| 1767 | { |
| 1768 | pci_unregister_driver(&olympic_driver) ; |
| 1769 | } |
| 1770 | |
| 1771 | |
| 1772 | module_init(olympic_pci_init) ; |
| 1773 | module_exit(olympic_pci_cleanup) ; |
| 1774 | |
| 1775 | MODULE_LICENSE("GPL"); |