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dev_ioctl: split out ndo_eth_ioctl
[linux-2.6-block.git] / drivers / net / ethernet / ti / tlan.c
CommitLineData
1da177e4
LT		 1/*******************************************************************************
2 *
3 * Linux ThunderLAN Driver
4 *
5 * tlan.c
6 * by James Banks
7 *
8 * (C) 1997-1998 Caldera, Inc.
9 * (C) 1998 James Banks
10 * (C) 1999-2001 Torben Mathiasen
11 * (C) 2002 Samuel Chessman
12 *
13 * This software may be used and distributed according to the terms
14 * of the GNU General Public License, incorporated herein by reference.
15 *
1da177e4
LT		 16 ** Useful (if not required) reading:
17 *
18 * Texas Instruments, ThunderLAN Programmer's Guide,
19 * TI Literature Number SPWU013A
20 * available in PDF format from www.ti.com
21 * Level One, LXT901 and LXT970 Data Sheets
22 * available in PDF format from www.level1.com
23 * National Semiconductor, DP83840A Data Sheet
24 * available in PDF format from www.national.com
25 * Microchip Technology, 24C01A/02A/04A Data Sheet
26 * available in PDF format from www.microchip.com
27 *
c659c38b 28 ******************************************************************************/
1da177e4 29
50624aab
JP		 30#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
a6b7a407 32#include <linux/hardirq.h>
1da177e4
LT		 33#include <linux/module.h>
34#include <linux/init.h>
a6b7a407 35#include <linux/interrupt.h>
1da177e4
LT		 36#include <linux/ioport.h>
37#include <linux/eisa.h>
38#include <linux/pci.h>
1e7f0bd8 39#include <linux/dma-mapping.h>
1da177e4
LT		 40#include <linux/netdevice.h>
41#include <linux/etherdevice.h>
42#include <linux/delay.h>
43#include <linux/spinlock.h>
44#include <linux/workqueue.h>
45#include <linux/mii.h>
46
47#include "tlan.h"
48
1da177e4
LT		 49
50/* For removing EISA devices */
c659c38b 51static struct net_device *tlan_eisa_devices;
1da177e4 52
c659c38b 53static int tlan_devices_installed;
1da177e4
LT		 54
55/* Set speed, duplex and aui settings */
56static int aui[MAX_TLAN_BOARDS];
57static int duplex[MAX_TLAN_BOARDS];
58static int speed[MAX_TLAN_BOARDS];
59static int boards_found;
15efa9bb
SH		 60module_param_array(aui, int, NULL, 0);
61module_param_array(duplex, int, NULL, 0);
62module_param_array(speed, int, NULL, 0);
63MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
c659c38b
SA		 64MODULE_PARM_DESC(duplex,
65 "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
50624aab 66MODULE_PARM_DESC(speed, "ThunderLAN port speed setting(s) (0,10,100)");
1da177e4
LT		 67
68MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
69MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
70MODULE_LICENSE("GPL");
71
b255e500 72/* Turn on debugging.
132db935 73 * See Documentation/networking/device_drivers/ethernet/ti/tlan.rst for details
b255e500 74 */
1da177e4 75static int debug;
15efa9bb
SH		 76module_param(debug, int, 0);
77MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
1da177e4 78
c659c38b 79static const char tlan_signature[] = "TLAN";
fa6d5d4f 80static const char tlan_banner[] = "ThunderLAN driver v1.17\n";
1da177e4
LT		 81static int tlan_have_pci;
82static int tlan_have_eisa;
83
c659c38b
SA		 84static const char * const media[] = {
85 "10BaseT-HD", "10BaseT-FD", "100baseTx-HD",
86 "100BaseTx-FD", "100BaseT4", NULL
1da177e4
LT		 87};
88
89static struct board {
c659c38b
SA		 90 const char *device_label;
91 u32 flags;
92 u16 addr_ofs;
1da177e4
LT		 93} board_info[] = {
94 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 95 { "Compaq Netelligent 10/100 TX PCI UTP",
96 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
1da177e4 97 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 98 { "Compaq NetFlex-3/P",
99 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
1da177e4 100 { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6
SH		 101 { "Compaq Netelligent Integrated 10/100 TX UTP",
102 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b
SA		 103 { "Compaq Netelligent Dual 10/100 TX PCI UTP",
104 TLAN_ADAPTER_NONE, 0x83 },
105 { "Compaq Netelligent 10/100 TX Embedded UTP",
106 TLAN_ADAPTER_NONE, 0x83 },
1da177e4 107 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
eb522bb4
OZ		 108 { "Olicom OC-2325", TLAN_ADAPTER_ACTIVITY_LED |
109 TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 },
110 { "Olicom OC-2326", TLAN_ADAPTER_ACTIVITY_LED |
111 TLAN_ADAPTER_USE_INTERN_10, 0xf8 },
1da177e4 112 { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
c659c38b 113 { "Compaq Netelligent 10 T/2 PCI UTP/coax", TLAN_ADAPTER_NONE, 0x83 },
dfc2c0a6 114 { "Compaq NetFlex-3/E",
c659c38b 115 TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
dfc2c0a6 116 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
c659c38b
SA		 117 { "Compaq NetFlex-3/E",
118 TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
1da177e4
LT		 119};
120
9baa3c34 121static const struct pci_device_id tlan_pci_tbl[] = {
1da177e4 122 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
c659c38b 123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1da177e4 124 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
c659c38b 125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
1da177e4 126 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
c659c38b 127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
1da177e4 128 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
c659c38b 129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
1da177e4 130 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
c659c38b 131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
1da177e4 132 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
c659c38b 133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
1da177e4 134 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
c659c38b 135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
1da177e4 136 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
c659c38b 137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
1da177e4 138 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
c659c38b 139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
1da177e4 140 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
c659c38b 141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
1da177e4 142 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
c659c38b 143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
1da177e4 144 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
c659c38b 145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
1da177e4 146 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
c659c38b 147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
1da177e4
LT		 148 { 0,}
149};
6aa20a22 150MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
1da177e4 151
c659c38b
SA		 152static void tlan_eisa_probe(void);
153static void tlan_eisa_cleanup(void);
154static int tlan_init(struct net_device *);
155static int tlan_open(struct net_device *dev);
156static netdev_tx_t tlan_start_tx(struct sk_buff *, struct net_device *);
157static irqreturn_t tlan_handle_interrupt(int, void *);
158static int tlan_close(struct net_device *);
159static struct net_device_stats *tlan_get_stats(struct net_device *);
160static void tlan_set_multicast_list(struct net_device *);
161static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
162static int tlan_probe1(struct pci_dev *pdev, long ioaddr,
163 int irq, int rev, const struct pci_device_id *ent);
0290bd29 164static void tlan_tx_timeout(struct net_device *dev, unsigned int txqueue);
c659c38b
SA		 165static void tlan_tx_timeout_work(struct work_struct *work);
166static int tlan_init_one(struct pci_dev *pdev,
167 const struct pci_device_id *ent);
168
169static u32 tlan_handle_tx_eof(struct net_device *, u16);
170static u32 tlan_handle_stat_overflow(struct net_device *, u16);
171static u32 tlan_handle_rx_eof(struct net_device *, u16);
172static u32 tlan_handle_dummy(struct net_device *, u16);
173static u32 tlan_handle_tx_eoc(struct net_device *, u16);
174static u32 tlan_handle_status_check(struct net_device *, u16);
175static u32 tlan_handle_rx_eoc(struct net_device *, u16);
176
0010e3f8
KC		 177static void tlan_timer(struct timer_list *t);
178static void tlan_phy_monitor(struct timer_list *t);
c659c38b
SA		 179
180static void tlan_reset_lists(struct net_device *);
181static void tlan_free_lists(struct net_device *);
182static void tlan_print_dio(u16);
183static void tlan_print_list(struct tlan_list *, char *, int);
184static void tlan_read_and_clear_stats(struct net_device *, int);
185static void tlan_reset_adapter(struct net_device *);
186static void tlan_finish_reset(struct net_device *);
187static void tlan_set_mac(struct net_device *, int areg, char *mac);
188
beca9282 189static void __tlan_phy_print(struct net_device *);
c659c38b
SA		 190static void tlan_phy_print(struct net_device *);
191static void tlan_phy_detect(struct net_device *);
192static void tlan_phy_power_down(struct net_device *);
193static void tlan_phy_power_up(struct net_device *);
194static void tlan_phy_reset(struct net_device *);
195static void tlan_phy_start_link(struct net_device *);
196static void tlan_phy_finish_auto_neg(struct net_device *);
1da177e4
LT		 197
198/*
c659c38b
SA		 199 static int tlan_phy_nop(struct net_device *);
200 static int tlan_phy_internal_check(struct net_device *);
201 static int tlan_phy_internal_service(struct net_device *);
202 static int tlan_phy_dp83840a_check(struct net_device *);
1da177e4
LT		 203*/
204
beca9282
SAS		 205static bool __tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
206static void tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
c659c38b
SA		 207static void tlan_mii_send_data(u16, u32, unsigned);
208static void tlan_mii_sync(u16);
beca9282 209static void __tlan_mii_write_reg(struct net_device *, u16, u16, u16);
c659c38b 210static void tlan_mii_write_reg(struct net_device *, u16, u16, u16);
1da177e4 211
c659c38b
SA		 212static void tlan_ee_send_start(u16);
213static int tlan_ee_send_byte(u16, u8, int);
214static void tlan_ee_receive_byte(u16, u8 *, int);
215static int tlan_ee_read_byte(struct net_device *, u8, u8 *);
1da177e4
LT		 216
217
93e16847 218static inline void
c659c38b 219tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb)
1da177e4
LT		 220{
221 unsigned long addr = (unsigned long)skb;
93e16847
SH		 222 tag->buffer[9].address = addr;
223 tag->buffer[8].address = upper_32_bits(addr);
1da177e4
LT		 224}
225
93e16847 226static inline struct sk_buff *
c659c38b 227tlan_get_skb(const struct tlan_list *tag)
1da177e4 228{
93e16847
SH		 229 unsigned long addr;
230
0d63bea2 231 addr = tag->buffer[9].address;
da3a9e9e 232 addr |= ((unsigned long) tag->buffer[8].address << 16) << 16;
1da177e4
LT		 233 return (struct sk_buff *) addr;
234}
235
c659c38b
SA		 236static u32
237(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
a3ccc789 238 NULL,
c659c38b
SA		 239 tlan_handle_tx_eof,
240 tlan_handle_stat_overflow,
241 tlan_handle_rx_eof,
242 tlan_handle_dummy,
243 tlan_handle_tx_eoc,
244 tlan_handle_status_check,
245 tlan_handle_rx_eoc
1da177e4
LT		 246};
247
beca9282 248static void
c659c38b 249tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
1da177e4 250{
c659c38b 251 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 252 unsigned long flags = 0;
6aa20a22 253
beca9282 254 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 255 if (priv->timer.function != NULL &&
256 priv->timer_type != TLAN_TIMER_ACTIVITY) {
beca9282 257 spin_unlock_irqrestore(&priv->lock, flags);
1da177e4
LT		 258 return;
259 }
841b86f3 260 priv->timer.function = tlan_timer;
beca9282 261 spin_unlock_irqrestore(&priv->lock, flags);
1da177e4 262
c659c38b
SA		 263 priv->timer_set_at = jiffies;
264 priv->timer_type = type;
1da177e4 265 mod_timer(&priv->timer, jiffies + ticks);
6aa20a22 266
c659c38b 267}
1da177e4
LT		 268
269
270/*****************************************************************************
271******************************************************************************
272
c659c38b 273ThunderLAN driver primary functions
1da177e4 274
c659c38b 275these functions are more or less common to all linux network drivers.
1da177e4
LT		 276
277******************************************************************************
278*****************************************************************************/
279
280
281
282
283
c659c38b
SA		 284/***************************************************************
285 * tlan_remove_one
286 *
287 * Returns:
288 * Nothing
289 * Parms:
290 * None
291 *
292 * Goes through the TLanDevices list and frees the device
293 * structs and memory associated with each device (lists
294 * and buffers). It also ureserves the IO port regions
295 * associated with this device.
296 *
297 **************************************************************/
1da177e4
LT		 298
299
36915876 300static void tlan_remove_one(struct pci_dev *pdev)
1da177e4 301{
c659c38b
SA		 302 struct net_device *dev = pci_get_drvdata(pdev);
303 struct tlan_priv *priv = netdev_priv(dev);
6aa20a22 304
c659c38b 305 unregister_netdev(dev);
1da177e4 306
c659c38b 307 if (priv->dma_storage) {
9720bae3
CJ		 308 dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
309 priv->dma_storage, priv->dma_storage_dma);
1da177e4
LT		 310 }
311
312#ifdef CONFIG_PCI
313 pci_release_regions(pdev);
314#endif
6aa20a22 315
1e0a8b13 316 cancel_work_sync(&priv->tlan_tqueue);
0336f8ff 317 free_netdev(dev);
6aa20a22 318}
1da177e4 319
fa6d5d4f
SA		 320static void tlan_start(struct net_device *dev)
321{
322 tlan_reset_lists(dev);
323 /* NOTE: It might not be necessary to read the stats before a
324 reset if you don't care what the values are.
325 */
326 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
327 tlan_reset_adapter(dev);
328 netif_wake_queue(dev);
329}
330
331static void tlan_stop(struct net_device *dev)
332{
333 struct tlan_priv *priv = netdev_priv(dev);
334
c0a87c22 335 del_timer_sync(&priv->media_timer);
fa6d5d4f
SA		 336 tlan_read_and_clear_stats(dev, TLAN_RECORD);
337 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
338 /* Reset and power down phy */
339 tlan_reset_adapter(dev);
340 if (priv->timer.function != NULL) {
341 del_timer_sync(&priv->timer);
342 priv->timer.function = NULL;
343 }
344}
345
04db6465 346static int __maybe_unused tlan_suspend(struct device *dev_d)
fa6d5d4f 347{
04db6465 348 struct net_device *dev = dev_get_drvdata(dev_d);
fa6d5d4f
SA		 349
350 if (netif_running(dev))
351 tlan_stop(dev);
352
353 netif_device_detach(dev);
fa6d5d4f
SA		 354
355 return 0;
356}
357
04db6465 358static int __maybe_unused tlan_resume(struct device *dev_d)
fa6d5d4f 359{
04db6465 360 struct net_device *dev = dev_get_drvdata(dev_d);
fa6d5d4f
SA		 361 netif_device_attach(dev);
362
363 if (netif_running(dev))
364 tlan_start(dev);
365
366 return 0;
367}
368
04db6465 369static SIMPLE_DEV_PM_OPS(tlan_pm_ops, tlan_suspend, tlan_resume);
fa6d5d4f 370
1da177e4
LT		 371static struct pci_driver tlan_driver = {
372 .name = "tlan",
373 .id_table = tlan_pci_tbl,
374 .probe = tlan_init_one,
36915876 375 .remove = tlan_remove_one,
04db6465 376 .driver.pm = &tlan_pm_ops,
1da177e4
LT		 377};
378
379static int __init tlan_probe(void)
380{
6c04a515 381 int rc = -ENODEV;
6aa20a22 382
50624aab 383 pr_info("%s", tlan_banner);
6aa20a22 384
1da177e4 385 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
6aa20a22 386
1da177e4
LT		 387 /* Use new style PCI probing. Now the kernel will
388 do most of this for us */
6c04a515
LP		 389 rc = pci_register_driver(&tlan_driver);
390
391 if (rc != 0) {
50624aab 392 pr_err("Could not register pci driver\n");
6c04a515
LP		 393 goto err_out_pci_free;
394 }
1da177e4
LT		 395
396 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
c659c38b 397 tlan_eisa_probe();
6aa20a22 398
50624aab
JP		 399 pr_info("%d device%s installed, PCI: %d EISA: %d\n",
400 tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
401 tlan_have_pci, tlan_have_eisa);
1da177e4 402
c659c38b 403 if (tlan_devices_installed == 0) {
6c04a515
LP		 404 rc = -ENODEV;
405 goto err_out_pci_unreg;
1da177e4
LT		 406 }
407 return 0;
6c04a515
LP		 408
409err_out_pci_unreg:
410 pci_unregister_driver(&tlan_driver);
411err_out_pci_free:
6c04a515 412 return rc;
1da177e4 413}
6aa20a22 414
1da177e4 415
36915876 416static int tlan_init_one(struct pci_dev *pdev,
c659c38b 417 const struct pci_device_id *ent)
1da177e4 418{
c659c38b 419 return tlan_probe1(pdev, -1, -1, 0, ent);
1da177e4
LT		 420}
421
422
423/*
c659c38b
SA		 424***************************************************************
425* tlan_probe1
426*
427* Returns:
428* 0 on success, error code on error
429* Parms:
430* none
431*
432* The name is lower case to fit in with all the rest of
433* the netcard_probe names. This function looks for
434* another TLan based adapter, setting it up with the
435* allocated device struct if one is found.
436* tlan_probe has been ported to the new net API and
437* now allocates its own device structure. This function
438* is also used by modules.
439*
440**************************************************************/
441
1dd06ae8
GKH		 442static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
443 const struct pci_device_id *ent)
1da177e4
LT		 444{
445
446 struct net_device *dev;
c659c38b 447 struct tlan_priv *priv;
1da177e4
LT		 448 u16 device_id;
449 int reg, rc = -ENODEV;
450
ad9f6713 451#ifdef CONFIG_PCI
1da177e4
LT		 452 if (pdev) {
453 rc = pci_enable_device(pdev);
454 if (rc)
455 return rc;
456
c659c38b 457 rc = pci_request_regions(pdev, tlan_signature);
1da177e4 458 if (rc) {
50624aab 459 pr_err("Could not reserve IO regions\n");
1da177e4
LT		 460 goto err_out;
461 }
462 }
ad9f6713 463#endif /* CONFIG_PCI */
1da177e4 464
c659c38b 465 dev = alloc_etherdev(sizeof(struct tlan_priv));
1da177e4 466 if (dev == NULL) {
1da177e4
LT		 467 rc = -ENOMEM;
468 goto err_out_regions;
469 }
1da177e4 470 SET_NETDEV_DEV(dev, &pdev->dev);
6aa20a22 471
1da177e4
LT		 472 priv = netdev_priv(dev);
473
c659c38b 474 priv->pci_dev = pdev;
c4028958 475 priv->dev = dev;
6aa20a22 476
1da177e4
LT		 477 /* Is this a PCI device? */
478 if (pdev) {
c659c38b 479 u32 pci_io_base = 0;
1da177e4
LT		 480
481 priv->adapter = &board_info[ent->driver_data];
482
9720bae3 483 rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
1da177e4 484 if (rc) {
50624aab 485 pr_err("No suitable PCI mapping available\n");
1da177e4
LT		 486 goto err_out_free_dev;
487 }
488
c659c38b 489 for (reg = 0; reg <= 5; reg++) {
1da177e4
LT		 490 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
491 pci_io_base = pci_resource_start(pdev, reg);
c659c38b
SA		 492 TLAN_DBG(TLAN_DEBUG_GNRL,
493 "IO mapping is available at %x.\n",
494 pci_io_base);
1da177e4
LT		 495 break;
496 }
497 }
498 if (!pci_io_base) {
50624aab 499 pr_err("No IO mappings available\n");
1da177e4
LT		 500 rc = -EIO;
501 goto err_out_free_dev;
502 }
6aa20a22 503
1da177e4
LT		 504 dev->base_addr = pci_io_base;
505 dev->irq = pdev->irq;
c659c38b 506 priv->adapter_rev = pdev->revision;
1da177e4
LT		 507 pci_set_master(pdev);
508 pci_set_drvdata(pdev, dev);
509
510 } else { /* EISA card */
511 /* This is a hack. We need to know which board structure
512 * is suited for this adapter */
513 device_id = inw(ioaddr + EISA_ID2);
1da177e4 514 if (device_id == 0x20F1) {
c659c38b
SA		 515 priv->adapter = &board_info[13]; /* NetFlex-3/E */
516 priv->adapter_rev = 23; /* TLAN 2.3 */
1da177e4
LT		 517 } else {
518 priv->adapter = &board_info[14];
c659c38b 519 priv->adapter_rev = 10; /* TLAN 1.0 */
1da177e4
LT		 520 }
521 dev->base_addr = ioaddr;
522 dev->irq = irq;
523 }
524
525 /* Kernel parameters */
526 if (dev->mem_start) {
527 priv->aui = dev->mem_start & 0x01;
dfc2c0a6
SH		 528 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
529 : (dev->mem_start & 0x06) >> 1;
530 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
531 : (dev->mem_start & 0x18) >> 3;
6aa20a22 532
c659c38b 533 if (priv->speed == 0x1)
1da177e4 534 priv->speed = TLAN_SPEED_10;
c659c38b 535 else if (priv->speed == 0x2)
1da177e4 536 priv->speed = TLAN_SPEED_100;
c659c38b 537
1da177e4
LT		 538 debug = priv->debug = dev->mem_end;
539 } else {
540 priv->aui = aui[boards_found];
541 priv->speed = speed[boards_found];
542 priv->duplex = duplex[boards_found];
543 priv->debug = debug;
544 }
6aa20a22 545
1da177e4
LT		 546 /* This will be used when we get an adapter error from
547 * within our irq handler */
c659c38b 548 INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
1da177e4
LT		 549
550 spin_lock_init(&priv->lock);
6aa20a22 551
c659c38b 552 rc = tlan_init(dev);
1da177e4 553 if (rc) {
50624aab 554 pr_err("Could not set up device\n");
1da177e4
LT		 555 goto err_out_free_dev;
556 }
557
558 rc = register_netdev(dev);
559 if (rc) {
50624aab 560 pr_err("Could not register device\n");
1da177e4
LT		 561 goto err_out_uninit;
562 }
563
6aa20a22 564
c659c38b 565 tlan_devices_installed++;
1da177e4 566 boards_found++;
6aa20a22 567
1da177e4
LT		 568 /* pdev is NULL if this is an EISA device */
569 if (pdev)
570 tlan_have_pci++;
571 else {
c659c38b
SA		 572 priv->next_device = tlan_eisa_devices;
573 tlan_eisa_devices = dev;
1da177e4
LT		 574 tlan_have_eisa++;
575 }
6aa20a22 576
50624aab
JP		 577 netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
578 (int)dev->irq,
579 (int)dev->base_addr,
580 priv->adapter->device_label,
581 priv->adapter_rev);
1da177e4
LT		 582 return 0;
583
584err_out_uninit:
9720bae3
CJ		 585 dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
586 priv->dma_storage, priv->dma_storage_dma);
1da177e4
LT		 587err_out_free_dev:
588 free_netdev(dev);
589err_out_regions:
590#ifdef CONFIG_PCI
591 if (pdev)
592 pci_release_regions(pdev);
1da177e4 593err_out:
1e09c106 594#endif
1da177e4
LT		 595 if (pdev)
596 pci_disable_device(pdev);
597 return rc;
598}
599
600
c659c38b 601static void tlan_eisa_cleanup(void)
1da177e4
LT		 602{
603 struct net_device *dev;
c659c38b 604 struct tlan_priv *priv;
6aa20a22 605
c659c38b
SA		 606 while (tlan_have_eisa) {
607 dev = tlan_eisa_devices;
1da177e4 608 priv = netdev_priv(dev);
c659c38b 609 if (priv->dma_storage) {
9720bae3
CJ		 610 dma_free_coherent(&priv->pci_dev->dev, priv->dma_size,
611 priv->dma_storage,
612 priv->dma_storage_dma);
1da177e4 613 }
c659c38b
SA		 614 release_region(dev->base_addr, 0x10);
615 unregister_netdev(dev);
616 tlan_eisa_devices = priv->next_device;
617 free_netdev(dev);
1da177e4
LT		 618 tlan_have_eisa--;
619 }
620}
6aa20a22
JG		 621
622
1da177e4
LT		 623static void __exit tlan_exit(void)
624{
625 pci_unregister_driver(&tlan_driver);
626
627 if (tlan_have_eisa)
c659c38b 628 tlan_eisa_cleanup();
1da177e4 629
1da177e4
LT		 630}
631
632
633/* Module loading/unloading */
634module_init(tlan_probe);
635module_exit(tlan_exit);
636
637
638
c659c38b
SA		 639/**************************************************************
640 * tlan_eisa_probe
641 *
642 * Returns: 0 on success, 1 otherwise
643 *
644 * Parms: None
645 *
646 *
647 * This functions probes for EISA devices and calls
648 * TLan_probe1 when one is found.
649 *
650 *************************************************************/
1da177e4 651
c659c38b 652static void __init tlan_eisa_probe(void)
1da177e4 653{
c659c38b 654 long ioaddr;
c659c38b 655 int irq;
1da177e4
LT		 656 u16 device_id;
657
6aa20a22 658 if (!EISA_bus) {
1da177e4
LT		 659 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
660 return;
661 }
6aa20a22 662
1da177e4
LT		 663 /* Loop through all slots of the EISA bus */
664 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
6aa20a22 665
c659c38b
SA		 666 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
667 (int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
668 TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
669 (int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
1da177e4
LT		 670
671
c659c38b
SA		 672 TLAN_DBG(TLAN_DEBUG_PROBE,
673 "Probing for EISA adapter at IO: 0x%4x : ",
674 (int) ioaddr);
675 if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
1da177e4
LT		 676 goto out;
677
6aa20a22 678 if (inw(ioaddr + EISA_ID) != 0x110E) {
1da177e4
LT		 679 release_region(ioaddr, 0x10);
680 goto out;
681 }
6aa20a22 682
1da177e4 683 device_id = inw(ioaddr + EISA_ID2);
6aa20a22 684 if (device_id != 0x20F1 && device_id != 0x40F1) {
c659c38b 685 release_region(ioaddr, 0x10);
1da177e4
LT		 686 goto out;
687 }
6aa20a22 688
c659c38b
SA		 689 /* check if adapter is enabled */
690 if (inb(ioaddr + EISA_CR) != 0x1) {
691 release_region(ioaddr, 0x10);
1da177e4
LT		 692 goto out2;
693 }
6aa20a22
JG		 694
695 if (debug == 0x10)
50624aab 696 pr_info("Found one\n");
1da177e4
LT		 697
698
699 /* Get irq from board */
c659c38b
SA		 700 switch (inb(ioaddr + 0xcc0)) {
701 case(0x10):
702 irq = 5;
703 break;
704 case(0x20):
705 irq = 9;
706 break;
707 case(0x40):
708 irq = 10;
709 break;
710 case(0x80):
711 irq = 11;
712 break;
713 default:
714 goto out;
6aa20a22
JG		 715 }
716
717
1da177e4 718 /* Setup the newly found eisa adapter */
7c8c0291 719 tlan_probe1(NULL, ioaddr, irq, 12, NULL);
1da177e4 720 continue;
6aa20a22 721
c659c38b
SA		 722out:
723 if (debug == 0x10)
50624aab 724 pr_info("None found\n");
c659c38b 725 continue;
1da177e4 726
c659c38b
SA		 727out2:
728 if (debug == 0x10)
50624aab 729 pr_info("Card found but it is not enabled, skipping\n");
c659c38b 730 continue;
6aa20a22 731
1da177e4
LT		 732 }
733
c659c38b 734}
1da177e4
LT		 735
736#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 737static void tlan_poll(struct net_device *dev)
1da177e4
LT		 738{
739 disable_irq(dev->irq);
c659c38b 740 tlan_handle_interrupt(dev->irq, dev);
1da177e4
LT		 741 enable_irq(dev->irq);
742}
743#endif
744
c659c38b
SA		 745static const struct net_device_ops tlan_netdev_ops = {
746 .ndo_open = tlan_open,
747 .ndo_stop = tlan_close,
748 .ndo_start_xmit = tlan_start_tx,
749 .ndo_tx_timeout = tlan_tx_timeout,
750 .ndo_get_stats = tlan_get_stats,
afc4b13d 751 .ndo_set_rx_mode = tlan_set_multicast_list,
a7605370 752 .ndo_eth_ioctl = tlan_ioctl,
c659c38b 753 .ndo_set_mac_address = eth_mac_addr,
391c5e6e
SH		 754 .ndo_validate_addr = eth_validate_addr,
755#ifdef CONFIG_NET_POLL_CONTROLLER
c659c38b 756 .ndo_poll_controller = tlan_poll,
391c5e6e
SH		 757#endif
758};
6aa20a22 759
e36124d4
OZ		 760static void tlan_get_drvinfo(struct net_device *dev,
761 struct ethtool_drvinfo *info)
762{
763 struct tlan_priv *priv = netdev_priv(dev);
764
765 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
766 if (priv->pci_dev)
767 strlcpy(info->bus_info, pci_name(priv->pci_dev),
768 sizeof(info->bus_info));
769 else
770 strlcpy(info->bus_info, "EISA", sizeof(info->bus_info));
e36124d4
OZ		 771}
772
773static int tlan_get_eeprom_len(struct net_device *dev)
774{
775 return TLAN_EEPROM_SIZE;
776}
1da177e4 777
e36124d4
OZ		 778static int tlan_get_eeprom(struct net_device *dev,
779 struct ethtool_eeprom *eeprom, u8 *data)
780{
781 int i;
782
783 for (i = 0; i < TLAN_EEPROM_SIZE; i++)
784 if (tlan_ee_read_byte(dev, i, &data[i]))
785 return -EIO;
786
787 return 0;
788}
789
790static const struct ethtool_ops tlan_ethtool_ops = {
791 .get_drvinfo = tlan_get_drvinfo,
792 .get_link = ethtool_op_get_link,
793 .get_eeprom_len = tlan_get_eeprom_len,
794 .get_eeprom = tlan_get_eeprom,
795};
1da177e4 796
c659c38b
SA		 797/***************************************************************
798 * tlan_init
799 *
800 * Returns:
801 * 0 on success, error code otherwise.
802 * Parms:
803 * dev The structure of the device to be
804 * init'ed.
805 *
806 * This function completes the initialization of the
807 * device structure and driver. It reserves the IO
808 * addresses, allocates memory for the lists and bounce
809 * buffers, retrieves the MAC address from the eeprom
810 * and assignes the device's methods.
811 *
812 **************************************************************/
813
814static int tlan_init(struct net_device *dev)
1da177e4
LT		 815{
816 int dma_size;
c659c38b 817 int err;
1da177e4 818 int i;
c659c38b 819 struct tlan_priv *priv;
1da177e4
LT		 820
821 priv = netdev_priv(dev);
6aa20a22 822
c659c38b
SA		 823 dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
824 * (sizeof(struct tlan_list));
9720bae3
CJ		 825 priv->dma_storage = dma_alloc_coherent(&priv->pci_dev->dev, dma_size,
826 &priv->dma_storage_dma, GFP_KERNEL);
c659c38b
SA		 827 priv->dma_size = dma_size;
828
829 if (priv->dma_storage == NULL) {
50624aab 830 pr_err("Could not allocate lists and buffers for %s\n",
c659c38b 831 dev->name);
1da177e4
LT		 832 return -ENOMEM;
833 }
c659c38b
SA		 834 priv->rx_list = (struct tlan_list *)
835 ALIGN((unsigned long)priv->dma_storage, 8);
836 priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
837 priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
838 priv->tx_list_dma =
839 priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
93e16847 840
1da177e4 841 err = 0;
59be4ad6 842 for (i = 0; i < ETH_ALEN; i++)
c659c38b
SA		 843 err |= tlan_ee_read_byte(dev,
844 (u8) priv->adapter->addr_ofs + i,
845 (u8 *) &dev->dev_addr[i]);
846 if (err) {
50624aab
JP		 847 pr_err("%s: Error reading MAC from eeprom: %d\n",
848 dev->name, err);
1da177e4 849 }
59be4ad6
OZ		 850 /* Olicom OC-2325/OC-2326 have the address byte-swapped */
851 if (priv->adapter->addr_ofs == 0xf8) {
852 for (i = 0; i < ETH_ALEN; i += 2) {
853 char tmp = dev->dev_addr[i];
854 dev->dev_addr[i] = dev->dev_addr[i + 1];
855 dev->dev_addr[i + 1] = tmp;
856 }
857 }
1da177e4
LT		 858
859 netif_carrier_off(dev);
860
861 /* Device methods */
c659c38b 862 dev->netdev_ops = &tlan_netdev_ops;
e36124d4 863 dev->ethtool_ops = &tlan_ethtool_ops;
1da177e4
LT		 864 dev->watchdog_timeo = TX_TIMEOUT;
865
866 return 0;
867
c659c38b 868}
1da177e4
LT		 869
870
871
872
c659c38b
SA		 873/***************************************************************
874 * tlan_open
875 *
876 * Returns:
877 * 0 on success, error code otherwise.
878 * Parms:
879 * dev Structure of device to be opened.
880 *
881 * This routine puts the driver and TLAN adapter in a
882 * state where it is ready to send and receive packets.
883 * It allocates the IRQ, resets and brings the adapter
884 * out of reset, and allows interrupts. It also delays
885 * the startup for autonegotiation or sends a Rx GO
886 * command to the adapter, as appropriate.
887 *
888 **************************************************************/
1da177e4 889
c659c38b 890static int tlan_open(struct net_device *dev)
1da177e4 891{
c659c38b 892 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 893 int err;
6aa20a22 894
c659c38b
SA		 895 priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
896 err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
897 dev->name, dev);
6aa20a22 898
c659c38b 899 if (err) {
50624aab
JP		 900 netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
901 dev->irq);
1da177e4
LT		 902 return err;
903 }
6aa20a22 904
0010e3f8
KC		 905 timer_setup(&priv->timer, NULL, 0);
906 timer_setup(&priv->media_timer, tlan_phy_monitor, 0);
6aa20a22 907
fa6d5d4f 908 tlan_start(dev);
1da177e4 909
c659c38b
SA		 910 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
911 dev->name, priv->tlan_rev);
1da177e4
LT		 912
913 return 0;
914
c659c38b 915}
1da177e4
LT		 916
917
918
c659c38b
SA		 919/**************************************************************
920 * tlan_ioctl
921 *
922 * Returns:
923 * 0 on success, error code otherwise
924 * Params:
925 * dev structure of device to receive ioctl.
926 *
927 * rq ifreq structure to hold userspace data.
928 *
929 * cmd ioctl command.
930 *
931 *
932 *************************************************************/
1da177e4 933
c659c38b 934static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1da177e4 935{
c659c38b 936 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 937 struct mii_ioctl_data *data = if_mii(rq);
c659c38b 938 u32 phy = priv->phy[priv->phy_num];
6aa20a22 939
c659c38b 940 if (!priv->phy_online)
1da177e4
LT		 941 return -EAGAIN;
942
c659c38b
SA		 943 switch (cmd) {
944 case SIOCGMIIPHY: /* get address of MII PHY in use. */
945 data->phy_id = phy;
df561f66 946 fallthrough;
1da177e4
LT		 947
948
c659c38b
SA		 949 case SIOCGMIIREG: /* read MII PHY register. */
950 tlan_mii_read_reg(dev, data->phy_id & 0x1f,
951 data->reg_num & 0x1f, &data->val_out);
952 return 0;
6aa20a22 953
1da177e4 954
c659c38b
SA		 955 case SIOCSMIIREG: /* write MII PHY register. */
956 tlan_mii_write_reg(dev, data->phy_id & 0x1f,
957 data->reg_num & 0x1f, data->val_in);
958 return 0;
959 default:
960 return -EOPNOTSUPP;
1da177e4 961 }
c659c38b 962}
1da177e4
LT		 963
964
c659c38b
SA		 965/***************************************************************
966 * tlan_tx_timeout
967 *
968 * Returns: nothing
969 *
970 * Params:
971 * dev structure of device which timed out
972 * during transmit.
973 *
974 **************************************************************/
1da177e4 975
0290bd29 976static void tlan_tx_timeout(struct net_device *dev, unsigned int txqueue)
1da177e4 977{
6aa20a22 978
c659c38b 979 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
6aa20a22 980
1da177e4 981 /* Ok so we timed out, lets see what we can do about it...*/
c659c38b
SA		 982 tlan_free_lists(dev);
983 tlan_reset_lists(dev);
984 tlan_read_and_clear_stats(dev, TLAN_IGNORE);
985 tlan_reset_adapter(dev);
860e9538 986 netif_trans_update(dev); /* prevent tx timeout */
c659c38b 987 netif_wake_queue(dev);
1da177e4
LT		 988
989}
6aa20a22 990
1da177e4 991
c659c38b
SA		 992/***************************************************************
993 * tlan_tx_timeout_work
994 *
995 * Returns: nothing
996 *
997 * Params:
998 * work work item of device which timed out
999 *
1000 **************************************************************/
c4028958 1001
c659c38b 1002static void tlan_tx_timeout_work(struct work_struct *work)
c4028958 1003{
c659c38b
SA		 1004 struct tlan_priv *priv =
1005 container_of(work, struct tlan_priv, tlan_tqueue);
c4028958 1006
0290bd29 1007 tlan_tx_timeout(priv->dev, UINT_MAX);
c4028958
DH		 1008}
1009
1010
1da177e4 1011
c659c38b
SA		 1012/***************************************************************
1013 * tlan_start_tx
1014 *
1015 * Returns:
1016 * 0 on success, non-zero on failure.
1017 * Parms:
1018 * skb A pointer to the sk_buff containing the
1019 * frame to be sent.
1020 * dev The device to send the data on.
1021 *
1022 * This function adds a frame to the Tx list to be sent
1023 * ASAP. First it verifies that the adapter is ready and
1024 * there is room in the queue. Then it sets up the next
1025 * available list, copies the frame to the corresponding
1026 * buffer. If the adapter Tx channel is idle, it gives
1027 * the adapter a Tx Go command on the list, otherwise it
1028 * sets the forward address of the previous list to point
1029 * to this one. Then it frees the sk_buff.
1030 *
1031 **************************************************************/
1032
1033static netdev_tx_t tlan_start_tx(struct sk_buff *skb, struct net_device *dev)
1da177e4 1034{
c659c38b 1035 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1036 dma_addr_t tail_list_phys;
c659c38b 1037 struct tlan_list *tail_list;
1da177e4 1038 unsigned long flags;
8953f128 1039 unsigned int txlen;
1da177e4 1040
c659c38b
SA		 1041 if (!priv->phy_online) {
1042 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1043 dev->name);
1da177e4 1044 dev_kfree_skb_any(skb);
6ed10654 1045 return NETDEV_TX_OK;
1da177e4
LT		 1046 }
1047
41873e9a 1048 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
6ed10654 1049 return NETDEV_TX_OK;
8953f128 1050 txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE);
41873e9a 1051
c659c38b
SA		 1052 tail_list = priv->tx_list + priv->tx_tail;
1053 tail_list_phys =
1054 priv->tx_list_dma + sizeof(struct tlan_list)*priv->tx_tail;
6aa20a22 1055
c659c38b
SA		 1056 if (tail_list->c_stat != TLAN_CSTAT_UNUSED) {
1057 TLAN_DBG(TLAN_DEBUG_TX,
1058 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1059 dev->name, priv->tx_head, priv->tx_tail);
1da177e4 1060 netif_stop_queue(dev);
c659c38b 1061 priv->tx_busy_count++;
5b548140 1062 return NETDEV_TX_BUSY;
1da177e4
LT		 1063 }
1064
1065 tail_list->forward = 0;
1066
9720bae3 1067 tail_list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
5eeabf51 1068 skb->data, txlen,
9720bae3 1069 DMA_TO_DEVICE);
c659c38b 1070 tlan_store_skb(tail_list, skb);
1da177e4 1071
c659c38b 1072 tail_list->frame_size = (u16) txlen;
8953f128 1073 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen;
41873e9a
SH		 1074 tail_list->buffer[1].count = 0;
1075 tail_list->buffer[1].address = 0;
1da177e4
LT		 1076
1077 spin_lock_irqsave(&priv->lock, flags);
c659c38b
SA		 1078 tail_list->c_stat = TLAN_CSTAT_READY;
1079 if (!priv->tx_in_progress) {
1080 priv->tx_in_progress = 1;
1081 TLAN_DBG(TLAN_DEBUG_TX,
1082 "TRANSMIT: Starting TX on buffer %d\n",
1083 priv->tx_tail);
1084 outl(tail_list_phys, dev->base_addr + TLAN_CH_PARM);
1085 outl(TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD);
1da177e4 1086 } else {
c659c38b
SA		 1087 TLAN_DBG(TLAN_DEBUG_TX,
1088 "TRANSMIT: Adding buffer %d to TX channel\n",
1089 priv->tx_tail);
1090 if (priv->tx_tail == 0) {
1091 (priv->tx_list + (TLAN_NUM_TX_LISTS - 1))->forward
dfc2c0a6 1092 = tail_list_phys;
1da177e4 1093 } else {
c659c38b 1094 (priv->tx_list + (priv->tx_tail - 1))->forward
dfc2c0a6 1095 = tail_list_phys;
1da177e4
LT		 1096 }
1097 }
1098 spin_unlock_irqrestore(&priv->lock, flags);
1099
c659c38b 1100 CIRC_INC(priv->tx_tail, TLAN_NUM_TX_LISTS);
1da177e4 1101
6ed10654 1102 return NETDEV_TX_OK;
1da177e4 1103
c659c38b 1104}
1da177e4
LT		 1105
1106
1107
1108
c659c38b
SA		 1109/***************************************************************
1110 * tlan_handle_interrupt
1111 *
1112 * Returns:
1113 * Nothing
1114 * Parms:
1115 * irq The line on which the interrupt
1116 * occurred.
1117 * dev_id A pointer to the device assigned to
1118 * this irq line.
1119 *
1120 * This function handles an interrupt generated by its
1121 * assigned TLAN adapter. The function deactivates
1122 * interrupts on its adapter, records the type of
1123 * interrupt, executes the appropriate subhandler, and
1124 * acknowdges the interrupt to the adapter (thus
1125 * re-enabling adapter interrupts.
1126 *
1127 **************************************************************/
1da177e4 1128
c659c38b 1129static irqreturn_t tlan_handle_interrupt(int irq, void *dev_id)
1da177e4 1130{
a3ccc789 1131 struct net_device *dev = dev_id;
c659c38b 1132 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1133 u16 host_int;
a3ccc789 1134 u16 type;
1da177e4
LT		 1135
1136 spin_lock(&priv->lock);
1137
c659c38b
SA		 1138 host_int = inw(dev->base_addr + TLAN_HOST_INT);
1139 type = (host_int & TLAN_HI_IT_MASK) >> 2;
1140 if (type) {
a3ccc789
SH		 1141 u32 ack;
1142 u32 host_cmd;
1da177e4 1143
c659c38b
SA		 1144 outw(host_int, dev->base_addr + TLAN_HOST_INT);
1145 ack = tlan_int_vector[type](dev, host_int);
1da177e4 1146
c659c38b
SA		 1147 if (ack) {
1148 host_cmd = TLAN_HC_ACK | ack | (type << 18);
1149 outl(host_cmd, dev->base_addr + TLAN_HOST_CMD);
a3ccc789 1150 }
1da177e4
LT		 1151 }
1152
1153 spin_unlock(&priv->lock);
1154
a3ccc789 1155 return IRQ_RETVAL(type);
c659c38b 1156}
1da177e4
LT		 1157
1158
1159
1160
c659c38b
SA		 1161/***************************************************************
1162 * tlan_close
1163 *
1164 * Returns:
1165 * An error code.
1166 * Parms:
1167 * dev The device structure of the device to
1168 * close.
1169 *
1170 * This function shuts down the adapter. It records any
1171 * stats, puts the adapter into reset state, deactivates
1172 * its time as needed, and frees the irq it is using.
1173 *
1174 **************************************************************/
1da177e4 1175
c659c38b 1176static int tlan_close(struct net_device *dev)
1da177e4 1177{
fa6d5d4f 1178 tlan_stop(dev);
6aa20a22 1179
c659c38b
SA		 1180 free_irq(dev->irq, dev);
1181 tlan_free_lists(dev);
1182 TLAN_DBG(TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name);
1da177e4
LT		 1183
1184 return 0;
1185
c659c38b 1186}
1da177e4
LT		 1187
1188
1189
1190
c659c38b
SA		 1191/***************************************************************
1192 * tlan_get_stats
1193 *
1194 * Returns:
1195 * A pointer to the device's statistics structure.
1196 * Parms:
1197 * dev The device structure to return the
1198 * stats for.
1199 *
1200 * This function updates the devices statistics by reading
1201 * the TLAN chip's onboard registers. Then it returns the
1202 * address of the statistics structure.
1203 *
1204 **************************************************************/
1da177e4 1205
c659c38b 1206static struct net_device_stats *tlan_get_stats(struct net_device *dev)
1da177e4 1207{
c659c38b 1208 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1209 int i;
1210
1211 /* Should only read stats if open ? */
c659c38b 1212 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4 1213
c659c38b
SA		 1214 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1215 priv->rx_eoc_count);
1216 TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1217 priv->tx_busy_count);
1218 if (debug & TLAN_DEBUG_GNRL) {
1219 tlan_print_dio(dev->base_addr);
1220 tlan_phy_print(dev);
1da177e4 1221 }
c659c38b
SA		 1222 if (debug & TLAN_DEBUG_LIST) {
1223 for (i = 0; i < TLAN_NUM_RX_LISTS; i++)
1224 tlan_print_list(priv->rx_list + i, "RX", i);
1225 for (i = 0; i < TLAN_NUM_TX_LISTS; i++)
1226 tlan_print_list(priv->tx_list + i, "TX", i);
1da177e4 1227 }
6aa20a22 1228
f8f31544 1229 return &dev->stats;
1da177e4 1230
c659c38b 1231}
1da177e4
LT		 1232
1233
1234
1235
c659c38b
SA		 1236/***************************************************************
1237 * tlan_set_multicast_list
1238 *
1239 * Returns:
1240 * Nothing
1241 * Parms:
1242 * dev The device structure to set the
1243 * multicast list for.
1244 *
1245 * This function sets the TLAN adaptor to various receive
1246 * modes. If the IFF_PROMISC flag is set, promiscuous
1247 * mode is acitviated. Otherwise, promiscuous mode is
1248 * turned off. If the IFF_ALLMULTI flag is set, then
1249 * the hash table is set to receive all group addresses.
1250 * Otherwise, the first three multicast addresses are
1251 * stored in AREG_1-3, and the rest are selected via the
1252 * hash table, as necessary.
1253 *
1254 **************************************************************/
1da177e4 1255
c659c38b 1256static void tlan_set_multicast_list(struct net_device *dev)
6aa20a22 1257{
22bedad3 1258 struct netdev_hw_addr *ha;
1da177e4
LT		 1259 u32 hash1 = 0;
1260 u32 hash2 = 0;
1261 int i;
1262 u32 offset;
1263 u8 tmp;
1264
c659c38b
SA		 1265 if (dev->flags & IFF_PROMISC) {
1266 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1267 tlan_dio_write8(dev->base_addr,
1268 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF);
1da177e4 1269 } else {
c659c38b
SA		 1270 tmp = tlan_dio_read8(dev->base_addr, TLAN_NET_CMD);
1271 tlan_dio_write8(dev->base_addr,
1272 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF);
1273 if (dev->flags & IFF_ALLMULTI) {
1274 for (i = 0; i < 3; i++)
1275 tlan_set_mac(dev, i + 1, NULL);
1276 tlan_dio_write32(dev->base_addr, TLAN_HASH_1,
1277 0xffffffff);
1278 tlan_dio_write32(dev->base_addr, TLAN_HASH_2,
1279 0xffffffff);
1da177e4 1280 } else {
567ec874 1281 i = 0;
22bedad3 1282 netdev_for_each_mc_addr(ha, dev) {
c659c38b
SA		 1283 if (i < 3) {
1284 tlan_set_mac(dev, i + 1,
22bedad3 1285 (char *) &ha->addr);
1da177e4 1286 } else {
c659c38b
SA		 1287 offset =
1288 tlan_hash_func((u8 *)&ha->addr);
1289 if (offset < 32)
1290 hash1 |= (1 << offset);
1da177e4 1291 else
c659c38b 1292 hash2 |= (1 << (offset - 32));
1da177e4 1293 }
567ec874 1294 i++;
1da177e4 1295 }
c659c38b
SA		 1296 for ( ; i < 3; i++)
1297 tlan_set_mac(dev, i + 1, NULL);
1298 tlan_dio_write32(dev->base_addr, TLAN_HASH_1, hash1);
1299 tlan_dio_write32(dev->base_addr, TLAN_HASH_2, hash2);
1da177e4
LT		 1300 }
1301 }
1302
c659c38b 1303}
1da177e4
LT		 1304
1305
1306
1307/*****************************************************************************
1308******************************************************************************
1309
c659c38b 1310ThunderLAN driver interrupt vectors and table
1da177e4 1311
c659c38b
SA		 1312please see chap. 4, "Interrupt Handling" of the "ThunderLAN
1313Programmer's Guide" for more informations on handling interrupts
1314generated by TLAN based adapters.
1da177e4
LT		 1315
1316******************************************************************************
1317*****************************************************************************/
1318
1319
1da177e4
LT		 1320
1321
c659c38b
SA		 1322/***************************************************************
1323 * tlan_handle_tx_eof
1324 *
1325 * Returns:
1326 * 1
1327 * Parms:
1328 * dev Device assigned the IRQ that was
1329 * raised.
1330 * host_int The contents of the HOST_INT
1331 * port.
1332 *
1333 * This function handles Tx EOF interrupts which are raised
1334 * by the adapter when it has completed sending the
1335 * contents of a buffer. If detemines which list/buffer
1336 * was completed and resets it. If the buffer was the last
1337 * in the channel (EOC), then the function checks to see if
1338 * another buffer is ready to send, and if so, sends a Tx
1339 * Go command. Finally, the driver activates/continues the
1340 * activity LED.
1341 *
1342 **************************************************************/
1343
1344static u32 tlan_handle_tx_eof(struct net_device *dev, u16 host_int)
1da177e4 1345{
c659c38b 1346 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1347 int eoc = 0;
c659c38b 1348 struct tlan_list *head_list;
1da177e4
LT		 1349 dma_addr_t head_list_phys;
1350 u32 ack = 0;
c659c38b 1351 u16 tmp_c_stat;
6aa20a22 1352
c659c38b
SA		 1353 TLAN_DBG(TLAN_DEBUG_TX,
1354 "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1355 priv->tx_head, priv->tx_tail);
1356 head_list = priv->tx_list + priv->tx_head;
1da177e4 1357
c659c38b
SA		 1358 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1359 && (ack < 255)) {
1360 struct sk_buff *skb = tlan_get_skb(head_list);
5eeabf51 1361
1da177e4 1362 ack++;
9720bae3
CJ		 1363 dma_unmap_single(&priv->pci_dev->dev,
1364 head_list->buffer[0].address,
1365 max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
1366 DMA_TO_DEVICE);
5eeabf51
SA		 1367 dev_kfree_skb_any(skb);
1368 head_list->buffer[8].address = 0;
1369 head_list->buffer[9].address = 0;
6aa20a22 1370
c659c38b 1371 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1372 eoc = 1;
6aa20a22 1373
c659c38b 1374 dev->stats.tx_bytes += head_list->frame_size;
1da177e4 1375
c659c38b 1376 head_list->c_stat = TLAN_CSTAT_UNUSED;
6aa20a22 1377 netif_start_queue(dev);
c659c38b
SA		 1378 CIRC_INC(priv->tx_head, TLAN_NUM_TX_LISTS);
1379 head_list = priv->tx_list + priv->tx_head;
1da177e4
LT		 1380 }
1381
1382 if (!ack)
50624aab
JP		 1383 netdev_info(dev,
1384 "Received interrupt for uncompleted TX frame\n");
c659c38b
SA		 1385
1386 if (eoc) {
1387 TLAN_DBG(TLAN_DEBUG_TX,
1388 "TRANSMIT: handling TX EOC (Head=%d Tail=%d)\n",
1389 priv->tx_head, priv->tx_tail);
1390 head_list = priv->tx_list + priv->tx_head;
1391 head_list_phys = priv->tx_list_dma
1392 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1393 if ((head_list->c_stat & TLAN_CSTAT_READY)
1394 == TLAN_CSTAT_READY) {
c659c38b 1395 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1396 ack |= TLAN_HC_GO;
1397 } else {
c659c38b 1398 priv->tx_in_progress = 0;
1da177e4
LT		 1399 }
1400 }
6aa20a22 1401
c659c38b
SA		 1402 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1403 tlan_dio_write8(dev->base_addr,
1404 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1405 if (priv->timer.function == NULL) {
841b86f3 1406 priv->timer.function = tlan_timer;
c659c38b
SA		 1407 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1408 priv->timer_set_at = jiffies;
1409 priv->timer_type = TLAN_TIMER_ACTIVITY;
1410 add_timer(&priv->timer);
1411 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1412 priv->timer_set_at = jiffies;
1da177e4
LT		 1413 }
1414 }
1415
1416 return ack;
1417
c659c38b 1418}
1da177e4
LT		 1419
1420
1421
1422
c659c38b
SA		 1423/***************************************************************
1424 * TLan_HandleStatOverflow
1425 *
1426 * Returns:
1427 * 1
1428 * Parms:
1429 * dev Device assigned the IRQ that was
1430 * raised.
1431 * host_int The contents of the HOST_INT
1432 * port.
1433 *
1434 * This function handles the Statistics Overflow interrupt
1435 * which means that one or more of the TLAN statistics
1436 * registers has reached 1/2 capacity and needs to be read.
1437 *
1438 **************************************************************/
1da177e4 1439
c659c38b 1440static u32 tlan_handle_stat_overflow(struct net_device *dev, u16 host_int)
1da177e4 1441{
c659c38b 1442 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1da177e4
LT		 1443
1444 return 1;
1445
c659c38b
SA		 1446}
1447
1448
1449
1450
1451/***************************************************************
1452 * TLan_HandleRxEOF
1453 *
1454 * Returns:
1455 * 1
1456 * Parms:
1457 * dev Device assigned the IRQ that was
1458 * raised.
1459 * host_int The contents of the HOST_INT
1460 * port.
1461 *
1462 * This function handles the Rx EOF interrupt which
1463 * indicates a frame has been received by the adapter from
1464 * the net and the frame has been transferred to memory.
1465 * The function determines the bounce buffer the frame has
1466 * been loaded into, creates a new sk_buff big enough to
1467 * hold the frame, and sends it to protocol stack. It
1468 * then resets the used buffer and appends it to the end
1469 * of the list. If the frame was the last in the Rx
1470 * channel (EOC), the function restarts the receive channel
1471 * by sending an Rx Go command to the adapter. Then it
1472 * activates/continues the activity LED.
1473 *
1474 **************************************************************/
1475
1476static u32 tlan_handle_rx_eof(struct net_device *dev, u16 host_int)
1da177e4 1477{
c659c38b 1478 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1479 u32 ack = 0;
1480 int eoc = 0;
c659c38b 1481 struct tlan_list *head_list;
1da177e4 1482 struct sk_buff *skb;
c659c38b
SA		 1483 struct tlan_list *tail_list;
1484 u16 tmp_c_stat;
1da177e4
LT		 1485 dma_addr_t head_list_phys;
1486
c659c38b
SA		 1487 TLAN_DBG(TLAN_DEBUG_RX, "RECEIVE: handling RX EOF (Head=%d Tail=%d)\n",
1488 priv->rx_head, priv->rx_tail);
1489 head_list = priv->rx_list + priv->rx_head;
1490 head_list_phys =
1491 priv->rx_list_dma + sizeof(struct tlan_list)*priv->rx_head;
6aa20a22 1492
c659c38b
SA		 1493 while (((tmp_c_stat = head_list->c_stat) & TLAN_CSTAT_FRM_CMP)
1494 && (ack < 255)) {
1495 dma_addr_t frame_dma = head_list->buffer[0].address;
1496 u32 frame_size = head_list->frame_size;
5eeabf51
SA		 1497 struct sk_buff *new_skb;
1498
1da177e4 1499 ack++;
c659c38b 1500 if (tmp_c_stat & TLAN_CSTAT_EOC)
1da177e4 1501 eoc = 1;
6aa20a22 1502
89d71a66
ED		 1503 new_skb = netdev_alloc_skb_ip_align(dev,
1504 TLAN_MAX_FRAME_SIZE + 5);
c659c38b 1505 if (!new_skb)
5eeabf51 1506 goto drop_and_reuse;
6aa20a22 1507
c659c38b 1508 skb = tlan_get_skb(head_list);
9720bae3
CJ		 1509 dma_unmap_single(&priv->pci_dev->dev, frame_dma,
1510 TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
c659c38b 1511 skb_put(skb, frame_size);
1da177e4 1512
c659c38b 1513 dev->stats.rx_bytes += frame_size;
1da177e4 1514
c659c38b
SA		 1515 skb->protocol = eth_type_trans(skb, dev);
1516 netif_rx(skb);
6aa20a22 1517
c659c38b 1518 head_list->buffer[0].address =
9720bae3
CJ		 1519 dma_map_single(&priv->pci_dev->dev, new_skb->data,
1520 TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
93e16847 1521
c659c38b 1522 tlan_store_skb(head_list, new_skb);
dfc2c0a6 1523drop_and_reuse:
1da177e4 1524 head_list->forward = 0;
c659c38b
SA		 1525 head_list->c_stat = 0;
1526 tail_list = priv->rx_list + priv->rx_tail;
1da177e4
LT		 1527 tail_list->forward = head_list_phys;
1528
c659c38b
SA		 1529 CIRC_INC(priv->rx_head, TLAN_NUM_RX_LISTS);
1530 CIRC_INC(priv->rx_tail, TLAN_NUM_RX_LISTS);
1531 head_list = priv->rx_list + priv->rx_head;
1532 head_list_phys = priv->rx_list_dma
1533 + sizeof(struct tlan_list)*priv->rx_head;
1da177e4
LT		 1534 }
1535
1536 if (!ack)
50624aab
JP		 1537 netdev_info(dev,
1538 "Received interrupt for uncompleted RX frame\n");
c659c38b
SA		 1539
1540
1541 if (eoc) {
1542 TLAN_DBG(TLAN_DEBUG_RX,
1543 "RECEIVE: handling RX EOC (Head=%d Tail=%d)\n",
1544 priv->rx_head, priv->rx_tail);
1545 head_list = priv->rx_list + priv->rx_head;
1546 head_list_phys = priv->rx_list_dma
1547 + sizeof(struct tlan_list)*priv->rx_head;
1548 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1549 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1550 priv->rx_eoc_count++;
1da177e4
LT		 1551 }
1552
c659c38b
SA		 1553 if (priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED) {
1554 tlan_dio_write8(dev->base_addr,
1555 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
1556 if (priv->timer.function == NULL) {
841b86f3 1557 priv->timer.function = tlan_timer;
1da177e4 1558 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
c659c38b
SA		 1559 priv->timer_set_at = jiffies;
1560 priv->timer_type = TLAN_TIMER_ACTIVITY;
1da177e4 1561 add_timer(&priv->timer);
c659c38b
SA		 1562 } else if (priv->timer_type == TLAN_TIMER_ACTIVITY) {
1563 priv->timer_set_at = jiffies;
1da177e4
LT		 1564 }
1565 }
1566
1da177e4
LT		 1567 return ack;
1568
c659c38b 1569}
1da177e4
LT		 1570
1571
1572
1573
c659c38b
SA		 1574/***************************************************************
1575 * tlan_handle_dummy
1576 *
1577 * Returns:
1578 * 1
1579 * Parms:
1580 * dev Device assigned the IRQ that was
1581 * raised.
1582 * host_int The contents of the HOST_INT
1583 * port.
1584 *
1585 * This function handles the Dummy interrupt, which is
1586 * raised whenever a test interrupt is generated by setting
1587 * the Req_Int bit of HOST_CMD to 1.
1588 *
1589 **************************************************************/
1da177e4 1590
c659c38b 1591static u32 tlan_handle_dummy(struct net_device *dev, u16 host_int)
1da177e4 1592{
50624aab 1593 netdev_info(dev, "Test interrupt\n");
1da177e4
LT		 1594 return 1;
1595
c659c38b 1596}
1da177e4
LT		 1597
1598
1599
1600
c659c38b
SA		 1601/***************************************************************
1602 * tlan_handle_tx_eoc
1603 *
1604 * Returns:
1605 * 1
1606 * Parms:
1607 * dev Device assigned the IRQ that was
1608 * raised.
1609 * host_int The contents of the HOST_INT
1610 * port.
1611 *
1612 * This driver is structured to determine EOC occurrences by
1613 * reading the CSTAT member of the list structure. Tx EOC
1614 * interrupts are disabled via the DIO INTDIS register.
1615 * However, TLAN chips before revision 3.0 didn't have this
1616 * functionality, so process EOC events if this is the
1617 * case.
1618 *
1619 **************************************************************/
1da177e4 1620
c659c38b 1621static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1622{
c659c38b
SA		 1623 struct tlan_priv *priv = netdev_priv(dev);
1624 struct tlan_list *head_list;
1da177e4
LT		 1625 dma_addr_t head_list_phys;
1626 u32 ack = 1;
6aa20a22 1627
c659c38b
SA		 1628 if (priv->tlan_rev < 0x30) {
1629 TLAN_DBG(TLAN_DEBUG_TX,
1630 "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1631 priv->tx_head, priv->tx_tail);
1632 head_list = priv->tx_list + priv->tx_head;
1633 head_list_phys = priv->tx_list_dma
1634 + sizeof(struct tlan_list)*priv->tx_head;
f45437ef
SA		 1635 if ((head_list->c_stat & TLAN_CSTAT_READY)
1636 == TLAN_CSTAT_READY) {
1da177e4 1637 netif_stop_queue(dev);
c659c38b 1638 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4
LT		 1639 ack |= TLAN_HC_GO;
1640 } else {
c659c38b 1641 priv->tx_in_progress = 0;
1da177e4
LT		 1642 }
1643 }
1644
1645 return ack;
1646
c659c38b 1647}
1da177e4
LT		 1648
1649
1650
1651
c659c38b
SA		 1652/***************************************************************
1653 * tlan_handle_status_check
1654 *
1655 * Returns:
1656 * 0 if Adapter check, 1 if Network Status check.
1657 * Parms:
1658 * dev Device assigned the IRQ that was
1659 * raised.
1660 * host_int The contents of the HOST_INT
1661 * port.
1662 *
1663 * This function handles Adapter Check/Network Status
1664 * interrupts generated by the adapter. It checks the
1665 * vector in the HOST_INT register to determine if it is
1666 * an Adapter Check interrupt. If so, it resets the
1667 * adapter. Otherwise it clears the status registers
1668 * and services the PHY.
1669 *
1670 **************************************************************/
1da177e4 1671
c659c38b 1672static u32 tlan_handle_status_check(struct net_device *dev, u16 host_int)
6aa20a22 1673{
c659c38b 1674 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1675 u32 ack;
1676 u32 error;
1677 u8 net_sts;
1678 u32 phy;
1679 u16 tlphy_ctl;
1680 u16 tlphy_sts;
6aa20a22 1681
1da177e4 1682 ack = 1;
c659c38b
SA		 1683 if (host_int & TLAN_HI_IV_MASK) {
1684 netif_stop_queue(dev);
1685 error = inl(dev->base_addr + TLAN_CH_PARM);
50624aab 1686 netdev_info(dev, "Adaptor Error = 0x%x\n", error);
c659c38b
SA		 1687 tlan_read_and_clear_stats(dev, TLAN_RECORD);
1688 outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 1689
1690 schedule_work(&priv->tlan_tqueue);
1691
1692 netif_wake_queue(dev);
1693 ack = 0;
1694 } else {
c659c38b
SA		 1695 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name);
1696 phy = priv->phy[priv->phy_num];
1697
1698 net_sts = tlan_dio_read8(dev->base_addr, TLAN_NET_STS);
1699 if (net_sts) {
1700 tlan_dio_write8(dev->base_addr, TLAN_NET_STS, net_sts);
1701 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1702 dev->name, (unsigned) net_sts);
1da177e4 1703 }
c659c38b 1704 if ((net_sts & TLAN_NET_STS_MIRQ) && (priv->phy_num == 0)) {
beca9282
SAS		 1705 __tlan_mii_read_reg(dev, phy, TLAN_TLPHY_STS, &tlphy_sts);
1706 __tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
c659c38b
SA		 1707 if (!(tlphy_sts & TLAN_TS_POLOK) &&
1708 !(tlphy_ctl & TLAN_TC_SWAPOL)) {
1709 tlphy_ctl |= TLAN_TC_SWAPOL;
beca9282
SAS		 1710 __tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1711 tlphy_ctl);
c659c38b
SA		 1712 } else if ((tlphy_sts & TLAN_TS_POLOK) &&
1713 (tlphy_ctl & TLAN_TC_SWAPOL)) {
1714 tlphy_ctl &= ~TLAN_TC_SWAPOL;
beca9282
SAS		 1715 __tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL,
1716 tlphy_ctl);
1da177e4 1717 }
c659c38b
SA		 1718
1719 if (debug)
beca9282 1720 __tlan_phy_print(dev);
1da177e4
LT		 1721 }
1722 }
1723
1724 return ack;
1725
c659c38b 1726}
1da177e4
LT		 1727
1728
1729
1730
c659c38b
SA		 1731/***************************************************************
1732 * tlan_handle_rx_eoc
1733 *
1734 * Returns:
1735 * 1
1736 * Parms:
1737 * dev Device assigned the IRQ that was
1738 * raised.
1739 * host_int The contents of the HOST_INT
1740 * port.
1741 *
1742 * This driver is structured to determine EOC occurrences by
1743 * reading the CSTAT member of the list structure. Rx EOC
1744 * interrupts are disabled via the DIO INTDIS register.
1745 * However, TLAN chips before revision 3.0 didn't have this
1746 * CSTAT member or a INTDIS register, so if this chip is
1747 * pre-3.0, process EOC interrupts normally.
1748 *
1749 **************************************************************/
1da177e4 1750
c659c38b 1751static u32 tlan_handle_rx_eoc(struct net_device *dev, u16 host_int)
1da177e4 1752{
c659c38b 1753 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 1754 dma_addr_t head_list_phys;
1755 u32 ack = 1;
1756
c659c38b
SA		 1757 if (priv->tlan_rev < 0x30) {
1758 TLAN_DBG(TLAN_DEBUG_RX,
1759 "RECEIVE: Handling RX EOC (head=%d tail=%d) -- IRQ\n",
1760 priv->rx_head, priv->rx_tail);
1761 head_list_phys = priv->rx_list_dma
1762 + sizeof(struct tlan_list)*priv->rx_head;
1763 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM);
1da177e4 1764 ack |= TLAN_HC_GO | TLAN_HC_RT;
c659c38b 1765 priv->rx_eoc_count++;
1da177e4
LT		 1766 }
1767
1768 return ack;
1769
c659c38b 1770}
1da177e4
LT		 1771
1772
1773
1774
1775/*****************************************************************************
1776******************************************************************************
1777
c659c38b 1778ThunderLAN driver timer function
1da177e4
LT		 1779
1780******************************************************************************
1781*****************************************************************************/
1782
1783
c659c38b
SA		 1784/***************************************************************
1785 * tlan_timer
1786 *
1787 * Returns:
1788 * Nothing
1789 * Parms:
1790 * data A value given to add timer when
1791 * add_timer was called.
1792 *
1793 * This function handles timed functionality for the
1794 * TLAN driver. The two current timer uses are for
1795 * delaying for autonegotionation and driving the ACT LED.
1796 * - Autonegotiation requires being allowed about
1797 * 2 1/2 seconds before attempting to transmit a
1798 * packet. It would be a very bad thing to hang
1799 * the kernel this long, so the driver doesn't
1800 * allow transmission 'til after this time, for
1801 * certain PHYs. It would be much nicer if all
1802 * PHYs were interrupt-capable like the internal
1803 * PHY.
1804 * - The ACT LED, which shows adapter activity, is
1805 * driven by the driver, and so must be left on
1806 * for a short period to power up the LED so it
1807 * can be seen. This delay can be changed by
1808 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1809 * if desired. 100 ms produces a slightly
1810 * sluggish response.
1811 *
1812 **************************************************************/
1813
0010e3f8 1814static void tlan_timer(struct timer_list *t)
1da177e4 1815{
0010e3f8
KC		 1816 struct tlan_priv *priv = from_timer(priv, t, timer);
1817 struct net_device *dev = priv->dev;
1da177e4
LT		 1818 u32 elapsed;
1819 unsigned long flags = 0;
1820
1821 priv->timer.function = NULL;
1822
c659c38b 1823 switch (priv->timer_type) {
c659c38b
SA		 1824 case TLAN_TIMER_PHY_PDOWN:
1825 tlan_phy_power_down(dev);
1826 break;
1827 case TLAN_TIMER_PHY_PUP:
1828 tlan_phy_power_up(dev);
1829 break;
1830 case TLAN_TIMER_PHY_RESET:
1831 tlan_phy_reset(dev);
1832 break;
1833 case TLAN_TIMER_PHY_START_LINK:
1834 tlan_phy_start_link(dev);
1835 break;
1836 case TLAN_TIMER_PHY_FINISH_AN:
1837 tlan_phy_finish_auto_neg(dev);
1838 break;
1839 case TLAN_TIMER_FINISH_RESET:
1840 tlan_finish_reset(dev);
1841 break;
1842 case TLAN_TIMER_ACTIVITY:
1843 spin_lock_irqsave(&priv->lock, flags);
1844 if (priv->timer.function == NULL) {
1845 elapsed = jiffies - priv->timer_set_at;
1846 if (elapsed >= TLAN_TIMER_ACT_DELAY) {
1847 tlan_dio_write8(dev->base_addr,
1848 TLAN_LED_REG, TLAN_LED_LINK);
1849 } else {
c659c38b
SA		 1850 priv->timer.expires = priv->timer_set_at
1851 + TLAN_TIMER_ACT_DELAY;
1852 spin_unlock_irqrestore(&priv->lock, flags);
1853 add_timer(&priv->timer);
1854 break;
1da177e4 1855 }
c659c38b
SA		 1856 }
1857 spin_unlock_irqrestore(&priv->lock, flags);
1858 break;
1859 default:
1860 break;
1da177e4
LT		 1861 }
1862
c659c38b 1863}
1da177e4
LT		 1864
1865
1da177e4
LT		 1866/*****************************************************************************
1867******************************************************************************
1868
c659c38b 1869ThunderLAN driver adapter related routines
1da177e4
LT		 1870
1871******************************************************************************
1872*****************************************************************************/
1873
1874
c659c38b
SA		 1875/***************************************************************
1876 * tlan_reset_lists
1877 *
1878 * Returns:
1879 * Nothing
1880 * Parms:
1881 * dev The device structure with the list
b903036a 1882 * structures to be reset.
c659c38b
SA		 1883 *
1884 * This routine sets the variables associated with managing
1885 * the TLAN lists to their initial values.
1886 *
1887 **************************************************************/
1888
1889static void tlan_reset_lists(struct net_device *dev)
1da177e4 1890{
c659c38b 1891 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1892 int i;
c659c38b 1893 struct tlan_list *list;
1da177e4
LT		 1894 dma_addr_t list_phys;
1895 struct sk_buff *skb;
1da177e4 1896
c659c38b
SA		 1897 priv->tx_head = 0;
1898 priv->tx_tail = 0;
1899 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1900 list = priv->tx_list + i;
1901 list->c_stat = TLAN_CSTAT_UNUSED;
5eeabf51 1902 list->buffer[0].address = 0;
1da177e4
LT		 1903 list->buffer[2].count = 0;
1904 list->buffer[2].address = 0;
1905 list->buffer[8].address = 0;
1906 list->buffer[9].address = 0;
1907 }
1908
c659c38b
SA		 1909 priv->rx_head = 0;
1910 priv->rx_tail = TLAN_NUM_RX_LISTS - 1;
1911 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1912 list = priv->rx_list + i;
1913 list_phys = priv->rx_list_dma + sizeof(struct tlan_list)*i;
1914 list->c_stat = TLAN_CSTAT_READY;
1915 list->frame_size = TLAN_MAX_FRAME_SIZE;
1da177e4 1916 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
89d71a66 1917 skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5);
720a43ef 1918 if (!skb)
5eeabf51 1919 break;
5eeabf51 1920
9720bae3 1921 list->buffer[0].address = dma_map_single(&priv->pci_dev->dev,
5eeabf51
SA		 1922 skb->data,
1923 TLAN_MAX_FRAME_SIZE,
9720bae3 1924 DMA_FROM_DEVICE);
c659c38b 1925 tlan_store_skb(list, skb);
1da177e4
LT		 1926 list->buffer[1].count = 0;
1927 list->buffer[1].address = 0;
c659c38b 1928 list->forward = list_phys + sizeof(struct tlan_list);
9ded65a1
SH		 1929 }
1930
1931 /* in case ran out of memory early, clear bits */
1932 while (i < TLAN_NUM_RX_LISTS) {
c659c38b 1933 tlan_store_skb(priv->rx_list + i, NULL);
9ded65a1 1934 ++i;
1da177e4 1935 }
9ded65a1 1936 list->forward = 0;
1da177e4 1937
c659c38b 1938}
1da177e4
LT		 1939
1940
c659c38b 1941static void tlan_free_lists(struct net_device *dev)
1da177e4 1942{
c659c38b 1943 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 1944 int i;
c659c38b 1945 struct tlan_list *list;
1da177e4
LT		 1946 struct sk_buff *skb;
1947
c659c38b
SA		 1948 for (i = 0; i < TLAN_NUM_TX_LISTS; i++) {
1949 list = priv->tx_list + i;
1950 skb = tlan_get_skb(list);
1951 if (skb) {
9720bae3
CJ		 1952 dma_unmap_single(&priv->pci_dev->dev,
1953 list->buffer[0].address,
1954 max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE),
1955 DMA_TO_DEVICE);
c659c38b 1956 dev_kfree_skb_any(skb);
5eeabf51
SA		 1957 list->buffer[8].address = 0;
1958 list->buffer[9].address = 0;
1da177e4 1959 }
5eeabf51 1960 }
1da177e4 1961
c659c38b
SA		 1962 for (i = 0; i < TLAN_NUM_RX_LISTS; i++) {
1963 list = priv->rx_list + i;
1964 skb = tlan_get_skb(list);
1965 if (skb) {
9720bae3 1966 dma_unmap_single(&priv->pci_dev->dev,
5eeabf51 1967 list->buffer[0].address,
9720bae3 1968 TLAN_MAX_FRAME_SIZE, DMA_FROM_DEVICE);
c659c38b 1969 dev_kfree_skb_any(skb);
5eeabf51
SA		 1970 list->buffer[8].address = 0;
1971 list->buffer[9].address = 0;
1da177e4
LT		 1972 }
1973 }
c659c38b 1974}
1da177e4
LT		 1975
1976
1977
1978
c659c38b
SA		 1979/***************************************************************
1980 * tlan_print_dio
1981 *
1982 * Returns:
1983 * Nothing
1984 * Parms:
1985 * io_base Base IO port of the device of
1986 * which to print DIO registers.
1987 *
1988 * This function prints out all the internal (DIO)
1989 * registers of a TLAN chip.
1990 *
1991 **************************************************************/
1da177e4 1992
c659c38b 1993static void tlan_print_dio(u16 io_base)
1da177e4
LT		 1994{
1995 u32 data0, data1;
1996 int i;
1997
50624aab
JP		 1998 pr_info("Contents of internal registers for io base 0x%04hx\n",
1999 io_base);
2000 pr_info("Off. +0 +4\n");
c659c38b
SA		 2001 for (i = 0; i < 0x4C; i += 8) {
2002 data0 = tlan_dio_read32(io_base, i);
2003 data1 = tlan_dio_read32(io_base, i + 0x4);
50624aab 2004 pr_info("0x%02x 0x%08x 0x%08x\n", i, data0, data1);
1da177e4
LT		 2005 }
2006
c659c38b 2007}
1da177e4
LT		 2008
2009
2010
2011
c659c38b
SA		 2012/***************************************************************
2013 * TLan_PrintList
2014 *
2015 * Returns:
2016 * Nothing
2017 * Parms:
2018 * list A pointer to the struct tlan_list structure to
2019 * be printed.
2020 * type A string to designate type of list,
2021 * "Rx" or "Tx".
2022 * num The index of the list.
2023 *
2024 * This function prints out the contents of the list
2025 * pointed to by the list parameter.
2026 *
2027 **************************************************************/
1da177e4 2028
c659c38b 2029static void tlan_print_list(struct tlan_list *list, char *type, int num)
1da177e4
LT		 2030{
2031 int i;
2032
50624aab
JP		 2033 pr_info("%s List %d at %p\n", type, num, list);
2034 pr_info(" Forward = 0x%08x\n", list->forward);
2035 pr_info(" CSTAT = 0x%04hx\n", list->c_stat);
2036 pr_info(" Frame Size = 0x%04hx\n", list->frame_size);
c659c38b
SA		 2037 /* for (i = 0; i < 10; i++) { */
2038 for (i = 0; i < 2; i++) {
50624aab
JP		 2039 pr_info(" Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2040 i, list->buffer[i].count, list->buffer[i].address);
1da177e4
LT		 2041 }
2042
c659c38b 2043}
1da177e4
LT		 2044
2045
2046
2047
c659c38b
SA		 2048/***************************************************************
2049 * tlan_read_and_clear_stats
2050 *
2051 * Returns:
2052 * Nothing
2053 * Parms:
2054 * dev Pointer to device structure of adapter
2055 * to which to read stats.
2056 * record Flag indicating whether to add
2057 *
2058 * This functions reads all the internal status registers
2059 * of the TLAN chip, which clears them as a side effect.
2060 * It then either adds the values to the device's status
2061 * struct, or discards them, depending on whether record
2062 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2063 *
2064 **************************************************************/
1da177e4 2065
c659c38b 2066static void tlan_read_and_clear_stats(struct net_device *dev, int record)
1da177e4 2067{
1da177e4
LT		 2068 u32 tx_good, tx_under;
2069 u32 rx_good, rx_over;
2070 u32 def_tx, crc, code;
2071 u32 multi_col, single_col;
2072 u32 excess_col, late_col, loss;
2073
c659c38b
SA		 2074 outw(TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2075 tx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2076 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2077 tx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2078 tx_under = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2079
2080 outw(TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR);
2081 rx_good = inb(dev->base_addr + TLAN_DIO_DATA);
2082 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2083 rx_good += inb(dev->base_addr + TLAN_DIO_DATA + 2) << 16;
2084 rx_over = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2085
2086 outw(TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR);
2087 def_tx = inb(dev->base_addr + TLAN_DIO_DATA);
2088 def_tx += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2089 crc = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2090 code = inb(dev->base_addr + TLAN_DIO_DATA + 3);
2091
2092 outw(TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2093 multi_col = inb(dev->base_addr + TLAN_DIO_DATA);
2094 multi_col += inb(dev->base_addr + TLAN_DIO_DATA + 1) << 8;
2095 single_col = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2096 single_col += inb(dev->base_addr + TLAN_DIO_DATA + 3) << 8;
2097
2098 outw(TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR);
2099 excess_col = inb(dev->base_addr + TLAN_DIO_DATA);
2100 late_col = inb(dev->base_addr + TLAN_DIO_DATA + 1);
2101 loss = inb(dev->base_addr + TLAN_DIO_DATA + 2);
2102
2103 if (record) {
f8f31544
SH		 2104 dev->stats.rx_packets += rx_good;
2105 dev->stats.rx_errors += rx_over + crc + code;
2106 dev->stats.tx_packets += tx_good;
2107 dev->stats.tx_errors += tx_under + loss;
c659c38b
SA		 2108 dev->stats.collisions += multi_col
2109 + single_col + excess_col + late_col;
f8f31544
SH		 2110
2111 dev->stats.rx_over_errors += rx_over;
2112 dev->stats.rx_crc_errors += crc;
2113 dev->stats.rx_frame_errors += code;
2114
2115 dev->stats.tx_aborted_errors += tx_under;
2116 dev->stats.tx_carrier_errors += loss;
1da177e4 2117 }
6aa20a22 2118
c659c38b 2119}
1da177e4
LT		 2120
2121
2122
2123
c659c38b
SA		 2124/***************************************************************
2125 * TLan_Reset
2126 *
2127 * Returns:
2128 * 0
2129 * Parms:
2130 * dev Pointer to device structure of adapter
2131 * to be reset.
2132 *
2133 * This function resets the adapter and it's physical
2134 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2135 * Programmer's Guide" for details. The routine tries to
2136 * implement what is detailed there, though adjustments
2137 * have been made.
2138 *
2139 **************************************************************/
1da177e4 2140
98e0f521 2141static void
c659c38b 2142tlan_reset_adapter(struct net_device *dev)
1da177e4 2143{
c659c38b 2144 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2145 int i;
2146 u32 addr;
2147 u32 data;
2148 u8 data8;
2149
c659c38b
SA		 2150 priv->tlan_full_duplex = false;
2151 priv->phy_online = 0;
1da177e4
LT		 2152 netif_carrier_off(dev);
2153
2154/* 1. Assert reset bit. */
2155
2156 data = inl(dev->base_addr + TLAN_HOST_CMD);
2157 data |= TLAN_HC_AD_RST;
2158 outl(data, dev->base_addr + TLAN_HOST_CMD);
6aa20a22 2159
1da177e4
LT		 2160 udelay(1000);
2161
c659c38b 2162/* 2. Turn off interrupts. (Probably isn't necessary) */
1da177e4
LT		 2163
2164 data = inl(dev->base_addr + TLAN_HOST_CMD);
2165 data |= TLAN_HC_INT_OFF;
2166 outl(data, dev->base_addr + TLAN_HOST_CMD);
2167
2168/* 3. Clear AREGs and HASHs. */
2169
c659c38b
SA		 2170 for (i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4)
2171 tlan_dio_write32(dev->base_addr, (u16) i, 0);
1da177e4
LT		 2172
2173/* 4. Setup NetConfig register. */
2174
2175 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
c659c38b 2176 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4
LT		 2177
2178/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2179
c659c38b
SA		 2180 outl(TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD);
2181 outl(TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD);
1da177e4
LT		 2182
2183/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2184
c659c38b 2185 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
1da177e4 2186 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2187 tlan_set_bit(TLAN_NET_SIO_NMRST, addr);
1da177e4
LT		 2188
2189/* 7. Setup the remaining registers. */
2190
c659c38b 2191 if (priv->tlan_rev >= 0x30) {
1da177e4 2192 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
c659c38b 2193 tlan_dio_write8(dev->base_addr, TLAN_INT_DIS, data8);
1da177e4 2194 }
c659c38b 2195 tlan_phy_detect(dev);
1da177e4 2196 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
6aa20a22 2197
c659c38b 2198 if (priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY) {
1da177e4 2199 data |= TLAN_NET_CFG_BIT;
c659c38b
SA		 2200 if (priv->aui == 1) {
2201 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x0a);
2202 } else if (priv->duplex == TLAN_DUPLEX_FULL) {
2203 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x00);
2204 priv->tlan_full_duplex = true;
1da177e4 2205 } else {
c659c38b 2206 tlan_dio_write8(dev->base_addr, TLAN_ACOMMIT, 0x08);
1da177e4
LT		 2207 }
2208 }
2209
7a72eddc
OZ		 2210 /* don't power down internal PHY if we're going to use it */
2211 if (priv->phy_num == 0 ||
2212 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10))
1da177e4 2213 data |= TLAN_NET_CFG_PHY_EN;
c659c38b 2214 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, (u16) data);
1da177e4 2215
c659c38b
SA		 2216 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY)
2217 tlan_finish_reset(dev);
2218 else
2219 tlan_phy_power_down(dev);
1da177e4 2220
c659c38b 2221}
1da177e4
LT		 2222
2223
2224
2225
98e0f521 2226static void
c659c38b 2227tlan_finish_reset(struct net_device *dev)
1da177e4 2228{
c659c38b 2229 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2230 u8 data;
2231 u32 phy;
2232 u8 sio;
2233 u16 status;
2234 u16 partner;
2235 u16 tlphy_ctl;
c659c38b 2236 u16 tlphy_par;
1da177e4 2237 u16 tlphy_id1, tlphy_id2;
c659c38b 2238 int i;
1da177e4 2239
c659c38b 2240 phy = priv->phy[priv->phy_num];
1da177e4
LT		 2241
2242 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
c659c38b 2243 if (priv->tlan_full_duplex)
1da177e4 2244 data |= TLAN_NET_CMD_DUPLEX;
c659c38b 2245 tlan_dio_write8(dev->base_addr, TLAN_NET_CMD, data);
6aa20a22 2246 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
c659c38b 2247 if (priv->phy_num == 0)
6aa20a22 2248 data |= TLAN_NET_MASK_MASK7;
c659c38b
SA		 2249 tlan_dio_write8(dev->base_addr, TLAN_NET_MASK, data);
2250 tlan_dio_write16(dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7);
2251 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &tlphy_id1);
2252 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &tlphy_id2);
6aa20a22 2253
c659c38b
SA		 2254 if ((priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) ||
2255 (priv->aui)) {
1da177e4 2256 status = MII_GS_LINK;
50624aab 2257 netdev_info(dev, "Link forced\n");
1da177e4 2258 } else {
c659c38b
SA		 2259 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2260 udelay(1000);
2261 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
c0a87c22
OZ		 2262 if (status & MII_GS_LINK) {
2263 /* We only support link info on Nat.Sem. PHY's */
2264 if ((tlphy_id1 == NAT_SEM_ID1) &&
2265 (tlphy_id2 == NAT_SEM_ID2)) {
2266 tlan_mii_read_reg(dev, phy, MII_AN_LPA,
2267 &partner);
2268 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR,
2269 &tlphy_par);
2270
2271 netdev_info(dev,
2272 "Link active, %s %uMbps %s-Duplex\n",
2273 !(tlphy_par & TLAN_PHY_AN_EN_STAT)
2274 ? "forced" : "Autonegotiation enabled,",
2275 tlphy_par & TLAN_PHY_SPEED_100
2276 ? 100 : 10,
2277 tlphy_par & TLAN_PHY_DUPLEX_FULL
2278 ? "Full" : "Half");
2279
2280 if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
2281 netdev_info(dev, "Partner capability:");
2282 for (i = 5; i < 10; i++)
2283 if (partner & (1 << i))
2284 pr_cont(" %s",
2285 media[i-5]);
2286 pr_cont("\n");
2287 }
2288 } else
2289 netdev_info(dev, "Link active\n");
2290 /* Enabling link beat monitoring */
c0a87c22
OZ		 2291 priv->media_timer.expires = jiffies + HZ;
2292 add_timer(&priv->media_timer);
1da177e4
LT		 2293 }
2294 }
2295
c659c38b
SA		 2296 if (priv->phy_num == 0) {
2297 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl);
2298 tlphy_ctl |= TLAN_TC_INTEN;
2299 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
2300 sio = tlan_dio_read8(dev->base_addr, TLAN_NET_SIO);
2301 sio |= TLAN_NET_SIO_MINTEN;
2302 tlan_dio_write8(dev->base_addr, TLAN_NET_SIO, sio);
2303 }
2304
2305 if (status & MII_GS_LINK) {
2306 tlan_set_mac(dev, 0, dev->dev_addr);
2307 priv->phy_online = 1;
2308 outb((TLAN_HC_INT_ON >> 8), dev->base_addr + TLAN_HOST_CMD + 1);
2309 if (debug >= 1 && debug != TLAN_DEBUG_PROBE)
2310 outb((TLAN_HC_REQ_INT >> 8),
2311 dev->base_addr + TLAN_HOST_CMD + 1);
2312 outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
2313 outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
c0a87c22 2314 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
1da177e4
LT		 2315 netif_carrier_on(dev);
2316 } else {
50624aab 2317 netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
c659c38b 2318 tlan_set_timer(dev, (10*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4
LT		 2319 return;
2320 }
c659c38b 2321 tlan_set_multicast_list(dev);
1da177e4 2322
c659c38b 2323}
1da177e4
LT		 2324
2325
2326
2327
c659c38b
SA		 2328/***************************************************************
2329 * tlan_set_mac
2330 *
2331 * Returns:
2332 * Nothing
2333 * Parms:
2334 * dev Pointer to device structure of adapter
2335 * on which to change the AREG.
2336 * areg The AREG to set the address in (0 - 3).
2337 * mac A pointer to an array of chars. Each
2338 * element stores one byte of the address.
2339 * IE, it isn't in ascii.
2340 *
2341 * This function transfers a MAC address to one of the
2342 * TLAN AREGs (address registers). The TLAN chip locks
2343 * the register on writing to offset 0 and unlocks the
2344 * register after writing to offset 5. If NULL is passed
2345 * in mac, then the AREG is filled with 0's.
2346 *
2347 **************************************************************/
1da177e4 2348
c659c38b 2349static void tlan_set_mac(struct net_device *dev, int areg, char *mac)
1da177e4
LT		 2350{
2351 int i;
6aa20a22 2352
1da177e4
LT		 2353 areg *= 6;
2354
c659c38b
SA		 2355 if (mac != NULL) {
2356 for (i = 0; i < 6; i++)
2357 tlan_dio_write8(dev->base_addr,
2358 TLAN_AREG_0 + areg + i, mac[i]);
1da177e4 2359 } else {
c659c38b
SA		 2360 for (i = 0; i < 6; i++)
2361 tlan_dio_write8(dev->base_addr,
2362 TLAN_AREG_0 + areg + i, 0);
1da177e4
LT		 2363 }
2364
c659c38b 2365}
1da177e4
LT		 2366
2367
2368
2369
2370/*****************************************************************************
2371******************************************************************************
2372
c659c38b 2373ThunderLAN driver PHY layer routines
1da177e4
LT		 2374
2375******************************************************************************
2376*****************************************************************************/
2377
2378
2379
c659c38b 2380/*********************************************************************
beca9282 2381 * __tlan_phy_print
c659c38b
SA		 2382 *
2383 * Returns:
2384 * Nothing
2385 * Parms:
2386 * dev A pointer to the device structure of the
2387 * TLAN device having the PHYs to be detailed.
2388 *
2389 * This function prints the registers a PHY (aka transceiver).
2390 *
2391 ********************************************************************/
1da177e4 2392
beca9282 2393static void __tlan_phy_print(struct net_device *dev)
1da177e4 2394{
c659c38b 2395 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2396 u16 i, data0, data1, data2, data3, phy;
2397
beca9282
SAS		 2398 lockdep_assert_held(&priv->lock);
2399
c659c38b
SA		 2400 phy = priv->phy[priv->phy_num];
2401
2402 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
50624aab 2403 netdev_info(dev, "Unmanaged PHY\n");
c659c38b 2404 } else if (phy <= TLAN_PHY_MAX_ADDR) {
50624aab
JP		 2405 netdev_info(dev, "PHY 0x%02x\n", phy);
2406 pr_info(" Off. +0 +1 +2 +3\n");
c659c38b 2407 for (i = 0; i < 0x20; i += 4) {
beca9282
SAS		 2408 __tlan_mii_read_reg(dev, phy, i, &data0);
2409 __tlan_mii_read_reg(dev, phy, i + 1, &data1);
2410 __tlan_mii_read_reg(dev, phy, i + 2, &data2);
2411 __tlan_mii_read_reg(dev, phy, i + 3, &data3);
50624aab
JP		 2412 pr_info(" 0x%02x 0x%04hx 0x%04hx 0x%04hx 0x%04hx\n",
2413 i, data0, data1, data2, data3);
1da177e4
LT		 2414 }
2415 } else {
50624aab 2416 netdev_info(dev, "Invalid PHY\n");
1da177e4
LT		 2417 }
2418
c659c38b 2419}
1da177e4 2420
beca9282
SAS		 2421static void tlan_phy_print(struct net_device *dev)
2422{
2423 struct tlan_priv *priv = netdev_priv(dev);
2424 unsigned long flags;
1da177e4 2425
beca9282
SAS		 2426 spin_lock_irqsave(&priv->lock, flags);
2427 __tlan_phy_print(dev);
2428 spin_unlock_irqrestore(&priv->lock, flags);
2429}
1da177e4
LT		 2430
2431
c659c38b
SA		 2432/*********************************************************************
2433 * tlan_phy_detect
2434 *
2435 * Returns:
2436 * Nothing
2437 * Parms:
2438 * dev A pointer to the device structure of the adapter
2439 * for which the PHY needs determined.
2440 *
2441 * So far I've found that adapters which have external PHYs
2442 * may also use the internal PHY for part of the functionality.
2443 * (eg, AUI/Thinnet). This function finds out if this TLAN
2444 * chip has an internal PHY, and then finds the first external
2445 * PHY (starting from address 0) if it exists).
2446 *
2447 ********************************************************************/
1da177e4 2448
c659c38b 2449static void tlan_phy_detect(struct net_device *dev)
1da177e4 2450{
c659c38b 2451 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2452 u16 control;
2453 u16 hi;
2454 u16 lo;
2455 u32 phy;
2456
c659c38b
SA		 2457 if (priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY) {
2458 priv->phy_num = 0xffff;
1da177e4
LT		 2459 return;
2460 }
2461
c659c38b 2462 tlan_mii_read_reg(dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi);
6aa20a22 2463
c659c38b 2464 if (hi != 0xffff)
1da177e4 2465 priv->phy[0] = TLAN_PHY_MAX_ADDR;
c659c38b 2466 else
1da177e4 2467 priv->phy[0] = TLAN_PHY_NONE;
1da177e4
LT		 2468
2469 priv->phy[1] = TLAN_PHY_NONE;
c659c38b
SA		 2470 for (phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++) {
2471 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &control);
2472 tlan_mii_read_reg(dev, phy, MII_GEN_ID_HI, &hi);
2473 tlan_mii_read_reg(dev, phy, MII_GEN_ID_LO, &lo);
2474 if ((control != 0xffff) ||
2475 (hi != 0xffff) || (lo != 0xffff)) {
2476 TLAN_DBG(TLAN_DEBUG_GNRL,
2477 "PHY found at %02x %04x %04x %04x\n",
2478 phy, control, hi, lo);
2479 if ((priv->phy[1] == TLAN_PHY_NONE) &&
2480 (phy != TLAN_PHY_MAX_ADDR)) {
1da177e4
LT		 2481 priv->phy[1] = phy;
2482 }
2483 }
2484 }
2485
c659c38b
SA		 2486 if (priv->phy[1] != TLAN_PHY_NONE)
2487 priv->phy_num = 1;
2488 else if (priv->phy[0] != TLAN_PHY_NONE)
2489 priv->phy_num = 0;
2490 else
50624aab 2491 netdev_info(dev, "Cannot initialize device, no PHY was found!\n");
1da177e4 2492
c659c38b 2493}
1da177e4
LT		 2494
2495
2496
2497
c659c38b 2498static void tlan_phy_power_down(struct net_device *dev)
1da177e4 2499{
c659c38b 2500 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2501 u16 value;
2502
c659c38b 2503 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name);
1da177e4 2504 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
c659c38b
SA		 2505 tlan_mii_sync(dev->base_addr);
2506 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
9162e7e5
OZ		 2507 if ((priv->phy_num == 0) && (priv->phy[1] != TLAN_PHY_NONE)) {
2508 /* if using internal PHY, the external PHY must be powered on */
2509 if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10)
2510 value = MII_GC_ISOLATE; /* just isolate it from MII */
c659c38b
SA		 2511 tlan_mii_sync(dev->base_addr);
2512 tlan_mii_write_reg(dev, priv->phy[1], MII_GEN_CTL, value);
1da177e4
LT		 2513 }
2514
2515 /* Wait for 50 ms and powerup
394039fe 2516 * This is arbitrary. It is intended to make sure the
1da177e4
LT		 2517 * transceiver settles.
2518 */
51fd9471 2519 tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_PUP);
1da177e4 2520
c659c38b 2521}
1da177e4
LT		 2522
2523
2524
2525
c659c38b 2526static void tlan_phy_power_up(struct net_device *dev)
1da177e4 2527{
c659c38b 2528 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2529 u16 value;
2530
c659c38b
SA		 2531 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name);
2532 tlan_mii_sync(dev->base_addr);
1da177e4 2533 value = MII_GC_LOOPBK;
c659c38b
SA		 2534 tlan_mii_write_reg(dev, priv->phy[priv->phy_num], MII_GEN_CTL, value);
2535 tlan_mii_sync(dev->base_addr);
1da177e4
LT		 2536 /* Wait for 500 ms and reset the
2537 * transceiver. The TLAN docs say both 50 ms and
2538 * 500 ms, so do the longer, just in case.
2539 */
b5057dd7 2540 tlan_set_timer(dev, msecs_to_jiffies(500), TLAN_TIMER_PHY_RESET);
1da177e4 2541
c659c38b 2542}
1da177e4
LT		 2543
2544
2545
2546
c659c38b 2547static void tlan_phy_reset(struct net_device *dev)
1da177e4 2548{
c659c38b 2549 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2550 u16 phy;
2551 u16 value;
9cff441e 2552 unsigned long timeout = jiffies + HZ;
1da177e4 2553
c659c38b 2554 phy = priv->phy[priv->phy_num];
1da177e4 2555
fd9071ec 2556 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Resetting PHY.\n", dev->name);
c659c38b 2557 tlan_mii_sync(dev->base_addr);
1da177e4 2558 value = MII_GC_LOOPBK | MII_GC_RESET;
c659c38b 2559 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, value);
9cff441e 2560 do {
c659c38b 2561 tlan_mii_read_reg(dev, phy, MII_GEN_CTL, &value);
9cff441e
OZ		 2562 if (time_after(jiffies, timeout)) {
2563 netdev_err(dev, "PHY reset timeout\n");
2564 return;
2565 }
2566 } while (value & MII_GC_RESET);
1da177e4
LT		 2567
2568 /* Wait for 500 ms and initialize.
2569 * I don't remember why I wait this long.
2570 * I've changed this to 50ms, as it seems long enough.
2571 */
51fd9471 2572 tlan_set_timer(dev, msecs_to_jiffies(50), TLAN_TIMER_PHY_START_LINK);
1da177e4 2573
c659c38b 2574}
1da177e4
LT		 2575
2576
2577
2578
c659c38b 2579static void tlan_phy_start_link(struct net_device *dev)
1da177e4 2580{
c659c38b 2581 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2582 u16 ability;
2583 u16 control;
2584 u16 data;
2585 u16 phy;
2586 u16 status;
2587 u16 tctl;
2588
c659c38b
SA		 2589 phy = priv->phy[priv->phy_num];
2590 TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name);
2591 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2592 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &ability);
1da177e4 2593
c659c38b
SA		 2594 if ((status & MII_GS_AUTONEG) &&
2595 (!priv->aui)) {
1da177e4 2596 ability = status >> 11;
c659c38b
SA		 2597 if (priv->speed == TLAN_SPEED_10 &&
2598 priv->duplex == TLAN_DUPLEX_HALF) {
2599 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0000);
2600 } else if (priv->speed == TLAN_SPEED_10 &&
2601 priv->duplex == TLAN_DUPLEX_FULL) {
2602 priv->tlan_full_duplex = true;
2603 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x0100);
2604 } else if (priv->speed == TLAN_SPEED_100 &&
2605 priv->duplex == TLAN_DUPLEX_HALF) {
2606 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2000);
2607 } else if (priv->speed == TLAN_SPEED_100 &&
2608 priv->duplex == TLAN_DUPLEX_FULL) {
2609 priv->tlan_full_duplex = true;
2610 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x2100);
1da177e4 2611 } else {
6aa20a22 2612
1da177e4 2613 /* Set Auto-Neg advertisement */
c659c38b
SA		 2614 tlan_mii_write_reg(dev, phy, MII_AN_ADV,
2615 (ability << 5) | 1);
1da177e4 2616 /* Enablee Auto-Neg */
c659c38b 2617 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1000);
1da177e4 2618 /* Restart Auto-Neg */
c659c38b 2619 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, 0x1200);
1da177e4 2620 /* Wait for 4 sec for autonegotiation
c659c38b
SA		 2621 * to complete. The max spec time is less than this
2622 * but the card need additional time to start AN.
2623 * .5 sec should be plenty extra.
2624 */
50624aab 2625 netdev_info(dev, "Starting autonegotiation\n");
c659c38b 2626 tlan_set_timer(dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2627 return;
2628 }
6aa20a22
JG		 2629
2630 }
2631
c659c38b
SA		 2632 if ((priv->aui) && (priv->phy_num != 0)) {
2633 priv->phy_num = 0;
2634 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN
2635 | TLAN_NET_CFG_PHY_EN;
2636 tlan_dio_write16(dev->base_addr, TLAN_NET_CONFIG, data);
51fd9471 2637 tlan_set_timer(dev, msecs_to_jiffies(40), TLAN_TIMER_PHY_PDOWN);
1da177e4 2638 return;
c659c38b 2639 } else if (priv->phy_num == 0) {
1da177e4 2640 control = 0;
c659c38b
SA		 2641 tlan_mii_read_reg(dev, phy, TLAN_TLPHY_CTL, &tctl);
2642 if (priv->aui) {
2643 tctl |= TLAN_TC_AUISEL;
6aa20a22 2644 } else {
c659c38b
SA		 2645 tctl &= ~TLAN_TC_AUISEL;
2646 if (priv->duplex == TLAN_DUPLEX_FULL) {
1da177e4 2647 control |= MII_GC_DUPLEX;
c659c38b 2648 priv->tlan_full_duplex = true;
1da177e4 2649 }
c659c38b 2650 if (priv->speed == TLAN_SPEED_100)
1da177e4 2651 control |= MII_GC_SPEEDSEL;
1da177e4 2652 }
c659c38b
SA		 2653 tlan_mii_write_reg(dev, phy, MII_GEN_CTL, control);
2654 tlan_mii_write_reg(dev, phy, TLAN_TLPHY_CTL, tctl);
1da177e4
LT		 2655 }
2656
2657 /* Wait for 2 sec to give the transceiver time
2658 * to establish link.
2659 */
c659c38b 2660 tlan_set_timer(dev, (4*HZ), TLAN_TIMER_FINISH_RESET);
1da177e4 2661
c659c38b 2662}
1da177e4
LT		 2663
2664
2665
2666
c659c38b 2667static void tlan_phy_finish_auto_neg(struct net_device *dev)
1da177e4 2668{
c659c38b 2669 struct tlan_priv *priv = netdev_priv(dev);
1da177e4
LT		 2670 u16 an_adv;
2671 u16 an_lpa;
1da177e4
LT		 2672 u16 mode;
2673 u16 phy;
2674 u16 status;
6aa20a22 2675
c659c38b 2676 phy = priv->phy[priv->phy_num];
1da177e4 2677
c659c38b
SA		 2678 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
2679 udelay(1000);
2680 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
1da177e4 2681
c659c38b 2682 if (!(status & MII_GS_AUTOCMPLT)) {
1da177e4
LT		 2683 /* Wait for 8 sec to give the process
2684 * more time. Perhaps we should fail after a while.
2685 */
278e48b0 2686 tlan_set_timer(dev, 2 * HZ, TLAN_TIMER_PHY_FINISH_AN);
1da177e4
LT		 2687 return;
2688 }
2689
50624aab 2690 netdev_info(dev, "Autonegotiation complete\n");
c659c38b
SA		 2691 tlan_mii_read_reg(dev, phy, MII_AN_ADV, &an_adv);
2692 tlan_mii_read_reg(dev, phy, MII_AN_LPA, &an_lpa);
1da177e4 2693 mode = an_adv & an_lpa & 0x03E0;
c659c38b
SA		 2694 if (mode & 0x0100)
2695 priv->tlan_full_duplex = true;
2696 else if (!(mode & 0x0080) && (mode & 0x0040))
2697 priv->tlan_full_duplex = true;
2698
36bbe2f4 2699 /* switch to internal PHY for 10 Mbps */
c659c38b
SA		 2700 if ((!(mode & 0x0180)) &&
2701 (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) &&
2702 (priv->phy_num != 0)) {
2703 priv->phy_num = 0;
51fd9471 2704 tlan_set_timer(dev, msecs_to_jiffies(400), TLAN_TIMER_PHY_PDOWN);
1da177e4
LT		 2705 return;
2706 }
2707
c659c38b
SA		 2708 if (priv->phy_num == 0) {
2709 if ((priv->duplex == TLAN_DUPLEX_FULL) ||
2710 (an_adv & an_lpa & 0x0040)) {
2711 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2712 MII_GC_AUTOENB | MII_GC_DUPLEX);
50624aab 2713 netdev_info(dev, "Starting internal PHY with FULL-DUPLEX\n");
1da177e4 2714 } else {
c659c38b
SA		 2715 tlan_mii_write_reg(dev, phy, MII_GEN_CTL,
2716 MII_GC_AUTOENB);
50624aab 2717 netdev_info(dev, "Starting internal PHY with HALF-DUPLEX\n");
1da177e4
LT		 2718 }
2719 }
2720
2721 /* Wait for 100 ms. No reason in partiticular.
2722 */
51fd9471 2723 tlan_set_timer(dev, msecs_to_jiffies(100), TLAN_TIMER_FINISH_RESET);
6aa20a22 2724
c659c38b 2725}
1da177e4 2726
1da177e4 2727
c659c38b
SA		 2728/*********************************************************************
2729 *
2730 * tlan_phy_monitor
2731 *
2732 * Returns:
2733 * None
2734 *
2735 * Params:
c0a87c22 2736 * data The device structure of this device.
c659c38b
SA		 2737 *
2738 *
2739 * This function monitors PHY condition by reading the status
c0a87c22
OZ		 2740 * register via the MII bus, controls LINK LED and notifies the
2741 * kernel about link state.
c659c38b
SA		 2742 *
2743 *******************************************************************/
2744
0010e3f8 2745static void tlan_phy_monitor(struct timer_list *t)
1da177e4 2746{
0010e3f8
KC		 2747 struct tlan_priv *priv = from_timer(priv, t, media_timer);
2748 struct net_device *dev = priv->dev;
1da177e4
LT		 2749 u16 phy;
2750 u16 phy_status;
2751
c659c38b 2752 phy = priv->phy[priv->phy_num];
1da177e4 2753
c659c38b
SA		 2754 /* Get PHY status register */
2755 tlan_mii_read_reg(dev, phy, MII_GEN_STS, &phy_status);
1da177e4 2756
c659c38b
SA		 2757 /* Check if link has been lost */
2758 if (!(phy_status & MII_GS_LINK)) {
c0a87c22 2759 if (netif_carrier_ok(dev)) {
c659c38b
SA		 2760 printk(KERN_DEBUG "TLAN: %s has lost link\n",
2761 dev->name);
c0a87c22 2762 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, 0);
c659c38b 2763 netif_carrier_off(dev);
36bbe2f4
OZ		 2764 if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) {
2765 /* power down internal PHY */
2766 u16 data = MII_GC_PDOWN | MII_GC_LOOPBK |
2767 MII_GC_ISOLATE;
2768
2769 tlan_mii_sync(dev->base_addr);
2770 tlan_mii_write_reg(dev, priv->phy[0],
2771 MII_GEN_CTL, data);
2772 /* set to external PHY */
2773 priv->phy_num = 1;
2774 /* restart autonegotiation */
51fd9471 2775 tlan_set_timer(dev, msecs_to_jiffies(400),
36bbe2f4
OZ		 2776 TLAN_TIMER_PHY_PDOWN);
2777 return;
2778 }
1da177e4
LT		 2779 }
2780 }
2781
c659c38b 2782 /* Link restablished? */
c0a87c22
OZ		 2783 if ((phy_status & MII_GS_LINK) && !netif_carrier_ok(dev)) {
2784 tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
c659c38b
SA		 2785 printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
2786 dev->name);
7d17c1d6 2787 netif_carrier_on(dev);
c659c38b 2788 }
c0a87c22
OZ		 2789 priv->media_timer.expires = jiffies + HZ;
2790 add_timer(&priv->media_timer);
6aa20a22 2791}
1da177e4 2792
1da177e4
LT		 2793
2794/*****************************************************************************
2795******************************************************************************
2796
c659c38b 2797ThunderLAN driver MII routines
1da177e4 2798
c659c38b
SA		 2799these routines are based on the information in chap. 2 of the
2800"ThunderLAN Programmer's Guide", pp. 15-24.
1da177e4
LT		 2801
2802******************************************************************************
2803*****************************************************************************/
2804
2805
c659c38b 2806/***************************************************************
beca9282 2807 * __tlan_mii_read_reg
c659c38b
SA		 2808 *
2809 * Returns:
2810 * false if ack received ok
2811 * true if no ack received or other error
2812 *
2813 * Parms:
2814 * dev The device structure containing
2815 * The io address and interrupt count
2816 * for this device.
2817 * phy The address of the PHY to be queried.
2818 * reg The register whose contents are to be
2819 * retrieved.
2820 * val A pointer to a variable to store the
2821 * retrieved value.
2822 *
2823 * This function uses the TLAN's MII bus to retrieve the contents
2824 * of a given register on a PHY. It sends the appropriate info
2825 * and then reads the 16-bit register value from the MII bus via
2826 * the TLAN SIO register.
2827 *
2828 **************************************************************/
2829
2830static bool
beca9282 2831__tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg, u16 *val)
1da177e4
LT		 2832{
2833 u8 nack;
2834 u16 sio, tmp;
c659c38b 2835 u32 i;
37fce430 2836 bool err;
1da177e4 2837 int minten;
c659c38b 2838 struct tlan_priv *priv = netdev_priv(dev);
beca9282
SAS		 2839
2840 lockdep_assert_held(&priv->lock);
1da177e4 2841
37fce430 2842 err = false;
1da177e4
LT		 2843 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2844 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 2845
c659c38b 2846 tlan_mii_sync(dev->base_addr);
1da177e4 2847
c659c38b
SA		 2848 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
2849 if (minten)
2850 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 2851
c659c38b
SA		 2852 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
2853 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* read (10b) */
2854 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
2855 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4
LT		 2856
2857
c659c38b 2858 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio); /* change direction */
1da177e4 2859
c659c38b
SA		 2860 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* clock idle bit */
2861 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2862 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* wait 300ns */
1da177e4 2863
c659c38b
SA		 2864 nack = tlan_get_bit(TLAN_NET_SIO_MDATA, sio); /* check for ACK */
2865 tlan_set_bit(TLAN_NET_SIO_MCLK, sio); /* finish ACK */
2866 if (nack) { /* no ACK, so fake it */
1da177e4 2867 for (i = 0; i < 16; i++) {
c659c38b
SA		 2868 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2869 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2870 }
2871 tmp = 0xffff;
37fce430 2872 err = true;
1da177e4
LT		 2873 } else { /* ACK, so read data */
2874 for (tmp = 0, i = 0x8000; i; i >>= 1) {
c659c38b
SA		 2875 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2876 if (tlan_get_bit(TLAN_NET_SIO_MDATA, sio))
1da177e4 2877 tmp |= i;
c659c38b 2878 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2879 }
2880 }
2881
2882
c659c38b
SA		 2883 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
2884 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 2885
c659c38b
SA		 2886 if (minten)
2887 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4
LT		 2888
2889 *val = tmp;
6aa20a22 2890
1da177e4 2891 return err;
c659c38b 2892}
1da177e4 2893
beca9282
SAS		 2894static void tlan_mii_read_reg(struct net_device *dev, u16 phy, u16 reg,
2895 u16 *val)
2896{
2897 struct tlan_priv *priv = netdev_priv(dev);
2898 unsigned long flags;
1da177e4 2899
beca9282
SAS		 2900 spin_lock_irqsave(&priv->lock, flags);
2901 __tlan_mii_read_reg(dev, phy, reg, val);
2902 spin_unlock_irqrestore(&priv->lock, flags);
2903}
1da177e4 2904
c659c38b
SA		 2905/***************************************************************
2906 * tlan_mii_send_data
2907 *
2908 * Returns:
2909 * Nothing
2910 * Parms:
2911 * base_port The base IO port of the adapter in
2912 * question.
2913 * dev The address of the PHY to be queried.
2914 * data The value to be placed on the MII bus.
2915 * num_bits The number of bits in data that are to
2916 * be placed on the MII bus.
2917 *
2918 * This function sends on sequence of bits on the MII
2919 * configuration bus.
2920 *
2921 **************************************************************/
1da177e4 2922
c659c38b 2923static void tlan_mii_send_data(u16 base_port, u32 data, unsigned num_bits)
1da177e4
LT		 2924{
2925 u16 sio;
2926 u32 i;
2927
c659c38b 2928 if (num_bits == 0)
1da177e4
LT		 2929 return;
2930
c659c38b 2931 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4 2932 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
c659c38b 2933 tlan_set_bit(TLAN_NET_SIO_MTXEN, sio);
1da177e4 2934
c659c38b
SA		 2935 for (i = (0x1 << (num_bits - 1)); i; i >>= 1) {
2936 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2937 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
2938 if (data & i)
2939 tlan_set_bit(TLAN_NET_SIO_MDATA, sio);
1da177e4 2940 else
c659c38b
SA		 2941 tlan_clear_bit(TLAN_NET_SIO_MDATA, sio);
2942 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
2943 (void) tlan_get_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2944 }
2945
c659c38b 2946}
1da177e4
LT		 2947
2948
2949
2950
c659c38b
SA		 2951/***************************************************************
2952 * TLan_MiiSync
2953 *
2954 * Returns:
2955 * Nothing
2956 * Parms:
2957 * base_port The base IO port of the adapter in
2958 * question.
2959 *
2960 * This functions syncs all PHYs in terms of the MII configuration
2961 * bus.
2962 *
2963 **************************************************************/
1da177e4 2964
c659c38b 2965static void tlan_mii_sync(u16 base_port)
1da177e4
LT		 2966{
2967 int i;
2968 u16 sio;
2969
c659c38b 2970 outw(TLAN_NET_SIO, base_port + TLAN_DIO_ADR);
1da177e4
LT		 2971 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2972
c659c38b
SA		 2973 tlan_clear_bit(TLAN_NET_SIO_MTXEN, sio);
2974 for (i = 0; i < 32; i++) {
2975 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio);
2976 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4
LT		 2977 }
2978
c659c38b 2979}
1da177e4
LT		 2980
2981
2982
2983
c659c38b 2984/***************************************************************
beca9282 2985 * __tlan_mii_write_reg
c659c38b
SA		 2986 *
2987 * Returns:
2988 * Nothing
2989 * Parms:
2990 * dev The device structure for the device
2991 * to write to.
2992 * phy The address of the PHY to be written to.
2993 * reg The register whose contents are to be
2994 * written.
2995 * val The value to be written to the register.
2996 *
2997 * This function uses the TLAN's MII bus to write the contents of a
2998 * given register on a PHY. It sends the appropriate info and then
2999 * writes the 16-bit register value from the MII configuration bus
3000 * via the TLAN SIO register.
3001 *
3002 **************************************************************/
1da177e4 3003
c659c38b 3004static void
beca9282 3005__tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
1da177e4
LT		 3006{
3007 u16 sio;
3008 int minten;
c659c38b 3009 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3010
beca9282
SAS		 3011 lockdep_assert_held(&priv->lock);
3012
1da177e4
LT		 3013 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3014 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
6aa20a22 3015
c659c38b 3016 tlan_mii_sync(dev->base_addr);
1da177e4 3017
c659c38b
SA		 3018 minten = tlan_get_bit(TLAN_NET_SIO_MINTEN, sio);
3019 if (minten)
3020 tlan_clear_bit(TLAN_NET_SIO_MINTEN, sio);
1da177e4 3021
c659c38b
SA		 3022 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* start (01b) */
3023 tlan_mii_send_data(dev->base_addr, 0x1, 2); /* write (01b) */
3024 tlan_mii_send_data(dev->base_addr, phy, 5); /* device # */
3025 tlan_mii_send_data(dev->base_addr, reg, 5); /* register # */
1da177e4 3026
c659c38b
SA		 3027 tlan_mii_send_data(dev->base_addr, 0x2, 2); /* send ACK */
3028 tlan_mii_send_data(dev->base_addr, val, 16); /* send data */
1da177e4 3029
c659c38b
SA		 3030 tlan_clear_bit(TLAN_NET_SIO_MCLK, sio); /* idle cycle */
3031 tlan_set_bit(TLAN_NET_SIO_MCLK, sio);
1da177e4 3032
c659c38b
SA		 3033 if (minten)
3034 tlan_set_bit(TLAN_NET_SIO_MINTEN, sio);
6aa20a22 3035
c659c38b 3036}
1da177e4 3037
beca9282
SAS		 3038static void
3039tlan_mii_write_reg(struct net_device *dev, u16 phy, u16 reg, u16 val)
3040{
3041 struct tlan_priv *priv = netdev_priv(dev);
3042 unsigned long flags;
1da177e4 3043
beca9282
SAS		 3044 spin_lock_irqsave(&priv->lock, flags);
3045 __tlan_mii_write_reg(dev, phy, reg, val);
3046 spin_unlock_irqrestore(&priv->lock, flags);
3047}
1da177e4
LT		 3048
3049
3050/*****************************************************************************
3051******************************************************************************
3052
c659c38b 3053ThunderLAN driver eeprom routines
1da177e4 3054
c659c38b
SA		 3055the Compaq netelligent 10 and 10/100 cards use a microchip 24C02A
3056EEPROM. these functions are based on information in microchip's
3057data sheet. I don't know how well this functions will work with
3058other Eeproms.
1da177e4
LT		 3059
3060******************************************************************************
3061*****************************************************************************/
3062
3063
c659c38b
SA		 3064/***************************************************************
3065 * tlan_ee_send_start
3066 *
3067 * Returns:
3068 * Nothing
3069 * Parms:
3070 * io_base The IO port base address for the
3071 * TLAN device with the EEPROM to
3072 * use.
3073 *
3074 * This function sends a start cycle to an EEPROM attached
3075 * to a TLAN chip.
3076 *
3077 **************************************************************/
3078
3079static void tlan_ee_send_start(u16 io_base)
1da177e4
LT		 3080{
3081 u16 sio;
3082
c659c38b 3083 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3084 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3085
c659c38b
SA		 3086 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3087 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3088 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3089 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3090 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3091
3092}
3093
3094
3095
3096
3097/***************************************************************
3098 * tlan_ee_send_byte
3099 *
3100 * Returns:
3101 * If the correct ack was received, 0, otherwise 1
3102 * Parms: io_base The IO port base address for the
3103 * TLAN device with the EEPROM to
3104 * use.
3105 * data The 8 bits of information to
3106 * send to the EEPROM.
3107 * stop If TLAN_EEPROM_STOP is passed, a
3108 * stop cycle is sent after the
3109 * byte is sent after the ack is
3110 * read.
3111 *
3112 * This function sends a byte on the serial EEPROM line,
3113 * driving the clock to send each bit. The function then
3114 * reverses transmission direction and reads an acknowledge
3115 * bit.
3116 *
3117 **************************************************************/
3118
3119static int tlan_ee_send_byte(u16 io_base, u8 data, int stop)
1da177e4
LT		 3120{
3121 int err;
3122 u8 place;
3123 u16 sio;
3124
c659c38b 3125 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3126 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3127
3128 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3129 for (place = 0x80; place != 0; place >>= 1) {
3130 if (place & data)
3131 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4 3132 else
c659c38b
SA		 3133 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3134 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3135 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3136 }
c659c38b
SA		 3137 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3138 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3139 err = tlan_get_bit(TLAN_NET_SIO_EDATA, sio);
3140 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
3141 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
1da177e4 3142
c659c38b 3143 if ((!err) && stop) {
dfc2c0a6 3144 /* STOP, raise data while clock is high */
c659c38b
SA		 3145 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3146 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3147 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
1da177e4
LT		 3148 }
3149
807540ba 3150 return err;
1da177e4 3151
c659c38b
SA		 3152}
3153
3154
3155
3156
3157/***************************************************************
3158 * tlan_ee_receive_byte
3159 *
3160 * Returns:
3161 * Nothing
3162 * Parms:
3163 * io_base The IO port base address for the
3164 * TLAN device with the EEPROM to
3165 * use.
3166 * data An address to a char to hold the
3167 * data sent from the EEPROM.
3168 * stop If TLAN_EEPROM_STOP is passed, a
3169 * stop cycle is sent after the
3170 * byte is received, and no ack is
3171 * sent.
3172 *
3173 * This function receives 8 bits of data from the EEPROM
3174 * over the serial link. It then sends and ack bit, or no
3175 * ack and a stop bit. This function is used to retrieve
3176 * data after the address of a byte in the EEPROM has been
3177 * sent.
3178 *
3179 **************************************************************/
3180
3181static void tlan_ee_receive_byte(u16 io_base, u8 *data, int stop)
1da177e4
LT		 3182{
3183 u8 place;
3184 u16 sio;
3185
c659c38b 3186 outw(TLAN_NET_SIO, io_base + TLAN_DIO_ADR);
1da177e4
LT		 3187 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3188 *data = 0;
3189
3190 /* Assume clock is low, tx is enabled; */
c659c38b
SA		 3191 tlan_clear_bit(TLAN_NET_SIO_ETXEN, sio);
3192 for (place = 0x80; place; place >>= 1) {
3193 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3194 if (tlan_get_bit(TLAN_NET_SIO_EDATA, sio))
1da177e4 3195 *data |= place;
c659c38b 3196 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4
LT		 3197 }
3198
c659c38b
SA		 3199 tlan_set_bit(TLAN_NET_SIO_ETXEN, sio);
3200 if (!stop) {
3201 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio); /* ack = 0 */
3202 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3203 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
1da177e4 3204 } else {
c659c38b
SA		 3205 tlan_set_bit(TLAN_NET_SIO_EDATA, sio); /* no ack = 1 (?) */
3206 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3207 tlan_clear_bit(TLAN_NET_SIO_ECLOK, sio);
dfc2c0a6 3208 /* STOP, raise data while clock is high */
c659c38b
SA		 3209 tlan_clear_bit(TLAN_NET_SIO_EDATA, sio);
3210 tlan_set_bit(TLAN_NET_SIO_ECLOK, sio);
3211 tlan_set_bit(TLAN_NET_SIO_EDATA, sio);
3212 }
3213
3214}
3215
3216
3217
3218
3219/***************************************************************
3220 * tlan_ee_read_byte
3221 *
3222 * Returns:
3223 * No error = 0, else, the stage at which the error
3224 * occurred.
3225 * Parms:
3226 * io_base The IO port base address for the
3227 * TLAN device with the EEPROM to
3228 * use.
3229 * ee_addr The address of the byte in the
3230 * EEPROM whose contents are to be
3231 * retrieved.
3232 * data An address to a char to hold the
3233 * data obtained from the EEPROM.
3234 *
3235 * This function reads a byte of information from an byte
3236 * cell in the EEPROM.
3237 *
3238 **************************************************************/
3239
3240static int tlan_ee_read_byte(struct net_device *dev, u8 ee_addr, u8 *data)
1da177e4
LT		 3241{
3242 int err;
c659c38b 3243 struct tlan_priv *priv = netdev_priv(dev);
1da177e4 3244 unsigned long flags = 0;
c659c38b 3245 int ret = 0;
1da177e4
LT		 3246
3247 spin_lock_irqsave(&priv->lock, flags);
3248
c659c38b
SA		 3249 tlan_ee_send_start(dev->base_addr);
3250 err = tlan_ee_send_byte(dev->base_addr, 0xa0, TLAN_EEPROM_ACK);
3251 if (err) {
3252 ret = 1;
1da177e4
LT		 3253 goto fail;
3254 }
c659c38b
SA		 3255 err = tlan_ee_send_byte(dev->base_addr, ee_addr, TLAN_EEPROM_ACK);
3256 if (err) {
3257 ret = 2;
1da177e4
LT		 3258 goto fail;
3259 }
c659c38b
SA		 3260 tlan_ee_send_start(dev->base_addr);
3261 err = tlan_ee_send_byte(dev->base_addr, 0xa1, TLAN_EEPROM_ACK);
3262 if (err) {
3263 ret = 3;
1da177e4
LT		 3264 goto fail;
3265 }
c659c38b 3266 tlan_ee_receive_byte(dev->base_addr, data, TLAN_EEPROM_STOP);
1da177e4
LT		 3267fail:
3268 spin_unlock_irqrestore(&priv->lock, flags);
3269
3270 return ret;
3271
c659c38b 3272}
1da177e4
LT		 3273
3274
3275
Linux 6.x block layer and io_uring tree(s)