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Merge git://git.infradead.org/mtd-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / amd8111e.c
1
2 /* Advanced Micro Devices Inc. AMD8111E Linux Network Driver
3 * Copyright (C) 2004 Advanced Micro Devices
4 *
5 *
6 * Copyright 2001,2002 Jeff Garzik <jgarzik@mandrakesoft.com> [ 8139cp.c,tg3.c ]
7 * Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com)[ tg3.c]
8 * Copyright 1996-1999 Thomas Bogendoerfer [ pcnet32.c ]
9 * Derived from the lance driver written 1993,1994,1995 by Donald Becker.
10 * Copyright 1993 United States Government as represented by the
11 * Director, National Security Agency.[ pcnet32.c ]
12 * Carsten Langgaard, carstenl@mips.com [ pcnet32.c ]
13 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
14 *
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 * USA
30
31 Module Name:
32
33 amd8111e.c
34
35 Abstract:
36
37 AMD8111 based 10/100 Ethernet Controller Driver.
38
39 Environment:
40
41 Kernel Mode
42
43 Revision History:
44 3.0.0
45 Initial Revision.
46 3.0.1
47 1. Dynamic interrupt coalescing.
48 2. Removed prev_stats.
49 3. MII support.
50 4. Dynamic IPG support
51 3.0.2 05/29/2003
52 1. Bug fix: Fixed failure to send jumbo packets larger than 4k.
53 2. Bug fix: Fixed VLAN support failure.
54 3. Bug fix: Fixed receive interrupt coalescing bug.
55 4. Dynamic IPG support is disabled by default.
56 3.0.3 06/05/2003
57 1. Bug fix: Fixed failure to close the interface if SMP is enabled.
58 3.0.4 12/09/2003
59 1. Added set_mac_address routine for bonding driver support.
60 2. Tested the driver for bonding support
61 3. Bug fix: Fixed mismach in actual receive buffer lenth and lenth
62 indicated to the h/w.
63 4. Modified amd8111e_rx() routine to receive all the received packets
64 in the first interrupt.
65 5. Bug fix: Corrected rx_errors reported in get_stats() function.
66 3.0.5 03/22/2004
67 1. Added NAPI support
68
69 */
70
71
72 #include <linux/module.h>
73 #include <linux/kernel.h>
74 #include <linux/types.h>
75 #include <linux/compiler.h>
76 #include <linux/slab.h>
77 #include <linux/delay.h>
78 #include <linux/init.h>
79 #include <linux/ioport.h>
80 #include <linux/pci.h>
81 #include <linux/netdevice.h>
82 #include <linux/etherdevice.h>
83 #include <linux/skbuff.h>
84 #include <linux/ethtool.h>
85 #include <linux/mii.h>
86 #include <linux/if_vlan.h>
87 #include <linux/ctype.h>
88 #include <linux/crc32.h>
89 #include <linux/dma-mapping.h>
90
91 #include <asm/system.h>
92 #include <asm/io.h>
93 #include <asm/byteorder.h>
94 #include <asm/uaccess.h>
95
96 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
97 #define AMD8111E_VLAN_TAG_USED 1
98 #else
99 #define AMD8111E_VLAN_TAG_USED 0
100 #endif
101
102 #include "amd8111e.h"
103 #define MODULE_NAME "amd8111e"
104 #define MODULE_VERS "3.0.7"
105 MODULE_AUTHOR("Advanced Micro Devices, Inc.");
106 MODULE_DESCRIPTION ("AMD8111 based 10/100 Ethernet Controller. Driver Version "MODULE_VERS);
107 MODULE_LICENSE("GPL");
108 MODULE_DEVICE_TABLE(pci, amd8111e_pci_tbl);
109 module_param_array(speed_duplex, int, NULL, 0);
110 MODULE_PARM_DESC(speed_duplex, "Set device speed and duplex modes, 0: Auto Negotitate, 1: 10Mbps Half Duplex, 2: 10Mbps Full Duplex, 3: 100Mbps Half Duplex, 4: 100Mbps Full Duplex");
111 module_param_array(coalesce, bool, NULL, 0);
112 MODULE_PARM_DESC(coalesce, "Enable or Disable interrupt coalescing, 1: Enable, 0: Disable");
113 module_param_array(dynamic_ipg, bool, NULL, 0);
114 MODULE_PARM_DESC(dynamic_ipg, "Enable or Disable dynamic IPG, 1: Enable, 0: Disable");
115
116 static struct pci_device_id amd8111e_pci_tbl[] = {
117
118 { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD8111E_7462,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
120 { 0, }
121
122 };
123 /*
124 This function will read the PHY registers.
125 */
126 static int amd8111e_read_phy(struct amd8111e_priv* lp, int phy_id, int reg, u32* val)
127 {
128 void __iomem *mmio = lp->mmio;
129 unsigned int reg_val;
130 unsigned int repeat= REPEAT_CNT;
131
132 reg_val = readl(mmio + PHY_ACCESS);
133 while (reg_val & PHY_CMD_ACTIVE)
134 reg_val = readl( mmio + PHY_ACCESS );
135
136 writel( PHY_RD_CMD | ((phy_id & 0x1f) << 21) |
137 ((reg & 0x1f) << 16), mmio +PHY_ACCESS);
138 do{
139 reg_val = readl(mmio + PHY_ACCESS);
140 udelay(30); /* It takes 30 us to read/write data */
141 } while (--repeat && (reg_val & PHY_CMD_ACTIVE));
142 if(reg_val & PHY_RD_ERR)
143 goto err_phy_read;
144
145 *val = reg_val & 0xffff;
146 return 0;
147 err_phy_read:
148 *val = 0;
149 return -EINVAL;
150
151 }
152
153 /*
154 This function will write into PHY registers.
155 */
156 static int amd8111e_write_phy(struct amd8111e_priv* lp,int phy_id, int reg, u32 val)
157 {
158 unsigned int repeat = REPEAT_CNT;
159 void __iomem *mmio = lp->mmio;
160 unsigned int reg_val;
161
162 reg_val = readl(mmio + PHY_ACCESS);
163 while (reg_val & PHY_CMD_ACTIVE)
164 reg_val = readl( mmio + PHY_ACCESS );
165
166 writel( PHY_WR_CMD | ((phy_id & 0x1f) << 21) |
167 ((reg & 0x1f) << 16)|val, mmio + PHY_ACCESS);
168
169 do{
170 reg_val = readl(mmio + PHY_ACCESS);
171 udelay(30); /* It takes 30 us to read/write the data */
172 } while (--repeat && (reg_val & PHY_CMD_ACTIVE));
173
174 if(reg_val & PHY_RD_ERR)
175 goto err_phy_write;
176
177 return 0;
178
179 err_phy_write:
180 return -EINVAL;
181
182 }
183 /*
184 This is the mii register read function provided to the mii interface.
185 */
186 static int amd8111e_mdio_read(struct net_device * dev, int phy_id, int reg_num)
187 {
188 struct amd8111e_priv* lp = netdev_priv(dev);
189 unsigned int reg_val;
190
191 amd8111e_read_phy(lp,phy_id,reg_num,&reg_val);
192 return reg_val;
193
194 }
195
196 /*
197 This is the mii register write function provided to the mii interface.
198 */
199 static void amd8111e_mdio_write(struct net_device * dev, int phy_id, int reg_num, int val)
200 {
201 struct amd8111e_priv* lp = netdev_priv(dev);
202
203 amd8111e_write_phy(lp, phy_id, reg_num, val);
204 }
205
206 /*
207 This function will set PHY speed. During initialization sets the original speed to 100 full.
208 */
209 static void amd8111e_set_ext_phy(struct net_device *dev)
210 {
211 struct amd8111e_priv *lp = netdev_priv(dev);
212 u32 bmcr,advert,tmp;
213
214 /* Determine mii register values to set the speed */
215 advert = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_ADVERTISE);
216 tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
217 switch (lp->ext_phy_option){
218
219 default:
220 case SPEED_AUTONEG: /* advertise all values */
221 tmp |= ( ADVERTISE_10HALF|ADVERTISE_10FULL|
222 ADVERTISE_100HALF|ADVERTISE_100FULL) ;
223 break;
224 case SPEED10_HALF:
225 tmp |= ADVERTISE_10HALF;
226 break;
227 case SPEED10_FULL:
228 tmp |= ADVERTISE_10FULL;
229 break;
230 case SPEED100_HALF:
231 tmp |= ADVERTISE_100HALF;
232 break;
233 case SPEED100_FULL:
234 tmp |= ADVERTISE_100FULL;
235 break;
236 }
237
238 if(advert != tmp)
239 amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_ADVERTISE, tmp);
240 /* Restart auto negotiation */
241 bmcr = amd8111e_mdio_read(dev, lp->ext_phy_addr, MII_BMCR);
242 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
243 amd8111e_mdio_write(dev, lp->ext_phy_addr, MII_BMCR, bmcr);
244
245 }
246
247 /*
248 This function will unmap skb->data space and will free
249 all transmit and receive skbuffs.
250 */
251 static int amd8111e_free_skbs(struct net_device *dev)
252 {
253 struct amd8111e_priv *lp = netdev_priv(dev);
254 struct sk_buff* rx_skbuff;
255 int i;
256
257 /* Freeing transmit skbs */
258 for(i = 0; i < NUM_TX_BUFFERS; i++){
259 if(lp->tx_skbuff[i]){
260 pci_unmap_single(lp->pci_dev,lp->tx_dma_addr[i], lp->tx_skbuff[i]->len,PCI_DMA_TODEVICE);
261 dev_kfree_skb (lp->tx_skbuff[i]);
262 lp->tx_skbuff[i] = NULL;
263 lp->tx_dma_addr[i] = 0;
264 }
265 }
266 /* Freeing previously allocated receive buffers */
267 for (i = 0; i < NUM_RX_BUFFERS; i++){
268 rx_skbuff = lp->rx_skbuff[i];
269 if(rx_skbuff != NULL){
270 pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[i],
271 lp->rx_buff_len - 2,PCI_DMA_FROMDEVICE);
272 dev_kfree_skb(lp->rx_skbuff[i]);
273 lp->rx_skbuff[i] = NULL;
274 lp->rx_dma_addr[i] = 0;
275 }
276 }
277
278 return 0;
279 }
280
281 /*
282 This will set the receive buffer length corresponding to the mtu size of networkinterface.
283 */
284 static inline void amd8111e_set_rx_buff_len(struct net_device* dev)
285 {
286 struct amd8111e_priv* lp = netdev_priv(dev);
287 unsigned int mtu = dev->mtu;
288
289 if (mtu > ETH_DATA_LEN){
290 /* MTU + ethernet header + FCS
291 + optional VLAN tag + skb reserve space 2 */
292
293 lp->rx_buff_len = mtu + ETH_HLEN + 10;
294 lp->options |= OPTION_JUMBO_ENABLE;
295 } else{
296 lp->rx_buff_len = PKT_BUFF_SZ;
297 lp->options &= ~OPTION_JUMBO_ENABLE;
298 }
299 }
300
301 /*
302 This function will free all the previously allocated buffers, determine new receive buffer length and will allocate new receive buffers. This function also allocates and initializes both the transmitter and receive hardware descriptors.
303 */
304 static int amd8111e_init_ring(struct net_device *dev)
305 {
306 struct amd8111e_priv *lp = netdev_priv(dev);
307 int i;
308
309 lp->rx_idx = lp->tx_idx = 0;
310 lp->tx_complete_idx = 0;
311 lp->tx_ring_idx = 0;
312
313
314 if(lp->opened)
315 /* Free previously allocated transmit and receive skbs */
316 amd8111e_free_skbs(dev);
317
318 else{
319 /* allocate the tx and rx descriptors */
320 if((lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
321 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,
322 &lp->tx_ring_dma_addr)) == NULL)
323
324 goto err_no_mem;
325
326 if((lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
327 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,
328 &lp->rx_ring_dma_addr)) == NULL)
329
330 goto err_free_tx_ring;
331
332 }
333 /* Set new receive buff size */
334 amd8111e_set_rx_buff_len(dev);
335
336 /* Allocating receive skbs */
337 for (i = 0; i < NUM_RX_BUFFERS; i++) {
338
339 if (!(lp->rx_skbuff[i] = dev_alloc_skb(lp->rx_buff_len))) {
340 /* Release previos allocated skbs */
341 for(--i; i >= 0 ;i--)
342 dev_kfree_skb(lp->rx_skbuff[i]);
343 goto err_free_rx_ring;
344 }
345 skb_reserve(lp->rx_skbuff[i],2);
346 }
347 /* Initilaizing receive descriptors */
348 for (i = 0; i < NUM_RX_BUFFERS; i++) {
349 lp->rx_dma_addr[i] = pci_map_single(lp->pci_dev,
350 lp->rx_skbuff[i]->data,lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
351
352 lp->rx_ring[i].buff_phy_addr = cpu_to_le32(lp->rx_dma_addr[i]);
353 lp->rx_ring[i].buff_count = cpu_to_le16(lp->rx_buff_len-2);
354 wmb();
355 lp->rx_ring[i].rx_flags = cpu_to_le16(OWN_BIT);
356 }
357
358 /* Initializing transmit descriptors */
359 for (i = 0; i < NUM_TX_RING_DR; i++) {
360 lp->tx_ring[i].buff_phy_addr = 0;
361 lp->tx_ring[i].tx_flags = 0;
362 lp->tx_ring[i].buff_count = 0;
363 }
364
365 return 0;
366
367 err_free_rx_ring:
368
369 pci_free_consistent(lp->pci_dev,
370 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,lp->rx_ring,
371 lp->rx_ring_dma_addr);
372
373 err_free_tx_ring:
374
375 pci_free_consistent(lp->pci_dev,
376 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,lp->tx_ring,
377 lp->tx_ring_dma_addr);
378
379 err_no_mem:
380 return -ENOMEM;
381 }
382 /* This function will set the interrupt coalescing according to the input arguments */
383 static int amd8111e_set_coalesce(struct net_device * dev, enum coal_mode cmod)
384 {
385 unsigned int timeout;
386 unsigned int event_count;
387
388 struct amd8111e_priv *lp = netdev_priv(dev);
389 void __iomem *mmio = lp->mmio;
390 struct amd8111e_coalesce_conf * coal_conf = &lp->coal_conf;
391
392
393 switch(cmod)
394 {
395 case RX_INTR_COAL :
396 timeout = coal_conf->rx_timeout;
397 event_count = coal_conf->rx_event_count;
398 if( timeout > MAX_TIMEOUT ||
399 event_count > MAX_EVENT_COUNT )
400 return -EINVAL;
401
402 timeout = timeout * DELAY_TIMER_CONV;
403 writel(VAL0|STINTEN, mmio+INTEN0);
404 writel((u32)DLY_INT_A_R0|( event_count<< 16 )|timeout,
405 mmio+DLY_INT_A);
406 break;
407
408 case TX_INTR_COAL :
409 timeout = coal_conf->tx_timeout;
410 event_count = coal_conf->tx_event_count;
411 if( timeout > MAX_TIMEOUT ||
412 event_count > MAX_EVENT_COUNT )
413 return -EINVAL;
414
415
416 timeout = timeout * DELAY_TIMER_CONV;
417 writel(VAL0|STINTEN,mmio+INTEN0);
418 writel((u32)DLY_INT_B_T0|( event_count<< 16 )|timeout,
419 mmio+DLY_INT_B);
420 break;
421
422 case DISABLE_COAL:
423 writel(0,mmio+STVAL);
424 writel(STINTEN, mmio+INTEN0);
425 writel(0, mmio +DLY_INT_B);
426 writel(0, mmio+DLY_INT_A);
427 break;
428 case ENABLE_COAL:
429 /* Start the timer */
430 writel((u32)SOFT_TIMER_FREQ, mmio+STVAL); /* 0.5 sec */
431 writel(VAL0|STINTEN, mmio+INTEN0);
432 break;
433 default:
434 break;
435
436 }
437 return 0;
438
439 }
440
441 /*
442 This function initializes the device registers and starts the device.
443 */
444 static int amd8111e_restart(struct net_device *dev)
445 {
446 struct amd8111e_priv *lp = netdev_priv(dev);
447 void __iomem *mmio = lp->mmio;
448 int i,reg_val;
449
450 /* stop the chip */
451 writel(RUN, mmio + CMD0);
452
453 if(amd8111e_init_ring(dev))
454 return -ENOMEM;
455
456 /* enable the port manager and set auto negotiation always */
457 writel((u32) VAL1|EN_PMGR, mmio + CMD3 );
458 writel((u32)XPHYANE|XPHYRST , mmio + CTRL2);
459
460 amd8111e_set_ext_phy(dev);
461
462 /* set control registers */
463 reg_val = readl(mmio + CTRL1);
464 reg_val &= ~XMTSP_MASK;
465 writel( reg_val| XMTSP_128 | CACHE_ALIGN, mmio + CTRL1 );
466
467 /* enable interrupt */
468 writel( APINT5EN | APINT4EN | APINT3EN | APINT2EN | APINT1EN |
469 APINT0EN | MIIPDTINTEN | MCCIINTEN | MCCINTEN | MREINTEN |
470 SPNDINTEN | MPINTEN | SINTEN | STINTEN, mmio + INTEN0);
471
472 writel(VAL3 | LCINTEN | VAL1 | TINTEN0 | VAL0 | RINTEN0, mmio + INTEN0);
473
474 /* initialize tx and rx ring base addresses */
475 writel((u32)lp->tx_ring_dma_addr,mmio + XMT_RING_BASE_ADDR0);
476 writel((u32)lp->rx_ring_dma_addr,mmio+ RCV_RING_BASE_ADDR0);
477
478 writew((u32)NUM_TX_RING_DR, mmio + XMT_RING_LEN0);
479 writew((u16)NUM_RX_RING_DR, mmio + RCV_RING_LEN0);
480
481 /* set default IPG to 96 */
482 writew((u32)DEFAULT_IPG,mmio+IPG);
483 writew((u32)(DEFAULT_IPG-IFS1_DELTA), mmio + IFS1);
484
485 if(lp->options & OPTION_JUMBO_ENABLE){
486 writel((u32)VAL2|JUMBO, mmio + CMD3);
487 /* Reset REX_UFLO */
488 writel( REX_UFLO, mmio + CMD2);
489 /* Should not set REX_UFLO for jumbo frames */
490 writel( VAL0 | APAD_XMT|REX_RTRY , mmio + CMD2);
491 }else{
492 writel( VAL0 | APAD_XMT | REX_RTRY|REX_UFLO, mmio + CMD2);
493 writel((u32)JUMBO, mmio + CMD3);
494 }
495
496 #if AMD8111E_VLAN_TAG_USED
497 writel((u32) VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3);
498 #endif
499 writel( VAL0 | APAD_XMT | REX_RTRY, mmio + CMD2 );
500
501 /* Setting the MAC address to the device */
502 for(i = 0; i < ETH_ADDR_LEN; i++)
503 writeb( dev->dev_addr[i], mmio + PADR + i );
504
505 /* Enable interrupt coalesce */
506 if(lp->options & OPTION_INTR_COAL_ENABLE){
507 printk(KERN_INFO "%s: Interrupt Coalescing Enabled.\n",
508 dev->name);
509 amd8111e_set_coalesce(dev,ENABLE_COAL);
510 }
511
512 /* set RUN bit to start the chip */
513 writel(VAL2 | RDMD0, mmio + CMD0);
514 writel(VAL0 | INTREN | RUN, mmio + CMD0);
515
516 /* To avoid PCI posting bug */
517 readl(mmio+CMD0);
518 return 0;
519 }
520 /*
521 This function clears necessary the device registers.
522 */
523 static void amd8111e_init_hw_default( struct amd8111e_priv* lp)
524 {
525 unsigned int reg_val;
526 unsigned int logic_filter[2] ={0,};
527 void __iomem *mmio = lp->mmio;
528
529
530 /* stop the chip */
531 writel(RUN, mmio + CMD0);
532
533 /* AUTOPOLL0 Register *//*TBD default value is 8100 in FPS */
534 writew( 0x8100 | lp->ext_phy_addr, mmio + AUTOPOLL0);
535
536 /* Clear RCV_RING_BASE_ADDR */
537 writel(0, mmio + RCV_RING_BASE_ADDR0);
538
539 /* Clear XMT_RING_BASE_ADDR */
540 writel(0, mmio + XMT_RING_BASE_ADDR0);
541 writel(0, mmio + XMT_RING_BASE_ADDR1);
542 writel(0, mmio + XMT_RING_BASE_ADDR2);
543 writel(0, mmio + XMT_RING_BASE_ADDR3);
544
545 /* Clear CMD0 */
546 writel(CMD0_CLEAR,mmio + CMD0);
547
548 /* Clear CMD2 */
549 writel(CMD2_CLEAR, mmio +CMD2);
550
551 /* Clear CMD7 */
552 writel(CMD7_CLEAR , mmio + CMD7);
553
554 /* Clear DLY_INT_A and DLY_INT_B */
555 writel(0x0, mmio + DLY_INT_A);
556 writel(0x0, mmio + DLY_INT_B);
557
558 /* Clear FLOW_CONTROL */
559 writel(0x0, mmio + FLOW_CONTROL);
560
561 /* Clear INT0 write 1 to clear register */
562 reg_val = readl(mmio + INT0);
563 writel(reg_val, mmio + INT0);
564
565 /* Clear STVAL */
566 writel(0x0, mmio + STVAL);
567
568 /* Clear INTEN0 */
569 writel( INTEN0_CLEAR, mmio + INTEN0);
570
571 /* Clear LADRF */
572 writel(0x0 , mmio + LADRF);
573
574 /* Set SRAM_SIZE & SRAM_BOUNDARY registers */
575 writel( 0x80010,mmio + SRAM_SIZE);
576
577 /* Clear RCV_RING0_LEN */
578 writel(0x0, mmio + RCV_RING_LEN0);
579
580 /* Clear XMT_RING0/1/2/3_LEN */
581 writel(0x0, mmio + XMT_RING_LEN0);
582 writel(0x0, mmio + XMT_RING_LEN1);
583 writel(0x0, mmio + XMT_RING_LEN2);
584 writel(0x0, mmio + XMT_RING_LEN3);
585
586 /* Clear XMT_RING_LIMIT */
587 writel(0x0, mmio + XMT_RING_LIMIT);
588
589 /* Clear MIB */
590 writew(MIB_CLEAR, mmio + MIB_ADDR);
591
592 /* Clear LARF */
593 amd8111e_writeq(*(u64*)logic_filter,mmio+LADRF);
594
595 /* SRAM_SIZE register */
596 reg_val = readl(mmio + SRAM_SIZE);
597
598 if(lp->options & OPTION_JUMBO_ENABLE)
599 writel( VAL2|JUMBO, mmio + CMD3);
600 #if AMD8111E_VLAN_TAG_USED
601 writel(VAL2|VSIZE|VL_TAG_DEL, mmio + CMD3 );
602 #endif
603 /* Set default value to CTRL1 Register */
604 writel(CTRL1_DEFAULT, mmio + CTRL1);
605
606 /* To avoid PCI posting bug */
607 readl(mmio + CMD2);
608
609 }
610
611 /*
612 This function disables the interrupt and clears all the pending
613 interrupts in INT0
614 */
615 static void amd8111e_disable_interrupt(struct amd8111e_priv* lp)
616 {
617 u32 intr0;
618
619 /* Disable interrupt */
620 writel(INTREN, lp->mmio + CMD0);
621
622 /* Clear INT0 */
623 intr0 = readl(lp->mmio + INT0);
624 writel(intr0, lp->mmio + INT0);
625
626 /* To avoid PCI posting bug */
627 readl(lp->mmio + INT0);
628
629 }
630
631 /*
632 This function stops the chip.
633 */
634 static void amd8111e_stop_chip(struct amd8111e_priv* lp)
635 {
636 writel(RUN, lp->mmio + CMD0);
637
638 /* To avoid PCI posting bug */
639 readl(lp->mmio + CMD0);
640 }
641
642 /*
643 This function frees the transmiter and receiver descriptor rings.
644 */
645 static void amd8111e_free_ring(struct amd8111e_priv* lp)
646 {
647 /* Free transmit and receive descriptor rings */
648 if(lp->rx_ring){
649 pci_free_consistent(lp->pci_dev,
650 sizeof(struct amd8111e_rx_dr)*NUM_RX_RING_DR,
651 lp->rx_ring, lp->rx_ring_dma_addr);
652 lp->rx_ring = NULL;
653 }
654
655 if(lp->tx_ring){
656 pci_free_consistent(lp->pci_dev,
657 sizeof(struct amd8111e_tx_dr)*NUM_TX_RING_DR,
658 lp->tx_ring, lp->tx_ring_dma_addr);
659
660 lp->tx_ring = NULL;
661 }
662
663 }
664 #if AMD8111E_VLAN_TAG_USED
665 /*
666 This is the receive indication function for packets with vlan tag.
667 */
668 static int amd8111e_vlan_rx(struct amd8111e_priv *lp, struct sk_buff *skb, u16 vlan_tag)
669 {
670 return vlan_hwaccel_receive_skb(skb, lp->vlgrp,vlan_tag);
671 }
672 #endif
673
674 /*
675 This function will free all the transmit skbs that are actually transmitted by the device. It will check the ownership of the skb before freeing the skb.
676 */
677 static int amd8111e_tx(struct net_device *dev)
678 {
679 struct amd8111e_priv* lp = netdev_priv(dev);
680 int tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK;
681 int status;
682 /* Complete all the transmit packet */
683 while (lp->tx_complete_idx != lp->tx_idx){
684 tx_index = lp->tx_complete_idx & TX_RING_DR_MOD_MASK;
685 status = le16_to_cpu(lp->tx_ring[tx_index].tx_flags);
686
687 if(status & OWN_BIT)
688 break; /* It still hasn't been Txed */
689
690 lp->tx_ring[tx_index].buff_phy_addr = 0;
691
692 /* We must free the original skb */
693 if (lp->tx_skbuff[tx_index]) {
694 pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[tx_index],
695 lp->tx_skbuff[tx_index]->len,
696 PCI_DMA_TODEVICE);
697 dev_kfree_skb_irq (lp->tx_skbuff[tx_index]);
698 lp->tx_skbuff[tx_index] = NULL;
699 lp->tx_dma_addr[tx_index] = 0;
700 }
701 lp->tx_complete_idx++;
702 /*COAL update tx coalescing parameters */
703 lp->coal_conf.tx_packets++;
704 lp->coal_conf.tx_bytes +=
705 le16_to_cpu(lp->tx_ring[tx_index].buff_count);
706
707 if (netif_queue_stopped(dev) &&
708 lp->tx_complete_idx > lp->tx_idx - NUM_TX_BUFFERS +2){
709 /* The ring is no longer full, clear tbusy. */
710 /* lp->tx_full = 0; */
711 netif_wake_queue (dev);
712 }
713 }
714 return 0;
715 }
716
717 /* This function handles the driver receive operation in polling mode */
718 static int amd8111e_rx_poll(struct napi_struct *napi, int budget)
719 {
720 struct amd8111e_priv *lp = container_of(napi, struct amd8111e_priv, napi);
721 struct net_device *dev = lp->amd8111e_net_dev;
722 int rx_index = lp->rx_idx & RX_RING_DR_MOD_MASK;
723 void __iomem *mmio = lp->mmio;
724 struct sk_buff *skb,*new_skb;
725 int min_pkt_len, status;
726 unsigned int intr0;
727 int num_rx_pkt = 0;
728 short pkt_len;
729 #if AMD8111E_VLAN_TAG_USED
730 short vtag;
731 #endif
732 int rx_pkt_limit = budget;
733 unsigned long flags;
734
735 do{
736 /* process receive packets until we use the quota*/
737 /* If we own the next entry, it's a new packet. Send it up. */
738 while(1) {
739 status = le16_to_cpu(lp->rx_ring[rx_index].rx_flags);
740 if (status & OWN_BIT)
741 break;
742
743 /*
744 * There is a tricky error noted by John Murphy,
745 * <murf@perftech.com> to Russ Nelson: Even with
746 * full-sized * buffers it's possible for a
747 * jabber packet to use two buffers, with only
748 * the last correctly noting the error.
749 */
750
751 if(status & ERR_BIT) {
752 /* reseting flags */
753 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
754 goto err_next_pkt;
755 }
756 /* check for STP and ENP */
757 if(!((status & STP_BIT) && (status & ENP_BIT))){
758 /* reseting flags */
759 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
760 goto err_next_pkt;
761 }
762 pkt_len = le16_to_cpu(lp->rx_ring[rx_index].msg_count) - 4;
763
764 #if AMD8111E_VLAN_TAG_USED
765 vtag = status & TT_MASK;
766 /*MAC will strip vlan tag*/
767 if(lp->vlgrp != NULL && vtag !=0)
768 min_pkt_len =MIN_PKT_LEN - 4;
769 else
770 #endif
771 min_pkt_len =MIN_PKT_LEN;
772
773 if (pkt_len < min_pkt_len) {
774 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
775 lp->drv_rx_errors++;
776 goto err_next_pkt;
777 }
778 if(--rx_pkt_limit < 0)
779 goto rx_not_empty;
780 if(!(new_skb = dev_alloc_skb(lp->rx_buff_len))){
781 /* if allocation fail,
782 ignore that pkt and go to next one */
783 lp->rx_ring[rx_index].rx_flags &= RESET_RX_FLAGS;
784 lp->drv_rx_errors++;
785 goto err_next_pkt;
786 }
787
788 skb_reserve(new_skb, 2);
789 skb = lp->rx_skbuff[rx_index];
790 pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[rx_index],
791 lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
792 skb_put(skb, pkt_len);
793 lp->rx_skbuff[rx_index] = new_skb;
794 lp->rx_dma_addr[rx_index] = pci_map_single(lp->pci_dev,
795 new_skb->data,
796 lp->rx_buff_len-2,
797 PCI_DMA_FROMDEVICE);
798
799 skb->protocol = eth_type_trans(skb, dev);
800
801 #if AMD8111E_VLAN_TAG_USED
802 if(lp->vlgrp != NULL && (vtag == TT_VLAN_TAGGED)){
803 amd8111e_vlan_rx(lp, skb,
804 le16_to_cpu(lp->rx_ring[rx_index].tag_ctrl_info));
805 } else
806 #endif
807 netif_receive_skb(skb);
808 /*COAL update rx coalescing parameters*/
809 lp->coal_conf.rx_packets++;
810 lp->coal_conf.rx_bytes += pkt_len;
811 num_rx_pkt++;
812 dev->last_rx = jiffies;
813
814 err_next_pkt:
815 lp->rx_ring[rx_index].buff_phy_addr
816 = cpu_to_le32(lp->rx_dma_addr[rx_index]);
817 lp->rx_ring[rx_index].buff_count =
818 cpu_to_le16(lp->rx_buff_len-2);
819 wmb();
820 lp->rx_ring[rx_index].rx_flags |= cpu_to_le16(OWN_BIT);
821 rx_index = (++lp->rx_idx) & RX_RING_DR_MOD_MASK;
822 }
823 /* Check the interrupt status register for more packets in the
824 mean time. Process them since we have not used up our quota.*/
825
826 intr0 = readl(mmio + INT0);
827 /*Ack receive packets */
828 writel(intr0 & RINT0,mmio + INT0);
829
830 } while(intr0 & RINT0);
831
832 if (rx_pkt_limit > 0) {
833 /* Receive descriptor is empty now */
834 spin_lock_irqsave(&lp->lock, flags);
835 __netif_rx_complete(dev, napi);
836 writel(VAL0|RINTEN0, mmio + INTEN0);
837 writel(VAL2 | RDMD0, mmio + CMD0);
838 spin_unlock_irqrestore(&lp->lock, flags);
839 }
840
841 rx_not_empty:
842 return num_rx_pkt;
843 }
844
845 /*
846 This function will indicate the link status to the kernel.
847 */
848 static int amd8111e_link_change(struct net_device* dev)
849 {
850 struct amd8111e_priv *lp = netdev_priv(dev);
851 int status0,speed;
852
853 /* read the link change */
854 status0 = readl(lp->mmio + STAT0);
855
856 if(status0 & LINK_STATS){
857 if(status0 & AUTONEG_COMPLETE)
858 lp->link_config.autoneg = AUTONEG_ENABLE;
859 else
860 lp->link_config.autoneg = AUTONEG_DISABLE;
861
862 if(status0 & FULL_DPLX)
863 lp->link_config.duplex = DUPLEX_FULL;
864 else
865 lp->link_config.duplex = DUPLEX_HALF;
866 speed = (status0 & SPEED_MASK) >> 7;
867 if(speed == PHY_SPEED_10)
868 lp->link_config.speed = SPEED_10;
869 else if(speed == PHY_SPEED_100)
870 lp->link_config.speed = SPEED_100;
871
872 printk(KERN_INFO "%s: Link is Up. Speed is %s Mbps %s Duplex\n", dev->name,
873 (lp->link_config.speed == SPEED_100) ? "100": "10",
874 (lp->link_config.duplex == DUPLEX_FULL)? "Full": "Half");
875 netif_carrier_on(dev);
876 }
877 else{
878 lp->link_config.speed = SPEED_INVALID;
879 lp->link_config.duplex = DUPLEX_INVALID;
880 lp->link_config.autoneg = AUTONEG_INVALID;
881 printk(KERN_INFO "%s: Link is Down.\n",dev->name);
882 netif_carrier_off(dev);
883 }
884
885 return 0;
886 }
887 /*
888 This function reads the mib counters.
889 */
890 static int amd8111e_read_mib(void __iomem *mmio, u8 MIB_COUNTER)
891 {
892 unsigned int status;
893 unsigned int data;
894 unsigned int repeat = REPEAT_CNT;
895
896 writew( MIB_RD_CMD | MIB_COUNTER, mmio + MIB_ADDR);
897 do {
898 status = readw(mmio + MIB_ADDR);
899 udelay(2); /* controller takes MAX 2 us to get mib data */
900 }
901 while (--repeat && (status & MIB_CMD_ACTIVE));
902
903 data = readl(mmio + MIB_DATA);
904 return data;
905 }
906
907 /*
908 This function reads the mib registers and returns the hardware statistics. It updates previous internal driver statistics with new values.
909 */
910 static struct net_device_stats *amd8111e_get_stats(struct net_device * dev)
911 {
912 struct amd8111e_priv *lp = netdev_priv(dev);
913 void __iomem *mmio = lp->mmio;
914 unsigned long flags;
915 /* struct net_device_stats *prev_stats = &lp->prev_stats; */
916 struct net_device_stats* new_stats = &lp->stats;
917
918 if(!lp->opened)
919 return &lp->stats;
920 spin_lock_irqsave (&lp->lock, flags);
921
922 /* stats.rx_packets */
923 new_stats->rx_packets = amd8111e_read_mib(mmio, rcv_broadcast_pkts)+
924 amd8111e_read_mib(mmio, rcv_multicast_pkts)+
925 amd8111e_read_mib(mmio, rcv_unicast_pkts);
926
927 /* stats.tx_packets */
928 new_stats->tx_packets = amd8111e_read_mib(mmio, xmt_packets);
929
930 /*stats.rx_bytes */
931 new_stats->rx_bytes = amd8111e_read_mib(mmio, rcv_octets);
932
933 /* stats.tx_bytes */
934 new_stats->tx_bytes = amd8111e_read_mib(mmio, xmt_octets);
935
936 /* stats.rx_errors */
937 /* hw errors + errors driver reported */
938 new_stats->rx_errors = amd8111e_read_mib(mmio, rcv_undersize_pkts)+
939 amd8111e_read_mib(mmio, rcv_fragments)+
940 amd8111e_read_mib(mmio, rcv_jabbers)+
941 amd8111e_read_mib(mmio, rcv_alignment_errors)+
942 amd8111e_read_mib(mmio, rcv_fcs_errors)+
943 amd8111e_read_mib(mmio, rcv_miss_pkts)+
944 lp->drv_rx_errors;
945
946 /* stats.tx_errors */
947 new_stats->tx_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts);
948
949 /* stats.rx_dropped*/
950 new_stats->rx_dropped = amd8111e_read_mib(mmio, rcv_miss_pkts);
951
952 /* stats.tx_dropped*/
953 new_stats->tx_dropped = amd8111e_read_mib(mmio, xmt_underrun_pkts);
954
955 /* stats.multicast*/
956 new_stats->multicast = amd8111e_read_mib(mmio, rcv_multicast_pkts);
957
958 /* stats.collisions*/
959 new_stats->collisions = amd8111e_read_mib(mmio, xmt_collisions);
960
961 /* stats.rx_length_errors*/
962 new_stats->rx_length_errors =
963 amd8111e_read_mib(mmio, rcv_undersize_pkts)+
964 amd8111e_read_mib(mmio, rcv_oversize_pkts);
965
966 /* stats.rx_over_errors*/
967 new_stats->rx_over_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
968
969 /* stats.rx_crc_errors*/
970 new_stats->rx_crc_errors = amd8111e_read_mib(mmio, rcv_fcs_errors);
971
972 /* stats.rx_frame_errors*/
973 new_stats->rx_frame_errors =
974 amd8111e_read_mib(mmio, rcv_alignment_errors);
975
976 /* stats.rx_fifo_errors */
977 new_stats->rx_fifo_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
978
979 /* stats.rx_missed_errors */
980 new_stats->rx_missed_errors = amd8111e_read_mib(mmio, rcv_miss_pkts);
981
982 /* stats.tx_aborted_errors*/
983 new_stats->tx_aborted_errors =
984 amd8111e_read_mib(mmio, xmt_excessive_collision);
985
986 /* stats.tx_carrier_errors*/
987 new_stats->tx_carrier_errors =
988 amd8111e_read_mib(mmio, xmt_loss_carrier);
989
990 /* stats.tx_fifo_errors*/
991 new_stats->tx_fifo_errors = amd8111e_read_mib(mmio, xmt_underrun_pkts);
992
993 /* stats.tx_window_errors*/
994 new_stats->tx_window_errors =
995 amd8111e_read_mib(mmio, xmt_late_collision);
996
997 /* Reset the mibs for collecting new statistics */
998 /* writew(MIB_CLEAR, mmio + MIB_ADDR);*/
999
1000 spin_unlock_irqrestore (&lp->lock, flags);
1001
1002 return new_stats;
1003 }
1004 /* This function recalculate the interrupt coalescing mode on every interrupt
1005 according to the datarate and the packet rate.
1006 */
1007 static int amd8111e_calc_coalesce(struct net_device *dev)
1008 {
1009 struct amd8111e_priv *lp = netdev_priv(dev);
1010 struct amd8111e_coalesce_conf * coal_conf = &lp->coal_conf;
1011 int tx_pkt_rate;
1012 int rx_pkt_rate;
1013 int tx_data_rate;
1014 int rx_data_rate;
1015 int rx_pkt_size;
1016 int tx_pkt_size;
1017
1018 tx_pkt_rate = coal_conf->tx_packets - coal_conf->tx_prev_packets;
1019 coal_conf->tx_prev_packets = coal_conf->tx_packets;
1020
1021 tx_data_rate = coal_conf->tx_bytes - coal_conf->tx_prev_bytes;
1022 coal_conf->tx_prev_bytes = coal_conf->tx_bytes;
1023
1024 rx_pkt_rate = coal_conf->rx_packets - coal_conf->rx_prev_packets;
1025 coal_conf->rx_prev_packets = coal_conf->rx_packets;
1026
1027 rx_data_rate = coal_conf->rx_bytes - coal_conf->rx_prev_bytes;
1028 coal_conf->rx_prev_bytes = coal_conf->rx_bytes;
1029
1030 if(rx_pkt_rate < 800){
1031 if(coal_conf->rx_coal_type != NO_COALESCE){
1032
1033 coal_conf->rx_timeout = 0x0;
1034 coal_conf->rx_event_count = 0;
1035 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1036 coal_conf->rx_coal_type = NO_COALESCE;
1037 }
1038 }
1039 else{
1040
1041 rx_pkt_size = rx_data_rate/rx_pkt_rate;
1042 if (rx_pkt_size < 128){
1043 if(coal_conf->rx_coal_type != NO_COALESCE){
1044
1045 coal_conf->rx_timeout = 0;
1046 coal_conf->rx_event_count = 0;
1047 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1048 coal_conf->rx_coal_type = NO_COALESCE;
1049 }
1050
1051 }
1052 else if ( (rx_pkt_size >= 128) && (rx_pkt_size < 512) ){
1053
1054 if(coal_conf->rx_coal_type != LOW_COALESCE){
1055 coal_conf->rx_timeout = 1;
1056 coal_conf->rx_event_count = 4;
1057 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1058 coal_conf->rx_coal_type = LOW_COALESCE;
1059 }
1060 }
1061 else if ((rx_pkt_size >= 512) && (rx_pkt_size < 1024)){
1062
1063 if(coal_conf->rx_coal_type != MEDIUM_COALESCE){
1064 coal_conf->rx_timeout = 1;
1065 coal_conf->rx_event_count = 4;
1066 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1067 coal_conf->rx_coal_type = MEDIUM_COALESCE;
1068 }
1069
1070 }
1071 else if(rx_pkt_size >= 1024){
1072 if(coal_conf->rx_coal_type != HIGH_COALESCE){
1073 coal_conf->rx_timeout = 2;
1074 coal_conf->rx_event_count = 3;
1075 amd8111e_set_coalesce(dev,RX_INTR_COAL);
1076 coal_conf->rx_coal_type = HIGH_COALESCE;
1077 }
1078 }
1079 }
1080 /* NOW FOR TX INTR COALESC */
1081 if(tx_pkt_rate < 800){
1082 if(coal_conf->tx_coal_type != NO_COALESCE){
1083
1084 coal_conf->tx_timeout = 0x0;
1085 coal_conf->tx_event_count = 0;
1086 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1087 coal_conf->tx_coal_type = NO_COALESCE;
1088 }
1089 }
1090 else{
1091
1092 tx_pkt_size = tx_data_rate/tx_pkt_rate;
1093 if (tx_pkt_size < 128){
1094
1095 if(coal_conf->tx_coal_type != NO_COALESCE){
1096
1097 coal_conf->tx_timeout = 0;
1098 coal_conf->tx_event_count = 0;
1099 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1100 coal_conf->tx_coal_type = NO_COALESCE;
1101 }
1102
1103 }
1104 else if ( (tx_pkt_size >= 128) && (tx_pkt_size < 512) ){
1105
1106 if(coal_conf->tx_coal_type != LOW_COALESCE){
1107 coal_conf->tx_timeout = 1;
1108 coal_conf->tx_event_count = 2;
1109 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1110 coal_conf->tx_coal_type = LOW_COALESCE;
1111
1112 }
1113 }
1114 else if ((tx_pkt_size >= 512) && (tx_pkt_size < 1024)){
1115
1116 if(coal_conf->tx_coal_type != MEDIUM_COALESCE){
1117 coal_conf->tx_timeout = 2;
1118 coal_conf->tx_event_count = 5;
1119 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1120 coal_conf->tx_coal_type = MEDIUM_COALESCE;
1121 }
1122
1123 }
1124 else if(tx_pkt_size >= 1024){
1125 if (tx_pkt_size >= 1024){
1126 if(coal_conf->tx_coal_type != HIGH_COALESCE){
1127 coal_conf->tx_timeout = 4;
1128 coal_conf->tx_event_count = 8;
1129 amd8111e_set_coalesce(dev,TX_INTR_COAL);
1130 coal_conf->tx_coal_type = HIGH_COALESCE;
1131 }
1132 }
1133 }
1134 }
1135 return 0;
1136
1137 }
1138 /*
1139 This is device interrupt function. It handles transmit, receive,link change and hardware timer interrupts.
1140 */
1141 static irqreturn_t amd8111e_interrupt(int irq, void *dev_id)
1142 {
1143
1144 struct net_device * dev = (struct net_device *) dev_id;
1145 struct amd8111e_priv *lp = netdev_priv(dev);
1146 void __iomem *mmio = lp->mmio;
1147 unsigned int intr0, intren0;
1148 unsigned int handled = 1;
1149
1150 if(unlikely(dev == NULL))
1151 return IRQ_NONE;
1152
1153 spin_lock(&lp->lock);
1154
1155 /* disabling interrupt */
1156 writel(INTREN, mmio + CMD0);
1157
1158 /* Read interrupt status */
1159 intr0 = readl(mmio + INT0);
1160 intren0 = readl(mmio + INTEN0);
1161
1162 /* Process all the INT event until INTR bit is clear. */
1163
1164 if (!(intr0 & INTR)){
1165 handled = 0;
1166 goto err_no_interrupt;
1167 }
1168
1169 /* Current driver processes 4 interrupts : RINT,TINT,LCINT,STINT */
1170 writel(intr0, mmio + INT0);
1171
1172 /* Check if Receive Interrupt has occurred. */
1173 if (intr0 & RINT0) {
1174 if (netif_rx_schedule_prep(dev, &lp->napi)) {
1175 /* Disable receive interupts */
1176 writel(RINTEN0, mmio + INTEN0);
1177 /* Schedule a polling routine */
1178 __netif_rx_schedule(dev, &lp->napi);
1179 } else if (intren0 & RINTEN0) {
1180 printk("************Driver bug! \
1181 interrupt while in poll\n");
1182 /* Fix by disable receive interrupts */
1183 writel(RINTEN0, mmio + INTEN0);
1184 }
1185 }
1186
1187 /* Check if Transmit Interrupt has occurred. */
1188 if (intr0 & TINT0)
1189 amd8111e_tx(dev);
1190
1191 /* Check if Link Change Interrupt has occurred. */
1192 if (intr0 & LCINT)
1193 amd8111e_link_change(dev);
1194
1195 /* Check if Hardware Timer Interrupt has occurred. */
1196 if (intr0 & STINT)
1197 amd8111e_calc_coalesce(dev);
1198
1199 err_no_interrupt:
1200 writel( VAL0 | INTREN,mmio + CMD0);
1201
1202 spin_unlock(&lp->lock);
1203
1204 return IRQ_RETVAL(handled);
1205 }
1206
1207 #ifdef CONFIG_NET_POLL_CONTROLLER
1208 static void amd8111e_poll(struct net_device *dev)
1209 {
1210 unsigned long flags;
1211 local_irq_save(flags);
1212 amd8111e_interrupt(0, dev);
1213 local_irq_restore(flags);
1214 }
1215 #endif
1216
1217
1218 /*
1219 This function closes the network interface and updates the statistics so that most recent statistics will be available after the interface is down.
1220 */
1221 static int amd8111e_close(struct net_device * dev)
1222 {
1223 struct amd8111e_priv *lp = netdev_priv(dev);
1224 netif_stop_queue(dev);
1225
1226 napi_disable(&lp->napi);
1227
1228 spin_lock_irq(&lp->lock);
1229
1230 amd8111e_disable_interrupt(lp);
1231 amd8111e_stop_chip(lp);
1232
1233 /* Free transmit and receive skbs */
1234 amd8111e_free_skbs(lp->amd8111e_net_dev);
1235
1236 netif_carrier_off(lp->amd8111e_net_dev);
1237
1238 /* Delete ipg timer */
1239 if(lp->options & OPTION_DYN_IPG_ENABLE)
1240 del_timer_sync(&lp->ipg_data.ipg_timer);
1241
1242 spin_unlock_irq(&lp->lock);
1243 free_irq(dev->irq, dev);
1244 amd8111e_free_ring(lp);
1245
1246 /* Update the statistics before closing */
1247 amd8111e_get_stats(dev);
1248 lp->opened = 0;
1249 return 0;
1250 }
1251 /* This function opens new interface.It requests irq for the device, initializes the device,buffers and descriptors, and starts the device.
1252 */
1253 static int amd8111e_open(struct net_device * dev )
1254 {
1255 struct amd8111e_priv *lp = netdev_priv(dev);
1256
1257 if(dev->irq ==0 || request_irq(dev->irq, amd8111e_interrupt, IRQF_SHARED,
1258 dev->name, dev))
1259 return -EAGAIN;
1260
1261 napi_enable(&lp->napi);
1262
1263 spin_lock_irq(&lp->lock);
1264
1265 amd8111e_init_hw_default(lp);
1266
1267 if(amd8111e_restart(dev)){
1268 spin_unlock_irq(&lp->lock);
1269 napi_disable(&lp->napi);
1270 if (dev->irq)
1271 free_irq(dev->irq, dev);
1272 return -ENOMEM;
1273 }
1274 /* Start ipg timer */
1275 if(lp->options & OPTION_DYN_IPG_ENABLE){
1276 add_timer(&lp->ipg_data.ipg_timer);
1277 printk(KERN_INFO "%s: Dynamic IPG Enabled.\n",dev->name);
1278 }
1279
1280 lp->opened = 1;
1281
1282 spin_unlock_irq(&lp->lock);
1283
1284 netif_start_queue(dev);
1285
1286 return 0;
1287 }
1288 /*
1289 This function checks if there is any transmit descriptors available to queue more packet.
1290 */
1291 static int amd8111e_tx_queue_avail(struct amd8111e_priv* lp )
1292 {
1293 int tx_index = lp->tx_idx & TX_BUFF_MOD_MASK;
1294 if (lp->tx_skbuff[tx_index])
1295 return -1;
1296 else
1297 return 0;
1298
1299 }
1300 /*
1301 This function will queue the transmit packets to the descriptors and will trigger the send operation. It also initializes the transmit descriptors with buffer physical address, byte count, ownership to hardware etc.
1302 */
1303
1304 static int amd8111e_start_xmit(struct sk_buff *skb, struct net_device * dev)
1305 {
1306 struct amd8111e_priv *lp = netdev_priv(dev);
1307 int tx_index;
1308 unsigned long flags;
1309
1310 spin_lock_irqsave(&lp->lock, flags);
1311
1312 tx_index = lp->tx_idx & TX_RING_DR_MOD_MASK;
1313
1314 lp->tx_ring[tx_index].buff_count = cpu_to_le16(skb->len);
1315
1316 lp->tx_skbuff[tx_index] = skb;
1317 lp->tx_ring[tx_index].tx_flags = 0;
1318
1319 #if AMD8111E_VLAN_TAG_USED
1320 if((lp->vlgrp != NULL) && vlan_tx_tag_present(skb)){
1321 lp->tx_ring[tx_index].tag_ctrl_cmd |=
1322 cpu_to_le16(TCC_VLAN_INSERT);
1323 lp->tx_ring[tx_index].tag_ctrl_info =
1324 cpu_to_le16(vlan_tx_tag_get(skb));
1325
1326 }
1327 #endif
1328 lp->tx_dma_addr[tx_index] =
1329 pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
1330 lp->tx_ring[tx_index].buff_phy_addr =
1331 cpu_to_le32(lp->tx_dma_addr[tx_index]);
1332
1333 /* Set FCS and LTINT bits */
1334 wmb();
1335 lp->tx_ring[tx_index].tx_flags |=
1336 cpu_to_le16(OWN_BIT | STP_BIT | ENP_BIT|ADD_FCS_BIT|LTINT_BIT);
1337
1338 lp->tx_idx++;
1339
1340 /* Trigger an immediate send poll. */
1341 writel( VAL1 | TDMD0, lp->mmio + CMD0);
1342 writel( VAL2 | RDMD0,lp->mmio + CMD0);
1343
1344 dev->trans_start = jiffies;
1345
1346 if(amd8111e_tx_queue_avail(lp) < 0){
1347 netif_stop_queue(dev);
1348 }
1349 spin_unlock_irqrestore(&lp->lock, flags);
1350 return 0;
1351 }
1352 /*
1353 This function returns all the memory mapped registers of the device.
1354 */
1355 static void amd8111e_read_regs(struct amd8111e_priv *lp, u32 *buf)
1356 {
1357 void __iomem *mmio = lp->mmio;
1358 /* Read only necessary registers */
1359 buf[0] = readl(mmio + XMT_RING_BASE_ADDR0);
1360 buf[1] = readl(mmio + XMT_RING_LEN0);
1361 buf[2] = readl(mmio + RCV_RING_BASE_ADDR0);
1362 buf[3] = readl(mmio + RCV_RING_LEN0);
1363 buf[4] = readl(mmio + CMD0);
1364 buf[5] = readl(mmio + CMD2);
1365 buf[6] = readl(mmio + CMD3);
1366 buf[7] = readl(mmio + CMD7);
1367 buf[8] = readl(mmio + INT0);
1368 buf[9] = readl(mmio + INTEN0);
1369 buf[10] = readl(mmio + LADRF);
1370 buf[11] = readl(mmio + LADRF+4);
1371 buf[12] = readl(mmio + STAT0);
1372 }
1373
1374
1375 /*
1376 This function sets promiscuos mode, all-multi mode or the multicast address
1377 list to the device.
1378 */
1379 static void amd8111e_set_multicast_list(struct net_device *dev)
1380 {
1381 struct dev_mc_list* mc_ptr;
1382 struct amd8111e_priv *lp = netdev_priv(dev);
1383 u32 mc_filter[2] ;
1384 int i,bit_num;
1385 if(dev->flags & IFF_PROMISC){
1386 writel( VAL2 | PROM, lp->mmio + CMD2);
1387 return;
1388 }
1389 else
1390 writel( PROM, lp->mmio + CMD2);
1391 if(dev->flags & IFF_ALLMULTI || dev->mc_count > MAX_FILTER_SIZE){
1392 /* get all multicast packet */
1393 mc_filter[1] = mc_filter[0] = 0xffffffff;
1394 lp->mc_list = dev->mc_list;
1395 lp->options |= OPTION_MULTICAST_ENABLE;
1396 amd8111e_writeq(*(u64*)mc_filter,lp->mmio + LADRF);
1397 return;
1398 }
1399 if( dev->mc_count == 0 ){
1400 /* get only own packets */
1401 mc_filter[1] = mc_filter[0] = 0;
1402 lp->mc_list = NULL;
1403 lp->options &= ~OPTION_MULTICAST_ENABLE;
1404 amd8111e_writeq(*(u64*)mc_filter,lp->mmio + LADRF);
1405 /* disable promiscous mode */
1406 writel(PROM, lp->mmio + CMD2);
1407 return;
1408 }
1409 /* load all the multicast addresses in the logic filter */
1410 lp->options |= OPTION_MULTICAST_ENABLE;
1411 lp->mc_list = dev->mc_list;
1412 mc_filter[1] = mc_filter[0] = 0;
1413 for (i = 0, mc_ptr = dev->mc_list; mc_ptr && i < dev->mc_count;
1414 i++, mc_ptr = mc_ptr->next) {
1415 bit_num = (ether_crc_le(ETH_ALEN, mc_ptr->dmi_addr) >> 26) & 0x3f;
1416 mc_filter[bit_num >> 5] |= 1 << (bit_num & 31);
1417 }
1418 amd8111e_writeq(*(u64*)mc_filter,lp->mmio+ LADRF);
1419
1420 /* To eliminate PCI posting bug */
1421 readl(lp->mmio + CMD2);
1422
1423 }
1424
1425 static void amd8111e_get_drvinfo(struct net_device* dev, struct ethtool_drvinfo *info)
1426 {
1427 struct amd8111e_priv *lp = netdev_priv(dev);
1428 struct pci_dev *pci_dev = lp->pci_dev;
1429 strcpy (info->driver, MODULE_NAME);
1430 strcpy (info->version, MODULE_VERS);
1431 sprintf(info->fw_version,"%u",chip_version);
1432 strcpy (info->bus_info, pci_name(pci_dev));
1433 }
1434
1435 static int amd8111e_get_regs_len(struct net_device *dev)
1436 {
1437 return AMD8111E_REG_DUMP_LEN;
1438 }
1439
1440 static void amd8111e_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
1441 {
1442 struct amd8111e_priv *lp = netdev_priv(dev);
1443 regs->version = 0;
1444 amd8111e_read_regs(lp, buf);
1445 }
1446
1447 static int amd8111e_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1448 {
1449 struct amd8111e_priv *lp = netdev_priv(dev);
1450 spin_lock_irq(&lp->lock);
1451 mii_ethtool_gset(&lp->mii_if, ecmd);
1452 spin_unlock_irq(&lp->lock);
1453 return 0;
1454 }
1455
1456 static int amd8111e_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1457 {
1458 struct amd8111e_priv *lp = netdev_priv(dev);
1459 int res;
1460 spin_lock_irq(&lp->lock);
1461 res = mii_ethtool_sset(&lp->mii_if, ecmd);
1462 spin_unlock_irq(&lp->lock);
1463 return res;
1464 }
1465
1466 static int amd8111e_nway_reset(struct net_device *dev)
1467 {
1468 struct amd8111e_priv *lp = netdev_priv(dev);
1469 return mii_nway_restart(&lp->mii_if);
1470 }
1471
1472 static u32 amd8111e_get_link(struct net_device *dev)
1473 {
1474 struct amd8111e_priv *lp = netdev_priv(dev);
1475 return mii_link_ok(&lp->mii_if);
1476 }
1477
1478 static void amd8111e_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info)
1479 {
1480 struct amd8111e_priv *lp = netdev_priv(dev);
1481 wol_info->supported = WAKE_MAGIC|WAKE_PHY;
1482 if (lp->options & OPTION_WOL_ENABLE)
1483 wol_info->wolopts = WAKE_MAGIC;
1484 }
1485
1486 static int amd8111e_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol_info)
1487 {
1488 struct amd8111e_priv *lp = netdev_priv(dev);
1489 if (wol_info->wolopts & ~(WAKE_MAGIC|WAKE_PHY))
1490 return -EINVAL;
1491 spin_lock_irq(&lp->lock);
1492 if (wol_info->wolopts & WAKE_MAGIC)
1493 lp->options |=
1494 (OPTION_WOL_ENABLE | OPTION_WAKE_MAGIC_ENABLE);
1495 else if(wol_info->wolopts & WAKE_PHY)
1496 lp->options |=
1497 (OPTION_WOL_ENABLE | OPTION_WAKE_PHY_ENABLE);
1498 else
1499 lp->options &= ~OPTION_WOL_ENABLE;
1500 spin_unlock_irq(&lp->lock);
1501 return 0;
1502 }
1503
1504 static const struct ethtool_ops ops = {
1505 .get_drvinfo = amd8111e_get_drvinfo,
1506 .get_regs_len = amd8111e_get_regs_len,
1507 .get_regs = amd8111e_get_regs,
1508 .get_settings = amd8111e_get_settings,
1509 .set_settings = amd8111e_set_settings,
1510 .nway_reset = amd8111e_nway_reset,
1511 .get_link = amd8111e_get_link,
1512 .get_wol = amd8111e_get_wol,
1513 .set_wol = amd8111e_set_wol,
1514 };
1515
1516 /*
1517 This function handles all the ethtool ioctls. It gives driver info, gets/sets driver speed, gets memory mapped register values, forces auto negotiation, sets/gets WOL options for ethtool application.
1518 */
1519
1520 static int amd8111e_ioctl(struct net_device * dev , struct ifreq *ifr, int cmd)
1521 {
1522 struct mii_ioctl_data *data = if_mii(ifr);
1523 struct amd8111e_priv *lp = netdev_priv(dev);
1524 int err;
1525 u32 mii_regval;
1526
1527 if (!capable(CAP_NET_ADMIN))
1528 return -EPERM;
1529
1530 switch(cmd) {
1531 case SIOCGMIIPHY:
1532 data->phy_id = lp->ext_phy_addr;
1533
1534 /* fallthru */
1535 case SIOCGMIIREG:
1536
1537 spin_lock_irq(&lp->lock);
1538 err = amd8111e_read_phy(lp, data->phy_id,
1539 data->reg_num & PHY_REG_ADDR_MASK, &mii_regval);
1540 spin_unlock_irq(&lp->lock);
1541
1542 data->val_out = mii_regval;
1543 return err;
1544
1545 case SIOCSMIIREG:
1546
1547 spin_lock_irq(&lp->lock);
1548 err = amd8111e_write_phy(lp, data->phy_id,
1549 data->reg_num & PHY_REG_ADDR_MASK, data->val_in);
1550 spin_unlock_irq(&lp->lock);
1551
1552 return err;
1553
1554 default:
1555 /* do nothing */
1556 break;
1557 }
1558 return -EOPNOTSUPP;
1559 }
1560 static int amd8111e_set_mac_address(struct net_device *dev, void *p)
1561 {
1562 struct amd8111e_priv *lp = netdev_priv(dev);
1563 int i;
1564 struct sockaddr *addr = p;
1565
1566 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1567 spin_lock_irq(&lp->lock);
1568 /* Setting the MAC address to the device */
1569 for(i = 0; i < ETH_ADDR_LEN; i++)
1570 writeb( dev->dev_addr[i], lp->mmio + PADR + i );
1571
1572 spin_unlock_irq(&lp->lock);
1573
1574 return 0;
1575 }
1576
1577 /*
1578 This function changes the mtu of the device. It restarts the device to initialize the descriptor with new receive buffers.
1579 */
1580 static int amd8111e_change_mtu(struct net_device *dev, int new_mtu)
1581 {
1582 struct amd8111e_priv *lp = netdev_priv(dev);
1583 int err;
1584
1585 if ((new_mtu < AMD8111E_MIN_MTU) || (new_mtu > AMD8111E_MAX_MTU))
1586 return -EINVAL;
1587
1588 if (!netif_running(dev)) {
1589 /* new_mtu will be used
1590 when device starts netxt time */
1591 dev->mtu = new_mtu;
1592 return 0;
1593 }
1594
1595 spin_lock_irq(&lp->lock);
1596
1597 /* stop the chip */
1598 writel(RUN, lp->mmio + CMD0);
1599
1600 dev->mtu = new_mtu;
1601
1602 err = amd8111e_restart(dev);
1603 spin_unlock_irq(&lp->lock);
1604 if(!err)
1605 netif_start_queue(dev);
1606 return err;
1607 }
1608
1609 #if AMD8111E_VLAN_TAG_USED
1610 static void amd8111e_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
1611 {
1612 struct amd8111e_priv *lp = netdev_priv(dev);
1613 spin_lock_irq(&lp->lock);
1614 lp->vlgrp = grp;
1615 spin_unlock_irq(&lp->lock);
1616 }
1617 #endif
1618
1619 static int amd8111e_enable_magicpkt(struct amd8111e_priv* lp)
1620 {
1621 writel( VAL1|MPPLBA, lp->mmio + CMD3);
1622 writel( VAL0|MPEN_SW, lp->mmio + CMD7);
1623
1624 /* To eliminate PCI posting bug */
1625 readl(lp->mmio + CMD7);
1626 return 0;
1627 }
1628
1629 static int amd8111e_enable_link_change(struct amd8111e_priv* lp)
1630 {
1631
1632 /* Adapter is already stoped/suspended/interrupt-disabled */
1633 writel(VAL0|LCMODE_SW,lp->mmio + CMD7);
1634
1635 /* To eliminate PCI posting bug */
1636 readl(lp->mmio + CMD7);
1637 return 0;
1638 }
1639 /* This function is called when a packet transmission fails to complete within a resonable period, on the assumption that an interrupts have been failed or the interface is locked up. This function will reinitialize the hardware */
1640
1641 static void amd8111e_tx_timeout(struct net_device *dev)
1642 {
1643 struct amd8111e_priv* lp = netdev_priv(dev);
1644 int err;
1645
1646 printk(KERN_ERR "%s: transmit timed out, resetting\n",
1647 dev->name);
1648 spin_lock_irq(&lp->lock);
1649 err = amd8111e_restart(dev);
1650 spin_unlock_irq(&lp->lock);
1651 if(!err)
1652 netif_wake_queue(dev);
1653 }
1654 static int amd8111e_suspend(struct pci_dev *pci_dev, pm_message_t state)
1655 {
1656 struct net_device *dev = pci_get_drvdata(pci_dev);
1657 struct amd8111e_priv *lp = netdev_priv(dev);
1658
1659 if (!netif_running(dev))
1660 return 0;
1661
1662 /* disable the interrupt */
1663 spin_lock_irq(&lp->lock);
1664 amd8111e_disable_interrupt(lp);
1665 spin_unlock_irq(&lp->lock);
1666
1667 netif_device_detach(dev);
1668
1669 /* stop chip */
1670 spin_lock_irq(&lp->lock);
1671 if(lp->options & OPTION_DYN_IPG_ENABLE)
1672 del_timer_sync(&lp->ipg_data.ipg_timer);
1673 amd8111e_stop_chip(lp);
1674 spin_unlock_irq(&lp->lock);
1675
1676 if(lp->options & OPTION_WOL_ENABLE){
1677 /* enable wol */
1678 if(lp->options & OPTION_WAKE_MAGIC_ENABLE)
1679 amd8111e_enable_magicpkt(lp);
1680 if(lp->options & OPTION_WAKE_PHY_ENABLE)
1681 amd8111e_enable_link_change(lp);
1682
1683 pci_enable_wake(pci_dev, PCI_D3hot, 1);
1684 pci_enable_wake(pci_dev, PCI_D3cold, 1);
1685
1686 }
1687 else{
1688 pci_enable_wake(pci_dev, PCI_D3hot, 0);
1689 pci_enable_wake(pci_dev, PCI_D3cold, 0);
1690 }
1691
1692 pci_save_state(pci_dev);
1693 pci_set_power_state(pci_dev, PCI_D3hot);
1694
1695 return 0;
1696 }
1697 static int amd8111e_resume(struct pci_dev *pci_dev)
1698 {
1699 struct net_device *dev = pci_get_drvdata(pci_dev);
1700 struct amd8111e_priv *lp = netdev_priv(dev);
1701
1702 if (!netif_running(dev))
1703 return 0;
1704
1705 pci_set_power_state(pci_dev, PCI_D0);
1706 pci_restore_state(pci_dev);
1707
1708 pci_enable_wake(pci_dev, PCI_D3hot, 0);
1709 pci_enable_wake(pci_dev, PCI_D3cold, 0); /* D3 cold */
1710
1711 netif_device_attach(dev);
1712
1713 spin_lock_irq(&lp->lock);
1714 amd8111e_restart(dev);
1715 /* Restart ipg timer */
1716 if(lp->options & OPTION_DYN_IPG_ENABLE)
1717 mod_timer(&lp->ipg_data.ipg_timer,
1718 jiffies + IPG_CONVERGE_JIFFIES);
1719 spin_unlock_irq(&lp->lock);
1720
1721 return 0;
1722 }
1723
1724
1725 static void __devexit amd8111e_remove_one(struct pci_dev *pdev)
1726 {
1727 struct net_device *dev = pci_get_drvdata(pdev);
1728 if (dev) {
1729 unregister_netdev(dev);
1730 iounmap(((struct amd8111e_priv *)netdev_priv(dev))->mmio);
1731 free_netdev(dev);
1732 pci_release_regions(pdev);
1733 pci_disable_device(pdev);
1734 pci_set_drvdata(pdev, NULL);
1735 }
1736 }
1737 static void amd8111e_config_ipg(struct net_device* dev)
1738 {
1739 struct amd8111e_priv *lp = netdev_priv(dev);
1740 struct ipg_info* ipg_data = &lp->ipg_data;
1741 void __iomem *mmio = lp->mmio;
1742 unsigned int prev_col_cnt = ipg_data->col_cnt;
1743 unsigned int total_col_cnt;
1744 unsigned int tmp_ipg;
1745
1746 if(lp->link_config.duplex == DUPLEX_FULL){
1747 ipg_data->ipg = DEFAULT_IPG;
1748 return;
1749 }
1750
1751 if(ipg_data->ipg_state == SSTATE){
1752
1753 if(ipg_data->timer_tick == IPG_STABLE_TIME){
1754
1755 ipg_data->timer_tick = 0;
1756 ipg_data->ipg = MIN_IPG - IPG_STEP;
1757 ipg_data->current_ipg = MIN_IPG;
1758 ipg_data->diff_col_cnt = 0xFFFFFFFF;
1759 ipg_data->ipg_state = CSTATE;
1760 }
1761 else
1762 ipg_data->timer_tick++;
1763 }
1764
1765 if(ipg_data->ipg_state == CSTATE){
1766
1767 /* Get the current collision count */
1768
1769 total_col_cnt = ipg_data->col_cnt =
1770 amd8111e_read_mib(mmio, xmt_collisions);
1771
1772 if ((total_col_cnt - prev_col_cnt) <
1773 (ipg_data->diff_col_cnt)){
1774
1775 ipg_data->diff_col_cnt =
1776 total_col_cnt - prev_col_cnt ;
1777
1778 ipg_data->ipg = ipg_data->current_ipg;
1779 }
1780
1781 ipg_data->current_ipg += IPG_STEP;
1782
1783 if (ipg_data->current_ipg <= MAX_IPG)
1784 tmp_ipg = ipg_data->current_ipg;
1785 else{
1786 tmp_ipg = ipg_data->ipg;
1787 ipg_data->ipg_state = SSTATE;
1788 }
1789 writew((u32)tmp_ipg, mmio + IPG);
1790 writew((u32)(tmp_ipg - IFS1_DELTA), mmio + IFS1);
1791 }
1792 mod_timer(&lp->ipg_data.ipg_timer, jiffies + IPG_CONVERGE_JIFFIES);
1793 return;
1794
1795 }
1796
1797 static void __devinit amd8111e_probe_ext_phy(struct net_device* dev)
1798 {
1799 struct amd8111e_priv *lp = netdev_priv(dev);
1800 int i;
1801
1802 for (i = 0x1e; i >= 0; i--) {
1803 u32 id1, id2;
1804
1805 if (amd8111e_read_phy(lp, i, MII_PHYSID1, &id1))
1806 continue;
1807 if (amd8111e_read_phy(lp, i, MII_PHYSID2, &id2))
1808 continue;
1809 lp->ext_phy_id = (id1 << 16) | id2;
1810 lp->ext_phy_addr = i;
1811 return;
1812 }
1813 lp->ext_phy_id = 0;
1814 lp->ext_phy_addr = 1;
1815 }
1816
1817 static int __devinit amd8111e_probe_one(struct pci_dev *pdev,
1818 const struct pci_device_id *ent)
1819 {
1820 int err,i,pm_cap;
1821 unsigned long reg_addr,reg_len;
1822 struct amd8111e_priv* lp;
1823 struct net_device* dev;
1824 DECLARE_MAC_BUF(mac);
1825
1826 err = pci_enable_device(pdev);
1827 if(err){
1828 printk(KERN_ERR "amd8111e: Cannot enable new PCI device, "
1829 "exiting.\n");
1830 return err;
1831 }
1832
1833 if(!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)){
1834 printk(KERN_ERR "amd8111e: Cannot find PCI base address, "
1835 "exiting.\n");
1836 err = -ENODEV;
1837 goto err_disable_pdev;
1838 }
1839
1840 err = pci_request_regions(pdev, MODULE_NAME);
1841 if(err){
1842 printk(KERN_ERR "amd8111e: Cannot obtain PCI resources, "
1843 "exiting.\n");
1844 goto err_disable_pdev;
1845 }
1846
1847 pci_set_master(pdev);
1848
1849 /* Find power-management capability. */
1850 if((pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM))==0){
1851 printk(KERN_ERR "amd8111e: No Power Management capability, "
1852 "exiting.\n");
1853 goto err_free_reg;
1854 }
1855
1856 /* Initialize DMA */
1857 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) < 0) {
1858 printk(KERN_ERR "amd8111e: DMA not supported,"
1859 "exiting.\n");
1860 goto err_free_reg;
1861 }
1862
1863 reg_addr = pci_resource_start(pdev, 0);
1864 reg_len = pci_resource_len(pdev, 0);
1865
1866 dev = alloc_etherdev(sizeof(struct amd8111e_priv));
1867 if (!dev) {
1868 printk(KERN_ERR "amd8111e: Etherdev alloc failed, exiting.\n");
1869 err = -ENOMEM;
1870 goto err_free_reg;
1871 }
1872
1873 SET_NETDEV_DEV(dev, &pdev->dev);
1874
1875 #if AMD8111E_VLAN_TAG_USED
1876 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX ;
1877 dev->vlan_rx_register =amd8111e_vlan_rx_register;
1878 #endif
1879
1880 lp = netdev_priv(dev);
1881 lp->pci_dev = pdev;
1882 lp->amd8111e_net_dev = dev;
1883 lp->pm_cap = pm_cap;
1884
1885 spin_lock_init(&lp->lock);
1886
1887 lp->mmio = ioremap(reg_addr, reg_len);
1888 if (!lp->mmio) {
1889 printk(KERN_ERR "amd8111e: Cannot map device registers, "
1890 "exiting\n");
1891 err = -ENOMEM;
1892 goto err_free_dev;
1893 }
1894
1895 /* Initializing MAC address */
1896 for(i = 0; i < ETH_ADDR_LEN; i++)
1897 dev->dev_addr[i] = readb(lp->mmio + PADR + i);
1898
1899 /* Setting user defined parametrs */
1900 lp->ext_phy_option = speed_duplex[card_idx];
1901 if(coalesce[card_idx])
1902 lp->options |= OPTION_INTR_COAL_ENABLE;
1903 if(dynamic_ipg[card_idx++])
1904 lp->options |= OPTION_DYN_IPG_ENABLE;
1905
1906 /* Initialize driver entry points */
1907 dev->open = amd8111e_open;
1908 dev->hard_start_xmit = amd8111e_start_xmit;
1909 dev->stop = amd8111e_close;
1910 dev->get_stats = amd8111e_get_stats;
1911 dev->set_multicast_list = amd8111e_set_multicast_list;
1912 dev->set_mac_address = amd8111e_set_mac_address;
1913 dev->do_ioctl = amd8111e_ioctl;
1914 dev->change_mtu = amd8111e_change_mtu;
1915 SET_ETHTOOL_OPS(dev, &ops);
1916 dev->irq =pdev->irq;
1917 dev->tx_timeout = amd8111e_tx_timeout;
1918 dev->watchdog_timeo = AMD8111E_TX_TIMEOUT;
1919 netif_napi_add(dev, &lp->napi, amd8111e_rx_poll, 32);
1920 #ifdef CONFIG_NET_POLL_CONTROLLER
1921 dev->poll_controller = amd8111e_poll;
1922 #endif
1923
1924 #if AMD8111E_VLAN_TAG_USED
1925 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1926 dev->vlan_rx_register =amd8111e_vlan_rx_register;
1927 #endif
1928 /* Probe the external PHY */
1929 amd8111e_probe_ext_phy(dev);
1930
1931 /* setting mii default values */
1932 lp->mii_if.dev = dev;
1933 lp->mii_if.mdio_read = amd8111e_mdio_read;
1934 lp->mii_if.mdio_write = amd8111e_mdio_write;
1935 lp->mii_if.phy_id = lp->ext_phy_addr;
1936
1937 /* Set receive buffer length and set jumbo option*/
1938 amd8111e_set_rx_buff_len(dev);
1939
1940
1941 err = register_netdev(dev);
1942 if (err) {
1943 printk(KERN_ERR "amd8111e: Cannot register net device, "
1944 "exiting.\n");
1945 goto err_iounmap;
1946 }
1947
1948 pci_set_drvdata(pdev, dev);
1949
1950 /* Initialize software ipg timer */
1951 if(lp->options & OPTION_DYN_IPG_ENABLE){
1952 init_timer(&lp->ipg_data.ipg_timer);
1953 lp->ipg_data.ipg_timer.data = (unsigned long) dev;
1954 lp->ipg_data.ipg_timer.function = (void *)&amd8111e_config_ipg;
1955 lp->ipg_data.ipg_timer.expires = jiffies +
1956 IPG_CONVERGE_JIFFIES;
1957 lp->ipg_data.ipg = DEFAULT_IPG;
1958 lp->ipg_data.ipg_state = CSTATE;
1959 };
1960
1961 /* display driver and device information */
1962
1963 chip_version = (readl(lp->mmio + CHIPID) & 0xf0000000)>>28;
1964 printk(KERN_INFO "%s: AMD-8111e Driver Version: %s\n",
1965 dev->name,MODULE_VERS);
1966 printk(KERN_INFO "%s: [ Rev %x ] PCI 10/100BaseT Ethernet %s\n",
1967 dev->name, chip_version, print_mac(mac, dev->dev_addr));
1968 if (lp->ext_phy_id)
1969 printk(KERN_INFO "%s: Found MII PHY ID 0x%08x at address 0x%02x\n",
1970 dev->name, lp->ext_phy_id, lp->ext_phy_addr);
1971 else
1972 printk(KERN_INFO "%s: Couldn't detect MII PHY, assuming address 0x01\n",
1973 dev->name);
1974 return 0;
1975 err_iounmap:
1976 iounmap(lp->mmio);
1977
1978 err_free_dev:
1979 free_netdev(dev);
1980
1981 err_free_reg:
1982 pci_release_regions(pdev);
1983
1984 err_disable_pdev:
1985 pci_disable_device(pdev);
1986 pci_set_drvdata(pdev, NULL);
1987 return err;
1988
1989 }
1990
1991 static struct pci_driver amd8111e_driver = {
1992 .name = MODULE_NAME,
1993 .id_table = amd8111e_pci_tbl,
1994 .probe = amd8111e_probe_one,
1995 .remove = __devexit_p(amd8111e_remove_one),
1996 .suspend = amd8111e_suspend,
1997 .resume = amd8111e_resume
1998 };
1999
2000 static int __init amd8111e_init(void)
2001 {
2002 return pci_register_driver(&amd8111e_driver);
2003 }
2004
2005 static void __exit amd8111e_cleanup(void)
2006 {
2007 pci_unregister_driver(&amd8111e_driver);
2008 }
2009
2010 module_init(amd8111e_init);
2011 module_exit(amd8111e_cleanup);
kernel source for telekom puls (alcatel/mediatek)