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signals: consolidate checks for whether or not to ignore a signal
[deliverable/linux.git] / drivers / net / fs_enet / fs_enet-main.c
CommitLineData
48257c4f
PA		 1/*
2 * Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
3 *
9b8ee8e7 4 * Copyright (c) 2003 Intracom S.A.
48257c4f 5 * by Pantelis Antoniou <panto@intracom.gr>
9b8ee8e7
VB		 6 *
7 * 2005 (c) MontaVista Software, Inc.
48257c4f
PA		 8 * Vitaly Bordug <vbordug@ru.mvista.com>
9 *
10 * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
11 * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
12 *
9b8ee8e7
VB		 13 * This file is licensed under the terms of the GNU General Public License
14 * version 2. This program is licensed "as is" without any warranty of any
48257c4f
PA		 15 * kind, whether express or implied.
16 */
17
48257c4f
PA		 18#include <linux/module.h>
19#include <linux/kernel.h>
20#include <linux/types.h>
48257c4f
PA		 21#include <linux/string.h>
22#include <linux/ptrace.h>
23#include <linux/errno.h>
24#include <linux/ioport.h>
25#include <linux/slab.h>
26#include <linux/interrupt.h>
48257c4f
PA		 27#include <linux/init.h>
28#include <linux/delay.h>
29#include <linux/netdevice.h>
30#include <linux/etherdevice.h>
31#include <linux/skbuff.h>
32#include <linux/spinlock.h>
33#include <linux/mii.h>
34#include <linux/ethtool.h>
35#include <linux/bitops.h>
36#include <linux/fs.h>
f7b99969 37#include <linux/platform_device.h>
5b4b8454 38#include <linux/phy.h>
48257c4f
PA		 39
40#include <linux/vmalloc.h>
48257c4f
PA		 41#include <asm/pgtable.h>
42#include <asm/irq.h>
43#include <asm/uaccess.h>
44
976de6a8
SW		 45#ifdef CONFIG_PPC_CPM_NEW_BINDING
46#include <asm/of_platform.h>
47#endif
48
48257c4f
PA		 49#include "fs_enet.h"
50
51/*************************************************/
52
976de6a8 53#ifndef CONFIG_PPC_CPM_NEW_BINDING
48257c4f
PA		 54static char version[] __devinitdata =
55 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
976de6a8 56#endif
48257c4f
PA		 57
58MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
59MODULE_DESCRIPTION("Freescale Ethernet Driver");
60MODULE_LICENSE("GPL");
61MODULE_VERSION(DRV_MODULE_VERSION);
62
31a5bb04 63static int fs_enet_debug = -1; /* -1 == use FS_ENET_DEF_MSG_ENABLE as value */
8d3b33f6 64module_param(fs_enet_debug, int, 0);
48257c4f
PA		 65MODULE_PARM_DESC(fs_enet_debug,
66 "Freescale bitmapped debugging message enable value");
67
9b8ee8e7
VB		 68#ifdef CONFIG_NET_POLL_CONTROLLER
69static void fs_enet_netpoll(struct net_device *dev);
70#endif
48257c4f
PA		 71
72static void fs_set_multicast_list(struct net_device *dev)
73{
74 struct fs_enet_private *fep = netdev_priv(dev);
75
76 (*fep->ops->set_multicast_list)(dev);
77}
78
0d0d9c15
SW		 79static void skb_align(struct sk_buff *skb, int align)
80{
81 int off = ((unsigned long)skb->data) & (align - 1);
82
83 if (off)
84 skb_reserve(skb, align - off);
85}
86
48257c4f 87/* NAPI receive function */
bea3348e 88static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
48257c4f 89{
bea3348e 90 struct fs_enet_private *fep = container_of(napi, struct fs_enet_private, napi);
f860f49e 91 struct net_device *dev = fep->ndev;
48257c4f 92 const struct fs_platform_info *fpi = fep->fpi;
31a5bb04 93 cbd_t __iomem *bdp;
48257c4f
PA		 94 struct sk_buff *skb, *skbn, *skbt;
95 int received = 0;
96 u16 pkt_len, sc;
97 int curidx;
48257c4f 98
48257c4f
PA		 99 /*
100 * First, grab all of the stats for the incoming packet.
101 * These get messed up if we get called due to a busy condition.
102 */
103 bdp = fep->cur_rx;
104
105 /* clear RX status bits for napi*/
106 (*fep->ops->napi_clear_rx_event)(dev);
107
108 while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
48257c4f
PA		 109 curidx = bdp - fep->rx_bd_base;
110
111 /*
112 * Since we have allocated space to hold a complete frame,
113 * the last indicator should be set.
114 */
115 if ((sc & BD_ENET_RX_LAST) == 0)
116 printk(KERN_WARNING DRV_MODULE_NAME
117 ": %s rcv is not +last\n",
118 dev->name);
119
120 /*
9b8ee8e7 121 * Check for errors.
48257c4f
PA		 122 */
123 if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
124 BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
125 fep->stats.rx_errors++;
126 /* Frame too long or too short. */
127 if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
128 fep->stats.rx_length_errors++;
129 /* Frame alignment */
130 if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
131 fep->stats.rx_frame_errors++;
132 /* CRC Error */
133 if (sc & BD_ENET_RX_CR)
134 fep->stats.rx_crc_errors++;
135 /* FIFO overrun */
136 if (sc & BD_ENET_RX_OV)
137 fep->stats.rx_crc_errors++;
138
139 skb = fep->rx_skbuff[curidx];
140
34e30d61 141 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
48257c4f
PA		 142 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
143 DMA_FROM_DEVICE);
144
145 skbn = skb;
146
147 } else {
48257c4f
PA		 148 skb = fep->rx_skbuff[curidx];
149
34e30d61 150 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
48257c4f
PA		 151 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
152 DMA_FROM_DEVICE);
153
154 /*
155 * Process the incoming frame.
156 */
157 fep->stats.rx_packets++;
158 pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
159 fep->stats.rx_bytes += pkt_len + 4;
160
161 if (pkt_len <= fpi->rx_copybreak) {
162 /* +2 to make IP header L1 cache aligned */
163 skbn = dev_alloc_skb(pkt_len + 2);
164 if (skbn != NULL) {
165 skb_reserve(skbn, 2); /* align IP header */
d626f62b
ACM		 166 skb_copy_from_linear_data(skb,
167 skbn->data, pkt_len);
48257c4f
PA		 168 /* swap */
169 skbt = skb;
170 skb = skbn;
171 skbn = skbt;
172 }
0d0d9c15 173 } else {
48257c4f
PA		 174 skbn = dev_alloc_skb(ENET_RX_FRSIZE);
175
0d0d9c15
SW		 176 if (skbn)
177 skb_align(skbn, ENET_RX_ALIGN);
178 }
179
48257c4f 180 if (skbn != NULL) {
48257c4f
PA		 181 skb_put(skb, pkt_len); /* Make room */
182 skb->protocol = eth_type_trans(skb, dev);
183 received++;
184 netif_receive_skb(skb);
185 } else {
186 printk(KERN_WARNING DRV_MODULE_NAME
187 ": %s Memory squeeze, dropping packet.\n",
188 dev->name);
189 fep->stats.rx_dropped++;
190 skbn = skb;
191 }
192 }
193
194 fep->rx_skbuff[curidx] = skbn;
195 CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
196 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
197 DMA_FROM_DEVICE));
198 CBDW_DATLEN(bdp, 0);
199 CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
200
201 /*
9b8ee8e7 202 * Update BD pointer to next entry.
48257c4f
PA		 203 */
204 if ((sc & BD_ENET_RX_WRAP) == 0)
205 bdp++;
206 else
207 bdp = fep->rx_bd_base;
208
209 (*fep->ops->rx_bd_done)(dev);
bea3348e
SH		 210
211 if (received >= budget)
212 break;
48257c4f
PA		 213 }
214
215 fep->cur_rx = bdp;
216
f860f49e 217 if (received < budget) {
bea3348e
SH		 218 /* done */
219 netif_rx_complete(dev, napi);
220 (*fep->ops->napi_enable_rx)(dev);
221 }
222 return received;
48257c4f
PA		 223}
224
225/* non NAPI receive function */
226static int fs_enet_rx_non_napi(struct net_device *dev)
227{
228 struct fs_enet_private *fep = netdev_priv(dev);
229 const struct fs_platform_info *fpi = fep->fpi;
31a5bb04 230 cbd_t __iomem *bdp;
48257c4f
PA		 231 struct sk_buff *skb, *skbn, *skbt;
232 int received = 0;
233 u16 pkt_len, sc;
234 int curidx;
235 /*
236 * First, grab all of the stats for the incoming packet.
237 * These get messed up if we get called due to a busy condition.
238 */
239 bdp = fep->cur_rx;
240
241 while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
242
243 curidx = bdp - fep->rx_bd_base;
244
245 /*
246 * Since we have allocated space to hold a complete frame,
247 * the last indicator should be set.
248 */
249 if ((sc & BD_ENET_RX_LAST) == 0)
250 printk(KERN_WARNING DRV_MODULE_NAME
251 ": %s rcv is not +last\n",
252 dev->name);
253
254 /*
9b8ee8e7 255 * Check for errors.
48257c4f
PA		 256 */
257 if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
258 BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
259 fep->stats.rx_errors++;
260 /* Frame too long or too short. */
261 if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
262 fep->stats.rx_length_errors++;
263 /* Frame alignment */
264 if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
265 fep->stats.rx_frame_errors++;
266 /* CRC Error */
267 if (sc & BD_ENET_RX_CR)
268 fep->stats.rx_crc_errors++;
269 /* FIFO overrun */
270 if (sc & BD_ENET_RX_OV)
271 fep->stats.rx_crc_errors++;
272
273 skb = fep->rx_skbuff[curidx];
274
34e30d61 275 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
48257c4f
PA		 276 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
277 DMA_FROM_DEVICE);
278
279 skbn = skb;
280
281 } else {
282
283 skb = fep->rx_skbuff[curidx];
284
34e30d61 285 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
48257c4f
PA		 286 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
287 DMA_FROM_DEVICE);
288
289 /*
290 * Process the incoming frame.
291 */
292 fep->stats.rx_packets++;
293 pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
294 fep->stats.rx_bytes += pkt_len + 4;
295
296 if (pkt_len <= fpi->rx_copybreak) {
297 /* +2 to make IP header L1 cache aligned */
298 skbn = dev_alloc_skb(pkt_len + 2);
299 if (skbn != NULL) {
300 skb_reserve(skbn, 2); /* align IP header */
d626f62b
ACM		 301 skb_copy_from_linear_data(skb,
302 skbn->data, pkt_len);
48257c4f
PA		 303 /* swap */
304 skbt = skb;
305 skb = skbn;
306 skbn = skbt;
307 }
0d0d9c15 308 } else {
48257c4f
PA		 309 skbn = dev_alloc_skb(ENET_RX_FRSIZE);
310
0d0d9c15
SW		 311 if (skbn)
312 skb_align(skbn, ENET_RX_ALIGN);
313 }
314
48257c4f 315 if (skbn != NULL) {
48257c4f
PA		 316 skb_put(skb, pkt_len); /* Make room */
317 skb->protocol = eth_type_trans(skb, dev);
318 received++;
319 netif_rx(skb);
320 } else {
321 printk(KERN_WARNING DRV_MODULE_NAME
322 ": %s Memory squeeze, dropping packet.\n",
323 dev->name);
324 fep->stats.rx_dropped++;
325 skbn = skb;
326 }
327 }
328
329 fep->rx_skbuff[curidx] = skbn;
330 CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
331 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
332 DMA_FROM_DEVICE));
333 CBDW_DATLEN(bdp, 0);
334 CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
335
336 /*
9b8ee8e7 337 * Update BD pointer to next entry.
48257c4f
PA		 338 */
339 if ((sc & BD_ENET_RX_WRAP) == 0)
340 bdp++;
341 else
342 bdp = fep->rx_bd_base;
343
344 (*fep->ops->rx_bd_done)(dev);
345 }
346
347 fep->cur_rx = bdp;
348
349 return 0;
350}
351
352static void fs_enet_tx(struct net_device *dev)
353{
354 struct fs_enet_private *fep = netdev_priv(dev);
31a5bb04 355 cbd_t __iomem *bdp;
48257c4f
PA		 356 struct sk_buff *skb;
357 int dirtyidx, do_wake, do_restart;
358 u16 sc;
359
aa90f503 360 spin_lock(&fep->tx_lock);
48257c4f
PA		 361 bdp = fep->dirty_tx;
362
363 do_wake = do_restart = 0;
364 while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
48257c4f
PA		 365 dirtyidx = bdp - fep->tx_bd_base;
366
367 if (fep->tx_free == fep->tx_ring)
368 break;
369
370 skb = fep->tx_skbuff[dirtyidx];
371
372 /*
9b8ee8e7 373 * Check for errors.
48257c4f
PA		 374 */
375 if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC |
376 BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) {
377
378 if (sc & BD_ENET_TX_HB) /* No heartbeat */
379 fep->stats.tx_heartbeat_errors++;
380 if (sc & BD_ENET_TX_LC) /* Late collision */
381 fep->stats.tx_window_errors++;
382 if (sc & BD_ENET_TX_RL) /* Retrans limit */
383 fep->stats.tx_aborted_errors++;
384 if (sc & BD_ENET_TX_UN) /* Underrun */
385 fep->stats.tx_fifo_errors++;
386 if (sc & BD_ENET_TX_CSL) /* Carrier lost */
387 fep->stats.tx_carrier_errors++;
388
389 if (sc & (BD_ENET_TX_LC | BD_ENET_TX_RL | BD_ENET_TX_UN)) {
390 fep->stats.tx_errors++;
391 do_restart = 1;
392 }
393 } else
394 fep->stats.tx_packets++;
395
396 if (sc & BD_ENET_TX_READY)
397 printk(KERN_WARNING DRV_MODULE_NAME
398 ": %s HEY! Enet xmit interrupt and TX_READY.\n",
399 dev->name);
400
401 /*
402 * Deferred means some collisions occurred during transmit,
403 * but we eventually sent the packet OK.
404 */
405 if (sc & BD_ENET_TX_DEF)
406 fep->stats.collisions++;
407
408 /* unmap */
34e30d61
PA		 409 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
410 skb->len, DMA_TO_DEVICE);
48257c4f
PA		 411
412 /*
9b8ee8e7 413 * Free the sk buffer associated with this last transmit.
48257c4f
PA		 414 */
415 dev_kfree_skb_irq(skb);
416 fep->tx_skbuff[dirtyidx] = NULL;
417
418 /*
9b8ee8e7 419 * Update pointer to next buffer descriptor to be transmitted.
48257c4f
PA		 420 */
421 if ((sc & BD_ENET_TX_WRAP) == 0)
422 bdp++;
423 else
424 bdp = fep->tx_bd_base;
425
426 /*
427 * Since we have freed up a buffer, the ring is no longer
428 * full.
429 */
430 if (!fep->tx_free++)
431 do_wake = 1;
432 }
433
434 fep->dirty_tx = bdp;
435
436 if (do_restart)
437 (*fep->ops->tx_restart)(dev);
438
aa90f503 439 spin_unlock(&fep->tx_lock);
48257c4f
PA		 440
441 if (do_wake)
442 netif_wake_queue(dev);
443}
444
445/*
446 * The interrupt handler.
447 * This is called from the MPC core interrupt.
448 */
449static irqreturn_t
7d12e780 450fs_enet_interrupt(int irq, void *dev_id)
48257c4f
PA		 451{
452 struct net_device *dev = dev_id;
453 struct fs_enet_private *fep;
454 const struct fs_platform_info *fpi;
455 u32 int_events;
456 u32 int_clr_events;
457 int nr, napi_ok;
458 int handled;
459
460 fep = netdev_priv(dev);
461 fpi = fep->fpi;
462
463 nr = 0;
464 while ((int_events = (*fep->ops->get_int_events)(dev)) != 0) {
48257c4f
PA		 465 nr++;
466
467 int_clr_events = int_events;
468 if (fpi->use_napi)
469 int_clr_events &= ~fep->ev_napi_rx;
470
471 (*fep->ops->clear_int_events)(dev, int_clr_events);
472
473 if (int_events & fep->ev_err)
474 (*fep->ops->ev_error)(dev, int_events);
475
476 if (int_events & fep->ev_rx) {
477 if (!fpi->use_napi)
478 fs_enet_rx_non_napi(dev);
479 else {
bea3348e 480 napi_ok = napi_schedule_prep(&fep->napi);
48257c4f
PA		 481
482 (*fep->ops->napi_disable_rx)(dev);
483 (*fep->ops->clear_int_events)(dev, fep->ev_napi_rx);
484
485 /* NOTE: it is possible for FCCs in NAPI mode */
486 /* to submit a spurious interrupt while in poll */
487 if (napi_ok)
bea3348e 488 __netif_rx_schedule(dev, &fep->napi);
48257c4f
PA		 489 }
490 }
491
492 if (int_events & fep->ev_tx)
493 fs_enet_tx(dev);
494 }
495
496 handled = nr > 0;
497 return IRQ_RETVAL(handled);
498}
499
500void fs_init_bds(struct net_device *dev)
501{
502 struct fs_enet_private *fep = netdev_priv(dev);
31a5bb04 503 cbd_t __iomem *bdp;
48257c4f
PA		 504 struct sk_buff *skb;
505 int i;
506
507 fs_cleanup_bds(dev);
508
509 fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
510 fep->tx_free = fep->tx_ring;
511 fep->cur_rx = fep->rx_bd_base;
512
513 /*
9b8ee8e7 514 * Initialize the receive buffer descriptors.
48257c4f
PA		 515 */
516 for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
517 skb = dev_alloc_skb(ENET_RX_FRSIZE);
518 if (skb == NULL) {
519 printk(KERN_WARNING DRV_MODULE_NAME
520 ": %s Memory squeeze, unable to allocate skb\n",
521 dev->name);
522 break;
523 }
0d0d9c15 524 skb_align(skb, ENET_RX_ALIGN);
48257c4f 525 fep->rx_skbuff[i] = skb;
48257c4f
PA		 526 CBDW_BUFADDR(bdp,
527 dma_map_single(fep->dev, skb->data,
528 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
529 DMA_FROM_DEVICE));
530 CBDW_DATLEN(bdp, 0); /* zero */
531 CBDW_SC(bdp, BD_ENET_RX_EMPTY |
532 ((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP));
533 }
534 /*
9b8ee8e7 535 * if we failed, fillup remainder
48257c4f
PA		 536 */
537 for (; i < fep->rx_ring; i++, bdp++) {
538 fep->rx_skbuff[i] = NULL;
539 CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP);
540 }
541
542 /*
9b8ee8e7 543 * ...and the same for transmit.
48257c4f
PA		 544 */
545 for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
546 fep->tx_skbuff[i] = NULL;
547 CBDW_BUFADDR(bdp, 0);
548 CBDW_DATLEN(bdp, 0);
549 CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP);
550 }
551}
552
553void fs_cleanup_bds(struct net_device *dev)
554{
555 struct fs_enet_private *fep = netdev_priv(dev);
556 struct sk_buff *skb;
31a5bb04 557 cbd_t __iomem *bdp;
48257c4f
PA		 558 int i;
559
560 /*
9b8ee8e7 561 * Reset SKB transmit buffers.
48257c4f 562 */
34e30d61 563 for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
48257c4f
PA		 564 if ((skb = fep->tx_skbuff[i]) == NULL)
565 continue;
566
567 /* unmap */
34e30d61
PA		 568 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
569 skb->len, DMA_TO_DEVICE);
48257c4f
PA		 570
571 fep->tx_skbuff[i] = NULL;
572 dev_kfree_skb(skb);
573 }
574
575 /*
9b8ee8e7 576 * Reset SKB receive buffers
48257c4f 577 */
34e30d61 578 for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
48257c4f
PA		 579 if ((skb = fep->rx_skbuff[i]) == NULL)
580 continue;
581
582 /* unmap */
34e30d61 583 dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
48257c4f
PA		 584 L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
585 DMA_FROM_DEVICE);
586
587 fep->rx_skbuff[i] = NULL;
588
589 dev_kfree_skb(skb);
590 }
591}
592
593/**********************************************************************************/
594
595static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
596{
597 struct fs_enet_private *fep = netdev_priv(dev);
31a5bb04 598 cbd_t __iomem *bdp;
48257c4f
PA		 599 int curidx;
600 u16 sc;
601 unsigned long flags;
602
603 spin_lock_irqsave(&fep->tx_lock, flags);
604
605 /*
9b8ee8e7 606 * Fill in a Tx ring entry
48257c4f
PA		 607 */
608 bdp = fep->cur_tx;
609
610 if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) {
611 netif_stop_queue(dev);
612 spin_unlock_irqrestore(&fep->tx_lock, flags);
613
614 /*
615 * Ooops. All transmit buffers are full. Bail out.
616 * This should not happen, since the tx queue should be stopped.
617 */
618 printk(KERN_WARNING DRV_MODULE_NAME
619 ": %s tx queue full!.\n", dev->name);
620 return NETDEV_TX_BUSY;
621 }
622
623 curidx = bdp - fep->tx_bd_base;
624 /*
9b8ee8e7 625 * Clear all of the status flags.
48257c4f
PA		 626 */
627 CBDC_SC(bdp, BD_ENET_TX_STATS);
628
629 /*
9b8ee8e7 630 * Save skb pointer.
48257c4f
PA		 631 */
632 fep->tx_skbuff[curidx] = skb;
633
634 fep->stats.tx_bytes += skb->len;
635
636 /*
9b8ee8e7 637 * Push the data cache so the CPM does not get stale memory data.
48257c4f
PA		 638 */
639 CBDW_BUFADDR(bdp, dma_map_single(fep->dev,
640 skb->data, skb->len, DMA_TO_DEVICE));
641 CBDW_DATLEN(bdp, skb->len);
642
643 dev->trans_start = jiffies;
644
645 /*
9b8ee8e7 646 * If this was the last BD in the ring, start at the beginning again.
48257c4f
PA		 647 */
648 if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0)
649 fep->cur_tx++;
650 else
651 fep->cur_tx = fep->tx_bd_base;
652
653 if (!--fep->tx_free)
654 netif_stop_queue(dev);
655
656 /* Trigger transmission start */
657 sc = BD_ENET_TX_READY | BD_ENET_TX_INTR |
658 BD_ENET_TX_LAST | BD_ENET_TX_TC;
659
660 /* note that while FEC does not have this bit
661 * it marks it as available for software use
662 * yay for hw reuse :) */
663 if (skb->len <= 60)
664 sc |= BD_ENET_TX_PAD;
665 CBDS_SC(bdp, sc);
666
667 (*fep->ops->tx_kickstart)(dev);
668
669 spin_unlock_irqrestore(&fep->tx_lock, flags);
670
671 return NETDEV_TX_OK;
672}
673
674static int fs_request_irq(struct net_device *dev, int irq, const char *name,
7d12e780 675 irq_handler_t irqf)
48257c4f
PA		 676{
677 struct fs_enet_private *fep = netdev_priv(dev);
678
679 (*fep->ops->pre_request_irq)(dev, irq);
1fb9df5d 680 return request_irq(irq, irqf, IRQF_SHARED, name, dev);
48257c4f
PA		 681}
682
683static void fs_free_irq(struct net_device *dev, int irq)
684{
685 struct fs_enet_private *fep = netdev_priv(dev);
686
687 free_irq(irq, dev);
688 (*fep->ops->post_free_irq)(dev, irq);
689}
690
48257c4f
PA		 691static void fs_timeout(struct net_device *dev)
692{
693 struct fs_enet_private *fep = netdev_priv(dev);
694 unsigned long flags;
695 int wake = 0;
696
697 fep->stats.tx_errors++;
698
699 spin_lock_irqsave(&fep->lock, flags);
700
701 if (dev->flags & IFF_UP) {
5b4b8454 702 phy_stop(fep->phydev);
48257c4f
PA		 703 (*fep->ops->stop)(dev);
704 (*fep->ops->restart)(dev);
5b4b8454 705 phy_start(fep->phydev);
48257c4f
PA		 706 }
707
5b4b8454 708 phy_start(fep->phydev);
48257c4f
PA		 709 wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
710 spin_unlock_irqrestore(&fep->lock, flags);
711
712 if (wake)
713 netif_wake_queue(dev);
714}
715
5b4b8454
VB		 716/*-----------------------------------------------------------------------------
717 * generic link-change handler - should be sufficient for most cases
718 *-----------------------------------------------------------------------------*/
719static void generic_adjust_link(struct net_device *dev)
720{
0fb300fa
SW		 721 struct fs_enet_private *fep = netdev_priv(dev);
722 struct phy_device *phydev = fep->phydev;
723 int new_state = 0;
724
725 if (phydev->link) {
726 /* adjust to duplex mode */
727 if (phydev->duplex != fep->oldduplex) {
728 new_state = 1;
729 fep->oldduplex = phydev->duplex;
730 }
731
732 if (phydev->speed != fep->oldspeed) {
733 new_state = 1;
734 fep->oldspeed = phydev->speed;
735 }
736
737 if (!fep->oldlink) {
738 new_state = 1;
739 fep->oldlink = 1;
740 netif_schedule(dev);
741 netif_carrier_on(dev);
742 netif_start_queue(dev);
743 }
744
745 if (new_state)
746 fep->ops->restart(dev);
747 } else if (fep->oldlink) {
748 new_state = 1;
749 fep->oldlink = 0;
750 fep->oldspeed = 0;
751 fep->oldduplex = -1;
752 netif_carrier_off(dev);
753 netif_stop_queue(dev);
754 }
755
756 if (new_state && netif_msg_link(fep))
757 phy_print_status(phydev);
5b4b8454
VB		 758}
759
760
761static void fs_adjust_link(struct net_device *dev)
762{
763 struct fs_enet_private *fep = netdev_priv(dev);
764 unsigned long flags;
765
766 spin_lock_irqsave(&fep->lock, flags);
767
768 if(fep->ops->adjust_link)
769 fep->ops->adjust_link(dev);
770 else
771 generic_adjust_link(dev);
772
773 spin_unlock_irqrestore(&fep->lock, flags);
774}
775
776static int fs_init_phy(struct net_device *dev)
777{
778 struct fs_enet_private *fep = netdev_priv(dev);
779 struct phy_device *phydev;
780
781 fep->oldlink = 0;
782 fep->oldspeed = 0;
783 fep->oldduplex = -1;
784 if(fep->fpi->bus_id)
e8a2b6a4
AF		 785 phydev = phy_connect(dev, fep->fpi->bus_id, &fs_adjust_link, 0,
786 PHY_INTERFACE_MODE_MII);
5b4b8454
VB		 787 else {
788 printk("No phy bus ID specified in BSP code\n");
789 return -EINVAL;
790 }
791 if (IS_ERR(phydev)) {
792 printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
793 return PTR_ERR(phydev);
794 }
795
796 fep->phydev = phydev;
797
798 return 0;
799}
800
48257c4f
PA		 801static int fs_enet_open(struct net_device *dev)
802{
803 struct fs_enet_private *fep = netdev_priv(dev);
48257c4f 804 int r;
5b4b8454 805 int err;
48257c4f 806
f860f49e
SW		 807 if (fep->fpi->use_napi)
808 napi_enable(&fep->napi);
bea3348e 809
48257c4f
PA		 810 /* Install our interrupt handler. */
811 r = fs_request_irq(dev, fep->interrupt, "fs_enet-mac", fs_enet_interrupt);
812 if (r != 0) {
813 printk(KERN_ERR DRV_MODULE_NAME
5b4b8454 814 ": %s Could not allocate FS_ENET IRQ!", dev->name);
f860f49e
SW		 815 if (fep->fpi->use_napi)
816 napi_disable(&fep->napi);
48257c4f
PA		 817 return -EINVAL;
818 }
819
5b4b8454 820 err = fs_init_phy(dev);
f860f49e
SW		 821 if (err) {
822 if (fep->fpi->use_napi)
823 napi_disable(&fep->napi);
5b4b8454 824 return err;
bea3348e 825 }
5b4b8454 826 phy_start(fep->phydev);
48257c4f
PA		 827
828 return 0;
829}
830
831static int fs_enet_close(struct net_device *dev)
832{
833 struct fs_enet_private *fep = netdev_priv(dev);
48257c4f
PA		 834 unsigned long flags;
835
836 netif_stop_queue(dev);
837 netif_carrier_off(dev);
9a3c243d
LP		 838 if (fep->fpi->use_napi)
839 napi_disable(&fep->napi);
5b4b8454 840 phy_stop(fep->phydev);
48257c4f
PA		 841
842 spin_lock_irqsave(&fep->lock, flags);
aa90f503 843 spin_lock(&fep->tx_lock);
48257c4f 844 (*fep->ops->stop)(dev);
aa90f503 845 spin_unlock(&fep->tx_lock);
48257c4f
PA		 846 spin_unlock_irqrestore(&fep->lock, flags);
847
848 /* release any irqs */
5b4b8454
VB		 849 phy_disconnect(fep->phydev);
850 fep->phydev = NULL;
48257c4f
PA		 851 fs_free_irq(dev, fep->interrupt);
852
853 return 0;
854}
855
856static struct net_device_stats *fs_enet_get_stats(struct net_device *dev)
857{
858 struct fs_enet_private *fep = netdev_priv(dev);
859 return &fep->stats;
860}
861
862/*************************************************************************/
863
864static void fs_get_drvinfo(struct net_device *dev,
865 struct ethtool_drvinfo *info)
866{
867 strcpy(info->driver, DRV_MODULE_NAME);
868 strcpy(info->version, DRV_MODULE_VERSION);
869}
870
871static int fs_get_regs_len(struct net_device *dev)
872{
873 struct fs_enet_private *fep = netdev_priv(dev);
874
875 return (*fep->ops->get_regs_len)(dev);
876}
877
878static void fs_get_regs(struct net_device *dev, struct ethtool_regs *regs,
879 void *p)
880{
881 struct fs_enet_private *fep = netdev_priv(dev);
882 unsigned long flags;
883 int r, len;
884
885 len = regs->len;
886
887 spin_lock_irqsave(&fep->lock, flags);
888 r = (*fep->ops->get_regs)(dev, p, &len);
889 spin_unlock_irqrestore(&fep->lock, flags);
890
891 if (r == 0)
892 regs->version = 0;
893}
894
895static int fs_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
896{
897 struct fs_enet_private *fep = netdev_priv(dev);
dfd9a421
AV		 898
899 if (!fep->phydev)
900 return -ENODEV;
901
5b4b8454 902 return phy_ethtool_gset(fep->phydev, cmd);
48257c4f
PA		 903}
904
905static int fs_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
906{
907 struct fs_enet_private *fep = netdev_priv(dev);
dfd9a421
AV		 908
909 if (!fep->phydev)
910 return -ENODEV;
911
912 return phy_ethtool_sset(fep->phydev, cmd);
48257c4f
PA		 913}
914
915static int fs_nway_reset(struct net_device *dev)
916{
5b4b8454 917 return 0;
48257c4f
PA		 918}
919
920static u32 fs_get_msglevel(struct net_device *dev)
921{
922 struct fs_enet_private *fep = netdev_priv(dev);
923 return fep->msg_enable;
924}
925
926static void fs_set_msglevel(struct net_device *dev, u32 value)
927{
928 struct fs_enet_private *fep = netdev_priv(dev);
929 fep->msg_enable = value;
930}
931
7282d491 932static const struct ethtool_ops fs_ethtool_ops = {
48257c4f
PA		 933 .get_drvinfo = fs_get_drvinfo,
934 .get_regs_len = fs_get_regs_len,
935 .get_settings = fs_get_settings,
936 .set_settings = fs_set_settings,
937 .nway_reset = fs_nway_reset,
938 .get_link = ethtool_op_get_link,
939 .get_msglevel = fs_get_msglevel,
940 .set_msglevel = fs_set_msglevel,
48257c4f 941 .set_tx_csum = ethtool_op_set_tx_csum, /* local! */
48257c4f
PA		 942 .set_sg = ethtool_op_set_sg,
943 .get_regs = fs_get_regs,
944};
945
946static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
947{
948 struct fs_enet_private *fep = netdev_priv(dev);
949 struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data;
48257c4f
PA		 950
951 if (!netif_running(dev))
952 return -EINVAL;
953
5bd3670f 954 return phy_mii_ioctl(fep->phydev, mii, cmd);
48257c4f
PA		 955}
956
957extern int fs_mii_connect(struct net_device *dev);
958extern void fs_mii_disconnect(struct net_device *dev);
959
976de6a8 960#ifndef CONFIG_PPC_CPM_NEW_BINDING
48257c4f 961static struct net_device *fs_init_instance(struct device *dev,
611a15af 962 struct fs_platform_info *fpi)
48257c4f
PA		 963{
964 struct net_device *ndev = NULL;
965 struct fs_enet_private *fep = NULL;
966 int privsize, i, r, err = 0, registered = 0;
967
611a15af 968 fpi->fs_no = fs_get_id(fpi);
48257c4f
PA		 969 /* guard */
970 if ((unsigned int)fpi->fs_no >= FS_MAX_INDEX)
971 return ERR_PTR(-EINVAL);
972
973 privsize = sizeof(*fep) + (sizeof(struct sk_buff **) *
974 (fpi->rx_ring + fpi->tx_ring));
975
976 ndev = alloc_etherdev(privsize);
977 if (!ndev) {
978 err = -ENOMEM;
979 goto err;
980 }
48257c4f
PA		 981
982 fep = netdev_priv(ndev);
48257c4f
PA		 983
984 fep->dev = dev;
985 dev_set_drvdata(dev, ndev);
986 fep->fpi = fpi;
987 if (fpi->init_ioports)
d3465c92 988 fpi->init_ioports((struct fs_platform_info *)fpi);
48257c4f
PA		 989
990#ifdef CONFIG_FS_ENET_HAS_FEC
991 if (fs_get_fec_index(fpi->fs_no) >= 0)
992 fep->ops = &fs_fec_ops;
993#endif
994
995#ifdef CONFIG_FS_ENET_HAS_SCC
0fb300fa 996 if (fs_get_scc_index(fpi->fs_no) >=0)
48257c4f
PA		 997 fep->ops = &fs_scc_ops;
998#endif
999
1000#ifdef CONFIG_FS_ENET_HAS_FCC
1001 if (fs_get_fcc_index(fpi->fs_no) >= 0)
1002 fep->ops = &fs_fcc_ops;
1003#endif
1004
1005 if (fep->ops == NULL) {
1006 printk(KERN_ERR DRV_MODULE_NAME
1007 ": %s No matching ops found (%d).\n",
1008 ndev->name, fpi->fs_no);
1009 err = -EINVAL;
1010 goto err;
1011 }
1012
1013 r = (*fep->ops->setup_data)(ndev);
1014 if (r != 0) {
1015 printk(KERN_ERR DRV_MODULE_NAME
1016 ": %s setup_data failed\n",
1017 ndev->name);
1018 err = r;
1019 goto err;
1020 }
1021
1022 /* point rx_skbuff, tx_skbuff */
1023 fep->rx_skbuff = (struct sk_buff **)&fep[1];
1024 fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
1025
1026 /* init locks */
1027 spin_lock_init(&fep->lock);
1028 spin_lock_init(&fep->tx_lock);
1029
1030 /*
9b8ee8e7 1031 * Set the Ethernet address.
48257c4f
PA		 1032 */
1033 for (i = 0; i < 6; i++)
1034 ndev->dev_addr[i] = fpi->macaddr[i];
9b8ee8e7 1035
48257c4f 1036 r = (*fep->ops->allocate_bd)(ndev);
9b8ee8e7 1037
48257c4f
PA		 1038 if (fep->ring_base == NULL) {
1039 printk(KERN_ERR DRV_MODULE_NAME
1040 ": %s buffer descriptor alloc failed (%d).\n", ndev->name, r);
1041 err = r;
1042 goto err;
1043 }
1044
1045 /*
1046 * Set receive and transmit descriptor base.
1047 */
1048 fep->rx_bd_base = fep->ring_base;
1049 fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
1050
1051 /* initialize ring size variables */
1052 fep->tx_ring = fpi->tx_ring;
1053 fep->rx_ring = fpi->rx_ring;
1054
1055 /*
9b8ee8e7 1056 * The FEC Ethernet specific entries in the device structure.
48257c4f
PA		 1057 */
1058 ndev->open = fs_enet_open;
1059 ndev->hard_start_xmit = fs_enet_start_xmit;
1060 ndev->tx_timeout = fs_timeout;
1061 ndev->watchdog_timeo = 2 * HZ;
1062 ndev->stop = fs_enet_close;
1063 ndev->get_stats = fs_enet_get_stats;
1064 ndev->set_multicast_list = fs_set_multicast_list;
9b8ee8e7
VB		 1065
1066#ifdef CONFIG_NET_POLL_CONTROLLER
1067 ndev->poll_controller = fs_enet_netpoll;
1068#endif
1069
bea3348e
SH		 1070 netif_napi_add(ndev, &fep->napi,
1071 fs_enet_rx_napi, fpi->napi_weight);
1072
48257c4f
PA		 1073 ndev->ethtool_ops = &fs_ethtool_ops;
1074 ndev->do_ioctl = fs_ioctl;
1075
1076 init_timer(&fep->phy_timer_list);
1077
1078 netif_carrier_off(ndev);
1079
1080 err = register_netdev(ndev);
1081 if (err != 0) {
1082 printk(KERN_ERR DRV_MODULE_NAME
1083 ": %s register_netdev failed.\n", ndev->name);
1084 goto err;
1085 }
1086 registered = 1;
1087
48257c4f
PA		 1088
1089 return ndev;
1090
0fb300fa 1091err:
48257c4f 1092 if (ndev != NULL) {
48257c4f
PA		 1093 if (registered)
1094 unregister_netdev(ndev);
1095
1096 if (fep != NULL) {
1097 (*fep->ops->free_bd)(ndev);
1098 (*fep->ops->cleanup_data)(ndev);
1099 }
1100
1101 free_netdev(ndev);
1102 }
1103
1104 dev_set_drvdata(dev, NULL);
1105
1106 return ERR_PTR(err);
1107}
1108
1109static int fs_cleanup_instance(struct net_device *ndev)
1110{
1111 struct fs_enet_private *fep;
1112 const struct fs_platform_info *fpi;
1113 struct device *dev;
1114
1115 if (ndev == NULL)
1116 return -EINVAL;
1117
1118 fep = netdev_priv(ndev);
1119 if (fep == NULL)
1120 return -EINVAL;
1121
1122 fpi = fep->fpi;
1123
48257c4f
PA		 1124 unregister_netdev(ndev);
1125
1126 dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
31a5bb04 1127 (void __force *)fep->ring_base, fep->ring_mem_addr);
48257c4f
PA		 1128
1129 /* reset it */
1130 (*fep->ops->cleanup_data)(ndev);
1131
1132 dev = fep->dev;
1133 if (dev != NULL) {
1134 dev_set_drvdata(dev, NULL);
1135 fep->dev = NULL;
1136 }
1137
1138 free_netdev(ndev);
1139
1140 return 0;
1141}
976de6a8 1142#endif
48257c4f
PA		 1143
1144/**************************************************************************************/
1145
1146/* handy pointer to the immap */
31a5bb04 1147void __iomem *fs_enet_immap = NULL;
48257c4f
PA		 1148
1149static int setup_immap(void)
1150{
48257c4f 1151#ifdef CONFIG_CPM1
976de6a8
SW		 1152 fs_enet_immap = ioremap(IMAP_ADDR, 0x4000);
1153 WARN_ON(!fs_enet_immap);
1154#elif defined(CONFIG_CPM2)
1155 fs_enet_immap = cpm2_immr;
48257c4f 1156#endif
48257c4f
PA		 1157
1158 return 0;
1159}
1160
1161static void cleanup_immap(void)
1162{
976de6a8
SW		 1163#if defined(CONFIG_CPM1)
1164 iounmap(fs_enet_immap);
1165#endif
48257c4f
PA		 1166}
1167
1168/**************************************************************************************/
1169
976de6a8
SW		 1170#ifdef CONFIG_PPC_CPM_NEW_BINDING
1171static int __devinit find_phy(struct device_node *np,
1172 struct fs_platform_info *fpi)
1173{
1174 struct device_node *phynode, *mdionode;
1175 struct resource res;
1176 int ret = 0, len;
70f782e1
JF		 1177 const u32 *data;
1178
1179 data = of_get_property(np, "fixed-link", NULL);
1180 if (data) {
9d9326d3 1181 snprintf(fpi->bus_id, 16, "%x:%02x", 0, *data);
70f782e1
JF		 1182 return 0;
1183 }
976de6a8 1184
70f782e1 1185 data = of_get_property(np, "phy-handle", &len);
976de6a8
SW		 1186 if (!data || len != 4)
1187 return -EINVAL;
1188
1189 phynode = of_find_node_by_phandle(*data);
1190 if (!phynode)
1191 return -EINVAL;
1192
1193 mdionode = of_get_parent(phynode);
1194 if (!mdionode)
1195 goto out_put_phy;
1196
1197 ret = of_address_to_resource(mdionode, 0, &res);
1198 if (ret)
1199 goto out_put_mdio;
1200
1201 data = of_get_property(phynode, "reg", &len);
1202 if (!data || len != 4)
1203 goto out_put_mdio;
1204
9d9326d3 1205 snprintf(fpi->bus_id, 16, "%x:%02x", res.start, *data);
976de6a8
SW		 1206
1207out_put_mdio:
1208 of_node_put(mdionode);
1209out_put_phy:
1210 of_node_put(phynode);
1211 return ret;
1212}
1213
1214#ifdef CONFIG_FS_ENET_HAS_FEC
1215#define IS_FEC(match) ((match)->data == &fs_fec_ops)
1216#else
1217#define IS_FEC(match) 0
1218#endif
1219
1220static int __devinit fs_enet_probe(struct of_device *ofdev,
1221 const struct of_device_id *match)
1222{
1223 struct net_device *ndev;
1224 struct fs_enet_private *fep;
1225 struct fs_platform_info *fpi;
1226 const u32 *data;
1227 const u8 *mac_addr;
1228 int privsize, len, ret = -ENODEV;
1229
1230 fpi = kzalloc(sizeof(*fpi), GFP_KERNEL);
1231 if (!fpi)
1232 return -ENOMEM;
1233
1234 if (!IS_FEC(match)) {
1235 data = of_get_property(ofdev->node, "fsl,cpm-command", &len);
1236 if (!data || len != 4)
1237 goto out_free_fpi;
1238
1239 fpi->cp_command = *data;
1240 }
1241
1242 fpi->rx_ring = 32;
1243 fpi->tx_ring = 32;
1244 fpi->rx_copybreak = 240;
f860f49e 1245 fpi->use_napi = 1;
976de6a8
SW		 1246 fpi->napi_weight = 17;
1247
1248 ret = find_phy(ofdev->node, fpi);
1249 if (ret)
1250 goto out_free_fpi;
1251
1252 privsize = sizeof(*fep) +
1253 sizeof(struct sk_buff **) *
1254 (fpi->rx_ring + fpi->tx_ring);
1255
1256 ndev = alloc_etherdev(privsize);
1257 if (!ndev) {
1258 ret = -ENOMEM;
1259 goto out_free_fpi;
1260 }
1261
976de6a8
SW		 1262 dev_set_drvdata(&ofdev->dev, ndev);
1263
1264 fep = netdev_priv(ndev);
1265 fep->dev = &ofdev->dev;
f860f49e 1266 fep->ndev = ndev;
976de6a8
SW		 1267 fep->fpi = fpi;
1268 fep->ops = match->data;
1269
1270 ret = fep->ops->setup_data(ndev);
1271 if (ret)
1272 goto out_free_dev;
1273
1274 fep->rx_skbuff = (struct sk_buff **)&fep[1];
1275 fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
1276
1277 spin_lock_init(&fep->lock);
1278 spin_lock_init(&fep->tx_lock);
1279
1280 mac_addr = of_get_mac_address(ofdev->node);
1281 if (mac_addr)
1282 memcpy(ndev->dev_addr, mac_addr, 6);
1283
1284 ret = fep->ops->allocate_bd(ndev);
1285 if (ret)
1286 goto out_cleanup_data;
1287
1288 fep->rx_bd_base = fep->ring_base;
1289 fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
1290
1291 fep->tx_ring = fpi->tx_ring;
1292 fep->rx_ring = fpi->rx_ring;
1293
1294 ndev->open = fs_enet_open;
1295 ndev->hard_start_xmit = fs_enet_start_xmit;
1296 ndev->tx_timeout = fs_timeout;
1297 ndev->watchdog_timeo = 2 * HZ;
1298 ndev->stop = fs_enet_close;
1299 ndev->get_stats = fs_enet_get_stats;
1300 ndev->set_multicast_list = fs_set_multicast_list;
f860f49e
SW		 1301
1302 if (fpi->use_napi)
1303 netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi,
1304 fpi->napi_weight);
1305
976de6a8
SW		 1306 ndev->ethtool_ops = &fs_ethtool_ops;
1307 ndev->do_ioctl = fs_ioctl;
1308
1309 init_timer(&fep->phy_timer_list);
1310
1311 netif_carrier_off(ndev);
1312
1313 ret = register_netdev(ndev);
1314 if (ret)
1315 goto out_free_bd;
1316
1317 printk(KERN_INFO "%s: fs_enet: %02x:%02x:%02x:%02x:%02x:%02x\n",
1318 ndev->name,
1319 ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2],
1320 ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]);
1321
1322 return 0;
1323
1324out_free_bd:
1325 fep->ops->free_bd(ndev);
1326out_cleanup_data:
1327 fep->ops->cleanup_data(ndev);
1328out_free_dev:
1329 free_netdev(ndev);
1330 dev_set_drvdata(&ofdev->dev, NULL);
1331out_free_fpi:
1332 kfree(fpi);
1333 return ret;
1334}
1335
1336static int fs_enet_remove(struct of_device *ofdev)
1337{
1338 struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
1339 struct fs_enet_private *fep = netdev_priv(ndev);
1340
1341 unregister_netdev(ndev);
1342
1343 fep->ops->free_bd(ndev);
1344 fep->ops->cleanup_data(ndev);
1345 dev_set_drvdata(fep->dev, NULL);
1346
1347 free_netdev(ndev);
1348 return 0;
1349}
1350
1351static struct of_device_id fs_enet_match[] = {
1352#ifdef CONFIG_FS_ENET_HAS_SCC
1353 {
1354 .compatible = "fsl,cpm1-scc-enet",
1355 .data = (void *)&fs_scc_ops,
1356 },
1357#endif
1358#ifdef CONFIG_FS_ENET_HAS_FCC
1359 {
1360 .compatible = "fsl,cpm2-fcc-enet",
1361 .data = (void *)&fs_fcc_ops,
1362 },
1363#endif
1364#ifdef CONFIG_FS_ENET_HAS_FEC
1365 {
1366 .compatible = "fsl,pq1-fec-enet",
1367 .data = (void *)&fs_fec_ops,
1368 },
1369#endif
1370 {}
1371};
1372
1373static struct of_platform_driver fs_enet_driver = {
1374 .name = "fs_enet",
1375 .match_table = fs_enet_match,
1376 .probe = fs_enet_probe,
1377 .remove = fs_enet_remove,
1378};
1379
1380static int __init fs_init(void)
1381{
1382 int r = setup_immap();
1383 if (r != 0)
1384 return r;
1385
1386 r = of_register_platform_driver(&fs_enet_driver);
1387 if (r != 0)
1388 goto out;
1389
1390 return 0;
1391
1392out:
1393 cleanup_immap();
1394 return r;
1395}
1396
1397static void __exit fs_cleanup(void)
1398{
1399 of_unregister_platform_driver(&fs_enet_driver);
1400 cleanup_immap();
1401}
1402#else
48257c4f
PA		 1403static int __devinit fs_enet_probe(struct device *dev)
1404{
1405 struct net_device *ndev;
1406
1407 /* no fixup - no device */
1408 if (dev->platform_data == NULL) {
1409 printk(KERN_INFO "fs_enet: "
1410 "probe called with no platform data; "
1411 "remove unused devices\n");
1412 return -ENODEV;
1413 }
1414
1415 ndev = fs_init_instance(dev, dev->platform_data);
1416 if (IS_ERR(ndev))
1417 return PTR_ERR(ndev);
1418 return 0;
1419}
1420
1421static int fs_enet_remove(struct device *dev)
1422{
1423 return fs_cleanup_instance(dev_get_drvdata(dev));
1424}
1425
1426static struct device_driver fs_enet_fec_driver = {
1427 .name = "fsl-cpm-fec",
1428 .bus = &platform_bus_type,
1429 .probe = fs_enet_probe,
1430 .remove = fs_enet_remove,
1431#ifdef CONFIG_PM
1432/* .suspend = fs_enet_suspend, TODO */
1433/* .resume = fs_enet_resume, TODO */
1434#endif
1435};
1436
1437static struct device_driver fs_enet_scc_driver = {
1438 .name = "fsl-cpm-scc",
1439 .bus = &platform_bus_type,
1440 .probe = fs_enet_probe,
1441 .remove = fs_enet_remove,
1442#ifdef CONFIG_PM
1443/* .suspend = fs_enet_suspend, TODO */
1444/* .resume = fs_enet_resume, TODO */
1445#endif
1446};
1447
1448static struct device_driver fs_enet_fcc_driver = {
1449 .name = "fsl-cpm-fcc",
1450 .bus = &platform_bus_type,
1451 .probe = fs_enet_probe,
1452 .remove = fs_enet_remove,
1453#ifdef CONFIG_PM
1454/* .suspend = fs_enet_suspend, TODO */
1455/* .resume = fs_enet_resume, TODO */
1456#endif
1457};
1458
1459static int __init fs_init(void)
1460{
1461 int r;
1462
1463 printk(KERN_INFO
1464 "%s", version);
1465
1466 r = setup_immap();
1467 if (r != 0)
1468 return r;
5b4b8454
VB		 1469
1470#ifdef CONFIG_FS_ENET_HAS_FCC
1471 /* let's insert mii stuff */
1472 r = fs_enet_mdio_bb_init();
1473
1474 if (r != 0) {
1475 printk(KERN_ERR DRV_MODULE_NAME
1476 "BB PHY init failed.\n");
1477 return r;
1478 }
1479 r = driver_register(&fs_enet_fcc_driver);
48257c4f
PA		 1480 if (r != 0)
1481 goto err;
5b4b8454 1482#endif
48257c4f 1483
5b4b8454
VB		 1484#ifdef CONFIG_FS_ENET_HAS_FEC
1485 r = fs_enet_mdio_fec_init();
1486 if (r != 0) {
1487 printk(KERN_ERR DRV_MODULE_NAME
1488 "FEC PHY init failed.\n");
1489 return r;
1490 }
1491
1492 r = driver_register(&fs_enet_fec_driver);
48257c4f
PA		 1493 if (r != 0)
1494 goto err;
5b4b8454 1495#endif
48257c4f 1496
5b4b8454 1497#ifdef CONFIG_FS_ENET_HAS_SCC
48257c4f
PA		 1498 r = driver_register(&fs_enet_scc_driver);
1499 if (r != 0)
1500 goto err;
5b4b8454 1501#endif
48257c4f
PA		 1502
1503 return 0;
1504err:
1505 cleanup_immap();
1506 return r;
48257c4f
PA		 1507}
1508
1509static void __exit fs_cleanup(void)
1510{
1511 driver_unregister(&fs_enet_fec_driver);
1512 driver_unregister(&fs_enet_fcc_driver);
1513 driver_unregister(&fs_enet_scc_driver);
1514 cleanup_immap();
1515}
976de6a8 1516#endif
48257c4f 1517
9b8ee8e7
VB		 1518#ifdef CONFIG_NET_POLL_CONTROLLER
1519static void fs_enet_netpoll(struct net_device *dev)
1520{
1521 disable_irq(dev->irq);
1522 fs_enet_interrupt(dev->irq, dev, NULL);
1523 enable_irq(dev->irq);
1524}
1525#endif
1526
48257c4f
PA		 1527/**************************************************************************************/
1528
1529module_init(fs_init);
1530module_exit(fs_cleanup);
Linux kernel - Deliverables
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